1721 files changed, 107370 insertions, 52062 deletions

diff --git a/HOWTO/INSTALL-WIN32.md b/HOWTO/INSTALL-WIN32.md
index 0387572dd3..3039a5efea 100644
--- a/HOWTO/INSTALL-WIN32.md
+++ b/HOWTO/INSTALL-WIN32.md
@@ -639,30 +639,25 @@ OpenSSL. Well' here's the list:
     The installation locations chosen are where configure will look
     for OpenSSL, so try to keep them as is.
        
-*   Building with wxWidgets. Download wxWidgets-2.8.9 or higher patch
-    release (2.9.\*  is a developer release which currently does not work
-    with wxErlang).
+*   Building with wxWidgets. Download wxWidgets-3.0.2 or higher patch
+    release.
 
     Install or unpack it to `DRIVE:/PATH/cygwin/opt/local/pgm`.
 
-    edit:  `C:\cygwin\opt\local\pgm\wxMSW-2.8.11\include\wx\msw\setup.h`
-    enable `wxUSE_GLCANVAS`, `wxUSE_POSTSCRIPT` and `wxUSE_GRAPHICS_CONTEXT`
+    edit:  `C:\cygwin\opt\local\pgm\wxMSW-3.0.2\include\wx\msw\setup.h`
+    enable `wxUSE_POSTSCRIPT`
 
     build: From a command prompt with the VC tools available (See the
     instructions for OpenSSL build above for help on starting the
     proper command prompt in RELEASE mode):
 	   
-        C:\...\> cd C:\cygwin\opt\local\pgm\wxMSW-2.8.11\build\msw
-        C:\...\> nmake BUILD=release SHARED=0 UNICODE=1 USE_OPENGL=1 USE_GDIPLUS=1 DIR_SUFFIX_CPU= -f makefile.vc
-        C:\...\> cd C:\cygwin\opt\local\pgm\wxMSW-2.8.11\contrib\build\stc
-        C:\...\> nmake BUILD=release SHARED=0 UNICODE=1 USE_OPENGL=1 USE_GDIPLUS=1 DIR_SUFFIX_CPU= -f makefile.vc
+        C:\...\> cd C:\cygwin\opt\local\pgm\wxMSW-3.0.2\build\msw
+        C:\...\> nmake BUILD=release SHARED=0 DIR_SUFFIX_CPU= -f makefile.vc
     
     Or - if building a 64bit version:
 
-        C:\...\> cd C:\cygwin\opt\local\pgm\wxMSW-2.8.11\build\msw
-        C:\...\> nmake TARGET_CPU=amd64 BUILD=release SHARED=0 UNICODE=1 USE_OPENGL=1 USE_GDIPLUS=1 DIR_SUFFIX_CPU= -f makefile.vc
-        C:\...\> cd C:\cygwin\opt\local\pgm\wxMSW-2.8.11\contrib\build\stc
-        C:\...\> nmake TARGET_CPU=amd64 BUILD=release SHARED=0 UNICODE=1 USE_OPENGL=1 USE_GDIPLUS=1 DIR_SUFFIX_CPU= -f makefile.vc
+        C:\...\> cd C:\cygwin\opt\local\pgm\wxMSW-3.0.2\build\msw
+        C:\...\> nmake TARGET_CPU=amd64 BUILD=release SHARED=0 DIR_SUFFIX_CPU= -f makefile.vc
     	   
 *   The Erlang source distribution (from <http://www.erlang.org/download.html>).
     The same as for Unix platforms. Preferably use tar from within Cygwin to
diff --git a/HOWTO/INSTALL.md b/HOWTO/INSTALL.md
index 53b1b8cd8a..7efea77d4c 100644
--- a/HOWTO/INSTALL.md
+++ b/HOWTO/INSTALL.md
@@ -417,22 +417,33 @@ important when building Erlang/OTP. By default the VM will refuse to build
 if native atomic memory operations are not available.
 
 Erlang/OTP itself provides implementations of native atomic memory operations
-that can be used when compiling with a `gcc` compatible compiler on 32-bit
-and 64-bit x86, 32-bit and 64-bit SPARC V9, and 32-bit PowerPC. When compiling
-with a `gcc` compatible compiler on other architectures, the VM may be able to
-make use of native atomic operations using the `__sync_*` primitives, but this
-should only be used as a last resort since this wont give you optimal
-performance. When compiling on Windows using a MicroSoft Visual C++ compiler
-native atomic memory operations are provided by Windows APIs.
-
-You are recommended to use the native atomic implementation provided by
-Erlang/OTP, or the API provided by Windows. If these do not provide native
-atomics on your platform, you are recommended to build and install
-[libatomic_ops][] before building Erlang/OTP. The `libatomic_ops` library
-provides native atomic memory operations for a variety of platforms and
-compilers. When building Erlang/OTP you need to inform the build system of
-where the `libatomic_ops` library is installed using the
-`--with-libatomic_ops=PATH` configure switch.
+that can be used when compiling with a `gcc` compatible compiler for 32/64-bit
+x86, 32/64-bit SPARC V9, 32-bit PowerPC, or 32-bit Tile. When compiling with
+a `gcc` compatible compiler for other architectures, the VM may be able to make
+use of native atomic operations using the `__atomic_*` builtins (may be
+available when using a `gcc` of at least version 4.7) and/or using the
+`__sync_*` builtins (may be available when using a `gcc` of at least version
+4.1). If only the `gcc`'s `__sync_*` builtins are available, the performance
+will suffer. Such a configuration should only be used as a last resort. When
+compiling on Windows using a MicroSoft Visual C++ compiler native atomic
+memory operations are provided by Windows APIs.
+
+Native atomic implementation in the order preferred:
+1.  The implementation provided by Erlang/OTP.
+2.  The API provided by Windows.
+3.  The implementation based on the `gcc` `__atomic_*` builtins.
+4.  If none of the above are available for your architecture/compiler, you
+    are recommended to build and install [libatomic_ops][] before building
+    Erlang/OTP. The `libatomic_ops` library provides native atomic memory
+    operations for a variety of architectures and compilers. When building
+    Erlang/OTP you need to inform the build system of where the
+    `libatomic_ops` library is installed using the
+    `--with-libatomic_ops=PATH` `configure` switch.
+5.  As a last resort, the implementation solely based on the `gcc`
+    `__sync_*` builtins. This will however cause lots of expensive and
+    unnecessary memory barrier instructions to be issued. That is,
+    performance will suffer. The `configure` script will warn at the end
+    of its execution if it cannot find any other alternative than this.
 
 ### Building ###
 
@@ -849,7 +860,7 @@ Copyright and License
 
 %CopyrightBegin%
 
-Copyright Ericsson AB 1998-2014. All Rights Reserved.
+Copyright Ericsson AB 1998-2015. All Rights Reserved.
 
 The contents of this file are subject to the Erlang Public License,
 Version 1.1, (the "License"); you may not use this file except in
diff --git a/OTP_VERSION b/OTP_VERSION
index 3309c98bff..a18c6b9fb5 100644
--- a/OTP_VERSION
+++ b/OTP_VERSION
@@ -1 +1 @@
-17.5.6
+18.0-rc2
diff --git a/bootstrap/bin/start.boot b/bootstrap/bin/start.boot
index 6cc4fa1f43..25c092961c 100644
--- a/bootstrap/bin/start.boot
+++ b/bootstrap/bin/start.boot
diff --git a/bootstrap/bin/start_clean.boot b/bootstrap/bin/start_clean.boot
index 6cc4fa1f43..25c092961c 100644
--- a/bootstrap/bin/start_clean.boot
+++ b/bootstrap/bin/start_clean.boot
diff --git a/bootstrap/lib/compiler/ebin/beam_a.beam b/bootstrap/lib/compiler/ebin/beam_a.beam
index 87e9759ffe..3ff689bd81 100644
--- a/bootstrap/lib/compiler/ebin/beam_a.beam
+++ b/bootstrap/lib/compiler/ebin/beam_a.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_asm.beam b/bootstrap/lib/compiler/ebin/beam_asm.beam
index e6c5cc9028..b25c33084f 100644
--- a/bootstrap/lib/compiler/ebin/beam_asm.beam
+++ b/bootstrap/lib/compiler/ebin/beam_asm.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_block.beam b/bootstrap/lib/compiler/ebin/beam_block.beam
index 11482a1451..59084464a0 100644
--- a/bootstrap/lib/compiler/ebin/beam_block.beam
+++ b/bootstrap/lib/compiler/ebin/beam_block.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_bool.beam b/bootstrap/lib/compiler/ebin/beam_bool.beam
index 6454719448..0fa7612114 100644
--- a/bootstrap/lib/compiler/ebin/beam_bool.beam
+++ b/bootstrap/lib/compiler/ebin/beam_bool.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_bsm.beam b/bootstrap/lib/compiler/ebin/beam_bsm.beam
index 1b51483bb1..a6757dfcfb 100644
--- a/bootstrap/lib/compiler/ebin/beam_bsm.beam
+++ b/bootstrap/lib/compiler/ebin/beam_bsm.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_clean.beam b/bootstrap/lib/compiler/ebin/beam_clean.beam
index f6a9ff987d..2fd2d2a82f 100644
--- a/bootstrap/lib/compiler/ebin/beam_clean.beam
+++ b/bootstrap/lib/compiler/ebin/beam_clean.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_dead.beam b/bootstrap/lib/compiler/ebin/beam_dead.beam
index dc924a2905..6ae6de1d8b 100644
--- a/bootstrap/lib/compiler/ebin/beam_dead.beam
+++ b/bootstrap/lib/compiler/ebin/beam_dead.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_dict.beam b/bootstrap/lib/compiler/ebin/beam_dict.beam
index 89867ee4a3..17b3c40eda 100644
--- a/bootstrap/lib/compiler/ebin/beam_dict.beam
+++ b/bootstrap/lib/compiler/ebin/beam_dict.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_disasm.beam b/bootstrap/lib/compiler/ebin/beam_disasm.beam
index f050f39ca0..b63864c96c 100644
--- a/bootstrap/lib/compiler/ebin/beam_disasm.beam
+++ b/bootstrap/lib/compiler/ebin/beam_disasm.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_except.beam b/bootstrap/lib/compiler/ebin/beam_except.beam
index 0de15769c4..f4fccfeef7 100644
--- a/bootstrap/lib/compiler/ebin/beam_except.beam
+++ b/bootstrap/lib/compiler/ebin/beam_except.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_flatten.beam b/bootstrap/lib/compiler/ebin/beam_flatten.beam
index 35dae78125..c1d5604349 100644
--- a/bootstrap/lib/compiler/ebin/beam_flatten.beam
+++ b/bootstrap/lib/compiler/ebin/beam_flatten.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_jump.beam b/bootstrap/lib/compiler/ebin/beam_jump.beam
index 2b839bc997..8dd6375403 100644
--- a/bootstrap/lib/compiler/ebin/beam_jump.beam
+++ b/bootstrap/lib/compiler/ebin/beam_jump.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_listing.beam b/bootstrap/lib/compiler/ebin/beam_listing.beam
index 662edc0651..4d8f94c4ea 100644
--- a/bootstrap/lib/compiler/ebin/beam_listing.beam
+++ b/bootstrap/lib/compiler/ebin/beam_listing.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_peep.beam b/bootstrap/lib/compiler/ebin/beam_peep.beam
index 214fa56911..7a7856e247 100644
--- a/bootstrap/lib/compiler/ebin/beam_peep.beam
+++ b/bootstrap/lib/compiler/ebin/beam_peep.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_receive.beam b/bootstrap/lib/compiler/ebin/beam_receive.beam
index 5da32b5db6..78c9eb1c39 100644
--- a/bootstrap/lib/compiler/ebin/beam_receive.beam
+++ b/bootstrap/lib/compiler/ebin/beam_receive.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_split.beam b/bootstrap/lib/compiler/ebin/beam_split.beam
index 1d12f2cf1d..4821d92c96 100644
--- a/bootstrap/lib/compiler/ebin/beam_split.beam
+++ b/bootstrap/lib/compiler/ebin/beam_split.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_trim.beam b/bootstrap/lib/compiler/ebin/beam_trim.beam
index b844602370..6878a8a01c 100644
--- a/bootstrap/lib/compiler/ebin/beam_trim.beam
+++ b/bootstrap/lib/compiler/ebin/beam_trim.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_type.beam b/bootstrap/lib/compiler/ebin/beam_type.beam
index 7f80c1a691..cb3bc1a8bd 100644
--- a/bootstrap/lib/compiler/ebin/beam_type.beam
+++ b/bootstrap/lib/compiler/ebin/beam_type.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_utils.beam b/bootstrap/lib/compiler/ebin/beam_utils.beam
index 8507db5454..fc2e1b6c78 100644
--- a/bootstrap/lib/compiler/ebin/beam_utils.beam
+++ b/bootstrap/lib/compiler/ebin/beam_utils.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_validator.beam b/bootstrap/lib/compiler/ebin/beam_validator.beam
index 07225dc8b1..38b749d9ae 100644
--- a/bootstrap/lib/compiler/ebin/beam_validator.beam
+++ b/bootstrap/lib/compiler/ebin/beam_validator.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_z.beam b/bootstrap/lib/compiler/ebin/beam_z.beam
index ad551bcc8c..ac156a37e9 100644
--- a/bootstrap/lib/compiler/ebin/beam_z.beam
+++ b/bootstrap/lib/compiler/ebin/beam_z.beam
diff --git a/bootstrap/lib/compiler/ebin/cerl.beam b/bootstrap/lib/compiler/ebin/cerl.beam
index 0f0670c9ae..758861af20 100644
--- a/bootstrap/lib/compiler/ebin/cerl.beam
+++ b/bootstrap/lib/compiler/ebin/cerl.beam
diff --git a/bootstrap/lib/compiler/ebin/cerl_inline.beam b/bootstrap/lib/compiler/ebin/cerl_inline.beam
index 2f7f220ebd..0e466ad38e 100644
--- a/bootstrap/lib/compiler/ebin/cerl_inline.beam
+++ b/bootstrap/lib/compiler/ebin/cerl_inline.beam
diff --git a/bootstrap/lib/compiler/ebin/cerl_sets.beam b/bootstrap/lib/compiler/ebin/cerl_sets.beam
new file mode 100644
index 0000000000..d16543cdbe
--- /dev/null
+++ b/bootstrap/lib/compiler/ebin/cerl_sets.beam
diff --git a/bootstrap/lib/compiler/ebin/cerl_trees.beam b/bootstrap/lib/compiler/ebin/cerl_trees.beam
index 1338631c23..fc1a7e04f8 100644
--- a/bootstrap/lib/compiler/ebin/cerl_trees.beam
+++ b/bootstrap/lib/compiler/ebin/cerl_trees.beam
diff --git a/bootstrap/lib/compiler/ebin/compile.beam b/bootstrap/lib/compiler/ebin/compile.beam
index eb682b953c..111f85acd2 100644
--- a/bootstrap/lib/compiler/ebin/compile.beam
+++ b/bootstrap/lib/compiler/ebin/compile.beam
diff --git a/bootstrap/lib/compiler/ebin/compiler.app b/bootstrap/lib/compiler/ebin/compiler.app
index ea1be86c83..814c2f0df5 100644
--- a/bootstrap/lib/compiler/ebin/compiler.app
+++ b/bootstrap/lib/compiler/ebin/compiler.app
@@ -18,7 +18,7 @@
 
 {application, compiler,
  [{description, "ERTS  CXC 138 10"},
-  {vsn, "5.0.3"},
+  {vsn, "6.0"},
   {modules, [
 	     beam_a,
 	     beam_asm,
@@ -45,6 +45,7 @@
 	     cerl,
 	     cerl_clauses,
 	     cerl_inline,
+             cerl_sets,
 	     cerl_trees,
 	     compile,
 	     core_scan,
@@ -56,6 +57,7 @@
 	     rec_env,
 	     sys_core_dsetel,
 	     sys_core_fold,
+	     sys_core_fold_lists,
 	     sys_core_inline,
 	     sys_pre_attributes,
 	     sys_pre_expand,
@@ -68,5 +70,5 @@
   {registered, []},
   {applications, [kernel, stdlib]},
   {env, []},
-  {runtime_dependencies, ["stdlib-2.0","kernel-3.0","hipe-3.10.3","erts-6.0",
-			  "crypto-3.3"]}]}.
+  {runtime_dependencies, ["stdlib-2.5","kernel-4.0","hipe-3.12","erts-7.0",
+			  "crypto-3.6"]}]}.
diff --git a/bootstrap/lib/compiler/ebin/compiler.appup b/bootstrap/lib/compiler/ebin/compiler.appup
index e73b9aa60c..8a9c1d649d 100644
--- a/bootstrap/lib/compiler/ebin/compiler.appup
+++ b/bootstrap/lib/compiler/ebin/compiler.appup
@@ -15,7 +15,7 @@
 %% under the License.
 %%
 %% %CopyrightEnd%
-{"5.0",
+{"5.0.4",
  [{<<".*">>,[{restart_application, compiler}]}],
  [{<<".*">>,[{restart_application, compiler}]}]
 }.
diff --git a/bootstrap/lib/compiler/ebin/core_lib.beam b/bootstrap/lib/compiler/ebin/core_lib.beam
index 54f43c6c10..ec87099635 100644
--- a/bootstrap/lib/compiler/ebin/core_lib.beam
+++ b/bootstrap/lib/compiler/ebin/core_lib.beam
diff --git a/bootstrap/lib/compiler/ebin/core_lint.beam b/bootstrap/lib/compiler/ebin/core_lint.beam
index e172ec6af7..b1cbbf030d 100644
--- a/bootstrap/lib/compiler/ebin/core_lint.beam
+++ b/bootstrap/lib/compiler/ebin/core_lint.beam
diff --git a/bootstrap/lib/compiler/ebin/core_parse.beam b/bootstrap/lib/compiler/ebin/core_parse.beam
index 121ef65275..025ac1591b 100644
--- a/bootstrap/lib/compiler/ebin/core_parse.beam
+++ b/bootstrap/lib/compiler/ebin/core_parse.beam
diff --git a/bootstrap/lib/compiler/ebin/core_pp.beam b/bootstrap/lib/compiler/ebin/core_pp.beam
index e6e60fb658..7ba89c698e 100644
--- a/bootstrap/lib/compiler/ebin/core_pp.beam
+++ b/bootstrap/lib/compiler/ebin/core_pp.beam
diff --git a/bootstrap/lib/compiler/ebin/core_scan.beam b/bootstrap/lib/compiler/ebin/core_scan.beam
index 73f588232a..c54edfc0e7 100644
--- a/bootstrap/lib/compiler/ebin/core_scan.beam
+++ b/bootstrap/lib/compiler/ebin/core_scan.beam
diff --git a/bootstrap/lib/compiler/ebin/erl_bifs.beam b/bootstrap/lib/compiler/ebin/erl_bifs.beam
index 27136581c1..d6c4dec85e 100644
--- a/bootstrap/lib/compiler/ebin/erl_bifs.beam
+++ b/bootstrap/lib/compiler/ebin/erl_bifs.beam
diff --git a/bootstrap/lib/compiler/ebin/rec_env.beam b/bootstrap/lib/compiler/ebin/rec_env.beam
index 4bd37b16c0..c49a2e23e9 100644
--- a/bootstrap/lib/compiler/ebin/rec_env.beam
+++ b/bootstrap/lib/compiler/ebin/rec_env.beam
diff --git a/bootstrap/lib/compiler/ebin/sys_core_dsetel.beam b/bootstrap/lib/compiler/ebin/sys_core_dsetel.beam
index 29dfdfb755..14c69eec6c 100644
--- a/bootstrap/lib/compiler/ebin/sys_core_dsetel.beam
+++ b/bootstrap/lib/compiler/ebin/sys_core_dsetel.beam
diff --git a/bootstrap/lib/compiler/ebin/sys_core_fold.beam b/bootstrap/lib/compiler/ebin/sys_core_fold.beam
index 64477ec574..1b5467a54b 100644
--- a/bootstrap/lib/compiler/ebin/sys_core_fold.beam
+++ b/bootstrap/lib/compiler/ebin/sys_core_fold.beam
diff --git a/bootstrap/lib/compiler/ebin/sys_core_fold_lists.beam b/bootstrap/lib/compiler/ebin/sys_core_fold_lists.beam
new file mode 100644
index 0000000000..58ae7c0393
--- /dev/null
+++ b/bootstrap/lib/compiler/ebin/sys_core_fold_lists.beam
diff --git a/bootstrap/lib/compiler/ebin/sys_core_inline.beam b/bootstrap/lib/compiler/ebin/sys_core_inline.beam
index 1e358ee0ea..4f44297bee 100644
--- a/bootstrap/lib/compiler/ebin/sys_core_inline.beam
+++ b/bootstrap/lib/compiler/ebin/sys_core_inline.beam
diff --git a/bootstrap/lib/compiler/ebin/sys_pre_attributes.beam b/bootstrap/lib/compiler/ebin/sys_pre_attributes.beam
index f7621bbc3f..a1c6466ccd 100644
--- a/bootstrap/lib/compiler/ebin/sys_pre_attributes.beam
+++ b/bootstrap/lib/compiler/ebin/sys_pre_attributes.beam
diff --git a/bootstrap/lib/compiler/ebin/sys_pre_expand.beam b/bootstrap/lib/compiler/ebin/sys_pre_expand.beam
index c0c537f623..6eba755081 100644
--- a/bootstrap/lib/compiler/ebin/sys_pre_expand.beam
+++ b/bootstrap/lib/compiler/ebin/sys_pre_expand.beam
diff --git a/bootstrap/lib/compiler/ebin/v3_codegen.beam b/bootstrap/lib/compiler/ebin/v3_codegen.beam
index 3670fd206c..e53f0fcd12 100644
--- a/bootstrap/lib/compiler/ebin/v3_codegen.beam
+++ b/bootstrap/lib/compiler/ebin/v3_codegen.beam
diff --git a/bootstrap/lib/compiler/ebin/v3_core.beam b/bootstrap/lib/compiler/ebin/v3_core.beam
index 851b5512c3..e4c5f51f77 100644
--- a/bootstrap/lib/compiler/ebin/v3_core.beam
+++ b/bootstrap/lib/compiler/ebin/v3_core.beam
diff --git a/bootstrap/lib/compiler/ebin/v3_kernel.beam b/bootstrap/lib/compiler/ebin/v3_kernel.beam
index 1e549a41c7..f5cdbb6e40 100644
--- a/bootstrap/lib/compiler/ebin/v3_kernel.beam
+++ b/bootstrap/lib/compiler/ebin/v3_kernel.beam
diff --git a/bootstrap/lib/compiler/ebin/v3_kernel_pp.beam b/bootstrap/lib/compiler/ebin/v3_kernel_pp.beam
index 1798a279b0..d54716bbee 100644
--- a/bootstrap/lib/compiler/ebin/v3_kernel_pp.beam
+++ b/bootstrap/lib/compiler/ebin/v3_kernel_pp.beam
diff --git a/bootstrap/lib/compiler/ebin/v3_life.beam b/bootstrap/lib/compiler/ebin/v3_life.beam
index 0eb0cb6caf..741a702e88 100644
--- a/bootstrap/lib/compiler/ebin/v3_life.beam
+++ b/bootstrap/lib/compiler/ebin/v3_life.beam
diff --git a/bootstrap/lib/kernel/ebin/application.beam b/bootstrap/lib/kernel/ebin/application.beam
index 6946d17545..d8e98c021b 100644
--- a/bootstrap/lib/kernel/ebin/application.beam
+++ b/bootstrap/lib/kernel/ebin/application.beam
diff --git a/bootstrap/lib/kernel/ebin/application_controller.beam b/bootstrap/lib/kernel/ebin/application_controller.beam
index 2a4525c27f..c4fa46e33e 100644
--- a/bootstrap/lib/kernel/ebin/application_controller.beam
+++ b/bootstrap/lib/kernel/ebin/application_controller.beam
diff --git a/bootstrap/lib/kernel/ebin/application_master.beam b/bootstrap/lib/kernel/ebin/application_master.beam
index 365bc7b53d..b81dfa81d3 100644
--- a/bootstrap/lib/kernel/ebin/application_master.beam
+++ b/bootstrap/lib/kernel/ebin/application_master.beam
diff --git a/bootstrap/lib/kernel/ebin/auth.beam b/bootstrap/lib/kernel/ebin/auth.beam
index 3cc607cb14..74dde4fd1c 100644
--- a/bootstrap/lib/kernel/ebin/auth.beam
+++ b/bootstrap/lib/kernel/ebin/auth.beam
diff --git a/bootstrap/lib/kernel/ebin/code.beam b/bootstrap/lib/kernel/ebin/code.beam
index 5428f2cf0c..55d123c6a2 100644
--- a/bootstrap/lib/kernel/ebin/code.beam
+++ b/bootstrap/lib/kernel/ebin/code.beam
diff --git a/bootstrap/lib/kernel/ebin/code_server.beam b/bootstrap/lib/kernel/ebin/code_server.beam
index 340c5feed9..aa75ae9bd1 100644
--- a/bootstrap/lib/kernel/ebin/code_server.beam
+++ b/bootstrap/lib/kernel/ebin/code_server.beam
diff --git a/bootstrap/lib/kernel/ebin/disk_log.beam b/bootstrap/lib/kernel/ebin/disk_log.beam
index 8a7d6a8388..287a8c0de8 100644
--- a/bootstrap/lib/kernel/ebin/disk_log.beam
+++ b/bootstrap/lib/kernel/ebin/disk_log.beam
diff --git a/bootstrap/lib/kernel/ebin/disk_log_1.beam b/bootstrap/lib/kernel/ebin/disk_log_1.beam
index 5193dfa53d..55a9365f05 100644
--- a/bootstrap/lib/kernel/ebin/disk_log_1.beam
+++ b/bootstrap/lib/kernel/ebin/disk_log_1.beam
diff --git a/bootstrap/lib/kernel/ebin/dist_ac.beam b/bootstrap/lib/kernel/ebin/dist_ac.beam
index 9d3f7548b6..ea948cfe88 100644
--- a/bootstrap/lib/kernel/ebin/dist_ac.beam
+++ b/bootstrap/lib/kernel/ebin/dist_ac.beam
diff --git a/bootstrap/lib/kernel/ebin/dist_util.beam b/bootstrap/lib/kernel/ebin/dist_util.beam
index ea09695075..c92373c68e 100644
--- a/bootstrap/lib/kernel/ebin/dist_util.beam
+++ b/bootstrap/lib/kernel/ebin/dist_util.beam
diff --git a/bootstrap/lib/kernel/ebin/erl_boot_server.beam b/bootstrap/lib/kernel/ebin/erl_boot_server.beam
index 6e56a1061d..91899fe231 100644
--- a/bootstrap/lib/kernel/ebin/erl_boot_server.beam
+++ b/bootstrap/lib/kernel/ebin/erl_boot_server.beam
diff --git a/bootstrap/lib/kernel/ebin/erl_epmd.beam b/bootstrap/lib/kernel/ebin/erl_epmd.beam
index bf171450e9..92d6387af3 100644
--- a/bootstrap/lib/kernel/ebin/erl_epmd.beam
+++ b/bootstrap/lib/kernel/ebin/erl_epmd.beam
diff --git a/bootstrap/lib/kernel/ebin/erts_debug.beam b/bootstrap/lib/kernel/ebin/erts_debug.beam
index 17320342bc..bd73ff6c5c 100644
--- a/bootstrap/lib/kernel/ebin/erts_debug.beam
+++ b/bootstrap/lib/kernel/ebin/erts_debug.beam
diff --git a/bootstrap/lib/kernel/ebin/file.beam b/bootstrap/lib/kernel/ebin/file.beam
index 5305c3854c..32a3a27993 100644
--- a/bootstrap/lib/kernel/ebin/file.beam
+++ b/bootstrap/lib/kernel/ebin/file.beam
diff --git a/bootstrap/lib/kernel/ebin/file_io_server.beam b/bootstrap/lib/kernel/ebin/file_io_server.beam
index dfaa1b07f0..be820676ed 100644
--- a/bootstrap/lib/kernel/ebin/file_io_server.beam
+++ b/bootstrap/lib/kernel/ebin/file_io_server.beam
diff --git a/bootstrap/lib/kernel/ebin/global.beam b/bootstrap/lib/kernel/ebin/global.beam
index d25be3994c..158fbd1c93 100644
--- a/bootstrap/lib/kernel/ebin/global.beam
+++ b/bootstrap/lib/kernel/ebin/global.beam
diff --git a/bootstrap/lib/kernel/ebin/global_group.beam b/bootstrap/lib/kernel/ebin/global_group.beam
index d11f60015a..85306ef123 100644
--- a/bootstrap/lib/kernel/ebin/global_group.beam
+++ b/bootstrap/lib/kernel/ebin/global_group.beam
diff --git a/bootstrap/lib/kernel/ebin/group.beam b/bootstrap/lib/kernel/ebin/group.beam
index 412b8e0007..0f72880f49 100644
--- a/bootstrap/lib/kernel/ebin/group.beam
+++ b/bootstrap/lib/kernel/ebin/group.beam
diff --git a/bootstrap/lib/kernel/ebin/hipe_unified_loader.beam b/bootstrap/lib/kernel/ebin/hipe_unified_loader.beam
index 6df9ac9564..fc12b6b194 100644
--- a/bootstrap/lib/kernel/ebin/hipe_unified_loader.beam
+++ b/bootstrap/lib/kernel/ebin/hipe_unified_loader.beam
diff --git a/bootstrap/lib/kernel/ebin/inet.beam b/bootstrap/lib/kernel/ebin/inet.beam
index 4fff1c069d..a76806293f 100644
--- a/bootstrap/lib/kernel/ebin/inet.beam
+++ b/bootstrap/lib/kernel/ebin/inet.beam
diff --git a/bootstrap/lib/kernel/ebin/inet6_tcp.beam b/bootstrap/lib/kernel/ebin/inet6_tcp.beam
index 036b0495c8..d080a1200b 100644
--- a/bootstrap/lib/kernel/ebin/inet6_tcp.beam
+++ b/bootstrap/lib/kernel/ebin/inet6_tcp.beam
diff --git a/bootstrap/lib/kernel/ebin/inet6_tcp_dist.beam b/bootstrap/lib/kernel/ebin/inet6_tcp_dist.beam
index 83305c1826..3f98206013 100644
--- a/bootstrap/lib/kernel/ebin/inet6_tcp_dist.beam
+++ b/bootstrap/lib/kernel/ebin/inet6_tcp_dist.beam
diff --git a/bootstrap/lib/kernel/ebin/inet_config.beam b/bootstrap/lib/kernel/ebin/inet_config.beam
index e858ac20f1..f31fb16742 100644
--- a/bootstrap/lib/kernel/ebin/inet_config.beam
+++ b/bootstrap/lib/kernel/ebin/inet_config.beam
diff --git a/bootstrap/lib/kernel/ebin/inet_db.beam b/bootstrap/lib/kernel/ebin/inet_db.beam
index 45e7d9e0d0..8c7c6ba218 100644
--- a/bootstrap/lib/kernel/ebin/inet_db.beam
+++ b/bootstrap/lib/kernel/ebin/inet_db.beam
diff --git a/bootstrap/lib/kernel/ebin/inet_dns.beam b/bootstrap/lib/kernel/ebin/inet_dns.beam
index 9fd86024e0..0c5b6c73e1 100644
--- a/bootstrap/lib/kernel/ebin/inet_dns.beam
+++ b/bootstrap/lib/kernel/ebin/inet_dns.beam
diff --git a/bootstrap/lib/kernel/ebin/inet_parse.beam b/bootstrap/lib/kernel/ebin/inet_parse.beam
index 90ccd8b440..294afcea30 100644
--- a/bootstrap/lib/kernel/ebin/inet_parse.beam
+++ b/bootstrap/lib/kernel/ebin/inet_parse.beam
diff --git a/bootstrap/lib/kernel/ebin/inet_res.beam b/bootstrap/lib/kernel/ebin/inet_res.beam
index 2636552e92..f35242f49a 100644
--- a/bootstrap/lib/kernel/ebin/inet_res.beam
+++ b/bootstrap/lib/kernel/ebin/inet_res.beam
diff --git a/bootstrap/lib/kernel/ebin/inet_sctp.beam b/bootstrap/lib/kernel/ebin/inet_sctp.beam
index 503cbc11e2..19506c14e9 100644
--- a/bootstrap/lib/kernel/ebin/inet_sctp.beam
+++ b/bootstrap/lib/kernel/ebin/inet_sctp.beam
diff --git a/bootstrap/lib/kernel/ebin/inet_tcp.beam b/bootstrap/lib/kernel/ebin/inet_tcp.beam
index d854abd830..60e0d9f569 100644
--- a/bootstrap/lib/kernel/ebin/inet_tcp.beam
+++ b/bootstrap/lib/kernel/ebin/inet_tcp.beam
diff --git a/bootstrap/lib/kernel/ebin/inet_tcp_dist.beam b/bootstrap/lib/kernel/ebin/inet_tcp_dist.beam
index 2e54f1e1f4..a3635e5dde 100644
--- a/bootstrap/lib/kernel/ebin/inet_tcp_dist.beam
+++ b/bootstrap/lib/kernel/ebin/inet_tcp_dist.beam
diff --git a/bootstrap/lib/kernel/ebin/kernel.app b/bootstrap/lib/kernel/ebin/kernel.app
index 3388f28e91..54a61e6ef6 100644
--- a/bootstrap/lib/kernel/ebin/kernel.app
+++ b/bootstrap/lib/kernel/ebin/kernel.app
@@ -21,7 +21,7 @@
 {application, kernel,
  [
   {description, "ERTS  CXC 138 10"},
-  {vsn, "3.1"},
+  {vsn, "4.0"},
   {modules, [application,
 	     application_controller,
 	     application_master,
@@ -115,6 +115,6 @@
   {applications, []},
   {env, [{error_logger, tty}]},
   {mod, {kernel, []}},
-  {runtime_dependencies, ["erts-6.1.2", "stdlib-2.0", "sasl-2.4"]}
+  {runtime_dependencies, ["erts-7.0", "stdlib-2.5", "sasl-2.4"]}
  ]
 }.
diff --git a/bootstrap/lib/kernel/ebin/kernel.appup b/bootstrap/lib/kernel/ebin/kernel.appup
index b6fade4222..a0c5e763c1 100644
--- a/bootstrap/lib/kernel/ebin/kernel.appup
+++ b/bootstrap/lib/kernel/ebin/kernel.appup
@@ -1,7 +1,7 @@
 %% -*- erlang -*-
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1999-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -15,11 +15,9 @@
 %% under the License.
 %%
 %% %CopyrightEnd%
-{"3.1",
+{"4.0",
  %% Up from - max one major revision back
- [{<<"3\\.0(\\.[0-9]+)*">>,[restart_new_emulator]}, %% R17
-  {<<"2\\.16(\\.[0-9]+)*">>,[restart_new_emulator]}],%% R16
+ [{<<"3\\.[0-2](\\.[0-9]+)*">>,[restart_new_emulator]}], % OTP-17
  %% Down to - max one major revision back
- [{<<"3\\.0(\\.[0-9]+)*">>,[restart_new_emulator]}, %% R17
-  {<<"2\\.16(\\.[0-9]+)*">>,[restart_new_emulator]}] %% R16
+ [{<<"3\\.[0-2](\\.[0-9]+)*">>,[restart_new_emulator]}]  % OTP-17
 }.
diff --git a/bootstrap/lib/kernel/ebin/kernel.beam b/bootstrap/lib/kernel/ebin/kernel.beam
index c938b218e1..caeda89fa5 100644
--- a/bootstrap/lib/kernel/ebin/kernel.beam
+++ b/bootstrap/lib/kernel/ebin/kernel.beam
diff --git a/bootstrap/lib/kernel/ebin/kernel_config.beam b/bootstrap/lib/kernel/ebin/kernel_config.beam
index c35da2c73d..5a4649a054 100644
--- a/bootstrap/lib/kernel/ebin/kernel_config.beam
+++ b/bootstrap/lib/kernel/ebin/kernel_config.beam
diff --git a/bootstrap/lib/kernel/ebin/net_kernel.beam b/bootstrap/lib/kernel/ebin/net_kernel.beam
index 33193008c7..9a0bfa2ba4 100644
--- a/bootstrap/lib/kernel/ebin/net_kernel.beam
+++ b/bootstrap/lib/kernel/ebin/net_kernel.beam
diff --git a/bootstrap/lib/kernel/ebin/os.beam b/bootstrap/lib/kernel/ebin/os.beam
index b1b92ca36b..9eaf7dfe5d 100644
--- a/bootstrap/lib/kernel/ebin/os.beam
+++ b/bootstrap/lib/kernel/ebin/os.beam
diff --git a/bootstrap/lib/kernel/ebin/pg2.beam b/bootstrap/lib/kernel/ebin/pg2.beam
index c26b5a4ffc..944f6a27a4 100644
--- a/bootstrap/lib/kernel/ebin/pg2.beam
+++ b/bootstrap/lib/kernel/ebin/pg2.beam
diff --git a/bootstrap/lib/kernel/ebin/ram_file.beam b/bootstrap/lib/kernel/ebin/ram_file.beam
index 4d6df15730..a8b23f5490 100644
--- a/bootstrap/lib/kernel/ebin/ram_file.beam
+++ b/bootstrap/lib/kernel/ebin/ram_file.beam
diff --git a/bootstrap/lib/kernel/ebin/user.beam b/bootstrap/lib/kernel/ebin/user.beam
index 0e06c78fce..d69339866a 100644
--- a/bootstrap/lib/kernel/ebin/user.beam
+++ b/bootstrap/lib/kernel/ebin/user.beam
diff --git a/bootstrap/lib/kernel/ebin/user_drv.beam b/bootstrap/lib/kernel/ebin/user_drv.beam
index 4a2cd01b0d..726a130b55 100644
--- a/bootstrap/lib/kernel/ebin/user_drv.beam
+++ b/bootstrap/lib/kernel/ebin/user_drv.beam
diff --git a/bootstrap/lib/kernel/ebin/wrap_log_reader.beam b/bootstrap/lib/kernel/ebin/wrap_log_reader.beam
index f35187c269..68578800a0 100644
--- a/bootstrap/lib/kernel/ebin/wrap_log_reader.beam
+++ b/bootstrap/lib/kernel/ebin/wrap_log_reader.beam
diff --git a/bootstrap/lib/stdlib/ebin/array.beam b/bootstrap/lib/stdlib/ebin/array.beam
index 76cb41da49..4ad9c7cd04 100644
--- a/bootstrap/lib/stdlib/ebin/array.beam
+++ b/bootstrap/lib/stdlib/ebin/array.beam
diff --git a/bootstrap/lib/stdlib/ebin/beam_lib.beam b/bootstrap/lib/stdlib/ebin/beam_lib.beam
index b22233171b..abf4949465 100644
--- a/bootstrap/lib/stdlib/ebin/beam_lib.beam
+++ b/bootstrap/lib/stdlib/ebin/beam_lib.beam
diff --git a/bootstrap/lib/stdlib/ebin/binary.beam b/bootstrap/lib/stdlib/ebin/binary.beam
index 14d6ba7976..666544c492 100644
--- a/bootstrap/lib/stdlib/ebin/binary.beam
+++ b/bootstrap/lib/stdlib/ebin/binary.beam
diff --git a/bootstrap/lib/stdlib/ebin/c.beam b/bootstrap/lib/stdlib/ebin/c.beam
index b184c21d94..0e07dc1531 100644
--- a/bootstrap/lib/stdlib/ebin/c.beam
+++ b/bootstrap/lib/stdlib/ebin/c.beam
diff --git a/bootstrap/lib/stdlib/ebin/calendar.beam b/bootstrap/lib/stdlib/ebin/calendar.beam
index 19e0443dd2..383d66e1a8 100644
--- a/bootstrap/lib/stdlib/ebin/calendar.beam
+++ b/bootstrap/lib/stdlib/ebin/calendar.beam
diff --git a/bootstrap/lib/stdlib/ebin/dets.beam b/bootstrap/lib/stdlib/ebin/dets.beam
index 46adf4ee3a..100996bf85 100644
--- a/bootstrap/lib/stdlib/ebin/dets.beam
+++ b/bootstrap/lib/stdlib/ebin/dets.beam
diff --git a/bootstrap/lib/stdlib/ebin/dets_server.beam b/bootstrap/lib/stdlib/ebin/dets_server.beam
index 7ce673e23c..46c6769dfe 100644
--- a/bootstrap/lib/stdlib/ebin/dets_server.beam
+++ b/bootstrap/lib/stdlib/ebin/dets_server.beam
diff --git a/bootstrap/lib/stdlib/ebin/dets_utils.beam b/bootstrap/lib/stdlib/ebin/dets_utils.beam
index cb4da358d6..f2d1d86a60 100644
--- a/bootstrap/lib/stdlib/ebin/dets_utils.beam
+++ b/bootstrap/lib/stdlib/ebin/dets_utils.beam
diff --git a/bootstrap/lib/stdlib/ebin/dets_v8.beam b/bootstrap/lib/stdlib/ebin/dets_v8.beam
index eac0a308b7..eca5a85114 100644
--- a/bootstrap/lib/stdlib/ebin/dets_v8.beam
+++ b/bootstrap/lib/stdlib/ebin/dets_v8.beam
diff --git a/bootstrap/lib/stdlib/ebin/dets_v9.beam b/bootstrap/lib/stdlib/ebin/dets_v9.beam
index c85adabcae..711ca0b9f0 100644
--- a/bootstrap/lib/stdlib/ebin/dets_v9.beam
+++ b/bootstrap/lib/stdlib/ebin/dets_v9.beam
diff --git a/bootstrap/lib/stdlib/ebin/dict.beam b/bootstrap/lib/stdlib/ebin/dict.beam
index e39c79bd5a..6ba808d6af 100644
--- a/bootstrap/lib/stdlib/ebin/dict.beam
+++ b/bootstrap/lib/stdlib/ebin/dict.beam
diff --git a/bootstrap/lib/stdlib/ebin/digraph_utils.beam b/bootstrap/lib/stdlib/ebin/digraph_utils.beam
index 64783f4e1d..458c6d2895 100644
--- a/bootstrap/lib/stdlib/ebin/digraph_utils.beam
+++ b/bootstrap/lib/stdlib/ebin/digraph_utils.beam
diff --git a/bootstrap/lib/stdlib/ebin/edlin.beam b/bootstrap/lib/stdlib/ebin/edlin.beam
index f006e86851..4d052a0c50 100644
--- a/bootstrap/lib/stdlib/ebin/edlin.beam
+++ b/bootstrap/lib/stdlib/ebin/edlin.beam
diff --git a/bootstrap/lib/stdlib/ebin/edlin_expand.beam b/bootstrap/lib/stdlib/ebin/edlin_expand.beam
index e182f67bd8..3d9846bdcf 100644
--- a/bootstrap/lib/stdlib/ebin/edlin_expand.beam
+++ b/bootstrap/lib/stdlib/ebin/edlin_expand.beam
diff --git a/bootstrap/lib/stdlib/ebin/epp.beam b/bootstrap/lib/stdlib/ebin/epp.beam
index 83469557cd..00cf6f2a5c 100644
--- a/bootstrap/lib/stdlib/ebin/epp.beam
+++ b/bootstrap/lib/stdlib/ebin/epp.beam
diff --git a/bootstrap/lib/stdlib/ebin/erl_anno.beam b/bootstrap/lib/stdlib/ebin/erl_anno.beam
new file mode 100644
index 0000000000..4807dac5f9
--- /dev/null
+++ b/bootstrap/lib/stdlib/ebin/erl_anno.beam
diff --git a/bootstrap/lib/stdlib/ebin/erl_eval.beam b/bootstrap/lib/stdlib/ebin/erl_eval.beam
index 95454c885a..2354a065ca 100644
--- a/bootstrap/lib/stdlib/ebin/erl_eval.beam
+++ b/bootstrap/lib/stdlib/ebin/erl_eval.beam
diff --git a/bootstrap/lib/stdlib/ebin/erl_expand_records.beam b/bootstrap/lib/stdlib/ebin/erl_expand_records.beam
index b2104b1d3f..db2d0e6b85 100644
--- a/bootstrap/lib/stdlib/ebin/erl_expand_records.beam
+++ b/bootstrap/lib/stdlib/ebin/erl_expand_records.beam
diff --git a/bootstrap/lib/stdlib/ebin/erl_internal.beam b/bootstrap/lib/stdlib/ebin/erl_internal.beam
index b851ca484e..d3e41be66b 100644
--- a/bootstrap/lib/stdlib/ebin/erl_internal.beam
+++ b/bootstrap/lib/stdlib/ebin/erl_internal.beam
diff --git a/bootstrap/lib/stdlib/ebin/erl_lint.beam b/bootstrap/lib/stdlib/ebin/erl_lint.beam
index 8ae35899d0..16cacefb7c 100644
--- a/bootstrap/lib/stdlib/ebin/erl_lint.beam
+++ b/bootstrap/lib/stdlib/ebin/erl_lint.beam
diff --git a/bootstrap/lib/stdlib/ebin/erl_parse.beam b/bootstrap/lib/stdlib/ebin/erl_parse.beam
index 4c27146a81..adf1cfb43e 100644
--- a/bootstrap/lib/stdlib/ebin/erl_parse.beam
+++ b/bootstrap/lib/stdlib/ebin/erl_parse.beam
diff --git a/bootstrap/lib/stdlib/ebin/erl_pp.beam b/bootstrap/lib/stdlib/ebin/erl_pp.beam
index 4549b309ca..f38ba5fa71 100644
--- a/bootstrap/lib/stdlib/ebin/erl_pp.beam
+++ b/bootstrap/lib/stdlib/ebin/erl_pp.beam
diff --git a/bootstrap/lib/stdlib/ebin/erl_scan.beam b/bootstrap/lib/stdlib/ebin/erl_scan.beam
index b2b97bda8a..c29200f2e0 100644
--- a/bootstrap/lib/stdlib/ebin/erl_scan.beam
+++ b/bootstrap/lib/stdlib/ebin/erl_scan.beam
diff --git a/bootstrap/lib/stdlib/ebin/erl_tar.beam b/bootstrap/lib/stdlib/ebin/erl_tar.beam
index 24c65996b3..e525b3738b 100644
--- a/bootstrap/lib/stdlib/ebin/erl_tar.beam
+++ b/bootstrap/lib/stdlib/ebin/erl_tar.beam
diff --git a/bootstrap/lib/stdlib/ebin/error_logger_file_h.beam b/bootstrap/lib/stdlib/ebin/error_logger_file_h.beam
index 673ee6e8b2..5c1bc6045f 100644
--- a/bootstrap/lib/stdlib/ebin/error_logger_file_h.beam
+++ b/bootstrap/lib/stdlib/ebin/error_logger_file_h.beam
diff --git a/bootstrap/lib/stdlib/ebin/error_logger_tty_h.beam b/bootstrap/lib/stdlib/ebin/error_logger_tty_h.beam
index 87d58cf378..9711f57e43 100644
--- a/bootstrap/lib/stdlib/ebin/error_logger_tty_h.beam
+++ b/bootstrap/lib/stdlib/ebin/error_logger_tty_h.beam
diff --git a/bootstrap/lib/stdlib/ebin/escript.beam b/bootstrap/lib/stdlib/ebin/escript.beam
index 401b41a2f5..e923cecea8 100644
--- a/bootstrap/lib/stdlib/ebin/escript.beam
+++ b/bootstrap/lib/stdlib/ebin/escript.beam
diff --git a/bootstrap/lib/stdlib/ebin/ets.beam b/bootstrap/lib/stdlib/ebin/ets.beam
index 8d024aaa99..7d30fc9fc1 100644
--- a/bootstrap/lib/stdlib/ebin/ets.beam
+++ b/bootstrap/lib/stdlib/ebin/ets.beam
diff --git a/bootstrap/lib/stdlib/ebin/file_sorter.beam b/bootstrap/lib/stdlib/ebin/file_sorter.beam
index b5844d5ddb..a2a82fb77d 100644
--- a/bootstrap/lib/stdlib/ebin/file_sorter.beam
+++ b/bootstrap/lib/stdlib/ebin/file_sorter.beam
diff --git a/bootstrap/lib/stdlib/ebin/filelib.beam b/bootstrap/lib/stdlib/ebin/filelib.beam
index ab3600c2f2..5941f9189f 100644
--- a/bootstrap/lib/stdlib/ebin/filelib.beam
+++ b/bootstrap/lib/stdlib/ebin/filelib.beam
diff --git a/bootstrap/lib/stdlib/ebin/filename.beam b/bootstrap/lib/stdlib/ebin/filename.beam
index 4c64d477aa..e4b462f5ff 100644
--- a/bootstrap/lib/stdlib/ebin/filename.beam
+++ b/bootstrap/lib/stdlib/ebin/filename.beam
diff --git a/bootstrap/lib/stdlib/ebin/gb_sets.beam b/bootstrap/lib/stdlib/ebin/gb_sets.beam
index feadc1d1ed..71da2376ba 100644
--- a/bootstrap/lib/stdlib/ebin/gb_sets.beam
+++ b/bootstrap/lib/stdlib/ebin/gb_sets.beam
diff --git a/bootstrap/lib/stdlib/ebin/gb_trees.beam b/bootstrap/lib/stdlib/ebin/gb_trees.beam
index 879b8cdf76..db59d5af19 100644
--- a/bootstrap/lib/stdlib/ebin/gb_trees.beam
+++ b/bootstrap/lib/stdlib/ebin/gb_trees.beam
diff --git a/bootstrap/lib/stdlib/ebin/gen.beam b/bootstrap/lib/stdlib/ebin/gen.beam
index 6f15e461f6..ccaabd8087 100644
--- a/bootstrap/lib/stdlib/ebin/gen.beam
+++ b/bootstrap/lib/stdlib/ebin/gen.beam
diff --git a/bootstrap/lib/stdlib/ebin/gen_event.beam b/bootstrap/lib/stdlib/ebin/gen_event.beam
index e7aaf99eb0..bc3e71f6a7 100644
--- a/bootstrap/lib/stdlib/ebin/gen_event.beam
+++ b/bootstrap/lib/stdlib/ebin/gen_event.beam
diff --git a/bootstrap/lib/stdlib/ebin/gen_fsm.beam b/bootstrap/lib/stdlib/ebin/gen_fsm.beam
index 1eee773838..268b8798c8 100644
--- a/bootstrap/lib/stdlib/ebin/gen_fsm.beam
+++ b/bootstrap/lib/stdlib/ebin/gen_fsm.beam
diff --git a/bootstrap/lib/stdlib/ebin/gen_server.beam b/bootstrap/lib/stdlib/ebin/gen_server.beam
index 833287bbe2..1e1e530eea 100644
--- a/bootstrap/lib/stdlib/ebin/gen_server.beam
+++ b/bootstrap/lib/stdlib/ebin/gen_server.beam
diff --git a/bootstrap/lib/stdlib/ebin/io_lib.beam b/bootstrap/lib/stdlib/ebin/io_lib.beam
index ad77021190..c95a88c0f0 100644
--- a/bootstrap/lib/stdlib/ebin/io_lib.beam
+++ b/bootstrap/lib/stdlib/ebin/io_lib.beam
diff --git a/bootstrap/lib/stdlib/ebin/io_lib_format.beam b/bootstrap/lib/stdlib/ebin/io_lib_format.beam
index fcfce54d0e..032e15eeb1 100644
--- a/bootstrap/lib/stdlib/ebin/io_lib_format.beam
+++ b/bootstrap/lib/stdlib/ebin/io_lib_format.beam
diff --git a/bootstrap/lib/stdlib/ebin/io_lib_fread.beam b/bootstrap/lib/stdlib/ebin/io_lib_fread.beam
index 8c45cf484c..b4af88d5b5 100644
--- a/bootstrap/lib/stdlib/ebin/io_lib_fread.beam
+++ b/bootstrap/lib/stdlib/ebin/io_lib_fread.beam
diff --git a/bootstrap/lib/stdlib/ebin/io_lib_pretty.beam b/bootstrap/lib/stdlib/ebin/io_lib_pretty.beam
index 9504baab1b..eed02e5fa5 100644
--- a/bootstrap/lib/stdlib/ebin/io_lib_pretty.beam
+++ b/bootstrap/lib/stdlib/ebin/io_lib_pretty.beam
diff --git a/bootstrap/lib/stdlib/ebin/lib.beam b/bootstrap/lib/stdlib/ebin/lib.beam
index c9086e1796..1cc92d1b8d 100644
--- a/bootstrap/lib/stdlib/ebin/lib.beam
+++ b/bootstrap/lib/stdlib/ebin/lib.beam
diff --git a/bootstrap/lib/stdlib/ebin/lists.beam b/bootstrap/lib/stdlib/ebin/lists.beam
index 96eb8f3a86..9db37e21d4 100644
--- a/bootstrap/lib/stdlib/ebin/lists.beam
+++ b/bootstrap/lib/stdlib/ebin/lists.beam
diff --git a/bootstrap/lib/stdlib/ebin/maps.beam b/bootstrap/lib/stdlib/ebin/maps.beam
index 8473da95d7..d1aa8bb9dd 100644
--- a/bootstrap/lib/stdlib/ebin/maps.beam
+++ b/bootstrap/lib/stdlib/ebin/maps.beam
diff --git a/bootstrap/lib/stdlib/ebin/math.beam b/bootstrap/lib/stdlib/ebin/math.beam
index c2e8dfb874..b4596ee515 100644
--- a/bootstrap/lib/stdlib/ebin/math.beam
+++ b/bootstrap/lib/stdlib/ebin/math.beam
diff --git a/bootstrap/lib/stdlib/ebin/ms_transform.beam b/bootstrap/lib/stdlib/ebin/ms_transform.beam
index 55eec2691c..cc8503fdb3 100644
--- a/bootstrap/lib/stdlib/ebin/ms_transform.beam
+++ b/bootstrap/lib/stdlib/ebin/ms_transform.beam
diff --git a/bootstrap/lib/stdlib/ebin/orddict.beam b/bootstrap/lib/stdlib/ebin/orddict.beam
index 5fea6d0622..665941a17c 100644
--- a/bootstrap/lib/stdlib/ebin/orddict.beam
+++ b/bootstrap/lib/stdlib/ebin/orddict.beam
diff --git a/bootstrap/lib/stdlib/ebin/otp_internal.beam b/bootstrap/lib/stdlib/ebin/otp_internal.beam
index 7c2d60d845..52b13fb974 100644
--- a/bootstrap/lib/stdlib/ebin/otp_internal.beam
+++ b/bootstrap/lib/stdlib/ebin/otp_internal.beam
diff --git a/bootstrap/lib/stdlib/ebin/pg.beam b/bootstrap/lib/stdlib/ebin/pg.beam
deleted file mode 100644
index 31f30461d8..0000000000
--- a/bootstrap/lib/stdlib/ebin/pg.beam
+++ /dev/null
diff --git a/bootstrap/lib/stdlib/ebin/proc_lib.beam b/bootstrap/lib/stdlib/ebin/proc_lib.beam
index 368d3e39a0..cb6a8d6049 100644
--- a/bootstrap/lib/stdlib/ebin/proc_lib.beam
+++ b/bootstrap/lib/stdlib/ebin/proc_lib.beam
diff --git a/bootstrap/lib/stdlib/ebin/qlc.beam b/bootstrap/lib/stdlib/ebin/qlc.beam
index ec3f0d174e..652604afc0 100644
--- a/bootstrap/lib/stdlib/ebin/qlc.beam
+++ b/bootstrap/lib/stdlib/ebin/qlc.beam
diff --git a/bootstrap/lib/stdlib/ebin/qlc_pt.beam b/bootstrap/lib/stdlib/ebin/qlc_pt.beam
index 6184f0c295..0e59d769a4 100644
--- a/bootstrap/lib/stdlib/ebin/qlc_pt.beam
+++ b/bootstrap/lib/stdlib/ebin/qlc_pt.beam
diff --git a/bootstrap/lib/stdlib/ebin/queue.beam b/bootstrap/lib/stdlib/ebin/queue.beam
index b7eab3f8d1..4365c5518d 100644
--- a/bootstrap/lib/stdlib/ebin/queue.beam
+++ b/bootstrap/lib/stdlib/ebin/queue.beam
diff --git a/bootstrap/lib/stdlib/ebin/rand.beam b/bootstrap/lib/stdlib/ebin/rand.beam
new file mode 100644
index 0000000000..b6e0d20bd7
--- /dev/null
+++ b/bootstrap/lib/stdlib/ebin/rand.beam
diff --git a/bootstrap/lib/stdlib/ebin/random.beam b/bootstrap/lib/stdlib/ebin/random.beam
index 4a95240dfe..f576b310df 100644
--- a/bootstrap/lib/stdlib/ebin/random.beam
+++ b/bootstrap/lib/stdlib/ebin/random.beam
diff --git a/bootstrap/lib/stdlib/ebin/re.beam b/bootstrap/lib/stdlib/ebin/re.beam
index 74b369bb0c..9e140def2c 100644
--- a/bootstrap/lib/stdlib/ebin/re.beam
+++ b/bootstrap/lib/stdlib/ebin/re.beam
diff --git a/bootstrap/lib/stdlib/ebin/shell.beam b/bootstrap/lib/stdlib/ebin/shell.beam
index 8c4734f208..3b2d0eb0fa 100644
--- a/bootstrap/lib/stdlib/ebin/shell.beam
+++ b/bootstrap/lib/stdlib/ebin/shell.beam
diff --git a/bootstrap/lib/stdlib/ebin/shell_default.beam b/bootstrap/lib/stdlib/ebin/shell_default.beam
index fa64e33080..f295c9f116 100644
--- a/bootstrap/lib/stdlib/ebin/shell_default.beam
+++ b/bootstrap/lib/stdlib/ebin/shell_default.beam
diff --git a/bootstrap/lib/stdlib/ebin/sofs.beam b/bootstrap/lib/stdlib/ebin/sofs.beam
index 90d82c23c0..976483833f 100644
--- a/bootstrap/lib/stdlib/ebin/sofs.beam
+++ b/bootstrap/lib/stdlib/ebin/sofs.beam
diff --git a/bootstrap/lib/stdlib/ebin/stdlib.app b/bootstrap/lib/stdlib/ebin/stdlib.app
index e92798b83d..6e830917ad 100644
--- a/bootstrap/lib/stdlib/ebin/stdlib.app
+++ b/bootstrap/lib/stdlib/ebin/stdlib.app
@@ -2,7 +2,7 @@
 %% 
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -19,7 +19,7 @@
 %%
 {application, stdlib,
  [{description, "ERTS  CXC 138 10"},
-  {vsn, "2.3"},
+  {vsn, "2.5"},
   {modules, [array,
 	     base64,
 	     beam_lib,
@@ -39,6 +39,7 @@
 	     edlin_expand,
 	     epp,
 	     eval_bits,
+             erl_anno,
 	     erl_bits,
 	     erl_compile,
 	     erl_eval,
@@ -77,13 +78,13 @@
 	     orddict,
 	     ordsets,
 	     otp_internal,
-	     pg,
 	     pool,
 	     proc_lib,
 	     proplists,
              qlc,
              qlc_pt,
 	     queue,
+	     rand,
 	     random,
 	     re,
 	     sets,
@@ -103,7 +104,7 @@
                dets]},
   {applications, [kernel]},
   {env, []},
-  {runtime_dependencies, ["sasl-2.4","kernel-3.0.2","erts-6.2","crypto-3.3",
+  {runtime_dependencies, ["sasl-2.4","kernel-4.0","erts-7.0","crypto-3.3",
 			  "compiler-5.0"]}
 ]}.
 
diff --git a/bootstrap/lib/stdlib/ebin/stdlib.appup b/bootstrap/lib/stdlib/ebin/stdlib.appup
index fb2e12f03c..a1038a43b6 100644
--- a/bootstrap/lib/stdlib/ebin/stdlib.appup
+++ b/bootstrap/lib/stdlib/ebin/stdlib.appup
@@ -1,7 +1,7 @@
 %% -*- erlang -*-
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1999-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -15,13 +15,9 @@
 %% under the License.
 %%
 %% %CopyrightEnd%
-{"2.3",
+{"2.5",
  %% Up from - max one major revision back
- [{<<"2\\.[1-2](\\.[0-9]+)*">>,[restart_new_emulator]}, %% 17.1-17.3
-  {<<"2\\.0(\\.[0-9]+)*">>,[restart_new_emulator]}, %% 17.0
-  {<<"1\\.19(\\.[0-9]+)*">>,[restart_new_emulator]}],%% R16
+ [{<<"2\\.[0-4](\\.[0-9]+)*">>,[restart_new_emulator]}], %% 17.0-17.5
  %% Down to - max one major revision back
- [{<<"2\\.[1-2](\\.[0-9]+)*">>,[restart_new_emulator]}, %% 17.1-17.3
-  {<<"2\\.0(\\.[0-9]+)*">>,[restart_new_emulator]}, %% 17.0
-  {<<"1\\.19(\\.[0-9]+)*">>,[restart_new_emulator]}] %% R16
+ [{<<"2\\.[0-4](\\.[0-9]+)*">>,[restart_new_emulator]}] %% 17.0-17.5
 }.
diff --git a/bootstrap/lib/stdlib/ebin/string.beam b/bootstrap/lib/stdlib/ebin/string.beam
index 79e579f0aa..e8ad12aa2d 100644
--- a/bootstrap/lib/stdlib/ebin/string.beam
+++ b/bootstrap/lib/stdlib/ebin/string.beam
diff --git a/bootstrap/lib/stdlib/ebin/supervisor.beam b/bootstrap/lib/stdlib/ebin/supervisor.beam
index 40d9b28a18..6dd01bf004 100644
--- a/bootstrap/lib/stdlib/ebin/supervisor.beam
+++ b/bootstrap/lib/stdlib/ebin/supervisor.beam
diff --git a/bootstrap/lib/stdlib/ebin/supervisor_bridge.beam b/bootstrap/lib/stdlib/ebin/supervisor_bridge.beam
index 54d7385738..1ebc561ee5 100644
--- a/bootstrap/lib/stdlib/ebin/supervisor_bridge.beam
+++ b/bootstrap/lib/stdlib/ebin/supervisor_bridge.beam
diff --git a/bootstrap/lib/stdlib/ebin/sys.beam b/bootstrap/lib/stdlib/ebin/sys.beam
index 1413b822f2..a569f8003f 100644
--- a/bootstrap/lib/stdlib/ebin/sys.beam
+++ b/bootstrap/lib/stdlib/ebin/sys.beam
diff --git a/bootstrap/lib/stdlib/ebin/timer.beam b/bootstrap/lib/stdlib/ebin/timer.beam
index 106d75c18a..9887f37c70 100644
--- a/bootstrap/lib/stdlib/ebin/timer.beam
+++ b/bootstrap/lib/stdlib/ebin/timer.beam
diff --git a/bootstrap/lib/stdlib/ebin/unicode.beam b/bootstrap/lib/stdlib/ebin/unicode.beam
index 76342ef108..16557d5631 100644
--- a/bootstrap/lib/stdlib/ebin/unicode.beam
+++ b/bootstrap/lib/stdlib/ebin/unicode.beam
diff --git a/bootstrap/lib/stdlib/ebin/win32reg.beam b/bootstrap/lib/stdlib/ebin/win32reg.beam
index 5d023ecb93..b37ead63ba 100644
--- a/bootstrap/lib/stdlib/ebin/win32reg.beam
+++ b/bootstrap/lib/stdlib/ebin/win32reg.beam
diff --git a/bootstrap/lib/stdlib/ebin/zip.beam b/bootstrap/lib/stdlib/ebin/zip.beam
index 465a8b95a7..e80b6ae0cd 100644
--- a/bootstrap/lib/stdlib/ebin/zip.beam
+++ b/bootstrap/lib/stdlib/ebin/zip.beam
diff --git a/erts/aclocal.m4 b/erts/aclocal.m4
index 5735cdea5c..352a0ce43c 100644
--- a/erts/aclocal.m4
+++ b/erts/aclocal.m4
@@ -1,7 +1,7 @@
 dnl
 dnl %CopyrightBegin%
 dnl
-dnl Copyright Ericsson AB 1998-2013. All Rights Reserved.
+dnl Copyright Ericsson AB 1998-2015. All Rights Reserved.
 dnl
 dnl The contents of this file are subject to the Erlang Public License,
 dnl Version 1.1, (the "License"); you may not use this file except in
@@ -60,7 +60,6 @@ AC_ARG_VAR(erl_xcomp_isysroot, [Absolute cross system root include path (only us
 dnl Cross compilation variables
 AC_ARG_VAR(erl_xcomp_bigendian, [big endian system: yes|no (only used when cross compiling)])
 AC_ARG_VAR(erl_xcomp_double_middle_endian, [double-middle-endian system: yes|no (only used when cross compiling)])
-AC_ARG_VAR(erl_xcomp_linux_clock_gettime_correction, [clock_gettime() can be used for time correction: yes|no (only used when cross compiling)])
 AC_ARG_VAR(erl_xcomp_linux_nptl, [have Native POSIX Thread Library: yes|no (only used when cross compiling)])
 AC_ARG_VAR(erl_xcomp_linux_usable_sigusrx, [SIGUSR1 and SIGUSR2 can be used: yes|no (only used when cross compiling)])
 AC_ARG_VAR(erl_xcomp_linux_usable_sigaltstack, [have working sigaltstack(): yes|no (only used when cross compiling)])
@@ -559,7 +558,7 @@ dnl
 
 AC_DEFUN(LM_SYS_MULTICAST,
 [AC_CACHE_CHECK([for multicast support], ac_cv_sys_multicast_support,
-[AC_EGREP_CPP(yes,
+[AC_EGREP_CPP(^yes$,
 [#include <sys/types.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
@@ -724,6 +723,244 @@ esac
 ])# AC_C_DOUBLE_MIDDLE_ENDIAN
 
 
+AC_DEFUN(ERL_MONOTONIC_CLOCK,
+[
+  default_resolution_clock_gettime_monotonic="CLOCK_HIGHRES CLOCK_BOOTTIME CLOCK_MONOTONIC"
+  low_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_COARSE CLOCK_MONOTONIC_FAST"
+  high_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_PRECISE"
+
+  case "$1" in
+    high_resolution)
+	check_msg="high resolution "
+	prefer_resolution_clock_gettime_monotonic="$high_resolution_clock_gettime_monotonic"
+	;;
+    low_resolution)
+	check_msg="low resolution "
+	prefer_resolution_clock_gettime_monotonic="$low_resolution_clock_gettime_monotonic"
+	;;
+    custom_resolution)
+	check_msg="custom resolution "
+	prefer_resolution_clock_gettime_monotonic="$2"
+	;;
+    *)
+	check_msg=""
+	prefer_resolution_clock_gettime_monotonic=
+	;;
+  esac
+
+  AC_CACHE_CHECK([for clock_gettime(CLOCK_MONOTONIC_RAW, _)], erl_cv_clock_gettime_monotonic_raw,
+  [
+       AC_TRY_COMPILE([
+#include <time.h>
+		      ],
+		      [
+    struct timespec ts;
+    long long result;
+    clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
+    result = ((long long) ts.tv_sec) * 1000000000LL + 
+    ((long long) ts.tv_nsec);
+		      ],
+		      erl_cv_clock_gettime_monotonic_raw=yes,
+		      erl_cv_clock_gettime_monotonic_raw=no)
+  ])
+
+  AC_CACHE_CHECK([for clock_gettime() with ${check_msg}monotonic clock type], erl_cv_clock_gettime_monotonic_$1,
+  [
+     for clock_type in $prefer_resolution_clock_gettime_monotonic $default_resolution_clock_gettime_monotonic $high_resolution_clock_gettime_monotonic $low_resolution_clock_gettime_monotonic; do
+       AC_TRY_COMPILE([
+#include <time.h>
+		      ],
+		      [
+    struct timespec ts;
+    long long result;
+    clock_gettime($clock_type,&ts);
+    result = ((long long) ts.tv_sec) * 1000000000LL + 
+    ((long long) ts.tv_nsec);
+		      ],
+		      erl_cv_clock_gettime_monotonic_$1=$clock_type,
+		      erl_cv_clock_gettime_monotonic_$1=no)
+       test $erl_cv_clock_gettime_monotonic_$1 = no || break
+     done
+  ])
+
+  AC_CHECK_FUNCS([clock_getres clock_get_attributes gethrtime])
+  
+  AC_CACHE_CHECK([for mach clock_get_time() with monotonic clock type], erl_cv_mach_clock_get_time_monotonic,
+  [
+     AC_TRY_COMPILE([
+#include <mach/clock.h>
+#include <mach/mach.h>
+			],
+	 		[
+    kern_return_t res;
+    clock_serv_t clk_srv;
+    mach_timespec_t time_spec;
+
+    host_get_clock_service(mach_host_self(), SYSTEM_CLOCK, &clk_srv);
+    res = clock_get_time(clk_srv, &time_spec);
+    mach_port_deallocate(mach_task_self(), clk_srv);
+    			],
+    			erl_cv_mach_clock_get_time_monotonic=yes,
+			erl_cv_mach_clock_get_time_monotonic=no)
+  ])
+  
+  erl_corrected_monotonic_clock=no
+  case $erl_cv_clock_gettime_monotonic_$1-$ac_cv_func_gethrtime-$erl_cv_mach_clock_get_time_monotonic-$host_os in
+    *-*-*-win32)
+      erl_monotonic_clock_func=WindowsAPI
+      ;;
+    CLOCK_*-*-*-linux*)
+      case $erl_cv_clock_gettime_monotonic_$1-$erl_cv_clock_gettime_monotonic_raw in
+        CLOCK_BOOTTIME-yes|CLOCK_MONOTONIC-yes)
+	  erl_corrected_monotonic_clock=yes
+	  ;;
+	*)
+	  # We don't trust CLOCK_MONOTONIC to be NTP
+	  # adjusted on linux systems that do not have
+	  # CLOCK_MONOTONIC_RAW (although it seems to
+	  # be...)
+	  ;;
+      esac
+      erl_monotonic_clock_func=clock_gettime
+      ;;
+    no-no-no-linux*)
+      erl_monotonic_clock_func=times
+      ;;
+    CLOCK_*-*-*-*)
+      erl_monotonic_clock_func=clock_gettime
+      ;;
+    no-yes-*-*)
+      erl_monotonic_clock_func=gethrtime
+      ;;
+    no-no-yes-*)
+      erl_monotonic_clock_func=mach_clock_get_time
+      ;;
+    no-no-no-*)
+      erl_monotonic_clock_func=none
+      ;;
+  esac
+
+  erl_monotonic_clock_low_resolution=no
+  erl_monotonic_clock_lib=
+  erl_monotonic_clock_id=
+  case $erl_monotonic_clock_func in
+    clock_gettime)
+      erl_monotonic_clock_id=$erl_cv_clock_gettime_monotonic_$1
+      for low_res_id in $low_resolution_clock_gettime_monotonic; do
+      	  if test $erl_monotonic_clock_id = $low_res_id; then
+	    erl_monotonic_clock_low_resolution=yes
+	    break
+	  fi
+      done
+      AC_CHECK_LIB(rt, clock_gettime, [erl_monotonic_clock_lib="-lrt"])
+      ;;
+    mach_clock_get_time)
+      erl_monotonic_clock_id=SYSTEM_CLOCK
+      ;;
+    times)
+      erl_monotonic_clock_low_resolution=yes
+      ;;
+    *)
+      ;;
+  esac
+ 
+])
+
+AC_DEFUN(ERL_WALL_CLOCK,
+[
+  default_resolution_clock_gettime_wall="CLOCK_REALTIME"
+  low_resolution_clock_gettime_wall="CLOCK_REALTIME_COARSE CLOCK_REALTIME_FAST"
+  high_resolution_clock_gettime_wall="CLOCK_REALTIME_PRECISE"
+
+  case "$1" in
+    high_resolution)
+	check_msg="high resolution "
+	prefer_resolution_clock_gettime_wall="$high_resolution_clock_gettime_wall"
+	;;
+    low_resolution)
+	check_msg="low resolution "
+	prefer_resolution_clock_gettime_wall="$low_resolution_clock_gettime_wall"
+	;;
+    custom_resolution)
+	check_msg="custom resolution "
+	prefer_resolution_clock_gettime_wall="$2"
+	;;
+    *)
+	check_msg=""
+	prefer_resolution_clock_gettime_wall=
+	;;
+  esac
+
+  AC_CACHE_CHECK([for clock_gettime() with ${check_msg}wall clock type], erl_cv_clock_gettime_wall_$1,
+  [
+     for clock_type in $prefer_resolution_clock_gettime_wall $default_resolution_clock_gettime_wall $high_resolution_clock_gettime_wall $low_resolution_clock_gettime_wall; do
+       AC_TRY_COMPILE([
+#include <time.h>
+		      ],
+		      [
+    struct timespec ts;
+    long long result;
+    clock_gettime($clock_type,&ts);
+    result = ((long long) ts.tv_sec) * 1000000000LL + 
+    ((long long) ts.tv_nsec);
+		      ],
+		      erl_cv_clock_gettime_wall_$1=$clock_type,
+		      erl_cv_clock_gettime_wall_$1=no)
+       test $erl_cv_clock_gettime_wall_$1 = no || break
+     done
+  ])
+
+  AC_CHECK_FUNCS([clock_getres clock_get_attributes gettimeofday])
+  
+  AC_CACHE_CHECK([for mach clock_get_time() with wall clock type], erl_cv_mach_clock_get_time_wall,
+  [
+     AC_TRY_COMPILE([
+#include <mach/clock.h>
+#include <mach/mach.h>
+			],
+	 		[
+    kern_return_t res;
+    clock_serv_t clk_srv;
+    mach_timespec_t time_spec;
+
+    host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &clk_srv);
+    res = clock_get_time(clk_srv, &time_spec);
+    mach_port_deallocate(mach_task_self(), clk_srv);
+    			],
+    			erl_cv_mach_clock_get_time_wall=yes,
+			erl_cv_mach_clock_get_time_wall=no)
+  ])
+
+  erl_wall_clock_low_resolution=no
+  erl_wall_clock_id=
+  case $erl_cv_clock_gettime_wall_$1-$erl_cv_mach_clock_get_time_wall-$ac_cv_func_gettimeofday-$host_os in
+    *-*-*-win32)
+      erl_wall_clock_func=WindowsAPI
+      erl_wall_clock_low_resolution=yes
+      ;;
+    no-yes-*-*)
+      erl_wall_clock_func=mach_clock_get_time
+      erl_wall_clock_id=CALENDAR_CLOCK
+      ;;
+    CLOCK_*-*-*-*)
+      erl_wall_clock_func=clock_gettime
+      erl_wall_clock_id=$erl_cv_clock_gettime_wall_$1
+      for low_res_id in $low_resolution_clock_gettime_wall; do
+      	  if test $erl_wall_clock_id = $low_res_id; then
+	    erl_wall_clock_low_resolution=yes
+	    break
+	  fi
+      done
+      ;;
+    no-no-yes-*)
+      erl_wall_clock_func=gettimeofday
+      ;;
+    *)
+      erl_wall_clock_func=none
+      ;;
+  esac
+])
+
 dnl ----------------------------------------------------------------------
 dnl
 dnl LM_CHECK_THR_LIB
@@ -908,24 +1145,226 @@ AC_SUBST(ERTS_INTERNAL_X_LIBS)
 
 ])
 
-AC_DEFUN(ETHR_CHK_SYNC_OP,
+AC_DEFUN(ETHR_CHK_GCC_ATOMIC_OP__,
 [
-    AC_MSG_CHECKING([for $3-bit $1()])
-    case "$2" in
-	"1") sync_call="$1(&var);";;
-	"2") sync_call="$1(&var, ($4) 0);";;
-	"3") sync_call="$1(&var, ($4) 0, ($4) 0);";;
+    # $1 - atomic_op
+
+    for atomic_bit_size in 32 64 128; do
+	case $atomic_bit_size in
+	    32) gcc_atomic_type="$gcc_atomic_type32";;
+	    64) gcc_atomic_type="$gcc_atomic_type64";;
+	    128) gcc_atomic_type="$gcc_atomic_type128";;
+	esac
+	gcc_atomic_lockfree="int x[[(2*__atomic_always_lock_free(sizeof($gcc_atomic_type), 0))-1]]"
+	case $1 in
+	    __sync_add_and_fetch | __sync_fetch_and_and | __sync_fetch_and_or)
+		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = $1(&var, ($gcc_atomic_type) 0);"
+		;;
+	    __sync_val_compare_and_swap)
+		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = $1(&var, ($gcc_atomic_type) 0, ($gcc_atomic_type) 0);"
+		;;
+	    __atomic_store_n)
+		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $1(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); $1(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
+		;;
+	    __atomic_load_n)
+		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = $1(&var, __ATOMIC_RELAXED); res = $1(&var, __ATOMIC_ACQUIRE);"
+		;;
+	    __atomic_add_fetch| __atomic_fetch_and | __atomic_fetch_or)
+		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = $1(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); res = $1(&var, ($gcc_atomic_type) 0, __ATOMIC_ACQUIRE); res = $1(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
+		;;
+	    __atomic_compare_exchange_n)
+		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type val; int res = $1(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED); res = $1(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);"
+		;;
+	    *)
+		AC_MSG_ERROR([Internal error: missing implementation for $1])
+		;;
+	esac
+	eval atomic${atomic_bit_size}_call=\"$atomic_call\"
+    done
+    
+    AC_CACHE_CHECK([for 32-bit $1()], ethr_cv_32bit_$1,
+		   [
+		       ethr_cv_32bit_$1=no
+		       AC_TRY_LINK([], [$atomic32_call], [ethr_cv_32bit_$1=yes])
+		   ])
+    AC_CACHE_CHECK([for 64-bit $1()], ethr_cv_64bit_$1,
+		   [
+		       ethr_cv_64bit_$1=no
+		       AC_TRY_LINK([], [$atomic64_call], [ethr_cv_64bit_$1=yes])
+		   ])
+    AC_CACHE_CHECK([for 128-bit $1()], ethr_cv_128bit_$1,
+		   [
+		       ethr_cv_128bit_$1=no
+		       AC_TRY_LINK([], [$atomic128_call], [ethr_cv_128bit_$1=yes])
+		   ])
+
+	case $ethr_cv_128bit_$1-$ethr_cv_64bit_$1-$ethr_cv_32bit_$1 in
+	    no-no-no)
+		have_atomic_ops=0;;
+	    no-no-yes)
+		have_atomic_ops=4;;
+	    no-yes-no)
+		have_atomic_ops=8;;
+	    no-yes-yes)
+		have_atomic_ops=12;;
+	    yes-no-no)
+		have_atomic_ops=16;;
+	    yes-no-yes)
+		have_atomic_ops=20;;
+	    yes-yes-no)
+		have_atomic_ops=24;;
+	    yes-yes-yes)
+		have_atomic_ops=28;;
+	esac
+	AC_DEFINE_UNQUOTED([ETHR_HAVE_$1], [$have_atomic_ops], [Define as a bitmask corresponding to the word sizes that $1() can handle on your system])
+])
+
+AC_DEFUN(ETHR_CHK_IF_NOOP,
+[
+   ethr_test_filename="chk_if_$1$3_noop_config1test.$$"
+   cat > "${ethr_test_filename}.c" <<EOF
+int
+my_test(void)
+{
+    $1$2;
+    return 0;
+}
+EOF
+   $CC -O3 $ETHR_DEFS -c "${ethr_test_filename}.c" -o "${ethr_test_filename}1.o"
+   cat > "${ethr_test_filename}.c" <<EOF
+int
+my_test(void)
+{
+    ;
+    return 0;
+}
+EOF
+   $CC -O3 $ETHR_DEFS -c "${ethr_test_filename}.c" -o "${ethr_test_filename}2.o"
+   if diff "${ethr_test_filename}1.o" "${ethr_test_filename}2.o" >/dev/null 2>&1; then
+      ethr_$1$3_noop=yes
+   else
+      ethr_$1$3_noop=no
+   fi
+   rm -f "${ethr_test_filename}.c" "${ethr_test_filename}1.o"  "${ethr_test_filename}2.o" 
+])
+
+AC_DEFUN(ETHR_CHK_GCC_ATOMIC_OPS,
+[
+    AC_CHECK_SIZEOF(short)
+    AC_CHECK_SIZEOF(int)
+    AC_CHECK_SIZEOF(long)
+    AC_CHECK_SIZEOF(long long)
+    AC_CHECK_SIZEOF(__int128_t)
+
+    if test "$ac_cv_sizeof_short" = "4"; then
+	gcc_atomic_type32="short"
+    elif test "$ac_cv_sizeof_int" = "4"; then
+	gcc_atomic_type32="int"
+    elif test "$ac_cv_sizeof_long" = "4"; then
+	gcc_atomic_type32="long"
+    else
+	AC_MSG_ERROR([No 32-bit type found])
+    fi
+
+    if test "$ac_cv_sizeof_int" = "8"; then
+	gcc_atomic_type64="int"
+    elif test "$ac_cv_sizeof_long" = "8"; then
+	gcc_atomic_type64="long"
+    elif test "$ac_cv_sizeof_long_long" = "8"; then
+	gcc_atomic_type64="long long"
+    else
+	AC_MSG_ERROR([No 64-bit type found])
+    fi
+
+    if test "$ac_cv_sizeof___int128_t" = "16"; then
+	gcc_atomic_type128="__int128_t"
+    else
+	gcc_atomic_type128="#error "	
+    fi
+    AC_CACHE_CHECK([for a working __sync_synchronize()], ethr_cv___sync_synchronize,
+		   [
+		       ethr_cv___sync_synchronize=no
+		       AC_TRY_LINK([],
+				   [ __sync_synchronize(); ],
+				   [ethr_cv___sync_synchronize=yes])
+		       if test $ethr_cv___sync_synchronize = yes; then
+			   #
+			   # Old gcc versions on at least x86 have a buggy
+			   # __sync_synchronize() which does not emit a
+			   # memory barrier. We try to detect this by
+			   # compiling to assembly with and without
+			   # __sync_synchronize() and compare the results.
+			   #
+			   ETHR_CHK_IF_NOOP(__sync_synchronize, [()], [])
+			   if test $ethr___sync_synchronize_noop = yes; then
+			      # Got a buggy implementation of
+			      # __sync_synchronize...
+			      ethr_cv___sync_synchronize="no; buggy implementation"
+			   fi
+		       fi
+		   ])
+
+    if test "$ethr_cv___sync_synchronize" = "yes"; then
+	have_sync_synchronize_value="~0"
+    else
+	have_sync_synchronize_value="0"
+    fi
+    AC_DEFINE_UNQUOTED([ETHR_HAVE___sync_synchronize], [$have_sync_synchronize_value], [Define as a bitmask corresponding to the word sizes that __sync_synchronize() can handle on your system])
+
+    ETHR_CHK_GCC_ATOMIC_OP__(__sync_add_and_fetch)
+    ETHR_CHK_GCC_ATOMIC_OP__(__sync_fetch_and_and)
+    ETHR_CHK_GCC_ATOMIC_OP__(__sync_fetch_and_or)
+    ETHR_CHK_GCC_ATOMIC_OP__(__sync_val_compare_and_swap)
+
+    ETHR_CHK_GCC_ATOMIC_OP__(__atomic_store_n)
+    ETHR_CHK_GCC_ATOMIC_OP__(__atomic_load_n)
+    ETHR_CHK_GCC_ATOMIC_OP__(__atomic_add_fetch)
+    ETHR_CHK_GCC_ATOMIC_OP__(__atomic_fetch_and)
+    ETHR_CHK_GCC_ATOMIC_OP__(__atomic_fetch_or)
+    ETHR_CHK_GCC_ATOMIC_OP__(__atomic_compare_exchange_n)
+
+    ethr_have_gcc_native_atomics=no
+    ethr_arm_dbm_instr_val=0
+    case "$GCC-$host_cpu" in
+	yes-arm*)
+	    AC_CACHE_CHECK([for ARM DMB instruction], ethr_cv_arm_dbm_instr,
+			   [
+				ethr_cv_arm_dbm_instr=no
+				AC_TRY_LINK([],
+					    [
+						__asm__ __volatile__("dmb sy" : : : "memory");
+						__asm__ __volatile__("dmb st" : : : "memory");
+					    ],
+					    [ethr_cv_arm_dbm_instr=yes])
+			   ])
+	    if test $ethr_cv_arm_dbm_instr = yes; then
+		ethr_arm_dbm_instr_val=1
+		test $ethr_cv_64bit___atomic_compare_exchange_n = yes &&
+		    ethr_have_gcc_native_atomics=yes
+	    fi;;
+	*)
+	    ;;
     esac
-    have_sync_op=no
-    AC_TRY_LINK([],
-	[
-	    $4 res;
-	    volatile $4 var;
-	    res = $sync_call
-	],
-	[have_sync_op=yes])
-    test $have_sync_op = yes && $5
-    AC_MSG_RESULT([$have_sync_op])
+    AC_DEFINE_UNQUOTED([ETHR_HAVE_GCC_ASM_ARM_DMB_INSTRUCTION], [$ethr_arm_dbm_instr_val], [Define as a boolean indicating whether you have a gcc compatible compiler capable of generating the ARM DMB instruction, and are compiling for an ARM processor with ARM DMB instruction support, or not])
+    test $ethr_cv_32bit___sync_val_compare_and_swap = yes &&
+    	ethr_have_gcc_native_atomics=yes
+    test $ethr_cv_64bit___sync_val_compare_and_swap = yes &&
+    	ethr_have_gcc_native_atomics=yes
+    if test "$ethr_cv___sync_synchronize" = "yes"; then
+    	test $ethr_cv_64bit___atomic_compare_exchange_n = yes &&
+    	    ethr_have_gcc_native_atomics=yes
+    	test $ethr_cv_32bit___atomic_compare_exchange_n = yes &&
+    	    ethr_have_gcc_native_atomics=yes
+    fi
+    ethr_have_gcc_atomic_builtins=0
+    if test $ethr_have_gcc_native_atomics = yes; then
+       ethr_native_atomic_implementation=gcc_sync
+       test $ethr_cv_32bit___atomic_compare_exchange_n = yes && ethr_have_gcc_atomic_builtins=1
+       test $ethr_cv_64bit___atomic_compare_exchange_n = yes && ethr_have_gcc_atomic_builtins=1
+       test $ethr_have_gcc_atomic_builtins = 1 && ethr_native_atomic_implementation=gcc_atomic_sync
+    fi
+    AC_DEFINE_UNQUOTED([ETHR_HAVE_GCC___ATOMIC_BUILTINS], [$ethr_have_gcc_atomic_builtins], [Define as a boolean indicating whether you have a gcc __atomic builtins or not])
+    test $ethr_have_gcc_native_atomics = yes && ethr_have_native_atomics=yes
 ])
 
 AC_DEFUN(ETHR_CHK_INTERLOCKED,
@@ -1005,6 +1444,16 @@ AC_ARG_ENABLE(prefer-gcc-native-ethr-impls,
 test $enable_prefer_gcc_native_ethr_impls = yes &&
   AC_DEFINE(ETHR_PREFER_GCC_NATIVE_IMPLS, 1, [Define if you prefer gcc native ethread implementations])
 
+AC_ARG_ENABLE(trust-gcc-atomic-builtins-memory-barriers,
+	      AS_HELP_STRING([--enable-trust-gcc-atomic-builtins-memory-barriers],
+			     [trust gcc atomic builtins memory barriers]),
+[ case "$enableval" in
+    yes) trust_gcc_atomic_builtins_mbs=1 ;;
+    *) trust_gcc_atomic_builtins_mbs=0 ;;
+  esac ], trust_gcc_atomic_builtins_mbs=0)
+
+AC_DEFINE_UNQUOTED(ETHR_TRUST_GCC_ATOMIC_BUILTINS_MEMORY_BARRIERS, [$trust_gcc_atomic_builtins_mbs], [Define as a boolean indicating whether you trust gcc's __atomic_* builtins memory barrier implementations, or not])
+
 AC_ARG_WITH(libatomic_ops,
 	    AS_HELP_STRING([--with-libatomic_ops=PATH],
 			   [specify and prefer usage of libatomic_ops in the ethread library]))
@@ -1016,12 +1465,33 @@ AC_ARG_WITH(with_sparc_memory_order,
 LM_CHECK_THR_LIB
 ERL_INTERNAL_LIBS
 
+ERL_MONOTONIC_CLOCK(high_resolution)
+
+case $erl_monotonic_clock_func in
+  clock_gettime)
+    AC_DEFINE(ETHR_HAVE_CLOCK_GETTIME_MONOTONIC, [1], [Define if you have a clock_gettime() with a monotonic clock])
+    ;;
+  mach_clock_get_time)
+    AC_DEFINE(ETHR_HAVE_MACH_CLOCK_GET_TIME, [1], [Define if you have a mach clock_get_time() with a monotonic clock])
+    ;;
+  gethrtime)
+    AC_DEFINE(ETHR_HAVE_GETHRTIME, [1], [Define if you have a monotonic gethrtime()])
+    ;;
+  *)
+    ;;
+esac
+
+if test "x$erl_monotonic_clock_id" != "x"; then
+    AC_DEFINE_UNQUOTED(ETHR_MONOTONIC_CLOCK_ID, [$erl_monotonic_clock_id], [Define to the monotonic clock id to use])
+fi
+
+ethr_native_atomic_implementation=none
 ethr_have_native_atomics=no
 ethr_have_native_spinlock=no
 ETHR_THR_LIB_BASE="$THR_LIB_NAME"
 ETHR_THR_LIB_BASE_TYPE="$THR_LIB_TYPE"
 ETHR_DEFS="$THR_DEFS"
-ETHR_X_LIBS="$THR_LIBS $ERTS_INTERNAL_X_LIBS"
+ETHR_X_LIBS="$THR_LIBS $ERTS_INTERNAL_X_LIBS $erl_monotonic_clock_lib"
 ETHR_LIBS=
 ETHR_LIB_NAME=
 
@@ -1100,7 +1570,10 @@ case "$THR_LIB_NAME" in
 
 	    ETHR_CHK_INTERLOCKED([_InterlockedCompareExchange128], [4], [__int64], AC_DEFINE_UNQUOTED(ETHR_HAVE__INTERLOCKEDCOMPAREEXCHANGE128, 1, [Define if you have _InterlockedCompareExchange128()]))
 	fi
-	test "$ethr_have_native_atomics" = "yes" && ethr_have_native_spinlock=yes
+	if test "$ethr_have_native_atomics" = "yes"; then
+	   ethr_native_atomic_implementation=windows
+	   ethr_have_native_spinlock=yes
+	fi
 	;;
 
     pthread|ose_threads)
@@ -1329,6 +1802,50 @@ case "$THR_LIB_NAME" in
 			AC_DEFINE(ETHR_HAVE_PTHREAD_ATTR_SETGUARDSIZE, 1, \
 [Define if you have the pthread_attr_setguardsize function.]))
 
+	if test "x$erl_monotonic_clock_id" != "x"; then
+	  AC_MSG_CHECKING(whether pthread_cond_timedwait() can use the monotonic clock $erl_monotonic_clock_id for timeout)
+	  pthread_cond_timedwait_monotonic=no
+	  AC_TRY_LINK([
+			#if defined(ETHR_NEED_NPTL_PTHREAD_H)
+			#  include <nptl/pthread.h>
+			#elif defined(ETHR_HAVE_MIT_PTHREAD_H)
+			#  include <pthread/mit/pthread.h>
+			#elif defined(ETHR_HAVE_PTHREAD_H)
+			#  include <pthread.h>
+			#endif
+			#ifdef ETHR_TIME_WITH_SYS_TIME
+			#  include <time.h>
+			#  include <sys/time.h>
+			#else
+			#  ifdef ETHR_HAVE_SYS_TIME_H
+			#    include <sys/time.h>
+			#  else
+			#    include <time.h>
+			#  endif
+			#endif
+			#if defined(ETHR_HAVE_MACH_CLOCK_GET_TIME)
+			#  include <mach/clock.h>
+			#  include <mach/mach.h>
+			#endif
+			], 
+			[
+			int res;
+			pthread_condattr_t attr;
+			pthread_cond_t cond;
+			struct timespec cond_timeout;
+			pthread_mutex_t mutex;
+			res = pthread_condattr_init(&attr);
+			res = pthread_condattr_setclock(&attr, ETHR_MONOTONIC_CLOCK_ID);
+			res = pthread_cond_init(&cond, &attr);
+			res = pthread_cond_timedwait(&cond, &mutex, &cond_timeout);
+			],
+			[pthread_cond_timedwait_monotonic=yes])
+	  AC_MSG_RESULT([$pthread_cond_timedwait_monotonic])
+	  if test $pthread_cond_timedwait_monotonic = yes; then
+	    AC_DEFINE(ETHR_HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC, [1], [Define if pthread_cond_timedwait() can be used with a monotonic clock])
+	  fi
+	fi
+
 	linux_futex=no
 	AC_MSG_CHECKING([for Linux futexes])
 	AC_TRY_LINK([
@@ -1349,56 +1866,62 @@ case "$THR_LIB_NAME" in
 	AC_MSG_RESULT([$linux_futex])
 	test $linux_futex = yes && AC_DEFINE(ETHR_HAVE_LINUX_FUTEX, 1, [Define if you have a linux futex implementation.])
 
-	fi
-
-	AC_CHECK_SIZEOF(int)
-	AC_CHECK_SIZEOF(long)
-	AC_CHECK_SIZEOF(long long)
-	AC_CHECK_SIZEOF(__int128_t)
-
-	if test "$ac_cv_sizeof_int" = "4"; then
-	    int32="int"
-	elif test "$ac_cv_sizeof_long" = "4"; then
-	    int32="long"
-	elif test "$ac_cv_sizeof_long_long" = "4"; then
-	    int32="long long"
-	else
-	    AC_MSG_ERROR([No 32-bit type found])
-	fi
+	pthread_setname=no
+	AC_MSG_CHECKING([for pthread_setname_np])
+	old_CFLAGS=$CFLAGS
+	CFLAGS="$CFLAGS -Werror"
+	AC_TRY_LINK([#define __USE_GNU
+                     #include <pthread.h>],
+                    [pthread_setname_np(pthread_self(), "name");],
+                    pthread_setname=linux)
+	AC_TRY_LINK([#define __USE_GNU
+                     #include <pthread.h>],
+                    [pthread_set_name_np(pthread_self(), "name");],
+                    pthread_setname=bsd)
+	AC_TRY_LINK([#define _DARWIN_C_SOURCE
+                     #include <pthread.h>],
+                    [pthread_setname_np("name");],
+                    pthread_setname=darwin)
+        AC_MSG_RESULT([$pthread_setname])
+        case $pthread_setname in
+             linux) AC_DEFINE(ETHR_HAVE_PTHREAD_SETNAME_NP_2, 1,
+                          [Define if you have linux style pthread_setname_np]);;
+             bsd) AC_DEFINE(ETHR_HAVE_PTHREAD_SET_NAME_NP_2, 1,
+                          [Define if you have bsd style pthread_set_name_np]);;
+             darwin) AC_DEFINE(ETHR_HAVE_PTHREAD_SETNAME_NP_1, 1,
+                          [Define if you have darwin style pthread_setname_np]);;
+             *) ;;
+	esac
 
-	if test "$ac_cv_sizeof_int" = "8"; then
-	    int64="int"
-	elif test "$ac_cv_sizeof_long" = "8"; then
-	    int64="long"
-	elif test "$ac_cv_sizeof_long_long" = "8"; then
-	    int64="long long"
-	else
-	    AC_MSG_ERROR([No 64-bit type found])
-	fi
+	pthread_getname=no
+	AC_MSG_CHECKING([for pthread_getname_np])
+	AC_TRY_LINK([#define __USE_GNU
+                     #define _DARWIN_C_SOURCE
+                     #include <pthread.h>],
+                    [char buff[256]; pthread_getname_np(pthread_self(), buff, 256);],
+                    pthread_getname=normal)
+	AC_TRY_LINK([#define __USE_GNU
+                     #define _DARWIN_C_SOURCE
+                     #include <pthread.h>],
+                    [char buff[256]; pthread_getname_np(pthread_self(), buff);],
+                    pthread_getname=ibm)
+        AC_MSG_RESULT([$pthread_getname])
+        case $pthread_getname in
+             linux) AC_DEFINE(ETHR_HAVE_PTHREAD_GETNAME_NP_3, 1,
+                          [Define if you have linux style pthread_getname_np]);;
+             ibm) AC_DEFINE(ETHR_HAVE_PTHREAD_GETNAME_NP_2, 1,
+                          [Define if you have ibm style pthread_getname_np]);;
+             *) ;;
+	esac
+	CFLAGS=$old_CFLAGS
 
-	int128=no
-	if test "$ac_cv_sizeof___int128_t" = "16"; then
-	    int128="__int128_t"
-	fi
+        fi ## test "x$THR_LIB_NAME" = "xpthread"
 
 	if test "X$disable_native_ethr_impls" = "Xyes"; then
 	    ethr_have_native_atomics=no
 	else
-	    ETHR_CHK_SYNC_OP([__sync_val_compare_and_swap], [3], [32], [$int32], AC_DEFINE(ETHR_HAVE___SYNC_VAL_COMPARE_AND_SWAP32, 1, [Define if you have __sync_val_compare_and_swap() for 32-bit integers]))
-	    test "$have_sync_op" = "yes" && ethr_have_native_atomics=yes
-	    ETHR_CHK_SYNC_OP([__sync_add_and_fetch], [2], [32], [$int32], AC_DEFINE(ETHR_HAVE___SYNC_ADD_AND_FETCH32, 1, [Define if you have __sync_add_and_fetch() for 32-bit integers]))
-	    ETHR_CHK_SYNC_OP([__sync_fetch_and_and], [2], [32], [$int32], AC_DEFINE(ETHR_HAVE___SYNC_FETCH_AND_AND32, 1, [Define if you have __sync_fetch_and_and() for 32-bit integers]))
-	    ETHR_CHK_SYNC_OP([__sync_fetch_and_or], [2], [32], [$int32], AC_DEFINE(ETHR_HAVE___SYNC_FETCH_AND_OR32, 1, [Define if you have __sync_fetch_and_or() for 32-bit integers]))
-
-	    ETHR_CHK_SYNC_OP([__sync_val_compare_and_swap], [3], [64], [$int64], AC_DEFINE(ETHR_HAVE___SYNC_VAL_COMPARE_AND_SWAP64, 1, [Define if you have __sync_val_compare_and_swap() for 64-bit integers]))
-	    test "$have_sync_op" = "yes" && ethr_have_native_atomics=yes
-	    ETHR_CHK_SYNC_OP([__sync_add_and_fetch], [2], [64], [$int64], AC_DEFINE(ETHR_HAVE___SYNC_ADD_AND_FETCH64, 1, [Define if you have __sync_add_and_fetch() for 64-bit integers]))
-	    ETHR_CHK_SYNC_OP([__sync_fetch_and_and], [2], [64], [$int64], AC_DEFINE(ETHR_HAVE___SYNC_FETCH_AND_AND64, 1, [Define if you have __sync_fetch_and_and() for 64-bit integers]))
-	    ETHR_CHK_SYNC_OP([__sync_fetch_and_or], [2], [64], [$int64], AC_DEFINE(ETHR_HAVE___SYNC_FETCH_AND_OR64, 1, [Define if you have __sync_fetch_and_or() for 64-bit integers]))
-
-	    if test $int128 != no; then
-	        ETHR_CHK_SYNC_OP([__sync_val_compare_and_swap], [3], [128], [$int128], AC_DEFINE(ETHR_HAVE___SYNC_VAL_COMPARE_AND_SWAP128, 1, [Define if you have __sync_val_compare_and_swap() for 128-bit integers]))
-	    fi
+
+	    ETHR_CHK_GCC_ATOMIC_OPS([])
 
 	    AC_MSG_CHECKING([for a usable libatomic_ops implementation])
 	    case "x$with_libatomic_ops" in
@@ -1448,6 +1971,7 @@ case "$THR_LIB_NAME" in
 #endif
 	    	        ],
 	    	        [ethr_have_native_atomics=yes
+			 ethr_native_atomic_implementation=libatomic_ops
 	    	         ethr_have_libatomic_ops=yes])
 	    AC_MSG_RESULT([$ethr_have_libatomic_ops])
 	    if test $ethr_have_libatomic_ops = yes; then
@@ -1479,15 +2003,19 @@ case "$THR_LIB_NAME" in
 	    	        *)
 	    	    	    AC_MSG_ERROR([Unsupported Sparc memory order: $with_sparc_memory_order]);;
 	    	    esac
+		    ethr_native_atomic_implementation=ethread
 	    	    ethr_have_native_atomics=yes;; 
 	      i86pc | i*86 | x86_64 | amd64)
 	    	    if test "$enable_x86_out_of_order" = "yes"; then
 	    	    	    AC_DEFINE(ETHR_X86_OUT_OF_ORDER, 1, [Define if x86/x86_64 out of order instructions should be synchronized])
 	    	    fi
+		    ethr_native_atomic_implementation=ethread
 	    	    ethr_have_native_atomics=yes;;
 	      macppc | ppc | powerpc | "Power Macintosh")
+	      	    ethr_native_atomic_implementation=ethread
 	    	    ethr_have_native_atomics=yes;;
 	      tile)
+	            ethr_native_atomic_implementation=ethread
 	    	    ethr_have_native_atomics=yes;;
 	      *)
 	    	    ;;
@@ -1660,109 +2188,199 @@ AC_SUBST(ETHR_X86_SSE2_ASM)
 ])
 
 
-
 dnl ----------------------------------------------------------------------
 dnl
 dnl ERL_TIME_CORRECTION
 dnl
-dnl In the presence of a high resolution realtime timer Erlang can adapt
-dnl its view of time relative to this timer. On solaris such a timer is
-dnl available with the syscall gethrtime(). On other OS's a fallback
-dnl solution using times() is implemented. (However on e.g. FreeBSD times()
-dnl is implemented using gettimeofday so it doesn't make much sense to
-dnl use it there...) On second thought, it seems to be safer to do it the
-dnl other way around. I.e. only use times() on OS's where we know it will
-dnl work...
+dnl Check for primitives that can be used for implementing
+dnl erts_os_monotonic_time() and erts_os_system_time()
 dnl
 
 AC_DEFUN(ERL_TIME_CORRECTION,
-[if test x$ac_cv_func_gethrtime = x; then
-  AC_CHECK_FUNC(gethrtime)
-fi
-if test x$clock_gettime_correction = xunknown; then
-	AC_TRY_COMPILE([#include <time.h>],
-			[struct timespec ts;
-     			 long long result;
-			 clock_gettime(CLOCK_MONOTONIC,&ts);
-                         result = ((long long) ts.tv_sec) * 1000000000LL + 
-			 ((long long) ts.tv_nsec);],
-			clock_gettime_compiles=yes,
-			clock_gettime_compiles=no)
-else
-	clock_gettime_compiles=no
+[
+
+AC_ARG_WITH(clock-resolution,
+AS_HELP_STRING([--with-clock-resolution=high|low|default],
+               [specify wanted clock resolution)]))
+
+AC_ARG_WITH(clock-gettime-realtime-id,
+AS_HELP_STRING([--with-clock-gettime-realtime-id=CLOCKID],
+               [specify clock id to use with clock_gettime() for realtime time)]))
+
+AC_ARG_WITH(clock-gettime-monotonic-id,
+AS_HELP_STRING([--with-clock-gettime-monotonic-id=CLOCKID],
+               [specify clock id to use with clock_gettime() for monotonic time)]))
+
+case "$with_clock_resolution" in
+   ""|no|yes)
+     with_clock_resolution=default;;
+   high|low|default)
+     ;;
+   *)
+     AC_MSG_ERROR([Invalid wanted clock resolution: $with_clock_resolution])
+     ;;
+esac
+
+case "$with_clock_gettime_realtime_id" in
+   ""|no)
+     with_clock_gettime_realtime_id=no
+     ;;
+   CLOCK_*CPUTIME*)
+     AC_MSG_ERROR([Invalid clock_gettime() realtime clock id: Refusing to use the cputime clock id $with_clock_gettime_realtime_id as realtime clock id])
+     ;;
+   CLOCK_MONOTONIC*|CLOCK_BOOTTIME*|CLOCK_UPTIME*|CLOCK_HIGHRES*)
+     AC_MSG_ERROR([Invalid clock_gettime() realtime clock id: Refusing to use the monotonic clock id $with_clock_gettime_realtime_id as realtime clock id])
+     ;;
+   CLOCK_*)
+     ;;
+   *)
+     AC_MSG_ERROR([Invalid clock_gettime() clock id: $with_clock_gettime_realtime_id])
+     ;;
+esac
+
+case "$with_clock_gettime_monotonic_id" in
+   ""|no)
+     with_clock_gettime_monotonic_id=no
+     ;;
+   CLOCK_*CPUTIME*)
+     AC_MSG_ERROR([Invalid clock_gettime() monotonic clock id: Refusing to use the cputime clock id $with_clock_gettime_monotonic_id as monotonic clock id])
+     ;;
+   CLOCK_REALTIME*|CLOCK_TAI*)
+     AC_MSG_ERROR([Invalid clock_gettime() monotonic clock id: Refusing to use the realtime clock id $with_clock_gettime_monotonic_id as monotonic clock id])
+     ;;
+   CLOCK_*)
+     ;;
+   *)
+     AC_MSG_ERROR([Invalid clock_gettime() clock id: $with_clock_gettime_monotonic_id])
+     ;;
+esac
+
+case "$with_clock_resolution-$with_clock_gettime_realtime_id" in
+  high-no)
+	ERL_WALL_CLOCK(high_resolution);;
+  low-no)
+	ERL_WALL_CLOCK(low_resolution);;
+  default-no)
+	ERL_WALL_CLOCK(default_resolution);;
+  *)
+	ERL_WALL_CLOCK(custom_resolution, $with_clock_gettime_realtime_id);;
+esac
+
+case "$erl_wall_clock_func-$erl_wall_clock_id-$with_clock_gettime_realtime_id" in
+  *-*-no)
+    ;;
+  clock_gettime-$with_clock_gettime_realtime_id-$with_clock_gettime_realtime_id)
+    ;;
+  *)
+    AC_MSG_ERROR([$with_clock_gettime_realtime_id as clock id to clock_gettime() doesn't compile])
+    ;;
+esac
+
+case $erl_wall_clock_func in
+  mach_clock_get_time)
+    AC_DEFINE(OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME, [1], [Define if you want to implement erts_os_system_time() using mach clock_get_time()])
+    ;;
+  clock_gettime)
+    AC_DEFINE(OS_SYSTEM_TIME_USING_CLOCK_GETTIME, [1], [Define if you want to implement erts_os_system_time() using clock_gettime()])
+    ;;
+  gettimeofday)
+    AC_DEFINE(OS_SYSTEM_TIME_GETTIMEOFDAY,  [1], [Define if you want to implement erts_os_system_time() using gettimeofday()])
+    ;;
+  *)
+    ;;
+esac
+
+if test "x$erl_wall_clock_id" != "x"; then
+    AC_DEFINE_UNQUOTED(WALL_CLOCK_ID_STR, ["$erl_wall_clock_id"], [Define as a string of wall clock id to use])
+    AC_DEFINE_UNQUOTED(WALL_CLOCK_ID, [$erl_wall_clock_id], [Define to wall clock id to use])
 fi
-			
 
-AC_CACHE_CHECK([how to correct for time adjustments], erl_cv_time_correction,
-[
-case $clock_gettime_correction in
-    yes)
-	erl_cv_time_correction=clock_gettime;;	
-    no|unknown)
-	case $ac_cv_func_gethrtime in
-  	    yes)
-    		erl_cv_time_correction=hrtime ;;
-  	    no)
-    		case $host_os in
-        	    linux*)
-			case $clock_gettime_correction in
-			    unknown)
-				if test x$clock_gettime_compiles = xyes; then
-				    if test X$cross_compiling != Xyes; then
-				    	linux_kernel_vsn_=`uname -r`
-				    	case $linux_kernel_vsn_ in
-					    [[0-1]].*|2.[[0-5]]|2.[[0-5]].*)
-					    	erl_cv_time_correction=times ;;
-					    *)
-					    	erl_cv_time_correction=clock_gettime;;
-				    	esac
-				    else
-					case X$erl_xcomp_linux_clock_gettime_correction in
-					    X)
-						erl_cv_time_correction=cross;;
-					    Xyes|Xno)
-						if test $erl_xcomp_linux_clock_gettime_correction = yes; then
-						    erl_cv_time_correction=clock_gettime
-						else
-					    	    erl_cv_time_correction=times
-						fi;;
-					    *)
-						AC_MSG_ERROR([Bad erl_xcomp_linux_clock_gettime_correction value: $erl_xcomp_linux_clock_gettime_correction]);;
-					esac
-				    fi
-				else
-				    erl_cv_time_correction=times
-				fi
-				;;
-			     *)				
-        			erl_cv_time_correction=times ;;
-			esac
-			;;
-            	    *)
-        		erl_cv_time_correction=none ;;
-    		esac
-    		;;
-	esac
-	;;
+case "$with_clock_resolution-$with_clock_gettime_monotonic_id" in
+  high-no)
+	ERL_MONOTONIC_CLOCK(high_resolution);;
+  low-no)
+	ERL_MONOTONIC_CLOCK(low_resolution);;
+  default-no)
+	ERL_MONOTONIC_CLOCK(default_resolution);;
+  *)
+	ERL_MONOTONIC_CLOCK(custom_resolution, $with_clock_gettime_monotonic_id);;
+esac
+
+case "$erl_monotonic_clock_func-$erl_monotonic_clock_id-$with_clock_gettime_monotonic_id" in
+  *-*-no)
+    ;;
+  clock_gettime-$with_clock_gettime_monotonic_id-$with_clock_gettime_monotonic_id)
+    ;;
+  *)
+    AC_MSG_ERROR([$with_clock_gettime_monotonic_id as clock id to clock_gettime() doesn't compile])
+    ;;
 esac
-])
 
-xrtlib=""
-case $erl_cv_time_correction in
+case $erl_monotonic_clock_func in
   times)
-    AC_DEFINE(CORRECT_USING_TIMES,[],
-	[Define if you do not have a high-res. timer & want to use times() instead])
+    AC_DEFINE(OS_MONOTONIC_TIME_USING_TIMES, [1], [Define if you want to implement erts_os_monotonic_time() using times()])
     ;;
-  clock_gettime|cross)
-    if test $erl_cv_time_correction = cross; then
-	erl_cv_time_correction=clock_gettime
-	AC_MSG_WARN([result clock_gettime guessed because of cross compilation])
-    fi
-    xrtlib="-lrt"
-    AC_DEFINE(GETHRTIME_WITH_CLOCK_GETTIME,[1],
-	[Define if you want to use clock_gettime to simulate gethrtime])
+  mach_clock_get_time)
+    AC_DEFINE(OS_MONOTONIC_TIME_USING_MACH_CLOCK_GET_TIME, [1], [Define if you want to implement erts_os_monotonic_time() using mach clock_get_time()])
+    ;;
+  clock_gettime)
+    AC_DEFINE(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME, [1], [Define if you want to implement erts_os_monotonic_time() using clock_gettime()])
+    ;;
+  gethrtime)
+    AC_DEFINE(OS_MONOTONIC_TIME_USING_GETHRTIME,  [1], [Define if you want to implement erts_os_monotonic_time() using gethrtime()])
+    ;;
+  *)
+    ;;
+esac
+
+if test $erl_corrected_monotonic_clock = yes; then
+  AC_DEFINE(ERTS_HAVE_CORRECTED_OS_MONOTONIC_TIME, [1], [Define if OS monotonic clock is corrected])
+fi
+
+if test $erl_monotonic_clock_low_resolution = yes; then
+  AC_DEFINE(ERTS_HAVE_LOW_RESOLUTION_OS_MONOTONIC_LOW, [1], [Define if you have a low resolution OS monotonic clock])
+fi
+
+xrtlib="$erl_monotonic_clock_lib"
+if test "x$erl_monotonic_clock_id" != "x"; then
+    AC_DEFINE_UNQUOTED(MONOTONIC_CLOCK_ID_STR, ["$erl_monotonic_clock_id"], [Define as a string of monotonic clock id to use])
+    AC_DEFINE_UNQUOTED(MONOTONIC_CLOCK_ID, [$erl_monotonic_clock_id], [Define to monotonic clock id to use])
+fi
+
+if test $erl_cv_clock_gettime_monotonic_raw = yes; then
+  AC_DEFINE(HAVE_CLOCK_GETTIME_MONOTONIC_RAW, [1], [Define if you have clock_gettime(CLOCK_MONOTONIC_RAW, _)])
+fi
+
+ERL_MONOTONIC_CLOCK(high_resolution)
+
+case $$erl_monotonic_clock_low_resolution-$erl_monotonic_clock_func in
+  no-mach_clock_get_time)
+    monotonic_hrtime=yes    
+    AC_DEFINE(SYS_HRTIME_USING_MACH_CLOCK_GET_TIME, [1], [Define if you want to implement erts_os_hrtime() using mach clock_get_time()])
+    ;;
+  no-clock_gettime)
+    monotonic_hrtime=yes
+    AC_DEFINE(SYS_HRTIME_USING_CLOCK_GETTIME, [1], [Define if you want to implement erts_os_hrtime() using clock_gettime()])
+    ;;
+  no-gethrtime)
+    monotonic_hrtime=yes
+    AC_DEFINE(SYS_HRTIME_USING_GETHRTIME,  [1], [Define if you want to implement erts_os_hrtime() using gethrtime()])
+    ;;
+  *)
+    monotonic_hrtime=no
     ;;
 esac
+
+if test $monotonic_hrtime = yes; then
+    AC_DEFINE(HAVE_MONOTONIC_ERTS_SYS_HRTIME, [1], [Define if you have a monotonic erts_os_hrtime() implementation])
+fi
+
+if test "x$erl_monotonic_clock_id" != "x"; then
+    AC_DEFINE_UNQUOTED(HRTIME_CLOCK_ID_STR, ["$erl_monotonic_clock_id"], [Define as a string of monotonic clock id to use])
+    AC_DEFINE_UNQUOTED(HRTIME_CLOCK_ID, [$erl_monotonic_clock_id], [Define to monotonic clock id to use])
+fi
+
+
 dnl
 dnl Check if gethrvtime is working, and if to use procfs ioctl
 dnl or (yet to be written) write to the procfs ctl file.
@@ -1835,6 +2453,7 @@ case X$erl_xcomp_gethrvtime_procfs_ioctl in
 esac
 ])
 
+LIBRT=$xrtlib
 case $erl_gethrvtime in
   procfs_ioctl)
 	AC_DEFINE(HAVE_GETHRVTIME_PROCFS_IOCTL,[1],
@@ -1881,43 +2500,33 @@ case $erl_gethrvtime in
 	    exit(0); return 0;
 	  }
 	],
-	erl_clock_gettime=yes,
-	erl_clock_gettime=no,
+	erl_clock_gettime_cpu_time=yes,
+	erl_clock_gettime_cpu_time=no,
 	[
 	case X$erl_xcomp_clock_gettime_cpu_time in
-	    X) erl_clock_gettime=cross;;
-	    Xyes|Xno) erl_clock_gettime=$erl_xcomp_clock_gettime_cpu_time;;
+	    X) erl_clock_gettime_cpu_time=cross;;
+	    Xyes|Xno) erl_clock_gettime_cpu_time=$erl_xcomp_clock_gettime_cpu_time;;
 	    *) AC_MSG_ERROR([Bad erl_xcomp_clock_gettime_cpu_time value: $erl_xcomp_clock_gettime_cpu_time]);;
 	esac
 	])
 	LIBS=$save_libs
-	case $host_os in
-		linux*)
-			AC_MSG_RESULT([no; not stable])
-			LIBRT=$xrtlib
+	AC_MSG_RESULT($erl_clock_gettime_cpu_time)
+	case $erl_clock_gettime_cpu_time in
+		yes)
+			AC_DEFINE(HAVE_CLOCK_GETTIME_CPU_TIME,[],
+				  [define if clock_gettime() works for getting process time])
+			LIBRT=-lrt
+			;;
+		cross)
+			erl_clock_gettime_cpu_time=no
+			AC_MSG_WARN([result no guessed because of cross compilation])
 			;;
 		*)
-			AC_MSG_RESULT($erl_clock_gettime)
-			case $erl_clock_gettime in
-	  			yes)
-					AC_DEFINE(HAVE_CLOCK_GETTIME,[],
-						  [define if clock_gettime() works for getting process time])
-					LIBRT=-lrt
-					;;
-	  			cross)
-					erl_clock_gettime=no
-					AC_MSG_WARN([result no guessed because of cross compilation])
-					LIBRT=$xrtlib
-					;;
-	  			*)
-					LIBRT=$xrtlib
-					;;
-			esac
 			;;
 	esac
-	AC_SUBST(LIBRT)
 	;;
 esac
+AC_SUBST(LIBRT)
 ])dnl
 
 dnl ----------------------------------------------------------------------
diff --git a/erts/autoconf/config.guess b/erts/autoconf/config.guess
index f475ceb413..f7eb141e75 100755
--- a/erts/autoconf/config.guess
+++ b/erts/autoconf/config.guess
@@ -1,8 +1,8 @@
 #! /bin/sh
 # Attempt to guess a canonical system name.
-#   Copyright 1992-2013 Free Software Foundation, Inc.
+#   Copyright 1992-2015 Free Software Foundation, Inc.
 
-timestamp='2013-02-12'
+timestamp='2015-03-04'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -24,12 +24,12 @@ timestamp='2013-02-12'
 # program.  This Exception is an additional permission under section 7
 # of the GNU General Public License, version 3 ("GPLv3").
 #
-# Originally written by Per Bothner.
+# Originally written by Per Bothner; maintained since 2000 by Ben Elliston.
 #
 # You can get the latest version of this script from:
 # http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
 #
-# Please send patches with a ChangeLog entry to [email protected].
+# Please send patches to <[email protected]>.
 
 
 me=`echo "$0" | sed -e 's,.*/,,'`
@@ -50,7 +50,7 @@ version="\
 GNU config.guess ($timestamp)
 
 Originally written by Per Bothner.
-Copyright 1992-2013 Free Software Foundation, Inc.
+Copyright 1992-2015 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -132,6 +132,27 @@ UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
 UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
 UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
 
+case "${UNAME_SYSTEM}" in
+Linux|GNU|GNU/*)
+	# If the system lacks a compiler, then just pick glibc.
+	# We could probably try harder.
+	LIBC=gnu
+
+	eval $set_cc_for_build
+	cat <<-EOF > $dummy.c
+	#include <features.h>
+	#if defined(__UCLIBC__)
+	LIBC=uclibc
+	#elif defined(__dietlibc__)
+	LIBC=dietlibc
+	#else
+	LIBC=gnu
+	#endif
+	EOF
+	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`
+	;;
+esac
+
 # Note: order is significant - the case branches are not exclusive.
 
 case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
@@ -147,20 +168,27 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	# Note: NetBSD doesn't particularly care about the vendor
 	# portion of the name.  We always set it to "unknown".
 	sysctl="sysctl -n hw.machine_arch"
-	UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \
-	    /usr/sbin/$sysctl 2>/dev/null || echo unknown)`
+	UNAME_MACHINE_ARCH=`(uname -p 2>/dev/null || \
+	    /sbin/$sysctl 2>/dev/null || \
+	    /usr/sbin/$sysctl 2>/dev/null || \
+	    echo unknown)`
 	case "${UNAME_MACHINE_ARCH}" in
 	    armeb) machine=armeb-unknown ;;
 	    arm*) machine=arm-unknown ;;
 	    sh3el) machine=shl-unknown ;;
 	    sh3eb) machine=sh-unknown ;;
 	    sh5el) machine=sh5le-unknown ;;
+	    earmv*)
+		arch=`echo ${UNAME_MACHINE_ARCH} | sed -e 's,^e\(armv[0-9]\).*$,\1,'`
+		endian=`echo ${UNAME_MACHINE_ARCH} | sed -ne 's,^.*\(eb\)$,\1,p'`
+		machine=${arch}${endian}-unknown
+		;;
 	    *) machine=${UNAME_MACHINE_ARCH}-unknown ;;
 	esac
 	# The Operating System including object format, if it has switched
 	# to ELF recently, or will in the future.
 	case "${UNAME_MACHINE_ARCH}" in
-	    arm*|i386|m68k|ns32k|sh3*|sparc|vax)
+	    arm*|earm*|i386|m68k|ns32k|sh3*|sparc|vax)
 		eval $set_cc_for_build
 		if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
 			| grep -q __ELF__
@@ -176,6 +204,13 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 		os=netbsd
 		;;
 	esac
+	# Determine ABI tags.
+	case "${UNAME_MACHINE_ARCH}" in
+	    earm*)
+		expr='s/^earmv[0-9]/-eabi/;s/eb$//'
+		abi=`echo ${UNAME_MACHINE_ARCH} | sed -e "$expr"`
+		;;
+	esac
 	# The OS release
 	# Debian GNU/NetBSD machines have a different userland, and
 	# thus, need a distinct triplet. However, they do not need
@@ -192,7 +227,7 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	# Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
 	# contains redundant information, the shorter form:
 	# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
-	echo "${machine}-${os}${release}"
+	echo "${machine}-${os}${release}${abi}"
 	exit ;;
     *:Bitrig:*:*)
 	UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'`
@@ -558,8 +593,9 @@ EOF
 	else
 		IBM_ARCH=powerpc
 	fi
-	if [ -x /usr/bin/oslevel ] ; then
-		IBM_REV=`/usr/bin/oslevel`
+	if [ -x /usr/bin/lslpp ] ; then
+		IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc |
+			   awk -F: '{ print $3 }' | sed s/[0-9]*$/0/`
 	else
 		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
 	fi
@@ -805,7 +841,7 @@ EOF
     *:MINGW*:*)
 	echo ${UNAME_MACHINE}-pc-mingw32
 	exit ;;
-    i*:MSYS*:*)
+    *:MSYS*:*)
 	echo ${UNAME_MACHINE}-pc-msys
 	exit ;;
     i*:windows32*:*)
@@ -853,21 +889,21 @@ EOF
 	exit ;;
     *:GNU:*:*)
 	# the GNU system
-	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
+	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-${LIBC}`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
 	exit ;;
     *:GNU/*:*:*)
 	# other systems with GNU libc and userland
-	echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu
+	echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-${LIBC}
 	exit ;;
     i*86:Minix:*:*)
 	echo ${UNAME_MACHINE}-pc-minix
 	exit ;;
     aarch64:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     aarch64_be:Linux:*:*)
 	UNAME_MACHINE=aarch64_be
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     alpha:Linux:*:*)
 	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
@@ -880,59 +916,57 @@ EOF
 	  EV68*) UNAME_MACHINE=alphaev68 ;;
 	esac
 	objdump --private-headers /bin/sh | grep -q ld.so.1
-	if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi
-	echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
+	if test "$?" = 0 ; then LIBC="gnulibc1" ; fi
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    arc:Linux:*:* | arceb:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     arm*:Linux:*:*)
 	eval $set_cc_for_build
 	if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
 	    | grep -q __ARM_EABI__
 	then
-	    echo ${UNAME_MACHINE}-unknown-linux-gnu
+	    echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	else
 	    if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
 		| grep -q __ARM_PCS_VFP
 	    then
-		echo ${UNAME_MACHINE}-unknown-linux-gnueabi
+		echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabi
 	    else
-		echo ${UNAME_MACHINE}-unknown-linux-gnueabihf
+		echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabihf
 	    fi
 	fi
 	exit ;;
     avr32*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     cris:Linux:*:*)
-	echo ${UNAME_MACHINE}-axis-linux-gnu
+	echo ${UNAME_MACHINE}-axis-linux-${LIBC}
 	exit ;;
     crisv32:Linux:*:*)
-	echo ${UNAME_MACHINE}-axis-linux-gnu
+	echo ${UNAME_MACHINE}-axis-linux-${LIBC}
+	exit ;;
+    e2k:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     frv:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     hexagon:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     i*86:Linux:*:*)
-	LIBC=gnu
-	eval $set_cc_for_build
-	sed 's/^	//' << EOF >$dummy.c
-	#ifdef __dietlibc__
-	LIBC=dietlibc
-	#endif
-EOF
-	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'`
-	echo "${UNAME_MACHINE}-pc-linux-${LIBC}"
+	echo ${UNAME_MACHINE}-pc-linux-${LIBC}
 	exit ;;
     ia64:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     m32r*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     m68*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     mips:Linux:*:* | mips64:Linux:*:*)
 	eval $set_cc_for_build
@@ -951,57 +985,63 @@ EOF
 	#endif
 EOF
 	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'`
-	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
+	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-${LIBC}"; exit; }
 	;;
-    or1k:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+    openrisc*:Linux:*:*)
+	echo or1k-unknown-linux-${LIBC}
 	exit ;;
-    or32:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+    or32:Linux:*:* | or1k*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     padre:Linux:*:*)
-	echo sparc-unknown-linux-gnu
+	echo sparc-unknown-linux-${LIBC}
 	exit ;;
     parisc64:Linux:*:* | hppa64:Linux:*:*)
-	echo hppa64-unknown-linux-gnu
+	echo hppa64-unknown-linux-${LIBC}
 	exit ;;
     parisc:Linux:*:* | hppa:Linux:*:*)
 	# Look for CPU level
 	case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
-	  PA7*) echo hppa1.1-unknown-linux-gnu ;;
-	  PA8*) echo hppa2.0-unknown-linux-gnu ;;
-	  *)    echo hppa-unknown-linux-gnu ;;
+	  PA7*) echo hppa1.1-unknown-linux-${LIBC} ;;
+	  PA8*) echo hppa2.0-unknown-linux-${LIBC} ;;
+	  *)    echo hppa-unknown-linux-${LIBC} ;;
 	esac
 	exit ;;
     ppc64:Linux:*:*)
-	echo powerpc64-unknown-linux-gnu
+	echo powerpc64-unknown-linux-${LIBC}
 	exit ;;
     ppc:Linux:*:*)
-	echo powerpc-unknown-linux-gnu
+	echo powerpc-unknown-linux-${LIBC}
+	exit ;;
+    ppc64le:Linux:*:*)
+	echo powerpc64le-unknown-linux-${LIBC}
+	exit ;;
+    ppcle:Linux:*:*)
+	echo powerpcle-unknown-linux-${LIBC}
 	exit ;;
     s390:Linux:*:* | s390x:Linux:*:*)
-	echo ${UNAME_MACHINE}-ibm-linux
+	echo ${UNAME_MACHINE}-ibm-linux-${LIBC}
 	exit ;;
     sh64*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     sh*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     sparc:Linux:*:* | sparc64:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     tile*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     vax:Linux:*:*)
-	echo ${UNAME_MACHINE}-dec-linux-gnu
+	echo ${UNAME_MACHINE}-dec-linux-${LIBC}
 	exit ;;
     x86_64:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     xtensa*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     i*86:DYNIX/ptx:4*:*)
 	# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
@@ -1234,19 +1274,31 @@ EOF
 	exit ;;
     *:Darwin:*:*)
 	UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
-	case $UNAME_PROCESSOR in
-	    i386)
-		eval $set_cc_for_build
-		if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
-		  if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
-		      (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
-		      grep IS_64BIT_ARCH >/dev/null
-		  then
-		      UNAME_PROCESSOR="x86_64"
-		  fi
-		fi ;;
-	    unknown) UNAME_PROCESSOR=powerpc ;;
-	esac
+	eval $set_cc_for_build
+	if test "$UNAME_PROCESSOR" = unknown ; then
+	    UNAME_PROCESSOR=powerpc
+	fi
+	if test `echo "$UNAME_RELEASE" | sed -e 's/\..*//'` -le 10 ; then
+	    if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
+		if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
+		    (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
+		    grep IS_64BIT_ARCH >/dev/null
+		then
+		    case $UNAME_PROCESSOR in
+			i386) UNAME_PROCESSOR=x86_64 ;;
+			powerpc) UNAME_PROCESSOR=powerpc64 ;;
+		    esac
+		fi
+	    fi
+	elif test "$UNAME_PROCESSOR" = i386 ; then
+	    # Avoid executing cc on OS X 10.9, as it ships with a stub
+	    # that puts up a graphical alert prompting to install
+	    # developer tools.  Any system running Mac OS X 10.7 or
+	    # later (Darwin 11 and later) is required to have a 64-bit
+	    # processor. This is not true of the ARM version of Darwin
+	    # that Apple uses in portable devices.
+	    UNAME_PROCESSOR=x86_64
+	fi
 	echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
 	exit ;;
     *:procnto*:*:* | *:QNX:[0123456789]*:*)
@@ -1337,154 +1389,6 @@ EOF
 	exit ;;
 esac
 
-eval $set_cc_for_build
-cat >$dummy.c <<EOF
-#ifdef _SEQUENT_
-# include <sys/types.h>
-# include <sys/utsname.h>
-#endif
-main ()
-{
-#if defined (sony)
-#if defined (MIPSEB)
-  /* BFD wants "bsd" instead of "newsos".  Perhaps BFD should be changed,
-     I don't know....  */
-  printf ("mips-sony-bsd\n"); exit (0);
-#else
-#include <sys/param.h>
-  printf ("m68k-sony-newsos%s\n",
-#ifdef NEWSOS4
-	"4"
-#else
-	""
-#endif
-	); exit (0);
-#endif
-#endif
-
-#if defined (__arm) && defined (__acorn) && defined (__unix)
-  printf ("arm-acorn-riscix\n"); exit (0);
-#endif
-
-#if defined (hp300) && !defined (hpux)
-  printf ("m68k-hp-bsd\n"); exit (0);
-#endif
-
-#if defined (NeXT)
-#if !defined (__ARCHITECTURE__)
-#define __ARCHITECTURE__ "m68k"
-#endif
-  int version;
-  version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`;
-  if (version < 4)
-    printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version);
-  else
-    printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version);
-  exit (0);
-#endif
-
-#if defined (MULTIMAX) || defined (n16)
-#if defined (UMAXV)
-  printf ("ns32k-encore-sysv\n"); exit (0);
-#else
-#if defined (CMU)
-  printf ("ns32k-encore-mach\n"); exit (0);
-#else
-  printf ("ns32k-encore-bsd\n"); exit (0);
-#endif
-#endif
-#endif
-
-#if defined (__386BSD__)
-  printf ("i386-pc-bsd\n"); exit (0);
-#endif
-
-#if defined (sequent)
-#if defined (i386)
-  printf ("i386-sequent-dynix\n"); exit (0);
-#endif
-#if defined (ns32000)
-  printf ("ns32k-sequent-dynix\n"); exit (0);
-#endif
-#endif
-
-#if defined (_SEQUENT_)
-    struct utsname un;
-
-    uname(&un);
-
-    if (strncmp(un.version, "V2", 2) == 0) {
-	printf ("i386-sequent-ptx2\n"); exit (0);
-    }
-    if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */
-	printf ("i386-sequent-ptx1\n"); exit (0);
-    }
-    printf ("i386-sequent-ptx\n"); exit (0);
-
-#endif
-
-#if defined (vax)
-# if !defined (ultrix)
-#  include <sys/param.h>
-#  if defined (BSD)
-#   if BSD == 43
-      printf ("vax-dec-bsd4.3\n"); exit (0);
-#   else
-#    if BSD == 199006
-      printf ("vax-dec-bsd4.3reno\n"); exit (0);
-#    else
-      printf ("vax-dec-bsd\n"); exit (0);
-#    endif
-#   endif
-#  else
-    printf ("vax-dec-bsd\n"); exit (0);
-#  endif
-# else
-    printf ("vax-dec-ultrix\n"); exit (0);
-# endif
-#endif
-
-#if defined (alliant) && defined (i860)
-  printf ("i860-alliant-bsd\n"); exit (0);
-#endif
-
-  exit (1);
-}
-EOF
-
-$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && SYSTEM_NAME=`$dummy` &&
-	{ echo "$SYSTEM_NAME"; exit; }
-
-# Apollos put the system type in the environment.
-
-test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit; }
-
-# Convex versions that predate uname can use getsysinfo(1)
-
-if [ -x /usr/convex/getsysinfo ]
-then
-    case `getsysinfo -f cpu_type` in
-    c1*)
-	echo c1-convex-bsd
-	exit ;;
-    c2*)
-	if getsysinfo -f scalar_acc
-	then echo c32-convex-bsd
-	else echo c2-convex-bsd
-	fi
-	exit ;;
-    c34*)
-	echo c34-convex-bsd
-	exit ;;
-    c38*)
-	echo c38-convex-bsd
-	exit ;;
-    c4*)
-	echo c4-convex-bsd
-	exit ;;
-    esac
-fi
-
 cat >&2 <<EOF
 $0: unable to guess system type
 
diff --git a/erts/autoconf/config.sub b/erts/autoconf/config.sub
index bb6edbdb47..8f1229c6f7 100755
--- a/erts/autoconf/config.sub
+++ b/erts/autoconf/config.sub
@@ -1,8 +1,8 @@
 #! /bin/sh
 # Configuration validation subroutine script.
-#   Copyright 1992-2013 Free Software Foundation, Inc.
+#   Copyright 1992-2015 Free Software Foundation, Inc.
 
-timestamp='2013-02-12'
+timestamp='2015-03-08'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -25,7 +25,7 @@ timestamp='2013-02-12'
 # of the GNU General Public License, version 3 ("GPLv3").
 
 
-# Please send patches with a ChangeLog entry to [email protected].
+# Please send patches to <[email protected]>.
 #
 # Configuration subroutine to validate and canonicalize a configuration type.
 # Supply the specified configuration type as an argument.
@@ -68,7 +68,7 @@ Report bugs and patches to <[email protected]>."
 version="\
 GNU config.sub ($timestamp)
 
-Copyright 1992-2013 Free Software Foundation, Inc.
+Copyright 1992-2015 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -117,7 +117,7 @@ maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
 case $maybe_os in
   nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
   linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
-  knetbsd*-gnu* | netbsd*-gnu* | \
+  knetbsd*-gnu* | netbsd*-gnu* | netbsd*-eabi* | \
   kopensolaris*-gnu* | \
   storm-chaos* | os2-emx* | rtmk-nova*)
     os=-$maybe_os
@@ -252,19 +252,20 @@ case $basic_machine in
 	| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
 	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
 	| am33_2.0 \
-	| arc \
+	| arc | arceb \
 	| arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \
 	| avr | avr32 \
 	| be32 | be64 \
 	| bfin \
-	| c4x | clipper \
+	| c4x | c8051 | clipper \
 	| d10v | d30v | dlx | dsp16xx \
-	| epiphany \
-	| fido | fr30 | frv \
+	| e2k | epiphany \
+	| fido | fr30 | frv | ft32 \
 	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
 	| hexagon \
 	| i370 | i860 | i960 | ia64 \
 	| ip2k | iq2000 \
+	| k1om \
 	| le32 | le64 \
 	| lm32 \
 	| m32c | m32r | m32rle | m68000 | m68k | m88k \
@@ -282,8 +283,10 @@ case $basic_machine in
 	| mips64vr5900 | mips64vr5900el \
 	| mipsisa32 | mipsisa32el \
 	| mipsisa32r2 | mipsisa32r2el \
+	| mipsisa32r6 | mipsisa32r6el \
 	| mipsisa64 | mipsisa64el \
 	| mipsisa64r2 | mipsisa64r2el \
+	| mipsisa64r6 | mipsisa64r6el \
 	| mipsisa64sb1 | mipsisa64sb1el \
 	| mipsisa64sr71k | mipsisa64sr71kel \
 	| mipsr5900 | mipsr5900el \
@@ -295,11 +298,11 @@ case $basic_machine in
 	| nds32 | nds32le | nds32be \
 	| nios | nios2 | nios2eb | nios2el \
 	| ns16k | ns32k \
-	| open8 \
-	| or1k | or32 \
+	| open8 | or1k | or1knd | or32 \
 	| pdp10 | pdp11 | pj | pjl \
 	| powerpc | powerpc64 | powerpc64le | powerpcle \
 	| pyramid \
+	| riscv32 | riscv64 \
 	| rl78 | rx \
 	| score \
 	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
@@ -310,6 +313,7 @@ case $basic_machine in
 	| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
 	| ubicom32 \
 	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
+	| visium \
 	| we32k \
 	| x86 | xc16x | xstormy16 | xtensa \
 	| z8k | z80)
@@ -324,7 +328,10 @@ case $basic_machine in
 	c6x)
 		basic_machine=tic6x-unknown
 		;;
-	m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | picochip)
+	leon|leon[3-9])
+		basic_machine=sparc-$basic_machine
+		;;
+	m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip)
 		basic_machine=$basic_machine-unknown
 		os=-none
 		;;
@@ -366,21 +373,22 @@ case $basic_machine in
 	| aarch64-* | aarch64_be-* \
 	| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
 	| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
-	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
+	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \
 	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
 	| avr-* | avr32-* \
 	| be32-* | be64-* \
 	| bfin-* | bs2000-* \
 	| c[123]* | c30-* | [cjt]90-* | c4x-* \
-	| clipper-* | craynv-* | cydra-* \
+	| c8051-* | clipper-* | craynv-* | cydra-* \
 	| d10v-* | d30v-* | dlx-* \
-	| elxsi-* \
+	| e2k-* | elxsi-* \
 	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
 	| h8300-* | h8500-* \
 	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
 	| hexagon-* \
 	| i*86-* | i860-* | i960-* | ia64-* \
 	| ip2k-* | iq2000-* \
+	| k1om-* \
 	| le32-* | le64-* \
 	| lm32-* \
 	| m32c-* | m32r-* | m32rle-* \
@@ -400,8 +408,10 @@ case $basic_machine in
 	| mips64vr5900-* | mips64vr5900el-* \
 	| mipsisa32-* | mipsisa32el-* \
 	| mipsisa32r2-* | mipsisa32r2el-* \
+	| mipsisa32r6-* | mipsisa32r6el-* \
 	| mipsisa64-* | mipsisa64el-* \
 	| mipsisa64r2-* | mipsisa64r2el-* \
+	| mipsisa64r6-* | mipsisa64r6el-* \
 	| mipsisa64sb1-* | mipsisa64sb1el-* \
 	| mipsisa64sr71k-* | mipsisa64sr71kel-* \
 	| mipsr5900-* | mipsr5900el-* \
@@ -413,6 +423,7 @@ case $basic_machine in
 	| nios-* | nios2-* | nios2eb-* | nios2el-* \
 	| none-* | np1-* | ns16k-* | ns32k-* \
 	| open8-* \
+	| or1k*-* \
 	| orion-* \
 	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
 	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
@@ -430,6 +441,7 @@ case $basic_machine in
 	| ubicom32-* \
 	| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
 	| vax-* \
+	| visium-* \
 	| we32k-* \
 	| x86-* | x86_64-* | xc16x-* | xps100-* \
 	| xstormy16-* | xtensa*-* \
@@ -506,6 +518,9 @@ case $basic_machine in
 		basic_machine=i386-pc
 		os=-aros
 		;;
+        asmjs)
+		basic_machine=asmjs-unknown
+		;;
 	aux)
 		basic_machine=m68k-apple
 		os=-aux
@@ -767,6 +782,9 @@ case $basic_machine in
 		basic_machine=m68k-isi
 		os=-sysv
 		;;
+	leon-*|leon[3-9]-*)
+		basic_machine=sparc-`echo $basic_machine | sed 's/-.*//'`
+		;;
 	m68knommu)
 		basic_machine=m68k-unknown
 		os=-linux
@@ -794,7 +812,7 @@ case $basic_machine in
 		os=-mingw64
 		;;
 	mingw32)
-		basic_machine=i386-pc
+		basic_machine=i686-pc
 		os=-mingw32
 		;;
 	mingw32ce)
@@ -822,6 +840,10 @@ case $basic_machine in
 		basic_machine=powerpc-unknown
 		os=-morphos
 		;;
+	moxiebox)
+		basic_machine=moxie-unknown
+		os=-moxiebox
+		;;
 	msdos)
 		basic_machine=i386-pc
 		os=-msdos
@@ -830,7 +852,7 @@ case $basic_machine in
 		basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'`
 		;;
 	msys)
-		basic_machine=i386-pc
+		basic_machine=i686-pc
 		os=-msys
 		;;
 	mvs)
@@ -1354,7 +1376,7 @@ case $os in
 	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
 	      | -sym* | -kopensolaris* | -plan9* \
 	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
-	      | -aos* | -aros* \
+	      | -aos* | -aros* | -cloudabi* \
 	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
 	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
 	      | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
@@ -1367,14 +1389,14 @@ case $os in
 	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
 	      | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
 	      | -linux-newlib* | -linux-musl* | -linux-uclibc* \
-	      | -uxpv* | -beos* | -mpeix* | -udk* \
+	      | -uxpv* | -beos* | -mpeix* | -udk* | -moxiebox* \
 	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
 	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
 	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
 	      | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
 	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
 	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
-	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es*)
+	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* | -tirtos*)
 	# Remember, each alternative MUST END IN *, to match a version number.
 		;;
 	-qnx*)
@@ -1546,6 +1568,9 @@ case $basic_machine in
 	c4x-* | tic4x-*)
 		os=-coff
 		;;
+	c8051-*)
+		os=-elf
+		;;
 	hexagon-*)
 		os=-elf
 		;;
@@ -1589,9 +1614,6 @@ case $basic_machine in
 	mips*-*)
 		os=-elf
 		;;
-	or1k-*)
-		os=-elf
-		;;
 	or32-*)
 		os=-coff
 		;;
@@ -1786,4 +1808,3 @@ exit
 # time-stamp-format: "%:y-%02m-%02d"
 # time-stamp-end: "'"
 # End:
-
diff --git a/erts/autoconf/vxworks/sed.general b/erts/autoconf/vxworks/sed.general
index efa4e99054..c82b7348cf 100644
--- a/erts/autoconf/vxworks/sed.general
+++ b/erts/autoconf/vxworks/sed.general
@@ -78,8 +78,6 @@ s|@WITH_SCTP@||
 
 # HiPE
 s|@HIPE_ENABLED@||
-s|@PERFCTR_PATH@||
-s|@USE_PERFCTR@||
 
 # m4
 s|@OPSYS@|noopsys|
diff --git a/erts/autoconf/win32.config.cache.static b/erts/autoconf/win32.config.cache.static
index b387db2b22..b3328e5414 100755
--- a/erts/autoconf/win32.config.cache.static
+++ b/erts/autoconf/win32.config.cache.static
@@ -221,7 +221,6 @@ ac_cv_type_size_t=${ac_cv_type_size_t=yes}
 ac_cv_type_uid_t=${ac_cv_type_uid_t=no}
 ac_cv_type_void_p=${ac_cv_type_void_p=yes}
 ac_cv_working_alloca_h=${ac_cv_working_alloca_h=no}
-erl_cv_time_correction=${erl_cv_time_correction=none}
 erts_cv___after_morecore_hook_can_track_malloc=${erts_cv___after_morecore_hook_can_track_malloc=no}
 erts_cv_fwrite_unlocked=${erts_cv_fwrite_unlocked=no}
 erts_cv_have__end_symbol=${erts_cv_have__end_symbol=no}
diff --git a/erts/autoconf/win64.config.cache.static b/erts/autoconf/win64.config.cache.static
index a8a2bfb59c..c7d92c7000 100755
--- a/erts/autoconf/win64.config.cache.static
+++ b/erts/autoconf/win64.config.cache.static
@@ -262,7 +262,6 @@ ac_cv_type_signal=${ac_cv_type_signal=void}
 ac_cv_type_size_t=${ac_cv_type_size_t=yes}
 ac_cv_type_uid_t=${ac_cv_type_uid_t=no}
 ac_cv_working_alloca_h=${ac_cv_working_alloca_h=no}
-erl_cv_time_correction=${erl_cv_time_correction=none}
 erts_cv___after_morecore_hook_can_track_malloc=${erts_cv___after_morecore_hook_can_track_malloc=no}
 erts_cv_fwrite_unlocked=${erts_cv_fwrite_unlocked=no}
 erts_cv_have__end_symbol=${erts_cv_have__end_symbol=no}
diff --git a/erts/configure.in b/erts/configure.in
index b3fe48d62c..ce0cef871f 100644
--- a/erts/configure.in
+++ b/erts/configure.in
@@ -2,7 +2,7 @@ dnl Process this file with autoconf to produce a configure script. -*-m4-*-
 
 dnl %CopyrightBegin%
 dnl
-dnl Copyright Ericsson AB 1997-2014. All Rights Reserved.
+dnl Copyright Ericsson AB 1997-2015. All Rights Reserved.
 dnl
 dnl The contents of this file are subject to the Erlang Public License,
 dnl Version 1.1, (the "License"); you may not use this file except in
@@ -264,24 +264,6 @@ AS_HELP_STRING([--enable-m32-build],
   esac
 ],enable_m32_build=no)
 
-AC_SUBST(PERFCTR_PATH)
-AC_ARG_WITH(perfctr,
-AS_HELP_STRING([--with-perfctr=PATH],
-               [specify location of perfctr include and lib])
-AS_HELP_STRING([--without-perfctr], [don't use perfctr (default)]))
-
-if test "x$with_perfctr" = "xno" -o "x$with_perfctr" = "x" ; then
-    PERFCTR_PATH=
-else
-    if test ! -f "$with_perfctr/usr.lib/libperfctr.a" ; then
-	AC_MSG_ERROR(Invalid path to option --with-perfctr=PATH)
-    fi
-    PERFCTR_PATH="$with_perfctr"
-    AC_DEFINE(USE_PERFCTR,[1],
-              [Define to enable hrvtime() on Linux systems with perfctr extension])
-fi
-
-
 AC_ARG_WITH(dynamic-trace,
 AS_HELP_STRING([--with-dynamic-trace={dtrace|systemtap}],
 	       [specify use of dynamic trace framework, dtrace or systemtap])
@@ -335,15 +317,6 @@ if test X"$use_vm_probes" = X"yes"; then
 	     [Define to enable VM dynamic trace probes])
 fi
 
-
-AC_ARG_ENABLE(clock-gettime,
-AS_HELP_STRING([--enable-clock-gettime],
-               [use clock-gettime for time correction]),
-[ case "$enableval" in
-    no) clock_gettime_correction=no ;;
-    *) clock_gettime_correction=yes ;;
-  esac ], clock_gettime_correction=unknown)
-
 AC_ARG_WITH(assumed-cache-line-size,
 AS_HELP_STRING([--with-assumed-cache-line-size=SIZE],
                [specify assumed cache line size in bytes (valid values are powers of two between and including 16 and 8192; default is 64)]))
@@ -649,7 +622,7 @@ fi
 case $chk_opsys_ in
     win32)			OPSYS=win32;;
     solaris2.*|SunOS5.*)	OPSYS=sol2;;
-    linux|Linux)		OPSYS=linux;;
+    linux*|Linux)		OPSYS=linux;;
     darwin|Darwin)		OPSYS=darwin;;
     freebsd|FreeBSD)		OPSYS=freebsd;;
     *)				OPSYS=noopsys
@@ -676,6 +649,7 @@ case $chk_arch_ in
     powerpc)	ARCH=ppc;;
     ppc)	ARCH=ppc;;
     ppc64)	ARCH=ppc64;;
+    ppc64le)	ARCH=ppc64;;
     "Power Macintosh")	ARCH=ppc;;
     armv5b)	ARCH=arm;;
     armv5teb)	ARCH=arm;;
@@ -1123,10 +1097,31 @@ if test $ERTS_BUILD_SMP_EMU = yes; then
 
 	case "$ethr_have_native_atomics-$smp_require_native_atomics-$ethr_have_native_spinlock" in
 	  yes-*)
+		if test "$ethr_native_atomic_implementation" = "gcc_sync"; then
+		    test -f "$ERL_TOP/erts/CONF_INFO" ||
+			echo "" > "$ERL_TOP/erts/CONF_INFO"
+		    cat >> $ERL_TOP/erts/CONF_INFO <<EOF
+
+                 WARNING:
+                   Only gcc's __sync_* builtins available for
+                   atomic memory access. This will cause lots
+                   of expensive and unnecessary memory barrier
+                   instructions to be issued which will make
+                   the performance of the runtime system
+                   suffer. You are *strongly* advised to
+                   upgrade to a gcc version that supports the
+                   __atomic_* builtins (at least gcc version
+                   4.7) or build with libatomic_ops. See the
+                   "Atomic Memory Operations and the VM"
+		   chapter of \$ERL_TOP/HOWTO/INSTALL.md for
+                   more information.
+
+EOF
+		fi
 		;;
 
 	  no-yes-*)
-		AC_MSG_ERROR([No native atomic implementation found. See Configuring section in INSTALL.md for more information.])
+		AC_MSG_ERROR([No native atomic implementation found. See the \"Atomic Memory Operations and the VM\" chapter of \$ERL_TOP/HOWTO/INSTALL.md for more information.])
 		;;
 
 	  no-no-yes)
@@ -1555,10 +1550,11 @@ if test "$have_gethostbyname_r" = yes; then
 				    [Define to flavour of gethostbyname_r]))
 		;;
 		*)
-			AC_EGREP_CPP(yes,[#include <stdio.h>
-			  #ifdef __GLIBC__
-			  yes
-			  #endif
+			AC_EGREP_CPP(^yes$,[
+#include <stdio.h>
+#ifdef __GLIBC__
+yes
+#endif
 			  ], AC_DEFINE(HAVE_GETHOSTBYNAME_R, GHBN_R_GLIBC,
 				[Define to flavour of gethostbyname_r]))
 		;;
@@ -1765,6 +1761,10 @@ AC_CHECK_HEADER(sys/event.h, have_kernel_poll=kqueue)
 AC_CHECK_HEADER(sys/epoll.h, have_kernel_poll=epoll)
 AC_CHECK_HEADER(sys/devpoll.h, have_kernel_poll=/dev/poll)
 
+dnl Check if we have timerfds to be used for high accuracy
+dnl epoll_wait timeouts
+AC_CHECK_HEADERS([sys/timerfd.h])
+
 dnl Check for kernel SCTP support
 AC_SUBST(LIBSCTP)
 if test "x$enable_sctp" != "xno" ; then
@@ -2110,7 +2110,7 @@ AC_CHECK_FUNCS([ieee_handler fpsetmask finite isnan isinf res_gethostbyname dlop
 		gethrtime localtime_r gmtime_r inet_pton \
 		memcpy mallopt sbrk _sbrk __sbrk brk _brk __brk \
 		flockfile fstat strlcpy strlcat setsid posix2time time2posix \
-		setlocale nl_langinfo poll mlockall])
+		setlocale nl_langinfo poll mlockall ppoll])
 
 AC_MSG_CHECKING([for isfinite])
 AC_TRY_LINK([#include <math.h>],
@@ -2913,6 +2913,10 @@ else
 #include <signal.h>
 #include <stdlib.h>
 
+#if defined(__clang__) || defined(__llvm__)
+#error "Clang/LLVM generates broken code for FP exceptions"
+#endif
+
 volatile int erl_fp_exception;
 
 /*
@@ -3503,19 +3507,6 @@ fi
 AC_SUBST(NATIVE_LIBS_ENABLED)
 
 #
-# Check if HiPE should use a standard installation of perfctr.
-#
-AC_SUBST(USE_PERFCTR)
-if test "x$HIPE_ENABLED" = "xyes" ; then
-  if test "x$with_perfctr" = "x" ; then
-      AC_CHECK_LIB(perfctr, vperfctr_info, [USE_PERFCTR=1
-	  AC_DEFINE(USE_PERFCTR,[1],[Define to enable hrvtime() on Linux systems with perfctr extension])])
-  elif test "x$with_perfctr" != "xno" ; then
-      USE_PERFCTR=1
-  fi
-fi
-
-#
 # Check for working poll().
 #
 AC_MSG_CHECKING([for working poll()])
@@ -4303,10 +4294,10 @@ case "$erl_xcomp_without_sysroot-$with_ssl" in
 			SSL_INCLUDE="-I$dir/include"
 			old_CPPFLAGS=$CPPFLAGS
 			CPPFLAGS=$SSL_INCLUDE
-			AC_EGREP_CPP(yes,[
+			AC_EGREP_CPP(^yes$,[
 #include <openssl/opensslv.h>
 #if OPENSSL_VERSION_NUMBER >= 0x0090700fL
-  yes
+yes
 #endif
 			],[
 			ssl_found=yes
@@ -4501,10 +4492,10 @@ if test "x$SSL_APP" != "x" ; then
     AC_MSG_CHECKING(for OpenSSL kerberos 5 support)
     old_CPPFLAGS=$CPPFLAGS
     CPPFLAGS=$SSL_INCLUDE
-    AC_EGREP_CPP(yes,[
+    AC_EGREP_CPP(^yes$,[
 #include <openssl/opensslconf.h>
 #ifndef OPENSSL_NO_KRB5
-  yes
+yes
 #endif
       ],[
       AC_MSG_RESULT([yes])
@@ -4701,18 +4692,32 @@ AC_SUBST(os_mon_programs)
 AC_SUBST(CPU_SUP_LIBS)
 
 AC_CHECK_LIB(kstat, kstat_open, [ 
-	os_mon_programs="$os_mon_programs cpu_sup"	 
+	use_cpu_sup=yes
 	CPU_SUP_LIBS="$CPU_SUP_LIBS -lkstat"
 	])
 
+AC_CHECK_LIB(kvm, kvm_open, [
+	use_cpu_sup=yes
+	CPU_SUP_LIBS="$CPU_SUP_LIBS -lkvm"
+	])
+
 case $host_os in
 	solaris2*)
 		os_mon_programs="$os_mon_programs ferrule mod_syslog" ;;
+	darwin*)
+		use_cpu_sup=yes ;;
+	openbsd*)
+		use_cpu_sup=yes ;;
 	linux*)
-		os_mon_programs="$os_mon_programs cpu_sup" ;;
+		use_cpu_sup=yes ;;
+	freebsd*)
+		use_cpu_sup=yes ;;
 esac
 
-			
+if test "$use_cpu_sup" = "yes"; then
+    os_mon_programs="$os_mon_programs cpu_sup"
+fi
+
 AC_ARG_WITH(javac,
 AS_HELP_STRING([--with-javac=JAVAC], [specify Java compiler to use])
 AS_HELP_STRING([--with-javac], [use a Java compiler if found (default)])
@@ -4743,12 +4748,12 @@ fi
 
 AC_CHECK_PROGS(JAVAC, $check_javac)
 if test -n "$JAVAC"; then
-  dnl Make sure it's at least JDK 1.5
-  AC_CACHE_CHECK(for JDK version 1.5, 
-     ac_cv_prog_javac_ver_1_5,
+  dnl Make sure it's at least JDK 1.6
+  AC_CACHE_CHECK(for JDK version 1.6, 
+     ac_cv_prog_javac_ver_1_6,
      [ERL_TRY_LINK_JAVA([], [for (String i : args);],
-        ac_cv_prog_javac_ver_1_5=yes, ac_cv_prog_javac_ver_1_5=no)])
-  if test $ac_cv_prog_javac_ver_1_5 = no; then
+        ac_cv_prog_javac_ver_1_6=yes, ac_cv_prog_javac_ver_1_6=no)])
+  if test $ac_cv_prog_javac_ver_1_6 = no; then
     unset -v JAVAC
   fi
 fi
@@ -4905,6 +4910,11 @@ LDFLAGS="$LDFLAGS $sanitizers"
 ])
 
 dnl ----------------------------------------------------------------------
+dnl Check for log2
+dnl ----------------------------------------------------------------------
+AC_CHECK_FUNCS([log2])
+
+dnl ----------------------------------------------------------------------
 dnl Output the result.
 dnl ----------------------------------------------------------------------
 
diff --git a/erts/doc/src/Makefile b/erts/doc/src/Makefile
index e8b856c3ff..a83aa9b875 100644
--- a/erts/doc/src/Makefile
+++ b/erts/doc/src/Makefile
@@ -177,6 +177,8 @@ release_docs_spec: docs
 	$(INSTALL_DIR) "$(RELSYSDIR)/doc/html"
 	$(INSTALL_DATA) $(HTMLDIR)/* \
 		"$(RELSYSDIR)/doc/html"
+	$(INSTALL_DATA) $(ERL_TOP)/erts/example/time_compat.erl \
+		"$(RELSYSDIR)/doc/html"
 	$(INSTALL_DATA) $(INFO_FILE) "$(RELSYSDIR)"
 	$(INSTALL_DIR) "$(RELEASE_PATH)/man/man3"
 	$(INSTALL_DATA) $(MAN3DIR)/* "$(RELEASE_PATH)/man/man3"
diff --git a/erts/doc/src/crash_dump.xml b/erts/doc/src/crash_dump.xml
index 2b5fc877c3..8291bf38b7 100644
--- a/erts/doc/src/crash_dump.xml
+++ b/erts/doc/src/crash_dump.xml
@@ -55,10 +55,12 @@
     emulator or the operating system can be reconfigured to avoid the
     crash, which is why interpreting the crash dump correctly is
     important.</p>
+  <p>On systems that support OS signals, it is also possible to stop
+    the runtime system and generate a crash dump by sending the SIGUSR1.</p>
   <p>The erlang crash dump is a readable text file, but it might not be
     very easy to read. Using the Crashdump Viewer tool in the
     <c><![CDATA[observer]]></c> application will simplify the task. This is an
-    HTML based tool for browsing Erlang crash dumps.</p>
+    wx-widget based tool for browsing Erlang crash dumps.</p>
 
   <section>
     <marker id="general_info"></marker>
@@ -66,8 +68,9 @@
     <p>The first part of the dump shows the creation time for the dump,
       a slogan indicating the reason for the dump, the system version,
       of the node from which the dump originates, the compile time of
-      the emulator running the originating node and the number of
-      atoms in the atom table.
+      the emulator running the originating node, the number of
+      atoms in the atom table and the runtime system thread that caused
+      the crash dump to happen.
       </p>
 
     <section>
@@ -170,6 +173,60 @@
   </section>
 
   <section>
+    <marker id="scheduler"></marker>
+    <title>Scheduler information</title>
+    <p>Under the tag <em>=scheduler</em> information about the current state
+    and statistics of the schedulers in the runtime system is displayed.
+    On OSs that do allow instant suspension of other threads, the data within
+    this section will reflect what the runtime system looks like at the moment
+    when the crash happens.</p>
+    <p>The following fields can exist for a process:</p>
+    <taglist>
+      <tag><em>=scheduler:id</em></tag>
+      <item>Header, states the scheduler identifier.</item>
+      <tag><em>Scheduler Sleep Info Flags</em></tag>
+      <item>If empty the scheduler was doing some work.
+      If not empty the scheduler is either in some state of sleep,
+      or suspended. This entry is only present in a SMP enabled emulator</item>
+      <tag><em>Scheduler Sleep Info Aux Work</em></tag>
+      <item>If not empty, a scheduler internal auxiliary work is scheduled
+      to be done.</item>
+      <tag><em>Current Port</em></tag>
+      <item>The port identifier of the port that is currently being
+      executed by the scheduler.</item>
+      <tag><em>Current Process</em></tag>
+      <item>The process identifier of the process that is currently being
+      executed by the scheduler. If there is such a process this entry is
+      followed by the <em>State</em>,<em>Internal State</em>,
+      <em>Program Counter</em>, <em>CP</em> of that same process. See
+      <seealso marker="#processes">Process Information</seealso> for a
+      description what the different entries mean. Keep in mind that
+      this is a snapshot of what the entries are exactly when the crash
+      dump is starting to be generated. Therefore they will most likely
+      be different (and more telling) then the entries for the same
+      processes found in the <em>=proc</em> section. If there is no currently
+      running process, only the <em>Current Process</em> entry will be printed.
+      </item>
+      <tag><em>Current Process Limited Stack Trace</em></tag>
+      <item>This entry only shows up if there is a current process. It is very
+      similar to <seealso marker="#proc_data"><em>=proc_stack</em></seealso>,
+      except that only the function frames are printed (i.e. the stack variables
+      are omited). It is also limited to only print the top and bottom part
+      of the stack. If the stack is small (less that 512 slots) then the
+      entire stack will be printed. If not, an entry stating
+      <code>skipping ## slots</code> will be printed where ## is
+      replaced by the number of slots that has been skipped.</item>
+      <tag><em>Run Queue</em></tag>
+      <item>Displays statistics about how many processes and ports
+      of different priorities are scheduled on this scheduler.</item>
+      <tag><em>** crashed **</em></tag>
+      <item>This entry is normally not printed. It signifies that getting
+      the rest of the information about this scheduler failed for some reason.
+      </item>
+    </taglist>
+  </section>
+
+  <section>
     <marker id="memory"></marker>
     <title>Memory information</title>
     <p>Under the tag <em>=memory</em> you will find information similar
@@ -314,6 +371,9 @@
       <item>The number of live argument registers. The argument registers,
        if any are live, will follow. These may contain the arguments
        of the function if they are not yet moved to the stack.</item>
+       <item><em>Internal State</em></item>
+       <item>A more detailed internal represantation of the state of
+       this process.</item>
     </taglist>
     <p>See also the section about <seealso marker="#proc_data">process data</seealso>.</p>
   </section>
@@ -339,18 +399,38 @@
       <tag><em>Name</em></tag>
       <item>The name of the table, regardless of whether it is a
       <c><![CDATA[named_table]]></c> or not.</item>
-      <tag><em>Buckets</em></tag>
+      <tag><em>Hash table, Buckets</em></tag>
       <item>This occurs if the table is a hash table, i.e. if it is not an
       <c><![CDATA[ordered_set]]></c>.</item>
+      <tag><em>Hash table, Chain Length</em></tag>
+      <item>Only applicable for hash tables. Contains statistics about the
+      hash table, such as the max, min and avg chain length. Having a max much
+      larger than the avg, and a std dev much larger that
+      the expected std dev is a sign that the hashing of the terms is
+      behaving badly for some reason.</item>
       <tag><em>Ordered set (AVL tree), Elements</em></tag>
       <item>This occurs only if the table is an <c><![CDATA[ordered_set]]></c>. (The
        number of elements is the same as the number of objects in the
        table.)</item>
+      <tag><em>Fixed</em></tag>
+      <item>If the table is fixed using ets:safe_fixtable or some internal
+      mechanism.</item>
       <tag><em>Objects</em></tag>
       <item>The number of objects in the table</item>
       <tag><em>Words</em></tag>
       <item>The number of words (usually 4 bytes/word) allocated to data
        in the table.</item>
+      <tag><em>Type</em></tag>
+      <item>The type of the table, i.e. <c>set</c>, <c>bag</c>,
+      <c>dublicate_bag</c> or <c>ordered_set</c>.</item>
+      <tag><em>Compressed</em></tag>
+      <item>If this table was compressed.</item>
+      <tag><em>Protection</em></tag>
+      <item>The protection of this table.</item>
+      <tag><em>Write Concurrency</em></tag>
+      <item>If write_concurrency was enabled for this table.</item>
+      <tag><em>Read Concurrency</em></tag>
+      <item>If read_concurrency was enabled for this table.</item>
     </taglist>
   </section>
 
diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml
index f08467bfc6..98d05dc7de 100644
--- a/erts/doc/src/erl.xml
+++ b/erts/doc/src/erl.xml
@@ -495,24 +495,35 @@
           <c><![CDATA[werl]]></c>, not <c><![CDATA[erl]]></c> (<c><![CDATA[oldshell]]></c>). Note also that
           <c><![CDATA[Ctrl-Break]]></c> is used instead of <c><![CDATA[Ctrl-C]]></c> on Windows.</p>
       </item>
-      <tag><marker id="+c"><c><![CDATA[+c]]></c></marker></tag>
-      <item>
-        <p>Disable compensation for sudden changes of system time.</p>
-        <p>Normally, <c><![CDATA[erlang:now/0]]></c> will not immediately reflect
-          sudden changes in the system time, in order to keep timers
-          (including <c><![CDATA[receive-after]]></c>) working. Instead, the time
-          maintained by <c><![CDATA[erlang:now/0]]></c> is slowly adjusted towards
-          the new system time. (Slowly means in one percent adjustments;
-          if the time is off by one minute, the time will be adjusted
-          in 100 minutes.)</p>
-        <p>When the <c><![CDATA[+c]]></c> option is given, this slow adjustment
-          will not take place. Instead <c><![CDATA[erlang:now/0]]></c> will always
-          reflect the current system time. Note that timers are based
-          on <c><![CDATA[erlang:now/0]]></c>. If the system time jumps, timers
-          then time out at the wrong time.</p>
-        <p><em>NOTE</em>: You can check whether the adjustment is enabled or
-          disabled by calling
-	  <seealso marker="erlang#system_info_tolerant_timeofday">erlang:system_info(tolerant_timeofday)</seealso>.</p>
+      <tag><marker id="+c"><c><![CDATA[+c true | false]]></c></marker></tag>
+      <item>
+        <p>Enable or disable
+	<seealso marker="time_correction#Time_Correction">time correction</seealso>:</p>
+	<taglist>
+	  <tag><c>true</c></tag>
+	  <item><p>Enable time correction. This is the default if
+	  time correction is supported on the specific platform.</p></item>
+
+	  <tag><c>false</c></tag>
+	  <item><p>Disable time correction.</p></item>
+	</taglist>
+	<p>For backwards compatibility, the boolean value can be omitted.
+	This is interpreted as <c>+c false</c>.
+	</p>
+      </item>
+      <tag><marker id="+C_"><c><![CDATA[+C no_time_warp | single_time_warp | multi_time_warp]]></c></marker></tag>
+      <item>
+        <p>Set
+	<seealso marker="time_correction#Time_Warp_Modes">time warp mode</seealso>:
+	</p>
+	<taglist>
+	  <tag><c>no_time_warp</c></tag>
+	  <item><p><seealso marker="time_correction#No_Time_Warp_Mode">No Time Warp Mode</seealso> (the default)</p></item>
+	  <tag><c>single_time_warp</c></tag>
+	  <item><p><seealso marker="time_correction#Single_Time_Warp_Mode">Single Time Warp Mode</seealso></p></item>
+	  <tag><c>multi_time_warp</c></tag>
+	  <item><p><seealso marker="time_correction#Multi_Time_Warp_Mode">Multi Time Warp Mode</seealso></p></item>
+	</taglist>
       </item>
       <tag><c><![CDATA[+d]]></c></tag>
       <item>
@@ -1150,9 +1161,9 @@
           <tag><marker id="+secio"><c>+secio true|false</c></marker></tag>
           <item>
 	    <p>Enable or disable eager check I/O scheduling. The default
-	    is currently <c>false</c>, but will most likely be changed
-	    to <c>true</c> in OTP 18. The behaviour before this flag
-	    was introduced corresponds to <c>+secio false</c>.</p>
+	    is currently <c>true</c>. The default was changed from <c>false</c>
+	    to <c>true</c> as of erts version 7.0. The behaviour before this
+	    flag was introduced corresponds to <c>+secio false</c>.</p>
 	    <p>The flag effects when schedulers will check for I/O
 	    operations possible to execute, and when such I/O operations
 	    will execute. As the name of the parameter implies,
@@ -1311,13 +1322,14 @@
       <item>
         <p>Verbose.</p>
       </item>
-      <tag><c><![CDATA[+W w | i]]></c></tag>
+      <tag><c><![CDATA[+W w | i | e]]></c></tag>
       <item>
         <p>Sets the mapping of warning messages for <c><![CDATA[error_logger]]></c>.
           Messages sent to the error logger using one of the warning
-          routines can be mapped either to errors (default), warnings 
-          (<c><![CDATA[+W w]]></c>), or info reports (<c><![CDATA[+W i]]></c>). The current
-          mapping can be retrieved using
+          routines can be mapped either to errors (<c><![CDATA[+W e]]></c>),
+          warnings (<c><![CDATA[+W w]]></c>), or info reports
+          (<c><![CDATA[+W i]]></c>). The default is warnings.
+          The current mapping can be retrieved using
           <c><![CDATA[error_logger:warning_map/0]]></c>. See
           <seealso marker="kernel:error_logger#warning_map/0">error_logger(3)</seealso>
           for further information.</p>
diff --git a/erts/doc/src/erl_nif.xml b/erts/doc/src/erl_nif.xml
index 3de94be9ff..f64381c99d 100644
--- a/erts/doc/src/erl_nif.xml
+++ b/erts/doc/src/erl_nif.xml
@@ -66,34 +66,6 @@
       </list>
       </warning>
 
-     <p>The NIF concept is officially supported from R14B. NIF source code
-     written for earlier experimental versions might need adaption to run on R14B
-     or later versions:</p>
-     <list>
-       <item>No incompatible changes between <em>R14B</em> and R14A.</item>
-       <item>Incompatible changes between <em>R14A</em> and R13B04:
-       <list>
-	 <item>Environment argument removed for <c>enif_alloc</c>,
-	 <c>enif_realloc</c>, <c>enif_free</c>, <c>enif_alloc_binary</c>,
-	 <c>enif_realloc_binary</c>, <c>enif_release_binary</c>,
-	 <c>enif_alloc_resource</c>, <c>enif_release_resource</c>,
-	 <c>enif_is_identical</c> and <c>enif_compare</c>.</item>
-	 <item>Character encoding argument added to <c>enif_get_atom</c>
-	 and <c>enif_make_existing_atom</c>.</item>
-	 <item>Module argument added to <c>enif_open_resource_type</c>
-	 while changing name spaces of resource types from global to module local.</item>
-       </list>
-     </item>
-     <item>Incompatible changes between <em>R13B04</em> and R13B03:
-     <list>
-       <item>The function prototypes of the NIFs have  changed to expect <c>argc</c> and <c>argv</c>
-       arguments. The arity of a NIF is by that no longer limited to 3.</item>
-       <item><c>enif_get_data</c> renamed as <c>enif_priv_data</c>.</item>
-       <item><c>enif_make_string</c> got a third argument for character encoding.</item>
-     </list>
-     </item>
-    </list>
-
     <p>A minimal example of a NIF library can look like this:</p>
       <p/>
       <code type="none">
@@ -489,8 +461,9 @@ ok
         independent environment with all its terms is valid until you explicitly
         invalidates it with <seealso marker="#enif_free_env">enif_free_env</seealso>
         or <c>enif_send</c>.</p>
-        <p>All elements of a list/tuple must belong to the same environment as the
-        list/tuple itself. Terms can be copied between environments with
+        <p>All contained terms of a list/tuple/map must belong to the same
+	environment as the list/tuple/map itself. Terms can be copied between
+	environments with
         <seealso marker="#enif_make_copy">enif_make_copy</seealso>.</p>
       </item>
     <tag><marker id="ErlNifFunc"/>ErlNifFunc</tag>
@@ -592,11 +565,11 @@ typedef enum {
 
   <funcs>
     <func><name><ret>void *</ret><nametext>enif_alloc(size_t size)</nametext></name>
-      <fsummary>Allocate dynamic memory.</fsummary>
+      <fsummary>Allocate dynamic memory</fsummary>
       <desc><p>Allocate memory of <c>size</c> bytes. Return NULL if allocation failed.</p></desc>
     </func>
     <func><name><ret>int</ret><nametext>enif_alloc_binary(size_t size, ErlNifBinary* bin)</nametext></name>
-      <fsummary>Create a new binary.</fsummary>
+      <fsummary>Create a new binary</fsummary>
       <desc><p>Allocate a new binary of size <c>size</c>
       bytes. Initialize the structure pointed to by <c>bin</c> to
       refer to the allocated binary. The binary must either be released by 
@@ -623,7 +596,7 @@ typedef enum {
       <desc><p>Allocate a memory managed resource object of type <c>type</c> and size <c>size</c> bytes.</p></desc>
     </func>
     <func><name><ret>void</ret><nametext>enif_clear_env(ErlNifEnv* env)</nametext></name>
-      <fsummary>Clear an environment for reuse.</fsummary>
+      <fsummary>Clear an environment for reuse</fsummary>
       <desc><p>Free all terms in an environment and clear it for reuse. The environment must
       have been allocated with <seealso marker="#enif_alloc_env">enif_alloc_env</seealso>.
       </p></desc>
@@ -711,14 +684,14 @@ typedef enum {
               <c>size-1</c>.</p></desc>
     </func>
     <func><name><ret>int</ret><nametext>enif_get_atom_length(ErlNifEnv* env, ERL_NIF_TERM term, unsigned* len, ErlNifCharEncoding encode)</nametext></name>
-      <fsummary>Get the length of atom <c>term</c>.</fsummary>
+      <fsummary>Get the length of atom <c>term</c></fsummary>
       <desc><p>Set <c>*len</c> to the length (number of bytes excluding
       terminating null character) of the atom <c>term</c> with encoding
       <c>encode</c>. Return true on success or false if <c>term</c> is not an
       atom.</p></desc>
     </func>
     <func><name><ret>int</ret><nametext>enif_get_double(ErlNifEnv* env, ERL_NIF_TERM term, double* dp)</nametext></name>
-      <fsummary>Read a floating-point number term.</fsummary>
+      <fsummary>Read a floating-point number term</fsummary>
       <desc><p>Set <c>*dp</c> to the floating point value of
       <c>term</c>. Return true on success or false if <c>term</c> is not a float.</p></desc>
     </func>
@@ -747,17 +720,28 @@ typedef enum {
       non-empty list.</p></desc>
     </func>
     <func><name><ret>int</ret><nametext>enif_get_list_length(ErlNifEnv* env, ERL_NIF_TERM term, unsigned* len)</nametext></name>
-      <fsummary>Get the length of list <c>term</c>.</fsummary>
+      <fsummary>Get the length of list <c>term</c></fsummary>
       <desc><p>Set <c>*len</c> to the length of list <c>term</c> and return true,
       or return false if <c>term</c> is not a list.</p></desc>
     </func>
     <func><name><ret>int</ret><nametext>enif_get_long(ErlNifEnv* env, ERL_NIF_TERM term, long int* ip)</nametext></name>
-      <fsummary>Read an long integer term.</fsummary>
+      <fsummary>Read an long integer term</fsummary>
       <desc><p>Set <c>*ip</c> to the long integer value of <c>term</c> and
       return true, or return false if <c>term</c> is not an integer or is
       outside the bounds of type <c>long int</c>.</p></desc>
     </func>
-    <func><name><ret>int</ret><nametext>enif_get_resource(ErlNifEnv* env, ERL_NIF_TERM term, ErlNifResourceType* type, void** objp)</nametext></name>
+    <func><name><ret>int</ret><nametext>enif_get_map_size(ErlNifEnv* env, ERL_NIF_TERM term, size_t *size)</nametext></name>
+      <fsummary>Read the size of a map term</fsummary>
+      <desc><p>Set <c>*size</c> to the number of key-value pairs in the map <c>term</c> and
+      return true, or return false if <c>term</c> is not a map.</p></desc>
+    </func>
+    <func><name><ret>int</ret><nametext>enif_get_map_value(ErlNifEnv* env, ERL_NIF_TERM map, ERL_NIF_TERM key, ERL_NIF_TERM* value)</nametext></name>
+     <fsummary>Get the value of a key in a map</fsummary>
+      <desc><p>Set <c>*value</c> to the value associated with <c>key</c> in the
+      map <c>map</c> and return true. Return false if <c>map</c> is not a map
+      or if <c>map</c> does not contain <c>key</c>.</p></desc>
+    </func>
+   <func><name><ret>int</ret><nametext>enif_get_resource(ErlNifEnv* env, ERL_NIF_TERM term, ErlNifResourceType* type, void** objp)</nametext></name>
       <fsummary>Get the pointer to a resource object</fsummary>
       <desc><p>Set <c>*objp</c> to point to the resource object referred to by <c>term</c>.</p>
       <p>Return true on success or false if <c>term</c> is not a handle to a resource object
@@ -766,7 +750,7 @@ typedef enum {
     <func><name><ret>int</ret><nametext>enif_get_string(ErlNifEnv* env, 
                                 ERL_NIF_TERM list, char* buf, unsigned size,
                                 ErlNifCharEncoding encode)</nametext></name>
-      <fsummary>Get a C-string from a list.</fsummary>
+      <fsummary>Get a C-string from a list</fsummary>
       <desc><p>Write a null-terminated string, in the buffer pointed to by
               <c>buf</c> with size <c>size</c>, consisting of the characters
               in the string <c>list</c>. The characters are written using encoding
@@ -779,7 +763,7 @@ typedef enum {
               <c>size</c> is less than 1.</p></desc>
     </func>
     <func><name><ret>int</ret><nametext>enif_get_tuple(ErlNifEnv* env, ERL_NIF_TERM term, int* arity, const ERL_NIF_TERM** array)</nametext></name>
-      <fsummary>Inspect the elements of a tuple.</fsummary>
+      <fsummary>Inspect the elements of a tuple</fsummary>
       <desc><p>If <c>term</c> is a tuple, set <c>*array</c> to point
       to an array containing the elements of the tuple and set
       <c>*arity</c> to the number of elements. Note that the array
@@ -789,23 +773,36 @@ typedef enum {
       tuple.</p></desc>
     </func>
     <func><name><ret>int</ret><nametext>enif_get_uint(ErlNifEnv* env, ERL_NIF_TERM term, unsigned int* ip)</nametext></name>
-      <fsummary>Read an unsigned integer term.</fsummary>
+      <fsummary>Read an unsigned integer term</fsummary>
       <desc><p>Set <c>*ip</c> to the unsigned integer value of <c>term</c> and
       return true, or return false if <c>term</c> is not an unsigned integer or
       is outside the bounds of type <c>unsigned int</c>.</p></desc>
     </func>
     <func><name><ret>int</ret><nametext>enif_get_uint64(ErlNifEnv* env, ERL_NIF_TERM term, ErlNifUInt64* ip)</nametext></name>
-      <fsummary>Read an unsigned 64-bit integer term.</fsummary>
+      <fsummary>Read an unsigned 64-bit integer term</fsummary>
       <desc><p>Set <c>*ip</c> to the unsigned integer value of <c>term</c> and
       return true, or return false if <c>term</c> is not an unsigned integer or
       is outside the bounds of an unsigned 64-bit integer.</p></desc>
     </func>
     <func><name><ret>int</ret><nametext>enif_get_ulong(ErlNifEnv* env, ERL_NIF_TERM term, unsigned long* ip)</nametext></name>
-      <fsummary>Read an unsigned integer term.</fsummary>
+      <fsummary>Read an unsigned integer term</fsummary>
       <desc><p>Set <c>*ip</c> to the unsigned long integer value of <c>term</c>
       and return true, or return false if <c>term</c> is not an unsigned integer or is
       outside the bounds of type <c>unsigned long</c>.</p></desc>
     </func>
+    <func><name><ret>int</ret><nametext>enif_has_pending_exception(ErlNifEnv* env, ERL_NIF_TERM* reason)</nametext></name>
+      <fsummary>Check if an exception has been raised</fsummary>
+      <desc><p>Return true if a pending exception is associated
+      with the environment <c>env</c>. If <c>reason</c> is a null pointer, ignore it.
+      Otherwise, if there's a pending exception associated with <c>env</c>, set the ERL_NIF_TERM
+      to which <c>reason</c> points to the value of the exception's term. For example, if
+      <seealso marker="#enif_make_badarg">enif_make_badarg</seealso> is called to set a
+      pending <c>badarg</c> exception, a subsequent call to <c>enif_has_pending_exception(env, &amp;reason)</c>
+      will set <c>reason</c> to the atom <c>badarg</c>, then return true.</p>
+      <p>See also: <seealso marker="#enif_make_badarg">enif_make_badarg</seealso>
+      and <seealso marker="#enif_raise_exception">enif_raise_exception</seealso>.</p>
+      </desc>
+    </func>
     <func><name><ret>int</ret><nametext>enif_inspect_binary(ErlNifEnv* env, ERL_NIF_TERM bin_term, ErlNifBinary* bin)</nametext></name>
       <fsummary>Inspect the content of a binary</fsummary>
       <desc><p>Initialize the structure pointed to by <c>bin</c> with 
@@ -839,6 +836,10 @@ typedef enum {
       <fsummary>Determine if a term is an exception</fsummary>
       <desc><p>Return true if <c>term</c> is an exception.</p></desc>
     </func>
+    <func><name><ret>int</ret><nametext>enif_is_map(ErlNifEnv* env, ERL_NIF_TERM term)</nametext></name>
+      <fsummary>Determine if a term is a map</fsummary>
+      <desc><p>Return true if <c>term</c> is a map, false otherwise.</p></desc>
+    </func>
     <func><name><ret>int</ret><nametext>enif_is_number(ErlNifEnv* env, ERL_NIF_TERM term)</nametext></name>
       <fsummary>Determine if a term is a number (integer or float)</fsummary>
       <desc><p>Return true if <c>term</c> is a number.</p></desc>
@@ -898,40 +899,58 @@ typedef enum {
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_atom(ErlNifEnv* env, const char* name)</nametext></name>
       <fsummary>Create an atom term</fsummary>
       <desc><p>Create an atom term from the null-terminated C-string <c>name</c>
-      with iso-latin-1 encoding.</p></desc>
+      with iso-latin-1 encoding. If the length of <c>name</c> exceeds the maximum length
+      allowed for an atom (255 characters), <c>enif_make_atom</c> invokes
+      <seealso marker="#enif_make_badarg">enif_make_badarg</seealso>.
+      </p></desc>
     </func>
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_atom_len(ErlNifEnv* env, const char* name, size_t len)</nametext></name>
       <fsummary>Create an atom term</fsummary>
       <desc><p>Create an atom term from the string <c>name</c> with length <c>len</c>.
-      Null-characters are treated as any other characters.</p></desc>
+      Null-characters are treated as any other characters. If <c>len</c> is greater than the maximum length
+      allowed for an atom (255 characters), <c>enif_make_atom</c> invokes
+      <seealso marker="#enif_make_badarg">enif_make_badarg</seealso>.
+      </p></desc>
     </func>
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_badarg(ErlNifEnv* env)</nametext></name>
-      <fsummary>Make a badarg exception.</fsummary>
-      <desc><p>Make a badarg exception to be returned from a NIF, and set
-      an associated exception reason in <c>env</c>. If
-      <c>enif_make_badarg</c> is called, the term it returns <em>must</em>
-      be returned from the function that called it. No other return value
-      is allowed. Also, the term returned from <c>enif_make_badarg</c> may
-      be passed only to
-      <seealso marker="#enif_is_exception">enif_is_exception</seealso> and
-      not to any other NIF API function.</p></desc>
+      <fsummary>Make a badarg exception</fsummary>
+      <desc><p>Make a badarg exception to be returned from a NIF, and associate
+      it with the environment <c>env</c>. Once a NIF or any function
+      it calls invokes <c>enif_make_badarg</c>, the runtime ensures that a
+      <c>badarg</c> exception is raised when the NIF returns, even if the NIF
+      attempts to return a non-exception term instead.
+      The return value from <c>enif_make_badarg</c> may be used only as the
+      return value from the NIF that invoked it (directly or indirectly)
+      or be passed to
+      <seealso marker="#enif_is_exception">enif_is_exception</seealso>, but
+      not to any other NIF API function.</p>
+      <p>See also: <seealso marker="#enif_has_pending_exception">enif_has_pending_exception</seealso>
+      and <seealso marker="#enif_raise_exception">enif_raise_exception</seealso>
+      </p>
+      <note><p>In earlier versions (older than erts-7.0, OTP 18) the return value
+      from <c>enif_make_badarg</c> had to be returned from the NIF. This
+      requirement is now lifted as the return value from the NIF is ignored
+      if <c>enif_make_badarg</c> has been invoked.</p></note></desc>
     </func>
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_binary(ErlNifEnv* env, ErlNifBinary* bin)</nametext></name>
-      <fsummary>Make a binary term.</fsummary>
+      <fsummary>Make a binary term</fsummary>
       <desc><p>Make a binary term from <c>bin</c>. Any ownership of 
               the binary data will be transferred to the created term and
               <c>bin</c> should be considered read-only for the rest of the NIF
               call and then as released.</p></desc>
     </func>
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_copy(ErlNifEnv* dst_env, ERL_NIF_TERM src_term)</nametext></name>
-      <fsummary>Make a copy of a term.</fsummary>
+      <fsummary>Make a copy of a term</fsummary>
       <desc><p>Make a copy of term <c>src_term</c>. The copy will be created in
       environment <c>dst_env</c>. The source term may be located in any
       environment.</p></desc>        
     </func>
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_double(ErlNifEnv* env, double d)</nametext></name>
       <fsummary>Create a floating-point term</fsummary>
-      <desc><p>Create a floating-point term from a <c>double</c>.</p></desc>
+      <desc><p>Create a floating-point term from a <c>double</c>. If the <c>double</c> argument is
+      not finite or is NaN, <c>enif_make_double</c> invokes
+      <seealso marker="#enif_make_badarg">enif_make_badarg</seealso>.
+      </p></desc>
     </func>
     <func><name><ret>int</ret><nametext>enif_make_existing_atom(ErlNifEnv* env, const char* name, ERL_NIF_TERM* atom, ErlNifCharEncoding encode)</nametext></name>
       <fsummary>Create an existing atom term</fsummary>
@@ -939,7 +958,9 @@ typedef enum {
       the null-terminated C-string <c>name</c> with encoding
       <seealso marker="#ErlNifCharEncoding">encode</seealso>. If the atom
       already exists store the term in <c>*atom</c> and return true, otherwise
-      return false.</p></desc>
+      return false. If the length of <c>name</c> exceeds the maximum length
+      allowed for an atom (255 characters), <c>enif_make_existing_atom</c>
+      returns false.</p></desc>
     </func>
     <func><name><ret>int</ret><nametext>enif_make_existing_atom_len(ErlNifEnv* env, const char* name, size_t len, ERL_NIF_TERM* atom, ErlNifCharEncoding encoding)</nametext></name>
       <fsummary>Create an existing atom term</fsummary>
@@ -947,7 +968,9 @@ typedef enum {
       string <c>name</c> with length <c>len</c> and encoding
       <seealso marker="#ErlNifCharEncoding">encode</seealso>. Null-characters
       are treated as any other characters. If the atom already exists store the term
-      in <c>*atom</c> and return true, otherwise return false.</p></desc>
+      in <c>*atom</c> and return true, otherwise return false. If <c>len</c> is greater
+      than the maximum length allowed for an atom (255 characters),
+      <c>enif_make_existing_atom_len</c> returns false.</p></desc>
     </func>
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_int(ErlNifEnv* env, int i)</nametext></name>
       <fsummary>Create an integer term</fsummary>
@@ -958,7 +981,7 @@ typedef enum {
       <desc><p>Create an integer term from a signed 64-bit integer.</p></desc>
     </func>
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_list(ErlNifEnv* env, unsigned cnt, ...)</nametext></name>
-      <fsummary>Create a list term.</fsummary>
+      <fsummary>Create a list term</fsummary>
       <desc><p>Create an ordinary list term of length <c>cnt</c>. Expects
       <c>cnt</c> number of arguments (after <c>cnt</c>) of type ERL_NIF_TERM as the
       elements of the list. An empty list is returned if <c>cnt</c> is 0.</p></desc>
@@ -972,28 +995,21 @@ typedef enum {
     <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_list7(ErlNifEnv* env, ERL_NIF_TERM e1, ..., ERL_NIF_TERM e7)</nametext></name>
     <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_list8(ErlNifEnv* env, ERL_NIF_TERM e1, ..., ERL_NIF_TERM e8)</nametext></name>
     <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_list9(ErlNifEnv* env, ERL_NIF_TERM e1, ..., ERL_NIF_TERM e9)</nametext></name>
-      <fsummary>Create a list term.</fsummary>
+      <fsummary>Create a list term</fsummary>
       <desc><p>Create an ordinary list term with length indicated by the
       function name. Prefer these functions (macros) over the variadic
       <c>enif_make_list</c>  to get a compile time error if the number of
       arguments does not match.</p></desc>
     </func>
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_list_cell(ErlNifEnv* env, ERL_NIF_TERM head, ERL_NIF_TERM tail)</nametext></name>
-      <fsummary>Create a list cell.</fsummary>
+      <fsummary>Create a list cell</fsummary>
       <desc><p>Create a list cell <c>[head | tail]</c>.</p></desc>
     </func>
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_list_from_array(ErlNifEnv* env, const ERL_NIF_TERM arr[], unsigned cnt)</nametext></name>
-      <fsummary>Create a list term from an array.</fsummary>
+      <fsummary>Create a list term from an array</fsummary>
       <desc><p>Create an ordinary list containing the elements of array <c>arr</c>
       of length <c>cnt</c>. An empty list is returned if <c>cnt</c> is 0.</p></desc>
     </func>
-    <func><name><ret>int</ret><nametext>enif_make_reverse_list(ErlNifEnv* env, ERL_NIF_TERM term, ERL_NIF_TERM *list)</nametext></name>
-      <fsummary>Create the reverse list of the list <c>term</c>.</fsummary>
-      <desc><p>Set <c>*list</c> to the reverse list of the list <c>term</c> and return true,
-      or return false if <c>term</c> is not a list. This function should only be used on
-      short lists as a copy will be created of the list which will not be released until after the
-      nif returns.</p></desc>
-    </func>
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_long(ErlNifEnv* env, long int i)</nametext></name>
       <fsummary>Create an integer term from a long int</fsummary>
       <desc><p>Create an integer term from a <c>long int</c>.</p></desc>
@@ -1008,12 +1024,42 @@ typedef enum {
       reallocated.</p><p>Return a pointer to the raw binary data and set
       <c>*termp</c> to the binary term.</p></desc>
     </func>
+    <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_new_map(ErlNifEnv* env)</nametext></name>
+      <fsummary>Make an empty map term</fsummary>
+      <desc><p>Make an empty map term.</p></desc>
+    </func>
+    <func><name><ret>int</ret><nametext>enif_make_map_put(ErlNifEnv* env, ERL_NIF_TERM map_in, ERL_NIF_TERM key, ERL_NIF_TERM value, ERL_NIF_TERM* map_out)</nametext></name>
+      <fsummary>Insert key-value pair in map</fsummary>
+      <desc><p>Make a copy of map <c>map_in</c> and insert <c>key</c> with
+      <c>value</c>. If <c>key</c> already exists in <c>map_in</c>, the old
+      associated value is replaced by <c>value</c>. If successful set
+      <c>*map_out</c> to the new map and return true. Return false if
+      <c>map_in</c> is not a map.</p>
+      <p>The <c>map_in</c> term must belong to the environment <c>env</c>.</p></desc>
+    </func>
+    <func><name><ret>int</ret><nametext>enif_make_map_update(ErlNifEnv* env, ERL_NIF_TERM map_in, ERL_NIF_TERM key, ERL_NIF_TERM new_value, ERL_NIF_TERM* map_out)</nametext></name>
+      <fsummary>Replace value for key in map</fsummary>
+      <desc><p>Make a copy of map <c>map_in</c> and replace the old associated
+      value for <c>key</c> with <c>new_value</c>. If successful set
+      <c>*map_out</c> to the new map and return true. Return false if
+      <c>map_in</c> is not a map or if it does no contain <c>key</c>.</p>
+      <p>The <c>map_in</c> term must belong to the environment <c>env</c>.</p></desc>
+    </func>
+    <func><name><ret>int</ret><nametext>enif_make_map_remove(ErlNifEnv* env, ERL_NIF_TERM map_in, ERL_NIF_TERM key, ERL_NIF_TERM* map_out)</nametext></name>
+      <fsummary>Remove key from map</fsummary>
+      <desc><p>If map <c>map_in</c> contains <c>key</c>, make a copy of
+      <c>map_in</c> in <c>*map_out</c> and remove <c>key</c> and associated
+      value. If map <c>map_in</c> does not contain <c>key</c>, set
+      <c>*map_out</c> to <c>map_in</c>. Return true for success or false if
+      <c>map_in</c> is not a map.</p>
+      <p>The <c>map_in</c> term must belong to the environment <c>env</c>.</p></desc>
+    </func>
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_pid(ErlNifEnv* env, const ErlNifPid* pid)</nametext></name>
       <fsummary>Make a pid term</fsummary>
       <desc><p>Make a pid term from <c>*pid</c>.</p></desc>
     </func>
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_ref(ErlNifEnv* env)</nametext></name>
-      <fsummary>Create a reference.</fsummary>
+      <fsummary>Create a reference</fsummary>
       <desc><p>Create a reference like <seealso marker="erlang#make_ref-0">erlang:make_ref/0</seealso>.</p></desc>
     </func>
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_resource(ErlNifEnv* env, void* obj)</nametext></name>
@@ -1051,20 +1097,28 @@ typedef enum {
       <seealso marker="#enif_release_resource">enif_release_resource</seealso>.</p>
       </desc>
     </func>
+    <func><name><ret>int</ret><nametext>enif_make_reverse_list(ErlNifEnv* env, ERL_NIF_TERM list_in, ERL_NIF_TERM *list_out)</nametext></name>
+      <fsummary>Create the reverse of a list</fsummary>
+      <desc><p>Set <c>*list_out</c> to the reverse list of the list <c>list_in</c> and return true,
+      or return false if <c>list_in</c> is not a list. This function should only be used on
+      short lists as a copy will be created of the list which will not be released until after the
+      nif returns.</p>
+      <p>The <c>list_in</c> term must belong to the environment <c>env</c>.</p></desc>
+    </func>
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_string(ErlNifEnv* env, const char* string, ErlNifCharEncoding encoding)</nametext></name>
-      <fsummary>Create a string.</fsummary>
+      <fsummary>Create a string</fsummary>
       <desc><p>Create a list containing the characters of the
       null-terminated string <c>string</c> with encoding <seealso marker="#ErlNifCharEncoding">encoding</seealso>.</p></desc>
     </func>
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_string_len(ErlNifEnv* env, const char* string, size_t len, ErlNifCharEncoding encoding)</nametext></name>
-      <fsummary>Create a string.</fsummary>
+      <fsummary>Create a string</fsummary>
       <desc><p>Create a list containing the characters of the string <c>string</c> with
       length <c>len</c> and encoding <seealso marker="#ErlNifCharEncoding">encoding</seealso>.
       Null-characters are treated as any other characters.</p></desc>
     </func>
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_sub_binary(ErlNifEnv* 
       env, ERL_NIF_TERM bin_term, size_t pos, size_t size)</nametext></name>
-      <fsummary>Make a subbinary term.</fsummary>
+      <fsummary>Make a subbinary term</fsummary>
       <desc><p>Make a subbinary of binary <c>bin_term</c>, starting at 
               zero-based position <c>pos</c> with a length of <c>size</c> bytes. 
               <c>bin_term</c> must be a binary or bitstring and
@@ -1072,7 +1126,7 @@ typedef enum {
               bytes in <c>bin_term</c>.</p></desc>
     </func>
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple(ErlNifEnv* env, unsigned cnt, ...)</nametext></name>
-      <fsummary>Create a tuple term.</fsummary>
+      <fsummary>Create a tuple term</fsummary>
       <desc><p>Create a tuple term of arity <c>cnt</c>. Expects
       <c>cnt</c> number of arguments (after <c>cnt</c>) of type ERL_NIF_TERM as the
       elements of the tuple.</p></desc>
@@ -1086,14 +1140,14 @@ typedef enum {
     <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple7(ErlNifEnv* env, ERL_NIF_TERM e1, ..., ERL_NIF_TERM e7)</nametext></name>
     <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple8(ErlNifEnv* env, ERL_NIF_TERM e1, ..., ERL_NIF_TERM e8)</nametext></name>
     <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple9(ErlNifEnv* env, ERL_NIF_TERM e1, ..., ERL_NIF_TERM e9)</nametext></name>
-      <fsummary>Create a tuple term.</fsummary>
+      <fsummary>Create a tuple term</fsummary>
       <desc><p>Create a tuple term with length indicated by the
       function name. Prefer these functions (macros) over the variadic
       <c>enif_make_tuple</c>  to get a compile time error if the number of
       arguments does not match.</p></desc>
     </func>
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple_from_array(ErlNifEnv* env, const ERL_NIF_TERM arr[], unsigned cnt)</nametext></name>
-      <fsummary>Create a tuple term from an array.</fsummary>
+      <fsummary>Create a tuple term from an array</fsummary>
       <desc><p>Create a tuple containing the elements of array <c>arr</c>
       of length <c>cnt</c>.</p></desc>
     </func>
@@ -1109,6 +1163,72 @@ typedef enum {
       <fsummary>Create an integer term from an unsigned long int</fsummary>
       <desc><p>Create an integer term from an <c>unsigned long int</c>.</p></desc>
     </func>
+    <func><name><ret>int</ret><nametext>enif_map_iterator_create(ErlNifEnv *env, ERL_NIF_TERM map, ErlNifMapIterator *iter, ErlNifMapIteratorEntry entry)</nametext></name>
+      <fsummary>Create a map iterator</fsummary>
+      <desc><p>Create an iterator for the map <c>map</c> by initializing the
+      structure pointed to by <c>iter</c>. The <c>entry</c> argument determines
+      the start position of the iterator: <c>ERL_NIF_MAP_ITERATOR_FIRST</c> or
+      <c>ERL_NIF_MAP_ITERATOR_LAST</c>. Return true on success or false if
+      <c>map</c> is not a map.</p>
+      <p>A map iterator is only useful during the lifetime of the environment
+      <c>env</c> that the <c>map</c> belongs to. The iterator must be destroyed by
+      calling <seealso marker="#enif_map_iterator_destroy">
+      enif_map_iterator_destroy</seealso>.</p>
+      <code type="none">
+ERL_NIF_TERM key, value;
+ErlNifMapIterator iter;
+enif_map_iterator_create(env, my_map, ERL_NIF_MAP_ITERATOR_FIRST);
+
+while (enif_map_iterator_get_pair(env, &amp;iter, &amp;key, &amp;value)) {
+    do_something(key,value);
+    enif_map_iterator_next(env, &amp;iter);
+}
+enif_map_iterator_destroy(env, &amp;iter);
+      </code>
+     <note><p>The key-value pairs of a map have no defined iteration
+     order. The only guarantee is that the iteration order of a single map
+     instance is preserved during the lifetime of the environment that the map
+     belongs to.</p>
+    </note>
+      </desc>
+    </func>
+    <func><name><ret>void</ret><nametext>enif_map_iterator_destroy(ErlNifEnv *env, ErlNifMapIterator *iter)</nametext></name>
+      <fsummary>Destroy a map iterator</fsummary>
+      <desc><p>Destroy a map iterator created by
+      <seealso marker="#enif_map_iterator_create">enif_map_iterator_create</seealso>.
+      </p></desc>
+    </func>
+    <func><name><ret>int</ret><nametext>enif_map_iterator_get_pair(ErlNifEnv *env, ErlNifMapIterator *iter, ERL_NIF_TERM *key, ERL_NIF_TERM *value)</nametext></name>
+      <fsummary>Get key and value at current map iterator position</fsummary>
+      <desc><p>Get key and value terms at current map iterator position.
+      On success set <c>*key</c> and <c>*value</c> and return true.
+      Return false if the iterator is positioned at head (before first entry)
+      or tail (beyond last entry).</p></desc>
+    </func>
+    <func><name><ret>int</ret><nametext>enif_map_iterator_is_head(ErlNifEnv *env, ErlNifMapIterator *iter)</nametext></name>
+      <fsummary>Check if map iterator is positioned before first</fsummary>
+      <desc><p>Return true if map iterator <c>iter</c> is positioned
+      before first entry.</p></desc>
+    </func>
+    <func><name><ret>int</ret><nametext>enif_map_iterator_is_tail(ErlNifEnv *env, ErlNifMapIterator *iter)</nametext></name>
+      <fsummary>Check if map iterator is positioned after last</fsummary>
+      <desc><p>Return true if map iterator <c>iter</c> is positioned
+      after last entry.</p></desc>
+    </func>
+    <func><name><ret>int</ret><nametext>enif_map_iterator_next(ErlNifEnv *env, ErlNifMapIterator *iter)</nametext></name>
+      <fsummary>Increment map iterator to point to next entry</fsummary>
+      <desc><p>Increment map iterator to point to next key-value entry.
+      Return true if the iterator is now positioned at a valid key-value entry,
+      or false if the iterator is positioned at the tail (beyond the last
+      entry).</p></desc>
+    </func>
+    <func><name><ret>int</ret><nametext>enif_map_iterator_prev(ErlNifEnv *env, ErlNifMapIterator *iter)</nametext></name>
+      <fsummary>Decrement map iterator to point to previous entry</fsummary>
+      <desc><p>Decrement map iterator to point to previous key-value entry.
+      Return true if the iterator is now positioned at a valid key-value entry,
+      or false if the iterator is positioned at the head (before the first
+      entry).</p></desc>
+    </func>
     <func><name><ret>ErlNifMutex *</ret><nametext>enif_mutex_create(char *name)</nametext></name>
     <fsummary></fsummary>
     <desc><p>Same as <seealso marker="erl_driver#erl_drv_mutex_create">erl_drv_mutex_create</seealso>.
@@ -1169,19 +1289,32 @@ typedef enum {
       <c>reload</c> or <c>upgrade</c>.</p>
       <p>Was previously named <c>enif_get_data</c>.</p></desc>
     </func>
+    <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_raise_exception(ErlNifEnv* env, ERL_NIF_TERM reason)</nametext></name>
+      <fsummary>Raise a NIF error exception</fsummary>
+      <desc><p>Create an error exception with the term <c>reason</c> to be returned from a NIF,
+      and associate it with the environment <c>env</c>. Once a NIF or any function it calls
+      invokes <c>enif_raise_exception</c>, the runtime ensures that the exception it creates
+      is raised when the NIF returns, even if the NIF attempts to return a non-exception
+      term instead. The return value from <c>enif_raise_exception</c> may be used only as
+      the return value from the NIF that invoked it (directly or indirectly) or be passed
+      to <seealso marker="#enif_is_exception">enif_is_exception</seealso>, but
+      not to any other NIF API function.</p>
+      <p>See also: <seealso marker="#enif_has_pending_exception">enif_has_pending_exception</seealso>
+      and <seealso marker="#enif_make_badarg">enif_make_badarg</seealso>.</p></desc>
+    </func>
     <func><name><ret>int</ret><nametext>enif_realloc_binary(ErlNifBinary* bin, size_t size)</nametext></name>
-      <fsummary>Change the size of a binary.</fsummary>
+      <fsummary>Change the size of a binary</fsummary>
       <desc><p>Change the size of a binary <c>bin</c>. The source binary
       may be read-only, in which case it will be left untouched and
       a mutable copy is allocated and assigned to <c>*bin</c>. Return true on success,
       false if memory allocation failed.</p></desc>
     </func>
     <func><name><ret>void</ret><nametext>enif_release_binary(ErlNifBinary* bin)</nametext></name>
-      <fsummary>Release a binary.</fsummary>
+      <fsummary>Release a binary</fsummary>
       <desc><p>Release a binary obtained from <c>enif_alloc_binary</c>.</p></desc>
     </func>
     <func><name><ret>void</ret><nametext>enif_release_resource(void* obj)</nametext></name>
-      <fsummary>Release a resource object.</fsummary>
+      <fsummary>Release a resource object</fsummary>
       <desc><p>Remove a reference to resource object <c>obj</c>obtained from
       <seealso marker="#enif_alloc_resource">enif_alloc_resource</seealso>.
       The resource object will be destructed when the last reference is removed.
@@ -1257,12 +1390,12 @@ typedef enum {
       </desc>
     </func>
     <func><name><ret>ErlNifPid *</ret><nametext>enif_self(ErlNifEnv* caller_env, ErlNifPid* pid)</nametext></name>
-      <fsummary>Get the pid of the calling process.</fsummary>
+      <fsummary>Get the pid of the calling process</fsummary>
       <desc><p>Initialize the pid variable <c>*pid</c> to represent the
       calling process. Return <c>pid</c>.</p></desc>
     </func>
     <func><name><ret>int</ret><nametext>enif_send(ErlNifEnv* env, ErlNifPid* to_pid, ErlNifEnv* msg_env, ERL_NIF_TERM msg)</nametext></name>
-      <fsummary>Send a message to a process.</fsummary>
+      <fsummary>Send a message to a process</fsummary>
       <desc><p>Send a message to a process.</p>
       <taglist>
         <tag><c>env</c></tag>
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index 0e5909a52d..3fea64cef5 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -58,7 +58,78 @@
     </datatype>
     <datatype>
       <name name="timestamp"></name>
-      <desc><p>See <seealso marker="#now/0">now/0</seealso>.</p>
+      <desc><p>See <seealso marker="#timestamp/0">erlang:timestamp/0</seealso>.</p>
+      </desc>
+    </datatype>
+    <marker id="type_time_unit"/>
+    <datatype>
+      <name name="time_unit"></name>
+      <desc><p>Currently supported time unit representations:</p>
+        <taglist>
+	  <tag><c>PartsPerSecond :: integer() >= 1</c></tag>
+	  <item><p>Time unit expressed in parts per second. That is,
+	  the time unit equals <c>1/PartsPerSecond</c> second.</p></item>
+
+	  <tag><c>seconds</c></tag>
+	  <item><p>Symbolic representation of the time unit
+	  represented by the integer <c>1</c>.</p></item>
+
+	  <tag><c>milli_seconds</c></tag>
+	  <item><p>Symbolic representation of the time unit
+	  represented by the integer <c>1000</c>.</p></item>
+
+	  <tag><c>micro_seconds</c></tag>
+	  <item><p>Symbolic representation of the time unit
+	  represented by the integer <c>1000000</c>.</p></item>
+
+	  <tag><c>nano_seconds</c></tag>
+	  <item><p>Symbolic representation of the time unit
+	  represented by the integer <c>1000000000</c>.</p></item>
+
+	  <tag><c>native</c></tag>
+	  <item><p>Symbolic representation of the native time unit
+	  used by the Erlang runtime system.</p>
+
+	  <p>The <c>native</c> time unit is determined at
+	  runtime system start, and will remain the same until
+	  the runtime system terminates. If a runtime system
+	  is stopped and then started again (even on the same
+	  machine), the <c>native</c> time unit of the new
+	  runtime system instance may differ from the
+	  <c>native</c> time unit of the old runtime system
+	  instance.</p>
+
+	  <p>One can get an approximation of the <c>native</c>
+	  time unit by calling <c>erlang:convert_time_unit(1,
+	  seconds, native)</c>. The result equals the number
+	  of whole <c>native</c> time units per second. In case
+	  the number of <c>native</c> time units per second does
+	  not add up to a whole number, the result will be
+	  rounded downwards.</p>
+
+	  <note>
+	    <p>The value of the <c>native</c> time unit gives
+	    you more or less no information at all about the
+	    quality of time values. It sets a limit for
+	    the
+	    <seealso marker="time_correction#Time_Resolution">resolution</seealso>
+	    as well as for the
+	    <seealso marker="time_correction#Time_Precision">precision</seealso>
+	    of time values,
+	    but it gives absolutely no information at all about the
+	    <seealso marker="time_correction#Time_Accuracy">accuracy</seealso>
+	    of time values. The resolution of the <c>native</c> time
+	    unit and the resolution of time values may differ
+	    significantly.</p>
+	  </note>
+	  </item>
+
+	</taglist>
+
+	<p>The <c>time_unit/0</c> type may be extended. Use
+	<seealso marker="#convert_time_unit/3"><c>erlang:convert_time_unit/3</c></seealso>
+	in order to convert time values between time units.</p>
+
       </desc>
     </datatype>
   </datatypes>
@@ -465,29 +536,108 @@
       </desc>
     </func>
     <func>
-      <name name="cancel_timer" arity="1"/>
+      <name name="cancel_timer" arity="2"/>
       <fsummary>Cancel a timer</fsummary>
       <desc>
-        <p>Cancels a timer, where <c><anno>TimerRef</anno></c> was returned by
-          either
-          <seealso marker="#send_after/3">erlang:send_after/3</seealso>
-          or
-          <seealso marker="#start_timer/3">erlang:start_timer/3</seealso>.
-          If the timer is there to be removed, the function returns
-          the time in milliseconds left until the timer would have expired,
-          otherwise <c>false</c> (which means that <c><anno>TimerRef</anno></c> was
-          never a timer, that it has already been cancelled, or that it
-          has already delivered its message).</p>
+        <p>
+	  Cancels a timer that has been created by either
+	  <seealso marker="#start_timer/4"><c>erlang:start_timer()</c></seealso>,
+	  or <seealso marker="#send_after/4"><c>erlang:send_after()</c></seealso>.
+	  <c><anno>TimerRef</anno></c> identifies the timer, and
+	  was returned by the BIF that created the timer.
+	</p>
+	<p>Currently available <c><anno>Option</anno></c>s:</p>
+        <taglist>
+          <tag><c>{async, Async}</c></tag>
+          <item>
+	    <p>
+	      Asynchronous request for cancellation. <c>Async</c>
+	      defaults to <c>false</c> which will cause the
+	      cancellation to be performed synchronously. When
+	      <c>Async</c> is set to <c>true</c>, the cancel
+	      operation will be performed asynchronously. That is,
+	      <c>erlang:cancel_timer()</c> will send an asynchronous
+	      request for cancellation to the timer service that
+	      manages the timer, and then return <c>ok</c>.
+	  </p>
+	  </item>
+          <tag><c>{info, Info}</c></tag>
+          <item>
+	    <p>
+	      Request information about the <c><anno>Result</anno></c>
+	      of the cancellation. <c>Info</c> defaults to <c>true</c>
+	      which means that the <c><anno>Result</anno></c> will
+	      be given. When <c>Info</c> is set to <c>false</c>, no
+	      information about the result of the cancellation
+	      will be given. When the operation is performed</p>
+              <taglist>
+		<tag>synchronously</tag>
+		<item>
+		  <p>
+		    If <c>Info</c> is <c>true</c>, the <c>Result</c> will
+		    returned by <c>erlang:cancel_timer()</c>; otherwise,
+		    <c>ok</c> will be returned.
+		  </p>
+		</item>
+		<tag>asynchronously</tag>
+		<item>
+		  <p>
+		    If <c>Info</c> is <c>true</c>, a message on the form
+		    <c>{cancel_timer, <anno>TimerRef</anno>,
+		    <anno>Result</anno>}</c> will be sent to the
+		    caller of <c>erlang:cancel_timer()</c> when the
+		    cancellation operation has been performed; otherwise,
+		    no message will be sent.
+		  </p>
+		</item>
+            </taglist>
+	  </item>
+        </taglist>
+	<p>
+	  More <c><anno>Option</anno></c>s may be added in the future.
+	</p>
+	<p>
+	  When the <c><anno>Result</anno></c> equals <c>false</c>, a
+	  timer corresponding to <c><anno>TimerRef</anno></c> could not
+	  be found. This can be either because the timer had expired,
+	  already had been canceled, or because <c><anno>TimerRef</anno></c>
+	  never has corresponded to a timer. If the timer has expired,
+	  the timeout message has been sent, but it does not tell you
+	  whether or not it has arrived at its destination yet. When the
+	  <c><anno>Result</anno></c> is an integer, it represents the
+	  time in milli-seconds left until the timer will expire.
+	</p>
+	<note>
+	  <p>
+	    The timer service that manages the timer may be co-located
+	    with another scheduler than the scheduler that the calling
+	    process is executing on. If this is the case, communication
+	    with the timer service will take much longer time than if it
+	    is located locally. If the calling process is in critical
+	    path, and can do other things while waiting for the result
+	    of this operation, or is not interested in the result of
+	    the operation, you want to use the <c>{async, true}</c>
+	    option. If using the <c>{async, false}</c> option, the calling
+	    process will be blocked until the operation has been
+	    performed.
+	  </p>
+	</note>
         <p>See also 
-          <seealso marker="#send_after/3">erlang:send_after/3</seealso>,
-          <seealso marker="#start_timer/3">erlang:start_timer/3</seealso>,
+          <seealso marker="#send_after/4"><c>erlang:send_after/4</c></seealso>,
+          <seealso marker="#start_timer/4"><c>erlang:start_timer/4</c></seealso>,
           and
-          <seealso marker="#read_timer/1">erlang:read_timer/1</seealso>.</p>
-        <p>Note: Cancelling a timer does not guarantee that the message
-          has not already been delivered to the message queue.</p>
+          <seealso marker="#read_timer/2"><c>erlang:read_timer/2</c></seealso>.</p>
+      </desc>
+    </func>
+    <func>
+      <name name="cancel_timer" arity="1"/>
+      <fsummary>Cancel a timer</fsummary>
+      <desc>
+        <p>Cancels a timer. The same as calling
+	<seealso marker="#cancel_timer/2"><c>erlang:cancel_timer(TimerRef,
+	[])</c></seealso>.</p>
       </desc>
     </func>
-
     <func>
       <name name="check_old_code" arity="1"/>
       <fsummary>Check if a module has old code</fsummary>
@@ -585,6 +735,22 @@
       </desc>
     </func>
     <func>
+      <name name="convert_time_unit" arity="3"/>
+      <fsummary>Convert time unit of a time value</fsummary>
+      <desc>
+	<p>Converts the <c><anno>Time</anno></c> value of time unit
+	<c><anno>FromUnit</anno></c> to the corresponding
+	<c><anno>ConvertedTime</anno></c> value of time unit
+	<c><anno>ToUnit</anno></c>. The result is rounded
+	using the floor function.</p>
+
+	<warning><p>You may lose accuracy and precision when converting
+	between	time units. In order to minimize such loss, collect all
+	data at <c>native</c> time unit and do the conversion on the end
+	result.</p></warning>
+      </desc>
+    </func>
+    <func>
       <name name="crc32" arity="1"/>
       <fsummary>Compute crc32 (IEEE 802.3) checksum</fsummary>
       <desc>
@@ -1252,10 +1418,11 @@ true
       <fsummary>Check if a function is exported and loaded</fsummary>
       <desc>
         <p>Returns <c>true</c> if the module <c><anno>Module</anno></c> is loaded
-          and contains an exported function <c><anno>Function</anno>/<anno>Arity</anno></c>;
-          otherwise <c>false</c>.</p>
-        <p>Returns <c>false</c> for any BIF (functions implemented in C
-          rather than in Erlang).</p>
+          and contains an exported function <c><anno>Function</anno>/<anno>Arity</anno></c>,
+	  or if there is a BIF (a built-in function implemented in C)
+	  with the given name; otherwise returns <c>false</c>.</p>
+	  <note><p>This function used to return false for built-in
+	  functions before the 18.0 release.</p></note>
       </desc>
     </func>
     <func>
@@ -1376,6 +1543,19 @@ true
       </desc>
     </func>
     <func>
+      <name name="get_keys" arity="0"/>
+      <fsummary>Return a list of all keys from the process dictionary</fsummary>
+      <desc>
+        <p>Returns a list of keys all keys present in the process dictionary.</p>
+        <pre>
+> <input>put(dog, {animal,1}),</input>
+<input>put(cow, {animal,2}),</input>
+<input>put(lamb, {animal,3}),</input>
+<input>get_keys().</input>
+[dog,cow,lamb]</pre>
+      </desc>
+    </func>
+    <func>
       <name name="get_keys" arity="1"/>
       <fsummary>Return a list of keys from the process dictionary</fsummary>
       <desc>
@@ -2191,14 +2371,15 @@ os_prompt% </pre>
     </func>
     <func>
       <name name="make_ref" arity="0"/>
-      <fsummary>Return an almost unique reference</fsummary>
+      <fsummary>Return a unique reference</fsummary>
       <desc>
-        <p>Returns an almost unique reference.</p>
-        <p>The returned reference will re-occur after approximately 2^82
-          calls; therefore it is unique enough for practical purposes.</p>
-        <pre>
-> <input>make_ref().</input>
-#Ref&lt;0.0.0.135></pre>
+	<p>Return a <seealso marker="doc/efficiency_guide:advanced#unique_references">unique
+	reference</seealso>. The reference is unique among
+	connected nodes.</p>
+	<warning><p>Known issue: When a node is restarted multiple
+	times with the same node name, references created
+	on a newer node can be mistaken for a reference
+	created on an older node with the same node name.</p></warning>
       </desc>
     </func>
     <func>
@@ -2499,97 +2680,178 @@ os_prompt% </pre>
       </desc>
     </func>
     <func>
-      <name name="monitor" arity="2"/>
+      <name name="monitor" arity="2" clause_i="1"/>
+      <name name="monitor" arity="2" clause_i="2"/>
+      <type name="registered_name"/>
+      <type name="registered_process_identifier"/>
+      <type name="monitor_process_identifier"/>
       <fsummary>Start monitoring</fsummary>
       <desc>
-        <p>The calling process starts monitoring <c><anno>Item</anno></c> which is
-          an object of type <c><anno>Type</anno></c>.</p>
-        <p>Currently only processes can be monitored, i.e. the only
-          allowed <c><anno>Type</anno></c> is <c>process</c>, but other types may be
-          allowed in the future.</p>
-        <p><c><anno>Item</anno></c> can be:</p>
-        <taglist>
-          <tag><c>pid()</c></tag>
-          <item>
-            <p>The pid of the process to monitor.</p>
-          </item>
-          <tag><c>{RegName, Node}</c></tag>
-          <item>
-            <p>A tuple consisting of a registered name of a process and
-              a node name. The process residing on the node <c>Node</c>
-              with the registered name <c>RegName</c> will be monitored.</p>
-          </item>
-          <tag><c>RegName</c></tag>
-          <item>
-            <p>The process locally registered as <c>RegName</c> will be
-              monitored.</p>
-          </item>
-        </taglist>
-        <note>
-          <p>When a process is monitored by registered name, the process
-            that has the registered name at the time when
-            <c>monitor/2</c> is called will be monitored.
+	<p>Send a monitor request of type <c><anno>Type</anno></c> to the
+	entity identified by <c><anno>Item</anno></c>. The caller of
+	<c>monitor/2</c> will later be notified by a monitor message on the
+	following format if the monitored state is changed:</p>
+        <code type="none">{Tag, <anno>MonitorRef</anno>, <anno>Type</anno>, Object, Info}</code>
+	<note><p>The monitor request is an asynchronous signal. That is, it
+	takes time before the signal reach its destination.</p></note>
+	<p>Currently valid <c><anno>Type</anno></c>s:</p>
+	<taglist>
+	  <tag><marker id="monitor_process"/><c>process</c></tag>
+	  <item>
+	    <p>Monitor the existence of the process identified by
+	    <c><anno>Item</anno></c>. Currently valid
+	    <c><anno>Item</anno></c>s in combination with the
+	    <c>process <anno>Type</anno></c>:</p>
+            <taglist>
+              <tag><c>pid()</c></tag>
+              <item>
+		<p>The process identifier of the process to monitor.</p>
+              </item>
+              <tag><c>{RegisteredName, Node}</c></tag>
+              <item>
+		<p>A tuple consisting of a registered name of a process and
+		a node name. The process residing on the node <c>Node</c>
+		with the registered name <c>{RegisteredName, Node}</c> will
+		be monitored.</p>
+              </item>
+              <tag><c>RegisteredName</c></tag>
+              <item>
+		<p>The process locally registered as <c>RegisteredName</c>
+		will become monitored.</p>
+              </item>
+            </taglist>
+            <note><p>When a process is monitored by registered name, the
+	    process that has the registered name at the time when the
+            monitor request reach its destination will be monitored.
             The monitor will not be effected, if the registered name is
-            unregistered.</p>
-        </note>
-        <p>A <c>'DOWN'</c> message will be sent to the monitoring
-          process if <c><anno>Item</anno></c> dies, if <c><anno>Item</anno></c> does not exist,
-          or if the connection is lost to the node which <c><anno>Item</anno></c>
-          resides on. A <c>'DOWN'</c> message has the following pattern:</p>
-        <code type="none">
-{'DOWN', MonitorRef, Type, Object, Info}</code>
-        <p>where <c>MonitorRef</c> and <c>Type</c> are the same as
-          described above, and:</p>
-        <taglist>
-          <tag><c>Object</c></tag>
-          <item>
-            <p>A reference to the monitored object:</p>
-            <list type="bulleted">
-              <item>the pid of the monitored process, if <c><anno>Item</anno></c> was
-               specified as a pid.</item>
-              <item><c>{RegName, Node}</c>, if <c><anno>Item</anno></c> was specified as
-              <c>{RegName, Node}</c>.</item>
-              <item><c>{RegName, Node}</c>, if <c><anno>Item</anno></c> was specified as
-              <c>RegName</c>. <c>Node</c> will in this case be the
-               name of the local node (<c>node()</c>).</item>
-            </list>
-          </item>
-          <tag><c>Info</c></tag>
-          <item>
-            <p>Either the exit reason of the process, <c>noproc</c>
-              (non-existing process), or <c>noconnection</c> (no
-              connection to <c><anno>Node</anno></c>).</p>
-          </item>
-        </taglist>
-        <note>
-          <p>If/when <c>monitor/2</c> is extended (e.g. to
-            handle other item types than <c>process</c>), other
-            possible values for <c>Object</c>, and <c>Info</c> in the
-            <c>'DOWN'</c> message will be introduced.</p>
-        </note>
-        <p>The monitoring is turned off either when the <c>'DOWN'</c>
-          message is sent, or when
-          <seealso marker="#demonitor/1">demonitor/1</seealso>
-          is called.</p>
-        <p>If an attempt is made to monitor a process on an older node
-          (where remote process monitoring is not implemented or one
-          where remote process monitoring by registered name is not
-          implemented), the call fails with <c>badarg</c>.</p>
-        <p>Making several calls to <c>monitor/2</c> for the same
-          <c><anno>Item</anno></c> is not an error; it results in as many, completely
-          independent, monitorings.</p>
+            unregistered, or unregistered and later registered on another
+	    process.</p></note>
+	    <p>The monitor is triggered either when the monitored process
+	    terminates, is non existing, or if the connection to it is
+	    lost. In the case the connection to it is lost, we do not know
+	    if it still exist or not. After this type of monitor has been
+	    triggered, the monitor is automatically removed.</p>
+            <p>When the monitor is triggered a <c>'DOWN'</c> message will
+	    be sent to the monitoring process. A <c>'DOWN'</c> message has
+	    the following pattern:</p>
+            <code type="none">{'DOWN', MonitorRef, Type, Object, Info}</code>
+            <p>where <c>MonitorRef</c> and <c>Type</c> are the same as
+            described above, and:</p>
+            <taglist>
+              <tag><c>Object</c></tag>
+              <item>
+		<p>equals:</p>
+		<taglist>
+		  <tag><c><anno>Item</anno></c></tag>
+		  <item>If <c><anno>Item</anno></c> was specified by a
+		  pid.</item>
+		  <tag><c>{RegisteredName, Node}</c></tag>
+		  <item>If <c><anno>Item</anno></c> was specified as
+		  <c>RegisteredName</c>, or <c>{RegisteredName, Node}</c>
+		  where <c>Node</c> corresponds to the node that the
+		  monitored process resides on.</item>
+		</taglist>
+              </item>
+              <tag><c>Info</c></tag>
+              <item>
+		<p>Either the exit reason of the process, <c>noproc</c>
+		(non-existing process), or <c>noconnection</c> (no
+		connection to the node where the monitored process
+		resides).</p></item>
+	    </taglist>
+	    <p>The monitoring is turned off either when the <c>'DOWN'</c>
+	    message is sent, or when
+	    <seealso marker="#demonitor/1">demonitor/1</seealso>
+	    is called.</p>
+	    <p>If an attempt is made to monitor a process on an older node
+	    (where remote process monitoring is not implemented or one
+	    where remote process monitoring by registered name is not
+	    implemented), the call fails with <c>badarg</c>.</p>
+	    <note>
+	      <p>The format of the <c>'DOWN'</c> message changed in the 5.2
+	      version of the emulator (OTP release R9B) for monitor
+	      <em>by registered name</em>. The <c>Object</c> element of
+	      the <c>'DOWN'</c> message could in earlier versions
+	      sometimes be the pid of the monitored process and sometimes
+	      be the registered name. Now the <c>Object</c> element is
+	      always a tuple consisting of the registered name and
+	      the node name. Processes on new nodes (emulator version 5.2
+	      or greater) will always get <c>'DOWN'</c> messages on
+	      the new format even if they are monitoring processes on old
+	      nodes. Processes on old nodes will always get <c>'DOWN'</c>
+	      messages on the old format.</p>
+	    </note>
+	  </item>
+	  <tag><marker id="monitor_time_offset"/><c>time_offset</c></tag>
+	  <item>
+	    <p>Monitor changes in
+	    <seealso marker="#time_offset/0">time offset</seealso>
+	    between
+	    <seealso marker="time_correction#Erlang_Monotonic_Time">Erlang
+	    monotonic time</seealso> and
+	    <seealso marker="time_correction#Erlang_System_Time">Erlang
+	    system time</seealso>. There is only one valid
+	    <c><anno>Item</anno></c> in combination with the
+	    <c>time_offset <anno>Type</anno></c>, namely the atom
+	    <c>clock_service</c>. Note that the atom <c>clock_service</c> is
+	    <em>not</em> the registered name of a process. In this specific
+	    case it serves as an identifier of the runtime system internal
+	    clock service at current runtime system instance.</p>
+
+	    <p>The monitor is triggered when the time offset is changed.
+	    This either if the time offset value is changed, or if the
+	    offset is changed from preliminary to final during
+	    <seealso marker="#system_flag_time_offset">finalization
+	    of the time offset</seealso> when the
+	    <seealso marker="time_correction#Single_Time_Warp_Mode">single
+	    time warp mode</seealso> is used. When a change from preliminary
+	    to final time offset is made, the monitor will be triggered once
+	    regardless of whether the time offset value was changed due to
+	    the finalization or not.</p>
+
+	    <p>If the runtime system is in
+	    <seealso marker="time_correction#Multi_Time_Warp_Mode">multi
+	    time warp mode</seealso>, the time offset will be changed when
+	    the runtime system detects that the
+	    <seealso marker="time_correction#OS_System_Time">OS system
+	    time</seealso> has changed. The runtime system will, however,
+	    not detect this immediately when it happens. A task checking
+	    the time offset is scheduled to execute at least once a minute,
+	    so under normal operation this should be detected within a
+	    minute, but during heavy load it might take longer time.</p>
+
+	    <p>The monitor will <em>not</em> be automatically removed
+	    after it has been triggered. That is, repeated changes of
+	    the time offset will trigger the monitor repeatedly.</p>
+
+            <p>When the monitor is triggered a <c>'CHANGE'</c> message will
+	    be sent to the monitoring process. A <c>'CHANGE'</c> message has
+	    the following pattern:</p>
+            <code type="none">{'CHANGE', MonitorRef, Type, Item, NewTimeOffset}</code>
+            <p>where <c>MonitorRef</c>, <c><anno>Type</anno></c>, and 
+	    <c><anno>Item</anno></c> are the same as described above, and
+	    <c>NewTimeOffset</c> is the new time offset.</p>
+
+	    <p>When the <c>'CHANGE'</c> message has been received you are
+	    guaranteed not to retrieve the old time offset when calling
+	    <seealso marker="#time_offset/0"><c>erlang:time_offset()</c></seealso>.
+	    Note that you may observe the change of the time offset
+	    when calling <c>erlang:time_offset()</c> before you
+	    get the <c>'CHANGE'</c> message.</p>
+
+	  </item>
+	</taglist>
+	<p>Making several calls to <c>monitor/2</c> for the same
+	<c><anno>Item</anno></c> and/or <c><anno>Type</anno></c> is not
+	an error; it results in many, completely independent,
+	monitorings.</p>
+	<p>The monitor functionality is expected to be extended. That is,
+	other <c><anno>Type</anno></c>s and <c><anno>Item</anno></c>s
+	are expected to be supported in	the future.</p>
         <note>
-          <p>The format of the <c>'DOWN'</c> message changed in the 5.2
-            version of the emulator (OTP release R9B) for monitor <em>by registered name</em>. The <c>Object</c> element of
-            the <c>'DOWN'</c> message could in earlier versions
-            sometimes be the pid of the monitored process and sometimes
-            be the registered name. Now the <c>Object</c> element is
-            always a tuple consisting of the registered name and
-            the node name. Processes on new nodes (emulator version 5.2
-            or greater) will always get <c>'DOWN'</c> messages on
-            the new format even if they are monitoring processes on old
-            nodes. Processes on old nodes will always get <c>'DOWN'</c>
-            messages on the old format.</p>
+          <p>If/when <c>monitor/2</c> is extended, other
+            possible values for <c>Tag</c>, <c>Object</c>, and
+	    <c>Info</c> in the monitor message will be introduced.</p>
         </note>
       </desc>
     </func>
@@ -2640,6 +2902,51 @@ os_prompt% </pre>
       </desc>
     </func>
     <func>
+      <name name="monotonic_time" arity="0"/>
+      <fsummary>Current Erlang monotonic time</fsummary>
+      <desc>
+	<p>Returns the current
+	<seealso marker="time_correction#Erlang_Monotonic_Time">Erlang
+	monotonic time</seealso> in <c>native</c>
+	<seealso marker="#type_time_unit">time unit</seealso>. This
+	is a monotonically increasing time since some unspecified point in
+	time.</p>
+
+	<note><p>This is a
+	<seealso marker="time_correction#Monotonically_Increasing">monotonically increasing</seealso> time, but <em>not</em> a
+	<seealso marker="time_correction#Strictly_Monotonically_Increasing">strictly monotonically increasing</seealso>
+	time. That is, consecutive calls to
+	<c>erlang:monotonic_time/0</c> may produce the same result.</p>
+
+	<p>Different runtime system instances will use different
+	unspecified points in time as base for their Erlang monotonic clocks.
+	That is, it is <em>pointless</em> comparing monotonic times from
+	different runtime system instances. Different runtime system instances
+	may also place this unspecified point in time different relative
+	runtime system start. It may be placed in the future (time at start
+	will be a negative value), the past (time at start will be a
+	positive value), or the runtime system start (time at start will
+	be zero). The monotonic time as of runtime system start can be
+	retrieved by calling
+	<seealso marker="#system_info_start_time"><c>erlang:system_info(start_time)</c></seealso>.</p></note>
+      </desc>
+    </func>
+    <func>
+      <name name="monotonic_time" arity="1"/>
+      <fsummary>Current Erlang monotonic time</fsummary>
+      <desc>
+	<p>Returns the current
+	<seealso marker="time_correction#Erlang_Monotonic_Time">Erlang
+	monotonic time</seealso> converted
+	into the <c><anno>Unit</anno></c> passed as argument.</p>
+
+	<p>Same as calling
+	<seealso marker="#convert_time_unit/3"><c>erlang:convert_time_unit</c></seealso><c>(</c><seealso marker="#monotonic_time/0"><c>erlang:monotonic_time()</c></seealso><c>,
+	native, <anno>Unit</anno>)</c>
+	however optimized for commonly used <c><anno>Unit</anno></c>s.</p>
+      </desc>
+    </func>
+    <func>
       <name name="nif_error" arity="1"/>
       <fsummary>Stop execution with a given reason</fsummary>
       <desc>
@@ -2734,6 +3041,13 @@ os_prompt% </pre>
       <type name="timestamp"/>
       <fsummary>Elapsed time since 00:00 GMT</fsummary>
       <desc>
+	<warning><p><em>This function is deprecated! Do not use it!</em>
+	See the users guide chapter
+	<seealso marker="time_correction">Time and Time Correction</seealso>
+	for more information. Specifically the 
+	<seealso marker="time_correction#Dos_and_Donts">Dos and Dont's</seealso>
+	section for information on what to use instead of <c>erlang:now/0</c>.
+	</p></warning>
         <p>Returns the tuple <c>{MegaSecs, Secs, MicroSecs}</c> which is
           the elapsed time since 00:00 GMT, January 1, 1970 (zero hour)
           on the assumption that the underlying OS supports this.
@@ -2746,10 +3060,6 @@ os_prompt% </pre>
         <p>It can only be used to check the local time of day if
           the time-zone info of the underlying operating system is
           properly configured.</p>
-        <p>If you do not need the return value to be unique and
-          monotonically increasing, use
-          <seealso marker="kernel:os#timestamp/0">os:timestamp/0</seealso>
-          instead to avoid some overhead.</p>
       </desc>
     </func>
     <func>
@@ -4274,23 +4584,77 @@ os_prompt% </pre>
       </desc>
     </func>
     <func>
-      <name name="read_timer" arity="1"/>
-      <fsummary>Number of milliseconds remaining for a timer</fsummary>
-      <desc>
-        <p><c><anno>TimerRef</anno></c> is a timer reference returned by
-          <seealso marker="#send_after/3">erlang:send_after/3</seealso>
-          or
-          <seealso marker="#start_timer/3">erlang:start_timer/3</seealso>.
-          If the timer is active, the function returns the time in
-          milliseconds left until the timer will expire, otherwise
-          <c>false</c> (which means that <c><anno>TimerRef</anno></c> was never a
-          timer, that it has been cancelled, or that it has already
-          delivered its message).</p>
+      <name name="read_timer" arity="2"/>
+      <fsummary>Read the state of a timer</fsummary>
+      <desc>
+        <p>
+	  Read the state of a timer that has been created by either
+	  <seealso marker="#start_timer/4"><c>erlang:start_timer()</c></seealso>,
+	  or <seealso marker="#send_after/4"><c>erlang:send_after()</c></seealso>.
+	  <c><anno>TimerRef</anno></c> identifies the timer, and
+	  was returned by the BIF that created the timer.
+	</p>
+	<p>Currently available <c><anno>Option</anno>s</c>:</p>
+        <taglist>
+          <tag><c>{async, Async}</c></tag>
+          <item>
+	    <p>
+	      Asynchronous request for state information. <c>Async</c>
+	      defaults to <c>false</c> which will cause the operation
+	      to be performed synchronously. In this case, the <c>Result</c>
+	      will be returned by <c>erlang:read_timer()</c>. When
+	      <c>Async</c> is set to <c>true</c>, <c>erlang:read_timer()</c>
+	      will send an asynchronous request for the state information
+	      to the timer service that manages the timer, and then return
+	      <c>ok</c>. A message on the format <c>{read_timer,
+	      <anno>TimerRef</anno>, <anno>Result</anno>}</c> will be
+	      sent to the caller of <c>erlang:read_timer()</c> when the
+	      operation has been processed.
+	    </p>
+	  </item>
+        </taglist>
+	<p>
+	  More <c><anno>Option</anno></c>s may be added in the future.
+	</p>
+	<p>
+	  When the <c><anno>Result</anno></c> equals <c>false</c>, a
+	  timer corresponding to <c><anno>TimerRef</anno></c> could not
+	  be found. This can be either because the timer had expired,
+	  had been canceled, or because <c><anno>TimerRef</anno></c>
+	  never has corresponded to a timer. If the timer has expired,
+	  the timeout message has been sent, but it does not tell you
+	  whether or not it has arrived at its destination yet. When the
+	  <c><anno>Result</anno></c> is an integer, it represents the
+	  time in milli-seconds left until the timer will expire.
+	</p>
+	<note>
+	  <p>
+	    The timer service that manages the timer may be co-located
+	    with another scheduler than the scheduler that the calling
+	    process is executing on. If this is the case, communication
+	    with the timer service will take much longer time than if it
+	    is located locally. If the calling process is in critical
+	    path, and can do other things while waiting for the result
+	    of this operation you want to use the <c>{async, true}</c>
+	    option. If using the <c>{async, false}</c> option, the calling
+	    process will be blocked until the operation has been
+	    performed.
+	  </p>
+	</note>
         <p>See also 
-          <seealso marker="#send_after/3">erlang:send_after/3</seealso>,
-          <seealso marker="#start_timer/3">erlang:start_timer/3</seealso>,
+          <seealso marker="#send_after/4"><c>erlang:send_after/4</c></seealso>,
+          <seealso marker="#start_timer/4"><c>erlang:start_timer/4</c></seealso>,
           and
-          <seealso marker="#cancel_timer/1">erlang:cancel_timer/1</seealso>.</p>
+          <seealso marker="#cancel_timer/2"><c>erlang:cancel_timer/2</c></seealso>.</p>
+      </desc>
+    </func>
+    <func>
+      <name name="read_timer" arity="1"/>
+      <fsummary>Read the state of a timer</fsummary>
+      <desc>
+        <p>Read the state of a timer. The same as calling
+	<seealso marker="#read_timer/2"><c>erlang:read_timer(TimerRef,
+	[])</c></seealso>.</p>
       </desc>
     </func>
     <func>
@@ -4439,31 +4803,26 @@ true</pre>
       </desc>
     </func>
     <func>
+      <name name="send_after" arity="4"/>
+      <fsummary>Start a timer</fsummary>
+      <desc>
+        <p>
+	  Starts a timer. When the timer expires, the message
+          <c><anno>Msg</anno></c> will be sent to the process
+	  identified by <c><anno>Dest</anno></c>. Appart from
+	  the format of the message sent to
+	  <c><anno>Dest</anno></c> when the timer expires
+	  <c>erlang:send_after/4</c> works exactly as
+	  <seealso marker="#start_timer/4"><c>erlang:start_timer/4</c></seealso>.</p>
+      </desc>
+    </func>
+    <func>
       <name name="send_after" arity="3"/>
-      <type_desc variable="Time">0 &lt;= Time &lt;= 4294967295</type_desc>
       <fsummary>Start a timer</fsummary>
       <desc>
-        <p>Starts a timer which will send the message <c>Msg</c>
-          to <c><anno>Dest</anno></c> after <c><anno>Time</anno></c> milliseconds.</p>
-	<p>If <c><anno>Dest</anno></c> is a <c>pid()</c> it has to be a <c>pid()</c> of a local process, dead or alive.</p>
-	<p>The <c><anno>Time</anno></c> value can, in the current implementation, not be greater than 4294967295.</p>
-        <p>If <c><anno>Dest</anno></c> is an <c>atom()</c>, it is supposed to be the name of
-          a registered process. The process referred to by the name is
-          looked up at the time of delivery. No error is given if
-          the name does not refer to a process.</p>
-
-        <p>If <c><anno>Dest</anno></c> is a <c>pid()</c>, the timer will be automatically
-          canceled if the process referred to by the <c>pid()</c> is not alive,
-          or when the process exits. This feature was introduced in
-          erts version 5.4.11. Note that timers will not be
-          automatically canceled when <c><anno>Dest</anno></c> is an <c>atom</c>.</p>
-        <p>See also
-          <seealso marker="#start_timer/3">erlang:start_timer/3</seealso>,
-          <seealso marker="#cancel_timer/1">erlang:cancel_timer/1</seealso>,
-          and
-          <seealso marker="#read_timer/1">erlang:read_timer/1</seealso>.</p>
-        <p>Failure: <c>badarg</c> if the arguments does not satisfy
-          the requirements specified above.</p>
+        <p>Starts a timer. The same as calling
+	<seealso marker="#send_after/4"><c>erlang:send_after(<anno>Time</anno>,
+	<anno>Dest</anno>, <anno>Msg</anno>, [])</c></seealso>.</p>
       </desc>
     </func>
     <func>
@@ -4869,34 +5228,81 @@ true</pre>
       </desc>
     </func>
     <func>
-      <name name="start_timer" arity="3"/>
-      <type_desc variable="Time">0 &lt;= Time &lt;= 4294967295</type_desc>
+      <name name="start_timer" arity="4"/>
       <fsummary>Start a timer</fsummary>
       <desc>
-        <p>Starts a timer which will send the message
-          <c>{timeout, <anno>TimerRef</anno>, <anno>Msg</anno>}</c> to <c><anno>Dest</anno></c>
-          after <c><anno>Time</anno></c> milliseconds.</p>
-	<p>If <c><anno>Dest</anno></c> is a <c>pid()</c> it has to be a <c>pid()</c> of a local process, dead or alive.</p>
-	<p>The <c><anno>Time</anno></c> value can, in the current implementation, not be greater than 4294967295.</p>
-        <p>If <c><anno>Dest</anno></c> is an <c>atom()</c>, it is supposed to be the name of
-          a registered process. The process referred to by the name is
-          looked up at the time of delivery. No error is given if
-          the name does not refer to a process.</p>
-        <p>If <c><anno>Dest</anno></c> is a <c>pid()</c>, the timer will be automatically
-          canceled if the process referred to by the <c>pid()</c> is not alive,
-          or when the process exits. This feature was introduced in
-          erts version 5.4.11. Note that timers will not be
-          automatically canceled when <c><anno>Dest</anno></c> is an <c>atom()</c>.</p>
+        <p>
+	  Starts a timer. When the timer expires, the message
+          <c>{timeout, <anno>TimerRef</anno>, <anno>Msg</anno>}</c>
+	  will be sent to the process identified by
+	  <c><anno>Dest</anno></c>.
+	</p>
+	<p>Currently available <c><anno>Option</anno></c>s:</p>
+        <taglist>
+          <tag><c>{abs, Abs}</c></tag>
+          <item>
+	    <p>
+	      Absolute <c><anno>Time</anno></c> value. <c>Abs</c>
+	      defaults to <c>false</c> which means that the
+	      <c><anno>Time</anno></c> value will be interpreted
+	      as a time in milli-seconds relative current
+	      <seealso marker="time_correction#Erlang_Monotonic_Time">Erlang
+	      monotonic time</seealso>. When <c>Abs</c> is set to
+	      <c>true</c>, the <c><anno>Time</anno></c> value will
+	      be interpreted as an absolute Erlang monotonic time of
+	      milli-seconds
+	      <seealso marker="#type_time_unit">time unit</seealso>.
+	    </p>
+	  </item>
+        </taglist>
+	<p>
+	  More <c><anno>Option</anno></c>s may be added in the future.
+	</p>
+	<p>
+	  The absolute point in time that the timer is set to expire on
+	  has to be in the interval
+	  <c>[</c><seealso marker="#system_info_start_time"><c>erlang:system_info(start_time)</c></seealso><c>,
+	  </c><seealso marker="#system_info_end_time"><c>erlang:system_info(end_time)</c></seealso><c>]</c>.
+	  Further, if a relative time is specified, the <c><anno>Time</anno></c> value
+	  is not allowed to be negative.
+	</p>
+	<p>
+	  If <c><anno>Dest</anno></c> is a <c>pid()</c>, it has to
+	  be a <c>pid()</c> of a process created on the current
+	  runtime system instance. This process may or may not
+	  have terminated. If <c><anno>Dest</anno></c> is an
+	  <c>atom()</c>, it will be interpreted as the name of a
+	  locally registered process. The process referred to by the
+	  name is looked up at the time of timer expiration. No error
+	  is given if the name does not refer to a process.
+	</p>
+        <p>
+	  If <c><anno>Dest</anno></c> is a <c>pid()</c>, the timer will
+	  be automatically canceled if the process referred to by the
+	  <c>pid()</c> is not alive, or when the process exits. This
+	  feature was introduced in erts version 5.4.11. Note that
+	  timers will not be automatically canceled when
+	  <c><anno>Dest</anno></c> is an <c>atom()</c>.
+	</p>
         <p>See also
-          <seealso marker="#send_after/3">erlang:send_after/3</seealso>,
-          <seealso marker="#cancel_timer/1">erlang:cancel_timer/1</seealso>,
+          <seealso marker="#send_after/4"><c>erlang:send_after/4</c></seealso>,
+          <seealso marker="#cancel_timer/2"><c>erlang:cancel_timer/2</c></seealso>,
           and
-          <seealso marker="#read_timer/1">erlang:read_timer/1</seealso>.</p>
+          <seealso marker="#read_timer/2"><c>erlang:read_timer/2</c></seealso>.</p>
         <p>Failure: <c>badarg</c> if the arguments does not satisfy
           the requirements specified above.</p>
       </desc>
     </func>
     <func>
+      <name name="start_timer" arity="3"/>
+      <fsummary>Start a timer</fsummary>
+      <desc>
+        <p>Starts a timer. The same as calling
+	<seealso marker="#start_timer/4"><c>erlang:start_timer(<anno>Time</anno>,
+	<anno>Dest</anno>, <anno>Msg</anno>, [])</c></seealso>.</p>
+      </desc>
+    </func>
+    <func>
       <name name="statistics" arity="1" clause_i="1"/>
       <fsummary>Information about context switches</fsummary>
       <desc>
@@ -5496,6 +5902,35 @@ ok
         <p>Returns the old value of the flag.</p>
       </desc>
     </func>
+    <marker id="system_flag_time_offset"/>
+    <func>
+      <name name="system_flag" arity="2" clause_i="12"/>
+      <fsummary>Finalize the Time Offset</fsummary>
+      <desc>
+        <p>Finalizes the <seealso marker="#time_offset/0">time offset</seealso>
+	when the <seealso marker="time_correction#Single_Time_Warp_Mode">single
+	time warp mode</seealso> is being used. If another time warp mode than
+	the "single time warp mode" is used, the time offset state will be left
+	unchanged.</p>
+        <p>Returns the old state identifier. That is, if:</p>
+	<list>
+	  <item><p><c>preliminary</c> is returned, finalization was
+	  performed and the time offset is now final.</p></item>
+
+	  <item><p><c>final</c> is returned, the time offset was
+	  already in the final state. This either due to another
+	  <c>erlang:system_flag(time_offset, finalize)</c> call, or
+	  due to the
+	  <seealso marker="time_correction#No_Time_Warp_Mode">no
+	  time warp mode</seealso> being used.</p></item>
+
+	  <item><p><c>volatile</c> is returned, the time offset
+	  cannot be finalized due to the 
+	  <seealso marker="time_correction#Multi_Time_Warp_Mode">multi
+	  time warp mode</seealso> being used.</p></item>
+	</list>
+      </desc>
+    </func>
     <func>
       <name name="system_info" arity="1" clause_i="1"/>
       <name name="system_info" arity="1" clause_i="2"/>
@@ -5776,6 +6211,17 @@ ok
       <name name="system_info" arity="1" clause_i="53"/>
       <name name="system_info" arity="1" clause_i="54"/>
       <name name="system_info" arity="1" clause_i="55"/>
+      <name name="system_info" arity="1" clause_i="56"/>
+      <name name="system_info" arity="1" clause_i="57"/>
+      <name name="system_info" arity="1" clause_i="58"/>
+      <name name="system_info" arity="1" clause_i="59"/>
+      <name name="system_info" arity="1" clause_i="60"/>
+      <name name="system_info" arity="1" clause_i="61"/>
+      <name name="system_info" arity="1" clause_i="62"/>
+      <name name="system_info" arity="1" clause_i="63"/>
+      <name name="system_info" arity="1" clause_i="64"/>
+      <name name="system_info" arity="1" clause_i="65"/>
+      <name name="system_info" arity="1" clause_i="66"/>
       <fsummary>Information about the system</fsummary>
       <desc>
         <p>Returns various information about the current system
@@ -5965,6 +6411,14 @@ ok
             (i.e. <c>system_info(dynamic_trace)</c> returns
             <c>dtrace</c> or <c>systemtap</c>).</p>
           </item>
+	  <tag><marker id="system_info_end_time"/><c>end_time</c></tag>
+	  <item><p>The last <seealso marker="#monotonic_time/0">Erlang monotonic
+	  time</seealso> in <c>native</c>
+	  <seealso marker="#type_time_unit">time unit</seealso> that
+	  can be represented internally in the current Erlang runtime system
+	  instance. The time between the
+	  <seealso marker="#system_info_start_time">start time</seealso> and
+	  the end time is at least a quarter of a millennium.</p></item>
           <tag><c>elib_malloc</c></tag>
           <item>
             <p>This option will be removed in a future release.
@@ -6163,6 +6617,123 @@ ok
 	    documentation of versions in the system principles
 	    guide</seealso>.</p>
           </item>
+          <tag><marker id="system_info_os_monotonic_time_source"><c>os_monotonic_time_source</c></marker></tag>
+          <item>
+            <p>Returns a list containing information about the source of
+	    <seealso marker="erts:time_correction#OS_Monotonic_Time">OS
+	    monotonic time</seealso> that is used by the runtime system.</p>
+	    <p>In case <c>[]</c> is returned, no OS monotonic time is
+	    available. The list contains two-tuples with <c>Key</c>s
+	    as first element, and <c>Value</c>s as second element. The
+	    order if these tuples is undefined. Currently the following
+	    tuples may be part of the list, but more tuples may be
+	    introduced in the future:</p>
+	    <taglist>
+	      <tag><c>{function, Function}</c></tag>
+	      <item><p><c>Function</c> is the name of the funcion
+	      used. This tuple always exist if OS monotonic time is
+	      available to the runtime system.</p></item>
+
+	      <tag><c>{clock_id, ClockId}</c></tag>
+	      <item><p>This tuple only exist if <c>Function</c>
+	      can be used with different clocks. <c>ClockId</c>
+	      corresponds to the clock identifer used when calling
+	      <c>Function</c>.</p></item>
+
+	      <tag><c>{resolution, OsMonotonicTimeResolution}</c></tag>
+	      <item><p>Highest possible
+	      <seealso marker="time_correction#Time_Resolution">resolution</seealso>
+	      of current OS monotonic time source as parts per
+	      second. If no resolution information can be retreived
+	      from the OS, <c>OsMonotonicTimeResolution</c> will be
+	      set to the resolution of the time unit of
+	      <c>Function</c>s return value. That is, the actual
+	      resolution may be lower than
+	      <c>OsMonotonicTimeResolution</c>. Also note that
+	      the resolution does not say anything about the
+	      <seealso marker="time_correction#Time_Accuracy">accuracy</seealso>,
+	      and that the
+	      <seealso marker="time_correction#Time_Precision">precision</seealso>
+	      might not align with the resolution. You do,
+	      however, know that the precision won't be
+	      better than
+	      <c>OsMonotonicTimeResolution</c>.</p></item>
+
+	      <tag><c>{extended, Extended}</c></tag>
+	      <item><p><c>Extended</c> equals <c>yes</c> if
+	      the range of time values has been extended;
+	      otherwise, <c>Extended</c> equals <c>no</c>. The
+	      range needs to be extended if <c>Function</c>
+	      returns values that wrap fast. This typically
+	      is the case when the return value is a 32-bit
+	      value.</p></item>
+
+	      <tag><c>{parallel, Parallel}</c></tag>
+	      <item><p><c>Parallel</c> equals <c>yes</c> if
+	      <c>Function</c> is called in parallel from multiple
+	      threads. If it is not called in parallel, because
+	      calls needs to be serialized, <c>Parallel</c> equals
+	      <c>no</c>.</p></item>
+
+	      <tag><c>{time, OsMonotonicTime}</c></tag>
+	      <item><p><c>OsMonotonicTime</c> equals current OS
+	      monotonic time in <c>native</c>
+	      <seealso marker="#type_time_unit">time unit</seealso>.</p></item>
+	    </taglist>
+          </item>
+          <tag><marker id="system_info_os_system_time_source"><c>os_system_time_source</c></marker></tag>
+          <item>
+            <p>Returns a list containing information about the source of
+	    <seealso marker="erts:time_correction#OS_System_Time">OS
+	    system time</seealso> that is used by the runtime system.</p>
+	    <p>The list contains two-tuples with <c>Key</c>s
+	    as first element, and <c>Value</c>s as second element. The
+	    order if these tuples is undefined. Currently the following
+	    tuples may be part of the list, but more tuples may be
+	    introduced in the future:</p>
+	    <taglist>
+	      <tag><c>{function, Function}</c></tag>
+	      <item><p><c>Function</c> is the name of the funcion
+	      used.</p></item>
+
+	      <tag><c>{clock_id, ClockId}</c></tag>
+	      <item><p>This tuple only exist if <c>Function</c>
+	      can be used with different clocks. <c>ClockId</c>
+	      corresponds to the clock identifer used when calling
+	      <c>Function</c>.</p></item>
+
+	      <tag><c>{resolution, OsSystemTimeResolution}</c></tag>
+	      <item><p>Highest possible
+	      <seealso marker="time_correction#Time_Resolution">resolution</seealso>
+	      of current OS system time source as parts per
+	      second. If no resolution information can be retreived
+	      from the OS, <c>OsSystemTimeResolution</c> will be
+	      set to the resolution of the time unit of
+	      <c>Function</c>s return value. That is, the actual
+	      resolution may be lower than
+	      <c>OsSystemTimeResolution</c>. Also note that
+	      the resolution does not say anything about the
+	      <seealso marker="time_correction#Time_Accuracy">accuracy</seealso>,
+	      and that the
+	      <seealso marker="time_correction#Time_Precision">precision</seealso>
+	      might not align with the resolution. You do,
+	      however, know that the precision won't be
+	      better than
+	      <c>OsSystemTimeResolution</c>.</p></item>
+
+	      <tag><c>{parallel, Parallel}</c></tag>
+	      <item><p><c>Parallel</c> equals <c>yes</c> if
+	      <c>Function</c> is called in parallel from multiple
+	      threads. If it is not called in parallel, because
+	      calls needs to be serialized, <c>Parallel</c> equals
+	      <c>no</c>.</p></item>
+
+	      <tag><c>{time, OsSystemTime}</c></tag>
+	      <item><p><c>OsSystemTime</c> equals current OS
+	      system time in <c>native</c>
+	      <seealso marker="#type_time_unit">time unit</seealso>.</p></item>
+	    </taglist>
+          </item>
 	  <tag><marker id="system_info_port_parallelism"><c>port_parallelism</c></marker></tag>
 	  <item><p>Returns the default port parallelism scheduling hint used.
 	  For more information see the
@@ -6288,6 +6859,13 @@ ok
             <p>Returns <c>true</c> if the emulator has been compiled
               with smp support; otherwise, <c>false</c>.</p>
           </item>
+	  <tag><marker id="system_info_start_time"/><c>start_time</c></tag>
+	  <item><p>The <seealso marker="#monotonic_time/0">Erlang monotonic
+	  time</seealso> in <c>native</c>
+	  <seealso marker="#type_time_unit">time unit</seealso> at the
+	  time when current Erlang runtime system instance started. See also
+	  <seealso marker="#system_info_end_time"><c>erlang:system_info(end_time)</c></seealso>.
+	  </p></item>
           <tag><c>system_version</c></tag>
           <item>
             <p>Returns a string containing version number and
@@ -6311,12 +6889,64 @@ ok
               (<seealso marker="erts:erl_driver#driver_async">driver_async()</seealso>)
               as an integer.</p>
           </item>
+	  <tag><marker id="system_info_time_correction"/><c>time_correction</c></tag>
+	  <item><p>Returns a boolean value indicating whether
+	  <seealso marker="time_correction#Time_Correction">time correction</seealso>
+	  is enabled or not.
+	  </p></item>
+	  <tag><marker id="system_info_time_offset"/><c>time_offset</c></tag>
+	  <item><p>Returns the state of the time offset:</p>
+	  <taglist>
+	    <tag><c>preliminary</c></tag>
+	    <item><p>The time offset is preliminary, and will be changed
+	    at a later time when being finalized. The preliminary time offset
+	    is used during the preliminary phase of the
+	    <seealso marker="time_correction#Single_Time_Warp_Mode">single
+	    time warp mode</seealso>.</p></item>
+
+	    <tag><c>final</c></tag>
+	    <item><p>The time offset is final. This
+	    either due to the use of the
+	    <seealso marker="time_correction#No_Time_Warp_Mode">no
+	    time warp mode</seealso>, or due to the time offset having
+	    been finalized when using the
+	    <seealso marker="time_correction#Single_Time_Warp_Mode">single
+	    time warp mode</seealso>.</p></item>
+
+	    <tag><c>volatile</c></tag>
+	    <item><p>The time offset is volatile. That is, it may
+	    change at any time. This due to the
+	    <seealso marker="time_correction#Multi_Time_Warp_Mode">multi
+	    time warp mode</seealso> being used.</p></item>
+	  </taglist>
+	  </item>
+	  <tag><marker id="system_info_time_warp_mode"/><c>time_warp_mode</c></tag>
+	  <item><p>Returns a value identifying the
+	  <seealso marker="time_correction#Time_Warp_Modes">time warp
+	  mode</seealso> being used:</p>
+	  <taglist>
+	    <tag><c>no_time_warp</c></tag>
+	    <item><p>The <seealso marker="time_correction#No_Time_Warp_Mode">no
+	    time warp mode</seealso> is being used.</p></item>
+
+	    <tag><c>single_time_warp</c></tag>
+	    <item><p>The <seealso marker="time_correction#Single_Time_Warp_Mode">single
+	    time warp mode</seealso> is being used.</p></item>
+
+	    <tag><c>multi_time_warp</c></tag>
+	    <item><p>The <seealso marker="time_correction#Multi_Time_Warp_Mode">multi
+	    time warp mode</seealso> is being used.</p></item>
+	  </taglist>
+	  </item>
           <tag><marker id="system_info_tolerant_timeofday"><c>tolerant_timeofday</c></marker></tag>
           <item>
-            <p>Returns whether compensation for sudden changes of system
-              time is <c>enabled</c> or <c>disabled</c>.</p>
-            <p>See also <seealso marker="erts:erl#+c">+c</seealso>
-              command line flag.</p>
+            <p>Returns whether a pre erts-7.0 backwards compatible compensation
+	    for sudden changes of system time is <c>enabled</c> or <c>disabled</c>.
+	    Such compensation is <c>enabled</c> when the
+	    <seealso marker="#system_info_time_offset">time offset</seealso> is
+	    <c>final</c>, and
+	    <seealso marker="#system_info_time_correction">time correction</seealso>
+	    is enabled.</p>
           </item>
           <tag><c>trace_control_word</c></tag>
           <item>
@@ -6595,7 +7225,44 @@ ok
         </note>
       </desc>
     </func>
+    <func>
+      <name name="system_time" arity="0"/>
+      <fsummary>Current Erlang system time</fsummary>
+      <desc>
+	<p>Returns current
+	<seealso marker="time_correction#Erlang_System_Time">Erlang system time</seealso>
+	in <c>native</c>
+	<seealso marker="#type_time_unit">time unit</seealso>.</p>
+
+	<p>Calling <c>erlang:system_time()</c> is equivalent to: 
+	<seealso marker="#monotonic_time/0"><c>erlang:monotonic_time()</c></seealso><c>
+	+
+        </c><seealso marker="#time_offset/0"><c>erlang:time_offset()</c></seealso>.</p>
 
+	<note><p>This time is <em>not</em> a monotonically increasing time
+	in the general case. For more information, see the documentation of
+	<seealso marker="time_correction#Time_Warp_Modes">time warp modes</seealso> in the
+	ERTS User's Guide.</p></note>
+      </desc>
+    </func>
+    <func>
+      <name name="system_time" arity="1"/>
+      <fsummary>Current Erlang system time</fsummary>
+      <desc>
+	<p>Returns current
+	<seealso marker="time_correction#Erlang_System_Time">Erlang system time</seealso>
+	converted into the <c><anno>Unit</anno></c> passed as argument.</p>
+
+	<p>Calling <c>erlang:system_time(<anno>Unit</anno>)</c> is equivalent to: 
+	<seealso marker="#convert_time_unit/3"><c>erlang:convert_time_unit</c></seealso><c>(</c><seealso marker="#system_time/0"><c>erlang:system_time()</c></seealso><c>,
+	native, <anno>Unit</anno>)</c>.</p>
+
+	<note><p>This time is <em>not</em> a monotonically increasing time
+	in the general case. For more information, see the documentation of
+	<seealso marker="time_correction#Time_Warp_Modes">time warp modes</seealso> in the
+	ERTS User's Guide.</p></note>
+      </desc>
+    </func>
     <func>
       <name name="term_to_binary" arity="1"/>
       <fsummary>Encode a term to an Erlang external term format binary</fsummary>
@@ -6672,6 +7339,88 @@ ok
       </desc>
     </func>
     <func>
+      <name name="time_offset" arity="0"/>
+      <fsummary>Current time offset</fsummary>
+      <desc>
+	<p>Returns the current time offset between
+	<seealso marker="time_correction#Erlang_Monotonic_Time">Erlang monotonic time</seealso>
+	and
+	<seealso marker="time_correction#Erlang_System_Time">Erlang system time</seealso> in
+	<c>native</c> <seealso marker="#type_time_unit">time unit</seealso>.
+	Current time offset added to an Erlang monotonic time gives
+	corresponding Erlang system time.</p>
+
+	<p>The time offset may or may not change during operation depending
+	on the <seealso marker="time_correction#Time_Warp_Modes">time
+	warp mode</seealso> used.</p>
+
+	<note>
+	  <p>A change in time offset may be observed at slightly
+	  different points in time by different processes.</p>
+
+	  <p>If the runtime system is in
+	  <seealso marker="time_correction#Multi_Time_Warp_Mode">multi
+	  time warp mode</seealso>, the time offset will be changed when
+	  the runtime system detects that the
+	  <seealso marker="time_correction#OS_System_Time">OS system
+	  time</seealso> has changed. The runtime system will, however,
+	  not detect this immediately when it happens. A task checking
+	  the time offset is scheduled to execute at least once a minute,
+	  so under normal operation this should be detected within a
+	  minute, but during heavy load it might take longer time.</p>
+	</note>
+      </desc>
+    </func>
+    <func>
+      <name name="time_offset" arity="1"/>
+      <fsummary>Current time offset</fsummary>
+      <desc>
+	<p>Returns the current time offset between
+	<seealso marker="time_correction#Erlang_Monotonic_Time">Erlang monotonic time</seealso>
+	and
+	<seealso marker="time_correction#Erlang_System_Time">Erlang system time</seealso>
+	converted into the <c><anno>Unit</anno></c> passed as argument.</p>
+
+	<p>Same as calling	
+	<seealso marker="#convert_time_unit/3"><c>erlang:convert_time_unit</c></seealso><c>(</c><seealso marker="#time_offset/0"><c>erlang:time_offset()</c></seealso><c>, native, <anno>Unit</anno>)</c>
+	however optimized for commonly used <c><anno>Unit</anno></c>s.</p>
+      </desc>
+    </func>
+    <func>
+      <name name="timestamp" arity="0"/>
+      <type name="timestamp"/>
+      <fsummary>Current Erlang System time</fsummary>
+      <desc>
+	<p>Returns current
+	<seealso marker="time_correction#Erlang_System_Time">Erlang system time</seealso>
+	on the format <c>{MegaSecs, Secs, MicroSecs}</c>. This format is 
+	the same that <seealso marker="kernel:os#timestamp/0"><c>os:timestamp/0</c></seealso>
+	and the now deprecated <seealso marker="#now/0"><c>erlang:now/0</c></seealso>
+	uses. The reason for the existence of <c>erlang:timestamp()</c> is
+	purely to simplify usage for existing code that assumes this timestamp
+	format. Current Erlang system time can more efficiently be retrieved in
+	the time unit of your choice using
+	<seealso marker="#system_time/1"><c>erlang:system_time/1</c></seealso>.</p>
+
+	<p>The <c>erlang:timestamp()</c> BIF is equivalent to:</p><code type="none">
+timestamp() ->
+    ErlangSystemTime = erlang:system_time(micro_seconds),
+    MegaSecs = ErlangSystemTime div 1000000000000,
+    Secs = ErlangSystemTime div 1000000 - MegaSecs*1000000,
+    MicroSecs = ErlangSystemTime rem 1000000,
+    {MegaSecs, Secs, MicroSecs}.</code>
+        <p>It however use a native implementation which does
+	not build garbage on the heap and with slightly better
+	performance.</p>
+
+	<note><p>This time is <em>not</em> a monotonically increasing time
+	in the general case. For more information, see the documentation of
+	<seealso marker="time_correction#Time_Warp_Modes">time warp modes</seealso> in the
+	ERTS User's Guide.</p></note>
+      </desc>
+
+    </func>
+    <func>
       <name name="tl" arity="1"/>
       <fsummary>Tail of a list</fsummary>
       <desc>
@@ -6815,7 +7564,9 @@ ok
               only allowed with <c>PidSpec==all</c>. If the host
               machine operating system does not support high resolution
               CPU time measurements, <c>trace/3</c> exits with
-              <c>badarg</c>.</p>
+              <c>badarg</c>. Note that most operating systems do
+              not synchronize this value across cores, so be prepared
+              that time might seem to go backwards when using this option.</p>
           </item>
           <tag><c>arity</c></tag>
           <item>
@@ -7436,6 +8187,100 @@ ok
       </desc>
     </func>
     <func>
+      <name name="unique_integer" arity="0"/>
+      <fsummary>Get a unique integer value</fsummary>
+      <desc>
+	<p>Generates and returns an
+	<seealso marker="doc/efficiency_guide:advanced#unique_integers">integer
+	unique on current runtime system instance</seealso>. The same as calling
+	<seealso marker="#unique_integer/1"><c>erlang:unique_integer([])</c></seealso>.</p>
+      </desc>
+    </func>
+    <func>
+      <name name="unique_integer" arity="1"/>
+      <fsummary>Get a unique integer value</fsummary>
+      <desc>
+	<p>Generates and returns an
+	<seealso marker="doc/efficiency_guide:advanced#unique_integers">integer
+	unique on current runtime system
+	instance</seealso>. The integer is unique in the
+	sense that this BIF, using the same set of
+	modifiers, will not return the same integer more
+	than once on the current runtime system instance.
+	Each integer value can of course be constructed
+	by other means.</p>
+
+	<p>By default, i.e. when <c>[]</c> is passed as
+	<c><anno>ModifierList</anno></c>, both negative and
+	positive integers will be returned. This is order
+	to be able to utilize the range of integers that do
+	not need to be heap allocated as much as possible.
+	By default the returned integers are also only
+	guaranteed to be unique, i.e., any integer returned
+	may be either smaller, or larger than previously
+	returned integers.</p>
+
+	<p>Currently valid <c><anno>Modifier</anno></c>s:</p>
+	<taglist>
+
+	  <tag>positive</tag>
+	  <item><p>Return only positive integers.</p>
+	  <p>Note that by passing the <c>positive</c> modifier
+	  you will get heap allocated integers (big-nums)
+	  quicker.</p>
+	  </item>
+
+	  <tag>monotonic</tag>
+	  <item><p>Return
+	  <seealso marker="time_correction#Strictly_Monotonically_Increasing">strictly
+	  monotonically increasing</seealso> integers
+	  corresponding to creation time. That is, the integer
+	  returned will always be larger than previously
+	  returned integers on the current runtime system
+	  instance.</p>
+	  <p>These values can be used when ordering events
+	  on the runtime system instance. That is, if both
+	  <c>X = erlang:unique_integer([monotonic])</c> and
+	  <c>Y = erlang:unique_integer([monotonic])</c> are
+	  executed by different processes (or the same
+	  process) on the same runtime system instance and
+	  <c>X &lt; Y</c> we know that <c>X</c> was created
+	  before <c>Y</c>.</p>
+	  <warning><p>Strictly monotonically increasing values
+	  are inherently quite expensive to generate and scales
+	  poorly. This since the values needs to be
+	  synchronized. That is, do not pass the <c>monotonic</c>
+	  modifier unless you really need strictly monotonically
+	  increasing values.</p></warning>
+	  </item>
+
+	</taglist>
+
+	<p>All currently valid <c><anno>Modifier</anno></c>s
+	can be combined. Repeated (valid)
+	<c><anno>Modifier</anno></c>s in the <c>ModifierList</c>
+	are ignored.</p>
+
+	<note><p>Note that the set of integers returned by
+	<c>unique_integer/1</c> using diffrent sets of
+	<c><anno>Modifier</anno></c>s <em>will overlap</em>.
+	For example, by calling	<c>unique_integer([monotonic])</c>,
+	and <c>unique_integer([positive, monotonic])</c>
+	repeatedly, you will eventually see some integers being
+	returned by both calls.</p></note>
+
+        <p>Failures:</p>
+	<taglist>
+	  <tag><c>badarg</c></tag>
+	  <item>if <c><anno>ModifierList</anno></c> is not a
+	  proper list.</item>
+	  <tag><c>badarg</c></tag>
+	  <item>if <c><anno>Modifier</anno></c> is not a
+	  valid modifier.</item>
+	</taglist>
+      </desc>
+    </func>
+    <func>
       <name name="unlink" arity="1"/>
       <fsummary>Remove a link, if there is one, to another process or port</fsummary>
       <desc>
diff --git a/erts/doc/src/init.xml b/erts/doc/src/init.xml
index 09b5493341..c5a1a92b92 100644
--- a/erts/doc/src/init.xml
+++ b/erts/doc/src/init.xml
@@ -248,7 +248,7 @@
           evaluation), Erlang stops with an error message. Here is an
           example that seeds the random number generator:</p>
         <pre>
-% <input>erl -eval '{X,Y,Z}' = now(), random:seed(X,Y,Z).'</input></pre>
+% <input>erl -eval '{X,Y,Z} = now(), random:seed(X,Y,Z).'</input></pre>
         <p>This example uses Erlang as a hexadecimal calculator:</p>
         <pre>
 % <input>erl -noshell -eval 'R = 16#1F+16#A0, io:format("~.16B~n", [R])' \\</input>
diff --git a/erts/doc/src/match_spec.xml b/erts/doc/src/match_spec.xml
index 334b47d34c..b4cc8e9f78 100644
--- a/erts/doc/src/match_spec.xml
+++ b/erts/doc/src/match_spec.xml
@@ -76,22 +76,26 @@
        { GuardFunction, ConditionExpression, ... }
       </item>
       <item>BoolFunction ::= <c><![CDATA[is_atom]]></c> |
-      <c><![CDATA[is_float]]></c> | <c><![CDATA[is_integer]]></c> | <c><![CDATA[is_list]]></c> |
-      <c><![CDATA[is_number]]></c> | <c><![CDATA[is_pid]]></c> | <c><![CDATA[is_port]]></c> |
-      <c><![CDATA[is_reference]]></c> | <c><![CDATA[is_tuple]]></c> | <c><![CDATA[is_binary]]></c> |
-      <c><![CDATA[is_function]]></c> | <c><![CDATA[is_record]]></c> | <c><![CDATA[is_seq_trace]]></c> |
-      <c><![CDATA['and']]></c> | <c><![CDATA['or']]></c> | <c><![CDATA['not']]></c> | <c><![CDATA['xor']]></c> | 
-      <c><![CDATA[andalso]]></c> | <c><![CDATA[orelse]]></c></item>
+        <c><![CDATA[is_float]]></c> | <c><![CDATA[is_integer]]></c> |
+        <c><![CDATA[is_list]]></c> | <c><![CDATA[is_number]]></c> |
+        <c><![CDATA[is_pid]]></c> | <c><![CDATA[is_port]]></c> |
+        <c><![CDATA[is_reference]]></c> | <c><![CDATA[is_tuple]]></c> |
+        <c><![CDATA[is_map]]></c> | <c><![CDATA[is_binary]]></c> |
+        <c><![CDATA[is_function]]></c> | <c><![CDATA[is_record]]></c> |
+        <c><![CDATA[is_seq_trace]]></c> | <c><![CDATA['and']]></c> |
+        <c><![CDATA['or']]></c> | <c><![CDATA['not']]></c> |
+        <c><![CDATA['xor']]></c> | <c><![CDATA[andalso]]></c> |
+        <c><![CDATA[orelse]]></c></item>
       <item>ConditionExpression ::= ExprMatchVariable | { GuardFunction } |
        { GuardFunction, ConditionExpression, ... } | TermConstruct
       </item>
       <item>ExprMatchVariable ::= MatchVariable (bound in the MatchHead) | 
       <c><![CDATA['$_']]></c> | <c><![CDATA['$$']]></c></item>
-      <item>TermConstruct = {{}} | {{ ConditionExpression, ... }} | 
-      <c><![CDATA[[]]]></c> | [ConditionExpression, ...] | NonCompositeTerm | Constant
-      </item>
-      <item>NonCompositeTerm ::= term() (not list or tuple)
-      </item>
+      <item>TermConstruct = {{}} | {{ ConditionExpression, ... }} |
+        <c><![CDATA[[]]]></c> | [ConditionExpression, ...] |
+        <c><![CDATA[#{}]]></c> | #{term() => ConditionExpression, ...} |
+        NonCompositeTerm | Constant</item>
+      <item>NonCompositeTerm ::= term() (not list or tuple or map)</item>
       <item>Constant ::= {<c><![CDATA[const]]></c>, term()}
       </item>
       <item>GuardFunction ::= BoolFunction | <c><![CDATA[abs]]></c> |
@@ -134,22 +138,26 @@
        { GuardFunction, ConditionExpression, ... }
       </item>
       <item>BoolFunction ::= <c><![CDATA[is_atom]]></c> |
-      <c><![CDATA[is_float]]></c> | <c><![CDATA[is_integer]]></c> | <c><![CDATA[is_list]]></c> |
-      <c><![CDATA[is_number]]></c> | <c><![CDATA[is_pid]]></c> | <c><![CDATA[is_port]]></c> |
-      <c><![CDATA[is_reference]]></c> | <c><![CDATA[is_tuple]]></c> | <c><![CDATA[is_binary]]></c> |
-      <c><![CDATA[is_function]]></c> | <c><![CDATA[is_record]]></c> | <c><![CDATA[is_seq_trace]]></c> |
-      <c><![CDATA['and']]></c> | <c><![CDATA['or']]></c> | <c><![CDATA['not']]></c> | <c><![CDATA['xor']]></c> |
-      <c><![CDATA[andalso]]></c> | <c><![CDATA[orelse]]></c></item>
+        <c><![CDATA[is_float]]></c> | <c><![CDATA[is_integer]]></c> |
+        <c><![CDATA[is_list]]></c> | <c><![CDATA[is_number]]></c> |
+        <c><![CDATA[is_pid]]></c> | <c><![CDATA[is_port]]></c> |
+        <c><![CDATA[is_reference]]></c> | <c><![CDATA[is_tuple]]></c> |
+        <c><![CDATA[is_map]]></c> | <c><![CDATA[is_binary]]></c> |
+        <c><![CDATA[is_function]]></c> | <c><![CDATA[is_record]]></c> |
+        <c><![CDATA[is_seq_trace]]></c> | <c><![CDATA['and']]></c> |
+        <c><![CDATA['or']]></c> | <c><![CDATA['not']]></c> |
+        <c><![CDATA['xor']]></c> | <c><![CDATA[andalso]]></c> |
+        <c><![CDATA[orelse]]></c></item>
       <item>ConditionExpression ::= ExprMatchVariable | { GuardFunction } |
        { GuardFunction, ConditionExpression, ... } | TermConstruct
       </item>
       <item>ExprMatchVariable ::= MatchVariable (bound in the MatchHead) |
       <c><![CDATA['$_']]></c> | <c><![CDATA['$$']]></c></item>
       <item>TermConstruct = {{}} | {{ ConditionExpression, ... }} |
-      <c><![CDATA[[]]]></c> | [ConditionExpression, ...] | NonCompositeTerm | Constant
-      </item>
-      <item>NonCompositeTerm ::= term() (not list or tuple)
-      </item>
+        <c><![CDATA[[]]]></c> | [ConditionExpression, ...] | #{} |
+        #{term() => ConditionExpression, ...} | NonCompositeTerm |
+        Constant</item>
+      <item>NonCompositeTerm ::= term() (not list or tuple or map)</item>
       <item>Constant ::= {<c><![CDATA[const]]></c>, term()}
       </item>
       <item>GuardFunction ::= BoolFunction | <c><![CDATA[abs]]></c> |
@@ -172,9 +180,10 @@
       <title>Functions allowed in all types of match specifications</title>
       <p>The different functions allowed in <c><![CDATA[match_spec]]></c> work like this:
         </p>
-      <p><em>is_atom, is_float, is_integer, is_list, is_number, is_pid, is_port, is_reference, is_tuple, is_binary, is_function: </em> Like the corresponding guard tests in
-        Erlang, return <c><![CDATA[true]]></c> or <c><![CDATA[false]]></c>.
-        </p>
+      <p><em>is_atom, is_float, is_integer, is_list, is_number, is_pid, is_port,
+        is_reference, is_tuple, is_map, is_binary, is_function:</em> Like the
+        corresponding guard tests in Erlang, return <c><![CDATA[true]]></c> or
+        <c><![CDATA[false]]></c>.</p>
       <p><em>is_record: </em>Takes an additional parameter, which SHALL
         be the result of <c><![CDATA[record_info(size, <record_type>)]]></c>,
         like in <c><![CDATA[{is_record, '$1', rectype, record_info(size, rectype)}]]></c>.
diff --git a/erts/doc/src/time_correction.xml b/erts/doc/src/time_correction.xml
index 7f7c28fc30..8af98acc19 100644
--- a/erts/doc/src/time_correction.xml
+++ b/erts/doc/src/time_correction.xml
@@ -21,8 +21,8 @@
 
     </legalnotice>
 
-    <title>Time and time correction in Erlang</title>
-    <prepared>Patrik Nyblom</prepared>
+    <title>Time and Time Correction in Erlang</title>
+    <prepared></prepared>
     <responsible></responsible>
     <docno></docno>
     <approved></approved>
@@ -31,6 +31,209 @@
     <rev>PA1</rev>
     <file>time_correction.xml</file>
   </header>
+
+  <section>
+    <title>New Extended Time Functionality</title>
+    <note><p>As of OTP 18 (ERTS version 7.0) the time functionality of
+    Erlang has been extended. This both includes a
+    <seealso marker="#The_New_Time_API">new API</seealso>
+    for time, as well as
+    <seealso marker="#Time_Warp_Modes">time warp
+    modes</seealso> which alters the behavior of the system when
+    system time changes.</p>
+    <p>The <seealso marker="#No_Time_Warp_Mode">default
+    time warp mode</seealso> has the same behavior as before, and the
+    old API will still work, so you are not required to change
+    anything unless you want to. However, <em>you are strongly
+    encouraged to use the new API</em> instead of the old API based
+    on <seealso marker="erlang#now/0"><c>erlang:now/0</c></seealso>.
+    <c>erlang:now/0</c> has been deprecated since it is and forever
+    will be a scalability bottleneck. By using the new API you will
+    automatically get scalability and performance improvements. This
+    will also enable you to use the
+    <seealso marker="#Multi_Time_Warp_Mode">multi time warp mode</seealso>
+    which improves accuracy, and precision of time measurements.</p></note>
+  </section>
+
+  <section>
+    <title>Some Terminology</title>
+    <p>In order to make it easier to understand this document we first
+    define some terminology. This is a mixture of our own terminology
+    (Erlang/OS system time, Erlang/OS monotonic time, time warp)
+    and globally accepted terminology.</p>
+
+    <marker id="Monotonically_Increasing"/>
+    <section>
+      <title>Monotonically Increasing</title>
+      <p>In a monotonically increasing sequence of values, all values
+      that have a predecessor are either larger than, or equal to its
+      predecessor.</p>
+    </section>
+
+    <marker id="Strictly_Monotonically_Increasing"/>
+    <section>
+      <title>Strictly Monotonically Increasing</title>
+      <p>In a strictly monotonically increasing sequence of values,
+      all values that have a predecessor are larger than its
+      predecessor.</p>
+    </section>
+
+    <marker id="UT1"/>
+    <section>
+      <title>UT1</title>
+      <p>Universal Time. Based on the rotation of the earth. Conceptually
+      mean solar time at 0° longitude.</p>
+    </section>
+
+    <marker id="UTC"/>
+    <section>
+      <title>UTC</title>
+      <p>Coordinated Universal Time. UTC almost align with
+      <seealso marker="#UT1">UT1</seealso>, however, UTC uses the
+      SI definition of a second which is not exactly of the same length
+      as the second used by UT1. This means that UTC slowly drifts from
+      UT1. In order to keep UTC relatively in sync with UT1, leap seconds
+      are inserted, and potentially also deleted. That is, an UTC day may
+      be 86400, 86401, or 86399 seconds long.</p>
+    </section>
+
+    <marker id="POSIX_Time"/>
+    <section>
+      <title>POSIX Time</title>
+      <p>Time since
+      <url href="http://pubs.opengroup.org/onlinepubs/9699919799/xrat/V4_xbd_chap03.html#tag_21_03_00_17">Epoch</url>.
+      Epoch is defined to be 00:00:00 <seealso marker="#UTC">UTC</seealso>,
+      January 1, 1970.
+      <url href="http://pubs.opengroup.org/onlinepubs/009604499/basedefs/xbd_chap04.html#tag_04_14">A day in POSIX time</url>
+      is defined to be exactly 86400 seconds long. Strangely enough
+      Epoch is defined to be a time in UTC, and UTC have another
+      definition of how long a day is. Quoting the Open Group
+      <url href="http://pubs.opengroup.org/onlinepubs/9699919799/xrat/V4_xbd_chap04.html#tag_21_04_15">"POSIX time is therefore not necessarily UTC, despite its appearance"</url>. The effect of this is that when an UTC leap second is
+      inserted, POSIX time either stops for a second, or repeats the
+      last second. If an UTC leap second would be deleted (has never
+      happened yet), POSIX time would make a one second leap forward.</p>
+    </section>
+
+    <marker id="Time_Resolution"/>
+    <section>
+      <title>Time Resolution</title>
+      <p>The shortest time interval that can be distinguished when
+      reading time values.</p>
+    </section>
+
+    <marker id="Time_Precision"/>
+    <section>
+      <title>Time Precision</title>
+      <p>The shortest time interval that can be be distinguished
+      repeatedly and reliably when reading time values. Precision
+      is limited by the
+      <seealso marker="#Time_Resolution">resolution</seealso>, but
+      resolution and precision might differ significantly.</p>
+    </section>
+
+    <marker id="Time_Accuracy"/>
+    <section>
+      <title>Time Accuracy</title>
+      <p>The correctness of time values.</p>
+    </section>
+
+    <marker id="Time_Warp"/>
+    <section>
+      <title>Time Warp</title>
+      <p>A time warp is a leap forwards or backwards in time. That
+      is, the difference of time values taken before and after the
+      time warp will not correspond to the actual elapsed time.</p>
+    </section>
+
+    <marker id="OS_System_Time"/>
+    <section>
+      <title>OS System Time</title>
+      <p>The operating systems view of
+      <seealso marker="#POSIX_Time">POSIX time</seealso>. It can be
+      retrieved by calling
+      <seealso marker="kernel:os#system_time/0"><c>os:system_time()</c></seealso>.
+      This may or may not be an accurate view of POSIX time. This time
+      may typically be adjusted both backwards and forwards without
+      limitation. That is, <seealso marker="#Time_Warp">time warps</seealso>
+      may be observed. You can get information about the Erlang runtime
+      system's source of OS system time by calling
+      <seealso marker="erlang#system_info_os_system_time_source"><c>erlang:system_info(os_system_time_source)</c></seealso>.</p>
+    </section>
+
+    <marker id="OS_Monotonic_Time"/>
+    <section>
+      <title>OS Monotonic Time</title>
+      <p>A monotonically increasing time provided by the operating
+      system. This time does not leap and have a relatively steady
+      frequency although not completely correct. However, it is not
+      uncommon that the OS monotonic time stops if the system is
+      suspended. This time typically increase since some
+      unspecified point in time that is not connected to
+      <seealso marker="#OS_System_Time">OS system time</seealso>. Note
+      that this type of time is not necessarily provided by all
+      operating systems. You can get information about the Erlang
+      runtime system's source of OS monotonic time by calling
+      <seealso marker="erlang#system_info_os_monotonic_time_source"><c>erlang:system_info(os_monotonic_time_source)</c></seealso>.</p>
+    </section>
+
+    <marker id="Erlang_System_Time"/>
+    <section>
+      <title>Erlang System Time</title>
+      <p>The Erlang runtime systems view of
+      <seealso marker="#POSIX_Time">POSIX time</seealso>. It can be
+      retrieved by calling
+      <seealso marker="erlang#system_time/0"><c>erlang:system_time()</c></seealso>.
+      This time may or may not be an accurate view of POSIX time, and may
+      or may not align with <seealso marker="#OS_System_Time">OS system
+      time</seealso>. The runtime system works towards aligning the two
+      system times. Depending on <seealso marker="#Time_Warp_Modes">time
+      warp mode</seealso> used, this may be achieved by letting the Erlang
+      system time perform a <seealso marker="#Time_Warp">time
+      warp</seealso>.</p>
+    </section>
+
+    <marker id="Erlang_Monotonic_Time"/>
+    <section>
+      <title>Erlang Monotonic Time</title>
+      <p>A monotonically increasing time provided by the
+      Erlang runtime system. The Erlang monotonic time increase since
+      some unspecified point in time. It can be retrieved by calling
+      <seealso marker="erlang#monotonic_time/0"><c>erlang:monotonic_time()</c></seealso>.
+      The
+      <seealso marker="#Time_Accuracy">accuracy</seealso>, and
+      <seealso marker="#Time_Precision">precision</seealso> of Erlang
+      monotonic time heavily depends on the accuracy and precision of
+      <seealso marker="#OS_Monotonic_Time">OS monotonic time</seealso>,
+      the accuracy and precision of
+      <seealso marker="#OS_System_Time">OS system time</seealso> as well
+      as on the
+      <seealso marker="#Time_Warp_Modes">time warp mode</seealso>
+      used. On a system that is lacking OS monotonic time, the Erlang
+      monotonic time can only guarantee monotonicity and can more or less
+      not give any other guarantees. The frequency adjustments made to
+      the Erlang monotonic time depends on the time warp mode
+      used.</p>
+
+      <p>Internally in the runtime system the Erlang monotonic
+      time is the "time engine" that is used for more or less
+      everything that has anything to do with time. All timers
+      regardless of it is a <c>receive ... after</c> timer, BIF timer,
+      or a timer in the <c>timer</c> module are triggered
+      relative Erlang monotonic time. Even
+      <seealso marker="#Erlang_System_Time">Erlang system
+      time</seealso> is based on Erlang monotonic time.
+      By adding current Erlang monotonic time with current time
+      offset you get current Erlang system time. Current time
+      offset can be retrieved by calling
+      <seealso marker="erlang#time_offset/0"><c>erlang:time_offset/0</c></seealso>.
+      </p>
+    </section>
+
+  </section>
+
+  <section>
+    <title>Introduction</title>
+
   <p>Time is vital to an Erlang program and, more importantly, <em>correct</em>
   time is vital to an Erlang program. As Erlang is a language with
   soft real time properties and we have the possibility to express
@@ -83,192 +286,592 @@
   microsecond resolution or much less, but generally it has a drift
   that is not to be ignored.</p>
 
-  <p>So we have this monotonic ticking and we have the wall clock
-  time. Two unreliable times that together can give us an estimate of
-  an actual wall clock time that does not jump around and that
-  monotonically moves forward. If the tick counter has a high
-  resolution, this is fairly easy to do, if the counter has a low
-  resolution, it's more expensive, but still doable down to
-  frequencies of 50-60 Hz (of the tick counter).</p>
-
-  <p>So the corrected time is the nearest approximation of an atomic
-  clock that is available on the computer. We want it to have the
-  following properties:</p>
-  <taglist>
-    <tag>Monotonic</tag>
-    <item>The clock should not move backwards</item>
-    <tag>Intervals should be near the truth</tag>
-    <item>We want the actual time (as measured by an atomic clock or
-    an astronomer) that passes between two time stamps, T1 and T2, to be as
-    near to T2 - T1 as possible.</item>
-    <tag>Tight coupling to the wall clock</tag>
-    <item>We want a timer that is to be fired when the wall clock
-    reaches a time in the future, to fire as near to that point in
-    time as possible</item>
-  </taglist>
-  <p>To meet all the criteria, we have to utilize both times in such a
-  way that Erlangs "corrected time" moves slightly slower or slightly
-  faster than the wall clock to get in sync with it. The word
-  "slightly" means a maximum of 1% difference to the wall clock time,
-  meaning that a sudden change in the wall clock of one minute, takes
-  100 minutes to fix, by letting all "corrected time" move 1% slower
-  or faster.</p>
-
-  <p>Needless to say, correcting for a faulty handling of daylight
-  saving time may be disturbing to a user comparing wall clock
-  time to for example calendar:now_to_local_time(erlang:now()). But
-  calendar:now_to_local_time/1 is not supposed to be used for presenting wall
-  clock time to the user.</p>
-
-  <p>Time correction is not perfect, but it saves you from the havoc
-  of clocks jumping around, which would make timers in your program
-  fire far to late or far to early and could bring your whole system
-  to it's knees (or worse) just because someone detected a small error
-  in the wall clock time of the server where your program runs. So
-  while it might be confusing, it is still a really good feature of
-  Erlang and you should not throw it away using time functions which
-  may give you higher benchmark results, not unless you really know
-  what you're doing.</p>
+  </section>
 
+  <marker id="Time_Correction"/>
   <section>
-    <title>What does time correction mean in my system?</title>
-    <p>Time correction means that Erlang estimates a time from current
-    and previous settings of the wall clock, and it uses a fairly
-    exact tick counter to detect when the wall clock time has jumped
-    for some reason, slowly adjusting to the new value.</p>
-
-    <p>In practice, this means that the difference between two calls
-    to time corrected functions, like erlang:now(), might differ up to
-    one percent from the corresponding calls to non time corrected
-    functions (like os:timestamp()). Furthermore, if comparing
-    calendar:local_time/0 to calendar:now_to_local_time(erlang:now()),
-    you might temporarily see a difference, depending on how well kept your
-    system is.</p>
-
-    <p>It is important to understand that it is (to the program)
-    always unknown if it is the wall clock time that moves in the
-    wrong pace or the Erlang corrected time. The only way to determine
-    that, is to have an external source of universally correct time. If
-    some such source is available, the wall clock time can be kept
-    nearly perfect at all times, and no significant difference will be
-    detected between erlang:now/0's pace and the wall clock's.</p>
-
-    <p>Still, the time correction will mean that your system keeps
-    it's real time characteristics very well, even when the wall clock
-    is unreliable.</p>
+    <title>Time Correction</title>
+    <p>If time correction is enabled, the Erlang runtime system
+    will make use of both
+    <seealso marker="#OS_System_Time">OS system time</seealso>
+    and <seealso marker="#OS_Monotonic_Time">OS monotonic time</seealso>,
+    in order to make adjustments of the frequency of the Erlang
+    monotonic clock. Time correction will ensure that
+    <seealso marker="#Erlang_Monotonic_Time">Erlang monotonic time</seealso>
+    will not warp, and that the frequency is relatively accurate.
+    The type of adjustments made to the frequency depends on the
+    time warp mode used. This will be discussed in more details in
+    the <seealso marker="#Time_Warp_Modes">time warp modes</seealso>
+    section below.</p>
+
+    <p>By default time correction will be enabled if support for
+    it on the specific platform exist. Support for it includes
+    both an OS monotonic time provided by the OS, and an
+    implementation in the Erlang runtime system utilizing the
+    OS monotonic time. You can check if your system has support
+    for OS monotonic time by calling
+    <seealso marker="erlang#system_info_os_monotonic_time_source"><c>erlang:system_info(os_monotonic_time_source)</c></seealso>,
+    and you can check if time correction is enabled on your
+    system by calling
+    <seealso marker="erlang#system_info_time_correction"><c>erlang:system_info(time_correction)</c></seealso>.</p>
+
+    <p>Time correction is enabled or disabled by passing the
+    <seealso marker="erl#+c"><c>+c [true|false]</c></seealso>
+    command line argument to <c>erl</c>.</p>
+
+    <p>If time correction is disabled, Erlang monotonic time
+    may warp forwards, it may stop and even freeze for extended
+    periods of time, and there are no guarantees that the frequency
+    of the Erlang monotonic clock is accurate or stable.</p>
+
+    <p><em>You typically never want to disable time correction</em>.
+    Previously there was a performance penalty associated with time
+    correction, but nowadays it is most often the other way around.
+    By disabling time correction you are likely to get bad scalability,
+    bad performance, and bad time measurements.</p>
   </section>
+
+
+  <marker id="Time_Warp_Safe_Code"/>
   <section>
-    <title>Where does Erlang use corrected time?</title>
-    <p>For all functionality where real time characteristics are
-    desirable, time correction is used. This basically means:</p>
-    <taglist>
-      <tag>erlang:now/0</tag>
-      <item>The infamous erlang:now/0 function uses time correction so
-      that differences between two "now-timestamps" will correspond to
-      other timeouts in the system. erlang:now/0 also holds other
-      properties, discussed later.</item>
-      <tag>receive ... after</tag>
-      <item>Timeouts on receive uses time correction to determine a
-      stable timeout interval.</item>
-      <tag>The timer module</tag>
-      <item>As the timer module uses other built in functions which
-      deliver corrected time, the timer module itself works with
-      corrected time.</item>
-      <tag>erlang:start_timer/3 and erlang:send_after/3</tag>
-      <item>The timer BIF's work with corrected time, so that they
-      will not fire prematurely or too late due to changes in the wall
-      clock time.</item>
-    </taglist>
-
-    <p>All other functionality in the system where erlang:now/0 or any
-    other time corrected functionality is used, will of course
-    automatically benefit from it, as long as it's not "optimized" to
-    use some other time stamp function (like os:timestamp/0).</p>
-
-    <p>Modules like calendar and functions like erlang:localtime/0 use
-    the wall clock time as it is currently set on the system. They
-    will not use corrected time. However, if you use a now-value and
-    convert it to local time, you will get a corrected local time
-    value, which may or may not be what you want. Typically older code
-    tend to use erlang:now/0 as a wall clock time, which is usually
-    correct (at least when testing), but might surprise you when
-    compared to other times in the system.</p>
+    <title>Time Warp Safe Code</title>
+    <p>Time warp safe code is code that is able to handle
+    a <seealso marker="#Time_Warp">time warp</seealso> of
+    <seealso marker="#Erlang_System_Time">Erlang system time</seealso>.
+    </p>
+
+    <p><seealso marker="erlang#now/0"><c>erlang:now/0</c></seealso>
+    behaves very bad when Erlang system time warps. When Erlang
+    system time do a time warp backwards, the values returned
+    from <c>erlang:now/0</c> will freeze (if you disregard the
+    micro second increments made due to the actual call) until
+    OS system time reach the point of the last value returned by
+    <c>erlang:now/0</c>. This freeze might continue for very
+    long periods of time. It might take years, decades,
+    and even longer than this until the freeze stops.</p>
+
+    <p>All uses of <c>erlang:now/0</c> are not necessarily
+    time warp unsafe. If you do not use it to get time, it
+    will be time warp safe. However <em>all uses of
+    <c>erlang:now/0</c> are suboptimal</em> from a performance
+    and scalability perspective. So you really want to replace
+    the usage of it with other functionality. For examples
+    of how to replace the usage of <c>erlang:now/0</c>,
+    see the <seealso marker="#Dos_and_Donts">Dos and Donts</seealso>
+    section.</p>
   </section>
+
+  <marker id="Time_Warp_Modes"/>
   <section>
-    <title>What is erlang:now/0 really?</title>
-    <p>erlang:now/0 is a function designed to serve multiple purposes
-    (or a multi-headed beast if you're a VM designer). It is expected
-    to hold the following properties:</p>
-    <taglist>
-      <tag>Monotonic</tag>
-      <item>erlang:now() never jumps backwards - it always moves
-      forward</item>
-      <tag>Interval correct</tag>
-      <item>The interval between two erlang:now() calls is expected to
-      correspond to the correct time in real life (as defined by an
-      atomic clock, or better)</item>
-      <tag>Absolute correctness</tag>
-      <item>The erlang:now/0 value should be possible to convert to an
-      absolute and correct date-time, corresponding to the real world
-      date and time (the wall clock)</item>
-      <tag>System correspondence</tag>
-      <item>The erlang:now/0 value converted to a date-time is
-      expected to correspond to times given by other programs on the
-      system (or by functions like os:timestamp/0)</item>
-      <tag>Unique</tag>
-      <item>No two calls to erlang:now on one Erlang node should
-      return the same value</item>
-    </taglist>
-    <p>All these requirements are possible to uphold at the same
-    time if (and only if):</p>
-    <taglist>
-      <tag>The wall clock time of the system is perfect</tag>
-      <item>The system (Operating System) time needs to be perfectly
-      in sync with the actual time as defined by an atomic clock or
-      a better time source. A good installation using NTP, and that is
-      up to date before Erlang starts, will have properties that for
-      most users and programs will be near indistinguishable from the
-      perfect time. Note that any larger corrections to the time done
-      by hand, or after Erlang has started, will partly (or
-      temporarily) invalidate some of the properties, as the time is
-      no longer perfect.</item>
-      <tag>Less than one call per microsecond to erlang:now/0 is
-      done</tag>
-      <item>This means that at <em>any</em> microsecond interval in
-      time, there can be no more than one call to erlang:now/0 in the
-      system. However, for the system not to loose it's properties
-      completely, it's enough that it on average is no more than one
-      call per microsecond (in one Erlang node).</item>
-    </taglist>
-    <p>The uniqueness property of erlang:now/0 is the most limiting
-    property. It means that erlang:now() maintains a global state and
-    that there is a hard-to-check property of the system that needs to
-    be maintained. For most applications this is still not a problem,
-    but a future system might very well manage to violate the
-    frequency limit on the calls globally. The uniqueness property is
-    also quite useless, as there are globally unique references that
-    provide a much better unique value to programs. However the
-    property will need to be maintained unless a really subtle
-    backward compatibility issue is to be introduced.</p>
+    <title>Time Warp Modes</title>
+
+    <p>Current <seealso marker="#Erlang_System_Time">Erlang system
+    time</seealso> is determined by adding current
+    <seealso marker="erlang#monotonic_time/0">Erlang monotonic time</seealso>
+    with current
+    <seealso marker="erlang#time_offset/0">time offset</seealso>. The
+    time offset is managed differently depending on which time
+    warp mode you use. The time warp mode is set by passing the
+    <seealso marker="erl#+C_"><c>+C
+    [no_time_warp|single_time_warp|multi_time_warp]</c></seealso>
+    command line argument to <c>erl</c>.</p>
+
+    <marker id="No_Time_Warp_Mode"/>
+    <section>
+      <title>No Time Warp Mode</title>
+      <p>The time offset is determined at runtime system start
+      and will after this not change. This is the default behavior.
+      Not because it is the best mode (which it isn't). It is
+      default <em>only</em> because this is how the runtime system
+      always has behaved up until ERTS version 7.0, and you have to
+      ensure that your Erlang code that may execute during a time
+      warp is <seealso marker="#Time_Warp_Safe_Code">time warp
+      safe</seealso> before you can enable other modes.</p>
+
+      <p>Since the time offset is not allowed to change, time
+      correction needs to adjust the frequency of the Erlang
+      monotonic clock in order to smoothly align Erlang system
+      time with OS system time. A big downside of this approach
+      is that we on purpose will use a faulty frequency on the
+      Erlang monotonic clock if adjustments are needed. This
+      error may be as big as 1%. This error will show up in all
+      time measurements in the runtime system.</p>
+
+      <p>If time correction is not enabled, the Erlang monotonic
+      time will freeze when the OS system time leap backwards.
+      The freeze of the monotonic time will continue until
+      OS system time catch up. The freeze may continue for
+      a very long time. When OS system time leaps forwards,
+      Erlang monotonic time will also leap forward.</p>
+    </section>
+
+    <marker id="Single_Time_Warp_Mode"/>
+    <section>
+      <title>Single Time Warp Mode</title>
+      <p>This mode is more or less a backwards compatibility mode
+      as of its introduction.</p>
+      <p>On an embedded system it is not uncommon that the system
+      has no power supply at all, not even a battery, when it is
+      shut off. The system clock on such a system will typically
+      be way off when the system boots. If the
+      <seealso marker="#No_Time_Warp_Mode">no time warp mode</seealso>
+      is used, and the Erlang runtime system is started before
+      the OS system time has been corrected, the Erlang system
+      time may be wrong for a very long time, even centuries or
+      more.</p>
+      <p>If you for some reason need to use Erlang code that
+      is not
+      <seealso marker="#Time_Warp_Safe_Code">time warp safe</seealso>,
+      and you need to start the Erlang runtime system before the OS
+      system time has been corrected, you may want to use the single
+      time warp mode. Note that there are limitations to when you can
+      execute time warp unsafe code using this mode. If it is possible
+      to only utilize time warp safe code, it is <em>much</em> better
+      to use the <seealso marker="#Multi_Time_Warp_Mode">multi time
+      warp mode</seealso> instead.
+      </p>
+
+      <p>Using the single time warp mode, the time offset is
+      handled in two phases:</p>
+
+      <taglist>
+	<tag>Preliminary Phase</tag>
+	<item>
+	  <p>The preliminary phase starts when the runtime
+	  system starts. A preliminary time offset based on
+	  current OS system time is determined. This offset will
+	  from now on be fixed during the whole preliminary phase.</p>
+
+	  <p>If time correction is enabled, adjustments to the
+	  Erlang monotonic clock will be made to keep its
+	  frequency as correct as possible, but <em>no</em>
+	  adjustments will be made trying to align Erlang system
+	  time and OS system time. That is, during the preliminary
+	  Erlang system time and OS system time might diverge
+	  from each other, and no attempt to prevent this will
+	  be made.</p>
+
+	  <p>If time correction is disabled, changes in OS system
+	  time will effect the monotonic clock the same way as
+	  when the <seealso marker="#No_Time_Warp_Mode">no time warp
+	  mode</seealso> is used.</p>
+	</item>
+
+	<tag>Final Phase</tag>
+	<item>
+
+	  <p>The final phase begin when the user finalize the time
+	  offset by calling
+	  <seealso marker="erlang#system_flag_time_offset"><c>erlang:system_flag(time_offset, finalize)</c></seealso>.
+	  The finalization can only be performed once.
+	  </p>
+
+	  <p>During finalization, the time offset is adjusted and
+	  fixated so that current Erlang system time align with
+	  current OS system time. Since the time offset may
+	  change during the finalization, the Erlang system time
+	  may do a time warp at this point. The time offset will
+	  from now on be fixed until the runtime system terminates.
+	  If time correction has been enabled, the time
+	  correction will from now on also make adjustments
+	  in order to align Erlang system time with OS system
+	  time. When the system is in the final phase it behaves
+	  exactly as in the <seealso marker="#No_Time_Warp_Mode">no
+	  time warp mode</seealso>.</p>
+
+	</item>
+      </taglist>
+
+      <p>In order for this to work properly there are two
+      requirements that the user needs to ensure are
+      satisfied:</p>
+
+      <taglist>
+	<tag>Forward Time Warp</tag>
+	<item><p>The time warp made when finalizing the time offset
+	can only be done forwards without encountering problems.
+	This implies that the user has to ensure that the OS
+	system time is set to a time earlier or equal to actual
+	POSIX time before starting the Erlang runtime system. If
+	you are not completely sure the OS system time is correct,
+	set it to a time that is guaranteed to be earlier than
+	actual POSIX time before starting the Erlang runtime
+	system just to be safe.</p></item>
+
+	<tag>Finalize Correct OS System Time</tag>
+	<item><p>The OS system time needs to be correct when the
+	the user finalizes the time offset.</p></item>
+      </taglist>
+
+      <p>If these requirements are not fulfilled, the system
+      may behave very bad.
+      </p>
+
+      <p>Assuming that the requirements above are fulfilled,
+      time correction is enabled, and that the OS system time
+      is adjusted using some time adjustment protocol like NTP
+      or similar, only small adjustments of the Erlang monotonic
+      time should be needed in order to keep system times
+      aligned after finilization. As long as the system is not
+      suspended, the largest adjustments needed should be for
+      inserted (or deleted) leap seconds.</p>
+
+      <warning><p>In order to be able to use this mode you have
+      to ensure that all Erlang code that will execute in
+      both phases are
+      <seealso marker="#Time_Warp_Safe_Code">time warp
+      safe</seealso>.</p>
+      <p>Code that only execute in the final phase does not have
+      to be able to cope with the time warp.</p></warning>
+
+    </section>
+
+    <marker id="Multi_Time_Warp_Mode"/>
+    <section>
+      <title>Multi Time Warp Mode</title>
+
+      <p><em>Multi time warp mode in combination with time
+      correction is the preferred configuration</em>. This since,
+      on almost all platforms, the Erlang runtime system will have
+      better performance, will scale better, will behave better,
+      and since the accuracy, and precision of time measurements
+      will be better. Only Erlang runtime systems executing on
+      ancient platforms will benefit from another configuration.</p>
+
+      <p>The time offset may change at any time without limitations.
+      That is, Erlang system time may perform time warps both
+      forwards and backwards at <em>any</em> time. Since we align
+      the Erlang system time with the OS system time by changing
+      the time offset, we can enable a time correction that tries
+      to adjust the frequency of the Erlang monotonic clock to be as
+      correct as possible. This will make time measurements using
+      the Erlang monotonic time more accurate and precise.</p>
+
+      <p>If time correction is disabled, Erlang monotonic time
+      will leap forward if OS system time leaps forward. If the
+      OS system time leaps backwards, Erlang monotonic time will
+      stop briefly but it does not freeze for extended periods
+      of time. This since the time offset is changed in order to
+      align Erlang system time with OS system time.</p>
+
+      <warning><p>In order to be able to use this mode you have
+      to ensure that all Erlang code that will execute on the
+      runtime system is
+      <seealso marker="#Time_Warp_Safe_Code">time warp
+      safe</seealso>.</p></warning>
+    </section>
   </section>
+
+  <marker id="The_New_Time_API"/>
   <section>
-    <title>Should I use erlang:now/0 or os:timestamp/0</title>
-    <p>The simple answer is to use erlang:now/0 for everything where
-    you want to keep real time characteristics, but use os:timestamp
-    for things like logs, user communication and debugging (typically
-    timer:ts uses os:timestamp, as it is a test tool, not a real world
-    application API). The benefit of using os:timestamp/0 is that it's
-    faster and does not involve any global state (unless the operating
-    system has one). The downside is that it will be vulnerable to wall
-    clock time changes.</p>
+    <title>The New Time API</title>
+
+    <p>The old time API is based on
+    <seealso marker="erlang#now/0"><c>erlang:now/0</c></seealso>.
+    The major issue with <c>erlang:now/0</c> is that it was
+    intended to be used for so many unrelated things. This
+    tied these unrelated operations together and unnecessarily
+    caused performance, scalability as well as accuracy, and
+    precision issues for operations that do not need to have
+    such issues. The new API spreads different functionality
+    over multiple functions in order to improve on this.</p>
+
+    <p>In order to be backwards compatible <c>erlang:now/0</c> will
+    remain as is, but <em>you are strongly discouraged from using
+    it</em>. A lot of uses of <c>erlang:now/0</c> will also
+    prevent you from using the new
+    <seealso marker="#Multi_Time_Warp_Mode">multi time warp
+    mode</seealso> which is an important part of this
+    new time functionality improvement.</p>
+
+    <p>Some of the new BIFs on some systems, perhaps surprisingly,
+    return negative integer values on a newly started run time
+    system. This is not a bug, but a memory usage optimization.</p>
+
+    <p>The new API consists of a number of new BIFs:</p>
+    <list>
+      <item><p><seealso marker="erlang#convert_time_unit/3"><c>erlang:convert_time_unit/3</c></seealso></p></item>
+      <item><p><seealso marker="erlang#monotonic_time/0"><c>erlang:monotonic_time/0</c></seealso></p></item>
+      <item><p><seealso marker="erlang#monotonic_time/1"><c>erlang:monotonic_time/1</c></seealso></p></item>
+      <item><p><seealso marker="erlang#system_time/0"><c>erlang:system_time/0</c></seealso></p></item>
+      <item><p><seealso marker="erlang#system_time/1"><c>erlang:system_time/1</c></seealso></p></item>
+      <item><p><seealso marker="erlang#time_offset/0"><c>erlang:time_offset/0</c></seealso></p></item>
+      <item><p><seealso marker="erlang#time_offset/1"><c>erlang:time_offset/1</c></seealso></p></item>
+      <item><p><seealso marker="erlang#timestamp/0"><c>erlang:timestamp/0</c></seealso></p></item>
+      <item><p><seealso marker="erlang#unique_integer/0"><c>erlang:unique_integer/0</c></seealso></p></item>
+      <item><p><seealso marker="erlang#unique_integer/1"><c>erlang:unique_integer/1</c></seealso></p></item>
+      <item><p><seealso marker="kernel:os#system_time/0"><c>os:system_time/0</c></seealso></p></item>
+      <item><p><seealso marker="kernel:os#system_time/1"><c>os:system_time/1</c></seealso></p></item>
+    </list>
+    <p>and a number of extensions of existing BIFs:</p>
+    <list>
+      <item><p><seealso marker="erlang#monitor/2"><c>erlang:monitor(time_offset, clock_service)</c></seealso></p></item>
+      <item><p><seealso marker="erlang#system_flag_time_offset"><c>erlang:system_flag(time_offset, finalize)</c></seealso></p></item>
+      <item><p><seealso marker="erlang#system_info_os_monotonic_time_source"><c>erlang:system_info(os_monotonic_time_source)</c></seealso></p></item>
+      <item><p><seealso marker="erlang#system_info_os_system_time_source"><c>erlang:system_info(os_system_time_source)</c></seealso></p></item>
+      <item><p><seealso marker="erlang#system_info_time_offset"><c>erlang:system_info(time_offset)</c></seealso></p></item>
+      <item><p><seealso marker="erlang#system_info_time_warp_mode"><c>erlang:system_info(time_warp_mode)</c></seealso></p></item>
+      <item><p><seealso marker="erlang#system_info_time_correction"><c>erlang:system_info(time_correction)</c></seealso></p></item>
+      <item><p><seealso marker="erlang#system_info_start_time"><c>erlang:system_info(start_time)</c></seealso></p></item>
+    </list>
+
+    <marker id="The_New_Erlang_Monotonic_Time"/>
+    <section>
+      <title>The New Erlang Monotonic Time</title>
+      <p>The Erlang monotonic time as such is new as of ERTS
+      version 7.0. It has been introduced in order to be able
+      to detach time measurements such as elapsed time from
+      calender time. It is very common that one is interested
+      in measuring elapsed time or specifying a time relative
+      to another point in time without having any need to know
+      what the involved times are in UTC or any other
+      globally defined time scale. By introducing a time scale
+      that has a local definition of where it starts, it is
+      possible to manage time that do not concern calender
+      time on that time scale. Erlang monotonic time use
+      such a time scale with a locally defined start.</p>
+
+      <p>The introduction of Erlang monotonic time gives us
+      the possibility to adjust the two Erlang times (Erlang
+      monotonic time and Erlang system time) separately. By
+      doing this, accuracy of elapsed time does not have to
+      suffer just because the system time happened to be
+      wrong at some point in time. Separate adjustments
+      of the two times are only performed in the time warp
+      modes, and only fully separated in the
+      <seealso marker="#Multi_Time_Warp_Mode">multi
+      time warp mode</seealso>. All other modes than the
+      multi time warp mode are there for backwards
+      compatibility reasons, and when using these the
+      accuracy of Erlang monotonic time suffer since
+      the adjustments of Erlang monotonic time in these
+      modes are more or less tied to the Erlang system
+      time.</p>
+
+      <p>The adjustment of system time could have been made
+      smother than using a time warp approach, but we think
+      that would be a bad choice. Since we are able to
+      express and measure time that aren't connected to
+      calender time by the use of Erlang monotonic time, it
+      is better to expose the change in Erlang system time
+      immediately. This since it makes it possible for the
+      Erlang applications executing on the system to react
+      on the change in system time as soon as possible. This
+      is also more or less exactly how most OSes handle this
+      (OS monotonic time and OS system time). By adjusting
+      system time smoothly we would just hide the fact that
+      system time changed and make it harder for the Erlang
+      applications to react to the change in a sensible way.</p>
+
+      <p>In order to be able to react to a change in Erlang
+      system time you have to be able to detect that it
+      happened. The change in Erlang system time occurs when
+      current time offset is changed. We have therefore
+      introduced the possibility to monitor the time offset
+      using
+      <seealso marker="erlang#monitor/2"><c>erlang:monitor(time_offset, clock_service)</c></seealso>. A process monitoring the time
+      offset will be sent a message on the following format
+      when the time offset is changed:</p>
+      <code type="none">{'CHANGE', MonitorReference, time_offset, clock_service, NewTimeOffset}</code>
+    </section>
+
+    <marker id="Unique_Values"/>
+    <section>
+      <title>Unique Values</title>
+      <p>Besides reporting time <c>erlang:now/0</c> also
+      produce unique and strictly monotonically increasing
+      values. In order to detach this functionality from
+      time measurements we have introduced
+      <seealso marker="erlang#unique_integer/1"><c>erlang:unique_integer()</c></seealso>.
+      </p>
+    </section>
+
+    <marker id="Dos_and_Donts"/>
+    <section>
+      <title>Dos and Don'ts</title>
+      <p>Previously <c>erlang:now/0</c> was the only option for doing
+      quite a lot of things. We will look at a few different things
+      <c>erlang:now/0</c> could be used for, and how you want to do
+      this using the new API:</p>
+
+      <marker id="Dos_and_Donts_Retrieve_Erlang_System_Time"/>
+      <section>
+	<title>Retrieve Erlang System Time</title>
+	<dont>
+	  <p>
+	    use <c>erlang:now/0</c> in order to retrieve current Erlang
+	    system time.
+	  </p>
+	</dont>
+	<do>
+	  <p>
+	    use
+	    <seealso marker="erlang#system_time/1"><c>erlang:system_time/1</c></seealso>
+	    in order to retrieve current Erlang system time on the
+	    <seealso marker="erlang#type_time_unit">time unit</seealso>
+	    of your choice.</p>
+	    <p>If you want the same format as returned by <c>erlang:now/0</c>, use
+	    <seealso marker="erlang#timestamp/0"><c>erlang:timestamp/0</c></seealso>.
+	    </p>
+	</do>
+      </section>
+
+      <marker id="Dos_and_Donts_Measure_Elapsed_Time"/>
+      <section>
+	<title>Measure Elapsed Time</title>
+	<dont>
+	  <p>
+	    take timestamps with <c>erlang:now/0</c> and calculate
+	    the difference in time with
+	    <seealso marker="stdlib:timer#now_diff/2"><c>timer:now_diff/2</c></seealso>.
+	  </p>
+	</dont>
+	<do>
+	  <p>
+	    take timestamps with
+	    <seealso marker="erlang#monotonic_time/0"><c>erlang:monotonic_time/0</c></seealso>
+	    and calculate the time difference using ordinary subtraction.
+	    The result will be in <c>native</c>
+	    <seealso marker="erlang#type_time_unit">time unit</seealso>.
+	    If you want to convert the
+	    result to another time unit you can do this using
+	    <seealso marker="erlang#convert_time_unit/3"><c>erlang:convert_time_unit/3</c></seealso>.
+	    </p>
+	    <p>Another easier way of doing this is to use
+	    <seealso marker="erlang#monotonic_time/1"><c>erlang:monotonic_time/1</c></seealso>
+	    with desired time unit. However, you may lose accuracy,
+	    and precision this way.
+	    </p>
+	</do>
+      </section>
+
+      <marker id="Dos_and_Donts_Determine_Order_of_Events"/>
+      <section>
+	<title>Determine Order of Events</title>
+	<dont>
+	  <p>
+	    determine the order of events by saving a timestamp
+	    with <c>erlang:now/0</c> when the event happens.
+	  </p>
+	</dont>
+	<do>
+	  <p>
+	    determine the order of events by saving the integer
+	    returned by
+	    <seealso marker="erlang#unique_integer/1"><c>erlang:unique_integer([monotonic])</c></seealso>
+	    when the event happens. These integers will be strictly
+	    monotonically ordered on current runtime system instance
+	    corresponding to creation time.
+	  </p>
+	</do>
+      </section>
+
+      <marker id="Dos_and_Donts_Determine_Order_of_Events_With_Time_of_the_Event"/>
+      <section>
+	<title>Determine Order of Events With Time of the Event</title>
+	<dont>
+	  <p>
+	    determine the order of events by saving a timestamp
+	    with <c>erlang:now/0</c> when the event happens.
+	  </p>
+	</dont>
+	<do>
+	  <p>
+	    determine the order of events by saving a tuple
+	    containing
+	    <seealso marker="erlang#monotonic_time/0">monotonic time</seealso>
+	    and a <seealso marker="erlang#unique_integer/1">strictly
+	    monotonically increasing integer</seealso> like this:</p>
+	    <code type="none">
+Time = erlang:monotonic_time(),
+UMI = erlang:unique_integer([monotonic]),
+EventTag = {Time, UMI}</code>
+	    <p>These tuples will be strictly monotonically ordered
+	    on the current runtime system instance according to
+	    creation time. Note that it is important that the
+	    monotonic time is in the first element (the most
+	    significant element when comparing 2-tuples). Using
+	    the monotonic time in the tuples, you can calculate time
+	    between events.</p>
+	    <p>If you are interested in the Erlang system time at the
+	    time when the event occurred you can also save the time
+	    offset before or after saving the events using
+	    <seealso marker="erlang#time_offset/0"><c>erlang:time_offset/0</c></seealso>.
+	    Erlang monotonic time added with the time
+	    offset corresponds to Erlang system time.</p>
+	    <p>If you are executing in a mode where time offset
+	    may change and you want to be able to get the actual
+	    Erlang system time when the event occurred you can
+	    save the time offset as a third element in the tuple
+	    (the least significant element when comparing 3-tuples).</p>
+	</do>
+      </section>
+
+      <marker id="Dos_and_Donts_Create_a_Unique_Name"/>
+      <section>
+	<title>Create a Unique Name</title>
+	<dont>
+	  <p>
+	    use the values returned from <c>erlang:now/0</c>
+	    in order to create a name unique on the current
+	    runtime system instance.
+	  </p>
+	</dont>
+	<do>
+	  <p>
+	    use the value returned from
+	    <seealso marker="erlang#unique_integer/0"><c>erlang:unique_integer/0</c></seealso>
+	    in order to create a name unique on the current runtime system
+	    instance. If you only want positive integers, you can use
+	    <seealso marker="erlang#unique_integer/1"><c>erlang:unique_integer([positive])</c></seealso>.
+	  </p>
+	</do>
+      </section>
+
+      <marker id="Dos_and_Donts_Seed_Random_Number_Generation_With_a_Unique_Value"/>
+      <section>
+	<title>Seed Random Number Generation With a Unique Value</title>
+	<dont>
+	  <p>
+	    seed random number generation using <c>erlang:now()</c>.
+	  </p>
+	</dont>
+	<do>
+	  <p>
+	    seed random number generation using a combination of
+	    <seealso marker="erlang#monotonic_time/0"><c>erlang:monotonic_time()</c></seealso>,
+	    <seealso marker="erlang#time_offset/0"><c>erlang:time_offset()</c></seealso>,
+	    <seealso marker="erlang#unique_integer/0"><c>erlang:unique_integer()</c></seealso>, and other functionality.
+	  </p>
+	  </do>
+      </section>
+
+      <p>To sum this section up: <em>Don't use <c>erlang:now/0</c>!</em></p>
+    </section>
   </section>
+
+  <marker id="Supporting_Both_New_and_Old_OTP_Releases"/>
   <section>
-    <title>Turning off time correction</title>
-    <p>If, for some reason, time correction causes trouble and you are
-    absolutely confident that the wall clock on the system is nearly
-    perfect, you can turn off time correction completely by giving the
-    <c>+c</c> option to <c>erl</c>. The probability for this being a
-    good idea, is very low.</p>
+    <title>Supporting Both New and Old OTP Releases</title>
+    <p>Your code may be required to be able to run on a variety 
+    of OTP installations of different OTP releases. If so, you
+    can not just use the new API out of the box, since it will
+    not be available on old pre OTP 18 releases. The solution
+    is <em>not</em> to avoid using the new API, since your
+    code then won't be able to benefit from the scalability
+    and accuracy improvements made. Instead you want to use the
+    new API when available, and fall back on <c>erlang:now/0</c>
+    when it is not available. Fortunately almost all of the new
+    API can easily be implemented using existing primitives
+    (except for
+    <seealso marker="erlang#system_info_start_time"><c>erlang:system_info(start_time)</c></seealso>,
+    <seealso marker="erlang#system_info_os_monotonic_time_source"><c>erlang:system_info(os_monotonic_time_source)</c></seealso>, and
+    <seealso marker="erlang#system_info_os_system_time_source"><c>erlang:system_info(os_system_time_source)</c></seealso>).
+    By wrapping the API with functions that fall back on
+    <c>erlang:now/0</c> when the new API is not available,
+    and using these wrappers instead of using the API directly
+    the problem is solved. These wrappers can for example
+    be implemented as in
+    <url href="time_compat.erl"><c>$ERL_TOP/erts/example/time_compat.erl</c></url>.</p>
   </section>
 </chapter>
-
diff --git a/erts/doc/src/zlib.xml b/erts/doc/src/zlib.xml
index da8ccdecdf..1f10ddef6d 100644
--- a/erts/doc/src/zlib.xml
+++ b/erts/doc/src/zlib.xml
@@ -99,7 +99,7 @@ list_to_binary([Compressed|Last])</pre>
     <datatype>
       <name name="zwindowbits"/>
       <desc>
-        <p>Normally in the range <c>-15..-9 | 9..15</c>.</p>
+        <p>Normally in the range <c>-15..-8 | 8..15</c>.</p>
       </desc>
     </datatype>
   </datatypes>
@@ -149,7 +149,7 @@ list_to_binary([Compressed|Last])</pre>
           currently the only supported method is <c>deflated</c>.</p>
         <p>The <c><anno>WindowBits</anno></c> parameter is the base two logarithm
           of the window size (the size of the history buffer).  It
-          should be in the range 9 through 15. Larger values
+          should be in the range 8 through 15. Larger values
           of this parameter result in better compression at the
           expense of memory usage. The default value is 15 if
           <c>deflateInit/2</c>. A negative <c><anno>WindowBits</anno></c>
@@ -288,7 +288,7 @@ list_to_binary([B1,B2])</pre>
         <p>Initialize decompression session on zlib stream.</p>
         <p>The <c><anno>WindowBits</anno></c> parameter is the base two logarithm
           of the maximum window size (the size of the history buffer).
-          It should be in the range 9 through 15.
+          It should be in the range 8 through 15.
           The default value is 15 if <c>inflateInit/1</c> is used.
           If a compressed stream with a larger window size is
           given as input, inflate() will throw the <c>data_error</c>
@@ -312,6 +312,53 @@ list_to_binary([B1,B2])</pre>
       </desc>
     </func>
     <func>
+      <name name="inflateChunk" arity="2"/>
+      <fsummary>Decompress data with limited output size</fsummary>
+      <desc>
+        <p>Like <c>inflate/2</c>, but decompress no more data than
+          will fit in the buffer configured via <c>setBufSize/2</c>.
+          Is is useful when decompressing a stream with a high compression
+          ratio such that a small amount of compressed input may expand up to
+          1000 times.
+          It returns <c>{more, Decompressed}</c>, when there is more output
+          available, and <c>inflateChunk/1</c> should be used to read it.
+          It may introduce some output latency (reading
+          input without producing any output).</p>
+        <p>If a preset dictionary is needed at this point (see
+          <c>inflateSetDictionary</c> below), <c>inflateChunk/2</c> throws a
+          <c>{need_dictionary,Adler}</c> exception where <c>Adler</c> is
+          the adler32 checksum of the dictionary chosen by the
+          compressor.</p>
+
+        <pre>
+walk(Compressed, Handler) ->
+    Z = zlib:open(),
+    zlib:inflateInit(Z),
+    % Limit single uncompressed chunk size to 512kb
+    zlib:setBufSize(Z, 512 * 1024),
+    loop(Z, Handler, zlib:inflateChunk(Z, Compressed)),
+    zlib:inflateEnd(Z),
+    zlib:close(Z).
+
+loop(Z, Handler, {more, Uncompressed}) ->
+    Handler(Uncompressed),
+    loop(Z, Handler, zlib:inflateChunk(Z));
+loop(Z, Handler, Uncompressed) ->
+    Handler(Uncompressed).
+        </pre>
+      </desc>
+    </func>
+    <func>
+      <name name="inflateChunk" arity="1"/>
+      <fsummary>Read next uncompressed chunk</fsummary>
+      <desc>
+        <p>Read next chunk of uncompressed data, initialized by
+          <c>inflateChunk/2</c>.</p>
+        <p>This function should be repeatedly called, while it returns
+          <c>{more, Decompressed}</c>.</p>
+      </desc>
+    </func>
+    <func>
       <name name="inflateSetDictionary" arity="2"/>
       <fsummary>Initialize the decompression dictionary</fsummary>
       <desc>
diff --git a/erts/emulator/Makefile.in b/erts/emulator/Makefile.in
index 7145824f91..659ea1b27f 100644
--- a/erts/emulator/Makefile.in
+++ b/erts/emulator/Makefile.in
@@ -112,18 +112,24 @@ NO_INLINE_FUNCTIONS=true
 else
 
 ifeq ($(TYPE),lcnt)
-PURIFY = 
+PURIFY =
 TYPEMARKER = .lcnt
 TYPE_FLAGS = @CFLAGS@ -DERTS_ENABLE_LOCK_COUNT
 else
 
 ifeq ($(TYPE),frmptr)
-PURIFY = 
+PURIFY =
 OMIT_OMIT_FP=yes
 TYPEMARKER = .frmptr
 TYPE_FLAGS = @CFLAGS@ -DERTS_FRMPTR
 else
 
+ifeq ($(TYPE),icount)
+PURIFY =
+TYPEMARKER = .icount
+TYPE_FLAGS = @CFLAGS@ -DERTS_OPCODE_COUNTER_SUPPORT
+else
+
 # If type isn't one of the above, it *is* opt type...
 override TYPE=opt
 PURIFY =
@@ -138,6 +144,7 @@ endif
 endif
 endif
 endif
+endif
 
 comma:=,
 space:=
@@ -342,16 +349,6 @@ endif
 EPCRE_LIB = $(ERL_TOP)/erts/emulator/pcre/obj/$(TARGET)/$(TYPE)/$(LIB_PREFIX)epcre$(LIB_SUFFIX)
 DEPLIBS += $(EPCRE_LIB)
 
-PERFCTR_PATH=@PERFCTR_PATH@
-USE_PERFCTR=@USE_PERFCTR@
-ifdef PERFCTR_PATH
-LIBS += $(PERFCTR_PATH)/usr.lib/libperfctr.a
-else
-ifdef USE_PERFCTR
-LIBS += -lperfctr
-endif
-endif
-
 LIBSCTP = @LIBSCTP@
 
 ORG_THR_LIBS=@EMU_THR_LIBS@
@@ -559,9 +556,6 @@ HIPE_ppc64_TAB=hipe/hipe_ppc64.tab $(HIPE_ARCH64_TAB)
 HIPE_arm_TAB=hipe/hipe_arm.tab
 HIPE_ARCH_TAB=$(HIPE_$(ARCH)_TAB)
 BIFS += hipe/hipe_bif0.tab hipe/hipe_bif1.tab hipe/hipe_bif2.tab $(HIPE_ARCH_TAB)
-ifdef USE_PERFCTR
-BIFS += hipe/hipe_perfctr.tab
-endif
 endif
 
 $(TARGET)/erl_bif_table.c \
@@ -657,10 +651,6 @@ COMMON_INCLUDES += -I../include/internal -I../include/internal/$(TARGET)
 
 INCLUDES  =  -I$(TTF_DIR) $(COMMON_INCLUDES)
 
-ifdef PERFCTR_PATH
-INCLUDES += -I$(PERFCTR_PATH)/usr.lib -I$(PERFCTR_PATH)/linux/include
-endif
-
 ifeq ($(TARGET),win32)
 $(OBJDIR)/dll_sys.o: sys/$(ERLANG_OSTYPE)/sys.c
 	$(V_CC) $(CFLAGS) -DERL_RUN_SHARED_LIB=1 $(INCLUDES) -c $< -o $@
@@ -764,7 +754,8 @@ RUN_OBJS = \
 	$(OBJDIR)/erl_bif_ddll.o  	$(OBJDIR)/erl_bif_guard.o \
 	$(OBJDIR)/erl_bif_info.o	$(OBJDIR)/erl_bif_op.o \
 	$(OBJDIR)/erl_bif_os.o		$(OBJDIR)/erl_bif_lists.o \
-	$(OBJDIR)/erl_bif_trace.o	$(OBJDIR)/erl_bif_wrap.o \
+	$(OBJDIR)/erl_bif_trace.o	$(OBJDIR)/erl_bif_unique.o \
+	$(OBJDIR)/erl_bif_wrap.o \
 	$(OBJDIR)/erl_trace.o		$(OBJDIR)/copy.o \
 	$(OBJDIR)/utils.o		$(OBJDIR)/bif.o \
 	$(OBJDIR)/io.o 			$(OBJDIR)/erl_printf_term.o\
@@ -788,7 +779,7 @@ RUN_OBJS = \
 	$(OBJDIR)/erl_fun.o             $(OBJDIR)/erl_bif_port.o \
 	$(OBJDIR)/erl_term.o 		$(OBJDIR)/erl_node_tables.o \
 	$(OBJDIR)/erl_monitors.o	$(OBJDIR)/erl_process_dump.o \
-	$(OBJDIR)/erl_bif_timer.o	$(OBJDIR)/erl_cpu_topology.o \
+	$(OBJDIR)/erl_hl_timer.o	$(OBJDIR)/erl_cpu_topology.o \
 	$(OBJDIR)/erl_drv_thread.o      $(OBJDIR)/erl_bif_chksum.o \
 	$(OBJDIR)/erl_bif_re.o		$(OBJDIR)/erl_unicode.o \
 	$(OBJDIR)/packet_parser.o	$(OBJDIR)/safe_hash.o \
@@ -897,7 +888,8 @@ OS_OBJS +=	$(OBJDIR)/erl_mseg.o \
 		$(OBJDIR)/erl_mmap.o \
 		$(OBJDIR)/erl_$(ERLANG_OSTYPE)_sys_ddll.o \
 		$(OBJDIR)/erl_mtrace_sys_wrap.o \
-		$(OBJDIR)/erl_sys_common_misc.o
+		$(OBJDIR)/erl_sys_common_misc.o \
+		$(OBJDIR)/erl_os_monotonic_time_extender.o
 
 HIPE_ARCH64_OBJS=$(OBJDIR)/hipe_bif64.o
 
@@ -920,14 +912,11 @@ HIPE_OBJS= \
 	$(OBJDIR)/hipe_mode_switch.o \
 	$(OBJDIR)/hipe_native_bif.o \
 	$(OBJDIR)/hipe_stack.o $(HIPE_ARCH_OBJS)
-ifdef USE_PERFCTR
-HIPE_OBJS += $(OBJDIR)/hipe_perfctr.o
-endif
 ifdef HIPE_ENABLED
 EXTRA_BASE_OBJS += $(HIPE_OBJS)
 endif
 
-BASE_OBJS = $(RUN_OBJS) $(EMU_OBJS) $(OS_OBJS) $(EXTRA_BASE_OBJS)
+BASE_OBJS = $(EMU_OBJS) $(RUN_OBJS) $(OS_OBJS) $(EXTRA_BASE_OBJS)
 
 before_DTrace_OBJS =	$(BASE_OBJS) $(DRV_OBJS)
 
diff --git a/erts/emulator/beam/atom.names b/erts/emulator/beam/atom.names
index 5d06a32941..5ec1409adf 100644
--- a/erts/emulator/beam/atom.names
+++ b/erts/emulator/beam/atom.names
@@ -68,6 +68,7 @@ atom aborted
 atom abs_path
 atom absoluteURI
 atom ac
+atom accessor
 atom active
 atom all
 atom all_but_first
@@ -94,21 +95,24 @@ atom args
 atom arg0
 atom arity
 atom asn1
+atom async
 atom asynchronous
 atom atom
 atom atom_used
 atom attributes
 atom await_port_send_result
 atom await_proc_exit
+atom await_result
 atom await_sched_wall_time_modifications
 atom awaiting_load
 atom awaiting_unload
 atom backtrace backtrace_depth
-atom badarg badarith badarity badfile badmatch badsig badfun
+atom badarg badarith badarity badfile badfun badkey badmap badmatch badsig
 atom bag
 atom band
 atom big
 atom bif_return_trap
+atom bif_timer_server
 atom binary
 atom binary_bin_to_list_trap
 atom binary_copy_trap
@@ -144,9 +148,11 @@ atom catchlevel
 atom cd
 atom cdr
 atom cflags
+atom CHANGE='CHANGE'
 atom characters_to_binary_int
 atom characters_to_list_int
 atom clear
+atom clock_service
 atom close
 atom closed
 atom code
@@ -156,6 +162,7 @@ atom compat_rel
 atom compile
 atom compressed
 atom config_h
+atom convert_time_unit
 atom connect
 atom connected
 atom connection_closed
@@ -198,6 +205,7 @@ atom dotall
 atom driver
 atom driver_options
 atom dsend
+atom dsend_continue_trap
 atom dunlink
 atom duplicate_bag
 atom dupnames
@@ -236,7 +244,7 @@ atom first
 atom firstline
 atom flags
 atom flush
-atom flush_monitor_message
+atom flush_monitor_messages
 atom force
 atom format_cpu_topology
 atom free
@@ -279,7 +287,6 @@ atom http httph https http_response http_request http_header http_eoh http_error
 atom id
 atom if_clause
 atom ignore
-atom imports
 atom in
 atom in_exiting
 atom inactive
@@ -335,6 +342,7 @@ atom max
 atom maximum
 atom max_tables max_processes
 atom mbuf_size
+atom md5
 atom memory
 atom memory_internal
 atom memory_types
@@ -344,6 +352,8 @@ atom message_queue_len
 atom messages
 atom meta
 atom meta_match_spec
+atom micro_seconds
+atom milli_seconds
 atom min_heap_size
 atom min_bin_vheap_size
 atom minor_version
@@ -354,12 +364,15 @@ atom monitored_by
 atom monitor
 atom monitor_nodes
 atom monitors
+atom monotonic
 atom more
 atom multi_scheduling
 atom multiline
+atom nano_seconds
 atom name
 atom named_table
 atom namelist
+atom native
 atom native_addresses
 atom Neq='=/='
 atom Neqeq='/='
@@ -450,6 +463,7 @@ atom ports
 atom port_count
 atom port_limit
 atom port_op
+atom positive
 atom print
 atom priority
 atom private
@@ -509,6 +523,7 @@ atom schedulers_online
 atom scheme
 atom scientific
 atom scope
+atom seconds
 atom sensitive
 atom sequential_tracer
 atom sequential_trace_token
@@ -554,6 +569,7 @@ atom term_to_binary_trap
 atom this
 atom thread_pool_size
 atom threads
+atom time_offset
 atom timeout
 atom timeout_value
 atom Times='*'
diff --git a/erts/emulator/beam/beam_bif_load.c b/erts/emulator/beam/beam_bif_load.c
index df1983a83d..500a98195b 100644
--- a/erts/emulator/beam/beam_bif_load.c
+++ b/erts/emulator/beam/beam_bif_load.c
@@ -39,12 +39,9 @@ static void set_default_trace_pattern(Eterm module);
 static Eterm check_process_code(Process* rp, Module* modp, int allow_gc, int *redsp);
 static void delete_code(Module* modp);
 static void decrement_refc(BeamInstr* code);
-static int is_native(BeamInstr* code);
 static int any_heap_ref_ptrs(Eterm* start, Eterm* end, char* mod_start, Uint mod_size);
 static int any_heap_refs(Eterm* start, Eterm* end, char* mod_start, Uint mod_size);
 
-
-
 BIF_RETTYPE code_is_module_native_1(BIF_ALIST_1)
 {
     Module* modp;
@@ -59,8 +56,8 @@ BIF_RETTYPE code_is_module_native_1(BIF_ALIST_1)
 	return am_undefined;
     }
     erts_rlock_old_code(code_ix);
-    res = ((modp->curr.code && is_native(modp->curr.code)) ||
-	    (modp->old.code != 0 && is_native(modp->old.code))) ?
+    res = (erts_is_module_native(modp->curr.code) ||
+           erts_is_module_native(modp->old.code)) ?
 		am_true : am_false;
     erts_runlock_old_code(code_ix);
     return res;
@@ -371,7 +368,7 @@ staging_epilogue(Process* c_p, int commit, Eterm res, int is_blocking,
 	ASSERT(commiter_state.stager == NULL);
 	commiter_state.stager = c_p;
 	erts_schedule_thr_prgr_later_op(smp_code_ix_commiter, NULL, &commiter_state.lop);
-	erts_smp_proc_inc_refc(c_p);
+	erts_proc_inc_refc(c_p);
 	erts_suspend(c_p, ERTS_PROC_LOCK_MAIN, NULL);
 	/*
 	 * smp_code_ix_commiter() will do the rest "later"
@@ -398,7 +395,7 @@ static void smp_code_ix_commiter(void* null)
 	erts_resume(p, ERTS_PROC_LOCK_STATUS);
     }
     erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
-    erts_smp_proc_dec_refc(p);
+    erts_proc_dec_refc(p);
 }
 #endif /* ERTS_SMP */
 
@@ -1106,25 +1103,3 @@ beam_make_current_old(Process *c_p, ErtsProcLocks c_p_locks, Eterm module)
     }
     return NIL;
 }
-
-static int
-is_native(BeamInstr* code)
-{
-    Uint i, num_functions = code[MI_NUM_FUNCTIONS];
-
-    /* Check NativeAdress of first real function in module
-     */
-    for (i=0; i<num_functions; i++) {
-	BeamInstr* func_info = (BeamInstr *) code[MI_FUNCTIONS+i];
-	Eterm name = (Eterm) func_info[3];
-
-	if (is_atom(name)) {
-	    return func_info[1] != 0;    
-	}
-	else ASSERT(is_nil(name)); /* ignore BIF stubs */
-    }
-    /* Not a single non-BIF function? */
-    return 0;
-}
-
-
diff --git a/erts/emulator/beam/beam_debug.c b/erts/emulator/beam/beam_debug.c
index a3cd08834f..0367ca8aba 100644
--- a/erts/emulator/beam/beam_debug.c
+++ b/erts/emulator/beam/beam_debug.c
@@ -579,9 +579,29 @@ print_op(int to, void *to_arg, int op, int size, BeamInstr* addr)
     unpacked = ap;
     ap = addr + size;
     switch (op) {
-    case op_i_select_val_rfI:
-    case op_i_select_val_xfI:
-    case op_i_select_val_yfI:
+    case op_i_select_val_lins_rfI:
+    case op_i_select_val_lins_xfI:
+    case op_i_select_val_lins_yfI:
+	{
+	    int n = ap[-1];
+	    int ix = n;
+
+	    while (ix--) {
+		erts_print(to, to_arg, "%T ", (Eterm) ap[0]);
+		ap++;
+		size++;
+	    }
+	    ix = n;
+	    while (ix--) {
+		erts_print(to, to_arg, "f(" HEXF ") ", (Eterm) ap[0]);
+		ap++;
+		size++;
+	    }
+	}
+	break;
+    case op_i_select_val_bins_rfI:
+    case op_i_select_val_bins_xfI:
+    case op_i_select_val_bins_yfI:
 	{
 	    int n = ap[-1];
 
@@ -598,13 +618,19 @@ print_op(int to, void *to_arg, int op, int size, BeamInstr* addr)
     case op_i_select_tuple_arity_yfI:
 	{
 	    int n = ap[-1];
+	    int ix = n;
 
-	    while (n > 0) {
+	    while (ix--) {
 		Uint arity = arityval(ap[0]);
-		erts_print(to, to_arg, " {%d} f(" HEXF ")", arity, ap[1]);
-		ap += 2;
-		size += 2;
-		n--;
+		erts_print(to, to_arg, "{%d} ", arity, ap[1]);
+		ap++;
+		size++;
+	    }
+	    ix = n;
+	    while (ix--) {
+		erts_print(to, to_arg, "f(" HEXF ") ", ap[0]);
+		ap++;
+		size++;
 	    }
 	}
 	break;
@@ -635,10 +661,9 @@ print_op(int to, void *to_arg, int op, int size, BeamInstr* addr)
     case op_i_put_tuple_rI:
     case op_i_put_tuple_xI:
     case op_i_put_tuple_yI:
-    case op_new_map_jdII:
+    case op_new_map_dII:
     case op_update_map_assoc_jsdII:
     case op_update_map_exact_jsdII:
-    case op_i_has_map_fields_fsI:
     case op_i_get_map_elements_fsI:
 	{
 	    int n = unpacked[-1];
diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c
index 8bfb7d2ad2..a21622f424 100644
--- a/erts/emulator/beam/beam_emu.c
+++ b/erts/emulator/beam/beam_emu.c
@@ -241,10 +241,6 @@ BeamInstr beam_return_time_trace[1]; /* OpCode(i_return_time_trace) */
 void** beam_ops;
 #endif
 
-#ifndef ERTS_SMP /* Not supported with smp emulator */
-extern int count_instructions;
-#endif
-
 #define SWAPIN             \
     HTOP = HEAP_TOP(c_p);  \
     E = c_p->stop
@@ -566,7 +562,8 @@ extern int count_instructions;
        Store(term, Dst);           \
    } while (0)
 
-#define Move2(src1, dst1, src2, dst2) dst1 = (src1); dst2 = (src2)
+#define Move2(S1, D1, S2, D2) D1 = (S1); D2 = (S2)
+#define Move3(S1, D1, S2, D2, S3, D3) D1 = (S1); D2 = (S2); D3 = (S3)
 
 #define MoveGenDest(src, dstp) \
    if ((dstp) == NULL) { r(0) = (src); } else { *(dstp) = src; }
@@ -666,6 +663,9 @@ extern int count_instructions;
 
 #define EqualImmed(X, Y, Action) if (X != Y) { Action; }
 #define NotEqualImmed(X, Y, Action) if (X == Y) { Action; }
+#define EqualExact(X, Y, Action) if (!EQ(X,Y)) { Action; }
+#define IsLessThan(X, Y, Action) if (CMP_GE(X, Y)) { Action; }
+#define IsGreaterEqual(X, Y, Action) if (CMP_LT(X, Y)) { Action; }
 
 #define IsFloat(Src, Fail) if (is_not_float(Src)) { Fail; }
 
@@ -703,9 +703,7 @@ extern int count_instructions;
         Fail; 								  \
     }
 
-#define IsMap(Src, Fail) if (is_not_map(Src)) { Fail; }
-
-#define HasMapField(Src, Key, Fail) if (has_not_map_field(Src, Key)) { Fail; }
+#define IsMap(Src, Fail) if (!is_map(Src)) { Fail; }
 
 #define GetMapElement(Src, Key, Dst, Fail)	\
   do {						\
@@ -716,6 +714,15 @@ extern int count_instructions;
      Dst = _res;				\
   } while (0)
 
+#define GetMapElementHash(Src, Key, Hx, Dst, Fail)	\
+  do {							\
+     Eterm _res = get_map_element_hash(Src, Key, Hx);	\
+     if (is_non_value(_res)) {				\
+        Fail;						\
+     }							\
+     Dst = _res;					\
+  } while (0)
+
 #define IsFunction(X, Action)			\
   do {						\
      if ( !(is_any_fun(X)) ) {			\
@@ -964,8 +971,8 @@ static Eterm update_map_assoc(Process* p, Eterm* reg,
 			      Eterm map, BeamInstr* I) NOINLINE;
 static Eterm update_map_exact(Process* p, Eterm* reg,
 			      Eterm map, BeamInstr* I) NOINLINE;
-static int has_not_map_field(Eterm map, Eterm key);
 static Eterm get_map_element(Eterm map, Eterm key);
+static Eterm get_map_element_hash(Eterm map, Eterm key, Uint32 hx);
 
 /*
  * Functions not directly called by process_main(). OK to inline.
@@ -1081,16 +1088,32 @@ init_emulator(void)
         DTRACE2(nif_return, process_name, mfa);                 \
     }
 
-#else /* USE_VM_PROBES */
-
-#define DTRACE_LOCAL_CALL(p, m, f, a)  do {} while (0)
-#define DTRACE_GLOBAL_CALL(p, m, f, a) do {} while (0)
-#define DTRACE_RETURN(p, m, f, a)      do {} while (0)
-#define DTRACE_BIF_ENTRY(p, m, f, a)   do {} while (0)
-#define DTRACE_BIF_RETURN(p, m, f, a)  do {} while (0)
-#define DTRACE_NIF_ENTRY(p, m, f, a)   do {} while (0)
-#define DTRACE_NIF_RETURN(p, m, f, a)  do {} while (0)
+#define DTRACE_GLOBAL_CALL_FROM_EXPORT(p,e)                                                    \
+    do {                                                                                       \
+        if (DTRACE_ENABLED(global_function_entry)) {                                           \
+            BeamInstr* fp = (BeamInstr *) (((Export *) (e))->addressv[erts_active_code_ix()]); \
+            DTRACE_GLOBAL_CALL((p), (Eterm)fp[-3], (Eterm)fp[-2], fp[-1]);                     \
+        }                                                                                      \
+    } while(0)
+
+#define DTRACE_RETURN_FROM_PC(p)                                                        \
+    do {                                                                                \
+        BeamInstr* fp;                                                                  \
+        if (DTRACE_ENABLED(function_return) && (fp = find_function_from_pc((p)->cp))) { \
+            DTRACE_RETURN((p), (Eterm)fp[0], (Eterm)fp[1], (Uint)fp[2]);                \
+        }                                                                               \
+    } while(0)
 
+#else /* USE_VM_PROBES */
+#define DTRACE_LOCAL_CALL(p, m, f, a)        do {} while (0)
+#define DTRACE_GLOBAL_CALL(p, m, f, a)       do {} while (0)
+#define DTRACE_GLOBAL_CALL_FROM_EXPORT(p, e) do {} while (0)
+#define DTRACE_RETURN(p, m, f, a)            do {} while (0)
+#define DTRACE_RETURN_FROM_PC(p)             do {} while (0)
+#define DTRACE_BIF_ENTRY(p, m, f, a)         do {} while (0)
+#define DTRACE_BIF_RETURN(p, m, f, a)        do {} while (0)
+#define DTRACE_NIF_ENTRY(p, m, f, a)         do {} while (0)
+#define DTRACE_NIF_RETURN(p, m, f, a)        do {} while (0)
 #endif /* USE_VM_PROBES */
 
 /*
@@ -1163,14 +1186,15 @@ void process_main(void)
 
     Eterm (*arith_func)(Process* p, Eterm* reg, Uint live);
 
-#ifndef NO_JUMP_TABLE
-    static void* opcodes[] = { DEFINE_OPCODES };
 #ifdef ERTS_OPCODE_COUNTER_SUPPORT
     static void* counting_opcodes[] = { DEFINE_COUNTING_OPCODES };
-#endif
+#else
+#ifndef NO_JUMP_TABLE
+    static void* opcodes[] = { DEFINE_OPCODES };
 #else
     int Go;
 #endif
+#endif
 
     Uint temp_bits; /* Temporary used by BsSkipBits2 & BsGetInteger2 */
 
@@ -1369,7 +1393,39 @@ void process_main(void)
 	    ASSERT(c_p->freason != BADMATCH || is_value(c_p->fvalue));
 	    goto find_func_info;
 	}
-	    
+
+#define DO_BIG_ARITH(Func,Arg1,Arg2)     \
+    do {                                 \
+        Uint live = Arg(1);              \
+        SWAPOUT;                         \
+        reg[0] = r(0);                   \
+        reg[live] = (Arg1);              \
+        reg[live+1] = (Arg2);            \
+        result = (Func)(c_p, reg, live); \
+        r(0) = reg[0];                   \
+        SWAPIN;                          \
+        ERTS_HOLE_CHECK(c_p);            \
+        if (is_value(result)) {          \
+            StoreBifResult(4,result);    \
+        }                                \
+        goto lb_Cl_error;                \
+    } while(0)
+
+ OpCase(i_plus_jIxxd):
+ {
+     Eterm result;
+
+     if (is_both_small(xb(Arg(2)), xb(Arg(3)))) {
+	 Sint i = signed_val(xb(Arg(2))) + signed_val(xb(Arg(3)));
+	 ASSERT(MY_IS_SSMALL(i) == IS_SSMALL(i));
+	 if (MY_IS_SSMALL(i)) {
+	     result = make_small(i);
+             StoreBifResult(4, result);
+	 }
+     }
+     DO_BIG_ARITH(ARITH_FUNC(mixed_plus), xb(Arg(2)), xb(Arg(3)));
+ }
+
  OpCase(i_plus_jId):
  {
      Eterm result;
@@ -1381,12 +1437,26 @@ void process_main(void)
 	     result = make_small(i);
 	     STORE_ARITH_RESULT(result);
 	 }
-     
      }
      arith_func = ARITH_FUNC(mixed_plus);
      goto do_big_arith2;
  }
 
+ OpCase(i_minus_jIxxd):
+ {
+     Eterm result;
+
+     if (is_both_small(xb(Arg(2)), xb(Arg(3)))) {
+	 Sint i = signed_val(xb(Arg(2))) - signed_val(xb(Arg(3)));
+	 ASSERT(MY_IS_SSMALL(i) == IS_SSMALL(i));
+	 if (MY_IS_SSMALL(i)) {
+	     result = make_small(i);
+             StoreBifResult(4, result);
+	 }
+     }
+     DO_BIG_ARITH(ARITH_FUNC(mixed_minus), xb(Arg(2)), xb(Arg(3)));
+ }
+
  OpCase(i_minus_jId):
  {
      Eterm result;
@@ -1479,6 +1549,52 @@ void process_main(void)
 	Next(2);
     }
 
+ OpCase(move_window3_xxxy): {
+     BeamInstr *next;
+     Eterm xt0, xt1, xt2;
+     Eterm *y = (Eterm *)(((unsigned char *)E) + (Arg(3)));
+     PreFetch(4, next);
+     xt0  = xb(Arg(0));
+     xt1  = xb(Arg(1));
+     xt2  = xb(Arg(2));
+     y[0] = xt0;
+     y[1] = xt1;
+     y[2] = xt2;
+     NextPF(4, next);
+ }
+ OpCase(move_window4_xxxxy): {
+     BeamInstr *next;
+     Eterm xt0, xt1, xt2, xt3;
+     Eterm *y = (Eterm *)(((unsigned char *)E) + (Arg(4)));
+     PreFetch(5, next);
+     xt0  = xb(Arg(0));
+     xt1  = xb(Arg(1));
+     xt2  = xb(Arg(2));
+     xt3  = xb(Arg(3));
+     y[0] = xt0;
+     y[1] = xt1;
+     y[2] = xt2;
+     y[3] = xt3;
+     NextPF(5, next);
+ }
+ OpCase(move_window5_xxxxxy): {
+     BeamInstr *next;
+     Eterm xt0, xt1, xt2, xt3, xt4;
+     Eterm *y = (Eterm *)(((unsigned char *)E) + (Arg(5)));
+     PreFetch(6, next);
+     xt0  = xb(Arg(0));
+     xt1  = xb(Arg(1));
+     xt2  = xb(Arg(2));
+     xt3  = xb(Arg(3));
+     xt4  = xb(Arg(4));
+     y[0] = xt0;
+     y[1] = xt1;
+     y[2] = xt2;
+     y[3] = xt3;
+     y[4] = xt4;
+     NextPF(6, next);
+ }
+
  OpCase(i_move_call_only_fcr): {
      r(0) = Arg(1);
  }
@@ -1526,12 +1642,7 @@ void process_main(void)
      * is not loaded, it points to code which will invoke the error handler
      * (see lb_call_error_handler below).
      */
-#ifdef USE_VM_CALL_PROBES
-    if (DTRACE_ENABLED(global_function_entry)) {
-	BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->addressv[erts_active_code_ix()]);
-	DTRACE_GLOBAL_CALL(c_p, (Eterm)fp[-3], (Eterm)fp[-2], fp[-1]);
-    }
-#endif
+    DTRACE_GLOBAL_CALL_FROM_EXPORT(c_p, Arg(0));
     Dispatchx();
 
  OpCase(i_move_call_ext_cre): {
@@ -1541,12 +1652,7 @@ void process_main(void)
  /* FALL THROUGH */
  OpCase(i_call_ext_e):
     SET_CP(c_p, I+2);
-#ifdef USE_VM_CALL_PROBES
-    if (DTRACE_ENABLED(global_function_entry)) {
-	BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->addressv[erts_active_code_ix()]);
-	DTRACE_GLOBAL_CALL(c_p, (Eterm)fp[-3], (Eterm)fp[-2], fp[-1]);
-    }
-#endif
+    DTRACE_GLOBAL_CALL_FROM_EXPORT(c_p, Arg(0));
     Dispatchx();
 
  OpCase(i_move_call_ext_only_ecr): {
@@ -1554,12 +1660,7 @@ void process_main(void)
  }
  /* FALL THROUGH */
  OpCase(i_call_ext_only_e):
-#ifdef USE_VM_CALL_PROBES
-    if (DTRACE_ENABLED(global_function_entry)) {
-	BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->addressv[erts_active_code_ix()]);
-	DTRACE_GLOBAL_CALL(c_p, (Eterm)fp[-3], (Eterm)fp[-2], fp[-1]);
-    }
-#endif
+    DTRACE_GLOBAL_CALL_FROM_EXPORT(c_p, Arg(0));
     Dispatchx();
 
  OpCase(init_y): {
@@ -1593,18 +1694,9 @@ void process_main(void)
 	Next(1);
     }
 
-
  OpCase(return): {
-#ifdef USE_VM_CALL_PROBES
-    BeamInstr* fptr;
-#endif
     SET_I(c_p->cp);
-
-#ifdef USE_VM_CALL_PROBES
-    if (DTRACE_ENABLED(function_return) && (fptr = find_function_from_pc(c_p->cp))) {
-        DTRACE_RETURN(c_p, (Eterm)fptr[0], (Eterm)fptr[1], (Uint)fptr[2]);
-    }
-#endif
+    DTRACE_RETURN_FROM_PC(c_p);
     /*
      * We must clear the CP to make sure that a stale value do not
      * create a false module dependcy preventing code upgrading.
@@ -2027,44 +2119,32 @@ void process_main(void)
      }
      GetArg1(1, timeout_value);
      if (timeout_value != make_small(0)) {
-#if !defined(ARCH_64) || HALFWORD_HEAP
-	 Uint time_val;
-#endif
 
-	 if (is_small(timeout_value) && signed_val(timeout_value) > 0 &&
-#if defined(ARCH_64) && !HALFWORD_HEAP
-	     ((unsigned_val(timeout_value) >> 32) == 0)
-#else
-	     1
-#endif
-	     ) {
-	     /*
-	      * The timer routiner will set c_p->i to the value in
-	      * c_p->def_arg_reg[0].  Note that it is safe to use this
-	      * location because there are no living x registers in
-	      * a receive statement.
-	      * Note that for the halfword emulator, the two first elements
-	      * of the array are used.
-	      */
-	     BeamInstr** pi = (BeamInstr**) c_p->def_arg_reg;
-	     *pi = I+3;
-	     set_timer(c_p, unsigned_val(timeout_value));
-	 } else if (timeout_value == am_infinity) {
+	 if (timeout_value == am_infinity)
 	     c_p->flags |= F_TIMO;
-#if !defined(ARCH_64) || HALFWORD_HEAP
-	 } else if (term_to_Uint(timeout_value, &time_val)) {
-	     BeamInstr** pi = (BeamInstr**) c_p->def_arg_reg;
-	     *pi = I+3;
-	     set_timer(c_p, time_val);
-#endif
-	 } else {		/* Wrong time */
-	     OpCase(i_wait_error_locked): {
-		 erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_MSG_RECEIVE);
-		 /* Fall through */
+	 else {
+	     int tres = erts_set_proc_timer_term(c_p, timeout_value);
+	     if (tres == 0) {
+		 /*
+		  * The timer routiner will set c_p->i to the value in
+		  * c_p->def_arg_reg[0].  Note that it is safe to use this
+		  * location because there are no living x registers in
+		  * a receive statement.
+		  * Note that for the halfword emulator, the two first elements
+		  * of the array are used.
+		  */
+		 BeamInstr** pi = (BeamInstr**) c_p->def_arg_reg;
+		 *pi = I+3;
 	     }
+	     else { /* Wrong time */
+	     OpCase(i_wait_error_locked): {
+		     erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_MSG_RECEIVE);
+		     /* Fall through */
+		 }
 	     OpCase(i_wait_error): {
-		 c_p->freason = EXC_TIMEOUT_VALUE;
-		 goto find_func_info;
+		     c_p->freason = EXC_TIMEOUT_VALUE;
+		     goto find_func_info;
+		 }
 	     }
 	 }
 
@@ -2113,7 +2193,7 @@ void process_main(void)
      if ((c_p->flags & (F_INSLPQUEUE | F_TIMO)) == 0) {
 	 BeamInstr** p = (BeamInstr **) c_p->def_arg_reg;
 	 *p = I+3;
-	 set_timer(c_p, Arg(1));
+	 erts_set_proc_timer_uword(c_p, Arg(1));
      }
      goto wait2;
  }
@@ -2141,19 +2221,18 @@ void process_main(void)
      NextPF(0, next);
  }
 
-
  {
      Eterm select_val2;
 
- OpCase(i_select_tuple_arity2_yfAfAf):
+ OpCase(i_select_tuple_arity2_yfAAff):
      select_val2 = yb(Arg(0));
      goto do_select_tuple_arity2;
 
- OpCase(i_select_tuple_arity2_xfAfAf):
+ OpCase(i_select_tuple_arity2_xfAAff):
      select_val2 = xb(Arg(0));
      goto do_select_tuple_arity2;
 
- OpCase(i_select_tuple_arity2_rfAfAf):
+ OpCase(i_select_tuple_arity2_rfAAff):
      select_val2 = r(0);
      I--;
 
@@ -2164,22 +2243,22 @@ void process_main(void)
      select_val2 = *tuple_val(select_val2);
      goto do_select_val2;
 
- OpCase(i_select_val2_yfcfcf):
+ OpCase(i_select_val2_yfccff):
      select_val2 = yb(Arg(0));
      goto do_select_val2;
 
- OpCase(i_select_val2_xfcfcf):
+ OpCase(i_select_val2_xfccff):
      select_val2 = xb(Arg(0));
      goto do_select_val2;
 
- OpCase(i_select_val2_rfcfcf):
+ OpCase(i_select_val2_rfccff):
      select_val2 = r(0);
      I--;
 
  do_select_val2:
      if (select_val2 == Arg(2)) {
-	 I += 2;
-     } else if (select_val2 == Arg(4)) {
+	 I += 3;
+     } else if (select_val2 == Arg(3)) {
 	 I += 4;
      }
 
@@ -2206,20 +2285,50 @@ void process_main(void)
  do_select_tuple_arity:
      if (is_tuple(select_val)) {
 	 select_val = *tuple_val(select_val);
-	 goto do_binary_search;
+	 goto do_linear_search;
+     }
+     SET_I((BeamInstr *) Arg(1));
+     Goto(*I);
+
+ OpCase(i_select_val_lins_xfI):
+     select_val = xb(Arg(0));
+     goto do_linear_search;
+
+ OpCase(i_select_val_lins_yfI):
+     select_val = yb(Arg(0));
+     goto do_linear_search;
+
+ OpCase(i_select_val_lins_rfI):
+     select_val = r(0);
+     I--;
+
+ do_linear_search: {
+     BeamInstr *vs = &Arg(3);
+     int ix = 0;
+
+     for(;;) {
+	 if (vs[ix+0] >= select_val) { ix += 0; break; }
+	 if (vs[ix+1] >= select_val) { ix += 1; break; }
+	 ix += 2;
+     }
+
+     if (vs[ix] == select_val) {
+	 I += ix + Arg(2) + 2;
      }
+
      SET_I((BeamInstr *) Arg(1));
      Goto(*I);
+   }
 
- OpCase(i_select_val_xfI):
+ OpCase(i_select_val_bins_xfI):
      select_val = xb(Arg(0));
      goto do_binary_search;
 
- OpCase(i_select_val_yfI):
+ OpCase(i_select_val_bins_yfI):
      select_val = yb(Arg(0));
      goto do_binary_search;
      
- OpCase(i_select_val_rfI):
+ OpCase(i_select_val_bins_rfI):
      select_val = r(0);
      I--;
 
@@ -2353,65 +2462,16 @@ void process_main(void)
      Goto(*I);
  }
 
- OpCase(new_map_jdII): {
+ OpCase(new_map_dII): {
      Eterm res;
 
      x(0) = r(0);
      SWAPOUT;
-     res = new_map(c_p, reg, I);
+     res = new_map(c_p, reg, I-1);
      SWAPIN;
      r(0) = x(0);
-     StoreResult(res, Arg(1));
-     Next(4+Arg(3));
- }
-
- OpCase(i_has_map_fields_fsI): {
-    map_t* mp;
-    Eterm map;
-    Eterm field;
-    Eterm *ks;
-    BeamInstr* fs;
-    Uint sz,n;
-
-    GetArg1(1, map);
-
-    /* this instruction assumes Arg1 is a map,
-     * i.e. that it follows a test is_map if needed.
-     */
-
-    mp = (map_t *)map_val(map);
-    sz = map_get_size(mp);
-
-    if (sz == 0) {
-	SET_I((BeamInstr *) Arg(0));
-	goto has_map_fields_fail;
-    }
-
-    ks = map_get_keys(mp);
-    n  = (Uint)Arg(2);
-    fs = &Arg(3); /* pattern fields */
-
-    ASSERT(n>0);
-
-    while(sz) {
-	field = (Eterm)*fs;
-	if (EQ(field,*ks)) {
-	    n--;
-	    fs++;
-	    if (n == 0) break;
-	}
-	ks++; sz--;
-    }
-
-    if (n) {
-	SET_I((BeamInstr *) Arg(0));
-	goto has_map_fields_fail;
-    }
-
-    I += 4 + Arg(2);
-has_map_fields_fail:
-    ASSERT(VALID_INSTR(*I));
-    Goto(*I);
+     StoreResult(res, Arg(0));
+     Next(3+Arg(2));
  }
 
 #define PUT_TERM_REG(term, desc)				\
@@ -2434,12 +2494,8 @@ do {								\
 
  OpCase(i_get_map_elements_fsI): {
     Eterm map;
-    map_t *mp;
-    Eterm field;
-    Eterm *ks;
-    Eterm *vs;
     BeamInstr *fs;
-    Uint sz,n;
+    Uint sz, n;
 
     GetArg1(1, map);
 
@@ -2447,41 +2503,55 @@ do {								\
      * i.e. that it follows a test is_map if needed.
      */
 
-    mp = (map_t *)map_val(map);
-    sz = map_get_size(mp);
+    n  = (Uint)Arg(2) / 3;
+    fs = &Arg(3); /* pattern fields and target registers */
 
-    if (sz == 0) {
-	SET_I((BeamInstr *) Arg(0));
-	goto get_map_elements_fail;
-    }
+    if (is_flatmap(map)) {
+	flatmap_t *mp;
+	Eterm *ks;
+	Eterm *vs;
 
-    n  = (Uint)Arg(2) / 2;
-    fs = &Arg(3); /* pattern fields and target registers */
-    ks = map_get_keys(mp);
-    vs = map_get_values(mp);
+	mp = (flatmap_t *)flatmap_val(map);
+	sz = flatmap_get_size(mp);
 
-    while(sz) {
-	field = (Eterm)*fs;
-	if (EQ(field,*ks)) {
-	    PUT_TERM_REG(*vs, fs[1]);
-	    n--;
-	    fs += 2;
-	    /* no more values to fetch, we are done */
-	    if (n == 0) break;
+	if (sz == 0) {
+	    ClauseFail();
 	}
-	ks++; sz--;
-	vs++;
-    }
 
-    if (n) {
-	SET_I((BeamInstr *) Arg(0));
-	goto get_map_elements_fail;
-    }
+	ks = flatmap_get_keys(mp);
+	vs = flatmap_get_values(mp);
+
+	while(sz) {
+	    if (EQ((Eterm) fs[0], *ks)) {
+		PUT_TERM_REG(*vs, fs[1]);
+		n--;
+		fs += 3;
+		/* no more values to fetch, we are done */
+		if (n == 0) {
+		    I = fs;
+		    Next(-1);
+		}
+	    }
+	    ks++, sz--, vs++;
+	}
 
-    I += 4 + Arg(2);
-get_map_elements_fail:
-    ASSERT(VALID_INSTR(*I));
-    Goto(*I);
+	ClauseFail();
+    } else {
+	const Eterm *v;
+	Uint32 hx;
+	ASSERT(is_hashmap(map));
+	while(n--) {
+	    hx = fs[2];
+	    ASSERT(hx == hashmap_make_hash((Eterm)fs[0]));
+	    if ((v = erts_hashmap_get(hx, (Eterm)fs[0], map)) == NULL) {
+		ClauseFail();
+	    }
+	    PUT_TERM_REG(*v, fs[1]);
+	    fs += 3;
+	}
+	I = fs;
+	Next(-1);
+    }
  }
 #undef PUT_TERM_REG
 
@@ -2499,7 +2569,13 @@ get_map_elements_fail:
 	 StoreResult(res, Arg(2));
 	 Next(5+Arg(4));
      } else {
-	 goto badarg;
+	 /*
+	  * This can only happen if the code was compiled
+	  * with the compiler in OTP 17.
+	  */
+	 c_p->freason = BADMAP;
+	 c_p->fvalue = map;
+	 goto lb_Cl_error;
      }
  }
 
@@ -2517,7 +2593,7 @@ get_map_elements_fail:
 	 StoreResult(res, Arg(2));
 	 Next(5+Arg(4));
      } else {
-	 goto badarg;
+	 goto lb_Cl_error;
      }
  }
 
@@ -2775,6 +2851,7 @@ get_map_elements_fail:
 	}
 	PreFetch(1, next);
 	ASSERT(!ERTS_PROC_IS_EXITING(c_p));
+	ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
 	reg[0] = r(0);
 	result = (*bf)(c_p, reg, I);
 	ASSERT(!ERTS_PROC_IS_EXITING(c_p) || is_non_value(result));
@@ -2842,6 +2919,19 @@ get_map_elements_fail:
      goto do_big_arith2;
  }
 
+ OpCase(i_rem_jIxxd):
+ {
+     Eterm result;
+
+     if (xb(Arg(3)) == SMALL_ZERO) {
+	 goto badarith;
+     } else if (is_both_small(xb(Arg(2)), xb(Arg(3)))) {
+	 result = make_small(signed_val(xb(Arg(2))) % signed_val(xb(Arg(3))));
+         StoreBifResult(4, result);
+     }
+     DO_BIG_ARITH(ARITH_FUNC(int_rem),xb(Arg(2)),xb(Arg(3)));
+ }
+
  OpCase(i_rem_jId):
  {
      Eterm result;
@@ -2857,6 +2947,20 @@ get_map_elements_fail:
      }
  }
 
+ OpCase(i_band_jIxcd):
+ {
+     Eterm result;
+
+     if (is_both_small(xb(Arg(2)), Arg(3))) {
+         /*
+          * No need to untag -- TAG & TAG == TAG.
+          */
+         result = xb(Arg(2)) & Arg(3);
+         StoreBifResult(4, result);
+     }
+     DO_BIG_ARITH(ARITH_FUNC(band),xb(Arg(2)),Arg(3));
+ }
+
  OpCase(i_band_jId):
  {
      Eterm result;
@@ -2872,6 +2976,8 @@ get_map_elements_fail:
      goto do_big_arith2;
  }
 
+#undef DO_BIG_ARITH
+
  do_big_arith2:
  {
      Eterm result;
@@ -3523,6 +3629,8 @@ get_map_elements_fail:
 		erts_pre_nif(&env, c_p, (struct erl_module_nif*)I[2]);
 		reg[0] = r(0);
 		nif_bif_result = (*fp)(&env, bif_nif_arity, reg);
+		if (env.exception_thrown)
+		    nif_bif_result = THE_NON_VALUE;
 		erts_post_nif(&env);
 	    }
 	    ASSERT(!ERTS_PROC_IS_EXITING(c_p) || is_non_value(nif_bif_result));
@@ -3556,7 +3664,7 @@ get_map_elements_fail:
 	    vbf = (BifFunction) Arg(0);
 	    PROCESS_MAIN_CHK_LOCKS(c_p);
 	    bif_nif_arity = I[-1];
-	    ASSERT(bif_nif_arity <= 3);
+            ASSERT(bif_nif_arity <= 4);
 	    ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p);
 	    reg[0] = r(0);
 	    {
@@ -3782,8 +3890,6 @@ get_map_elements_fail:
 	  * Allocate the binary struct itself.
 	  */
 	 bptr = erts_bin_nrml_alloc(num_bytes);
-	 bptr->flags = 0;
-	 bptr->orig_size = num_bytes;
 	 erts_refc_init(&bptr->refc, 1);
 	 erts_current_bin = (byte *) bptr->orig_bytes;
 
@@ -3883,8 +3989,6 @@ get_map_elements_fail:
 	  * Allocate the binary struct itself.
 	  */
 	 bptr = erts_bin_nrml_alloc(tmp_arg1);
-	 bptr->flags = 0;
-	 bptr->orig_size = tmp_arg1;
 	 erts_refc_init(&bptr->refc, 1);
 	 erts_current_bin = (byte *) bptr->orig_bytes;
 
@@ -4987,14 +5091,14 @@ get_map_elements_fail:
 	  * ... remainder of original BEAM code
 	  */
 	 ASSERT(I[-5] == (Uint) OpCode(i_func_info_IaaI));
-	 c_p->hipe.ncallee = (void(*)(void)) I[-4];
+	 c_p->hipe.u.ncallee = (void(*)(void)) I[-4];
 	 cmd = HIPE_MODE_SWITCH_CMD_CALL | (I[-1] << 8);
 	 ++hipe_trap_count;
 	 goto L_hipe_mode_switch;
      }
      OpCase(hipe_trap_call_closure): {
        ASSERT(I[-5] == (Uint) OpCode(i_func_info_IaaI));
-       c_p->hipe.ncallee = (void(*)(void)) I[-4];
+       c_p->hipe.u.ncallee = (void(*)(void)) I[-4];
        cmd = HIPE_MODE_SWITCH_CMD_CALL_CLOSURE | (I[-1] << 8);
        ++hipe_trap_count;
        goto L_hipe_mode_switch;
@@ -5028,7 +5132,10 @@ get_map_elements_fail:
        case HIPE_MODE_SWITCH_RES_RETURN:
 	 ASSERT(is_value(reg[0]));
 	 MoveReturn(reg[0], r(0));
-       case HIPE_MODE_SWITCH_RES_CALL:
+       case HIPE_MODE_SWITCH_RES_CALL_EXPORTED:
+	 c_p->i = c_p->hipe.u.callee_exp->addressv[erts_active_code_ix()];
+	 /*fall through*/
+       case HIPE_MODE_SWITCH_RES_CALL_BEAM:
 	 SET_I(c_p->i);
 	 r(0) = reg[0];
 	 Dispatch();
@@ -5145,22 +5252,14 @@ get_map_elements_fail:
 
 #ifndef NO_JUMP_TABLE
 #ifdef ERTS_OPCODE_COUNTER_SUPPORT
-
-     /* Are tables correctly generated by beam_makeops? */
-     ASSERT(sizeof(counting_opcodes) == sizeof(opcodes));
-
-     if (count_instructions) {
 #ifdef DEBUG
-	 counting_opcodes[op_catch_end_y] = LabelAddr(lb_catch_end_y);
+     counting_opcodes[op_catch_end_y] = LabelAddr(lb_catch_end_y);
 #endif
-	 counting_opcodes[op_i_func_info_IaaI] = LabelAddr(lb_i_func_info_IaaI);
-	 beam_ops = counting_opcodes;
-     }
-     else
-#endif /* #ifndef ERTS_OPCODE_COUNTER_SUPPORT */
-     {
-	 beam_ops = opcodes;
-     }
+     counting_opcodes[op_i_func_info_IaaI] = LabelAddr(lb_i_func_info_IaaI);
+     beam_ops = counting_opcodes;
+#else /* #ifndef ERTS_OPCODE_COUNTER_SUPPORT */
+     beam_ops = opcodes;
+#endif /* ERTS_OPCODE_COUNTER_SUPPORT */
 #endif /* NO_JUMP_TABLE */
      
      em_call_error_handler = OpCode(call_error_handler);
@@ -5273,7 +5372,9 @@ Eterm error_atom[NUMBER_EXIT_CODES] = {
   am_notalive,		/* 14 */
   am_system_limit,	/* 15 */
   am_try_clause,	/* 16 */
-  am_notsup		/* 17 */
+  am_notsup,		/* 17 */
+  am_badmap,		/* 18 */
+  am_badkey,		/* 19 */
 };
 
 /*
@@ -5476,18 +5577,35 @@ next_catch(Process* c_p, Eterm *reg) {
 static void
 terminate_proc(Process* c_p, Eterm Value)
 {
+    Eterm *hp;
+    Eterm Args = NIL;
+
     /* Add a stacktrace if this is an error. */
     if (GET_EXC_CLASS(c_p->freason) == EXTAG_ERROR) {
         Value = add_stacktrace(c_p, Value, c_p->ftrace);
     }
     /* EXF_LOG is a primary exception flag */
     if (c_p->freason & EXF_LOG) {
+	int alive = erts_is_alive;
 	erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
-	erts_dsprintf(dsbufp, "Error in process %T ", c_p->common.id);
-	if (erts_is_alive)
-	    erts_dsprintf(dsbufp, "on node %T ", erts_this_node->sysname);
-	erts_dsprintf(dsbufp,"with exit value: %0.*T\n", display_items, Value);
-	erts_send_error_to_logger(c_p->group_leader, dsbufp);
+
+        /* Build the format message */
+	erts_dsprintf(dsbufp, "Error in process ~p ");
+	if (alive)
+	    erts_dsprintf(dsbufp, "on node ~p ");
+	erts_dsprintf(dsbufp, "with exit value:~n~p~n");
+
+        /* Build the args in reverse order */
+	hp = HAlloc(c_p, 2);
+	Args = CONS(hp, Value, Args);
+	if (alive) {
+	    hp = HAlloc(c_p, 2);
+	    Args = CONS(hp, erts_this_node->sysname, Args);
+	}
+	hp = HAlloc(c_p, 2);
+	Args = CONS(hp, c_p->common.id, Args);
+
+	erts_send_error_term_to_logger(c_p->group_leader, dsbufp, Args);
     }
     /*
      * If we use a shared heap, the process will be garbage-collected.
@@ -5529,6 +5647,8 @@ expand_error_value(Process* c_p, Uint freason, Eterm Value) {
     case (GET_EXC_INDEX(EXC_TRY_CLAUSE)):
     case (GET_EXC_INDEX(EXC_BADFUN)):
     case (GET_EXC_INDEX(EXC_BADARITY)):
+    case (GET_EXC_INDEX(EXC_BADMAP)):
+    case (GET_EXC_INDEX(EXC_BADKEY)):
         /* Some common exceptions: value -> {atom, value} */
         ASSERT(is_value(Value));
 	hp = HAlloc(c_p, 3);
@@ -5831,7 +5951,7 @@ build_stacktrace(Process* c_p, Eterm exc) {
      * (e.g. spawn_link(erlang, abs, [1])).
      */
     if (fi.current == NULL) {
-	erts_set_current_function(&fi, c_p->initial);
+	erts_set_current_function(&fi, c_p->u.initial);
 	args = am_true; /* Just in case */
     } else {
 	args = get_args_from_exc(exc);
@@ -6039,13 +6159,7 @@ apply(Process* p, Eterm module, Eterm function, Eterm args, Eterm* reg)
     } else if (ERTS_PROC_GET_SAVED_CALLS_BUF(p)) {
 	save_calls(p, ep);
     }
-
-#ifdef USE_VM_CALL_PROBES
-    if (DTRACE_ENABLED(global_function_entry)) {
-        BeamInstr *fptr = (BeamInstr *) ep->addressv[erts_active_code_ix()];
-	DTRACE_GLOBAL_CALL(p, (Eterm)fptr[-3], (Eterm)fptr[-2], (Uint)fptr[-1]);
-    }
-#endif
+    DTRACE_GLOBAL_CALL_FROM_EXPORT(p, ep);
     return ep->addressv[erts_active_code_ix()];
 }
 
@@ -6094,13 +6208,7 @@ fixed_apply(Process* p, Eterm* reg, Uint arity)
     } else if (ERTS_PROC_GET_SAVED_CALLS_BUF(p)) {
 	save_calls(p, ep);
     }
-
-#ifdef USE_VM_CALL_PROBES
-    if (DTRACE_ENABLED(global_function_entry)) {
-        BeamInstr *fptr = (BeamInstr *)  ep->addressv[erts_active_code_ix()];
-	DTRACE_GLOBAL_CALL(p, (Eterm)fptr[-3], (Eterm)fptr[-2], (Uint)fptr[-1]);
-    }
-#endif
+    DTRACE_GLOBAL_CALL_FROM_EXPORT(p, ep);
     return ep->addressv[erts_active_code_ix()];
 }
 
@@ -6422,57 +6530,75 @@ new_fun(Process* p, Eterm* reg, ErlFunEntry* fe, int num_free)
     return make_fun(funp);
 }
 
-static int has_not_map_field(Eterm map, Eterm key)
+static Eterm get_map_element(Eterm map, Eterm key)
 {
-    map_t* mp;
-    Eterm* keys;
-    Uint i;
-    Uint n;
-
-    mp   = (map_t *)map_val(map);
-    keys = map_get_keys(mp);
-    n    = map_get_size(mp);
-    if (is_immed(key)) {
-	for (i = 0; i < n; i++) {
-	    if (keys[i] == key) {
-		return 0;
+    Uint32 hx;
+    const Eterm *vs;
+    if (is_flatmap(map)) {
+	flatmap_t *mp;
+	Eterm *ks;
+	Uint i;
+	Uint n;
+
+	mp = (flatmap_t *)flatmap_val(map);
+	ks = flatmap_get_keys(mp);
+	vs = flatmap_get_values(mp);
+	n  = flatmap_get_size(mp);
+	if (is_immed(key)) {
+	    for (i = 0; i < n; i++) {
+		if (ks[i] == key) {
+		    return vs[i];
+		}
 	    }
-	}
-    } else {
-	for (i = 0; i <  n; i++) {
-	    if (EQ(keys[i], key)) {
-		return 0;
+	} else {
+	    for (i = 0; i < n; i++) {
+		if (EQ(ks[i], key)) {
+		    return vs[i];
+		}
 	    }
 	}
+	return THE_NON_VALUE;
     }
-    return 1;
+    ASSERT(is_hashmap(map));
+    hx = hashmap_make_hash(key);
+    vs = erts_hashmap_get(hx,key,map);
+    return vs ? *vs : THE_NON_VALUE;
 }
 
-static Eterm get_map_element(Eterm map, Eterm key)
+static Eterm get_map_element_hash(Eterm map, Eterm key, Uint32 hx)
 {
-    map_t *mp;
-    Eterm* ks, *vs;
-    Uint i;
-    Uint n;
-
-    mp = (map_t *)map_val(map);
-    ks = map_get_keys(mp);
-    vs = map_get_values(mp);
-    n  = map_get_size(mp);
-    if (is_immed(key)) {
-	for (i = 0; i < n; i++) {
-	    if (ks[i] == key) {
-		return vs[i];
+    const Eterm *vs;
+
+    if (is_flatmap(map)) {
+	flatmap_t *mp;
+	Eterm *ks;
+	Uint i;
+	Uint n;
+
+	mp = (flatmap_t *)flatmap_val(map);
+	ks = flatmap_get_keys(mp);
+	vs = flatmap_get_values(mp);
+	n  = flatmap_get_size(mp);
+	if (is_immed(key)) {
+	    for (i = 0; i < n; i++) {
+		if (ks[i] == key) {
+		    return vs[i];
+		}
 	    }
-	}
-    } else {
-	for (i = 0; i < n; i++) {
-	    if (EQ(ks[i], key)) {
-		return vs[i];
+	} else {
+	    for (i = 0; i < n; i++) {
+		if (EQ(ks[i], key)) {
+		    return vs[i];
+		}
 	    }
 	}
+	return THE_NON_VALUE;
     }
-    return THE_NON_VALUE;
+
+    ASSERT(is_hashmap(map));
+    ASSERT(hx == hashmap_make_hash(key));
+    vs = erts_hashmap_get(hx, key, map);
+    return vs ? *vs : THE_NON_VALUE;
 }
 
 #define GET_TERM(term, dest)					\
@@ -6505,7 +6631,39 @@ new_map(Process* p, Eterm* reg, BeamInstr* I)
     Eterm *mhp,*thp;
     Eterm *E;
     BeamInstr *ptr;
-    map_t *mp;
+    flatmap_t *mp;
+    ErtsHeapFactory factory;
+
+    ptr = &Arg(4);
+
+    if (n > 2*MAP_SMALL_MAP_LIMIT) {
+        Eterm res;
+	if (HeapWordsLeft(p) < n) {
+	    erts_garbage_collect(p, n, reg, Arg(2));
+	}
+
+	mhp = p->htop;
+	thp = p->htop;
+	E   = p->stop;
+
+	for (i = 0; i < n/2; i++) {
+	    GET_TERM(*ptr++, *mhp++);
+	    GET_TERM(*ptr++, *mhp++);
+	}
+
+	p->htop = mhp;
+
+        factory.p = p;
+        res = erts_hashmap_from_array(&factory, thp, n/2, 0);
+        if (p->mbuf) {
+            Uint live = Arg(2);
+            reg[live] = res;
+            erts_garbage_collect(p, 0, reg, live+1);
+            res       = reg[live];
+            E = p->stop;
+        }
+        return res;
+    }
 
     if (HeapWordsLeft(p) < need) {
 	erts_garbage_collect(p, need, reg, Arg(2));
@@ -6514,12 +6672,11 @@ new_map(Process* p, Eterm* reg, BeamInstr* I)
     thp    = p->htop;
     mhp    = thp + 1 + n/2;
     E      = p->stop;
-    ptr    = &Arg(4);
     keys   = make_tuple(thp);
     *thp++ = make_arityval(n/2);
 
-    mp = (map_t *)mhp; mhp += MAP_HEADER_SIZE;
-    mp->thing_word = MAP_HEADER;
+    mp = (flatmap_t *)mhp; mhp += MAP_HEADER_FLATMAP_SZ;
+    mp->thing_word = MAP_HEADER_FLATMAP;
     mp->size = n/2;
     mp->keys = keys;
 
@@ -6528,7 +6685,7 @@ new_map(Process* p, Eterm* reg, BeamInstr* I)
 	GET_TERM(*ptr++, *mhp++);
     }
     p->htop = mhp;
-    return make_map(mp);
+    return make_flatmap(mp);
 }
 
 static Eterm
@@ -6538,7 +6695,7 @@ update_map_assoc(Process* p, Eterm* reg, Eterm map, BeamInstr* I)
     Uint num_old;
     Uint num_updates;
     Uint need;
-    map_t *old_mp, *mp;
+    flatmap_t *old_mp, *mp;
     Eterm res;
     Eterm* hp;
     Eterm* E;
@@ -6548,12 +6705,43 @@ update_map_assoc(Process* p, Eterm* reg, Eterm map, BeamInstr* I)
     Eterm new_key;
     Eterm* kp;
 
-    if (is_not_map(map)) {
-	return THE_NON_VALUE;
+    new_p = &Arg(5);
+    num_updates = Arg(4) / 2;
+
+    if (is_not_flatmap(map)) {
+	Uint32 hx;
+	Eterm val;
+
+	/* apparently the compiler does not emit is_map instructions,
+	 * bad compiler */
+
+	if (is_not_hashmap(map))
+	    return THE_NON_VALUE;
+
+	res = map;
+	E = p->stop;
+	while(num_updates--) {
+	    /* assoc can't fail */
+	    GET_TERM(new_p[0], new_key);
+	    GET_TERM(new_p[1], val);
+	    hx = hashmap_make_hash(new_key);
+
+	    res = erts_hashmap_insert(p, hx, new_key, val, res,  0);
+	    if (p->mbuf) {
+		Uint live = Arg(3);
+		reg[live] = res;
+		erts_garbage_collect(p, 0, reg, live+1);
+		res       = reg[live];
+		E = p->stop;
+	    }
+
+	    new_p += 2;
+	}
+	return res;
     }
 
-    old_mp = (map_t *) map_val(map);
-    num_old = map_get_size(old_mp);
+    old_mp  = (flatmap_t *) flatmap_val(map);
+    num_old = flatmap_get_size(old_mp);
 
     /*
      * If the old map is empty, create a new map.
@@ -6568,14 +6756,13 @@ update_map_assoc(Process* p, Eterm* reg, Eterm map, BeamInstr* I)
      * update list are new).
      */
 
-    num_updates = Arg(4) / 2;
-    need = 2*(num_old+num_updates) + 1 + MAP_HEADER_SIZE;
+    need = 2*(num_old+num_updates) + 1 + MAP_HEADER_FLATMAP_SZ;
     if (HeapWordsLeft(p) < need) {
 	Uint live = Arg(3);
 	reg[live] = map;
 	erts_garbage_collect(p, need, reg, live+1);
 	map      = reg[live];
-	old_mp   = (map_t *)map_val(map);
+	old_mp   = (flatmap_t *)flatmap_val(map);
     }
 
     /*
@@ -6606,16 +6793,15 @@ update_map_assoc(Process* p, Eterm* reg, Eterm map, BeamInstr* I)
     kp = p->htop + 1;		/* Point to first key */
     hp = kp + num_old + num_updates;
 
-    res = make_map(hp);
-    mp = (map_t *)hp;
-    hp += MAP_HEADER_SIZE;
-    mp->thing_word = MAP_HEADER;
+    res = make_flatmap(hp);
+    mp = (flatmap_t *)hp;
+    hp += MAP_HEADER_FLATMAP_SZ;
+    mp->thing_word = MAP_HEADER_FLATMAP;
     mp->keys = make_tuple(kp-1);
 
-    old_vals = map_get_values(old_mp);
-    old_keys = map_get_keys(old_mp);
+    old_vals = flatmap_get_values(old_mp);
+    old_keys = flatmap_get_keys(old_mp);
 
-    new_p = &Arg(5);
     GET_TERM(*new_p, new_key);
     n = num_updates;
 
@@ -6701,8 +6887,19 @@ update_map_assoc(Process* p, Eterm* reg, Eterm map, BeamInstr* I)
 
     n = kp - p->htop - 1;	/* Actual number of keys/values */
     *p->htop = make_arityval(n);
+    p->htop  = hp;
     mp->size = n;
-    p->htop = hp;
+
+    /* The expensive case, need to build a hashmap */
+    if (n > MAP_SMALL_MAP_LIMIT) {
+	res = erts_hashmap_from_ks_and_vs(p,flatmap_get_keys(mp),flatmap_get_values(mp),n);
+	if (p->mbuf) {
+	    Uint live = Arg(3);
+	    reg[live] = res;
+	    erts_garbage_collect(p, 0, reg, live+1);
+	    res       = reg[live];
+	}
+    }
     return res;
 }
 
@@ -6717,7 +6914,7 @@ update_map_exact(Process* p, Eterm* reg, Eterm map, BeamInstr* I)
     Uint i;
     Uint num_old;
     Uint need;
-    map_t *old_mp, *mp;
+    flatmap_t *old_mp, *mp;
     Eterm res;
     Eterm* hp;
     Eterm* E;
@@ -6726,18 +6923,61 @@ update_map_exact(Process* p, Eterm* reg, Eterm map, BeamInstr* I)
     BeamInstr* new_p;
     Eterm new_key;
 
-    if (is_not_map(map)) {
-	return THE_NON_VALUE;
+    new_p = &Arg(5);
+    n = Arg(4) / 2;		/* Number of values to be updated */
+    ASSERT(n > 0);
+
+    if (is_not_flatmap(map)) {
+	Uint32 hx;
+	Eterm val;
+
+	/* apparently the compiler does not emit is_map instructions,
+	 * bad compiler */
+
+	if (is_not_hashmap(map)) {
+	    p->freason = BADMAP;
+	    p->fvalue = map;
+	    return THE_NON_VALUE;
+	}
+
+	res = map;
+	E = p->stop;
+	while(n--) {
+	    GET_TERM(new_p[0], new_key);
+	    GET_TERM(new_p[1], val);
+	    hx = hashmap_make_hash(new_key);
+
+	    res = erts_hashmap_insert(p, hx, new_key, val, res,  1);
+	    if (is_non_value(res)) {
+		p->fvalue = new_key;
+		p->freason = BADKEY;
+		return res;
+	    }
+
+	    if (p->mbuf) {
+		Uint live = Arg(3);
+		reg[live] = res;
+		erts_garbage_collect(p, 0, reg, live+1);
+		res       = reg[live];
+		E = p->stop;
+	    }
+
+	    new_p += 2;
+	}
+	return res;
     }
 
-    old_mp = (map_t *) map_val(map);
-    num_old = map_get_size(old_mp);
+    old_mp = (flatmap_t *) flatmap_val(map);
+    num_old = flatmap_get_size(old_mp);
 
     /*
-     * If the old map is empty, create a new map.
+     * If the old map is empty, fail.
      */
 
     if (num_old == 0) {
+	E = p->stop;
+	p->freason = BADKEY;
+	GET_TERM(new_p[0], p->fvalue);
 	return THE_NON_VALUE;
     }
 
@@ -6745,13 +6985,13 @@ update_map_exact(Process* p, Eterm* reg, Eterm map, BeamInstr* I)
      * Allocate the exact heap space needed.
      */
 
-    need = num_old + MAP_HEADER_SIZE;
+    need = num_old + MAP_HEADER_FLATMAP_SZ;
     if (HeapWordsLeft(p) < need) {
 	Uint live = Arg(3);
 	reg[live] = map;
 	erts_garbage_collect(p, need, reg, live+1);
 	map      = reg[live];
-	old_mp   = (map_t *)map_val(map);
+	old_mp   = (flatmap_t *)flatmap_val(map);
     }
 
     /*
@@ -6761,23 +7001,20 @@ update_map_exact(Process* p, Eterm* reg, Eterm map, BeamInstr* I)
     hp = p->htop;
     E = p->stop;
 
-    old_vals = map_get_values(old_mp);
-    old_keys = map_get_keys(old_mp);
+    old_vals = flatmap_get_values(old_mp);
+    old_keys = flatmap_get_keys(old_mp);
 
-    res = make_map(hp);
-    mp = (map_t *)hp;
-    hp += MAP_HEADER_SIZE;
-    mp->thing_word = MAP_HEADER;
+    res = make_flatmap(hp);
+    mp = (flatmap_t *)hp;
+    hp += MAP_HEADER_FLATMAP_SZ;
+    mp->thing_word = MAP_HEADER_FLATMAP;
     mp->size = num_old;
     mp->keys = old_mp->keys;
 
     /* Get array of key/value pairs to be updated */
-    new_p = &Arg(5);
     GET_TERM(*new_p, new_key);
 
     /* Update all values */
-    n = Arg(4) / 2;		/* Number of values to be updated */
-    ASSERT(n > 0);
     for (i = 0; i < num_old; i++) {
 	if (!EQ(*old_keys, new_key)) {
 	    /* Not same keys */
@@ -6810,6 +7047,8 @@ update_map_exact(Process* p, Eterm* reg, Eterm map, BeamInstr* I)
      * update list did not previously exist.
      */
     ASSERT(hp == p->htop + need);
+    p->freason = BADKEY;
+    p->fvalue = new_key;
     return THE_NON_VALUE;
 }
 #undef GET_TERM
diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c
index 41c1b5d2c2..0d40201934 100644
--- a/erts/emulator/beam/beam_load.c
+++ b/erts/emulator/beam/beam_load.c
@@ -36,6 +36,7 @@
 #include "beam_catches.h"
 #include "erl_binary.h"
 #include "erl_zlib.h"
+#include "erl_map.h"
 
 #ifdef HIPE
 #include "hipe_bif0.h"
@@ -245,7 +246,7 @@ typedef struct {
 /*
  * This structure contains all information about the module being loaded.
  */  
-
+#define MD5_SIZE 16
 typedef struct LoaderState {
     /*
      * The current logical file within the binary.
@@ -292,7 +293,7 @@ typedef struct LoaderState {
     StringPatch* string_patches; /* Linked list of position into string table to patch. */
     BeamInstr catches;		/* Linked list of catch_yf instructions. */
     unsigned loaded_size;	/* Final size of code when loaded. */
-    byte mod_md5[16];		/* MD5 for module code. */
+    byte mod_md5[MD5_SIZE];	/* MD5 for module code. */
     int may_load_nif;           /* true if NIFs may later be loaded for this module */  
     int on_load;		/* Index in the code for the on_load function
 				 * (or 0 if there is no on_load function)
@@ -528,6 +529,8 @@ static Eterm exported_from_module(Process* p, Eterm mod);
 static Eterm functions_in_module(Process* p, Eterm mod);
 static Eterm attributes_for_module(Process* p, Eterm mod);
 static Eterm compilation_info_for_module(Process* p, Eterm mod);
+static Eterm md5_of_module(Process* p, Eterm mod);
+static Eterm has_native(Process* p, Eterm mod);
 static Eterm native_addresses(Process* p, Eterm mod);
 int patch_funentries(Eterm Patchlist);
 int patch(Eterm Addresses, Uint fe);
@@ -648,6 +651,7 @@ erts_prepare_loading(Binary* magic, Process *c_p, Eterm group_leader,
     stp->code[MI_COMPILE_PTR] = 0;
     stp->code[MI_COMPILE_SIZE] = 0;
     stp->code[MI_COMPILE_SIZE_ON_HEAP] = 0;
+    stp->code[MI_MD5_PTR] = 0;
 
     /*
      * Read the atom table.
@@ -3169,7 +3173,11 @@ gen_increment_from_minus(LoaderState* stp, GenOpArg Reg, GenOpArg Integer,
 static int
 negation_is_small(LoaderState* stp, GenOpArg Int)
 {
-    return Int.type == TAG_i && IS_SSMALL(-Int.val);
+    /* Check for the rare case of overflow in BeamInstr (UWord) -> Sint
+     * Cast to the correct type before using IS_SSMALL (Sint) */
+    return Int.type == TAG_i &&
+           !(Int.val & ~((((BeamInstr)1) << ((sizeof(Sint)*8)-1))-1)) &&
+           IS_SSMALL(-((Sint)Int.val));
 }
 
 
@@ -3319,9 +3327,10 @@ gen_select_tuple_arity(LoaderState* stp, GenOpArg S, GenOpArg Fail,
 
 {
     GenOp* op;
+    GenOpArg *tmp;
     int arity = Size.val + 3;
     int size = Size.val / 2;
-    int i;
+    int i, j, align = 0;
 
     /*
      * Verify the validity of the list.
@@ -3336,9 +3345,37 @@ gen_select_tuple_arity(LoaderState* stp, GenOpArg S, GenOpArg Fail,
     }
 
     /*
+     * Use a special-cased instruction if there are only two values.
+     */
+    if (size == 2) {
+	NEW_GENOP(stp, op);
+	op->next = NULL;
+	op->op = genop_i_select_tuple_arity2_6;
+	GENOP_ARITY(op, arity - 1);
+	op->a[0] = S;
+	op->a[1] = Fail;
+	op->a[2].type = TAG_u;
+	op->a[2].val  = Rest[0].val;
+	op->a[3].type = TAG_u;
+	op->a[3].val  = Rest[2].val;
+	op->a[4] = Rest[1];
+	op->a[5] = Rest[3];
+
+	return op;
+    }
+
+    /*
      * Generate the generic instruction.
+     * Assumption:
+     *   Few different tuple arities to select on (fewer than 20).
+     *   Use linear scan approach.
      */
 
+    align = 1;
+
+    arity += 2*align;
+    size  += align;
+
     NEW_GENOP(stp, op);
     op->next = NULL;
     op->op = genop_i_select_tuple_arity_3;
@@ -3346,39 +3383,36 @@ gen_select_tuple_arity(LoaderState* stp, GenOpArg S, GenOpArg Fail,
     op->a[0] = S;
     op->a[1] = Fail;
     op->a[2].type = TAG_u;
-    op->a[2].val = Size.val / 2;
-    for (i = 0; i < Size.val; i += 2) {
-	op->a[i+3].type = TAG_v;
-	op->a[i+3].val = make_arityval(Rest[i].val);
-	op->a[i+4] = Rest[i+1];
-    }
+    op->a[2].val = size;
 
-    /*
-     * Sort the values to make them useful for a binary search.
-     */
+    tmp = (GenOpArg *) erts_alloc(ERTS_ALC_T_LOADER_TMP, sizeof(GenOpArg)*(arity-2*align));
 
-    qsort(op->a+3, size, 2*sizeof(GenOpArg), 
-	   (int (*)(const void *, const void *)) genopargcompare);
-#ifdef DEBUG
-    for (i = 3; i < arity-2; i += 2) {
-	ASSERT(op->a[i].val < op->a[i+2].val);
+    for (i = 3; i < arity - 2*align; i+=2) {
+	tmp[i-3].type = TAG_v;
+	tmp[i-3].val  = make_arityval(Rest[i-3].val);
+	tmp[i-2]      = Rest[i-2];
     }
-#endif
 
     /*
-     * Use a special-cased instruction if there are only two values.
+     * Sort the values to make them useful for a sentinel search
      */
-    if (size == 2) {
-	op->op = genop_i_select_tuple_arity2_6;
-	op->arity--;
-	op->a[2].type = TAG_u;
-	op->a[2].val = arityval(op->a[3].val);
-	op->a[3] = op->a[4];
-	op->a[4].type = TAG_u;
-	op->a[4].val = arityval(op->a[5].val);
-	op->a[5] = op->a[6];
+
+    qsort(tmp, size - align, 2*sizeof(GenOpArg),
+	    (int (*)(const void *, const void *)) genopargcompare);
+
+    j = 3;
+    for (i = 3; i < arity - 2*align; i += 2) {
+	op->a[j]        = tmp[i-3];
+	op->a[j + size] = tmp[i-2];
+	j++;
     }
 
+    erts_free(ERTS_ALC_T_LOADER_TMP, (void *) tmp);
+
+    op->a[j].type = TAG_u;
+    op->a[j].val  = ~((BeamInstr)0);
+    op->a[j+size] = Fail;
+
     return op;
 }
 
@@ -3600,45 +3634,109 @@ gen_select_val(LoaderState* stp, GenOpArg S, GenOpArg Fail,
 	       GenOpArg Size, GenOpArg* Rest)
 {
     GenOp* op;
+    GenOpArg *tmp;
     int arity = Size.val + 3;
     int size = Size.val / 2;
-    int i;
+    int i, j, align = 0;
+
+    if (size == 2) {
+
+	/*
+	 * Use a special-cased instruction if there are only two values.
+	 */
+
+	NEW_GENOP(stp, op);
+	op->next = NULL;
+	op->op = genop_i_select_val2_6;
+	GENOP_ARITY(op, arity - 1);
+	op->a[0] = S;
+	op->a[1] = Fail;
+	op->a[2] = Rest[0];
+	op->a[3] = Rest[2];
+	op->a[4] = Rest[1];
+	op->a[5] = Rest[3];
+
+	return op;
+
+    } else if (size > 10) {
+
+	/* binary search instruction */
+
+	NEW_GENOP(stp, op);
+	op->next = NULL;
+	op->op = genop_i_select_val_bins_3;
+	GENOP_ARITY(op, arity);
+	op->a[0] = S;
+	op->a[1] = Fail;
+	op->a[2].type = TAG_u;
+	op->a[2].val = size;
+	for (i = 3; i < arity; i++) {
+	    op->a[i] = Rest[i-3];
+	}
+
+	/*
+	 * Sort the values to make them useful for a binary search.
+	 */
+
+	qsort(op->a+3, size, 2*sizeof(GenOpArg),
+		(int (*)(const void *, const void *)) genopargcompare);
+#ifdef DEBUG
+	for (i = 3; i < arity-2; i += 2) {
+	    ASSERT(op->a[i].val < op->a[i+2].val);
+	}
+#endif
+	return op;
+    }
+
+    /* linear search instruction */
+
+    align = 1;
+
+    arity += 2*align;
+    size  += align;
 
     NEW_GENOP(stp, op);
     op->next = NULL;
-    op->op = genop_i_select_val_3;
+    op->op = genop_i_select_val_lins_3;
     GENOP_ARITY(op, arity);
     op->a[0] = S;
     op->a[1] = Fail;
     op->a[2].type = TAG_u;
     op->a[2].val = size;
-    for (i = 3; i < arity; i++) {
-	op->a[i] = Rest[i-3];
+
+    tmp = (GenOpArg *) erts_alloc(ERTS_ALC_T_LOADER_TMP, sizeof(GenOpArg)*(arity-2*align));
+
+    for (i = 3; i < arity - 2*align; i++) {
+	tmp[i-3] = Rest[i-3];
     }
 
     /*
-     * Sort the values to make them useful for a binary search.
+     * Sort the values to make them useful for a sentinel search
      */
 
-    qsort(op->a+3, size, 2*sizeof(GenOpArg), 
-	  (int (*)(const void *, const void *)) genopargcompare);
-#ifdef DEBUG
-    for (i = 3; i < arity-2; i += 2) {
-	ASSERT(op->a[i].val < op->a[i+2].val);
+    qsort(tmp, size - align, 2*sizeof(GenOpArg),
+	    (int (*)(const void *, const void *)) genopargcompare);
+
+    j = 3;
+    for (i = 3; i < arity - 2*align; i += 2) {
+	op->a[j]      = tmp[i-3];
+	op->a[j+size] = tmp[i-2];
+	j++;
     }
-#endif
 
-    /*
-     * Use a special-cased instruction if there are only two values.
-     */
-    if (size == 2) {
-	op->op = genop_i_select_val2_6;
-	op->arity--;
-	op->a[2] = op->a[3];
-	op->a[3] = op->a[4];
-	op->a[4] = op->a[5];
-	op->a[5] = op->a[6];
+    erts_free(ERTS_ALC_T_LOADER_TMP, (void *) tmp);
+
+    /* add sentinel */
+
+    op->a[j].type = TAG_u;
+    op->a[j].val  = ~((BeamInstr)0);
+    op->a[j+size] = Fail;
+
+#ifdef DEBUG
+    for (i = 0; i < size - 1; i++) {
+	ASSERT(op->a[i+3].val <= op->a[i+4].val);
     }
+#endif
 
     return op;
 }
@@ -3959,8 +4057,139 @@ tuple_append_put(LoaderState* stp, GenOpArg Arity, GenOpArg Dst,
 }
 
 /*
+ * Predicate to test whether the given literal is a map.
+ */
+
+static int
+literal_is_map(LoaderState* stp, GenOpArg Lit)
+{
+    Eterm term;
+
+    ASSERT(Lit.type == TAG_q);
+    term = stp->literals[Lit.val].term;
+    return is_map(term);
+}
+
+/*
+ * Predicate to test whether the given literal is an empty map.
+ */
+
+static int
+is_empty_map(LoaderState* stp, GenOpArg Lit)
+{
+    Eterm term;
+
+    if (Lit.type != TAG_q) {
+	return 0;
+    }
+    term = stp->literals[Lit.val].term;
+    return is_flatmap(term) && flatmap_get_size(flatmap_val(term)) == 0;
+}
+
+/*
+ * Pseudo predicate map_key_sort that will sort the Rest operand for
+ * map instructions as a side effect.
+ */
+
+typedef struct SortGenOpArg {
+    Eterm term;			/* Term to use for comparing  */
+    GenOpArg arg;		/* Original data */
+} SortGenOpArg;
+
+static int
+genopargtermcompare(SortGenOpArg* a, SortGenOpArg* b)
+{
+    return CMP_TERM(a->term, b->term);
+}
+
+static int
+map_key_sort(LoaderState* stp, GenOpArg Size, GenOpArg* Rest)
+{
+    SortGenOpArg* t;
+    unsigned size = Size.val;
+    unsigned i;
+
+    if (size == 2) {
+	return 1;		/* Already sorted. */
+    }
+
+
+    t = (SortGenOpArg *) erts_alloc(ERTS_ALC_T_TMP, size*sizeof(SortGenOpArg));
+
+    /*
+     * Copy original data and sort keys to a temporary array.
+     */
+    for (i = 0; i < size; i += 2) {
+	t[i].arg = Rest[i];
+	switch (Rest[i].type) {
+	case TAG_a:
+	    t[i].term = Rest[i].val;
+	    ASSERT(is_atom(t[i].term));
+	    break;
+	case TAG_i:
+	    t[i].term = make_small(Rest[i].val);
+	    break;
+	case TAG_n:
+	    t[i].term = NIL;
+	    break;
+	case TAG_q:
+	    t[i].term = stp->literals[Rest[i].val].term;
+	    break;
+	default:
+	    /*
+	     * Not a literal key. Not allowed. Only a single
+	     * variable key is allowed in each map instruction.
+	     */
+	    erts_free(ERTS_ALC_T_TMP, (void *) t);
+	    return 0;
+	}
+#ifdef DEBUG
+	t[i+1].term = THE_NON_VALUE;
+#endif
+	t[i+1].arg = Rest[i+1];
+    }
+
+    /*
+     * Sort the temporary array.
+     */
+    qsort((void *) t, size / 2, 2 * sizeof(SortGenOpArg),
+	  (int (*)(const void *, const void *)) genopargtermcompare);
+
+    /*
+     * Copy back the sorted, original data.
+     */
+    for (i = 0; i < size; i++) {
+	Rest[i] = t[i].arg;
+    }
+
+    erts_free(ERTS_ALC_T_TMP, (void *) t);
+    return 1;
+}
+
+static int
+hash_genop_arg(LoaderState* stp, GenOpArg Key, Uint32* hx)
+{
+    switch (Key.type) {
+    case TAG_a:
+	*hx = hashmap_make_hash(Key.val);
+	return 1;
+    case TAG_i:
+	*hx = hashmap_make_hash(make_small(Key.val));
+	return 1;
+    case TAG_n:
+	*hx = hashmap_make_hash(NIL);
+	return 1;
+    case TAG_q:
+	*hx = hashmap_make_hash(stp->literals[Key.val].term);
+	return 1;
+    default:
+	return 0;
+    }
+}
+
+/*
  * Replace a get_map_elements with one key to an instruction with one
- * element
+ * element.
  */
 
 static GenOp*
@@ -3968,37 +4197,99 @@ gen_get_map_element(LoaderState* stp, GenOpArg Fail, GenOpArg Src,
 		    GenOpArg Size, GenOpArg* Rest)
 {
     GenOp* op;
+    GenOpArg Key;
+    Uint32 hx = 0;
 
     ASSERT(Size.type == TAG_u);
 
     NEW_GENOP(stp, op);
     op->next = NULL;
-    op->op = genop_get_map_element_4;
-    op->arity = 4;
-
     op->a[0] = Fail;
     op->a[1] = Src;
     op->a[2] = Rest[0];
-    op->a[3] = Rest[1];
+
+    Key = Rest[0];
+    if (hash_genop_arg(stp, Key, &hx)) {
+	op->arity = 5;
+	op->op = genop_i_get_map_element_hash_5;
+	op->a[3].type = TAG_u;
+	op->a[3].val = (BeamInstr) hx;
+	op->a[4] = Rest[1];
+    } else {
+	op->arity = 4;
+	op->op = genop_i_get_map_element_4;
+	op->a[3] = Rest[1];
+    }
     return op;
 }
 
 static GenOp*
-gen_has_map_field(LoaderState* stp, GenOpArg Fail, GenOpArg Src,
-		    GenOpArg Size, GenOpArg* Rest)
+gen_get_map_elements(LoaderState* stp, GenOpArg Fail, GenOpArg Src,
+		     GenOpArg Size, GenOpArg* Rest)
 {
     GenOp* op;
+    Uint32 hx;
+    Uint i;
+    GenOpArg* dst;
+#ifdef DEBUG
+    int good_hash;
+#endif
 
     ASSERT(Size.type == TAG_u);
 
     NEW_GENOP(stp, op);
+    op->op = genop_i_get_map_elements_3;
+    GENOP_ARITY(op, 3 + 3*(Size.val/2));
     op->next = NULL;
-    op->op = genop_has_map_field_3;
-    op->arity = 4;
+    op->a[0] = Fail;
+    op->a[1] = Src;
+    op->a[2].type = TAG_u;
+    op->a[2].val = 3*(Size.val/2);
+
+    dst = op->a+3;
+    for (i = 0; i < Size.val / 2; i++) {
+	dst[0] = Rest[2*i];
+	dst[1] = Rest[2*i+1];
+#ifdef DEBUG
+	good_hash =
+#endif
+	    hash_genop_arg(stp, dst[0], &hx);
+#ifdef DEBUG
+	ASSERT(good_hash);
+#endif
+	dst[2].type = TAG_u;
+	dst[2].val = (BeamInstr) hx;
+	dst += 3;
+    }
+    return op;
+}
+
+static GenOp*
+gen_has_map_fields(LoaderState* stp, GenOpArg Fail, GenOpArg Src,
+		   GenOpArg Size, GenOpArg* Rest)
+{
+    GenOp* op;
+    Uint i;
+    Uint n;
+
+    ASSERT(Size.type == TAG_u);
+    n = Size.val;
+
+    NEW_GENOP(stp, op);
+    GENOP_ARITY(op, 3 + 2*n);
+    op->next = NULL;
+    op->op = genop_get_map_elements_3;
 
     op->a[0] = Fail;
     op->a[1] = Src;
-    op->a[2] = Rest[0];
+    op->a[2].type = TAG_u;
+    op->a[2].val = 2*n;
+
+    for (i = 0; i < n; i++) {
+	op->a[3+2*i] = Rest[i];
+	op->a[3+2*i+1].type = TAG_x;
+	op->a[3+2*i+1].val = 0;	/* x(0); normally not used */
+    }
     return op;
 }
 
@@ -4042,7 +4333,7 @@ freeze_code(LoaderState* stp)
     }
     size = (stp->ci * sizeof(BeamInstr)) +
 	(stp->total_literal_size * sizeof(Eterm)) +
-	strtab_size + attr_size + compile_size + line_size;
+	strtab_size + attr_size + compile_size + MD5_SIZE + line_size;
 
     /*
      * Move the code to its final location.
@@ -4251,11 +4542,20 @@ freeze_code(LoaderState* stp)
 	code[MI_COMPILE_SIZE_ON_HEAP] = decoded_size;
     }
     CHKBLK(ERTS_ALC_T_CODE,code);
+    {
+	byte* md5_sum = str_table + strtab_size + attr_size + compile_size;
+	CHKBLK(ERTS_ALC_T_CODE,code);
+	sys_memcpy(md5_sum, stp->mod_md5, MD5_SIZE);
+	CHKBLK(ERTS_ALC_T_CODE,code);
+	code[MI_MD5_PTR] = (BeamInstr) md5_sum;
+	CHKBLK(ERTS_ALC_T_CODE,code);
+    }
+    CHKBLK(ERTS_ALC_T_CODE,code);
 
     /*
      * Make sure that we have not overflowed the allocated code space.
      */
-    ASSERT(str_table + strtab_size + attr_size + compile_size ==
+    ASSERT(str_table + strtab_size + attr_size + compile_size + MD5_SIZE ==
 	   ((byte *) code) + size);
 
     /*
@@ -5108,10 +5408,14 @@ erts_module_info_0(Process* p, Eterm module)
     hp += 3; \
     list = CONS(hp, tup, list)
 
+    BUILD_INFO(am_md5);
+#ifdef HIPE
+    BUILD_INFO(am_native);
+#endif
     BUILD_INFO(am_compile);
     BUILD_INFO(am_attributes);
-    BUILD_INFO(am_imports);
     BUILD_INFO(am_exports);
+    BUILD_INFO(am_module);
 #undef BUILD_INFO
     return list;
 }
@@ -5121,8 +5425,8 @@ erts_module_info_1(Process* p, Eterm module, Eterm what)
 {
     if (what == am_module) {
 	return module;
-    } else if (what == am_imports) {
-	return NIL;
+    } else if (what == am_md5) {
+	return md5_of_module(p, module);
     } else if (what == am_exports) {
 	return exported_from_module(p, module);
     } else if (what == am_functions) {
@@ -5133,6 +5437,8 @@ erts_module_info_1(Process* p, Eterm module, Eterm what)
 	return compilation_info_for_module(p, module);
     } else if (what == am_native_addresses) {
 	return native_addresses(p, module);
+    } else if (what == am_native) {
+	return has_native(p, module);
     }
     return THE_NON_VALUE;
 }
@@ -5193,6 +5499,53 @@ functions_in_module(Process* p, /* Process whose heap to use. */
 }
 
 /*
+ * Returns 'true' if mod has any native compiled functions, otherwise 'false'
+ */
+
+static Eterm
+has_native(Process* p, Eterm mod)
+{
+    Eterm result = am_false;
+#ifdef HIPE
+    Module* modp;
+
+    if (is_not_atom(mod)) {
+        return THE_NON_VALUE;
+    }
+
+    modp = erts_get_module(mod, erts_active_code_ix());
+    if (modp == NULL) {
+        return THE_NON_VALUE;
+    }
+
+    if (erts_is_module_native(modp->curr.code)) {
+      result = am_true;
+    }
+#endif
+    return result;
+}
+
+int
+erts_is_module_native(BeamInstr* code)
+{
+    Uint i, num_functions;
+
+    /* Check NativeAdress of first real function in module */
+    if (code != NULL) {
+        num_functions = code[MI_NUM_FUNCTIONS];
+        for (i=0; i<num_functions; i++) {
+            BeamInstr* func_info = (BeamInstr *) code[MI_FUNCTIONS+i];
+            Eterm name = (Eterm) func_info[3];
+            if (is_atom(name)) {
+                return func_info[1] != 0;
+            }
+            else ASSERT(is_nil(name)); /* ignore BIF stubs */
+        }
+    }
+    return 0;
+}
+
+/*
  * Builds a list of all functions including native addresses.
  *     [{Name,Arity,NativeAddress},...]
  *
@@ -5311,7 +5664,7 @@ attributes_for_module(Process* p, /* Process whose heap to use. */
     Eterm result = NIL;
     Eterm* end;
 
-    if (is_not_atom(mod) || (is_not_list(result) && is_not_nil(result))) {
+    if (is_not_atom(mod)) {
 	return THE_NON_VALUE;
     }
 
@@ -5350,7 +5703,7 @@ compilation_info_for_module(Process* p, /* Process whose heap to use. */
     Eterm result = NIL;
     Eterm* end;
 
-    if (is_not_atom(mod) || (is_not_list(result) && is_not_nil(result))) {
+    if (is_not_atom(mod)) {
 	return THE_NON_VALUE;
     }
 
@@ -5373,6 +5726,37 @@ compilation_info_for_module(Process* p, /* Process whose heap to use. */
 }
 
 /*
+ * Returns the MD5 checksum for a module
+ *
+ * Returns a tagged term, or 0 on error.
+ */
+
+Eterm
+md5_of_module(Process* p, /* Process whose heap to use. */
+              Eterm mod) /* Tagged atom for module. */
+{
+    Module* modp;
+    BeamInstr* code;
+    Eterm res = NIL;
+
+    if (is_not_atom(mod)) {
+	return THE_NON_VALUE;
+    }
+
+    modp = erts_get_module(mod, erts_active_code_ix());
+    if (modp == NULL) {
+	return THE_NON_VALUE;
+    }
+    code = modp->curr.code;
+    if (code[MI_MD5_PTR] != 0) {
+      res = new_binary(p, (byte *) code[MI_MD5_PTR], MD5_SIZE);
+    } else {
+      res = am_undefined;
+    }
+    return res;
+}
+
+/*
  * Build a single {M,F,A,Loction} item to be part of
  * a stack trace.
  */
@@ -5548,7 +5932,7 @@ code_module_md5_1(BIF_ALIST_1)
 	res = am_undefined;
 	goto done;
     }
-    res = new_binary(p, stp->mod_md5, sizeof(stp->mod_md5));
+    res = new_binary(p, stp->mod_md5, MD5_SIZE);
 
  done:
     erts_free_aligned_binary_bytes(temp_alloc);
@@ -5841,6 +6225,7 @@ erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info)
     LoaderState* stp;
     BeamInstr Funcs;
     BeamInstr Patchlist;
+    Eterm MD5Bin;
     Eterm* tp;
     BeamInstr* code = NULL;
     BeamInstr* ptrs;
@@ -5869,12 +6254,15 @@ erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info)
 	goto error;
     }
     tp = tuple_val(Info);
-    if (tp[0] != make_arityval(2)) {
+    if (tp[0] != make_arityval(3)) {
       goto error;
     }
     Funcs = tp[1];
-    Patchlist = tp[2];        
-   
+    Patchlist = tp[2];
+    MD5Bin = tp[3];
+    if (is_not_binary(MD5Bin) || (binary_size(MD5Bin) != MD5_SIZE)) {
+	goto error;
+    }
     if ((n = erts_list_length(Funcs)) < 0) {
 	goto error;
     }
@@ -5924,6 +6312,7 @@ erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info)
     code_size = ((WORDS_PER_FUNCTION+1)*n + MI_FUNCTIONS + 2) * sizeof(BeamInstr);
     code_size += stp->chunks[ATTR_CHUNK].size;
     code_size += stp->chunks[COMPILE_CHUNK].size;
+    code_size += MD5_SIZE;
     code = erts_alloc_fnf(ERTS_ALC_T_CODE, code_size);
     if (!code) {
 	goto error;
@@ -5944,6 +6333,7 @@ erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info)
     code[MI_LITERALS_END] = 0;
     code[MI_LITERALS_OFF_HEAP] = 0;
     code[MI_ON_LOAD_FUNCTION_PTR] = 0;
+    code[MI_MD5_PTR] = 0;
     ci = MI_FUNCTIONS + n + 1;
 
     /*
@@ -6029,6 +6419,15 @@ erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info)
     if (info == NULL) {
 	goto error;
     }
+    {
+      byte *tmp = NULL;
+      byte *md5 = NULL;
+      if ((md5 = erts_get_aligned_binary_bytes(MD5Bin, &tmp)) != NULL) {
+        sys_memcpy(info, md5, MD5_SIZE);
+        code[MI_MD5_PTR] = (BeamInstr) info;
+      }
+      erts_free_aligned_binary_bytes(tmp);
+    }
 
     /*
      * Insert the module in the module table.
diff --git a/erts/emulator/beam/beam_load.h b/erts/emulator/beam/beam_load.h
index bd22b0c4de..46b0c60ab0 100644
--- a/erts/emulator/beam/beam_load.h
+++ b/erts/emulator/beam/beam_load.h
@@ -23,10 +23,10 @@
 #include "beam_opcodes.h"
 #include "erl_process.h"
 
+int erts_is_module_native(BeamInstr* code);
 Eterm beam_make_current_old(Process *c_p, ErtsProcLocks c_p_locks,
 			    Eterm module);
 
-
 typedef struct gen_op_entry {
    char* name;
    int arity;
@@ -91,7 +91,6 @@ extern Uint erts_total_code_size;
 #define MI_LITERALS_END		8
 #define MI_LITERALS_OFF_HEAP	9
 
-
 /*
  * Pointer to the on_load function (or NULL if none).
  */
@@ -103,6 +102,11 @@ extern Uint erts_total_code_size;
 #define MI_LINE_TABLE 11
 
 /*
+ * Pointer to the module MD5 sum (16 bytes)
+ */
+#define MI_MD5_PTR 12
+
+/*
  * Start of function pointer table.  This table contains pointers to
  * all functions in the module plus an additional pointer just beyond
  * the end of the last function.
@@ -111,7 +115,7 @@ extern Uint erts_total_code_size;
  * this table.
  */
 
-#define MI_FUNCTIONS         12
+#define MI_FUNCTIONS         13
 
 /*
  * Layout of the line table.
diff --git a/erts/emulator/beam/benchmark.c b/erts/emulator/beam/benchmark.c
index 8613131176..b16fe6b271 100644
--- a/erts/emulator/beam/benchmark.c
+++ b/erts/emulator/beam/benchmark.c
@@ -37,37 +37,9 @@ unsigned long long major_gc;
 
 #ifdef BM_TIMERS
 
-#if (defined(__i386__) || defined(__x86_64__)) && USE_PERFCTR
-
-#include "libperfctr.h"
-struct vperfctr *system_clock;
-double cpu_khz;
-BM_NEW_TIMER(start);
-
-static double get_hrvtime(void)
-{
-    unsigned long long ticks;
-    double milli_seconds;
-
-    ticks = vperfctr_read_tsc(system_clock);
-    milli_seconds = (double)ticks / cpu_khz;
-    return milli_seconds;
-}
-
-static void stop_hrvtime(void)
-{
-    if(system_clock)
-    {
-	vperfctr_stop(system_clock);
-	vperfctr_close(system_clock);
-	system_clock = NULL;
-    }
-}
-
-#else /* not perfctr, asuming Solaris */
+/* assuming Solaris */
 #include <time.h>
 BM_TIMER_T system_clock;
-#endif
 
 unsigned long local_pause_times[MAX_PAUSE_TIME];
 unsigned long pause_times[MAX_PAUSE_TIME];
@@ -117,40 +89,6 @@ unsigned long long message_sizes[1000];
 void init_benchmarking()
 {
 #ifdef BM_TIMERS
-#if (defined(__i386__) || defined(__x86_64__)) && USE_PERFCTR
-    /* pass `--with-perfctr=/path/to/perfctr' when configuring */
-    struct perfctr_info info;
-    struct vperfctr_control control;
-    int i;
-
-    system_clock = vperfctr_open();
-    if (system_clock != NULL)
-    {
-        if (vperfctr_info(system_clock,&info) >= 0)
-        {
-            cpu_khz = (double)info.cpu_khz;
-            if (info.cpu_features & PERFCTR_FEATURE_RDTSC)
-            {
-                memset(&control,0,sizeof control);
-                control.cpu_control.tsc_on = 1;
-            }
-        }
-        if (vperfctr_control(system_clock,&control) < 0)
-        {
-            vperfctr_close(system_clock);
-            system_clock = NULL;
-        }
-    }
-
-    for (i = 0; i < 1000; i++)
-    {
-        BM_START_TIMER(system);
-        BM_STOP_TIMER(system);
-    }
-
-    timer_time = system_time / 1000;
-    start_time = 0;
-#else
     int i;
     for (i = 0; i < 1000; i++)
     {
@@ -158,7 +96,6 @@ void init_benchmarking()
         BM_STOP_TIMER(system);
     }
     timer_time = system_time / 1000;
-#endif
 
     for (i = 0; i < MAX_PAUSE_TIME; i++) {
         local_pause_times[i] = 0;
diff --git a/erts/emulator/beam/benchmark.h b/erts/emulator/beam/benchmark.h
index 766edaac42..7fc3933f3d 100644
--- a/erts/emulator/beam/benchmark.h
+++ b/erts/emulator/beam/benchmark.h
@@ -37,10 +37,7 @@
 
 /* BM_TIMERS keeps track of the time spent in diferent parts of the
  * system. It only measures accual active time, not time spent in idle
- * mode. These timers requires hardware support.  For Linux, use the
- * package perfctr from user.it.uu.se/~mikpe/linux/perfctr. If this
- * package is not specified when configuring the system
- * (--with-perfctr=PATH), the Solaris hrtime_t will be used.
+ * mode. Currently, the Solaris hrtime_t will be used.
  * To add new timers look below.
  */
 #define BM_TIMERS
@@ -142,43 +139,12 @@ extern unsigned long long major_gc;
  * meassure (send time in shared heap for instance).
  */
 
-#if (defined(__i386__) || defined(__x86_64__)) && USE_PERFCTR
-#include "libperfctr.h"
+/* (Assuming Solaris) */
 
-#define BM_TIMER_T double
-
-extern struct vperfctr *system_clock;
-extern double cpu_khz;
-extern BM_TIMER_T start_time;
-
-#define BM_START_TIMER(t) start_time =                                        \
-                          (BM_TIMER_T)vperfctr_read_tsc(system_clock) /       \
-                          cpu_khz;
-
-#define BM_STOP_TIMER(t) do {                                                 \
-    BM_TIMER_T tmp = ((BM_TIMER_T)vperfctr_read_tsc(system_clock) / cpu_khz); \
-    tmp -= (start_time + timer_time);                                         \
-    t##_time += (tmp > 0 ? tmp : 0);                                          \
-} while(0)
-
-#define BM_TIME_PRINTER(str,time) do {                                 \
-    int min,sec,milli,micro;                                           \
-    BM_TIMER_T tmp = (time) * 1000;                                    \
-    micro = (uint)(tmp - ((int)(tmp / 1000)) * 1000);                  \
-    tmp /= 1000;                                                       \
-    milli = (uint)(tmp - ((int)(tmp / 1000)) * 1000);                  \
-    tmp /= 1000;                                                       \
-    sec = (uint)(tmp - ((int)(tmp / 60)) * 60);                        \
-    min = (uint)tmp / 60;                                              \
-    erts_fprintf(file,str": %d:%02d.%03d %03d\n",min,sec,milli,micro);  \
-} while(0)
-
-#else /* !USE_PERFCTR  (Assuming Solaris) */
-
-#define BM_TIMER_T hrtime_t
-#define BM_START_TIMER(t) system_clock = sys_gethrtime()
+#define BM_TIMER_T ErtsMonotonicTime
+#define BM_START_TIMER(t) system_clock = ERTS_MONOTONIC_TO_NSEC(erts_os_monotonic_time())
 #define BM_STOP_TIMER(t) do {                                        \
-    BM_TIMER_T tmp = (sys_gethrtime() - system_clock) - timer_time;  \
+    BM_TIMER_T tmp = (ERTS_MONOTONIC_TO_NSEC(erts_os_monotonic_time()) - system_clock) - timer_time;  \
     t##_time += (tmp > 0 ? tmp : 0);                                 \
 } while(0)
 
@@ -196,7 +162,6 @@ extern BM_TIMER_T start_time;
 } while(0)
 
 extern BM_TIMER_T system_clock;
-#endif /* USE_PERFCTR */
 
 extern BM_TIMER_T timer_time;
 extern BM_TIMER_T system_time;
diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c
index b43137597e..2b782f4484 100644
--- a/erts/emulator/beam/bif.c
+++ b/erts/emulator/beam/bif.c
@@ -28,7 +28,9 @@
 #include "global.h"
 #include "erl_process.h"
 #include "error.h"
+#define ERL_WANT_HIPE_BIF_WRAPPER__
 #include "bif.h"
+#undef ERL_WANT_HIPE_BIF_WRAPPER__
 #include "big.h"
 #include "dist.h"
 #include "erl_version.h"
@@ -40,16 +42,23 @@
 #define ERTS_PTAB_WANT_BIF_IMPL__
 #include "erl_ptab.h"
 #include "erl_bits.h"
+#include "erl_bif_unique.h"
 
-static Export* flush_monitor_message_trap = NULL;
+Export *erts_await_result;
+static Export* flush_monitor_messages_trap = NULL;
 static Export* set_cpu_topology_trap = NULL;
 static Export* await_proc_exit_trap = NULL;
 static Export* await_port_send_result_trap = NULL;
 Export* erts_format_cpu_topology_trap = NULL;
+static Export dsend_continue_trap_export;
+Export *erts_convert_time_unit_trap = NULL;
 
 static Export *await_sched_wall_time_mod_trap;
 static erts_smp_atomic32_t sched_wall_time;
 
+static erts_smp_mtx_t ports_snapshot_mtx;
+erts_smp_atomic_t erts_dead_ports_ptr; /* To store dying ports during snapshot */
+
 #define DECL_AM(S) Eterm AM_ ## S = am_atom_put(#S, sizeof(#S) - 1)
 
 /*
@@ -391,7 +400,7 @@ remote_demonitor(Process *c_p, DistEntry *dep, Eterm ref, Eterm to)
     return res;
 }
 
-static int demonitor(Process *c_p, Eterm ref)
+static int demonitor(Process *c_p, Eterm ref, Eterm *multip)
 {
    ErtsMonitor *mon = NULL;  /* The monitor entry to delete */
    Process  *rp;    /* Local target process */
@@ -415,65 +424,73 @@ static int demonitor(Process *c_p, Eterm ref)
        goto done;
    }
 
-   if (mon->type != MON_ORIGIN) {
-       res = ERTS_DEMONITOR_BADARG;
-       goto done;
-   }
-   to = mon->pid;
-
-   if (is_atom(to)) {
-       /* Monitoring a name at node to */
-       ASSERT(is_node_name_atom(to));
-       dep = erts_sysname_to_connected_dist_entry(to);
-       ASSERT(dep != erts_this_dist_entry);
-       if (dep)
-	   deref_de = 1;
-   } else {
-       ASSERT(is_pid(to));
-       dep = pid_dist_entry(to);
-   }
-   if (dep != erts_this_dist_entry) {
-       res = remote_demonitor(c_p, dep, ref, to);
-       /* remote_demonitor() unlocks link lock on c_p */
-       unlock_link = 0;
-   }
-   else { /* Local monitor */
-       if (deref_de) {
-	   deref_de = 0;
-	   erts_deref_dist_entry(dep);
+   switch (mon->type) {
+   case MON_TIME_OFFSET:
+       *multip = am_true;
+       erts_demonitor_time_offset(ref);
+       res = ERTS_DEMONITOR_TRUE;
+       break;
+   case MON_ORIGIN:
+       to = mon->pid;
+       *multip = am_false;
+       if (is_atom(to)) {
+	   /* Monitoring a name at node to */
+	   ASSERT(is_node_name_atom(to));
+	   dep = erts_sysname_to_connected_dist_entry(to);
+	   ASSERT(dep != erts_this_dist_entry);
+	   if (dep)
+	       deref_de = 1;
+       } else {
+	   ASSERT(is_pid(to));
+	   dep = pid_dist_entry(to);
        }
-       dep = NULL;
-       rp = erts_pid2proc_opt(c_p,
-			      ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_LINK,
-			      to,
-			      ERTS_PROC_LOCK_LINK,
-			      ERTS_P2P_FLG_ALLOW_OTHER_X);
-       mon = erts_remove_monitor(&ERTS_P_MONITORS(c_p), ref);
+       if (dep != erts_this_dist_entry) {
+	   res = remote_demonitor(c_p, dep, ref, to);
+	   /* remote_demonitor() unlocks link lock on c_p */
+	   unlock_link = 0;
+       }
+       else { /* Local monitor */
+	   if (deref_de) {
+	       deref_de = 0;
+	       erts_deref_dist_entry(dep);
+	   }
+	   dep = NULL;
+	   rp = erts_pid2proc_opt(c_p,
+				  ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_LINK,
+				  to,
+				  ERTS_PROC_LOCK_LINK,
+				  ERTS_P2P_FLG_ALLOW_OTHER_X);
+	   mon = erts_remove_monitor(&ERTS_P_MONITORS(c_p), ref);
 #ifndef ERTS_SMP
-       ASSERT(mon);
+	   ASSERT(mon);
 #else
-       if (!mon)
-	   res = ERTS_DEMONITOR_FALSE;
-       else
+	   if (!mon)
+	       res = ERTS_DEMONITOR_FALSE;
+	   else
 #endif
-       {
-	   res = ERTS_DEMONITOR_TRUE;
-	   erts_destroy_monitor(mon);
-       }
-       if (rp) {
-	   ErtsMonitor *rmon;
-	   rmon = erts_remove_monitor(&ERTS_P_MONITORS(rp), ref);
-	   if (rp != c_p)
-	       erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
-	   if (rmon != NULL)
-	       erts_destroy_monitor(rmon);
-       }
-       else {
-	   ERTS_SMP_ASSERT_IS_NOT_EXITING(c_p);
-       }
+	   {
+	       res = ERTS_DEMONITOR_TRUE;
+	       erts_destroy_monitor(mon);
+	   }
+	   if (rp) {
+	       ErtsMonitor *rmon;
+	       rmon = erts_remove_monitor(&ERTS_P_MONITORS(rp), ref);
+	       if (rp != c_p)
+		   erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
+	       if (rmon != NULL)
+		   erts_destroy_monitor(rmon);
+	   }
+	   else {
+	       ERTS_SMP_ASSERT_IS_NOT_EXITING(c_p);
+	   }
 
+       }
+       break;
+   default:
+       res = ERTS_DEMONITOR_BADARG;
+       *multip = am_false;
+       break;
    }
-
  done:
 
    if (unlock_link)
@@ -490,7 +507,8 @@ static int demonitor(Process *c_p, Eterm ref)
 
 BIF_RETTYPE demonitor_1(BIF_ALIST_1)
 {
-    switch (demonitor(BIF_P, BIF_ARG_1)) {
+    Eterm multi;
+    switch (demonitor(BIF_P, BIF_ARG_1, &multi)) {
     case ERTS_DEMONITOR_FALSE:
     case ERTS_DEMONITOR_TRUE:
 	BIF_RET(am_true);
@@ -508,6 +526,7 @@ BIF_RETTYPE demonitor_1(BIF_ALIST_1)
 BIF_RETTYPE demonitor_2(BIF_ALIST_2)
 {
     Eterm res = am_true;
+    Eterm multi = am_false;
     int info = 0;
     int flush = 0;
     Eterm list = BIF_ARG_2;
@@ -530,13 +549,18 @@ BIF_RETTYPE demonitor_2(BIF_ALIST_2)
     if (is_not_nil(list))
 	goto badarg;
 
-    switch (demonitor(BIF_P, BIF_ARG_1)) {
+    switch (demonitor(BIF_P, BIF_ARG_1, &multi)) {
     case ERTS_DEMONITOR_FALSE:
 	if (info)
 	    res = am_false;
-	if (flush)
-	    BIF_TRAP2(flush_monitor_message_trap, BIF_P, BIF_ARG_1, res);
+	if (flush) {
+	flush_messages:
+	    BIF_TRAP3(flush_monitor_messages_trap, BIF_P,
+		      BIF_ARG_1, multi, res);
+	}
     case ERTS_DEMONITOR_TRUE:
+	if (multi == am_true && flush)
+	    goto flush_messages;
 	BIF_RET(res);
     case ERTS_DEMONITOR_YIELD_TRUE:
 	ERTS_BIF_YIELD_RETURN(BIF_P, am_true);
@@ -587,22 +611,16 @@ erts_queue_monitor_message(Process *p,
     ref_copy    = copy_struct(ref, ref_size, &hp, ohp);
 
     tup = TUPLE5(hp, am_DOWN, ref_copy, type, item_copy, reason_copy);
-    erts_queue_message(p, p_locksp, bp, tup, NIL
-#ifdef USE_VM_PROBES
-		       , NIL
-#endif
-		       );
+    erts_queue_message(p, p_locksp, bp, tup, NIL);
 }
 
 static BIF_RETTYPE
-local_pid_monitor(Process *p, Eterm target)
+local_pid_monitor(Process *p, Eterm target, Eterm mon_ref, int bool)
 {
     BIF_RETTYPE ret;
-    Eterm mon_ref;
     Process *rp;
     ErtsProcLocks p_locks = ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_LINK;
 
-    mon_ref = erts_make_ref(p);
     ERTS_BIF_PREP_RET(ret, mon_ref);
     if (target == p->common.id) {
 	return ret;
@@ -615,12 +633,18 @@ local_pid_monitor(Process *p, Eterm target)
     if (!rp) {
 	erts_smp_proc_unlock(p, ERTS_PROC_LOCK_LINK);
 	p_locks &= ~ERTS_PROC_LOCK_LINK;
-	erts_queue_monitor_message(p, &p_locks,
-				   mon_ref, am_process, target, am_noproc);
+	if (bool)
+	    ret = am_false;
+	else
+	    erts_queue_monitor_message(p, &p_locks,
+				       mon_ref, am_process, target, am_noproc);
     }
     else {
 	ASSERT(rp != p);
 
+	if (bool)
+	    ret = am_true;
+
 	erts_add_monitor(&ERTS_P_MONITORS(p), MON_ORIGIN, mon_ref, target, NIL);
 	erts_add_monitor(&ERTS_P_MONITORS(rp), MON_TARGET, mon_ref, p->common.id, NIL);
 
@@ -744,13 +768,28 @@ BIF_RETTYPE monitor_2(BIF_ALIST_2)
     int deref_de = 0;
 
     /* Only process monitors are implemented */
-    if (BIF_ARG_1 != am_process) {
+    switch (BIF_ARG_1) {
+    case am_time_offset: {
+	Eterm ref;
+	if (BIF_ARG_2 != am_clock_service)
+	    goto error;
+	ref = erts_make_ref(BIF_P);
+	erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_LINK);
+	erts_add_monitor(&ERTS_P_MONITORS(BIF_P), MON_TIME_OFFSET,
+			 ref, am_clock_service, NIL);
+	erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_LINK);
+	erts_monitor_time_offset(BIF_P->common.id, ref);
+	BIF_RET(ref);
+    }
+    case am_process:
+	break;
+    default:
 	goto error;
     }
 
     if (is_internal_pid(target)) {
     local_pid:
-	ret = local_pid_monitor(BIF_P, target);
+	ret = local_pid_monitor(BIF_P, target, erts_make_ref(BIF_P), 0);
     } else if (is_external_pid(target)) {
 	dep = external_pid_dist_entry(target);
 	if (dep == erts_this_dist_entry)
@@ -793,7 +832,6 @@ BIF_RETTYPE monitor_2(BIF_ALIST_2)
     return ret;
 }
 
-
 /**********************************************************************/
 /* this is a combination of the spawn and link BIFs */
 
@@ -1777,6 +1815,8 @@ BIF_RETTYPE whereis_1(BIF_ALIST_1)
  * erlang:'!'/2
  */
 
+HIPE_WRAPPER_BIF_DISABLE_GC(ebif_bang, 2)
+
 BIF_RETTYPE
 ebif_bang_2(BIF_ALIST_2)
 {
@@ -1795,34 +1835,36 @@ ebif_bang_2(BIF_ALIST_2)
 #define SEND_USER_ERROR		(-5)
 #define SEND_INTERNAL_ERROR	(-6)
 #define SEND_AWAIT_RESULT	(-7)
+#define SEND_YIELD_CONTINUE     (-8)
 
-Sint do_send(Process *p, Eterm to, Eterm msg, int suspend, Eterm *refp);
+
+Sint do_send(Process *p, Eterm to, Eterm msg, Eterm *refp, ErtsSendContext*);
 
 static Sint remote_send(Process *p, DistEntry *dep,
-			Eterm to, Eterm full_to, Eterm msg, int suspend)
+			Eterm to, Eterm full_to, Eterm msg,
+			ErtsSendContext* ctx)
 {
     Sint res;
     int code;
-    ErtsDSigData dsd;
 
     ASSERT(is_atom(to) || is_external_pid(to));
 
-    code = erts_dsig_prepare(&dsd, dep, p, ERTS_DSP_NO_LOCK, !suspend);
+    code = erts_dsig_prepare(&ctx->dsd, dep, p, ERTS_DSP_NO_LOCK, !ctx->suspend);
     switch (code) {
     case ERTS_DSIG_PREP_NOT_ALIVE:
     case ERTS_DSIG_PREP_NOT_CONNECTED:
 	res = SEND_TRAP;
 	break;
     case ERTS_DSIG_PREP_WOULD_SUSPEND:
-	ASSERT(!suspend);
+	ASSERT(!ctx->suspend);
 	res = SEND_YIELD;
 	break;
     case ERTS_DSIG_PREP_CONNECTED: {
 
 	if (is_atom(to))
-	    code = erts_dsig_send_reg_msg(&dsd, to, msg);
+	    code = erts_dsig_send_reg_msg(to, msg, ctx);
 	else
-	    code = erts_dsig_send_msg(&dsd, to, msg);
+	    code = erts_dsig_send_msg(to, msg, ctx);
 	/*
 	 * Note that reductions have been bumped on calling
 	 * process by erts_dsig_send_reg_msg() or
@@ -1830,6 +1872,8 @@ static Sint remote_send(Process *p, DistEntry *dep,
 	 */
 	if (code == ERTS_DSIG_SEND_YIELD)
 	    res = SEND_YIELD_RETURN;
+	else if (code == ERTS_DSIG_SEND_CONTINUE)
+	    res = SEND_YIELD_CONTINUE;
 	else
 	    res = 0;
 	break;
@@ -1850,7 +1894,8 @@ static Sint remote_send(Process *p, DistEntry *dep,
 }
 
 Sint
-do_send(Process *p, Eterm to, Eterm msg, int suspend, Eterm *refp) {
+do_send(Process *p, Eterm to, Eterm msg, Eterm *refp, ErtsSendContext* ctx)
+{
     Eterm portid;
     Port *pt;
     Process* rp;
@@ -1883,7 +1928,7 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend, Eterm *refp) {
 #endif
 	    return 0;
 	}
-	return remote_send(p, dep, to, to, msg, suspend);
+	return remote_send(p, dep, to, to, msg, ctx);
     } else if (is_atom(to)) {
 	Eterm id = erts_whereis_name_to_id(p, to);
 
@@ -1940,7 +1985,7 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend, Eterm *refp) {
 	ret_val = 0;
         
 	if (pt) {
-	    int ps_flags = suspend ? 0 : ERTS_PORT_SIG_FLG_NOSUSPEND;
+	    int ps_flags = ctx->suspend ? 0 : ERTS_PORT_SIG_FLG_NOSUSPEND;
 	    *refp = NIL;
 
 	    switch (erts_port_command(p, ps_flags, pt, msg, refp)) {
@@ -1949,12 +1994,12 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend, Eterm *refp) {
 		return SEND_USER_ERROR;
 	    case ERTS_PORT_OP_BUSY:
 		/* Nothing has been sent */
-		if (suspend)
+		if (ctx->suspend)
 		    erts_suspend(p, ERTS_PROC_LOCK_MAIN, pt);
 		return SEND_YIELD;
 	    case ERTS_PORT_OP_BUSY_SCHEDULED:
 		/* Message was sent */
-		if (suspend) {
+		if (ctx->suspend) {
 		    erts_suspend(p, ERTS_PROC_LOCK_MAIN, pt);
 		    ret_val = SEND_YIELD_RETURN;
 		    break;
@@ -2034,9 +2079,14 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend, Eterm *refp) {
 	    return 0;
 	}
 
-	ret = remote_send(p, dep, tp[1], to, msg, suspend);
-	if (dep)
-	    erts_deref_dist_entry(dep);
+	ret = remote_send(p, dep, tp[1], to, msg, ctx);
+	if (ret != SEND_YIELD_CONTINUE) {
+	    if (dep) {
+		erts_deref_dist_entry(dep);
+	    }
+	} else {
+	    ctx->dep_to_deref = dep;
+	}
 	return ret;
     } else {
 	if (IS_TRACED(p)) /* XXX Is this really neccessary ??? */
@@ -2067,9 +2117,11 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend, Eterm *refp) {
     }
 }
 
+HIPE_WRAPPER_BIF_DISABLE_GC(send, 3)
 
 BIF_RETTYPE send_3(BIF_ALIST_3)
 {
+    BIF_RETTYPE retval;
     Eterm ref;
     Process *p = BIF_P;
     Eterm to = BIF_ARG_1;
@@ -2077,34 +2129,44 @@ BIF_RETTYPE send_3(BIF_ALIST_3)
     Eterm opts = BIF_ARG_3;
 
     int connect = !0;
-    int suspend = !0;
     Eterm l = opts;
     Sint result;
-    
+    DeclareTypedTmpHeap(ErtsSendContext, ctx, BIF_P);
+    UseTmpHeap(sizeof(ErtsSendContext)/sizeof(Eterm), BIF_P);
+
+    ctx->suspend = !0;
+    ctx->dep_to_deref = NULL;
+    ctx->return_term = am_ok;
+    ctx->dss.reds = (Sint) (ERTS_BIF_REDS_LEFT(p) * TERM_TO_BINARY_LOOP_FACTOR);
+    ctx->dss.phase = ERTS_DSIG_SEND_PHASE_INIT;
+
     while (is_list(l)) {
 	if (CAR(list_val(l)) == am_noconnect) {
 	    connect = 0;
 	} else if (CAR(list_val(l)) == am_nosuspend) {
-	    suspend = 0;
+	    ctx->suspend = 0;
 	} else {
-	    BIF_ERROR(p, BADARG);
+	    ERTS_BIF_PREP_ERROR(retval, p, BADARG);
+	    goto done;
 	}
 	l = CDR(list_val(l));
     }
     if(!is_nil(l)) {
-	BIF_ERROR(p, BADARG);
+	ERTS_BIF_PREP_ERROR(retval, p, BADARG);
+	goto done;
     }
 
 #ifdef DEBUG
     ref = NIL;
 #endif
 
-    result = do_send(p, to, msg, suspend, &ref);
+    result = do_send(p, to, msg, &ref, ctx);
     if (result > 0) {
 	ERTS_VBUMP_REDS(p, result);
 	if (ERTS_IS_PROC_OUT_OF_REDS(p))
 	    goto yield_return;
-	BIF_RET(am_ok);
+	ERTS_BIF_PREP_RET(retval, am_ok);
+	goto done;
     }
 
     switch (result) {
@@ -2112,68 +2174,127 @@ BIF_RETTYPE send_3(BIF_ALIST_3)
 	/* May need to yield even though we do not bump reds here... */
 	if (ERTS_IS_PROC_OUT_OF_REDS(p))
 	    goto yield_return;
-	BIF_RET(am_ok); 
+	ERTS_BIF_PREP_RET(retval, am_ok);
 	break;
     case SEND_TRAP:
 	if (connect) {
-	    BIF_TRAP3(dsend3_trap, p, to, msg, opts); 
+	    ERTS_BIF_PREP_TRAP3(retval, dsend3_trap, p, to, msg, opts);
 	} else {
-	    BIF_RET(am_noconnect);
+	    ERTS_BIF_PREP_RET(retval, am_noconnect);
 	}
 	break;
     case SEND_YIELD:
-	if (suspend) {
-	    ERTS_BIF_YIELD3(bif_export[BIF_send_3], p, to, msg, opts);
+	if (ctx->suspend) {
+	    ERTS_BIF_PREP_YIELD3(retval,
+				 bif_export[BIF_send_3], p, to, msg, opts);
 	} else {
-	    BIF_RET(am_nosuspend);
+	    ERTS_BIF_PREP_RET(retval, am_nosuspend);
 	}
 	break;
     case SEND_YIELD_RETURN:
-	if (!suspend)
-	    BIF_RET(am_nosuspend);
+	if (!ctx->suspend) {
+	    ERTS_BIF_PREP_RET(retval, am_nosuspend);
+	    break;
+	}
     yield_return:
-	ERTS_BIF_YIELD_RETURN(p, am_ok);
+	ERTS_BIF_PREP_YIELD_RETURN(retval, p, am_ok);
+        break;
     case SEND_AWAIT_RESULT:
 	ASSERT(is_internal_ref(ref));
-	BIF_TRAP3(await_port_send_result_trap, p, ref, am_nosuspend, am_ok);
+	ERTS_BIF_PREP_TRAP3(retval, await_port_send_result_trap, p, ref, am_nosuspend, am_ok);
+	break;
     case SEND_BADARG:
-	BIF_ERROR(p, BADARG); 
+	ERTS_BIF_PREP_ERROR(retval, p, BADARG);
 	break;
     case SEND_USER_ERROR:
-	BIF_ERROR(p, EXC_ERROR); 
+	ERTS_BIF_PREP_ERROR(retval, p, EXC_ERROR);
 	break;
     case SEND_INTERNAL_ERROR:
-	BIF_ERROR(p, EXC_INTERNAL_ERROR);
+	ERTS_BIF_PREP_ERROR(retval, p, EXC_INTERNAL_ERROR);
+	break;
+    case SEND_YIELD_CONTINUE:
+	BUMP_ALL_REDS(p);
+	erts_set_gc_state(p, 0);
+	ERTS_BIF_PREP_TRAP1(retval, &dsend_continue_trap_export, p,
+			    erts_dsend_export_trap_context(p, ctx));
 	break;
     default:
-	ASSERT(! "Illegal send result"); 
+	erl_exit(ERTS_ABORT_EXIT, "send_3 invalid result %d\n", (int)result);
 	break;
     }
-    ASSERT(! "Can not arrive here");
-    BIF_ERROR(p, BADARG);
+
+done:
+    UnUseTmpHeap(sizeof(ErtsSendContext)/sizeof(Eterm), BIF_P);
+    return retval;
 }
 
+HIPE_WRAPPER_BIF_DISABLE_GC(send, 2)
+
 BIF_RETTYPE send_2(BIF_ALIST_2)
 {
     return erl_send(BIF_P, BIF_ARG_1, BIF_ARG_2);
 }
 
+static BIF_RETTYPE dsend_continue_trap_1(BIF_ALIST_1)
+{
+    Binary* bin = ((ProcBin*) binary_val(BIF_ARG_1))->val;
+    ErtsSendContext* ctx = (ErtsSendContext*) ERTS_MAGIC_BIN_DATA(bin);
+    Sint initial_reds = (Sint) (ERTS_BIF_REDS_LEFT(BIF_P) * TERM_TO_BINARY_LOOP_FACTOR);
+    int result;
+
+    ASSERT(ERTS_MAGIC_BIN_DESTRUCTOR(bin) == erts_dsend_context_dtor);
+
+    ctx->dss.reds = initial_reds;
+    result = erts_dsig_send(&ctx->dsd, &ctx->dss);
+
+    switch (result) {
+    case ERTS_DSIG_SEND_OK:
+	erts_set_gc_state(BIF_P, 1);
+	BIF_RET(ctx->return_term);
+	break;
+    case ERTS_DSIG_SEND_YIELD: /*SEND_YIELD_RETURN*/
+	erts_set_gc_state(BIF_P, 1);
+	if (!ctx->suspend)
+	    BIF_RET(am_nosuspend);
+	ERTS_BIF_YIELD_RETURN(BIF_P, ctx->return_term);
+
+    case ERTS_DSIG_SEND_CONTINUE: { /*SEND_YIELD_CONTINUE*/
+	BUMP_ALL_REDS(BIF_P);
+	BIF_TRAP1(&dsend_continue_trap_export, BIF_P, BIF_ARG_1);
+    }
+    default:
+	erl_exit(ERTS_ABORT_EXIT, "dsend_continue_trap invalid result %d\n", (int)result);
+	break;
+    }
+    ASSERT(! "Can not arrive here");
+    BIF_ERROR(BIF_P, BADARG);
+}
+
 Eterm erl_send(Process *p, Eterm to, Eterm msg)
 {
+    Eterm retval;
     Eterm ref;
     Sint result;
+    DeclareTypedTmpHeap(ErtsSendContext, ctx, p);
+    UseTmpHeap(sizeof(ErtsSendContext)/sizeof(Eterm), p);
 
 #ifdef DEBUG
     ref = NIL;
 #endif
+    ctx->suspend = !0;
+    ctx->dep_to_deref = NULL;
+    ctx->return_term = msg;
+    ctx->dss.reds = (Sint) (ERTS_BIF_REDS_LEFT(p) * TERM_TO_BINARY_LOOP_FACTOR);
+    ctx->dss.phase = ERTS_DSIG_SEND_PHASE_INIT;
 
-    result = do_send(p, to, msg, !0, &ref);
+    result = do_send(p, to, msg, &ref, ctx);
     
     if (result > 0) {
 	ERTS_VBUMP_REDS(p, result);
 	if (ERTS_IS_PROC_OUT_OF_REDS(p))
 	    goto yield_return;
-	BIF_RET(msg);
+	ERTS_BIF_PREP_RET(retval, msg);
+	goto done;
     }
 
     switch (result) {
@@ -2181,35 +2302,46 @@ Eterm erl_send(Process *p, Eterm to, Eterm msg)
 	/* May need to yield even though we do not bump reds here... */
 	if (ERTS_IS_PROC_OUT_OF_REDS(p))
 	    goto yield_return;
-	BIF_RET(msg); 
+	ERTS_BIF_PREP_RET(retval, msg);
 	break;
     case SEND_TRAP:
-	BIF_TRAP2(dsend2_trap, p, to, msg); 
+	ERTS_BIF_PREP_TRAP2(retval, dsend2_trap, p, to, msg);
 	break;
     case SEND_YIELD:
-	ERTS_BIF_YIELD2(bif_export[BIF_send_2], p, to, msg);
+	ERTS_BIF_PREP_YIELD2(retval, bif_export[BIF_send_2], p, to, msg);
 	break;
     case SEND_YIELD_RETURN:
     yield_return:
-	ERTS_BIF_YIELD_RETURN(p, msg);
+	ERTS_BIF_PREP_YIELD_RETURN(retval, p, msg);
+        break;
     case SEND_AWAIT_RESULT:
 	ASSERT(is_internal_ref(ref));
-	BIF_TRAP3(await_port_send_result_trap, p, ref, msg, msg);
+	ERTS_BIF_PREP_TRAP3(retval,
+			    await_port_send_result_trap, p, ref, msg, msg);
+	break;
     case SEND_BADARG:
-	BIF_ERROR(p, BADARG); 
+	ERTS_BIF_PREP_ERROR(retval, p, BADARG);
 	break;
     case SEND_USER_ERROR:
-	BIF_ERROR(p, EXC_ERROR); 
+	ERTS_BIF_PREP_ERROR(retval, p, EXC_ERROR);
 	break;
     case SEND_INTERNAL_ERROR:
-	BIF_ERROR(p, EXC_INTERNAL_ERROR);
+	ERTS_BIF_PREP_ERROR(retval, p, EXC_INTERNAL_ERROR);
+	break;
+    case SEND_YIELD_CONTINUE:
+	BUMP_ALL_REDS(p);
+	erts_set_gc_state(p, 0);
+	ERTS_BIF_PREP_TRAP1(retval, &dsend_continue_trap_export, p,
+			    erts_dsend_export_trap_context(p, ctx));
 	break;
     default:
-	ASSERT(! "Illegal send result"); 
+	erl_exit(ERTS_ABORT_EXIT, "invalid send result %d\n", (int)result);
 	break;
     }
-    ASSERT(! "Can not arrive here");
-    BIF_ERROR(p, BADARG);
+
+done:
+    UnUseTmpHeap(sizeof(ErtsSendContext)/sizeof(Eterm), p);
+    return retval;
 }
 
 /**********************************************************************/
@@ -3448,91 +3580,6 @@ BIF_RETTYPE self_0(BIF_ALIST_0)
 
 /**********************************************************************/
 
-/*
-   New representation of refs in R9, see erl_term.h
-
-   In the first data word, only the usual 18 bits are used. Ordinarily,
-   in "long refs" all words are used (in other words, practically never
-   wrap around), but for compatibility with older nodes, "short refs"
-   exist. Short refs come into being by being converted from the old
-   external format for refs (tag REFERENCE_EXT). Short refs are
-   converted back to the old external format.
-
-   When converting a long ref to the external format in the case of
-   preparing for sending to an older node, the ref is truncated by only
-   using the first word (with 18 significant bits), and using the old tag
-   REFERENCE_EXT.
-
-   When comparing refs or different size, only the parts up to the length
-   of the shorter operand are used. This has the desirable effect that a
-   long ref sent to an old node and back will be treated as equal to
-   the original, although some of the bits have been lost.
-
-   The hash value for a ref always considers only the first word, since
-   in the above scenario, the original and the copy should have the same
-   hash value.
-*/
-
-static Uint32 reference0; /* Initialized in erts_init_bif */
-static Uint32 reference1;
-static Uint32 reference2;
-static erts_smp_spinlock_t make_ref_lock;
-static erts_smp_mtx_t ports_snapshot_mtx;
-erts_smp_atomic_t erts_dead_ports_ptr; /* To store dying ports during snapshot */
-
-void
-erts_make_ref_in_array(Uint32 ref[ERTS_MAX_REF_NUMBERS])
-{
-    erts_smp_spin_lock(&make_ref_lock);
-
-    reference0++;
-    if (reference0 >= MAX_REFERENCE) {
-	reference0 = 0;
-	reference1++;
-	if (reference1 == 0) {
-	    reference2++;
-	}
-    }
-
-    ref[0] = reference0;
-    ref[1] = reference1;
-    ref[2] = reference2;
-
-    erts_smp_spin_unlock(&make_ref_lock);
-}
-
-Eterm erts_make_ref_in_buffer(Eterm buffer[REF_THING_SIZE])
-{
-    Eterm* hp = buffer;
-    Uint32 ref[ERTS_MAX_REF_NUMBERS];
-
-    erts_make_ref_in_array(ref);
-    write_ref_thing(hp, ref[0], ref[1], ref[2]);
-    return make_internal_ref(hp);
-}
-
-Eterm erts_make_ref(Process *p)
-{
-    Eterm* hp;
-    Uint32 ref[ERTS_MAX_REF_NUMBERS];
-
-    ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN & erts_proc_lc_my_proc_locks(p));
-
-    hp = HAlloc(p, REF_THING_SIZE);
-
-    erts_make_ref_in_array(ref);
-    write_ref_thing(hp, ref[0], ref[1], ref[2]);
-
-    return make_internal_ref(hp);
-}
-
-BIF_RETTYPE make_ref_0(BIF_ALIST_0)
-{
-    return erts_make_ref(BIF_P);
-}
-
-/**********************************************************************/
-
 /* return the time of day */
 
 BIF_RETTYPE time_0(BIF_ALIST_0)
@@ -3998,16 +4045,19 @@ BIF_RETTYPE halt_2(BIF_ALIST_2)
 
 BIF_RETTYPE function_exported_3(BIF_ALIST_3)
 {
+    int arity;
     if (is_not_atom(BIF_ARG_1) ||
 	is_not_atom(BIF_ARG_2) || 
 	is_not_small(BIF_ARG_3)) {
 	BIF_ERROR(BIF_P, BADARG);
     }
-    if (erts_find_function(BIF_ARG_1, BIF_ARG_2, signed_val(BIF_ARG_3),
-			   erts_active_code_ix()) == NULL) {
-	BIF_RET(am_false);
+    arity = signed_val(BIF_ARG_3);
+    if (erts_find_function(BIF_ARG_1, BIF_ARG_2, arity,
+			   erts_active_code_ix()) != NULL ||
+	erts_is_builtin(BIF_ARG_1, BIF_ARG_2, arity)) {
+	BIF_RET(am_true);
     }
-    BIF_RET(am_true);
+    BIF_RET(am_false);
 }
 
 /**********************************************************************/    
@@ -4510,6 +4560,28 @@ BIF_RETTYPE system_flag_2(BIF_ALIST_2)
 	    break;
 	}
 #endif
+    } else if (BIF_ARG_1 == am_time_offset
+	       && ERTS_IS_ATOM_STR("finalize", BIF_ARG_2)) {
+	ErtsTimeOffsetState res;
+	erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
+	res = erts_finalize_time_offset();
+        erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
+	switch (res) {
+	case ERTS_TIME_OFFSET_PRELIMINARY: {
+	    DECL_AM(preliminary);
+	    BIF_RET(AM_preliminary);
+	}
+	case ERTS_TIME_OFFSET_FINAL: {
+	    DECL_AM(final);
+	    BIF_RET(AM_final);
+	}
+	case ERTS_TIME_OFFSET_VOLATILE: {
+	    DECL_AM(volatile);
+	    BIF_RET(AM_volatile);
+	}
+	default:
+	    ERTS_INTERNAL_ERROR("Unknown state");
+	}
     } else if (ERTS_IS_ATOM_STR("scheduling_statistics", BIF_ARG_1)) {
 	int what;
 	if (ERTS_IS_ATOM_STR("disable", BIF_ARG_2))
@@ -4797,11 +4869,6 @@ void erts_init_trap_export(Export* ep, Eterm m, Eterm f, Uint a,
 
 void erts_init_bif(void)
 {
-    reference0 = 0;
-    reference1 = 0;
-    reference2 = 0;
-
-    erts_smp_spinlock_init(&make_ref_lock, "make_ref");
     erts_smp_mtx_init(&ports_snapshot_mtx, "ports_snapshot");
     erts_smp_atomic_init_nob(&erts_dead_ports_ptr, (erts_aint_t) NULL);
 
@@ -4818,9 +4885,21 @@ void erts_init_bif(void)
 #endif
 		     , &bif_return_trap);
 
-    flush_monitor_message_trap = erts_export_put(am_erlang,
-						 am_flush_monitor_message,
-						 2);
+    erts_await_result = erts_export_put(am_erts_internal,
+					am_await_result,
+					1);
+
+    erts_init_trap_export(&dsend_continue_trap_export,
+			  am_erts_internal, am_dsend_continue_trap, 1,
+			  dsend_continue_trap_1);
+
+    flush_monitor_messages_trap = erts_export_put(am_erts_internal,
+						  am_flush_monitor_messages,
+						  3);
+
+    erts_convert_time_unit_trap = erts_export_put(am_erlang,
+						  am_convert_time_unit,
+						  3);
 
     set_cpu_topology_trap = erts_export_put(am_erlang,
 					    am_set_cpu_topology,
diff --git a/erts/emulator/beam/bif.h b/erts/emulator/beam/bif.h
index 72c55ccb55..b877711544 100644
--- a/erts/emulator/beam/bif.h
+++ b/erts/emulator/beam/bif.h
@@ -20,7 +20,9 @@
 #ifndef __BIF_H__
 #define __BIF_H__
 
+extern Export *erts_await_result;
 extern Export* erts_format_cpu_topology_trap;
+extern Export *erts_convert_time_unit_trap;
 
 #define BIF_RETTYPE Eterm
 
@@ -30,10 +32,12 @@ extern Export* erts_format_cpu_topology_trap;
 #define BIF_ALIST_1 Process* A__p, Eterm* BIF__ARGS
 #define BIF_ALIST_2 Process* A__p, Eterm* BIF__ARGS
 #define BIF_ALIST_3 Process* A__p, Eterm* BIF__ARGS
+#define BIF_ALIST_4 Process* A__p, Eterm* BIF__ARGS
 
 #define BIF_ARG_1  (BIF__ARGS[0])
 #define BIF_ARG_2  (BIF__ARGS[1])
 #define BIF_ARG_3  (BIF__ARGS[2])
+#define BIF_ARG_4  (BIF__ARGS[3])
 
 #define ERTS_IS_PROC_OUT_OF_REDS(p)		\
     ((p)->fcalls > 0				\
@@ -465,6 +469,8 @@ erts_bif_prep_await_proc_exit_apply_trap(Process *c_p,
 					 Eterm args[],
 					 int nargs);
 
+#ifdef ERL_WANT_HIPE_BIF_WRAPPER__
+
 #ifndef HIPE
 
 #define HIPE_WRAPPER_BIF_DISABLE_GC(BIF_NAME, ARITY)
@@ -509,6 +515,7 @@ BIF_RETTYPE hipe_wrapper_ ## BIF_NAME ## _ ## ARITY (Process* c_p,	\
 
 #endif
 
+#endif /* ERL_WANT_HIPE_BIF_WRAPPER__ */
 
 #include "erl_bif_table.h"
 
diff --git a/erts/emulator/beam/bif.tab b/erts/emulator/beam/bif.tab
index e68b8e6274..eadba3eaff 100644
--- a/erts/emulator/beam/bif.tab
+++ b/erts/emulator/beam/bif.tab
@@ -92,6 +92,8 @@ bif erlang:loaded/0
 bif erlang:localtime/0
 bif erlang:localtime_to_universaltime/2
 bif erlang:make_ref/0
+bif erlang:unique_integer/0
+bif erlang:unique_integer/1
 bif erlang:md5/1
 bif erlang:md5_init/0
 bif erlang:md5_update/2
@@ -104,6 +106,13 @@ ubif erlang:node/1
 ubif erlang:node/0
 bif erlang:nodes/1
 bif erlang:now/0
+bif erlang:monotonic_time/0
+bif erlang:monotonic_time/1
+bif erlang:system_time/0
+bif erlang:system_time/1
+bif erlang:time_offset/0
+bif erlang:time_offset/1
+bif erlang:timestamp/0
 
 bif erlang:open_port/2
 
@@ -157,6 +166,12 @@ bif erts_internal:request_system_task/3
 bif erts_internal:check_process_code/2
 
 bif erts_internal:map_to_tuple_keys/1
+bif erts_internal:map_type/1
+bif erts_internal:map_hashmap_children/1
+
+bif erts_internal:time_unit/0
+
+bif erts_internal:is_system_process/1
 
 # inet_db support
 bif erlang:port_set_data/2
@@ -194,15 +209,20 @@ bif math:erf/1
 bif math:erfc/1
 bif math:exp/1
 bif math:log/1
+bif math:log2/1
 bif math:log10/1
 bif math:sqrt/1
 bif math:atan2/2
 bif math:pow/2
 
 bif erlang:start_timer/3
+bif erlang:start_timer/4
 bif erlang:send_after/3
+bif erlang:send_after/4
 bif erlang:cancel_timer/1
+bif erlang:cancel_timer/2
 bif erlang:read_timer/1
+bif erlang:read_timer/2
 
 bif erlang:make_tuple/2
 bif erlang:append_element/2
@@ -347,6 +367,8 @@ bif os:getenv/0
 bif os:getenv/1
 bif os:getpid/0
 bif os:timestamp/0
+bif os:system_time/0
+bif os:system_time/1
 
 #
 # Bifs in the erl_ddll module (the module actually does not exist)
@@ -578,7 +600,7 @@ bif io:printable_range/0
 bif os:unsetenv/1
 
 #
-# New in R17A
+# New in 17.0
 #
 
 bif re:inspect/2
@@ -600,10 +622,21 @@ bif maps:values/1
 
 bif erts_internal:cmp_term/2
 
+bif ets:take/2
+
 #
-# New in 17.1.
+# New in 17.1
 #
+
 bif erlang:fun_info_mfa/1
+
+# New in 18.0
+#
+
+bif erlang:get_keys/0
+bif ets:update_counter/4
+bif erts_debug:map_info/1
+
 #
 # Obsolete
 #
diff --git a/erts/emulator/beam/big.c b/erts/emulator/beam/big.c
index d1e46e3063..a4ea9c59ca 100644
--- a/erts/emulator/beam/big.c
+++ b/erts/emulator/beam/big.c
@@ -1577,6 +1577,46 @@ Eterm erts_sint64_to_big(Sint64 x, Eterm **hpp)
     return make_big(hp);
 }
 
+Eterm
+erts_uint64_array_to_big(Uint **hpp, int neg, int len, Uint64 *array)
+{
+    Uint *headerp;
+    int i, pot_digits, digits;
+
+    headerp = *hpp;
+
+    pot_digits = digits = 0;
+    for (i = 0; i < len; i++) {
+#if defined(ARCH_32) || HALFWORD_HEAP
+	Uint low_val = array[i] & ((Uint) 0xffffffff);
+	Uint high_val = (array[i] >> 32) & ((Uint) 0xffffffff);
+	BIG_DIGIT(headerp, pot_digits) = low_val;
+	pot_digits++;
+	if (low_val)
+	    digits = pot_digits;
+	BIG_DIGIT(headerp, pot_digits) = high_val;
+	pot_digits++;
+	if (high_val)
+	    digits = pot_digits;
+#else
+	Uint val = array[i];
+	BIG_DIGIT(headerp, pot_digits) = val;
+	pot_digits++;
+	if (val)
+	    digits = pot_digits;
+#endif
+    }	
+
+    if (neg)
+	*headerp = make_neg_bignum_header(digits);
+    else
+	*headerp = make_pos_bignum_header(digits);
+
+    *hpp = headerp + 1 + digits;
+
+    return make_big(headerp);
+}
+
 /*
 ** Convert a bignum to a double float
 */
diff --git a/erts/emulator/beam/big.h b/erts/emulator/beam/big.h
index da31876d75..4e4611de16 100644
--- a/erts/emulator/beam/big.h
+++ b/erts/emulator/beam/big.h
@@ -104,6 +104,9 @@ typedef Uint  dsize_t;	 /* Vector size type */
    : ERTS_UINT64_BIG_HEAP_SIZE__((X) >= 0 ? (X) : -(Uint64)(X)))
 #define ERTS_UINT64_HEAP_SIZE(X)				\
   (IS_USMALL(0, (X)) ? 0 : ERTS_UINT64_BIG_HEAP_SIZE__((X)))
+#define ERTS_MAX_SINT64_HEAP_SIZE (1 + 2)
+#define ERTS_MAX_UINT64_HEAP_SIZE (1 + 2)
+#define ERTS_UINT64_ARRAY_TO_BIG_MAX_HEAP_SZ(LEN) (2*(LEN)+1)
 
 #else
 
@@ -111,6 +114,9 @@ typedef Uint  dsize_t;	 /* Vector size type */
   (IS_SSMALL((X)) ? 0 : (1 + 1))
 #define ERTS_UINT64_HEAP_SIZE(X)				\
   (IS_USMALL(0, (X)) ? 0 : (1 + 1))
+#define ERTS_MAX_SINT64_HEAP_SIZE (1 + 1)
+#define ERTS_MAX_UINT64_HEAP_SIZE (1 + 1)
+#define ERTS_UINT64_ARRAY_TO_BIG_MAX_HEAP_SZ(LEN) ((LEN)+1)
 
 #endif
 
@@ -156,6 +162,7 @@ int term_to_Uint(Eterm, Uint*);
 int term_to_UWord(Eterm, UWord*);
 int term_to_Sint(Eterm, Sint*);
 #if HAVE_INT64
+Eterm erts_uint64_array_to_big(Uint **, int, int, Uint64 *);
 int term_to_Uint64(Eterm, Uint64*);
 int term_to_Sint64(Eterm, Sint64*);
 #endif
diff --git a/erts/emulator/beam/binary.c b/erts/emulator/beam/binary.c
index f50d484576..cc0b3b9b6c 100644
--- a/erts/emulator/beam/binary.c
+++ b/erts/emulator/beam/binary.c
@@ -26,7 +26,9 @@
 #include "global.h"
 #include "erl_process.h"
 #include "error.h"
+#define ERL_WANT_HIPE_BIF_WRAPPER__
 #include "bif.h"
+#undef ERL_WANT_HIPE_BIF_WRAPPER__
 #include "big.h"
 #include "erl_binary.h"
 #include "erl_bits.h"
@@ -83,8 +85,6 @@ new_binary(Process *p, byte *buf, Uint len)
      * Allocate the binary struct itself.
      */
     bptr = erts_bin_nrml_alloc(len);
-    bptr->flags = 0;
-    bptr->orig_size = len;
     erts_refc_init(&bptr->refc, 1);
     if (buf != NULL) {
 	sys_memcpy(bptr->orig_bytes, buf, len);
@@ -122,8 +122,6 @@ Eterm erts_new_mso_binary(Process *p, byte *buf, int len)
      * Allocate the binary struct itself.
      */
     bptr = erts_bin_nrml_alloc(len);
-    bptr->flags = 0;
-    bptr->orig_size = len;
     erts_refc_init(&bptr->refc, 1);
     if (buf != NULL) {
 	sys_memcpy(bptr->orig_bytes, buf, len);
@@ -177,7 +175,6 @@ erts_realloc_binary(Eterm bin, size_t size)
     } else {			/* REFC */
 	ProcBin* pb = (ProcBin *) bval;
 	Binary* newbin = erts_bin_realloc(pb->val, size);
-	newbin->orig_size = size;
 	pb->val = newbin;
 	pb->size = size;
 	pb->bytes = (byte*) newbin->orig_bytes;
diff --git a/erts/emulator/beam/break.c b/erts/emulator/beam/break.c
index 2cddfe2800..02e65cb9c6 100644
--- a/erts/emulator/beam/break.c
+++ b/erts/emulator/beam/break.c
@@ -36,7 +36,7 @@
 #include "atom.h"
 #include "beam_load.h"
 #include "erl_instrument.h"
-#include "erl_bif_timer.h"
+#include "erl_hl_timer.h"
 #include "erl_thr_progress.h"
 
 /* Forward declarations -- should really appear somewhere else */
@@ -108,7 +108,7 @@ process_killer(void)
 		case 'k': {
 		    ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND;
 		    erts_aint32_t state;
-		    erts_smp_proc_inc_refc(rp);
+		    erts_proc_inc_refc(rp);
 		    erts_smp_proc_lock(rp, rp_locks);
 		    state = erts_smp_atomic32_read_acqb(&rp->state);
 		    if (state & (ERTS_PSFLG_FREE
@@ -131,7 +131,7 @@ process_killer(void)
 						     0);
 		    }
 		    erts_smp_proc_unlock(rp, rp_locks);
-		    erts_smp_proc_dec_refc(rp);
+		    erts_proc_dec_refc(rp);
 		}
 		case 'n': br = 1; break;
 		case 'r': return;
@@ -209,25 +209,12 @@ print_process_info(int to, void *to_arg, Process *p)
     erts_print(to, to_arg, "State: ");
 
     state = erts_smp_atomic32_read_acqb(&p->state);
-    if (state & ERTS_PSFLG_FREE)
-	erts_print(to, to_arg, "Non Existing\n"); /* Should never happen */
-    else if (state & ERTS_PSFLG_EXITING)
-	erts_print(to, to_arg, "Exiting\n");
-    else if (state & ERTS_PSFLG_GC) {
-	garbing = 1;
-	running = 1;
-	erts_print(to, to_arg, "Garbing\n");
-    }
-    else if (state & ERTS_PSFLG_SUSPENDED)
-	erts_print(to, to_arg, "Suspended\n");
-    else if (state & ERTS_PSFLG_RUNNING) {
-	running = 1;
-	erts_print(to, to_arg, "Running\n");
-    }
-    else if (state & ERTS_PSFLG_ACTIVE)
-	erts_print(to, to_arg, "Scheduled\n");
-    else
-	erts_print(to, to_arg, "Waiting\n");
+    erts_dump_process_state(to, to_arg, state);
+    if (state & ERTS_PSFLG_GC) {
+        garbing = 1;
+        running = 1;
+    } else if (state & ERTS_PSFLG_RUNNING)
+        running = 1;
 
     /*
      * If the process is registered as a global process, display the
@@ -240,9 +227,9 @@ print_process_info(int to, void *to_arg, Process *p)
      * Display the initial function name
      */
     erts_print(to, to_arg, "Spawned as: %T:%T/%bpu\n",
-	       p->initial[INITIAL_MOD],
-	       p->initial[INITIAL_FUN],
-	       p->initial[INITIAL_ARI]);
+	       p->u.initial[INITIAL_MOD],
+	       p->u.initial[INITIAL_FUN],
+	       p->u.initial[INITIAL_ARI]);
     
     if (p->current != NULL) {
 	if (running) {
@@ -351,6 +338,10 @@ print_process_info(int to, void *to_arg, Process *p)
 #endif
 	    erts_stack_dump(to, to_arg, p);
     }
+
+    /* Display all states */
+    erts_print(to, to_arg, "Internal State: ");
+    erts_dump_extended_process_state(to, to_arg, state);
 }
 
 static void
@@ -680,27 +671,39 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
     char* dumpname;
     int secs;
     int env_erl_crash_dump_seconds_set = 1;
+    int i;
 
     if (ERTS_SOMEONE_IS_CRASH_DUMPING)
 	return;
 
 #ifdef ERTS_SMP
+    /* Order all managed threads to block, this has to be done
+       first to guarantee that this is the only thread to generate
+       crash dump. */
+    erts_thr_progress_fatal_error_block(&tpd_buf);
+
+#ifdef ERTS_THR_HAVE_SIG_FUNCS
     /*
-     * Wait for all managed threads to block. If all threads haven't blocked
-     * after a minute, we go anyway and hope for the best...
-     *
-     * We do not release system again. We expect an exit() or abort() after
-     * dump has been written.
+     * We suspend all scheduler threads so that we can dump some
+     * data about the currently running processes and scheduler data.
+     * We have to be very very careful when doing this as the schedulers
+     * could be anywhere.
      */
-    erts_thr_progress_fatal_error_block(60000, &tpd_buf);
-    /* Either worked or not... */
+    for (i = 0; i < erts_no_schedulers; i++) {
+        erts_tid_t tid = ERTS_SCHEDULER_IX(i)->tid;
+        if (!erts_equal_tids(tid,erts_thr_self()))
+            sys_thr_suspend(tid);
+    }
+
+#endif
 
     /* Allow us to pass certain places without locking... */
     erts_smp_atomic32_set_mb(&erts_writing_erl_crash_dump, 1);
     erts_smp_tsd_set(erts_is_crash_dumping_key, (void *) 1);
-#else
+
+#else /* !ERTS_SMP */
     erts_writing_erl_crash_dump = 1;
-#endif
+#endif /* ERTS_SMP */
 
     envsz = sizeof(env);
     /* ERL_CRASH_DUMP_SECONDS not set
@@ -753,11 +756,12 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
 	dumpname = "erl_crash.dump";
     else
 	dumpname = &dumpnamebuf[0];
+    
+    erts_fprintf(stderr,"\nCrash dump is being written to: %s...", dumpname);
 
     fd = open(dumpname,O_WRONLY | O_CREAT | O_TRUNC,0640);
-    if (fd < 0) 
+    if (fd < 0)
 	return; /* Can't create the crash dump, skip it */
-    
     time(&now);
     erts_fdprintf(fd, "=erl_crash_dump:0.3\n%s", ctime(&now));
 
@@ -771,9 +775,74 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
     erts_fdprintf(fd, "System version: ");
     erts_print_system_version(fd, NULL, NULL);
     erts_fdprintf(fd, "%s\n", "Compiled: " ERLANG_COMPILE_DATE);
+
     erts_fdprintf(fd, "Taints: ");
     erts_print_nif_taints(fd, NULL);
     erts_fdprintf(fd, "Atoms: %d\n", atom_table_size());
+
+#ifdef USE_THREADS
+    /* We want to note which thread it was that called erl_exit */
+    if (erts_get_scheduler_data()) {
+        erts_fdprintf(fd, "Calling Thread: scheduler:%d\n",
+                      erts_get_scheduler_data()->no);
+    } else {
+        if (!erts_thr_getname(erts_thr_self(), dumpnamebuf, MAXPATHLEN))
+            erts_fdprintf(fd, "Calling Thread: %s\n", dumpnamebuf);
+        else
+            erts_fdprintf(fd, "Calling Thread: %p\n", erts_thr_self());
+    }
+#else
+    erts_fdprintf(fd, "Calling Thread: scheduler:1\n");
+#endif
+
+#if defined(ERTS_HAVE_TRY_CATCH)
+
+    /*
+     * erts_print_scheduler_info is not guaranteed to be safe to call
+     * here for all schedulers as we may have suspended a scheduler
+     * in the middle of updating the STACK_TOP and STACK_START
+     * variables and thus when scanning the stack we could get
+     * segmentation faults. We protect against this very unlikely
+     * scenario by using the ERTS_SYS_TRY_CATCH.
+     */
+    for (i = 0; i < erts_no_schedulers; i++) {
+        ERTS_SYS_TRY_CATCH(
+            erts_print_scheduler_info(fd, NULL, ERTS_SCHEDULER_IX(i)),
+            erts_fdprintf(fd, "** crashed **\n"));
+    }
+#endif
+
+#ifdef ERTS_SMP
+
+#if defined(ERTS_THR_HAVE_SIG_FUNCS)
+
+    /* We resume all schedulers so that we are in a known safe state
+       when we write the rest of the crash dump */
+    for (i = 0; i < erts_no_schedulers; i++) {
+        erts_tid_t tid = ERTS_SCHEDULER_IX(i)->tid;
+        if (!erts_equal_tids(tid,erts_thr_self()))
+	    sys_thr_resume(tid);
+    }
+#endif
+
+    /*
+     * Wait for all managed threads to block. If all threads haven't blocked
+     * after a minute, we go anyway and hope for the best...
+     *
+     * We do not release system again. We expect an exit() or abort() after
+     * dump has been written.
+     */
+    erts_thr_progress_fatal_error_wait(60000);
+    /* Either worked or not... */
+#endif
+
+#ifndef ERTS_HAVE_TRY_CATCH
+    /* This is safe to call here, as all schedulers are blocked */
+    for (i = 0; i < erts_no_schedulers; i++) {
+        erts_print_scheduler_info(fd, NULL, ERTS_SCHEDULER_IX(i));
+    }
+#endif
+    
     info(fd, NULL); /* General system info */
     if (erts_ptab_initialized(&erts_proc))
 	process_info(fd, NULL); /* Info about each process and port */
@@ -803,7 +872,7 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
 
     erts_fdprintf(fd, "=end\n");
     close(fd);
-    erts_fprintf(stderr,"\nCrash dump was written to: %s\n", dumpname);
+    erts_fprintf(stderr,"done\n");
 }
 
 void
diff --git a/erts/emulator/beam/code_ix.c b/erts/emulator/beam/code_ix.c
index 4344558348..d925709bd0 100644
--- a/erts/emulator/beam/code_ix.c
+++ b/erts/emulator/beam/code_ix.c
@@ -130,7 +130,7 @@ int erts_try_seize_code_write_permission(Process* c_p)
 	ASSERT(code_writing_process != c_p);
 	qitem = erts_alloc(ERTS_ALC_T_CODE_IX_LOCK_Q, sizeof(*qitem));
 	qitem->p = c_p;
-	erts_smp_proc_inc_refc(c_p);
+	erts_proc_inc_refc(c_p);
 	qitem->next = code_write_queue;
 	code_write_queue = qitem;
 	erts_suspend(c_p, ERTS_PROC_LOCK_MAIN, NULL);
@@ -151,7 +151,7 @@ void erts_release_code_write_permission(void)
 	}
 	erts_smp_proc_unlock(qitem->p, ERTS_PROC_LOCK_STATUS);
 	code_write_queue = qitem->next;
-	erts_smp_proc_dec_refc(qitem->p);
+	erts_proc_dec_refc(qitem->p);
 	erts_free(ERTS_ALC_T_CODE_IX_LOCK_Q, qitem);
     }
     code_writing_process = NULL;
diff --git a/erts/emulator/beam/copy.c b/erts/emulator/beam/copy.c
index 50548850eb..850606dd86 100644
--- a/erts/emulator/beam/copy.c
+++ b/erts/emulator/beam/copy.c
@@ -21,6 +21,8 @@
 #  include "config.h"
 #endif
 
+#define ERL_WANT_GC_INTERNALS__
+
 #include "sys.h"
 #include "erl_vm.h"
 #include "global.h"
@@ -125,6 +127,52 @@ Uint size_object(Eterm obj)
 			obj = *bptr;
 			break;
 		    }
+		case MAP_SUBTAG:
+		    switch (MAP_HEADER_TYPE(hdr)) {
+			case MAP_HEADER_TAG_FLATMAP_HEAD :
+                            {
+                                Uint n;
+                                flatmap_t *mp;
+                                mp  = (flatmap_t*)flatmap_val_rel(obj,base);
+                                ptr = (Eterm *)mp;
+                                n   = flatmap_get_size(mp) + 1;
+                                sum += n + 2;
+                                ptr += 2; /* hdr + size words */
+                                while (n--) {
+                                    obj = *ptr++;
+                                    if (!IS_CONST(obj)) {
+                                        ESTACK_PUSH(s, obj);
+                                    }
+                                }
+                                goto pop_next;
+                            }
+			case MAP_HEADER_TAG_HAMT_HEAD_BITMAP :
+			case MAP_HEADER_TAG_HAMT_HEAD_ARRAY :
+			case MAP_HEADER_TAG_HAMT_NODE_BITMAP :
+			    {
+				Eterm *head;
+				Uint sz;
+				head  = hashmap_val_rel(obj, base);
+				sz    = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+				sum  += 1 + sz + header_arity(hdr);
+				head += 1 + header_arity(hdr);
+
+				if (sz == 0) {
+				    goto pop_next;
+				}
+				while(sz-- > 1) {
+				    obj = head[sz];
+				    if (!IS_CONST(obj)) {
+					ESTACK_PUSH(s, obj);
+				    }
+				}
+				obj = head[0];
+			    }
+			    break;
+			default:
+			    erl_exit(ERTS_ABORT_EXIT, "size_object: bad hashmap type %d\n", MAP_HEADER_TYPE(hdr));
+		    }
+		    break;
 		case SUB_BINARY_SUBTAG:
 		    {
 			Eterm real_bin;
@@ -152,25 +200,7 @@ Uint size_object(Eterm obj)
 			goto pop_next;
 		    }
 		    break;
-		case MAP_SUBTAG:
-		    {
-			Uint n;
-			map_t *mp;
-			mp  = (map_t*)map_val_rel(obj,base);
-			ptr = (Eterm *)mp;
-			n   = map_get_size(mp) + 1;
-			sum += n + 2;
-			ptr += 2; /* hdr + size words */
-			while (n--) {
-			    obj = *ptr++;
-			    if (!IS_CONST(obj)) {
-				ESTACK_PUSH(s, obj);
-			    }
-			}
-			goto pop_next;
-		    }
-		    break;
-		case BIN_MATCHSTATE_SUBTAG:
+                case BIN_MATCHSTATE_SUBTAG:
 		    erl_exit(ERTS_ABORT_EXIT,
 			     "size_object: matchstate term not allowed");
 		default:
@@ -338,15 +368,6 @@ Eterm copy_struct(Eterm obj, Uint sz, Eterm** hpp, ErlOffHeap* off_heap)
 		    }
 		}
 		break;
-	    case MAP_SUBTAG:
-		{
-		    i = map_get_size(objp) + 3;
-		    *argp = make_map_rel(htop, dst_base);
-		    while (i--) {
-			*htop++ = *objp++;
-		    }
-		}
-		break;
 	    case REFC_BINARY_SUBTAG:
 		{
 		    ProcBin* pb;
@@ -457,7 +478,7 @@ Eterm copy_struct(Eterm obj, Uint sz, Eterm** hpp, ErlOffHeap* off_heap)
 		{
 		  ExternalThing *etp = (ExternalThing *) htop;
 
-		  i =  thing_arityval(hdr) + 1;
+		  i  = thing_arityval(hdr) + 1;
 		  tp = htop;
 
 		  while (i--)  {
@@ -471,6 +492,28 @@ Eterm copy_struct(Eterm obj, Uint sz, Eterm** hpp, ErlOffHeap* off_heap)
 		  *argp = make_external_rel(tp, dst_base);
 		}
 		break;
+	    case MAP_SUBTAG:
+		tp = htop;
+		switch (MAP_HEADER_TYPE(hdr)) {
+		    case MAP_HEADER_TAG_FLATMAP_HEAD :
+                        i = flatmap_get_size(objp) + 3;
+                        *argp = make_flatmap_rel(htop, dst_base);
+                        while (i--) {
+                            *htop++ = *objp++;
+                        }
+			break;
+		    case MAP_HEADER_TAG_HAMT_HEAD_BITMAP :
+		    case MAP_HEADER_TAG_HAMT_HEAD_ARRAY :
+			*htop++ = *objp++;
+		    case MAP_HEADER_TAG_HAMT_NODE_BITMAP :
+			i = 1 + hashmap_bitcount(MAP_HEADER_VAL(hdr));
+			while (i--)  { *htop++ = *objp++; }
+			*argp = make_hashmap_rel(tp, dst_base);
+			break;
+		    default:
+			erl_exit(ERTS_ABORT_EXIT, "copy_struct: bad hashmap type %d\n", MAP_HEADER_TYPE(hdr));
+		}
+		break;
 	    case BIN_MATCHSTATE_SUBTAG:
 		erl_exit(ERTS_ABORT_EXIT,
 			 "copy_struct: matchstate term not allowed");
@@ -565,11 +608,6 @@ Eterm copy_shallow(Eterm* ptr, Uint sz, Eterm** hpp, ErlOffHeap* off_heap)
 		    erts_refc_inc(&funp->fe->refc, 2);
 		}
 		goto off_heap_common;
-
-	    case MAP_SUBTAG:
-		*hp++ = *tp++;
-		sz--;
-		break;
 	    case EXTERNAL_PID_SUBTAG:
 	    case EXTERNAL_PORT_SUBTAG:
 	    case EXTERNAL_REF_SUBTAG:
@@ -605,7 +643,6 @@ Eterm copy_shallow(Eterm* ptr, Uint sz, Eterm** hpp, ErlOffHeap* off_heap)
 	}
     }
     *hpp = hp;
-
     return res;
 }
 
diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c
index ec07ddcd9c..142fcb3c00 100644
--- a/erts/emulator/beam/dist.c
+++ b/erts/emulator/beam/dist.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 1996-2013. All Rights Reserved.
+ * Copyright Ericsson AB 1996-2014. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -119,7 +119,7 @@ Export* dmonitor_p_trap = NULL;
 /* forward declarations */
 
 static void clear_dist_entry(DistEntry*);
-static int dsig_send(ErtsDSigData *, Eterm, Eterm, int);
+static int dsig_send_ctl(ErtsDSigData* dsdp, Eterm ctl, int force_busy);
 static void send_nodes_mon_msgs(Process *, Eterm, Eterm, Eterm, Eterm);
 static void init_nodes_monitors(void);
 
@@ -388,11 +388,7 @@ static void doit_node_link_net_exits(ErtsLink *lnk, void *vnecp)
 	    Eterm tup;
 	    Eterm *hp = erts_alloc_message_heap(3,&bp,&ohp,rp,&rp_locks);
 	    tup = TUPLE2(hp, am_nodedown, name);
-	    erts_queue_message(rp, &rp_locks, bp, tup, NIL
-#ifdef USE_VM_PROBES
-			       , NIL
-#endif
-			       );
+	    erts_queue_message(rp, &rp_locks, bp, tup, NIL);
 	}
 	erts_smp_proc_unlock(rp, rp_locks);
     }
@@ -622,9 +618,7 @@ alloc_dist_obuf(Uint size)
     ErtsDistOutputBuf *obuf;
     Uint obuf_size = sizeof(ErtsDistOutputBuf)+sizeof(byte)*(size-1);
     Binary *bin = erts_bin_drv_alloc(obuf_size);
-    bin->flags = BIN_FLAG_DRV;
     erts_refc_init(&bin->refc, 1);
-    bin->orig_size = (SWord) obuf_size;
     obuf = (ErtsDistOutputBuf *) &bin->orig_bytes[0];
 #ifdef DEBUG
     obuf->dbg_pattern = ERTS_DIST_OUTPUT_BUF_DBG_PATTERN;
@@ -709,6 +703,55 @@ static void clear_dist_entry(DistEntry *dep)
     }
 }
 
+void erts_dsend_context_dtor(Binary* ctx_bin)
+{
+    ErtsSendContext* ctx = ERTS_MAGIC_BIN_DATA(ctx_bin);
+    switch (ctx->dss.phase) {
+    case ERTS_DSIG_SEND_PHASE_MSG_SIZE:
+	DESTROY_SAVED_WSTACK(&ctx->dss.u.sc.wstack);
+	break;
+    case ERTS_DSIG_SEND_PHASE_MSG_ENCODE:
+	DESTROY_SAVED_WSTACK(&ctx->dss.u.ec.wstack);
+	break;
+    default:;
+    }
+    if (ctx->dss.phase >= ERTS_DSIG_SEND_PHASE_ALLOC && ctx->dss.obuf) {
+	free_dist_obuf(ctx->dss.obuf);
+    }
+    if (ctx->dep_to_deref)
+	erts_deref_dist_entry(ctx->dep_to_deref);
+}
+
+Eterm erts_dsend_export_trap_context(Process* p, ErtsSendContext* ctx)
+{
+    struct exported_ctx {
+	ErtsSendContext ctx;
+	ErtsAtomCacheMap acm;
+    };
+    Binary* ctx_bin = erts_create_magic_binary(sizeof(struct exported_ctx),
+					       erts_dsend_context_dtor);
+    struct exported_ctx* dst = ERTS_MAGIC_BIN_DATA(ctx_bin);
+    Uint ctl_size = !HALFWORD_HEAP ? 0 : (arityval(ctx->ctl_heap[0]) + 1);
+    Eterm* hp = HAlloc(p, ctl_size + PROC_BIN_SIZE);
+
+    sys_memcpy(&dst->ctx, ctx, sizeof(ErtsSendContext));
+    ASSERT(ctx->dss.ctl == make_tuple(ctx->ctl_heap));
+#if !HALFWORD_HEAP
+    dst->ctx.dss.ctl = make_tuple(dst->ctx.ctl_heap);
+#else
+    /* Must put control tuple in low mem */
+    sys_memcpy(hp, ctx->ctl_heap,  ctl_size*sizeof(Eterm));
+    dst->ctx.dss.ctl = make_tuple(hp);
+    hp += ctl_size;
+#endif
+    if (ctx->dss.acmp) {
+	sys_memcpy(&dst->acm, ctx->dss.acmp, sizeof(ErtsAtomCacheMap));
+	dst->ctx.dss.acmp = &dst->acm;
+    }
+    return erts_mk_magic_binary_term(&hp, &MSO(p), ctx_bin);
+}
+
+
 /*
  * The erts_dsig_send_*() functions implemented below, sends asynchronous
  * distributed signals to other Erlang nodes. Before sending a distributed
@@ -731,7 +774,7 @@ erts_dsig_send_link(ErtsDSigData *dsdp, Eterm local, Eterm remote)
     int res;
     UseTmpHeapNoproc(4);
 
-    res = dsig_send(dsdp, ctl, THE_NON_VALUE, 0);
+    res = dsig_send_ctl(dsdp, ctl, 0);
     UnUseTmpHeapNoproc(4);
     return res;
 }
@@ -744,7 +787,7 @@ erts_dsig_send_unlink(ErtsDSigData *dsdp, Eterm local, Eterm remote)
     int res;
 
     UseTmpHeapNoproc(4);
-    res = dsig_send(dsdp, ctl, THE_NON_VALUE, 0);
+    res = dsig_send_ctl(dsdp, ctl, 0);
     UnUseTmpHeapNoproc(4);
     return res;
 }
@@ -772,7 +815,7 @@ erts_dsig_send_m_exit(ErtsDSigData *dsdp, Eterm watcher, Eterm watched,
     erts_smp_de_links_unlock(dsdp->dep);
 #endif
 
-    res = dsig_send(dsdp, ctl, THE_NON_VALUE, 1);
+    res = dsig_send_ctl(dsdp, ctl, 1);
     UnUseTmpHeapNoproc(6);
     return res;
 }
@@ -793,7 +836,7 @@ erts_dsig_send_monitor(ErtsDSigData *dsdp, Eterm watcher, Eterm watched,
 		 make_small(DOP_MONITOR_P),
 		 watcher, watched, ref);
 
-    res = dsig_send(dsdp, ctl, THE_NON_VALUE, 0);
+    res = dsig_send_ctl(dsdp, ctl, 0);
     UnUseTmpHeapNoproc(5);
     return res;
 }
@@ -815,18 +858,17 @@ erts_dsig_send_demonitor(ErtsDSigData *dsdp, Eterm watcher,
 		 make_small(DOP_DEMONITOR_P),
 		 watcher, watched, ref);
 
-    res = dsig_send(dsdp, ctl, THE_NON_VALUE, force);
+    res = dsig_send_ctl(dsdp, ctl, force);
     UnUseTmpHeapNoproc(5);
     return res;
 }
 
 int
-erts_dsig_send_msg(ErtsDSigData *dsdp, Eterm remote, Eterm message)
+erts_dsig_send_msg(Eterm remote, Eterm message, ErtsSendContext* ctx)
 {
     Eterm ctl;
-    DeclareTmpHeapNoproc(ctl_heap,5);
     Eterm token = NIL;
-    Process *sender = dsdp->proc;
+    Process *sender = ctx->dsd.proc;
     int res;
 #ifdef USE_VM_PROBES
     Sint tok_label = 0;
@@ -838,8 +880,7 @@ erts_dsig_send_msg(ErtsDSigData *dsdp, Eterm remote, Eterm message)
     DTRACE_CHARBUF(receiver_name, 64);
 #endif
 
-    UseTmpHeapNoproc(5);
-    if (SEQ_TRACE_TOKEN(sender) != NIL 
+    if (SEQ_TRACE_TOKEN(sender) != NIL
 #ifdef USE_VM_PROBES
 	&& SEQ_TRACE_TOKEN(sender) != am_have_dt_utag 
 #endif
@@ -852,7 +893,7 @@ erts_dsig_send_msg(ErtsDSigData *dsdp, Eterm remote, Eterm message)
     *node_name = *sender_name = *receiver_name = '\0';
     if (DTRACE_ENABLED(message_send) || DTRACE_ENABLED(message_send_remote)) {
         erts_snprintf(node_name, sizeof(DTRACE_CHARBUF_NAME(node_name)),
-                      "%T", dsdp->dep->sysname);
+                      "%T", ctx->dsd.dep->sysname);
         erts_snprintf(sender_name, sizeof(DTRACE_CHARBUF_NAME(sender_name)),
                       "%T", sender->common.id);
         erts_snprintf(receiver_name, sizeof(DTRACE_CHARBUF_NAME(receiver_name)),
@@ -867,26 +908,28 @@ erts_dsig_send_msg(ErtsDSigData *dsdp, Eterm remote, Eterm message)
 #endif
 
     if (token != NIL)
-	ctl = TUPLE4(&ctl_heap[0],
+	ctl = TUPLE4(&ctx->ctl_heap[0],
 		     make_small(DOP_SEND_TT), am_Cookie, remote, token);
     else
-	ctl = TUPLE3(&ctl_heap[0], make_small(DOP_SEND), am_Cookie, remote);
+	ctl = TUPLE3(&ctx->ctl_heap[0], make_small(DOP_SEND), am_Cookie, remote);
     DTRACE6(message_send, sender_name, receiver_name,
             msize, tok_label, tok_lastcnt, tok_serial);
     DTRACE7(message_send_remote, sender_name, node_name, receiver_name,
             msize, tok_label, tok_lastcnt, tok_serial);
-    res = dsig_send(dsdp, ctl, message, 0);
-    UnUseTmpHeapNoproc(5);
+    ctx->dss.ctl = ctl;
+    ctx->dss.msg = message;
+    ctx->dss.force_busy = 0;
+    res = erts_dsig_send(&ctx->dsd, &ctx->dss);
     return res;
 }
 
 int
-erts_dsig_send_reg_msg(ErtsDSigData *dsdp, Eterm remote_name, Eterm message)
+erts_dsig_send_reg_msg(Eterm remote_name, Eterm message,
+		       ErtsSendContext* ctx)
 {
     Eterm ctl;
-    DeclareTmpHeapNoproc(ctl_heap,6);
     Eterm token = NIL;
-    Process *sender = dsdp->proc;
+    Process *sender = ctx->dsd.proc;
     int res;
 #ifdef USE_VM_PROBES
     Sint tok_label = 0;
@@ -898,7 +941,6 @@ erts_dsig_send_reg_msg(ErtsDSigData *dsdp, Eterm remote_name, Eterm message)
     DTRACE_CHARBUF(receiver_name, 128);
 #endif
 
-    UseTmpHeapNoproc(6);
     if (SEQ_TRACE_TOKEN(sender) != NIL
 #ifdef USE_VM_PROBES
 	&& SEQ_TRACE_TOKEN(sender) != am_have_dt_utag 
@@ -912,7 +954,7 @@ erts_dsig_send_reg_msg(ErtsDSigData *dsdp, Eterm remote_name, Eterm message)
     *node_name = *sender_name = *receiver_name = '\0';
     if (DTRACE_ENABLED(message_send) || DTRACE_ENABLED(message_send_remote)) {
         erts_snprintf(node_name, sizeof(DTRACE_CHARBUF_NAME(node_name)),
-                      "%T", dsdp->dep->sysname);
+                      "%T", ctx->dsd.dep->sysname);
         erts_snprintf(sender_name, sizeof(DTRACE_CHARBUF_NAME(sender_name)),
                       "%T", sender->common.id);
         erts_snprintf(receiver_name, sizeof(DTRACE_CHARBUF_NAME(receiver_name)),
@@ -927,17 +969,19 @@ erts_dsig_send_reg_msg(ErtsDSigData *dsdp, Eterm remote_name, Eterm message)
 #endif
 
     if (token != NIL)
-	ctl = TUPLE5(&ctl_heap[0], make_small(DOP_REG_SEND_TT),
+	ctl = TUPLE5(&ctx->ctl_heap[0], make_small(DOP_REG_SEND_TT),
 		     sender->common.id, am_Cookie, remote_name, token);
     else
-	ctl = TUPLE4(&ctl_heap[0], make_small(DOP_REG_SEND),
+	ctl = TUPLE4(&ctx->ctl_heap[0], make_small(DOP_REG_SEND),
 		     sender->common.id, am_Cookie, remote_name);
     DTRACE6(message_send, sender_name, receiver_name,
             msize, tok_label, tok_lastcnt, tok_serial);
     DTRACE7(message_send_remote, sender_name, node_name, receiver_name,
             msize, tok_label, tok_lastcnt, tok_serial);
-    res = dsig_send(dsdp, ctl, message, 0);
-    UnUseTmpHeapNoproc(6);
+    ctx->dss.ctl = ctl;
+    ctx->dss.msg = message;
+    ctx->dss.force_busy = 0;
+    res = erts_dsig_send(&ctx->dsd, &ctx->dss);
     return res;
 }
 
@@ -994,7 +1038,7 @@ erts_dsig_send_exit_tt(ErtsDSigData *dsdp, Eterm local, Eterm remote,
     DTRACE7(process_exit_signal_remote, sender_name, node_name,
             remote_name, reason_str, tok_label, tok_lastcnt, tok_serial);
     /* forced, i.e ignore busy */
-    res = dsig_send(dsdp, ctl, THE_NON_VALUE, 1);
+    res = dsig_send_ctl(dsdp, ctl, 1);
     UnUseTmpHeapNoproc(6);
     return res;
 }
@@ -1010,7 +1054,7 @@ erts_dsig_send_exit(ErtsDSigData *dsdp, Eterm local, Eterm remote, Eterm reason)
     ctl = TUPLE4(&ctl_heap[0],
 		 make_small(DOP_EXIT), local, remote, reason);
     /* forced, i.e ignore busy */
-    res =  dsig_send(dsdp, ctl, THE_NON_VALUE, 1);
+    res =  dsig_send_ctl(dsdp, ctl, 1);
     UnUseTmpHeapNoproc(5);
     return res;
 }
@@ -1026,7 +1070,7 @@ erts_dsig_send_exit2(ErtsDSigData *dsdp, Eterm local, Eterm remote, Eterm reason
     ctl = TUPLE4(&ctl_heap[0],
 		 make_small(DOP_EXIT2), local, remote, reason);
 
-    res = dsig_send(dsdp, ctl, THE_NON_VALUE, 0);
+    res = dsig_send_ctl(dsdp, ctl, 0);
     UnUseTmpHeapNoproc(5);
     return res;
 }
@@ -1043,7 +1087,7 @@ erts_dsig_send_group_leader(ErtsDSigData *dsdp, Eterm leader, Eterm remote)
     ctl = TUPLE3(&ctl_heap[0],
 		 make_small(DOP_GROUP_LEADER), leader, remote);
 
-    res = dsig_send(dsdp, ctl, THE_NON_VALUE, 0);
+    res = dsig_send_ctl(dsdp, ctl, 0);
     UnUseTmpHeapNoproc(4);
     return res;
 }
@@ -1693,194 +1737,235 @@ int erts_net_message(Port *prt,
     return -1;
 }
 
-static int
-dsig_send(ErtsDSigData *dsdp, Eterm ctl, Eterm msg, int force_busy)
+static int dsig_send_ctl(ErtsDSigData* dsdp, Eterm ctl, int force_busy)
 {
+    struct erts_dsig_send_context ctx;
+    int ret;
+    ctx.ctl = ctl;
+    ctx.msg = THE_NON_VALUE;
+    ctx.force_busy = force_busy;
+    ctx.phase = ERTS_DSIG_SEND_PHASE_INIT;
+#ifdef DEBUG
+    ctx.reds = 1; /* provoke assert below (no reduction count without msg) */
+#endif
+    ret = erts_dsig_send(dsdp, &ctx);
+    ASSERT(ret != ERTS_DSIG_SEND_CONTINUE);
+    return ret;
+}
+
+int
+erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx)
+{
+    int retval;
+    Sint initial_reds = ctx->reds;
     Eterm cid;
-    int suspended = 0;
-    int resume = 0;
-    Uint32 pass_through_size;
-    Uint data_size, dhdr_ext_size;
-    ErtsAtomCacheMap *acmp;
-    ErtsDistOutputBuf *obuf;
-    DistEntry *dep = dsdp->dep;
-    Uint32 flags = dep->flags;
-    Process *c_p = dsdp->proc;
 
-    if (!c_p || dsdp->no_suspend)
-	force_busy = 1;
+    while (1) {
+	switch (ctx->phase) {
+	case ERTS_DSIG_SEND_PHASE_INIT:
+	    ctx->flags = dsdp->dep->flags;
+	    ctx->c_p = dsdp->proc;
 
-    ERTS_SMP_LC_ASSERT(!c_p
-		       || (ERTS_PROC_LOCK_MAIN
-			   == erts_proc_lc_my_proc_locks(c_p)));
+	    if (!ctx->c_p || dsdp->no_suspend)
+		ctx->force_busy = 1;
 
-    if (!erts_is_alive)
-	return ERTS_DSIG_SEND_OK;
+	    ERTS_SMP_LC_ASSERT(!ctx->c_p
+			       || (ERTS_PROC_LOCK_MAIN
+				   == erts_proc_lc_my_proc_locks(ctx->c_p)));
 
-    if (flags & DFLAG_DIST_HDR_ATOM_CACHE) {
-	acmp = erts_get_atom_cache_map(c_p);
-	pass_through_size = 0;
-    }
-    else {
-	acmp = NULL;
-	pass_through_size = 1;
-    }
+	    if (!erts_is_alive)
+		return ERTS_DSIG_SEND_OK;
 
-#ifdef ERTS_DIST_MSG_DBG
-    erts_fprintf(stderr, ">>%s CTL: %T\n", pass_through_size ? "P" : " ", ctl);
-    if (is_value(msg))
-	erts_fprintf(stderr, "    MSG: %T\n", msg);
-#endif
+	    if (ctx->flags & DFLAG_DIST_HDR_ATOM_CACHE) {
+		ctx->acmp = erts_get_atom_cache_map(ctx->c_p);
+		ctx->pass_through_size = 0;
+	    }
+	    else {
+		ctx->acmp = NULL;
+		ctx->pass_through_size = 1;
+	    }
 
-    data_size = pass_through_size;
-    erts_reset_atom_cache_map(acmp);
-    data_size += erts_encode_dist_ext_size(ctl, flags, acmp);
-    if (is_value(msg))
-	data_size += erts_encode_dist_ext_size(msg, flags, acmp);
-    erts_finalize_atom_cache_map(acmp, flags);
+    #ifdef ERTS_DIST_MSG_DBG
+	    erts_fprintf(stderr, ">>%s CTL: %T\n", ctx->pass_through_size ? "P" : " ", ctx->ctl);
+	    if (is_value(msg))
+		erts_fprintf(stderr, "    MSG: %T\n", msg);
+    #endif
+
+	    ctx->data_size = ctx->pass_through_size;
+	    erts_reset_atom_cache_map(ctx->acmp);
+	    erts_encode_dist_ext_size(ctx->ctl, ctx->flags, ctx->acmp, &ctx->data_size);
+
+	    if (is_value(ctx->msg)) {
+		ctx->u.sc.wstack.wstart = NULL;
+		ctx->u.sc.flags = ctx->flags;
+		ctx->u.sc.level = 0;
+		ctx->phase = ERTS_DSIG_SEND_PHASE_MSG_SIZE;
+	    } else {
+		ctx->phase = ERTS_DSIG_SEND_PHASE_ALLOC;
+	    }
+	    break;
 
-    dhdr_ext_size = erts_encode_ext_dist_header_size(acmp);
-    data_size += dhdr_ext_size;
+	case ERTS_DSIG_SEND_PHASE_MSG_SIZE:
+	    if (erts_encode_dist_ext_size_int(ctx->msg, ctx, &ctx->data_size)) {
+		retval = ERTS_DSIG_SEND_CONTINUE;
+		goto done;
+	    }
 
-    obuf = alloc_dist_obuf(data_size);
-    obuf->ext_endp = &obuf->data[0] + pass_through_size + dhdr_ext_size;
+	    ctx->phase = ERTS_DSIG_SEND_PHASE_ALLOC;
+	case ERTS_DSIG_SEND_PHASE_ALLOC:
+	    erts_finalize_atom_cache_map(ctx->acmp, ctx->flags);
+
+	    ctx->dhdr_ext_size = erts_encode_ext_dist_header_size(ctx->acmp);
+	    ctx->data_size += ctx->dhdr_ext_size;
+
+	    ctx->obuf = alloc_dist_obuf(ctx->data_size);
+	    ctx->obuf->ext_endp = &ctx->obuf->data[0] + ctx->pass_through_size + ctx->dhdr_ext_size;
+
+	    /* Encode internal version of dist header */
+	    ctx->obuf->extp = erts_encode_ext_dist_header_setup(ctx->obuf->ext_endp, ctx->acmp);
+	    /* Encode control message */
+	    erts_encode_dist_ext(ctx->ctl, &ctx->obuf->ext_endp, ctx->flags, ctx->acmp, NULL, NULL);
+	    if (is_value(ctx->msg)) {
+		ctx->u.ec.flags = ctx->flags;
+		ctx->u.ec.level = 0;
+		ctx->u.ec.wstack.wstart = NULL;
+		ctx->phase = ERTS_DSIG_SEND_PHASE_MSG_ENCODE;
+	    } else {
+		ctx->phase = ERTS_DSIG_SEND_PHASE_FIN;
+	    }
+	    break;
 
-    /* Encode internal version of dist header */
-    obuf->extp = erts_encode_ext_dist_header_setup(obuf->ext_endp, acmp);
-    /* Encode control message */
-    erts_encode_dist_ext(ctl, &obuf->ext_endp, flags, acmp);
-    if (is_value(msg)) {
-	/* Encode message */
-	erts_encode_dist_ext(msg, &obuf->ext_endp, flags, acmp);
-    }
+	case ERTS_DSIG_SEND_PHASE_MSG_ENCODE:
+	    if (erts_encode_dist_ext(ctx->msg, &ctx->obuf->ext_endp, ctx->flags, ctx->acmp, &ctx->u.ec, &ctx->reds)) {
+		retval = ERTS_DSIG_SEND_CONTINUE;
+		goto done;
+	    }
 
-    ASSERT(obuf->extp < obuf->ext_endp);
-    ASSERT(&obuf->data[0] <= obuf->extp - pass_through_size);
-    ASSERT(obuf->ext_endp <= &obuf->data[0] + data_size);
+	    ctx->phase = ERTS_DSIG_SEND_PHASE_FIN;
+	case ERTS_DSIG_SEND_PHASE_FIN: {
+	    DistEntry *dep = dsdp->dep;
+	    int suspended = 0;
+	    int resume = 0;
 
-    data_size = obuf->ext_endp - obuf->extp;
+	    ASSERT(ctx->obuf->extp < ctx->obuf->ext_endp);
+	    ASSERT(&ctx->obuf->data[0] <= ctx->obuf->extp - ctx->pass_through_size);
+	    ASSERT(ctx->obuf->ext_endp <= &ctx->obuf->data[0] + ctx->data_size);
 
-    /*
-     * Signal encoded; now verify that the connection still exists,
-     * and if so enqueue the signal and schedule it for send.
-     */
-    obuf->next = NULL;
-    erts_smp_de_rlock(dep);
-    cid = dep->cid;
-    if (cid != dsdp->cid
-	|| dep->connection_id != dsdp->connection_id
-	|| dep->status & ERTS_DE_SFLG_EXITING) {
-	/* Not the same connection as when we started; drop message... */
-	erts_smp_de_runlock(dep);
-	free_dist_obuf(obuf);
-    }
-    else {
-	ErtsProcList *plp = NULL;
-	erts_smp_mtx_lock(&dep->qlock);
-	dep->qsize += size_obuf(obuf);
-	if (dep->qsize >= erts_dist_buf_busy_limit)
-	    dep->qflgs |= ERTS_DE_QFLG_BUSY;
-	if (!force_busy && (dep->qflgs & ERTS_DE_QFLG_BUSY)) {
-	    erts_smp_mtx_unlock(&dep->qlock);
+	    ctx->data_size = ctx->obuf->ext_endp - ctx->obuf->extp;
 
-	    plp = erts_proclist_create(c_p);
-	    erts_suspend(c_p, ERTS_PROC_LOCK_MAIN, NULL);
-	    suspended = 1;
-	    erts_smp_mtx_lock(&dep->qlock);
-	}
+	    /*
+	     * Signal encoded; now verify that the connection still exists,
+	     * and if so enqueue the signal and schedule it for send.
+	     */
+	    ctx->obuf->next = NULL;
+	    erts_smp_de_rlock(dep);
+	    cid = dep->cid;
+	    if (cid != dsdp->cid
+		|| dep->connection_id != dsdp->connection_id
+		|| dep->status & ERTS_DE_SFLG_EXITING) {
+		/* Not the same connection as when we started; drop message... */
+		erts_smp_de_runlock(dep);
+		free_dist_obuf(ctx->obuf);
+	    }
+	    else {
+		ErtsProcList *plp = NULL;
+		erts_smp_mtx_lock(&dep->qlock);
+		dep->qsize += size_obuf(ctx->obuf);
+		if (dep->qsize >= erts_dist_buf_busy_limit)
+		    dep->qflgs |= ERTS_DE_QFLG_BUSY;
+		if (!ctx->force_busy && (dep->qflgs & ERTS_DE_QFLG_BUSY)) {
+		    erts_smp_mtx_unlock(&dep->qlock);
+
+		    plp = erts_proclist_create(ctx->c_p);
+		    erts_suspend(ctx->c_p, ERTS_PROC_LOCK_MAIN, NULL);
+		    suspended = 1;
+		    erts_smp_mtx_lock(&dep->qlock);
+		}
 
-	/* Enqueue obuf on dist entry */
-	if (dep->out_queue.last)
-	    dep->out_queue.last->next = obuf;
-	else
-	    dep->out_queue.first = obuf;
-	dep->out_queue.last = obuf;
+		/* Enqueue obuf on dist entry */
+		if (dep->out_queue.last)
+		    dep->out_queue.last->next = ctx->obuf;
+		else
+		    dep->out_queue.first = ctx->obuf;
+		dep->out_queue.last = ctx->obuf;
+
+		if (!ctx->force_busy) {
+		    if (!(dep->qflgs & ERTS_DE_QFLG_BUSY)) {
+			if (suspended)
+			    resume = 1; /* was busy when we started, but isn't now */
+    #ifdef USE_VM_PROBES
+			if (resume && DTRACE_ENABLED(dist_port_not_busy)) {
+			    DTRACE_CHARBUF(port_str, 64);
+			    DTRACE_CHARBUF(remote_str, 64);
+
+			    erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)),
+					  "%T", cid);
+			    erts_snprintf(remote_str, sizeof(DTRACE_CHARBUF_NAME(remote_str)),
+					  "%T", dep->sysname);
+			    DTRACE3(dist_port_not_busy, erts_this_node_sysname,
+				    port_str, remote_str);
+			}
+    #endif
+		    }
+		    else {
+			/* Enqueue suspended process on dist entry */
+			ASSERT(plp);
+			erts_proclist_store_last(&dep->suspended, plp);
+		    }
+		}
 
-	if (!force_busy) {
-	    if (!(dep->qflgs & ERTS_DE_QFLG_BUSY)) {
-		if (suspended)
-		    resume = 1; /* was busy when we started, but isn't now */
-#ifdef USE_VM_PROBES
-                if (resume && DTRACE_ENABLED(dist_port_not_busy)) {
-                    DTRACE_CHARBUF(port_str, 64);
-                    DTRACE_CHARBUF(remote_str, 64);
-
-                    erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)),
-                                  "%T", cid);
-                    erts_snprintf(remote_str, sizeof(DTRACE_CHARBUF_NAME(remote_str)),
-                                  "%T", dep->sysname);
-                    DTRACE3(dist_port_not_busy, erts_this_node_sysname,
-                            port_str, remote_str);
-                }
-#endif
+		erts_smp_mtx_unlock(&dep->qlock);
+		erts_schedule_dist_command(NULL, dep);
+		erts_smp_de_runlock(dep);
+
+		if (resume) {
+		    erts_resume(ctx->c_p, ERTS_PROC_LOCK_MAIN);
+		    erts_proclist_destroy(plp);
+		    /*
+		     * Note that the calling process still have to yield as if it
+		     * suspended. If not, the calling process could later be
+		     * erroneously scheduled when it shouldn't be.
+		     */
+		}
 	    }
-	    else {
-		/* Enqueue suspended process on dist entry */
-		ASSERT(plp);
-		erts_proclist_store_last(&dep->suspended, plp);
+	    ctx->obuf = NULL;
+
+	    if (suspended) {
+    #ifdef USE_VM_PROBES
+		if (!resume && DTRACE_ENABLED(dist_port_busy)) {
+		    DTRACE_CHARBUF(port_str, 64);
+		    DTRACE_CHARBUF(remote_str, 64);
+		    DTRACE_CHARBUF(pid_str, 16);
+
+		    erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), "%T", cid);
+		    erts_snprintf(remote_str, sizeof(DTRACE_CHARBUF_NAME(remote_str)),
+				  "%T", dep->sysname);
+		    erts_snprintf(pid_str, sizeof(DTRACE_CHARBUF_NAME(pid_str)),
+				  "%T", ctx->c_p->common.id);
+		    DTRACE4(dist_port_busy, erts_this_node_sysname,
+			    port_str, remote_str, pid_str);
+		}
+    #endif
+		if (!resume && erts_system_monitor_flags.busy_dist_port)
+		    monitor_generic(ctx->c_p, am_busy_dist_port, cid);
+		retval = ERTS_DSIG_SEND_YIELD;
+	    } else {
+		retval = ERTS_DSIG_SEND_OK;
 	    }
+	    goto done;
 	}
-
-	erts_smp_mtx_unlock(&dep->qlock);
-	erts_schedule_dist_command(NULL, dep);
-	erts_smp_de_runlock(dep);
-	
-	if (resume) {
-	    erts_resume(c_p, ERTS_PROC_LOCK_MAIN);
-	    erts_proclist_destroy(plp);
-	    /*
-	     * Note that the calling process still have to yield as if it
-	     * suspended. If not, the calling process could later be
-	     * erroneously scheduled when it shouldn't be.
-	     */
+	default:
+	    erl_exit(ERTS_ABORT_EXIT, "dsig_send invalid phase (%d)\n", (int)ctx->phase);
 	}
     }
 
-    if (c_p) {
-	int reds;
-	/* 
-	 * Bump reductions on calling process.
-	 *
-	 * This is the reduction cost: Always a base cost of 8 reductions
-	 * plus 16 reductions per kilobyte generated external data.
-	 */
-
-	data_size >>= (10-4);
-#if defined(ARCH_64) && !HALFWORD_HEAP
-	data_size &= 0x003fffffffffffff;
-#elif defined(ARCH_32) || HALFWORD_HEAP
-	data_size &= 0x003fffff;
-#else
-#       error "Ohh come on ... !?!"
-#endif
-	reds = 8 + ((int) data_size > 1000000 ? 1000000 : (int) data_size);
-	BUMP_REDS(c_p, reds);
-    }
-
-    if (suspended) {
-#ifdef USE_VM_PROBES
-        if (!resume && DTRACE_ENABLED(dist_port_busy)) {
-            DTRACE_CHARBUF(port_str, 64);
-            DTRACE_CHARBUF(remote_str, 64);
-            DTRACE_CHARBUF(pid_str, 16);
-
-            erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), "%T", cid);
-            erts_snprintf(remote_str, sizeof(DTRACE_CHARBUF_NAME(remote_str)),
-                          "%T", dep->sysname);
-            erts_snprintf(pid_str, sizeof(DTRACE_CHARBUF_NAME(pid_str)),
-                          "%T", c_p->common.id);
-            DTRACE4(dist_port_busy, erts_this_node_sysname,
-                    port_str, remote_str, pid_str);
-        }
-#endif
-	if (!resume && erts_system_monitor_flags.busy_dist_port)
-	    monitor_generic(c_p, am_busy_dist_port, cid);
-	return ERTS_DSIG_SEND_YIELD;
+done:
+    if (ctx->msg && ctx->c_p) {
+	BUMP_REDS(ctx->c_p, (initial_reds - ctx->reds) / TERM_TO_BINARY_LOOP_FACTOR);
     }
-    return ERTS_DSIG_SEND_OK;
+    return retval;
 }
 
-
 static Uint
 dist_port_command(Port *prt, ErtsDistOutputBuf *obuf)
 {
@@ -3236,11 +3321,7 @@ send_nodes_mon_msg(Process *rp,
     }
 
     ASSERT(hend == hp);
-    erts_queue_message(rp, rp_locksp, bp, msg, NIL
-#ifdef USE_VM_PROBES
-		       , NIL
-#endif
-		       );
+    erts_queue_message(rp, rp_locksp, bp, msg, NIL);
 }
 
 static void
diff --git a/erts/emulator/beam/dist.h b/erts/emulator/beam/dist.h
index f32b999198..cd2cc0ef4a 100644
--- a/erts/emulator/beam/dist.h
+++ b/erts/emulator/beam/dist.h
@@ -22,6 +22,7 @@
 
 #include "erl_process.h"
 #include "erl_node_tables.h"
+#include "zlib.h"
 
 #define DFLAG_PUBLISHED           0x01
 #define DFLAG_ATOM_CACHE          0x02
@@ -264,17 +265,105 @@ erts_destroy_dist_link(ErtsDistLinkData *dldp)
 
 #endif
 
+
+
+/* Define for testing */
+/* #define EXTREME_TTB_TRAPPING 1 */
+
+#ifndef EXTREME_TTB_TRAPPING
+#define TERM_TO_BINARY_LOOP_FACTOR 32
+#else
+#define TERM_TO_BINARY_LOOP_FACTOR 1
+#endif
+
+typedef enum { TTBSize, TTBEncode, TTBCompress } TTBState;
+typedef struct TTBSizeContext_ {
+    Uint flags;
+    int level;
+    Uint result;
+    Eterm obj;
+    ErtsWStack wstack;
+} TTBSizeContext;
+
+typedef struct TTBEncodeContext_ {
+    Uint flags;
+    int level;
+    byte* ep;
+    Eterm obj;
+    ErtsWStack wstack;
+    Binary *result_bin;
+} TTBEncodeContext;
+
+typedef struct {
+    Uint real_size;
+    Uint dest_len;
+    byte *dbytes;
+    Binary *result_bin;
+    Binary *destination_bin;
+    z_stream stream;
+} TTBCompressContext;
+
+typedef struct {
+    int alive;
+    TTBState state;
+    union {
+	TTBSizeContext sc;
+	TTBEncodeContext ec;
+	TTBCompressContext cc;
+    } s;
+} TTBContext;
+
+enum erts_dsig_send_phase {
+    ERTS_DSIG_SEND_PHASE_INIT,
+    ERTS_DSIG_SEND_PHASE_MSG_SIZE,
+    ERTS_DSIG_SEND_PHASE_ALLOC,
+    ERTS_DSIG_SEND_PHASE_MSG_ENCODE,
+    ERTS_DSIG_SEND_PHASE_FIN
+};
+
+struct erts_dsig_send_context {
+    enum erts_dsig_send_phase phase;
+    Sint reds;
+
+    Eterm ctl;
+    Eterm msg;
+    int force_busy;
+    Uint32 pass_through_size;
+    Uint data_size, dhdr_ext_size;
+    ErtsAtomCacheMap *acmp;
+    ErtsDistOutputBuf *obuf;
+    Uint32 flags;
+    Process *c_p;
+    union {
+	TTBSizeContext sc;
+	TTBEncodeContext ec;
+    }u;
+};
+
+typedef struct {
+    int suspend;
+
+    Eterm ctl_heap[6];
+    ErtsDSigData dsd;
+    DistEntry* dep_to_deref;
+    struct erts_dsig_send_context dss;
+
+    Eterm return_term;
+}ErtsSendContext;
+
+
 /*
  * erts_dsig_send_* return values.
  */
 #define ERTS_DSIG_SEND_OK	0
 #define ERTS_DSIG_SEND_YIELD	1
+#define ERTS_DSIG_SEND_CONTINUE 2
 
 extern int erts_dsig_send_link(ErtsDSigData *, Eterm, Eterm);
-extern int erts_dsig_send_msg(ErtsDSigData *, Eterm, Eterm);
+extern int erts_dsig_send_msg(Eterm, Eterm, ErtsSendContext*);
 extern int erts_dsig_send_exit_tt(ErtsDSigData *, Eterm, Eterm, Eterm, Eterm);
 extern int erts_dsig_send_unlink(ErtsDSigData *, Eterm, Eterm);
-extern int erts_dsig_send_reg_msg(ErtsDSigData *, Eterm, Eterm);
+extern int erts_dsig_send_reg_msg(Eterm, Eterm, ErtsSendContext*);
 extern int erts_dsig_send_group_leader(ErtsDSigData *, Eterm, Eterm);
 extern int erts_dsig_send_exit(ErtsDSigData *, Eterm, Eterm, Eterm);
 extern int erts_dsig_send_exit2(ErtsDSigData *, Eterm, Eterm, Eterm);
@@ -282,6 +371,10 @@ extern int erts_dsig_send_demonitor(ErtsDSigData *, Eterm, Eterm, Eterm, int);
 extern int erts_dsig_send_monitor(ErtsDSigData *, Eterm, Eterm, Eterm);
 extern int erts_dsig_send_m_exit(ErtsDSigData *, Eterm, Eterm, Eterm, Eterm);
 
+extern int erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx);
+extern void erts_dsend_context_dtor(Binary*);
+extern Eterm erts_dsend_export_trap_context(Process* p, ErtsSendContext* ctx);
+
 extern int erts_dist_command(Port *prt, int reds);
 extern void erts_dist_port_not_busy(Port *prt);
 extern void erts_kill_dist_connection(DistEntry *dep, Uint32);
diff --git a/erts/emulator/beam/erl_alloc.c b/erts/emulator/beam/erl_alloc.c
index 90cd227fae..dcae5509ec 100644
--- a/erts/emulator/beam/erl_alloc.c
+++ b/erts/emulator/beam/erl_alloc.c
@@ -39,7 +39,7 @@
 #include "erl_instrument.h"
 #include "erl_mseg.h"
 #include "erl_monitors.h"
-#include "erl_bif_timer.h"
+#include "erl_hl_timer.h"
 #include "erl_cpu_topology.h"
 #include "erl_thr_queue.h"
 #if defined(ERTS_ALC_T_DRV_SEL_D_STATE) || defined(ERTS_ALC_T_DRV_EV_D_STATE)
@@ -575,6 +575,15 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop)
     fix_type_sizes[ERTS_ALC_FIX_TYPE_IX(ERTS_ALC_T_THR_Q_EL_SL)]
 	= sizeof(ErtsThrQElement_t);
 #endif
+    fix_type_sizes[ERTS_ALC_FIX_TYPE_IX(ERTS_ALC_T_LL_PTIMER)]
+	= erts_timer_type_size(ERTS_ALC_T_LL_PTIMER);
+    fix_type_sizes[ERTS_ALC_FIX_TYPE_IX(ERTS_ALC_T_HL_PTIMER)]
+	= erts_timer_type_size(ERTS_ALC_T_HL_PTIMER);
+    fix_type_sizes[ERTS_ALC_FIX_TYPE_IX(ERTS_ALC_T_BIF_TIMER)]
+	= erts_timer_type_size(ERTS_ALC_T_BIF_TIMER);
+    fix_type_sizes[ERTS_ALC_FIX_TYPE_IX(ERTS_ALC_T_ABIF_TIMER)]
+	= erts_timer_type_size(ERTS_ALC_T_ABIF_TIMER);
+
 #ifdef HARD_DEBUG
     hdbg_init();
 #endif
@@ -2322,6 +2331,22 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg)
 		       &size.processes_used,
 		       fi,
 		       ERTS_ALC_T_MSG_REF);
+	add_fix_values(&size.processes,
+		       &size.processes_used,
+		       fi,
+		       ERTS_ALC_T_LL_PTIMER);
+	add_fix_values(&size.processes,
+		       &size.processes_used,
+		       fi,
+		       ERTS_ALC_T_HL_PTIMER);
+	add_fix_values(&size.processes,
+		       &size.processes_used,
+		       fi,
+		       ERTS_ALC_T_BIF_TIMER);
+	add_fix_values(&size.processes,
+		       &size.processes_used,
+		       fi,
+		       ERTS_ALC_T_ABIF_TIMER);
     }
 
     if (want.atom || want.atom_used) {
@@ -3180,17 +3205,13 @@ reply_alloc_info(void *vair)
 	HRelease(rp, hp_end, hp);	    
     }
 
-    erts_queue_message(rp, &rp_locks, bp, msg, NIL
-#ifdef USE_VM_PROBES
-		       , NIL
-#endif
-		       );
+    erts_queue_message(rp, &rp_locks, bp, msg, NIL);
 
     if (air->req_sched == sched_id)
 	rp_locks &= ~ERTS_PROC_LOCK_MAIN;
  
     erts_smp_proc_unlock(rp, rp_locks);
-    erts_smp_proc_dec_refc(rp);
+    erts_proc_dec_refc(rp);
 
     if (erts_smp_atomic32_dec_read_nob(&air->refc) == 0)
 	aireq_free(air);
@@ -3264,7 +3285,7 @@ erts_request_alloc_info(struct process *c_p,
     erts_smp_atomic32_init_nob(&air->refc,
 			       (erts_aint32_t) erts_no_schedulers);
 
-    erts_smp_proc_add_refc(c_p, (Sint32) erts_no_schedulers);
+    erts_proc_add_refc(c_p, (Sint) erts_no_schedulers);
 
 #ifdef ERTS_SMP
     if (erts_no_schedulers > 1)
@@ -3939,7 +3960,7 @@ static Uint
 install_debug_functions(void)
 {
     int i;
-    ASSERT(sizeof(erts_allctrs) == sizeof(real_allctrs));
+    ERTS_CT_ASSERT(sizeof(erts_allctrs) == sizeof(real_allctrs));
 
     sys_memcpy((void *)real_allctrs,(void *)erts_allctrs,sizeof(erts_allctrs));
 
diff --git a/erts/emulator/beam/erl_alloc.types b/erts/emulator/beam/erl_alloc.types
index 21434eb117..57c506458c 100644
--- a/erts/emulator/beam/erl_alloc.types
+++ b/erts/emulator/beam/erl_alloc.types
@@ -163,9 +163,13 @@ type	MSG_ROOTS	TEMPORARY	PROCESSES	msg_roots
 type	ROOTSET		TEMPORARY	PROCESSES	root_set
 type	LOADER_TMP	TEMPORARY	CODE		loader_tmp
 type	PREPARED_CODE	SHORT_LIVED	CODE		prepared_code
-type	BIF_TIMER_TABLE	LONG_LIVED	SYSTEM		bif_timer_table
-type	SL_BIF_TIMER	SHORT_LIVED	PROCESSES	bif_timer_sl
-type	LL_BIF_TIMER	STANDARD	PROCESSES	bif_timer_ll
+type	TIMER_SERVICE	LONG_LIVED	SYSTEM		timer_service
+type    LL_PTIMER	FIXED_SIZE	PROCESSES	ll_ptimer
+type    HL_PTIMER	FIXED_SIZE	PROCESSES	hl_ptimer
+type    BIF_TIMER	FIXED_SIZE	PROCESSES	bif_timer
+type    ABIF_TIMER	FIXED_SIZE	PROCESSES	accessor_bif_timer
+type    TIMER_REQUEST	SHORT_LIVED	PROCESSES	timer_request
+type    BTM_YIELD_STATE	SHORT_LIVED	PROCESSES	btm_yield_state
 type	REG_TABLE	STANDARD	SYSTEM		reg_tab
 type	FUN_TABLE	STANDARD	CODE		fun_tab
 type	DIST_TABLE	STANDARD	SYSTEM		dist_tab
@@ -269,6 +273,7 @@ type    BUSY_CALLER_TAB	SHORT_LIVED	SYSTEM		busy_caller_table
 type    BUSY_CALLER	SHORT_LIVED	SYSTEM		busy_caller
 type	PROC_SYS_TSK	SHORT_LIVED	PROCESSES	proc_sys_task
 type	PROC_SYS_TSK_QS	SHORT_LIVED	PROCESSES	proc_sys_task_queues
+type    NEW_TIME_OFFSET	SHORT_LIVED	SYSTEM		new_time_offset
 
 +if threads_no_smp
 # Need thread safe allocs, but std_alloc and fix_alloc are not;
@@ -323,8 +328,6 @@ type	ACTIVE_PROCS	STANDARD	PROCESSES	active_procs
 +endif
 
 +if smp
-type	SL_PTIMER	SHORT_LIVED	SYSTEM		ptimer_sl
-type	LL_PTIMER	STANDARD	SYSTEM		ptimer_ll
 type	SYS_MSG_Q	SHORT_LIVED	PROCESSES	system_messages_queue
 type	FP_EXCEPTION	LONG_LIVED	SYSTEM		fp_exception
 type	LL_MPATHS	LONG_LIVED	SYSTEM		ll_migration_paths
@@ -415,6 +418,13 @@ type	CS_PROG_PATH	LONG_LIVED	SYSTEM		cs_prog_path
 type	ENVIRONMENT	TEMPORARY	SYSTEM		environment
 type	PUTENV_STR	SYSTEM		SYSTEM		putenv_string
 type	PRT_REP_EXIT	STANDARD	SYSTEM		port_report_exit
+type	SYS_BLOCKING	STANDARD	SYSTEM		sys_blocking
+
++if smp
+type	SYS_WRITE_BUF	TEMPORARY	SYSTEM		sys_write_buf
++else
+type	SYS_WRITE_BUF	BINARY		SYSTEM		sys_write_buf
++endif
 
 +endif
 
diff --git a/erts/emulator/beam/erl_alloc_util.c b/erts/emulator/beam/erl_alloc_util.c
index e3172dc4fb..b92533f228 100644
--- a/erts/emulator/beam/erl_alloc_util.c
+++ b/erts/emulator/beam/erl_alloc_util.c
@@ -718,7 +718,7 @@ static void make_name_atoms(Allctr_t *allctr);
 static Block_t *create_carrier(Allctr_t *, Uint, UWord);
 static void destroy_carrier(Allctr_t *, Block_t *, Carrier_t **);
 static void mbc_free(Allctr_t *allctr, void *p, Carrier_t **busy_pcrr_pp);
-static void dealloc_block(Allctr_t *, void *, int);
+static void dealloc_block(Allctr_t *, void *, ErtsAlcFixList_t *, int);
 
 /* internal data... */
 
@@ -1067,17 +1067,21 @@ typedef struct {
 } ErtsAllctrFixDDBlock_t;
 #endif
 
+#define ERTS_ALC_FIX_NO_UNUSE (((ErtsAlcType_t) 1) << ERTS_ALC_N_BITS)
+
 static ERTS_INLINE void
 dealloc_fix_block(Allctr_t *allctr,
 		  ErtsAlcType_t type,
 		  void *ptr,
+		  ErtsAlcFixList_t *fix,
 		  int dec_cc_on_redirect)
 {
 #ifdef ERTS_SMP
     /* May be redirected... */
-    ((ErtsAllctrFixDDBlock_t *) ptr)->fix_type = type;
+    ASSERT((type & ERTS_ALC_FIX_NO_UNUSE) == 0);
+    ((ErtsAllctrFixDDBlock_t *) ptr)->fix_type = type | ERTS_ALC_FIX_NO_UNUSE;
 #endif
-    dealloc_block(allctr, ptr, dec_cc_on_redirect);
+    dealloc_block(allctr, ptr, fix, dec_cc_on_redirect);
 }
 
 static ERTS_INLINE void
@@ -1123,8 +1127,7 @@ fix_cpool_check_shrink(Allctr_t *allctr,
 	    if (fix->u.cpool.min_list_size > fix->list_size)
 		fix->u.cpool.min_list_size = fix->list_size;
 
-	    fix->u.cpool.allocated--;
-	    dealloc_fix_block(allctr, type, p, 0);
+	    dealloc_fix_block(allctr, type, p, fix, 0);
 	}
     }
 }
@@ -1170,7 +1173,8 @@ static ERTS_INLINE void
 fix_cpool_free(Allctr_t *allctr,
 	       ErtsAlcType_t type,
 	       void *p,
-	       Carrier_t **busy_pcrr_pp)
+	       Carrier_t **busy_pcrr_pp,
+	       int unuse)
 {
     ErtsAlcFixList_t *fix;
 
@@ -1178,8 +1182,9 @@ fix_cpool_free(Allctr_t *allctr,
 	   && type <= ERTS_ALC_N_MAX_A_FIXED_SIZE);
 
     fix = &allctr->fix[type - ERTS_ALC_N_MIN_A_FIXED_SIZE];
-    
-    fix->u.cpool.used--;
+
+    if (unuse)
+	fix->u.cpool.used--;
 
     if ((!busy_pcrr_pp || !*busy_pcrr_pp)
 	&& !fix->u.cpool.shrink_list
@@ -1237,8 +1242,7 @@ fix_cpool_alloc_shrink(Allctr_t *allctr, erts_aint32_t flgs)
 	    fix->list = *((void **) ptr);
 	    fix->list_size--;
 	    fix->u.cpool.shrink_list--;
-	    fix->u.cpool.allocated--;
-	    dealloc_fix_block(allctr, type, ptr, 0);
+	    dealloc_fix_block(allctr, type, ptr, fix, 0);
 	}
 	if (fix->u.cpool.min_list_size > fix->list_size)
 	    fix->u.cpool.min_list_size = fix->list_size;
@@ -1399,7 +1403,7 @@ fix_nocpool_alloc_shrink(Allctr_t *allctr, erts_aint32_t flgs)
 	    ptr = fix->list;
 	    fix->list = *((void **) ptr);
 	    fix->list_size--;
-	    dealloc_block(allctr, ptr, 0);
+	    dealloc_block(allctr, ptr, NULL, 0);
 	    fix->u.nocpool.allocated--;
 	}
 	if (fix->list_size != 0) {
@@ -1442,7 +1446,7 @@ get_pref_allctr(void *extra)
 
     pref_ix = ERTS_ALC_GET_THR_IX();
 
-    ASSERT(sizeof(UWord) == sizeof(Allctr_t *));
+    ERTS_CT_ASSERT(sizeof(UWord) == sizeof(Allctr_t *));
     ASSERT(0 <= pref_ix && pref_ix < tspec->size);
 
     return tspec->allctr[pref_ix];
@@ -1746,11 +1750,13 @@ handle_delayed_fix_dealloc(Allctr_t *allctr, void *ptr)
 
     type = ((ErtsAllctrFixDDBlock_t *) ptr)->fix_type;
 
-    ASSERT(ERTS_ALC_N_MIN_A_FIXED_SIZE <= type
-	   && type <= ERTS_ALC_N_MAX_A_FIXED_SIZE);
+    ASSERT(ERTS_ALC_N_MIN_A_FIXED_SIZE
+	   <= (type & ~ERTS_ALC_FIX_NO_UNUSE));
+    ASSERT((type & ~ERTS_ALC_FIX_NO_UNUSE)
+	   <= ERTS_ALC_N_MAX_A_FIXED_SIZE);
 
     if (!ERTS_ALC_IS_CPOOL_ENABLED(allctr))
-	fix_nocpool_free(allctr, type, ptr);
+	fix_nocpool_free(allctr, (type & ~ERTS_ALC_FIX_NO_UNUSE), ptr);
     else {
 	Block_t *blk = UMEM2BLK(ptr);
 	Carrier_t *busy_pcrr_p;
@@ -1765,7 +1771,9 @@ handle_delayed_fix_dealloc(Allctr_t *allctr, void *ptr)
 				      NULL, &busy_pcrr_p);
 	if (used_allctr == allctr) {
 	doit:
-	    fix_cpool_free(allctr, type, ptr, &busy_pcrr_p);
+	    fix_cpool_free(allctr, (type & ~ERTS_ALC_FIX_NO_UNUSE),
+			   ptr, &busy_pcrr_p,
+			   !(type & ERTS_ALC_FIX_NO_UNUSE));
 	    clear_busy_pool_carrier(allctr, busy_pcrr_p);
 	}
 	else {
@@ -1861,7 +1869,7 @@ handle_delayed_dealloc(Allctr_t *allctr,
 	      * if this carrier is pulled from dc_list by cpool_fetch()
 	      */
 	    ERTS_ALC_CPOOL_ASSERT(FBLK_TO_MBC(blk) != crr);
-	    ERTS_ALC_CPOOL_ASSERT(sizeof(ErtsAllctrDDBlock_t) == sizeof(void*));
+	    ERTS_CT_ASSERT(sizeof(ErtsAllctrDDBlock_t) == sizeof(void*));
 #ifdef MBC_ABLK_OFFSET_BITS
 	    blk->u.carrier = crr;
 #else
@@ -1885,7 +1893,7 @@ handle_delayed_dealloc(Allctr_t *allctr,
 	    if (fix)
 		handle_delayed_fix_dealloc(allctr, ptr);
 	    else
-		dealloc_block(allctr, ptr, 1);
+		dealloc_block(allctr, ptr, NULL, 1);
 	}
     }
 
@@ -1991,15 +1999,24 @@ erts_alcu_check_delayed_dealloc(Allctr_t *allctr,
 			   ERTS_ALCU_DD_OPS_LIM_LOW, NULL, NULL, NULL)
 
 static void
-dealloc_block(Allctr_t *allctr, void *ptr, int dec_cc_on_redirect)
+dealloc_block(Allctr_t *allctr, void *ptr, ErtsAlcFixList_t *fix, int dec_cc_on_redirect)
 {
     Block_t *blk = UMEM2BLK(ptr);
 
     ERTS_SMP_LC_ASSERT(!allctr->thread_safe
 		       || erts_lc_mtx_is_locked(&allctr->mutex));
 
-    if (IS_SBC_BLK(blk))
+    if (IS_SBC_BLK(blk)) {
 	destroy_carrier(allctr, blk, NULL);
+#ifdef ERTS_SMP
+	if (fix && ERTS_ALC_IS_CPOOL_ENABLED(allctr)) {
+	    ErtsAlcType_t type = ((ErtsAllctrFixDDBlock_t *) ptr)->fix_type;
+	    if (!(type & ERTS_ALC_FIX_NO_UNUSE))
+		fix->u.cpool.used--;
+	    fix->u.cpool.allocated--;
+	}
+#endif
+    }
 #ifndef ERTS_SMP
     else
 	mbc_free(allctr, ptr, NULL);
@@ -2012,6 +2029,12 @@ dealloc_block(Allctr_t *allctr, void *ptr, int dec_cc_on_redirect)
 	used_allctr = get_used_allctr(allctr, ERTS_ALC_TS_PREF_LOCK_NO, ptr,
 				      NULL, &busy_pcrr_p);
 	if (used_allctr == allctr) {
+	    if (fix) {
+		ErtsAlcType_t type = ((ErtsAllctrFixDDBlock_t *) ptr)->fix_type;
+		if (!(type & ERTS_ALC_FIX_NO_UNUSE))
+		    fix->u.cpool.used--;
+		fix->u.cpool.allocated--;
+	    }
 	    mbc_free(allctr, ptr, &busy_pcrr_p);
 	    clear_busy_pool_carrier(allctr, busy_pcrr_p);
 	}
@@ -5215,7 +5238,7 @@ do_erts_alcu_free(ErtsAlcType_t type, void *extra, void *p,
 
 	if (allctr->fix) {
 	    if (ERTS_ALC_IS_CPOOL_ENABLED(allctr))
-		fix_cpool_free(allctr, type, p, busy_pcrr_pp);
+		fix_cpool_free(allctr, type, p, busy_pcrr_pp, 1);
 	    else
 		fix_nocpool_free(allctr, type, p);
 	}
@@ -5942,7 +5965,7 @@ erts_alcu_init(AlcUInit_t *init)
 	erts_atomic_init_nob(&sentinel->prev, (erts_aint_t) sentinel);
     }
 #endif
-    ASSERT(SBC_BLK_SZ_MASK == MBC_FBLK_SZ_MASK); /* see BLK_SZ */
+    ERTS_CT_ASSERT(SBC_BLK_SZ_MASK == MBC_FBLK_SZ_MASK); /* see BLK_SZ */
 #if HAVE_ERTS_MSEG
     ASSERT(erts_mseg_unit_size() == ERTS_SACRR_UNIT_SZ);
     max_mseg_carriers = init->mmc;
diff --git a/erts/emulator/beam/erl_arith.c b/erts/emulator/beam/erl_arith.c
index 5150a8a507..47d516534f 100644
--- a/erts/emulator/beam/erl_arith.c
+++ b/erts/emulator/beam/erl_arith.c
@@ -2048,3 +2048,8 @@ Eterm erts_gc_bnot(Process* p, Eterm* reg, Uint live)
     }
     return result;
 } 
+
+/* Needed to remove compiler optimization */
+double erts_get_positive_zero_float() {
+    return 0.0f;
+}
diff --git a/erts/emulator/beam/erl_async.c b/erts/emulator/beam/erl_async.c
index decae6b2ca..bc06d41720 100644
--- a/erts/emulator/beam/erl_async.c
+++ b/erts/emulator/beam/erl_async.c
@@ -176,7 +176,7 @@ erts_init_async(void)
 	ErtsThrQInit_t qinit = ERTS_THR_Q_INIT_DEFAULT;
 #endif
 	erts_thr_opts_t thr_opts = ERTS_THR_OPTS_DEFAULT_INITER;
-	char *ptr;
+	char *ptr, thr_name[16];
 	size_t tot_size = 0;
 	int i;
 
@@ -227,23 +227,16 @@ erts_init_async(void)
 	thr_opts.suggested_stack_size
 	    = erts_async_thread_suggested_stack_size;
 
-#ifdef ETHR_HAVE_THREAD_NAMES
-	thr_opts.name = malloc(sizeof(char)*(strlen("async_XXXX")+1));
-#endif
+	thr_opts.name = thr_name;
 
 	for (i = 0; i < erts_async_max_threads; i++) {
 	    ErtsAsyncQ *aq = async_q(i);
 
-#ifdef ETHR_HAVE_THREAD_NAMES
-            sprintf(thr_opts.name, "async_%d", i+1);
-#endif
+            erts_snprintf(thr_opts.name, 16, "async_%d", i+1);
 
 	    erts_thr_create(&aq->thr_id, async_main, (void*) aq, &thr_opts);
 	}
 
-#ifdef ETHR_HAVE_THREAD_NAMES
-	free(thr_opts.name);
-#endif
 	/* Wait for async threads to initialize... */
 
 	erts_mtx_lock(&async->init.data.mtx);
diff --git a/erts/emulator/beam/erl_bif_binary.c b/erts/emulator/beam/erl_bif_binary.c
index 3bf78adce7..934904d58e 100644
--- a/erts/emulator/beam/erl_bif_binary.c
+++ b/erts/emulator/beam/erl_bif_binary.c
@@ -32,10 +32,13 @@
 #include "global.h"
 #include "erl_process.h"
 #include "error.h"
+#define ERL_WANT_HIPE_BIF_WRAPPER__
 #include "bif.h"
+#undef ERL_WANT_HIPE_BIF_WRAPPER__
 #include "big.h"
 #include "erl_binary.h"
 #include "erl_bits.h"
+#include "erl_bif_unique.h"
 
 
 /*
@@ -2424,8 +2427,6 @@ static BIF_RETTYPE do_binary_copy(Process *p, Eterm bin, Eterm en)
 	}
 	cbs->result = erts_bin_nrml_alloc(target_size); /* Always offheap
 							   if trapping */
-	cbs->result->flags = 0;
-	cbs->result->orig_size = target_size;
 	erts_refc_init(&(cbs->result->refc), 1);
 	t = (byte *) cbs->result->orig_bytes; /* No offset or anything */
 	pos = 0;
diff --git a/erts/emulator/beam/erl_bif_ddll.c b/erts/emulator/beam/erl_bif_ddll.c
index 56cd2ba04f..7b35edc9c4 100644
--- a/erts/emulator/beam/erl_bif_ddll.c
+++ b/erts/emulator/beam/erl_bif_ddll.c
@@ -45,6 +45,7 @@
 #include "big.h"
 #include "dist.h"
 #include "erl_version.h"
+#include "erl_bif_unique.h"
 #include "dtrace-wrapper.h"
 
 #ifdef ERTS_SMP
@@ -1730,11 +1731,7 @@ static void notify_proc(Process *proc, Eterm ref, Eterm driver_name, Eterm type,
 	hp += REF_THING_SIZE;
 	mess = TUPLE5(hp,type,r,am_driver,driver_name,tag);
     }
-    erts_queue_message(proc, &rp_locks, bp, mess, am_undefined
-#ifdef USE_VM_PROBES
-		       , NIL
-#endif
-		       );
+    erts_queue_message(proc, &rp_locks, bp, mess, am_undefined);
     erts_smp_proc_unlock(proc, rp_locks);
     ERTS_SMP_CHK_NO_PROC_LOCKS;
 }
diff --git a/erts/emulator/beam/erl_bif_guard.c b/erts/emulator/beam/erl_bif_guard.c
index bbd8aa31d9..6226ec2d04 100644
--- a/erts/emulator/beam/erl_bif_guard.c
+++ b/erts/emulator/beam/erl_bif_guard.c
@@ -459,23 +459,25 @@ Eterm erts_gc_byte_size_1(Process* p, Eterm* reg, Uint live)
 Eterm erts_gc_map_size_1(Process* p, Eterm* reg, Uint live)
 {
     Eterm arg = reg[live];
-    if (is_map(arg)) {
-	map_t *mp = (map_t*)map_val(arg);
-	Uint size = map_get_size(mp);
-	if (IS_USMALL(0, size)) {
-	    return make_small(size);
-	} else {
-	    Eterm* hp;
-	    if (ERTS_NEED_GC(p, BIG_UINT_HEAP_SIZE)) {
-		erts_garbage_collect(p, BIG_UINT_HEAP_SIZE, reg, live);
-	    }
-	    hp = p->htop;
-	    p->htop += BIG_UINT_HEAP_SIZE;
-	    return uint_to_big(size, hp);
-	}
-    } else {
-	BIF_ERROR(p, BADARG);
-    }
+    if (is_flatmap(arg)) {
+	flatmap_t *mp = (flatmap_t*)flatmap_val(arg);
+        return make_small(flatmap_get_size(mp));
+    } else if (is_hashmap(arg)) {
+        Eterm* hp;
+        Uint size;
+	size = hashmap_size(arg);
+        if (IS_USMALL(0, size)) {
+            return make_small(size);
+        }
+        if (ERTS_NEED_GC(p, BIG_UINT_HEAP_SIZE)) {
+            erts_garbage_collect(p, BIG_UINT_HEAP_SIZE, reg, live);
+        }
+        hp = p->htop;
+        p->htop += BIG_UINT_HEAP_SIZE;
+        return uint_to_big(size, hp);
+    }
+    p->fvalue = arg;
+    BIF_ERROR(p, BADMAP);
 }
 
 Eterm erts_gc_abs_1(Process* p, Eterm* reg, Uint live)
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c
index b90362d82c..f74aea80a7 100644
--- a/erts/emulator/beam/erl_bif_info.c
+++ b/erts/emulator/beam/erl_bif_info.c
@@ -42,6 +42,7 @@
 #include "erl_cpu_topology.h"
 #include "erl_async.h"
 #include "erl_thr_progress.h"
+#include "erl_bif_unique.h"
 #define ERTS_PTAB_WANT_DEBUG_FUNCS__
 #include "erl_ptab.h"
 #ifdef HIPE
@@ -116,6 +117,9 @@ static char erts_system_version[] = ("Erlang/OTP " ERLANG_OTP_RELEASE
 #ifdef ERTS_ENABLE_LOCK_COUNT
 				     " [lock-counting]"
 #endif
+#ifdef ERTS_OPCODE_COUNTER_SUPPORT
+				     " [instruction-counting]"
+#endif
 #ifdef PURIFY
 				     " [purify-compiled]"
 #endif	
@@ -537,6 +541,7 @@ pi_locks(Eterm info)
     switch (info) {
     case am_status:
     case am_priority:
+    case am_trap_exit:
 	return ERTS_PROC_LOCK_STATUS;
     case am_links:
     case am_monitors:
@@ -589,7 +594,7 @@ static Eterm pi_args[] = {
     am_min_bin_vheap_size,
     am_current_location,
     am_current_stacktrace,
-};    
+};
 
 #define ERTS_PI_ARGS ((int) (sizeof(pi_args)/sizeof(Eterm)))
 
@@ -1049,9 +1054,9 @@ process_info_aux(Process *BIF_P,
     case am_initial_call:
 	hp = HAlloc(BIF_P, 3+4);
 	res = TUPLE3(hp,
-		     rp->initial[INITIAL_MOD],
-		     rp->initial[INITIAL_FUN],
-		     make_small(rp->initial[INITIAL_ARI]));
+		     rp->u.initial[INITIAL_MOD],
+		     rp->u.initial[INITIAL_FUN],
+		     make_small(rp->u.initial[INITIAL_ARI]));
 	hp += 4;
 	break;
 
@@ -2099,6 +2104,50 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1)
 	BIF_RET(am_opt);
 #endif
 	BIF_RET(res);
+    } else if (BIF_ARG_1 == am_time_offset) {
+	switch (erts_time_offset_state()) {
+	case ERTS_TIME_OFFSET_PRELIMINARY: {
+	    ERTS_DECL_AM(preliminary);
+	    BIF_RET(AM_preliminary);
+	}
+	case ERTS_TIME_OFFSET_FINAL: {
+	    ERTS_DECL_AM(final);
+	    BIF_RET(AM_final);
+	}
+	case ERTS_TIME_OFFSET_VOLATILE: {
+	    ERTS_DECL_AM(volatile);
+	    BIF_RET(AM_volatile);
+	}
+	default:
+	    ERTS_INTERNAL_ERROR("Invalid time offset state");
+	}
+    } else if (ERTS_IS_ATOM_STR("os_monotonic_time_source", BIF_ARG_1)) {
+	BIF_RET(erts_monotonic_time_source(BIF_P));
+    } else if (ERTS_IS_ATOM_STR("os_system_time_source", BIF_ARG_1)) {
+	BIF_RET(erts_system_time_source(BIF_P));
+    } else if (ERTS_IS_ATOM_STR("time_correction", BIF_ARG_1)) {
+	BIF_RET(erts_has_time_correction() ? am_true : am_false);
+    } else if (ERTS_IS_ATOM_STR("start_time", BIF_ARG_1)) {
+	BIF_RET(erts_get_monotonic_start_time(BIF_P));
+    } else if (ERTS_IS_ATOM_STR("end_time", BIF_ARG_1)) {
+	BIF_RET(erts_get_monotonic_end_time(BIF_P));
+    } else if (ERTS_IS_ATOM_STR("time_warp_mode", BIF_ARG_1)) {
+	switch (erts_time_warp_mode()) {
+	case ERTS_NO_TIME_WARP_MODE: {
+	    ERTS_DECL_AM(no_time_warp);
+	    BIF_RET(AM_no_time_warp);
+	}
+	case ERTS_SINGLE_TIME_WARP_MODE: {
+	    ERTS_DECL_AM(single_time_warp);
+	    BIF_RET(AM_single_time_warp);
+	}
+	case ERTS_MULTI_TIME_WARP_MODE: {
+	    ERTS_DECL_AM(multi_time_warp);
+	    BIF_RET(AM_multi_time_warp);
+	}
+	default:
+	    ERTS_INTERNAL_ERROR("Invalid time warp mode");
+	}
     } else if (BIF_ARG_1 == am_allocated_areas) {
 	res = erts_allocated_areas(NULL, NULL, BIF_P);
 	BIF_RET(res);
@@ -2301,7 +2350,7 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1)
 	for (i = num_instructions-1; i >= 0; i--) {
 	    res = erts_bld_cons(hpp, hszp,
 				erts_bld_tuple(hpp, hszp, 2,
-					       erts_atom_put(opc[i].name,
+					       erts_atom_put((byte *)opc[i].name,
 							     strlen(opc[i].name),
 							     ERTS_ATOM_ENC_LATIN1,
 							     1),
@@ -2700,9 +2749,11 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1)
         BIF_RET(make_small(erts_db_get_max_tabs()));
     }
     else if (ERTS_IS_ATOM_STR("tolerant_timeofday",BIF_ARG_1)) {
-	BIF_RET(erts_disable_tolerant_timeofday
-		? am_disabled
-		: am_enabled);
+	if (erts_has_time_correction()
+	    && erts_time_offset_state() == ERTS_TIME_OFFSET_FINAL) {
+	    BIF_RET(am_enabled);
+	}
+	BIF_RET(am_disabled);
     }
     else if (ERTS_IS_ATOM_STR("eager_check_io",BIF_ARG_1)) {
 	BIF_RET(erts_eager_check_io ? am_true : am_false);
@@ -3400,6 +3451,29 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1)
         else if (ERTS_IS_ATOM_STR("mmap", BIF_ARG_1)) {
             BIF_RET(erts_mmap_debug_info(BIF_P));
         }
+	else if (ERTS_IS_ATOM_STR("unique_monotonic_integer_state", BIF_ARG_1)) {
+	    BIF_RET(erts_debug_get_unique_monotonic_integer_state(BIF_P));
+	}
+	else if (ERTS_IS_ATOM_STR("min_unique_monotonic_integer", BIF_ARG_1)) {
+	    Sint64 value = erts_get_min_unique_monotonic_integer();
+	    if (IS_SSMALL(value))
+		BIF_RET(make_small(value));
+	    else {
+		Uint hsz = ERTS_SINT64_HEAP_SIZE(value);
+		Eterm *hp = HAlloc(BIF_P, hsz);
+		BIF_RET(erts_sint64_to_big(value, &hp));
+	    }
+	}
+	else if (ERTS_IS_ATOM_STR("min_unique_integer", BIF_ARG_1)) {
+	    Sint64 value = erts_get_min_unique_integer();
+	    if (IS_SSMALL(value))
+		BIF_RET(make_small(value));
+	    else {
+		Uint hsz = ERTS_SINT64_HEAP_SIZE(value);
+		Eterm *hp = HAlloc(BIF_P, hsz);
+		BIF_RET(erts_sint64_to_big(value, &hp));
+	    }
+	}
     }
     else if (is_tuple(BIF_ARG_1)) {
 	Eterm* tp = tuple_val(BIF_ARG_1);
@@ -3594,6 +3668,58 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1)
 
 		BIF_RET(erts_debug_reader_groups_map(BIF_P, (int) groups));
 	    }
+	    else if (ERTS_IS_ATOM_STR("internal_hash", tp[1])) {
+		Uint hash = (Uint) make_internal_hash(tp[2]);
+		Uint hsz = 0;
+		Eterm* hp;
+		erts_bld_uint(NULL, &hsz, hash);
+		hp = HAlloc(BIF_P,hsz);
+		return erts_bld_uint(&hp, NULL, hash);
+	    }
+	    else if (ERTS_IS_ATOM_STR("atom", tp[1])) {
+		Uint ix;
+		if (!term_to_Uint(tp[2], &ix))
+		    BIF_ERROR(BIF_P, BADARG);
+		while (ix >= atom_table_size()) {
+		    char tmp[20];
+		    erts_snprintf(tmp, sizeof(tmp), "am%x", atom_table_size());
+		    erts_atom_put((byte *) tmp, strlen(tmp), ERTS_ATOM_ENC_LATIN1, 1);
+		}
+		return make_atom(ix);
+	    }
+
+	    break;
+	}
+	case 3: {
+	    if (ERTS_IS_ATOM_STR("check_time_config", tp[1])) {
+		int res, time_correction;
+		ErtsTimeWarpMode time_warp_mode;
+		if (tp[2] == am_true)
+		    time_correction = !0;
+		else if (tp[2] == am_false)
+		    time_correction = 0;
+		else
+		    break;
+		if (ERTS_IS_ATOM_STR("no_time_warp", tp[3]))
+		    time_warp_mode = ERTS_NO_TIME_WARP_MODE;
+		else if (ERTS_IS_ATOM_STR("single_time_warp", tp[3]))
+		    time_warp_mode = ERTS_SINGLE_TIME_WARP_MODE;
+		else if (ERTS_IS_ATOM_STR("multi_time_warp", tp[3]))
+		    time_warp_mode = ERTS_MULTI_TIME_WARP_MODE;
+		else
+		    break;
+		res = erts_check_time_adj_support(time_correction,
+						  time_warp_mode);
+		BIF_RET(res ? am_true : am_false);
+	    }
+	    else if (ERTS_IS_ATOM_STR("make_unique_integer", tp[1])) {
+	      Eterm res = erts_debug_make_unique_integer(BIF_P,
+							 tp[2],
+							 tp[3]);
+	      if (is_non_value(res))
+		  break;
+	      BIF_RET(res);
+	    }
 	    break;
 	}
 	default:
@@ -3603,8 +3729,40 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1)
     BIF_ERROR(BIF_P, BADARG);
 }
 
+BIF_RETTYPE erts_internal_is_system_process_1(BIF_ALIST_1)
+{
+    if (is_internal_pid(BIF_ARG_1)) {
+	Process *rp = erts_proc_lookup(BIF_ARG_1);
+	if (rp && (rp->static_flags & ERTS_STC_FLG_SYSTEM_PROC))
+	    BIF_RET(am_true);
+	BIF_RET(am_false);
+    }
+
+    if (is_external_pid(BIF_ARG_1)
+	&& external_pid_dist_entry(BIF_ARG_1) == erts_this_dist_entry) {
+	BIF_RET(am_false);
+    }
+
+    BIF_ERROR(BIF_P, BADARG);
+}
+
+
 static erts_smp_atomic_t hipe_test_reschedule_flag;
 
+#if defined(VALGRIND) && defined(__GNUC__)
+/* Force noinline for valgrind suppression */
+static void broken_halt_test(Eterm bif_arg_2) __attribute__((noinline));
+#endif
+
+static void broken_halt_test(Eterm bif_arg_2)
+{
+    /* Ugly ugly code used by bif_SUITE:erlang_halt/1 */
+#if defined(ERTS_HAVE_TRY_CATCH)
+    erts_get_scheduler_data()->run_queue = NULL;
+#endif
+    erl_exit(ERTS_DUMP_EXIT, "%T", bif_arg_2);
+}
+
 
 BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2)
 {
@@ -3897,6 +4055,13 @@ BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2)
 		}
 	    }
 	}
+        else if (ERTS_IS_ATOM_STR("broken_halt", BIF_ARG_1)) {
+            broken_halt_test(BIF_ARG_2);
+        }
+	else if (ERTS_IS_ATOM_STR("unique_monotonic_integer_state", BIF_ARG_1)) {
+	    int res = erts_debug_set_unique_monotonic_integer_state(BIF_ARG_2);
+	    BIF_RET(res ? am_true : am_false);
+	}
     }
 
     BIF_ERROR(BIF_P, BADARG);
diff --git a/erts/emulator/beam/erl_bif_lists.c b/erts/emulator/beam/erl_bif_lists.c
index 820ed2385d..e006d57124 100644
--- a/erts/emulator/beam/erl_bif_lists.c
+++ b/erts/emulator/beam/erl_bif_lists.c
@@ -390,7 +390,7 @@ keyfind(int Bif, Process* p, Eterm Key, Eterm Pos, Eterm List)
 		Eterm *tuple_ptr = tuple_val(term);
 		if (pos <= arityval(*tuple_ptr)) {
 		    Eterm element = tuple_ptr[pos];
-		    if (CMP(Key, element) == 0) {
+		    if (CMP_EQ(Key, element)) {
 			return term;
 		    }
 		}
diff --git a/erts/emulator/beam/erl_bif_timer.c b/erts/emulator/beam/erl_bif_timer.c
deleted file mode 100644
index 03ac97283c..0000000000
--- a/erts/emulator/beam/erl_bif_timer.c
+++ /dev/null
@@ -1,705 +0,0 @@
-/*
- * %CopyrightBegin%
- *
- * Copyright Ericsson AB 2005-2012. All Rights Reserved.
- *
- * The contents of this file are subject to the Erlang Public License,
- * Version 1.1, (the "License"); you may not use this file except in
- * compliance with the License. You should have received a copy of the
- * Erlang Public License along with this software. If not, it can be
- * retrieved online at http://www.erlang.org/.
- *
- * Software distributed under the License is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- * the License for the specific language governing rights and limitations
- * under the License.
- *
- * %CopyrightEnd%
- */
-
-#ifdef HAVE_CONFIG_H
-#  include "config.h"
-#endif
-
-#include "erl_bif_timer.h"
-#include "global.h"
-#include "bif.h"
-#include "error.h"
-#include "big.h"
-#include "erl_thr_progress.h"
-
-/****************************************************************************
-** BIF Timer support
-****************************************************************************/
-
-#define BTM_FLG_SL_TIMER	(((Uint32) 1) << 0)
-#define BTM_FLG_CANCELED	(((Uint32) 1) << 1)
-#define BTM_FLG_HEAD		(((Uint32) 1) << 2)
-#define BTM_FLG_BYNAME		(((Uint32) 1) << 3)
-#define BTM_FLG_WRAP		(((Uint32) 1) << 4)
-
-struct ErtsBifTimer_ {
-    struct {
-	union {
-	    ErtsBifTimer **head;
-	    ErtsBifTimer *prev;
-	} u;
-	ErtsBifTimer *next;
-    } tab;
-    union {
-	Eterm name;
-	struct {
-	    ErtsBifTimer *prev;
-	    ErtsBifTimer *next;
-	    Process *ess;
-	} proc;
-    } receiver;
-    ErlTimer tm;
-    ErlHeapFragment* bp;
-    Uint32 flags;
-    Eterm message;
-    Uint32 ref_numbers[ERTS_REF_NUMBERS];
-};
-
-#ifdef SMALL_MEMORY
-#define TIMER_HASH_VEC_SZ	3331
-#define BTM_PREALC_SZ		10
-#else
-#define TIMER_HASH_VEC_SZ	10007
-#define BTM_PREALC_SZ		100
-#endif
-static ErtsBifTimer **bif_timer_tab;  
-static Uint no_bif_timers;
-
-
-static erts_smp_rwmtx_t bif_timer_lock;
-
-#define erts_smp_safe_btm_rwlock(P, L) \
-	safe_btm_lock((P), (L), 1)
-#define erts_smp_safe_btm_rlock(P, L) \
-	safe_btm_lock((P), (L), 0)
-#define erts_smp_btm_rwlock() \
-	erts_smp_rwmtx_rwlock(&bif_timer_lock)
-#define erts_smp_btm_tryrwlock() \
-	erts_smp_rwmtx_tryrwlock(&bif_timer_lock)
-#define erts_smp_btm_rwunlock() \
-	erts_smp_rwmtx_rwunlock(&bif_timer_lock)
-#define erts_smp_btm_rlock() \
-	erts_smp_rwmtx_rlock(&bif_timer_lock)
-#define erts_smp_btm_tryrlock() \
-	erts_smp_rwmtx_tryrlock(&bif_timer_lock)
-#define erts_smp_btm_runlock() \
-	erts_smp_rwmtx_runlock(&bif_timer_lock)
-#define erts_smp_btm_lock_init() \
-	erts_smp_rwmtx_init(&bif_timer_lock, "bif_timers")
-
-
-static ERTS_INLINE int
-safe_btm_lock(Process *c_p, ErtsProcLocks c_p_locks, int rw_lock)
-{
-    ASSERT(c_p && c_p_locks);
-#ifdef ERTS_SMP
-    if ((rw_lock ? erts_smp_btm_tryrwlock() : erts_smp_btm_tryrlock()) != EBUSY)
-	return 0;
-    erts_smp_proc_unlock(c_p, c_p_locks);
-    if (rw_lock)
-	erts_smp_btm_rwlock();
-    else
-	erts_smp_btm_rlock();
-    erts_smp_proc_lock(c_p, c_p_locks);
-    if (ERTS_PROC_IS_EXITING(c_p)) {
-	if (rw_lock)
-	    erts_smp_btm_rwunlock();
-	else
-	    erts_smp_btm_runlock();
-	return 1;
-    }
-#endif
-    return 0;
-}
-
-ERTS_SCHED_PREF_PALLOC_IMPL(btm_pre, ErtsBifTimer, BTM_PREALC_SZ)
-
-static ERTS_INLINE int
-get_index(Uint32 *ref_numbers, Uint32 len)
-{
-    Uint32 hash;
-    /* len can potentially be larger than ERTS_REF_NUMBERS
-       if it has visited another node... */
-    if (len > ERTS_REF_NUMBERS)
-	len = ERTS_REF_NUMBERS;
-
-#if ERTS_REF_NUMBERS != 3
-#error "ERTS_REF_NUMBERS changed. Update me..."
-#endif
-    switch (len) {
-    case 3: if (!ref_numbers[2]) len = 2;
-    case 2: if (!ref_numbers[1]) len = 1;
-    default:  break;
-    }
-
-    ASSERT(1 <= len && len <= ERTS_REF_NUMBERS);
-
-    hash = block_hash((byte *) ref_numbers, len * sizeof(Uint32), 0x08d12e65);
-    return (int) (hash % ((Uint32) TIMER_HASH_VEC_SZ));
-}
-
-static Eterm
-create_ref(Uint *hp, Uint32 *ref_numbers, Uint32 len)
-{
-    Uint32 *datap;
-    int i;
-
-
-    if (len > ERTS_MAX_REF_NUMBERS) {
-	/* Such large refs should no be able to appear in the emulator */
-	erl_exit(1, "%s:%d: Internal error\n", __FILE__, __LINE__);
-    }
-
-#if defined(ARCH_64) && !HALFWORD_HEAP
-    hp[0] = make_ref_thing_header(len/2 + 1);
-    datap = (Uint32 *) &hp[1];
-    *(datap++) = len;
-#else
-    hp[0] = make_ref_thing_header(len);
-    datap = (Uint32 *) &hp[1];
-#endif
-
-    for (i = 0; i < len; i++)
-	datap[i] = ref_numbers[i];
-
-    return make_internal_ref(hp);
-}
-
-static int
-eq_non_standard_ref_numbers(Uint32 *rn1, Uint32 len1, Uint32 *rn2, Uint32 len2)
-{
-#if defined(ARCH_64) && !HALFWORD_HEAP
-#define MAX_REF_HEAP_SZ (1+(ERTS_MAX_REF_NUMBERS/2+1))
-#else
-#define MAX_REF_HEAP_SZ (1+ERTS_MAX_REF_NUMBERS)
-#endif
-    DeclareTmpHeapNoproc(r1_hp,(MAX_REF_HEAP_SZ * 2));
-    Eterm *r2_hp = r1_hp +MAX_REF_HEAP_SZ;
-
-    return eq(create_ref(r1_hp, rn1, len1), create_ref(r2_hp, rn2, len2));
-#undef MAX_REF_HEAP_SZ
-}
-
-static ERTS_INLINE int
-eq_ref_numbers(Uint32 *rn1, Uint32 len1, Uint32 *rn2, Uint32 len2)
-{
-    int res;
-    if (len1 != ERTS_REF_NUMBERS || len2 != ERTS_REF_NUMBERS) {
-	/* Can potentially happen, but will never... */
-	return eq_non_standard_ref_numbers(rn1, len1, rn2, len2);
-    }
-
-#if ERTS_REF_NUMBERS != 3
-#error "ERTS_REF_NUMBERS changed. Update me..."
-#endif
-    res = rn1[0] == rn2[0] && rn1[1] == rn2[1] && rn1[2] == rn2[2];
-
-    ASSERT(res
-	   ? eq_non_standard_ref_numbers(rn1, len1, rn2, len2)
-	   : !eq_non_standard_ref_numbers(rn1, len1, rn2, len2));
-
-    return res;
-}
-
-static ERTS_INLINE ErtsBifTimer *
-tab_find(Eterm ref)
-{
-    Uint32 *ref_numbers = internal_ref_numbers(ref);
-    Uint32 ref_numbers_len = internal_ref_no_of_numbers(ref);
-    int ix = get_index(ref_numbers, ref_numbers_len);
-    ErtsBifTimer* btm;
-
-    for (btm = bif_timer_tab[ix]; btm; btm = btm->tab.next)
-	if (eq_ref_numbers(ref_numbers, ref_numbers_len,
-			   btm->ref_numbers, ERTS_REF_NUMBERS))
-	    return btm;
-    return NULL;
-}
-
-static ERTS_INLINE void
-tab_remove(ErtsBifTimer* btm)
-{
-    if (btm->flags & BTM_FLG_HEAD) {
-	*btm->tab.u.head = btm->tab.next;
-	if (btm->tab.next) {
-	    btm->tab.next->flags |= BTM_FLG_HEAD;
-	    btm->tab.next->tab.u.head = btm->tab.u.head;
-	}
-    }
-    else {
-	btm->tab.u.prev->tab.next = btm->tab.next;
-	if (btm->tab.next)
-	    btm->tab.next->tab.u.prev = btm->tab.u.prev;
-    }
-    btm->flags |= BTM_FLG_CANCELED;
-    ASSERT(no_bif_timers > 0);
-    no_bif_timers--;
-}
-
-static ERTS_INLINE void
-tab_insert(ErtsBifTimer* btm)
-{
-    int ix = get_index(btm->ref_numbers, ERTS_REF_NUMBERS);
-    ErtsBifTimer* btm_list = bif_timer_tab[ix];
-
-    if (btm_list) {
-	btm_list->flags &= ~BTM_FLG_HEAD;
-	btm_list->tab.u.prev = btm;
-    }
-
-    btm->flags |= BTM_FLG_HEAD;
-    btm->tab.u.head = &bif_timer_tab[ix];
-    btm->tab.next = btm_list;
-    bif_timer_tab[ix] = btm;
-    no_bif_timers++;
-}
-
-static ERTS_INLINE void
-link_proc(Process *p, ErtsBifTimer* btm)
-{
-    btm->receiver.proc.ess = p;
-    btm->receiver.proc.prev = NULL;
-    btm->receiver.proc.next = p->u.bif_timers;
-    if (p->u.bif_timers)	
-	p->u.bif_timers->receiver.proc.prev = btm;
-    p->u.bif_timers = btm;
-}
-
-static ERTS_INLINE void
-unlink_proc(ErtsBifTimer* btm)
-{
-    if (btm->receiver.proc.prev)
-	btm->receiver.proc.prev->receiver.proc.next = btm->receiver.proc.next;
-    else
-	btm->receiver.proc.ess->u.bif_timers = btm->receiver.proc.next;
-    if (btm->receiver.proc.next)
-	btm->receiver.proc.next->receiver.proc.prev = btm->receiver.proc.prev;
-}
-
-static void
-bif_timer_cleanup(ErtsBifTimer* btm)
-{
-    ASSERT(btm);
-
-    if (btm->bp)
-	free_message_buffer(btm->bp);
-
-    if (!btm_pre_free(btm)) {
-	if (btm->flags & BTM_FLG_SL_TIMER)
-	    erts_free(ERTS_ALC_T_SL_BIF_TIMER, (void *) btm);
-	else
-	    erts_free(ERTS_ALC_T_LL_BIF_TIMER, (void *) btm);
-    }
-}
-
-static void
-bif_timer_timeout(ErtsBifTimer* btm)
-{
-    ASSERT(btm);
-
-
-    erts_smp_btm_rwlock();
-
-    if (btm->flags & BTM_FLG_CANCELED) {
-    /*
-     * A concurrent cancel is ongoing. Do not send the timeout message,
-     * but cleanup here since the cancel call-back won't be called.
-     */
-#ifndef ERTS_SMP
-	ASSERT(0);
-#endif
-    }
-    else {
-	ErtsProcLocks rp_locks = 0;
-	Process* rp;
-
-	tab_remove(btm);
-
-	ASSERT(!erts_get_current_process());
-
-	if (btm->flags & BTM_FLG_BYNAME)
-	    rp = erts_whereis_process(NULL, 0, btm->receiver.name, 0, 0);
-	else {
-	    rp = btm->receiver.proc.ess;
-	    unlink_proc(btm);
-	}
-
-	if (rp) {
-	    Eterm message;
-	    ErlHeapFragment *bp;
-
-	    bp = btm->bp;
-	    btm->bp = NULL; /* Prevent cleanup of message buffer... */
-
-	    if (!(btm->flags & BTM_FLG_WRAP))
-		message = btm->message;
-	    else {
-#if ERTS_REF_NUMBERS != 3
-#error "ERTS_REF_NUMBERS changed. Update me..."
-#endif
-		Eterm ref;
-		Uint *hp;
-		Uint wrap_size = REF_THING_SIZE + 4;
-		message = btm->message;
-
-		if (!bp) {
-		    ErlOffHeap *ohp;
-		    ASSERT(is_immed(message));
-		    hp = erts_alloc_message_heap(wrap_size,
-						 &bp,
-						 &ohp,
-						 rp,
-						 &rp_locks);
-		} else {
-		    Eterm old_size = bp->used_size;
-		    bp = erts_resize_message_buffer(bp, old_size + wrap_size,
-						    &message, 1);
-		    hp = &bp->mem[0] + old_size;
-		}
-
-		write_ref_thing(hp,
-				btm->ref_numbers[0],
-				btm->ref_numbers[1],
-				btm->ref_numbers[2]);
-		ref = make_internal_ref(hp);
-		hp += REF_THING_SIZE;
-		message = TUPLE3(hp, am_timeout, ref, message);
-	    }
-
-	    erts_queue_message(rp, &rp_locks, bp, message, NIL
-#ifdef USE_VM_PROBES
-			       , NIL
-#endif
-			       );
-	    erts_smp_proc_unlock(rp, rp_locks);
-	}
-    }
-
-    erts_smp_btm_rwunlock();
-
-    bif_timer_cleanup(btm);
-}
-
-static Eterm
-setup_bif_timer(Uint32 xflags,
-		Process *c_p,
-		Eterm time,
-		Eterm receiver,
-		Eterm message)
-{
-    Process *rp;
-    ErtsBifTimer* btm;
-    Uint timeout;
-    Eterm ref;
-    Uint32 *ref_numbers;
-    
-    if (!term_to_Uint(time, &timeout))
-	return THE_NON_VALUE;
-#if defined(ARCH_64) && !HALFWORD_HEAP
-    if ((timeout >> 32) != 0)
-	return THE_NON_VALUE;
-#endif
-    if (is_not_internal_pid(receiver) && is_not_atom(receiver))
-	return THE_NON_VALUE;
-
-    ref = erts_make_ref(c_p);
-
-    if (is_atom(receiver))
-	rp = NULL;
-    else {
-	rp = erts_pid2proc(c_p, ERTS_PROC_LOCK_MAIN,
-			   receiver, ERTS_PROC_LOCK_MSGQ);
-	if (!rp)
-	    return ref;
-    }
-
-    if (timeout < ERTS_ALC_MIN_LONG_LIVED_TIME) {
-	if (timeout < 1000) {
-	    btm = btm_pre_alloc();
-	    if (!btm)
-		goto sl_timer_alloc;
-	    btm->flags = 0;
-	}
-	else {
-	sl_timer_alloc:
-	    btm = (ErtsBifTimer *) erts_alloc(ERTS_ALC_T_SL_BIF_TIMER,
-					      sizeof(ErtsBifTimer));
-	    btm->flags = BTM_FLG_SL_TIMER;
-	}
-    }
-    else {
-	btm = (ErtsBifTimer *) erts_alloc(ERTS_ALC_T_LL_BIF_TIMER,
-					 sizeof(ErtsBifTimer));
-	btm->flags = 0;
-    }
-
-    if (rp) {
-	link_proc(rp, btm);
-	erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_MSGQ);
-    }
-    else {
-	ASSERT(is_atom(receiver));
-	btm->receiver.name = receiver;
-	btm->flags |= BTM_FLG_BYNAME;
-    }
-
-    btm->flags |= xflags;
-
-    ref_numbers = internal_ref_numbers(ref);
-    ASSERT(internal_ref_no_of_numbers(ref) == 3);
-#if ERTS_REF_NUMBERS != 3
-#error "ERTS_REF_NUMBERS changed. Update me..."
-#endif
-    btm->ref_numbers[0] = ref_numbers[0];
-    btm->ref_numbers[1] = ref_numbers[1];
-    btm->ref_numbers[2] = ref_numbers[2];
-
-    ASSERT(eq_ref_numbers(btm->ref_numbers, ERTS_REF_NUMBERS,
-			  ref_numbers, ERTS_REF_NUMBERS));
-
-    if (is_immed(message)) {
-	btm->bp = NULL;
-	btm->message = message;
-    }
-    else {
-	ErlHeapFragment* bp;
-	Eterm* hp;
-	Uint size;
-
-	size = size_object(message);
-	btm->bp = bp = new_message_buffer(size);
-	hp = bp->mem;
-	btm->message = copy_struct(message, size, &hp, &bp->off_heap);
-    }
-
-    tab_insert(btm);
-    ASSERT(btm == tab_find(ref));
-    btm->tm.active = 0; /* MUST be initalized */
-    erts_set_timer(&btm->tm,
-		  (ErlTimeoutProc) bif_timer_timeout,
-		  (ErlCancelProc) bif_timer_cleanup,
-		  (void *) btm,
-		  timeout);
-    return ref;
-}
-
-/* send_after(Time, Pid, Message) -> Ref */
-BIF_RETTYPE send_after_3(BIF_ALIST_3)
-{
-    Eterm res;
-
-    if (erts_smp_safe_btm_rwlock(BIF_P, ERTS_PROC_LOCK_MAIN))
-	ERTS_BIF_EXITED(BIF_P);
-
-    res = setup_bif_timer(0, BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3);
-
-    erts_smp_btm_rwunlock();
-
-    if (is_non_value(res)) {
-	BIF_ERROR(BIF_P, BADARG);
-    }
-    else {
-	ASSERT(is_internal_ref(res));
-	BIF_RET(res);
-    }
-}
-
-/* start_timer(Time, Pid, Message) -> Ref */
-BIF_RETTYPE start_timer_3(BIF_ALIST_3)
-{
-    Eterm res;
-
-    if (erts_smp_safe_btm_rwlock(BIF_P, ERTS_PROC_LOCK_MAIN))
-	ERTS_BIF_EXITED(BIF_P);
-
-    res = setup_bif_timer(BTM_FLG_WRAP, BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3);
-
-    erts_smp_btm_rwunlock();
-
-    if (is_non_value(res)) {
-	BIF_ERROR(BIF_P, BADARG);
-    }
-    else {
-	ASSERT(is_internal_ref(res));
-	BIF_RET(res);
-    }
-}
-
-/* cancel_timer(Ref) -> false | RemainingTime */
-BIF_RETTYPE cancel_timer_1(BIF_ALIST_1)
-{
-    Eterm res;
-    ErtsBifTimer *btm;
-
-    if (is_not_internal_ref(BIF_ARG_1)) {
-	if (is_ref(BIF_ARG_1)) {
-	    BIF_RET(am_false);
-	}
-	BIF_ERROR(BIF_P, BADARG);
-    }
-
-    if (erts_smp_safe_btm_rwlock(BIF_P, ERTS_PROC_LOCK_MAIN))
-	ERTS_BIF_EXITED(BIF_P);
-
-    btm = tab_find(BIF_ARG_1);
-    if (!btm || btm->flags & BTM_FLG_CANCELED) {
-	erts_smp_btm_rwunlock();
-	res = am_false;
-    }
-    else {
-	Uint left = erts_time_left(&btm->tm);
-	if (!(btm->flags & BTM_FLG_BYNAME)) {
-	    erts_smp_proc_lock(btm->receiver.proc.ess, ERTS_PROC_LOCK_MSGQ);
-	    unlink_proc(btm);
-	    erts_smp_proc_unlock(btm->receiver.proc.ess, ERTS_PROC_LOCK_MSGQ);
-	}
-	tab_remove(btm);
-	ASSERT(!tab_find(BIF_ARG_1));
-	erts_cancel_timer(&btm->tm);
-	erts_smp_btm_rwunlock();
-	res = erts_make_integer(left, BIF_P);
-    }
-
-    BIF_RET(res);
-}
-
-/* read_timer(Ref) -> false | RemainingTime */
-BIF_RETTYPE read_timer_1(BIF_ALIST_1)
-{
-    Eterm res;
-    ErtsBifTimer *btm;
-
-    if (is_not_internal_ref(BIF_ARG_1)) {
-	if (is_ref(BIF_ARG_1)) {
-	    BIF_RET(am_false);
-	}
-	BIF_ERROR(BIF_P, BADARG);
-    }
-
-    if (erts_smp_safe_btm_rlock(BIF_P, ERTS_PROC_LOCK_MAIN))
-	ERTS_BIF_EXITED(BIF_P);
-
-    btm = tab_find(BIF_ARG_1);
-    if (!btm || btm->flags & BTM_FLG_CANCELED) {
-	res = am_false;
-    }
-    else {
-	Uint left = erts_time_left(&btm->tm);
-	res = erts_make_integer(left, BIF_P);
-    }
-
-    erts_smp_btm_runlock();
-
-    BIF_RET(res);
-}
-
-void
-erts_print_bif_timer_info(int to, void *to_arg)
-{
-    int i;
-    int lock = !ERTS_IS_CRASH_DUMPING;
-
-    if (lock)
-	erts_smp_btm_rlock();
-
-    for (i = 0; i < TIMER_HASH_VEC_SZ; i++) {
-	ErtsBifTimer *btm;
-	for (btm = bif_timer_tab[i]; btm; btm = btm->tab.next) {
-	    Eterm receiver = (btm->flags & BTM_FLG_BYNAME
-			      ? btm->receiver.name
-			      : btm->receiver.proc.ess->common.id);
-	    erts_print(to, to_arg, "=timer:%T\n", receiver);
-	    erts_print(to, to_arg, "Message: %T\n", btm->message);
-	    erts_print(to, to_arg, "Time left: %u\n",
-		       erts_time_left(&btm->tm));
-	}
-    }
-
-    if (lock)
-	erts_smp_btm_runlock();
-}
-
-
-void
-erts_cancel_bif_timers(Process *p, ErtsProcLocks plocks)
-{
-    ErtsBifTimer *btm;
-
-    if (erts_smp_btm_tryrwlock() == EBUSY) {
-	erts_smp_proc_unlock(p, plocks);
-	erts_smp_btm_rwlock();
-	erts_smp_proc_lock(p, plocks);
-    }
-
-    btm = p->u.bif_timers;
-    while (btm) {
-	ErtsBifTimer *tmp_btm;
-	ASSERT(!(btm->flags & BTM_FLG_CANCELED));
-	tab_remove(btm);
-	tmp_btm = btm;
-	btm = btm->receiver.proc.next;
-	erts_cancel_timer(&tmp_btm->tm);
-    }
-
-    p->u.bif_timers = NULL;
-
-    erts_smp_btm_rwunlock();
-}
-
-void erts_bif_timer_init(void)
-{
-    int i;
-    no_bif_timers = 0;
-    init_btm_pre_alloc();
-    erts_smp_btm_lock_init();
-    bif_timer_tab = erts_alloc(ERTS_ALC_T_BIF_TIMER_TABLE,
-			       sizeof(ErtsBifTimer *)*TIMER_HASH_VEC_SZ);
-    for (i = 0; i < TIMER_HASH_VEC_SZ; ++i)
-	bif_timer_tab[i] = NULL;
-}
-
-Uint
-erts_bif_timer_memory_size(void)
-{
-    Uint res;
-    int lock = !ERTS_IS_CRASH_DUMPING;
-
-    if (lock)
-	erts_smp_btm_rlock();
-
-    res = (sizeof(ErtsBifTimer *)*TIMER_HASH_VEC_SZ
-	   + no_bif_timers*sizeof(ErtsBifTimer));
-
-    if (lock)
-	erts_smp_btm_runlock();
-
-    return res;
-}
-
-
-void
-erts_bif_timer_foreach(void (*func)(Eterm, Eterm, ErlHeapFragment *, void *),
-		       void *arg)
-{
-    int i;
-
-    ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
-
-    for (i = 0; i < TIMER_HASH_VEC_SZ; i++) {
-	ErtsBifTimer *btm;
-	for (btm = bif_timer_tab[i]; btm; btm = btm->tab.next) {
-	    (*func)((btm->flags & BTM_FLG_BYNAME
-		     ? btm->receiver.name
-		     : btm->receiver.proc.ess->common.id),
-		    btm->message,
-		    btm->bp,
-		    arg);
-	}
-    }
-}
diff --git a/erts/emulator/beam/erl_bif_timer.h b/erts/emulator/beam/erl_bif_timer.h
deleted file mode 100644
index 1197c176f5..0000000000
--- a/erts/emulator/beam/erl_bif_timer.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2005-2009. All Rights Reserved.
- * 
- * The contents of this file are subject to the Erlang Public License,
- * Version 1.1, (the "License"); you may not use this file except in
- * compliance with the License. You should have received a copy of the
- * Erlang Public License along with this software. If not, it can be
- * retrieved online at http://www.erlang.org/.
- * 
- * Software distributed under the License is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- * the License for the specific language governing rights and limitations
- * under the License.
- * 
- * %CopyrightEnd%
- */
-
-
-#ifndef ERL_BIF_TIMER_H__
-#define ERL_BIF_TIMER_H__
-
-typedef struct ErtsBifTimer_ ErtsBifTimer;
-
-#include "sys.h"
-#include "erl_process.h"
-#include "erl_message.h"
-
-Uint erts_bif_timer_memory_size(void);
-void erts_print_bif_timer_info(int to, void *to_arg);
-void erts_cancel_bif_timers(Process *p, ErtsProcLocks plocks);
-void erts_bif_timer_init(void);
-void erts_bif_timer_foreach(void (*func)(Eterm,Eterm,ErlHeapFragment *,void *),
-			    void *arg);
-#endif
diff --git a/erts/emulator/beam/erl_bif_trace.c b/erts/emulator/beam/erl_bif_trace.c
index 06fbbea123..13e0160648 100644
--- a/erts/emulator/beam/erl_bif_trace.c
+++ b/erts/emulator/beam/erl_bif_trace.c
@@ -38,6 +38,7 @@
 #include "beam_bp.h"
 #include "erl_binary.h"
 #include "erl_thr_progress.h"
+#include "erl_bif_unique.h"
 
 #define DECL_AM(S) Eterm AM_ ## S = am_atom_put(#S, sizeof(#S) - 1)
 
@@ -358,7 +359,7 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist)
 	ASSERT(finish_bp.stager == NULL);
 	finish_bp.stager = p;
 	erts_schedule_thr_prgr_later_op(smp_bp_finisher, NULL, &finish_bp.lop);
-	erts_smp_proc_inc_refc(p);
+	erts_proc_inc_refc(p);
 	erts_suspend(p, ERTS_PROC_LOCK_MAIN, NULL);
 	ERTS_BIF_YIELD_RETURN(p, make_small(matches));
     }
@@ -392,7 +393,7 @@ static void smp_bp_finisher(void* null)
 	    erts_resume(p, ERTS_PROC_LOCK_STATUS);
 	}
 	erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
-	erts_smp_proc_dec_refc(p);
+	erts_proc_dec_refc(p);
     }
 }
 #endif /* ERTS_SMP */
@@ -651,7 +652,7 @@ Eterm trace_3(BIF_ALIST_3)
 	    if (pid_spec == am_all) {
 		if (on) {
 		    if (!erts_cpu_timestamp) {
-#ifdef HAVE_CLOCK_GETTIME
+#ifdef HAVE_CLOCK_GETTIME_CPU_TIME
 			/* 
 			   Perhaps clock_gettime was found during config
 			   on a different machine than this. We check
@@ -678,7 +679,7 @@ Eterm trace_3(BIF_ALIST_3)
 			if (erts_start_now_cpu() < 0) {
 			    goto error;
 			}
-#endif /* HAVE_CLOCK_GETTIME */
+#endif /* HAVE_CLOCK_GETTIME_CPU_TIME */
 			erts_cpu_timestamp = !0;
 		    }
 		}
diff --git a/erts/emulator/beam/erl_bif_unique.c b/erts/emulator/beam/erl_bif_unique.c
new file mode 100644
index 0000000000..57b0bab72f
--- /dev/null
+++ b/erts/emulator/beam/erl_bif_unique.c
@@ -0,0 +1,556 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2014. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#include "sys.h"
+#include "erl_vm.h"
+#include "erl_alloc.h"
+#include "export.h"
+#include "bif.h"
+#include "erl_bif_unique.h"
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
+ * Reference                                                         *
+\*                                                                   */
+
+static union {
+    erts_atomic64_t count;
+    char align__[ERTS_CACHE_LINE_SIZE];
+} global_reference erts_align_attribute(ERTS_CACHE_LINE_SIZE);
+
+
+/*
+ * ref[0] indicate thread creating reference as follows:
+ *
+ * - ref[0] == 0 => Non-scheduler thread;
+ * - else; ref[0] <= erts_no_schedulers =>
+ *      ordinary scheduler with id == ref[0];
+ * - else; ref[0] <= erts_no_schedulers
+ *                   + erts_no_dirty_cpu_schedulers =>
+ *      dirty cpu scheduler with id == 'ref[0] - erts_no_schedulers';
+ * - else =>
+ *      dirty io scheduler with id == 'ref[0]
+ *                                     - erts_no_schedulers
+ *                                     - erts_no_dirty_cpu_schedulers'
+ */
+
+#ifdef DEBUG
+static Uint32 max_thr_id;
+#endif
+
+static void
+init_reference(void)
+{
+#ifdef DEBUG
+    max_thr_id = (Uint32) erts_no_schedulers;
+#ifdef ERTS_DIRTY_SCHEDULERS
+    max_thr_id += (Uint32) erts_no_dirty_cpu_schedulers;
+    max_thr_id += (Uint32) erts_no_dirty_io_schedulers;
+#endif
+#endif
+    erts_atomic64_init_nob(&global_reference.count, 0);
+}
+
+static ERTS_INLINE void
+global_make_ref_in_array(Uint32 thr_id, Uint32 ref[ERTS_MAX_REF_NUMBERS])
+{
+    Uint64 value;
+
+    value = (Uint64) erts_atomic64_inc_read_mb(&global_reference.count);
+    
+    erts_set_ref_numbers(ref, thr_id, value);
+}
+
+static ERTS_INLINE void
+make_ref_in_array(Uint32 ref[ERTS_MAX_REF_NUMBERS])
+{
+    ErtsSchedulerData *esdp = erts_get_scheduler_data();
+    if (esdp)
+	erts_sched_make_ref_in_array(esdp, ref);
+    else
+	global_make_ref_in_array(0, ref);
+}
+
+void
+erts_make_ref_in_array(Uint32 ref[ERTS_MAX_REF_NUMBERS])
+{
+    make_ref_in_array(ref);
+}
+
+Eterm erts_make_ref_in_buffer(Eterm buffer[REF_THING_SIZE])
+{
+    Eterm* hp = buffer;
+    Uint32 ref[ERTS_MAX_REF_NUMBERS];
+
+    make_ref_in_array(ref);
+    write_ref_thing(hp, ref[0], ref[1], ref[2]);
+    return make_internal_ref(hp);
+}
+
+Eterm erts_make_ref(Process *c_p)
+{
+    Eterm* hp;
+    Uint32 ref[ERTS_MAX_REF_NUMBERS];
+
+    ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN & erts_proc_lc_my_proc_locks(c_p));
+
+    hp = HAlloc(c_p, REF_THING_SIZE);
+
+    make_ref_in_array(ref);
+    write_ref_thing(hp, ref[0], ref[1], ref[2]);
+
+    return make_internal_ref(hp);
+}
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
+ * Unique Integer                                                    *
+\*                                                                   */
+
+static struct {
+    union {
+	struct {
+	    int left_shift;
+	    int right_shift;
+	    Uint64 mask;
+	    Uint64 val0_max;
+	} o;
+	char align__[ERTS_CACHE_LINE_SIZE];
+    } r;
+    union {
+	erts_atomic64_t val1;
+	char align__[ERTS_CACHE_LINE_SIZE];
+    } w;
+} unique_data erts_align_attribute(ERTS_CACHE_LINE_SIZE);
+
+static void
+init_unique_integer(void)
+{
+    int bits;
+    unique_data.r.o.val0_max = (Uint64) erts_no_schedulers;
+#ifdef ERTS_DIRTY_SCHEDULERS
+    unique_data.r.o.val0_max += (Uint64) erts_no_dirty_cpu_schedulers;
+    unique_data.r.o.val0_max += (Uint64) erts_no_dirty_io_schedulers;
+#endif
+    bits = erts_fit_in_bits_int64(unique_data.r.o.val0_max);
+    unique_data.r.o.left_shift = bits;
+    unique_data.r.o.right_shift = 64 - bits;
+    unique_data.r.o.mask = (((Uint64) 1) << bits) - 1;
+    erts_atomic64_init_nob(&unique_data.w.val1, -1);
+}
+
+#define ERTS_MAX_UNIQUE_INT_HEAP_SIZE ERTS_UINT64_ARRAY_TO_BIG_MAX_HEAP_SZ(2)
+
+static ERTS_INLINE Eterm
+bld_unique_integer_term(Eterm **hpp, Uint *szp,
+			Uint64 val0, Uint64 val1,
+			int positive)
+{
+    Uint hsz;
+    Uint64 unique_val[2];
+
+    unique_val[0] = ((Uint64) val0);
+    unique_val[0] |= ((Uint64) val1) << unique_data.r.o.left_shift;
+    unique_val[1] = ((Uint64) val1) >> unique_data.r.o.right_shift;
+    unique_val[1] &= unique_data.r.o.mask;
+
+    if (positive) {
+	unique_val[0]++;
+	if (unique_val[0] == 0)
+	    unique_val[1]++;
+    }
+    else {
+	ASSERT(MIN_SMALL < 0);
+	if (unique_val[1] == 0
+	    && unique_val[0] < ((Uint64) -1*((Sint64) MIN_SMALL))) {
+	    Sint64 s_unique_val = (Sint64) unique_val[0];
+	    s_unique_val += MIN_SMALL;
+	    ASSERT(MIN_SMALL <= s_unique_val && s_unique_val < 0);
+	    if (szp)
+		*szp = 0;
+	    if (!hpp)
+		return THE_NON_VALUE;
+	    return make_small((Sint) s_unique_val);
+	}
+	if (unique_val[0] < ((Uint64) -1*((Sint64) MIN_SMALL))) {
+	    ASSERT(unique_val[1] != 0);
+	    unique_val[1] -= 1;
+	}
+	unique_val[0] += MIN_SMALL;
+    }
+
+    if (!unique_val[1]) {
+	if (unique_val[0] <= MAX_SMALL) {
+	    if (szp)
+		*szp = 0;
+	    if (!hpp)
+		return THE_NON_VALUE;
+	    return make_small((Uint) unique_val[0]);
+	}
+
+	if (szp)
+	    *szp = ERTS_UINT64_HEAP_SIZE(unique_val[0]);
+	if (!hpp)
+	    return THE_NON_VALUE;
+	return erts_uint64_to_big(unique_val[0], hpp);
+    }
+    else {
+	Eterm tmp, *tmp_hp, res;
+	DeclareTmpHeapNoproc(local_heap, 2*ERTS_MAX_UNIQUE_INT_HEAP_SIZE);
+
+	UseTmpHeapNoproc(2*ERTS_MAX_UNIQUE_INT_HEAP_SIZE);
+
+	tmp_hp = local_heap;
+
+	tmp = erts_uint64_array_to_big(&tmp_hp, 0, 2, unique_val);
+	ASSERT(is_big(tmp));
+
+	hsz = big_arity(tmp) + 1;
+
+	ASSERT(hsz <= ERTS_MAX_UNIQUE_INT_HEAP_SIZE);
+
+	if (szp)
+	    *szp = hsz;
+
+	if (!hpp)
+	    res = THE_NON_VALUE;
+	else {
+	    int hix;
+	    Eterm *hp = *hpp;
+	    tmp_hp = big_val(tmp);
+	    for (hix = 0; hix < hsz; hix++)
+		hp[hix] = tmp_hp[hix];
+
+	    *hpp = hp + hsz;
+	    res = make_big(hp);
+	}
+
+	UnUseTmpHeapNoproc(2*ERTS_MAX_UNIQUE_INT_HEAP_SIZE);
+
+	return res;
+    }
+}
+
+static ERTS_INLINE Eterm unique_integer_bif(Process *c_p, int positive)
+{
+    ErtsSchedulerData *esdp;
+    Uint64 thr_id, unique;
+    Uint hsz;
+    Eterm *hp;
+
+    esdp = ERTS_PROC_GET_SCHDATA(c_p);
+    thr_id = (Uint64) esdp->thr_id;
+    unique = esdp->unique++;
+    bld_unique_integer_term(NULL, &hsz, thr_id, unique, positive);
+    hp = hsz ? HAlloc(c_p, hsz) : NULL;
+    return bld_unique_integer_term(&hp, NULL, thr_id, unique, positive);
+}
+
+Uint
+erts_raw_unique_integer_heap_size(Uint64 val[ERTS_UNIQUE_INT_RAW_VALUES])
+{
+    Uint sz;
+    bld_unique_integer_term(NULL, &sz, val[0], val[1], 0);
+    return sz;
+}
+
+Eterm
+erts_raw_make_unique_integer(Eterm **hpp, Uint64 val[ERTS_UNIQUE_INT_RAW_VALUES])
+{
+    return bld_unique_integer_term(hpp, NULL, val[0], val[1], 0);
+}
+
+void
+erts_raw_get_unique_integer(Uint64 val[ERTS_UNIQUE_INT_RAW_VALUES])
+{
+    ErtsSchedulerData *esdp = erts_get_scheduler_data();
+    if (esdp) {
+	val[0] = (Uint64) esdp->thr_id;
+	val[1] = esdp->unique++;
+    }
+    else {
+	val[0] = (Uint64) 0;
+	val[1] = (Uint64) erts_atomic64_inc_read_nob(&unique_data.w.val1);
+    }
+}
+
+
+Sint64
+erts_get_min_unique_integer(void)
+{
+    return (Sint64) MIN_SMALL;
+}
+
+/* --- Debug --- */
+
+Eterm
+erts_debug_make_unique_integer(Process *c_p, Eterm etval0, Eterm etval1)
+{
+    Uint64 val0, val1;
+    Uint hsz;
+    Eterm res, *hp, *end_hp;
+
+    if (!term_to_Uint64(etval0, &val0))
+	return THE_NON_VALUE;
+
+    if (!term_to_Uint64(etval1, &val1))
+	return THE_NON_VALUE;
+
+    bld_unique_integer_term(NULL, &hsz, val0, val1, 0);
+
+    hp = HAlloc(c_p, hsz);
+    end_hp = hp + hsz;
+
+    res = bld_unique_integer_term(&hp, NULL, val0, val1, 0);
+    if (hp != end_hp)
+	ERTS_INTERNAL_ERROR("Heap allocation error");
+
+    return res;
+}
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
+ * Strict Monotonic Counter                                          *
+\*                                                                   */
+
+static struct {
+    union {
+	erts_atomic64_t value;
+	char align__[ERTS_CACHE_LINE_SIZE];
+    } w;
+} raw_unique_monotonic_integer erts_align_attribute(ERTS_CACHE_LINE_SIZE);
+
+#if defined(ARCH_32) || HALFWORD_HEAP
+#  define ERTS_UNIQUE_MONOTONIC_OFFSET ERTS_SINT64_MIN
+#else
+#  define ERTS_UNIQUE_MONOTONIC_OFFSET MIN_SMALL
+#endif
+
+static void
+init_unique_monotonic_integer(void)
+{
+    erts_atomic64_init_nob(&raw_unique_monotonic_integer.w.value,
+			   (erts_aint64_t) -1);
+}
+
+static ERTS_INLINE Uint64
+get_raw_unique_monotonic_integer(void)
+{
+    return (Uint64) erts_atomic64_inc_read_mb(&raw_unique_monotonic_integer.w.value);
+}
+
+static ERTS_INLINE Uint
+get_unique_monotonic_integer_heap_size(Uint64 raw, int positive)
+{
+    if (positive) {
+	Uint64 value = raw+1;
+	return ERTS_UINT64_HEAP_SIZE(value);
+    }
+    else {
+	Sint64 value = ((Sint64) raw) + ERTS_UNIQUE_MONOTONIC_OFFSET;
+	if (IS_SSMALL(value))
+	    return 0;
+#if defined(ARCH_32) || HALFWORD_HEAP
+	return ERTS_SINT64_HEAP_SIZE(value);
+#else
+	return ERTS_UINT64_HEAP_SIZE((Uint64) value);
+#endif
+    }
+}
+
+static ERTS_INLINE Eterm
+make_unique_monotonic_integer_value(Eterm *hp, Uint hsz, Uint64 raw, int positive)
+{
+    Eterm res;
+#ifdef DEBUG
+    Eterm *end_hp = hp + hsz;
+#endif
+
+    if (positive) {
+	Uint64 value = raw+1;
+	res = hsz ? erts_uint64_to_big(value, &hp) : make_small(value);
+    }
+    else {
+	Sint64 value = ((Sint64) raw) + ERTS_UNIQUE_MONOTONIC_OFFSET;
+	if (hsz == 0)
+	    res = make_small(value);
+	else {
+#if defined(ARCH_32) || HALFWORD_HEAP
+	    res = erts_sint64_to_big(value, &hp);
+#else 
+	    res = erts_uint64_to_big((Uint64) value, &hp);
+#endif
+	}
+    }
+
+    ASSERT(end_hp == hp);
+
+    return res;
+}
+
+static ERTS_INLINE Eterm
+unique_monotonic_integer_bif(Process *c_p, int positive)
+{
+    Uint64 raw;
+    Uint hsz;
+    Eterm *hp;
+
+    raw = get_raw_unique_monotonic_integer();
+    hsz = get_unique_monotonic_integer_heap_size(raw, positive);
+    hp = hsz ? HAlloc(c_p, hsz) : NULL;
+    return make_unique_monotonic_integer_value(hp, hsz, raw, positive);
+}
+
+Sint64
+erts_raw_get_unique_monotonic_integer(void)
+{
+    return get_raw_unique_monotonic_integer();
+}
+
+Uint
+erts_raw_unique_monotonic_integer_heap_size(Sint64 raw)
+{
+    return get_unique_monotonic_integer_heap_size(raw, 0);
+}
+
+Eterm
+erts_raw_make_unique_monotonic_integer_value(Eterm **hpp, Sint64 raw)
+{
+    Uint hsz = get_unique_monotonic_integer_heap_size(raw, 0);
+    Eterm res = make_unique_monotonic_integer_value(*hpp, hsz, raw, 0);
+    *hpp += hsz;
+    return res;
+}
+
+Sint64
+erts_get_min_unique_monotonic_integer(void)
+{
+    return ERTS_UNIQUE_MONOTONIC_OFFSET;
+}
+
+/* --- Debug --- */
+
+int
+erts_debug_set_unique_monotonic_integer_state(Eterm et_value)
+{
+    Sint64 value;
+
+    if (!term_to_Sint64(et_value, &value)) {
+	Uint64 uvalue;
+	if (!term_to_Uint64(et_value, &uvalue))
+	    return 0;
+	value = (Sint64) uvalue;
+    }
+
+    erts_atomic64_set_mb(&raw_unique_monotonic_integer.w.value,
+			 (erts_aint64_t) value);
+    return 1;
+}
+
+Eterm
+erts_debug_get_unique_monotonic_integer_state(Process *c_p)
+{
+    Uint64 value;
+    Eterm hsz, *hp;
+
+    value = (Uint64) erts_atomic64_read_mb(&raw_unique_monotonic_integer.w.value);
+
+    if (IS_USMALL(0, value))
+	return make_small(value);
+    hsz = ERTS_UINT64_HEAP_SIZE(value);
+    hp = HAlloc(c_p, hsz);
+    return erts_uint64_to_big(value, &hp);
+}
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
+ * Initilazation                                                     *
+\*                                                                   */
+
+void
+erts_bif_unique_init(void)
+{
+    init_reference();
+    init_unique_monotonic_integer();
+    init_unique_integer();
+}
+
+void
+erts_sched_bif_unique_init(ErtsSchedulerData *esdp)
+{
+    esdp->unique = (Uint64) 0;
+    esdp->ref = (Uint64) 0;
+}
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
+ * The BIFs                                                          *
+\*                                                                   */
+
+
+BIF_RETTYPE make_ref_0(BIF_ALIST_0)
+{
+    BIF_RETTYPE res;
+    Eterm* hp;
+
+    ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN & erts_proc_lc_my_proc_locks(BIF_P));
+
+    hp = HAlloc(BIF_P, REF_THING_SIZE);
+
+    res = erts_sched_make_ref_in_buffer(ERTS_PROC_GET_SCHDATA(BIF_P), hp);
+
+    BIF_RET(res);
+}
+
+BIF_RETTYPE unique_integer_0(BIF_ALIST_0)
+{
+    BIF_RET(unique_integer_bif(BIF_P, 0));
+}
+
+BIF_RETTYPE unique_integer_1(BIF_ALIST_1)
+{
+    Eterm modlist = BIF_ARG_1;
+    int monotonic = 0;
+    int positive = 0;
+    BIF_RETTYPE res;
+
+    while (is_list(modlist)) {
+	Eterm *consp = list_val(modlist);
+	switch (CAR(consp)) {
+	case am_monotonic:
+	    monotonic = 1;
+	    break;
+	case am_positive:
+	    positive = 1;
+	    break;
+	default:
+	    BIF_ERROR(BIF_P, BADARG);
+	}
+	modlist = CDR(consp);
+    }
+
+    if (is_not_nil(modlist))
+	BIF_ERROR(BIF_P, BADARG);
+
+    if (monotonic)
+	res = unique_monotonic_integer_bif(BIF_P, positive);
+    else
+	res = unique_integer_bif(BIF_P, positive);
+
+    BIF_RET(res);
+}
diff --git a/erts/emulator/beam/erl_bif_unique.h b/erts/emulator/beam/erl_bif_unique.h
new file mode 100644
index 0000000000..cd001172a1
--- /dev/null
+++ b/erts/emulator/beam/erl_bif_unique.h
@@ -0,0 +1,131 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2014. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+#ifndef ERTS_BIF_UNIQUE_H__
+#define ERTS_BIF_UNIQUE_H__
+
+#include "erl_process.h"
+#include "big.h"
+
+void erts_bif_unique_init(void);
+void erts_sched_bif_unique_init(ErtsSchedulerData *esdp);
+
+/* reference */
+Eterm erts_make_ref(Process *);
+Eterm erts_make_ref_in_buffer(Eterm buffer[REF_THING_SIZE]);
+void erts_make_ref_in_array(Uint32 ref[ERTS_MAX_REF_NUMBERS]);
+
+/* strict monotonic counter */
+
+#define ERTS_MAX_UNIQUE_MONOTONIC_INTEGER_HEAP_SIZE ERTS_MAX_UINT64_HEAP_SIZE
+
+/*
+ * Note that a raw value is an intermediate value that 
+ * not necessarily correspond to the end result.
+ */
+Sint64 erts_raw_get_unique_monotonic_integer(void);
+Uint erts_raw_unique_monotonic_integer_heap_size(Sint64 raw);
+Eterm erts_raw_make_unique_monotonic_integer_value(Eterm **hpp, Sint64 raw);
+
+Sint64 erts_get_min_unique_monotonic_integer(void);
+
+int erts_debug_set_unique_monotonic_integer_state(Eterm et_value);
+Eterm erts_debug_get_unique_monotonic_integer_state(Process *c_p);
+
+/* unique integer */
+#define ERTS_UNIQUE_INT_RAW_VALUES 2
+#define ERTS_MAX_UNIQUE_INT_HEAP_SIZE ERTS_UINT64_ARRAY_TO_BIG_MAX_HEAP_SZ(2)
+
+Uint erts_raw_unique_integer_heap_size(Uint64 val[ERTS_UNIQUE_INT_RAW_VALUES]);
+Eterm erts_raw_make_unique_integer(Eterm **hpp, Uint64 val[ERTS_UNIQUE_INT_RAW_VALUES]);
+void erts_raw_get_unique_integer(Uint64 val[ERTS_UNIQUE_INT_RAW_VALUES]);
+Sint64 erts_get_min_unique_integer(void);
+
+Eterm erts_debug_make_unique_integer(Process *c_p,
+				     Eterm etval0,
+				     Eterm etval1);
+
+
+ERTS_GLB_INLINE void erts_set_ref_numbers(Uint32 ref[ERTS_MAX_REF_NUMBERS],
+					  Uint32 thr_id, Uint64 value);
+ERTS_GLB_INLINE Uint32 erts_get_ref_numbers_thr_id(Uint32 ref[ERTS_MAX_REF_NUMBERS]);
+ERTS_GLB_INLINE Uint64 erts_get_ref_numbers_value(Uint32 ref[ERTS_MAX_REF_NUMBERS]);
+ERTS_GLB_INLINE void erts_sched_make_ref_in_array(ErtsSchedulerData *esdp,
+						  Uint32 ref[ERTS_MAX_REF_NUMBERS]);
+ERTS_GLB_INLINE Eterm erts_sched_make_ref_in_buffer(ErtsSchedulerData *esdp,
+						    Eterm buffer[REF_THING_SIZE]);
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE void
+erts_set_ref_numbers(Uint32 ref[ERTS_MAX_REF_NUMBERS], Uint32 thr_id, Uint64 value)
+{
+    /*
+     * We cannot use thread id in the first 18-bit word since
+     * the hash/phash/phash2 BIFs only hash on this word. If
+     * we did, we would get really poor hash values. Instead
+     * we have to shuffle the bits a bit.
+     */
+    ASSERT(thr_id == (thr_id & ((Uint32) 0x3ffff)));
+    ref[0] = (Uint32) (value & ((Uint64) 0x3ffff));
+    ref[1] = (((Uint32) (value & ((Uint64) 0xfffc0000)))
+	      | (thr_id & ((Uint32) 0x3ffff)));
+    ref[2] = (Uint32) ((value >> 32) & ((Uint64) 0xffffffff));
+}
+
+ERTS_GLB_INLINE Uint32
+erts_get_ref_numbers_thr_id(Uint32 ref[ERTS_MAX_REF_NUMBERS])
+{
+    return ref[1] & ((Uint32) 0x3ffff);
+}
+
+ERTS_GLB_INLINE Uint64
+erts_get_ref_numbers_value(Uint32 ref[ERTS_MAX_REF_NUMBERS])
+{
+    return (((((Uint64) ref[2]) & ((Uint64) 0xffffffff)) << 32)
+	    | (((Uint64) ref[1]) & ((Uint64) 0xfffc0000))
+	    | (((Uint64) ref[0]) & ((Uint64) 0x3ffff)));
+}
+
+ERTS_GLB_INLINE void
+erts_sched_make_ref_in_array(ErtsSchedulerData *esdp,
+			     Uint32 ref[ERTS_MAX_REF_NUMBERS])
+{
+    Uint64 value;
+
+    ASSERT(esdp);
+    value = esdp->ref++;
+    erts_set_ref_numbers(ref, (Uint32) esdp->thr_id, value);
+}
+
+ERTS_GLB_INLINE Eterm
+erts_sched_make_ref_in_buffer(ErtsSchedulerData *esdp,
+			      Eterm buffer[REF_THING_SIZE])
+{
+    Eterm* hp = buffer;
+    Uint32 ref[ERTS_MAX_REF_NUMBERS];
+
+    erts_sched_make_ref_in_array(esdp, ref);
+    write_ref_thing(hp, ref[0], ref[1], ref[2]);
+    return make_internal_ref(hp);
+}
+
+#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
+
+#endif /*  ERTS_BIF_UNIQUE_H__ */
diff --git a/erts/emulator/beam/erl_binary.h b/erts/emulator/beam/erl_binary.h
index 06dfeb1260..8d264d166e 100644
--- a/erts/emulator/beam/erl_binary.h
+++ b/erts/emulator/beam/erl_binary.h
@@ -231,41 +231,58 @@ erts_free_aligned_binary_bytes(byte* buf)
 #  define CHICKEN_PAD (sizeof(void*) - 1)
 #endif
 
+/* Caller must initialize 'refc'
+*/
 ERTS_GLB_INLINE Binary *
 erts_bin_drv_alloc_fnf(Uint size)
 {
     Uint bsize = ERTS_SIZEOF_Binary(size) + CHICKEN_PAD;
-    void *res;
+    Binary *res;
+
     if (bsize < size) /* overflow */
 	return NULL;
     res = erts_alloc_fnf(ERTS_ALC_T_DRV_BINARY, bsize);
     ERTS_CHK_BIN_ALIGNMENT(res);
-    return (Binary *) res;
+    if (res) {
+	res->orig_size = size;
+	res->flags = BIN_FLAG_DRV;
+    }
+    return res;
 }
 
+/* Caller must initialize 'refc'
+*/
 ERTS_GLB_INLINE Binary *
 erts_bin_drv_alloc(Uint size)
 {
     Uint bsize = ERTS_SIZEOF_Binary(size) + CHICKEN_PAD;
-    void *res;
+    Binary *res;
+
     if (bsize < size) /* overflow */
 	erts_alloc_enomem(ERTS_ALC_T_DRV_BINARY, size);
     res = erts_alloc(ERTS_ALC_T_DRV_BINARY, bsize);
     ERTS_CHK_BIN_ALIGNMENT(res);
-    return (Binary *) res;
+    res->orig_size = size;
+    res->flags = BIN_FLAG_DRV;
+    return res;
 }
 
 
+/* Caller must initialize 'refc'
+*/
 ERTS_GLB_INLINE Binary *
 erts_bin_nrml_alloc(Uint size)
 {
     Uint bsize = ERTS_SIZEOF_Binary(size) + CHICKEN_PAD;
-    void *res;
+    Binary *res;
+
     if (bsize < size) /* overflow */
 	erts_alloc_enomem(ERTS_ALC_T_BINARY, size);
     res = erts_alloc(ERTS_ALC_T_BINARY, bsize);
     ERTS_CHK_BIN_ALIGNMENT(res);
-    return (Binary *) res;
+    res->orig_size = size;
+    res->flags = 0;
+    return res;
 }
 
 ERTS_GLB_INLINE Binary *
@@ -280,6 +297,8 @@ erts_bin_realloc_fnf(Binary *bp, Uint size)
 	return NULL;
     nbp = erts_realloc_fnf(type, (void *) bp, bsize);
     ERTS_CHK_BIN_ALIGNMENT(nbp);
+    if (nbp)
+	nbp->orig_size = size;
     return nbp;
 }
 
@@ -297,6 +316,7 @@ erts_bin_realloc(Binary *bp, Uint size)
     if (!nbp)
 	erts_realloc_enomem(type, bp, bsize);
     ERTS_CHK_BIN_ALIGNMENT(nbp);
+    nbp->orig_size = size;
     return nbp;
 }
 
@@ -329,4 +349,4 @@ erts_create_magic_binary(Uint size, void (*destructor)(Binary *))
 
 #endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */
 
-#endif
+#endif /* !__ERL_BINARY_H */
diff --git a/erts/emulator/beam/erl_bits.c b/erts/emulator/beam/erl_bits.c
index 53c21c40e1..b8ae93fa58 100644
--- a/erts/emulator/beam/erl_bits.c
+++ b/erts/emulator/beam/erl_bits.c
@@ -165,6 +165,26 @@ erts_bs_start_match_2(Process *p, Eterm Binary, Uint Max)
     return make_matchstate(ms);
 }
 
+#ifdef DEBUG
+# define CHECK_MATCH_BUFFER(MB) check_match_buffer(MB)
+
+static void check_match_buffer(ErlBinMatchBuffer* mb)
+{
+    Eterm realbin;
+    Uint byteoffs;
+    byte* bytes, bitoffs, bitsz;
+    ProcBin* pb;
+    ERTS_GET_REAL_BIN(mb->orig, realbin, byteoffs, bitoffs, bitsz);
+    bytes = binary_bytes(realbin) + byteoffs;
+    ERTS_ASSERT(mb->base >= bytes && mb->base <= (bytes + binary_size(mb->orig)));
+    pb = (ProcBin *) boxed_val(realbin);
+    if (pb->thing_word == HEADER_PROC_BIN)
+        ERTS_ASSERT(pb->flags == 0);
+}
+#else
+# define CHECK_MATCH_BUFFER(MB)
+#endif
+
 Eterm
 erts_bs_get_integer_2(Process *p, Uint num_bits, unsigned flags, ErlBinMatchBuffer* mb)
 {
@@ -185,6 +205,7 @@ erts_bs_get_integer_2(Process *p, Uint num_bits, unsigned flags, ErlBinMatchBuff
 	return SMALL_ZERO;
     }
     
+    CHECK_MATCH_BUFFER(mb);
     if (mb->size - mb->offset < num_bits) {	/* Asked for too many bits.  */
 	return THE_NON_VALUE;
     }
@@ -425,6 +446,7 @@ erts_bs_get_binary_2(Process *p, Uint num_bits, unsigned flags, ErlBinMatchBuffe
 {
     ErlSubBin* sb;
 
+    CHECK_MATCH_BUFFER(mb);
     if (mb->size - mb->offset < num_bits) {	/* Asked for too many bits.  */
 	return THE_NON_VALUE;
     }
@@ -456,6 +478,7 @@ erts_bs_get_float_2(Process *p, Uint num_bits, unsigned flags, ErlBinMatchBuffer
     byte* fptr;
     FloatDef f;
 
+    CHECK_MATCH_BUFFER(mb);
     if (num_bits == 0) {
 	f.fd = 0.0;
 	hp = HeapOnlyAlloc(p, FLOAT_SIZE_OBJECT);
@@ -509,6 +532,8 @@ erts_bs_get_binary_all_2(Process *p, ErlBinMatchBuffer* mb)
 {
     ErlSubBin* sb;
     Uint size;
+
+    CHECK_MATCH_BUFFER(mb);
     size =  mb->size-mb->offset;
     sb = (ErlSubBin *) HeapOnlyAlloc(p, ERL_SUB_BIN_SIZE);
     sb->thing_word = HEADER_SUB_BIN;
@@ -1302,7 +1327,6 @@ erts_bs_append(Process* c_p, Eterm* reg, Uint live, Eterm build_size_term,
     if (binp->orig_size < pb->size) {
 	Uint new_size = 2*pb->size;
 	binp = erts_bin_realloc(binp, new_size);
-	binp->orig_size = new_size;
 	pb->val = binp;
 	pb->bytes = (byte *) binp->orig_bytes;
     }
@@ -1374,8 +1398,6 @@ erts_bs_append(Process* c_p, Eterm* reg, Uint live, Eterm build_size_term,
 	 * Allocate the binary data struct itself.
 	 */
 	bptr = erts_bin_nrml_alloc(bin_size);
-	bptr->flags = 0;
-	bptr->orig_size = bin_size;
 	erts_refc_init(&bptr->refc, 1);
 	erts_current_bin = (byte *) bptr->orig_bytes;
 
@@ -1478,7 +1500,6 @@ erts_bs_private_append(Process* p, Eterm bin, Eterm build_size_term, Uint unit)
 	     * is safe to reallocate it.
 	     */
 	    binp = erts_bin_realloc(binp, new_size);
-	    binp->orig_size = new_size;
 	    pb->val = binp;
 	    pb->bytes = (byte *) binp->orig_bytes;
 	} else {
@@ -1491,8 +1512,6 @@ erts_bs_private_append(Process* p, Eterm bin, Eterm build_size_term, Uint unit)
 	     * binary and copy the contents of the old binary into it.
 	     */
 	    Binary* bptr = erts_bin_nrml_alloc(new_size);
-	    bptr->flags = 0;
-	    bptr->orig_size = new_size;
 	    erts_refc_init(&bptr->refc, 1);
 	    sys_memcpy(bptr->orig_bytes, binp->orig_bytes, binp->orig_size);
 	    pb->flags |= PB_IS_WRITABLE | PB_ACTIVE_WRITER;
@@ -1540,8 +1559,6 @@ erts_bs_init_writable(Process* p, Eterm sz)
      * Allocate the binary data struct itself.
      */
     bptr = erts_bin_nrml_alloc(bin_size);
-    bptr->flags = 0;
-    bptr->orig_size = bin_size;
     erts_refc_init(&bptr->refc, 1);
     
     /*
@@ -1588,9 +1605,7 @@ erts_emasculate_writable_binary(ProcBin* pb)
     /* Our allocators are 8 byte aligned, i.e., shrinking with
        less than 8 bytes will have no real effect */
     if (unused >= 8) {
-	Uint new_size = pb->size;
 	binp = erts_bin_realloc(binp, pb->size);
-	binp->orig_size = new_size;
 	pb->val = binp;
 	pb->bytes = (byte *) binp->orig_bytes;
     }
@@ -1605,6 +1620,7 @@ erts_bs_get_unaligned_uint32(ErlBinMatchBuffer* mb)
     byte* LSB;
     byte* MSB;
 	
+    CHECK_MATCH_BUFFER(mb);
     ASSERT((mb->offset & 7) != 0);
     ASSERT(mb->size - mb->offset >= 32);
 
@@ -1664,6 +1680,8 @@ erts_bs_get_utf8(ErlBinMatchBuffer* mb)
 	2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 3,3,3,3,3,3,3,3,9,9,9,9,9,9,9,9
     };
 
+    CHECK_MATCH_BUFFER(mb);
+
     if ((remaining_bits = mb->size - mb->offset) < 8) {
 	return THE_NON_VALUE;
     }
@@ -1748,6 +1766,7 @@ erts_bs_get_utf16(ErlBinMatchBuffer* mb, Uint flags)
 	return THE_NON_VALUE;
     }
 
+    CHECK_MATCH_BUFFER(mb);
     /*
      * Set up the pointer to the source bytes.
      */
diff --git a/erts/emulator/beam/erl_db.c b/erts/emulator/beam/erl_db.c
index 8f246ffa07..2e2cb98354 100644
--- a/erts/emulator/beam/erl_db.c
+++ b/erts/emulator/beam/erl_db.c
@@ -620,7 +620,7 @@ BIF_RETTYPE ets_safe_fixtable_2(BIF_ALIST_2)
     erts_fprintf(stderr,
 		"ets:safe_fixtable(%T,%T); Process: %T, initial: %T:%T/%bpu\n",
 		BIF_ARG_1, BIF_ARG_2, BIF_P->common.id,
-		BIF_P->initial[0], BIF_P->initial[1], BIF_P->initial[2]);
+		BIF_P->u.initial[0], BIF_P->u.initial[1], BIF_P->u.initial[2]);
 #endif
     kind = (BIF_ARG_2 == am_true) ? LCK_READ : LCK_WRITE_REC; 
 
@@ -753,6 +753,31 @@ BIF_RETTYPE ets_prev_2(BIF_ALIST_2)
     BIF_RET(ret);
 }
 
+/*
+** take(Tab, Key)
+*/
+BIF_RETTYPE ets_take_2(BIF_ALIST_2)
+{
+    DbTable* tb;
+#ifdef DEBUG
+    int cret;
+#endif
+    Eterm ret;
+    CHECK_TABLES();
+
+    tb = db_get_table(BIF_P, BIF_ARG_1, DB_WRITE, LCK_WRITE_REC);
+    if (!tb) {
+        BIF_ERROR(BIF_P, BADARG);
+    }
+#ifdef DEBUG
+    cret =
+#endif
+        tb->common.meth->db_take(BIF_P, tb, BIF_ARG_2, &ret);
+    ASSERT(cret == DB_ERROR_NONE);
+    db_unlock(tb, LCK_WRITE_REC);
+    BIF_RET(ret);
+}
+
 /* 
 ** update_element(Tab, Key, {Pos, Value})
 ** update_element(Tab, Key, [{Pos, Value}])
@@ -780,7 +805,7 @@ BIF_RETTYPE ets_update_element_3(BIF_ALIST_3)
 	list = BIF_ARG_3;
     }
 
-    if (!tb->common.meth->db_lookup_dbterm(tb, BIF_ARG_2, &handle)) {
+    if (!tb->common.meth->db_lookup_dbterm(BIF_P, tb, BIF_ARG_2, THE_NON_VALUE, &handle)) {
 	cret = DB_ERROR_BADKEY;
 	goto bail_out;
     }
@@ -819,7 +844,7 @@ BIF_RETTYPE ets_update_element_3(BIF_ALIST_3)
     }
 
 finalize:
-    tb->common.meth->db_finalize_dbterm(&handle);
+    tb->common.meth->db_finalize_dbterm(cret, &handle);
 
 bail_out:
     UnUseTmpHeap(2,BIF_P);
@@ -838,14 +863,8 @@ bail_out:
     }
 }
 
-/* 
-** update_counter(Tab, Key, Incr) 
-** update_counter(Tab, Key, {Upop}) 
-** update_counter(Tab, Key, [{Upop}]) 
-** Upop = {Pos,Incr} | {Pos,Incr,Threshold,WarpTo}
-** Returns new value(s) (integer or [integer])
-*/
-BIF_RETTYPE ets_update_counter_3(BIF_ALIST_3)
+static BIF_RETTYPE
+do_update_counter(Process *p, Eterm arg1, Eterm arg2, Eterm arg3, Eterm arg4)
 {
     DbTable* tb;
     int cret = DB_ERROR_BADITEM;
@@ -855,7 +874,7 @@ BIF_RETTYPE ets_update_counter_3(BIF_ALIST_3)
     Eterm* ret_list_currp = NULL;
     Eterm* ret_list_prevp = NULL;
     Eterm iter;
-    DeclareTmpHeap(cell,5,BIF_P);
+    DeclareTmpHeap(cell, 5, p);
     Eterm *tuple = cell+2;
     DbUpdateHandle handle;
     Uint halloc_size = 0; /* overestimated heap usage */
@@ -863,28 +882,29 @@ BIF_RETTYPE ets_update_counter_3(BIF_ALIST_3)
     Eterm* hstart;
     Eterm* hend;
 
-    if ((tb = db_get_table(BIF_P, BIF_ARG_1, DB_WRITE, LCK_WRITE_REC)) == NULL) {
-	BIF_ERROR(BIF_P, BADARG);
+    if ((tb = db_get_table(p, arg1, DB_WRITE, LCK_WRITE_REC)) == NULL) {
+        BIF_ERROR(p, BADARG);
     }
 
-    UseTmpHeap(5,BIF_P);
+    UseTmpHeap(5, p);
 
     if (!(tb->common.status & (DB_SET | DB_ORDERED_SET))) {
 	goto bail_out;
     }
-    if (is_integer(BIF_ARG_3)) {  /* Incr */
-	upop_list = CONS(cell, TUPLE2(tuple, make_small(tb->common.keypos+1),
-				      BIF_ARG_3), NIL);
+    if (is_integer(arg3)) { /* Incr */
+        upop_list = CONS(cell,
+                         TUPLE2(tuple, make_small(tb->common.keypos+1), arg3),
+                         NIL);
     }
-    else if (is_tuple(BIF_ARG_3)) { /* {Upop} */
-	upop_list = CONS(cell, BIF_ARG_3, NIL);
+    else if (is_tuple(arg3)) { /* {Upop} */
+        upop_list = CONS(cell, arg3, NIL);
     }
     else { /* [{Upop}] (probably) */
-	upop_list = BIF_ARG_3;
+        upop_list = arg3;
 	ret_list_prevp = &ret;
     }
 
-    if (!tb->common.meth->db_lookup_dbterm(tb, BIF_ARG_2, &handle)) {
+    if (!tb->common.meth->db_lookup_dbterm(p, tb, arg2, arg4, &handle)) {
 	goto bail_out; /* key not found */
     }
 
@@ -957,13 +977,13 @@ BIF_RETTYPE ets_update_counter_3(BIF_ALIST_3)
     if (ret_list_prevp) { /* Prepare to return a list */
 	ret = NIL;
 	halloc_size += list_size;
-	hstart = HAlloc(BIF_P, halloc_size);
+	hstart = HAlloc(p, halloc_size);
 	ret_list_currp = hstart;
 	htop = hstart + list_size;
 	hend = hstart + halloc_size;
     }
     else {
-	hstart = htop = HAlloc(BIF_P, halloc_size);
+	hstart = htop = HAlloc(p, halloc_size);
     }
     hend = hstart + halloc_size;
 
@@ -1010,26 +1030,54 @@ BIF_RETTYPE ets_update_counter_3(BIF_ALIST_3)
 	   (is_list(ret) && (list_val(ret)+list_size)==ret_list_currp));
     ASSERT(htop <= hend);
 
-    HRelease(BIF_P,hend,htop);
+    HRelease(p, hend, htop);
 
 finalize:
-    tb->common.meth->db_finalize_dbterm(&handle);
+    tb->common.meth->db_finalize_dbterm(cret, &handle);
 
 bail_out:
-    UnUseTmpHeap(5,BIF_P);
+    UnUseTmpHeap(5, p);
     db_unlock(tb, LCK_WRITE_REC);
 
     switch (cret) {
     case DB_ERROR_NONE:
 	BIF_RET(ret);
     case DB_ERROR_SYSRES:
-	BIF_ERROR(BIF_P, SYSTEM_LIMIT);
+        BIF_ERROR(p, SYSTEM_LIMIT);
     default:
-	BIF_ERROR(BIF_P, BADARG);
+        BIF_ERROR(p, BADARG);
 	break;
     }
 }
 
+/*
+** update_counter(Tab, Key, Incr)
+** update_counter(Tab, Key, Upop)
+** update_counter(Tab, Key, [{Upop}])
+** Upop = {Pos,Incr} | {Pos,Incr,Threshold,WarpTo}
+** Returns new value(s) (integer or [integer])
+*/
+BIF_RETTYPE ets_update_counter_3(BIF_ALIST_3)
+{
+    return do_update_counter(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3, THE_NON_VALUE);
+}
+
+/*
+** update_counter(Tab, Key, Incr, Default)
+** update_counter(Tab, Key, Upop, Default)
+** update_counter(Tab, Key, [{Upop}], Default)
+** Upop = {Pos,Incr} | {Pos,Incr,Threshold,WarpTo}
+** Returns new value(s) (integer or [integer])
+*/
+BIF_RETTYPE ets_update_counter_4(BIF_ALIST_4)
+{
+    if (is_not_tuple(BIF_ARG_4)) {
+        BIF_ERROR(BIF_P, BADARG);
+    }
+    return do_update_counter(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3, BIF_ARG_4);
+}
+
+
 /* 
 ** The put BIF 
 */
@@ -1199,7 +1247,7 @@ BIF_RETTYPE ets_rename_2(BIF_ALIST_2)
     erts_fprintf(stderr,
 		"ets:rename(%T,%T); Process: %T, initial: %T:%T/%bpu\n",
 		BIF_ARG_1, BIF_ARG_2, BIF_P->common.id,
-		BIF_P->initial[0], BIF_P->initial[1], BIF_P->initial[2]);
+		BIF_P->u.initial[0], BIF_P->u.initial[1], BIF_P->u.initial[2]);
 #endif
 
 
@@ -1515,7 +1563,7 @@ BIF_RETTYPE ets_new_2(BIF_ALIST_2)
     erts_fprintf(stderr,
 		"ets:new(%T,%T)=%T; Process: %T, initial: %T:%T/%bpu\n",
 		 BIF_ARG_1, BIF_ARG_2, ret, BIF_P->common.id,
-		 BIF_P->initial[0], BIF_P->initial[1], BIF_P->initial[2]);
+		 BIF_P->u.initial[0], BIF_P->u.initial[1], BIF_P->u.initial[2]);
 	erts_fprintf(stderr, "ets: new: meta_pid_to_tab common.memory_size = %ld\n",
 		     erts_smp_atomic_read_nob(&meta_pid_to_tab->common.memory_size));
 	erts_fprintf(stderr, "ets: new: meta_pid_to_fixed_tab common.memory_size = %ld\n",
@@ -1648,7 +1696,7 @@ BIF_RETTYPE ets_delete_1(BIF_ALIST_1)
     erts_fprintf(stderr,
 		"ets:delete(%T); Process: %T, initial: %T:%T/%bpu\n",
 		BIF_ARG_1, BIF_P->common.id,
-		BIF_P->initial[0], BIF_P->initial[1], BIF_P->initial[2]);
+		BIF_P->u.initial[0], BIF_P->u.initial[1], BIF_P->u.initial[2]);
 #endif
 
     CHECK_TABLES();
@@ -2643,7 +2691,9 @@ BIF_RETTYPE ets_match_object_3(BIF_ALIST_3)
 BIF_RETTYPE ets_info_1(BIF_ALIST_1)
 {
     static Eterm fields[] = {am_protection, am_keypos, am_type, am_named_table,
-	am_node, am_size, am_name, am_heir, am_owner, am_memory, am_compressed};
+                             am_node, am_size, am_name, am_heir, am_owner, am_memory, am_compressed,
+                             am_write_concurrency,
+                             am_read_concurrency};
     Eterm results[sizeof(fields)/sizeof(Eterm)];
     DbTable* tb;
     Eterm res;
@@ -3670,6 +3720,10 @@ static Eterm table_info(Process* p, DbTable* tb, Eterm What)
 	    ret = am_protected;
 	else if (tb->common.status & DB_PUBLIC)
 	    ret = am_public;
+    } else if (What == am_write_concurrency) {
+        ret = tb->common.status & DB_FINE_LOCKED ? am_true : am_false;
+    } else if (What == am_read_concurrency) {
+        ret = tb->common.status & DB_FREQ_READ ? am_true : am_false;
     } else if (What == am_name) {
 	ret = tb->common.the_name;
     } else if (What == am_keypos) {
@@ -3752,7 +3806,7 @@ static Eterm table_info(Process* p, DbTable* tb, Eterm What)
 			 avg, std_dev_real, std_dev_exp,
 			 make_small(stats.min_chain_len),
 			 make_small(stats.max_chain_len),
-			 make_small(db_kept_items_hash(&tb->hash)));
+			 make_small(stats.kept_items));
 	}
 	else {
 	    ret = am_false;
@@ -3774,6 +3828,11 @@ static void print_table(int to, void *to_arg, int show,  DbTable* tb)
 			+ sizeof(Uint)
 			- 1)
 		       / sizeof(Uint)));
+    erts_print(to, to_arg, "Type: %T\n", table_info(NULL, tb, am_type));
+    erts_print(to, to_arg, "Protection: %T\n", table_info(NULL, tb, am_protection));
+    erts_print(to, to_arg, "Compressed: %T\n", table_info(NULL, tb, am_compressed));
+    erts_print(to, to_arg, "Write Concurrency: %T\n", table_info(NULL, tb, am_write_concurrency));
+    erts_print(to, to_arg, "Read Concurrency: %T\n", table_info(NULL, tb, am_read_concurrency));
 }
 
 void db_info(int to, void *to_arg, int show)    /* Called by break handler */
diff --git a/erts/emulator/beam/erl_db_hash.c b/erts/emulator/beam/erl_db_hash.c
index 06dac8f161..383ee7c430 100644
--- a/erts/emulator/beam/erl_db_hash.c
+++ b/erts/emulator/beam/erl_db_hash.c
@@ -174,7 +174,7 @@ static ERTS_INLINE void add_fixed_deletion(DbTableHash* tb, int ix)
 /* optimised version of make_hash (normal case? atomic key) */
 #define MAKE_HASH(term) \
     ((is_atom(term) ? (atom_tab(atom_val(term))->slot.bucket.hvalue) : \
-      make_hash2(term)) % MAX_HASH)
+      make_internal_hash(term)) % MAX_HASH)
 
 #ifdef ERTS_SMP
 #  define DB_HASH_LOCK_MASK (DB_HASH_LOCK_CNT-1)
@@ -382,7 +382,7 @@ static HashDbTerm* search_list(DbTableHash* tb, Eterm key,
 static void shrink(DbTableHash* tb, int nactive);
 static void grow(DbTableHash* tb, int nactive);
 static Eterm build_term_list(Process* p, HashDbTerm* ptr1, HashDbTerm* ptr2,
-			   DbTableHash*);
+			   Uint sz, DbTableHash*);
 static int analyze_pattern(DbTableHash *tb, Eterm pattern, 
 			   struct mp_info *mpi);
 
@@ -426,6 +426,7 @@ static int db_select_count_continue_hash(Process *p, DbTable *tbl,
 
 static int db_select_delete_continue_hash(Process *p, DbTable *tbl,
 					  Eterm continuation, Eterm *ret);
+static int db_take_hash(Process *, DbTable *, Eterm, Eterm *);
 static void db_print_hash(int to,
 			  void *to_arg,
 			  int show,
@@ -443,8 +444,11 @@ static int db_delete_all_objects_hash(Process* p, DbTable* tbl);
 #ifdef HARDDEBUG
 static void db_check_table_hash(DbTableHash *tb);
 #endif
-static int db_lookup_dbterm_hash(DbTable *tbl, Eterm key, DbUpdateHandle* handle);
-static void db_finalize_dbterm_hash(DbUpdateHandle* handle);
+static int
+db_lookup_dbterm_hash(Process *p, DbTable *tbl, Eterm key, Eterm obj,
+                      DbUpdateHandle* handle);
+static void
+db_finalize_dbterm_hash(int cret, DbUpdateHandle* handle);
 
 static ERTS_INLINE void try_shrink(DbTableHash* tb)
 {
@@ -536,6 +540,7 @@ DbTableMethod db_hash =
     db_select_delete_continue_hash,
     db_select_count_hash,
     db_select_count_continue_hash,
+    db_take_hash,
     db_delete_all_objects_hash,
     db_free_table_hash,
     db_free_table_continue_hash,
@@ -646,25 +651,6 @@ restart:
     /* ToDo: Maybe try grow/shrink the table as well */
 }
 
-/* Only used by tests
-*/
-Uint db_kept_items_hash(DbTableHash *tb)
-{
-    Uint kept_items = 0;
-    Uint ix = 0;
-    erts_smp_rwmtx_t* lck = RLOCK_HASH(tb,ix);
-    HashDbTerm* b;
-    do {
-	for (b = BUCKET(tb, ix); b != NULL; b = b->next) {
-	    if (b->hvalue == INVALID_HASH) {
-		++kept_items;
-	    }
-	}	
-	ix = next_slot(tb, ix, &lck);
-    }while (ix);
-    return kept_items;
-}
-
 int db_create_hash(Process *p, DbTable *tbl)
 {
     DbTableHash *tb = &tbl->hash;
@@ -879,34 +865,49 @@ Ldone:
     return ret;
 }
 
+static Eterm
+get_term_list(Process *p, DbTableHash *tb, Eterm key, HashValue hval,
+              HashDbTerm *b1, HashDbTerm **bend)
+{
+    HashDbTerm* b2 = b1->next;
+    Eterm copy;
+    Uint sz = b1->dbterm.size + 2;
+
+    if (tb->common.status & (DB_BAG | DB_DUPLICATE_BAG)) {
+        while (b2 && has_key(tb, b2, key, hval)) {
+	    if (b2->hvalue != INVALID_HASH)
+		sz += b2->dbterm.size + 2;
+
+            b2 = b2->next;
+        }
+    }
+    copy = build_term_list(p, b1, b2, sz, tb);
+    CHECK_TABLES();
+    if (bend) {
+        *bend = b2;
+    }
+    return copy;
+}
+
 int db_get_hash(Process *p, DbTable *tbl, Eterm key, Eterm *ret)
 {
     DbTableHash *tb = &tbl->hash;
     HashValue hval;
     int ix;
-    HashDbTerm* b1;
+    HashDbTerm* b;
     erts_smp_rwmtx_t* lck;
 
     hval = MAKE_HASH(key);
     lck = RLOCK_HASH(tb,hval);
     ix = hash_to_ix(tb, hval);
-    b1 = BUCKET(tb, ix);
-
-    while(b1 != 0) {
-	if (has_live_key(tb,b1,key,hval)) {
-	    HashDbTerm* b2 = b1->next;
-	    Eterm copy;
+    b = BUCKET(tb, ix);
 
-	    if (tb->common.status & (DB_BAG | DB_DUPLICATE_BAG)) {
-		while(b2 != NULL && has_key(tb,b2,key,hval))
-		    b2 = b2->next;
-	    }
-	    copy = build_term_list(p, b1, b2, tb);
-	    CHECK_TABLES();
-	    *ret = copy;
+    while(b != 0) {
+        if (has_live_key(tb, b, key, hval)) {
+            *ret = get_term_list(p, tb, key, hval, b, NULL);
 	    goto done;
 	}
-	b1 = b1->next;
+        b = b->next;
     }
     *ret = NIL;
 done:
@@ -1240,7 +1241,7 @@ static int db_slot_hash(Process *p, DbTable *tbl, Eterm slot_term, Eterm *ret)
     lck = RLOCK_HASH(tb, slot);
     nactive = NACTIVE(tb);
     if (slot < nactive) {
-	*ret = build_term_list(p, BUCKET(tb, slot), 0, tb);
+	*ret = build_term_list(p, BUCKET(tb, slot), NULL, 0, tb);
 	retval = DB_ERROR_NONE;
     }
     else if (slot == nactive) {
@@ -2069,6 +2070,46 @@ trap:
 
 }
     
+static int db_take_hash(Process *p, DbTable *tbl, Eterm key, Eterm *ret)
+{
+    DbTableHash *tb = &tbl->hash;
+    HashDbTerm **bp, *b;
+    HashValue hval = MAKE_HASH(key);
+    erts_smp_rwmtx_t *lck = WLOCK_HASH(tb, hval);
+    int ix = hash_to_ix(tb, hval);
+    int nitems_diff = 0;
+
+    *ret = NIL;
+    for (bp = &BUCKET(tb, ix), b = *bp; b; bp = &b->next, b = b->next) {
+        if (has_live_key(tb, b, key, hval)) {
+            HashDbTerm *bend;
+
+            *ret = get_term_list(p, tb, key, hval, b, &bend);
+            while (b != bend) {
+                --nitems_diff;
+                if (nitems_diff == -1 && IS_FIXED(tb)) {
+                    /* Pseudo remove (no need to keep several of same key) */
+                    add_fixed_deletion(tb, ix);
+                    bp = &b->next;
+                    b->hvalue = INVALID_HASH;
+                    b = b->next;
+                } else {
+                    *bp = b->next;
+                    free_term(tb, b);
+                    b = *bp;
+                }
+            }
+            break;
+        }
+    }
+    WUNLOCK_HASH(lck);
+    if (nitems_diff) {
+        erts_smp_atomic_add_nob(&tb->common.nitems, nitems_diff);
+        try_shrink(tb);
+    }
+    return DB_ERROR_NONE;
+}
+
 /*
 ** Other interface routines (not directly coupled to one bif)
 */
@@ -2104,10 +2145,38 @@ int db_mark_all_deleted_hash(DbTable *tbl)
 static void db_print_hash(int to, void *to_arg, int show, DbTable *tbl)
 {
     DbTableHash *tb = &tbl->hash;
+    DbHashStats stats;
     int i;
 
     erts_print(to, to_arg, "Buckets: %d\n", NACTIVE(tb));
-    
+
+#ifdef ERTS_SMP
+    i = tbl->common.is_thread_safe;
+    /* If crash dumping we set table to thread safe in order to
+       avoid taking any locks */
+    if (ERTS_IS_CRASH_DUMPING)
+        tbl->common.is_thread_safe = 1;
+
+    db_calc_stats_hash(&tbl->hash, &stats);
+
+    tbl->common.is_thread_safe = i;
+#else
+    db_calc_stats_hash(&tbl->hash, &stats);
+#endif
+
+    erts_print(to, to_arg, "Chain Length Avg: %f\n", stats.avg_chain_len);
+    erts_print(to, to_arg, "Chain Length Max: %d\n", stats.max_chain_len);
+    erts_print(to, to_arg, "Chain Length Min: %d\n", stats.min_chain_len);
+    erts_print(to, to_arg, "Chain Length Std Dev: %f\n",
+               stats.std_dev_chain_len);
+    erts_print(to, to_arg, "Chain Length Expected Std Dev: %f\n",
+               stats.std_dev_expected);
+
+    if (IS_FIXED(tb))
+        erts_print(to, to_arg, "Fixed: %d\n", stats.kept_items);
+    else
+        erts_print(to, to_arg, "Fixed: false\n");
+
     if (show) {
 	for (i = 0; i < NACTIVE(tb); i++) {
 	    HashDbTerm* list = BUCKET(tb,i);
@@ -2402,10 +2471,10 @@ static int alloc_seg(DbTableHash *tb)
 */
 static int free_seg(DbTableHash *tb, int free_records)
 {
-    int seg_ix = (tb->nslots >> SEGSZ_EXP) - 1;
+    const int seg_ix = (tb->nslots >> SEGSZ_EXP) - 1;
+    struct segment** const segtab = SEGTAB(tb);
+    struct ext_segment* const top = (struct ext_segment*) segtab[seg_ix];
     int bytes;
-    struct segment** segtab = SEGTAB(tb);
-    struct ext_segment* top = (struct ext_segment*) segtab[seg_ix];
     int nrecords = 0;
 
     ASSERT(top != NULL); 
@@ -2468,7 +2537,7 @@ static int free_seg(DbTableHash *tb, int free_records)
 		 (void*)top, bytes);
 #ifdef DEBUG
     if (seg_ix > 0) {
-	if (seg_ix < tb->nsegs) SEGTAB(tb)[seg_ix] = NULL;
+        segtab[seg_ix] = NULL;
     } else {
 	SET_SEGTAB(tb, NULL);
     }
@@ -2483,23 +2552,23 @@ static int free_seg(DbTableHash *tb, int free_records)
 ** Copy terms from ptr1 until ptr2
 ** works for ptr1 == ptr2 == 0  => []
 ** or ptr2 == 0
+** sz is either precalculated heap size or 0 if not known
 */
 static Eterm build_term_list(Process* p, HashDbTerm* ptr1, HashDbTerm* ptr2,
-			   DbTableHash* tb)
+			     Uint sz, DbTableHash* tb)
 {
-    int sz = 0;
     HashDbTerm* ptr;
     Eterm list = NIL;
     Eterm copy;
     Eterm *hp, *hend;
 
-    ptr = ptr1;
-    while(ptr != ptr2) {
-
-	if (ptr->hvalue != INVALID_HASH)
-	    sz += ptr->dbterm.size + 2;
-
-	ptr = ptr->next;
+    if (!sz) {
+	ptr = ptr1;
+	while(ptr != ptr2) {
+	    if (ptr->hvalue != INVALID_HASH)
+		sz += ptr->dbterm.size + 2;
+	    ptr = ptr->next;
+	}
     }
 
     hp = HAlloc(p, sz);
@@ -2730,59 +2799,129 @@ static HashDbTerm* next(DbTableHash *tb, Uint *iptr, erts_smp_rwmtx_t** lck_ptr,
     return NULL;
 }
 
-static int db_lookup_dbterm_hash(DbTable *tbl, Eterm key, DbUpdateHandle* handle)
+static int
+db_lookup_dbterm_hash(Process *p, DbTable *tbl, Eterm key, Eterm obj,
+                      DbUpdateHandle* handle)
 {
     DbTableHash *tb = &tbl->hash;
-    HashDbTerm* b;
-    HashDbTerm** prevp;
-    int ix;
     HashValue hval;
+    HashDbTerm **bp, *b;
     erts_smp_rwmtx_t* lck;
+    int flags = 0;
+
+    ASSERT(tb->common.status & DB_SET);
 
     hval = MAKE_HASH(key);
-    lck = WLOCK_HASH(tb,hval);
-    ix = hash_to_ix(tb, hval);
-    prevp = &BUCKET(tb, ix);
-    b = *prevp;
+    lck = WLOCK_HASH(tb, hval);
+    bp = &BUCKET(tb, hash_to_ix(tb, hval));
+    b = *bp;
 
-    while (b != 0) {
-	if (has_live_key(tb,b,key,hval)) {
-	    handle->tb = tbl;
-	    handle->bp = (void**) prevp;
-	    handle->dbterm = &b->dbterm;
-	    handle->mustResize = 0;
-	    handle->new_size = b->dbterm.size;
-	#if HALFWORD_HEAP
-	    handle->abs_vec = NULL;
-	#endif
-	    handle->lck = lck;
-	    /* KEEP hval WLOCKED, db_finalize_dbterm_hash will WUNLOCK */
-	    return 1;
-	}
-	prevp = &b->next;
-	b = *prevp;
+    for (;;) {
+        if (b == NULL) {
+            break;
+        }
+        if (has_key(tb, b, key, hval)) {
+            if (b->hvalue != INVALID_HASH) {
+                goto Ldone;
+            }
+            break;
+        }
+        bp = &b->next;
+        b = *bp;
     }
-    WUNLOCK_HASH(lck);
-    return 0;
+
+    if (obj == THE_NON_VALUE) {
+        WUNLOCK_HASH(lck);
+        return 0;
+    }
+
+    {
+        Eterm *objp = tuple_val(obj);
+        int arity = arityval(*objp);
+        Eterm *htop, *hend;
+
+        ASSERT(arity >= tb->common.keypos);
+        htop = HAlloc(p, arity + 1);
+        hend = htop + arity + 1;
+        sys_memcpy(htop, objp, sizeof(Eterm) * (arity + 1));
+        htop[tb->common.keypos] = key;
+        obj = make_tuple(htop);
+
+        if (b == NULL) {
+            HashDbTerm *q = new_dbterm(tb, obj);
+
+            q->hvalue = hval;
+            q->next = NULL;
+            *bp = b = q;
+
+            {
+                int nitems = erts_smp_atomic_inc_read_nob(&tb->common.nitems);
+                int nactive = NACTIVE(tb);
+
+                if (nitems > nactive * (CHAIN_LEN + 1) && !IS_FIXED(tb)) {
+                    grow(tb, nactive);
+                }
+            }
+        } else {
+            HashDbTerm *q, *next = b->next;
+
+            ASSERT(b->hvalue == INVALID_HASH);
+            q = replace_dbterm(tb, b, obj);
+            q->next = next;
+            q->hvalue = hval;
+            *bp = b = q;
+            erts_smp_atomic_inc_nob(&tb->common.nitems);
+        }
+
+        HRelease(p, hend, htop);
+        flags |= DB_NEW_OBJECT;
+    }
+
+Ldone:
+    handle->tb = tbl;
+    handle->bp = (void **)bp;
+    handle->dbterm = &b->dbterm;
+    handle->flags = flags;
+    handle->new_size = b->dbterm.size;
+#if HALFWORD_HEAP
+    handle->abs_vec = NULL;
+#endif
+    handle->lck = lck;
+    return 1;
 }
 
 /* Must be called after call to db_lookup_dbterm
 */
-static void db_finalize_dbterm_hash(DbUpdateHandle* handle)
+static void
+db_finalize_dbterm_hash(int cret, DbUpdateHandle* handle)
 {
     DbTable* tbl = handle->tb;
-    HashDbTerm* oldp = (HashDbTerm*) *(handle->bp);
+    DbTableHash *tb = &tbl->hash;
+    HashDbTerm **bp = (HashDbTerm **) handle->bp;
+    HashDbTerm *b = *bp;
     erts_smp_rwmtx_t* lck = (erts_smp_rwmtx_t*) handle->lck;
 
-    ERTS_SMP_LC_ASSERT(IS_HASH_WLOCKED(&tbl->hash,lck));  /* locked by db_lookup_dbterm_hash */
+    ERTS_SMP_LC_ASSERT(IS_HASH_WLOCKED(tb, lck));  /* locked by db_lookup_dbterm_hash */
 
-    ASSERT((&oldp->dbterm == handle->dbterm) == !(tbl->common.compress && handle->mustResize));
+    ASSERT((&b->dbterm == handle->dbterm) == !(tb->common.compress && handle->flags & DB_MUST_RESIZE));
+
+    if (handle->flags & DB_NEW_OBJECT && cret != DB_ERROR_NONE) {
+        if (IS_FIXED(tb)) {
+            add_fixed_deletion(tb, hash_to_ix(tb, b->hvalue));
+            b->hvalue = INVALID_HASH;
+        } else {
+            *bp = b->next;
+            free_term(tb, b);
+        }
 
-    if (handle->mustResize) {
+        WUNLOCK_HASH(lck);
+        erts_smp_atomic_dec_nob(&tb->common.nitems);
+        try_shrink(tb);
+    } else if (handle->flags & DB_MUST_RESIZE) {
 	db_finalize_resize(handle, offsetof(HashDbTerm,dbterm));
 	WUNLOCK_HASH(lck);
 
-	free_term(&tbl->hash, oldp);
+	free_term(tb, b);
     }
     else {
 	WUNLOCK_HASH(lck);
@@ -2833,6 +2972,7 @@ void db_calc_stats_hash(DbTableHash* tb, DbHashStats* stats)
     erts_smp_rwmtx_t* lck;
     int sum = 0;
     int sq_sum = 0;
+    int kept_items = 0;
     int ix;
     int len;
     
@@ -2844,6 +2984,8 @@ void db_calc_stats_hash(DbTableHash* tb, DbHashStats* stats)
 	len = 0;
 	for (b = BUCKET(tb,ix); b!=NULL; b=b->next) {
 	    len++;
+            if (b->hvalue == INVALID_HASH)
+                ++kept_items;
 	}
 	sum += len;
 	sq_sum += len*len;
@@ -2855,7 +2997,8 @@ void db_calc_stats_hash(DbTableHash* tb, DbHashStats* stats)
     stats->std_dev_chain_len = sqrt((sq_sum - stats->avg_chain_len*sum) / NACTIVE(tb));
     /* Expected	standard deviation from a good uniform hash function, 
        ie binomial distribution (not taking the linear hashing into acount) */
-    stats->std_dev_expected = sqrt(stats->avg_chain_len * (1 - 1.0/NACTIVE(tb)));	
+    stats->std_dev_expected = sqrt(stats->avg_chain_len * (1 - 1.0/NACTIVE(tb)));
+    stats->kept_items = kept_items;
 }
 #ifdef HARDDEBUG
 
diff --git a/erts/emulator/beam/erl_db_hash.h b/erts/emulator/beam/erl_db_hash.h
index 908cec11d4..f12cd363b0 100644
--- a/erts/emulator/beam/erl_db_hash.h
+++ b/erts/emulator/beam/erl_db_hash.h
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 1998-2013. All Rights Reserved.
+ * Copyright Ericsson AB 1998-2014. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -42,7 +42,7 @@ typedef struct hash_db_term {
 typedef struct db_table_hash_fine_locks {
     union {
 	erts_smp_rwmtx_t lck;
-	byte _cache_line_alignment[64];
+	byte _cache_line_alignment[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(erts_smp_rwmtx_t))];
     }lck_vec[DB_HASH_LOCK_CNT];
 } DbTableHashFineLocks;
 
@@ -104,6 +104,7 @@ typedef struct {
     float std_dev_expected;
     int max_chain_len;
     int min_chain_len;
+    int kept_items;
 }DbHashStats;
 
 void db_calc_stats_hash(DbTableHash* tb, DbHashStats*);
diff --git a/erts/emulator/beam/erl_db_tree.c b/erts/emulator/beam/erl_db_tree.c
index a62a83a928..c7bccc78c3 100644
--- a/erts/emulator/beam/erl_db_tree.c
+++ b/erts/emulator/beam/erl_db_tree.c
@@ -383,6 +383,7 @@ static int db_select_delete_tree(Process *p, DbTable *tbl,
 				 Eterm pattern,  Eterm *ret);
 static int db_select_delete_continue_tree(Process *p, DbTable *tbl, 
 					  Eterm continuation, Eterm *ret);
+static int db_take_tree(Process *, DbTable *, Eterm, Eterm *);
 static void db_print_tree(int to, void *to_arg,
 			  int show, DbTable *tbl);
 static int db_free_table_tree(DbTable *tbl);
@@ -398,8 +399,11 @@ static int db_delete_all_objects_tree(Process* p, DbTable* tbl);
 #ifdef HARDDEBUG
 static void db_check_table_tree(DbTable *tbl);
 #endif
-static int db_lookup_dbterm_tree(DbTable *, Eterm key, DbUpdateHandle*);
-static void db_finalize_dbterm_tree(DbUpdateHandle*);
+static int
+db_lookup_dbterm_tree(Process *, DbTable *, Eterm key, Eterm obj,
+                      DbUpdateHandle*);
+static void
+db_finalize_dbterm_tree(int cret, DbUpdateHandle *);
 
 /*
 ** Static variables
@@ -431,6 +435,7 @@ DbTableMethod db_tree =
     db_select_delete_continue_tree,
     db_select_count_tree,
     db_select_count_continue_tree,
+    db_take_tree,
     db_delete_all_objects_tree,
     db_free_table_tree,
     db_free_table_continue_tree,
@@ -1111,7 +1116,7 @@ static int db_select_tree(Process *p, DbTable *tbl,
     sc.all_objects = mpi.all_objects;
 
     if (!mpi.got_partial && mpi.some_limitation && 
-	CMP(mpi.least,mpi.most) == 0) {
+	CMP_EQ(mpi.least,mpi.most)) {
 	doit_select(tb,mpi.save_term,&sc,0 /* direction doesn't matter */);
 	RET_TO_BIF(sc.accum,DB_ERROR_NONE);
     }
@@ -1319,7 +1324,7 @@ static int db_select_count_tree(Process *p, DbTable *tbl,
     sc.all_objects = mpi.all_objects;
 
     if (!mpi.got_partial && mpi.some_limitation && 
-	CMP(mpi.least,mpi.most) == 0) {
+	CMP_EQ(mpi.least,mpi.most)) {
 	doit_select_count(tb,mpi.save_term,&sc,0 /* dummy */);
 	RET_TO_BIF(erts_make_integer(sc.got,p),DB_ERROR_NONE);
     }
@@ -1424,7 +1429,7 @@ static int db_select_chunk_tree(Process *p, DbTable *tbl,
     sc.all_objects = mpi.all_objects;
 
     if (!mpi.got_partial && mpi.some_limitation && 
-	CMP(mpi.least,mpi.most) == 0) {
+	CMP_EQ(mpi.least,mpi.most)) {
 	doit_select(tb,mpi.save_term,&sc, 0 /* direction doesn't matter */);
 	if (sc.accum != NIL) {
 	    hp=HAlloc(p, 3);
@@ -1668,7 +1673,7 @@ static int db_select_delete_tree(Process *p, DbTable *tbl,
     sc.mp = mpi.mp;
 
     if (!mpi.got_partial && mpi.some_limitation && 
-	CMP(mpi.least,mpi.most) == 0) {
+	CMP_EQ(mpi.least,mpi.most)) {
 	doit_select_delete(tb,mpi.save_term,&sc, 0 /* direction doesn't 
 						      matter */);
 	RET_TO_BIF(erts_make_integer(sc.accum,p),DB_ERROR_NONE);
@@ -1722,6 +1727,28 @@ static int db_select_delete_tree(Process *p, DbTable *tbl,
 
 }
 
+static int db_take_tree(Process *p, DbTable *tbl, Eterm key, Eterm *ret)
+{
+    DbTableTree *tb = &tbl->tree;
+    TreeDbTerm *this;
+
+    *ret = NIL;
+    this = linkout_tree(tb, key, NULL);
+    if (this) {
+        Eterm copy, *hp, *hend;
+
+        hp = HAlloc(p, this->dbterm.size + 2);
+        hend = hp + this->dbterm.size + 2;
+        copy = db_copy_object_from_ets(&tb->common,
+                                       &this->dbterm, &hp, &MSO(p));
+        *ret = CONS(hp, copy, NIL);
+        hp += 2;
+        HRelease(p, hend, hp);
+        free_term(tb, this);
+    }
+    return DB_ERROR_NONE;
+}
+
 /*
 ** Other interface routines (not directly coupled to one bif)
 */
@@ -2522,16 +2549,43 @@ static TreeDbTerm **find_node2(DbTableTree *tb, Eterm key)
     return this;
 }
 
-static int db_lookup_dbterm_tree(DbTable *tbl, Eterm key, DbUpdateHandle* handle)
+static int
+db_lookup_dbterm_tree(Process *p, DbTable *tbl, Eterm key, Eterm obj,
+                      DbUpdateHandle* handle)
 {
     DbTableTree *tb = &tbl->tree;
     TreeDbTerm **pp = find_node2(tb, key);
-
-    if (pp == NULL) return 0;
+    int flags = 0;
+
+    if (pp == NULL) {
+        if (obj == THE_NON_VALUE) {
+            return 0;
+        } else {
+            Eterm *objp = tuple_val(obj);
+            int arity = arityval(*objp);
+            Eterm *htop, *hend;
+
+            ASSERT(arity >= tb->common.keypos);
+            htop = HAlloc(p, arity + 1);
+            hend = htop + arity + 1;
+            sys_memcpy(htop, objp, sizeof(Eterm) * (arity + 1));
+            htop[tb->common.keypos] = key;
+            obj = make_tuple(htop);
+
+            if (db_put_tree(tbl, obj, 1) != DB_ERROR_NONE) {
+                return 0;
+            }
+
+            pp = find_node2(tb, key);
+            ASSERT(pp != NULL);
+            HRelease(p, hend, htop);
+            flags |= DB_NEW_OBJECT;
+        }
+    }
 
     handle->tb = tbl;
     handle->dbterm = &(*pp)->dbterm;
-    handle->mustResize = 0;
+    handle->flags = flags;
     handle->bp = (void**) pp;
     handle->new_size = (*pp)->dbterm.size;
 #if HALFWORD_HEAP
@@ -2540,15 +2594,21 @@ static int db_lookup_dbterm_tree(DbTable *tbl, Eterm key, DbUpdateHandle* handle
     return 1;
 }
 
-static void db_finalize_dbterm_tree(DbUpdateHandle* handle)
+static void
+db_finalize_dbterm_tree(int cret, DbUpdateHandle *handle)
 {
-    if (handle->mustResize) {
-	TreeDbTerm* oldp = (TreeDbTerm*) *handle->bp;
+    DbTable *tbl = handle->tb;
+    DbTableTree *tb = &tbl->tree;
+    TreeDbTerm *bp = (TreeDbTerm *) *handle->bp;
 
+    if (handle->flags & DB_NEW_OBJECT && cret != DB_ERROR_NONE) {
+        Eterm ret;
+        db_erase_tree(tbl, GETKEY(tb, bp->dbterm.tpl), &ret);
+    } else if (handle->flags & DB_MUST_RESIZE) {
 	db_finalize_resize(handle, offsetof(TreeDbTerm,dbterm));
-	reset_static_stack(&handle->tb->tree);
+        reset_static_stack(tb);
 
-	free_term(&handle->tb->tree, oldp);
+        free_term(tb, bp);
     }
 #ifdef DEBUG
     handle->dbterm = 0;
@@ -2656,7 +2716,7 @@ static int key_given(DbTableTree *tb, Eterm pattern, TreeDbTerm **ret,
 	*ret = this;
 	return 1;
     } else if (partly_bound != NULL && key != am_Underscore && 
-	       db_is_variable(key) < 0)
+	       db_is_variable(key) < 0 && !db_has_map(key))
 	*partly_bound = key;
 	
     return 0;
diff --git a/erts/emulator/beam/erl_db_util.c b/erts/emulator/beam/erl_db_util.c
index 3927615e04..c6c3c55a7e 100644
--- a/erts/emulator/beam/erl_db_util.c
+++ b/erts/emulator/beam/erl_db_util.c
@@ -198,11 +198,6 @@ set_match_trace(Process *tracee_p, Eterm fail_term, Eterm tracer,
     return ret;
 }
 
-
-/* Type checking... */
-
-#define BOXED_IS_TUPLE(Boxed) is_arity_value(*boxed_val((Boxed)))
-
 /*
 **
 ** Types and enum's (compiled matches)
@@ -218,7 +213,9 @@ typedef enum {
     matchTuple,
     matchPushT,
     matchPushL,
+    matchPushM,
     matchPop,
+    matchSwap,
     matchBind,
     matchCmp,
     matchEqBin,
@@ -227,11 +224,15 @@ typedef enum {
     matchEqRef,
     matchEq,
     matchList,
+    matchMap,
+    matchKey,
     matchSkip,
     matchPushC,
     matchConsA, /* Car is below Cdr */
     matchConsB, /* Cdr is below Car (unusual) */
     matchMkTuple,
+    matchMkFlatMap,
+    matchMkHashMap,
     matchCall0,
     matchCall1,
     matchCall2,
@@ -856,6 +857,13 @@ static int match_compact(ErlHeapFragment *expr, DMCErrInfo *err_info);
 static Uint my_size_object(Eterm t);
 static Eterm my_copy_struct(Eterm t, Eterm **hp, ErlOffHeap* off_heap);
 
+/* Guard subroutines */
+static void
+dmc_rearrange_constants(DMCContext *context, DMC_STACK_TYPE(UWord) *text,
+                        int textpos, Eterm *p, Uint nelems);
+static DMCRet
+dmc_array(DMCContext *context, DMCHeap *heap, DMC_STACK_TYPE(UWord) *text,
+          Eterm *p, Uint nelems, int *constant);
 /* Guard compilation */
 static void do_emit_constant(DMCContext *context, DMC_STACK_TYPE(UWord) *text,
 			     Eterm t);
@@ -869,6 +877,9 @@ static DMCRet dmc_tuple(DMCContext *context,
 		       DMC_STACK_TYPE(UWord) *text,
 		       Eterm t,
 		       int *constant);
+static DMCRet
+dmc_map(DMCContext *context, DMCHeap *heap, DMC_STACK_TYPE(UWord) *text,
+        Eterm t, int *constant);
 static DMCRet dmc_variable(DMCContext *context,
 			   DMCHeap *heap,
 			   DMC_STACK_TYPE(UWord) *text,
@@ -888,12 +899,14 @@ static DMCRet compile_guard_expr(DMCContext *context,
 				    DMCHeap *heap,
 				    DMC_STACK_TYPE(UWord) *text,
 				    Eterm t);
-/* match expression subroutine */
+/* match expression subroutines */
 static DMCRet dmc_one_term(DMCContext *context, 
 			   DMCHeap *heap,
 			   DMC_STACK_TYPE(Eterm) *stack,
 			   DMC_STACK_TYPE(UWord) *text,
 			   Eterm c);
+static Eterm
+dmc_private_copy(DMCContext *context, Eterm c);
 
 
 #ifdef DMC_DEBUG
@@ -1364,7 +1377,112 @@ restart:
 	for (;;) {
 	    switch (t & _TAG_PRIMARY_MASK) {
 	    case TAG_PRIMARY_BOXED:
-		if (!BOXED_IS_TUPLE(t)) {
+                if (is_flatmap(t)) {
+                    num_iters = flatmap_get_size(flatmap_val(t));
+                    if (!structure_checked) {
+                        DMC_PUSH(text, matchMap);
+                        DMC_PUSH(text, num_iters);
+                    }
+                    structure_checked = 0;
+                    for (i = 0; i < num_iters; ++i) {
+                        Eterm key = flatmap_get_keys(flatmap_val(t))[i];
+                        if (db_is_variable(key) >= 0) {
+                            if (context.err_info) {
+                                add_dmc_err(context.err_info,
+                                            "Variable found in map key.",
+                                            -1, 0UL, dmcError);
+                            }
+                            goto error;
+                        } else if (key == am_Underscore) {
+                            if (context.err_info) {
+                                add_dmc_err(context.err_info,
+                                            "Underscore found in map key.",
+                                            -1, 0UL, dmcError);
+                            }
+                            goto error;
+                        }
+                        DMC_PUSH(text, matchKey);
+                        DMC_PUSH(text, dmc_private_copy(&context, key));
+                        {
+                            int old_stack = ++(context.stack_used);
+                            Eterm value = flatmap_get_values(flatmap_val(t))[i];
+                            res = dmc_one_term(&context, &heap, &stack, &text,
+                                               value);
+                            ASSERT(res != retFail);
+                            if (res == retRestart) {
+                                goto restart;
+                            }
+                            if (old_stack != context.stack_used) {
+                                ASSERT(old_stack + 1 == context.stack_used);
+                                DMC_PUSH(text, matchSwap);
+                            }
+                            if (context.stack_used > context.stack_need) {
+                                context.stack_need = context.stack_used;
+                            }
+                            DMC_PUSH(text, matchPop);
+                            --(context.stack_used);
+                        }
+                    }
+                    break;
+                }
+                if (is_hashmap(t)) {
+                    DECLARE_WSTACK(wstack);
+                    Eterm *kv;
+                    num_iters = hashmap_size(t);
+                    if (!structure_checked) {
+                        DMC_PUSH(text, matchMap);
+                        DMC_PUSH(text, num_iters);
+                    }
+                    structure_checked = 0;
+
+                    hashmap_iterator_init(&wstack, t, 0);
+
+                    while ((kv=hashmap_iterator_next(&wstack)) != NULL) {
+                        Eterm key = CAR(kv);
+                        Eterm value = CDR(kv);
+                        if (db_is_variable(key) >= 0) {
+                            if (context.err_info) {
+                                add_dmc_err(context.err_info,
+                                        "Variable found in map key.",
+                                        -1, 0UL, dmcError);
+                            }
+                            DESTROY_WSTACK(wstack);
+                            goto error;
+                        } else if (key == am_Underscore) {
+                            if (context.err_info) {
+                                add_dmc_err(context.err_info,
+                                        "Underscore found in map key.",
+                                        -1, 0UL, dmcError);
+                            }
+                            DESTROY_WSTACK(wstack);
+                            goto error;
+                        }
+                        DMC_PUSH(text, matchKey);
+                        DMC_PUSH(text, dmc_private_copy(&context, key));
+                        {
+                            int old_stack = ++(context.stack_used);
+                            res = dmc_one_term(&context, &heap, &stack, &text,
+                                               value);
+                            ASSERT(res != retFail);
+                            if (res == retRestart) {
+                                DESTROY_WSTACK(wstack);
+                                goto restart;
+                            }
+                            if (old_stack != context.stack_used) {
+                                ASSERT(old_stack + 1 == context.stack_used);
+                                DMC_PUSH(text, matchSwap);
+                            }
+                            if (context.stack_used > context.stack_need) {
+                                context.stack_need = context.stack_used;
+                            }
+                            DMC_PUSH(text, matchPop);
+                            --(context.stack_used);
+                        }
+                    }
+                    DESTROY_WSTACK(wstack);
+                    break;
+                }
+		if (!is_tuple(t)) {
 		    goto simple_term;
 		}
 		num_iters = arityval(*tuple_val(t));
@@ -1715,10 +1833,8 @@ Eterm db_prog_match(Process *c_p, Binary *bprog,
 		    Uint32 *return_flags)
 {
     MatchProg *prog = Binary2MatchProg(bprog);
-    Eterm *ep;
-    Eterm *tp;
+    const Eterm *ep, *tp, **sp;
     Eterm t;
-    Eterm **sp;
     Eterm *esp;
     MatchVariable* variables;
     BeamInstr *cp;
@@ -1808,7 +1924,7 @@ Eterm db_prog_match(Process *c_p, Binary *bprog,
 restart:
     ep = &term;
     esp = (Eterm*)((char*)mpsp->u.heap + prog->stack_offset);
-    sp = (Eterm **) esp;
+    sp = (const Eterm **)esp;
     ret = am_true;
     do_catch = 0;
     fail_label = -1;
@@ -1887,9 +2003,57 @@ restart:
 	    *sp++ = list_val_rel(*ep,base);
 	    ++ep;
 	    break;
+        case matchMap:
+            if (!is_map_rel(*ep, base)) {
+                FAIL();
+            }
+            n = *pc++;
+            if (is_flatmap_rel(*ep,base)) {
+		if (flatmap_get_size(flatmap_val_rel(*ep, base)) < n) {
+		    FAIL();
+		}
+            } else {
+		ASSERT(is_hashmap_rel(*ep,base));
+		if (hashmap_size_rel(*ep, base) < n) {
+		    FAIL();
+		}
+	    }
+            ep = flatmap_val_rel(*ep, base);
+            break;
+        case matchPushM:
+            if (!is_map_rel(*ep, base)) {
+                FAIL();
+            }
+            n = *pc++;
+            if (is_flatmap_rel(*ep,base)) {
+		if (flatmap_get_size(flatmap_val_rel(*ep, base)) < n) {
+		    FAIL();
+		}
+	    } else {
+		ASSERT(is_hashmap_rel(*ep,base));
+		if (hashmap_size_rel(*ep, base) < n) {
+		    FAIL();
+		}
+	    }
+            *sp++ = flatmap_val_rel(*ep++, base);
+            break;
+        case matchKey:
+            t = (Eterm) *pc++;
+            tp = erts_maps_get_rel(t, make_boxed_rel(ep, base), base);
+            if (!tp) {
+                FAIL();
+            }
+            *sp++ = ep;
+            ep = tp;
+            break;
 	case matchPop:
 	    ep = *(--sp);
 	    break;
+        case matchSwap:
+            tp = sp[-1];
+            sp[-1] = sp[-2];
+            sp[-2] = tp;
+            break;
 	case matchBind:
 	    n = *pc++;
 	    variables[n].term = *ep++;
@@ -1987,6 +2151,38 @@ restart:
 	    }
 	    *esp++ = t;
 	    break;
+        case matchMkFlatMap:
+            n = *pc++;
+            ehp = HAllocX(build_proc, MAP_HEADER_FLATMAP_SZ + n, HEAP_XTRA);
+            t = *--esp;
+            {
+                flatmap_t *m = (flatmap_t *)ehp;
+                m->thing_word = MAP_HEADER_FLATMAP;
+                m->size = n;
+                m->keys = t;
+            }
+            t = make_flatmap(ehp);
+            ehp += MAP_HEADER_FLATMAP_SZ;
+            while (n--) {
+                *ehp++ = *--esp;
+            }
+            *esp++ = t;
+            break;
+        case matchMkHashMap:
+            n = *pc++;
+            esp -= 2*n;
+            ehp = HAllocX(build_proc, 2*n, HEAP_XTRA);
+            {
+                ErtsHeapFactory factory;
+                Uint ix;
+                factory.p = build_proc;
+                for (ix = 0; ix < 2*n; ix++){
+                    ehp[ix] = esp[ix];
+                }
+                t = erts_hashmap_from_array(&factory, ehp, n, 0);
+            }
+            *esp++ = t;
+            break;
 	case matchCall0:
 	    bif = (Eterm (*)(Process*, ...)) *pc++;
 	    t = (*bif)(build_proc, bif_args);
@@ -2601,10 +2797,10 @@ Wterm db_do_read_element(DbUpdateHandle* handle, Sint position)
     }
 
     ASSERT(((DbTableCommon*)handle->tb)->compress);
-    ASSERT(!handle->mustResize);
+    ASSERT(!(handle->flags & DB_MUST_RESIZE));
     handle->dbterm = db_alloc_tmp_uncompressed(&handle->tb->common,
 					       handle->dbterm);
-    handle->mustResize = 1;
+    handle->flags |= DB_MUST_RESIZE;
     return handle->dbterm->tpl[position];
 }
 
@@ -2637,11 +2833,11 @@ void db_do_update_element(DbUpdateHandle* handle,
     #endif
 	return;
     }
-    if (!handle->mustResize) {
+    if (!(handle->flags & DB_MUST_RESIZE)) {
 	if (handle->tb->common.compress) {
 	    handle->dbterm = db_alloc_tmp_uncompressed(&handle->tb->common,
 						       handle->dbterm);
-	    handle->mustResize = 1;
+	    handle->flags |= DB_MUST_RESIZE;
 	    oldval = handle->dbterm->tpl[position];
         #if HALFWORD_HEAP
 	    old_base = NULL;
@@ -2701,7 +2897,7 @@ both_size_set:
 
     /* write new value in old dbterm, finalize will make a flat copy */
     handle->dbterm->tpl[position] = newval;
-    handle->mustResize = 1;
+    handle->flags |= DB_MUST_RESIZE;
 
 #if HALFWORD_HEAP
     if (old_base && newval_sz > 0) {
@@ -3151,39 +3347,86 @@ int db_is_variable(Eterm obj)
     return N;
 }
 
+/* check if node is (or contains) a map
+ * return 1 if node contains a map
+ * return 0 otherwise
+ */
+
+int db_has_map(Eterm node) {
+    DECLARE_ESTACK(s);
+
+    ESTACK_PUSH(s,node);
+    while (!ESTACK_ISEMPTY(s)) {
+	node = ESTACK_POP(s);
+        if (is_list(node)) {
+	    while (is_list(node)) {
+		ESTACK_PUSH(s,CAR(list_val(node)));
+		node = CDR(list_val(node));
+	    }
+	    ESTACK_PUSH(s,node);    /* Non wellformed list or [] */
+        } else if (is_tuple(node)) {
+            Eterm *tuple = tuple_val(node);
+            int arity = arityval(*tuple);
+            while(arity--) {
+                ESTACK_PUSH(s,*(++tuple));
+            }
+        } else if is_map(node) {
+            DESTROY_ESTACK(s);
+            return 1;
+        }
+    }
+    DESTROY_ESTACK(s);
+    return 0;
+}
 
 /* check if obj is (or contains) a variable */
 /* return 1 if obj contains a variable or underscore */
 /* return 0 if obj is fully ground                   */
 
-int db_has_variable(Eterm obj)
-{
-    switch(obj & _TAG_PRIMARY_MASK) {
-    case TAG_PRIMARY_LIST: {
-	while (is_list(obj)) {
-	    if (db_has_variable(CAR(list_val(obj))))
+int db_has_variable(Eterm node) {
+    DECLARE_ESTACK(s);
+
+    ESTACK_PUSH(s,node);
+    while (!ESTACK_ISEMPTY(s)) {
+	node = ESTACK_POP(s);
+	switch(node & _TAG_PRIMARY_MASK) {
+	case TAG_PRIMARY_LIST:
+	    while (is_list(node)) {
+		ESTACK_PUSH(s,CAR(list_val(node)));
+		node = CDR(list_val(node));
+	    }
+	    ESTACK_PUSH(s,node);    /* Non wellformed list or [] */
+	    break;
+	case TAG_PRIMARY_BOXED:
+	    if (is_tuple(node)) {
+		Eterm *tuple = tuple_val(node);
+		int arity = arityval(*tuple);
+		while(arity--) {
+		    ESTACK_PUSH(s,*(++tuple));
+		}
+            } else if (is_flatmap(node)) {
+                Eterm *values = flatmap_get_values(flatmap_val(node));
+                Uint size = flatmap_get_size(flatmap_val(node));
+                ESTACK_PUSH(s, ((flatmap_t *) flatmap_val(node))->keys);
+                while (size--) {
+                    ESTACK_PUSH(s, *(values++));
+                }
+            } else if (is_map(node)) { /* other map-nodes or map-heads */
+                Eterm *ptr = hashmap_val(node);
+                int i = hashmap_bitcount(MAP_HEADER_VAL(*ptr));
+                ptr += MAP_HEADER_ARITY(*ptr);
+                while(i--) { ESTACK_PUSH(s, *++ptr); }
+            }
+	    break;
+	case TAG_PRIMARY_IMMED1:
+	    if (node == am_Underscore || db_is_variable(node) >= 0) {
+		DESTROY_ESTACK(s);
 		return 1;
-	    obj = CDR(list_val(obj));
-	}
-	return(db_has_variable(obj));  /* Non wellformed list or [] */
-    }
-    case TAG_PRIMARY_BOXED: 
-	if (!BOXED_IS_TUPLE(obj)) {
-	    return 0;
-	} else {
-	    Eterm *tuple = tuple_val(obj);
-	    int arity = arityval(*tuple++);
-	    while(arity--) {
-		if (db_has_variable(*tuple))
-		    return 1;
-		tuple++;
 	    }
-	    return(0);
+	    break;
 	}
-    case TAG_PRIMARY_IMMED1:
-	if (obj == am_Underscore || db_is_variable(obj) >= 0)
-	    return 1;
     }
+    DESTROY_ESTACK(s);
     return 0;
 }
 
@@ -3243,11 +3486,9 @@ static DMCRet dmc_one_term(DMCContext *context,
 {
     Sint n;
     Eterm *hp;
-    ErlHeapFragment *tmp_mb;
     Uint sz, sz2, sz3;
     Uint i, j;
 
-
     switch (c & _TAG_PRIMARY_MASK) {
     case TAG_PRIMARY_IMMED1:
 	if ((n = db_is_variable(c)) >= 0) { /* variable */
@@ -3334,6 +3575,16 @@ static DMCRet dmc_one_term(DMCContext *context,
 	    DMC_PUSH(*text, n);
 	    DMC_PUSH(*stack, c);
 	    break;
+        case (_TAG_HEADER_MAP >> _TAG_PRIMARY_SIZE):
+            if (is_flatmap(c))
+                n = flatmap_get_size(flatmap_val(c));
+            else
+                n = hashmap_size(c);
+            DMC_PUSH(*text, matchPushM);
+            ++(context->stack_used);
+            DMC_PUSH(*text, n);
+            DMC_PUSH(*stack, c);
+            break;
 	case (_TAG_HEADER_REF >> _TAG_PRIMARY_SIZE):
 	{
 	    Eterm* ref_val = internal_ref_val(c);
@@ -3415,16 +3666,8 @@ static DMCRet dmc_one_term(DMCContext *context,
 #endif
 	    break;
 	default: /* BINARY, FUN, VECTOR, or EXTERNAL */
-	    /*
-	    ** Make a private copy...
-	    */
-	    n = size_object(c);
-	    tmp_mb = new_message_buffer(n);
-	    hp = tmp_mb->mem;
 	    DMC_PUSH(*text, matchEqBin);
-	    DMC_PUSH(*text, copy_struct(c, n, &hp, &(tmp_mb->off_heap)));
-	    tmp_mb->next = context->save;
-	    context->save = tmp_mb;
+            DMC_PUSH(*text, dmc_private_copy(context, c));
 	    break;
 	}
 	break;
@@ -3437,6 +3680,22 @@ static DMCRet dmc_one_term(DMCContext *context,
 }
 
 /*
+** Make a private copy of a term in a context.
+*/
+
+static Eterm
+dmc_private_copy(DMCContext *context, Eterm c)
+{
+    Uint n = size_object(c);
+    ErlHeapFragment *tmp_mb = new_message_buffer(n);
+    Eterm *hp = tmp_mb->mem;
+    Eterm copy = copy_struct(c, n, &hp, &(tmp_mb->off_heap));
+    tmp_mb->next = context->save;
+    context->save = tmp_mb;
+    return copy;
+}
+
+/*
 ** Match guard compilation
 */
 
@@ -3527,57 +3786,78 @@ static DMCRet dmc_list(DMCContext *context,
     return retOk;
 }
 
-static DMCRet dmc_tuple(DMCContext *context,
-		       DMCHeap *heap,
-		       DMC_STACK_TYPE(UWord) *text,
-		       Eterm t,
-		       int *constant)
+static void
+dmc_rearrange_constants(DMCContext *context, DMC_STACK_TYPE(UWord) *text,
+                        int textpos, Eterm *p, Uint nelems)
 {
     DMC_STACK_TYPE(UWord) instr_save;
+    Uint i;
+
+    DMC_INIT_STACK(instr_save);
+    while (DMC_STACK_NUM(*text) > textpos) {
+        DMC_PUSH(instr_save, DMC_POP(*text));
+    }
+    for (i = nelems; i--;) {
+        do_emit_constant(context, text, p[i]);
+    }
+    while(!DMC_EMPTY(instr_save)) {
+        DMC_PUSH(*text, DMC_POP(instr_save));
+    }
+    DMC_FREE(instr_save);
+}
+
+static DMCRet
+dmc_array(DMCContext *context, DMCHeap *heap, DMC_STACK_TYPE(UWord) *text,
+          Eterm *p, Uint nelems, int *constant)
+{
     int all_constant = 1;
     int textpos = DMC_STACK_NUM(*text);
-    Eterm *p = tuple_val(t);
-    Uint nelems = arityval(*p);
     Uint i;
-    int c;
-    DMCRet ret;
 
     /*
-    ** We remember where we started to layout code, 
+    ** We remember where we started to layout code,
     ** assume all is constant and back up and restart if not so.
-    ** The tuple should be laid out with the last element first,
-    ** so we can memcpy the tuple to the eheap.
+    ** The array should be laid out with the last element first,
+    ** so we can memcpy it to the eheap.
     */
-    for (i = nelems; i > 0; --i) {
-	if ((ret = dmc_expr(context, heap, text, p[i], &c)) != retOk)
-	    return ret;
-	if (!c && all_constant) {
-	    all_constant = 0;
-	    if (i < nelems) {
-		Uint j;
+    for (i = nelems; i--;) {
+        DMCRet ret;
+        int c;
 
-		/*
-		 * Oops, we need to relayout the constants.
-		 * Save the already laid out instructions.
-		 */
-		DMC_INIT_STACK(instr_save);
-		while (DMC_STACK_NUM(*text) > textpos) 
-		    DMC_PUSH(instr_save, DMC_POP(*text));
-		for (j = nelems; j > i; --j)
-		    do_emit_constant(context, text, p[j]);
-		while(!DMC_EMPTY(instr_save))
-		    DMC_PUSH(*text, DMC_POP(instr_save));
-		DMC_FREE(instr_save);
-	    }
-	} else if (c && !all_constant) {
-	    /* push a constant */
-	    do_emit_constant(context, text, p[i]);
-	}
+        ret = dmc_expr(context, heap, text, p[i], &c);
+        if (ret != retOk) {
+            return ret;
+        }
+        if (!c && all_constant) {
+            all_constant = 0;
+            if (i < nelems - 1) {
+                dmc_rearrange_constants(context, text, textpos,
+                                        p + i + 1, nelems - i - 1);
+            }
+        } else if (c && !all_constant) {
+            do_emit_constant(context, text, p[i]);
+        }
+    }
+    *constant = all_constant;
+    return retOk;
+}
+
+static DMCRet
+dmc_tuple(DMCContext *context, DMCHeap *heap, DMC_STACK_TYPE(UWord) *text,
+          Eterm t, int *constant)
+{
+    int all_constant;
+    Eterm *p = tuple_val(t);
+    Uint nelems = arityval(*p);
+    DMCRet ret;
+
+    ret = dmc_array(context, heap, text, p + 1, nelems, &all_constant);
+    if (ret != retOk) {
+        return ret;
     }
-    
     if (all_constant) {
-	*constant = 1;
-	return retOk;
+        *constant = 1;
+        return retOk;
     }
     DMC_PUSH(*text, matchMkTuple);
     DMC_PUSH(*text, nelems);
@@ -3586,6 +3866,93 @@ static DMCRet dmc_tuple(DMCContext *context,
     return retOk;
 }
 
+static DMCRet
+dmc_map(DMCContext *context, DMCHeap *heap, DMC_STACK_TYPE(UWord) *text,
+        Eterm t, int *constant)
+{
+    int nelems;
+    int constant_values;
+    DMCRet ret;
+    if (is_flatmap(t)) {
+        flatmap_t *m = (flatmap_t *)flatmap_val(t);
+        Eterm *values = flatmap_get_values(m);
+
+        nelems = flatmap_get_size(m);
+        ret = dmc_array(context, heap, text, values, nelems, &constant_values);
+
+        if (ret != retOk) {
+            return ret;
+        }
+        if (constant_values) {
+            *constant = 1;
+            return retOk;
+        }
+        DMC_PUSH(*text, matchPushC);
+        DMC_PUSH(*text, dmc_private_copy(context, m->keys));
+        if (++context->stack_used > context->stack_need) {
+            context->stack_need = context->stack_used;
+        }
+        DMC_PUSH(*text, matchMkFlatMap);
+        DMC_PUSH(*text, nelems);
+        context->stack_used -= nelems;
+        *constant = 0;
+        return retOk;
+    } else {
+        DECLARE_WSTACK(wstack);
+        Eterm *kv;
+        int c;
+
+        ASSERT(is_hashmap(t));
+
+        hashmap_iterator_init(&wstack, t, 1);
+        constant_values = 1;
+        nelems = hashmap_size(t);
+
+        while ((kv=hashmap_iterator_prev(&wstack)) != NULL) {
+            if ((ret = dmc_expr(context, heap, text, CDR(kv), &c)) != retOk) {
+                DESTROY_WSTACK(wstack);
+                return ret;
+            }
+            if (!c)
+                constant_values = 0;
+        }
+
+        if (constant_values) {
+            *constant = 1;
+            DESTROY_WSTACK(wstack);
+            return retOk;
+        }
+
+        *constant = 0;
+
+        hashmap_iterator_init(&wstack, t, 1);
+
+        while ((kv=hashmap_iterator_prev(&wstack)) != NULL) {
+            /* push key */
+            if ((ret = dmc_expr(context, heap, text, CAR(kv), &c)) != retOk) {
+                DESTROY_WSTACK(wstack);
+                return ret;
+            }
+            if (c) {
+                do_emit_constant(context, text, CAR(kv));
+            }
+            /* push value */
+            if ((ret = dmc_expr(context, heap, text, CDR(kv), &c)) != retOk) {
+                DESTROY_WSTACK(wstack);
+                return ret;
+            }
+            if (c) {
+                do_emit_constant(context, text, CDR(kv));
+            }
+        }
+        DMC_PUSH(*text, matchMkHashMap);
+        DMC_PUSH(*text, nelems);
+        context->stack_used -= nelems;
+        DESTROY_WSTACK(wstack);
+        return retOk;
+    }
+}
+
 static DMCRet dmc_whole_expression(DMCContext *context,
 				   DMCHeap *heap,
 				   DMC_STACK_TYPE(UWord) *text,
@@ -4580,7 +4947,10 @@ static DMCRet dmc_expr(DMCContext *context,
 	    return ret;
 	break;
     case TAG_PRIMARY_BOXED:
-	if (!BOXED_IS_TUPLE(t)) {
+        if (is_map(t)) {
+            return dmc_map(context, heap, text, t, constant);
+        }
+	if (!is_tuple(t)) {
 	    goto simple_term;
 	}
 	p = tuple_val(t);
@@ -4855,7 +5225,7 @@ static Eterm my_copy_struct(Eterm t, Eterm **hp, ErlOffHeap* off_heap)
 	*hp += 2;
 	break;
     case TAG_PRIMARY_BOXED:
-	if (BOXED_IS_TUPLE(t)) {
+	if (is_tuple(t)) {
 	    if (arityval(*tuple_val(t)) == 1 && 
 		is_tuple(a = tuple_val(t)[1])) {
 		Uint i,n;
@@ -5126,6 +5496,18 @@ void db_match_dis(Binary *bp)
 	    ++t;
 	    erts_printf("Tuple\t%beu\n", n);
 	    break;
+        case matchMap:
+            ++t;
+            n = *t;
+            ++t;
+            erts_printf("Map\t%beu\n", n);
+            break;
+        case matchKey:
+            ++t;
+            p = (Eterm) *t;
+            ++t;
+            erts_printf("Key\t%p (%T)\n", t, p);
+            break;
 	case matchPushT:
 	    ++t;
 	    n = *t;
@@ -5136,10 +5518,20 @@ void db_match_dis(Binary *bp)
 	    ++t;
 	    erts_printf("PushL\n");
 	    break;
+        case matchPushM:
+            ++t;
+            n = *t;
+            ++t;
+            erts_printf("PushM\t%beu\n", n);
+            break;
 	case matchPop:
 	    ++t;
 	    erts_printf("Pop\n");
 	    break;
+        case matchSwap:
+            ++t;
+            erts_printf("Swap\n");
+            break;
 	case matchBind:
 	    ++t;
 	    n = *t;
@@ -5252,6 +5644,18 @@ void db_match_dis(Binary *bp)
 	    ++t;
 	    erts_printf("MkTuple\t%beu\n", n);
 	    break;
+        case matchMkFlatMap:
+            ++t;
+            n = *t;
+            ++t;
+            erts_printf("MkFlatMap\t%beu\n", n);
+            break;
+        case matchMkHashMap:
+            ++t;
+            n = *t;
+            ++t;
+            erts_printf("MkHashMap\t%beu\n", n);
+            break;
 	case matchOr:
 	    ++t;
 	    n = *t;
diff --git a/erts/emulator/beam/erl_db_util.h b/erts/emulator/beam/erl_db_util.h
index 328b19dfc9..b2d5a306cb 100644
--- a/erts/emulator/beam/erl_db_util.h
+++ b/erts/emulator/beam/erl_db_util.h
@@ -76,6 +76,9 @@ typedef struct db_term {
 union db_table;
 typedef union db_table DbTable;
 
+#define DB_MUST_RESIZE 1
+#define DB_NEW_OBJECT 2
+
 /* Info about a database entry while it's being updated
  * (by update_counter or update_element)
  */
@@ -84,7 +87,7 @@ typedef struct {
     DbTerm* dbterm;
     void** bp;         /* {Hash|Tree}DbTerm** */
     Uint new_size;
-    int mustResize;
+    int flags;
     void* lck;
 #if HALFWORD_HEAP
     unsigned char* abs_vec;  /* [i] true if dbterm->tpl[i] is absolute Eterm */
@@ -165,6 +168,7 @@ typedef struct db_table_method
 				    DbTable* tb, /* [in out] */ 
 				    Eterm continuation, 
 				    Eterm* ret);
+    int (*db_take)(Process *, DbTable *, Eterm, Eterm *);
 
     int (*db_delete_all_objects)(Process* p,
 				 DbTable* db /* [in out] */ );
@@ -182,15 +186,14 @@ typedef struct db_table_method
 			       void *arg);
     void (*db_check_table)(DbTable* tb);
 
-    /* Lookup a dbterm for updating. Return false if not found.
-    */
-    int (*db_lookup_dbterm)(DbTable*, Eterm key, 
-			    DbUpdateHandle* handle); /* [out] */
+    /* Lookup a dbterm for updating. Return false if not found. */
+    int (*db_lookup_dbterm)(Process *, DbTable *, Eterm key, Eterm obj,
+                            DbUpdateHandle* handle);
 
-    /* Must be called for each db_lookup_dbterm that returned true,
-    ** even if dbterm was not updated.
-    */
-    void (*db_finalize_dbterm)(DbUpdateHandle* handle);
+    /* Must be called for each db_lookup_dbterm that returned true, even if
+    ** dbterm was not updated. If the handle was of a new object and cret is
+    ** not DB_ERROR_NONE, the object is removed from the table. */
+    void (*db_finalize_dbterm)(int cret, DbUpdateHandle* handle);
 
 } DbTableMethod;
 
@@ -339,6 +342,7 @@ void* db_store_term(DbTableCommon *tb, DbTerm* old, Uint offset, Eterm obj);
 void* db_store_term_comp(DbTableCommon *tb, DbTerm* old, Uint offset, Eterm obj);
 Eterm db_copy_element_from_ets(DbTableCommon* tb, Process* p, DbTerm* obj,
 			       Uint pos, Eterm** hpp, Uint extra);
+int db_has_map(Eterm obj);
 int db_has_variable(Eterm obj);
 int db_is_variable(Eterm obj);
 void db_do_update_element(DbUpdateHandle* handle,
diff --git a/erts/emulator/beam/erl_drv_thread.c b/erts/emulator/beam/erl_drv_thread.c
index 147249f751..240faa823d 100644
--- a/erts/emulator/beam/erl_drv_thread.c
+++ b/erts/emulator/beam/erl_drv_thread.c
@@ -601,17 +601,16 @@ erl_drv_thread_create(char *name,
 #ifdef USE_THREADS
     int res;
     struct ErlDrvTid_ *dtid;
-    ethr_thr_opts ethr_opts;
+    ethr_thr_opts ethr_opts = ETHR_THR_OPTS_DEFAULT_INITER;
     ethr_thr_opts *use_opts;
-    ethr_thr_opts def_ethr_opts = ETHR_THR_OPTS_DEFAULT_INITER;
 
-    if (!opts)
+    if (!opts && !name)
 	use_opts = NULL;
     else {
-	sys_memcpy((void *) &ethr_opts,
-		   (void *) &def_ethr_opts,
-		   sizeof(ethr_thr_opts));
-	ethr_opts.suggested_stack_size = opts->suggested_stack_size;
+	if(opts)
+	    ethr_opts.suggested_stack_size = opts->suggested_stack_size;
+
+        ethr_opts.name = name;
 	use_opts = &ethr_opts;
     }
 
diff --git a/erts/emulator/beam/erl_gc.c b/erts/emulator/beam/erl_gc.c
index 0db42d4325..1785fc27be 100644
--- a/erts/emulator/beam/erl_gc.c
+++ b/erts/emulator/beam/erl_gc.c
@@ -20,6 +20,8 @@
 #  include "config.h"
 #endif
 
+#define ERL_WANT_GC_INTERNALS__
+
 #include "sys.h"
 #include "erl_vm.h"
 #include "global.h"
@@ -37,6 +39,7 @@
 #include "hipe_mode_switch.h"
 #endif
 #include "dtrace-wrapper.h"
+#include "erl_bif_unique.h"
 
 #define ERTS_INACT_WR_PB_LEAVE_MUCH_LIMIT 1
 #define ERTS_INACT_WR_PB_LEAVE_MUCH_PERCENTAGE 20
@@ -173,15 +176,15 @@ erts_init_gc(void)
     int i = 0, ix;
     Sint max_heap_size = 0;
 
-    ASSERT(offsetof(ProcBin,thing_word) == offsetof(struct erl_off_heap_header,thing_word));
-    ASSERT(offsetof(ProcBin,thing_word) == offsetof(ErlFunThing,thing_word));
-    ASSERT(offsetof(ProcBin,thing_word) == offsetof(ExternalThing,header));
-    ASSERT(offsetof(ProcBin,size) == offsetof(struct erl_off_heap_header,size));
-    ASSERT(offsetof(ProcBin,size) == offsetof(ErlSubBin,size));
-    ASSERT(offsetof(ProcBin,size) == offsetof(ErlHeapBin,size));
-    ASSERT(offsetof(ProcBin,next) == offsetof(struct erl_off_heap_header,next));
-    ASSERT(offsetof(ProcBin,next) == offsetof(ErlFunThing,next));
-    ASSERT(offsetof(ProcBin,next) == offsetof(ExternalThing,next));
+    ERTS_CT_ASSERT(offsetof(ProcBin,thing_word) == offsetof(struct erl_off_heap_header,thing_word));
+    ERTS_CT_ASSERT(offsetof(ProcBin,thing_word) == offsetof(ErlFunThing,thing_word));
+    ERTS_CT_ASSERT(offsetof(ProcBin,thing_word) == offsetof(ExternalThing,header));
+    ERTS_CT_ASSERT(offsetof(ProcBin,size) == offsetof(struct erl_off_heap_header,size));
+    ERTS_CT_ASSERT(offsetof(ProcBin,size) == offsetof(ErlSubBin,size));
+    ERTS_CT_ASSERT(offsetof(ProcBin,size) == offsetof(ErlHeapBin,size));
+    ERTS_CT_ASSERT(offsetof(ProcBin,next) == offsetof(struct erl_off_heap_header,next));
+    ERTS_CT_ASSERT(offsetof(ProcBin,next) == offsetof(ErlFunThing,next));
+    ERTS_CT_ASSERT(offsetof(ProcBin,next) == offsetof(ExternalThing,next));
 
     erts_test_long_gc_sleep = 0;
 
@@ -400,7 +403,7 @@ erts_garbage_collect(Process* p, int need, Eterm* objv, int nobj)
 {
     Uint reclaimed_now = 0;
     int done = 0;
-    Uint ms1, s1, us1;
+    ErtsMonotonicTime start_time = 0; /* Shut up faulty warning... */
     ErtsSchedulerData *esdp;
 #ifdef USE_VM_PROBES
     DTRACE_CHARBUF(pidbuf, DTRACE_TERM_BUF_SIZE);
@@ -417,10 +420,9 @@ erts_garbage_collect(Process* p, int need, Eterm* objv, int nobj)
         trace_gc(p, am_gc_start);
     }
 
-    erts_smp_atomic32_read_bor_nob(&p->state, ERTS_PSFLG_GC);
-    if (erts_system_monitor_long_gc != 0) {
-	get_now(&ms1, &s1, &us1);
-    }
+    (void) erts_smp_atomic32_read_bor_nob(&p->state, ERTS_PSFLG_GC);
+    if (erts_system_monitor_long_gc != 0)
+	start_time = erts_get_monotonic_time(esdp);
 
     ERTS_CHK_OFFHEAP(p);
 
@@ -468,16 +470,14 @@ erts_garbage_collect(Process* p, int need, Eterm* objv, int nobj)
     }
 
     if (erts_system_monitor_long_gc != 0) {
-	Uint ms2, s2, us2;
-	Sint t;
+	ErtsMonotonicTime end_time;
+	Uint gc_time;
 	if (erts_test_long_gc_sleep)
 	    while (0 != erts_milli_sleep(erts_test_long_gc_sleep));
-	get_now(&ms2, &s2, &us2);
-	t = ms2 - ms1;
-	t = t*1000000 + s2 - s1;
-	t = t*1000 + ((Sint) (us2 - us1))/1000;
-	if (t > 0 && (Uint)t > erts_system_monitor_long_gc) {
-	    monitor_long_gc(p, t);
+	end_time = erts_get_monotonic_time(esdp);
+	gc_time = (Uint) ERTS_MONOTONIC_TO_MSEC(end_time - start_time);
+	if (gc_time && gc_time > erts_system_monitor_long_gc) {
+	    monitor_long_gc(p, gc_time);
 	}
     }
     if (erts_system_monitor_large_heap != 0) {
@@ -1222,7 +1222,6 @@ major_collection(Process* p, int need, Eterm* objv, int nobj, Uint *recl)
     Uint n;
     Uint new_sz;
     Uint fragments = MBUF_SIZE(p) + combined_message_size(p);
-    ErlMessage *msgp;
 
     size_before = fragments + (HEAP_TOP(p) - HEAP_START(p));
 
@@ -1432,13 +1431,16 @@ major_collection(Process* p, int need, Eterm* objv, int nobj, Uint *recl)
 
     ErtsGcQuickSanityCheck(p);
 
-    /*
-     * Copy newly received message onto the end of the new heap.
-     */
-    for (msgp = p->msg.first; msgp; msgp = msgp->next) {
-	if (msgp->data.attached) {
-	    erts_move_msg_attached_data_to_heap(&p->htop, &p->off_heap, msgp);
-	    ErtsGcQuickSanityCheck(p);
+    {
+	ErlMessage *msgp;
+	/*
+	 * Copy newly received message onto the end of the new heap.
+	 */
+	for (msgp = p->msg.first; msgp; msgp = msgp->next) {
+	    if (msgp->data.attached) {
+		erts_move_msg_attached_data_to_heap(&p->htop, &p->off_heap, msgp);
+		ErtsGcQuickSanityCheck(p);
+	    }
 	}
     }
 
@@ -1501,13 +1503,12 @@ adjust_after_fullsweep(Process *p, Uint size_before, int need, Eterm *objv, int
 static Uint
 combined_message_size(Process* p)
 {
-    Uint sz = 0;
+    Uint sz;
     ErlMessage *msgp;
 
-    for (msgp = p->msg.first; msgp; msgp = msgp->next) {
-	if (msgp->data.attached) {
+    for (sz = 0, msgp = p->msg.first; msgp; msgp = msgp->next) {
+	if (msgp->data.attached)
 	    sz += erts_msg_attached_data_size(msgp);
-	}
     }
     return sz;
 }
@@ -2400,7 +2401,6 @@ sweep_off_heap(Process *p, int fullsweep)
 		}
 
 		pb->val = erts_bin_realloc(pb->val, new_size);
-		pb->val->orig_size = new_size;
 		pb->bytes = (byte *) pb->val->orig_bytes;
 	    }
 	}
@@ -2646,11 +2646,7 @@ reply_gc_info(void *vgcirp)
 	hpp = &hp;
     }
 
-    erts_queue_message(rp, &rp_locks, bp, msg, NIL
-#ifdef USE_VM_PROBES
-			   , NIL
-#endif
-		       );
+    erts_queue_message(rp, &rp_locks, bp, msg, NIL);
 
     if (gcirp->req_sched == esdp->no)
 	rp_locks &= ~ERTS_PROC_LOCK_MAIN;
@@ -2658,7 +2654,7 @@ reply_gc_info(void *vgcirp)
     if (rp_locks)
 	erts_smp_proc_unlock(rp, rp_locks);
 
-    erts_smp_proc_dec_refc(rp);
+    erts_proc_dec_refc(rp);
 
     if (erts_smp_atomic32_dec_read_nob(&gcirp->refc) == 0)
 	gcireq_free(vgcirp);
@@ -2682,7 +2678,7 @@ erts_gc_info_request(Process *c_p)
     erts_smp_atomic32_init_nob(&gcirp->refc,
 			       (erts_aint32_t) erts_no_schedulers);
 
-    erts_smp_proc_add_refc(c_p, (Sint32) erts_no_schedulers);
+    erts_proc_add_refc(c_p, (Sint) erts_no_schedulers);
 
 #ifdef ERTS_SMP
     if (erts_no_schedulers > 1)
diff --git a/erts/emulator/beam/erl_gc.h b/erts/emulator/beam/erl_gc.h
index 5203dda263..bd6dcc9078 100644
--- a/erts/emulator/beam/erl_gc.h
+++ b/erts/emulator/beam/erl_gc.h
@@ -20,10 +20,12 @@
 #ifndef __ERL_GC_H__
 #define __ERL_GC_H__
 
-#include "erl_map.h"
+#if defined(ERL_WANT_GC_INTERNALS__) || defined(ERTS_DO_INCL_GLB_INLINE_FUNC_DEF)
 
 /* GC declarations shared by beam/erl_gc.c and hipe/hipe_gc.c */
 
+#include "erl_map.h"
+
 #if defined(DEBUG) && !ERTS_GLB_INLINE_INCL_FUNC_DEF
 #  define HARDDEBUG 1
 #endif
@@ -53,7 +55,10 @@ do {                                                                    \
     nelts = header_arity(HDR);                                          \
     switch ((HDR) & _HEADER_SUBTAG_MASK) {                              \
     case SUB_BINARY_SUBTAG: nelts++; break;                             \
-    case MAP_SUBTAG: nelts+=map_get_size(PTR) + 1; break;               \
+    case MAP_SUBTAG:                                                    \
+        if (is_flatmap_header(HDR)) nelts+=flatmap_get_size(PTR) + 1;   \
+        else nelts += hashmap_bitcount(MAP_HEADER_VAL(HDR));            \
+    break;                                                              \
     case FUN_SUBTAG: nelts+=((ErlFunThing*)(PTR))->num_free+1; break;   \
     }                                                                   \
     gval    = make_boxed(HTOP);                                         \
@@ -61,14 +66,11 @@ do {                                                                    \
     *HTOP++ = HDR;                                                      \
     *PTR++  = gval;                                                     \
     while (nelts--) *HTOP++ = *PTR++;                                   \
-                                                                        \
 } while(0)
 
 #define in_area(ptr,start,nbytes) \
  ((UWord)((char*)(ptr) - (char*)(start)) < (nbytes))
 
-extern Uint erts_test_long_gc_sleep;
-
 #if defined(DEBUG) || defined(ERTS_OFFHEAP_DEBUG)
 int within(Eterm *ptr, Process *p);
 #endif
@@ -97,4 +99,33 @@ ERTS_GLB_INLINE Eterm follow_moved(Eterm term)
 }
 #endif
 
+#endif /* ERL_GC_C__ || HIPE_GC_C__ */
+
+/*
+ * Global exported
+ */
+
+extern Uint erts_test_long_gc_sleep;
+
+typedef struct {
+  Uint64 reclaimed;
+  Uint64 garbage_cols;
+} ErtsGCInfo;
+
+void erts_gc_info(ErtsGCInfo *gcip);
+void erts_init_gc(void);
+int erts_garbage_collect(struct process*, int, Eterm*, int);
+void erts_garbage_collect_hibernate(struct process* p);
+Eterm erts_gc_after_bif_call(struct process* p, Eterm result, Eterm* regs, Uint arity);
+void erts_garbage_collect_literals(struct process* p, Eterm* literals,
+				   Uint lit_size,
+				   struct erl_off_heap_header* oh);
+Uint erts_next_heap_size(Uint, Uint);
+Eterm erts_heap_sizes(struct process* p);
+
+void erts_offset_off_heap(struct erl_off_heap*, Sint, Eterm*, Eterm*);
+void erts_offset_heap_ptr(Eterm*, Uint, Sint, Eterm*, Eterm*);
+void erts_offset_heap(Eterm*, Uint, Sint, Eterm*, Eterm*);
+void erts_free_heap_frags(struct process* p);
+
 #endif /* __ERL_GC_H__ */
diff --git a/erts/emulator/beam/erl_hl_timer.c b/erts/emulator/beam/erl_hl_timer.c
new file mode 100644
index 0000000000..51cd843935
--- /dev/null
+++ b/erts/emulator/beam/erl_hl_timer.c
@@ -0,0 +1,2894 @@
+/*
+ * %CopyrightBegin%
+ * 
+ * Copyright Ericsson AB 2015. All Rights Reserved.
+ * 
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ * 
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * %CopyrightEnd%
+ */
+
+/*
+ * Description: High level timers implementing BIF timers
+ *              as well as process and port timers.
+ *
+ * Author: 	Rickard Green
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#include "sys.h"
+#include "global.h"
+#include "bif.h"
+#include "erl_bif_unique.h"
+#define ERTS_WANT_TIMER_WHEEL_API
+#include "erl_time.h"
+#include "erl_hl_timer.h"
+
+#define ERTS_TMR_CHECK_CANCEL_ON_CREATE 0
+
+#if 0
+#  define ERTS_HLT_HARD_DEBUG
+#endif
+#if 0
+#  define ERTS_HLT_DEBUG
+#endif
+
+#if defined(ERTS_HLT_HARD_DEBUG) || defined(DEBUG)
+#  if defined(ERTS_HLT_HARD_DEBUG)
+#    undef ERTS_RBT_HARD_DEBUG
+#    define ERTS_RBT_HARD_DEBUG 1
+#  endif
+#  ifndef ERTS_HLT_DEBUG
+#    define ERTS_HLT_DEBUG 1
+#  endif
+#endif
+
+#undef ERTS_HLT_ASSERT
+#if defined(ERTS_HLT_DEBUG)
+#  define ERTS_HLT_ASSERT(E) ERTS_ASSERT(E)
+#  undef ERTS_RBT_DEBUG
+#  define ERTS_RBT_DEBUG
+#else
+#  define ERTS_HLT_ASSERT(E) ((void) 1)
+#endif
+
+#if defined(ERTS_HLT_HARD_DEBUG) && defined(__GNUC__)
+#warning "* * * * * * * * * * * * * * * * * *"
+#warning "* ERTS_HLT_HARD_DEBUG IS ENABLED! *"
+#warning "* * * * * * * * * * * * * * * * * *"
+#endif
+
+#ifdef ERTS_HLT_HARD_DEBUG
+#  define ERTS_HLT_HDBG_CHK_SRV(SRV) hdbg_chk_srv((SRV))
+static void hdbg_chk_srv(ErtsHLTimerService *srv);
+#else
+#  define ERTS_HLT_HDBG_CHK_SRV(SRV) ((void) 1)
+#endif
+
+#if ERTS_REF_NUMBERS != 3
+#error "ERTS_REF_NUMBERS changed. Update me..."
+#endif
+
+#define ERTS_BIF_TIMER_SHORT_TIME 5000
+
+#ifdef ERTS_SMP
+#  define ERTS_HLT_SMP_MEMBAR_LoadLoad_LoadStore \
+    ETHR_MEMBAR(ETHR_LoadLoad|ETHR_LoadStore)
+#else
+#  define ERTS_HLT_SMP_MEMBAR_LoadLoad_LoadStore
+#endif
+
+/* Bit 0 to 9 contains scheduler id (see mask below) */
+#define ERTS_TMR_ROFLG_HLT		(((Uint32) 1) << 10)
+#define ERTS_TMR_ROFLG_BIF_TMR		(((Uint32) 1) << 11)
+#define ERTS_TMR_ROFLG_ABIF_TMR		(((Uint32) 1) << 12)
+#define ERTS_TMR_ROFLG_PRE_ALC		(((Uint32) 1) << 13)
+#define ERTS_TMR_ROFLG_REG_NAME		(((Uint32) 1) << 14)
+#define ERTS_TMR_ROFLG_PROC		(((Uint32) 1) << 15)
+#define ERTS_TMR_ROFLG_PORT		(((Uint32) 1) << 16)
+
+#define ERTS_TMR_ROFLG_SID_MASK	\
+    (ERTS_TMR_ROFLG_HLT - (Uint32) 1)
+
+#define ERTS_TMR_STATE_ACTIVE		((erts_aint32_t) 0)
+#define ERTS_TMR_STATE_CANCELED		((erts_aint32_t) 1)
+#define ERTS_TMR_STATE_TIMED_OUT	((erts_aint32_t) 2)
+
+typedef struct ErtsHLTimer_ ErtsHLTimer;
+
+#define ERTS_HLT_PFLG_RED		(((UWord) 1) << 0)
+#define ERTS_HLT_PFLG_SAME_TIME		(((UWord) 1) << 1)
+
+#define ERTS_HLT_PFLGS_MASK \
+    (ERTS_HLT_PFLG_RED|ERTS_HLT_PFLG_SAME_TIME)
+
+#define ERTS_HLT_PFIELD_NOT_IN_TABLE	(~((UWord) 0))
+
+typedef struct {
+    UWord parent; /* parent pointer and flags... */
+    union {
+	struct {
+	    ErtsHLTimer *right;
+	    ErtsHLTimer *left;
+	} t;
+	struct {
+	    ErtsHLTimer *prev;
+	    ErtsHLTimer *next;
+	} l;
+    } u;
+    ErtsHLTimer *same_time;
+} ErtsHLTimerTimeTree;
+
+typedef struct {
+    UWord parent; /* parent pointer and flags... */
+    ErtsHLTimer *right;
+    ErtsHLTimer *left;
+} ErtsHLTimerTree;
+
+typedef struct {
+    Uint32 roflgs;
+    erts_smp_atomic32_t refc;
+    union {
+	erts_atomic_t next;
+    } u;
+} ErtsTmrHead;
+
+struct ErtsHLTimer_ {
+    ErtsTmrHead head; /* NEED to be first! */
+    union {
+	ErtsThrPrgrLaterOp cleanup;
+	ErtsHLTimerTimeTree tree;
+    } time;
+    ErtsMonotonicTime timeout;
+    union {
+	Process *proc;
+	Port *port;
+	Eterm name;
+    } receiver;
+
+#ifdef ERTS_HLT_HARD_DEBUG
+    int pending_timeout;
+#endif
+
+    erts_smp_atomic32_t state;
+
+    /* BIF timer only fields follow... */
+    struct {
+	Uint32 refn[ERTS_REF_NUMBERS];
+	ErtsHLTimerTree proc_tree;
+	ErtsHLTimerTree tree;
+	Eterm message;
+	ErlHeapFragment *bp;
+    } btm;
+    struct {
+	Eterm accessor;
+	ErtsHLTimerTree tree;
+    } abtm;
+};
+
+#define ERTS_HL_PTIMER_SIZE offsetof(ErtsHLTimer, btm)
+#define ERTS_BIF_TIMER_SIZE offsetof(ErtsHLTimer, abtm)
+#define ERTS_ABIF_TIMER_SIZE sizeof(ErtsHLTimer)
+
+typedef struct {
+    ErtsTmrHead head; /* NEED to be first! */
+    void *p;
+    ErtsTWheelTimer tw_tmr;
+} ErtsTWTimer;
+
+typedef union {
+    ErtsTmrHead head;
+    ErtsHLTimer hlt;
+    ErtsTWTimer twt;
+} ErtsTimer;
+
+#ifdef SMALL_MEMORY
+#define BIF_TIMER_PREALC_SZ	10
+#define PTIMER_PREALC_SZ	10
+#else
+#define BIF_TIMER_PREALC_SZ	100
+#define PTIMER_PREALC_SZ	100
+#endif
+
+ERTS_SCHED_PREF_PALLOC_IMPL(bif_timer_pre,
+			    ErtsHLTimer,
+			    BIF_TIMER_PREALC_SZ)
+
+ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(tw_timer,
+				 ErtsTWTimer,
+				 PTIMER_PREALC_SZ,
+				 ERTS_ALC_T_LL_PTIMER)
+
+#ifdef ERTS_HLT_DEBUG
+#define ERTS_TMR_TIMEOUT_YIELD_LIMIT 5
+#else
+#define ERTS_TMR_TIMEOUT_YIELD_LIMIT 100
+#endif
+#define ERTS_TMR_CANCELED_TIMER_LIMIT 100
+#define ERTS_TMR_CANCELED_TIMER_SMALL_LIMIT 5
+
+#define ERTS_TMR_TIMEOUT_YIELD_STATE_T same_time_list_yield_state_t
+#define ERTS_TMR_YIELDING_TIMEOUT_STATE_INITER {NULL, {0}}
+typedef struct {
+    int dummy;
+} ERTS_TMR_TIMEOUT_YIELD_STATE_T;
+
+typedef struct {
+    ErtsTmrHead marker;
+    erts_atomic_t last;
+} ErtsHLTCncldTmrQTail;
+
+#ifdef ERTS_SMP
+
+typedef struct {
+    /*
+     * This structure needs to be cache line aligned for best
+     * performance.
+     */
+    union {
+	/*
+	 * Modified by threads returning canceled
+	 * timers to this timer service.
+	 */
+	ErtsHLTCncldTmrQTail data;
+	char align__[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(
+		sizeof(ErtsHLTCncldTmrQTail))];
+    } tail;
+    /*
+     * Everything below this point is *only* accessed by the
+     * thread managing this timer service.
+     */
+    struct {
+	ErtsTimer *first;
+	ErtsTimer *unref_end;
+	struct {
+	    ErtsThrPrgrVal thr_progress;
+	    int thr_progress_reached;
+	    ErtsTimer *unref_end;
+	} next;
+	int used_marker;
+    } head;
+} ErtsHLTCncldTmrQ;
+
+#endif /* ERTS_SMP */
+
+typedef struct {
+    ErtsHLTimer *root;
+    ERTS_TMR_TIMEOUT_YIELD_STATE_T state;
+} ErtsYieldingTimeoutState;
+
+struct ErtsHLTimerService_ {
+#ifdef ERTS_SMP
+    ErtsHLTCncldTmrQ canceled_queue;
+#endif
+    ErtsHLTimer *time_tree;
+    ErtsHLTimer *btm_tree;
+    ErtsHLTimer *next_timeout;
+    ErtsYieldingTimeoutState yield;
+    ErtsTWheelTimer service_timer;
+};
+
+static ERTS_INLINE int
+refn_is_lt(Uint32 *x, Uint32 *y)
+{
+    /* !0 if x < y */
+    if (x[2] < y[2])
+	return 1;
+    if (x[2] != y[2])
+	return 0;
+    if (x[1] < y[1])
+	return 1;
+    if (x[1] != y[1])
+	return 0;
+    return x[0] < y[0];
+}
+
+#define ERTS_RBT_PREFIX time
+#define ERTS_RBT_T ErtsHLTimer
+#define ERTS_RBT_KEY_T ErtsMonotonicTime
+#define ERTS_RBT_FLAGS_T UWord
+#define ERTS_RBT_INIT_EMPTY_TNODE(T)					\
+    do {								\
+	(T)->time.tree.parent = (UWord) NULL;				\
+	(T)->time.tree.u.t.right = NULL;				\
+	(T)->time.tree.u.t.left = NULL;					\
+    } while (0)
+#define ERTS_RBT_IS_RED(T)						\
+    ((int) ((T)->time.tree.parent & ERTS_HLT_PFLG_RED))
+#define ERTS_RBT_SET_RED(T)						\
+    ((T)->time.tree.parent |= ERTS_HLT_PFLG_RED)
+#define ERTS_RBT_IS_BLACK(T)						\
+    (!ERTS_RBT_IS_RED((T)))
+#define ERTS_RBT_SET_BLACK(T)						\
+    ((T)->time.tree.parent &= ~ERTS_HLT_PFLG_RED)
+#define ERTS_RBT_GET_FLAGS(T)						\
+    ((T)->time.tree.parent & ERTS_HLT_PFLGS_MASK)
+#define ERTS_RBT_SET_FLAGS(T, F)					\
+    do {								\
+	ERTS_HLT_ASSERT((((UWord) (F)) & ~ERTS_HLT_PFLGS_MASK) == 0);	\
+	(T)->time.tree.parent &= ~ERTS_HLT_PFLGS_MASK;			\
+	(T)->time.tree.parent |= (F);					\
+    } while (0)
+#define ERTS_RBT_GET_PARENT(T)						\
+    ((ErtsHLTimer *) ((T)->time.tree.parent & ~ERTS_HLT_PFLGS_MASK))
+#define ERTS_RBT_SET_PARENT(T, P)					\
+    do {								\
+	ERTS_HLT_ASSERT((((UWord) (P)) & ERTS_HLT_PFLGS_MASK) == 0);	\
+	(T)->time.tree.parent &= ERTS_HLT_PFLGS_MASK;			\
+	(T)->time.tree.parent |= (UWord) (P);				\
+    } while (0)
+#define ERTS_RBT_GET_RIGHT(T) ((T)->time.tree.u.t.right)
+#define ERTS_RBT_SET_RIGHT(T, R) ((T)->time.tree.u.t.right = (R))
+#define ERTS_RBT_GET_LEFT(T) ((T)->time.tree.u.t.left)
+#define ERTS_RBT_SET_LEFT(T, L) ((T)->time.tree.u.t.left = (L))
+#define ERTS_RBT_GET_KEY(T) ((T)->timeout)
+#define ERTS_RBT_IS_LT(KX, KY) ((KX) < (KY))
+#define ERTS_RBT_IS_EQ(KX, KY) ((KX) == (KY))
+#define ERTS_RBT_WANT_DELETE
+#define ERTS_RBT_WANT_SMALLEST
+#define ERTS_RBT_WANT_LOOKUP_INSERT
+#define ERTS_RBT_WANT_REPLACE
+#ifdef ERTS_HLT_HARD_DEBUG
+#  define ERTS_RBT_WANT_FOREACH
+#  define ERTS_RBT_WANT_LOOKUP
+#endif
+#define ERTS_RBT_UNDEF
+
+#include "erl_rbtree.h"
+
+/* Use circular list for timers at same time */
+
+static ERTS_INLINE void
+same_time_list_insert(ErtsHLTimer **root, ErtsHLTimer *tmr)
+{
+    ErtsHLTimer *first = *root;
+    if (!first) {
+	ERTS_HLT_ASSERT((((UWord) root) & ERTS_HLT_PFLG_SAME_TIME) == 0);
+	tmr->time.tree.parent = ((UWord) root) | ERTS_HLT_PFLG_SAME_TIME;
+	tmr->time.tree.u.l.next = tmr;
+	tmr->time.tree.u.l.prev = tmr;
+	*root = tmr;
+    }
+    else {
+	tmr->time.tree.parent = ERTS_HLT_PFLG_SAME_TIME;
+	tmr->time.tree.u.l.next = first;
+	tmr->time.tree.u.l.prev = first->time.tree.u.l.prev;
+	first->time.tree.u.l.prev = tmr;
+	tmr->time.tree.u.l.prev->time.tree.u.l.next = tmr;
+    }
+}
+
+static ERTS_INLINE void
+same_time_list_delete(ErtsHLTimer *tmr)
+{
+    ErtsHLTimer **root, *next;
+    
+    root = (ErtsHLTimer **) (tmr->time.tree.parent & ~ERTS_HLT_PFLG_SAME_TIME);
+    next = tmr->time.tree.u.l.next;
+
+    ERTS_HLT_ASSERT((tmr->time.tree.parent
+		     == (((UWord) root) | ERTS_HLT_PFLG_SAME_TIME))
+		    || (tmr->time.tree.parent
+			== ERTS_HLT_PFLG_SAME_TIME));
+
+    if (next == tmr) {
+	ERTS_HLT_ASSERT(root && *root == tmr);
+	ERTS_HLT_ASSERT(tmr->time.tree.u.l.prev == tmr);
+	*root = NULL;
+    }
+    else {
+	if (root) {
+	    ERTS_HLT_ASSERT(*root == tmr);
+	    *root = next;
+	    next->time.tree.parent = ((UWord) root) | ERTS_HLT_PFLG_SAME_TIME;
+	}
+	tmr->time.tree.u.l.next->time.tree.u.l.prev = tmr->time.tree.u.l.prev;
+	tmr->time.tree.u.l.prev->time.tree.u.l.next = next;
+    }
+}
+
+static ERTS_INLINE void
+same_time_list_new_root(ErtsHLTimer **root)
+{
+    ErtsHLTimer *tmr = *root;
+    if (tmr) {
+	ERTS_HLT_ASSERT(root);
+	tmr->time.tree.parent = ((UWord) root) | ERTS_HLT_PFLG_SAME_TIME;
+    }
+}
+
+static ERTS_INLINE int
+same_time_list_foreach_destroy_yielding(ErtsHLTimer **root,
+					void (*op)(ErtsHLTimer *, void *),
+					void *arg,
+					ERTS_TMR_TIMEOUT_YIELD_STATE_T *ys,
+					Sint ylimit)
+{
+    Sint ycnt = ylimit;
+    ErtsHLTimer *end, *tmr = *root;
+    if (!tmr)
+	return 0;
+
+    ERTS_HLT_ASSERT(tmr->time.tree.parent
+		    == (((UWord) root) | ERTS_HLT_PFLG_SAME_TIME));
+
+    end = tmr->time.tree.u.l.prev;
+    end->time.tree.u.l.next = NULL;
+
+    while (1) {
+	ErtsHLTimer *op_tmr = tmr;
+
+	ERTS_HLT_ASSERT((tmr->time.tree.parent
+			 == (((UWord) root) | ERTS_HLT_PFLG_SAME_TIME))
+			|| (tmr->time.tree.parent
+			    == ERTS_HLT_PFLG_SAME_TIME));
+
+	tmr = tmr->time.tree.u.l.next;
+	(*op)(op_tmr, arg);
+	if (!tmr) {
+	    *root = NULL;
+	    return 0;
+	}
+	if (--ycnt <= 0) {
+	    /* Make new circle of timers left to process... */
+	    *root = tmr;
+	    end->time.tree.u.l.next = tmr;
+	    tmr->time.tree.u.l.prev = end;
+	    tmr->time.tree.parent = ((UWord) root) | ERTS_HLT_PFLG_SAME_TIME;
+	    return 1;
+	}
+    }    
+}
+
+#ifdef ERTS_HLT_HARD_DEBUG
+
+static ERTS_INLINE void
+same_time_list_foreach(ErtsHLTimer *root,
+		       void (*op)(ErtsHLTimer *, void *),
+		       void *arg)
+{
+    if (root) {
+	ErtsHLTimer *tmr = root;
+	do {
+	    (*op)(tmr, arg);
+	    tmr = tmr->time.tree.u.l.next;
+	} while (root != tmr);
+    }
+}
+
+static ERTS_INLINE ErtsHLTimer *
+same_time_list_lookup(ErtsHLTimer *root, ErtsHLTimer *x)
+{
+    if (root) {
+	ErtsHLTimer *tmr = root;
+	do {
+	    if (tmr == x)
+		return tmr;
+	    tmr = tmr->time.tree.u.l.next;
+	} while (root != tmr);
+    }
+    return NULL;
+}
+
+#endif /* ERTS_HLT_HARD_DEBUG */
+
+#define ERTS_RBT_PREFIX btm
+#define ERTS_RBT_T ErtsHLTimer
+#define ERTS_RBT_KEY_T Uint32 *
+#define ERTS_RBT_FLAGS_T UWord
+#define ERTS_RBT_INIT_EMPTY_TNODE(T)					\
+    do {								\
+	(T)->btm.tree.parent = (UWord) NULL;				\
+	(T)->btm.tree.right = NULL;					\
+	(T)->btm.tree.left = NULL;					\
+    } while (0)
+#define ERTS_RBT_IS_RED(T)						\
+    ((int) ((T)->btm.tree.parent & ERTS_HLT_PFLG_RED))
+#define ERTS_RBT_SET_RED(T)						\
+    ((T)->btm.tree.parent |= ERTS_HLT_PFLG_RED)
+#define ERTS_RBT_IS_BLACK(T)						\
+    (!ERTS_RBT_IS_RED((T)))
+#define ERTS_RBT_SET_BLACK(T)						\
+    ((T)->btm.tree.parent &= ~ERTS_HLT_PFLG_RED)
+#define ERTS_RBT_GET_FLAGS(T)						\
+    ((T)->btm.tree.parent & ERTS_HLT_PFLGS_MASK)
+#define ERTS_RBT_SET_FLAGS(T, F)					\
+    do {								\
+	ERTS_HLT_ASSERT((((UWord) (F)) & ~ERTS_HLT_PFLGS_MASK) == 0);	\
+	(T)->btm.tree.parent &= ~ERTS_HLT_PFLGS_MASK;			\
+	(T)->btm.tree.parent |= (F);					\
+    } while (0)
+#define ERTS_RBT_GET_PARENT(T)						\
+    ((ErtsHLTimer *) ((T)->btm.tree.parent & ~ERTS_HLT_PFLGS_MASK))
+#define ERTS_RBT_SET_PARENT(T, P)					\
+    do {								\
+	ERTS_HLT_ASSERT((((UWord) (P)) & ERTS_HLT_PFLGS_MASK) == 0);	\
+	(T)->btm.tree.parent &= ERTS_HLT_PFLGS_MASK;			\
+	(T)->btm.tree.parent |= (UWord) (P);				\
+    } while (0)
+#define ERTS_RBT_GET_RIGHT(T) ((T)->btm.tree.right)
+#define ERTS_RBT_SET_RIGHT(T, R) ((T)->btm.tree.right = (R))
+#define ERTS_RBT_GET_LEFT(T) ((T)->btm.tree.left)
+#define ERTS_RBT_SET_LEFT(T, L) ((T)->btm.tree.left = (L))
+#define ERTS_RBT_GET_KEY(T) ((T)->btm.refn)
+#define ERTS_RBT_IS_LT(KX, KY) refn_is_lt((KX), (KY))
+#define ERTS_RBT_IS_EQ(KX, KY) \
+    (((KX)[0] == (KY)[0]) & ((KX)[1] == (KY)[1]) & ((KX)[2] == (KY)[2]))
+#define ERTS_RBT_WANT_DELETE
+#define ERTS_RBT_WANT_INSERT
+#define ERTS_RBT_WANT_LOOKUP
+#define ERTS_RBT_WANT_FOREACH
+#define ERTS_RBT_UNDEF
+
+#include "erl_rbtree.h"
+
+#define ERTS_RBT_PREFIX proc_btm
+#define ERTS_RBT_T ErtsHLTimer
+#define ERTS_RBT_KEY_T Uint32 *
+#define ERTS_RBT_FLAGS_T UWord
+#define ERTS_RBT_INIT_EMPTY_TNODE(T)					\
+    do {								\
+	(T)->btm.proc_tree.parent = (UWord) NULL;			\
+	(T)->btm.proc_tree.right = NULL;				\
+	(T)->btm.proc_tree.left = NULL;					\
+    } while (0)
+#define ERTS_RBT_IS_RED(T)						\
+    ((int) ((T)->btm.proc_tree.parent & ERTS_HLT_PFLG_RED))
+#define ERTS_RBT_SET_RED(T)						\
+    ((T)->btm.proc_tree.parent |= ERTS_HLT_PFLG_RED)
+#define ERTS_RBT_IS_BLACK(T)						\
+    (!ERTS_RBT_IS_RED((T)))
+#define ERTS_RBT_SET_BLACK(T)						\
+    ((T)->btm.proc_tree.parent &= ~ERTS_HLT_PFLG_RED)
+#define ERTS_RBT_GET_FLAGS(T)						\
+    ((T)->btm.proc_tree.parent & ERTS_HLT_PFLGS_MASK)
+#define ERTS_RBT_SET_FLAGS(T, F)					\
+    do {								\
+	ERTS_HLT_ASSERT((((UWord) (F)) & ~ERTS_HLT_PFLGS_MASK) == 0);	\
+	(T)->btm.proc_tree.parent &= ~ERTS_HLT_PFLGS_MASK;		\
+	(T)->btm.proc_tree.parent |= (F);				\
+    } while (0)
+#define ERTS_RBT_GET_PARENT(T)						\
+    ((ErtsHLTimer *) ((T)->btm.proc_tree.parent & ~ERTS_HLT_PFLGS_MASK))
+#define ERTS_RBT_SET_PARENT(T, P)					\
+    do {								\
+	ERTS_HLT_ASSERT((((UWord) (P)) & ERTS_HLT_PFLGS_MASK) == 0);	\
+	(T)->btm.proc_tree.parent &= ERTS_HLT_PFLGS_MASK;		\
+	(T)->btm.proc_tree.parent |= (UWord) (P);			\
+    } while (0)
+#define ERTS_RBT_GET_RIGHT(T) ((T)->btm.proc_tree.right)
+#define ERTS_RBT_SET_RIGHT(T, R) ((T)->btm.proc_tree.right = (R))
+#define ERTS_RBT_GET_LEFT(T) ((T)->btm.proc_tree.left)
+#define ERTS_RBT_SET_LEFT(T, L) ((T)->btm.proc_tree.left = (L))
+#define ERTS_RBT_GET_KEY(T) ((T)->btm.refn)
+#define ERTS_RBT_IS_LT(KX, KY) refn_is_lt((KX), (KY))
+#define ERTS_RBT_IS_EQ(KX, KY) \
+    (((KX)[0] == (KY)[0]) & ((KX)[1] == (KY)[1]) & ((KX)[2] == (KY)[2]))
+#define ERTS_RBT_WANT_DELETE
+#define ERTS_RBT_WANT_INSERT
+#define ERTS_RBT_WANT_LOOKUP
+#define ERTS_RBT_WANT_FOREACH_DESTROY_YIELDING
+#define ERTS_RBT_UNDEF
+
+#include "erl_rbtree.h"
+
+#define ERTS_RBT_PREFIX abtm
+#define ERTS_RBT_T ErtsHLTimer
+#define ERTS_RBT_KEY_T Uint32 *
+#define ERTS_RBT_FLAGS_T UWord
+#define ERTS_RBT_INIT_EMPTY_TNODE(T)					\
+    do {								\
+	(T)->abtm.tree.parent = (UWord) NULL;				\
+	(T)->abtm.tree.right = NULL;					\
+	(T)->abtm.tree.left = NULL;					\
+    } while (0)
+#define ERTS_RBT_IS_RED(T)						\
+    ((int) ((T)->abtm.tree.parent & ERTS_HLT_PFLG_RED))
+#define ERTS_RBT_SET_RED(T)						\
+    ((T)->abtm.tree.parent |= ERTS_HLT_PFLG_RED)
+#define ERTS_RBT_IS_BLACK(T)						\
+    (!ERTS_RBT_IS_RED((T)))
+#define ERTS_RBT_SET_BLACK(T)						\
+    ((T)->abtm.tree.parent &= ~ERTS_HLT_PFLG_RED)
+#define ERTS_RBT_GET_FLAGS(T)						\
+    ((T)->abtm.tree.parent & ERTS_HLT_PFLGS_MASK)
+#define ERTS_RBT_SET_FLAGS(T, F)					\
+    do {								\
+	ERTS_HLT_ASSERT((((UWord) (F)) & ~ERTS_HLT_PFLGS_MASK) == 0);	\
+	(T)->abtm.tree.parent &= ~ERTS_HLT_PFLGS_MASK;			\
+	(T)->abtm.tree.parent |= (F);					\
+    } while (0)
+#define ERTS_RBT_GET_PARENT(T)						\
+    ((ErtsHLTimer *) ((T)->abtm.tree.parent & ~ERTS_HLT_PFLGS_MASK))
+#define ERTS_RBT_SET_PARENT(T, P)					\
+    do {								\
+	ERTS_HLT_ASSERT((((UWord) (P)) & ERTS_HLT_PFLGS_MASK) == 0);	\
+	(T)->abtm.tree.parent &= ERTS_HLT_PFLGS_MASK;			\
+	(T)->abtm.tree.parent |= (UWord) (P);				\
+    } while (0)
+#define ERTS_RBT_GET_RIGHT(T) ((T)->abtm.tree.right)
+#define ERTS_RBT_SET_RIGHT(T, R) ((T)->abtm.tree.right = (R))
+#define ERTS_RBT_GET_LEFT(T) ((T)->abtm.tree.left)
+#define ERTS_RBT_SET_LEFT(T, L) ((T)->abtm.tree.left = (L))
+#define ERTS_RBT_GET_KEY(T) ((T)->btm.refn)
+#define ERTS_RBT_IS_LT(KX, KY) refn_is_lt((KX), (KY))
+#define ERTS_RBT_IS_EQ(KX, KY) \
+    (((KX)[0] == (KY)[0]) & ((KX)[1] == (KY)[1]) & ((KX)[2] == (KY)[2]))
+#define ERTS_RBT_WANT_DELETE
+#define ERTS_RBT_WANT_INSERT
+#define ERTS_RBT_WANT_LOOKUP
+#define ERTS_RBT_WANT_FOREACH_DESTROY_YIELDING
+#define ERTS_RBT_UNDEF
+
+#include "erl_rbtree.h"
+
+#ifdef ERTS_SMP
+static void init_canceled_queue(ErtsHLTCncldTmrQ *cq);
+#endif
+
+void
+erts_hl_timer_init(void)
+{
+    init_tw_timer_alloc();
+    init_bif_timer_pre_alloc();
+}
+
+ErtsHLTimerService *
+erts_create_timer_service(void)
+{
+    ErtsYieldingTimeoutState init_yield = ERTS_TMR_YIELDING_TIMEOUT_STATE_INITER;
+    ErtsHLTimerService *srv;
+
+    srv = erts_alloc_permanent_cache_aligned(ERTS_ALC_T_TIMER_SERVICE,
+					     sizeof(ErtsHLTimerService));
+    srv->time_tree = NULL;
+    srv->btm_tree = NULL;
+    srv->next_timeout = NULL;
+    srv->yield = init_yield;
+    erts_twheel_init_timer(&srv->service_timer);
+
+#ifdef ERTS_SMP
+    init_canceled_queue(&srv->canceled_queue);
+#endif
+
+    return srv;
+}
+
+size_t
+erts_timer_type_size(ErtsAlcType_t type)
+{
+    switch (type) {
+    case ERTS_ALC_T_LL_PTIMER: return sizeof(ErtsTWTimer);
+    case ERTS_ALC_T_HL_PTIMER: return ERTS_HL_PTIMER_SIZE;
+    case ERTS_ALC_T_BIF_TIMER: return ERTS_BIF_TIMER_SIZE;
+    case ERTS_ALC_T_ABIF_TIMER: return ERTS_ABIF_TIMER_SIZE;
+    default: ERTS_INTERNAL_ERROR("Unknown type");
+    }
+    return 0;
+}
+
+static ERTS_INLINE ErtsMonotonicTime
+get_timeout_pos(ErtsMonotonicTime now, ErtsMonotonicTime msec)
+{
+    ErtsMonotonicTime timeout_pos;
+    if (msec <= 0)
+	return ERTS_MONOTONIC_TO_CLKTCKS(now);
+    timeout_pos = ERTS_MONOTONIC_TO_CLKTCKS(now-1);
+    timeout_pos += ERTS_MSEC_TO_CLKTCKS(msec) + 1;
+    return timeout_pos;
+}
+
+static ERTS_INLINE Sint64
+get_time_left(ErtsSchedulerData *esdp, ErtsMonotonicTime timeout_pos)
+{
+    ErtsMonotonicTime now = erts_get_monotonic_time(esdp);
+
+    now = ERTS_MONOTONIC_TO_CLKTCKS(now-1)+1;
+    if (timeout_pos <= now)
+	return (Sint64) 0;
+    return (Sint64) ERTS_CLKTCKS_TO_MSEC(timeout_pos - now);
+}
+
+static ERTS_INLINE int
+proc_timeout_common(Process *proc, void *tmr)
+{
+    if (tmr == (void *) erts_smp_atomic_cmpxchg_mb(&proc->common.timer,
+						   ERTS_PTMR_TIMEDOUT,
+						   (erts_aint_t) tmr)) {
+	erts_aint32_t state = erts_smp_atomic32_read_acqb(&proc->state);
+	if (!(state & (ERTS_PSFLG_ACTIVE|ERTS_PSFLG_EXITING)))
+	    erts_schedule_process(proc, state, 0);
+	return 1;
+    }
+    return 0;
+}
+
+static ERTS_INLINE int
+port_timeout_common(Port *port, void *tmr)
+{
+    if (tmr == (void *) erts_smp_atomic_cmpxchg_mb(&port->common.timer,
+						   ERTS_PTMR_TIMEDOUT,
+						   (erts_aint_t) tmr)) {
+	erts_port_task_schedule(port->common.id,
+				&port->timeout_task,
+				ERTS_PORT_TASK_TIMEOUT);
+	return 1;
+    }
+    return 0;
+}
+
+/*
+ * Basic timer wheel timer stuff
+ */
+
+static void
+scheduled_tw_timer_destroy(void *vtmr)
+{
+    tw_timer_free((ErtsTWTimer *) vtmr);
+}
+
+static void
+schedule_tw_timer_destroy(ErtsTWTimer *tmr)
+{
+    /*
+     * Reference to process/port can be
+     * dropped at once...
+     */
+    if (tmr->head.roflgs & ERTS_TMR_ROFLG_PROC)
+	erts_proc_dec_refc((Process *) tmr->p);
+    else
+	erts_port_dec_refc((Port *) tmr->p);
+
+    erts_schedule_thr_prgr_later_cleanup_op(
+	scheduled_tw_timer_destroy,
+	(void *) tmr,
+	&tmr->tw_tmr.u.cleanup,
+	sizeof(ErtsTWTimer));
+}
+
+static ERTS_INLINE void
+tw_timer_dec_refc(ErtsTWTimer *tmr)
+{
+    if (erts_smp_atomic32_dec_read_relb(&tmr->head.refc) == 0) {
+	ERTS_HLT_SMP_MEMBAR_LoadLoad_LoadStore;
+	schedule_tw_timer_destroy(tmr);
+    }
+}
+
+static void
+tw_proc_timeout(void *vtwtp)
+{
+    ErtsTWTimer *twtp = (ErtsTWTimer *) vtwtp;
+    Process *proc = (Process *) twtp->p;
+    if (proc_timeout_common(proc, vtwtp))
+	tw_timer_dec_refc(twtp);
+    tw_timer_dec_refc(twtp);
+}
+
+static void
+tw_port_timeout(void *vtwtp)
+{
+    ErtsTWTimer *twtp = (ErtsTWTimer *) vtwtp;
+    Port *port = (Port *) twtp->p;
+    if (port_timeout_common(port, vtwtp))
+	tw_timer_dec_refc(twtp);
+    tw_timer_dec_refc(twtp);
+}
+
+static void
+tw_ptimer_cancel(void *vtwtp)
+{
+    tw_timer_dec_refc((ErtsTWTimer *) vtwtp);    
+}
+
+static void
+cancel_tw_timer(ErtsSchedulerData *esdp, ErtsTWTimer *tmr)
+{
+    ERTS_HLT_ASSERT((tmr->head.roflgs & ERTS_TMR_ROFLG_SID_MASK)
+		    == (Uint32) esdp->no);
+    erts_twheel_cancel_timer(esdp->timer_wheel, &tmr->tw_tmr);
+}
+
+static ErtsTWTimer *
+create_tw_timer(ErtsSchedulerData *esdp, 
+		void *p, int is_proc,
+		ErtsMonotonicTime timeout_pos)
+{
+    ErtsTWTimer *tmr;
+    void (*timeout_func)(void *);
+
+    tmr = tw_timer_alloc();
+    erts_twheel_init_timer(&tmr->tw_tmr);
+
+    tmr->head.roflgs = (Uint32) esdp->no;
+    ERTS_HLT_ASSERT((tmr->head.roflgs
+		     & ~ERTS_TMR_ROFLG_SID_MASK) == 0);
+    tmr->p = p;
+    if (is_proc) {
+	tmr->head.roflgs |= ERTS_TMR_ROFLG_PROC;
+	timeout_func = tw_proc_timeout;
+	erts_proc_inc_refc((Process *) p);
+    }
+    else {
+	tmr->head.roflgs |= ERTS_TMR_ROFLG_PORT;
+	timeout_func = tw_port_timeout;
+	erts_port_inc_refc((Port *) p);
+    }
+
+    erts_smp_atomic32_init_nob(&tmr->head.refc, 2);
+
+    erts_twheel_set_timer(esdp->timer_wheel,
+			  &tmr->tw_tmr,
+			  timeout_func,
+			  tw_ptimer_cancel,
+			  tmr,
+			  timeout_pos);
+
+    return tmr;
+}
+
+/*
+ * Basic high level timer stuff
+ */
+
+static ERTS_INLINE void
+hl_timer_destroy(ErtsHLTimer *tmr)
+{
+    Uint32 roflgs = tmr->head.roflgs;
+    if (!(roflgs & ERTS_TMR_ROFLG_BIF_TMR))
+	erts_free(ERTS_ALC_T_HL_PTIMER, tmr);
+    else {
+	if (roflgs & ERTS_TMR_ROFLG_PRE_ALC)
+	    bif_timer_pre_free(tmr);
+	else if (roflgs & ERTS_TMR_ROFLG_ABIF_TMR)
+	    erts_free(ERTS_ALC_T_ABIF_TIMER, tmr);
+	else
+	    erts_free(ERTS_ALC_T_BIF_TIMER, tmr);
+    }
+}
+
+static void
+scheduled_hl_timer_destroy(void *vtmr)
+{
+    hl_timer_destroy((ErtsHLTimer *) vtmr);
+}
+
+static void
+schedule_hl_timer_destroy(ErtsHLTimer *tmr, Uint32 roflgs)
+{
+    UWord size;
+
+    /*
+     * Reference to process/port can be dropped
+     * at once...
+     */
+
+    ERTS_HLT_ASSERT(erts_smp_atomic32_read_nob(&tmr->head.refc) == 0);
+
+    if (roflgs & ERTS_TMR_ROFLG_REG_NAME) {
+	ERTS_HLT_ASSERT(is_atom(tmr->receiver.name));
+    }
+    else if (roflgs & ERTS_TMR_ROFLG_PROC) {
+	ERTS_HLT_ASSERT(tmr->receiver.proc);
+	erts_proc_dec_refc(tmr->receiver.proc);
+    }
+    else if (roflgs & ERTS_TMR_ROFLG_PORT) {
+	ERTS_HLT_ASSERT(tmr->receiver.port);
+	erts_port_dec_refc(tmr->receiver.port);
+    }
+
+    if (!(roflgs & ERTS_TMR_ROFLG_BIF_TMR))
+	size = ERTS_HL_PTIMER_SIZE;
+    else {
+	/*
+	 * Message buffer can be dropped at
+	 * once...
+	 */
+	size = sizeof(ErtsHLTimer);
+    }
+
+    erts_schedule_thr_prgr_later_cleanup_op(
+	scheduled_hl_timer_destroy, tmr,
+	&tmr->time.cleanup, size);
+}
+
+static ERTS_INLINE void
+hl_timer_pre_dec_refc(ErtsHLTimer *tmr)
+{
+#ifdef ERTS_HLT_DEBUG
+    erts_aint_t refc;
+    refc = erts_smp_atomic32_dec_read_nob(&tmr->head.refc);
+    ERTS_HLT_ASSERT(refc > 0);
+#else
+    erts_smp_atomic32_dec_nob(&tmr->head.refc);
+#endif
+}
+
+static ERTS_INLINE void
+hl_timer_dec_refc(ErtsHLTimer *tmr, Uint32 roflgs)
+{
+    if (erts_smp_atomic32_dec_read_relb(&tmr->head.refc) == 0) {
+	ERTS_HLT_SMP_MEMBAR_LoadLoad_LoadStore;
+	schedule_hl_timer_destroy(tmr, roflgs);
+    }
+}
+
+static void hlt_service_timeout(void *vesdp);
+#ifdef ERTS_SMP
+static void handle_canceled_queue(ErtsSchedulerData *esdp,
+				  ErtsHLTCncldTmrQ *cq,
+				  int use_limit,
+				  int ops_limit,
+				  int *need_thr_progress,
+				  ErtsThrPrgrVal *thr_prgr_p,
+				  int *need_more_work);
+#endif
+
+static ERTS_INLINE void
+check_canceled_queue(ErtsSchedulerData *esdp, ErtsHLTimerService *srv)
+{
+#if defined(ERTS_SMP) && ERTS_TMR_CHECK_CANCEL_ON_CREATE
+    ErtsHLTCncldTmrQ *cq = &srv->canceled_queue;
+    if (cq->head.first != cq->head.unref_end)
+	handle_canceled_queue(esdp, cq, 1,
+			      ERTS_TMR_CANCELED_TIMER_SMALL_LIMIT,
+			      NULL, NULL, NULL);
+#endif
+}
+
+static void
+hlt_delete_abtm(ErtsHLTimer *tmr)
+{
+    Process *proc;
+
+    ERTS_HLT_ASSERT(tmr->head.roflgs & ERTS_TMR_ROFLG_ABIF_TMR);
+
+    proc = erts_proc_lookup(tmr->abtm.accessor);
+
+    if (proc) {
+	int deref = 0;
+	erts_smp_proc_lock(proc, ERTS_PROC_LOCK_BTM);
+	if (tmr->abtm.tree.parent != ERTS_HLT_PFIELD_NOT_IN_TABLE) {
+	    abtm_rbt_delete(&proc->accessor_bif_timers, tmr);
+	    deref = 1;
+	    tmr->abtm.tree.parent = ERTS_HLT_PFIELD_NOT_IN_TABLE;
+	}
+	erts_smp_proc_unlock(proc, ERTS_PROC_LOCK_BTM);
+	if (deref)
+	    hl_timer_pre_dec_refc(tmr);
+    }
+}
+
+static ErtsHLTimer *
+create_hl_timer(ErtsSchedulerData *esdp,
+		ErtsMonotonicTime timeout_pos,
+		int short_time, int is_bif_tmr,
+		void *rcvrp, Eterm rcvr, Eterm acsr,
+		Eterm msg, Uint32 *refn)
+{
+    ErtsHLTimerService *srv = esdp->timer_service;
+    ErtsHLTimer *tmr, *st_tmr;
+    erts_aint32_t refc;
+    Uint32 roflgs;
+    int is_abif_tmr = is_bif_tmr && is_value(acsr) && acsr != rcvr;
+
+    check_canceled_queue(esdp, srv);
+
+    ERTS_HLT_ASSERT((esdp->no & ~ERTS_TMR_ROFLG_SID_MASK) == 0);
+
+    roflgs = ((Uint32) esdp->no) | ERTS_TMR_ROFLG_HLT;
+
+    if (!is_bif_tmr)
+	tmr = erts_alloc(ERTS_ALC_T_HL_PTIMER,
+			 ERTS_HL_PTIMER_SIZE);
+    else if (short_time) {
+	tmr = bif_timer_pre_alloc();
+	if (!tmr)
+	    goto alloc_bif_timer;
+	roflgs |= ERTS_TMR_ROFLG_PRE_ALC;
+    }
+    else {
+    alloc_bif_timer:
+	if (is_abif_tmr)
+	    tmr = erts_alloc(ERTS_ALC_T_ABIF_TIMER,
+			     ERTS_ABIF_TIMER_SIZE);
+	else
+	    tmr = erts_alloc(ERTS_ALC_T_BIF_TIMER,
+			     ERTS_BIF_TIMER_SIZE);
+    }
+
+    tmr->timeout = timeout_pos;
+
+    if (!is_bif_tmr) {
+	if (is_internal_pid(rcvr)) {
+	    erts_proc_inc_refc((Process *) rcvrp);
+	    tmr->receiver.proc = (Process *) rcvrp;
+	    roflgs |= ERTS_TMR_ROFLG_PROC;
+	}
+	else {
+	    erts_port_inc_refc((Port *) rcvrp);
+	    ERTS_HLT_ASSERT(is_internal_port(rcvr));
+	    tmr->receiver.port = (Port *) rcvrp;
+	    roflgs |= ERTS_TMR_ROFLG_PORT;
+	}
+	refc = 2;
+    }
+    else {
+	Uint hsz;
+
+	roflgs |= ERTS_TMR_ROFLG_BIF_TMR;
+	if (is_internal_pid(rcvr)) {
+	    roflgs |= ERTS_TMR_ROFLG_PROC;
+	    tmr->receiver.proc = (Process *) rcvrp;
+	    refc = 2;
+	}
+	else {
+	    ERTS_HLT_ASSERT(is_atom(rcvr));
+	    roflgs |= ERTS_TMR_ROFLG_REG_NAME;
+	    tmr->receiver.name = rcvr;
+	    refc = 1;
+	}
+
+	hsz = is_immed(msg) ? ((Uint) 0) : size_object(msg);
+	if (!hsz) {
+	    tmr->btm.message = msg;
+	    tmr->btm.bp = NULL;
+	}
+	else {
+	    ErlHeapFragment *bp = new_message_buffer(hsz);
+	    Eterm *hp = bp->mem;
+	    tmr->btm.message = copy_struct(msg, hsz, &hp, &bp->off_heap);
+	    tmr->btm.bp = bp;
+	}
+	tmr->btm.refn[0] = refn[0];
+	tmr->btm.refn[1] = refn[1];
+	tmr->btm.refn[2] = refn[2];
+
+	tmr->btm.proc_tree.parent = ERTS_HLT_PFIELD_NOT_IN_TABLE;
+	if (is_abif_tmr) {
+	    Process *aproc;
+	    roflgs |= ERTS_TMR_ROFLG_ABIF_TMR;
+	    tmr->abtm.accessor = acsr;
+	    aproc = erts_proc_lookup(acsr);
+	    if (!aproc)
+		tmr->abtm.tree.parent = ERTS_HLT_PFIELD_NOT_IN_TABLE;
+	    else {
+		refc++;
+		erts_smp_proc_lock(aproc, ERTS_PROC_LOCK_BTM);
+		abtm_rbt_insert(&aproc->accessor_bif_timers, tmr);
+		erts_smp_proc_unlock(aproc, ERTS_PROC_LOCK_BTM);
+	    }
+	}
+    }
+
+    tmr->head.roflgs = roflgs;
+    erts_smp_atomic32_init_nob(&tmr->head.refc, refc);
+    erts_smp_atomic32_init_nob(&tmr->state, ERTS_TMR_STATE_ACTIVE);
+
+    ERTS_HLT_HDBG_CHK_SRV(srv);
+
+    if (!srv->next_timeout
+	|| tmr->timeout < srv->next_timeout->timeout) {
+	if (srv->next_timeout)
+	    erts_twheel_cancel_timer(esdp->timer_wheel,
+				     &srv->service_timer);
+	erts_twheel_set_timer(esdp->timer_wheel,
+			      &srv->service_timer,
+			      hlt_service_timeout,
+			      NULL,
+			      (void *) esdp,
+			      tmr->timeout);
+	srv->next_timeout = tmr;
+    }
+
+    st_tmr = time_rbt_lookup_insert(&srv->time_tree, tmr);
+    tmr->time.tree.same_time = st_tmr;
+    if (st_tmr)
+	same_time_list_insert(&st_tmr->time.tree.same_time, tmr);
+
+    if (is_bif_tmr)
+	btm_rbt_insert(&srv->btm_tree, tmr);
+
+#ifdef ERTS_HLT_HARD_DEBUG
+    tmr->pending_timeout = 0;
+#endif
+
+    ERTS_HLT_HDBG_CHK_SRV(srv);
+
+    return tmr;
+}
+
+static ERTS_INLINE void
+hlt_bif_timer_timeout(ErtsHLTimer *tmr, Uint32 roflgs)
+{
+    ErtsProcLocks proc_locks = ERTS_PROC_LOCKS_MSG_SEND;
+    Process *proc;
+    int queued_message = 0;
+    int dec_refc = 0;
+    Uint32 is_reg_name = (roflgs & ERTS_TMR_ROFLG_REG_NAME);
+    ERTS_HLT_ASSERT(roflgs & ERTS_TMR_ROFLG_BIF_TMR);
+
+    if (tmr->head.roflgs & ERTS_TMR_ROFLG_ABIF_TMR)
+	hlt_delete_abtm(tmr);
+
+    if (is_reg_name) {
+	Eterm pid;
+	ERTS_HLT_ASSERT(is_atom(tmr->receiver.name));
+	pid = erts_whereis_name_to_id(NULL, tmr->receiver.name);
+	proc = erts_proc_lookup(pid);
+    }
+    else {
+	ERTS_HLT_ASSERT(roflgs & ERTS_TMR_ROFLG_PROC);
+	ERTS_HLT_ASSERT(tmr->receiver.proc);
+
+	proc = tmr->receiver.proc;
+	proc_locks |= ERTS_PROC_LOCK_BTM;
+    }
+    if (proc) {
+	erts_smp_proc_lock(proc, proc_locks);
+	/*
+	 * If process is exiting, let it clean up
+	 * the btm tree by itself (it may be in
+	 * the middle of tree destruction).
+	 */
+	if (!ERTS_PROC_IS_EXITING(proc)) {
+	    erts_queue_message(proc, &proc_locks, tmr->btm.bp,
+			       tmr->btm.message, NIL);
+	    erts_smp_proc_unlock(proc, ERTS_PROC_LOCKS_MSG_SEND);
+	    queued_message = 1;
+	    proc_locks &= ~ERTS_PROC_LOCKS_MSG_SEND;
+	    tmr->btm.bp = NULL;
+	    if (tmr->btm.proc_tree.parent != ERTS_HLT_PFIELD_NOT_IN_TABLE) {
+		proc_btm_rbt_delete(&proc->bif_timers, tmr);
+		tmr->btm.proc_tree.parent = ERTS_HLT_PFIELD_NOT_IN_TABLE;
+		dec_refc = 1;
+	    }
+	}
+	if (proc_locks)
+	    erts_smp_proc_unlock(proc, proc_locks);
+	if (dec_refc)
+	    hl_timer_pre_dec_refc(tmr);
+    }
+    if (!queued_message && tmr->btm.bp)
+	free_message_buffer(tmr->btm.bp);
+}
+
+static ERTS_INLINE void
+hlt_proc_timeout(ErtsHLTimer *tmr)
+{
+    if (proc_timeout_common(tmr->receiver.proc, (void *) tmr))
+	hl_timer_dec_refc(tmr, tmr->head.roflgs);
+}
+
+static ERTS_INLINE void
+hlt_port_timeout(ErtsHLTimer *tmr)
+{
+    if (port_timeout_common(tmr->receiver.port, (void *) tmr))
+	hl_timer_dec_refc(tmr, tmr->head.roflgs);
+}
+
+static void hlt_timeout(ErtsHLTimer *tmr, void *vsrv)
+{
+    ErtsHLTimerService *srv = (ErtsHLTimerService *) vsrv;
+    Uint32 roflgs;
+    erts_aint32_t state;
+
+    ERTS_HLT_HDBG_CHK_SRV(srv);
+
+    roflgs = tmr->head.roflgs;
+    ERTS_HLT_ASSERT(roflgs & ERTS_TMR_ROFLG_HLT);
+
+    state = erts_smp_atomic32_cmpxchg_acqb(&tmr->state,
+					   ERTS_TMR_STATE_TIMED_OUT,
+					   ERTS_TMR_STATE_ACTIVE);
+
+    ERTS_HLT_ASSERT(state == ERTS_TMR_STATE_CANCELED
+		    || state == ERTS_TMR_STATE_ACTIVE);
+
+    if (state == ERTS_TMR_STATE_ACTIVE) {
+
+	if (roflgs & ERTS_TMR_ROFLG_BIF_TMR)
+	    hlt_bif_timer_timeout(tmr, roflgs);
+	else if (roflgs & ERTS_TMR_ROFLG_PROC)
+	    hlt_proc_timeout(tmr);
+	else {
+	    ERTS_HLT_ASSERT(roflgs & ERTS_TMR_ROFLG_PORT);
+	    hlt_port_timeout(tmr);
+	}
+    }
+
+    tmr->time.tree.parent = ERTS_HLT_PFIELD_NOT_IN_TABLE;
+    if ((roflgs & ERTS_TMR_ROFLG_BIF_TMR)
+	&& tmr->btm.tree.parent != ERTS_HLT_PFIELD_NOT_IN_TABLE) {
+	btm_rbt_delete(&srv->btm_tree, tmr);
+	tmr->btm.tree.parent = ERTS_HLT_PFIELD_NOT_IN_TABLE;
+    }
+
+    ERTS_HLT_HDBG_CHK_SRV(srv);
+
+    hl_timer_dec_refc(tmr, roflgs);
+}
+
+#ifdef ERTS_HLT_HARD_DEBUG
+static void
+set_pending_timeout(ErtsHLTimer *tmr, void *unused)
+{
+    tmr->pending_timeout = -1;
+}
+#endif
+
+static void
+hlt_service_timeout(void *vesdp)
+{
+    ErtsSchedulerData *esdp = (ErtsSchedulerData *) vesdp;
+    ErtsHLTimerService *srv = esdp->timer_service;
+    ErtsHLTimer *tmr = srv->next_timeout;
+    int yield;
+
+    ERTS_HLT_HDBG_CHK_SRV(srv);
+
+    ERTS_HLT_ASSERT(esdp == erts_get_scheduler_data());
+
+    ERTS_HLT_ASSERT(!srv->yield.root || srv->yield.root == tmr);
+    ERTS_HLT_ASSERT(tmr);
+    ERTS_HLT_ASSERT(tmr->timeout <= erts_get_monotonic_time(esdp));
+
+    if (!srv->yield.root) {
+	ERTS_HLT_ASSERT(tmr->time.tree.parent
+			!= ERTS_HLT_PFIELD_NOT_IN_TABLE);
+	time_rbt_delete(&srv->time_tree, tmr);
+	tmr->time.tree.parent = ERTS_HLT_PFIELD_NOT_IN_TABLE;
+#ifdef ERTS_HLT_HARD_DEBUG
+	tmr->pending_timeout = 1;
+	if (tmr->time.tree.same_time)
+	    same_time_list_foreach(tmr->time.tree.same_time, set_pending_timeout, NULL);
+#endif
+    }
+
+    if (!tmr->time.tree.same_time && !srv->yield.root)
+	yield = 0;
+    else {
+	yield = same_time_list_foreach_destroy_yielding(
+	    &tmr->time.tree.same_time, hlt_timeout, (void *) srv,
+	    &srv->yield.state, ERTS_TMR_TIMEOUT_YIELD_LIMIT);
+    }
+
+    if (yield)
+	srv->yield.root = tmr;
+    else {
+	srv->yield.root = NULL;
+	hlt_timeout(tmr, (void *) srv);
+
+	tmr = time_rbt_smallest(srv->time_tree);
+	srv->next_timeout = tmr;
+    }
+
+    ERTS_HLT_HDBG_CHK_SRV(srv);
+
+    if (tmr)
+	erts_twheel_set_timer(esdp->timer_wheel,
+			      &srv->service_timer,
+			      hlt_service_timeout,
+			      NULL,
+			      vesdp,
+			      tmr->timeout);
+}
+
+static void
+hlt_delete_timer(ErtsSchedulerData *esdp, ErtsHLTimer *tmr)
+{
+    ErtsHLTimerService *srv = esdp->timer_service;
+
+    ERTS_HLT_HDBG_CHK_SRV(srv);
+
+    if (tmr->head.roflgs & ERTS_TMR_ROFLG_BIF_TMR) {
+
+	if (tmr->btm.tree.parent != ERTS_HLT_PFIELD_NOT_IN_TABLE) {
+	    btm_rbt_delete(&srv->btm_tree, tmr);
+	    tmr->btm.tree.parent = ERTS_HLT_PFIELD_NOT_IN_TABLE;
+	}
+
+	if (tmr->head.roflgs & ERTS_TMR_ROFLG_ABIF_TMR)
+	    hlt_delete_abtm(tmr);
+    }
+
+    if (tmr->time.tree.parent == ERTS_HLT_PFIELD_NOT_IN_TABLE) {
+	/* Already removed... */
+	ERTS_HLT_HDBG_CHK_SRV(srv);
+	return;
+    }
+
+    if (tmr->time.tree.parent & ERTS_HLT_PFLG_SAME_TIME) {
+	same_time_list_delete(tmr);
+    }
+    else if (tmr->time.tree.same_time) {
+	ErtsHLTimer *st_container;
+
+	ERTS_HLT_ASSERT((tmr->time.tree.parent & ERTS_HLT_PFLG_SAME_TIME) == 0);
+	st_container = tmr->time.tree.same_time->time.tree.u.l.prev;
+
+	ERTS_HLT_ASSERT(st_container);
+	ERTS_HLT_ASSERT(st_container->time.tree.parent
+			 & ERTS_HLT_PFLG_SAME_TIME);
+	ERTS_HLT_ASSERT(tmr->timeout == st_container->timeout);
+
+	same_time_list_delete(st_container);
+	st_container->time.tree.same_time = tmr->time.tree.same_time;
+	same_time_list_new_root(&st_container->time.tree.same_time);
+
+	time_rbt_replace(&srv->time_tree, tmr, st_container);
+	ERTS_HLT_ASSERT((st_container->time.tree.parent
+			 & ERTS_HLT_PFLG_SAME_TIME) == 0);
+
+	if (srv->next_timeout == tmr)
+	    srv->next_timeout = st_container;
+    }
+    else {
+	ERTS_HLT_ASSERT((tmr->time.tree.parent & ERTS_HLT_PFLG_SAME_TIME) == 0);
+	time_rbt_delete(&srv->time_tree, tmr);
+	if (tmr == srv->next_timeout) {
+	    ErtsHLTimer *smlst;
+	    erts_twheel_cancel_timer(esdp->timer_wheel,
+				     &srv->service_timer);
+	    smlst = time_rbt_smallest(srv->time_tree);
+	    srv->next_timeout = smlst;
+	    if (smlst) {
+		ERTS_HLT_ASSERT(smlst->timeout > tmr->timeout);
+		erts_twheel_set_timer(esdp->timer_wheel,
+				      &srv->service_timer,
+				      hlt_service_timeout,
+				      NULL,
+				      (void *) esdp,
+				      smlst->timeout);
+	    }
+	}
+    }
+    tmr->time.tree.parent = ERTS_HLT_PFIELD_NOT_IN_TABLE;
+
+    hl_timer_dec_refc(tmr, tmr->head.roflgs);
+
+    ERTS_HLT_HDBG_CHK_SRV(srv);
+}
+
+/*
+ * Pass canceled timers back to originating scheduler
+ */
+
+static ERTS_INLINE void
+cleanup_sched_local_canceled_timer(ErtsSchedulerData *esdp,
+				   ErtsTimer *tmr)
+{
+    Uint32 roflgs = tmr->head.roflgs;
+    ERTS_HLT_ASSERT(esdp == erts_get_scheduler_data());
+    ERTS_HLT_ASSERT((tmr->head.roflgs & ERTS_TMR_ROFLG_SID_MASK)
+		    == (Uint32) esdp->no);
+    if (roflgs & ERTS_TMR_ROFLG_HLT) {
+	hlt_delete_timer(esdp, &tmr->hlt);
+	hl_timer_dec_refc(&tmr->hlt, roflgs);
+    }
+    else {
+	cancel_tw_timer(esdp, &tmr->twt);
+	tw_timer_dec_refc(&tmr->twt);
+    }
+}
+
+#ifdef ERTS_SMP
+
+static void
+init_canceled_queue(ErtsHLTCncldTmrQ *cq)
+{
+    erts_atomic_init_nob(&cq->tail.data.marker.u.next, ERTS_AINT_NULL);
+    erts_atomic_init_nob(&cq->tail.data.last,
+			 (erts_aint_t) &cq->tail.data.marker);
+    cq->head.first = (ErtsTimer *) &cq->tail.data.marker;
+    cq->head.unref_end = (ErtsTimer *) &cq->tail.data.marker;
+    cq->head.next.thr_progress = erts_thr_progress_current();
+    cq->head.next.thr_progress_reached = 1;
+    cq->head.next.unref_end = (ErtsTimer *) &cq->tail.data.marker;
+    cq->head.used_marker = 1;
+}
+
+static ERTS_INLINE int
+cq_enqueue(ErtsHLTCncldTmrQ *cq, ErtsTimer *tmr, int cinit)
+{
+    erts_aint_t itmp;
+    ErtsTimer *enq, *this = tmr;
+
+    erts_atomic_init_nob(&this->head.u.next, ERTS_AINT_NULL);
+    /* Enqueue at end of list... */
+
+    enq = (ErtsTimer *) erts_atomic_read_nob(&cq->tail.data.last);
+    itmp = erts_atomic_cmpxchg_relb(&enq->head.u.next,
+				    (erts_aint_t) this,
+				    ERTS_AINT_NULL);
+    if (itmp == ERTS_AINT_NULL) {
+	/* We are required to move last pointer */
+#ifdef DEBUG
+	ASSERT(ERTS_AINT_NULL == erts_atomic_read_nob(&this->head.u.next));
+	ASSERT(((erts_aint_t) enq)
+	       == erts_atomic_xchg_relb(&cq->tail.data.last,
+					(erts_aint_t) this));
+#else
+	erts_atomic_set_relb(&cq->tail.data.last, (erts_aint_t) this);
+#endif
+	return 1;
+    }
+    else {
+	/*
+	 * We *need* to insert element somewhere in between the
+	 * last element we read earlier and the actual last element.
+	 */
+	int i = cinit;
+
+	while (1) {
+	    erts_aint_t itmp2;
+	    erts_atomic_set_nob(&this->head.u.next, itmp);
+	    itmp2 = erts_atomic_cmpxchg_relb(&enq->head.u.next,
+					     (erts_aint_t) this,
+					     itmp);
+	    if (itmp == itmp2)
+		return 0; /* inserted this */
+	    if ((i & 1) == 0)
+		itmp = itmp2;
+	    else {
+		enq = (ErtsTimer *) itmp2;
+		itmp = erts_atomic_read_acqb(&enq->head.u.next);
+		ASSERT(itmp != ERTS_AINT_NULL);
+	    }
+	    i++;
+	}
+    }
+}
+
+static ERTS_INLINE erts_aint_t
+check_insert_marker(ErtsHLTCncldTmrQ *cq, erts_aint_t ilast)
+{
+    if (!cq->head.used_marker
+	&& cq->head.unref_end == (ErtsTimer *) ilast) {
+	erts_aint_t itmp;
+	ErtsTimer *last = (ErtsTimer *) ilast;
+
+	erts_atomic_init_nob(&cq->tail.data.marker.u.next, ERTS_AINT_NULL);
+	itmp = erts_atomic_cmpxchg_relb(&last->head.u.next,
+					(erts_aint_t) &cq->tail.data.marker,
+					ERTS_AINT_NULL);
+	if (itmp == ERTS_AINT_NULL) {
+	    ilast = (erts_aint_t) &cq->tail.data.marker;
+	    cq->head.used_marker = !0;
+	    erts_atomic_set_relb(&cq->tail.data.last, ilast);
+	}
+    }
+    return ilast;
+}
+
+static ERTS_INLINE ErtsTimer *
+cq_dequeue(ErtsHLTCncldTmrQ *cq)
+{
+    ErtsTimer *tmr;
+
+    if (cq->head.first == cq->head.unref_end)
+	return NULL;
+
+    tmr = cq->head.first;
+    if (tmr == (ErtsTimer *) &cq->tail.data.marker) {
+	ASSERT(cq->head.used_marker);
+	cq->head.used_marker = 0;
+	tmr = (ErtsTimer *) erts_atomic_read_nob(&tmr->head.u.next);
+	if (tmr == cq->head.unref_end) {
+	    cq->head.first = tmr;
+	    return NULL;
+	}
+    }
+
+    cq->head.first = (ErtsTimer *) erts_atomic_read_nob(&tmr->head.u.next);
+
+    ASSERT(cq->head.first);
+
+    return tmr;
+}
+
+static int
+cq_check_incoming(ErtsSchedulerData *esdp, ErtsHLTCncldTmrQ *cq)
+{
+    erts_aint_t ilast = erts_atomic_read_nob(&cq->tail.data.last);
+    if (((ErtsTimer *) ilast) == (ErtsTimer *) &cq->tail.data.marker
+	&& cq->head.first == (ErtsTimer *) &cq->tail.data.marker) {
+	/* Nothing more to do... */
+	return 0;
+    }
+
+    if (cq->head.next.thr_progress_reached
+	|| erts_thr_progress_has_reached(cq->head.next.thr_progress)) {
+	cq->head.next.thr_progress_reached = 1;
+	/* Move unreferenced end pointer forward... */
+
+	ERTS_HLT_SMP_MEMBAR_LoadLoad_LoadStore;
+
+	cq->head.unref_end = cq->head.next.unref_end;
+
+	ilast = check_insert_marker(cq, ilast);
+
+	if (cq->head.unref_end != (ErtsTimer *) ilast) {
+	    cq->head.next.unref_end = (ErtsTimer *) ilast;
+	    cq->head.next.thr_progress = erts_thr_progress_later(esdp);
+	    cq->head.next.thr_progress_reached = 0;
+	}
+    }
+    return 1;
+}
+
+static ERTS_INLINE void
+store_earliest_thr_prgr(ErtsThrPrgrVal *prev_val, ErtsHLTCncldTmrQ *cq)
+{
+    if (!cq->head.next.thr_progress_reached
+	&& (*prev_val == ERTS_THR_PRGR_INVALID
+	    || erts_thr_progress_cmp(cq->head.next.thr_progress,
+				     *prev_val) < 0)) {
+	*prev_val = cq->head.next.thr_progress;
+    }
+}
+
+static void
+handle_canceled_queue(ErtsSchedulerData *esdp,
+		      ErtsHLTCncldTmrQ *cq,
+		      int use_limit,
+		      int ops_limit,
+		      int *need_thr_progress,
+		      ErtsThrPrgrVal *thr_prgr_p,
+		      int *need_more_work)
+{
+    int need_thr_prgr = 0;
+    int need_mr_wrk = 0;
+    int have_checked_incoming = 0;
+    int ops = 0;
+
+    ERTS_HLT_ASSERT(cq == &esdp->timer_service->canceled_queue);
+
+    while (1) {
+	ErtsTimer *tmr = cq_dequeue(cq);
+
+	if (tmr)
+	    cleanup_sched_local_canceled_timer(esdp, tmr);
+	else {
+	    if (have_checked_incoming)
+		break;
+	    need_thr_prgr = cq_check_incoming(esdp, cq);
+	    if (need_thr_progress) {
+		*need_thr_progress |= need_thr_prgr;
+		if (need_thr_prgr)
+		    store_earliest_thr_prgr(thr_prgr_p, cq);
+	    }
+	    have_checked_incoming = 1;
+	    continue;
+	}
+
+	if (use_limit && ++ops >= ops_limit) {
+	    if (cq->head.first != cq->head.unref_end) {
+		need_mr_wrk = 1;
+		if (need_more_work)
+		    *need_more_work |= 1;
+	    }
+	    break;
+	}
+    }
+
+    if (need_thr_progress && !(need_thr_prgr | need_mr_wrk)) {
+	need_thr_prgr = cq_check_incoming(esdp, cq);
+	*need_thr_progress |= need_thr_prgr;
+	if (need_thr_prgr)
+	    store_earliest_thr_prgr(thr_prgr_p, cq);
+    }
+}
+
+void
+erts_handle_canceled_timers(void *vesdp,
+			    int *need_thr_progress,
+			    ErtsThrPrgrVal *thr_prgr_p,
+			    int *need_more_work)
+{
+    ErtsSchedulerData *esdp = (ErtsSchedulerData *) vesdp;
+    ERTS_HLT_ASSERT(esdp == erts_get_scheduler_data());
+
+    handle_canceled_queue(esdp, &esdp->timer_service->canceled_queue,
+			  1, ERTS_TMR_CANCELED_TIMER_LIMIT,
+			  need_thr_progress, thr_prgr_p,
+			  need_more_work);
+}
+
+#endif /* ERTS_SMP */
+
+static void
+queue_canceled_timer(ErtsSchedulerData *esdp, int rsched_id, ErtsTimer *tmr)
+{
+#ifdef ERTS_SMP
+    ErtsHLTCncldTmrQ *cq;
+    cq = &ERTS_SCHEDULER_IX(rsched_id-1)->timer_service->canceled_queue;
+    if (cq_enqueue(cq, tmr, rsched_id - (int) esdp->no))
+	erts_notify_canceled_timer(esdp, rsched_id);
+#else
+    ERTS_INTERNAL_ERROR("Unexpected enqueue of canceled timer");
+#endif
+}
+
+static void
+continue_cancel_ptimer(ErtsSchedulerData *esdp, ErtsTimer *tmr)
+{
+#ifdef ERTS_SMP
+    Uint32 sid = (tmr->head.roflgs & ERTS_TMR_ROFLG_SID_MASK);
+
+    if (esdp->no != sid)
+	queue_canceled_timer(esdp, sid, tmr);
+    else
+#endif
+	cleanup_sched_local_canceled_timer(esdp, tmr);
+}
+
+/*
+ * BIF timer specific
+ */
+
+Uint erts_bif_timer_memory_size(void)
+{
+    return (Uint) 0;
+}
+
+static BIF_RETTYPE
+setup_bif_timer(Process *c_p, ErtsMonotonicTime timeout_pos,
+		int short_time, Eterm rcvr, Eterm acsr,
+		Eterm msg, int wrap)
+{
+    BIF_RETTYPE ret;
+    Eterm ref, tmo_msg, *hp;
+    ErtsHLTimer *tmr;
+    ErtsSchedulerData *esdp;
+    DeclareTmpHeap(tmp_hp, 4, c_p);
+
+    if (is_not_internal_pid(rcvr) && is_not_atom(rcvr))
+	goto badarg;
+
+    esdp = ERTS_PROC_GET_SCHDATA(c_p);
+
+    hp = HAlloc(c_p, REF_THING_SIZE);
+    ref = erts_sched_make_ref_in_buffer(esdp, hp);
+
+    ASSERT(erts_get_ref_numbers_thr_id(
+	       internal_ref_numbers(ref)) == (Uint32) esdp->no);
+
+    UseTmpHeap(4, c_p);
+
+    tmo_msg = wrap ? TUPLE3(tmp_hp, am_timeout, ref, msg) : msg;
+
+    tmr = create_hl_timer(esdp, timeout_pos, short_time, 1, NULL, 
+			  rcvr, acsr, tmo_msg, internal_ref_numbers(ref));
+
+    UnUseTmpHeap(4, c_p);
+
+    if (is_internal_pid(rcvr)) {
+	Process *proc = erts_pid2proc_opt(c_p, ERTS_PROC_LOCK_MAIN,
+					  rcvr, ERTS_PROC_LOCK_BTM,
+					  ERTS_P2P_FLG_INC_REFC);
+	if (!proc) {
+	    if (tmr->btm.bp)
+		free_message_buffer(tmr->btm.bp);
+	    hlt_delete_timer(esdp, tmr);
+	    hl_timer_destroy(tmr);
+	}
+	else {
+	    proc_btm_rbt_insert(&proc->bif_timers, tmr);
+	    erts_smp_proc_unlock(proc, ERTS_PROC_LOCK_BTM);
+	    tmr->receiver.proc = proc;
+	}
+    }
+
+    ERTS_BIF_PREP_RET(ret, ref);
+    return ret;
+
+badarg:
+
+    ERTS_BIF_PREP_ERROR(ret, c_p, BADARG);
+    return ret;
+}
+
+static int
+cancel_bif_timer(ErtsHLTimer *tmr)
+{
+    erts_aint_t state;
+    Uint32 roflgs;
+    int res;
+
+    state = erts_smp_atomic32_cmpxchg_acqb(&tmr->state,
+					   ERTS_TMR_STATE_CANCELED,
+					   ERTS_TMR_STATE_ACTIVE);
+    if (state != ERTS_TMR_STATE_ACTIVE)
+	return 0;
+
+    if (tmr->btm.bp)
+	free_message_buffer(tmr->btm.bp);
+
+    res = -1;
+
+    roflgs = tmr->head.roflgs;
+    if (roflgs & ERTS_TMR_ROFLG_PROC) {
+	Process *proc = tmr->receiver.proc;
+	ERTS_HLT_ASSERT(!(tmr->head.roflgs & ERTS_TMR_ROFLG_REG_NAME));
+
+	erts_smp_proc_lock(proc, ERTS_PROC_LOCK_BTM);
+	/*
+	 * If process is exiting, let it clean up
+	 * the btm tree by itself (it may be in
+	 * the middle of tree destruction).
+	 */
+	if (!ERTS_PROC_IS_EXITING(proc)
+	    && tmr->btm.proc_tree.parent != ERTS_HLT_PFIELD_NOT_IN_TABLE) {
+	    proc_btm_rbt_delete(&proc->bif_timers, tmr);
+	    tmr->btm.proc_tree.parent = ERTS_HLT_PFIELD_NOT_IN_TABLE;
+	    res = 1;
+	}
+	erts_smp_proc_unlock(proc, ERTS_PROC_LOCK_BTM);
+    }
+
+    return res;
+}
+
+static ERTS_INLINE Eterm
+access_sched_local_btm(Process *c_p, Eterm pid,
+		       Eterm tref, Uint32 *trefn,
+		       Uint32 *rrefn,
+		       int async, int cancel,
+		       int return_res,
+		       int info)
+{
+    ErtsSchedulerData *esdp;
+    ErtsHLTimerService *srv;
+    ErtsHLTimer *tmr;
+    Sint64 time_left;
+    Process *proc;
+    ErtsProcLocks proc_locks;
+
+    time_left = -1;
+
+    if (!c_p)
+	esdp = erts_get_scheduler_data();
+    else {
+	esdp = ERTS_PROC_GET_SCHDATA(c_p);
+	ERTS_HLT_ASSERT(esdp == erts_get_scheduler_data());
+    }
+
+    ERTS_HLT_ASSERT(erts_get_ref_numbers_thr_id(trefn)
+		    == (Uint32) esdp->no);
+
+    srv = esdp->timer_service;
+
+    tmr = btm_rbt_lookup(srv->btm_tree, trefn);
+    if (tmr) {
+	if (!cancel) {
+	    erts_aint32_t state = erts_smp_atomic32_read_acqb(&tmr->state);
+	    if (state == ERTS_TMR_STATE_ACTIVE)
+		time_left = get_time_left(esdp, tmr->timeout);
+	}
+	else {
+	    int cncl_res = cancel_bif_timer(tmr);
+	    if (cncl_res) {
+
+		time_left = get_time_left(esdp, tmr->timeout);
+
+		if (cncl_res > 0)
+		    hl_timer_dec_refc(tmr, tmr->head.roflgs);
+
+		hlt_delete_timer(esdp, tmr);
+	    }
+	}
+    }
+
+    if (!info)
+	return am_ok;
+
+    if (return_res) {
+	ERTS_HLT_ASSERT(c_p);
+	if (time_left < 0)
+	    return am_false;
+	else if (time_left <= (Sint64) MAX_SMALL)
+	    return make_small((Sint) time_left);
+	else {
+	    Uint hsz = ERTS_SINT64_HEAP_SIZE(time_left);
+	    Eterm *hp = HAlloc(c_p, hsz);
+	    return erts_sint64_to_big(time_left, &hp);
+	}
+    }
+
+    if (c_p) {
+	proc = c_p;
+	proc_locks = ERTS_PROC_LOCK_MAIN;
+    }
+    else {
+	proc = erts_proc_lookup(pid);
+	proc_locks = 0;
+    }
+
+    if (proc) {
+	Uint hsz;
+	ErlOffHeap *ohp;
+	ErlHeapFragment* bp;
+	Eterm *hp, msg, ref, result;
+#ifdef ERTS_HLT_DEBUG
+	Eterm *hp_end;
+#endif
+
+	hsz = 3; /* 2-tuple */
+	if (!async)
+	    hsz += REF_THING_SIZE;
+	else {
+	    if (is_non_value(tref) || proc != c_p)
+		hsz += REF_THING_SIZE;
+	    hsz += 1; /* upgrade to 3-tuple */
+	}
+	if (time_left > (Sint64) MAX_SMALL)
+	    hsz += ERTS_SINT64_HEAP_SIZE(time_left);
+
+	if (proc == c_p) {
+	    bp = NULL;
+	    ohp = NULL;
+	    hp = HAlloc(c_p, hsz);
+	}
+	else {
+	    hp = erts_alloc_message_heap(hsz,
+					 &bp,
+					 &ohp,
+					 proc,
+					 &proc_locks);
+	}
+
+#ifdef ERTS_HLT_DEBUG
+	hp_end = hp + hsz;
+#endif
+
+	if (time_left < 0)
+	    result = am_false;
+	else if (time_left <= (Sint64) MAX_SMALL)
+	    result = make_small((Sint) time_left);
+	else
+	    result = erts_sint64_to_big(time_left, &hp);
+
+	if (!async) {
+	    write_ref_thing(hp,
+			    rrefn[0],
+			    rrefn[1],
+			    rrefn[2]);
+	    ref = make_internal_ref(hp);
+	    hp += REF_THING_SIZE;
+	    msg = TUPLE2(hp, ref, result);
+
+	    ERTS_HLT_ASSERT(hp + 3 == hp_end);
+	}
+	else {
+	    Eterm tag = cancel ? am_cancel_timer : am_read_timer;
+	    if (is_value(tref) && proc == c_p)
+		ref = tref;
+	    else {
+		write_ref_thing(hp,
+				trefn[0],
+				trefn[1],
+				trefn[2]);
+		ref = make_internal_ref(hp);
+		hp += REF_THING_SIZE;
+	    }
+	    msg = TUPLE3(hp, tag, ref, result);
+
+	    ERTS_HLT_ASSERT(hp + 4 == hp_end);
+
+	}
+	erts_queue_message(proc, &proc_locks, bp, msg, NIL);
+
+	if (c_p)
+	    proc_locks &= ~ERTS_PROC_LOCK_MAIN;
+	if (proc_locks)
+	    erts_smp_proc_unlock(proc, proc_locks);
+    }
+
+    return am_ok;
+}
+
+#define ERTS_BTM_REQ_FLG_ASYNC		(((Uint32) 1) << 0)
+#define ERTS_BTM_REQ_FLG_CANCEL		(((Uint32) 1) << 1)
+#define ERTS_BTM_REQ_FLG_INFO		(((Uint32) 1) << 2)
+
+typedef struct {
+    Eterm pid;
+    Uint32 trefn[ERTS_REF_NUMBERS];
+    Uint32 rrefn[ERTS_REF_NUMBERS];
+    Uint32 flags;
+} ErtsBifTimerRequest;
+
+static void
+bif_timer_access_request(void *vreq)
+{
+    ErtsBifTimerRequest *req = (ErtsBifTimerRequest *) vreq;
+    int async = (int) (req->flags & ERTS_BTM_REQ_FLG_ASYNC);
+    int cancel = (int) (req->flags & ERTS_BTM_REQ_FLG_CANCEL);
+    int info = (int) (req->flags & ERTS_BTM_REQ_FLG_INFO);
+    (void) access_sched_local_btm(NULL, req->pid, THE_NON_VALUE,
+				  req->trefn, req->rrefn, async,
+				  cancel, 0, info);
+    erts_free(ERTS_ALC_T_TIMER_REQUEST, vreq);
+}
+
+static int
+try_access_sched_remote_btm(ErtsSchedulerData *esdp,
+			    Process *c_p, Uint32 sid,
+			    Eterm tref, Uint32 *trefn,
+			    int async, int cancel,
+			    int info, Eterm *resp)
+{
+    ErtsHLTimer *tmr;
+    Sint64 time_left;
+
+    ERTS_HLT_ASSERT(c_p);
+
+    /*
+     * Check if the timer is aimed at current
+     * process of if this process is an accessor
+     * of the timer...
+     */
+    erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_BTM);
+    tmr = proc_btm_rbt_lookup(c_p->bif_timers, trefn);
+    if (!tmr)
+	tmr = abtm_rbt_lookup(c_p->accessor_bif_timers, trefn);
+    erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_BTM);
+    if (!tmr)
+	return 0;
+
+    if (!cancel) {
+	erts_aint32_t state = erts_smp_atomic32_read_acqb(&tmr->state);
+	if (state == ERTS_TMR_STATE_ACTIVE)
+	    time_left = get_time_left(esdp, tmr->timeout);
+	else
+	    time_left = -1;
+    }
+    else {
+	int cncl_res = cancel_bif_timer(tmr);
+	if (!cncl_res)
+	    time_left = -1;
+	else {
+	    time_left = get_time_left(esdp, tmr->timeout);
+	    if (cncl_res > 0)
+		queue_canceled_timer(esdp, sid, (ErtsTimer *) tmr);
+	}
+    }
+
+    if (!info) {
+	*resp = am_ok;
+	return 1;
+    }
+
+    if (!async) {
+	if (time_left < 0)
+	    *resp = am_false;
+	else if (time_left <= (Sint64) MAX_SMALL)
+	    *resp = make_small((Sint) time_left);
+	else {
+	    Uint hsz = ERTS_SINT64_HEAP_SIZE(time_left);
+	    Eterm *hp = HAlloc(c_p, hsz);
+	    *resp = erts_sint64_to_big(time_left, &hp);
+	}
+    }
+    else {
+	Eterm tag, res, msg;
+	Uint hsz;
+	Eterm *hp;
+	ErtsProcLocks proc_locks = ERTS_PROC_LOCK_MAIN;
+
+	hsz = 4;
+	if (time_left > (Sint64) MAX_SMALL)
+	    hsz += ERTS_SINT64_HEAP_SIZE(time_left);
+
+	hp = HAlloc(c_p, hsz);
+	if (cancel)
+	    tag = am_cancel_timer;
+	else
+	    tag = am_read_timer;
+
+	if (time_left < 0)
+	    res = am_false;
+	else if (time_left <= (Sint64) MAX_SMALL)
+	    res = make_small((Sint) time_left);
+	else
+	    res = erts_sint64_to_big(time_left, &hp);
+
+	msg = TUPLE3(hp, tag, tref, res);
+
+	erts_queue_message(c_p, &proc_locks, NULL, msg, NIL);
+
+	proc_locks &= ~ERTS_PROC_LOCK_MAIN;
+	if (proc_locks)
+	    erts_smp_proc_unlock(c_p, proc_locks);
+
+	*resp = am_ok;
+    }
+    return 1;
+}
+
+static BIF_RETTYPE
+access_bif_timer(Process *c_p, Eterm tref, int cancel, int async, int info)
+{
+    BIF_RETTYPE ret;
+    ErtsSchedulerData *esdp;
+    Uint32 sid;
+    Uint32 *trefn;
+    Eterm res;
+
+    if (is_not_internal_ref(tref)) {
+	if (is_not_ref(tref))
+	    goto badarg;
+	else
+	    goto no_timer;
+    }
+
+    esdp = ERTS_PROC_GET_SCHDATA(c_p);
+
+    trefn = internal_ref_numbers(tref);
+    sid = erts_get_ref_numbers_thr_id(trefn);
+    if (sid < 1 || erts_no_schedulers < sid)
+	goto no_timer;
+
+    if (sid == (Uint32) esdp->no) {
+	res = access_sched_local_btm(c_p, c_p->common.id,
+				     tref, trefn, NULL,
+				     async, cancel, !async,
+				     info);
+	ERTS_BIF_PREP_RET(ret, res);
+    }
+    else if (try_access_sched_remote_btm(esdp, c_p, sid,
+					 tref, trefn,
+					 async, cancel,
+					 info, &res)) {
+	ERTS_BIF_PREP_RET(ret, res);
+    }
+    else {
+	/*
+	 * Schedule access for execution on
+	 * remote scheduler...
+	 */
+	ErtsBifTimerRequest *req = erts_alloc(ERTS_ALC_T_TIMER_REQUEST,
+					      sizeof(ErtsBifTimerRequest));
+
+	req->flags = 0;
+	if (cancel)
+	    req->flags |= ERTS_BTM_REQ_FLG_CANCEL;
+	if (async)
+	    req->flags |= ERTS_BTM_REQ_FLG_ASYNC;
+	if (info)
+	    req->flags |= ERTS_BTM_REQ_FLG_INFO;
+
+	req->pid = c_p->common.id;
+
+	req->trefn[0] = trefn[0];
+	req->trefn[1] = trefn[1];
+	req->trefn[2] = trefn[2];
+
+	if (async)
+	    ERTS_BIF_PREP_RET(ret, am_ok);
+	else {
+	    Eterm *hp, rref;
+	    Uint32 *rrefn;
+
+	    hp = HAlloc(c_p, REF_THING_SIZE);
+	    rref = erts_sched_make_ref_in_buffer(esdp, hp);
+	    rrefn = internal_ref_numbers(rref);
+
+	    req->rrefn[0] = rrefn[0];
+	    req->rrefn[1] = rrefn[1];
+	    req->rrefn[2] = rrefn[2];
+
+	    erts_smp_proc_lock(c_p, ERTS_PROC_LOCKS_MSG_RECEIVE);
+
+	    if (ERTS_PROC_PENDING_EXIT(c_p))
+		ERTS_VBUMP_ALL_REDS(c_p);
+	    else {
+		/*
+		 * Caller needs to wait for a message containing
+		 * the ref that we just created. No such message
+		 * can exist in callers message queue at this time.
+		 * We therefore move the save pointer of the
+		 * callers message queue to the end of the queue.
+		 *
+		 * NOTE: It is of vital importance that the caller
+		 *       immediately do a receive unconditionaly
+		 *       waiting for the message with the reference;
+		 *       otherwise, next receive will *not* work
+		 *       as expected!
+		 */
+		ERTS_SMP_MSGQ_MV_INQ2PRIVQ(c_p);
+		c_p->msg.save = c_p->msg.last;
+	    }
+	    erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_MSG_RECEIVE);
+
+	    ERTS_BIF_PREP_TRAP1(ret, erts_await_result, c_p, rref);
+	}
+
+	erts_schedule_misc_aux_work(sid,
+				    bif_timer_access_request,
+				    (void *) req);
+    }
+
+    return ret;
+
+badarg:
+    ERTS_BIF_PREP_ERROR(ret, c_p, BADARG);
+    return ret;
+
+no_timer:
+    ERTS_BIF_PREP_RET(ret, am_false);
+    return ret;
+    
+}
+
+static ERTS_INLINE int
+bool_arg(Eterm val, int *argp)
+{
+    switch (val) {
+    case am_true: *argp = 1; return 1;
+    case am_false: *argp = 0; return 1;
+    default: return 0;
+    }
+}
+
+static ERTS_INLINE int
+parse_bif_timer_options(Eterm option_list, int *async, int *info,
+			int *abs, Eterm *accessor)
+{
+    Eterm list = option_list;
+
+    if (async)
+	*async = 0;
+    if (info)
+	*info = 1;
+    if (abs)
+	*abs = 0;
+    if (accessor)
+	*accessor = THE_NON_VALUE;
+
+    while (is_list(list)) {
+	Eterm *consp, *tp, opt;
+
+	consp = list_val(list);
+	opt = CAR(consp);
+	if (is_not_tuple(opt))
+	    return 0;
+
+	tp = tuple_val(opt);
+	if (arityval(tp[0]) != 2)
+	    return 0;
+
+	switch (tp[1]) {
+	case am_async:
+	    if (!async || !bool_arg(tp[2], async))
+		return 0;
+	    break;
+	case am_info:
+	    if (!info || !bool_arg(tp[2], info))
+		return 0;
+	    break;
+	case am_abs:
+	    if (!abs || !bool_arg(tp[2], abs))
+		return 0;
+	    break;
+	case am_accessor:
+	    if (!accessor || is_not_internal_pid(tp[2]))
+		return 0;
+	    *accessor = tp[2];
+	    break;
+	default:
+	    return 0;
+	}
+
+	list = CDR(consp);	
+    }
+
+    if (is_not_nil(list))
+	return 0;
+    return 1;
+}
+
+static void
+exit_cancel_bif_timer(ErtsHLTimer *tmr, void *vesdp)
+{
+    ErtsSchedulerData *esdp = (ErtsSchedulerData *) vesdp;
+    Uint32 sid, roflgs;
+    erts_aint_t state;
+
+    state = erts_smp_atomic32_cmpxchg_acqb(&tmr->state,
+					   ERTS_TMR_STATE_CANCELED,
+					   ERTS_TMR_STATE_ACTIVE);
+
+    roflgs = tmr->head.roflgs;
+    sid = roflgs & ERTS_TMR_ROFLG_SID_MASK;
+
+    ERTS_HLT_ASSERT(sid == erts_get_ref_numbers_thr_id(tmr->btm.refn));
+    ERTS_HLT_ASSERT(tmr->btm.proc_tree.parent
+		    != ERTS_HLT_PFIELD_NOT_IN_TABLE);
+
+    tmr->btm.proc_tree.parent = ERTS_HLT_PFIELD_NOT_IN_TABLE;
+
+    if (sid == (Uint32) esdp->no) {
+	if (state == ERTS_TMR_STATE_ACTIVE) {
+	    if (tmr->btm.bp)
+		free_message_buffer(tmr->btm.bp);
+	    hlt_delete_timer(esdp, tmr);
+	}
+	hl_timer_dec_refc(tmr, roflgs);
+    }
+    else {
+	if (state == ERTS_TMR_STATE_ACTIVE) {
+	    if (tmr->btm.bp)
+		free_message_buffer(tmr->btm.bp);
+	    queue_canceled_timer(esdp, sid, (ErtsTimer *) tmr);
+	}
+	else
+	    hl_timer_dec_refc(tmr, roflgs);
+    }
+}
+
+#ifdef ERTS_HLT_DEBUG
+#  define ERTS_BTM_MAX_DESTROY_LIMIT 2
+#else
+#  define ERTS_BTM_MAX_DESTROY_LIMIT 50
+#endif
+
+typedef struct {
+    ErtsBifTimers *bif_timers;
+    union {
+	proc_btm_rbt_yield_state_t proc_btm_yield_state;
+	abtm_rbt_yield_state_t abtm_yield_state;
+    } u;
+} ErtsBifTimerYieldState;
+
+int erts_cancel_bif_timers(Process *p, ErtsBifTimers *btm, void **vyspp)
+{
+    ErtsSchedulerData *esdp = ERTS_PROC_GET_SCHDATA(p);
+    ErtsBifTimerYieldState ys = {btm, {ERTS_RBT_YIELD_STAT_INITER}};
+    ErtsBifTimerYieldState *ysp;
+    int res;
+
+    ysp = (ErtsBifTimerYieldState *) *vyspp;
+    if (!ysp)
+	ysp = &ys;
+
+    res = proc_btm_rbt_foreach_destroy_yielding(&ysp->bif_timers,
+						exit_cancel_bif_timer,
+						(void *) esdp,
+						&ysp->u.proc_btm_yield_state,
+						ERTS_BTM_MAX_DESTROY_LIMIT);
+
+    if (res == 0) {
+	if (ysp != &ys)
+	    erts_free(ERTS_ALC_T_BTM_YIELD_STATE, ysp);
+	*vyspp = NULL;
+    }
+    else {
+
+	if (ysp == &ys) {
+	    ysp = erts_alloc(ERTS_ALC_T_BTM_YIELD_STATE,
+			     sizeof(ErtsBifTimerYieldState));
+	    sys_memcpy((void *) ysp, (void *) &ys,
+		       sizeof(ErtsBifTimerYieldState));
+	}
+
+	*vyspp = (void *) ysp;
+    }
+
+    return res;
+}
+
+static void
+detach_bif_timer(ErtsHLTimer *tmr, void *vesdp)
+{
+    tmr->abtm.tree.parent = ERTS_HLT_PFIELD_NOT_IN_TABLE;
+    hl_timer_dec_refc(tmr, tmr->head.roflgs);
+}
+
+int erts_detach_accessor_bif_timers(Process *p, ErtsBifTimers *btm, void **vyspp)
+{
+    ErtsSchedulerData *esdp = ERTS_PROC_GET_SCHDATA(p);
+    ErtsBifTimerYieldState ys = {btm, {ERTS_RBT_YIELD_STAT_INITER}};
+    ErtsBifTimerYieldState *ysp;
+    int res;
+
+    ysp = (ErtsBifTimerYieldState *) *vyspp;
+    if (!ysp)
+	ysp = &ys;
+
+    res = abtm_rbt_foreach_destroy_yielding(&ysp->bif_timers,
+					    detach_bif_timer,
+					    (void *) esdp,
+					    &ysp->u.abtm_yield_state,
+					    ERTS_BTM_MAX_DESTROY_LIMIT);
+
+    if (res == 0) {
+	if (ysp != &ys)
+	    erts_free(ERTS_ALC_T_BTM_YIELD_STATE, ysp);
+	*vyspp = NULL;
+    }
+    else {
+
+	if (ysp == &ys) {
+	    ysp = erts_alloc(ERTS_ALC_T_BTM_YIELD_STATE,
+			     sizeof(ErtsBifTimerYieldState));
+	    sys_memcpy((void *) ysp, (void *) &ys,
+		       sizeof(ErtsBifTimerYieldState));
+	}
+
+	*vyspp = (void *) ysp;
+    }
+
+    return res;
+}
+
+static ERTS_INLINE int
+parse_timeout_pos(ErtsSchedulerData *esdp, Eterm arg,
+		  ErtsMonotonicTime *conv_arg, int abs,
+		  ErtsMonotonicTime *tposp, int *stimep)
+{
+    ErtsMonotonicTime t;
+
+    if (!term_to_Sint64(arg, &t)) {
+	ERTS_HLT_ASSERT(!is_small(arg));
+	if (!is_big(arg))
+	    return -1;
+
+	if (abs || !big_sign(arg))
+	    return 1;
+
+	return -1;
+    }
+
+    if (conv_arg)
+	*conv_arg = t;
+
+    if (abs) {
+	t += -1*ERTS_MONOTONIC_OFFSET_MSEC; /* external to internal */
+	if (t < ERTS_MONOTONIC_TO_MSEC(ERTS_MONOTONIC_BEGIN))
+	    return 1;
+	if (t > ERTS_MONOTONIC_TO_MSEC(ERTS_MONOTONIC_END))
+	    return 1;
+	*stimep = (t - ERTS_MONOTONIC_TO_MSEC(esdp->last_monotonic_time)
+		   < ERTS_BIF_TIMER_SHORT_TIME);
+	*tposp = ERTS_MSEC_TO_CLKTCKS(t);
+    }
+    else {
+	ErtsMonotonicTime now, ticks;
+	
+	if (t < 0)
+	    return -1;
+
+	ticks = ERTS_MSEC_TO_CLKTCKS(t);
+
+	if (ERTS_CLKTCK_RESOLUTION > 1000 && ticks < 0)
+	    return 1;
+
+	ERTS_HLT_ASSERT(ticks >= 0);
+
+	now = erts_get_monotonic_time(esdp);
+	ticks += ERTS_MONOTONIC_TO_CLKTCKS(now-1);
+	ticks += 1;
+
+	if (ticks < ERTS_MONOTONIC_TO_CLKTCKS(ERTS_MONOTONIC_BEGIN))
+	    return 1;
+	if (ticks > ERTS_MONOTONIC_TO_CLKTCKS(ERTS_MONOTONIC_END))
+	    return 1;
+
+	*stimep = (t < ERTS_BIF_TIMER_SHORT_TIME);
+	*tposp = ticks;
+    }
+
+    return 0;
+}
+
+/*
+ *
+ * The BIF timer BIFs...
+ */
+
+BIF_RETTYPE send_after_3(BIF_ALIST_3)
+{
+    ErtsMonotonicTime timeout_pos;
+    int short_time, tres;
+
+    tres = parse_timeout_pos(ERTS_PROC_GET_SCHDATA(BIF_P), BIF_ARG_1, NULL,
+			     0, &timeout_pos, &short_time);
+    if (tres != 0)
+	BIF_ERROR(BIF_P, BADARG);
+
+    return setup_bif_timer(BIF_P, timeout_pos, short_time,
+			   BIF_ARG_2, BIF_ARG_2, BIF_ARG_3, 0);
+}
+
+BIF_RETTYPE send_after_4(BIF_ALIST_4)
+{
+    ErtsMonotonicTime timeout_pos;
+    Eterm accessor;
+    int short_time, abs, tres;
+
+    if (!parse_bif_timer_options(BIF_ARG_4, NULL, NULL, &abs, &accessor))
+	BIF_ERROR(BIF_P, BADARG);
+    
+    tres = parse_timeout_pos(ERTS_PROC_GET_SCHDATA(BIF_P), BIF_ARG_1, NULL,
+			     abs, &timeout_pos, &short_time);
+    if (tres != 0)
+	BIF_ERROR(BIF_P, BADARG);
+
+    return setup_bif_timer(BIF_P, timeout_pos, short_time,
+			   BIF_ARG_2, accessor, BIF_ARG_3, 0);
+}
+
+BIF_RETTYPE start_timer_3(BIF_ALIST_3)
+{
+    ErtsMonotonicTime timeout_pos;
+    int short_time, tres;
+
+    tres = parse_timeout_pos(ERTS_PROC_GET_SCHDATA(BIF_P), BIF_ARG_1, NULL,
+			     0, &timeout_pos, &short_time);
+    if (tres != 0)
+	BIF_ERROR(BIF_P, BADARG);
+
+    return setup_bif_timer(BIF_P, timeout_pos, short_time,
+			   BIF_ARG_2, BIF_ARG_2, BIF_ARG_3, !0);
+}
+
+BIF_RETTYPE start_timer_4(BIF_ALIST_4)
+{
+    ErtsMonotonicTime timeout_pos;
+    Eterm accessor;
+    int short_time, abs, tres;
+
+    if (!parse_bif_timer_options(BIF_ARG_4, NULL, NULL, &abs, &accessor))
+	BIF_ERROR(BIF_P, BADARG);
+
+    tres = parse_timeout_pos(ERTS_PROC_GET_SCHDATA(BIF_P), BIF_ARG_1, NULL,
+			     abs, &timeout_pos, &short_time);
+    if (tres != 0)
+	BIF_ERROR(BIF_P, BADARG);
+
+    return setup_bif_timer(BIF_P, timeout_pos, short_time,
+			   BIF_ARG_2, accessor, BIF_ARG_3, !0);
+}
+
+BIF_RETTYPE cancel_timer_1(BIF_ALIST_1)
+{
+    return access_bif_timer(BIF_P, BIF_ARG_1, 1, 0, 1);
+}
+
+BIF_RETTYPE cancel_timer_2(BIF_ALIST_2)
+{
+    BIF_RETTYPE ret;
+    int async, info;
+
+    if (parse_bif_timer_options(BIF_ARG_2, &async, &info, NULL, NULL))
+	return access_bif_timer(BIF_P, BIF_ARG_1, 1, async, info);
+
+    ERTS_BIF_PREP_ERROR(ret, BIF_P, BADARG);
+    return ret;
+}
+
+BIF_RETTYPE read_timer_1(BIF_ALIST_1)
+{
+    return access_bif_timer(BIF_P, BIF_ARG_1, 0, 0, 1);
+}
+
+BIF_RETTYPE read_timer_2(BIF_ALIST_2)
+{
+    BIF_RETTYPE ret;
+    int async;
+
+    if (parse_bif_timer_options(BIF_ARG_2, &async, NULL, NULL, NULL))
+	return access_bif_timer(BIF_P, BIF_ARG_1, 0, async, 1);
+
+    ERTS_BIF_PREP_ERROR(ret, BIF_P, BADARG);
+    return ret;
+}
+
+/*
+ * Process and Port timer functionality.
+ *
+ * NOTE! These are only allowed to be called by a
+ *       scheduler thread that currently is
+ *       executing the process or port.
+ */
+
+static ERTS_INLINE void
+set_proc_timer_common(Process *c_p, ErtsSchedulerData *esdp, Sint64 tmo,
+		      ErtsMonotonicTime timeout_pos, int short_time)
+{
+    void *tmr;
+    check_canceled_queue(esdp, esdp->timer_service);
+
+    if (tmo == 0)
+	c_p->flags |= F_TIMO;
+    else {
+
+	c_p->flags |= F_INSLPQUEUE;
+	c_p->flags &= ~F_TIMO;
+
+	if (tmo < ERTS_TIMER_WHEEL_MSEC)
+	    tmr = (void *) create_tw_timer(esdp, (void *) c_p, 1, timeout_pos);
+	else
+	    tmr = (void *) create_hl_timer(esdp, timeout_pos,
+					   short_time, 0, (void *) c_p,
+					   c_p->common.id, NIL, NIL, NULL);
+	erts_smp_atomic_set_relb(&c_p->common.timer, (erts_aint_t) tmr);
+    }
+}
+
+int
+erts_set_proc_timer_term(Process *c_p, Eterm etmo)
+{
+    ErtsSchedulerData *esdp = ERTS_PROC_GET_SCHDATA(c_p);
+    ErtsMonotonicTime tmo, timeout_pos;
+    int short_time, tres;
+
+    ERTS_HLT_ASSERT(erts_smp_atomic_read_nob(&c_p->common.timer)
+		    == ERTS_PTMR_NONE);
+
+    tres = parse_timeout_pos(esdp, etmo, &tmo, 0,
+			     &timeout_pos, &short_time);
+    if (tres != 0)
+	return tres;
+
+    if ((tmo >> 32) != 0)
+	return 1;
+
+    set_proc_timer_common(c_p, esdp, tmo, timeout_pos, short_time);
+    return 0;
+}
+
+void
+erts_set_proc_timer_uword(Process *c_p, UWord tmo)
+{
+    ErtsSchedulerData *esdp = ERTS_PROC_GET_SCHDATA(c_p);
+
+    ERTS_HLT_ASSERT(erts_smp_atomic_read_nob(&c_p->common.timer)
+		    == ERTS_PTMR_NONE);
+
+#ifndef ARCH_32
+    ERTS_HLT_ASSERT((tmo >> 32) == (UWord) 0);
+#endif
+
+    if (tmo == 0)
+	c_p->flags |= F_TIMO;
+    else {
+	ErtsMonotonicTime timeout_pos;
+	timeout_pos = get_timeout_pos(erts_get_monotonic_time(esdp),
+				      (ErtsMonotonicTime) tmo);
+	set_proc_timer_common(c_p, esdp, (ErtsMonotonicTime) tmo,
+			      timeout_pos,
+			      tmo < ERTS_BIF_TIMER_SHORT_TIME);
+    }
+}
+
+void
+erts_cancel_proc_timer(Process *c_p)
+{
+    erts_aint_t tval;
+    tval = erts_smp_atomic_xchg_acqb(&c_p->common.timer,
+				     ERTS_PTMR_NONE);
+    c_p->flags &= ~(F_INSLPQUEUE|F_TIMO);
+    if (tval == ERTS_PTMR_NONE)
+	return;
+    if (tval == ERTS_PTMR_TIMEDOUT) {
+	erts_smp_atomic_set_nob(&c_p->common.timer, ERTS_PTMR_NONE);
+	return;
+    }
+    continue_cancel_ptimer(ERTS_PROC_GET_SCHDATA(c_p),
+			   (ErtsTimer *) tval);
+}
+
+void
+erts_set_port_timer(Port *c_prt, Sint64 tmo)
+{
+    void *tmr;
+    ErtsSchedulerData *esdp = erts_get_scheduler_data();
+    ErtsMonotonicTime timeout_pos;
+
+    if (erts_smp_atomic_read_nob(&c_prt->common.timer) != ERTS_PTMR_NONE)
+	erts_cancel_port_timer(c_prt);
+
+    check_canceled_queue(esdp, esdp->timer_service);
+
+    timeout_pos = get_timeout_pos(erts_get_monotonic_time(esdp), tmo);
+
+    if (tmo < ERTS_TIMER_WHEEL_MSEC)
+	tmr = (void *) create_tw_timer(esdp, (void *) c_prt, 0,
+				       timeout_pos);
+    else
+	tmr = (void *) create_hl_timer(esdp, timeout_pos, 0, 0,
+				       (void *) c_prt,
+				       c_prt->common.id, NIL, NIL,
+				       NULL);
+    erts_smp_atomic_set_relb(&c_prt->common.timer, (erts_aint_t) tmr);
+}
+
+void
+erts_cancel_port_timer(Port *c_prt)
+{
+    erts_aint_t tval;
+    tval = erts_smp_atomic_xchg_acqb(&c_prt->common.timer,
+				     ERTS_PTMR_NONE);
+    if (tval == ERTS_PTMR_NONE)
+	return;
+    if (tval == ERTS_PTMR_TIMEDOUT) {
+	while (!erts_port_task_is_scheduled(&c_prt->timeout_task))
+	    erts_thr_yield();
+	erts_port_task_abort(&c_prt->timeout_task);
+	erts_smp_atomic_set_nob(&c_prt->common.timer, ERTS_PTMR_NONE);
+	return;
+    }
+    continue_cancel_ptimer(erts_get_scheduler_data(),
+			   (ErtsTimer *) tval);
+}
+
+Sint64
+erts_read_port_timer(Port *c_prt)
+{
+    ErtsTimer *tmr;
+    erts_aint_t itmr;
+    ErtsMonotonicTime timeout_pos;
+
+    itmr = erts_smp_atomic_read_acqb(&c_prt->common.timer);
+    if (itmr == ERTS_PTMR_NONE)
+	return (Sint64) -1;
+    if (itmr == ERTS_PTMR_TIMEDOUT)
+	return (Sint64) 0;
+    tmr = (ErtsTimer *) itmr;
+    if (tmr->head.roflgs & ERTS_TMR_ROFLG_HLT)
+	timeout_pos = tmr->hlt.timeout;
+    else
+	timeout_pos = tmr->twt.tw_tmr.timeout_pos;
+    return get_time_left(NULL, timeout_pos);
+}
+
+/*
+ * Debug stuff...
+ */
+
+typedef struct {
+    int to;
+    void *to_arg;
+    ErtsMonotonicTime now;
+} ErtsBTMPrint;
+
+static void
+btm_print(ErtsHLTimer *tmr, void *vbtmp)
+{
+    ErtsBTMPrint *btmp = (ErtsBTMPrint *) vbtmp;
+    ErtsMonotonicTime left;
+    Eterm receiver;
+
+    if (tmr->timeout <= btmp->now)
+	left = 0;
+    left = ERTS_CLKTCKS_TO_MSEC(tmr->timeout - btmp->now);
+
+    receiver = ((tmr->head.roflgs & ERTS_TMR_ROFLG_REG_NAME)
+		? tmr->receiver.name
+		: tmr->receiver.proc->common.id);
+
+    erts_print(btmp->to, btmp->to_arg,
+	       "=timer:%T\n"
+	       "Message: %T\n"
+	       "Time left: %b64d\n",
+	       receiver,
+	       tmr->btm.message,
+	       (Sint64) left);
+}
+
+void
+erts_print_bif_timer_info(int to, void *to_arg)
+{
+    ErtsBTMPrint btmp;
+    int six;
+
+    if (!ERTS_IS_CRASH_DUMPING)
+	ERTS_INTERNAL_ERROR("Not crash dumping");
+
+    btmp.to = to;
+    btmp.to_arg = to_arg;
+    btmp.now = erts_get_monotonic_time(NULL);
+    btmp.now = ERTS_MONOTONIC_TO_CLKTCKS(btmp.now);
+
+    for (six = 0; six < erts_no_schedulers; six++) {
+	ErtsHLTimerService *srv =
+	    erts_aligned_scheduler_data[six].esd.timer_service;
+	btm_rbt_foreach(srv->btm_tree, btm_print, (void *) &btmp);
+    }
+}
+
+typedef struct {
+    void (*func)(Eterm,
+		 Eterm,
+		 ErlHeapFragment *,
+		 void *);
+    void *arg;
+} ErtsBTMForeachDebug;
+
+static void
+debug_btm_foreach(ErtsHLTimer *tmr, void *vbtmfd)
+{
+    if (erts_smp_atomic32_read_nob(&tmr->state) == ERTS_TMR_STATE_ACTIVE) {
+	ErtsBTMForeachDebug *btmfd = (ErtsBTMForeachDebug *) vbtmfd;
+	(*btmfd->func)(((tmr->head.roflgs & ERTS_TMR_ROFLG_REG_NAME)
+			? tmr->receiver.name
+			: tmr->receiver.proc->common.id),
+		       tmr->btm.message,
+		       tmr->btm.bp,
+		       btmfd->arg);
+    }
+}
+
+void
+erts_debug_bif_timer_foreach(void (*func)(Eterm,
+					  Eterm,
+					  ErlHeapFragment *,
+					  void *),
+			     void *arg)
+{
+    ErtsBTMForeachDebug btmfd;
+    int six;
+
+    btmfd.func = func;
+    btmfd.arg = arg;
+
+    if (!erts_smp_thr_progress_is_blocking())
+	ERTS_INTERNAL_ERROR("Not blocking thread progress");
+
+    for (six = 0; six < erts_no_schedulers; six++) {
+	ErtsHLTimerService *srv =
+	    erts_aligned_scheduler_data[six].esd.timer_service;
+	btm_rbt_foreach(srv->btm_tree,
+			debug_btm_foreach,
+			(void *) &btmfd);
+    }
+}
+
+#ifdef ERTS_HLT_HARD_DEBUG
+
+typedef struct {
+    ErtsHLTimerService *srv;
+    int found_root;
+    ErtsHLTimer **rootpp;
+} ErtsHdbgHLT;
+
+static void
+st_hdbg_func(ErtsHLTimer *tmr, void *vhdbg)
+{
+    ErtsHdbgHLT *hdbg = (ErtsHdbgHLT *) vhdbg;
+    ErtsHLTimer **rootpp;
+    ERTS_HLT_ASSERT(tmr->time.tree.parent & ERTS_HLT_PFLG_SAME_TIME);
+    if (tmr->time.tree.parent == ERTS_HLT_PFLG_SAME_TIME) {
+	ERTS_HLT_ASSERT(tmr != *hdbg->rootpp);
+    }
+    else {
+	rootpp = (ErtsHLTimer **) (tmr->time.tree.parent
+				   & ~ERTS_HLT_PFLG_SAME_TIME);
+	ERTS_HLT_ASSERT(rootpp == hdbg->rootpp);
+	ERTS_HLT_ASSERT(tmr == *rootpp);
+	ERTS_HLT_ASSERT(!hdbg->found_root);
+	hdbg->found_root = 1;
+    }
+    ERTS_HLT_ASSERT(tmr->time.tree.u.l.next->time.tree.u.l.prev == tmr);
+    ERTS_HLT_ASSERT(tmr->time.tree.u.l.prev->time.tree.u.l.next == tmr);
+    ERTS_HLT_ASSERT(btm_rbt_lookup(hdbg->srv->btm_tree, tmr->btm.refn) == tmr);
+}
+
+static void
+tt_hdbg_func(ErtsHLTimer *tmr, void *vhdbg)
+{
+    ErtsHdbgHLT *hdbg = (ErtsHdbgHLT *) vhdbg;
+    ErtsHLTimer *prnt;
+    ERTS_HLT_ASSERT((tmr->time.tree.parent & ERTS_HLT_PFLG_SAME_TIME) == 0);
+    prnt = (ErtsHLTimer *) (tmr->time.tree.parent & ~ERTS_HLT_PFLGS_MASK);
+    if (prnt) {
+	ERTS_HLT_ASSERT(prnt->time.tree.u.t.left == tmr
+			|| prnt->time.tree.u.t.right == tmr);
+    }
+    else {
+	ERTS_HLT_ASSERT(!hdbg->found_root);
+	hdbg->found_root = 1;
+	ERTS_HLT_ASSERT(tmr == *hdbg->rootpp);
+    }
+    if (tmr->time.tree.u.t.left) {
+	prnt = (ErtsHLTimer *) (tmr->time.tree.u.t.left->time.tree.parent
+				& ~ERTS_HLT_PFLGS_MASK);
+	ERTS_HLT_ASSERT(tmr == prnt);
+    }
+    if (tmr->time.tree.u.t.right) {
+	prnt = (ErtsHLTimer *) (tmr->time.tree.u.t.right->time.tree.parent
+				& ~ERTS_HLT_PFLGS_MASK);
+	ERTS_HLT_ASSERT(tmr == prnt);
+    }
+    ERTS_HLT_ASSERT(btm_rbt_lookup(hdbg->srv->btm_tree, tmr->btm.refn) == tmr);
+    if (tmr->time.tree.same_time) {
+	ErtsHdbgHLT st_hdbg;
+	st_hdbg.srv = hdbg->srv;
+	st_hdbg.found_root = 0;
+	st_hdbg.rootpp = &tmr->time.tree.same_time;
+	same_time_list_foreach(tmr->time.tree.same_time, st_hdbg_func, (void *) &st_hdbg);
+	ERTS_HLT_ASSERT(st_hdbg.found_root);
+    }
+}
+
+static void
+bt_hdbg_func(ErtsHLTimer *tmr, void *vhdbg)
+{
+    ErtsHdbgHLT *hdbg = (ErtsHdbgHLT *) vhdbg;
+    ErtsHLTimer *prnt;
+    ERTS_HLT_ASSERT((tmr->btm.tree.parent & ERTS_HLT_PFLG_SAME_TIME) == 0);
+    prnt = (ErtsHLTimer *) (tmr->btm.tree.parent & ~ERTS_HLT_PFLGS_MASK);
+    if (prnt) {
+	ERTS_HLT_ASSERT(prnt->btm.tree.left == tmr
+			|| prnt->btm.tree.right == tmr);
+    }
+    else {
+	ERTS_HLT_ASSERT(!hdbg->found_root);
+	hdbg->found_root = 1;
+	ERTS_HLT_ASSERT(tmr == *hdbg->rootpp);
+    }
+    if (tmr->btm.tree.left) {
+	prnt = (ErtsHLTimer *) (tmr->btm.tree.left->btm.tree.parent
+				& ~ERTS_HLT_PFLGS_MASK);
+	ERTS_HLT_ASSERT(tmr == prnt);
+    }
+    if (tmr->btm.tree.right) {
+	prnt = (ErtsHLTimer *) (tmr->btm.tree.right->btm.tree.parent
+				& ~ERTS_HLT_PFLGS_MASK);
+	ERTS_HLT_ASSERT(tmr == prnt);
+    }
+    if (tmr->pending_timeout) {
+	if (tmr->pending_timeout > 0) /* container > 0 */
+	    ERTS_HLT_ASSERT(tmr->time.tree.parent == ERTS_HLT_PFIELD_NOT_IN_TABLE);
+	else {
+	    ERTS_HLT_ASSERT(tmr->time.tree.parent != ERTS_HLT_PFIELD_NOT_IN_TABLE);
+	    ERTS_HLT_ASSERT(tmr->time.tree.parent & ERTS_HLT_PFLG_SAME_TIME);
+	}
+    }
+    else {
+	ErtsHLTimer *ttmr = time_rbt_lookup(hdbg->srv->time_tree, tmr->timeout);
+	ERTS_HLT_ASSERT(ttmr);
+	if (ttmr != tmr) {
+	    ERTS_HLT_ASSERT(ttmr->time.tree.same_time);
+	    ERTS_HLT_ASSERT(tmr == same_time_list_lookup(ttmr->time.tree.same_time, tmr));
+	}
+    }
+}
+
+static void
+hdbg_chk_srv(ErtsHLTimerService *srv)
+{
+    if (srv->time_tree) {
+	ErtsHdbgHLT hdbg;
+	hdbg.srv = srv;
+	hdbg.found_root = 0;
+	hdbg.rootpp = &srv->time_tree;
+	time_rbt_foreach(srv->time_tree, tt_hdbg_func, (void *) &hdbg);
+	ERTS_HLT_ASSERT(hdbg.found_root);
+    }
+    if (srv->btm_tree) {
+	ErtsHdbgHLT hdbg;
+	hdbg.srv = srv;
+	hdbg.found_root = 0;
+	hdbg.rootpp = &srv->btm_tree;
+	btm_rbt_foreach(srv->btm_tree, bt_hdbg_func, (void *) &hdbg);
+	ERTS_HLT_ASSERT(hdbg.found_root);
+    }
+}
+
+#endif /* ERTS_HLT_HARD_DEBUG */
diff --git a/erts/emulator/beam/erl_hl_timer.h b/erts/emulator/beam/erl_hl_timer.h
new file mode 100644
index 0000000000..30889a71da
--- /dev/null
+++ b/erts/emulator/beam/erl_hl_timer.h
@@ -0,0 +1,80 @@
+/*
+ * %CopyrightBegin%
+ * 
+ * Copyright Ericsson AB 2015. All Rights Reserved.
+ * 
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ * 
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * %CopyrightEnd%
+ */
+
+#ifndef ERL_HL_TIMER_H__
+#define ERL_HL_TIMER_H__
+
+typedef struct ErtsHLTimer_ ErtsBifTimers;
+typedef struct ErtsHLTimerService_ ErtsHLTimerService;
+
+#include "sys.h"
+#include "erl_process.h"
+#define ERL_PORT_GET_PORT_TYPE_ONLY__
+#include "erl_port.h"
+#undef ERL_PORT_GET_PORT_TYPE_ONLY__
+#include "erl_message.h"
+#include "erl_alloc_types.h"
+
+#define ERTS_PTMR_NONE ((erts_aint_t) NULL)
+#define ERTS_PTMR_TIMEDOUT (ERTS_PTMR_NONE + ((erts_aint_t) 1))
+
+#define ERTS_PTMR_INIT(P) \
+    erts_smp_atomic_init_nob(&(P)->common.timer, ERTS_PTMR_NONE)
+#define ERTS_PTMR_IS_SET(P) \
+    (ERTS_PTMR_NONE != erts_smp_atomic_read_nob(&(P)->common.timer))
+#define ERTS_PTMR_IS_TIMED_OUT(P) \
+    (ERTS_PTMR_TIMEDOUT == erts_smp_atomic_read_nob(&(P)->common.timer))
+
+#define ERTS_PTMR_CLEAR(P)					\
+    do {							\
+	ASSERT(ERTS_PTMR_IS_TIMED_OUT((P)));			\
+	erts_smp_atomic_set_nob(&(P)->common.timer,		\
+				ERTS_PTMR_NONE);		\
+    } while (0)
+
+size_t erts_timer_type_size(ErtsAlcType_t type);
+int erts_set_proc_timer_term(Process *, Eterm);
+void erts_set_proc_timer_uword(Process *, UWord);
+void erts_cancel_proc_timer(Process *);
+void erts_set_port_timer(Port *, Sint64);
+void erts_cancel_port_timer(Port *);
+Sint64 erts_read_port_timer(Port *);
+int erts_cancel_bif_timers(Process *, ErtsBifTimers *, void **);
+int erts_detach_accessor_bif_timers(Process *, ErtsBifTimers *, void **);
+ErtsHLTimerService *erts_create_timer_service(void);
+void erts_hl_timer_init(void);
+
+#ifdef ERTS_SMP
+void
+erts_handle_canceled_timers(void *vesdp,
+			    int *need_thr_progress,
+			    ErtsThrPrgrVal *thr_prgr_p,
+			    int *need_more_work);
+#endif
+
+Uint erts_bif_timer_memory_size(void);
+void erts_print_bif_timer_info(int to, void *to_arg);
+
+void erts_debug_bif_timer_foreach(void (*func)(Eterm,
+					       Eterm,
+					       ErlHeapFragment *,
+					       void *),
+				  void *arg);
+
+#endif /* ERL_HL_TIMER_H__ */
diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c
index 743fd235bc..33417833a9 100644
--- a/erts/emulator/beam/erl_init.c
+++ b/erts/emulator/beam/erl_init.c
@@ -35,7 +35,7 @@
 #include "dist.h"
 #include "erl_mseg.h"
 #include "erl_threads.h"
-#include "erl_bif_timer.h"
+#include "erl_hl_timer.h"
 #include "erl_instrument.h"
 #include "erl_printf_term.h"
 #include "erl_misc_utils.h"
@@ -45,6 +45,9 @@
 #include "erl_thr_queue.h"
 #include "erl_async.h"
 #include "erl_ptab.h"
+#include "erl_bif_unique.h"
+#define ERTS_WANT_TIMER_WHEEL_API
+#include "erl_time.h"
 
 #ifdef HIPE
 #include "hipe_mode_switch.h"	/* for hipe_mode_switch_init() */
@@ -117,6 +120,8 @@ const int etp_big_endian = 1;
 #else
 const int etp_big_endian = 0;
 #endif
+const Eterm etp_the_non_value = THE_NON_VALUE;
+
 /*
  * Note about VxWorks: All variables must be initialized by executable code,
  * not by an initializer. Otherwise a new instance of the emulator will
@@ -134,7 +139,9 @@ static void erl_init(int ncpu,
 		     int legacy_proc_tab,
 		     int port_tab_sz,
 		     int port_tab_sz_ignore_files,
-		     int legacy_port_tab);
+		     int legacy_port_tab,
+		     int time_correction,
+		     ErtsTimeWarpMode time_warp_mode);
 
 static erts_atomic_t exiting;
 
@@ -161,9 +168,6 @@ int H_MIN_SIZE;			/* The minimum heap grain */
 int BIN_VH_MIN_SIZE;		/* The minimum binary virtual*/
 
 Uint32 erts_debug_flags;	/* Debug flags. */
-#ifdef ERTS_OPCODE_COUNTER_SUPPORT
-int count_instructions;
-#endif
 int erts_backtrace_depth;	/* How many functions to show in a backtrace
 				 * in error codes.
 				 */
@@ -188,10 +192,6 @@ static int no_dirty_io_schedulers;
 Uint32 verbose;             /* See erl_debug.h for information about verbose */
 #endif
 
-int erts_disable_tolerant_timeofday; /* Time correction can be disabled it is
-				      * not and/or it is too slow.
-				      */
-
 int erts_atom_table_size = ATOM_LIMIT;	/* Maximum number of atoms */
 
 int erts_pd_initial_size = 10;
@@ -271,6 +271,19 @@ this_rel_num(void)
     return this_rel;
 }
 
+static ERTS_INLINE void
+set_default_time_adj(int *time_correction_p, ErtsTimeWarpMode *time_warp_mode_p)
+{
+    *time_correction_p = 1;
+    *time_warp_mode_p = ERTS_NO_TIME_WARP_MODE;
+    if (!erts_check_time_adj_support(*time_correction_p,
+				     *time_warp_mode_p)) {
+	*time_correction_p = 0;
+	ASSERT(erts_check_time_adj_support(*time_correction_p,
+					   *time_warp_mode_p));
+    }
+}
+
 /*
  * Common error printout function, all error messages
  * that don't go to the error logger go through here.
@@ -286,13 +299,22 @@ static int early_init(int *argc, char **argv);
 void
 erts_short_init(void)
 {
-    int ncpu = early_init(NULL, NULL);
+    
+    int ncpu;
+    int time_correction;
+    ErtsTimeWarpMode time_warp_mode;
+
+    set_default_time_adj(&time_correction,
+			 &time_warp_mode);
+    ncpu = early_init(NULL, NULL);
     erl_init(ncpu,
 	     ERTS_DEFAULT_MAX_PROCESSES,
 	     0,
 	     ERTS_DEFAULT_MAX_PORTS,
 	     0,
-	     0);
+	     0,
+	     time_correction,
+	     time_warp_mode);
     erts_initialized = 1;
 }
 
@@ -302,12 +324,15 @@ erl_init(int ncpu,
 	 int legacy_proc_tab,
 	 int port_tab_sz,
 	 int port_tab_sz_ignore_files,
-	 int legacy_port_tab)
+	 int legacy_port_tab,
+	 int time_correction,
+	 ErtsTimeWarpMode time_warp_mode)
 {
     init_benchmarking();
 
+    erts_bif_unique_init();
     erts_init_monitors();
-    erts_init_time();
+    erts_init_time(time_correction, time_warp_mode);
     erts_init_sys_common_misc();
     erts_init_process(ncpu, proc_tab_sz, legacy_proc_tab);
     erts_init_scheduling(no_schedulers,
@@ -318,6 +343,7 @@ erl_init(int ncpu,
 			 no_dirty_io_schedulers
 #endif
 			 );
+    erts_late_init_time_sup();
     erts_init_cpu_topology(); /* Must be after init_scheduling */
     erts_init_gc(); /* Must be after init_scheduling */
     erts_alloc_late_init();
@@ -341,7 +367,6 @@ erl_init(int ncpu,
     erts_init_binary(); /* Must be after init_emulator() */
     erts_bp_init();
     init_db(); /* Must be after init_emulator */
-    erts_bif_timer_init();
     erts_init_node_tables();
     init_dist();
     erl_drv_thr_init();
@@ -367,12 +392,13 @@ erl_init(int ncpu,
     erl_nif_init();
 }
 
-static void
+static Eterm
 erl_first_process_otp(char* modname, void* code, unsigned size, int argc, char** argv)
 {
     int i;
     Eterm start_mod;
     Eterm args;
+    Eterm res;
     Eterm* hp;
     Process parent;
     ErlSpawnOpts so;
@@ -402,10 +428,11 @@ erl_first_process_otp(char* modname, void* code, unsigned size, int argc, char**
     hp += 2;
     args = CONS(hp, env, args);
 
-    so.flags = 0;
-    (void) erl_create_process(&parent, start_mod, am_start, args, &so);
+    so.flags = SPO_SYSTEM_PROC;
+    res = erl_create_process(&parent, start_mod, am_start, args, &so);
     erts_smp_proc_unlock(&parent, ERTS_PROC_LOCK_MAIN);
     erts_cleanup_empty_process(&parent);
+    return res;
 }
 
 Eterm
@@ -511,9 +538,9 @@ void erts_usage(void)
 
     /*    erts_fprintf(stderr, "-b func    set the boot function (default boot)\n"); */
 
-    erts_fprintf(stderr, "-c             disable continuous date/time correction with\n");
-    erts_fprintf(stderr, "               respect to uptime\n");
-
+    erts_fprintf(stderr, "-c bool        enable or disable time correction\n");
+    erts_fprintf(stderr, "-C mode        set time warp mode; valid modes are:\n");
+    erts_fprintf(stderr, "               no_time_warp|single_time_warp|multi_time_warp\n");
     erts_fprintf(stderr, "-d             don't write a crash dump for internally detected errors\n");
     erts_fprintf(stderr, "               (halt(String) will still produce a crash dump)\n");
     erts_fprintf(stderr, "-fn[u|a|l]     Control how filenames are interpreted\n");
@@ -598,7 +625,7 @@ void erts_usage(void)
 
     erts_fprintf(stderr, "-v             turn on chatty mode (GCs will be reported etc)\n");
 
-    erts_fprintf(stderr, "-W<i|w>        set error logger warnings mapping,\n");
+    erts_fprintf(stderr, "-W<i|w|e>      set error logger warnings mapping,\n");
     erts_fprintf(stderr, "               see error_logger documentation for details\n");
     erts_fprintf(stderr, "-zdbbl size    set the distribution buffer busy limit in kilobytes\n");
     erts_fprintf(stderr, "               valid range is [1-%d]\n", INT_MAX/1024);
@@ -685,7 +712,6 @@ early_init(int *argc, char **argv) /*
 
     erts_sched_compact_load = 1;
     erts_printf_eterm_func = erts_printf_term;
-    erts_disable_tolerant_timeofday = 0;
     display_items = 200;
     erts_backtrace_depth = DEFAULT_BACKTRACE_SIZE;
     erts_async_max_threads = ERTS_DEFAULT_NO_ASYNC_THREADS;
@@ -1191,7 +1217,11 @@ erl_start(int argc, char **argv)
     int port_tab_sz_ignore_files = 0;
     int legacy_proc_tab = 0;
     int legacy_port_tab = 0;
+    int time_correction;
+    ErtsTimeWarpMode time_warp_mode;
 
+    set_default_time_adj(&time_correction,
+			 &time_warp_mode);
 
     envbufsz = sizeof(envbuf);
     if (erts_sys_getenv_raw(ERL_MAX_ETS_TABLES_ENV, envbuf, &envbufsz) == 0)
@@ -1223,7 +1253,7 @@ erl_start(int argc, char **argv)
     verbose = DEBUG_DEFAULT;
 #endif
 
-    erts_error_logger_warnings = am_error;
+    erts_error_logger_warnings = am_warning;
 
     while (i < argc) {
 	if (argv[i][0] != '-') {
@@ -1909,15 +1939,51 @@ erl_start(int argc, char **argv)
 	    }
 	    break;
 	}
+	case 'C':
+	    arg = get_arg(argv[i]+2, argv[i+1], &i);
+	    if (sys_strcmp(arg, "no_time_warp") == 0)
+		time_warp_mode = ERTS_NO_TIME_WARP_MODE;
+	    else if (sys_strcmp(arg, "single_time_warp") == 0)
+		time_warp_mode = ERTS_SINGLE_TIME_WARP_MODE;
+	    else if (sys_strcmp(arg, "multi_time_warp") == 0)
+		time_warp_mode = ERTS_MULTI_TIME_WARP_MODE;
+	    else {
+		erts_fprintf(stderr,
+			     "Invalid time warp mode: %s\n", arg);
+		erts_usage();
+	    }
+	    break;
 	case 'c':
-	    if (argv[i][2] == 0) { /* -c: documented option */
-		erts_disable_tolerant_timeofday = 1;
+	    if (sys_strcmp(argv[i]+2, "false") == 0)
+		goto time_correction_false;
+	    else if (sys_strcmp(argv[i]+2, "true") == 0)
+		goto time_correction_true;
+	    else if (argv[i][2] == '\0') {
+		if (i + 1 >= argc)
+		    goto time_correction_false;
+		else {
+		    if (sys_strcmp(argv[i+1], "false") == 0) {
+			(void) get_arg(argv[i]+2, argv[i+1], &i);
+			goto time_correction_false;
+		    }
+		    else if (sys_strcmp(argv[i+1], "true") == 0) {
+			(void) get_arg(argv[i]+2, argv[i+1], &i);
+		    time_correction_true:
+			time_correction = 1;
+			break;
+		    }
+		    else {
+		    time_correction_false:
+			time_correction = 0;
+			break;
+		    }
+		}
 	    }
-#ifdef ERTS_OPCODE_COUNTER_SUPPORT
-	    else if (argv[i][2] == 'i') { /* -ci: undcoumented option*/
-		count_instructions = 1;
+	    else {
+		arg = get_arg(argv[i]+2, argv[i+1], &i);
+		erts_fprintf(stderr, "Invalid time correnction value: %s\n", arg);
+		erts_usage();
 	    }
-#endif
 	    break;
 	case 'W':
 	    arg = get_arg(argv[i]+2, argv[i+1], &i);
@@ -1925,11 +1991,12 @@ erl_start(int argc, char **argv)
 	    case 'i':
 		erts_error_logger_warnings = am_info;
 		break;
+	    case 'e':
+		erts_error_logger_warnings = am_error;
+		break;
 	    case 'w':
 		erts_error_logger_warnings = am_warning;
 		break;
-	    case 'e': /* The default */
-		erts_error_logger_warnings = am_error;
 	    default:
 		erts_fprintf(stderr, "unrecognized warning_map option %s\n", arg);
 		erts_usage();
@@ -1963,6 +2030,30 @@ erl_start(int argc, char **argv)
 	i++;
     }
 
+    if (!erts_check_time_adj_support(time_correction, time_warp_mode)) {
+	char *time_correction_str = time_correction ? "Enabled" : "Disabled";
+	char *time_warp_str = "undefined";
+	switch (time_warp_mode) {
+	case ERTS_NO_TIME_WARP_MODE:
+	    time_warp_str = "no";
+	    break;
+	case ERTS_SINGLE_TIME_WARP_MODE:
+	    time_warp_str = "single";
+	    break;
+	case ERTS_MULTI_TIME_WARP_MODE:
+	    time_warp_str = "multi";
+	    break;
+	default:
+	    time_warp_str = "undefined";
+	    break;
+	}
+	erts_fprintf(stderr, "%s time correction with %s time warp mode "
+		     "is not supported on this platform\n",
+		     time_correction_str,
+		     time_warp_str);
+	erts_usage();
+    }
+
 /* Output format on windows for sprintf defaults to three exponents.
  * We use two-exponent to mimic normal sprintf behaviour.
  */
@@ -1996,7 +2087,9 @@ erl_start(int argc, char **argv)
 	     legacy_proc_tab,
 	     port_tab_sz,
 	     port_tab_sz_ignore_files,
-	     legacy_port_tab);
+	     legacy_port_tab,
+	     time_correction,
+	     time_warp_mode);
 
     load_preloaded();
     erts_end_staging_code_ix();
@@ -2004,7 +2097,8 @@ erl_start(int argc, char **argv)
 
     erts_initialized = 1;
 
-    erl_first_process_otp("otp_ring0", NULL, 0, boot_argc, boot_argv);
+    (void) erl_first_process_otp("otp_ring0", NULL, 0,
+				 boot_argc, boot_argv);
 
 #ifdef ERTS_SMP
     erts_start_schedulers();
@@ -2012,13 +2106,17 @@ erl_start(int argc, char **argv)
 
     erts_sys_main_thread(); /* May or may not return! */
 #else
-    erts_thr_set_main_status(1, 1);
+    {
+	ErtsSchedulerData *esdp = erts_get_scheduler_data();
+	erts_thr_set_main_status(1, 1);
 #if ERTS_USE_ASYNC_READY_Q
-    erts_get_scheduler_data()->aux_work_data.async_ready.queue
-	= erts_get_async_ready_queue(1);
+	esdp->aux_work_data.async_ready.queue
+	    = erts_get_async_ready_queue(1);
 #endif
-    set_main_stack_size();
-    process_main();
+	set_main_stack_size();
+	erts_sched_init_time_sup(esdp);
+	process_main();
+    }
 #endif
 }
 
diff --git a/erts/emulator/beam/erl_instrument.c b/erts/emulator/beam/erl_instrument.c
index df7c443387..da85b86c87 100644
--- a/erts/emulator/beam/erl_instrument.c
+++ b/erts/emulator/beam/erl_instrument.c
@@ -1226,7 +1226,7 @@ erts_instr_init(int stat, int map_stat)
     mem_anchor = NULL;
 
     /* Install instrumentation functions */
-    ASSERT(sizeof(erts_allctrs) == sizeof(real_allctrs));
+    ERTS_CT_ASSERT(sizeof(erts_allctrs) == sizeof(real_allctrs));
 
     sys_memcpy((void *)real_allctrs,(void *)erts_allctrs,sizeof(erts_allctrs));
 
diff --git a/erts/emulator/beam/erl_lock_check.c b/erts/emulator/beam/erl_lock_check.c
index b105ece6f1..617ce84895 100644
--- a/erts/emulator/beam/erl_lock_check.c
+++ b/erts/emulator/beam/erl_lock_check.c
@@ -91,6 +91,7 @@ static erts_lc_lock_order_t erts_lock_order[] = {
     {   "driver_list",                          NULL                    },
     {	"proc_link",				"pid"			},
     {	"proc_msgq",				"pid"			},
+    {	"proc_btm",				"pid"			},
     {	"dist_entry",				"address"		},
     {	"dist_entry_links",			"address"		},
     {   "code_write_permission",                NULL                    },
@@ -140,7 +141,6 @@ static erts_lc_lock_order_t erts_lock_order[] = {
     {	"async_enq_mtx",			NULL			},
 #ifdef ERTS_SMP
     {	"atom_tab",				NULL			},
-    {	"make_ref",				NULL			},
     {	"misc_op_list_pre_alloc_lock",		"address"		},
     {	"message_pre_alloc_lock",		"address"		},
     {	"ptimer_pre_alloc_lock",		"address",		},
@@ -168,6 +168,8 @@ static erts_lc_lock_order_t erts_lock_order[] = {
     {	"timer_wheel",				NULL			},
     {	"system_block",				NULL			},
     {	"timeofday",				NULL			},
+    {	"get_time",				NULL			},
+    {	"get_corrected_time",			NULL			},
     {	"breakpoints",				NULL			},
     {	"pollsets_lock",			NULL			},
     {	"pix_lock",				"address"		},
@@ -184,10 +186,8 @@ static erts_lc_lock_order_t erts_lock_order[] = {
     {   "efile_drv dtrace mutex",               NULL                    },
 #endif
     {	"mtrace_buf",				NULL			},
-#ifdef __WIN32__
 #ifdef ERTS_SMP
-    {   "sys_gethrtime",                        NULL                    },
-#endif
+    {	"os_monotonic_time",			NULL			},
 #endif
     {	"erts_alloc_hard_debug",		NULL			},
     {	"hard_dbg_mseg",		        NULL	                },
diff --git a/erts/emulator/beam/erl_lock_count.c b/erts/emulator/beam/erl_lock_count.c
index cf6996ea06..c6d8f4df95 100644
--- a/erts/emulator/beam/erl_lock_count.c
+++ b/erts/emulator/beam/erl_lock_count.c
@@ -104,17 +104,13 @@ static void lcnt_clear_stats(erts_lcnt_lock_stats_t *stats) {
 }
 
 static void lcnt_time(erts_lcnt_time_t *time) {
-#if 0 || defined(HAVE_GETHRTIME)
-    SysHrTime hr_time;
-    hr_time  = sys_gethrtime();
-    time->s  = (unsigned long)(hr_time / 1000000000LL);
-    time->ns = (unsigned long)(hr_time - 1000000000LL*time->s);
-#else
-  SysTimeval tv;
-  sys_gettimeofday(&tv);
-  time->s  = tv.tv_sec;
-  time->ns = tv.tv_usec*1000LL;
-#endif
+    /*
+     * erts_sys_hrtime() is the highest resolution
+     * we could find, it may or may not be monotonic...
+     */
+    ErtsMonotonicTime mtime = erts_sys_hrtime();
+    time->s  = (unsigned long) (mtime / 1000000000LL);
+    time->ns = (unsigned long) (mtime - 1000000000LL*time->s);
 }
 
 static void lcnt_time_diff(erts_lcnt_time_t *d, erts_lcnt_time_t *t1, erts_lcnt_time_t *t0) {
diff --git a/erts/emulator/beam/erl_lock_count.h b/erts/emulator/beam/erl_lock_count.h
index ffbb93da1b..09fadd7e9e 100644
--- a/erts/emulator/beam/erl_lock_count.h
+++ b/erts/emulator/beam/erl_lock_count.h
@@ -76,7 +76,7 @@
 
 /* histogram */
 #define ERTS_LCNT_HISTOGRAM_MAX_NS    (((unsigned long)1LL << 28) - 1)
-#if 0 || defined(HAVE_GETHRTIME)
+#if 0 || defined(ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT)
 #define ERTS_LCNT_HISTOGRAM_SLOT_SIZE (30)
 #define ERTS_LCNT_HISTOGRAM_RSHIFT    (0)
 #else
diff --git a/erts/emulator/beam/erl_map.c b/erts/emulator/beam/erl_map.c
index a180047f6c..a1bd39dbc8 100644
--- a/erts/emulator/beam/erl_map.c
+++ b/erts/emulator/beam/erl_map.c
@@ -16,6 +16,9 @@
  *
  * %CopyrightEnd%
  *
+ * hashmaps are an adaption of Rich Hickeys Persistent HashMaps
+ *   which were an adaption of Phil Bagwells - Hash Array Mapped Tries
+ *
  * Author: Björn-Egil Dahlberg
  */
 
@@ -62,39 +65,73 @@
  * - erts_internal:map_to_tuple_keys/1
  */
 
+#ifndef DECL_AM
+#define DECL_AM(S) Eterm AM_ ## S = am_atom_put(#S, sizeof(#S) - 1)
+#endif
+
+/* for hashmap_from_list/1 */
+typedef struct {
+    Uint32 hx;
+    Uint32 skip;
+    Uint i;
+    Eterm  val;
+} hxnode_t;
+
+
+static Eterm flatmap_merge(Process *p, Eterm nodeA, Eterm nodeB);
+static Eterm map_merge_mixed(Process *p, Eterm flat, Eterm tree, int swap_args);
+static Eterm hashmap_merge(Process *p, Eterm nodeA, Eterm nodeB);
+static Eterm hashmap_to_list(Process *p, Eterm map);
+static Eterm hashmap_keys(Process *p, Eterm map);
+static Eterm hashmap_values(Process *p, Eterm map);
+static Eterm hashmap_delete(Process *p, Uint32 hx, Eterm key, Eterm node);
+static Eterm flatmap_from_validated_list(Process *p, Eterm list, Uint size);
+static Eterm hashmap_from_validated_list(Process *p, Eterm list, Uint size);
+static Eterm hashmap_from_unsorted_array(ErtsHeapFactory*, hxnode_t *hxns, Uint n, int reject_dupkeys);
+static Eterm hashmap_from_sorted_unique_array(ErtsHeapFactory*, hxnode_t *hxns, Uint n, int is_root);
+static Eterm hashmap_from_chunked_array(ErtsHeapFactory*, hxnode_t *hxns, Uint n, Uint size, int is_root);
+static Eterm hashmap_info(Process *p, Eterm node);
+static Eterm hashmap_bld_tuple_uint(Uint **hpp, Uint *szp, Uint n, Uint nums[]);
+static int hxnodecmp(hxnode_t* a, hxnode_t* b);
+static int hxnodecmpkey(hxnode_t* a, hxnode_t* b);
+
 /* erlang:map_size/1
  * the corresponding instruction is implemented in:
  *     beam/erl_bif_guard.c
  */
 
 BIF_RETTYPE map_size_1(BIF_ALIST_1) {
-    if (is_map(BIF_ARG_1)) {
-	Eterm *hp;
-	Uint hsz  = 0;
-	map_t *mp = (map_t*)map_val(BIF_ARG_1);
-	Uint n    = map_get_size(mp);
-
-	erts_bld_uint(NULL, &hsz, n);
+    if (is_flatmap(BIF_ARG_1)) {
+	flatmap_t *mp = (flatmap_t*)flatmap_val(BIF_ARG_1);
+	BIF_RET(make_small(flatmap_get_size(mp)));
+    } else if (is_hashmap(BIF_ARG_1)) {
+	Eterm *head, *hp, res;
+	Uint size, hsz=0;
+
+	head = hashmap_val(BIF_ARG_1);
+	size = head[1];
+	(void) erts_bld_uint(NULL, &hsz, size);
 	hp = HAlloc(BIF_P, hsz);
-	BIF_RET(erts_bld_uint(&hp, NULL, n));
+	res = erts_bld_uint(&hp, NULL, size);
+	BIF_RET(res);
     }
 
-    BIF_ERROR(BIF_P, BADARG);
+    BIF_P->fvalue = BIF_ARG_1;
+    BIF_ERROR(BIF_P, BADMAP);
 }
 
-/* maps:to_list/1
- */
+/* maps:to_list/1 */
 
 BIF_RETTYPE maps_to_list_1(BIF_ALIST_1) {
-    if (is_map(BIF_ARG_1)) {
+    if (is_flatmap(BIF_ARG_1)) {
 	Uint n;
 	Eterm* hp;
 	Eterm *ks,*vs, res, tup;
-	map_t *mp = (map_t*)map_val(BIF_ARG_1);
+	flatmap_t *mp = (flatmap_t*)flatmap_val(BIF_ARG_1);
 
-	ks  = map_get_keys(mp);
-	vs  = map_get_values(mp);
-	n   = map_get_size(mp);
+	ks  = flatmap_get_keys(mp);
+	vs  = flatmap_get_values(mp);
+	n   = flatmap_get_size(mp);
 	hp  = HAlloc(BIF_P, (2 + 3) * n);
 	res = NIL;
 
@@ -104,108 +141,101 @@ BIF_RETTYPE maps_to_list_1(BIF_ALIST_1) {
 	}
 
 	BIF_RET(res);
+    } else if (is_hashmap(BIF_ARG_1)) {
+	return hashmap_to_list(BIF_P, BIF_ARG_1);
     }
 
-    BIF_ERROR(BIF_P, BADARG);
+    BIF_P->fvalue = BIF_ARG_1;
+    BIF_ERROR(BIF_P, BADMAP);
 }
 
 /* maps:find/2
  * return value if key *matches* a key in the map
  */
 
-int erts_maps_find(Eterm key, Eterm map, Eterm *value) {
+const Eterm *
+#if HALFWORD_HEAP
+erts_maps_get_rel(Eterm key, Eterm map, Eterm *map_base)
+#else
+erts_maps_get(Eterm key, Eterm map)
+#endif
+{
+    Uint32 hx;
+    if (is_flatmap_rel(map, map_base)) {
+	Eterm *ks, *vs;
+	flatmap_t *mp;
+	Uint n, i;
+
+	mp  = (flatmap_t *)flatmap_val_rel(map, map_base);
+	n   = flatmap_get_size(mp);
 
-    Eterm *ks,*vs;
-    map_t *mp;
-    Uint n,i;
+	if (n == 0) {
+	    return NULL;
+	}
 
-    mp  = (map_t*)map_val(map);
-    n   = map_get_size(mp);
-    ks  = map_get_keys(mp);
-    vs  = map_get_values(mp);
+	ks  = (Eterm *)tuple_val_rel(mp->keys, map_base) + 1;
+	vs  = flatmap_get_values(mp);
 
-    for( i = 0; i < n; i++) {
-	if (EQ(ks[i], key)) {
-	    *value = vs[i];
-	    return 1;
+	if (is_immed(key)) {
+	    for (i = 0; i < n; i++) {
+		if (ks[i] == key) {
+		    return &vs[i];
+		}
+	    }
 	}
+
+	for (i = 0; i < n; i++) {
+	    if (eq_rel(ks[i], map_base, key, NULL)) {
+		return &vs[i];
+	    }
+	}
+	return NULL;
     }
-    return 0;
+    ASSERT(is_hashmap_rel(map, map_base));
+    hx = hashmap_make_hash(key);
+
+    return erts_hashmap_get_rel(hx, key, map, map_base);
 }
 
 BIF_RETTYPE maps_find_2(BIF_ALIST_2) {
     if (is_map(BIF_ARG_2)) {
-	Eterm *hp, value,res;
+        Eterm *hp, res;
+        const Eterm *value;
 
-	if (erts_maps_find(BIF_ARG_1, BIF_ARG_2, &value)) {
+        value = erts_maps_get(BIF_ARG_1, BIF_ARG_2);
+	if (value) {
 	    hp    = HAlloc(BIF_P, 3);
 	    res   = make_tuple(hp);
 	    *hp++ = make_arityval(2);
 	    *hp++ = am_ok;
-	    *hp++ = value;
+            *hp++ = *value;
 	    BIF_RET(res);
 	}
-
 	BIF_RET(am_error);
     }
-    BIF_ERROR(BIF_P, BADARG);
+    BIF_P->fvalue = BIF_ARG_2;
+    BIF_ERROR(BIF_P, BADMAP);
 }
+
 /* maps:get/2
  * return value if key *matches* a key in the map
- * exception bad_key if none matches
+ * exception badkey if none matches
  */
 
-
-int erts_maps_get(Eterm key, Eterm map, Eterm *value) {
-    Eterm *ks,*vs;
-    map_t *mp;
-    Uint n,i;
-
-    mp  = (map_t*)map_val(map);
-    n   = map_get_size(mp);
-
-    if (n == 0)
-	return 0;
-
-    ks  = map_get_keys(mp);
-    vs  = map_get_values(mp);
-
-    if (is_immed(key)) {
-	for( i = 0; i < n; i++) {
-	    if (ks[i] == key) {
-		*value = vs[i];
-		return 1;
-	    }
-	}
-    }
-
-    for( i = 0; i < n; i++) {
-	if (EQ(ks[i], key)) {
-	    *value = vs[i];
-	    return 1;
-	}
-    }
-    return 0;
-}
-
 BIF_RETTYPE maps_get_2(BIF_ALIST_2) {
     if (is_map(BIF_ARG_2)) {
-	Eterm *hp;
-	Eterm value, error;
-	char *s_error;
+        const Eterm *value;
 
-	if (erts_maps_get(BIF_ARG_1, BIF_ARG_2, &value)) {
-	    BIF_RET(value);
+        value = erts_maps_get(BIF_ARG_1, BIF_ARG_2);
+        if (value) {
+            BIF_RET(*value);
 	}
 
-	s_error = "bad_key";
-	error = am_atom_put(s_error, sys_strlen(s_error));
-
-	hp = HAlloc(BIF_P, 3);
-	BIF_P->fvalue = TUPLE2(hp, error, BIF_ARG_1);
-	BIF_ERROR(BIF_P, EXC_ERROR_2);
+	BIF_P->fvalue = BIF_ARG_1;
+	BIF_ERROR(BIF_P, BADKEY);
     }
-    BIF_ERROR(BIF_P, BADARG);
+    BIF_P->fvalue = BIF_ARG_2;
+    BIF_ERROR(BIF_P, BADMAP);
 }
 
 /* maps:from_list/1
@@ -213,13 +243,8 @@ BIF_RETTYPE maps_get_2(BIF_ALIST_2) {
  */
 
 BIF_RETTYPE maps_from_list_1(BIF_ALIST_1) {
-    Eterm *kv, item = BIF_ARG_1;
-    Eterm *hp, *thp,*vs, *ks, keys, res;
-    map_t *mp;
-    Uint  size = 0, unused_size = 0;
-    Sint  c = 0;
-    Sint  idx = 0;
-
+    Eterm item = BIF_ARG_1, res, *kv;
+    Uint  size = 0;
     if (is_list(item) || is_nil(item)) {
 
 	/* Calculate size and check validity */
@@ -240,450 +265,1221 @@ BIF_RETTYPE maps_from_list_1(BIF_ALIST_1) {
 	if (is_not_nil(item))
 	    goto error;
 
-	hp    = HAlloc(BIF_P, 3 + 1 + (2 * size));
-	thp   = hp;
+	if (size > MAP_SMALL_MAP_LIMIT) {
+	    BIF_RET(hashmap_from_validated_list(BIF_P, BIF_ARG_1, size));
+	} else {
+	    BIF_RET(flatmap_from_validated_list(BIF_P, BIF_ARG_1, size));
+	}
+    }
+
+error:
+
+    BIF_ERROR(BIF_P, BADARG);
+}
+
+static Eterm flatmap_from_validated_list(Process *p, Eterm list, Uint size) {
+    Eterm *kv, item = list;
+    Eterm *hp, *thp,*vs, *ks, keys, res;
+    flatmap_t *mp;
+    Uint  unused_size = 0;
+    Sint  c = 0;
+    Sint  idx = 0;
+
+
+    hp    = HAlloc(p, 3 + 1 + (2 * size));
+    thp   = hp;
+    keys  = make_tuple(hp);
+    *hp++ = make_arityval(size);
+    ks    = hp;
+    hp   += size;
+    mp    = (flatmap_t*)hp;
+    res   = make_flatmap(mp);
+    hp   += MAP_HEADER_FLATMAP_SZ;
+    vs    = hp;
+
+    mp->thing_word = MAP_HEADER_FLATMAP;
+    mp->size = size; /* set later, might shrink*/
+    mp->keys = keys;
+
+    if (size == 0)
+	return res;
+
+    /* first entry */
+    kv    = tuple_val(CAR(list_val(item)));
+    ks[0] = kv[1];
+    vs[0] = kv[2];
+    size  = 1;
+    item  = CDR(list_val(item));
+
+    /* insert sort key/value pairs */
+    while(is_list(item)) {
+
+	kv = tuple_val(CAR(list_val(item)));
+
+	/* compare ks backwards
+	 * idx represent word index to be written (hole position).
+	 * We cannot copy the elements when searching since we might
+	 * have an equal key. So we search for just the index first =(
+	 *
+	 * It is perhaps faster to move the values in the first pass.
+	 * Check for uniqueness during insert phase and then have a
+	 * second phace compacting the map if duplicates are found
+	 * during insert. .. or do someother sort .. shell-sort perhaps.
+	 */
+
+	idx = size;
+
+	while(idx > 0 && (c = CMP_TERM(kv[1],ks[idx-1])) < 0) { idx--; }
+
+	if (c == 0) {
+	    /* last compare was equal,
+	     * i.e. we have to release memory
+	     * and overwrite that key/value
+	     */
+	    ks[idx-1] = kv[1];
+	    vs[idx-1] = kv[2];
+	    unused_size++;
+	} else {
+	    Uint i = size;
+	    while(i > idx) {
+		ks[i] = ks[i-1];
+		vs[i] = vs[i-1];
+		i--;
+	    }
+	    ks[idx] = kv[1];
+	    vs[idx] = kv[2];
+	    size++;
+	}
+	item = CDR(list_val(item));
+    }
+
+    if (unused_size) {
+	/* the key tuple is embedded in the heap
+	 * write a bignum to clear it.
+	 */
+	/* release values as normal since they are on the top of the heap */
+
+	ks[size] = make_pos_bignum_header(unused_size - 1);
+	HRelease(p, vs + size + unused_size, vs + size);
+    }
+
+    *thp = make_arityval(size);
+    mp->size = size;
+    return res;
+}
+
+#define swizzle32(D,S) \
+    do { \
+	(D) = ((S) & 0x0000000f) << 28 | ((S) & 0x000000f0) << 20  \
+	    | ((S) & 0x00000f00) << 12 | ((S) & 0x0000f000) << 4   \
+	    | ((S) & 0x000f0000) >> 4  | ((S) & 0x00f00000) >> 12  \
+	    | ((S) & 0x0f000000) >> 20 | ((S) & 0xf0000000) >> 28; \
+    } while(0)
+
+#define maskval(V,L)      (((V) >> ((7 - (L))*4)) & 0xf)
+#define cdepth(V1,V2)     (hashmap_clz((V1) ^ (V2)) >> 2)
+
+static Eterm hashmap_from_validated_list(Process *p, Eterm list, Uint size) {
+    Eterm item = list;
+    Eterm *hp;
+    Eterm *kv, res;
+    Uint32 sw, hx;
+    Uint ix = 0;
+    hxnode_t *hxns;
+    ErtsHeapFactory factory;
+    DeclareTmpHeap(tmp,2,p);
+    ASSERT(size > 0);
+
+    hp = HAlloc(p, (2 * size));
+
+    /* create tmp hx values and leaf ptrs */
+    hxns = (hxnode_t *)erts_alloc(ERTS_ALC_T_TMP, size * sizeof(hxnode_t));
+
+    UseTmpHeap(2,p);
+    while(is_list(item)) {
+	res = CAR(list_val(item));
+	kv  = tuple_val(res);
+	hx  = hashmap_restore_hash(tmp,0,kv[1]);
+	swizzle32(sw,hx);
+	hxns[ix].hx   = sw;
+	hxns[ix].val  = CONS(hp, kv[1], kv[2]); hp += 2;
+	hxns[ix].skip = 1; /* will be reassigned in from_array */
+	hxns[ix].i    = ix;
+	ix++;
+	item = CDR(list_val(item));
+    }
+    UnUseTmpHeap(2,p);
+
+    factory.p = p;
+    res = hashmap_from_unsorted_array(&factory, hxns, size, 0);
+
+    erts_free(ERTS_ALC_T_TMP, (void *) hxns);
+    ERTS_VERIFY_UNUSED_TEMP_ALLOC(p);
+
+    if (hashmap_size(res) <= MAP_SMALL_MAP_LIMIT) {
+        DECLARE_WSTACK(wstack);
+	Eterm *kv, *ks, *vs;
+	flatmap_t *mp;
+	Eterm keys;
+        Uint n = hashmap_size(res);
+
+	/* build flat structure */
+	hp    = HAlloc(p, 3 + 1 + (2 * n));
 	keys  = make_tuple(hp);
-	*hp++ = make_arityval(size);
+	*hp++ = make_arityval(n);
 	ks    = hp;
-	hp   += size;
-	mp    = (map_t*)hp;
-	res   = make_map(mp);
-	hp   += MAP_HEADER_SIZE;
+	hp   += n;
+	mp    = (flatmap_t*)hp;
+	hp   += MAP_HEADER_FLATMAP_SZ;
 	vs    = hp;
 
-	mp->thing_word = MAP_HEADER;
-	mp->size = size; /* set later, might shrink*/
+	mp->thing_word = MAP_HEADER_FLATMAP;
+	mp->size = n;
 	mp->keys = keys;
 
-	if (size == 0)
-	    BIF_RET(res);
+	hashmap_iterator_init(&wstack, res, 0);
 
-	item  = BIF_ARG_1;
+	while ((kv=hashmap_iterator_next(&wstack)) != NULL) {
+	    *ks++ = CAR(kv);
+	    *vs++ = CDR(kv);
+	}
 
-	/* first entry */
-	kv    = tuple_val(CAR(list_val(item)));
-	ks[0] = kv[1];
-	vs[0] = kv[2];
-	size  = 1;
-	item  = CDR(list_val(item));
+	/* it cannot have multiple keys */
+	erts_validate_and_sort_flatmap(mp);
 
-	/* insert sort key/value pairs */
-	while(is_list(item)) {
+	DESTROY_WSTACK(wstack);
+	return make_flatmap(mp);
+    }
 
-	    kv = tuple_val(CAR(list_val(item)));
-
-	    /* compare ks backwards
-	     * idx represent word index to be written (hole position).
-	     * We cannot copy the elements when searching since we might
-	     * have an equal key. So we search for just the index first =(
-	     *
-	     * It is perhaps faster to move the values in the first pass.
-	     * Check for uniqueness during insert phase and then have a
-	     * second phace compacting the map if duplicates are found
-	     * during insert. .. or do someother sort .. shell-sort perhaps.
-	     */
+    return res;
+}
+
+Eterm erts_hashmap_from_array(ErtsHeapFactory* factory, Eterm *leafs, Uint n,
+                              int reject_dupkeys) {
+    Uint32 sw, hx;
+    Uint ix;
+    hxnode_t *hxns;
+    Eterm res;
+
+    /* create tmp hx values and leaf ptrs */
+    hxns = (hxnode_t *)erts_alloc(ERTS_ALC_T_TMP, n * sizeof(hxnode_t));
+
+    for (ix = 0; ix < n; ix++) {
+	hx  = hashmap_make_hash(*leafs);
+	swizzle32(sw,hx);
+	hxns[ix].hx   = sw;
+	hxns[ix].val  = make_list(leafs);
+	hxns[ix].skip = 1;
+	hxns[ix].i    = ix;
+	leafs += 2;
+    }
 
-	    idx = size;
+    res = hashmap_from_unsorted_array(factory, hxns, n, reject_dupkeys);
 
-	    while(idx > 0 && (c = CMP_TERM(kv[1],ks[idx-1])) < 0) { idx--; }
+    erts_free(ERTS_ALC_T_TMP, (void *) hxns);
 
-	    if (c == 0) {
-		/* last compare was equal,
-		 * i.e. we have to release memory
-		 * and overwrite that key/value
-		 */
-		ks[idx-1] = kv[1];
-		vs[idx-1] = kv[2];
-		unused_size++;
-	    } else {
-		Uint i = size;
-		while(i > idx) {
-		    ks[i] = ks[i-1];
-		    vs[i] = vs[i-1];
-		    i--;
+    return res;
+}
+
+
+Eterm erts_hashmap_from_ks_and_vs_extra(Process *p, Eterm *ks, Eterm *vs, Uint n,
+					Eterm key, Eterm value) {
+    Uint32 sw, hx;
+    Uint i,sz;
+    hxnode_t *hxns;
+    ErtsHeapFactory factory;
+    Eterm *hp, res;
+
+    sz = (key == THE_NON_VALUE) ? n : (n + 1);
+    ASSERT(sz > MAP_SMALL_MAP_LIMIT);
+    hp = HAlloc(p, 2 * sz);
+
+    /* create tmp hx values and leaf ptrs */
+    hxns = (hxnode_t *)erts_alloc(ERTS_ALC_T_TMP, sz * sizeof(hxnode_t));
+
+    for(i = 0; i < n; i++) {
+	hx = hashmap_make_hash(ks[i]);
+	swizzle32(sw,hx);
+	hxns[i].hx   = sw;
+	hxns[i].val  = CONS(hp, ks[i], vs[i]); hp += 2;
+	hxns[i].skip = 1; /* will be reassigned in from_array */
+	hxns[i].i    = i;
+    }
+
+    if (key != THE_NON_VALUE) {
+	hx = hashmap_make_hash(key);
+	swizzle32(sw,hx);
+	hxns[i].hx   = sw;
+	hxns[i].val  = CONS(hp, key, value); hp += 2;
+	hxns[i].skip = 1;
+	hxns[i].i    = i;
+    }
+
+    factory.p = p;
+    res = hashmap_from_unsorted_array(&factory, hxns, sz, 0);
+
+    erts_free(ERTS_ALC_T_TMP, (void *) hxns);
+    ERTS_VERIFY_UNUSED_TEMP_ALLOC(p);
+
+    return res;
+}
+
+static Eterm hashmap_from_unsorted_array(ErtsHeapFactory* factory,
+                                         hxnode_t *hxns, Uint n,
+                                         int reject_dupkeys) {
+    Uint jx = 0, ix = 0, lx, cx;
+    Eterm res;
+
+    if (n == 0) {
+	Eterm *hp;
+	hp = erts_produce_heap(factory, 2, 0);
+	hp[0] = MAP_HEADER_HAMT_HEAD_BITMAP(0);
+	hp[1] = 0;
+
+	return make_hashmap(hp);
+    }
+
+    /* sort and compact array (remove non-unique entries) */
+    qsort(hxns, n, sizeof(hxnode_t), (int (*)(const void *, const void *)) hxnodecmp);
+
+    ix = 0, cx = 0;
+    while(ix < n - 1) {
+	if (hxns[ix].hx == hxns[ix+1].hx) {
+
+	    /* find region of equal hash values */
+	    jx = ix + 1;
+	    while(jx < n && hxns[ix].hx == hxns[jx].hx) { jx++; }
+	    /* find all correct keys from region
+	     * (last in list but now hash sorted so we check highest id instead) */
+
+	    /* resort with keys instead of hash value within region */
+
+	    qsort(&hxns[ix], jx - ix, sizeof(hxnode_t),
+		    (int (*)(const void *, const void *)) hxnodecmpkey);
+
+	    while(ix < jx) {
+		lx = ix;
+		while(++ix < jx && EQ(CAR(list_val(hxns[ix].val)),
+				      CAR(list_val(hxns[lx].val)))) {
+                    if (reject_dupkeys)
+                        return THE_NON_VALUE;
+
+                    if (hxns[ix].i > hxns[lx].i) {
+			lx = ix;
+		    }
 		}
-		ks[idx] = kv[1];
-		vs[idx] = kv[2];
-		size++;
+		hxns[cx].hx  = hxns[lx].hx;
+		hxns[cx].val = hxns[lx].val;
+		cx++;
 	    }
-	    item = CDR(list_val(item));
+	    ix = jx;
+	    continue;
 	}
+	if (ix > cx) {
+	    hxns[cx].hx  = hxns[ix].hx;
+	    hxns[cx].val = hxns[ix].val;
+	}
+	cx++;
+	ix++;
+    }
 
-	if (unused_size) {
-	    /* the key tuple is embedded in the heap
-	     * write a bignum to clear it.
-	     */
-	    /* release values as normal since they are on the top of the heap */
+    if (ix < n) {
+	hxns[cx].hx  = hxns[ix].hx;
+	hxns[cx].val = hxns[ix].val;
+	cx++;
+    }
 
-	    ks[size] = make_pos_bignum_header(unused_size - 1);
-	    HRelease(BIF_P, vs + size + unused_size, vs + size);
-	}
+    if (cx > 1) {
+	/* recursive decompose array */
+	res = hashmap_from_sorted_unique_array(factory, hxns, cx, 0);
+    } else {
+	Eterm *hp;
 
-	*thp = make_arityval(size);
-	mp->size = size;
-	BIF_RET(res);
+	/* we only have one item, either because n was 1 or
+	 * because we hade multiples of the same key.
+	 *
+	 * hash value has been swizzled, need to drag it down to get the
+	 * correct slot. */
+
+	hp    = erts_produce_heap(factory, HAMT_HEAD_BITMAP_SZ(1), 0);
+	hp[0] = MAP_HEADER_HAMT_HEAD_BITMAP(1 << ((hxns[0].hx >> 0x1c) & 0xf));
+	hp[1] = 1;
+	hp[2] = hxns[0].val;
+	res   = make_hashmap(hp);
     }
 
-error:
+    return res;
+}
 
-    BIF_ERROR(BIF_P, BADARG);
+static Eterm hashmap_from_sorted_unique_array(ErtsHeapFactory* factory,
+                                              hxnode_t *hxns, Uint n, int lvl) {
+    Eterm res = NIL;
+    Uint i,ix,jx,elems;
+    Uint32 sw, hx;
+    Eterm val;
+    hxnode_t *tmp;
+    DeclareTmpHeapNoproc(th,2);
+    UseTmpHeapNoproc(2);
+    ASSERT(lvl < 32);
+    ix = 0;
+    elems = 1;
+    while (ix < n - 1) {
+	if (hxns[ix].hx == hxns[ix+1].hx) {
+	    jx = ix + 1;
+	    while (jx < n && hxns[ix].hx == hxns[jx].hx) { jx++; }
+	    tmp = (hxnode_t *)erts_alloc(ERTS_ALC_T_TMP, ((jx - ix)) * sizeof(hxnode_t));
+
+	    for(i = 0; i < jx - ix; i++) {
+		val = hxns[i + ix].val;
+		hx  = hashmap_restore_hash(th, lvl + 8, CAR(list_val(val)));
+		swizzle32(sw,hx);
+		tmp[i].hx   = sw;
+		tmp[i].val  = val;
+		tmp[i].i    = i;
+		tmp[i].skip = 1;
+	    }
+
+	    qsort(tmp, jx - ix, sizeof(hxnode_t), (int (*)(const void *, const void *)) hxnodecmp);
+
+	    hxns[ix].skip = jx - ix;
+	    hxns[ix].val  = hashmap_from_sorted_unique_array(factory, tmp, jx - ix, lvl + 8);
+	    erts_free(ERTS_ALC_T_TMP, (void *) tmp);
+	    ix = jx;
+	    if (ix < n) { elems++; }
+	    continue;
+	}
+	hxns[ix].skip = 1;
+	elems++;
+	ix++;
+    }
+
+    res = hashmap_from_chunked_array(factory, hxns, elems, n, !lvl);
+
+    ERTS_FACTORY_HOLE_CHECK(factory);
+
+    UnUseTmpHeapNoproc(2);
+    return res;
 }
 
-/* maps:is_key/2
- */
+#define HALLOC_EXTRA 200
+static Eterm hashmap_from_chunked_array(ErtsHeapFactory *factory, hxnode_t *hxns, Uint n,
+                                        Uint size, int is_root) {
+    Uint ix, d, dn, dc, slot, elems;
+    Uint32 v, vp, vn, hdr;
+    Uint bp, sz;
+    DECLARE_ESTACK(stack);
+    Eterm res = NIL, *hp = NULL, *nhp;
 
-BIF_RETTYPE maps_is_key_2(BIF_ALIST_2) {
-    if (is_map(BIF_ARG_2)) {
-	Eterm *ks, key;
-	map_t *mp;
-	Uint n,i;
 
-	mp  = (map_t*)map_val(BIF_ARG_2);
-	key = BIF_ARG_1;
-	n   = map_get_size(mp);
-	ks  = map_get_keys(mp);
+    /* if we get here with only one element then
+     * we have eight levels of collisions
+     */
 
-	if (n == 0)
-	    BIF_RET(am_false);
+    if (n == 1) {
+	res = hxns[0].val;
+	v   = hxns[0].hx;
+	for (d = 7; d > 0; d--) {
+	    slot  = maskval(v,d);
+	    hp    = erts_produce_heap(factory, HAMT_NODE_BITMAP_SZ(1), HALLOC_EXTRA);
+	    hp[0] = MAP_HEADER_HAMT_NODE_BITMAP(1 << slot);
+	    hp[1] = res;
+	    res   = make_hashmap(hp);
+	}
 
-	if (is_immed(key)) {
-	    for( i = 0; i < n; i++) {
-		if (ks[i] == key) {
-		    BIF_RET(am_true);
-		}
+	slot  = maskval(v,0);
+	hp    = erts_produce_heap(factory, (is_root ? 3 : 2), 0);
+
+	if (is_root) {
+	    hp[0] = MAP_HEADER_HAMT_HEAD_BITMAP(1 << slot);
+	    hp[1] = size;
+	    hp[2] = res;
+	} else {
+	    hp[0] = MAP_HEADER_HAMT_NODE_BITMAP(1 << slot);
+	    hp[1] = res;
+	}
+	return make_hashmap(hp);
+    }
+
+    /* push initial nodes on the stack,
+     * this is the starting depth */
+
+    ix = 0;
+    d  = 0;
+    vp = hxns[ix].hx;
+    v  = hxns[ix + hxns[ix].skip].hx;
+
+    ASSERT(vp > v);
+    slot = maskval(vp,d);
+
+    while(slot == maskval(v,d)) {
+	ESTACK_PUSH(stack, 1 << slot);
+	d++;
+	slot = maskval(vp,d);
+    }
+
+    res = hxns[ix].val;
+
+    if (hxns[ix].skip > 1) {
+	dc = 7;
+	/* build collision nodes */
+	while (dc > d) {
+	    hp    = erts_produce_heap(factory, HAMT_NODE_BITMAP_SZ(1), HALLOC_EXTRA);
+	    hp[0] = MAP_HEADER_HAMT_NODE_BITMAP(1 << maskval(vp,dc));
+	    hp[1] = res;
+	    res   = make_hashmap(hp);
+	    dc--;
+	}
+    }
+
+    ESTACK_PUSH2(stack,res,1 << slot);
+
+    /* all of the other nodes .. */
+    elems = n - 2; /* remove first and last elements */
+    while(elems--) {
+	hdr = ESTACK_POP(stack);
+	ix  = ix + hxns[ix].skip;
+
+	/* determine if node or subtree should be built by looking
+	 * at the next value. */
+
+	vn = hxns[ix + hxns[ix].skip].hx;
+	dn = cdepth(v,vn);
+	ASSERT(v > vn);
+
+	res = hxns[ix].val;
+
+	if (hxns[ix].skip > 1) {
+	    int wat = (d > dn) ? d : dn;
+	    dc = 7;
+	    /* build collision nodes */
+	    while (dc > wat) {
+		hp    = erts_produce_heap(factory, HAMT_NODE_BITMAP_SZ(1), HALLOC_EXTRA);
+		hp[0] = MAP_HEADER_HAMT_NODE_BITMAP(1 << maskval(v,dc));
+		hp[1] = res;
+		res   = make_hashmap(hp);
+		dc--;
 	    }
 	}
 
-	for( i = 0; i < n; i++) {
-	    if (EQ(ks[i], key)) {
-		BIF_RET(am_true);
+	/* next depth is higher (implies collision) */
+	if (d < dn) {
+	    /* hdr is the popped one initially */
+	    while(d < dn) {
+		slot = maskval(v, d);
+		bp   = 1 << slot;
+		ESTACK_PUSH(stack, hdr | bp);
+		d++;
+		hdr = 0; /* clear hdr for all other collisions */
 	    }
+
+	    slot = maskval(v, d);
+	    bp   = 1 << slot;
+	    /* no more collisions */
+            ESTACK_PUSH2(stack,res,bp);
+	} else if (d == dn) {
+	    /* no collisions at all */
+	    slot = maskval(v, d);
+	    bp   = 1 << slot;
+            ESTACK_PUSH2(stack,res,hdr | bp);
+	} else {
+	    /* dn < n, we have a drop and we are done
+	     * build nodes and subtree */
+	    while (dn != d) {
+		slot  = maskval(v, d);
+		bp    = 1 << slot;
+		/* OR bitposition before sz calculation to handle
+		 * redundant collisions */
+		hdr  |= bp;
+		sz    = hashmap_bitcount(hdr);
+		hp    = erts_produce_heap(factory, HAMT_NODE_BITMAP_SZ(sz), HALLOC_EXTRA);
+		nhp   = hp;
+		*hp++ = MAP_HEADER_HAMT_NODE_BITMAP(hdr);
+		*hp++ = res; sz--;
+		while (sz--) { *hp++ = ESTACK_POP(stack); }
+		ASSERT((hp - nhp) < 18);
+		res = make_hashmap(nhp);
+
+		/* we need to pop the next hdr and push if we don't need it */
+
+		hdr = ESTACK_POP(stack);
+		d--;
+	    }
+            ESTACK_PUSH2(stack,res,hdr);
 	}
-	BIF_RET(am_false);
+
+	vp = v;
+	v  = vn;
+	d  = dn;
+	ERTS_FACTORY_HOLE_CHECK(factory);
     }
-    BIF_ERROR(BIF_P, BADARG);
+
+    /* v and vp are reused from above */
+    dn  = cdepth(vp,v);
+    ix  = ix + hxns[ix].skip;
+    res = hxns[ix].val;
+
+    if (hxns[ix].skip > 1) {
+	dc = 7;
+	/* build collision nodes */
+	while (dc > dn) {
+	    hp    = erts_produce_heap(factory, HAMT_NODE_BITMAP_SZ(1), HALLOC_EXTRA);
+	    hp[0] = MAP_HEADER_HAMT_NODE_BITMAP(1 << maskval(v,dc));
+	    hp[1] = res;
+	    res   = make_hashmap(hp);
+	    dc--;
+	}
+    }
+
+    hdr = ESTACK_POP(stack);
+    /* pop remaining subtree if any */
+    while (dn) {
+	slot  = maskval(v, dn);
+	bp    = 1 << slot;
+	/* OR bitposition before sz calculation to handle
+	 * redundant collisions */
+	hdr  |= bp;
+	sz    = hashmap_bitcount(hdr);
+	hp    = erts_produce_heap(factory, HAMT_NODE_BITMAP_SZ(sz), HALLOC_EXTRA);
+	nhp   = hp;
+	*hp++ = MAP_HEADER_HAMT_NODE_BITMAP(hdr);
+	*hp++ = res; sz--;
+
+	while (sz--) { *hp++ = ESTACK_POP(stack); }
+	res = make_hashmap(nhp);
+	hdr = ESTACK_POP(stack);
+	dn--;
+    }
+
+    /* and finally the root .. */
+
+    slot  = maskval(v, dn);
+    bp    = 1 << slot;
+    hdr  |= bp;
+    sz    = hashmap_bitcount(hdr);
+    hp    = erts_produce_heap(factory, sz + /* hdr + item */ (is_root ? 2 : 1), 0);
+    nhp   = hp;
+
+    if (is_root) {
+	*hp++ = (hdr == 0xffff) ? MAP_HEADER_HAMT_HEAD_ARRAY : MAP_HEADER_HAMT_HEAD_BITMAP(hdr);
+	*hp++ = size;
+    } else {
+	*hp++ = MAP_HEADER_HAMT_NODE_BITMAP(hdr);
+    }
+
+    *hp++ = res; sz--;
+    while (sz--) { *hp++ = ESTACK_POP(stack); }
+
+    res = make_hashmap(nhp);
+
+    ASSERT(ESTACK_COUNT(stack) == 0);
+    DESTROY_ESTACK(stack);
+    ERTS_FACTORY_HOLE_CHECK(factory);
+    return res;
+}
+#undef HALLOC_EXTRA
+
+static int hxnodecmpkey(hxnode_t *a, hxnode_t *b) {
+    Sint c = CMP_TERM(CAR(list_val(a->val)), CAR(list_val(b->val)));
+#if ERTS_SIZEOF_ETERM <= SIZEOF_INT
+    return c;
+#else
+    return c > 0 ? 1 : (c < 0 ? -1 : 0);
+#endif
 }
 
-/* maps:keys/1
- */
+static int hxnodecmp(hxnode_t *a, hxnode_t *b) {
+    if (a->hx < b->hx)
+	return 1;
+    else if (a->hx == b->hx)
+	return 0;
+    else
+	return -1;
+}
+
+/* maps:is_key/2 */
+
+BIF_RETTYPE maps_is_key_2(BIF_ALIST_2) {
+    if (is_map(BIF_ARG_2)) {
+	BIF_RET(erts_maps_get(BIF_ARG_1, BIF_ARG_2) ? am_true : am_false);
+    }
+    BIF_P->fvalue = BIF_ARG_2;
+    BIF_ERROR(BIF_P, BADMAP);
+}
+
+/* maps:keys/1 */
 
 BIF_RETTYPE maps_keys_1(BIF_ALIST_1) {
-    if (is_map(BIF_ARG_1)) {
+    if (is_flatmap(BIF_ARG_1)) {
 	Eterm *hp, *ks, res = NIL;
-	map_t *mp;
+	flatmap_t *mp;
 	Uint n;
 
-	mp  = (map_t*)map_val(BIF_ARG_1);
-	n   = map_get_size(mp);
+	mp  = (flatmap_t*)flatmap_val(BIF_ARG_1);
+	n   = flatmap_get_size(mp);
 
 	if (n == 0)
 	    BIF_RET(res);
 
 	hp  = HAlloc(BIF_P, (2 * n));
-	ks  = map_get_keys(mp);
+	ks  = flatmap_get_keys(mp);
 
 	while(n--) {
 	    res = CONS(hp, ks[n], res); hp += 2;
 	}
 
 	BIF_RET(res);
+    } else if (is_hashmap(BIF_ARG_1)) {
+	BIF_RET(hashmap_keys(BIF_P, BIF_ARG_1));
     }
-    BIF_ERROR(BIF_P, BADARG);
+    BIF_P->fvalue = BIF_ARG_1;
+    BIF_ERROR(BIF_P, BADMAP);
 }
-/* maps:merge/2
- */
+/* maps:merge/2 */
 
 BIF_RETTYPE maps_merge_2(BIF_ALIST_2) {
-    if (is_map(BIF_ARG_1) && is_map(BIF_ARG_2)) {
-	Eterm *hp,*thp;
-	Eterm tup;
-	Eterm *ks,*vs,*ks1,*vs1,*ks2,*vs2;
-	map_t *mp1,*mp2,*mp_new;
-	Uint n1,n2,i1,i2,need,unused_size=0;
-	Sint c = 0;
+    if (is_flatmap(BIF_ARG_1)) {
+	if (is_flatmap(BIF_ARG_2)) {
+	    BIF_RET(flatmap_merge(BIF_P, BIF_ARG_1, BIF_ARG_2));
+	} else if (is_hashmap(BIF_ARG_2)) {
+	    /* Will always become a tree */
+	    BIF_RET(map_merge_mixed(BIF_P, BIF_ARG_1, BIF_ARG_2, 0));
+	}
+	BIF_P->fvalue = BIF_ARG_2;
+    } else if (is_hashmap(BIF_ARG_1)) {
+	if (is_hashmap(BIF_ARG_2)) {
+	    BIF_RET(hashmap_merge(BIF_P, BIF_ARG_1, BIF_ARG_2));
+	} else if (is_flatmap(BIF_ARG_2)) {
+	    /* Will always become a tree */
+	    BIF_RET(map_merge_mixed(BIF_P, BIF_ARG_2, BIF_ARG_1, 1));
+	}
+	BIF_P->fvalue = BIF_ARG_2;
+    } else {
+	BIF_P->fvalue = BIF_ARG_1;
+    }
+    BIF_ERROR(BIF_P, BADMAP);
+}
 
-	mp1  = (map_t*)map_val(BIF_ARG_1);
-	mp2  = (map_t*)map_val(BIF_ARG_2);
-	n1   = map_get_size(mp1);
-	n2   = map_get_size(mp2);
+static Eterm flatmap_merge(Process *p, Eterm nodeA, Eterm nodeB) {
+    Eterm *hp,*thp;
+    Eterm tup;
+    Eterm *ks,*vs,*ks1,*vs1,*ks2,*vs2;
+    flatmap_t *mp1,*mp2,*mp_new;
+    Uint n,n1,n2,i1,i2,need,unused_size=0;
+    Sint c = 0;
 
-	need = MAP_HEADER_SIZE + 1 + 2*(n1 + n2);
+    mp1  = (flatmap_t*)flatmap_val(nodeA);
+    mp2  = (flatmap_t*)flatmap_val(nodeB);
+    n1   = flatmap_get_size(mp1);
+    n2   = flatmap_get_size(mp2);
 
-	hp     = HAlloc(BIF_P, need);
-	thp    = hp;
-	tup    = make_tuple(thp);
-	ks     = hp + 1; hp += 1 + n1 + n2;
-	mp_new = (map_t*)hp; hp += MAP_HEADER_SIZE;
-	vs     = hp; hp += n1 + n2;
-
-	mp_new->thing_word = MAP_HEADER;
-	mp_new->size = 0;
-	mp_new->keys = tup;
-
-	i1  = 0; i2 = 0;
-	ks1 = map_get_keys(mp1);
-	vs1 = map_get_values(mp1);
-	ks2 = map_get_keys(mp2);
-	vs2 = map_get_values(mp2);
-
-	while(i1 < n1 && i2 < n2) {
-	    c = CMP_TERM(ks1[i1],ks2[i2]);
-	    if ( c == 0) {
-		/* use righthand side arguments map value,
-		 * but advance both maps */
-		*ks++ = ks2[i2];
-		*vs++ = vs2[i2];
-		i1++, i2++, unused_size++;
-	    } else if ( c < 0) {
-		*ks++ = ks1[i1];
-		*vs++ = vs1[i1];
-		i1++;
-	    } else {
-		*ks++ = ks2[i2];
-		*vs++ = vs2[i2];
-		i2++;
-	    }
-	}
+    need = MAP_HEADER_FLATMAP_SZ + 1 + 2 * (n1 + n2);
 
-	/* copy remaining */
-	while (i1 < n1) {
+    hp     = HAlloc(p, need);
+    thp    = hp;
+    tup    = make_tuple(thp);
+    ks     = hp + 1; hp += 1 + n1 + n2;
+    mp_new = (flatmap_t*)hp; hp += MAP_HEADER_FLATMAP_SZ;
+    vs     = hp; hp += n1 + n2;
+
+    mp_new->thing_word = MAP_HEADER_FLATMAP;
+    mp_new->size = 0;
+    mp_new->keys = tup;
+
+    i1  = 0; i2 = 0;
+    ks1 = flatmap_get_keys(mp1);
+    vs1 = flatmap_get_values(mp1);
+    ks2 = flatmap_get_keys(mp2);
+    vs2 = flatmap_get_values(mp2);
+
+    while(i1 < n1 && i2 < n2) {
+	c = CMP_TERM(ks1[i1],ks2[i2]);
+	if (c == 0) {
+	    /* use righthand side arguments map value,
+	     * but advance both maps */
+	    *ks++ = ks2[i2];
+	    *vs++ = vs2[i2];
+	    i1++, i2++, unused_size++;
+	} else if (c < 0) {
 	    *ks++ = ks1[i1];
 	    *vs++ = vs1[i1];
 	    i1++;
-	}
-
-	while (i2 < n2) {
+	} else {
 	    *ks++ = ks2[i2];
 	    *vs++ = vs2[i2];
 	    i2++;
 	}
+    }
 
-	if (unused_size) {
-	    /* the key tuple is embedded in the heap, write a bignum to clear it.
-	     *
-	     * release values as normal since they are on the top of the heap
-	     * size = n1 + n1 - unused_size
-	     */
+    /* copy remaining */
+    while (i1 < n1) {
+	*ks++ = ks1[i1];
+	*vs++ = vs1[i1];
+	i1++;
+    }
 
-	    *ks = make_pos_bignum_header(unused_size - 1);
-	    HRelease(BIF_P, vs + unused_size, vs);
-	}
+    while (i2 < n2) {
+	*ks++ = ks2[i2];
+	*vs++ = vs2[i2];
+	i2++;
+    }
 
-	mp_new->size = n1 + n2 - unused_size;
-	*thp = make_arityval(n1 + n2 - unused_size);
+    if (unused_size) {
+	/* the key tuple is embedded in the heap, write a bignum to clear it.
+	 *
+	 * release values as normal since they are on the top of the heap
+	 * size = n1 + n1 - unused_size
+	 */
 
-	BIF_RET(make_map(mp_new));
+	*ks = make_pos_bignum_header(unused_size - 1);
+	HRelease(p, vs + unused_size, vs);
     }
-    BIF_ERROR(BIF_P, BADARG);
-}
-/* maps:new/2
- */
 
-BIF_RETTYPE maps_new_0(BIF_ALIST_0) {
-    Eterm* hp;
-    Eterm tup;
-    map_t *mp;
+    n = n1 + n2 - unused_size;
+    *thp = make_arityval(n);
+    mp_new->size = n;
 
-    hp    = HAlloc(BIF_P, (MAP_HEADER_SIZE + 1));
-    tup   = make_tuple(hp);
-    *hp++ = make_arityval(0);
+    /* Reshape map to a hashmap if the map exceeds the limit */
 
-    mp    = (map_t*)hp;
-    mp->thing_word = MAP_HEADER;
-    mp->size = 0;
-    mp->keys = tup;
+    if (n > MAP_SMALL_MAP_LIMIT) {
+	Uint32 hx,sw;
+	Uint i;
+	Eterm res;
+	hxnode_t *hxns;
+        ErtsHeapFactory factory;
 
-    BIF_RET(make_map(mp));
-}
+	ks = flatmap_get_keys(mp_new);
+	vs = flatmap_get_values(mp_new);
 
-/* maps:put/3
- */
+	hp = HAlloc(p, 2 * n);
 
-Eterm erts_maps_put(Process *p, Eterm key, Eterm value, Eterm map) {
-    Sint n,i;
-    Sint c = 0;
-    Eterm* hp, *shp;
-    Eterm *ks,*vs, res, tup;
-    map_t *mp = (map_t*)map_val(map);
+	hxns = (hxnode_t *)erts_alloc(ERTS_ALC_T_TMP,n * sizeof(hxnode_t));
 
-    n = map_get_size(mp);
+	for (i = 0; i < n; i++) {
+	    hx = hashmap_make_hash(ks[i]);
+	    swizzle32(sw,hx);
+	    hxns[i].hx   = sw;
+	    hxns[i].val  = CONS(hp, ks[i], vs[i]); hp += 2;
+	    hxns[i].skip = 1;
+	    hxns[i].i    = i;
+	}
 
-    if (n == 0) {
-	hp    = HAlloc(p, MAP_HEADER_SIZE + 1 + 2);
-	tup   = make_tuple(hp);
-	*hp++ = make_arityval(1);
-	*hp++ = key;
-	res   = make_map(hp);
-	*hp++ = MAP_HEADER;
-	*hp++ = 1;
-	*hp++ = tup;
-	*hp++ = value;
+        factory.p = p;
+	res = hashmap_from_unsorted_array(&factory, hxns, n, 0);
+
+	erts_free(ERTS_ALC_T_TMP, (void *) hxns);
+	ERTS_VERIFY_UNUSED_TEMP_ALLOC(p);
 
 	return res;
     }
 
-    ks  = map_get_keys(mp);
-    vs  = map_get_values(mp);
+    return make_flatmap(mp_new);
+}
+
+static Eterm map_merge_mixed(Process *p, Eterm flat, Eterm tree, int swap_args) {
+    Eterm *ks, *vs, *hp, res;
+    flatmap_t *mp;
+    Uint n, i;
+    hxnode_t *hxns;
+    Uint32 sw, hx;
+    ErtsHeapFactory factory;
+
+    /* convert flat to tree */
+
+    ASSERT(is_flatmap(flat));
+    ASSERT(is_hashmap(tree));
+
+    mp = (flatmap_t*)flatmap_val(flat);
+    n  = flatmap_get_size(mp);
+
+    ks = flatmap_get_keys(mp);
+    vs = flatmap_get_values(mp);
+
+    hp = HAlloc(p, 2 * n);
+
+    hxns = (hxnode_t *)erts_alloc(ERTS_ALC_T_TMP, n * sizeof(hxnode_t));
 
-    /* only allocate for values,
-     * assume key-tuple will be intact
+    for (i = 0; i < n; i++) {
+	hx = hashmap_make_hash(ks[i]);
+	swizzle32(sw,hx);
+	hxns[i].hx   = sw;
+	hxns[i].val  = CONS(hp, ks[i], vs[i]); hp += 2;
+	hxns[i].skip = 1;
+	hxns[i].i    = i;
+    }
+
+    factory.p = p;
+    res = hashmap_from_unsorted_array(&factory, hxns, n, 0);
+
+    erts_free(ERTS_ALC_T_TMP, (void *) hxns);
+    ERTS_VERIFY_UNUSED_TEMP_ALLOC(p);
+
+    return swap_args ? hashmap_merge(p, tree, res) : hashmap_merge(p, res, tree);
+}
+
+#define HALLOC_EXTRA 200
+
+static Eterm hashmap_merge(Process *p, Eterm nodeA, Eterm nodeB) {
+#define PSTACK_TYPE struct HashmapMergePStackType
+    struct HashmapMergePStackType {
+	Eterm *srcA, *srcB;
+	Uint32 abm, bbm, rbm;        /* node bitmaps */
+	int keepA;
+	int ix;
+	Eterm array[16];
+    };
+    PSTACK_DECLARE(s, 4);
+    struct HashmapMergePStackType* sp = PSTACK_PUSH(s);
+    Eterm *hp, *nhp;
+    Eterm hdrA, hdrB;
+    Uint32 ahx, bhx;
+    Uint size;  /* total key-value counter */
+    int keepA = 0;
+    unsigned int lvl = 0;
+    DeclareTmpHeap(th,2,p);
+    Eterm res = THE_NON_VALUE;
+    UseTmpHeap(2,p);
+
+    /*
+     * Strategy: Do depth-first traversal of both trees (at the same time)
+     * and merge each pair of nodes.
      */
 
-    hp  = HAlloc(p, MAP_HEADER_SIZE + n);
-    shp = hp; /* save hp, used if optimistic update fails */
-    res = make_map(hp);
-    *hp++ = MAP_HEADER;
-    *hp++ = n;
-    *hp++ = mp->keys;
-
-    if (is_immed(key)) {
-	for( i = 0; i < n; i ++) {
-	    if (ks[i] == key) {
-		*hp++ = value;
-		vs++;
-		c = 1;
+    {
+	hashmap_head_t* a = (hashmap_head_t*) hashmap_val(nodeA);
+	hashmap_head_t* b = (hashmap_head_t*) hashmap_val(nodeB);
+	size = a->size + b->size;
+    }
+
+recurse:
+
+    if (primary_tag(nodeA) == TAG_PRIMARY_BOXED &&
+	primary_tag(nodeB) == TAG_PRIMARY_LIST) {
+	/* Avoid implementing this combination by switching places */
+	Eterm tmp = nodeA;
+	nodeA = nodeB;
+	nodeB = tmp;
+	keepA = !keepA;
+    }
+
+    switch (primary_tag(nodeA)) {
+    case TAG_PRIMARY_LIST: {
+	sp->srcA = list_val(nodeA);
+	switch (primary_tag(nodeB)) {
+	case TAG_PRIMARY_LIST: { /* LEAF + LEAF */
+	    sp->srcB = list_val(nodeB);
+
+	    if (EQ(CAR(sp->srcA), CAR(sp->srcB))) {
+		--size;
+		res = keepA ? nodeA : nodeB;
 	    } else {
-		*hp++ = *vs++;
+		ahx = hashmap_restore_hash(th, lvl, CAR(sp->srcA));
+		bhx = hashmap_restore_hash(th, lvl, CAR(sp->srcB));
+		sp->abm = 1 << hashmap_index(ahx);
+		sp->bbm = 1 << hashmap_index(bhx);
+
+		sp->srcA = &nodeA;
+		sp->srcB = &nodeB;
 	    }
+	    break;
 	}
-    } else {
-	for( i = 0; i < n; i ++) {
-	    if (EQ(ks[i], key)) {
-		*hp++ = value;
-		vs++;
-		c = 1;
-	    } else {
-		*hp++ = *vs++;
+	case TAG_PRIMARY_BOXED: { /* LEAF + NODE */
+	    sp->srcB = boxed_val(nodeB);
+	    ASSERT(is_header(*sp->srcB));
+	    hdrB = *sp->srcB++;
+
+	    ahx = hashmap_restore_hash(th, lvl, CAR(sp->srcA));
+	    sp->abm = 1 << hashmap_index(ahx);
+	    sp->srcA = &nodeA;
+	    switch(hdrB & _HEADER_MAP_SUBTAG_MASK) {
+	    case HAMT_SUBTAG_HEAD_ARRAY:
+                sp->srcB++;
+		sp->bbm = 0xffff;
+		break;
+
+	    case HAMT_SUBTAG_HEAD_BITMAP: sp->srcB++;
+	    case HAMT_SUBTAG_NODE_BITMAP:
+		sp->bbm = MAP_HEADER_VAL(hdrB);
+		break;
+
+	    default:
+		erl_exit(1, "bad header tag %ld\r\n", *sp->srcB & _HEADER_MAP_SUBTAG_MASK);
+		break;
 	    }
+	    break;
+	}
+	default:
+	    erl_exit(1, "bad primary tag %ld\r\n", nodeB);
 	}
+	break;
     }
+    case TAG_PRIMARY_BOXED: { /* NODE + NODE */
+	sp->srcA = boxed_val(nodeA);
+	hdrA = *sp->srcA++;
+	ASSERT(is_header(hdrA));
+	switch (hdrA & _HEADER_MAP_SUBTAG_MASK) {
+	case HAMT_SUBTAG_HEAD_ARRAY: {
+            sp->srcA++;
+	    ASSERT(primary_tag(nodeB) == TAG_PRIMARY_BOXED);
+	    sp->abm = 0xffff;
+	    sp->srcB = boxed_val(nodeB);
+	    hdrB = *sp->srcB++;
+	    ASSERT(is_header(hdrB));
+	    switch (hdrB & _HEADER_MAP_SUBTAG_MASK) {
+	    case HAMT_SUBTAG_HEAD_ARRAY:
+                sp->srcB++;
+		sp->bbm = 0xffff;
+		break;
+	    case HAMT_SUBTAG_HEAD_BITMAP: sp->srcB++;
+	    case HAMT_SUBTAG_NODE_BITMAP:
+		sp->bbm = MAP_HEADER_VAL(hdrB);
+		break;
+	    default:
+		erl_exit(1, "bad header tag %ld\r\n", *sp->srcB & _HEADER_MAP_SUBTAG_MASK);
+	    }
+	    break;
+	}
+	case HAMT_SUBTAG_HEAD_BITMAP: sp->srcA++;
+	case HAMT_SUBTAG_NODE_BITMAP: {
+	    ASSERT(primary_tag(nodeB) == TAG_PRIMARY_BOXED);
+	    sp->abm = MAP_HEADER_VAL(hdrA);
+	    sp->srcB = boxed_val(nodeB);
+	    hdrB = *sp->srcB++;
+	    ASSERT(is_header(hdrB));
+	    switch (hdrB & _HEADER_MAP_SUBTAG_MASK) {
+	    case HAMT_SUBTAG_HEAD_ARRAY:
+                sp->srcB++;
+		sp->bbm = 0xffff;
+		break;
+	    case HAMT_SUBTAG_HEAD_BITMAP: sp->srcB++;
+	    case HAMT_SUBTAG_NODE_BITMAP:
+		sp->bbm = MAP_HEADER_VAL(hdrB);
+		break;
 
-    if (c)
-	return res;
+	    default:
+		erl_exit(1, "bad header tag %ld\r\n", *sp->srcB & _HEADER_MAP_SUBTAG_MASK);
+	    }
+	    break;
+	}
+	default:
+	    erl_exit(1, "bad primary tag %ld\r\n", nodeA);
+	}
+	break;
+    }
+    default:
+	erl_exit(1, "bad primary tag %ld\r\n", nodeA);
+    }
 
-    /* need to make a new tuple,
-     * use old hp since it needs to be recreated anyway.
-     */
-    tup    = make_tuple(shp);
-    *shp++ = make_arityval(n+1);
+    for (;;) {
+	if (is_value(res)) { /* We have a complete (sub-)tree or leaf */
+	    if (lvl == 0)
+		break;
 
-    hp    = HAlloc(p, 3 + n + 1);
-    res   = make_map(hp);
-    *hp++ = MAP_HEADER;
-    *hp++ = n + 1;
-    *hp++ = tup;
+	    /* Pop from stack and continue build parent node */
+	    lvl--;
+	    sp = PSTACK_POP(s);
+	    sp->array[sp->ix++] = res;
+	    res = THE_NON_VALUE;
+	    if (sp->rbm) {
+		sp->srcA++;
+		sp->srcB++;
+		keepA = sp->keepA;
+	    }
+	} else { /* Start build a node */
+	    sp->ix = 0;
+	    sp->rbm = sp->abm | sp->bbm;
+	    ASSERT(!(sp->rbm == 0 && lvl > 0));
+	}
 
-    ks  = map_get_keys(mp);
-    vs  = map_get_values(mp);
+	while (sp->rbm) {
+	    Uint32 next = sp->rbm & (sp->rbm-1);
+	    Uint32 bit = sp->rbm ^ next;
+	    sp->rbm = next;
+	    if (sp->abm & bit) {
+		if (sp->bbm & bit) {
+		    /* Bit clash. Push and resolve by recursive merge */
+		    if (sp->rbm) {
+			sp->keepA = keepA;
+		    }
+		    nodeA = *sp->srcA;
+		    nodeB = *sp->srcB;
+		    lvl++;
+		    sp = PSTACK_PUSH(s);
+		    goto recurse;
+		} else {
+		    sp->array[sp->ix++] = *sp->srcA++;
+		}
+	    } else {
+		ASSERT(sp->bbm & bit);
+		sp->array[sp->ix++] = *sp->srcB++;
+	    }
+	}
 
-    ASSERT(n >= 0);
+	ASSERT(sp->ix == hashmap_bitcount(sp->abm | sp->bbm));
+	if (lvl == 0) {
+	    nhp = HAllocX(p, HAMT_HEAD_BITMAP_SZ(sp->ix), HALLOC_EXTRA);
+	    hp = nhp;
+	    *hp++ = (sp->ix == 16 ? MAP_HEADER_HAMT_HEAD_ARRAY
+		     : MAP_HEADER_HAMT_HEAD_BITMAP(sp->abm | sp->bbm));
+	    *hp++ = size;
+	} else {
+	    nhp = HAllocX(p, HAMT_NODE_BITMAP_SZ(sp->ix), HALLOC_EXTRA);
+	    hp = nhp;
+	    *hp++ = MAP_HEADER_HAMT_NODE_BITMAP(sp->abm | sp->bbm);
+	}
+	memcpy(hp, sp->array, sp->ix * sizeof(Eterm));
+	res = make_boxed(nhp);
+    }
+    PSTACK_DESTROY(s);
+    UnUseTmpHeap(2,p);
+    return res;
+}
 
-    /* copy map in order */
-    while (n && ((c = CMP_TERM(*ks, key)) < 0)) {
-	*shp++ = *ks++;
-	*hp++  = *vs++;
-	n--;
+static int hash_cmp(Uint32 ha, Uint32 hb)
+{
+    int i;
+    for (i=0; i<8; i++) {
+	int cmp = (int)(ha & 0xF) - (int)(hb & 0xF);
+	if (cmp)
+	    return cmp;
+	ha >>= 4;
+	hb >>= 4;
     }
+    return 0;
+}
 
-    *shp++ = key;
-    *hp++  = value;
+int hashmap_key_hash_cmp(Eterm* ap, Eterm* bp)
+{
+    unsigned int lvl = 0;
+    DeclareTmpHeapNoproc(th,2);
+    UseTmpHeapNoproc(2);
+
+    if (ap && bp) {
+	ASSERT(CMP_TERM(CAR(ap), CAR(bp)) != 0);
+	for (;;) {
+	    Uint32 ha = hashmap_restore_hash(th, lvl, CAR(ap));
+	    Uint32 hb = hashmap_restore_hash(th, lvl, CAR(bp));
+	    int cmp = hash_cmp(ha, hb);
+	    if (cmp) {
+                UnUseTmpHeapNoproc(2);
+		return cmp;
+            }
+	    lvl += 8;
+	}
+    }
+    UnUseTmpHeapNoproc(2);
+    return ap ? -1 : 1;
+}
 
-    ASSERT(n >= 0);
+/* maps:new/0 */
 
-    while(n--) {
-	*shp++ = *ks++;
-	*hp++  = *vs++;
-    }
-    /* we have one word remaining
-     * this will work out fine once we get the size word
-     * in the header.
-     */
-    *shp = make_pos_bignum_header(0);
-    return res;
+BIF_RETTYPE maps_new_0(BIF_ALIST_0) {
+    Eterm* hp;
+    Eterm tup;
+    flatmap_t *mp;
+
+    hp    = HAlloc(BIF_P, (MAP_HEADER_FLATMAP_SZ + 1));
+    tup   = make_tuple(hp);
+    *hp++ = make_arityval(0);
+
+    mp    = (flatmap_t*)hp;
+    mp->thing_word = MAP_HEADER_FLATMAP;
+    mp->size = 0;
+    mp->keys = tup;
+
+    BIF_RET(make_flatmap(mp));
 }
 
+/* maps:put/3 */
+
 BIF_RETTYPE maps_put_3(BIF_ALIST_3) {
     if (is_map(BIF_ARG_3)) {
 	BIF_RET(erts_maps_put(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3));
     }
-    BIF_ERROR(BIF_P, BADARG);
+    BIF_P->fvalue = BIF_ARG_3;
+    BIF_ERROR(BIF_P, BADMAP);
 }
 
-/* maps:remove/3
- */
+/* maps:remove/3 */
 
 int erts_maps_remove(Process *p, Eterm key, Eterm map, Eterm *res) {
-    Sint n;
-    Uint need;
-    Eterm *hp_start;
-    Eterm *thp, *mhp;
-    Eterm *ks, *vs, tup;
-    map_t *mp = (map_t*)map_val(map);
+    Uint32 hx;
+    if (is_flatmap(map)) {
+	Sint n;
+	Uint need;
+	Eterm *hp_start;
+	Eterm *thp, *mhp;
+	Eterm *ks, *vs, tup;
+	flatmap_t *mp = (flatmap_t*)flatmap_val(map);
+
+	n = flatmap_get_size(mp);
+
+	if (n == 0) {
+	    *res = map;
+	    return 1;
+	}
 
-    n = map_get_size(mp);
+	ks = flatmap_get_keys(mp);
+	vs = flatmap_get_values(mp);
 
-    if (n == 0) {
-	*res = map;
-	return 1;
-    }
+	/* Assume key exists.
+	 * Release allocated if it didn't.
+	 * Allocate key tuple first.
+	 */
 
-    ks = map_get_keys(mp);
-    vs = map_get_values(mp);
+	need   = n + 1 - 1 + 3 + n - 1; /* tuple - 1 + map - 1 */
+	hp_start = HAlloc(p, need);
+	thp    = hp_start;
+	mhp    = thp + n;               /* offset with tuple heap size */
 
-    /* Assume key exists.
-     * Release allocated if it didn't.
-     * Allocate key tuple first.
-     */
+	tup    = make_tuple(thp);
+	*thp++ = make_arityval(n - 1);
 
-    need   = n + 1 - 1 + 3 + n - 1; /* tuple - 1 + map - 1 */
-    hp_start = HAlloc(p, need);
-    thp    = hp_start;
-    mhp    = thp + n;               /* offset with tuple heap size */
+	*res   = make_flatmap(mhp);
+	*mhp++ = MAP_HEADER_FLATMAP;
+	*mhp++ = n - 1;
+	*mhp++ = tup;
 
-    tup    = make_tuple(thp);
-    *thp++ = make_arityval(n - 1);
-
-    *res   = make_map(mhp);
-    *mhp++ = MAP_HEADER;
-    *mhp++ = n - 1;
-    *mhp++ = tup;
-
-    if (is_immed(key)) {
-	while (1) {
-	    if (*ks == key) {
-		goto found_key;
-	    } else if (--n) {
-		*mhp++ = *vs++;
-		*thp++ = *ks++;
-	    } else
-		break;
-	}
-    } else {
-	while(1) {
-	    if (EQ(*ks, key)) {
-		goto found_key;
-	    } else if (--n) {
-		*mhp++ = *vs++;
-		*thp++ = *ks++;
-	    } else
-		break;
+	if (is_immed(key)) {
+	    while (1) {
+		if (*ks == key) {
+		    goto found_key;
+		} else if (--n) {
+		    *mhp++ = *vs++;
+		    *thp++ = *ks++;
+		} else
+		    break;
+	    }
+	} else {
+	    while(1) {
+		if (EQ(*ks, key)) {
+		    goto found_key;
+		} else if (--n) {
+		    *mhp++ = *vs++;
+		    *thp++ = *ks++;
+		} else
+		    break;
+	    }
 	}
-    }
 
-    /* Not found, remove allocated memory
-     * and return previous map.
-     */
-    HRelease(p, hp_start + need, hp_start);
+	/* Not found, remove allocated memory
+	 * and return previous map.
+	 */
+	HRelease(p, hp_start + need, hp_start);
 
-    *res = map;
-    return 1;
+	*res = map;
+	return 1;
 
 found_key:
-    /* Copy rest of keys and values */
-    if (--n) {
-	sys_memcpy(mhp, vs+1, n*sizeof(Eterm));
-	sys_memcpy(thp, ks+1, n*sizeof(Eterm));
+	/* Copy rest of keys and values */
+	if (--n) {
+	    sys_memcpy(mhp, vs+1, n*sizeof(Eterm));
+	    sys_memcpy(thp, ks+1, n*sizeof(Eterm));
+	}
+	return 1;
     }
+    ASSERT(is_hashmap(map));
+    hx = hashmap_make_hash(key);
+    *res = hashmap_delete(p, hx, key, map);
     return 1;
 }
 
@@ -694,32 +1490,32 @@ BIF_RETTYPE maps_remove_2(BIF_ALIST_2) {
 	    BIF_RET(res);
 	}
     }
-    BIF_ERROR(BIF_P, BADARG);
+    BIF_P->fvalue = BIF_ARG_2;
+    BIF_ERROR(BIF_P, BADMAP);
 }
 
-/* maps:update/3
- */
-
 int erts_maps_update(Process *p, Eterm key, Eterm value, Eterm map, Eterm *res) {
+    Uint32 hx;
+    if (is_flatmap(map)) {
 	Sint n,i;
 	Eterm* hp,*shp;
 	Eterm *ks,*vs;
-	map_t *mp = (map_t*)map_val(map);
+	flatmap_t *mp = (flatmap_t*)flatmap_val(map);
 
-	if ((n = map_get_size(mp)) == 0) {
+	if ((n = flatmap_get_size(mp)) == 0) {
 	    return 0;
 	}
 
-	ks  = map_get_keys(mp);
-	vs  = map_get_values(mp);
+	ks  = flatmap_get_keys(mp);
+	vs  = flatmap_get_values(mp);
 
 	/* only allocate for values,
 	 * assume key-tuple will be intact
 	 */
 
-	hp  = HAlloc(p, MAP_HEADER_SIZE + n);
+	hp  = HAlloc(p, MAP_HEADER_FLATMAP_SZ + n);
 	shp = hp;
-	*hp++ = MAP_HEADER;
+	*hp++ = MAP_HEADER_FLATMAP;
 	*hp++ = n;
 	*hp++ = mp->keys;
 
@@ -741,7 +1537,7 @@ int erts_maps_update(Process *p, Eterm key, Eterm value, Eterm map, Eterm *res)
 	    }
 	}
 
-	HRelease(p, shp + MAP_HEADER_SIZE + n, shp);
+	HRelease(p, shp + MAP_HEADER_FLATMAP_SZ + n, shp);
 	return 0;
 
 found_key:
@@ -749,53 +1545,939 @@ found_key:
 	vs++;
 	if (++i < n)
 	    sys_memcpy(hp, vs, (n - i)*sizeof(Eterm));
-	*res = make_map(shp);
+	*res = make_flatmap(shp);
 	return 1;
+    }
+
+    ASSERT(is_hashmap(map));
+    hx = hashmap_make_hash(key);
+    *res = erts_hashmap_insert(p, hx, key, value, map, 1);
+    if (is_value(*res))
+	return 1;
+
+    return 0;
+}
+
+Eterm erts_maps_put(Process *p, Eterm key, Eterm value, Eterm map) {
+    Uint32 hx;
+    Eterm res;
+    if (is_flatmap(map)) {
+	Sint n,i;
+	Sint c = 0;
+	Eterm* hp, *shp;
+	Eterm *ks, *vs, tup;
+	flatmap_t *mp = (flatmap_t*)flatmap_val(map);
+
+	n = flatmap_get_size(mp);
+
+	if (n == 0) {
+	    hp    = HAlloc(p, MAP_HEADER_FLATMAP_SZ + 1 + 2);
+	    tup   = make_tuple(hp);
+	    *hp++ = make_arityval(1);
+	    *hp++ = key;
+	    res   = make_flatmap(hp);
+	    *hp++ = MAP_HEADER_FLATMAP;
+	    *hp++ = 1;
+	    *hp++ = tup;
+	    *hp++ = value;
+
+	    return res;
+	}
+
+	ks = flatmap_get_keys(mp);
+	vs = flatmap_get_values(mp);
+
+	/* only allocate for values,
+	 * assume key-tuple will be intact
+	 */
+
+	hp  = HAlloc(p, MAP_HEADER_FLATMAP_SZ + n);
+	shp = hp; /* save hp, used if optimistic update fails */
+	res = make_flatmap(hp);
+	*hp++ = MAP_HEADER_FLATMAP;
+	*hp++ = n;
+	*hp++ = mp->keys;
+
+	if (is_immed(key)) {
+	    for( i = 0; i < n; i ++) {
+		if (ks[i] == key) {
+		    *hp++ = value;
+		    vs++;
+		    c = 1;
+		} else {
+		    *hp++ = *vs++;
+		}
+	    }
+	} else {
+	    for( i = 0; i < n; i ++) {
+		if (EQ(ks[i], key)) {
+		    *hp++ = value;
+		    vs++;
+		    c = 1;
+		} else {
+		    *hp++ = *vs++;
+		}
+	    }
+	}
+
+	if (c)
+	    return res;
+
+	/* the map will grow */
+
+	if (n >= MAP_SMALL_MAP_LIMIT) {
+	    HRelease(p, shp + MAP_HEADER_FLATMAP_SZ + n, shp);
+	    ks = flatmap_get_keys(mp);
+	    vs = flatmap_get_values(mp);
+
+	    res = erts_hashmap_from_ks_and_vs_extra(p,ks,vs,n,key,value);
+
+	    return res;
+	}
+
+	/* still a small map. need to make a new tuple,
+	 * use old hp since it needs to be recreated anyway. */
+
+	tup    = make_tuple(shp);
+	*shp++ = make_arityval(n+1);
+
+	hp    = HAlloc(p, 3 + n + 1);
+	res   = make_flatmap(hp);
+	*hp++ = MAP_HEADER_FLATMAP;
+	*hp++ = n + 1;
+	*hp++ = tup;
+
+	ks = flatmap_get_keys(mp);
+	vs = flatmap_get_values(mp);
+
+	ASSERT(n >= 0);
+
+	/* copy map in order */
+	while (n && ((c = CMP_TERM(*ks, key)) < 0)) {
+	    *shp++ = *ks++;
+	    *hp++  = *vs++;
+	    n--;
+	}
+
+	*shp++ = key;
+	*hp++  = value;
+
+	ASSERT(n >= 0);
+
+	while(n--) {
+	    *shp++ = *ks++;
+	    *hp++  = *vs++;
+	}
+	/* we have one word remaining
+	 * this will work out fine once we get the size word
+	 * in the header.
+	 */
+	*shp = make_pos_bignum_header(0);
+	return res;
+    }
+    ASSERT(is_hashmap(map));
+
+    hx  = hashmap_make_hash(key);
+    res = erts_hashmap_insert(p, hx, key, value, map, 0);
+    ASSERT(is_hashmap(res));
+
+    return res;
 }
 
+/* maps:update/3 */
+
 BIF_RETTYPE maps_update_3(BIF_ALIST_3) {
-    if (is_map(BIF_ARG_3)) {
+    if (is_not_map(BIF_ARG_3)) {
+	BIF_P->fvalue = BIF_ARG_3;
+	BIF_ERROR(BIF_P, BADMAP);
+    } else {
 	Eterm res;
 	if (erts_maps_update(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3, &res)) {
 	    BIF_RET(res);
 	}
+	BIF_P->fvalue = BIF_ARG_1;
+	BIF_ERROR(BIF_P, BADKEY);
     }
-    BIF_ERROR(BIF_P, BADARG);
 }
 
 
-/* maps:values/1
- */
+/* maps:values/1 */
 
 BIF_RETTYPE maps_values_1(BIF_ALIST_1) {
-    if (is_map(BIF_ARG_1)) {
+    if (is_flatmap(BIF_ARG_1)) {
 	Eterm *hp, *vs, res = NIL;
-	map_t *mp;
+	flatmap_t *mp;
 	Uint n;
 
-	mp  = (map_t*)map_val(BIF_ARG_1);
-	n   = map_get_size(mp);
+	mp  = (flatmap_t*)flatmap_val(BIF_ARG_1);
+	n   = flatmap_get_size(mp);
 
 	if (n == 0)
 	    BIF_RET(res);
 
 	hp  = HAlloc(BIF_P, (2 * n));
-	vs  = map_get_values(mp);
+	vs  = flatmap_get_values(mp);
 
 	while(n--) {
 	    res = CONS(hp, vs[n], res); hp += 2;
 	}
 
 	BIF_RET(res);
+    } else if (is_hashmap(BIF_ARG_1)) {
+	BIF_RET(hashmap_values(BIF_P, BIF_ARG_1));
+    }
+    BIF_P->fvalue = BIF_ARG_1;
+    BIF_ERROR(BIF_P, BADMAP);
+}
+
+static Eterm hashmap_to_list(Process *p, Eterm node) {
+    DECLARE_WSTACK(stack);
+    Eterm *hp, *kv;
+    Eterm res = NIL;
+
+    hp  = HAlloc(p, hashmap_size(node) * (2 + 3));
+    hashmap_iterator_init(&stack, node, 0);
+    while ((kv=hashmap_iterator_next(&stack)) != NULL) {
+	Eterm tup = TUPLE2(hp, CAR(kv), CDR(kv));
+	hp += 3;
+	res = CONS(hp, tup, res);
+	hp += 2;
+    }
+    DESTROY_WSTACK(stack);
+    return res;
+}
+
+void hashmap_iterator_init(ErtsWStack* s, Eterm node, int reverse) {
+    Eterm hdr = *hashmap_val(node);
+    Uint sz;
+
+    switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+    case HAMT_SUBTAG_HEAD_ARRAY:
+	sz = 16;
+	break;
+    case HAMT_SUBTAG_HEAD_BITMAP:
+	sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+	break;
+    default:
+	erl_exit(1, "bad header");
+    }
+
+    WSTACK_PUSH3((*s), (UWord)THE_NON_VALUE,  /* end marker */
+		 (UWord)(!reverse ? 0 : sz+1),
+		 (UWord)node);
+}
+
+Eterm* hashmap_iterator_next(ErtsWStack* s) {
+    Eterm node, *ptr, hdr;
+    Uint32 sz;
+    Uint idx;
+
+    for (;;) {
+        ASSERT(!WSTACK_ISEMPTY((*s)));
+	node = (Eterm) WSTACK_POP((*s));
+        if (is_non_value(node)) {
+            return NULL;
+        }
+	idx = (Uint) WSTACK_POP((*s));
+        for (;;) {
+	    ASSERT(is_boxed(node));
+	    ptr = boxed_val(node);
+	    hdr = *ptr;
+	    ASSERT(is_header(hdr));
+	    switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+	    case HAMT_SUBTAG_HEAD_ARRAY:
+		ptr++;
+		sz = 16;
+		break;
+	    case HAMT_SUBTAG_HEAD_BITMAP:
+		ptr++;
+	    case HAMT_SUBTAG_NODE_BITMAP:
+		sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+		ASSERT(sz < 17);
+		break;
+	    default:
+		erl_exit(1, "bad header");
+	    }
+
+	    idx++;
+
+	    if (idx <= sz) {
+		WSTACK_PUSH2((*s), (UWord)idx, (UWord)node);
+
+		if (is_list(ptr[idx])) {
+		    return list_val(ptr[idx]);
+		}
+		ASSERT(is_boxed(ptr[idx]));
+		node = ptr[idx];
+		idx = 0;
+	    }
+	    else
+		break; /* and pop parent node */
+        }
     }
-    BIF_ERROR(BIF_P, BADARG);
 }
 
-int erts_validate_and_sort_map(map_t* mp)
+Eterm* hashmap_iterator_prev(ErtsWStack* s) {
+    Eterm node, *ptr, hdr;
+    Uint32 sz;
+    Uint idx;
+
+    for (;;) {
+        ASSERT(!WSTACK_ISEMPTY((*s)));
+	node = (Eterm) WSTACK_POP((*s));
+        if (is_non_value(node)) {
+            return NULL;
+        }
+	idx = (Uint) WSTACK_POP((*s));
+        for (;;) {
+	    ASSERT(is_boxed(node));
+	    ptr = boxed_val(node);
+	    hdr = *ptr;
+	    ASSERT(is_header(hdr));
+	    switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+	    case HAMT_SUBTAG_HEAD_ARRAY:
+		ptr++;
+		sz = 16;
+		break;
+	    case HAMT_SUBTAG_HEAD_BITMAP:
+		ptr++;
+	    case HAMT_SUBTAG_NODE_BITMAP:
+		sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+		ASSERT(sz < 17);
+		break;
+	    default:
+		erl_exit(1, "bad header");
+	    }
+
+            if (idx > sz)
+		idx = sz;
+	    else
+		idx--;
+
+	    if (idx >= 1) {
+		WSTACK_PUSH2((*s), (UWord)idx, (UWord)node);
+
+		if (is_list(ptr[idx])) {
+		    return list_val(ptr[idx]);
+		}
+		ASSERT(is_boxed(ptr[idx]));
+		node = ptr[idx];
+		idx = 17;
+	    }
+	    else
+		break; /* and pop parent node */
+        }
+    }
+}
+
+const Eterm *
+#if HALFWORD_HEAP
+erts_hashmap_get_rel(Uint32 hx, Eterm key, Eterm node, Eterm *map_base)
+#else
+erts_hashmap_get(Uint32 hx, Eterm key, Eterm node)
+#endif
 {
-    Eterm *ks  = map_get_keys(mp);
-    Eterm *vs  = map_get_values(mp);
-    Uint   sz  = map_get_size(mp);
+    Eterm *ptr, hdr, *res;
+    Uint ix, lvl = 0;
+    Uint32 hval,bp;
+    DeclareTmpHeapNoproc(th,2);
+    UseTmpHeapNoproc(2);
+
+    ASSERT(is_boxed(node));
+    ptr = boxed_val_rel(node, map_base);
+    hdr = *ptr;
+    ASSERT(is_header(hdr));
+    ASSERT(is_hashmap_header_head(hdr));
+    ptr++;
+
+    for (;;) {
+        hval = MAP_HEADER_VAL(hdr);
+        ix   = hashmap_index(hx);
+        if (hval != 0xffff) {
+            bp   = 1 << ix;
+            if (!(bp & hval)) {
+                /* not occupied */
+                res = NULL;
+                break;
+            }
+            ix = hashmap_bitcount(hval & (bp - 1));
+        }
+        node  = ptr[ix+1];
+
+        if (is_list(node)) { /* LEAF NODE [K|V] */
+            ptr = list_val_rel(node,map_base);
+            res = eq_rel(CAR(ptr), map_base, key, NULL) ? &(CDR(ptr)) : NULL;
+            break;
+        }
+
+        hx = hashmap_shift_hash(th,hx,lvl,key);
+
+        ASSERT(is_boxed(node));
+        ptr = boxed_val_rel(node, map_base);
+        hdr = *ptr;
+        ASSERT(is_header(hdr));
+        ASSERT(!is_hashmap_header_head(hdr));
+    }
+
+    UnUseTmpHeapNoproc(2);
+    return res;
+}
+
+Eterm erts_hashmap_insert(Process *p, Uint32 hx, Eterm key, Eterm value,
+			  Eterm map, int is_update) {
+    Uint size, upsz;
+    Eterm *hp, res = THE_NON_VALUE;
+    DECLARE_ESTACK(stack);
+    if (erts_hashmap_insert_down(hx, key, map, &size, &upsz, &stack, is_update)) {
+	hp  = HAlloc(p, size);
+	res = erts_hashmap_insert_up(hp, key, value, &upsz, &stack);
+    }
+
+    DESTROY_ESTACK(stack);
+    ERTS_VERIFY_UNUSED_TEMP_ALLOC(p);
+    ERTS_HOLE_CHECK(p);
+
+    return res;
+}
+
+
+int erts_hashmap_insert_down(Uint32 hx, Eterm key, Eterm node, Uint *sz,
+			     Uint *update_size, ErtsEStack *sp, int is_update) {
+    Eterm *ptr;
+    Eterm hdr, ckey;
+    Uint32 ix, cix, bp, hval, chx;
+    Uint slot, lvl = 0, clvl;
+    Uint size = 0, n = 0;
+    DeclareTmpHeapNoproc(th,2);
+
+    *update_size = 1;
+
+    UseTmpHeapNoproc(2);
+    for (;;) {
+	switch(primary_tag(node)) {
+	    case TAG_PRIMARY_LIST: /* LEAF NODE [K|V] */
+		ptr  = list_val(node);
+		ckey = CAR(ptr);
+		if (EQ(ckey, key)) {
+		    *update_size = 0;
+		    goto unroll;
+		}
+		if (is_update) {
+                    UnUseTmpHeapNoproc(2);
+		    return 0;
+		}
+		goto insert_subnodes;
+	    case TAG_PRIMARY_BOXED:
+		ptr = boxed_val(node);
+		hdr = *ptr;
+		ASSERT(is_header(hdr));
+
+		switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+		    case HAMT_SUBTAG_HEAD_ARRAY:
+			ix    = hashmap_index(hx);
+			hx    = hashmap_shift_hash(th,hx,lvl,key);
+			size += HAMT_HEAD_ARRAY_SZ;
+			ESTACK_PUSH2(*sp, ix, node);
+			node  = ptr[ix+2];
+			break;
+		    case HAMT_SUBTAG_NODE_BITMAP:
+			hval = MAP_HEADER_VAL(hdr);
+			ix   = hashmap_index(hx);
+                        bp   = 1 << ix;
+                        if (hval == 0xffff) {
+                            slot = ix;
+                            n = 16;
+                        } else {
+                            slot = hashmap_bitcount(hval & (bp - 1));
+                            n    = hashmap_bitcount(hval);
+                        }
+
+                        ESTACK_PUSH4(*sp, n, bp, slot, node);
+
+                        if (!(bp & hval)) { /* not occupied */
+                            if (is_update) {
+				UnUseTmpHeapNoproc(2);
+                                return 0;
+                            }
+                            size += HAMT_NODE_BITMAP_SZ(n+1);
+                            goto unroll;
+                        }
+
+                        hx    = hashmap_shift_hash(th,hx,lvl,key);
+                        node  = ptr[slot+1];
+                        ASSERT(HAMT_NODE_BITMAP_SZ(n) <= 17);
+                        size += HAMT_NODE_BITMAP_SZ(n);
+                        break;
+
+		    case HAMT_SUBTAG_HEAD_BITMAP:
+			hval = MAP_HEADER_VAL(hdr);
+			ix   = hashmap_index(hx);
+			bp   = 1 << ix;
+			slot = hashmap_bitcount(hval & (bp - 1));
+			n    = hashmap_bitcount(hval);
+
+			ESTACK_PUSH4(*sp, n, bp, slot, node);
+
+			/* occupied */
+			if (bp & hval) {
+			    hx    = hashmap_shift_hash(th,hx,lvl,key);
+			    node  = ptr[slot+2];
+			    ASSERT(HAMT_HEAD_BITMAP_SZ(n) <= 18);
+			    size += HAMT_HEAD_BITMAP_SZ(n);
+			    break;
+			}
+			/* not occupied */
+			if (is_update) {
+                            UnUseTmpHeapNoproc(2);
+			    return 0;
+			}
+			size += HAMT_HEAD_BITMAP_SZ(n+1);
+			goto unroll;
+		    default:
+			erl_exit(1, "bad header tag %ld\r\n", hdr & _HEADER_MAP_SUBTAG_MASK);
+			break;
+		}
+		break;
+	    default:
+		erl_exit(1, "bad primary tag %p\r\n", node);
+		break;
+	}
+    }
+insert_subnodes:
+    clvl  = lvl;
+    chx   = hashmap_restore_hash(th,clvl,ckey);
+    size += HAMT_NODE_BITMAP_SZ(2);
+    ix    = hashmap_index(hx);
+    cix   = hashmap_index(chx);
+
+    while (cix == ix) {
+	ESTACK_PUSH4(*sp, 0, 1 << ix, 0, MAP_HEADER_HAMT_NODE_BITMAP(0));
+	size += HAMT_NODE_BITMAP_SZ(1);
+	hx    = hashmap_shift_hash(th,hx,lvl,key);
+	chx   = hashmap_shift_hash(th,chx,clvl,ckey);
+	ix    = hashmap_index(hx);
+	cix   = hashmap_index(chx);
+    }
+    ESTACK_PUSH3(*sp, cix, ix, node);
+
+unroll:
+    *sz = size + /* res cons */ 2;
+    UnUseTmpHeapNoproc(2);
+    return 1;
+}
+
+Eterm erts_hashmap_insert_up(Eterm *hp, Eterm key, Eterm value,
+			     Uint *update_size, ErtsEStack *sp) {
+    Eterm node, *ptr, hdr;
+    Eterm res;
+    Eterm *nhp = NULL;
+    Uint32 ix, cix, bp, hval;
+    Uint slot, n;
+    /* Needed for halfword */
+    DeclareTmpHeapNoproc(fake,1);
+    UseTmpHeapNoproc(1);
+
+    res = CONS(hp, key, value); hp += 2;
+
+    do {
+	node = ESTACK_POP(*sp);
+	switch(primary_tag(node)) {
+	    case TAG_PRIMARY_LIST:
+		ix  = (Uint32) ESTACK_POP(*sp);
+		cix = (Uint32) ESTACK_POP(*sp);
+
+		nhp   = hp;
+		*hp++ = MAP_HEADER_HAMT_NODE_BITMAP((1 << ix) | (1 << cix));
+		if (ix < cix) {
+		    *hp++ = res;
+		    *hp++ = node;
+		} else {
+		    *hp++ = node;
+		    *hp++ = res;
+		}
+		res = make_hashmap(nhp);
+		break;
+	    case TAG_PRIMARY_HEADER:
+		/* subnodes, fake it */
+		*fake = node;
+		node  = make_boxed(fake);
+	    case TAG_PRIMARY_BOXED:
+		ptr = boxed_val(node);
+		hdr = *ptr;
+		ASSERT(is_header(hdr));
+
+		switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+		    case HAMT_SUBTAG_HEAD_ARRAY:
+			slot  = (Uint) ESTACK_POP(*sp);
+			nhp   = hp;
+			n     = HAMT_HEAD_ARRAY_SZ - 2;
+			*hp++ = MAP_HEADER_HAMT_HEAD_ARRAY; ptr++;
+			*hp++ = (*ptr++) + *update_size;
+			while(n--) { *hp++ = *ptr++; }
+			nhp[slot+2] = res;
+			res = make_hashmap(nhp);
+			break;
+		    case HAMT_SUBTAG_NODE_BITMAP:
+			slot  = (Uint)   ESTACK_POP(*sp);
+			bp    = (Uint32) ESTACK_POP(*sp);
+			n     = (Uint32) ESTACK_POP(*sp);
+			hval  = MAP_HEADER_VAL(hdr);
+			nhp   = hp;
+			*hp++ = MAP_HEADER_HAMT_NODE_BITMAP(hval | bp); ptr++;
+
+			n -= slot;
+			while(slot--) { *hp++ = *ptr++; }
+			*hp++ = res;
+			if (hval & bp) { ptr++; n--; }
+			while(n--) { *hp++ = *ptr++; }
+
+			res = make_hashmap(nhp);
+			break;
+		    case HAMT_SUBTAG_HEAD_BITMAP:
+			slot  = (Uint)   ESTACK_POP(*sp);
+			bp    = (Uint32) ESTACK_POP(*sp);
+			n     = (Uint32) ESTACK_POP(*sp);
+			hval  = MAP_HEADER_VAL(hdr);
+			nhp   = hp;
+			*hp++ = MAP_HEADER_HAMT_HEAD_BITMAP(hval | bp); ptr++;
+			*hp++ = (*ptr++) + *update_size;
+
+			n -= slot;
+			while(slot--) { *hp++ = *ptr++; }
+			*hp++ = res;
+			if (hval & bp) { ptr++; n--; }
+			while(n--) { *hp++ = *ptr++; }
+
+			if ((hval | bp) == 0xffff) {
+			    *nhp = MAP_HEADER_HAMT_HEAD_ARRAY;
+			}
+			res = make_hashmap(nhp);
+			break;
+		    default:
+			erl_exit(1, "bad header tag %x\r\n", hdr & _HEADER_MAP_SUBTAG_MASK);
+			break;
+		}
+		break;
+	    default:
+		erl_exit(1, "bad primary tag %x\r\n", primary_tag(node));
+		break;
+	}
+
+    } while(!ESTACK_ISEMPTY(*sp));
+
+    UnUseTmpHeapNoproc(1);
+    return res;
+}
+
+static Eterm hashmap_keys(Process* p, Eterm node) {
+    DECLARE_WSTACK(stack);
+    hashmap_head_t* root;
+    Eterm *hp, *kv;
+    Eterm res = NIL;
+
+    root = (hashmap_head_t*) boxed_val(node);
+    hp  = HAlloc(p, root->size * 2);
+    hashmap_iterator_init(&stack, node, 0);
+    while ((kv=hashmap_iterator_next(&stack)) != NULL) {
+	res = CONS(hp, CAR(kv), res);
+	hp += 2;
+    }
+    DESTROY_WSTACK(stack);
+    return res;
+}
+
+static Eterm hashmap_values(Process* p, Eterm node) {
+    DECLARE_WSTACK(stack);
+    hashmap_head_t* root;
+    Eterm *hp, *kv;
+    Eterm res = NIL;
+
+    root = (hashmap_head_t*) boxed_val(node);
+    hp  = HAlloc(p, root->size * 2);
+    hashmap_iterator_init(&stack, node, 0);
+    while ((kv=hashmap_iterator_next(&stack)) != NULL) {
+	res = CONS(hp, CDR(kv), res);
+	hp += 2;
+    }
+    DESTROY_WSTACK(stack);
+    return res;
+}
+
+static Eterm hashmap_delete(Process *p, Uint32 hx, Eterm key, Eterm map) {
+    Eterm *hp = NULL, *nhp = NULL, *hp_end = NULL;
+    Eterm *ptr;
+    Eterm hdr, res = map, node = map;
+    Uint32 ix, bp, hval;
+    Uint slot, lvl = 0;
+    Uint size = 0, n = 0;
+    DECLARE_ESTACK(stack);
+    DeclareTmpHeapNoproc(th,2);
+    UseTmpHeapNoproc(2);
+
+    for (;;) {
+	switch(primary_tag(node)) {
+	    case TAG_PRIMARY_LIST:
+		if (EQ(CAR(list_val(node)), key)) {
+		    goto unroll;
+		}
+		goto not_found;
+	    case TAG_PRIMARY_BOXED:
+		ptr = boxed_val(node);
+		hdr = *ptr;
+		ASSERT(is_header(hdr));
+
+		switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+		    case HAMT_SUBTAG_HEAD_ARRAY:
+			ix    = hashmap_index(hx);
+			hx    = hashmap_shift_hash(th,hx,lvl,key);
+			size += HAMT_HEAD_ARRAY_SZ;
+			ESTACK_PUSH2(stack, ix, node);
+			node  = ptr[ix+2];
+			break;
+		    case HAMT_SUBTAG_NODE_BITMAP:
+			hval = MAP_HEADER_VAL(hdr);
+			ix   = hashmap_index(hx);
+			bp   = 1 << ix;
+                        if (hval == 0xffff) {
+                            slot = ix;
+                            n = 16;
+                        } else if (bp & hval) {
+                            slot = hashmap_bitcount(hval & (bp - 1));
+                            n    = hashmap_bitcount(hval);
+                        } else {
+                            /* not occupied */
+                            goto not_found;
+                        }
+
+			ESTACK_PUSH4(stack, n, bp, slot, node);
+
+                        hx    = hashmap_shift_hash(th,hx,lvl,key);
+                        node  = ptr[slot+1];
+                        ASSERT(HAMT_NODE_BITMAP_SZ(n) <= 17);
+                        size += HAMT_NODE_BITMAP_SZ(n);
+                        break;
+
+		    case HAMT_SUBTAG_HEAD_BITMAP:
+			hval = MAP_HEADER_VAL(hdr);
+			ix   = hashmap_index(hx);
+			bp   = 1 << ix;
+			slot = hashmap_bitcount(hval & (bp - 1));
+			n    = hashmap_bitcount(hval);
+
+			ESTACK_PUSH4(stack, n, bp, slot, node);
+
+			/* occupied */
+			if (bp & hval) {
+			    hx    = hashmap_shift_hash(th,hx,lvl,key);
+			    node  = ptr[slot+2];
+			    ASSERT(HAMT_HEAD_BITMAP_SZ(n) <= 18);
+			    size += HAMT_HEAD_BITMAP_SZ(n);
+			    break;
+			}
+			/* not occupied */
+			goto not_found;
+		    default:
+			erl_exit(1, "bad header tag %ld\r\n", hdr & _HEADER_MAP_SUBTAG_MASK);
+			break;
+		}
+		break;
+	    default:
+		erl_exit(1, "bad primary tag %p\r\n", node);
+		break;
+	}
+    }
+
+unroll:
+    /* the size is bounded and atleast one less than the previous size */
+    size -= 1;
+    n     = hashmap_size(map) - 1;
+
+    if (n <= MAP_SMALL_MAP_LIMIT) {
+	DECLARE_WSTACK(wstack);
+	Eterm *kv, *ks, *vs;
+	flatmap_t *mp;
+	Eterm keys;
+
+	DESTROY_ESTACK(stack);
+
+	/* build flat structure */
+	hp    = HAlloc(p, 3 + 1 + (2 * n));
+	keys  = make_tuple(hp);
+	*hp++ = make_arityval(n);
+	ks    = hp;
+	hp   += n;
+	mp    = (flatmap_t*)hp;
+	hp   += MAP_HEADER_FLATMAP_SZ;
+	vs    = hp;
+
+	mp->thing_word = MAP_HEADER_FLATMAP;
+	mp->size = n;
+	mp->keys = keys;
+
+	hashmap_iterator_init(&wstack, map, 0);
+
+	while ((kv=hashmap_iterator_next(&wstack)) != NULL) {
+	    if (EQ(CAR(kv),key))
+		continue;
+	    *ks++ = CAR(kv);
+	    *vs++ = CDR(kv);
+	}
+
+	/* it cannot have multiple keys */
+	erts_validate_and_sort_flatmap(mp);
+
+	DESTROY_WSTACK(wstack);
+        UnUseTmpHeapNoproc(2);
+	return make_flatmap(mp);
+    }
+
+    hp     = HAlloc(p, size);
+    hp_end = hp + size;
+    res    = THE_NON_VALUE;
+
+    do {
+	node = ESTACK_POP(stack);
+
+	/* all nodes are things */
+	ptr = boxed_val(node);
+	hdr = *ptr;
+	ASSERT(is_header(hdr));
+
+	switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+	    case HAMT_SUBTAG_HEAD_ARRAY:
+		ix  = (Uint) ESTACK_POP(stack);
+		nhp = hp;
+		if (res == THE_NON_VALUE) {
+		    n     = 16;
+		    n    -= ix;
+		    *hp++ = MAP_HEADER_HAMT_HEAD_BITMAP(0xffff ^ (1 << ix)); ptr++;
+		    *hp++ = (*ptr++) - 1;
+		    while(ix--) { *hp++ = *ptr++; }
+		    ptr++; n--;
+		    while(n--) { *hp++ = *ptr++; }
+		    res = make_hashmap(nhp);
+		} else {
+		    n     = 16;
+		    *hp++ = MAP_HEADER_HAMT_HEAD_ARRAY; ptr++;
+		    *hp++ = (*ptr++) - 1;
+		    while(n--) { *hp++ = *ptr++; }
+		    nhp[ix+2] = res;
+		    res = make_hashmap(nhp);
+		}
+		break;
+	    case HAMT_SUBTAG_NODE_BITMAP:
+		slot = (Uint)   ESTACK_POP(stack);
+		bp   = (Uint32) ESTACK_POP(stack);
+		n    = (Uint32) ESTACK_POP(stack);
+		nhp  = hp;
+
+		/* bitmap change matrix
+		 * res | none    leaf    bitmap
+		 * ----------------------------
+		 * n=1 | remove  remove  keep
+		 * n=2 | other   keep    keep
+		 * n>2 | shrink  keep    keep
+		 *
+		 * other: (remember, n is 2)
+		 *   shrink if the other bitmap value is a bitmap node
+		 *   remove if the other bitmap value is a leaf
+		 *
+		 * remove:
+		 *   this bitmap node is removed, res is moved up in tree (could be none)
+		 *   this is a special case of shrink
+		 *
+		 * keep:
+		 *   the current path index is still used down in the tree, need to keep it
+		 *   copy as usual with the updated res
+		 *
+		 * shrink:
+		 *   the current path index is no longer used down in the tree, remove it (shrink)
+		 */
+		if (res == THE_NON_VALUE) {
+		    if (n == 1) {
+			break;
+		    } else if (n == 2) {
+			if (slot == 0) {
+			    ix = 2; /* off by one 'cause hdr */
+			} else {
+			    ix = 1; /* off by one 'cause hdr */
+			}
+			if (primary_tag(ptr[ix]) == TAG_PRIMARY_LIST) {
+			    res = ptr[ix];
+			} else {
+			    hval  = MAP_HEADER_VAL(hdr);
+			    *hp++ = MAP_HEADER_HAMT_NODE_BITMAP(hval ^ bp);
+			    *hp++ = ptr[ix];
+			    res = make_hashmap(nhp);
+			}
+		    } else {
+			/* n > 2 */
+			hval  = MAP_HEADER_VAL(hdr);
+			*hp++ = MAP_HEADER_HAMT_NODE_BITMAP(hval ^ bp); ptr++;
+			n    -= slot;
+			while(slot--) { *hp++ = *ptr++; }
+			ptr++; n--;
+			while(n--) { *hp++ = *ptr++; }
+			res = make_hashmap(nhp);
+		    }
+		} else if (primary_tag(res) == TAG_PRIMARY_LIST && n == 1) {
+		    break;
+		} else {
+		    /* res is bitmap or leaf && n > 1, keep */
+		    n    -= slot;
+		    *hp++ = *ptr++;
+		    while(slot--) { *hp++ = *ptr++; }
+		    *hp++ = res;
+		    ptr++; n--;
+		    while(n--) { *hp++ = *ptr++; }
+		    res = make_hashmap(nhp);
+		}
+		break;
+	    case HAMT_SUBTAG_HEAD_BITMAP:
+		slot = (Uint)   ESTACK_POP(stack);
+		bp   = (Uint32) ESTACK_POP(stack);
+		n    = (Uint32) ESTACK_POP(stack);
+		nhp  = hp;
+
+		if (res != THE_NON_VALUE) {
+		    *hp++ = *ptr++;
+		    *hp++ = (*ptr++) - 1;
+		    n    -= slot;
+		    while(slot--) { *hp++ = *ptr++; }
+		    *hp++ = res;
+		    ptr++; n--;
+		    while(n--) { *hp++ = *ptr++; }
+		} else {
+		    hval  = MAP_HEADER_VAL(hdr);
+		    *hp++ = MAP_HEADER_HAMT_HEAD_BITMAP(hval ^ bp); ptr++;
+		    *hp++ = (*ptr++) - 1;
+		    n    -= slot;
+		    while(slot--) { *hp++ = *ptr++; }
+		    ptr++; n--;
+		    while(n--) { *hp++ = *ptr++; }
+		}
+		res = make_hashmap(nhp);
+		break;
+	    default:
+		erl_exit(1, "bad header tag %x\r\n", hdr & _HEADER_MAP_SUBTAG_MASK);
+		break;
+	}
+    } while(!ESTACK_ISEMPTY(stack));
+    HRelease(p, hp_end, hp);
+not_found:
+    DESTROY_ESTACK(stack);
+    ERTS_VERIFY_UNUSED_TEMP_ALLOC(p);
+    ERTS_HOLE_CHECK(p);
+    UnUseTmpHeapNoproc(2);
+    return res;
+}
+
+
+int erts_validate_and_sort_flatmap(flatmap_t* mp)
+{
+    Eterm *ks  = flatmap_get_keys(mp);
+    Eterm *vs  = flatmap_get_values(mp);
+    Uint   sz  = flatmap_get_size(mp);
     Uint   ix,jx;
     Eterm  tmp;
     Sint c;
@@ -822,6 +2504,59 @@ int erts_validate_and_sort_map(map_t* mp)
     return 1;
 }
 
+/* Really rough estimate of sqrt(x)
+ * Guaranteed not to be less than sqrt(x)
+ */
+static int int_sqrt_ceiling(Uint x)
+{
+    int n;
+
+    if (x <= 2)
+	return x;
+
+    n = erts_fit_in_bits_uint(x-1);
+    if (n & 1) {
+	/* Calc: sqrt(2^n) = 2^(n/2) * sqrt(2) ~= 2^(n/2) * 3 / 2 */
+	return (1 << (n/2 - 1)) * 3;
+    }
+    else {
+	/* Calc: sqrt(2^n) = 2^(n/2) */
+	return 1 << (n / 2);
+    }
+}
+
+Uint hashmap_over_estimated_heap_size(Uint k)
+{
+    /* k is nr of key-value pairs.
+       N(k) is expected nr of nodes in hamt.
+
+       Observation:
+       For uniformly distributed hash values, average of N varies between
+       0.3*k and 0.4*k (with a beautiful sine curve)
+       and standard deviation of N is about sqrt(k)/3.
+
+       Assuming normal probability distribution, we overestimate nr of nodes
+       by 15 std.devs above the average, which gives a probability for overrun
+       less than 1.0e-49 (same magnitude as a git SHA1 collision).
+     */
+    Uint max_nodes = 2*k/5 + (15/3)*int_sqrt_ceiling(k);
+    return (k*2 +     /* leaf cons cells */
+	    k +       /* leaf list terms */
+	    max_nodes*2); /* headers + parent boxed terms */
+}
+
+
+BIF_RETTYPE erts_debug_map_info_1(BIF_ALIST_1) {
+    if (is_hashmap(BIF_ARG_1)) {
+	BIF_RET(hashmap_info(BIF_P,BIF_ARG_1));
+    } else if (is_flatmap(BIF_ARG_1)) {
+	BIF_ERROR(BIF_P, BADARG);
+    } else {
+	BIF_P->fvalue = BIF_ARG_1;
+	BIF_ERROR(BIF_P, BADMAP);
+    }
+}
+
 /*
  * erts_internal:map_to_tuple_keys/1
  *
@@ -829,9 +2564,225 @@ int erts_validate_and_sort_map(map_t* mp)
  */
 
 BIF_RETTYPE erts_internal_map_to_tuple_keys_1(BIF_ALIST_1) {
-    if (is_map(BIF_ARG_1)) {
-	map_t *mp = (map_t*)map_val(BIF_ARG_1);
+    if (is_flatmap(BIF_ARG_1)) {
+	flatmap_t *mp = (flatmap_t*)flatmap_val(BIF_ARG_1);
 	BIF_RET(mp->keys);
+    } else if (is_hashmap(BIF_ARG_1)) {
+	BIF_ERROR(BIF_P, BADARG);
+    } else {
+	BIF_P->fvalue = BIF_ARG_1;
+	BIF_ERROR(BIF_P, BADMAP);
     }
-    BIF_ERROR(BIF_P, BADARG);
 }
+
+/*
+ * erts_internal:map_type/1
+ *
+ * Used in erts_debug:size/1
+ */
+
+BIF_RETTYPE erts_internal_map_type_1(BIF_ALIST_1) {
+    DECL_AM(hashmap);
+    DECL_AM(hashmap_node);
+    DECL_AM(flatmap);
+    if (is_map(BIF_ARG_1)) {
+        Eterm hdr = *(boxed_val(BIF_ARG_1));
+        ASSERT(is_header(hdr));
+        switch (hdr & _HEADER_MAP_SUBTAG_MASK) {
+            case HAMT_SUBTAG_HEAD_FLATMAP:
+                BIF_RET(AM_flatmap);
+            case HAMT_SUBTAG_HEAD_ARRAY:
+            case HAMT_SUBTAG_HEAD_BITMAP:
+                BIF_RET(AM_hashmap);
+            case HAMT_SUBTAG_NODE_BITMAP:
+                BIF_RET(AM_hashmap_node);
+            default:
+                erl_exit(1, "bad header");
+        }
+    }
+    BIF_P->fvalue = BIF_ARG_1;
+    BIF_ERROR(BIF_P, BADMAP);
+}
+
+/*
+ * erts_internal:map_hashmap_children/1
+ *
+ * Used in erts_debug:size/1
+ */
+
+BIF_RETTYPE erts_internal_map_hashmap_children_1(BIF_ALIST_1) {
+    if (is_map(BIF_ARG_1)) {
+        Eterm node = BIF_ARG_1;
+        Eterm *ptr, hdr, *hp, res = NIL;
+        Uint  sz = 0;
+        ptr = boxed_val(node);
+        hdr = *ptr;
+        ASSERT(is_header(hdr));
+
+        switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+            case HAMT_SUBTAG_HEAD_FLATMAP:
+                BIF_ERROR(BIF_P, BADARG);
+            case HAMT_SUBTAG_HEAD_BITMAP:
+                ptr++;
+            case HAMT_SUBTAG_NODE_BITMAP:
+                ptr++;
+                sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+                break;
+            case HAMT_SUBTAG_HEAD_ARRAY:
+                sz   = 16;
+                ptr += 2;
+                break;
+            default:
+                erl_exit(1, "bad header\r\n");
+                break;
+        }
+        ASSERT(sz < 17);
+        hp = HAlloc(BIF_P, 2*sz);
+        while(sz--) { res = CONS(hp, *ptr++, res); hp += 2; }
+        BIF_RET(res);
+    }
+    BIF_P->fvalue = BIF_ARG_1;
+    BIF_ERROR(BIF_P, BADMAP);
+}
+
+
+static Eterm hashmap_info(Process *p, Eterm node) {
+    Eterm *hp;
+    Eterm res = NIL, info = NIL;
+    Eterm *ptr, tup, hdr;
+    Uint sz;
+    DECL_AM(depth);
+    DECL_AM(leafs);
+    DECL_AM(bitmaps);
+    DECL_AM(arrays);
+    Uint nleaf=0, nbitmap=0, narray=0;
+    Uint bitmap_usage[16], leaf_usage[16];
+    Uint lvl = 0, clvl;
+    DECLARE_ESTACK(stack);
+
+    for (sz = 0; sz < 16; sz++) {
+	bitmap_usage[sz] = 0;
+	leaf_usage[sz] = 0;
+    }
+
+    ptr = boxed_val(node);
+    ESTACK_PUSH(stack, 0);
+    ESTACK_PUSH(stack, node);
+    do {
+	node = ESTACK_POP(stack);
+	clvl = ESTACK_POP(stack);
+	if (lvl < clvl)
+            lvl = clvl;
+	switch(primary_tag(node)) {
+	    case TAG_PRIMARY_LIST:
+		nleaf++;
+		leaf_usage[clvl] += 1;
+		break;
+	    case TAG_PRIMARY_BOXED:
+		ptr = boxed_val(node);
+		hdr = *ptr;
+		ASSERT(is_header(hdr));
+		switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+		    case HAMT_SUBTAG_NODE_BITMAP:
+			nbitmap++;
+			sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+			ASSERT(sz < 17);
+			bitmap_usage[sz-1] += 1;
+			while(sz--) {
+			    ESTACK_PUSH(stack, clvl + 1);
+			    ESTACK_PUSH(stack, ptr[sz+1]);
+			}
+			break;
+		    case HAMT_SUBTAG_HEAD_BITMAP:
+			nbitmap++;
+			sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+			bitmap_usage[sz-1] += 1;
+			while(sz--) {
+			    ESTACK_PUSH(stack, clvl + 1);
+			    ESTACK_PUSH(stack, ptr[sz+2]);
+			}
+			break;
+		    case HAMT_SUBTAG_HEAD_ARRAY:
+			narray++;
+			sz = 16;
+			while(sz--) {
+			    ESTACK_PUSH(stack, clvl + 1);
+			    ESTACK_PUSH(stack, ptr[sz+2]);
+			}
+			break;
+		    default:
+			erl_exit(1, "bad header\r\n");
+			break;
+		}
+	}
+    } while(!ESTACK_ISEMPTY(stack));
+
+
+    /* size */
+    sz = 0;
+    hashmap_bld_tuple_uint(NULL,&sz,16,leaf_usage);
+    hashmap_bld_tuple_uint(NULL,&sz,16,bitmap_usage);
+
+    /* alloc */
+    hp   = HAlloc(p, 2+3 + 3*(2+4) + sz);
+
+    info = hashmap_bld_tuple_uint(&hp,NULL,16,leaf_usage);
+    tup  = TUPLE3(hp, AM_leafs, make_small(nleaf),info); hp += 4;
+    res  = CONS(hp, tup, res); hp += 2;
+
+    info = hashmap_bld_tuple_uint(&hp,NULL,16,bitmap_usage);
+    tup  = TUPLE3(hp, AM_bitmaps, make_small(nbitmap), info); hp += 4;
+    res  = CONS(hp, tup, res); hp += 2;
+
+    tup  = TUPLE3(hp, AM_arrays, make_small(narray),NIL); hp += 4;
+    res  = CONS(hp, tup, res); hp += 2;
+
+    tup  = TUPLE2(hp, AM_depth, make_small(lvl)); hp += 3;
+    res  = CONS(hp, tup, res); hp += 2;
+
+    DESTROY_ESTACK(stack);
+    ERTS_HOLE_CHECK(p);
+    return res;
+}
+
+static Eterm hashmap_bld_tuple_uint(Uint **hpp, Uint *szp, Uint n, Uint nums[]) {
+    Eterm res = THE_NON_VALUE;
+    Eterm *ts = (Eterm *)erts_alloc(ERTS_ALC_T_TMP, n * sizeof(Eterm));
+    Uint i;
+
+    for (i = 0; i < n; i++) {
+	ts[i] = erts_bld_uint(hpp, szp, nums[i]);
+    }
+    res = erts_bld_tuplev(hpp, szp, n, ts);
+    erts_free(ERTS_ALC_T_TMP, (void *) ts);
+    return res;
+}
+
+
+/* implementation of builtin emulations */
+
+#if !ERTS_AT_LEAST_GCC_VSN__(3, 4, 0)
+/* Count leading zeros emulation */
+Uint32 hashmap_clz(Uint32 x) {
+    Uint32 y;
+    int n = 32;
+    y = x >>16;  if (y != 0) {n = n -16;  x = y;}
+    y = x >> 8;  if (y != 0) {n = n - 8;  x = y;}
+    y = x >> 4;  if (y != 0) {n = n - 4;  x = y;}
+    y = x >> 2;  if (y != 0) {n = n - 2;  x = y;}
+    y = x >> 1;  if (y != 0) return n - 2;
+    return n - x;
+}
+
+const Uint32 SK5 = 0x55555555, SK3 = 0x33333333;
+const Uint32 SKF0 = 0xF0F0F0F, SKFF = 0xFF00FF;
+
+/* CTPOP emulation */
+Uint32 hashmap_bitcount(Uint32 x) {
+    x -= ((x >> 1  ) & SK5);
+    x  =  (x & SK3 ) + ((x >> 2 ) & SK3 );
+    x  =  (x & SKF0) + ((x >> 4 ) & SKF0);
+    x +=   x >> 8;
+    return (x + (x >> 16)) & 0x3F;
+}
+#endif
diff --git a/erts/emulator/beam/erl_map.h b/erts/emulator/beam/erl_map.h
index cfacb2ec28..2cc6768bfc 100644
--- a/erts/emulator/beam/erl_map.h
+++ b/erts/emulator/beam/erl_map.h
@@ -22,13 +22,23 @@
 #define __ERL_MAP_H__
 
 #include "sys.h"
+
+/* instrinsic wrappers */
+#if ERTS_AT_LEAST_GCC_VSN__(3, 4, 0)
+#define hashmap_clz(x)       ((Uint32) __builtin_clz((unsigned int)(x)))
+#define hashmap_bitcount(x)  ((Uint32) __builtin_popcount((unsigned int) (x)))
+#else
+Uint32 hashmap_clz(Uint32 x);
+Uint32 hashmap_bitcount(Uint32 x);
+#endif
+
 /* MAP */
 
-typedef struct map_s {
+typedef struct flatmap_s {
     Eterm thing_word;
     Uint  size;
     Eterm keys;      /* tuple */
-} map_t;
+} flatmap_t;
 /* map node
  *
  * -----------
@@ -42,31 +52,144 @@ typedef struct map_s {
  * -----------
  */
 
+/* the head-node is a bitmap or array with an untagged size */
+
+
+#define hashmap_size(x)               (((hashmap_head_t*) hashmap_val(x))->size)
+#define hashmap_size_rel(RTERM, BASE) hashmap_size(rterm2wterm(RTERM, BASE))
+#define hashmap_make_hash(Key)        make_internal_hash(Key)
+
+#define hashmap_restore_hash(Heap,Lvl,Key) \
+    (((Lvl) < 8) ? hashmap_make_hash(Key) >> (4*(Lvl)) : hashmap_make_hash(CONS(Heap, make_small((Lvl)>>3), (Key))) >> (4*((Lvl) & 7)))
+#define hashmap_shift_hash(Heap,Hx,Lvl,Key) \
+    (((++(Lvl)) & 7) ? (Hx) >> 4 : hashmap_make_hash(CONS(Heap, make_small((Lvl)>>3), Key)))
 
 
 /* erl_term.h stuff */
-#define make_map(x)		make_boxed((Eterm*)(x))
-#define make_map_rel(x, BASE)   make_boxed_rel((Eterm*)(x),(BASE))
-#define is_map(x)		(is_boxed((x)) && is_map_header(*boxed_val((x))))
-#define is_map_rel(RTERM,BASE)  is_map(rterm2wterm(RTERM,BASE))
-#define is_not_map(x)           (!is_map((x)))
-#define is_map_header(x)	(((x) & (_TAG_HEADER_MASK)) == _TAG_HEADER_MAP)
-#define header_is_map(x)        ((((x) & (_HEADER_SUBTAG_MASK)) == MAP_SUBTAG))
-#define map_val(x)		(_unchecked_boxed_val((x)))
-#define map_val_rel(RTERM, BASE) map_val(rterm2wterm(RTERM, BASE))
-
-#define map_get_values(x)      (((Eterm *)(x)) + 3)
-#define map_get_keys(x)        (((Eterm *)tuple_val(((map_t *)(x))->keys)) + 1)
-#define map_get_size(x)        (((map_t*)(x))->size)
-
-#define MAP_HEADER             _make_header(1,_TAG_HEADER_MAP)
-#define MAP_HEADER_SIZE        (sizeof(map_t) / sizeof(Eterm))
-
-Eterm erts_maps_put(Process *p, Eterm key, Eterm value, Eterm map);
-int   erts_maps_update(Process *p, Eterm key, Eterm value, Eterm map, Eterm *res);
-int   erts_maps_find(Eterm key, Eterm map, Eterm *value);
-int   erts_maps_get(Eterm key, Eterm map, Eterm *value);
-int   erts_maps_remove(Process *p, Eterm key, Eterm map, Eterm *res);
-int   erts_validate_and_sort_map(map_t* map);
+#define flatmap_get_values(x)        (((Eterm *)(x)) + 3)
+#define flatmap_get_keys(x)          (((Eterm *)tuple_val(((flatmap_t *)(x))->keys)) + 1)
+#define flatmap_get_size(x)          (((flatmap_t*)(x))->size)
+
+#ifdef DEBUG
+#define MAP_SMALL_MAP_LIMIT    (3)
+#else
+#define MAP_SMALL_MAP_LIMIT    (32)
+#endif
+
+struct ErtsWStack_;
+struct ErtsEStack_;
+
+Eterm  erts_maps_put(Process *p, Eterm key, Eterm value, Eterm map);
+int    erts_maps_update(Process *p, Eterm key, Eterm value, Eterm map, Eterm *res);
+int    erts_maps_remove(Process *p, Eterm key, Eterm map, Eterm *res);
+
+Eterm  erts_hashmap_insert(Process *p, Uint32 hx, Eterm key, Eterm value,
+			   Eterm node, int is_update);
+int    erts_hashmap_insert_down(Uint32 hx, Eterm key, Eterm node, Uint *sz,
+			        Uint *upsz, struct ErtsEStack_ *sp, int is_update);
+Eterm  erts_hashmap_insert_up(Eterm *hp, Eterm key, Eterm value,
+			      Uint *upsz, struct ErtsEStack_ *sp);
+
+int    erts_validate_and_sort_flatmap(flatmap_t* map);
+Uint   hashmap_over_estimated_heap_size(Uint n);
+void   hashmap_iterator_init(struct ErtsWStack_* s, Eterm node, int reverse);
+Eterm* hashmap_iterator_next(struct ErtsWStack_* s);
+Eterm* hashmap_iterator_prev(struct ErtsWStack_* s);
+int    hashmap_key_hash_cmp(Eterm* ap, Eterm* bp);
+Eterm  erts_hashmap_from_array(ErtsHeapFactory*, Eterm *leafs, Uint n, int reject_dupkeys);
+
+#define erts_hashmap_from_ks_and_vs(P, KS, VS, N) \
+    erts_hashmap_from_ks_and_vs_extra((P), (KS), (VS), (N), THE_NON_VALUE, THE_NON_VALUE);
+
+Eterm  erts_hashmap_from_ks_and_vs_extra(Process *p, Eterm *ks, Eterm *vs, Uint n,
+					 Eterm k, Eterm v);
+
+const Eterm *
+#if HALFWORD_HEAP
+erts_maps_get_rel(Eterm key, Eterm map, Eterm *map_base);
+#  define erts_maps_get(A, B) erts_maps_get_rel(A, B, NULL)
+#else
+erts_maps_get(Eterm key, Eterm map);
+#  define erts_maps_get_rel(A, B, B_BASE) erts_maps_get(A, B)
+#endif
+
+const Eterm *
+#if HALFWORD_HEAP
+erts_hashmap_get_rel(Uint32 hx, Eterm key, Eterm node, Eterm *map_base);
+#  define erts_hashmap_get(Hx, K, M) erts_hashmap_get_rel(Hx, K, M, NULL)
+#else
+erts_hashmap_get(Uint32 hx, Eterm key, Eterm map);
+#  define erts_hashmap_get_rel(Hx, K, M, M_BASE) erts_hashmap_get(Hx, K, M)
 #endif
 
+/* hamt nodes v2.0
+ *
+ * node :: leaf | array | bitmap
+ * head
+ */
+typedef struct hashmap_head_s {
+    Eterm thing_word;
+    Uint size;
+    Eterm items[1];
+} hashmap_head_t;
+
+/* thing_word tagscheme
+ * Need two bits for map subtags
+ *
+ * Original HEADER representation:
+ *
+ *     aaaaaaaaaaaaaaaa aaaaaaaaaatttt00       arity:26, tag:4
+ *
+ * For maps we have:
+ *
+ *     vvvvvvvvvvvvvvvv aaaaaaaamm111100       val:16, arity:8, mtype:2
+ *
+ * unsure about trailing zeros
+ *
+ * map-tag:
+ *     00 - flat map tag (non-hamt) -> val:16 = #items
+ *     01 - map-node bitmap tag     -> val:16 = bitmap
+ *     10 - map-head (array-node)   -> val:16 = 0xffff
+ *     11 - map-head (bitmap-node)  -> val:16 = bitmap
+ */
+
+/* erl_map.h stuff */
+
+#define is_hashmap_header_head(x) ((MAP_HEADER_TYPE(x) & (0x2)))
+
+#define MAKE_MAP_HEADER(Type,Arity,Val) \
+    (_make_header(((((Uint16)(Val)) << MAP_HEADER_ARITY_SZ) | (Arity)) << MAP_HEADER_TAG_SZ | (Type) , _TAG_HEADER_MAP))
+
+#define MAP_HEADER_FLATMAP \
+    MAKE_MAP_HEADER(MAP_HEADER_TAG_FLATMAP_HEAD,0x1,0x0)
+
+#define MAP_HEADER_HAMT_HEAD_ARRAY \
+    MAKE_MAP_HEADER(MAP_HEADER_TAG_HAMT_HEAD_ARRAY,0x1,0xffff)
+
+#define MAP_HEADER_HAMT_HEAD_BITMAP(Bmp) \
+    MAKE_MAP_HEADER(MAP_HEADER_TAG_HAMT_HEAD_BITMAP,0x1,Bmp)
+
+#define MAP_HEADER_HAMT_NODE_BITMAP(Bmp) \
+    MAKE_MAP_HEADER(MAP_HEADER_TAG_HAMT_NODE_BITMAP,0x0,Bmp)
+
+#define MAP_HEADER_FLATMAP_SZ  (sizeof(flatmap_t) / sizeof(Eterm))
+
+#define HAMT_NODE_ARRAY_SZ      (17)
+#define HAMT_HEAD_ARRAY_SZ      (18)
+#define HAMT_NODE_BITMAP_SZ(n)  (1 + n)
+#define HAMT_HEAD_BITMAP_SZ(n)  (2 + n)
+
+/* 2 bits maps tag + 4 bits subtag + 2 ignore bits */
+#define _HEADER_MAP_SUBTAG_MASK       (0xfc)
+/* 1 bit map tag + 1 ignore bit + 4 bits subtag + 2 ignore bits */
+#define _HEADER_MAP_HASHMAP_HEAD_MASK (0xbc)
+
+#define HAMT_SUBTAG_NODE_BITMAP  ((MAP_HEADER_TAG_HAMT_NODE_BITMAP << _HEADER_ARITY_OFFS) | MAP_SUBTAG)
+#define HAMT_SUBTAG_HEAD_ARRAY   ((MAP_HEADER_TAG_HAMT_HEAD_ARRAY  << _HEADER_ARITY_OFFS) | MAP_SUBTAG)
+#define HAMT_SUBTAG_HEAD_BITMAP  ((MAP_HEADER_TAG_HAMT_HEAD_BITMAP << _HEADER_ARITY_OFFS) | MAP_SUBTAG)
+#define HAMT_SUBTAG_HEAD_FLATMAP ((MAP_HEADER_TAG_FLATMAP_HEAD << _HEADER_ARITY_OFFS) | MAP_SUBTAG)
+
+#define hashmap_index(hash)      (((Uint32)hash) & 0xf)
+
+
+#endif
diff --git a/erts/emulator/beam/erl_math.c b/erts/emulator/beam/erl_math.c
index 16d4fdc09c..9b864628db 100644
--- a/erts/emulator/beam/erl_math.c
+++ b/erts/emulator/beam/erl_math.c
@@ -207,6 +207,24 @@ BIF_RETTYPE math_log_1(BIF_ALIST_1)
     return math_call_1(BIF_P, log, BIF_ARG_1);
 }
 
+#ifdef HAVE_LOG2
+static double
+log2_wrapper(double x)
+{
+    return log2(x);
+}
+#else
+static double
+log2_wrapper(double x)
+{
+    return log(x) / 0.6931471805599453; /* log(2.0); */
+}
+#endif
+
+BIF_RETTYPE math_log2_1(BIF_ALIST_1)
+{
+    return math_call_1(BIF_P, log2_wrapper, BIF_ARG_1);
+}
 
 BIF_RETTYPE math_log10_1(BIF_ALIST_1)
 {
diff --git a/erts/emulator/beam/erl_message.c b/erts/emulator/beam/erl_message.c
index 8870fac7d9..ccfc2e6458 100644
--- a/erts/emulator/beam/erl_message.c
+++ b/erts/emulator/beam/erl_message.c
@@ -369,11 +369,7 @@ erts_queue_dist_message(Process *rcvr,
                         tok_label, tok_lastcnt, tok_serial);
             }
 #endif
-	    erts_queue_message(rcvr, rcvr_locks, mbuf, msg, token
-#ifdef USE_VM_PROBES
-			       , NIL
-#endif
-			       );
+	    erts_queue_message(rcvr, rcvr_locks, mbuf, msg, token);
     }
     else {
 	/* Enqueue message on external format */
@@ -563,15 +559,15 @@ queue_message(Process *c_p,
 }
 
 void
-erts_queue_message(Process* receiver,
-		   ErtsProcLocks *receiver_locks,
-		   ErlHeapFragment* bp,
-		   Eterm message,
-		   Eterm seq_trace_token
 #ifdef USE_VM_PROBES
-		   , Eterm dt_utag
+erts_queue_message_probe(Process* receiver, ErtsProcLocks *receiver_locks,
+                         ErlHeapFragment* bp,
+                         Eterm message, Eterm seq_trace_token, Eterm dt_utag)
+#else
+erts_queue_message(Process* receiver, ErtsProcLocks *receiver_locks,
+                   ErlHeapFragment* bp,
+                   Eterm message, Eterm seq_trace_token)
 #endif
-    )
 {
     queue_message(NULL,
 		  receiver,
@@ -1117,11 +1113,7 @@ erts_deliver_exit_message(Eterm from, Process *to, ErtsProcLocks *to_locksp,
 	/* the trace token must in this case be updated by the caller */
 	seq_trace_output(token, save, SEQ_TRACE_SEND, to->common.id, NULL);
 	temptoken = copy_struct(token, sz_token, &hp, &bp->off_heap);
-	erts_queue_message(to, to_locksp, bp, save, temptoken
-#ifdef USE_VM_PROBES
-			   , NIL
-#endif
-			   );
+	erts_queue_message(to, to_locksp, bp, save, temptoken);
     } else {
 	ErlOffHeap *ohp;
 	sz_reason = size_object(reason);
@@ -1138,11 +1130,19 @@ erts_deliver_exit_message(Eterm from, Process *to, ErtsProcLocks *to_locksp,
 		     ? from
 		     : copy_struct(from, sz_from, &hp, ohp));
 	save = TUPLE3(hp, am_EXIT, from_copy, mess);
-	erts_queue_message(to, to_locksp, bp, save, NIL
-#ifdef USE_VM_PROBES
-			   , NIL
-#endif
-			   );
+	erts_queue_message(to, to_locksp, bp, save, NIL);
     }
 }
 
+Eterm* erts_produce_heap(ErtsHeapFactory* factory, Uint need, Uint xtra)
+{
+    Eterm* res;
+    if (factory->p) {
+        res = HAllocX(factory->p, need, xtra);
+    } else {
+        res = factory->hp;
+        factory->hp += need;
+    }
+    return res;
+}
+
diff --git a/erts/emulator/beam/erl_message.h b/erts/emulator/beam/erl_message.h
index 0f3bb8d281..1e1dafee90 100644
--- a/erts/emulator/beam/erl_message.h
+++ b/erts/emulator/beam/erl_message.h
@@ -68,6 +68,21 @@ struct erl_heap_fragment {
     Eterm mem[1];		/* Data */
 };
 
+typedef struct {
+    Process* p;
+    Eterm* hp;
+} ErtsHeapFactory;
+
+Eterm* erts_produce_heap(ErtsHeapFactory*, Uint need, Uint xtra);
+#ifdef CHECK_FOR_HOLES
+# define ERTS_FACTORY_HOLE_CHECK(f) do {    \
+        if ((f)->p) erts_check_for_holes((f)->p); \
+    } while (0)
+#else
+# define ERTS_FACTORY_HOLE_CHECK(p)
+#endif
+
+
 typedef struct erl_mesg {
     struct erl_mesg* next;	/* Next message */
     union {
@@ -233,11 +248,17 @@ ErlHeapFragment* erts_resize_message_buffer(ErlHeapFragment *, Uint,
 					    Eterm *, Uint);
 void free_message_buffer(ErlHeapFragment *);
 void erts_queue_dist_message(Process*, ErtsProcLocks*, ErtsDistExternal *, Eterm);
-void erts_queue_message(Process*, ErtsProcLocks*, ErlHeapFragment*, Eterm, Eterm
 #ifdef USE_VM_PROBES
-		   , Eterm dt_utag
+void erts_queue_message_probe(Process*, ErtsProcLocks*, ErlHeapFragment*,
+                              Eterm message, Eterm seq_trace_token, Eterm dt_utag);
+#define erts_queue_message(RP,RL,BP,Msg,SEQ) \
+    erts_queue_message_probe((RP),(RL),(BP),(Msg),(SEQ),NIL)
+#else
+void erts_queue_message(Process*, ErtsProcLocks*, ErlHeapFragment*,
+                        Eterm message, Eterm seq_trace_token);
+#define erts_queue_message_probe(RP,RL,BP,Msg,SEQ,TAG) \
+    erts_queue_message((RP),(RL),(BP),(Msg),(SEQ))
 #endif
-);
 void erts_deliver_exit_message(Eterm, Process*, ErtsProcLocks *, Eterm, Eterm);
 Sint erts_send_message(Process*, Process*, ErtsProcLocks*, Eterm, unsigned);
 void erts_link_mbuf_to_proc(Process *proc, ErlHeapFragment *bp);
diff --git a/erts/emulator/beam/erl_monitors.h b/erts/emulator/beam/erl_monitors.h
index fb11dbbd22..9972890db7 100644
--- a/erts/emulator/beam/erl_monitors.h
+++ b/erts/emulator/beam/erl_monitors.h
@@ -82,6 +82,7 @@
 /* Type tags for monitors */
 #define MON_ORIGIN 1
 #define MON_TARGET 3
+#define MON_TIME_OFFSET 7
 
 /* Type tags for links */
 #define LINK_PID 1   /* ...Or port */
@@ -103,7 +104,7 @@ typedef struct erts_monitor_or_link {
 typedef struct erts_monitor {
     struct erts_monitor *left, *right; 
     Sint16 balance;
-    Uint16 type;  /* MON_ORIGIN | MON_TARGET */
+    Uint16 type;  /* MON_ORIGIN | MON_TARGET | MON_TIME_OFFSET */
     Eterm ref;
     Eterm pid;    /* In case of distributed named monitor, this is the
 		     nodename atom in MON_ORIGIN process, otherwise a pid or
diff --git a/erts/emulator/beam/erl_mtrace.c b/erts/emulator/beam/erl_mtrace.c
index c8bb126687..fa1bde1c87 100644
--- a/erts/emulator/beam/erl_mtrace.c
+++ b/erts/emulator/beam/erl_mtrace.c
@@ -627,7 +627,7 @@ erts_mtrace_install_wrapper_functions(void)
     if (erts_mtrace_enabled) {
 	int i;
 	/* Install trace functions */
-	ASSERT(sizeof(erts_allctrs) == sizeof(real_allctrs));
+	ERTS_CT_ASSERT(sizeof(erts_allctrs) == sizeof(real_allctrs));
 
 	sys_memcpy((void *) real_allctrs,
 		   (void *) erts_allctrs,
diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c
index adc3520ebb..45fc949b81 100644
--- a/erts/emulator/beam/erl_nif.c
+++ b/erts/emulator/beam/erl_nif.c
@@ -36,6 +36,7 @@
 #include "erl_thr_progress.h"
 #include "dtrace-wrapper.h"
 #include "erl_process.h"
+#include "erl_bif_unique.h"
 #if defined(USE_DYNAMIC_TRACE) && (defined(USE_DTRACE) || defined(USE_SYSTEMTAP))
 #define HAVE_USE_DTRACE 1
 #endif
@@ -127,6 +128,7 @@ void erts_pre_nif(ErlNifEnv* env, Process* p, struct erl_module_nif* mod_nif)
     env->heap_frag = NULL;
     env->fpe_was_unmasked = erts_block_fpe();
     env->tmp_obj_list = NULL;
+    env->exception_thrown = 0;
 }
 
 static void pre_nif_noproc(ErlNifEnv* env, struct erl_module_nif* mod_nif)
@@ -334,7 +336,7 @@ int enif_send(ErlNifEnv* env, const ErlNifPid* to_pid,
     rp = (scheduler
 	  ? erts_proc_lookup(receiver)
 	  : erts_pid2proc_opt(c_p, ERTS_PROC_LOCK_MAIN,
-			      receiver, rp_locks, ERTS_P2P_FLG_SMP_INC_REFC));
+			      receiver, rp_locks, ERTS_P2P_FLG_INC_REFC));
     if (rp == NULL) {
 	ASSERT(env == NULL || receiver != c_p->common.id);
 	return 0;
@@ -356,17 +358,13 @@ int enif_send(ErlNifEnv* env, const ErlNifPid* to_pid,
     if (flush_me) {	
 	flush_env(env); /* Needed for ERTS_HOLE_CHECK */ 
     }
-    erts_queue_message(rp, &rp_locks, frags, msg, am_undefined
-#ifdef USE_VM_PROBES
-		       , NIL
-#endif
-		       );
+    erts_queue_message(rp, &rp_locks, frags, msg, am_undefined);
     if (c_p == rp)
 	rp_locks &= ~ERTS_PROC_LOCK_MAIN;
     if (rp_locks)
 	erts_smp_proc_unlock(rp, rp_locks);
     if (!scheduler)
-	erts_smp_proc_dec_refc(rp);
+	erts_proc_dec_refc(rp);
     if (flush_me) {
 	cache_env(env);
     }
@@ -447,7 +445,7 @@ int enif_is_list(ErlNifEnv* env, ERL_NIF_TERM term)
 
 int enif_is_exception(ErlNifEnv* env, ERL_NIF_TERM term)
 {
-    return term == THE_NON_VALUE;
+    return env->exception_thrown && term == THE_NON_VALUE;
 }
 
 int enif_is_number(ErlNifEnv* env, ERL_NIF_TERM term)
@@ -551,9 +549,7 @@ int enif_alloc_binary(size_t size, ErlNifBinary* bin)
     if (refbin == NULL) {
 	return 0; /* The NIF must take action */
     }
-    refbin->flags = BIN_FLAG_DRV; /* BUGBUG: Flag? */
     erts_refc_init(&refbin->refc, 1);
-    refbin->orig_size = (SWord) size;
 
     bin->size = size;
     bin->data = (unsigned char*) refbin->orig_bytes;
@@ -573,7 +569,6 @@ int enif_realloc_binary(ErlNifBinary* bin, size_t size)
 	if (!newbin) {
 	    return 0;
 	}    
-	newbin->orig_size = size;
 	bin->ref_bin = newbin;
 	bin->data = (unsigned char*) newbin->orig_bytes;
 	bin->size = size;
@@ -742,7 +737,22 @@ Eterm enif_make_sub_binary(ErlNifEnv* env, ERL_NIF_TERM bin_term,
 
 Eterm enif_make_badarg(ErlNifEnv* env)
 {
-    BIF_ERROR(env->proc, BADARG);
+    return enif_raise_exception(env, am_badarg);
+}
+
+Eterm enif_raise_exception(ErlNifEnv* env, ERL_NIF_TERM reason)
+{
+    env->exception_thrown = 1;
+    env->proc->fvalue = reason;
+    BIF_ERROR(env->proc, EXC_ERROR);
+}
+
+int enif_has_pending_exception(ErlNifEnv* env, ERL_NIF_TERM* reason)
+{
+    if (env->exception_thrown && reason != NULL) {
+	*reason = env->proc->fvalue;
+    }
+    return env->exception_thrown;
 }
 
 int enif_get_atom(ErlNifEnv* env, Eterm atom, char* buf, unsigned len,
@@ -964,8 +974,12 @@ ERL_NIF_TERM enif_make_uint64(ErlNifEnv* env, ErlNifUInt64 i)
 
 ERL_NIF_TERM enif_make_double(ErlNifEnv* env, double d)
 {
-    Eterm* hp = alloc_heap(env,FLOAT_SIZE_OBJECT);
+    Eterm* hp;
     FloatDef f;
+
+    if (!erts_isfinite(d))
+        return enif_make_badarg(env);
+    hp = alloc_heap(env,FLOAT_SIZE_OBJECT);
     f.fd = d;
     PUT_DOUBLE(f, hp);
     return make_float(hp);
@@ -978,6 +992,8 @@ ERL_NIF_TERM enif_make_atom(ErlNifEnv* env, const char* name)
 
 ERL_NIF_TERM enif_make_atom_len(ErlNifEnv* env, const char* name, size_t len)
 {
+    if (len > MAX_ATOM_CHARACTERS)
+        return enif_make_badarg(env);
     return erts_atom_put((byte*)name, len, ERTS_ATOM_ENC_LATIN1, 1);
 }
 
@@ -991,6 +1007,8 @@ int enif_make_existing_atom_len(ErlNifEnv* env, const char* name, size_t len,
 				ERL_NIF_TERM* atom, ErlNifCharEncoding encoding)
 {
     ASSERT(encoding == ERL_NIF_LATIN1);
+    if (len > MAX_ATOM_CHARACTERS)
+        return 0;
     return erts_atom_get(name, len, atom, ERTS_ATOM_ENC_LATIN1);
 }
 
@@ -1529,12 +1547,13 @@ int enif_consume_timeslice(ErlNifEnv* env, int percent)
  * NIF exports need a few more items than the Export struct provides,
  * including the erl_module_nif* and a NIF function pointer, so the
  * NifExport below adds those. The Export member must be first in the
- * struct. The saved_mfa, saved_argc, nif_level, alloced_argv_sz and argv
- * members are used to track the MFA and arguments of the top NIF in case a
- * chain of one or more enif_schedule_nif() calls results in an exception,
- * since in that case the original MFA and registers have to be restored
- * before returning to Erlang to ensure stacktrace information associated
- * with the exception is correct.
+ * struct. The saved_mfa, exception_thrown, saved_argc, rootset_extra, and
+ * rootset members are used to track the MFA, any pending exception, and
+ * arguments of the top NIF in case a chain of one or more
+ * enif_schedule_nif() calls results in an exception, since in that case
+ * the original MFA and registers have to be restored before returning to
+ * Erlang to ensure stacktrace information associated with the exception is
+ * correct.
  */
 typedef ERL_NIF_TERM (*NativeFunPtr)(ErlNifEnv*, int, const ERL_NIF_TERM[]);
 
@@ -1543,25 +1562,28 @@ typedef struct {
     struct erl_module_nif* m;
     NativeFunPtr fp;
     Eterm saved_mfa[3];
+    int exception_thrown;
     int saved_argc;
-    int alloced_argv_sz;
-    Eterm argv[1];
+    int rootset_extra;
+    Eterm rootset[1];
 } NifExport;
 
 /*
  * If a process has saved arguments, they need to be part of the GC
  * rootset. The function below is called from setup_rootset() in
- * erl_gc.c. This function is declared in erl_process.h.
+ * erl_gc.c. This function is declared in erl_process.h. Any exception term
+ * saved in the NifExport is also made part of the GC rootset here; it
+ * always resides in rootset[0].
  */
 int
 erts_setup_nif_gc(Process* proc, Eterm** objv, int* nobj)
 {
     NifExport* ep = (NifExport*) ERTS_PROC_GET_NIF_TRAP_EXPORT(proc);
-    int gc = (ep && ep->saved_argc > 0);
+    int gc = ep && (ep->saved_argc > 0 || ep->rootset[0] != NIL);
 
     if (gc) {
-	*objv = ep->argv;
-	*nobj = ep->saved_argc;
+	*objv = ep->rootset;
+	*nobj = 1 + ep->saved_argc;
     }
     return gc;
 }
@@ -1573,14 +1595,14 @@ static NifExport*
 allocate_nif_sched_data(Process* proc, int argc)
 {
     NifExport* ep;
-    size_t argv_extra, total;
+    size_t total;
     int i;
 
-    argv_extra = argc > 1 ? sizeof(Eterm)*(argc-1) : 0;
-    total = sizeof(NifExport) + argv_extra;
+    total = sizeof(NifExport) + argc*sizeof(Eterm);
     ep = erts_alloc(ERTS_ALC_T_NIF_TRAP_EXPORT, total);
     sys_memset((void*) ep, 0, total);
-    ep->alloced_argv_sz = argc;
+    ep->rootset_extra = argc;
+    ep->rootset[0] = NIL;
     for (i=0; i<ERTS_NUM_CODE_IX; i++) {
 	ep->exp.addressv[i] = &ep->exp.code[3];
     }
@@ -1621,15 +1643,22 @@ init_nif_sched_data(ErlNifEnv* env, NativeFunPtr direct_fp, NativeFunPtr indirec
     ep = (NifExport*) ERTS_PROC_GET_NIF_TRAP_EXPORT(proc);
     if (!ep)
 	ep = allocate_nif_sched_data(proc, argc);
-    else if (need_save && ep->alloced_argv_sz < argc) {
+    else if (need_save && ep->rootset_extra < argc) {
 	NifExport* new_ep = allocate_nif_sched_data(proc, argc);
 	destroy_nif_export(ep);
 	ep = new_ep;
     }
+    if (env->exception_thrown) {
+	ep->exception_thrown = 1;
+	ep->rootset[0] = env->proc->fvalue;
+    } else {
+	ep->exception_thrown = 0;
+	ep->rootset[0] = NIL;
+    }
     ERTS_VBUMP_ALL_REDS(proc);
     for (i = 0; i < argc; i++) {
 	if (need_save)
-	    ep->argv[i] = reg[i];
+	    ep->rootset[i+1] = reg[i];
 	reg[i] = (Eterm) argv[i];
     }
     if (need_save) {
@@ -1665,7 +1694,7 @@ restore_nif_mfa(Process* proc, NifExport* ep, int exception)
     proc->current[2] = ep->saved_mfa[2];
     if (exception)
 	for (i = 0; i < ep->saved_argc; i++)
-	    reg[i] = ep->argv[i];
+	    reg[i] = ep->rootset[i+1];
     ep->saved_argc = 0;
     ep->saved_mfa[0] = THE_NON_VALUE;
 }
@@ -1690,6 +1719,7 @@ dirty_nif_finalizer(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
     ASSERT(!ERTS_SCHEDULER_IS_DIRTY(env->proc->scheduler_data));
     ep = (NifExport*) ERTS_PROC_GET_NIF_TRAP_EXPORT(proc);
     ASSERT(ep);
+    ASSERT(!ep->exception_thrown);
     if (ep->fp)
 	restore_nif_mfa(proc, ep, 0);
     return argv[0];
@@ -1707,9 +1737,10 @@ dirty_nif_exception(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
     ASSERT(!ERTS_SCHEDULER_IS_DIRTY(env->proc->scheduler_data));
     ep = (NifExport*) ERTS_PROC_GET_NIF_TRAP_EXPORT(proc);
     ASSERT(ep);
+    ASSERT(ep->exception_thrown);
     if (ep->fp)
 	restore_nif_mfa(proc, ep, 1);
-    return enif_make_badarg(env);
+    return enif_raise_exception(env, ep->rootset[0]);
 }
 
 /*
@@ -1754,14 +1785,13 @@ execute_dirty_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
     ASSERT(ep);
     if (ep->fp)
 	fp = NULL;
-    if (is_non_value(result)) {
+    if (is_non_value(result) || env->exception_thrown) {
 	if (proc->freason != TRAP) {
-	    ASSERT(proc->freason == BADARG);
 	    return init_nif_sched_data(env, dirty_nif_exception, fp, 0, argc, argv);
 	} else {
 	    if (ep->fp == NULL)
 		restore_nif_mfa(proc, ep, 1);
-	    return result;
+	    return THE_NON_VALUE;
 	}
     }
     else
@@ -1835,6 +1865,7 @@ execute_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
     NifExport* ep;
     ERL_NIF_TERM result;
 
+    ASSERT(!env->exception_thrown);
     ep = (NifExport*) ERTS_PROC_GET_NIF_TRAP_EXPORT(proc);
     ASSERT(ep);
     ep->fp = NULL;
@@ -1847,7 +1878,7 @@ execute_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
      * which case we need to restore the original NIF MFA.
      */
     if (ep->fp == NULL)
-	restore_nif_mfa(proc, ep, is_non_value(result) && proc->freason != TRAP);
+	restore_nif_mfa(proc, ep, env->exception_thrown);
     return result;
 }
 
@@ -1913,29 +1944,33 @@ int enif_is_map(ErlNifEnv* env, ERL_NIF_TERM term)
 
 int enif_get_map_size(ErlNifEnv* env, ERL_NIF_TERM term, size_t *size)
 {
-    if (is_map(term)) {
-	map_t *mp;
-	mp    = (map_t*)map_val(term);
-	*size = map_get_size(mp);
+    if (is_flatmap(term)) {
+	flatmap_t *mp;
+	mp    = (flatmap_t*)flatmap_val(term);
+	*size = flatmap_get_size(mp);
 	return 1;
     }
+    else if (is_hashmap(term)) {
+        *size = hashmap_size(term);
+        return 1;
+    }
     return 0;
 }
 
 ERL_NIF_TERM enif_make_new_map(ErlNifEnv* env)
 {
-    Eterm* hp = alloc_heap(env,MAP_HEADER_SIZE+1);
+    Eterm* hp = alloc_heap(env,MAP_HEADER_FLATMAP_SZ+1);
     Eterm tup;
-    map_t *mp;
+    flatmap_t *mp;
 
     tup   = make_tuple(hp);
     *hp++ = make_arityval(0);
-    mp    = (map_t*)hp;
-    mp->thing_word = MAP_HEADER;
+    mp    = (flatmap_t*)hp;
+    mp->thing_word = MAP_HEADER_FLATMAP;
     mp->size = 0;
     mp->keys = tup;
 
-    return make_map(mp);
+    return make_flatmap(mp);
 }
 
 int enif_make_map_put(ErlNifEnv* env,
@@ -1944,7 +1979,7 @@ int enif_make_map_put(ErlNifEnv* env,
 		      Eterm value,
 		      Eterm *map_out)
 {
-    if (is_not_map(map_in)) {
+    if (!is_map(map_in)) {
 	return 0;
     }
     flush_env(env);
@@ -1958,10 +1993,16 @@ int enif_get_map_value(ErlNifEnv* env,
 		       Eterm key,
 		       Eterm *value)
 {
-    if (is_not_map(map)) {
+    const Eterm *ret;
+    if (!is_map(map)) {
 	return 0;
     }
-    return erts_maps_get(key, map, value);
+    ret = erts_maps_get(key, map);
+    if (ret) {
+        *value = *ret;
+        return 1;
+    }
+    return 0;
 }
 
 int enif_make_map_update(ErlNifEnv* env,
@@ -1971,7 +2012,7 @@ int enif_make_map_update(ErlNifEnv* env,
 			 Eterm *map_out)
 {
     int res;
-    if (is_not_map(map_in)) {
+    if (!is_map(map_in)) {
 	return 0;
     }
 
@@ -1987,7 +2028,7 @@ int enif_make_map_remove(ErlNifEnv* env,
 			 Eterm *map_out)
 {
     int res;
-    if (is_not_map(map_in)) {
+    if (!is_map(map_in)) {
 	return 0;
     }
     flush_env(env);
@@ -2001,13 +2042,13 @@ int enif_map_iterator_create(ErlNifEnv *env,
 			     ErlNifMapIterator *iter,
 			     ErlNifMapIteratorEntry entry)
 {
-    if (is_map(map)) {
-	map_t *mp = (map_t*)map_val(map);
+    if (is_flatmap(map)) {
+	flatmap_t *mp = (flatmap_t*)flatmap_val(map);
 	size_t offset;
 
 	switch (entry) {
-	    case ERL_NIF_MAP_ITERATOR_HEAD: offset = 0; break;
-	    case ERL_NIF_MAP_ITERATOR_TAIL: offset = map_get_size(mp) - 1; break;
+	    case ERL_NIF_MAP_ITERATOR_FIRST: offset = 0; break;
+	    case ERL_NIF_MAP_ITERATOR_LAST: offset = flatmap_get_size(mp) - 1; break;
 	    default: goto error;
 	}
 
@@ -2016,14 +2057,37 @@ int enif_map_iterator_create(ErlNifEnv *env,
 	 */
 
 	iter->map     = map;
-	iter->ks      = ((Eterm *)map_get_keys(mp)) + offset;
-	iter->vs      = ((Eterm *)map_get_values(mp)) + offset;
-	iter->t_limit = map_get_size(mp) + 1;
+	iter->u.flat.ks = ((Eterm *)flatmap_get_keys(mp)) + offset;
+	iter->u.flat.vs = ((Eterm *)flatmap_get_values(mp)) + offset;
+	iter->size    = flatmap_get_size(mp);
 	iter->idx     = offset + 1;
 
 	return 1;
     }
-
+    else if (is_hashmap(map)) {
+        iter->map = map;
+        iter->size = hashmap_size(map);
+        iter->u.hash.wstack = erts_alloc(ERTS_ALC_T_NIF, sizeof(ErtsDynamicWStack));
+        WSTACK_INIT(iter->u.hash.wstack, ERTS_ALC_T_NIF);
+
+        switch (entry) {
+	    case ERL_NIF_MAP_ITERATOR_FIRST:
+                iter->idx = 1;
+                hashmap_iterator_init(&iter->u.hash.wstack->ws, map, 0);
+                iter->u.hash.kv = hashmap_iterator_next(&iter->u.hash.wstack->ws);
+                break;
+	    case ERL_NIF_MAP_ITERATOR_LAST:
+                iter->idx = hashmap_size(map);
+                hashmap_iterator_init(&iter->u.hash.wstack->ws, map, 1);
+                iter->u.hash.kv = hashmap_iterator_prev(&iter->u.hash.wstack->ws);
+                break;
+	    default:
+                goto error;
+	}
+        ASSERT(!!iter->u.hash.kv == (iter->idx >= 1 &&
+                                     iter->idx <= iter->size));
+        return 1;
+    }
 error:
 #ifdef DEBUG
     iter->map = THE_NON_VALUE;
@@ -2033,48 +2097,97 @@ error:
 
 void enif_map_iterator_destroy(ErlNifEnv *env, ErlNifMapIterator *iter)
 {
-    /* not used */
+    if (is_hashmap(iter->map)) {
+        WSTACK_DESTROY(iter->u.hash.wstack->ws);
+        erts_free(ERTS_ALC_T_NIF, iter->u.hash.wstack);
+    }
+    else
+        ASSERT(is_flatmap(iter->map));
+
 #ifdef DEBUG
     iter->map = THE_NON_VALUE;
 #endif
-
 }
 
 int enif_map_iterator_is_tail(ErlNifEnv *env, ErlNifMapIterator *iter)
 {
-    ASSERT(iter && is_map(iter->map));
-    ASSERT(iter->idx >= 0 && (iter->idx <= map_get_size(map_val(iter->map)) + 1));
-    return (iter->t_limit == 1 || iter->idx == iter->t_limit);
+    ASSERT(iter);
+    if (is_flatmap(iter->map)) {
+        ASSERT(iter->idx >= 0);
+        ASSERT(iter->idx <= flatmap_get_size(flatmap_val(iter->map)) + 1);
+        return (iter->size == 0 || iter->idx > iter->size);
+    }
+    else {
+        ASSERT(is_hashmap(iter->map));
+        return iter->idx > iter->size;
+    }
 }
 
 int enif_map_iterator_is_head(ErlNifEnv *env, ErlNifMapIterator *iter)
 {
-    ASSERT(iter && is_map(iter->map));
-    ASSERT(iter->idx >= 0 && (iter->idx <= map_get_size(map_val(iter->map)) + 1));
-    return (iter->t_limit == 1 || iter->idx == 0);
+    ASSERT(iter);
+    if (is_flatmap(iter->map)) {
+        ASSERT(iter->idx >= 0);
+        ASSERT(iter->idx <= flatmap_get_size(flatmap_val(iter->map)) + 1);
+        return (iter->size == 0 || iter->idx == 0);
+    }
+    else {
+        ASSERT(is_hashmap(iter->map));
+        return iter->idx == 0;
+    }
 }
 
 
 int enif_map_iterator_next(ErlNifEnv *env, ErlNifMapIterator *iter)
 {
-    ASSERT(iter && is_map(iter->map));
-    if (iter->idx < iter->t_limit) {
-	iter->idx++;
-	iter->ks++;
-	iter->vs++;
+    ASSERT(iter);
+    if (is_flatmap(iter->map)) {
+        if (iter->idx <= iter->size) {
+            iter->idx++;
+            iter->u.flat.ks++;
+            iter->u.flat.vs++;
+        }
+        return (iter->idx <= iter->size);
+    }
+    else {
+        ASSERT(is_hashmap(iter->map));
+
+        if (iter->idx <= hashmap_size(iter->map)) {
+            if (iter->idx < 1) {
+                hashmap_iterator_init(&iter->u.hash.wstack->ws, iter->map, 0);
+            }
+            iter->u.hash.kv = hashmap_iterator_next(&iter->u.hash.wstack->ws);
+            iter->idx++;
+            ASSERT(!!iter->u.hash.kv == (iter->idx <= iter->size));
+        }
+        return iter->idx <= iter->size;
     }
-    return (iter->idx != iter->t_limit);
 }
 
 int enif_map_iterator_prev(ErlNifEnv *env, ErlNifMapIterator *iter)
 {
-    ASSERT(iter && is_map(iter->map));
-    if (iter->idx > 0) {
-	iter->idx--;
-	iter->ks--;
-	iter->vs--;
+    ASSERT(iter);
+    if (is_flatmap(iter->map)) {
+        if (iter->idx > 0) {
+            iter->idx--;
+            iter->u.flat.ks--;
+            iter->u.flat.vs--;
+        }
+        return iter->idx > 0;
+    }
+    else {
+        ASSERT(is_hashmap(iter->map));
+
+        if (iter->idx > 0) {
+            if (iter->idx > iter->size) {
+                hashmap_iterator_init(&iter->u.hash.wstack->ws, iter->map, 1);
+            }
+            iter->u.hash.kv = hashmap_iterator_prev(&iter->u.hash.wstack->ws);
+            iter->idx--;
+            ASSERT(!!iter->u.hash.kv == (iter->idx > 0));
+        }
+        return iter->idx > 0;
     }
-    return (iter->idx > 0);
 }
 
 int enif_map_iterator_get_pair(ErlNifEnv *env,
@@ -2082,15 +2195,25 @@ int enif_map_iterator_get_pair(ErlNifEnv *env,
 			       Eterm *key,
 			       Eterm *value)
 {
-    ASSERT(iter && is_map(iter->map));
-    if (iter->idx > 0 && iter->idx < iter->t_limit) {
-	ASSERT(iter->ks >= map_get_keys(map_val(iter->map)) &&
-	       iter->ks  < (map_get_keys(map_val(iter->map)) + map_get_size(map_val(iter->map))));
-	ASSERT(iter->vs >= map_get_values(map_val(iter->map)) &&
-	       iter->vs  < (map_get_values(map_val(iter->map)) + map_get_size(map_val(iter->map))));
-	*key   = *(iter->ks);
-	*value = *(iter->vs);
-	return 1;
+    ASSERT(iter);
+    if (is_flatmap(iter->map)) {
+        if (iter->idx > 0 && iter->idx <= iter->size) {
+            ASSERT(iter->u.flat.ks >= flatmap_get_keys(flatmap_val(iter->map)) &&
+                   iter->u.flat.ks  < (flatmap_get_keys(flatmap_val(iter->map)) + flatmap_get_size(flatmap_val(iter->map))));
+            ASSERT(iter->u.flat.vs >= flatmap_get_values(flatmap_val(iter->map)) &&
+                   iter->u.flat.vs  < (flatmap_get_values(flatmap_val(iter->map)) + flatmap_get_size(flatmap_val(iter->map))));
+            *key   = *(iter->u.flat.ks);
+            *value = *(iter->u.flat.vs);
+            return 1;
+        }
+    }
+    else {
+        ASSERT(is_hashmap(iter->map));
+        if (iter->idx > 0 && iter->idx <= iter->size) {
+            *key   = CAR(iter->u.hash.kv);
+            *value = CDR(iter->u.hash.kv);
+            return 1;
+        }
     }
     return 0;
 }
diff --git a/erts/emulator/beam/erl_nif.h b/erts/emulator/beam/erl_nif.h
index 849024453c..af806736fd 100644
--- a/erts/emulator/beam/erl_nif.h
+++ b/erts/emulator/beam/erl_nif.h
@@ -46,9 +46,10 @@
 **           remove enif_schedule_dirty_nif, enif_schedule_dirty_nif_finalizer, enif_dirty_nif_finalizer
 **           add ErlNifEntry options
 **           add ErlNifFunc flags
+** 2.8: 18.0 add enif_has_pending_exception
 */
 #define ERL_NIF_MAJOR_VERSION 2
-#define ERL_NIF_MINOR_VERSION 7
+#define ERL_NIF_MINOR_VERSION 8
 
 /*
  * The emulator will refuse to load a nif-lib with a major version
@@ -201,16 +202,28 @@ typedef enum
 typedef struct /* All fields all internal and may change */
 {
     ERL_NIF_TERM map;
-    ERL_NIF_UINT t_limit;
+    ERL_NIF_UINT size;
     ERL_NIF_UINT idx;
-    ERL_NIF_TERM *ks;
-    ERL_NIF_TERM *vs;
+    union {
+        struct {
+            ERL_NIF_TERM *ks;
+            ERL_NIF_TERM *vs;
+        }flat;
+        struct {
+            struct ErtsDynamicWStack_* wstack;
+            ERL_NIF_TERM* kv;
+        }hash;
+    }u;
     void* __spare__[2]; /* for future additions to be ABI compatible (same struct size) */
 } ErlNifMapIterator;
 
 typedef enum {
-    ERL_NIF_MAP_ITERATOR_HEAD = 1,
-    ERL_NIF_MAP_ITERATOR_TAIL = 2
+    ERL_NIF_MAP_ITERATOR_FIRST = 1,
+    ERL_NIF_MAP_ITERATOR_LAST = 2,
+
+    /* deprecated synonyms (undocumented in 17 and 18-rc) */
+    ERL_NIF_MAP_ITERATOR_HEAD = ERL_NIF_MAP_ITERATOR_FIRST,
+    ERL_NIF_MAP_ITERATOR_TAIL = ERL_NIF_MAP_ITERATOR_LAST
 } ErlNifMapIteratorEntry;
 
 #if (defined(__WIN32__) || defined(_WIN32) || defined(_WIN32_))
diff --git a/erts/emulator/beam/erl_nif_api_funcs.h b/erts/emulator/beam/erl_nif_api_funcs.h
index 630cefae93..e38a016958 100644
--- a/erts/emulator/beam/erl_nif_api_funcs.h
+++ b/erts/emulator/beam/erl_nif_api_funcs.h
@@ -156,6 +156,8 @@ ERL_NIF_API_FUNC_DECL(int, enif_map_iterator_next, (ErlNifEnv *env, ErlNifMapIte
 ERL_NIF_API_FUNC_DECL(int, enif_map_iterator_prev, (ErlNifEnv *env, ErlNifMapIterator *iter));
 ERL_NIF_API_FUNC_DECL(int, enif_map_iterator_get_pair, (ErlNifEnv *env, ErlNifMapIterator *iter, ERL_NIF_TERM *key, ERL_NIF_TERM *value));
 ERL_NIF_API_FUNC_DECL(ERL_NIF_TERM,enif_schedule_nif,(ErlNifEnv*,const char*,int,ERL_NIF_TERM (*)(ErlNifEnv*,int,const ERL_NIF_TERM[]),int,const ERL_NIF_TERM[]));
+ERL_NIF_API_FUNC_DECL(int, enif_has_pending_exception, (ErlNifEnv *env, ERL_NIF_TERM* reason));
+ERL_NIF_API_FUNC_DECL(ERL_NIF_TERM, enif_raise_exception, (ErlNifEnv *env, ERL_NIF_TERM reason));
 
 /*
 ** ADD NEW ENTRIES HERE (before this comment) !!!
@@ -305,6 +307,8 @@ ERL_NIF_API_FUNC_DECL(int,enif_is_on_dirty_scheduler,(ErlNifEnv*));
 #  define enif_map_iterator_prev ERL_NIF_API_FUNC_MACRO(enif_map_iterator_prev)
 #  define enif_map_iterator_get_pair ERL_NIF_API_FUNC_MACRO(enif_map_iterator_get_pair)
 #  define enif_schedule_nif ERL_NIF_API_FUNC_MACRO(enif_schedule_nif)
+#  define enif_has_pending_exception ERL_NIF_API_FUNC_MACRO(enif_has_pending_exception)
+#  define enif_raise_exception ERL_NIF_API_FUNC_MACRO(enif_raise_exception)
 
 /*
 ** ADD NEW ENTRIES HERE (before this comment)
diff --git a/erts/emulator/beam/erl_node_tables.c b/erts/emulator/beam/erl_node_tables.c
index c6d136f951..6d827c6bda 100644
--- a/erts/emulator/beam/erl_node_tables.c
+++ b/erts/emulator/beam/erl_node_tables.c
@@ -705,7 +705,7 @@ erts_set_this_node(Eterm sysname, Uint creation)
     erts_this_node->sysname = sysname;
     erts_this_node->creation = creation;
     erts_this_node_sysname = erts_this_node_sysname_BUFFER;
-    erts_snprintf(erts_this_node_sysname, sizeof(erts_this_node_sysname),
+    erts_snprintf(erts_this_node_sysname, sizeof(erts_this_node_sysname_BUFFER),
                   "%T", sysname);
     (void) hash_put(&erts_node_table, (void *) erts_this_node);
 
@@ -794,7 +794,7 @@ void erts_init_node_tables(void)
     erts_this_node->creation			= 0;
     erts_this_node->dist_entry			= erts_this_dist_entry;
     erts_this_node_sysname = erts_this_node_sysname_BUFFER;
-    erts_snprintf(erts_this_node_sysname, sizeof(erts_this_node_sysname),
+    erts_snprintf(erts_this_node_sysname, sizeof(erts_this_node_sysname_BUFFER),
                   "%T", erts_this_node->sysname);
 
     (void) hash_put(&erts_node_table, (void *) erts_this_node);
@@ -1469,7 +1469,7 @@ setup_reference_table(void)
     erts_db_foreach_table(insert_ets_table, NULL);
 
     /* Insert all bif timers */
-    erts_bif_timer_foreach(insert_bif_timer, NULL);
+    erts_debug_bif_timer_foreach(insert_bif_timer, NULL);
 
     /* Insert node table (references to dist) */
     hash_foreach(&erts_node_table, insert_erl_node, NULL);
diff --git a/erts/emulator/beam/erl_port.h b/erts/emulator/beam/erl_port.h
index ad3f104a68..3920fae2d9 100644
--- a/erts/emulator/beam/erl_port.h
+++ b/erts/emulator/beam/erl_port.h
@@ -350,6 +350,7 @@ int erts_lc_is_port_locked(Port *);
 ERTS_GLB_INLINE void erts_port_inc_refc(Port *prt);
 ERTS_GLB_INLINE void erts_port_dec_refc(Port *prt);
 ERTS_GLB_INLINE void erts_port_add_refc(Port *prt, Sint32 add_refc);
+ERTS_GLB_INLINE Sint erts_port_read_refc(Port *prt);
 
 ERTS_GLB_INLINE int erts_smp_port_trylock(Port *prt);
 ERTS_GLB_INLINE void erts_smp_port_lock(Port *prt);
@@ -359,37 +360,26 @@ ERTS_GLB_INLINE void erts_smp_port_unlock(Port *prt);
 
 ERTS_GLB_INLINE void erts_port_inc_refc(Port *prt)
 {
-#ifdef ERTS_SMP
-    erts_ptab_inc_refc(&prt->common);
-#else
-    erts_atomic32_inc_nob(&prt->refc);
-#endif
+    erts_ptab_atmc_inc_refc(&prt->common);
 }
 
 ERTS_GLB_INLINE void erts_port_dec_refc(Port *prt)
 {
-#ifdef ERTS_SMP
-    int referred = erts_ptab_dec_test_refc(&prt->common);
+    int referred = erts_ptab_atmc_dec_test_refc(&prt->common);
     if (!referred)
 	erts_port_free(prt);
-#else
-    int refc = erts_atomic32_dec_read_nob(&prt->refc);
-    if (refc == 0)
-	erts_port_free(prt);	
-#endif
 }
 
 ERTS_GLB_INLINE void erts_port_add_refc(Port *prt, Sint32 add_refc)
 {
-#ifdef ERTS_SMP
-    int referred = erts_ptab_add_test_refc(&prt->common, add_refc);
+    int referred = erts_ptab_atmc_add_test_refc(&prt->common, add_refc);
     if (!referred)
 	erts_port_free(prt);
-#else
-    int refc = erts_atomic32_add_read_nob(&prt->refc, add_refc);
-    if (refc == 0)
-	erts_port_free(prt);	
-#endif
+}
+
+ERTS_GLB_INLINE Sint erts_port_read_refc(Port *prt)
+{
+    return erts_ptab_atmc_read_refc(&prt->common);
 }
 
 ERTS_GLB_INLINE int
diff --git a/erts/emulator/beam/erl_port_task.c b/erts/emulator/beam/erl_port_task.c
index 2aa0a27197..c701737e26 100644
--- a/erts/emulator/beam/erl_port_task.c
+++ b/erts/emulator/beam/erl_port_task.c
@@ -1646,6 +1646,7 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
     erts_aint32_t state;
     int active;
     Uint64 start_time = 0;
+    ErtsSchedulerData *esdp = runq->scheduler;
 
     ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
 
@@ -1662,7 +1663,6 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
     *curr_port_pp = pp;
     
     if (erts_sched_stat.enabled) {
-	ErtsSchedulerData *esdp = erts_get_scheduler_data();
 	Uint old = ERTS_PORT_SCHED_ID(pp, esdp->no);
 	int migrated = old && old != esdp->no;
 
@@ -1718,11 +1718,16 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
 	switch (ptp->type) {
 	case ERTS_PORT_TASK_TIMEOUT:
 	    reset_handle(ptp);
-	    reds = ERTS_PORT_REDS_TIMEOUT;
-	    if (!(state & ERTS_PORT_SFLGS_DEAD)) {
-                DTRACE_DRIVER(driver_timeout, pp);
-		(*pp->drv_ptr->timeout)((ErlDrvData) pp->drv_data);
-            }
+	    if (!ERTS_PTMR_IS_TIMED_OUT(pp))
+		reds = 0;
+	    else {
+		ERTS_PTMR_CLEAR(pp);
+		reds = ERTS_PORT_REDS_TIMEOUT;
+		if (!(state & ERTS_PORT_SFLGS_DEAD)) {
+		    DTRACE_DRIVER(driver_timeout, pp);
+		    (*pp->drv_ptr->timeout)((ErlDrvData) pp->drv_data);
+		}
+	    }
 	    break;
 	case ERTS_PORT_TASK_INPUT:
 	    reds = ERTS_PORT_REDS_INPUT;
@@ -1879,7 +1884,7 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
     runq->scheduler->reductions += reds;
 
     ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
-    ERTS_PORT_REDUCTIONS_EXECUTED(runq, reds);
+    ERTS_PORT_REDUCTIONS_EXECUTED(esdp, runq, reds);
 
     return res;
 }
diff --git a/erts/emulator/beam/erl_printf_term.c b/erts/emulator/beam/erl_printf_term.c
index d18760dc43..e0dfbd31b8 100644
--- a/erts/emulator/beam/erl_printf_term.c
+++ b/erts/emulator/beam/erl_printf_term.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2005-2013. All Rights Reserved.
+ * Copyright Ericsson AB 2005-2014. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -25,6 +25,7 @@
 #include "sys.h"
 #include "big.h"
 #include "erl_map.h"
+#include "erl_binary.h"
 
 #define PRINT_CHAR(CNT, FN, ARG, C)					\
 do {									\
@@ -138,6 +139,25 @@ is_printable_string(Eterm list, Eterm* base)
     return 0;
 }
 
+static int is_printable_ascii(byte* bytep, Uint bytesize, Uint bitoffs)
+{
+    if (!bitoffs) {
+	while (bytesize--) {
+	    if (*bytep < ' ' || *bytep >= 127)
+		return 0;
+	    bytep++;
+	}
+    } else {
+	while (bytesize--) {
+	    byte octet = (bytep[0] << bitoffs) | (bytep[1] >> (8-bitoffs));
+	    if (octet < ' ' || octet >= 127)
+		return 0;
+	    bytep++;
+	}
+    }
+    return 1;
+}
+
 /* print a atom doing what quoting is necessary */
 static int print_atom_name(fmtfn_t fn, void* arg, Eterm atom, long *dcount)
 {
@@ -227,6 +247,17 @@ static int print_atom_name(fmtfn_t fn, void* arg, Eterm atom, long *dcount)
 #define PRT_PATCH_FUN_SIZE     ((Eterm) 7)
 #define PRT_LAST_ARRAY_ELEMENT ((Eterm) 8) /* Note! Must be last... */
 
+#if 0
+static char *format_binary(Uint16 x, char *b) {
+    int z;
+    b[16] = '\0';
+    for (z = 0; z < 16; z++) { 
+	b[15-z] = ((x>>z) & 0x1) ? '1' : '0'; 
+    }
+    return b;
+}
+#endif
+
 static int
 print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount,
 	   Eterm* obj_base) /* ignored if !HALFWORD_HEAP */
@@ -283,13 +314,9 @@ print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount,
 		    tl = CDR(cons);
 		    if (is_not_nil(tl)) {
 			if (is_list(tl)) {
-			    WSTACK_PUSH(s, tl);
-			    WSTACK_PUSH(s, PRT_ONE_CONS);
-			    WSTACK_PUSH(s, PRT_COMMA);
+			    WSTACK_PUSH3(s, tl, PRT_ONE_CONS, PRT_COMMA);
 			} else {
-			    WSTACK_PUSH(s, tl);
-			    WSTACK_PUSH(s, PRT_TERM);
-			    WSTACK_PUSH(s, PRT_BAR);
+			    WSTACK_PUSH3(s, tl, PRT_TERM, PRT_BAR);
 			}
 		    }
 		}
@@ -299,9 +326,7 @@ print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount,
 		break;
 	    default:		/* PRT_LAST_ARRAY_ELEMENT+1 and upwards */
 		obj = *popped.ptr;
-	        WSTACK_PUSH(s, (UWord) (popped.ptr + 1));
-		WSTACK_PUSH(s, val-1);
-		WSTACK_PUSH(s, PRT_COMMA);
+	        WSTACK_PUSH3(s, (UWord) (popped.ptr + 1), val-1, PRT_COMMA);
 		break;
 	    }
 	    break;
@@ -431,8 +456,7 @@ print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount,
 	    WSTACK_PUSH(s,PRT_CLOSE_TUPLE);
 	    ++nobj;
 	    if (i > 0) {
-		WSTACK_PUSH(s, (UWord) nobj);
-		WSTACK_PUSH(s, PRT_LAST_ARRAY_ELEMENT+i-1);
+		WSTACK_PUSH2(s, (UWord) nobj, PRT_LAST_ARRAY_ELEMENT+i-1);
 	    }
 	    break;
 	case FLOAT_DEF: {
@@ -446,13 +470,65 @@ print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount,
 		PRINT_STRING(res, fn, arg, "#MatchState");
 	    }
 	    else {
-		ProcBin* pb = (ProcBin *) binary_val(wobj);
-		if (pb->size == 1)
-		    PRINT_STRING(res, fn, arg, "<<1 byte>>");
-		else {
+		byte* bytep;
+		Uint bytesize = binary_size_rel(obj,obj_base);
+		Uint bitoffs;
+		Uint bitsize;
+		byte octet;
+		ERTS_GET_BINARY_BYTES_REL(obj, bytep, bitoffs, bitsize, obj_base);
+
+		if (bitsize || !bytesize
+		    || !is_printable_ascii(bytep, bytesize, bitoffs)) {
+		    int is_first = 1;
 		    PRINT_STRING(res, fn, arg, "<<");
-		    PRINT_UWORD(res, fn, arg, 'u', 0, 1, (ErlPfUWord) pb->size);
-		    PRINT_STRING(res, fn, arg, " bytes>>");
+		    while (bytesize) {
+			if (is_first)
+			    is_first = 0;
+			else
+			    PRINT_CHAR(res, fn, arg, ',');
+			if (bitoffs)
+			    octet = (bytep[0] << bitoffs) | (bytep[1] >> (8-bitoffs));
+			else
+			    octet = bytep[0];
+			PRINT_UWORD(res, fn, arg, 'u', 0, 1, octet);
+			++bytep;
+			--bytesize;
+		    }
+		    if (bitsize) {
+			Uint bits = bitoffs + bitsize;
+			octet = bytep[0];
+			if (bits < 8)
+			    octet >>= 8 - bits;
+			else if (bits > 8) {
+			    bits -= 8;  /* bits in last byte */
+			    octet <<= bits;
+			    octet |= bytep[1] >> (8 - bits);
+			}
+			octet &= (1 << bitsize) - 1;
+			if (is_first)
+			    is_first = 0;
+			else
+			    PRINT_CHAR(res, fn, arg, ',');
+			PRINT_UWORD(res, fn, arg, 'u', 0, 1, octet);
+			PRINT_CHAR(res, fn, arg, ':');
+			PRINT_UWORD(res, fn, arg, 'u', 0, 1, bitsize);
+		    }
+		    PRINT_STRING(res, fn, arg, ">>");
+		}
+		else {
+		    PRINT_STRING(res, fn, arg, "<<\"");
+		    while (bytesize) {
+			if (bitoffs)
+			    octet = (bytep[0] << bitoffs) | (bytep[1] >> (8-bitoffs));
+			else
+			    octet = bytep[0];
+			if (octet == '"')
+			    PRINT_CHAR(res, fn, arg, '\\');
+			PRINT_CHAR(res, fn, arg, octet);
+			++bytep;
+			--bytesize;
+		    }
+		    PRINT_STRING(res, fn, arg, "\">>");
 		}
 	    }
 	    break;
@@ -489,37 +565,74 @@ print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount,
 	    }
 	    break;
 	case MAP_DEF:
-	    {
-		Uint n;
-		Eterm *ks, *vs;
-		map_t *mp = (map_t *)map_val(wobj);
-		n  = map_get_size(mp);
-		ks = map_get_keys(mp);
-		vs = map_get_values(mp);
-
-		PRINT_CHAR(res, fn, arg, '#');
-		PRINT_CHAR(res, fn, arg, '{');
-		WSTACK_PUSH(s, PRT_CLOSE_TUPLE);
-		if (n > 0) {
-		    n--;
-		    WSTACK_PUSH(s, vs[n]);
-		    WSTACK_PUSH(s, PRT_TERM);
-		    WSTACK_PUSH(s, PRT_ASSOC);
-		    WSTACK_PUSH(s, ks[n]);
-		    WSTACK_PUSH(s, PRT_TERM);
-
-		    while (n--) {
-			WSTACK_PUSH(s, PRT_COMMA);
-			WSTACK_PUSH(s, vs[n]);
-			WSTACK_PUSH(s, PRT_TERM);
-			WSTACK_PUSH(s, PRT_ASSOC);
-			WSTACK_PUSH(s, ks[n]);
-			WSTACK_PUSH(s, PRT_TERM);
-		    }
-		}
-	    }
-	    break;
-	default:
+            if (is_flatmap(wobj)) {
+                Uint n;
+                Eterm *ks, *vs;
+                flatmap_t *mp = (flatmap_t *)flatmap_val(wobj);
+                n  = flatmap_get_size(mp);
+                ks = flatmap_get_keys(mp);
+                vs = flatmap_get_values(mp);
+
+                PRINT_CHAR(res, fn, arg, '#');
+                PRINT_CHAR(res, fn, arg, '{');
+                WSTACK_PUSH(s, PRT_CLOSE_TUPLE);
+                if (n > 0) {
+                    n--;
+                    WSTACK_PUSH5(s, vs[n], PRT_TERM, PRT_ASSOC, ks[n], PRT_TERM);
+                    while (n--) {
+                        WSTACK_PUSH6(s, PRT_COMMA, vs[n], PRT_TERM, PRT_ASSOC,
+                                ks[n], PRT_TERM);
+                    }
+                }
+            } else {
+                Uint n, mapval;
+                Eterm *head;
+                head = hashmap_val(wobj);
+                mapval = MAP_HEADER_VAL(*head);
+                switch (MAP_HEADER_TYPE(*head)) {
+                case MAP_HEADER_TAG_HAMT_HEAD_ARRAY:
+                case MAP_HEADER_TAG_HAMT_HEAD_BITMAP:
+                    PRINT_STRING(res, fn, arg, "#<");
+                    PRINT_UWORD(res, fn, arg, 'x', 0, 1, mapval);
+                    PRINT_STRING(res, fn, arg, ">{");
+                    WSTACK_PUSH(s,PRT_CLOSE_TUPLE);
+                    n = hashmap_bitcount(mapval);
+                    ASSERT(n < 17);
+                    head += 2;
+                    if (n > 0) {
+                        n--;
+                        WSTACK_PUSH(s, head[n]);
+                        WSTACK_PUSH(s, PRT_TERM);
+                        while (n--) {
+                            WSTACK_PUSH(s, PRT_COMMA);
+                            WSTACK_PUSH(s, head[n]);
+                            WSTACK_PUSH(s, PRT_TERM);
+                        }
+                    }
+                    break;
+                case MAP_HEADER_TAG_HAMT_NODE_BITMAP:
+                    n = hashmap_bitcount(mapval);
+                    head++;
+                    PRINT_CHAR(res, fn, arg, '<');
+                    PRINT_UWORD(res, fn, arg, 'x', 0, 1, mapval);
+                    PRINT_STRING(res, fn, arg, ">{");
+                    WSTACK_PUSH(s,PRT_CLOSE_TUPLE);
+                    ASSERT(n < 17);
+                    if (n > 0) {
+                        n--;
+                        WSTACK_PUSH(s, head[n]);
+                        WSTACK_PUSH(s, PRT_TERM);
+                        while (n--) {
+                            WSTACK_PUSH(s, PRT_COMMA);
+                            WSTACK_PUSH(s, head[n]);
+                            WSTACK_PUSH(s, PRT_TERM);
+                        }
+                    }
+                    break;
+                }
+            }
+            break;
+        default:
 	    PRINT_STRING(res, fn, arg, "<unknown:");
 	    PRINT_POINTER(res, fn, arg, wobj);
 	    PRINT_CHAR(res, fn, arg, '>');
@@ -528,17 +641,17 @@ print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount,
     }
 
  L_done:
-    
     DESTROY_WSTACK(s);
     return res;
 }
 
+
 int
 erts_printf_term(fmtfn_t fn, void* arg, ErlPfEterm term, long precision,
 		 ErlPfEterm* term_base)
 {
     int res;
-    ASSERT(sizeof(ErlPfEterm) == sizeof(Eterm));
+    ERTS_CT_ASSERT(sizeof(ErlPfEterm) == sizeof(Eterm));
 
     res = print_term(fn, arg, (Eterm)term, &precision, (Eterm*)term_base);
     if (res < 0)
diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c
index ea63d20dfa..4940ffc4a0 100644
--- a/erts/emulator/beam/erl_process.c
+++ b/erts/emulator/beam/erl_process.c
@@ -43,8 +43,11 @@
 #include "erl_async.h"
 #include "dtrace-wrapper.h"
 #include "erl_ptab.h"
+#include "erl_bif_unique.h"
+#define ERTS_WANT_TIMER_WHEEL_API
+#include "erl_time.h"
 
-
+#define ERTS_CHECK_TIME_REDS CONTEXT_REDS
 #define ERTS_DELAYED_WAKEUP_INFINITY (~(Uint64) 0)
 #define ERTS_DELAYED_WAKEUP_REDUCTIONS ((Uint64) CONTEXT_REDS/2)
 
@@ -152,7 +155,7 @@ extern BeamInstr beam_continue_exit[];
 /* Eager check I/O not supported on OSE yet. */
 int erts_eager_check_io = 0;
 #else
-int erts_eager_check_io = 0;
+int erts_eager_check_io = 1;
 #endif
 int erts_sched_compact_load;
 int erts_sched_balance_util = 0;
@@ -457,13 +460,12 @@ do {									\
 
 static void exec_misc_ops(ErtsRunQueue *);
 static void print_function_from_pc(int to, void *to_arg, BeamInstr* x);
-static int stack_element_dump(int to, void *to_arg, Process* p, Eterm* sp,
-			      int yreg);
+static int stack_element_dump(int to, void *to_arg, Eterm* sp, int yreg);
 
 static void aux_work_timeout(void *unused);
 static void aux_work_timeout_early_init(int no_schedulers);
 static void aux_work_timeout_late_init(void);
-static void setup_aux_work_timer(void);
+static void setup_aux_work_timer(ErtsSchedulerData *esdp);
 
 static int execute_sys_tasks(Process *c_p,
 			     erts_aint32_t *statep,
@@ -493,6 +495,8 @@ dbg_chk_aux_work_val(erts_aint32_t value)
     valid |= ERTS_SSI_AUX_WORK_MISC_THR_PRGR;
     valid |= ERTS_SSI_AUX_WORK_DD;
     valid |= ERTS_SSI_AUX_WORK_DD_THR_PRGR;
+    valid |= ERTS_SSI_AUX_WORK_CNCLD_TMRS;
+    valid |= ERTS_SSI_AUX_WORK_CNCLD_TMRS_THR_PRGR;
     valid |= ERTS_SSI_AUX_WORK_THR_PRGR_LATER_OP;
 #endif
 #if HAVE_ERTS_MSEG
@@ -610,13 +614,11 @@ erts_pre_init_process(void)
 #endif
 }
 
-#ifdef ERTS_SMP
 static void
 release_process(void *vproc)
 {
-    erts_smp_proc_dec_refc((Process *) vproc);
+    erts_proc_dec_refc((Process *) vproc);
 }
-#endif
 
 /* initialize the scheduler */
 void
@@ -632,16 +634,18 @@ erts_init_process(int ncpu, int proc_tab_size, int legacy_proc_tab)
 
     erts_ptab_init_table(&erts_proc,
 			 ERTS_ALC_T_PROC_TABLE,
-#ifdef ERTS_SMP
 			 release_process,
-#else
-			 NULL,
-#endif
 			 (ErtsPTabElementCommon *) &erts_invalid_process.common,
 			 proc_tab_size,
 			 sizeof(Process),
 			 "process_table",
-			 legacy_proc_tab);
+			 legacy_proc_tab,
+#ifdef ERTS_SMP
+			 1
+#else
+			 0
+#endif
+	);
 
     last_reductions = 0;
     last_exact_reductions = 0;
@@ -702,8 +706,8 @@ init_sched_wall_time(ErtsSchedWallTime *swtp)
 static ERTS_INLINE Uint64
 sched_wall_time_ts(void)
 {
-#ifdef HAVE_GETHRTIME
-    return (Uint64) sys_gethrtime();
+#ifdef ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT
+    return (Uint64) erts_os_monotonic_time();
 #else
     Uint64 res;
     SysTimeval tv;
@@ -1023,11 +1027,7 @@ reply_sched_wall_time(void *vswtrp)
 	hpp = &hp;
     }
 
-    erts_queue_message(rp, &rp_locks, bp, msg, NIL
-#ifdef USE_VM_PROBES
-			   , NIL
-#endif
-		       );
+    erts_queue_message(rp, &rp_locks, bp, msg, NIL);
 
     if (swtrp->req_sched == esdp->no)
 	rp_locks &= ~ERTS_PROC_LOCK_MAIN;
@@ -1035,7 +1035,7 @@ reply_sched_wall_time(void *vswtrp)
     if (rp_locks)
 	erts_smp_proc_unlock(rp, rp_locks);
 
-    erts_smp_proc_dec_refc(rp);
+    erts_proc_dec_refc(rp);
 
     if (erts_smp_atomic32_dec_read_nob(&swtrp->refc) == 0)
 	swtreq_free(vswtrp);
@@ -1067,7 +1067,7 @@ erts_sched_wall_time_request(Process *c_p, int set, int enable)
     erts_smp_atomic32_init_nob(&swtrp->refc,
 			       (erts_aint32_t) erts_no_schedulers);
 
-    erts_smp_proc_add_refc(c_p, (Sint32) erts_no_schedulers);
+    erts_proc_add_refc(c_p, (Sint32) erts_no_schedulers);
 
 #ifdef ERTS_SMP
     if (erts_no_schedulers > 1)
@@ -1128,7 +1128,7 @@ erts_psd_set_init(Process *p, ErtsProcLocks plocks, int ix, void *data)
     xplocks &= ~plocks;
     if (xplocks && erts_smp_proc_trylock(p, xplocks) == EBUSY) {
 	if (xplocks & ERTS_PROC_LOCK_MAIN) {
-	    erts_smp_proc_inc_refc(p);
+	    erts_proc_inc_refc(p);
 	    erts_smp_proc_unlock(p, plocks);
 	    erts_smp_proc_lock(p, ERTS_PROC_LOCKS_ALL);
 	    refc = 1;
@@ -1144,7 +1144,7 @@ erts_psd_set_init(Process *p, ErtsProcLocks plocks, int ix, void *data)
     if (xplocks)
 	erts_smp_proc_unlock(p, xplocks);
     if (refc)
-	erts_smp_proc_dec_refc(p);
+	erts_proc_dec_refc(p);
     ASSERT(p->psd);
     if (p->psd != psd)
 	erts_free(ERTS_ALC_T_PSD, psd);
@@ -1772,6 +1772,101 @@ handle_delayed_dealloc_thr_prgr(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, i
 }
 
 /*
+ * Canceled timers
+ */
+
+void
+erts_notify_canceled_timer(ErtsSchedulerData *esdp, int rsid)
+{
+    ASSERT(esdp && esdp == erts_get_scheduler_data());
+    if (esdp && !ERTS_SCHEDULER_IS_DIRTY(esdp))
+	schedule_aux_work_wakeup(&esdp->aux_work_data,
+				 rsid,
+				 ERTS_SSI_AUX_WORK_CNCLD_TMRS);
+    else
+	set_aux_work_flags_wakeup_relb(ERTS_SCHED_SLEEP_INFO_IX(rsid-1),
+				       ERTS_SSI_AUX_WORK_CNCLD_TMRS);
+}
+
+static ERTS_INLINE erts_aint32_t
+handle_canceled_timers(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, int waiting)
+{
+    ErtsSchedulerSleepInfo *ssi = awdp->ssi;
+    int need_thr_progress = 0;
+    ErtsThrPrgrVal wakeup = ERTS_THR_PRGR_INVALID;
+    int more_work = 0;
+
+#ifdef ERTS_DIRTY_SCHEDULERS
+    ASSERT(!awdp->esdp || !ERTS_SCHEDULER_IS_DIRTY(awdp->esdp));
+#endif
+    unset_aux_work_flags(ssi, ERTS_SSI_AUX_WORK_CNCLD_TMRS);
+    erts_handle_canceled_timers((void *) awdp->esdp,
+				&need_thr_progress,
+				&wakeup,
+				&more_work);
+    if (more_work) {
+	if (set_aux_work_flags(ssi, ERTS_SSI_AUX_WORK_CNCLD_TMRS)
+	    & ERTS_SSI_AUX_WORK_CNCLD_TMRS_THR_PRGR) {
+	    unset_aux_work_flags(ssi, ERTS_SSI_AUX_WORK_CNCLD_TMRS_THR_PRGR);
+	    aux_work &= ~ERTS_SSI_AUX_WORK_CNCLD_TMRS_THR_PRGR;
+	}
+	return aux_work;
+    }
+
+    if (need_thr_progress) {
+	if (wakeup == ERTS_THR_PRGR_INVALID)
+	    wakeup = erts_thr_progress_later(awdp->esdp);
+	awdp->cncld_tmrs.thr_prgr = wakeup;
+	set_aux_work_flags(ssi, ERTS_SSI_AUX_WORK_CNCLD_TMRS_THR_PRGR);
+	haw_thr_prgr_soft_wakeup(awdp, wakeup);
+    }
+    return aux_work & ~ERTS_SSI_AUX_WORK_CNCLD_TMRS;
+}
+
+static ERTS_INLINE erts_aint32_t
+handle_canceled_timers_thr_prgr(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, int waiting)
+{
+    ErtsSchedulerSleepInfo *ssi;
+    int need_thr_progress;
+    int more_work;
+    ErtsThrPrgrVal wakeup = ERTS_THR_PRGR_INVALID;
+    ErtsThrPrgrVal current = haw_thr_prgr_current(awdp);
+
+#ifdef ERTS_DIRTY_SCHEDULERS
+    ASSERT(!awdp->esdp || !ERTS_SCHEDULER_IS_DIRTY(awdp->esdp));
+#endif
+    if (!erts_thr_progress_has_reached_this(current, awdp->cncld_tmrs.thr_prgr))
+	return aux_work & ~ERTS_SSI_AUX_WORK_CNCLD_TMRS_THR_PRGR;
+
+    ssi = awdp->ssi;
+    need_thr_progress = 0;
+    more_work = 0;
+
+    erts_handle_canceled_timers((void *) awdp->esdp,
+				&need_thr_progress,
+				&wakeup,
+				&more_work);
+    if (more_work) {
+	set_aux_work_flags(ssi, ERTS_SSI_AUX_WORK_CNCLD_TMRS);
+	unset_aux_work_flags(ssi, ERTS_SSI_AUX_WORK_CNCLD_TMRS_THR_PRGR);
+	return ((aux_work & ~ERTS_SSI_AUX_WORK_CNCLD_TMRS_THR_PRGR)
+		| ERTS_SSI_AUX_WORK_CNCLD_TMRS);
+    }
+
+    if (need_thr_progress) {
+	if (wakeup == ERTS_THR_PRGR_INVALID)
+	    wakeup = erts_thr_progress_later(awdp->esdp);
+	awdp->cncld_tmrs.thr_prgr = wakeup;
+	haw_thr_prgr_soft_wakeup(awdp, wakeup);
+    }
+    else {
+	unset_aux_work_flags(ssi, ERTS_SSI_AUX_WORK_CNCLD_TMRS_THR_PRGR);
+    }
+
+    return aux_work & ~ERTS_SSI_AUX_WORK_CNCLD_TMRS_THR_PRGR;
+}
+
+/*
  * Handle scheduled thread progress later operations.
  */
 #define ERTS_MAX_THR_PRGR_LATER_OPS 50
@@ -1869,7 +1964,7 @@ completed_dealloc(void *vproc)
 {
     if (erts_atomic32_dec_read_mb(&completed_dealloc_count) == 0) {
 	erts_resume((Process *) vproc, (ErtsProcLocks) 0);
-	erts_smp_proc_dec_refc((Process *) vproc);
+	erts_proc_dec_refc((Process *) vproc);
     }
 }
 
@@ -1918,7 +2013,7 @@ erts_debug_wait_deallocations(Process *c_p)
 				      count,
 				      0)) {
 	erts_suspend(c_p, ERTS_PROC_LOCK_MAIN, NULL);
-	erts_smp_proc_inc_refc(c_p);
+	erts_proc_inc_refc(c_p);
 	/* scheduler threads */
 	erts_schedule_multi_misc_aux_work(0,
 					  erts_no_schedulers,
@@ -2033,7 +2128,7 @@ static ERTS_INLINE erts_aint32_t
 handle_setup_aux_work_timer(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, int waiting)
 {
     unset_aux_work_flags(awdp->ssi, ERTS_SSI_AUX_WORK_SET_TMO);
-    setup_aux_work_timer();
+    setup_aux_work_timer(awdp->esdp);
     return aux_work & ~ERTS_SSI_AUX_WORK_SET_TMO;
 }
 
@@ -2093,6 +2188,11 @@ handle_aux_work(ErtsAuxWorkData *awdp, erts_aint32_t orig_aux_work, int waiting)
 #ifdef ERTS_SMP
     HANDLE_AUX_WORK(ERTS_SSI_AUX_WORK_THR_PRGR_LATER_OP,
 		    handle_thr_prgr_later_op);
+    HANDLE_AUX_WORK(ERTS_SSI_AUX_WORK_CNCLD_TMRS,
+		    handle_canceled_timers);
+    /* CNCLD_TMRS must be before CNCLD_TMRS_THR_PRGR */
+    HANDLE_AUX_WORK(ERTS_SSI_AUX_WORK_CNCLD_TMRS_THR_PRGR,
+		    handle_canceled_timers_thr_prgr);
 #endif
 
 #if ERTS_USE_ASYNC_READY_Q
@@ -2142,8 +2242,8 @@ handle_aux_work(ErtsAuxWorkData *awdp, erts_aint32_t orig_aux_work, int waiting)
 
 typedef struct {
     union {
-	ErlTimer data;
-	char align__[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(ErlTimer))];
+	ErtsTWheelTimer data;
+	char align__[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(ErtsTWheelTimer))];
     } timer;
 
     int initialized;
@@ -2153,6 +2253,22 @@ typedef struct {
 
 static ErtsAuxWorkTmo *aux_work_tmo;
 
+static ERTS_INLINE void
+start_aux_work_timer(ErtsSchedulerData *esdp)
+{
+    ErtsMonotonicTime tmo = erts_get_monotonic_time(esdp);
+    tmo = ERTS_MONOTONIC_TO_CLKTCKS(tmo-1);
+    tmo += ERTS_MSEC_TO_CLKTCKS(1000) + 1;
+    erts_twheel_init_timer(&aux_work_tmo->timer.data);
+    ASSERT(esdp);
+    erts_twheel_set_timer(esdp->timer_wheel,
+			  &aux_work_tmo->timer.data,
+			  aux_work_timeout,
+			  NULL,
+			  (void *) esdp,
+			  tmo);
+}
+
 static void
 aux_work_timeout_early_init(int no_schedulers)
 {
@@ -2185,18 +2301,12 @@ void
 aux_work_timeout_late_init(void)
 {
     aux_work_tmo->initialized = 1;
-    if (erts_atomic32_read_nob(&aux_work_tmo->refc)) {
-	aux_work_tmo->timer.data.active = 0;
-	erts_set_timer(&aux_work_tmo->timer.data,
-		       aux_work_timeout,
-		       NULL,
-		       NULL,
-		       1000);
-    }
+    if (erts_atomic32_read_nob(&aux_work_tmo->refc))
+	start_aux_work_timer(erts_get_scheduler_data());
 }
 
 static void
-aux_work_timeout(void *unused)
+aux_work_timeout(void *vesdp)
 {
     erts_aint32_t refc;
     int i;
@@ -2219,32 +2329,18 @@ aux_work_timeout(void *unused)
     if (refc != 1
 	|| 1 != erts_atomic32_cmpxchg_relb(&aux_work_tmo->refc, 0, 1)) {
 	/* Setup next timeout... */
-	aux_work_tmo->timer.data.active = 0;
-	erts_set_timer(&aux_work_tmo->timer.data,
-		       aux_work_timeout,
-		       NULL,
-		       NULL,
-		       1000);
+	start_aux_work_timer((ErtsSchedulerData *) vesdp);
     }
 }
 
 static void
-setup_aux_work_timer(void)
+setup_aux_work_timer(ErtsSchedulerData *esdp)
 {
-#ifndef ERTS_SMP
-    if (!erts_get_scheduler_data())
+    if (!esdp || !esdp->timer_wheel)
 	set_aux_work_flags_wakeup_nob(ERTS_SCHED_SLEEP_INFO_IX(0),
 				      ERTS_SSI_AUX_WORK_SET_TMO);
     else
-#endif
-    {
-	aux_work_tmo->timer.data.active = 0;
-	erts_set_timer(&aux_work_tmo->timer.data,
-		       aux_work_timeout,
-		       NULL,
-		       NULL,
-		       1000);
-    }
+	start_aux_work_timer(esdp);
 }
 
 erts_aint32_t
@@ -2275,7 +2371,7 @@ erts_set_aux_work_timeout(int ix, erts_aint32_t type, int enable)
 	if (refc == 1) {
 	    erts_atomic32_inc_acqb(&aux_work_tmo->refc);
 	    if (aux_work_tmo->initialized) 
-		setup_aux_work_timer();
+		setup_aux_work_timer(erts_get_scheduler_data());
 	}
     }
     return old;
@@ -2318,7 +2414,6 @@ erts_active_schedulers(void)
 
     ERTS_ATOMIC_FOREACH_RUNQ(rq, as -= abs(rq->waiting));
 
-    ASSERT(as >= 0);
     return as;
 }
 
@@ -2640,6 +2735,13 @@ thr_prgr_fin_wait(void *vssi)
 
 static void init_aux_work_data(ErtsAuxWorkData *awdp, ErtsSchedulerData *esdp, char *dawwp);
 
+void
+erts_interupt_aux_thread_timed(ErtsMonotonicTime timeout_time)
+{
+    /* TODO only poke when needed (based on timeout_time) */
+    erts_sched_poke(ERTS_SCHED_SLEEP_INFO_IX(-1));
+}
+
 static void *
 aux_thread(void *unused)
 {
@@ -2770,6 +2872,7 @@ scheduler_wait(int *fcalls, ErtsSchedulerData *esdp, ErtsRunQueue *rq)
 	    sched_wall_time_change(esdp, thr_prgr_active);
 
 	while (1) {
+	    ErtsMonotonicTime current_time;
 
 	    aux_work = erts_atomic32_read_acqb(&ssi->aux_work);
 	    if (aux_work) {
@@ -2783,34 +2886,76 @@ scheduler_wait(int *fcalls, ErtsSchedulerData *esdp, ErtsRunQueue *rq)
 		    erts_thr_progress_leader_update(esdp);
 	    }
 
-	    if (aux_work)
-		flgs = erts_smp_atomic32_read_acqb(&ssi->flags);
+	    if (aux_work) {
+		if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
+		    flgs = erts_smp_atomic32_read_acqb(&ssi->flags);
+		    current_time = erts_get_monotonic_time(esdp);
+		    if (current_time >= erts_next_timeout_time(esdp->next_tmo_ref)) {
+			if (!thr_prgr_active) {
+			    erts_thr_progress_active(esdp, thr_prgr_active = 1);
+			    sched_wall_time_change(esdp, 1);
+			}
+			erts_bump_timers(esdp->timer_wheel, current_time);
+		    }
+		}
+	    }
 	    else {
+		ErtsMonotonicTime timeout_time;
+		int do_timeout = 0;
 		if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
-		    if (thr_prgr_active) {
-			erts_thr_progress_active(esdp, thr_prgr_active = 0);
-			sched_wall_time_change(esdp, 0);
+		    timeout_time = erts_check_next_timeout_time(esdp);
+		    current_time = erts_get_monotonic_time(esdp);
+		    do_timeout = (current_time >= timeout_time);
+		} else
+		    timeout_time = ERTS_MONOTONIC_TIME_MAX;
+		if (do_timeout) {
+		    if (!thr_prgr_active) {
+			erts_thr_progress_active(esdp, thr_prgr_active = 1);
+			sched_wall_time_change(esdp, 1);
 		    }
-		    erts_thr_progress_prepare_wait(esdp);
 		}
+		else {
+		    if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
+			if (thr_prgr_active) {
+			    erts_thr_progress_active(esdp, thr_prgr_active = 0);
+			    sched_wall_time_change(esdp, 0);
+			}
+			erts_thr_progress_prepare_wait(esdp);
+		    }
 
-		ERTS_SCHED_FAIR_YIELD();
+		    ERTS_SCHED_FAIR_YIELD();
 
-		flgs = sched_spin_wait(ssi, spincount);
-		if (flgs & ERTS_SSI_FLG_SLEEPING) {
-		    ASSERT(flgs & ERTS_SSI_FLG_WAITING);
-		    flgs = sched_set_sleeptype(ssi, ERTS_SSI_FLG_TSE_SLEEPING);
+		    flgs = sched_spin_wait(ssi, spincount);
 		    if (flgs & ERTS_SSI_FLG_SLEEPING) {
-			int res;
-			ASSERT(flgs & ERTS_SSI_FLG_TSE_SLEEPING);
 			ASSERT(flgs & ERTS_SSI_FLG_WAITING);
-			do {
-			    res = erts_tse_wait(ssi->event);
-			} while (res == EINTR);
+			flgs = sched_set_sleeptype(ssi, ERTS_SSI_FLG_TSE_SLEEPING);
+			if (flgs & ERTS_SSI_FLG_SLEEPING) {
+			    int res;
+			    ASSERT(flgs & ERTS_SSI_FLG_TSE_SLEEPING);
+			    ASSERT(flgs & ERTS_SSI_FLG_WAITING);
+			    current_time = ERTS_SCHEDULER_IS_DIRTY(esdp) ? 0 :
+				erts_get_monotonic_time(esdp);
+			    do {
+				Sint64 timeout;
+				if (current_time >= timeout_time)
+				    break;
+				if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
+				    timeout = ERTS_MONOTONIC_TO_NSEC(timeout_time
+								     - current_time
+								     - 1) + 1;
+				} else
+				    timeout = -1;
+				res = erts_tse_twait(ssi->event, timeout);
+				current_time = ERTS_SCHEDULER_IS_DIRTY(esdp) ? 0 :
+				    erts_get_monotonic_time(esdp);
+			    } while (res == EINTR);
+			}
 		    }
+		    if (!ERTS_SCHEDULER_IS_DIRTY(esdp))
+			erts_thr_progress_finalize_wait(esdp);
 		}
-		if (!ERTS_SCHEDULER_IS_DIRTY(esdp))
-		    erts_thr_progress_finalize_wait(esdp);
+		if (!ERTS_SCHEDULER_IS_DIRTY(esdp) && current_time >= timeout_time)
+		    erts_bump_timers(esdp->timer_wheel, current_time);
 	    }
 
 	    if (!(flgs & ERTS_SSI_FLG_WAITING)) {
@@ -2843,7 +2988,6 @@ scheduler_wait(int *fcalls, ErtsSchedulerData *esdp, ErtsRunQueue *rq)
     else
 #endif
     {
-	erts_aint_t dt;
 
 	erts_smp_atomic32_set_relb(&function_calls, 0);
 	*fcalls = 0;
@@ -2868,6 +3012,7 @@ scheduler_wait(int *fcalls, ErtsSchedulerData *esdp, ErtsRunQueue *rq)
 	    goto sys_aux_work;
 
 	while (spincount-- > 0) {
+	    ErtsMonotonicTime current_time;
 
 	sys_poll_aux_work:
 
@@ -2877,8 +3022,11 @@ scheduler_wait(int *fcalls, ErtsSchedulerData *esdp, ErtsRunQueue *rq)
 	    ASSERT(!erts_port_task_have_outstanding_io_tasks());
 	    erl_sys_schedule(1); /* Might give us something to do */
 
-	    dt = erts_do_time_read_and_reset();
-	    if (dt) erts_bump_timer(dt);
+	    if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
+		current_time = erts_get_monotonic_time(esdp);
+		if (current_time >= erts_next_timeout_time(esdp->next_tmo_ref))
+		    erts_bump_timers(esdp->timer_wheel, current_time);
+	    }
 
 	sys_aux_work:
 #ifndef ERTS_SMP
@@ -2887,15 +3035,18 @@ scheduler_wait(int *fcalls, ErtsSchedulerData *esdp, ErtsRunQueue *rq)
 
 	    aux_work = erts_atomic32_read_acqb(&ssi->aux_work);
 	    if (aux_work) {
-		if (!working)
-		    sched_wall_time_change(esdp, working = 1);
+		if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
+		    if (!working)
+			sched_wall_time_change(esdp, working = 1);
 #ifdef ERTS_SMP
-		if (!thr_prgr_active)
-		    erts_thr_progress_active(esdp, thr_prgr_active = 1);
+		    if (!thr_prgr_active)
+			erts_thr_progress_active(esdp, thr_prgr_active = 1);
 #endif
+		}
 		aux_work = handle_aux_work(&esdp->aux_work_data, aux_work, 1);
 #ifdef ERTS_SMP
-		if (aux_work && erts_thr_progress_update(esdp))
+		if (!ERTS_SCHEDULER_IS_DIRTY(esdp) && aux_work &&
+		    erts_thr_progress_update(esdp))
 		    erts_thr_progress_leader_update(esdp);
 #endif
 	    }
@@ -2993,8 +3144,11 @@ scheduler_wait(int *fcalls, ErtsSchedulerData *esdp, ErtsRunQueue *rq)
 
 	erl_sys_schedule(0);
 
-	dt = erts_do_time_read_and_reset();
-	if (dt) erts_bump_timer(dt);
+	if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
+	    ErtsMonotonicTime current_time = erts_get_monotonic_time(esdp);
+	    if (current_time >= erts_next_timeout_time(esdp->next_tmo_ref))
+		erts_bump_timers(esdp->timer_wheel, current_time);
+	}
 
 #ifndef ERTS_SMP
 	if (rq->len == 0 && !rq->misc.start)
@@ -4885,9 +5039,11 @@ wakeup_other_check(ErtsRunQueue *rq, Uint32 flags)
 				 + ERTS_WAKEUP_OTHER_FIXED_INC);
 	    if (rq->wakeup_other > wakeup_other.limit) {
 #ifdef ERTS_DIRTY_SCHEDULERS
-		if (ERTS_RUNQ_IX_IS_DIRTY(rq->ix) && rq->waiting)
-		    wake_dirty_schedulers(rq, 1);
-		else
+		if (ERTS_RUNQ_IX_IS_DIRTY(rq->ix)) {
+		    if (rq->waiting) {
+			wake_dirty_schedulers(rq, 1);
+		    }
+		} else
 #endif
 		{
 		    int empty_rqs =
@@ -5200,6 +5356,7 @@ init_aux_work_data(ErtsAuxWorkData *awdp, ErtsSchedulerData *esdp, char *dawwp)
     awdp->dd.thr_prgr = ERTS_THR_PRGR_VAL_WAITING;
     awdp->dd.completed_callback = NULL;
     awdp->dd.completed_arg = NULL;
+    awdp->cncld_tmrs.thr_prgr = ERTS_THR_PRGR_VAL_WAITING;
     awdp->later_op.thr_prgr = ERTS_THR_PRGR_VAL_FIRST;
     awdp->later_op.size = 0;
     awdp->later_op.first = NULL;
@@ -5264,6 +5421,7 @@ init_scheduler_data(ErtsSchedulerData* esdp, int num,
 #else
     esdp->no = (Uint) num;
 #endif
+
     esdp->ssi = ssi;
     esdp->current_process = NULL;
     esdp->current_port = NULL;
@@ -5276,6 +5434,12 @@ init_scheduler_data(ErtsSchedulerData* esdp, int num,
     esdp->run_queue = runq;
     esdp->run_queue->scheduler = esdp;
 
+    esdp->last_monotonic_time = 0;
+    esdp->check_time_reds = 0;
+
+    esdp->thr_id = (Uint32) num;
+    erts_sched_bif_unique_init(esdp);
+
     if (daww_ptr) {
 	init_aux_work_data(&esdp->aux_work_data, esdp, *daww_ptr);
 #ifdef ERTS_SMP
@@ -5874,6 +6038,7 @@ schedule_out_process(ErtsRunQueue *c_rq, erts_aint32_t state, Process *p, Proces
 	    free_proxy_proc(proxy);
 
 	erts_smp_runq_lock(c_rq);
+
 	return 0;
 
 #ifdef ERTS_DIRTY_SCHEDULERS
@@ -6586,7 +6751,7 @@ suspend_scheduler(ErtsSchedulerData *esdp)
 			    int res;
 
 			    do {
-				res = erts_tse_wait(ssi->event);
+				res = erts_tse_twait(ssi->event, -1);
 			    } while (res == EINTR);
 			}
 		    }
@@ -6642,6 +6807,8 @@ suspend_scheduler(ErtsSchedulerData *esdp)
 	}
     }
 
+    if (!ERTS_SCHEDULER_IS_DIRTY(esdp))
+	(void) erts_get_monotonic_time(esdp);
     erts_smp_runq_lock(esdp->run_queue);
     non_empty_runq(esdp->run_queue);
 
@@ -6749,6 +6916,7 @@ suspend_scheduler(ErtsSchedulerData *esdp)
 	    erts_smp_mtx_unlock(&schdlr_sspnd.mtx);
 
 	    while (1) {
+		ErtsMonotonicTime current_time;
 		erts_aint32_t qmask;
 		erts_aint32_t flgs;
 
@@ -6756,7 +6924,7 @@ suspend_scheduler(ErtsSchedulerData *esdp)
 			 & ERTS_RUNQ_FLGS_QMASK);
 		aux_work = erts_atomic32_read_acqb(&ssi->aux_work);
 		if (aux_work|qmask) {
-		    if (!thr_prgr_active) {
+		    if (!ERTS_SCHEDULER_IS_DIRTY(esdp) && !thr_prgr_active) {
 			erts_thr_progress_active(esdp, thr_prgr_active = 1);
 			sched_wall_time_change(esdp, 1);
 		    }
@@ -6764,7 +6932,8 @@ suspend_scheduler(ErtsSchedulerData *esdp)
 			aux_work = handle_aux_work(&esdp->aux_work_data,
 						   aux_work,
 						   1);
-		    if (aux_work && erts_thr_progress_update(esdp))
+		    if (!ERTS_SCHEDULER_IS_DIRTY(esdp) && aux_work &&
+			erts_thr_progress_update(esdp))
 			erts_thr_progress_leader_update(esdp);
 		    if (qmask) {
 			erts_smp_runq_lock(esdp->run_queue);
@@ -6773,30 +6942,77 @@ suspend_scheduler(ErtsSchedulerData *esdp)
 		    }
 		}
 
-		if (!aux_work) {
-		    if (thr_prgr_active) {
-			erts_thr_progress_active(esdp, thr_prgr_active = 0);
-			sched_wall_time_change(esdp, 0);
+		if (aux_work) {
+		    if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
+			current_time = erts_get_monotonic_time(esdp);
+			if (current_time >= erts_next_timeout_time(esdp->next_tmo_ref)) {
+			    if (!thr_prgr_active) {
+				erts_thr_progress_active(esdp, thr_prgr_active = 1);
+				sched_wall_time_change(esdp, 1);
+			    }
+			    erts_bump_timers(esdp->timer_wheel, current_time);
+			}
 		    }
-		    erts_thr_progress_prepare_wait(esdp);
-		    flgs = sched_spin_suspended(ssi,
-						ERTS_SCHED_SUSPEND_SLEEP_SPINCOUNT);
-		    if (flgs == (ERTS_SSI_FLG_SLEEPING
-				 | ERTS_SSI_FLG_WAITING
-				 | ERTS_SSI_FLG_SUSPENDED)) {
-			flgs = sched_set_suspended_sleeptype(ssi);
+		}
+		else {
+		    ErtsMonotonicTime timeout_time;
+		    int do_timeout = 0;
+		    if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
+			timeout_time = erts_check_next_timeout_time(esdp);
+			current_time = erts_get_monotonic_time(esdp);
+			do_timeout = (current_time >= timeout_time);
+		    } else
+			timeout_time = ERTS_MONOTONIC_TIME_MAX;
+		    if (do_timeout) {
+			if (!thr_prgr_active) {
+			    erts_thr_progress_active(esdp, thr_prgr_active = 1);
+			    sched_wall_time_change(esdp, 1);
+			}
+		    }
+		    else {
+			if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
+			    if (thr_prgr_active) {
+				erts_thr_progress_active(esdp, thr_prgr_active = 0);
+				sched_wall_time_change(esdp, 0);
+			    }
+			    erts_thr_progress_prepare_wait(esdp);
+			}
+			flgs = sched_spin_suspended(ssi,
+						    ERTS_SCHED_SUSPEND_SLEEP_SPINCOUNT);
 			if (flgs == (ERTS_SSI_FLG_SLEEPING
-				     | ERTS_SSI_FLG_TSE_SLEEPING
 				     | ERTS_SSI_FLG_WAITING
 				     | ERTS_SSI_FLG_SUSPENDED)) {
-			    int res;
-
-			    do {
-				res = erts_tse_wait(ssi->event);
-			    } while (res == EINTR);
+			    flgs = sched_set_suspended_sleeptype(ssi);
+			    if (flgs == (ERTS_SSI_FLG_SLEEPING
+					 | ERTS_SSI_FLG_TSE_SLEEPING
+					 | ERTS_SSI_FLG_WAITING
+					 | ERTS_SSI_FLG_SUSPENDED)) {
+				int res;
+
+				current_time = ERTS_SCHEDULER_IS_DIRTY(esdp) ? 0 :
+				    erts_get_monotonic_time(esdp);
+				do {
+				    Sint64 timeout;
+				    if (current_time >= timeout_time)
+					break;
+				    if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
+					timeout = ERTS_MONOTONIC_TO_NSEC(timeout_time
+									 - current_time
+									 - 1) + 1;
+				    } else
+					timeout = -1;
+				    res = erts_tse_twait(ssi->event, timeout);
+				    current_time = ERTS_SCHEDULER_IS_DIRTY(esdp) ? 0 :
+					erts_get_monotonic_time(esdp);
+				} while (res == EINTR);
+			    }
 			}
+			if (!ERTS_SCHEDULER_IS_DIRTY(esdp))
+			    erts_thr_progress_finalize_wait(esdp);
 		    }
-		    erts_thr_progress_finalize_wait(esdp);
+
+		    if (!ERTS_SCHEDULER_IS_DIRTY(esdp) && current_time >= timeout_time)
+			erts_bump_timers(esdp->timer_wheel, current_time);
 		}
 
 		flgs = sched_prep_spin_suspended(ssi, (ERTS_SSI_FLG_WAITING
@@ -7615,6 +7831,9 @@ sched_thread_func(void *vesdp)
     ErtsThrPrgrCallbacks callbacks;
     ErtsSchedulerData *esdp = vesdp;
     Uint no = esdp->no;
+
+    erts_sched_init_time_sup(esdp);
+
 #ifdef ERTS_SMP
     ERTS_SCHED_SLEEP_INFO_IX(no - 1)->event = erts_tse_fetch();
     callbacks.arg = (void *) esdp->ssi;
@@ -7717,6 +7936,8 @@ sched_dirty_cpu_thread_func(void *vesdp)
     callbacks.wait = NULL;
     callbacks.finalize_wait = NULL;
 
+    esdp->thr_id += erts_no_schedulers;
+
     erts_thr_progress_register_unmanaged_thread(&callbacks);
 #ifdef ERTS_ENABLE_LOCK_CHECK
     {
@@ -7778,6 +7999,8 @@ sched_dirty_io_thread_func(void *vesdp)
     callbacks.wait = NULL;
     callbacks.finalize_wait = NULL;
 
+    esdp->thr_id += erts_no_schedulers + erts_no_dirty_cpu_schedulers;
+
     erts_thr_progress_register_unmanaged_thread(&callbacks);
 #ifdef ERTS_ENABLE_LOCK_CHECK
     {
@@ -7835,23 +8058,17 @@ erts_start_schedulers(void)
     Uint actual;
     Uint wanted = erts_no_schedulers;
     Uint wanted_no_schedulers = erts_no_schedulers;
+    char name[16];
     ethr_thr_opts opts = ETHR_THR_OPTS_DEFAULT_INITER;
 
     opts.detached = 1;
 
-#ifdef ETHR_HAVE_THREAD_NAMES
-    opts.name = malloc(80);
-    if (!opts.name) {
-        ERTS_INTERNAL_ERROR("malloc failed to allocate memory!");
-    }
-#endif
+    opts.name = name;
 
 #ifdef ERTS_SMP
     if (erts_runq_supervision_interval) {
 	opts.suggested_stack_size = 16;
-#ifdef ETHR_HAVE_THREAD_NAMES
-        sprintf(opts.name, "runq_supervisor");
-#endif
+        erts_snprintf(opts.name, 16, "runq_supervisor");
 	erts_atomic_init_nob(&runq_supervisor_sleeping, 0);
 	if (0 != ethr_event_init(&runq_supervision_event))
 	    erl_exit(1, "Failed to create run-queue supervision event\n");
@@ -7878,9 +8095,7 @@ erts_start_schedulers(void)
 
 	ASSERT(actual == esdp->no - 1);
 
-#ifdef ETHR_HAVE_THREAD_NAMES
-	sprintf(opts.name, "scheduler_%d", actual + 1);
-#endif
+	erts_snprintf(opts.name, 16, "%lu_scheduler", actual + 1);
 
 #ifdef __OSE__
         /* This should be done in the bind strategy */
@@ -7902,18 +8117,14 @@ erts_start_schedulers(void)
 	int ix;
 	for (ix = 0; ix < erts_no_dirty_cpu_schedulers; ix++) {
 	    ErtsSchedulerData *esdp = ERTS_DIRTY_CPU_SCHEDULER_IX(ix);
-#ifdef ETHR_HAVE_THREAD_NAMES
-            sprintf(opts.name,"dirty_cpu_scheduler_%d", ix + 1);
-#endif
+	    erts_snprintf(opts.name, 16, "%d_dirty_cpu_scheduler", ix + 1);
 	    res = ethr_thr_create(&esdp->tid,sched_dirty_cpu_thread_func,(void*)esdp,&opts);
 	    if (res != 0)
 		erl_exit(1, "Failed to create dirty cpu scheduler thread %d\n", ix);
 	}
 	for (ix = 0; ix < erts_no_dirty_io_schedulers; ix++) {
 	    ErtsSchedulerData *esdp = ERTS_DIRTY_IO_SCHEDULER_IX(ix);
-#ifdef ETHR_HAVE_THREAD_NAMES
-            sprintf(opts.name,"dirty_io_scheduler_%d", ix + 1);
-#endif
+	    erts_snprintf(opts.name, 16, "%d_dirty_io_scheduler", ix + 1);
 	    res = ethr_thr_create(&esdp->tid,sched_dirty_io_thread_func,(void*)esdp,&opts);
 	    if (res != 0)
 		erl_exit(1, "Failed to create dirty io scheduler thread %d\n", ix);
@@ -7924,9 +8135,7 @@ erts_start_schedulers(void)
 
     ERTS_THR_MEMORY_BARRIER;
 
-#ifdef ETHR_HAVE_THREAD_NAMES
-    sprintf(opts.name, "aux");
-#endif
+    erts_snprintf(opts.name, 16, "aux");
 
 #ifdef __OSE__
     opts.coreNo = 0;
@@ -7952,9 +8161,6 @@ erts_start_schedulers(void)
 	erts_send_error_to_logger_nogl(dsbufp);
     }
 
-#ifdef ETHR_HAVE_THREAD_NAMES
-    free(opts.name);
-#endif
 }
 
 #endif /* ERTS_SMP */
@@ -8897,7 +9103,6 @@ Process *schedule(Process *p, int calls)
 {
     Process *proxy_p = NULL;
     ErtsRunQueue *rq;
-    erts_aint_t dt;
     ErtsSchedulerData *esdp;
     int context_reds;
     int fcalls;
@@ -8997,7 +9202,7 @@ Process *schedule(Process *p, int calls)
 	schedule_out_process(rq, state, p, proxy_p); /* Returns with rq locked! */
 	proxy_p = NULL;
 
-	ERTS_PROC_REDUCTIONS_EXECUTED(rq,
+	ERTS_PROC_REDUCTIONS_EXECUTED(esdp, rq,
 				      (int) ERTS_PSFLGS_GET_USR_PRIO(state),
 				      reds,
 				      actual_reds);
@@ -9014,12 +9219,9 @@ Process *schedule(Process *p, int calls)
 	    ASSERT(esdp->free_process == p);
 	    esdp->free_process = NULL;
 #else
-	    state = erts_smp_atomic32_read_nob(&p->state);
-	    if (!(state & ERTS_PSFLG_IN_RUNQ))
-		erts_free_proc(p);
+	    erts_proc_dec_refc(p);
 #endif
 	}
-
 #ifdef ERTS_SMP
 	ASSERT(!esdp->free_process);
 #endif
@@ -9027,11 +9229,15 @@ Process *schedule(Process *p, int calls)
 
 	ERTS_SMP_CHK_NO_PROC_LOCKS;
 
-	dt = erts_do_time_read_and_reset();
-	if (dt) {
-	    erts_smp_runq_unlock(rq);
-	    erts_bump_timer(dt);
-	    erts_smp_runq_lock(rq);
+	if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
+	    if (esdp->check_time_reds >= ERTS_CHECK_TIME_REDS)
+		(void) erts_get_monotonic_time(esdp);
+
+	    if (esdp->last_monotonic_time >= erts_next_timeout_time(esdp->next_tmo_ref)) {
+		erts_smp_runq_unlock(rq);
+		erts_bump_timers(esdp->timer_wheel, esdp->last_monotonic_time);
+		erts_smp_runq_lock(rq);
+	    }
 	}
 	BM_STOP_TIMER(system);
 
@@ -9177,6 +9383,7 @@ Process *schedule(Process *p, int calls)
 	else if (!ERTS_SCHEDULER_IS_DIRTY(esdp) &&
 		 (fcalls > input_reductions &&
 		  prepare_for_sys_schedule(esdp, !0))) {
+	    ErtsMonotonicTime current_time;
 	    /*
 	     * Schedule system-level activities.
 	     */
@@ -9189,8 +9396,10 @@ Process *schedule(Process *p, int calls)
 #endif
 	    erts_smp_runq_unlock(rq);
 	    erl_sys_schedule(1);
-	    dt = erts_do_time_read_and_reset();
-	    if (dt) erts_bump_timer(dt);
+
+	    current_time = erts_get_monotonic_time(esdp);
+	    if (current_time >= erts_next_timeout_time(esdp->next_tmo_ref))
+		erts_bump_timers(esdp->timer_wheel, current_time);
 
 #ifdef ERTS_SMP
 	    erts_smp_runq_lock(rq);
@@ -9329,13 +9538,8 @@ Process *schedule(Process *p, int calls)
 				      | ERTS_PSFLG_PENDING_EXIT
 				      | ERTS_PSFLG_ACTIVE_SYS))
 			    == ERTS_PSFLG_SUSPENDED)) {
-			if (state & ERTS_PSFLG_FREE) {
-#ifdef ERTS_SMP
-			    erts_smp_proc_dec_refc(p);
-#else
-			    erts_free_proc(p);
-#endif
-			}
+			if (state & ERTS_PSFLG_FREE)
+			    erts_proc_dec_refc(p);
 			if (proxy_p) {
 			    free_proxy_proc(proxy_p);
 			    proxy_p = NULL;
@@ -9478,6 +9682,20 @@ Process *schedule(Process *p, int calls)
 	/* Never run a suspended process */
 	ASSERT(!(ERTS_PSFLG_SUSPENDED & erts_smp_atomic32_read_nob(&p->state)));
 
+	ASSERT(erts_proc_read_refc(p) > 0);
+
+	if (!(state & ERTS_PSFLG_EXITING) && ERTS_PTMR_IS_TIMED_OUT(p)) {
+	    BeamInstr** pi;
+#ifdef ERTS_SMP
+	    ETHR_MEMBAR(ETHR_LoadLoad|ETHR_LoadStore);
+#endif
+	    pi = (BeamInstr **) p->def_arg_reg;
+	    p->i = *pi;
+	    p->flags &= ~F_INSLPQUEUE;
+	    p->flags |= F_TIMO;
+	    ERTS_PTMR_CLEAR(p);
+	}
+
 	return p;
     }
 }
@@ -9530,15 +9748,7 @@ notify_sys_task_executed(Process *c_p, ErtsProcSysTask *st, Eterm st_result)
 	ASSERT(hp_start + hsz == hp);
 #endif
 
-	erts_queue_message(rp,
-			   &rp_locks,
-			   bp,
-			   msg,
-			   NIL
-#ifdef USE_VM_PROBES
-			   , NIL
-#endif
-	    );
+	erts_queue_message(rp, &rp_locks, bp, msg, NIL);
 
 	if (c_p == rp)
 	    rp_locks &= ~ERTS_PROC_LOCK_MAIN;
@@ -10394,6 +10604,8 @@ erts_free_proc(Process *p)
 #ifdef ERTS_SMP
     erts_proc_lock_fin(p);
 #endif
+    ASSERT(erts_smp_atomic32_read_nob(&p->state) & ERTS_PSFLG_FREE);
+    ASSERT(0 == erts_proc_read_refc(p));
     erts_free(ERTS_ALC_T_PROC, (void *) p);
 }
 
@@ -10436,7 +10648,7 @@ alloc_process(ErtsRunQueue *rq, erts_aint32_t state)
     init_arg.run_queue = rq;
     init_arg.state = state;
 
-    ASSERT(((char *) p) == ((char *) &p->common));
+    ERTS_CT_ASSERT(offsetof(Process,common) == 0);
 
     if (!erts_ptab_new_element(&erts_proc,
 			       &p->common,
@@ -10446,6 +10658,8 @@ alloc_process(ErtsRunQueue *rq, erts_aint32_t state)
 	return NULL;
     }
 
+    ASSERT(erts_proc_read_refc(p) > 0);
+
     ASSERT(internal_pid_serial(p->common.id) <= ERTS_MAX_PID_SERIAL);
     
     p->approx_started = erts_get_approx_time();
@@ -10495,6 +10709,7 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
 	    int ix = so->scheduler-1;
 	    ASSERT(0 <= ix && ix < erts_no_run_queues);
 	    rq = ERTS_RUNQ_IX(ix);
+	    /* Unsupported feature... */
 	    state |= ERTS_PSFLG_BOUND;
 	}
 	prio = (erts_aint32_t) so->priority;
@@ -10527,6 +10742,9 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
 
     p->flags = erts_default_process_flags;
 
+    p->static_flags = 0;
+    if (so->flags & SPO_SYSTEM_PROC)
+	p->static_flags |= ERTS_STC_FLG_SYSTEM_PROC;
     if (so->flags & SPO_USE_ARGS) {
 	p->min_heap_size  = so->min_heap_size;
 	p->min_vheap_size = so->min_vheap_size;
@@ -10539,9 +10757,9 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
     p->schedule_count = 0;
     ASSERT(p->min_heap_size == erts_next_heap_size(p->min_heap_size, 0));
     
-    p->initial[INITIAL_MOD] = mod;
-    p->initial[INITIAL_FUN] = func;
-    p->initial[INITIAL_ARI] = (Uint) arity;
+    p->u.initial[INITIAL_MOD] = mod;
+    p->u.initial[INITIAL_FUN] = func;
+    p->u.initial[INITIAL_ARI] = (Uint) arity;
 
     /*
      * Must initialize binary lists here before copying binaries to process.
@@ -10582,7 +10800,7 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
 
     /* No need to initialize p->fcalls. */
 
-    p->current = p->initial+INITIAL_MOD;
+    p->current = p->u.initial+INITIAL_MOD;
 
     p->i = (BeamInstr *) beam_apply;
     p->cp = (BeamInstr *) beam_apply+1;
@@ -10605,11 +10823,7 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
     p->ftrace = NIL;
     p->reds = 0;
 
-#ifdef ERTS_SMP
-    p->common.u.alive.ptimer = NULL;
-#else
-    sys_memset(&p->common.u.alive.tm, 0, sizeof(ErlTimer));
-#endif
+    ERTS_PTMR_INIT(p);
 
     p->common.u.alive.reg = NULL;
     ERTS_P_LINKS(p) = NULL;
@@ -10640,7 +10854,8 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
     p->msg_inq.last = &p->msg_inq.first;
     p->msg_inq.len = 0;
 #endif
-    p->u.bif_timers = NULL;
+    p->bif_timers = NULL;
+    p->accessor_bif_timers = NULL;
     p->mbuf = NULL;
     p->mbuf_sz = 0;
     p->psd = NULL;
@@ -10798,11 +11013,7 @@ void erts_init_empty_process(Process *p)
     p->bin_old_vheap = 0;
     p->sys_task_qs = NULL;
     p->bin_vheap_mature = 0;
-#ifdef ERTS_SMP
-    p->common.u.alive.ptimer = NULL;
-#else
-    memset(&(p->common.u.alive.tm), 0, sizeof(ErlTimer));
-#endif
+    ERTS_PTMR_INIT(p);
     p->next = NULL;
     p->off_heap.first = NULL;
     p->off_heap.overhead = 0;
@@ -10823,14 +11034,15 @@ void erts_init_empty_process(Process *p)
     p->msg.last = &p->msg.first;
     p->msg.save = &p->msg.first;
     p->msg.len = 0;
-    p->u.bif_timers = NULL;
+    p->bif_timers = NULL;
+    p->accessor_bif_timers = NULL;
     p->dictionary = NULL;
     p->seq_trace_clock = 0;
     p->seq_trace_lastcnt = 0;
     p->seq_trace_token = NIL;
-    p->initial[0] = 0;
-    p->initial[1] = 0;
-    p->initial[2] = 0;
+    p->u.initial[0] = 0;
+    p->u.initial[1] = 0;
+    p->u.initial[2] = 0;
     p->catches = 0;
     p->cp = NULL;
     p->i = NULL;
@@ -10851,6 +11063,8 @@ void erts_init_empty_process(Process *p)
 
     p->parent = NIL;
     p->approx_started = 0;
+    p->static_flags = 0;
+
     p->common.u.alive.started_interval = 0;
 
 #ifdef HIPE
@@ -10915,7 +11129,8 @@ erts_debug_verify_clean_empty_process(Process* p)
     ASSERT(p->suspend_monitors == NULL);
     ASSERT(p->msg.first == NULL);
     ASSERT(p->msg.len == 0);
-    ASSERT(p->u.bif_timers == NULL);
+    ASSERT(p->bif_timers == NULL);
+    ASSERT(p->accessor_bif_timers == NULL);
     ASSERT(p->dictionary == NULL);
     ASSERT(p->catches == 0);
     ASSERT(p->cp == NULL);
@@ -11079,7 +11294,6 @@ set_proc_exiting(Process *p,
      */
     p->freason = EXTAG_EXIT;
     KILL_CATCHES(p);
-    cancel_timer(p);
     p->i = (BeamInstr *) beam_exit;
 
     if (enqueue)
@@ -11224,11 +11438,7 @@ send_exit_message(Process *to, ErtsProcLocks *to_locksp,
 
 	hp = erts_alloc_message_heap(term_size, &bp, &ohp, to, to_locksp);
 	mess = copy_struct(exit_term, term_size, &hp, ohp);
-	erts_queue_message(to, to_locksp, bp, mess, NIL
-#ifdef USE_VM_PROBES
-			   , NIL
-#endif
-			   );
+	erts_queue_message(to, to_locksp, bp, mess, NIL);
     } else {
 	ErlHeapFragment* bp;
 	Eterm* hp;
@@ -11244,11 +11454,7 @@ send_exit_message(Process *to, ErtsProcLocks *to_locksp,
 	/* the trace token must in this case be updated by the caller */
 	seq_trace_output(token, mess, SEQ_TRACE_SEND, to->common.id, NULL);
 	temp_token = copy_struct(token, sz_token, &hp, &bp->off_heap);
-	erts_queue_message(to, to_locksp, bp, mess, temp_token
-#ifdef USE_VM_PROBES
-			   , NIL
-#endif
-			   );
+	erts_queue_message(to, to_locksp, bp, mess, temp_token);
     }
 }
 
@@ -11501,7 +11707,8 @@ static void doit_exit_monitor(ErtsMonitor *mon, void *vpcontext)
     ErtsMonitor *rmon;
     Process *rp;
 
-    if (mon->type == MON_ORIGIN) {
+    switch (mon->type) {
+    case MON_ORIGIN:
 	/* We are monitoring someone else, we need to demonitor that one.. */
 	if (is_atom(mon->pid)) { /* remote by name */
 	    ASSERT(is_node_name_atom(mon->pid));
@@ -11564,7 +11771,8 @@ static void doit_exit_monitor(ErtsMonitor *mon, void *vpcontext)
 		}
 	    }
 	}
-    } else { /* type == MON_TARGET */
+	break;
+    case MON_TARGET:
 	ASSERT(mon->type == MON_TARGET);
 	ASSERT(is_pid(mon->pid) || is_internal_port(mon->pid));
 	if (is_internal_port(mon->pid)) {
@@ -11623,6 +11831,12 @@ static void doit_exit_monitor(ErtsMonitor *mon, void *vpcontext)
 		}
 	    }
 	}
+	break;
+    case MON_TIME_OFFSET:
+	erts_demonitor_time_offset(mon->ref);
+	break;
+    default:
+	ERTS_INTERNAL_ERROR("Invalid monitor type");
     }
  done:
     /* As the monitors are previously removed from the process, 
@@ -11769,6 +11983,7 @@ erts_do_exit_process(Process* p, Eterm reason)
 {
     p->arity = 0;		/* No live registers */
     p->fvalue = reason;
+    
 
 #ifdef USE_VM_PROBES
     if (DTRACE_ENABLED(process_exit)) {
@@ -11781,6 +11996,9 @@ erts_do_exit_process(Process* p, Eterm reason)
     }
 #endif
 
+    if (p->static_flags & ERTS_STC_FLG_SYSTEM_PROC)
+	erl_exit(1, "System process %T terminated: %T\n", p->common.id, reason);
+
 #ifdef ERTS_SMP
     ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p);
     /* By locking all locks (main lock is already locked) when going
@@ -11820,20 +12038,20 @@ erts_do_exit_process(Process* p, Eterm reason)
     ASSERT((ERTS_TRACE_FLAGS(p) & F_INITIAL_TRACE_FLAGS)
 	   == F_INITIAL_TRACE_FLAGS);
 
-    cancel_timer(p);		/* Always cancel timer just in case */
-
-    if (p->u.bif_timers)
-	erts_cancel_bif_timers(p, ERTS_PROC_LOCKS_ALL);
+    ASSERT(erts_proc_read_refc(p) > 0);
+    if (ERTS_PTMR_IS_SET(p)) {
+	erts_cancel_proc_timer(p);
+	ASSERT(erts_proc_read_refc(p) > 0);
+    }
 
     erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL_MINOR);
 
     /*
-     * The p->u.bif_timers of this process can *not* be used anymore;
+     * p->u.initial of this process can *not* be used anymore;
      * will be overwritten by misc termination data.
      */
     p->u.terminate = NULL;
 
-
     erts_continue_exit_process(p);
 }
 
@@ -11858,6 +12076,27 @@ erts_continue_exit_process(Process *p)
 
     ASSERT(ERTS_PROC_IS_EXITING(p));
 
+    ASSERT(erts_proc_read_refc(p) > 0);
+    if (p->bif_timers) {
+	if (erts_cancel_bif_timers(p, p->bif_timers, &p->u.terminate)) {
+	    ASSERT(erts_proc_read_refc(p) > 0);
+	    goto yield;
+	}
+	ASSERT(erts_proc_read_refc(p) > 0);
+	p->bif_timers = NULL;
+    }
+
+    if (p->accessor_bif_timers) {
+	if (erts_detach_accessor_bif_timers(p,
+					    p->accessor_bif_timers,
+					    &p->u.terminate)) {
+	    ASSERT(erts_proc_read_refc(p) > 0);
+	    goto yield;
+	}
+	ASSERT(erts_proc_read_refc(p) > 0);
+	p->accessor_bif_timers = NULL;
+    }
+
 #ifdef ERTS_SMP
     if (p->flags & F_HAVE_BLCKD_MSCHED) {
 	ErtsSchedSuspendResult ssr;
@@ -11951,6 +12190,8 @@ erts_continue_exit_process(Process *p)
 
 	p->scheduler_data->current_process = NULL;
 	p->scheduler_data->free_process = p;
+#else
+	erts_proc_inc_refc(p); /* Decremented in schedule() */
 #endif
 
 	/* Time of death! */
@@ -11969,29 +12210,23 @@ erts_continue_exit_process(Process *p)
     {
 	/* Inactivate and notify free */
 	erts_aint32_t n, e, a = erts_smp_atomic32_read_nob(&p->state);
-#ifdef ERTS_SMP
 	int refc_inced = 0;
-#endif
 	while (1) {
 	    n = e = a;
 	    ASSERT(a & ERTS_PSFLG_EXITING);
 	    n |= ERTS_PSFLG_FREE;
 	    n &= ~ERTS_PSFLG_ACTIVE;
-#ifdef ERTS_SMP
 	    if ((n & ERTS_PSFLG_IN_RUNQ) && !refc_inced) {
-		erts_smp_proc_inc_refc(p);
+		erts_proc_inc_refc(p);
 		refc_inced = 1;
 	    }
-#endif
 	    a = erts_smp_atomic32_cmpxchg_mb(&p->state, n, e);
 	    if (a == e)
 		break;
 	}
 
-#ifdef ERTS_SMP
 	if (refc_inced && !(n & ERTS_PSFLG_IN_RUNQ))
-	    erts_smp_proc_dec_refc(p);
-#endif
+	    erts_proc_dec_refc(p);
     }
     
     dep = ((p->flags & F_DISTRIBUTION)
@@ -12082,64 +12317,6 @@ erts_continue_exit_process(Process *p)
 
 }
 
-/* Callback for process timeout */
-static void
-timeout_proc(Process* p)
-{
-    erts_aint32_t state;
-    BeamInstr** pi = (BeamInstr **) p->def_arg_reg;
-    p->i = *pi;
-    p->flags |= F_TIMO;
-    p->flags &= ~F_INSLPQUEUE;
-
-    state = erts_smp_atomic32_read_acqb(&p->state);
-    if (!(state & ERTS_PSFLG_ACTIVE))
-	schedule_process(p, state, ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS);
-}
-
-
-void
-cancel_timer(Process* p)
-{
-    ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN & erts_proc_lc_my_proc_locks(p));
-    p->flags &= ~(F_INSLPQUEUE|F_TIMO);
-#ifdef ERTS_SMP
-    erts_cancel_smp_ptimer(p->common.u.alive.ptimer);
-#else
-    erts_cancel_timer(&p->common.u.alive.tm);
-#endif
-}
-
-/*
- * Insert a process into the time queue, with a timeout 'timeout' in ms.
- */
-void
-set_timer(Process* p, Uint timeout)
-{
-    ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN & erts_proc_lc_my_proc_locks(p));
-
-    /* check for special case timeout=0 DONT ADD TO time queue */
-    if (timeout == 0) {
-	p->flags |= F_TIMO;
-	return;
-    }
-    p->flags |= F_INSLPQUEUE;
-    p->flags &= ~F_TIMO;
-
-#ifdef ERTS_SMP
-    erts_create_smp_ptimer(&p->common.u.alive.ptimer,
-			   p->common.id,
-			   (ErlTimeoutProc) timeout_proc,
-			   timeout);
-#else
-    erts_set_timer(&p->common.u.alive.tm,
-		  (ErlTimeoutProc) timeout_proc,
-		  NULL,
-		  (void*) p,
-		  timeout);
-#endif
-}
-
 /*
  * Stack dump functions follow.
  */
@@ -12155,7 +12332,7 @@ erts_stack_dump(int to, void *to_arg, Process *p)
     }
     erts_program_counter_info(to, to_arg, p);
     for (sp = p->stop; sp < STACK_START(p); sp++) {
-        yreg = stack_element_dump(to, to_arg, p, sp, yreg);
+        yreg = stack_element_dump(to, to_arg, sp, yreg);
     }
 }
 
@@ -12212,7 +12389,7 @@ print_function_from_pc(int to, void *to_arg, BeamInstr* x)
 }
 
 static int
-stack_element_dump(int to, void *to_arg, Process* p, Eterm* sp, int yreg)
+stack_element_dump(int to, void *to_arg, Eterm* sp, int yreg)
 {
     Eterm x = *sp;
 
@@ -12241,6 +12418,220 @@ stack_element_dump(int to, void *to_arg, Process* p, Eterm* sp, int yreg)
 }
 
 /*
+ * Print scheduler information
+ */
+void
+erts_print_scheduler_info(int to, void *to_arg, ErtsSchedulerData *esdp) {
+    int i;
+    erts_aint32_t flg;
+    Process *p;
+
+    erts_print(to, to_arg, "=scheduler:%u\n", esdp->no);
+
+#ifdef ERTS_SMP
+    flg = erts_smp_atomic32_read_dirty(&esdp->ssi->flags);
+    erts_print(to, to_arg, "Scheduler Sleep Info Flags: ");
+    for (i = 0; i < ERTS_SSI_FLGS_MAX && flg; i++) {
+        erts_aint32_t chk = (1 << i);
+        if (flg & chk) {
+            switch (chk) {
+            case ERTS_SSI_FLG_SLEEPING:
+                erts_print(to, to_arg, "SLEEPING"); break;
+            case ERTS_SSI_FLG_POLL_SLEEPING:
+                erts_print(to, to_arg, "POLL_SLEEPING"); break;
+            case ERTS_SSI_FLG_TSE_SLEEPING:
+                erts_print(to, to_arg, "TSE_SLEEPING"); break;
+            case ERTS_SSI_FLG_WAITING:
+                erts_print(to, to_arg, "WAITING"); break;
+            case ERTS_SSI_FLG_SUSPENDED:
+                erts_print(to, to_arg, "SUSPENDED"); break;
+            default:
+                erts_print(to, to_arg, "UNKNOWN(%d)", flg); break;
+            }
+            if (flg > chk)
+                erts_print(to, to_arg, " | ");
+            flg -= chk;
+        }
+    }
+    erts_print(to, to_arg, "\n");
+#endif
+
+    flg = erts_atomic32_read_dirty(&esdp->ssi->aux_work);
+    erts_print(to, to_arg, "Scheduler Sleep Info Aux Work: ");
+    for (i = 0; i < ERTS_SSI_AUX_WORK_MAX && flg; i++) {
+        erts_aint32_t chk = (1 << i);
+        if (flg & chk) {
+            switch (chk) {
+            case ERTS_SSI_AUX_WORK_DELAYED_AW_WAKEUP:
+                erts_print(to, to_arg, "DELAYED_AW_WAKEUP"); break;
+            case ERTS_SSI_AUX_WORK_DD:
+                erts_print(to, to_arg, "DELAYED_DEALLOC"); break;
+            case ERTS_SSI_AUX_WORK_DD_THR_PRGR:
+                erts_print(to, to_arg, "DELAYED_DEALLOC_THR_PRGR"); break;
+            case ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC:
+                erts_print(to, to_arg, "FIX_ALLOC_DEALLOC"); break;
+            case ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM:
+                erts_print(to, to_arg, "FIX_ALLOC_LOWER_LIM"); break;
+            case ERTS_SSI_AUX_WORK_THR_PRGR_LATER_OP:
+                erts_print(to, to_arg, "THR_PRGR_LATER_OP"); break;
+            case ERTS_SSI_AUX_WORK_CNCLD_TMRS:
+                erts_print(to, to_arg, "CANCELED_TIMERS"); break;
+            case ERTS_SSI_AUX_WORK_CNCLD_TMRS_THR_PRGR:
+                erts_print(to, to_arg, "CANCELED_TIMERS_THR_PRGR"); break;
+            case ERTS_SSI_AUX_WORK_ASYNC_READY:
+                erts_print(to, to_arg, "ASYNC_READY"); break;
+            case ERTS_SSI_AUX_WORK_ASYNC_READY_CLEAN:
+                erts_print(to, to_arg, "ASYNC_READY_CLEAN"); break;
+            case ERTS_SSI_AUX_WORK_MISC_THR_PRGR:
+                erts_print(to, to_arg, "MISC_THR_PRGR"); break;
+            case ERTS_SSI_AUX_WORK_MISC:
+                erts_print(to, to_arg, "MISC"); break;
+            case ERTS_SSI_AUX_WORK_CHECK_CHILDREN:
+                erts_print(to, to_arg, "CHECK_CHILDREN"); break;
+            case ERTS_SSI_AUX_WORK_SET_TMO:
+                erts_print(to, to_arg, "SET_TMO"); break;
+            case ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK:
+                erts_print(to, to_arg, "MSEG_CACHE_CHECK"); break;
+            case ERTS_SSI_AUX_WORK_REAP_PORTS:
+                erts_print(to, to_arg, "REAP_PORTS"); break;
+            default:
+                erts_print(to, to_arg, "UNKNOWN(%d)", flg); break;
+            }
+            if (flg > chk)
+                erts_print(to, to_arg, " | ");
+            flg -= chk;
+        }
+    }
+    erts_print(to, to_arg, "\n");
+
+    erts_print(to, to_arg, "Current Port: ");
+    if (esdp->current_port)
+        erts_print(to, to_arg, "%T", esdp->current_port->common.id);
+    erts_print(to, to_arg, "\n");
+
+    for (i = 0; i < ERTS_NO_PROC_PRIO_LEVELS; i++) {
+        erts_print(to, to_arg, "Run Queue ");
+        switch (i) {
+        case PRIORITY_MAX:
+            erts_print(to, to_arg, "Max ");
+            break;
+        case PRIORITY_HIGH:
+            erts_print(to, to_arg, "High ");
+            break;
+        case PRIORITY_NORMAL:
+            erts_print(to, to_arg, "Normal ");
+            break;
+        case PRIORITY_LOW:
+            erts_print(to, to_arg, "Low ");
+            break;
+        default:
+            erts_print(to, to_arg, "Unknown ");
+            break;
+        }
+        erts_print(to, to_arg, "Length: %d\n",
+                   erts_smp_atomic32_read_dirty(&esdp->run_queue->procs.prio_info[i].len));
+    }
+    erts_print(to, to_arg, "Run Queue Port Length: %d\n",
+               erts_smp_atomic32_read_dirty(&esdp->run_queue->ports.info.len));
+
+    flg = erts_smp_atomic32_read_dirty(&esdp->run_queue->flags);
+    erts_print(to, to_arg, "Run Queue Flags: ");
+    for (i = 0; i < ERTS_RUNQ_FLG_MAX && flg; i++) {
+        erts_aint32_t chk = (1 << i);
+        if (flg & chk) {
+            switch (chk) {
+            case (1 << PRIORITY_MAX):
+                erts_print(to, to_arg, "NONEMPTY_MAX"); break;
+            case (1 << PRIORITY_HIGH):
+                erts_print(to, to_arg, "NONEMPTY_HIGH"); break;
+            case (1 << PRIORITY_NORMAL):
+                erts_print(to, to_arg, "NONEMPTY_NORMAL"); break;
+            case (1 << PRIORITY_LOW):
+                erts_print(to, to_arg, "NONEMPTY_LOW"); break;
+            case (1 << (PRIORITY_MAX + ERTS_RUNQ_FLGS_EMIGRATE_SHFT)):
+                erts_print(to, to_arg, "EMIGRATE_MAX"); break;
+            case (1 << (PRIORITY_HIGH + ERTS_RUNQ_FLGS_EMIGRATE_SHFT)):
+                erts_print(to, to_arg, "EMIGRATE_HIGH"); break;
+            case (1 << (PRIORITY_NORMAL + ERTS_RUNQ_FLGS_EMIGRATE_SHFT)):
+                erts_print(to, to_arg, "EMIGRATE_NORMAL"); break;
+            case (1 << (PRIORITY_LOW + ERTS_RUNQ_FLGS_EMIGRATE_SHFT)):
+                erts_print(to, to_arg, "EMIGRATE_LOW"); break;
+            case (1 << (PRIORITY_MAX + ERTS_RUNQ_FLGS_IMMIGRATE_SHFT)):
+                erts_print(to, to_arg, "IMMIGRATE_MAX"); break;
+            case (1 << (PRIORITY_HIGH + ERTS_RUNQ_FLGS_IMMIGRATE_SHFT)):
+                erts_print(to, to_arg, "IMMIGRATE_HIGH"); break;
+            case (1 << (PRIORITY_NORMAL + ERTS_RUNQ_FLGS_IMMIGRATE_SHFT)):
+                erts_print(to, to_arg, "IMMIGRATE_NORMAL"); break;
+            case (1 << (PRIORITY_LOW + ERTS_RUNQ_FLGS_IMMIGRATE_SHFT)):
+                erts_print(to, to_arg, "IMMIGRATE_LOW"); break;
+            case (1 << (PRIORITY_MAX + ERTS_RUNQ_FLGS_EVACUATE_SHFT)):
+                erts_print(to, to_arg, "EVACUATE_MAX"); break;
+            case (1 << (PRIORITY_HIGH + ERTS_RUNQ_FLGS_EVACUATE_SHFT)):
+                erts_print(to, to_arg, "EVACUATE_HIGH"); break;
+            case (1 << (PRIORITY_NORMAL + ERTS_RUNQ_FLGS_EVACUATE_SHFT)):
+                erts_print(to, to_arg, "EVACUATE_NORMAL"); break;
+            case (1 << (PRIORITY_LOW + ERTS_RUNQ_FLGS_EVACUATE_SHFT)):
+                erts_print(to, to_arg, "EVACUATE_LOW"); break;
+            case ERTS_RUNQ_FLG_OUT_OF_WORK:
+                erts_print(to, to_arg, "OUT_OF_WORK"); break;
+            case ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK:
+                erts_print(to, to_arg, "HALFTIME_OUT_OF_WORK"); break;
+            case ERTS_RUNQ_FLG_SUSPENDED:
+                erts_print(to, to_arg, "SUSPENDED"); break;
+            case ERTS_RUNQ_FLG_CHK_CPU_BIND:
+                erts_print(to, to_arg, "CHK_CPU_BIND"); break;
+            case ERTS_RUNQ_FLG_INACTIVE:
+                erts_print(to, to_arg, "INACTIVE"); break;
+            case ERTS_RUNQ_FLG_NONEMPTY:
+                erts_print(to, to_arg, "NONEMPTY"); break;
+            case ERTS_RUNQ_FLG_PROTECTED:
+                erts_print(to, to_arg, "PROTECTED"); break;
+            default:
+                erts_print(to, to_arg, "UNKNOWN(%d)", flg); break;
+            }
+            if (flg > chk)
+                erts_print(to, to_arg, " | ");
+            flg -= chk;
+        }
+    }
+    erts_print(to, to_arg, "\n");
+
+    /* This *MUST* to be the last information in scheduler block */
+    p = esdp->current_process;
+    erts_print(to, to_arg, "Current Process: ");
+    if (esdp->current_process && !(ERTS_TRACE_FLAGS(p) & F_SENSITIVE)) {
+	flg = erts_smp_atomic32_read_dirty(&p->state);
+	erts_print(to, to_arg, "%T\n", p->common.id);
+
+	erts_print(to, to_arg, "Current Process State: ");
+	erts_dump_process_state(to, to_arg, flg);
+
+	erts_print(to, to_arg, "Current Process Internal State: ");
+	erts_dump_extended_process_state(to, to_arg, flg);
+
+	erts_print(to, to_arg, "Current Process Program counter: %p (", p->i);
+	print_function_from_pc(to, to_arg, p->i);
+	erts_print(to, to_arg, ")\n");
+	erts_print(to, to_arg, "Current Process CP: %p (", p->cp);
+	print_function_from_pc(to, to_arg, p->cp);
+	erts_print(to, to_arg, ")\n");
+
+	/* Getting this stacktrace can segfault if we are very very
+	   unlucky if called while a process is being garbage collected.
+	   Therefore we only call this on other schedulers if we either
+	   have protection against segfaults, or we know that the process
+	   is not garbage collecting. It *should* always be safe to call
+	   on a process owned by us, even if it is currently being garbage
+	   collected.
+	*/
+	erts_print(to, to_arg, "Current Process Limited Stack Trace:\n");
+	erts_limited_stack_trace(to, to_arg, p);
+    } else
+	erts_print(to, to_arg, "\n");
+
+}
+
+/*
  * A nice system halt closing all open port goes as follows:
  * 1) This function schedules the aux work ERTS_SSI_AUX_WORK_REAP_PORTS
  *    on all schedulers, then schedules itself out.
diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h
index f50b217d4a..b1c30e7652 100644
--- a/erts/emulator/beam/erl_process.h
+++ b/erts/emulator/beam/erl_process.h
@@ -52,12 +52,13 @@ typedef struct process Process;
 #include "erl_node_container_utils.h"
 #include "erl_node_tables.h"
 #include "erl_monitors.h"
-#include "erl_bif_timer.h"
+#include "erl_hl_timer.h"
 #include "erl_time.h"
 #include "erl_atom_table.h"
 #include "external.h"
 #include "erl_mseg.h"
 #include "erl_async.h"
+#include "erl_gc.h"
 
 #ifdef HIPE
 #include "hipe_process.h"
@@ -169,6 +170,8 @@ extern int erts_sched_thread_suggested_stack_size;
 #define ERTS_RUNQ_FLG_PROTECTED \
   (((Uint32) 1) << (ERTS_RUNQ_FLG_BASE2 + 6))
 
+#define ERTS_RUNQ_FLG_MAX (ERTS_RUNQ_FLG_BASE2 + 7)
+
 #define ERTS_RUNQ_FLGS_MIGRATION_QMASKS	\
   (ERTS_RUNQ_FLGS_EMIGRATE_QMASK	\
    | ERTS_RUNQ_FLGS_IMMIGRATE_QMASK	\
@@ -251,6 +254,8 @@ typedef enum {
 #define ERTS_SSI_FLG_WAITING		(((erts_aint32_t) 1) << 3)
 #define ERTS_SSI_FLG_SUSPENDED	 	(((erts_aint32_t) 1) << 4)
 
+#define ERTS_SSI_FLGS_MAX                                       5
+
 #define ERTS_SSI_FLGS_SLEEP_TYPE			\
  (ERTS_SSI_FLG_TSE_SLEEPING|ERTS_SSI_FLG_POLL_SLEEPING)
 
@@ -273,14 +278,18 @@ typedef enum {
 #define ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC	(((erts_aint32_t) 1) << 3)
 #define ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM	(((erts_aint32_t) 1) << 4)
 #define ERTS_SSI_AUX_WORK_THR_PRGR_LATER_OP	(((erts_aint32_t) 1) << 5)
-#define ERTS_SSI_AUX_WORK_ASYNC_READY		(((erts_aint32_t) 1) << 6)
-#define ERTS_SSI_AUX_WORK_ASYNC_READY_CLEAN	(((erts_aint32_t) 1) << 7)
-#define ERTS_SSI_AUX_WORK_MISC_THR_PRGR		(((erts_aint32_t) 1) << 8)
-#define ERTS_SSI_AUX_WORK_MISC			(((erts_aint32_t) 1) << 9)
-#define ERTS_SSI_AUX_WORK_CHECK_CHILDREN	(((erts_aint32_t) 1) << 10)
-#define ERTS_SSI_AUX_WORK_SET_TMO		(((erts_aint32_t) 1) << 11)
-#define ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK	(((erts_aint32_t) 1) << 12)
-#define ERTS_SSI_AUX_WORK_REAP_PORTS		(((erts_aint32_t) 1) << 13)
+#define ERTS_SSI_AUX_WORK_CNCLD_TMRS		(((erts_aint32_t) 1) << 6)
+#define ERTS_SSI_AUX_WORK_CNCLD_TMRS_THR_PRGR	(((erts_aint32_t) 1) << 7)
+#define ERTS_SSI_AUX_WORK_ASYNC_READY		(((erts_aint32_t) 1) << 8)
+#define ERTS_SSI_AUX_WORK_ASYNC_READY_CLEAN	(((erts_aint32_t) 1) << 9)
+#define ERTS_SSI_AUX_WORK_MISC_THR_PRGR		(((erts_aint32_t) 1) << 10)
+#define ERTS_SSI_AUX_WORK_MISC			(((erts_aint32_t) 1) << 11)
+#define ERTS_SSI_AUX_WORK_CHECK_CHILDREN	(((erts_aint32_t) 1) << 12)
+#define ERTS_SSI_AUX_WORK_SET_TMO		(((erts_aint32_t) 1) << 13)
+#define ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK	(((erts_aint32_t) 1) << 14)
+#define ERTS_SSI_AUX_WORK_REAP_PORTS		(((erts_aint32_t) 1) << 15)
+
+#define ERTS_SSI_AUX_WORK_MAX                                           16
 
 typedef struct ErtsSchedulerSleepInfo_ ErtsSchedulerSleepInfo;
 
@@ -341,7 +350,7 @@ typedef struct {
 } ErtsRunQueueInfo;
 
 
-#ifdef HAVE_GETHRTIME
+#ifdef ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT
 #  undef ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT_OPT
 #  define ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT_OPT 1
 #endif
@@ -456,19 +465,21 @@ typedef union {
 
 extern ErtsAlignedRunQueue *erts_aligned_run_queues;
 
-#define ERTS_PROC_REDUCTIONS_EXECUTED(RQ, PRIO, REDS, AREDS)	\
+#define ERTS_PROC_REDUCTIONS_EXECUTED(SD, RQ, PRIO, REDS, AREDS)\
 do {								\
     (RQ)->procs.reductions += (AREDS);				\
     (RQ)->procs.prio_info[(PRIO)].reds += (REDS);		\
     (RQ)->check_balance_reds -= (REDS);				\
     (RQ)->wakeup_other_reds += (AREDS);				\
+    (SD)->check_time_reds += (AREDS);				\
 } while (0)
 
-#define ERTS_PORT_REDUCTIONS_EXECUTED(RQ, REDS)			\
+#define ERTS_PORT_REDUCTIONS_EXECUTED(SD, RQ, REDS)		\
 do {								\
     (RQ)->ports.info.reds += (REDS);				\
     (RQ)->check_balance_reds -= (REDS);				\
     (RQ)->wakeup_other_reds += (REDS);				\
+    (SD)->check_time_reds += (REDS);				\
 } while (0)
 
 typedef struct {
@@ -483,11 +494,6 @@ typedef struct {
 } ErtsSchedWallTime;
 
 typedef struct {
-  Uint64 reclaimed;
-  Uint64 garbage_cols;
-} ErtsGCInfo;
-
-typedef struct {
     int sched;
     erts_aint32_t aux_work;
 } ErtsDelayedAuxWorkWakeupJob;
@@ -514,6 +520,9 @@ typedef struct {
     } dd;
     struct {
 	ErtsThrPrgrVal thr_prgr;
+    } cncld_tmrs;
+    struct {
+	ErtsThrPrgrVal thr_prgr;
 	UWord size;
 	ErtsThrPrgrLaterOp *first;
 	ErtsThrPrgrLaterOp *last;
@@ -562,6 +571,9 @@ struct ErtsSchedulerData_ {
     Eterm* x_reg_array;		/* X registers */
     FloatDef* f_reg_array;	/* Floating point registers. */
 
+    ErtsTimerWheel *timer_wheel;
+    ErtsNextTimeoutRef next_tmo_ref;
+    ErtsHLTimerService *timer_service;
 #ifdef ERTS_SMP
     ethr_tid tid;		/* Thread id */
     struct erl_bits_state erl_bits_state; /* erl_bits.c state */
@@ -588,6 +600,13 @@ struct ErtsSchedulerData_ {
     ErtsAuxWorkData aux_work_data;
     ErtsAtomCacheMap atom_cache_map;
 
+    ErtsMonotonicTime last_monotonic_time;
+    int check_time_reds;
+
+    Uint32 thr_id;
+    Uint64 unique;
+    Uint64 ref;
+
     ErtsSchedAllocData alloc_data;
 
     Uint64 reductions;
@@ -905,10 +924,8 @@ struct process {
 
     ErlMessageQueue msg;	/* Message queue */
 
-    union {
-	ErtsBifTimer *bif_timers;	/* Bif timers aiming at this process */
-	void *terminate;
-    } u;
+    ErtsBifTimers *bif_timers;	/* Bif timers aiming at this process */
+    ErtsBifTimers *accessor_bif_timers;	/* Accessor bif timers */
 
     ProcDict  *dictionary;       /* Process dictionary, may be NULL */
 
@@ -919,9 +936,12 @@ struct process {
 #ifdef USE_VM_PROBES
     Eterm dt_utag;              /* Place to store the dynamc trace user tag */
     Uint dt_utag_flags;         /* flag field for the dt_utag */
-#endif       
-    BeamInstr initial[3];	/* Initial module(0), function(1), arity(2), often used instead
+#endif
+    union {
+	void *terminate;
+	BeamInstr initial[3];	/* Initial module(0), function(1), arity(2), often used instead
 				   of pointer to funcinfo instruction, hence the BeamInstr datatype */
+    } u;
     BeamInstr* current;		/* Current Erlang function, part of the funcinfo:
 				 * module(0), function(1), arity(2)
 				 * (module and functions are tagged atoms;
@@ -934,6 +954,8 @@ struct process {
     Eterm parent;		/* Pid of process that created this process. */
     erts_approx_time_t approx_started; /* Time when started. */
 
+    Uint32 static_flags;        /* Flags that do *not* change */
+
     /* This is the place, where all fields that differs between memory
      * architectures, have gone to.
      */
@@ -1079,6 +1101,9 @@ void erts_check_for_holes(Process* p);
 #define ERTS_PSFLG_DIRTY_IO_PROC	ERTS_PSFLG_BIT(19)
 #define ERTS_PSFLG_DIRTY_CPU_PROC_IN_Q	ERTS_PSFLG_BIT(20)
 #define ERTS_PSFLG_DIRTY_IO_PROC_IN_Q	ERTS_PSFLG_BIT(21)
+#define ERTS_PSFLG_MAX  (ERTS_PSFLGS_ZERO_BIT_OFFSET + 22)
+#else
+#define ERTS_PSFLG_MAX  (ERTS_PSFLGS_ZERO_BIT_OFFSET + 18)
 #endif
 
 #define ERTS_PSFLGS_IN_PRQ_MASK 	(ERTS_PSFLG_IN_PRQ_MAX		\
@@ -1093,6 +1118,11 @@ void erts_check_for_holes(Process* p);
 #define ERTS_PSFLGS_GET_PRQ_PRIO(PSFLGS) \
     (((PSFLGS) >> ERTS_PSFLGS_USR_PRIO_OFFSET) & ERTS_PSFLGS_PRIO_MASK)
 
+/*
+ * Static flags that do not change after process creation.
+ */
+#define ERTS_STC_FLG_SYSTEM_PROC	(((Uint32) 1) << 0)
+
 /* The sequential tracing token is a tuple of size 5:
  *
  *    {Flags, Label, Serial, Sender}
@@ -1120,6 +1150,7 @@ void erts_check_for_holes(Process* p);
 #define SPO_LINK 1
 #define SPO_USE_ARGS 2
 #define SPO_MONITOR 4
+#define SPO_SYSTEM_PROC 8
 
 /*
  * The following struct contains options for a process to be spawned.
@@ -1242,8 +1273,6 @@ extern struct erts_system_profile_flags_t erts_system_profile_flags;
 #  define F_INITIAL_TRACE_FLAGS 0
 #endif
 
-
-
 #define TRACEE_FLAGS ( F_TRACE_PROCS | F_TRACE_CALLS \
 		     | F_TRACE_SOS |  F_TRACE_SOS1| F_TRACE_RECEIVE  \
 		     | F_TRACE_SOL | F_TRACE_SOL1 | F_TRACE_SEND \
@@ -1277,12 +1306,14 @@ extern struct erts_system_profile_flags_t erts_system_profile_flags;
 #define ERTS_XSIG_FLG_IGN_KILL		(((Uint32) 1) << 0)
 #define ERTS_XSIG_FLG_NO_IGN_NORMAL	(((Uint32) 1) << 1)
 
-#define CANCEL_TIMER(p) \
-    do { \
-	if ((p)->flags & (F_INSLPQUEUE)) \
-	    cancel_timer(p); \
-	else \
-	    (p)->flags &= ~F_TIMO; \
+#define CANCEL_TIMER(P)					\
+    do {						\
+	if ((P)->flags & (F_INSLPQUEUE|F_TIMO)) {	\
+	    if ((P)->flags & F_INSLPQUEUE)		\
+		erts_cancel_proc_timer((P));		\
+	    else					\
+		(P)->flags &= ~F_TIMO;			\
+	}						\
     } while (0)
 
 #if defined(ERTS_DIRTY_SCHEDULERS) && defined(ERTS_SMP)
@@ -1569,6 +1600,9 @@ Eterm erts_multi_scheduling_blockers(Process *);
 void erts_start_schedulers(void);
 void erts_alloc_notify_delayed_dealloc(int);
 void erts_alloc_ensure_handle_delayed_dealloc_call(int);
+#ifdef ERTS_SMP
+void erts_notify_canceled_timer(ErtsSchedulerData *, int);
+#endif
 void erts_smp_notify_check_children_needed(void);
 #endif
 #if ERTS_USE_ASYNC_READY_Q
@@ -1603,8 +1637,6 @@ void erts_schedule_misc_op(void (*)(void *), void *);
 Eterm erl_create_process(Process*, Eterm, Eterm, Eterm, ErlSpawnOpts*);
 void erts_do_exit_process(Process*, Eterm);
 void erts_continue_exit_process(Process *);
-void set_timer(Process*, Uint);
-void cancel_timer(Process*);
 /* Begin System profile */
 Uint erts_runnable_process_count(void);
 /* End System profile */
@@ -1614,7 +1646,11 @@ void erts_cleanup_empty_process(Process* p);
 void erts_debug_verify_clean_empty_process(Process* p);
 #endif
 void erts_stack_dump(int to, void *to_arg, Process *);
+void erts_limited_stack_trace(int to, void *to_arg, Process *);
 void erts_program_counter_info(int to, void *to_arg, Process *);
+void erts_print_scheduler_info(int to, void *to_arg, ErtsSchedulerData *esdp);
+void erts_dump_extended_process_state(int to, void *to_arg, erts_aint32_t psflg);
+void erts_dump_process_state(int to, void *to_arg, erts_aint32_t psflg);
 
 Eterm erts_get_process_priority(Process *p);
 Eterm erts_set_process_priority(Process *p, Eterm prio);
@@ -2219,6 +2255,8 @@ extern int erts_disable_proc_not_running_opt;
 
 void erts_smp_notify_inc_runq(ErtsRunQueue *runq);
 
+void erts_interupt_aux_thread_timed(ErtsMonotonicTime timeout_time);
+
 #ifdef ERTS_SMP
 void erts_sched_finish_poke(ErtsSchedulerSleepInfo *, erts_aint32_t);
 ERTS_GLB_INLINE void erts_sched_poke(ErtsSchedulerSleepInfo *ssi);
diff --git a/erts/emulator/beam/erl_process_dict.c b/erts/emulator/beam/erl_process_dict.c
index af20b26b15..00761f2d0e 100644
--- a/erts/emulator/beam/erl_process_dict.c
+++ b/erts/emulator/beam/erl_process_dict.c
@@ -82,6 +82,7 @@
 static void pd_hash_erase(Process *p, Eterm id, Eterm *ret);
 static void pd_hash_erase_all(Process *p);
 static Eterm pd_hash_get_keys(Process *p, Eterm value);
+static Eterm pd_hash_get_all_keys(Process *p, ProcDict *pd);
 static Eterm pd_hash_get_all(Process *p, ProcDict *pd);
 static Eterm pd_hash_put(Process *p, Eterm id, Eterm value);
 
@@ -275,6 +276,16 @@ BIF_RETTYPE get_1(BIF_ALIST_1)
     BIF_RET(ret);
 }
 
+BIF_RETTYPE get_keys_0(BIF_ALIST_0)
+{
+    Eterm ret;
+
+    PD_CHECK(BIF_P->dictionary);
+    ret = pd_hash_get_all_keys(BIF_P,BIF_P->dictionary);
+    PD_CHECK(BIF_P->dictionary);
+    BIF_RET(ret);
+}
+
 BIF_RETTYPE get_keys_1(BIF_ALIST_1)
 {
     Eterm ret;
@@ -412,6 +423,47 @@ Eterm erts_pd_hash_get(Process *p, Eterm id)
     return am_undefined;
 }
 
+#define PD_GET_TKEY(Dst,Src)                            \
+do {                                                    \
+    ASSERT(is_tuple((Src)));                            \
+    ASSERT(arityval(*((Eterm*)tuple_val((Src)))) == 2); \
+    (Dst) = ((Eterm*)tuple_val((Src)))[1];              \
+} while(0)
+
+static Eterm pd_hash_get_all_keys(Process *p, ProcDict *pd) {
+    Eterm* hp;
+    Eterm res = NIL;
+    Eterm tmp, tmp2;
+    unsigned int i;
+    unsigned int num;
+
+    if (pd == NULL) {
+	return res;
+    }
+
+    num = HASH_RANGE(pd);
+    hp = HAlloc(p, pd->numElements * 2);
+
+    for (i = 0; i < num; ++i) {
+	tmp = ARRAY_GET(pd, i);
+	if (is_boxed(tmp)) {
+	    PD_GET_TKEY(tmp,tmp);
+	    res = CONS(hp, tmp, res);
+	    hp += 2;
+	} else if (is_list(tmp)) {
+	    while (tmp != NIL) {
+		tmp2 = TCAR(tmp);
+		PD_GET_TKEY(tmp2,tmp2);
+		res = CONS(hp, tmp2, res);
+		hp += 2;
+		tmp = TCDR(tmp);
+	    }
+	}
+    }
+    return res;
+}
+#undef PD_GET_TKEY
+
 static Eterm pd_hash_get_keys(Process *p, Eterm value) 
 {
     Eterm *hp;
diff --git a/erts/emulator/beam/erl_process_dump.c b/erts/emulator/beam/erl_process_dump.c
index 2f3cf23b00..36bb6b2f0e 100644
--- a/erts/emulator/beam/erl_process_dump.c
+++ b/erts/emulator/beam/erl_process_dump.c
@@ -43,8 +43,9 @@ static void dump_process_info(int to, void *to_arg, Process *p);
 static void dump_element(int to, void *to_arg, Eterm x);
 static void dump_dist_ext(int to, void *to_arg, ErtsDistExternal *edep);
 static void dump_element_nl(int to, void *to_arg, Eterm x);
-static int stack_element_dump(int to, void *to_arg, Process* p, Eterm* sp,
+static int stack_element_dump(int to, void *to_arg, Eterm* sp,
 			      int yreg);
+static void stack_trace_dump(int to, void *to_arg, Eterm* sp);
 static void print_function_from_pc(int to, void *to_arg, BeamInstr* x);
 static void heap_dump(int to, void *to_arg, Eterm x);
 static void dump_binaries(int to, void *to_arg, Binary* root);
@@ -148,7 +149,7 @@ dump_process_info(int to, void *to_arg, Process *p)
     if ((ERTS_TRACE_FLAGS(p) & F_SENSITIVE) == 0) {
 	erts_print(to, to_arg, "=proc_stack:%T\n", p->common.id);
 	for (sp = p->stop; sp < STACK_START(p); sp++) {
-	    yreg = stack_element_dump(to, to_arg, p, sp, yreg);
+	    yreg = stack_element_dump(to, to_arg, sp, yreg);
 	}
 
 	erts_print(to, to_arg, "=proc_heap:%T\n", p->common.id);
@@ -243,9 +244,65 @@ dump_element_nl(int to, void *to_arg, Eterm x)
     erts_putc(to, to_arg, '\n');
 }
 
+static void
+stack_trace_dump(int to, void *to_arg, Eterm *sp) {
+    Eterm x = *sp;
+    if (is_CP(x)) {
+        erts_print(to, to_arg, "%p:", sp);
+        erts_print(to, to_arg, "SReturn addr 0x%X (", cp_val(x));
+        print_function_from_pc(to, to_arg, cp_val(x));
+        erts_print(to, to_arg, ")\n");
+    }
+}
+
+void
+erts_limited_stack_trace(int to, void *to_arg, Process *p)
+{
+    Eterm* sp;
+
+
+    if (ERTS_TRACE_FLAGS(p) & F_SENSITIVE) {
+	return;
+    }
+
+    if (STACK_START(p) < STACK_TOP(p)) {
+        return;
+    }
+
+    if ((STACK_START(p) - STACK_TOP(p)) < 512) {
+        if (erts_sys_is_area_readable((char*)STACK_TOP(p),
+                                      (char*)STACK_START(p)))
+            for (sp = STACK_TOP(p); sp < STACK_START(p); sp++)
+                stack_trace_dump(to, to_arg, sp);
+        else
+            erts_print(to, to_arg, "Could not read from stack memory: %p - %p\n",
+                       STACK_TOP(p), STACK_START(p));
+    } else {
+        sp = STACK_TOP(p);
+        if (erts_sys_is_area_readable((char*)STACK_TOP(p),
+                                      (char*)(STACK_TOP(p) + 25)))
+            for (; sp < (STACK_TOP(p) + 256); sp++)
+                stack_trace_dump(to, to_arg, sp);
+        else
+            erts_print(to, to_arg, "Could not read from stack memory: %p - %p\n",
+                       STACK_TOP(p), STACK_TOP(p) + 256);
+
+        erts_print(to, to_arg, "%p: skipping %d frames\n",
+                   sp, STACK_START(p) - STACK_TOP(p) - 512);
+
+        if (erts_sys_is_area_readable((char*)(STACK_START(p) - 256),
+                                      (char*)STACK_START(p)))
+            for (sp = STACK_START(p) - 256; sp < STACK_START(p); sp++)
+                stack_trace_dump(to, to_arg, sp);
+        else
+            erts_print(to, to_arg, "Could not read from stack memory: %p - %p\n",
+                       STACK_START(p) - 256, STACK_START(p));
+    }
+
+}
 
 static int
-stack_element_dump(int to, void *to_arg, Process* p, Eterm* sp, int yreg)
+stack_element_dump(int to, void *to_arg, Eterm* sp, int yreg)
 {
     Eterm x = *sp;
 
@@ -508,3 +565,114 @@ dump_externally(int to, void *to_arg, Eterm term)
 	erts_print(to, to_arg, "%02X", *s++);
     }
 }
+
+void erts_dump_process_state(int to, void *to_arg, erts_aint32_t psflg) {
+    if (psflg & ERTS_PSFLG_FREE)
+	erts_print(to, to_arg, "Non Existing\n"); /* Should never happen */
+    else if (psflg & ERTS_PSFLG_EXITING)
+	erts_print(to, to_arg, "Exiting\n");
+    else if (psflg & ERTS_PSFLG_GC) {
+	erts_print(to, to_arg, "Garbing\n");
+    }
+    else if (psflg & ERTS_PSFLG_SUSPENDED)
+	erts_print(to, to_arg, "Suspended\n");
+    else if (psflg & ERTS_PSFLG_RUNNING) {
+	erts_print(to, to_arg, "Running\n");
+    }
+    else if (psflg & ERTS_PSFLG_ACTIVE)
+	erts_print(to, to_arg, "Scheduled\n");
+    else
+	erts_print(to, to_arg, "Waiting\n");
+}
+
+void
+erts_dump_extended_process_state(int to, void *to_arg, erts_aint32_t psflg) {
+
+    int i;
+
+    switch (ERTS_PSFLGS_GET_ACT_PRIO(psflg)) {
+    case PRIORITY_MAX: erts_print(to, to_arg, "ACT_PRIO_MAX | "); break;
+    case PRIORITY_HIGH: erts_print(to, to_arg, "ACT_PRIO_HIGH | "); break;
+    case PRIORITY_NORMAL: erts_print(to, to_arg, "ACT_PRIO_NORMAL | "); break;
+    case PRIORITY_LOW: erts_print(to, to_arg, "ACT_PRIO_LOW | "); break;
+    }
+    switch (ERTS_PSFLGS_GET_USR_PRIO(psflg)) {
+    case PRIORITY_MAX: erts_print(to, to_arg, "USR_PRIO_MAX | "); break;
+    case PRIORITY_HIGH: erts_print(to, to_arg, "USR_PRIO_HIGH | "); break;
+    case PRIORITY_NORMAL: erts_print(to, to_arg, "USR_PRIO_NORMAL | "); break;
+    case PRIORITY_LOW: erts_print(to, to_arg, "USR_PRIO_LOW | "); break;
+    }
+    switch (ERTS_PSFLGS_GET_PRQ_PRIO(psflg)) {
+    case PRIORITY_MAX: erts_print(to, to_arg, "PRQ_PRIO_MAX"); break;
+    case PRIORITY_HIGH: erts_print(to, to_arg, "PRQ_PRIO_HIGH"); break;
+    case PRIORITY_NORMAL: erts_print(to, to_arg, "PRQ_PRIO_NORMAL"); break;
+    case PRIORITY_LOW: erts_print(to, to_arg, "PRQ_PRIO_LOW"); break;
+    }
+
+    psflg &= ~(ERTS_PSFLGS_ACT_PRIO_MASK |
+               ERTS_PSFLGS_USR_PRIO_MASK |
+               ERTS_PSFLGS_PRQ_PRIO_MASK);
+
+    if (psflg)
+        erts_print(to, to_arg, " | ");
+
+    for (i = 0; i < ERTS_PSFLG_MAX && psflg; i++) {
+        erts_aint32_t chk = (1 << i);
+        if (psflg & chk) {
+            switch (chk) {
+            case ERTS_PSFLG_IN_PRQ_MAX:
+                erts_print(to, to_arg, "IN_PRQ_MAX"); break;
+            case ERTS_PSFLG_IN_PRQ_HIGH:
+                erts_print(to, to_arg, "IN_PRQ_HIGH"); break;
+            case ERTS_PSFLG_IN_PRQ_NORMAL:
+                erts_print(to, to_arg, "IN_PRQ_NORMAL"); break;
+            case ERTS_PSFLG_IN_PRQ_LOW:
+                erts_print(to, to_arg, "IN_PRQ_LOW"); break;
+            case ERTS_PSFLG_FREE:
+                erts_print(to, to_arg, "FREE"); break;
+            case ERTS_PSFLG_EXITING:
+                erts_print(to, to_arg, "EXITING"); break;
+            case ERTS_PSFLG_PENDING_EXIT:
+                erts_print(to, to_arg, "PENDING_EXIT"); break;
+            case ERTS_PSFLG_ACTIVE:
+                erts_print(to, to_arg, "ACTIVE"); break;
+            case ERTS_PSFLG_IN_RUNQ:
+                erts_print(to, to_arg, "IN_RUNQ"); break;
+            case ERTS_PSFLG_RUNNING:
+                erts_print(to, to_arg, "RUNNING"); break;
+            case ERTS_PSFLG_SUSPENDED:
+                erts_print(to, to_arg, "SUSPENDED"); break;
+            case ERTS_PSFLG_GC:
+                erts_print(to, to_arg, "GC"); break;
+            case ERTS_PSFLG_BOUND:
+                erts_print(to, to_arg, "BOUND"); break;
+            case ERTS_PSFLG_TRAP_EXIT:
+                erts_print(to, to_arg, "TRAP_EXIT"); break;
+            case ERTS_PSFLG_ACTIVE_SYS:
+                erts_print(to, to_arg, "ACTIVE_SYS"); break;
+            case ERTS_PSFLG_RUNNING_SYS:
+                erts_print(to, to_arg, "RUNNING_SYS"); break;
+            case ERTS_PSFLG_PROXY:
+                erts_print(to, to_arg, "PROXY"); break;
+            case ERTS_PSFLG_DELAYED_SYS:
+                erts_print(to, to_arg, "DELAYED_SYS"); break;
+#ifdef ERTS_DIRTY_SCHEDULERS
+            case ERTS_PSFLG_DIRTY_CPU_PROC:
+                erts_print(to, to_arg, "DIRTY_CPU_PROC"); break;
+            case ERTS_PSFLG_DIRTY_IO_PROC:
+                erts_print(to, to_arg, "DIRTY_IO_PROC"); break;
+            case ERTS_PSFLG_DIRTY_CPU_PROC_IN_Q:
+                erts_print(to, to_arg, "DIRTY_CPU_PROC_IN_Q"); break;
+            case ERTS_PSFLG_DIRTY_IO_PROC_IN_Q:
+                erts_print(to, to_arg, "DIRTY_IO_PROC_IN_Q"); break;
+#endif
+            default:
+                erts_print(to, to_arg, "UNKNOWN(%d)", chk); break;
+            }
+            if (psflg > chk)
+                erts_print(to, to_arg, " | ");
+            psflg -= chk;
+        }
+    }
+    erts_print(to, to_arg, "\n");
+}
diff --git a/erts/emulator/beam/erl_process_lock.c b/erts/emulator/beam/erl_process_lock.c
index 82cc68222d..fff267ff2a 100644
--- a/erts/emulator/beam/erl_process_lock.c
+++ b/erts/emulator/beam/erl_process_lock.c
@@ -103,6 +103,7 @@ static struct {
     Sint16 proc_lock_main;
     Sint16 proc_lock_link;
     Sint16 proc_lock_msgq;
+    Sint16 proc_lock_btm;
     Sint16 proc_lock_status;
 } lc_id;
 #endif
@@ -145,6 +146,7 @@ erts_init_proc_lock(int cpus)
     lc_id.proc_lock_main	= erts_lc_get_lock_order_id("proc_main");
     lc_id.proc_lock_link	= erts_lc_get_lock_order_id("proc_link");
     lc_id.proc_lock_msgq	= erts_lc_get_lock_order_id("proc_msgq");
+    lc_id.proc_lock_btm		= erts_lc_get_lock_order_id("proc_btm");
     lc_id.proc_lock_status	= erts_lc_get_lock_order_id("proc_status");
 #endif
 }
@@ -707,7 +709,7 @@ proc_safelock(int is_managed,
 	    need_locks1 |= unlock_locks;
 	    if (!is_managed && !have_locks1) {
 		refc1 = 1;
-		erts_smp_proc_inc_refc(p1);
+		erts_proc_inc_refc(p1);
 	    }
 	    erts_smp_proc_unlock(p1, unlock_locks);
 	}
@@ -717,7 +719,7 @@ proc_safelock(int is_managed,
 	    need_locks2 |= unlock_locks;
 	    if (!is_managed && !have_locks2) {
 		refc2 = 1;
-		erts_smp_proc_inc_refc(p2);
+		erts_proc_inc_refc(p2);
 	    }
 	    erts_smp_proc_unlock(p2, unlock_locks);
 	}
@@ -798,9 +800,9 @@ proc_safelock(int is_managed,
 
     if (!is_managed) {
 	if (refc1)
-	    erts_smp_proc_dec_refc(p1);
+	    erts_proc_dec_refc(p1);
 	if (refc2)
-	    erts_smp_proc_dec_refc(p2);
+	    erts_proc_dec_refc(p2);
     }
 }
 
@@ -861,8 +863,8 @@ erts_pid2proc_opt(Process *c_p,
 	    return NULL;
 	need_locks &= ~c_p_have_locks;
 	if (!need_locks) {
-	    if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
-		erts_smp_proc_inc_refc(c_p);
+	    if (flags & ERTS_P2P_FLG_INC_REFC)
+		erts_proc_inc_refc(c_p);
 	    return c_p;
 	}
     }
@@ -875,8 +877,8 @@ erts_pid2proc_opt(Process *c_p,
 	if (proc->common.id != pid)
 	    proc = NULL;
 	else if (!need_locks) {
-	    if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
-		erts_smp_proc_inc_refc(proc);
+	    if (flags & ERTS_P2P_FLG_INC_REFC)
+		erts_proc_inc_refc(proc);
 	}
 	else {
 	    int busy;
@@ -916,8 +918,8 @@ erts_pid2proc_opt(Process *c_p,
 #endif
 
 	    if (!busy) {
-		if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
-		    erts_smp_proc_inc_refc(proc);
+		if (flags & ERTS_P2P_FLG_INC_REFC)
+		    erts_proc_inc_refc(proc);
 
 #if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_ENABLE_LOCK_COUNT)
 	    	/* all is great */
@@ -932,8 +934,8 @@ erts_pid2proc_opt(Process *c_p,
 		    proc = ERTS_PROC_LOCK_BUSY;
 		else {
 		    int managed;
-		    if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
-			erts_smp_proc_inc_refc(proc);
+		    if (flags & ERTS_P2P_FLG_INC_REFC)
+			erts_proc_inc_refc(proc);
 
 #if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_ENABLE_LOCK_COUNT)
 		    erts_lcnt_proc_lock_unaquire(&proc->lock, lcnt_locks);
@@ -941,7 +943,7 @@ erts_pid2proc_opt(Process *c_p,
 
 		    managed = dhndl == ERTS_THR_PRGR_DHANDLE_MANAGED;
 		    if (!managed) {
-			erts_smp_proc_inc_refc(proc);
+			erts_proc_inc_refc(proc);
 			erts_thr_progress_unmanaged_continue(dhndl);
 			dec_refc_proc = proc;
 
@@ -978,14 +980,14 @@ erts_pid2proc_opt(Process *c_p,
 
 	erts_smp_proc_unlock(proc, need_locks);
 
-	if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
+	if (flags & ERTS_P2P_FLG_INC_REFC)
 	    dec_refc_proc = proc;
 	proc = NULL;
 
     }
 
     if (dec_refc_proc)
-	erts_smp_proc_dec_refc(dec_refc_proc);
+	erts_proc_dec_refc(dec_refc_proc);
 
 #if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_PROC_LOCK_DEBUG)
     ERTS_LC_ASSERT(!proc
@@ -1038,6 +1040,11 @@ erts_proc_lock_init(Process *p)
 #ifdef ERTS_ENABLE_LOCK_CHECK
     erts_lc_trylock(1, &p->lock.msgq.lc);
 #endif
+    erts_mtx_init_x(&p->lock.btm, "proc_btm", p->common.id, do_lock_count);
+    ethr_mutex_lock(&p->lock.btm.mtx);
+#ifdef ERTS_ENABLE_LOCK_CHECK
+    erts_lc_trylock(1, &p->lock.btm.lc);
+#endif
     erts_mtx_init_x(&p->lock.status, "proc_status", p->common.id,
 		    do_lock_count);
     ethr_mutex_lock(&p->lock.status.mtx);
@@ -1045,7 +1052,6 @@ erts_proc_lock_init(Process *p)
     erts_lc_trylock(1, &p->lock.status.lc);
 #endif
 #endif
-    erts_atomic32_init_nob(&p->lock.refc, 1);
 #ifdef ERTS_PROC_LOCK_DEBUG
     for (i = 0; i <= ERTS_PROC_LOCK_MAX_BIT; i++)
 	erts_smp_atomic32_init_nob(&p->lock.locked[i], (erts_aint32_t) 1);
@@ -1064,6 +1070,7 @@ erts_proc_lock_fin(Process *p)
     erts_mtx_destroy(&p->lock.main);
     erts_mtx_destroy(&p->lock.link);
     erts_mtx_destroy(&p->lock.msgq);
+    erts_mtx_destroy(&p->lock.btm);
     erts_mtx_destroy(&p->lock.status);
 #endif
 #if defined(ERTS_ENABLE_LOCK_COUNT) && defined(ERTS_SMP)
@@ -1079,17 +1086,20 @@ void erts_lcnt_proc_lock_init(Process *p) {
     if (p->common.id != ERTS_INVALID_PID) {
 	erts_lcnt_init_lock_x(&(p->lock.lcnt_main),   "proc_main",   ERTS_LCNT_LT_PROCLOCK, p->common.id);
 	erts_lcnt_init_lock_x(&(p->lock.lcnt_msgq),   "proc_msgq",   ERTS_LCNT_LT_PROCLOCK, p->common.id);
+	erts_lcnt_init_lock_x(&(p->lock.lcnt_btm),    "proc_btm",   ERTS_LCNT_LT_PROCLOCK, p->common.id);
 	erts_lcnt_init_lock_x(&(p->lock.lcnt_link),   "proc_link",   ERTS_LCNT_LT_PROCLOCK, p->common.id);
 	erts_lcnt_init_lock_x(&(p->lock.lcnt_status), "proc_status", ERTS_LCNT_LT_PROCLOCK, p->common.id);
     } else {
 	erts_lcnt_init_lock(&(p->lock.lcnt_main),   "proc_main",   ERTS_LCNT_LT_PROCLOCK);
 	erts_lcnt_init_lock(&(p->lock.lcnt_msgq),   "proc_msgq",   ERTS_LCNT_LT_PROCLOCK);
+	erts_lcnt_init_lock(&(p->lock.lcnt_btm),    "proc_btm",   ERTS_LCNT_LT_PROCLOCK);
 	erts_lcnt_init_lock(&(p->lock.lcnt_link),   "proc_link",   ERTS_LCNT_LT_PROCLOCK);
 	erts_lcnt_init_lock(&(p->lock.lcnt_status), "proc_status", ERTS_LCNT_LT_PROCLOCK);
     }
     } else {
 	sys_memzero(&(p->lock.lcnt_main), sizeof(p->lock.lcnt_main));
 	sys_memzero(&(p->lock.lcnt_msgq), sizeof(p->lock.lcnt_msgq));
+	sys_memzero(&(p->lock.lcnt_btm), sizeof(p->lock.lcnt_btm));
 	sys_memzero(&(p->lock.lcnt_link), sizeof(p->lock.lcnt_link));
 	sys_memzero(&(p->lock.lcnt_status), sizeof(p->lock.lcnt_status));
     }
@@ -1099,6 +1109,7 @@ void erts_lcnt_proc_lock_init(Process *p) {
 void erts_lcnt_proc_lock_destroy(Process *p) {
     erts_lcnt_destroy_lock(&(p->lock.lcnt_main));
     erts_lcnt_destroy_lock(&(p->lock.lcnt_msgq));
+    erts_lcnt_destroy_lock(&(p->lock.lcnt_btm));
     erts_lcnt_destroy_lock(&(p->lock.lcnt_link));
     erts_lcnt_destroy_lock(&(p->lock.lcnt_status));
 }
@@ -1111,6 +1122,9 @@ void erts_lcnt_proc_lock(erts_proc_lock_t *lock, ErtsProcLocks locks) {
     if (locks & ERTS_PROC_LOCK_MSGQ) {
         erts_lcnt_lock(&(lock->lcnt_msgq));
     }
+    if (locks & ERTS_PROC_LOCK_BTM) {
+        erts_lcnt_lock(&(lock->lcnt_btm));
+    }
     if (locks & ERTS_PROC_LOCK_LINK) {
 	erts_lcnt_lock(&(lock->lcnt_link));
     }
@@ -1128,6 +1142,9 @@ void erts_lcnt_proc_lock_post_x(erts_proc_lock_t *lock, ErtsProcLocks locks, cha
     if (locks & ERTS_PROC_LOCK_MSGQ) {
         erts_lcnt_lock_post_x(&(lock->lcnt_msgq), file, line);
     }
+    if (locks & ERTS_PROC_LOCK_BTM) {
+        erts_lcnt_lock_post_x(&(lock->lcnt_btm), file, line);
+    }
     if (locks & ERTS_PROC_LOCK_LINK) {
 	erts_lcnt_lock_post_x(&(lock->lcnt_link), file, line);
     }
@@ -1145,6 +1162,9 @@ void erts_lcnt_proc_lock_unaquire(erts_proc_lock_t *lock, ErtsProcLocks locks) {
     if (locks & ERTS_PROC_LOCK_MSGQ) {
         erts_lcnt_lock_unaquire(&(lock->lcnt_msgq));
     }
+    if (locks & ERTS_PROC_LOCK_BTM) {
+        erts_lcnt_lock_unaquire(&(lock->lcnt_btm));
+    }
     if (locks & ERTS_PROC_LOCK_LINK) {
 	erts_lcnt_lock_unaquire(&(lock->lcnt_link));
     }
@@ -1162,6 +1182,9 @@ void erts_lcnt_proc_unlock(erts_proc_lock_t *lock, ErtsProcLocks locks) {
     if (locks & ERTS_PROC_LOCK_MSGQ) {
         erts_lcnt_unlock(&(lock->lcnt_msgq));
     }
+    if (locks & ERTS_PROC_LOCK_BTM) {
+        erts_lcnt_unlock(&(lock->lcnt_btm));
+    }
     if (locks & ERTS_PROC_LOCK_LINK) {
 	erts_lcnt_unlock(&(lock->lcnt_link));
     }
@@ -1178,6 +1201,9 @@ void erts_lcnt_proc_trylock(erts_proc_lock_t *lock, ErtsProcLocks locks, int res
     if (locks & ERTS_PROC_LOCK_MSGQ) {
         erts_lcnt_trylock(&(lock->lcnt_msgq), res);
     }
+    if (locks & ERTS_PROC_LOCK_BTM) {
+        erts_lcnt_trylock(&(lock->lcnt_btm), res);
+    }
     if (locks & ERTS_PROC_LOCK_LINK) {
 	erts_lcnt_trylock(&(lock->lcnt_link), res);
     }
@@ -1235,6 +1261,10 @@ erts_proc_lc_lock(Process *p, ErtsProcLocks locks, char *file, unsigned int line
 	lck.id = lc_id.proc_lock_msgq;
 	erts_lc_lock_x(&lck,file,line);
     }
+    if (locks & ERTS_PROC_LOCK_BTM) {
+	lck.id = lc_id.proc_lock_btm;
+	erts_lc_lock_x(&lck,file,line);
+    }
     if (locks & ERTS_PROC_LOCK_STATUS) {
 	lck.id = lc_id.proc_lock_status;
 	erts_lc_lock_x(&lck,file,line);
@@ -1260,6 +1290,10 @@ erts_proc_lc_trylock(Process *p, ErtsProcLocks locks, int locked,
 	lck.id = lc_id.proc_lock_msgq;
 	erts_lc_trylock_x(locked, &lck, file, line);
     }
+    if (locks & ERTS_PROC_LOCK_BTM) {
+	lck.id = lc_id.proc_lock_btm;
+	erts_lc_trylock_x(locked, &lck, file, line);
+    }
     if (locks & ERTS_PROC_LOCK_STATUS) {
 	lck.id = lc_id.proc_lock_status;
 	erts_lc_trylock_x(locked, &lck, file, line);
@@ -1276,6 +1310,10 @@ erts_proc_lc_unlock(Process *p, ErtsProcLocks locks)
 	lck.id = lc_id.proc_lock_status;
 	erts_lc_unlock(&lck);
     }
+    if (locks & ERTS_PROC_LOCK_BTM) {
+	lck.id = lc_id.proc_lock_btm;
+	erts_lc_unlock(&lck);
+    }
     if (locks & ERTS_PROC_LOCK_MSGQ) {
 	lck.id = lc_id.proc_lock_msgq;
 	erts_lc_unlock(&lck);
@@ -1303,6 +1341,10 @@ erts_proc_lc_might_unlock(Process *p, ErtsProcLocks locks)
 	lck.id = lc_id.proc_lock_status;
 	erts_lc_might_unlock(&lck);
     }
+    if (locks & ERTS_PROC_LOCK_BTM) {
+	lck.id = lc_id.proc_lock_btm;
+	erts_lc_might_unlock(&lck);
+    }
     if (locks & ERTS_PROC_LOCK_MSGQ) {
 	lck.id = lc_id.proc_lock_msgq;
 	erts_lc_might_unlock(&lck);
@@ -1322,6 +1364,8 @@ erts_proc_lc_might_unlock(Process *p, ErtsProcLocks locks)
 	erts_lc_might_unlock(&p->lock.link.lc);
     if (locks & ERTS_PROC_LOCK_MSGQ)
 	erts_lc_might_unlock(&p->lock.msgq.lc);
+    if (locks & ERTS_PROC_LOCK_BTM)
+	erts_lc_might_unlock(&p->lock.btm.lc);
     if (locks & ERTS_PROC_LOCK_STATUS)
 	erts_lc_might_unlock(&p->lock.status.lc);
 #endif
@@ -1347,6 +1391,10 @@ erts_proc_lc_require_lock(Process *p, ErtsProcLocks locks, char *file,
 	lck.id = lc_id.proc_lock_msgq;
 	erts_lc_require_lock(&lck, file, line);
     }
+    if (locks & ERTS_PROC_LOCK_BTM) {
+	lck.id = lc_id.proc_lock_btm;
+	erts_lc_require_lock(&lck, file, line);
+    }
     if (locks & ERTS_PROC_LOCK_STATUS) {
 	lck.id = lc_id.proc_lock_status;
 	erts_lc_require_lock(&lck, file, line);
@@ -1358,6 +1406,8 @@ erts_proc_lc_require_lock(Process *p, ErtsProcLocks locks, char *file,
 	erts_lc_require_lock(&p->lock.link.lc, file, line);
     if (locks & ERTS_PROC_LOCK_MSGQ)
 	erts_lc_require_lock(&p->lock.msgq.lc, file, line);
+    if (locks & ERTS_PROC_LOCK_BTM)
+	erts_lc_require_lock(&p->lock.btm.lc, file, line);
     if (locks & ERTS_PROC_LOCK_STATUS)
 	erts_lc_require_lock(&p->lock.status.lc, file, line);
 #endif
@@ -1374,6 +1424,10 @@ erts_proc_lc_unrequire_lock(Process *p, ErtsProcLocks locks)
 	lck.id = lc_id.proc_lock_status;
 	erts_lc_unrequire_lock(&lck);
     }
+    if (locks & ERTS_PROC_LOCK_BTM) {
+	lck.id = lc_id.proc_lock_btm;
+	erts_lc_unrequire_lock(&lck);
+    }
     if (locks & ERTS_PROC_LOCK_MSGQ) {
 	lck.id = lc_id.proc_lock_msgq;
 	erts_lc_unrequire_lock(&lck);
@@ -1393,6 +1447,8 @@ erts_proc_lc_unrequire_lock(Process *p, ErtsProcLocks locks)
 	erts_lc_unrequire_lock(&p->lock.link.lc);
     if (locks & ERTS_PROC_LOCK_MSGQ)
 	erts_lc_unrequire_lock(&p->lock.msgq.lc);
+    if (locks & ERTS_PROC_LOCK_BTM)
+	erts_lc_unrequire_lock(&p->lock.btm.lc);
     if (locks & ERTS_PROC_LOCK_STATUS)
 	erts_lc_unrequire_lock(&p->lock.status.lc);
 #endif
@@ -1414,6 +1470,8 @@ erts_proc_lc_trylock_force_busy(Process *p, ErtsProcLocks locks)
 	    lck.id = lc_id.proc_lock_link;
 	else if (locks & ERTS_PROC_LOCK_MSGQ)
 	    lck.id = lc_id.proc_lock_msgq;
+	else if (locks & ERTS_PROC_LOCK_BTM)
+	    lck.id = lc_id.proc_lock_btm;
 	else if (locks & ERTS_PROC_LOCK_STATUS)
 	    lck.id = lc_id.proc_lock_status;
 	else
@@ -1448,7 +1506,8 @@ erts_proc_lc_chk_have_proc_locks(Process *p, ErtsProcLocks locks)
 {
     int have_locks_len = 0;
 #if ERTS_PROC_LOCK_OWN_IMPL
-    erts_lc_lock_t have_locks[4] = {ERTS_PROC_LC_EMPTY_LOCK_INIT,
+    erts_lc_lock_t have_locks[5] = {ERTS_PROC_LC_EMPTY_LOCK_INIT,
+				    ERTS_PROC_LC_EMPTY_LOCK_INIT,
 				    ERTS_PROC_LC_EMPTY_LOCK_INIT,
 				    ERTS_PROC_LC_EMPTY_LOCK_INIT,
 				    ERTS_PROC_LC_EMPTY_LOCK_INIT};
@@ -1464,18 +1523,24 @@ erts_proc_lc_chk_have_proc_locks(Process *p, ErtsProcLocks locks)
 	have_locks[have_locks_len].id = lc_id.proc_lock_msgq;
 	have_locks[have_locks_len++].extra = p->common.id;
     }
+    if (locks & ERTS_PROC_LOCK_BTM) {
+	have_locks[have_locks_len].id = lc_id.proc_lock_btm;
+	have_locks[have_locks_len++].extra = p->common.id;
+    }
     if (locks & ERTS_PROC_LOCK_STATUS) {
 	have_locks[have_locks_len].id = lc_id.proc_lock_status;
 	have_locks[have_locks_len++].extra = p->common.id;
     }
 #elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
-    erts_lc_lock_t have_locks[4];
+    erts_lc_lock_t have_locks[5];
     if (locks & ERTS_PROC_LOCK_MAIN)
 	have_locks[have_locks_len++] = p->lock.main.lc;
     if (locks & ERTS_PROC_LOCK_LINK)
 	have_locks[have_locks_len++] = p->lock.link.lc;
     if (locks & ERTS_PROC_LOCK_MSGQ)
 	have_locks[have_locks_len++] = p->lock.msgq.lc;
+    if (locks & ERTS_PROC_LOCK_BTM)
+	have_locks[have_locks_len++] = p->lock.btm.lc;
     if (locks & ERTS_PROC_LOCK_STATUS)
 	have_locks[have_locks_len++] = p->lock.status.lc;
 #endif
@@ -1488,11 +1553,11 @@ erts_proc_lc_chk_proc_locks(Process *p, ErtsProcLocks locks)
     int have_locks_len = 0;
     int have_not_locks_len = 0;
 #if ERTS_PROC_LOCK_OWN_IMPL
-    erts_lc_lock_t have_locks[4] = {ERTS_PROC_LC_EMPTY_LOCK_INIT,
+    erts_lc_lock_t have_locks[5] = {ERTS_PROC_LC_EMPTY_LOCK_INIT,
 				    ERTS_PROC_LC_EMPTY_LOCK_INIT,
 				    ERTS_PROC_LC_EMPTY_LOCK_INIT,
 				    ERTS_PROC_LC_EMPTY_LOCK_INIT};
-    erts_lc_lock_t have_not_locks[4] = {ERTS_PROC_LC_EMPTY_LOCK_INIT,
+    erts_lc_lock_t have_not_locks[5] = {ERTS_PROC_LC_EMPTY_LOCK_INIT,
 					ERTS_PROC_LC_EMPTY_LOCK_INIT,
 					ERTS_PROC_LC_EMPTY_LOCK_INIT,
 					ERTS_PROC_LC_EMPTY_LOCK_INIT};
@@ -1521,6 +1586,14 @@ erts_proc_lc_chk_proc_locks(Process *p, ErtsProcLocks locks)
 	have_not_locks[have_not_locks_len].id = lc_id.proc_lock_msgq;
 	have_not_locks[have_not_locks_len++].extra = p->common.id;
     }
+    if (locks & ERTS_PROC_LOCK_BTM) {
+	have_locks[have_locks_len].id = lc_id.proc_lock_btm;
+	have_locks[have_locks_len++].extra = p->common.id;
+    }
+    else {
+	have_not_locks[have_not_locks_len].id = lc_id.proc_lock_btm;
+	have_not_locks[have_not_locks_len++].extra = p->common.id;
+    }
     if (locks & ERTS_PROC_LOCK_STATUS) {
 	have_locks[have_locks_len].id = lc_id.proc_lock_status;
 	have_locks[have_locks_len++].extra = p->common.id;
@@ -1530,8 +1603,8 @@ erts_proc_lc_chk_proc_locks(Process *p, ErtsProcLocks locks)
 	have_not_locks[have_not_locks_len++].extra = p->common.id;
     }
 #elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
-    erts_lc_lock_t have_locks[4];
-    erts_lc_lock_t have_not_locks[4];
+    erts_lc_lock_t have_locks[5];
+    erts_lc_lock_t have_not_locks[5];
 
     if (locks & ERTS_PROC_LOCK_MAIN)
 	have_locks[have_locks_len++] = p->lock.main.lc;
@@ -1545,6 +1618,10 @@ erts_proc_lc_chk_proc_locks(Process *p, ErtsProcLocks locks)
 	have_locks[have_locks_len++] = p->lock.msgq.lc;
     else
 	have_not_locks[have_not_locks_len++] = p->lock.msgq.lc;
+    if (locks & ERTS_PROC_LOCK_BTM)
+	have_locks[have_locks_len++] = p->lock.btm.lc;
+    else
+	have_not_locks[have_not_locks_len++] = p->lock.btm.lc;
     if (locks & ERTS_PROC_LOCK_STATUS)
 	have_locks[have_locks_len++] = p->lock.status.lc;
     else
@@ -1558,10 +1635,10 @@ erts_proc_lc_chk_proc_locks(Process *p, ErtsProcLocks locks)
 ErtsProcLocks
 erts_proc_lc_my_proc_locks(Process *p)
 {
-    int resv[4];
+    int resv[5];
     ErtsProcLocks res = 0;
 #if ERTS_PROC_LOCK_OWN_IMPL
-    erts_lc_lock_t locks[4] = {ERTS_LC_LOCK_INIT(lc_id.proc_lock_main,
+    erts_lc_lock_t locks[5] = {ERTS_LC_LOCK_INIT(lc_id.proc_lock_main,
 						 p->common.id,
 						 ERTS_LC_FLG_LT_PROCLOCK),
 			       ERTS_LC_LOCK_INIT(lc_id.proc_lock_link,
@@ -1570,17 +1647,21 @@ erts_proc_lc_my_proc_locks(Process *p)
 			       ERTS_LC_LOCK_INIT(lc_id.proc_lock_msgq,
 						 p->common.id,
 						 ERTS_LC_FLG_LT_PROCLOCK),
+			       ERTS_LC_LOCK_INIT(lc_id.proc_lock_btm,
+						 p->common.id,
+						 ERTS_LC_FLG_LT_PROCLOCK),
 			       ERTS_LC_LOCK_INIT(lc_id.proc_lock_status,
 						 p->common.id,
 						 ERTS_LC_FLG_LT_PROCLOCK)};
 #elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
-    erts_lc_lock_t locks[4] = {p->lock.main.lc,
+    erts_lc_lock_t locks[5] = {p->lock.main.lc,
 			       p->lock.link.lc,
 			       p->lock.msgq.lc,
+			       p->lock.btm.lc,
 			       p->lock.status.lc};
 #endif
 
-    erts_lc_have_locks(resv, locks, 4);
+    erts_lc_have_locks(resv, locks, 5);
     if (resv[0])
 	res |= ERTS_PROC_LOCK_MAIN;
     if (resv[1])
@@ -1588,6 +1669,8 @@ erts_proc_lc_my_proc_locks(Process *p)
     if (resv[2])
 	res |= ERTS_PROC_LOCK_MSGQ;
     if (resv[3])
+	res |= ERTS_PROC_LOCK_BTM;
+    if (resv[4])
 	res |= ERTS_PROC_LOCK_STATUS;
 
     return res;
@@ -1596,13 +1679,14 @@ erts_proc_lc_my_proc_locks(Process *p)
 void
 erts_proc_lc_chk_no_proc_locks(char *file, int line)
 {
-    int resv[4];
-    int ids[4] = {lc_id.proc_lock_main,
+    int resv[5];
+    int ids[5] = {lc_id.proc_lock_main,
 		  lc_id.proc_lock_link,
 		  lc_id.proc_lock_msgq,
+		  lc_id.proc_lock_btm,
 		  lc_id.proc_lock_status};
-    erts_lc_have_lock_ids(resv, ids, 4);
-    if (!ERTS_IS_CRASH_DUMPING && (resv[0] || resv[1] || resv[2] || resv[3])) {
+    erts_lc_have_lock_ids(resv, ids, 5);
+    if (!ERTS_IS_CRASH_DUMPING && (resv[0] || resv[1] || resv[2] || resv[3] || resv[4])) {
 	erts_lc_fail("%s:%d: Thread has process locks locked when expected "
 		     "not to have any process locks locked",
 		     file, line);
diff --git a/erts/emulator/beam/erl_process_lock.h b/erts/emulator/beam/erl_process_lock.h
index 052d992d3f..8957e7773b 100644
--- a/erts/emulator/beam/erl_process_lock.h
+++ b/erts/emulator/beam/erl_process_lock.h
@@ -65,7 +65,7 @@
 
 #endif
 
-#define ERTS_PROC_LOCK_MAX_BIT 3
+#define ERTS_PROC_LOCK_MAX_BIT 4
 
 typedef erts_aint32_t ErtsProcLocks;
 
@@ -81,17 +81,18 @@ typedef struct erts_proc_lock_t_ {
     erts_lcnt_lock_t lcnt_main;
     erts_lcnt_lock_t lcnt_link;
     erts_lcnt_lock_t lcnt_msgq;
+    erts_lcnt_lock_t lcnt_btm;
     erts_lcnt_lock_t lcnt_status;
 #endif
 #elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
     erts_mtx_t main;
     erts_mtx_t link;
     erts_mtx_t msgq;
+    erts_mtx_t btm;
     erts_mtx_t status;
 #else
 #  error "no implementation"
 #endif
-    erts_atomic32_t refc;
 #ifdef ERTS_PROC_LOCK_DEBUG
     erts_smp_atomic32_t locked[ERTS_PROC_LOCK_MAX_BIT+1];
 #endif
@@ -120,11 +121,17 @@ typedef struct erts_proc_lock_t_ {
  * Message queue lock:
  *   Protects the following fields in the process structure:
  *   * msg_inq
- *   * bif_timers
  */
 #define ERTS_PROC_LOCK_MSGQ		(((ErtsProcLocks) 1) << 2)
 
 /*
+ * Bif timer lock:
+ *   Protects the following fields in the process structure:
+ *   * bif_timers
+ */
+#define ERTS_PROC_LOCK_BTM		(((ErtsProcLocks) 1) << 3)
+
+/*
  * Status lock:
  *   Protects the following fields in the process structure:
  *   * pending_suspenders
@@ -463,6 +470,9 @@ erts_smp_proc_raw_trylock__(Process *p, ErtsProcLocks locks)
     if (locks & ERTS_PROC_LOCK_MSGQ)
 	if (erts_mtx_trylock(&p->lock.msgq) == EBUSY)
 	    goto busy_msgq;
+    if (locks & ERTS_PROC_LOCK_BTM)
+	if (erts_mtx_trylock(&p->lock.btm) == EBUSY)
+	    goto busy_btm;
     if (locks & ERTS_PROC_LOCK_STATUS)
 	if (erts_mtx_trylock(&p->lock.status) == EBUSY)
 	    goto busy_status;
@@ -470,6 +480,9 @@ erts_smp_proc_raw_trylock__(Process *p, ErtsProcLocks locks)
     return 0;
 
 busy_status:
+    if (locks & ERTS_PROC_LOCK_BTM)
+	erts_mtx_unlock(&p->lock.btm);
+busy_btm:
     if (locks & ERTS_PROC_LOCK_MSGQ)
 	erts_mtx_unlock(&p->lock.msgq);
 busy_msgq:
@@ -549,6 +562,8 @@ erts_smp_proc_lock__(Process *p,
 	erts_mtx_lock(&p->lock.link);
     if (locks & ERTS_PROC_LOCK_MSGQ)
 	erts_mtx_lock(&p->lock.msgq);
+    if (locks & ERTS_PROC_LOCK_BTM)
+	erts_mtx_lock(&p->lock.btm);
     if (locks & ERTS_PROC_LOCK_STATUS)
 	erts_mtx_lock(&p->lock.status);
 
@@ -638,6 +653,8 @@ erts_smp_proc_unlock__(Process *p,
 
     if (locks & ERTS_PROC_LOCK_STATUS)
 	erts_mtx_unlock(&p->lock.status);
+    if (locks & ERTS_PROC_LOCK_BTM)
+	erts_mtx_unlock(&p->lock.btm);
     if (locks & ERTS_PROC_LOCK_MSGQ)
 	erts_mtx_unlock(&p->lock.msgq);
     if (locks & ERTS_PROC_LOCK_LINK)
@@ -752,9 +769,10 @@ ERTS_GLB_INLINE void erts_smp_proc_lock(Process *, ErtsProcLocks);
 ERTS_GLB_INLINE void erts_smp_proc_unlock(Process *, ErtsProcLocks);
 ERTS_GLB_INLINE int erts_smp_proc_trylock(Process *, ErtsProcLocks);
 
-ERTS_GLB_INLINE void erts_smp_proc_inc_refc(Process *);
-ERTS_GLB_INLINE void erts_smp_proc_dec_refc(Process *);
-ERTS_GLB_INLINE void erts_smp_proc_add_refc(Process *, Sint32);
+ERTS_GLB_INLINE void erts_proc_inc_refc(Process *);
+ERTS_GLB_INLINE void erts_proc_dec_refc(Process *);
+ERTS_GLB_INLINE void erts_proc_add_refc(Process *, Sint);
+ERTS_GLB_INLINE Sint erts_proc_read_refc(Process *);
 
 #if ERTS_GLB_INLINE_INCL_FUNC_DEF
 
@@ -814,28 +832,59 @@ erts_smp_proc_trylock(Process *p, ErtsProcLocks locks)
 #endif
 }
 
-ERTS_GLB_INLINE void erts_smp_proc_inc_refc(Process *p)
+ERTS_GLB_INLINE void erts_proc_inc_refc(Process *p)
 {
+    ASSERT(!(erts_smp_atomic32_read_nob(&p->state) & ERTS_PSFLG_PROXY));
 #ifdef ERTS_SMP
+    erts_ptab_atmc_inc_refc(&p->common);
+#else
     erts_ptab_inc_refc(&p->common);
 #endif
 }
 
-ERTS_GLB_INLINE void erts_smp_proc_dec_refc(Process *p)
+ERTS_GLB_INLINE void erts_proc_dec_refc(Process *p)
 {
+    Sint referred;
+    ASSERT(!(erts_smp_atomic32_read_nob(&p->state) & ERTS_PSFLG_PROXY));
 #ifdef ERTS_SMP
-    int referred = erts_ptab_dec_test_refc(&p->common);
-    if (!referred)
-	erts_free_proc(p);
+    referred = erts_ptab_atmc_dec_test_refc(&p->common);
+#else
+    referred = erts_ptab_dec_test_refc(&p->common);
 #endif
+    if (!referred) {
+	ASSERT(ERTS_PROC_IS_EXITING(p));
+	ASSERT(ERTS_AINT_NULL
+	       == erts_ptab_pix2intptr_ddrb(&erts_proc,
+					    internal_pid_index(p->common.id)));
+	erts_free_proc(p);
+    }
 }
 
-ERTS_GLB_INLINE void erts_smp_proc_add_refc(Process *p, Sint32 add_refc)
+ERTS_GLB_INLINE void erts_proc_add_refc(Process *p, Sint add_refc)
 {
+    Sint referred;
+    ASSERT(!(erts_smp_atomic32_read_nob(&p->state) & ERTS_PSFLG_PROXY));
 #ifdef ERTS_SMP
-    int referred = erts_ptab_add_test_refc(&p->common, add_refc);
-    if (!referred)
+    referred = erts_ptab_atmc_add_test_refc(&p->common, add_refc);
+#else
+    referred = erts_ptab_add_test_refc(&p->common, add_refc);
+#endif
+    if (!referred) {
+	ASSERT(ERTS_PROC_IS_EXITING(p));
+	ASSERT(ERTS_AINT_NULL
+	       == erts_ptab_pix2intptr_ddrb(&erts_proc,
+					    internal_pid_index(p->common.id)));
 	erts_free_proc(p);
+    }
+}
+
+ERTS_GLB_INLINE Sint erts_proc_read_refc(Process *p)
+{
+    ASSERT(!(erts_smp_atomic32_read_nob(&p->state) & ERTS_PSFLG_PROXY));
+#ifdef ERTS_SMP
+    return erts_ptab_atmc_read_refc(&p->common);
+#else
+    return erts_ptab_read_refc(&p->common);
 #endif
 }
 
@@ -868,7 +917,7 @@ void erts_proc_safelock(Process *a_proc,
 
 #define ERTS_P2P_FLG_ALLOW_OTHER_X	(1 <<  0)
 #define ERTS_P2P_FLG_TRY_LOCK		(1 <<  1)
-#define ERTS_P2P_FLG_SMP_INC_REFC	(1 <<  2)
+#define ERTS_P2P_FLG_INC_REFC		(1 <<  2)
 
 #define ERTS_PROC_LOCK_BUSY ((Process *) &erts_invalid_process)
 
@@ -928,11 +977,14 @@ erts_pid2proc_opt(Process *c_p_unused,
 		  int flags)
 {
     Process *proc = erts_proc_lookup_raw(pid);
-    return ((!(flags & ERTS_P2P_FLG_ALLOW_OTHER_X)
-	     && proc
-	     && ERTS_PROC_IS_EXITING(proc))
-	    ? NULL
-	    : proc);
+    if (!proc)
+	return NULL;
+    if (!(flags & ERTS_P2P_FLG_ALLOW_OTHER_X)
+	&& ERTS_PROC_IS_EXITING(proc))
+	return NULL;
+    if (flags & ERTS_P2P_FLG_INC_REFC)
+	erts_proc_inc_refc(proc);
+    return proc;
 }
 #endif /* !ERTS_SMP */
 
diff --git a/erts/emulator/beam/erl_ptab.c b/erts/emulator/beam/erl_ptab.c
index 02943ee683..c688db98d8 100644
--- a/erts/emulator/beam/erl_ptab.c
+++ b/erts/emulator/beam/erl_ptab.c
@@ -360,7 +360,8 @@ erts_ptab_init_table(ErtsPTab *ptab,
 		     int size,
 		     UWord element_size,
 		     char *name,
-		     int legacy)
+		     int legacy,
+		     int atomic_refc)
 {
     size_t tab_sz, alloc_sz;
     Uint32 bits, cl, cli, ix, ix_per_cache_line, tab_cache_lines; 
@@ -415,6 +416,8 @@ erts_ptab_init_table(ErtsPTab *ptab,
     ptab->r.o.invalid_data = erts_ptab_id2data(ptab, invalid_element->id);
     ptab->r.o.release_element = release_element;
 
+    ptab->r.o.atomic_refc = atomic_refc;
+
     if (legacy) {
 	ptab->r.o.free_id_data = NULL;
 	ptab->r.o.dix_cl_mask = 0;
@@ -533,9 +536,10 @@ erts_ptab_new_element(ErtsPTab *ptab,
 
 	init_ptab_el(init_arg, (Eterm) data);
 
-#ifdef ERTS_SMP
-	erts_smp_atomic32_init_nob(&ptab_el->refc, 1);
-#endif
+	if (ptab->r.o.atomic_refc)
+	    erts_atomic_init_nob(&ptab_el->refc.atmc, 1);
+	else
+	    ptab_el->refc.sint = 1;
 
 	pix = erts_ptab_data2pix(ptab, (Eterm) data);
 
@@ -608,9 +612,10 @@ erts_ptab_new_element(ErtsPTab *ptab,
 
 	init_ptab_el(init_arg, data);
 
-#ifdef ERTS_SMP
-	erts_smp_atomic32_init_nob(&ptab_el->refc, 1);
-#endif
+	if (ptab->r.o.atomic_refc)
+	    erts_atomic_init_nob(&ptab_el->refc.atmc, 1);
+	else
+	    ptab_el->refc.sint = 1;
 
 	/* Move into slot reserved */
 #ifdef DEBUG
diff --git a/erts/emulator/beam/erl_ptab.h b/erts/emulator/beam/erl_ptab.h
index 876241159b..102d41e07f 100644
--- a/erts/emulator/beam/erl_ptab.h
+++ b/erts/emulator/beam/erl_ptab.h
@@ -51,11 +51,13 @@
 
 typedef struct {
     Eterm id;
-#ifdef ERTS_SMP
-    erts_atomic32_t refc;
-#endif
+    union {
+	erts_atomic_t atmc;
+	Sint sint;
+    } refc;
     Eterm tracer_proc;
     Uint trace_flags;
+    erts_smp_atomic_t timer;
     union {
 	/* --- While being alive --- */
 	struct {
@@ -63,11 +65,6 @@ typedef struct {
 	    struct reg_proc *reg;
 	    ErtsLink *links;
 	    ErtsMonitor *monitors;
-#ifdef ERTS_SMP
-	    ErtsSmpPTimer *ptimer;
-#else
-	    ErlTimer tm;
-#endif
 	} alive;
 
 	/* --- While being released --- */
@@ -111,6 +108,7 @@ typedef struct {
     Eterm invalid_data;
     void (*release_element)(void *);
     UWord element_size;
+    int atomic_refc;
 } ErtsPTabReadOnlyData;
 
 typedef struct {
@@ -181,7 +179,8 @@ void erts_ptab_init_table(ErtsPTab *ptab,
 			  int size,
 			  UWord element_size,
 			  char *name,
-			  int legacy);
+			  int legacy,
+			  int atomic_refc);
 int erts_ptab_new_element(ErtsPTab *ptab,
 			  ErtsPTabElementCommon *ptab_el,
 			  void *init_arg,
@@ -206,9 +205,15 @@ ERTS_GLB_INLINE erts_aint_t erts_ptab_pix2intptr_ddrb(ErtsPTab *ptab, int ix);
 ERTS_GLB_INLINE erts_aint_t erts_ptab_pix2intptr_rb(ErtsPTab *ptab, int ix);
 ERTS_GLB_INLINE erts_aint_t erts_ptab_pix2intptr_acqb(ErtsPTab *ptab, int ix);
 ERTS_GLB_INLINE void erts_ptab_inc_refc(ErtsPTabElementCommon *ptab_el);
-ERTS_GLB_INLINE int erts_ptab_dec_test_refc(ErtsPTabElementCommon *ptab_el);
-ERTS_GLB_INLINE int erts_ptab_add_test_refc(ErtsPTabElementCommon *ptab_el,
-					    Sint32 add_refc);
+ERTS_GLB_INLINE Sint erts_ptab_dec_test_refc(ErtsPTabElementCommon *ptab_el);
+ERTS_GLB_INLINE Sint erts_ptab_add_test_refc(ErtsPTabElementCommon *ptab_el,
+					     Sint add_refc);
+ERTS_GLB_INLINE Sint erts_ptab_read_refc(ErtsPTabElementCommon *ptab_el);
+ERTS_GLB_INLINE void erts_ptab_atmc_inc_refc(ErtsPTabElementCommon *ptab_el);
+ERTS_GLB_INLINE Sint erts_ptab_atmc_dec_test_refc(ErtsPTabElementCommon *ptab_el);
+ERTS_GLB_INLINE Sint erts_ptab_atmc_add_test_refc(ErtsPTabElementCommon *ptab_el,
+						  Sint add_refc);
+ERTS_GLB_INLINE Sint erts_ptab_atmc_read_refc(ErtsPTabElementCommon *ptab_el);
 ERTS_GLB_INLINE void erts_ptab_rlock(ErtsPTab *ptab);
 ERTS_GLB_INLINE int erts_ptab_tryrlock(ErtsPTab *ptab);
 ERTS_GLB_INLINE void erts_ptab_runlock(ErtsPTab *ptab);
@@ -365,50 +370,65 @@ ERTS_GLB_INLINE erts_aint_t erts_ptab_pix2intptr_acqb(ErtsPTab *ptab, int ix)
     return erts_smp_atomic_read_acqb(&ptab->r.o.tab[ix]);
 }
 
-ERTS_GLB_INLINE void erts_ptab_inc_refc(ErtsPTabElementCommon *ptab_el)
+ERTS_GLB_INLINE void erts_ptab_atmc_inc_refc(ErtsPTabElementCommon *ptab_el)
 {
-#ifdef ERTS_SMP
 #ifdef ERTS_ENABLE_LOCK_CHECK
-    erts_aint32_t refc = erts_atomic32_inc_read_nob(&ptab_el->refc);
-    ERTS_SMP_LC_ASSERT(refc > 1);
+    erts_aint_t refc = erts_atomic_inc_read_nob(&ptab_el->refc.atmc);
+    ERTS_LC_ASSERT(refc > 1);
 #else
-    erts_atomic32_inc_nob(&ptab_el->refc);
-#endif
+    erts_atomic_inc_nob(&ptab_el->refc.atmc);
 #endif
 }
 
-ERTS_GLB_INLINE int erts_ptab_dec_test_refc(ErtsPTabElementCommon *ptab_el)
+ERTS_GLB_INLINE Sint erts_ptab_atmc_dec_test_refc(ErtsPTabElementCommon *ptab_el)
 {
-#ifdef ERTS_SMP
-    erts_aint32_t refc = erts_atomic32_dec_read_nob(&ptab_el->refc);
+    erts_aint_t refc = erts_atomic_dec_read_relb(&ptab_el->refc.atmc);
     ERTS_SMP_LC_ASSERT(refc >= 0);
-    return (int) refc;
-#else
-    return 0;
+#ifdef ERTS_SMP
+    if (refc == 0)
+	ETHR_MEMBAR(ETHR_LoadLoad|ETHR_LoadStore);
 #endif
+    return (Sint) refc;
 }
 
-ERTS_GLB_INLINE int erts_ptab_add_test_refc(ErtsPTabElementCommon *ptab_el,
-					    Sint32 add_refc)
+ERTS_GLB_INLINE Sint erts_ptab_atmc_add_test_refc(ErtsPTabElementCommon *ptab_el,
+						  Sint add_refc)
 {
-#ifdef ERTS_SMP
-    erts_aint32_t refc;
+    erts_aint_t refc = erts_atomic_add_read_mb(&ptab_el->refc.atmc,
+					       (erts_aint_t) add_refc);
+    ERTS_SMP_LC_ASSERT(refc >= 0);
+    return (Sint) refc;
+}
 
-#ifndef ERTS_ENABLE_LOCK_CHECK
-    if (add_refc >= 0) {
-	erts_atomic32_add_nob(&ptab_el->refc,
-			      (erts_aint32_t) add_refc);
-	return 1;
-    }
-#endif
+ERTS_GLB_INLINE Sint erts_ptab_atmc_read_refc(ErtsPTabElementCommon *ptab_el)
+{
+    return (Sint) erts_atomic_read_nob(&ptab_el->refc.atmc);
+}
+
+ERTS_GLB_INLINE void erts_ptab_inc_refc(ErtsPTabElementCommon *ptab_el)
+{
+    ptab_el->refc.sint++;
+    ASSERT(ptab_el->refc.sint > 1);
+}
 
-    refc = erts_atomic32_add_read_nob(&ptab_el->refc,
-				      (erts_aint32_t) add_refc);
+ERTS_GLB_INLINE Sint erts_ptab_dec_test_refc(ErtsPTabElementCommon *ptab_el)
+{
+    Sint refc = --ptab_el->refc.sint;
     ERTS_SMP_LC_ASSERT(refc >= 0);
-    return (int) refc;
-#else
-    return 0;
-#endif
+    return refc;
+}
+
+ERTS_GLB_INLINE Sint erts_ptab_add_test_refc(ErtsPTabElementCommon *ptab_el,
+					     Sint add_refc)
+{
+    ptab_el->refc.sint += add_refc;
+    ERTS_SMP_LC_ASSERT(ptab_el->refc.sint >= 0);
+    return (Sint) ptab_el->refc.sint;
+}
+
+ERTS_GLB_INLINE Sint erts_ptab_read_refc(ErtsPTabElementCommon *ptab_el)
+{
+    return ptab_el->refc.sint;
 }
 
 ERTS_GLB_INLINE void erts_ptab_rlock(ErtsPTab *ptab)
diff --git a/erts/emulator/beam/erl_rbtree.h b/erts/emulator/beam/erl_rbtree.h
new file mode 100644
index 0000000000..ea0a8976bb
--- /dev/null
+++ b/erts/emulator/beam/erl_rbtree.h
@@ -0,0 +1,1740 @@
+/*
+ * %CopyrightBegin%
+ * 
+ * Copyright Ericsson AB 2015. All Rights Reserved.
+ * 
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ * 
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * %CopyrightEnd%
+ */
+
+/*
+ * Description:	A Red-Black (binary search) Tree implementation. The search,
+ *              insert, and delete operations are all O(log n) operations
+ *              on a Red-Black Tree. Red-Black Trees are described in
+ *              "Introduction to Algorithms", by Thomas H. Cormen, Charles
+ *              E. Leiserson, and Ronald L. Riverest.
+ *
+ *              Use by defining mandatory defines as well as defines for
+ *              API functions wanted, and include this header.
+ *
+ * Author: 	Rickard Green
+ *
+ *
+ * Mandatory defines:
+ * - ERTS_RBT_PREFIX - Prefix to use on functions.
+ * - ERTS_RBT_T - Type of a tree node.
+ * - ERTS_RBT_KEY_T - Type of key for a tree node.
+ * - ERTS_RBT_FLAGS_T - Type of flags for a tree node.
+ * - ERTS_RBT_INIT_EMPTY_TNODE(T) -Initialize an empty tree node.
+ * - ERTS_RBT_IS_RED(T) - Is tree node red?
+ * - ERTS_RBT_SET_RED(T) - Set tree node red.
+ * - ERTS_RBT_IS_BLACK(T) - Is tree node back?
+ * - ERTS_RBT_SET_BLACK(T) - Set tree node black.
+ * - ERTS_RBT_GET_FLAGS(T) - Get flags of tree node (incl colors).
+ * - ERTS_RBT_SET_FLAGS(T, F) - Set flags of tree note.
+ * - ERTS_RBT_GET_PARENT(T) - Get parent node.
+ * - ERTS_RBT_SET_PARENT(T, P) - Set parent node.
+ * - ERTS_RBT_GET_RIGHT(T) - Get right child node.
+ * - ERTS_RBT_SET_RIGHT(T, R) - Set right child node.
+ * - ERTS_RBT_GET_LEFT(T) - Get left child node.
+ * - ERTS_RBT_SET_LEFT(T, L) - Set left child node.
+ * - ERTS_RBT_GET_KEY(T) - Get key of node.
+ * - ERTS_RBT_IS_LT(KX, KY) - Is key KX less than key KY?
+ * - ERTS_RBT_IS_EQ(KX, KY) - Is key KX equal to key KY?
+ *
+ * Optional defines:
+ *
+ * - ERTS_RBT_UNDEF - Undefine all user defined ERTS_RBT_*
+ *     defines after use.
+ *
+ * - ERTS_RBT_NO_API_INLINE - Do not inline API functions.
+ *
+ * Attached data management:
+ * - ERTS_RBT_UPDATE_ATTACHED_DATA_ROTATE(L, OP, NP) - Called
+ *     when a rotate operation has been performed. If L (in int)
+ *     is a non zero, a left rotation was performed; otherwise,
+ *     a right rotation was performed. OR points to the old
+ *     parent node and NP points to the new parent node.
+ * - ERTS_RBT_UPDATE_ATTACHED_DATA_DMOD(F, T) - Called when
+ *     a delete operation modifies a tree node. A delete
+ *     modification is either a removal or replacement of a
+ *     node. F points to the parent of the tree node that was
+ *     modified. T points to the next ancestor that will be
+ *     modified. If T is NULL, no more removal and/or
+ *     replacements will be made. One typically wants to update
+ *     the attached data of each node between F and T. If T is
+ *     NULL all the way up to the root.
+ * - ERTS_RBT_UPDATE_ATTACHED_DATA_CHGROOT(OR, NR) - Called
+ *     when the root node changes. OR points to the old
+ *     root node and NP points to the new root node.
+ *
+ * Request implementation of API functions:
+ * - ERTS_RBT_WANT_DELETE
+ * - ERTS_RBT_WANT_INSERT
+ * - ERTS_RBT_WANT_LOOKUP_INSERT
+ * - ERTS_RBT_WANT_REPLACE
+ * - ERTS_RBT_WANT_LOOKUP
+ * - ERTS_RBT_WANT_SMALLEST
+ * - ERTS_RBT_WANT_LARGEST
+ * - ERTS_RBT_WANT_FOREACH
+ * - ERTS_RBT_WANT_FOREACH_DESTROY
+ * - ERTS_RBT_WANT_FOREACH_YIELDING
+ * - ERTS_RBT_WANT_FOREACH_DESTROY_YIELDING
+ * - ERTS_RBT_WANT_FOREACH_SMALL
+ * - ERTS_RBT_WANT_FOREACH_LARGE
+ * - ERTS_RBT_WANT_FOREACH_SMALL_DESTROY
+ * - ERTS_RBT_WANT_FOREACH_LARGE_DESTROY
+ * - ERTS_RBT_WANT_FOREACH_SMALL_YIELDING
+ * - ERTS_RBT_WANT_FOREACH_LARGE_YIELDING
+ * - ERTS_RBT_WANT_FOREACH_SMALL_DESTROY_YIELDING
+ * - ERTS_RBT_WANT_FOREACH_LARGE_DESTROY_YIELDING
+ * - ERTS_RBT_WANT_DEBUG_PRINT
+ *
+ * The yield state data type will equal
+ * <ERTS_RBT_PREFIX>_rbt_yield_state_t.
+ *
+ * The yield state should be statically initialized by
+ * ERTS_RBT_YIELD_STAT_INITER.
+ *
+ *
+ * The following API functions are implemented if corresponding
+ * ERTS_RBT_WANT_<OPERATION> is defined:
+ *
+ * - void <ERTS_RBT_PREFIX>_rbt_delete(
+ *                         ERTS_RBT_T **tree,
+ *                         ERTS_RBT_T *element);
+ *         Delete element from tree.
+ *
+ * - void <ERTS_RBT_PREFIX>_rbt_insert(
+ *                         ERTS_RBT_T **tree,
+ *                         ERTS_RBT_T *element);
+ *         Insert element into tree.
+ *
+ * - ERTS_RBT_T * <ERTS_RBT_PREFIX>_rbt_lookup_insert(
+ *                         ERTS_RBT_T **tree,
+ *                         ERTS_RBT_T *element);
+ *         Look up an element in the tree that compares as equal to the
+ *         element passed as argument, and return the looked up element.
+ *         If no element compared as equal, insert the element passed as
+ *         argument into the tree, and return NULL.
+ *
+ * - void <ERTS_RBT_PREFIX>_rbt_replace(
+ *                         ERTS_RBT_T **tree,
+ *                         ERTS_RBT_T *old_element,
+ *                         ERTS_RBT_T *new_element);
+ *         Replace old_element in the tree with new_element. Both elements
+ *         *should* compare as equal.
+ *
+ * - ERTS_RBT_T * <ERTS_RBT_PREFIX>_rbt_lookup(
+ *                         ERTS_RBT_T *tree,
+ *                         ERTS_RBT_KEY_T key);
+ *         Look up an element with a key that compares as equal to
+ *         the key passed as argument.
+ *
+ * - ERTS_RBT_T * <ERTS_RBT_PREFIX>_rbt_smallest(
+ *                         ERTS_RBT_T *tree);
+ *         Look up the element with the smallest key.
+ *
+ * - ERTS_RBT_T * <ERTS_RBT_PREFIX>_rbt_largest(
+ *                         ERTS_RBT_T *tree);
+ *         Look up the element with the largest key.
+ *
+ * - void <ERTS_RBT_PREFIX>_rbt_foreach(
+ *                         ERTS_RBT_T *tree,
+ *                         void (*op)(ERTS_RBT_T *, void *),
+ *                         void *arg);
+ *         Operate by calling the operator 'op' on each element.
+ *         Order is undefined.
+ *
+ *         'arg' is passed as argument to 'op'.
+ *
+ * - void <ERTS_RBT_PREFIX>_rbt_foreach_destroy(
+ *                         ERTS_RBT_T *tree,
+ *                         void (*op)(ERTS_RBT_T *, void *),
+ *                         void *arg);
+ *         Operate by calling the operator 'op' on each element.
+ *         Order is undefined. Each element should be destroyed
+ *         by 'op'.
+ *
+ *         'arg' is passed as argument to 'op'.
+ *
+ * - int <ERTS_RBT_PREFIX>_rbt_foreach_yielding(
+ *                         ERTS_RBT_T *tree,
+ *                         void (*op)(ERTS_RBT_T *, void *),
+ *                         void *arg,
+ *                         <ERTS_RBT_PREFIX>_rbt_yield_state_t *ystate,
+ *                         Sint ylimit);
+ *         Operate by calling the operator 'op' on each element.
+ *         Order is undefined.
+ *
+ *         Yield when 'ylimit' elements has been processed. Zero is
+ *         returned when yielding, and a non-zero value is returned when
+ *         the whole tree has been processed. The tree should not be
+ *         modified until all of it has been processed.
+ *
+ *         'arg' is passed as argument to 'op'.
+ *
+ * - int <ERTS_RBT_PREFIX>_rbt_foreach_destroy_yielding(
+ *                         ERTS_RBT_T *tree,
+ *                         void (*op)(ERTS_RBT_T *, void *),
+ *                         void *arg,
+ *                         <ERTS_RBT_PREFIX>_rbt_yield_state_t *ystate,
+ *                         Sint ylimit);
+ *         Operate by calling the operator 'op' on each element.
+ *         Order is undefined. Each element should be destroyed
+ *         by 'op'.
+ *
+ *         Yield when 'ylimit' elements has been processed. Zero is
+ *         returned when yielding, and a non-zero value is returned when
+ *         the whole tree has been processed.
+ *
+ *         'arg' is passed as argument to 'op'.
+ *
+ * - void <ERTS_RBT_PREFIX>_rbt_foreach_small(
+ *                         ERTS_RBT_T *tree,
+ *                         void (*op)(ERTS_RBT_T *, void *),
+ *                         void *arg);
+ *         Operate by calling the operator 'op' on each element from
+ *         smallest towards larger elements.
+ *
+ *         'arg' is passed as argument to 'op'.
+ *
+ * - void <ERTS_RBT_PREFIX>_rbt_foreach_large(
+ *                         ERTS_RBT_T *tree,
+ *                         void (*op)(ERTS_RBT_T *, void *),
+ *                         void *arg);
+ *         Operate by calling the operator 'op' on each element from
+ *         largest towards smaller elements.
+ *
+ *         'arg' is passed as argument to 'op'.
+ *
+ * - int <ERTS_RBT_PREFIX>_rbt_foreach_small_yielding(
+ *                         ERTS_RBT_T *tree,
+ *                         void (*op)(ERTS_RBT_T *, void *),
+ *                         void *arg,
+ *                         <ERTS_RBT_PREFIX>_rbt_yield_state_t *ystate,
+ *                         Sint ylimit);
+ *         Operate by calling the operator 'op' on each element from
+ *         smallest towards larger elements.
+ *
+ *         Yield when 'ylimit' elements has been processed. Zero is
+ *         returned when yielding, and a non-zero value is returned when
+ *         the whole tree has been processed. The tree should not be
+ *         modified until all of it has been processed.
+ *
+ *         'arg' is passed as argument to 'op'.
+ *
+ * - int <ERTS_RBT_PREFIX>_rbt_foreach_large_yielding(
+ *                         ERTS_RBT_T *tree,
+ *                         void (*op)(ERTS_RBT_T *, void *),
+ *                         void *arg,
+ *                         <ERTS_RBT_PREFIX>_rbt_yield_state_t *ystate,
+ *                         Sint ylimit);
+ *         Operate by calling the operator 'op' on each element from
+ *         largest towards smaller elements.
+ *
+ *         Yield when 'ylimit' elements has been processed. Zero is
+ *         returned when yielding, and a non-zero value is returned when
+ *         the whole tree has been processed. The tree should not be
+ *         modified until all of it has been processed.
+ *
+ *         'arg' is passed as argument to 'op'.
+ *
+ * - void <ERTS_RBT_PREFIX>_rbt_foreach_small_destroy(
+ *                         ERTS_RBT_T **tree,
+ *                         void (*op)(ERTS_RBT_T *, void *),
+ *                         void (*destr)(ERTS_RBT_T *, void *),
+ *                         void *arg);
+ *         Operate by calling the operator 'op' on each element from
+ *         smallest towards larger elements.
+ *
+ *         Destroy elements by calling the destructor 'destr'. Elements
+ *         are destroyed when not needed by the tree structure anymore.
+ *         Note that elements are often *not* destroyed in another order
+ *         than the order that the elements are operated on.
+ *
+ *         'arg' is passed as argument to 'op' and 'destroy'.
+ *
+ * - void <ERTS_RBT_PREFIX>_rbt_foreach_large_destroy(
+ *                         ERTS_RBT_T **tree,
+ *                         void (*op)(ERTS_RBT_T *, void *),
+ *                         void (*destr)(ERTS_RBT_T *, void *),
+ *                         void *arg);
+ *         Operate by calling the operator 'op' on each element from
+ *         largest towards smaller elements.
+ *
+ *         Destroy elements by calling the destructor 'destr'. Elements
+ *         are destroyed when not needed by the tree structure anymore.
+ *         Note that elements are often destroyed in another order
+ *         than the order that the elements are operated on.
+ *
+ *         'arg' is passed as argument to 'op' and 'destroy'.
+ *
+ * - int <ERTS_RBT_PREFIX>_rbt_foreach_small_destroy_yielding(
+ *                        ERTS_RBT_T **tree,
+ *                        void (*op)(ERTS_RBT_T *, void *),
+ *                        void (*destr)(ERTS_RBT_T *, void *),
+ *                        void *arg,
+ *                        <ERTS_RBT_PREFIX>_rbt_yield_state_t *ystate,
+ *                        Sint ylimit);
+ *         Operate by calling the operator 'op' on each element from
+ *         smallest towards larger elements.
+ *
+ *         Destroy elements by calling the destructor 'destr'. Elements
+ *         are destroyed when not needed by the tree structure anymore.
+ *         Note that elements are often destroyed in another order
+ *         than the order that the elements are operated on.
+ *
+ *         Yield when 'ylimit' elements has been processed. Zero is
+ *         returned when yielding, and a non-zero value is returned when
+ *         the whole tree has been processed. The tree should not be
+ *         modified until all of it has been processed.
+ *
+ *         'arg' is passed as argument to 'op' and 'destroy'.
+ *
+ * - int <ERTS_RBT_PREFIX>_rbt_foreach_large_destroy_yielding(
+ *                        ERTS_RBT_T **tree,
+ *                        void (*op)(ERTS_RBT_T *, void *),
+ *                        void (*destr)(ERTS_RBT_T *, void *),
+ *                        void *arg,
+ *                        <ERTS_RBT_PREFIX>_rbt_yield_state_t *ystate,
+ *                        Sint ylimit);
+ *         Operate by calling the operator 'op' on each element from
+ *         largest towards smaller elements.
+ *
+ *         Destroy elements by calling the destructor 'destr'. Elements
+ *         are destroyed when not needed by the tree structure anymore.
+ *         Note that elements are often destroyed in another order
+ *         than the order that the elements are operated on.
+ *
+ *         Yield when 'ylimit' elements has been processed. Zero is
+ *         returned when yielding, and a non-zero value is returned when
+ *         the whole tree has been processed. The tree should not be
+ *         modified until all of it has been processed.
+ *
+ *         'arg' is passed as argument to 'op' and 'destroy'.
+ *
+ * - void <ERTS_RBT_PREFIX>_rbt_debug_print(
+ *                        FILE *filep,
+ *                        ERTS_RBT_T *x,
+ *                        int indent,
+ *                        (void)(*print_node)(ERTS_RBT_T *));
+ *         Prints the tree. Note that this function is recursive.
+ *         Should only be used for debuging.
+ */
+
+
+/*
+ * Check that we have all mandatory defines
+ */
+#ifndef ERTS_RBT_PREFIX
+#  error Missing definition of ERTS_RBT_PREFIX
+#endif
+#ifndef ERTS_RBT_T
+#  error Missing definition of ERTS_RBT_T
+#endif
+#ifndef ERTS_RBT_KEY_T
+#  error Missing definition of ERTS_RBT_KEY_T
+#endif
+#ifndef ERTS_RBT_FLAGS_T
+#  error Missing definition of ERTS_RBT_FLAGS_T
+#endif
+#ifndef ERTS_RBT_INIT_EMPTY_TNODE
+#  error Missing definition of ERTS_RBT_INIT_EMPTY_TNODE
+#endif
+#ifndef ERTS_RBT_IS_RED
+#  error Missing definition of ERTS_RBT_IS_RED
+#endif
+#ifndef ERTS_RBT_SET_RED
+#  error Missing definition of ERTS_RBT_SET_RED
+#endif
+#ifndef ERTS_RBT_IS_BLACK
+#  error Missing definition of ERTS_RBT_IS_BLACK
+#endif
+#ifndef ERTS_RBT_SET_BLACK
+#  error Missing definition of ERTS_RBT_SET_BLACK
+#endif
+#ifndef ERTS_RBT_GET_FLAGS
+#  error Missing definition of ERTS_RBT_GET_FLAGS
+#endif
+#ifndef ERTS_RBT_SET_FLAGS
+#  error Missing definition of ERTS_RBT_SET_FLAGS
+#endif
+#ifndef ERTS_RBT_GET_PARENT
+#  error Missing definition of ERTS_RBT_GET_PARENT
+#endif
+#ifndef ERTS_RBT_SET_PARENT
+#  error Missing definition of ERTS_RBT_SET_PARENT
+#endif
+#ifndef ERTS_RBT_GET_RIGHT
+#  error Missing definition of ERTS_RBT_GET_RIGHT
+#endif
+#ifndef ERTS_RBT_GET_LEFT
+#  error Missing definition of ERTS_RBT_GET_LEFT
+#endif
+#ifndef ERTS_RBT_IS_LT
+#  error Missing definition of ERTS_RBT_IS_LT
+#endif
+#ifndef ERTS_RBT_GET_KEY
+#  error Missing definition of ERTS_RBT_GET_KEY
+#endif
+#ifndef ERTS_RBT_IS_EQ
+#  error Missing definition of ERTS_RBT_IS_EQ
+#endif
+
+#if defined(ERTS_RBT_HARD_DEBUG) || defined(DEBUG)
+#  ifndef ERTS_RBT_DEBUG
+#    define ERTS_RBT_DEBUG 1
+#  endif
+#endif
+
+#if defined(ERTS_RBT_HARD_DEBUG) && defined(__GNUC__)
+#warning "* * * * * * * * * * * * * * * * * *"
+#warning "* ERTS_RBT_HARD_DEBUG IS ENABLED! *"
+#warning "* * * * * * * * * * * * * * * * * *"
+#endif
+
+#undef ERTS_RBT_ASSERT
+#if defined(ERTS_RBT_DEBUG)
+#define ERTS_RBT_ASSERT(E) ERTS_ASSERT(E)
+#else
+#define ERTS_RBT_ASSERT(E) ((void) 1)
+#endif
+
+#undef ERTS_RBT_API_INLINE__
+#if defined(ERTS_RBT_NO_API_INLINE) || defined(ERTS_RBT_DEBUG)
+#  define ERTS_RBT_API_INLINE__
+#else
+#  define ERTS_RBT_API_INLINE__ ERTS_INLINE
+#endif
+
+#ifndef ERTS_RBT_YIELD_STAT_INITER
+#  define ERTS_RBT_YIELD_STAT_INITER {NULL, 0}
+#endif
+
+#define ERTS_RBT_CONCAT_MACRO_VALUES___(X, Y) \
+    X ## Y
+#define ERTS_RBT_CONCAT_MACRO_VALUES__(X, Y) \
+    ERTS_RBT_CONCAT_MACRO_VALUES___(X, Y)
+
+#undef ERTS_RBT_YIELD_STATE_T__
+#define ERTS_RBT_YIELD_STATE_T__ \
+    ERTS_RBT_CONCAT_MACRO_VALUES__(ERTS_RBT_PREFIX, _rbt_yield_state_t)
+
+typedef struct {
+    ERTS_RBT_T *x;
+    int up;
+} ERTS_RBT_YIELD_STATE_T__;
+
+#define ERTS_RBT_FUNC__(Name) \
+    ERTS_RBT_CONCAT_MACRO_VALUES__(ERTS_RBT_PREFIX, _rbt_ ## Name)
+
+#undef ERTS_RBT_NEED_REPLACE__
+#undef ERTS_RBT_NEED_INSERT__
+#undef ERTS_RBT_NEED_ROTATE__
+#undef ERTS_RBT_NEED_FOREACH_UNORDERED__
+#undef ERTS_RBT_NEED_FOREACH_ORDERED__
+#undef ERTS_RBT_NEED_HDBG_CHECK_TREE__
+#undef ERTS_RBT_HDBG_CHECK_TREE__
+
+#if defined(ERTS_RBT_WANT_REPLACE) || defined(ERTS_RBT_WANT_DELETE)
+#  define ERTS_RBT_NEED_REPLACE__
+#endif
+#if defined(ERTS_RBT_WANT_INSERT) || defined(ERTS_RBT_WANT_LOOKUP_INSERT)
+#  define ERTS_RBT_NEED_INSERT__
+#endif
+#if defined(ERTS_RBT_WANT_DELETE) || defined(ERTS_RBT_NEED_INSERT__)
+#  define ERTS_RBT_NEED_ROTATE__
+#endif
+#if defined(ERTS_RBT_WANT_FOREACH) \
+    || defined(ERTS_RBT_WANT_FOREACH_YIELDING) \
+    || defined(ERTS_RBT_WANT_FOREACH_DESTROY) \
+    || defined(ERTS_RBT_WANT_FOREACH_DESTROY_YIELDING)
+#  define ERTS_RBT_NEED_FOREACH_UNORDERED__
+#endif
+#if defined(ERTS_RBT_WANT_FOREACH_SMALL) \
+    || defined(ERTS_RBT_WANT_FOREACH_LARGE) \
+    || defined(ERTS_RBT_WANT_FOREACH_SMALL_YIELDING) \
+    || defined(ERTS_RBT_WANT_FOREACH_LARGE_YIELDING) \
+    || defined(ERTS_RBT_WANT_FOREACH_SMALL_DESTROY) \
+    || defined(ERTS_RBT_WANT_FOREACH_LARGE_DESTROY) \
+    || defined(ERTS_RBT_WANT_FOREACH_SMALL_DESTROY_YIELDING) \
+    || defined(ERTS_RBT_WANT_FOREACH_LARGE_DESTROY_YIELDING)
+#  define ERTS_RBT_NEED_FOREACH_ORDERED__
+#endif
+#if defined(ERTS_RBT_HARD_DEBUG) \
+    && (defined(ERTS_RBT_WANT_DELETE) \
+	|| defined(ERTS_RBT_NEED_INSERT__))
+static void ERTS_RBT_FUNC__(hdbg_check_tree)(ERTS_RBT_T *root);
+#  define ERTS_RBT_NEED_HDBG_CHECK_TREE__
+#  define ERTS_RBT_HDBG_CHECK_TREE__(R) \
+    ERTS_RBT_FUNC__(hdbg_check_tree)((R))
+#else
+#  define ERTS_RBT_HDBG_CHECK_TREE__(R) ((void) 1)
+#endif
+
+#ifdef ERTS_RBT_NEED_ROTATE__
+
+static ERTS_INLINE void
+ERTS_RBT_FUNC__(left_rotate__)(ERTS_RBT_T **root, ERTS_RBT_T *x)
+{
+    ERTS_RBT_T *y, *l, *p;
+
+    y = ERTS_RBT_GET_RIGHT(x);
+    l = ERTS_RBT_GET_LEFT(y);
+    ERTS_RBT_SET_RIGHT(x, l);
+
+    if (l)
+	ERTS_RBT_SET_PARENT(l, x);
+
+    p = ERTS_RBT_GET_PARENT(x);
+    ERTS_RBT_SET_PARENT(y, p);
+
+    if (!p) {
+	ERTS_RBT_ASSERT(*root == x);
+	*root = y;
+#ifdef ERTS_RBT_UPDATE_ATTACHED_DATA_CHGROOT
+	ERTS_RBT_UPDATE_ATTACHED_DATA_CHGROOT(x, y);
+#endif
+    }
+    else if (x == ERTS_RBT_GET_LEFT(p))
+	ERTS_RBT_SET_LEFT(p, y);
+    else {
+	ERTS_RBT_ASSERT(x == ERTS_RBT_GET_RIGHT(p));
+	ERTS_RBT_SET_RIGHT(p, y);
+    }
+    ERTS_RBT_SET_LEFT(y, x);
+    ERTS_RBT_SET_PARENT(x, y);
+
+#ifdef ERTS_RBT_UPDATE_ATTACHED_DATA_ROTATE
+    ERTS_RBT_UPDATE_ATTACHED_DATA_ROTATE(!0, x, y);
+#endif
+
+}
+
+static ERTS_INLINE void
+ERTS_RBT_FUNC__(right_rotate__)(ERTS_RBT_T **root, ERTS_RBT_T *x)
+{
+    ERTS_RBT_T *y, *r, *p;
+
+    y = ERTS_RBT_GET_LEFT(x);
+    r = ERTS_RBT_GET_RIGHT(y);
+    ERTS_RBT_SET_LEFT(x, r);
+
+    if (r)
+	ERTS_RBT_SET_PARENT(r, x);
+
+    p = ERTS_RBT_GET_PARENT(x);
+    ERTS_RBT_SET_PARENT(y, p);
+
+    if (!p) {
+	ERTS_RBT_ASSERT(*root == x);
+	*root = y;
+#ifdef ERTS_RBT_UPDATE_ATTACHED_DATA_CHGROOT
+	ERTS_RBT_UPDATE_ATTACHED_DATA_CHGROOT(x, y);
+#endif
+    }
+    else if (x == ERTS_RBT_GET_RIGHT(p))
+	ERTS_RBT_SET_RIGHT(p, y);
+    else {
+	ERTS_RBT_ASSERT(x == ERTS_RBT_GET_LEFT(p));
+	ERTS_RBT_SET_LEFT(p, y);
+    }
+
+    ERTS_RBT_SET_RIGHT(y, x);
+    ERTS_RBT_SET_PARENT(x, y);
+
+#ifdef ERTS_RBT_UPDATE_ATTACHED_DATA_ROTATE
+    ERTS_RBT_UPDATE_ATTACHED_DATA_ROTATE(0, x, y);
+#endif
+
+}
+
+#endif /* ERTS_RBT_NEED_ROTATE__ */
+
+#ifdef ERTS_RBT_NEED_REPLACE__
+
+/*
+ * Replace node x with node y
+ */
+static ERTS_INLINE void
+ERTS_RBT_FUNC__(replace__)(ERTS_RBT_T **root, ERTS_RBT_T *x, ERTS_RBT_T *y)
+{
+    ERTS_RBT_T *p, *r, *l;
+    ERTS_RBT_FLAGS_T f;
+
+    p = ERTS_RBT_GET_PARENT(x);
+    if (!p) {
+	ERTS_RBT_ASSERT(*root == x);
+	*root = y;
+#ifdef ERTS_RBT_UPDATE_ATTACHED_DATA_CHGROOT
+	ERTS_RBT_UPDATE_ATTACHED_DATA_CHGROOT(x, y);
+#endif
+    }
+    else if (x == ERTS_RBT_GET_LEFT(p))
+	ERTS_RBT_SET_LEFT(p, y);
+    else {
+	ERTS_RBT_ASSERT(x == ERTS_RBT_GET_RIGHT(p));
+	ERTS_RBT_SET_RIGHT(p, y);
+    }
+    l = ERTS_RBT_GET_LEFT(x);
+    if (l) {
+	ERTS_RBT_ASSERT(ERTS_RBT_GET_PARENT(l) == x);
+	ERTS_RBT_SET_PARENT(l, y);
+    }
+    r = ERTS_RBT_GET_RIGHT(x);
+    if (r) {
+	ERTS_RBT_ASSERT(ERTS_RBT_GET_PARENT(r) == x);
+	ERTS_RBT_SET_PARENT(r, y);
+    }
+
+    f = ERTS_RBT_GET_FLAGS(x);
+    ERTS_RBT_SET_FLAGS(y, f);
+    ERTS_RBT_SET_PARENT(y, p);
+    ERTS_RBT_SET_RIGHT(y, r);
+    ERTS_RBT_SET_LEFT(y, l);
+}
+
+#endif /* ERTS_RBT_NEED_REPLACE__ */
+
+#ifdef ERTS_RBT_WANT_REPLACE
+
+static ERTS_RBT_API_INLINE__ void
+ERTS_RBT_FUNC__(replace)(ERTS_RBT_T **root, ERTS_RBT_T *x, ERTS_RBT_T *y)
+{
+    ERTS_RBT_ASSERT(ERTS_RBT_IS_EQ(ERTS_RBT_GET_KEY(x),
+				   ERTS_RBT_GET_KEY(y)));
+
+    ERTS_RBT_FUNC__(replace__)(root, x, y);
+}
+
+#endif /* ERTS_RBT_WANT_REPLACE */
+
+#ifdef ERTS_RBT_WANT_DELETE
+
+/*
+ * Delete a node.
+ */
+static ERTS_RBT_API_INLINE__ void
+ERTS_RBT_FUNC__(delete)(ERTS_RBT_T **root, ERTS_RBT_T *n)
+{
+    int spliced_is_black;
+    ERTS_RBT_T *p, *x, *y, *z = n;
+    ERTS_RBT_T null_x; /* null_x is used to get the fixup started when we
+			  splice out a node without children. */
+
+    ERTS_RBT_HDBG_CHECK_TREE__(*root);
+
+    ERTS_RBT_INIT_EMPTY_TNODE(&null_x);
+
+    /* Remove node from tree... */
+
+    /* Find node to splice out */
+    if (!ERTS_RBT_GET_LEFT(z) || !ERTS_RBT_GET_RIGHT(z))
+	y = z;
+    else {
+	/* Set y to z:s successor */
+	y = ERTS_RBT_GET_RIGHT(z);
+	while (1) {
+	    ERTS_RBT_T *t = ERTS_RBT_GET_LEFT(y);
+	    if (!t)
+		break;
+	    y = t;
+	}
+    }
+    /* splice out y */
+    x = ERTS_RBT_GET_LEFT(y);
+    if (!x)
+	x = ERTS_RBT_GET_RIGHT(y);
+    spliced_is_black = ERTS_RBT_IS_BLACK(y);
+    p = ERTS_RBT_GET_PARENT(y);
+    if (x)
+	ERTS_RBT_SET_PARENT(x, p);
+    else if (spliced_is_black) {
+	x = &null_x;
+	ERTS_RBT_SET_BLACK(x);
+	ERTS_RBT_SET_PARENT(x, p);
+	ERTS_RBT_SET_LEFT(y, x);
+    }
+
+    if (!p) {
+	ERTS_RBT_ASSERT(*root == y);
+	*root = x;
+#ifdef ERTS_RBT_UPDATE_ATTACHED_DATA_CHGROOT
+	ERTS_RBT_UPDATE_ATTACHED_DATA_CHGROOT(y, x);
+#endif
+    }
+    else {
+	if (y == ERTS_RBT_GET_LEFT(p))
+	    ERTS_RBT_SET_LEFT(p, x);
+	else {
+	    ERTS_RBT_ASSERT(y == ERTS_RBT_GET_RIGHT(p));
+	    ERTS_RBT_SET_RIGHT(p, x);
+	}
+#ifdef ERTS_RBT_UPDATE_ATTACHED_DATA_DMOD
+	if (p != z)
+	    ERTS_RBT_UPDATE_ATTACHED_DATA_DMOD(p, y == z ? NULL : z);
+#endif
+    }
+    if (y != z) {
+	/* We spliced out the successor of z; replace z by the successor */
+	ERTS_RBT_FUNC__(replace__)(root, z, y);
+#ifdef ERTS_RBT_UPDATE_ATTACHED_DATA_DMOD
+	ERTS_RBT_UPDATE_ATTACHED_DATA_DMOD(y, NULL);
+#endif
+    }
+
+    if (spliced_is_black) {
+	/* We removed a black node which makes the resulting tree
+	   violate the Red-Black Tree properties. Fixup tree... */
+
+	p = ERTS_RBT_GET_PARENT(x);
+	while (ERTS_RBT_IS_BLACK(x) && p) {
+	    ERTS_RBT_T *r, *l;
+
+	    /*
+	     * x has an "extra black" which we move up the tree
+	     * until we reach the root or until we can get rid of it.
+	     *
+	     * y is the sibbling of x, and p is their parent
+	     */
+
+	    if (x == ERTS_RBT_GET_LEFT(p)) {
+		y = ERTS_RBT_GET_RIGHT(p);
+
+		ERTS_RBT_ASSERT(y);
+
+		if (ERTS_RBT_IS_RED(y)) {
+		    ERTS_RBT_ASSERT(ERTS_RBT_GET_RIGHT(y));
+		    ERTS_RBT_ASSERT(ERTS_RBT_GET_LEFT(y));
+
+		    ERTS_RBT_SET_BLACK(y);
+
+		    ERTS_RBT_ASSERT(ERTS_RBT_IS_BLACK(p));
+
+		    ERTS_RBT_SET_RED(p);
+		    ERTS_RBT_FUNC__(left_rotate__)(root, p);
+		    p = ERTS_RBT_GET_PARENT(x);
+		    y = ERTS_RBT_GET_RIGHT(p);
+		}
+
+		ERTS_RBT_ASSERT(y);
+		ERTS_RBT_ASSERT(ERTS_RBT_IS_BLACK(y));
+
+		l = ERTS_RBT_GET_LEFT(y);
+		r = ERTS_RBT_GET_RIGHT(y);
+		if ((!l || ERTS_RBT_IS_BLACK(l))
+		    && (!r || ERTS_RBT_IS_BLACK(r))) {
+		    ERTS_RBT_SET_RED(y);
+		    x = p;
+		    p = ERTS_RBT_GET_PARENT(x);
+		}
+		else {
+		    if (!r || ERTS_RBT_IS_BLACK(r)) {
+			ERTS_RBT_SET_BLACK(l);
+			ERTS_RBT_SET_RED(y);
+			ERTS_RBT_FUNC__(right_rotate__)(root, y);
+			p = ERTS_RBT_GET_PARENT(x);
+			y = ERTS_RBT_GET_RIGHT(p);
+		    }
+
+		    ERTS_RBT_ASSERT(y);
+
+		    if (p && ERTS_RBT_IS_RED(p)) {
+
+			ERTS_RBT_SET_BLACK(p);
+			ERTS_RBT_SET_RED(y);
+		    }
+
+		    ERTS_RBT_ASSERT(ERTS_RBT_GET_RIGHT(y));
+
+		    ERTS_RBT_SET_BLACK(ERTS_RBT_GET_RIGHT(y));
+		    ERTS_RBT_FUNC__(left_rotate__)(root, p);
+		    x = *root;
+		    break;
+		}
+	    }
+	    else {
+		ERTS_RBT_ASSERT(x == ERTS_RBT_GET_RIGHT(p));
+
+		y = ERTS_RBT_GET_LEFT(p);
+
+		ERTS_RBT_ASSERT(y);
+
+		if (ERTS_RBT_IS_RED(y)) {
+		    ERTS_RBT_ASSERT(ERTS_RBT_GET_RIGHT(y));
+		    ERTS_RBT_ASSERT(ERTS_RBT_GET_LEFT(y));
+
+		    ERTS_RBT_SET_BLACK(y);
+		    ERTS_RBT_ASSERT(ERTS_RBT_IS_BLACK(p));
+		    ERTS_RBT_SET_RED(p);
+		    ERTS_RBT_FUNC__(right_rotate__)(root, p);
+
+		    p = ERTS_RBT_GET_PARENT(x);
+		    y = ERTS_RBT_GET_LEFT(p);
+		}
+
+		ERTS_RBT_ASSERT(y);
+		ERTS_RBT_ASSERT(ERTS_RBT_IS_BLACK(y));
+
+		l = ERTS_RBT_GET_LEFT(y);
+		r = ERTS_RBT_GET_RIGHT(y);
+
+		if ((!r || ERTS_RBT_IS_BLACK(r))
+		    && (!l || ERTS_RBT_IS_BLACK(l))) {
+		    ERTS_RBT_SET_RED(y);
+		    x = p;
+		    p = ERTS_RBT_GET_PARENT(x);
+		}
+		else {
+		    if (!l || ERTS_RBT_IS_BLACK(l)) {
+			ERTS_RBT_SET_BLACK(r);
+			ERTS_RBT_SET_RED(y);
+			ERTS_RBT_FUNC__(left_rotate__)(root, y);
+
+			p = ERTS_RBT_GET_PARENT(x);
+			y = ERTS_RBT_GET_LEFT(p);
+		    }
+
+		    ERTS_RBT_ASSERT(y);
+
+		    if (p && ERTS_RBT_IS_RED(p)) {
+			ERTS_RBT_SET_BLACK(p);
+			ERTS_RBT_SET_RED(y);
+		    }
+
+		    ERTS_RBT_ASSERT(ERTS_RBT_GET_LEFT(y));
+
+		    ERTS_RBT_SET_BLACK(ERTS_RBT_GET_LEFT(y));
+		    ERTS_RBT_FUNC__(right_rotate__)(root, p);
+		    x = *root;
+		    break;
+		}
+	    }
+	}
+
+	ERTS_RBT_SET_BLACK(x);
+
+	x = &null_x;
+	p = ERTS_RBT_GET_PARENT(x);
+
+	if (p) {
+	    if (ERTS_RBT_GET_LEFT(p) == x)
+		ERTS_RBT_SET_LEFT(p, NULL);
+	    else {
+		ERTS_RBT_ASSERT(ERTS_RBT_GET_RIGHT(p) == x);
+		ERTS_RBT_SET_RIGHT(p, NULL);
+	    }
+
+	    ERTS_RBT_ASSERT(!ERTS_RBT_GET_LEFT(x));
+	    ERTS_RBT_ASSERT(!ERTS_RBT_GET_RIGHT(x));
+	}
+	else if (*root == x) {
+	    *root = NULL;
+
+#ifdef ERTS_RBT_UPDATE_ATTACHED_DATA_CHGROOT
+	    ERTS_RBT_UPDATE_ATTACHED_DATA_CHGROOT(x, NULL);
+#endif
+
+	    ERTS_RBT_ASSERT(!ERTS_RBT_GET_LEFT(x));
+	    ERTS_RBT_ASSERT(!ERTS_RBT_GET_RIGHT(x));
+	}
+    }
+
+    ERTS_RBT_HDBG_CHECK_TREE__(*root);
+
+}
+
+#endif /* ERTS_RBT_WANT_DELETE */
+
+#ifdef ERTS_RBT_NEED_INSERT__
+
+static void
+ERTS_RBT_FUNC__(insert_fixup__)(ERTS_RBT_T **root, ERTS_RBT_T *n)
+{
+    ERTS_RBT_T *x, *y;
+
+    x = n;
+
+    /*
+     * Rearrange the tree so that it satisfies the Red-Black Tree properties
+     */
+
+    ERTS_RBT_ASSERT(x != *root && ERTS_RBT_IS_RED(ERTS_RBT_GET_PARENT(x)));
+    do {
+	ERTS_RBT_T *p, *pp;
+
+	/*
+	 * x and its parent are both red. Move the red pair up the tree
+	 * until we get to the root or until we can separate them.
+	 */
+
+	p = ERTS_RBT_GET_PARENT(x);
+	pp = ERTS_RBT_GET_PARENT(p);
+
+	ERTS_RBT_ASSERT(p && pp);
+	ERTS_RBT_ASSERT(ERTS_RBT_IS_RED(x));
+	ERTS_RBT_ASSERT(ERTS_RBT_IS_BLACK(pp));
+
+	if (p == ERTS_RBT_GET_LEFT(pp)) {
+	    y = ERTS_RBT_GET_RIGHT(pp);
+	    if (y && ERTS_RBT_IS_RED(y)) {
+		ERTS_RBT_SET_BLACK(y);
+		ERTS_RBT_SET_BLACK(p);
+		ERTS_RBT_SET_RED(pp);
+		x = pp;
+	    }
+	    else {
+
+		if (x == ERTS_RBT_GET_RIGHT(p)) {
+		    x = p;
+		    ERTS_RBT_FUNC__(left_rotate__)(root, x);
+		    p = ERTS_RBT_GET_PARENT(x);
+		    pp = ERTS_RBT_GET_PARENT(p);
+
+		    ERTS_RBT_ASSERT(p && pp);
+		}
+
+		ERTS_RBT_ASSERT(x == ERTS_RBT_GET_LEFT(ERTS_RBT_GET_LEFT(pp)));
+		ERTS_RBT_ASSERT(ERTS_RBT_IS_RED(x));
+		ERTS_RBT_ASSERT(ERTS_RBT_IS_RED(p));
+		ERTS_RBT_ASSERT(ERTS_RBT_IS_BLACK(pp));
+		ERTS_RBT_ASSERT(!y || ERTS_RBT_IS_BLACK(y));
+
+
+		ERTS_RBT_SET_BLACK(p);
+		ERTS_RBT_SET_RED(pp);
+		ERTS_RBT_FUNC__(right_rotate__)(root, pp);
+
+
+		ERTS_RBT_ASSERT(ERTS_RBT_GET_LEFT(ERTS_RBT_GET_PARENT(x)) == x);
+		ERTS_RBT_ASSERT(ERTS_RBT_IS_RED(x));
+		ERTS_RBT_ASSERT(ERTS_RBT_IS_RED(
+				    ERTS_RBT_GET_RIGHT(
+					ERTS_RBT_GET_PARENT(x))));
+		ERTS_RBT_ASSERT(!ERTS_RBT_GET_PARENT(x)
+				|| ERTS_RBT_IS_BLACK(ERTS_RBT_GET_PARENT(x)));
+		break;
+	    }
+	}
+	else {
+	    ERTS_RBT_ASSERT(p == ERTS_RBT_GET_RIGHT(pp));
+
+	    y = ERTS_RBT_GET_LEFT(pp);
+	    if (y && ERTS_RBT_IS_RED(y)) {
+		ERTS_RBT_SET_BLACK(y);
+		ERTS_RBT_SET_BLACK(p);
+		ERTS_RBT_SET_RED(pp);
+		x = pp;
+	    }
+	    else {
+
+		if (x == ERTS_RBT_GET_LEFT(p)) {
+		    x = p;
+		    ERTS_RBT_FUNC__(right_rotate__)(root, x);
+		    p = ERTS_RBT_GET_PARENT(x);
+		    pp = ERTS_RBT_GET_PARENT(p);
+
+		    ERTS_RBT_ASSERT(p && pp);
+		}
+
+		ERTS_RBT_ASSERT(x == ERTS_RBT_GET_RIGHT(ERTS_RBT_GET_RIGHT(pp)));
+		ERTS_RBT_ASSERT(ERTS_RBT_IS_RED(x));
+		ERTS_RBT_ASSERT(ERTS_RBT_IS_RED(p));
+		ERTS_RBT_ASSERT(ERTS_RBT_IS_BLACK(pp));
+		ERTS_RBT_ASSERT(!y || ERTS_RBT_IS_BLACK(y));
+
+
+		ERTS_RBT_SET_BLACK(p);
+		ERTS_RBT_SET_RED(pp);
+		ERTS_RBT_FUNC__(left_rotate__)(root, pp);
+
+
+		ERTS_RBT_ASSERT(ERTS_RBT_GET_RIGHT(ERTS_RBT_GET_PARENT(x)) == x);
+		ERTS_RBT_ASSERT(ERTS_RBT_IS_RED(x));
+		ERTS_RBT_ASSERT(ERTS_RBT_IS_RED(
+				    ERTS_RBT_GET_LEFT(
+					ERTS_RBT_GET_PARENT(x))));
+		ERTS_RBT_ASSERT(!ERTS_RBT_GET_PARENT(x)
+				|| ERTS_RBT_IS_BLACK(ERTS_RBT_GET_PARENT(x)));
+		break;
+	    }
+	}
+    } while (x != *root && ERTS_RBT_IS_RED(ERTS_RBT_GET_PARENT(x)));
+
+    ERTS_RBT_SET_BLACK(*root);
+
+}
+
+static ERTS_INLINE ERTS_RBT_T *
+ERTS_RBT_FUNC__(insert_aux__)(ERTS_RBT_T **root, ERTS_RBT_T *n, int lookup)
+{
+    ERTS_RBT_KEY_T kn = ERTS_RBT_GET_KEY(n);
+
+    ERTS_RBT_HDBG_CHECK_TREE__(*root);
+
+    ERTS_RBT_INIT_EMPTY_TNODE(n);	
+
+    if (!*root) {
+	ERTS_RBT_SET_BLACK(n);
+	*root = n;
+#ifdef ERTS_RBT_UPDATE_ATTACHED_DATA_CHGROOT
+	ERTS_RBT_UPDATE_ATTACHED_DATA_CHGROOT(NULL, n);
+#endif
+    }
+    else {
+	ERTS_RBT_T *p, *x = *root;
+
+	while (1) {
+	    ERTS_RBT_KEY_T kx;
+	    ERTS_RBT_T *c;
+
+	    kx = ERTS_RBT_GET_KEY(x);
+
+	    if (lookup && ERTS_RBT_IS_EQ(kn, kx)) {
+
+		ERTS_RBT_HDBG_CHECK_TREE__(*root);
+
+		return x;
+	    }
+
+	    if (ERTS_RBT_IS_LT(kn, kx)) {
+		c = ERTS_RBT_GET_LEFT(x);
+		if (!c) {
+		    ERTS_RBT_SET_PARENT(n, x);
+		    ERTS_RBT_SET_LEFT(x, n);
+		    p = x;
+		    break;
+		}
+	    }
+	    else {
+		c = ERTS_RBT_GET_RIGHT(x);
+		if (!c) {
+		    ERTS_RBT_SET_PARENT(n, x);
+		    ERTS_RBT_SET_RIGHT(x, n);
+		    p = x;
+		    break;
+		}
+	    }
+
+	    x = c;
+	}
+
+	ERTS_RBT_ASSERT(p);
+
+	ERTS_RBT_SET_RED(n);
+	if (ERTS_RBT_IS_RED(p))
+	    ERTS_RBT_FUNC__(insert_fixup__)(root, n);
+    }
+
+    ERTS_RBT_HDBG_CHECK_TREE__(*root);
+
+    return NULL;
+}
+
+#endif /* ERTS_RBT_NEED_INSERT__ */
+
+#ifdef ERTS_RBT_WANT_LOOKUP_INSERT
+
+static ERTS_RBT_API_INLINE__ ERTS_RBT_T *
+ERTS_RBT_FUNC__(lookup_insert)(ERTS_RBT_T **root, ERTS_RBT_T *n)
+{
+    return ERTS_RBT_FUNC__(insert_aux__)(root, n, !0);
+}
+
+#endif /* ERTS_RBT_WANT_LOOKUP_INSERT */
+
+#ifdef ERTS_RBT_WANT_INSERT
+
+static ERTS_RBT_API_INLINE__ void
+ERTS_RBT_FUNC__(insert)(ERTS_RBT_T **root, ERTS_RBT_T *n)
+{
+    (void) ERTS_RBT_FUNC__(insert_aux__)(root, n, 0);
+}
+
+#endif /* ERTS_RBT_WANT_INSERT */
+
+#ifdef ERTS_RBT_WANT_LOOKUP
+
+static ERTS_RBT_API_INLINE__ ERTS_RBT_T *
+ERTS_RBT_FUNC__(lookup)(ERTS_RBT_T *root, ERTS_RBT_KEY_T key)
+{
+    ERTS_RBT_T *x = root;
+
+    if (!x)
+	return NULL;
+
+    while (1) {
+	ERTS_RBT_KEY_T kx = ERTS_RBT_GET_KEY(x);
+	ERTS_RBT_T *c;
+
+	if (ERTS_RBT_IS_EQ(key, kx))
+	    return x;
+
+	if (ERTS_RBT_IS_LT(key, kx)) {
+	    c = ERTS_RBT_GET_LEFT(x);
+	    if (!c)
+		return NULL;
+	}
+	else {
+	    c = ERTS_RBT_GET_RIGHT(x);
+	    if (!c)
+		return NULL;
+	}
+
+	x = c;
+    }
+}
+
+#endif /* ERTS_RBT_WANT_LOOKUP */
+
+#ifdef ERTS_RBT_WANT_SMALLEST
+
+static ERTS_RBT_API_INLINE__ ERTS_RBT_T *
+ERTS_RBT_FUNC__(smallest)(ERTS_RBT_T *root)
+{
+    ERTS_RBT_T *x = root;
+
+    if (!x)
+	return NULL;
+
+    while (1) {
+	ERTS_RBT_T *c = ERTS_RBT_GET_LEFT(x);
+	if (!c)
+	    break;
+	x = c;
+    }
+
+    return x;
+}
+
+#endif /* ERTS_RBT_WANT_SMALLEST */
+
+#ifdef ERTS_RBT_WANT_LARGEST
+
+static ERTS_RBT_API_INLINE__ ERTS_RBT_T *
+ERTS_RBT_FUNC__(largest)(ERTS_RBT_T *root)
+{
+    ERTS_RBT_T *x = root;
+
+    if (!x)
+	return NULL;
+
+    while (1) {
+	ERTS_RBT_T *c = ERTS_RBT_GET_RIGHT(x);
+	if (!c)
+	    break;
+	x = c;
+    }
+
+    return x;
+}
+
+#endif /* ERTS_RBT_WANT_LARGEST */
+
+#ifdef ERTS_RBT_NEED_FOREACH_UNORDERED__
+
+static ERTS_INLINE int
+ERTS_RBT_FUNC__(foreach_unordered__)(ERTS_RBT_T **root,
+				     int destroying,
+				     void (*op)(ERTS_RBT_T *, void *),
+				     void *arg,
+				     int yielding,
+				     ERTS_RBT_YIELD_STATE_T__ *ystate,
+				     Sint ylimit)
+{
+    ERTS_RBT_T *c, *p, *x;
+
+    ERTS_RBT_ASSERT(!yielding || ystate);
+
+    if (yielding && ystate->x) {
+	x = ystate->x;
+	ERTS_RBT_ASSERT(ystate->up);
+	goto restart_up;
+    }
+    else {
+	x = *root;
+	if (!x)
+	    return 0;
+	if (destroying)
+	    *root = NULL;
+    }
+
+    while (1) {
+
+	while (1) {
+
+	    while (1) {
+		c = ERTS_RBT_GET_LEFT(x);
+		if (!c)
+		    break;
+		x = c;
+	    }
+
+	    c = ERTS_RBT_GET_RIGHT(x);
+	    if (!c)
+		break;
+	    x = c;
+	}
+
+	while (1) {
+#ifdef ERTS_RBT_DEBUG
+	    int cdir;
+#endif
+	    if (yielding && ylimit-- <= 0) {
+		ystate->x = x;
+		ystate->up = 1;
+		return 1;
+	    }
+
+	restart_up:
+
+	    p = ERTS_RBT_GET_PARENT(x);
+
+#ifdef ERTS_RBT_DEBUG
+	    ERTS_RBT_ASSERT(!destroying || !ERTS_RBT_GET_LEFT(x));
+	    ERTS_RBT_ASSERT(!destroying || !ERTS_RBT_GET_RIGHT(x));
+
+	    if (p) {
+		if (x == ERTS_RBT_GET_LEFT(p)) {
+		    cdir = -1;
+		    if (destroying)
+			ERTS_RBT_SET_LEFT(p, NULL);
+		}
+		else {
+		    ERTS_RBT_ASSERT(x == ERTS_RBT_GET_RIGHT(p));
+		    cdir = 1;
+		    if (destroying)
+			ERTS_RBT_SET_RIGHT(p, NULL);
+		}
+	    }
+#endif
+
+	    (*op)(x, arg);
+
+	    if (!p) {
+		if (yielding) {
+		    ystate->x = NULL;
+		    ystate->up = 0;
+		}
+		return 0; /* Done */
+	    }
+
+	    c = ERTS_RBT_GET_RIGHT(p);
+	    if (c && c != x) {
+		ERTS_RBT_ASSERT(cdir < 0);
+
+		/* Go down tree of x's sibling... */
+		x = c;
+		break;
+	    }
+
+	    x = p;
+	}
+    }
+}
+
+#endif /* ERTS_RBT_NEED_FOREACH_UNORDERED__ */
+
+#ifdef ERTS_RBT_NEED_FOREACH_ORDERED__
+
+static ERTS_INLINE int
+ERTS_RBT_FUNC__(foreach_ordered__)(ERTS_RBT_T **root,
+				   int from_small,
+				   int destroying,
+				   void (*op)(ERTS_RBT_T *, void *),
+				   void (*destroy)(ERTS_RBT_T *, void *),
+				   void *arg,
+				   int yielding,
+				   ERTS_RBT_YIELD_STATE_T__ *ystate,
+				   Sint ylimit)
+{
+    ERTS_RBT_T *c, *p, *x;
+
+    ERTS_RBT_ASSERT(!yielding || ystate);
+    ERTS_RBT_ASSERT(!destroying || destroy);
+
+    if (yielding && ystate->x) {
+	x = ystate->x;
+	if (ystate->up)
+	    goto restart_up;
+	else
+	    goto restart_down;
+    }
+    else {
+	x = *root;
+	if (!x)
+	    return 0;
+	if (destroying)
+	    *root = NULL;
+    }
+
+    while (1) {
+
+	while (1) {
+
+	    while (1) {
+		c = from_small ? ERTS_RBT_GET_LEFT(x) : ERTS_RBT_GET_RIGHT(x);
+		if (!c)
+		    break;
+		x = c;
+	    }
+
+	    (*op)(x, arg);
+
+	    if (yielding && --ylimit <= 0) {
+		ystate->x = x;
+		ystate->up = 0;
+		return 1;
+	    }
+
+	restart_down:
+
+	    c = from_small ? ERTS_RBT_GET_RIGHT(x) : ERTS_RBT_GET_LEFT(x);
+	    if (!c)
+		break;
+	    x = c;
+	}
+
+	while (1) {
+	    p = ERTS_RBT_GET_PARENT(x);
+
+	    if (p) {
+
+		c = from_small ? ERTS_RBT_GET_RIGHT(p) : ERTS_RBT_GET_LEFT(p);
+		if (!c || c != x) {
+		    ERTS_RBT_ASSERT((from_small
+				     ? ERTS_RBT_GET_LEFT(p)
+				     : ERTS_RBT_GET_RIGHT(p)) == x);
+
+		    (*op)(p, arg);
+
+		    if (yielding && --ylimit <= 0) {
+			ystate->x = x;
+			ystate->up = 1;
+			return 1;
+		    restart_up:
+			p = ERTS_RBT_GET_PARENT(x);
+		    }
+		}
+
+		if (c && c != x) {
+		    ERTS_RBT_ASSERT((from_small
+				     ? ERTS_RBT_GET_LEFT(p)
+				     : ERTS_RBT_GET_RIGHT(p)) == x);
+
+		    /* Go down tree of x's sibling... */
+		    x = c;
+		    break;
+		}
+	    }
+
+	    if (destroying) {
+
+#ifdef ERTS_RBT_DEBUG
+		ERTS_RBT_ASSERT(!ERTS_RBT_GET_LEFT(x)
+				&& !ERTS_RBT_GET_RIGHT(x));
+
+		if (p) {
+		    if (x == ERTS_RBT_GET_LEFT(p))
+			ERTS_RBT_SET_LEFT(p, NULL);
+		    else {
+			ERTS_RBT_ASSERT(x == ERTS_RBT_GET_RIGHT(p));
+			ERTS_RBT_SET_RIGHT(p, NULL);
+		    }
+		}
+#endif
+
+		(*destroy)(x, arg);
+	    }
+
+	    if (!p) {
+		if (yielding) {
+		    ystate->x = NULL;
+		    ystate->up = 0;
+		}
+		return 1; /* Done */
+	    }
+	    x = p;
+	}
+    }
+}
+
+#endif /* ERTS_RBT_NEED_FOREACH_ORDERED__ */
+
+#ifdef ERTS_RBT_WANT_FOREACH
+
+static ERTS_RBT_API_INLINE__ void
+ERTS_RBT_FUNC__(foreach)(ERTS_RBT_T *root,
+			 void (*op)(ERTS_RBT_T *, void *),
+			 void *arg)
+{
+    (void) ERTS_RBT_FUNC__(foreach_unordered__)(&root, 0, op, arg,
+						0, NULL, 0);
+}
+
+#endif /* ERTS_RBT_WANT_FOREACH */
+
+#ifdef ERTS_RBT_WANT_FOREACH_SMALL
+
+static ERTS_RBT_API_INLINE__ void
+ERTS_RBT_FUNC__(foreach_small)(ERTS_RBT_T *root,
+			       void (*op)(ERTS_RBT_T *, void *),
+			       void *arg)
+{
+    (void) ERTS_RBT_FUNC__(foreach_ordered__)(&root, 1, 0,
+					      op, NULL, arg,
+					      0, NULL, 0);
+}
+
+#endif /*  ERTS_RBT_WANT_FOREACH_SMALL */
+
+#ifdef ERTS_RBT_WANT_FOREACH_LARGE
+
+static ERTS_RBT_API_INLINE__ void
+ERTS_RBT_FUNC__(foreach_large)(ERTS_RBT_T *root,
+			       void (*op)(ERTS_RBT_T *, void *),
+			       void *arg)
+{
+    (void) ERTS_RBT_FUNC__(foreach_ordered__)(&root, 0, 0,
+					      op, NULL, arg,
+					      0, NULL, 0);
+}
+
+#endif /* ERTS_RBT_WANT_FOREACH_LARGE */
+
+#ifdef ERTS_RBT_WANT_FOREACH_YIELDING
+
+static ERTS_RBT_API_INLINE__ void
+ERTS_RBT_FUNC__(foreach_yielding)(ERTS_RBT_T *root,
+				  void (*op)(ERTS_RBT_T *, void *),
+				  void *arg,
+				  ERTS_RBT_YIELD_STATE_T__ *ystate,
+				  Sint ylimit)
+{
+    (void) ERTS_RBT_FUNC__(foreach_unordered__)(*root, 0, op, arg,
+						1, ystate, ylimit);
+}
+
+#endif /* ERTS_RBT_WANT_FOREACH_YIELDING */
+
+#ifdef ERTS_RBT_WANT_FOREACH_SMALL_YIELDING
+
+static ERTS_RBT_API_INLINE__ int
+ERTS_RBT_FUNC__(foreach_small_yielding)(ERTS_RBT_T *root,
+					void (*op)(ERTS_RBT_T *, void *),
+					void *arg,
+					ERTS_RBT_YIELD_STATE_T__ *ystate,
+					Sint ylimit)
+{
+    return ERTS_RBT_FUNC__(foreach_ordered__)(&root, 1, 0,
+					      op, NULL, arg,
+					      1, ystate, ylimit);
+}
+
+#endif /* ERTS_RBT_WANT_FOREACH_SMALL_YIELDING */
+
+#ifdef ERTS_RBT_WANT_FOREACH_LARGE_YIELDING
+
+static ERTS_RBT_API_INLINE__ int
+ERTS_RBT_FUNC__(foreach_large_yielding)(ERTS_RBT_T *root,
+					void (*op)(ERTS_RBT_T *, void *),
+					void *arg,
+					ERTS_RBT_YIELD_STATE_T__ *ystate,
+					Sint ylimit)
+{
+    return ERTS_RBT_FUNC__(foreach_ordered__)(&root, 0, 0,
+					      op, NULL, arg,
+					      1, ystate, ylimit);
+}
+
+#endif /* ERTS_RBT_WANT_FOREACH_LARGE_YIELDING */
+
+#ifdef ERTS_RBT_WANT_FOREACH_DESTROY
+
+static ERTS_RBT_API_INLINE__ void
+ERTS_RBT_FUNC__(foreach_destroy)(ERTS_RBT_T **root,
+				 void (*op)(ERTS_RBT_T *, void *),
+				 void *arg)
+{
+    (void) ERTS_RBT_FUNC__(foreach_unordered__)(root, 1, op, arg,
+						0, NULL, 0);
+}
+
+#endif /* ERTS_RBT_WANT_FOREACH_DESTROY */
+
+#ifdef ERTS_RBT_WANT_FOREACH_SMALL_DESTROY
+
+static ERTS_RBT_API_INLINE__ void
+ERTS_RBT_FUNC__(foreach_small_destroy)(ERTS_RBT_T **root,
+				       void (*op)(ERTS_RBT_T *, void *),
+				       void (*destr)(ERTS_RBT_T *, void *),
+				       void *arg)
+{
+    (void) ERTS_RBT_FUNC__(foreach_ordered__)(root, 1, 1,
+					      op, destr, arg,
+					      0, NULL, 0);
+}
+
+#endif /* ERTS_RBT_WANT_FOREACH_SMALL_DESTROY */
+
+#ifdef ERTS_RBT_WANT_FOREACH_LARGE_DESTROY
+
+static ERTS_RBT_API_INLINE__ void
+ERTS_RBT_FUNC__(foreach_large_destroy)(ERTS_RBT_T **root,
+				       void (*op)(ERTS_RBT_T *, void *),
+				       void (*destr)(ERTS_RBT_T *, void *),
+				       void *arg)
+{
+    (void) ERTS_RBT_FUNC__(foreach_ordered__)(root, 0, 1,
+					      op, destr, arg,
+					      0, NULL, 0);
+}
+
+#endif /* ERTS_RBT_WANT_FOREACH_LARGE_DESTROY */
+
+#ifdef ERTS_RBT_WANT_FOREACH_DESTROY_YIELDING
+
+static ERTS_RBT_API_INLINE__ int
+ERTS_RBT_FUNC__(foreach_destroy_yielding)(ERTS_RBT_T **root,
+					  void (*op)(ERTS_RBT_T *, void *),
+					  void *arg,
+					  ERTS_RBT_YIELD_STATE_T__ *ystate,
+					  Sint ylimit)
+{
+    return ERTS_RBT_FUNC__(foreach_unordered__)(root, 1, op, arg,
+						1, ystate, ylimit);
+}
+
+#endif /* ERTS_RBT_WANT_FOREACH_DESTROY_YIELDING */
+
+#ifdef ERTS_RBT_WANT_FOREACH_SMALL_DESTROY_YIELDING
+
+static ERTS_RBT_API_INLINE__ int
+ERTS_RBT_FUNC__(foreach_small_destroy_yielding)(ERTS_RBT_T **root,
+						void (*op)(ERTS_RBT_T *, void *),
+						void (*destr)(ERTS_RBT_T *, void *),
+						void *arg,
+						ERTS_RBT_YIELD_STATE_T__ *ystate,
+						Sint ylimit)
+{
+    return ERTS_RBT_FUNC__(foreach_ordered__)(root, 1, 1,
+					      op, destr, arg,
+					      1, ystate, ylimit);
+}
+
+#endif /* ERTS_RBT_WANT_FOREACH_SMALL_DESTROY_YIELDING */
+
+#ifdef ERTS_RBT_WANT_FOREACH_LARGE_DESTROY_YIELDING
+
+static ERTS_RBT_API_INLINE__ int
+ERTS_RBT_FUNC__(foreach_large_destroy_yielding)(ERTS_RBT_T **root,
+						void (*op)(ERTS_RBT_T *, void *),
+						void (*destr)(ERTS_RBT_T *, void *),
+						void *arg,
+						ERTS_RBT_YIELD_STATE_T__ *ystate,
+						Sint ylimit)
+{
+    return ERTS_RBT_FUNC__(foreach_ordered__)(root, 0, 1,
+					      op, destr, arg,
+					      1, ystate, ylimit);
+}
+
+#endif /* ERTS_RBT_WANT_FOREACH_LARGE_DESTROY_YIELDING */
+
+#ifdef ERTS_RBT_WANT_DEBUG_PRINT
+
+static void
+ERTS_RBT_FUNC__(debug_print)(FILE *filep, ERTS_RBT_T *x, int indent,
+			     void (*print_node)(ERTS_RBT_T *))
+{
+    if (x) {
+	ERTS_RBT_FUNC__(debug_print)(filep, ERTS_RBT_GET_RIGHT(x),
+				     indent+2, print_node);
+	erts_fprintf(filep,
+		     "%*s[%s:%p:",
+		     indent, "",
+		     ERTS_RBT_IS_BLACK(x) ? "Black" : "Red",
+		     x);
+	(*print_node)(x);
+	erts_fprintf(filep, "]\n");
+	ERTS_RBT_FUNC__(debug_print)(filep, ERTS_RBT_GET_LEFT(x),
+				     indent+2, print_node);
+    }
+}
+
+#endif /* ERTS_RBT_WANT_DEBUG_PRINT */
+
+#ifdef ERTS_RBT_NEED_HDBG_CHECK_TREE__
+
+static void
+ERTS_RBT_FUNC__(hdbg_check_tree)(ERTS_RBT_T *root)
+{
+    int black_depth = -1, no_black = 0;
+    ERTS_RBT_T *c, *p, *x = root;
+    ERTS_RBT_KEY_T kx;
+    ERTS_RBT_KEY_T kc;
+
+    if (!x)
+	return;
+
+    ERTS_RBT_ASSERT(!ERTS_RBT_GET_PARENT(x));
+
+    while (1) {
+
+	while (1) {
+
+	    while (1) {
+
+		if (ERTS_RBT_IS_BLACK(x))
+		    no_black++;
+		else {
+		    c = ERTS_RBT_GET_RIGHT(x);
+		    ERTS_RBT_ASSERT(!c || ERTS_RBT_IS_BLACK(c));
+		    c = ERTS_RBT_GET_LEFT(x);
+		    ERTS_RBT_ASSERT(!c || ERTS_RBT_IS_BLACK(c));
+		}
+
+		c = ERTS_RBT_GET_LEFT(x);
+		if (!c)
+		    break;
+
+		ERTS_RBT_ASSERT(x == ERTS_RBT_GET_PARENT(c));
+
+		kx = ERTS_RBT_GET_KEY(x);
+		kc = ERTS_RBT_GET_KEY(c);
+
+		ERTS_RBT_ASSERT(ERTS_RBT_IS_LT(kc, kx)
+				|| ERTS_RBT_IS_EQ(kc, kx));
+
+		x = c;
+	    }
+
+	    c = ERTS_RBT_GET_RIGHT(x);
+	    if (!c) {
+		if (black_depth < 0)
+		    black_depth = no_black;
+		ERTS_RBT_ASSERT(black_depth == no_black);
+		break;
+	    }
+
+	    ERTS_RBT_ASSERT(x == ERTS_RBT_GET_PARENT(c));
+
+	    kx = ERTS_RBT_GET_KEY(x);
+	    kc = ERTS_RBT_GET_KEY(c);
+
+	    ERTS_RBT_ASSERT(ERTS_RBT_IS_LT(kx, kc)
+			    || ERTS_RBT_IS_EQ(kx, kc));
+	    x = c;
+	}
+
+	while (1) {
+	    p = ERTS_RBT_GET_PARENT(x);
+
+	    if (ERTS_RBT_IS_BLACK(x))
+		no_black--;
+
+	    if (p) {
+
+		ERTS_RBT_ASSERT(x == ERTS_RBT_GET_LEFT(p)
+				|| x == ERTS_RBT_GET_RIGHT(p));
+
+		c = ERTS_RBT_GET_RIGHT(p);
+		if (c && c != x) {
+		    ERTS_RBT_ASSERT(ERTS_RBT_GET_LEFT(p) == x);
+
+		    kx = ERTS_RBT_GET_KEY(x);
+		    kc = ERTS_RBT_GET_KEY(c);
+
+		    ERTS_RBT_ASSERT(ERTS_RBT_IS_LT(kx, kc)
+				    || ERTS_RBT_IS_EQ(kx, kc));
+		    /* Go down tree of x's sibling... */
+		    x = c;
+		    break;
+		}
+	    }
+
+	    if (!p) {
+		ERTS_RBT_ASSERT(root == x);
+		ERTS_RBT_ASSERT(no_black == 0);
+		return; /* Done */
+	    }
+
+	    x = p;
+	}
+    }
+}
+
+#undef ERTS_RBT_PRINT_TREE__
+
+#endif /* ERTS_RBT_NEED_HDBG_CHECK_TREE__ */
+
+#undef ERTS_RBT_ASSERT
+#undef ERTS_RBT_DEBUG
+#undef ERTS_RBT_API_INLINE__
+#undef ERTS_RBT_YIELD_STATE_T__
+#undef ERTS_RBT_NEED_REPLACE__
+#undef ERTS_RBT_NEED_INSERT__
+#undef ERTS_RBT_NEED_ROTATE__
+#undef ERTS_RBT_NEED_FOREACH_UNORDERED__
+#undef ERTS_RBT_NEED_FOREACH_ORDERED__
+#undef ERTS_RBT_NEED_HDBG_CHECK_TREE__
+#undef ERTS_RBT_HDBG_CHECK_TREE__
+
+#ifdef ERTS_RBT_UNDEF
+#  undef ERTS_RBT_PREFIX
+#  undef ERTS_RBT_T
+#  undef ERTS_RBT_KEY_T
+#  undef ERTS_RBT_FLAGS_T
+#  undef ERTS_RBT_INIT_EMPTY_TNODE
+#  undef ERTS_RBT_IS_RED
+#  undef ERTS_RBT_SET_RED
+#  undef ERTS_RBT_IS_BLACK
+#  undef ERTS_RBT_SET_BLACK
+#  undef ERTS_RBT_GET_FLAGS
+#  undef ERTS_RBT_SET_FLAGS
+#  undef ERTS_RBT_GET_PARENT
+#  undef ERTS_RBT_SET_PARENT
+#  undef ERTS_RBT_GET_RIGHT
+#  undef ERTS_RBT_SET_RIGHT
+#  undef ERTS_RBT_GET_LEFT
+#  undef ERTS_RBT_SET_LEFT
+#  undef ERTS_RBT_GET_KEY
+#  undef ERTS_RBT_IS_LT
+#  undef ERTS_RBT_IS_EQ
+#  undef ERTS_RBT_UNDEF
+#  undef ERTS_RBT_NO_API_INLINE
+#  undef ERTS_RBT_UPDATE_ATTACHED_DATA_ROTATE
+#  undef ERTS_RBT_UPDATE_ATTACHED_DATA_DMOD
+#  undef ERTS_RBT_UPDATE_ATTACHED_DATA_CHGROOT
+#  undef ERTS_RBT_WANT_DELETE
+#  undef ERTS_RBT_WANT_INSERT
+#  undef ERTS_RBT_WANT_LOOKUP_INSERT
+#  undef ERTS_RBT_WANT_REPLACE
+#  undef ERTS_RBT_WANT_LOOKUP
+#  undef ERTS_RBT_WANT_SMALLEST
+#  undef ERTS_RBT_WANT_LARGEST
+#  undef ERTS_RBT_WANT_FOREACH
+#  undef ERTS_RBT_WANT_FOREACH_DESTROY
+#  undef ERTS_RBT_WANT_FOREACH_YIELDING
+#  undef ERTS_RBT_WANT_FOREACH_DESTROY_YIELDING
+#  undef ERTS_RBT_WANT_FOREACH_SMALL
+#  undef ERTS_RBT_WANT_FOREACH_LARGE
+#  undef ERTS_RBT_WANT_FOREACH_SMALL_DESTROY
+#  undef ERTS_RBT_WANT_FOREACH_LARGE_DESTROY
+#  undef ERTS_RBT_WANT_FOREACH_SMALL_YIELDING
+#  undef ERTS_RBT_WANT_FOREACH_LARGE_YIELDING
+#  undef ERTS_RBT_WANT_FOREACH_SMALL_DESTROY_YIELDING
+#  undef ERTS_RBT_WANT_FOREACH_LARGE_DESTROY_YIELDING
+#  undef ERTS_RBT_WANT_DEBUG_PRINT
+#endif
diff --git a/erts/emulator/beam/erl_term.c b/erts/emulator/beam/erl_term.c
index 28cbe7004f..bc04d7b78e 100644
--- a/erts/emulator/beam/erl_term.c
+++ b/erts/emulator/beam/erl_term.c
@@ -86,11 +86,12 @@ unsigned tag_val_def(Wterm x)
 	    case (_TAG_HEADER_EXTERNAL_PID >> _TAG_PRIMARY_SIZE):	return EXTERNAL_PID_DEF;
 	    case (_TAG_HEADER_EXTERNAL_PORT >> _TAG_PRIMARY_SIZE):	return EXTERNAL_PORT_DEF;
 	    case (_TAG_HEADER_EXTERNAL_REF >> _TAG_PRIMARY_SIZE):	return EXTERNAL_REF_DEF;
+	    case (_TAG_HEADER_MAP >> _TAG_PRIMARY_SIZE):	return MAP_DEF;
 	    case (_TAG_HEADER_REFC_BIN >> _TAG_PRIMARY_SIZE):	return BINARY_DEF;
 	    case (_TAG_HEADER_HEAP_BIN >> _TAG_PRIMARY_SIZE):	return BINARY_DEF;
 	    case (_TAG_HEADER_SUB_BIN >> _TAG_PRIMARY_SIZE):	return BINARY_DEF;
-	    case (_TAG_HEADER_MAP >> _TAG_PRIMARY_SIZE):	return MAP_DEF;
 	  }
+ 
 	  break;
       }
       case TAG_PRIMARY_IMMED1: {
diff --git a/erts/emulator/beam/erl_term.h b/erts/emulator/beam/erl_term.h
index 37014ccf94..602aab46dc 100644
--- a/erts/emulator/beam/erl_term.h
+++ b/erts/emulator/beam/erl_term.h
@@ -147,21 +147,21 @@ struct erl_node_; /* Declared in erl_node_tables.h */
 #define MAP_SUBTAG		(0xF << _TAG_PRIMARY_SIZE) /* MAP */
 
 
-#define _TAG_HEADER_ARITYVAL	(TAG_PRIMARY_HEADER|ARITYVAL_SUBTAG)
-#define _TAG_HEADER_FUN		(TAG_PRIMARY_HEADER|FUN_SUBTAG)
-#define _TAG_HEADER_POS_BIG	(TAG_PRIMARY_HEADER|POS_BIG_SUBTAG)
-#define _TAG_HEADER_NEG_BIG	(TAG_PRIMARY_HEADER|NEG_BIG_SUBTAG)
-#define _TAG_HEADER_FLOAT	(TAG_PRIMARY_HEADER|FLOAT_SUBTAG)
-#define _TAG_HEADER_EXPORT	(TAG_PRIMARY_HEADER|EXPORT_SUBTAG)
-#define _TAG_HEADER_REF		(TAG_PRIMARY_HEADER|REF_SUBTAG)
-#define _TAG_HEADER_REFC_BIN	(TAG_PRIMARY_HEADER|REFC_BINARY_SUBTAG)
-#define _TAG_HEADER_HEAP_BIN	(TAG_PRIMARY_HEADER|HEAP_BINARY_SUBTAG)
-#define _TAG_HEADER_SUB_BIN	(TAG_PRIMARY_HEADER|SUB_BINARY_SUBTAG)
-#define _TAG_HEADER_EXTERNAL_PID  (TAG_PRIMARY_HEADER|EXTERNAL_PID_SUBTAG)
-#define _TAG_HEADER_EXTERNAL_PORT (TAG_PRIMARY_HEADER|EXTERNAL_PORT_SUBTAG)
-#define _TAG_HEADER_EXTERNAL_REF  (TAG_PRIMARY_HEADER|EXTERNAL_REF_SUBTAG)
+#define _TAG_HEADER_ARITYVAL       (TAG_PRIMARY_HEADER|ARITYVAL_SUBTAG)
+#define _TAG_HEADER_FUN	           (TAG_PRIMARY_HEADER|FUN_SUBTAG)
+#define _TAG_HEADER_POS_BIG        (TAG_PRIMARY_HEADER|POS_BIG_SUBTAG)
+#define _TAG_HEADER_NEG_BIG        (TAG_PRIMARY_HEADER|NEG_BIG_SUBTAG)
+#define _TAG_HEADER_FLOAT          (TAG_PRIMARY_HEADER|FLOAT_SUBTAG)
+#define _TAG_HEADER_EXPORT         (TAG_PRIMARY_HEADER|EXPORT_SUBTAG)
+#define _TAG_HEADER_REF            (TAG_PRIMARY_HEADER|REF_SUBTAG)
+#define _TAG_HEADER_REFC_BIN       (TAG_PRIMARY_HEADER|REFC_BINARY_SUBTAG)
+#define _TAG_HEADER_HEAP_BIN       (TAG_PRIMARY_HEADER|HEAP_BINARY_SUBTAG)
+#define _TAG_HEADER_SUB_BIN        (TAG_PRIMARY_HEADER|SUB_BINARY_SUBTAG)
+#define _TAG_HEADER_EXTERNAL_PID   (TAG_PRIMARY_HEADER|EXTERNAL_PID_SUBTAG)
+#define _TAG_HEADER_EXTERNAL_PORT  (TAG_PRIMARY_HEADER|EXTERNAL_PORT_SUBTAG)
+#define _TAG_HEADER_EXTERNAL_REF   (TAG_PRIMARY_HEADER|EXTERNAL_REF_SUBTAG)
 #define _TAG_HEADER_BIN_MATCHSTATE (TAG_PRIMARY_HEADER|BIN_MATCHSTATE_SUBTAG)
-#define _TAG_HEADER_MAP	 	(TAG_PRIMARY_HEADER|MAP_SUBTAG)
+#define _TAG_HEADER_MAP	           (TAG_PRIMARY_HEADER|MAP_SUBTAG)
 
 
 #define _TAG_HEADER_MASK	0x3F
@@ -296,9 +296,10 @@ _ET_DECLARE_CHECKED(Uint,atom_val,Eterm)
 #define atom_val(x)	_ET_APPLY(atom_val,(x))
 
 /* header (arityval or thing) access methods */
-#define _make_header(sz,tag)  ((Uint)(((sz) << _HEADER_ARITY_OFFS) + (tag)))
+#define _make_header(sz,tag) ((Uint)(((Uint)(sz) << _HEADER_ARITY_OFFS) + (tag)))
 #define is_header(x)	(((x) & _TAG_PRIMARY_MASK) == TAG_PRIMARY_HEADER)
-#define _unchecked_header_arity(x)	((x) >> _HEADER_ARITY_OFFS)
+#define _unchecked_header_arity(x) \
+    (is_map_header(x) ? MAP_HEADER_ARITY(x) : ((x) >> _HEADER_ARITY_OFFS))
 _ET_DECLARE_CHECKED(Uint,header_arity,Eterm)
 #define header_arity(x)	_ET_APPLY(header_arity,(x))
 
@@ -361,6 +362,7 @@ _ET_DECLARE_CHECKED(Uint,thing_subtag,Eterm)
 	((((x) & (_TAG_HEADER_MASK)) == _TAG_HEADER_REFC_BIN) || \
 	 (((x) & (_TAG_HEADER_MASK)) == _TAG_HEADER_HEAP_BIN) || \
 	 (((x) & (_TAG_HEADER_MASK)) == _TAG_HEADER_SUB_BIN))
+
 #define make_binary(x)	make_boxed((Eterm*)(x))
 #define is_binary(x)	(is_boxed((x)) && is_binary_header(*boxed_val((x))))
 #define is_not_binary(x) (!is_binary((x)))
@@ -990,6 +992,44 @@ _ET_DECLARE_CHECKED(Uint32*,external_ref_data,Wterm)
 _ET_DECLARE_CHECKED(struct erl_node_*,external_ref_node,Eterm)
 #define external_ref_node(x) _ET_APPLY(external_ref_node,(x))
 
+/* maps */
+
+#define MAP_HEADER_TAG_SZ                 (2)
+#define MAP_HEADER_ARITY_SZ               (8)
+#define MAP_HEADER_VAL_SZ                 (16)
+
+#define MAP_HEADER_TAG_FLATMAP_HEAD       (0x0)
+#define MAP_HEADER_TAG_HAMT_NODE_BITMAP   (0x1)
+#define MAP_HEADER_TAG_HAMT_HEAD_ARRAY    (0x2)
+#define MAP_HEADER_TAG_HAMT_HEAD_BITMAP   (0x3)
+
+#define MAP_HEADER_TYPE(Hdr)  (((Hdr) >> (_HEADER_ARITY_OFFS)) & (0x3))
+#define MAP_HEADER_ARITY(Hdr) (((Hdr) >> (_HEADER_ARITY_OFFS + MAP_HEADER_TAG_SZ)) & (0xff))
+#define MAP_HEADER_VAL(Hdr)   (((Hdr) >> (_HEADER_ARITY_OFFS + MAP_HEADER_TAG_SZ + MAP_HEADER_ARITY_SZ)) & (0xffff))
+
+#define make_hashmap(x)		      make_boxed((Eterm*)(x))
+#define make_hashmap_rel 	      make_boxed_rel
+#define is_hashmap(x)		      (is_boxed((x)) && is_hashmap_header(*boxed_val((x))))
+#define is_not_hashmap(x)             (!is_hashmap(x))
+#define is_hashmap_rel(RTERM,BASE)    is_hashmap(rterm2wterm(RTERM,BASE))
+#define is_hashmap_header(x)	      (((x) & (_HEADER_MAP_HASHMAP_HEAD_MASK)) == HAMT_SUBTAG_HEAD_ARRAY)
+#define hashmap_val(x)		      _unchecked_boxed_val((x))
+#define hashmap_val_rel(RTERM, BASE)  hashmap_val(rterm2wterm(RTERM, BASE))
+
+#define make_flatmap(x)               make_boxed((Eterm*)(x))
+#define make_flatmap_rel(x, BASE)     make_boxed_rel((Eterm*)(x),(BASE))
+#define is_flatmap(x)                 (is_boxed((x)) && is_flatmap_header(*boxed_val((x))))
+#define is_flatmap_rel(RTERM,BASE)    is_flatmap(rterm2wterm(RTERM,BASE))
+#define is_not_flatmap(x)             (!is_flatmap((x)))
+#define is_flatmap_header(x)          (((x) & (_HEADER_MAP_SUBTAG_MASK)) == HAMT_SUBTAG_HEAD_FLATMAP)
+#define flatmap_val(x)                (_unchecked_boxed_val((x)))
+#define flatmap_val_rel(RTERM, BASE)  flatmap_val(rterm2wterm(RTERM, BASE))
+
+#define is_map_header(x)       (((x) & (_TAG_HEADER_MASK)) == _TAG_HEADER_MAP)
+#define is_map(x)              (is_boxed((x)) && is_map_header(*boxed_val(x)))
+#define is_not_map(x)          (!is_map(x))
+#define is_map_rel(RTERM,BASE) is_map(rterm2wterm(RTERM,BASE))
+
 /* number tests */
 
 #define is_integer(x)		(is_small(x) || is_big(x))
@@ -1096,6 +1136,8 @@ _ET_DECLARE_CHECKED(Uint,y_reg_index,Uint)
 #define BIG_DEF			0xf
 #define SMALL_DEF		0x10
 
+#define FIRST_VACANT_TAG_DEF    0x11
+
 #if ET_DEBUG
 extern unsigned tag_val_def_debug(Wterm, const char*, unsigned);
 #define tag_val_def(x)	tag_val_def_debug((x),__FILE__,__LINE__)
diff --git a/erts/emulator/beam/erl_thr_progress.c b/erts/emulator/beam/erl_thr_progress.c
index 664c479eb6..78e0964e8b 100644
--- a/erts/emulator/beam/erl_thr_progress.c
+++ b/erts/emulator/beam/erl_thr_progress.c
@@ -1335,25 +1335,10 @@ erts_thr_progress_block(void)
     thr_progress_block(tmp_thr_prgr_data(NULL), 1);
 }
 
-void
-erts_thr_progress_fatal_error_block(SWord timeout,
-				    ErtsThrPrgrData *tmp_tpd_bufp)
+int
+erts_thr_progress_fatal_error_block(ErtsThrPrgrData *tmp_tpd_bufp)
 {
     ErtsThrPrgrData *tpd = perhaps_thr_prgr_data(NULL);
-    erts_aint32_t bc;
-    SWord time_left = timeout;
-    SysTimeval to;
-
-    /*
-     * Counting poll intervals may give us a too long timeout
-     * if cpu is busy. If we got tolerant time of day we use it
-     * to prevent this.
-     */
-    if (!erts_disable_tolerant_timeofday) {
-	erts_get_timeval(&to);
-	to.tv_sec += timeout / 1000;
-	to.tv_sec += timeout % 1000;
-    }
 
     if (!tpd) {
 	/*
@@ -1366,9 +1351,25 @@ erts_thr_progress_fatal_error_block(SWord timeout,
 	init_tmp_thr_prgr_data(tpd);
     }
 
-    bc = thr_progress_block(tpd, 0);
-    if (bc == 0)
-	return; /* Succefully blocked all managed threads */
+    /* Returns number of threads that have not yes been blocked */
+    return thr_progress_block(tpd, 0);
+}
+
+void
+erts_thr_progress_fatal_error_wait(SWord timeout) {
+    erts_aint32_t bc;
+    SWord time_left = timeout;
+    ErtsMonotonicTime timeout_time;
+    ErtsSchedulerData *esdp = erts_get_scheduler_data();
+
+    /*
+     * Counting poll intervals may give us a too long timeout
+     * if cpu is busy. We use timeout time to try to prevent
+     * this. In case we havn't got time correction this may
+     * however fail too...
+     */
+    timeout_time = erts_get_monotonic_time(esdp);
+    timeout_time += ERTS_MSEC_TO_MONOTONIC((ErtsMonotonicTime) timeout);
 
     while (1) {
 	if (erts_milli_sleep(ERTS_THR_PRGR_FTL_ERR_BLCK_POLL_INTERVAL) == 0)
@@ -1378,14 +1379,8 @@ erts_thr_progress_fatal_error_block(SWord timeout,
 	    break; /* Succefully blocked all managed threads */
 	if (time_left <= 0)
 	    break; /* Timeout */
-	if (!erts_disable_tolerant_timeofday) {
-	    SysTimeval now;
-	    erts_get_timeval(&now);
-	    if (now.tv_sec > to.tv_sec)
-		break; /* Timeout */
-	    if (now.tv_sec == to.tv_sec && now.tv_usec >= to.tv_usec)
-		break; /* Timeout */
-	}
+	if (timeout_time <= erts_get_monotonic_time(esdp))
+	    break; /* Timeout */
     }
 }
 
diff --git a/erts/emulator/beam/erl_thr_progress.h b/erts/emulator/beam/erl_thr_progress.h
index 03ddbd467c..cf11c4e114 100644
--- a/erts/emulator/beam/erl_thr_progress.h
+++ b/erts/emulator/beam/erl_thr_progress.h
@@ -83,8 +83,8 @@ typedef struct {
     ErtsThrPrgrLeaderState leader_state;
 } ErtsThrPrgrData;
 
-void erts_thr_progress_fatal_error_block(SWord timeout,
-					 ErtsThrPrgrData *tmp_tpd_bufp);
+int erts_thr_progress_fatal_error_block(ErtsThrPrgrData *tmp_tpd_bufp);
+void erts_thr_progress_fatal_error_wait(SWord timeout);
 
 #endif /* ERTS_SMP */
 
diff --git a/erts/emulator/beam/erl_threads.h b/erts/emulator/beam/erl_threads.h
index 7214f3ea33..dc20ac207f 100644
--- a/erts/emulator/beam/erl_threads.h
+++ b/erts/emulator/beam/erl_threads.h
@@ -476,6 +476,7 @@ ERTS_GLB_INLINE void erts_thr_detach(erts_tid_t tid);
 ERTS_GLB_INLINE void erts_thr_exit(void *res);
 ERTS_GLB_INLINE void erts_thr_install_exit_handler(void (*exit_handler)(void));
 ERTS_GLB_INLINE erts_tid_t erts_thr_self(void);
+ERTS_GLB_INLINE int erts_thr_getname(erts_tid_t tid, char *buf, size_t len);
 ERTS_GLB_INLINE int erts_equal_tids(erts_tid_t x, erts_tid_t y);
 ERTS_GLB_INLINE void erts_mtx_init_x(erts_mtx_t *mtx, char *name, Eterm extra,
 				     int enable_lcnt);
@@ -651,16 +652,24 @@ ERTS_GLB_INLINE void erts_tse_set(erts_tse_t *ep);
 ERTS_GLB_INLINE void erts_tse_reset(erts_tse_t *ep);
 ERTS_GLB_INLINE int erts_tse_wait(erts_tse_t *ep);
 ERTS_GLB_INLINE int erts_tse_swait(erts_tse_t *ep, int spincount);
+ERTS_GLB_INLINE int erts_tse_twait(erts_tse_t *ep, Sint64 tmo);
+ERTS_GLB_INLINE int erts_tse_stwait(erts_tse_t *ep, int spincount, Sint64 tmo);
 ERTS_GLB_INLINE int erts_tse_is_tmp(erts_tse_t *ep);
 ERTS_GLB_INLINE void erts_thr_set_main_status(int, int);
 ERTS_GLB_INLINE int erts_thr_get_main_status(void);
 ERTS_GLB_INLINE void erts_thr_yield(void);
 
+
 #ifdef ETHR_HAVE_ETHR_SIG_FUNCS
 #define ERTS_THR_HAVE_SIG_FUNCS 1
 ERTS_GLB_INLINE void erts_thr_sigmask(int how, const sigset_t *set,
 				      sigset_t *oset);
 ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
+
+#ifdef USE_THREADS
+ERTS_GLB_INLINE void erts_thr_kill(erts_tid_t tid, int sig);
+#endif
+
 #endif /* #ifdef HAVE_ETHR_SIG_FUNCS */
 
 #ifdef USE_THREADS
@@ -2129,6 +2138,16 @@ erts_thr_self(void)
 #endif
 }
 
+ERTS_GLB_INLINE int
+erts_thr_getname(erts_tid_t tid, char *buf, size_t len)
+{
+#ifdef USE_THREADS
+    return ethr_getname(tid, buf, len);
+#else
+    return -1;
+#endif
+}
+
 
 ERTS_GLB_INLINE int
 erts_equal_tids(erts_tid_t x, erts_tid_t y)
@@ -3473,6 +3492,27 @@ ERTS_GLB_INLINE int erts_tse_swait(erts_tse_t *ep, int spincount)
 #endif
 }
 
+ERTS_GLB_INLINE int erts_tse_twait(erts_tse_t *ep, Sint64 tmo)
+{
+#ifdef USE_THREADS
+    return ethr_event_twait(&((ethr_ts_event *) ep)->event,
+			    (ethr_sint64_t) tmo);
+#else
+    return ENOTSUP;
+#endif
+}
+
+ERTS_GLB_INLINE int erts_tse_stwait(erts_tse_t *ep, int spincount, Sint64 tmo)
+{
+#ifdef USE_THREADS
+    return ethr_event_stwait(&((ethr_ts_event *) ep)->event,
+			     spincount,
+			     (ethr_sint64_t) tmo);
+#else
+    return ENOTSUP;
+#endif
+}
+
 ERTS_GLB_INLINE int erts_tse_is_tmp(erts_tse_t *ep)
 {
 #ifdef USE_THREADS
@@ -3517,6 +3557,15 @@ ERTS_GLB_INLINE void erts_thr_yield(void)
 #ifdef ETHR_HAVE_ETHR_SIG_FUNCS
 
 ERTS_GLB_INLINE void
+erts_thr_kill(erts_tid_t tid, int sig) {
+#ifdef USE_THREADS
+  int res = ethr_kill((ethr_tid)tid, sig);
+  if (res)
+    erts_thr_fatal_error(res, "killing thread");
+#endif
+}
+
+ERTS_GLB_INLINE void
 erts_thr_sigmask(int how, const sigset_t *set, sigset_t *oset)
 {
 #ifdef USE_THREADS
diff --git a/erts/emulator/beam/erl_time.h b/erts/emulator/beam/erl_time.h
index 4bbdcaa3e3..4560cd23af 100644
--- a/erts/emulator/beam/erl_time.h
+++ b/erts/emulator/beam/erl_time.h
@@ -20,94 +20,49 @@
 #ifndef ERL_TIME_H__
 #define ERL_TIME_H__
 
-#define ERTS_SHORT_TIME_T_MAX ERTS_AINT32_T_MAX
-#define ERTS_SHORT_TIME_T_MIN ERTS_AINT32_T_MIN
-typedef erts_aint32_t erts_short_time_t;
+/* timer wheel size NEED to be a power of 2 */
+#ifdef SMALL_MEMORY
+#define ERTS_TIW_SIZE (1 << 13)
+#else
+#define ERTS_TIW_SIZE (1 << 16)
+#endif
 
-extern erts_smp_atomic32_t do_time;	/* set at clock interrupt */
-extern SysTimeval erts_first_emu_time;
+#if defined(DEBUG) || 0
+#define ERTS_TIME_ASSERT(B) ERTS_ASSERT(B)
+#else
+#define ERTS_TIME_ASSERT(B) ((void) 1)
+#endif
 
-/*
-** Timer entry:
-*/
-typedef struct erl_timer {
-    struct erl_timer* next;	/* next entry tiw slot or chain */
-    struct erl_timer* prev;	/* prev entry tiw slot or chain */
-    Uint slot;			/* slot in timer wheel */
-    Uint count;			/* number of loops remaining */
-    int    active;		/* 1=activated, 0=deactivated */
-    /* called when timeout */
-    void (*timeout)(void*);
-    /* called when cancel (may be NULL) */
-    void (*cancel)(void*);
-    void* arg;        /* argument to timeout/cancel procs */
-} ErlTimer;
+typedef enum {
+    ERTS_NO_TIME_WARP_MODE,
+    ERTS_SINGLE_TIME_WARP_MODE,
+    ERTS_MULTI_TIME_WARP_MODE
+} ErtsTimeWarpMode;
 
-typedef void (*ErlTimeoutProc)(void*);
-typedef void (*ErlCancelProc)(void*);
+typedef struct ErtsTimerWheel_ ErtsTimerWheel;
+typedef ErtsMonotonicTime * ErtsNextTimeoutRef;
 
-#ifdef ERTS_SMP
-/*
- * Process and port timer
- */
-typedef union ErtsSmpPTimer_ ErtsSmpPTimer;
-union ErtsSmpPTimer_ {
-    struct {
-	ErlTimer tm;
-	Eterm id;
-	void (*timeout_func)(void*);
-	ErtsSmpPTimer **timer_ref;
-	Uint32 flags;
-    } timer;
-    ErtsSmpPTimer *next;
-};
+extern SysTimeval erts_first_emu_time;
 
 
-void erts_create_smp_ptimer(ErtsSmpPTimer **timer_ref,
-			    Eterm id,
-			    ErlTimeoutProc timeout_func,
-			    Uint timeout);
-void erts_cancel_smp_ptimer(ErtsSmpPTimer *ptimer);
-#endif
+void erts_monitor_time_offset(Eterm id, Eterm ref);
+int erts_demonitor_time_offset(Eterm ref);
 
-/* timer-wheel api */
+int erts_init_time_sup(int, ErtsTimeWarpMode);
+void erts_late_init_time_sup(void);
 
-void erts_init_time(void);
-void erts_set_timer(ErlTimer*, ErlTimeoutProc, ErlCancelProc, void*, Uint);
-void erts_cancel_timer(ErlTimer*);
-void erts_bump_timer(erts_short_time_t);
+ErtsNextTimeoutRef erts_get_next_timeout_reference(ErtsTimerWheel *);
+void erts_init_time(int time_correction, ErtsTimeWarpMode time_warp_mode);
+void erts_bump_timers(ErtsTimerWheel *, ErtsMonotonicTime);
 Uint erts_timer_wheel_memory_size(void);
-Uint erts_time_left(ErlTimer *);
-erts_short_time_t erts_next_time(void);
 
 #ifdef DEBUG
 void erts_p_slpq(void);
 #endif
 
-ERTS_GLB_INLINE erts_short_time_t erts_do_time_read_and_reset(void);
-ERTS_GLB_INLINE void erts_do_time_add(erts_short_time_t);
-
-#if ERTS_GLB_INLINE_INCL_FUNC_DEF
-
-ERTS_GLB_INLINE erts_short_time_t erts_do_time_read_and_reset(void)
-{
-    erts_short_time_t time = erts_smp_atomic32_xchg_acqb(&do_time, 0);
-    if (time < 0)
-	erl_exit(ERTS_ABORT_EXIT, "Internal time management error\n");
-    return time;
-}
-
-ERTS_GLB_INLINE void erts_do_time_add(erts_short_time_t elapsed)
-{
-    erts_smp_atomic32_add_relb(&do_time, elapsed);
-}
-
-#endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */
-
-
 /* time_sup */
 
-#if (defined(HAVE_GETHRVTIME) || defined(HAVE_CLOCK_GETTIME))
+#if (defined(HAVE_GETHRVTIME) || defined(HAVE_CLOCK_GETTIME_CPU_TIME))
 #  ifndef HAVE_ERTS_NOW_CPU
 #    define HAVE_ERTS_NOW_CPU
 #    ifdef HAVE_GETHRVTIME
@@ -121,25 +76,381 @@ void erts_get_now_cpu(Uint* megasec, Uint* sec, Uint* microsec);
 typedef UWord erts_approx_time_t;
 erts_approx_time_t erts_get_approx_time(void);
 
-void erts_get_timeval(SysTimeval *tv);
-erts_time_t erts_get_time(void);
+int erts_has_time_correction(void);
+int erts_check_time_adj_support(int time_correction,
+				ErtsTimeWarpMode time_warp_mode);
+
+ErtsTimeWarpMode erts_time_warp_mode(void);
+
+typedef enum {
+    ERTS_TIME_OFFSET_PRELIMINARY,
+    ERTS_TIME_OFFSET_FINAL,
+    ERTS_TIME_OFFSET_VOLATILE
+} ErtsTimeOffsetState;
 
-ERTS_GLB_INLINE int erts_cmp_timeval(SysTimeval *t1p, SysTimeval *t2p);
+ErtsTimeOffsetState erts_time_offset_state(void); 
+ErtsTimeOffsetState erts_finalize_time_offset(void); 
+struct process;
+Eterm erts_get_monotonic_start_time(struct process *c_p);
+Eterm erts_get_monotonic_end_time(struct process *c_p);
+Eterm erts_monotonic_time_source(struct process*c_p);
+Eterm erts_system_time_source(struct process*c_p);
+
+#ifdef SYS_CLOCK_RESOLUTION
+#define ERTS_CLKTCK_RESOLUTION ((ErtsMonotonicTime) (SYS_CLOCK_RESOLUTION*1000))
+#else
+#define ERTS_CLKTCK_RESOLUTION (erts_time_sup__.r.o.clktck_resolution)
+#endif
+
+#define ERTS_TIMER_WHEEL_MSEC (ERTS_TIW_SIZE/(ERTS_CLKTCK_RESOLUTION/1000))
+
+struct erts_time_sup_read_only__ {
+    ErtsMonotonicTime monotonic_time_unit;
+#if !ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT
+    ErtsMonotonicTime start;
+    struct {
+	ErtsMonotonicTime native;
+	ErtsMonotonicTime nsec;
+	ErtsMonotonicTime usec;
+	ErtsMonotonicTime msec;
+	ErtsMonotonicTime sec;
+    } start_offset;
+#endif
+#ifndef SYS_CLOCK_RESOLUTION
+    ErtsMonotonicTime clktck_resolution;
+#endif
+};
+
+typedef struct {
+    union {
+	struct erts_time_sup_read_only__ o;
+	char align__[(((sizeof(struct erts_time_sup_read_only__) - 1)
+		       / ASSUMED_CACHE_LINE_SIZE) + 1)
+		     * ASSUMED_CACHE_LINE_SIZE];
+    } r;
+} ErtsTimeSupData;
+
+extern ErtsTimeSupData erts_time_sup__;
+
+ERTS_GLB_INLINE Uint64
+erts_time_unit_conversion(Uint64 value,
+			  Uint32 from_time_unit,
+			  Uint32 to_time_unit);
 
 #if ERTS_GLB_INLINE_INCL_FUNC_DEF
 
-ERTS_GLB_INLINE int
-erts_cmp_timeval(SysTimeval *t1p, SysTimeval *t2p)
+ERTS_GLB_INLINE Uint64
+erts_time_unit_conversion(Uint64 value,
+			  Uint32 from_time_unit,
+			  Uint32 to_time_unit)
 {
-    if (t1p->tv_sec == t2p->tv_sec) {
-	if (t1p->tv_usec < t2p->tv_usec)
-	    return -1;
-	else if (t1p->tv_usec > t2p->tv_usec)
-	    return 1;
-	return 0;
-    }
-    return t1p->tv_sec < t2p->tv_sec ? -1 : 1;
+    Uint64 high, low, result;
+    if (value <= ~((Uint64) 0)/to_time_unit)
+	return (value*to_time_unit)/from_time_unit;
+
+    low = value & ((Uint64) 0xffffffff);
+    high = (value >> 32) & ((Uint64) 0xffffffff);
+
+    low *= to_time_unit;
+    high *= to_time_unit;
+
+    high += (low >> 32) & ((Uint64) 0xffffffff);
+    low &= ((Uint64) 0xffffffff);
+
+    result = high % from_time_unit;
+    high /= from_time_unit;
+    high <<= 32;
+
+    result <<= 32;
+    result += low;
+    result /= from_time_unit;
+    result += high;
+
+    return result;
 }
 
-#endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */
+#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
+
+/*
+ * Range of monotonic time internally
+ */
+
+#define ERTS_MONOTONIC_BEGIN						\
+    ERTS_MONOTONIC_TIME_UNIT
+#define ERTS_MONOTONIC_END						\
+    ((ERTS_MONOTONIC_TIME_MAX / ERTS_MONOTONIC_TIME_UNIT)		\
+     * ERTS_MONOTONIC_TIME_UNIT)
+
+#if ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT
+
+/*
+ * If the monotonic time unit is a compile time constant,
+ * it is assumed (and need) to be a power of 10.
+ */
+
+#if ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT < 1000*1000
+#  error Compile time time unit needs to be at least 1000000
+#endif
+
+#if ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT == 1000*1000*1000
+/* Nano-second time unit */
+
+#define ERTS_MONOTONIC_TO_SEC__(NSEC) ((NSEC) / (1000*1000*1000))
+#define ERTS_MONOTONIC_TO_MSEC__(NSEC) ((NSEC) / (1000*1000))
+#define ERTS_MONOTONIC_TO_USEC__(NSEC) ((NSEC) / 1000)
+#define ERTS_MONOTONIC_TO_NSEC__(NSEC) (NSEC)
+
+#define ERTS_SEC_TO_MONOTONIC__(SEC) (((ErtsMonotonicTime) (SEC))*(1000*1000*1000))
+#define ERTS_MSEC_TO_MONOTONIC__(MSEC) (((ErtsMonotonicTime) (MSEC))*(1000*1000))
+#define ERTS_USEC_TO_MONOTONIC__(USEC) (((ErtsMonotonicTime) (USEC))*1000)
+#define ERTS_NSEC_TO_MONOTONIC__(NSEC) ((ErtsMonotonicTime) (NSEC))
+
+#elif ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT == 1000*1000
+/* Micro-second time unit */
+
+#define ERTS_MONOTONIC_TO_SEC__(USEC) ((USEC) / (1000*1000))
+#define ERTS_MONOTONIC_TO_MSEC__(USEC) ((USEC) / 1000)
+#define ERTS_MONOTONIC_TO_USEC__(USEC) (USEC)
+#define ERTS_MONOTONIC_TO_NSEC__(USEC) ((USEC)*1000)
+
+#define ERTS_SEC_TO_MONOTONIC__(SEC) (((ErtsMonotonicTime) (SEC))*(1000*1000))
+#define ERTS_MSEC_TO_MONOTONIC__(MSEC) (((ErtsMonotonicTime) (MSEC))*1000)
+#define ERTS_USEC_TO_MONOTONIC__(USEC) ((ErtsMonotonicTime) (USEC))
+#define ERTS_NSEC_TO_MONOTONIC__(NSEC) (((ErtsMonotonicTime) (NSEC))/1000)
+
+#else
+#error Missing implementation for monotonic time unit
+#endif
+
+#define ERTS_MONOTONIC_TIME_UNIT \
+    ((ErtsMonotonicTime) ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT)
+
+/*
+ * NOTE! ERTS_MONOTONIC_TIME_START_EXTERNAL *need* to be a multiple
+ *       of ERTS_MONOTONIC_TIME_UNIT.
+ */
+
+#ifdef ARCH_32
+/*
+ * Want to use a big-num of arity 2 as long as possible (584 years
+ * in the nano-second time unit case).
+ */
+#define ERTS_MONOTONIC_TIME_START_EXTERNAL		\
+    (((((((ErtsMonotonicTime) 1) << 32)-1)	\
+       / ERTS_MONOTONIC_TIME_UNIT)		\
+      * ERTS_MONOTONIC_TIME_UNIT)		\
+     + ERTS_MONOTONIC_TIME_UNIT)
+
+#else /* ARCH_64 */
+
+#if ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT <= 10*1000*1000
+
+/*
+ * Using micro second time unit or lower. Start at zero since
+ * time will remain an immediate for a very long time anyway
+ * (1827 years in the 10 micro second case)...
+ */
+#define ERTS_MONOTONIC_TIME_START_EXTERNAL ((ErtsMonotonicTime) 0)
+
+#else /* ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT > 10*1000*1000 */
+
+/*
+ * Want to use an immediate as long as possible (36 years in the
+ * nano-second time unit case).
+*/
+#define ERTS_MONOTONIC_TIME_START_EXTERNAL 		\
+    ((((ErtsMonotonicTime) MIN_SMALL)		\
+      / ERTS_MONOTONIC_TIME_UNIT)		\
+     * ERTS_MONOTONIC_TIME_UNIT)
+
+#endif /* ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT > 1000*1000 */
+
+#endif /* ARCH_64 */
+
+/*
+ * Offsets from internal monotonic time to external monotonic time
+ */
+
+#define ERTS_MONOTONIC_OFFSET_NATIVE \
+    (ERTS_MONOTONIC_TIME_START_EXTERNAL - ERTS_MONOTONIC_BEGIN)
+#define ERTS_MONOTONIC_OFFSET_NSEC					\
+    ERTS_MONOTONIC_TO_NSEC__(ERTS_MONOTONIC_OFFSET_NATIVE)
+#define ERTS_MONOTONIC_OFFSET_USEC					\
+    ERTS_MONOTONIC_TO_USEC__(ERTS_MONOTONIC_OFFSET_NATIVE)
+#define ERTS_MONOTONIC_OFFSET_MSEC					\
+    ERTS_MONOTONIC_TO_MSEC__(ERTS_MONOTONIC_OFFSET_NATIVE)
+#define ERTS_MONOTONIC_OFFSET_SEC					\
+    ERTS_MONOTONIC_TO_SEC__(ERTS_MONOTONIC_OFFSET_NATIVE)
+
+#define ERTS_MONOTONIC_TO_CLKTCKS__(MON) \
+    ((MON) / (ERTS_MONOTONIC_TIME_UNIT/ERTS_CLKTCK_RESOLUTION))
+#define ERTS_CLKTCKS_TO_MONOTONIC__(TCKS) \
+    ((TCKS) * (ERTS_MONOTONIC_TIME_UNIT/ERTS_CLKTCK_RESOLUTION))
+
+#else /* !ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT */
+
+/*
+ * Initialized in erts_init_sys_time_sup()
+ */
+#define ERTS_MONOTONIC_TIME_UNIT (erts_time_sup__.r.o.monotonic_time_unit)
+
+/*
+ * Offsets from internal monotonic time to external monotonic time
+ *
+ * Initialized in erts_init_time_sup()...
+ */
+#define ERTS_MONOTONIC_TIME_START_EXTERNAL (erts_time_sup__.r.o.start)
+#define ERTS_MONOTONIC_OFFSET_NATIVE (erts_time_sup__.r.o.start_offset.native)
+#define ERTS_MONOTONIC_OFFSET_NSEC (erts_time_sup__.r.o.start_offset.nsec)
+#define ERTS_MONOTONIC_OFFSET_USEC (erts_time_sup__.r.o.start_offset.usec)
+#define ERTS_MONOTONIC_OFFSET_MSEC (erts_time_sup__.r.o.start_offset.msec)
+#define ERTS_MONOTONIC_OFFSET_SEC (erts_time_sup__.r.o.start_offset.sec)
+
+#define ERTS_CONV_FROM_MON_UNIT___(M, TO)				\
+    ((ErtsMonotonicTime)						\
+     erts_time_unit_conversion((Uint64) (M),				\
+			       (Uint32) ERTS_MONOTONIC_TIME_UNIT,	\
+			       (Uint32) (TO)))
+
+#define ERTS_CONV_TO_MON_UNIT___(M, FROM)				\
+    ((ErtsMonotonicTime)						\
+     erts_time_unit_conversion((Uint64) (M),				\
+			       (Uint32) (FROM),				\
+			       (Uint32) ERTS_MONOTONIC_TIME_UNIT))	\
+
+#define ERTS_MONOTONIC_TO_SEC__(M) \
+    ERTS_CONV_FROM_MON_UNIT___((M), 1)
+#define ERTS_MONOTONIC_TO_MSEC__(M) \
+    ERTS_CONV_FROM_MON_UNIT___((M), 1000)
+#define ERTS_MONOTONIC_TO_USEC__(M) \
+    ERTS_CONV_FROM_MON_UNIT___((M), 1000*1000)
+#define ERTS_MONOTONIC_TO_NSEC__(M) \
+    ERTS_CONV_FROM_MON_UNIT___((M), 1000*1000*1000)
+
+#define ERTS_SEC_TO_MONOTONIC__(SEC) \
+    ERTS_CONV_TO_MON_UNIT___((SEC), 1)
+#define ERTS_MSEC_TO_MONOTONIC__(MSEC) \
+    ERTS_CONV_TO_MON_UNIT___((MSEC), 1000)
+#define ERTS_USEC_TO_MONOTONIC__(USEC) \
+    ERTS_CONV_TO_MON_UNIT___((USEC), 1000*1000)
+#define ERTS_NSEC_TO_MONOTONIC__(NSEC) \
+    ERTS_CONV_TO_MON_UNIT___((NSEC), 1000*1000*1000)
+
+#define ERTS_MONOTONIC_TO_CLKTCKS__(MON) \
+    ERTS_CONV_FROM_MON_UNIT___((MON), ERTS_CLKTCK_RESOLUTION)
+#define ERTS_CLKTCKS_TO_MONOTONIC__(TCKS) \
+    ERTS_CONV_TO_MON_UNIT___((TCKS), ERTS_CLKTCK_RESOLUTION)
+
+#endif /* !ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT */
+
+#define ERTS_MONOTONIC_TIME_END_EXTERNAL				\
+    (ERTS_MONOTONIC_TIME_START_EXTERNAL					\
+     + (ERTS_MONOTONIC_END - ERTS_MONOTONIC_BEGIN))
+
+#define ERTS_MSEC_TO_CLKTCKS__(MON) \
+    ((MON) * (ERTS_CLKTCK_RESOLUTION/1000))
+#define ERTS_CLKTCKS_TO_MSEC__(TCKS) \
+    ((TCKS) / (ERTS_CLKTCK_RESOLUTION/1000))
+
+#define ERTS_MONOTONIC_TO_SEC(X)	\
+    (ERTS_TIME_ASSERT((X) >= 0),	\
+     ERTS_MONOTONIC_TO_SEC__((X)))
+#define ERTS_MONOTONIC_TO_MSEC(X)	\
+    (ERTS_TIME_ASSERT((X) >= 0),	\
+     ERTS_MONOTONIC_TO_MSEC__((X)))
+#define ERTS_MONOTONIC_TO_USEC(X)	\
+    (ERTS_TIME_ASSERT((X) >= 0),	\
+     ERTS_MONOTONIC_TO_USEC__((X)))
+#define ERTS_MONOTONIC_TO_NSEC(X)	\
+    (ERTS_TIME_ASSERT((X) >= 0),	\
+     ERTS_MONOTONIC_TO_NSEC__((X)))
+#define ERTS_SEC_TO_MONOTONIC(X)	\
+    (ERTS_TIME_ASSERT((X) >= 0),	\
+     ERTS_SEC_TO_MONOTONIC__((X)))
+#define ERTS_MSEC_TO_MONOTONIC(X)	\
+    (ERTS_TIME_ASSERT((X) >= 0),	\
+     ERTS_MSEC_TO_MONOTONIC__((X)))
+#define ERTS_USEC_TO_MONOTONIC(X)	\
+    (ERTS_TIME_ASSERT((X) >= 0),	\
+     ERTS_USEC_TO_MONOTONIC__((X)))
+#define ERTS_NSEC_TO_MONOTONIC(X)	\
+    (ERTS_TIME_ASSERT((X) >= 0),	\
+     ERTS_NSEC_TO_MONOTONIC__((X)))
+
+#define ERTS_MONOTONIC_TO_CLKTCKS(X) \
+    (ERTS_TIME_ASSERT((X) >= 0),		\
+     ERTS_MONOTONIC_TO_CLKTCKS__((X)))
+#define ERTS_CLKTCKS_TO_MONOTONIC(X) \
+    (ERTS_TIME_ASSERT((X) >= 0),		\
+     ERTS_CLKTCKS_TO_MONOTONIC__((X)))
+
+#define ERTS_MSEC_TO_CLKTCKS(X) \
+    (ERTS_TIME_ASSERT((X) >= 0),		\
+     ERTS_MSEC_TO_CLKTCKS__((X)))
+#define ERTS_CLKTCKS_TO_MSEC(X) \
+    (ERTS_TIME_ASSERT((X) >= 0),		\
+     ERTS_CLKTCKS_TO_MSEC__((X)))
+
 #endif /* ERL_TIME_H__ */
+
+/* timer-wheel api */
+#if defined(ERTS_WANT_TIMER_WHEEL_API) && !defined(ERTS_GOT_TIMER_WHEEL_API)
+#define ERTS_GOT_TIMER_WHEEL_API
+
+#include "erl_thr_progress.h"
+#include "erl_process.h"
+
+void erts_sched_init_time_sup(ErtsSchedulerData *esdp);
+
+
+#define ERTS_TWHEEL_SLOT_AT_ONCE -1
+#define ERTS_TWHEEL_SLOT_INACTIVE -2
+
+/*
+** Timer entry:
+*/
+typedef struct erl_timer {
+    struct erl_timer* next;	/* next entry tiw slot or chain */
+    struct erl_timer* prev;	/* prev entry tiw slot or chain */
+    union {
+	struct {
+	    void (*timeout)(void*); /* called when timeout */
+	    void (*cancel)(void*);  /* called when cancel (may be NULL) */
+	    void* arg;              /* argument to timeout/cancel procs */
+	} func;
+	ErtsThrPrgrLaterOp cleanup;
+    } u;
+    ErtsMonotonicTime timeout_pos; /* Timeout in absolute clock ticks */
+    int slot;
+} ErtsTWheelTimer;
+
+typedef void (*ErlTimeoutProc)(void*);
+typedef void (*ErlCancelProc)(void*);
+
+void erts_twheel_set_timer(ErtsTimerWheel *tiw,
+			   ErtsTWheelTimer *p, ErlTimeoutProc timeout,
+			   ErlCancelProc cancel, void *arg,
+			   ErtsMonotonicTime timeout_pos);
+void erts_twheel_cancel_timer(ErtsTimerWheel *tiw, ErtsTWheelTimer *p);
+ErtsTimerWheel *erts_create_timer_wheel(ErtsSchedulerData *esdp);
+
+ErtsMonotonicTime erts_check_next_timeout_time(ErtsSchedulerData *);
+
+ERTS_GLB_INLINE void erts_twheel_init_timer(ErtsTWheelTimer *p);
+ERTS_GLB_INLINE ErtsMonotonicTime erts_next_timeout_time(ErtsNextTimeoutRef);
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE void erts_twheel_init_timer(ErtsTWheelTimer *p)
+{
+    p->slot = ERTS_TWHEEL_SLOT_INACTIVE;
+}
+
+ERTS_GLB_INLINE ErtsMonotonicTime erts_next_timeout_time(ErtsNextTimeoutRef nxt_tmo_ref)
+{
+    return *((ErtsMonotonicTime *) nxt_tmo_ref);
+}
+
+#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
+
+#endif /* timer wheel api */
diff --git a/erts/emulator/beam/erl_time_sup.c b/erts/emulator/beam/erl_time_sup.c
index 3272a5326d..e550c999b8 100644
--- a/erts/emulator/beam/erl_time_sup.c
+++ b/erts/emulator/beam/erl_time_sup.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 1999-2012. All Rights Reserved.
+ * Copyright Ericsson AB 1999-2015. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -18,60 +18,10 @@
  */
 
 /*
-** Support routines for the timer wheel
-**
-** This code contains two strategies for dealing with 
-** date/time changes in the system. 
-** If the system has some kind of high resolution timer (HAVE_GETHRTIME),
-** the high resolution timer is used to correct the time-of-day and the
-** timeouts, the base source is the hrtimer, but at certain intervals the 
-** OS time-of-day is checked and if it is not within certain bounds, the 
-** delivered time gets slowly adjusted for each call until
-** it corresponds to the system time (built-in adjtime...). 
-** The call gethrtime() is detected by autoconf on Unix, but other 
-** platforms may define it in erl_*_sys.h and implement 
-** their own high resolution timer. The high resolution timer
-** strategy is (probably) best on all systems where the timer have 
-** a resolution higher or equal to gettimeofday (or what's implemented
-** is sys_gettimeofday()). The actual resolution is the interesting thing,
-** not the unit's thats used (i.e. on VxWorks, nanoseconds can be
-** retrieved in terms of units, but the actual resolution is the same as 
-** for the clock ticks).
-** If the systems best timer routine is kernel ticks returned from 
-** sys_times(), and the actual resolution of sys_gettimeofday() is
-** better (like most unixes that does not have any realtime extensions), 
-** another strategy is used. The tolerant gettimeofday() corrects 
-** the value with respect to uptime (sys_times() return value) and checks 
-** for correction both when delivering timeticks and delivering nowtime.
-** this strategy is slower, but accurate on systems without better timer 
-** routines. The kernel tick resolution is not enough to implement
-** a gethrtime routine. On Linux and other non solaris unix-boxes the second 
-** strategy is used, on all other platforms we use the first.
-** 
-** The following is expected (from sys.[ch] and erl_*_sys.h):
-**
-** 64 bit integers. So it is, and so it will be.
-**
-** sys_init_time(), will return the clock resolution in MS and
-** that's about it. More could be added of course
-** If the clock-rate is constant (i.e. 1 ms) one can define 
-** SYS_CLOCK_RESOLUTION (to 1),
-** which makes erts_deliver_time/erts_time_remaining a bit faster.
-**
-** if HAVE_GETHRTIME is defined:
-**    sys_gethrtime() will return a SysHrTime (long long) representing 
-**    nanoseconds, sys_init_hrtime() will do any initialization.
-** else
-**    a long (64bit) integer type called Sint64 should be defined.
-**
-** sys_times() will return clock_ticks since start and 
-**    fill in a SysTimes structure (struct tms). Instead of CLK_TCK, 
-**    SYS_CLK_TCK is used to determine the resolution of kernel ticks.
-**
-** sys_gettimeofday() will take a SysTimeval (a struct timeval) as parameter
-**    and fill it in as gettimeofday(X,NULL).
-**
-*/
+ * Support routines for the time
+ */
+
+/* #define ERTS_TIME_CORRECTION_PRINT */
 
 #ifdef HAVE_CONFIG_H
 #  include "config.h"
@@ -80,384 +30,1259 @@
 #include "sys.h"
 #include "erl_vm.h"
 #include "global.h"
-
+#define ERTS_WANT_TIMER_WHEEL_API
+#include "erl_time.h"
+ 
 static erts_smp_mtx_t erts_timeofday_mtx;
-
-static SysTimeval inittv; /* Used everywhere, the initial time-of-day */
+static erts_smp_mtx_t erts_get_time_mtx;
 
 static SysTimes t_start; /* Used in elapsed_time_both */
-static SysTimeval gtv; /* Used in wall_clock_elapsed_time_both */
-static SysTimeval then; /* Used in get_now */
-static SysTimeval last_emu_time; /* Used in erts_get_emu_time() */
-SysTimeval erts_first_emu_time; /* Used in erts_get_emu_time() */
+static ErtsMonotonicTime prev_wall_clock_elapsed; /* Used in wall_clock_elapsed_time_both */
+static ErtsMonotonicTime previous_now; /* Used in get_now */
+
+static ErtsMonitor *time_offset_monitors = NULL;
+static Uint no_time_offset_monitors = 0;
+
+#ifdef DEBUG
+static int time_sup_initialized = 0;
+#endif
 
-union {
-    erts_smp_atomic_t time;
-    char align[ERTS_CACHE_LINE_SIZE];
-} approx erts_align_attribute(ERTS_CACHE_LINE_SIZE);
+#define ERTS_MONOTONIC_TIME_KILO \
+    ((ErtsMonotonicTime) 1000)
+#define ERTS_MONOTONIC_TIME_MEGA \
+    (ERTS_MONOTONIC_TIME_KILO*ERTS_MONOTONIC_TIME_KILO)
+#define ERTS_MONOTONIC_TIME_GIGA \
+    (ERTS_MONOTONIC_TIME_MEGA*ERTS_MONOTONIC_TIME_KILO)
+#define ERTS_MONOTONIC_TIME_TERA \
+    (ERTS_MONOTONIC_TIME_GIGA*ERTS_MONOTONIC_TIME_KILO)
 
 static void
-init_approx_time(void)
+schedule_send_time_offset_changed_notifications(ErtsMonotonicTime new_offset);
+
+struct time_sup_read_only__ {
+    ErtsMonotonicTime (*get_time)(void);
+    int correction;
+    ErtsTimeWarpMode warp_mode;
+#ifdef ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT
+    ErtsMonotonicTime moffset;
+    int os_corrected_monotonic_time;
+    int os_monotonic_time_disable;
+    char *os_monotonic_time_func;
+    char *os_monotonic_time_clock_id;
+    int os_monotonic_time_locked;
+    Uint64 os_monotonic_time_resolution;
+    Uint64 os_monotonic_time_extended;
+#endif
+    char *os_system_time_func;
+    char *os_system_time_clock_id;
+    int os_system_time_locked;
+    Uint64 os_system_time_resolution;
+    Uint64 os_system_time_extended;
+    struct {
+	ErtsMonotonicTime large_diff;
+	ErtsMonotonicTime small_diff;
+    } adj;
+    struct {
+	ErtsMonotonicTime error;
+	ErtsMonotonicTime resolution;
+	int intervals;
+	int use_avg;
+    } drift_adj;
+};
+
+typedef struct {
+    ErtsMonotonicTime drift; /* Correction for os monotonic drift */
+    ErtsMonotonicTime error; /* Correction for error between system times */
+} ErtsMonotonicCorrection;
+
+typedef struct {
+    ErtsMonotonicTime erl_mtime;
+    ErtsMonotonicTime os_mtime;
+    ErtsMonotonicCorrection correction;
+} ErtsMonotonicCorrectionInstance;
+
+#define ERTS_MAX_DRIFT_INTERVALS 50
+typedef struct {
+    struct {
+	struct {
+	    ErtsMonotonicTime sys;
+	    ErtsMonotonicTime mon;
+	} diff;
+	struct {
+	    ErtsMonotonicTime sys;
+	    ErtsMonotonicTime mon;
+	} time;
+    } intervals[ERTS_MAX_DRIFT_INTERVALS];
+    struct {
+	ErtsMonotonicTime sys;
+	ErtsMonotonicTime mon;
+    } acc;
+    int ix;
+    int dirty_counter;
+} ErtsMonotonicDriftData;
+
+typedef struct {
+    ErtsMonotonicCorrectionInstance prev;
+    ErtsMonotonicCorrectionInstance curr;    
+    ErtsMonotonicDriftData drift;
+    ErtsMonotonicTime last_check;
+    int short_check_interval;
+} ErtsMonotonicCorrectionData;
+
+struct time_sup_infrequently_changed__ {
+#ifdef ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT
+    struct {
+	erts_smp_rwmtx_t rwmtx;
+	ErtsTWheelTimer timer;
+	ErtsMonotonicCorrectionData cdata;
+    } parmon;
+    ErtsMonotonicTime minit;
+#endif
+    ErtsSystemTime sinit;
+    ErtsMonotonicTime not_corrected_moffset;
+    erts_smp_atomic64_t offset;
+    ErtsMonotonicTime shadow_offset;
+    erts_smp_atomic32_t preliminary_offset;
+};
+
+struct time_sup_frequently_changed__ {
+    ErtsMonotonicTime last_not_corrected_time;
+};
+
+static struct {
+    union {
+	struct time_sup_read_only__ o;
+	char align__[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(struct time_sup_read_only__))];
+    } r;
+    union {
+	struct time_sup_infrequently_changed__ c;
+	char align__[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(struct time_sup_infrequently_changed__))];
+    } inf;
+    union {
+	struct time_sup_frequently_changed__ c;
+	char align__[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(struct time_sup_frequently_changed__))];
+    } f;
+} time_sup erts_align_attribute(ERTS_CACHE_LINE_SIZE);
+
+ErtsTimeSupData erts_time_sup__ erts_align_attribute(ERTS_CACHE_LINE_SIZE);
+
+/*
+ * erts_get_approx_time() returns an *approximate* time
+ * in seconds. NOTE that this time may jump backwards!!!
+ */
+erts_approx_time_t
+erts_get_approx_time(void)
 {
-    erts_smp_atomic_init_nob(&approx.time, 0);
+    ErtsSystemTime stime = erts_os_system_time();
+    return (erts_approx_time_t) ERTS_MONOTONIC_TO_SEC(stime);
 }
 
-static ERTS_INLINE erts_approx_time_t
-get_approx_time(void)
+static ERTS_INLINE void
+init_time_offset(ErtsMonotonicTime offset)
 {
-    return (erts_approx_time_t) erts_smp_atomic_read_nob(&approx.time);
+    erts_smp_atomic64_init_nob(&time_sup.inf.c.offset, (erts_aint64_t) offset);
 }
 
 static ERTS_INLINE void
-update_approx_time(SysTimeval *tv)
+set_time_offset(ErtsMonotonicTime offset)
+{
+    erts_smp_atomic64_set_relb(&time_sup.inf.c.offset, (erts_aint64_t) offset);
+}
+
+static ERTS_INLINE ErtsMonotonicTime
+get_time_offset(void)
 {
-    erts_approx_time_t new_secs = (erts_approx_time_t) tv->tv_sec;
-    erts_approx_time_t old_secs = get_approx_time();
-    if (old_secs != new_secs)
-	erts_smp_atomic_set_nob(&approx.time, new_secs);
+    return (ErtsMonotonicTime) erts_smp_atomic64_read_acqb(&time_sup.inf.c.offset);
 }
 
+static ERTS_INLINE void
+update_last_mtime(ErtsSchedulerData *esdp, ErtsMonotonicTime mtime)
+{
+    if (!esdp)
+	esdp = erts_get_scheduler_data();
+    if (esdp) {
+	ASSERT(mtime >= esdp->last_monotonic_time);
+	esdp->last_monotonic_time = mtime;
+	esdp->check_time_reds = 0;
+    }
+}
+
+#ifdef ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT
+
 /*
- * erts_get_approx_time() returns an *approximate* time
- * in seconds. NOTE that this time may jump backwards!!!
+ * Time correction adjustments made due to
+ * error between Erlang system time and OS
+ * system time:
+ * - Large adjustment ~1%
+ * - Small adjustment ~0.05%
  */
-erts_approx_time_t
-erts_get_approx_time(void)
+#define ERTS_TCORR_ERR_UNIT 2048
+#define ERTS_TCORR_ERR_LARGE_ADJ 20
+#define ERTS_TCORR_ERR_SMALL_ADJ 1
+
+#define ERTS_INIT_SHORT_INTERVAL_COUNTER 10
+#define ERTS_LONG_TIME_CORRECTION_CHECK ERTS_SEC_TO_MONOTONIC(60)
+#define ERTS_SHORT_TIME_CORRECTION_CHECK ERTS_SEC_TO_MONOTONIC(15)
+
+#define ERTS_TIME_DRIFT_MAX_ADJ_DIFF ERTS_USEC_TO_MONOTONIC(50)
+#define ERTS_TIME_DRIFT_MIN_ADJ_DIFF ERTS_USEC_TO_MONOTONIC(5)
+
+/*
+ * Maximum drift of the OS monotonic clock expected.
+ *
+ * We use 1 milli second per second. If the monotonic
+ * clock drifts more than this we will fail to adjust for
+ * drift, and error correction will kick in instead.
+ * If it is larger than this, one could argue that the
+ * primitive is to poor to be used...
+ */
+#define ERTS_MAX_MONOTONIC_DRIFT ERTS_MSEC_TO_MONOTONIC(1)
+
+/*
+ * We assume that precision is 32 times worse than the
+ * resolution. This is a wild guess, but there are no
+ * practical way to determine actual precision.
+ */
+#define ERTS_ASSUMED_PRECISION_DROP 32
+
+#define ERTS_MIN_MONOTONIC_DRIFT_MEASUREMENT \
+    (ERTS_SHORT_TIME_CORRECTION_CHECK - 2*ERTS_MAX_MONOTONIC_DRIFT)
+
+
+static ERTS_INLINE ErtsMonotonicTime
+calc_corrected_erl_mtime(ErtsMonotonicTime os_mtime,
+			 ErtsMonotonicCorrectionInstance *cip,
+			 ErtsMonotonicTime *os_mdiff_p,
+			 int os_drift_corrected)
 {
-    return get_approx_time();
+    ErtsMonotonicTime erl_mtime, diff = os_mtime - cip->os_mtime;
+    ERTS_TIME_ASSERT(diff >= 0);
+    if (!os_drift_corrected)
+	diff += (cip->correction.drift*diff)/ERTS_MONOTONIC_TIME_UNIT;
+    erl_mtime = cip->erl_mtime;
+    erl_mtime += diff;
+    erl_mtime += cip->correction.error*(diff/ERTS_TCORR_ERR_UNIT);
+    if (os_mdiff_p)
+	*os_mdiff_p = diff;
+    return erl_mtime;
 }
 
-#ifdef HAVE_GETHRTIME
+static ERTS_INLINE ErtsMonotonicTime
+read_corrected_time(int os_drift_corrected)
+{
+    ErtsMonotonicTime os_mtime;
+    ErtsMonotonicCorrectionData cdata;
+    ErtsMonotonicCorrectionInstance *cip;
 
-int erts_disable_tolerant_timeofday;
+    erts_smp_rwmtx_rlock(&time_sup.inf.c.parmon.rwmtx);
 
-static SysHrTime hr_init_time, hr_last_correction_check, 
-    hr_correction, hr_last_time;
+    os_mtime = erts_os_monotonic_time();
 
-static void init_tolerant_timeofday(void)
-{
-    /* Should be in sys.c */
-#if defined(HAVE_SYSCONF) && defined(_SC_NPROCESSORS_CONF)
-    if (sysconf(_SC_NPROCESSORS_CONF) > 1) {
-	char b[1024];
-	int maj,min,build;
-	os_flavor(b,1024);
-	os_version(&maj,&min,&build);
-	if (!strcmp(b,"sunos") && maj <= 5 && min <= 7) {
-	    erts_disable_tolerant_timeofday = 1;
-	}
+    cdata = time_sup.inf.c.parmon.cdata;
+
+    erts_smp_rwmtx_runlock(&time_sup.inf.c.parmon.rwmtx);
+
+    if (os_mtime >= cdata.curr.os_mtime)
+	cip = &cdata.curr;
+    else {
+	if (os_mtime < cdata.prev.os_mtime)
+	    erl_exit(ERTS_ABORT_EXIT,
+		     "OS monotonic time stepped backwards\n");
+	cip = &cdata.prev;
     }
-#endif
-    hr_init_time = sys_gethrtime();
-    hr_last_correction_check = hr_last_time = hr_init_time;
-    hr_correction = 0;
+
+    return calc_corrected_erl_mtime(os_mtime, cip, NULL,
+				    os_drift_corrected);
+}
+
+static ErtsMonotonicTime get_os_drift_corrected_time(void)
+{
+    return read_corrected_time(!0);
+}
+
+static ErtsMonotonicTime get_corrected_time(void)
+{
+    return read_corrected_time(0);
+}
+
+#ifdef ERTS_TIME_CORRECTION_PRINT
+
+static ERTS_INLINE void
+print_correction(int change,
+		 ErtsMonotonicTime sdiff,
+		 ErtsMonotonicTime old_ecorr,
+		 ErtsMonotonicTime old_dcorr,
+		 ErtsMonotonicTime new_ecorr,
+		 ErtsMonotonicTime new_dcorr,
+		 Uint tmo)
+{
+    ErtsMonotonicTime usec_sdiff;
+    if (sdiff < 0)
+	usec_sdiff = -1*ERTS_MONOTONIC_TO_USEC(-1*sdiff);
+    else
+	usec_sdiff = ERTS_MONOTONIC_TO_USEC(sdiff);
+
+    if (!change)
+	erts_fprintf(stderr,
+		     "sdiff = %b64d usec : [ec=%b64d ppm, dc=%b64d ppb] : "
+		     "tmo = %bpu msec\r\n",
+		     usec_sdiff,
+		     (1000000*old_ecorr) / ERTS_TCORR_ERR_UNIT,
+		     (1000000000*old_dcorr) / ERTS_MONOTONIC_TIME_UNIT,
+		     tmo);
+    else
+	erts_fprintf(stderr,
+		     "sdiff = %b64d usec : [ec=%b64d ppm, dc=%b64d ppb] "
+		     "-> [ec=%b64d ppm, dc=%b64d ppb] : tmo = %bpu msec\r\n",
+		     usec_sdiff,
+		     (1000000*old_ecorr) / ERTS_TCORR_ERR_UNIT,
+		     (1000000000*old_dcorr) / ERTS_MONOTONIC_TIME_UNIT,
+		     (1000000*new_ecorr) / ERTS_TCORR_ERR_UNIT,
+		     (1000000000*new_dcorr) / ERTS_MONOTONIC_TIME_UNIT,
+		     tmo);
 }
 
-static void get_tolerant_timeofday(SysTimeval *tv)
+#endif
+
+static ERTS_INLINE ErtsMonotonicTime
+get_timeout_pos(ErtsMonotonicTime now, ErtsMonotonicTime tmo)
 {
-    SysHrTime diff_time, curr;
+    ErtsMonotonicTime tpos;
+    tpos = ERTS_MONOTONIC_TO_CLKTCKS(now - 1);
+    tpos += ERTS_MSEC_TO_CLKTCKS(tmo);
+    tpos += 1;
+    return tpos;
+}
 
-    if (erts_disable_tolerant_timeofday) {
-	sys_gettimeofday(tv);
-	return;
+static void
+check_time_correction(void *vesdp)
+{
+    int init_drift_adj = !vesdp;
+    ErtsSchedulerData *esdp = (ErtsSchedulerData *) vesdp;
+    ErtsMonotonicCorrectionData cdata;
+    ErtsMonotonicCorrection new_correction;
+    ErtsMonotonicCorrectionInstance *cip;
+    ErtsMonotonicTime mdiff, sdiff, os_mtime, erl_mtime, os_stime,
+	erl_stime, time_offset, timeout_pos;
+    Uint timeout;
+    int os_drift_corrected = time_sup.r.o.os_corrected_monotonic_time;
+    int set_new_correction = 0, begin_short_intervals = 0;
+
+    erts_smp_rwmtx_rlock(&time_sup.inf.c.parmon.rwmtx);
+
+    erts_os_times(&os_mtime, &os_stime);
+
+    cdata = time_sup.inf.c.parmon.cdata;
+
+    erts_smp_rwmtx_runlock(&time_sup.inf.c.parmon.rwmtx);
+
+    if (os_mtime < cdata.curr.os_mtime)
+	erl_exit(ERTS_ABORT_EXIT,
+		 "OS monotonic time stepped backwards\n");
+    cip = &cdata.curr;
+
+    erl_mtime = calc_corrected_erl_mtime(os_mtime, cip, &mdiff,
+					 os_drift_corrected);
+    time_offset = get_time_offset();
+    erl_stime = erl_mtime + time_offset;
+
+    sdiff = erl_stime - os_stime;
+
+    if (time_sup.inf.c.shadow_offset) {
+	ERTS_TIME_ASSERT(time_sup.r.o.warp_mode == ERTS_SINGLE_TIME_WARP_MODE);
+	if (erts_smp_atomic32_read_nob(&time_sup.inf.c.preliminary_offset))
+	    sdiff += time_sup.inf.c.shadow_offset;
+	else
+	    time_sup.inf.c.shadow_offset = 0;
     }
-    *tv = inittv;
-    diff_time = ((curr = sys_gethrtime()) + hr_correction - hr_init_time) / 1000; 
 
-    if (curr < hr_init_time) {
-	erl_exit(1,"Unexpected behaviour from operating system high "
-		 "resolution timer");
+    new_correction = cip->correction;
+
+    if (time_sup.r.o.warp_mode == ERTS_MULTI_TIME_WARP_MODE
+	&& (sdiff < -2*time_sup.r.o.adj.small_diff
+	    || 2*time_sup.r.o.adj.small_diff < sdiff)) {
+	/* System time diff exeeded limits; change time offset... */
+	time_offset -= sdiff;
+	sdiff = 0;
+	set_time_offset(time_offset);
+	schedule_send_time_offset_changed_notifications(time_offset);
+	begin_short_intervals = 1;
+	if (cdata.curr.correction.error != 0) {
+	    set_new_correction = 1;
+	    new_correction.error = 0;
+	}
+    }
+    else if ((time_sup.r.o.warp_mode == ERTS_SINGLE_TIME_WARP_MODE
+	      && erts_smp_atomic32_read_nob(&time_sup.inf.c.preliminary_offset))
+	     && (sdiff < -2*time_sup.r.o.adj.small_diff
+		 || 2*time_sup.r.o.adj.small_diff < sdiff)) {
+	/*
+	 * System time diff exeeded limits; change shadow offset
+	 * and let OS system time leap away from Erlang system
+	 * time.
+	 */
+	time_sup.inf.c.shadow_offset -= sdiff;
+	sdiff = 0;
+	begin_short_intervals = 1;
+	if (cdata.curr.correction.error != 0) {
+	    set_new_correction = 1;
+	    new_correction.error = 0;
+	}
+    }
+    else if (cdata.curr.correction.error == 0) {
+	if (sdiff < -time_sup.r.o.adj.small_diff) {
+	    set_new_correction = 1;
+	    if (sdiff < -time_sup.r.o.adj.large_diff)
+		new_correction.error = ERTS_TCORR_ERR_LARGE_ADJ;
+	    else
+		new_correction.error = ERTS_TCORR_ERR_SMALL_ADJ;
+	}
+	else if (sdiff > time_sup.r.o.adj.small_diff) {
+	    set_new_correction = 1;
+	    if (sdiff > time_sup.r.o.adj.large_diff)
+		new_correction.error = -ERTS_TCORR_ERR_LARGE_ADJ;
+	    else
+		new_correction.error = -ERTS_TCORR_ERR_SMALL_ADJ;
+	}
+    }
+    else if (cdata.curr.correction.error > 0) {
+	if (sdiff < 0) {
+	    if (cdata.curr.correction.error != ERTS_TCORR_ERR_LARGE_ADJ
+		&& sdiff < -time_sup.r.o.adj.large_diff) {
+		new_correction.error = ERTS_TCORR_ERR_LARGE_ADJ;
+		set_new_correction = 1;
+	    }
+	}
+	else if (sdiff > time_sup.r.o.adj.small_diff) {
+	    set_new_correction = 1;
+	    if (sdiff > time_sup.r.o.adj.large_diff)
+		new_correction.error = -ERTS_TCORR_ERR_LARGE_ADJ;
+	    else
+		new_correction.error = -ERTS_TCORR_ERR_SMALL_ADJ;
+	}
+	else {
+	    set_new_correction = 1;
+	    new_correction.error = 0;
+	}
+    }
+    else /* if (cdata.curr.correction.error < 0) */ { 
+	if (0 < sdiff) {
+	    if (cdata.curr.correction.error != -ERTS_TCORR_ERR_LARGE_ADJ
+		&& time_sup.r.o.adj.large_diff < sdiff) {
+		new_correction.error = -ERTS_TCORR_ERR_LARGE_ADJ;
+		set_new_correction = 1;
+	    }
+	}
+	else if (sdiff < -time_sup.r.o.adj.small_diff) {
+	    set_new_correction = 1;
+	    if (sdiff < -time_sup.r.o.adj.large_diff)
+		new_correction.error = ERTS_TCORR_ERR_LARGE_ADJ;
+	    else
+		new_correction.error = ERTS_TCORR_ERR_SMALL_ADJ;
+	}
+	else {
+	    set_new_correction = 1;
+	    new_correction.error = 0;
+	}
     }
 
-    if ((curr - hr_last_correction_check) / 1000 > 1000000) {
-	/* Check the correction need */
-	SysHrTime tv_diff, diffdiff;
-	SysTimeval tmp;
-	int done = 0;
-
-	sys_gettimeofday(&tmp);
-	tv_diff = ((SysHrTime) tmp.tv_sec) * 1000000 + tmp.tv_usec;
-	tv_diff -= ((SysHrTime) inittv.tv_sec) * 1000000 + inittv.tv_usec;
-	diffdiff = diff_time - tv_diff;
-	if (diffdiff > 10000) {
-	    SysHrTime corr = (curr - hr_last_time) / 100;
-	    if (corr / 1000 >= diffdiff) {
-		++done;
-		hr_correction -= ((SysHrTime)diffdiff) * 1000;
-	    } else {
-		hr_correction -= corr;
+    if (!os_drift_corrected) {
+	ErtsMonotonicDriftData *ddp = &time_sup.inf.c.parmon.cdata.drift;
+	int ix = ddp->ix;
+	ErtsMonotonicTime mtime_diff, old_os_mtime;
+
+	old_os_mtime = ddp->intervals[ix].time.mon;
+	mtime_diff = os_mtime - old_os_mtime;
+
+	if ((mtime_diff >= ERTS_MIN_MONOTONIC_DRIFT_MEASUREMENT)
+	    | init_drift_adj) {
+	    ErtsMonotonicTime drift_adj, drift_adj_diff, old_os_stime,
+		smtime_diff, stime_diff, mtime_acc, stime_acc,
+		avg_drift_adj, max_drift;
+
+	    old_os_stime = ddp->intervals[ix].time.sys;
+
+	    mtime_acc = ddp->acc.mon;
+	    stime_acc = ddp->acc.sys;
+
+	    avg_drift_adj = (((stime_acc - mtime_acc)
+			      * ERTS_MONOTONIC_TIME_UNIT)
+			     / mtime_acc);
+
+	    mtime_diff = os_mtime - old_os_mtime;
+	    stime_diff = os_stime - old_os_stime;
+	    smtime_diff = stime_diff - mtime_diff;
+	    ix++;
+	    if (ix >= time_sup.r.o.drift_adj.intervals)
+		ix = 0;
+	    mtime_acc -= ddp->intervals[ix].diff.mon;
+	    mtime_acc += mtime_diff;
+	    stime_acc -= ddp->intervals[ix].diff.sys;
+	    stime_acc += stime_diff;
+
+	    ddp->intervals[ix].diff.mon = mtime_diff;
+	    ddp->intervals[ix].diff.sys = stime_diff;
+	    ddp->intervals[ix].time.mon = os_mtime;
+	    ddp->intervals[ix].time.sys = os_stime;
+
+	    ddp->ix = ix;
+	    ddp->acc.mon = mtime_acc;
+	    ddp->acc.sys = stime_acc;
+
+	    max_drift = ERTS_MAX_MONOTONIC_DRIFT;
+	    max_drift *= ERTS_MONOTONIC_TO_SEC(mtime_diff);
+
+	    if (smtime_diff > time_sup.r.o.drift_adj.error + max_drift
+		|| smtime_diff < -1*time_sup.r.o.drift_adj.error - max_drift) {
+	    dirty_intervals:
+		/*
+		 * We had a leap in system time. Mark array as
+		 * dirty to ensure that dirty values are rotated
+		 * out before we use it again...
+		 */
+		ddp->dirty_counter = time_sup.r.o.drift_adj.intervals;
+		begin_short_intervals = 1;
 	    }
-	    diff_time = (curr + hr_correction - hr_init_time) / 1000; 
-	} else if (diffdiff < -10000) {
-	    SysHrTime corr = (curr - hr_last_time) / 100;
-	    if (corr / 1000 >= -diffdiff) {
-		++done;
-		hr_correction -= ((SysHrTime)diffdiff) * 1000;
-	    } else {
-		hr_correction += corr;
+	    else if (ddp->dirty_counter > 0) {
+		if (init_drift_adj) {
+		    new_correction.drift = ((smtime_diff
+					     * ERTS_MONOTONIC_TIME_UNIT)
+					    / mtime_diff);
+		    set_new_correction = 1;
+		}
+		ddp->dirty_counter--;
+	    }
+	    else {
+		if (ddp->dirty_counter == 0) {
+		    /* Force set new drift correction... */
+		    set_new_correction = 1;
+		    ddp->dirty_counter--;
+		}
+
+		if (time_sup.r.o.drift_adj.use_avg)
+		    drift_adj = (((stime_acc - mtime_acc)
+				  * ERTS_MONOTONIC_TIME_UNIT)
+				 / mtime_acc);
+		else
+		    drift_adj = ((smtime_diff
+				  * ERTS_MONOTONIC_TIME_UNIT)
+				 / mtime_diff);
+
+		drift_adj_diff = avg_drift_adj - drift_adj;
+		if (drift_adj_diff < -ERTS_TIME_DRIFT_MAX_ADJ_DIFF
+		    || ERTS_TIME_DRIFT_MAX_ADJ_DIFF < drift_adj_diff)
+		    goto dirty_intervals;
+
+		drift_adj_diff = drift_adj - new_correction.drift;
+		if (drift_adj_diff) {
+		    if (drift_adj_diff > ERTS_TIME_DRIFT_MAX_ADJ_DIFF)
+			drift_adj_diff = ERTS_TIME_DRIFT_MAX_ADJ_DIFF;
+		    else if (drift_adj_diff < -ERTS_TIME_DRIFT_MAX_ADJ_DIFF)
+			drift_adj_diff = -ERTS_TIME_DRIFT_MAX_ADJ_DIFF;
+		    new_correction.drift += drift_adj_diff;
+		    if (drift_adj_diff < -ERTS_TIME_DRIFT_MIN_ADJ_DIFF
+			|| ERTS_TIME_DRIFT_MIN_ADJ_DIFF < drift_adj_diff) {
+			set_new_correction = 1;
+		    }
+		}
 	    }
-	    diff_time = (curr + hr_correction - hr_init_time) / 1000; 
-	} else {
-	    ++done;
 	}
-	if (done) {
-	    hr_last_correction_check = curr;
+    }
+
+    begin_short_intervals |= set_new_correction;
+    
+    if (begin_short_intervals) {
+	time_sup.inf.c.parmon.cdata.short_check_interval
+	    = ERTS_INIT_SHORT_INTERVAL_COUNTER;
+    }
+    else if ((os_mtime - time_sup.inf.c.parmon.cdata.last_check
+	      >= ERTS_SHORT_TIME_CORRECTION_CHECK - ERTS_MONOTONIC_TIME_UNIT)
+	     && time_sup.inf.c.parmon.cdata.short_check_interval > 0) {
+	time_sup.inf.c.parmon.cdata.short_check_interval--;
+    }
+    time_sup.inf.c.parmon.cdata.last_check = os_mtime;
+
+    if (new_correction.error == 0)
+	timeout = ERTS_MONOTONIC_TO_MSEC(ERTS_LONG_TIME_CORRECTION_CHECK);
+    else {
+	ErtsMonotonicTime ecorr = new_correction.error;
+	ErtsMonotonicTime abs_sdiff;
+	abs_sdiff = (sdiff < 0) ? -1*sdiff : sdiff;
+	if (ecorr < 0)
+	    ecorr = -1*ecorr;
+	if (abs_sdiff > ecorr*(ERTS_LONG_TIME_CORRECTION_CHECK/ERTS_TCORR_ERR_UNIT))
+	    timeout = ERTS_MONOTONIC_TO_MSEC(ERTS_LONG_TIME_CORRECTION_CHECK);
+	else {
+	    timeout = ERTS_MONOTONIC_TO_MSEC((ERTS_TCORR_ERR_UNIT*abs_sdiff)/ecorr);
+	    if (timeout < 10)
+		timeout = 10;
 	}
     }
-    tv->tv_sec += (int) (diff_time / ((SysHrTime) 1000000));
-    tv->tv_usec += (int) (diff_time % ((SysHrTime) 1000000));
-    if (tv->tv_usec >= 1000000) {
-	tv->tv_usec -= 1000000;
-	tv->tv_sec += 1;
+
+    if (timeout > ERTS_MONOTONIC_TO_MSEC(ERTS_SHORT_TIME_CORRECTION_CHECK)
+	&& (time_sup.inf.c.parmon.cdata.short_check_interval
+	    || time_sup.inf.c.parmon.cdata.drift.dirty_counter >= 0)) {
+	timeout = ERTS_MONOTONIC_TO_MSEC(ERTS_SHORT_TIME_CORRECTION_CHECK);
     }
-    hr_last_time = curr;
-}
 
-#define correction (hr_correction/1000000)
+    timeout_pos = get_timeout_pos(erl_mtime, timeout);
 
-#else /* !HAVE_GETHRTIME */
-#if !defined(CORRECT_USING_TIMES) 
-#define init_tolerant_timeofday() 
-#define get_tolerant_timeofday(tvp) sys_gettimeofday(tvp)
-#else
+#ifdef ERTS_TIME_CORRECTION_PRINT
+    print_correction(set_new_correction,
+		     sdiff,
+		     cip->correction.error,
+		     cip->correction.drift,
+		     new_correction.error,
+		     new_correction.drift,
+		     timeout);
+#endif
 
-typedef Sint64 Milli;
-
-static clock_t init_ct;
-static Sint64 ct_wrap;
-static Milli init_tv_m;
-static Milli correction_supress; 
-static Milli last_ct_diff;
-static Milli last_cc; 
-static clock_t last_ct;
-
-/* sys_times() might need to be wrapped and the values shifted (right)
-   a bit to cope with newer linux (2.5.*) kernels, this has to be taken care 
-   of dynamically to start with, a special version that uses
-   the times() return value as a high resolution timer can be made
-   to fully utilize the faster ticks, like on windows, but for now, we'll
-   settle with this silly workaround */
-#ifdef ERTS_WRAP_SYS_TIMES 
-#define KERNEL_TICKS() (sys_times_wrap() &  \
-			((1UL << ((sizeof(clock_t) * 8) - 1)) - 1)) 
-#else
-SysTimes dummy_tms;
+    if (set_new_correction) {
+	erts_smp_rwmtx_rwlock(&time_sup.inf.c.parmon.rwmtx);
 
-#define KERNEL_TICKS() (sys_times(&dummy_tms) &  \
-			((1UL << ((sizeof(clock_t) * 8) - 1)) - 1)) 
+	os_mtime = erts_os_monotonic_time();
 
-#endif
+	/* Save previous correction instance */
+	time_sup.inf.c.parmon.cdata.prev = *cip;
 
-static void init_tolerant_timeofday(void)
-{
-    last_ct = init_ct = KERNEL_TICKS();
-    last_cc = 0;
-    init_tv_m = (((Milli) inittv.tv_sec) * 1000) + 
-	(inittv.tv_usec / 1000);
-    ct_wrap = 0;
-    correction_supress = 0;
+	/*
+	 * Current correction instance begin when
+	 * OS monotonic time has increased two units.
+	 */
+	os_mtime += 2;
+
+	/*
+	 * Erlang monotonic time corresponding to
+	 * next OS monotonic time using previous
+	 * correction.
+	 */
+	erl_mtime = calc_corrected_erl_mtime(os_mtime, cip, NULL,
+					     os_drift_corrected);
+
+	/*
+	 * Save new current correction instance.
+	 */
+	time_sup.inf.c.parmon.cdata.curr.erl_mtime = erl_mtime;
+	time_sup.inf.c.parmon.cdata.curr.os_mtime = os_mtime;
+	time_sup.inf.c.parmon.cdata.curr.correction = new_correction;
+
+	erts_smp_rwmtx_rwunlock(&time_sup.inf.c.parmon.rwmtx);
+    }
+
+    if (!esdp)
+	esdp = erts_get_scheduler_data();
+
+    erts_twheel_set_timer(esdp->timer_wheel,
+			  &time_sup.inf.c.parmon.timer,
+			  check_time_correction,
+			  NULL,
+			  (void *) esdp,
+			  timeout_pos);
 }
 
+static ErtsMonotonicTime get_os_corrected_time(void)
+{
+    ASSERT(time_sup.r.o.warp_mode == ERTS_MULTI_TIME_WARP_MODE);
+    return erts_os_monotonic_time() + time_sup.r.o.moffset;
+}
 
-static void get_tolerant_timeofday(SysTimeval *tvp)
+static void
+check_time_offset(void *vesdp)
 {
-    clock_t current_ct;
-    SysTimeval current_tv;
-    Milli ct_diff;
-    Milli tv_diff;
-    Milli current_correction;
-    Milli act_correction;	/* long shown to be too small */
-    Milli max_adjust;
-
-    if (erts_disable_tolerant_timeofday) {
-	sys_gettimeofday(tvp);
-	return;
-    }
+    ErtsSchedulerData *esdp = (ErtsSchedulerData *) vesdp;
+    ErtsMonotonicTime sdiff, os_mtime, erl_mtime, os_stime,
+	erl_stime, time_offset, timeout, timeout_pos;
 
-#ifdef ERTS_WRAP_SYS_TIMES 
-#define TICK_MS (1000 / SYS_CLK_TCK_WRAP)
-#else
-#define TICK_MS (1000 / SYS_CLK_TCK)
+    ASSERT(time_sup.r.o.warp_mode == ERTS_MULTI_TIME_WARP_MODE);
+
+    erts_os_times(&os_mtime, &os_stime);
+
+    erl_mtime =  os_mtime + time_sup.r.o.moffset;
+    time_offset = get_time_offset();
+    erl_stime = erl_mtime + time_offset;
+
+    sdiff = erl_stime - os_stime;
+
+    if ((sdiff < -2*time_sup.r.o.adj.small_diff
+	 || 2*time_sup.r.o.adj.small_diff < sdiff)) {
+	/* System time diff exeeded limits; change time offset... */
+#ifdef ERTS_TIME_CORRECTION_PRINT
+	erts_fprintf(stderr, "sdiff = %b64d nsec -> 0 nsec\n",
+		     ERTS_MONOTONIC_TO_NSEC(sdiff));
 #endif
-    current_ct = KERNEL_TICKS();
-    sys_gettimeofday(&current_tv);
-
-    /* I dont know if uptime can move some units backwards
-       on some systems, but I allow for small backward 
-       jumps to avoid such problems if they exist...*/
-    if (last_ct > 100 && current_ct < (last_ct - 100)) {
-	ct_wrap += ((Sint64) 1) << ((sizeof(clock_t) * 8) - 1);
+	time_offset -= sdiff;
+	sdiff = 0;
+	set_time_offset(time_offset);
+	schedule_send_time_offset_changed_notifications(time_offset);
     }
-    last_ct = current_ct;
-    ct_diff = ((ct_wrap + current_ct) - init_ct) * TICK_MS;
+#ifdef ERTS_TIME_CORRECTION_PRINT
+    else erts_fprintf(stderr, "sdiff = %b64d nsec\n",
+		      ERTS_MONOTONIC_TO_NSEC(sdiff));
+#endif
 
-    /*
-     * We will adjust the time in milliseconds and we allow for 1% 
-     * adjustments, but if this function is called more often then every 100 
-     * millisecond (which is obviously possible), we will never adjust, so 
-     * we accumulate small times by setting last_ct_diff iff max_adjust > 0
-     */
-    if ((max_adjust = (ct_diff - last_ct_diff)/100) > 0)
-	last_ct_diff = ct_diff;
+    timeout = ERTS_MONOTONIC_TO_MSEC(ERTS_LONG_TIME_CORRECTION_CHECK);
+    timeout_pos = get_timeout_pos(erl_mtime, timeout);
 
-    tv_diff = ((((Milli) current_tv.tv_sec) * 1000) + 
-	       (current_tv.tv_usec / 1000)) - init_tv_m;
+    erts_twheel_set_timer(esdp->timer_wheel,
+			  &time_sup.inf.c.parmon.timer,
+			  check_time_offset,
+			  NULL,
+			  vesdp,
+			  timeout_pos);
+}
 
-    current_correction = ((ct_diff - tv_diff) / TICK_MS) * TICK_MS; /* trunc */
+static void
+init_check_time_correction(void *vesdp)
+{
+    ErtsMonotonicDriftData *ddp;
+    ErtsMonotonicTime old_mtime, old_stime, mtime, stime, mtime_diff,
+	stime_diff, smtime_diff, max_drift;
+    int ix;
 
-    /* 
-     * We allow the current_correction value to wobble a little, as it
-     * suffers from the low resolution of the kernel ticks. 
-     * if it hasn't changed more than one tick in either direction, 
-     * we will keep the old value.
-     */
-    if ((last_cc > current_correction + TICK_MS) ||
-	(last_cc < current_correction - TICK_MS)) {
-	last_cc = current_correction;
-    } else {
-	current_correction = last_cc;
+    ddp = &time_sup.inf.c.parmon.cdata.drift;
+    ix = ddp->ix;
+    old_mtime = ddp->intervals[0].time.mon;
+    old_stime = ddp->intervals[0].time.sys;
+
+    erts_os_times(&mtime, &stime);
+
+    mtime_diff = mtime - old_mtime;
+    stime_diff = stime - old_stime;
+    smtime_diff = stime_diff - mtime_diff;
+
+    max_drift = ERTS_MAX_MONOTONIC_DRIFT;
+    max_drift *= ERTS_MONOTONIC_TO_SEC(mtime_diff);
+
+    if (smtime_diff > time_sup.r.o.drift_adj.error + max_drift
+	|| smtime_diff < -1*time_sup.r.o.drift_adj.error - max_drift) {
+	/* Had a system time leap... pretend no drift... */
+	stime_diff = mtime_diff;
     }
     
     /*
-     * As time goes, we try to get the actual correction to 0, 
-     * that is, make erlangs time correspond to the systems dito.
-     * The act correction is what we seem to need (current_correction)
-     * minus the correction suppression. The correction supression
-     * will change slowly (max 1% of elapsed time) but in millisecond steps.
+     * We use old time values in order to trigger
+     * a drift adjustment, and repeat this interval
+     * in all slots...
      */
-    act_correction = current_correction - correction_supress;
-    if (max_adjust > 0) {
-	/*
-	 * Here we slowly adjust erlangs time to correspond with the 
-	 * system time by changing the correction_supress variable.
-	 * It can change max_adjust milliseconds which is 1% of elapsed time
-	 */
-	if (act_correction > 0) {
-	    if (current_correction - correction_supress > max_adjust) {
-		correction_supress += max_adjust;
-	    } else {
-		correction_supress = current_correction;
-	    }
-	    act_correction = current_correction - correction_supress;
-	} else if (act_correction < 0) {
-	    if (correction_supress - current_correction > max_adjust) {
-		correction_supress -= max_adjust;
-	    } else {
-		correction_supress = current_correction;
+    for (ix = 0; ix < time_sup.r.o.drift_adj.intervals; ix++) {
+	ddp->intervals[ix].diff.mon = mtime_diff;
+	ddp->intervals[ix].diff.sys = stime_diff;
+	ddp->intervals[ix].time.mon = old_mtime;
+	ddp->intervals[ix].time.sys = old_stime;
+    }
+
+    ddp->acc.sys = stime_diff*time_sup.r.o.drift_adj.intervals;
+    ddp->acc.mon = mtime_diff*time_sup.r.o.drift_adj.intervals;
+    ddp->ix = 0;
+    ddp->dirty_counter = time_sup.r.o.drift_adj.intervals;
+
+    check_time_correction(vesdp);
+}
+
+static ErtsMonotonicTime
+finalize_corrected_time_offset(ErtsSystemTime *stimep)
+{
+    ErtsMonotonicTime os_mtime;
+    ErtsMonotonicCorrectionData cdata;
+    ErtsMonotonicCorrectionInstance *cip;
+    int os_drift_corrected = time_sup.r.o.os_corrected_monotonic_time;
+
+    erts_smp_rwmtx_rlock(&time_sup.inf.c.parmon.rwmtx);
+
+    erts_os_times(&os_mtime, stimep);
+
+    cdata = time_sup.inf.c.parmon.cdata;
+
+    erts_smp_rwmtx_runlock(&time_sup.inf.c.parmon.rwmtx);
+
+    if (os_mtime < cdata.curr.os_mtime)
+	erl_exit(ERTS_ABORT_EXIT,
+		 "OS monotonic time stepped backwards\n");
+    cip = &cdata.curr;
+
+    return calc_corrected_erl_mtime(os_mtime, cip, NULL,
+				    os_drift_corrected);
+}
+
+static void
+late_init_time_correction(ErtsSchedulerData *esdp)
+{
+    int quick_init_drift_adj;
+    void (*check_func)(void *);
+    ErtsMonotonicTime timeout, timeout_pos;
+
+    quick_init_drift_adj =
+	ERTS_MONOTONIC_TO_USEC(time_sup.r.o.drift_adj.error) == 0;
+
+    if (quick_init_drift_adj)
+	timeout = ERTS_MONOTONIC_TO_MSEC(ERTS_SHORT_TIME_CORRECTION_CHECK/10);
+    else
+	timeout = ERTS_MONOTONIC_TO_MSEC(ERTS_SHORT_TIME_CORRECTION_CHECK);
+
+    if (!time_sup.r.o.os_corrected_monotonic_time)
+	check_func = init_check_time_correction;
+    else if (time_sup.r.o.get_time == get_os_corrected_time) {
+	quick_init_drift_adj = 0;
+	check_func = check_time_offset;
+    }
+    else
+	check_func = check_time_correction;
+
+    timeout_pos = get_timeout_pos(erts_get_monotonic_time(esdp),
+				  timeout);
+
+    erts_twheel_init_timer(&time_sup.inf.c.parmon.timer);
+    erts_twheel_set_timer(esdp->timer_wheel,
+			  &time_sup.inf.c.parmon.timer,
+			  check_func,
+			  NULL,
+			  (quick_init_drift_adj
+			   ? NULL
+			   : esdp),
+			  timeout_pos);
+}
+
+#endif /* ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT */
+
+static ErtsMonotonicTime get_not_corrected_time(void)
+{
+    ErtsMonotonicTime stime, mtime;
+
+    erts_smp_mtx_lock(&erts_get_time_mtx);
+
+    stime = erts_os_system_time();
+
+    mtime = stime - time_sup.inf.c.not_corrected_moffset;
+
+    if (mtime >= time_sup.f.c.last_not_corrected_time)
+	time_sup.f.c.last_not_corrected_time = mtime;
+    else {
+	mtime = time_sup.f.c.last_not_corrected_time;
+
+	if (time_sup.r.o.warp_mode == ERTS_MULTI_TIME_WARP_MODE) {
+	    ErtsMonotonicTime new_offset = stime - mtime;
+	    new_offset = ERTS_MONOTONIC_TO_USEC(new_offset);
+	    new_offset = ERTS_USEC_TO_MONOTONIC(new_offset);
+	    if (time_sup.inf.c.not_corrected_moffset != new_offset) {
+		time_sup.inf.c.not_corrected_moffset = new_offset;
+		set_time_offset(new_offset);
+		schedule_send_time_offset_changed_notifications(new_offset);
 	    }
-	    act_correction = current_correction - correction_supress;
 	}
+
     }
-    /*
-     * The actual correction will correct the timeval so that system 
-     * time warps gets smothed down.
-     */
-    current_tv.tv_sec += act_correction / 1000;
-    current_tv.tv_usec += (act_correction % 1000) * 1000;
-
-    if (current_tv.tv_usec >= 1000000) {
-	++current_tv.tv_sec ;
-	current_tv.tv_usec -= 1000000;
-    } else if (current_tv.tv_usec < 0) {
-	--current_tv.tv_sec;
-	current_tv.tv_usec += 1000000;
-    }
-    *tvp = current_tv;
-#undef TICK_MS
+
+    ASSERT(stime == mtime + time_sup.inf.c.not_corrected_moffset);
+
+    erts_smp_mtx_unlock(&erts_get_time_mtx);
+
+    return mtime;
 }
 
-#endif /* CORRECT_USING_TIMES */
-#endif /* !HAVE_GETHRTIME */
+int erts_check_time_adj_support(int time_correction,
+				ErtsTimeWarpMode time_warp_mode)
+{
+    if (!time_correction)
+	return 1;
 
-/*
-** Why this? Well, most platforms have a constant clock resolution of 1,
-** we dont want the deliver_time/time_remaining routines to waste 
-** time dividing and multiplying by/with a variable that's always one.
-** so the return value of sys_init_time is ignored on those platforms.
-*/
- 
-#ifndef SYS_CLOCK_RESOLUTION
-static int clock_resolution;
-#define CLOCK_RESOLUTION clock_resolution
+    /* User wants time correction */
+
+#ifdef ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT
+    return !time_sup.r.o.os_monotonic_time_disable;
 #else
-#define CLOCK_RESOLUTION SYS_CLOCK_RESOLUTION
+    return 0;
 #endif
+}
 
-/*
-** The clock resolution should really be the resolution of the 
-** time function in use, which on most platforms 
-** is 1. On VxWorks the resolution should be
-** the number of ticks per second (or 1, which would work nicely to).
-**
-** Setting lower resolutions is mostly interesting when timers are used
-** instead of something like select.
-*/
-
-static SysTimeval last_delivered; 
-
-static void init_erts_deliver_time(const SysTimeval *inittv)
+int
+erts_has_time_correction(void)
 {
-    /* We set the initial values for deliver_time here */
-    last_delivered = *inittv;
-    last_delivered.tv_usec = 1000 * (last_delivered.tv_usec / 1000); 
-                                                   /* ms resolution */
+    return time_sup.r.o.correction;
 }
 
-static void do_erts_deliver_time(const SysTimeval *current)
+void erts_init_sys_time_sup(void)
 {
-    SysTimeval cur_time;
-    erts_time_t elapsed;
-    
-    /* calculate and deliver appropriate number of ticks */
-    cur_time = *current;
-    cur_time.tv_usec = 1000 * (cur_time.tv_usec / 1000); /* ms resolution */
-    elapsed = (1000 * (cur_time.tv_sec - last_delivered.tv_sec) +
-	       (cur_time.tv_usec - last_delivered.tv_usec) / 1000) / 
-	CLOCK_RESOLUTION;
+    ErtsSysInitTimeResult sys_init_time_res
+	= ERTS_SYS_INIT_TIME_RESULT_INITER;
 
-    /* Sometimes the time jump backwards,
-       resulting in a negative elapsed time. We compensate for
-       this by simply pretend as if the time stood still. :) */
+    sys_init_time(&sys_init_time_res);
 
-    if (elapsed > 0) {
+    erts_time_sup__.r.o.monotonic_time_unit
+	= sys_init_time_res.os_monotonic_time_unit;
 
-	ASSERT(elapsed < ((erts_time_t) ERTS_SHORT_TIME_T_MAX));
+#ifndef SYS_CLOCK_RESOLUTION
+    erts_time_sup__.r.o.clktck_resolution
+	= sys_init_time_res.sys_clock_resolution;
+    erts_time_sup__.r.o.clktck_resolution *= 1000;
+#endif
 
-	erts_do_time_add((erts_short_time_t) elapsed);
-	last_delivered = cur_time;
-    }
+#ifdef ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT
+    time_sup.r.o.os_monotonic_time_disable
+	= !sys_init_time_res.have_os_monotonic_time;
+    time_sup.r.o.os_corrected_monotonic_time =
+	sys_init_time_res.have_corrected_os_monotonic_time;
+    time_sup.r.o.os_monotonic_time_func
+	= sys_init_time_res.os_monotonic_time_info.func;
+    time_sup.r.o.os_monotonic_time_clock_id
+	= sys_init_time_res.os_monotonic_time_info.clock_id;
+    time_sup.r.o.os_monotonic_time_locked
+	= sys_init_time_res.os_monotonic_time_info.locked_use;
+    time_sup.r.o.os_monotonic_time_resolution
+	= sys_init_time_res.os_monotonic_time_info.resolution;
+    time_sup.r.o.os_monotonic_time_extended
+	= sys_init_time_res.os_monotonic_time_info.extended;
+#endif
+    time_sup.r.o.os_system_time_func
+	= sys_init_time_res.os_system_time_info.func;
+    time_sup.r.o.os_system_time_clock_id
+	= sys_init_time_res.os_system_time_info.clock_id;
+    time_sup.r.o.os_system_time_locked
+	= sys_init_time_res.os_system_time_info.locked_use;
+    time_sup.r.o.os_system_time_resolution
+	= sys_init_time_res.os_system_time_info.resolution;
 }
 
 int 
-erts_init_time_sup(void)
+erts_init_time_sup(int time_correction, ErtsTimeWarpMode time_warp_mode)
 {
+    ErtsMonotonicTime resolution, ilength, intervals, short_isecs;
+#if !ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT
+    ErtsMonotonicTime abs_native_offset, native_offset;
+#endif
+
+    erts_hl_timer_init();
+
+    ASSERT(ERTS_MONOTONIC_TIME_MIN < ERTS_MONOTONIC_TIME_MAX);
+
     erts_smp_mtx_init(&erts_timeofday_mtx, "timeofday");
+    erts_smp_mtx_init(&erts_get_time_mtx, "get_time");
 
-    init_approx_time();
+    time_sup.r.o.correction = time_correction;
+    time_sup.r.o.warp_mode = time_warp_mode;
+ 
+    if (time_warp_mode == ERTS_SINGLE_TIME_WARP_MODE)
+	erts_smp_atomic32_init_nob(&time_sup.inf.c.preliminary_offset, 1);
+    else
+	erts_smp_atomic32_init_nob(&time_sup.inf.c.preliminary_offset, 0);
+    time_sup.inf.c.shadow_offset = 0;
 
-    last_emu_time.tv_sec = 0;
-    last_emu_time.tv_usec = 0;
+#if !ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT
+
+    /*
+     * NOTE! erts_time_sup__.r.o.start *need* to be a multiple
+     *       of ERTS_MONOTONIC_TIME_UNIT.
+     */
+
+#ifdef ARCH_32
+    erts_time_sup__.r.o.start = ((((ErtsMonotonicTime) 1) << 32)-1);
+    erts_time_sup__.r.o.start /= ERTS_MONOTONIC_TIME_UNIT;
+    erts_time_sup__.r.o.start *= ERTS_MONOTONIC_TIME_UNIT;
+    erts_time_sup__.r.o.start += ERTS_MONOTONIC_TIME_UNIT;
+    native_offset = erts_time_sup__.r.o.start - ERTS_MONOTONIC_BEGIN;
+    abs_native_offset = native_offset;
+#else /* ARCH_64 */
+    if (ERTS_MONOTONIC_TIME_UNIT <= 10*1000*1000) {
+	erts_time_sup__.r.o.start = 0;
+	native_offset = -ERTS_MONOTONIC_BEGIN;
+	abs_native_offset = ERTS_MONOTONIC_BEGIN;
+    }
+    else {
+	erts_time_sup__.r.o.start = ((ErtsMonotonicTime) MIN_SMALL);
+	erts_time_sup__.r.o.start /= ERTS_MONOTONIC_TIME_UNIT;
+	erts_time_sup__.r.o.start *= ERTS_MONOTONIC_TIME_UNIT;
+	native_offset = erts_time_sup__.r.o.start - ERTS_MONOTONIC_BEGIN;
+	abs_native_offset = -1*native_offset;
+    }
+#endif
+
+    erts_time_sup__.r.o.start_offset.native = native_offset;
+    erts_time_sup__.r.o.start_offset.nsec = (ErtsMonotonicTime)
+	erts_time_unit_conversion((Uint64) abs_native_offset,
+				  (Uint32) ERTS_MONOTONIC_TIME_UNIT,
+				  (Uint32) 1000*1000*1000);
+    erts_time_sup__.r.o.start_offset.usec = (ErtsMonotonicTime)
+	erts_time_unit_conversion((Uint64) abs_native_offset,
+				  (Uint32) ERTS_MONOTONIC_TIME_UNIT,
+				  (Uint32) 1000*1000);
+    erts_time_sup__.r.o.start_offset.msec = (ErtsMonotonicTime)
+	erts_time_unit_conversion((Uint64) abs_native_offset,
+				  (Uint32) ERTS_MONOTONIC_TIME_UNIT,
+				  (Uint32) 1000);
+    erts_time_sup__.r.o.start_offset.sec = (ErtsMonotonicTime)
+	erts_time_unit_conversion((Uint64) abs_native_offset,
+				  (Uint32) ERTS_MONOTONIC_TIME_UNIT,
+				  (Uint32) 1);
+    if (native_offset < 0) {
+	erts_time_sup__.r.o.start_offset.nsec *= -1;
+	erts_time_sup__.r.o.start_offset.usec *= -1;
+	erts_time_sup__.r.o.start_offset.msec *= -1;
+	erts_time_sup__.r.o.start_offset.sec *= -1;
+    }
 
-#ifndef SYS_CLOCK_RESOLUTION
-    clock_resolution = sys_init_time();
-#else
-    (void) sys_init_time();
 #endif
-    sys_gettimeofday(&inittv);
+
+    resolution = time_sup.r.o.os_system_time_resolution;
+#ifdef ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT
+    if (resolution > time_sup.r.o.os_monotonic_time_resolution)
+	resolution = time_sup.r.o.os_monotonic_time_resolution;
+#endif
+
+    time_sup.r.o.adj.large_diff = erts_time_sup__.r.o.monotonic_time_unit;
+    time_sup.r.o.adj.large_diff *= 50;
+    time_sup.r.o.adj.large_diff /= resolution;
+    if (time_sup.r.o.adj.large_diff < ERTS_USEC_TO_MONOTONIC(500))
+	time_sup.r.o.adj.large_diff = ERTS_USEC_TO_MONOTONIC(500);
+    time_sup.r.o.adj.small_diff = time_sup.r.o.adj.large_diff/10;
+
+    time_sup.r.o.drift_adj.resolution = resolution;
+
+    if (time_sup.r.o.os_corrected_monotonic_time) {
+	time_sup.r.o.drift_adj.use_avg = 0;
+	time_sup.r.o.drift_adj.intervals = 0;
+	time_sup.r.o.drift_adj.error = 0;
+	time_sup.inf.c.parmon.cdata.drift.dirty_counter = -1;
+    }
+    else {
+	/*
+	 * Calculate length of the interval in seconds needed
+	 * in order to get an error that is at most 1 micro second.
+	 * If this interval is longer than the short time correction
+	 * check interval we use the average of all values instead
+	 * of the latest value.
+	 */
+	short_isecs = ERTS_MONOTONIC_TO_SEC(ERTS_SHORT_TIME_CORRECTION_CHECK);
+	ilength = ERTS_ASSUMED_PRECISION_DROP * ERTS_MONOTONIC_TIME_UNIT;
+	ilength /= (resolution * ERTS_USEC_TO_MONOTONIC(1));
+	time_sup.r.o.drift_adj.use_avg = ilength > short_isecs;
+
+	if (ilength == 0)
+	    intervals = 5;
+	else {
+	    intervals = ilength / short_isecs;
+	    if (intervals > ERTS_MAX_DRIFT_INTERVALS)
+		intervals = ERTS_MAX_DRIFT_INTERVALS;
+	    else if (intervals < 5)
+		intervals = 5;
+	}
+	time_sup.r.o.drift_adj.intervals = (int) intervals;
+
+	/*
+	 * drift_adj.error equals maximum assumed error
+	 * over a short time interval. We use this value also
+	 * when examining a large interval. In this case the
+	 * error will be smaller, but we do not want to
+	 * recalculate this over and over again.
+	 */
+
+	time_sup.r.o.drift_adj.error = ERTS_MONOTONIC_TIME_UNIT;
+	time_sup.r.o.drift_adj.error *= ERTS_ASSUMED_PRECISION_DROP;
+	time_sup.r.o.drift_adj.error /= resolution * short_isecs;
+    }
+#ifdef ERTS_TIME_CORRECTION_PRINT
+    erts_fprintf(stderr, "resolution           = %b64d\n", resolution);
+    erts_fprintf(stderr, "adj large diff       = %b64d usec\n",
+		 ERTS_MONOTONIC_TO_USEC(time_sup.r.o.adj.large_diff));
+    erts_fprintf(stderr, "adj small diff       = %b64d usec\n",
+		 ERTS_MONOTONIC_TO_USEC(time_sup.r.o.adj.small_diff));
+    if (!time_sup.r.o.os_corrected_monotonic_time) {
+	erts_fprintf(stderr, "drift intervals      = %d\n",
+		     time_sup.r.o.drift_adj.intervals);
+	erts_fprintf(stderr, "drift adj error      = %b64d usec\n",
+		     ERTS_MONOTONIC_TO_USEC(time_sup.r.o.drift_adj.error));
+	erts_fprintf(stderr, "drift adj max diff   = %b64d nsec\n",
+		     ERTS_MONOTONIC_TO_NSEC(ERTS_TIME_DRIFT_MAX_ADJ_DIFF));
+	erts_fprintf(stderr, "drift adj min diff   = %b64d nsec\n",
+		     ERTS_MONOTONIC_TO_NSEC(ERTS_TIME_DRIFT_MIN_ADJ_DIFF));
+    }
+#endif
+
+    if (ERTS_MONOTONIC_TIME_UNIT < ERTS_CLKTCK_RESOLUTION)
+	ERTS_INTERNAL_ERROR("Too small monotonic time time unit");
+
+#ifndef ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT
+    time_sup.r.o.correction = 0;
+#else
+    if (time_sup.r.o.os_monotonic_time_disable)
+	time_sup.r.o.correction = 0;
+
+    if (time_sup.r.o.correction) {
+	ErtsMonotonicCorrectionData *cdatap;
+	erts_smp_rwmtx_opt_t rwmtx_opts = ERTS_SMP_RWMTX_OPT_DEFAULT_INITER;
+	ErtsMonotonicTime offset;
+	erts_os_times(&time_sup.inf.c.minit,
+		      &time_sup.inf.c.sinit);
+	time_sup.r.o.moffset = -1*time_sup.inf.c.minit;
+	time_sup.r.o.moffset += ERTS_MONOTONIC_BEGIN;
+	offset = time_sup.inf.c.sinit;
+	offset -= ERTS_MONOTONIC_BEGIN;
+	init_time_offset(offset);
+
+	rwmtx_opts.type = ERTS_SMP_RWMTX_TYPE_EXTREMELY_FREQUENT_READ;
+	rwmtx_opts.lived = ERTS_SMP_RWMTX_LONG_LIVED;
+
+	erts_smp_rwmtx_init_opt(&time_sup.inf.c.parmon.rwmtx,
+				&rwmtx_opts, "get_corrected_time");
+
+	cdatap = &time_sup.inf.c.parmon.cdata;
     
-#ifdef HAVE_GETHRTIME
-    sys_init_hrtime();
+	cdatap->drift.intervals[0].time.sys = time_sup.inf.c.sinit;
+	cdatap->drift.intervals[0].time.mon = time_sup.inf.c.minit;
+	cdatap->curr.correction.drift = 0;
+	cdatap->curr.correction.error = 0;
+	cdatap->curr.erl_mtime = ERTS_MONOTONIC_BEGIN;
+	cdatap->curr.os_mtime = time_sup.inf.c.minit;
+	cdatap->last_check = time_sup.inf.c.minit;
+	cdatap->short_check_interval = ERTS_INIT_SHORT_INTERVAL_COUNTER;
+	cdatap->prev = cdatap->curr;
+
+	if (!time_sup.r.o.os_corrected_monotonic_time)
+	    time_sup.r.o.get_time = get_corrected_time;
+	else if (time_sup.r.o.warp_mode == ERTS_MULTI_TIME_WARP_MODE)
+	    time_sup.r.o.get_time = get_os_corrected_time;
+	else
+	    time_sup.r.o.get_time = get_os_drift_corrected_time;
+    }
+    else
 #endif
-    init_tolerant_timeofday();
+    {
+	ErtsMonotonicTime stime, offset;
+	time_sup.r.o.get_time = get_not_corrected_time;
+	stime = time_sup.inf.c.sinit = erts_os_system_time();
+	offset = stime - ERTS_MONOTONIC_BEGIN;
+	time_sup.inf.c.not_corrected_moffset = offset;
+	init_time_offset(offset);
+	time_sup.f.c.last_not_corrected_time = 0;
+    }
+
+    prev_wall_clock_elapsed = 0;
 
-    init_erts_deliver_time(&inittv);
-    gtv = inittv;
-    then.tv_sec = then.tv_usec = 0;
+    previous_now = ERTS_MONOTONIC_TO_USEC(get_time_offset());
 
-    erts_deliver_time();
+#ifdef DEBUG
+    time_sup_initialized = 1;
+#endif
 
-    return CLOCK_RESOLUTION;
+    return ERTS_CLKTCK_RESOLUTION/1000;
 }    
+
+void
+erts_late_init_time_sup(void)
+{
+    erts_late_sys_init_time();
+}
+
+void
+erts_sched_init_time_sup(ErtsSchedulerData *esdp)
+{
+    esdp->timer_wheel = erts_create_timer_wheel(esdp);
+    esdp->next_tmo_ref = erts_get_next_timeout_reference(esdp->timer_wheel);
+    esdp->timer_service = erts_create_timer_service();
+#ifdef ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT
+    if (esdp->no == 1) {
+	/* A timer wheel to use must have beeen initialized */
+	if (time_sup.r.o.get_time != get_not_corrected_time)
+	    late_init_time_correction(esdp);
+    }
+#endif	
+}
+
+ErtsTimeWarpMode erts_time_warp_mode(void)
+{
+    return time_sup.r.o.warp_mode;
+}
+
+ErtsTimeOffsetState erts_time_offset_state(void)
+{
+    switch (time_sup.r.o.warp_mode) {
+    case ERTS_NO_TIME_WARP_MODE:
+	return ERTS_TIME_OFFSET_FINAL;
+    case ERTS_SINGLE_TIME_WARP_MODE:
+	if (erts_smp_atomic32_read_nob(&time_sup.inf.c.preliminary_offset))
+	    return ERTS_TIME_OFFSET_PRELIMINARY;
+	return ERTS_TIME_OFFSET_FINAL;
+    case ERTS_MULTI_TIME_WARP_MODE:
+	return ERTS_TIME_OFFSET_VOLATILE;
+    default:
+	ERTS_INTERNAL_ERROR("Invalid time warp mode");
+	return ERTS_TIME_OFFSET_VOLATILE;
+    }
+}
+
+/*
+ * erts_finalize_time_offset() will only change time offset
+ * the first time it is called when the emulator has been
+ * started in "single time warp" mode. Returns previous
+ * state:
+ * * ERTS_TIME_OFFSET_PRELIMINARY - Finalization performed
+ * * ERTS_TIME_OFFSET_FINAL - Already finialized; nothing changed
+ * * ERTS_TIME_OFFSET_VOLATILE - Not supported, either in
+ * * no correction mode (or multi time warp mode; not yet implemented).
+ */
+
+ErtsTimeOffsetState
+erts_finalize_time_offset(void)
+{
+    switch (time_sup.r.o.warp_mode) {
+    case ERTS_NO_TIME_WARP_MODE:
+	return ERTS_TIME_OFFSET_FINAL;
+    case ERTS_MULTI_TIME_WARP_MODE:
+	return ERTS_TIME_OFFSET_VOLATILE;
+    case ERTS_SINGLE_TIME_WARP_MODE: {
+	ErtsTimeOffsetState res = ERTS_TIME_OFFSET_FINAL;
+
+	erts_smp_mtx_lock(&erts_get_time_mtx);
+
+	if (erts_smp_atomic32_read_nob(&time_sup.inf.c.preliminary_offset)) {
+	    ErtsMonotonicTime mtime, new_offset;
+
+#ifdef ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT
+	    if (!time_sup.r.o.correction)
+#endif
+	    {
+		ErtsMonotonicTime stime = erts_os_system_time();
+
+		mtime = stime - time_sup.inf.c.not_corrected_moffset;
+
+		if (mtime >= time_sup.f.c.last_not_corrected_time) {
+		    time_sup.f.c.last_not_corrected_time = mtime;
+		    new_offset = time_sup.inf.c.not_corrected_moffset;
+		}
+		else {
+		    mtime = time_sup.f.c.last_not_corrected_time;
+
+		    ASSERT(time_sup.inf.c.not_corrected_moffset != stime - mtime);
+		    new_offset = stime - mtime;
+		    time_sup.inf.c.not_corrected_moffset = new_offset;
+		}
+
+	    }
+#ifdef ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT
+	    else {
+		ErtsSystemTime stime;
+		mtime = finalize_corrected_time_offset(&stime);
+		new_offset = stime - mtime;
+	    }
+#endif
+	    new_offset = ERTS_MONOTONIC_TO_USEC(new_offset);
+	    new_offset = ERTS_USEC_TO_MONOTONIC(new_offset);
+
+	    set_time_offset(new_offset);
+	    schedule_send_time_offset_changed_notifications(new_offset);
+
+	    erts_smp_atomic32_set_nob(&time_sup.inf.c.preliminary_offset, 0);
+	    res = ERTS_TIME_OFFSET_PRELIMINARY;
+	}
+
+	erts_smp_mtx_unlock(&erts_get_time_mtx);
+
+	return res;
+    }
+    default:
+	ERTS_INTERNAL_ERROR("Invalid time warp mode");
+	return ERTS_TIME_OFFSET_VOLATILE;
+    }
+}
+
 /* info functions */
 
 void 
@@ -498,23 +1323,17 @@ elapsed_time_both(UWord *ms_user, UWord *ms_sys,
 void 
 wall_clock_elapsed_time_both(UWord *ms_total, UWord *ms_diff)
 {
-    UWord prev_total;
-    SysTimeval tv;
+    ErtsMonotonicTime now, elapsed;
 
     erts_smp_mtx_lock(&erts_timeofday_mtx);
 
-    get_tolerant_timeofday(&tv);
-
-    *ms_total = 1000 * (tv.tv_sec - inittv.tv_sec) +
-	(tv.tv_usec - inittv.tv_usec) / 1000;
+    now = time_sup.r.o.get_time();
+    update_last_mtime(NULL, now);
 
-    prev_total = 1000 * (gtv.tv_sec - inittv.tv_sec) +
-	(gtv.tv_usec - inittv.tv_usec) / 1000;
-    *ms_diff = *ms_total - prev_total;
-    gtv = tv;
-
-    /* must sync the machine's idea of time here */
-    do_erts_deliver_time(&tv);
+    elapsed = ERTS_MONOTONIC_TO_MSEC(now);
+    *ms_total = (UWord) elapsed;
+    *ms_diff = (UWord) (elapsed - prev_wall_clock_elapsed);
+    prev_wall_clock_elapsed = elapsed;
 
     erts_smp_mtx_unlock(&erts_timeofday_mtx);
 }
@@ -890,146 +1709,566 @@ univ_to_local(Sint *year, Sint *month, Sint *day,
     return 0;
 }
 
-
 /* get a timestamp */
 void
 get_now(Uint* megasec, Uint* sec, Uint* microsec)
 {
-    SysTimeval now;
+    ErtsMonotonicTime now_megasec, now_sec, now, mtime, time_offset;
     
+    mtime = time_sup.r.o.get_time();
+    time_offset = get_time_offset();
+    update_last_mtime(NULL, mtime);
+    now = ERTS_MONOTONIC_TO_USEC(mtime + time_offset);
+
     erts_smp_mtx_lock(&erts_timeofday_mtx);
-    
-    get_tolerant_timeofday(&now);
-    do_erts_deliver_time(&now);
-
-    /* Make sure time is later than last */
-    if (then.tv_sec > now.tv_sec ||
-	(then.tv_sec == now.tv_sec && then.tv_usec >= now.tv_usec)) {
-	now = then;
-	now.tv_usec++;
-    }
-    /* Check for carry from above + general reasonability */
-    if (now.tv_usec >= 1000000) {
-	now.tv_usec = 0;
-	now.tv_sec++;
-    }
-    then = now;
+
+    /* Make sure now time is later than last time */
+    if (now <= previous_now)
+	now = previous_now + 1;
+
+    previous_now = now;
     
     erts_smp_mtx_unlock(&erts_timeofday_mtx);
-    
-    *megasec = (Uint) (now.tv_sec / 1000000);
-    *sec = (Uint) (now.tv_sec % 1000000);
-    *microsec = (Uint) (now.tv_usec);
 
-    update_approx_time(&now);
+    now_megasec = now / ERTS_MONOTONIC_TIME_TERA;
+    now_sec = now / ERTS_MONOTONIC_TIME_MEGA;
+    *megasec = (Uint) now_megasec;
+    *sec = (Uint) (now_sec - now_megasec*ERTS_MONOTONIC_TIME_MEGA);
+    *microsec = (Uint) (now - now_sec*ERTS_MONOTONIC_TIME_MEGA);
+
+    ASSERT(((ErtsMonotonicTime) *megasec)*ERTS_MONOTONIC_TIME_TERA
+	   + ((ErtsMonotonicTime) *sec)*ERTS_MONOTONIC_TIME_MEGA
+	   + ((ErtsMonotonicTime) *microsec) == now);
+}
+
+ErtsMonotonicTime
+erts_get_monotonic_time(ErtsSchedulerData *esdp)
+{
+    ErtsMonotonicTime mtime = time_sup.r.o.get_time();
+    update_last_mtime(esdp, mtime);
+    return mtime;    
 }
 
 void
 get_sys_now(Uint* megasec, Uint* sec, Uint* microsec)
 {
-    SysTimeval now;
-    
-    sys_gettimeofday(&now);
-    
-    *megasec = (Uint) (now.tv_sec / 1000000);
-    *sec = (Uint) (now.tv_sec % 1000000);
-    *microsec = (Uint) (now.tv_usec);
+    ErtsSystemTime stime = erts_os_system_time();
+    ErtsSystemTime ms, s, us;
+
+    us = ERTS_MONOTONIC_TO_USEC(stime);
+    s = us / (1000*1000);
+    ms = s / (1000*1000);
 
-    update_approx_time(&now);
+    *megasec = (Uint) ms;
+    *sec = (Uint) (s - ms*(1000*1000));
+    *microsec = (Uint) (us - s*(1000*1000));
 }
 
+#ifdef HAVE_ERTS_NOW_CPU
+void erts_get_now_cpu(Uint* megasec, Uint* sec, Uint* microsec) {
+  SysCpuTime t;
+  SysTimespec tp;
 
-/* deliver elapsed *ticks* to the machine - takes a pointer
-   to a struct timeval representing current time (to save
-   a gettimeofday() where possible) or NULL */
+  sys_get_proc_cputime(t, tp);
+  *microsec = (Uint)(tp.tv_nsec / 1000);
+  t = (tp.tv_sec / 1000000);
+  *megasec = (Uint)(t % 1000000);
+  *sec = (Uint)(tp.tv_sec % 1000000);
+}
+#endif
 
-void erts_deliver_time(void) {
-    SysTimeval now;
-    
-    erts_smp_mtx_lock(&erts_timeofday_mtx);
-    
-    get_tolerant_timeofday(&now);
-    do_erts_deliver_time(&now);
-    
-    erts_smp_mtx_unlock(&erts_timeofday_mtx);
+#include "big.h"
+
+void
+erts_monitor_time_offset(Eterm id, Eterm ref)
+{
+    erts_smp_mtx_lock(&erts_get_time_mtx);
+    erts_add_monitor(&time_offset_monitors, MON_TIME_OFFSET, ref, id, NIL);
+    no_time_offset_monitors++;
+    erts_smp_mtx_unlock(&erts_get_time_mtx);
+}
 
-    update_approx_time(&now);
+int
+erts_demonitor_time_offset(Eterm ref)
+{
+    int res;
+    ErtsMonitor *mon;
+    ASSERT(is_internal_ref(ref));
+    erts_smp_mtx_lock(&erts_get_time_mtx);
+    mon = erts_remove_monitor(&time_offset_monitors, ref);
+    if (!mon)
+	res = 0;
+    else {
+	ASSERT(no_time_offset_monitors > 0);
+	no_time_offset_monitors--;
+	res = 1;
+    }
+    erts_smp_mtx_unlock(&erts_get_time_mtx);
+    if (res)
+	erts_destroy_monitor(mon);
+    return res;
 }
 
-/* get *real* time (not ticks) remaining until next timeout - if there
-   isn't one, give a "long" time, that is guaranteed
-   to not cause overflow when we report elapsed time later on */
+typedef struct {
+    Eterm pid;
+    Eterm ref;
+    Eterm heap[REF_THING_SIZE];
+} ErtsTimeOffsetMonitorInfo;
 
-void erts_time_remaining(SysTimeval *rem_time)
+typedef struct {
+    Uint ix;
+    ErtsTimeOffsetMonitorInfo *to_mon_info;
+} ErtsTimeOffsetMonitorContext;
+
+static void
+save_time_offset_monitor(ErtsMonitor *mon, void *vcntxt)
 {
-    erts_time_t ticks;
-    SysTimeval cur_time;
-    erts_time_t elapsed;
-
-    /* erts_next_time() returns no of ticks to next timeout or -1 if none */
-
-    ticks = (erts_time_t) erts_next_time();
-    if (ticks == (erts_time_t) -1) {
-	/* timer queue empty */
-	/* this will cause at most 100000000 ticks */
-	rem_time->tv_sec = 100000;
-	rem_time->tv_usec = 0;
-    } else {
-	/* next timeout after ticks ticks */
-	ticks *= CLOCK_RESOLUTION;
-	
-	erts_smp_mtx_lock(&erts_timeofday_mtx);
-	
-	get_tolerant_timeofday(&cur_time);
-	cur_time.tv_usec = 1000 * 
-	    (cur_time.tv_usec / 1000);/* ms resolution*/
-	elapsed = 1000 * (cur_time.tv_sec - last_delivered.tv_sec) +
-	    (cur_time.tv_usec - last_delivered.tv_usec) / 1000;
-	
-	erts_smp_mtx_unlock(&erts_timeofday_mtx);
+    ErtsTimeOffsetMonitorContext *cntxt;
+    Eterm *from_hp, *to_hp;
+    Uint mix;
+    int hix;
+
+    cntxt = (ErtsTimeOffsetMonitorContext *) vcntxt;
+    mix = (cntxt->ix)++;
+    cntxt->to_mon_info[mix].pid = mon->pid;
+    to_hp = &cntxt->to_mon_info[mix].heap[0];
+
+    ASSERT(is_internal_ref(mon->ref));
+    from_hp = internal_ref_val(mon->ref);
+    ASSERT(thing_arityval(*from_hp) + 1 == REF_THING_SIZE);
+
+    for (hix = 0; hix < REF_THING_SIZE; hix++)
+	to_hp[hix] = from_hp[hix];
+
+    cntxt->to_mon_info[mix].ref
+	= make_internal_ref(&cntxt->to_mon_info[mix].heap[0]);
+
+}
+
+static void
+send_time_offset_changed_notifications(void *new_offsetp)
+{
+    ErtsMonotonicTime new_offset;
+    ErtsTimeOffsetMonitorInfo *to_mon_info = NULL; /* Shut up faulty warning */
+    Uint no_monitors;
+    char *tmp = NULL;
+
+#ifdef ARCH_64
+    new_offset = (ErtsMonotonicTime) new_offsetp;
+#else
+    new_offset = *((ErtsMonotonicTime *) new_offsetp);
+    erts_free(ERTS_ALC_T_NEW_TIME_OFFSET, new_offsetp);
+#endif
+    new_offset -= ERTS_MONOTONIC_OFFSET_NATIVE;
+
+    erts_smp_mtx_lock(&erts_get_time_mtx);
+
+    no_monitors = no_time_offset_monitors;
+    if (no_monitors) {
+	ErtsTimeOffsetMonitorContext cntxt;
+	Uint alloc_sz;
 	
-	if (ticks <= elapsed) { /* Ooops, better hurry */
-	    rem_time->tv_sec = rem_time->tv_usec = 0;
-	    return;
+	/* Monitor info array size */
+	alloc_sz = no_monitors*sizeof(ErtsTimeOffsetMonitorInfo);
+	/* + template max size */
+	alloc_sz += 6*sizeof(Eterm); /* 5-tuple */
+	alloc_sz += ERTS_MAX_SINT64_HEAP_SIZE*sizeof(Eterm); /* max offset size */
+	tmp = erts_alloc(ERTS_ALC_T_TMP, alloc_sz);
+
+	to_mon_info = (ErtsTimeOffsetMonitorInfo *) tmp;
+	cntxt.ix = 0;
+	cntxt.to_mon_info = to_mon_info;
+
+	erts_doforall_monitors(time_offset_monitors,
+			       save_time_offset_monitor,
+			       &cntxt);
+
+	ASSERT(cntxt.ix == no_monitors);
+    }
+
+    erts_smp_mtx_unlock(&erts_get_time_mtx);
+
+    if (no_monitors) {
+	Eterm *hp, *patch_refp, new_offset_term, message_template;
+	Uint mix, hsz;
+
+	/* Make message template */
+
+	hp = (Eterm *) (tmp + no_monitors*sizeof(ErtsTimeOffsetMonitorInfo));
+
+	hsz = 6; /* 5-tuple */
+	hsz += REF_THING_SIZE;
+	hsz += ERTS_SINT64_HEAP_SIZE(new_offset);
+
+	if (IS_SSMALL(new_offset))
+	    new_offset_term = make_small(new_offset);
+	else
+	    new_offset_term = erts_sint64_to_big(new_offset, &hp);
+	message_template = TUPLE5(hp,
+				  am_CHANGE,
+				  THE_NON_VALUE, /* Patch point for ref */
+				  am_time_offset,
+				  am_clock_service,
+				  new_offset_term);
+	patch_refp = &hp[2];
+
+	ASSERT(*patch_refp == THE_NON_VALUE);
+
+	for (mix = 0; mix < no_monitors; mix++) {
+	    Process *rp = erts_proc_lookup(to_mon_info[mix].pid);
+	    if (rp) {
+		Eterm ref = to_mon_info[mix].ref;
+		ErtsProcLocks rp_locks = ERTS_PROC_LOCK_LINK;
+		erts_smp_proc_lock(rp, ERTS_PROC_LOCK_LINK);
+		if (erts_lookup_monitor(ERTS_P_MONITORS(rp), ref)) {
+		    ErlHeapFragment *bp;
+		    ErlOffHeap *ohp;
+		    Eterm message;
+
+		    hp = erts_alloc_message_heap(hsz, &bp, &ohp, rp, &rp_locks);
+		    *patch_refp = ref;
+		    ASSERT(hsz == size_object(message_template));
+		    message = copy_struct(message_template, hsz, &hp, ohp);
+		    erts_queue_message(rp, &rp_locks, bp, message, NIL);
+		}
+		erts_smp_proc_unlock(rp, rp_locks);
+	    }
 	}
-	rem_time->tv_sec = (ticks - elapsed) / 1000;
-	rem_time->tv_usec = 1000 * ((ticks - elapsed) % 1000);
+
+	erts_free(ERTS_ALC_T_TMP, tmp);
     }
 }
 
-void erts_get_timeval(SysTimeval *tv)
+static void
+schedule_send_time_offset_changed_notifications(ErtsMonotonicTime new_offset)
 {
-    erts_smp_mtx_lock(&erts_timeofday_mtx);
-    get_tolerant_timeofday(tv);
-    erts_smp_mtx_unlock(&erts_timeofday_mtx);
-    update_approx_time(tv);
+#ifdef ARCH_64
+    void *new_offsetp = (void *) new_offset;
+    ASSERT(sizeof(void *) == sizeof(ErtsMonotonicTime));
+#else
+    void *new_offsetp = erts_alloc(ERTS_ALC_T_NEW_TIME_OFFSET,
+				   sizeof(ErtsMonotonicTime));
+    *((ErtsMonotonicTime *) new_offsetp) = new_offset;
+#endif
+    erts_schedule_misc_aux_work(1,
+				send_time_offset_changed_notifications,
+				new_offsetp);
 }
 
-erts_time_t
-erts_get_time(void)
+static ERTS_INLINE Eterm
+make_time_val(Process *c_p, ErtsMonotonicTime time_val)
 {
-    SysTimeval sys_tv;
-    
-    erts_smp_mtx_lock(&erts_timeofday_mtx);
-    
-    get_tolerant_timeofday(&sys_tv);
-    
-    erts_smp_mtx_unlock(&erts_timeofday_mtx);
+    Sint64 val = (Sint64) time_val;
+    Eterm *hp;
+    Uint sz;
 
-    update_approx_time(&sys_tv);
+    if (IS_SSMALL(val))
+	return make_small(val);
 
-    return sys_tv.tv_sec;
+    sz = ERTS_SINT64_HEAP_SIZE(val);
+    hp = HAlloc(c_p, sz);
+    return erts_sint64_to_big(val, &hp);
 }
 
-#ifdef HAVE_ERTS_NOW_CPU
-void erts_get_now_cpu(Uint* megasec, Uint* sec, Uint* microsec) {
-  SysCpuTime t;
-  SysTimespec tp;
+Eterm
+erts_get_monotonic_start_time(struct process *c_p)
+{
+    return make_time_val(c_p, ERTS_MONOTONIC_TIME_START_EXTERNAL);
+}
 
-  sys_get_proc_cputime(t, tp);
-  *microsec = (Uint)(tp.tv_nsec / 1000);
-  t = (tp.tv_sec / 1000000);
-  *megasec = (Uint)(t % 1000000);
-  *sec = (Uint)(tp.tv_sec % 1000000);
+Eterm
+erts_get_monotonic_end_time(struct process *c_p)
+{
+    return make_time_val(c_p, ERTS_MONOTONIC_TIME_END_EXTERNAL);
+}
+
+static Eterm
+bld_monotonic_time_source(Uint **hpp, Uint *szp, Sint64 os_mtime)
+{
+#ifndef ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT
+    return NIL;
+#else
+    int i = 0;
+    Eterm k[6];
+    Eterm v[6];
+
+    if (time_sup.r.o.os_monotonic_time_disable)
+	return NIL;
+
+    k[i] = erts_bld_atom(hpp, szp, "function");
+    v[i++] = erts_bld_atom(hpp, szp,
+			   time_sup.r.o.os_monotonic_time_func);
+
+    if (time_sup.r.o.os_monotonic_time_clock_id) {
+	k[i] = erts_bld_atom(hpp, szp, "clock_id");
+	v[i++] = erts_bld_atom(hpp, szp,
+			       time_sup.r.o.os_monotonic_time_clock_id);
+    }
+
+    k[i] = erts_bld_atom(hpp, szp, "resolution");
+    v[i++] = erts_bld_uint64(hpp, szp,
+			     time_sup.r.o.os_monotonic_time_resolution);
+
+    k[i] = erts_bld_atom(hpp, szp, "extended");
+    v[i++] = time_sup.r.o.os_monotonic_time_extended ? am_yes : am_no;
+
+    k[i] = erts_bld_atom(hpp, szp, "parallel");
+    v[i++] = time_sup.r.o.os_monotonic_time_locked ? am_no : am_yes;
+
+    k[i] = erts_bld_atom(hpp, szp, "time");
+    v[i++] = erts_bld_sint64(hpp, szp, os_mtime);
+
+    return erts_bld_2tup_list(hpp, szp, (Sint) i, k, v);
+#endif
 }
+
+Eterm
+erts_monotonic_time_source(struct process *c_p)
+{
+    Uint hsz = 0;
+    Eterm *hp = NULL;
+    Sint64 os_mtime = 0;
+#ifdef ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT
+    if (!time_sup.r.o.os_monotonic_time_disable)
+	os_mtime = (Sint64) erts_os_monotonic_time();
+#endif
+
+    bld_monotonic_time_source(NULL, &hsz, os_mtime);
+    if (hsz)
+	hp = HAlloc(c_p, hsz);
+    return bld_monotonic_time_source(&hp, NULL, os_mtime);
+}
+
+static Eterm
+bld_system_time_source(Uint **hpp, Uint *szp, Sint64 os_stime)
+{
+    int i = 0;
+    Eterm k[5];
+    Eterm v[5];
+
+    k[i] = erts_bld_atom(hpp, szp, "function");
+    v[i++] = erts_bld_atom(hpp, szp,
+			   time_sup.r.o.os_system_time_func);
+
+    if (time_sup.r.o.os_system_time_clock_id) {
+	k[i] = erts_bld_atom(hpp, szp, "clock_id");
+	v[i++] = erts_bld_atom(hpp, szp,
+			       time_sup.r.o.os_system_time_clock_id);
+    }
+
+    k[i] = erts_bld_atom(hpp, szp, "resolution");
+    v[i++] = erts_bld_uint64(hpp, szp,
+			     time_sup.r.o.os_system_time_resolution);
+
+    k[i] = erts_bld_atom(hpp, szp, "parallel");
+    v[i++] = am_yes;
+
+    k[i] = erts_bld_atom(hpp, szp, "time");
+    v[i++] = erts_bld_sint64(hpp, szp, os_stime);
+
+    return erts_bld_2tup_list(hpp, szp, (Sint) i, k, v);
+}
+
+Eterm
+erts_system_time_source(struct process *c_p)
+{
+    Uint hsz = 0;
+    Eterm *hp = NULL;
+    Sint64 os_stime = (Sint64) erts_os_system_time();
+
+    bld_system_time_source(NULL, &hsz, os_stime);
+    if (hsz)
+	hp = HAlloc(c_p, hsz);
+    return bld_system_time_source(&hp, NULL, os_stime);
+}
+
+
+#include "bif.h"
+
+static ERTS_INLINE Eterm
+time_unit_conversion(Process *c_p, Eterm term, ErtsMonotonicTime val, ErtsMonotonicTime muloff)
+{
+    ErtsMonotonicTime result;
+    BIF_RETTYPE ret;
+
+    if (val < 0)
+	goto trap_to_erlang_code;
+
+    /* Convert to common user specified time units */
+    switch (term) {
+    case am_seconds:
+    case make_small(1):
+	result = ERTS_MONOTONIC_TO_SEC(val) + muloff*ERTS_MONOTONIC_OFFSET_SEC;
+	ERTS_BIF_PREP_RET(ret, make_time_val(c_p, result));
+	break;
+    case am_milli_seconds:
+    case make_small(1000):
+	result = ERTS_MONOTONIC_TO_MSEC(val) + muloff*ERTS_MONOTONIC_OFFSET_MSEC;
+	ERTS_BIF_PREP_RET(ret, make_time_val(c_p, result));
+	break;
+    case am_micro_seconds:
+    case make_small(1000*1000):
+	result = ERTS_MONOTONIC_TO_USEC(val) + muloff*ERTS_MONOTONIC_OFFSET_USEC;
+	ERTS_BIF_PREP_RET(ret, make_time_val(c_p, result));
+	break;
+#ifdef ARCH_64
+    case am_nano_seconds:
+    case make_small(1000*1000*1000):
+	result = ERTS_MONOTONIC_TO_NSEC(val) + muloff*ERTS_MONOTONIC_OFFSET_NSEC;
+	ERTS_BIF_PREP_RET(ret, make_time_val(c_p, result));
+	break;
 #endif
+    default: {
+	Eterm value, native_res;
+#ifndef ARCH_64
+	Sint user_res;
+	if (term == am_nano_seconds)
+	    goto to_nano_seconds;
+	if (term_to_Sint(term, &user_res)) {
+	    if (user_res == 1000*1000*1000) {
+	    to_nano_seconds:
+		result = (ERTS_MONOTONIC_TO_NSEC(val)
+			  + muloff*ERTS_MONOTONIC_OFFSET_NSEC);
+		ERTS_BIF_PREP_RET(ret, make_time_val(c_p, result));
+		break;
+	    }
+	    if (user_res <= 0)
+		goto badarg;
+	}
+#else
+	if (is_small(term)) {
+	    if (signed_val(term) <= 0)
+		goto badarg;
+	}
+#endif
+	else if (is_big(term)) {
+	    if (big_sign(term))
+		goto badarg;
+	}
+	else {
+	badarg:
+	    ERTS_BIF_PREP_ERROR(ret, c_p, BADARG);
+	    break;
+	}
+
+	trap_to_erlang_code:
+	/* Do it in erlang code instead; pass along values to use... */
+	value = make_time_val(c_p, val + muloff*ERTS_MONOTONIC_OFFSET_NATIVE);
+	native_res = make_time_val(c_p, ERTS_MONOTONIC_TIME_UNIT);
+
+	ERTS_BIF_PREP_TRAP3(ret, erts_convert_time_unit_trap, c_p,
+			    value, native_res, term);
+
+	break;
+    }
+    }
+
+    return ret;
+}
+
+/* Built in functions */
+
+BIF_RETTYPE monotonic_time_0(BIF_ALIST_0)
+{
+    ErtsMonotonicTime mtime = time_sup.r.o.get_time();
+    update_last_mtime(ERTS_PROC_GET_SCHDATA(BIF_P), mtime);
+    mtime += ERTS_MONOTONIC_OFFSET_NATIVE;
+    BIF_RET(make_time_val(BIF_P, mtime));
+}
+
+BIF_RETTYPE monotonic_time_1(BIF_ALIST_1)
+{
+    ErtsMonotonicTime mtime = time_sup.r.o.get_time();
+    update_last_mtime(ERTS_PROC_GET_SCHDATA(BIF_P), mtime);
+    BIF_RET(time_unit_conversion(BIF_P, BIF_ARG_1, mtime, 1));
+}
+
+BIF_RETTYPE system_time_0(BIF_ALIST_0)
+{
+    ErtsMonotonicTime mtime, offset;
+    mtime = time_sup.r.o.get_time();
+    offset = get_time_offset();
+    update_last_mtime(ERTS_PROC_GET_SCHDATA(BIF_P), mtime);
+    BIF_RET(make_time_val(BIF_P, mtime + offset));
+}
+
+BIF_RETTYPE system_time_1(BIF_ALIST_0)
+{
+    ErtsMonotonicTime mtime, offset;
+    mtime = time_sup.r.o.get_time();
+    offset = get_time_offset();
+    update_last_mtime(ERTS_PROC_GET_SCHDATA(BIF_P), mtime);
+    BIF_RET(time_unit_conversion(BIF_P, BIF_ARG_1, mtime + offset, 0));
+}
+
+BIF_RETTYPE erts_internal_time_unit_0(BIF_ALIST_0)
+{
+    BIF_RET(make_time_val(BIF_P, ERTS_MONOTONIC_TIME_UNIT));
+}
+
+BIF_RETTYPE time_offset_0(BIF_ALIST_0)
+{
+    ErtsMonotonicTime time_offset = get_time_offset();
+    time_offset -= ERTS_MONOTONIC_OFFSET_NATIVE;
+    BIF_RET(make_time_val(BIF_P, time_offset));
+}
+
+BIF_RETTYPE time_offset_1(BIF_ALIST_1)
+{
+    BIF_RET(time_unit_conversion(BIF_P, BIF_ARG_1, get_time_offset(), -1));
+}
+
+
+BIF_RETTYPE timestamp_0(BIF_ALIST_0)
+{
+    Eterm *hp, res;
+    ErtsMonotonicTime stime, mtime, all_sec, offset;
+    Uint mega_sec, sec, micro_sec;
+
+    mtime = time_sup.r.o.get_time();
+    offset = get_time_offset();
+    update_last_mtime(ERTS_PROC_GET_SCHDATA(BIF_P), mtime);
+    stime = ERTS_MONOTONIC_TO_USEC(mtime + offset);
+    all_sec = stime / ERTS_MONOTONIC_TIME_MEGA;
+    mega_sec = (Uint) (stime / ERTS_MONOTONIC_TIME_TERA);
+    sec = (Uint) (all_sec - (((ErtsMonotonicTime) mega_sec)
+			     * ERTS_MONOTONIC_TIME_MEGA));
+    micro_sec = (Uint) (stime - all_sec*ERTS_MONOTONIC_TIME_MEGA);
+
+    ASSERT(((ErtsMonotonicTime) mega_sec)*ERTS_MONOTONIC_TIME_TERA
+	   + ((ErtsMonotonicTime) sec)*ERTS_MONOTONIC_TIME_MEGA
+	   + micro_sec == stime);
+
+    /*
+     * Mega seconds is the only value that potentially
+     * ever could be a bignum. However, that wont happen
+     * during at least the next 4 million years...
+     *
+     * (System time will also have wrapped in the
+     * 64-bit integer before we get there...)
+     */
+
+    ASSERT(IS_USMALL(0, mega_sec));
+    ASSERT(IS_USMALL(0, sec));
+    ASSERT(IS_USMALL(0, micro_sec));
+
+    hp = HAlloc(BIF_P, 4);
+    res = TUPLE3(hp,
+		 make_small(mega_sec),
+		 make_small(sec),
+		 make_small(micro_sec));
+    BIF_RET(res);
+}
+
+BIF_RETTYPE os_system_time_0(BIF_ALIST_0)
+{
+    ErtsSystemTime stime = erts_os_system_time();
+    BIF_RET(make_time_val(BIF_P, stime));
+}
+
+BIF_RETTYPE os_system_time_1(BIF_ALIST_0)
+{
+    ErtsSystemTime stime = erts_os_system_time();
+    BIF_RET(time_unit_conversion(BIF_P, BIF_ARG_1, stime, 0));
+}
+
diff --git a/erts/emulator/beam/erl_trace.c b/erts/emulator/beam/erl_trace.c
index ea5c850a30..aaecc5a02e 100644
--- a/erts/emulator/beam/erl_trace.c
+++ b/erts/emulator/beam/erl_trace.c
@@ -130,14 +130,9 @@ do { \
     enqueue_sys_msg_unlocked(SYS_MSG_TYPE_TRACE, (FPID), (TPID), (MSG), (BP)); \
 } while(0)
 #else
-#ifdef USE_VM_PROBES
-#define ERTS_ENQ_TRACE_MSG(FPID, TPROC, MSG, BP) \
-    erts_queue_message((TPROC), NULL, (BP), (MSG), NIL, NIL)
-#else
 #define ERTS_ENQ_TRACE_MSG(FPID, TPROC, MSG, BP) \
     erts_queue_message((TPROC), NULL, (BP), (MSG), NIL)
 #endif
-#endif
 
 /*
  * NOTE that the ERTS_GET_TRACER_REF() returns from the function  (!!!)
@@ -636,11 +631,7 @@ profile_send(Eterm from, Eterm message) {
 	hp = erts_alloc_message_heap(sz, &bp, &off_heap, profile_p, 0);
 	msg = copy_struct(message, sz, &hp, &bp->off_heap);
 	
-    	erts_queue_message(profile_p, NULL, bp, msg, NIL
-#ifdef USE_VM_PROBES
-			   , NIL
-#endif
-			   );
+        erts_queue_message(profile_p, NULL, bp, msg, NIL);
     }
 }
 
@@ -1240,11 +1231,8 @@ seq_trace_output_generic(Eterm token, Eterm msg, Uint type,
 	enqueue_sys_msg_unlocked(SYS_MSG_TYPE_SEQTRACE, NIL, NIL, mess, bp);
 	erts_smp_mtx_unlock(&smq_mtx);
 #else
-	erts_queue_message(tracer, NULL, bp, mess, NIL
-#ifdef USE_VM_PROBES
-			   , NIL
-#endif
-			   ); /* trace_token must be NIL here */
+        /* trace_token must be NIL here */
+	erts_queue_message(tracer, NULL, bp, mess, NIL);
 #endif
     }
 }
@@ -2225,7 +2213,7 @@ trace_gc(Process *p, Eterm what)
     Eterm* limit;
 #endif
 
-    ASSERT(sizeof(values)/sizeof(*values) == sizeof(tags)/sizeof(Eterm));
+    ERTS_CT_ASSERT(sizeof(values)/sizeof(*values) == sizeof(tags)/sizeof(Eterm));
 
     UseTmpHeap(LOCAL_HEAP_SIZE,p);
 
@@ -2343,11 +2331,7 @@ monitor_long_schedule_proc(Process *p, BeamInstr *in_fp, BeamInstr *out_fp, Uint
 #ifdef ERTS_SMP
     enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, p->common.id, NIL, msg, bp);
 #else
-    erts_queue_message(monitor_p, NULL, bp, msg, NIL
-#ifdef USE_VM_PROBES
-			   , NIL
-#endif
-		       );
+    erts_queue_message(monitor_p, NULL, bp, msg, NIL);
 #endif
 }
 void 
@@ -2408,11 +2392,7 @@ monitor_long_schedule_port(Port *pp, ErtsPortTaskType type, Uint time)
 #ifdef ERTS_SMP
     enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, pp->common.id, NIL, msg, bp);
 #else
-    erts_queue_message(monitor_p, NULL, bp, msg, NIL
-#ifdef USE_VM_PROBES
-			   , NIL
-#endif
-		       );
+    erts_queue_message(monitor_p, NULL, bp, msg, NIL);
 #endif
 }
 
@@ -2483,11 +2463,7 @@ monitor_long_gc(Process *p, Uint time) {
 #ifdef ERTS_SMP
     enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, p->common.id, NIL, msg, bp);
 #else
-    erts_queue_message(monitor_p, NULL, bp, msg, NIL
-#ifdef USE_VM_PROBES
-			   , NIL
-#endif
-		       );
+    erts_queue_message(monitor_p, NULL, bp, msg, NIL);
 #endif
 }
 
@@ -2558,11 +2534,7 @@ monitor_large_heap(Process *p) {
 #ifdef ERTS_SMP
     enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, p->common.id, NIL, msg, bp);
 #else
-    erts_queue_message(monitor_p, NULL, bp, msg, NIL
-#ifdef USE_VM_PROBES
-		       , NIL
-#endif
-		       );
+    erts_queue_message(monitor_p, NULL, bp, msg, NIL);
 #endif
 }
 
@@ -2590,11 +2562,7 @@ monitor_generic(Process *p, Eterm type, Eterm spec) {
 #ifdef ERTS_SMP
     enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, p->common.id, NIL, msg, bp);
 #else
-    erts_queue_message(monitor_p, NULL, bp, msg, NIL
-#ifdef USE_VM_PROBES
-		       , NIL
-#endif
-		       );
+    erts_queue_message(monitor_p, NULL, bp, msg, NIL);
 #endif
 
 }
@@ -3389,11 +3357,7 @@ sys_msg_dispatcher_func(void *unused)
 		}
 		else {
 		queue_proc_msg:
-		    erts_queue_message(proc,&proc_locks,smqp->bp,smqp->msg,NIL
-#ifdef USE_VM_PROBES
-				       , NIL
-#endif
-				       );
+		    erts_queue_message(proc,&proc_locks,smqp->bp,smqp->msg,NIL);
 #ifdef DEBUG_PRINTOUTS
 		    erts_fprintf(stderr, "delivered\n");
 #endif
@@ -3492,16 +3456,13 @@ init_sys_msg_dispatcher(void)
     thr_opts.coreNo   = 0;
 #endif
     thr_opts.detached = 1;
+    thr_opts.name = "sys_msg_dispatcher";
     init_smq_element_alloc();
     sys_message_queue = NULL;
     sys_message_queue_end = NULL;
     erts_smp_cnd_init(&smq_cnd);
     erts_smp_mtx_init(&smq_mtx, "sys_msg_q");
 
-#ifdef ETHR_HAVE_THREAD_NAMES
-    thr_opts.name = "sys_msg_dispatcher";
-#endif
-
     erts_smp_thr_create(&sys_msg_dispatcher_tid,
 			sys_msg_dispatcher_func,
 			NULL,
diff --git a/erts/emulator/beam/erl_utils.h b/erts/emulator/beam/erl_utils.h
index c32f8fd61c..6a28105cb9 100644
--- a/erts/emulator/beam/erl_utils.h
+++ b/erts/emulator/beam/erl_utils.h
@@ -113,12 +113,14 @@ void erts_silence_warn_unused_result(long unused);
 
 int erts_fit_in_bits_int64(Sint64);
 int erts_fit_in_bits_int32(Sint32);
+int erts_fit_in_bits_uint(Uint);
 int erts_list_length(Eterm);
 int erts_is_builtin(Eterm, Eterm, int);
 Uint32 make_broken_hash(Eterm);
 Uint32 block_hash(byte *, unsigned, Uint32);
 Uint32 make_hash2(Eterm);
 Uint32 make_hash(Eterm);
+Uint32 make_internal_hash(Eterm);
 
 void erts_save_emu_args(int argc, char **argv);
 Eterm erts_get_emu_args(struct process *c_p);
@@ -165,24 +167,26 @@ int eq(Eterm, Eterm);
 #define EQ(x,y) (((x) == (y)) || (is_not_both_immed((x),(y)) && eq((x),(y))))
 
 #if HALFWORD_HEAP
-Sint erts_cmp_rel_opt(Eterm, Eterm*, Eterm, Eterm*, int);
-#define cmp_rel(A,A_BASE,B,B_BASE)       erts_cmp_rel_opt(A,A_BASE,B,B_BASE,0)
-#define cmp_rel_term(A,A_BASE,B,B_BASE)  erts_cmp_rel_opt(A,A_BASE,B,B_BASE,1)
-#define CMP(A,B)                         erts_cmp_rel_opt(A,NULL,B,NULL,0)
-#define CMP_TERM(A,B)                    erts_cmp_rel_opt(A,NULL,B,NULL,1)
+Sint erts_cmp_rel_opt(Eterm, Eterm*, Eterm, Eterm*, int, int);
+#define cmp_rel(A,A_BASE,B,B_BASE)       erts_cmp_rel_opt(A,A_BASE,B,B_BASE,0,0)
+#define cmp_rel_term(A,A_BASE,B,B_BASE)  erts_cmp_rel_opt(A,A_BASE,B,B_BASE,1,0)
+#define CMP(A,B)                         erts_cmp_rel_opt(A,NULL,B,NULL,0,0)
+#define CMP_TERM(A,B)                    erts_cmp_rel_opt(A,NULL,B,NULL,1,0)
+#define CMP_EQ_ONLY(A,B)                 erts_cmp_rel_opt(A,NULL,B,NULL,0,1)
 #else
-Sint cmp(Eterm, Eterm);
-Sint erts_cmp(Eterm, Eterm, int);
-#define cmp_rel(A,A_BASE,B,B_BASE)       erts_cmp(A,B,0)
-#define cmp_rel_term(A,A_BASE,B,B_BASE)  erts_cmp(A,B,1)
-#define CMP(A,B)                         erts_cmp(A,B,0)
-#define CMP_TERM(A,B)                    erts_cmp(A,B,1)
+Sint erts_cmp(Eterm, Eterm, int, int);
+Sint cmp(Eterm a, Eterm b);
+#define cmp_rel(A,A_BASE,B,B_BASE)       erts_cmp(A,B,0,0)
+#define cmp_rel_term(A,A_BASE,B,B_BASE)  erts_cmp(A,B,1,0)
+#define CMP(A,B)                         erts_cmp(A,B,0,0)
+#define CMP_TERM(A,B)                    erts_cmp(A,B,1,0)
+#define CMP_EQ_ONLY(A,B)                 erts_cmp(A,B,0,1)
 #endif
 
 #define cmp_lt(a,b)          (CMP((a),(b)) <  0)
 #define cmp_le(a,b)          (CMP((a),(b)) <= 0)
-#define cmp_eq(a,b)          (CMP((a),(b)) == 0)
-#define cmp_ne(a,b)          (CMP((a),(b)) != 0)
+#define cmp_eq(a,b)          (CMP_EQ_ONLY((a),(b)) == 0)
+#define cmp_ne(a,b)          (CMP_EQ_ONLY((a),(b)) != 0)
 #define cmp_ge(a,b)          (CMP((a),(b)) >= 0)
 #define cmp_gt(a,b)          (CMP((a),(b)) >  0)
 
diff --git a/erts/emulator/beam/erl_vm.h b/erts/emulator/beam/erl_vm.h
index 6687b044ee..3a9fb1e07b 100644
--- a/erts/emulator/beam/erl_vm.h
+++ b/erts/emulator/beam/erl_vm.h
@@ -20,8 +20,6 @@
 #ifndef __ERL_VM_H__
 #define __ERL_VM_H__
 
-/* #define ERTS_OPCODE_COUNTER_SUPPORT */
-
 /* FORCE_HEAP_FRAGS:
  * Debug provocation to make HAlloc always create heap fragments (if allowed)
  * even if there is room on heap.
@@ -119,9 +117,9 @@
 
 #if defined(DEBUG) || defined(CHECK_FOR_HOLES)
 #if HALFWORD_HEAP
-# define ERTS_HOLE_MARKER (0xaf5e78ccU)
+# define ERTS_HOLE_MARKER (0xdeadbeef)
 #else
-# define ERTS_HOLE_MARKER (((0xaf5e78ccUL << 24) << 8) | 0xaf5e78ccUL)
+# define ERTS_HOLE_MARKER (((0xdeadbeef << 24) << 8) | 0xdeadbeef)
 #endif
 #endif
 
diff --git a/erts/emulator/beam/error.h b/erts/emulator/beam/error.h
index ddc2c1396d..e63967adb6 100644
--- a/erts/emulator/beam/error.h
+++ b/erts/emulator/beam/error.h
@@ -140,7 +140,13 @@
 #define EXC_NOTSUP		((17 << 8) | EXC_ERROR)
 					/* Not supported */
 
-#define NUMBER_EXIT_CODES 18	/* The number of exit code indices */
+#define EXC_BADMAP		((18 << 8) | EXC_ERROR)
+					/* Bad map */
+
+#define EXC_BADKEY		((19 << 8) | EXC_ERROR)
+					/* Bad key in map */
+
+#define NUMBER_EXIT_CODES 20	/* The number of exit code indices */
 
 /*
  * Internal pseudo-error codes.
@@ -152,6 +158,8 @@
  */
 #define BADARG EXC_BADARG
 #define BADARITH EXC_BADARITH
+#define BADKEY EXC_BADKEY
+#define BADMAP EXC_BADMAP
 #define BADMATCH EXC_BADMATCH
 #define SYSTEM_LIMIT EXC_SYSTEM_LIMIT
 
diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c
index 45d1f7514e..fe48298155 100644
--- a/erts/emulator/beam/external.c
+++ b/erts/emulator/beam/external.c
@@ -36,7 +36,9 @@
 #include "erl_process.h"
 #include "error.h"
 #include "external.h"
+#define ERL_WANT_HIPE_BIF_WRAPPER__
 #include "bif.h"
+#undef ERL_WANT_HIPE_BIF_WRAPPER__
 #include "big.h"
 #include "dist.h"
 #include "erl_binary.h"
@@ -498,15 +500,37 @@ byte *erts_encode_ext_dist_header_finalize(byte *ext, ErtsAtomCache *cache, Uint
     return ep;
 }
 
-Uint erts_encode_dist_ext_size(Eterm term, Uint32 flags, ErtsAtomCacheMap *acmp)
+int erts_encode_dist_ext_size(Eterm term, Uint32 flags, ErtsAtomCacheMap *acmp,
+			      Uint* szp)
 {
-    Uint sz = 0;
+    Uint sz;
+    if (encode_size_struct_int(NULL, acmp, term, flags, NULL, &sz)) {
+	return -1;
+    } else {
 #ifndef ERTS_DEBUG_USE_DIST_SEP
-    if (!(flags & DFLAG_DIST_HDR_ATOM_CACHE))
+	if (!(flags & DFLAG_DIST_HDR_ATOM_CACHE))
 #endif
-	sz++ /* VERSION_MAGIC */;
-    sz += encode_size_struct2(acmp, term, flags);
-    return sz;
+	    sz++ /* VERSION_MAGIC */;
+
+	*szp += sz;
+	return 0;
+    }
+}
+
+int erts_encode_dist_ext_size_int(Eterm term, struct erts_dsig_send_context* ctx, Uint* szp)
+{
+    Uint sz;
+    if (encode_size_struct_int(&ctx->u.sc, ctx->acmp, term, ctx->flags, &ctx->reds, &sz)) {
+	return -1;
+    } else {
+#ifndef ERTS_DEBUG_USE_DIST_SEP
+	if (!(ctx->flags & DFLAG_DIST_HDR_ATOM_CACHE))
+#endif
+	    sz++ /* VERSION_MAGIC */;
+
+	*szp += sz;
+	return 0;
+    }
 }
 
 Uint erts_encode_ext_size(Eterm term)
@@ -527,19 +551,16 @@ Uint erts_encode_ext_size_ets(Eterm term)
 }
 
 
-void erts_encode_dist_ext(Eterm term, byte **ext, Uint32 flags, ErtsAtomCacheMap *acmp)
+int erts_encode_dist_ext(Eterm term, byte **ext, Uint32 flags, ErtsAtomCacheMap *acmp,
+			  TTBEncodeContext* ctx, Sint* reds)
 {
-    byte *ep = *ext;
-#ifndef ERTS_DEBUG_USE_DIST_SEP
-    if (!(flags & DFLAG_DIST_HDR_ATOM_CACHE))
-#endif
-	*ep++ = VERSION_MAGIC;
-    ep = enc_term(acmp, term, ep, flags, NULL);
-    if (!ep)
-	erl_exit(ERTS_ABORT_EXIT,
-		 "%s:%d:erts_encode_dist_ext(): Internal data structure error\n",
-		 __FILE__, __LINE__);
-    *ext = ep;
+    if (!ctx || !ctx->wstack.wstart) {
+    #ifndef ERTS_DEBUG_USE_DIST_SEP
+	if (!(flags & DFLAG_DIST_HDR_ATOM_CACHE))
+    #endif
+	    *(*ext)++ = VERSION_MAGIC;
+    }
+    return enc_term_int(ctx, acmp, term, *ext, flags, NULL, reds, ext);
 }
 
 void erts_encode_ext(Eterm term, byte **ext)
@@ -1161,7 +1182,8 @@ typedef struct {
     Eterm* hp_end;
     int remaining_n;
     char* remaining_bytes;
-    Eterm* maps_head;
+    Eterm* maps_list;
+    struct dec_term_hamt_placeholder* hamt_list;
 } B2TDecodeContext;
 
 typedef struct {
@@ -1487,7 +1509,8 @@ static BIF_RETTYPE binary_to_term_int(Process* p, Uint32 flags, Eterm bin, Binar
             ctx->u.dc.hp_start = HAlloc(p, ctx->heap_size);
             ctx->u.dc.hp       = ctx->u.dc.hp_start;
             ctx->u.dc.hp_end   = ctx->u.dc.hp_start + ctx->heap_size;
-	    ctx->u.dc.maps_head = NULL;
+	    ctx->u.dc.maps_list = NULL;
+	    ctx->u.dc.hamt_list = NULL;
             ctx->state = B2TDecode;
             /*fall through*/
 	case B2TDecode:
@@ -1740,54 +1763,14 @@ erts_term_to_binary(Process* p, Eterm Term, int level, Uint flags) {
     return erts_term_to_binary_simple(p, Term, size, level, flags);
 }
 
-/* Define for testing */
-/* #define EXTREME_TTB_TRAPPING 1 */
+/* Define EXTREME_TTB_TRAPPING for testing in dist.h */
 
 #ifndef EXTREME_TTB_TRAPPING
-#define TERM_TO_BINARY_LOOP_FACTOR 32
 #define TERM_TO_BINARY_COMPRESS_CHUNK (1 << 18)
 #else
-#define TERM_TO_BINARY_LOOP_FACTOR 1
 #define TERM_TO_BINARY_COMPRESS_CHUNK 10
 #endif
-
-
-typedef enum { TTBSize, TTBEncode, TTBCompress } TTBState;
-typedef struct TTBSizeContext_ {
-    Uint flags;
-    int level;
-    Uint result;
-    Eterm obj;
-    ErtsEStack estack;
-} TTBSizeContext;
-
-typedef struct TTBEncodeContext_ {
-    Uint flags;
-    int level;
-    byte* ep;
-    Eterm obj;
-    ErtsWStack wstack;
-    Binary *result_bin;
-} TTBEncodeContext;
-
-typedef struct {
-    Uint real_size;
-    Uint dest_len;
-    byte *dbytes;
-    Binary *result_bin;
-    Binary *destination_bin;
-    z_stream stream;
-} TTBCompressContext;
-
-typedef struct {
-    int alive;
-    TTBState state;
-    union {
-	TTBSizeContext sc;
-	TTBEncodeContext ec;
-	TTBCompressContext cc;
-    } s;
-} TTBContext;
+#define TERM_TO_BINARY_MEMCPY_FACTOR 8
 
 static void ttb_context_destructor(Binary *context_bin)
 {
@@ -1796,7 +1779,7 @@ static void ttb_context_destructor(Binary *context_bin)
 	context->alive = 0;
 	switch (context->state) {
 	case TTBSize:
-	    DESTROY_SAVED_ESTACK(&context->s.sc.estack);
+	    DESTROY_SAVED_WSTACK(&context->s.sc.wstack);
 	    break;
 	case TTBEncode:
 	    DESTROY_SAVED_WSTACK(&context->s.ec.wstack);
@@ -1864,7 +1847,7 @@ static Eterm erts_term_to_binary_int(Process* p, Eterm Term, int level, Uint fla
 	/* Setup enough to get started */
 	context->state = TTBSize;
 	context->alive = 1;
-	context->s.sc.estack.start = NULL;
+	context->s.sc.wstack.wstart = NULL;
 	context->s.sc.flags = flags;
 	context->s.sc.level = level;
     } else {
@@ -1899,8 +1882,6 @@ static Eterm erts_term_to_binary_int(Process* p, Eterm Term, int level, Uint fla
 		}
 
 		result_bin = erts_bin_nrml_alloc(size);
-		result_bin->flags = 0;
-		result_bin->orig_size = size;
 		erts_refc_init(&result_bin->refc, 0);
 		result_bin->orig_bytes[0] = VERSION_MAGIC;
 		/* Next state immediately, no need to export context */
@@ -1925,7 +1906,6 @@ static Eterm erts_term_to_binary_int(Process* p, Eterm Term, int level, Uint fla
 		}
 		real_size = endp - bytes;
 		result_bin = erts_bin_realloc(context->s.ec.result_bin,real_size);
-		result_bin->orig_size = real_size;
 		level = context->s.ec.level;
 		BUMP_REDS(p, (initial_reds - reds) / TERM_TO_BINARY_LOOP_FACTOR);
 		if (level == 0 || real_size < 6) { /* We are done */
@@ -1962,8 +1942,6 @@ static Eterm erts_term_to_binary_int(Process* p, Eterm Term, int level, Uint fla
 		context->s.cc.result_bin = result_bin;
 
 		result_bin = erts_bin_nrml_alloc(real_size);
-		result_bin->flags = 0;
-		result_bin->orig_size = real_size;
 		erts_refc_init(&result_bin->refc, 0);
 		result_bin->orig_bytes[0] = VERSION_MAGIC;
 
@@ -2005,7 +1983,6 @@ static Eterm erts_term_to_binary_int(Process* p, Eterm Term, int level, Uint fla
 			erl_zlib_deflate_finish(&(context->s.cc.stream));
 			result_bin = erts_bin_realloc(context->s.cc.destination_bin,
 						      context->s.cc.dest_len+6);
-			result_bin->orig_size = context->s.cc.dest_len+6;
 			context->s.cc.destination_bin = NULL;
 			pb = (ProcBin *) HAlloc(p, PROC_BIN_SIZE);
 			pb->thing_word = HEADER_PROC_BIN;
@@ -2327,8 +2304,10 @@ dec_pid(ErtsDistExternal *edep, Eterm** hpp, byte* ep, ErlOffHeap* off_heap, Ete
 #define ENC_TERM ((Eterm) 0)
 #define ENC_ONE_CONS ((Eterm) 1)
 #define ENC_PATCH_FUN_SIZE ((Eterm) 2)
-#define ENC_LAST_ARRAY_ELEMENT ((Eterm) 3)
-
+#define ENC_BIN_COPY ((Eterm) 3)
+#define ENC_MAP_PAIR ((Eterm) 4)
+#define ENC_HASHMAP_NODE ((Eterm) 5)
+#define ENC_LAST_ARRAY_ELEMENT ((Eterm) 6)
 
 static byte*
 enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags,
@@ -2364,6 +2343,9 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep,
 	    WSTACK_RESTORE(s, &ctx->wstack);
 	    ep = ctx->ep;
 	    obj = ctx->obj;
+	    if (is_non_value(obj)) {
+		goto outer_loop;
+	    }
 	}
     }
 
@@ -2387,8 +2369,8 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep,
 
 		obj = CAR(cons);
 		tl = CDR(cons);
-		WSTACK_PUSH(s, is_list(tl) ? ENC_ONE_CONS : ENC_TERM);
-		WSTACK_PUSH(s, tl);
+		WSTACK_PUSH2(s, (is_list(tl) ? ENC_ONE_CONS : ENC_TERM),
+			     tl);
 	    }
 	    break;
 	case ENC_PATCH_FUN_SIZE:
@@ -2401,6 +2383,46 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep,
 		put_int32(ep - size_p, size_p);
 	    }
 	    goto outer_loop;
+	case ENC_BIN_COPY: {
+	    Uint bits = (Uint)obj;
+	    Uint bitoffs = WSTACK_POP(s);
+	    byte* bytes = (byte*) WSTACK_POP(s);
+	    byte* dst = (byte*) WSTACK_POP(s);
+	    if (bits > r * (TERM_TO_BINARY_MEMCPY_FACTOR * 8)) {
+		Uint n = r * TERM_TO_BINARY_MEMCPY_FACTOR;
+		WSTACK_PUSH5(s, (UWord)(dst + n), (UWord)(bytes + n), bitoffs,
+			     ENC_BIN_COPY, bits - 8*n);
+		bits = 8*n;
+		copy_binary_to_buffer(dst, 0, bytes, bitoffs, bits);
+		obj = THE_NON_VALUE;
+		r = 0; /* yield */
+		break;
+	    } else {
+		copy_binary_to_buffer(dst, 0, bytes, bitoffs, bits);
+		r -= bits / (TERM_TO_BINARY_MEMCPY_FACTOR * 8);
+		goto outer_loop;
+	    }
+	}
+	case ENC_MAP_PAIR: {
+	    Uint pairs_left = obj;
+	    Eterm *vptr = (Eterm*) WSTACK_POP(s);
+	    Eterm *kptr = (Eterm*) WSTACK_POP(s);
+
+	    obj = *kptr;
+	    if (--pairs_left > 0) {
+		WSTACK_PUSH4(s, (UWord)(kptr+1), (UWord)(vptr+1),
+			     ENC_MAP_PAIR, pairs_left);
+	    }
+	    WSTACK_PUSH2(s, ENC_TERM, *vptr);
+	    break;
+	}
+	case ENC_HASHMAP_NODE:
+	    if (is_list(obj)) { /* leaf node [K|V] */
+		ptr = list_val(obj);
+		WSTACK_PUSH2(s, ENC_TERM, CDR(ptr));
+		obj = CAR(ptr);
+	    }
+	    break;
 	case ENC_LAST_ARRAY_ELEMENT:
 	    /* obj is the tuple */
 	    {
@@ -2419,17 +2441,16 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep,
 #else
 		Eterm* ptr = (Eterm *) obj;
 #endif
-		WSTACK_PUSH(s, val-1);
 		obj = *ptr++;
-		WSTACK_PUSH(s, (UWord)ptr);
+		WSTACK_PUSH2(s, val-1, (UWord)ptr);
 	    }
 	    break;
 	}
 
     L_jump_start:
 
-	if (ctx && --r == 0) {
-	    *reds = r;
+	if (ctx && --r <= 0) {
+	    *reds = 0;
 	    ctx->obj = obj;
 	    ctx->ep = ep;
 	    WSTACK_SAVE(s, &ctx->wstack);
@@ -2578,39 +2599,59 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep,
 		ep += 4;
 	    }
 	    if (i > 0) {
-		WSTACK_PUSH(s, ENC_LAST_ARRAY_ELEMENT+i-1);
-		WSTACK_PUSH(s, (UWord)ptr);
+		WSTACK_PUSH2(s, ENC_LAST_ARRAY_ELEMENT+i-1, (UWord)ptr);
 	    }
 	    break;
 
 	case MAP_DEF:
-	    {
-		map_t *mp = (map_t*)map_val(obj);
-		Uint size = map_get_size(mp);
+	    if (is_flatmap(obj)) {
+		flatmap_t *mp = (flatmap_t*)flatmap_val(obj);
+		Uint size = flatmap_get_size(mp);
 
 		*ep++ = MAP_EXT;
 		put_int32(size, ep); ep += 4;
 
 		if (size > 0) {
-		    Eterm *kptr = map_get_keys(mp);
-		    Eterm *vptr = map_get_values(mp);
-
-		    for (i = size-1; i >= 1; i--) {
-			WSTACK_PUSH(s, ENC_TERM);
-			WSTACK_PUSH(s, (UWord) vptr[i]);
-			WSTACK_PUSH(s, ENC_TERM);
-			WSTACK_PUSH(s, (UWord) kptr[i]);
-		    }
+		    Eterm *kptr = flatmap_get_keys(mp);
+		    Eterm *vptr = flatmap_get_values(mp);
 
-		    WSTACK_PUSH(s, ENC_TERM);
-		    WSTACK_PUSH(s, (UWord) vptr[0]);
+		    WSTACK_PUSH4(s, (UWord)kptr, (UWord)vptr,
+				 ENC_MAP_PAIR, size);
+		}
+	    } else {
+		Eterm hdr;
+		Uint node_sz;
+		ptr = boxed_val(obj);
+		hdr = *ptr;
+		ASSERT(is_header(hdr));
+		switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+		case HAMT_SUBTAG_HEAD_ARRAY:
+		    *ep++ = MAP_EXT;
+		    ptr++;
+		    put_int32(*ptr, ep); ep += 4;
+		    node_sz = 16;
+		    break;
+		case HAMT_SUBTAG_HEAD_BITMAP:
+		    *ep++ = MAP_EXT;
+		    ptr++;
+		    put_int32(*ptr, ep); ep += 4;
+		    /*fall through*/
+		case HAMT_SUBTAG_NODE_BITMAP:
+		    node_sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+		    ASSERT(node_sz < 17);
+		    break;
+		default:
+		    erl_exit(1, "bad header\r\n");
+		}
 
-		    obj = kptr[0];
-		    goto L_jump_start;
+		ptr++;
+		WSTACK_RESERVE(s, node_sz*2);
+		while(node_sz--) {
+		    WSTACK_FAST_PUSH(s, ENC_HASHMAP_NODE);
+		    WSTACK_FAST_PUSH(s, *ptr++);
 		}
 	    }
 	    break;
-
 	case FLOAT_DEF:
 	    GET_DOUBLE(obj, f);
 	    if (dflags & DFLAG_NEW_FLOATS) {
@@ -2644,6 +2685,7 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep,
 		Uint bitoffs;
 		Uint bitsize;
 		byte* bytes;
+		byte* data_dst;
 
 		ERTS_GET_BINARY_BYTES(obj, bytes, bitoffs, bitsize);
 		if (dflags & DFLAG_INTERNAL_TAGS) {
@@ -2689,7 +2731,7 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep,
 		    j = binary_size(obj);
 		    put_int32(j, ep);
 		    ep += 4;
-		    copy_binary_to_buffer(ep, 0, bytes, bitoffs, 8*j);
+		    data_dst = ep;
 		    ep += j;
 		} else if (dflags & DFLAG_BIT_BINARIES) {
 		    /* Bit-level binary. */
@@ -2699,7 +2741,7 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep,
 		    ep += 4;
 		    *ep++ = bitsize;
 		    ep[j] = 0;	/* Zero unused bits at end of binary */
-		    copy_binary_to_buffer(ep, 0, bytes, bitoffs, 8*j+bitsize);
+		    data_dst = ep;
 		    ep += j + 1;
 		} else {
 		    /*
@@ -2713,11 +2755,18 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep,
 		    put_int32((j+1), ep);
 		    ep += 4;
 		    ep[j] = 0;	/* Zero unused bits at end of binary */
-		    copy_binary_to_buffer(ep, 0, bytes, bitoffs, 8*j+bitsize);
+		    data_dst = ep;
 		    ep += j+1;
 		    *ep++ = SMALL_INTEGER_EXT;
 		    *ep++ = bitsize;
 		}
+		if (ctx && j > r * TERM_TO_BINARY_MEMCPY_FACTOR) {
+		    WSTACK_PUSH5(s, (UWord)data_dst, (UWord)bytes, bitoffs,
+				 ENC_BIN_COPY, 8*j + bitsize);
+		} else {
+		    copy_binary_to_buffer(data_dst, 0, bytes, bitoffs,
+					  8 * j + bitsize);
+		}
 	    }
 	    break;
 	case EXPORT_DEF:
@@ -2746,13 +2795,12 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep,
 	case FUN_DEF:
 	    {
 		ErlFunThing* funp = (ErlFunThing *) fun_val(obj);
+		int ei;
 
 		if ((dflags & DFLAG_NEW_FUN_TAGS) != 0) {
-		    int ei;
-
 		    *ep++ = NEW_FUN_EXT;
-		    WSTACK_PUSH(s, ENC_PATCH_FUN_SIZE);
-		    WSTACK_PUSH(s, (UWord) ep); /* Position for patching in size */
+		    WSTACK_PUSH2(s, ENC_PATCH_FUN_SIZE,
+				 (UWord) ep); /* Position for patching in size */
 		    ep += 4;
 		    *ep = funp->arity;
 		    ep += 1;
@@ -2766,16 +2814,6 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep,
 		    ep = enc_term(acmp, make_small(funp->fe->old_index), ep, dflags, off_heap);
 		    ep = enc_term(acmp, make_small(funp->fe->old_uniq), ep, dflags, off_heap);
 		    ep = enc_pid(acmp, funp->creator, ep, dflags);
-
-		fun_env:
-		    for (ei = funp->num_free-1; ei > 0; ei--) {
-			WSTACK_PUSH(s, ENC_TERM);
-			WSTACK_PUSH(s, (UWord) funp->env[ei]);
-		    }
-		    if (funp->num_free != 0) {
-			obj = funp->env[0];
-			goto L_jump_start;
-		    }
 		} else {
 		    /*
 		     * Communicating with an obsolete erl_interface or
@@ -2807,7 +2845,13 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep,
 		    *ep++ = SMALL_TUPLE_EXT;
 		    put_int8(funp->num_free, ep);
 		    ep += 1;
-		    goto fun_env;
+		}
+		for (ei = funp->num_free-1; ei > 0; ei--) {
+		    WSTACK_PUSH2(s, ENC_TERM, (UWord) funp->env[ei]);
+		}
+		if (funp->num_free != 0) {
+		    obj = funp->env[0];
+		    goto L_jump_start;
 		}
 	    }
 	    break;
@@ -2889,9 +2933,19 @@ undo_offheap_in_area(ErlOffHeap* off_heap, Eterm* start, Eterm* end)
 #endif /* DEBUG */
 }
 
+struct dec_term_hamt_placeholder
+{
+    struct dec_term_hamt_placeholder* next;
+    Eterm* objp; /* write result here */
+    Uint size;   /* nr of leafs */
+    Eterm leafs[1];
+};
+
+#define DEC_TERM_HAMT_PLACEHOLDER_SIZE \
+    (offsetof(struct dec_term_hamt_placeholder, leafs) / sizeof(Eterm))
 
 /* Decode term from external format into *objp.
-** On failure return NULL and (R13B04) *hpp will be unchanged.
+** On failure return NULL and *hpp will be unchanged.
 */
 static byte*
 dec_term(ErtsDistExternal *edep, Eterm** hpp, byte* ep, ErlOffHeap* off_heap,
@@ -2901,7 +2955,8 @@ dec_term(ErtsDistExternal *edep, Eterm** hpp, byte* ep, ErlOffHeap* off_heap,
     int n;
     ErtsAtomEncoding char_enc;
     register Eterm* hp;        /* Please don't take the address of hp */
-    Eterm *maps_head;   /* for validation of maps */
+    Eterm *maps_list;   /* for preprocessing of small maps */
+    struct dec_term_hamt_placeholder* hamt_list;   /* for preprocessing of big maps */
     Eterm* next;
     SWord reds;
 
@@ -2911,7 +2966,8 @@ dec_term(ErtsDistExternal *edep, Eterm** hpp, byte* ep, ErlOffHeap* off_heap,
         next     = ctx->u.dc.next;
         ep       = ctx->u.dc.ep;
         hpp      = &ctx->u.dc.hp;
-	maps_head = ctx->u.dc.maps_head;
+	maps_list = ctx->u.dc.maps_list;
+        hamt_list = ctx->u.dc.hamt_list;
 
         if (ctx->state != B2TDecode) {
             int n_limit = reds;
@@ -2992,7 +3048,8 @@ dec_term(ErtsDistExternal *edep, Eterm** hpp, byte* ep, ErlOffHeap* off_heap,
         reds = ERTS_SWORD_MAX;
         next = objp;
         *next = (Eterm) (UWord) NULL;
-	maps_head = NULL;
+	maps_list = NULL;
+        hamt_list = NULL;
     }
     hp = *hpp;
 
@@ -3389,8 +3446,6 @@ dec_term_atom_common:
 		} else {
 		    Binary* dbin = erts_bin_nrml_alloc(n);
 		    ProcBin* pb;
-		    dbin->flags = 0;
-		    dbin->orig_size = n;
 		    erts_refc_init(&dbin->refc, 1);
 		    pb = (ProcBin *) hp;
 		    hp += PROC_BIN_SIZE;
@@ -3398,6 +3453,7 @@ dec_term_atom_common:
 		    pb->size = n;
 		    pb->next = off_heap->first;
 		    off_heap->first = (struct erl_off_heap_header*)pb;
+                    OH_OVERHEAD(off_heap, pb->size / sizeof(Eterm));
 		    pb->val = dbin;
 		    pb->bytes = (byte*) dbin->orig_bytes;
 		    pb->flags = 0;
@@ -3443,14 +3499,13 @@ dec_term_atom_common:
 		    Binary* dbin = erts_bin_nrml_alloc(n);
 		    ProcBin* pb;
 
-		    dbin->flags = 0;
-		    dbin->orig_size = n;
 		    erts_refc_init(&dbin->refc, 1);
 		    pb = (ProcBin *) hp;
 		    pb->thing_word = HEADER_PROC_BIN;
 		    pb->size = n;
 		    pb->next = off_heap->first;
 		    off_heap->first = (struct erl_off_heap_header*)pb;
+                    OH_OVERHEAD(off_heap, pb->size / sizeof(Eterm));
 		    pb->val = dbin;
 		    pb->bytes = (byte*) dbin->orig_bytes;
 		    pb->flags = 0;
@@ -3532,46 +3587,67 @@ dec_term_atom_common:
 	    break;
 	case MAP_EXT:
 	    {
-		map_t *mp;
 		Uint32 size,n;
 		Eterm *kptr,*vptr;
 		Eterm keys;
 
 		size = get_int32(ep); ep += 4;
 
-		keys  = make_tuple(hp);
-		*hp++ = make_arityval(size);
-		hp   += size;
-		kptr = hp - 1;
-
-		mp    = (map_t*)hp;
-		hp   += MAP_HEADER_SIZE;
-		hp   += size;
-		vptr = hp - 1;
-
-		/* kptr, last word for keys
-		 * vptr, last word for values
-		 */
-
-		/*
-		 * Use thing_word to link through decoded maps.
-		 * The list of maps is for later validation.
-		 */
-
-		mp->thing_word = (Eterm) COMPRESS_POINTER(maps_head);
-		maps_head      = (Eterm *) mp;
-
-		mp->size       = size;
-		mp->keys       = keys;
-		*objp          = make_map(mp);
-
-		for (n = size; n; n--) {
-		    *vptr = (Eterm) COMPRESS_POINTER(next);
-		    *kptr = (Eterm) COMPRESS_POINTER(vptr);
-		    next  = kptr;
-		    vptr--;
-		    kptr--;
-		}
+                if (size <= MAP_SMALL_MAP_LIMIT) {
+                    flatmap_t *mp;
+
+                    keys  = make_tuple(hp);
+                    *hp++ = make_arityval(size);
+                    hp   += size;
+                    kptr = hp - 1;
+
+                    mp    = (flatmap_t*)hp;
+                    hp   += MAP_HEADER_FLATMAP_SZ;
+                    hp   += size;
+                    vptr = hp - 1;
+
+                    /* kptr, last word for keys
+                     * vptr, last word for values
+                     */
+
+                    /*
+                     * Use thing_word to link through decoded maps.
+                     * The list of maps is for later validation.
+                     */
+
+                    mp->thing_word = (Eterm) COMPRESS_POINTER(maps_list);
+                    maps_list      = (Eterm *) mp;
+
+                    mp->size       = size;
+                    mp->keys       = keys;
+                    *objp          = make_flatmap(mp);
+
+                    for (n = size; n; n--) {
+                        *vptr = (Eterm) COMPRESS_POINTER(next);
+                        *kptr = (Eterm) COMPRESS_POINTER(vptr);
+                        next  = kptr;
+                        vptr--;
+                        kptr--;
+                    }
+                }
+                else {  /* Make hamt */
+                    struct dec_term_hamt_placeholder* holder =
+                        (struct dec_term_hamt_placeholder*) hp;
+
+                    holder->next = hamt_list;
+                    hamt_list    = holder;
+                    holder->objp = objp;
+                    holder->size = size;
+
+                    hp += DEC_TERM_HAMT_PLACEHOLDER_SIZE;
+
+                    for (n = size; n; n--) {
+                        CDR(hp) = (Eterm) COMPRESS_POINTER(next);
+                        CAR(hp) = (Eterm) COMPRESS_POINTER(&CDR(hp));
+                        next = &CAR(hp);
+                        hp += 2;
+                    }
+                }
 	    }
 	    break;
 	case NEW_FUN_EXT:
@@ -3749,6 +3825,7 @@ dec_term_atom_common:
 		hp += PROC_BIN_SIZE;
 		pb->next = off_heap->first;
 		off_heap->first = (struct erl_off_heap_header*)pb;
+                OH_OVERHEAD(off_heap, pb->size / sizeof(Eterm));
 		pb->flags = 0;
 		*objp = make_binary(pb);
 		break;
@@ -3766,6 +3843,7 @@ dec_term_atom_common:
 		hp += PROC_BIN_SIZE;
 		pb->next = off_heap->first;
 		off_heap->first = (struct erl_off_heap_header*)pb;
+                OH_OVERHEAD(off_heap, pb->size / sizeof(Eterm));
 		pb->flags = 0;
 
 		sub = (ErlSubBin*)hp;
@@ -3792,7 +3870,8 @@ dec_term_atom_common:
                     ctx->u.dc.ep = ep;
                     ctx->u.dc.next = next;
                     ctx->u.dc.hp = hp;
-		    ctx->u.dc.maps_head = maps_head;
+		    ctx->u.dc.maps_list = maps_list;
+		    ctx->u.dc.hamt_list = hamt_list;
                     ctx->reds = 0;
                     return NULL;
                 }
@@ -3807,12 +3886,40 @@ dec_term_atom_common:
      * - done here for when we know it is complete.
      */
 
-    while (maps_head) {
-	next  = (Eterm *)(EXPAND_POINTER(*maps_head));
-	*maps_head = MAP_HEADER;
-	if (!erts_validate_and_sort_map((map_t*)maps_head))
+    while (maps_list) {
+	next  = (Eterm *)(EXPAND_POINTER(*maps_list));
+	*maps_list = MAP_HEADER_FLATMAP;
+	if (!erts_validate_and_sort_flatmap((flatmap_t*)maps_list))
 	    goto error;
-	maps_head  = next;
+	maps_list  = next;
+    }
+
+    /* Iterate through all the hamts and build tree nodes.
+     */
+    if (hamt_list) {
+	ErtsHeapFactory factory;
+
+	factory.p = NULL;
+        factory.hp = hp;
+	/* We assume heap will suffice (see hashmap_over_estimated_heap_size) */
+
+        do {
+	    struct dec_term_hamt_placeholder* hamt = hamt_list;
+	    *hamt->objp = erts_hashmap_from_array(&factory,
+						  hamt->leafs,
+						  hamt->size,
+						  1);
+	    if (is_non_value(*hamt->objp))
+		goto error;
+
+	    hamt_list = hamt->next;
+
+	    /* Yes, we waste a couple of heap words per hamt
+	       for the temporary placeholder */
+	    *(Eterm*)hamt = make_pos_bignum_header(DEC_TERM_HAMT_PLACEHOLDER_SIZE-1);
+        } while (hamt_list);
+
+	hp = factory.hp;
     }
 
     if (ctx) {
@@ -3855,51 +3962,35 @@ static int
 encode_size_struct_int(TTBSizeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj,
 		       unsigned dflags, Sint *reds, Uint *res)
 {
-    DECLARE_ESTACK(s);
+    DECLARE_WSTACK(s);
     Uint m, i, arity;
     Uint result = 0;
     Sint r = 0;
 
     if (ctx) {
-	ESTACK_CHANGE_ALLOCATOR(s, ERTS_ALC_T_SAVED_ESTACK);
+	WSTACK_CHANGE_ALLOCATOR(s, ERTS_ALC_T_SAVED_ESTACK);
 	r = *reds;
 
-	if (ctx->estack.start) { /* restore saved stack */
-	    ESTACK_RESTORE(s, &ctx->estack);
+	if (ctx->wstack.wstart) { /* restore saved stack */
+	    WSTACK_RESTORE(s, &ctx->wstack);
 	    result = ctx->result;
 	    obj = ctx->obj;
 	}
     }
 
-    goto L_jump_start;
+#define LIST_TAIL_OP ((0 << _TAG_PRIMARY_SIZE) | TAG_PRIMARY_HEADER)
+#define TERM_ARRAY_OP(N) (((N) << _TAG_PRIMARY_SIZE) | TAG_PRIMARY_HEADER)
+#define TERM_ARRAY_OP_DEC(OP) ((OP) - (1 << _TAG_PRIMARY_SIZE))
+
+
+    for (;;) {
+	ASSERT(!is_header(obj));
 
- outer_loop:
-    while (!ESTACK_ISEMPTY(s)) {
-	obj = ESTACK_POP(s);
-    handle_popped_obj:
-	if (is_list(obj)) {
-	    Eterm* cons = list_val(obj);
-	    Eterm tl;
-
-	    tl = CDR(cons);
-	    obj = CAR(cons);
-	    ESTACK_PUSH(s, tl);
-	} else if (is_nil(obj)) {
-	    result++;
-	    goto outer_loop;
-	} else {
-	    /*
-	     * Other term (in the tail of a non-proper list or
-	     * in a fun's environment).
-	     */
-	}
-    
-    L_jump_start:
 	if (ctx && --r == 0) {
 	    *reds = r;
 	    ctx->obj = obj;
 	    ctx->result = result;
-	    ESTACK_SAVE(s, &ctx->estack);
+	    WSTACK_SAVE(s, &ctx->wstack);
 	    return -1;
 	}
 	switch (tag_val_def(obj)) {
@@ -3982,70 +4073,79 @@ encode_size_struct_int(TTBSizeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj,
 		result += m + 2 + 1;
 	    } else {
 		result += 5;
-		goto handle_popped_obj;
+		WSTACK_PUSH2(s, (UWord)CDR(list_val(obj)), (UWord)LIST_TAIL_OP);
+		obj = CAR(list_val(obj));
+		continue; /* big loop */
 	    }
 	    break;
 	case TUPLE_DEF:
 	    {
 		Eterm* ptr = tuple_val(obj);
-		Uint i;
 		arity = arityval(*ptr);
 		if (arity <= 0xff) {
 		    result += 1 + 1;
 		} else {
 		    result += 1 + 4;
 		}
-		for (i = 1; i <= arity; ++i) {
-		    if (is_list(ptr[i])) {
-			if ((m = is_string(obj)) && (m < MAX_STRING_LEN)) {
-			    result += m + 2 + 1;
-			} else {
-			    result += 5;
-			}
-		    }
-		    ESTACK_PUSH(s,ptr[i]);
+		if (arity > 1) {
+		    WSTACK_PUSH2(s, (UWord) (ptr + 2),
+				    (UWord) TERM_ARRAY_OP(arity-1));
 		}
-		goto outer_loop;
+                else if (arity == 0) {
+		    break;
+                }
+		obj = ptr[1];
+		continue; /* big loop */
 	    }
-	    break;
 	case MAP_DEF:
-	    {
-		map_t *mp = (map_t*)map_val(obj);
-		Uint size = map_get_size(mp);
-		Uint i;
-		Eterm *ptr;
+	    if (is_flatmap(obj)) {
+		flatmap_t *mp = (flatmap_t*)flatmap_val(obj);
+		Uint size = flatmap_get_size(mp);
 
 		result += 1 + 4; /* tag + 4 bytes size */
 
-		/* push values first */
-		ptr = map_get_values(mp);
-		i   = size;
-		while(i--) {
-		    if (is_list(*ptr)) {
-			if ((m = is_string(*ptr)) && (m < MAX_STRING_LEN)) {
-			    result += m + 2 + 1;
-			} else {
-			    result += 5;
-			}
-		    }
-		    ESTACK_PUSH(s,*ptr);
-		    ++ptr;
+                if (size) {
+		    WSTACK_PUSH4(s, (UWord) flatmap_get_values(mp),
+				    (UWord) TERM_ARRAY_OP(size),
+		                    (UWord) flatmap_get_keys(mp),
+				    (UWord) TERM_ARRAY_OP(size));
+		}
+	    } else {
+		Eterm *ptr;
+		Eterm hdr;
+		Uint node_sz;
+		ptr = boxed_val(obj);
+		hdr = *ptr;
+		ASSERT(is_header(hdr));
+		switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+		case HAMT_SUBTAG_HEAD_ARRAY:
+		    ptr++;
+		    node_sz = 16;
+		    result += 1 + 4; /* tag + 4 bytes size */
+		    break;
+		case HAMT_SUBTAG_HEAD_BITMAP:
+		    ptr++;
+		    result += 1 + 4; /* tag + 4 bytes size */
+		    /*fall through*/
+		case HAMT_SUBTAG_NODE_BITMAP:
+		    node_sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+		    ASSERT(node_sz < 17);
+		    break;
+		default:
+		    erl_exit(1, "bad header\r\n");
 		}
 
-		ptr = map_get_keys(mp);
-		i   = size;
-		while(i--) {
-		    if (is_list(*ptr)) {
-			if ((m = is_string(*ptr)) && (m < MAX_STRING_LEN)) {
-			    result += m + 2 + 1;
-			} else {
-			    result += 5;
-			}
+		ptr++;
+		WSTACK_RESERVE(s, node_sz*2);
+		while(node_sz--) {
+                    if (is_list(*ptr)) {
+			WSTACK_FAST_PUSH(s, CAR(list_val(*ptr)));
+			WSTACK_FAST_PUSH(s, CDR(list_val(*ptr)));
+                    } else {
+			WSTACK_FAST_PUSH(s, *ptr);
 		    }
-		    ESTACK_PUSH(s,*ptr);
-		    ++ptr;
+		    ptr++;
 		}
-		goto outer_loop;
 	    }
 	    break;
 	case FLOAT_DEF:
@@ -4098,25 +4198,13 @@ encode_size_struct_int(TTBSizeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj,
 		    result += 2 * (1 + 4); /* Index + Uniq */
 		    result += 1 + (funp->num_free < 0x100 ? 1 : 4);
 		}
-		for (i = 1; i < funp->num_free; i++) {
-		    obj = funp->env[i];
-
-		    if (is_not_list(obj)) {
-			/* Push any non-list terms on the stack */
-			ESTACK_PUSH(s, obj);
-		    } else {
-			/* Lists must be handled specially. */
-			if ((m = is_string(obj)) && (m < MAX_STRING_LEN)) {
-			    result += m + 2 + 1;
-			} else {
-			    result += 5;
-			    ESTACK_PUSH(s, obj);
-			}
-		    }
+		if (funp->num_free > 1) {
+		    WSTACK_PUSH2(s, (UWord) (funp->env + 1),
+				    (UWord) TERM_ARRAY_OP(funp->num_free-1));
 		}
 		if (funp->num_free != 0) {
 		    obj = funp->env[0];
-		    goto L_jump_start;
+		    continue; /* big loop */
 		}
 		break;
 	    }
@@ -4139,17 +4227,48 @@ encode_size_struct_int(TTBSizeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj,
 	    erl_exit(1,"Internal data structure error (in encode_size_struct2)%x\n",
 		     obj);
 	}
+
+	if (WSTACK_ISEMPTY(s)) {
+	    break;
+	}
+	obj = (Eterm) WSTACK_POP(s);
+
+        if (is_header(obj)) {
+            switch (obj) {
+	    case LIST_TAIL_OP:
+		obj = (Eterm) WSTACK_POP(s);
+		if (is_list(obj)) {
+		    Eterm* cons = list_val(obj);
+
+		    WSTACK_PUSH2(s, (UWord)CDR(cons), (UWord)LIST_TAIL_OP);
+		    obj = CAR(cons);
+		}
+		break;
+
+	    case TERM_ARRAY_OP(1):
+		obj = *(Eterm*)WSTACK_POP(s);
+		break;
+	    default: { /* TERM_ARRAY_OP(N) when N > 1 */
+		Eterm* ptr = (Eterm*) WSTACK_POP(s);
+		WSTACK_PUSH2(s, (UWord) (ptr+1),
+			        (UWord) TERM_ARRAY_OP_DEC(obj));
+		obj = *ptr;
+	    }
+	    }
+	}
     }
 
-    DESTROY_ESTACK(s);
+    WSTACK_DESTROY(s);
     if (ctx) {
-	ASSERT(ctx->estack.start == NULL);
+	ASSERT(ctx->wstack.wstart == NULL);
 	*reds = r;
     }
     *res = result;
     return 0;
 }
 
+
+
 static Sint
 decoded_size(byte *ep, byte* endp, int internal_tags, B2TContext* ctx)
 {
@@ -4343,7 +4462,11 @@ init_done:
 	    n = get_int32(ep);
 	    ep += 4;
 	    ADDTERMS(2*n);
-	    heap_size += 3 + n + 1 + n;
+            if (n <= MAP_SMALL_MAP_LIMIT) {
+                heap_size += 3 + n + 1 + n;
+            } else {
+                heap_size += hashmap_over_estimated_heap_size(n);
+            }
 	    break;
 	case STRING_EXT:
 	    CHKSIZE(2);
diff --git a/erts/emulator/beam/external.h b/erts/emulator/beam/external.h
index 10565f67e5..50fcfa04d6 100644
--- a/erts/emulator/beam/external.h
+++ b/erts/emulator/beam/external.h
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 1996-2013. All Rights Reserved.
+ * Copyright Ericsson AB 1996-2014. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -150,6 +150,7 @@ typedef struct {
     Uint extsize;
 } ErtsBinary2TermState;
 
+
 /* -------------------------------------------------------------------------- */
 
 void erts_init_atom_cache_map(ErtsAtomCacheMap *);
@@ -160,8 +161,12 @@ void erts_finalize_atom_cache_map(ErtsAtomCacheMap *, Uint32);
 Uint erts_encode_ext_dist_header_size(ErtsAtomCacheMap *);
 byte *erts_encode_ext_dist_header_setup(byte *, ErtsAtomCacheMap *);
 byte *erts_encode_ext_dist_header_finalize(byte *, ErtsAtomCache *, Uint32);
-Uint erts_encode_dist_ext_size(Eterm, Uint32, ErtsAtomCacheMap *);
-void erts_encode_dist_ext(Eterm, byte **, Uint32, ErtsAtomCacheMap *);
+struct erts_dsig_send_context;
+int erts_encode_dist_ext_size(Eterm, Uint32, ErtsAtomCacheMap*, Uint* szp);
+int erts_encode_dist_ext_size_int(Eterm term, struct erts_dsig_send_context* ctx, Uint* szp);
+struct TTBEncodeContext_;
+int erts_encode_dist_ext(Eterm, byte **, Uint32, ErtsAtomCacheMap *,
+			  struct TTBEncodeContext_ *, Sint* reds);
 
 Uint erts_encode_ext_size(Eterm);
 Uint erts_encode_ext_size_2(Eterm, unsigned);
diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h
index 32a2dc43e8..340c7033ab 100644
--- a/erts/emulator/beam/global.h
+++ b/erts/emulator/beam/global.h
@@ -41,6 +41,7 @@
 #include "error.h"
 #include "erl_utils.h"
 #include "erl_port.h"
+#include "erl_gc.h"
 
 struct enif_environment_t /* ErlNifEnv */
 {
@@ -51,6 +52,7 @@ struct enif_environment_t /* ErlNifEnv */
     ErlHeapFragment* heap_frag;
     int fpe_was_unmasked;
     struct enif_tmp_obj_t* tmp_obj_list;
+    int exception_thrown; /* boolean */
 };
 extern void erts_pre_nif(struct enif_environment_t*, Process*,
 			 struct erl_module_nif*);
@@ -347,8 +349,6 @@ extern Uint display_items;	/* no of items to display in traces etc */
 extern int erts_backtrace_depth;
 extern erts_smp_atomic32_t erts_max_gen_gcs;
 
-extern int erts_disable_tolerant_timeofday;
-
 extern int bif_reductions;      /* reductions + fcalls (when doing call_bif) */
 extern int stackdump_on_exit;
 
@@ -371,16 +371,17 @@ extern int stackdump_on_exit;
  * DESTROY_ESTACK(Stack)
  */
 
-typedef struct {
+typedef struct ErtsEStack_ {
     Eterm* start;
     Eterm* sp;
     Eterm* end;
+    Eterm* edefault;
     ErtsAlcType_t alloc_type;
 }ErtsEStack;
 
 #define DEF_ESTACK_SIZE (16)
 
-void erl_grow_estack(ErtsEStack*, Eterm* def_stack);
+void erl_grow_estack(ErtsEStack*, Uint need);
 #define ESTK_CONCAT(a,b) a##b
 #define ESTK_DEF_STACK(s) ESTK_CONCAT(s,_default_estack)
 
@@ -390,22 +391,23 @@ void erl_grow_estack(ErtsEStack*, Eterm* def_stack);
         ESTK_DEF_STACK(s),  /* start */ 		\
         ESTK_DEF_STACK(s),  /* sp */			\
         ESTK_DEF_STACK(s) + DEF_ESTACK_SIZE, /* end */	\
+        ESTK_DEF_STACK(s),  /* default */		\
         ERTS_ALC_T_ESTACK /* alloc_type */		\
     }
 
 #define ESTACK_CHANGE_ALLOCATOR(s,t)					\
 do {									\
-    if (s.start != ESTK_DEF_STACK(s)) {					\
+    if ((s).start != ESTK_DEF_STACK(s)) {				\
 	erl_exit(1, "Internal error - trying to change allocator "	\
 		 "type of active estack\n");				\
     }									\
-    s.alloc_type = (t);							\
+    (s).alloc_type = (t);						\
  } while (0)
 
 #define DESTROY_ESTACK(s)				\
 do {							\
-    if (s.start != ESTK_DEF_STACK(s)) {			\
-	erts_free(s.alloc_type, s.start); 		\
+    if ((s).start != ESTK_DEF_STACK(s)) {		\
+	erts_free((s).alloc_type, (s).start); 		\
     }							\
 } while(0)
 
@@ -416,16 +418,17 @@ do {							\
  */
 #define ESTACK_SAVE(s,dst)\
 do {\
-    if (s.start == ESTK_DEF_STACK(s)) {\
+    if ((s).start == ESTK_DEF_STACK(s)) {\
 	UWord _wsz = ESTACK_COUNT(s);\
-	(dst)->start = erts_alloc(s.alloc_type,\
+	(dst)->start = erts_alloc((s).alloc_type,\
 				  DEF_ESTACK_SIZE * sizeof(Eterm));\
-	memcpy((dst)->start, s.start,_wsz*sizeof(Eterm));\
+	memcpy((dst)->start, (s).start,_wsz*sizeof(Eterm));\
 	(dst)->sp = (dst)->start + _wsz;\
 	(dst)->end = (dst)->start + DEF_ESTACK_SIZE;\
-	(dst)->alloc_type = s.alloc_type;\
+        (dst)->edefault = NULL;\
+	(dst)->alloc_type = (s).alloc_type;\
     } else\
-        *(dst) = s;\
+        *(dst) = (s);\
  } while (0)
 
 #define DESTROY_SAVED_ESTACK(estack)\
@@ -444,72 +447,114 @@ do {\
  */
 #define ESTACK_RESTORE(s, src)			\
 do {						\
-    ASSERT(s.start == ESTK_DEF_STACK(s));	\
-    s = *(src);  /* struct copy */		\
+    ASSERT((s).start == ESTK_DEF_STACK(s));	\
+    (s) = *(src);  /* struct copy */		\
     (src)->start = NULL;			\
-    ASSERT(s.sp >= s.start);			\
-    ASSERT(s.sp <= s.end);			\
+    ASSERT((s).sp >= (s).start);		\
+    ASSERT((s).sp <= (s).end);			\
 } while (0)
 
-#define ESTACK_IS_STATIC(s) (s.start == ESTK_DEF_STACK(s)))
+#define ESTACK_IS_STATIC(s) ((s).start == ESTK_DEF_STACK(s))
 
-#define ESTACK_PUSH(s, x)				\
-do {							\
-    if (s.sp == s.end) {				\
-	erl_grow_estack(&s, ESTK_DEF_STACK(s)); 	\
-    }							\
-    *s.sp++ = (x);					\
+#define ESTACK_PUSH(s, x)			\
+do {						\
+    if ((s).sp == (s).end) {			\
+	erl_grow_estack(&(s), 1); 		\
+    }						\
+    *(s).sp++ = (x);				\
 } while(0)
 
 #define ESTACK_PUSH2(s, x, y)			\
 do {						\
-    if (s.sp > s.end - 2) {			\
-	erl_grow_estack(&s, ESTK_DEF_STACK(s)); \
+    if ((s).sp > (s).end - 2) {			\
+	erl_grow_estack(&(s), 2);		\
     }						\
-    *s.sp++ = (x);				\
-    *s.sp++ = (y);				\
+    *(s).sp++ = (x);				\
+    *(s).sp++ = (y);				\
 } while(0)
 
 #define ESTACK_PUSH3(s, x, y, z)		\
 do {						\
-    if (s.sp > s.end - 3) {			\
-	erl_grow_estack(&s, ESTK_DEF_STACK(s)); \
+    if ((s).sp > (s).end - 3) {			\
+	erl_grow_estack(&s, 3); 		\
     }						\
-    *s.sp++ = (x);				\
-    *s.sp++ = (y);				\
-    *s.sp++ = (z);				\
+    *(s).sp++ = (x);				\
+    *(s).sp++ = (y);				\
+    *(s).sp++ = (z);				\
 } while(0)
 
-#define ESTACK_COUNT(s) (s.sp - s.start)
-#define ESTACK_ISEMPTY(s) (s.sp == s.start)
-#define ESTACK_POP(s) (*(--s.sp))
+#define ESTACK_PUSH4(s, E1, E2, E3, E4)		\
+do {						\
+    if ((s).sp > (s).end - 4) {			\
+	erl_grow_estack(&s, 4);                 \
+    }						\
+    *(s).sp++ = (E1);				\
+    *(s).sp++ = (E2);				\
+    *(s).sp++ = (E3);				\
+    *(s).sp++ = (E4);				\
+} while(0)
+
+#define ESTACK_RESERVE(s, push_cnt)             \
+do {					        \
+    if ((s).sp > (s).end - (push_cnt)) {	\
+	erl_grow_estack(&(s), (push_cnt));	\
+    }					        \
+} while(0)
+
+/* Must be preceded by ESTACK_RESERVE */
+#define ESTACK_FAST_PUSH(s, x)				\
+do {							\
+    ASSERT((s).sp < (s).end);                           \
+    *s.sp++ = (x);					\
+} while(0)
+
+#define ESTACK_COUNT(s) ((s).sp - (s).start)
+#define ESTACK_ISEMPTY(s) ((s).sp == (s).start)
+#define ESTACK_POP(s) (*(--(s).sp))
 
 
 /*
  * WSTACK: same as ESTACK but with UWord instead of Eterm
  */
 
-typedef struct {
+typedef struct ErtsWStack_ {
     UWord* wstart;
     UWord* wsp;
     UWord* wend;
+    UWord* wdefault;
     ErtsAlcType_t alloc_type;
 }ErtsWStack;
 
 #define DEF_WSTACK_SIZE (16)
 
-void erl_grow_wstack(ErtsWStack*, UWord* def_stack);
+void erl_grow_wstack(ErtsWStack*, Uint need);
 #define WSTK_CONCAT(a,b) a##b
 #define WSTK_DEF_STACK(s) WSTK_CONCAT(s,_default_wstack)
 
-#define DECLARE_WSTACK(s)				\
+#define WSTACK_DECLARE(s)				\
     UWord WSTK_DEF_STACK(s)[DEF_WSTACK_SIZE];		\
     ErtsWStack s = {					\
         WSTK_DEF_STACK(s),  /* wstart */ 		\
         WSTK_DEF_STACK(s),  /* wsp */			\
         WSTK_DEF_STACK(s) + DEF_WSTACK_SIZE, /* wend */	\
+        WSTK_DEF_STACK(s),  /* wdflt */ 		\
         ERTS_ALC_T_ESTACK /* alloc_type */		\
     }
+#define DECLARE_WSTACK WSTACK_DECLARE
+
+typedef struct ErtsDynamicWStack_ {
+    UWord default_stack[DEF_WSTACK_SIZE];
+    ErtsWStack ws;
+}ErtsDynamicWStack;
+
+#define WSTACK_INIT(dwsp, ALC_TYPE)                               \
+do {	 	                                                  \
+    (dwsp)->ws.wstart   = (dwsp)->default_stack;                  \
+    (dwsp)->ws.wsp      = (dwsp)->default_stack;                  \
+    (dwsp)->ws.wend     = (dwsp)->default_stack + DEF_WSTACK_SIZE;\
+    (dwsp)->ws.wdefault = (dwsp)->default_stack;                  \
+    (dwsp)->ws.alloc_type = ALC_TYPE;                             \
+} while (0)
 
 #define WSTACK_CHANGE_ALLOCATOR(s,t)					\
 do {									\
@@ -520,13 +565,20 @@ do {									\
     s.alloc_type = (t);							\
  } while (0)
 
-#define DESTROY_WSTACK(s)				\
+#define WSTACK_DESTROY(s)				\
 do {							\
-    if (s.wstart != WSTK_DEF_STACK(s)) {		\
+    if (s.wstart != s.wdefault) {		        \
 	erts_free(s.alloc_type, s.wstart); 		\
     }							\
 } while(0)
+#define DESTROY_WSTACK WSTACK_DESTROY
 
+#define WSTACK_DEBUG(s) \
+    do { \
+	fprintf(stderr, "wstack size   = %ld\r\n", s.wsp - s.wstart); \
+	fprintf(stderr, "wstack wstart = %p\r\n", s.wstart); \
+	fprintf(stderr, "wstack wsp    = %p\r\n", s.wsp); \
+    } while(0)
 
 /*
  * Do not free the stack after this, it may have pointers into what
@@ -541,6 +593,7 @@ do {\
 	memcpy((dst)->wstart, s.wstart,_wsz*sizeof(UWord));\
 	(dst)->wsp = (dst)->wstart + _wsz;\
 	(dst)->wend = (dst)->wstart + DEF_WSTACK_SIZE;\
+        (dst)->wdefault = NULL;\
 	(dst)->alloc_type = s.alloc_type;\
     } else\
         *(dst) = s;\
@@ -569,12 +622,12 @@ do {						\
     ASSERT(s.wsp <= s.wend);			\
 } while (0)
 
-#define WSTACK_IS_STATIC(s) (s.wstart == WSTK_DEF_STACK(s)))
+#define WSTACK_IS_STATIC(s) (s.wstart == WSTK_DEF_STACK(s))
 
 #define WSTACK_PUSH(s, x)				\
 do {							\
     if (s.wsp == s.wend) {				\
-	erl_grow_wstack(&s, WSTK_DEF_STACK(s)); 	\
+	erl_grow_wstack(&s, 1); 	                \
     }							\
     *s.wsp++ = (x);					\
 } while(0)
@@ -582,7 +635,7 @@ do {							\
 #define WSTACK_PUSH2(s, x, y)			\
 do {						\
     if (s.wsp > s.wend - 2) {			\
-	erl_grow_wstack(&s, WSTK_DEF_STACK(s)); \
+	erl_grow_wstack(&s, 2);                 \
     }						\
     *s.wsp++ = (x);				\
     *s.wsp++ = (y);				\
@@ -590,17 +643,129 @@ do {						\
 
 #define WSTACK_PUSH3(s, x, y, z)		\
 do {						\
-    if (s.wsp > s.wend - 3) {	\
-	erl_grow_wstack(&s, WSTK_DEF_STACK(s)); \
+    if (s.wsp > s.wend - 3) {	                \
+	erl_grow_wstack(&s, 3);                 \
     }						\
     *s.wsp++ = (x);				\
     *s.wsp++ = (y);				\
     *s.wsp++ = (z);				\
 } while(0)
 
+#define WSTACK_PUSH4(s, A1, A2, A3, A4)		\
+do {						\
+    if (s.wsp > s.wend - 4) {	                \
+	erl_grow_wstack(&s, 4);                 \
+    }						\
+    *s.wsp++ = (A1);				\
+    *s.wsp++ = (A2);				\
+    *s.wsp++ = (A3);				\
+    *s.wsp++ = (A4);				\
+} while(0)
+
+#define WSTACK_PUSH5(s, A1, A2, A3, A4, A5)     \
+do {						\
+    if (s.wsp > s.wend - 5) {	                \
+	erl_grow_wstack(&s, 5);                 \
+    }						\
+    *s.wsp++ = (A1);				\
+    *s.wsp++ = (A2);				\
+    *s.wsp++ = (A3);				\
+    *s.wsp++ = (A4);				\
+    *s.wsp++ = (A5);				\
+} while(0)
+
+#define WSTACK_PUSH6(s, A1, A2, A3, A4, A5, A6) \
+do {						\
+    if (s.wsp > s.wend - 6) {	                \
+	erl_grow_wstack(&s, 6);                 \
+    }						\
+    *s.wsp++ = (A1);				\
+    *s.wsp++ = (A2);				\
+    *s.wsp++ = (A3);				\
+    *s.wsp++ = (A4);				\
+    *s.wsp++ = (A5);				\
+    *s.wsp++ = (A6);				\
+} while(0)
+
+#define WSTACK_RESERVE(s, push_cnt)             \
+do {						\
+    if (s.wsp > s.wend - (push_cnt)) { 	        \
+	erl_grow_wstack(&s, (push_cnt));        \
+    }                                           \
+} while(0)
+
+/* Must be preceded by WSTACK_RESERVE */
+#define WSTACK_FAST_PUSH(s, x)                  \
+do {						\
+    ASSERT(s.wsp < s.wend);                     \
+    *s.wsp++ = (x);                             \
+} while(0)
+
 #define WSTACK_COUNT(s) (s.wsp - s.wstart)
 #define WSTACK_ISEMPTY(s) (s.wsp == s.wstart)
-#define WSTACK_POP(s) (*(--s.wsp))
+#define WSTACK_POP(s) ((ASSERT(s.wsp > s.wstart)),*(--s.wsp))
+
+#define WSTACK_ROLLBACK(s, count) (ASSERT(WSTACK_COUNT(s) >= (count)), \
+                                   s.wsp = s.wstart + (count))
+
+/* PSTACK - Stack of any type.
+ * Usage:
+ * {
+ * #define PSTACK_TYPE MyType
+ *    PSTACK_DECLARE(s,16);
+ *    MyType *sp = PSTACK_PUSH(s);
+ *
+ *    sp->x = ....
+ *    sp->y = ....
+ *    sp = PSTACK_PUSH(s);
+ *    ...
+ *    sp = PSTACK_POP(s);
+ *    if (PSTACK_IS_EMPTY(s)) {
+ *        // sp is invalid when stack is empty after pop
+ *    }
+ *
+ *    PSTACK_DESTROY(s);
+ * }
+ */
+
+
+typedef struct ErtsPStack_ {
+    byte* pstart;
+    byte* psp;
+    byte* pend;
+    ErtsAlcType_t alloc_type;
+}ErtsPStack;
+
+void erl_grow_pstack(ErtsPStack* s, void* default_pstack, unsigned need_bytes);
+#define PSTK_CONCAT(a,b) a##b
+#define PSTK_DEF_STACK(s) PSTK_CONCAT(s,_default_pstack)
+
+#define PSTACK_DECLARE(s, DEF_PSTACK_SIZE) \
+PSTACK_TYPE PSTK_DEF_STACK(s)[DEF_PSTACK_SIZE];                            \
+ErtsPStack s = { (byte*)PSTK_DEF_STACK(s), /* pstart */                    \
+                 (byte*)(PSTK_DEF_STACK(s) - 1), /* psp */                 \
+                 (byte*)(PSTK_DEF_STACK(s) + (DEF_PSTACK_SIZE)), /* pend */\
+                 ERTS_ALC_T_ESTACK   /* alloc_type */                      \
+}
+
+#define PSTACK_DESTROY(s)				\
+do {							\
+    if (s.pstart != (byte*)PSTK_DEF_STACK(s)) {		\
+	erts_free(s.alloc_type, s.pstart); 		\
+    }							\
+} while(0)
+
+#define PSTACK_IS_EMPTY(s) (s.psp < s.pstart)
+
+#define PSTACK_TOP(s) (ASSERT(!PSTACK_IS_EMPTY(s)), (PSTACK_TYPE*)(s.psp))
+
+#define PSTACK_PUSH(s) 		                                           \
+    (s.psp += sizeof(PSTACK_TYPE),                                         \
+     ((s.psp == s.pend) ? erl_grow_pstack(&s, PSTK_DEF_STACK(s),           \
+                                          sizeof(PSTACK_TYPE)) : (void)0), \
+     ((PSTACK_TYPE*) s.psp))
+
+#define PSTACK_POP(s) ((PSTACK_TYPE*) (s.psp -= sizeof(PSTACK_TYPE)))
 
 
 /* binary.c */
@@ -623,9 +788,6 @@ erts_bld_port_info(Eterm **hpp,
 void erts_bif_info_init(void);
 
 /* bif.c */
-Eterm erts_make_ref(Process *);
-Eterm erts_make_ref_in_buffer(Eterm buffer[REF_THING_SIZE]);
-void erts_make_ref_in_array(Uint32 ref[ERTS_MAX_REF_NUMBERS]);
 
 ERTS_GLB_INLINE Eterm
 erts_proc_store_ref(Process *c_p, Uint32 ref[ERTS_MAX_REF_NUMBERS]);
@@ -705,6 +867,9 @@ void print_process_info(int, void *, Process*);
 void info(int, void *);
 void loaded(int, void *);
 
+/* erl_arith.c */
+double erts_get_positive_zero_float(void);
+
 /* config.c */
 
 __decl_noreturn void __noreturn erl_exit(int n, char*, ...);
@@ -810,23 +975,6 @@ void MD5Init(MD5_CTX *);
 void MD5Update(MD5_CTX *, unsigned char *, unsigned int);
 void MD5Final(unsigned char [16], MD5_CTX *);
 
-/* ggc.c */
-
-void erts_gc_info(ErtsGCInfo *gcip);
-void erts_init_gc(void);
-int erts_garbage_collect(Process*, int, Eterm*, int);
-void erts_garbage_collect_hibernate(Process* p);
-Eterm erts_gc_after_bif_call(Process* p, Eterm result, Eterm* regs, Uint arity);
-void erts_garbage_collect_literals(Process* p, Eterm* literals,
-				   Uint lit_size,
-				   struct erl_off_heap_header* oh);
-Uint erts_next_heap_size(Uint, Uint);
-Eterm erts_heap_sizes(Process* p);
-
-void erts_offset_off_heap(ErlOffHeap *, Sint, Eterm*, Eterm*);
-void erts_offset_heap_ptr(Eterm*, Uint, Sint, Eterm*, Eterm*);
-void erts_offset_heap(Eterm*, Uint, Sint, Eterm*, Eterm*);
-void erts_free_heap_frags(Process* p);
 
 /* io.c */
 
@@ -1161,7 +1309,8 @@ erts_alloc_message_heap_state(Uint size,
     state = erts_smp_atomic32_read_acqb(&receiver->state);
     if (statep)
 	*statep = state;
-    if (state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT))
+    if (state & (ERTS_PSFLG_EXITING
+		 | ERTS_PSFLG_PENDING_EXIT))
 	goto allocate_in_mbuf;
 #endif
 
@@ -1181,7 +1330,8 @@ erts_alloc_message_heap_state(Uint size,
 	state = erts_smp_atomic32_read_nob(&receiver->state);
 	if (statep)
 	    *statep = state;
-	if ((state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT))
+	if ((state & (ERTS_PSFLG_EXITING
+		      | ERTS_PSFLG_PENDING_EXIT))
 	    || (receiver->flags & F_DISABLE_GC)
 	    || HEAP_LIMIT(receiver) - HEAP_TOP(receiver) <= size) {
 	    /*
diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c
index 7c6696405b..ccc7da265e 100644
--- a/erts/emulator/beam/io.c
+++ b/erts/emulator/beam/io.c
@@ -47,6 +47,8 @@
 #include "external.h"
 #include "dtrace-wrapper.h"
 #include "erl_map.h"
+#include "erl_bif_unique.h"
+#include "erl_hl_timer.h"
 
 extern ErlDrvEntry fd_driver_entry;
 #ifndef __OSE__
@@ -378,11 +380,7 @@ static Port *create_port(char *name,
     prt->dist_entry = NULL;
     ERTS_PORT_INIT_CONNECTED(prt, pid);
     prt->common.u.alive.reg = NULL;
-#ifdef ERTS_SMP
-    prt->common.u.alive.ptimer = NULL;
-#else
-    sys_memset(&prt->common.u.alive.tm, 0, sizeof(ErlTimer));
-#endif
+    ERTS_PTMR_INIT(prt);
     erts_port_task_handle_init(&prt->timeout_task);
     prt->psd = NULL;
     prt->drv_data = (SWord) 0;
@@ -391,7 +389,7 @@ static Port *create_port(char *name,
     /* Set default tracing */
     erts_get_default_tracing(&ERTS_TRACE_FLAGS(prt), &ERTS_TRACER_PROC(prt));
 
-    ASSERT(((char *) prt) == ((char *) &prt->common));
+    ERTS_CT_ASSERT(offsetof(Port,common) == 0);
 
 #if !ERTS_PORT_INIT_INSTR_NEED_ID
     /*
@@ -462,11 +460,7 @@ erts_port_free(Port *prt)
 			    | ERTS_PORT_SFLG_FREE));
     ASSERT(state & ERTS_PORT_SFLG_PORT_DEBUG);
 
-#ifdef ERTS_SMP
-    ERTS_LC_ASSERT(erts_atomic32_read_nob(&prt->common.refc) == 0);
-#else
-    ERTS_LC_ASSERT(erts_atomic32_read_nob(&prt->refc) == 0);
-#endif
+    ERTS_LC_ASSERT(erts_atomic_read_nob(&prt->common.refc.atmc) == 0);
 
     erts_port_task_fini_sched(&prt->sched);
 
@@ -735,11 +729,7 @@ erts_open_driver(erts_driver_t* driver,	/* Pointer to driver. */
 	/*
 	 * Must clean up the port.
 	 */
-#ifdef ERTS_SMP
-	erts_cancel_smp_ptimer(port->common.u.alive.ptimer);
-#else
-	erts_cancel_timer(&(port->common.u.alive.tm));
-#endif
+	erts_cancel_port_timer(port);
 	stopq(port);
 	if (port->linebuf != NULL) {
 	    erts_free(ERTS_ALC_T_LINEBUF,
@@ -1429,15 +1419,7 @@ queue_port_sched_op_reply(Process *rp,
 	    bp = erts_resize_message_buffer(bp, used_h_size, &msg, 1);
     }
 
-    erts_queue_message(rp,
-		       rp_locksp,
-		       bp,
-		       msg,
-		       NIL
-#ifdef USE_VM_PROBES
-		       , NIL
-#endif
-	);
+    erts_queue_message(rp, rp_locksp, bp, msg, NIL);
 }
 
 static void
@@ -2805,7 +2787,8 @@ void erts_init_io(int port_tab_size,
 			 port_tab_size,
 			 common_element_size, /* Doesn't need to be excact */
 			 "port_table",
-			 legacy_port_tab);
+			 legacy_port_tab,
+			 1);
 
     erts_smp_atomic_init_nob(&erts_bytes_out, 0);
     erts_smp_atomic_init_nob(&erts_bytes_in, 0);
@@ -3072,7 +3055,7 @@ deliver_result(Eterm sender, Eterm pid, Eterm res)
 
     rp = (scheduler
 	  ? erts_proc_lookup(pid)
-	  : erts_pid2proc_opt(NULL, 0, pid, 0, ERTS_P2P_FLG_SMP_INC_REFC));
+	  : erts_pid2proc_opt(NULL, 0, pid, 0, ERTS_P2P_FLG_INC_REFC));
 
     if (rp) {
 	Eterm tuple;
@@ -3085,16 +3068,12 @@ deliver_result(Eterm sender, Eterm pid, Eterm res)
 	hp = erts_alloc_message_heap(sz_res + 3, &bp, &ohp, rp, &rp_locks);
 	res = copy_struct(res, sz_res, &hp, ohp);
 	tuple = TUPLE2(hp, sender, res);
-	erts_queue_message(rp, &rp_locks, bp, tuple, NIL
-#ifdef USE_VM_PROBES
-			   , NIL
-#endif
-			   );
+	erts_queue_message(rp, &rp_locks, bp, tuple, NIL);
 
 	if (rp_locks)
 	    erts_smp_proc_unlock(rp, rp_locks);
 	if (!scheduler)
-	    erts_smp_proc_dec_refc(rp);
+	    erts_proc_dec_refc(rp);
 
     }
 }
@@ -3138,7 +3117,7 @@ static void deliver_read_message(Port* prt, erts_aint32_t state, Eterm to,
 
     rp = (scheduler
 	  ? erts_proc_lookup(to)
-	  : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC));
+	  : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_INC_REFC));
 
     if (!rp)
 	return;
@@ -3153,8 +3132,6 @@ static void deliver_read_message(Port* prt, erts_aint32_t state, Eterm to,
 	Binary* bptr;
 
 	bptr = erts_bin_nrml_alloc(len);
-	bptr->flags = 0;
-	bptr->orig_size = len;
 	erts_refc_init(&bptr->refc, 1);
 	sys_memcpy(bptr->orig_bytes, buf, len);
 
@@ -3187,15 +3164,11 @@ static void deliver_read_message(Port* prt, erts_aint32_t state, Eterm to,
     tuple = TUPLE2(hp, prt->common.id, tuple);
     hp += 3;
 
-    erts_queue_message(rp, &rp_locks, bp, tuple, am_undefined
-#ifdef USE_VM_PROBES
-			   , NIL
-#endif
-		       );
+    erts_queue_message(rp, &rp_locks, bp, tuple, am_undefined);
     if (rp_locks)
 	erts_smp_proc_unlock(rp, rp_locks);
     if (!scheduler)
-	erts_smp_proc_dec_refc(rp);
+	erts_proc_dec_refc(rp);
 }
 
 /* 
@@ -3281,7 +3254,7 @@ deliver_vec_message(Port* prt,			/* Port */
 
     rp = (scheduler
 	  ? erts_proc_lookup(to)
-	  : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC));
+	  : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_INC_REFC));
     if (!rp)
 	return;
 
@@ -3358,14 +3331,10 @@ deliver_vec_message(Port* prt,			/* Port */
     tuple = TUPLE2(hp, prt->common.id, tuple);
     hp += 3;
 
-    erts_queue_message(rp, &rp_locks, bp, tuple, am_undefined
-#ifdef USE_VM_PROBES
-		       , NIL
-#endif
-		       );
+    erts_queue_message(rp, &rp_locks, bp, tuple, am_undefined);
     erts_smp_proc_unlock(rp, rp_locks);
     if (!scheduler)
-	erts_smp_proc_dec_refc(rp);
+	erts_proc_dec_refc(rp);
 }
 
 
@@ -3455,11 +3424,8 @@ terminate_port(Port *prt)
 	send_closed_port_id = NIL;
     }
 
-#ifdef ERTS_SMP
-    erts_cancel_smp_ptimer(prt->common.u.alive.ptimer);
-#else
-    erts_cancel_timer(&prt->common.u.alive.tm);
-#endif
+    if (ERTS_PTMR_IS_SET(prt))
+	erts_cancel_port_timer(prt);
 
     drv = prt->drv_ptr;
     if ((drv != NULL) && (drv->stop != NULL)) {
@@ -5006,24 +4972,6 @@ erts_free_port_names(ErtsPortNames *pnp)
     erts_free(ERTS_ALC_T_PORT_NAMES, pnp);
 }
 
-static void schedule_port_timeout(Port *p)
-{
-    /*
-     * Scheduling of port timeouts can be done without port locking, but
-     * since the task handle is stored in the port structure and the ptimer
-     * structure is protected by the port lock we require the port to be
-     * locked for now...
-     *
-     * TODO: Implement scheduling of port timeouts without locking
-     *       the port.
-     * /Rickard
-     */
-    ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(p));
-    erts_port_task_schedule(p->common.id,
-			    &p->timeout_task,
-			    ERTS_PORT_TASK_TIMEOUT);
-}
-
 ErlDrvTermData driver_mk_term_nil(void)
 {
     return driver_term_nil;
@@ -5052,7 +5000,7 @@ void driver_report_exit(ErlDrvPort ix, int status)
 
    rp = (scheduler
 	 ? erts_proc_lookup(pid)
-	 : erts_pid2proc_opt(NULL, 0, pid, 0, ERTS_P2P_FLG_SMP_INC_REFC));
+	 : erts_pid2proc_opt(NULL, 0, pid, 0, ERTS_P2P_FLG_INC_REFC));
    if (!rp)
        return;
 
@@ -5062,15 +5010,11 @@ void driver_report_exit(ErlDrvPort ix, int status)
    hp += 3;
    tuple = TUPLE2(hp, prt->common.id, tuple);
 
-   erts_queue_message(rp, &rp_locks, bp, tuple, am_undefined
-#ifdef USE_VM_PROBES
-		      , NIL
-#endif
-		      );
+   erts_queue_message(rp, &rp_locks, bp, tuple, am_undefined);
 
    erts_smp_proc_unlock(rp, rp_locks);
    if (!scheduler)
-       erts_smp_proc_dec_refc(rp);
+       erts_proc_dec_refc(rp);
 }
 
 #define ERTS_B2T_STATES_DEF_STATES_SZ 5
@@ -5352,7 +5296,11 @@ driver_deliver_term(Eterm to, ErlDrvTermData* data, int len)
 	case ERL_DRV_MAP: { /* int */
 	    ERTS_DDT_CHK_ENOUGH_ARGS(1);
 	    if ((int) ptr[0] < 0) ERTS_DDT_FAIL;
-	    need += MAP_HEADER_SIZE + 1 + 2*ptr[0];
+            if (ptr[0] > MAP_SMALL_MAP_LIMIT) {
+                need += hashmap_over_estimated_heap_size(ptr[0]);
+            } else {
+                need += MAP_HEADER_FLATMAP_SZ + 1 + 2*ptr[0];
+            }
 	    depth -= 2*ptr[0];
 	    if (depth < 0) ERTS_DDT_FAIL;
 	    ptr++;
@@ -5382,7 +5330,7 @@ driver_deliver_term(Eterm to, ErlDrvTermData* data, int len)
     scheduler = erts_get_scheduler_id() != 0;
     rp = (scheduler
 	  ? erts_proc_lookup(to)
-	  : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC));
+	  : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_INC_REFC));
     if (!rp) {
 	res = 0;
 	goto done;
@@ -5507,8 +5455,6 @@ driver_deliver_term(Eterm to, ErlDrvTermData* data, int len)
 		ProcBin* pbp;
 		Binary* bp = erts_bin_nrml_alloc(size);
 		ASSERT(bufp);
-		bp->flags = 0;
-		bp->orig_size = (SWord) size;
 		erts_refc_init(&bp->refc, 1);
 		sys_memcpy((void *) bp->orig_bytes, (void *) bufp, size);
 		pbp = (ProcBin *) hp;
@@ -5582,7 +5528,9 @@ driver_deliver_term(Eterm to, ErlDrvTermData* data, int len)
 
 	    mess = make_float(hp);
 	    f.fd = *((double *) ptr[0]);
-	    PUT_DOUBLE(f, hp);
+            if (!erts_isfinite(f.fd))
+                ERTS_DDT_FAIL;
+            PUT_DOUBLE(f, hp);
 	    hp += FLOAT_SIZE_OBJECT;
 	    ptr++;
 	    break;
@@ -5598,31 +5546,52 @@ driver_deliver_term(Eterm to, ErlDrvTermData* data, int len)
 
 	case ERL_DRV_MAP: { /* int */
 	    int size = (int)ptr[0];
-	    Eterm* tp = hp;
-	    Eterm* vp;
-	    map_t *mp;
-
-	    *tp = make_arityval(size);
-
-	    hp += 1 + size;
-	    mp = (map_t*)hp;
-	    mp->thing_word = MAP_HEADER;
-	    mp->size = size;
-	    mp->keys = make_tuple(tp);
-	    mess = make_map(mp);
-
-	    hp += MAP_HEADER_SIZE + size;   /* advance "heap" pointer */
-
-	    tp += size;    /* point at last key */
-	    vp = hp - 1;   /* point at last value */
-
-	    while(size--) {
-		*vp-- = ESTACK_POP(stack);
-		*tp-- = ESTACK_POP(stack);
-	    }
-	    if (!erts_validate_and_sort_map(mp))
-		ERTS_DDT_FAIL;
-	    ptr++;
+            if (size > MAP_SMALL_MAP_LIMIT) {
+                int ix = 2*size;
+                ErtsHeapFactory factory;
+                Eterm* leafs = hp;
+
+                hp += 2*size;
+                while(ix--) { *--hp = ESTACK_POP(stack); }
+
+                hp += 2*size;
+                factory.p = NULL;
+                factory.hp = hp;
+                /* We assume heap will suffice (see hashmap_over_estimated_heap_size) */
+
+                mess = erts_hashmap_from_array(&factory, leafs, size, 1);
+
+                if (is_non_value(mess))
+                    ERTS_DDT_FAIL;
+
+                hp = factory.hp;
+            } else {
+                Eterm* tp = hp;
+                Eterm* vp;
+                flatmap_t *mp;
+
+                *tp = make_arityval(size);
+
+                hp += 1 + size;
+                mp = (flatmap_t*)hp;
+                mp->thing_word = MAP_HEADER_FLATMAP;
+                mp->size = size;
+                mp->keys = make_tuple(tp);
+                mess = make_flatmap(mp);
+
+                hp += MAP_HEADER_FLATMAP_SZ + size;
+
+                tp += size;    /* point at last key */
+                vp = hp - 1;   /* point at last value */
+
+                while(size--) {
+                    *vp-- = ESTACK_POP(stack);
+                    *tp-- = ESTACK_POP(stack);
+                }
+                if (!erts_validate_and_sort_flatmap(mp))
+                    ERTS_DDT_FAIL;
+            }
+            ptr++;
 	    break;
 	}
 
@@ -5643,11 +5612,7 @@ driver_deliver_term(Eterm to, ErlDrvTermData* data, int len)
 	    HRelease(rp, hp_end, hp);	    
 	}
 	/* send message */
-	erts_queue_message(rp, &rp_locks, bp, mess, am_undefined
-#ifdef USE_VM_PROBES
-			   , NIL
-#endif
-			   );
+	erts_queue_message(rp, &rp_locks, bp, mess, am_undefined);
     }
     else {
 	if (b2t.ix > b2t.used)
@@ -5660,14 +5625,12 @@ driver_deliver_term(Eterm to, ErlDrvTermData* data, int len)
 	    HRelease(rp, hp_end, hp);
 	}
     }
-#ifdef ERTS_SMP
     if (rp) {
 	if (rp_locks)
 	    erts_smp_proc_unlock(rp, rp_locks);
 	if (!scheduler)
-	    erts_smp_proc_dec_refc(rp);
+	    erts_proc_dec_refc(rp);
     }
-#endif
     cleanup_b2t_states(&b2t);
     DESTROY_ESTACK(stack);
     return res;
@@ -6000,9 +5963,7 @@ driver_alloc_binary(ErlDrvSizeT size)
     bin = erts_bin_drv_alloc_fnf((Uint) size);
     if (!bin)
 	return NULL; /* The driver write must take action */
-    bin->flags = BIN_FLAG_DRV;
     erts_refc_init(&bin->refc, 1);
-    bin->orig_size = (SWord) size;
     return Binary2ErlDrvBinary(bin);
 }
 
@@ -6032,7 +5993,6 @@ ErlDrvBinary* driver_realloc_binary(ErlDrvBinary* bin, ErlDrvSizeT size)
     if (!newbin)
 	return NULL;
 
-    newbin->orig_size = size;
     return Binary2ErlDrvBinary(newbin);
 }
 
@@ -6616,18 +6576,6 @@ int driver_pushq(ErlDrvPort ix, char* buffer, ErlDrvSizeT len)
     return code;
 }
 
-static ERTS_INLINE void
-drv_cancel_timer(Port *prt)
-{
-#ifdef ERTS_SMP
-    erts_cancel_smp_ptimer(prt->common.u.alive.ptimer);
-#else
-    erts_cancel_timer(&prt->common.u.alive.tm);
-#endif
-    if (erts_port_task_is_scheduled(&prt->timeout_task))
-	erts_port_task_abort(&prt->timeout_task);
-}
-
 int driver_set_timer(ErlDrvPort ix, unsigned long t)
 {
     Port* prt = erts_drvport2port(ix);
@@ -6639,19 +6587,8 @@ int driver_set_timer(ErlDrvPort ix, unsigned long t)
 
     if (prt->drv_ptr->timeout == NULL)
 	return -1;
-    drv_cancel_timer(prt);
-#ifdef ERTS_SMP
-    erts_create_smp_ptimer(&prt->common.u.alive.ptimer,
-			   prt->common.id,
-			   (ErlTimeoutProc) schedule_port_timeout,
-			   t);
-#else
-    erts_set_timer(&prt->common.u.alive.tm,
-		  (ErlTimeoutProc) schedule_port_timeout,
-		  NULL,
-		  prt,
-		  t);
-#endif
+
+    erts_set_port_timer(prt, (Sint64) t);
     return 0;
 }
 
@@ -6661,28 +6598,28 @@ int driver_cancel_timer(ErlDrvPort ix)
     if (prt == ERTS_INVALID_ERL_DRV_PORT)
 	return -1;
     ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
-    drv_cancel_timer(prt);
+    erts_cancel_port_timer(prt);
     return 0;
 }
 
-
 int
 driver_read_timer(ErlDrvPort ix, unsigned long* t)
 {
     Port* prt = erts_drvport2port(ix);
+    Sint64 left;
 
     ERTS_SMP_CHK_NO_PROC_LOCKS;
 
     if (prt == ERTS_INVALID_ERL_DRV_PORT)
 	return -1;
     ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
-#ifdef ERTS_SMP
-    *t = (prt->common.u.alive.ptimer
-	  ? erts_time_left(&prt->common.u.alive.ptimer->timer.tm)
-	  : 0);
-#else
-    *t = erts_time_left(&prt->common.u.alive.tm);
-#endif
+
+    left = erts_read_port_timer(prt);
+    if (left < 0)
+	left = 0;
+
+    *t = (unsigned long) left;
+
     return 0;
 }
 
@@ -6706,7 +6643,7 @@ static void ref_to_driver_monitor(Eterm ref, ErlDrvMonitor *mon)
 {
     RefThing *refp;
     ASSERT(is_internal_ref(ref));
-    ASSERT(sizeof(RefThing) <= sizeof(ErlDrvMonitor));
+    ERTS_CT_ASSERT(sizeof(RefThing) <= sizeof(ErlDrvMonitor));
     refp = ref_thing_ptr(ref);
     memset(mon,0,sizeof(ErlDrvMonitor));
     memcpy(mon,refp,sizeof(RefThing));
diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab
index 68fcc177ae..ece038131e 100644
--- a/erts/emulator/beam/ops.tab
+++ b/erts/emulator/beam/ops.tab
@@ -166,22 +166,26 @@ is_tuple Fail=f S | select_tuple_arity S=d Fail=f Size=u Rest=* => \
 select_tuple_arity S=d Fail=f Size=u Rest=* => \
   gen_select_tuple_arity(S, Fail, Size, Rest)
 
-i_select_val r f I
-i_select_val x f I
-i_select_val y f I
+i_select_val_bins r f I
+i_select_val_bins x f I
+i_select_val_bins y f I
 
-i_select_val2 r f c f c f
-i_select_val2 x f c f c f
-i_select_val2 y f c f c f
+i_select_val_lins r f I
+i_select_val_lins x f I
+i_select_val_lins y f I
 
-i_select_tuple_arity2 r f A f A f
-i_select_tuple_arity2 x f A f A f
-i_select_tuple_arity2 y f A f A f
+i_select_val2 r f c c f f
+i_select_val2 x f c c f f
+i_select_val2 y f c c f f
 
 i_select_tuple_arity r f I
 i_select_tuple_arity x f I
 i_select_tuple_arity y f I
 
+i_select_tuple_arity2 r f A A f f
+i_select_tuple_arity2 x f A A f f
+i_select_tuple_arity2 y f A A f f
+
 i_jump_on_val_zero r f I
 i_jump_on_val_zero x f I
 i_jump_on_val_zero y f I
@@ -294,10 +298,49 @@ move_jump f c
 move_jump f x
 move_jump f y
 
+
+# Movement to and from the stack is common
+# Try to pack as much as we can into one instruction
+
+# Window move
+move_window/5
+move_window/6
+
+# x -> y
+
+move S1=r S2=y | move X1=x Y1=y => move2 S1 S2 X1 Y1
+
+move X1=x Y1=y | move X2=x Y2=y | move X3=x Y3=y | succ(Y1,Y2) | succ(Y2,Y3) => \
+    move_window X1 X2 X3 Y1 Y3
+
+move_window X1=x X2=x X3=x Y1=y Y3=y | move X4=x Y4=y | succ(Y3,Y4) => \
+    move_window X1 X2 X3 X4 Y1 Y4
+
+move_window X1=x X2=x X3=x X4=x Y1=y Y4=y | move X5=x Y5=y | succ(Y4,Y5) => \
+    move_window5 X1 X2 X3 X4 X5 Y1
+
+move_window X1=x X2=x X3=x Y1=y Y3=y => move_window3 X1 X2 X3 Y1
+move_window X1=x X2=x X3=x X4=x Y1=y Y4=y => move_window4 X1 X2 X3 X4 Y1
+
+move_window3 x x x y
+move_window4 x x x x y
+move_window5 x x x x x y
+
 move X1=x Y1=y | move X2=x Y2=y => move2 X1 Y1 X2 Y2
 move Y1=y X1=x | move Y2=y X2=x => move2 Y1 X1 Y2 X2
 move X1=x X2=x | move X3=x X4=x => move2 X1 X2 X3 X4
 
+move S1=x S2=r | move S3=x S4=x => move2 S1 S2 S3 S4
+move S1=x S2=r | move X1=x Y1=y => move2 S1 S2 X1 Y1
+move S1=y S2=r | move X1=x Y1=y => move2 S1 S2 X1 Y1
+
+move Y1=y X1=x | move S1=r D1=x => move2 Y1 X1 S1 D1
+move S1=r D1=x | move Y1=y X1=x => move2 S1 D1 Y1 X1
+
+move2 X1=x Y1=y X2=x Y2=y | move X3=x Y3=y => move3 X1 Y1 X2 Y2 X3 Y3
+move2 Y1=y X1=x Y2=y X2=x | move Y3=y X3=x => move3 Y1 X1 Y2 X2 Y3 X3
+move2 X1=x X2=x X3=x X4=x | move X5=x X6=x => move3 X1 X2 X3 X4 X5 X6
+
 move C=aiq X=x==1 => move_x1 C
 move C=aiq X=x==2 => move_x2 C
 
@@ -309,6 +352,20 @@ move2 x y x y
 move2 y x y x
 move2 x x x x
 
+move2 x r x x
+
+move2 x r x y
+move2 r y x y
+move2 y r x y
+
+move2 r x y x
+move2 y x r x
+
+%macro: move3 Move3
+move3 x y x y x y
+move3 y x y x y x
+move3 x x x x x x
+
 # The compiler almost never generates a "move Literal y(Y)" instruction,
 # so let's cheat if we encounter one.
 move S=n D=y => init D
@@ -388,14 +445,59 @@ i_is_ne_exact_literal x f c
 i_is_ne_exact_literal y f c
 
 #
+# Common Compare Specializations
+# We don't do all of them since we want
+# to keep the instruction set small-ish
+#
+
+is_eq_exact Lbl S1=xy S2=r => is_eq_exact Lbl S2 S1
+is_eq_exact Lbl S1=rx S2=xy => i_is_eq_exact_spec Lbl S1 S2
+%macro: i_is_eq_exact_spec EqualExact -fail_action
+
+i_is_eq_exact_spec f x x
+i_is_eq_exact_spec f x y
+i_is_eq_exact_spec f r x
+i_is_eq_exact_spec f r y
+%cold
+i_is_eq_exact_spec f r r
+%hot
+
+is_lt Lbl S1=rxc S2=rxc  => i_is_lt_spec Lbl S1 S2
+
+%macro: i_is_lt_spec IsLessThan -fail_action
+
+i_is_lt_spec f x x
+i_is_lt_spec f x r
+i_is_lt_spec f x c
+i_is_lt_spec f r x
+i_is_lt_spec f r c
+i_is_lt_spec f c x
+i_is_lt_spec f c r
+%cold
+i_is_lt_spec f r r
+i_is_lt_spec f c c
+%hot
+
+is_ge Lbl S1=xc S2=xc => i_is_ge_spec Lbl S1 S2
+
+%macro: i_is_ge_spec IsGreaterEqual -fail_action
+
+i_is_ge_spec f x x
+i_is_ge_spec f x c
+i_is_ge_spec f c x
+%cold
+i_is_ge_spec f c c
+%hot
+
+#
 # All other comparisons.
 #
 
 is_eq_exact Lbl S1 S2 => i_fetch S1 S2 | i_is_eq_exact Lbl
 is_ne_exact Lbl S1 S2 => i_fetch S1 S2 | i_is_ne_exact Lbl
 
-is_ge Lbl S1 S2 => i_fetch S1 S2 | i_is_ge Lbl
 is_lt Lbl S1 S2 => i_fetch S1 S2 | i_is_lt Lbl
+is_ge Lbl S1 S2 => i_fetch S1 S2 | i_is_ge Lbl
 is_eq Lbl S1 S2 => i_fetch S1 S2 | i_is_eq Lbl
 is_ne Lbl S1 S2 => i_fetch S1 S2 | i_is_ne Lbl
 
@@ -489,7 +591,6 @@ put_list s s d
 %hot
 
 %macro: i_fetch FetchArgs -pack
-i_fetch c c
 i_fetch c r
 i_fetch c x
 i_fetch c y
@@ -506,6 +607,7 @@ i_fetch y x
 i_fetch y y
 
 %cold
+i_fetch c c
 i_fetch s s
 %hot
 
@@ -1469,79 +1571,67 @@ apply_last I P
 # Map instructions in R17.
 #
 
-put_map_assoc F n Dst Live Size Rest=* => new_map F Dst Live Size Rest
-put_map_assoc F Src=s Dst Live Size Rest=* => \
+sorted_put_map_assoc/5
+put_map_assoc F Map Dst Live Size Rest=* | map_key_sort(Size, Rest) => \
+  sorted_put_map_assoc F Map Dst Live Size Rest
+
+sorted_put_map_exact/5
+put_map_exact F Map Dst Live Size Rest=* | map_key_sort(Size, Rest) => \
+  sorted_put_map_exact F Map Dst Live Size Rest
+
+sorted_put_map_assoc j Map Dst Live Size Rest=* | is_empty_map(Map) => \
+   new_map Dst Live Size Rest
+sorted_put_map_assoc F Src=s Dst Live Size Rest=* => \
 	       update_map_assoc F Src Dst Live Size Rest
-put_map_assoc F Src Dst Live Size Rest=* => \
+sorted_put_map_assoc F Src Dst Live Size Rest=* => \
 	       move Src x | update_map_assoc F x Dst Live Size Rest
-put_map_exact F n Dst Live Size Rest=* => new_map F Dst Live Size Rest
-put_map_exact F Src=s Dst Live Size Rest=* => \
+
+sorted_put_map_exact F Src=s Dst Live Size Rest=* => \
 	      update_map_exact F Src Dst Live Size Rest
-put_map_exact F Src Dst Live Size Rest=* => \
+sorted_put_map_exact F Src Dst Live Size Rest=* => \
 	      move Src x | update_map_exact F x Dst Live Size Rest
 
-new_map j d I I
+new_map d I I
 update_map_assoc j s d I I
 update_map_exact j s d I I
 
-is_map Fail Literal=q => move Literal x | is_map Fail x
-is_map Fail c => jump Fail
+is_map Fail Lit=q | literal_is_map(Lit) =>
+is_map Fail cq => jump Fail
 
 %macro: is_map IsMap -fail_action
 is_map f r
 is_map f x
 is_map f y
 
-## Transform has_map_field(s) #{ K1 := _, K2 := _ }
+## Transform has_map_fields #{ K1 := _, K2 := _ } to has_map_elements
 
-has_map_field/3
-
-has_map_fields Fail Src Size=u==1 Rest=* => gen_has_map_field(Fail,Src,Size,Rest)
-has_map_fields Fail Src Size Rest=* => i_has_map_fields Fail Src Size Rest
-
-i_has_map_fields f s I
-
-has_map_field Fail Src=rxy Key=arxy => i_has_map_field Fail Src Key
-has_map_field Fail Src Key => move Key x | i_has_map_field Fail Src x
-
-%macro: i_has_map_field HasMapField -fail_action
-i_has_map_field f r a
-i_has_map_field f x a
-i_has_map_field f y a
-i_has_map_field f r r
-i_has_map_field f x r
-i_has_map_field f y r
-i_has_map_field f r x
-i_has_map_field f x x
-i_has_map_field f y x
-i_has_map_field f r y
-i_has_map_field f x y
-i_has_map_field f y y
+has_map_fields Fail Src Size Rest=* => \
+   gen_has_map_fields(Fail, Src, Size, Rest)
 
 ## Transform get_map_elements(s) #{ K1 := V1, K2 := V2 }
 
-get_map_element/4
-
-get_map_elements Fail Src=rxy Size=u==2 Rest=* => gen_get_map_element(Fail,Src,Size,Rest)
-get_map_elements Fail Src Size Rest=* => i_get_map_elements Fail Src Size Rest
+get_map_elements Fail Src=rxy Size=u==2 Rest=* => \
+    gen_get_map_element(Fail, Src, Size, Rest)
+get_map_elements Fail Src Size Rest=* | map_key_sort(Size, Rest) => \
+   gen_get_map_elements(Fail, Src, Size, Rest)
 
 i_get_map_elements f s I
 
-get_map_element Fail Src=rxy Key=ax Dst => i_get_map_element Fail Src Key Dst
-get_map_element Fail Src=rxy Key=rycq Dst => \
+i_get_map_element Fail Src=rxy Key=ry Dst => \
     move Key x | i_get_map_element Fail Src x Dst
-get_map_element Fail Src Key Dst => jump Fail
+
+%macro: i_get_map_element_hash GetMapElementHash -fail_action
+i_get_map_element_hash f r c I r
+i_get_map_element_hash f x c I r
+i_get_map_element_hash f y c I r
+i_get_map_element_hash f r c I x
+i_get_map_element_hash f x c I x
+i_get_map_element_hash f y c I x
+i_get_map_element_hash f r c I y
+i_get_map_element_hash f x c I y
+i_get_map_element_hash f y c I y
 
 %macro: i_get_map_element GetMapElement -fail_action
-i_get_map_element f r a r
-i_get_map_element f x a r
-i_get_map_element f y a r
-i_get_map_element f r a x
-i_get_map_element f x a x
-i_get_map_element f y a x
-i_get_map_element f r a y
-i_get_map_element f x a y
-i_get_map_element f y a y
 i_get_map_element f r x r
 i_get_map_element f x x r
 i_get_map_element f y x r
@@ -1570,17 +1660,21 @@ gc_bif2 p Live u$bif:erlang:sminus/2 Reg=d Int=i Dst | \
 # GCing arithmetic instructions.
 #
 
+gc_bif2 Fail I u$bif:erlang:splus/2 S1=x S2=x Dst=d => i_plus Fail I S1 S2 Dst
 gc_bif2 Fail I u$bif:erlang:splus/2 S1 S2 Dst=d => i_fetch S1 S2 | i_plus Fail I Dst
+gc_bif2 Fail I u$bif:erlang:sminus/2 S1=x S2=x Dst=d => i_minus Fail I S1 S2 Dst
 gc_bif2 Fail I u$bif:erlang:sminus/2 S1 S2 Dst=d => i_fetch S1 S2 | i_minus Fail I Dst
 gc_bif2 Fail I u$bif:erlang:stimes/2 S1 S2 Dst=d => i_fetch S1 S2 | i_times Fail I Dst
 gc_bif2 Fail I u$bif:erlang:div/2 S1 S2 Dst=d => i_fetch S1 S2 | i_m_div Fail I Dst
 
 gc_bif2 Fail I u$bif:erlang:intdiv/2 S1 S2 Dst=d => i_fetch S1 S2 | i_int_div Fail I Dst
+gc_bif2 Fail I u$bif:erlang:rem/2 S1=x S2=x Dst=d => i_rem Fail I S1 S2 Dst
 gc_bif2 Fail I u$bif:erlang:rem/2 S1 S2 Dst=d => i_fetch S1 S2 | i_rem Fail I Dst
 
 gc_bif2 Fail I u$bif:erlang:bsl/2 S1 S2 Dst=d => i_fetch S1 S2 | i_bsl Fail I Dst
 gc_bif2 Fail I u$bif:erlang:bsr/2 S1 S2 Dst=d => i_fetch S1 S2 | i_bsr Fail I Dst
 
+gc_bif2 Fail I u$bif:erlang:band/2 S1=x S2=c Dst=d => i_band Fail I S1 S2 Dst
 gc_bif2 Fail I u$bif:erlang:band/2 S1 S2 Dst=d => i_fetch S1 S2 | i_band Fail I Dst
 gc_bif2 Fail I u$bif:erlang:bor/2 S1 S2 Dst=d => i_fetch S1 S2 | i_bor Fail I Dst
 gc_bif2 Fail I u$bif:erlang:bxor/2 S1 S2 Dst=d => i_fetch S1 S2 | i_bxor Fail I Dst
@@ -1594,16 +1688,20 @@ i_increment r I I d
 i_increment x I I d
 i_increment y I I d
 
+i_plus j I x x d
 i_plus j I d
+i_minus j I x x d
 i_minus j I d
 i_times j I d
 i_m_div j I d
 i_int_div j I d
+i_rem j I x x d
 i_rem j I d
 
 i_bsl j I d
 i_bsr j I d
 
+i_band j I x c d
 i_band j I d
 i_bor j I d
 i_bxor j I d
diff --git a/erts/emulator/beam/register.c b/erts/emulator/beam/register.c
index c626cb2780..4d557b3a17 100644
--- a/erts/emulator/beam/register.c
+++ b/erts/emulator/beam/register.c
@@ -269,7 +269,10 @@ erts_whereis_name_to_id(Process *c_p, Eterm name)
 #ifdef ERTS_SMP
     ErtsProcLocks c_p_locks = c_p ? ERTS_PROC_LOCK_MAIN : 0;
 
-    ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(c_p);
+#ifdef ERTS_ENABLE_LOCK_CHECK
+    if (c_p) ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(c_p);
+#endif
+
     reg_safe_read_lock(c_p, &c_p_locks);
     if (c_p && !c_p_locks)
         erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MAIN);
@@ -380,8 +383,6 @@ erts_whereis_name(Process *c_p,
 			erts_smp_proc_unlock(rp->p, need_locks);
 		    *proc = NULL;
 		}
-		if (*proc && (flags & ERTS_P2P_FLG_SMP_INC_REFC))
-		    erts_smp_proc_inc_refc(rp->p);
 	    }
 #else
 	    if (rp->p
@@ -390,6 +391,8 @@ erts_whereis_name(Process *c_p,
 	    else
 		*proc = NULL;
 #endif
+	    if (*proc && (flags & ERTS_P2P_FLG_INC_REFC))
+		erts_proc_inc_refc(*proc);
 	}
     }
 
diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h
index c29d4b3777..cd53069872 100644
--- a/erts/emulator/beam/sys.h
+++ b/erts/emulator/beam/sys.h
@@ -21,6 +21,25 @@
 #define __SYS_H__
 
 
+#if defined(DEBUG) || defined(ERTS_ENABLE_LOCK_CHECK)
+#  undef ERTS_CAN_INLINE
+#  define ERTS_CAN_INLINE 0
+#  undef ERTS_INLINE
+#  define ERTS_INLINE
+#endif
+
+#if ERTS_CAN_INLINE
+#define ERTS_GLB_INLINE static ERTS_INLINE
+#else
+#define ERTS_GLB_INLINE
+#endif
+
+#if ERTS_CAN_INLINE || defined(ERTS_DO_INCL_GLB_INLINE_FUNC_DEF) 
+#  define ERTS_GLB_INLINE_INCL_FUNC_DEF 1
+#else
+#  define ERTS_GLB_INLINE_INCL_FUNC_DEF 0
+#endif
+
 #if defined(VALGRIND) && !defined(NO_FPE_SIGNALS)
 #  define NO_FPE_SIGNALS
 #endif
@@ -132,24 +151,8 @@ typedef ERTS_SYS_FD_TYPE ErtsSysFdType;
 #  endif
 #endif
 
-#if defined(DEBUG) || defined(ERTS_ENABLE_LOCK_CHECK)
-#  undef ERTS_CAN_INLINE
-#  define ERTS_CAN_INLINE 0
-#  undef ERTS_INLINE
-#  define ERTS_INLINE
-#endif
-
-#if ERTS_CAN_INLINE
-#define ERTS_GLB_INLINE static ERTS_INLINE
-#else
-#define ERTS_GLB_INLINE
-#endif
-
-#if ERTS_CAN_INLINE || defined(ERTS_DO_INCL_GLB_INLINE_FUNC_DEF) 
-#  define ERTS_GLB_INLINE_INCL_FUNC_DEF 1
-#else
-#  define ERTS_GLB_INLINE_INCL_FUNC_DEF 0
-#endif
+#define ERTS_MK_VSN_INT(Major, Minor, Build) \
+    ((((Major) & 0x3ff) << 20) | (((Minor) & 0x3ff) << 10) | ((Build) & 0x3ff))
 
 #ifndef ERTS_EXIT_AFTER_DUMP
 #  define ERTS_EXIT_AFTER_DUMP exit
@@ -188,6 +191,32 @@ __decl_noreturn void __noreturn erl_assert_error(const char* expr, const char *f
 #  define ASSERT(e) ((void) 1)
 #endif
 
+/* ERTS_UNDEF can be used to silence false warnings about
+ * "variable may be used uninitialized" while keeping the variable
+ * marked as undefined by valgrind.
+ */
+#ifdef VALGRIND
+#  define ERTS_UNDEF(V,I)
+#else
+#  define ERTS_UNDEF(V,I) V = I
+#endif
+
+/*
+ * Compile time assert
+ * (the actual compiler error msg can be a bit confusing)
+ */
+#if ERTS_AT_LEAST_GCC_VSN__(3,1,1)
+# define ERTS_CT_ASSERT(e) \
+    do { \
+	enum { compile_time_assert__ = __builtin_choose_expr((e),0,(void)0) }; \
+    } while(0)
+#else
+# define ERTS_CT_ASSERT(e) \
+    do { \
+        enum { compile_time_assert__ = 1/(e) }; \
+    } while (0)
+#endif
+
 /*
  * Microsoft C/C++: We certainly want to use stdarg.h and prototypes.
  * But MSC doesn't define __STDC__, unless we compile with the -Za
@@ -359,17 +388,45 @@ typedef Sint SWord;
 typedef UWord BeamInstr;
 
 #ifndef HAVE_INT64
-#if SIZEOF_LONG == 8
-#define HAVE_INT64 1
+#  if SIZEOF_LONG == 8
+#    define HAVE_INT64 1
 typedef unsigned long Uint64;
 typedef long          Sint64;
-#elif SIZEOF_LONG_LONG == 8
-#define HAVE_INT64 1
+#    ifdef ULONG_MAX
+#      define ERTS_UINT64_MAX ULONG_MAX
+#    endif
+#    ifdef LONG_MAX
+#      define ERTS_SINT64_MAX LONG_MAX
+#    endif
+#    ifdef LONG_MIN
+#      define ERTS_SINT64_MIN LONG_MIN
+#    endif
+#  elif SIZEOF_LONG_LONG == 8
+#    define HAVE_INT64 1
 typedef unsigned long long Uint64;
 typedef long long          Sint64;
-#else
-#define HAVE_INT64 0
+#    ifdef ULLONG_MAX
+#      define ERTS_UINT64_MAX ULLONG_MAX
+#    endif
+#    ifdef LLONG_MAX
+#      define ERTS_SINT64_MAX LLONG_MAX
+#    endif
+#    ifdef LLONG_MIN
+#      define ERTS_SINT64_MIN LLONG_MIN
+#    endif
+#  else
+#    error "No 64-bit integer type found"
+#  endif
+#endif
+
+#ifndef ERTS_UINT64_MAX
+#  define ERTS_UINT64_MAX (~((Uint64) 0))
+#endif
+#ifndef ERTS_SINT64_MAX
+#  define ERTS_SINT64_MAX ((Sint64) ((((Uint64) 1) << 63)-1))
 #endif
+#ifndef ERTS_SINT64_MIN
+#  define ERTS_SINT64_MIN (-1*(((Sint64) 1) << 63))
 #endif
 
 #if SIZEOF_LONG == 4
@@ -600,6 +657,7 @@ erts_dsprintf_buf_t *erts_create_logger_dsbuf(void);
 int erts_send_info_to_logger(Eterm, erts_dsprintf_buf_t *);
 int erts_send_warning_to_logger(Eterm, erts_dsprintf_buf_t *);
 int erts_send_error_to_logger(Eterm, erts_dsprintf_buf_t *);
+int erts_send_error_term_to_logger(Eterm, erts_dsprintf_buf_t *, Eterm);
 int erts_send_info_to_logger_str(Eterm, char *); 
 int erts_send_warning_to_logger_str(Eterm, char *);
 int erts_send_error_to_logger_str(Eterm, char *);
@@ -646,14 +704,37 @@ extern char *erts_default_arg0;
 
 extern char os_type[];
 
-extern int sys_init_time(void);
+typedef struct {
+    int have_os_monotonic_time;
+    int have_corrected_os_monotonic_time;
+    ErtsMonotonicTime os_monotonic_time_unit;
+    ErtsMonotonicTime sys_clock_resolution;
+    struct {
+	Uint64 resolution;
+	char *func;
+	char *clock_id;
+	int locked_use;
+	int extended;
+    } os_monotonic_time_info;
+    struct {
+	Uint64 resolution;
+	char *func;
+	char *clock_id;
+	int locked_use;
+    } os_system_time_info;
+} ErtsSysInitTimeResult;
+
+#define ERTS_SYS_INIT_TIME_RESULT_INITER \
+    {0, 0, (ErtsMonotonicTime) -1, (ErtsMonotonicTime) 1}
+
+extern void erts_init_sys_time_sup(void);
+extern void sys_init_time(ErtsSysInitTimeResult *);
+extern void erts_late_sys_init_time(void);
 extern void erts_deliver_time(void);
 extern void erts_time_remaining(SysTimeval *);
-extern int erts_init_time_sup(void);
 extern void erts_sys_init_float(void);
 extern void erts_thread_init_float(void);
 extern void erts_thread_disable_fpe(void);
-
 ERTS_GLB_INLINE int erts_block_fpe(void);
 ERTS_GLB_INLINE void erts_unblock_fpe(int);
 
@@ -696,11 +777,9 @@ extern char *erts_sys_ddll_error(int code);
 /*
  * System interfaces for startup.
  */
-#include "erl_time.h"
-
 void erts_sys_schedule_interrupt(int set);
 #ifdef ERTS_SMP
-void erts_sys_schedule_interrupt_timed(int set, erts_short_time_t msec);
+void erts_sys_schedule_interrupt_timed(int, ErtsMonotonicTime);
 void erts_sys_main_thread(void);
 #endif
 
@@ -739,6 +818,8 @@ int univ_to_local(
 int local_to_univ(Sint *year, Sint *month, Sint *day, 
 		  Sint *hour, Sint *minute, Sint *second, int isdst);
 void get_now(Uint*, Uint*, Uint*);
+struct ErtsSchedulerData_;
+ErtsMonotonicTime erts_get_monotonic_time(struct ErtsSchedulerData_ *);
 void get_sys_now(Uint*, Uint*, Uint*);
 void set_break_quit(void (*)(void), void (*)(void));
 
@@ -756,6 +837,8 @@ typedef struct {
 } ErtsCheckIoDebugInfo;
 int erts_check_io_debug(ErtsCheckIoDebugInfo *ip);
 
+int erts_sys_is_area_readable(char *start, char *stop);
+
 /* xxxP */
 #define SYS_DEFAULT_FLOAT_DECIMALS 20
 void init_sys_float(void);
@@ -784,6 +867,11 @@ int erts_sys_unsetenv(char *key);
 char *erts_read_env(char *key);
 void erts_free_read_env(void *value);
 
+#if defined(ERTS_THR_HAVE_SIG_FUNCS) && !defined(ETHR_UNUSABLE_SIGUSRX)
+extern void sys_thr_resume(erts_tid_t tid);
+extern void sys_thr_suspend(erts_tid_t tid);
+#endif
+
 /* utils.c */
 
 /* Options to sys_alloc_opt */
diff --git a/erts/emulator/beam/time.c b/erts/emulator/beam/time.c
index 2fd8e0cf00..8bffdedb2b 100644
--- a/erts/emulator/beam/time.c
+++ b/erts/emulator/beam/time.c
@@ -76,6 +76,11 @@
 #include "sys.h"
 #include "erl_vm.h"
 #include "global.h"
+#define ERTS_WANT_TIMER_WHEEL_API
+#include "erl_time.h"
+
+#define ERTS_MONOTONIC_DAY ERTS_SEC_TO_MONOTONIC(60*60*24)
+#define ERTS_CLKTCKS_DAY ERTS_MONOTONIC_TO_CLKTCKS(ERTS_MONOTONIC_DAY)
 
 #ifdef ERTS_ENABLE_LOCK_CHECK
 #define ASSERT_NO_LOCKED_LOCKS		erts_lc_check_exact(NULL, 0)
@@ -83,26 +88,25 @@
 #define ASSERT_NO_LOCKED_LOCKS
 #endif
 
-static erts_smp_mtx_t tiw_lock;
-
-
-/* BEGIN tiw_lock protected variables 
-**
-** The individual timer cells in tiw are also protected by the same mutex.
-*/
+#if 0
+#  define ERTS_TW_DEBUG
+#endif
+#if defined(DEBUG) && !defined(ERTS_TW_DEBUG)
+#  define ERTS_TW_DEBUG
+#endif
 
-#ifdef SMALL_MEMORY
-#define TIW_SIZE 8192
+#undef ERTS_TW_ASSERT
+#if defined(ERTS_TW_DEBUG)
+#  define ERTS_TW_ASSERT(E) ERTS_ASSERT(E)
 #else
-#define TIW_SIZE 65536		/* timing wheel size (should be a power of 2) */
+#  define ERTS_TW_ASSERT(E) ((void) 1)
 #endif
-static ErlTimer** tiw;		/* the timing wheel, allocated in init_time() */
-static Uint tiw_pos;		/* current position in wheel */
-static Uint tiw_nto;		/* number of timeouts in wheel */
-static Uint tiw_min;
-static ErlTimer *tiw_min_ptr;
 
-/* END tiw_lock protected variables */
+#ifdef ERTS_TW_DEBUG
+#  define ERTS_TWHEEL_BUMP_YIELD_LIMIT 5
+#else
+#  define ERTS_TWHEEL_BUMP_YIELD_LIMIT 100
+#endif
 
 /* Actual interval time chosen by sys_init_time() */
 
@@ -114,209 +118,437 @@ static int tiw_itime; /* Constant after init */
 #  define TIW_ITIME tiw_itime
 #endif
 
-erts_smp_atomic32_t do_time;	/* set at clock interrupt */
-static ERTS_INLINE erts_short_time_t do_time_read(void)
+struct ErtsTimerWheel_ {
+    ErtsTWheelTimer *w[ERTS_TIW_SIZE];
+    ErtsMonotonicTime pos;
+    Uint nto;
+    struct {
+	ErtsTWheelTimer *head;
+	ErtsTWheelTimer *tail;
+	Uint nto;
+    } at_once;
+    int yield_slot;
+    int yield_slots_left;
+    int yield_start_pos;
+    ErtsTWheelTimer sentinel;
+    int true_next_timeout_time;
+    ErtsMonotonicTime next_timeout_time;
+};
+
+static ERTS_INLINE ErtsMonotonicTime
+find_next_timeout(ErtsSchedulerData *esdp,
+		  ErtsTimerWheel *tiw,
+		  int search_all,
+		  ErtsMonotonicTime curr_time,       /* When !search_all */
+		  ErtsMonotonicTime max_search_time) /* When !search_all */
 {
-    return erts_smp_atomic32_read_acqb(&do_time);
-}
-
-static ERTS_INLINE erts_short_time_t do_time_update(void)
-{
-    return do_time_read();
-}
+    int start_ix, tiw_pos_ix;
+    ErtsTWheelTimer *p;
+    int true_min_timeout = 0;
+    ErtsMonotonicTime min_timeout, min_timeout_pos, slot_timeout_pos;
+
+    if (tiw->nto == 0) { /* no timeouts in wheel */
+	if (!search_all)
+	    min_timeout_pos = tiw->pos;
+	else {
+	    curr_time = erts_get_monotonic_time(esdp);
+	    tiw->pos = min_timeout_pos = ERTS_MONOTONIC_TO_CLKTCKS(curr_time);
+	}
+	min_timeout_pos += ERTS_MONOTONIC_TO_CLKTCKS(ERTS_MONOTONIC_DAY);
+	goto found_next;
+    }
 
-static ERTS_INLINE void do_time_init(void)
-{
-    erts_smp_atomic32_init_nob(&do_time, 0);
-}
+    slot_timeout_pos = min_timeout_pos = tiw->pos;
+    if (search_all)
+	min_timeout_pos += ERTS_MONOTONIC_TO_CLKTCKS(ERTS_MONOTONIC_DAY);
+    else
+	min_timeout_pos = ERTS_MONOTONIC_TO_CLKTCKS(curr_time + max_search_time);
 
-/* get the time (in units of TIW_ITIME) to the next timeout,
-   or -1 if there are no timeouts                     */
+    start_ix = tiw_pos_ix = (int) (tiw->pos & (ERTS_TIW_SIZE-1));
 
-static erts_short_time_t next_time_internal(void) /* PRE: tiw_lock taken by caller */
-{
-    int i, tm, nto;
-    Uint32 min;
-    ErlTimer* p;
-    erts_short_time_t dt;
-  
-    if (tiw_nto == 0)
-	return -1;	/* no timeouts in wheel */
-
-    if (tiw_min_ptr) {
-	min = tiw_min;
-	dt  = do_time_read();
-	return ((min >= dt) ? (min - dt) : 0);
-    }
-  
-    /* start going through wheel to find next timeout */
-    tm = nto = 0;
-    min = (Uint32) -1;	/* max Uint32 */
-    i = tiw_pos;
     do {
-	p = tiw[i];
-	while (p != NULL) {
-	    nto++;
-	    if (p->count == 0) {
-		/* found next timeout */
-		dt = do_time_read();
-		/* p->count is zero */
-		tiw_min_ptr = p;
-		tiw_min     = tm;
-		return ((tm >= dt) ? (tm - dt) : 0);
-	    } else {
-		/* keep shortest time in 'min' */
-		if (tm + p->count*TIW_SIZE < min) {
-		    min = tm + p->count*TIW_SIZE;
-		    tiw_min_ptr = p;
-		    tiw_min     = min;
+	if (++slot_timeout_pos >= min_timeout_pos)
+	    break;
+
+	p = tiw->w[tiw_pos_ix];
+
+	if (p) {
+	    ErtsTWheelTimer *end = p;
+
+	    do  {
+		ErtsMonotonicTime timeout_pos;
+		timeout_pos = p->timeout_pos;
+		if (min_timeout_pos > timeout_pos) {
+		    true_min_timeout = 1;
+		    min_timeout_pos = timeout_pos;
+		    if (min_timeout_pos <= slot_timeout_pos)
+			goto found_next;
 		}
-	    }
-	    p = p->next;
+		p = p->next;
+	    } while (p != end);
 	}
-	/* when we have found all timeouts the shortest time will be in min */
-	if (nto == tiw_nto) break;
-	tm++;
-	i = (i + 1) % TIW_SIZE;
-    } while (i != tiw_pos);
-    dt = do_time_read();
-    if (min <= (Uint32) dt)
-	return 0;
-    if ((min - (Uint32) dt) > (Uint32) ERTS_SHORT_TIME_T_MAX)
-	return ERTS_SHORT_TIME_T_MAX;
-    return (erts_short_time_t) (min - (Uint32) dt);
+
+	tiw_pos_ix++;
+	if (tiw_pos_ix == ERTS_TIW_SIZE)
+	    tiw_pos_ix = 0;
+    } while (start_ix != tiw_pos_ix);
+
+found_next:
+
+    min_timeout = ERTS_CLKTCKS_TO_MONOTONIC(min_timeout_pos);
+    tiw->next_timeout_time = min_timeout;
+    tiw->true_next_timeout_time = true_min_timeout;
+
+    return min_timeout;
 }
 
-static void remove_timer(ErlTimer *p) {
-    /* first */
-    if (!p->prev) {
-	tiw[p->slot] = p->next;
-	if(p->next)
-	    p->next->prev = NULL;
-    } else {
-	p->prev->next = p->next;
+static ERTS_INLINE void
+insert_timer_into_slot(ErtsTimerWheel *tiw, int slot, ErtsTWheelTimer *p)
+{
+    ERTS_TW_ASSERT(slot >= 0);
+    ERTS_TW_ASSERT(slot < ERTS_TIW_SIZE);
+    p->slot = slot;
+    if (!tiw->w[slot]) {
+	tiw->w[slot] = p;
+	p->next = p;
+	p->prev = p;
     }
+    else {
+	ErtsTWheelTimer *next, *prev;
+	next = tiw->w[slot];
+	prev = next->prev;
+	p->next = next;
+	p->prev = prev;
+	prev->next = p;
+	next->prev = p;
+    }
+}
 
-    /* last */
-    if (!p->next) {
+static ERTS_INLINE void
+remove_timer(ErtsTimerWheel *tiw, ErtsTWheelTimer *p)
+{
+    int slot = p->slot;
+    ERTS_TW_ASSERT(slot != ERTS_TWHEEL_SLOT_INACTIVE);
+
+    if (slot >= 0) {
+	/*
+	 * Timer in wheel or in circular
+	 * list of timers currently beeing
+	 * triggered (referred by sentinel).
+	 */
+	ERTS_TW_ASSERT(slot < ERTS_TIW_SIZE);
+
+	if (p->next == p) {
+	    ERTS_TW_ASSERT(tiw->w[slot] == p);
+	    tiw->w[slot] = NULL;
+	}
+	else {
+	    if (tiw->w[slot] == p)
+		tiw->w[slot] = p->next;
+	    p->prev->next = p->next;
+	    p->next->prev = p->prev;
+	}
+    }
+    else {
+	/* Timer in "at once" queue... */
+	ERTS_TW_ASSERT(slot == ERTS_TWHEEL_SLOT_AT_ONCE);
 	if (p->prev)
-	    p->prev->next = NULL;
-    } else {
-	p->next->prev = p->prev;
+	    p->prev->next = p->next;
+	else {
+	    ERTS_TW_ASSERT(tiw->at_once.head == p);
+	    tiw->at_once.head = p->next;
+	}
+	if (p->next)
+	    p->next->prev = p->prev;
+	else {
+	    ERTS_TW_ASSERT(tiw->at_once.tail == p);
+	    tiw->at_once.tail = p->prev;
+	}
+	ERTS_TW_ASSERT(tiw->at_once.nto > 0);
+	tiw->at_once.nto--;
     }
 
-    p->next = NULL;
-    p->prev = NULL;
-    /* Make sure cancel callback isn't called */
-    p->active = 0;
-    tiw_nto--;
+    p->slot = ERTS_TWHEEL_SLOT_INACTIVE;
+
+    tiw->nto--;
 }
 
-/* Private export to erl_time_sup.c */
-erts_short_time_t erts_next_time(void)
+ErtsMonotonicTime
+erts_check_next_timeout_time(ErtsSchedulerData *esdp)
 {
-    erts_short_time_t ret;
+    ErtsTimerWheel *tiw = esdp->timer_wheel;
+    if (tiw->true_next_timeout_time)
+	return tiw->next_timeout_time;
+    return find_next_timeout(esdp, tiw, 1, 0, 0);
+}
 
-    erts_smp_mtx_lock(&tiw_lock);
-    (void)do_time_update();
-    ret = next_time_internal();
-    erts_smp_mtx_unlock(&tiw_lock);
-    return ret;
+#ifndef ERTS_TW_DEBUG
+#define ERTS_DBG_CHK_SAFE_TO_SKIP_TO(TIW, TO) ((void) 0)
+#else
+#define ERTS_DBG_CHK_SAFE_TO_SKIP_TO(TIW, TO) debug_check_safe_to_skip_to((TIW), (TO))
+static void
+debug_check_safe_to_skip_to(ErtsTimerWheel *tiw, ErtsMonotonicTime skip_to_pos)
+{
+    int slots, ix;
+    ErtsTWheelTimer *tmr;
+    ErtsMonotonicTime tmp;
+
+    ix = (int) (tiw->pos & (ERTS_TIW_SIZE-1));
+    tmp = skip_to_pos - tiw->pos;
+    ERTS_TW_ASSERT(tmp >= 0);
+    if (tmp < (ErtsMonotonicTime) ERTS_TIW_SIZE)
+	slots = (int) tmp;
+    else
+	slots = ERTS_TIW_SIZE;
+
+     while (slots > 0) {
+	 tmr = tiw->w[ix];
+	 if (tmr) {
+	     ErtsTWheelTimer *end = tmr;
+	     do {
+		 ERTS_TW_ASSERT(tmr->timeout_pos > skip_to_pos);
+		 tmr = tmr->next;
+	     } while (tmr != end);
+	 }
+	 ix++;
+	 if (ix == ERTS_TIW_SIZE)
+	     ix = 0;
+	 slots--;
+    }
+}
+#endif
+
+static ERTS_INLINE void
+timeout_timer(ErtsTWheelTimer *p)
+{
+    ErlTimeoutProc timeout;
+    void *arg;
+    p->slot = ERTS_TWHEEL_SLOT_INACTIVE;
+    timeout = p->u.func.timeout;
+    arg = p->u.func.arg;
+    (*timeout)(arg);
+    ASSERT_NO_LOCKED_LOCKS;
 }
 
-static ERTS_INLINE void bump_timer_internal(erts_short_time_t dt) /* PRE: tiw_lock is write-locked */
+void
+erts_bump_timers(ErtsTimerWheel *tiw, ErtsMonotonicTime curr_time)
 {
-    Uint keep_pos;
-    Uint count;
-    ErlTimer *p, **prev, *timeout_head, **timeout_tail;
-    Uint dtime = (Uint) dt;  
-
-    /* no need to bump the position if there aren't any timeouts */
-    if (tiw_nto == 0) {
-	erts_smp_mtx_unlock(&tiw_lock);
-	return;
+    int tiw_pos_ix, slots, yielded_slot_restarted, yield_count;
+    ErtsMonotonicTime bump_to, tmp_slots, old_pos;
+
+    yield_count = ERTS_TWHEEL_BUMP_YIELD_LIMIT;
+
+    /*
+     * In order to be fair we always continue with work
+     * where we left off when restarting after a yield.
+     */
+
+    if (tiw->yield_slot >= 0) {
+	yielded_slot_restarted = 1;
+	tiw_pos_ix = tiw->yield_slot;
+	slots = tiw->yield_slots_left;
+	bump_to = tiw->pos;
+	old_pos = tiw->yield_start_pos;
+	goto restart_yielded_slot;
     }
 
-    /* if do_time > TIW_SIZE we want to go around just once */
-    count = (Uint)(dtime / TIW_SIZE) + 1;
-    keep_pos = (tiw_pos + dtime) % TIW_SIZE;
-    if (dtime > TIW_SIZE) dtime = TIW_SIZE;
-  
-    timeout_head = NULL;
-    timeout_tail = &timeout_head;
-    while (dtime > 0) {
-	/* this is to decrease the counters with the right amount */
-	/* when dtime >= TIW_SIZE */
-	if (tiw_pos == keep_pos) count--;
-	prev = &tiw[tiw_pos];
-	while ((p = *prev) != NULL) {
-	    ASSERT( p != p->next);
-	    if (p->count < count) {     /* we have a timeout */
-		/* remove min time */
-		if (tiw_min_ptr == p) {
-		    tiw_min_ptr = NULL;
-		    tiw_min = 0;
+    do {
+
+	yielded_slot_restarted = 0;
+
+	bump_to = ERTS_MONOTONIC_TO_CLKTCKS(curr_time);
+
+	while (1) {
+	    ErtsTWheelTimer *p;
+
+	    old_pos = tiw->pos;
+
+	    if (tiw->nto == 0) {
+	    empty_wheel:
+		ERTS_DBG_CHK_SAFE_TO_SKIP_TO(tiw, bump_to);
+		tiw->true_next_timeout_time = 0;
+		tiw->next_timeout_time = curr_time + ERTS_MONOTONIC_DAY;
+		tiw->pos = bump_to;
+		tiw->yield_slot = ERTS_TWHEEL_SLOT_INACTIVE;
+		return;
+	    }
+
+	    p = tiw->at_once.head;
+	    while (p) {
+		if (--yield_count <= 0) {
+		    ERTS_TW_ASSERT(tiw->nto > 0);
+		    ERTS_TW_ASSERT(tiw->at_once.nto > 0);
+		    tiw->yield_slot = ERTS_TWHEEL_SLOT_AT_ONCE;
+		    tiw->true_next_timeout_time = 1;
+		    tiw->next_timeout_time = ERTS_CLKTCKS_TO_MONOTONIC(old_pos);
+		    return;
 		}
 
-		/* Remove from list */
-		remove_timer(p);
-		*timeout_tail = p;	/* Insert in timeout queue */
-		timeout_tail = &p->next;
+		ERTS_TW_ASSERT(tiw->nto > 0);
+		ERTS_TW_ASSERT(tiw->at_once.nto > 0);
+		tiw->nto--;
+		tiw->at_once.nto--;
+		tiw->at_once.head = p->next;
+		if (p->next)
+		    p->next->prev = NULL;
+		else
+		    tiw->at_once.tail = NULL;
+
+		timeout_timer(p);
+
+		p = tiw->at_once.head;
 	    }
-	    else {
-		/* no timeout, just decrease counter */
-		p->count -= count;
-		prev = &p->next;
+
+	    if (tiw->pos >= bump_to)
+		break;
+
+	    if (tiw->nto == 0)
+		goto empty_wheel;
+
+	    if (tiw->true_next_timeout_time) {
+		ErtsMonotonicTime skip_until_pos;
+		/*
+		 * No need inspecting slots where we know no timeouts
+		 * to trigger should reside.
+		 */
+
+		skip_until_pos = ERTS_MONOTONIC_TO_CLKTCKS(tiw->next_timeout_time);
+		if (skip_until_pos > bump_to)
+		    skip_until_pos = bump_to;
+
+		skip_until_pos--;
+
+		if (skip_until_pos > tiw->pos) {
+		    ERTS_DBG_CHK_SAFE_TO_SKIP_TO(tiw, skip_until_pos);
+
+		    tiw->pos = skip_until_pos;
+		}
+	    }
+
+	    tiw_pos_ix = (int) ((tiw->pos+1) & (ERTS_TIW_SIZE-1));
+	    tmp_slots = (bump_to - tiw->pos);
+	    if (tmp_slots < (ErtsMonotonicTime) ERTS_TIW_SIZE)
+		slots = (int) tmp_slots;
+	    else
+		slots = ERTS_TIW_SIZE;
+
+	    tiw->pos = bump_to;
+
+	    while (slots > 0) {
+
+		p = tiw->w[tiw_pos_ix];
+		if (p) {
+		    if (p->next == p) {
+			ERTS_TW_ASSERT(tiw->sentinel.next == &tiw->sentinel);
+			ERTS_TW_ASSERT(tiw->sentinel.prev == &tiw->sentinel);
+		    }
+		    else {
+			tiw->sentinel.next = p->next;
+			tiw->sentinel.prev = p->prev;
+			tiw->sentinel.next->prev = &tiw->sentinel;
+			tiw->sentinel.prev->next = &tiw->sentinel;
+		    }
+		    tiw->w[tiw_pos_ix] = NULL;
+
+		    while (1) {
+
+			if (p->timeout_pos > bump_to) {
+			    /* Very unusual case... */
+			    ++yield_count;
+			    insert_timer_into_slot(tiw, tiw_pos_ix, p);
+			}
+			else {
+			    /* Normal case... */
+			    timeout_timer(p);
+			    tiw->nto--;
+			}
+
+		    restart_yielded_slot:
+
+			p = tiw->sentinel.next;
+			if (p == &tiw->sentinel) {
+			    ERTS_TW_ASSERT(tiw->sentinel.prev == &tiw->sentinel);
+			    break;
+			}
+
+			if (--yield_count <= 0) {
+			    tiw->true_next_timeout_time = 1;
+			    tiw->next_timeout_time = ERTS_CLKTCKS_TO_MONOTONIC(old_pos);
+			    tiw->yield_slot = tiw_pos_ix;
+			    tiw->yield_slots_left = slots;
+			    tiw->yield_start_pos = old_pos;
+			    return; /* Yield! */
+			}
+
+			tiw->sentinel.next = p->next;
+			p->next->prev = &tiw->sentinel;
+		    }
+		}
+		tiw_pos_ix++;
+		if (tiw_pos_ix == ERTS_TIW_SIZE)
+		    tiw_pos_ix = 0;
+		slots--;
 	    }
 	}
-	tiw_pos = (tiw_pos + 1) % TIW_SIZE;
-	dtime--;
-    }
-    tiw_pos = keep_pos;
-    if (tiw_min_ptr)
-	tiw_min -= dt;
-    
-    erts_smp_mtx_unlock(&tiw_lock);
-    
-    /* Call timedout timers callbacks */
-    while (timeout_head) {
-	p = timeout_head;
-	timeout_head = p->next;
-	/* Here comes hairy use of the timer fields!
-	 * They are reset without having the lock.
-	 * It is assumed that no code but this will
-	 * accesses any field until the ->timeout
-	 * callback is called.
-	 */
-	p->next = NULL;
-	p->prev = NULL;
-	p->slot = 0;
-	(*p->timeout)(p->arg);
-    }
-}
 
-void erts_bump_timer(erts_short_time_t dt) /* dt is value from do_time */
-{
-    erts_smp_mtx_lock(&tiw_lock);
-    bump_timer_internal(dt);
+    } while (yielded_slot_restarted);
+
+    tiw->yield_slot = ERTS_TWHEEL_SLOT_INACTIVE;
+    tiw->true_next_timeout_time = 0;
+    tiw->next_timeout_time = curr_time + ERTS_MONOTONIC_DAY;
+
+    /* Search at most two seconds ahead... */
+    (void) find_next_timeout(NULL, tiw, 0, curr_time, ERTS_SEC_TO_MONOTONIC(2));
 }
 
 Uint
 erts_timer_wheel_memory_size(void)
 {
-    return (Uint) TIW_SIZE * sizeof(ErlTimer*);
+    return sizeof(ErtsTimerWheel)*erts_no_schedulers;
 }
 
+ErtsTimerWheel *
+erts_create_timer_wheel(ErtsSchedulerData *esdp)
+{
+    ErtsMonotonicTime mtime;
+    int i;
+    ErtsTimerWheel *tiw;
+    tiw = erts_alloc_permanent_cache_aligned(ERTS_ALC_T_TIMER_WHEEL,
+					     sizeof(ErtsTimerWheel));
+    for(i = 0; i < ERTS_TIW_SIZE; i++)
+	tiw->w[i] = NULL;
+
+    mtime = erts_get_monotonic_time(esdp);
+    tiw->pos = ERTS_MONOTONIC_TO_CLKTCKS(mtime);
+    tiw->nto = 0;
+    tiw->at_once.head = NULL;
+    tiw->at_once.tail = NULL;
+    tiw->at_once.nto = 0;
+    tiw->yield_slot = ERTS_TWHEEL_SLOT_INACTIVE;
+    tiw->true_next_timeout_time = 0;
+    tiw->next_timeout_time = mtime + ERTS_MONOTONIC_DAY;
+    tiw->sentinel.next = &tiw->sentinel;
+    tiw->sentinel.prev = &tiw->sentinel;
+    return tiw;
+}
+
+ErtsNextTimeoutRef
+erts_get_next_timeout_reference(ErtsTimerWheel *tiw)
+{
+    return (ErtsNextTimeoutRef) &tiw->next_timeout_time;
+}
+
+
 /* this routine links the time cells into a free list at the start
    and sets the time queue as empty */
 void
-erts_init_time(void)
+erts_init_time(int time_correction, ErtsTimeWarpMode time_warp_mode)
 {
-    int i, itime;
+    int itime;
 
     /* system dependent init; must be done before do_time_init()
        if timer thread is enabled */
-    itime = erts_init_time_sup();
+    itime = erts_init_time_sup(time_correction, time_warp_mode);
 #ifdef TIW_ITIME_IS_CONSTANT 
     if (itime != TIW_ITIME) {
 	erl_exit(ERTS_ABORT_EXIT, "timer resolution mismatch %d != %d", itime, TIW_ITIME);
@@ -324,182 +556,104 @@ erts_init_time(void)
 #else
     tiw_itime = itime;
 #endif
-
-    erts_smp_mtx_init(&tiw_lock, "timer_wheel");
-
-    tiw = (ErlTimer**) erts_alloc(ERTS_ALC_T_TIMER_WHEEL,
-				  TIW_SIZE * sizeof(ErlTimer*));
-    for(i = 0; i < TIW_SIZE; i++)
-	tiw[i] = NULL;
-    do_time_init();
-    tiw_pos = tiw_nto = 0;
-    tiw_min_ptr = NULL;
-    tiw_min = 0;
 }
 
-
-
-
-/*
-** Insert a process into the time queue, with a timeout 't'
-*/
-static void
-insert_timer(ErlTimer* p, Uint t)
+void
+erts_twheel_set_timer(ErtsTimerWheel *tiw,
+		      ErtsTWheelTimer *p, ErlTimeoutProc timeout,
+		      ErlCancelProc cancel, void *arg,
+		      ErtsMonotonicTime timeout_pos)
 {
-    Uint tm;
-    Uint64 ticks;
+    ErtsMonotonicTime timeout_time;
 
-    /* The current slot (tiw_pos) in timing wheel is the next slot to be
-     * be processed. Hence no extra time tick is needed.
-     *
-     * (x + y - 1)/y is precisely the "number of bins" formula.
-     */
-    ticks = (t + (TIW_ITIME - 1)) / TIW_ITIME;
+    p->u.func.timeout = timeout;
+    p->u.func.cancel = cancel;
+    p->u.func.arg = arg;
 
-    /* 
-     * Ticks must be a Uint64, or the addition may overflow here,
-     * resulting in an incorrect value for p->count below.
-     */
-    ticks += do_time_update(); /* Add backlog of unprocessed time */
-    
-    /* calculate slot */
-    tm = (ticks + tiw_pos) % TIW_SIZE;
-    p->slot = (Uint) tm;
-    p->count = (Uint) (ticks / TIW_SIZE);
-  
-    /* insert at head of list at slot */
-    p->next = tiw[tm];
-    p->prev = NULL;
-    if (p->next != NULL)
-	p->next->prev = p;
-    tiw[tm] = p;
-
-
-    /* insert min time */
-    if ((tiw_nto == 0) || ((tiw_min_ptr != NULL) && (ticks < tiw_min))) {
-	tiw_min = ticks;
-	tiw_min_ptr = p;
-    }
-    if ((tiw_min_ptr == p) && (ticks > tiw_min)) {
-	/* some other timer might be 'min' now */
-	tiw_min = 0;
-	tiw_min_ptr = NULL;
-    }
+    ERTS_TW_ASSERT(p->slot == ERTS_TWHEEL_SLOT_INACTIVE);
 
-    tiw_nto++;
-}
+    if (timeout_pos <= tiw->pos) {
+	tiw->nto++;
+	tiw->at_once.nto++;
+	p->next = NULL;
+	p->prev = tiw->at_once.tail;
+	if (tiw->at_once.tail) {
+	    ERTS_TW_ASSERT(tiw->at_once.head);
+	    tiw->at_once.tail->next = p;
+	}
+	else {	
+	    ERTS_TW_ASSERT(!tiw->at_once.head);
+	    tiw->at_once.head = p;
+	}
+	tiw->at_once.tail = p;
+	p->timeout_pos = tiw->pos;
+	p->slot = ERTS_TWHEEL_SLOT_AT_ONCE;
+	timeout_time = ERTS_CLKTCKS_TO_MONOTONIC(tiw->pos);
+    }
+    else {
+	int slot;
 
-void
-erts_set_timer(ErlTimer* p, ErlTimeoutProc timeout, ErlCancelProc cancel,
-	      void* arg, Uint t)
-{
+	/* calculate slot */
+	slot = (int) (timeout_pos & (ERTS_TIW_SIZE-1));
 
-    erts_deliver_time();
-    erts_smp_mtx_lock(&tiw_lock);
-    if (p->active) { /* XXX assert ? */
-	erts_smp_mtx_unlock(&tiw_lock);
-	return;
-    }
-    p->timeout = timeout;
-    p->cancel = cancel;
-    p->arg = arg;
-    p->active = 1;
-    insert_timer(p, t);
-    erts_smp_mtx_unlock(&tiw_lock);
-#if defined(ERTS_SMP)
-    if (t <= (Uint) ERTS_SHORT_TIME_T_MAX)
-	erts_sys_schedule_interrupt_timed(1, (erts_short_time_t) t);
-#endif
-}
+	insert_timer_into_slot(tiw, slot, p);
 
-void
-erts_cancel_timer(ErlTimer* p)
-{
-    erts_smp_mtx_lock(&tiw_lock);
-    if (!p->active) { /* allow repeated cancel (drivers) */
-	erts_smp_mtx_unlock(&tiw_lock);
-	return;
-    }
+	tiw->nto++;
 
-    /* is it the 'min' timer, remove min */
-    if (p == tiw_min_ptr) {
-	tiw_min_ptr = NULL;
-	tiw_min     = 0;
+	timeout_time = ERTS_CLKTCKS_TO_MONOTONIC(timeout_pos);
+	p->timeout_pos = timeout_pos;
     }
 
-    remove_timer(p);
-    p->slot = p->count = 0;
-
-    if (p->cancel != NULL) {
-	erts_smp_mtx_unlock(&tiw_lock);
-	(*p->cancel)(p->arg);
-	return;
+    if (timeout_time < tiw->next_timeout_time) {
+	tiw->true_next_timeout_time = 1;
+	tiw->next_timeout_time = timeout_time;
     }
-    erts_smp_mtx_unlock(&tiw_lock);
 }
 
-/*
-  Returns the amount of time left in ms until the timer 'p' is triggered.
-  0 is returned if 'p' isn't active.
-  0 is returned also if the timer is overdue (i.e., would have triggered
-  immediately if it hadn't been cancelled).
-*/
-Uint
-erts_time_left(ErlTimer *p)
+void
+erts_twheel_cancel_timer(ErtsTimerWheel *tiw, ErtsTWheelTimer *p)
 {
-    Uint left;
-    erts_short_time_t dt;
-
-    erts_smp_mtx_lock(&tiw_lock);
-
-    if (!p->active) {
-	erts_smp_mtx_unlock(&tiw_lock);
-	return 0;
+    if (p->slot != ERTS_TWHEEL_SLOT_INACTIVE) {
+	ErlCancelProc cancel;
+	void *arg;
+	remove_timer(tiw, p);
+	cancel = p->u.func.cancel;
+	arg = p->u.func.arg;
+	if (cancel)
+	    (*cancel)(arg);
     }
-
-    if (p->slot < tiw_pos)
-	left = (p->count + 1) * TIW_SIZE + p->slot - tiw_pos;
-    else
-	left = p->count * TIW_SIZE + p->slot - tiw_pos;
-    dt = do_time_read();
-    if (left < dt)
-	left = 0;
-    else
-	left -= dt;
-
-    erts_smp_mtx_unlock(&tiw_lock);
-
-    return (Uint) left * TIW_ITIME;
 }
 
-#ifdef DEBUG
+#ifdef ERTS_TW_DEBUG
 void erts_p_slpq(void)
 {
+    erts_printf("Not yet implemented...\n");
+#if 0
+    ErtsMonotonicTime current_time = erts_get_monotonic_time(NULL);
     int i;
-    ErlTimer* p;
+    ErtsTWheelTimer* p;
   
-    erts_smp_mtx_lock(&tiw_lock);
-
     /* print the whole wheel, starting at the current position */
-    erts_printf("\ntiw_pos = %d tiw_nto %d\n", tiw_pos, tiw_nto);
-    i = tiw_pos;
-    if (tiw[i] != NULL) {
+    erts_printf("\ncurrent time = %bps tiw_pos = %d tiw_nto %d\n",
+		current_time, tiw->pos, tiw->nto);
+    i = tiw->pos;
+    if (tiw->w[i] != NULL) {
 	erts_printf("%d:\n", i);
-	for(p = tiw[i]; p != NULL; p = p->next) {
-	    erts_printf(" (count %d, slot %d)\n",
-			p->count, p->slot);
+	for(p = tiw->w[i]; p != NULL; p = p->next) {
+	    erts_printf(" (timeout time %bps, slot %d)\n",
+			ERTS_CLKTCKS_TO_MONOTONIC(p->timeout_pos),
+			p->slot);
 	}
     }
-    for(i = (i+1)%TIW_SIZE; i != tiw_pos; i = (i+1)%TIW_SIZE) {
-	if (tiw[i] != NULL) {
+    for(i = ((i+1) & (ERTS_TIW_SIZE-1)); i != (tiw->pos & (ERTS_TIW_SIZE-1)); i = ((i+1) & (ERTS_TIW_SIZE-1))) {
+	if (tiw->w[i] != NULL) {
 	    erts_printf("%d:\n", i);
-	    for(p = tiw[i]; p != NULL; p = p->next) {
-		erts_printf(" (count %d, slot %d)\n",
-			    p->count, p->slot);
+	    for(p = tiw->w[i]; p != NULL; p = p->next) {
+		erts_printf(" (timeout time %bps, slot %d)\n",
+			    ERTS_CLKTCKS_TO_MONOTONIC(p->timeout_pos), p->slot);
 	    }
 	}
     }
-
-    erts_smp_mtx_unlock(&tiw_lock);
+#endif
 }
-#endif /* DEBUG */
+#endif /* ERTS_TW_DEBUG */
diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c
index f810fca9a4..cecd88197e 100644
--- a/erts/emulator/beam/utils.c
+++ b/erts/emulator/beam/utils.c
@@ -49,6 +49,12 @@
 #include "beam_bp.h"
 #include "erl_ptab.h"
 #include "erl_check_io.h"
+#include "erl_bif_unique.h"
+#define ERTS_WANT_TIMER_WHEEL_API
+#include "erl_time.h"
+#ifdef HIPE
+#  include "hipe_mode_switch.h"
+#endif
 
 #undef M_TRIM_THRESHOLD
 #undef M_TOP_PAD
@@ -187,12 +193,18 @@ erts_set_hole_marker(Eterm* ptr, Uint sz)
  * Helper function for the ESTACK macros defined in global.h.
  */
 void
-erl_grow_estack(ErtsEStack* s, Eterm* default_estack)
+erl_grow_estack(ErtsEStack* s, Uint need)
 {
     Uint old_size = (s->end - s->start);
-    Uint new_size = old_size * 2;
+    Uint new_size;
     Uint sp_offs = s->sp - s->start;
-    if (s->start != default_estack) {
+
+    if (need < old_size)
+	new_size = 2*old_size;
+    else
+	new_size = ((need / old_size) + 2) * old_size;
+
+    if (s->start != s->edefault) {
 	s->start = erts_realloc(s->alloc_type, s->start,
 				new_size*sizeof(Eterm));
     } else {
@@ -207,12 +219,18 @@ erl_grow_estack(ErtsEStack* s, Eterm* default_estack)
  * Helper function for the WSTACK macros defined in global.h.
  */
 void
-erl_grow_wstack(ErtsWStack* s, UWord* default_wstack)
+erl_grow_wstack(ErtsWStack* s, Uint need)
 {
     Uint old_size = (s->wend - s->wstart);
-    Uint new_size = old_size * 2;
+    Uint new_size;
     Uint sp_offs = s->wsp - s->wstart;
-    if (s->wstart != default_wstack) {
+
+    if (need < old_size)
+	new_size = 2 * old_size;
+    else
+	new_size = ((need / old_size) + 2) * old_size;
+
+    if (s->wstart != s->wdefault) {
 	s->wstart = erts_realloc(s->alloc_type, s->wstart,
 				 new_size*sizeof(UWord));
     } else {
@@ -224,6 +242,32 @@ erl_grow_wstack(ErtsWStack* s, UWord* default_wstack)
     s->wsp = s->wstart + sp_offs;
 }
 
+/*
+ * Helper function for the PSTACK macros defined in global.h.
+ */
+void
+erl_grow_pstack(ErtsPStack* s, void* default_pstack, unsigned need_bytes)
+{
+    Uint old_size = s->pend - s->pstart;
+    Uint new_size;
+    Uint sp_offs = s->psp - s->pstart;
+
+    if (need_bytes < old_size)
+	new_size = 2 * old_size;
+    else
+	new_size = ((need_bytes / old_size) + 2) * old_size;
+
+    if (s->pstart != default_pstack) {
+	s->pstart = erts_realloc(s->alloc_type, s->pstart, new_size);
+    } else {
+	byte* new_ptr = erts_alloc(s->alloc_type, new_size);
+	sys_memcpy(new_ptr, s->pstart, old_size);
+	s->pstart = new_ptr;
+    }
+    s->pend = s->pstart + new_size;
+    s->psp = s->pstart + sp_offs;
+}
+
 /* CTYPE macros */
 
 #define LATIN1
@@ -311,6 +355,17 @@ int erts_fit_in_bits_int32(Sint32 value)
     return fit_in_bits((Sint64) (Uint32) value, 4);
 }
 
+int erts_fit_in_bits_uint(Uint value)
+{
+#if ERTS_SIZEOF_ETERM == 4
+    return fit_in_bits((Sint64) (Uint32) value, 4);
+#elif ERTS_SIZEOF_ETERM == 8
+    return fit_in_bits(value, 5);
+#else
+# error "No way, Jose"
+#endif
+}
+
 int
 erts_print(int to, void *arg, char *format, ...)
 {
@@ -789,10 +844,10 @@ Uint32 make_hash(Eterm term_arg)
     unsigned op;
 
     /* Must not collide with the real tag_val_def's: */
-#define MAKE_HASH_TUPLE_OP 0x11
-#define MAKE_HASH_TERM_ARRAY_OP 0x12
-#define MAKE_HASH_CDR_PRE_OP 0x13
-#define	MAKE_HASH_CDR_POST_OP 0x14
+#define MAKE_HASH_TUPLE_OP      (FIRST_VACANT_TAG_DEF)
+#define MAKE_HASH_TERM_ARRAY_OP (FIRST_VACANT_TAG_DEF+1)
+#define MAKE_HASH_CDR_PRE_OP    (FIRST_VACANT_TAG_DEF+2)
+#define MAKE_HASH_CDR_POST_OP   (FIRST_VACANT_TAG_DEF+3)
 
     /* 
     ** Convenience macro for calculating a bytewise hash on an unsigned 32 bit 
@@ -902,12 +957,15 @@ tail_recur:
 	UINT32_HASH_RET(external_ref_numbers(term)[0],FUNNY_NUMBER9,FUNNY_NUMBER10);
     case FLOAT_DEF: 
 	{
-	    FloatDef ff;
-	    GET_DOUBLE(term, ff);
-	    hash = hash*FUNNY_NUMBER6 + (ff.fw[0] ^ ff.fw[1]);
-	    break;
+            FloatDef ff;
+            GET_DOUBLE(term, ff);
+            if (ff.fd == 0.0f) {
+                /* ensure positive 0.0 */
+                ff.fd = erts_get_positive_zero_float();
+            }
+            hash = hash*FUNNY_NUMBER6 + (ff.fw[0] ^ ff.fw[1]);
+            break;
 	}
-
     case MAKE_HASH_CDR_PRE_OP:
 	term = (Eterm) WSTACK_POP(stack);
 	if (is_not_list(term)) {
@@ -972,23 +1030,8 @@ tail_recur:
 	    break;
 	}	
     case MAP_DEF:
-	{
-	    map_t *mp = (map_t *)map_val(term);
-	    int size  = map_get_size(mp);
-	    Eterm *ks = map_get_keys(mp);
-	    Eterm *vs = map_get_values(mp);
-
-	    /* Use a prime with size to remedy some of
-	     * the {} and <<>> hash problems */
-	    hash = hash*FUNNY_NUMBER13 + FUNNY_NUMBER14 + size;
-	    if (size == 0)
-		break;
-
-	    /* push values first */
-	    WSTACK_PUSH3(stack, (UWord)vs, (UWord) size, MAKE_HASH_TERM_ARRAY_OP);
-	    WSTACK_PUSH3(stack, (UWord)ks, (UWord) size, MAKE_HASH_TERM_ARRAY_OP);
-	    break;
-	}
+        hash = hash*FUNNY_NUMBER13 + FUNNY_NUMBER14 + make_hash2(term);
+        break;
     case TUPLE_DEF: 
 	{
 	    Eterm* ptr = tuple_val(term);
@@ -1092,11 +1135,12 @@ Uint32
 make_hash2(Eterm term)
 {
     Uint32 hash;
-    Uint32 hash_xor_keys   = 0;
-    Uint32 hash_xor_values = 0;
+    Uint32 hash_xor_pairs;
     DeclareTmpHeapNoproc(tmp_big,2);
 
-/* (HCONST * {2, ..., 16}) mod 2^32 */
+    ERTS_UNDEF(hash_xor_pairs, 0);
+
+/* (HCONST * {2, ..., 22}) mod 2^32 */
 #define HCONST_2 0x3c6ef372UL
 #define HCONST_3 0xdaa66d2bUL
 #define HCONST_4 0x78dde6e4UL
@@ -1112,10 +1156,16 @@ make_hash2(Eterm term)
 #define HCONST_14 0xa708a81eUL
 #define HCONST_15 0x454021d7UL
 #define HCONST_16 0xe3779b90UL
+#define HCONST_17 0x81af1549UL
+#define HCONST_18 0x1fe68f02UL
+#define HCONST_19 0xbe1e08bbUL
+#define HCONST_20 0x5c558274UL
+#define HCONST_21 0xfa8cfc2dUL
+#define HCONST_22 0x98c475e6UL
 
 #define HASH_MAP_TAIL (_make_header(1,_TAG_HEADER_REF))
-#define HASH_MAP_KEY  (_make_header(2,_TAG_HEADER_REF))
-#define HASH_MAP_VAL  (_make_header(3,_TAG_HEADER_REF))
+#define HASH_MAP_PAIR (_make_header(2,_TAG_HEADER_REF))
+#define HASH_CDR      (_make_header(3,_TAG_HEADER_REF))
 
 #define UINT32_HASH_2(Expr1, Expr2, AConst)       \
          do {                                     \
@@ -1138,6 +1188,13 @@ make_hash2(Eterm term)
 	} while(0)
 
 #define IS_SSMALL28(x) (((Uint) (((x) >> (28-1)) + 1)) < 2)
+
+#ifdef ARCH_64
+#  define POINTER_HASH(Ptr, AConst) UINT32_HASH_2((Uint32)(UWord)(Ptr), (((UWord)(Ptr)) >> 32), AConst)
+#else
+#  define POINTER_HASH(Ptr, AConst) UINT32_HASH(Ptr, AConst)
+#endif
+
     /* Optimization. Simple cases before declaration of estack. */
     if (primary_tag(term) == TAG_PRIMARY_IMMED1) {
 	switch (term & _TAG_IMMED1_MASK) {
@@ -1192,9 +1249,9 @@ make_hash2(Eterm term)
 	    if (c > 0)
 		UINT32_HASH(sh, HCONST_4);
 	    if (is_list(term)) {
-		term = *ptr;
-		tmp = *++ptr;
-		ESTACK_PUSH(s, tmp);	    
+		tmp = CDR(ptr);
+                ESTACK_PUSH(s, tmp);
+		term = CAR(ptr);
 	    }
 	}
 	break;
@@ -1211,51 +1268,90 @@ make_hash2(Eterm term)
 		UINT32_HASH(arity, HCONST_9);
 		if (arity == 0) /* Empty tuple */ 
 		    goto hash2_common;
-		for (i = arity; i >= 1; i--) {
-		    tmp = elem[i];
-		    ESTACK_PUSH(s, tmp);
+		for (i = arity; ; i--) {
+		    term = elem[i];
+                    if (i == 1)
+                        break;
+                    ESTACK_PUSH(s, term);
 		}
-		goto hash2_common;
-	    }
-	    break;
-	    case MAP_SUBTAG:
-	    {
-		map_t *mp = (map_t *)map_val(term);
-		int i;
-		int size  = map_get_size(mp);
-		Eterm *ks = map_get_keys(mp);
-		Eterm *vs = map_get_values(mp);
-		UINT32_HASH(size, HCONST_16);
-		if (size == 0) {
-		    goto hash2_common;
-		}
-		ESTACK_PUSH(s, hash_xor_values);
-		ESTACK_PUSH(s, hash_xor_keys);
-		ESTACK_PUSH(s, hash);
-		ESTACK_PUSH(s, HASH_MAP_TAIL);
-		hash = 0;
-		hash_xor_keys = 0;
-		hash_xor_values = 0;
-		for (i = size - 1; i >= 0; i--) {
-		    tmp = vs[i];
-		    ESTACK_PUSH(s, HASH_MAP_VAL);
-		    ESTACK_PUSH(s, tmp);
-		}
-		/* We do not want to expose the tuple representation.
-		 * Do not push the keys as a tuple.
-		 */
-		for (i = size - 1; i >= 0; i--) {
-		    tmp = ks[i];
-		    ESTACK_PUSH(s, HASH_MAP_KEY);
-		    ESTACK_PUSH(s, tmp);
-		}
-		goto hash2_common;
 	    }
 	    break;
+            case MAP_SUBTAG:
+            {
+                Eterm* ptr = boxed_val(term) + 1;
+                Uint size;
+                int i;
+                switch (hdr & _HEADER_MAP_SUBTAG_MASK) {
+                case HAMT_SUBTAG_HEAD_FLATMAP:
+                {
+                    flatmap_t *mp = (flatmap_t *)flatmap_val(term);
+                    Eterm *ks = flatmap_get_keys(mp);
+                    Eterm *vs = flatmap_get_values(mp);
+                    size      = flatmap_get_size(mp);
+                    UINT32_HASH(size, HCONST_16);
+                    if (size == 0)
+                        goto hash2_common;
+
+                    /* We want a portable hash function that is *independent* of
+                     * the order in which keys and values are encountered.
+                     * We therefore calculate context independent hashes for all    				      .
+                     * key-value pairs and then xor them together.
+                     */
+                    ESTACK_PUSH(s, hash_xor_pairs);
+                    ESTACK_PUSH(s, hash);
+                    ESTACK_PUSH(s, HASH_MAP_TAIL);
+                    hash = 0;
+                    hash_xor_pairs = 0;
+                    for (i = size - 1; i >= 0; i--) {
+                        ESTACK_PUSH(s, HASH_MAP_PAIR);
+                        ESTACK_PUSH(s, vs[i]);
+                        ESTACK_PUSH(s, ks[i]);
+                    }
+                    goto hash2_common;
+                }
+
+                case HAMT_SUBTAG_HEAD_ARRAY:
+                case HAMT_SUBTAG_HEAD_BITMAP:
+                    size = *ptr++;
+                    UINT32_HASH(size, HCONST_16);
+                    if (size == 0)
+                        goto hash2_common;
+                    ESTACK_PUSH(s, hash_xor_pairs);
+                    ESTACK_PUSH(s, hash);
+                    ESTACK_PUSH(s, HASH_MAP_TAIL);
+                    hash = 0;
+                    hash_xor_pairs = 0;
+                }
+                switch (hdr & _HEADER_MAP_SUBTAG_MASK) {
+                case HAMT_SUBTAG_HEAD_ARRAY:
+                    i = 16;
+                    break;
+                case HAMT_SUBTAG_HEAD_BITMAP:
+                case HAMT_SUBTAG_NODE_BITMAP:
+                    i = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+                    break;
+                default:
+                    erl_exit(1, "bad header");
+                }
+                while (i) {
+                    if (is_list(*ptr)) {
+                        Eterm* cons = list_val(*ptr);
+                        ESTACK_PUSH(s, HASH_MAP_PAIR);
+                        ESTACK_PUSH(s, CDR(cons));
+                        ESTACK_PUSH(s, CAR(cons));
+                    }
+                    else {
+                        ASSERT(is_boxed(*ptr));
+                        ESTACK_PUSH(s, *ptr);
+                    }
+                    i--; ptr++;
+                }
+                goto hash2_common;
+            }
+            break;
 	    case EXPORT_SUBTAG:
 	    {
 		Export* ep = *((Export **) (export_val(term) + 1));
-
 		UINT32_HASH_2
 		    (ep->code[2], 
 		     atom_tab(atom_val(ep->code[0]))->slot.bucket.hvalue,
@@ -1270,7 +1366,6 @@ make_hash2(Eterm term)
 	    {
 		ErlFunThing* funp = (ErlFunThing *) fun_val(term);
 		Uint num_free = funp->num_free;
-
 		UINT32_HASH_2
 		    (num_free, 
 		     atom_tab(atom_val(funp->fe->module))->slot.bucket.hvalue,
@@ -1351,7 +1446,8 @@ make_hash2(Eterm term)
 		do {
 		    Uint t;
 		    Uint32 x, y;
-		    t = i < n ? BIG_DIGIT(ptr, i++) : 0;
+                    ASSERT(i < n);
+		    t = BIG_DIGIT(ptr, i++);
 		    x = t & 0xffffffff;
 		    y = t >> 32;
 		    UINT32_HASH_2(x, y, con);
@@ -1384,6 +1480,10 @@ make_hash2(Eterm term)
 	    {
 		FloatDef ff;
 		GET_DOUBLE(term, ff);
+                if (ff.fd == 0.0f) {
+                    /* ensure positive 0.0 */
+                    ff.fd = erts_get_positive_zero_float();
+                }
 #if defined(WORDS_BIGENDIAN) || defined(DOUBLE_MIDDLE_ENDIAN)
 		UINT32_HASH_2(ff.fw[0], ff.fw[1], HCONST_12);
 #else
@@ -1459,20 +1559,397 @@ make_hash2(Eterm term)
 	    switch (term) {
 		case HASH_MAP_TAIL: {
 		    hash = (Uint32) ESTACK_POP(s);
-		    UINT32_HASH(hash_xor_keys, HCONST_16);
-		    UINT32_HASH(hash_xor_values, HCONST_16);
-		    hash_xor_keys = (Uint32) ESTACK_POP(s);
-		    hash_xor_values = (Uint32) ESTACK_POP(s);
+                    UINT32_HASH(hash_xor_pairs, HCONST_19);
+		    hash_xor_pairs = (Uint32) ESTACK_POP(s);
 		    goto hash2_common;
 		}
-		case HASH_MAP_KEY:
-		    hash_xor_keys ^= hash;
+		case HASH_MAP_PAIR:
+		    hash_xor_pairs ^= hash;
 		    hash = 0;
 		    goto hash2_common;
-		case HASH_MAP_VAL:
-		    hash_xor_values ^= hash;
+		default:
+		    break;
+	    }
+	}
+    }
+    }
+}
+
+/* Term hash function for internal use.
+ *
+ * Limitation #1: Is not "portable" in any way between different VM instances.
+ *
+ * Limitation #2: The hash value is only valid as long as the term exists
+ * somewhere in the VM. Why? Because external pids, ports and refs are hashed
+ * by mixing the node *pointer* value. If a node disappears and later reappears
+ * with a new ErlNode struct, externals from that node will hash different than
+ * before.
+ *
+ * One IMPORTANT property must hold (for hamt).
+ * EVERY BIT of the term that is significant for equality (see EQ)
+ * MUST BE USED AS INPUT FOR THE HASH. Two different terms must always have a
+ * chance of hashing different when salted: hash([Salt|A]) vs hash([Salt|B]).
+ *
+ * This is why we can not use cached hash values for atoms for example.
+ *
+ */
+
+#define CONST_HASH(AConst)                              \
+do {  /* Lightweight mixing of constant (type info) */  \
+    hash ^= AConst;                                     \
+    hash = (hash << 17) ^ (hash >> (32-17));            \
+} while (0)
+
+Uint32
+make_internal_hash(Eterm term)
+{
+    Uint32 hash;
+    Uint32 hash_xor_pairs;
+
+    ERTS_UNDEF(hash_xor_pairs, 0);
+
+    /* Optimization. Simple cases before declaration of estack. */
+    if (primary_tag(term) == TAG_PRIMARY_IMMED1) {
+        hash = 0;
+    #if ERTS_SIZEOF_ETERM == 8
+        UINT32_HASH_2((Uint32)term, (Uint32)(term >> 32), HCONST);
+    #elif ERTS_SIZEOF_ETERM == 4
+        UINT32_HASH(term, HCONST);
+    #else
+    #  error "No you don't"
+    #endif
+        return hash;
+    }
+    {
+    Eterm tmp;
+    DECLARE_ESTACK(s);
+
+    hash = 0;
+    for (;;) {
+	switch (primary_tag(term)) {
+	case TAG_PRIMARY_LIST:
+	{
+	    int c = 0;
+	    Uint32 sh = 0;
+	    Eterm* ptr = list_val(term);
+	    while (is_byte(*ptr)) {
+		/* Optimization for strings. */
+		sh = (sh << 8) + unsigned_val(*ptr);
+		if (c == 3) {
+		    UINT32_HASH(sh, HCONST_4);
+		    c = sh = 0;
+		} else {
+		    c++;
+		}
+		term = CDR(ptr);
+		if (is_not_list(term))
+		    break;
+		ptr = list_val(term);
+	    }
+            if (c > 0)
+                UINT32_HASH_2(sh, (Uint32)c, HCONST_22);
+
+	    if (is_list(term)) {
+		tmp = CDR(ptr);
+                CONST_HASH(HCONST_17);  /* Hash CAR in cons cell */
+                ESTACK_PUSH(s, tmp);
+                if (is_not_list(tmp)) {
+                    ESTACK_PUSH(s, HASH_CDR);
+                }
+		term = CAR(ptr);
+	    }
+	}
+	break;
+	case TAG_PRIMARY_BOXED:
+	{
+	    Eterm hdr = *boxed_val(term);
+	    ASSERT(is_header(hdr));
+	    switch (hdr & _TAG_HEADER_MASK) {
+	    case ARITYVAL_SUBTAG:
+	    {
+		int i;
+		int arity = header_arity(hdr);
+		Eterm* elem = tuple_val(term);
+		UINT32_HASH(arity, HCONST_9);
+		if (arity == 0) /* Empty tuple */
+		    goto pop_next;
+		for (i = arity; ; i--) {
+		    term = elem[i];
+                    if (i == 1)
+                        break;
+                    ESTACK_PUSH(s, term);
+		}
+	    }
+	    break;
+
+            case MAP_SUBTAG:
+            {
+                Eterm* ptr = boxed_val(term) + 1;
+                Uint size;
+                int i;
+                switch (hdr & _HEADER_MAP_SUBTAG_MASK) {
+                case HAMT_SUBTAG_HEAD_FLATMAP:
+                {
+                    flatmap_t *mp = (flatmap_t *)flatmap_val(term);
+                    Eterm *ks = flatmap_get_keys(mp);
+                    Eterm *vs = flatmap_get_values(mp);
+                    size      = flatmap_get_size(mp);
+                    UINT32_HASH(size, HCONST_16);
+                    if (size == 0)
+                        goto pop_next;
+
+                    /* We want a hash function that is *independent* of
+                     * the order in which keys and values are encountered.
+                     * We therefore calculate context independent hashes for all    				      .
+                     * key-value pairs and then xor them together.
+                     */
+                    ESTACK_PUSH(s, hash_xor_pairs);
+                    ESTACK_PUSH(s, hash);
+                    ESTACK_PUSH(s, HASH_MAP_TAIL);
+                    hash = 0;
+                    hash_xor_pairs = 0;
+                    for (i = size - 1; i >= 0; i--) {
+                        ESTACK_PUSH(s, HASH_MAP_PAIR);
+                        ESTACK_PUSH(s, vs[i]);
+                        ESTACK_PUSH(s, ks[i]);
+                    }
+                    goto pop_next;
+                }
+                case HAMT_SUBTAG_HEAD_ARRAY:
+                case HAMT_SUBTAG_HEAD_BITMAP:
+                    size = *ptr++;
+                    UINT32_HASH(size, HCONST_16);
+                    if (size == 0)
+                        goto pop_next;
+                    ESTACK_PUSH(s, hash_xor_pairs);
+                    ESTACK_PUSH(s, hash);
+                    ESTACK_PUSH(s, HASH_MAP_TAIL);
+                    hash = 0;
+                    hash_xor_pairs = 0;
+                }
+                switch (hdr & _HEADER_MAP_SUBTAG_MASK) {
+                case HAMT_SUBTAG_HEAD_ARRAY:
+                    i = 16;
+                    break;
+                case HAMT_SUBTAG_HEAD_BITMAP:
+                case HAMT_SUBTAG_NODE_BITMAP:
+                    i = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+                    break;
+                default:
+                    erl_exit(1, "bad header");
+                }
+                while (i) {
+                    if (is_list(*ptr)) {
+                        Eterm* cons = list_val(*ptr);
+                        ESTACK_PUSH(s, HASH_MAP_PAIR);
+                        ESTACK_PUSH(s, CDR(cons));
+                        ESTACK_PUSH(s, CAR(cons));
+                    }
+                    else {
+                        ASSERT(is_boxed(*ptr));
+                        ESTACK_PUSH(s, *ptr);
+                    }
+                    i--; ptr++;
+                }
+                goto pop_next;
+            }
+            break;
+	    case EXPORT_SUBTAG:
+	    {
+		Export* ep = *((Export **) (export_val(term) + 1));
+                /* Assumes Export entries never moves */
+                POINTER_HASH(ep, HCONST_14);
+		goto pop_next;
+	    }
+
+	    case FUN_SUBTAG:
+	    {
+		ErlFunThing* funp = (ErlFunThing *) fun_val(term);
+		Uint num_free = funp->num_free;
+                UINT32_HASH_2(num_free, funp->fe->module, HCONST_20);
+                UINT32_HASH_2(funp->fe->old_index, funp->fe->old_uniq, HCONST_21);
+		if (num_free == 0) {
+		    goto pop_next;
+		} else {
+		    Eterm* bptr = funp->env + num_free - 1;
+		    while (num_free-- > 1) {
+			term = *bptr--;
+			ESTACK_PUSH(s, term);
+		    }
+		    term = *bptr;
+		}
+	    }
+	    break;
+	    case REFC_BINARY_SUBTAG:
+	    case HEAP_BINARY_SUBTAG:
+	    case SUB_BINARY_SUBTAG:
+	    {
+		byte* bptr;
+		unsigned sz = binary_size(term);
+		Uint32 con = HCONST_13 + hash;
+		Uint bitoffs;
+		Uint bitsize;
+
+		ERTS_GET_BINARY_BYTES(term, bptr, bitoffs, bitsize);
+		if (sz == 0 && bitsize == 0) {
+		    hash = con;
+		} else {
+		    if (bitoffs == 0) {
+			hash = block_hash(bptr, sz, con);
+			if (bitsize > 0) {
+			    UINT32_HASH_2(bitsize, (bptr[sz] >> (8 - bitsize)),
+					  HCONST_15);
+			}
+		    } else {
+			byte* buf = (byte *) erts_alloc(ERTS_ALC_T_TMP,
+							sz + (bitsize != 0));
+			erts_copy_bits(bptr, bitoffs, 1, buf, 0, 1, sz*8+bitsize);
+			hash = block_hash(buf, sz, con);
+			if (bitsize > 0) {
+			    UINT32_HASH_2(bitsize, (buf[sz] >> (8 - bitsize)),
+					  HCONST_15);
+			}
+			erts_free(ERTS_ALC_T_TMP, (void *) buf);
+		    }
+		}
+		goto pop_next;
+	    }
+	    break;
+	    case POS_BIG_SUBTAG:
+	    case NEG_BIG_SUBTAG:
+	    {
+		Eterm* ptr = big_val(term);
+		Uint i = 0;
+		Uint n = BIG_SIZE(ptr);
+		Uint32 con = BIG_SIGN(ptr) ? HCONST_10 : HCONST_11;
+#if D_EXP == 16
+		do {
+		    Uint32 x, y;
+		    x = i < n ? BIG_DIGIT(ptr, i++) : 0;
+		    x += (Uint32)(i < n ? BIG_DIGIT(ptr, i++) : 0) << 16;
+		    y = i < n ? BIG_DIGIT(ptr, i++) : 0;
+		    y += (Uint32)(i < n ? BIG_DIGIT(ptr, i++) : 0) << 16;
+		    UINT32_HASH_2(x, y, con);
+		} while (i < n);
+#elif D_EXP == 32
+		do {
+		    Uint32 x, y;
+		    x = i < n ? BIG_DIGIT(ptr, i++) : 0;
+		    y = i < n ? BIG_DIGIT(ptr, i++) : 0;
+		    UINT32_HASH_2(x, y, con);
+		} while (i < n);
+#elif D_EXP == 64
+		do {
+		    Uint t;
+		    Uint32 x, y;
+                    ASSERT(i < n);
+		    t = BIG_DIGIT(ptr, i++);
+		    x = t & 0xffffffff;
+		    y = t >> 32;
+		    UINT32_HASH_2(x, y, con);
+		} while (i < n);
+#else
+#error "unsupported D_EXP size"
+#endif
+		goto pop_next;
+	    }
+	    break;
+	    case REF_SUBTAG:
+		UINT32_HASH(internal_ref_numbers(term)[0], HCONST_7);
+                ASSERT(internal_ref_no_of_numbers(term) == 3);
+                UINT32_HASH_2(internal_ref_numbers(term)[1],
+                              internal_ref_numbers(term)[2], HCONST_8);
+                goto pop_next;
+
+            case EXTERNAL_REF_SUBTAG:
+            {
+                ExternalThing* thing = external_thing_ptr(term);
+
+                ASSERT(external_thing_ref_no_of_numbers(thing) == 3);
+                /* See limitation #2 */
+            #ifdef ARCH_64
+                POINTER_HASH(thing->node, HCONST_7);
+                UINT32_HASH(external_thing_ref_numbers(thing)[0], HCONST_7);
+            #else
+                UINT32_HASH_2(thing->node,
+                              external_thing_ref_numbers(thing)[0], HCONST_7);
+            #endif
+                UINT32_HASH_2(external_thing_ref_numbers(thing)[1],
+                              external_thing_ref_numbers(thing)[2], HCONST_8);
+                goto pop_next;
+            }
+            case EXTERNAL_PID_SUBTAG: {
+                ExternalThing* thing = external_thing_ptr(term);
+                /* See limitation #2 */
+            #ifdef ARCH_64
+                POINTER_HASH(thing->node, HCONST_5);
+                UINT32_HASH(thing->data.ui[0], HCONST_5);
+            #else
+                UINT32_HASH_2(thing->node, thing->data.ui[0], HCONST_5);
+            #endif
+		goto pop_next;
+            }
+	    case EXTERNAL_PORT_SUBTAG: {
+                ExternalThing* thing = external_thing_ptr(term);
+                /* See limitation #2 */
+            #ifdef ARCH_64
+                POINTER_HASH(thing->node, HCONST_6);
+                UINT32_HASH(thing->data.ui[0], HCONST_6);
+            #else
+                UINT32_HASH_2(thing->node, thing->data.ui[0], HCONST_6);
+            #endif
+		goto pop_next;
+            }
+	    case FLOAT_SUBTAG:
+	    {
+		FloatDef ff;
+		GET_DOUBLE(term, ff);
+                if (ff.fd == 0.0f) {
+                    /* ensure positive 0.0 */
+                    ff.fd = erts_get_positive_zero_float();
+                }
+		UINT32_HASH_2(ff.fw[0], ff.fw[1], HCONST_12);
+		goto pop_next;
+	    }
+	    default:
+		erl_exit(1, "Invalid tag in make_hash2(0x%X)\n", term);
+	    }
+	}
+	break;
+        case TAG_PRIMARY_IMMED1:
+        #if ERTS_SIZEOF_ETERM == 8
+            UINT32_HASH_2((Uint32)term, (Uint32)(term >> 32), HCONST);
+        #else
+            UINT32_HASH(term, HCONST);
+        #endif
+            goto pop_next;
+
+	default:
+	    erl_exit(1, "Invalid tag in make_hash2(0x%X)\n", term);
+
+	pop_next:
+	    if (ESTACK_ISEMPTY(s)) {
+		DESTROY_ESTACK(s);
+		return hash;
+	    }
+
+	    term = ESTACK_POP(s);
+
+	    switch (term) {
+		case HASH_MAP_TAIL: {
+		    hash = (Uint32) ESTACK_POP(s);
+                    UINT32_HASH(hash_xor_pairs, HCONST_19);
+		    hash_xor_pairs = (Uint32) ESTACK_POP(s);
+		    goto pop_next;
+		}
+		case HASH_MAP_PAIR:
+		    hash_xor_pairs ^= hash;
 		    hash = 0;
-		    goto hash2_common;
+		    goto pop_next;
+
+	        case HASH_CDR:
+		    CONST_HASH(HCONST_18);   /* Hash CDR i cons cell */
+		    goto pop_next;
 		default:
 		    break;
 	    }
@@ -1480,9 +1957,10 @@ make_hash2(Eterm term)
     }
     }
 
+#undef CONST_HASH
 #undef HASH_MAP_TAIL
-#undef HASH_MAP_KEY
-#undef HASH_MAP_VAL
+#undef HASH_MAP_PAIR
+#undef HASH_CDR
 
 #undef UINT32_HASH_2
 #undef UINT32_HASH
@@ -1613,12 +2091,15 @@ tail_recur:
 	break;
     case FLOAT_DEF: 
 	{
-	    FloatDef ff;
-	    GET_DOUBLE(term, ff);
-	    hash = hash*FUNNY_NUMBER6 + (ff.fw[0] ^ ff.fw[1]);
+            FloatDef ff;
+            GET_DOUBLE(term, ff);
+            if (ff.fd == 0.0f) {
+                /* ensure positive 0.0 */
+                ff.fd = erts_get_positive_zero_float();
+            }
+            hash = hash*FUNNY_NUMBER6 + (ff.fw[0] ^ ff.fw[1]);
 	}
 	break;
-
     case MAKE_HASH_CDR_PRE_OP:
 	term = (Eterm) WSTACK_POP(stack);
 	if (is_not_list(term)) {
@@ -1699,23 +2180,8 @@ tail_recur:
 	break;
 
     case MAP_DEF:
-	{
-	    map_t *mp = (map_t *)map_val(term);
-	    int size  = map_get_size(mp);
-	    Eterm *ks = map_get_keys(mp);
-	    Eterm *vs = map_get_values(mp);
-
-	    /* Use a prime with size to remedy some of
-	     * the {} and <<>> hash problems */
-	    hash = hash*FUNNY_NUMBER13 + FUNNY_NUMBER14 + size;
-	    if (size == 0)
-		break;
-
-	    /* push values first */
-	    WSTACK_PUSH3(stack, (UWord)vs, (UWord) size, MAKE_HASH_TERM_ARRAY_OP);
-	    WSTACK_PUSH3(stack, (UWord)ks, (UWord) size, MAKE_HASH_TERM_ARRAY_OP);
-	    break;
-	}
+        hash = hash*FUNNY_NUMBER13 + FUNNY_NUMBER14 + make_hash2(term);
+        break;
     case TUPLE_DEF: 
 	{
 	    Eterm* ptr = tuple_val(term);
@@ -1758,101 +2224,157 @@ tail_recur:
 #undef MAKE_HASH_CDR_POST_OP
 }
 
-static int do_send_to_logger(Eterm tag, Eterm gleader, char *buf, int len)
+static Eterm
+do_allocate_logger_message(Eterm gleader, Eterm **hp, ErlOffHeap **ohp,
+			   ErlHeapFragment **bp, Process **p, Uint sz)
 {
-    /* error_logger ! 
-       {notify,{info_msg,gleader,{emulator,"~s~n",[<message as list>]}}} |
-       {notify,{error,gleader,{emulator,"~s~n",[<message as list>]}}} |
-       {notify,{warning_msg,gleader,{emulator,"~s~n",[<message as list>}]}} */
-    Eterm* hp;
-    Uint sz;
     Uint gl_sz;
-    Eterm gl;
-    Eterm list,plist,format,tuple1,tuple2,tuple3;
-    ErlOffHeap *ohp;
-    ErlHeapFragment *bp = NULL;
-#if !defined(ERTS_SMP)
-    Process *p;
-#endif
-
-    ASSERT(is_atom(tag));
-
-    if (len <= 0) {
-	return -1;
-    }
+    gl_sz = IS_CONST(gleader) ? 0 : size_object(gleader);
+    sz = sz + gl_sz;
 
 #ifndef ERTS_SMP
 #ifdef USE_THREADS
-    p = NULL;
     if (erts_get_scheduler_data()) /* Must be scheduler thread */
 #endif
     {
-	p = erts_whereis_process(NULL, 0, am_error_logger, 0, 0);
-	if (p) {
-	    erts_aint32_t state = erts_smp_atomic32_read_acqb(&p->state);
+	*p = erts_whereis_process(NULL, 0, am_error_logger, 0, 0);
+	if (*p) {
+	    erts_aint32_t state = erts_smp_atomic32_read_acqb(&(*p)->state);
 	    if (state & (ERTS_PSFLG_RUNNING|ERTS_PSFLG_RUNNING_SYS))
-		p = NULL;
+		*p = NULL;
 	}
     }
 
-    if (!p) {
-	/* buf *always* points to a null terminated string */
-	erts_fprintf(stderr, "(no error logger present) %T: \"%s\"\n",
-		     tag, buf);
-	return 0;
+    if (!*p) {
+	return NIL;
     }
-    /* So we have an error logger, lets build the message */
-#endif
-    gl_sz = IS_CONST(gleader) ? 0 : size_object(gleader);
-    sz = len * 2 /* message list */+ 2 /* cons surrounding message list */
-	+ gl_sz + 
-	3 /*outer 2-tuple*/ + 4 /* middle 3-tuple */ + 4 /*inner 3-tuple */ +
-	8 /* "~s~n" */;
 
-#ifndef ERTS_SMP
-    if (sz <= HeapWordsLeft(p)) {
-	ohp = &MSO(p);
-	hp = HEAP_TOP(p);
-	HEAP_TOP(p) += sz;
+    /* So we have an error logger, lets build the message */
+    if (sz <= HeapWordsLeft(*p)) {
+	*ohp = &MSO(*p);
+	*hp = HEAP_TOP(*p);
+	HEAP_TOP(*p) += sz;
     } else {
 #endif
-	bp = new_message_buffer(sz);
-	ohp = &bp->off_heap;
-	hp = bp->mem;
+	*bp = new_message_buffer(sz);
+	*ohp = &(*bp)->off_heap;
+	*hp = (*bp)->mem;
 #ifndef ERTS_SMP
     }
 #endif
-    gl = (is_nil(gleader)
+
+    return (is_nil(gleader)
 	  ? am_noproc
 	  : (IS_CONST(gleader)
 	     ? gleader
-	     : copy_struct(gleader,gl_sz,&hp,ohp)));
-    list = buf_to_intlist(&hp, buf, len, NIL);
-    plist = CONS(hp,list,NIL);
-    hp += 2;
-    format = buf_to_intlist(&hp, "~s~n", 4, NIL);
-    tuple1 = TUPLE3(hp, am_emulator, format, plist);
-    hp += 4;
-    tuple2 = TUPLE3(hp, tag, gl, tuple1);
-    hp += 4;
-    tuple3 = TUPLE2(hp, am_notify, tuple2);
+	     : copy_struct(gleader,gl_sz,hp,*ohp)));
+}
+
+static void do_send_logger_message(Eterm *hp, ErlOffHeap *ohp, ErlHeapFragment *bp,
+				   Process *p, Eterm message)
+{
 #ifdef HARDDEBUG
-    erts_fprintf(stderr, "%T\n", tuple3);
+    erts_fprintf(stderr, "%T\n", message);
 #endif
 #ifdef ERTS_SMP
     {
 	Eterm from = erts_get_current_pid();
 	if (is_not_internal_pid(from))
 	    from = NIL;
-	erts_queue_error_logger_message(from, tuple3, bp);
+	erts_queue_error_logger_message(from, message, bp);
     }
 #else
-    erts_queue_message(p, NULL /* only used for smp build */, bp, tuple3, NIL
-#ifdef USE_VM_PROBES
-		       , NIL
-#endif
-		       );
+    erts_queue_message(p, NULL /* only used for smp build */, bp, message, NIL);
 #endif
+}
+
+/* error_logger !
+   {notify,{info_msg,gleader,{emulator,format,[args]}}} |
+   {notify,{error,gleader,{emulator,format,[args]}}} |
+   {notify,{warning_msg,gleader,{emulator,format,[args}]}} */
+static int do_send_to_logger(Eterm tag, Eterm gleader, char *buf, int len)
+{
+    Uint sz;
+    Eterm gl;
+    Eterm list,args,format,tuple1,tuple2,tuple3;
+
+    Eterm *hp = NULL;
+    ErlOffHeap *ohp = NULL;
+    ErlHeapFragment *bp = NULL;
+    Process *p = NULL;
+
+    ASSERT(is_atom(tag));
+
+    if (len <= 0) {
+	return -1;
+    }
+
+    sz = len * 2 /* message list */ + 2 /* cons surrounding message list */
+	+ 3 /*outer 2-tuple*/ + 4 /* middle 3-tuple */ + 4 /*inner 3-tuple */
+	+ 8 /* "~s~n" */;
+
+    /* gleader size is accounted and allocated next */
+    gl = do_allocate_logger_message(gleader, &hp, &ohp, &bp, &p, sz);
+
+    if(is_nil(gl)) {
+       /* buf *always* points to a null terminated string */
+       erts_fprintf(stderr, "(no error logger present) %T: \"%s\"\n",
+                    tag, buf);
+       return 0;
+    }
+
+    list = buf_to_intlist(&hp, buf, len, NIL);
+    args = CONS(hp,list,NIL);
+    hp += 2;
+    format = buf_to_intlist(&hp, "~s~n", 4, NIL);
+    tuple1 = TUPLE3(hp, am_emulator, format, args);
+    hp += 4;
+    tuple2 = TUPLE3(hp, tag, gl, tuple1);
+    hp += 4;
+    tuple3 = TUPLE2(hp, am_notify, tuple2);
+
+    do_send_logger_message(hp, ohp, bp, p, tuple3);
+    return 0;
+}
+
+static int do_send_term_to_logger(Eterm tag, Eterm gleader,
+				  char *buf, int len, Eterm args)
+{
+    Uint sz;
+    Eterm gl;
+    Uint args_sz;
+    Eterm format,tuple1,tuple2,tuple3;
+
+    Eterm *hp = NULL;
+    ErlOffHeap *ohp = NULL;
+    ErlHeapFragment *bp = NULL;
+    Process *p = NULL;
+
+    ASSERT(is_atom(tag));
+
+    args_sz = size_object(args);
+    sz = len * 2 /* format */ + args_sz
+	+ 3 /*outer 2-tuple*/ + 4 /* middle 3-tuple */ + 4 /*inner 3-tuple */;
+
+    /* gleader size is accounted and allocated next */
+    gl = do_allocate_logger_message(gleader, &hp, &ohp, &bp, &p, sz);
+
+    if(is_nil(gl)) {
+       /* buf *always* points to a null terminated string */
+       erts_fprintf(stderr, "(no error logger present) %T: \"%s\" %T\n",
+                    tag, buf, args);
+       return 0;
+    }
+
+    format = buf_to_intlist(&hp, buf, len, NIL);
+    args = copy_struct(args, args_sz, &hp, ohp);
+    tuple1 = TUPLE3(hp, am_emulator, format, args);
+    hp += 4;
+    tuple2 = TUPLE3(hp, tag, gl, tuple1);
+    hp += 4;
+    tuple3 = TUPLE2(hp, am_notify, tuple2);
+
+    do_send_logger_message(hp, ohp, bp, p, tuple3);
     return 0;
 }
 
@@ -1880,6 +2402,12 @@ send_error_to_logger(Eterm gleader, char *buf, int len)
     return do_send_to_logger(am_error, gleader, buf, len);
 }
 
+static ERTS_INLINE int
+send_error_term_to_logger(Eterm gleader, char *buf, int len, Eterm args)
+{
+    return do_send_term_to_logger(am_error, gleader, buf, len, args);
+}
+
 #define LOGGER_DSBUF_INC_SZ 256
 
 static erts_dsprintf_buf_t *
@@ -1955,6 +2483,15 @@ erts_send_error_to_logger(Eterm gleader, erts_dsprintf_buf_t *dsbufp)
 }
 
 int
+erts_send_error_term_to_logger(Eterm gleader, erts_dsprintf_buf_t *dsbufp, Eterm args)
+{
+    int res;
+    res = send_error_term_to_logger(gleader, dsbufp->str, dsbufp->str_len, args);
+    destroy_logger_dsbuf(dsbufp);
+    return res;
+}
+
+int
 erts_send_info_to_logger_str(Eterm gleader, char *str)
 {
     return send_info_to_logger(gleader, str, sys_strlen(str));
@@ -2120,22 +2657,6 @@ tailrecur_ne:
 		    ++bb;
 		    goto term_array;
 		}
-	    case MAP_SUBTAG:
-		{
-		    aa = map_val_rel(a, a_base);
-		    if (!is_boxed(b) || *boxed_val_rel(b,b_base) != *aa)
-			goto not_equal;
-		    bb = map_val_rel(b,b_base);
-		    sz = map_get_size((map_t*)aa);
-
-		    if (sz != map_get_size((map_t*)bb)) goto not_equal;
-		    if (sz == 0) goto pop_next;
-
-		    aa += 2;
-		    bb += 2;
-		    sz += 1; /* increment for tuple-keys */
-		    goto term_array;
-		}
 	    case REFC_BINARY_SUBTAG:
 	    case HEAP_BINARY_SUBTAG:
 	    case SUB_BINARY_SUBTAG:
@@ -2327,6 +2848,46 @@ tailrecur_ne:
 		    }
 		    break; /* not equal */
 		}
+	    case MAP_SUBTAG:
+                if (is_flatmap_rel(a, a_base)) {
+		    aa = flatmap_val_rel(a, a_base);
+		    if (!is_boxed(b) || *boxed_val_rel(b,b_base) != *aa)
+			goto not_equal;
+		    bb = flatmap_val_rel(b,b_base);
+		    sz = flatmap_get_size((flatmap_t*)aa);
+
+		    if (sz != flatmap_get_size((flatmap_t*)bb)) goto not_equal;
+		    if (sz == 0) goto pop_next;
+
+		    aa += 2;
+		    bb += 2;
+		    sz += 1; /* increment for tuple-keys */
+		    goto term_array;
+
+                } else {
+		    if (!is_boxed(b) || *boxed_val_rel(b,b_base) != hdr)
+			goto not_equal;
+
+		    aa = hashmap_val_rel(a, a_base) + 1;
+		    bb = hashmap_val_rel(b, b_base) + 1;
+		    switch (hdr & _HEADER_MAP_SUBTAG_MASK) {
+		    case HAMT_SUBTAG_HEAD_ARRAY:
+			aa++; bb++;
+			sz = 16;
+			break;
+		    case HAMT_SUBTAG_HEAD_BITMAP:
+			aa++; bb++;
+		    case HAMT_SUBTAG_NODE_BITMAP:
+			sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+			ASSERT(sz > 0 && sz < 17);
+			break;
+		    default:
+			erl_exit(1, "Unknown hashmap subsubtag\n");
+		    }
+		    goto term_array;
+		}
+	    default:
+		ASSERT(!"Unknown boxed subtab in EQ");
 	    }
 	    break;
 	}
@@ -2436,21 +2997,68 @@ static int cmp_atoms(Eterm a, Eterm b)
  */
 Sint cmp(Eterm a, Eterm b)
 {
-    return erts_cmp(a, b, 0);
+    return erts_cmp(a, b, 0, 0);
 }
 #endif
 
+#if HALFWORD_HEAP
+static Sint erts_cmp_compound_rel_opt(Eterm a, Eterm* a_base,
+                                      Eterm b, Eterm* b_base,
+                                      int exact, int eq_only);
+#else
+static Sint erts_cmp_compound(Eterm a, Eterm b, int exact, int eq_only);
+#endif
+
+#if HALFWORD_HEAP
+Sint erts_cmp_rel_opt(Eterm a, Eterm* a_base,
+                      Eterm b, Eterm* b_base,
+                      int exact, int eq_only)
+#else
+Sint erts_cmp(Eterm a, Eterm b, int exact, int eq_only)
+#endif
+{
+    if (is_atom(a) && is_atom(b)) {
+        return cmp_atoms(a, b);
+    } else if (is_both_small(a, b)) {
+        return (signed_val(a) - signed_val(b));
+    } else if (is_float_rel(a, a_base) && is_float_rel(b, b_base)) {
+        FloatDef af, bf;
+        GET_DOUBLE_REL(a, af, a_base);
+        GET_DOUBLE_REL(b, bf, b_base);
+        return float_comp(af.fd, bf.fd);
+    }
+#if HALFWORD_HEAP
+    return erts_cmp_compound_rel_opt(a,a_base,b,b_base,exact,eq_only);
+#else
+    return erts_cmp_compound(a,b,exact,eq_only);
+#endif
+}
+
+
 /* erts_cmp(Eterm a, Eterm b, int exact)
  * exact = 1 -> term-based compare
  * exact = 0 -> arith-based compare
  */
 #if HALFWORD_HEAP
-Sint erts_cmp_rel_opt(Eterm a, Eterm* a_base, Eterm b, Eterm* b_base, int exact)
+static Sint erts_cmp_compound_rel_opt(Eterm a, Eterm* a_base,
+                                      Eterm b, Eterm* b_base,
+                                      int exact, int eq_only)
 #else
-Sint erts_cmp(Eterm a, Eterm b, int exact)
+static Sint erts_cmp_compound(Eterm a, Eterm b, int exact, int eq_only)
 #endif
 {
-    DECLARE_WSTACK(stack);
+#define PSTACK_TYPE struct erts_cmp_hashmap_state
+    struct erts_cmp_hashmap_state {
+        Sint wstack_rollback;
+        int was_exact;
+        Eterm *ap;
+        Eterm *bp;
+        Eterm min_key;
+        Sint cmp_res;   /* result so far -1,0,+1 */
+    };
+    PSTACK_DECLARE(hmap_stack, 1);
+    WSTACK_DECLARE(stack);
+    WSTACK_DECLARE(b_stack); /* only used by hashmaps */
     Eterm* aa;
     Eterm* bb;
     int i;
@@ -2466,6 +3074,26 @@ Sint erts_cmp(Eterm a, Eterm b, int exact)
     Uint32 *anum;
     Uint32 *bnum;
 
+/* The WSTACK contains naked Eterms and Operations marked with header-tags */
+#define OP_BITS 4
+#define OP_MASK 0xF
+#define TERM_ARRAY_OP                 0
+#define SWITCH_EXACT_OFF_OP           1
+#define HASHMAP_PHASE1_ARE_KEYS_EQUAL 2
+#define HASHMAP_PHASE1_IS_MIN_KEY     3
+#define HASHMAP_PHASE1_CMP_VALUES     4
+#define HASHMAP_PHASE2_ARE_KEYS_EQUAL 5
+#define HASHMAP_PHASE2_IS_MIN_KEY_A   6
+#define HASHMAP_PHASE2_IS_MIN_KEY_B   7
+
+
+#define OP_WORD(OP)  (((OP)  << _TAG_PRIMARY_SIZE) | TAG_PRIMARY_HEADER)
+#define TERM_ARRAY_OP_WORD(SZ) OP_WORD(((SZ) << OP_BITS) | TERM_ARRAY_OP)
+
+#define GET_OP(WORD) (ASSERT(is_header(WORD)), ((WORD) >> _TAG_PRIMARY_SIZE) & OP_MASK)
+#define GET_OP_ARG(WORD) (ASSERT(is_header(WORD)), ((WORD) >> (OP_BITS + _TAG_PRIMARY_SIZE)))
+
+
 #define RETURN_NEQ(cmp) { j=(cmp); ASSERT(j != 0); goto not_equal; }
 #define ON_CMP_GOTO(cmp) if ((j=(cmp)) == 0) goto pop_next; else goto not_equal
 
@@ -2481,6 +3109,8 @@ Sint erts_cmp(Eterm a, Eterm b, int exact)
     } while (0)
 
 
+bodyrecur:
+    j = 0;
 tailrecur:
     if (is_same(a,a_base,b,b_base)) {	/* Equal values or pointers. */
 	goto pop_next;
@@ -2607,25 +3237,96 @@ tailrecur_ne:
 		++aa;
 		++bb;
 		goto term_array;
-	    case (_TAG_HEADER_MAP >> _TAG_PRIMARY_SIZE) :
-		if (!is_map_rel(b,b_base)) {
-		    a_tag = MAP_DEF;
-		    goto mixed_types;
-		}
-		aa = (Eterm *)map_val_rel(a,a_base);
-		bb = (Eterm *)map_val_rel(b,b_base);
-
-		i = map_get_size((map_t*)aa);
-		if (i != map_get_size((map_t*)bb)) {
-		    RETURN_NEQ((int)(i - map_get_size((map_t*)bb)));
-		}
-		if (i == 0) {
-		    goto pop_next;
+            case (_TAG_HEADER_MAP >> _TAG_PRIMARY_SIZE) :
+		{
+                    struct erts_cmp_hashmap_state* sp;
+                    if (is_flatmap_header(ahdr)) {
+                        if (!is_flatmap_rel(b,b_base)) {
+                            if (is_hashmap_rel(b,b_base)) {
+                                aa = (Eterm *)flatmap_val_rel(a,a_base);
+                                i = flatmap_get_size((flatmap_t*)aa) - hashmap_size_rel(b,b_base);
+                                ASSERT(i != 0);
+                                RETURN_NEQ(i);
+                            }
+                            a_tag = MAP_DEF;
+                            goto mixed_types;
+                        }
+                        aa = (Eterm *)flatmap_val_rel(a,a_base);
+                        bb = (Eterm *)flatmap_val_rel(b,b_base);
+
+                        i = flatmap_get_size((flatmap_t*)aa);
+                        if (i != flatmap_get_size((flatmap_t*)bb)) {
+                            RETURN_NEQ((int)(i - flatmap_get_size((flatmap_t*)bb)));
+                        }
+                        if (i == 0) {
+                            goto pop_next;
+                        }
+                        aa += 2;
+                        bb += 2;
+                        if (exact) {
+                            i  += 1; /* increment for tuple-keys */
+                            goto term_array;
+                        }
+                        else {
+                            /* Value array */
+                            WSTACK_PUSH3(stack,(UWord)(bb+1),(UWord)(aa+1),TERM_ARRAY_OP_WORD(i));
+                            /* Switch back from 'exact' key compare */
+                            WSTACK_PUSH(stack,OP_WORD(SWITCH_EXACT_OFF_OP));
+                            /* Now do 'exact' compare of key tuples */
+                            a = *aa;
+                            b = *bb;
+                            exact = 1;
+                            goto bodyrecur;
+                        }
+                    }
+		    if (!is_hashmap_rel(b,b_base)) {
+                        if (is_flatmap_rel(b,b_base)) {
+                            bb = (Eterm *)flatmap_val_rel(b,b_base);
+                            i = hashmap_size_rel(a,a_base) - flatmap_get_size((flatmap_t*)bb);
+                            ASSERT(i != 0);
+                            RETURN_NEQ(i);
+                        }
+			a_tag = MAP_DEF;
+			goto mixed_types;
+		    }
+		    i = hashmap_size_rel(a,a_base) - hashmap_size_rel(b,b_base);
+		    if (i) {
+			RETURN_NEQ(i);
+		    }
+                    if (hashmap_size_rel(a,a_base) == 0) {
+                        goto pop_next;
+                    }
+
+                /* Hashmap compare strategy:
+                   Phase 1. While keys are identical
+                     Do synchronous stepping through leafs of both trees in hash
+                     order. Maintain value compare result of minimal key.
+
+                   Phase 2. If key diff was found in phase 1
+                     Ignore values from now on.
+                     Continue iterate trees by always advancing the one
+                     lagging behind hash-wise. Identical keys are skipped.
+                     A minimal key can only be candidate as tie-breaker if we
+                     have passed that hash value in the other tree (which means
+                     the key did not exist in the other tree).
+                */
+
+                    sp = PSTACK_PUSH(hmap_stack);
+                    hashmap_iterator_init(&stack, a, 0);
+                    hashmap_iterator_init(&b_stack, b, 0);
+                    sp->ap = hashmap_iterator_next(&stack);
+                    sp->bp = hashmap_iterator_next(&b_stack);
+                    sp->cmp_res = 0;
+                    ASSERT(sp->ap && sp->bp);
+
+                    a = CAR(sp->ap);
+                    b = CAR(sp->bp);
+                    sp->was_exact = exact;
+                    exact = 1;
+                    WSTACK_PUSH(stack, OP_WORD(HASHMAP_PHASE1_ARE_KEYS_EQUAL));
+                    sp->wstack_rollback = WSTACK_COUNT(stack);
+                    goto bodyrecur;
 		}
-		aa += 2;
-		bb += 2;
-		i  += 1; /* increment for tuple-keys */
-		goto term_array;
 	    case (_TAG_HEADER_FLOAT >> _TAG_PRIMARY_SIZE):
 		if (!is_float_rel(b,b_base)) {
 		    a_tag = FLOAT_DEF;
@@ -2985,8 +3686,7 @@ term_array: /* arrays in 'aa' and 'bb', length in 'i' */
 		    goto not_equal;
 		}
 	    } else {
-		/* (ab)Use TAG_PRIMARY_HEADER to recognize a term_array */
-		WSTACK_PUSH3(stack, i, (UWord)bb, (UWord)aa | TAG_PRIMARY_HEADER);
+		WSTACK_PUSH3(stack, (UWord)bb, (UWord)aa, TERM_ARRAY_OP_WORD(i));
 		goto tailrecur_ne;
 	    }
 	}
@@ -2998,22 +3698,179 @@ term_array: /* arrays in 'aa' and 'bb', length in 'i' */
 pop_next:
     if (!WSTACK_ISEMPTY(stack)) {
 	UWord something = WSTACK_POP(stack);
-	if (primary_tag((Eterm) something) == TAG_PRIMARY_HEADER) { /* a term_array */
-	    aa = (Eterm*) something;
-	    bb = (Eterm*) WSTACK_POP(stack);
-	    i = WSTACK_POP(stack);
-	    goto term_array;
+        struct erts_cmp_hashmap_state* sp;
+	if (primary_tag((Eterm) something) == TAG_PRIMARY_HEADER) { /* an operation */
+	    switch (GET_OP(something)) {
+	    case TERM_ARRAY_OP:
+		i = GET_OP_ARG(something);
+		aa = (Eterm*)WSTACK_POP(stack);
+		bb = (Eterm*) WSTACK_POP(stack);
+		goto term_array;
+
+	    case SWITCH_EXACT_OFF_OP:
+		/* Done with exact compare of map keys, switch back */
+		ASSERT(exact);
+		exact = 0;
+		goto pop_next;
+
+            case HASHMAP_PHASE1_ARE_KEYS_EQUAL: {
+                sp = PSTACK_TOP(hmap_stack);
+                if (j) {
+                    /* Key diff found, enter phase 2 */
+                    if (hashmap_key_hash_cmp(sp->ap, sp->bp) < 0) {
+                        sp->min_key = CAR(sp->ap);
+                        sp->cmp_res = -1;
+                        sp->ap = hashmap_iterator_next(&stack);
+                    }
+                    else {
+                        sp->min_key = CAR(sp->bp);
+                        sp->cmp_res = 1;
+                        sp->bp = hashmap_iterator_next(&b_stack);
+                    }
+                    exact = 1; /* only exact key compares in phase 2 */
+                    goto case_HASHMAP_PHASE2_LOOP;
+                }
+
+                /* No key diff found so far, compare values if min key */
+
+                if (sp->cmp_res) {
+                    a = CAR(sp->ap);
+                    b = sp->min_key;
+                    exact = 1;
+                    WSTACK_PUSH(stack, OP_WORD(HASHMAP_PHASE1_IS_MIN_KEY));
+                    sp->wstack_rollback = WSTACK_COUNT(stack);
+                    goto bodyrecur;
+                }
+                /* no min key-value found yet */
+                a = CDR(sp->ap);
+                b = CDR(sp->bp);
+                exact = sp->was_exact;
+                WSTACK_PUSH(stack, OP_WORD(HASHMAP_PHASE1_CMP_VALUES));
+                sp->wstack_rollback = WSTACK_COUNT(stack);
+                goto bodyrecur;
+            }
+            case HASHMAP_PHASE1_IS_MIN_KEY:
+                sp = PSTACK_TOP(hmap_stack);
+                if (j < 0) {
+                    a = CDR(sp->ap);
+                    b = CDR(sp->bp);
+                    exact = sp->was_exact;
+                    WSTACK_PUSH(stack, OP_WORD(HASHMAP_PHASE1_CMP_VALUES));
+                    sp->wstack_rollback = WSTACK_COUNT(stack);
+                    goto bodyrecur;
+                }
+                goto case_HASHMAP_PHASE1_LOOP;
+
+            case HASHMAP_PHASE1_CMP_VALUES:
+                sp = PSTACK_TOP(hmap_stack);
+                if (j) {
+                    sp->cmp_res = j;
+                    sp->min_key = CAR(sp->ap);
+                }
+            case_HASHMAP_PHASE1_LOOP:
+                sp->ap = hashmap_iterator_next(&stack);
+                sp->bp = hashmap_iterator_next(&b_stack);
+                if (!sp->ap) {
+                    /* end of maps with identical keys */
+                    ASSERT(!sp->bp);
+                    j = sp->cmp_res;
+                    exact = sp->was_exact;
+                    (void) PSTACK_POP(hmap_stack);
+                    ON_CMP_GOTO(j);
+                }
+                a = CAR(sp->ap);
+                b = CAR(sp->bp);
+                exact = 1;
+                WSTACK_PUSH(stack, OP_WORD(HASHMAP_PHASE1_ARE_KEYS_EQUAL));
+                sp->wstack_rollback = WSTACK_COUNT(stack);
+                goto bodyrecur;
+
+            case_HASHMAP_PHASE2_LOOP:
+                if (sp->ap && sp->bp) {
+                    a = CAR(sp->ap);
+                    b = CAR(sp->bp);
+                    ASSERT(exact);
+                    WSTACK_PUSH(stack, OP_WORD(HASHMAP_PHASE2_ARE_KEYS_EQUAL));
+                    sp->wstack_rollback = WSTACK_COUNT(stack);
+                    goto bodyrecur;
+                }
+                goto case_HASHMAP_PHASE2_NEXT_STEP;
+
+            case HASHMAP_PHASE2_ARE_KEYS_EQUAL:
+                sp = PSTACK_TOP(hmap_stack);
+                if (j == 0) {
+                    /* keys are equal, skip them */
+                    sp->ap = hashmap_iterator_next(&stack);
+                    sp->bp = hashmap_iterator_next(&b_stack);
+                    goto case_HASHMAP_PHASE2_LOOP;
+                }
+                /* fall through */
+            case_HASHMAP_PHASE2_NEXT_STEP:
+                if (sp->ap || sp->bp) {
+                    if (hashmap_key_hash_cmp(sp->ap, sp->bp) < 0) {
+                        ASSERT(sp->ap);
+                        a = CAR(sp->ap);
+                        b = sp->min_key;
+                        ASSERT(exact);
+                        WSTACK_PUSH(stack, OP_WORD(HASHMAP_PHASE2_IS_MIN_KEY_A));
+                    }
+                    else { /* hash_cmp > 0 */
+                        ASSERT(sp->bp);
+                        a = CAR(sp->bp);
+                        b = sp->min_key;
+                        ASSERT(exact);
+                        WSTACK_PUSH(stack, OP_WORD(HASHMAP_PHASE2_IS_MIN_KEY_B));
+                    }
+                    sp->wstack_rollback = WSTACK_COUNT(stack);
+                    goto bodyrecur;
+                }
+                /* End of both maps */
+                j = sp->cmp_res;
+                exact = sp->was_exact;
+                (void) PSTACK_POP(hmap_stack);
+                ON_CMP_GOTO(j);
+
+            case HASHMAP_PHASE2_IS_MIN_KEY_A:
+                sp = PSTACK_TOP(hmap_stack);
+                if (j < 0) {
+                    sp->min_key = CAR(sp->ap);
+                    sp->cmp_res = -1;
+                }
+                sp->ap = hashmap_iterator_next(&stack);
+                goto case_HASHMAP_PHASE2_LOOP;
+
+            case HASHMAP_PHASE2_IS_MIN_KEY_B:
+                sp = PSTACK_TOP(hmap_stack);
+                if (j < 0) {
+                    sp->min_key = CAR(sp->bp);
+                    sp->cmp_res = 1;
+                }
+                sp->bp = hashmap_iterator_next(&b_stack);
+                goto case_HASHMAP_PHASE2_LOOP;
+
+            default:
+                ASSERT(!"Invalid cmp op");
+            } /* switch */
 	}
 	a = (Eterm) something;
 	b = (Eterm) WSTACK_POP(stack);
 	goto tailrecur;
     }
 
-    DESTROY_WSTACK(stack);
+    ASSERT(PSTACK_IS_EMPTY(hmap_stack));
+    PSTACK_DESTROY(hmap_stack);
+    WSTACK_DESTROY(stack);
+    WSTACK_DESTROY(b_stack);
     return 0;
 
 not_equal:
-    DESTROY_WSTACK(stack);
+    if (!PSTACK_IS_EMPTY(hmap_stack) && !eq_only) {
+        WSTACK_ROLLBACK(stack, PSTACK_TOP(hmap_stack)->wstack_rollback);
+        goto pop_next;
+    }
+    PSTACK_DESTROY(hmap_stack);
+    WSTACK_DESTROY(stack);
+    WSTACK_DESTROY(b_stack);
     return j;
 
 #undef CMP_NODES
@@ -3663,145 +4520,6 @@ is_string(Eterm list)
     return 0;
 }
 
-#ifdef ERTS_SMP
-
-/*
- * Process and Port timers in smp case
- */
-
-ERTS_SCHED_PREF_PRE_ALLOC_IMPL(ptimer_pre, ErtsSmpPTimer, 1000)
-
-#define ERTS_PTMR_FLGS_ALLCD_SIZE \
-  2
-#define ERTS_PTMR_FLGS_ALLCD_MASK \
-  ((((Uint32) 1) << ERTS_PTMR_FLGS_ALLCD_SIZE) - 1)
-
-#define ERTS_PTMR_FLGS_PREALLCD	((Uint32) 1)
-#define ERTS_PTMR_FLGS_SLALLCD	((Uint32) 2)
-#define ERTS_PTMR_FLGS_LLALLCD	((Uint32) 3)
-#define ERTS_PTMR_FLG_CANCELLED	(((Uint32) 1) << (ERTS_PTMR_FLGS_ALLCD_SIZE+0))
-
-static void
-init_ptimers(void)
-{
-    init_ptimer_pre_alloc();
-}
-
-static ERTS_INLINE void
-free_ptimer(ErtsSmpPTimer *ptimer)
-{
-    switch (ptimer->timer.flags & ERTS_PTMR_FLGS_ALLCD_MASK) {
-    case ERTS_PTMR_FLGS_PREALLCD:
-	(void) ptimer_pre_free(ptimer);
-	break;
-    case ERTS_PTMR_FLGS_SLALLCD:
-	erts_free(ERTS_ALC_T_SL_PTIMER, (void *) ptimer);
-	break;
-    case ERTS_PTMR_FLGS_LLALLCD:
-	erts_free(ERTS_ALC_T_LL_PTIMER, (void *) ptimer);
-	break;
-    default:
-	erl_exit(ERTS_ABORT_EXIT,
-		 "Internal error: Bad ptimer alloc type\n");
-	break;
-    }
-}
-
-/* Callback for process timeout cancelled */
-static void
-ptimer_cancelled(ErtsSmpPTimer *ptimer)
-{
-    free_ptimer(ptimer);
-}
-
-/* Callback for process timeout */
-static void
-ptimer_timeout(ErtsSmpPTimer *ptimer)
-{
-    if (is_internal_pid(ptimer->timer.id)) {
-	Process *p;
-	p = erts_pid2proc_opt(NULL,
-			      0,
-			      ptimer->timer.id,
-			      ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS,
-			      ERTS_P2P_FLG_ALLOW_OTHER_X);
-	if (p) {
-	    if (!ERTS_PROC_IS_EXITING(p)
-		&& !(ptimer->timer.flags & ERTS_PTMR_FLG_CANCELLED)) {
-		ASSERT(*ptimer->timer.timer_ref == ptimer);
-		*ptimer->timer.timer_ref = NULL;
-		(*ptimer->timer.timeout_func)(p);
-	    }
-	    erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS);
-	}
-    }
-    else {
-	Port *p;
-	ASSERT(is_internal_port(ptimer->timer.id));
-	p = erts_id2port_sflgs(ptimer->timer.id,
-			       NULL,
-			       0,
-			       ERTS_PORT_SFLGS_DEAD);
-	if (p) {
-	    if (!(ptimer->timer.flags & ERTS_PTMR_FLG_CANCELLED)) {
-		ASSERT(*ptimer->timer.timer_ref == ptimer);
-		*ptimer->timer.timer_ref = NULL;
-		(*ptimer->timer.timeout_func)(p);
-	    }
-	    erts_port_release(p);
-	}
-    }
-    free_ptimer(ptimer);
-}
-
-void
-erts_create_smp_ptimer(ErtsSmpPTimer **timer_ref,
-		       Eterm id,
-		       ErlTimeoutProc timeout_func,
-		       Uint timeout)
-{
-    ErtsSmpPTimer *res = ptimer_pre_alloc();
-    if (res)
-	res->timer.flags = ERTS_PTMR_FLGS_PREALLCD;
-    else {
-	if (timeout < ERTS_ALC_MIN_LONG_LIVED_TIME) {
-	    res = erts_alloc(ERTS_ALC_T_SL_PTIMER, sizeof(ErtsSmpPTimer));
-	    res->timer.flags = ERTS_PTMR_FLGS_SLALLCD;
-	}
-	else {
-	    res = erts_alloc(ERTS_ALC_T_LL_PTIMER, sizeof(ErtsSmpPTimer));
-	    res->timer.flags = ERTS_PTMR_FLGS_LLALLCD;
-	}
-    }
-    res->timer.timeout_func = timeout_func;
-    res->timer.timer_ref = timer_ref;
-    res->timer.id = id;
-    res->timer.tm.active = 0; /* MUST be initalized */
-
-    ASSERT(!*timer_ref);
-
-    *timer_ref = res;
-
-    erts_set_timer(&res->timer.tm,
-		  (ErlTimeoutProc) ptimer_timeout,
-		  (ErlCancelProc) ptimer_cancelled,
-		  (void*) res,
-		  timeout);
-}
-
-void
-erts_cancel_smp_ptimer(ErtsSmpPTimer *ptimer)
-{
-    if (ptimer) {
-	ASSERT(*ptimer->timer.timer_ref == ptimer);
-	*ptimer->timer.timer_ref = NULL;
-	ptimer->timer.flags |= ERTS_PTMR_FLG_CANCELLED;
-	erts_cancel_timer(&ptimer->timer.tm);
-    }
-}
-
-#endif
-
 static int trim_threshold;
 static int top_pad;
 static int mmap_threshold;
@@ -3811,9 +4529,7 @@ Uint tot_bin_allocated;
 
 void erts_init_utils(void)
 {
-#ifdef ERTS_SMP
-    init_ptimers();
-#endif
+
 }
 
 void erts_init_utils_mem(void) 
@@ -4353,8 +5069,8 @@ erts_smp_ensure_later_interval_acqb(erts_interval_t *icp, Uint64 ic)
  */
 Uint64 erts_timestamp_millis(void)
 {
-#ifdef HAVE_GETHRTIME
-    return (Uint64) (sys_gethrtime() / 1000000);
+#ifdef ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT
+    return ERTS_MONOTONIC_TO_MSEC(erts_os_monotonic_time());
 #else
     Uint64 res;
     SysTimeval tv;
diff --git a/erts/emulator/drivers/common/efile_drv.c b/erts/emulator/drivers/common/efile_drv.c
index 3b8e7acb6e..b2cfe70f94 100644
--- a/erts/emulator/drivers/common/efile_drv.c
+++ b/erts/emulator/drivers/common/efile_drv.c
@@ -1616,12 +1616,12 @@ static void invoke_altname(void *data)
 }
 
 static void invoke_pwritev(void *data) {
-    struct t_data    *d = (struct t_data *) data;
+    struct t_data* const d = (struct t_data *) data;
+    struct t_pwritev * const c = &d->c.pwritev;
     SysIOVec         *iov0;
     SysIOVec         *iov;
     int               iovlen;
     int               iovcnt;
-    struct t_pwritev *c = &d->c.pwritev;
     size_t            p;
     int               segment;
     size_t            size, write_size, written;
@@ -1695,9 +1695,9 @@ static void invoke_pwritev(void *data) {
 	    d->result_ok = 0;
 	    d->again = 0;
 	deq_error:
-	    MUTEX_LOCK(d->c.writev.q_mtx);
-	    driver_deq(d->c.pwritev.port, c->size);
-	    MUTEX_UNLOCK(d->c.writev.q_mtx);
+	    MUTEX_LOCK(c->q_mtx);
+	    driver_deq(c->port, c->size);
+	    MUTEX_UNLOCK(c->q_mtx);
 
 	    goto done;
 	} else {
@@ -1708,9 +1708,9 @@ static void invoke_pwritev(void *data) {
       ASSERT(written >= FILE_SEGMENT_WRITE);
     }
       
-    MUTEX_LOCK(d->c.writev.q_mtx);
-    driver_deq(d->c.pwritev.port, written);
-    MUTEX_UNLOCK(d->c.writev.q_mtx);
+    MUTEX_LOCK(c->q_mtx);
+    driver_deq(c->port, written);
+    MUTEX_UNLOCK(c->q_mtx);
  done:
     EF_FREE(iov); /* Free our copy of the vector, nothing to restore */
     
@@ -1938,6 +1938,8 @@ static void invoke_sendfile(void *data)
 	d->result_ok = 1;
 	if (d->c.sendfile.nbytes != 0)
 	  d->c.sendfile.nbytes -= nbytes;
+      } else if (nbytes == 0 && d->c.sendfile.nbytes == 0) {
+	d->result_ok = 1;
       } else
 	d->result_ok = 0;
     } else {
diff --git a/erts/emulator/drivers/common/inet_drv.c b/erts/emulator/drivers/common/inet_drv.c
index 3c6922eb8e..e001f31932 100644
--- a/erts/emulator/drivers/common/inet_drv.c
+++ b/erts/emulator/drivers/common/inet_drv.c
@@ -293,6 +293,10 @@ static BOOL (WINAPI *fpSetHandleInformation)(HANDLE,DWORD,DWORD);
 static unsigned long zero_value = 0;
 static unsigned long one_value = 1;
 
+#define TCP_SHUT_WR    SD_SEND
+#define TCP_SHUT_RD    SD_RECEIVE
+#define TCP_SHUT_RDWR  SD_BOTH
+
 #elif defined (__OSE__)
 
 /*
@@ -421,6 +425,10 @@ typedef unsigned long  u_long;
         inet_driver_select((d), (flags), (onoff)); \
    } while(0)
 
+#define TCP_SHUT_WR    SHUT_WR
+#define TCP_SHUT_RD    SHUT_RD
+#define TCP_SHUT_RDWR  SHUT_RDWR
+
 #else /* !__OSE__ && !__WIN32__ */
 
 #include <sys/time.h>
@@ -691,6 +699,9 @@ static int my_strncasecmp(const char *s1, const char *s2, size_t n)
         inet_driver_select((d)->port, (ErlDrvEvent)(long)(d)->event, (flags), (onoff)); \
    } while(0)
 
+#define TCP_SHUT_WR    SHUT_WR
+#define TCP_SHUT_RD    SHUT_RD
+#define TCP_SHUT_RDWR  SHUT_RDWR
 
 #endif /* !__WIN32__ && !__OSE__ */
 
@@ -820,6 +831,10 @@ static int my_strncasecmp(const char *s1, const char *s2, size_t n)
 #define TCP_ADDF_CLOSE_SENT    2 /* Close sent (active mode only) */
 #define TCP_ADDF_DELAYED_CLOSE_RECV 4 /* If receive fails, report {error,closed} (passive mode) */
 #define TCP_ADDF_DELAYED_CLOSE_SEND 8 /* If send fails, report {error,closed} (passive mode) */
+#define TCP_ADDF_PENDING_SHUT_WR   16 /* Call shutdown(sock, SHUT_WR) when queue empties */
+#define TCP_ADDF_PENDING_SHUT_RDWR 32 /* Call shutdown(sock, SHUT_RDWR) when queue empties */
+#define TCP_ADDF_PENDING_SHUTDOWN \
+		(TCP_ADDF_PENDING_SHUT_WR | TCP_ADDF_PENDING_SHUT_RDWR)
 
 /* *_REQ_* replies */
 #define INET_REP_ERROR       0
@@ -1407,6 +1422,8 @@ static int tcp_sendv(tcp_descriptor* desc, ErlIOVec* ev);
 static int tcp_recv(tcp_descriptor* desc, int request_len);
 static int tcp_deliver(tcp_descriptor* desc, int len);
 
+static int tcp_shutdown_error(tcp_descriptor* desc, int err);
+
 static int tcp_inet_output(tcp_descriptor* desc, HANDLE event);
 static int tcp_inet_input(tcp_descriptor* desc, HANDLE event);
 
@@ -3957,9 +3974,9 @@ static int inet_init()
     if (0 != erl_drv_tsd_key_create("inet_buffer_stack_key", &buffer_stack_key))
 	goto error;
 
-    ASSERT(sizeof(struct in_addr) == 4);
+    ERTS_CT_ASSERT(sizeof(struct in_addr) == 4);
 #   if defined(HAVE_IN6) && defined(AF_INET6)
-    ASSERT(sizeof(struct in6_addr) == 16);
+    ERTS_CT_ASSERT(sizeof(struct in6_addr) == 16);
 #   endif
 
     INIT_ATOM(ok);
@@ -4005,7 +4022,7 @@ static int inet_init()
 #ifdef HAVE_SCTP
     /* Check the size of SCTP AssocID -- currently both this driver and the
        Erlang part require 32 bit: */
-    ASSERT(sizeof(sctp_assoc_t)==ASSOC_ID_LEN);
+    ERTS_CT_ASSERT(sizeof(sctp_assoc_t)==ASSOC_ID_LEN);
 #   if defined(HAVE_SCTP_BINDX)
     p_sctp_bindx = sctp_bindx;
 #     if defined(HAVE_SCTP_PEELOFF)
@@ -9473,10 +9490,18 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd,
 	    return ctl_error(EINVAL, rbuf, rsize);
 	}
 	how = buf[0];
-	if (sock_shutdown(INETP(desc)->s, how) == 0) {
+	if (how != TCP_SHUT_RD && driver_sizeq(desc->inet.port) > 0) {
+	    if (how == TCP_SHUT_WR) {
+		desc->tcp_add_flags |= TCP_ADDF_PENDING_SHUT_WR;
+	    } else if (how == TCP_SHUT_RDWR) {
+		desc->tcp_add_flags |= TCP_ADDF_PENDING_SHUT_RDWR;
+	    }
 	    return ctl_reply(INET_REP_OK, NULL, 0, rbuf, rsize);
-	} else {
+	}
+	if (IS_SOCKET_ERROR(sock_shutdown(INETP(desc)->s, how))) {
 	    return ctl_error(sock_errno(), rbuf, rsize);
+	} else {
+	    return ctl_reply(INET_REP_OK, NULL, 0, rbuf, rsize);
 	}
     }
     default:
@@ -9613,6 +9638,8 @@ static void tcp_inet_commandv(ErlDrvData e, ErlIOVec* ev)
 	else
 	    inet_reply_error(INETP(desc), ENOTCONN);
     }
+    else if (desc->tcp_add_flags & TCP_ADDF_PENDING_SHUTDOWN)
+	tcp_shutdown_error(desc, EPIPE);
     else if (tcp_sendv(desc, ev) == 0)
 	inet_reply_ok(INETP(desc));
     DEBUGF(("tcp_inet_commandv(%ld) }\r\n", (long)desc->inet.port)); 
@@ -10506,7 +10533,7 @@ static int tcp_inet_input(tcp_descriptor* desc, HANDLE event)
     return ret;
 }
 
-static int tcp_send_error(tcp_descriptor* desc, int err)
+static int tcp_send_or_shutdown_error(tcp_descriptor* desc, int err)
 {
     /*
      * If the port is busy, we must do some clean-up before proceeding.
@@ -10563,6 +10590,16 @@ static int tcp_send_error(tcp_descriptor* desc, int err)
     return -1;
 }
 
+static int tcp_send_error(tcp_descriptor* desc, int err)
+{
+    return tcp_send_or_shutdown_error(desc, err);
+}
+
+static int tcp_shutdown_error(tcp_descriptor* desc, int err)
+{
+    return tcp_send_or_shutdown_error(desc, err);
+}
+
 /*
 ** Send non-blocking vector data
 */
@@ -10763,6 +10800,19 @@ static int tcp_send(tcp_descriptor* desc, char* ptr, ErlDrvSizeT len)
     return 0;
 }
 
+/* shutdown on the socket:
+** Assume caller has confirmed TCP_ADDF_PENDING_SHUTDOWN is set.
+*/
+static void tcp_shutdown_async(tcp_descriptor* desc)
+{
+    int how;
+
+    how = (desc->tcp_add_flags & TCP_ADDF_PENDING_SHUT_WR) ?
+		TCP_SHUT_WR : TCP_SHUT_RDWR;
+    if (IS_SOCKET_ERROR(sock_shutdown(INETP(desc)->s, how)))
+	tcp_shutdown_error(desc, sock_errno());
+}
+
 #ifdef __OSE__
 
 static void tcp_inet_drv_output_ose(ErlDrvData data, ErlDrvEvent event)
@@ -10891,6 +10941,8 @@ static int tcp_inet_output(tcp_descriptor* desc, HANDLE event)
 	    if ((iov = driver_peekq(ix, &vsize)) == NULL) {
 		sock_select(INETP(desc), FD_WRITE, 0);
 		send_empty_out_q_msgs(INETP(desc));
+		if (desc->tcp_add_flags & TCP_ADDF_PENDING_SHUTDOWN)
+		    tcp_shutdown_async(desc);
 		goto done;
 	    }
 	    vsize = vsize > MAX_VSIZE ? MAX_VSIZE : vsize;
diff --git a/erts/emulator/drivers/common/zlib_drv.c b/erts/emulator/drivers/common/zlib_drv.c
index 3143e4511d..f7b2d91d23 100644
--- a/erts/emulator/drivers/common/zlib_drv.c
+++ b/erts/emulator/drivers/common/zlib_drv.c
@@ -62,8 +62,17 @@
 #define CRC32_COMBINE   23
 #define ADLER32_COMBINE 24
 
+#define INFLATE_CHUNK   25
+
+
 #define DEFAULT_BUFSZ   4000
 
+/* This flag is used in the same places, where zlib return codes
+ * (Z_OK, Z_STREAM_END, Z_NEED_DICT) are. So, we need to set it to
+ * relatively large value to avoid possible value clashes in future.
+ * */
+#define INFLATE_HAS_MORE 100
+
 static int zlib_init(void);
 static ErlDrvData zlib_start(ErlDrvPort port, char* buf);
 static void zlib_stop(ErlDrvData e);
@@ -295,6 +304,58 @@ static int zlib_inflate(ZLibData* d, int flush)
     return res;
 }
 
+static int zlib_inflate_chunk(ZLibData* d)
+{
+    int res = Z_OK;
+
+    if ((d->bin == NULL) && (zlib_output_init(d) < 0)) {
+	errno = ENOMEM;
+	return Z_ERRNO;
+    }
+
+    while ((driver_sizeq(d->port) > 0) && (d->s.avail_out > 0) &&
+           (res != Z_STREAM_END)) {
+	int vlen;
+	SysIOVec* iov = driver_peekq(d->port, &vlen);
+	int len;
+
+	d->s.next_in = iov[0].iov_base;
+	d->s.avail_in = iov[0].iov_len;
+	while((d->s.avail_in > 0) && (d->s.avail_out > 0) && (res != Z_STREAM_END)) {
+	    res = inflate(&d->s, Z_NO_FLUSH);
+	    if (res == Z_NEED_DICT) {
+		/* Essential to eat the header bytes that zlib has looked at */
+		len = iov[0].iov_len - d->s.avail_in;
+		driver_deq(d->port, len);
+		return res;
+	    }
+	    if (res == Z_BUF_ERROR) {
+		/* Was possible more output, but actually not */
+		res = Z_OK;
+	    }
+	    else if (res < 0) {
+		return res;
+	    }
+	}
+	len = iov[0].iov_len - d->s.avail_in;
+	driver_deq(d->port, len);
+    }
+
+    /* We are here because all input was consumed or EOS reached or output
+     * buffer is full */
+    if (d->want_crc) {
+       d->crc = crc32(d->crc, (unsigned char*) d->bin->orig_bytes,
+		      d->binsz - d->s.avail_out);
+    }
+    zlib_output(d);
+    if ((res == Z_OK) && (d->s.avail_in > 0))
+       res = INFLATE_HAS_MORE;
+    else if (res == Z_STREAM_END) {
+       d->inflate_eos_seen = 1;
+    }
+    return res;
+}
+
 static int zlib_deflate(ZLibData* d, int flush)
 {
     int res = Z_OK;
@@ -568,6 +629,18 @@ static ErlDrvSSizeT zlib_ctl(ErlDrvData drv_data, unsigned int command, char *bu
 	    return zlib_return(res, rbuf, rlen);
 	}
 
+    case INFLATE_CHUNK:
+	if (d->state != ST_INFLATE) goto badarg;
+	if (len != 0) goto badarg;
+	res = zlib_inflate_chunk(d);
+	if (res == INFLATE_HAS_MORE) {
+	    return zlib_value2(4, 0, rbuf, rlen);
+	} else if (res == Z_NEED_DICT) {
+	    return zlib_value2(3, d->s.adler, rbuf, rlen);
+	} else {
+	    return zlib_return(res, rbuf, rlen);
+	}
+
     case GET_QSIZE:
 	return zlib_value(driver_sizeq(d->port), rbuf, rlen);
 
diff --git a/erts/emulator/drivers/unix/ttsl_drv.c b/erts/emulator/drivers/unix/ttsl_drv.c
index 491e0a090e..a5960716f2 100644
--- a/erts/emulator/drivers/unix/ttsl_drv.c
+++ b/erts/emulator/drivers/unix/ttsl_drv.c
@@ -32,6 +32,10 @@ static ErlDrvData ttysl_start(ErlDrvPort, char*);
 
 #ifdef HAVE_TERMCAP  /* else make an empty driver that can not be opened */
 
+#ifndef WANT_NONBLOCKING
+#define WANT_NONBLOCKING
+#endif
+
 #include "sys.h"
 #include <ctype.h>
 #include <stdlib.h>
@@ -39,6 +43,7 @@ static ErlDrvData ttysl_start(ErlDrvPort, char*);
 #include <string.h>
 #include <signal.h>
 #include <fcntl.h>
+#include <limits.h>
 #include <locale.h>
 #include <unistd.h>
 #include <termios.h>
@@ -57,6 +62,14 @@ static ErlDrvData ttysl_start(ErlDrvPort, char*);
 #include <langinfo.h>
 #endif
 
+#if defined IOV_MAX
+#define MAXIOV IOV_MAX
+#elif defined UIO_MAXIOV
+#define MAXIOV UIO_MAXIOV
+#else
+#define MAXIOV 16
+#endif
+
 #define TRUE 1
 #define FALSE 0
 
@@ -80,12 +93,15 @@ static volatile int cols_needs_update = FALSE;
 #define OP_INSC 2
 #define OP_DELC 3
 #define OP_BEEP 4
+#define OP_PUTC_SYNC 5
 /* Control op */
 #define CTRL_OP_GET_WINSIZE 100
 #define CTRL_OP_GET_UNICODE_STATE 101
 #define CTRL_OP_SET_UNICODE_STATE 102
 
-
+/* We use 1024 as the buf size as that was the default buf size of FILE streams
+   on all platforms that I checked. */
+#define TTY_BUFFSIZE 1024
 
 static int lbuf_size = BUFSIZ;
 static Uint32 *lbuf;		/* The current line buffer */
@@ -113,13 +129,19 @@ static int lpos;                /* The current "cursor position" in the line buf
 /* Main interface functions. */
 static void ttysl_stop(ErlDrvData);
 static void ttysl_from_erlang(ErlDrvData, char*, ErlDrvSizeT);
+static void ttysl_to_tty(ErlDrvData, ErlDrvEvent);
+static void ttysl_flush_tty(ErlDrvData);
 static void ttysl_from_tty(ErlDrvData, ErlDrvEvent);
 static void ttysl_stop_select(ErlDrvEvent, void*);
 static Sint16 get_sint16(char*);
 
 static ErlDrvPort ttysl_port;
 static int ttysl_fd;
-static FILE *ttysl_out;
+static int ttysl_terminate = 0;
+static int ttysl_send_ok = 0;
+static ErlDrvBinary *putcbuf;
+static int putcpos;
+static int putclen;
 
 /* Functions that work on the line buffer. */
 static int start_lbuf(void);
@@ -201,22 +223,22 @@ struct erl_drv_entry ttsl_driver_entry = {
     IF_IMPL(ttysl_stop),
     IF_IMPL(ttysl_from_erlang),
     IF_IMPL(ttysl_from_tty),
-    NULL,
-    "tty_sl",
-    NULL,
-    NULL,
+    IF_IMPL(ttysl_to_tty),
+    "tty_sl", /* driver_name */
+    NULL, /* finish */
+    NULL, /* handle */
     IF_IMPL(ttysl_control),
     NULL, /* timeout */
     NULL, /* outputv */
     NULL, /* ready_async */
-    NULL, /* flush */
+    IF_IMPL(ttysl_flush_tty),
     NULL, /* call */
     NULL, /* event */
     ERL_DRV_EXTENDED_MARKER,
     ERL_DRV_EXTENDED_MAJOR_VERSION,
     ERL_DRV_EXTENDED_MINOR_VERSION,
     0, /* ERL_DRV_FLAGs */
-    NULL,
+    NULL, /* handle2 */
     NULL, /* process_exit */
     IF_IMPL(ttysl_stop_select)
 };
@@ -296,8 +318,7 @@ static ErlDrvData ttysl_start(ErlDrvPort port, char* buf)
 	return ERL_DRV_ERROR_GENERAL;
     }
 
-    /* Open the terminal and set the terminal */
-    ttysl_out = fdopen(ttysl_fd, "w");
+    SET_NONBLOCKING(ttysl_fd);
 
 #ifdef PRIMITIVE_UTF8_CHECK
     setlocale(LC_CTYPE, "");  /* Set international environment, 
@@ -317,8 +338,8 @@ static ErlDrvData ttysl_start(ErlDrvPort port, char* buf)
     }
 #endif
     DEBUGLOG(("utf8_mode is %s\n",(utf8_mode) ? "on" : "off"));
-    sys_sigset(SIGCONT, cont);
-    sys_sigset(SIGWINCH, winch);
+    sys_signal(SIGCONT, cont);
+    sys_signal(SIGWINCH, winch);
 
     driver_select(port, (ErlDrvEvent)(UWord)ttysl_fd, ERL_DRV_READ|ERL_DRV_USE, 1);
     ttysl_port = port;
@@ -400,12 +421,14 @@ static void ttysl_stop(ErlDrvData ttysl_data)
 	stop_lbuf();
 	stop_termcap();
 	tty_reset(ttysl_fd);
-	driver_select(ttysl_port, (ErlDrvEvent)(UWord)ttysl_fd, ERL_DRV_READ|ERL_DRV_USE, 0);
-	sys_sigset(SIGCONT, SIG_DFL);
-	sys_sigset(SIGWINCH, SIG_DFL);
+	driver_select(ttysl_port, (ErlDrvEvent)(UWord)ttysl_fd,
+                      ERL_DRV_WRITE|ERL_DRV_READ|ERL_DRV_USE, 0);
+	sys_signal(SIGCONT, SIG_DFL);
+	sys_signal(SIGWINCH, SIG_DFL);
     }
     ttysl_port = (ErlDrvPort)-1;
     ttysl_fd = -1;
+    ttysl_terminate = 0;
     /* return TRUE; */
 }
 
@@ -650,10 +673,26 @@ static int check_buf_size(byte *s, int n)
 
 static void ttysl_from_erlang(ErlDrvData ttysl_data, char* buf, ErlDrvSizeT count)
 {
+    ErlDrvSizeT sz;
+
+    sz = driver_sizeq(ttysl_port);
+
+    putclen = count > TTY_BUFFSIZE ? TTY_BUFFSIZE : count;
+    putcbuf = driver_alloc_binary(putclen);
+    putcpos = 0;
+
     if (lpos > MAXSIZE) 
 	put_chars((byte*)"\n", 1);
 
     switch (buf[0]) {
+    case OP_PUTC_SYNC:
+        /* Using sync means that we have to send an ok to the
+           controlling process for each command call. We delay
+           sending ok if the driver queue exceeds a certain size.
+           We do not set ourselves as a busy port, as this
+           could be very bad for user_drv, if it gets blocked on
+           the port_command. */
+        /* fall through */
     case OP_PUTC:
 	DEBUGLOG(("OP: Putc(%lu)",(unsigned long) count-1));
 	if (check_buf_size((byte*)buf+1, count-1) == 0)
@@ -678,10 +717,104 @@ static void ttysl_from_erlang(ErlDrvData ttysl_data, char* buf, ErlDrvSizeT coun
 	/* Unknown op, just ignore. */
 	break;
     }
-    fflush(ttysl_out);
+
+    driver_enq_bin(ttysl_port,putcbuf,0,putcpos);
+
+    if (sz == 0) {
+        for (;;) {
+            int written, qlen;
+            SysIOVec *iov;
+
+            iov = driver_peekq(ttysl_port,&qlen);
+            if (iov)
+                written = writev(ttysl_fd, iov, qlen > MAXIOV ? MAXIOV : qlen);
+            else
+                written = 0;
+            if (written < 0) {
+                if (errno == EAGAIN) {
+                    driver_select(ttysl_port,(ErlDrvEvent)(long)ttysl_fd,
+                                  ERL_DRV_USE|ERL_DRV_WRITE,1);
+                    break;
+                } else {
+                    /* we ignore all other errors */
+                    break;
+                }
+            } else {
+                if (driver_deq(ttysl_port, written) == 0)
+                    break;
+            }
+        }
+    }
+
+    if (buf[0] == OP_PUTC_SYNC) {
+        if (driver_sizeq(ttysl_port) > TTY_BUFFSIZE && !ttysl_terminate) {
+            /* We delay sending the ack until the buffer has been consumed */
+            ttysl_send_ok = 1;
+        } else {
+            ErlDrvTermData spec[] = {
+                ERL_DRV_PORT, driver_mk_port(ttysl_port),
+                ERL_DRV_ATOM, driver_mk_atom("ok"),
+                ERL_DRV_TUPLE, 2
+            };
+            ASSERT(ttysl_send_ok == 0);
+            erl_drv_output_term(driver_mk_port(ttysl_port), spec,
+                                sizeof(spec) / sizeof(spec[0]));
+        }
+    }
+
     return; /* TRUE; */
 }
 
+static void ttysl_to_tty(ErlDrvData ttysl_data, ErlDrvEvent fd) {
+    for (;;) {
+        int written, qlen;
+        SysIOVec *iov;
+        ErlDrvSizeT sz;
+
+        iov = driver_peekq(ttysl_port,&qlen);
+        if (iov)
+            written = writev(ttysl_fd, iov, qlen > MAXIOV ? MAXIOV : qlen);
+        else
+            written = 0;
+        if (written < 0) {
+            if (errno == EAGAIN) {
+                break;
+            } else {
+                /* we ignore all other errors */
+            }
+        } else {
+            sz = driver_deq(ttysl_port, written);
+            if (sz < TTY_BUFFSIZE && ttysl_send_ok) {
+                ErlDrvTermData spec[] = {
+                    ERL_DRV_PORT, driver_mk_port(ttysl_port),
+                    ERL_DRV_ATOM, driver_mk_atom("ok"),
+                    ERL_DRV_TUPLE, 2
+                };
+                ttysl_send_ok = 0;
+                erl_drv_output_term(driver_mk_port(ttysl_port), spec,
+                                    sizeof(spec) / sizeof(spec[0]));
+            }
+            if (sz == 0) {
+                driver_select(ttysl_port,(ErlDrvEvent)(long)ttysl_fd,
+                              ERL_DRV_WRITE,0);
+                if (ttysl_terminate)
+                    /* flush has been called, which means we should terminate
+                       when queue is empty. This will not send any exit
+                       message */
+                    driver_failure_atom(ttysl_port, "normal");
+                break;
+            }
+        }
+    }
+
+    return;
+}
+
+static void ttysl_flush_tty(ErlDrvData ttysl_data) {
+    ttysl_terminate = 1;
+    return;
+}
+
 static void ttysl_from_tty(ErlDrvData ttysl_data, ErlDrvEvent fd)
 {
     byte b[1024];
@@ -1070,7 +1203,14 @@ static int write_buf(Uint32 *s, int n)
 /* The basic procedure for outputting one character. */
 static int outc(int c)
 {
-    return (int)putc(c, ttysl_out);
+    putcbuf->orig_bytes[putcpos++] = c;
+    if (putcpos == putclen) {
+        driver_enq_bin(ttysl_port,putcbuf,0,putclen);
+        putcpos = 0;
+        putclen = TTY_BUFFSIZE;
+        putcbuf = driver_alloc_binary(BUFSIZ);
+    }
+    return 1;
 }
 
 static int move_cursor(int from, int to)
@@ -1318,11 +1458,11 @@ static RETSIGTYPE suspend(int sig)
 	exit(1);
     }
 
-    sys_sigset(sig, SIG_DFL);	/* Set signal handler to default */
+    sys_signal(sig, SIG_DFL);	/* Set signal handler to default */
     sys_sigrelease(sig);	/* Allow 'sig' to come through */
     kill(getpid(), sig);	/* Send ourselves the signal */
     sys_sigblock(sig);		/* Reset to old mask */
-    sys_sigset(sig, suspend);	/* Reset signal handler */ 
+    sys_signal(sig, suspend);	/* Reset signal handler */ 
 
     if (tty_set(ttysl_fd) < 0) {
 	fprintf(stderr,"Can't set tty raw \n");
diff --git a/erts/emulator/drivers/win32/ttsl_drv.c b/erts/emulator/drivers/win32/ttsl_drv.c
index 502cb58dfa..851c336a11 100644
--- a/erts/emulator/drivers/win32/ttsl_drv.c
+++ b/erts/emulator/drivers/win32/ttsl_drv.c
@@ -46,6 +46,7 @@ static int rows;		/* Number of rows available. */
 #define OP_INSC 2
 #define OP_DELC 3
 #define OP_BEEP 4
+#define OP_PUTC_SYNC 5
 
 /* Control op */
 #define CTRL_OP_GET_WINSIZE 100
@@ -458,6 +459,7 @@ static void ttysl_from_erlang(ErlDrvData ttysl_data, char* buf, ErlDrvSizeT coun
 
     switch (buf[0]) {
     case OP_PUTC:
+    case OP_PUTC_SYNC:
 	DEBUGLOG(("OP: Putc(%I64u)",(unsigned long long)count-1));
 	if (check_buf_size((byte*)buf+1, count-1) == 0)
 	    return; 
@@ -481,6 +483,20 @@ static void ttysl_from_erlang(ErlDrvData ttysl_data, char* buf, ErlDrvSizeT coun
 	/* Unknown op, just ignore. */
 	break;
     }
+
+    if (buf[0] == OP_PUTC_SYNC) {
+        /* On windows we do a blocking write to the tty so we just
+           send the ack immidiately. If at some point in the future
+           someone has a problem with tty output being blocking
+           this has to be changed. */
+        ErlDrvTermData spec[] = {
+            ERL_DRV_PORT, driver_mk_port(ttysl_port),
+            ERL_DRV_ATOM, driver_mk_atom("ok"),
+            ERL_DRV_TUPLE, 2
+        };
+        erl_drv_output_term(driver_mk_port(ttysl_port), spec,
+                            sizeof(spec) / sizeof(spec[0]));
+    }
     return;
 }
 
diff --git a/erts/emulator/hipe/hipe_amd64.c b/erts/emulator/hipe/hipe_amd64.c
index b5dff06987..63646825b2 100644
--- a/erts/emulator/hipe/hipe_amd64.c
+++ b/erts/emulator/hipe/hipe_amd64.c
@@ -125,7 +125,7 @@ static void atexit_alloc_code_stats(void)
 #define MAP_ANONYMOUS MAP_ANON
 #endif
 
-static void morecore(unsigned int alloc_bytes)
+static int morecore(unsigned int alloc_bytes)
 {
     unsigned int map_bytes;
     char *map_hint, *map_start;
@@ -174,10 +174,9 @@ static void morecore(unsigned int alloc_bytes)
 	abort();
     }
 #endif
-    if (map_start == MAP_FAILED) {
-	perror("mmap");
-	abort();
-    }
+    if (map_start == MAP_FAILED)
+	return -1;
+
     ALLOC_CODE_STATS(total_mapped += map_bytes);
 
     /* Merge adjacent mappings, so the trailing portion of the previous
@@ -197,6 +196,8 @@ static void morecore(unsigned int alloc_bytes)
     }
 
     ALLOC_CODE_STATS(atexit_alloc_code_stats());
+
+    return 0;
 }
 
 static void *alloc_code(unsigned int alloc_bytes)
@@ -206,8 +207,8 @@ static void *alloc_code(unsigned int alloc_bytes)
     /* Align function entries. */
     alloc_bytes = (alloc_bytes + 3) & ~3;
 
-    if (code_bytes < alloc_bytes)
-	morecore(alloc_bytes);
+    if (code_bytes < alloc_bytes && morecore(alloc_bytes) != 0)
+	return NULL;
     ALLOC_CODE_STATS(++nr_allocs);
     ALLOC_CODE_STATS(total_alloc += alloc_bytes);
     res = code_next;
@@ -224,18 +225,18 @@ void *hipe_alloc_code(Uint nrbytes, Eterm callees, Eterm *trampolines, Process *
     return alloc_code(nrbytes);
 }
 
-/* called from hipe_bif0.c:hipe_bifs_make_native_stub_2()
-   and hipe_bif0.c:hipe_make_stub() */
-void *hipe_make_native_stub(void *beamAddress, unsigned int beamArity)
+/* Make stub for native code calling exported beam function.
+*/
+void *hipe_make_native_stub(void *callee_exp, unsigned int beamArity)
 {
     /*
      * This creates a native code stub with the following contents:
      *
-     * movq $Address, P_BEAM_IP(%ebp)  %% Actually two movl
+     * movq $Address, P_CALLEE_EXP(%ebp)  %% Actually two movl
      * movb $Arity, P_ARITY(%ebp)
      * jmp callemu
      *
-     * The stub has variable size, depending on whether the P_BEAM_IP
+     * The stub has variable size, depending on whether the P_CALLEE_EXP
      * and P_ARITY offsets fit in 8-bit signed displacements or not.
      * The rel32 offset in the final jmp depends on its actual location,
      * which also depends on the size of the previous instructions.
@@ -248,49 +249,51 @@ void *hipe_make_native_stub(void *beamAddress, unsigned int beamArity)
 
     codeSize =	/* 23, 26, 29, or 32 bytes */
       23 +	/* 23 when all offsets are 8-bit */
-      (P_BEAM_IP >= 128 ? 3 : 0) +
-      ((P_BEAM_IP + 4) >= 128 ? 3 : 0) +
+      (P_CALLEE_EXP >= 128 ? 3 : 0) +
+      ((P_CALLEE_EXP + 4) >= 128 ? 3 : 0) +
       (P_ARITY >= 128 ? 3 : 0);
     codep = code = alloc_code(codeSize);
+    if (!code)
+	return NULL;
 
-    /* movl $beamAddress, P_BEAM_IP(%ebp); 3 or 6 bytes, plus 4 */
+    /* movl $callee_exp, P_CALLEE_EXP(%ebp); 3 or 6 bytes, plus 4 */
     codep[0] = 0xc7;
-#if P_BEAM_IP >= 128
+#if P_CALLEE_EXP >= 128
     codep[1] = 0x85;	/* disp32[EBP] */
-    codep[2] =  P_BEAM_IP        & 0xFF;
-    codep[3] = (P_BEAM_IP >>  8) & 0xFF;
-    codep[4] = (P_BEAM_IP >> 16) & 0xFF;
-    codep[5] = (P_BEAM_IP >> 24) & 0xFF;
+    codep[2] =  P_CALLEE_EXP        & 0xFF;
+    codep[3] = (P_CALLEE_EXP >>  8) & 0xFF;
+    codep[4] = (P_CALLEE_EXP >> 16) & 0xFF;
+    codep[5] = (P_CALLEE_EXP >> 24) & 0xFF;
     codep += 6;
 #else
     codep[1] = 0x45;	/* disp8[EBP] */
-    codep[2] = P_BEAM_IP;
+    codep[2] = P_CALLEE_EXP;
     codep += 3;
 #endif
-    codep[0] = ((unsigned long)beamAddress      ) & 0xFF;
-    codep[1] = ((unsigned long)beamAddress >>  8) & 0xFF;
-    codep[2] = ((unsigned long)beamAddress >> 16) & 0xFF;
-    codep[3] = ((unsigned long)beamAddress >> 24) & 0xFF;
+    codep[0] = ((unsigned long)callee_exp      ) & 0xFF;
+    codep[1] = ((unsigned long)callee_exp >>  8) & 0xFF;
+    codep[2] = ((unsigned long)callee_exp >> 16) & 0xFF;
+    codep[3] = ((unsigned long)callee_exp >> 24) & 0xFF;
     codep += 4;
 
-    /* movl (shl 32 $beamAddress), P_BEAM_IP+4(%ebp); 3 or 6 bytes, plus 4 */
+    /* movl (shl 32 $callee_exp), P_CALLEE_EXP+4(%ebp); 3 or 6 bytes, plus 4 */
     codep[0] = 0xc7;
-#if P_BEAM_IP+4 >= 128
+#if P_CALLEE_EXP+4 >= 128
     codep[1] = 0x85;	/* disp32[EBP] */
-    codep[2] =  (P_BEAM_IP+4)        & 0xFF;
-    codep[3] = ((P_BEAM_IP+4) >>  8) & 0xFF;
-    codep[4] = ((P_BEAM_IP+4) >> 16) & 0xFF;
-    codep[5] = ((P_BEAM_IP+4) >> 24) & 0xFF;
+    codep[2] =  (P_CALLEE_EXP+4)        & 0xFF;
+    codep[3] = ((P_CALLEE_EXP+4) >>  8) & 0xFF;
+    codep[4] = ((P_CALLEE_EXP+4) >> 16) & 0xFF;
+    codep[5] = ((P_CALLEE_EXP+4) >> 24) & 0xFF;
     codep += 6;
 #else
     codep[1] = 0x45;	/* disp8[EBP] */
-    codep[2] =  (P_BEAM_IP+4);
+    codep[2] =  (P_CALLEE_EXP+4);
     codep += 3;
 #endif
-    codep[0] = ((unsigned long)beamAddress >> 32) & 0xFF;
-    codep[1] = ((unsigned long)beamAddress >> 40) & 0xFF;
-    codep[2] = ((unsigned long)beamAddress >> 48) & 0xFF;
-    codep[3] = ((unsigned long)beamAddress >> 56) & 0xFF;
+    codep[0] = ((unsigned long)callee_exp >> 32) & 0xFF;
+    codep[1] = ((unsigned long)callee_exp >> 40) & 0xFF;
+    codep[2] = ((unsigned long)callee_exp >> 48) & 0xFF;
+    codep[3] = ((unsigned long)callee_exp >> 56) & 0xFF;
     codep += 4;
 
     /* movb $beamArity, P_ARITY(%ebp); 3 or 6 bytes */
diff --git a/erts/emulator/hipe/hipe_amd64_abi.txt b/erts/emulator/hipe/hipe_amd64_abi.txt
index 8a34bfa67f..72aed13995 100644
--- a/erts/emulator/hipe/hipe_amd64_abi.txt
+++ b/erts/emulator/hipe/hipe_amd64_abi.txt
@@ -45,7 +45,7 @@ The first return value from a function is placed in %rax, the second
 (if any) is placed in %rdx.
 
 Notes:
-- Currently, NR_ARG_REGS==0.
+- Currently, NR_ARG_REGS == 4.
 - C BIFs expect P in C parameter register 1: %rdi. By making Erlang
   parameter registers 1-5 coincide with C parameter registers 2-6,
   our BIF wrappers can simply move P to %rdi without having to shift
diff --git a/erts/emulator/hipe/hipe_amd64_asm.m4 b/erts/emulator/hipe/hipe_amd64_asm.m4
index 7c81040b8b..ca55d5bf3b 100644
--- a/erts/emulator/hipe/hipe_amd64_asm.m4
+++ b/erts/emulator/hipe/hipe_amd64_asm.m4
@@ -33,7 +33,35 @@ define(HEAP_LIMIT_IN_REGISTER,0)dnl global for HL
 define(SIMULATE_NSP,0)dnl change to 1 to simulate call/ret insns
 
 `#define AMD64_LEAF_WORDS	'LEAF_WORDS
-`#define LEAF_WORDS	'LEAF_WORDS
+`#define LEAF_WORDS		'LEAF_WORDS
+`#define AMD64_NR_ARG_REGS	'NR_ARG_REGS
+`#define NR_ARG_REGS		'NR_ARG_REGS
+
+`#define AMD64_HP_IN_REGISTER	'HP_IN_REGISTER
+`#if AMD64_HP_IN_REGISTER'
+`#define AMD64_HEAP_POINTER 15'
+define(HP,%r15)dnl Only change this together with above
+`#endif'
+
+`#define AMD64_FCALLS_IN_REGISTER 'FCALLS_IN_REGISTER
+`#if AMD64_FCALLS_IN_REGISTER'
+`#define AMD64_FCALLS_REGISTER 11'
+define(FCALLS,%r11)dnl This goes together with line above
+`#endif'
+
+`#define AMD64_HEAP_LIMIT_IN_REGISTER 'HEAP_LIMIT_IN_REGISTER
+`#if AMD64_HEAP_LIMIT_IN_REGISTER'
+`#define AMD64_HEAP_LIMIT_REGISTER 12'
+define(HEAP_LIMIT,%r12)dnl Change this together with line above
+`#endif'
+
+`#define AMD64_SIMULATE_NSP	'SIMULATE_NSP
+
+
+`#ifdef ASM'
+/*
+ * Only assembler stuff from here on (when included from *.S)
+ */
 
 /*
  * Workarounds for Darwin.
@@ -63,33 +91,24 @@ ifelse(OPSYS,darwin,``
  */
 `#define P		%rbp'
 
-`#define AMD64_HP_IN_REGISTER	'HP_IN_REGISTER
 `#if AMD64_HP_IN_REGISTER
-#define AMD64_HEAP_POINTER 15'
-define(HP,%r15)dnl Only change this together with above
-`#define SAVE_HP	movq 'HP`, P_HP(P)
+#define SAVE_HP	        movq 'HP`, P_HP(P)
 #define RESTORE_HP	movq P_HP(P), 'HP`
 #else
 #define SAVE_HP		/*empty*/
 #define RESTORE_HP	/*empty*/
 #endif'
 
-`#define AMD64_FCALLS_IN_REGISTER 'FCALLS_IN_REGISTER
 `#if AMD64_FCALLS_IN_REGISTER
-#define AMD64_FCALLS_REGISTER 11'
-define(FCALLS,%r11)dnl This goes together with line above
-`#define SAVE_FCALLS	movq 'FCALLS`, P_FCALLS(P)
+#define SAVE_FCALLS	movq 'FCALLS`, P_FCALLS(P)
 #define RESTORE_FCALLS	movq P_FCALLS(P), 'FCALLS`
 #else
 #define SAVE_FCALLS	/*empty*/
 #define RESTORE_FCALLS	/*empty*/
 #endif'
 
-`#define AMD64_HEAP_LIMIT_IN_REGISTER 'HEAP_LIMIT_IN_REGISTER
 `#if AMD64_HEAP_LIMIT_IN_REGISTER
-#define AMD64_HEAP_LIMIT_REGISTER 12'
-define(HEAP_LIMIT,%r12)dnl Change this together with line above
-`#define RESTORE_HEAP_LIMIT	movq P_HP_LIMIT(P), 'HEAP_LIMIT`
+#define RESTORE_HEAP_LIMIT	movq P_HP_LIMIT(P), 'HEAP_LIMIT`
 #else
 #define RESTORE_HEAP_LIMIT	/*empty*/
 #endif'
@@ -99,7 +118,6 @@ define(NSP,%rsp)dnl
 `#define SAVE_CSP	movq	%rsp, P_CSP(P)
 #define RESTORE_CSP	movq	P_CSP(P), %rsp'
 
-`#define AMD64_SIMULATE_NSP	'SIMULATE_NSP
 
 /*
  * Context switching macros.
@@ -132,8 +150,6 @@ define(NSP,%rsp)dnl
 /*
  * Argument (parameter) registers.
  */
-`#define AMD64_NR_ARG_REGS	'NR_ARG_REGS
-`#define NR_ARG_REGS		'NR_ARG_REGS
 
 define(defarg,`define(ARG$1,`$2')dnl
 #`define ARG'$1	$2'
@@ -237,6 +253,10 @@ define(NBIF_ARG,`ifelse(eval($3 >= NR_ARG_REGS),0,`NBIF_REG_ARG($1,$3)',`NBIF_ST
 `/* #define NBIF_ARG_3_0	'NBIF_ARG(%rsi,3,0)` */'
 `/* #define NBIF_ARG_3_1	'NBIF_ARG(%rdx,3,1)` */'
 `/* #define NBIF_ARG_3_2	'NBIF_ARG(%rcx,3,2)` */'
+`/* #define NBIF_ARG_4_0	'NBIF_ARG(%rsi,4,0)` */'
+`/* #define NBIF_ARG_4_1	'NBIF_ARG(%rdx,4,1)` */'
+`/* #define NBIF_ARG_4_2	'NBIF_ARG(%rcx,4,2)` */'
+`/* #define NBIF_ARG_4_3	'NBIF_ARG(%r8,4,3)` */'
 `/* #define NBIF_ARG_5_0	'NBIF_ARG(%rsi,5,0)` */'
 `/* #define NBIF_ARG_5_1	'NBIF_ARG(%rdx,5,1)` */'
 `/* #define NBIF_ARG_5_2	'NBIF_ARG(%rcx,5,2)` */'
@@ -261,6 +281,9 @@ define(NBIF_RET,`NBIF_RET_N(eval(RET_POP($1)))')dnl
 `/* #define NBIF_RET_1	'NBIF_RET(1)` */'
 `/* #define NBIF_RET_2	'NBIF_RET(2)` */'
 `/* #define NBIF_RET_3	'NBIF_RET(3)` */'
+`/* #define NBIF_RET_4	'NBIF_RET(4)` */'
 `/* #define NBIF_RET_5	'NBIF_RET(5)` */'
 
+`#endif /* ASM */'
+
 `#endif /* HIPE_AMD64_ASM_H */'
diff --git a/erts/emulator/hipe/hipe_amd64_bifs.m4 b/erts/emulator/hipe/hipe_amd64_bifs.m4
index a3219c7586..74cb9112ce 100644
--- a/erts/emulator/hipe/hipe_amd64_bifs.m4
+++ b/erts/emulator/hipe/hipe_amd64_bifs.m4
@@ -18,7 +18,7 @@ changecom(`/*', `*/')dnl
  * %CopyrightEnd%
  */
 
-
+#`define ASM'
 include(`hipe/hipe_amd64_asm.m4')
 #`include' "config.h"
 #`include' "hipe_literals.h"
@@ -51,9 +51,10 @@ define(HANDLE_GOT_MBUF,`
  * standard_bif_interface_1(nbif_name, cbif_name)
  * standard_bif_interface_2(nbif_name, cbif_name)
  * standard_bif_interface_3(nbif_name, cbif_name)
+ * standard_bif_interface_4(nbif_name, cbif_name)
  * standard_bif_interface_0(nbif_name, cbif_name)
  *
- * Generate native interface for a BIF with 0-3 parameters and
+ * Generate native interface for a BIF with 0-4 parameters and
  * standard failure mode.
  */
 define(standard_bif_interface_1,
@@ -154,6 +155,42 @@ ASYM($1):
 	TYPE_FUNCTION(ASYM($1))
 #endif')
 
+define(standard_bif_interface_4,
+`
+#ifndef HAVE_$1
+#`define' HAVE_$1
+	TEXT
+	.align  4
+	GLOBAL(ASYM($1))
+ASYM($1):
+	/* set up the parameters */
+	movq	P, %rdi
+	NBIF_ARG(%rsi,4,0)
+	NBIF_ARG(%rdx,4,1)
+	NBIF_ARG(%rcx,4,2)
+	NBIF_ARG(%r8,4,3)
+
+	/* make the call on the C stack */
+	SWITCH_ERLANG_TO_C
+	pushq	%r8
+	pushq	%rcx
+	pushq	%rdx
+	pushq	%rsi
+	movq	%rsp, %rsi	/* Eterm* BIF__ARGS */
+	CALL_BIF($2)
+	add	$(4*8), %rsp
+	TEST_GOT_MBUF
+	SWITCH_C_TO_ERLANG
+
+	/* throw exception if failure, otherwise return */
+	TEST_GOT_EXN
+	jz	nbif_4_simple_exception
+	NBIF_RET(4)
+	HANDLE_GOT_MBUF(4)
+	SET_SIZE(ASYM($1))
+	TYPE_FUNCTION(ASYM($1))
+#endif')
+
 define(standard_bif_interface_0,
 `
 #ifndef HAVE_$1
diff --git a/erts/emulator/hipe/hipe_amd64_glue.S b/erts/emulator/hipe/hipe_amd64_glue.S
index 8816906870..3cb0a2875b 100644
--- a/erts/emulator/hipe/hipe_amd64_glue.S
+++ b/erts/emulator/hipe/hipe_amd64_glue.S
@@ -17,10 +17,9 @@
  * %CopyrightEnd%
  */
 
-
+#define ASM
 #include "hipe_amd64_asm.h"
 #include "hipe_literals.h"
-#define ASM
 #include "hipe_mode_switch.h"
 
 /*
@@ -109,7 +108,7 @@ ASYM(nbif_return):
  * stub (hipe_x86_loader.erl) which should look as follows:
  *
  * stub for f/N:
- *	movq	$<f's BEAM code address>, P_BEAM_IP(P)
+ *	movq	$<f's export entry address>, P_CALLEE_EXP(P)
  *	movb	$<N>, P_ARITY(P)
  *	jmp	nbif_callemu
  *
@@ -119,7 +118,7 @@ ASYM(nbif_return):
 	GLOBAL(ASYM(nbif_callemu))
 ASYM(nbif_callemu):
 	STORE_ARG_REGS
-	movl	$HIPE_MODE_SWITCH_RES_CALL, %eax
+	movl	$HIPE_MODE_SWITCH_RES_CALL_EXPORTED, %eax
 	jmp	.suspend_exit
 
 /*
@@ -322,6 +321,7 @@ ASYM(nbif_fail):
 	GLOBAL(nbif_1_gc_after_bif)
 	GLOBAL(nbif_2_gc_after_bif)
 	GLOBAL(nbif_3_gc_after_bif)
+	GLOBAL(nbif_4_gc_after_bif)
 	.align	4
 nbif_0_gc_after_bif:
 	xorl	%edx, %edx
@@ -337,6 +337,10 @@ nbif_2_gc_after_bif:
 	.align	4
 nbif_3_gc_after_bif:
 	movl	$3, %edx
+	jmp	.gc_after_bif
+	.align	4
+nbif_4_gc_after_bif:
+	movl	$4, %edx
 	/*FALLTHROUGH*/
 	.align	4
 .gc_after_bif:
@@ -360,6 +364,7 @@ nbif_3_gc_after_bif:
 	GLOBAL(nbif_1_simple_exception)
 	GLOBAL(nbif_2_simple_exception)
 	GLOBAL(nbif_3_simple_exception)
+	GLOBAL(nbif_4_simple_exception)
 	.align	4
 nbif_0_simple_exception:
 	xorl	%eax, %eax
@@ -375,6 +380,10 @@ nbif_2_simple_exception:
 	.align	4
 nbif_3_simple_exception:
 	movl	$3, %eax
+	jmp	.nbif_simple_exception
+	.align	4
+nbif_4_simple_exception:
+	movl	$4, %eax
 	/*FALLTHROUGH*/
 	.align	4
 .nbif_simple_exception:
diff --git a/erts/emulator/hipe/hipe_arch.h b/erts/emulator/hipe/hipe_arch.h
index 04ed980126..b45209b3f7 100644
--- a/erts/emulator/hipe/hipe_arch.h
+++ b/erts/emulator/hipe/hipe_arch.h
@@ -29,6 +29,7 @@ extern void hipe_patch_load_fe(Uint *address, Uint value);
 extern int hipe_patch_insn(void *address, Uint value, Eterm type);
 extern int hipe_patch_call(void *callAddress, void *destAddress, void *trampoline);
 
+extern void *hipe_alloc_code(Uint nrbytes, Eterm callees, Eterm *trampolines, Process *p);
 extern void *hipe_make_native_stub(void *beamAddress, unsigned int beamArity);
 
 #if defined(__sparc__)
diff --git a/erts/emulator/hipe/hipe_arm.c b/erts/emulator/hipe/hipe_arm.c
index 3db3ffe9b1..c0c6305c68 100644
--- a/erts/emulator/hipe/hipe_arm.c
+++ b/erts/emulator/hipe/hipe_arm.c
@@ -260,9 +260,9 @@ int hipe_patch_insn(void *address, Uint32 value, Eterm type)
     return 0;
 }
 
-/* called from hipe_bif0.c:hipe_bifs_make_native_stub_2()
-   and hipe_bif0.c:hipe_make_stub() */
-void *hipe_make_native_stub(void *beamAddress, unsigned int beamArity)
+/* Make stub for native code calling exported beam function
+*/
+void *hipe_make_native_stub(void *callee_exp, unsigned int beamArity)
 {
     unsigned int *code;
     unsigned int *tramp_callemu;
@@ -272,9 +272,9 @@ void *hipe_make_native_stub(void *beamAddress, unsigned int beamArity)
      * Native code calls BEAM via a stub looking as follows:
      *
      * mov r0, #beamArity
-     * ldr r8, [pc,#0] // beamAddress
+     * ldr r8, [pc,#0] // callee_exp
      * b nbif_callemu
-     * .long beamAddress
+     * .long callee_exp
      *
      * I'm using r0 and r8 since they aren't used for
      * parameter passing in native code. The branch to
@@ -283,6 +283,8 @@ void *hipe_make_native_stub(void *beamAddress, unsigned int beamArity)
      */
 
     code = alloc_stub(4, &tramp_callemu);
+    if (!code)
+	return NULL;
     callemu_offset = ((int)&nbif_callemu - ((int)&code[2] + 8)) >> 2;
     if (!(callemu_offset >= -0x00800000 && callemu_offset <= 0x007FFFFF)) {
 	callemu_offset = ((int)tramp_callemu - ((int)&code[2] + 8)) >> 2;
@@ -292,12 +294,12 @@ void *hipe_make_native_stub(void *beamAddress, unsigned int beamArity)
 
     /* mov r0, #beamArity */
     code[0] = 0xE3A00000 | (beamArity & 0xFF);
-    /* ldr r8, [pc,#0] // beamAddress */
+    /* ldr r8, [pc,#0] // callee_exp */
     code[1] = 0xE59F8000;
     /* b nbif_callemu */
     code[2] = 0xEA000000 | (callemu_offset & 0x00FFFFFF);
-    /* .long beamAddress */
-    code[3] = (unsigned int)beamAddress;
+    /* .long callee_exp */
+    code[3] = (unsigned int)callee_exp;
 
     hipe_flush_icache_range(code, 4*sizeof(int));
 
diff --git a/erts/emulator/hipe/hipe_arm.h b/erts/emulator/hipe/hipe_arm.h
index 19f2a986cf..b9cd1a750c 100644
--- a/erts/emulator/hipe/hipe_arm.h
+++ b/erts/emulator/hipe/hipe_arm.h
@@ -40,8 +40,4 @@ static __inline__ int hipe_word32_address_ok(void *address)
 
 extern void hipe_arm_inc_stack(void);
 
-/* for hipe_bifs_enter_code_2 */
-extern void *hipe_alloc_code(Uint nrbytes, Eterm callees, Eterm *trampolines, Process *p);
-#define HIPE_ALLOC_CODE(n,c,t,p) hipe_alloc_code((n),(c),(t),(p))
-
 #endif /* HIPE_ARM_H */
diff --git a/erts/emulator/hipe/hipe_arm_asm.m4 b/erts/emulator/hipe/hipe_arm_asm.m4
index 85dc84973d..ca6aef2f8d 100644
--- a/erts/emulator/hipe/hipe_arm_asm.m4
+++ b/erts/emulator/hipe/hipe_arm_asm.m4
@@ -29,6 +29,14 @@ define(LEAF_WORDS,16)dnl number of stack words for leaf functions
 define(NR_ARG_REGS,3)dnl admissible values are 0 to 6, inclusive
 
 `#define ARM_LEAF_WORDS	'LEAF_WORDS
+`#define ARM_NR_ARG_REGS	'NR_ARG_REGS
+`#define NR_ARG_REGS	'NR_ARG_REGS
+
+
+`#ifdef ASM'
+/*
+ * Only assembler stuff from here on (when included from *.S)
+ */
 
 /*
  * Reserved registers.
@@ -77,8 +85,6 @@ define(NR_ARG_REGS,3)dnl admissible values are 0 to 6, inclusive
 /*
  * Argument (parameter) registers.
  */
-`#define ARM_NR_ARG_REGS	'NR_ARG_REGS
-`#define NR_ARG_REGS	'NR_ARG_REGS
 
 define(defarg,`define(ARG$1,`$2')dnl
 #`define ARG'$1	$2'
@@ -157,6 +163,10 @@ define(NBIF_ARG,`ifelse(eval($3 >= NR_ARG_REGS),0,`NBIF_REG_ARG($1,$3)',`NBIF_ST
 `/* #define NBIF_ARG_3_0	'NBIF_ARG(r1,3,0)` */'
 `/* #define NBIF_ARG_3_1	'NBIF_ARG(r2,3,1)` */'
 `/* #define NBIF_ARG_3_2	'NBIF_ARG(r3,3,2)` */'
+`/* #define NBIF_ARG_4_0	'NBIF_ARG(r1,4,0)` */'
+`/* #define NBIF_ARG_4_1	'NBIF_ARG(r2,4,1)` */'
+`/* #define NBIF_ARG_4_2	'NBIF_ARG(r3,4,2)` */'
+`/* #define NBIF_ARG_4_3	'NBIF_ARG(r4,4,3)` */'
 `/* #define NBIF_ARG_5_0	'NBIF_ARG(r1,5,0)` */'
 `/* #define NBIF_ARG_5_1	'NBIF_ARG(r2,5,1)` */'
 `/* #define NBIF_ARG_5_2	'NBIF_ARG(r3,5,2)` */'
@@ -180,6 +190,7 @@ define(NBIF_RET,`NBIF_RET_N(eval(RET_POP($1)))')dnl
 `/* #define NBIF_RET_1	'NBIF_RET(1)` */'
 `/* #define NBIF_RET_2	'NBIF_RET(2)` */'
 `/* #define NBIF_RET_3	'NBIF_RET(3)` */'
+`/* #define NBIF_RET_4	'NBIF_RET(4)` */'
 `/* #define NBIF_RET_5	'NBIF_RET(5)` */'
 
 dnl
@@ -195,4 +206,6 @@ define(QUICK_CALL_RET,`NBIF_POP_N(eval(RET_POP($2)))b $1')dnl
 `/* #define QUICK_CALL_RET_F_3 'QUICK_CALL_RET(F,3)` */'
 `/* #define QUICK_CALL_RET_F_5 'QUICK_CALL_RET(F,5)` */'
 
+`#endif /* ASM */'
+
 `#endif /* HIPE_ARM_ASM_H */'
diff --git a/erts/emulator/hipe/hipe_arm_bifs.m4 b/erts/emulator/hipe/hipe_arm_bifs.m4
index 3ca9a1bcdb..6abc7545e0 100644
--- a/erts/emulator/hipe/hipe_arm_bifs.m4
+++ b/erts/emulator/hipe/hipe_arm_bifs.m4
@@ -19,6 +19,7 @@ changecom(`/*', `*/')dnl
  */
 
 
+#`define ASM'
 include(`hipe/hipe_arm_asm.m4')
 #`include' "config.h"
 #`include' "hipe_literals.h"
@@ -41,9 +42,10 @@ define(TEST_GOT_MBUF,`ldr r1, [P, #P_MBUF]	/* `TEST_GOT_MBUF' */
  * standard_bif_interface_1(nbif_name, cbif_name)
  * standard_bif_interface_2(nbif_name, cbif_name)
  * standard_bif_interface_3(nbif_name, cbif_name)
+ * standard_bif_interface_4(nbif_name, cbif_name)
  * standard_bif_interface_0(nbif_name, cbif_name)
  *
- * Generate native interface for a BIF with 1-3 parameters and
+ * Generate native interface for a BIF with 0-4 parameters and
  * standard failure mode.
  */
 define(standard_bif_interface_1,
@@ -133,6 +135,39 @@ $1:
 	.type	$1, %function
 #endif')
 
+define(standard_bif_interface_4,
+`
+#ifndef HAVE_$1
+#`define' HAVE_$1
+	.global	$1
+$1:
+	/* Set up C argument registers. */
+	mov	r0, P
+	NBIF_ARG(r1,4,0)
+	NBIF_ARG(r2,4,1)
+	NBIF_ARG(r3,4,2)
+	NBIF_ARG(r4,4,3)
+
+	/* Save caller-save registers and call the C function. */
+	SAVE_CONTEXT_BIF
+	str	r1, [r0, #P_ARG0]	/* Store BIF__ARGS in def_arg_reg[] */
+	str	r2, [r0, #P_ARG1]
+	str	r3, [r0, #P_ARG2]
+	str	r4, [r0, #P_ARG3]
+	add	r1, r0, #P_ARG0
+	CALL_BIF($2)
+	TEST_GOT_MBUF(4)
+
+	/* Restore registers. Check for exception. */
+	cmp	r0, #THE_NON_VALUE
+	RESTORE_CONTEXT_BIF
+	beq	nbif_4_simple_exception
+	NBIF_RET(4)
+	.ltorg
+	.size	$1, .-$1
+	.type	$1, %function
+#endif')
+
 define(standard_bif_interface_0,
 `
 #ifndef HAVE_$1
diff --git a/erts/emulator/hipe/hipe_arm_glue.S b/erts/emulator/hipe/hipe_arm_glue.S
index 5723afac12..edcabfd7a4 100644
--- a/erts/emulator/hipe/hipe_arm_glue.S
+++ b/erts/emulator/hipe/hipe_arm_glue.S
@@ -17,10 +17,9 @@
  * %CopyrightEnd%
  */
 
-
+#define ASM
 #include "hipe_arm_asm.h"
 #include "hipe_literals.h"
-#define ASM
 #include "hipe_mode_switch.h"
 
 	.text
@@ -141,7 +140,7 @@ hipe_arm_throw_to_native:
  * which should look as follows:
  *
  * stub for f/N:
- *	<set r8 to f's BEAM code address>
+ *	<set r8 to f's export entry address>
  *	<set r0 to N>
  *	b nbif_callemu
  *
@@ -150,10 +149,10 @@ hipe_arm_throw_to_native:
 	.global	nbif_callemu
 	.type	nbif_callemu, %function
 nbif_callemu:
-	str	r8, [P, #P_BEAM_IP]
+	str	r8, [P, #P_CALLEE_EXP]
 	str	r0, [P, #P_ARITY]
 	STORE_ARG_REGS
-	mov	r0, #HIPE_MODE_SWITCH_RES_CALL
+	mov	r0, #HIPE_MODE_SWITCH_RES_CALL_EXPORTED
 	b	.suspend_exit
 
 /*
@@ -331,6 +330,12 @@ nbif_2_gc_after_bif:
 	.type	nbif_3_gc_after_bif, %function
 nbif_3_gc_after_bif:
 	mov	r1, #3
+	b	.gc_after_bif
+
+	.global	nbif_4_gc_after_bif
+	.type	nbif_4_gc_after_bif, %function
+nbif_4_gc_after_bif:
+	mov	r1, #4
 	/*FALLTHROUGH*/
 .gc_after_bif:
 	str	r1, [P, #P_NARITY]
@@ -377,6 +382,12 @@ nbif_2_simple_exception:
 	.type	nbif_3_simple_exception, %function
 nbif_3_simple_exception:
 	mov	r1, #3
+	b	.nbif_simple_exception
+
+	.global	nbif_4_simple_exception
+	.type	nbif_4_simple_exception, %function
+nbif_4_simple_exception:
+	mov	r1, #4
 	/*FALLTHROUGH*/
 .nbif_simple_exception:
 	ldr	r0, [P, #P_FREASON]
diff --git a/erts/emulator/hipe/hipe_bif0.c b/erts/emulator/hipe/hipe_bif0.c
index 8af174170d..a4311d22e2 100644
--- a/erts/emulator/hipe/hipe_bif0.c
+++ b/erts/emulator/hipe/hipe_bif0.c
@@ -89,25 +89,6 @@ static Eterm address_to_term(const void *address, Process *p)
 /*
  * BIFs for reading and writing memory. Used internally by HiPE.
  */
-#if 0 /* XXX: unused */
-BIF_RETTYPE hipe_bifs_read_u8_1(BIF_ALIST_1)
-{
-    unsigned char *address = term_to_address(BIF_ARG_1);
-    if (!address)
-	BIF_ERROR(BIF_P, BADARG);
-    BIF_RET(make_small(*address));
-}
-#endif
-
-#if 0 /* XXX: unused */
-BIF_RETTYPE hipe_bifs_read_u32_1(BIF_ALIST_1)
-{
-    Uint32 *address = term_to_address(BIF_ARG_1);
-    if (!address || !hipe_word32_address_ok(address))
-	BIF_ERROR(BIF_P, BADARG);
-    BIF_RET(Uint_to_term(*address, BIF_P));
-}
-#endif
 
 BIF_RETTYPE hipe_bifs_write_u8_2(BIF_ALIST_2)
 {
@@ -120,22 +101,6 @@ BIF_RETTYPE hipe_bifs_write_u8_2(BIF_ALIST_2)
     BIF_RET(NIL);
 }
 
-#if 0 /* XXX: unused */
-BIF_RETTYPE hipe_bifs_write_s32_2(BIF_ALIST_2)
-{
-    Sint32 *address;
-    Sint value;
-
-    address = term_to_address(BIF_ARG_1);
-    if (!address || !hipe_word32_address_ok(address))
-	BIF_ERROR(BIF_P, BADARG);
-    if (!term_to_Sint32(BIF_ARG_2, &value))
-	BIF_ERROR(BIF_P, BADARG);
-    *address = value;
-    BIF_RET(NIL);
-}
-#endif
-
 BIF_RETTYPE hipe_bifs_write_u32_2(BIF_ALIST_2)
 {
     Uint32 *address;
@@ -432,15 +397,17 @@ BIF_RETTYPE hipe_bifs_enter_code_2(BIF_ALIST_2)
     ASSERT(bitoffs == 0);
     ASSERT(bitsize == 0);
     trampolines = NIL;
-#ifdef HIPE_ALLOC_CODE
-    address = HIPE_ALLOC_CODE(nrbytes, BIF_ARG_2, &trampolines, BIF_P);
-    if (!address)
-	BIF_ERROR(BIF_P, BADARG);
-#else
-    if (is_not_nil(BIF_ARG_2))
-	BIF_ERROR(BIF_P, BADARG);
-    address = erts_alloc(ERTS_ALC_T_HIPE, nrbytes);
-#endif
+    address = hipe_alloc_code(nrbytes, BIF_ARG_2, &trampolines, BIF_P);
+    if (!address) {
+	Uint nrcallees;
+
+	if (is_tuple(BIF_ARG_2))
+	    nrcallees = arityval(tuple_val(BIF_ARG_2)[0]);
+	else
+	    nrcallees = 0;
+	erl_exit(1, "%s: failed to allocate %lu bytes and %lu trampolines\r\n",
+		 __func__, (unsigned long)nrbytes, (unsigned long)nrcallees);
+    }
     memcpy(address, bytes, nrbytes);
     hipe_flush_icache_range(address, nrbytes);
     hp = HAlloc(BIF_P, 3);
@@ -639,33 +606,6 @@ BIF_RETTYPE hipe_bifs_fun_to_address_1(BIF_ALIST_1)
     BIF_RET(address_to_term(pc, BIF_P));
 }
 
-static void *hipe_get_emu_address(Eterm m, Eterm f, unsigned int arity, int is_remote)
-{
-    void *address = NULL;
-    if (!is_remote)
-	address = hipe_find_emu_address(m, f, arity);
-    if (!address) {
-	/* if not found, stub it via the export entry */
-	/* no lock needed around erts_export_get_or_make_stub() */
-	Export *export_entry = erts_export_get_or_make_stub(m, f, arity);
-	address = export_entry->addressv[erts_active_code_ix()];
-    }
-    return address;
-}
-
-#if 0 /* XXX: unused */
-BIF_RETTYPE hipe_bifs_get_emu_address_1(BIF_ALIST_1)
-{
-    struct mfa mfa;
-    void *address;
-
-    if (!term_to_mfa(BIF_ARG_1, &mfa))
-	BIF_ERROR(BIF_P, BADARG);
-    address = hipe_get_emu_address(mfa.mod, mfa.fun, mfa.ari);
-    BIF_RET(address_to_term(address, BIF_P));
-}
-#endif
-
 BIF_RETTYPE hipe_bifs_set_native_address_3(BIF_ALIST_3)
 {
     Eterm *pc;
@@ -713,33 +653,6 @@ BIF_RETTYPE hipe_bifs_set_native_address_3(BIF_ALIST_3)
     BIF_RET(am_false);
 }
 
-#if 0 /* XXX: unused */
-/*
- * hipe_bifs_address_to_fun(Address)
- *    - Address is the address of the start of a emu function's code
- *    - returns {Module, Function, Arity}
- */
-BIF_RETTYPE hipe_bifs_address_to_fun_1(BIF_ALIST_1)
-{
-    Eterm *pc;
-    Eterm *funcinfo;
-    Eterm *hp;
-
-    pc = term_to_address(BIF_ARG_1);
-    if (!pc)
-	BIF_ERROR(BIF_P, BADARG);
-    funcinfo = find_function_from_pc(pc);
-    if (!funcinfo)
-	BIF_RET(am_false);
-    hp = HAlloc(BIF_P, 4);
-    hp[0] = make_arityval(3);
-    hp[1] = funcinfo[0];
-    hp[2] = funcinfo[1];
-    hp[3] = make_small(funcinfo[2]);
-    BIF_RET(make_tuple(hp));
-}
-#endif
-
 BIF_RETTYPE hipe_bifs_enter_sdesc_1(BIF_ALIST_1)
 {
     struct sdesc *sdesc;
@@ -948,37 +861,6 @@ BIF_RETTYPE hipe_bifs_primop_address_1(BIF_ALIST_1)
     BIF_RET(address_to_term(primop->address, BIF_P));
 }
 
-#if 0 /* XXX: unused */
-/*
- * hipe_bifs_gbif_address(F,A) -> address or false
- */
-#define GBIF_LIST(ATOM,ARY,CFUN) extern Eterm gbif_##CFUN(void);
-#include "hipe_gbif_list.h"
-#undef GBIF_LIST
-
-BIF_RETTYPE hipe_bifs_gbif_address_2(BIF_ALIST_2)
-{
-    Uint arity;
-    void *address;
-
-    if (is_not_atom(BIF_ARG_1) || is_not_small(BIF_ARG_2))
-	BIF_RET(am_false);	/* error or false, does it matter? */
-    arity = signed_val(BIF_ARG_2);
-    /* XXX: replace with a hash table later */
-    do { /* trick to let us use 'break' instead of 'goto' */
-#define GBIF_LIST(ATOM,ARY,CFUN) if (BIF_ARG_1 == ATOM && arity == ARY) { address = CFUN; break; }
-#include "hipe_gbif_list.h"
-#undef GBIF_LIST
-	printf("\r\n%s: guard BIF ", __FUNCTION__);
-	fflush(stdout);
-	erts_printf("%T", BIF_ARG_1);
-	printf("/%lu isn't listed in hipe_gbif_list.h\r\n", arity);
-	BIF_RET(am_false);
-    } while (0);
-    BIF_RET(address_to_term(address, BIF_P));
-}
-#endif
-
 BIF_RETTYPE hipe_bifs_atom_to_word_1(BIF_ALIST_1)
 {
     if (is_not_atom(BIF_ARG_1))
@@ -1028,77 +910,13 @@ void hipe_emulate_fpe(Process* p)
 }
 #endif
 
-#if 0 /* XXX: unused */
-/*
- * At least parts of this should be inlined in native code.
- * The rest could be made a primop used by both the emulator and
- * native code...
- */
-BIF_RETTYPE hipe_bifs_make_fun_3(BIF_ALIST_3)
+void hipe_emasculate_binary(Eterm bin)
 {
-    Eterm free_vars;
-    Eterm mod;
-    Eterm *tp;
-    Uint index;
-    Uint uniq;
-    Uint num_free;
-    Eterm tmp_var;
-    Uint *tmp_ptr;
-    unsigned needed;
-    ErlFunThing *funp;
-    Eterm *hp;
-    int i;
-
-    if (is_not_list(BIF_ARG_1) && is_not_nil(BIF_ARG_1))
-	BIF_ERROR(BIF_P, BADARG);
-    free_vars = BIF_ARG_1;
-
-    if (is_not_atom(BIF_ARG_2))
-	BIF_ERROR(BIF_P, BADARG);
-    mod = BIF_ARG_2;
-
-    if (is_not_tuple(BIF_ARG_3) ||
-	(arityval(*tuple_val(BIF_ARG_3)) != 3))
-	BIF_ERROR(BIF_P, BADARG);
-    tp = tuple_val(BIF_ARG_3);
-
-    if (term_to_Uint(tp[1], &index) == 0)
-	BIF_ERROR(BIF_P, BADARG);
-    if (term_to_Uint(tp[2], &uniq) == 0)
-	BIF_ERROR(BIF_P, BADARG);
-    if (term_to_Uint(tp[3], &num_free) == 0)
-	BIF_ERROR(BIF_P, BADARG);
-
-    needed = ERL_FUN_SIZE + num_free;
-    funp = (ErlFunThing *) HAlloc(BIF_P, needed);
-    hp = funp->env;
-
-    funp->thing_word = HEADER_FUN;
-
-    /* Need a ErlFunEntry *fe
-     * fe->refc++;
-     * funp->fe = fe;
-     */
-
-    funp->num_free = num_free;
-    funp->creator = BIF_P->id;
-    for (i = 0; i < num_free; i++) {
-	if (is_nil(free_vars))
-	    BIF_ERROR(BIF_P, BADARG);
-	tmp_ptr = list_val(free_vars);
-	tmp_var = CAR(tmp_ptr);
-	free_vars = CDR(tmp_ptr);
-	*hp++ = tmp_var;
-    }
-    if (is_not_nil(free_vars))
-	BIF_ERROR(BIF_P, BADARG);
-
-    funp->next = MSO(BIF_P).funs;
-    MSO(BIF_P).funs = funp;
-
-    BIF_RET(make_fun(funp));
+    ProcBin* pb = (ProcBin *) boxed_val(bin);
+    ASSERT(pb->thing_word == HEADER_PROC_BIN);
+    ASSERT(pb->flags != 0);
+    erts_emasculate_writable_binary(pb);
 }
-#endif
 
 /*
  * args: Module, {Uniq, Index, BeamAddress}
@@ -1163,22 +981,6 @@ BIF_RETTYPE hipe_bifs_set_native_address_in_fe_2(BIF_ALIST_2)
     BIF_RET(am_true);
 }
 
-#if 0 /* XXX: unused */
-BIF_RETTYPE hipe_bifs_make_native_stub_2(BIF_ALIST_2)
-{
-    void *beamAddress;
-    Uint beamArity;
-    void *stubAddress;
-
-    if ((beamAddress = term_to_address(BIF_ARG_1)) == 0 ||
-	is_not_small(BIF_ARG_2) ||
-	(beamArity = unsigned_val(BIF_ARG_2)) >= 256)
-	BIF_ERROR(BIF_P, BADARG);
-    stubAddress = hipe_make_native_stub(beamAddress, beamArity);
-    BIF_RET(address_to_term(stubAddress, BIF_P));
-}
-#endif
-
 /*
  * MFA info hash table:
  * - maps MFA to native code entry point
@@ -1500,18 +1302,15 @@ void hipe_mfa_save_orig_beam_op(Eterm mod, Eterm fun, unsigned int ari, Eterm *p
 
 static void *hipe_make_stub(Eterm m, Eterm f, unsigned int arity, int is_remote)
 {
-    void *BEAMAddress;
+    Export *export_entry;
     void *StubAddress;
 
-#if 0
-    if (is_not_atom(m) || is_not_atom(f) || arity > 255)
-	return NULL;
-#endif
-    BEAMAddress = hipe_get_emu_address(m, f, arity, is_remote);
-    StubAddress = hipe_make_native_stub(BEAMAddress, arity);
-#if 0
-    hipe_mfa_set_na(m, f, arity, StubAddress);
-#endif
+    ASSERT(is_remote);
+
+    export_entry = erts_export_get_or_make_stub(m, f, arity);
+    StubAddress = hipe_make_native_stub(export_entry, arity);
+    if (!StubAddress)
+	erl_exit(1, "hipe_make_stub: code allocation failed\r\n");
     return StubAddress;
 }
 
@@ -1946,13 +1745,11 @@ BIF_RETTYPE hipe_bifs_check_crc_1(BIF_ALIST_1)
     BIF_RET(am_false);
 }
 
-BIF_RETTYPE hipe_bifs_system_crc_1(BIF_ALIST_1)
+BIF_RETTYPE hipe_bifs_system_crc_0(BIF_ALIST_0)
 {
     Uint crc;
 
-    if (!term_to_Uint(BIF_ARG_1, &crc))
-	BIF_ERROR(BIF_P, BADARG);
-    crc ^= (HIPE_SYSTEM_CRC ^ HIPE_LITERALS_CRC);
+    crc = HIPE_SYSTEM_CRC;
     BIF_RET(Uint_to_term(crc, BIF_P));
 }
 
diff --git a/erts/emulator/hipe/hipe_bif0.tab b/erts/emulator/hipe/hipe_bif0.tab
index 2514b1c3a5..4271a78de3 100644
--- a/erts/emulator/hipe/hipe_bif0.tab
+++ b/erts/emulator/hipe/hipe_bif0.tab
@@ -49,7 +49,6 @@ bif hipe_bifs:constants_size/0
 bif hipe_bifs:merge_term/1
 
 bif hipe_bifs:fun_to_address/1
-#bif hipe_bifs:get_emu_address/1
 bif hipe_bifs:set_native_address/3
 #bif hipe_bifs:address_to_fun/1
 
@@ -72,11 +71,10 @@ bif hipe_bifs:term_to_word/1
 bif hipe_bifs:get_fe/2
 bif hipe_bifs:set_native_address_in_fe/2
 
-#bif hipe_bifs:make_native_stub/2
 bif hipe_bifs:find_na_or_make_stub/2
 
 bif hipe_bifs:check_crc/1
-bif hipe_bifs:system_crc/1
+bif hipe_bifs:system_crc/0
 bif hipe_bifs:get_rts_param/1
 
 #bif hipe_bifs:tuple_to_float/1
@@ -142,4 +140,5 @@ atom bs_get_utf16
 atom bs_validate_unicode
 atom bs_validate_unicode_retract
 atom emulate_fpe
+atom emasculate_binary
 
diff --git a/erts/emulator/hipe/hipe_bif1.c b/erts/emulator/hipe/hipe_bif1.c
index 56767ef04b..ecb34df412 100644
--- a/erts/emulator/hipe/hipe_bif1.c
+++ b/erts/emulator/hipe/hipe_bif1.c
@@ -574,22 +574,6 @@ BIF_RETTYPE hipe_bifs_pause_times_0(BIF_ALIST_0)
 
 /* XXX: these macros have free variables */
 #ifdef BM_TIMERS
-#if USE_PERFCTR
-#define MAKE_TIME(_timer_) {			      \
-    BM_TIMER_T tmp = _timer_##_time;		      \
-    milli = (uint)(tmp - ((int)(tmp / 1000)) * 1000); \
-    tmp /= 1000;				      \
-    sec = (uint)(tmp - ((int)(tmp / 60)) * 60);	      \
-    min = (uint)tmp / 60;			      }
-
-#define MAKE_MICRO_TIME(_timer_) {		      \
-    BM_TIMER_T tmp = _timer_##_time * 1000;	      \
-    micro = (uint)(tmp - ((int)(tmp / 1000)) * 1000); \
-    tmp /= 1000;				      \
-    milli = (uint)(tmp - ((int)(tmp / 1000)) * 1000); \
-    sec = (uint)tmp / 1000;			      }
-
-#else
 #define MAKE_TIME(_timer_) {			      \
     BM_TIMER_T tmp = _timer_##_time / 1000000;	      \
     milli = tmp % 1000;				      \
@@ -604,7 +588,6 @@ BIF_RETTYPE hipe_bifs_pause_times_0(BIF_ALIST_0)
     milli = tmp % 1000;				      \
     sec = tmp / 1000;				      }
 
-#endif
 #else
 #define MAKE_TIME(_timer_)
 #define MAKE_MICRO_TIME(_timer_)
@@ -852,9 +835,6 @@ BIF_RETTYPE hipe_bifs_misc_timer_clear_0(BIF_ALIST_0)
 /*
  * HiPE hrvtime().
  * These implementations are currently available:
- * + On Linux with the perfctr extension we can use the process'
- *   virtualised time-stamp counter. To enable this mode you must
- *   pass `--with-perfctr=/path/to/perfctr' when configuring.
  * + The fallback, which is the same as {X,_} = runtime(statistics).
  */
 
@@ -866,37 +846,6 @@ static double fallback_get_hrvtime(void)
     return (double)ms_user;
 }
 
-#if USE_PERFCTR
-
-#include "hipe_perfctr.h"
-static int hrvtime_started;	/* 0: closed, +1: perfctr, -1: fallback */
-#define hrvtime_is_started()	(hrvtime_started != 0)
-
-static void start_hrvtime(void)
-{
-    if (hipe_perfctr_hrvtime_open() >= 0)
-	hrvtime_started = 1;
-    else
-	hrvtime_started = -1;
-}
-
-static void stop_hrvtime(void)
-{
-    if (hrvtime_started > 0)
-	hipe_perfctr_hrvtime_close();
-    hrvtime_started = 0;
-}
-
-static double get_hrvtime(void)
-{
-    if (hrvtime_started > 0)
-	return hipe_perfctr_hrvtime_get();
-    else
-	return fallback_get_hrvtime();
-}
-
-#else	/* !USE_PERFCTR */
-
 /*
  * Fallback, if nothing better exists.
  * This is the same as {X,_} = statistics(runtime), which uses
@@ -908,8 +857,6 @@ static double get_hrvtime(void)
 #define stop_hrvtime()		do{}while(0)
 #define get_hrvtime()		fallback_get_hrvtime()
 
-#endif	/* !USE_PERFCTR */
-
 BIF_RETTYPE hipe_bifs_get_hrvtime_0(BIF_ALIST_0)
 {
     Eterm *hp;
diff --git a/erts/emulator/hipe/hipe_bif_list.m4 b/erts/emulator/hipe/hipe_bif_list.m4
index 5f92b6bac4..370061bca1 100644
--- a/erts/emulator/hipe/hipe_bif_list.m4
+++ b/erts/emulator/hipe/hipe_bif_list.m4
@@ -250,6 +250,8 @@ gc_bif_interface_0(nbif_check_get_msg, hipe_check_get_msg)
 nocons_nofail_primop_interface_0(nbif_emulate_fpe, hipe_emulate_fpe)
 #endif
 
+noproc_primop_interface_1(nbif_emasculate_binary, hipe_emasculate_binary)
+
 /*
  * SMP-specific stuff
  */
@@ -277,7 +279,10 @@ ifelse($1,list_to_binary_1,hipe_wrapper_list_to_binary_1,
 ifelse($1,iolist_to_binary_1,hipe_wrapper_iolist_to_binary_1,
 ifelse($1,binary_list_to_bin_1,hipe_wrapper_binary_list_to_bin_1,
 ifelse($1,list_to_bitstring_1,hipe_wrapper_list_to_bitstring_1,
-$1)))))))))))')
+ifelse($1,send_2,hipe_wrapper_send_2,
+ifelse($1,send_3,hipe_wrapper_send_3,
+ifelse($1,ebif_bang_2,hipe_wrapper_ebif_bang_2,
+$1))))))))))))))')
 
 define(BIF_LIST,`standard_bif_interface_$3(nbif_$4, CFUN($4))')
 include(TARGET/`erl_bif_list.h')
diff --git a/erts/emulator/hipe/hipe_debug.c b/erts/emulator/hipe/hipe_debug.c
index 32694a8f97..2804d46249 100644
--- a/erts/emulator/hipe/hipe_debug.c
+++ b/erts/emulator/hipe/hipe_debug.c
@@ -172,8 +172,10 @@ void hipe_print_pcb(Process *p)
     printf("P: 0x%0*lx\r\n", 2*(int)sizeof(long), (unsigned long)p);
     printf("-----------------------------------------------\r\n");
     printf("Offset| Name        | Value      | *Value     |\r\n");
+#undef U
 #define U(n,x) \
     printf(" % 4d | %s | 0x%0*lx |            |\r\n", (int)offsetof(Process,x), n, 2*(int)sizeof(long), (unsigned long)p->x)
+#undef P
 #define P(n,x) \
     printf(" % 4d | %s | 0x%0*lx | 0x%0*lx |\r\n", (int)offsetof(Process,x), n, 2*(int)sizeof(long), (unsigned long)p->x, 2*(int)sizeof(long), p->x ? (unsigned long)*(p->x) : -1UL)
 
@@ -211,9 +213,9 @@ void hipe_print_pcb(Process *p)
     U("seq..clock ", seq_trace_clock);
     U("seq..astcnt", seq_trace_lastcnt);
     U("seq..token ", seq_trace_token);
-    U("intial[0]  ", initial[0]);
-    U("intial[1]  ", initial[1]);
-    U("intial[2]  ", initial[2]);
+    U("intial[0]  ", u.initial[0]);
+    U("intial[1]  ", u.initial[1]);
+    U("intial[2]  ", u.initial[2]);
     P("current    ", current);
     P("cp         ", cp);
     P("i          ", i);
@@ -231,7 +233,7 @@ void hipe_print_pcb(Process *p)
     U("nsp        ", hipe.nsp);
     U("nstack     ", hipe.nstack);
     U("nstend     ", hipe.nstend);
-    U("ncallee    ", hipe.ncallee);
+    U("ncallee    ", hipe.u.ncallee);
     hipe_arch_print_pcb(&p->hipe);
 #endif	/* HIPE */
 #undef U
diff --git a/erts/emulator/hipe/hipe_gc.c b/erts/emulator/hipe/hipe_gc.c
index 86c4068072..b10263f6e2 100644
--- a/erts/emulator/hipe/hipe_gc.c
+++ b/erts/emulator/hipe/hipe_gc.c
@@ -22,6 +22,9 @@
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
+
+#define ERL_WANT_GC_INTERNALS__
+
 #include "global.h"
 
 #include "erl_gc.h"
diff --git a/erts/emulator/hipe/hipe_mkliterals.c b/erts/emulator/hipe/hipe_mkliterals.c
index 0e287908b1..49e8d39360 100644
--- a/erts/emulator/hipe/hipe_mkliterals.c
+++ b/erts/emulator/hipe/hipe_mkliterals.c
@@ -498,8 +498,8 @@ static const struct rts_param rts_params[] = {
     { 38, "P_ARG4", 1, offsetof(struct process, def_arg_reg[4]) },
     { 39, "P_ARG5", 1, offsetof(struct process, def_arg_reg[5]) },
     { 40, "P_NSP", 1, offsetof(struct process, hipe.nsp) },
-    { 41, "P_NCALLEE", 1, offsetof(struct process, hipe.ncallee) },
-    { 42, "P_CLOSURE", 1, offsetof(struct process, hipe.closure) },
+    { 41, "P_NCALLEE", 1, offsetof(struct process, hipe.u.ncallee) },
+    { 42, "P_CLOSURE", 1, offsetof(struct process, hipe.u.closure) },
     { 43, "P_NSP_LIMIT", 1, offsetof(struct process, hipe.nstack) },
     { 44, "P_CSP",
 #if defined(__i386__) || defined(__x86_64__)
@@ -524,6 +524,7 @@ static const struct rts_param rts_params[] = {
     },
     { 49, "P_MSG_FIRST", 1, offsetof(struct process, msg.first) },
     { 50, "P_MSG_SAVE", 1, offsetof(struct process, msg.save) },
+    { 51, "P_CALLEE_EXP", 1, offsetof(struct process, hipe.u.callee_exp) },
 };
 
 #define NR_PARAMS	ARRAY_SIZE(rts_params)
@@ -647,8 +648,7 @@ static int do_e(FILE *fp, const char* this_exe)
 	fprintf(fp, "-define(HIPE_SYSTEM_CRC, %u).\n", system_crc);
     }
     else {
-	fprintf(fp, "-define(HIPE_SYSTEM_CRC, hipe_bifs:system_crc(%u)).\n",
-		literals_crc);
+	fprintf(fp, "-define(HIPE_SYSTEM_CRC, hipe_bifs:system_crc()).\n");
     }
     return 0;
 }
diff --git a/erts/emulator/hipe/hipe_mode_switch.c b/erts/emulator/hipe/hipe_mode_switch.c
index 1ae1d17b7f..8c73312d45 100644
--- a/erts/emulator/hipe/hipe_mode_switch.c
+++ b/erts/emulator/hipe/hipe_mode_switch.c
@@ -140,7 +140,6 @@ void hipe_check_pcb(Process *p, const char *file, unsigned line)
 #endif	/* HIPE_DEBUG > 0 */
 
 /* ensure that at least nwords words are available on the native stack */
-static void hipe_check_nstack(Process *p, unsigned nwords);
 
 #if defined(__sparc__)
 #include "hipe_sparc_glue.h"
@@ -159,7 +158,7 @@ static void hipe_check_nstack(Process *p, unsigned nwords);
 Uint hipe_beam_pc_return[1];	/* needed in hipe_debug.c */
 Uint hipe_beam_pc_throw[1];	/* needed in hipe_debug.c */
 Uint hipe_beam_pc_resume[1];	/* needed by hipe_set_timeout() */
-static Eterm hipe_beam_catch_throw;
+Eterm hipe_beam_catch_throw;
 
 void hipe_mode_switch_init(void)
 {
@@ -185,22 +184,6 @@ void hipe_set_call_trap(Uint *bfun, void *nfun, int is_closure)
     bfun[-4] = (Uint)nfun;
 }
 
-void hipe_reserve_beam_trap_frame(Process *p, Eterm reg[], unsigned arity)
-{
-    if (!hipe_bifcall_from_native_is_recursive(p))
-	return;
-
-    /* ensure that at least 2 words are available on the BEAM stack */
-    if ((p->stop - 2) < p->htop) {
-	DPRINTF("calling gc to reserve BEAM stack size");
-	p->fcalls -= erts_garbage_collect(p, 2, reg, arity);
-	ASSERT(!((p->stop - 2) < p->htop));
-    }
-    p->stop -= 2;
-    p->stop[0] = NIL;
-    p->stop[1] = hipe_beam_catch_throw;
-}
-
 static __inline__ void
 hipe_push_beam_trap_frame(Process *p, Eterm reg[], unsigned arity)
 {
@@ -223,15 +206,6 @@ hipe_push_beam_trap_frame(Process *p, Eterm reg[], unsigned arity)
     p->cp = hipe_beam_pc_return;
 }
 
-void hipe_unreserve_beam_trap_frame(Process *p)
-{
-    if (!hipe_bifcall_from_native_is_recursive(p))
-	return;
-
-    ASSERT(p->stop[0] == NIL && p->stop[1] == hipe_beam_catch_throw);
-    p->stop += 2;
-}
-
 static __inline__ void hipe_pop_beam_trap_frame(Process *p)
 {
     ASSERT(p->stop[1] == hipe_beam_catch_throw);
@@ -265,14 +239,14 @@ Process *hipe_mode_switch(Process *p, unsigned cmd, Eterm reg[])
 	  /* BEAM calls a native code function */
 	  unsigned arity = cmd >> 8;
 
-	  /* p->hipe.ncallee set in beam_emu */
+	  /* p->hipe.u.ncallee set in beam_emu */
 	  if (p->cp == hipe_beam_pc_return) {
 	    /* Native called BEAM, which now tailcalls native. */
 	    hipe_pop_beam_trap_frame(p);
 	    result = hipe_tailcall_to_native(p, arity, reg);
 	    break;
 	  }
-	  DPRINTF("calling %#lx/%u", (long)p->hipe.ncallee, arity);
+	  DPRINTF("calling %#lx/%u", (long)p->hipe.u.ncallee, arity);
 	  result = hipe_call_to_native(p, arity, reg);
 	  break;
       }
@@ -290,18 +264,18 @@ Process *hipe_mode_switch(Process *p, unsigned cmd, Eterm reg[])
 	  arity -= funp->num_free;	/* arity == #formals */
 	  reg[arity] = fun;
 	  ++arity;	/* correct for having added the closure */
-	  /* HIPE_ASSERT(p->hipe.ncallee == (void(*)(void))funp->native_address); */
+	  /* HIPE_ASSERT(p->hipe.u.ncallee == (void(*)(void))funp->native_address); */
 
 	  /* just like a normal call from now on */
 
-	  /* p->hipe.ncallee set in beam_emu */
+	  /* p->hipe.u.ncallee set in beam_emu */
 	  if (p->cp == hipe_beam_pc_return) {
 	      /* Native called BEAM, which now tailcalls native. */
 	      hipe_pop_beam_trap_frame(p);
 	      result = hipe_tailcall_to_native(p, arity, reg);
 	      break;
 	  }
-	  DPRINTF("calling %#lx/%u", (long)p->hipe.ncallee, arity);
+	  DPRINTF("calling %#lx/%u", (long)p->hipe.u.ncallee, arity);
 	  result = hipe_call_to_native(p, arity, reg);
 	  break;
       }
@@ -404,13 +378,13 @@ Process *hipe_mode_switch(Process *p, unsigned cmd, Eterm reg[])
 	  if (is_recursive)
 	      hipe_push_beam_trap_frame(p, reg, p->arity);
 	  
-	  result = HIPE_MODE_SWITCH_RES_CALL;
+	  result = HIPE_MODE_SWITCH_RES_CALL_BEAM;
 	  break;
       }
-      case HIPE_MODE_SWITCH_RES_CALL: {
+      case HIPE_MODE_SWITCH_RES_CALL_EXPORTED: {
 	  /* Native code calls or tailcalls BEAM.
 	   *
-	   * p->i is the callee's BEAM code
+	   * p->hipe.u.callee_exp is the callee's export entry
 	   * p->arity is the callee's arity
 	   * p->def_arg_reg[] contains the register parameters
 	   * p->hipe.nsp[] contains the stacked parameters
@@ -430,15 +404,15 @@ Process *hipe_mode_switch(Process *p, unsigned cmd, Eterm reg[])
 	   * F(A1, ..., AN, FV1, ..., FVM, Closure)
 	   *  (Where Ai is argument i and FVj is free variable j)
 	   *
-	   * p->hipe.closure contains the closure
+	   * p->hipe.u.closure contains the closure
 	   * p->def_arg_reg[] contains the register parameters
 	   * p->hipe.nsp[] contains the stacked parameters
 	   */
 	  ErlFunThing *closure;
 	  unsigned num_free, arity, i, is_recursive;
 
-	  HIPE_ASSERT(is_fun(p->hipe.closure));
-	  closure = (ErlFunThing*)fun_val(p->hipe.closure);
+	  HIPE_ASSERT(is_fun(p->hipe.u.closure));
+	  closure = (ErlFunThing*)fun_val(p->hipe.u.closure);
 	  num_free = closure->num_free;
 	  arity = closure->fe->arity;
 
@@ -468,10 +442,10 @@ Process *hipe_mode_switch(Process *p, unsigned cmd, Eterm reg[])
 	      p->i = closure->fe->address;
 
 	      /* Change result code to the faster plain CALL type. */
-	      result = HIPE_MODE_SWITCH_RES_CALL;
+	      result = HIPE_MODE_SWITCH_RES_CALL_BEAM;
 	  }
 	  /* Append the closure as the last parameter. Don't increment arity. */
-	  reg[arity] = p->hipe.closure;
+	  reg[arity] = p->hipe.u.closure;
 
 	  if (is_recursive) {
 	      /* BEAM called native, which now calls BEAM.
@@ -549,7 +523,7 @@ Process *hipe_mode_switch(Process *p, unsigned cmd, Eterm reg[])
 	      }
 	  }
 	  HIPE_CHECK_PCB(p);
-	  result = HIPE_MODE_SWITCH_RES_CALL;
+	  result = HIPE_MODE_SWITCH_RES_CALL_BEAM;
 	  p->def_arg_reg[3] = result;
 	  return p;
       }
@@ -577,7 +551,7 @@ Process *hipe_mode_switch(Process *p, unsigned cmd, Eterm reg[])
 	  address = hipe_get_remote_na(mfa[0], mfa[1], arity);
 	  if (!address)
 		  goto do_apply_fail;
-	  p->hipe.ncallee = (void(*)(void)) address;
+	  p->hipe.u.ncallee = (void(*)(void)) address;
 	  result = hipe_tailcall_to_native(p, arity, reg);
 	  goto do_return_from_native;
       do_apply_fail:
@@ -607,7 +581,6 @@ static unsigned hipe_next_nstack_size(unsigned size)
 }
 
 #if 0 && defined(HIPE_NSTACK_GROWS_UP)
-#define hipe_nstack_avail(p)	((p)->hipe.nstend - (p)->hipe.nsp)
 void hipe_inc_nstack(Process *p)
 {
     Eterm *old_nstack = p->hipe.nstack;
@@ -631,7 +604,6 @@ void hipe_inc_nstack(Process *p)
 #endif
 
 #if defined(HIPE_NSTACK_GROWS_DOWN)
-#define hipe_nstack_avail(p)	((unsigned)((p)->hipe.nsp - (p)->hipe.nstack))
 void hipe_inc_nstack(Process *p)
 {
     unsigned old_size = p->hipe.nstend - p->hipe.nstack;
@@ -663,12 +635,6 @@ void hipe_empty_nstack(Process *p)
     p->hipe.nstend = NULL;
 }
 
-static void hipe_check_nstack(Process *p, unsigned nwords)
-{
-    while (hipe_nstack_avail(p) < nwords)
-	hipe_inc_nstack(p);
-}
-
 void hipe_set_closure_stub(ErlFunEntry *fe, unsigned num_free)
 {
     unsigned arity;
diff --git a/erts/emulator/hipe/hipe_mode_switch.h b/erts/emulator/hipe/hipe_mode_switch.h
index 06721e3c04..b8de12fcbb 100644
--- a/erts/emulator/hipe/hipe_mode_switch.h
+++ b/erts/emulator/hipe/hipe_mode_switch.h
@@ -31,7 +31,7 @@
 
 /* result codes for beam_emu <- hipe_mode_switch() return */
 #define HIPE_MODE_SWITCH_RES_RETURN		4
-#define HIPE_MODE_SWITCH_RES_CALL		5
+#define HIPE_MODE_SWITCH_RES_CALL_EXPORTED	5
 #define HIPE_MODE_SWITCH_RES_THROW		6
 
 /* additional result codes for hipe_mode_switch() <- native return */
@@ -45,6 +45,8 @@
 
 #define HIPE_MODE_SWITCH_RES_APPLY		13 /* mode_switch <- native */
 
+#define HIPE_MODE_SWITCH_RES_CALL_BEAM	        14
+
 #ifndef ASM
 
 #include "error.h"
@@ -59,13 +61,58 @@ void hipe_empty_nstack(Process *p);
 void hipe_set_closure_stub(ErlFunEntry *fe, unsigned num_free);
 Eterm hipe_build_stacktrace(Process *p, struct StackTrace *s);
 
-void hipe_reserve_beam_trap_frame(Process*, Eterm reg[], unsigned arity);
-void hipe_unreserve_beam_trap_frame(Process*);
+ERTS_GLB_INLINE void hipe_reserve_beam_trap_frame(Process*, Eterm reg[], unsigned arity);
+ERTS_GLB_INLINE void hipe_unreserve_beam_trap_frame(Process*);
 
 extern Uint hipe_beam_pc_return[];
 extern Uint hipe_beam_pc_throw[];
 extern Uint hipe_beam_pc_resume[];
 
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+#include "erl_gc.h"
+#include "hipe_stack.h"
+
+#if defined(__sparc__)
+#include "hipe_sparc_glue.h"
+#elif defined(__i386__)
+#include "hipe_x86_glue.h"
+#elif defined(__x86_64__)
+#include "hipe_amd64_glue.h"
+#elif defined(__powerpc__) || defined(__ppc__) || defined(__powerpc64__)
+#include "hipe_ppc_glue.h"
+#elif defined(__arm__)
+#include "hipe_arm_glue.h"
+#endif
+
+extern Eterm hipe_beam_catch_throw;
+
+ERTS_GLB_INLINE void hipe_reserve_beam_trap_frame(Process *p, Eterm reg[], unsigned arity)
+{
+    if (!hipe_bifcall_from_native_is_recursive(p))
+	return;
+
+    /* ensure that at least 2 words are available on the BEAM stack */
+    if ((p->stop - 2) < p->htop) {
+	p->fcalls -= erts_garbage_collect(p, 2, reg, arity);
+	ASSERT(!((p->stop - 2) < p->htop));
+    }
+    p->stop -= 2;
+    p->stop[0] = NIL;
+    p->stop[1] = hipe_beam_catch_throw;
+}
+
+ERTS_GLB_INLINE void hipe_unreserve_beam_trap_frame(Process *p)
+{
+    if (!hipe_bifcall_from_native_is_recursive(p))
+	return;
+
+    ASSERT(p->stop[0] == NIL && p->stop[1] == hipe_beam_catch_throw);
+    p->stop += 2;
+}
+
+#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
+
 #endif	/* ASM */
 
 #endif /* HIPE_MODE_SWITCH_H */
diff --git a/erts/emulator/hipe/hipe_native_bif.c b/erts/emulator/hipe/hipe_native_bif.c
index 7d343dd91e..85d945823e 100644
--- a/erts/emulator/hipe/hipe_native_bif.c
+++ b/erts/emulator/hipe/hipe_native_bif.c
@@ -102,7 +102,8 @@ BIF_RETTYPE hipe_set_timeout(BIF_ALIST_1)
      * p->def_arg_reg[0] and p->i are both defined and used.
      * If a message arrives, BEAM resumes at p->i.
      * If a timeout fires, BEAM resumes at p->def_arg_reg[0].
-     * (See set_timer() and timeout_proc() in erl_process.c.)
+     * (See erts_set_proc_timer() and proc_timeout_common() in
+     * erl_hl_timer.c.)
      *
      * Here we set p->def_arg_reg[0] to hipe_beam_pc_resume.
      * Assuming our caller invokes suspend immediately after
@@ -135,28 +136,21 @@ BIF_RETTYPE hipe_set_timeout(BIF_ALIST_1)
      */
     if (p->flags & (F_INSLPQUEUE | F_TIMO))
 	return NIL;	/* caller had better call nbif_suspend ASAP! */
-    if (is_small(timeout_value) && signed_val(timeout_value) >= 0 &&
-#if defined(ARCH_64)
-	(unsigned_val(timeout_value) >> 32) == 0
-#else
-	1
-#endif
-	) {
-	set_timer(p, unsigned_val(timeout_value));
-    } else if (timeout_value == am_infinity) {
+
+    if (timeout_value == am_infinity) {
 	/* p->flags |= F_TIMO; */	/* XXX: nbif_suspend_msg_timeout */
-#if !defined(ARCH_64)
-    } else if (term_to_Uint(timeout_value, &time_val)) {
-	set_timer(p, time_val);
-#endif
-    } else {
+    }
+    else {
+	int tres = erts_set_proc_timer_term(p, timeout_value);
+	if (tres != 0) { /* Wrong time */
 #ifdef ERTS_SMP
-	if (p->hipe_smp.have_receive_locks) {
-	    p->hipe_smp.have_receive_locks = 0;
-	    erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_MSG_RECEIVE);
-	}
+	    if (p->hipe_smp.have_receive_locks) {
+		p->hipe_smp.have_receive_locks = 0;
+		erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_MSG_RECEIVE);
+	    }
 #endif
-	BIF_ERROR(p, EXC_TIMEOUT_VALUE);
+	    BIF_ERROR(p, EXC_TIMEOUT_VALUE);
+	}
     }
     return NIL;	/* caller had better call nbif_suspend ASAP! */
 }
@@ -170,7 +164,7 @@ void hipe_select_msg(Process *p)
     msgp = PEEK_MESSAGE(p);
     UNLINK_MESSAGE(p, msgp);	/* decrements global 'erts_proc_tot_mem' variable */
     JOIN_MESSAGE(p);
-    CANCEL_TIMER(p);		/* calls erl_cancel_timer() */
+    CANCEL_TIMER(p);		/* calls erts_cancel_proc_timer() */
     free_message(msgp);
 }
 
@@ -330,8 +324,6 @@ char *hipe_bs_allocate(int len)
     Binary *bptr;
 
     bptr = erts_bin_nrml_alloc(len);
-    bptr->flags = 0;
-    bptr->orig_size = len;
     erts_smp_atomic_init_nob(&bptr->refc, 1);
     return bptr->orig_bytes;
 }
@@ -341,7 +333,6 @@ Binary *hipe_bs_reallocate(Binary* oldbptr, int newsize)
     Binary *bptr;
 
     bptr = erts_bin_realloc(oldbptr, newsize);
-    bptr->orig_size = newsize;
     return bptr;
 }
 
diff --git a/erts/emulator/hipe/hipe_native_bif.h b/erts/emulator/hipe/hipe_native_bif.h
index 3f460a5a5c..574e20e2e4 100644
--- a/erts/emulator/hipe/hipe_native_bif.h
+++ b/erts/emulator/hipe/hipe_native_bif.h
@@ -98,6 +98,9 @@ AEXTERN(void,nbif_emulate_fpe,(Process*));
 void hipe_emulate_fpe(Process*);
 #endif
 
+AEXTERN(void,nbif_emasculate_binary,(Eterm));
+void hipe_emasculate_binary(Eterm);
+
 /*
  * Stuff that is different in SMP and non-SMP.
  */
diff --git a/erts/emulator/hipe/hipe_perfctr.c b/erts/emulator/hipe/hipe_perfctr.c
deleted file mode 100644
index 371b3fb097..0000000000
--- a/erts/emulator/hipe/hipe_perfctr.c
+++ /dev/null
@@ -1,229 +0,0 @@
-/*
- * %CopyrightBegin%
- *
- * Copyright Ericsson AB 2004-2011. All Rights Reserved.
- *
- * The contents of this file are subject to the Erlang Public License,
- * Version 1.1, (the "License"); you may not use this file except in
- * compliance with the License. You should have received a copy of the
- * Erlang Public License along with this software. If not, it can be
- * retrieved online at http://www.erlang.org/.
- *
- * Software distributed under the License is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- * the License for the specific language governing rights and limitations
- * under the License.
- *
- * %CopyrightEnd%
- */
-
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-#include "sys.h"
-#include "error.h"
-#include "global.h"
-#include "bif.h"
-#include "big.h"
-#include "erl_binary.h"
-#include "hipe_perfctr.h"
-#include "libperfctr.h"
-
-static struct vperfctr *vperfctr;
-static unsigned int have_rdtsc;
-static double tsc_to_ms;
-static unsigned int tsc_on; /* control calls must set tsc_on if have_rdtsc is true */
-static unsigned int nractrs;
-static unsigned int users;
-#define USER_BIFS	(1<<0)
-#define USER_HRVTIME	(1<<1)
-
-static int hipe_perfctr_open(unsigned int user)
-{
-    struct perfctr_info info;
-
-    if (!vperfctr) {
-	vperfctr = vperfctr_open();
-	if (!vperfctr)
-	    return -1;
-	if (vperfctr_info(vperfctr, &info) >= 0) {
-	    tsc_to_ms = (double)(info.tsc_to_cpu_mult ? : 1) / (double)info.cpu_khz;
-	    have_rdtsc = (info.cpu_features & PERFCTR_FEATURE_RDTSC) ? 1 : 0;
-	}
-	tsc_on = 0;
-	nractrs = 0;
-    }
-    users |= user;
-    return 0;
-}
-
-static void hipe_perfctr_reset(void)
-{
-    struct vperfctr_control control;
-
-    memset(&control, 0, sizeof control);
-    if (have_rdtsc)
-	control.cpu_control.tsc_on = 1;
-    nractrs = 0;
-    if (vperfctr_control(vperfctr, &control) >= 0)
-	tsc_on = 1;
-}
-
-static void hipe_perfctr_close(unsigned int user)
-{
-    if (!vperfctr)
-	return;
-    users &= ~user;
-    switch (users) {
-      case 0:
-	vperfctr_unlink(vperfctr);
-	vperfctr_close(vperfctr);
-	vperfctr = NULL;
-	tsc_on = 0;
-	nractrs = 0;
-	break;
-      case USER_HRVTIME:
-	hipe_perfctr_reset();
-    }
-}
-
-/*
- * Interface for HiPE's hrvtime code.
- */
-
-int hipe_perfctr_hrvtime_open(void)
-{
-    if (hipe_perfctr_open(USER_HRVTIME) < 0)
-	return -1;
-    if (have_rdtsc) {
-	if (!tsc_on)
-	    hipe_perfctr_reset(); /* note: updates tsc_on */
-	if (tsc_on)
-	    return 0;
-    }
-    hipe_perfctr_hrvtime_close();
-    return -1;
-}
-
-void hipe_perfctr_hrvtime_close(void)
-{
-    hipe_perfctr_close(USER_HRVTIME);
-}
-
-double hipe_perfctr_hrvtime_get(void)
-{
-    return (double)vperfctr_read_tsc(vperfctr) * tsc_to_ms;
-}
-
-/*
- * BIF interface for user-programmable performance counters.
- */
-
-BIF_RETTYPE hipe_bifs_vperfctr_open_0(BIF_ALIST_0)
-{
-    if (hipe_perfctr_open(USER_BIFS) < 0)
-	BIF_RET(am_false); /* arity 0 BIFs can't fail :-( */
-    BIF_RET(am_true);
-}
-
-BIF_RETTYPE hipe_bifs_vperfctr_close_0(BIF_ALIST_0)
-{
-    hipe_perfctr_close(USER_BIFS);
-    BIF_RET(NIL);
-}
-
-static Eterm ull_to_integer(unsigned long long x, Process *p)
-{
-    unsigned long long tmpx;
-    unsigned int ds, i;
-    size_t sz;
-    Eterm *hp;
-    ErtsDigit *xp;
-
-    if (x <= (unsigned long long)MAX_SMALL)
-	return make_small(x);
-
-    /* Calculate number of digits. */
-    ds = 0;
-    tmpx = x;
-    do {
-	++ds;
-	tmpx = (tmpx >> (D_EXP / 2)) >> (D_EXP / 2);
-    } while (tmpx != 0);
-
-    sz = BIG_NEED_SIZE(ds);	/* number of words including arity */
-    hp = HAlloc(p, sz);
-    *hp = make_pos_bignum_header(sz-1);
-
-    xp = (ErtsDigit*)(hp+1);
-    i = 0;
-    do {
-	xp[i++] = (ErtsDigit)x;
-	x = (x >> (D_EXP / 2)) >> (D_EXP / 2);
-    } while (i < ds);
-    while (i & (BIG_DIGITS_PER_WORD-1))
-	xp[i++] = 0;
-
-    return make_big(hp);
-}
-
-BIF_RETTYPE hipe_bifs_vperfctr_info_0(BIF_ALIST_0)
-{
-    struct perfctr_info info;
-
-    if (!vperfctr || vperfctr_info(vperfctr, &info) < 0)
-	BIF_RET(am_false); /* arity 0 BIFs can't fail :-( */
-    BIF_RET(new_binary(BIF_P, (void*)&info, sizeof info));
-}
-
-BIF_RETTYPE hipe_bifs_vperfctr_read_tsc_0(BIF_ALIST_0)
-{
-    unsigned long long val;
-
-    if (!vperfctr || !tsc_on)
-	BIF_RET(am_false); /* arity 0 BIFs can't fail :-( */
-    val = vperfctr_read_tsc(vperfctr);
-    BIF_RET(ull_to_integer(val, BIF_P));
-}
-
-BIF_RETTYPE hipe_bifs_vperfctr_read_pmc_1(BIF_ALIST_1)
-{
-    Uint pmc;
-    unsigned long long val;
-
-    if (!vperfctr ||
-	is_not_small(BIF_ARG_1) ||
-	(pmc = unsigned_val(BIF_ARG_1), pmc >= nractrs))
-	BIF_RET(am_false); /* for consistency with the arity 0 BIFs */
-    val = vperfctr_read_pmc(vperfctr, pmc);
-    BIF_RET(ull_to_integer(val, BIF_P));
-}
-
-BIF_RETTYPE hipe_bifs_vperfctr_control_1(BIF_ALIST_1)
-{
-    void *bytes;
-    struct vperfctr_control control;
-    Uint bitoffs;
-    Uint bitsize;
-
-    if (!vperfctr)
-	BIF_ERROR(BIF_P, BADARG);
-    if (is_not_binary(BIF_ARG_1))
-	BIF_ERROR(BIF_P, BADARG);
-    if (binary_size(BIF_ARG_1) != sizeof control)
-	BIF_ERROR(BIF_P, BADARG);
-    ERTS_GET_BINARY_BYTES(BIF_ARG_1, bytes, bitoffs, bitsize);
-    ASSERT(bitoffs == 0);
-    ASSERT(bitsize == 0);
-    memcpy(&control, bytes, sizeof control);
-    if (have_rdtsc)
-	control.cpu_control.tsc_on = 1;
-    if (vperfctr_control(vperfctr, &control) < 0) {
-	hipe_perfctr_reset();
-	BIF_ERROR(BIF_P, BADARG);
-    }
-    tsc_on = control.cpu_control.tsc_on;
-    nractrs = control.cpu_control.nractrs;
-    BIF_RET(NIL);
-}
diff --git a/erts/emulator/hipe/hipe_perfctr.tab b/erts/emulator/hipe/hipe_perfctr.tab
deleted file mode 100644
index eaecea4651..0000000000
--- a/erts/emulator/hipe/hipe_perfctr.tab
+++ /dev/null
@@ -1,25 +0,0 @@
-#
-# %CopyrightBegin%
-#
-# Copyright Ericsson AB 2004-2011. All Rights Reserved.
-#
-# The contents of this file are subject to the Erlang Public License,
-# Version 1.1, (the "License"); you may not use this file except in
-# compliance with the License. You should have received a copy of the
-# Erlang Public License along with this software. If not, it can be
-# retrieved online at http://www.erlang.org/.
-#
-# Software distributed under the License is distributed on an "AS IS"
-# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-# the License for the specific language governing rights and limitations
-# under the License.
-#
-# %CopyrightEnd%
-#
-
-bif hipe_bifs:vperfctr_open/0
-bif hipe_bifs:vperfctr_close/0
-bif hipe_bifs:vperfctr_info/0
-bif hipe_bifs:vperfctr_read_tsc/0
-bif hipe_bifs:vperfctr_read_pmc/1
-bif hipe_bifs:vperfctr_control/1
diff --git a/erts/emulator/hipe/hipe_ppc.c b/erts/emulator/hipe/hipe_ppc.c
index 2d8fd61e1e..1eaa9f6855 100644
--- a/erts/emulator/hipe/hipe_ppc.c
+++ b/erts/emulator/hipe/hipe_ppc.c
@@ -285,7 +285,7 @@ int hipe_patch_insn(void *address, Uint64 value, Eterm type)
     }
 }
 
-void *hipe_make_native_stub(void *beamAddress, unsigned int beamArity)
+void *hipe_make_native_stub(void *callee_exp, unsigned int beamArity)
 {
     unsigned int *code;
 
@@ -293,17 +293,19 @@ void *hipe_make_native_stub(void *beamAddress, unsigned int beamArity)
 	abort();
 
     code = alloc_stub(7);
+    if (!code)
+	return NULL;
 
-    /* addis r12,0,beamAddress@highest */
-    code[0] = 0x3d800000 | (((unsigned long)beamAddress >> 48) & 0xffff);
-    /* ori r12,r12,beamAddress@higher */
-    code[1] = 0x618c0000 | (((unsigned long)beamAddress >> 32) & 0xffff);
+    /* addis r12,0,callee_exp@highest */
+    code[0] = 0x3d800000 | (((unsigned long)callee_exp >> 48) & 0xffff);
+    /* ori r12,r12,callee_exp@higher */
+    code[1] = 0x618c0000 | (((unsigned long)callee_exp >> 32) & 0xffff);
     /* sldi r12,r12,32 (rldicr r12,r12,32,31) */
     code[2] = 0x798c07c6;
-    /* oris r12,r12,beamAddress@h */
-    code[3] = 0x658c0000 | (((unsigned long)beamAddress >> 16) & 0xffff);
-    /* ori r12,r12,beamAddress@l */
-    code[4] = 0x618c0000 | ((unsigned long)beamAddress & 0xffff);
+    /* oris r12,r12,callee_exp@h */
+    code[3] = 0x658c0000 | (((unsigned long)callee_exp >> 16) & 0xffff);
+    /* ori r12,r12,callee_exp@l */
+    code[4] = 0x618c0000 | ((unsigned long)callee_exp & 0xffff);
     /* addi r0,0,beamArity */
     code[5] = 0x38000000 | (beamArity & 0x7FFF);
     /* ba nbif_callemu */
@@ -355,18 +357,16 @@ int hipe_patch_insn(void *address, Uint32 value, Eterm type)
     return 0;
 }
 
-/* called from hipe_bif0.c:hipe_bifs_make_native_stub_2()
-   and hipe_bif0.c:hipe_make_stub() */
-void *hipe_make_native_stub(void *beamAddress, unsigned int beamArity)
+void *hipe_make_native_stub(void *callee_exp, unsigned int beamArity)
 {
     unsigned int *code;
 
     /*
      * Native code calls BEAM via a stub looking as follows:
      *
-     * addi r12,0,beamAddress@l
+     * addi r12,0,callee_exp@l
      * addi r0,0,beamArity
-     * addis r12,r12,beamAddress@ha
+     * addis r12,r12,callee_exp@ha
      * ba nbif_callemu
      *
      * I'm using r0 and r12 since the standard SVR4 ABI allows
@@ -383,13 +383,15 @@ void *hipe_make_native_stub(void *beamAddress, unsigned int beamArity)
 	abort();
 
     code = alloc_stub(4);
+    if (!code)
+	return NULL;
 
-    /* addi r12,0,beamAddress@l */
-    code[0] = 0x39800000 | ((unsigned long)beamAddress & 0xFFFF);
+    /* addi r12,0,callee_exp@l */
+    code[0] = 0x39800000 | ((unsigned long)callee_exp & 0xFFFF);
     /* addi r0,0,beamArity */
     code[1] = 0x38000000 | (beamArity & 0x7FFF);
-    /* addis r12,r12,beamAddress@ha */
-    code[2] = 0x3D8C0000 | at_ha((unsigned long)beamAddress);
+    /* addis r12,r12,callee_exp@ha */
+    code[2] = 0x3D8C0000 | at_ha((unsigned long)callee_exp);
     /* ba nbif_callemu */
     code[3] = 0x48000002 | (unsigned long)&nbif_callemu;
 
diff --git a/erts/emulator/hipe/hipe_ppc.h b/erts/emulator/hipe/hipe_ppc.h
index 66000c1846..e9d3e6564b 100644
--- a/erts/emulator/hipe/hipe_ppc.h
+++ b/erts/emulator/hipe/hipe_ppc.h
@@ -64,10 +64,6 @@ AEXTERN(void,hipe_ppc_inc_stack,(void));
 extern void hipe_ppc_inc_stack(void); /* we don't have the AEXTERN() fallback :-( */
 #endif
 
-/* for hipe_bifs_enter_code_2 */
-extern void *hipe_alloc_code(Uint nrbytes, Eterm callees, Eterm *trampolines, Process *p);
-#define HIPE_ALLOC_CODE(n,c,t,p) hipe_alloc_code((n),(c),(t),(p))
-
 #if !defined(__powerpc64__)
 extern const unsigned int fconv_constant[];
 #endif
diff --git a/erts/emulator/hipe/hipe_ppc_asm.m4 b/erts/emulator/hipe/hipe_ppc_asm.m4
index 343402f9f0..e5a56de687 100644
--- a/erts/emulator/hipe/hipe_ppc_asm.m4
+++ b/erts/emulator/hipe/hipe_ppc_asm.m4
@@ -23,6 +23,22 @@ changecom(`/*', `*/')dnl
 #define HIPE_PPC_ASM_H'
 
 /*
+ * Tunables.
+ */
+define(LEAF_WORDS,16)dnl number of stack words for leaf functions
+define(NR_ARG_REGS,4)dnl admissible values are 0 to 6, inclusive
+
+`#define PPC_LEAF_WORDS	'LEAF_WORDS
+`#define PPC_NR_ARG_REGS	'NR_ARG_REGS
+`#define NR_ARG_REGS	'NR_ARG_REGS
+
+
+`#ifdef ASM'
+/*
+ * Only assembler stuff from here on (when included from *.S)
+ */
+
+/*
  * Handle 32 vs 64-bit.
  */
 ifelse(ARCH,ppc64,`
@@ -53,13 +69,6 @@ define(WSIZE,4)dnl
 `#define STORE	'STORE
 `#define CMPI	'CMPI
 
-/*
- * Tunables.
- */
-define(LEAF_WORDS,16)dnl number of stack words for leaf functions
-define(NR_ARG_REGS,4)dnl admissible values are 0 to 6, inclusive
-
-`#define PPC_LEAF_WORDS	'LEAF_WORDS
 
 /*
  * Workarounds for Darwin.
@@ -193,8 +202,6 @@ NAME:						\
 /*
  * Argument (parameter) registers.
  */
-`#define PPC_NR_ARG_REGS	'NR_ARG_REGS
-`#define NR_ARG_REGS	'NR_ARG_REGS
 
 define(defarg,`define(ARG$1,`$2')dnl
 #`define ARG'$1	$2'
@@ -273,6 +280,10 @@ define(NBIF_ARG,`ifelse(eval($3 >= NR_ARG_REGS),0,`NBIF_REG_ARG($1,$3)',`NBIF_ST
 `/* #define NBIF_ARG_3_0	'NBIF_ARG(r3,3,0)` */'
 `/* #define NBIF_ARG_3_1	'NBIF_ARG(r3,3,1)` */'
 `/* #define NBIF_ARG_3_2	'NBIF_ARG(r3,3,2)` */'
+`/* #define NBIF_ARG_4_0	'NBIF_ARG(r3,4,0)` */'
+`/* #define NBIF_ARG_4_1	'NBIF_ARG(r3,4,1)` */'
+`/* #define NBIF_ARG_4_2	'NBIF_ARG(r3,4,2)` */'
+`/* #define NBIF_ARG_4_3	'NBIF_ARG(r3,4,3)` */'
 `/* #define NBIF_ARG_5_0	'NBIF_ARG(r3,5,0)` */'
 `/* #define NBIF_ARG_5_1	'NBIF_ARG(r3,5,1)` */'
 `/* #define NBIF_ARG_5_2	'NBIF_ARG(r3,5,2)` */'
@@ -294,6 +305,7 @@ define(NBIF_RET,`NBIF_RET_N(eval(RET_POP($1)))')dnl
 `/* #define NBIF_RET_1	'NBIF_RET(1)` */'
 `/* #define NBIF_RET_2	'NBIF_RET(2)` */'
 `/* #define NBIF_RET_3	'NBIF_RET(3)` */'
+`/* #define NBIF_RET_4	'NBIF_RET(4)` */'
 `/* #define NBIF_RET_5	'NBIF_RET(5)` */'
 
 dnl
@@ -309,4 +321,6 @@ define(QUICK_CALL_RET,`NBIF_POP_N(eval(RET_POP($2)))b $1')dnl
 `/* #define QUICK_CALL_RET_F_3 'QUICK_CALL_RET(F,3)` */'
 `/* #define QUICK_CALL_RET_F_5 'QUICK_CALL_RET(F,5)` */'
 
+`#endif /* ASM */'
+
 `#endif /* HIPE_PPC_ASM_H */'
diff --git a/erts/emulator/hipe/hipe_ppc_bifs.m4 b/erts/emulator/hipe/hipe_ppc_bifs.m4
index 7cc2b5c7b6..b173b896b8 100644
--- a/erts/emulator/hipe/hipe_ppc_bifs.m4
+++ b/erts/emulator/hipe/hipe_ppc_bifs.m4
@@ -19,6 +19,7 @@ changecom(`/*', `*/')dnl
  */
 
 
+#`define ASM'
 include(`hipe/hipe_ppc_asm.m4')
 #`include' "config.h"
 #`include' "hipe_literals.h"
@@ -45,9 +46,10 @@ define(HANDLE_GOT_MBUF,`
  * standard_bif_interface_1(nbif_name, cbif_name)
  * standard_bif_interface_2(nbif_name, cbif_name)
  * standard_bif_interface_3(nbif_name, cbif_name)
+ * standard_bif_interface_4(nbif_name, cbif_name)
  * standard_bif_interface_0(nbif_name, cbif_name)
  *
- * Generate native interface for a BIF with 0-3 parameters and
+ * Generate native interface for a BIF with 0-4 parameters and
  * standard failure mode.
  */
 define(standard_bif_interface_1,
@@ -143,6 +145,41 @@ ASYM($1):
 	TYPE_FUNCTION(ASYM($1))
 #endif')
 
+define(standard_bif_interface_4,
+`
+#ifndef HAVE_$1
+#`define' HAVE_$1
+	GLOBAL(ASYM($1))
+ASYM($1):
+	/* Set up C argument registers. */
+	mr	r3, P
+	NBIF_ARG(r4,4,0)
+	NBIF_ARG(r5,4,1)
+	NBIF_ARG(r6,4,2)
+	NBIF_ARG(r7,4,3)
+
+	/* Save caller-save registers and call the C function. */
+	SAVE_CONTEXT_BIF
+	STORE	r4, P_ARG0(r3)		/* Store BIF__ARGS in def_arg_reg[] */
+	STORE	r5, P_ARG1(r3)
+	STORE	r6, P_ARG2(r3)
+	STORE	r7, P_ARG3(r3)
+	addi	r4, r3, P_ARG0
+	CALL_BIF($2)
+	TEST_GOT_MBUF
+
+	/* Restore registers. Check for exception. */
+	CMPI	r3, THE_NON_VALUE
+	RESTORE_CONTEXT_BIF
+	beq-	1f
+	NBIF_RET(4)
+1:	/* workaround for bc:s small offset operand */
+	b	CSYM(nbif_4_simple_exception)
+	HANDLE_GOT_MBUF(4)
+	SET_SIZE(ASYM($1))
+	TYPE_FUNCTION(ASYM($1))
+#endif')
+
 define(standard_bif_interface_0,
 `
 #ifndef HAVE_$1
diff --git a/erts/emulator/hipe/hipe_ppc_glue.S b/erts/emulator/hipe/hipe_ppc_glue.S
index 6f0217c738..109289116b 100644
--- a/erts/emulator/hipe/hipe_ppc_glue.S
+++ b/erts/emulator/hipe/hipe_ppc_glue.S
@@ -17,10 +17,9 @@
  * %CopyrightEnd%
  */
 
-
+#define ASM
 #include "hipe_ppc_asm.h"
 #include "hipe_literals.h"
-#define ASM
 #include "hipe_mode_switch.h"
 
 	.text
@@ -296,7 +295,7 @@ CSYM(hipe_ppc_throw_to_native):
  * which should look as follows:
  *
  * stub for f/N:
- *	<set r12 to f's BEAM code address>
+ *	<set r12 to f's export entry address>
  *	<set r0 to N>
  *	b nbif_callemu
  *
@@ -312,10 +311,10 @@ CSYM(hipe_ppc_throw_to_native):
  */
 	GLOBAL(ASYM(nbif_callemu))
 ASYM(nbif_callemu):
-	STORE	r12, P_BEAM_IP(P)
+	STORE	r12, P_CALLEE_EXP(P)
 	STORE	r0, P_ARITY(P)
 	STORE_ARG_REGS
-	li	r3, HIPE_MODE_SWITCH_RES_CALL
+	li	r3, HIPE_MODE_SWITCH_RES_CALL_EXPORTED
 	b	.suspend_exit
 
 /*
@@ -463,10 +462,12 @@ ASYM(nbif_fail):
 	OPD(nbif_1_gc_after_bif)
 	OPD(nbif_2_gc_after_bif)
 	OPD(nbif_3_gc_after_bif)
+	OPD(nbif_4_gc_after_bif)
 	GLOBAL(CSYM(nbif_0_gc_after_bif))
 	GLOBAL(CSYM(nbif_1_gc_after_bif))
 	GLOBAL(CSYM(nbif_2_gc_after_bif))
 	GLOBAL(CSYM(nbif_3_gc_after_bif))
+	GLOBAL(CSYM(nbif_4_gc_after_bif))
 CSYM(nbif_0_gc_after_bif):
 	li	r4, 0
 	b	.gc_after_bif
@@ -478,6 +479,9 @@ CSYM(nbif_2_gc_after_bif):
 	b	.gc_after_bif
 CSYM(nbif_3_gc_after_bif):
 	li	r4, 3
+	b	.gc_after_bif
+CSYM(nbif_4_gc_after_bif):
+	li	r4, 4
 	/*FALLTHROUGH*/
 .gc_after_bif:
 	stw	r4, P_NARITY(P)		/* Note: narity is a 32-bit field */
@@ -506,20 +510,29 @@ CSYM(nbif_3_gc_after_bif):
 CSYM(nbif_0_simple_exception):
 	li	r4, 0
 	b	.nbif_simple_exception
+
 	OPD(nbif_1_simple_exception)
 	GLOBAL(CSYM(nbif_1_simple_exception))
 CSYM(nbif_1_simple_exception):
 	li	r4, 1
 	b	.nbif_simple_exception
+
 	OPD(nbif_2_simple_exception)
 	GLOBAL(CSYM(nbif_2_simple_exception))
 CSYM(nbif_2_simple_exception):
 	li	r4, 2
 	b	.nbif_simple_exception
+
 	OPD(nbif_3_simple_exception)
 	GLOBAL(CSYM(nbif_3_simple_exception))
 CSYM(nbif_3_simple_exception):
 	li	r4, 3
+	b	.nbif_simple_exception
+
+	OPD(nbif_4_simple_exception)
+	GLOBAL(CSYM(nbif_4_simple_exception))
+CSYM(nbif_4_simple_exception):
+	li	r4, 4
 	/*FALLTHROUGH*/
 .nbif_simple_exception:
 	LOAD	r3, P_FREASON(P)
diff --git a/erts/emulator/hipe/hipe_primops.h b/erts/emulator/hipe/hipe_primops.h
index 52b4681cfe..236f6d0a29 100644
--- a/erts/emulator/hipe/hipe_primops.h
+++ b/erts/emulator/hipe/hipe_primops.h
@@ -80,6 +80,7 @@ PRIMOP_LIST(am_fclearerror_error, &nbif_fclearerror_error)
 #ifdef NO_FPE_SIGNALS
 PRIMOP_LIST(am_emulate_fpe, &nbif_emulate_fpe)
 #endif
+PRIMOP_LIST(am_emasculate_binary, &nbif_emasculate_binary)
 PRIMOP_LIST(am_debug_native_called, &nbif_hipe_bifs_debug_native_called)
 
 #if defined(__sparc__)
diff --git a/erts/emulator/hipe/hipe_process.h b/erts/emulator/hipe/hipe_process.h
index 4ee99d78a2..86655ad42c 100644
--- a/erts/emulator/hipe/hipe_process.h
+++ b/erts/emulator/hipe/hipe_process.h
@@ -23,14 +23,17 @@
 #define HIPE_PROCESS_H
 
 #include "erl_alloc.h"
+#include "export.h"
 
 struct hipe_process_state {
     Eterm *nsp;			/* Native stack pointer. */
     Eterm *nstack;		/* Native stack block start. */
     Eterm *nstend;		/* Native stack block end (start+size). */
-    /* XXX: ncallee and closure could share space in a union */
-    void (*ncallee)(void);	/* Native code callee (label) to invoke. */
-    Eterm closure;		/* Used to pass a closure from native code. */
+    union {
+	void (*ncallee)(void);	/* Native code callee (label) to invoke. */
+	Eterm closure;		/* Used to pass a closure from native code. */
+	Export* callee_exp;     /* Used to pass export entry from native code */
+    }u;
     Eterm *nstgraylim;		/* Gray/white stack boundary. */
     Eterm *nstblacklim;		/* Black/gray stack boundary. Must exist if
 				   graylim exists. Ignored if no graylim. */
diff --git a/erts/emulator/hipe/hipe_risc_stack.c b/erts/emulator/hipe/hipe_risc_stack.c
index 1183856c7e..bea3a0fecd 100644
--- a/erts/emulator/hipe/hipe_risc_stack.c
+++ b/erts/emulator/hipe/hipe_risc_stack.c
@@ -226,7 +226,7 @@ void (*hipe_handle_stack_trap(Process *p))(void)
  * The native stack MUST contain a stack frame as it appears on
  * entry to a function (actuals, caller's frame, caller's return address).
  * p->hipe.narity MUST contain the arity (number of actuals).
- * On exit, p->hipe.ncallee is set to the handler's PC and p->hipe.nsp
+ * On exit, p->hipe.u.ncallee is set to the handler's PC and p->hipe.nsp
  * is set to its SP (low address of its stack frame).
  */
 void hipe_find_handler(Process *p)
@@ -254,7 +254,7 @@ void hipe_find_handler(Process *p)
 	if ((exnra = sdesc_exnra(sdesc)) != 0 &&
 	    (p->catches >= 0 ||
 	     exnra == (unsigned long)&nbif_fail)) {
-	    p->hipe.ncallee = (void(*)(void)) exnra;
+	    p->hipe.u.ncallee = (void(*)(void)) exnra;
 	    p->hipe.nsp = nsp;
 	    p->hipe.narity = 0;
 	    /* update the gray/white boundary if we threw past it */
diff --git a/erts/emulator/hipe/hipe_sparc.c b/erts/emulator/hipe/hipe_sparc.c
index 49d4da7bab..fea3b623a9 100644
--- a/erts/emulator/hipe/hipe_sparc.c
+++ b/erts/emulator/hipe/hipe_sparc.c
@@ -130,7 +130,7 @@ static void atexit_alloc_code_stats(void)
 #define ALLOC_CODE_STATS(X)	do{}while(0)
 #endif
 
-static void morecore(unsigned int alloc_bytes)
+static int morecore(unsigned int alloc_bytes)
 {
     unsigned int map_bytes;
     char *map_hint, *map_start;
@@ -158,10 +158,9 @@ static void morecore(unsigned int alloc_bytes)
 #endif
 		     ,
 		     -1, 0);
-    if (map_start == MAP_FAILED) {
-	perror("mmap");
-	abort();
-    }
+    if (map_start == MAP_FAILED)
+	return -1;
+
     ALLOC_CODE_STATS(total_mapped += map_bytes);
 
     /* Merge adjacent mappings, so the trailing portion of the previous
@@ -177,6 +176,8 @@ static void morecore(unsigned int alloc_bytes)
     }
 
     ALLOC_CODE_STATS(atexit_alloc_code_stats());
+
+    return 0;
 }
 
 static void *alloc_code(unsigned int alloc_bytes)
@@ -186,8 +187,8 @@ static void *alloc_code(unsigned int alloc_bytes)
     /* Align function entries. */
     alloc_bytes = (alloc_bytes + 3) & ~3;
 
-    if (code_bytes < alloc_bytes)
-	morecore(alloc_bytes);
+    if (code_bytes < alloc_bytes && morecore(alloc_bytes) != 0)
+	return NULL;
     ALLOC_CODE_STATS(++nr_allocs);
     ALLOC_CODE_STATS(total_alloc += alloc_bytes);
     res = code_next;
@@ -204,22 +205,22 @@ void *hipe_alloc_code(Uint nrbytes, Eterm callees, Eterm *trampolines, Process *
     return alloc_code(nrbytes);
 }
 
-/* called from hipe_bif0.c:hipe_bifs_make_native_stub_2()
-   and hipe_bif0.c:hipe_make_stub() */
-void *hipe_make_native_stub(void *beamAddress, unsigned int beamArity)
+void *hipe_make_native_stub(void *callee_exp, unsigned int beamArity)
 {
     unsigned int *code;
     unsigned int callEmuOffset;
     int i;
 
     code = alloc_code(5*sizeof(int));
+    if (!code)
+	return NULL;
 
     /* sethi %hi(Address), %i4 */
-    code[0] = 0x39000000 | (((unsigned int)beamAddress >> 10) & 0x3FFFFF);
+    code[0] = 0x39000000 | (((unsigned int)callee_exp >> 10) & 0x3FFFFF);
     /* or %g0, %o7, %i3 ! mov %o7, %i3 */
     code[1] = 0xB610000F;
     /* or %i4, %lo(Address), %i4 */
-    code[2] = 0xB8172000 | ((unsigned int)beamAddress & 0x3FF);
+    code[2] = 0xB8172000 | ((unsigned int)callee_exp & 0x3FF);
     /* call callemu */
     callEmuOffset = (char*)nbif_callemu - (char*)&code[3];
     code[3] = (1 << 30) | ((callEmuOffset >> 2) & 0x3FFFFFFF);
diff --git a/erts/emulator/hipe/hipe_sparc.h b/erts/emulator/hipe/hipe_sparc.h
index 1134b86004..2d92ca3ca8 100644
--- a/erts/emulator/hipe/hipe_sparc.h
+++ b/erts/emulator/hipe/hipe_sparc.h
@@ -47,8 +47,4 @@ static __inline__ int hipe_word32_address_ok(void *address)
 
 extern void hipe_sparc_inc_stack(void);
 
-/* for hipe_bifs_enter_code_2 */
-extern void *hipe_alloc_code(Uint nrbytes, Eterm callees, Eterm *trampolines, Process *p);
-#define HIPE_ALLOC_CODE(n,c,t,p) hipe_alloc_code((n),(c),(t),(p))
-
 #endif /* HIPE_SPARC_H */
diff --git a/erts/emulator/hipe/hipe_sparc_asm.m4 b/erts/emulator/hipe/hipe_sparc_asm.m4
index 227d10ed80..8020104e40 100644
--- a/erts/emulator/hipe/hipe_sparc_asm.m4
+++ b/erts/emulator/hipe/hipe_sparc_asm.m4
@@ -29,6 +29,14 @@ define(LEAF_WORDS,16)dnl number of stack words for leaf functions
 define(NR_ARG_REGS,4)dnl admissible values are 0 to 6, inclusive
 
 `#define SPARC_LEAF_WORDS	'LEAF_WORDS
+`#define SPARC_NR_ARG_REGS	'NR_ARG_REGS
+`#define NR_ARG_REGS	'NR_ARG_REGS
+
+
+`#ifdef ASM'
+/*
+ * Only assembler stuff from here on (when included from *.S)
+ */
 
 /*
  * Reserved registers.
@@ -80,9 +88,6 @@ define(NR_ARG_REGS,4)dnl admissible values are 0 to 6, inclusive
 /*
  * Argument (parameter) registers.
  */
-`#define SPARC_NR_ARG_REGS	'NR_ARG_REGS
-`#define NR_ARG_REGS	'NR_ARG_REGS
-
 define(defarg,`define(ARG$1,`$2')dnl
 #`define ARG'$1	$2'
 )dnl
@@ -171,6 +176,10 @@ define(NBIF_ARG,`ifelse(eval($3 >= NR_ARG_REGS),0,`NBIF_REG_ARG($1,$3)',`NBIF_ST
 `/* #define NBIF_ARG_3_0	'NBIF_ARG(r1,3,0)` */'
 `/* #define NBIF_ARG_3_1	'NBIF_ARG(r2,3,1)` */'
 `/* #define NBIF_ARG_3_2	'NBIF_ARG(r3,3,2)` */'
+`/* #define NBIF_ARG_4_0	'NBIF_ARG(r1,4,0)` */'
+`/* #define NBIF_ARG_4_1	'NBIF_ARG(r2,4,1)` */'
+`/* #define NBIF_ARG_4_2	'NBIF_ARG(r3,4,2)` */'
+`/* #define NBIF_ARG_4_3	'NBIF_ARG(r3,4,3)` */'
 `/* #define NBIF_ARG_5_0	'NBIF_ARG(r1,5,0)` */'
 `/* #define NBIF_ARG_5_1	'NBIF_ARG(r2,5,1)` */'
 `/* #define NBIF_ARG_5_2	'NBIF_ARG(r3,5,2)` */'
@@ -195,6 +204,7 @@ define(NBIF_RET,`NBIF_RET_N(eval(RET_POP($1)))')dnl
 `/* #define NBIF_RET_1	'NBIF_RET(1)` */'
 `/* #define NBIF_RET_2	'NBIF_RET(2)` */'
 `/* #define NBIF_RET_3	'NBIF_RET(3)` */'
+`/* #define NBIF_RET_4	'NBIF_RET(4)` */'
 `/* #define NBIF_RET_5	'NBIF_RET(5)` */'
 
 dnl
@@ -210,4 +220,6 @@ define(QUICK_CALL_RET,`ba $1; NBIF_POP_N(eval(RET_POP($2)))')dnl
 `/* #define QUICK_CALL_RET_F_3 'QUICK_CALL_RET(F,3)` */'
 `/* #define QUICK_CALL_RET_F_5 'QUICK_CALL_RET(F,5)` */'
 
+`#endif /* ASM */'
+
 `#endif /* HIPE_SPARC_ASM_H */'
diff --git a/erts/emulator/hipe/hipe_sparc_bifs.m4 b/erts/emulator/hipe/hipe_sparc_bifs.m4
index ca5af45d58..1d0ff8c16e 100644
--- a/erts/emulator/hipe/hipe_sparc_bifs.m4
+++ b/erts/emulator/hipe/hipe_sparc_bifs.m4
@@ -19,6 +19,7 @@ changecom(`/*', `*/')dnl
  */
 
 
+#`define ASM'
 include(`hipe/hipe_sparc_asm.m4')
 #`include' "config.h"
 #`include' "hipe_literals.h"
@@ -53,9 +54,10 @@ define(HANDLE_GOT_MBUF,`
  * standard_bif_interface_1(nbif_name, cbif_name)
  * standard_bif_interface_2(nbif_name, cbif_name)
  * standard_bif_interface_3(nbif_name, cbif_name)
+ * standard_bif_interface_4(nbif_name, cbif_name)
  * standard_bif_interface_0(nbif_name, cbif_name)
  *
- * Generate native interface for a BIF with 0-3 parameters and
+ * Generate native interface for a BIF with 0-4 parameters and
  * standard failure mode.
  */
 define(standard_bif_interface_1,
@@ -145,6 +147,39 @@ $1:
 	.type	$1, #function
 #endif')
 
+define(standard_bif_interface_4,
+`
+#ifndef HAVE_$1
+#`define' HAVE_$1
+	.global $1
+$1:
+	/* Set up C argument registers. */
+	mov	P, %o0
+	NBIF_ARG(%o1,4,0)
+	NBIF_ARG(%o2,4,1)
+	NBIF_ARG(%o3,4,2)
+	NBIF_ARG(%o4,4,3)
+
+	/* Save caller-save registers and call the C function. */
+	SAVE_CONTEXT_BIF
+	st 	%o1, [%o0+P_ARG0]	! Store BIF__ARGS in def_arg_reg
+	st 	%o2, [%o0+P_ARG1]
+	st 	%o3, [%o0+P_ARG2]
+	st 	%o4, [%o0+P_ARG3]
+	add	%o0, P_ARG0, %o1
+	CALL_BIF($2)
+	nop
+	TEST_GOT_MBUF
+
+	/* Restore registers. Check for exception. */
+	TEST_GOT_EXN(4)
+	RESTORE_CONTEXT_BIF
+	NBIF_RET(4)
+	HANDLE_GOT_MBUF(4)
+	.size	$1, .-$1
+	.type	$1, #function
+#endif')
+
 define(standard_bif_interface_0,
 `
 #ifndef HAVE_$1
diff --git a/erts/emulator/hipe/hipe_sparc_glue.S b/erts/emulator/hipe/hipe_sparc_glue.S
index 44bdf1bc7e..094a87fd58 100644
--- a/erts/emulator/hipe/hipe_sparc_glue.S
+++ b/erts/emulator/hipe/hipe_sparc_glue.S
@@ -18,10 +18,9 @@
  * %CopyrightEnd%
  */
 
-
+#define ASM
 #include "hipe_sparc_asm.h"
 #include "hipe_literals.h"
-#define ASM
 #include "hipe_mode_switch.h"
 
 	.section ".text"
@@ -155,9 +154,9 @@ hipe_sparc_throw_to_native:
  * which should look as follows:
  *
  * stub for f/N:
- *	sethi %hi(f's BEAM code address), TEMP_ARG0
+ *	sethi %hi(f's export entry address), TEMP_ARG0
  *	mov RA, TEMP_RA		! because the call below clobbers RA (%o7)
- *	or TEMP_ARG0, %lo(f's BEAM code address), TEMP_ARG0
+ *	or TEMP_ARG0, %lo(f's export entry address), TEMP_ARG0
  *	call nbif_callemu	! clobbers RA!
  *	mov N, TEMP_ARG1	! delay slot: TEMP_ARG1 := ARITY
  *
@@ -165,12 +164,12 @@ hipe_sparc_throw_to_native:
  */
 	.global nbif_callemu
 nbif_callemu:
-	st	TEMP_ARG0, [P+P_BEAM_IP]
+	st	TEMP_ARG0, [P+P_CALLEE_EXP]
 	st	TEMP_ARG1, [P+P_ARITY]
 	st	TEMP_RA, [P+P_NRA]
 	STORE_ARG_REGS
 	ba	.flush_exit
-	mov	HIPE_MODE_SWITCH_RES_CALL, %o0
+	mov	HIPE_MODE_SWITCH_RES_CALL_EXPORTED, %o0
 
 /*
  * nbif_apply
@@ -317,6 +316,7 @@ nbif_fail:
 	.global	nbif_1_gc_after_bif
 	.global	nbif_2_gc_after_bif
 	.global	nbif_3_gc_after_bif
+	.global nbif_4_gc_after_bif
 nbif_0_gc_after_bif:
 	ba	.gc_after_bif
 	mov	0, %o1		/* delay slot */
@@ -327,7 +327,10 @@ nbif_2_gc_after_bif:
 	ba	.gc_after_bif
 	mov	2, %o1		/* delay slot */
 nbif_3_gc_after_bif:
-	mov	3, %o1
+	ba	.gc_after_bif
+	mov	3, %o1		/* delay slot */
+nbif_4_gc_after_bif:
+	mov	4, %o1
 	/*FALLTHROUGH*/
 .gc_after_bif:
 	st	%o1, [P+P_NARITY]
@@ -365,7 +368,11 @@ nbif_2_simple_exception:
 	mov	2, %o1		/* delay slot */
 	.global	nbif_3_simple_exception
 nbif_3_simple_exception:
-	mov	3, %o1
+	ba	.nbif_simple_exception
+	mov	3, %o1		/* delay slot */
+	.global	nbif_4_simple_exception
+nbif_4_simple_exception:
+	mov	4, %o1
 	/*FALLTHROUGH*/
 .nbif_simple_exception:
 	ld	[P+P_FREASON], %o0
diff --git a/erts/emulator/hipe/hipe_stack.h b/erts/emulator/hipe/hipe_stack.h
index 66f9f04c73..4cfdb54dd8 100644
--- a/erts/emulator/hipe/hipe_stack.h
+++ b/erts/emulator/hipe/hipe_stack.h
@@ -108,12 +108,23 @@ extern int hipe_fill_stacktrace(Process*, int, Eterm**);
 #if 0 && defined(HIPE_NSTACK_GROWS_UP)
 #define hipe_nstack_start(p)	((p)->hipe.nstack)
 #define hipe_nstack_used(p)	((p)->hipe.nsp - (p)->hipe.nstack)
+#define hipe_nstack_avail(p)	((p)->hipe.nstend - (p)->hipe.nsp)
 #endif
 #if defined(HIPE_NSTACK_GROWS_DOWN)
 #define hipe_nstack_start(p)	((p)->hipe.nsp)
 #define hipe_nstack_used(p)	((p)->hipe.nstend - (p)->hipe.nsp)
+#define hipe_nstack_avail(p)	((unsigned)((p)->hipe.nsp - (p)->hipe.nstack))
 #endif
 
+/* ensure that at least nwords words are available on the native stack */
+static __inline__ void hipe_check_nstack(Process *p, unsigned nwords)
+{
+    extern void hipe_inc_nstack(Process *p);
+
+    while (hipe_nstack_avail(p) < nwords)
+	hipe_inc_nstack(p);
+}
+
 /*
  * GC support procedures
  */
diff --git a/erts/emulator/hipe/hipe_x86.c b/erts/emulator/hipe/hipe_x86.c
index 327c74e9aa..998905ea63 100644
--- a/erts/emulator/hipe/hipe_x86.c
+++ b/erts/emulator/hipe/hipe_x86.c
@@ -108,7 +108,7 @@ static void atexit_alloc_code_stats(void)
 #define MAP_ANONYMOUS MAP_ANON
 #endif
 
-static void morecore(unsigned int alloc_bytes)
+static int morecore(unsigned int alloc_bytes)
 {
     unsigned int map_bytes;
     char *map_hint, *map_start;
@@ -136,10 +136,9 @@ static void morecore(unsigned int alloc_bytes)
 #endif
 		     ,
 		     -1, 0);
-    if (map_start == MAP_FAILED) {
-	perror("mmap");
-	abort();
-    }
+    if (map_start == MAP_FAILED)
+	return -1;
+
     ALLOC_CODE_STATS(total_mapped += map_bytes);
 
     /* Merge adjacent mappings, so the trailing portion of the previous
@@ -155,6 +154,8 @@ static void morecore(unsigned int alloc_bytes)
     }
 
     ALLOC_CODE_STATS(atexit_alloc_code_stats());
+
+    return 0;
 }
 
 static void *alloc_code(unsigned int alloc_bytes)
@@ -164,8 +165,8 @@ static void *alloc_code(unsigned int alloc_bytes)
     /* Align function entries. */
     alloc_bytes = (alloc_bytes + 3) & ~3;
 
-    if (code_bytes < alloc_bytes)
-	morecore(alloc_bytes);
+    if (code_bytes < alloc_bytes && morecore(alloc_bytes) != 0)
+	return NULL;
     ALLOC_CODE_STATS(++nr_allocs);
     ALLOC_CODE_STATS(total_alloc += alloc_bytes);
     res = code_next;
@@ -182,18 +183,16 @@ void *hipe_alloc_code(Uint nrbytes, Eterm callees, Eterm *trampolines, Process *
     return alloc_code(nrbytes);
 }
 
-/* called from hipe_bif0.c:hipe_bifs_make_native_stub_2()
-   and hipe_bif0.c:hipe_make_stub() */
-void *hipe_make_native_stub(void *beamAddress, unsigned int beamArity)
+void *hipe_make_native_stub(void *callee_exp, unsigned int beamArity)
 {
     /*
      * This creates a native code stub with the following contents:
      *
-     * movl $Address, P_BEAM_IP(%ebp)
+     * movl $Address, P_CALLEE_EXP(%ebp)
      * movb $Arity, P_ARITY(%ebp)
      * jmp callemu
      *
-     * The stub has variable size, depending on whether the P_BEAM_IP
+     * The stub has variable size, depending on whether the P_CALLEE_EXP
      * and P_ARITY offsets fit in 8-bit signed displacements or not.
      * The rel32 offset in the final jmp depends on its actual location,
      * which also depends on the size of the previous instructions.
@@ -206,28 +205,30 @@ void *hipe_make_native_stub(void *beamAddress, unsigned int beamArity)
 
     codeSize =	/* 16, 19, or 22 bytes */
 	16 +	/* 16 when both offsets are 8-bit */
-	(P_BEAM_IP >= 128 ? 3 : 0) +
+	(P_CALLEE_EXP >= 128 ? 3 : 0) +
 	(P_ARITY >= 128 ? 3 : 0);
     codep = code = alloc_code(codeSize);
+    if (!code)
+	return NULL;
 
-    /* movl $beamAddress, P_BEAM_IP(%ebp); 3 or 6 bytes, plus 4 */
+    /* movl $beamAddress, P_CALLEE_EXP(%ebp); 3 or 6 bytes, plus 4 */
     codep[0] = 0xc7;
-#if P_BEAM_IP >= 128
+#if P_CALLEE_EXP >= 128
     codep[1] = 0x85;	/* disp32[EBP] */
-    codep[2] = P_BEAM_IP & 0xFF;
-    codep[3] = (P_BEAM_IP >> 8) & 0xFF;
-    codep[4] = (P_BEAM_IP >> 16) & 0xFF;
-    codep[5] = (P_BEAM_IP >> 24) & 0xFF;
+    codep[2] = P_CALLEE_EXP & 0xFF;
+    codep[3] = (P_CALLEE_EXP >> 8) & 0xFF;
+    codep[4] = (P_CALLEE_EXP >> 16) & 0xFF;
+    codep[5] = (P_CALLEE_EXP >> 24) & 0xFF;
     codep += 6;
 #else
     codep[1] = 0x45;	/* disp8[EBP] */
-    codep[2] = P_BEAM_IP;
+    codep[2] = P_CALLEE_EXP;
     codep += 3;
 #endif
-    codep[0] = ((unsigned int)beamAddress) & 0xFF;
-    codep[1] = ((unsigned int)beamAddress >> 8) & 0xFF;
-    codep[2] = ((unsigned int)beamAddress >> 16) & 0xFF;
-    codep[3] = ((unsigned int)beamAddress >> 24) & 0xFF;
+    codep[0] = ((unsigned int)callee_exp) & 0xFF;
+    codep[1] = ((unsigned int)callee_exp >> 8) & 0xFF;
+    codep[2] = ((unsigned int)callee_exp >> 16) & 0xFF;
+    codep[3] = ((unsigned int)callee_exp >> 24) & 0xFF;
     codep += 4;
 
     /* movb $beamArity, P_ARITY(%ebp); 3 or 6 bytes */
diff --git a/erts/emulator/hipe/hipe_x86.h b/erts/emulator/hipe/hipe_x86.h
index 97f09e38cd..f29117d0c4 100644
--- a/erts/emulator/hipe/hipe_x86.h
+++ b/erts/emulator/hipe/hipe_x86.h
@@ -53,8 +53,4 @@ extern void nbif_inc_stack_0(void);
 extern void nbif_handle_fp_exception(void);
 #endif
 
-/* for hipe_bifs_enter_code_2 */
-extern void *hipe_alloc_code(Uint nrbytes, Eterm callees, Eterm *trampolines, Process *p);
-#define HIPE_ALLOC_CODE(n,c,t,p) hipe_alloc_code((n),(c),(t),(p))
-
 #endif /* HIPE_X86_H */
diff --git a/erts/emulator/hipe/hipe_x86_asm.m4 b/erts/emulator/hipe/hipe_x86_asm.m4
index 020ccf8d4b..436feca506 100644
--- a/erts/emulator/hipe/hipe_x86_asm.m4
+++ b/erts/emulator/hipe/hipe_x86_asm.m4
@@ -33,6 +33,18 @@ define(SIMULATE_NSP,0)dnl change to 1 to simulate call/ret insns
 `#define X86_LEAF_WORDS	'LEAF_WORDS
 `#define LEAF_WORDS	'LEAF_WORDS
 
+`#define X86_NR_ARG_REGS	'NR_ARG_REGS
+`#define NR_ARG_REGS	'NR_ARG_REGS
+
+`#define X86_HP_IN_ESI	'HP_IN_ESI
+`#define X86_SIMULATE_NSP	'SIMULATE_NSP
+
+
+`#ifdef ASM'
+/*
+ * Only assembler stuff from here on (when included from *.S)
+ */
+
 /*
  * Workarounds for Darwin.
  */
@@ -60,7 +72,6 @@ ifelse(OPSYS,darwin,``
  */
 `#define P	%ebp'
 
-`#define X86_HP_IN_ESI	'HP_IN_ESI
 `#if X86_HP_IN_ESI
 #define SAVE_HP		movl %esi, P_HP(P)
 #define RESTORE_HP	movl P_HP(P), %esi
@@ -73,7 +84,6 @@ ifelse(OPSYS,darwin,``
 #define SAVE_CSP	movl %esp, P_CSP(P)
 #define RESTORE_CSP	movl P_CSP(P), %esp'
 
-`#define X86_SIMULATE_NSP	'SIMULATE_NSP
 
 /*
  * Context switching macros.
@@ -100,12 +110,10 @@ ifelse(OPSYS,darwin,``
 	SAVE_CACHED_STATE;	\
 	SWITCH_ERLANG_TO_C_QUICK'
 
+
 /*
  * Argument (parameter) registers.
  */
-`#define X86_NR_ARG_REGS	'NR_ARG_REGS
-`#define NR_ARG_REGS	'NR_ARG_REGS
-
 ifelse(eval(NR_ARG_REGS >= 1),0,,
 ``#define ARG0	%eax
 '')dnl
@@ -204,6 +212,7 @@ define(NBIF_COPY_NSP,`ifelse(eval($1 > NR_ARG_REGS),0,,`movl	%esp, TEMP_NSP')')d
 `/* #define NBIF_COPY_NSP_1	'NBIF_COPY_NSP(1)` */'
 `/* #define NBIF_COPY_NSP_2	'NBIF_COPY_NSP(2)` */'
 `/* #define NBIF_COPY_NSP_3	'NBIF_COPY_NSP(3)` */'
+`/* #define NBIF_COPY_NSP_4	'NBIF_COPY_NSP(4)` */'
 `/* #define NBIF_COPY_NSP_5	'NBIF_COPY_NSP(5)` */'
 
 dnl
@@ -227,6 +236,10 @@ define(NBIF_ARG_OPND,`ifelse(eval($2 >= NR_ARG_REGS),0,`ARG'$2,BASE_OFFSET(eval(
 `/* #define NBIF_ARG_OPND_3_0	'NBIF_ARG_OPND(3,0)` */'
 `/* #define NBIF_ARG_OPND_3_1	'NBIF_ARG_OPND(3,1)` */'
 `/* #define NBIF_ARG_OPND_3_2	'NBIF_ARG_OPND(3,2)` */'
+`/* #define NBIF_ARG_OPND_4_0	'NBIF_ARG_OPND(4,0)` */'
+`/* #define NBIF_ARG_OPND_4_1	'NBIF_ARG_OPND(4,1)` */'
+`/* #define NBIF_ARG_OPND_4_2	'NBIF_ARG_OPND(4,2)` */'
+`/* #define NBIF_ARG_OPND_4_3	'NBIF_ARG_OPND(4,3)` */'
 `/* #define NBIF_ARG_OPND_5_0	'NBIF_ARG_OPND(5,0)` */'
 `/* #define NBIF_ARG_OPND_5_1	'NBIF_ARG_OPND(5,1)` */'
 `/* #define NBIF_ARG_OPND_5_2	'NBIF_ARG_OPND(5,2)` */'
@@ -266,6 +279,7 @@ define(NBIF_RET,`NBIF_RET_N(eval(RET_POP($1)))')dnl
 `/* #define NBIF_RET_1	'NBIF_RET(1)` */'
 `/* #define NBIF_RET_2	'NBIF_RET(2)` */'
 `/* #define NBIF_RET_3	'NBIF_RET(3)` */'
+`/* #define NBIF_RET_4	'NBIF_RET(4)` */'
 `/* #define NBIF_RET_5	'NBIF_RET(5)` */'
 
 dnl
@@ -282,4 +296,6 @@ define(LOAD_CALLER_SAVE,`LAR_N(eval(NR_CALLER_SAVE-1))')dnl
 `#define STORE_CALLER_SAVE	'STORE_CALLER_SAVE
 `#define LOAD_CALLER_SAVE	'LOAD_CALLER_SAVE
 
+`#endif /* ASM */'
+
 `#endif /* HIPE_X86_ASM_H */'
diff --git a/erts/emulator/hipe/hipe_x86_bifs.m4 b/erts/emulator/hipe/hipe_x86_bifs.m4
index dd6980f555..bf549c90e4 100644
--- a/erts/emulator/hipe/hipe_x86_bifs.m4
+++ b/erts/emulator/hipe/hipe_x86_bifs.m4
@@ -19,6 +19,7 @@ changecom(`/*', `*/')dnl
  */
 
 
+#`define ASM'
 include(`hipe/hipe_x86_asm.m4')
 #`include' "config.h"
 #`include' "hipe_literals.h"
@@ -47,9 +48,10 @@ define(HANDLE_GOT_MBUF,`
  * standard_bif_interface_1(nbif_name, cbif_name)
  * standard_bif_interface_2(nbif_name, cbif_name)
  * standard_bif_interface_3(nbif_name, cbif_name)
+ * standard_bif_interface_4(nbif_name, cbif_name)
  * standard_bif_interface_0(nbif_name, cbif_name)
  *
- * Generate native interface for a BIF with 0-3 parameters and
+ * Generate native interface for a BIF with 0-4 parameters and
  * standard failure mode.
  */
 define(standard_bif_interface_1,
@@ -157,6 +159,43 @@ ASYM($1):
 	TYPE_FUNCTION(ASYM($1))
 #endif')
 
+define(standard_bif_interface_4,
+`
+#ifndef HAVE_$1
+#`define' HAVE_$1
+	TEXT
+	.align	4
+	GLOBAL(ASYM($1))
+ASYM($1):
+	/* copy native stack pointer */
+	NBIF_COPY_NSP(4)
+
+	/* switch to C stack */
+	SWITCH_ERLANG_TO_C
+
+	/* make the call on the C stack */
+	NBIF_ARG_REG(0,P)
+	NBIF_ARG(2,4,0)
+	NBIF_ARG(3,4,1)
+	NBIF_ARG(4,4,2)
+	NBIF_ARG(5,4,3)
+	lea 8(%esp), %eax
+	NBIF_ARG_REG(1,%eax)	/* BIF__ARGS */
+	CALL_BIF($2)
+	TEST_GOT_MBUF
+
+	/* switch to native stack */
+	SWITCH_C_TO_ERLANG
+
+	/* throw exception if failure, otherwise return */
+	TEST_GOT_EXN
+	jz	nbif_4_simple_exception
+	NBIF_RET(4)
+	HANDLE_GOT_MBUF(4)
+	SET_SIZE(ASYM($1))
+	TYPE_FUNCTION(ASYM($1))
+#endif')
+
 define(standard_bif_interface_0,
 `
 #ifndef HAVE_$1
diff --git a/erts/emulator/hipe/hipe_x86_glue.S b/erts/emulator/hipe/hipe_x86_glue.S
index 88b86f4de7..f124e36a26 100644
--- a/erts/emulator/hipe/hipe_x86_glue.S
+++ b/erts/emulator/hipe/hipe_x86_glue.S
@@ -18,10 +18,9 @@
  * %CopyrightEnd%
  */
 
-
+#define ASM
 #include "hipe_x86_asm.h"
 #include "hipe_literals.h"
-#define ASM
 #include "hipe_mode_switch.h"
 
 /*
@@ -104,7 +103,7 @@ ASYM(nbif_return):
  * stub (hipe_x86_loader.erl) which should look as follows:
  *
  * stub for f/N:
- *	movl	$<f's BEAM code address>, P_BEAM_IP(P)
+ *	movl	$<f's export entry address>, P_CALLEE_EXP(P)
  *	movb	$<N>, P_ARITY(P)
  *	jmp	nbif_callemu
  *
@@ -114,7 +113,7 @@ ASYM(nbif_return):
 	GLOBAL(ASYM(nbif_callemu))
 ASYM(nbif_callemu):
 	STORE_ARG_REGS
-	movl	$HIPE_MODE_SWITCH_RES_CALL, %eax
+	movl	$HIPE_MODE_SWITCH_RES_CALL_EXPORTED, %eax
 	jmp	.suspend_exit
 
 /*
@@ -300,6 +299,7 @@ ASYM(nbif_fail):
 	GLOBAL(nbif_1_gc_after_bif)
 	GLOBAL(nbif_2_gc_after_bif)
 	GLOBAL(nbif_3_gc_after_bif)
+	GLOBAL(nbif_4_gc_after_bif)
 	.align	4
 nbif_0_gc_after_bif:
 	xorl	%edx, %edx
@@ -315,6 +315,10 @@ nbif_2_gc_after_bif:
 	.align	4
 nbif_3_gc_after_bif:
 	movl	$3, %edx
+	jmp	.gc_after_bif
+	.align	4
+nbif_4_gc_after_bif:
+	movl	$4, %edx
 	/*FALLTHROUGH*/
 	.align	4
 .gc_after_bif:
@@ -338,6 +342,7 @@ nbif_3_gc_after_bif:
 	GLOBAL(nbif_1_simple_exception)
 	GLOBAL(nbif_2_simple_exception)
 	GLOBAL(nbif_3_simple_exception)
+	GLOBAL(nbif_4_simple_exception)
 	.align	4
 nbif_0_simple_exception:
 	xorl	%eax, %eax
@@ -353,6 +358,10 @@ nbif_2_simple_exception:
 	.align	4
 nbif_3_simple_exception:
 	movl	$3, %eax
+	jmp	.nbif_simple_exception
+	.align	4
+nbif_4_simple_exception:
+	movl	$4, %eax
 	/*FALLTHROUGH*/
 	.align	4
 .nbif_simple_exception:
diff --git a/erts/emulator/hipe/hipe_x86_stack.c b/erts/emulator/hipe/hipe_x86_stack.c
index 9ad3fa9d31..7f1c2f7d41 100644
--- a/erts/emulator/hipe/hipe_x86_stack.c
+++ b/erts/emulator/hipe/hipe_x86_stack.c
@@ -209,7 +209,7 @@ void (*hipe_handle_stack_trap(Process *p))(void)
  * The native stack MUST contain a stack frame as it appears on
  * entry to a function (return address, actuals, caller's frame).
  * p->hipe.narity MUST contain the arity (number of actuals).
- * On exit, p->hipe.ncallee is set to the handler's PC and p->hipe.nsp
+ * On exit, p->hipe.u.ncallee is set to the handler's PC and p->hipe.nsp
  * is set to its SP (low address of its stack frame).
  */
 void hipe_find_handler(Process *p)
@@ -240,7 +240,7 @@ void hipe_find_handler(Process *p)
 	if ((exnra = sdesc_exnra(sdesc)) != 0 &&
 	    (p->catches >= 0 ||
 	     exnra == (unsigned long)nbif_fail)) {
-	    p->hipe.ncallee = (void(*)(void)) exnra;
+	    p->hipe.u.ncallee = (void(*)(void)) exnra;
 	    p->hipe.nsp = nsp;
 	    p->hipe.narity = 0;
 	    /* update the gray/white boundary if we threw past it */
diff --git a/erts/emulator/sys/common/erl_check_io.c b/erts/emulator/sys/common/erl_check_io.c
index 0051b45b31..d1d6696090 100644
--- a/erts/emulator/sys/common/erl_check_io.c
+++ b/erts/emulator/sys/common/erl_check_io.c
@@ -38,6 +38,8 @@
 #include "erl_check_io.h"
 #include "erl_thr_progress.h"
 #include "dtrace-wrapper.h"
+#define ERTS_WANT_TIMER_WHEEL_API
+#include "erl_time.h"
 
 #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
 #else
@@ -1590,9 +1592,9 @@ ERTS_CIO_EXPORT(erts_check_io_interrupt)(int set)
 
 void
 ERTS_CIO_EXPORT(erts_check_io_interrupt_timed)(int set,
-					       erts_short_time_t msec)
+					       ErtsMonotonicTime timeout_time)
 {
-    ERTS_CIO_POLL_INTR_TMD(pollset.ps, set, msec);
+    ERTS_CIO_POLL_INTR_TMD(pollset.ps, set, timeout_time);
 }
 
 void
@@ -1600,9 +1602,12 @@ ERTS_CIO_EXPORT(erts_check_io)(int do_wait)
 {
     ErtsPollResFd *pollres;
     int pollres_len;
-    SysTimeval wait_time;
+    ErtsMonotonicTime timeout_time;
     int poll_ret, i;
     erts_aint_t current_cio_time;
+    ErtsSchedulerData *esdp = erts_get_scheduler_data();
+
+    ASSERT(esdp);
 
  restart:
 
@@ -1612,12 +1617,9 @@ ERTS_CIO_EXPORT(erts_check_io)(int do_wait)
 #endif
 
     /* Figure out timeout value */
-    if (do_wait) {
-	erts_time_remaining(&wait_time);
-    } else {			/* poll only */
-	wait_time.tv_sec = 0;
-	wait_time.tv_usec = 0;
-    }
+    timeout_time = (do_wait
+		    ? erts_check_next_timeout_time(esdp)
+		    : ERTS_POLL_NO_TIMEOUT /* poll only */);
 
     /*
      * No need for an atomic inc op when incrementing
@@ -1640,14 +1642,12 @@ ERTS_CIO_EXPORT(erts_check_io)(int do_wait)
 
     erts_smp_atomic_set_nob(&pollset.in_poll_wait, 1);
 
-    poll_ret = ERTS_CIO_POLL_WAIT(pollset.ps, pollres, &pollres_len, &wait_time);
+    poll_ret = ERTS_CIO_POLL_WAIT(pollset.ps, pollres, &pollres_len, timeout_time);
 
 #ifdef ERTS_ENABLE_LOCK_CHECK
     erts_lc_check_exact(NULL, 0); /* No locks should be locked */
 #endif
 
-    erts_deliver_time(); /* sync the machine's idea of time */
-
 #ifdef ERTS_BREAK_REQUESTED
     if (ERTS_BREAK_REQUESTED)
 	erts_do_break_handling();
diff --git a/erts/emulator/sys/common/erl_check_io.h b/erts/emulator/sys/common/erl_check_io.h
index d01297d55c..71355965aa 100644
--- a/erts/emulator/sys/common/erl_check_io.h
+++ b/erts/emulator/sys/common/erl_check_io.h
@@ -47,8 +47,8 @@ void erts_check_io_async_sig_interrupt_nkp(void);
 #endif
 void erts_check_io_interrupt_kp(int);
 void erts_check_io_interrupt_nkp(int);
-void erts_check_io_interrupt_timed_kp(int, erts_short_time_t);
-void erts_check_io_interrupt_timed_nkp(int, erts_short_time_t);
+void erts_check_io_interrupt_timed_kp(int, ErtsMonotonicTime);
+void erts_check_io_interrupt_timed_nkp(int, ErtsMonotonicTime);
 void erts_check_io_kp(int);
 void erts_check_io_nkp(int);
 void erts_init_check_io_kp(void);
@@ -65,7 +65,7 @@ int erts_check_io_max_files(void);
 void erts_check_io_async_sig_interrupt(void);
 #endif
 void erts_check_io_interrupt(int);
-void erts_check_io_interrupt_timed(int, erts_short_time_t);
+void erts_check_io_interrupt_timed(int, ErtsMonotonicTime);
 void erts_check_io(int);
 void erts_init_check_io(void);
 
diff --git a/erts/emulator/sys/common/erl_os_monotonic_time_extender.c b/erts/emulator/sys/common/erl_os_monotonic_time_extender.c
new file mode 100644
index 0000000000..f3633b7267
--- /dev/null
+++ b/erts/emulator/sys/common/erl_os_monotonic_time_extender.c
@@ -0,0 +1,88 @@
+/*
+ * %CopyrightBegin%
+ * 
+ * Copyright Ericsson AB 2015. All Rights Reserved.
+ * 
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ * 
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * %CopyrightEnd%
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+#include "erl_os_monotonic_time_extender.h"
+
+#ifdef USE_THREADS
+
+static void *os_monotonic_time_extender(void *vstatep)
+{
+    ErtsOsMonotonicTimeExtendState *state = (ErtsOsMonotonicTimeExtendState *) vstatep;
+    long sleep_time = state->check_interval*1000;
+    Uint32 (*raw_os_mtime)(void) = state->raw_os_monotonic_time;
+    Uint32 last_msb = 0;
+
+    while (1) {
+	Uint32 msb = (*raw_os_mtime)() & (((Uint32) 1) << 31);
+
+	if (msb != last_msb) {
+	    int ix = ((int) (last_msb >> 31)) & 1;
+	    Uint32 xtnd = (Uint32) erts_atomic32_read_nob(&state->extend[ix]);
+	    erts_atomic32_set_nob(&state->extend[ix], (erts_aint32_t) (xtnd + 1));
+	    last_msb = msb;
+	}
+	erts_milli_sleep(sleep_time);
+    }
+
+    erl_exit(ERTS_ABORT_EXIT, "os_monotonic_time_extender thread terminating");
+    return NULL;
+}
+
+static erts_tid_t os_monotonic_extender_tid;
+#endif
+
+void
+erts_init_os_monotonic_time_extender(ErtsOsMonotonicTimeExtendState *statep,
+				     Uint32 (*raw_os_monotonic_time)(void),
+				     int check_seconds)
+{
+#ifdef USE_THREADS
+    statep->raw_os_monotonic_time = raw_os_monotonic_time;
+    erts_atomic32_init_nob(&statep->extend[0], (erts_aint32_t) 0);
+    erts_atomic32_init_nob(&statep->extend[1], (erts_aint32_t) 0);
+    statep->check_interval = check_seconds;
+
+#else
+    statep->extend[0] = (Uint32) 0;
+    statep->extend[1] = (Uint32) 0;
+    statep->last_msb = (ErtsMonotonicTime) 0;
+#endif
+}
+
+void
+erts_late_init_os_monotonic_time_extender(ErtsOsMonotonicTimeExtendState *statep)
+{
+#ifdef USE_THREADS
+    erts_thr_opts_t thr_opts = ERTS_THR_OPTS_DEFAULT_INITER;
+    thr_opts.detached = 1;
+    thr_opts.suggested_stack_size = 4;
+
+#if 0
+    thr_opts.name = "os_monotonic_time_extender";
+#endif
+
+    erts_thr_create(&os_monotonic_extender_tid,
+		    os_monotonic_time_extender,
+		    (void*) statep,
+		    &thr_opts);
+#endif
+}
diff --git a/erts/emulator/sys/common/erl_os_monotonic_time_extender.h b/erts/emulator/sys/common/erl_os_monotonic_time_extender.h
new file mode 100644
index 0000000000..0f9e7c86ae
--- /dev/null
+++ b/erts/emulator/sys/common/erl_os_monotonic_time_extender.h
@@ -0,0 +1,65 @@
+/*
+ * %CopyrightBegin%
+ * 
+ * Copyright Ericsson AB 2015. All Rights Reserved.
+ * 
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ * 
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * %CopyrightEnd%
+ */
+
+#ifndef ERL_OS_MONOTONIC_TIME_EXTENDER_H__
+#define ERL_OS_MONOTONIC_TIME_EXTENDER_H__
+
+#include "sys.h"
+#include "erl_threads.h"
+
+typedef struct {
+#ifdef USE_THREADS
+    Uint32 (*raw_os_monotonic_time)(void);
+    erts_atomic32_t extend[2];
+    int check_interval;
+#else
+    Uint32 extend[2];
+    ErtsMonotonicTime last_msb;
+#endif
+} ErtsOsMonotonicTimeExtendState;
+
+#ifdef USE_THREADS
+#  define ERTS_CHK_EXTEND_OS_MONOTONIC_TIME(S, RT) ((void) 1)
+#  define ERTS_EXTEND_OS_MONOTONIC_TIME(S, RT)				\
+    ((((ErtsMonotonicTime)						\
+       erts_atomic32_read_nob(&((S)->extend[((int) ((RT) >> 31)) & 1]))) \
+      << 32)								\
+     + (RT))
+#else
+#  define ERTS_CHK_EXTEND_OS_MONOTONIC_TIME(S, RT)			\
+    do {								\
+	Uint32 msb__ = (RT) & (((Uint32) 1) << 31);			\
+	if (msb__ != (S)->last_msb) {					\
+	    int ix__ = ((int) ((S)->last_msb >> 31)) & 1;		\
+	    (S)->extend[ix__]++;					\
+	    (S)->last_msb = msb;					\
+	}								\
+    } while (0)
+#  define ERTS_EXTEND_OS_MONOTONIC_TIME(S, RT)				\
+    ((((ErtsMonotonicTime) (S)->extend[((int) ((RT) >> 31)) & 1]) << 32) + (RT))
+#endif
+
+void
+erts_init_os_monotonic_time_extender(ErtsOsMonotonicTimeExtendState *statep,
+				     Uint32 (*raw_os_monotonic_time)(void),
+				     int check_seconds);
+void
+erts_late_init_os_monotonic_time_extender(ErtsOsMonotonicTimeExtendState *statep);
+
+#endif
diff --git a/erts/emulator/sys/common/erl_poll.c b/erts/emulator/sys/common/erl_poll.c
index aa412a20c8..71c4239902 100644
--- a/erts/emulator/sys/common/erl_poll.c
+++ b/erts/emulator/sys/common/erl_poll.c
@@ -314,13 +314,16 @@ struct ErtsPollSet_ {
 #if ERTS_POLL_USE_WAKEUP_PIPE
     int wake_fds[2];
 #endif
+#if ERTS_POLL_USE_TIMERFD
+    int timer_fd;
+#endif
 #if ERTS_POLL_USE_FALLBACK
     int fallback_used;
 #endif
 #if defined(USE_THREADS) || ERTS_POLL_ASYNC_INTERRUPT_SUPPORT
     erts_atomic32_t wakeup_state;
 #endif
-    erts_smp_atomic32_t timeout;
+    erts_atomic64_t timeout_time;
 #ifdef ERTS_POLL_COUNT_AVOIDED_WAKEUPS
     erts_smp_atomic_t no_avoided_wakeups;
     erts_smp_atomic_t no_avoided_interrupts;
@@ -384,6 +387,26 @@ static void check_poll_status(ErtsPollSet ps);
 static void print_misc_debug_info(void);
 #endif
 
+static ERTS_INLINE void
+init_timeout_time(ErtsPollSet ps)
+{
+    erts_atomic64_init_nob(&ps->timeout_time,
+			   (erts_aint64_t) ERTS_MONOTONIC_TIME_MAX);
+}
+
+static ERTS_INLINE void
+set_timeout_time(ErtsPollSet ps, ErtsMonotonicTime time)
+{
+    erts_atomic64_set_relb(&ps->timeout_time,
+			   (erts_aint64_t) time);
+}
+
+static ERTS_INLINE ErtsMonotonicTime
+get_timeout_time(ErtsPollSet ps)
+{
+    return (ErtsMonotonicTime) erts_atomic64_read_acqb(&ps->timeout_time);
+}
+
 #define ERTS_POLL_NOT_WOKEN	0
 #define ERTS_POLL_WOKEN		-1
 #define ERTS_POLL_WOKEN_INTR	1
@@ -560,6 +583,75 @@ create_wakeup_pipe(ErtsPollSet ps)
 #endif /* ERTS_POLL_USE_WAKEUP_PIPE */
 
 /*
+ * --- timer fd -----------------------------------------------------------
+ */
+
+#if ERTS_POLL_USE_TIMERFD
+
+/* We use the timerfd when using epoll_wait to get high accuracy
+   timeouts, i.e. we want to sleep with < ms accuracy. */
+
+static void
+create_timerfd(ErtsPollSet ps)
+{
+    int do_wake = 0;
+    int timer_fd;
+    timer_fd = timerfd_create(CLOCK_MONOTONIC,0);
+    ERTS_POLL_EXPORT(erts_poll_control)(ps,
+					timer_fd,
+					ERTS_POLL_EV_IN,
+					1, &do_wake);
+#if ERTS_POLL_USE_FALLBACK
+    /* We depend on the wakeup pipe being handled by kernel poll */
+    if (ps->fds_status[timer_fd].flags & ERTS_POLL_FD_FLG_INFLBCK)
+	fatal_error("%s:%d:create_wakeup_pipe(): Internal error\n",
+		    __FILE__, __LINE__);
+#endif
+    if (ps->internal_fd_limit <= timer_fd)
+	ps->internal_fd_limit = timer_fd + 1;
+    ps->timer_fd = timer_fd;
+}
+
+static ERTS_INLINE void
+timerfd_set(ErtsPollSet ps, struct itimerspec *its)
+{
+#ifdef DEBUG
+    struct itimerspec old_its;
+    int res;
+    res = timerfd_settime(ps->timer_fd, 0, its, &old_its);
+    ASSERT(res == 0);
+    ASSERT(old_its.it_interval.tv_sec == 0 &&
+           old_its.it_interval.tv_nsec == 0 &&
+           old_its.it_value.tv_sec == 0 &&
+           old_its.it_value.tv_nsec == 0);
+
+#else
+    timerfd_settime(ps->timer_fd, 0, its, NULL);
+#endif
+}
+
+static ERTS_INLINE int
+timerfd_clear(ErtsPollSet ps, int res, int max_res) {
+
+    struct itimerspec its;
+    /* we always have to clear the timer */
+    its.it_interval.tv_sec = 0;
+    its.it_interval.tv_nsec = 0;
+    its.it_value.tv_sec = 0;
+    its.it_value.tv_nsec = 0;
+    timerfd_settime(ps->timer_fd, 0, &its, NULL);
+
+    /* only timeout fd triggered */
+    if (res == 1 && ps->res_events[0].data.fd == ps->timer_fd)
+        return 0;
+
+    return res;
+}
+
+#endif /* ERTS_POLL_USE_TIMERFD */
+
+
+/*
  * --- Poll set update requests ----------------------------------------------
  */
 #if ERTS_POLL_USE_UPDATE_REQUESTS_QUEUE
@@ -1497,6 +1589,12 @@ poll_control(ErtsPollSet ps, int fd, ErtsPollEvents events, int on, int *do_wake
 	    goto done;
 	}
 #endif
+#if ERTS_POLL_USE_TIMERFD
+	if (fd == ps->timer_fd) {
+	    new_events = ERTS_POLL_EV_NVAL;
+	    goto done;
+	}
+#endif
     }
 
     if (fd >= ps->fds_status_len)
@@ -1644,6 +1742,9 @@ save_kp_result(ErtsPollSet ps, ErtsPollResFd pr[], int max_res, int chk_fds_res)
 #if ERTS_POLL_USE_WAKEUP_PIPE
     int wake_fd = ps->wake_fds[0];
 #endif
+#if ERTS_POLL_USE_TIMERFD
+    int timer_fd = ps->timer_fd;
+#endif
 
     for (i = 0; i < n; i++) {
 
@@ -1659,6 +1760,11 @@ save_kp_result(ErtsPollSet ps, ErtsPollResFd pr[], int max_res, int chk_fds_res)
 		continue;
 	    }
 #endif
+#if ERTS_POLL_USE_TIMERFD
+            if (fd == timer_fd) {
+                continue;
+            }
+#endif
 	    ASSERT(!(ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_INFLBCK));
 	    /* epoll_wait() can repeat the same fd in result array... */
 	    ix = (int) ps->fds_status[fd].res_ev_ix;
@@ -1733,6 +1839,11 @@ save_kp_result(ErtsPollSet ps, ErtsPollResFd pr[], int max_res, int chk_fds_res)
 		continue;
 	    }
 #endif
+#if ERTS_POLL_USE_TIMERFD
+	    if (fd == timer_fd) {
+		continue;
+	    }
+#endif
 	    revents = ERTS_POLL_EV_N2E(ps->res_events[i].events);
 	    pr[res].fd = fd;
 	    pr[res].events = revents;
@@ -1993,44 +2104,186 @@ save_poll_result(ErtsPollSet ps, ErtsPollResFd pr[], int max_res,
     }
 }
 
+static ERTS_INLINE ErtsMonotonicTime
+get_timeout(ErtsPollSet ps,
+	    int resolution,
+	    ErtsMonotonicTime timeout_time)
+{
+    ErtsMonotonicTime timeout, save_timeout_time;
+
+    if (timeout_time == ERTS_POLL_NO_TIMEOUT) {
+	save_timeout_time = ERTS_MONOTONIC_TIME_MIN;
+	timeout = 0;
+    }
+    else {
+	ErtsMonotonicTime diff_time, current_time;
+	current_time = erts_get_monotonic_time(NULL);
+	diff_time = timeout_time - current_time;
+	if (diff_time <= 0) {
+	    save_timeout_time = ERTS_MONOTONIC_TIME_MIN;
+	    timeout = 0;
+	}
+	else {
+	    save_timeout_time = current_time;
+	    switch (resolution) {
+	    case 1000:
+		/* Round up to nearest even milli second */
+		timeout = ERTS_MONOTONIC_TO_MSEC(diff_time - 1) + 1;
+		if (timeout > (ErtsMonotonicTime) INT_MAX)
+		    timeout = (ErtsMonotonicTime) INT_MAX;
+		save_timeout_time += ERTS_MSEC_TO_MONOTONIC(timeout);
+		break;
+	    case 1000000:
+		/* Round up to nearest even micro second */
+		timeout = ERTS_MONOTONIC_TO_USEC(diff_time - 1) + 1;
+		save_timeout_time += ERTS_USEC_TO_MONOTONIC(timeout);
+		break;
+	    case 1000000000:
+		/* Round up to nearest even nano second */
+		timeout = ERTS_MONOTONIC_TO_NSEC(diff_time - 1) + 1;
+		save_timeout_time += ERTS_NSEC_TO_MONOTONIC(timeout);
+		break;
+	    default:
+		ERTS_INTERNAL_ERROR("Invalid resolution");
+		timeout = 0;
+		save_timeout_time = 0;
+		break;
+	    }
+	}
+    }
+    set_timeout_time(ps, save_timeout_time);
+    return timeout;
+}
+
+#if ERTS_POLL_USE_SELECT
+
+static ERTS_INLINE int
+get_timeout_timeval(ErtsPollSet ps,
+		    SysTimeval *tvp,
+		    ErtsMonotonicTime timeout_time)
+{
+    ErtsMonotonicTime timeout = get_timeout(ps,
+					    1000*1000,
+					    timeout_time);
+
+    if (!timeout) {
+	tvp->tv_sec = 0;
+	tvp->tv_usec = 0;
+
+	return 0;
+    }
+    else {
+	ErtsMonotonicTime sec = timeout/(1000*1000);
+	tvp->tv_sec = sec;
+	tvp->tv_usec = timeout - sec*(1000*1000);
+
+	ASSERT(tvp->tv_sec >= 0);
+	ASSERT(tvp->tv_usec >= 0);
+	ASSERT(tvp->tv_usec < 1000*1000);
+
+	return !0;
+    }
+
+}
+
+#endif
+
+#if ERTS_POLL_USE_KQUEUE || (ERTS_POLL_USE_POLL && defined(HAVE_PPOLL)) || ERTS_POLL_USE_TIMERFD
+
+static ERTS_INLINE int
+get_timeout_timespec(ErtsPollSet ps,
+		     struct timespec *tsp,
+		     ErtsMonotonicTime timeout_time)
+{
+    ErtsMonotonicTime timeout = get_timeout(ps,
+					    1000*1000*1000,
+					    timeout_time);
+
+    if (!timeout) {
+	tsp->tv_sec = 0;
+	tsp->tv_nsec = 0;
+	return 0;
+    }
+    else {
+	ErtsMonotonicTime sec = timeout/(1000*1000*1000);
+	tsp->tv_sec = sec;
+	tsp->tv_nsec = timeout - sec*(1000*1000*1000);
+
+	ASSERT(tsp->tv_sec >= 0);
+	ASSERT(tsp->tv_nsec >= 0);
+	ASSERT(tsp->tv_nsec < 1000*1000*1000);
+
+	return !0;
+    }
+}
+
+#endif
+
+#if ERTS_POLL_USE_TIMERFD
+
+static ERTS_INLINE int
+get_timeout_itimerspec(ErtsPollSet ps,
+                       struct itimerspec *itsp,
+                       ErtsMonotonicTime timeout_time)
+{
+
+    itsp->it_interval.tv_sec = 0;
+    itsp->it_interval.tv_nsec = 0;
+
+    return get_timeout_timespec(ps, &itsp->it_value, timeout_time);
+}
+
+#endif
+
 static ERTS_INLINE int
-check_fd_events(ErtsPollSet ps, SysTimeval *tv, int max_res)
+check_fd_events(ErtsPollSet ps, ErtsMonotonicTime timeout_time, int max_res)
 {
     int res;
     if (erts_smp_atomic_read_nob(&ps->no_of_user_fds) == 0
-	&& tv->tv_usec == 0 && tv->tv_sec == 0) {
+	&& timeout_time == ERTS_POLL_NO_TIMEOUT) {
 	/* Nothing to poll and zero timeout; done... */
 	return 0;
     }
     else {
-	long timeout = tv->tv_sec*1000 + tv->tv_usec/1000;
-	if (timeout > ERTS_AINT32_T_MAX)
-	    timeout = ERTS_AINT32_T_MAX;
-	ASSERT(timeout >= 0);
-	erts_smp_atomic32_set_relb(&ps->timeout, (erts_aint32_t) timeout);
+	int timeout;
 #if ERTS_POLL_USE_FALLBACK
 	if (!(ps->fallback_used = ERTS_POLL_NEED_FALLBACK(ps))) {
 
 #if ERTS_POLL_USE_EPOLL		/* --- epoll ------------------------------- */
-	    if (timeout > INT_MAX)
-		timeout = INT_MAX;
 	    if (max_res > ps->res_events_len)
 		grow_res_events(ps, max_res);
+#if ERTS_POLL_USE_TIMERFD
+            {
+                struct itimerspec its;
+                timeout = get_timeout_itimerspec(ps, &its, timeout_time);
+                if (timeout) {
+#ifdef ERTS_SMP
+                    erts_thr_progress_prepare_wait(NULL);
+#endif
+                    timerfd_set(ps, &its);
+                    res = epoll_wait(ps->kp_fd, ps->res_events, max_res, -1);
+                    res = timerfd_clear(ps, res, max_res);
+                } else {
+                    res = epoll_wait(ps->kp_fd, ps->res_events, max_res, 0);
+                }
+            }
+#else /* !ERTS_POLL_USE_TIMERFD */
+	    timeout = (int) get_timeout(ps, 1000, timeout_time);
 #ifdef ERTS_SMP
 	    if (timeout)
 		erts_thr_progress_prepare_wait(NULL);
 #endif
-	    res = epoll_wait(ps->kp_fd, ps->res_events, max_res, (int)timeout);
+	    res = epoll_wait(ps->kp_fd, ps->res_events, max_res, timeout);
+#endif /* !ERTS_POLL_USE_TIMERFD */
 #elif ERTS_POLL_USE_KQUEUE	/* --- kqueue ------------------------------ */
 	    struct timespec ts;
 	    if (max_res > ps->res_events_len)
 		grow_res_events(ps, max_res);
+	    timeout = get_timeout_timespec(ps, &ts, timeout_time);
 #ifdef ERTS_SMP
 	    if (timeout)
 		erts_thr_progress_prepare_wait(NULL);
 #endif
-	    ts.tv_sec = tv->tv_sec;
-	    ts.tv_nsec = tv->tv_usec*1000;
 	    res = kevent(ps->kp_fd, NULL, 0, ps->res_events, max_res, &ts);
 #endif				/* ----------------------------------------- */
 	}
@@ -2049,8 +2302,7 @@ check_fd_events(ErtsPollSet ps, SysTimeval *tv, int max_res)
 #if ERTS_POLL_USE_WAKEUP_PIPE
 	    nfds++; /* Wakeup pipe */
 #endif
-	    if (timeout > INT_MAX)
-		timeout = INT_MAX;
+	    timeout = (int) get_timeout(ps, 1000, timeout_time);
 	    poll_res.dp_nfds = nfds < max_res ? nfds : max_res;
 	    if (poll_res.dp_nfds > ps->res_events_len)
 		grow_res_events(ps, poll_res.dp_nfds);
@@ -2059,33 +2311,41 @@ check_fd_events(ErtsPollSet ps, SysTimeval *tv, int max_res)
 	    if (timeout)
 		erts_thr_progress_prepare_wait(NULL);
 #endif
-	    poll_res.dp_timeout = (int) timeout;
+	    poll_res.dp_timeout = timeout;
 	    res = ioctl(ps->kp_fd, DP_POLL, &poll_res);
-#elif ERTS_POLL_USE_POLL	/* --- poll -------------------------------- */
-	    if (timeout > INT_MAX)
-		timeout = INT_MAX;
+#elif ERTS_POLL_USE_POLL && defined(HAVE_PPOLL)	/* --- ppoll ---------------- */
+            struct timespec ts;
+	    timeout = get_timeout_timespec(ps, &ts, timeout_time);
+#ifdef ERTS_SMP
+	    if (timeout)
+		erts_thr_progress_prepare_wait(NULL);
+#endif
+            res = ppoll(ps->poll_fds, ps->no_poll_fds, &ts, NULL);
+#elif ERTS_POLL_USE_POLL        /* --- poll --------------------------------- */
+	    timeout = (int) get_timeout(ps, 1000, timeout_time);
 #ifdef ERTS_SMP
 	    if (timeout)
 		erts_thr_progress_prepare_wait(NULL);
 #endif
-	    res = poll(ps->poll_fds, ps->no_poll_fds, (int) timeout);
+	    res = poll(ps->poll_fds, ps->no_poll_fds, timeout);
 #elif ERTS_POLL_USE_SELECT	/* --- select ------------------------------ */
-	    SysTimeval to = *tv;
+	    SysTimeval to;
+	    timeout = get_timeout_timeval(ps, &to, timeout_time);
 
 	    ERTS_FD_COPY(&ps->input_fds, &ps->res_input_fds);
 	    ERTS_FD_COPY(&ps->output_fds, &ps->res_output_fds);
-	    
+
 #ifdef ERTS_SMP
-	    if (to.tv_sec || to.tv_usec)
+	    if (timeout)
 		erts_thr_progress_prepare_wait(NULL);
 #endif
 	    res = ERTS_SELECT(ps->max_fd + 1,
-			 &ps->res_input_fds,
-			 &ps->res_output_fds,
-			 NULL,
-			 &to);
+			      &ps->res_input_fds,
+			      &ps->res_output_fds,
+			      NULL,
+			      &to);
 #ifdef ERTS_SMP
-	    if (to.tv_sec || to.tv_usec)
+	    if (timeout)
 		erts_thr_progress_finalize_wait(NULL);
 	    if (res < 0
 		&& errno == EBADF
@@ -2108,10 +2368,10 @@ check_fd_events(ErtsPollSet ps, SysTimeval *tv, int max_res)
 		handle_update_requests(ps);
 		ERTS_POLLSET_UNLOCK(ps);
 		res = ERTS_SELECT(ps->max_fd + 1,
-			     &ps->res_input_fds,
-			     &ps->res_output_fds,
-			     NULL,
-			     &to);
+				  &ps->res_input_fds,
+				  &ps->res_output_fds,
+				  NULL,
+				  &to);
 		if (res == 0) {
 		    errno = EAGAIN;
 		    res = -1;
@@ -2133,15 +2393,14 @@ int
 ERTS_POLL_EXPORT(erts_poll_wait)(ErtsPollSet ps,
 				 ErtsPollResFd pr[],
 				 int *len,
-				 SysTimeval *utvp)
+				 ErtsMonotonicTime timeout_time)
 {
+    ErtsMonotonicTime to;
     int res, no_fds;
     int ebadf = 0;
 #ifdef ERTS_SMP
     int ps_locked = 0;
 #endif
-    SysTimeval *tvp;
-    SysTimeval itv;
 
     no_fds = *len;
 #ifdef ERTS_POLL_MAX_RES
@@ -2151,13 +2410,9 @@ ERTS_POLL_EXPORT(erts_poll_wait)(ErtsPollSet ps,
 
     *len = 0;
 
-    ASSERT(utvp);
-
-    tvp = utvp;
-
 #ifdef ERTS_POLL_DEBUG_PRINT
-    erts_printf("Entering erts_poll_wait(), timeout=%d\n",
-		 (int) tvp->tv_sec*1000 + tvp->tv_usec/1000);
+    erts_printf("Entering erts_poll_wait(), timeout_time=%bps\n",
+		timeout_time);
 #endif
 
     if (ERTS_POLLSET_SET_POLLED_CHK(ps)) {
@@ -2166,12 +2421,9 @@ ERTS_POLL_EXPORT(erts_poll_wait)(ErtsPollSet ps,
 	goto done;
     }
 
-    if (is_woken(ps)) {
-	/* Use zero timeout */
-	itv.tv_sec = 0;
-	itv.tv_usec = 0;
-	tvp = &itv;
-    }
+    to = (is_woken(ps)
+	  ? ERTS_POLL_NO_TIMEOUT /* Use zero timeout */
+	  : timeout_time);
 
 #if ERTS_POLL_USE_UPDATE_REQUESTS_QUEUE
     if (ERTS_POLLSET_HAVE_UPDATE_REQUESTS(ps)) {
@@ -2181,7 +2433,7 @@ ERTS_POLL_EXPORT(erts_poll_wait)(ErtsPollSet ps,
     }
 #endif
 
-    res = check_fd_events(ps, tvp, no_fds);
+    res = check_fd_events(ps, to, no_fds);
 
     woke_up(ps);
 
@@ -2224,7 +2476,7 @@ ERTS_POLL_EXPORT(erts_poll_wait)(ErtsPollSet ps,
 #endif
 
  done:
-    erts_smp_atomic32_set_relb(&ps->timeout, ERTS_AINT32_T_MAX);
+    set_timeout_time(ps, ERTS_MONOTONIC_TIME_MAX);
 #ifdef ERTS_POLL_DEBUG_PRINT
     erts_printf("Leaving %s = erts_poll_wait()\n",
 		 res == 0 ? "0" : erl_errno_id(res));
@@ -2268,13 +2520,14 @@ ERTS_POLL_EXPORT(erts_poll_async_sig_interrupt)(ErtsPollSet ps)
 void
 ERTS_POLL_EXPORT(erts_poll_interrupt_timed)(ErtsPollSet ps,
 					    int set,
-					    erts_short_time_t msec)
+					    ErtsMonotonicTime timeout_time)
 {
 #if ERTS_POLL_ASYNC_INTERRUPT_SUPPORT || defined(ERTS_SMP)
     if (!set)
 	reset_wakeup_state(ps);
     else {
-	if (erts_smp_atomic32_read_acqb(&ps->timeout) > (erts_aint32_t) msec)
+	ErtsMonotonicTime max_wait_time = get_timeout_time(ps);
+	if (max_wait_time > timeout_time)
 	    wake_poller(ps, 1, 0);
 #ifdef ERTS_POLL_COUNT_AVOIDED_WAKEUPS
 	else {
@@ -2414,6 +2667,9 @@ ERTS_POLL_EXPORT(erts_poll_create_pollset)(void)
 #if ERTS_POLL_USE_WAKEUP_PIPE
     create_wakeup_pipe(ps);
 #endif
+#if ERTS_POLL_USE_TIMERFD
+    create_timerfd(ps);
+#endif
 #if ERTS_POLL_USE_FALLBACK
     if (kp_fd >= ps->fds_status_len)
 	grow_fds_status(ps, kp_fd);
@@ -2431,7 +2687,7 @@ ERTS_POLL_EXPORT(erts_poll_create_pollset)(void)
 	ps->internal_fd_limit = kp_fd + 1;
     ps->kp_fd = kp_fd;
 #endif
-    erts_smp_atomic32_init_nob(&ps->timeout, ERTS_AINT32_T_MAX);
+    init_timeout_time(ps);
 #ifdef ERTS_POLL_COUNT_AVOIDED_WAKEUPS
     erts_smp_atomic_init_nob(&ps->no_avoided_wakeups, 0);
     erts_smp_atomic_init_nob(&ps->no_avoided_interrupts, 0);
@@ -2504,6 +2760,10 @@ ERTS_POLL_EXPORT(erts_poll_destroy_pollset)(ErtsPollSet ps)
     if (ps->wake_fds[1] >= 0)
 	close(ps->wake_fds[1]);
 #endif
+#if ERTS_POLL_USE_TIMERFD
+    if (ps->timer_fd >= 0)
+        close(ps->timer_fd);
+#endif
 
     erts_smp_spin_lock(&pollsets_lock);
     if (ps == pollsets)
@@ -2608,6 +2868,9 @@ ERTS_POLL_EXPORT(erts_poll_info)(ErtsPollSet ps, ErtsPollInfo *pip)
 #if ERTS_POLL_USE_WAKEUP_PIPE
     pip->poll_set_size++; /* Wakeup pipe */
 #endif
+#if ERTS_POLL_USE_TIMERFD
+    pip->poll_set_size++; /* timerfd */
+#endif
 
     pip->fallback_poll_set_size =
 #if !ERTS_POLL_USE_FALLBACK
@@ -2736,14 +2999,18 @@ ERTS_POLL_EXPORT(erts_poll_get_selected_events)(ErtsPollSet ps,
 	    ev[fd] = 0;
 	else {
 	    ev[fd] = ps->fds_status[fd].events;
+            if (
 #if ERTS_POLL_USE_WAKEUP_PIPE
-	    if (fd == ps->wake_fds[0] || fd == ps->wake_fds[1])
-		ev[fd] |= ERTS_POLL_EV_NVAL;
+                fd == ps->wake_fds[0] || fd == ps->wake_fds[1] ||
+#endif
+#if ERTS_POLL_USE_TIMERFD
+                fd == ps->timer_fd ||
 #endif
 #if ERTS_POLL_USE_KERNEL_POLL
-	    if (fd == ps->kp_fd)
-		ev[fd] |= ERTS_POLL_EV_NVAL;
+                fd == ps->kp_fd ||
 #endif
+                0)
+                ev[fd] |= ERTS_POLL_EV_NVAL;
 	}
     }
     ERTS_POLLSET_UNLOCK(ps);
diff --git a/erts/emulator/sys/common/erl_poll.h b/erts/emulator/sys/common/erl_poll.h
index 2f1c05f401..ae2d063805 100644
--- a/erts/emulator/sys/common/erl_poll.h
+++ b/erts/emulator/sys/common/erl_poll.h
@@ -29,6 +29,8 @@
 
 #include "sys.h"
 
+#define ERTS_POLL_NO_TIMEOUT ERTS_MONOTONIC_TIME_MIN
+
 #if 0
 #define ERTS_POLL_COUNT_AVOIDED_WAKEUPS
 #endif
@@ -96,6 +98,8 @@
 #  endif
 #endif
 
+#define ERTS_POLL_USE_TIMERFD 0
+
 typedef Uint32 ErtsPollEvents;
 #undef ERTS_POLL_EV_E2N
 
@@ -128,6 +132,12 @@ struct erts_sys_fd_type {
 
 #include <sys/epoll.h>
 
+#ifdef HAVE_SYS_TIMERFD_H
+#include <sys/timerfd.h>
+#undef ERTS_POLL_USE_TIMERFD
+#define ERTS_POLL_USE_TIMERFD 1
+#endif
+
 #define ERTS_POLL_EV_E2N(EV) \
   ((__uint32_t) (EV))
 #define ERTS_POLL_EV_N2E(EV) \
@@ -241,7 +251,7 @@ void		ERTS_POLL_EXPORT(erts_poll_interrupt)(ErtsPollSet,
 						      int);
 void		ERTS_POLL_EXPORT(erts_poll_interrupt_timed)(ErtsPollSet,
 							    int,
-							    erts_short_time_t);
+							    ErtsMonotonicTime);
 ErtsPollEvents	ERTS_POLL_EXPORT(erts_poll_control)(ErtsPollSet,
 						    ErtsSysFdType,
 						    ErtsPollEvents,
@@ -254,7 +264,7 @@ void		ERTS_POLL_EXPORT(erts_poll_controlv)(ErtsPollSet,
 int		ERTS_POLL_EXPORT(erts_poll_wait)(ErtsPollSet,
 						 ErtsPollResFd [],
 						 int *,
-						 SysTimeval *);
+						 ErtsMonotonicTime);
 int		ERTS_POLL_EXPORT(erts_poll_max_fds)(void);
 void		ERTS_POLL_EXPORT(erts_poll_info)(ErtsPollSet,
 						 ErtsPollInfo *);
diff --git a/erts/emulator/sys/ose/erl_ose_sys.h b/erts/emulator/sys/ose/erl_ose_sys.h
index cd66d95c26..f6526a4714 100644
--- a/erts/emulator/sys/ose/erl_ose_sys.h
+++ b/erts/emulator/sys/ose/erl_ose_sys.h
@@ -112,6 +112,8 @@ extern clock_t sys_times(SysTimes *buffer);
 /* No use in having other resolutions than 1 Ms. */
 #define SYS_CLOCK_RESOLUTION 1
 
+#define erts_isfinite finite
+
 #ifdef NO_FPE_SIGNALS
 
 #define erts_get_current_fp_exception() NULL
diff --git a/erts/emulator/sys/ose/erl_poll.c b/erts/emulator/sys/ose/erl_poll.c
index 7d2a3d1e0b..3d4ac0365f 100644
--- a/erts/emulator/sys/ose/erl_poll.c
+++ b/erts/emulator/sys/ose/erl_poll.c
@@ -114,7 +114,7 @@ struct ErtsPollSet_ {
     Uint item_count;
     PROCESS interrupt;
     erts_atomic32_t wakeup_state;
-    erts_smp_atomic32_t timeout;
+    erts_atomic64_t timeout_time;
 #ifdef ERTS_SMP
     erts_smp_mtx_t mtx;
 #endif
@@ -122,6 +122,26 @@ struct ErtsPollSet_ {
 
 static int max_fds = -1;
 
+static ERTS_INLINE void
+init_timeout_time(ErtsPollSet ps)
+{
+    erts_atomic64_init_nob(&ps->timeout_time,
+			   (erts_aint64_t) ERTS_MONOTONIC_TIME_MAX);
+}
+
+static ERTS_INLINE void
+set_timeout_time(ErtsPollSet ps, ErtsMonotonicTime time)
+{
+    erts_atomic64_set_relb(&ps->timeout_time,
+			   (erts_aint64_t) time);
+}
+
+static ERTS_INLINE ErtsMonotonicTime
+get_timeout_time(ErtsPollSet ps)
+{
+    return (ErtsMonotonicTime) erts_atomic64_read_acqb(&ps->timeout_time);
+}
+
 #define ERTS_POLL_NOT_WOKEN		((erts_aint32_t) (1 << 0))
 #define ERTS_POLL_WOKEN_INTR		((erts_aint32_t) (1 << 1))
 #define ERTS_POLL_WOKEN_TIMEDOUT	((erts_aint32_t) (1 << 2))
@@ -386,12 +406,14 @@ void erts_poll_interrupt(ErtsPollSet ps,int set) {
 
 }
 
-void erts_poll_interrupt_timed(ErtsPollSet ps,int set,erts_short_time_t msec) {
+void erts_poll_interrupt_timed(ErtsPollSet ps,
+			       int set,
+			       ErtsTimeoutTime timeout_time) {
     HARDTRACEF("erts_poll_interrupt_timed called!\n");
 
     if (!set)
 	reset_interrupt(ps);
-    else if (erts_smp_atomic32_read_acqb(&ps->timeout) > (erts_aint32_t) msec)
+    else if (get_timeout_time(ps) > timeout_time)
         set_interrupt(ps);
 }
 
@@ -453,12 +475,14 @@ done:
 }
 
 int erts_poll_wait(ErtsPollSet ps,
-	   ErtsPollResFd pr[],
-	   int *len,
-	   SysTimeval *utvp) {
+		   ErtsPollResFd pr[],
+		   int *len,
+		   ErtsMonotonicTime timeout_time)
+{
     int res = ETIMEDOUT, no_fds, currid = 0;
     OSTIME timeout;
     union SIGNAL *sig;
+    ErtsMonotonicTime current_time, diff_time, timeout;
     // HARDTRACEF("%ux: In erts_poll_wait",ps);
     if (ps->interrupt == (PROCESS)0)
       ps->interrupt = current_process();
@@ -472,16 +496,29 @@ int erts_poll_wait(ErtsPollSet ps,
 
     *len = 0;
 
-    ASSERT(utvp);
+    /* erts_printf("Entering erts_poll_wait(), timeout_time=%bps\n",
+		   timeout_time); */
 
-    /* erts_printf("Entering erts_poll_wait(), timeout=%d\n",
-		 (int) utvp->tv_sec*1000 + utvp->tv_usec/1000); */
-
-    timeout = utvp->tv_sec*1000 + utvp->tv_usec/1000;
+    if (timeout_time == ERTS_POLL_NO_TIMEOUT) {
+    no_timeout:
+	timeout = (OSTIME) 0;
+	save_timeout_time = ERTS_MONOTONIC_TIME_MIN;
+    }
+    else {
+	ErtsMonotonicTime current_time, diff_time;
+	current_time = erts_get_monotonic_time(NULL);
+	diff_time = timeout_time - current_time;
+	if (diff_time <= 0)
+	    goto no_timeout;
+	diff_time = (ERTS_MONOTONIC_TO_MSEC(diff_time - 1) + 1);
+	if (diff_time > INT_MAX)
+	    diff_time = INT_MAX;
+	timeout = (OSTIME) diff_time;
+	save_timeout_time = current_time;
+	save_timeout_time += ERTS_MSEC_TO_MONOTONIC(diff_time);
+    }
 
-    if (timeout > ((time_t) ERTS_AINT32_T_MAX))
-      timeout = ERTS_AINT32_T_MAX;
-    erts_smp_atomic32_set_relb(&ps->timeout, (erts_aint32_t) timeout);
+    set_timeout_time(ps, save_timeout_time);
 
     while (currid < no_fds) {
       if (timeout > 0) {
@@ -627,7 +664,7 @@ int erts_poll_wait(ErtsPollSet ps,
     }
 
     erts_atomic32_set_nob(&ps->wakeup_state, ERTS_POLL_NOT_WOKEN);
-    erts_smp_atomic32_set_nob(&ps->timeout, ERTS_AINT32_T_MAX);
+    set_timeout_time(ps, ERTS_MONOTONIC_TIME_MAX);
 
     *len = currid;
 
@@ -690,7 +727,7 @@ ErtsPollSet erts_poll_create_pollset(void)
     ps->info       = NULL;
     ps->interrupt  = (PROCESS)0;
     erts_atomic32_init_nob(&ps->wakeup_state, ERTS_POLL_NOT_WOKEN);
-    erts_smp_atomic32_init_nob(&ps->timeout, ERTS_AINT32_T_MAX);
+    init_timeout_time(ps);
 #ifdef ERTS_SMP
     erts_smp_mtx_init(&ps->mtx, "pollset");
 #endif
diff --git a/erts/emulator/sys/ose/sys.c b/erts/emulator/sys/ose/sys.c
index 5b950a7dae..13a5b71496 100644
--- a/erts/emulator/sys/ose/sys.c
+++ b/erts/emulator/sys/ose/sys.c
@@ -298,9 +298,9 @@ erts_sys_schedule_interrupt(int set)
 
 #ifdef ERTS_SMP
 void
-erts_sys_schedule_interrupt_timed(int set, erts_short_time_t msec)
+erts_sys_schedule_interrupt_timed(int set, ErtsMonotonicTime timeout_time)
 {
-    ERTS_CHK_IO_INTR_TMD(set, msec);
+    ERTS_CHK_IO_INTR_TMD(set, timeout_time);
 }
 #endif
 
diff --git a/erts/emulator/sys/unix/erl_child_setup.c b/erts/emulator/sys/unix/erl_child_setup.c
index 5ad92dad02..d050748703 100644
--- a/erts/emulator/sys/unix/erl_child_setup.c
+++ b/erts/emulator/sys/unix/erl_child_setup.c
@@ -55,7 +55,7 @@ void sys_sigrelease(int sig)
 #endif /* !SIG_SIGSET */
 
 #if defined(__ANDROID__)
-int __system_properties_fd(void);
+static int system_properties_fd(void);
 #endif /* __ANDROID__ */
 
 #if defined(__ANDROID__)
@@ -104,9 +104,12 @@ main(int argc, char *argv[])
 #if defined(HAVE_CLOSEFROM)
     closefrom(from);
 #elif defined(__ANDROID__)
-    for (i = from; i <= to; i++) {
-	if (i!=__system_properties_fd)
-	    (void) close(i);
+    if (from <= to) {
+	int spfd = system_properties_fd();
+	for (i = from; i <= to; i++) {
+	    if (i != spfd)
+		(void) close(i);
+	}
     }
 #else
     for (i = from; i <= to; i++)
@@ -143,9 +146,9 @@ main(int argc, char *argv[])
 }
 
 #if defined(__ANDROID__)
-int __system_properties_fd(void)
+static int system_properties_fd(void)
 {
-    int s, fd;
+    int fd;
     char *env;
 
     env = getenv("ANDROID_PROPERTY_WORKSPACE");
@@ -156,4 +159,3 @@ int __system_properties_fd(void)
     return fd;
 }
 #endif /* __ANDROID__ */
-
diff --git a/erts/emulator/sys/unix/erl_unix_sys.h b/erts/emulator/sys/unix/erl_unix_sys.h
index 26ed2fb558..1942b631fc 100644
--- a/erts/emulator/sys/unix/erl_unix_sys.h
+++ b/erts/emulator/sys/unix/erl_unix_sys.h
@@ -45,7 +45,7 @@
 #include <fcntl.h>
 #include "erl_errno.h"
 #include <signal.h>
-
+#include <setjmp.h>
 
 #if HAVE_SYS_SOCKETIO_H
 #   include <sys/socketio.h>
@@ -114,11 +114,6 @@
 /*
  * Make sure that MAXPATHLEN is defined.
  */
-#ifdef GETHRTIME_WITH_CLOCK_GETTIME
-#undef HAVE_GETHRTIME
-#define HAVE_GETHRTIME 1
-#endif
-
 #ifndef MAXPATHLEN
 #   ifdef PATH_MAX
 #       define MAXPATHLEN PATH_MAX
@@ -160,35 +155,134 @@ typedef struct timeval SysTimeval;
 
 typedef struct tms SysTimes;
 
-extern int erts_ticks_per_sec;
-
-#define SYS_CLK_TCK (erts_ticks_per_sec)
+#define SYS_CLK_TCK (erts_sys_time_data__.r.o.ticks_per_sec)
 
 #define sys_times(Arg) times(Arg)
 
-#define ERTS_WRAP_SYS_TIMES 1
-extern int erts_ticks_per_sec_wrap;
-#define SYS_CLK_TCK_WRAP (erts_ticks_per_sec_wrap)
-extern clock_t sys_times_wrap(void);
+#if SIZEOF_LONG == 8
+typedef long ErtsMonotonicTime;
+typedef long ErtsSysHrTime;
+#elif SIZEOF_LONG_LONG == 8
+typedef long long ErtsMonotonicTime;
+typedef long long ErtsSysHrTime;
+#else
+#error No signed 64-bit type found...
+#endif
+
+typedef ErtsMonotonicTime ErtsSystemTime;
+
+#define ERTS_MONOTONIC_TIME_MIN (((ErtsMonotonicTime) 1) << 63)
+#define ERTS_MONOTONIC_TIME_MAX (~ERTS_MONOTONIC_TIME_MIN)
+
+/*
+ * OS monotonic time and OS system time
+ */
+#undef ERTS_OS_TIMES_INLINE_FUNC_PTR_CALL__
+
+#if defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME) \
+    && defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME)
+#  if defined(__linux__)
+#    define ERTS_OS_TIMES_INLINE_FUNC_PTR_CALL__ 1
+#  endif
+#endif
+
+ErtsSystemTime erts_os_system_time(void);
+
+#undef ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT
+#undef ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT
+#undef ERTS_OS_MONOTONIC_INLINE_FUNC_PTR_CALL__
+
+#if defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME)
+#  define ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT 1
+#  define ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT (1000*1000*1000)
+#  if defined(__linux__)
+#    define ERTS_OS_MONOTONIC_INLINE_FUNC_PTR_CALL__ 1
+#  endif
+#elif defined(OS_MONOTONIC_TIME_USING_MACH_CLOCK_GET_TIME)
+#  define ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT 1
+#  define ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT (1000*1000*1000)
+#elif defined(OS_MONOTONIC_TIME_USING_GETHRTIME)
+#  define ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT 1
+#  define ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT (1000*1000*1000)
+#elif defined(OS_MONOTONIC_TIME_USING_TIMES)
+#  define ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT 1
+/* Time unit determined at runtime... */
+#  define ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT 0
+#else /* No OS monotonic available... */
+#  define ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT (1000*1000)
+#endif
+
+/*
+ * erts_sys_hrtime() is the highest resolution
+ * time function found. Time unit is nano-seconds.
+ * It may or may not be monotonic.
+ */
+ErtsSysHrTime erts_sys_hrtime(void);
+
+struct erts_sys_time_read_only_data__ {
+#ifdef ERTS_OS_MONOTONIC_INLINE_FUNC_PTR_CALL__
+    ErtsMonotonicTime (*os_monotonic_time)(void);
+#endif
+#ifdef ERTS_OS_TIMES_INLINE_FUNC_PTR_CALL__
+    void (*os_times)(ErtsMonotonicTime *, ErtsSystemTime *);
+#endif
+    int ticks_per_sec;
+};
+
+typedef struct {
+    union {
+	struct erts_sys_time_read_only_data__ o;
+	char align__[(((sizeof(struct erts_sys_time_read_only_data__) - 1)
+		       / ASSUMED_CACHE_LINE_SIZE) + 1)
+		     * ASSUMED_CACHE_LINE_SIZE];
+    } r;
+} ErtsSysTimeData__;
+
+extern ErtsSysTimeData__ erts_sys_time_data__;
 
-#ifdef HAVE_GETHRTIME
-#ifdef GETHRTIME_WITH_CLOCK_GETTIME
-typedef long long SysHrTime;
+#ifdef ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT
 
-extern SysHrTime sys_gethrtime(void);
-#define sys_init_hrtime() /* Nothing */
+#ifdef ERTS_OS_MONOTONIC_INLINE_FUNC_PTR_CALL__
+ERTS_GLB_INLINE
+#endif
+ErtsMonotonicTime erts_os_monotonic_time(void);
 
-#else /* Real gethrtime (Solaris) */
+#ifdef ERTS_OS_TIMES_INLINE_FUNC_PTR_CALL__
+ERTS_GLB_INLINE
+#endif
+void erts_os_times(ErtsMonotonicTime *, ErtsSystemTime *);
 
-typedef hrtime_t SysHrTime;
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+#ifdef ERTS_OS_MONOTONIC_INLINE_FUNC_PTR_CALL__
+
+ERTS_GLB_INLINE ErtsMonotonicTime
+erts_os_monotonic_time(void)
+{
+    return (*erts_sys_time_data__.r.o.os_monotonic_time)();
+}
+
+#endif /* ERTS_OS_MONOTONIC_INLINE_FUNC_PTR_CALL__ */
+
+#ifdef ERTS_OS_TIMES_INLINE_FUNC_PTR_CALL__
+
+ERTS_GLB_INLINE void
+erts_os_times(ErtsMonotonicTime *mtimep, ErtsSystemTime *stimep)
+{
+    return (*erts_sys_time_data__.r.o.os_times)(mtimep, stimep);
+}
 
-#define sys_gethrtime() gethrtime()
-#define sys_init_hrtime() /* Nothing */
+#endif /* ERTS_OS_TIMES_INLINE_FUNC_PTR_CALL__ */
 
-#endif /* GETHRTIME_WITH_CLOCK_GETTIME */
-#endif /* HAVE_GETHRTIME */
+#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
 
-#if (defined(HAVE_GETHRVTIME) || defined(HAVE_CLOCK_GETTIME))
+#endif /* ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT */
+
+/*
+ *
+ */
+
+#if (defined(HAVE_GETHRVTIME) || defined(HAVE_CLOCK_GETTIME_CPU_TIME))
 typedef long long SysCpuTime;
 typedef struct timespec SysTimespec;
 
@@ -200,7 +294,7 @@ typedef struct timespec SysTimespec;
 int sys_start_hrvtime(void);
 int sys_stop_hrvtime(void);
 
-#elif defined(HAVE_CLOCK_GETTIME)
+#elif defined(HAVE_CLOCK_GETTIME_CPU_TIME)
 #define sys_clock_gettime(cid,tp) clock_gettime((cid),&(tp))
 #define sys_get_proc_cputime(t,tp) sys_clock_gettime(CLOCK_PROCESS_CPUTIME_ID,(tp))
 
@@ -211,13 +305,8 @@ int sys_stop_hrvtime(void);
 #define SYS_CLOCK_RESOLUTION 1
 
 /* These are defined in sys.c */
-#if defined(SIG_SIGSET)		/* Old SysV */
-RETSIGTYPE (*sys_sigset())();
-#elif defined(SIG_SIGNAL)	/* Old BSD */
-RETSIGTYPE (*sys_sigset())();
-#else
-RETSIGTYPE (*sys_sigset(int, RETSIGTYPE (*func)(int)))(int);
-#endif
+typedef void (*SIGFUNC)(int);
+extern SIGFUNC sys_signal(int, SIGFUNC);
 extern void sys_sigrelease(int);
 extern void sys_sigblock(int);
 extern void sys_stop_cat(void);
@@ -247,6 +336,8 @@ extern void sys_stop_cat(void);
 #  define HAVE_ISFINITE
 #endif
 
+#define erts_isfinite isfinite
+
 #ifdef NO_FPE_SIGNALS
 
 #define erts_get_current_fp_exception() NULL
@@ -354,4 +445,28 @@ extern int exit_async(void);
 
 #define ERTS_EXIT_AFTER_DUMP _exit
 
+#if !defined(__APPLE__) && !defined(__MACH__)
+/* Some OS X versions do not allow (ab)using signal handlers like this */
+#define ERTS_HAVE_TRY_CATCH 1
+
+/* We try to simulate a try catch in C with the help of signal handlers.
+ * Only use this as a very last resort, as it is not very portable and
+ * quite unstable. It is also not thread safe, so make sure that only
+ * one thread can call this at a time!
+ */
+extern void erts_sys_sigsegv_handler(int);
+extern jmp_buf erts_sys_sigsegv_jmp;
+#define ERTS_SYS_TRY_CATCH(EXPR,CATCH)                                  \
+    do {                                                                \
+        SIGFUNC prev_handler = sys_signal(SIGSEGV,                      \
+                                          erts_sys_sigsegv_handler);    \
+        if (!setjmp(erts_sys_sigsegv_jmp)) {                            \
+            EXPR;                                                       \
+        } else {                                                        \
+            CATCH;                                                      \
+        }                                                               \
+        sys_signal(SIGSEGV,prev_handler);                               \
+    } while(0)
+#endif
+
 #endif /* #ifndef _ERL_UNIX_SYS_H */
diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c
index cd87b320e2..7d52650a70 100644
--- a/erts/emulator/sys/unix/sys.c
+++ b/erts/emulator/sys/unix/sys.c
@@ -34,6 +34,7 @@
 #include <termios.h>
 #include <ctype.h>
 #include <sys/utsname.h>
+#include <sys/select.h>
 
 #ifdef ISC32
 #include <sys/bsdtypes.h>
@@ -85,14 +86,24 @@ static erts_smp_rwmtx_t environ_rwmtx;
 #define DISABLE_VFORK 0
 #endif
 
+#if defined IOV_MAX
+#define MAXIOV IOV_MAX
+#elif defined UIO_MAXIOV
+#define MAXIOV UIO_MAXIOV
+#else
+#define MAXIOV 16
+#endif
+
 #ifdef USE_THREADS
 #  ifdef ENABLE_CHILD_WAITER_THREAD
 #    define CHLDWTHR ENABLE_CHILD_WAITER_THREAD
 #  else
 #    define CHLDWTHR 0
 #  endif
+#  define FDBLOCK 1
 #else
 #  define CHLDWTHR 0
+#  define FDBLOCK 0
 #endif
 /*
  * [OTP-3906]
@@ -121,6 +132,15 @@ struct ErtsSysReportExit_ {
 #endif
 };
 
+/* Used by the fd driver iff the fd could not be set to non-blocking */
+typedef struct ErtsSysBlocking_ {
+    ErlDrvPDL pdl;
+    int res;
+    int err;
+    unsigned int pkey;
+} ErtsSysBlocking;
+
+
 /* This data is shared by these drivers - initialized by spawn_init() */
 static struct driver_data {
     ErlDrvPort port_num;
@@ -129,6 +149,8 @@ static struct driver_data {
     int pid;
     int alive;
     int status;
+    int terminating;
+    ErtsSysBlocking *blocking;
 } *driver_data;			/* indexed by fd */
 
 static ErtsSysReportExit *report_exit_list;
@@ -202,8 +224,14 @@ static erts_smp_atomic_t sys_misc_mem_sz;
 #if defined(ERTS_SMP)
 static void smp_sig_notify(char c);
 static int sig_notify_fds[2] = {-1, -1};
+
+static int sig_suspend_fds[2] = {-1, -1};
+#define ERTS_SYS_SUSPEND_SIGNAL SIGUSR2
+
 #endif
 
+jmp_buf erts_sys_sigsegv_jmp;
+
 #if CHLDWTHR || defined(ERTS_SMP)
 erts_mtx_t chld_stat_mtx;
 #endif
@@ -280,7 +308,7 @@ struct {
     int (*event)(ErlDrvPort, ErlDrvEvent, ErlDrvEventData);
     void (*check_io_as_interrupt)(void);
     void (*check_io_interrupt)(int);
-    void (*check_io_interrupt_tmd)(int, erts_short_time_t);
+    void (*check_io_interrupt_tmd)(int, ErtsMonotonicTime);
     void (*check_io)(int);
     Uint (*size)(void);
     Eterm (*info)(void *);
@@ -386,9 +414,9 @@ erts_sys_schedule_interrupt(int set)
 
 #ifdef ERTS_SMP
 void
-erts_sys_schedule_interrupt_timed(int set, erts_short_time_t msec)
+erts_sys_schedule_interrupt_timed(int set, ErtsMonotonicTime timeout_time)
 {
-    ERTS_CHK_IO_INTR_TMD(set, msec);
+    ERTS_CHK_IO_INTR_TMD(set, timeout_time);
 }
 #endif
 
@@ -504,11 +532,14 @@ thr_create_prepare_child(void *vtcdp)
 void
 erts_sys_pre_init(void)
 {
+#ifdef USE_THREADS
+    erts_thr_init_data_t eid = ERTS_THR_INIT_DATA_DEF_INITER;
+#endif
+
     erts_printf_add_cr_to_stdout = 1;
     erts_printf_add_cr_to_stderr = 1;
+
 #ifdef USE_THREADS
-    {
-    erts_thr_init_data_t eid = ERTS_THR_INIT_DATA_DEF_INITER;
 
     eid.thread_create_child_func = thr_create_prepare_child;
     /* Before creation in parent */
@@ -531,6 +562,12 @@ erts_sys_pre_init(void)
     erts_lcnt_init();
 #endif
 
+#endif /* USE_THREADS */
+
+    erts_init_sys_time_sup();
+
+#ifdef USE_THREADS
+
 #if CHLDWTHR || defined(ERTS_SMP)
     erts_mtx_init(&chld_stat_mtx, "child_status");
 #endif
@@ -541,7 +578,7 @@ erts_sys_pre_init(void)
     erts_cnd_init(&chld_stat_cnd);
     children_alive = 0;
 #endif
-    }
+
 #ifdef ERTS_SMP
     erts_smp_atomic32_init_nob(&erts_break_requested, 0);
     erts_smp_atomic32_init_nob(&erts_got_sigusr1, 0);
@@ -554,7 +591,9 @@ erts_sys_pre_init(void)
 #if !CHLDWTHR && !defined(ERTS_SMP)
     children_died = 0;
 #endif
+
 #endif /* USE_THREADS */
+
     erts_smp_atomic_init_nob(&sys_misc_mem_sz, 0);
 
     {
@@ -640,39 +679,7 @@ erl_sys_init(void)
 
 /* signal handling */
 
-#ifdef SIG_SIGSET		/* Old SysV */
-RETSIGTYPE (*sys_sigset(sig, func))()
-int sig;
-RETSIGTYPE (*func)();
-{
-    return(sigset(sig, func));
-}
-void sys_sigblock(int sig)
-{
-    sighold(sig);
-}
-void sys_sigrelease(int sig)
-{
-    sigrelse(sig);
-}
-#else /* !SIG_SIGSET */
-#ifdef SIG_SIGNAL		/* Old BSD */
-RETSIGTYPE (*sys_sigset(sig, func))(int, int)
-int sig;
-RETSIGTYPE (*func)();
-{
-    return(signal(sig, func));
-}
-sys_sigblock(int sig)
-{
-    sigblock(sig);
-}
-sys_sigrelease(int sig)
-{
-    sigsetmask(sigblock(0) & ~sigmask(sig));
-}
-#else /* !SIG_SIGNAL */	/* The True Way - POSIX!:-) */
-RETSIGTYPE (*sys_sigset(int sig, RETSIGTYPE (*func)(int)))(int)
+SIGFUNC sys_signal(int sig, SIGFUNC func)
 {
     struct sigaction act, oact;
 
@@ -705,23 +712,35 @@ void sys_sigrelease(int sig)
     sigaddset(&mask, sig);
     sigprocmask(SIG_UNBLOCK, &mask, (sigset_t *)NULL);
 }
-#endif /* !SIG_SIGNAL */
-#endif /* !SIG_SIGSET */
 
-#if (0) /* not used? -- gordon */
-static void (*break_func)();
-static RETSIGTYPE break_handler(int sig)
-{
-#ifdef QNX
-    /* Turn off SIGCHLD during break processing */
-    sys_sigblock(SIGCHLD);
-#endif
-    (*break_func)();
-#ifdef QNX
-    sys_sigrelease(SIGCHLD);
-#endif
+void erts_sys_sigsegv_handler(int signo) {
+    if (signo == SIGSEGV) {
+        longjmp(erts_sys_sigsegv_jmp, 1);
+    }
+}
+
+/*
+ * Function returns 1 if we can read from all values in between
+ * start and stop.
+ */
+int
+erts_sys_is_area_readable(char *start, char *stop) {
+    int fds[2];
+    if (!pipe(fds)) {
+        /* We let write try to figure out if the pointers are readable */
+        int res = write(fds[1], start, (char*)stop - (char*)start);
+        if (res == -1) {
+            close(fds[0]);
+            close(fds[1]);
+            return 0;
+        }
+        close(fds[0]);
+        close(fds[1]);
+        return 1;
+    }
+    return 0;
+
 }
-#endif /* 0 */
 
 static ERTS_INLINE int
 prepare_crash_dump(int secs)
@@ -849,9 +868,23 @@ sigusr1_exit(void)
 
 #ifdef ETHR_UNUSABLE_SIGUSRX
 #warning "Unusable SIGUSR1 & SIGUSR2. Disabling use of these signals"
-#endif
 
-#ifndef ETHR_UNUSABLE_SIGUSRX
+#else
+
+#ifdef ERTS_SMP
+void
+sys_thr_suspend(erts_tid_t tid) {
+    erts_thr_kill(tid, ERTS_SYS_SUSPEND_SIGNAL);
+}
+
+void
+sys_thr_resume(erts_tid_t tid) {
+    int i = 0, res;
+    do {
+        res = write(sig_suspend_fds[1],&i,sizeof(i));
+    } while (res < 0 && errno == EAGAIN);
+}
+#endif
 
 #if (defined(SIG_SIGSET) || defined(SIG_SIGNAL))
 static RETSIGTYPE user_signal1(void)
@@ -866,20 +899,20 @@ static RETSIGTYPE user_signal1(int signum)
 #endif
 }
 
-#ifdef QUANTIFY
+#ifdef ERTS_SMP
 #if (defined(SIG_SIGSET) || defined(SIG_SIGNAL))
-static RETSIGTYPE user_signal2(void)
+static RETSIGTYPE suspend_signal(void)
 #else
-static RETSIGTYPE user_signal2(int signum)
+static RETSIGTYPE suspend_signal(int signum)
 #endif
 {
-#ifdef ERTS_SMP
-   smp_sig_notify('2');
-#else
-   quantify_save_data();
-#endif
+   int res;
+   int buf[1];
+   do {
+     res = read(sig_suspend_fds[0], buf, sizeof(int));
+   } while (res < 0 && errno == EINTR);
 }
-#endif
+#endif /* #ifdef ERTS_SMP */
 
 #endif /* #ifndef ETHR_UNUSABLE_SIGUSRX */
 
@@ -904,9 +937,9 @@ static RETSIGTYPE do_quit(int signum)
 
 /* Disable break */
 void erts_set_ignore_break(void) {
-    sys_sigset(SIGINT,  SIG_IGN);
-    sys_sigset(SIGQUIT, SIG_IGN);
-    sys_sigset(SIGTSTP, SIG_IGN);
+    sys_signal(SIGINT,  SIG_IGN);
+    sys_signal(SIGQUIT, SIG_IGN);
+    sys_signal(SIGTSTP, SIG_IGN);
 }
 
 /* Don't use ctrl-c for break handler but let it be 
@@ -929,14 +962,14 @@ void erts_replace_intr(void) {
 
 void init_break_handler(void)
 {
-   sys_sigset(SIGINT, request_break);
+   sys_signal(SIGINT, request_break);
 #ifndef ETHR_UNUSABLE_SIGUSRX
-   sys_sigset(SIGUSR1, user_signal1);
-#ifdef QUANTIFY
-   sys_sigset(SIGUSR2, user_signal2);
-#endif
+   sys_signal(SIGUSR1, user_signal1);
+#ifdef ERTS_SMP
+   sys_signal(ERTS_SYS_SUSPEND_SIGNAL, suspend_signal);
+#endif /* #ifdef ERTS_SMP */
 #endif /* #ifndef ETHR_UNUSABLE_SIGUSRX */
-   sys_sigset(SIGQUIT, do_quit);
+   sys_signal(SIGQUIT, do_quit);
 }
 
 int sys_max_files(void)
@@ -953,8 +986,13 @@ static void block_signals(void)
    sys_sigblock(SIGINT);
 #ifndef ETHR_UNUSABLE_SIGUSRX
    sys_sigblock(SIGUSR1);
+#endif /* #ifndef ETHR_UNUSABLE_SIGUSRX */
+#endif /* #ifndef ERTS_SMP */
+
+#if defined(ERTS_SMP) && !defined(ETHR_UNUSABLE_SIGUSRX)
+   sys_sigblock(ERTS_SYS_SUSPEND_SIGNAL);
 #endif
-#endif
+
 }
 
 static void unblock_signals(void)
@@ -968,26 +1006,13 @@ static void unblock_signals(void)
 #ifndef ETHR_UNUSABLE_SIGUSRX
    sys_sigrelease(SIGUSR1);
 #endif /* #ifndef ETHR_UNUSABLE_SIGUSRX */
+#endif /* #ifndef ERTS_SMP */
+
+#if defined(ERTS_SMP) && !defined(ETHR_UNUSABLE_SIGUSRX)
+   sys_sigrelease(ERTS_SYS_SUSPEND_SIGNAL);
 #endif
-}
-/************************** Time stuff **************************/
-#ifdef HAVE_GETHRTIME
-#ifdef GETHRTIME_WITH_CLOCK_GETTIME
 
-SysHrTime sys_gethrtime(void)
-{
-    struct timespec ts;
-    long long result;
-    if (clock_gettime(CLOCK_MONOTONIC,&ts) != 0) {
-	erl_exit(1,"Fatal, could not get clock_monotonic value!, "
-		 "errno = %d\n", errno);
-    }
-    result = ((long long) ts.tv_sec) * 1000000000LL + 
-	((long long) ts.tv_nsec);
-    return (SysHrTime) result;
 }
-#endif
-#endif
 
 /************************** OS info *******************************/
 
@@ -1094,11 +1119,16 @@ void fini_getenv_state(GETENV_STATE *state)
 /* Driver interfaces */
 static ErlDrvData spawn_start(ErlDrvPort, char*, SysDriverOpts*);
 static ErlDrvData fd_start(ErlDrvPort, char*, SysDriverOpts*);
+#if FDBLOCK
+static void fd_async(void *);
+static void fd_ready_async(ErlDrvData drv_data, ErlDrvThreadData thread_data);
+#endif
 static ErlDrvSSizeT fd_control(ErlDrvData, unsigned int, char *, ErlDrvSizeT,
 			       char **, ErlDrvSizeT);
 static ErlDrvData vanilla_start(ErlDrvPort, char*, SysDriverOpts*);
 static int spawn_init(void);
 static void fd_stop(ErlDrvData);
+static void fd_flush(ErlDrvData);
 static void stop(ErlDrvData);
 static void ready_input(ErlDrvData, ErlDrvEvent);
 static void ready_output(ErlDrvData, ErlDrvEvent);
@@ -1143,8 +1173,12 @@ struct erl_drv_entry fd_driver_entry = {
     fd_control,
     NULL,
     outputv,
-    NULL, /* ready_async */
-    NULL, /* flush */
+#if FDBLOCK
+    fd_ready_async, /* ready_async */
+#else
+    NULL,
+#endif
+    fd_flush, /* flush */
     NULL, /* call */
     NULL, /* event */
     ERL_DRV_EXTENDED_MARKER,
@@ -1198,13 +1232,28 @@ static RETSIGTYPE onchld(int signum)
 #endif
 }
 
+static int set_blocking_data(struct driver_data *dd) {
+
+    dd->blocking = erts_alloc(ERTS_ALC_T_SYS_BLOCKING, sizeof(ErtsSysBlocking));
+
+    erts_smp_atomic_add_nob(&sys_misc_mem_sz, sizeof(ErtsSysBlocking));
+
+    dd->blocking->pdl = driver_pdl_create(dd->port_num);
+    dd->blocking->res = 0;
+    dd->blocking->err = 0;
+    dd->blocking->pkey = driver_async_port_key(dd->port_num);
+
+    return 1;
+}
+
 static int set_driver_data(ErlDrvPort port_num,
 			   int ifd,
 			   int ofd,
 			   int packet_bytes,
 			   int read_write,
 			   int exit_status,
-			   int pid)
+			   int pid,
+                           int is_blocking)
 {
     Port *prt;
     ErtsSysReportExit *report_exit;
@@ -1236,8 +1285,13 @@ static int set_driver_data(ErlDrvPort port_num,
 	driver_data[ifd].pid = pid;
 	driver_data[ifd].alive = 1;
 	driver_data[ifd].status = 0;
+        driver_data[ifd].terminating = 0;
+        driver_data[ifd].blocking = NULL;
 	if (read_write & DO_WRITE) {
 	    driver_data[ifd].ofd = ofd;
+            if (is_blocking && FDBLOCK)
+                if (!set_blocking_data(driver_data+ifd))
+                    return -1;
 	    if (ifd != ofd)
 		driver_data[ofd] = driver_data[ifd];  /* structure copy */
 	} else {		/* DO_READ only */
@@ -1253,6 +1307,11 @@ static int set_driver_data(ErlDrvPort port_num,
 	driver_data[ofd].pid = pid;
 	driver_data[ofd].alive = 1;
 	driver_data[ofd].status = 0;
+        driver_data[ofd].terminating = 0;
+        driver_data[ofd].blocking = NULL;
+        if (is_blocking && FDBLOCK)
+            if (!set_blocking_data(driver_data+ofd))
+                return -1;
 	return(ofd);
     }
 }
@@ -1262,11 +1321,13 @@ static int spawn_init()
    int i;
 #if CHLDWTHR
    erts_thr_opts_t thr_opts = ERTS_THR_OPTS_DEFAULT_INITER;
+
    thr_opts.detached = 0;
    thr_opts.suggested_stack_size = 0; /* Smallest possible */
+   thr_opts.name = "child_waiter";
 #endif
 
-   sys_sigset(SIGPIPE, SIG_IGN); /* Ignore - we'll handle the write failure */
+   sys_signal(SIGPIPE, SIG_IGN); /* Ignore - we'll handle the write failure */
    driver_data = (struct driver_data *)
        erts_alloc(ERTS_ALC_T_DRV_TAB, max_files * sizeof(struct driver_data));
    erts_smp_atomic_add_nob(&sys_misc_mem_sz,
@@ -1279,7 +1340,7 @@ static int spawn_init()
    sys_sigblock(SIGCHLD);
 #endif
 
-   sys_sigset(SIGCHLD, onchld); /* Reap children */
+   sys_signal(SIGCHLD, onchld); /* Reap children */
 
 #if CHLDWTHR
    erts_thr_create(&child_waiter_tid, child_waiter, NULL, &thr_opts);
@@ -1745,7 +1806,7 @@ static ErlDrvData spawn_start(ErlDrvPort port_num, char* name, SysDriverOpts* op
     }
 
     res = set_driver_data(port_num, ifd[0], ofd[1], opts->packet_bytes,
-			  opts->read_write, opts->exit_status, pid);
+			  opts->read_write, opts->exit_status, pid, 0);
     /* Don't unblock SIGCHLD until now, since the call above must
        first complete putting away the info about our new subprocess. */
     unblock_signals();
@@ -1830,6 +1891,7 @@ static ErlDrvData fd_start(ErlDrvPort port_num, char* name,
 			   SysDriverOpts* opts)
 {
     ErlDrvData res;
+    int non_blocking = 0;
 
     if (((opts->read_write & DO_READ) && opts->ifd >= max_files) ||
 	((opts->read_write & DO_WRITE) && opts->ofd >= max_files))
@@ -1902,6 +1964,20 @@ static ErlDrvData fd_start(ErlDrvPort port_num, char* name,
      * case - it can be called with any old pre-existing file descriptors,
      * the relations between which (if they're even two) we can only guess
      * at - still, we try our best...
+     *
+     * Added note OTP 18: Some systems seem to use stdout/stderr to log data
+     * using unix pipes, so we cannot allow the system to block on a write.
+     * Therefore we use an async thread to write the data to fd's that could
+     * not be set to non-blocking. When no async threads are available we
+     * fall back on the old behaviour.
+     *
+     * Also the guarantee about what is delivered to the OS has changed.
+     * Pre 18 the fd driver did no flushing of data before terminating.
+     * Now it does. This is because we want to be able to guarantee that things
+     * such as escripts and friends really have outputted all data before
+     * terminating. This could potentially block the termination of the system
+     * for a very long time, but if the user wants to terminate fast she should
+     * use erlang:halt with flush=false.
      */
 
     if (opts->read_write & DO_READ) {
@@ -1924,6 +2000,7 @@ static ErlDrvData fd_start(ErlDrvPort port_num, char* name,
 		       imagine a scenario where setting non-blocking mode
 		       here would cause problems - go ahead and do it. */
 
+                    non_blocking = 1;
 		    SET_NONBLOCKING(opts->ofd);
 
 		} else {	/* output fd is a tty, input fd isn't */
@@ -1966,6 +2043,7 @@ static ErlDrvData fd_start(ErlDrvPort port_num, char* name,
 			(nfd = open(tty, O_WRONLY)) != -1) {
 			dup2(nfd, opts->ofd);
 			close(nfd);
+                        non_blocking = 1;
 			SET_NONBLOCKING(opts->ofd);
 		    }
 		}
@@ -1974,8 +2052,9 @@ static ErlDrvData fd_start(ErlDrvPort port_num, char* name,
     }
     CHLD_STAT_LOCK;
     res = (ErlDrvData)(long)set_driver_data(port_num, opts->ifd, opts->ofd,
-				      opts->packet_bytes,
-				      opts->read_write, 0, -1);
+                                            opts->packet_bytes,
+                                            opts->read_write, 0, -1,
+                                            !non_blocking);
     CHLD_STAT_UNLOCK;
     return res;
 }
@@ -2001,14 +2080,30 @@ static void nbio_stop_fd(ErlDrvPort prt, int fd)
     SET_BLOCKING(fd);
 }
 
-static void fd_stop(ErlDrvData fd)  /* Does not close the fds */
+static void fd_stop(ErlDrvData ev)  /* Does not close the fds */
 {
     int ofd;
+    int fd = (int)(long)ev;
+    ErlDrvPort prt = driver_data[fd].port_num;
     
-    nbio_stop_fd(driver_data[(int)(long)fd].port_num, (int)(long)fd);
-    ofd = driver_data[(int)(long)fd].ofd;
-    if (ofd != (int)(long)fd && ofd != -1) 
-	nbio_stop_fd(driver_data[(int)(long)fd].port_num, (int)(long)ofd);
+#if FDBLOCK
+    if (driver_data[fd].blocking) {
+        erts_free(ERTS_ALC_T_SYS_BLOCKING,driver_data[fd].blocking);
+        driver_data[fd].blocking = NULL;
+        erts_smp_atomic_add_nob(&sys_misc_mem_sz, -1*sizeof(ErtsSysBlocking));
+    }
+#endif
+
+    nbio_stop_fd(prt, fd);
+    ofd = driver_data[fd].ofd;
+    if (ofd != fd && ofd != -1)
+	nbio_stop_fd(prt, ofd);
+}
+
+static void fd_flush(ErlDrvData fd)
+{
+    if (!driver_data[(int)(long)fd].terminating)
+        driver_data[(int)(long)fd].terminating = 1;
 }
 
 static ErlDrvData vanilla_start(ErlDrvPort port_num, char* name,
@@ -2031,8 +2126,8 @@ static ErlDrvData vanilla_start(ErlDrvPort port_num, char* name,
 
     CHLD_STAT_LOCK;
     res = (ErlDrvData)(long)set_driver_data(port_num, fd, fd,
-				      opts->packet_bytes,
-				      opts->read_write, 0, -1);
+                                            opts->packet_bytes,
+                                            opts->read_write, 0, -1, 0);
     CHLD_STAT_UNLOCK;
     return res;
 }
@@ -2069,6 +2164,7 @@ static void stop(ErlDrvData fd)
     }
 }
 
+/* used by fd_driver */
 static void outputv(ErlDrvData e, ErlIOVec* ev)
 {
     int fd = (int)(long)e;
@@ -2094,12 +2190,21 @@ static void outputv(ErlDrvData e, ErlIOVec* ev)
     ev->iov[0].iov_base = lbp;
     ev->iov[0].iov_len = pb;
     ev->size += pb;
+
+    if (driver_data[fd].blocking && FDBLOCK)
+        driver_pdl_lock(driver_data[fd].blocking->pdl);
+
     if ((sz = driver_sizeq(ix)) > 0) {
 	driver_enqv(ix, ev, 0);
+
+        if (driver_data[fd].blocking && FDBLOCK)
+            driver_pdl_unlock(driver_data[fd].blocking->pdl);
+
 	if (sz + ev->size >= (1 << 13))
 	    set_busy_port(ix, 1);
     }
-    else {
+    else if (!driver_data[fd].blocking || !FDBLOCK) {
+        /* We try to write directly if the fd in non-blocking */
 	int vsize = ev->vsize > MAX_VSIZE ? MAX_VSIZE : ev->vsize;
 
 	n = writev(ofd, (const void *) (ev->iov), vsize);
@@ -2115,10 +2220,22 @@ static void outputv(ErlDrvData e, ErlIOVec* ev)
 	driver_enqv(ix, ev, n);  /* n is the skip value */
 	driver_select(ix, ofd, ERL_DRV_WRITE|ERL_DRV_USE, 1);
     }
+#if FDBLOCK
+    else {
+        if (ev->size != 0) {
+            driver_enqv(ix, ev, 0);
+            driver_pdl_unlock(driver_data[fd].blocking->pdl);
+            driver_async(ix, &driver_data[fd].blocking->pkey,
+                         fd_async, driver_data+fd, NULL);
+        } else {
+            driver_pdl_unlock(driver_data[fd].blocking->pdl);
+        }
+    }
+#endif
     /* return 0;*/
 }
 
-
+/* Used by spawn_driver and vanilla driver */
 static void output(ErlDrvData e, char* buf, ErlDrvSizeT len)
 {
     int fd = (int)(long)e;
@@ -2181,6 +2298,23 @@ static int port_inp_failure(ErlDrvPort port_num, int ready_fd, int res)
     ASSERT(res <= 0);
     (void) driver_select(port_num, ready_fd, ERL_DRV_READ|ERL_DRV_WRITE, 0); 
     clear_fd_data(ready_fd);
+
+    if (driver_data[ready_fd].blocking && FDBLOCK) {
+        driver_pdl_lock(driver_data[ready_fd].blocking->pdl);
+        if (driver_sizeq(driver_data[ready_fd].port_num) > 0) {
+            driver_pdl_unlock(driver_data[ready_fd].blocking->pdl);
+            /* We have stuff in the output queue, so we just
+               set the state to terminating and wait for fd_async_ready
+               to terminate the port */
+            if (res == 0)
+                driver_data[ready_fd].terminating = 2;
+            else
+                driver_data[ready_fd].terminating = -err;
+            return 0;
+        }
+        driver_pdl_unlock(driver_data[ready_fd].blocking->pdl);
+    }
+
     if (res == 0) {
 	if (driver_data[ready_fd].report_exit) {
 	    CHLD_STAT_LOCK;
@@ -2231,6 +2365,7 @@ static void ready_input(ErlDrvData e, ErlDrvEvent ready_fd)
     port_num = driver_data[fd].port_num;
     packet_bytes = driver_data[fd].packet_bytes;
 
+
     if (packet_bytes == 0) {
 	byte *read_buf = (byte *) erts_alloc(ERTS_ALC_T_SYS_READ_BUF,
 					     ERTS_SYS_READ_BUF_SZ);
@@ -2354,6 +2489,8 @@ static void ready_output(ErlDrvData e, ErlDrvEvent ready_fd)
 
     if ((iv = (struct iovec*) driver_peekq(ix, &vsize)) == NULL) {
 	driver_select(ix, ready_fd, ERL_DRV_WRITE, 0);
+        if (driver_data[fd].terminating)
+            driver_failure_atom(driver_data[fd].port_num,"normal");
 	return; /* 0; */
     }
     vsize = vsize > MAX_VSIZE ? MAX_VSIZE : vsize;
@@ -2379,6 +2516,78 @@ static void stop_select(ErlDrvEvent fd, void* _)
     close((int)fd);
 }
 
+#if FDBLOCK
+
+static void
+fd_async(void *async_data)
+{
+    int res;
+    struct driver_data *dd = (struct driver_data*)async_data;
+    SysIOVec      *iov0;
+    SysIOVec      *iov;
+    int            iovlen;
+    int            err;
+    /* much of this code is stolen from efile_drv:invoke_writev */
+    driver_pdl_lock(dd->blocking->pdl);
+    iov0 = driver_peekq(dd->port_num, &iovlen);
+    iovlen = iovlen < MAXIOV ? iovlen : MAXIOV;
+    iov = erts_alloc_fnf(ERTS_ALC_T_SYS_WRITE_BUF,
+                         sizeof(SysIOVec)*iovlen);
+    if (!iov) {
+        res = -1;
+        err = ENOMEM;
+        driver_pdl_unlock(dd->blocking->pdl);
+    } else {
+        memcpy(iov,iov0,iovlen*sizeof(SysIOVec));
+        driver_pdl_unlock(dd->blocking->pdl);
+
+        res = writev(dd->ofd, iov, iovlen);
+        err = errno;
+
+        erts_free(ERTS_ALC_T_SYS_WRITE_BUF, iov);
+    }
+    dd->blocking->res = res;
+    dd->blocking->err = err;
+}
+
+void fd_ready_async(ErlDrvData drv_data,
+                    ErlDrvThreadData thread_data) {
+    struct driver_data *dd = (struct driver_data *)thread_data;
+    ErlDrvPort port_num = dd->port_num;
+
+    ASSERT(dd->blocking);
+    ASSERT(dd == (driver_data + (int)(long)drv_data));
+
+    if (dd->blocking->res > 0) {
+        driver_pdl_lock(dd->blocking->pdl);
+        if (driver_deq(port_num, dd->blocking->res) == 0) {
+            driver_pdl_unlock(dd->blocking->pdl);
+            set_busy_port(port_num, 0);
+            if (dd->terminating) {
+                /* The port is has been ordered to terminate
+                   from either fd_flush or port_inp_failure */
+                if (dd->terminating == 1)
+                    driver_failure_atom(port_num, "normal");
+                else if (dd->terminating == 2)
+                    driver_failure_eof(port_num);
+                else if (dd->terminating < 0)
+                    driver_failure_posix(port_num, -dd->terminating);
+                return; /* -1; */
+            }
+        } else {
+            driver_pdl_unlock(dd->blocking->pdl);
+            /* still data left to write in queue */
+            driver_async(port_num, &dd->blocking->pkey, fd_async, dd, NULL);
+            return /* 0; */;
+        }
+    } else if (dd->blocking->res < 0) {
+        driver_failure_posix(port_num, dd->blocking->err);
+        return; /* -1; */
+    }
+    return; /* 0; */
+}
+
+#endif
 
 void erts_do_break_handling(void)
 {
@@ -2648,18 +2857,30 @@ void sys_preload_end(Preload* p)
     /* Nothing */
 }
 
-/* Read a key from console (?) */
-
+/* Read a key from console, used by break.c
+   Here we assume that all schedulers are stopped so that erl_poll
+   does not interfere with the select below.
+*/
 int sys_get_key(fd)
 int fd;
 {
-    int c;
+    int c, ret;
     unsigned char rbuf[64];
+    fd_set fds;
 
     fflush(stdout);		/* Flush query ??? */
 
-    if ((c = read(fd,rbuf,64)) <= 0) {
-      return c; 
+    FD_ZERO(&fds);
+    FD_SET(fd,&fds);
+
+    ret = select(fd+1, &fds, NULL, NULL, NULL);
+
+    if (ret == 1) {
+        do {
+            c = read(fd,rbuf,64);
+        } while (c < 0 && errno == EAGAIN);
+        if (c <= 0)
+            return c;
     }
 
     return rbuf[0]; 
@@ -2983,13 +3204,6 @@ signal_dispatcher_thread_func(void *unused)
 	    case '1': /* SIGUSR1 */
 		sigusr1_exit();
 		break;
-#ifdef QUANTIFY
-	    case '2': /* SIGUSR2 */
-		quantify_save_data(); /* Might take a substantial amount of
-					 time, but this is a test/debug
-					 build */
-		break;
-#endif
 	    default:
 		erl_exit(ERTS_ABORT_EXIT,
 			 "signal-dispatcher thread received unknown "
@@ -3007,6 +3221,7 @@ init_smp_sig_notify(void)
 {
     erts_smp_thr_opts_t thr_opts = ERTS_SMP_THR_OPTS_DEFAULT_INITER;
     thr_opts.detached = 1;
+    thr_opts.name = "sys_sig_dispatcher";
 
     if (pipe(sig_notify_fds) < 0) {
 	erl_exit(ERTS_ABORT_EXIT,
@@ -3021,6 +3236,17 @@ init_smp_sig_notify(void)
 			NULL,
 			&thr_opts);
 }
+
+static void
+init_smp_sig_suspend(void) {
+  if (pipe(sig_suspend_fds) < 0) {
+    erl_exit(ERTS_ABORT_EXIT,
+	     "Failed to create sig_suspend pipe: %s (%d)\n",
+	     erl_errno_id(errno),
+	     errno);
+  }
+}
+
 #ifdef __DARWIN__
 
 int erts_darwin_main_thread_pipe[2];
@@ -3048,9 +3274,11 @@ erts_sys_main_thread(void)
 #endif
 
     smp_sig_notify(0); /* Notify initialized */
-    while (1) {
-	/* Wait for a signal to arrive... */
+
+    /* Wait for a signal to arrive... */
+
 #ifdef __DARWIN__
+    while (1) {
 	/*
 	 * The wx driver needs to be able to steal the main thread for Cocoa to
 	 * work properly.
@@ -3065,12 +3293,24 @@ erts_sys_main_thread(void)
 	    void* (*func)(void*);
 	    void* arg;
 	    void *resp;
-	    read(erts_darwin_main_thread_pipe[0],&func,sizeof(void* (*)(void*)));
-	    read(erts_darwin_main_thread_pipe[0],&arg, sizeof(void*));
+            res = read(erts_darwin_main_thread_pipe[0],&func,sizeof(void* (*)(void*)));
+            if (res != sizeof(void* (*)(void*)))
+                break;
+            res = read(erts_darwin_main_thread_pipe[0],&arg,sizeof(void*));
+            if (res != sizeof(void*))
+                break;
 	    resp = (*func)(arg);
 	    write(erts_darwin_main_thread_result_pipe[1],&resp,sizeof(void *));
 	}
-#else
+
+        if (res == -1 && errno != EINTR)
+            break;
+    }
+    /* Something broke with the main thread pipe, so we ignore it for now.
+       Most probably erts has closed this pipe and is about to exit. */
+#endif /* #ifdef __DARWIN__ */
+
+    while (1) {
 #ifdef DEBUG
 	int res =
 #else
@@ -3079,7 +3319,6 @@ erts_sys_main_thread(void)
 	    select(0, NULL, NULL, NULL, NULL);
 	ASSERT(res < 0);
 	ASSERT(errno == EINTR);
-#endif
     }
 }
 
@@ -3171,6 +3410,7 @@ erl_sys_args(int* argc, char** argv)
 
 #ifdef ERTS_SMP
     init_smp_sig_notify();
+    init_smp_sig_suspend();
 #endif
 
     /* Handled arguments have been marked with NULL. Slide arguments
diff --git a/erts/emulator/sys/unix/sys_float.c b/erts/emulator/sys/unix/sys_float.c
index cafeab547e..c30ef7cce2 100644
--- a/erts/emulator/sys/unix/sys_float.c
+++ b/erts/emulator/sys/unix/sys_float.c
@@ -32,7 +32,7 @@ void
 erts_sys_init_float(void)
 {
 # ifdef SIGFPE
-    sys_sigset(SIGFPE, SIG_IGN); /* Ignore so we can test for NaN and Inf */
+    sys_signal(SIGFPE, SIG_IGN); /* Ignore so we can test for NaN and Inf */
 # endif
 }
 
@@ -85,7 +85,7 @@ static void set_current_fp_exception(unsigned long pc)
 
 void erts_fp_check_init_error(volatile unsigned long *fpexnp)
 {
-    char buf[64];
+    char buf[128];
     snprintf(buf, sizeof buf, "ERTS_FP_CHECK_INIT at %p: detected unhandled FPE at %p\r\n",
 	     __builtin_return_address(0), (void*)*fpexnp);
     if (write(2, buf, strlen(buf)) <= 0)
@@ -667,7 +667,7 @@ static void fpe_sig_handler(int sig)
 
 static void erts_thread_catch_fp_exceptions(void)
 {
-    sys_sigset(SIGFPE, fpe_sig_handler);
+    sys_signal(SIGFPE, fpe_sig_handler);
     unmask_fpe();
 }
 
diff --git a/erts/emulator/sys/unix/sys_time.c b/erts/emulator/sys/unix/sys_time.c
index fcce54a2c4..dc1822b21c 100644
--- a/erts/emulator/sys/unix/sys_time.c
+++ b/erts/emulator/sys/unix/sys_time.c
@@ -31,8 +31,21 @@
 #  undef _FILE_OFFSET_BITS
 #endif
 
+#include <stdlib.h>
 #include "sys.h"
 #include "global.h"
+#include "erl_os_monotonic_time_extender.h"
+
+#undef ERTS_HAVE_ERTS_OS_TIMES_IMPL__
+#undef ERTS_HAVE_ERTS_SYS_HRTIME_IMPL__
+
+#if defined(OS_MONOTONIC_TIME_USING_MACH_CLOCK_GET_TIME) \
+    || defined(OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME) \
+    || defined(SYS_HRTIME_USING_MACH_CLOCK_GET_TIME)
+#  include <mach/clock.h>
+#  include <mach/mach.h>
+#  define ERTS_MACH_CLOCKS
+#endif
 
 #ifdef NO_SYSCONF
 #  define TICKS_PER_SEC()	HZ
@@ -53,9 +66,23 @@
 
 /******************* Routines for time measurement *********************/
 
-int erts_ticks_per_sec = 0; /* Will be SYS_CLK_TCK in erl_unix_sys.h */
-int erts_ticks_per_sec_wrap = 0; /* Will be SYS_CLK_TCK_WRAP */
-static int ticks_bsr = 0; /* Shift wrapped tick value this much to the right */
+#undef ERTS_SYS_TIME_INTERNAL_STATE_WRITE_FREQ__
+#undef ERTS_SYS_TIME_INTERNAL_STATE_READ_ONLY__
+#undef ERTS_SYS_TIME_INTERNAL_STATE_READ_MOSTLY__
+
+#if defined(OS_MONOTONIC_TIME_USING_TIMES)
+
+static Uint32
+get_tick_count(void)
+{
+    struct tms unused;
+    return (Uint32) times(&unused);
+}
+
+#define ERTS_SYS_TIME_INTERNAL_STATE_READ_ONLY__
+#define ERTS_SYS_TIME_INTERNAL_STATE_READ_MOSTLY__
+
+#endif
 
 /* 
  * init timers, chose a tick length, and return it.
@@ -63,37 +90,824 @@ static int ticks_bsr = 0; /* Shift wrapped tick value this much to the right */
  * does almost everything. Other platforms have to
  * emulate Unix in this sense.
  */
-int sys_init_time(void)
+
+ErtsSysTimeData__ erts_sys_time_data__ erts_align_attribute(ERTS_CACHE_LINE_SIZE);
+
+#if defined(__linux__) && defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME)
+
+#define ERTS_SYS_TIME_INTERNAL_STATE_WRITE_FREQ__
+
+static ErtsMonotonicTime clock_gettime_monotonic(void);
+static ErtsMonotonicTime clock_gettime_monotonic_verified(void);
+#if defined(HAVE_CLOCK_GETTIME_MONOTONIC_RAW)
+static ErtsMonotonicTime clock_gettime_monotonic_raw(void);
+#endif
+#if defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME)
+static void clock_gettime_times(ErtsMonotonicTime *, ErtsSystemTime *);
+static void clock_gettime_times_verified(ErtsMonotonicTime *, ErtsSystemTime *);
+#if defined(HAVE_CLOCK_GETTIME_MONOTONIC_RAW)
+static void clock_gettime_times_raw(ErtsMonotonicTime *, ErtsSystemTime *);
+#endif
+#endif
+
+#endif /* defined(__linux__) && defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME) */
+
+#ifdef ERTS_MACH_CLOCKS
+#  define ERTS_SYS_TIME_INTERNAL_STATE_READ_ONLY__
+typedef struct {
+    clock_id_t id;
+    clock_serv_t srv;
+    char *name;
+} ErtsMachClock;
+
+typedef struct {
+    host_name_port_t host;
+    struct {
+	ErtsMachClock monotonic;
+	ErtsMachClock wall;
+    } clock;
+} ErtsMachClocks;
+static void mach_clocks_init(void);
+static void mach_clocks_fini(void);
+#  ifdef HAVE_CLOCK_GET_ATTRIBUTES
+#    define ERTS_HAVE_MACH_CLOCK_GETRES
+static Sint64
+mach_clock_getres(ErtsMachClock *clk);
+#  endif    
+#endif /* ERTS_MACH_CLOCKS */
+
+#ifdef ERTS_SYS_TIME_INTERNAL_STATE_READ_ONLY__
+struct sys_time_internal_state_read_only__ {
+#if defined(OS_MONOTONIC_TIME_USING_TIMES)
+    int times_shift;
+#endif
+#ifdef ERTS_MACH_CLOCKS
+    ErtsMachClocks mach;
+#endif
+};
+#endif
+
+#ifdef ERTS_SYS_TIME_INTERNAL_STATE_READ_MOSTLY__
+struct sys_time_internal_state_read_mostly__ {
+#if defined(OS_MONOTONIC_TIME_USING_TIMES)
+    ErtsOsMonotonicTimeExtendState os_mtime_xtnd;
+#endif
+};
+#endif
+
+#ifdef ERTS_SYS_TIME_INTERNAL_STATE_WRITE_FREQ__
+struct sys_time_internal_state_write_freq__ {
+    erts_smp_mtx_t mtx;
+#if defined(__linux__) && defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME)
+    ErtsMonotonicTime last_delivered;
+#endif
+};
+#endif
+
+#if defined(ERTS_SYS_TIME_INTERNAL_STATE_READ_ONLY__)	\
+    || defined(ERTS_SYS_TIME_INTERNAL_STATE_WRITE_FREQ__)
+static struct {
+#ifdef ERTS_SYS_TIME_INTERNAL_STATE_READ_ONLY__
+    union {
+	struct sys_time_internal_state_read_only__ o;
+	char align__[(((sizeof(struct sys_time_internal_state_read_only__) - 1)
+		       / ASSUMED_CACHE_LINE_SIZE) + 1)
+		     * ASSUMED_CACHE_LINE_SIZE];
+    } r;
+#endif
+#ifdef ERTS_SYS_TIME_INTERNAL_STATE_READ_MOSTLY__
+    union {
+	struct sys_time_internal_state_read_mostly__ m;
+	char align__[(((sizeof(struct sys_time_internal_state_read_mostly__) - 1)
+		       / ASSUMED_CACHE_LINE_SIZE) + 1)
+		     * ASSUMED_CACHE_LINE_SIZE];
+    } wr;
+#endif
+#ifdef ERTS_SYS_TIME_INTERNAL_STATE_WRITE_FREQ__
+    union {
+	struct sys_time_internal_state_write_freq__ f;
+	char align__[(((sizeof(struct sys_time_internal_state_write_freq__) - 1)
+		       / ASSUMED_CACHE_LINE_SIZE) + 1)
+		     * ASSUMED_CACHE_LINE_SIZE];
+    } w;
+#endif
+} internal_state erts_align_attribute(ERTS_CACHE_LINE_SIZE);
+#endif
+
+void
+sys_init_time(ErtsSysInitTimeResult *init_resp)
 {
+#if defined(ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT)
+    int major, minor, build, vsn;
+#endif
+#if defined(ERTS_MACH_CLOCKS)
+    mach_clocks_init();
+#endif
+#if !defined(ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT)
+
+    init_resp->have_os_monotonic_time = 0;
+
+#else /* defined(ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT) */
+
+#ifdef ERTS_HAVE_CORRECTED_OS_MONOTONIC_TIME
+    init_resp->have_corrected_os_monotonic_time = 1;
+#else
+    init_resp->have_corrected_os_monotonic_time = 0;
+#endif
+
+    init_resp->os_monotonic_time_info.resolution = (Uint64) 1000*1000*1000;
+#if defined(HAVE_CLOCK_GETRES) && defined(MONOTONIC_CLOCK_ID)
+    {
+	struct timespec ts;
+	if (clock_getres(MONOTONIC_CLOCK_ID, &ts) == 0) {
+	    if (ts.tv_sec == 0 && ts.tv_nsec != 0)
+		init_resp->os_monotonic_time_info.resolution /= ts.tv_nsec;
+	    else if (ts.tv_sec >= 1)
+		init_resp->os_monotonic_time_info.resolution = 1;
+	}
+    }
+#elif defined(ERTS_HAVE_MACH_CLOCK_GETRES) && defined(MONOTONIC_CLOCK_ID)
+    init_resp->os_monotonic_time_info.resolution
+	= mach_clock_getres(&internal_state.r.o.mach.clock.monotonic);
+#endif
+
+#ifdef MONOTONIC_CLOCK_ID_STR
+    init_resp->os_monotonic_time_info.clock_id = MONOTONIC_CLOCK_ID_STR;
+#else
+    init_resp->os_monotonic_time_info.clock_id = NULL;
+#endif
+
+    init_resp->os_monotonic_time_info.locked_use = 0;
+
+#if defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME)
+    init_resp->os_monotonic_time_info.func = "clock_gettime";
+#elif defined(OS_MONOTONIC_TIME_USING_MACH_CLOCK_GET_TIME)
+    init_resp->os_monotonic_time_info.func = "clock_get_time";
+#elif defined(OS_MONOTONIC_TIME_USING_GETHRTIME)
+    init_resp->os_monotonic_time_info.func = "gethrtime";
+#elif defined(OS_MONOTONIC_TIME_USING_TIMES)
+    init_resp->os_monotonic_time_info.func = "times";
+#else
+# error Unknown erts_os_monotonic_time() implementation
+#endif
+
+    init_resp->have_os_monotonic_time = 1;
+
+    os_version(&major, &minor, &build);
+
+    vsn = ERTS_MK_VSN_INT(major, minor, build);
+
+
+#if defined(__linux__) && defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME)
+    if (vsn >= ERTS_MK_VSN_INT(2, 6, 33)) {
+	erts_sys_time_data__.r.o.os_monotonic_time =
+	    clock_gettime_monotonic;
+#if defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME)
+	erts_sys_time_data__.r.o.os_times =
+	    clock_gettime_times;
+#endif
+    }
+    else {
+	/*
+	 * Linux versions prior to 2.6.33 have a
+	 * known bug that sometimes cause the NTP
+	 * adjusted monotonic clock to take small
+	 * steps backwards. Use raw monotonic clock
+	 * if it is present; otherwise, fall back
+	 * on locked verification of values.
+	 */
+	init_resp->have_corrected_os_monotonic_time = 0;
+#if defined(HAVE_CLOCK_GETTIME_MONOTONIC_RAW)
+	/* We know that CLOCK_MONOTONIC_RAW is defined,
+	   but we don't know if we got a kernel that
+	   supports it. Support for CLOCK_MONOTONIC_RAW
+	   appeared in kernel 2.6.28... */
+	if (vsn >= ERTS_MK_VSN_INT(2, 6, 28)) {
+	    erts_sys_time_data__.r.o.os_monotonic_time =
+		clock_gettime_monotonic_raw;
+#if defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME)
+	    erts_sys_time_data__.r.o.os_times =
+		clock_gettime_times_raw;
+#endif
+	    init_resp->os_monotonic_time_info.clock_id =
+		"CLOCK_MONOTONIC_RAW";
+	}
+	else
+#endif /* defined(HAVE_CLOCK_GETTIME_MONOTONIC_RAW) */
+	{
+	    erts_sys_time_data__.r.o.os_monotonic_time =
+		clock_gettime_monotonic_verified;
+#if defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME)
+	    erts_sys_time_data__.r.o.os_times =
+		clock_gettime_times_verified;
+#endif
+	    erts_smp_mtx_init(&internal_state.w.f.mtx,
+			      "os_monotonic_time");
+	    internal_state.w.f.last_delivered
+		= clock_gettime_monotonic();
+	    init_resp->os_monotonic_time_info.locked_use = 1;
+	}
+    }
+#else /* !(defined(__linux__) && defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME)) */
+    {
+	char flavor[1024];
+
+	os_flavor(flavor, sizeof(flavor));
+
+	if (sys_strcmp(flavor, "sunos") == 0) {
+	    /*
+	     * Don't trust hrtime on multi processors
+	     * on SunOS prior to SunOS 5.8
+	     */
+	    if (vsn < ERTS_MK_VSN_INT(5, 8, 0)) {
+#if defined(HAVE_SYSCONF) && defined(_SC_NPROCESSORS_CONF)
+		if (sysconf(_SC_NPROCESSORS_CONF) > 1)
+#endif
+		    init_resp->have_os_monotonic_time = 0;
+	    }
+	}
+    }
+#endif /* !(defined(__linux__) && defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME)) */
+
+#endif /* defined(ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT) */
+
+#ifdef ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT
+    init_resp->os_monotonic_time_unit = ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT;
+#endif
+    init_resp->sys_clock_resolution = SYS_CLOCK_RESOLUTION;
+
     /* 
-     * This (erts_ticks_per_sec) is only for times() (CLK_TCK), 
-     * the resolution is always one millisecond..
+     * This (erts_sys_time_data__.r.o.ticks_per_sec) is only for
+     * times() (CLK_TCK), the resolution is always one millisecond..
      */
-    if ((erts_ticks_per_sec = TICKS_PER_SEC()) < 0)
-	erl_exit(1, "Can't get clock ticks/sec\n");
-    if (erts_ticks_per_sec >= 1000) {
-	/* Workaround for beta linux kernels, need to be done in runtime
-	   to make erlang run on both 2.4 and 2.5 kernels. In the future, 
-	   the kernel ticks might as 
-	   well be used as a high res timer instead, but that's for when the 
-	   majority uses kernels with HZ == 1024 */
-	ticks_bsr = 3;
-    } else {
-	ticks_bsr = 0;
+    if ((erts_sys_time_data__.r.o.ticks_per_sec = TICKS_PER_SEC()) < 0)
+	erl_exit(ERTS_ABORT_EXIT, "Can't get clock ticks/sec\n");
+    
+#if defined(OS_MONOTONIC_TIME_USING_TIMES)
+#if ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT
+#  error Time unit is supposed to be determined at runtime...
+#endif
+    {
+	ErtsMonotonicTime resolution = erts_sys_time_data__.r.o.ticks_per_sec;
+	ErtsMonotonicTime time_unit = resolution;
+	int shift = 0;
+
+	while (time_unit < 1000*1000) {
+	    time_unit <<= 1;
+	    shift++;
+	}
+
+	init_resp->os_monotonic_time_info.resolution = resolution;
+	init_resp->os_monotonic_time_unit = time_unit;
+	init_resp->os_monotonic_time_info.extended = 1;
+	internal_state.r.o.times_shift = shift;
+
+	erts_init_os_monotonic_time_extender(&internal_state.wr.m.os_mtime_xtnd,
+					     get_tick_count,
+					     (1 << 29) / resolution);
+    }
+#endif /* defined(OS_MONOTONIC_TIME_USING_TIMES) */
+
+#ifdef WALL_CLOCK_ID_STR
+    init_resp->os_system_time_info.clock_id = WALL_CLOCK_ID_STR;
+#else
+    init_resp->os_system_time_info.clock_id = NULL;
+#endif
+
+    init_resp->os_system_time_info.locked_use = 0;
+    init_resp->os_system_time_info.resolution = (Uint64) 1000*1000*1000;
+#if defined(HAVE_CLOCK_GETRES) && defined(WALL_CLOCK_ID)
+    {
+	struct timespec ts;
+	if (clock_getres(WALL_CLOCK_ID, &ts) == 0) {
+	    if (ts.tv_sec == 0 && ts.tv_nsec != 0)
+		init_resp->os_system_time_info.resolution /= ts.tv_nsec;
+	    else if (ts.tv_sec >= 1)
+		init_resp->os_system_time_info.resolution = 1;
+	}
+    }
+#elif defined(ERTS_HAVE_MACH_CLOCK_GETRES) && defined(WALL_CLOCK_ID)
+    init_resp->os_system_time_info.resolution
+	= mach_clock_getres(&internal_state.r.o.mach.clock.wall);
+#endif
+
+#if defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME)
+    init_resp->os_system_time_info.func = "clock_gettime";
+#elif defined(OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME)
+    init_resp->os_system_time_info.func = "clock_get_time";
+#elif defined(OS_SYSTEM_TIME_GETTIMEOFDAY)
+    init_resp->os_system_time_info.func = "gettimeofday";    
+    init_resp->os_system_time_info.resolution = 1000*1000;
+    init_resp->os_system_time_info.clock_id = NULL;
+#else
+#  error Missing erts_os_system_time() implementation
+#endif
+
+}
+
+void
+erts_late_sys_init_time(void)
+{
+#if defined(OS_MONOTONIC_TIME_USING_TIMES)
+    erts_late_init_os_monotonic_time_extender(&internal_state.wr.m.os_mtime_xtnd);
+#endif
+}
+
+static ERTS_INLINE ErtsSystemTime
+adj_stime_time_unit(ErtsSystemTime stime, Uint32 res)
+{
+    if (res == ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT)
+	return stime;
+    if (res == (Uint32) 1000*1000*1000
+	&& ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT == 1000*1000)
+	return stime/1000;
+    if (res == (Uint32) 1000*1000
+	&& ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT == 1000*1000*1000)
+	return stime*1000;
+    return ((ErtsSystemTime)
+	    erts_time_unit_conversion(stime,
+				      (Uint32) res,
+				      (Uint32) ERTS_MONOTONIC_TIME_UNIT));
+}
+
+#define ERTS_TimeSpec2Sint64(TS)				\
+    ((((Sint64) (TS)->tv_sec) * ((Sint64) 1000*1000*1000))	\
+     + ((Sint64) (TS)->tv_nsec))
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
+ * POSIX clock_gettime()                                                     *
+\*                                                                           */
+
+#if defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME) \
+    || defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME)
+
+static ERTS_INLINE Sint64
+posix_clock_gettime(clockid_t id, char *name)
+{
+    struct timespec ts;
+
+    if (clock_gettime(id, &ts) != 0) {
+	int err = errno;
+	char *errstr = err ? strerror(err) : "unknown";
+	erl_exit(ERTS_ABORT_EXIT,
+		 "clock_gettime(%s, _) failed: %s (%d)\n",
+		 name, errstr, err);
+    }
+    return ERTS_TimeSpec2Sint64(&ts);
+}
+
+#endif /* defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME) \
+	  || defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME) */
+
+#if defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME)
+
+ErtsSystemTime
+erts_os_system_time(void)
+{
+    Sint64 stime = posix_clock_gettime(WALL_CLOCK_ID,
+				       WALL_CLOCK_ID_STR);
+    return adj_stime_time_unit((ErtsSystemTime) stime,
+			       (Uint32) 1000*1000*1000);
+}
+
+#endif /* defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME) */
+
+#if defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME)
+
+#if defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME)
+
+#define ERTS_HAVE_ERTS_OS_TIMES_IMPL__
+
+static ERTS_INLINE void
+posix_clock_gettime_times(clockid_t mid, char *mname,
+			  ErtsMonotonicTime *mtimep,
+			  clockid_t sid, char *sname,
+			  ErtsSystemTime *stimep)
+{
+    struct timespec mts, sts;
+    int mres, sres, merr, serr;
+
+    mres = clock_gettime(mid, &mts);
+    merr = errno;
+    sres = clock_gettime(sid, &sts);
+    serr = errno;
+    
+    if (mres != 0) {
+	char *errstr = merr ? strerror(merr) : "unknown";
+	erl_exit(ERTS_ABORT_EXIT,
+		 "clock_gettime(%s, _) failed: %s (%d)\n",
+		 mname, errstr, merr);
+    }
+    if (sres != 0) {
+	char *errstr = serr ? strerror(serr) : "unknown";
+	erl_exit(ERTS_ABORT_EXIT,
+		 "clock_gettime(%s, _) failed: %s (%d)\n",
+		 sname, errstr, serr);
+    }
+
+    *mtimep = (ErtsMonotonicTime) ERTS_TimeSpec2Sint64(&mts);
+    *stimep = (ErtsSystemTime) ERTS_TimeSpec2Sint64(&sts);
+}
+
+#endif /* defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME) */
+
+#if defined(__linux__)
+
+static ErtsMonotonicTime clock_gettime_monotonic_verified(void)
+{
+    ErtsMonotonicTime mtime;
+
+    mtime = (ErtsMonotonicTime) posix_clock_gettime(MONOTONIC_CLOCK_ID,
+						    MONOTONIC_CLOCK_ID_STR);
+
+    erts_smp_mtx_lock(&internal_state.w.f.mtx);
+    if (mtime < internal_state.w.f.last_delivered)
+	mtime = internal_state.w.f.last_delivered;
+    else
+	internal_state.w.f.last_delivered = mtime;
+    erts_smp_mtx_unlock(&internal_state.w.f.mtx);
+
+    return mtime;
+}
+
+#if defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME)
+
+static void clock_gettime_times_verified(ErtsMonotonicTime *mtimep,
+					 ErtsSystemTime *stimep)
+{
+    posix_clock_gettime_times(MONOTONIC_CLOCK_ID,
+			      MONOTONIC_CLOCK_ID_STR,
+			      mtimep,
+			      WALL_CLOCK_ID,
+			      WALL_CLOCK_ID_STR,
+			      stimep);
+
+    erts_smp_mtx_lock(&internal_state.w.f.mtx);
+    if (*mtimep < internal_state.w.f.last_delivered)
+	*mtimep = internal_state.w.f.last_delivered;
+    else
+	internal_state.w.f.last_delivered = *mtimep;
+    erts_smp_mtx_unlock(&internal_state.w.f.mtx);
+}
+
+#endif /* defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME) */
+
+static ErtsMonotonicTime clock_gettime_monotonic(void)
+{
+    return (ErtsMonotonicTime) posix_clock_gettime(MONOTONIC_CLOCK_ID,
+						   MONOTONIC_CLOCK_ID_STR);
+}
+
+#if defined(HAVE_CLOCK_GETTIME_MONOTONIC_RAW)
+
+static ErtsMonotonicTime clock_gettime_monotonic_raw(void)
+{
+    return (ErtsMonotonicTime) posix_clock_gettime(CLOCK_MONOTONIC_RAW,
+						   "CLOCK_MONOTONIC_RAW");
+}
+
+#endif /* defined(HAVE_CLOCK_GETTIME_MONOTONIC_RAW) */
+
+#if defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME)
+
+static void clock_gettime_times(ErtsMonotonicTime *mtimep,
+				ErtsSystemTime *stimep)
+{
+    posix_clock_gettime_times(MONOTONIC_CLOCK_ID,
+			      MONOTONIC_CLOCK_ID_STR,
+			      mtimep,
+			      WALL_CLOCK_ID,
+			      WALL_CLOCK_ID_STR,
+			      stimep);
+}
+
+#if defined(HAVE_CLOCK_GETTIME_MONOTONIC_RAW)
+
+static void clock_gettime_times_raw(ErtsMonotonicTime *mtimep,
+				    ErtsSystemTime *stimep)
+{
+    posix_clock_gettime_times(CLOCK_MONOTONIC_RAW,
+			      "CLOCK_MONOTONIC_RAW",
+			      mtimep,
+			      WALL_CLOCK_ID,
+			      WALL_CLOCK_ID_STR,
+			      stimep);
+}
+
+#endif /* defined(HAVE_CLOCK_GETTIME_MONOTONIC_RAW) */
+
+#endif /* defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME) */
+
+#else /* !defined(__linux__) */
+
+ErtsMonotonicTime erts_os_monotonic_time(void)
+{
+    return posix_clock_gettime(MONOTONIC_CLOCK_ID,
+			       MONOTONIC_CLOCK_ID_STR);
+}
+
+#if defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME)
+
+void erts_os_times(ErtsMonotonicTime *mtimep, ErtsSystemTime *stimep)
+{
+   posix_clock_gettime_times(MONOTONIC_CLOCK_ID,
+			     MONOTONIC_CLOCK_ID_STR,
+			     mtimep,
+			     WALL_CLOCK_ID,
+			     WALL_CLOCK_ID_STR,
+			     stimep);
+}
+
+#endif /* defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME) */
+
+#endif /* !defined(__linux__) */
+
+#endif /* defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME) */
+
+#if defined(SYS_HRTIME_USING_CLOCK_GETTIME)
+#  define ERTS_HAVE_ERTS_SYS_HRTIME_IMPL__
+
+ErtsSysHrTime
+erts_sys_hrtime(void)
+{
+    return (ErtsSysHrTime) posix_clock_gettime(HRTIME_CLOCK_ID,
+					       HRTIME_CLOCK_ID_STR);
+}
+
+#endif /* defined(SYS_HRTIME_USING_CLOCK_GETTIME) */
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
+ * MACH clock_get_time()                                                     *
+\*                                                                           */
+
+#if defined(ERTS_MACH_CLOCKS)
+
+static void
+mach_clocks_fini(void)
+{
+    mach_port_t task = mach_task_self();
+    mach_port_deallocate(task, internal_state.r.o.mach.host);
+#if defined(OS_MONOTONIC_TIME_USING_MACH_CLOCK_GET_TIME)
+    mach_port_deallocate(task, internal_state.r.o.mach.clock.monotonic.srv);
+#endif
+#if defined(OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME)
+    mach_port_deallocate(task, internal_state.r.o.mach.clock.wall.srv);
+#endif
+}
+
+static void
+mach_clocks_init(void)
+{
+    kern_return_t kret;
+    host_name_port_t host;
+    clock_id_t id;
+    clock_serv_t *clck_srv_p;
+    char *name;
+
+    host = internal_state.r.o.mach.host = mach_host_self();
+
+#if defined(OS_MONOTONIC_TIME_USING_MACH_CLOCK_GET_TIME) \
+    ||  defined(SYS_HRTIME_USING_MACH_CLOCK_GET_TIME)
+    id = internal_state.r.o.mach.clock.monotonic.id = MONOTONIC_CLOCK_ID;
+    name = internal_state.r.o.mach.clock.monotonic.name = MONOTONIC_CLOCK_ID_STR;
+    clck_srv_p = &internal_state.r.o.mach.clock.monotonic.srv;
+    kret = host_get_clock_service(host, id, clck_srv_p);
+    if (kret != KERN_SUCCESS) {
+	erl_exit(ERTS_ABORT_EXIT,
+		 "host_get_clock_service(_, %s, _) failed\n",
+		 name);
+    }
+#endif
+
+#if defined(OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME)
+    id = internal_state.r.o.mach.clock.wall.id = WALL_CLOCK_ID;
+    name = internal_state.r.o.mach.clock.wall.name = WALL_CLOCK_ID_STR;
+    clck_srv_p = &internal_state.r.o.mach.clock.wall.srv;
+    kret = host_get_clock_service(host, id, clck_srv_p);
+    if (kret != KERN_SUCCESS) {
+	erl_exit(ERTS_ABORT_EXIT,
+		 "host_get_clock_service(_, %s, _) failed\n",
+		 name);
+    }
+#endif
+
+    if (atexit(mach_clocks_fini) != 0) {
+	int err = errno;
+	char *errstr = err ? strerror(err) : "unknown";
+	erl_exit(ERTS_ABORT_EXIT,
+		 "Failed to register mach_clocks_fini() "
+		 "for call at exit: %s (%d)\n",
+		 errstr, err);
+    }
+}
+
+#ifdef ERTS_HAVE_MACH_CLOCK_GETRES
+
+static Sint64
+mach_clock_getres(ErtsMachClock *clk)
+{
+    kern_return_t kret;
+    natural_t attr[1];
+    mach_msg_type_number_t cnt;
+
+    cnt = sizeof(attr);
+    kret = clock_get_attributes(clk->srv,
+				CLOCK_GET_TIME_RES,
+				(clock_attr_t) attr,
+				&cnt);
+    if (kret != KERN_SUCCESS || cnt != 1) {
+	erl_exit(ERTS_ABORT_EXIT,	
+		 "clock_get_attributes(%s, _) failed\n",
+		 clk->name);
+    }
+
+    return (Sint64) attr[0];
+}
+
+#endif /* ERTS_HAVE_MACH_CLOCK_GETRES */
+
+static ERTS_INLINE Sint64
+mach_clock_get_time(ErtsMachClock *clk)
+{
+    kern_return_t kret;
+    mach_timespec_t time_spec;
+
+    kret = clock_get_time(clk->srv, &time_spec);
+    if (kret != KERN_SUCCESS)
+	erl_exit(ERTS_ABORT_EXIT, "clock_get_time(%s, _) failed\n", clk->name);
+
+    return ERTS_TimeSpec2Sint64(&time_spec);
+}
+
+#endif /* defined(ERTS_MACH_CLOCKS) */
+
+#if defined(OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME)
+
+#define ERTS_HAVE_ERTS_OS_TIMES_IMPL__
+
+ErtsSystemTime
+erts_os_system_time(void)
+{
+    Sint64 stime = mach_clock_get_time(&internal_state.r.o.mach.clock.wall);
+    return adj_stime_time_unit((ErtsSystemTime) stime,
+			       (Uint32) 1000*1000*1000);
+}
+
+#endif /* defined(OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME) */
+
+#if defined(OS_MONOTONIC_TIME_USING_MACH_CLOCK_GET_TIME)
+
+ErtsMonotonicTime
+erts_os_monotonic_time(void)
+{
+    return (ErtsMonotonicTime)
+	mach_clock_get_time(&internal_state.r.o.mach.clock.monotonic);
+}
+
+#if defined(OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME)
+
+#define ERTS_HAVE_ERTS_OS_TIMES_IMPL__
+
+void
+erts_os_times(ErtsMonotonicTime *mtimep, ErtsSystemTime *stimep)
+{
+    kern_return_t mkret, skret;
+    mach_timespec_t mon_time_spec, sys_time_spec;
+
+    mkret = clock_get_time(internal_state.r.o.mach.clock.monotonic.srv,
+			   &mon_time_spec);
+    skret = clock_get_time(internal_state.r.o.mach.clock.wall.srv,
+			   &sys_time_spec);
+
+    if (mkret != KERN_SUCCESS)
+	erl_exit(ERTS_ABORT_EXIT,
+		 "clock_get_time(%s, _) failed\n",
+		 internal_state.r.o.mach.clock.monotonic.name);
+    if (skret != KERN_SUCCESS)
+	erl_exit(ERTS_ABORT_EXIT,
+		 "clock_get_time(%s, _) failed\n",
+		 internal_state.r.o.mach.clock.wall.name);
+
+    *mtimep = (ErtsMonotonicTime) ERTS_TimeSpec2Sint64(&mon_time_spec);
+    *stimep = (ErtsSystemTime) ERTS_TimeSpec2Sint64(&sys_time_spec);
+}
+
+#endif /* defined(OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME) */
+
+#endif /* defined(OS_MONOTONIC_TIME_USING_MACH_CLOCK_GET_TIME) */
+
+#if defined(SYS_HRTIME_USING_MACH_CLOCK_GET_TIME)
+
+#define ERTS_HAVE_ERTS_SYS_HRTIME_IMPL__
+
+ErtsSysHrTime
+erts_sys_hrtime(void)
+{
+    return (ErtsSysHrTime)
+	mach_clock_get_time(&internal_state.r.o.mach.clock.monotonic);
+}
+
+#endif /* defined(SYS_HRTIME_USING_MACH_CLOCK_GET_TIME) */
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
+ * Solaris gethrtime() - OS monotonic time                                   *
+\*                                                                           */
+
+#if defined(OS_MONOTONIC_TIME_USING_GETHRTIME)
+
+ErtsMonotonicTime erts_os_monotonic_time(void)
+{
+    return (ErtsMonotonicTime) gethrtime();
+}
+
+#endif /* defined(OS_MONOTONIC_TIME_USING_GETHRTIME) */
+
+#if defined(SYS_HRTIME_USING_GETHRTIME)
+
+#define ERTS_HAVE_ERTS_SYS_HRTIME_IMPL__
+
+ErtsSysHrTime
+erts_sys_hrtime(void)
+{
+    return (ErtsSysHrTime) gethrtime();
+}
+
+#endif /* defined(SYS_HRTIME_USING_GETHRTIME) */
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
+ * gettimeofday() - OS system time                                           *
+\*                                                                           */
+
+#if defined(OS_SYSTEM_TIME_GETTIMEOFDAY)
+
+ErtsSystemTime
+erts_os_system_time(void)
+{
+    ErtsSystemTime stime;
+    struct timeval tv;
+
+    if (gettimeofday(&tv, NULL) != 0) {
+	int err = errno;
+	char *errstr = err ? strerror(err) : "unknown";
+	erl_exit(ERTS_ABORT_EXIT,
+		 "gettimeofday(_, NULL) failed: %s (%d)\n",
+		 errstr, err);
     }
-    erts_ticks_per_sec_wrap = (erts_ticks_per_sec >> ticks_bsr);
-    return SYS_CLOCK_RESOLUTION;
+
+    stime = (ErtsSystemTime) tv.tv_sec;
+    stime *= (ErtsSystemTime) 1000*1000;
+    stime += (ErtsSystemTime) tv.tv_usec;
+
+    return adj_stime_time_unit(stime, (Uint32) 1000*1000);
 }
 
-clock_t sys_times_wrap(void)
+#endif /* defined(OS_SYSTEM_TIME_GETTIMEOFDAY) */
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
+ * times() - OS monotonic time                                               *
+\*                                                                           */
+
+#if defined(OS_MONOTONIC_TIME_USING_TIMES)
+
+ErtsMonotonicTime
+erts_os_monotonic_time(void)
+{
+    Uint32 ticks = get_tick_count();
+    ERTS_CHK_EXTEND_OS_MONOTONIC_TIME(&internal_state.wr.m.os_mtime_xtnd,
+				      ticks);
+    return ERTS_EXTEND_OS_MONOTONIC_TIME(&internal_state.wr.m.os_mtime_xtnd,
+					 ticks) << internal_state.r.o.times_shift;
+}
+
+#endif
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
+ * Fallbacks                                                                 *
+\*                                                                           */
+
+#ifndef ERTS_HAVE_ERTS_SYS_HRTIME_IMPL__
+
+ErtsSysHrTime
+erts_sys_hrtime(void)
 {
-    SysTimes dummy;
-    clock_t result = (sys_times(&dummy) >> ticks_bsr);
-    return result;
+    return (ErtsSysHrTime) ERTS_MONOTONIC_TO_NSEC(erts_os_system_time());
 }
 
+#endif
+
+#if !defined(ERTS_HAVE_ERTS_OS_TIMES_IMPL__) \
+    && defined(ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT)
 
+void
+erts_os_times(ErtsMonotonicTime *mtimep, ErtsSystemTime *stimep)
+{
+    *mtimep = erts_os_monotonic_time();
+    *stimep = erts_os_system_time();
+}
+
+#endif
 
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #ifdef HAVE_GETHRVTIME_PROCFS_IOCTL
 
diff --git a/erts/emulator/sys/win32/erl_poll.c b/erts/emulator/sys/win32/erl_poll.c
index 972170d465..9196561944 100644
--- a/erts/emulator/sys/win32/erl_poll.c
+++ b/erts/emulator/sys/win32/erl_poll.c
@@ -25,6 +25,7 @@
 #include "sys.h"
 #include "erl_alloc.h"
 #include "erl_poll.h"
+#include "erl_time.h"
 
 /*
  * Some debug macros 
@@ -285,7 +286,7 @@ struct ErtsPollSet_ {
 #ifdef ERTS_SMP
     erts_smp_mtx_t mtx;
 #endif
-    erts_smp_atomic32_t timeout;
+    erts_atomic64_t timeout_time;
 };
 
 #ifdef ERTS_SMP
@@ -363,6 +364,26 @@ do { \
     wait_standby(PS); \
  } while(0)
 
+static ERTS_INLINE void
+init_timeout_time(ErtsPollSet ps)
+{
+    erts_atomic64_init_nob(&ps->timeout_time,
+			   (erts_aint64_t) ERTS_MONOTONIC_TIME_MAX);
+}
+
+static ERTS_INLINE void
+set_timeout_time(ErtsPollSet ps, ErtsMonotonicTime time)
+{
+    erts_atomic64_set_relb(&ps->timeout_time,
+			   (erts_aint64_t) time);
+}
+
+static ERTS_INLINE ErtsMonotonicTime
+get_timeout_time(ErtsPollSet ps)
+{
+    return (ErtsMonotonicTime) erts_atomic64_read_acqb(&ps->timeout_time);
+}
+
 #define ERTS_POLL_NOT_WOKEN		((erts_aint32_t) 0)
 #define ERTS_POLL_WOKEN_IO_READY	((erts_aint32_t) 1)
 #define ERTS_POLL_WOKEN_INTR		((erts_aint32_t) 2)
@@ -422,15 +443,29 @@ wakeup_cause(ErtsPollSet ps)
 }
 
 static ERTS_INLINE DWORD
-poll_wait_timeout(ErtsPollSet ps, SysTimeval *tvp)
+poll_wait_timeout(ErtsPollSet ps, ErtsMonotonicTime timeout_time)
 {
-    time_t timeout = tvp->tv_sec * 1000 + tvp->tv_usec / 1000;
+    ErtsMonotonicTime current_time, diff_time, timeout;
 
-    if (timeout <= 0) {
+    if (timeout_time == ERTS_POLL_NO_TIMEOUT) {
+    no_timeout:
+	set_timeout_time(ps, ERTS_MONOTONIC_TIME_MIN);
 	woke_up(ps);
 	return (DWORD) 0;
     }
 
+    current_time = erts_get_monotonic_time(NULL);
+    diff_time = timeout_time - current_time;
+    if (diff_time <= 0)
+	goto no_timeout;
+
+    /* Round up to nearest milli second */
+    timeout = (ERTS_MONOTONIC_TO_MSEC(diff_time - 1) + 1);
+    if (timeout > INT_MAX)
+	timeout = INT_MAX; /* Also prevents DWORD overflow */
+
+    set_timeout_time(ps, current_time + ERTS_MSEC_TO_MONOTONIC(timeout));
+
     ResetEvent(ps->event_io_ready);
     /*
      * Since we don't know the internals of ResetEvent() we issue
@@ -442,10 +477,6 @@ poll_wait_timeout(ErtsPollSet ps, SysTimeval *tvp)
     if (erts_atomic32_read_nob(&ps->wakeup_state) != ERTS_POLL_NOT_WOKEN)
 	return (DWORD) 0;
 
-    if (timeout > ((time_t) ERTS_AINT32_T_MAX))
-	timeout = ERTS_AINT32_T_MAX; /* Also prevents DWORD overflow */
-
-    erts_smp_atomic32_set_relb(&ps->timeout, (erts_aint32_t) timeout);
     return (DWORD) timeout;
 }
 
@@ -1012,12 +1043,12 @@ void  erts_poll_interrupt(ErtsPollSet ps, int set /* bool */)
 
 void erts_poll_interrupt_timed(ErtsPollSet ps,
 			       int set /* bool */,
-			       erts_short_time_t msec)
+			       ErtsMonotonicTime timeout_time)
 {
-    HARDTRACEF(("In erts_poll_interrupt_timed(%d,%ld)",set,msec));
+    HARDTRACEF(("In erts_poll_interrupt_timed(%d,%ld)",set,timeout_time));
     if (!set)
 	reset_interrupt(ps);
-    else if (erts_smp_atomic32_read_acqb(&ps->timeout) > (erts_aint32_t) msec)
+    else if (get_timeout_time(ps) > timeout_time)
 	set_interrupt(ps);
     HARDTRACEF(("Out erts_poll_interrupt_timed"));
 }
@@ -1092,7 +1123,7 @@ void erts_poll_controlv(ErtsPollSet ps,
 int erts_poll_wait(ErtsPollSet ps,
 		   ErtsPollResFd pr[],
 		   int *len,
-		   SysTimeval *tvp)
+		   ErtsMonotonicTime timeout_time)
 {
     int no_fds;
     DWORD timeout;
@@ -1149,7 +1180,7 @@ int erts_poll_wait(ErtsPollSet ps,
 	no_fds = ERTS_POLL_MAX_RES;
 #endif
 
-    timeout = poll_wait_timeout(ps, tvp);
+    timeout = poll_wait_timeout(ps, timeout_time);
 
     /*HARDDEBUGF(("timeout = %ld",(long) timeout));*/
 
@@ -1242,7 +1273,7 @@ int erts_poll_wait(ErtsPollSet ps,
 	erts_mtx_unlock(&w->mtx);
     }
  done:
-    erts_smp_atomic32_set_nob(&ps->timeout, ERTS_AINT32_T_MAX);
+    set_timeout_time(ps, ERTS_MONOTONIC_TIME_MAX);
     *len = num;
     ERTS_POLLSET_UNLOCK(ps);
     HARDTRACEF(("Out erts_poll_wait"));
@@ -1326,7 +1357,7 @@ ErtsPollSet erts_poll_create_pollset(void)
 #ifdef ERTS_SMP
     erts_smp_mtx_init(&ps->mtx, "pollset");
 #endif
-    erts_smp_atomic32_init_nob(&ps->timeout, ERTS_AINT32_T_MAX);
+    init_timeout_time(ps);
 
     HARDTRACEF(("Out erts_poll_create_pollset"));
     return ps;
diff --git a/erts/emulator/sys/win32/erl_win_sys.h b/erts/emulator/sys/win32/erl_win_sys.h
index 838f0c61eb..a9e37e47a7 100644
--- a/erts/emulator/sys/win32/erl_win_sys.h
+++ b/erts/emulator/sys/win32/erl_win_sys.h
@@ -120,9 +120,6 @@
 /*
  * For erl_time_sup
  */
-#define HAVE_GETHRTIME
-
-#define sys_init_hrtime() /* Nothing */
 
 #define SYS_CLK_TCK 1000
 #define SYS_CLOCK_RESOLUTION 1
@@ -164,18 +161,81 @@ typedef struct {
 #if defined (__GNUC__)
 typedef unsigned long long Uint64;
 typedef long long          Sint64;
-
-typedef long long SysHrTime;
+#  ifdef ULLONG_MAX
+#    define ERTS_UINT64_MAX ULLONG_MAX
+#  endif
+#  ifdef LLONG_MAX
+#    define ERTS_SINT64_MAX LLONG_MAX
+#  endif
+#  ifdef LLONG_MIN
+#    define ERTS_SINT64_MIN LLONG_MIN
+#  endif
+
+typedef long long ErtsMonotonicTime;
+typedef long long ErtsSysHrTime;
 #else
 typedef ULONGLONG Uint64;
 typedef LONGLONG  Sint64;
 
-typedef LONGLONG SysHrTime;
+typedef LONGLONG ErtsMonotonicTime;
+typedef LONGLONG ErtsSysHrTime;
 #endif
 
-extern int sys_init_time(void);
+typedef ErtsMonotonicTime ErtsSystemTime;
+
+ErtsSystemTime erts_os_system_time(void);
+
+#define ERTS_MONOTONIC_TIME_MIN (((ErtsMonotonicTime) 1) << 63)
+#define ERTS_MONOTONIC_TIME_MAX (~ERTS_MONOTONIC_TIME_MIN)
+
+#define ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT 1
+#define ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT 0
+
+struct erts_sys_time_read_only_data__ {
+    ErtsMonotonicTime (*os_monotonic_time)(void);
+    void (*os_times)(ErtsMonotonicTime *, ErtsSystemTime*);
+    ErtsSysHrTime (*sys_hrtime)(void);
+};
+
+typedef struct {
+    union {
+	struct erts_sys_time_read_only_data__ o;
+	char align__[(((sizeof(struct erts_sys_time_read_only_data__) - 1)
+		       / ASSUMED_CACHE_LINE_SIZE) + 1)
+		     * ASSUMED_CACHE_LINE_SIZE];
+    } r;
+} ErtsSysTimeData__;
+
+extern ErtsSysTimeData__ erts_sys_time_data__;
+
+ERTS_GLB_INLINE ErtsMonotonicTime erts_os_monotonic_time(void);
+ERTS_GLB_INLINE void erts_os_times(ErtsMonotonicTime *,
+				   ErtsSystemTime *);
+ERTS_GLB_INLINE ErtsSysHrTime erts_sys_hrtime(void);
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE ErtsMonotonicTime
+erts_os_monotonic_time(void)
+{
+    return (*erts_sys_time_data__.r.o.os_monotonic_time)();
+}
+
+ERTS_GLB_INLINE void
+erts_os_times(ErtsMonotonicTime *mtimep, ErtsSystemTime *stimep)
+{
+    (*erts_sys_time_data__.r.o.os_times)(mtimep, stimep);
+}
+
+ERTS_GLB_INLINE ErtsSysHrTime
+erts_sys_hrtime(void)
+{
+    return (*erts_sys_time_data__.r.o.sys_hrtime)();
+}
+
+#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
+
 extern void sys_gettimeofday(SysTimeval *tv);
-extern SysHrTime sys_gethrtime(void);
 extern clock_t sys_times(SysTimes *buffer);
 
 extern char *win_build_environment(char *);
@@ -207,6 +267,8 @@ extern volatile int erl_fp_exception;
 int _finite(double x);
 #endif
 
+#define erts_isfinite _finite
+
 /*#define NO_FPE_SIGNALS*/
 #define erts_get_current_fp_exception() NULL
 #define __ERTS_FP_CHECK_INIT(fpexnp) do {} while (0)
@@ -236,4 +298,16 @@ typedef long ssize_t;
 int init_async(int);
 int exit_async(void);
 #endif
+
+#define ERTS_HAVE_TRY_CATCH 1
+
+#define ERTS_SYS_TRY_CATCH(EXPR,CATCH)                                  \
+    __try {                                                             \
+    EXPR;                                                               \
+    }                                                                   \
+    __except(GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION ? EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH) \
+    {                                                                   \
+        CATCH;                                                          \
+    }
+
 #endif
diff --git a/erts/emulator/sys/win32/sys.c b/erts/emulator/sys/win32/sys.c
index 0ded6b274e..cf587af4ac 100644
--- a/erts/emulator/sys/win32/sys.c
+++ b/erts/emulator/sys/win32/sys.c
@@ -247,6 +247,27 @@ void erl_sys_args(int* argc, char** argv)
 #endif
 }
 
+/*
+ * Function returns 1 if we can read from all values in between
+ * start and stop.
+ */
+int
+erts_sys_is_area_readable(char *start, char *stop) {
+    volatile char tmp;
+    __try
+    {
+        while(start < stop) {
+            tmp = *start;
+            start++;
+        }
+    }
+    __except(EXCEPTION_EXECUTE_HANDLER)
+    {
+        return 0;
+    }
+    return 1;
+}
+
 int erts_sys_prepare_crash_dump(int secs)
 {
     Port *heart_port;
@@ -1392,39 +1413,46 @@ int parse_command(wchar_t* cmd){
     return i;
 }
 
-static BOOL need_quotes(wchar_t *str)
-{
-    int in_quote = 0;
-    int backslashed = 0;
-    int naked_space = 0;
 
-    while (*str != L'\0') {
-	switch (*str) {
-	case L'\\' :
-	    backslashed = !backslashed;
-	    break;
-	case L'"':
-	    if (backslashed) {
-		backslashed=0;
-	    } else {
-		in_quote = !in_quote;
-	    }
-	    break;
-	case L' ':
-	    backslashed = 0;
-	    if (!(backslashed || in_quote)) {
-		naked_space++;
-	    }
-	    break;
-	default:
-	    backslashed = 0;
+/*
+ * Translating of command line arguments to correct format. In the examples
+ * below the '' are not part of the actual string. 
+ * 'io:format("hello").' -> 'io:format(\"hello\").'
+ * 'io:format("is anybody in there?").' -> '"io:format(\"is anybody in there?\")."'
+ * 'Just nod if you can hear me.' -> '"Just nod if you can hear me."'
+ * 'Is there ""anyone at home?' -> '"Is there \"\"anyone at home?"'
+ * 'Relax."' -> 'Relax.\"'
+ *
+ * If new == NULL we just calculate the length.
+ *
+ * The reason for having to quote all of the is becasue CreateProcessW removes
+ * one level of escaping since it takes a single long command line rather
+ * than the argument chunks that unix uses.
+ */
+static int escape_and_quote(wchar_t *str, wchar_t *new, BOOL *quoted) {
+    int i, j = 0;
+    if (new == NULL)
+        *quoted = FALSE;
+    else if (*quoted)
+        new[j++] = L'"';
+    for ( i = 0; str[i] != L'\0'; i++,j++) {
+        if (str[i] == L' ' && new == NULL && *quoted == FALSE) {
+	    *quoted = TRUE;
+	    j++;
+	}
+	/* check if we have to escape quotes */
+	if (str[i] == L'"') {
+	    if (new) new[j] = L'\\';
+	    j++;
 	}
-	++str;
+	if (new) new[j] = str[i];
+    }
+    if (*quoted) {
+        if (new) new[j] = L'"';
+	j++;
     }
-    return (naked_space > 0);
+    return j;
 }
-	    
-	    
 
 /*
  *----------------------------------------------------------------------
@@ -1585,31 +1613,24 @@ create_child_process
 	    wcscpy(appname, execPath);
 	}
 	if (argv == NULL) { 
-	    BOOL orig_need_q = need_quotes(execPath);
+	    BOOL orig_need_q;
 	    wchar_t *ptr;
-	    int ocl = wcslen(execPath);
+	    int ocl = escape_and_quote(execPath, NULL, &orig_need_q);
 	    if (run_cmd) {
 		newcmdline = (wchar_t *) erts_alloc(ERTS_ALC_T_TMP,
-						    (ocl + ((orig_need_q) ? 3 : 1)
-						     + 11)*sizeof(wchar_t));
+						    (ocl + 1 + 11)*sizeof(wchar_t));
 		memcpy(newcmdline,L"cmd.exe /c ",11*sizeof(wchar_t));
 		ptr = newcmdline + 11;
 	    } else {
 		newcmdline = (wchar_t *) erts_alloc(ERTS_ALC_T_TMP,
-						    (ocl + ((orig_need_q) ? 3 : 1))*sizeof(wchar_t));
+						    (ocl + 1)*sizeof(wchar_t));
 		ptr = (wchar_t *) newcmdline;
 	    }
-	    if (orig_need_q) {
-		*ptr++ = L'"';
-	    }
-	    memcpy(ptr,execPath,ocl*sizeof(wchar_t));
-	    ptr += ocl;
-	    if (orig_need_q) {
-		*ptr++ = L'"';
-	    }
-	    *ptr = L'\0';
+	    ptr += escape_and_quote(execPath, ptr, &orig_need_q);
+	    ptr[0] = L'\0';
 	} else {
-	    int sum = 1; /* '\0' */
+	    int sum = 0;
+	    BOOL *qte = NULL;
 	    wchar_t **ar = argv;
 	    wchar_t *n;
 	    wchar_t *save_arg0 = NULL;
@@ -1620,11 +1641,13 @@ create_child_process
 	    if (run_cmd) {
 		sum += 11; /* cmd.exe /c */
 	    }
+
+	    while (*ar != NULL)  ar++;
+	    qte = erts_alloc(ERTS_ALC_T_TMP, (ar - argv)*sizeof(BOOL));
+
+	    ar = argv;
 	    while (*ar != NULL) {
-		sum += wcslen(*ar);
-		if (need_quotes(*ar)) {
-		    sum += 2; /* quotes */
-		}
+		sum += escape_and_quote(*ar,NULL,qte+(ar - argv));
 		sum++; /* space */
 		++ar;
 	    }
@@ -1636,26 +1659,18 @@ create_child_process
 		n += 11;
 	    }
 	    while (*ar != NULL) {
-		int q = need_quotes(*ar);
-		sum = wcslen(*ar);
-		if (q) {
-		    *n++ = L'"';
-		}
-		memcpy(n,*ar,sum*sizeof(wchar_t));
-		n += sum;
-		if (q) {
-		    *n++ = L'"';
-		}
+		n += escape_and_quote(*ar,n,qte+(ar - argv));
 		*n++ = L' ';
 		++ar;
 	    }
-	    *(n-1) = L'\0';
+	    *(n-1) = L'\0'; /* overwrite last space with '\0' */
 	    if (save_arg0 != NULL) {
 		argv[0] = save_arg0;
 	    }
+	    erts_free(ERTS_ALC_T_TMP, qte);
 	}	    
 	    
-	DEBUGF(("Creating child process: %s, createFlags = %d\n", newcmdline, createFlags));
+	DEBUGF((stderr,"Creating child process: %S, createFlags = %d\n", newcmdline, createFlags));
 	ok = CreateProcessW((wchar_t *) appname,
 			    (wchar_t *) newcmdline,
 			    NULL,
@@ -2190,7 +2205,7 @@ static void fd_stop(ErlDrvData data)
 	ASSERT(dp->out.flushEvent);
 	SetEvent(dp->out.flushEvent);
       } while (WaitForSingleObject(dp->out.flushReplyEvent, 10) == WAIT_TIMEOUT
-	       || !(dp->out.flags & DF_THREAD_FLUSHED));
+	       && !(dp->out.flags & DF_THREAD_FLUSHED));
   }    
 
 }
@@ -3157,25 +3172,31 @@ thr_create_prepare_child(void *vtcdp)
 void
 erts_sys_pre_init(void)
 {
+#ifdef USE_THREADS
+    erts_thr_init_data_t eid = ERTS_THR_INIT_DATA_DEF_INITER;
+#endif
     int_os_version.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
     GetVersionEx(&int_os_version);
     check_supported_os_version();
+
 #ifdef USE_THREADS
-    {
-	erts_thr_init_data_t eid = ERTS_THR_INIT_DATA_DEF_INITER;
+    eid.thread_create_child_func = thr_create_prepare_child;
+    /* Before creation in parent */
+    eid.thread_create_prepare_func = thr_create_prepare;
+    /* After creation in parent */
+    eid.thread_create_parent_func = thr_create_cleanup;
 
-	eid.thread_create_child_func = thr_create_prepare_child;
-	/* Before creation in parent */
-	eid.thread_create_prepare_func = thr_create_prepare;
-	/* After creation in parent */
-	eid.thread_create_parent_func = thr_create_cleanup,
+    erts_thr_init(&eid);
+#endif
+
+    erts_init_sys_time_sup();
 
-	erts_thr_init(&eid);
+#ifdef USE_THREADS
 #ifdef ERTS_ENABLE_LOCK_COUNT
-	erts_lcnt_init();
+    erts_lcnt_init();
 #endif
-    }
 #endif
+
     erts_smp_atomic_init_nob(&sys_misc_mem_sz, 0);
 }
 
@@ -3258,9 +3279,9 @@ erts_sys_schedule_interrupt(int set)
 
 #ifdef ERTS_SMP
 void
-erts_sys_schedule_interrupt_timed(int set, erts_short_time_t msec)
+erts_sys_schedule_interrupt_timed(int set, ErtsMonotonicTime timeout_time)
 {
-    erts_check_io_interrupt_timed(set, msec);
+    erts_check_io_interrupt_timed(set, timeout_time);
 }
 #endif
 
diff --git a/erts/emulator/sys/win32/sys_time.c b/erts/emulator/sys/win32/sys_time.c
index b84c8f85ce..7da060a7a7 100644
--- a/erts/emulator/sys/win32/sys_time.c
+++ b/erts/emulator/sys/win32/sys_time.c
@@ -25,6 +25,11 @@
 #endif
 #include "sys.h"
 #include "assert.h"
+#include "erl_os_monotonic_time_extender.h"
+#include "erl_time.h"
+
+/* Need to look more closely at qpc before use... */
+#define ERTS_DISABLE_USE_OF_QPC_FOR_MONOTONIC_TIME 1
 
 #define LL_LITERAL(X) ERTS_I64_LITERAL(X)
 
@@ -61,11 +66,6 @@
 	(epoch) = ((ull.QuadPart / TICKS_PER_SECOND) - EPOCH_JULIAN_DIFF); \
     } while(0)
  
-static SysHrTime wrap = 0;
-static DWORD last_tick_count = 0;
-static erts_smp_mtx_t wrap_lock;
-static ULONGLONG (WINAPI *pGetTickCount64)(void) = NULL;
-
 /* Getting timezone information is a heavy operation, so we want to do this 
    only once */
 
@@ -76,27 +76,348 @@ static int days_in_month[2][13] = {
     {0,31,28,31,30,31,30,31,31,30,31,30,31},
     {0,31,29,31,30,31,30,31,31,30,31,30,31}};
 
-int 
-sys_init_time(void)
+#define ERTS_GET_TICK_COUNT_TIME_UNIT_SHIFT 10
+
+/*
+ * erts_os_monotonic_time()
+ */
+
+struct sys_time_internal_state_read_only__ {
+    ULONGLONG (WINAPI *pGetTickCount64)(void);
+    BOOL (WINAPI *pQueryPerformanceCounter)(LARGE_INTEGER *);
+    Sint32 pcf;
+    int using_get_tick_count_time_unit;
+};
+
+struct sys_time_internal_state_read_mostly__ {
+    ErtsOsMonotonicTimeExtendState os_mtime_xtnd;
+};
+
+struct sys_time_internal_state_write_freq__ {
+    erts_smp_mtx_t mtime_mtx;
+    ULONGLONG wrap;
+    ULONGLONG last_tick_count;
+};
+
+__declspec(align(ASSUMED_CACHE_LINE_SIZE)) struct {
+    union {
+	struct sys_time_internal_state_read_only__ o;
+	char align__[(((sizeof(struct sys_time_internal_state_read_only__) - 1)
+		       / ASSUMED_CACHE_LINE_SIZE) + 1)
+		     * ASSUMED_CACHE_LINE_SIZE];
+    } r;
+    union {
+	struct sys_time_internal_state_read_mostly__ m;
+	char align__[(((sizeof(struct sys_time_internal_state_read_mostly__) - 1)
+		       / ASSUMED_CACHE_LINE_SIZE) + 1)
+		     * ASSUMED_CACHE_LINE_SIZE];
+    } wr;
+    union {
+	struct sys_time_internal_state_write_freq__ f;
+	char align__[(((sizeof(struct sys_time_internal_state_write_freq__) - 1)
+		       / ASSUMED_CACHE_LINE_SIZE) + 1)
+		     * ASSUMED_CACHE_LINE_SIZE];
+    } w;
+} internal_state;
+
+__declspec(align(ASSUMED_CACHE_LINE_SIZE)) ErtsSysTimeData__ erts_sys_time_data__;
+
+
+static ERTS_INLINE ErtsSystemTime
+SystemTime2MilliSec(SYSTEMTIME *stp)
+{
+    ErtsSystemTime stime;
+    FILETIME ft;
+    ULARGE_INTEGER ull;
+
+    SystemTimeToFileTime(stp, &ft);
+    FILETIME_TO_ULI(ull,ft);
+    /* now in 100 ns units */
+    stime = (ErtsSystemTime) ull.QuadPart;
+    stime -= (((ErtsSystemTime) EPOCH_JULIAN_DIFF)
+	      * ((ErtsSystemTime) (10*1000*1000)));
+    stime /= (ErtsSystemTime) (10*1000); /* ms */
+    return stime;
+}
+
+static ErtsMonotonicTime
+os_monotonic_time_qpc(void)
+{
+    LARGE_INTEGER pc;
+
+    if (!(*internal_state.r.o.pQueryPerformanceCounter)(&pc))
+	erl_exit(ERTS_ABORT_EXIT, "QueryPerformanceCounter() failed\n");
+
+    return (ErtsMonotonicTime) pc.QuadPart;
+}
+
+static void
+os_times_qpc(ErtsMonotonicTime *mtimep, ErtsSystemTime *stimep)
+{
+    LARGE_INTEGER pc;
+    SYSTEMTIME st;
+    ErtsSystemTime stime;
+    BOOL qpcr;
+
+    qpcr = (*internal_state.r.o.pQueryPerformanceCounter)(&pc);
+    GetSystemTime(&st);
+
+    if (!qpcr)
+	erl_exit(ERTS_ABORT_EXIT, "QueryPerformanceCounter() failed\n");
+
+    *mtimep = (ErtsMonotonicTime) pc.QuadPart;
+
+    stime = SystemTime2MilliSec(&st);
+
+    *stimep = ((ErtsSystemTime)
+	       erts_time_unit_conversion((Uint64) stime,
+					 (Uint32) 1000,
+					 internal_state.r.o.pcf));
+}
+
+static Uint32
+get_tick_count(void)
+{
+    return (Uint32) GetTickCount();
+}
+
+static ErtsMonotonicTime
+os_monotonic_time_gtc32(void) 
+{
+    ErtsMonotonicTime mtime;
+    Uint32 ticks = (Uint32) GetTickCount();
+    ERTS_CHK_EXTEND_OS_MONOTONIC_TIME(&internal_state.wr.m.os_mtime_xtnd,
+				      ticks);
+    mtime = ERTS_EXTEND_OS_MONOTONIC_TIME(&internal_state.wr.m.os_mtime_xtnd,
+					  ticks);
+    mtime <<= ERTS_GET_TICK_COUNT_TIME_UNIT_SHIFT;
+    return mtime;
+}
+
+static void
+os_times_gtc32(ErtsMonotonicTime *mtimep, ErtsSystemTime *stimep)
+{
+    SYSTEMTIME st;
+    ErtsSystemTime stime, mtime;
+    Uint32 ticks;
+
+    ticks = (Uint32) GetTickCount();
+    GetSystemTime(&st);
+
+    ERTS_CHK_EXTEND_OS_MONOTONIC_TIME(&internal_state.wr.m.os_mtime_xtnd,
+				      ticks);
+    mtime = ERTS_EXTEND_OS_MONOTONIC_TIME(&internal_state.wr.m.os_mtime_xtnd,
+					  ticks);
+    mtime <<= ERTS_GET_TICK_COUNT_TIME_UNIT_SHIFT;
+    *mtimep = mtime;
+
+    stime = SystemTime2MilliSec(&st);
+    stime <<= ERTS_GET_TICK_COUNT_TIME_UNIT_SHIFT;
+    *stimep = stime;
+
+}
+
+static ErtsMonotonicTime
+os_monotonic_time_gtc64(void) 
+{
+    ULONGLONG ticks = (*internal_state.r.o.pGetTickCount64)();
+    ErtsMonotonicTime mtime = (ErtsMonotonicTime) ticks;
+    return mtime << ERTS_GET_TICK_COUNT_TIME_UNIT_SHIFT;
+}
+
+static void
+os_times_gtc64(ErtsMonotonicTime *mtimep, ErtsSystemTime *stimep)
+{
+    SYSTEMTIME st;
+    ErtsSystemTime stime, mtime;
+    ULONGLONG ticks;
+
+    ticks = (*internal_state.r.o.pGetTickCount64)();
+    GetSystemTime(&st);
+
+    mtime = (ErtsMonotonicTime) ticks;
+    mtime <<= ERTS_GET_TICK_COUNT_TIME_UNIT_SHIFT;
+    *mtimep = mtime;
+
+    stime = SystemTime2MilliSec(&st);
+    stime <<= ERTS_GET_TICK_COUNT_TIME_UNIT_SHIFT;
+    *stimep = stime;
+}
+
+static ErtsSysHrTime
+sys_hrtime_qpc(void)
+{
+    LARGE_INTEGER pc;
+
+    if (!(*internal_state.r.o.pQueryPerformanceCounter)(&pc))
+	erl_exit(ERTS_ABORT_EXIT, "QueryPerformanceCounter() failed\n");
+
+    ASSERT(pc.QuadPart > 0);
+
+    return (ErtsSysHrTime) erts_time_unit_conversion((Uint64) pc.QuadPart,
+						     internal_state.r.o.pcf,
+						     (Uint32) 1000*1000*1000);
+}
+
+static ErtsSysHrTime
+sys_hrtime_gtc32(void)
+{
+    ErtsSysHrTime time;
+    Uint32 ticks = (Uint32) GetTickCount();
+    ERTS_CHK_EXTEND_OS_MONOTONIC_TIME(&internal_state.wr.m.os_mtime_xtnd,
+				      tick_count);
+    time = (ErtsSysHrTime) ERTS_EXTEND_OS_MONOTONIC_TIME(&internal_state.wr.m.os_mtime_xtnd,
+							 ticks);
+    time *= (ErtsSysHrTime) (1000 * 1000);
+    return time;
+}
+
+static ErtsSysHrTime
+sys_hrtime_gtc64(void)
+{
+    ErtsSysHrTime time = (*internal_state.r.o.pGetTickCount64)();
+    time *= (ErtsSysHrTime) (1000*1000);
+    return time;
+}
+
+/*
+ * Init
+ */
+
+void
+sys_init_time(ErtsSysInitTimeResult *init_resp)
 {
+    ErtsMonotonicTime (*os_mtime_func)(void);
+    void (*os_times_func)(ErtsMonotonicTime *, ErtsSystemTime *);
+    ErtsSysHrTime (*sys_hrtime_func)(void) = NULL;
+    ErtsMonotonicTime time_unit;
     char kernel_dll_name[] = "kernel32";
     HMODULE module;
 
+    init_resp->os_monotonic_time_info.clock_id = NULL;
+
     module = GetModuleHandle(kernel_dll_name);
-    pGetTickCount64 = (module != NULL) ? 
-	(ULONGLONG (WINAPI *)(void)) 
-	GetProcAddress(module,"GetTickCount64") : 
-	NULL;
+    if (!module) {
+    get_tick_count:
+	erts_smp_mtx_init(&internal_state.w.f.mtime_mtx,
+			  "os_monotonic_time");
+	internal_state.w.f.wrap = 0;
+	internal_state.w.f.last_tick_count = 0;
+
+	init_resp->os_monotonic_time_info.func = "GetTickCount";
+	init_resp->os_monotonic_time_info.locked_use = 0;
+	/* 10-16 ms resolution according to MicroSoft documentation */
+	init_resp->os_monotonic_time_info.resolution = 100; /* 10 ms */
+	time_unit = (ErtsMonotonicTime) 1000;
+	time_unit <<= ERTS_GET_TICK_COUNT_TIME_UNIT_SHIFT;
+	internal_state.r.o.using_get_tick_count_time_unit = 1;
+	os_mtime_func = os_monotonic_time_gtc32;
+	os_times_func = os_times_gtc32;
+	init_resp->os_monotonic_time_info.extended = 1;
+	erts_init_os_monotonic_time_extender(&internal_state.wr.m.os_mtime_xtnd,
+					     get_tick_count,
+					     60*60*24*7); /* Check once a week */
+	if (!sys_hrtime_func)
+	    sys_hrtime_func = sys_hrtime_gtc32;
+    }
+    else {
+	int major, minor, build;
+
+	os_version(&major, &minor, &build);
+
+	if (major < 6) {
+
+	get_tick_count64:
+
+	    internal_state.r.o.pGetTickCount64
+		= ((ULONGLONG (WINAPI *)(void))
+		   GetProcAddress(module, "GetTickCount64"));
+	    if (!internal_state.r.o.pGetTickCount64)
+		goto get_tick_count;
+
+	    init_resp->os_monotonic_time_info.func = "GetTickCount64";
+	    init_resp->os_monotonic_time_info.locked_use = 0;
+	    /* 10-16 ms resolution according to MicroSoft documentation */
+	    init_resp->os_monotonic_time_info.resolution = 100; /* 10 ms */
+	    time_unit = (ErtsMonotonicTime) 1000;
+	    time_unit <<= ERTS_GET_TICK_COUNT_TIME_UNIT_SHIFT;
+	    internal_state.r.o.using_get_tick_count_time_unit = 1;
+	    os_mtime_func = os_monotonic_time_gtc64;
+	    os_times_func = os_times_gtc64;
+	    if (!sys_hrtime_func)
+		sys_hrtime_func = sys_hrtime_gtc64;
+	}
+	else { /* Vista or newer... */
+
+	    LARGE_INTEGER pf;
+	    BOOL (WINAPI *QPF)(LARGE_INTEGER *);
+
+	    QPF = ((BOOL (WINAPI *)(LARGE_INTEGER *))
+		   GetProcAddress(module, "QueryPerformanceFrequency"));
+	    if (!QPF)
+		goto get_tick_count64;
+	    if (!(*QPF)(&pf))
+		goto get_tick_count64;
+
+	    internal_state.r.o.pQueryPerformanceCounter
+		= ((BOOL (WINAPI *)(LARGE_INTEGER *))
+		   GetProcAddress(module, "QueryPerformanceCounter"));
+	    if (!internal_state.r.o.pQueryPerformanceCounter)
+		goto get_tick_count64;
+
+	    if (pf.QuadPart > (((LONGLONG) 1) << 32))
+		goto get_tick_count64;
+
+	    internal_state.r.o.pcf = (Uint32) pf.QuadPart;
+	    sys_hrtime_func = sys_hrtime_qpc;
+	    
+	    /*
+	     * We only use QueryPerformanceCounter() for
+	     * os-monotonic-time if its frequency is equal
+	     * to, or larger than GHz in order to ensure
+	     * that the user wont be able to observe faulty
+	     * order between values retrieved on different threads.
+	     */
+	    if (pf.QuadPart < (LONGLONG) 1000*1000*1000)
+		goto get_tick_count64;
+
+	    if (ERTS_DISABLE_USE_OF_QPC_FOR_MONOTONIC_TIME)
+		goto get_tick_count64;
+
+	    init_resp->os_monotonic_time_info.func = "QueryPerformanceCounter";
+	    init_resp->os_monotonic_time_info.locked_use = 0;
+	    time_unit = (ErtsMonotonicTime) pf.QuadPart;
+	    internal_state.r.o.using_get_tick_count_time_unit = 0;
+	    init_resp->os_monotonic_time_info.resolution = time_unit;
+	    os_mtime_func = os_monotonic_time_qpc;
+	    os_times_func = os_times_qpc;
+	}
+    }
+
+    erts_sys_time_data__.r.o.os_monotonic_time = os_mtime_func;
+    erts_sys_time_data__.r.o.os_times = os_times_func;
+    init_resp->os_monotonic_time_unit = time_unit;
+    init_resp->have_os_monotonic_time = 1;
+    init_resp->have_corrected_os_monotonic_time = 0;
+    init_resp->sys_clock_resolution = 1;
+
+    init_resp->os_system_time_info.func = "GetSystemTime";    
+    init_resp->os_system_time_info.clock_id = NULL;
+    init_resp->os_system_time_info.resolution = 100;
+    init_resp->os_system_time_info.locked_use = 0;
 
     if(GetTimeZoneInformation(&static_tzi) && 
        static_tzi.StandardDate.wMonth != 0 &&
        static_tzi.DaylightDate.wMonth != 0) {
 	have_static_tzi = 1;
     }
+}
 
-    erts_smp_mtx_init(&wrap_lock, "sys_gethrtime");
-
-    return 1;
+void
+erts_late_sys_init_time(void)
+{
+    if (erts_sys_time_data__.r.o.os_monotonic_time == os_monotonic_time_gtc32)
+	erts_late_init_os_monotonic_time_extender(&internal_state.wr.m.os_mtime_xtnd);
 }
 
 /* Returns a switchtimes for DST as UTC filetimes given data from a 
@@ -377,41 +698,27 @@ sys_gettimeofday(SysTimeval *tv)
 			 EPOCH_JULIAN_DIFF);
 }
 
-extern int erts_initialized;
-SysHrTime 
-sys_gethrtime(void) 
+ErtsSystemTime
+erts_os_system_time(void)
 {
-    if (pGetTickCount64 != NULL) {
-	return ((SysHrTime) pGetTickCount64()) * LL_LITERAL(1000000);
-    } else {
-	DWORD ticks;
-	SysHrTime res;
-	erts_smp_mtx_lock(&wrap_lock);
-	ticks = (SysHrTime) (GetTickCount() & 0x7FFFFFFF);
-	if (ticks < (SysHrTime) last_tick_count) {
-	    /* Detect a race that should no longer be here... */
-	    if ((((SysHrTime) last_tick_count) - ((SysHrTime) ticks)) > 1000) {
-		wrap += LL_LITERAL(1) << 31;
-	    } else {
-		/* 
-		 * XXX Debug: Violates locking order, remove all this,
-		 * after testing!
-		 */
-		erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
-		erts_dsprintf(dsbufp, "Did not wrap when last_tick %d "
-			      "and tick %d", 
-			      last_tick_count, ticks);
-		erts_send_error_to_logger_nogl(dsbufp);
-		ticks = last_tick_count;
-	    }
-	}
-	last_tick_count = ticks;
-	res = ((((LONGLONG) ticks) + wrap) * LL_LITERAL(1000000));
-	erts_smp_mtx_unlock(&wrap_lock);
-	return res;
+    SYSTEMTIME st;
+    ErtsSystemTime stime;
+
+    GetSystemTime(&st);
+    stime = SystemTime2MilliSec(&st);
+
+    if (internal_state.r.o.using_get_tick_count_time_unit) {
+	stime <<= ERTS_GET_TICK_COUNT_TIME_UNIT_SHIFT;
+	return stime;
     }
+
+    return ((ErtsSystemTime)
+	    erts_time_unit_conversion((Uint64) stime,
+				      (Uint32) 1000,
+				      internal_state.r.o.pcf));
 }
 
+
 clock_t 
 sys_times(SysTimes *buffer) {
     clock_t kernel_ticks = (GetTickCount() / 
diff --git a/erts/emulator/test/Makefile b/erts/emulator/test/Makefile
index dfbe47786a..4dc4b5027d 100644
--- a/erts/emulator/test/Makefile
+++ b/erts/emulator/test/Makefile
@@ -108,6 +108,7 @@ MODULES= \
 	trace_call_time_SUITE \
 	scheduler_SUITE \
 	old_scheduler_SUITE \
+	unique_SUITE \
 	z_SUITE \
 	old_mod \
 	long_timers_test \
@@ -124,7 +125,8 @@ NO_OPT= bs_bincomp \
 	bs_match_tail \
 	bs_match_misc \
 	bs_utf \
-	guard
+	guard \
+	map
 
 NATIVE= hibernate
 
diff --git a/erts/emulator/test/after_SUITE.erl b/erts/emulator/test/after_SUITE.erl
index 7cc329cc69..c855481489 100644
--- a/erts/emulator/test/after_SUITE.erl
+++ b/erts/emulator/test/after_SUITE.erl
@@ -27,7 +27,8 @@
 	 init_per_group/2,end_per_group/2, 
 	 t_after/1, receive_after/1, receive_after_big/1,
 	 receive_after_errors/1, receive_var_zero/1, receive_zero/1,
-	 multi_timeout/1, receive_after_32bit/1]).
+	 multi_timeout/1, receive_after_32bit/1,
+	 receive_after_blast/1]).
 
 -export([init_per_testcase/2, end_per_testcase/2]).
 
@@ -40,7 +41,7 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
 all() -> 
     [t_after, receive_after, receive_after_big,
      receive_after_errors, receive_var_zero, receive_zero,
-     multi_timeout, receive_after_32bit].
+     multi_timeout, receive_after_32bit, receive_after_blast].
 
 groups() -> 
     [].
@@ -70,30 +71,23 @@ end_per_testcase(_Func, Config) ->
 t_after(Config) when is_list(Config) ->
     ?line spawn(fun frequent_process/0),
     ?line Period = test_server:minutes(1),
-    ?line Before = erlang:now(),
+    ?line Before = erlang:monotonic_time(),
     receive
 	after Period ->
-		?line After = erlang:now(),
+		?line After = erlang:monotonic_time(),
 		?line report(Period, Before, After)
 	end.
 
-
 report(Period, Before, After) ->
-    ?line Elapsed = (element(1, After)*1000000000
-		     +element(2, After)*1000
-		     +element(3, After) div 1000) -
-	(element(1,Before)*1000000000
-	 + element(2,Before)*1000 + element(3,Before) div 1000),
-    ?line case Elapsed*100 / Period of
-	      Percent when Percent > 100.10 ->
-		  ?line test_server:fail({too_inaccurate, Percent});
-	      Percent when Percent < 100.0 ->
-		  ?line test_server:fail({too_early, Percent});
-	      Percent ->
-		  ?line Comment = io_lib:format("Elapsed/expected: ~.2f %",
-						[Percent]),
-		  {comment, lists:flatten(Comment)}
-	  end.
+    case erlang:convert_time_unit(After - Before, native, 100*1000) / Period of
+	Percent when Percent > 100.10 ->
+	    test_server:fail({too_inaccurate, Percent});
+	Percent when Percent < 100.0 ->
+	    test_server:fail({too_early, Percent});
+	Percent ->
+	    Comment = io_lib:format("Elapsed/expected: ~.2f %", [Percent]),
+	    {comment, lists:flatten(Comment)}
+    end.
 
 frequent_process() ->
     receive
@@ -251,4 +245,26 @@ recv_after_32bit(I, T) when I rem 2 =:= 0 ->
     receive after T -> exit(timeout) end;
 recv_after_32bit(_, _) ->
     receive after 16#ffffFFFF -> exit(timeout) end.
-		    
+
+blaster() ->
+    receive
+	{go, TimeoutTime} ->
+	    Tmo = TimeoutTime - erlang:monotonic_time(milli_seconds),
+	    receive after Tmo -> ok end
+    end.
+
+spawn_blasters(0) ->
+    [];
+spawn_blasters(N) ->
+    [spawn_monitor(fun () -> blaster() end)|spawn_blasters(N-1)].
+
+receive_after_blast(Config) when is_list(Config) ->
+    PMs = spawn_blasters(10000),
+    TimeoutTime = erlang:monotonic_time(milli_seconds) + 5000,
+    lists:foreach(fun ({P, _}) -> P ! {go, TimeoutTime} end, PMs),
+    lists:foreach(fun ({P, M}) ->
+			  receive
+			      {'DOWN', M, process, P, normal} ->
+				  ok
+			  end
+		  end, PMs).
diff --git a/erts/emulator/test/alloc_SUITE.erl b/erts/emulator/test/alloc_SUITE.erl
index 35c44c229a..12a48cc484 100644
--- a/erts/emulator/test/alloc_SUITE.erl
+++ b/erts/emulator/test/alloc_SUITE.erl
@@ -241,18 +241,15 @@ receive_drv_result(Port, CaseName) ->
 start_node(Config) ->
     start_node(Config, []).
 start_node(Config, Opts) when is_list(Config), is_list(Opts) ->
-    ?line Pa = filename:dirname(code:which(?MODULE)),
-    ?line {A, B, C} = now(),
-    ?line Name = list_to_atom(atom_to_list(?MODULE)
-			      ++ "-"
-			      ++ atom_to_list(?config(testcase, Config))
-			      ++ "-"
-			      ++ integer_to_list(A)
-			      ++ "-"
-			      ++ integer_to_list(B)
-			      ++ "-"
-			      ++ integer_to_list(C)),
-    ?line ?t:start_node(Name, slave, [{args, Opts++" -pa "++Pa}]).
+    Pa = filename:dirname(code:which(?MODULE)),
+    Name = list_to_atom(atom_to_list(?MODULE)
+			++ "-"
+			++ atom_to_list(?config(testcase, Config))
+			++ "-"
+			++ integer_to_list(erlang:system_time(seconds))
+			++ "-"
+			++ integer_to_list(erlang:unique_integer([positive]))),
+    ?t:start_node(Name, slave, [{args, Opts++" -pa "++Pa}]).
 
 stop_node(Node) ->
     ?t:stop_node(Node).
diff --git a/erts/emulator/test/beam_literals_SUITE.erl b/erts/emulator/test/beam_literals_SUITE.erl
index 85236e4203..9ceb393034 100644
--- a/erts/emulator/test/beam_literals_SUITE.erl
+++ b/erts/emulator/test/beam_literals_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1999-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -226,10 +226,11 @@ literal_type_tests(Config) when is_list(Config) ->
     %% Generate an Erlang module with all different type of type tests.
     ?line Tests = make_test([{T, L} || T <- type_tests(), L <- literals()]),
     ?line Mod = literal_test,
-    ?line Func = {function, 0, test, 0, [{clause,0,[],[],Tests}]},
-    ?line Form = [{attribute,0,module,Mod},
-		  {attribute,0,compile,export_all},
-		  Func, {eof,0}],
+    Anno = erl_anno:new(0),
+    Func = {function, Anno, test, 0, [{clause,Anno,[],[],Tests}]},
+    Form = [{attribute,Anno,module,Mod},
+            {attribute,Anno,compile,export_all},
+            Func, {eof,Anno}],
 
     %% Print generated code for inspection.
     ?line lists:foreach(fun (F) -> io:put_chars([erl_pp:form(F),"\n"]) end, Form),
@@ -261,7 +262,8 @@ test(T, L) ->
     {ok,Toks,_Line} = erl_scan:string(S),
     {ok,E} = erl_parse:parse_exprs(Toks),
     {value,Val,_Bs} = erl_eval:exprs(E, []),
-    {match,0,{atom,0,Val},hd(E)}.
+    Anno = erl_anno:new(0),
+    {match,Anno,{atom,Anno,Val},hd(E)}.
 
 test(T, A, L) ->
     S = lists:flatten(io_lib:format("begin io:format(\"~~p~n\", [{~p,~p,~p}]), if ~w(~w, ~w) -> true; true -> false end end. ",
@@ -269,7 +271,8 @@ test(T, A, L) ->
     {ok,Toks,_Line} = erl_scan:string(S),
     {ok,E} = erl_parse:parse_exprs(Toks),
     {value,Val,_Bs} = erl_eval:exprs(E, []),
-    {match,0,{atom,0,Val},hd(E)}.
+    Anno = erl_anno:new(0),
+    {match,Anno,{atom,Anno,Val},hd(E)}.
     
 literals() ->
     [42,
diff --git a/erts/emulator/test/bif_SUITE.erl b/erts/emulator/test/bif_SUITE.erl
index fbc229bc53..fc9bdae0a0 100644
--- a/erts/emulator/test/bif_SUITE.erl
+++ b/erts/emulator/test/bif_SUITE.erl
@@ -20,6 +20,7 @@
 -module(bif_SUITE).
 
 -include_lib("test_server/include/test_server.hrl").
+-include_lib("kernel/include/file.hrl").
 
 -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, 
 	 init_per_group/2,end_per_group/2,
@@ -681,8 +682,38 @@ erlang_halt(Config) when is_list(Config) ->
     {badrpc,nodedown} = rpc:call(N2, erlang, halt, [0]),
     {ok,N3} = slave:start(H, halt_node3),
     {badrpc,nodedown} = rpc:call(N3, erlang, halt, [0,[]]),
-    ok.
 
+    % This test triggers a segfault when dumping a crash dump
+    % to make sure that we can handle it properly.
+    {ok,N4} = slave:start(H, halt_node4),
+    CrashDump = filename:join(proplists:get_value(priv_dir,Config),
+                              "segfault_erl_crash.dump"),
+    true = rpc:call(N4, os, putenv, ["ERL_CRASH_DUMP",CrashDump]),
+    false = rpc:call(N4, erts_debug, set_internal_state,
+                     [available_internal_state, true]),
+    {badrpc,nodedown} = rpc:call(N4, erts_debug, set_internal_state,
+                                 [broken_halt, "Validate correct crash dump"]),
+    ok = wait_until_stable_size(CrashDump,-1),
+    {ok, Bin} = file:read_file(CrashDump),
+    case {string:str(binary_to_list(Bin),"\n=end\n"),
+          string:str(binary_to_list(Bin),"\r\n=end\r\n")} of
+        {0,0} -> ct:fail("Could not find end marker in crash dump");
+        _ -> ok
+    end.
+
+wait_until_stable_size(_File,-10) ->
+    {error,enoent};
+wait_until_stable_size(File,PrevSz) ->
+    timer:sleep(250),
+    case file:read_file_info(File) of
+        {error,enoent} ->
+            wait_until_stable_size(File,PrevSz-1);
+        {ok,#file_info{size = PrevSz }} when PrevSz /= -1 ->
+            io:format("Crashdump file size was: ~p (~s)~n",[PrevSz,File]),
+            ok;
+        {ok,#file_info{size = NewSz }} ->
+            wait_until_stable_size(File,NewSz)
+    end.
 
 
 %% Helpers
diff --git a/erts/emulator/test/binary_SUITE.erl b/erts/emulator/test/binary_SUITE.erl
index 44e9e4f243..5911652447 100644
--- a/erts/emulator/test/binary_SUITE.erl
+++ b/erts/emulator/test/binary_SUITE.erl
@@ -520,7 +520,9 @@ external_size_1(Term, Size0, Limit) when Size0 < Limit ->
 external_size_1(_, _, _) -> ok.
 
 t_iolist_size(Config) when is_list(Config) ->
-    ?line Seed = now(),
+    ?line Seed = {erlang:monotonic_time(),
+		  erlang:time_offset(),
+		  erlang:unique_integer([positive])},
     ?line io:format("Seed: ~p", [Seed]),
     ?line random:seed(Seed),
     ?line Base = <<0:(1 bsl 20)/unit:8>>,
diff --git a/erts/emulator/test/busy_port_SUITE.erl b/erts/emulator/test/busy_port_SUITE.erl
index 2ed5aaa0d0..d44a03516a 100644
--- a/erts/emulator/test/busy_port_SUITE.erl
+++ b/erts/emulator/test/busy_port_SUITE.erl
@@ -516,13 +516,13 @@ hs_busy_pcmd(Prt, Opts, StartFun, EndFun) ->
     P = spawn_link(fun () ->
 			   erlang:yield(),
 			   Tester ! {self(), doing_port_command},
-			   Start = now(),
+			   Start = erlang:monotonic_time(micro_seconds),
 			   Res = try {return,
 				      port_command(Prt, [], Opts)}
 				 catch Exception:Error -> {Exception, Error}
 				 end,
-			   End = now(),
-			   Time = round(timer:now_diff(End, Start)/1000),
+			   End = erlang:monotonic_time(micro_seconds),
+			   Time = round((End - Start)/1000),
 			   Tester ! {self(), port_command_result, Res, Time}
 		   end),
     receive
@@ -776,7 +776,7 @@ run_command(_M,spawn,{Args,Opts}) ->
 run_command(M,spawn,Args) ->
     run_command(M,spawn,{Args,[]});
 run_command(Mod,Func,Args) ->
-    erlang:display({{Mod,Func,Args},now()}),
+    erlang:display({{Mod,Func,Args}, erlang:system_time(micro_seconds)}),
     apply(Mod,Func,Args).
 
 validate_scenario(Data,[{print,Var}|T]) ->
diff --git a/erts/emulator/test/code_SUITE.erl b/erts/emulator/test/code_SUITE.erl
index b0408cabe1..df7c8ed1d1 100644
--- a/erts/emulator/test/code_SUITE.erl
+++ b/erts/emulator/test/code_SUITE.erl
@@ -389,61 +389,63 @@ module_md5_ok(Code) ->
 
 make_stub(Config) when is_list(Config) ->
     catch erlang:purge_module(my_code_test),
+    MD5 = erlang:md5(<<>>),
 
     ?line Data = ?config(data_dir, Config),
     ?line File = filename:join(Data, "my_code_test"),
     ?line {ok,my_code_test,Code} = compile:file(File, [binary]),
 
-    ?line my_code_test = code:make_stub_module(my_code_test, Code, {[],[]}),
+    ?line my_code_test = code:make_stub_module(my_code_test, Code, {[],[],MD5}),
     ?line true = erlang:delete_module(my_code_test),
     ?line true = erlang:purge_module(my_code_test),
 
     ?line my_code_test = code:make_stub_module(my_code_test, 
  					       make_unaligned_sub_binary(Code),
- 					       {[],[]}),
+ 					       {[],[],MD5}),
     ?line true = erlang:delete_module(my_code_test),
     ?line true = erlang:purge_module(my_code_test),
 
     ?line my_code_test = code:make_stub_module(my_code_test, zlib:gzip(Code),
- 					       {[],[]}),
+ 					       {[],[],MD5}),
     ?line true = erlang:delete_module(my_code_test),
     ?line true = erlang:purge_module(my_code_test),
 
     %% Should fail.
     ?line {'EXIT',{badarg,_}} =
-	(catch code:make_stub_module(my_code_test, <<"bad">>, {[],[]})),
+	(catch code:make_stub_module(my_code_test, <<"bad">>, {[],[],MD5})),
     ?line {'EXIT',{badarg,_}} =
 	(catch code:make_stub_module(my_code_test,
 				     bit_sized_binary(Code),
-				     {[],[]})),
+				     {[],[],MD5})),
     ?line {'EXIT',{badarg,_}} =
 	(catch code:make_stub_module(my_code_test_with_wrong_name,
-				     Code, {[],[]})),
+				     Code, {[],[],MD5})),
     ok.
 
 make_stub_many_funs(Config) when is_list(Config) ->
     catch erlang:purge_module(many_funs),
+    MD5 = erlang:md5(<<>>),
 
     ?line Data = ?config(data_dir, Config),
     ?line File = filename:join(Data, "many_funs"),
     ?line {ok,many_funs,Code} = compile:file(File, [binary]),
 
-    ?line many_funs = code:make_stub_module(many_funs, Code, {[],[]}),
+    ?line many_funs = code:make_stub_module(many_funs, Code, {[],[],MD5}),
     ?line true = erlang:delete_module(many_funs),
     ?line true = erlang:purge_module(many_funs),
     ?line many_funs = code:make_stub_module(many_funs, 
  					       make_unaligned_sub_binary(Code),
- 					       {[],[]}),
+ 					       {[],[],MD5}),
     ?line true = erlang:delete_module(many_funs),
     ?line true = erlang:purge_module(many_funs),
 
     %% Should fail.
     ?line {'EXIT',{badarg,_}} =
-	(catch code:make_stub_module(many_funs, <<"bad">>, {[],[]})),
+	(catch code:make_stub_module(many_funs, <<"bad">>, {[],[],MD5})),
     ?line {'EXIT',{badarg,_}} =
 	(catch code:make_stub_module(many_funs,
 				     bit_sized_binary(Code),
-				     {[],[]})),
+				     {[],[],MD5})),
     ok.
 
 constant_pools(Config) when is_list(Config) ->
diff --git a/erts/emulator/test/code_parallel_load_SUITE.erl b/erts/emulator/test/code_parallel_load_SUITE.erl
index 428f1242ab..bcec8fa640 100644
--- a/erts/emulator/test/code_parallel_load_SUITE.erl
+++ b/erts/emulator/test/code_parallel_load_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2012-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2012-2014. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -190,13 +190,15 @@ handle_cpc_responses(N, Tag, Module) ->
 generate(Module, Attributes, FunStrings) ->
     FunForms = function_forms(FunStrings),
     Forms    = [
-	{attribute,1,module,Module},
-	{attribute,2,export,[FA || {FA,_} <- FunForms]}
-    ] ++ [{attribute, 3, A, V}|| {A, V} <- Attributes] ++
+	{attribute,a(1),module,Module},
+	{attribute,a(2),export,[FA || {FA,_} <- FunForms]}
+    ] ++ [{attribute, a(3), A, V}|| {A, V} <- Attributes] ++
     [ Function || {_, Function} <- FunForms],
     {ok, Module, Bin} = compile:forms(Forms),
     Bin.
 
+a(L) ->
+    erl_anno:new(L).
 
 function_forms([]) -> [];
 function_forms([S|Ss]) ->
diff --git a/erts/emulator/test/decode_packet_SUITE.erl b/erts/emulator/test/decode_packet_SUITE.erl
index 2baf91cf29..330ad299e5 100644
--- a/erts/emulator/test/decode_packet_SUITE.erl
+++ b/erts/emulator/test/decode_packet_SUITE.erl
@@ -52,7 +52,9 @@ end_per_group(_GroupName, Config) ->
 
 
 init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
-    Seed = {S1,S2,S3} = now(),
+    Seed = {S1,S2,S3} = {erlang:monotonic_time(),
+			 erlang:time_offset(),
+			 erlang:unique_integer()},
     random:seed(S1,S2,S3),
     io:format("*** SEED: ~p ***\n", [Seed]),
     Dog=?t:timetrap(?t:minutes(1)),
diff --git a/erts/emulator/test/distribution_SUITE.erl b/erts/emulator/test/distribution_SUITE.erl
index aa6cf2b881..33cb56c0b9 100644
--- a/erts/emulator/test/distribution_SUITE.erl
+++ b/erts/emulator/test/distribution_SUITE.erl
@@ -1337,10 +1337,7 @@ unwanted_cixs() ->
 get_conflicting_atoms(_CIX, 0) ->
     [];
 get_conflicting_atoms(CIX, N) ->
-    {A, B, C} = now(),
-    Atom = list_to_atom("atom" ++ integer_to_list(A*1000000000000
-						  + B*1000000
-						  + C)),
+    Atom = list_to_atom("atom" ++ integer_to_list(erlang:unique_integer([positive]))),
     case erts_debug:get_internal_state({atom_out_cache_index, Atom}) of
 	CIX ->
 	    [Atom|get_conflicting_atoms(CIX, N-1)];
@@ -1351,10 +1348,7 @@ get_conflicting_atoms(CIX, N) ->
 get_conflicting_unicode_atoms(_CIX, 0) ->
     [];
 get_conflicting_unicode_atoms(CIX, N) ->
-    {A, B, C} = now(),
-    Atom = string_to_atom([16#1f608] ++ "atom" ++ integer_to_list(A*1000000000000
-								  + B*1000000
-								  + C)),
+    Atom = string_to_atom([16#1f608] ++ "atom" ++ integer_to_list(erlang:unique_integer([positive]))),
     case erts_debug:get_internal_state({atom_out_cache_index, Atom}) of
 	CIX ->
 	    [Atom|get_conflicting_unicode_atoms(CIX, N-1)];
@@ -1967,8 +1961,7 @@ dmsg_bad_atom_cache_ref() ->
 %%% Utilities
 
 timestamp() ->
-    {A,B,C} = erlang:now(),
-    (C div 1000) + (B * 1000) + (A * 1000000000).
+    erlang:monotonic_time(milli_seconds).
 
 start_node(X) ->
     start_node(X, [], []).
@@ -1992,7 +1985,9 @@ start_node(Config, Args, Rel) when is_list(Config), is_list(Rel) ->
 			 ++ "-"
 			 ++ atom_to_list(?config(testcase, Config))
 			 ++ "-"
-			 ++ integer_to_list(timestamp()))),
+			 ++ integer_to_list(erlang:system_time(seconds))
+			 ++ "-"
+			 ++ integer_to_list(erlang:unique_integer([positive])))),
     start_node(Name, Args, Rel).
 
 stop_node(Node) ->
@@ -2109,7 +2104,7 @@ node_monitor(Master) ->
 				  Master ! {nodeup, node(), Node}
 			  end,
 			  Nodes0),
-	    ?t:format("~p ~p: ~p~n", [node(), erlang:now(), Nodes0]),
+	    ?t:format("~p ~p: ~p~n", [node(), erlang:system_time(micro_seconds), Nodes0]),
 	    node_monitor_loop(Master);
 	false ->
 	    net_kernel:monitor_nodes(false, Opts),
@@ -2130,7 +2125,7 @@ node_monitor_loop(Master) ->
     receive
 	{nodeup, Node, _InfoList} = Msg ->
 	    Master ! {nodeup, node(), Node},
-	    ?t:format("~p ~p: ~p~n", [node(), erlang:now(), Msg]),
+	    ?t:format("~p ~p: ~p~n", [node(), erlang:system_time(micro_seconds), Msg]),
 	    node_monitor_loop(Master);
 	{nodedown, Node, InfoList} = Msg ->
 	    Reason = case lists:keysearch(nodedown_reason, 1, InfoList) of
@@ -2138,7 +2133,7 @@ node_monitor_loop(Master) ->
 			 _ -> undefined
 		     end,
 	    Master ! {nodedown, node(), Node, Reason},
-	    ?t:format("~p ~p: ~p~n", [node(), erlang:now(), Msg]),
+	    ?t:format("~p ~p: ~p~n", [node(), erlang:system_time(micro_seconds), Msg]),
 	    node_monitor_loop(Master)
     end.
 
diff --git a/erts/emulator/test/driver_SUITE.erl b/erts/emulator/test/driver_SUITE.erl
index 623d62f876..e6beda1ccf 100644
--- a/erts/emulator/test/driver_SUITE.erl
+++ b/erts/emulator/test/driver_SUITE.erl
@@ -390,12 +390,12 @@ timer_measure(Config) when is_list(Config) ->
 
 try_timeouts(_, 0) -> ok;
 try_timeouts(Port, Timeout) ->
-    ?line TimeBefore = now(),
+    ?line TimeBefore = erlang:monotonic_time(),
     ?line erlang:port_command(Port, <<?START_TIMER,Timeout:32>>),
     receive
 	{Port,{data,[?TIMER]}} ->
 	    ?line Elapsed = erl_millisecs() - erl_millisecs(TimeBefore),
-	    io:format("Elapsed: ~p Timeout: ~p\n", [Elapsed,Timeout]),
+	    io:format("Elapsed: ~p Timeout: ~p\n", [Elapsed, Timeout]),
 	    if
 		Elapsed < Timeout ->
 		    ?line ?t:fail(too_short);
@@ -455,7 +455,7 @@ timer_delay(Config) when is_list(Config) ->
     Name = 'timer_drv',
     ?line Port = start_driver(Config, Name, false),
 
-    ?line TimeBefore = now(),
+    ?line TimeBefore = erlang:monotonic_time(),
     Timeout0 = 350,
     ?line erlang:port_command(Port, <<?DELAY_START_TIMER,Timeout0:32>>),
     Timeout = Timeout0 +
@@ -499,7 +499,7 @@ timer_change(Config) when is_list(Config) ->
 try_change_timer(_Port, 0) -> ok;
 try_change_timer(Port, Timeout) ->
     ?line Timeout_3 = Timeout*3,
-    ?line TimeBefore = now(),
+    ?line TimeBefore = erlang:monotonic_time(),
     ?line erlang:port_command(Port, <<?START_TIMER,Timeout_3:32>>),
     ?line erlang:port_command(Port, <<?START_TIMER,Timeout:32>>),
     receive
@@ -2520,13 +2520,11 @@ uniform(N) ->
     end,
     random:uniform(N).
 
-%% return millisecs from statistics source
 erl_millisecs() ->
-    {Ms, S, Us} = erlang:now(),
-    Ms * 1000000000 + S * 1000 + Us / 1000.
+    erl_millisecs(erlang:monotonic_time()).
 
-erl_millisecs({Ms,S,Us}) ->
-    Ms * 1000000000 + S * 1000 + Us / 1000.
+erl_millisecs(MonotonicTime) ->
+    (1000*MonotonicTime)/erlang:convert_time_unit(1,seconds,native).
 
 %% Start/stop drivers.
 start_driver(Config, Name, Binary) ->
@@ -2575,18 +2573,15 @@ sleep(Ms) when is_integer(Ms), Ms >= 0 ->
 
 
 start_node(Config) when is_list(Config) ->
-    ?line Pa = filename:dirname(code:which(?MODULE)),
-    ?line {A, B, C} = now(),
-    ?line Name = list_to_atom(atom_to_list(?MODULE)
-			      ++ "-"
-			      ++ atom_to_list(?config(testcase, Config))
-			      ++ "-"
-			      ++ integer_to_list(A)
-			      ++ "-"
-			      ++ integer_to_list(B)
-			      ++ "-"
-			      ++ integer_to_list(C)),
-    ?line ?t:start_node(Name, slave, [{args, "-pa "++Pa}]).
+    Pa = filename:dirname(code:which(?MODULE)),
+    Name = list_to_atom(atom_to_list(?MODULE)
+			++ "-"
+			++ atom_to_list(?config(testcase, Config))
+			++ "-"
+			++ integer_to_list(erlang:system_time(seconds))
+			++ "-"
+			++ integer_to_list(erlang:unique_integer([positive]))),
+    ?t:start_node(Name, slave, [{args, "-pa "++Pa}]).
 
 stop_node(Node) ->
     ?t:stop_node(Node).
diff --git a/erts/emulator/test/erl_link_SUITE.erl b/erts/emulator/test/erl_link_SUITE.erl
index 435c0872e6..02c1d84d59 100644
--- a/erts/emulator/test/erl_link_SUITE.erl
+++ b/erts/emulator/test/erl_link_SUITE.erl
@@ -1035,16 +1035,13 @@ get_names(N, T) when is_atom(T) ->
 get_names(0, _, Acc) ->
     Acc;
 get_names(N, T, Acc) ->
-    {A, B, C} = now(),
     get_names(N-1, T, [list_to_atom(atom_to_list(?MODULE)
 				    ++ "-"
 				    ++ atom_to_list(T)
 				    ++ "-"
-				    ++ integer_to_list(A)
+				    ++ integer_to_list(erlang:system_time(seconds))
 				    ++ "-"
-				    ++ integer_to_list(B)
-				    ++ "-"
-				    ++ integer_to_list(C)) | Acc]).
+				    ++ integer_to_list(erlang:unique_integer([positive]))) | Acc]).
 
 start_node(Name) ->
     ?line start_node(Name, "").
diff --git a/erts/emulator/test/erts_debug_SUITE.erl b/erts/emulator/test/erts_debug_SUITE.erl
index e5c904cfb9..bc5928436f 100644
--- a/erts/emulator/test/erts_debug_SUITE.erl
+++ b/erts/emulator/test/erts_debug_SUITE.erl
@@ -71,6 +71,11 @@ test_size(Config) when is_list(Config) ->
     4 = do_test_size(#{}),
     32 = do_test_size(#{b => 2,c => 3,txt => "hello world"}),
 
+    true = do_test_size(maps:from_list([{I,I}||I<-lists:seq(1,256)])) >= map_size_lower_bound(256),
+    true = do_test_size(maps:from_list([{I,I}||I<-lists:seq(1,4096)])) >= map_size_lower_bound(4096),
+    true = do_test_size(maps:from_list([{I,I}||I<-lists:seq(1,254)])) >= map_size_lower_bound(254),
+    true = do_test_size(maps:from_list([{I,I}||I<-lists:seq(1,239)])) >= map_size_lower_bound(239),
+
     %% Test internal consistency of sizes, but without testing
     %% exact sizes.
     Const = id(42),
@@ -92,14 +97,14 @@ test_size(Config) when is_list(Config) ->
 
     %% Test shared data structures.
     do_test_size([ConsCell1|ConsCell1],
-		 3*ConsCellSz,
-		 2*ConsCellSz),
+        	 3*ConsCellSz,
+        	 2*ConsCellSz),
     do_test_size(fun() -> {ConsCell1,ConsCell2} end,
-		 FunSz2 + 2*ConsCellSz,
-		 FunSz2 + ConsCellSz),
+        	 FunSz2 + 2*ConsCellSz,
+        	 FunSz2 + ConsCellSz),
     do_test_size({SimplestFun,SimplestFun},
-		 2*FunSz0+do_test_size({a,b}),
-		 FunSz0+do_test_size({a,b})),
+        	 2*FunSz0+do_test_size({a,b}),
+        	 FunSz0+do_test_size({a,b})),
 
     M = id(#{ "atom" => first, i => 0}),
     do_test_size([M,M#{ "atom" := other },M#{i := 42}],54,32),
@@ -113,6 +118,13 @@ do_test_size(Term, FlatSz, Sz) ->
     FlatSz = erts_debug:flat_size(Term),
     Sz = erts_debug:size(Term).
 
+map_size_lower_bound(N) ->
+    %% this est. is a bit lower that actual lower bound
+    %% number of internal nodes
+    T = (N - 1) div 15,
+    %% total words
+    2 + 17 * T + 2 * N.
+
 flat_size_big(Config) when is_list(Config) ->
     %% Build a term whose external size only fits in a big num (on 32-bit CPU).
     flat_size_big_1(16#11111111111111117777777777777777888889999, 0, 16#FFFFFFF).
diff --git a/erts/emulator/test/estone_SUITE.erl b/erts/emulator/test/estone_SUITE.erl
index 1de6d6fb56..67a53d94b1 100644
--- a/erts/emulator/test/estone_SUITE.erl
+++ b/erts/emulator/test/estone_SUITE.erl
@@ -339,7 +339,6 @@ micros() ->
     ].
 
 macro(Ms,DataDir) ->
-    erlang:now(),  %% compensate for old 4.3 firsttime clock bug :-(
     statistics(reductions),
     statistics(runtime),
     lists(500),  %% fixup cache on first round
@@ -369,10 +368,9 @@ run_micro(Top, M, DataDir) ->
 apply_micro(M) ->
     {GC0, Words0, _} = statistics(garbage_collection),
     statistics(reductions),
-    Before = erlang:now(),
-
+    Before = monotonic_time(),
     Compensate = apply_micro(M#micro.function, M#micro.loops),
-    After = erlang:now(),
+    After = monotonic_time(),
     {GC1, Words1, _} = statistics(garbage_collection),
     {_, Reds} = statistics(reductions),
     Elapsed = subtr(Before, After),
@@ -389,12 +387,13 @@ apply_micro(M) ->
      {kilo_reductions, Reds div 1000},
      {gc_intensity, gci(Elapsed, GC1 - GC0, Words1 - Words0)}].
 
+monotonic_time() ->
+    try erlang:monotonic_time() catch error:undef -> erlang:now() end.
 
-subtr(Before, After) ->
-    (element(1,After)*1000000000000
-     +element(2,After)*1000000+element(3,After)) -
-        (element(1,Before)*1000000000000
-         +element(2,Before)*1000000+element(3,Before)).
+subtr(Before, After) when is_integer(Before), is_integer(After) ->
+    erlang:convert_time_unit(After-Before, native, micro_seconds);
+subtr({_,_,_}=Before, {_,_,_}=After) ->
+    timer:now_diff(After, Before).
 
 gci(Micros, Words, Gcs) ->
     ((256 * Gcs) / Micros) + (Words / Micros).
@@ -633,10 +632,10 @@ tup_trav(T, P, End) ->
 %% Port I/O
 port_io(I) ->
     EstoneCat = get(estone_cat),
-    Before = erlang:now(),
+    Before = monotonic_time(),
     Pps = make_port_pids(5, I, EstoneCat),  %% 5 ports
     send_procs(Pps, go),
-    After = erlang:now(),
+    After = monotonic_time(),
     wait_for_pids(Pps),
     subtr(Before, After).
 
@@ -854,10 +853,10 @@ handle_call(_From, State, [abc]) ->
 
 %% Binary handling, creating, manipulating and sending binaries
 binary_h(I) ->
-    Before = erlang:now(),
+    Before = monotonic_time(),
     P = spawn(?MODULE, echo, [self()]),
     B = list_to_binary(lists:duplicate(2000, 5)),
-    After = erlang:now(),
+    After = monotonic_time(),
     Compensate = subtr(Before, After),
     binary_h_2(I, P, B),
     Compensate.
diff --git a/erts/emulator/test/float_SUITE.erl b/erts/emulator/test/float_SUITE.erl
index 4a45afa9e9..a07516b5a9 100644
--- a/erts/emulator/test/float_SUITE.erl
+++ b/erts/emulator/test/float_SUITE.erl
@@ -294,16 +294,13 @@ id(I) -> I.
     
 start_node(Config) when is_list(Config) ->
     ?line Pa = filename:dirname(code:which(?MODULE)),
-    ?line {A, B, C} = now(),
     ?line Name = list_to_atom(atom_to_list(?MODULE)
 			      ++ "-"
 			      ++ atom_to_list(?config(testcase, Config))
 			      ++ "-"
-			      ++ integer_to_list(A)
+			      ++ integer_to_list(erlang:system_time(seconds))
 			      ++ "-"
-			      ++ integer_to_list(B)
-			      ++ "-"
-			      ++ integer_to_list(C)),
+			      ++ integer_to_list(erlang:unique_integer([positive]))),
     ?line ?t:start_node(Name, slave, [{args, "-pa "++Pa}]).
 
 stop_node(Node) ->
diff --git a/erts/emulator/test/gc_SUITE.erl b/erts/emulator/test/gc_SUITE.erl
index 36889b6c36..1b92e3198e 100644
--- a/erts/emulator/test/gc_SUITE.erl
+++ b/erts/emulator/test/gc_SUITE.erl
@@ -77,7 +77,7 @@ grow_heap1(List, MaxLen, CurLen, up) ->
 grow_heap1([], _MaxLen, _, down) ->
     ok;
 grow_heap1([_|List], MaxLen, CurLen, down) ->
-    {_,_,C} = erlang:now(),
+    C=erlang:unique_integer([positive]),
     Num     = C rem (length(List))+1,
     Elem    = lists:nth(Num, List),
     NewList = lists:delete(Elem, List),
@@ -136,7 +136,7 @@ grow_stack_heap1(List, MaxLen, CurLen, up) ->
 grow_stack_heap1([], _MaxLen, _, down) -> ok;
 grow_stack_heap1([_|List], MaxLen, CurLen, down) ->
     grow_stack1(CurLen*2,0),
-    {_,_,C}=erlang:now(),
+    C=erlang:unique_integer([positive]),
     Num=C rem (length(List))+1,
     Elem=lists:nth(Num, List),
     NewList=lists:delete(Elem, List),
@@ -146,8 +146,8 @@ grow_stack_heap1([_|List], MaxLen, CurLen, down) ->
 
 %% Create an arbitrary element/term.
 make_arbit() ->
-    {AA,BB,CC}=erlang:now(),
-    A=AA+1, B=BB+1, C=CC+1,
+    {AA,BB,CC}=erlang:timestamp(),
+    A=AA+1, B=BB+1, C=(CC+erlang:unique_integer([positive])) rem 1000000 + 1,
     New =
 	case C rem 9 of
 	    0 -> make_string((B div C) +5);
@@ -171,7 +171,7 @@ make_string(Length) ->
 make_string(_, 0, Acc) ->
     Acc;
 make_string(Alph, Length, Acc) ->
-    {_,_,C}=erlang:now(),
+    C=erlang:unique_integer([positive]),
     Pos=1+(Length*C rem length(Alph)),
     make_string(Alph, Length-1, 
 		[lists:nth(Pos,Alph)|Acc]).
diff --git a/erts/emulator/test/hash_SUITE.erl b/erts/emulator/test/hash_SUITE.erl
index 647bb45049..5fa45f772d 100644
--- a/erts/emulator/test/hash_SUITE.erl
+++ b/erts/emulator/test/hash_SUITE.erl
@@ -73,6 +73,7 @@ config(priv_dir,_) ->
 	 init_per_group/2,end_per_group/2,
 	 test_basic/1,test_cmp/1,test_range/1,test_spread/1,
 	 test_phash2/1,otp_5292/1,bit_level_binaries/1,otp_7127/1,
+         test_hash_zero/1,
 	 end_per_testcase/2,init_per_testcase/2]).
 init_per_testcase(_Case, Config) ->
     Dog=test_server:timetrap(test_server:minutes(10)),
@@ -86,7 +87,9 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() -> 
     [test_basic, test_cmp, test_range, test_spread,
-     test_phash2, otp_5292, bit_level_binaries, otp_7127].
+     test_phash2, otp_5292, bit_level_binaries, otp_7127,
+     test_hash_zero
+    ].
 
 groups() -> 
     [].
@@ -160,6 +163,8 @@ otp_7127(doc) ->
 otp_7127(Config) when is_list(Config) ->
     otp_7127_test().
 
+test_hash_zero(Config) when is_list(Config) ->
+    hash_zero_test().
 -endif.
 
 
@@ -591,6 +596,26 @@ otp_7127_test() ->
     38990304 = erlang:phash2(<<"Scott9">>),
     ok.
 
+hash_zero_test() ->
+    Zs = [0.0, -0.0, 0/-1, 0.0/-1, 0/-(1 bsl 65),
+          binary_to_term(<<131,70,0,0,0,0,0,0,0,0>>),    %% +0.0
+          binary_to_term(<<131,70,128,0,0,0,0,0,0,0>>)], %% -0.0
+    ok = hash_zero_test(Zs,fun(T) -> erlang:phash2(T, 1 bsl 32) end),
+    ok = hash_zero_test(Zs,fun(T) -> erlang:phash(T, 1 bsl 32) end),
+    ok = hash_zero_test(Zs,fun(T) -> erlang:hash(T, (1 bsl 27) - 1) end),
+    ok.
+
+hash_zero_test([Z|Zs],F) ->
+    hash_zero_test(Zs,Z,F(Z),F).
+hash_zero_test([Z|Zs],Z0,V,F) ->
+    true = Z0 =:= Z, %% assert exact equal
+    Z0   = Z,        %% assert matching
+    V    = F(Z),     %% assert hash
+    hash_zero_test(Zs,Z0,V,F);
+hash_zero_test([],_,_,_) ->
+    ok.
+
+
 %%
 %% Reference implementation of integer hashing
 %%
diff --git a/erts/emulator/test/long_timers_test.erl b/erts/emulator/test/long_timers_test.erl
index 28a4fba9f6..f381332b51 100644
--- a/erts/emulator/test/long_timers_test.erl
+++ b/erts/emulator/test/long_timers_test.erl
@@ -28,7 +28,7 @@
 
 
 -define(MAX_TIMEOUT, 60). % Minutes
--define(MAX_LATE, 10*1000). % Milliseconds
+-define(MAX_LATE_MS, 10*1000). % Milliseconds
 -define(REG_NAME, '___LONG___TIMERS___TEST___SERVER___').
 
 -define(DRV_NAME, timer_driver).
@@ -75,7 +75,7 @@ check_result() ->
 	    erlang:demonitor(Mon),
 	    receive {'DOWN', Mon, _, _, _} -> ok after 0 -> ok end,
 	    stop_node(Node),
-	    check(TORs, (timer:now_diff(End, Start) div 1000) - ?MAX_LATE, ok)
+	    check(TORs, ms((End - Start) - max_late()), ok)
     end.
 
 check([#timeout_rec{timeout = Timeout,
@@ -83,7 +83,7 @@ check([#timeout_rec{timeout = Timeout,
 		    timeout_diff = undefined} | TORs],
       NeedRes,
       _Ok) when Timeout < NeedRes ->
-    io:format("~p timeout = ~p failed! No timeout.~n",
+    io:format("~p timeout = ~p ms failed! No timeout.~n",
 	      [Type, Timeout]),
     check(TORs, NeedRes, failed);
 check([#timeout_rec{timeout_diff = undefined} | TORs],
@@ -95,7 +95,7 @@ check([#timeout_rec{timeout = Timeout,
 		    timeout_diff = {error, Reason}} | TORs],
       NeedRes,
       _Ok) ->
-    io:format("~p timeout = ~p failed! exit reason ~p~n",
+    io:format("~p timeout = ~p ms failed! exit reason ~p~n",
 	      [Type, Timeout, Reason]),
     check(TORs, NeedRes, failed);
 check([#timeout_rec{timeout = Timeout,
@@ -103,43 +103,77 @@ check([#timeout_rec{timeout = Timeout,
 		    timeout_diff = TimeoutDiff} | TORs],
       NeedRes,
       Ok) ->
-    case (0 =< TimeoutDiff) and (TimeoutDiff =< ?MAX_LATE) of
-	true ->
-	    io:format("~p timeout = ~p succeded! timeout diff = ~p.~n",
-		      [Type, Timeout, TimeoutDiff]),
-	    check(TORs, NeedRes, Ok);
-	false ->
-	    io:format("~p timeout = ~p failed! timeout diff = ~p.~n",
-		      [Type, Timeout, TimeoutDiff]),
-	    check(TORs, NeedRes, failed)
-    end;
+    {NewOk, SuccessStr} = case ((0 =< TimeoutDiff)
+				andalso (TimeoutDiff =< max_late())) of
+			      true -> {Ok, "succeeded"};
+			      false -> {failed, "FAILED"}
+			  end,
+    io:format("~s timeout = ~s ms ~s! timeout diff = ~s.~n",
+	      [type_str(Type),
+	       time_str(Timeout),
+	       SuccessStr,
+	       time_str(TimeoutDiff, erlang:convert_time_unit(1, seconds, native))]),
+    check(TORs, NeedRes, NewOk);
 check([], _NeedRes, Ok) ->
     Ok.
 
+type_str(receive_after) -> "receive ... after";
+type_str(bif_timer) -> "BIF timer";
+type_str(driver) -> "driver".
+
+time_str(Time, Unit) ->
+    lists:flatten([time_str(Time), " ", unit_str(Unit)]).
+
+time_str(Time) ->
+    lists:reverse(conv_time_str(lists:reverse(integer_to_list(Time)))).
+
+conv_time_str([X,Y,Z,C|Cs]) when C /= $- ->
+    [X,Y,Z,$`|conv_time_str([C|Cs])];
+conv_time_str(Cs) ->
+    Cs.
+
+unit_str(1) -> "s";
+unit_str(1000) -> "ms";
+unit_str(1000000) -> "us";
+unit_str(1000000000) -> "ns";
+unit_str(Res) when is_integer(Res) -> ["/ ", integer_to_list(Res), " s"];
+unit_str(Res) -> Res.
+
+to_diff(Timeout, Start, Stop) ->
+    %% 'Timeout' in milli seconds
+    %% 'Start', 'Stop', and result in native unit
+    (Stop - Start) - erlang:convert_time_unit(Timeout, milli_seconds, native).
+
+ms(Time) ->
+    erlang:convert_time_unit(Time, native, milli_seconds).
+
+max_late() ->
+    erlang:convert_time_unit(?MAX_LATE_MS, milli_seconds, native).
+
 receive_after(Timeout) ->
-    Start = now(),
+    Start = erlang:monotonic_time(),
     receive
 	{get_result, ?REG_NAME} ->
 	    ?REG_NAME ! #timeout_rec{pid = self(),
 				     type = receive_after,
 				     timeout = Timeout}
     after Timeout ->
-	    Stop = now(),
+	    Stop = erlang:monotonic_time(),
 	    receive
 		{get_result, ?REG_NAME} ->
-	    	    TimeoutDiff = ((timer:now_diff(Stop, Start) div 1000)
-				   - Timeout),
 		    ?REG_NAME ! #timeout_rec{pid = self(),
 					     type = receive_after,
 					     timeout = Timeout,
-					     timeout_diff = TimeoutDiff}
+					     timeout_diff = to_diff(Timeout,
+								    Start,
+								    Stop)}
 	    end
     end.
 
 driver(Timeout) ->
     Port = open_port({spawn, ?DRV_NAME},[]),
     link(Port),
-    Start = now(),
+    Start = erlang:monotonic_time(),
     erlang:port_command(Port, <<?START_TIMER, Timeout:32>>),
     receive
 	{get_result, ?REG_NAME} ->
@@ -147,38 +181,38 @@ driver(Timeout) ->
 				     type = driver,
 				     timeout = Timeout};
 	{Port,{data,[?TIMER]}} ->
-	    Stop = now(),
+	    Stop = erlang:monotonic_time(),
 	    unlink(Port),
 	    true = erlang:port_close(Port),
 	    receive
 		{get_result, ?REG_NAME} ->
-	    	    TimeoutDiff = ((timer:now_diff(Stop, Start) div 1000)
-				   - Timeout),
 		    ?REG_NAME ! #timeout_rec{pid = self(),
 					     type = driver,
 					     timeout = Timeout,
-					     timeout_diff = TimeoutDiff}
+					     timeout_diff = to_diff(Timeout,
+								    Start,
+								    Stop)}
 	    end
     end.
 
 bif_timer(Timeout) ->
     Tmr = erlang:start_timer(Timeout, self(), ok),
-    Start = now(),
+    Start = erlang:monotonic_time(),
     receive
 	{get_result, ?REG_NAME} ->
 	    ?REG_NAME ! #timeout_rec{pid = self(),
 				     type = bif_timer,
 				     timeout = Timeout};
 	{timeout, Tmr, ok} ->
-	    Stop = now(),
+	    Stop = erlang:monotonic_time(),
 	    receive
 		{get_result, ?REG_NAME} ->
-	    	    TimeoutDiff = ((timer:now_diff(Stop, Start) div 1000)
-				   - Timeout),
 		    ?REG_NAME ! #timeout_rec{pid = self(),
 					     type = bif_timer,
 					     timeout = Timeout,
-					     timeout_diff = TimeoutDiff}
+					     timeout_diff = to_diff(Timeout,
+								    Start,
+								    Stop)}
 	    end
     end.
 
@@ -189,7 +223,7 @@ test(Starter, DrvDir, StartDone) ->
     register(?REG_NAME, self()),
     {group_leader, GL} = process_info(whereis(net_kernel),group_leader),
     group_leader(GL, self()),
-    Start = now(),
+    Start = erlang:monotonic_time(),
     TORs = lists:map(fun (Min) ->
 			     TO = Min*60*1000,
 			     [#timeout_rec{pid = spawn_opt(
@@ -222,7 +256,7 @@ test(Starter, DrvDir, StartDone) ->
 test_loop(TORs, Start) ->
     receive
 	{get_result, ?REG_NAME, Pid} ->
-	    End = now(),
+	    End = erlang:monotonic_time(),
 	    Pid ! {result, ?REG_NAME, get_test_results(TORs), Start, End},
 	    erl_ddll:unload_driver(?DRV_NAME),
 	    erl_ddll:stop(),
diff --git a/erts/emulator/test/map_SUITE.erl b/erts/emulator/test/map_SUITE.erl
index e877f7a240..b739250aad 100644
--- a/erts/emulator/test/map_SUITE.erl
+++ b/erts/emulator/test/map_SUITE.erl
@@ -21,17 +21,24 @@
     ]).
 
 -export([
-	t_build_and_match_literals/1,
-	t_update_literals/1,t_match_and_update_literals/1,
+	t_build_and_match_literals/1, t_build_and_match_literals_large/1,
+	t_update_literals/1, t_update_literals_large/1,
+        t_match_and_update_literals/1, t_match_and_update_literals_large/1,
 	t_update_map_expressions/1,
-	t_update_assoc/1,t_update_exact/1,
-	t_guard_bifs/1, t_guard_sequence/1, t_guard_update/1,
-	t_guard_receive/1, t_guard_fun/1,
+	t_update_assoc/1, t_update_assoc_large/1,
+        t_update_exact/1, t_update_exact_large/1,
+	t_guard_bifs/1,
+        t_guard_sequence/1, t_guard_sequence_large/1,
+        t_guard_update/1, t_guard_update_large/1,
+	t_guard_receive/1, t_guard_receive_large/1,
+        t_guard_fun/1,
+        t_update_deep/1,
 	t_list_comprehension/1,
 	t_map_sort_literals/1,
 	t_map_equal/1,
-	%t_size/1,
+	t_map_compare/1,
 	t_map_size/1,
+	t_is_map/1,
 
 	%% Specific Map BIFs
 	t_bif_map_get/1,
@@ -51,6 +58,10 @@
 	t_erlang_hash/1,
 	t_map_encode_decode/1,
 
+	%% non specific BIF related
+	t_bif_build_and_check/1,
+	t_bif_merge_and_check/1,
+
 	%% maps module not bifs
 	t_maps_fold/1,
 	t_maps_map/1,
@@ -58,25 +69,45 @@
 	t_maps_without/1,
 
 	%% misc
+	t_hashmap_balance/1,
         t_erts_internal_order/1,
+        t_erts_internal_hash/1,
 	t_pdict/1,
 	t_ets/1,
 	t_dets/1,
-	t_tracing/1
+	t_tracing/1,
+
+	%% instruction-level tests
+	t_has_map_fields/1,
+	y_regs/1,
+	badmap_17/1
     ]).
 
 -include_lib("stdlib/include/ms_transform.hrl").
 
+-define(CHECK(Cond,Term),
+	case (catch (Cond)) of
+	    true -> true;
+	    _ -> io:format("###### CHECK FAILED ######~nINPUT:  ~p~n", [Term]),
+		 exit(Term)
+	end).
+
 suite() -> [].
 
 all() -> [
-	t_build_and_match_literals,
-	t_update_literals, t_match_and_update_literals,
+	t_build_and_match_literals, t_build_and_match_literals_large,
+	t_update_literals, t_update_literals_large,
+        t_match_and_update_literals, t_match_and_update_literals_large,
 	t_update_map_expressions,
-	t_update_assoc,t_update_exact,
-	t_guard_bifs, t_guard_sequence, t_guard_update,
-	t_guard_receive,t_guard_fun, t_list_comprehension,
-	t_map_equal,
+	t_update_assoc, t_update_assoc_large,
+        t_update_exact, t_update_exact_large,
+	t_guard_bifs,
+        t_guard_sequence, t_guard_sequence_large,
+        t_guard_update, t_guard_update_large,
+	t_guard_receive, t_guard_receive_large,
+        t_guard_fun, t_list_comprehension,
+        t_update_deep,
+	t_map_equal, t_map_compare,
 	t_map_sort_literals,
 
 	%% Specific Map BIFs
@@ -89,7 +120,11 @@ all() -> [
 
 	%% erlang
 	t_erlang_hash, t_map_encode_decode,
-	t_map_size,
+	t_map_size, t_is_map,
+
+	%% non specific BIF related
+	t_bif_build_and_check,
+	t_bif_merge_and_check,
 
 	%% maps module
 	t_maps_fold, t_maps_map,
@@ -97,10 +132,17 @@ all() -> [
 
 
         %% Other functions
+	t_hashmap_balance,
         t_erts_internal_order,
+        t_erts_internal_hash,
 	t_pdict,
 	t_ets,
-	t_tracing
+	t_tracing,
+
+	%% instruction-level tests
+	t_has_map_fields,
+	y_regs,
+	badmap_17
     ].
 
 groups() -> [].
@@ -126,6 +168,9 @@ t_build_and_match_literals(Config) when is_list(Config) ->
     #{1:=a,2:=b,3:="c","4":="d",<<"5">>:=<<"e">>,{"6",7}:="f",8:=g} =
 	id(#{1=>a,2=>b,3=>"c","4"=>"d",<<"5">>=><<"e">>,{"6",7}=>"f",8=>g}),
 
+    #{[]:=a,42.0:=b,x:={x,y},[a,b]:=list} =
+         id(#{[]=>a,42.0=>b,x=>{x,y},[a,b]=>list}),
+
     #{<<"hi all">> := 1} = id(#{<<"hi",32,"all">> => 1}),
 
     #{a:=X,a:=X=3,b:=4} = id(#{a=>3,b=>4}), % weird but ok =)
@@ -147,17 +192,461 @@ t_build_and_match_literals(Config) when is_list(Config) ->
     {'EXIT',{{badmatch,_},_}} = (catch (#{x:=3} = id(#{x=>"three"}))),
     ok.
 
+t_build_and_match_literals_large(Config) when is_list(Config) ->
+    % normal non-repeating
+    M0 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" }),
+
+    #{10:=a0,20:=b0,30:="c0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M0,
+    #{11:=a1,21:=b1,31:="c1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M0,
+    #{12:=a2,22:=b2,32:="c2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M0,
+    #{13:=a3,23:=b3,33:="c3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M0,
+    #{14:=a4,24:=b4,34:="c4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M0,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M0,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M0,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M0,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M0,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M0,
+
+    60 = map_size(M0),
+    60 = maps:size(M0),
+
+    % with repeating
+    M1 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               10=>na0,20=>nb0,30=>"nc0","40"=>"nd0",<<"50">>=>"ne0",{["00"]}=>"n10",
+               11=>na1,21=>nb1,31=>"nc1","41"=>"nd1",<<"51">>=>"ne1",{["01"]}=>"n11",
+               12=>na2,22=>nb2,32=>"nc2","42"=>"nd2",<<"52">>=>"ne2",{["02"]}=>"n12",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+
+               13=>na3,23=>nb3,33=>"nc3","43"=>"nd3",<<"53">>=>"ne3",{["03"]}=>"n13",
+               14=>na4,24=>nb4,34=>"nc4","44"=>"nd4",<<"54">>=>"ne4",{["04"]}=>"n14",
+
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" }),
+
+    #{10:=na0,20:=nb0,30:="nc0","40":="nd0",<<"50">>:="ne0",{["00"]}:="n10"} = M1,
+    #{11:=na1,21:=nb1,31:="nc1","41":="nd1",<<"51">>:="ne1",{["01"]}:="n11"} = M1,
+    #{12:=na2,22:=nb2,32:="nc2","42":="nd2",<<"52">>:="ne2",{["02"]}:="n12"} = M1,
+    #{13:=na3,23:=nb3,33:="nc3","43":="nd3",<<"53">>:="ne3",{["03"]}:="n13"} = M1,
+    #{14:=na4,24:=nb4,34:="nc4","44":="nd4",<<"54">>:="ne4",{["04"]}:="n14"} = M1,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M1,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M1,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M1,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M1,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M1,
+
+    60 = map_size(M1),
+    60 = maps:size(M1),
+
+    % with floats
+
+    M2 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19",
+
+               10.0=>fa0,20.0=>fb0,30.0=>"fc0",
+               11.0=>fa1,21.0=>fb1,31.0=>"fc1",
+               12.0=>fa2,22.0=>fb2,32.0=>"fc2",
+               13.0=>fa3,23.0=>fb3,33.0=>"fc3",
+               14.0=>fa4,24.0=>fb4,34.0=>"fc4",
+
+               15.0=>fa5,25.0=>fb5,35.0=>"fc5",
+               16.0=>fa6,26.0=>fb6,36.0=>"fc6",
+               17.0=>fa7,27.0=>fb7,37.0=>"fc7",
+               18.0=>fa8,28.0=>fb8,38.0=>"fc8",
+               19.0=>fa9,29.0=>fb9,39.0=>"fc9"}),
+
+    #{10:=a0,20:=b0,30:="c0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M2,
+    #{11:=a1,21:=b1,31:="c1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M2,
+    #{12:=a2,22:=b2,32:="c2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M2,
+    #{13:=a3,23:=b3,33:="c3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M2,
+    #{14:=a4,24:=b4,34:="c4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M2,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M2,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M2,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M2,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M2,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M2,
+
+    #{10.0:=fa0,20.0:=fb0,30.0:="fc0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M2,
+    #{11.0:=fa1,21.0:=fb1,31.0:="fc1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M2,
+    #{12.0:=fa2,22.0:=fb2,32.0:="fc2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M2,
+    #{13.0:=fa3,23.0:=fb3,33.0:="fc3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M2,
+    #{14.0:=fa4,24.0:=fb4,34.0:="fc4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M2,
+
+    #{15.0:=fa5,25.0:=fb5,35.0:="fc5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M2,
+    #{16.0:=fa6,26.0:=fb6,36.0:="fc6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M2,
+    #{17.0:=fa7,27.0:=fb7,37.0:="fc7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M2,
+    #{18.0:=fa8,28.0:=fb8,38.0:="fc8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M2,
+    #{19.0:=fa9,29.0:=fb9,39.0:="fc9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M2,
+
+    90 = map_size(M2),
+    90 = maps:size(M2),
+
+    % with bignums
+    M3 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19",
+
+               10.0=>fa0,20.0=>fb0,30.0=>"fc0",
+               11.0=>fa1,21.0=>fb1,31.0=>"fc1",
+               12.0=>fa2,22.0=>fb2,32.0=>"fc2",
+               13.0=>fa3,23.0=>fb3,33.0=>"fc3",
+               14.0=>fa4,24.0=>fb4,34.0=>"fc4",
+
+               15.0=>fa5,25.0=>fb5,35.0=>"fc5",
+               16.0=>fa6,26.0=>fb6,36.0=>"fc6",
+               17.0=>fa7,27.0=>fb7,37.0=>"fc7",
+               18.0=>fa8,28.0=>fb8,38.0=>"fc8",
+               19.0=>fa9,29.0=>fb9,39.0=>"fc9",
+
+               36893488147419103232=>big1,  73786976294838206464=>big2,
+               147573952589676412928=>big3, 18446744073709551616=>big4,
+               4294967296=>big5,            8589934592=>big6,
+               4294967295=>big7,            67108863=>big8
+             }),
+
+    #{10:=a0,20:=b0,30:="c0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M3,
+    #{11:=a1,21:=b1,31:="c1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M3,
+    #{12:=a2,22:=b2,32:="c2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M3,
+    #{13:=a3,23:=b3,33:="c3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M3,
+    #{14:=a4,24:=b4,34:="c4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M3,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M3,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M3,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M3,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M3,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M3,
+
+    #{10.0:=fa0,20.0:=fb0,30.0:="fc0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M3,
+    #{11.0:=fa1,21.0:=fb1,31.0:="fc1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M3,
+    #{12.0:=fa2,22.0:=fb2,32.0:="fc2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M3,
+    #{13.0:=fa3,23.0:=fb3,33.0:="fc3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M3,
+    #{14.0:=fa4,24.0:=fb4,34.0:="fc4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M3,
+
+    #{15.0:=fa5,25.0:=fb5,35.0:="fc5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M3,
+    #{16.0:=fa6,26.0:=fb6,36.0:="fc6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M3,
+    #{17.0:=fa7,27.0:=fb7,37.0:="fc7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M3,
+    #{18.0:=fa8,28.0:=fb8,38.0:="fc8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M3,
+    #{19.0:=fa9,29.0:=fb9,39.0:="fc9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M3,
+
+    #{36893488147419103232:=big1,67108863:=big8,"45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M3,
+    #{147573952589676412928:=big3,8589934592:=big6,"46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M3,
+    #{4294967296:=big5,18446744073709551616:=big4,"47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M3,
+    #{4294967295:=big7,73786976294838206464:=big2,"48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M3,
+
+    98 = map_size(M3),
+    98 = maps:size(M3),
+
+    %% with maps
+
+    M4 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19",
+
+               10.0=>fa0,20.0=>fb0,30.0=>"fc0",
+               11.0=>fa1,21.0=>fb1,31.0=>"fc1",
+               12.0=>fa2,22.0=>fb2,32.0=>"fc2",
+               13.0=>fa3,23.0=>fb3,33.0=>"fc3",
+               14.0=>fa4,24.0=>fb4,34.0=>"fc4",
+
+               15.0=>fa5,25.0=>fb5,35.0=>"fc5",
+               16.0=>fa6,26.0=>fb6,36.0=>"fc6",
+               17.0=>fa7,27.0=>fb7,37.0=>"fc7",
+               18.0=>fa8,28.0=>fb8,38.0=>"fc8",
+               19.0=>fa9,29.0=>fb9,39.0=>"fc9",
+
+               #{ one => small, map => key } => "small map key 1",
+               #{ second => small, map => key } => "small map key 2",
+               #{ third => small, map => key } => "small map key 3",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 2" }),
+
+    #{10:=a0,20:=b0,30:="c0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M4,
+    #{11:=a1,21:=b1,31:="c1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M4,
+    #{12:=a2,22:=b2,32:="c2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M4,
+    #{13:=a3,23:=b3,33:="c3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M4,
+    #{14:=a4,24:=b4,34:="c4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M4,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M4,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M4,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M4,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M4,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M4,
+
+    #{ #{ one => small, map => key }    := "small map key 1",
+       #{ second => small, map => key } := "small map key 2",
+       #{ third => small, map => key }  := "small map key 3" } = M4,
+
+    #{ #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+          11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+          12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+          13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+          14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+          15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+          16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+          17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+          18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+          19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } := "large map key 1",
+
+       #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+          11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+          12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+          13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+          14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+          15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+          k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+          17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+          18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+          19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } := "large map key 2" } = M4,
+
+
+    #{ 15:=V1,25:=b5,35:=V2,"45":="d5",<<"55">>:=V3,{["05"]}:="15",
+       #{ one => small, map => key }    := "small map key 1",
+       #{ second => small, map => key } := V4,
+       #{ third => small, map => key }  := "small map key 3",
+       #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+          11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+          12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+          13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+          14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+          15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+          16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+          17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+          18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+          19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } := V5 } = M4,
+
+    a5   = V1,
+    "c5" = V2,
+    "e5" = V3,
+    "small map key 2" = V4,
+    "large map key 1" = V5,
+
+    95 = map_size(M4),
+    95 = maps:size(M4),
+
+    % call for value
+
+    M5 = id(#{ 10=>id(a0),20=>b0,30=>id("c0"),"40"=>"d0",<<"50">>=>id("e0"),{["00"]}=>"10",
+               11=>id(a1),21=>b1,31=>id("c1"),"41"=>"d1",<<"51">>=>id("e1"),{["01"]}=>"11",
+               12=>id(a2),22=>b2,32=>id("c2"),"42"=>"d2",<<"52">>=>id("e2"),{["02"]}=>"12",
+               13=>id(a3),23=>b3,33=>id("c3"),"43"=>"d3",<<"53">>=>id("e3"),{["03"]}=>"13",
+               14=>id(a4),24=>b4,34=>id("c4"),"44"=>"d4",<<"54">>=>id("e4"),{["04"]}=>"14",
+
+               15=>id(a5),25=>b5,35=>id("c5"),"45"=>"d5",<<"55">>=>id("e5"),{["05"]}=>"15",
+               16=>id(a6),26=>b6,36=>id("c6"),"46"=>"d6",<<"56">>=>id("e6"),{["06"]}=>"16",
+               17=>id(a7),27=>b7,37=>id("c7"),"47"=>"d7",<<"57">>=>id("e7"),{["07"]}=>"17",
+               18=>id(a8),28=>b8,38=>id("c8"),"48"=>"d8",<<"58">>=>id("e8"),{["08"]}=>"18",
+               19=>id(a9),29=>b9,39=>id("c9"),"49"=>"d9",<<"59">>=>id("e9"),{["09"]}=>"19",
+
+               10.0=>fa0,20.0=>id(fb0),30.0=>id("fc0"),
+               11.0=>fa1,21.0=>id(fb1),31.0=>id("fc1"),
+               12.0=>fa2,22.0=>id(fb2),32.0=>id("fc2"),
+               13.0=>fa3,23.0=>id(fb3),33.0=>id("fc3"),
+               14.0=>fa4,24.0=>id(fb4),34.0=>id("fc4"),
+
+               15.0=>fa5,25.0=>id(fb5),35.0=>id("fc5"),
+               16.0=>fa6,26.0=>id(fb6),36.0=>id("fc6"),
+               17.0=>fa7,27.0=>id(fb7),37.0=>id("fc7"),
+               18.0=>fa8,28.0=>id(fb8),38.0=>id("fc8"),
+               19.0=>fa9,29.0=>id(fb9),39.0=>id("fc9"),
+
+               #{ one => small, map => key } => id("small map key 1"),
+               #{ second => small, map => key } => "small map key 2",
+               #{ third => small, map => key } => "small map key 3",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => id("large map key 2") }),
+
+    #{10:=a0,20:=b0,30:="c0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M5,
+    #{11:=a1,21:=b1,31:="c1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M5,
+    #{12:=a2,22:=b2,32:="c2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M5,
+    #{13:=a3,23:=b3,33:="c3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M5,
+    #{14:=a4,24:=b4,34:="c4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M5,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M5,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M5,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M5,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M5,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M5,
+
+    #{ #{ one => small, map => key }    := "small map key 1",
+       #{ second => small, map => key } := "small map key 2",
+       #{ third => small, map => key }  := "small map key 3" } = M5,
+
+    #{ #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+          11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+          12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+          13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+          14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+          15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+          16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+          17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+          18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+          19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } := "large map key 1",
+
+       #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+          11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+          12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+          13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+          14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+          15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+          k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+          17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+          18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+          19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } := "large map key 2" } = M5,
+
+    95 = map_size(M5),
+    95 = maps:size(M5),
+
+    %% remember
+
+    #{10:=a0,20:=b0,30:="c0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M0,
+    #{11:=a1,21:=b1,31:="c1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M0,
+    #{12:=a2,22:=b2,32:="c2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M0,
+    #{13:=a3,23:=b3,33:="c3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M0,
+    #{14:=a4,24:=b4,34:="c4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M0,
+
+    #{10:=na0,20:=nb0,30:="nc0","40":="nd0",<<"50">>:="ne0",{["00"]}:="n10"} = M1,
+    #{11:=na1,21:=nb1,31:="nc1","41":="nd1",<<"51">>:="ne1",{["01"]}:="n11"} = M1,
+    #{12:=na2,22:=nb2,32:="nc2","42":="nd2",<<"52">>:="ne2",{["02"]}:="n12"} = M1,
+    #{13:=na3,23:=nb3,33:="nc3","43":="nd3",<<"53">>:="ne3",{["03"]}:="n13"} = M1,
+    #{14:=na4,24:=nb4,34:="nc4","44":="nd4",<<"54">>:="ne4",{["04"]}:="n14"} = M1,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M1,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M1,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M1,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M1,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M1,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M2,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M2,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M2,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M2,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M2,
+
+    #{10.0:=fa0,20.0:=fb0,30.0:="fc0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M2,
+    #{11.0:=fa1,21.0:=fb1,31.0:="fc1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M2,
+    #{12.0:=fa2,22.0:=fb2,32.0:="fc2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M2,
+    #{13.0:=fa3,23.0:=fb3,33.0:="fc3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M2,
+    #{14.0:=fa4,24.0:=fb4,34.0:="fc4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M2,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M3,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M3,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M3,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M3,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M3,
+
+    #{10.0:=fa0,20.0:=fb0,30.0:="fc0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M3,
+    #{11.0:=fa1,21.0:=fb1,31.0:="fc1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M3,
+    #{12.0:=fa2,22.0:=fb2,32.0:="fc2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M3,
+    #{13.0:=fa3,23.0:=fb3,33.0:="fc3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M3,
+    #{14.0:=fa4,24.0:=fb4,34.0:="fc4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M3,
+
+    #{15.0:=fa5,25.0:=fb5,35.0:="fc5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M3,
+    #{16.0:=fa6,26.0:=fb6,36.0:="fc6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M3,
+    #{17.0:=fa7,27.0:=fb7,37.0:="fc7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M3,
+    #{18.0:=fa8,28.0:=fb8,38.0:="fc8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M3,
+    #{19.0:=fa9,29.0:=fb9,39.0:="fc9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M3,
+
+    #{36893488147419103232:=big1,67108863:=big8,"45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M3,
+    #{147573952589676412928:=big3,8589934592:=big6,"46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M3,
+    #{4294967296:=big5,18446744073709551616:=big4,"47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M3,
+    #{4294967295:=big7,73786976294838206464:=big2,"48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M3,
 
-%% Tests size(Map).
-%% not implemented, perhaps it shouldn't be either
+    ok.
 
-%t_size(Config) when is_list(Config) ->
-%    0 = size(#{}),
-%    1 = size(#{a=>1}),
-%    1 = size(#{a=>#{a=>1}}),
-%    2 = size(#{a=>1, b=>2}),
-%    3 = size(#{a=>1, b=>2, b=>"3"}),
-%    ok.
 
 t_map_size(Config) when is_list(Config) ->
     0 = map_size(id(#{})),
@@ -174,16 +663,108 @@ t_map_size(Config) when is_list(Config) ->
     true  = map_is_size(M#{ "a" => 2}, 2),
     false = map_is_size(M#{ "c" => 2}, 2),
 
+    Ks = [build_key(fun(K) -> <<1,K:32,1>> end,I)||I<-lists:seq(1,100)],
+    ok = build_and_check_size(Ks,0,#{}),
+
+    %% try deep collisions
+    %% statistically we get another subtree at 50k -> 100k elements
+    %% Try to be nice and don't use too much memory in the testcase,
+
+    N  = 500000,
+    Is = lists:seq(1,N),
+    N  = map_size(maps:from_list([{I,I}||I<-Is])),
+    N  = map_size(maps:from_list([{<<I:32>>,I}||I<-Is])),
+    N  = map_size(maps:from_list([{integer_to_list(I),I}||I<-Is])),
+    N  = map_size(maps:from_list([{float(I),I}||I<-Is])),
+
     %% Error cases.
-    {'EXIT',{badarg,_}} = (catch map_size([])),
-    {'EXIT',{badarg,_}} = (catch map_size(<<1,2,3>>)),
-    {'EXIT',{badarg,_}} = (catch map_size(1)),
+    do_badmap(fun(T) ->
+                    {'EXIT',{{badmap,T},_}} =
+                      (catch map_size(T))
+              end),
+    ok.
+
+build_and_check_size([K|Ks],N,M0) ->
+    N = map_size(M0),
+    M1 = M0#{ K => K },
+    build_and_check_size(Ks,N + 1,M1);
+build_and_check_size([],N,M) ->
+    N = map_size(M),
     ok.
 
 map_is_size(M,N) when map_size(M) =:= N -> true;
 map_is_size(_,_) -> false.
 
+t_is_map(Config) when is_list(Config) ->
+    true = is_map(#{}),
+    true = is_map(#{a=>1}),
+    false = is_map({a,b}),
+    false = is_map(x),
+    if is_map(#{}) -> ok end,
+    if is_map(#{b=>1}) -> ok end,
+    if not is_map([1,2,3]) -> ok end,
+    if not is_map(x) -> ok end,
+    ok.
+
 % test map updates without matching
+t_update_literals_large(Config) when is_list(Config) ->
+    Map = id(#{ 10=>id(a0),20=>b0,30=>id("c0"),"40"=>"d0",<<"50">>=>id("e0"),{["00"]}=>"10",
+                11=>id(a1),21=>b1,31=>id("c1"),"41"=>"d1",<<"51">>=>id("e1"),{["01"]}=>"11",
+                12=>id(a2),22=>b2,32=>id("c2"),"42"=>"d2",<<"52">>=>id("e2"),{["02"]}=>"12",
+                13=>id(a3),23=>b3,33=>id("c3"),"43"=>"d3",<<"53">>=>id("e3"),{["03"]}=>"13",
+                14=>id(a4),24=>b4,34=>id("c4"),"44"=>"d4",<<"54">>=>id("e4"),{["04"]}=>"14",
+
+                15=>id(a5),25=>b5,35=>id("c5"),"45"=>"d5",<<"55">>=>id("e5"),{["05"]}=>"15",
+                16=>id(a6),26=>b6,36=>id("c6"),"46"=>"d6",<<"56">>=>id("e6"),{["06"]}=>"16",
+                17=>id(a7),27=>b7,37=>id("c7"),"47"=>"d7",<<"57">>=>id("e7"),{["07"]}=>"17",
+                18=>id(a8),28=>b8,38=>id("c8"),"48"=>"d8",<<"58">>=>id("e8"),{["08"]}=>"18",
+                19=>id(a9),29=>b9,39=>id("c9"),"49"=>"d9",<<"59">>=>id("e9"),{["09"]}=>"19",
+
+                10.0=>fa0,20.0=>id(fb0),30.0=>id("fc0"),
+                11.0=>fa1,21.0=>id(fb1),31.0=>id("fc1"),
+                12.0=>fa2,22.0=>id(fb2),32.0=>id("fc2"),
+                13.0=>fa3,23.0=>id(fb3),33.0=>id("fc3"),
+                14.0=>fa4,24.0=>id(fb4),34.0=>id("fc4"),
+
+                15.0=>fa5,25.0=>id(fb5),35.0=>id("fc5"),
+                16.0=>fa6,26.0=>id(fb6),36.0=>id("fc6"),
+                17.0=>fa7,27.0=>id(fb7),37.0=>id("fc7"),
+                18.0=>fa8,28.0=>id(fb8),38.0=>id("fc8"),
+                19.0=>fa9,29.0=>id(fb9),39.0=>id("fc9"),
+
+                #{ one => small, map => key } => id("small map key 1"),
+                #{ second => small, map => key } => "small map key 2",
+                #{ third => small, map => key } => "small map key 3",
+
+                #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                   11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                   12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                   13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                   14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                   15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                   16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                   17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                   18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                   19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+                #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                   11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                   12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                   13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                   14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                   15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                   k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                   17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                   18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                   19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => id("large map key 2") }),
+
+    #{x:="d",q:="4"} = loop_update_literals_x_q(Map, [
+		{"a","1"},{"b","2"},{"c","3"},{"d","4"}
+	]),
+    ok.
+
 t_update_literals(Config) when is_list(Config) ->
     Map = #{x=>1,y=>2,z=>3,q=>4},
     #{x:="d",q:="4"} = loop_update_literals_x_q(Map, [
@@ -191,13 +772,15 @@ t_update_literals(Config) when is_list(Config) ->
 	]),
     ok.
 
+
 loop_update_literals_x_q(Map, []) -> Map;
 loop_update_literals_x_q(Map, [{X,Q}|Vs]) ->
     loop_update_literals_x_q(Map#{q=>Q,x=>X},Vs).
 
 % test map updates with matching
 t_match_and_update_literals(Config) when is_list(Config) ->
-    Map = #{x=>0,y=>"untouched",z=>"also untouched",q=>1},
+    Map = #{ x=>0,y=>"untouched",z=>"also untouched",q=>1,
+             #{ "one" => small, map => key } => "small map key 1" },
     #{x:=16,q:=21,y:="untouched",z:="also untouched"} = loop_match_and_update_literals_x_q(Map, [
 	    {1,2},{3,4},{5,6},{7,8}
 	]),
@@ -211,8 +794,78 @@ t_match_and_update_literals(Config) when is_list(Config) ->
     #{ 4 := another_number, int := 3 } = M2#{ 4 => another_number },
     ok.
 
+t_match_and_update_literals_large(Config) when is_list(Config) ->
+    Map = id(#{ 10=>id(a0),20=>b0,30=>id("c0"),"40"=>"d0",<<"50">>=>id("e0"),{["00"]}=>"10",
+                11=>id(a1),21=>b1,31=>id("c1"),"41"=>"d1",<<"51">>=>id("e1"),{["01"]}=>"11",
+                12=>id(a2),22=>b2,32=>id("c2"),"42"=>"d2",<<"52">>=>id("e2"),{["02"]}=>"12",
+                13=>id(a3),23=>b3,33=>id("c3"),"43"=>"d3",<<"53">>=>id("e3"),{["03"]}=>"13",
+                14=>id(a4),24=>b4,34=>id("c4"),"44"=>"d4",<<"54">>=>id("e4"),{["04"]}=>"14",
+
+                15=>id(a5),25=>b5,35=>id("c5"),"45"=>"d5",<<"55">>=>id("e5"),{["05"]}=>"15",
+                16=>id(a6),26=>b6,36=>id("c6"),"46"=>"d6",<<"56">>=>id("e6"),{["06"]}=>"16",
+                17=>id(a7),27=>b7,37=>id("c7"),"47"=>"d7",<<"57">>=>id("e7"),{["07"]}=>"17",
+                18=>id(a8),28=>b8,38=>id("c8"),"48"=>"d8",<<"58">>=>id("e8"),{["08"]}=>"18",
+                19=>id(a9),29=>b9,39=>id("c9"),"49"=>"d9",<<"59">>=>id("e9"),{["09"]}=>"19",
+
+                10.0=>fa0,20.0=>id(fb0),30.0=>id("fc0"),
+                11.0=>fa1,21.0=>id(fb1),31.0=>id("fc1"),
+                12.0=>fa2,22.0=>id(fb2),32.0=>id("fc2"),
+                13.0=>fa3,23.0=>id(fb3),33.0=>id("fc3"),
+                14.0=>fa4,24.0=>id(fb4),34.0=>id("fc4"),
+
+                15.0=>fa5,25.0=>id(fb5),35.0=>id("fc5"),
+                16.0=>fa6,26.0=>id(fb6),36.0=>id("fc6"),
+                17.0=>fa7,27.0=>id(fb7),37.0=>id("fc7"),
+                18.0=>fa8,28.0=>id(fb8),38.0=>id("fc8"),
+                19.0=>fa9,29.0=>id(fb9),39.0=>id("fc9"),
+
+                x=>0,y=>"untouched",z=>"also untouched",q=>1,
+
+                #{ "one" => small, map => key } => id("small map key 1"),
+                #{ second => small, map => key } => "small map key 2",
+                #{ third => small, map => key } => "small map key 3",
+
+                #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                   11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                   12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                   13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                   14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                   15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                   16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                   17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                   18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                   19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+                #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                   11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                   12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                   13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                   14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                   15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                   k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                   17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                   18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                   19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => id("large map key 2") }),
+
+    #{x:=16,q:=21,y:="untouched",z:="also untouched"} = loop_match_and_update_literals_x_q(Map, [
+	    {1,2},{3,4},{5,6},{7,8}
+	]),
+    M0 = id(Map#{ "hi" => "hello", int => 3, <<"key">> => <<"value">>,
+                  4 => number, 18446744073709551629 => wat}),
+    M1 = id(Map#{}),
+    M2 = M1#{ "hi" => "hello", int => 3, <<"key">> => <<"value">>,
+              4 => number, 18446744073709551629 => wat},
+    M0 = M2,
+
+    #{ 4 := another_number, int := 3 } = M2#{ 4 => another_number },
+    ok.
+
+
 loop_match_and_update_literals_x_q(Map, []) -> Map;
-loop_match_and_update_literals_x_q(#{q:=Q0,x:=X0} = Map, [{X,Q}|Vs]) ->
+loop_match_and_update_literals_x_q(#{ q:=Q0, x:=X0,
+                                     #{ "one" => small, map => key } := "small map key 1" } = Map, [{X,Q}|Vs]) ->
     loop_match_and_update_literals_x_q(Map#{q=>Q0+Q,x=>X0+X},Vs).
 
 
@@ -224,13 +877,17 @@ t_update_map_expressions(Config) when is_list(Config) ->
 
     #{ a :=42, b:=42, c:=42 } = (maps:from_list([{a,1},{b,2},{c,3}]))#{ a := 42, b := 42, c := 42 },
     #{ "a" :=1, "b":=42, "c":=42 } = (maps:from_list([{"a",1},{"b",2}]))#{ "b" := 42, "c" => 42 },
+    Ks = lists:seq($a,$z),
+    #{ "aa" := {$a,$a}, "ac":=41, "dc":=42 } =
+        (maps:from_list([{[K1,K2],{K1,K2}}|| K1 <- Ks, K2 <- Ks]))#{ "ac" := 41, "dc" => 42 },
 
-    %% Error cases, FIXME: should be 'badmap'?
-    {'EXIT',{badarg,_}} = (catch (id(<<>>))#{ a := 42, b => 2 }),
-    {'EXIT',{badarg,_}} = (catch (id([]))#{ a := 42, b => 2 }),
+    %% Error cases.
+    do_badmap(fun(T) ->
+		      {'EXIT',{{badmap,T},_}} =
+			  (catch (T)#{a:=42,b=>2})
+	      end),
     ok.
 
-
 t_update_assoc(Config) when is_list(Config) ->
     M0 = id(#{1=>a,2=>b,3.0=>c,4=>d,5=>e}),
 
@@ -243,8 +900,75 @@ t_update_assoc(Config) when is_list(Config) ->
     M2 = M0#{3.0:=wrong,3.0=>new},
 
     %% Errors cases.
-    BadMap = id(badmap),
-    {'EXIT',{badarg,_}} = (catch BadMap#{nonexisting=>val}),
+    do_badmap(fun(T) ->
+		      {'EXIT',{{badmap,T},_}} =
+			  (catch T#{nonexisting=>val})
+	      end),
+    ok.
+
+
+t_update_assoc_large(Config) when is_list(Config) ->
+    M0 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19",
+
+               10.0=>fa0,20.0=>fb0,30.0=>"fc0",
+               11.0=>fa1,21.0=>fb1,31.0=>"fc1",
+               12.0=>fa2,22.0=>fb2,32.0=>"fc2",
+               13.0=>fa3,23.0=>fb3,33.0=>"fc3",
+               14.0=>fa4,24.0=>fb4,34.0=>"fc4",
+
+               15.0=>fa5,25.0=>fb5,35.0=>"fc5",
+               16.0=>fa6,26.0=>fb6,36.0=>"fc6",
+               17.0=>fa7,27.0=>fb7,37.0=>"fc7",
+               18.0=>fa8,28.0=>fb8,38.0=>"fc8",
+               19.0=>fa9,29.0=>fb9,39.0=>"fc9",
+
+               #{ one => small, map => key } => "small map key 1",
+               #{ second => small, map => key } => "small map key 2",
+               #{ third => small, map => key } => "small map key 3",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 2" }),
+
+
+    M1 = M0#{1=>42,2=>100,4=>[a,b,c]},
+    #{1:=42,2:=100,10.0:=fa0,4:=[a,b,c],25:=b5} = M1,
+    #{ 10:=43, 24:=b4, 15:=a5, 35:="c5", 2.0:=100, 13.0:=fa3, 4.0:=[a,b,c]} =
+        M0#{1.0=>float,10:=43,2.0=>wrong,2.0=>100,4.0=>[a,b,c]},
+
+    M2 = M0#{13.0=>new},
+    #{10:=a0,20:=b0,13.0:=new,"40":="d0",<<"50">>:="e0"} = M2,
+    M2 = M0#{13.0:=wrong,13.0=>new},
 
     ok.
 
@@ -267,15 +991,124 @@ t_update_exact(Config) when is_list(Config) ->
 	1 := update2, 1.0 := new_val2, 1.0 => new_val3,
 	1.0 => new_val4 },
 
+    %% Errors cases.
+    do_badmap(fun(T) ->
+		      {'EXIT',{{badmap,T},_}} =
+			  (catch T#{nonexisting=>val})
+	      end),
+    Empty = id(#{}),
+    {'EXIT',{{badkey,nonexisting},_}} = (catch Empty#{nonexisting:=val}),
+    {'EXIT',{{badkey,nonexisting},_}} = (catch M0#{nonexisting:=val}),
+    {'EXIT',{{badkey,1.0},_}} = (catch M0#{1.0:=v,1.0=>v2}),
+    {'EXIT',{{badkey,42},_}} = (catch M0#{42.0:=v,42:=v2}),
+    {'EXIT',{{badkey,42.0},_}} = (catch M0#{42=>v1,42.0:=v2,42:=v3}),
+
+    ok.
+
+t_update_exact_large(Config) when is_list(Config) ->
+    M0 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19",
+
+               10.0=>fa0,20.0=>fb0,30.0=>"fc0",
+               11.0=>fa1,21.0=>fb1,31.0=>"fc1",
+               12.0=>fa2,22.0=>fb2,32.0=>"fc2",
+               13.0=>fa3,23.0=>fb3,33.0=>"fc3",
+               14.0=>fa4,24.0=>fb4,34.0=>"fc4",
+
+               15.0=>fa5,25.0=>fb5,35.0=>"fc5",
+               16.0=>fa6,26.0=>fb6,36.0=>"fc6",
+               17.0=>fa7,27.0=>fb7,37.0=>"fc7",
+               18.0=>fa8,28.0=>fb8,38.0=>"fc8",
+               19.0=>fa9,29.0=>fb9,39.0=>"fc9",
+
+               #{ one => small, map => key } => "small map key 1",
+               #{ second => small, map => key } => "small map key 2",
+               #{ third => small, map => key } => "small map key 3",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 2" }),
+
+
+    M1 = M0#{10:=42,<<"55">>:=100,10.0:=[a,b,c]},
+    #{ 10:=42,<<"55">>:=100,{["05"]}:="15",10.0:=[a,b,c],
+       #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+          11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+          12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+          13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+          14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+          15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+          16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+          17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+          18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+          19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } := "large map key 1" } = M1,
+
+    M1 = M0#{10:=wrong,10=>42,<<"55">>=>wrong,<<"55">>:=100,10.0:=[a,b,c]},
+
+    M2 = M0#{13.0:=new},
+    #{10:=a0,20:=b0,13.0:=new} = M2,
+    M2 = M0#{13.0=>wrong,13.0:=new},
 
     %% Errors cases.
-    {'EXIT',{badarg,_}} = (catch M0#{nonexisting:=val}),
-    {'EXIT',{badarg,_}} = (catch M0#{1.0:=v,1.0=>v2}),
-    {'EXIT',{badarg,_}} = (catch M0#{42.0:=v,42:=v2}),
-    {'EXIT',{badarg,_}} = (catch M0#{42=>v1,42.0:=v2,42:=v3}),
+    {'EXIT',{{badkey,nonexisting},_}} = (catch M0#{nonexisting:=val}),
+    {'EXIT',{{badkey,1.0},_}} = (catch M0#{1.0:=v,1.0=>v2}),
+    {'EXIT',{{badkey,42},_}} = (catch M0#{42.0:=v,42:=v2}),
+    {'EXIT',{{badkey,42.0},_}} = (catch M0#{42=>v1,42.0:=v2,42:=v3}),
 
     ok.
 
+t_update_deep(Config) when is_list(Config) ->
+    N = 250000,
+    M0 = maps:from_list([{integer_to_list(I),a}||I<-lists:seq(1,N)]),
+    #{ "1" := a, "10" := a, "100" := a, "1000" := a, "10000" := a } = M0,
+
+    M1 = M0#{ "1" := b, "10" := b, "100" := b, "1000" := b, "10000" := b },
+    #{ "1" := a, "10" := a, "100" := a, "1000" := a, "10000" := a } = M0,
+    #{ "1" := b, "10" := b, "100" := b, "1000" := b, "10000" := b } = M1,
+
+    M2 = M0#{ "1" => c, "10" => c, "100" => c, "1000" => c, "10000" => c },
+    #{ "1" := a, "10" := a, "100" := a, "1000" := a, "10000" := a } = M0,
+    #{ "1" := b, "10" := b, "100" := b, "1000" := b, "10000" := b } = M1,
+    #{ "1" := c, "10" := c, "100" := c, "1000" := c, "10000" := c } = M2,
+
+    M3 = M2#{ "n1" => d, "n10" => d, "n100" => d, "n1000" => d, "n10000" => d },
+    #{  "1" := a,  "10" := a,  "100" := a,  "1000" := a,  "10000" := a } = M0,
+    #{  "1" := b,  "10" := b,  "100" := b,  "1000" := b,  "10000" := b } = M1,
+    #{  "1" := c,  "10" := c,  "100" := c,  "1000" := c,  "10000" := c } = M2,
+    #{  "1" := c,  "10" := c,  "100" := c,  "1000" := c,  "10000" := c } = M3,
+    #{ "n1" := d, "n10" := d, "n100" := d, "n1000" := d, "n10000" := d } = M3,
+    ok.
+
 t_guard_bifs(Config) when is_list(Config) ->
     true   = map_guard_head(#{a=>1}),
     false  = map_guard_head([]),
@@ -305,12 +1138,82 @@ t_guard_sequence(Config) when is_list(Config) ->
 	{3,gg,M3}    = map_guard_sequence_2(M3 = id(#{a=>gg, b=>4})),
 	{4,sc,sc,M4} = map_guard_sequence_2(M4 = id(#{a=>sc, b=>3, c=>sc2})),
 	{5,kk,kk,M5} = map_guard_sequence_2(M5 = id(#{a=>kk, b=>other, c=>sc2})),
-	
+
 	%% error case
 	{'EXIT',{function_clause,_}} = (catch map_guard_sequence_1(#{seq=>6,val=>id("e")})),
 	{'EXIT',{function_clause,_}} = (catch map_guard_sequence_2(#{b=>5})),
 	ok.
 
+t_guard_sequence_large(Config) when is_list(Config) ->
+    M0 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00",03]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01",03]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02",03]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03",03]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04",03]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05",03]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06",03]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07",03]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08",03]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09",03]}=>"19",
+
+               10.0=>fa0,20.0=>fb0,30.0=>"fc0",
+               11.0=>fa1,21.0=>fb1,31.0=>"fc1",
+               12.0=>fa2,22.0=>fb2,32.0=>"fc2",
+               13.0=>fa3,23.0=>fb3,33.0=>"fc3",
+               14.0=>fa4,24.0=>fb4,34.0=>"fc4",
+
+               15.0=>fa5,25.0=>fb5,35.0=>"fc5",
+               16.0=>fa6,26.0=>fb6,36.0=>"fc6",
+               17.0=>fa7,27.0=>fb7,37.0=>"fc7",
+               18.0=>fa8,28.0=>fb8,38.0=>"fc8",
+               19.0=>fa9,29.0=>fb9,39.0=>"fc9",
+
+               #{ one => small, map => key } => "small map key 1",
+               #{ second => small, map => key } => "small map key 2",
+               #{ third => small, map => key } => "small map key 3",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 2" }),
+
+	{1, "a"} = map_guard_sequence_1(M0#{seq=>1,val=>id("a")}),
+	{2, "b"} = map_guard_sequence_1(M0#{seq=>2,val=>id("b")}),
+	{3, "c"} = map_guard_sequence_1(M0#{seq=>3,val=>id("c")}),
+	{4, "d"} = map_guard_sequence_1(M0#{seq=>4,val=>id("d")}),
+	{5, "e"} = map_guard_sequence_1(M0#{seq=>5,val=>id("e")}),
+
+	{1,M1}       = map_guard_sequence_2(M1 = id(M0#{a=>3})),
+	{2,M2}       = map_guard_sequence_2(M2 = id(M0#{a=>4, b=>4})),
+	{3,gg,M3}    = map_guard_sequence_2(M3 = id(M0#{a=>gg, b=>4})),
+	{4,sc,sc,M4} = map_guard_sequence_2(M4 = id(M0#{a=>sc, b=>3, c=>sc2})),
+	{5,kk,kk,M5} = map_guard_sequence_2(M5 = id(M0#{a=>kk, b=>other, c=>sc2})),
+
+	{'EXIT',{function_clause,_}} = (catch map_guard_sequence_1(M0#{seq=>6,val=>id("e")})),
+	{'EXIT',{function_clause,_}} = (catch map_guard_sequence_2(M0#{b=>5})),
+        ok.
+
+
 map_guard_sequence_1(#{seq:=1=Seq, val:=Val}) -> {Seq,Val};
 map_guard_sequence_1(#{seq:=2=Seq, val:=Val}) -> {Seq,Val};
 map_guard_sequence_1(#{seq:=3=Seq, val:=Val}) -> {Seq,Val};
@@ -330,6 +1233,66 @@ t_guard_update(Config) when is_list(Config) ->
     second = map_guard_update(#{y=>old}, #{x=>second,y=>old}),
     ok.
 
+t_guard_update_large(Config) when is_list(Config) ->
+    M0 = id(#{ 70=>a0,80=>b0,90=>"c0","40"=>"d0",<<"50">>=>"e0",{["00",03]}=>"10",
+               71=>a1,81=>b1,91=>"c1","41"=>"d1",<<"51">>=>"e1",{["01",03]}=>"11",
+               72=>a2,82=>b2,92=>"c2","42"=>"d2",<<"52">>=>"e2",{["02",03]}=>"12",
+               73=>a3,83=>b3,93=>"c3","43"=>"d3",<<"53">>=>"e3",{["03",03]}=>"13",
+               74=>a4,84=>b4,94=>"c4","44"=>"d4",<<"54">>=>"e4",{["04",03]}=>"14",
+
+               75=>a5,85=>b5,95=>"c5","45"=>"d5",<<"55">>=>"e5",{["05",03]}=>"15",
+               76=>a6,86=>b6,96=>"c6","46"=>"d6",<<"56">>=>"e6",{["06",03]}=>"16",
+               77=>a7,87=>b7,97=>"c7","47"=>"d7",<<"57">>=>"e7",{["07",03]}=>"17",
+               78=>a8,88=>b8,98=>"c8","48"=>"d8",<<"58">>=>"e8",{["08",03]}=>"18",
+               79=>a9,89=>b9,99=>"c9","49"=>"d9",<<"59">>=>"e9",{["09",03]}=>"19",
+
+               70.0=>fa0,80.0=>fb0,90.0=>"fc0",
+               71.0=>fa1,81.0=>fb1,91.0=>"fc1",
+               72.0=>fa2,82.0=>fb2,92.0=>"fc2",
+               73.0=>fa3,83.0=>fb3,93.0=>"fc3",
+               74.0=>fa4,84.0=>fb4,94.0=>"fc4",
+
+               75.0=>fa5,85.0=>fb5,95.0=>"fc5",
+               76.0=>fa6,86.0=>fb6,96.0=>"fc6",
+               77.0=>fa7,87.0=>fb7,97.0=>"fc7",
+               78.0=>fa8,88.0=>fb8,98.0=>"fc8",
+               79.0=>fa9,89.0=>fb9,99.0=>"fc9",
+
+               #{ one => small, map => key } => "small map key 1",
+               #{ second => small, map => key } => "small map key 2",
+               #{ third => small, map => key } => "small map key 3",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 2" }),
+
+
+    error  = map_guard_update(M0#{},M0#{}),
+    first  = map_guard_update(M0#{},M0#{x=>first}),
+    second = map_guard_update(M0#{y=>old}, M0#{x=>second,y=>old}),
+    ok.
+
+
 map_guard_update(M1, M2) when M1#{x=>first}  =:= M2 -> first;
 map_guard_update(M1, M2) when M1#{x=>second} =:= M2 -> second;
 map_guard_update(_, _) -> error.
@@ -359,6 +1322,42 @@ t_guard_receive(Config) when is_list(Config) ->
     done = call(Pid, done),
     ok.
 
+-define(t_guard_receive_large_procs, 1500).
+
+t_guard_receive_large(Config) when is_list(Config) ->
+    M = lists:foldl(fun(_,#{procs := Ps } = M) ->
+                            M#{ procs := Ps#{ spawn_link(fun() -> grecv_loop() end) => 0 }}
+                    end, #{procs => #{}, done => 0}, lists:seq(1,?t_guard_receive_large_procs)),
+    lists:foreach(fun(Pid) ->
+                          Pid ! {self(), hello}
+                  end, maps:keys(maps:get(procs,M))),
+    ok = guard_receive_large_loop(M),
+    ok.
+
+guard_receive_large_loop(#{done := ?t_guard_receive_large_procs}) ->
+    ok;
+guard_receive_large_loop(M) ->
+    receive
+        #{pid := Pid, msg := hello} ->
+            case M of
+                #{done := Count, procs := #{Pid := 150}} ->
+                    Pid ! {self(), done},
+                    guard_receive_large_loop(M#{done := Count + 1});
+                #{procs := #{Pid := Count} = Ps} ->
+                    Pid ! {self(), hello},
+                    guard_receive_large_loop(M#{procs := Ps#{Pid := Count + 1}})
+            end
+    end.
+
+grecv_loop() ->
+    receive
+        {_, done} ->
+            ok;
+        {Pid, hello} ->
+            Pid ! #{pid=>self(), msg=>hello},
+            grecv_loop()
+    end.
+
 call(Pid, M) ->
     Pid ! {self(), M}, receive {Pid, Res} -> Res end.
 
@@ -389,6 +1388,11 @@ guard_receive_loop() ->
 
 t_list_comprehension(Config) when is_list(Config) ->
     [#{k:=1},#{k:=2},#{k:=3}] = [#{k=>I} || I <- [1,2,3]],
+
+    Ks = lists:seq($a,$z),
+    Ms = [#{[K1,K2]=>{K1,K2}} || K1 <- Ks, K2 <- Ks],
+    [#{"aa" := {$a,$a}},#{"ab":={$a,$b}}|_] = Ms,
+    [#{"zz" := {$z,$z}},#{"zy":={$z,$y}}|_] = lists:reverse(Ms),
     ok.
 
 t_guard_fun(Config) when is_list(Config) ->
@@ -434,7 +1438,7 @@ t_map_sort_literals(Config) when is_list(Config) ->
     true  = #{ c => 1, b => 1, a => 1 } < id(#{ b => 1, c => 1, d => 1}),
     true  = #{ "a" => 1 } < id(#{ <<"a">> => 1}),
     false = #{ <<"a">> => 1 } < id(#{ "a" => 1}),
-    false = #{ 1 => 1 } < id(#{ 1.0 => 1}),
+    true  = #{ 1 => 1 } < id(#{ 1.0 => 1}),
     false = #{ 1.0 => 1 } < id(#{ 1 => 1}),
 
     %% value order
@@ -442,16 +1446,47 @@ t_map_sort_literals(Config) when is_list(Config) ->
     false = #{ a => 2 } < id(#{ a => 1}),
     false = #{ a => 2, b => 1 } < id(#{ a => 1, b => 3}),
     true  = #{ a => 1, b => 1 } < id(#{ a => 1, b => 3}),
+    false = #{ a => 1 } < id(#{ a => 1.0}),
+    false = #{ a => 1.0 } < id(#{ a => 1}),
 
     true  = #{ "a" => "hi", b => 134 } == id(#{ b => 134,"a" => "hi"}),
 
+    %% large maps
+
+    M = maps:from_list([{I,I}||I <- lists:seq(1,500)]),
+
+    %% size order
+    true  = M#{ a => 1, b => 2} < id(M#{ a => 1, b => 1, c => 1}),
+    true  = M#{ b => 1, a => 1} < id(M#{ c => 1, a => 1, b => 1}),
+    false = M#{ c => 1, b => 1, a => 1} < id(M#{ c => 1, a => 1}),
+
+    %% key order
+    true  = M#{ a => 1 } < id(M#{ b => 1}),
+    false = M#{ b => 1 } < id(M#{ a => 1}),
+    true  = M#{ a => 1, b => 1, c => 1 } < id(M#{ b => 1, c => 1, d => 1}),
+    true  = M#{ b => 1, c => 1, d => 1 } > id(M#{ a => 1, b => 1, c => 1}),
+    true  = M#{ c => 1, b => 1, a => 1 } < id(M#{ b => 1, c => 1, d => 1}),
+    true  = M#{ "a" => 1 } < id(M#{ <<"a">> => 1}),
+    false = M#{ <<"a">> => 1 } < id(#{ "a" => 1}),
+    true  = M#{ 1 => 1 } < id(maps:remove(1,M#{ 1.0 => 1})),
+    false = M#{ 1.0 => 1 } < id(M#{ 1 => 1}),
+
+    %% value order
+    true  = M#{ a => 1 } < id(M#{ a => 2}),
+    false = M#{ a => 2 } < id(M#{ a => 1}),
+    false = M#{ a => 2, b => 1 } < id(M#{ a => 1, b => 3}),
+    true  = M#{ a => 1, b => 1 } < id(M#{ a => 1, b => 3}),
+    false = M#{ a => 1 } < id(M#{ a => 1.0}),
+    false = M#{ a => 1.0 } < id(M#{ a => 1}),
+
+    true  = M#{ "a" => "hi", b => 134 } == id(M#{ b => 134,"a" => "hi"}),
+
     %% lists:sort
 
     SortVs = [#{"a"=>1},#{a=>2},#{1=>3},#{<<"a">>=>4}],
     [#{1:=ok},#{a:=ok},#{"a":=ok},#{<<"a">>:=ok}] = lists:sort([#{"a"=>ok},#{a=>ok},#{1=>ok},#{<<"a">>=>ok}]),
     [#{1:=3},#{a:=2},#{"a":=1},#{<<"a">>:=4}] = lists:sort(SortVs),
     [#{1:=3},#{a:=2},#{"a":=1},#{<<"a">>:=4}] = lists:sort(lists:reverse(SortVs)),
-
     ok.
 
 t_map_equal(Config) when is_list(Config) ->
@@ -471,27 +1506,292 @@ t_map_equal(Config) when is_list(Config) ->
     true = id(#{ a => 1, b => 3, c => <<"wat">> }) =:= id(#{ a => 1, b => 3, c=><<"wat">>}),
     ok.
 
+
+t_map_compare(Config) when is_list(Config) ->
+    Seed = {erlang:monotonic_time(),
+	    erlang:time_offset(),
+	    erlang:unique_integer()},
+    io:format("seed = ~p\n", [Seed]),
+    random:seed(Seed),
+    repeat(100, fun(_) -> float_int_compare() end, []),
+    repeat(100, fun(_) -> recursive_compare() end, []),
+    ok.
+
+float_int_compare() ->
+    Terms = numeric_keys(3),
+    %%io:format("Keys to use: ~p\n", [Terms]),
+    Pairs = lists:map(fun(K) -> list_to_tuple([{K,V} || V <- Terms]) end, Terms),
+    lists:foreach(fun(Size) ->
+			  MapGen = fun() -> map_gen(list_to_tuple(Pairs), Size) end,
+			  repeat(100, fun do_compare/1, [MapGen, MapGen])
+		  end,
+		  lists:seq(1,length(Terms))),
+    ok.
+
+numeric_keys(N) ->
+    lists:foldl(fun(_,Acc) ->
+			Int = random:uniform(N*4) - N*2,
+			Float = float(Int),
+			[Int, Float, Float * 0.99, Float * 1.01 | Acc]
+		end,
+		[],
+		lists:seq(1,N)).
+
+
+repeat(0, _, _) ->
+    ok;
+repeat(N, Fun, Arg) ->
+    Fun(Arg),
+    repeat(N-1, Fun, Arg).
+
+copy_term(T) ->
+    Papa = self(),
+    P = spawn_link(fun() -> receive Msg -> Papa ! Msg end end),
+    P ! T,
+    receive R -> R end.
+
+do_compare([Gen1, Gen2]) ->
+    M1 = Gen1(),
+    M2 = Gen2(),
+    %%io:format("Maps to compare: ~p AND ~p\n", [M1, M2]),
+    C = (M1 < M2),
+    Erlang = maps_lessthan(M1, M2),
+    C = Erlang,
+    ?CHECK(M1==M1, M1),
+
+    %% Change one key from int to float (or vice versa) and check compare
+    ML1 = maps:to_list(M1),
+    {K1,V1} = lists:nth(random:uniform(length(ML1)), ML1),
+    case K1 of
+	I when is_integer(I) ->
+	    case maps:find(float(I),M1) of
+		error ->
+		    M1f = maps:remove(I, maps:put(float(I), V1, M1)),
+		    ?CHECK(M1f > M1, [M1f, M1]);
+		_ -> ok
+	    end;
+
+	F when is_float(F), round(F) == F ->
+	    case maps:find(round(F),M1) of
+		error ->
+		    M1i = maps:remove(F, maps:put(round(F), V1, M1)),
+		    ?CHECK(M1i < M1, [M1i, M1]);
+		_ -> ok
+	    end;
+
+	_ -> ok   % skip floats with decimals
+    end,
+
+    ?CHECK(M2 == M2, [M2]).
+
+
+maps_lessthan(M1, M2) ->
+  case {maps:size(M1),maps:size(M2)} of
+      {_S,_S} ->
+	  {K1,V1} = lists:unzip(term_sort(maps:to_list(M1))),
+	  {K2,V2} = lists:unzip(term_sort(maps:to_list(M2))),
+
+	  case erts_internal:cmp_term(K1,K2) of
+	      -1 -> true;
+	      0 -> (V1 < V2);
+	      1 -> false
+	  end;
+
+      {S1, S2} ->
+	  S1 < S2
+  end.
+
+term_sort(L) ->
+    lists:sort(fun(A,B) -> erts_internal:cmp_term(A,B) =< 0 end,
+	       L).
+
+
+cmp(T1, T2, Exact) when is_tuple(T1) and is_tuple(T2) ->
+    case {size(T1),size(T2)} of
+	{_S,_S} -> cmp(tuple_to_list(T1), tuple_to_list(T2), Exact);
+	{S1,S2} when S1 < S2 -> -1;
+	{S1,S2} when S1 > S2 -> 1
+    end;
+
+cmp([H1|T1], [H2|T2], Exact) ->
+    case cmp(H1,H2, Exact) of
+	0 -> cmp(T1,T2, Exact);
+	C -> C
+    end;
+
+cmp(M1, M2, Exact) when is_map(M1) andalso is_map(M2) ->
+    cmp_maps(M1,M2,Exact);
+cmp(M1, M2, Exact) ->
+    cmp_others(M1, M2, Exact).
+
+cmp_maps(M1, M2, Exact) ->
+    case {maps:size(M1),maps:size(M2)} of
+	{_S,_S} ->
+	    {K1,V1} = lists:unzip(term_sort(maps:to_list(M1))),
+	    {K2,V2} = lists:unzip(term_sort(maps:to_list(M2))),
+
+	    case cmp(K1, K2, true) of
+		0 -> cmp(V1, V2, Exact);
+		C -> C
+	    end;
+
+	{S1,S2} when S1 < S2 -> -1;
+	{S1,S2} when S1 > S2 -> 1
+    end.
+
+cmp_others(I, F, true) when is_integer(I), is_float(F) ->
+    -1;
+cmp_others(F, I, true) when is_float(F), is_integer(I) ->
+    1;
+cmp_others(T1, T2, _) ->
+    case {T1<T2, T1==T2} of
+	{true,false} -> -1;
+	{false,true} -> 0;
+	{false,false} -> 1
+    end.
+
+map_gen(Pairs, Size) ->
+    {_,L} = lists:foldl(fun(_, {Keys, Acc}) ->
+				KI = random:uniform(size(Keys)),
+				K = element(KI,Keys),
+				KV = element(random:uniform(size(K)), K),
+				{erlang:delete_element(KI,Keys), [KV | Acc]}
+			end,
+			{Pairs, []},
+			lists:seq(1,Size)),
+
+    maps:from_list(L).
+
+
+recursive_compare() ->
+    Leafs = {atom, 17, 16.9, 17.1, [], self(), spawn(fun() -> ok end), make_ref(), make_ref()},
+    {A, B} = term_gen_recursive(Leafs, 0, 0),
+    %%io:format("Recursive term A = ~p\n", [A]),
+    %%io:format("Recursive term B = ~p\n", [B]),
+
+    ?CHECK({true,false} =:=  case do_cmp(A, B, false) of
+				 -1 -> {A<B, A>=B};
+				 0 -> {A==B, A/=B};
+				 1 -> {A>B, A=<B}
+			     end,
+	   {A,B}),
+    A2 = copy_term(A),
+    ?CHECK(A == A2, {A,A2}),
+    ?CHECK(0 =:= cmp(A, A2, false), {A,A2}),
+
+    B2 = copy_term(B),
+    ?CHECK(B == B2, {B,B2}),
+    ?CHECK(0 =:= cmp(B, B2, false), {B,B2}),
+    ok.
+
+do_cmp(A, B, Exact) ->
+    C = cmp(A, B, Exact),
+    C.
+
+%% Generate two terms {A,B} that may only differ
+%% at float vs integer types.
+term_gen_recursive(Leafs, Flags, Depth) ->
+    MaxDepth = 10,
+    Rnd = case {Flags, Depth} of
+	      {_, MaxDepth} -> % Only leafs
+		  random:uniform(size(Leafs)) + 3;
+	      {0, 0} ->        % Only containers
+		  random:uniform(3);
+	      {0,_} ->         % Anything
+		  random:uniform(size(Leafs)+3)
+	  end,
+    case Rnd of
+	1 -> % Make map
+	    Size = random:uniform(size(Leafs)),
+	    lists:foldl(fun(_, {Acc1,Acc2}) ->
+				{K1,K2} = term_gen_recursive(Leafs, Flags,
+							     Depth+1),
+				{V1,V2} = term_gen_recursive(Leafs, Flags, Depth+1),
+				%%ok = check_keys(K1,K2, 0),
+				{maps:put(K1,V1, Acc1), maps:put(K2,V2, Acc2)}
+			end,
+			{maps:new(), maps:new()},
+			lists:seq(1,Size));
+	2 -> % Make cons
+	    {Car1,Car2} = term_gen_recursive(Leafs, Flags, Depth+1),
+	    {Cdr1,Cdr2} = term_gen_recursive(Leafs, Flags, Depth+1),
+	    {[Car1 | Cdr1], [Car2 | Cdr2]};
+	3 -> % Make tuple
+	    Size = random:uniform(size(Leafs)),
+	    L = lists:map(fun(_) -> term_gen_recursive(Leafs, Flags, Depth+1) end,
+			  lists:seq(1,Size)),
+	    {L1, L2} = lists:unzip(L),
+	    {list_to_tuple(L1), list_to_tuple(L2)};
+
+	N -> % Make leaf
+	    case element(N-3, Leafs) of
+		I when is_integer(I) ->
+		    case random:uniform(4) of
+			1 -> {I, float(I)};
+			2 -> {float(I), I};
+			_ -> {I,I}
+		    end;
+		T -> {T,T}
+	    end
+    end.
+
+check_keys(K1, K2, _) when K1 =:= K2 ->
+    case erlang:phash3(K1) =:= erlang:phash3(K2) of
+	true -> ok;
+	false ->
+	    io:format("Same keys with different hash values !!!\nK1 = ~p\nK2 = ~p\n", [K1,K2]),
+	    error
+    end;
+check_keys(K1, K2, 0) ->
+    case {erlang:phash3(K1), erlang:phash3(K2)} of
+	{H,H} -> check_keys(K1, K2, 1);
+	{_,_} -> ok
+    end;
+check_keys(K1, K2, L) when L < 10 ->
+    case {erlang:phash3([L|K1]), erlang:phash3([L|K2])} of
+	{H,H} -> check_keys(K1, K2, L+1);
+	{_,_} -> ok
+    end;
+check_keys(K1, K2, L) ->
+    io:format("Same hash value at level ~p !!!\nK1 = ~p\nK2 = ~p\n", [L,K1,K2]),
+    error.
+
 %% BIFs
 t_bif_map_get(Config) when is_list(Config) ->
-
+    %% small map
     1    = maps:get(a, #{ a=> 1}),
     2    = maps:get(b, #{ a=> 1, b => 2}),
     "hi" = maps:get("hello", #{ a=>1, "hello" => "hi"}),
     "tuple hi" = maps:get({1,1.0}, #{ a=>a, {1,1.0} => "tuple hi"}),
 
-    M    = id(#{ k1=>"v1", <<"k2">> => <<"v3">> }),
-    "v4" = maps:get(<<"k2">>, M#{ <<"k2">> => "v4" }),
+    M0    = id(#{ k1=>"v1", <<"k2">> => <<"v3">> }),
+    "v4" = maps:get(<<"k2">>, M0#{<<"k2">> => "v4"}),
 
-    %% error case
-    {'EXIT',{badarg, [{maps,get,_,_}|_]}} = (catch maps:get(a,[])),
-    {'EXIT',{badarg, [{maps,get,_,_}|_]}} = (catch maps:get(a,<<>>)),
-    {'EXIT',{bad_key,[{maps,get,_,_}|_]}} = (catch maps:get({1,1}, #{{1,1.0} => "tuple"})),
-    {'EXIT',{bad_key,[{maps,get,_,_}|_]}} = (catch maps:get(a,#{})),
-    {'EXIT',{bad_key,[{maps,get,_,_}|_]}} = (catch maps:get(a,#{ b=>1, c=>2})),
+    %% large map
+    M1   = maps:from_list([{I,I}||I<-lists:seq(1,100)] ++
+			  [{a,1},{b,2},{"hello","hi"},{{1,1.0},"tuple hi"},
+			   {k1,"v1"},{<<"k2">>,"v3"}]),
+    1    = maps:get(a, M1),
+    2    = maps:get(b, M1),
+    "hi" = maps:get("hello", M1),
+    "tuple hi" = maps:get({1,1.0}, M1),
+    "v3" = maps:get(<<"k2">>, M1),
+
+    %% error cases
+    do_badmap(fun(T) ->
+		      {'EXIT',{{badmap,T},[{maps,get,_,_}|_]}} =
+			  (catch maps:get(a, T))
+	      end),
+
+    {'EXIT',{{badkey,{1,1}},[{maps,get,_,_}|_]}} =
+	(catch maps:get({1,1}, #{{1,1.0} => "tuple"})),
+    {'EXIT',{{badkey,a},[{maps,get,_,_}|_]}} = (catch maps:get(a, #{})),
+    {'EXIT',{{badkey,a},[{maps,get,_,_}|_]}} =
+	(catch maps:get(a, #{b=>1, c=>2})),
     ok.
 
 t_bif_map_find(Config) when is_list(Config) ->
-
+    %% small map
     {ok, 1}     = maps:find(a, #{ a=> 1}),
     {ok, 2}     = maps:find(b, #{ a=> 1, b => 2}),
     {ok, "int"} = maps:find(1, #{ 1   => "int"}),
@@ -500,8 +1800,18 @@ t_bif_map_find(Config) when is_list(Config) ->
     {ok, "hi"} = maps:find("hello", #{ a=>1, "hello" => "hi"}),
     {ok, "tuple hi"} = maps:find({1,1.0}, #{ a=>a, {1,1.0} => "tuple hi"}),
 
-    M = id(#{ k1=>"v1", <<"k2">> => <<"v3">> }),
-    {ok, "v4"} = maps:find(<<"k2">>, M#{ <<"k2">> => "v4" }),
+    M0 = id(#{ k1=>"v1", <<"k2">> => <<"v3">> }),
+    {ok, "v4"} = maps:find(<<"k2">>, M0#{ <<"k2">> => "v4" }),
+
+    %% large map
+    M1   = maps:from_list([{I,I}||I<-lists:seq(1,100)] ++
+			  [{a,1},{b,2},{"hello","hi"},{{1,1.0},"tuple hi"},
+			   {k1,"v1"},{<<"k2">>,"v3"}]),
+    {ok, 1}    = maps:find(a, M1),
+    {ok, 2}    = maps:find(b, M1),
+    {ok, "hi"} = maps:find("hello", M1),
+    {ok, "tuple hi"} = maps:find({1,1.0}, M1),
+    {ok, "v3"} = maps:find(<<"k2">>, M1),
 
     %% error case
     error = maps:find(a,#{}),
@@ -510,9 +1820,10 @@ t_bif_map_find(Config) when is_list(Config) ->
     error = maps:find(1, #{ 1.0  => "float"}),
     error = maps:find({1.0,1}, #{ a=>a, {1,1.0} => "tuple hi"}), % reverse types in tuple key
 
-
-    {'EXIT',{badarg,[{maps,find,_,_}|_]}} = (catch maps:find(a,id([]))),
-    {'EXIT',{badarg,[{maps,find,_,_}|_]}} = (catch maps:find(a,id(<<>>))),
+    do_badmap(fun(T) ->
+		      {'EXIT',{{badmap,T},[{maps,find,_,_}|_]}} =
+			  (catch maps:find(a, T))
+	      end),
     ok.
 
 
@@ -537,26 +1848,27 @@ t_bif_map_is_key(Config) when is_list(Config) ->
     false = maps:is_key(1.0, maps:put(1, "number", M1)),
 
     %% error case
-    {'EXIT',{badarg,[{maps,is_key,_,_}|_]}} = (catch maps:is_key(a,id([]))),
-    {'EXIT',{badarg,[{maps,is_key,_,_}|_]}} = (catch maps:is_key(a,id(<<>>))),
+    do_badmap(fun(T) ->
+		      {'EXIT',{{badmap,T},[{maps,is_key,_,_}|_]}} =
+			  (catch maps:is_key(a, T))
+	      end),
     ok.
 
 t_bif_map_keys(Config) when is_list(Config) ->
     [] = maps:keys(#{}),
 
-    [1,2,3,4,5] = maps:keys(#{ 1 => a, 2 => b, 3 => c, 4 => d, 5 => e}),
-    [1,2,3,4,5] = maps:keys(#{ 4 => d, 5 => e, 1 => a, 2 => b, 3 => c}),
+    [1,2,3,4,5] = lists:sort(maps:keys(#{ 1 => a, 2 => b, 3 => c, 4 => d, 5 => e})),
+    [1,2,3,4,5] = lists:sort(maps:keys(#{ 4 => d, 5 => e, 1 => a, 2 => b, 3 => c})),
 
     % values in key order: [4,int,"hi",<<"key">>]
     M1 = #{ "hi" => "hello", int => 3, <<"key">> => <<"value">>, 4 => number},
-    [4,int,"hi",<<"key">>] = maps:keys(M1),
+    [4,int,"hi",<<"key">>] = lists:sort(maps:keys(M1)),
 
     %% error case
-    {'EXIT',{badarg,[{maps,keys,_,_}|_]}} = (catch maps:keys(1 bsl 65 + 3)),
-    {'EXIT',{badarg,[{maps,keys,_,_}|_]}} = (catch maps:keys(154)),
-    {'EXIT',{badarg,[{maps,keys,_,_}|_]}} = (catch maps:keys(atom)),
-    {'EXIT',{badarg,[{maps,keys,_,_}|_]}} = (catch maps:keys([])),
-    {'EXIT',{badarg,[{maps,keys,_,_}|_]}} = (catch maps:keys(<<>>)),
+    do_badmap(fun(T) ->
+		      {'EXIT',{{badmap,T},[{maps,keys,_,_}|_]}} =
+			  (catch maps:keys(T))
+	      end),
     ok.
 
 t_bif_map_new(Config) when is_list(Config) ->
@@ -584,11 +1896,58 @@ t_bif_map_merge(Config) when is_list(Config) ->
     #{4 := integer, 18446744073709551629 := wat, float := 3.3, int := 3,
 	{1,2} := "tuple", "hi" := "hello again", <<"key">> := <<"value">>} = maps:merge(M0,M1),
 
-    %% error case
-    {'EXIT',{badarg,[{maps,merge,_,_}|_]}} = (catch maps:merge((1 bsl 65 + 3), <<>>)),
-    {'EXIT',{badarg,[{maps,merge,_,_}|_]}} = (catch maps:merge(<<>>, id(#{ a => 1}))),
-    {'EXIT',{badarg,[{maps,merge,_,_}|_]}} = (catch maps:merge(id(#{ a => 2}), <<>> )),
+    %% try deep collisions
+    N  = 150000,
+    Is = lists:seq(1,N),
+    M2 = maps:from_list([{I,I}||I<-Is]),
+    150000 = maps:size(M2),
+    M3 = maps:from_list([{<<I:32>>,I}||I<-Is]),
+    150000 = maps:size(M3),
+    M4 = maps:merge(M2,M3),
+    300000 = maps:size(M4),
+    M5 = maps:from_list([{integer_to_list(I),I}||I<-Is]),
+    150000 = maps:size(M5),
+    M6 = maps:merge(M4,M5),
+    450000 = maps:size(M6),
+    M7 = maps:from_list([{float(I),I}||I<-Is]),
+    150000 = maps:size(M7),
+    M8 = maps:merge(M7,M6),
+    600000 = maps:size(M8),
+
+    #{      1 := 1,           "1" := 1,           <<1:32>> := 1      } = M8,
+    #{     10 := 10,         "10" := 10,         <<10:32>> := 10     } = M8,
+    #{    100 := 100,       "100" := 100,       <<100:32>> := 100    } = M8,
+    #{   1000 := 1000,     "1000" := 1000,     <<1000:32>> := 1000   } = M8,
+    #{  10000 := 10000,   "10000" := 10000,   <<10000:32>> := 10000  } = M8,
+    #{ 100000 := 100000, "100000" := 100000, <<100000:32>> := 100000 } = M8,
+
+    %% overlapping
+    M8 = maps:merge(M2,M8),
+    M8 = maps:merge(M3,M8),
+    M8 = maps:merge(M4,M8),
+    M8 = maps:merge(M5,M8),
+    M8 = maps:merge(M6,M8),
+    M8 = maps:merge(M7,M8),
+    M8 = maps:merge(M8,M8),
+
+    %% maps:merge/2 and mixed
+
+    Ks1 = [764492191,2361333849], %% deep collision
+    Ks2 = lists:seq(1,33),
+    M9  = maps:from_list([{K,K}||K <- Ks1]),
+    M10 = maps:from_list([{K,K}||K <- Ks2]),
+    M11 = maps:merge(M9,M10),
+    ok = check_keys_exist(Ks1 ++ Ks2, M11),
 
+    %% error case
+    do_badmap(fun(T) ->
+		      {'EXIT',{{badmap,T},[{maps,merge,_,_}|_]}} =
+			  (catch maps:merge(#{}, T)),
+		      {'EXIT',{{badmap,T},[{maps,merge,_,_}|_]}} =
+			  (catch maps:merge(T, #{})),
+		      {'EXIT',{{badmap,T},[{maps,merge,_,_}|_]}} =
+			  (catch maps:merge(T, T))
+	      end),
     ok.
 
 
@@ -598,41 +1957,48 @@ t_bif_map_put(Config) when is_list(Config) ->
 
     M1 = #{ "hi" := "hello"} = maps:put("hi", "hello", #{}),
 
-    ["hi"]    = maps:keys(M1),
-    ["hello"] = maps:values(M1),
+    true = is_members(["hi"],maps:keys(M1)),
+    true = is_members(["hello"],maps:values(M1)),
 
     M2 = #{ int := 3 } = maps:put(int, 3, M1),
 
-    [int,"hi"]  = maps:keys(M2),
-    [3,"hello"] = maps:values(M2),
+    true = is_members([int,"hi"],maps:keys(M2)),
+    true = is_members([3,"hello"],maps:values(M2)),
 
     M3 = #{ <<"key">> := <<"value">> } = maps:put(<<"key">>, <<"value">>, M2),
 
-    [int,"hi",<<"key">>]    = maps:keys(M3),
-    [3,"hello",<<"value">>] = maps:values(M3),
+    true = is_members([int,"hi",<<"key">>],maps:keys(M3)),
+    true = is_members([3,"hello",<<"value">>],maps:values(M3)),
 
     M4 = #{ 18446744073709551629 := wat } = maps:put(18446744073709551629, wat, M3),
 
-    [18446744073709551629,int,"hi",<<"key">>] = maps:keys(M4),
-    [wat,3,"hello",<<"value">>]               = maps:values(M4),
+    true = is_members([18446744073709551629,int,"hi",<<"key">>],maps:keys(M4)),
+    true = is_members([wat,3,"hello",<<"value">>],maps:values(M4)),
 
     M0 = #{ 4 := number } = M5 = maps:put(4, number, M4),
 
-    [4,18446744073709551629,int,"hi",<<"key">>] = maps:keys(M5),
-    [number,wat,3,"hello",<<"value">>]          = maps:values(M5),
+    true = is_members([4,18446744073709551629,int,"hi",<<"key">>],maps:keys(M5)),
+    true = is_members([number,wat,3,"hello",<<"value">>],maps:values(M5)),
 
     M6 = #{ <<"key">> := <<"other value">> } = maps:put(<<"key">>, <<"other value">>, M5),
 
-    [4,18446744073709551629,int,"hi",<<"key">>] = maps:keys(M6),
-    [number,wat,3,"hello",<<"other value">>]    = maps:values(M6),
+    true = is_members([4,18446744073709551629,int,"hi",<<"key">>],maps:keys(M6)),
+    true = is_members([number,wat,3,"hello",<<"other value">>],maps:values(M6)),
 
     %% error case
-    {'EXIT',{badarg,[{maps,put,_,_}|_]}} = (catch maps:put(1,a,1 bsl 65 + 3)),
-    {'EXIT',{badarg,[{maps,put,_,_}|_]}} = (catch maps:put(1,a,154)),
-    {'EXIT',{badarg,[{maps,put,_,_}|_]}} = (catch maps:put(1,a,atom)),
-    {'EXIT',{badarg,[{maps,put,_,_}|_]}} = (catch maps:put(1,a,[])),
-    {'EXIT',{badarg,[{maps,put,_,_}|_]}} = (catch maps:put(1,a,<<>>)),
-     ok.
+    do_badmap(fun(T) ->
+		      {'EXIT',{{badmap,T},[{maps,put,_,_}|_]}} =
+			  (catch maps:put(1, a, T))
+	      end),
+    ok.
+
+is_members(Ks,Ls) when length(Ks) =/= length(Ls) -> false;
+is_members(Ks,Ls) -> is_members_do(Ks,Ls).
+
+is_members_do([],[]) -> true;
+is_members_do([],_) -> false;
+is_members_do([K|Ks],Ls) ->
+    is_members_do(Ks, lists:delete(K,Ls)).
 
 t_bif_map_remove(Config) when is_list(Config) ->
     0  = erlang:map_size(maps:remove(some_key, #{})),
@@ -641,20 +2007,20 @@ t_bif_map_remove(Config) when is_list(Config) ->
 	4 => number, 18446744073709551629 => wat},
 
     M1 = maps:remove("hi", M0),
-    [4,18446744073709551629,int,<<"key">>] = maps:keys(M1),
-    [number,wat,3,<<"value">>]             = maps:values(M1),
+    true = is_members([4,18446744073709551629,int,<<"key">>],maps:keys(M1)),
+    true = is_members([number,wat,3,<<"value">>],maps:values(M1)),
 
     M2 = maps:remove(int, M1),
-    [4,18446744073709551629,<<"key">>] = maps:keys(M2),
-    [number,wat,<<"value">>]           = maps:values(M2),
+    true = is_members([4,18446744073709551629,<<"key">>],maps:keys(M2)),
+    true = is_members([number,wat,<<"value">>],maps:values(M2)),
 
     M3 = maps:remove(<<"key">>, M2),
-    [4,18446744073709551629] = maps:keys(M3),
-    [number,wat]             = maps:values(M3),
+    true = is_members([4,18446744073709551629],maps:keys(M3)),
+    true = is_members([number,wat],maps:values(M3)),
 
     M4 = maps:remove(18446744073709551629, M3),
-    [4]      = maps:keys(M4),
-    [number] = maps:values(M4),
+    true = is_members([4],maps:keys(M4)),
+    true = is_members([number],maps:values(M4)),
 
     M5 = maps:remove(4, M4),
     [] = maps:keys(M5),
@@ -666,11 +2032,10 @@ t_bif_map_remove(Config) when is_list(Config) ->
     #{ "hi" := "hello", int := 3, 4 := number} = maps:remove(18446744073709551629,maps:remove(<<"key">>,M0)),
 
     %% error case
-    {'EXIT',{badarg,[{maps,remove,_,_}|_]}} = (catch maps:remove(a,1 bsl 65 + 3)),
-    {'EXIT',{badarg,[{maps,remove,_,_}|_]}} = (catch maps:remove(1,154)),
-    {'EXIT',{badarg,[{maps,remove,_,_}|_]}} = (catch maps:remove(a,atom)),
-    {'EXIT',{badarg,[{maps,remove,_,_}|_]}} = (catch maps:remove(1,[])),
-    {'EXIT',{badarg,[{maps,remove,_,_}|_]}} = (catch maps:remove(a,<<>>)),
+    do_badmap(fun(T) ->
+		      {'EXIT',{{badmap,T},[{maps,remove,_,_}|_]}} =
+	(catch maps:remove(a, T))
+	      end),
      ok.
 
 t_bif_map_update(Config) when is_list(Config) ->
@@ -693,10 +2058,10 @@ t_bif_map_update(Config) when is_list(Config) ->
 	4 := number, 18446744073709551629 := wazzup} = maps:update(18446744073709551629, wazzup, M0),
 
     %% error case
-    {'EXIT',{badarg,[{maps,update,_,_}|_]}} = (catch maps:update(1,none,{})),
-    {'EXIT',{badarg,[{maps,update,_,_}|_]}} = (catch maps:update(1,none,<<"value">>)),
-    {'EXIT',{badarg,[{maps,update,_,_}|_]}} = (catch maps:update(5,none,M0)),
-
+    do_badmap(fun(T) ->
+		      {'EXIT',{{badmap,T},[{maps,update,_,_}|_]}} =
+			  (catch maps:update(1, none, T))
+	      end),
     ok.
 
 
@@ -704,21 +2069,29 @@ t_bif_map_update(Config) when is_list(Config) ->
 t_bif_map_values(Config) when is_list(Config) ->
 
     [] = maps:values(#{}),
+    [1] = maps:values(#{a=>1}),
 
-    [a,b,c,d,e] = maps:values(#{ 1 => a, 2 => b, 3 => c, 4 => d, 5 => e}),
-    [a,b,c,d,e] = maps:values(#{ 4 => d, 5 => e, 1 => a, 2 => b, 3 => c}),
+    true = is_members([a,b,c,d,e],maps:values(#{ 1 => a, 2 => b, 3 => c, 4 => d, 5 => e})),
+    true = is_members([a,b,c,d,e],maps:values(#{ 4 => d, 5 => e, 1 => a, 2 => b, 3 => c})),
 
-    % values in key order: [4,int,"hi",<<"key">>]
     M1 = #{ "hi" => "hello", int => 3, <<"key">> => <<"value">>, 4 => number},
     M2 = M1#{ "hi" => "hello2", <<"key">> => <<"value2">> },
-    [number,3,"hello2",<<"value2">>] = maps:values(M2),
-    [number,3,"hello",<<"value">>]   = maps:values(M1),
+    true = is_members([number,3,"hello2",<<"value2">>],maps:values(M2)),
+    true = is_members([number,3,"hello",<<"value">>],maps:values(M1)),
+
+    Vs = lists:seq(1000,20000),
+    M3 = maps:from_list([{K,K}||K<-Vs]),
+    M4 = maps:merge(M1,M3),
+    M5 = maps:merge(M2,M3),
+    true = is_members(Vs,maps:values(M3)),
+    true = is_members([number,3,"hello",<<"value">>]++Vs,maps:values(M4)),
+    true = is_members([number,3,"hello2",<<"value2">>]++Vs,maps:values(M5)),
 
     %% error case
-    {'EXIT',{badarg,[{maps,values,_,_}|_]}} = (catch maps:values(1 bsl 65 + 3)),
-    {'EXIT',{badarg,[{maps,values,_,_}|_]}} = (catch maps:values(atom)),
-    {'EXIT',{badarg,[{maps,values,_,_}|_]}} = (catch maps:values([])),
-    {'EXIT',{badarg,[{maps,values,_,_}|_]}} = (catch maps:values(<<>>)),
+    do_badmap(fun(T) ->
+		      {'EXIT',{{badmap,T},[{maps,values,_,_}|_]}} =
+			  (catch maps:values(T))
+	      end),
     ok.
 
 t_erlang_hash(Config) when is_list(Config) ->
@@ -732,61 +2105,61 @@ t_erlang_hash(Config) when is_list(Config) ->
 t_bif_erlang_phash2() ->
 
     39679005 = erlang:phash2(#{}),
-    78942764 = erlang:phash2(#{ a => 1, "a" => 2, <<"a">> => 3, {a,b} => 4 }),
-    37338230 = erlang:phash2(#{ 1 => a, 2 => "a", 3 => <<"a">>, 4 => {a,b} }),
-    14363616 = erlang:phash2(#{ 1 => a }),
-    51612236 = erlang:phash2(#{ a => 1 }),
+    33667975 = erlang:phash2(#{ a => 1, "a" => 2, <<"a">> => 3, {a,b} => 4 }), % 78942764
+    95332690 = erlang:phash2(#{ 1 => a, 2 => "a", 3 => <<"a">>, 4 => {a,b} }), % 37338230
+    108954384 = erlang:phash2(#{ 1 => a }), % 14363616
+    59617982 = erlang:phash2(#{ a => 1 }), % 51612236
 
-    37468437 = erlang:phash2(#{{} => <<>>}),
-    44049159 = erlang:phash2(#{<<>> => {}}),
+    42770201 = erlang:phash2(#{{} => <<>>}), % 37468437
+    71687700 = erlang:phash2(#{<<>> => {}}), % 44049159
 
     M0 = #{ a => 1, "key" => <<"value">> },
     M1 = maps:remove("key",M0),
     M2 = M1#{ "key" => <<"value">> },
 
-    118679416 = erlang:phash2(M0),
-    51612236  = erlang:phash2(M1),
-    118679416 = erlang:phash2(M2),
+    70249457 = erlang:phash2(M0), % 118679416
+    59617982 = erlang:phash2(M1), % 51612236
+    70249457 = erlang:phash2(M2), % 118679416
     ok.
 
 t_bif_erlang_phash() ->
     Sz = 1 bsl 32,
-    268440612  = erlang:phash(#{},Sz),
-    1196461908 = erlang:phash(#{ a => 1, "a" => 2, <<"a">> => 3, {a,b} => 4 },Sz),
-    3944426064 = erlang:phash(#{ 1 => a, 2 => "a", 3 => <<"a">>, 4 => {a,b} },Sz),
-    1394238263 = erlang:phash(#{ 1 => a },Sz),
-    4066388227 = erlang:phash(#{ a => 1 },Sz),
+    1113425985 = erlang:phash(#{},Sz), % 268440612
+    1510068139 = erlang:phash(#{ a => 1, "a" => 2, <<"a">> => 3, {a,b} => 4 },Sz), % 1196461908
+    3182345590 = erlang:phash(#{ 1 => a, 2 => "a", 3 => <<"a">>, 4 => {a,b} },Sz), % 3944426064
+    2927531828 = erlang:phash(#{ 1 => a },Sz), % 1394238263
+    1670235874 = erlang:phash(#{ a => 1 },Sz), % 4066388227
 
-    1578050717 = erlang:phash(#{{} => <<>>},Sz),
-    1578050717 = erlang:phash(#{<<>> => {}},Sz), % yep, broken
+    3935089469 = erlang:phash(#{{} => <<>>},Sz), % 1578050717
+    71692856   = erlang:phash(#{<<>> => {}},Sz), % 1578050717
 
     M0 = #{ a => 1, "key" => <<"value">> },
     M1 = maps:remove("key",M0),
     M2 = M1#{ "key" => <<"value">> },
 
-    3590546636 = erlang:phash(M0,Sz),
-    4066388227 = erlang:phash(M1,Sz),
-    3590546636 = erlang:phash(M2,Sz),
+    2620391445 = erlang:phash(M0,Sz), % 3590546636
+    1670235874 = erlang:phash(M1,Sz), % 4066388227
+    2620391445 = erlang:phash(M2,Sz), % 3590546636
     ok.
 
 t_bif_erlang_hash() ->
     Sz = 1 bsl 27 - 1,
-    5158      = erlang:hash(#{},Sz),
-    71555838  = erlang:hash(#{ a => 1, "a" => 2, <<"a">> => 3, {a,b} => 4 },Sz),
-    5497225   = erlang:hash(#{ 1 => a, 2 => "a", 3 => <<"a">>, 4 => {a,b} },Sz),
-    126071654 = erlang:hash(#{ 1 => a },Sz),
-    126426236 = erlang:hash(#{ a => 1 },Sz),
+    39684169 = erlang:hash(#{},Sz),  % 5158
+    33673142 = erlang:hash(#{ a => 1, "a" => 2, <<"a">> => 3, {a,b} => 4 },Sz), % 71555838
+    95337869 = erlang:hash(#{ 1 => a, 2 => "a", 3 => <<"a">>, 4 => {a,b} },Sz), % 5497225
+    108959561 = erlang:hash(#{ 1 => a },Sz), % 126071654
+    59623150 = erlang:hash(#{ a => 1 },Sz), % 126426236
 
-    101655720 = erlang:hash(#{{} => <<>>},Sz),
-    101655720 = erlang:hash(#{<<>> => {}},Sz), % yep, broken
+    42775386 = erlang:hash(#{{} => <<>>},Sz), % 101655720
+    71692856 = erlang:hash(#{<<>> => {}},Sz), % 101655720
 
     M0 = #{ a => 1, "key" => <<"value">> },
     M1 = maps:remove("key",M0),
     M2 = M1#{ "key" => <<"value">> },
 
-    38260486  = erlang:hash(M0,Sz),
-    126426236 = erlang:hash(M1,Sz),
-    38260486  = erlang:hash(M2,Sz),
+    70254632 = erlang:hash(M0,Sz), % 38260486
+    59623150 = erlang:hash(M1,Sz), % 126426236
+    70254632 = erlang:hash(M2,Sz), % 38260486
     ok.
 
 
@@ -820,14 +2193,35 @@ t_map_encode_decode(Config) when is_list(Config) ->
 
     %% literally #{ "hi" => "value", a=>33, b=>55 } in the internal order
     #{ a:=33, b:=55, "hi" := "value"} = erlang:binary_to_term(<<131,116,0,0,0,3,
-	107,0,2,104,105, % "hi" :: list()
+	107,0,2,104,105,            % "hi" :: list()
 	107,0,5,118,97,108,117,101, % "value" :: list()
-	100,0,1,97, % a :: atom()
-	97,33, % 33 :: integer()
-	100,0,1,98, % b :: atom()
-	97,55  % 55 :: integer()
+	100,0,1,97,                 % a :: atom()
+	97,33,                      % 33 :: integer()
+	100,0,1,98,                 % b :: atom()
+	97,55                       % 55 :: integer()
 	>>),
 
+    %% Maps of different sizes
+    lists:foldl(fun(Key, M0) ->
+			M1 = M0#{Key => Key},
+			case Key rem 17 of
+			    0 ->
+				M1 = binary_to_term(term_to_binary(M1));
+			    _ ->
+				ok
+			end,
+			M1
+		end,
+		#{},
+		lists:seq(1,10000)),
+
+    %% many maps in same binary
+    MapList = lists:foldl(fun(K, [M|_]=Acc) -> [M#{K => K} | Acc] end,
+			  [#{}],
+			  lists:seq(1,100)),
+    MapList = binary_to_term(term_to_binary(MapList)),
+    MapListR = lists:reverse(MapList),
+    MapListR = binary_to_term(term_to_binary(MapListR)),
 
     %% error cases
     %% template: <<131,116,0,0,0,2,100,0,1,97,100,0,1,98,97,1,97,1>>
@@ -858,43 +2252,48 @@ t_map_encode_decode(Config) when is_list(Config) ->
 map_encode_decode_and_match([{K,V}|Pairs], EncodedPairs, M0) ->
     M1 = maps:put(K,V,M0),
     B0 = erlang:term_to_binary(M1),
-    Ls = lists:sort(fun(A,B) -> erts_internal:cmp_term(A,B) < 0 end, [{K, erlang:term_to_binary(K), erlang:term_to_binary(V)}|EncodedPairs]),
-    %% sort Ks and Vs according to term spec, then match it
-    KVbins = lists:foldr(fun({_,Kbin,Vbin}, Acc) -> [Kbin,Vbin | Acc] end, [], Ls),
-    ok = match_encoded_map(B0, length(Ls), KVbins),
+    Ls = [{erlang:term_to_binary(K), erlang:term_to_binary(V)}|EncodedPairs],
+    ok = match_encoded_map(B0, length(Ls), Ls),
     %% decode and match it
     M1 = erlang:binary_to_term(B0),
     map_encode_decode_and_match(Pairs,Ls,M1);
 map_encode_decode_and_match([],_,_) -> ok.
 
 match_encoded_map(<<131,116,Size:32,Encoded/binary>>,Size,Items) ->
-    match_encoded_map(Encoded,Items);
+    match_encoded_map_stripped_size(Encoded,Items,Items);
 match_encoded_map(_,_,_) -> no_match_size.
 
-match_encoded_map(<<>>,[]) -> ok;
-match_encoded_map(Bin,[<<131,Item/binary>>|Items]) ->
-    Size = erlang:byte_size(Item),
-    <<EncodedTerm:Size/binary, Bin1/binary>> = Bin,
-    EncodedTerm = Item, %% Asssert
-    match_encoded_map(Bin1,Items).
+match_encoded_map_stripped_size(<<>>,_,_) -> ok;
+match_encoded_map_stripped_size(B0,[{<<131,K/binary>>,<<131,V/binary>>}|Items],Ls) ->
+    Ksz = byte_size(K),
+    Vsz = byte_size(V),
+    case B0 of
+	<<K:Ksz/binary,V:Vsz/binary,B1/binary>> ->
+	    match_encoded_map_stripped_size(B1,Ls,Ls);
+	_ ->
+	    match_encoded_map_stripped_size(B0,Items,Ls)
+    end;
+match_encoded_map_stripped_size(_,[],_) -> fail.
 
 
 t_bif_map_to_list(Config) when is_list(Config) ->
     [] = maps:to_list(#{}),
-    [{a,1},{b,2}] = maps:to_list(#{a=>1,b=>2}),
-    [{a,1},{b,2},{c,3}] = maps:to_list(#{c=>3,a=>1,b=>2}),
-    [{a,1},{b,2},{g,3}] = maps:to_list(#{g=>3,a=>1,b=>2}),
-    [{a,1},{b,2},{g,3},{"c",4}] = maps:to_list(#{g=>3,a=>1,b=>2,"c"=>4}),
-    [{3,v2},{hi,v4},{{hi,3},v5},{"hi",v3},{<<"hi">>,v1}] = maps:to_list(#{
-	    <<"hi">>=>v1,3=>v2,"hi"=>v3,hi=>v4,{hi,3}=>v5}),
+    [{a,1},{b,2}] = lists:sort(maps:to_list(#{a=>1,b=>2})),
+    [{a,1},{b,2},{c,3}] = lists:sort(maps:to_list(#{c=>3,a=>1,b=>2})),
+    [{a,1},{b,2},{g,3}] = lists:sort(maps:to_list(#{g=>3,a=>1,b=>2})),
+    [{a,1},{b,2},{g,3},{"c",4}] = lists:sort(maps:to_list(#{g=>3,a=>1,b=>2,"c"=>4})),
+    [{3,v2},{hi,v4},{{hi,3},v5},{"hi",v3},{<<"hi">>,v1}] =
+	lists:sort(maps:to_list(#{<<"hi">>=>v1,3=>v2,"hi"=>v3,hi=>v4,{hi,3}=>v5})),
 
-    [{3,v7},{hi,v9},{{hi,3},v10},{"hi",v8},{<<"hi">>,v6}] = maps:to_list(#{
-	    <<"hi">>=>v1,3=>v2,"hi"=>v3,hi=>v4,{hi,3}=>v5,
-	    <<"hi">>=>v6,3=>v7,"hi"=>v8,hi=>v9,{hi,3}=>v10}),
+    [{3,v7},{hi,v9},{{hi,3},v10},{"hi",v8},{<<"hi">>,v6}] =
+	lists:sort(maps:to_list(#{<<"hi">>=>v1,3=>v2,"hi"=>v3,hi=>v4,{hi,3}=>v5,
+				  <<"hi">>=>v6,3=>v7,"hi"=>v8,hi=>v9,{hi,3}=>v10})),
 
     %% error cases
-    {'EXIT', {badarg,_}} = (catch maps:to_list(id(a))),
-    {'EXIT', {badarg,_}} = (catch maps:to_list(id(42))),
+    do_badmap(fun(T) ->
+		      {'EXIT', {{badmap,T},_}} =
+			  (catch maps:to_list(T))
+	      end),
     ok.
 
 
@@ -903,7 +2302,7 @@ t_bif_map_from_list(Config) when is_list(Config) ->
     A   = maps:from_list([]),
     0   = erlang:map_size(A),
 
-    #{a:=1,b:=2}  = maps:from_list([{a,1},{b,2}]),
+    #{a:=1,b:=2}      = maps:from_list([{a,1},{b,2}]),
     #{c:=3,a:=1,b:=2} = maps:from_list([{a,1},{b,2},{c,3}]),
     #{g:=3,a:=1,b:=2} = maps:from_list([{a,1},{b,2},{g,3}]),
 
@@ -916,6 +2315,13 @@ t_bif_map_from_list(Config) when is_list(Config) ->
 	maps:from_list([ {{hi,3},v3}, {"hi",v0},{3,v1}, {<<"hi">>,v4}, {hi,v2},
 	    {<<"hi">>,v6}, {{hi,3},v10},{"hi",v11}, {hi,v9}, {3,v8}]),
 
+    %% repeated keys (large -> small)
+    Ps1 = [{a,I}|| I <- lists:seq(1,32)],
+    Ps2 = [{a,I}|| I <- lists:seq(33,64)],
+
+    M = maps:from_list(Ps1 ++ [{b,1},{c,1}] ++ Ps2),
+    #{ a := 64, b := 1, c := 1 } = M,
+
     %% error cases
     {'EXIT', {badarg,_}} = (catch maps:from_list(id([{a,b},b]))),
     {'EXIT', {badarg,_}} = (catch maps:from_list(id([{a,b},{b,b,3}]))),
@@ -925,6 +2331,140 @@ t_bif_map_from_list(Config) when is_list(Config) ->
     {'EXIT', {badarg,_}} = (catch maps:from_list(id(42))),
     ok.
 
+t_bif_build_and_check(Config) when is_list(Config) ->
+    ok = check_build_and_remove(750,[
+				      fun(K) -> [K,K] end,
+				      fun(K) -> [float(K),K] end,
+				      fun(K) -> K end,
+				      fun(K) -> {1,K} end,
+				      fun(K) -> {K} end,
+				      fun(K) -> [K|K] end,
+				      fun(K) -> [K,1,2,3,4] end,
+				      fun(K) -> {K,atom} end,
+				      fun(K) -> float(K) end,
+				      fun(K) -> integer_to_list(K) end,
+				      fun(K) -> list_to_atom(integer_to_list(K)) end,
+				      fun(K) -> [K,{K,[K,{K,[K]}]}] end,
+				      fun(K) -> <<K:32>> end
+			      ]),
+
+    ok.
+
+check_build_and_remove(_,[]) -> ok;
+check_build_and_remove(N,[F|Fs]) ->
+    {M,Ks} = build_and_check(N, maps:new(), F, []),
+    ok     = remove_and_check(Ks,M),
+    check_build_and_remove(N,Fs).
+
+build_and_check(0, M0, _, Ks) -> {M0, Ks};
+build_and_check(N, M0, F, Ks) ->
+    K  = build_key(F,N),
+    M1 = maps:put(K,K,M0),
+    ok = check_keys_exist([I||{I,_} <- [{K,M1}|Ks]], M1),
+    M2 = maps:update(K,v,M1),
+    v  = maps:get(K,M2),
+    build_and_check(N-1,M1,F,[{K,M1}|Ks]).
+
+remove_and_check([],_) -> ok;
+remove_and_check([{K,Mc}|Ks], M0) ->
+    K     = maps:get(K,M0),
+    true  = maps:is_key(K,M0),
+    true  = Mc =:= M0,
+    true  = M0 == Mc,
+    M1    = maps:remove(K,M0),
+    false = M1 =:= Mc,
+    false = Mc == M1,
+    false = maps:is_key(K,M1),
+    true  = maps:is_key(K,M0),
+    ok    = check_keys_exist([I||{I,_} <- Ks],M1),
+    error = maps:find(K,M1),
+    remove_and_check(Ks, M1).
+
+build_key(F,N) when N rem 3 =:= 0 -> F(N);
+build_key(F,N) when N rem 3 =:= 1 -> K = F(N), {K,K};
+build_key(F,N) when N rem 3 =:= 2 -> K = F(N), [K,K].
+
+check_keys_exist([], _) -> ok;
+check_keys_exist([K|Ks],M) ->
+    true = maps:is_key(K,M),
+    check_keys_exist(Ks,M).
+
+t_bif_merge_and_check(Config) when is_list(Config) ->
+    %% simple disjunct ones
+    %% make sure all keys are unique
+    Kss = [[a,b,c,d],
+	   [1,2,3,4],
+	   [],
+	   ["hi"],
+	   [e],
+	   [build_key(fun(K) -> {small,K} end, I) || I <- lists:seq(1,32)],
+	   lists:seq(5, 28),
+	   lists:seq(29, 59),
+	   [build_key(fun(K) -> integer_to_list(K) end, I) || I <- lists:seq(2000,10000)],
+	   [build_key(fun(K) -> <<K:32>> end, I) || I <- lists:seq(1,80)],
+	   [build_key(fun(K) -> {<<K:32>>} end, I) || I <- lists:seq(100,1000)]],
+
+
+    KsMs = build_keys_map_pairs(Kss),
+    Cs   = [{CKs1,CM1,CKs2,CM2} || {CKs1,CM1} <- KsMs, {CKs2,CM2} <- KsMs],
+    ok   = merge_and_check_combo(Cs),
+
+    %% overlapping ones
+
+    KVs1 = [{a,1},{b,2},{c,3}],
+    KVs2 = [{b,3},{c,4},{d,5}],
+    KVs  = [{I,I} || I <- lists:seq(1,32)],
+    KVs3 = KVs1 ++ KVs,
+    KVs4 = KVs2 ++ KVs,
+
+    M1  = maps:from_list(KVs1),
+    M2  = maps:from_list(KVs2),
+    M3  = maps:from_list(KVs3),
+    M4  = maps:from_list(KVs4),
+
+    M12 = maps:merge(M1,M2),
+    ok  = check_key_values(KVs2 ++ [{a,1}], M12),
+    M21 = maps:merge(M2,M1),
+    ok  = check_key_values(KVs1 ++ [{d,5}], M21),
+
+    M34 = maps:merge(M3,M4),
+    ok  = check_key_values(KVs4 ++ [{a,1}], M34),
+    M43 = maps:merge(M4,M3),
+    ok  = check_key_values(KVs3 ++ [{d,5}], M43),
+
+    M14 = maps:merge(M1,M4),
+    ok  = check_key_values(KVs4 ++ [{a,1}], M14),
+    M41 = maps:merge(M4,M1),
+    ok  = check_key_values(KVs1 ++ [{d,5}] ++ KVs, M41),
+
+    ok.
+
+check_key_values([],_) -> ok;
+check_key_values([{K,V}|KVs],M) ->
+    V = maps:get(K,M),
+    check_key_values(KVs,M).
+
+merge_and_check_combo([]) -> ok;
+merge_and_check_combo([{Ks1,M1,Ks2,M2}|Cs]) ->
+    M12 = maps:merge(M1,M2),
+    ok  = check_keys_exist(Ks1 ++ Ks2, M12),
+    M21 = maps:merge(M2,M1),
+    ok  = check_keys_exist(Ks1 ++ Ks2, M21),
+
+    true = M12 =:= M21,
+    M12  = M21,
+
+    merge_and_check_combo(Cs).
+
+build_keys_map_pairs([]) -> [];
+build_keys_map_pairs([Ks|Kss]) ->
+    M  = maps:from_list(keys_to_pairs(Ks)),
+    ok = check_keys_exist(Ks, M),
+    [{Ks,M}|build_keys_map_pairs(Kss)].
+
+keys_to_pairs(Ks) -> [{K,K} || K <- Ks].
+
+
 %% Maps module, not BIFs
 t_maps_fold(_Config) ->
     Vs = lists:seq(1,100),
@@ -963,6 +2503,74 @@ t_maps_without(_Config) ->
 
 %% MISC
 
+%% Verify that the the number of nodes in hashmaps
+%% of different types and sizes does not deviate too
+%% much from the theoretical model.
+t_hashmap_balance(_Config) ->
+    io:format("Integer keys\n", []),
+    hashmap_balance(fun(I) -> I end),
+    io:format("Float keys\n", []),
+    hashmap_balance(fun(I) -> float(I) end),
+    io:format("String keys\n", []),
+    hashmap_balance(fun(I) -> integer_to_list(I) end),
+    io:format("Binary (big) keys\n", []),
+    hashmap_balance(fun(I) -> <<I:16/big>> end),
+    io:format("Binary (little) keys\n", []),
+    hashmap_balance(fun(I) -> <<I:16/little>> end),
+    io:format("Atom keys\n", []),
+    erts_debug:set_internal_state(available_internal_state, true),
+    hashmap_balance(fun(I) -> erts_debug:get_internal_state({atom,I}) end),
+    erts_debug:set_internal_state(available_internal_state, false),
+
+    ok.
+
+hashmap_balance(KeyFun) ->
+    F = fun(I, {M0,Max0}) ->
+		Key = KeyFun(I),
+		M1 = M0#{Key => Key},
+		Max1 = case erts_internal:map_type(M1) of
+			   hashmap ->
+			       Nodes = hashmap_nodes(M1),
+			       Avg = maps:size(M1) * 0.4,
+			       StdDev = math:sqrt(maps:size(M1)) / 3,
+			       SD_diff = abs(Nodes - Avg) / StdDev,
+			       %%io:format("~p keys: ~p nodes avg=~p SD_diff=~p\n",
+			       %%          [maps:size(M1), Nodes, Avg, SD_diff]),
+			       {MaxDiff0, _} = Max0,
+			       case {Nodes > Avg, SD_diff > MaxDiff0} of
+				   {true, true} -> {SD_diff, M1};
+				   _ -> Max0
+			       end;
+
+			   flatmap -> Max0
+		       end,
+		{M1, Max1}
+	end,
+
+    {_,{MaxDiff,MaxMap}} = lists:foldl(F,
+				       {#{}, {0, 0}},
+				       lists:seq(1,10000)),
+    io:format("Max std dev diff ~p for map of size ~p (nodes=~p, flatsize=~p)\n",
+	      [MaxDiff, maps:size(MaxMap), hashmap_nodes(MaxMap), erts_debug:flat_size(MaxMap)]),
+
+    true = (MaxDiff < 6),  % The probability of this line failing is about 0.000000001
+                           % for a uniform hash. I've set the probability this "high" for now
+                           % to detect flaws in our make_internal_hash.
+                           % Hard limit is 15 (see hashmap_over_estimated_heap_size).
+    ok.
+
+hashmap_nodes(M) ->
+    Info = erts_debug:map_info(M),
+    lists:foldl(fun(Tpl,Acc) ->
+			case element(1,Tpl) of
+			    bitmaps -> Acc + element(2,Tpl);
+			    arrays -> Acc + element(2,Tpl);
+			    _ -> Acc
+			end
+		end,
+		0,
+		Info).
+
 t_erts_internal_order(_Config) when is_list(_Config) ->
 
     -1 = erts_internal:cmp_term(1,2),
@@ -1004,6 +2612,80 @@ t_erts_internal_order(_Config) when is_list(_Config) ->
     1  = maps:get(0,M1),
     ok.
 
+t_erts_internal_hash(_Config) when is_list(_Config) ->
+    K1 = 0.0,
+    K2 = 0.0/-1,
+    M  = maps:from_list([{I,I}||I<-lists:seq(1,32)]),
+
+    M1 = M#{ K1 => a, K2 => b },
+    b  = maps:get(K2,M1),
+
+    M2 = M#{ K2 => a, K1 => b },
+    b  = maps:get(K1,M2),
+
+    %% test previously faulty hash list optimization
+
+    M3 = M#{[0] => a, [0,0] => b, [0,0,0] => c, [0,0,0,0] => d},
+    a  = maps:get([0],M3),
+    b  = maps:get([0,0],M3),
+    c  = maps:get([0,0,0],M3),
+    d  = maps:get([0,0,0,0],M3),
+
+    M4 = M#{{[0]} => a, {[0,0]} => b, {[0,0,0]} => c, {[0,0,0,0]} => d},
+    a  = maps:get({[0]},M4),
+    b  = maps:get({[0,0]},M4),
+    c  = maps:get({[0,0,0]},M4),
+    d  = maps:get({[0,0,0,0]},M4),
+
+    M5 = M3#{[0,0,0] => e, [0,0,0,0] => f, [0,0,0,0,0] => g,
+             [0,0,0,0,0,0] => h, [0,0,0,0,0,0,0] => i,
+             [0,0,0,0,0,0,0,0] => j, [0,0,0,0,0,0,0,0,0] => k},
+
+    a  = maps:get([0],M5),
+    b  = maps:get([0,0],M5),
+    e  = maps:get([0,0,0],M5),
+    f  = maps:get([0,0,0,0],M5),
+    g  = maps:get([0,0,0,0,0],M5),
+    h  = maps:get([0,0,0,0,0,0],M5),
+    i  = maps:get([0,0,0,0,0,0,0],M5),
+    j  = maps:get([0,0,0,0,0,0,0,0],M5),
+    k  = maps:get([0,0,0,0,0,0,0,0,0],M5),
+
+    M6 = M4#{{[0,0,0]} => e, {[0,0,0,0]} => f, {[0,0,0,0,0]} => g,
+             {[0,0,0,0,0,0]} => h, {[0,0,0,0,0,0,0]} => i,
+             {[0,0,0,0,0,0,0,0]} => j, {[0,0,0,0,0,0,0,0,0]} => k},
+
+    a  = maps:get({[0]},M6),
+    b  = maps:get({[0,0]},M6),
+    e  = maps:get({[0,0,0]},M6),
+    f  = maps:get({[0,0,0,0]},M6),
+    g  = maps:get({[0,0,0,0,0]},M6),
+    h  = maps:get({[0,0,0,0,0,0]},M6),
+    i  = maps:get({[0,0,0,0,0,0,0]},M6),
+    j  = maps:get({[0,0,0,0,0,0,0,0]},M6),
+    k  = maps:get({[0,0,0,0,0,0,0,0,0]},M6),
+
+    M7 = maps:merge(M5,M6),
+
+    a  = maps:get([0],M7),
+    b  = maps:get([0,0],M7),
+    e  = maps:get([0,0,0],M7),
+    f  = maps:get([0,0,0,0],M7),
+    g  = maps:get([0,0,0,0,0],M7),
+    h  = maps:get([0,0,0,0,0,0],M7),
+    i  = maps:get([0,0,0,0,0,0,0],M7),
+    j  = maps:get([0,0,0,0,0,0,0,0],M7),
+    k  = maps:get([0,0,0,0,0,0,0,0,0],M7),
+    a  = maps:get({[0]},M7),
+    b  = maps:get({[0,0]},M7),
+    e  = maps:get({[0,0,0]},M7),
+    f  = maps:get({[0,0,0,0]},M7),
+    g  = maps:get({[0,0,0,0,0]},M7),
+    h  = maps:get({[0,0,0,0,0,0]},M7),
+    i  = maps:get({[0,0,0,0,0,0,0]},M7),
+    j  = maps:get({[0,0,0,0,0,0,0,0]},M7),
+    k  = maps:get({[0,0,0,0,0,0,0,0,0]},M7),
+    ok.
 
 t_pdict(_Config) ->
 
@@ -1131,5 +2813,111 @@ trace_collector(Msg,Parent) ->
     Parent ! Msg,
     Parent.
 
+t_has_map_fields(Config) when is_list(Config) ->
+    true = has_map_fields_1(#{one=>1}),
+    true = has_map_fields_1(#{one=>1,two=>2}),
+    false = has_map_fields_1(#{two=>2}),
+    false = has_map_fields_1(#{}),
+
+    true = has_map_fields_2(#{c=>1,b=>2,a=>3}),
+    true = has_map_fields_2(#{c=>1,b=>2,a=>3,x=>42}),
+    false = has_map_fields_2(#{b=>2,c=>1}),
+    false = has_map_fields_2(#{x=>y}),
+    false = has_map_fields_2(#{}),
+
+    true = has_map_fields_3(#{c=>1,b=>2,a=>3}),
+    true = has_map_fields_3(#{c=>1,b=>2,a=>3,[]=>42}),
+    true = has_map_fields_3(#{b=>2,a=>3,[]=>42,42.0=>43}),
+    true = has_map_fields_3(#{a=>3,[]=>42,42.0=>43}),
+    true = has_map_fields_3(#{[]=>42,42.0=>43}),
+    false = has_map_fields_3(#{b=>2,c=>1}),
+    false = has_map_fields_3(#{[]=>y}),
+    false = has_map_fields_3(#{42.0=>x,a=>99}),
+    false = has_map_fields_3(#{}),
+
+    ok.
+
+has_map_fields_1(#{one:=_}) -> true;
+has_map_fields_1(#{}) -> false.
+
+has_map_fields_2(#{a:=_,b:=_,c:=_}) -> true;
+has_map_fields_2(#{}) -> false.
+
+has_map_fields_3(#{a:=_,b:=_}) -> true;
+has_map_fields_3(#{[]:=_,42.0:=_}) -> true;
+has_map_fields_3(#{}) -> false.
+
+y_regs(Config) when is_list(Config) ->
+    Val = [length(Config)],
+    Map0 = y_regs_update(#{}, Val),
+    Map2 = y_regs_update(Map0, Val),
+
+    Map3 = maps:from_list([{I,I*I} || I <- lists:seq(1, 100)]),
+    Map4 = y_regs_update(Map3, Val),
+
+    true = is_map(Map2) andalso is_map(Map4),
+
+    ok.
+
+y_regs_update(Map0, Val0) ->
+    Val1 = {t,Val0},
+    K1 = id({key,1}),
+    K2 = id({key,2}),
+    Map1 = Map0#{K1=>K1,
+		 a=>Val0,b=>Val0,c=>Val0,d=>Val0,e=>Val0,
+		 f=>Val0,g=>Val0,h=>Val0,i=>Val0,j=>Val0,
+		 k=>Val0,l=>Val0,m=>Val0,n=>Val0,o=>Val0,
+		 p=>Val0,q=>Val0,r=>Val0,s=>Val0,t=>Val0,
+		 u=>Val0,v=>Val0,w=>Val0,x=>Val0,y=>Val0,
+		 z=>Val0,
+		 aa=>Val0,ab=>Val0,ac=>Val0,ad=>Val0,ae=>Val0,
+		 af=>Val0,ag=>Val0,ah=>Val0,ai=>Val0,aj=>Val0,
+		 ak=>Val0,al=>Val0,am=>Val0,an=>Val0,ao=>Val0,
+		 ap=>Val0,aq=>Val0,ar=>Val0,as=>Val0,at=>Val0,
+		 au=>Val0,av=>Val0,aw=>Val0,ax=>Val0,ay=>Val0,
+		 az=>Val0,
+		 K2=>[a,b,c]},
+    Map2 = Map1#{K1=>K1,
+		 a:=Val1,b:=Val1,c:=Val1,d:=Val1,e:=Val1,
+		 f:=Val1,g:=Val1,h:=Val1,i:=Val1,j:=Val1,
+		 k:=Val1,l:=Val1,m:=Val1,n:=Val1,o:=Val1,
+		 p:=Val1,q:=Val1,r:=Val1,s:=Val1,t:=Val1,
+		 u:=Val1,v:=Val1,w:=Val1,x:=Val1,y:=Val1,
+		 z:=Val1,
+		 aa:=Val1,ab:=Val1,ac:=Val1,ad:=Val1,ae:=Val1,
+		 af:=Val1,ag:=Val1,ah:=Val1,ai:=Val1,aj:=Val1,
+		 ak:=Val1,al:=Val1,am:=Val1,an:=Val1,ao:=Val1,
+		 ap:=Val1,aq:=Val1,ar:=Val1,as:=Val1,at:=Val1,
+		 au:=Val1,av:=Val1,aw:=Val1,ax:=Val1,ay:=Val1,
+		 az:=Val1,
+		 K2=>[a,b,c]},
+
+    %% Traverse the maps to validate them.
+    _ = erlang:phash2({Map1,Map2}, 100000),
+
+    _ = id({K1,K2,Val0,Val1}),			%Force use of Y registers.
+    Map2.
+
+do_badmap(Test) ->
+    Terms = [Test,fun erlang:abs/1,make_ref(),self(),0.0/id(-1),
+	     <<0:1024>>,<<1:1>>,<<>>,<<1,2,3>>,
+	     [],{a,b,c},[a,b],atom,10.0,42,(1 bsl 65) + 3],
+    [Test(T) || T <- Terms].
+
+%% Test that a module compiled with the OTP 17 compiler will
+%% generate the correct 'badmap' exception.
+badmap_17(Config) ->
+    case ?MODULE of
+	map_SUITE -> do_badmap_17(Config);
+	_ -> {skip,"Run in map_SUITE"}
+    end.
+
+do_badmap_17(Config) ->
+    Mod = badmap_17,
+    DataDir = test_server:lookup_config(data_dir, Config),
+    Beam = filename:join(DataDir, Mod),
+    {module,Mod} = code:load_abs(Beam),
+    do_badmap(fun Mod:update/1).
+
 %% Use this function to avoid compile-time evaluation of an expression.
 id(I) -> I.
diff --git a/erts/emulator/test/map_SUITE_data/badmap_17.beam b/erts/emulator/test/map_SUITE_data/badmap_17.beam
new file mode 100644
index 0000000000..277fc34b94
--- /dev/null
+++ b/erts/emulator/test/map_SUITE_data/badmap_17.beam
diff --git a/erts/emulator/test/map_SUITE_data/badmap_17.erl b/erts/emulator/test/map_SUITE_data/badmap_17.erl
new file mode 100644
index 0000000000..0ec65e0e33
--- /dev/null
+++ b/erts/emulator/test/map_SUITE_data/badmap_17.erl
@@ -0,0 +1,26 @@
+-module(badmap_17).
+-export([update/1]).
+
+%% Compile this source file with OTP 17.
+
+update(Map) ->
+    try
+	update_1(Map),
+	error(update_did_not_fail)
+    catch
+	error:{badmap,Map} ->
+	    ok
+    end,
+    try
+	update_2(Map),
+	error(update_did_not_fail)
+    catch
+	error:{badmap,Map} ->
+	    ok
+    end.
+
+update_1(M) ->
+    M#{a=>42}.
+
+update_2(M) ->
+    M#{a:=42}.
diff --git a/erts/emulator/test/match_spec_SUITE.erl b/erts/emulator/test/match_spec_SUITE.erl
index fdce157abc..d3c884689f 100644
--- a/erts/emulator/test/match_spec_SUITE.erl
+++ b/erts/emulator/test/match_spec_SUITE.erl
@@ -30,6 +30,7 @@
 -export([fpe/1]).
 -export([otp_9422/1]).
 -export([faulty_seq_trace/1, do_faulty_seq_trace/0]).
+-export([maps/1]).
 -export([runner/2, loop_runner/3]).
 -export([f1/1, f2/2, f3/2, fn/1, fn/2, fn/3]).
 -export([do_boxed_and_small/0]).
@@ -62,7 +63,8 @@ all() ->
 	     moving_labels,
 	     faulty_seq_trace,
 	     empty_list,
-	     otp_9422];
+             otp_9422,
+             maps];
 	true -> [not_run]
     end.
 
@@ -899,6 +901,74 @@ fpe(Config) when is_list(Config) ->
 	_ -> ok 
     end.
 
+maps(Config) when is_list(Config) ->
+    {ok,#{},[],[]} = erlang:match_spec_test(#{}, [{'_',[],['$_']}], table),
+    {ok,#{},[],[]} = erlang:match_spec_test(#{}, [{#{},[],['$_']}], table),
+    {ok,false,[],[]} =
+        erlang:match_spec_test(#{}, [{not_a_map,[],['$_']}], table),
+    {ok,bar,[],[]} =
+        erlang:match_spec_test(#{foo => bar},
+                               [{#{foo => '$1'},[],['$1']}],
+                               table),
+    {ok,false,[],[]} =
+        erlang:match_spec_test(#{foo => bar},
+                               [{#{foo => qux},[],[qux]}],
+                               table),
+    {ok,false,[],[]} =
+        erlang:match_spec_test(#{}, [{#{foo => '_'},[],[foo]}], table),
+    {error,_} =
+        erlang:match_spec_test(#{}, [{#{'$1' => '_'},[],[foo]}], table),
+    {ok,bar,[],[]} =
+        erlang:match_spec_test({#{foo => bar}},
+                               [{{#{foo => '$1'}},[],['$1']}],
+                               table),
+    {ok,#{foo := 3},[],[]} =
+        erlang:match_spec_test({}, [{{},[],[#{foo => {'+',1,2}}]}], table),
+
+    {ok,"camembert",[],[]} =
+        erlang:match_spec_test(#{b => "camembert",c => "cabécou"},
+                               [{#{b => '$1',c => "cabécou"},[],['$1']}], table),
+
+    {ok,#{a :="camembert",b := "hi"},[],[]} =
+        erlang:match_spec_test(#{<<"b">> =>"camembert","c"=>"cabécou", "wat"=>"hi", b=><<"other">>},
+                               [{#{<<"b">> => '$1',"wat" => '$2'},[],[#{a=>'$1',b=>'$2'}]}],
+                               table),
+    %% large maps
+
+    Ls0 = [{I,<<I:32>>}||I <- lists:seq(1,415)],
+    M0  = maps:from_list(Ls0),
+    M1  = #{a=>1,b=>2,c=>3,d=>4},
+
+    R1  = M0#{263 := #{ a=> 3 }},
+    Ms1 = [{M1#{c:='$1'},[],[M0#{263 := #{a => '$1'}}]}],
+
+    {ok,R1,[],[]} = erlang:match_spec_test(M1,Ms1,table),
+
+    Ms2 = [{M0#{63:='$1', 19:='$2'},[],[M0#{19:='$1', 63:='$2'}]}],
+    R2  = M0#{63 := maps:get(19,M0), 19 := maps:get(63,M0) },
+    {ok,R2,[],[]} = erlang:match_spec_test(M0,Ms2,table),
+
+    ok = maps_check_loop(M1),
+    ok = maps_check_loop(M0),
+    M2 = maps:from_list([{integer_to_list(K),V} || {K,V} <- Ls0]),
+    ok = maps_check_loop(M2),
+    ok.
+
+maps_check_loop(M) ->
+    Ks = maps:keys(M),
+    maps_check_loop(M,M,M,M,Ks,lists:reverse(Ks),1).
+
+maps_check_loop(Orig,M0,MsM0,Rm0,[K|Ks],[Rk|Rks],Ix) ->
+    MsK  = list_to_atom([$$]++integer_to_list(Ix)),
+    MsM1 = MsM0#{K := MsK},
+    Rm1  = Rm0#{Rk := MsK},
+    M1   = M0#{Rk  := maps:get(K,MsM0)},
+    Ms   = [{MsM1,[],[Rm1]}],
+    {ok,M1,[],[]} = erlang:match_spec_test(Orig,Ms,table),
+    maps_check_loop(Orig,M1,MsM1,Rm1,Ks,Rks,Ix+1);
+maps_check_loop(_,_,_,_,[],[],_) -> ok.
+
+
 empty_list(Config) when is_list(Config) ->
     Val=[{'$1',[], [{message,'$1'},{message,{caller}},{return_trace}]}],
      %% Did crash debug VM in faulty assert:
diff --git a/erts/emulator/test/module_info_SUITE.erl b/erts/emulator/test/module_info_SUITE.erl
index 8a63d9fe3e..1125cf3072 100644
--- a/erts/emulator/test/module_info_SUITE.erl
+++ b/erts/emulator/test/module_info_SUITE.erl
@@ -24,7 +24,7 @@
 -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, 
 	 init_per_group/2,end_per_group/2,
 	 init_per_testcase/2,end_per_testcase/2,
-	 exports/1,functions/1,native/1]).
+	 exports/1,functions/1,native/1,info/1]).
 
 %%-compile(native).
 
@@ -52,8 +52,8 @@ end_per_group(_GroupName, Config) ->
     Config.
 
 
-modules() -> 
-    [exports, functions, native].
+modules() ->
+    [exports, functions, native, info].
 
 init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
     Dog = ?t:timetrap(?t:minutes(3)),
@@ -94,12 +94,15 @@ functions(Config) when is_list(Config) ->
     ok.
 
 %% Test that the list of exported functions from this module is correct.
+%% Verify that module_info(native) works.
 native(Config) when is_list(Config) ->
     ?line All = all_functions(),
     ?line case ?MODULE:module_info(native_addresses) of
 	      [] ->
+                  ?line false = ?MODULE:module_info(native),
 		  {comment,"no native functions"};
 	      L ->
+                  ?line true = ?MODULE:module_info(native),
 		  %% Verify that all functions have unique addresses.
 		  ?line S0 = sofs:set(L, [{name,arity,addr}]),
 		  ?line S1 = sofs:projection({external,fun ?MODULE:native_proj/1}, S0),
@@ -122,6 +125,22 @@ native_proj({Name,Arity,Addr}) ->
 native_filter(Set) ->
     sofs:no_elements(Set) =/= 1.
 
+%% Test that the module info of this module is correct. Use
+%% erlang:get_module_info(?MODULE) to avoid compiler optimization tricks.
+info(Config) when is_list(Config) ->
+    Info = erlang:get_module_info(?MODULE),
+    All = all_exported(),
+    {ok,{?MODULE,MD5}} = beam_lib:md5(code:which(?MODULE)),
+    {module, ?MODULE} = lists:keyfind(module, 1, Info),
+    {md5, MD5} = lists:keyfind(md5, 1, Info),
+    {exports, Exports} = lists:keyfind(exports, 1, Info),
+    All = lists:sort(Exports),
+    {attributes, Attrs} = lists:keyfind(attributes, 1, Info),
+    {vsn,_} = lists:keyfind(vsn, 1, Attrs),
+    {compile, Compile} = lists:keyfind(compile, 1, Info),
+    {options,_} = lists:keyfind(options, 1, Compile),
+    ok.
+
 %% Helper functions (local).
 
 add_arity(L) ->
diff --git a/erts/emulator/test/monitor_SUITE.erl b/erts/emulator/test/monitor_SUITE.erl
index aec59867d8..7326dfceb1 100644
--- a/erts/emulator/test/monitor_SUITE.erl
+++ b/erts/emulator/test/monitor_SUITE.erl
@@ -26,7 +26,8 @@
 	 case_1/1, case_1a/1, case_2/1, case_2a/1, mon_e_1/1, demon_e_1/1, demon_1/1,
 	 demon_2/1, demon_3/1, demonitor_flush/1,
 	 local_remove_monitor/1, remote_remove_monitor/1, mon_1/1, mon_2/1,
-	 large_exit/1, list_cleanup/1, mixer/1, named_down/1, otp_5827/1]).
+	 large_exit/1, list_cleanup/1, mixer/1, named_down/1, otp_5827/1,
+	 monitor_time_offset/1]).
 
 -export([init_per_testcase/2, end_per_testcase/2]).
 
@@ -38,7 +39,8 @@ all() ->
     [case_1, case_1a, case_2, case_2a, mon_e_1, demon_e_1,
      demon_1, mon_1, mon_2, demon_2, demon_3,
      demonitor_flush, {group, remove_monitor}, large_exit,
-     list_cleanup, mixer, named_down, otp_5827].
+     list_cleanup, mixer, named_down, otp_5827,
+     monitor_time_offset].
 
 groups() -> 
     [{remove_monitor, [],
@@ -59,7 +61,7 @@ end_per_group(_GroupName, Config) ->
 
 init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
     Dog=?t:timetrap(?t:minutes(15)),
-    [{watchdog, Dog}|Config].
+    [{watchdog, Dog},{testcase, Func}|Config].
 
 end_per_testcase(_Func, Config) ->
     Dog=?config(watchdog, Config),
@@ -663,110 +665,96 @@ list_cleanup(Config) when is_list(Config) ->
 mixer(doc) ->
     "Test mixing of internal and external monitors.";
 mixer(Config) when is_list(Config) ->
-    ?line PA = filename:dirname(code:which(?MODULE)),
-    ?line NN = [j0,j1,j2,j3],
-%    ?line NN = [j0,j1],
-    ?line NL0 = [begin
-		    {ok, J} = test_server:start_node
-				(X, slave, [{args, "-pa " ++ PA}]), 
-		    J 
-		end  || X <- NN],
-    ?line NL1 = lists:duplicate(2,node()) ++ NL0,
-    ?line Perm = perm(NL1),
-    ?line lists:foreach(
-	    fun(NL) ->
-		    ?line Js = [ start_jeeves({[],M}) || M <- (NL ++ NL) ],
-		    ?line [ask_jeeves(P,{monitor_process,self()}) || P <- Js],
-		    ?line {monitored_by,MB} = 
-			process_info(self(),monitored_by),
-		    ?line MBL = lists:sort(MB),
-		    ?line JsL = lists:sort(Js),
-		    ?line MBL = JsL,
-		    ?line {monitors,[]}  = process_info(self(),monitors),
-		    ?line [tell_jeeves(P,{exit,flaff}) || P <- Js],
-		    ?line wait_for_m([],[],200)
-	    end,
-	    Perm),
-    ?line lists:foreach(
-	    fun(NL) ->
-		    ?line Js = [ start_jeeves({[],M}) || M <- (NL ++ NL) ],
-		    ?line Rs = [begin
-				    {monitor_process,Ref} = 
-					ask_jeeves(P,{monitor_process,self()}),
-				    {P,Ref}
-				end
-				|| P <- Js],
-		    ?line {monitored_by,MB} = 
-			process_info(self(),monitored_by),
-		    ?line MBL = lists:sort(MB),
-		    ?line JsL = lists:sort(Js),
-		    ?line MBL = JsL,
-		    ?line {monitors,[]}  = process_info(self(),monitors),
-		    ?line [ask_jeeves(P,{demonitor,Ref}) || {P,Ref} <- Rs],
-		    ?line wait_for_m([],[],200),
-		    ?line [tell_jeeves(P,{exit,flaff}) || P <- Js]
-	    end,
-	    Perm),
-    ?line lists:foreach(
-	    fun(NL) ->
-		    ?line Js = [ start_jeeves({[],M}) || M <- (NL ++ NL) ],
-		    ?line [ask_jeeves(P,{monitor_process,self()}) || P <- Js],
-		    ?line [erlang:monitor(process,P) || P <- Js],
-		    ?line {monitored_by,MB} = 
-			process_info(self(),monitored_by),
-		    ?line MBL = lists:sort(MB),
-		    ?line JsL = lists:sort(Js),
-		    ?line MBL = JsL,
-		    ?line {monitors,M} = 
-			process_info(self(),monitors),
-		    ?line ML = lists:sort([P||{process,P} <- M]),
-		    ?line ML = JsL,
-		    ?line [begin
-			       tell_jeeves(P,{exit,flaff}),
-			       receive {'DOWN',_,process,P,_} -> ok end
-			   end || P <- Js],
-		    ?line wait_for_m([],[],200)
-	    end,
-	    Perm),
-    ?line lists:foreach(
-	    fun(NL) ->
-		    ?line Js = [ start_jeeves({[],M}) || M <- (NL ++ NL) ],
-		    ?line Rs = [begin
-				    {monitor_process,Ref} = 
-					ask_jeeves(P,{monitor_process,self()}),
-				    {P,Ref}
-				end
-				|| P <- Js],
-		    ?line R2s = [{P,erlang:monitor(process,P)} || P <- Js],
-		    ?line {monitored_by,MB} = 
-			process_info(self(),monitored_by),
-		    ?line MBL = lists:sort(MB),
-		    ?line JsL = lists:sort(Js),
-		    ?line MBL = JsL,
-		    ?line {monitors,M} = 
-			process_info(self(),monitors),
-		    ?line ML = lists:sort([P||{process,P} <- M]),
-		    ?line ML = JsL,
-		    ?line [ask_jeeves(P,{demonitor,Ref}) || {P,Ref} <- Rs],
-		    ?line wait_for_m(lists:sort(M),[],200),
-		    ?line [erlang:demonitor(Ref) || {_P,Ref} <- R2s],
-		    ?line wait_for_m([],[],200),
-		    ?line [tell_jeeves(P,{exit,flaff}) || P <- Js]
-	    end,
-	    Perm),
-    [test_server:stop_node(K) || K <- NL0 ],
+    PA = filename:dirname(code:which(?MODULE)),
+    NN = [j0,j1,j2],
+    NL0 = [begin
+               {ok, J} = test_server:start_node(X,slave,[{args, "-pa " ++ PA}]),
+               J
+           end  || X <- NN],
+    NL1 = lists:duplicate(2,node()) ++ NL0,
+    Perm = perm(NL1),
+    lists:foreach(
+      fun(NL) ->
+              Js = [start_jeeves({[],M}) || M <- (NL ++ NL)],
+              [ask_jeeves(P,{monitor_process,self()}) || P <- Js],
+              {monitored_by,MB} = process_info(self(),monitored_by),
+              MBL = lists:sort(MB),
+              JsL = lists:sort(Js),
+              MBL = JsL,
+              {monitors,[]}  = process_info(self(),monitors),
+              [tell_jeeves(P,{exit,flaff}) || P <- Js],
+              wait_for_m([],[],200)
+      end,
+      Perm),
+    lists:foreach(
+      fun(NL) ->
+              Js = [start_jeeves({[],M}) || M <- (NL ++ NL)],
+              Rs = [begin
+                        {monitor_process,Ref} = ask_jeeves(P,{monitor_process,self()}),
+                        {P,Ref}
+                    end || P <- Js],
+              {monitored_by,MB} = process_info(self(),monitored_by),
+              MBL = lists:sort(MB),
+              JsL = lists:sort(Js),
+              MBL = JsL,
+              {monitors,[]}  = process_info(self(),monitors),
+              [ask_jeeves(P,{demonitor,Ref}) || {P,Ref} <- Rs],
+              wait_for_m([],[],200),
+              [tell_jeeves(P,{exit,flaff}) || P <- Js]
+      end,
+      Perm),
+    lists:foreach(
+      fun(NL) ->
+              Js = [start_jeeves({[],M}) || M <- (NL ++ NL)],
+              [ask_jeeves(P,{monitor_process,self()}) || P <- Js],
+              [erlang:monitor(process,P) || P <- Js],
+              {monitored_by,MB} = process_info(self(),monitored_by),
+              MBL = lists:sort(MB),
+              JsL = lists:sort(Js),
+              MBL = JsL,
+              {monitors,M} = process_info(self(),monitors),
+              ML = lists:sort([P||{process,P} <- M]),
+              ML = JsL,
+              [begin
+                   tell_jeeves(P,{exit,flaff}),
+                   receive {'DOWN',_,process,P,_} -> ok end
+               end || P <- Js],
+              wait_for_m([],[],200)
+      end,
+      Perm),
+    lists:foreach(
+      fun(NL) ->
+              Js = [start_jeeves({[],M}) || M <- (NL ++ NL)],
+              Rs = [begin
+                        {monitor_process,Ref} = ask_jeeves(P,{monitor_process,self()}),
+                        {P,Ref}
+                    end || P <- Js],
+              R2s = [{P,erlang:monitor(process,P)} || P <- Js],
+              {monitored_by,MB} = process_info(self(),monitored_by),
+              MBL = lists:sort(MB),
+              JsL = lists:sort(Js),
+              MBL = JsL,
+              {monitors,M} = process_info(self(),monitors),
+              ML = lists:sort([P||{process,P} <- M]),
+              ML = JsL,
+              [ask_jeeves(P,{demonitor,Ref}) || {P,Ref} <- Rs],
+              wait_for_m(lists:sort(M),[],200),
+              [erlang:demonitor(Ref) || {_P,Ref} <- R2s],
+              wait_for_m([],[],200),
+              [tell_jeeves(P,{exit,flaff}) || P <- Js]
+      end,
+      Perm),
+    [test_server:stop_node(K) || K <- NL0],
     ok.
 
 named_down(doc) -> ["Test that DOWN message for a named monitor isn't"
 		    " delivered until name has been unregistered"];
 named_down(suite) -> [];
 named_down(Config) when is_list(Config) ->
-    ?line {A,B,C} = now(),
     ?line Name = list_to_atom(atom_to_list(?MODULE)
 			      ++ "-named_down-"
-			      ++ integer_to_list(A)
-			      ++ "-" ++ integer_to_list(B)
-			      ++ "-" ++ integer_to_list(C)),
+			      ++ integer_to_list(erlang:system_time(seconds))
+			      ++ "-" ++ integer_to_list(erlang:unique_integer([positive]))),
     ?line Prio = process_flag(priority,high),
     %% Spawn a bunch of high prio cpu bound processes to prevent
     %% normal prio processes from terminating during the next
@@ -837,6 +825,89 @@ otp_5827(Config) when is_list(Config) ->
 		  ?line ?t:fail("erlang:monitor/2 hangs")
 	  end.
 
+monitor_time_offset(Config) when is_list(Config) ->
+    {ok, Node} = start_node(Config, "+C single_time_warp"),
+    Me = self(),
+    PMs = lists:map(fun (_) ->
+			    Pid = spawn(Node,
+					fun () ->
+						check_monitor_time_offset(Me)
+					end),
+			    {Pid, erlang:monitor(process, Pid)}
+		    end,
+		    lists:seq(1, 100)),
+    lists:foreach(fun ({P, _M}) ->
+			  P ! check_no_change_message
+		  end, PMs),
+    lists:foreach(fun ({P, M}) ->
+			  receive
+			      {no_change_message_received, P} ->
+				  ok;
+			      {'DOWN', M, process, P, Reason} ->
+				  ?t:fail(Reason)
+			  end
+		  end, PMs),
+    preliminary = rpc:call(Node, erlang, system_flag, [time_offset, finalize]),
+    lists:foreach(fun ({P, M}) ->
+			  receive
+			      {change_messages_received, P} ->
+				  erlang:demonitor(M, [flush]);
+			      {'DOWN', M, process, P, Reason} ->
+				  ?t:fail(Reason)
+			  end
+		  end, PMs),
+    stop_node(Node),
+    ok.
+
+check_monitor_time_offset(Leader) ->
+    Mon1 = erlang:monitor(time_offset, clock_service),
+    Mon2 = erlang:monitor(time_offset, clock_service),
+    Mon3 = erlang:monitor(time_offset, clock_service),
+    Mon4 = erlang:monitor(time_offset, clock_service),
+
+    erlang:demonitor(Mon2, [flush]),
+    
+    Mon5 = erlang:monitor(time_offset, clock_service),
+    Mon6 = erlang:monitor(time_offset, clock_service),
+    Mon7 = erlang:monitor(time_offset, clock_service),
+
+    receive check_no_change_message -> ok end,
+    receive
+	{'CHANGE', _, time_offset, clock_service, _} ->
+	    exit(unexpected_change_message_received)
+    after 0 ->
+	    Leader ! {no_change_message_received, self()}
+    end,
+    receive after 100 -> ok end,
+    erlang:demonitor(Mon4, [flush]),
+    receive
+	{'CHANGE', Mon3, time_offset, clock_service, _} ->
+	    ok
+    end,
+    receive
+	{'CHANGE', Mon6, time_offset, clock_service, _} ->
+	    ok
+    end,
+    erlang:demonitor(Mon5, [flush]),
+    receive
+	{'CHANGE', Mon7, time_offset, clock_service, _} ->
+	    ok
+    end,
+    receive
+	{'CHANGE', Mon1, time_offset, clock_service, _} ->
+	    ok
+    end,
+    receive
+	{'CHANGE', _, time_offset, clock_service, _} ->
+	    exit(unexpected_change_message_received)
+    after 1000 ->
+	    ok
+    end,
+    Leader ! {change_messages_received, self()}.
+
+%%
+%% ...
+%%
 
 wait_for_m(_,_,0) ->
     exit(monitor_wait_timeout);
@@ -959,3 +1030,25 @@ generate(_Fun, 0) ->
     [];
 generate(Fun, N) ->
     [Fun() | generate(Fun, N-1)].
+
+start_node(Config) ->
+    start_node(Config, "").
+
+start_node(Config, Args) ->
+    TestCase = ?config(testcase, Config),
+    PA = filename:dirname(code:which(?MODULE)),
+    ESTime = erlang:monotonic_time(1) + erlang:time_offset(1),
+    Unique = erlang:unique_integer([positive]),
+    Name = list_to_atom(atom_to_list(?MODULE)
+			++ "-"
+			++ atom_to_list(TestCase)
+			++ "-"
+			++ integer_to_list(ESTime)
+			++ "-"
+			++ integer_to_list(Unique)),
+    test_server:start_node(Name,
+			   slave,
+			   [{args, "-pa " ++ PA ++ " " ++ Args}]).
+
+stop_node(Node) ->
+    test_server:stop_node(Node).
diff --git a/erts/emulator/test/mtx_SUITE.erl b/erts/emulator/test/mtx_SUITE.erl
index a492501959..8dcd21f303 100644
--- a/erts/emulator/test/mtx_SUITE.erl
+++ b/erts/emulator/test/mtx_SUITE.erl
@@ -441,10 +441,10 @@ hammer_ets_rwlock_test(XOpts, UW, C, N, NP, SC) ->
 										      receive after infinity -> ok end
 									      end) | Ps0]
 							 end,
-						    Start = now(),
+						    Start = erlang:monotonic_time(),
 						    lists:foreach(fun (P) -> P ! go end, Ps),
 						    lists:foreach(fun (P) -> receive {done, P} -> ok end end, Ps),
-						    Stop = now(),
+						    Stop = erlang:monotonic_time(),
 						    lists:foreach(fun (P) ->
 									  unlink(P),
 									  exit(P, bang),
@@ -453,7 +453,7 @@ hammer_ets_rwlock_test(XOpts, UW, C, N, NP, SC) ->
 									      {'DOWN', M, process, P, _} -> ok
 									  end
 								  end, Ps),
-						    Res = timer:now_diff(Stop, Start)/1000000,
+						    Res = (Stop-Start)/erlang:convert_time_unit(1,seconds,native),
 						    Caller ! {?MODULE, self(), Res}
 					    end,
 					TP = spawn_link(T),
diff --git a/erts/emulator/test/nif_SUITE.erl b/erts/emulator/test/nif_SUITE.erl
index 4560077a51..778f6fd087 100644
--- a/erts/emulator/test/nif_SUITE.erl
+++ b/erts/emulator/test/nif_SUITE.erl
@@ -39,7 +39,9 @@
 	 get_length/1, make_atom/1, make_string/1, reverse_list_test/1,
 	 otp_9828/1,
 	 otp_9668/1, consume_timeslice/1, dirty_nif/1, dirty_nif_send/1,
-	 dirty_nif_exception/1, nif_schedule/1
+	 dirty_nif_exception/1, call_dirty_nif_exception/1, nif_schedule/1,
+	 nif_exception/1, call_nif_exception/1,
+	 nif_nan_and_inf/1, nif_atom_too_long/1
 	]).
 
 -export([many_args_100/100]).
@@ -68,7 +70,8 @@ all() ->
      make_string,reverse_list_test,
      otp_9828,
      otp_9668, consume_timeslice,
-     nif_schedule, dirty_nif, dirty_nif_send, dirty_nif_exception
+     nif_schedule, dirty_nif, dirty_nif_send, dirty_nif_exception,
+     nif_exception, nif_nan_and_inf, nif_atom_too_long
     ].
 
 groups() -> 
@@ -451,7 +454,7 @@ maps(Config) when is_list(Config) ->
     M  = maps_from_list_nif(Pairs),
     R = {RIs,Is} = sorted_list_from_maps_nif(M),
     io:format("Pairs: ~p~nMap: ~p~nReturned: ~p~n", [lists:sort(Pairs),M,R]),
-    Is = lists:sort(Pairs),
+    true = (lists:sort(Is) =:= lists:sort(Pairs)),
     Is = lists:reverse(RIs),
 
     #{} = maps_from_list_nif([]),
@@ -1188,7 +1191,9 @@ send3(Config) when is_list(Config) ->
     %% Let a number of processes send random message blobs between each other
     %% using enif_send. Kill and spawn new ones randomly to keep a ~constant
     %% number of workers running.
-    Seed = now(),
+    Seed = {erlang:monotonic_time(),
+	    erlang:time_offset(),
+	    erlang:unique_integer()},
     io:format("seed: ~p\n",[Seed]), 
     random:seed(Seed),    
     ets:new(nif_SUITE,[named_table,public]),
@@ -1383,7 +1388,7 @@ is_checks(Config) when is_list(Config) ->
 			self(), hd(erlang:ports()), [], [1,9,9,8],
 			{hejsan, "hejsan", [$h,"ejs",<<"an">>]}, -18446744073709551616.2e2),
     try
-        ?line error = check_is_exception(),
+        ?line check_is_exception(),
         ?line throw(expected_badarg)
     catch
         error:badarg ->
@@ -1595,19 +1600,94 @@ dirty_nif_exception(Config) when is_list(Config) ->
 	N when is_integer(N) ->
 	    ensure_lib_loaded(Config),
 	    try
-	        call_dirty_nif_exception(),
+		%% this checks that the expected exception occurs when the
+		%% dirty NIF returns the result of enif_make_badarg
+		%% directly
+	        call_dirty_nif_exception(1),
 	        ?t:fail(expected_badarg)
 	    catch
 	        error:badarg ->
-		    [{?MODULE,call_dirty_nif_exception,[],_}|_] =
+		    [{?MODULE,call_dirty_nif_exception,[1],_}|_] =
 			erlang:get_stacktrace(),
 		    ok
-	    end
+	    end,
+	    try
+		%% this checks that the expected exception occurs when the
+		%% dirty NIF calls enif_make_badarg at some point but then
+		%% returns a value that isn't an exception
+	        call_dirty_nif_exception(0),
+	        ?t:fail(expected_badarg)
+	    catch
+	        error:badarg ->
+		    [{?MODULE,call_dirty_nif_exception,[0],_}|_] =
+			erlang:get_stacktrace(),
+		    ok
+	    end,
+	    %% this checks that a dirty NIF can raise various terms as
+	    %% exceptions
+	    ok = nif_raise_exceptions(call_dirty_nif_exception)
     catch
 	error:badarg ->
 	    {skipped,"No dirty scheduler support"}
     end.
 
+nif_exception(Config) when is_list(Config) ->
+    ensure_lib_loaded(Config),
+    try
+	%% this checks that the expected exception occurs when the NIF
+	%% calls enif_make_badarg at some point but then tries to return a
+	%% value that isn't an exception
+	call_nif_exception(0),
+	?t:fail(expected_badarg)
+    catch
+	error:badarg ->
+	    ok
+    end,
+    %% this checks that a NIF can raise various terms as exceptions
+    ok = nif_raise_exceptions(call_nif_exception),
+    ok.
+
+nif_nan_and_inf(Config) when is_list(Config) ->
+    ensure_lib_loaded(Config),
+    try
+	call_nif_nan_or_inf(nan),
+	?t:fail(expected_badarg)
+    catch
+	error:badarg ->
+	    ok
+    end,
+    try
+	call_nif_nan_or_inf(inf),
+	?t:fail(expected_badarg)
+    catch
+	error:badarg ->
+	    ok
+    end,
+    try
+	call_nif_nan_or_inf(tuple),
+	?t:fail(expected_badarg)
+    catch
+	error:badarg ->
+	    ok
+    end.
+
+nif_atom_too_long(Config) when is_list(Config) ->
+    ensure_lib_loaded(Config),
+    try
+	call_nif_atom_too_long(all),
+	?t:fail(expected_badarg)
+    catch
+	error:badarg ->
+	    ok
+    end,
+    try
+	call_nif_atom_too_long(len),
+	?t:fail(expected_badarg)
+    catch
+	error:badarg ->
+	    ok
+    end.
+
 next_msg(_Pid) ->
     receive
 	M -> M
@@ -1687,7 +1767,20 @@ check(Exp,Got,Line) ->
   	    io:format("CHECK at ~p: Expected ~p but got ~p\n",[Line,Exp,Got]),
  	    Got
     end.
-	    
+
+nif_raise_exceptions(NifFunc) ->
+    ExcTerms = [{error, test}, "a string", <<"a binary">>,
+		42, [1,2,3,4,5], [{p,1},{p,2},{p,3}]],
+    lists:foldl(fun(Term, ok) ->
+			try
+			    erlang:apply(?MODULE,NifFunc,[Term]),
+			    ?t:fail({expected,Term})
+			catch
+			    error:Term ->
+				[{?MODULE,NifFunc,[Term],_}|_] = erlang:get_stacktrace(),
+				ok
+			end
+		end, ok, ExcTerms).
 
 %% The NIFs:
 lib_version() -> undefined.
@@ -1741,8 +1834,11 @@ consume_timeslice_nif(_,_) -> ?nif_stub.
 call_nif_schedule(_,_) -> ?nif_stub.
 call_dirty_nif(_,_,_) -> ?nif_stub.
 send_from_dirty_nif(_) -> ?nif_stub.
-call_dirty_nif_exception() -> ?nif_stub.
+call_dirty_nif_exception(_) -> ?nif_stub.
 call_dirty_nif_zero_args() -> ?nif_stub.
+call_nif_exception(_) -> ?nif_stub.
+call_nif_nan_or_inf(_) -> ?nif_stub.
+call_nif_atom_too_long(_) -> ?nif_stub.
 
 %% maps
 is_map_nif(_) -> ?nif_stub.
diff --git a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
index 85544db2ab..1639e47d61 100644
--- a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
+++ b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
@@ -380,7 +380,8 @@ static ERL_NIF_TERM type_test(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[
     ErlNifSInt64 sint64;
     ErlNifUInt64 uint64;
     double d;
-    ERL_NIF_TERM atom, ref1, ref2;
+    ERL_NIF_TERM atom, ref1, ref2, term;
+    size_t len;
 
     sint = INT_MIN;
     do {
@@ -502,6 +503,7 @@ static ERL_NIF_TERM type_test(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[
 	    goto error;
 	}
     }
+
     ref1 = enif_make_ref(env);
     ref2 = enif_make_ref(env);
     if (!enif_is_ref(env,ref1) || !enif_is_ref(env,ref2) 
@@ -881,15 +883,19 @@ static ERL_NIF_TERM check_is(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]
  *
  * This function is separate from check_is because it calls enif_make_badarg
  * and so it must return the badarg exception as its return value. Thus, the
- * badarg exception indicates success. Failure is indicated by returning an
- * error atom.
+ * badarg exception indicates success.
  */
 static ERL_NIF_TERM check_is_exception(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
 {
+    ERL_NIF_TERM badarg, exc_term;
     ERL_NIF_TERM error_atom = enif_make_atom(env, "error");
-    ERL_NIF_TERM badarg = enif_make_badarg(env);
-    if (enif_is_exception(env, error_atom)) return error_atom;
-    if (!enif_is_exception(env, badarg)) return error_atom;
+    ERL_NIF_TERM badarg_atom = enif_make_atom(env, "badarg");
+    assert(!enif_is_exception(env, error_atom));
+    badarg = enif_make_badarg(env);
+    assert(enif_is_exception(env, badarg));
+    assert(enif_has_pending_exception(env, NULL));
+    assert(enif_has_pending_exception(env, &exc_term));
+    assert(enif_is_identical(exc_term, badarg_atom));
     return badarg;
 }
 
@@ -1533,9 +1539,12 @@ static ERL_NIF_TERM nif_sched1(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv
 
 static ERL_NIF_TERM call_nif_schedule(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
 {
+    ERL_NIF_TERM result;
     if (argc != 2)
 	return enif_make_atom(env, "false");
-    return enif_schedule_nif(env, "nif_sched1", 0, nif_sched1, argc, argv);
+    result = enif_schedule_nif(env, "nif_sched1", 0, nif_sched1, argc, argv);
+    assert(!enif_is_exception(env, result));
+    return result;
 }
 
 #ifdef ERL_NIF_DIRTY_SCHEDULER_SUPPORT
@@ -1608,16 +1617,31 @@ static ERL_NIF_TERM send_from_dirty_nif(ErlNifEnv* env, int argc, const ERL_NIF_
 static ERL_NIF_TERM call_dirty_nif_exception(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
 {
     switch (argc) {
-    case 0: {
-	ERL_NIF_TERM args[255];
-	int i;
-	for (i = 0; i < 255; i++)
-	    args[i] = enif_make_int(env, i);
-	return enif_schedule_nif(env, "call_dirty_nif_exception", ERL_NIF_DIRTY_JOB_CPU_BOUND,
-				 call_dirty_nif_exception, 255, argv);
+    case 1: {
+	int arg;
+	if (enif_get_int(env, argv[0], &arg) && arg < 2) {
+	    ERL_NIF_TERM args[255];
+	    int i;
+	    args[0] = argv[0];
+	    for (i = 1; i < 255; i++)
+		args[i] = enif_make_int(env, i);
+	    return enif_schedule_nif(env, "call_dirty_nif_exception", ERL_NIF_DIRTY_JOB_CPU_BOUND,
+				     call_dirty_nif_exception, 255, args);
+	} else {
+	    return enif_raise_exception(env, argv[0]);
+	}
+    }
+    case 2: {
+        int return_badarg_directly;
+        enif_get_int(env, argv[0], &return_badarg_directly);
+        assert(return_badarg_directly == 1 || return_badarg_directly == 0);
+        if (return_badarg_directly)
+            return enif_make_badarg(env);
+        else {
+            /* ignore return value */ enif_make_badarg(env);
+            return enif_make_atom(env, "ok");
+        }
     }
-    case 1:
-	return enif_make_badarg(env);
     default:
 	return enif_schedule_nif(env, "call_dirty_nif_exception", ERL_NIF_DIRTY_JOB_CPU_BOUND,
 				 call_dirty_nif_exception, argc-1, argv);
@@ -1637,6 +1661,100 @@ static ERL_NIF_TERM call_dirty_nif_zero_args(ErlNifEnv* env, int argc, const ERL
 }
 #endif
 
+/*
+ * If argv[0] is the integer 0, call enif_make_badarg, but don't return its
+ * return value. Instead, return ok.  Result should still be a badarg
+ * exception for the erlang caller.
+ *
+ * For any other value of argv[0], use it as an exception term and return
+ * the exception.
+ */
+static ERL_NIF_TERM call_nif_exception(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{
+    ERL_NIF_TERM exc_term;
+    ERL_NIF_TERM badarg_atom = enif_make_atom(env, "badarg");
+    int arg;
+
+    if (enif_get_int(env, argv[0], &arg) && arg == 0) {
+	/* ignore return value */ enif_make_badarg(env);
+	assert(enif_has_pending_exception(env, NULL));
+	assert(enif_has_pending_exception(env, &exc_term));
+	assert(enif_is_identical(badarg_atom, exc_term));
+	return enif_make_atom(env, "ok");
+    } else {
+	ERL_NIF_TERM exc_retval = enif_raise_exception(env, argv[0]);
+	assert(enif_has_pending_exception(env, NULL));
+	assert(enif_has_pending_exception(env, &exc_term));
+	assert(enif_is_identical(argv[0], exc_term));
+	return exc_retval;
+    }
+}
+
+#if !defined(NAN) || !defined(INFINITY)
+double zero(void)
+{
+    return 0.0;
+}
+#endif
+
+static ERL_NIF_TERM call_nif_nan_or_inf(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{
+    double val;
+    char arg[6];
+    ERL_NIF_TERM res;
+
+    assert(argc == 1);
+    enif_get_atom(env, argv[0], arg, sizeof arg, ERL_NIF_LATIN1);
+    if (strcmp(arg, "nan") == 0) {
+        /* Verify that enif_make_double raises a badarg for NaN */
+#ifdef NAN
+        val = NAN;
+#else
+        val = 0.0/zero();
+#endif
+    } else {
+        /* Verify that enif_make_double raises a badarg for NaN and infinity */
+#ifdef INFINITY
+        val = INFINITY;
+#else
+        val = 1.0/zero();
+#endif
+    }
+    res = enif_make_double(env, val);
+    assert(enif_is_exception(env, res));
+    assert(enif_has_pending_exception(env, NULL));
+    if (strcmp(arg, "tuple") == 0) {
+        return enif_make_tuple2(env, argv[0], res);
+    } else {
+        return res;
+    }
+}
+
+static ERL_NIF_TERM call_nif_atom_too_long(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{
+    char str[257];
+    char arg[4];
+    size_t len;
+    int i;
+    ERL_NIF_TERM res;
+
+    assert(argc == 1);
+    enif_get_atom(env, argv[0], arg, sizeof arg, ERL_NIF_LATIN1);
+    /* Verify that creating an atom from a string that's too long results in a badarg */
+    for (i = 0; i < sizeof str; ++i) {
+        str[i] = 'a';
+    }
+    str[256] = '\0';
+    if (strcmp(arg, "len") == 0) {
+        len = strlen(str);
+        res = enif_make_atom_len(env, str, len);
+    } else {
+        res = enif_make_atom(env, str);
+    }
+    assert(enif_is_exception(env, res));
+    return res;
+}
+
 static ERL_NIF_TERM is_map_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
 {
     return enif_make_int(env, enif_is_map(env,argv[0]));
@@ -1713,12 +1831,13 @@ static ERL_NIF_TERM sorted_list_from_maps_nif(ErlNifEnv* env, int argc, const ER
     if (argc != 1 && !enif_is_map(env, map))
 	return enif_make_int(env, __LINE__);
 
-    if(!enif_map_iterator_create(env, map, &iter_f, ERL_NIF_MAP_ITERATOR_HEAD))
+    if(!enif_map_iterator_create(env, map, &iter_f, ERL_NIF_MAP_ITERATOR_FIRST))
 	return enif_make_int(env, __LINE__);
 
     cnt = 0;
+    next_ret = 1;
     while(enif_map_iterator_get_pair(env,&iter_f,&key,&value)) {
-	if (cnt && !next_ret)
+	if (!next_ret)
 	    return enif_make_int(env, __LINE__);
 	list_f = enif_make_list_cell(env, enif_make_tuple2(env, key, value), list_f);
 	next_ret = enif_map_iterator_next(env,&iter_f);
@@ -1727,12 +1846,13 @@ static ERL_NIF_TERM sorted_list_from_maps_nif(ErlNifEnv* env, int argc, const ER
     if (cnt && next_ret)
 	return enif_make_int(env, __LINE__);
 
-    if(!enif_map_iterator_create(env, map, &iter_b, ERL_NIF_MAP_ITERATOR_TAIL))
+    if(!enif_map_iterator_create(env, map, &iter_b, ERL_NIF_MAP_ITERATOR_LAST))
 	return enif_make_int(env, __LINE__);
 
     cnt = 0;
+    prev_ret = 1;
     while(enif_map_iterator_get_pair(env,&iter_b,&key,&value)) {
-	if (cnt && !prev_ret)
+	if (!prev_ret)
 	    return enif_make_int(env, __LINE__);
 
 	/* Test that iter_f can step "backwards" */
@@ -1744,6 +1864,7 @@ static ERL_NIF_TERM sorted_list_from_maps_nif(ErlNifEnv* env, int argc, const ER
 
 	list_b = enif_make_list_cell(env, enif_make_tuple2(env, key, value), list_b);
 	prev_ret = enif_map_iterator_prev(env,&iter_b);
+	cnt++;
     }
 
     if (cnt) {
@@ -1818,9 +1939,12 @@ static ErlNifFunc nif_funcs[] =
 #ifdef ERL_NIF_DIRTY_SCHEDULER_SUPPORT
     {"call_dirty_nif", 3, call_dirty_nif},
     {"send_from_dirty_nif", 1, send_from_dirty_nif, ERL_NIF_DIRTY_JOB_CPU_BOUND},
-    {"call_dirty_nif_exception", 0, call_dirty_nif_exception, ERL_NIF_DIRTY_JOB_IO_BOUND},
+    {"call_dirty_nif_exception", 1, call_dirty_nif_exception, ERL_NIF_DIRTY_JOB_IO_BOUND},
     {"call_dirty_nif_zero_args", 0, call_dirty_nif_zero_args, ERL_NIF_DIRTY_JOB_CPU_BOUND},
 #endif
+    {"call_nif_exception", 1, call_nif_exception},
+    {"call_nif_nan_or_inf", 1, call_nif_nan_or_inf},
+    {"call_nif_atom_too_long", 1, call_nif_atom_too_long},
     {"is_map_nif", 1, is_map_nif},
     {"get_map_size_nif", 1, get_map_size_nif},
     {"make_new_map_nif", 0, make_new_map_nif},
diff --git a/erts/emulator/test/node_container_SUITE.erl b/erts/emulator/test/node_container_SUITE.erl
index 3f9b339ed2..2f505893b4 100644
--- a/erts/emulator/test/node_container_SUITE.erl
+++ b/erts/emulator/test/node_container_SUITE.erl
@@ -686,6 +686,9 @@ timer_refc(doc) ->
      "as they should for data stored in bif timers."];
 timer_refc(suite) -> [];
 timer_refc(Config) when is_list(Config) ->
+    {skipped, "Test needs to be UPDATED for new timer implementation"}.
+
+timer_refc_test(Config) when is_list(Config) ->
     ?line RNode = {get_nodename(), 1},
     ?line RPid = mk_pid(RNode, 4711, 2),
     ?line RPort = mk_port(RNode, 4711),
@@ -1117,26 +1120,18 @@ wait_until(Pred) ->
 	false -> receive after 100 -> wait_until(Pred) end
     end.
 
+get_nodefirstname_string() ->
+    atom_to_list(?MODULE)
+	++ "-"
+	++ integer_to_list(erlang:system_time(seconds))
+	++ "-"
+	++ integer_to_list(erlang:unique_integer([positive])).
 
 get_nodefirstname() ->
-    {A, B, C} = now(),
-    list_to_atom(atom_to_list(?MODULE)
-		 ++ "-"
-		 ++ integer_to_list(A)
-		 ++ "-"
-		 ++ integer_to_list(B)
-		 ++ "-"
-		 ++ integer_to_list(C)).
+    list_to_atom(get_nodefirstname_string()).
 
 get_nodename() ->
-    {A, B, C} = now(),
-    list_to_atom(atom_to_list(?MODULE)
-		 ++ "-"
-		 ++ integer_to_list(A)
-		 ++ "-"
-		 ++ integer_to_list(B)
-		 ++ "-"
-		 ++ integer_to_list(C)
+    list_to_atom(get_nodefirstname_string()
 		 ++ "@"
 		 ++ hostname()).
     
diff --git a/erts/emulator/test/old_scheduler_SUITE.erl b/erts/emulator/test/old_scheduler_SUITE.erl
index 262536a068..57f6928185 100644
--- a/erts/emulator/test/old_scheduler_SUITE.erl
+++ b/erts/emulator/test/old_scheduler_SUITE.erl
@@ -116,7 +116,7 @@ equal(Config) when is_list(Config) ->
 
     %% start controllers
     ?line Receiver = 
-	spawn(fun() -> receiver(now(), Time, Self, Normal, Low) end),
+	spawn(fun() -> receiver(erlang:monotonic_time(), Time, Self, Normal, Low) end),
     ?line Starter =
 	spawn(fun() -> starter(Normal, Low, Receiver) end),
 
@@ -154,7 +154,7 @@ many_low(Config) when is_list(Config) ->
     Time = 30,
 
     ?line Receiver = 
-	spawn(fun() -> receiver(now(), Time, Self, Normal, Low) end),
+	spawn(fun() -> receiver(erlang:monotonic_time(), Time, Self, Normal, Low) end),
     ?line Starter =
 	spawn(fun() -> starter(Normal, Low, Receiver) end),
     ?line {NRs,NAvg,LRs,LAvg,Ratio} = 
@@ -185,7 +185,7 @@ few_low(Config) when is_list(Config) ->
     Time = 30,
 
     ?line Receiver = 
-	spawn(fun() -> receiver(now(), Time, Self, Normal, Low) end),
+	spawn(fun() -> receiver(erlang:monotonic_time(), Time, Self, Normal, Low) end),
     ?line Starter =
 	spawn(fun() -> starter(Normal, Low, Receiver) end),
     ?line {NRs,NAvg,LRs,LAvg,Ratio} = 
@@ -220,7 +220,7 @@ max(Config) when is_list(Config) ->
     Time = 30,
 
     ?line Receiver1 = 
-	spawn(fun() -> receiver(now(), Time, Self, Max, High) end),
+	spawn(fun() -> receiver(erlang:monotonic_time(), Time, Self, Max, High) end),
     ?line Starter1 =
 	spawn(fun() -> starter(Max, High, Receiver1) end),
     ?line {M1Rs,M1Avg,HRs,HAvg,Ratio1} = 
@@ -238,7 +238,7 @@ max(Config) when is_list(Config) ->
     end,
 
     ?line Receiver2 = 
-	spawn(fun() -> receiver(now(), Time, Self, Max, Normal) end),
+	spawn(fun() -> receiver(erlang:monotonic_time(), Time, Self, Max, Normal) end),
     ?line Starter2 =
 	spawn(fun() -> starter(Max, Normal, Receiver2) end),
     ?line {M2Rs,M2Avg,NRs,NAvg,Ratio2} = 
@@ -256,7 +256,7 @@ max(Config) when is_list(Config) ->
     end,
 
     ?line Receiver3 = 
-	spawn(fun() -> receiver(now(), Time, Self, Max, Low) end),
+	spawn(fun() -> receiver(erlang:monotonic_time(), Time, Self, Max, Low) end),
     ?line Starter3 =
 	spawn(fun() -> starter(Max, Low, Receiver3) end),
     ?line {M3Rs,M3Avg,LRs,LAvg,Ratio3} = 
@@ -290,7 +290,7 @@ high(Config) when is_list(Config) ->
     Time = 30,
 
     ?line Receiver1 = 
-	spawn(fun() -> receiver(now(), Time, Self, High, Normal) end),
+	spawn(fun() -> receiver(erlang:monotonic_time(), Time, Self, High, Normal) end),
     ?line Starter1 =
 	spawn(fun() -> starter(High, Normal, Receiver1) end),
     ?line {H1Rs,H1Avg,NRs,NAvg,Ratio1} = 
@@ -308,7 +308,7 @@ high(Config) when is_list(Config) ->
     end,
 
     ?line Receiver2 = 
-	spawn(fun() -> receiver(now(), Time, Self, High, Low) end),
+	spawn(fun() -> receiver(erlang:monotonic_time(), Time, Self, High, Low) end),
     ?line Starter2 =
 	spawn(fun() -> starter(High, Low, Receiver2) end),
     ?line {H2Rs,H2Avg,LRs,LAvg,Ratio2} = 
@@ -337,12 +337,13 @@ receiver(T0, TimeSec, Main, {P1,P1N}, {P2,P2N}) ->
 
 %% uncomment lines below to get life sign (debug)
 receiver(T0, Time, Main, P1,P1N,P1Rs, P2,P2N,P2Rs, 0) ->
-%    T = elapsed_ms(T0, now()),
+%    T = erlang:convert_time_unit(erlang:monotonic_time() - T0, native, milli_seconds),
 %    erlang:display({round(T/1000),P1Rs,P2Rs}),
     receiver(T0, Time, Main, P1,P1N,P1Rs, P2,P2N,P2Rs, 100000);
 
 receiver(T0, Time, Main, P1,P1N,P1Rs, P2,P2N,P2Rs, C) ->
-    Remain = Time - elapsed_ms(T0, now()),	% test time remaining
+    Remain = Time - erlang:convert_time_unit(erlang:monotonic_time() - T0,
+					     native, milli_seconds), % test time remaining
     Remain1 = if Remain < 0 ->
 		      0;
 		 true ->
@@ -409,6 +410,3 @@ flush_loop() ->
 	    ok
     end,
     flush_loop().
-
-elapsed_ms({_MS0,S0,MuS0},{_MS1,S1,MuS1}) ->
-    round(((S1-S0)*1000)+((MuS1-MuS0)/1000)). 
diff --git a/erts/emulator/test/op_SUITE.erl b/erts/emulator/test/op_SUITE.erl
index ef4689b850..26f6837f19 100644
--- a/erts/emulator/test/op_SUITE.erl
+++ b/erts/emulator/test/op_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1999-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -273,7 +273,8 @@ run_test_module(Cases, GuardsOk) ->
     ?line Bbts = lists:foldr(fun internal_bif/2, [Ok], Es),
     ?line Fun3 = make_function(bif_tests, Bbts),
     ?line Id = {function,1,id,1,[{clause,1,[{var,1,'I'}],[],[{var,1,'I'}]}]},
-    ?line Module = make_module(op_tests, [Fun1,Fun2,Fun3,Id]),
+    Module0 = make_module(op_tests, [Fun1,Fun2,Fun3,Id]),
+    Module = erl_parse:new_anno(Module0),
     ?line lists:foreach(fun(F) -> io:put_chars([erl_pp:form(F),"\n"]) end, Module),
 
     %% Compile, load, and run the generated module.
@@ -365,13 +366,16 @@ make_module(Name, Funcs) ->
 make_function(Name, Body) ->
     {function,1,Name,0,[{clause,1,[],[],Body}]}.
        
-eval(E) ->
+eval(E0) ->
+    E = erl_parse:new_anno(E0),
     ?line case catch erl_eval:exprs(E, []) of
 	      {'EXIT',Reason} -> {'EXIT',Reason};
 	      {value,Val,_Bs} -> Val
 	  end.
 
-unvalue(V) -> erl_parse:abstract(V).
+unvalue(V) ->
+    Abstr = erl_parse:abstract(V),
+    erl_parse:anno_to_term(Abstr).
     
 value({nil,_}) -> [];
 value({integer,_,X}) -> X;
diff --git a/erts/emulator/test/port_SUITE.erl b/erts/emulator/test/port_SUITE.erl
index 9083545060..e61c330861 100644
--- a/erts/emulator/test/port_SUITE.erl
+++ b/erts/emulator/test/port_SUITE.erl
@@ -1407,6 +1407,12 @@ spawn_executable(Config) when is_list(Config) ->
 	run_echo_args(SpaceDir,[ExactFile2,"hello world","dlrow olleh"]),
     [ExactFile2,"hello world","dlrow olleh"] =
 	run_echo_args(SpaceDir,[binary, ExactFile2,"hello world","dlrow olleh"]),
+
+    [ExactFile2,"hello \"world\"","\"dlrow\" olleh"] =
+	run_echo_args(SpaceDir,[binary, ExactFile2,"hello \"world\"","\"dlrow\" olleh"]),
+    [ExactFile2,"hello \"world\"","\"dlrow\" olleh"] =
+	run_echo_args(SpaceDir,[binary, ExactFile2,"hello \"world\"","\"dlrow\" olleh"]),
+
     [ExactFile2] = run_echo_args(SpaceDir,[default]),
     [ExactFile2,"hello world","dlrow olleh"] = 
 	run_echo_args(SpaceDir,[switch_order,ExactFile2,"hello world",
@@ -1809,7 +1815,7 @@ exit_status_msb_test(Config, SleepSecs) when is_list(Config) ->
     Parent = self(),
     ?t:format("SleepSecs = ~p~n", [SleepSecs]),
     PortProg = "sleep " ++ integer_to_list(SleepSecs),
-    Start = now(),
+    Start = erlang:monotonic_time(micro_seconds),
     NoProcs = case NoSchedsOnln of
 			NProcs when NProcs < ?EXIT_STATUS_MSB_MAX_PROCS ->
 			    NProcs;
@@ -1881,12 +1887,12 @@ exit_status_msb_test(Config, SleepSecs) when is_list(Config) ->
 				   receive {P, started, SIds} -> SIds end
 			   end,
 			   Procs),
-    StartedTime = timer:now_diff(now(), Start)/1000000,
+    StartedTime = (erlang:monotonic_time(micro_seconds) - Start)/1000000,
     ?t:format("StartedTime = ~p~n", [StartedTime]),
     true = StartedTime < SleepSecs,
     erlang:system_flag(multi_scheduling, block),
     lists:foreach(fun (P) -> receive {P, done} -> ok end end, Procs),
-    DoneTime = timer:now_diff(now(), Start)/1000000,
+    DoneTime = (erlang:monotonic_time(micro_seconds) - Start)/1000000,
     ?t:format("DoneTime = ~p~n", [DoneTime]),
     true = DoneTime > SleepSecs,
     ok = verify_multi_scheduling_blocked(),
diff --git a/erts/emulator/test/process_SUITE.erl b/erts/emulator/test/process_SUITE.erl
index bf31655066..105d39f126 100644
--- a/erts/emulator/test/process_SUITE.erl
+++ b/erts/emulator/test/process_SUITE.erl
@@ -379,16 +379,15 @@ eat_high(Low) ->
     process_flag(priority, high),
     receive after 1000 -> ok end,
     exit(Low, {you, are, dead}),
-    {_, Sec, _} = now(),
-    loop(Sec, Sec).
+    loop(erlang:monotonic_time() + erlang:convert_time_unit(5,seconds,native)).
 
 %% Busy loop for 5 seconds.
 
-loop(OrigSec, CurrentSec) when CurrentSec < OrigSec+5 ->
-    {_, NewSec, _} = now(),
-    loop(OrigSec, NewSec);
-loop(_, _) ->
-    ok.
+loop(StopTime) ->
+    case StopTime >= erlang:monotonic_time() of
+	true -> ok;
+	false -> loop(StopTime)
+    end.
 
 
 %% Tries to send two different exit messages to a process.
@@ -2450,16 +2449,13 @@ start_node(Config) ->
 
 start_node(Config, Args) when is_list(Config) ->
     Pa = filename:dirname(code:which(?MODULE)),
-    {A, B, C} = now(),
     Name = list_to_atom(atom_to_list(?MODULE)
 			      ++ "-"
 			      ++ atom_to_list(?config(testcase, Config))
 			      ++ "-"
-			      ++ integer_to_list(A)
-			      ++ "-"
-			      ++ integer_to_list(B)
+			      ++ integer_to_list(erlang:system_time(seconds))
 			      ++ "-"
-			      ++ integer_to_list(C)),
+			      ++ integer_to_list(erlang:unique_integer([positive]))),
     ?t:start_node(Name, slave, [{args, "-pa "++Pa++" "++Args}]).
 
 stop_node(Node) ->
diff --git a/erts/emulator/test/scheduler_SUITE.erl b/erts/emulator/test/scheduler_SUITE.erl
index 3906471f87..c5af12c6d1 100644
--- a/erts/emulator/test/scheduler_SUITE.erl
+++ b/erts/emulator/test/scheduler_SUITE.erl
@@ -1829,11 +1829,11 @@ do_it(Tracer, Low, Normal, High, Max) ->
 do_it(Tracer, Low, Normal, High, Max, RedsPerSchedLimit) ->
     OldPrio = process_flag(priority, max),
     go_work(Low, Normal, High, Max),
-    StartWait = now(),
+    StartWait = erlang:monotonic_time(milli_seconds),
     %% Give the emulator a chance to balance the load...
     wait_balance(5),
-    EndWait = now(),
-    BalanceWait = timer:now_diff(EndWait,StartWait) div 1000,
+    EndWait = erlang:monotonic_time(milli_seconds),
+    BalanceWait = EndWait-StartWait,
     erlang:display({balance_wait, BalanceWait}),
     Timeout = ?DEFAULT_TIMEOUT - ?t:minutes(4) - BalanceWait,
     Res = case Timeout < ?MIN_SCHEDULER_TEST_TIMEOUT of
@@ -2027,17 +2027,14 @@ start_node(Config) ->
     start_node(Config, "").
 
 start_node(Config, Args) when is_list(Config) ->
-    ?line Pa = filename:dirname(code:which(?MODULE)),
-    ?line {A, B, C} = now(),
-    ?line Name = list_to_atom(atom_to_list(?MODULE)
-			      ++ "-"
-			      ++ atom_to_list(?config(testcase, Config))
-			      ++ "-"
-			      ++ integer_to_list(A)
-			      ++ "-"
-			      ++ integer_to_list(B)
-			      ++ "-"
-			      ++ integer_to_list(C)),
+    Pa = filename:dirname(code:which(?MODULE)),
+    Name = list_to_atom(atom_to_list(?MODULE)
+			++ "-"
+			++ atom_to_list(?config(testcase, Config))
+			++ "-"
+			++ integer_to_list(erlang:system_time(seconds))
+			++ "-"
+			++ integer_to_list(erlang:unique_integer([positive]))),
     ?line ?t:start_node(Name, slave, [{args, "-pa "++Pa++" "++Args}]).
 
 stop_node(Node) ->
diff --git a/erts/emulator/test/signal_SUITE.erl b/erts/emulator/test/signal_SUITE.erl
index 736dfe5b56..dcb10c947e 100644
--- a/erts/emulator/test/signal_SUITE.erl
+++ b/erts/emulator/test/signal_SUITE.erl
@@ -515,12 +515,10 @@ repeat(Fun, N) when is_integer(N)  ->
     repeat(Fun, N-1).
 
 start_node(Config) ->
-    {A, B, C} = now(),
     Name = list_to_atom(atom_to_list(?MODULE)
 			++ "-" ++ atom_to_list(?config(testcase, Config))
-			++ "-" ++ integer_to_list(A)
-			++ "-" ++ integer_to_list(B)
-			++ "-" ++ integer_to_list(C)),
+			++ "-" ++ integer_to_list(erlang:system_time(seconds))
+			++ "-" ++ integer_to_list(erlang:unique_integer([positive]))),
     Pa = filename:dirname(code:which(?MODULE)),
     ?t:start_node(Name, slave, [{args,  "-pa " ++ Pa}]).
 
diff --git a/erts/emulator/test/smoke_test_SUITE.erl b/erts/emulator/test/smoke_test_SUITE.erl
index 10b7e16a74..4c50b8ba8c 100644
--- a/erts/emulator/test/smoke_test_SUITE.erl
+++ b/erts/emulator/test/smoke_test_SUITE.erl
@@ -167,16 +167,13 @@ start_node(Config) ->
 
 start_node(Config, Args) when is_list(Config) ->
     Pa = filename:dirname(code:which(?MODULE)),
-    {A, B, C} = now(),
     Name = list_to_atom(atom_to_list(?MODULE)
 	      ++ "-"
 	      ++ atom_to_list(?config(testcase, Config))
 	      ++ "-"
-	      ++ integer_to_list(A)
+	      ++ integer_to_list(erlang:system_time(seconds))
 	      ++ "-"
-	      ++ integer_to_list(B)
-	      ++ "-"
-	      ++ integer_to_list(C)),
+	      ++ integer_to_list(erlang:unique_integer([positive]))),
     Opts = [{args, "-pa "++Pa++" "++Args}],
     ?t:start_node(Name, slave, Opts).
 
diff --git a/erts/emulator/test/system_info_SUITE.erl b/erts/emulator/test/system_info_SUITE.erl
index f959714be7..e3ac2d5d83 100644
--- a/erts/emulator/test/system_info_SUITE.erl
+++ b/erts/emulator/test/system_info_SUITE.erl
@@ -264,6 +264,37 @@ memory_test(_Config) ->
 		     []),
     cmp_memory(MWs, "unlink procs"),
 
+    mem_workers_call(MWs, 
+		     fun () ->
+			     lists:foreach(
+			       fun (P) ->
+				       Tmr = erlang:start_timer(1 bsl 34,
+								P,
+								hello),
+				       Tmrs = case get('BIF_TMRS') of
+						  undefined -> [];
+						  Rs -> Rs
+					      end,
+				       true = is_reference(Tmr),
+				       put('BIF_TMRS', [Tmr|Tmrs])
+			       end, Ps)
+		     end,
+		     []),
+    cmp_memory(MWs, "start BIF timer procs"),
+
+    mem_workers_call(MWs, 
+		     fun () ->
+			     lists:foreach(fun (Tmr) ->
+						   true = is_reference(Tmr),
+						   true = is_integer(erlang:cancel_timer(Tmr))
+					   end, get('BIF_TMRS')),
+			     put('BIF_TMRS', undefined),
+			     garbage_collect()
+		     end,
+		     []),
+    erts_debug:set_internal_state(wait, deallocations),
+    cmp_memory(MWs, "cancel BIF timer procs"),
+
     DMs = mem_workers_call(MWs,
 			   fun () ->
 				   lists:map(fun (P) ->
@@ -533,16 +564,13 @@ get_ets_limit(Config, EtsMax) ->
 
 start_node(Config, Envs) when is_list(Config) ->
     Pa = filename:dirname(code:which(?MODULE)),
-    {A, B, C} = now(),
     Name = list_to_atom(atom_to_list(?MODULE)
                         ++ "-"
                         ++ atom_to_list(?config(testcase, Config))
                         ++ "-"
-                        ++ integer_to_list(A)
-                        ++ "-"
-                        ++ integer_to_list(B)
+                        ++ integer_to_list(erlang:system_time(seconds))
                         ++ "-"
-                        ++ integer_to_list(C)),
+                        ++ integer_to_list(erlang:unique_integer([positive]))),
     ?t:start_node(Name, peer, [{args, "-pa "++Pa}, {env, Envs}]).
 
 stop_node(Node) ->
diff --git a/erts/emulator/test/time_SUITE.erl b/erts/emulator/test/time_SUITE.erl
index a0a8a9c42c..d04a95b10e 100644
--- a/erts/emulator/test/time_SUITE.erl
+++ b/erts/emulator/test/time_SUITE.erl
@@ -18,6 +18,7 @@
 %%
 
 -module(time_SUITE).
+-compile({nowarn_deprecated_function, {erlang,now,0}}).
 
 %% "Time is on my side." -- The Rolling Stones
 
@@ -34,7 +35,15 @@
 	 bad_univ_to_local/1, bad_local_to_univ/1,
 	 univ_to_seconds/1, seconds_to_univ/1,
 	 consistency/1,
-	 now_unique/1, now_update/1, timestamp/1]).
+	 now_unique/1, now_update/1, timestamp/1,
+	 time_warp_modes/1,
+	 monotonic_time_monotonicity/1,
+	 monotonic_time_monotonicity_parallel/1,
+	 time_unit_conversion/1,
+	 signed_time_unit_conversion/1,
+	 erlang_timestamp/1]).
+
+-export([init_per_testcase/2, end_per_testcase/2]).
 
 -export([local_to_univ_utc/1]).
 
@@ -56,6 +65,12 @@
 
 -define(dst_timezone, 2).
 
+init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
+    [{testcase, Func}|Config].
+
+end_per_testcase(_Func, Config) ->
+    ok.
+
 suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() -> 
@@ -63,7 +78,13 @@ all() ->
      bad_univ_to_local, bad_local_to_univ, 
      univ_to_seconds, seconds_to_univ,
      consistency,
-     {group, now}, timestamp].
+     {group, now}, timestamp,
+     time_warp_modes,
+     monotonic_time_monotonicity,
+     monotonic_time_monotonicity_parallel,
+     time_unit_conversion,
+     signed_time_unit_conversion,
+     erlang_timestamp].
 
 groups() -> 
     [{now, [], [now_unique, now_update]}].
@@ -420,6 +441,440 @@ now_update1(N) when N > 0 ->
 now_update1(0) ->
     ?line test_server:fail().
 
+time_warp_modes(Config) when is_list(Config) ->
+    %% All time warp modes always supported in
+    %% combination with no time correction...
+    check_time_warp_mode(Config, false, no_time_warp),
+    check_time_warp_mode(Config, false, single_time_warp),
+    check_time_warp_mode(Config, false, multi_time_warp),
+
+    erts_debug:set_internal_state(available_internal_state, true),
+    try
+	case erts_debug:get_internal_state({check_time_config,
+					    true, no_time_warp}) of
+	    false -> ok;
+	    true -> check_time_warp_mode(Config, true, no_time_warp)
+	end,
+	case erts_debug:get_internal_state({check_time_config,
+					    true, single_time_warp}) of
+	    false -> ok;
+	    true -> check_time_warp_mode(Config, true, single_time_warp)
+	end,
+	case erts_debug:get_internal_state({check_time_config,
+					    true, multi_time_warp}) of
+	    false -> ok;
+	    true -> check_time_warp_mode(Config, true, multi_time_warp)
+	end
+    after
+	erts_debug:set_internal_state(available_internal_state, false)
+    end.
+
+check_time_warp_mode(Config, TimeCorrection, TimeWarpMode) ->
+    io:format("~n~n~n***** Testing TimeCorrection=~p TimeWarpMode=~p *****~n",
+	      [TimeCorrection, TimeWarpMode]),
+    Mon = erlang:monitor(time_offset, clock_service),
+    _ = erlang:time_offset(),
+    Start = erlang:monotonic_time(1000),
+    MonotonicityTimeout = 2000,
+    {ok, Node} = start_node(Config,
+			    "+c " ++ atom_to_list(TimeCorrection)
+			    ++ " +C " ++ atom_to_list(TimeWarpMode)),
+    StartTime = rpc:call(Node, erlang, system_info, [start_time]),
+    Me = self(),
+    MonotincityTestStarted = make_ref(),
+    MonotincityTestDone = make_ref(),
+    spawn_link(Node,
+	       fun () ->
+		       Me ! MonotincityTestStarted,
+		       cmp_times(erlang:start_timer(MonotonicityTimeout,
+						    self(),
+						    timeout),
+				 erlang:monotonic_time()),
+		       Me ! MonotincityTestDone
+	       end),
+    receive MonotincityTestStarted -> ok end,
+    check_time_offset(Node, TimeWarpMode),
+    TimeWarpMode = rpc:call(Node, erlang, system_info, [time_warp_mode]),
+    TimeCorrection = rpc:call(Node, erlang, system_info, [time_correction]),
+    receive MonotincityTestDone -> ok end,
+    MonotonicTime = rpc:call(Node, erlang, monotonic_time, []),
+    MonotonicTimeUnit = rpc:call(Node,
+				       erlang,
+				       convert_time_unit,
+				       [1, seconds, native]),
+    UpMilliSeconds = erlang:convert_time_unit(MonotonicTime - StartTime,
+					      MonotonicTimeUnit,
+					      milli_seconds),
+    io:format("UpMilliSeconds=~p~n", [UpMilliSeconds]),
+    End = erlang:monotonic_time(milli_seconds),
+    stop_node(Node),
+    try
+	true = (UpMilliSeconds > (98*MonotonicityTimeout) div 100),
+	true = (UpMilliSeconds < (102*(End-Start)) div 100)
+    catch
+	error:_ ->
+	    io:format("Uptime inconsistency", []),
+	    case {TimeCorrection, erlang:system_info(time_correction)} of
+		{true, true} ->
+		    ?t:fail(uptime_inconsistency);
+		{true, false} ->
+		    _ = erlang:time_offset(),
+		    receive
+			{'CHANGE', Mon, time_offset, clock_service, _} ->
+			    ignore
+		    after 1000 ->
+			    ?t:fail(uptime_inconsistency)
+		    end;
+		_ ->
+		    ignore
+	    end
+    end,
+    erlang:demonitor(Mon, [flush]),
+    ok.
+
+check_time_offset(Node, no_time_warp) ->
+    final = rpc:call(Node, erlang, system_info, [time_offset]),
+    final = rpc:call(Node, erlang, system_flag, [time_offset, finalize]),
+    final = rpc:call(Node, erlang, system_info, [time_offset]);
+check_time_offset(Node, single_time_warp) ->
+    preliminary = rpc:call(Node, erlang, system_info, [time_offset]),
+    preliminary = rpc:call(Node, erlang, system_flag, [time_offset, finalize]),
+    final = rpc:call(Node, erlang, system_info, [time_offset]),
+    final = rpc:call(Node, erlang, system_flag, [time_offset, finalize]);
+check_time_offset(Node, multi_time_warp) ->
+    volatile = rpc:call(Node, erlang, system_info, [time_offset]),
+    volatile = rpc:call(Node, erlang, system_flag, [time_offset, finalize]),
+    volatile = rpc:call(Node, erlang, system_info, [time_offset]).
+
+monotonic_time_monotonicity(Config) when is_list(Config) ->
+    Done = erlang:start_timer(10000,self(),timeout),
+    cmp_times(Done, erlang:monotonic_time()).
+
+cmp_times(Done, X0) ->
+    X1 = erlang:monotonic_time(),
+    X2 = erlang:monotonic_time(),
+    X3 = erlang:monotonic_time(),
+    X4 = erlang:monotonic_time(),
+    X5 = erlang:monotonic_time(),
+    true = (X0 =< X1),
+    true = (X1 =< X2),
+    true = (X2 =< X3),
+    true = (X3 =< X4),
+    true = (X4 =< X5),
+    receive
+	{timeout, Done, timeout} ->
+	    ok
+    after 0 ->
+	    cmp_times(Done, X5)
+    end.
+
+-define(NR_OF_MONOTONIC_CALLS, 100000).
+
+monotonic_time_monotonicity_parallel(Config) when is_list(Config) ->
+    Me = self(),
+    Result = make_ref(),
+    Go = make_ref(),
+    UpAndRunning = make_ref(),
+    NoOnlnScheds = erlang:system_info(schedulers_online),
+    OffsetUI = erlang:unique_integer([monotonic]),
+    OffsetMT = erlang:monotonic_time(),
+    MinHSz = ?NR_OF_MONOTONIC_CALLS*(2
+				     + 3
+				     + erts_debug:flat_size(OffsetUI)
+				     + erts_debug:flat_size(OffsetMT)),
+    Ps = lists:map(
+	   fun (Sched) ->
+		   spawn_opt(
+		     fun () ->
+			     Me ! {self(), UpAndRunning},
+			     receive Go -> ok end,
+			     Res = fetch_monotonic(?NR_OF_MONOTONIC_CALLS, []),
+			     Me ! {self(), Result, Sched, Res}
+		     end,
+		     [{scheduler, Sched},
+		      {priority, max},
+		      {min_heap_size, MinHSz}])
+	   end,
+	   lists:seq(1, NoOnlnScheds)),
+    lists:foreach(fun (P) -> receive {P, UpAndRunning} -> ok end end, Ps),
+    lists:foreach(fun (P) -> P ! Go end, Ps),
+    TMs = recv_monotonics(Result, OffsetMT, OffsetUI, NoOnlnScheds, []),
+    true = check_monotonic_result(TMs, OffsetMT, OffsetUI, true).
+
+check_monotonic_result([{_Sched, _PrevUI, _MT, _PostUI}],
+		       _OffsetMT, _OffsetUI, Res) ->
+    Res;
+check_monotonic_result([{_ASched, _APrevUI, AMT, APostUI} = A,
+			{_BSched, BPrevUI, BMT, _BPostUI} = B | _] = L,
+		       OffsetMT, OffsetUI, Res) ->
+    NewRes = case (AMT =< BMT) orelse (BPrevUI < APostUI) of
+		 true ->
+		     Res;
+		 false ->
+		     io:format("INCONSISTENCY: ~p ~p~n", [A, B]),
+		     false
+	     end,
+    check_monotonic_result(tl(L), OffsetMT, OffsetUI, NewRes).
+
+recv_monotonics(_Result, _OffsetMT, _OffsetUI, 0, Acc) ->
+    lists:keysort(2, Acc);
+recv_monotonics(Result, OffsetMT, OffsetUI, N, Acc) ->
+    receive
+	{_, Result, Sched, Res} ->
+	    CRes = convert_monotonic(Sched, OffsetMT, OffsetUI, Res, []),
+	    recv_monotonics(Result, OffsetMT, OffsetUI, N-1, CRes ++ Acc)
+    end.
+
+convert_monotonic(_Sched, _OffsetMT, _OffsetUI, [{_MT, _UI}], Acc) ->
+    Acc;
+convert_monotonic(Sched, OffsetMT, OffsetUI,
+		  [{MT, UI}, {_PrevMT, PrevUI} | _] = L, Acc) ->
+    convert_monotonic(Sched, OffsetMT, OffsetUI, tl(L),
+		      [{Sched, PrevUI-OffsetUI, MT-OffsetMT, UI-OffsetUI}
+		       | Acc]).
+
+fetch_monotonic(0, Acc) ->
+    Acc;
+fetch_monotonic(N, Acc) ->
+    MT = erlang:monotonic_time(),
+    UI = erlang:unique_integer([monotonic]),
+    fetch_monotonic(N-1, [{MT, UI} | Acc]).
+
+-define(CHK_RES_CONVS_TIMEOUT, 400).
+
+time_unit_conversion(Config) when is_list(Config) ->
+    Mon = erlang:monitor(time_offset, clock_service),
+    start_check_res_convs(Mon, 1000000000000),
+    start_check_res_convs(Mon, 2333333333333),
+    start_check_res_convs(Mon, 5732678356789),
+    erlang:demonitor(Mon, [flush]).
+    
+start_check_res_convs(Mon, Res) ->
+    io:format("Checking ~p time_unit~n", [Res]),
+    check_res_convs(Mon,
+		    erlang:start_timer(?CHK_RES_CONVS_TIMEOUT,
+				       self(),
+				       timeout),
+		    Res).
+    
+
+check_res_convs(Mon, Done, Res) ->
+    receive
+	{timeout, Done, timeout} ->
+	    case Res div 10 of
+		0 ->
+		    ok;
+		NewRes ->
+		    start_check_res_convs(Mon, NewRes)
+	    end
+    after 0 ->
+	    do_check_res_convs(Mon, Done, Res)
+    end.
+
+do_check_res_convs(Mon, Done, Res) ->
+    TStart = erlang:monotonic_time(),
+    T = erlang:monotonic_time(Res),
+    TEnd = erlang:monotonic_time(),
+    TMin = erlang:convert_time_unit(TStart, native, Res),
+    TMax = erlang:convert_time_unit(TEnd, native, Res),
+    %io:format("~p =< ~p =< ~p~n", [TMin, T, TEnd]),
+    true = (TMin =< T),
+    true = (TMax >= T),
+    check_time_offset_res_conv(Mon, Res),
+    check_res_convs(Mon, Done, Res).
+
+
+check_time_offset_res_conv(Mon, Res) ->
+    TORes = erlang:time_offset(Res),
+    TO = erlang:time_offset(),
+    case erlang:convert_time_unit(TO, native, Res) of
+	TORes ->
+	    ok;
+	TORes2 ->
+	    case check_time_offset_change(Mon, TO, 1000) of
+		{TO, false} ->
+		    ?t:fail({time_unit_conversion_inconsistency,
+			     TO, TORes, TORes2});
+		{_NewTO, true} ->
+		    ?t:format("time_offset changed", []),
+		    check_time_offset_res_conv(Mon, Res)
+	    end
+    end.
+
+signed_time_unit_conversion(Config) when is_list(Config) ->
+    chk_strc(1000000000, 1000000),
+    chk_strc(1000000000, 1000),
+    chk_strc(1000000000, 1),
+    chk_strc(1000000, 1000),
+    chk_strc(1000000, 1),
+    chk_strc(1000, 1),
+    chk_strc(4711, 17),
+    chk_strc(1 bsl 10, 1),
+    chk_strc(1 bsl 16, 10),
+    chk_strc(1 bsl 17, 1 bsl 8),
+    chk_strc((1 bsl 17) + 1, (1 bsl 8) - 1),
+    chk_strc(1 bsl 17, 11),
+    ok.
+
+chk_strc(Res0, Res1) ->
+    case (Res0 /= Res1) andalso (Res0 =< 1000000) andalso (Res1 =< 1000000) of
+	true ->
+	    {FromRes, ToRes} = case Res0 > Res1 of
+				   true -> {Res0, Res1};
+				   false -> {Res1, Res0}
+			       end,
+	    MinFromValuesPerToValue = FromRes div ToRes,
+	    MaxFromValuesPerToValue = ((FromRes-1) div ToRes)+1,
+	    io:format("~p -> ~p [~p, ~p]~n",
+		      [FromRes, ToRes,
+		       MinFromValuesPerToValue, MaxFromValuesPerToValue]),
+	    chk_values_per_value(FromRes, ToRes,
+				 -10*FromRes, 10*FromRes,
+				 MinFromValuesPerToValue,
+				 MaxFromValuesPerToValue,
+				 undefined, MinFromValuesPerToValue);
+	_ ->
+	    ok
+    end,
+    chk_random_values(Res0, Res1),
+    chk_random_values(Res1, Res0),
+    ok.
+
+chk_random_values(FR, TR) ->
+%    case (FR rem TR == 0) orelse (TR rem FR == 0) of
+%	true ->
+	    io:format("rand values ~p -> ~p~n", [FR, TR]),
+	    random:seed(268438039, 268440479, 268439161),
+	    Values = lists:map(fun (_) -> random:uniform(1 bsl 65) - (1 bsl 64) end,
+			       lists:seq(1, 100000)),
+	    CheckFun = fun (V) ->
+			       CV = erlang:convert_time_unit(V, FR, TR),
+			       case {(FR*CV) div TR =< V,
+				     (FR*(CV+1)) div TR >= V} of
+				   {true, true} ->
+				       ok;
+				   Failure ->
+				       ?t:fail({Failure, CV, V, FR, TR})
+			       end
+		       end,
+	    lists:foreach(CheckFun, Values).%;
+%	false -> ok
+%    end.
+		       
+
+chk_values_per_value(_FromRes, _ToRes,
+	 EndValue, EndValue,
+	 MinFromValuesPerToValue, MaxFromValuesPerToValue,
+	 _ToValue, FromValueCount) ->
+%    io:format("~p [~p]~n", [EndValue, FromValueCount]),
+    case ((MinFromValuesPerToValue =< FromValueCount)
+	  andalso (FromValueCount =< MaxFromValuesPerToValue)) of
+	false ->
+	    ?t:fail({MinFromValuesPerToValue,
+		     FromValueCount,
+		     MaxFromValuesPerToValue});
+	true ->
+	    ok
+    end;
+chk_values_per_value(FromRes, ToRes, Value, EndValue,
+		     MinFromValuesPerToValue, MaxFromValuesPerToValue,
+		     ToValue, FromValueCount) ->
+    case erlang:convert_time_unit(Value, FromRes, ToRes) of
+	ToValue ->
+	    chk_values_per_value(FromRes, ToRes,
+				 Value+1, EndValue,
+				 MinFromValuesPerToValue,
+				 MaxFromValuesPerToValue,
+				 ToValue, FromValueCount+1);
+	NewToValue ->
+	    case ((MinFromValuesPerToValue =< FromValueCount)
+		  andalso (FromValueCount =< MaxFromValuesPerToValue)) of
+		false ->
+		    ?t:fail({MinFromValuesPerToValue,
+			     FromValueCount,
+			     MaxFromValuesPerToValue});
+		true ->
+%		    io:format("~p -> ~p [~p]~n",
+%			      [Value, NewToValue, FromValueCount]),
+		    chk_values_per_value(FromRes, ToRes,
+					 Value+1, EndValue,
+					 MinFromValuesPerToValue,
+					 MaxFromValuesPerToValue,
+					 NewToValue, 1)
+	    end
+    end.
+
+erlang_timestamp(Config) when is_list(Config) ->
+    Mon = erlang:monitor(time_offset, clock_service),
+    {TO, _} = check_time_offset_change(Mon,
+				       erlang:time_offset(),
+				       0),
+    Done = erlang:start_timer(10000,self(),timeout),
+    ok = check_erlang_timestamp(Done, Mon, TO).
+
+check_erlang_timestamp(Done, Mon, TO) ->
+    receive
+	{timeout, Done, timeout} ->
+	    erlang:demonitor(Mon, [flush]),
+	    ok
+    after 0 ->
+	    do_check_erlang_timestamp(Done, Mon, TO)
+    end.
+
+do_check_erlang_timestamp(Done, Mon, TO) ->
+    MinMon = erlang:monotonic_time(),
+    {MegaSec, Sec, MicroSec} = erlang:timestamp(),
+    MaxMon = erlang:monotonic_time(),
+    TsMin = erlang:convert_time_unit(MinMon+TO,
+				     native,
+				     micro_seconds),
+    TsMax = erlang:convert_time_unit(MaxMon+TO,
+				     native,
+				     micro_seconds),
+    TsTime = (MegaSec*1000000+Sec)*1000000+MicroSec,
+    case (TsMin =< TsTime) andalso (TsTime =< TsMax) of
+	true ->
+	    NewTO = case erlang:time_offset() of
+			TO ->
+			    TO;
+			_ ->
+			    check_time_offset_change(Mon, TO, 0)
+		    end,
+	    check_erlang_timestamp(Done, Mon, NewTO);
+	false ->
+	    io:format("TsMin=~p TsTime=~p TsMax=~p~n", [TsMin, TsTime, TsMax]),
+	    ?t:format("Detected inconsistency; "
+		      "checking for time_offset change...", []),
+	    case check_time_offset_change(Mon, TO, 1000) of
+		{TO, false} ->
+		    ?t:fail(timestamp_inconsistency);
+		{NewTO, true} ->
+		    ?t:format("time_offset changed", []),
+		    check_erlang_timestamp(Done, Mon, NewTO)
+	    end
+    end.
+
+check_time_offset_change(Mon, TO, Wait) ->
+    process_changed_time_offset(Mon, TO, false, Wait).
+
+process_changed_time_offset(Mon, TO, Changed, Wait) ->
+    receive
+	{'CHANGE', Mon, time_offset, clock_service, NewTO} ->
+	    process_changed_time_offset(Mon, NewTO, true, Wait)
+    after Wait ->
+	    case erlang:time_offset() of
+		TO ->
+		    {TO, Changed};
+		_OtherTO ->
+		    receive
+			{'CHANGE', Mon, time_offset, clock_service, NewTO} ->
+			    process_changed_time_offset(Mon, NewTO, true, Wait)
+		    end
+	    end
+    end.
+    
+
+
 %% Returns the test data: a list of {Utc, Local} tuples.
 
 test_data() ->
@@ -554,4 +1009,25 @@ bad_dates() ->
 
      {{1996, 4, 30}, {12, 0, -1}},		% Sec
      {{1996, 4, 30}, {12, 0, 60}}].
-     
+
+start_node(Config) ->
+    start_node(Config, "").
+
+start_node(Config, Args) ->
+    TestCase = ?config(testcase, Config),
+    PA = filename:dirname(code:which(?MODULE)),
+    ESTime = erlang:monotonic_time(1) + erlang:time_offset(1),
+    Unique = erlang:unique_integer([positive]),
+    Name = list_to_atom(atom_to_list(?MODULE)
+			++ "-"
+			++ atom_to_list(TestCase)
+			++ "-"
+			++ integer_to_list(ESTime)
+			++ "-"
+			++ integer_to_list(Unique)),
+    test_server:start_node(Name,
+			   slave,
+			   [{args, "-pa " ++ PA ++ " " ++ Args}]).
+
+stop_node(Node) ->
+    test_server:stop_node(Node).
diff --git a/erts/emulator/test/timer_bif_SUITE.erl b/erts/emulator/test/timer_bif_SUITE.erl
index c28224729d..d406456f98 100644
--- a/erts/emulator/test/timer_bif_SUITE.erl
+++ b/erts/emulator/test/timer_bif_SUITE.erl
@@ -26,11 +26,17 @@
 	 cancel_timer_1/1,
 	 start_timer_big/1, send_after_big/1,
 	 start_timer_e/1, send_after_e/1, cancel_timer_e/1,
-	 read_timer_trivial/1, read_timer/1,
-	 cleanup/1, evil_timers/1, registered_process/1]).
+	 read_timer_trivial/1, read_timer/1, read_timer_async/1,
+	 cleanup/1, evil_timers/1, registered_process/1, same_time_yielding/1,
+	 same_time_yielding_with_cancel/1, same_time_yielding_with_cancel_other/1,
+	 same_time_yielding_with_cancel_other_accessor/1, auto_cancel_yielding/1]).
 
 -include_lib("test_server/include/test_server.hrl").
 
+-define(SHORT_TIMEOUT, 5000). %% Bif timers as short as this may be pre-allocated
+-define(TIMEOUT_YIELD_LIMIT, 100).
+-define(AUTO_CANCEL_YIELD_LIMIT, 100).
+
 init_per_testcase(_Case, Config) ->
     ?line Dog=test_server:timetrap(test_server:seconds(30)),
     case catch erts_debug:get_internal_state(available_internal_state) of
@@ -45,6 +51,7 @@ end_per_testcase(_Case, Config) ->
     ok.
 
 init_per_suite(Config) ->
+    erts_debug:set_internal_state(available_internal_state, true),
     Config.
 
 end_per_suite(_Config) ->
@@ -56,8 +63,12 @@ all() ->
     [start_timer_1, send_after_1, send_after_2,
      cancel_timer_1, start_timer_e, send_after_e,
      cancel_timer_e, start_timer_big, send_after_big,
-     read_timer_trivial, read_timer, cleanup, evil_timers,
-     registered_process].
+     read_timer_trivial, read_timer, read_timer_async,
+     cleanup, evil_timers, registered_process,
+     same_time_yielding, same_time_yielding_with_cancel,
+     same_time_yielding_with_cancel_other,
+     same_time_yielding_with_cancel_other_accessor,
+     auto_cancel_yielding].
 
 groups() -> 
     [].
@@ -162,7 +173,7 @@ cancel_timer_1(Config) when is_list(Config) ->
 start_timer_e(doc) -> ["Error cases for start_timer/3"];
 start_timer_e(Config) when is_list(Config) ->
     ?line {'EXIT', _} = (catch erlang:start_timer(-4, self(), hej)),
-    ?line {'EXIT', _} = (catch erlang:start_timer(4728472847827482,
+    ?line {'EXIT', _} = (catch erlang:start_timer(1 bsl 64,
 						  self(), hej)),
 
     ?line {'EXIT', _} = (catch erlang:start_timer(4.5, self(), hej)),
@@ -180,7 +191,7 @@ send_after_e(doc) -> ["Error cases for send_after/3"];
 send_after_e(suite) -> [];
 send_after_e(Config) when is_list(Config) ->
     ?line {'EXIT', _} = (catch erlang:send_after(-4, self(), hej)),
-    ?line {'EXIT', _} = (catch erlang:send_after(4728472847827482,
+    ?line {'EXIT', _} = (catch erlang:send_after(1 bsl 64,
 						 self(), hej)),
 
     ?line {'EXIT', _} = (catch erlang:send_after(4.5, self(), hej)),
@@ -213,20 +224,58 @@ read_timer_trivial(Config) when is_list(Config) ->
 read_timer(doc) -> ["Test that read_timer/1 seems to return the correct values."];
 read_timer(suite) -> [];
 read_timer(Config) when is_list(Config) ->
-    ?line Big = 1 bsl 31,
-    ?line R = erlang:send_after(Big, self(), hej_hopp),
+    process_flag(scheduler, 1),
+    Big = 1 bsl 31,
+    R = erlang:send_after(Big, self(), hej_hopp),
+
+    receive after 200 -> ok end,		% Delay and clear reductions.
+    Left = erlang:read_timer(R),
+    Left2 = erlang:cancel_timer(R),
+    case Left == Left2 of
+	true -> ok;
+	false -> Left = Left2 + 1
+    end,
+    false = erlang:read_timer(R),
 
-    ?line receive after 200 -> ok end,		% Delay and clear reductions.
-    ?line Left = erlang:read_timer(R),
-    ?line Left = erlang:cancel_timer(R),
-    ?line false = erlang:read_timer(R),
+    case Big - Left of
+	Diff when Diff >= 200, Diff < 10000 ->
+	    ok;
+	_Diff ->
+	    test_server:fail({big, Big, Left})
+    end,
+    process_flag(scheduler, 0),
+    ok.
 
-    ?line case Big - Left of
-	      Diff when Diff >= 200, Diff < 10000 ->
-		  ok;
-	      _Diff ->
-		  test_server:fail({big, Big, Left})
-	  end,
+read_timer_async(doc) -> ["Test that read_timer/1 seems to return the correct values."];
+read_timer_async(suite) -> [];
+read_timer_async(Config) when is_list(Config) ->
+    process_flag(scheduler, 1),
+    Big = 1 bsl 33,
+    R = erlang:send_after(Big, self(), hej_hopp),
+
+    %% Access from another scheduler
+    process_flag(scheduler, erlang:system_info(schedulers_online)),
+
+    receive after 200 -> ok end,		% Delay and clear reductions.
+    ok = erlang:read_timer(R, [{async, true}]),
+    ok = erlang:cancel_timer(R, [{async, true}, {info, true}]),
+    ok = erlang:read_timer(R, [{async, true}]),
+
+    {read_timer, R, Left} = receive_one(),
+    {cancel_timer, R, Left2} = receive_one(),
+    case Left == Left2 of
+	true -> ok;
+	false -> Left = Left2 + 1
+    end,
+    {read_timer, R, false} = receive_one(),
+
+    case Big - Left of
+	Diff when Diff >= 200, Diff < 10000 ->
+	    ok;
+	_Diff ->
+	    test_server:fail({big, Big, Left})
+    end,
+    process_flag(scheduler, 0),
     ok.
 
 cleanup(doc) -> [];
@@ -236,39 +285,42 @@ cleanup(Config) when is_list(Config) ->
     %% Timer on dead process
     ?line P1 = spawn(fun () -> ok end),
     ?line wait_until(fun () -> process_is_cleaned_up(P1) end),
-    ?line T1 = erlang:start_timer(10000, P1, "hej"),
-    ?line T2 = erlang:send_after(10000, P1, "hej"),
+    ?line T1 = erlang:start_timer(?SHORT_TIMEOUT*2, P1, "hej"),
+    ?line T2 = erlang:send_after(?SHORT_TIMEOUT*2, P1, "hej"),
+    receive after 1000 -> ok end,
     ?line Mem = mem(),
     ?line false = erlang:read_timer(T1),
     ?line false = erlang:read_timer(T2),
     ?line Mem = mem(),
     %% Process dies before timeout
-    ?line P2 = spawn(fun () -> receive after 500 -> ok end end),
-    ?line T3 = erlang:start_timer(10000, P2, "hej"),
-    ?line T4 = erlang:send_after(10000, P2, "hej"),
-    ?line true = Mem < mem(),
+    ?line P2 = spawn(fun () -> receive after (?SHORT_TIMEOUT div 10) -> ok end end),
+    ?line T3 = erlang:start_timer(?SHORT_TIMEOUT*2, P2, "hej"),
+    ?line T4 = erlang:send_after(?SHORT_TIMEOUT*2, P2, "hej"),
+    ?line true = mem_larger_than(Mem),
     ?line true = is_integer(erlang:read_timer(T3)),
     ?line true = is_integer(erlang:read_timer(T4)),
     ?line wait_until(fun () -> process_is_cleaned_up(P2) end),
+    receive after 1000 -> ok end,
     ?line false = erlang:read_timer(T3),
     ?line false = erlang:read_timer(T4),
     ?line Mem = mem(),
     %% Cancel timer
-    ?line P3 = spawn(fun () -> receive after 20000 -> ok end end),
-    ?line T5 = erlang:start_timer(10000, P3, "hej"),
-    ?line T6 = erlang:send_after(10000, P3, "hej"),
-    ?line true = Mem < mem(),
+    ?line P3 = spawn(fun () -> receive after ?SHORT_TIMEOUT*4 -> ok end end),
+    ?line T5 = erlang:start_timer(?SHORT_TIMEOUT*2, P3, "hej"),
+    ?line T6 = erlang:send_after(?SHORT_TIMEOUT*2, P3, "hej"),
+    ?line true = mem_larger_than(Mem),
     ?line true = is_integer(erlang:cancel_timer(T5)),
     ?line true = is_integer(erlang:cancel_timer(T6)),
     ?line false = erlang:read_timer(T5),
     ?line false = erlang:read_timer(T6),
     ?line exit(P3, kill),
+    ?line wait_until(fun () -> process_is_cleaned_up(P3) end),
     ?line Mem = mem(),
     %% Timeout
     ?line Ref = make_ref(),
-    ?line T7 = erlang:start_timer(500, self(), Ref),
-    ?line T8 = erlang:send_after(500, self(), Ref),
-    ?line true = Mem < mem(),
+    ?line T7 = erlang:start_timer(?SHORT_TIMEOUT+1, self(), Ref),
+    ?line T8 = erlang:send_after(?SHORT_TIMEOUT+1, self(), Ref),
+    ?line true = mem_larger_than(Mem),
     ?line true = is_integer(erlang:read_timer(T7)),
     ?line true = is_integer(erlang:read_timer(T8)),
     ?line receive {timeout, T7, Ref} -> ok end,
@@ -420,10 +472,10 @@ registered_process(suite) -> [];
 registered_process(Config) when is_list(Config) ->
     ?line Mem = mem(),
     %% Cancel
-    ?line T1 = erlang:start_timer(500, ?MODULE, "hej"),
-    ?line T2 = erlang:send_after(500, ?MODULE, "hej"),
+    ?line T1 = erlang:start_timer(?SHORT_TIMEOUT+1, ?MODULE, "hej"),
+    ?line T2 = erlang:send_after(?SHORT_TIMEOUT+1, ?MODULE, "hej"),
     ?line undefined = whereis(?MODULE),
-    ?line true = Mem < mem(),
+    ?line true = mem_larger_than(Mem),
     ?line true = is_integer(erlang:cancel_timer(T1)),
     ?line true = is_integer(erlang:cancel_timer(T2)),
     ?line false = erlang:read_timer(T1),
@@ -431,10 +483,10 @@ registered_process(Config) when is_list(Config) ->
     ?line Mem = mem(),
     %% Timeout register after start
     ?line Ref1 = make_ref(),
-    ?line T3 = erlang:start_timer(500, ?MODULE, Ref1),
-    ?line T4 = erlang:send_after(500, ?MODULE, Ref1),
+    ?line T3 = erlang:start_timer(?SHORT_TIMEOUT+1, ?MODULE, Ref1),
+    ?line T4 = erlang:send_after(?SHORT_TIMEOUT+1, ?MODULE, Ref1),
     ?line undefined = whereis(?MODULE),
-    ?line true = Mem < mem(),
+    ?line true = mem_larger_than(Mem),
     ?line true = is_integer(erlang:read_timer(T3)),
     ?line true = is_integer(erlang:read_timer(T4)),
     ?line true = register(?MODULE, self()),
@@ -443,9 +495,9 @@ registered_process(Config) when is_list(Config) ->
     ?line Mem = mem(),
     %% Timeout register before start
     ?line Ref2 = make_ref(),
-    ?line T5 = erlang:start_timer(500, ?MODULE, Ref2),
-    ?line T6 = erlang:send_after(500, ?MODULE, Ref2),
-    ?line true = Mem < mem(),
+    ?line T5 = erlang:start_timer(?SHORT_TIMEOUT+1, ?MODULE, Ref2),
+    ?line T6 = erlang:send_after(?SHORT_TIMEOUT+1, ?MODULE, Ref2),
+    ?line true = mem_larger_than(Mem),
     ?line true = is_integer(erlang:read_timer(T5)),
     ?line true = is_integer(erlang:read_timer(T6)),
     ?line receive {timeout, T5, Ref2} -> ok end,
@@ -454,10 +506,134 @@ registered_process(Config) when is_list(Config) ->
     ?line true = unregister(?MODULE),
     ?line ok.
 
-mem() ->
-    AA = erlang:system_info(allocated_areas),
-    {value,{bif_timer,Mem}} = lists:keysearch(bif_timer, 1, AA),
-    Mem.
+same_time_yielding(Config) when is_list(Config) ->
+    Mem = mem(),
+    SchdlrsOnln = erlang:system_info(schedulers_online),
+    Tmo = erlang:monotonic_time(milli_seconds) + 3000,
+    Tmrs = lists:map(fun (I) ->
+			     process_flag(scheduler, (I rem SchdlrsOnln) + 1),
+			     erlang:start_timer(Tmo, self(), hej, [{abs, true}])
+		     end,
+		     lists:seq(1, (?TIMEOUT_YIELD_LIMIT*3+1)*SchdlrsOnln)),
+    true = mem_larger_than(Mem),
+    lists:foreach(fun (Tmr) -> receive {timeout, Tmr, hej} -> ok end end, Tmrs),
+    Done = erlang:monotonic_time(milli_seconds),
+    true = Done >= Tmo,
+    case erlang:system_info(build_type) of
+	opt -> true = Done < Tmo + 200;
+	_ -> true = Done < Tmo + 1000
+    end,
+    Mem = mem(),
+    ok.
+
+same_time_yielding_with_cancel(Config) when is_list(Config) ->
+    same_time_yielding_with_cancel_test(false, false).
+
+same_time_yielding_with_cancel_other(Config) when is_list(Config) ->
+    same_time_yielding_with_cancel_test(true, false).
+
+same_time_yielding_with_cancel_other_accessor(Config) when is_list(Config) ->
+    same_time_yielding_with_cancel_test(true, true).
+
+do_cancel_tmrs(Tmo, Tmrs, Tester) ->
+    BeginCancel = erlang:convert_time_unit(Tmo,
+					   milli_seconds,
+					   micro_seconds) - 100,
+    busy_wait_until(fun () ->
+			    erlang:monotonic_time(micro_seconds) >= BeginCancel
+		    end),
+    lists:foreach(fun (Tmr) ->
+			  erlang:cancel_timer(Tmr,
+					      [{async, true},
+					       {info, true}])
+		  end, Tmrs),
+    case Tester == self() of
+	true -> ok;
+	false -> forward_msgs(Tester)
+    end.
+
+same_time_yielding_with_cancel_test(Other, Accessor) ->
+    Mem = mem(),
+    SchdlrsOnln = erlang:system_info(schedulers_online),
+    Tmo = erlang:monotonic_time(milli_seconds) + 3000,
+    Tester = self(),
+    Cancelor = case Other of
+		   false ->
+		       Tester;
+		   true ->
+		       spawn(fun () ->
+				     receive
+					 {timers, Tmrs} ->
+					     do_cancel_tmrs(Tmo, Tmrs, Tester)
+				     end
+			     end)
+	       end,
+    Opts = case Accessor of
+	       false -> [{abs, true}];
+	       true -> [{accessor, Cancelor}, {abs, true}]
+	   end,
+    Tmrs = lists:map(fun (I) ->
+			     process_flag(scheduler, (I rem SchdlrsOnln) + 1),
+			     erlang:start_timer(Tmo, self(), hej, Opts)
+		     end,
+		     lists:seq(1, (?TIMEOUT_YIELD_LIMIT*3+1)*SchdlrsOnln)),
+    true = mem_larger_than(Mem),
+    case Other of
+	false ->
+	    do_cancel_tmrs(Tmo, Tmrs, Tester);
+	true ->
+	    Cancelor ! {timers, Tmrs}
+    end,
+    {Tmos, Cncls} = lists:foldl(fun (Tmr, {T, C}) ->
+					receive
+					    {timeout, Tmr, hej} ->
+						receive
+						    {cancel_timer, Tmr, Info} ->
+							false = Info,
+							{T+1, C}
+						end;
+					    {cancel_timer, Tmr, false} ->
+						receive
+						    {timeout, Tmr, hej} ->
+							{T+1, C}
+						end;
+					    {cancel_timer, Tmr, TimeLeft} ->
+						true = is_integer(TimeLeft),
+						{T, C+1}
+					end
+				end,
+				{0, 0},
+				Tmrs),
+    io:format("Timeouts: ~p Cancels: ~p~n", [Tmos, Cncls]),
+    Mem = mem(),
+    case Other of
+	true -> exit(Cancelor, bang);
+	false -> ok
+    end,
+    {comment,
+     "Timeouts: " ++ integer_to_list(Tmos) ++ " Cancels: "
+     ++ integer_to_list(Cncls)}.
+
+auto_cancel_yielding(Config) when is_list(Config) ->
+    Mem = mem(),
+    SchdlrsOnln = erlang:system_info(schedulers_online),
+    P = spawn(fun () ->
+		      lists:foreach(
+			fun (I) ->
+				process_flag(scheduler, (I rem SchdlrsOnln)+1),
+				erlang:start_timer((1 bsl 28)+I*10, self(), hej)
+			end,
+			lists:seq(1,
+				  ((?AUTO_CANCEL_YIELD_LIMIT*3+1)
+				   *SchdlrsOnln))),
+		      receive after infinity -> ok end
+	      end),
+    true = mem_larger_than(Mem),
+    exit(P, bang),
+    wait_until(fun () -> process_is_cleaned_up(P) end),
+    receive after 1000 -> ok end,
+    Mem = mem(),
+    ok.
 
 process_is_cleaned_up(P) when is_pid(P) ->
     undefined == erts_debug:get_internal_state({process_status, P}).
@@ -468,6 +644,19 @@ wait_until(Pred) when is_function(Pred) ->
 	_ -> receive after 50 -> ok end, wait_until(Pred)
     end.
 
+busy_wait_until(Pred) when is_function(Pred) ->
+    case catch Pred() of
+	true -> ok;
+	_ -> busy_wait_until(Pred)
+    end.
+
+forward_msgs(To) ->
+    receive
+	Msg ->
+	    To ! Msg
+    end,
+    forward_msgs(To).
+
 get(Time, Msg) ->
     receive 
 	Msg ->
@@ -486,9 +675,10 @@ get_msg() ->
     end.
 
 start_slave() ->
-    ?line {A, B, C} = now(),
     ?line Pa = filename:dirname(code:which(?MODULE)),
-    ?line Name = atom_to_list(?MODULE) ++ "-" ++ integer_to_list(A+B+C),
+    ?line Name = atom_to_list(?MODULE)
+	++ "-" ++ integer_to_list(erlang:system_time(seconds))
+	++ "-" ++ integer_to_list(erlang:unique_integer([positive])),
     {ok, Node} = ?t:start_node(Name, slave, [{args, "-pa " ++ Pa}]),
     Node.
 
@@ -549,5 +739,58 @@ type(X) when is_port(X) -> {port, node(X)};
 type(X) when is_binary(X) -> binary;
 type(X) when is_atom(X) -> atom;
 type(_) -> unknown.
-    
 
+
+mem_larger_than(no_fix_alloc) ->
+    true;
+mem_larger_than(Mem) ->
+    mem() > Mem.
+
+mem() ->
+    erts_debug:set_internal_state(wait, deallocations),
+    erts_debug:set_internal_state(wait, deallocations),
+    case mem_get() of
+	{-1, -1} -> no_fix_alloc;
+	{A, U} -> io:format("mem = ~p ~p~n", [A, U]), U
+    end.
+
+mem_get() ->
+    % Bif timer memory
+    Ref = make_ref(),
+    erlang:system_info({memory_internal, Ref, [fix_alloc]}),
+    mem_recv(erlang:system_info(schedulers), Ref, {0, 0}).
+
+mem_recv(0, _Ref, AU) ->
+    AU;
+mem_recv(N, Ref, AU) ->
+    receive
+	{Ref, _, IL} ->
+	    mem_recv(N-1, Ref, mem_parse_ilists(IL, AU))
+    end.
+
+
+mem_parse_ilists([], AU) ->
+    AU;
+mem_parse_ilists([I|Is], AU) ->
+    mem_parse_ilists(Is, mem_parse_ilist(I, AU)).
+
+mem_parse_ilist({fix_alloc, false}, _) ->
+    {-1, -1};
+mem_parse_ilist({fix_alloc, _, IDL}, {A, U}) ->
+    case lists:keyfind(fix_types, 1, IDL) of
+	{fix_types, TL} ->
+	    {ThisA, ThisU} = mem_get_btm_aus(TL, 0, 0),
+	    {ThisA + A, ThisU + U};
+	{fix_types, Mask, TL} ->
+	    {ThisA, ThisU} = mem_get_btm_aus(TL, 0, 0),
+	    {(ThisA + A) band Mask , (ThisU + U) band Mask}
+    end.
+
+mem_get_btm_aus([], A, U) ->
+    {A, U};
+mem_get_btm_aus([{BtmType, BtmA, BtmU} | Types],
+	    A, U) when BtmType == bif_timer;
+		       BtmType == accessor_bif_timer ->
+    mem_get_btm_aus(Types, BtmA+A, BtmU+U);
+mem_get_btm_aus([_|Types], A, U) ->
+    mem_get_btm_aus(Types, A, U).
diff --git a/erts/emulator/test/trace_bif_SUITE.erl b/erts/emulator/test/trace_bif_SUITE.erl
index 2c78aa394f..0f68e7b27c 100644
--- a/erts/emulator/test/trace_bif_SUITE.erl
+++ b/erts/emulator/test/trace_bif_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1998-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1998-2014. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -260,7 +260,9 @@ bif_process() ->
 	    apply(erlang, Name, Args),
 	    bif_process();
 	{do_time_bif} ->
-	    _ = time(),				%Assignment tells compiler to keep call.
+	    %% Match the return value to ensure that the time() call
+	    %% is not optimized away.
+	    {_,_,_} = time(),
 	    bif_process();
 	{do_statistics_bif} ->
 	    statistics(runtime),
@@ -276,13 +278,16 @@ trace_info_old_code(Config) when is_list(Config) ->
     ?line MFA = {M,F,0} = {test,foo,0},
     ?line Fname = atom_to_list(M)++".erl",
     ?line AbsForms = 
-	[{attribute,1,module,M},             % -module(M).
-	 {attribute,2,export,[{F,0}]},       % -export([F/0]).
-	 {function,3,F,0,                    % F() ->
-	  [{clause,4,[],[],[{atom,4,F}]}]}], %     F.
+	[{attribute,a(1),module,M},                % -module(M).
+	 {attribute,a(2),export,[{F,0}]},          % -export([F/0]).
+	 {function,a(3),F,0,                       % F() ->
+	  [{clause,a(4),[],[],[{atom,a(4),F}]}]}], %     F.
     %%
     ?line {ok,M,Mbin} = compile:forms(AbsForms),
     ?line {module,M} = code:load_binary(M, Fname, Mbin),
     ?line true  = erlang:delete_module(M),
     ?line {traced,undefined} = erlang:trace_info(MFA, traced),
     ok.
+
+a(L) ->
+    erl_anno:new(L).
diff --git a/erts/emulator/test/trace_call_time_SUITE.erl b/erts/emulator/test/trace_call_time_SUITE.erl
index 3036d2957b..9c444ed682 100644
--- a/erts/emulator/test/trace_call_time_SUITE.erl
+++ b/erts/emulator/test/trace_call_time_SUITE.erl
@@ -326,10 +326,10 @@ combo(Config) when is_list(Config) ->
 
     %%
     ?line [3,2,1] = seq_r(1, 3, fun(X) -> X+1 end),
-    ?line T0 = now(),
+    ?line T0 = erlang:monotonic_time(),
     ?line with_bif(Nbc),
-    ?line T1 = now(),
-    ?line TimeB = timer:now_diff(T1,T0),
+    ?line T1 = erlang:monotonic_time(),
+    ?line TimeB = erlang:convert_time_unit(T1-T0, native, micro_seconds),
     %%
 
     ?line List = collect(100),
@@ -695,17 +695,17 @@ setup(Opts) ->
     Pid.
 
 execute(Pids, Mfa) when is_list(Pids) ->
-    T0 = now(),
+    T0 = erlang:monotonic_time(),
     [P  ! {self(), execute, Mfa} || P <- Pids],
     As = [receive {P, answer, Answer} -> Answer end || P <- Pids],
-    T1 = now(),
-    {As, timer:now_diff(T1,T0)};
+    T1 = erlang:monotonic_time(),
+    {As, erlang:convert_time_unit(T1-T0, native, micro_seconds)};
 execute(P, Mfa) ->
-    T0 = now(),
+    T0 = erlang:monotonic_time(),
     P  ! {self(), execute, Mfa},
     A  = receive {P, answer, Answer} -> Answer end,
-    T1 = now(),
-    {A, timer:now_diff(T1,T0)}.
+    T1 = erlang:monotonic_time(),
+    {A, erlang:convert_time_unit(T1-T0, native, micro_seconds)}.
 
 
 
diff --git a/erts/emulator/test/trace_meta_SUITE.erl b/erts/emulator/test/trace_meta_SUITE.erl
index 45987cc319..25a59e0b07 100644
--- a/erts/emulator/test/trace_meta_SUITE.erl
+++ b/erts/emulator/test/trace_meta_SUITE.erl
@@ -72,7 +72,7 @@ config(priv_dir,_) ->
 	 info/1, tracer/1, combo/1, nosilent/1]).
 	 
 init_per_testcase(_Case, Config) ->
-    ?line Dog=test_server:timetrap(test_server:minutes(5)),
+    Dog=test_server:timetrap(test_server:minutes(5)),
     [{watchdog, Dog}|Config].
 
 end_per_testcase(_Case, Config) ->
@@ -179,107 +179,112 @@ nosilent(Config) when is_list(Config) ->
 %%%
 
 basic_test() ->
-    ?line Pid = setup(),
-    ?line erlang:trace_pattern({?MODULE,'_','_'},[],[meta]),
-    ?line [1,1,1,0] = apply_slave(?MODULE,exported_wrap,[1]),
-    ?line ?CTT(Pid,{?MODULE,exported_wrap,[1]}) = receive_next(), 
-    ?line ?CTT(Pid,{?MODULE,exported,[1]}) = receive_next(),
-    ?line ?CTT(Pid,{?MODULE,local,[1]}) = receive_next(),
-    ?line ?CTT(Pid,{?MODULE,local2,[1]}) = receive_next(),
-    ?line ?CTT(Pid,{?MODULE,local_tail,[1]}) = receive_next(),
-    ?line erlang:trace_pattern({?MODULE,'_','_'},false,[meta]),
-    ?line [1,1,1,0] = apply_slave(?MODULE,exported_wrap,[1]),
-    ?line ?NM,
-    ?line [1,1,1,0] = lambda_slave(fun() ->
-					   exported_wrap(1)
-				   end),
-    ?line ?NM, 
-    ?line erlang:trace_pattern({?MODULE,'_','_'},[],[meta]),
-    ?line [1,1,1,0] = lambda_slave(fun() ->
-					   exported_wrap(1)
-				   end),
-    ?line ?CTT(Pid,{?MODULE,_,_}) = receive_next(), %% The fun
-    ?line ?CTT(Pid,{?MODULE,exported_wrap,[1]}) = receive_next(), 
-    ?line ?CTT(Pid,{?MODULE,exported,[1]}) = receive_next(),
-    ?line ?CTT(Pid,{?MODULE,local,[1]}) = receive_next(),
-    ?line ?CTT(Pid,{?MODULE,local2,[1]}) = receive_next(),
-    ?line ?CTT(Pid,{?MODULE,local_tail,[1]}) = receive_next(),
-    ?line erlang:trace_pattern({?MODULE,'_','_'},false,[meta]),
-    ?line shutdown(),
-    ?line ?NM,
+    Pid = setup(),
+    erlang:trace_pattern({?MODULE,'_','_'},[],[meta]),
+    [1,1,1,0] = apply_slave(?MODULE,exported_wrap,[1]),
+    ?CTT(Pid,{?MODULE,exported_wrap,[1]}) = receive_next(),
+    ?CTT(Pid,{?MODULE,exported,[1]}) = receive_next(),
+    ?CTT(Pid,{?MODULE,local,[1]}) = receive_next(),
+    ?CTT(Pid,{?MODULE,local2,[1]}) = receive_next(),
+    ?CTT(Pid,{?MODULE,local_tail,[1]}) = receive_next(),
+    erlang:trace_pattern({?MODULE,'_','_'},false,[meta]),
+    [1,1,1,0] = apply_slave(?MODULE,exported_wrap,[1]),
+    ?NM,
+    [1,1,1,0] = lambda_slave(fun() ->
+                                     exported_wrap(1)
+                             end),
+    ?NM,
+    erlang:trace_pattern({?MODULE,'_','_'},[],[meta]),
+    [1,1,1,0] = lambda_slave(fun() ->
+                                     exported_wrap(1)
+                             end),
+    ?CTT(Pid,{?MODULE,_,_}) = receive_next(), %% The fun
+    ?CTT(Pid,{?MODULE,exported_wrap,[1]}) = receive_next(),
+    ?CTT(Pid,{?MODULE,exported,[1]}) = receive_next(),
+    ?CTT(Pid,{?MODULE,local,[1]}) = receive_next(),
+    ?CTT(Pid,{?MODULE,local2,[1]}) = receive_next(),
+    ?CTT(Pid,{?MODULE,local_tail,[1]}) = receive_next(),
+    erlang:trace_pattern({?MODULE,'_','_'},false,[meta]),
+    shutdown(),
+    ?NM,
     ok.
 
 %% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 return_test() ->
-    ?line Pid = setup(),
-    ?line erlang:trace_pattern({?MODULE,'_','_'},[{'_',[],[{return_trace}]}],
+    Pid = setup(),
+    erlang:trace_pattern({?MODULE,'_','_'},[{'_',[],[{return_trace}]}],
 			 [meta]),
-    ?line erlang:trace_pattern({erlang,phash2,'_'},[{'_',[],[{return_trace}]}],
+    erlang:trace_pattern({erlang,phash2,'_'},[{'_',[],[{return_trace}]}],
 			 [meta]),
-    ?line [1,1,1,0] = apply_slave(?MODULE,exported_wrap,[1]),
-    ?line ?CTT(Pid,{?MODULE,exported_wrap,[1]}) = receive_next(), 
-    ?line ?CTT(Pid,{?MODULE,exported,[1]}) = receive_next(),
-    ?line ?CTT(Pid,{?MODULE,local,[1]}) = receive_next(),
-    ?line ?CTT(Pid,{?MODULE,local2,[1]}) = receive_next(),
-    ?line ?CTT(Pid,{?MODULE,local_tail,[1]}) = receive_next(),
-    ?line ?CTT(Pid,{erlang,phash2,[1,1]}) = receive_next(),
-    ?line ?RFT(Pid,{erlang,phash2,2},0) = receive_next(),
-    ?line ?RFT(Pid,{?MODULE,local_tail,1},[1,0]) = receive_next(),
-    ?line ?RFT(Pid,{?MODULE,local2,1},[1,0]) = receive_next(),
-    ?line ?RFT(Pid,{?MODULE,local,1},[1,1,0]) = receive_next(),
-    ?line ?RFT(Pid,{?MODULE,exported,1},[1,1,1,0]) = receive_next(),
-    ?line ?RFT(Pid,{?MODULE,exported_wrap,1},[1,1,1,0]) = receive_next(),
-    ?line shutdown(),
-    ?line ?NM,
+    [1,1,1,0] = apply_slave(?MODULE,exported_wrap,[1]),
+    ?CTT(Pid,{?MODULE,exported_wrap,[1]}) = receive_next(),
+    ?CTT(Pid,{?MODULE,exported,[1]}) = receive_next(),
+    ?CTT(Pid,{?MODULE,local,[1]}) = receive_next(),
+    ?CTT(Pid,{?MODULE,local2,[1]}) = receive_next(),
+    ?CTT(Pid,{?MODULE,local_tail,[1]}) = receive_next(),
+    ?CTT(Pid,{erlang,phash2,[1,1]}) = receive_next(),
+    ?RFT(Pid,{erlang,phash2,2},0) = receive_next(),
+    ?RFT(Pid,{?MODULE,local_tail,1},[1,0]) = receive_next(),
+    ?RFT(Pid,{?MODULE,local2,1},[1,0]) = receive_next(),
+    ?RFT(Pid,{?MODULE,local,1},[1,1,0]) = receive_next(),
+    ?RFT(Pid,{?MODULE,exported,1},[1,1,1,0]) = receive_next(),
+    ?RFT(Pid,{?MODULE,exported_wrap,1},[1,1,1,0]) = receive_next(),
+    shutdown(),
+    ?NM,
     ok.
 
 %% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 on_and_off_test() ->
-    ?line Pid = setup(),
-    ?line 1 = erlang:trace_pattern({?MODULE,local_tail,1},[],[meta]),
-    ?line LocalTail = fun() ->
-			      local_tail(1)
-		      end,
-    ?line [1,0] = lambda_slave(LocalTail),
-    ?line ?CTT(Pid,{?MODULE,local_tail,[1]}) = receive_next(),
-    ?line 0 = erlang:trace_pattern({?MODULE,local_tail,1},[],[global]),
-    ?line [1,0] = lambda_slave(LocalTail),
-    ?line ?NM,
-    ?line 1 = erlang:trace_pattern({?MODULE,exported_wrap,1},[],[meta]),
-    ?line [1,1,1,0] = apply_slave(?MODULE,exported_wrap,[1]),
-    ?line ?CTT(Pid,{?MODULE,exported_wrap,[1]}) = receive_next(),
-    ?line 1 = erlang:trace_pattern({erlang,phash2,2},[],[meta]),
-    ?line [1,1,1,0] = apply_slave(?MODULE,exported_wrap,[1]),
-    ?line ?CTT(Pid,{?MODULE,exported_wrap,[1]}) = receive_next(),
-    ?line ?CTT(Pid,{erlang,phash2,[1,1]}) = receive_next(),
-    ?line shutdown(),
-    ?line erlang:trace_pattern({'_','_','_'},false,[meta]),
-    ?line N = erlang:trace_pattern({erlang,'_','_'},true,[meta]),
-    ?line case erlang:trace_pattern({erlang,'_','_'},false,[meta]) of
-	      N -> 
-		  ok;
-	      Else ->
-		  exit({number_mismatch, {expected, N}, {got, Else}})
-	  end,
-    ?line case erlang:trace_pattern({erlang,'_','_'},false,[meta]) of
-	      N -> 
-		  ok;
-	      Else2 ->
-		  exit({number_mismatch, {expected, N}, {got, Else2}})
-	  end,
-    ?line ?NM,
+    Pid = setup(),
+    1 = erlang:trace_pattern({?MODULE,local_tail,1},[],[meta]),
+    LocalTail = fun() ->
+                        local_tail(1)
+                end,
+    [1,0] = lambda_slave(LocalTail),
+    ?CTT(Pid,{?MODULE,local_tail,[1]}) = receive_next(),
+    0 = erlang:trace_pattern({?MODULE,local_tail,1},[],[global]),
+    [1,0] = lambda_slave(LocalTail),
+    ?NM,
+    1 = erlang:trace_pattern({?MODULE,exported_wrap,1},[],[meta]),
+    [1,1,1,0] = apply_slave(?MODULE,exported_wrap,[1]),
+    ?CTT(Pid,{?MODULE,exported_wrap,[1]}) = receive_next(),
+    1 = erlang:trace_pattern({erlang,phash2,2},[],[meta]),
+    [1,1,1,0] = apply_slave(?MODULE,exported_wrap,[1]),
+    ?CTT(Pid,{?MODULE,exported_wrap,[1]}) = receive_next(),
+    ?CTT(Pid,{erlang,phash2,[1,1]}) = receive_next(),
+    shutdown(),
+    erlang:trace_pattern({'_','_','_'},false,[meta]),
+    N = erlang:trace_pattern({erlang,'_','_'},true,[meta]),
+    case erlang:trace_pattern({erlang,'_','_'},false,[meta]) of
+        N -> ok;
+        Else ->
+            exit({number_mismatch, {expected, N}, {got, Else}})
+    end,
+    case erlang:trace_pattern({erlang,'_','_'},false,[meta]) of
+        N -> ok;
+        Else2 ->
+            exit({number_mismatch, {expected, N}, {got, Else2}})
+    end,
+    %% ?NM,
+    %% Can't check for erlang:*/* stuff since common_test or test_server
+    %% will likely call list_to_binary in the logger. just drain any potential
+    %% message
+    ok = flush(),
     ok.
-    
+
+flush() ->
+    receive _ -> flush() after 0 -> ok end.
+
 %% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 stack_grow_test() ->    
-    ?line Pid = setup(),
-    ?line 1 = erlang:trace_pattern({?MODULE,loop,4},
+    Pid = setup(),
+    1 = erlang:trace_pattern({?MODULE,loop,4},
 				   [{'_',[],[{return_trace}]}],[meta]),
-    ?line Num = 1 bsl 15,
-    ?line Surface =
+    Num = 1 bsl 15,
+    Surface =
 	fun (This, ?RFT(P,{?MODULE,loop,4},N), N) when P == Pid->
 		if N == Num ->
 			?NM,
@@ -288,7 +293,7 @@ stack_grow_test() ->
 			This(This, receive_next(), N+1)
 		end
 	end,
-    ?line Dive = 
+    Dive =
 	fun (This, ?CTT(P,{?MODULE,loop,[{hej,hopp},[a,b,c],4.5,N]}), N)
 	    when P == Pid->
 		if N == 0 ->
@@ -297,272 +302,263 @@ stack_grow_test() ->
 			This(This, receive_next(), N-1)
 		end
 	end,
-    ?line apply_slave(?MODULE,loop,[{hej,hopp},[a,b,c],4.5,Num]),
-%     ?line apply_slave_async(?MODULE,loop,[{hej,hopp},[a,b,c],4.5,Num]),
-%     ?line List = collect(test_server:seconds(5)),
-    ?line ok = Dive(Dive, receive_next(), Num),
-    ?line ?NM,
+    apply_slave(?MODULE,loop,[{hej,hopp},[a,b,c],4.5,Num]),
+%     apply_slave_async(?MODULE,loop,[{hej,hopp},[a,b,c],4.5,Num]),
+%     List = collect(test_server:seconds(5)),
+    ok = Dive(Dive, receive_next(), Num),
+    ?NM,
     ok.
 
 %% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 info_test() ->
-    ?line setup(),
-    ?line Prog = [{['$1'],[{is_integer,'$1'}],[{message, false}]},
-		  {'_',[],[]}],
-    ?line Self = self(),
-    ?line GoOn = make_ref(),
-    
-    ?line Pid = 
+    setup(),
+    Prog = [{['$1'],[{is_integer,'$1'}],[{message, false}]}, {'_',[],[]}],
+    Self = self(),
+    GoOn = make_ref(),
+    Pid =
 	spawn_link(
 	  fun () ->
 		  erlang:trace_pattern({?MODULE,exported_wrap,1}, 
-				       Prog, [{meta, Self}]),
+                                       Prog, [{meta, Self}]),
 		  Self ! {self(), GoOn}
 	  end),
-    ?line receive {Pid, GoOn} -> ok end,
-    ?line {traced,false} = erlang:trace_info({?MODULE,exported_wrap,1}, traced),
-    ?line {match_spec, false} = 
+    receive {Pid, GoOn} -> ok end,
+    {traced,false} = erlang:trace_info({?MODULE,exported_wrap,1}, traced),
+    {match_spec, false} =
 	erlang:trace_info({?MODULE,exported_wrap,1}, match_spec),
-    ?line {meta, Self} = erlang:trace_info({?MODULE,exported_wrap,1}, meta),
-    ?line {meta_match_spec, MMS} = 
+    {meta, Self} = erlang:trace_info({?MODULE,exported_wrap,1}, meta),
+    {meta_match_spec, MMS} =
 	erlang:trace_info({?MODULE,exported_wrap,1}, meta_match_spec),
-    ?line case MMS of
-	      Prog ->
-		  ok;
-	      Wrong ->
-		  exit({bad_result, {erlang,trace_info,
-				     [{?MODULE,exported_wrap,1},
-				      meta_match_spec]},
-			{expected, Prog}, {got, Wrong}})
-	  end,
-    ?line erlang:garbage_collect(self()),
-    ?line receive
-	  after 1 ->
-		  ok
-	  end,
-    ?line io:format("~p~n",[MMS]),
-    ?line {meta_match_spec,MMS2} = 
+    case MMS of
+        Prog ->
+            ok;
+        Wrong ->
+            exit({bad_result, {erlang,trace_info,
+                               [{?MODULE,exported_wrap,1},
+                                meta_match_spec]},
+                  {expected, Prog}, {got, Wrong}})
+    end,
+    erlang:garbage_collect(self()),
+    receive
+    after 1 ->
+              ok
+    end,
+    io:format("~p~n",[MMS]),
+    {meta_match_spec,MMS2} =
 	erlang:trace_info({?MODULE,exported_wrap,1}, meta_match_spec),
-    ?line io:format("~p~n",[MMS2]),
-    ?line case MMS2 of
-	      Prog ->
-		  ok;
-	      Wrong2 ->
-		  exit({bad_result, {erlang,trace_info,
-				     [{?MODULE,exported_wrap,1},
-				      meta_match_spec]},
-			{expected, Prog}, {got, Wrong2}})
-	  end,
-    ?line {all, [_|_]=L} = erlang:trace_info({?MODULE,exported_wrap,1}, all),
-    ?line {value, {meta, Self}} = 
-	lists:keysearch(meta, 1, L),
-    ?line {value, {meta_match_spec, MMS}} = 
-	lists:keysearch(meta_match_spec, 1, L),
-    
-    ?line erlang:trace_pattern({?MODULE,exported_wrap,1}, true, [meta]),
-    ?line {meta_match_spec, []} = 
+    io:format("~p~n",[MMS2]),
+    case MMS2 of
+        Prog ->
+            ok;
+        Wrong2 ->
+            exit({bad_result, {erlang,trace_info,
+                               [{?MODULE,exported_wrap,1},
+                                meta_match_spec]},
+                  {expected, Prog}, {got, Wrong2}})
+    end,
+    {all, [_|_]=L} = erlang:trace_info({?MODULE,exported_wrap,1}, all),
+    {value, {meta, Self}} = lists:keysearch(meta, 1, L),
+    {value, {meta_match_spec, MMS}} = lists:keysearch(meta_match_spec, 1, L),
+
+    erlang:trace_pattern({?MODULE,exported_wrap,1}, true, [meta]),
+    {meta_match_spec, []} =
 	erlang:trace_info({?MODULE,exported_wrap,1}, meta_match_spec),
-    
-    ?line erlang:trace_pattern({?MODULE,exported_wrap,1}, false, [meta]),
-    ?line {meta, false} = erlang:trace_info({?MODULE,exported_wrap,1}, meta),
-    ?line {meta_match_spec, false} = 
+
+    erlang:trace_pattern({?MODULE,exported_wrap,1}, false, [meta]),
+    {meta, false} = erlang:trace_info({?MODULE,exported_wrap,1}, meta),
+    {meta_match_spec, false} =
 	erlang:trace_info({?MODULE,exported_wrap,1}, meta_match_spec),
-    ?line {all, false} = erlang:trace_info({?MODULE,exported_wrap,1}, all),
-    
-    ?line shutdown(),
-    ?line ?NM,
+    {all, false} = erlang:trace_info({?MODULE,exported_wrap,1}, all),
+    shutdown(),
+    ?NM,
     ok.
 
 %% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 tracer_test() ->
-    ?line Slave = setup(),
-    ?line Self = self(),
-    
-    ?line MatchSpec = [{'_',[],[{return_trace}]}],
-    ?line Tracer1 = spawn_link(fun () -> relay_n(3, Self) end),
-    ?line Setter = 
-	spawn_link(
-	  fun () ->
-		  erlang:trace_pattern({?MODULE,receiver,1},
-				       MatchSpec,
-				       [{meta,Tracer1}]),
-		  erlang:trace_pattern({erlang,phash2,2},
-				       MatchSpec,
-				       [{meta,Tracer1}]),
-		  Self ! {self(), done}
-	  end),
-    ?line receive {Setter, done} -> ok end,
-    ?line Ref = make_ref(),
-    ?line apply_slave_async(?MODULE, receiver, [Ref]),
-    ?line {Tracer1,?CTT(Slave,{?MODULE,receiver,[Ref]})} = receive_next(100),
-    ?line {Tracer1,?CTT(Slave,{erlang,phash2,[1,1]})} = receive_next(100),
-    ?line {Tracer1,?RFT(Slave,{erlang,phash2,2},0)} = receive_next(100),
+    Slave = setup(),
+    Self = self(),
+
+    MatchSpec = [{'_',[],[{return_trace}]}],
+    Tracer1 = spawn_link(fun () -> relay_n(3, Self) end),
+    Setter = spawn_link(
+               fun () ->
+                       erlang:trace_pattern({?MODULE,receiver,1},
+                                            MatchSpec,
+                                            [{meta,Tracer1}]),
+                       erlang:trace_pattern({erlang,phash2,2},
+                                            MatchSpec,
+                                            [{meta,Tracer1}]),
+                       Self ! {self(), done}
+               end),
+    receive {Setter, done} -> ok end,
+    Ref = make_ref(),
+    apply_slave_async(?MODULE, receiver, [Ref]),
+    {Tracer1,?CTT(Slave,{?MODULE,receiver,[Ref]})} = receive_next(100),
+    {Tracer1,?CTT(Slave,{erlang,phash2,[1,1]})} = receive_next(100),
+    {Tracer1,?RFT(Slave,{erlang,phash2,2},0)} = receive_next(100),
     %% Initiate a return_trace that will fail since the tracer just stopped
-    ?line Slave ! Ref,
-    ?line receive_no_next(100),
+    Slave ! Ref,
+    receive_no_next(100),
     %% The breakpoint has not been hit since the tracer stopped
-    ?line {meta,Tracer1} = 
+    {meta,Tracer1} =
 	erlang:trace_info({?MODULE,receiver,1}, meta),
-    ?line {meta_match_spec, MatchSpec} = 
+    {meta_match_spec, MatchSpec} =
 	erlang:trace_info({?MODULE,receiver,1}, meta_match_spec),
-    ?line {meta,Tracer1} = 
+    {meta,Tracer1} =
 	erlang:trace_info({erlang,phash2,2}, meta),
-    ?line {meta_match_spec, MatchSpec} = 
+    {meta_match_spec, MatchSpec} =
 	erlang:trace_info({erlang,phash2,2}, meta_match_spec),
     %% Initiate trace messages that will fail
-    ?line Ref2 = make_ref(),
-    ?line apply_slave_async(?MODULE, receiver, [Ref2]),
-    ?line Slave ! Ref2,
-    ?line receive_no_next(100),
-    ?line {meta,[]} = 
+    Ref2 = make_ref(),
+    apply_slave_async(?MODULE, receiver, [Ref2]),
+    Slave ! Ref2,
+    receive_no_next(100),
+    {meta,[]} =
 	erlang:trace_info({?MODULE,receiver,1}, meta),
-    ?line {meta_match_spec, MatchSpec} = 
+    {meta_match_spec, MatchSpec} = 
 	erlang:trace_info({?MODULE,receiver,1}, meta_match_spec),
-    ?line {meta,[]} =
+    {meta,[]} =
 	erlang:trace_info({erlang,phash2,2}, meta),
-    ?line {meta_match_spec, MatchSpec} = 
+    {meta_match_spec, MatchSpec} =
 	erlang:trace_info({erlang,phash2,2}, meta_match_spec),
     %% Change tracer
-    ?line Tracer2 = spawn_link(fun () -> relay_n(4, Self) end),
-    ?line erlang:trace_pattern({?MODULE,receiver,1}, 
-			       MatchSpec, 
-			       [{meta,Tracer2}]),
-    ?line erlang:trace_pattern({erlang,phash2,2},
-			       MatchSpec,
-			       [{meta,Tracer2}]),
-    ?line Ref3 = make_ref(),
-    ?line apply_slave_async(?MODULE, receiver, [Ref3]),
-    ?line {Tracer2,?CTT(Slave,{?MODULE,receiver,[Ref3]})} = receive_next(),
-    ?line {Tracer2,?CTT(Slave,{erlang,phash2,[1,1]})} = receive_next(),
-    ?line {Tracer2,?RFT(Slave,{erlang,phash2,2},0)} = receive_next(),
+    Tracer2 = spawn_link(fun () -> relay_n(4, Self) end),
+    erlang:trace_pattern({?MODULE,receiver,1},
+                         MatchSpec,
+                         [{meta,Tracer2}]),
+    erlang:trace_pattern({erlang,phash2,2},
+                         MatchSpec,
+                         [{meta,Tracer2}]),
+    Ref3 = make_ref(),
+    apply_slave_async(?MODULE, receiver, [Ref3]),
+    {Tracer2,?CTT(Slave,{?MODULE,receiver,[Ref3]})} = receive_next(),
+    {Tracer2,?CTT(Slave,{erlang,phash2,[1,1]})} = receive_next(),
+    {Tracer2,?RFT(Slave,{erlang,phash2,2},0)} = receive_next(),
     %% Change tracer between call trace and return trace
-    ?line Tracer3 = spawn_link(fun () -> relay_n(4, Self) end),
-    ?line erlang:trace_pattern({?MODULE,receiver,1}, 
-			       MatchSpec, 
-			       [{meta,Tracer3}]),
-    ?line erlang:trace_pattern({erlang,phash2,2},
-			       MatchSpec,
-			       [{meta,Tracer3}]),
-    ?line Slave ! Ref3, 
+    Tracer3 = spawn_link(fun () -> relay_n(4, Self) end),
+    erlang:trace_pattern({?MODULE,receiver,1},
+                         MatchSpec,
+                         [{meta,Tracer3}]),
+    erlang:trace_pattern({erlang,phash2,2},
+                         MatchSpec,
+                         [{meta,Tracer3}]),
+    Slave ! Ref3,
     %% The return trace should still come from Tracer2
-    ?line {Tracer2,?RFT(Slave,{?MODULE,receiver,1},Ref3)} = receive_next(),
-    ?line Ref4 = make_ref(),
+    {Tracer2,?RFT(Slave,{?MODULE,receiver,1},Ref3)} = receive_next(),
+    Ref4 = make_ref(),
     %% Now should Tracer3 be used
-    ?line apply_slave_async(?MODULE, receiver, [Ref4]),
-    ?line Slave ! Ref4,
-    ?line {Tracer3,?CTT(Slave,{?MODULE,receiver,[Ref4]})} = receive_next(),
-    ?line {Tracer3,?CTT(Slave,{erlang,phash2,[1,1]})} = receive_next(),
-    ?line {Tracer3,?RFT(Slave,{erlang,phash2,2},0)} = receive_next(),
-    ?line {Tracer3,?RFT(Slave,{?MODULE,receiver,1},Ref4)} = receive_next(),
+    apply_slave_async(?MODULE, receiver, [Ref4]),
+    Slave ! Ref4,
+    {Tracer3,?CTT(Slave,{?MODULE,receiver,[Ref4]})} = receive_next(),
+    {Tracer3,?CTT(Slave,{erlang,phash2,[1,1]})} = receive_next(),
+    {Tracer3,?RFT(Slave,{erlang,phash2,2},0)} = receive_next(),
+    {Tracer3,?RFT(Slave,{?MODULE,receiver,1},Ref4)} = receive_next(),
     %% The breakpoint has not been hit since the tracer stopped
-    ?line {meta,Tracer3} = 
-	erlang:trace_info({?MODULE,receiver,1}, meta),
-    ?line {meta_match_spec, MatchSpec} = 
+    {meta,Tracer3} = erlang:trace_info({?MODULE,receiver,1}, meta),
+    {meta_match_spec, MatchSpec} =
 	erlang:trace_info({?MODULE,receiver,1}, meta_match_spec),
-    ?line {meta,Tracer3} = 
+    {meta,Tracer3} =
 	erlang:trace_info({erlang,phash2,2}, meta),
-    ?line {meta_match_spec, MatchSpec} = 
+    {meta_match_spec, MatchSpec} =
 	erlang:trace_info({erlang,phash2,2}, meta_match_spec),
-    
-    ?line shutdown(),
-    ?line ?NM,
+    shutdown(),
+    ?NM,
     ok.
 
 %% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 combo_test() ->
-    ?line Slave = setup(),
-    ?line Self = self(),
-    
-    ?line MatchSpec = [{'_',[],[{return_trace}]}],
-    ?line Flags = lists:sort([call, return_to]),
-    ?line LocalTracer = spawn_link(fun () -> relay_n(6, Self) end),
-    ?line MetaTracer = spawn_link(fun () -> relay_n(4, Self) end),
-    ?line 1 = erlang:trace_pattern({?MODULE,receiver,1}, 
-				   MatchSpec,
-				   [local,{meta,MetaTracer}]),
-    ?line 1 = erlang:trace_pattern({erlang,phash2,2}, 
-				   MatchSpec,
-				   [local,{meta,MetaTracer}]),
-    ?line 1 = erlang:trace(Slave, true, 
-			   [{tracer,LocalTracer} | Flags]),
+    Slave = setup(),
+    Self = self(),
+
+    MatchSpec = [{'_',[],[{return_trace}]}],
+    Flags = lists:sort([call, return_to]),
+    LocalTracer = spawn_link(fun () -> relay_n(6, Self) end),
+    MetaTracer = spawn_link(fun () -> relay_n(4, Self) end),
+    1 = erlang:trace_pattern({?MODULE,receiver,1},
+                             MatchSpec,
+                             [local,{meta,MetaTracer}]),
+    1 = erlang:trace_pattern({erlang,phash2,2},
+                             MatchSpec,
+                             [local,{meta,MetaTracer}]),
+    1 = erlang:trace(Slave, true,
+                     [{tracer,LocalTracer} | Flags]),
     %%
-    ?line {all, TraceInfo1} = 
+    {all, TraceInfo1} =
 	erlang:trace_info({?MODULE,receiver,1}, all),
-    ?line {meta,MetaTracer} = 
+    {meta,MetaTracer} =
 	erlang:trace_info({?MODULE,receiver,1}, meta),
-    ?line {value,{meta,MetaTracer}} = 
+    {value,{meta,MetaTracer}} =
 	lists:keysearch(meta, 1, TraceInfo1),
-    ?line {meta_match_spec,MatchSpec} = 
+    {meta_match_spec,MatchSpec} =
 	erlang:trace_info({?MODULE,receiver,1}, meta_match_spec),
-    ?line {value,{meta_match_spec,MatchSpec}} = 
+    {value,{meta_match_spec,MatchSpec}} =
 	lists:keysearch(meta_match_spec, 1, TraceInfo1),
-    ?line {traced,local} = 
+    {traced,local} =
 	erlang:trace_info({?MODULE,receiver,1}, traced),
-    ?line {value,{traced,local}} = 
+    {value,{traced,local}} =
 	lists:keysearch(traced, 1, TraceInfo1),
-    ?line {match_spec,MatchSpec} = 
+    {match_spec,MatchSpec} =
 	erlang:trace_info({?MODULE,receiver,1}, match_spec),
-    ?line {value,{match_spec,MatchSpec}} = 
+    {value,{match_spec,MatchSpec}} =
 	lists:keysearch(match_spec, 1, TraceInfo1),
     %%
-    ?line {all, TraceInfo2} = 
+    {all, TraceInfo2} =
 	erlang:trace_info({erlang,phash2,2}, all),
-    ?line {meta,MetaTracer} = 
+    {meta,MetaTracer} =
 	erlang:trace_info({erlang,phash2,2}, meta),
-    ?line {value,{meta,MetaTracer}} = 
+    {value,{meta,MetaTracer}} =
 	lists:keysearch(meta, 1, TraceInfo2),
-    ?line {meta_match_spec,MatchSpec} = 
+    {meta_match_spec,MatchSpec} =
 	erlang:trace_info({erlang,phash2,2}, meta_match_spec),
-    ?line {value,{meta_match_spec,MatchSpec}} = 
+    {value,{meta_match_spec,MatchSpec}} =
 	lists:keysearch(meta_match_spec, 1, TraceInfo2),
-    ?line {traced,local} = 
+    {traced,local} =
 	erlang:trace_info({erlang,phash2,2}, traced),
-    ?line {value,{traced,local}} = 
+    {value,{traced,local}} =
 	lists:keysearch(traced, 1, TraceInfo2),
-    ?line {match_spec,MatchSpec} = 
+    {match_spec,MatchSpec} =
 	erlang:trace_info({erlang,phash2,2}, match_spec),
-    ?line {value,{match_spec,MatchSpec}} = 
+    {value,{match_spec,MatchSpec}} =
 	lists:keysearch(match_spec, 1, TraceInfo2),
     %%
-    ?line {flags,Flags1} = erlang:trace_info(Slave, flags),
-    ?line Flags = lists:sort(Flags1),
-    ?line {tracer,LocalTracer} = erlang:trace_info(Slave, tracer),
+    {flags,Flags1} = erlang:trace_info(Slave, flags),
+    Flags = lists:sort(Flags1),
+    {tracer,LocalTracer} = erlang:trace_info(Slave, tracer),
     %%
-    ?line Ref = make_ref(),
-    ?line apply_slave_async(?MODULE, receiver, [Ref]),
-    ?line Slave ! Ref,
-    ?line ?CTT(Slave,{?MODULE,receiver,[Ref]}) = receive_next_bytag(MetaTracer),
-    ?line ?CTT(Slave,{erlang,phash2,[1,1]}) = receive_next_bytag(MetaTracer),
-    ?line ?RFT(Slave,{erlang,phash2,2},0) = receive_next_bytag(MetaTracer),
-    ?line ?RFT(Slave,{?MODULE,receiver,1},Ref) = receive_next_bytag(MetaTracer),
-    ?line ?CT(Slave,{?MODULE,receiver,[Ref]}) = receive_next_bytag(LocalTracer),
-    ?line ?CT(Slave,{erlang,phash2,[1,1]}) = receive_next_bytag(LocalTracer),
-    ?line case {receive_next_bytag(LocalTracer),
+    Ref = make_ref(),
+    apply_slave_async(?MODULE, receiver, [Ref]),
+    Slave ! Ref,
+    ?CTT(Slave,{?MODULE,receiver,[Ref]}) = receive_next_bytag(MetaTracer),
+    ?CTT(Slave,{erlang,phash2,[1,1]}) = receive_next_bytag(MetaTracer),
+    ?RFT(Slave,{erlang,phash2,2},0) = receive_next_bytag(MetaTracer),
+    ?RFT(Slave,{?MODULE,receiver,1},Ref) = receive_next_bytag(MetaTracer),
+    ?CT(Slave,{?MODULE,receiver,[Ref]}) = receive_next_bytag(LocalTracer),
+    ?CT(Slave,{erlang,phash2,[1,1]}) = receive_next_bytag(LocalTracer),
+    case {receive_next_bytag(LocalTracer),
 		receive_next_bytag(LocalTracer)} of
 	      {?RF(Slave,{erlang,phash2,2},0),
 	       ?RT(Slave,{?MODULE,receiver,1})} ->
-		  ?line ok;
+		  ok;
 	      {?RT(Slave,{?MODULE,receiver,1}),
 	       ?RF(Slave,{erlang,phash2,2},0)} ->
-		?line ok;
+		ok;
 	      Error1 -> ?t:fail({unexpected_message, Error1})
 	end,
-    ?line case {receive_next_bytag(LocalTracer),
+    case {receive_next_bytag(LocalTracer),
 		receive_next_bytag(LocalTracer)} of
 	      {?RF(Slave,{?MODULE,receiver,1},Ref),
 	       ?RT(Slave,{?MODULE,slave,1})} ->
-		  ?line ok;
+		  ok;
 	      {?RT(Slave,{?MODULE,slave,1}),
 	       ?RF(Slave,{?MODULE,receiver,1},Ref)} ->
-		  ?line ok;
+		  ok;
 	      Error2 -> ?t:fail({unexpected_message, Error2})
 	  end,
-    
-    ?line shutdown(),
-    ?line ?NM,
+    shutdown(),
+    ?NM,
     ok.
 
 %% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -570,38 +566,38 @@ combo_test() ->
 %% Setup silent local call tracing, and start it using meta trace.
 
 nosilent_test() ->
-    ?line Pid = setup(),
-    ?line Trigger = {?MODULE,id,1},
-    ?line TriggerMS = [{[start],[],[{silent,false}]},
-		       {[stop],[],[{silent,true},{return_trace}]}],
-    ?line 1 = erlang:trace(Pid, true, [call,silent,return_to]),
-    ?line erlang:trace_pattern({?MODULE,'_','_'},[],[local]),
-    ?line 1 = erlang:trace_pattern({?MODULE,local2,1},
-				   [{'_',[],[{return_trace}]}],
-				   [local]),
-    ?line 1 = erlang:trace_pattern({?MODULE,slave,1},false,[local]),
-    ?line 1 = erlang:trace_pattern(Trigger,false,[local]),
-    ?line 1 = erlang:trace_pattern(Trigger,TriggerMS,[meta]),
-    ?line [1,1,1,0] = apply_slave(?MODULE,exported_wrap,[1]),
-    ?line receive_no_next(17),
-    ?line start = apply_slave(?MODULE, id, [start]),
-    ?line ?CTT(Pid,{?MODULE,id,[start]})		= receive_next(),
-    ?line [2,2,2,0] = apply_slave(?MODULE,exported_wrap,[2]),
-    ?line ?CT(Pid,{?MODULE,exported_wrap,[2]})		= receive_next(), 
-    ?line ?CT(Pid,{?MODULE,exported,[2]})		= receive_next(),
-    ?line ?CT(Pid,{?MODULE,local,[2]})			= receive_next(),
-    ?line ?CT(Pid,{?MODULE,local2,[2]})			= receive_next(),
-    ?line ?CT(Pid,{?MODULE,local_tail,[2]})		= receive_next(),
-    ?line ?RF(Pid,{?MODULE,local2,1}, [2,0])		= receive_next(),
-    ?line ?RT(Pid,{?MODULE,local,1})			= receive_next(),
-    ?line ?RT(Pid,{?MODULE,exported,1})			= receive_next(),
-    ?line ?RT(Pid,{?MODULE,slave,1})			= receive_next(),
-    ?line stop = apply_slave(?MODULE, id, [stop]),
-    ?line ?CTT(Pid,{?MODULE,id,[stop]})			= receive_next(),
-    ?line ?RFT(Pid,{?MODULE,id,1}, stop)		= receive_next(),
-    ?line [3,3,3,0] = apply_slave(?MODULE,exported_wrap,[3]),
-    ?line receive_no_next(17),
-    ?line shutdown(),
+    Pid = setup(),
+    Trigger = {?MODULE,id,1},
+    TriggerMS = [{[start],[],[{silent,false}]},
+                 {[stop],[],[{silent,true},{return_trace}]}],
+    1 = erlang:trace(Pid, true, [call,silent,return_to]),
+    erlang:trace_pattern({?MODULE,'_','_'},[],[local]),
+    1 = erlang:trace_pattern({?MODULE,local2,1},
+                             [{'_',[],[{return_trace}]}],
+                             [local]),
+    1 = erlang:trace_pattern({?MODULE,slave,1},false,[local]),
+    1 = erlang:trace_pattern(Trigger,false,[local]),
+    1 = erlang:trace_pattern(Trigger,TriggerMS,[meta]),
+    [1,1,1,0] = apply_slave(?MODULE,exported_wrap,[1]),
+    receive_no_next(17),
+    start = apply_slave(?MODULE, id, [start]),
+    ?CTT(Pid,{?MODULE,id,[start]})       = receive_next(),
+    [2,2,2,0] = apply_slave(?MODULE,exported_wrap,[2]),
+    ?CT(Pid,{?MODULE,exported_wrap,[2]}) = receive_next(),
+    ?CT(Pid,{?MODULE,exported,[2]})      = receive_next(),
+    ?CT(Pid,{?MODULE,local,[2]})         = receive_next(),
+    ?CT(Pid,{?MODULE,local2,[2]})        = receive_next(),
+    ?CT(Pid,{?MODULE,local_tail,[2]})    = receive_next(),
+    ?RF(Pid,{?MODULE,local2,1}, [2,0])   = receive_next(),
+    ?RT(Pid,{?MODULE,local,1})           = receive_next(),
+    ?RT(Pid,{?MODULE,exported,1})        = receive_next(),
+    ?RT(Pid,{?MODULE,slave,1})           = receive_next(),
+    stop = apply_slave(?MODULE, id, [stop]),
+    ?CTT(Pid,{?MODULE,id,[stop]})        = receive_next(),
+    ?RFT(Pid,{?MODULE,id,1}, stop)       = receive_next(),
+    [3,3,3,0] = apply_slave(?MODULE,exported_wrap,[3]),
+    receive_no_next(17),
+    shutdown(),
     ok.
 
 %% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -645,9 +641,9 @@ slave(Sync) ->
     Sync ! sync,
     receive
 	{From,apply, M, F, A} ->
-	    ?line ?dbgformat("Apply: ~p:~p/~p (~p)~n",[M,F,length(A),A]),
-	    ?line Res = apply(M,F,A),
-	    ?line ?dbgformat("done Apply: ~p:~p/~p (~p)~n",[M,F,length(A),A]),
+	    ?dbgformat("Apply: ~p:~p/~p (~p)~n",[M,F,length(A),A]),
+	    Res = apply(M,F,A),
+	    ?dbgformat("done Apply: ~p:~p/~p (~p)~n",[M,F,length(A),A]),
 	    From ! {apply, Res},
 	    erlang:trace_pattern({?MODULE,slave,1},false,[meta]),
 	    slave(From);
diff --git a/erts/emulator/test/unique_SUITE.erl b/erts/emulator/test/unique_SUITE.erl
new file mode 100644
index 0000000000..5ad6e59272
--- /dev/null
+++ b/erts/emulator/test/unique_SUITE.erl
@@ -0,0 +1,390 @@
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 2014. All Rights Reserved.
+%% 
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%% 
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%% 
+%% %CopyrightEnd%
+%%
+
+-module(unique_SUITE).
+
+-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, 
+	 init_per_group/2,end_per_group/2,
+	 init_per_testcase/2,end_per_testcase/2]).
+-export([unique_monotonic_integer_white_box/1,
+	 unique_integer_white_box/1]).
+
+-include_lib("test_server/include/test_server.hrl").
+
+%-define(P(V), V).
+-define(P(V), print_ret_val(?FILE, ?LINE, V)).
+
+-define(PRINT(V), print_ret_val(?FILE, ?LINE, V)).
+
+
+init_per_testcase(Case, Config) ->
+    ?line Dog=test_server:timetrap(test_server:minutes(2)),
+    [{watchdog, Dog}, {testcase, Case}|Config].
+
+end_per_testcase(_, Config) ->
+    Dog=?config(watchdog, Config),
+    test_server:timetrap_cancel(Dog),
+    ok.
+
+suite() -> [{ct_hooks,[ts_install_cth]}].
+
+all() -> 
+    [unique_monotonic_integer_white_box,
+     unique_integer_white_box].
+
+groups() -> 
+    [].
+
+init_per_suite(Config) ->
+    erts_debug:set_internal_state(available_internal_state, true),
+    Config.
+
+end_per_suite(_Config) ->
+    erts_debug:set_internal_state(available_internal_state, false),
+    ok.
+
+init_per_group(_GroupName, Config) ->
+    Config.
+
+end_per_group(_GroupName, Config) ->
+    Config.
+
+%%
+%%
+%% Unique counter white box test case
+%%
+%%
+
+unique_monotonic_integer_white_box(Config) when is_list(Config) ->
+    {ok, Node} = start_node(Config),
+    TestServer = self(),
+    Success = make_ref(),
+    %% Run this in a separate node, so we don't mess up
+    %% the system when moving the strict monotonic counter
+    %% around in a non-strict monotonic way...
+    Test = spawn(Node,
+		 fun () ->
+			 unique_monotonic_integer_white_box_test(TestServer, Success)
+		 end),
+    Mon = erlang:monitor(process, Test),
+    receive
+	{'DOWN', Mon, process, Test, Error} ->
+	    ?t:fail(Error);
+	Success ->
+	    ok
+    end,
+    erlang:demonitor(Mon, [flush]),
+    stop_node(Node),
+    ok.
+
+set_unique_monotonic_integer_state(MinCounter, NextValue) ->
+    true = erts_debug:set_internal_state(unique_monotonic_integer_state,
+					 NextValue-MinCounter-1).
+    
+    
+
+unique_monotonic_integer_white_box_test(TestServer, Success) ->
+    erts_debug:set_internal_state(available_internal_state, true),
+
+    WordSize = erlang:system_info({wordsize, internal}),
+    SmallBits = WordSize*8 - 4,
+
+    MinSmall = -1*(1 bsl (SmallBits-1)),
+    MaxSmall = (1 bsl (SmallBits-1))-1,
+    %% Make sure we got small sizes correct...
+    0 = erts_debug:size(MinSmall),
+    false = 0 =:= erts_debug:size(MinSmall-1),
+    0 = erts_debug:size(MaxSmall),
+    false = 0 =:= erts_debug:size(MaxSmall+1),
+
+    ?PRINT({min_small, MinSmall}),
+    ?PRINT({max_small, MaxSmall}),
+
+    MinSint64 = -1*(1 bsl 63),
+    MaxSint64 = (1 bsl 63)-1,
+
+    ?PRINT({min_Sint64, MinSint64}),
+    ?PRINT({max_Sint64, MaxSint64}),
+
+    MinCounter = erts_debug:get_internal_state(min_unique_monotonic_integer),
+    MaxCounter = MinCounter + (1 bsl 64) - 1,
+
+    ?PRINT({min_counter, MinCounter}),
+    ?PRINT({max_counter, MaxCounter}),
+
+    case WordSize of
+	4 ->
+	    MinCounter = MinSint64;
+	8 ->
+	    MinCounter = MinSmall
+    end,
+
+    StartState = erts_debug:get_internal_state(unique_monotonic_integer_state),
+
+    %% Verify that we get expected results over all internal limits...
+
+    case MinCounter < MinSmall of
+	false ->
+	    8 = WordSize,
+	    ok;
+	true ->
+	    4 = WordSize,
+	    ?PRINT(over_min_small),
+	    set_unique_monotonic_integer_state(MinCounter, MinSmall-2),
+	    true = (?P(erlang:unique_integer([monotonic])) == MinSmall - 2),
+	    true = (?P(erlang:unique_integer([monotonic])) == MinSmall - 1),
+	    true = (?P(erlang:unique_integer([monotonic])) == MinSmall),
+	    true = (?P(erlang:unique_integer([monotonic]))  == MinSmall + 1),
+	    true = (?P(erlang:unique_integer([monotonic]))  == MinSmall + 2),
+	    garbage_collect(),
+	    ok
+    end,
+
+    ?PRINT(over_zero), %% Not really an interesting limit, but...
+    set_unique_monotonic_integer_state(MinCounter, -2),
+    true = (?P(erlang:unique_integer([monotonic])) == -2),
+    true = (?P(erlang:unique_integer([monotonic])) == -1),
+    true = (?P(erlang:unique_integer([monotonic])) == 0),
+    true = (?P(erlang:unique_integer([monotonic]))  == 1),
+    true = (?P(erlang:unique_integer([monotonic]))  == 2),
+    garbage_collect(),
+
+    ?PRINT(over_max_small),
+    set_unique_monotonic_integer_state(MinCounter, MaxSmall-2),
+    true = (?P(erlang:unique_integer([monotonic])) == MaxSmall - 2),
+    true = (?P(erlang:unique_integer([monotonic])) == MaxSmall - 1),
+    true = (?P(erlang:unique_integer([monotonic])) == MaxSmall),
+    true = (?P(erlang:unique_integer([monotonic]))  == MaxSmall + 1),
+    true = (?P(erlang:unique_integer([monotonic]))  == MaxSmall + 2),
+    garbage_collect(),
+
+    case MaxCounter > MaxSint64 of
+	false ->
+	    4 = WordSize,
+	    ok;
+	true ->
+	    8 = WordSize,
+	    ?PRINT(over_max_sint64),
+	    set_unique_monotonic_integer_state(MinCounter, MaxSint64-2),
+	    true = (?P(erlang:unique_integer([monotonic])) == MaxSint64 - 2),
+	    true = (?P(erlang:unique_integer([monotonic])) == MaxSint64 - 1),
+	    true = (?P(erlang:unique_integer([monotonic])) == MaxSint64),
+	    true = (?P(erlang:unique_integer([monotonic])) == MaxSint64 + 1),
+	    true = (?P(erlang:unique_integer([monotonic])) == MaxSint64 + 2),
+	    garbage_collect()
+    end,
+
+    ?PRINT(over_max_min_counter),
+    set_unique_monotonic_integer_state(MinCounter, if MaxCounter == MaxSint64 ->
+							   MaxCounter-2;
+						      true ->
+							   MinCounter-3
+						   end),
+    true = (?P(erlang:unique_integer([monotonic])) == MaxCounter - 2),
+    true = (?P(erlang:unique_integer([monotonic])) == MaxCounter - 1),
+    true = (?P(erlang:unique_integer([monotonic])) == MaxCounter),
+    true = (?P(erlang:unique_integer([monotonic])) == MinCounter),
+    true = (?P(erlang:unique_integer([monotonic])) == MinCounter + 1),
+    true = (?P(erlang:unique_integer([monotonic])) == MinCounter + 2),
+    garbage_collect(),
+
+    %% Restore initial state and hope we didn't mess it up for the
+    %% system...
+    true = erts_debug:set_internal_state(unique_monotonic_integer_state,
+					 StartState),
+
+    TestServer ! Success.
+
+%%
+%%
+%% Unique integer white box test case
+%%
+%%
+
+-record(uniqint_info, {min_int,
+		       max_int,
+		       max_small,
+		       schedulers,
+		       sched_bits}).
+
+unique_integer_white_box(Config) when is_list(Config) ->
+    UinqintInfo = init_uniqint_info(),
+    #uniqint_info{min_int = MinInt,
+		  max_int = MaxInt,
+		  max_small = MaxSmall} = UinqintInfo,
+    io:format("****************************************************~n", []),
+    io:format("*** Around MIN_UNIQ_INT ~p ***~n", [MinInt]),
+    io:format("****************************************************~n", []),
+    check_unique_integer_around(MinInt, UinqintInfo),
+    io:format("****************************************************~n", []),
+    io:format("*** Around 0 ***~n", []),
+    io:format("****************************************************~n", []),
+    check_unique_integer_around(0, UinqintInfo),
+    io:format("****************************************************~n", []),
+    io:format("*** Around MAX_SMALL ~p ***~n", [MaxSmall]),
+    io:format("****************************************************~n", []),
+    check_unique_integer_around(MaxSmall, UinqintInfo),
+    io:format("****************************************************~n", []),
+    io:format("*** Around 2^64+MIN_UNIQ_INT ~p ***~n", [(1 bsl 64)+MinInt]),
+    io:format("****************************************************~n", []),
+    check_unique_integer_around((1 bsl 64)+MinInt, UinqintInfo),
+    io:format("****************************************************~n", []),
+    io:format("*** Around 2^64 ~p~n", [(1 bsl 64)]),
+    io:format("****************************************************~n", []),
+    check_unique_integer_around((1 bsl 64), UinqintInfo),
+    io:format("****************************************************~n", []),
+    io:format("*** Around 2^64-MIN_UNIQ_INT ~p ***~n", [(1 bsl 64)-MinInt]),
+    io:format("****************************************************~n", []),
+    check_unique_integer_around((1 bsl 64)-MinInt, UinqintInfo),
+    io:format("****************************************************~n", []),
+    io:format("*** Around MAX_UNIQ_INT ~p ***~n", [MaxInt]),
+    io:format("****************************************************~n", []),
+    check_unique_integer_around(MaxInt, UinqintInfo),
+    ok.
+	
+
+%%% Internal unique_integer_white_box/1 test case
+
+calc_sched_bits(NoScheds, Shift) when NoScheds < 1 bsl Shift ->
+    Shift;
+calc_sched_bits(NoScheds, Shift) ->
+    calc_sched_bits(NoScheds, Shift+1).
+
+init_uniqint_info() ->
+    SmallBits = erlang:system_info({wordsize, internal})*8-4,
+    io:format("SmallBits=~p~n", [SmallBits]),
+    Schedulers = erlang:system_info(schedulers),
+    io:format("Schedulers=~p~n", [Schedulers]),
+    MinSmall = -1*(1 bsl (SmallBits-1)),
+    io:format("MinSmall=~p~n", [MinSmall]),
+    MaxSmall = (1 bsl (SmallBits-1))-1,
+    io:format("MaxSmall=~p~n", [MaxSmall]),
+    SchedBits = calc_sched_bits(Schedulers, 0),
+    io:format("SchedBits=~p~n", [SchedBits]),
+    MaxInt = ((((1 bsl 64) - 1) bsl SchedBits) bor Schedulers) + MinSmall,
+    io:format("MaxInt=~p~n", [MaxInt]),
+    #uniqint_info{min_int = MinSmall,
+		  max_int = MaxInt,
+		  max_small = MaxSmall,
+		  schedulers = Schedulers,
+		  sched_bits = SchedBits}.
+
+valid_uniqint(Int, #uniqint_info{min_int = MinInt} = UinqintInfo) when Int < MinInt ->
+    valid_uniqint(MinInt, UinqintInfo);
+valid_uniqint(Int, #uniqint_info{min_int = MinInt,
+				 sched_bits = SchedBits,
+				 schedulers = Scheds}) ->
+    Int1 = Int - MinInt,
+    {Inc, ThreadNo} = case Int1 band ((1 bsl SchedBits) - 1) of
+			  TN when TN > Scheds ->
+			      {1, Scheds};
+			  TN ->
+			      {0, TN}
+		      end,
+    Counter = ((Int1 bsr SchedBits) + Inc) rem (1 bsl 64),
+    ((Counter bsl SchedBits) bor ThreadNo) + MinInt.
+
+smaller_valid_uniqint(Int, UinqintInfo) ->
+    Cand = Int-1,
+    case valid_uniqint(Cand, UinqintInfo) of
+	RI when RI < Int ->
+	    RI;
+	_ ->
+	    smaller_valid_uniqint(Cand, UinqintInfo)
+    end.
+
+int32_to_bigendian_list(Int) ->
+    0 = Int bsr 32,
+    [(Int bsr 24) band 16#ff,
+     (Int bsr 16) band 16#ff,
+     (Int bsr 8) band 16#ff,
+     Int band 16#ff].
+
+mk_uniqint(Int, #uniqint_info {min_int = MinInt,
+			       sched_bits = SchedBits} = _UinqintInfo) ->
+    Int1 = Int - MinInt,
+    ThrId = Int1 band ((1 bsl SchedBits) - 1),
+    Value = (Int1 bsr SchedBits) band ((1 bsl 64) - 1),
+    0 = Int1 bsr (SchedBits + 64),
+    NodeName = atom_to_list(node()),
+    Make = {make_unique_integer, ThrId, Value},
+    %% erlang:display(Make),
+    Res = erts_debug:get_internal_state(Make),
+    %% erlang:display({uniq_int, Res}),
+    Res.
+
+check_uniqint(Int, UinqintInfo) ->
+    UniqInt = mk_uniqint(Int, UinqintInfo),
+    io:format("UniqInt=~p ", [UniqInt]),
+    case UniqInt =:= Int of
+	true ->
+	    io:format("OK~n~n", []);
+	false ->
+	    io:format("result UniqInt=~p FAILED~n", [UniqInt]),
+	    exit(badres)
+    end.
+
+check_unique_integer_around(Int, #uniqint_info{min_int = MinInt,
+					       max_int = MaxInt} = UinqintInfo) ->
+    {Start, End} = case {Int =< MinInt+100, Int >= MaxInt-100} of
+		       {true, false} ->
+			   {MinInt, MinInt+100};
+		       {false, false} ->
+			   {smaller_valid_uniqint(Int-100, UinqintInfo),
+			    valid_uniqint(Int+100, UinqintInfo)};
+		       {false, true} ->
+			   {MaxInt-100, MaxInt}
+		   end,
+    lists:foldl(fun (I, OldRefInt) ->
+			RefInt = valid_uniqint(I, UinqintInfo),
+			case OldRefInt =:= RefInt of
+			    true ->
+				ok;
+			    false ->
+				check_uniqint(RefInt, UinqintInfo)
+			end,
+			RefInt
+		end,
+		none,
+		lists:seq(Start, End)).
+
+
+%% helpers
+
+print_ret_val(File, Line, Value) ->    
+    io:format("~s:~p: ~p~n", [File, Line, Value]),
+    Value.
+
+start_node(Config) ->
+    start_node(Config, []).
+start_node(Config, Opts) when is_list(Config), is_list(Opts) ->
+    ?line Pa = filename:dirname(code:which(?MODULE)),
+    ?line A = erlang:monotonic_time(1) + erlang:time_offset(1),
+    ?line B = erlang:unique_integer([positive]),
+    ?line Name = list_to_atom(atom_to_list(?MODULE)
+			      ++ "-"
+			      ++ atom_to_list(?config(testcase, Config))
+			      ++ "-"
+			      ++ integer_to_list(A)
+			      ++ "-"
+			      ++ integer_to_list(B)),
+    ?line ?t:start_node(Name, slave, [{args, Opts++" -pa "++Pa}]).
+
+stop_node(Node) ->
+    ?t:stop_node(Node).
diff --git a/erts/emulator/valgrind/suppress.patched.3.6.0 b/erts/emulator/valgrind/suppress.patched.3.6.0
index b3507bdba7..16cecf2dba 100644
--- a/erts/emulator/valgrind/suppress.patched.3.6.0
+++ b/erts/emulator/valgrind/suppress.patched.3.6.0
@@ -273,6 +273,11 @@ obj:*/ssleay.*
    fun:AES_cbc_encrypt
    ...
 }
+{
+   crypto RC4 can do harmless word aligned read past end of input
+   Memcheck:Addr8
+   fun:RC4
+}
 
 {
 erts_bits_init_state; Why is this needed?
@@ -357,3 +362,15 @@ fun:async_main
 ...
 }
 
+{
+Deliberate invalid read by test case bif_SUITE:erlang_halt
+Memcheck:Addr4
+...
+fun:erts_print_scheduler_info
+...
+fun:erl_exit
+fun:broken_halt_test
+fun:erts_debug_set_internal_state_2
+fun:process_main
+}
+
diff --git a/erts/emulator/valgrind/suppress.standard b/erts/emulator/valgrind/suppress.standard
index a4da31a61d..a1f3f82364 100644
--- a/erts/emulator/valgrind/suppress.standard
+++ b/erts/emulator/valgrind/suppress.standard
@@ -260,6 +260,11 @@ obj:*/ssleay.*
    fun:AES_cbc_encrypt
    ...
 }
+{
+   crypto RC4 can do harmless word aligned read past end of input
+   Memcheck:Addr8
+   fun:RC4
+}
 
 {
 Prebuilt constant terms in os_info_init (PossiblyLost)
@@ -325,3 +330,15 @@ fun:async_main
 ...
 }
 
+{
+Deliberate invalid read by test case bif_SUITE:erlang_halt
+Memcheck:Addr4
+...
+fun:erts_print_scheduler_info
+...
+fun:erl_exit
+fun:broken_halt_test
+fun:erts_debug_set_internal_state_2
+fun:process_main
+}
+
diff --git a/erts/epmd/src/epmd.c b/erts/epmd/src/epmd.c
index 9699491526..447aae47aa 100644
--- a/erts/epmd/src/epmd.c
+++ b/erts/epmd/src/epmd.c
@@ -345,7 +345,7 @@ static void run_daemon(EpmdVars *g)
        inform it of that the log is closed. */
     closelog();
 
-    /* These chouldn't be needed but for safety... */
+    /* These shouldn't be needed but for safety... */
 
     open("/dev/null", O_RDONLY); /* Order is important! */
     open("/dev/null", O_WRONLY);
@@ -386,7 +386,7 @@ static void run_daemon(EpmdVars *g)
     close(1);
     close(2);
 
-    /* These chouldn't be needed but for safety... */
+    /* These shouldn't be needed but for safety... */
 
     open("nul", O_RDONLY);
     open("nul", O_WRONLY);
diff --git a/erts/etc/common/erlexec.c b/erts/etc/common/erlexec.c
index b68e109b43..d6544a2829 100644
--- a/erts/etc/common/erlexec.c
+++ b/erts/etc/common/erlexec.c
@@ -808,6 +808,7 @@ int main(int argc, char **argv)
 		  case 'a':
 		  case 'A':
 		  case 'b':
+		  case 'C':
 		  case 'e':
 		  case 'i':
 		  case 'n':
@@ -881,6 +882,19 @@ int main(int argc, char **argv)
 		      }
 		      add_Eargs(argv[i]);
 		      break;
+		  case 'c':
+		      argv[i][0] = '-';
+		      if (argv[i][2] == '\0' && i+1 < argc) {
+			  if (sys_strcmp(argv[i+1], "true") == 0
+			      || sys_strcmp(argv[i+1], "false") == 0) {
+			      add_Eargs(argv[i]);
+			      add_Eargs(argv[i+1]);
+			      i++;
+			      break;
+			  }
+		      }
+		      add_Eargs(argv[i]);
+		      break;
 		  case 'M': {
 		      int x;
 		      for (x = 0; plusM_au_allocs[x]; x++)
@@ -1150,15 +1164,15 @@ usage_aux(void)
 #endif
 	  "] "
 	  "[-make] [-man [manopts] MANPAGE] [-x] [-emu_args] "
-	  "[-args_file FILENAME] [+A THREADS] [+a SIZE] [+B[c|d|i]] [+c] "
-	  "[+h HEAP_SIZE_OPTION] [+K BOOLEAN] "
+	  "[-args_file FILENAME] [+A THREADS] [+a SIZE] [+B[c|d|i]] [+c [BOOLEAN]] "
+	  "[+C MODE] [+h HEAP_SIZE_OPTION] [+K BOOLEAN] "
 	  "[+l] [+M<SUBSWITCH> <ARGUMENT>] [+P MAX_PROCS] [+Q MAX_PORTS] "
 	  "[+R COMPAT_REL] "
 	  "[+r] [+rg READER_GROUPS_LIMIT] [+s SCHEDULER_OPTION] "
 	  "[+S NO_SCHEDULERS:NO_SCHEDULERS_ONLINE] "
 	  "[+SP PERCENTAGE_SCHEDULERS:PERCENTAGE_SCHEDULERS_ONLINE] "
 	  "[+T LEVEL] [+V] [+v] "
-	  "[+W<i|w>] [+z MISC_OPTION] [args ...]\n");
+	  "[+W<i|w|e>] [+z MISC_OPTION] [args ...]\n");
   exit(1);
 }
 
diff --git a/erts/etc/common/heart.c b/erts/etc/common/heart.c
index 2830641802..0d1dcacf2c 100644
--- a/erts/etc/common/heart.c
+++ b/erts/etc/common/heart.c
@@ -109,7 +109,7 @@
 #  include <sys/time.h>
 #  include <unistd.h>
 #  include <signal.h>
-#  if defined(CORRECT_USING_TIMES)
+#  if defined(OS_MONOTONIC_TIME_USING_TIMES)
 #    include <sys/times.h>
 #    include <limits.h>
 #  endif
@@ -117,11 +117,12 @@
 
 #define HEART_COMMAND_ENV          "HEART_COMMAND"
 #define ERL_CRASH_DUMP_SECONDS_ENV "ERL_CRASH_DUMP_SECONDS"
+#define HEART_KILL_SIGNAL          "HEART_KILL_SIGNAL"
 
-#define MSG_HDR_SIZE        2
-#define MSG_HDR_PLUS_OP_SIZE 3
-#define MSG_BODY_SIZE      2048
-#define MSG_TOTAL_SIZE     2050
+#define MSG_HDR_SIZE         (2)
+#define MSG_HDR_PLUS_OP_SIZE (3)
+#define MSG_BODY_SIZE        (2048)
+#define MSG_TOTAL_SIZE       (2050)
 
 unsigned char cmd[MSG_BODY_SIZE];
 
@@ -555,14 +556,22 @@ kill_old_erlang(void){
 static void 
 kill_old_erlang(void){
     pid_t pid;
-    int i;
-    int res;
+    int i, res;
+    int sig = SIGKILL;
+    char *sigenv = NULL;
+
+    sigenv = get_env(HEART_KILL_SIGNAL);
+    if (sigenv && strcmp(sigenv, "SIGABRT") == 0) {
+        print_error("kill signal SIGABRT requested");
+        sig = SIGABRT;
+    }
+
     if(heart_beat_kill_pid != 0){
 	pid = (pid_t) heart_beat_kill_pid;
-	res = kill(pid,SIGKILL);
+	res = kill(pid,sig);
 	for(i=0; i < 5 && res == 0; ++i){
 	    sleep(1);
-	    res = kill(pid,SIGKILL);
+	    res = kill(pid,sig);
 	}
 	if(errno != ESRCH){
 	    print_error("Unable to kill old process, "
@@ -1084,9 +1093,9 @@ time_t timestamp(time_t *res)
     return r;
 }
 
-#elif defined(HAVE_GETHRTIME)  || defined(GETHRTIME_WITH_CLOCK_GETTIME)
+#elif defined(OS_MONOTONIC_TIME_USING_GETHRTIME) || defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME)
 
-#if defined(GETHRTIME_WITH_CLOCK_GETTIME)
+#if defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME)
 typedef long long SysHrTime;
 
 SysHrTime sys_gethrtime(void);
@@ -1095,7 +1104,7 @@ SysHrTime sys_gethrtime(void)
 {
     struct timespec ts;
     long long result;
-    if (clock_gettime(CLOCK_MONOTONIC,&ts) != 0) {
+    if (clock_gettime(MONOTONIC_CLOCK_ID,&ts) != 0) {
 	print_error("Fatal, could not get clock_monotonic value, terminating! "
 		    "errno = %d\n", errno);
 	exit(1);
@@ -1122,7 +1131,7 @@ time_t timestamp(time_t *res)
     return r;
 }
 
-#elif defined(CORRECT_USING_TIMES)
+#elif defined(OS_MONOTONIC_TIME_USING_TIMES)
 
 #  ifdef NO_SYSCONF
 #    include <sys/param.h>
diff --git a/erts/etc/common/run_erl_common.c b/erts/etc/common/run_erl_common.c
index 20b78eb05e..ab420e3bee 100644
--- a/erts/etc/common/run_erl_common.c
+++ b/erts/etc/common/run_erl_common.c
@@ -32,6 +32,10 @@
 #include <time.h>
 #include <unistd.h>
 
+#ifdef __ANDROID__
+#  include <termios.h>
+#endif
+
 #ifdef HAVE_SYSLOG_H
 #  include <syslog.h>
 #endif
diff --git a/erts/etc/ose/run_erl.c b/erts/etc/ose/run_erl.c
index 8bc49a485e..a6499f2bf3 100644
--- a/erts/etc/ose/run_erl.c
+++ b/erts/etc/ose/run_erl.c
@@ -615,7 +615,7 @@ int run_erl(int argc,char **argv) {
        returns */
     PROCESS main_pid;
     hunt_in_block("run_erl","main",&main_pid);
-    sig = alloc(sizeof(sig),ERTS_SIGNAL_RUN_ERL_DAEMON);
+    sig = alloc(sizeof(*sig),ERTS_SIGNAL_RUN_ERL_DAEMON);
     send(&sig,main_pid);
     sig = receive(sigsel);
     pid = sender(&sig);
diff --git a/erts/etc/unix/cerl.src b/erts/etc/unix/cerl.src
index 78fefbea55..59cf29d381 100644
--- a/erts/etc/unix/cerl.src
+++ b/erts/etc/unix/cerl.src
@@ -43,6 +43,7 @@
 #   -gcov       Run emulator compiled for gcov
 #   -valgrind   Run emulator compiled for valgrind
 #   -lcnt	Run emulator compiled for lock counting
+#   -icount	Run emulator compiled for instruction counting
 #   -nox        Unset the DISPLAY variable to disable us of X Windows
 #
 # FIXME For GDB you can also set the break point using "-break FUNCTION".
@@ -180,6 +181,11 @@ while [ $# -gt 0 ]; do
 	    cargs="$cargs -frmptr"
 	    TYPE=.frmptr
 	    ;;
+	"-icount")
+	    shift
+	    cargs="$cargs -icount"
+	    TYPE=.icount
+	    ;;
 	"-dump")
 	    shift
 	    GDB=dump
@@ -375,7 +381,9 @@ elif [ "x$GDB" = "xegdb" ]; then
         # Set annotation level for gdb in emacs 22 and higher. Seems to
         # be working with level 1 for emacs 22 and level 3 for emacs 23...
 	emacs_major=`$EMACS --version | head -1 | sed 's,^[^0-9]*\([0-9]*\).*,\1,g'`
-	if [ '!' -z "$emacs_major" -a $emacs_major -gt 22 ]; then
+	if [ '!' -z "$emacs_major" -a $emacs_major -gt 23 ]; then
+	    GDBARGS="-i=mi "
+	elif [ '!' -z "$emacs_major" -a $emacs_major -gt 22 ]; then
 	    GDBARGS="--annotate=3 "
 	elif [ '!' -z "$emacs_major" -a $emacs_major -gt 21 ]; then
 	    GDBARGS="--annotate=1 "
diff --git a/erts/etc/unix/etp-commands.in b/erts/etc/unix/etp-commands.in
index 141d51824f..3ee092418e 100644
--- a/erts/etc/unix/etp-commands.in
+++ b/erts/etc/unix/etp-commands.in
@@ -146,14 +146,10 @@ define etp-1
         etp-immediate-1 ($arg0)
       else
         # (($arg0) & 0x3) == 0
-        if (($arg0) == 0x0)
+        if (($arg0) == etp_the_non_value)
           printf "<the non-value>"
         else
-          if (($arg0) == 0x4)
-            printf "<the non-value debug>"
-          else
-            etp-cp-1 ($arg0)
-          end
+          etp-cp-1 ($arg0)
         end
       end
     end
@@ -355,7 +351,32 @@ define etp-boxed-1
         etp-array-1 ((Eterm*)(($arg0)&~0x3)) ($arg1) ($arg1) \
                     1 ((((Eterm*)(($arg0)&~0x3))[0]>>6)+1) '}'
       else
-        etp-boxed-immediate-1 ($arg0)
+        if (((Eterm*)(($arg0) & ~0x3))[0] & 0x3c) == 0x3c
+	  # A map
+	  if (((Eterm*)(($arg0) & ~0x3))[0] & 0xc0) == 0x0
+	    # Flat map
+	    printf "#{Keys:"
+	    etp-1 ((flatmap_t*)(($arg0)&~0x3))->keys (($arg1)+1)
+	    printf " Values:{"
+	    etp-array-1 ((Eterm*)(($arg0)&~0x3)+3) ($arg1) ($arg1) \
+                        0 ((flatmap_t*)(($arg0)&~0x3))->size '}'
+	    printf "}"
+          else
+	    # Hashmap
+            printf "#<%x>{", (((((Eterm*)(($arg0)&~0x3))[0])>>(6+2+8))&0xffff)
+	    if (((Eterm*)(($arg0) & ~0x3))[0] & 0xc0) >= 0x80
+              # head bitmap/array
+	      etp-bitmap-array-1 ((Eterm*)(($arg0)&~0x3)+2) ($arg1) ($arg1) \
+                        0 (((((Eterm*)(($arg0)&~0x3))[0])>>(6+2+8))&0xffff) '}'
+            else
+              # node bitmap
+	      etp-bitmap-array-1 ((Eterm*)(($arg0)&~0x3)+1) ($arg1) ($arg1) \
+                        0 (((((Eterm*)(($arg0)&~0x3))[0])>>(6+2+8))&0xffff) '}'
+            end
+	  end
+        else
+          etp-boxed-immediate-1 ($arg0)
+        end
       end
     end
   end
@@ -478,6 +499,36 @@ define etp-array-1
   end
 end
 
+define etp-bitmap-array-1
+# Args: Eterm* p, int depth, int width, int pos, int bitmap, int end_char
+#
+# Reentrant
+#
+# Same as etp-array-1 with size = bitcount(bitmap)
+#
+  if ($arg4) & 1 != 0
+    if (($arg1) < $etp_max_depth) && (($arg2) < $etp_max_depth)
+      etp-1 (($arg0)[($arg3)]) (($arg1)+1)
+      if (($arg4) & (($arg4)-1)) != 0
+        printf ","
+      end
+      etp-bitmap-array-1 ($arg0) ($arg1) (($arg2)+1) (($arg3)+1) (($arg4)>>1) ($arg5)
+    else
+      printf "...%c", ($arg5)
+    end
+  else
+    if ($arg4) == 0
+      printf "%c", ($arg5)
+    else
+      etp-bitmap-array-1 $arg0 $arg1 $arg2 $arg3 (($arg4)>>1) $arg5
+
+      # WARNING: One might be tempted to optimize the bitcounting here
+      # by passing the bitmap argument as ($arg4 & ($arg4 - 1)). This is a very
+      # bad idea as arguments are passed as string substitution.
+      # The size of $arg4 would thus grow exponentially for each recursion.
+    end
+  end
+end
 
 
 #define etpa-1
@@ -1065,8 +1116,8 @@ define etp-cp-1
     set $etp_cp_mid = $etp_cp_low + ($etp_cp_high-$etp_cp_low)/2
   end
   if $etp_cp_p
-    # 12 = MI_FUNCTIONS
-    set $etp_cp_low = (Eterm**)($etp_cp_p->start + 12)
+    # 13 = MI_FUNCTIONS
+    set $etp_cp_low = (Eterm**)($etp_cp_p->start + 13)
     # 0 = MI_NUM_FUNCTIONS
     set $etp_cp_high = $etp_cp_low +$etp_cp_p->start[0]
     set $etp_cp_p = 0
@@ -3514,11 +3565,13 @@ end
 define etp-carrier-blocks
   set $etp_crr = (Carrier_t*) $arg0
   set $etp_alc = (Allctr_t*)($etp_crr->allctr.counter & ~7)
+  set $etp_crr_end = ((char*)$etp_crr + ($etp_crr->chdr & ~7) - (sizeof(void*) & ~8))
   set $etp_blk = (Block_t*) ((char*)$etp_crr + $etp_alc->mbc_header_size)
   set $etp_prev_blk = 0
   set $etp_error_cnt = 0
   set $etp_ablk_cnt = 0
   set $etp_fblk_cnt = 0
+  set $etp_aborted = 0
 
   if $argc == 2
     set $etp_be_silent = $arg1
@@ -3565,14 +3618,21 @@ define etp-carrier-blocks
     end
     set $etp_prev_blk = $etp_blk
     set $etp_blk = (Block_t*) ((char*)$etp_blk + $etp_blk_sz)
+    if $etp_blk < (Block_t*) ((char*)$etp_prev_blk + $etp_alc->min_block_size) || $etp_blk >= $etp_crr_end
+      printf "ERROR: Invalid size of block at %#lx. ABORTING\n", $etp_prev_blk
+      set $etp_aborted = 1
+      loop_break
+    end
   end
 
-  if ((char*)$etp_blk + $etp_blk_sz) != ((char*)$etp_crr + ($etp_crr->chdr & ~7))
-    printf "ERROR: Last block not at end of carrier\n"
-    set $etp_error_cnt = $etp_error_cnt + 1
+  if !$etp_aborted
+    if ((char*)$etp_blk + $etp_blk_sz) != $etp_crr_end
+      printf "ERROR: Last block not at end of carrier\n"
+      set $etp_error_cnt = $etp_error_cnt + 1
+    end
+    printf "Allocated blocks: %u\n", $etp_ablk_cnt
+    printf "Free      blocks: %u\n", $etp_fblk_cnt
   end
-  printf "Allocated blocks: %u\n", $etp_ablk_cnt
-  printf "Free      blocks: %u\n", $etp_fblk_cnt
   if $etp_error_cnt
     printf "%u ERRORs reported above\n", $etp-error-cnt
   end
diff --git a/erts/example/Makefile b/erts/example/Makefile
index 6e1a88b4da..b637bee033 100644
--- a/erts/example/Makefile
+++ b/erts/example/Makefile
@@ -30,7 +30,7 @@ CFLAGS += $(OUR_C_FLAGS)
 CXXFLAGS += $(OUR_C_FLAGS)
 
 TARGETS = pg_sync.beam pg_async.beam pg_sync.so pg_async.so \
-next_perm.so next_perm.beam
+next_perm.so next_perm.beam time_compat.beam
 
 all: $(TARGETS)
 
diff --git a/erts/example/time_compat.erl b/erts/example/time_compat.erl
new file mode 100644
index 0000000000..90b7fbcc80
--- /dev/null
+++ b/erts/example/time_compat.erl
@@ -0,0 +1,303 @@
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 2014. All Rights Reserved.
+%% 
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%% 
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%% 
+%% %CopyrightEnd%
+%%
+
+%%
+%% If your code need to be able to execute on ERTS versions both
+%% earlier and later than 7.0, the best approach is to use the new
+%% time API introduced in ERTS 7.0 and implement a fallback
+%% solution using the old primitives to be used on old ERTS
+%% versions. This way your code can automatically take advantage
+%% of the improvements in the API when available. This is an
+%% example of how to implement such an API, but it can be used
+%% as is if you want to. Just add this module to your project,
+%% and call the API via this module instead of calling the
+%% BIFs directly.
+%%
+
+-module(time_compat).
+
+%% We don't want warnings about the use of erlang:now/0 in
+%% this module.
+-compile(nowarn_deprecated_function).
+%%
+%% We don't use
+%%   -compile({nowarn_deprecated_function, [{erlang, now, 0}]}).
+%% since this will produce warnings when compiled on systems
+%% where it has not yet been deprecated.
+%%
+
+-export([monotonic_time/0,
+	 monotonic_time/1,
+	 erlang_system_time/0,
+	 erlang_system_time/1,
+	 os_system_time/0,
+	 os_system_time/1,
+	 time_offset/0,
+	 time_offset/1,
+	 convert_time_unit/3,
+	 timestamp/0,
+	 unique_integer/0,
+	 unique_integer/1,
+	 monitor/2,
+	 system_info/1,
+	 system_flag/2]).
+
+monotonic_time() ->
+    try
+	erlang:monotonic_time()
+    catch
+	error:undef ->
+	    %% Use Erlang system time as monotonic time
+	    erlang_system_time_fallback()
+    end.
+
+monotonic_time(Unit) ->
+    try
+	erlang:monotonic_time(Unit)
+    catch
+	error:badarg ->
+	    erlang:error(badarg, [Unit]);
+	error:undef ->
+	    %% Use Erlang system time as monotonic time
+	    STime = erlang_system_time_fallback(),
+	    try
+		convert_time_unit_fallback(STime, native, Unit)
+	    catch
+		error:bad_time_unit -> erlang:error(badarg, [Unit])
+	    end
+    end.
+
+erlang_system_time() ->
+    try
+	erlang:system_time()
+    catch
+	error:undef ->
+	    erlang_system_time_fallback()
+    end.
+
+erlang_system_time(Unit) ->
+    try
+	erlang:system_time(Unit)
+    catch
+	error:badarg ->
+	    erlang:error(badarg, [Unit]);
+	error:undef ->
+	    STime = erlang_system_time_fallback(),
+	    try
+		convert_time_unit_fallback(STime, native, Unit)
+	    catch
+		error:bad_time_unit -> erlang:error(badarg, [Unit])
+	    end
+    end.
+
+os_system_time() ->
+    try
+	os:system_time()
+    catch
+	error:undef ->
+	    os_system_time_fallback()
+    end.
+
+os_system_time(Unit) ->
+    try
+	os:system_time(Unit)
+    catch
+	error:badarg ->
+	    erlang:error(badarg, [Unit]);
+	error:undef ->
+	    STime = os_system_time_fallback(),
+	    try
+		convert_time_unit_fallback(STime, native, Unit)
+	    catch
+		error:bad_time_unit -> erlang:error(badarg, [Unit])
+	    end
+    end.
+
+time_offset() ->
+    try
+	erlang:time_offset()
+    catch
+	error:undef ->
+	    %% Erlang system time and Erlang monotonic
+	    %% time are always aligned
+	    0
+    end.
+
+time_offset(Unit) ->
+    try
+	erlang:time_offset(Unit)
+    catch
+	error:badarg ->
+	    erlang:error(badarg, [Unit]);
+	error:undef ->
+	    try
+		_ = integer_time_unit(Unit)
+	    catch
+		error:bad_time_unit -> erlang:error(badarg, [Unit])
+	    end,
+	    %% Erlang system time and Erlang monotonic
+	    %% time are always aligned
+	    0
+    end.
+
+convert_time_unit(Time, FromUnit, ToUnit) ->
+    try
+	erlang:convert_time_unit(Time, FromUnit, ToUnit)
+    catch
+	error:undef ->
+	    try
+		convert_time_unit_fallback(Time, FromUnit, ToUnit)
+	    catch
+		_:_ ->
+		    erlang:error(badarg, [Time, FromUnit, ToUnit])
+	    end;
+	error:Error ->
+	    erlang:error(Error, [Time, FromUnit, ToUnit])
+    end.
+
+timestamp() ->
+    try
+	erlang:timestamp()
+    catch
+	error:undef ->
+	    erlang:now()
+    end.
+
+unique_integer() ->
+    try
+	erlang:unique_integer()
+    catch
+	error:undef ->
+	    {MS, S, US} = erlang:now(),
+	    (MS*1000000+S)*1000000+US
+    end.
+
+unique_integer(Modifiers) ->
+    try
+	erlang:unique_integer(Modifiers)
+    catch
+	error:badarg ->
+	    erlang:error(badarg, [Modifiers]);
+	error:undef ->
+	    case is_valid_modifier_list(Modifiers) of
+		true ->
+		    %% now() converted to an integer
+		    %% fullfill the requirements of
+		    %% all modifiers: unique, positive,
+		    %% and monotonic...
+		    {MS, S, US} = erlang:now(),
+		    (MS*1000000+S)*1000000+US;
+		false ->
+		    erlang:error(badarg, [Modifiers])
+	    end
+    end.
+
+monitor(Type, Item) ->
+    try
+	erlang:monitor(Type, Item)
+    catch
+	error:Error ->
+	    case {Error, Type, Item} of
+		{badarg, time_offset, clock_service} ->
+		    %% Time offset is final and will never change.
+		    %% Return a dummy reference, there will never
+		    %% be any need for 'CHANGE' messages...
+		    make_ref();
+		_ ->
+		    erlang:error(Error, [Type, Item])
+	    end
+    end.
+
+system_info(Item) ->
+    try
+	erlang:system_info(Item)
+    catch
+	error:badarg ->
+	    case Item of
+		time_correction ->
+		    case erlang:system_info(tolerant_timeofday) of
+			enabled -> true;
+			disabled -> false
+		    end;
+		time_warp_mode ->
+		    no_time_warp;
+		time_offset ->
+		    final;
+		NotSupArg when NotSupArg == os_monotonic_time_source;
+			       NotSupArg == os_system_time_source;
+			       NotSupArg == start_time ->
+		    %% Cannot emulate this...
+		    erlang:error(notsup, [NotSupArg]);
+		_ ->
+		    erlang:error(badarg, [Item])
+	    end;
+	error:Error ->
+	    erlang:error(Error, [Item])
+    end.
+
+system_flag(Flag, Value) ->
+    try
+	erlang:system_flag(Flag, Value)
+    catch
+	error:Error ->
+	    case {Error, Flag, Value} of
+		{badarg, time_offset, finalize} ->
+		    %% Time offset is final
+		    final;
+		_ ->
+		    erlang:error(Error, [Flag, Value])
+	    end
+    end.
+
+%%
+%% Internal functions
+%%
+
+integer_time_unit(native) -> 1000*1000;
+integer_time_unit(nano_seconds) -> 1000*1000*1000;
+integer_time_unit(micro_seconds) -> 1000*1000;
+integer_time_unit(milli_seconds) -> 1000;
+integer_time_unit(seconds) -> 1;
+integer_time_unit(I) when is_integer(I), I > 0 -> I;
+integer_time_unit(BadRes) -> erlang:error(bad_time_unit, [BadRes]).
+
+erlang_system_time_fallback() ->
+    {MS, S, US} = erlang:now(),
+    (MS*1000000+S)*1000000+US.
+
+os_system_time_fallback() ->
+    {MS, S, US} = os:timestamp(),
+    (MS*1000000+S)*1000000+US.
+
+convert_time_unit_fallback(Time, FromUnit, ToUnit) ->
+    FU = integer_time_unit(FromUnit),
+    TU = integer_time_unit(ToUnit),
+    case Time < 0 of
+	true -> TU*Time - (FU - 1);
+	false -> TU*Time
+    end div FU.
+
+is_valid_modifier_list([positive|Ms]) ->
+    is_valid_modifier_list(Ms);
+is_valid_modifier_list([monotonic|Ms]) ->
+    is_valid_modifier_list(Ms);
+is_valid_modifier_list([]) ->
+    true;
+is_valid_modifier_list(_) ->
+    false.
diff --git a/erts/include/internal/ethr_internal.h b/erts/include/internal/ethr_internal.h
index c9b1db5b46..65195145af 100644
--- a/erts/include/internal/ethr_internal.h
+++ b/erts/include/internal/ethr_internal.h
@@ -57,6 +57,33 @@ ETHR_PROTO_NORETURN__ ethr_abort__(void);
 int ethr_win_get_errno__(void);
 #endif
 
+#ifdef ETHR_INCLUDE_MONOTONIC_CLOCK__
+#undef ETHR_HAVE_ETHR_GET_MONOTONIC_TIME
+#if defined(ETHR_HAVE_CLOCK_GETTIME_MONOTONIC)		\
+    || defined(ETHR_HAVE_MACH_CLOCK_GET_TIME)		\
+    || defined(ETHR_HAVE_GETHRTIME)
+#ifdef ETHR_TIME_WITH_SYS_TIME
+#  include <time.h>
+#  include <sys/time.h>
+#else
+#  ifdef ETHR_HAVE_SYS_TIME_H
+#    include <sys/time.h>
+#  else
+#    include <time.h>
+#  endif
+#endif
+#ifdef ETHR_HAVE_MACH_CLOCK_GET_TIME
+#include <mach/clock.h>
+#include <mach/mach.h>
+#endif
+#define ETHR_HAVE_ETHR_GET_MONOTONIC_TIME
+ethr_sint64_t ethr_get_monotonic_time(void);
+int ethr_get_monotonic_time_is_broken(void);
+#endif
+#endif /* ETHR_INCLUDE_MONOTONIC_CLOCK__ */
+
+void ethr_init_event__(void);
+
 /* implemented in lib_src/common/ethread_aux.c */
 int ethr_init_common__(ethr_init_data *id);
 int ethr_late_init_common__(ethr_late_init_data *lid);
diff --git a/erts/include/internal/ethread.h b/erts/include/internal/ethread.h
index ad5d05704c..e598017ada 100644
--- a/erts/include/internal/ethread.h
+++ b/erts/include/internal/ethread.h
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2004-2013. All Rights Reserved.
+ * Copyright Ericsson AB 2004-2015. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -214,8 +214,6 @@ typedef OSPPDKEY ethr_tsd_key;
 /* Out own RW mutexes are probably faster, but use OSEs mutexes */
 #define ETHR_USE_OWN_RWMTX_IMPL__
 
-#define ETHR_HAVE_THREAD_NAMES
-
 #else /* No supported thread lib found */
 
 #ifdef ETHR_NO_SUPP_THR_LIB_NOT_FATAL
@@ -364,6 +362,9 @@ extern ethr_runtime_t ethr_runtime__;
 #          include "sparc64/ethread.h"
 #        endif
 #      endif
+#      if ETHR_HAVE_GCC___ATOMIC_BUILTINS
+#        include "gcc/ethread.h"
+#      endif
 #      include "libatomic_ops/ethread.h"
 #      include "gcc/ethread.h"
 #    endif
@@ -501,21 +502,18 @@ typedef struct {
 typedef struct {
     int detached;			/* boolean (default false) */
     int suggested_stack_size;		/* kilo words (default sys dependent) */
+    char *name;                         /* max 14 char long (default no-name) */
 #ifdef ETHR_OSE_THREADS
-    char *name;
     U32 coreNo;
 #endif
 } ethr_thr_opts;
 
 #if defined(ETHR_OSE_THREADS)
-/* Default ethr name is big as we want to be able to sprint stuff in there */
-#define ETHR_THR_OPTS_DEFAULT_INITER \
-   {0, -1, "ethread", 0}
+#define ETHR_THR_OPTS_DEFAULT_INITER {0, -1, NULL, 0}
 #else
-#define ETHR_THR_OPTS_DEFAULT_INITER {0, -1}
+#define ETHR_THR_OPTS_DEFAULT_INITER {0, -1, NULL}
 #endif
 
-
 #if !defined(ETHR_TRY_INLINE_FUNCS) || defined(ETHR_AUX_IMPL__)
 #  define ETHR_NEED_SPINLOCK_PROTOTYPES__
 #  define ETHR_NEED_RWSPINLOCK_PROTOTYPES__
@@ -529,6 +527,8 @@ int ethr_thr_join(ethr_tid, void **);
 int ethr_thr_detach(ethr_tid);
 void ethr_thr_exit(void *);
 ethr_tid ethr_self(void);
+int ethr_getname(ethr_tid, char *, size_t);
+void ethr_setname(char *);
 int ethr_equal_tids(ethr_tid, ethr_tid);
 
 int ethr_tsd_key_create(ethr_tsd_key *,char *);
@@ -540,6 +540,7 @@ void *ethr_tsd_get(ethr_tsd_key);
 #include <signal.h>
 int ethr_sigmask(int how, const sigset_t *set, sigset_t *oset);
 int ethr_sigwait(const sigset_t *set, int *sig);
+int ethr_kill(const ethr_tid tid, const int sig);
 #endif
 
 void ethr_compiler_barrier(void);
diff --git a/erts/include/internal/ethread_header_config.h.in b/erts/include/internal/ethread_header_config.h.in
index b36322490a..a9727568a2 100644
--- a/erts/include/internal/ethread_header_config.h.in
+++ b/erts/include/internal/ethread_header_config.h.in
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2004-2011. All Rights Reserved.
+ * Copyright Ericsson AB 2004-2015. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -84,32 +84,62 @@
 /* Define if run in Sparc RMO, PSO, or TSO mode */
 #undef ETHR_SPARC_RMO
 
-/* Define if you have __sync_add_and_fetch() for 32-bit integers */
-#undef ETHR_HAVE___SYNC_ADD_AND_FETCH32
+/* Define as a boolean indicating whether you have a gcc compatible compiler
+   capable of generating the ARM DMB instruction, and are compiling for an ARM
+   processor with ARM DMB instruction support, or not */
+#undef ETHR_HAVE_GCC_ASM_ARM_DMB_INSTRUCTION
 
-/* Define if you have __sync_add_and_fetch() for 64-bit integers */
-#undef ETHR_HAVE___SYNC_ADD_AND_FETCH64
+/* Define as a bitmask corresponding to the word sizes that
+   __sync_synchronize() can handle on your system */
+#undef ETHR_HAVE___sync_synchronize
 
-/* Define if you have __sync_fetch_and_and() for 32-bit integers */
-#undef ETHR_HAVE___SYNC_FETCH_AND_AND32
+/* Define as a bitmask corresponding to the word sizes that
+   __sync_add_and_fetch() can handle on your system */
+#undef ETHR_HAVE___sync_add_and_fetch
 
-/* Define if you have __sync_fetch_and_and() for 64-bit integers */
-#undef ETHR_HAVE___SYNC_FETCH_AND_AND64
+/* Define as a bitmask corresponding to the word sizes that
+   __sync_fetch_and_and() can handle on your system */
+#undef ETHR_HAVE___sync_fetch_and_and
 
-/* Define if you have __sync_fetch_and_or() for 32-bit integers */
-#undef ETHR_HAVE___SYNC_FETCH_AND_OR32
+/* Define as a bitmask corresponding to the word sizes that
+   __sync_fetch_and_or() can handle on your system */
+#undef ETHR_HAVE___sync_fetch_and_or
 
-/* Define if you have __sync_fetch_and_or() for 64-bit integers */
-#undef ETHR_HAVE___SYNC_FETCH_AND_OR64
+/* Define as a bitmask corresponding to the word sizes that
+   __sync_val_compare_and_swap() can handle on your system */
+#undef ETHR_HAVE___sync_val_compare_and_swap
 
-/* Define if you have __sync_val_compare_and_swap() for 32-bit integers */
-#undef ETHR_HAVE___SYNC_VAL_COMPARE_AND_SWAP32
+/* Define as a boolean indicating whether you have a gcc __atomic builtins or
+   not */
+#undef ETHR_HAVE_GCC___ATOMIC_BUILTINS
 
-/* Define if you have __sync_val_compare_and_swap() for 64-bit integers */
-#undef ETHR_HAVE___SYNC_VAL_COMPARE_AND_SWAP64
+/* Define as a boolean indicating whether you trust gcc's __atomic_* builtins
+   memory barrier implementations, or not */
+#undef ETHR_TRUST_GCC_ATOMIC_BUILTINS_MEMORY_BARRIERS
 
-/* Define if you have __sync_val_compare_and_swap() for 128-bit integers */
-#undef ETHR_HAVE___SYNC_VAL_COMPARE_AND_SWAP128
+/* Define as a bitmask corresponding to the word sizes that __atomic_store_n()
+   can handle on your system */
+#undef ETHR_HAVE___atomic_store_n
+
+/* Define as a bitmask corresponding to the word sizes that __atomic_load_n()
+   can handle on your system */
+#undef ETHR_HAVE___atomic_load_n
+
+/* Define as a bitmask corresponding to the word sizes that
+   __atomic_add_fetch() can handle on your system */
+#undef ETHR_HAVE___atomic_add_fetch
+
+/* Define as a bitmask corresponding to the word sizes that
+   __atomic_fetch_and() can handle on your system */
+#undef ETHR_HAVE___atomic_fetch_and
+
+/* Define as a bitmask corresponding to the word sizes that
+   __atomic_fetch_or() can handle on your system */
+#undef ETHR_HAVE___atomic_fetch_or
+
+/* Define as a bitmask corresponding to the word sizes that
+   __atomic_compare_exchange_n() can handle on your system */
+#undef ETHR_HAVE___atomic_compare_exchange_n
 
 /* Define if you prefer gcc native ethread implementations */
 #undef ETHR_PREFER_GCC_NATIVE_IMPLS
@@ -237,3 +267,18 @@
 
 /* Assumed cache-line size (in bytes) */
 #undef ASSUMED_CACHE_LINE_SIZE
+
+/* Define if you have a clock_gettime() with a monotonic clock */
+#undef ETHR_HAVE_CLOCK_GETTIME_MONOTONIC
+
+/* Define if you have a monotonic gethrtime() */
+#undef ETHR_HAVE_GETHRTIME
+
+/* Define if you have a mach clock_get_time() with a monotonic clock */
+#undef ETHR_HAVE_MACH_CLOCK_GET_TIME
+
+/* Define to the monotonic clock id to use */
+#undef ETHR_MONOTONIC_CLOCK_ID
+
+/* Define if pthread_cond_timedwait() can be used with a monotonic clock */
+#undef ETHR_HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC
diff --git a/erts/include/internal/ethread_inline.h b/erts/include/internal/ethread_inline.h
index ffb756c84f..c09a67619a 100644
--- a/erts/include/internal/ethread_inline.h
+++ b/erts/include/internal/ethread_inline.h
@@ -20,6 +20,29 @@
 #ifndef ETHREAD_INLINE_H__
 #define ETHREAD_INLINE_H__
 
+#define ETHR_GCC_COMPILER_FALSE 0 /* Not a gcc compatible compiler */
+#define ETHR_GCC_COMPILER_TRUE 1 /* The GNU gcc compiler */
+/* Negative integers for gcc compatible compilers */
+#define ETHR_GCC_COMPILER_CLANG -1 /* The Clang gcc compatible compiler */
+#define ETHR_GCC_COMPILER_ICC -2 /* The Intel gcc compatible compiler */
+/* Line them up... */
+
+/*
+ * Unfortunately there is no easy and certain way of
+ * detecting a true gcc compiler, since the compatible
+ * ones all define the same defines as the true gnu-gcc...
+ */
+#if !defined(__GNUC__) && !defined(__GNUG__) 
+#  define ETHR_GCC_COMPILER ETHR_GCC_COMPILER_FALSE
+#elif defined(__clang__)
+#  define ETHR_GCC_COMPILER ETHR_GCC_COMPILER_CLANG
+#elif defined(__ICC) || defined(__INTEL_COMPILER)
+#  define ETHR_GCC_COMPILER ETHR_GCC_COMPILER_ICC
+#else
+/* Seems to be the true gnu-gcc... */
+#  define ETHR_GCC_COMPILER ETHR_GCC_COMPILER_TRUE
+#endif
+
 #if !defined(__GNUC__)
 #  define ETHR_AT_LEAST_GCC_VSN__(MAJ, MIN, PL) 0
 #elif !defined(__GNUC_MINOR__)
diff --git a/erts/include/internal/gcc/ethr_atomic.h b/erts/include/internal/gcc/ethr_atomic.h
index f598f8537b..62eed78f76 100644
--- a/erts/include/internal/gcc/ethr_atomic.h
+++ b/erts/include/internal/gcc/ethr_atomic.h
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2010-2011. All Rights Reserved.
+ * Copyright Ericsson AB 2010-2015. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -18,78 +18,81 @@
  */
 
 /*
- * Description: Native atomics ethread support using gcc's builtins
+ * Description: Native atomics ethread support using gcc's __atomic
+ *              and __sync builtins
  * Author: Rickard Green
+ *
+ * Note: The C11 memory model implemented by gcc's __atomic
+ *       builtins does not match the ethread API very well.
+ *
+ *       Due to this we cannot use the __ATOMIC_SEQ_CST
+ *       memory model. For more information see the comment
+ *       in the begining of ethr_membar.h in this directory.
  */
 
 #undef ETHR_INCLUDE_ATOMIC_IMPL__
-#if !defined(ETHR_GCC_ATOMIC32_H__) && defined(ETHR_ATOMIC_WANT_32BIT_IMPL__)
-#define ETHR_GCC_ATOMIC32_H__
-#if defined(ETHR_HAVE___SYNC_VAL_COMPARE_AND_SWAP32)
-#  define ETHR_INCLUDE_ATOMIC_IMPL__ 4
-#endif
+#if !defined(ETHR_GCC_ATOMIC_ATOMIC32_H__)		\
+    && defined(ETHR_ATOMIC_WANT_32BIT_IMPL__)		\
+    && ((ETHR_HAVE___sync_val_compare_and_swap & 4)	\
+	|| (ETHR_HAVE___atomic_compare_exchange_n & 4))
+
+#define ETHR_GCC_ATOMIC_ATOMIC32_H__
+#define ETHR_INCLUDE_ATOMIC_IMPL__ 4
 #undef ETHR_ATOMIC_WANT_32BIT_IMPL__
-#elif !defined(ETHR_GCC_ATOMIC64_H__) && defined(ETHR_ATOMIC_WANT_64BIT_IMPL__)
-#define ETHR_GCC_ATOMIC64_H__
-#if defined(ETHR_HAVE___SYNC_VAL_COMPARE_AND_SWAP64)
-#  define ETHR_INCLUDE_ATOMIC_IMPL__ 8
-#endif
-#undef ETHR_ATOMIC_WANT_64BIT_IMPL__
-#endif
 
-#ifdef ETHR_INCLUDE_ATOMIC_IMPL__
+#elif !defined(ETHR_GCC_ATOMIC64_H__)			\
+    && defined(ETHR_ATOMIC_WANT_64BIT_IMPL__)		\
+    && ((ETHR_HAVE___sync_val_compare_and_swap & 8)	\
+	|| (ETHR_HAVE___atomic_compare_exchange_n & 8))
 
-#ifndef ETHR_GCC_ATOMIC_COMMON__
-#define ETHR_GCC_ATOMIC_COMMON__
+#define ETHR_GCC_ATOMIC64_H__
+#define ETHR_INCLUDE_ATOMIC_IMPL__ 8
+#undef ETHR_ATOMIC_WANT_64BIT_IMPL__
 
-#define ETHR_READ_AND_SET_WITHOUT_SYNC_OP__ 0
-#if defined(__i386__) || defined(__x86_64__) || defined(__sparc__) \
-    || defined(__powerpc__) || defined(__ppc__) || defined(__mips__)
-#  undef ETHR_READ_AND_SET_WITHOUT_SYNC_OP__
-#  define ETHR_READ_AND_SET_WITHOUT_SYNC_OP__ 1
 #endif
 
-#endif /* ETHR_GCC_ATOMIC_COMMON__ */
+#ifdef ETHR_INCLUDE_ATOMIC_IMPL__
 
 #if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
 #define ETHR_HAVE_NATIVE_ATOMIC32 1
-#define ETHR_NATIVE_ATOMIC32_IMPL "gcc"
 #define ETHR_NATMC_FUNC__(X) ethr_native_atomic32_ ## X
 #define ETHR_ATMC_T__ ethr_native_atomic32_t
 #define ETHR_AINT_T__ ethr_sint32_t
-#if defined(ETHR_HAVE___SYNC_ADD_AND_FETCH32)
-#  define ETHR_HAVE___SYNC_ADD_AND_FETCH
-#endif
-#if defined(ETHR_HAVE___SYNC_FETCH_AND_AND32)
-#  define ETHR_HAVE___SYNC_FETCH_AND_AND
-#endif 
-#if defined(ETHR_HAVE___SYNC_FETCH_AND_OR32)
-#  define ETHR_HAVE___SYNC_FETCH_AND_OR
+#if ((ETHR_HAVE___sync_val_compare_and_swap & 4) \
+     && (ETHR_HAVE___atomic_compare_exchange_n & 4))
+#  define ETHR_NATIVE_ATOMIC32_IMPL "gcc_atomic_and_sync_builtins"
+#elif (ETHR_HAVE___atomic_compare_exchange_n & 4)
+#  define ETHR_NATIVE_ATOMIC32_IMPL "gcc_atomic_builtins"
+#elif (ETHR_HAVE___sync_val_compare_and_swap & 4)
+#  define ETHR_NATIVE_ATOMIC32_IMPL "gcc_sync_builtins"
+#else
+#  error "!?"
 #endif
 #elif ETHR_INCLUDE_ATOMIC_IMPL__ == 8
 #define ETHR_HAVE_NATIVE_ATOMIC64 1
-#define ETHR_NATIVE_ATOMIC64_IMPL "gcc"
 #define ETHR_NATMC_FUNC__(X) ethr_native_atomic64_ ## X
 #define ETHR_ATMC_T__ ethr_native_atomic64_t
 #define ETHR_AINT_T__ ethr_sint64_t
-#if defined(ETHR_HAVE___SYNC_ADD_AND_FETCH64)
-#  define ETHR_HAVE___SYNC_ADD_AND_FETCH
-#endif
-#if defined(ETHR_HAVE___SYNC_FETCH_AND_AND64)
-#  define ETHR_HAVE___SYNC_FETCH_AND_AND
-#endif 
-#if defined(ETHR_HAVE___SYNC_FETCH_AND_OR64)
-#  define ETHR_HAVE___SYNC_FETCH_AND_OR
+#if ((ETHR_HAVE___sync_val_compare_and_swap & 8) \
+     && (ETHR_HAVE___atomic_compare_exchange_n & 8))
+#  define ETHR_NATIVE_ATOMIC64_IMPL "gcc_atomic_and_sync_builtins"
+#elif (ETHR_HAVE___atomic_compare_exchange_n & 8)
+#  define ETHR_NATIVE_ATOMIC64_IMPL "gcc_atomic_builtins"
+#elif (ETHR_HAVE___sync_val_compare_and_swap & 8)
+#  define ETHR_NATIVE_ATOMIC64_IMPL "gcc_sync_builtins"
+#else
+#  error "!?"
 #endif
 #else
 #error "Unsupported integer size"
 #endif
 
+#undef ETHR_NATIVE_ATOMIC_IMPL__
+
 typedef struct {
-    volatile ETHR_AINT_T__ counter;
+    volatile ETHR_AINT_T__ value;
 } ETHR_ATMC_T__;
 
-
 #if defined(ETHR_TRY_INLINE_FUNCS) || defined(ETHR_ATOMIC_IMPL__)
 
 #if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
@@ -98,13 +101,19 @@ typedef struct {
 #  define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_ADDR 1
 #endif
 
+
 static ETHR_INLINE ETHR_AINT_T__ *
 ETHR_NATMC_FUNC__(addr)(ETHR_ATMC_T__ *var)
 {
-    return (ETHR_AINT_T__ *) &var->counter;
+    return (ETHR_AINT_T__ *) &var->value;
 }
 
-#if ETHR_READ_AND_SET_WITHOUT_SYNC_OP__
+/*
+ * set()
+ */
+#if (ETHR_HAVE___atomic_store_n & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if (ETHR_GCC_RELAXED_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__)
 
 #if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
 #  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_SET 1
@@ -115,12 +124,109 @@ ETHR_NATMC_FUNC__(addr)(ETHR_ATMC_T__ *var)
 static ETHR_INLINE void
 ETHR_NATMC_FUNC__(set)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ value)
 {
-    var->counter = value;
+    __atomic_store_n(&var->value, value, __ATOMIC_RELAXED);
 }
 
-#endif /* ETHR_READ_AND_SET_WITHOUT_SYNC_OP__ */
+#endif /* ETHR_GCC_RELAXED_VERSIONS__ */
 
-#if ETHR_READ_AND_SET_WITHOUT_SYNC_OP__
+#if (ETHR_GCC_RELB_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_SET_RELB 1
+#else
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_SET_RELB 1
+#endif
+
+static ETHR_INLINE void
+ETHR_NATMC_FUNC__(set_relb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ value)
+{
+    __atomic_store_n(&var->value, value, __ATOMIC_RELEASE);
+}
+
+#endif /* ETHR_GCC_RELB_VERSIONS__ */
+
+#elif (ETHR_GCC_VOLATILE_STORE_IS_ATOMIC_STORE__ & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if (ETHR_GCC_RELAXED_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_SET 1
+#else
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_SET 1
+#endif
+
+static ETHR_INLINE void
+ETHR_NATMC_FUNC__(set)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ value)
+{
+    var->value = value;
+}
+
+#endif /* ETHR_GCC_RELAXED_VERSIONS__ */
+
+#if (ETHR_GCC_VOLATILE_STORE_IS_ATOMIC_STORE_RELB__ & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if (ETHR_GCC_RELB_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_SET_RELB 1
+#else
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_SET_RELB 1
+#endif
+
+static ETHR_INLINE void
+ETHR_NATMC_FUNC__(set_relb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ value)
+{
+    var->value = value;
+}
+
+#endif /* ETHR_GCC_RELB_VERSIONS__ */
+
+#endif /* ETHR_GCC_VOLATILE_STORE_IS_ATOMIC_STORE_RELB__ */
+
+#endif /* ETHR_GCC_VOLATILE_STORE_IS_ATOMIC_STORE__ */
+
+/*
+ * read()
+ */
+
+#if (ETHR_HAVE___atomic_load_n & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if (ETHR_GCC_RELAXED_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_READ 1
+#else
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_READ 1
+#endif
+
+static ETHR_INLINE ETHR_AINT_T__
+ETHR_NATMC_FUNC__(read)(ETHR_ATMC_T__ *var)
+{
+    return __atomic_load_n(&var->value, __ATOMIC_RELAXED);
+}
+
+#endif /* ETHR_GCC_RELAXED_VERSIONS__ */
+
+#if ((ETHR_GCC_ACQB_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__) \
+     & ~ETHR___atomic_load_ACQUIRE_barrier_bug)
+
+#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_READ_ACQB 1
+#else
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_READ_ACQB 1
+#endif
+
+static ETHR_INLINE ETHR_AINT_T__
+ETHR_NATMC_FUNC__(read_acqb)(ETHR_ATMC_T__ *var)
+{
+    return __atomic_load_n(&var->value, __ATOMIC_ACQUIRE);
+}
+
+#endif /* ETHR_GCC_ACQB_VERSIONS__ */
+
+#elif (ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD__ & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if (ETHR_GCC_RELAXED_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__)
 
 #if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
 #  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_READ 1
@@ -131,12 +237,90 @@ ETHR_NATMC_FUNC__(set)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ value)
 static ETHR_INLINE ETHR_AINT_T__
 ETHR_NATMC_FUNC__(read)(ETHR_ATMC_T__ *var)
 {
-    return var->counter;
+    return var->value;
+}
+
+#endif /* ETHR_GCC_RELAXED_VERSIONS__ */
+
+#if (ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD_ACQB__ & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if (ETHR_GCC_ACQB_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_READ_ACQB 1
+#else
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_READ_ACQB 1
+#endif
+
+static ETHR_INLINE ETHR_AINT_T__
+ETHR_NATMC_FUNC__(read_acqb)(ETHR_ATMC_T__ *var)
+{
+    return var->value;
+}
+
+#endif /* ETHR_GCC_ACQB_VERSIONS__ */
+
+#endif /* ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD_ACQB__ */
+
+#endif /* ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD__ */
+
+/*
+ * add_return()
+ */
+#if (ETHR_HAVE___atomic_add_fetch & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if (ETHR_GCC_RELAXED_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_ADD_RETURN 1
+#else
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_ADD_RETURN 1
+#endif
+
+static ETHR_INLINE ETHR_AINT_T__
+ETHR_NATMC_FUNC__(add_return)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ incr)
+{
+    return __atomic_add_fetch(&var->value, incr, __ATOMIC_RELAXED);
 }
 
-#endif /* ETHR_READ_AND_SET_WITHOUT_SYNC_OP__ */
+#endif /* ETHR_GCC_RELAXED_MOD_VERSIONS__ */
 
-#if defined(ETHR_HAVE___SYNC_ADD_AND_FETCH)
+#if (ETHR_GCC_ACQB_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_ADD_RETURN_ACQB 1
+#else
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_ADD_RETURN_ACQB 1
+#endif
+
+static ETHR_INLINE ETHR_AINT_T__
+ETHR_NATMC_FUNC__(add_return_acqb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ incr)
+{
+    return __atomic_add_fetch(&var->value, incr, __ATOMIC_ACQUIRE);
+}
+
+#endif /* ETHR_GCC_ACQB_MOD_VERSIONS__ */
+
+#if (ETHR_GCC_RELB_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_ADD_RETURN_RELB 1
+#else
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_ADD_RETURN_RELB 1
+#endif
+
+static ETHR_INLINE ETHR_AINT_T__
+ETHR_NATMC_FUNC__(add_return_relb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ incr)
+{
+    return __atomic_add_fetch(&var->value, incr, __ATOMIC_RELEASE);
+}
+
+#endif /* ETHR_GCC_RELB_MOD_VERSIONS__ */
+
+#endif /* ETHR_HAVE___atomic_add_fetch */
+
+#if ((ETHR_HAVE___sync_add_and_fetch & ETHR_INCLUDE_ATOMIC_IMPL__) \
+     & ETHR_GCC_MB_MOD_VERSIONS__)
 
 #if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
 #  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_ADD_RETURN_MB 1
@@ -147,12 +331,68 @@ ETHR_NATMC_FUNC__(read)(ETHR_ATMC_T__ *var)
 static ETHR_INLINE ETHR_AINT_T__
 ETHR_NATMC_FUNC__(add_return_mb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ incr)
 {
-    return __sync_add_and_fetch(&var->counter, incr);
+    return __sync_add_and_fetch(&var->value, incr);
+}
+
+#endif /* ETHR_HAVE___sync_add_and_fetch */
+
+/*
+ * and_retold()
+ */
+#if (ETHR_HAVE___atomic_fetch_and & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if (ETHR_GCC_RELAXED_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_AND_RETOLD 1
+#else
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_AND_RETOLD 1
+#endif
+
+static ETHR_INLINE ETHR_AINT_T__
+ETHR_NATMC_FUNC__(and_retold)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask)
+{
+    return __atomic_fetch_and(&var->value, mask, __ATOMIC_RELAXED);
+}
+
+#endif /* ETHR_GCC_RELAXED_MOD_VERSIONS__ */
+
+#if (ETHR_GCC_ACQB_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_AND_RETOLD_ACQB 1
+#else
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_AND_RETOLD_ACQB 1
+#endif
+
+static ETHR_INLINE ETHR_AINT_T__
+ETHR_NATMC_FUNC__(and_retold_acqb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask)
+{
+    return __atomic_fetch_and(&var->value, mask, __ATOMIC_ACQUIRE);
 }
 
+#endif /* ETHR_GCC_ACQB_MOD_VERSIONS__ */
+
+#if (ETHR_GCC_RELB_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_AND_RETOLD_RELB 1
+#else
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_AND_RETOLD_RELB 1
 #endif
 
-#if defined(ETHR_HAVE___SYNC_FETCH_AND_AND)
+static ETHR_INLINE ETHR_AINT_T__
+ETHR_NATMC_FUNC__(and_retold_relb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask)
+{
+    return __atomic_fetch_and(&var->value, mask, __ATOMIC_RELEASE);
+}
+
+#endif /* ETHR_GCC_RELB_MOD_VERSIONS__ */
+
+#endif /* ETHR_HAVE___atomic_fetch_and */
+
+#if ((ETHR_HAVE___sync_fetch_and_and & ETHR_INCLUDE_ATOMIC_IMPL__) \
+     & ETHR_GCC_MB_MOD_VERSIONS__)
 
 #if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
 #  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_AND_RETOLD_MB 1
@@ -163,12 +403,68 @@ ETHR_NATMC_FUNC__(add_return_mb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ incr)
 static ETHR_INLINE ETHR_AINT_T__
 ETHR_NATMC_FUNC__(and_retold_mb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask)
 {
-    return __sync_fetch_and_and(&var->counter, mask);
+    return __sync_fetch_and_and(&var->value, mask);
+}
+
+#endif /* ETHR_HAVE___sync_fetch_and_and */
+
+/*
+ * or_retold()
+ */
+#if (ETHR_HAVE___atomic_fetch_or & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if (ETHR_GCC_RELAXED_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_OR_RETOLD 1
+#else
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_OR_RETOLD 1
+#endif
+
+static ETHR_INLINE ETHR_AINT_T__
+ETHR_NATMC_FUNC__(or_retold)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask)
+{
+    return __atomic_fetch_or(&var->value, mask, __ATOMIC_RELAXED);
+}
+
+#endif /* ETHR_GCC_RELAXED_MOD_VERSIONS__ */
+
+#if (ETHR_GCC_ACQB_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_OR_RETOLD_ACQB 1
+#else
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_OR_RETOLD_ACQB 1
+#endif
+
+static ETHR_INLINE ETHR_AINT_T__
+ETHR_NATMC_FUNC__(or_retold_acqb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask)
+{
+    return __atomic_fetch_or(&var->value, mask, __ATOMIC_ACQUIRE);
 }
 
+#endif /* ETHR_GCC_ACQB_MOD_VERSIONS__ */
+
+#if (ETHR_GCC_RELB_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_OR_RETOLD_RELB 1
+#else
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_OR_RETOLD_RELB 1
 #endif
 
-#if defined(ETHR_HAVE___SYNC_FETCH_AND_OR)
+static ETHR_INLINE ETHR_AINT_T__
+ETHR_NATMC_FUNC__(or_retold_relb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask)
+{
+    return __atomic_fetch_or(&var->value, mask, __ATOMIC_RELEASE);
+}
+
+#endif /* ETHR_GCC_RELB_MOD_VERSIONS__ */
+
+#endif /* ETHR_HAVE___atomic_fetch_or */
+
+#if ((ETHR_HAVE___sync_fetch_and_or & ETHR_INCLUDE_ATOMIC_IMPL__) \
+     & ETHR_GCC_MB_MOD_VERSIONS__)
 
 #if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
 #  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_OR_RETOLD_MB 1
@@ -179,11 +475,73 @@ ETHR_NATMC_FUNC__(and_retold_mb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask)
 static ETHR_INLINE ETHR_AINT_T__
 ETHR_NATMC_FUNC__(or_retold_mb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask)
 {
-    return (ETHR_AINT_T__) __sync_fetch_and_or(&var->counter, mask);
+    return (ETHR_AINT_T__) __sync_fetch_and_or(&var->value, mask);
+}
+
+#endif /* ETHR_HAVE___sync_fetch_and_or */
+
+/*
+ * cmpxchg()
+ */
+#if (ETHR_HAVE___atomic_compare_exchange_n & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if (ETHR_GCC_RELAXED_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_CMPXCHG 1
+#else
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_CMPXCHG 1
+#endif
+
+static ETHR_INLINE ETHR_AINT_T__
+ETHR_NATMC_FUNC__(cmpxchg)(ETHR_ATMC_T__ *var,
+			   ETHR_AINT_T__ new,
+			   ETHR_AINT_T__ exp)
+{
+    ETHR_AINT_T__ xchg = exp;
+    if (__atomic_compare_exchange_n(&var->value,
+				    &xchg,
+				    new,
+				    0, /* No spurious failures, please */
+				    __ATOMIC_RELAXED,
+				    __ATOMIC_RELAXED))
+	return exp;
+    return xchg;
 }
 
+#endif /* ETHR_GCC_RELAXED_MOD_VERSIONS__ */
+
+#if (ETHR_GCC_ACQB_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__)
+
+#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_CMPXCHG_ACQB 1
+#else
+#  define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_CMPXCHG_ACQB 1
 #endif
 
+static ETHR_INLINE ETHR_AINT_T__
+ETHR_NATMC_FUNC__(cmpxchg_acqb)(ETHR_ATMC_T__ *var,
+				ETHR_AINT_T__ new,
+				ETHR_AINT_T__ exp)
+{
+    ETHR_AINT_T__ xchg = exp;
+    if (__atomic_compare_exchange_n(&var->value,
+				    &xchg,
+				    new,
+				    0, /* No spurious failures, please */
+				    __ATOMIC_ACQUIRE,
+				    __ATOMIC_ACQUIRE))
+	return exp;
+    return xchg;
+}
+
+#endif /* ETHR_GCC_ACQB_MOD_VERSIONS__ */
+
+#endif /* ETHR_HAVE___atomic_compare_exchange_n */
+
+#if ((ETHR_HAVE___sync_val_compare_and_swap & ETHR_INCLUDE_ATOMIC_IMPL__) \
+     & ETHR_GCC_MB_MOD_VERSIONS__)
+
 #if ETHR_INCLUDE_ATOMIC_IMPL__ == 4
 #  define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_CMPXCHG_MB 1
 #else
@@ -195,17 +553,16 @@ ETHR_NATMC_FUNC__(cmpxchg_mb)(ETHR_ATMC_T__ *var,
 			      ETHR_AINT_T__ new,
 			      ETHR_AINT_T__ old)
 {
-    return __sync_val_compare_and_swap(&var->counter, old, new);
+    return __sync_val_compare_and_swap(&var->value, old, new);
 }
 
+#endif /* ETHR_HAVE___sync_val_compare_and_swap */
+
 #endif /* ETHR_TRY_INLINE_FUNCS */
 
 #undef ETHR_NATMC_FUNC__
 #undef ETHR_ATMC_T__
 #undef ETHR_AINT_T__
 #undef ETHR_AINT_SUFFIX__
-#undef ETHR_HAVE___SYNC_ADD_AND_FETCH
-#undef ETHR_HAVE___SYNC_FETCH_AND_AND
-#undef ETHR_HAVE___SYNC_FETCH_AND_OR
 
 #endif
diff --git a/erts/include/internal/gcc/ethr_dw_atomic.h b/erts/include/internal/gcc/ethr_dw_atomic.h
index 6736f9c547..c2c8f85b7b 100644
--- a/erts/include/internal/gcc/ethr_dw_atomic.h
+++ b/erts/include/internal/gcc/ethr_dw_atomic.h
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2011. All Rights Reserved.
+ * Copyright Ericsson AB 2011-2015. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -18,35 +18,39 @@
  */
 
 /*
- * Description: Native double word atomics using gcc's builtins
+ * Description: Native double word atomics using gcc's __atomic
+ *              and __sync builtins
  * Author: Rickard Green
+ *
+ * Note: The C11 memory model implemented by gcc's __atomic
+ *       builtins does not match the ethread API very well.
+ *
+ *       Due to this we cannot use the __ATOMIC_SEQ_CST
+ *       memory model. For more information see the comment
+ *       in the begining of ethr_membar.h in this directory.
  */
 
 #undef ETHR_INCLUDE_DW_ATOMIC_IMPL__
-#ifndef ETHR_GCC_DW_ATOMIC_H__
-#  define ETHR_GCC_DW_ATOMIC_H__
-#  if ((ETHR_SIZEOF_PTR == 4 \
-        && defined(ETHR_HAVE___SYNC_VAL_COMPARE_AND_SWAP64)) \
-       || (ETHR_SIZEOF_PTR == 8 \
-           && defined(ETHR_HAVE___SYNC_VAL_COMPARE_AND_SWAP128) \
-	   && defined(ETHR_HAVE_INT128_T)))
-#    define ETHR_INCLUDE_DW_ATOMIC_IMPL__
-#  endif
+#if !defined(ETHR_GCC_ATOMIC_DW_ATOMIC_H__)				\
+    && ((ETHR_HAVE___sync_val_compare_and_swap & (2*ETHR_SIZEOF_PTR))	\
+	|| (ETHR_HAVE___atomic_compare_exchange_n & (2*ETHR_SIZEOF_PTR)))
+#  define ETHR_GCC_ATOMIC_DW_ATOMIC_H__
+#  define ETHR_INCLUDE_DW_ATOMIC_IMPL__
 #endif
 
 #ifdef ETHR_INCLUDE_DW_ATOMIC_IMPL__
 #  define ETHR_HAVE_NATIVE_SU_DW_ATOMIC
-#  define ETHR_NATIVE_DW_ATOMIC_IMPL "gcc"
 
-#  if defined(__i386__) || defined(__x86_64__)
-/*
- * If ETHR_RTCHK_USE_NATIVE_DW_ATOMIC_IMPL__ is defined, it will be used
- * at runtime in order to determine if native or fallback implementation
- * should be used.
- */
-#    define ETHR_RTCHK_USE_NATIVE_DW_ATOMIC_IMPL__ \
-       ETHR_X86_RUNTIME_CONF_HAVE_DW_CMPXCHG__
-#  endif
+#if ((ETHR_HAVE___sync_val_compare_and_swap & (2*ETHR_SIZEOF_PTR))	\
+     && (ETHR_HAVE___atomic_compare_exchange_n & (2*ETHR_SIZEOF_PTR)))
+#  define ETHR_NATIVE_DW_ATOMIC_IMPL "gcc_atomic_and_sync_builtins"
+#elif (ETHR_HAVE___atomic_compare_exchange_n & (2*ETHR_SIZEOF_PTR))
+#  define ETHR_NATIVE_DW_ATOMIC_IMPL "gcc_atomic_builtins"
+#elif (ETHR_HAVE___sync_val_compare_and_swap & (2*ETHR_SIZEOF_PTR))
+#  define ETHR_NATIVE_DW_ATOMIC_IMPL "gcc_sync_builtins"
+#else
+#  error "!?"
+#endif
 
 #  if ETHR_SIZEOF_PTR == 4
 #    define ETHR_DW_NATMC_ALIGN_MASK__ 0x7
@@ -89,15 +93,138 @@ typedef union {
 #    define ETHR_DW_DBG_ALIGNED__(PTR)
 #  endif
 
-#define ETHR_HAVE_ETHR_NATIVE_DW_ATOMIC_ADDR
+
+#define ETHR_HAVE_ETHR_NATIVE_DW_ATOMIC_ADDR 1
+
 static ETHR_INLINE ethr_sint_t *
 ethr_native_dw_atomic_addr(ethr_native_dw_atomic_t *var)
 {
     return (ethr_sint_t *) ETHR_DW_NATMC_MEM__(var);
 }
 
+#if (ETHR_HAVE___atomic_store_n & (2*ETHR_SIZEOF_PTR))
+
+#if (ETHR_GCC_RELAXED_VERSIONS__ & (2*ETHR_SIZEOF_PTR))
+
+#define ETHR_HAVE_ETHR_NATIVE_SU_DW_ATOMIC_SET 1
+
+static ETHR_INLINE void
+ethr_native_su_dw_atomic_set(ethr_native_dw_atomic_t *var,
+			     ETHR_NATIVE_SU_DW_SINT_T value)
+{
+    ethr_native_dw_ptr_t p = (ethr_native_dw_ptr_t) ETHR_DW_NATMC_MEM__(var);
+    ETHR_DW_DBG_ALIGNED__(p);
+    __atomic_store_n(p, value, __ATOMIC_RELAXED);
+}
+
+#endif /* ETHR_GCC_RELAXED_VERSIONS__ */
+
+#if (ETHR_GCC_RELB_VERSIONS__ & (2*ETHR_SIZEOF_PTR))
 
-#define ETHR_HAVE_ETHR_NATIVE_SU_DW_ATOMIC_CMPXCHG_MB
+#define ETHR_HAVE_ETHR_NATIVE_SU_DW_ATOMIC_SET_RELB 1
+
+static ETHR_INLINE void
+ethr_native_su_dw_atomic_set_relb(ethr_native_dw_atomic_t *var,
+				  ETHR_NATIVE_SU_DW_SINT_T value)
+{
+    ethr_native_dw_ptr_t p = (ethr_native_dw_ptr_t) ETHR_DW_NATMC_MEM__(var);
+    ETHR_DW_DBG_ALIGNED__(p);
+    __atomic_store_n(p, value, __ATOMIC_RELEASE);
+}
+
+#endif /* ETHR_GCC_RELB_VERSIONS__ */
+
+#endif /* ETHR_HAVE___atomic_store_n */
+
+#if (ETHR_HAVE___atomic_load_n & (2*ETHR_SIZEOF_PTR))
+
+#if (ETHR_GCC_RELAXED_VERSIONS__ & (2*ETHR_SIZEOF_PTR))
+
+#define ETHR_HAVE_ETHR_NATIVE_SU_DW_ATOMIC_READ 1
+
+static ETHR_INLINE ETHR_NATIVE_SU_DW_SINT_T
+ethr_native_su_dw_atomic_read(ethr_native_dw_atomic_t *var)
+{
+    ethr_native_dw_ptr_t p = (ethr_native_dw_ptr_t) ETHR_DW_NATMC_MEM__(var);
+    ETHR_DW_DBG_ALIGNED__(p);
+    return __atomic_load_n(p, __ATOMIC_RELAXED);
+}
+
+#endif /* ETHR_GCC_RELAXED_VERSIONS__ */
+
+#if ((ETHR_GCC_ACQB_VERSIONS__ & (2*ETHR_SIZEOF_PTR))	\
+     & ~ETHR___atomic_load_ACQUIRE_barrier_bug)
+
+#define ETHR_HAVE_ETHR_NATIVE_SU_DW_ATOMIC_READ_ACQB 1
+
+static ETHR_INLINE ETHR_NATIVE_SU_DW_SINT_T
+ethr_native_su_dw_atomic_read_acqb(ethr_native_dw_atomic_t *var)
+{
+    ethr_native_dw_ptr_t p = (ethr_native_dw_ptr_t) ETHR_DW_NATMC_MEM__(var);
+    ETHR_DW_DBG_ALIGNED__(p);
+    return __atomic_load_n(p, __ATOMIC_ACQUIRE);
+}
+
+#endif /* ETHR_GCC_ACQB_VERSIONS__ */
+
+#endif /* ETHR_HAVE___atomic_load_n */
+
+#if (ETHR_HAVE___atomic_compare_exchange_n & (2*ETHR_SIZEOF_PTR))
+
+#if (ETHR_GCC_RELAXED_MOD_VERSIONS__ & (2*ETHR_SIZEOF_PTR))
+
+#define ETHR_HAVE_ETHR_NATIVE_SU_DW_ATOMIC_CMPXCHG 1
+
+static ETHR_INLINE ETHR_NATIVE_SU_DW_SINT_T
+ethr_native_su_dw_atomic_cmpxchg(ethr_native_dw_atomic_t *var,
+				 ETHR_NATIVE_SU_DW_SINT_T new,
+				 ETHR_NATIVE_SU_DW_SINT_T exp)
+{
+    ethr_native_dw_ptr_t p = (ethr_native_dw_ptr_t) ETHR_DW_NATMC_MEM__(var);
+    ETHR_NATIVE_SU_DW_SINT_T xchg = exp;
+    ETHR_DW_DBG_ALIGNED__(p);
+    if (__atomic_compare_exchange_n(p,
+				    &xchg,
+				    new,
+				    0,
+				    __ATOMIC_RELAXED,
+				    __ATOMIC_RELAXED))
+	return exp;
+    return xchg;
+}
+
+#endif /* ETHR_GCC_RELAXED_MOD_VERSIONS__ */
+
+#if (ETHR_GCC_ACQB_MOD_VERSIONS__ & (2*ETHR_SIZEOF_PTR))
+
+#define ETHR_HAVE_ETHR_NATIVE_SU_DW_ATOMIC_CMPXCHG_ACQB 1
+
+static ETHR_INLINE ETHR_NATIVE_SU_DW_SINT_T
+ethr_native_su_dw_atomic_cmpxchg_acqb(ethr_native_dw_atomic_t *var,
+				      ETHR_NATIVE_SU_DW_SINT_T new,
+				      ETHR_NATIVE_SU_DW_SINT_T exp)
+{
+    ethr_native_dw_ptr_t p = (ethr_native_dw_ptr_t) ETHR_DW_NATMC_MEM__(var);
+    ETHR_NATIVE_SU_DW_SINT_T xchg = exp;
+    ETHR_DW_DBG_ALIGNED__(p);
+    if (__atomic_compare_exchange_n(p,
+				    &xchg,
+				    new,
+				    0,
+				    __ATOMIC_ACQUIRE,
+				    __ATOMIC_ACQUIRE))
+	return exp;
+    return xchg;
+}
+
+#endif /* ETHR_GCC_ACQB_MOD_VERSIONS__ */
+
+#endif /* ETHR_HAVE___atomic_compare_exchange_n */
+
+#if ((ETHR_HAVE___sync_val_compare_and_swap & (2*ETHR_SIZEOF_PTR)) \
+     & ETHR_GCC_MB_MOD_VERSIONS__)
+
+#define ETHR_HAVE_ETHR_NATIVE_SU_DW_ATOMIC_CMPXCHG_MB 1
 
 static ETHR_INLINE ETHR_NATIVE_SU_DW_SINT_T
 ethr_native_su_dw_atomic_cmpxchg_mb(ethr_native_dw_atomic_t *var,
@@ -109,7 +236,8 @@ ethr_native_su_dw_atomic_cmpxchg_mb(ethr_native_dw_atomic_t *var,
     return __sync_val_compare_and_swap(p, old, new);
 }
 
-#endif /* ETHR_TRY_INLINE_FUNCS */
+#endif /* ETHR_HAVE___sync_val_compare_and_swap */
 
-#endif /* ETHR_GCC_DW_ATOMIC_H__ */
+#endif /* ETHR_TRY_INLINE_FUNCS */
 
+#endif /* ETHR_INCLUDE_DW_ATOMIC_IMPL__ */
diff --git a/erts/include/internal/gcc/ethr_membar.h b/erts/include/internal/gcc/ethr_membar.h
index 7d428fc68e..d2d36907f3 100644
--- a/erts/include/internal/gcc/ethr_membar.h
+++ b/erts/include/internal/gcc/ethr_membar.h
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2011. All Rights Reserved.
+ * Copyright Ericsson AB 2011-2015. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -18,56 +18,196 @@
  */
 
 /*
- * Description: Memory barriers when using gcc's builtins
+ * Description: Memory barriers when using gcc's __atomic and
+ *              __sync builtins
  * Author: Rickard Green
+ *
+ * Note: The C11 memory model implemented by gcc's __atomic
+ *       builtins does not match the ethread API very well.
+ *
+ *       A function with a barrier postfix in the ethread atomic
+ *       API needs to ensure that all stores and loads are
+ *       ordered around it according to the semantics of the
+ *       barrier specified.
+ *
+ *       The C11 aproch is different. The __atomic builtins
+ *       API takes a memory model parameter. Assuming that all
+ *       memory syncronizations using the involved atomic
+ *       variables are made using this API, the synchronizations
+ *       will adhere to the memory models used. That is, you do
+ *       *not* know how loads and stores will be ordered around
+ *       a specific __atomic operation in the general case. You
+ *       only know the total effect of the combination of
+ *       operations issued will adhere to the model.
+ *
+ *       This limits how we can use the __atomic builtins. What
+ *       we cannot use:
+ *
+ *       1. We cannot rely on __atomic_thread_fence() to issue
+ *          any specific memory barriers at all. This regardless
+ *          of memory model parameter passed. That is, we cannot
+ *          use the __atomic_thread_fence() builtin at all.
+ *
+ *          Why is this? If all __atomic builtins accessing
+ *          memory issue memory barriers, __atomic_thread_fence()
+ *          does not have to issue memory barriers. The
+ *          implementation for the Itanium architecture is an
+ *          example of this. Even using the __ATOMIC_RELAXED
+ *          memory model all __atomic builtins accessing memory
+ *          will issue memory barriers. Due to this no memory
+ *          barriers at all will be issued by
+ *           __atomic_thread_fence() using either one of the
+ *          __ATOMIC_CONSUME, __ATOMIC_ACQUIRE, or
+ *          __ATOMIC_RELEASE memory models.
+ *
+ *       2. We cannot rely on any __atomic builtin with the
+ *          __ATOMIC_SEQ_CST memory model parameters to
+ *          issue any specific memory barriers. That is, we
+ *          cannot use these memory models at all.
+ *
+ *          Why is this? Since all synchronizations is expected
+ *          to be made using the __atomic builtins, memory
+ *          barriers only have to be issued by some of them,
+ *          and you do not know which ones wont issue memory
+ *          barriers.
+ *
+ *          One can easily be fooled into believing that when
+ *          using the __ATOMIC_SEQ_CST memory model on all
+ *          operations, all operations will issue full memory
+ *          barriers. This is however not the case. The
+ *          implementation for the x86_64 architecture is an
+ *          example of this. Since all operations except loads
+ *          issue full memory barriers, no memory barriers at
+ *          all is issued by loads. This could also be
+ *          implemented by issuing a full memory barrier on
+ *          loads, but no barrier at all on stores.
+ *
+ *       What can be used then?
+ *       1. All (legacy) __sync builtins implying full memory
+ *          barriers issued.
+ *       2. All __atomic builtins using the __ATOMIC_RELAXED
+ *          memory model can, of course, be used. This since
+ *          no ordering guarantees at all are made.
+ *       3. All __atomic builtins accessing memory using the
+ *          __ATOMIC_ACQUIRE and __ATOMIC_RELEASE memory
+ *          models. This since an __atomic builtin memory
+ *          access using the __ATOMIC_ACQUIRE must at least
+ *          issue an aquire memory barrier and an __atomic
+ *          builtin memory acess with the __ATOMIC_RELEASE
+ *          memory model must at least issue a release memory
+ *          barrier. Otherwise the two can not be paired.
+ *       4. All __atomic builtins accessing memory using the
+ *          __ATOMIC_CONSUME builtin can be used for the same
+ *          reason __ATOMIC_ACQUIRE can be used. The ethread
+ *          atomic framework implementing the ethread API
+ *          using native implementations does not expect the
+ *          native implementations to produce versions with
+ *          data dependent read barriers, so until the
+ *          framework is changed we haven't got any use for
+ *          for it.
+ *
+ *       For some architectures we have our own memory barrier
+ *       implementations. We prefer to use these since they
+ *       should be as fine grained as possible. For other
+ *       architectures we use the __sync_synchronize() builtin
+ *       which issue a full memory barrier. For these
+ *       architectures we have to assume that all loads and
+ *       stores can be reordered without limitation. That is,
+ *       unnecessary memory barriers will be issued if such
+ *       reordering actually cannot occur.
  */
 
-#ifndef ETHR_GCC_MEMBAR_H__
-#define ETHR_GCC_MEMBAR_H__
+/*
+ * We prefer to use our own memory barrier implementation if
+ * such exist instead of using __sync_synchronize()...
+ */
+#if defined(__i386__) || defined(__x86_64__)
+#  include "../i386/ethr_membar.h"
+#elif defined(__sparc__)
+#  include "../sparc32/ethr_membar.h"
+#elif defined(__powerpc__) || defined(__ppc__) || defined(__powerpc64__)
+#  include "../ppc32/ethr_membar.h"
+#elif !defined(ETHR_GCC_ATOMIC_MEMBAR_H__)			\
+    && (ETHR_HAVE_GCC_ASM_ARM_DMB_INSTRUCTION			\
+	|| ETHR_HAVE___sync_synchronize				\
+	|| (ETHR_HAVE___sync_val_compare_and_swap & 12))
+#define ETHR_GCC_ATOMIC_MEMBAR_H__
 
 #define ETHR_LoadLoad	(1 << 0)
 #define ETHR_LoadStore	(1 << 1)
 #define ETHR_StoreLoad	(1 << 2)
 #define ETHR_StoreStore	(1 << 3)
 
+#define ETHR_COMPILER_BARRIER __asm__ __volatile__("" : : : "memory")
+
+#if ETHR_HAVE_GCC_ASM_ARM_DMB_INSTRUCTION
+
+static __inline__ __attribute__((__always_inline__)) void
+ethr_full_fence__(void)
+{
+    __asm__ __volatile__("dmb sy" : : : "memory");
+}
+
+static __inline__ __attribute__((__always_inline__)) void
+ethr_store_fence__(void)
+{
+    __asm__ __volatile__("dmb st" : : : "memory");
+}
+
+#define ETHR_MEMBAR(B) \
+ ETHR_CHOOSE_EXPR((B) == ETHR_StoreStore, ethr_store_fence__(), ethr_full_fence__())
+
+#elif ETHR_HAVE___sync_synchronize
+
+static __inline__ __attribute__((__always_inline__)) void
+ethr_full_fence__(void)
+{
+    /*
+     * The compiler barriers are here to fix missing clobbers
+     * in __sync_synchronize() when using buggy LLVM
+     * implementation of __sync_synchronize(). They
+     * do not introduce any unnecessary overhead when used
+     * here, so we use them for all systems.
+     */
+    ETHR_COMPILER_BARRIER;
+    __sync_synchronize();
+    ETHR_COMPILER_BARRIER;
+}
+
+#else /* !ETHR_HAVE___sync_synchronize */
+
 /*
- * According to the documentation __sync_synchronize() will
- * issue a full memory barrier. However, __sync_synchronize()
- * is known to erroneously be a noop on at least some
- * platforms with some gcc versions. This has suposedly been
- * fixed in some gcc version, but we don't know from which
- * version. Therefore, we only use it when it has been
- * verified to work. Otherwise we use the workaround
- * below.
+ * Buggy __sync_synchronize(); call __sync_val_compare_and_swap()
+ * instead which imply a full memory barrier (and hope that one
+ * isn't buggy too).
  */
 
-#if defined(ETHR_HAVE___SYNC_VAL_COMPARE_AND_SWAP32)
+#if (ETHR_HAVE___sync_val_compare_and_swap & 4)
 #  define ETHR_MB_T__ ethr_sint32_t
-#elif defined(ETHR_HAVE___SYNC_VAL_COMPARE_AND_SWAP64)
+#elif (ETHR_HAVE___sync_val_compare_and_swap & 8)
 #  define ETHR_MB_T__ ethr_sint64_t
-#else
-#  error "No __sync_val_compare_and_swap"
 #endif
-#define ETHR_SYNC_SYNCHRONIZE_WORKAROUND__ \
-do { \
-    volatile ETHR_MB_T__ x___ = 0; \
-    (void) __sync_val_compare_and_swap(&x___, (ETHR_MB_T__) 0, (ETHR_MB_T__) 1); \
-} while (0)
 
-#define ETHR_COMPILER_BARRIER __asm__ __volatile__("" : : : "memory")
+static __inline__ __attribute__((__always_inline__)) void
+ethr_full_fence__(void)
+{
+    volatile ETHR_MB_T__ x = 0;
+    (void) __sync_val_compare_and_swap(&x, (ETHR_MB_T__) 0, (ETHR_MB_T__) 1);
+}
 
-#if defined(__mips__) && ETHR_AT_LEAST_GCC_VSN__(4, 2, 0)
-#  define ETHR_MEMBAR(B) __sync_synchronize()
-#  define ETHR_READ_DEPEND_MEMORY_BARRIER __sync_synchronize()
-#elif ((defined(__powerpc__) || defined(__ppc__)) \
-       && ETHR_AT_LEAST_GCC_VSN__(4, 1, 2))
-#  define ETHR_MEMBAR(B) __sync_synchronize()
-#else /* Use workaround */
-#  define ETHR_MEMBAR(B) \
-     ETHR_SYNC_SYNCHRONIZE_WORKAROUND__
-#  define ETHR_READ_DEPEND_MEMORY_BARRIER \
-     ETHR_SYNC_SYNCHRONIZE_WORKAROUND__
+#endif /* !ETHR_HAVE___sync_synchronize */
+
+#ifndef ETHR_MEMBAR
+#  define ETHR_MEMBAR(B) ethr_full_fence__()
 #endif
 
+/*
+ * Define ETHR_READ_DEPEND_MEMORY_BARRIER for all architechtures
+ * not known to order data dependent loads
+ */
+
+#if !defined(__ia64__) && !defined(__arm__)
+#  define ETHR_READ_DEPEND_MEMORY_BARRIER ETHR_MEMBAR(ETHR_LoadLoad)
+#endif
 
-#endif /* ETHR_GCC_MEMBAR_H__ */
+#endif /* ETHR_GCC_ATOMIC_MEMBAR_H__ */
diff --git a/erts/include/internal/gcc/ethread.h b/erts/include/internal/gcc/ethread.h
index 365a3535cf..be3e1da90e 100644
--- a/erts/include/internal/gcc/ethread.h
+++ b/erts/include/internal/gcc/ethread.h
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2010-2011. All Rights Reserved.
+ * Copyright Ericsson AB 2010-2015. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -18,20 +18,292 @@
  */
 
 /*
- * Description: Native atomic ethread support when using gcc
+ * Description: Native atomic ethread support when using gcc's __atomic
+ *              and __sync builtins
  * Author: Rickard Green
  */
 
-#ifndef ETHREAD_GCC_H__
-#define ETHREAD_GCC_H__
-
-#if defined(ETHR_HAVE___SYNC_VAL_COMPARE_AND_SWAP32) \
-     || defined(ETHR_HAVE___SYNC_VAL_COMPARE_AND_SWAP64)
+#if !defined(ETHREAD_GCC_NATIVE_H__) && ETHR_GCC_COMPILER
+#define ETHREAD_GCC_NATIVE_H__
 
 #ifndef ETHR_MEMBAR
 #  include "ethr_membar.h"
 #endif
 
+#define ETHR_GCC_VERSIONS_MASK__ 28
+
+#undef ETHR_GCC_VOLATILE_STORE_IS_ATOMIC_STORE__
+#undef ETHR_GCC_VOLATILE_STORE_IS_ATOMIC_STORE_RELB__
+#undef ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD__
+#undef ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD_ACQB__
+#undef ETHR_GCC_RELAXED_VERSIONS__
+#undef ETHR_GCC_RELAXED_MOD_VERSIONS__
+#undef ETHR_GCC_ACQB_VERSIONS__
+#undef ETHR_GCC_ACQB_MOD_VERSIONS__
+#undef ETHR_GCC_RELB_VERSIONS__
+#undef ETHR_GCC_RELB_MOD_VERSIONS__
+#undef ETHR_GCC_MB_MOD_VERSIONS__
+
+/*
+ * True GNU GCCs before version 4.8 do not emit a memory barrier
+ * after the load in the __atomic_load_n(_, __ATOMIC_ACQUIRE)
+ * case (which is needed on most architectures).
+ */
+#undef ETHR___atomic_load_ACQUIRE_barrier_bug
+#if ETHR_GCC_COMPILER != ETHR_GCC_COMPILER_TRUE
+/*
+ * A gcc compatible compiler. We have no information
+ * about the existence of this bug, but we assume
+ * that it is not impossible that it could have
+ * been "inherited". Therefore, until we are certain
+ * that the bug does not exist, we assume that it
+ * does.
+ */
+#  define ETHR___atomic_load_ACQUIRE_barrier_bug ETHR_GCC_VERSIONS_MASK__
+#elif !ETHR_AT_LEAST_GCC_VSN__(4, 8, 0)
+/* True gcc of version < 4.8, i.e., bug exist... */
+#  define ETHR___atomic_load_ACQUIRE_barrier_bug ETHR_GCC_VERSIONS_MASK__
+#else /* True gcc of version >= 4.8 */
+/*
+ * Sizes less than or equal to word size have been fixed,
+ * but double word size has not been fixed.
+ */
+#  if ETHR_SIZEOF_PTR == 8
+#    define ETHR___atomic_load_ACQUIRE_barrier_bug \
+    (~(8|4) & ETHR_GCC_VERSIONS_MASK__)
+#  elif ETHR_SIZEOF_PTR == 4
+#    define ETHR___atomic_load_ACQUIRE_barrier_bug \
+    (~4 & ETHR_GCC_VERSIONS_MASK__)
+#  else
+#    error word size not supported
+#  endif
+#endif
+
+#define ETHR_GCC_VOLATILE_STORE_IS_ATOMIC_STORE__ 0
+#define ETHR_GCC_VOLATILE_STORE_IS_ATOMIC_STORE_RELB__ 0
+#define ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD__ 0
+#define ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD_ACQB__ 0
+#define ETHR_GCC_RELAXED_VERSIONS__ ETHR_GCC_VERSIONS_MASK__
+#define ETHR_GCC_RELAXED_MOD_VERSIONS__ ETHR_GCC_VERSIONS_MASK__
+
+#if ETHR_TRUST_GCC_ATOMIC_BUILTINS_MEMORY_BARRIERS
+#  define ETHR_GCC_ACQB_VERSIONS__ ETHR_GCC_VERSIONS_MASK__
+#  define ETHR_GCC_ACQB_MOD_VERSIONS__ ETHR_GCC_VERSIONS_MASK__
+#  define ETHR_GCC_RELB_VERSIONS__ ETHR_GCC_VERSIONS_MASK__
+#  define ETHR_GCC_RELB_MOD_VERSIONS__ ETHR_GCC_VERSIONS_MASK__
+#else
+/*
+ * This is currently the default (on most platforms) since
+ * we've seen too many memory barrier bugs produced by gcc...
+ */
+#  define ETHR_GCC_ACQB_VERSIONS__ 0
+#  define ETHR_GCC_ACQB_MOD_VERSIONS__ 0
+#  define ETHR_GCC_RELB_VERSIONS__ 0
+#  define ETHR_GCC_RELB_MOD_VERSIONS__ 0
+#endif
+/*
+ * In the general case we do not want any full barrier versions
+ * if we can implement more relaxed ones (using __atomic_* builtins).
+ * This since the implementations normally need extra memory barrier
+ * instructions to implement these. The x86/x86_64 implementations
+ * are an exception see below.
+ */
+#define ETHR_GCC_MB_MOD_VERSIONS__ \
+    (ETHR_GCC_VERSIONS_MASK__ & ~ETHR_HAVE___atomic_compare_exchange_n)
+
+#if ETHR_SIZEOF_PTR == 8
+#  define ETHR_GCC_VOLATILE_BIT_MASK__ 12
+#elif ETHR_SIZEOF_PTR == 4
+#  define ETHR_GCC_VOLATILE_BIT_MASK__ 4
+#endif
+
+#if defined(__i386__) || defined(__x86_64__) || defined(__sparc__)	\
+    || defined(__powerpc__) || defined(__ppc__) || defined(__mips__)	\
+    || defined(__alpha__) || defined(__ia64__)
+
+/*
+ * Aligned volatile stores and loads of data smaller
+ * than or equal to word size are atomic...
+ */
+#  undef ETHR_GCC_VOLATILE_STORE_IS_ATOMIC_STORE__
+#  define ETHR_GCC_VOLATILE_STORE_IS_ATOMIC_STORE__ ETHR_GCC_VOLATILE_BIT_MASK__
+#  undef ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD__
+#  define ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD__ ETHR_GCC_VOLATILE_BIT_MASK__
+
+#elif defined(__arm__)
+
+/* volatile stores are problematic on some machines... */
+#  undef ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD__
+#  define ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD__ ETHR_GCC_VOLATILE_BIT_MASK__
+
+#endif
+
+#if defined(__ia64__)
+
+/* Volatile stores produce stores with release barriers. */
+#  undef ETHR_GCC_VOLATILE_STORE_IS_ATOMIC_STORE_RELB__
+#  define ETHR_GCC_VOLATILE_STORE_IS_ATOMIC_STORE_RELB__ ETHR_GCC_VOLATILE_BIT_MASK__
+
+/* Volatile loads produce loads with acquire barrier. */
+#  undef ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD_ACQB__
+#  define ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD_ACQB__ ETHR_GCC_VOLATILE_BIT_MASK__
+
+/*
+ * We trust gcc to produce acquire/release barriers on itanium.
+ * Since all atomic ops also have at least acquire or release
+ * barriers (also when passed the relaxed memory model) it
+ * would be very inefficient not to use these as native
+ * barriers on Itanium.
+ */
+#  undef ETHR_GCC_ACQB_VERSIONS__
+#  define ETHR_GCC_ACQB_VERSIONS__ ETHR_GCC_VERSIONS_MASK__
+#  undef ETHR_GCC_ACQB_MOD_VERSIONS__
+#  define ETHR_GCC_ACQB_MOD_VERSIONS__ ETHR_GCC_VERSIONS_MASK__
+#  undef ETHR_GCC_RELB_VERSIONS__
+#  define ETHR_GCC_RELB_VERSIONS__ ETHR_GCC_VERSIONS_MASK__
+#  undef ETHR_GCC_RELB_MOD_VERSIONS__
+#  define ETHR_GCC_RELB_MOD_VERSIONS__ ETHR_GCC_VERSIONS_MASK__
+
+/*
+ * Itanium is not effected by the load acquire
+ * bug since the barrier is part of the instruction
+ * on Itanium (ld.acq), and not a separate instruction
+ * as on most platforms.
+ */
+#  undef ETHR___atomic_load_ACQUIRE_barrier_bug
+#  define ETHR___atomic_load_ACQUIRE_barrier_bug 0
+
+/*
+ * No point exposing relaxed versions since they are
+ * implemended using either acquire or release
+ * barriers.
+ */
+#  undef ETHR_GCC_RELAXED_VERSIONS__
+#  define ETHR_GCC_RELAXED_VERSIONS__ 0
+
+/* #endif defined(__ia64__) */
+#elif defined(__i386__) || defined(__x86_64__)
+
+/*
+ * Want full barrier versions of all modification
+ * operations since all of these are implemented
+ * using locked instructions implying full memory
+ * barriers.
+ */
+#  undef ETHR_GCC_MB_MOD_VERSIONS__
+#  define ETHR_GCC_MB_MOD_VERSIONS__ ETHR_HAVE___sync_val_compare_and_swap
+
+/*
+ * No point exposing acquire/release versions
+ * when we got full memory barrier versions
+ * of modification operations since all of these
+ * are implemented using locked instructions
+ * implying full memory barriers.
+ */
+#  if ETHR_GCC_ACQB_MOD_VERSIONS__
+#    undef ETHR_GCC_ACQB_MOD_VERSIONS__
+#    define ETHR_GCC_ACQB_MOD_VERSIONS__ \
+    (ETHR_GCC_VERSIONS_MASK__ & ~ETHR_HAVE___sync_val_compare_and_swap)
+#  endif
+#  if ETHR_GCC_RELB_MOD_VERSIONS__
+#    undef ETHR_GCC_RELB_MOD_VERSIONS__
+#    define ETHR_GCC_RELB_MOD_VERSIONS__ \
+    (ETHR_GCC_VERSIONS_MASK__ & ~ETHR_HAVE___sync_val_compare_and_swap)
+#  endif
+
+#  ifdef ETHR_X86_OUT_OF_ORDER
+
+/* See above... */
+#    undef ETHR_GCC_RELAXED_MOD_VERSIONS__
+#    define ETHR_GCC_RELAXED_MOD_VERSIONS__ 0
+
+#  else /* !ETHR_X86_OUT_OF_ORDER, i.e., we don't use any x86-OOO instructions... */
+
+/*
+ * Not effected by the load acquire barrier bug,
+ * since no barrier at all is needed for a load
+ * acquire...
+ */
+#    undef ETHR___atomic_load_ACQUIRE_barrier_bug
+#    define ETHR___atomic_load_ACQUIRE_barrier_bug 0
+
+/* Stores imply release barriers semantics. */
+#    undef ETHR_GCC_VOLATILE_STORE_IS_ATOMIC_STORE_RELB__
+#    define ETHR_GCC_VOLATILE_STORE_IS_ATOMIC_STORE_RELB__ ETHR_GCC_VOLATILE_BIT_MASK__
+
+/* Loads imply acquire barrier semantics. */
+#    undef ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD_ACQB__
+#    define ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD_ACQB__ ETHR_GCC_VOLATILE_BIT_MASK__
+
+/*
+ * Trust load acquire and store release for sizes
+ * where volatile operation implies these barrier
+ * semantics since no barriers are needed.
+ */
+#    if !ETHR_GCC_ACQB_VERSIONS__
+#      undef ETHR_GCC_ACQB_VERSIONS__
+#      define ETHR_GCC_ACQB_VERSIONS__ ETHR_GCC_VOLATILE_BIT_MASK__
+#    endif
+#    if !ETHR_GCC_RELB_VERSIONS__
+#      undef ETHR_GCC_RELB_VERSIONS__
+#      define ETHR_GCC_RELB_VERSIONS__ ETHR_GCC_VOLATILE_BIT_MASK__
+#    endif
+
+/*
+ * No point exposing relaxed versions at all since
+ * all mod operations are implemented with locked
+ * instructions implying full memory barriers and
+ * volatile store and load imply release and
+ * acquire barrier semantics.
+ */
+#    undef ETHR_GCC_RELAXED_VERSIONS__
+#    define ETHR_GCC_RELAXED_VERSIONS__ 0
+
+#  endif /* !ETHR_X86_OUT_OF_ORDER */
+
+/* #endif defined(__i386__) || defined(__x86_64__) */
+#elif defined(__powerpc__) || defined(__ppc__)
+
+#  if !defined(ETHR_PPC_HAVE_LWSYNC)
+/*
+ * Release barriers are typically implemented using
+ * the lwsync instruction. We want our runtime
+ * configure test to determine if the lwsync
+ * instruction is available on the system or not
+ * before we use it. Therefore, do not implement any
+ * native ops using the __ATOMIC_RELEASE model.
+ */
+#    undef ETHR_GCC_RELB_VERSIONS__
+#    define ETHR_GCC_RELB_VERSIONS__ 0
+#    if defined(ETHR_GCC_IMPLEMENT_ACQB_USING_LWSYNC)
+/*
+ * Acquire barriers are usually implemented by other means
+ * than lwsync, but can be implemented using lwsync. Define
+ * ETHR_GCC_IMPLEMENT_ACQB_USING_LWSYNC if acquire barriers
+ * are implemented using lwsync.
+ */
+#      undef ETHR_GCC_ACQB_VERSIONS__
+#      define ETHR_GCC_ACQB_VERSIONS__ 0
+#    endif
+#  endif
+
+#endif /* defined(__powerpc__) || defined(__ppc__) */
+
+#if !ETHR_GCC_RELAXED_VERSIONS__
+#  undef ETHR_GCC_RELAXED_MOD_VERSIONS__
+#  define ETHR_GCC_RELAXED_MOD_VERSIONS__ 0
+#endif
+
+#if !ETHR_GCC_ACQB_VERSIONS__
+#  undef ETHR_GCC_ACQB_MOD_VERSIONS__
+#  define ETHR_GCC_ACQB_MOD_VERSIONS__ 0
+#endif
+
+#if !ETHR_GCC_RELB_VERSIONS__
+#  undef ETHR_GCC_RELB_MOD_VERSIONS__
+#  define ETHR_GCC_RELB_MOD_VERSIONS__ 0
+#endif
+
 #if !defined(ETHR_HAVE_NATIVE_ATOMIC32)
 #  define ETHR_ATOMIC_WANT_32BIT_IMPL__
 #  include "ethr_atomic.h"
@@ -42,12 +314,51 @@
 #  include "ethr_atomic.h"
 #endif
 
+#if defined(__x86_64__)
+/*
+ * No instructions available for native implementation
+ * of these for dw-atomics...
+ */
+#  undef ETHR_GCC_RELAXED_VERSIONS__
+#  define ETHR_GCC_RELAXED_VERSIONS__ 0
+#  undef ETHR_GCC_ACQB_VERSIONS__
+#  define ETHR_GCC_ACQB_VERSIONS__ 0
+#  undef ETHR_GCC_RELB_VERSIONS__
+#  define ETHR_GCC_RELB_VERSIONS__ 0
+#endif
+
+#if !ETHR_GCC_RELAXED_VERSIONS__
+#  undef ETHR_GCC_RELAXED_MOD_VERSIONS__
+#  define ETHR_GCC_RELAXED_MOD_VERSIONS__ 0
+#endif
+
+#if !ETHR_GCC_ACQB_VERSIONS__
+#  undef ETHR_GCC_ACQB_MOD_VERSIONS__
+#  define ETHR_GCC_ACQB_MOD_VERSIONS__ 0
+#endif
+
+#if !ETHR_GCC_RELB_VERSIONS__
+#  undef ETHR_GCC_RELB_MOD_VERSIONS__
+#  define ETHR_GCC_RELB_MOD_VERSIONS__ 0
+#endif
+
 #if (!defined(ETHR_HAVE_NATIVE_DW_ATOMIC) \
      && !(ETHR_SIZEOF_PTR == 4 && defined(ETHR_HAVE_NATIVE_ATOMIC64)) \
      && !(ETHR_SIZEOF_PTR == 8 && defined(ETHR_HAVE_NATIVE_ATOMIC128)))
 #  include "ethr_dw_atomic.h"
 #endif
 
-#endif
+#undef ETHR___atomic_load_ACQUIRE_barrier_bug
+#undef ETHR_GCC_VOLATILE_STORE_IS_ATOMIC_STORE__
+#undef ETHR_GCC_VOLATILE_STORE_IS_ATOMIC_STORE_RELB__
+#undef ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD__
+#undef ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD_ACQB__
+#undef ETHR_GCC_RELAXED_VERSIONS__
+#undef ETHR_GCC_RELB_VERSIONS__
+#undef ETHR_GCC_RELB_VERSIONS__
+#undef ETHR_GCC_RELAXED_MOD_VERSIONS__
+#undef ETHR_GCC_ACQB_MOD_VERSIONS__
+#undef ETHR_GCC_RELB_MOD_VERSIONS__
+#undef ETHR_GCC_MB_MOD_VERSIONS__
 
-#endif
+#endif /* ETHREAD_GCC_NATIVE_H__ */
diff --git a/erts/include/internal/pthread/ethr_event.h b/erts/include/internal/pthread/ethr_event.h
index d0a77990cc..f67bac858b 100644
--- a/erts/include/internal/pthread/ethr_event.h
+++ b/erts/include/internal/pthread/ethr_event.h
@@ -46,12 +46,12 @@ typedef struct {
     ethr_atomic32_t futex;
 } ethr_event;
 
-#define ETHR_FUTEX__(FTX, OP, VAL)			\
+#define ETHR_FUTEX__(FTX, OP, VAL, TIMEOUT)		\
   (-1 == syscall(__NR_futex,				\
 		 (void *) ethr_atomic32_addr((FTX)),	\
 		 (OP),					\
 		 (int) (VAL),				\
-		 NULL,					\
+		 (TIMEOUT),				\
 		 NULL,					\
 		 0)					\
    ? errno : 0)
@@ -64,7 +64,7 @@ ETHR_INLINE_FUNC_NAME_(ethr_event_set)(ethr_event *e)
     ethr_sint32_t val;
     val = ethr_atomic32_xchg_mb(&e->futex, ETHR_EVENT_ON__);
     if (val == ETHR_EVENT_OFF_WAITER__) {
-	int res = ETHR_FUTEX__(&e->futex, ETHR_FUTEX_WAKE__, 1);
+	int res = ETHR_FUTEX__(&e->futex, ETHR_FUTEX_WAKE__, 1, NULL);
 	if (res != 0)
 	    ETHR_FATAL_ERROR__(res);
     }
@@ -80,35 +80,58 @@ ETHR_INLINE_FUNC_NAME_(ethr_event_reset)(ethr_event *e)
 #endif
 
 #elif defined(ETHR_PTHREADS)
-/* --- Posix mutex/cond implementation of events ---------------------------- */
+/* --- Posix mutex/cond pipe/select implementation of events ---------------- */
+
 
 typedef struct {
     ethr_atomic32_t state;
     pthread_mutex_t mtx;
     pthread_cond_t cnd;
+    int fd[2];
 } ethr_event;
 
-#define ETHR_EVENT_OFF_WAITER__		-1L
-#define ETHR_EVENT_OFF__		1L
-#define ETHR_EVENT_ON__ 		0L
+#define ETHR_EVENT_OFF_WAITER_SELECT__	((ethr_sint32_t) -2)
+#define ETHR_EVENT_OFF_WAITER__		((ethr_sint32_t) -1)
+#define ETHR_EVENT_OFF__		((ethr_sint32_t) 1)
+#define ETHR_EVENT_ON__ 		((ethr_sint32_t) 0)
+
+#define ETHR_EVENT_IS_WAITING__(VAL) ((VAL) < 0)
 
 #if defined(ETHR_TRY_INLINE_FUNCS) || defined(ETHR_EVENT_IMPL__)
 
+#ifndef ETHR_HAVE_PTHREAD_TIMED_COND_MONOTONIC
+#include <unistd.h>
+#include <errno.h>
+#endif
+
 static void ETHR_INLINE
 ETHR_INLINE_FUNC_NAME_(ethr_event_set)(ethr_event *e)
 {
     ethr_sint32_t val;
     val = ethr_atomic32_xchg_mb(&e->state, ETHR_EVENT_ON__);
-    if (val == ETHR_EVENT_OFF_WAITER__) {
-	int res = pthread_mutex_lock(&e->mtx);
-	if (res != 0)
-	    ETHR_FATAL_ERROR__(res);
-	res = pthread_cond_signal(&e->cnd);
-	if (res != 0)
-	    ETHR_FATAL_ERROR__(res);
-	res = pthread_mutex_unlock(&e->mtx);
-	if (res != 0)
-	    ETHR_FATAL_ERROR__(res);
+    if (ETHR_EVENT_IS_WAITING__(val)) {
+	int res;
+	if (val == ETHR_EVENT_OFF_WAITER_SELECT__) {
+	    ssize_t wres;
+	    int fd = e->fd[1];
+	    ETHR_ASSERT(fd >= 0);
+	    do {
+		wres = write(fd, "!", 1);
+	    } while (wres < 0 && errno == EINTR);
+	    if (wres < 0 && errno != EAGAIN && errno != EWOULDBLOCK)
+		ETHR_FATAL_ERROR__(errno);
+	}
+	else {
+	    res = pthread_mutex_lock(&e->mtx);
+	    if (res != 0)
+		ETHR_FATAL_ERROR__(res);
+	    res = pthread_cond_signal(&e->cnd);
+	    if (res != 0)
+		ETHR_FATAL_ERROR__(res);
+	    res = pthread_mutex_unlock(&e->mtx);
+	    if (res != 0)
+		ETHR_FATAL_ERROR__(res);
+	}
     }
 }
 
@@ -127,6 +150,8 @@ int ethr_event_init(ethr_event *e);
 int ethr_event_destroy(ethr_event *e);
 int ethr_event_wait(ethr_event *e);
 int ethr_event_swait(ethr_event *e, int spincount);
+int ethr_event_twait(ethr_event *e, ethr_sint64_t timeout);
+int ethr_event_stwait(ethr_event *e, int spincount, ethr_sint64_t timeout);
 #if !defined(ETHR_TRY_INLINE_FUNCS) || defined(ETHR_EVENT_IMPL__)
 void ethr_event_set(ethr_event *e);
 void ethr_event_reset(ethr_event *e);
diff --git a/erts/include/internal/win/ethr_event.h b/erts/include/internal/win/ethr_event.h
index 6363174a74..95e681983f 100644
--- a/erts/include/internal/win/ethr_event.h
+++ b/erts/include/internal/win/ethr_event.h
@@ -58,6 +58,8 @@ int ethr_event_init(ethr_event *e);
 int ethr_event_destroy(ethr_event *e);
 int ethr_event_wait(ethr_event *e);
 int ethr_event_swait(ethr_event *e, int spincount);
+int ethr_event_twait(ethr_event *e, ethr_sint64_t timeout);
+int ethr_event_stwait(ethr_event *e, int spincount, ethr_sint64_t timeout);
 #if !defined(ETHR_TRY_INLINE_FUNCS) || defined(ETHR_EVENT_IMPL__)
 void ethr_event_set(ethr_event *e);
 void ethr_event_reset(ethr_event *e);
diff --git a/erts/lib_src/Makefile.in b/erts/lib_src/Makefile.in
index b680c03b1d..d0ebab49d8 100644
--- a/erts/lib_src/Makefile.in
+++ b/erts/lib_src/Makefile.in
@@ -92,6 +92,11 @@ CFLAGS += -DERTS_FRMPTR
 OMIT_OMIT_FP=yes
 PRE_LD=
 else
+ifeq ($(TYPE),icount)
+TYPE_SUFFIX = .icount
+CFLAGS += -DERTS_OPCODE_COUNTER_SUPPORT
+PRE_LD=
+else
 override TYPE=opt
 OMIT_FP=true
 TYPE_SUFFIX=
@@ -105,6 +110,7 @@ endif
 endif
 endif
 endif
+endif
 
 OPSYS=@OPSYS@
 sol2CFLAGS=
diff --git a/erts/lib_src/common/erl_printf.c b/erts/lib_src/common/erl_printf.c
index 2c177ee5ac..a38017b62f 100644
--- a/erts/lib_src/common/erl_printf.c
+++ b/erts/lib_src/common/erl_printf.c
@@ -87,6 +87,41 @@ void (*erts_printf_unblock_fpe)(int) = NULL;
 #	define FWRITE fwrite
 #endif
 
+/* We use write for stdout and stderr as they could be
+   set to non-blocking by shell drivers, and non-blocking
+   FILE * functions work unpredictably as best */
+static int
+printf_putc(int c, FILE *stream) {
+    if ((FILE*)stream == stdout || (FILE*)stream == stderr) {
+        int fd = stream == stdout ? fileno(stdout) : fileno(stderr);
+        /* cast to a char here, because write expects bytes. */
+        unsigned char buf[1] = { c };
+        int res;
+        do {
+            res = write(fd, buf, 1);
+        } while (res == -1 && (errno == EAGAIN || errno == EINTR));
+        if (res == -1) return EOF;
+        return res;
+    }
+
+    return PUTC(c, stream);
+}
+
+static size_t
+printf_fwrite(const void *ptr, size_t size, size_t nitems,
+          FILE *stream) {
+    if ((FILE*)stream == stdout || (FILE*)stream == stderr) {
+        int fd = stream == stdout ? fileno(stdout) : fileno(stderr);
+        int res;
+        do {
+            res = write(fd, ptr, size*nitems);
+        } while (res == -1 && (errno == EAGAIN || errno == EINTR));
+        if (res == -1) return 0;
+        return res;
+    }
+    return FWRITE(ptr, size, nitems, stream);
+}
+
 static int
 get_error_result(void)
 {
@@ -103,10 +138,10 @@ write_f_add_cr(void *vfp, char* buf, size_t len)
     size_t i;
     ASSERT(vfp);
     for (i = 0; i < len; i++) {
-	if (buf[i] == '\n' && PUTC('\r', (FILE *) vfp) == EOF)
-	    return get_error_result();
-	if (PUTC(buf[i], (FILE *) vfp) == EOF)
-	    return get_error_result();
+        if (buf[i] == '\n' && printf_putc('\r', (FILE *) vfp) == EOF)
+            return get_error_result();
+        if (printf_putc(buf[i], (FILE *) vfp) == EOF)
+            return get_error_result();
     }
     return len;
 }
@@ -119,12 +154,12 @@ write_f(void *vfp, char* buf, size_t len)
     if (len <= 64) { /* Try to optimize writes of small bufs. */
 	int i;
 	for (i = 0; i < len; i++)
-	    if (PUTC(buf[i], (FILE *) vfp) == EOF)
+	    if (printf_putc(buf[i], (FILE *) vfp) == EOF)
 		return get_error_result();
     }
     else
 #endif
-    if (FWRITE((void *) buf, sizeof(char), len, (FILE *) vfp) != len)
+    if (printf_fwrite((void *) buf, sizeof(char), len, (FILE *) vfp) != len)
 	return get_error_result();
     return len;
 }
diff --git a/erts/lib_src/common/ethr_aux.c b/erts/lib_src/common/ethr_aux.c
index b77f2178f2..1ba51882c3 100644
--- a/erts/lib_src/common/ethr_aux.c
+++ b/erts/lib_src/common/ethr_aux.c
@@ -148,6 +148,8 @@ ethr_init_common__(ethr_init_data *id)
 {
     int res;
 
+    ethr_init_event__();
+
 #if defined(ETHR_X86_RUNTIME_CONF__)
     x86_init();
 #endif
diff --git a/erts/lib_src/pthread/ethr_event.c b/erts/lib_src/pthread/ethr_event.c
index 9434d60d0a..b35c599365 100644
--- a/erts/lib_src/pthread/ethr_event.c
+++ b/erts/lib_src/pthread/ethr_event.c
@@ -29,6 +29,9 @@
 #endif
 
 #include "ethread.h"
+#undef ETHR_INCLUDE_MONOTONIC_CLOCK__
+#define ETHR_INCLUDE_MONOTONIC_CLOCK__
+#include "ethr_internal.h"
 
 #if defined(ETHR_LINUX_FUTEX_IMPL__)
 /* --- Linux futex implementation of ethread events ------------------------- */
@@ -38,6 +41,12 @@
 
 #define ETHR_YIELD_AFTER_BUSY_LOOPS 50
 
+void
+ethr_init_event__(void)
+{
+
+}
+
 int
 ethr_event_init(ethr_event *e)
 {
@@ -52,21 +61,43 @@ ethr_event_destroy(ethr_event *e)
 }
 
 static ETHR_INLINE int
-wait__(ethr_event *e, int spincount)
+wait__(ethr_event *e, int spincount, ethr_sint64_t timeout)
 {
     unsigned sc = spincount;
     int res;
     ethr_sint32_t val;
     int until_yield = ETHR_YIELD_AFTER_BUSY_LOOPS;
+    ethr_sint64_t time = 0; /* SHUT UP annoying faulty warning... */
+    struct timespec ts, *tsp;
+#ifdef ETHR_HAVE_ETHR_GET_MONOTONIC_TIME
+    ethr_sint64_t start = 0; /* SHUT UP annoying faulty warning... */
+#endif
 
     if (spincount < 0)
 	ETHR_FATAL_ERROR__(EINVAL);
 
+    if (timeout < 0) {
+	tsp = NULL;
+    }
+    else {
+	tsp = &ts;
+	time = timeout;
+	if (spincount == 0) {
+	    val = ethr_atomic32_read(&e->futex);
+	    if (val == ETHR_EVENT_ON__)
+		goto return_event_on;
+	    goto set_timeout;
+	}
+#ifdef ETHR_HAVE_ETHR_GET_MONOTONIC_TIME
+	start = ethr_get_monotonic_time();
+#endif
+    }
+
     while (1) {
 	while (1) {
 	    val = ethr_atomic32_read(&e->futex);
 	    if (val == ETHR_EVENT_ON__)
-		return 0;
+		goto return_event_on;
 	    if (sc == 0)
 		break;
 	    sc--;
@@ -79,44 +110,147 @@ wait__(ethr_event *e, int spincount)
 	    }
 	}
 
+	if (timeout >= 0) {
+#ifdef ETHR_HAVE_ETHR_GET_MONOTONIC_TIME
+	    time = timeout - (ethr_get_monotonic_time() - start);
+#endif
+	set_timeout:
+	    if (time <= 0) {
+		val = ethr_atomic32_read(&e->futex);
+		if (val == ETHR_EVENT_ON__)
+		    goto return_event_on;
+		return ETIMEDOUT;
+	    }
+	    ts.tv_sec = time / (1000*1000*1000);
+	    ts.tv_nsec = time % (1000*1000*1000);
+	}
+
 	if (val != ETHR_EVENT_OFF_WAITER__) {
 	    val = ethr_atomic32_cmpxchg(&e->futex,
 					ETHR_EVENT_OFF_WAITER__,
 					ETHR_EVENT_OFF__);
 
 	    if (val == ETHR_EVENT_ON__)
-		return 0;
+		goto return_event_on;
 	    ETHR_ASSERT(val == ETHR_EVENT_OFF__);
 	}
 
 	res = ETHR_FUTEX__(&e->futex,
 			   ETHR_FUTEX_WAIT__,
-			   ETHR_EVENT_OFF_WAITER__);
-	if (res == EINTR)
+			   ETHR_EVENT_OFF_WAITER__,
+			   tsp);
+	switch (res) {
+	case EINTR:
+	case ETIMEDOUT:
+	    return res;
+	case 0:
+	case EWOULDBLOCK:
 	    break;
-	if (res != 0 && res != EWOULDBLOCK)
+	default:
 	    ETHR_FATAL_ERROR__(res);
+	}
     }
 
-    return res;
+return_event_on:
+
+    ETHR_MEMBAR(ETHR_LoadLoad|ETHR_LoadStore);
+
+    return 0;
+
 }
 
 #elif defined(ETHR_PTHREADS)
-/* --- Posix mutex/cond implementation of events ---------------------------- */
+/* --- Posix mutex/cond pipe/select implementation of events ---------------- */
+
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <unistd.h>
+#include <sys/select.h>
+#include <errno.h>
+#include <string.h>
+
+static void
+setup_nonblocking_pipe(ethr_event *e)
+{
+    int flgs;
+    int res;
+
+    res = pipe(e->fd);
+    if (res != 0)
+	ETHR_FATAL_ERROR__(errno);
+
+    ETHR_ASSERT(e->fd[0] >= 0 && e->fd[1] >= 0);
+
+    flgs = fcntl(e->fd[0], F_GETFL, 0);
+    fcntl(e->fd[0], F_SETFL, flgs | O_NONBLOCK);
+    flgs = fcntl(e->fd[1], F_GETFL, 0);
+    fcntl(e->fd[1], F_SETFL, flgs | O_NONBLOCK);
+
+    ETHR_MEMBAR(ETHR_StoreStore);
+}
+
+#define ETHR_EVENT_INVALID_FD__ -1
+#define ETHR_EVENT_COND_TIMEDWAIT__ -2
+
+#ifdef ETHR_HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC
+static pthread_condattr_t monotonic_clock_cond_attr;
+#endif
+static pthread_condattr_t *monotonic_clock_cond_attr_p;
+
+#ifndef ETHR_HAVE_ETHR_GET_MONOTONIC_TIME
+#  undef ETHR_HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC
+#endif
+#ifndef ETHR_MONOTONIC_CLOCK_ID
+#  undef ETHR_HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC
+#endif
+
+void
+ethr_init_event__(void)
+{
+    monotonic_clock_cond_attr_p = NULL;
+#ifdef ETHR_HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC
+    if (!ethr_get_monotonic_time_is_broken()
+	&& pthread_condattr_init(&monotonic_clock_cond_attr) == 0) {
+	if (pthread_condattr_setclock(&monotonic_clock_cond_attr,
+				      ETHR_MONOTONIC_CLOCK_ID) == 0)
+	    monotonic_clock_cond_attr_p = &monotonic_clock_cond_attr;
+	else
+	    pthread_condattr_destroy(&monotonic_clock_cond_attr);
+    }
+#endif
+}
 
 int
 ethr_event_init(ethr_event *e)
 {
     int res;
+
     ethr_atomic32_init(&e->state, ETHR_EVENT_OFF__);
+
     res = pthread_mutex_init(&e->mtx, NULL);
     if (res != 0)
 	return res;
-    res = pthread_cond_init(&e->cnd, NULL);
+
+    res = pthread_cond_init(&e->cnd, monotonic_clock_cond_attr_p);
     if (res != 0) {
 	pthread_mutex_destroy(&e->mtx);
 	return res;
     }
+
+#ifdef ETHR_HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC
+    /*
+     * If ethr_get_monotonic_time() is broken we
+     * fall back on the pipe/select solution...
+     */
+    if (monotonic_clock_cond_attr_p) {
+	e->fd[0] = e->fd[1] = ETHR_EVENT_COND_TIMEDWAIT__;
+	return 0;
+    }
+#endif
+
+    e->fd[0] = e->fd[1] = ETHR_EVENT_INVALID_FD__;
+
     return 0;
 }
 
@@ -124,6 +258,10 @@ int
 ethr_event_destroy(ethr_event *e)
 {
     int res;
+    if (e->fd[0] >= 0) {
+	close(e->fd[0]);
+	close(e->fd[1]);
+    }
     res = pthread_mutex_destroy(&e->mtx);
     if (res != 0)
 	return res;
@@ -134,12 +272,58 @@ ethr_event_destroy(ethr_event *e)
 }
 
 static ETHR_INLINE int
-wait__(ethr_event *e, int spincount)
+wait__(ethr_event *e, int spincount, ethr_sint64_t timeout)
 {
     int sc = spincount;
     ethr_sint32_t val;
     int res, ulres;
     int until_yield = ETHR_YIELD_AFTER_BUSY_LOOPS;
+    ethr_sint64_t time = 0; /* SHUT UP annoying faulty warning... */
+#ifdef ETHR_HAVE_ETHR_GET_MONOTONIC_TIME
+    ethr_sint64_t start = 0; /* SHUT UP annoying faulty warning... */
+#endif
+#ifdef ETHR_HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC
+    struct timespec cond_timeout;
+#endif
+
+    val = ethr_atomic32_read(&e->state);
+    if (val == ETHR_EVENT_ON__)
+	goto return_event_on;
+
+    if (timeout < 0) {
+	if (spincount == 0)
+	    goto set_event_off_waiter;
+    }
+    if (timeout == 0)
+	return ETIMEDOUT;
+    else {
+	time = timeout;
+	switch (e->fd[0]) {
+	case ETHR_EVENT_INVALID_FD__:
+#ifdef ETHR_HAVE_ETHR_GET_MONOTONIC_TIME
+	    start = ethr_get_monotonic_time();
+#endif
+	    setup_nonblocking_pipe(e);
+	    break;
+#ifdef ETHR_HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC
+	case ETHR_EVENT_COND_TIMEDWAIT__:
+	    time += ethr_get_monotonic_time();
+	    cond_timeout.tv_sec = time / (1000*1000*1000);
+	    cond_timeout.tv_nsec = time % (1000*1000*1000);
+	    if (spincount == 0)
+		goto set_event_off_waiter;
+	    break;
+#endif
+	default:
+	    /* Already initialized pipe... */
+	    if (spincount == 0)
+		goto set_select_timeout;
+#ifdef ETHR_HAVE_ETHR_GET_MONOTONIC_TIME
+	    start = ethr_get_monotonic_time();
+#endif
+	    break;
+	}
+    }
 
     if (spincount < 0)
 	ETHR_FATAL_ERROR__(EINVAL);
@@ -147,7 +331,8 @@ wait__(ethr_event *e, int spincount)
     while (1) {
 	val = ethr_atomic32_read(&e->state);
 	if (val == ETHR_EVENT_ON__)
-	    return 0;
+	    goto return_event_on;
+	
 	if (sc == 0)
 	    break;
 	sc--;
@@ -160,40 +345,150 @@ wait__(ethr_event *e, int spincount)
 	}
     }
 
-    if (val != ETHR_EVENT_OFF_WAITER__) {
-	val = ethr_atomic32_cmpxchg(&e->state,
-				    ETHR_EVENT_OFF_WAITER__,
-				    ETHR_EVENT_OFF__);
-	if (val == ETHR_EVENT_ON__)
-	    return 0;
-	ETHR_ASSERT(val == ETHR_EVENT_OFF__);
+    if (timeout < 0
+#ifdef ETHR_HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC
+	|| e->fd[0] == ETHR_EVENT_COND_TIMEDWAIT__
+#endif
+	) {
+
+    set_event_off_waiter:
+
+	if (val != ETHR_EVENT_OFF_WAITER__) {
+	    ethr_sint32_t act;
+	    act = ethr_atomic32_cmpxchg(&e->state,
+					ETHR_EVENT_OFF_WAITER__,
+					val);
+	    if (act == ETHR_EVENT_ON__)
+		goto return_event_on;
+	    ETHR_ASSERT(act == val);
+	}
+
+	res = pthread_mutex_lock(&e->mtx);
+	if (res != 0)
+	    ETHR_FATAL_ERROR__(res);
+
+	while (1) {
+
+	    val = ethr_atomic32_read(&e->state);
+	    if (val == ETHR_EVENT_ON__) {
+		ETHR_ASSERT(res == 0);
+		ETHR_MEMBAR(ETHR_LoadLoad|ETHR_LoadStore);
+		break;
+	    }
+
+#ifdef ETHR_HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC
+	    if (timeout > 0) {
+		res = pthread_cond_timedwait(&e->cnd, &e->mtx, &cond_timeout);
+		if (res == EINTR || res == ETIMEDOUT)
+		    break;
+	    }
+	    else
+#endif
+	    {
+		res = pthread_cond_wait(&e->cnd, &e->mtx);
+		if (res == EINTR)
+		    break;
+	    }
+	    if (res != 0)
+		ETHR_FATAL_ERROR__(res);
+	}
+
+	ulres = pthread_mutex_unlock(&e->mtx);
+	if (ulres != 0)
+	    ETHR_FATAL_ERROR__(ulres);
+
     }
+    else {
+	int fd;
+	int sres;
+	ssize_t rres;
+	fd_set rset;
+	fd_set eset;
+	struct timeval select_timeout;
+
+#ifdef ETHR_HAVE_ETHR_GET_MONOTONIC_TIME
+	time -= ethr_get_monotonic_time() - start;
+	if (time <= 0)
+	    return ETIMEDOUT;
+#endif
 
-    ETHR_ASSERT(val == ETHR_EVENT_OFF_WAITER__
-		|| val == ETHR_EVENT_OFF__);
+    set_select_timeout:
 
-    res = pthread_mutex_lock(&e->mtx);
-    if (res != 0)
-	ETHR_FATAL_ERROR__(res);
+	ETHR_ASSERT(time > 0);
 
-    while (1) {
+	/*
+	 * timeout in nano-second, but we can only wait
+	 * for micro-seconds...
+	 */
+	time = ((time - 1) / 1000) + 1;
+
+	select_timeout.tv_sec = time / (1000*1000);
+	select_timeout.tv_usec = time % (1000*1000);
+
+	ETHR_ASSERT(val != ETHR_EVENT_ON__);
+
+	fd = e->fd[0];
+
+	/* Cleanup pipe... */
+	do {
+	    char buf[64];
+	    rres = read(fd, buf, sizeof(buf));
+	} while (rres > 0 || (rres < 0 && errno == EINTR));
+	if (rres < 0 && errno != EAGAIN && errno != EWOULDBLOCK)
+	    ETHR_FATAL_ERROR__(errno);
+
+	/*
+	 * Need to verify that state is still off
+	 * after cleaning the pipe...
+	 */
+	if (val == ETHR_EVENT_OFF_WAITER_SELECT__) {
+	    val = ethr_atomic32_read(&e->state);
+	    if (val == ETHR_EVENT_ON__)
+		goto return_event_on;
+	}
+	else {
+	    ethr_sint32_t act;
+	    act = ethr_atomic32_cmpxchg(&e->state,
+					ETHR_EVENT_OFF_WAITER_SELECT__,
+					val);
+	    if (act == ETHR_EVENT_ON__)
+		goto return_event_on;
+	    ETHR_ASSERT(act == val);
+	}
+
+	FD_ZERO(&rset);
+	FD_SET(fd, &rset);
+	FD_ZERO(&eset);
+	FD_SET(fd, &eset);
+
+	sres = select(fd + 1, &rset, NULL, &eset, &select_timeout);
+	if (sres == 0)
+	    res = ETIMEDOUT;
+	else {
+	    res = EINTR;
+	    if (sres < 0 && errno != EINTR)
+		ETHR_FATAL_ERROR__(errno);
+	    /* else:
+	     *   Event is *probably* set, but it can be a
+	     *   lingering writer. That is, it is important
+	     *   that we verify that it actually is set. If
+	     *   it isn't, return EINTR (spurious wakeup).
+	     */
+	}
 
 	val = ethr_atomic32_read(&e->state);
 	if (val == ETHR_EVENT_ON__)
-	    break;
+	    goto return_event_on;
 
-	res = pthread_cond_wait(&e->cnd, &e->mtx);
-	if (res == EINTR)
-	    break;
-	if (res != 0)
-	    ETHR_FATAL_ERROR__(res);
     }
 
-    ulres = pthread_mutex_unlock(&e->mtx);
-    if (ulres != 0)
-	ETHR_FATAL_ERROR__(ulres);
+    return res;
+
+return_event_on:
+
+    ETHR_MEMBAR(ETHR_LoadLoad|ETHR_LoadStore);
 
-    return res; /* 0 || EINTR */
+    return 0;
 }
 
 #else
@@ -215,11 +510,23 @@ ethr_event_set(ethr_event *e)
 int
 ethr_event_wait(ethr_event *e)
 {
-    return wait__(e, 0);
+    return wait__(e, 0, -1);
 }
 
 int
 ethr_event_swait(ethr_event *e, int spincount)
 {
-    return wait__(e, spincount);
+    return wait__(e, spincount, -1);
+}
+
+int
+ethr_event_twait(ethr_event *e, ethr_sint64_t timeout)
+{
+    return wait__(e, 0, timeout);
+}
+
+int
+ethr_event_stwait(ethr_event *e, int spincount, ethr_sint64_t timeout)
+{
+    return wait__(e, spincount, timeout);
 }
diff --git a/erts/lib_src/pthread/ethread.c b/erts/lib_src/pthread/ethread.c
index 79784c5b84..c0b1dad0b6 100644
--- a/erts/lib_src/pthread/ethread.c
+++ b/erts/lib_src/pthread/ethread.c
@@ -42,6 +42,7 @@
 #include <sys/types.h>
 #include <unistd.h>
 #include <signal.h>
+#include <string.h>
 
 #include <limits.h>
 
@@ -49,6 +50,8 @@
 #define ETHREAD_IMPL__
 
 #include "ethread.h"
+#undef ETHR_INCLUDE_MONOTONIC_CLOCK__
+#define ETHR_INCLUDE_MONOTONIC_CLOCK__
 #include "ethr_internal.h"
 
 #ifndef ETHR_HAVE_ETHREAD_DEFINES
@@ -77,6 +80,8 @@ typedef struct {
     void *(*thr_func)(void *);
     void *arg;
     void *prep_func_res;
+    char *name;
+    char name_buff[16];
 } ethr_thr_wrap_data__;
 
 static void *thr_wrapper(void *vtwd)
@@ -98,6 +103,8 @@ static void *thr_wrapper(void *vtwd)
 
     tsep = twd->tse; /* We aren't allowed to follow twd after
 			result has been set! */
+    if (twd->name)
+        ethr_setname(twd->name);
 
     ethr_atomic32_set(&twd->result, result);
 
@@ -232,6 +239,10 @@ ethr_x86_cpuid__(int *eax, int *ebx, int *ecx, int *edx)
 
 #endif /* ETHR_X86_RUNTIME_CONF__ */
 
+#ifdef ETHR_HAVE_ETHR_GET_MONOTONIC_TIME
+static void init_get_monotonic_time(void);
+#endif
+
 /*
  * --------------------------------------------------------------------------
  * Exported functions
@@ -254,6 +265,10 @@ ethr_init(ethr_init_data *id)
 	goto error;
 #endif
 
+#ifdef ETHR_HAVE_ETHR_GET_MONOTONIC_TIME
+    init_get_monotonic_time();
+#endif
+
     res = ethr_init_common__(id);
     if (res != 0)
 	goto error;
@@ -315,6 +330,12 @@ ethr_thr_create(ethr_tid *tid, void * (*func)(void *), void *arg,
     twd.thr_func = func;
     twd.arg = arg;
 
+    if (opts && opts->name) {
+        snprintf(twd.name_buff, 16, "%s", opts->name);
+	twd.name = twd.name_buff;
+    } else
+        twd.name = NULL;
+
     res = pthread_attr_init(&attr);
     if (res != 0)
 	return res;
@@ -445,6 +466,30 @@ ethr_self(void)
 }
 
 int
+ethr_getname(ethr_tid tid, char *buf, size_t len)
+{
+#if defined(ETHR_HAVE_PTHREAD_GETNAME_NP_3)
+    return pthread_getname_np((pthread_t) tid, buf, len);
+#elif defined(ETHR_HAVE_PTHREAD_GETNAME_NP_2)
+    return pthread_getname_np((pthread_t) tid, buf);
+#else
+    return ENOSYS;
+#endif
+}
+
+void
+ethr_setname(char *name)
+{
+#if defined(ETHR_HAVE_PTHREAD_SETNAME_NP_2) 
+    pthread_setname_np(ethr_self(), name);
+#elif defined(ETHR_HAVE_PTHREAD_SET_NAME_NP_2)
+    pthread_set_name_np(ethr_self(), name);
+#elif defined(ETHR_HAVE_PTHREAD_SETNAME_NP_1)
+    pthread_setname_np(name);
+#endif
+}
+
+int
 ethr_equal_tids(ethr_tid tid1, ethr_tid tid2)
 {
     return pthread_equal((pthread_t) tid1, (pthread_t) tid2);
@@ -565,8 +610,157 @@ int ethr_sigwait(const sigset_t *set, int *sig)
     return 0;
 }
 
+int ethr_kill(const ethr_tid tid, const int sig)
+{
+#if ETHR_XCHK
+    if (ethr_not_inited__) {
+	ETHR_ASSERT(0);
+	return EACCES;
+    }
+#endif
+    return pthread_kill((const pthread_t)tid, sig);
+}
+
 #endif /* #if ETHR_HAVE_ETHR_SIG_FUNCS */
 
+#ifdef ETHR_HAVE_ETHR_GET_MONOTONIC_TIME
+
+static int broken_get_monotonic_time;
+
+#if defined(ETHR_HAVE_CLOCK_GETTIME_MONOTONIC)
+#  ifndef ETHR_MONOTONIC_CLOCK_ID
+#    error ETHR_MONOTONIC_CLOCK_ID should have been defined
+#  endif
+
+ethr_sint64_t
+ethr_get_monotonic_time(void)
+{
+    ethr_sint64_t time;
+    struct timespec ts;
+
+    if (broken_get_monotonic_time)
+	return (ethr_sint64_t) 0;
+
+    if (0 != clock_gettime(ETHR_MONOTONIC_CLOCK_ID, &ts))
+	ETHR_FATAL_ERROR__(errno);
+
+    time = (ethr_sint64_t) ts.tv_sec;
+    time *= (ethr_sint64_t) 1000*1000*1000;
+    time += (ethr_sint64_t) ts.tv_nsec;
+    return time;
+}
+
+#elif defined(ETHR_HAVE_MACH_CLOCK_GET_TIME)
+#  ifndef ETHR_MONOTONIC_CLOCK_ID
+#    error ETHR_MONOTONIC_CLOCK_ID should have been defined
+#  endif
+
+ethr_sint64_t
+ethr_get_monotonic_time(void)
+{
+    ethr_sint64_t time;
+    kern_return_t res;
+    clock_serv_t clk_srv;
+    mach_timespec_t time_spec;
+
+    if (broken_get_monotonic_time)
+	return (ethr_sint64_t) 0;
+    
+    errno = EFAULT;
+    host_get_clock_service(mach_host_self(),
+			   ETHR_MONOTONIC_CLOCK_ID,
+			   &clk_srv);
+    res = clock_get_time(clk_srv, &time_spec);
+    if (res != KERN_SUCCESS)
+	ETHR_FATAL_ERROR__(errno);
+    mach_port_deallocate(mach_task_self(), clk_srv);
+
+    time = (ethr_sint64_t) time_spec.tv_sec;
+    time *= (ethr_sint64_t) 1000*1000*1000;
+    time += (ethr_sint64_t) time_spec.tv_nsec;
+    return time;
+}
+
+#elif defined(ETHR_HAVE_GETHRTIME)
+
+ethr_sint64_t
+ethr_get_monotonic_time(void)
+{
+    if (broken_get_monotonic_time)
+	return (ethr_sint64_t) 0;
+    return (ethr_sint64_t) gethrtime();
+}
+
+#else
+#error missing monotonic clock
+#endif
+
+int
+ethr_get_monotonic_time_is_broken(void)
+{
+    return broken_get_monotonic_time;
+}
+
+#include <string.h>
+#include <ctype.h>
+#include <sys/utsname.h>
+
+static void
+init_get_monotonic_time(void)
+{
+    struct utsname uts;
+    int vsn[3];
+    int i;
+    char *c;
+
+    broken_get_monotonic_time = 0;
+    
+    (void) uname(&uts);
+    
+    for (c = uts.sysname; *c; c++) {
+	if (isupper((int) *c))
+	    *c = tolower((int) *c);
+    }
+
+    c = uts.release;
+    for (i = 0; i < sizeof(vsn)/sizeof(int); i++) {
+	if (!isdigit((int) *c))
+	    vsn[i] = 0;
+	else {
+	    char *c2 = c;
+	    do {
+		c2++;
+	    } while (isdigit((int) *c2));
+	    *c2 = '\0';
+	    vsn[i] = atoi(c);
+	    c = c2;
+	    c++;
+	}
+    }
+
+    if (strcmp("linux", uts.sysname) == 0) {
+	if (vsn[0] < 2
+	    || (vsn[0] == 2 && vsn[1] < 6)
+	    || (vsn[0] == 2 && vsn[1] == 6 && vsn[2] < 33)) {
+	    broken_get_monotonic_time = 1;
+	}
+    }
+    else if (strcmp("sunos", uts.sysname) == 0) {
+	if ((vsn[0] < 5
+	     || (vsn[0] == 5 && vsn[1] < 8))
+#if defined(HAVE_SYSCONF) && defined(_SC_NPROCESSORS_CONF)
+	    && sysconf(_SC_NPROCESSORS_CONF) > 1
+#endif
+	    ) {
+	    broken_get_monotonic_time = 1;
+	}
+    }
+
+}
+			
+
+#endif /* ETHR_HAVE_ETHR_GET_MONOTONIC_TIME */
+
 ETHR_IMPL_NORETURN__
 ethr_abort__(void)
 {
diff --git a/erts/lib_src/win/ethr_event.c b/erts/lib_src/win/ethr_event.c
index bc2f635c26..a0d506356d 100644
--- a/erts/lib_src/win/ethr_event.c
+++ b/erts/lib_src/win/ethr_event.c
@@ -25,9 +25,16 @@
 #define ETHR_EVENT_IMPL__
 
 #include "ethread.h"
+#include "ethr_internal.h"
 
 /* --- Windows implementation of thread events ------------------------------ */
 
+void
+ethr_init_event__(void)
+{
+
+}
+
 int
 ethr_event_init(ethr_event *e)
 {
@@ -58,11 +65,29 @@ ethr_event_reset(ethr_event *e)
 }
 
 static ETHR_INLINE int
-wait(ethr_event *e, int spincount)
+wait(ethr_event *e, int spincount, ethr_sint64_t timeout)
 {
-    DWORD code;
+    DWORD code, tmo;
     int sc, res, until_yield = ETHR_YIELD_AFTER_BUSY_LOOPS;
 
+    if (timeout < 0)
+	tmo = INFINITE;
+    else if (timeout == 0) {
+	ethr_sint32_t state = ethr_atomic32_read(&e->state);
+	if (state == ETHR_EVENT_ON__) {
+	    ETHR_MEMBAR(ETHR_LoadLoad|ETHR_LoadStore);
+	    return 0;
+	}
+	return ETIMEDOUT;
+    }	    
+    else {
+	/*
+	 * Timeout in nano-seconds, but we can only
+	 * wait for milli-seconds...
+	 */
+	tmo = (DWORD) (timeout - 1) / (1000*1000) + 1;
+    }
+
     if (spincount < 0)
 	ETHR_FATAL_ERROR__(EINVAL);
 
@@ -72,8 +97,10 @@ wait(ethr_event *e, int spincount)
 	ethr_sint32_t state;
 	while (1) {
 	    state = ethr_atomic32_read(&e->state);
-	    if (state == ETHR_EVENT_ON__)
+	    if (state == ETHR_EVENT_ON__) {
+		ETHR_MEMBAR(ETHR_LoadLoad|ETHR_LoadStore);
 		return 0;
+	    }
 	    if (sc == 0)
 		break;
 	    sc--;
@@ -95,7 +122,9 @@ wait(ethr_event *e, int spincount)
 	    ETHR_ASSERT(state == ETHR_EVENT_OFF__);
 	}
 
-	code = WaitForSingleObject(e->handle, INFINITE);
+	code = WaitForSingleObject(e->handle, tmo);
+        if (code == WAIT_TIMEOUT)
+            return ETIMEDOUT;
 	if (code != WAIT_OBJECT_0)
 	    ETHR_FATAL_ERROR__(ethr_win_get_errno__());
     }
@@ -105,11 +134,23 @@ wait(ethr_event *e, int spincount)
 int
 ethr_event_wait(ethr_event *e)
 {
-    return wait(e, 0);
+    return wait(e, 0, -1);
 }
 
 int
 ethr_event_swait(ethr_event *e, int spincount)
 {
-    return wait(e, spincount);
+    return wait(e, spincount, -1);
+}
+
+int
+ethr_event_twait(ethr_event *e, ethr_sint64_t timeout)
+{
+    return wait(e, 0, timeout);
+}
+
+int
+ethr_event_stwait(ethr_event *e, int spincount, ethr_sint64_t timeout)
+{
+    return wait(e, spincount, timeout);
 }
diff --git a/erts/lib_src/win/ethread.c b/erts/lib_src/win/ethread.c
index 14d0b6deff..fe5d4a327f 100644
--- a/erts/lib_src/win/ethread.c
+++ b/erts/lib_src/win/ethread.c
@@ -508,6 +508,19 @@ ethr_self(void)
     return *tid;
 }
 
+/* getname and setname are not available on windows */
+int
+ethr_getname(ethr_tid tid, char *buf, size_t len)
+{
+    return ENOSYS;
+}
+
+void
+ethr_setname(char *name)
+{
+    return;
+}
+
 int
 ethr_equal_tids(ethr_tid tid1, ethr_tid tid2)
 {
diff --git a/erts/preloaded/ebin/erl_prim_loader.beam b/erts/preloaded/ebin/erl_prim_loader.beam
index 10138cab22..df12c6f8e0 100644
--- a/erts/preloaded/ebin/erl_prim_loader.beam
+++ b/erts/preloaded/ebin/erl_prim_loader.beam
diff --git a/erts/preloaded/ebin/erlang.beam b/erts/preloaded/ebin/erlang.beam
index 7a3d94dd16..c0fca6aafa 100644
--- a/erts/preloaded/ebin/erlang.beam
+++ b/erts/preloaded/ebin/erlang.beam
diff --git a/erts/preloaded/ebin/erts_internal.beam b/erts/preloaded/ebin/erts_internal.beam
index 9b364d8b21..0e0811af3f 100644
--- a/erts/preloaded/ebin/erts_internal.beam
+++ b/erts/preloaded/ebin/erts_internal.beam
diff --git a/erts/preloaded/ebin/init.beam b/erts/preloaded/ebin/init.beam
index a190129b2c..851513b2e9 100644
--- a/erts/preloaded/ebin/init.beam
+++ b/erts/preloaded/ebin/init.beam
diff --git a/erts/preloaded/ebin/otp_ring0.beam b/erts/preloaded/ebin/otp_ring0.beam
index 621f036f33..33c112f4de 100644
--- a/erts/preloaded/ebin/otp_ring0.beam
+++ b/erts/preloaded/ebin/otp_ring0.beam
diff --git a/erts/preloaded/ebin/prim_eval.beam b/erts/preloaded/ebin/prim_eval.beam
index 6695f4cd15..ebca6e7eea 100644
--- a/erts/preloaded/ebin/prim_eval.beam
+++ b/erts/preloaded/ebin/prim_eval.beam
diff --git a/erts/preloaded/ebin/prim_file.beam b/erts/preloaded/ebin/prim_file.beam
index 5e9230826d..e8817d183e 100644
--- a/erts/preloaded/ebin/prim_file.beam
+++ b/erts/preloaded/ebin/prim_file.beam
diff --git a/erts/preloaded/ebin/prim_inet.beam b/erts/preloaded/ebin/prim_inet.beam
index 83230d42ae..6729f06b79 100644
--- a/erts/preloaded/ebin/prim_inet.beam
+++ b/erts/preloaded/ebin/prim_inet.beam
diff --git a/erts/preloaded/ebin/prim_zip.beam b/erts/preloaded/ebin/prim_zip.beam
index b3abba3223..969239be98 100644
--- a/erts/preloaded/ebin/prim_zip.beam
+++ b/erts/preloaded/ebin/prim_zip.beam
diff --git a/erts/preloaded/ebin/zlib.beam b/erts/preloaded/ebin/zlib.beam
index 7006764d96..281f668f8c 100644
--- a/erts/preloaded/ebin/zlib.beam
+++ b/erts/preloaded/ebin/zlib.beam
diff --git a/erts/preloaded/src/erlang.erl b/erts/preloaded/src/erlang.erl
index 611a568014..ea8a911a2c 100644
--- a/erts/preloaded/src/erlang.erl
+++ b/erts/preloaded/src/erlang.erl
@@ -38,7 +38,6 @@
 
 -export([integer_to_list/2]).
 -export([integer_to_binary/2]).
--export([flush_monitor_message/2]).
 -export([set_cpu_topology/1, format_cpu_topology/1]).
 -export([await_proc_exit/3]).
 -export([memory/0, memory/1]).
@@ -48,7 +47,7 @@
 	 await_sched_wall_time_modifications/2,
 	 gather_gc_info_result/1]).
 
--deprecated([hash/2]).
+-deprecated([hash/2, now/0]).
 
 %% Get rid of autoimports of spawn to avoid clashes with ourselves.
 -compile({no_auto_import,[spawn_link/1]}).
@@ -58,12 +57,21 @@
 -compile({no_auto_import,[spawn_opt/5]}).
 
 -export_type([timestamp/0]).
+-export_type([time_unit/0]).
 
 -type ext_binary() :: binary().
 -type timestamp() :: {MegaSecs :: non_neg_integer(),
                       Secs :: non_neg_integer(),
                       MicroSecs :: non_neg_integer()}.
 
+-type time_unit() ::
+	pos_integer()
+      | 'seconds'
+      | 'milli_seconds'
+      | 'micro_seconds'
+      | 'nano_seconds'
+      | 'native'.
+
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %% Native code BIF stubs and their types
 %% (BIF's actually implemented in this module goes last in the file)
@@ -81,7 +89,7 @@
 -export([binary_to_list/3, binary_to_term/1, binary_to_term/2]).
 -export([bit_size/1, bitsize/1, bitstring_to_list/1]).
 -export([bump_reductions/1, byte_size/1, call_on_load_function/1]).
--export([cancel_timer/1, check_old_code/1, check_process_code/2,
+-export([cancel_timer/1, cancel_timer/2, check_old_code/1, check_process_code/2,
 	 check_process_code/3, crc32/1]).
 -export([crc32/2, crc32_combine/3, date/0, decode_packet/3]).
 -export([delete_element/2]).
@@ -93,7 +101,7 @@
 	 float_to_list/1, float_to_list/2]).
 -export([fun_info/2, fun_info_mfa/1, fun_to_list/1, function_exported/3]).
 -export([garbage_collect/0, garbage_collect/1, garbage_collect/2]).
--export([garbage_collect_message_area/0, get/0, get/1, get_keys/1]).
+-export([garbage_collect_message_area/0, get/0, get/1, get_keys/0, get_keys/1]).
 -export([get_module_info/1, get_stacktrace/0, group_leader/0]).
 -export([group_leader/2, halt/0, halt/1, halt/2, hash/2, hibernate/3]).
 -export([insert_element/3]).
@@ -104,7 +112,8 @@
 -export([list_to_bitstring/1, list_to_existing_atom/1, list_to_float/1]).
 -export([list_to_integer/1, list_to_integer/2]).
 -export([list_to_pid/1, list_to_tuple/1, loaded/0]).
--export([localtime/0, make_ref/0, map_size/1, match_spec_test/3, md5/1, md5_final/1]).
+-export([localtime/0, make_ref/0]).
+-export([map_size/1, match_spec_test/3, md5/1, md5_final/1]).
 -export([md5_init/0, md5_update/2, module_loaded/1, monitor/2]).
 -export([monitor_node/2, monitor_node/3, nif_error/1, nif_error/2]).
 -export([node/0, node/1, now/0, phash/2, phash2/1, phash2/2]).
@@ -112,13 +121,19 @@
 -export([port_connect/2, port_control/3, port_get_data/1]).
 -export([port_set_data/2, port_to_list/1, ports/0]).
 -export([posixtime_to_universaltime/1, pre_loaded/0, prepare_loading/2]).
+-export([monotonic_time/0, monotonic_time/1]).
+-export([system_time/0, system_time/1]).
+-export([convert_time_unit/3]).
+-export([unique_integer/0, unique_integer/1]).
+-export([time_offset/0, time_offset/1, timestamp/0]).
 -export([process_display/2]).
 -export([process_flag/3, process_info/1, processes/0, purge_module/1]).
--export([put/2, raise/3, read_timer/1, ref_to_list/1, register/2]).
--export([registered/0, resume_process/1, round/1, self/0, send_after/3]).
+-export([put/2, raise/3, read_timer/1, read_timer/2, ref_to_list/1, register/2]).
+-export([send_after/3, send_after/4, start_timer/3, start_timer/4]).
+-export([registered/0, resume_process/1, round/1, self/0]).
 -export([seq_trace/2, seq_trace_print/1, seq_trace_print/2, setnode/2]).
 -export([setnode/3, size/1, spawn/3, spawn_link/3, split_binary/2]).
--export([start_timer/3, suspend_process/2, system_monitor/0]).
+-export([suspend_process/2, system_monitor/0]).
 -export([system_monitor/1, system_monitor/2, system_profile/0]).
 -export([system_profile/2, throw/1, time/0, trace/3, trace_delivered/1]).
 -export([trace_info/2, trunc/1, tuple_size/1, universaltime/0]).
@@ -410,12 +425,27 @@ call_on_load_function(_P1) ->
     erlang:nif_error(undefined).
 
 %% cancel_timer/1
--spec erlang:cancel_timer(TimerRef) -> Time | false when
+-spec erlang:cancel_timer(TimerRef) -> Result when
       TimerRef :: reference(),
-      Time :: non_neg_integer().
+      Time :: non_neg_integer(),
+      Result :: Time | false.
+
 cancel_timer(_TimerRef) ->
     erlang:nif_error(undefined).
 
+%% cancel_timer/2
+-spec erlang:cancel_timer(TimerRef, Options) -> Result | ok when
+      TimerRef :: reference(),
+      Async :: boolean(),
+      Info :: boolean(),
+      Option :: {async, Async} | {info, Info},
+      Options :: [Option],
+      Time :: non_neg_integer(),
+      Result :: Time | false.
+
+cancel_timer(_TimerRef, _Options) ->
+    erlang:nif_error(undefined).
+
 %% check_old_code/1
 -spec check_old_code(Module) -> boolean() when
       Module :: module().
@@ -931,6 +961,12 @@ get() ->
 get(_Key) ->
     erlang:nif_error(undefined).
 
+%% get_keys/0
+-spec get_keys() -> [Key] when
+      Key :: term().
+get_keys() ->
+    erlang:nif_error(undefined).
+
 %% get_keys/1
 -spec get_keys(Val) -> [Key] when
       Val :: term(),
@@ -1184,13 +1220,18 @@ md5_update(_Context, _Data) ->
 module_loaded(_Module) ->
     erlang:nif_error(undefined).
 
+-type registered_name() :: atom().
+
+-type registered_process_identifier() :: registered_name() | {registered_name(), node()}.
+
+-type monitor_process_identifier() :: pid() | registered_process_identifier().
+
 %% monitor/2
--spec monitor(Type, Item) -> MonitorRef when
-      Type :: process,
-      Item :: pid() | RegName | {RegName, Node},
-      RegName :: module(),
-      Node :: node(),
+-spec monitor(process, monitor_process_identifier()) -> MonitorRef when
+      MonitorRef :: reference();
+	     (time_offset, clock_service) -> MonitorRef when
       MonitorRef :: reference().
+
 monitor(_Type, _Item) ->
     erlang:nif_error(undefined).
 
@@ -1292,6 +1333,90 @@ ports() ->
 posixtime_to_universaltime(_P1) ->
     erlang:nif_error(undefined).
 
+-spec erlang:unique_integer(ModifierList) -> integer() when
+      ModifierList :: [Modifier],
+      Modifier :: positive | monotonic.
+
+unique_integer(_ModifierList) ->
+    erlang:nif_error(undefined).
+
+-spec erlang:unique_integer() -> integer().
+
+unique_integer() ->
+    erlang:nif_error(undefined).
+
+-spec erlang:monotonic_time() -> integer().
+
+monotonic_time() ->
+    erlang:nif_error(undefined).
+
+-spec erlang:monotonic_time(Unit) -> integer() when
+      Unit :: time_unit().
+
+monotonic_time(_Unit) ->
+    erlang:nif_error(undefined).
+
+-spec erlang:system_time() -> integer().
+
+system_time() ->
+    erlang:nif_error(undefined).
+
+-spec erlang:system_time(Unit) -> integer() when
+      Unit :: time_unit().
+
+system_time(_Unit) ->
+    erlang:nif_error(undefined).
+
+-spec erlang:convert_time_unit(Time, FromUnit, ToUnit) -> ConvertedTime when
+      Time :: integer(),
+      ConvertedTime :: integer(),
+      FromUnit :: time_unit(),
+      ToUnit :: time_unit().
+
+convert_time_unit(Time, FromUnit, ToUnit) ->
+    try
+	FU = case FromUnit of
+		 native -> erts_internal:time_unit();
+		 nano_seconds -> 1000*1000*1000;
+		 micro_seconds -> 1000*1000;
+		 milli_seconds -> 1000;
+		 seconds -> 1;
+		 _ when FromUnit > 0 -> FromUnit
+	     end,
+	TU = case ToUnit of
+		 native -> erts_internal:time_unit();
+		 nano_seconds -> 1000*1000*1000;
+		 micro_seconds -> 1000*1000;
+		 milli_seconds -> 1000;
+		 seconds -> 1;
+		 _ when ToUnit > 0 -> ToUnit
+	     end,
+	case Time < 0 of
+	    true -> TU*Time - (FU - 1);
+	    false -> TU*Time
+	end div FU
+    catch
+	_ : _ ->
+	    erlang:error(badarg, [Time, FromUnit, ToUnit])
+    end.
+
+-spec erlang:time_offset() -> integer().
+
+time_offset() ->
+    erlang:nif_error(undefined).
+
+-spec erlang:time_offset(Unit) -> integer() when
+      Unit :: time_unit().
+
+time_offset(_Unit) ->
+    erlang:nif_error(undefined).
+
+-spec erlang:timestamp() -> Timestamp when
+      Timestamp :: timestamp().
+
+timestamp() ->
+    erlang:nif_error(undefined).
+
 %% prepare_loading/2
 -spec erlang:prepare_loading(Module, Code) -> PreparedCode | {error, Reason} when
       Module :: module(),
@@ -1357,11 +1482,26 @@ raise(_Class, _Reason, _Stacktrace) ->
     erlang:nif_error(undefined).
 
 %% read_timer/1
--spec erlang:read_timer(TimerRef) -> non_neg_integer() | false when
-      TimerRef :: reference().
+-spec erlang:read_timer(TimerRef) -> Result when
+      TimerRef :: reference(),
+      Time :: non_neg_integer(),
+      Result :: Time | false.
+
 read_timer(_TimerRef) ->
     erlang:nif_error(undefined).
 
+%% read_timer/2
+-spec erlang:read_timer(TimerRef, Options) -> Result | ok when
+      TimerRef :: reference(),
+      Async :: boolean(),
+      Option :: {async, Async},
+      Options :: [Option],
+      Time :: non_neg_integer(),
+      Result :: Time | false.
+
+read_timer(_TimerRef, _Options) ->
+    erlang:nif_error(undefined).
+
 %% ref_to_list/1
 -spec erlang:ref_to_list(Ref) -> string() when
       Ref :: reference().
@@ -1406,9 +1546,23 @@ self() ->
       Dest :: pid() | atom(),
       Msg :: term(),
       TimerRef :: reference().
+
 send_after(_Time, _Dest, _Msg) ->
     erlang:nif_error(undefined).
 
+%% send_after/4
+-spec erlang:send_after(Time, Dest, Msg, Options) -> TimerRef when
+      Time :: integer(),
+      Dest :: pid() | atom(),
+      Msg :: term(),
+      Options :: [Option],
+      Abs :: boolean(),
+      Option :: {abs, Abs}, %% | {accessor, Accessor} undocumented feature for now,
+      TimerRef :: reference().
+
+send_after(_Time, _Dest, _Msg, _Options) ->
+    erlang:nif_error(undefined).
+
 %% seq_trace/2
 -spec erlang:seq_trace(P1, P2) -> seq_trace_info_returns() | {term(), term(), term(), term(), term()} when
       P1 :: atom(),
@@ -1480,9 +1634,23 @@ split_binary(_Bin, _Pos) ->
       Dest :: pid() | atom(),
       Msg :: term(),
       TimerRef :: reference().
+
 start_timer(_Time, _Dest, _Msg) ->
     erlang:nif_error(undefined).
 
+%% start_timer/4
+-spec erlang:start_timer(Time, Dest, Msg, Options) -> TimerRef when
+      Time :: integer(),
+      Dest :: pid() | atom(),
+      Msg :: term(),
+      Options :: [Option],
+      Abs :: boolean(),
+      Option :: {abs, Abs}, %% | {accessor, Accessor} undocumented feature for now,
+      TimerRef :: reference().
+
+start_timer(_Time, _Dest, _Msg, _Options) ->
+    erlang:nif_error(undefined).
+
 %% suspend_process/2
 -spec erlang:suspend_process(Suspendee, OptList) -> boolean() when
       Suspendee :: pid(),
@@ -1651,7 +1819,7 @@ element(_N, _Tuple) ->
 %% Not documented
 -spec erlang:get_module_info(Module, Item) -> ModuleInfo when
       Module :: atom(),
-      Item :: module | imports | exports | functions | attributes | compile | native_addresses,
+      Item :: module | exports | functions | attributes | compile | native_addresses | md5,
       ModuleInfo :: atom() | [] | [{atom(), arity()}] | [{atom(), term()}] | [{atom(), arity(), integer()}].
 get_module_info(_Module, _Item) ->
     erlang:nif_error(undefined).
@@ -2118,6 +2286,8 @@ subtract(_,_) ->
                         (trace_control_word, TCW) -> OldTCW when
       TCW :: non_neg_integer(),
       OldTCW :: non_neg_integer();
+			(time_offset, finalize) -> OldState when
+      OldState :: preliminary | final | volatile;
                         %% These are deliberately not documented
 			(internal_cpu_topology, term()) -> term();
                         (sequential_tracer, pid() | port() | false) -> pid() | port() | false;
@@ -2254,6 +2424,8 @@ tuple_to_list(_Tuple) ->
          (multi_scheduling_blockers) -> [PID :: pid()];
          (nif_version) -> string();
          (otp_release) -> string();
+         (os_monotonic_time_source) -> [{atom(),term()}];
+         (os_system_time_source) -> [{atom(),term()}];
          (port_count) -> non_neg_integer();
          (port_limit) -> pos_integer();
          (process_count) -> pos_integer();
@@ -2271,10 +2443,14 @@ tuple_to_list(_Tuple) ->
          (scheduler_id) -> SchedulerId :: pos_integer();
          (schedulers | schedulers_online) -> pos_integer();
          (smp_support) -> boolean();
+         (start_time) -> integer();
          (system_version) -> string();
          (system_architecture) -> string();
          (threads) -> boolean();
          (thread_pool_size) -> non_neg_integer();
+         (time_correction) -> true | false;
+         (time_offset) -> preliminary | final | volatile;
+         (time_warp_mode) -> no_time_warp | single_time_warp | multi_time_warp;
          (tolerant_timeofday) -> enabled | disabled;
          (trace_control_word) -> non_neg_integer();
          (update_cpu_info) -> changed | unchanged;
@@ -3041,16 +3217,6 @@ integer_to_binary(I0, Base, R0) ->
         true -> integer_to_binary(I1, Base, R1)
     end.
 
-%% erlang:flush_monitor_message/2 is for internal use only!
-%%
-%% erlang:demonitor(Ref, [flush]) traps to
-%% erlang:flush_monitor_message(Ref, Res) when
-%% it needs to flush a monitor message.
-flush_monitor_message(Ref, Res) when erlang:is_reference(Ref),
-                                     erlang:is_atom(Res) ->
-    receive {_, Ref, _, _, _} -> ok after 0 -> ok end,
-    Res.
-
 -record(cpu, {node = -1,
 	      processor = -1,
 	      processor_node = -1,
@@ -3434,7 +3600,11 @@ blocks_size([], Acc) ->
 get_fix_proc([{ProcType, A1, U1}| Rest], {A0, U0}) when ProcType == proc;
 							ProcType == monitor_sh;
 							ProcType == nlink_sh;
-							ProcType == msg_ref ->
+							ProcType == msg_ref;
+							ProcType == ll_ptimer;
+							ProcType == hl_ptimer;
+							ProcType == bif_timer;
+							ProcType == accessor_bif_timer ->
     get_fix_proc(Rest, {A0+A1, U0+U1});
 get_fix_proc([_|Rest], Acc) ->
     get_fix_proc(Rest, Acc);
diff --git a/erts/preloaded/src/erts.app.src b/erts/preloaded/src/erts.app.src
index 345a6ae3be..cf9a06599a 100644
--- a/erts/preloaded/src/erts.app.src
+++ b/erts/preloaded/src/erts.app.src
@@ -35,7 +35,7 @@
 	{registered, []},
 	{applications, []},
 	{env, []},
-	{runtime_dependencies, ["stdlib-2.0", "kernel-3.0", "sasl-2.4"]}
+	{runtime_dependencies, ["stdlib-2.5", "kernel-4.0", "sasl-2.4"]}
     ]}.
 
 %% vim: ft=erlang
diff --git a/erts/preloaded/src/erts_internal.erl b/erts/preloaded/src/erts_internal.erl
index 2c5bd82cf0..65a1f1ed3a 100644
--- a/erts/preloaded/src/erts_internal.erl
+++ b/erts/preloaded/src/erts_internal.erl
@@ -30,7 +30,7 @@
 
 -export([await_port_send_result/3]).
 -export([cmp_term/2]).
--export([map_to_tuple_keys/1]).
+-export([map_to_tuple_keys/1, map_type/1, map_hashmap_children/1]).
 -export([port_command/3, port_connect/2, port_close/1,
 	 port_control/3, port_call/3, port_info/1, port_info/2]).
 
@@ -38,6 +38,14 @@
 
 -export([check_process_code/2]).
 
+-export([flush_monitor_messages/3]).
+
+-export([await_result/1]).
+
+-export([time_unit/0]).
+
+-export([is_system_process/1]).
+
 %%
 %% Await result of send to port
 %%
@@ -49,6 +57,16 @@ await_port_send_result(Ref, Busy, Ok) ->
     end.
 
 %%
+%% Await result...
+%%
+
+await_result(Ref) when is_reference(Ref) ->
+    receive
+	{Ref, Result} ->
+	    Result
+    end.
+
+%%
 %% Statically linked port NIFs
 %%
 
@@ -178,3 +196,52 @@ cmp_term(_A,_B) ->
 
 map_to_tuple_keys(_M) ->
     erlang:nif_error(undefined).
+
+%% return the internal map type
+-spec map_type(M) -> Type when
+    M :: map(),
+    Type :: 'flatmap' | 'hashmap' | 'hashmap_node'.
+
+map_type(_M) ->
+    erlang:nif_error(undefined).
+
+%% return the internal hashmap sub-nodes from
+%% a hashmap node
+-spec map_hashmap_children(M) -> Children when
+    M :: map(), %% hashmap node
+    Children :: [map() | nonempty_improper_list(term(),term())].
+
+map_hashmap_children(_M) ->
+    erlang:nif_error(undefined).
+
+-spec erts_internal:flush_monitor_messages(Ref, Multi, Res) -> term() when
+      Ref :: reference(),
+      Multi :: boolean(),
+      Res :: term().
+
+%% erlang:demonitor(Ref, [flush]) traps to
+%% erts_internal:flush_monitor_messages(Ref, Res) when
+%% it needs to flush monitor messages.
+flush_monitor_messages(Ref, Multi, Res) when is_reference(Ref) ->
+    receive
+	{_, Ref, _, _, _} ->
+	    case Multi of
+		false ->
+		    Res;
+		_ ->
+		    flush_monitor_messages(Ref, Multi, Res)
+	    end
+    after 0 ->
+	    Res
+    end.
+
+-spec erts_internal:time_unit() -> pos_integer().
+
+time_unit() ->
+    erlang:nif_error(undefined).
+
+-spec erts_internal:is_system_process(Pid) -> boolean() when
+      Pid :: pid().
+
+is_system_process(_Pid) ->
+    erlang:nif_error(undefined).
diff --git a/erts/preloaded/src/init.erl b/erts/preloaded/src/init.erl
index e95e11b3e6..bb56c9ff73 100644
--- a/erts/preloaded/src/init.erl
+++ b/erts/preloaded/src/init.erl
@@ -591,12 +591,9 @@ kill_all_pids(Heart) ->
 	    kill_all_pids(Heart)  % Continue until all are really killed.
     end.
     
-%% All except zombies.
-alive_processes() ->
-    [P || P <- processes(), erlang:is_process_alive(P)].
-
+%% All except system processes.
 get_pids(Heart) ->
-    Pids = alive_processes(),
+    Pids = [P || P <- processes(), not erts_internal:is_system_process(P)],
     delete(Heart,self(),Pids).
 
 delete(Heart,Init,[Heart|Pids]) -> delete(Heart,Init,Pids);
diff --git a/erts/preloaded/src/prim_inet.erl b/erts/preloaded/src/prim_inet.erl
index 79ff013c77..622e1be869 100644
--- a/erts/preloaded/src/prim_inet.erl
+++ b/erts/preloaded/src/prim_inet.erl
@@ -127,37 +127,18 @@ drv2protocol(_)           -> undefined.
 %% TODO: shutdown equivalent for SCTP
 %%
 shutdown(S, read) when is_port(S) ->
-    shutdown_2(S, 0);
+    shutdown_1(S, 0);
 shutdown(S, write) when is_port(S) ->
     shutdown_1(S, 1);
 shutdown(S, read_write) when is_port(S) ->
     shutdown_1(S, 2).
 
 shutdown_1(S, How) ->
-    case subscribe(S, [subs_empty_out_q]) of
-	{ok,[{subs_empty_out_q,N}]} when N > 0 ->
-	    shutdown_pend_loop(S, N);   %% wait for pending output to be sent
-	_Other -> ok
-    end,
-    shutdown_2(S, How).
-
-shutdown_2(S, How) ->
     case ctl_cmd(S, ?TCP_REQ_SHUTDOWN, [How]) of
 	{ok, []} -> ok;
 	{error,_}=Error -> Error
     end.
 
-shutdown_pend_loop(S, N0) ->
-    receive
-	{empty_out_q,S} -> ok
-    after ?INET_CLOSE_TIMEOUT ->
-	    case getstat(S, [send_pend]) of
-                {ok,[{send_pend,N0}]} -> ok;
-                {ok,[{send_pend,N}]} -> shutdown_pend_loop(S, N);
-		_ -> ok
-	    end
-    end.
-
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %%
 %% CLOSE(insock()) -> ok
diff --git a/erts/preloaded/src/zlib.erl b/erts/preloaded/src/zlib.erl
index df7b2e6198..5d9f90ec58 100644
--- a/erts/preloaded/src/zlib.erl
+++ b/erts/preloaded/src/zlib.erl
@@ -24,13 +24,14 @@
 	 deflate/2,deflate/3,deflateEnd/1,
 	 inflateInit/1,inflateInit/2,inflateSetDictionary/2,
 	 inflateSync/1,inflateReset/1,inflate/2,inflateEnd/1,
+	 inflateChunk/1, inflateChunk/2,
 	 setBufSize/2,getBufSize/1,
 	 crc32/1,crc32/2,crc32/3,adler32/2,adler32/3,getQSize/1,
 	 crc32_combine/4,adler32_combine/4,
 	 compress/1,uncompress/1,zip/1,unzip/1,
 	 gzip/1,gunzip/1]).
 
--export_type([zstream/0]).
+-export_type([zstream/0, zlevel/0, zwindowbits/0, zmemlevel/0, zstrategy/0]).
 
 %% flush argument encoding
 -define(Z_NO_FLUSH,      0).
@@ -100,6 +101,7 @@
 -define(INFLATE_RESET,   12).
 -define(INFLATE_END,     13).
 -define(INFLATE,         14).
+-define(INFLATE_CHUNK,   25).
 
 -define(CRC32_0,         15).
 -define(CRC32_1,         16).
@@ -124,7 +126,7 @@
 -type zlevel()      :: 'none' | 'default' | 'best_compression' | 'best_speed' 
                      | 0..9.
 -type zmethod()     :: 'deflated'.
--type zwindowbits() :: -15..-9 | 9..47.
+-type zwindowbits() :: -15..-8 | 8..47.
 -type zmemlevel()   :: 1..9.
 -type zstrategy()   :: 'default' | 'filtered' | 'huffman_only' | 'rle'.
 
@@ -263,6 +265,39 @@ inflate(Z, Data) ->
 	    erlang:error(badarg) 
     end.
 
+-spec inflateChunk(Z, Data) -> Decompressed | {more, Decompressed} when
+      Z :: zstream(),
+      Data :: iodata(),
+      Decompressed :: iolist().
+inflateChunk(Z, Data) ->
+    try port_command(Z, Data) of
+	true ->
+        inflateChunk(Z)
+    catch
+	error:_Err ->
+	    flush(Z),
+	    erlang:error(badarg)
+    end.
+
+-spec inflateChunk(Z) -> Decompressed | {more, Decompressed} when
+      Z :: zstream(),
+      Decompressed :: iolist().
+inflateChunk(Z) ->
+    Status = call(Z, ?INFLATE_CHUNK, []),
+    Data = receive
+	{Z, {data, Bin}} ->
+	    Bin
+    after 0 ->
+	    []
+    end,
+
+    case Status of
+        Good when (Good == ok) orelse (Good == stream_end) ->
+            Data;
+        inflate_has_more ->
+            {more, Data}
+    end.
+
 -spec inflateEnd(Z) -> 'ok' when
       Z :: zstream().
 inflateEnd(Z) ->
@@ -496,8 +531,8 @@ arg_method(_) -> erlang:error(badarg).
 
 -spec arg_bitsz(zwindowbits()) -> zwindowbits().
 arg_bitsz(Bits) when is_integer(Bits) andalso
-		     ((8 < Bits andalso Bits < 48) orelse
-		      (-15 =< Bits andalso Bits < -8)) ->
+		     ((8 =< Bits andalso Bits < 48) orelse
+		      (-15 =< Bits andalso Bits =< -8)) ->
     Bits;
 arg_bitsz(_) -> erlang:error(badarg).
 
@@ -514,7 +549,9 @@ call(Z, Cmd, Arg) ->
 	[2,A,B,C,D] ->
 	    (A bsl 24)+(B bsl 16)+(C bsl 8)+D;
 	[3,A,B,C,D] ->
-	    erlang:error({need_dictionary,(A bsl 24)+(B bsl 16)+(C bsl 8)+D})
+	    erlang:error({need_dictionary,(A bsl 24)+(B bsl 16)+(C bsl 8)+D});
+	[4, _, _, _, _] ->
+	    inflate_has_more
     catch 
 	error:badarg -> %% Rethrow loses port_control from stacktrace.
 	    erlang:error(badarg)
diff --git a/erts/test/erlc_SUITE_data/src/start_ok.script b/erts/test/erlc_SUITE_data/src/start_ok.script
index 4cd89f0439..7ef97dc3f3 100644
--- a/erts/test/erlc_SUITE_data/src/start_ok.script
+++ b/erts/test/erlc_SUITE_data/src/start_ok.script
@@ -52,7 +52,6 @@
 	     shell_default,
 	     timer,
 	     gen_fsm,
-	     pg,
 	     unix,
 	     dict,
 	     pool,
@@ -156,7 +155,6 @@
                                         {timer,1},
                                         {gen_fsm,1},
                                         {io_lib_pretty,1},
-                                        {pg,1},
                                         {slave,1},
                                         {unix,1},
                                         {dict,1},
diff --git a/erts/test/erlexec_SUITE.erl b/erts/test/erlexec_SUITE.erl
index f5ea8f160a..07966192c5 100644
--- a/erts/test/erlexec_SUITE.erl
+++ b/erts/test/erlexec_SUITE.erl
@@ -462,13 +462,10 @@ split_emu_clt([A|As], Emu, Misc, Extra, extra = Type) ->
     
 
 get_nodename(T) ->
-    {A, B, C} = now(),
     atom_to_list(T)
 	++ "-"
 	++ atom_to_list(?MODULE)
 	++ "-"
-	++ integer_to_list(A)
+	++ integer_to_list(erlang:system_time(seconds))
 	++ "-"
-	++ integer_to_list(B)
-	++ "-"
-	++ integer_to_list(C).
+	++ integer_to_list(erlang:unique_integer([positive])).
diff --git a/erts/test/otp_SUITE.erl b/erts/test/otp_SUITE.erl
index 2969383d66..c416e031c2 100644
--- a/erts/test/otp_SUITE.erl
+++ b/erts/test/otp_SUITE.erl
@@ -23,7 +23,7 @@
 	 init_per_suite/1,end_per_suite/1]).
 -export([undefined_functions/1,deprecated_not_in_obsolete/1,
 	 obsolete_but_not_deprecated/1,call_to_deprecated/1,
-         call_to_size_1/1,strong_components/1,
+         call_to_size_1/1,call_to_now_0/1,strong_components/1,
 	 erl_file_encoding/1,xml_file_encoding/1,runtime_dependencies/1]).
 
 -include_lib("test_server/include/test_server.hrl").
@@ -35,7 +35,7 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
 all() -> 
     [undefined_functions, deprecated_not_in_obsolete,
      obsolete_but_not_deprecated, call_to_deprecated,
-     call_to_size_1, strong_components,
+     call_to_size_1, call_to_now_0, strong_components,
      erl_file_encoding, xml_file_encoding,
      runtime_dependencies].
 
@@ -287,48 +287,58 @@ call_to_deprecated(Config) when is_list(Config) ->
     {comment,integer_to_list(length(DeprecatedCalls))++" calls to deprecated functions"}.
 
 call_to_size_1(Config) when is_list(Config) ->
-    Server = ?config(xref_server, Config),
-
     %% Applications that do not call erlang:size/1:
     Apps = [asn1,compiler,debugger,kernel,observer,parsetools,
 	    runtime_tools,stdlib,tools,webtool],
+    not_recommended_calls(Config, Apps, {erlang,size,1}).
+
+call_to_now_0(Config) when is_list(Config) ->
+    %% Applications that do not call erlang:now/1:
+    Apps = [asn1,common_test,compiler,debugger,dialyzer,
+	    gs,kernel,mnesia,observer,parsetools,reltool,
+	    runtime_tools,sasl,stdlib,syntax_tools,
+	    test_server,tools,webtool],
+    not_recommended_calls(Config, Apps, {erlang,now,0}).
+
+not_recommended_calls(Config, Apps, MFA) ->
+    Server = ?config(xref_server, Config),
 
-    Fs = [{erlang,size,1}],
+    Fs = [MFA],
 
     Q1 = io_lib:format("E || ~p : Fun", [Fs]),
-    ?line {ok,AllCallsToSize1} = xref:q(Server, lists:flatten(Q1)),
+    {ok,AllCallsToMFA} = xref:q(Server, lists:flatten(Q1)),
 
     Q2 = io_lib:format("E | ~p : App || ~p : Fun", [Apps,Fs]),
-    ?line {ok,CallsToSize1} = xref:q(Server, lists:flatten(Q2)),
+    {ok,CallsToMFA} = xref:q(Server, lists:flatten(Q2)),
 
-    case CallsToSize1 of
+    case CallsToMFA of
 	[] -> 
             ok;
 	_ ->
-            io:format("These calls cause an error:~n"),
+            io:format("These calls are not allowed:\n"),
 	    foreach(fun ({MFA1,MFA2}) ->
-			    io:format("~s calls soon to be deprecated ~s",
+			    io:format("~s calls non-recommended ~s",
 				      [format_mfa(MFA1),format_mfa(MFA2)])
-		    end, CallsToSize1)
+		    end, CallsToMFA)
     end,
 
-    %% Enumerate calls to erlang:size/1 from other applications than
-    %% the ones known not to call erlang:size/1:
-    case AllCallsToSize1--CallsToSize1 of
+    %% Enumerate calls to MFA from other applications than
+    %% the ones known not to call MFA:
+    case AllCallsToMFA--CallsToMFA of
         [] ->
             ok;
         Calls ->
-            io:format("~n~nThese calls do not cause an error (yet):~n"),
+            io:format("~n~nThese calls are allowed for now:\n"),
             foreach(fun ({MFA1,MFA2}) ->
-                            io:format("~s calls soon to be deprecated ~s",
+                            io:format("~s calls non-recommended ~s",
                                       [format_mfa(MFA1),format_mfa(MFA2)])
                     end, Calls)
     end,
-    case CallsToSize1 of
+    case CallsToMFA of
 	[] -> 
             ok;
 	_ ->
-	    ?line ?t:fail({length(CallsToSize1),calls_to_size_1})
+	    ?t:fail({length(CallsToMFA),calls_to_size_1})
     end.
 
 strong_components(Config) when is_list(Config) ->
diff --git a/erts/test/upgrade_SUITE.erl b/erts/test/upgrade_SUITE.erl
index 217056971e..4858bfdfb7 100644
--- a/erts/test/upgrade_SUITE.erl
+++ b/erts/test/upgrade_SUITE.erl
@@ -238,7 +238,10 @@ do_upgrade(FromVsn,FromApps,ToRel,ToApps,InstallDir) ->
 
     [{"OTP upgrade test",FromVsn,_,permanent}] =
 	rpc:call(Node,release_handler,which_releases,[]),
-    {ok,ToVsn} = rpc:call(Node,release_handler,unpack_release,[ToRel]),
+    ToRelName = filename:basename(ToRel),
+    copy_file(ToRel++".tar.gz",
+	      filename:join([InstallDir,releases,ToRelName++".tar.gz"])),
+    {ok,ToVsn} = rpc:call(Node,release_handler,unpack_release,[ToRelName]),
     [{"OTP upgrade test",ToVsn,_,unpacked},
      {"OTP upgrade test",FromVsn,_,permanent}] =
 	rpc:call(Node,release_handler,which_releases,[]),
diff --git a/erts/vsn.mk b/erts/vsn.mk
index 9e5aa999e6..ab98bd4a17 100644
--- a/erts/vsn.mk
+++ b/erts/vsn.mk
@@ -17,7 +17,7 @@
 # %CopyrightEnd%
 # 
 
-VSN = 6.4.1
+VSN = 7.0
 
 # Port number 4365 in 4.2
 # Port number 4366 in 4.3
diff --git a/lib/.gitignore b/lib/.gitignore
index 4125111ebd..58c49adce0 100644
--- a/lib/.gitignore
+++ b/lib/.gitignore
@@ -546,6 +546,8 @@ snmp/doc/intex.html
 /syntax_tools/doc/src/erl_syntax.xml
 /syntax_tools/doc/src/erl_syntax_lib.xml
 /syntax_tools/doc/src/erl_tidy.xml
+/syntax_tools/doc/src/merl.xml
+/syntax_tools/doc/src/merl_transform.xml
 /syntax_tools/doc/src/igor.xml
 /syntax_tools/doc/src/prettypr.xml
 
diff --git a/lib/asn1/doc/src/Makefile b/lib/asn1/doc/src/Makefile
index 3b3e1bd8f9..f26508295c 100644
--- a/lib/asn1/doc/src/Makefile
+++ b/lib/asn1/doc/src/Makefile
@@ -48,7 +48,9 @@ XML_HTML_FILE =  \
 	notes_history.xml
 
 XML_CHAPTER_FILES = \
-	asn1_ug.xml \
+	asn1_introduction.xml \
+	asn1_getting_started.xml \
+	asn1_overview.xml \
 	asn1_spec.xml \
 	notes.xml
 
diff --git a/lib/asn1/doc/src/asn1_getting_started.xml b/lib/asn1/doc/src/asn1_getting_started.xml
new file mode 100644
index 0000000000..1a9c279191
--- /dev/null
+++ b/lib/asn1/doc/src/asn1_getting_started.xml
@@ -0,0 +1,1290 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!DOCTYPE chapter SYSTEM "chapter.dtd">
+
+<chapter>
+  <header>
+    <copyright>
+      <year>1997</year><year>2013</year>
+      <holder>Ericsson AB. All Rights Reserved.</holder>
+    </copyright>
+    <legalnotice>
+      The contents of this file are subject to the Erlang Public License,
+      Version 1.1, (the "License"); you may not use this file except in
+      compliance with the License. You should have received a copy of the
+      Erlang Public License along with this software. If not, it can be
+      retrieved online at http://www.erlang.org/.
+    
+      Software distributed under the License is distributed on an "AS IS"
+      basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+      the License for the specific language governing rights and limitations
+      under the License.
+    
+    </legalnotice>
+
+    <title>Getting Started</title>
+    <prepared>Kenneth Lundin</prepared>
+    <docno></docno>
+    <date>1999-03-25</date>
+    <rev>D</rev>
+    <file>asn1_getting_started.xml</file>
+  </header>
+
+  <section>
+    <title>Example</title>
+      <p>The following example demonstrates the basic functionality used to
+      run the Erlang ASN.1 compiler.</p>
+      <p>Create a file named <c>People.asn</c> containing the following:</p>
+      <pre>
+People DEFINITIONS AUTOMATIC TAGS ::=
+BEGIN
+  Person ::= SEQUENCE {
+    name PrintableString,
+    location INTEGER {home(0),field(1),roving(2)},
+    age INTEGER OPTIONAL
+  }
+END      </pre>
+      <p>This file must be compiled before it can be used.
+        The ASN.1 compiler checks that the syntax is correct and that the
+        text represents proper ASN.1 code before generating an abstract
+        syntax tree. The code-generator then uses the abstract syntax
+        tree to generate code.</p>
+      <p>The generated Erlang files are placed in the current directory or
+        in the directory specified with option <c>{outdir,Dir}</c>.</p>
+      <p>The following shows how the compiler
+        can be called from the  Erlang shell:</p>
+
+      <pre>
+1><input> asn1ct:compile("People", [ber]).</input>
+ok
+2>      </pre>
+
+      <p>Option <c>verbose</c> can be added to get information
+      about the generated files:</p>
+      <pre>
+2><input> asn1ct:compile("People", [ber,verbose]).</input>
+Erlang ASN.1 compiling "People.asn" 
+--{generated,"People.asn1db"}--
+--{generated,"People.hrl"}--
+--{generated,"People.erl"}--
+ok
+3>      </pre>
+
+      <p>ASN.1 module <c>People</c> is now accepted and the
+      abstract syntax tree is saved in file <c>People.asn1db</c>.
+      The generated Erlang code is compiled using the Erlang compiler
+      and loaded into the Erlang runtime system. There is now an API
+      for <c>encode/2</c> and <c>decode/2</c> in module
+      <c>People</c>, which is called like:<br></br>
+      <c><![CDATA['People':encode(<Type name>, <Value>)]]></c>
+      <br></br>
+        or<br></br>
+<c><![CDATA['People':decode(<Type name>, <Value>)]]></c></p>
+
+      <p>Assume that there is a network
+        application that receives instances of the ASN.1 defined
+        type <c>Person</c>, modifies, and sends them back again:</p>
+
+      <code type="none">
+receive
+   {Port,{data,Bytes}} ->
+       case 'People':decode('Person',Bytes) of
+           {ok,P} ->
+               {ok,Answer} = 'People':encode('Person',mk_answer(P)),
+               Port ! {self(),{command,Answer}};
+           {error,Reason} ->
+               exit({error,Reason})
+       end
+    end,      </code>
+      <p>In this example, a series of bytes is received from an
+        external source and the bytes are then decoded into a valid
+        Erlang term. This was achieved with the call
+        <c>'People':decode('Person',Bytes)</c>, which returned
+        an Erlang value of the ASN.1 type <c>Person</c>. Then an answer was
+        constructed  and encoded using
+        <c>'People':encode('Person',Answer)</c>, which takes an
+        instance of a defined ASN.1 type and transforms it to a
+        binary according to the BER or PER encoding rules.</p>
+        <p>The encoder and decoder can also be run from the shell:</p>
+      <pre>
+2> <input>Rockstar = {'Person',"Some Name",roving,50}.</input>
+{'Person',"Some Name",roving,50}
+3> <input>{ok,Bin} = 'People':encode('Person',Rockstar).</input>
+{ok,&lt;&lt;243,17,19,9,83,111,109,101,32,78,97,109,101,2,1,2,
+      2,1,50&gt;&gt;}
+4> <input>{ok,Person} = 'People':decode('Person',Bin).</input>
+{ok,{'Person',"Some Name",roving,50}}
+5>      </pre>
+
+    <section>
+      <title>Module Dependencies</title>
+      <p>It is common that ASN.1 modules import defined types, values, and
+        other entities from another ASN.1 module.</p>
+      <p>Earlier versions of the ASN.1 compiler required that modules
+        that were imported from had to be compiled before the module
+        that imported. This caused problems when ASN.1 modules had circular
+        dependencies.</p>
+      <p>Referenced modules are now parsed when the compiler finds an
+        entity that is imported. No code is generated for
+        the referenced module. However, the compiled modules rely on
+        that the referenced modules are also compiled.</p>
+    </section>
+  </section>
+
+  <section>
+    <title>ASN.1 Application User Interface</title>
+    <p>The <c>ASN.1</c> application provides the following two
+    separate user interfaces:</p>
+    <list type="bulleted">
+      <item>
+        <p>The module <c>asn1ct</c>, which provides the compile-time functions
+          (including the compiler)</p>
+      </item>
+      <item>
+        <p>The module <c>asn1rt_nif</c>, which provides the runtime functions
+         for the ASN.1 decoder for the BER back end</p>
+      </item>
+    </list>
+    <p>The reason for this division of the interfaces into compile-time
+      and runtime
+      is that only runtime modules (<c>asn1rt*</c>) need to be loaded in
+      an embedded system. 
+      </p>
+
+    <section>
+      <title>Compile-Time Functions</title>
+      <p>The ASN.1 compiler can be started directly from the command line
+        by the <c>erlc</c> program. This is convenient when compiling
+        many ASN.1 files from the command line or when using Makefiles.
+        Some examples of how the <c>erlc</c> command can be used to start
+        the ASN.1 compiler:</p>
+      <pre>
+erlc Person.asn
+erlc -bper Person.asn
+erlc -bber ../Example.asn
+erlc -o ../asnfiles -I ../asnfiles -I /usr/local/standards/asn1 Person.asn</pre>
+      <p>Useful options for the ASN.1 compiler:</p>
+      <taglist>
+        <tag><c>-b[ber | per | uper]</c></tag>
+        <item>
+          <p>Choice of encoding rules. If omitted, <c>ber</c> is the
+          default.</p>
+        </item>
+        <tag><c>-o OutDirectory</c></tag>
+        <item>
+          <p>Where to put the generated files. Default is the current
+            directory.</p>
+        </item>
+        <tag><c>-I IncludeDir</c></tag>
+        <item>
+          <p>Where to search for <c>.asn1db</c> files and ASN.1
+            source specs to resolve references to other
+            modules. This option can be repeated many times if there
+            are several places to search in. The compiler
+            searches the current directory first.</p>
+        </item>
+        <tag><c>+der</c></tag>
+        <item>
+          <p>DER encoding rule. Only when using option <c>-ber</c>.</p>
+        </item>
+        <tag><c>+asn1config</c></tag>
+        <item>
+          <p>This functionality works together with option
+            <c>ber</c>. It enables the specialized decodes, see Section
+            <seealso marker="asn1_spec">Specialized Decode</seealso>.</p>
+        </item>
+        <tag><c>+undec_rest</c></tag>
+        <item>
+          <p>A buffer that holds a message being decoded can also have
+          trailing bytes. If those trailing bytes are important, they
+          can be returned along with the decoded value by compiling
+          the ASN.1 specification with option <c>+undec_rest</c>.
+          The return value from the decoder is
+          <c>{ok,Value,Rest}</c> where <c>Rest</c> is a binary
+          containing the trailing bytes.</p>
+        </item>
+        <tag><c>+'Any Erlc Option'</c></tag>
+        <item>
+          <p>Any option can be added to the Erlang compiler when
+            compiling the generated Erlang files. Any option
+            unrecognized by the ASN.1 compiler is passed to the
+            Erlang compiler.</p>
+        </item>
+      </taglist>
+      <p>For a complete description of <c>erlc</c>, see
+        ERTS Reference Manual.</p>
+      <p>The compiler and other compile-time functions can also be started
+        from the Erlang shell. Here follows a brief
+        description of the primary functions. For a
+        complete description of each function, see module <c>asn1ct</c> in
+        the <seealso marker="asn1ct">ASN.1 Reference Manual</seealso>.</p>
+      <p>The compiler is started by <c>asn1ct:compile/1</c> with
+        default options, or <c>asn1ct:compile/2</c> if explicit options
+        are given.</p>
+      <p>Example:</p>
+      <pre>
+asn1ct:compile("H323-MESSAGES.asn1").      </pre>
+      <p>This equals:</p>
+      <pre>
+asn1ct:compile("H323-MESSAGES.asn1",[ber]).      </pre>
+      <p>If PER encoding is wanted:</p>
+      <pre>
+asn1ct:compile("H323-MESSAGES.asn1",[per]).      </pre>
+      <p>The generic encode and decode functions can be called
+      as follows:</p>
+      <pre>
+'H323-MESSAGES':encode('SomeChoiceType',{call,&lt;&lt;"octetstring"&gt;&gt;}).
+'H323-MESSAGES':decode('SomeChoiceType',Bytes).      </pre>
+    </section>
+
+    <section>
+      <title>Runtime Functions</title>
+      <p>When an ASN.1 specification is compiled with option <c>ber</c>,
+      the <c>asn1rt_nif</c> module and the NIF library in
+      <c>asn1/priv_dir</c> are needed at runtime.</p>
+      <p>By calling function <c>info/0</c> in a generated module, you
+      get information about which compiler options were used.</p>
+    </section>
+
+    <section>
+      <title>Errors</title>
+      <p>Errors detected at
+        compile-time are displayed on the screen together with line
+        numbers indicating where in the source file the respective error
+        was detected. If no errors are found, an Erlang ASN.1 module is
+        created.</p>
+      <p>The runtime encoders and decoders execute within a catch and
+      return <c>{ok, Data}</c> or
+        <c>{error, {asn1, Description}}</c> where
+        <c>Description</c> is
+        an Erlang term describing the error.</p>
+    </section>
+  </section>
+
+  <section>
+    <marker id="inlineExamples"></marker>
+    <title>Multi-File Compilation</title>
+    <p>There are various reasons for using multi-file compilation:</p>
+    <list type="bulleted">
+      <item>To choose the name for the generated module, for
+      example, because you need to compile the same specs for
+      different encoding rules.</item>
+      <item>You want only one resulting module.</item>
+    </list>
+    <p>Specify which ASN.1 specs to compile in a module with extension
+      <c>.set.asn</c>. Choose a module name and provide the
+      names of the ASN.1 specs. For example, if you have the specs
+      <c>File1.asn</c>, <c>File2.asn</c>, and <c>File3.asn</c>, your
+      module <c>MyModule.set.asn</c> looks as follows:</p>
+    <pre>
+File1.asn
+File2.asn
+File3.asn    </pre>
+    <p>If you compile with the following, the result is one merged
+    module <c>MyModule.erl</c> with the generated code from the three
+    ASN.1 specs:</p>
+    <code type="none">
+~> erlc MyModule.set.asn    </code>
+  </section>
+
+  <section>
+    <title>Remark about Tags</title>
+
+    <p>Tags used to be important for all users of ASN.1, because it
+    was necessary to add tags manually to certain constructs in order
+    for the ASN.1 specification to be valid. Example of
+    an old-style specification:</p>
+
+    <pre>
+Tags DEFINITIONS ::=
+BEGIN
+  Afters ::= CHOICE { cheese [0] IA5String,
+                      dessert [1] IA5String }
+END </pre>
+
+    <p>Without the tags (the numbers in square brackets) the ASN.1
+    compiler refused to compile the file.</p>
+
+    <p>In 1994 the global tagging mode <c>AUTOMATIC TAGS</c> was introduced.
+    By putting <c>AUTOMATIC TAGS</c> in the module header, the ASN.1
+    compiler automatically adds tags when needed. The following is the
+    same specification in <c>AUTOMATIC TAGS</c> mode:</p>
+
+    <pre>
+Tags DEFINITIONS AUTOMATIC TAGS ::=
+BEGIN
+  Afters ::= CHOICE { cheese IA5String,
+                      dessert IA5String }
+END </pre>
+
+    <p>Tags are not mentioned any more in this User's Guide.</p>
+  </section>
+
+  <section>
+    <marker id="ASN1Types"></marker>
+    <title>ASN.1 Types</title>
+    <p>This section describes the ASN.1 types including their
+      functionality, purpose, and how values are assigned in Erlang.
+      </p>
+    <p>ASN.1 has both primitive and constructed types:</p>
+    <p></p>
+    <table>
+      <row>
+        <cell align="left" valign="middle"><em>Primitive Types</em></cell>
+        <cell align="left" valign="middle"><em>Constructed Types</em></cell>
+      </row>
+      <row>
+        <cell align="left" valign="middle"><seealso marker="#BOOLEAN">BOOLEAN</seealso></cell>
+        <cell align="left" valign="middle"><seealso marker="#SEQUENCE">SEQUENCE</seealso></cell>
+      </row>
+      <row>
+        <cell align="left" valign="middle"><seealso marker="#INTEGER">INTEGER</seealso></cell>
+        <cell align="left" valign="middle"><seealso marker="#SET">SET</seealso></cell>
+      </row>
+      <row>
+        <cell align="left" valign="middle"><seealso marker="#REAL">REAL</seealso></cell>
+        <cell align="left" valign="middle"><seealso marker="#CHOICE">CHOICE</seealso></cell>
+      </row>
+      <row>
+        <cell align="left" valign="middle"><seealso marker="#NULL">NULL</seealso></cell>
+        <cell align="left" valign="middle"><seealso marker="#SOF">SET OF and SEQUENCE OF</seealso></cell>
+      </row>
+      <row>
+        <cell align="left" valign="middle"><seealso marker="#ENUMERATED">ENUMERATED</seealso></cell>
+        <cell align="left" valign="middle"><seealso marker="#ANY">ANY</seealso></cell>
+      </row>
+      <row>
+        <cell align="left" valign="middle"><seealso marker="#BIT STRING">BIT STRING</seealso></cell>
+        <cell align="left" valign="middle"><seealso marker="#ANY">ANY DEFINED BY</seealso></cell>
+      </row>
+      <row>
+        <cell align="left" valign="middle"><seealso marker="#OCTET STRING">OCTET STRING</seealso></cell>
+        <cell align="left" valign="middle"><seealso marker="#NegotiationTypes">EXTERNAL</seealso></cell>
+      </row>
+      <row>
+        <cell align="left" valign="middle"><seealso marker="#Character Strings">Character Strings</seealso></cell>
+        <cell align="left" valign="middle"><seealso marker="#NegotiationTypes">EMBEDDED PDV</seealso></cell>
+      </row>
+      <row>
+        <cell align="left" valign="middle"><seealso marker="#OBJECT IDENTIFIER">OBJECT IDENTIFIER</seealso></cell>
+        <cell align="left" valign="middle"><seealso marker="#NegotiationTypes">CHARACTER STRING</seealso></cell>
+      </row>
+      <row>
+        <cell align="left" valign="middle"><seealso marker="#Object Descriptor">Object Descriptor</seealso></cell>
+        <cell align="left" valign="middle"></cell>
+      </row>
+      <row>
+        <cell align="left" valign="middle"><seealso marker="#The TIME types">TIME Types</seealso></cell>
+        <cell align="left" valign="middle"></cell>
+      </row>
+      <tcaption>Supported ASN.1 Types</tcaption>
+    </table>
+    <marker id="TypeNameValue"></marker>
+    <note>
+      <p>The values of each ASN.1 type have their own representation in Erlang, as
+        described in the following sections. Users must provide
+        these values for encoding according to the representation, as shown in the
+        following example:</p>
+    </note>
+    <pre>
+Operational ::= BOOLEAN --ASN.1 definition    </pre>
+    <p>In Erlang code it can look as follows:</p>
+    <pre>
+Val = true,
+{ok,Bytes} = MyModule:encode('Operational', Val),    </pre>
+
+    <section>
+      <marker id="BOOLEAN"></marker>
+      <title>BOOLEAN</title>
+      <p>Booleans in ASN.1 express values that can be either
+        <c>TRUE</c> or <c>FALSE</c>.
+        The meanings assigned to <c>TRUE</c> and <c>FALSE</c> are outside the scope
+        of this text.</p>
+      <p>In ASN.1 it is possible to have:</p>
+      <pre>
+Operational ::= BOOLEAN</pre>
+      <p>Assigning a value to type <c>Operational</c> in Erlang is possible by
+        using the following Erlang code:</p>
+      <code type="erl">
+Myvar1 = true,</code>
+      <p>Thus, in Erlang the atoms <c>true</c> and <c>false</c> are used
+        to encode a boolean value.</p>
+    </section>
+
+    <section>
+      <marker id="INTEGER"></marker>
+      <title>INTEGER</title>
+      <p>ASN.1 itself specifies indefinitely large integers. Erlang
+        systems with version 4.3 and higher support very large
+        integers, in practice indefinitely large integers.</p>
+      <p>The concept of subtyping can be applied to integers and
+        to other ASN.1 types. The details of subtyping are not
+        explained here; for more information, see X.680. Various
+        syntaxes are allowed when defining a type as an integer:</p>
+      <pre>
+T1 ::= INTEGER
+T2 ::= INTEGER (-2..7)
+T3 ::= INTEGER (0..MAX)
+T4 ::= INTEGER (0&lt;..MAX)
+T5 ::= INTEGER (MIN&lt;..-99)
+T6 ::= INTEGER {red(0),blue(1),white(2)}</pre>
+      <p>The Erlang representation of an ASN.1 <c>INTEGER</c> is an integer or
+        an atom if a <c>Named Number List</c> (see <c>T6</c> in the previous
+        list) is specified.</p>
+      <p>The following is an example of Erlang code that assigns values for the
+        types in the previous list:</p>
+      <pre>
+T1value = 0,
+T2value = 6,
+T6value1 = blue,
+T6value2 = 0,
+T6value3 = white</pre>
+      <p>These Erlang variables are now bound to valid instances of
+        ASN.1 defined types. This style of value can be passed directly
+        to the encoder for transformation into a series of bytes.</p>
+      <p>The decoder returns an atom if the value corresponds to a
+        symbol in the <c>Named Number List</c>.</p>
+    </section>
+
+    <section>
+      <marker id="REAL"></marker>
+      <title>REAL</title>
+      <p>The following ASN.1 type is used for real numbers:</p>
+      <pre>
+R1 ::= REAL</pre>
+      <p>It is assigned a value in Erlang as follows:</p>
+      <pre>
+R1value1 = "2.14",
+R1value2 = {256,10,-2},</pre>
+      <p>In the last line, notice that the tuple {256,10,-2} is the real number
+        2.56 in a special notation, which encodes faster than simply
+        stating the number as <c>"2.56"</c>. The arity three tuple is
+        <c>{Mantissa,Base,Exponent}</c>, that is, Mantissa * Base^Exponent.</p>
+    </section>
+
+    <section>
+      <marker id="NULL"></marker>
+      <title>NULL</title>
+      <p>The type <c>NULL</c> is suitable where supply and recognition of a value
+        is important but the actual value is not.</p>
+      <pre>
+Notype ::= NULL</pre>
+      <p>This type is assigned in Erlang as follows:</p>
+      <pre>
+N1 = 'NULL',</pre>
+      <p>The actual value is the quoted atom <c>'NULL'</c>.</p>
+    </section>
+
+    <section>
+      <marker id="ENUMERATED"></marker>
+      <title>ENUMERATED</title>
+      <p>The type <c>ENUMERATED</c> can be used when the value you want to
+        describe can only take one of a set of predefined values. Example:</p>
+      <pre>
+DaysOfTheWeek ::= ENUMERATED { 
+    sunday(1),monday(2),tuesday(3),
+    wednesday(4),thursday(5),friday(6),saturday(7) }</pre>
+      <p>For example, to assign a weekday value in Erlang, use the same atom
+        as in the <c>Enumerations</c> of the type definition:</p>
+      <pre>
+Day1 = saturday,</pre>
+      <p>The enumerated type is similar to an integer type, when
+        defined with a set of predefined values. The difference is that
+        an enumerated type can only have specified
+        values, whereas an integer can have any value.</p>
+    </section>
+
+    <section>
+      <marker id="BIT STRING"></marker>
+      <title>BIT STRING</title>
+      <p>The type <c>BIT STRING</c> can be used to model information that
+        is made up of arbitrary length series of bits. It is intended
+        to be used for selection of flags, not for binary files.</p>
+      <p>In ASN.1, <c>BIT STRING</c> definitions can look as follows:</p>
+      <pre>
+Bits1 ::= BIT STRING
+Bits2 ::= BIT STRING {foo(0),bar(1),gnu(2),gnome(3),punk(14)}</pre>
+      <p>The following two notations are available for representation of <c>BIT
+        STRING</c> values in Erlang and as input to the encode functions:</p>
+      <list type="ordered">
+        <item>A bitstring. By default, a <c>BIT STRING</c> with no
+         symbolic names is decoded to an Erlang bitstring.</item>
+        <item>A list of atoms corresponding to atoms in the <c>NamedBitList</c>
+         in the <c>BIT STRING</c> definition. A <c>BIT STRING</c> with symbolic
+         names is always decoded to the format shown in the following
+         example:</item>
+      </list>
+      <pre>
+Bits1Val1 = &lt;&lt;0:1,1:1,0:1,1:1,1:1&gt;&gt;,
+Bits2Val1 = [gnu,punk],
+Bits2Val2 = &lt;&lt;2#1110:4&gt;&gt;,
+Bits2Val3 = [bar,gnu,gnome],</pre>
+      <p><c>Bits2Val2</c> and <c>Bits2Val3</c> denote the same value.</p>
+      <p><c>Bits2Val1</c> is assigned symbolic values. The assignment means
+        that the bits corresponding to <c>gnu</c> and <c>punk</c>, that is, bits
+        2 and 14 are set to 1, and the rest are set to 0. The symbolic values
+        are shown as a list of values. If a named value, which is not
+        specified in the type definition, is shown, a runtime error occurs.</p>
+      <p><c>BIT STRING</c>s can also be subtyped with, for example, a <c>SIZE</c>
+        specification:</p>
+      <pre>
+Bits3 ::= BIT STRING (SIZE(0..31))      </pre>
+      <p>This means that no bit higher than 31 can be set.</p>
+
+      <section>
+	<title>Deprecated Representations for BIT STRING</title>
+	<p>In addition to the representations described earlier, the
+	following deprecated representations are available if the
+	specification has been compiled with option
+	<c>legacy_erlang_types</c>:</p>
+	<list type="ordered">
+	  <item>Aa a list of binary digits (0 or 1). This format is
+	  accepted as input to the encode functions, and a <c>BIT STRING</c>
+	  is decoded to this format if option
+	  <em>legacy_bit_string</em> is given.
+	  </item>
+	  <item>As <c>{Unused,Binary}</c> where <c>Unused</c> denotes
+	  how many trailing zero-bits 0-7 that are unused in the
+	  least significant byte in <c>Binary</c>. This format is
+	  accepted as input to the encode functions, and a <c>BIT
+	  STRING</c> is decoded to this format if
+	  <c>compact_bit_string</c> has been given.
+	  </item>
+	  <item>As a hexadecimal number (or an integer). Avoid this
+	  as it is easy to misinterpret a <c>BIT
+	  STRING</c> value in this format.
+	  </item>
+	</list>
+      </section>
+    </section>
+
+    <section>
+      <marker id="OCTET STRING"></marker>
+      <title>OCTET STRING</title>
+      <p><c>OCTET STRING</c> is the simplest of all ASN.1 types. <c>OCTET
+      STRING</c> only moves or transfers, for example, binary files or other
+      unstructured information complying with two rules: the
+      bytes consist of octets and encoding is not required.</p>
+      <p>It is possible to have the following ASN.1 type definitions:</p>
+      <pre>
+O1 ::= OCTET STRING
+O2 ::= OCTET STRING (SIZE(28))      </pre>
+      <p>With the following example assignments in Erlang:</p>
+      <pre>
+O1Val = &lt;&lt;17,13,19,20,0,0,255,254&gt;&gt;,
+O2Val = &lt;&lt;"must be exactly 28 chars...."&gt;&gt;,</pre>
+       <p>By default, an <c>OCTET STRING</c> is always represented as
+       an Erlang binary. If the specification has been compiled with
+       option <c>legacy_erlang_types</c>, the encode functions
+       accept both lists and binaries, and the decode functions
+       decode an <c>OCTET STRING</c> to a list.</p>
+    </section>
+
+    <section>
+      <marker id="Character Strings"></marker>
+      <title>Character Strings</title>
+      <p>ASN.1 supports a wide variety of character sets. The main difference
+        between an <c>OCTET STRING</c> and a character string is that the
+        <c>OCTET STRING</c> has no imposed semantics on the bytes delivered.</p>
+      <p>However, when using, for example, IA5String (which closely
+        resembles ASCII), byte 65 (in decimal
+        notation) <em>means</em> character 'A'.
+        </p>
+      <p>For example, if a defined type is to be a VideotexString and
+        an octet is received with the unsigned integer value <c>X</c>,
+        the octet is to be interpreted as specified in standard
+        ITU-T T.100, T.101. 
+        </p>
+      <p>The  ASN.1 to Erlang compiler
+        does not determine the correct interpretation of each BER
+        string octet value with different character strings. The
+        application is responsible for interpretation
+        of octets. Therefore, from the BER
+        string point of view, octets are very similar to
+        character strings and are compiled in the same way.
+        </p>
+      <p>When PER is
+        used, there is a significant difference in the encoding scheme
+        between <c>OCTET STRING</c>s and other strings. The constraints
+        specified for a type are especially important for PER, where
+        they affect the encoding.
+        </p>
+      <p>Examples:</p>
+      <pre>
+Digs ::= NumericString (SIZE(1..3))
+TextFile ::= IA5String (SIZE(0..64000))      </pre>
+      <p>The corresponding Erlang assignments:</p>
+      <pre>
+DigsVal1 = "456",
+DigsVal2 = "123",
+TextFileVal1 = "abc...xyz...",
+TextFileVal2 = [88,76,55,44,99,121 .......... a lot of characters here ....]</pre>
+      <p>The Erlang representation for "BMPString" and
+        "UniversalString" is either a list of ASCII values or a list
+        of quadruples. The quadruple representation associates to the
+        Unicode standard representation of characters. The ASCII
+        characters are all represented by quadruples beginning with
+        three zeros like {0,0,0,65} for character 'A'. When
+        decoding a value for these strings, the result is a list of
+        quadruples, or integers when the value is an ASCII character.</p>
+
+      <p>The following example shows how it works. Assume the following
+        specification is in file <c>PrimStrings.asn1</c>:</p>
+       <pre>
+PrimStrings DEFINITIONS AUTOMATIC TAGS ::=
+BEGIN
+   BMP ::= BMPString
+END    </pre>
+
+       <p>Encoding and decoding some strings:</p>
+
+      <pre>
+1> <input>asn1ct:compile('PrimStrings', [ber]).</input>
+ok
+2> <input>{ok,Bytes1} = 'PrimStrings':encode('BMP', [{0,0,53,53},{0,0,45,56}]).</input>
+{ok,&lt;&lt;30,4,53,54,45,56>>}
+3> <input>'PrimStrings':decode('BMP', Bytes1).</input>
+{ok,[{0,0,53,53},{0,0,45,56}]}
+4> <input>{ok,Bytes2} = 'PrimStrings':encode('BMP', [{0,0,53,53},{0,0,0,65}]).</input>
+{ok,&lt;&lt;30,4,53,53,0,65>>}
+5> <input>'PrimStrings':decode('BMP', Bytes2).</input>
+{ok,[{0,0,53,53},65]}
+6> <input>{ok,Bytes3} = 'PrimStrings':encode('BMP', "BMP string").</input>
+{ok,&lt;&lt;30,20,0,66,0,77,0,80,0,32,0,115,0,116,0,114,0,105,0,110,0,103>>}
+7> <input>'PrimStrings':decode('BMP', Bytes3).</input>
+{ok,"BMP string"}      </pre>
+
+      <p>Type UTF8String is represented as a UTF-8 encoded binary in
+      Erlang. Such binaries can be created directly using the binary syntax
+      or by converting from a list of Unicode code points using function
+      <c>unicode:characters_to_binary/1</c>.</p>
+
+      <p>The following shows examples of how UTF-8 encoded binaries can
+      be created and manipulated:</p>
+      <pre>
+1> <input>Gs = "Мой маленький Гном".</input>
+[1052,1086,1081,32,1084,1072,1083,1077,1085,1100,1082,1080,
+ 1081,32,1043,1085,1086,1084]
+2> <input>Gbin = unicode:characters_to_binary(Gs).</input>
+&lt;&lt;208,156,208,190,208,185,32,208,188,208,176,208,187,208,
+  181,208,189,209,140,208,186,208,184,208,185,32,208,147,
+  208,...>>
+3> <input>Gbin = &lt;&lt;"Мой маленький Гном"/utf8>>.</input>
+&lt;&lt;208,156,208,190,208,185,32,208,188,208,176,208,187,208,
+  181,208,189,209,140,208,186,208,184,208,185,32,208,147,
+  208,...>>
+4> <input>Gs = unicode:characters_to_list(Gbin).</input>
+[1052,1086,1081,32,1084,1072,1083,1077,1085,1100,1082,1080,
+ 1081,32,1043,1085,1086,1084]</pre>
+
+      <p>For details, see the <seealso marker="stdlib:unicode">unicode</seealso>
+      module in <c>stdlib</c>.</p>
+
+      <p>In the following example, this ASN.1 specification is used:</p>
+      <pre>
+UTF DEFINITIONS AUTOMATIC TAGS ::=
+BEGIN
+   UTF ::= UTF8String
+END   </pre>
+
+      <p>Encoding and decoding a string with Unicode characters:</p>
+
+      <pre>
+5> <input>asn1ct:compile('UTF', [ber]).</input>
+ok
+6> <input>{ok,Bytes1} = 'UTF':encode('UTF', &lt;&lt;"Гном"/utf8>>).</input>
+{ok,&lt;&lt;12,8,208,147,208,189,208,190,208,188>>}
+7> <input>{ok,Bin1} = 'UTF':decode('UTF', Bytes1).</input>
+{ok,&lt;&lt;208,147,208,189,208,190,208,188>>}
+8> <input>io:format("~ts\n", [Bin1]).</input>
+Гном
+ok
+9> <input>unicode:characters_to_list(Bin1).</input>
+[1043,1085,1086,1084]   </pre>
+    </section>
+
+    <section>
+      <marker id="OBJECT IDENTIFIER"></marker>
+      <title>OBJECT IDENTIFIER</title>
+      <p>The type <c>OBJECT IDENTIFIER</c> is used whenever a unique identity is
+        required. An ASN.1 module, a transfer syntax, and so on, is identified
+        with an <c>OBJECT IDENTIFIER</c>. Assume the following example:</p>
+      <pre>
+Oid ::= OBJECT IDENTIFIER</pre>
+      <p>Therefore, the following example is a valid Erlang instance of
+        type 'Oid':</p>
+      <pre>
+OidVal1 = {1,2,55},</pre>
+      <p>The <c>OBJECT IDENTIFIER</c> value is simply a tuple with the
+        consecutive values, which must be integers.
+        </p>
+      <p>The first value is limited to the values 0, 1, or 2. The
+        second value must be in the range 0..39 when the first value
+        is 0 or 1.
+        </p>
+      <p>The <c>OBJECT IDENTIFIER</c> is an important type and it is
+        widely used within different standards to identify various
+        objects uniquely. Dubuisson: ASN.1 - Communication Between
+        Heterogeneous Systems includes an
+        easy-to-understand description of the use of
+        <c>OBJECT IDENTIFIER</c>.</p>
+    </section>
+
+    <section>
+      <marker id="Object Descriptor"></marker>
+      <title>Object Descriptor</title>
+      <p>Values of this type can be assigned a value as an ordinary string
+      as follows:</p>
+
+      <pre>
+      "This is the value of an Object descriptor"</pre>
+    </section>
+
+    <section>
+      <marker id="The TIME types"></marker>
+      <title>TIME Types</title>
+      <p>Two time types are defined within ASN.1: Generalized
+        Time and Universal Time Coordinated (UTC). Both are assigned a
+        value as an ordinary string within double quotes, for example,
+        "19820102070533.8".</p>
+      <p>For DER encoding, the compiler does not check the validity
+        of the time values. The DER requirements upon those strings are
+        regarded as a matter for the application to fulfill.</p>
+    </section>
+
+    <section>
+      <marker id="SEQUENCE"></marker>
+      <title>SEQUENCE</title>
+      <p>The structured types of ASN.1 are constructed from other types
+        in a manner similar to the concepts of array and struct in  C.</p>
+      <p>A <c>SEQUENCE</c> in ASN.1 is
+        comparable with a struct in C and a record in Erlang.
+        A <c>SEQUENCE</c> can be defined as follows:</p>
+      <pre>
+Pdu ::= SEQUENCE {
+   a INTEGER,
+   b REAL,
+   c OBJECT IDENTIFIER,
+   d NULL }      </pre>
+      <p>This is a 4-component structure called <c>Pdu</c>. The record format
+        is the major format for representation of <c>SEQUENCE</c> in Erlang.
+        For each <c>SEQUENCE</c> and <c>SET</c> in an ASN.1 module an Erlang
+        record declaration is generated. For <c>Pdu</c>, a record
+        like the following is defined:</p>
+      <pre>
+-record('Pdu',{a, b, c, d}).      </pre>
+      <p>The record declarations for a module <c>M</c> are placed in a
+        separate <c>M.hrl</c> file.</p>
+      <p>Values can be assigned in Erlang as follows:</p>
+      <pre>
+MyPdu = #'Pdu'{a=22,b=77.99,c={0,1,2,3,4},d='NULL'}.      </pre>
+      <p>The decode functions return a record as result when decoding
+      a <c>SEQUENCE</c> or a <c>SET</c>.</p>
+
+      <p>A <c>SEQUENCE</c> and a <c>SET</c> can contain a component
+      with a <c>DEFAULT</c> keyword followed by the actual value, which
+      is the default value. The <c>DEFAULT</c> keyword means that the
+      application doing the encoding can omit encoding of the value, which
+      results in fewer bytes to send to the receiving application.</p>
+
+      <p>An application can use the atom <c>asn1_DEFAULT</c> to indicate
+      that the encoding is to be omitted for that position in
+      the <c>SEQUENCE</c>.</p>
+
+      <p>Depending on the encoding rules, the encoder can also compare
+      the given value to the default value and automatically omit the
+      encoding if the values are equal. How much effort the encoder makes
+      to compare the values depends on the encoding rules. The DER
+      encoding rules forbid encoding a value equal to the default value,
+      so it has a more thorough and time-consuming comparison than the
+      encoders for the other encoding rules.</p>
+
+      <p>In the following example, this ASN.1 specification is used:</p>
+      <pre>
+File DEFINITIONS AUTOMATIC TAGS ::=
+BEGIN
+Seq1 ::= SEQUENCE {
+    a INTEGER DEFAULT 1,
+    b Seq2 DEFAULT {aa TRUE, bb 15}
+}
+
+Seq2 ::= SEQUENCE {
+    aa BOOLEAN,
+    bb INTEGER
+}
+
+Seq3 ::= SEQUENCE {
+    bs BIT STRING {a(0), b(1), c(2)} DEFAULT {a, c}
+}
+END </pre>
+      <p>Example where the BER encoder is able to omit encoding
+      of the default values:</p>
+      <pre>
+1> <input>asn1ct:compile('File', [ber]).</input>
+ok
+2> <input>'File':encode('Seq1', {'Seq1',asn1_DEFAULT,asn1_DEFAULT}).</input>
+{ok,&lt;&lt;48,0>>}
+3> <input>'File':encode('Seq1', {'Seq1',1,{'Seq2',true,15}}).</input>
+{ok,&lt;&lt;48,0>>}   </pre>
+
+     <p>Example with a named <c>BIT STRING</c> where the BER
+     encoder does not omit the encoding:</p>
+     <pre>
+4> <input>'File':encode('Seq3', {'Seq3',asn1_DEFAULT).</input>
+{ok,&lt;&lt;48,0>>}
+5> <input>'File':encode('Seq3', {'Seq3',&lt;&lt;16#101:3>>).</input>
+{ok,&lt;&lt;48,4,128,2,5,160>>}     </pre>
+
+     <p>The DER encoder omits the encoding for the same <c>BIT STRING</c>:</p>
+     <pre>
+6> <input>asn1ct:compile('File', [ber,der]).</input>
+ok
+7> <input>'File':encode('Seq3', {'Seq3',asn1_DEFAULT).</input>
+{ok,&lt;&lt;48,0>>}
+8> <input>'File':encode('Seq3', {'Seq3',&lt;&lt;16#101:3>>).</input>
+{ok,&lt;&lt;48,0>>}     </pre>
+    </section>
+
+    <section>
+      <marker id="SET"></marker>
+      <title>SET</title>
+      <p>In Erlang, the <c>SET</c> type is used exactly as <c>SEQUENCE</c>.
+      Notice that if BER or DER encoding rules are used, decoding a
+      <c>SET</c> is slower than decoding a <c>SEQUENCE</c> because the
+      components must be sorted.</p>
+    </section>
+
+    <section>
+      <title>Extensibility for SEQUENCE and SET</title>
+      <p>When a <c>SEQUENCE</c> or <c>SET</c> contains an extension marker
+        and extension components as the following, the type can get more
+        components in newer versions of the ASN.1 spec:</p>
+      <pre>
+SExt ::= SEQUENCE {
+           a INTEGER,
+           ...,
+           b BOOLEAN }</pre>
+      <p>In this case it has got a new
+        component <c>b</c>. Thus, incoming messages that are decoded
+        can have more or fever components than this one.
+        </p>
+      <p>The component <c>b</c> is treated as
+        an original component when encoding a message. In this case, as
+        it is not an optional element, it must be encoded.
+        </p>
+      <p>During decoding, the <c>b</c> field of the record gets the decoded
+        value of the <c>b</c>
+        component, if present, otherwise the value <c>asn1_NOVALUE</c>.</p>
+    </section>
+
+    <section>
+      <marker id="CHOICE"></marker>
+      <title>CHOICE</title>
+      <p>The type <c>CHOICE</c> is a space saver and is similar to the
+      concept of a 'union' in C.</p>
+      <p>Assume the following:</p>
+      <pre>
+SomeModuleName DEFINITIONS AUTOMATIC TAGS ::=
+BEGIN
+T ::= CHOICE {
+        x REAL,
+        y INTEGER,
+        z OBJECT IDENTIFIER }
+END </pre>
+      <p>It is then possible to assign values as follows:</p>
+      <pre>
+TVal1 = {y,17},
+TVal2 = {z,{0,1,2}},</pre>
+      <p>A <c>CHOICE</c> value is always represented as the tuple
+        <c>{ChoiceAlternative, Val}</c> where <c>ChoiceAlternative</c>
+        is an atom denoting the selected choice alternative.
+      </p>
+
+      <section>
+        <title>Extensible CHOICE</title>
+        <p>When a <c>CHOICE</c> contains an extension marker and the
+         decoder detects an unknown alternative of the <c>CHOICE</c>,
+         the value is represented as follows:</p>
+        <pre>
+{asn1_ExtAlt, BytesForOpenType}</pre>
+        <p>Here <c>BytesForOpenType</c> is a list of bytes constituting the
+          encoding of the "unknown" <c>CHOICE</c> alternative.</p>
+      </section>
+    </section>
+
+    <section>
+      <marker id="SOF"></marker>
+      <title>SET OF and SEQUENCE OF</title>
+      <p>The types <c>SET OF</c> and <c>SEQUENCE OF</c> correspond
+        to the concept of an array
+        in several programming languages. The Erlang syntax for
+        both types is straightforward, for example:</p>
+      <pre>
+Arr1 ::= SET SIZE (5) OF INTEGER (4..9) 
+Arr2 ::= SEQUENCE OF OCTET STRING      </pre>
+      <p>In Erlang the following can apply:</p>
+      <pre>
+Arr1Val = [4,5,6,7,8],
+Arr2Val = ["abc",[14,34,54],"Octets"],      </pre>
+      <p>Notice that the definition of type <c>SET OF</c> implies that
+        the order of the components is undefined, but in practice there is 
+        no difference between <c>SET OF</c> and <c>SEQUENCE OF</c>.
+        The ASN.1 compiler for Erlang does not randomize the order of the
+        <c>SET OF</c> components before encoding.</p>
+      <p>However, for a value of type <c>SET OF</c>, the DER
+        encoding format requires the elements to be sent in ascending
+        order of their encoding, which implies an expensive sorting
+        procedure in runtime. Therefore it is recommended to
+        use <c>SEQUENCE OF</c> instead of <c>SET OF</c> if possible.</p>
+    </section>
+
+    <section>
+      <marker id="ANY"></marker>
+      <title>ANY and ANY DEFINED BY</title>
+      <p>The types <c>ANY</c> and <c>ANY DEFINED BY</c> have been removed
+        from the standard since 1994. It is recommended not to use
+        these types any more. They can, however, exist in some old ASN.1
+        modules. The idea with this type was to leave a "hole" in a 
+        definition where it was possible to
+        put unspecified data of any kind, even non-ASN.1 data.</p>
+      <p>A value of this type is encoded as an <c>open type</c>.</p>
+      <p>Instead of <c>ANY</c> and <c>ANY DEFINED BY</c>, it is
+        recommended to use
+        <c>information object class</c>, <c>table constraints</c>, and
+        <c>parameterization</c>. In particular the construct
+        <c>TYPE-IDENTIFIER.@Type</c> accomplish the same as the
+        deprecated <c>ANY</c>.</p>
+      <p>See also
+      <seealso marker="#Information Object">Information object</seealso>.</p>
+    </section>
+
+    <section>
+      <marker id="NegotiationTypes"></marker>
+      <title>EXTERNAL, EMBEDDED PDV, and CHARACTER STRING</title>
+      <p>The types <c>EXTERNAL</c>, <c>EMBEDDED PDV</c>, and
+      <c>CHARACTER STRING</c> are used in presentation layer negotiation.
+        They are encoded according to their associated type, see X.680.</p>
+      <p>The type <c>EXTERNAL</c> had a slightly different associated type
+        before 1994. X.691 states that encoding must follow
+        the older associated type. So, generated encode/decode
+        functions convert values of the newer format to the older format
+        before encoding. This implies that it is allowed to use
+        <c>EXTERNAL</c> type values of either format for encoding. Decoded
+        values are always returned in the newer format.</p>
+    </section>
+
+    <section>
+      <title>Embedded Named Types</title>
+      <p>The structured types previously described can have other named
+        types as their components. The general syntax to assign a value
+        to component <c>C</c> of a named ASN.1 type <c>T</c> in Erlang
+        is the record syntax <c>#'T'{'C'=Value}</c>.
+        Here <c>Value</c> can be a value of yet another type <c>T2</c>,
+        for example:</p>
+      <pre>
+EmbeddedExample DEFINITIONS AUTOMATIC TAGS ::=
+BEGIN
+B ::= SEQUENCE {
+        a Arr1,
+        b T }
+
+Arr1 ::= SET SIZE (5) OF INTEGER (4..9) 
+
+T ::= CHOICE {
+        x REAL,
+        y INTEGER,
+        z OBJECT IDENTIFIER }
+        END      </pre>
+      <p><c>SEQUENCE</c> <c>b</c> can be encoded as follows in Erlang:</p>
+      <pre>
+1> 'EmbeddedExample':encode('B', {'B',[4,5,6,7,8],{x,"7.77"}}).
+{ok,&lt;&lt;5,56,0,8,3,55,55,55,46,69,45,50>>} </pre>
+    </section>
+  </section>
+
+  <section>
+    <title>Naming of Records in .hrl Files</title>
+    <p>When an ASN.1 specification is compiled, all defined types of type
+      <c>SET</c> or <c>SEQUENCE</c> result in a corresponding record in the
+      generated <c>.hrl</c> file. This is because the values for
+      <c>SET</c> and <c>SEQUENCE</c> are represented as records as
+      mentioned earlier.</p>
+    <p>Some special cases of this functionality are presented in the
+      next section.</p>
+
+    <section>
+      <title>Embedded Structured Types</title>
+      <p>In ASN.1 it is also possible to have components that are themselves
+        structured types.
+        For example, it is possible to have the following:</p>
+      <pre>
+Emb ::= SEQUENCE {
+    a SEQUENCE OF OCTET STRING,
+    b SET {
+       a INTEGER,
+       b INTEGER DEFAULT 66},
+    c CHOICE {
+       a INTEGER,
+       b FooType } }
+
+FooType ::= [3] VisibleString      </pre>
+      <p>The following records are generated because of type <c>Emb</c>:</p>
+      <pre>
+-record('Emb,{a, b, c}).
+-record('Emb_b',{a, b = asn1_DEFAULT}). % the embedded SET type </pre>
+      <p>Values of type <c>Emb</c> can be assigned as follows:</p>
+      <code type="none">
+V = #'Emb'{a=["qqqq",[1,2,255]], 
+           b = #'Emb_b'{a=99}, 
+           c ={b,"Can you see this"}}.</code>
+      <p>For an embedded type of type <c>SEQUENCE</c>/<c>SET</c> in a
+        <c>SEQUENCE</c>/<c>SET</c>, the record name is extended with an
+        underscore and the component name. If the embedded structure is
+        deeper with the <c>SEQUENCE</c>, <c>SET</c>, or <c>CHOICE</c>
+        types in the line, each component name/alternative name is
+        added to the record name.</p>
+      <p>Example:</p>
+      <pre>
+Seq ::= SEQUENCE{
+    a CHOICE{
+        b SEQUENCE {
+           c  INTEGER
+        }
+    }
+}      </pre>
+      <p>This results in the following record:</p>
+      <pre>
+-record('Seq_a_b',{c}).      </pre>
+      <p>If the structured type has a component with an embedded
+        <c>SEQUENCE OF</c>/<c>SET OF</c> which embedded type in turn
+        is a <c>SEQUENCE</c>/<c>SET</c>, it gives a record with the
+        <c>SEQUENCE OF</c>/<c>SET OF</c>
+        addition as in the following example:</p>
+      <pre>
+Seq ::= SEQUENCE {
+    a SEQUENCE OF SEQUENCE {
+           b
+               }
+    c SET OF SEQUENCE {
+           d
+               }
+}      </pre>
+      <p>This results in the following records:</p>
+      <pre>
+-record('Seq_a_SEQOF'{b}).
+-record('Seq_c_SETOF'{d}).      </pre>
+      <p>A parameterized type is to be considered as an embedded
+        type. Each time such a type is referenced, an instance of it is
+        defined. Thus, in the following example a record with name
+        <c>'Seq_b'</c> is generated in the <c>.hrl</c> file and is used
+        to hold values:</p>
+      <pre>
+Seq ::= SEQUENCE {
+    b PType{INTEGER}
+}
+
+PType{T} ::= SEQUENCE{
+    id T
+}      </pre>
+    </section>
+
+    <section>
+      <title>Recursive Types</title>
+      <p>Types that refer to themselves are called recursive types.
+      Example:</p>
+      <pre>
+Rec ::= CHOICE {
+     nothing NULL,
+     something SEQUENCE {
+          a INTEGER,
+          b OCTET STRING,
+          c Rec }}      </pre>
+      <p>This is allowed in ASN.1 and the ASN.1-to-Erlang compiler
+      supports this recursive type.
+      A value for this type is assigned in Erlang as follows:</p>
+      <pre>
+V = {something,#'Rec_something'{a = 77, 
+                                b = "some octets here", 
+                                c = {nothing,'NULL'}}}.      </pre>
+    </section>
+  </section>
+
+  <section>
+    <title>ASN.1 Values</title>
+    <p>Values can be assigned to an ASN.1 type within the ASN.1 code
+      itself, as opposed to the actions in the previous section where
+      a value was assigned to an ASN.1 type in Erlang. The full value
+      syntax of ASN.1 is supported and X.680 describes in detail how
+      to assign values in ASN.1. A short example:</p>
+    <pre>
+TT ::= SEQUENCE {
+   a INTEGER,
+   b SET OF OCTET STRING }
+
+tt TT ::= {a 77,b {"kalle","kula"}}    </pre>
+    <p>The value defined here can be used in several ways. It can, for
+      example, be used as the value in some <c>DEFAULT</c> component:</p>
+    <pre>
+SS ::= SET {
+    s OBJECT IDENTIFIER,
+    val TT DEFAULT tt }    </pre>
+    <p>It can also be used from inside an Erlang program. If this ASN.1
+      code is defined in ASN.1 module <c>Values</c>, the ASN.1 value
+      <c>tt</c> can be reached from Erlang as a function call to
+      <c>'Values':tt()</c> as in the following example:</p>
+    <pre>
+1> <input>Val = 'Values':tt().</input>
+{'TT',77,["kalle","kula"]}
+2> <input>{ok,Bytes} = 'Values':encode('TT',Val).</input>
+{ok,&lt;&lt;48,18,128,1,77,161,13,4,5,107,97,108,108,101,4,4,
+      107,117,108,97&gt;&gt;}
+4> <input>'Values':decode('TT',Bytes).</input>
+{ok,{'TT',77,["kalle","kula"]}}
+5>  </pre>
+    <p>This example shows that a function is generated by the compiler
+      that returns a valid Erlang representation of the value, although
+      the value is of a complex type.</p>
+    <p>Furthermore, a macro is generated for each value in the <c>.hrl</c>
+      file. So, the defined value <c>tt</c> can also be extracted by
+      <c>?tt</c> in application code.</p>
+  </section>
+
+  <section>
+    <title>Macros</title>
+    <p>The type <c>MACRO</c> is not supported. It is no longer part of
+    the ASN.1 standard.</p>
+  </section>
+
+  <section>
+    <marker id="Information Object"></marker>
+    <title>ASN.1 Information Objects (X.681)</title>
+    <p>Information Object Classes, Information Objects, and Information
+      Object Sets (in the following called classes, objects, and
+      object sets, respectively) are defined in the standard
+      definition X.681. Only a brief explanation is given here.</p>
+    <p>These constructs makes it possible to define open types, that
+      is, values of that type can be of any ASN.1 type. Also,
+      relationships can be defined between different types and
+      values, as classes can hold types, values, objects, object
+      sets, and other classes in their fields. A class can be
+      defined in ASN.1 as follows:</p>
+    <pre>
+GENERAL-PROCEDURE ::= CLASS {
+      &amp;Message,
+      &amp;Reply               OPTIONAL,
+      &amp;Error               OPTIONAL,
+      &amp;id          PrintableString UNIQUE
+}
+WITH SYNTAX {
+      NEW MESSAGE     &amp;Message
+      [REPLY           &amp;Reply]
+      [ERROR           &amp;Error]
+      ADDRESS          &amp;id
+}    </pre>
+    <p>An object is an instance of a class. An object set is a set
+      containing objects of a specified class. A definition can look
+      as follows:</p>
+    <pre>
+object1 GENERAL-PROCEDURE ::= {
+    NEW MESSAGE      PrintableString
+    ADDRESS          "home"
+}
+
+object2 GENERAL-PROCEDURE ::= {
+    NEW MESSAGE INTEGER
+    ERROR INTEGER
+    ADDRESS "remote"
+}</pre>
+    <p>The object <c>object1</c> is an instance of the class
+      <c>GENERAL-PROCEDURE</c> and has one type field and one
+      fixed type value field. The object <c>object2</c> has also an
+      optional field <c>ERROR</c>, which is a type field. The field
+      <c>ADDRESS</c> is a <c>UNIQUE</c> field. Objects in an object set
+      must have unique values in their <c>UNIQUE</c> field, as in
+      <c>GENERAL-PROCEDURES</c>:</p>
+    <pre>
+GENERAL-PROCEDURES GENERAL-PROCEDURE ::= {
+    object1 | object2}    </pre>
+    <p>You cannot encode a class, object, or object set, only refer to
+      it when defining other ASN.1 entities. Typically you refer to a
+      class as well as to object sets by table constraints and component
+      relation constraints (X.682) in ASN.1 types, as in the following:</p>
+    <pre>
+StartMessage  ::= SEQUENCE {
+    msgId  GENERAL-PROCEDURE.&amp;id  ({GENERAL-PROCEDURES}),
+    content GENERAL-PROCEDURE.&amp;Message ({GENERAL-PROCEDURES}{@msgId}),
+    }    </pre>
+    <p>In type <c>StartMessage</c>, the constraint following field
+      <c>content</c> tells that in a value of type
+      <c>StartMessage</c> the value in field <c>content</c> must
+      come from the same object that is chosen by field <c>msgId</c>.</p>
+    <p>So, the value
+      <c>#'StartMessage'{msgId="home",content="Any Printable String"}</c>
+      is legal to encode as a <c>StartMessage</c> value. However, the value
+      <c>#'StartMessage'{msgId="remote", content="Some String"}</c>
+      is illegal as the constraint in <c>StartMessage</c> tells that
+      when you have chosen a value from a specific object in object
+      set <c>GENERAL-PROCEDURES</c> in field 
+      <c>msgId</c>, you must choose a value from that same object in
+      the content field too. In this second case, it is to be
+      any <c>INTEGER</c> value.</p>
+    <p><c>StartMessage</c> can in field <c>content</c> be
+      encoded with a value of any type that an object in object set
+      <c>GENERAL-PROCEDURES</c> has in its <c>NEW MESSAGE</c> field.
+      This field refers to a type field
+      <c>&amp;Message</c> in the class. Field <c>msgId</c> is always
+      encoded as a <c>PrintableString</c>, as the field refers to a
+      fixed type in the class.</p>
+    <p>In practice, object sets are usually declared to be extensible so
+      that more objects can be added to the set later. Extensibility is
+      indicated as follows:</p>
+    <pre>
+GENERAL-PROCEDURES GENERAL-PROCEDURE ::= {
+    object1 | object2, ...}    </pre>
+     <p>When decoding a type that uses an extensible set constraint,
+     it is always possible that the value in field <c>UNIQUE</c>
+     is unknown (that is, the type has been encoded with a later
+     version of the ASN.1 specification). The unencoded data is then
+     returned wrapped in a tuple as follows:</p>
+
+     <pre>
+{asn1_OPENTYPE,Binary}</pre>
+
+     <p>Here <c>Binary</c> is an Erlang binary that contains the encoded
+     data. (If option <c>legacy_erlang_types</c> has been given,
+     only the binary is returned.)</p>
+  </section>
+
+  <section>
+    <title>Parameterization (X.683)</title>
+    <p>Parameterization, which is defined in X.683, can be used when
+      defining types, values, value sets, classes, objects, or object sets.
+      A part of a definition can be supplied as a parameter. For
+      example, if a <c>Type</c> is used in a definition with a certain
+      purpose, you want the type name to express the intention. This
+      can be done with parameterization.</p>
+    <p>When many types (or another ASN.1 entity) only differ in some
+      minor cases, but the structure of the types is similar, only
+      one general type can be defined and the differences can be supplied
+      through parameters.</p>
+    <p>Example of use of parameterization:</p>
+    <pre>
+General{Type} ::= SEQUENCE
+{
+     number     INTEGER,
+     string     Type
+}
+      
+T1 ::= General{PrintableString}
+
+T2 ::= General{BIT STRING}</pre>
+    <p>An example of a value that can be encoded as type <c>T1</c> is
+      <c>{12,"hello"}</c>.</p>
+    <p>Notice that the compiler does not generate encode/decode functions
+      for parameterized types, only for the instances of the parameterized
+      types. Therefore, if a file contains the types <c>General{}</c>,
+      <c>T1</c>, and <c>T2</c> as in the previous example, encode/decode
+      functions are only generated for <c>T1</c> and <c>T2</c>.
+      </p>
+  </section>
+</chapter>
+
diff --git a/lib/asn1/doc/src/asn1_introduction.xml b/lib/asn1/doc/src/asn1_introduction.xml
new file mode 100644
index 0000000000..ae0379684a
--- /dev/null
+++ b/lib/asn1/doc/src/asn1_introduction.xml
@@ -0,0 +1,99 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!DOCTYPE chapter SYSTEM "chapter.dtd">
+
+<chapter>
+  <header>
+    <copyright>
+      <year>1997</year><year>2013</year>
+      <holder>Ericsson AB. All Rights Reserved.</holder>
+    </copyright>
+    <legalnotice>
+      The contents of this file are subject to the Erlang Public License,
+      Version 1.1, (the "License"); you may not use this file except in
+      compliance with the License. You should have received a copy of the
+      Erlang Public License along with this software. If not, it can be
+      retrieved online at http://www.erlang.org/.
+    
+      Software distributed under the License is distributed on an "AS IS"
+      basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+      the License for the specific language governing rights and limitations
+      under the License.
+    
+    </legalnotice>
+
+    <title>Introduction</title>
+    <prepared></prepared>
+    <docno></docno>
+    <date>2015-03-31</date>
+    <rev>A</rev>
+    <file>asn1_introduction.xml</file>
+  </header>
+
+  <p>The <c>ASN.1</c> application provides the following:</p>
+
+  <list type="bulleted">
+    <item>An ASN.1 compiler for Erlang, which generates encode and
+    decode functions to be used by Erlang programs sending and
+    receiving ASN.1 specified data.</item>
+    <item>Runtime functions used by the generated code.</item>
+    <item>Support for the following encoding rules:
+    <list><item>Basic Encoding Rules (BER)</item>
+    <item>Distinguished Encoding Rules (DER), a specialized form of
+    BER that is used in security-conscious applications</item>
+    <item>Packed Encoding Rules (PER), both the aligned and
+    unaligned variant</item>
+    </list>
+    </item>
+  </list>
+
+  <section>
+    <title>Scope</title>
+      <p>This application covers all features of ASN.1 up to the 1997
+      edition of the specification. In the 2002 edition,
+      new features were introduced. The following features
+      of the 2002 edition are fully or partly supported:</p>
+      <list type="bulleted">
+	<item>
+	  <p>Decimal notation (for example, <c>"1.5e3</c>) for REAL values.
+	  The NR1, NR2, and NR3 formats as explained in ISO 6093 are
+	  supported.</p>
+	</item>
+	<item>
+	  <p>The <c>RELATIVE-OID</c> type for relative object identifiers is
+	  fully supported.</p>
+	</item>
+	<item>
+	  <p>The subtype constraint (<c>CONTAINING</c>/<c>ENCODED BY</c>) to
+	  constrain the content of an octet string or a bit string is
+	  parsed when compiling, but no further action is taken. This
+	  constraint is not a PER-visible constraint.</p>
+	</item>
+	<item>
+	  <p>The subtype constraint by regular expressions (<c>PATTERN</c>)
+	  for character string types is parsed when compiling, but no
+	  further action is taken. This constraint is not a
+	  PER-visible constraint.</p>
+	</item>
+	<item>
+	  <p>Multiple-line comments as in C, <c>/* ... */</c>, are
+	  supported.</p>
+	</item>
+      </list>
+  </section>
+
+  <section>
+    <title>Prerequisites</title>
+      <p>It is assumed that the reader is familiar with the Erlang
+      programming language, concepts of OTP, and is familiar with the
+      ASN.1 notation. The ASN.1 notation is documented in the standard
+      definition X.680, which is the primary text. It can also be
+      helpful, but not necessary, to read the standard definitions
+      X.681, X.682, X.683, X.690, and X.691.</p>
+      <p>A good book explaining those reference texts is
+      Dubuisson: ASN.1 - Communication Between Heterogeneous Systems,
+      is free to download at
+      <url href="http://www.oss.com/asn1/dubuisson.html">http://www.oss.com/asn1/dubuisson.html</url>.</p>
+  </section>
+
+</chapter>
+
diff --git a/lib/asn1/doc/src/asn1_overview.xml b/lib/asn1/doc/src/asn1_overview.xml
new file mode 100644
index 0000000000..4a10819c36
--- /dev/null
+++ b/lib/asn1/doc/src/asn1_overview.xml
@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!DOCTYPE chapter SYSTEM "chapter.dtd">
+
+<chapter>
+  <header>
+    <copyright>
+      <year>1997</year><year>2013</year>
+      <holder>Ericsson AB. All Rights Reserved.</holder>
+    </copyright>
+    <legalnotice>
+      The contents of this file are subject to the Erlang Public License,
+      Version 1.1, (the "License"); you may not use this file except in
+      compliance with the License. You should have received a copy of the
+      Erlang Public License along with this software. If not, it can be
+      retrieved online at http://www.erlang.org/.
+    
+      Software distributed under the License is distributed on an "AS IS"
+      basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+      the License for the specific language governing rights and limitations
+      under the License.
+    
+    </legalnotice>
+
+    <title>ASN.1</title>
+    <prepared>Kenneth Lundin</prepared>
+    <docno></docno>
+    <date>1999-03-25</date>
+    <rev>D</rev>
+    <file>asn1_overview.xml</file>
+  </header>
+
+<section>
+  <title>Introduction</title>
+
+      <p>ASN.1 is a formal language for
+      describing data structures to be exchanged between distributed
+      computer systems. The purpose of ASN.1 is to have a platform
+      and programming language independent notation to express types
+      using a standardized set of rules for the transformation of
+      values of a defined type into a stream of bytes. This stream of
+      bytes can then be sent on any type of communication
+      channel. This way, two applications written in different
+      programming languages running on different computers, and with
+      different internal representation of data, can exchange instances
+      of structured data types.</p>
+
+</section>
+</chapter>
+
diff --git a/lib/asn1/doc/src/asn1_spec.xmlsrc b/lib/asn1/doc/src/asn1_spec.xmlsrc
index 9001aca65c..e050dff553 100644
--- a/lib/asn1/doc/src/asn1_spec.xmlsrc
+++ b/lib/asn1/doc/src/asn1_spec.xmlsrc
@@ -29,94 +29,100 @@
     <file>asn1_spec.xml</file>
   </header>
   <marker id="SpecializedDecodes"></marker>
-  <p>When performance is of highest priority and one is interested in
-    a limited part of the ASN.1 encoded message, before one decide what
-    to do with the rest of it, one may want to decode only this small
-    part. The situation may be a server that has to decide to which
-    addressee it will send a message. The addressee may be interested in
-    the entire message, but the server may be a bottleneck that one want
-    to spare any unnecessary load. Instead of making two <em>complete decodes</em> (the normal case of decode), one in the server and one
-    in the addressee, it is only necessary to make one <em>specialized decode</em>(in the server) and another complete decode(in the
-    addressee). The following specialized decodes <em>exclusive decode</em> and <em>selected decode</em> support to solve this and
-    similar problems.
-    </p>
-  <p>So far this functionality is only provided when using the
-    optimized BER_BIN version, that is when compiling with the
-    options <c>ber_bin</c> and <c>optimize</c>. It does also work
-    using the <c>nif</c> option. We have no intent to make this
-    available on the default BER version, but maybe in the PER_BIN
-    version (<c>per_bin</c>).
-    </p>
+  <p>When performance is of highest priority and you are interested in
+    a limited part of the ASN.1 encoded message before deciding what
+    to do with the rest of it, an option is to decode only this small
+    part. The situation can be a server that has to decide the
+    addressee of a message. The addressee can be interested in
+    the entire message, but the server can be a bottleneck that you want
+    to spare any unnecessary load.</p>
+  <p> Instead of making two <em>complete decodes</em> (the normal case of
+    decode), one in the server and one in the addressee, it is only
+    necessary to make one <em>specialized decode</em>(in the server)
+    and another complete decode(in the addressee). This section
+    describes the following two specialized decodes, which support
+    to solve this and similar problems:</p>
+    <list type="bulleted">
+      <item><em>Exclusive decode</em></item>
+      <item><em>Selected decode</em></item>
+    </list>
+  <p>This functionality is only provided when using <c>BER</c>
+  (option <c>ber</c>).</p>
 
   <section>
     <title>Exclusive Decode</title>
     <p>The basic idea with exclusive
-      decode is that you specify which parts of the message you want to
+      decode is to specify which parts of the message you want to
       exclude from being decoded. These parts remain encoded and are
-      returned in the value structure as binaries. They may be decoded
+      returned in the value structure as binaries. They can be decoded
       in turn by passing them to a certain <c>decode_part/2</c>
-      function. The performance gain is high when the message is large
-      and you can do an exclusive decode and later on one or several
-      decodes of the parts or a second complete decode instead of two or
+      function. The performance gain is high for large messages.
+      You can do an exclusive decode and later one or more
+      decodes of the parts, or a second complete decode instead of two or
       more complete decodes.
       </p>
 
     <section>
-      <title>How To Make It Work</title>
-      <p>In order to make exclusive decode work you have to do the
-        following:
+      <title>Procedure</title>
+      <p>To perform an exclusive decode:
         </p>
       <list type="bulleted">
-        <item>First,decide the name of the function for the exclusive
-         decode.</item>
-        <item>Second, write instructions that must consist of the name
-         of the exclusive decode function, the name of the ASN.1
-         specification and a notation that tells which parts of the
-         message structure will be excluded from decode. These
-         instructions shall be included in a configuration
-         file. </item>
-        <item>Third, compile with the additional option
-        <c>asn1config</c>. The compiler searches for a configuration
-         file with the same name as the ASN.1 spec but with the
-         extension .asn1config. This configuration file is not the same
-         as used for compilation of a set of files. See section
-        <seealso marker="#UndecodedPart">Writing an Exclusive Decode Instruction.</seealso></item>
+        <item><em>Step 1:</em> Decide the name of the function for the
+	 exclusive decode.</item>
+        <item><p><em>Step 2:</em> Include the following instructions in
+	 a configuration file:</p>
+	 <list type="bulleted">
+	   <item>The name of the exclusive decode function</item>
+	   <item>The name of the ASN.1 specification</item>
+	   <item>A notation that tells which parts of the message
+	   structure to be excluded from decode</item>
+	   </list></item>
+        <item><em>Step 3</em> Compile with the additional option
+         <c>asn1config</c>. The compiler searches for a configuration
+         file with the same name as the ASN.1 specification but with
+         extension <c>.asn1config</c>. This configuration file is not
+	 the same as used for compilation of a set of files. See Section
+	 <seealso marker="#UndecodedPart">Writing an Exclusive Decode
+	 Instruction.</seealso></item>
       </list>
     </section>
 
     <section>
       <title>User Interface</title>
-      <p>The run-time user interface for exclusive decode consists of
-        two different functions. First, the function for an exclusive
-        decode, whose name the user decides in the configuration
-        file. Second, the compiler generates a <c>decode_part/2</c>
-        function when exclusive decode is chosen. This function decodes
-        the parts that were left undecoded during the exclusive
-        decode. Both functions are described below.
-        </p>
-      <p>If the exclusive decode function has for example got the name
+      <p>The runtime user interface for exclusive decode consists of
+        the following two functions:</p>
+	<list type="bulleted">
+	  <item>A function for an exclusive decode, whose name the user
+	  decides in the configuration file</item>
+	  <item>The compiler generates a <c>decode_part/2</c>
+          function when exclusive decode is chosen. This function decodes
+          the parts that were left undecoded during the exclusive
+          decode.</item>
+	</list>
+      <p>Both functions are described in the following.</p>
+      <p>If the exclusive decode function has, for example, the name
         <c>decode_exclusive</c> and an ASN.1 encoded message
-        <c>Bin</c> shall be exclusive decoded, the call is:</p>
+        <c>Bin</c> is to be exclusive decoded, the call is as follows:</p>
       <pre>
 {ok,Excl_Message} = 'MyModule':decode_exclusive(Bin)      </pre>
       <marker id="UndecodedPart"></marker>
-      <p>The result <c>Excl_Message</c> has the same structure as an
-        complete decode would have, except for the parts of the top-type
-        that were not decoded. The undecoded parts will be on their place
-        in the structure on the format <c>{Type_Key,Undecoded_Value}</c>.
+      <p>The result <c>Excl_Message</c> has the same structure as a
+        complete decode would have, except for the parts of the top type
+        that were not decoded. The undecoded parts are on their places
+        in the structure on format <c>{Type_Key,Undecoded_Value}</c>.
         </p>
-      <p>Each undecoded part that shall be decoded must be fed into the <c>decode_part/2</c> function,like:</p>
+      <p>Each undecoded part that is to be decoded must be fed into
+        function <c>decode_part/2</c> as follows:</p>
       <pre>
-{ok,Part_Message} = 'MyModule':decode_part(Type_Key,Undecoded_Value)      </pre>
+{ok,Part_Message} = 'MyModule':decode_part(Type_Key,Undecoded_Value)</pre>
     </section>
 
     <section>
       <marker id="Exclusive Instruction"></marker>
       <title>Writing an Exclusive Decode Instruction</title>
-      <p>This instruction is written in the configuration file on the
-        format:</p>
+      <p>This instruction is written in the configuration file
+        in the following format:</p>
       <pre>
-
 Exclusive_Decode_Instruction = {exclusive_decode,{Module_Name,Decode_Instructions}}.
 
 Module_Name = atom()
@@ -137,70 +143,76 @@ Element = {Name,parts} |
 
 Top_Type = atom()
 
-Name = atom()
-      </pre>
-      <p>Observe that the instruction must be a valid Erlang term ended
-        by a dot.
+Name = atom()</pre>
+      <p>The instruction must be a valid Erlang term ended by a dot.
         </p>
-      <p>In the <c>Type_List</c> the "path" from the top type to each
-        undecoded sub-components is described. The top type of the path is
+      <p>In <c>Type_List</c> the "path" from the top type to each
+        undecoded subcomponents is described. The top type of the path is
         an atom, the name of it. The action on each component/type that
-        follows will be described by one of <c>{Name,parts}, {Name,undecoded}, {Name,Element_List}</c></p>
-      <p>The use and effect of the actions are:
+        follows is described by one of
+        <c>{Name,parts}, {Name,undecoded}, {Name,Element_List}</c>.</p>
+      <p>The use and effect of the actions are as follows:
         </p>
       <list type="bulleted">
-        <item><c>{Name,undecoded}</c> Tells that the element will be
-         left undecoded during the exclusive decode. The type of Name may
-         be any ASN.1 type. The value of element Name will be returned as a
-         tuple,as mentioned <seealso marker="#UndecodedPart">above</seealso>, in the value structure of the top type.</item>
-        <item><c>{Name,parts}</c> The type of Name may be one of
-         SEQUENCE OF or SET OF. The action implies that the different
-         components of Name will be left undecoded. The value of Name
-         will be returned as a tuple, as <seealso marker="#UndecodedPart">above </seealso>, where the second element is a list of
-         binaries. That is because the representation of a SEQUENCE OF/
-         SET OF in Erlang is a list of its internal type. Any of the
-         elements of this list or the entire list can be decoded by the
-        <c>decode_part</c> function.</item>
-        <item><c>{Name,Element_List}</c>This action is used when one or
-         more of the sub-types of Name will be exclusive decoded.</item>
+        <item><c>{Name,undecoded}</c> - Tells that the element is left
+         undecoded during the exclusive decode. The type of <c>Name</c>
+         can be any ASN.1 type. The value of element <c>Name</c> is
+         returned as a tuple (as mentioned in the previous section) in
+         the value structure of the top type.</item>
+        <item><c>{Name,parts}</c> - The type of <c>Name</c> can be one of
+         <c>SEQUENCE OF</c> or <c>SET OF</c>. The action implies that
+         the different components of <c>Name</c> are left undecoded. The
+         value of <c>Name</c> is returned as a tuple (as mentioned in
+         the previous section) where the second element is a list of
+         binaries. This is because the representation of a <c>SEQUENCE OF</c>
+         or a <c>SET OF</c> in Erlang is a list of its internal type. Any
+         of the elements in this list or the entire list can be decoded by
+         function <c>decode_part</c>.</item>
+        <item><c>{Name,Element_List}</c> - This action is used when one or
+         more of the subtypes of <c>Name</c> is exclusive decoded.</item>
       </list>
-      <p>Name in the actions above may be a component name of a
-        SEQUENCE or a SET or a name of an alternative in a CHOICE.
+      <p><c>Name</c> in these actions can be a component name of a
+        <c>SEQUENCE OF</c> or a <c>SET OF</c>, or a name of an alternative
+         in a <c>CHOICE</c>.
         </p>
     </section>
 
     <section>
       <title>Example</title>
-      <p>In the examples below we use the definitions from the following ASN.1 spec:</p>
+      <p>In this examples, the definitions from the following ASN.1
+        specification are used:</p>
       <marker id="Asn1spec"></marker>
       <codeinclude file="Seq.asn" tag="" type="none"></codeinclude>
-      <p>If <c>Button</c> is a top type and we want to exclude
-        component <c>number</c> from decode the Type_List in the
-        instruction in the configuration file will be
-        <c>['Button',[{number,undecoded}]]</c>. If we call the decode
-        function <c>decode_Button_exclusive</c> the Decode_Instruction
-        will be
+      <p>If <c>Button</c> is a top type and it is needed to exclude
+        component <c>number</c> from decode, <c>Type_List</c> in the
+        instruction in the configuration file is
+        <c>['Button',[{number,undecoded}]]</c>. If you call the decode
+        function <c>decode_Button_exclusive</c>, <c>Decode_Instruction</c> is
         <c>{decode_Button_exclusive,['Button',[{number,undecoded}]]}</c>.
         </p>
-      <p>We also have another top type <c>Window</c> whose sub
-        component actions in type <c>Status</c> and the parts of component
-        <c>buttonList</c> shall be left undecoded. For this type we name
-        the function <c>decode__Window_exclusive</c>. The whole
-        Exclusive_Decode_Instruction configuration is as follows: </p>
+      <p>Another top type is <c>Window</c> whose subcomponent
+        actions in type <c>Status</c> and the parts of component
+        <c>buttonList</c> are to be left undecoded. For this type, the
+        function is named <c>decode__Window_exclusive</c>. The complete
+        <c>Exclusive_Decode_Instruction</c> configuration is as follows:</p>
       <codeinclude file="Seq.asn1config" tag="" type="none"></codeinclude>
+      <p>The following figure shows the bytes of a <c>Window:status</c>
+        message. The components <c>buttonList</c> and <c>actions</c> are
+	excluded from decode. Only <c>state</c> and <c>enabled</c> are decoded
+	when <c>decode__Window_exclusive</c> is called.</p>
       <p></p>
       <image file="exclusive_Win_But.gif">
-        <icaption>Figure symbolizes the bytes of a Window:status message. The components buttonList and actions are excluded from decode. Only state and enabled are decoded when decode__Window_exclusive is called. </icaption>
+        <icaption>Bytes of a Window:status Message</icaption>
       </image>
       <p></p>
-      <p>Compiling GUI.asn including the configuration file is done like:</p>
+      <p>Compiling <c>GUI.asn</c> including the configuration file is done
+        as follows:</p>
       <pre>
-unix> erlc -bber_bin +optimize +asn1config GUI.asn
+unix> erlc -bber +asn1config GUI.asn
 
-erlang> asn1ct:compile('GUI',[ber_bin,optimize,asn1config]).      </pre>
-      <p>The module can be used like:</p>
+erlang> asn1ct:compile('GUI', [ber,asn1config]).</pre>
+      <p>The module can be used as follows:</p>
       <pre>
-
 1> Button_Msg = {'Button',123,true}.
 {'Button',123,true}
 2> {ok,Button_Bytes} = 'GUI':encode('Button',Button_Msg).
@@ -289,35 +301,39 @@ BoolOpt,{Type_Key_Choice,Val_Choice}}}}=
 11> 'GUI':decode_part(Type_Key_SeqOf,hd(Val_SEQOF)).
 {ok,{'Button',3,true}}
 12> 'GUI':decode_part(Type_Key_Choice,Val_Choice).  
-{ok,{possibleActions,[{'Action',16,{'Button',17,true}}]}}
-      </pre>
+{ok,{possibleActions,[{'Action',16,{'Button',17,true}}]}}</pre>
     </section>
   </section>
 
   <section>
     <title>Selective Decode</title>
-    <p>This specialized decode decodes one single subtype of a
-      constructed value. It is the fastest method to extract one sub
-      value. The typical use of this decode is when one want to
-      inspect, for instance a version number,to be able to decide what
+    <p>This specialized decode decodes a subtype of a
+      constructed value and is the fastest method to extract a
+      subvalue. This decode is typically used when you want to
+      inspect, for example, a version number, to be able to decide what
       to do with the entire value. The result is returned as
       <c>{ok,Value}</c> or <c>{error,Reason}</c>.
       </p>
 
     <section>
-      <title>How To Make It Work</title>
-      <p>The following steps are necessary:
+      <title>Procedure</title>
+      <p>To perform a selective decode:
         </p>
       <list type="bulleted">
-        <item>Write instructions in the configuration
-         file. Including the name of a user function, the name of the ASN.1
-         specification and a notation that tells which part of the type
-         will be decoded. </item>
-        <item>Compile with the additional option
-        <c>asn1config</c>. The compiler searches for a configuration file
-         with the same name as the ASN.1 spec but with the extension
-         .asn1config. In the same file you can provide configuration specs
-         for exclusive decode as well. The generated Erlang module has the
+        <item><p><em>Step 1:</em> Include the following instructions in
+	 the configuration file:</p>
+         <list type="bulleted">
+           <item>The name of the user function</item>
+           <item>The name of the ASN.1 specification</item>
+           <item>A notation that tells which part of the type to be
+           decoded</item>
+	 </list></item>
+        <item><em>Step 2:</em> Compile with the additional option
+         <c>asn1config</c>. The compiler searches for a configuration file
+         with the same name as the ASN.1 specification, but with extension
+         <c>.asn1config</c>. In the same file you can also provide
+	 configuration specifications for exclusive decode.
+         The generated Erlang module has the
          usual functionality for encode/decode preserved and the
          specialized decode functionality added. </item>
       </list>
@@ -326,21 +342,20 @@ BoolOpt,{Type_Key_Choice,Val_Choice}}}}=
     <section>
       <title>User Interface</title>
       <p>The only new user interface function is the one provided by the
-        user in the configuration file. You can invoke that function by
+        user in the configuration file. The function is started by
         the <c>ModuleName:FunctionName</c> notation.
         </p>
-      <p>So, if you have the following spec
+      <p>For example, if the configuration file includes the specification
         <c>{selective_decode,{'ModuleName',[{selected_decode_Window,TypeList}]}}</c>
-        in the con-fig file, you do the selective decode by
+        do the selective decode by
         <c>{ok,Result}='ModuleName':selected_decode_Window(EncodedBinary).</c></p>
     </section>
 
     <section>
       <marker id="Selective Instruction"></marker>
       <title>Writing a Selective Decode Instruction</title>
-      <p>It is possible to describe one or many selective decode
-        functions in a configuration file, you have to use the following
-        notation:</p>
+      <p>One or more selective decode functions can be described in a
+        configuration file. Use the following notation:</p>
       <pre>
 Selective_Decode_Instruction = {selective_decode,{Module_Name,Decode_Instructions}}.
 
@@ -358,37 +373,43 @@ Element_List = Name|List_Selector
 
 Name = atom()
 
-List_Selector = [integer()]      </pre>
-      <p>Observe that the instruction must be a valid Erlang term ended
-        by a dot.
-        </p>
-      <p>The <c>Module_Name</c> is the same as the name of the ASN.1
-        spec, but without the extension. A <c>Decode_Instruction</c> is
-        a tuple with your chosen function name and the components from
-        the top type that leads to the single type you want to
-        decode. Notice that you have to choose a name of your function
-        that will not be the same as any of the generated functions. The
-        first element of the <c>Type_List</c> is the top type of the
-        encoded message. In the <c>Element_List</c> it is followed by
-        each of the component names that leads to selected type. Each of
-        the names in the <c>Element_List</c> must be constructed types
-        except the last name, which can be any type.
+List_Selector = [integer()]</pre>
+      <p>The instruction must be a valid Erlang term ended by a dot.
         </p>
-      <p>The List_Selector makes it possible to choose one of the
-        encoded components in a SEQUENCE OF/ SET OF. It is also possible
-        to go further in that component and pick a sub type of that to
-        decode. So in the <c>Type_List</c>: <c>['Window',status,buttonList,[1],number]</c> the
-        component <c>buttonList</c> has to be a SEQUENCE OF or SET OF type. In
-        this example component <c>number</c> of the first of the encoded
-        elements in the SEQUENCE OF <c>buttonList</c> is selected. This apply on
-        the ASN.1 spec <seealso marker="#Asn1spec">above</seealso>.
+      <list type="bulleted">
+        <item><c>Module_Name</c> is the same as the name of the ASN.1
+        specification, but without the extension.</item>
+      <item><c>Decode_Instruction</c> is a tuple with your chosen
+        function name and the components from the top type that leads
+        to the single type you want to decode. Ensure to choose a name
+        of your function that is not the same as any of the generated
+        functions.</item>
+      <item> The first element of <c>Type_List</c> is the top type of the
+        encoded message. In <c>Element_List</c>, it is followed by
+        each of the component names that leads to selected type.</item>
+      <item>Each name in <c>Element_List</c> must be a constructed type
+        except the last name, which can be any type.</item>
+      <item><c>List_Selector</c> makes it possible to choose one of the
+        encoded components in a a <c>SEQUENCE OF</c> or a <c>SET OF</c>.
+        It is also possible to go further in that component and pick a
+        subtype of that to decode. So, in the <c>Type_List</c>:
+        <c>['Window',status,buttonList,[1],number]</c>, component
+        <c>buttonList</c> must be of type <c>SEQUENCE OF</c> or
+        <c>SET OF</c>.</item>
+      </list>
+      <p>In the example, component <c>number</c> of the first of the encoded
+        elements in the <c>SEQUENCE OF</c> <c>buttonList</c> is selected.
+        This applies on the ASN.1 specification in Section
+        <seealso marker="#Asn1spec">Writing an Exclusive Decode
+        Instruction</seealso>.
         </p>
     </section>
 
     <section>
       <title>Another Example</title>
-      <p>In this example we use the same ASN.1 spec as <seealso marker="#Asn1spec">above</seealso>. A valid selective decode
-        instruction is:</p>
+      <p>In this example, the same ASN.1 specification as in Section
+        <seealso marker="#Asn1spec">Writing an Exclusive Decode Instruction</seealso>
+         is used. The following is a valid selective decode instruction:</p>
       <pre>
 {selective_decode,
     {'GUI',
@@ -404,16 +425,17 @@ List_Selector = [integer()]      </pre>
       actions,
       possibleActions,
       [1],
-      handle,number]}]}}.
-      </pre>
-      <p>The first <c>Decode_Instruction</c>,
+      handle,number]}]}}.</pre>
+      <p>The first instruction,
         <c>{selected_decode_Window1,['Window',status,buttonList,[1],number]}</c>
-        is commented in the previous section. The instruction
-        <c>{selected_decode_Action,['Action',handle,number]}</c> picks
-        the component <c>number</c> in the <c>handle</c> component of the type
-        <c>Action</c>. If we have the value <c>ValAction = {'Action',17,{'Button',4711,false}}</c> the internal value 4711
-        should be picked by <c>selected_decode_Action</c>. In an Erlang
-        terminal it looks like:</p>
+        is described in the previous section.</p>
+      <p> The second instruction,
+        <c>{selected_decode_Action,['Action',handle,number]}</c>, takes
+        component <c>number</c> in the <c>handle</c> component of type
+        <c>Action</c>. If the value is
+        <c>ValAction = {'Action',17,{'Button',4711,false}}</c>, the internal
+        value 4711 is to be picked by <c>selected_decode_Action</c>. In an
+        Erlang terminal it looks as follows:</p>
       <pre>
 ValAction = {'Action',17,{'Button',4711,false}}.
 {'Action',17,{'Button',4711,false}}
@@ -423,44 +445,41 @@ ValAction = {'Action',17,{'Button',4711,false}}.
 &lt;&lt;48,18,2,1,17,160,13,172,11,171,9,48,7,128,2,18,103,129,1,0&gt;&gt;
 9> 'GUI':selected_decode_Action(BinBytes).
 {ok,4711}
-10>       </pre>
+10></pre>
       <p>The third instruction,
         <c>['Window',status,actions,possibleActions,[1],handle,number]</c>,
-        which is a little more complicated,</p>
+        works as follows:</p>
       <list type="bulleted">
-        <item>starts with type <em>Window</em>. </item>
-        <item>Picks component <em>status</em> of <c>Window</c> that is
-         of type <c>Status</c>.</item>
-        <item>Then takes component <em>actions</em> of type
+        <item><em>Step 1:</em> Starts with type <c>Window</c>.</item>
+        <item><em>Step 2:</em> Takes component <c>status</c> of <c>Window</c>
+         that is of type <c>Status</c>.</item>
+        <item><em>Step 3:</em> Takes <em>actions</em> of type
         <c>Status</c>.</item>
-        <item>Then <em>possibleActions</em> of the internal defined
-         CHOICE type.</item>
-        <item>Thereafter it goes into the first component of the
-         SEQUENCE OF by <em>[1]</em>. That component is of type
-        <c>Action</c>.</item>
-        <item>The instruction next picks component
-        <em>handle</em>.</item>
-        <item>And finally component <em>number</em> of the type
+        <item><em>Step 4:</em> Takes <c>possibleActions</c> of the internally
+         defined <c>CHOICE</c> type.</item>
+        <item><em>Step 5:</em> Goes into the first component of
+         <c>SEQUENCE OF</c> by <c>[1]</c>. That component is of type
+         <c>Action</c>.</item>
+        <item><em>Step 6:</em> Takes component <c>handle</c>.</item>
+        <item><em>Step 7:</em> Takes component <c>number</c> of type
         <c>Button</c>.</item>
       </list>
-      <p>The following figures shows which components are in the
-        TypeList
-        <c>['Window',status,actions,possibleActions,[1],handle,number]</c>. And
-        which part of a message that will be decoded by
-        selected_decode_Window2.
-        </p>
+      <p>The following figure shows which components are in <c>TypeList</c>
+        <c>['Window',status,actions,possibleActions,[1],handle,number]</c>:</p>
       <p></p>
       <image file="selective_TypeList.gif">
-        <icaption>The elements specified in the config file for selective decode of a sub-value in a Window message</icaption>
+        <icaption>Elements Specified in Configuration File for Selective Decode of a Subvalue in a Window Message</icaption>
       </image>
+      <p>In the following figure, only the marked element is decoded by
+        <c>selected_decode_Window2</c>:</p>
       <p></p>
       <image file="selective_Window2.gif">
-        <icaption>Figure symbolizes the bytes of a Window:status message. Only the marked element is decoded when selected_decode_Window2 is called. </icaption>
+        <icaption>Bytes of a Window:status Message</icaption>
       </image>
-      <p>With the following example you can examine that both
+      <p>With the following example, you can examine that both
         <c>selected_decode_Window2</c> and
-        <c>selected_decode_Window1</c> decodes the intended sub-value
-        of the value <c>Val</c></p>
+        <c>selected_decode_Window1</c> decodes the intended subvalue
+        of value <c>Val</c>:</p>
       <pre>
 1> Val = {'Window',{status,{'Status',12,
                     [{'Button',13,true},
@@ -478,8 +497,8 @@ ValAction = {'Action',17,{'Button',4711,false}}.
 4> 'GUI':selected_decode_Window1(Bin).
 {ok,13}
 5> 'GUI':selected_decode_Window2(Bin).
-{ok,18}      </pre>
-      <p>Observe that the value feed into the selective decode
+{ok,18}</pre>
+      <p>Notice that the value fed into the selective decode
         functions must be a binary.
         </p>
     </section>
@@ -489,19 +508,19 @@ ValAction = {'Action',17,{'Button',4711,false}}.
     <title>Performance</title>
     <p>To give an indication on the possible performance gain using
       the specialized decodes, some measures have been performed. The
-      relative figures in the outcome between selective, exclusive and
-      complete decode (the normal case) depends on the structure of
-      the type, the size of the message and on what level the
+      relative figures in the outcome between selective, exclusive, and
+      complete decode (the normal case) depend on the structure of
+      the type, the size of the message, and on what level the
       selective and exclusive decodes are specified.
       </p>
 
     <section>
-      <title>ASN.1 Specifications, Messages and Configuration</title>
-      <p>The specs <seealso marker="#Asn1spec">GUI</seealso> and
+      <title>ASN.1 Specifications, Messages, and Configuration</title>
+      <p>The specifications <seealso marker="#Asn1spec">GUI</seealso> and
         <url href="http://www.itu.int/ITU-T/asn1/database/itu-t/h/h248/2002/MEDIA-GATEWAY-CONTROL.html">MEDIA-GATEWAY-CONTROL</url>
-        was used in the test.
+        were used in the test.
         </p>
-      <p>For the GUI spec the configuration looked like:</p>
+      <p>For the <c>GUI</c> specification the configuration was as follows:</p>
       <pre>
 {selective_decode,
   {'GUI',
@@ -523,9 +542,8 @@ ValAction = {'Action',17,{'Button',4711,false}}.
                 ['Window',
                  [{status,
                      [{buttonList,parts},
-                      {actions,undecoded}]}]]}]}}.
-      </pre>
-      <p>The MEDIA-GATEWAY-CONTROL configuration was:</p>
+                      {actions,undecoded}]}]]}]}}.</pre>
+      <p>The <c>MEDIA-GATEWAY-CONTROL</c> configuration was as follows:</p>
       <pre>
 {exclusive_decode,
   {'MEDIA-GATEWAY-CONTROL',
@@ -538,9 +556,8 @@ ValAction = {'Action',17,{'Button',4711,false}}.
 {selective_decode,
   {'MEDIA-GATEWAY-CONTROL',
     [{decode_MegacoMessage_selective,
-         ['MegacoMessage',mess,version]}]}}.
-      </pre>
-      <p>The corresponding values were:</p>
+         ['MegacoMessage',mess,version]}]}}.</pre>
+      <p>The corresponding values were as follows:</p>
       <pre>
 {'Window',{status,{'Status',12,
               [{'Button',13,true},
@@ -649,177 +666,178 @@ ValAction = {'Action',17,{'Button',4711,false}}.
                 {'StatisticsParameter',[0,11,0,3],[[52,53,49,48,48]]},
                 {'StatisticsParameter',[0,12,0,6],[[48,46,50]]},
                 {'StatisticsParameter',[0,12,0,7],[[50,48]]},
-                {'StatisticsParameter',[0,12,0,8],[[52,48]]}]}]}}}]}]}}}]}}}      
-      </pre>
-      <p>The size of the encoded values was 458 bytes for GUI and 464
-        bytes for MEDIA-GATEWAY-CONTROL.
+                {'StatisticsParameter',[0,12,0,8],[[52,48]]}]}]}}}]}]}}}]}}}</pre>
+      <p>The size of the encoded values was 458 bytes for <c>GUI</c> and 464
+        bytes for <c>MEDIA-GATEWAY-CONTROL</c>.
         </p>
     </section>
 
     <section>
       <title>Results</title>
-      <p>The ASN.1 specs in the test are compiled with the options
-        <c>ber_bin, optimize, driver</c> and <c>asn1config</c>. If the
-        <c>driver</c> option had been omitted there should have been
+      <p>The ASN.1 specifications in the test were compiled with options
+        <c>ber_bin, optimize, driver</c> and <c>asn1config</c>. Omitting
+        option <c>driver</c> gives
         higher values for <c>decode</c> and <c>decode_part</c>. These tests have
-	not been re-run using nifs, but are expected to perform about 5% better
+	not been rerun using NIFs, but are expected to perform about 5% better
 	than the linked-in driver.
         </p>
       <p>The test program runs 10000 decodes on the value, resulting
-        in a printout with the elapsed time in microseconds for the
+        in an output with the elapsed time in microseconds for the
         total number of decodes.
         </p>
       <table>
         <row>
           <cell align="left" valign="top"><em>Function</em></cell>
-          <cell align="left" valign="top"><em>Time</em>(microseconds)</cell>
-          <cell align="left" valign="top"><em>Kind of Decode</em></cell>
-          <cell align="left" valign="top"><em>ASN.1 spec</em></cell>
-          <cell align="left" valign="top"><em>% of time vs. complete decode</em></cell>
+          <cell align="left" valign="top"><em>Time</em> (microseconds)</cell>
+          <cell align="left" valign="top"><em>Decode Type</em></cell>
+          <cell align="left" valign="top"><em>ASN.1 Specification</em></cell>
+          <cell align="left" valign="top"><em>% of Time versus Complete Decode</em></cell>
         </row>
         <row>
           <cell align="left" valign="middle"><c>decode_MegacoMessage_selective/1</c></cell>
           <cell align="left" valign="middle"><c>374045</c></cell>
-          <cell align="left" valign="middle"><c>selective</c></cell>
+          <cell align="left" valign="middle"><c>Selective</c></cell>
           <cell align="left" valign="middle"><c>MEDIA-GATEWAY-CONTROL</c></cell>
           <cell align="left" valign="middle"><em>8.3</em></cell>
         </row>
         <row>
           <cell align="left" valign="middle"><c>decode_MegacoMessage_exclusive/1</c></cell>
           <cell align="left" valign="middle"><c>621107</c></cell>
-          <cell align="left" valign="middle"><c>exclusive</c></cell>
+          <cell align="left" valign="middle"><c>Exclusive</c></cell>
           <cell align="left" valign="middle"><c>MEDIA-GATEWAY-CONTROL</c></cell>
           <cell align="left" valign="middle"><em>13.8</em></cell>
         </row>
         <row>
           <cell align="left" valign="middle"><c>decode/2</c></cell>
           <cell align="left" valign="middle"><c>4507457</c></cell>
-          <cell align="left" valign="middle"><c>complete</c></cell>
+          <cell align="left" valign="middle"><c>Complete</c></cell>
           <cell align="left" valign="middle"><c>MEDIA-GATEWAY-CONTROL</c></cell>
           <cell align="left" valign="middle"><em>100</em></cell>
         </row>
         <row>
           <cell align="left" valign="middle"><c>selected_decode_Window1/1</c></cell>
           <cell align="left" valign="middle"><c>449585</c></cell>
-          <cell align="left" valign="middle"><c>selective</c></cell>
+          <cell align="left" valign="middle"><c>Selective</c></cell>
           <cell align="left" valign="middle"><c>GUI</c></cell>
           <cell align="left" valign="middle"><em>7.6</em></cell>
         </row>
         <row>
           <cell align="left" valign="middle"><c>selected_decode_Window2/1</c></cell>
           <cell align="left" valign="middle"><c>890666</c></cell>
-          <cell align="left" valign="middle"><c>selective</c></cell>
+          <cell align="left" valign="middle"><c>Selective</c></cell>
           <cell align="left" valign="middle"><c>GUI</c></cell>
           <cell align="left" valign="middle"><em>15.1</em></cell>
         </row>
         <row>
           <cell align="left" valign="middle"><c>decode_Window_status_exclusive/1</c></cell>
           <cell align="left" valign="middle"><c>1251878</c></cell>
-          <cell align="left" valign="middle"><c>exclusive</c></cell>
+          <cell align="left" valign="middle"><c>Exclusive</c></cell>
           <cell align="left" valign="middle"><c>GUI</c></cell>
           <cell align="left" valign="middle"><em>21.3</em></cell>
         </row>
         <row>
           <cell align="left" valign="middle"><c>decode/2</c></cell>
           <cell align="left" valign="middle"><c>5889197</c></cell>
-          <cell align="left" valign="middle"><c>complete</c></cell>
+          <cell align="left" valign="middle"><c>Complete</c></cell>
           <cell align="left" valign="middle"><c>GUI</c></cell>
           <cell align="left" valign="middle"><em>100</em></cell>
         </row>
-        <tcaption>Results of complete, exclusive and selective decode</tcaption>
+        <tcaption>Results of Complete, Exclusive, and Selective Decode</tcaption>
       </table>
-      <p>Another interesting question is what the relation is between
+      <p>It is also of interest to know the relation is between
         a complete decode, an exclusive decode followed by
-        <c>decode_part</c> of the excluded parts and a selective decode
-        followed by a complete decode. Some situations may be compared to
-        this simulation, e.g. inspect a sub-value and later on look at
+        <c>decode_part</c> of the excluded parts, and a selective decode
+        followed by a complete decode. Some situations can be compared to
+        this simulation, for example, inspect a subvalue and later inspect
         the entire value. The following table shows figures from this
-        test. The number of loops and time unit is the same as in the
+        test. The number of loops and the time unit are the same as in the
         previous test.
         </p>
       <table>
         <row>
           <cell align="left" valign="top"><em>Actions</em></cell>
           <cell align="left" valign="top"><em>Function</em>&nbsp;&nbsp;&nbsp;&nbsp;</cell>
-          <cell align="left" valign="top"><em>Time</em>(microseconds)</cell>
-          <cell align="left" valign="top"><em>ASN.1 spec</em></cell>
-          <cell align="left" valign="top"><em>% of time vs. complete decode</em></cell>
+          <cell align="left" valign="top"><em>Time</em> (microseconds)</cell>
+          <cell align="left" valign="top"><em>ASN.1 Specification</em></cell>
+          <cell align="left" valign="top"><em>% of Time vs. Complete Decode</em></cell>
         </row>
         <row>
-          <cell align="left" valign="middle"><c>complete</c></cell>
+          <cell align="left" valign="middle"><c>Complete</c></cell>
           <cell align="left" valign="middle"><c>decode/2</c></cell>
           <cell align="left" valign="middle"><c>4507457</c></cell>
           <cell align="left" valign="middle"><c>MEDIA-GATEWAY-CONTROL</c></cell>
           <cell align="left" valign="middle"><em>100</em></cell>
         </row>
         <row>
-          <cell align="left" valign="middle"><c>selective and complete</c></cell>
+          <cell align="left" valign="middle"><c>Selective and Complete</c></cell>
           <cell align="left" valign="middle"><c>decode_&shy;MegacoMessage_&shy;selective/1</c></cell>
           <cell align="left" valign="middle"><c>4881502</c></cell>
           <cell align="left" valign="middle"><c>MEDIA-GATEWAY-CONTROL</c></cell>
           <cell align="left" valign="middle"><em>108.3</em></cell>
         </row>
         <row>
-          <cell align="left" valign="middle"><c>exclusive and decode_part</c></cell>
+          <cell align="left" valign="middle"><c>Exclusive and decode_part</c></cell>
           <cell align="left" valign="middle"><c>decode_&shy;MegacoMessage_&shy;exclusive/1</c></cell>
           <cell align="left" valign="middle"><c>5481034</c></cell>
           <cell align="left" valign="middle"><c>MEDIA-GATEWAY-CONTROL</c></cell>
           <cell align="left" valign="middle"><em>112.3</em></cell>
         </row>
         <row>
-          <cell align="left" valign="middle"><c>complete</c></cell>
+          <cell align="left" valign="middle"><c>Complete</c></cell>
           <cell align="left" valign="middle"><c>decode/2</c></cell>
           <cell align="left" valign="middle"><c>5889197</c></cell>
           <cell align="left" valign="middle"><c>GUI</c></cell>
           <cell align="left" valign="middle"><em>100</em></cell>
         </row>
         <row>
-          <cell align="left" valign="middle"><c>selective and complete</c></cell>
+          <cell align="left" valign="middle"><c>Selective and Complete</c></cell>
           <cell align="left" valign="middle"><c>selected_&shy;decode_&shy;Window1/1</c></cell>
           <cell align="left" valign="middle"><c>6337636</c></cell>
           <cell align="left" valign="middle"><c>GUI</c></cell>
           <cell align="left" valign="middle"><em>107.6</em></cell>
         </row>
         <row>
-          <cell align="left" valign="middle"><c>selective and complete</c></cell>
+          <cell align="left" valign="middle"><c>Selective and Complete</c></cell>
           <cell align="left" valign="middle"><c>selected_&shy;decode_&shy;Window2/1</c></cell>
           <cell align="left" valign="middle"><c>6795319</c></cell>
           <cell align="left" valign="middle"><c>GUI</c></cell>
           <cell align="left" valign="middle"><em>115.4</em></cell>
         </row>
         <row>
-          <cell align="left" valign="middle"><c>exclusive and decode_part</c></cell>
+          <cell align="left" valign="middle"><c>Exclusive and decode_part</c></cell>
           <cell align="left" valign="middle"><c>decode_&shy;Window_&shy;status_&shy;exclusive/1</c></cell>
           <cell align="left" valign="middle"><c>6249200</c></cell>
           <cell align="left" valign="middle"><c>GUI</c></cell>
           <cell align="left" valign="middle"><em>106.1</em></cell>
         </row>
-        <tcaption>Results of complete, exclusive + decode_part and selective + complete decodes</tcaption>
+        <tcaption>Results of Complete, Exclusive + decode_part, and Selective + complete decodes</tcaption>
       </table>
       <p>Other ASN.1 types and values can differ much from these
-        figures. Therefore it is important that you, in every case where
+        figures. It is therefore important that you, in every case where
         you intend to use either of these decodes, perform some tests
-        that shows if you will benefit your purpose.
+        that show if you will benefit your purpose.
         </p>
     </section>
 
     <section>
-      <title>Comments</title>
-      <p>Generally speaking the gain of selective and exclusive decode
-        in advance of complete decode is greater the bigger value and the
-        less deep in the structure you have to decode. One should also
-        prefer selective decode instead of exclusive decode if you are
-        interested in just one single sub-value.</p>
-      <p>Another observation is that the exclusive decode followed by
-        decode_part decodes is very attractive if the parts will be sent
-        to different servers for decoding or if one in some cases not is
-        interested in all parts.</p>
-      <p>The fastest selective decode are when the decoded type is a
+      <title>Final Remarks</title>
+      <list type="bulleted">
+      <item>The gain of using selective and exclusive decode instead of a
+        complete decode is greater the bigger the value and the
+        less deep in the structure you have to decode.</item>
+      <item>Use selective decode instead of exclusive decode if you are
+        interested in only a single subvalue.</item>
+      <item>Exclusive decode followed by
+        <c>decode_part</c> decodes is attractive if the parts are sent
+        to different servers for decoding, or if you in some cases are not
+        interested in all parts.</item>
+      <item>The fastest selective decode is when the decoded type is a
         primitive type and not so deep in the structure of the top
-        type. The <c>selected_decode_Window2</c> decodes a big constructed
-        value, which explains why this operation is relatively slow.</p>
-      <p>It may vary from case to case which combination of
-        selective/complete decode or exclusive/part decode is the fastest.</p>
+        type. <c>selected_decode_Window2</c> decodes a high constructed
+        value, which explains why this operation is relatively slow.</item>
+      <item>It can vary from case to case which combination of
+        selective/complete decode or exclusive/part decode is the fastest.</item>
+      </list>
     </section>
   </section>
 </chapter>
diff --git a/lib/asn1/doc/src/asn1_ug.xml b/lib/asn1/doc/src/asn1_ug.xml
deleted file mode 100644
index 8b33497dd3..0000000000
--- a/lib/asn1/doc/src/asn1_ug.xml
+++ /dev/null
@@ -1,1417 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE chapter SYSTEM "chapter.dtd">
-
-<chapter>
-  <header>
-    <copyright>
-      <year>1997</year><year>2013</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      The contents of this file are subject to the Erlang Public License,
-      Version 1.1, (the "License"); you may not use this file except in
-      compliance with the License. You should have received a copy of the
-      Erlang Public License along with this software. If not, it can be
-      retrieved online at http://www.erlang.org/.
-    
-      Software distributed under the License is distributed on an "AS IS"
-      basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-      the License for the specific language governing rights and limitations
-      under the License.
-    
-    </legalnotice>
-
-    <title>Asn1</title>
-    <prepared>Kenneth Lundin</prepared>
-    <docno></docno>
-    <date>1999-03-25</date>
-    <rev>D</rev>
-    <file>asn1_ug.xml</file>
-  </header>
-
-  <section>
-    <title>Introduction</title>
-
-    <section>
-      <title>Features</title>
-      <p>The Asn1 application provides:</p>
-      <list type="bulleted">
-        <item>An ASN.1 compiler for Erlang, which generates encode and
-         decode functions to be used by Erlang programs sending and
-         receiving ASN.1 specified data.</item>
-        <item>Run-time functions used by the generated code.</item>
-        <item>Support for the following encoding rules:
-	<list>
-	  <item>
-	    Basic Encoding Rules (<em>BER</em>)
-	  </item>
-	  <item>
-	    Distinguished Encoding Rules (<em>DER</em>), a specialized
-	    form of BER that is used in security-conscious
-	    applications.
-	  </item>
-	  <item>
-	    Packed Encoding Rules (<em>PER</em>); both the aligned and
-	    unaligned variant.
-	  </item>
-	  </list>
-	</item>
-      </list>
-    </section>
-
-    <section>
-      <title>Overview</title>
-      <p>ASN.1 (Abstract Syntax Notation One) is a formal language for
-      describing data structures to be exchanged between distributed
-      computer systems. The purpose of ASN.1 is to have a platform
-      and programming language independent notation to express types
-      using a standardized set of rules for the transformation of
-      values of a defined type into a stream of bytes. This stream of
-      bytes can then be sent on any type of communication
-      channel. This way, two applications written in different
-      programming languages running on different computers with
-      different internal representation of data can exchange instances
-      of structured data types.</p>
-    </section>
-
-    <section>
-      <title>Prerequisites</title>
-      <p>It is assumed that the reader is familiar with the ASN.1
-      notation as documented in the standard definition [<cite
-      id="X.680"></cite>] which is the primary text. It may also be
-      helpful, but not necessary, to read the standard definitions
-      [<cite id="X.681"></cite>] [<cite id="X.682"></cite>] [<cite
-      id="X.683"></cite>] [<cite id="X.690"></cite>] [<cite
-      id="X.691"></cite>]. </p>
-      <p>A good book explaining those reference texts is
-        [<cite id="DUBUISSON"></cite>], which is free to download at
-        <url href="http://www.oss.com/asn1/dubuisson.html">http://www.oss.com/asn1/dubuisson.html</url>.
-        </p>
-    </section>
-
-    <section>
-      <title>Capabilities</title>
-      <p>This application covers all features of ASN.1 up to the 1997
-      edition of the specification. In the 2002 edition of ASN.1 a
-      number of new features were introduced.  The following features
-      of the 2002 edition are fully or partly supported as shown
-      below:</p>
-      <list type="bulleted">
-	<item>
-	  <p>Decimal notation (e.g., "1.5e3") for REAL values. The
-	  NR1, NR2 and NR3 formats as explained in ISO6093 are
-	  supported.</p>
-	</item>
-	<item>
-	  <p>The RELATIVE-OID type for relative object identifiers is
-	  fully supported.</p>
-	</item>
-	<item>
-	  <p>The subtype constraint (CONTAINING/ENCODED BY) to
-	  constrain the content of an octet string or a bit string is
-	  parsed when compiling, but no further action is taken. This
-	  constraint is not a PER-visible constraint.</p>
-	</item>
-	<item>
-	  <p>The subtype constraint by regular expressions (PATTERN)
-	  for character string types is parsed when compiling, but no
-	  further action is taken. This constraint is not a
-	  PER-visible constraint.</p>
-	</item>
-	<item>
-	  <p>Multiple-line comments as in C, <c>/* ... */</c>, are
-	  supported.</p>
-	</item>
-      </list>
-    </section>
-
-  </section>
-
-  <section>
-    <title>Getting Started with Asn1</title>
-
-    <section>
-      <title>A First Example</title>
-      <p>The following example demonstrates the basic functionality used to run 
-        the Erlang ASN.1 compiler.</p>
-      <p>Create a file called <c>People.asn</c> containing the following:</p>
-      <pre>
-People DEFINITIONS AUTOMATIC TAGS ::=
-BEGIN
-  Person ::= SEQUENCE {
-    name PrintableString,
-    location INTEGER {home(0),field(1),roving(2)},
-    age INTEGER OPTIONAL
-  }
-END      </pre>
-      <p>This file (<c>People.asn</c>) must be compiled before it can be
-        used. 
-        The ASN.1 compiler checks that the syntax is correct and that the 
-        text represents proper ASN.1 code before generating an abstract
-        syntax tree. The code-generator then uses the abstract syntax 
-        tree in order to generate code.
-        </p>
-      <p>The generated Erlang  files will be placed in the current directory or
-        in the directory specified with the <c>{outdir,Dir}</c> option.
-        The following shows how the compiler
-        can be called from the  Erlang shell:</p>
-      <pre>
-1><input> asn1ct:compile("People", [ber]).</input>
-ok
-2>      </pre>
-
-      <p>The <c>verbose</c> option can be given to have information
-      about the generated files printed:</p>
-      <pre>
-2><input> asn1ct:compile("People", [ber,verbose]).</input>
-Erlang ASN.1 compiling "People.asn" 
---{generated,"People.asn1db"}--
---{generated,"People.hrl"}--
---{generated,"People.erl"}--
-ok
-3>      </pre>
-
-      <p>The ASN.1 module <c>People</c> is now accepted and the
-      abstract syntax tree is saved in the <c>People.asn1db</c> file;
-      the generated Erlang code is compiled using the Erlang compiler
-      and loaded into the Erlang run-time system. Now there is an API
-      for <c>encode/2</c> and <c>decode/2</c> in the module
-      <c>People</c>, which is invoked by: <br></br>
-      <c><![CDATA['People':encode(<Type name>, <Value>)]]></c>
-      <br></br>
-        or        <br></br>
-<c><![CDATA['People':decode(<Type name>, <Value>)]]></c></p>
-
-      <p>Assume there is a network
-        application which receives instances of the  ASN.1 defined
-        type Person,  modifies and sends them back again:</p>
-      <code type="none">
-receive
-   {Port,{data,Bytes}} ->
-       case 'People':decode('Person',Bytes) of
-           {ok,P} ->
-               {ok,Answer} = 'People':encode('Person',mk_answer(P)),
-               Port ! {self(),{command,Answer}};
-           {error,Reason} ->
-               exit({error,Reason})
-       end
-    end,      </code>
-      <p>In the example above, a  series of bytes is received from an
-        external source and the bytes are then decoded into a valid
-        Erlang term. This was achieved with the call
-        <c>'People':decode('Person',Bytes)</c> which   returned
-        an Erlang value of the ASN.1 type <c>Person</c>.  Then an answer was
-        constructed  and encoded using
-        <c>'People':encode('Person',Answer)</c> which takes an
-        instance of a defined ASN.1 type and transforms it to a
-        binary according to the BER or PER encoding rules.
-                <br></br>
-The encoder and the decoder can also be run from
-        the shell.</p>
-      <pre>
-2> <input>Rockstar = {'Person',"Some Name",roving,50}.</input>
-{'Person',"Some Name",roving,50}
-3> <input>{ok,Bin} = 'People':encode('Person',Rockstar).</input>
-{ok,&lt;&lt;243,17,19,9,83,111,109,101,32,78,97,109,101,2,1,2,
-      2,1,50&gt;&gt;}
-4> <input>{ok,Person} = 'People':decode('Person',Bin).</input>
-{ok,{'Person',"Some Name",roving,50}}
-5>      </pre>
-    </section>
-
-    <section>
-      <title>Module dependencies</title>
-      <p>It is common that ASN.1 modules import defined types, values and
-        other entities from another ASN.1 module.</p>
-      <p>Earlier versions of the ASN.1 compiler required that modules that
-        were imported from had to be compiled before the module that
-        imported. This caused problems when ASN.1 modules had circular
-        dependencies.</p>
-      <p>Referenced modules are now parsed when the compiler finds an
-        entity that is imported. There will not be any code generated for
-        the referenced module. However, the compiled module rely on
-        that the referenced modules also will be compiled.</p>
-    </section>
-  </section>
-
-  <section>
-    <title>The Asn1 Application User Interface</title>
-    <p>The Asn1 application provides two separate user interfaces:</p>
-    <list type="bulleted">
-      <item>
-        <p>The module <c>asn1ct</c> which provides the compile-time functions 
-          (including the compiler).</p>
-      </item>
-      <item>
-        <p>The module <c>asn1rt_nif</c> which provides the run-time functions
-	for the ASN.1 decoder for the BER back-end.</p>
-      </item>
-    </list>
-    <p>The reason for the division  of the interface into  compile-time 
-      and  run-time 
-      is that only run-time modules (<c>asn1rt*</c>) need to be loaded in
-      an embedded system. 
-      </p>
-
-    <section>
-      <title>Compile-time Functions</title>
-      <p>The ASN.1 compiler can be invoked directly from the command-line
-        by means of the <c>erlc</c> program. This is convenient when compiling
-        many ASN.1 files from the command-line or when using Makefiles.
-        Here are some examples of how the <c>erlc</c> command can be used to invoke the
-        ASN.1 compiler:</p>
-      <pre>
-erlc Person.asn
-erlc -bper Person.asn
-erlc -bber ../Example.asn
-erlc -o ../asnfiles -I ../asnfiles -I /usr/local/standards/asn1 Person.asn      </pre>
-      <p>The useful options for the ASN.1 compiler are:</p>
-      <taglist>
-        <tag><c>-b[ber | per | uper]</c></tag>
-        <item>
-          <p>Choice of encoding rules, if omitted <c>ber</c> is the
-          default.</p>
-        </item>
-        <tag><c>-o OutDirectory</c></tag>
-        <item>
-          <p>Where to put the generated files, default is the current
-            directory.</p>
-        </item>
-        <tag><c>-I IncludeDir</c></tag>
-        <item>
-          <p>Where to search for <c>.asn1db</c> files and ASN.1
-            source specs in order to resolve references to other
-            modules. This option can be repeated many times if there
-            are several places to search in.  The compiler will always
-            search the current directory first.</p>
-        </item>
-        <tag><c>+der</c></tag>
-        <item>
-          <p>DER encoding rule. Only when using <c>-ber</c> option.</p>
-        </item>
-        <tag><c>+asn1config</c></tag>
-        <item>
-          <p>This functionality works together with the
-            <c>ber</c> option. It enables the
-            specialized decodes, see the <seealso marker="asn1_spec">Specialized Decode</seealso> chapter.
-            </p>
-        </item>
-        <tag><c>+undec_rest</c></tag>
-        <item>
-          <p>A buffer that holds a message being decoded may also have
-          trailing bytes. If those trailing bytes are important they
-          can be returned along with the decoded value by compiling
-          the ASN.1 specification with the <c>+undec_rest</c> option.
-          The return value from the decoder will be
-          <c>{ok,Value,Rest}</c> where <c>Rest</c> is a binary
-          containing the trailing bytes.</p>
-        </item>
-        <tag><c>+'Any Erlc Option'</c></tag>
-        <item>
-          <p>You may add any option to the Erlang compiler when
-            compiling the generated Erlang files. Any option
-            unrecognized by the ASN.1 compiler will be passed to the
-            Erlang compiler.</p>
-        </item>
-      </taglist>
-      <p>For a complete description of <c>erlc</c> see Erts Reference Manual.</p>
-      <p>The compiler and other compile-time functions can also be invoked from 
-        the Erlang shell. Below follows a brief
-        description of the primary functions, for a
-        complete description of each function see 
-        <seealso marker="asn1ct">the Asn1 Reference Manual</seealso>, the
-        <c>asn1ct</c> module.</p>
-      <p>The compiler is invoked by using <c>asn1ct:compile/1</c> with
-        default options, or <c>asn1ct:compile/2</c> if explicit options
-        are given.
-        Example:</p>
-      <pre>
-asn1ct:compile("H323-MESSAGES.asn1").      </pre>
-      <p>which equals:</p>
-      <pre>
-asn1ct:compile("H323-MESSAGES.asn1",[ber]).      </pre>
-      <p>If one wants PER encoding:</p>
-      <pre>
-asn1ct:compile("H323-MESSAGES.asn1",[per]).      </pre>
-      <p>The generic encode and decode functions can be invoked like this:</p>
-      <pre>
-'H323-MESSAGES':encode('SomeChoiceType',{call,"octetstring"}).
-'H323-MESSAGES':decode('SomeChoiceType',Bytes).      </pre>
-    </section>
-
-    <section>
-      <title>Run-time Functions</title>
-      <p>When an ASN.1 specification is compiled with the <c>ber</c>
-      option, the module <c>asn1rt_nif</c> module and the NIF library in
-      <c>asn1/priv_dir</c> will be needed at run-time.</p>
-      <p>By invoking the function <c>info/0</c> in a generated module, one
-        gets information about which compiler options were used.</p>
-    </section>
-
-    <section>
-      <title>Errors</title>
-      <p>Errors detected at
-        compile time appear on the screen together with
-        a line number indicating where in the source file the error 
-        was detected. If no errors are found, an Erlang ASN.1 module will
-        be created.</p>
-      <p>The run-time encoders and decoders execute within a catch and
-      returns <c>{ok, Data}</c> or
-        <c>{error, {asn1, Description}}</c> where
-        <c>Description</c> is
-        an Erlang term describing the error. </p>
-    </section>
-  </section>
-
-  <section>
-    <marker id="inlineExamples"></marker>
-    <title>Multi-file Compilation</title>
-    <p>There are various reasons for using multi-file compilation:</p>
-    <list type="bulleted">
-      <item>You want to choose the name for the generated module,
-      perhaps because you need to compile the same specs for
-      different encoding rules.</item>
-      <item>You want only one resulting module.</item>
-    </list>
-    <p>You need to specify which ASN.1 specs you will
-      compile in a module that must have the extension
-      <c>.set.asn</c>. You chose name of the module and provide the
-      names of the ASN.1 specs. For instance, if you have the specs
-      <c>File1.asn</c>, <c>File2.asn</c> and <c>File3.asn</c> your
-      module <c>MyModule.set.asn</c> will look like:</p>
-    <pre>
-File1.asn
-File2.asn
-File3.asn    </pre>
-    <p>If you compile with:</p>
-    <code type="none">
-~> erlc MyModule.set.asn    </code>
-    <p>the result will be one merged module <c>MyModule.erl</c> with
-      the generated code from the three ASN.1 specs.
-      </p>
-  </section>
-
-  <section>
-    <title>A quick note about tags</title>
-
-    <p>Tags used to be important for all users of ASN.1, because it
-    was necessary to manually add tags to certain constructs in order
-    for the ASN.1 specification to be valid. Here is an example of
-    an old-style specification:</p>
-
-    <pre>
-Tags DEFINITIONS ::=
-BEGIN
-  Afters ::= CHOICE { cheese [0] IA5String,
-                      dessert [1] IA5String }
-END </pre>
-
-    <p>Without the tags (the numbers in square brackets) the ASN.1
-    compiler would refuse to compile the file.</p>
-
-    <p>In 1994 the global tagging mode AUTOMATIC TAGS was introduced.
-    By putting AUTOMATIC TAGS in the module header, the ASN.1 compiler
-    will automatically add tags when needed. Here is the same
-    specification in AUTOMATIC TAGS mode:</p>
-
-    <pre>
-Tags DEFINITIONS AUTOMATIC TAGS ::=
-BEGIN
-  Afters ::= CHOICE { cheese IA5String,
-                      dessert IA5String }
-END
-</pre>
-
-    <p>Tags will not be mentioned any more in this manual.</p>
-  </section>
-
-  <section>
-    <marker id="ASN1Types"></marker>
-    <title>The ASN.1 Types</title>
-    <p>This section describes the ASN.1 types including their
-      functionality, purpose and how values are assigned in Erlang.
-      </p>
-    <p>ASN.1 has both primitive and constructed types:</p>
-    <p></p>
-    <table>
-      <row>
-        <cell align="left" valign="middle"><em>Primitive types</em></cell>
-        <cell align="left" valign="middle"><em>Constructed types</em></cell>
-      </row>
-      <row>
-        <cell align="left" valign="middle"><seealso marker="#BOOLEAN">BOOLEAN</seealso></cell>
-        <cell align="left" valign="middle"><seealso marker="#SEQUENCE">SEQUENCE</seealso></cell>
-      </row>
-      <row>
-        <cell align="left" valign="middle"><seealso marker="#INTEGER">INTEGER</seealso></cell>
-        <cell align="left" valign="middle"><seealso marker="#SET">SET</seealso></cell>
-      </row>
-      <row>
-        <cell align="left" valign="middle"><seealso marker="#REAL">REAL</seealso></cell>
-        <cell align="left" valign="middle"><seealso marker="#CHOICE">CHOICE</seealso></cell>
-      </row>
-      <row>
-        <cell align="left" valign="middle"><seealso marker="#NULL">NULL</seealso></cell>
-        <cell align="left" valign="middle"><seealso marker="#SOF">SET OF and SEQUENCE OF</seealso></cell>
-      </row>
-      <row>
-        <cell align="left" valign="middle"><seealso marker="#ENUMERATED">ENUMERATED</seealso></cell>
-        <cell align="left" valign="middle"><seealso marker="#ANY">ANY</seealso></cell>
-      </row>
-      <row>
-        <cell align="left" valign="middle"><seealso marker="#BIT STRING">BIT STRING</seealso></cell>
-        <cell align="left" valign="middle"><seealso marker="#ANY">ANY DEFINED BY</seealso></cell>
-      </row>
-      <row>
-        <cell align="left" valign="middle"><seealso marker="#OCTET STRING">OCTET STRING</seealso></cell>
-        <cell align="left" valign="middle"><seealso marker="#NegotiationTypes">EXTERNAL</seealso></cell>
-      </row>
-      <row>
-        <cell align="left" valign="middle"><seealso marker="#Character Strings">Character Strings</seealso></cell>
-        <cell align="left" valign="middle"><seealso marker="#NegotiationTypes">EMBEDDED PDV</seealso></cell>
-      </row>
-      <row>
-        <cell align="left" valign="middle"><seealso marker="#OBJECT IDENTIFIER">OBJECT IDENTIFIER</seealso></cell>
-        <cell align="left" valign="middle"><seealso marker="#NegotiationTypes">CHARACTER STRING</seealso></cell>
-      </row>
-      <row>
-        <cell align="left" valign="middle"><seealso marker="#Object Descriptor">Object Descriptor</seealso></cell>
-        <cell align="left" valign="middle"></cell>
-      </row>
-      <row>
-        <cell align="left" valign="middle"><seealso marker="#The TIME types">The TIME types</seealso></cell>
-        <cell align="left" valign="middle"></cell>
-      </row>
-      <tcaption>The supported ASN.1 types</tcaption>
-    </table>
-    <marker id="TypeNameValue"></marker>
-    <note>
-      <p>Values of each ASN.1 type has its own representation in Erlang
-        described in the following subsections. Users shall provide
-        these values for encoding according to the representation, as
-        in the example below.</p>
-    </note>
-    <pre>
-Operational ::= BOOLEAN --ASN.1 definition    </pre>
-    <p>In Erlang code it may look like:</p>
-    <pre>
-Val = true,
-{ok,Bytes} = MyModule:encode('Operational', Val),    </pre>
-    <p>Below follows a description of how
-      values of each type can be represented in Erlang. 
-      </p>
-
-    <section>
-      <marker id="BOOLEAN"></marker>
-      <title>BOOLEAN</title>
-      <p>Booleans in ASN.1  express values that can be either 
-        TRUE or FALSE.
-        The meanings assigned to TRUE or FALSE is beyond the scope 
-        of this text.          <br></br>
-
-        In ASN.1 it is possible to have:</p>
-      <pre>
-Operational ::= BOOLEAN
-      </pre>
-      <p>Assigning a value to the type Operational in Erlang is possible by 
-        using the following Erlang code:</p>
-      <code type="erl">
-Myvar1 = true,
-      </code>
-      <p>Thus, in Erlang the atoms <c>true</c> and <c>false</c> are used
-        to encode a boolean value.</p>
-    </section>
-
-    <section>
-      <marker id="INTEGER"></marker>
-      <title>INTEGER</title>
-      <p>ASN.1 itself specifies indefinitely large integers, and the Erlang 
-        systems with versions 4.3 and higher, support very large 
-        integers, in practice indefinitely large integers.</p>
-      <p>The concept of sub-typing can be applied to integers as well
-        as to  other ASN.1 types. The details of sub-typing are not
-        explained here, for further info see  [<cite id="X.680"></cite>]. A variety 
-        of syntaxes are allowed when defining a  type as an integer:</p>
-      <pre>
-T1 ::= INTEGER
-T2 ::= INTEGER (-2..7)
-T3 ::= INTEGER (0..MAX)
-T4 ::= INTEGER (0&lt;..MAX)
-T5 ::= INTEGER (MIN&lt;..-99)
-T6 ::= INTEGER {red(0),blue(1),white(2)}
-      </pre>
-      <p>The Erlang representation of an ASN.1 INTEGER is an integer or
-        an atom if a so called <c>Named Number List</c> (see T6 above)
-        is specified.</p>
-      <p>Below is an example of Erlang code which assigns values for the
-        above types: </p>
-      <pre>
-T1value = 0,
-T2value = 6,
-T6value1 = blue,
-T6value2 = 0,
-T6value3 = white
-      </pre>
-      <p>The Erlang variables above are now bound to valid instances of
-        ASN.1 defined types. This style of value can be passed directly 
-        to the encoder for transformation into a series of bytes.</p>
-      <p>The decoder will return an atom if the value corresponds to a
-        symbol in the Named Number List.</p>
-    </section>
-
-    <section>
-      <marker id="REAL"></marker>
-      <title>REAL</title>
-      <p>The following ASN.1 type is used for real numbers:</p>
-      <pre>
-R1 ::= REAL
-      </pre>
-      <p>It can be assigned a value in Erlang as:</p>
-      <pre>
-R1value1 = "2.14",
-R1value2 = {256,10,-2},
-      </pre>
-      <p>In the last line note that the tuple {256,10,-2} is the real number
-        2.56 in a special notation, which will encode faster than simply 
-        stating the number as <c>"2.56"</c>. The arity three tuple is
-        <c>{Mantissa,Base,Exponent}</c> i.e. Mantissa * Base^Exponent.</p>
-    </section>
-
-    <section>
-      <marker id="NULL"></marker>
-      <title>NULL</title>
-      <p>Null is suitable in cases where supply and recognition of a value 
-        is important but the actual value is not.</p>
-      <pre>
-Notype ::= NULL
-      </pre>
-      <p>The NULL type can be assigned in Erlang:</p>
-      <pre>
-N1 = 'NULL',
-      </pre>
-      <p>The actual value is the quoted atom 'NULL'.</p>
-    </section>
-
-    <section>
-      <marker id="ENUMERATED"></marker>
-      <title>ENUMERATED</title>
-      <p>The enumerated type can be used, when the value we wish to 
-        describe, may only take one of a set of predefined values.</p>
-      <pre>
-DaysOfTheWeek ::= ENUMERATED { 
-    sunday(1),monday(2),tuesday(3),
-    wednesday(4),thursday(5),friday(6),saturday(7) }
-      </pre>
-      <p>For example to assign a weekday value in Erlang use the same atom
-        as in the <c>Enumerations</c> of the type definition:</p>
-      <pre>
-Day1 = saturday,
-      </pre>
-      <p>The enumerated type is very similar to an integer type, when
-        defined with a set of predefined values. An enumerated type
-        differs from an integer in that it may only have  specified
-        values, whereas an integer can also have any other value.</p>
-    </section>
-
-    <section>
-      <marker id="BIT STRING"></marker>
-      <title>BIT STRING</title>
-      <p>The BIT STRING type can be used to model information which
-        is made up of  arbitrary length series of bits. It is intended
-        to be used for a selection of flags, not for binary files.        <br></br>
-
-        In ASN.1 BIT STRING definitions may look like:
-        </p>
-      <pre>
-Bits1 ::= BIT STRING
-Bits2 ::= BIT STRING {foo(0),bar(1),gnu(2),gnome(3),punk(14)}
-      </pre>
-      <p>There are two notations available for representation of
-        BIT STRING values in Erlang and as input to the encode functions.</p>
-      <list type="ordered">
-	<item>A bitstring. By default, a BIT STRING with no
-	  symbolic names will be decoded to an Erlang bitstring.</item>
-        <item>A list of atoms corresponding to atoms in the <c>NamedBitList</c> 
-         in the BIT STRING definition. A BIT STRING with symbolic
-	 names will always be decoded to this format.</item>
-      </list>
-      <p>Example:</p>
-      <pre>
-Bits1Val1 = &lt;&lt;0:1,1:1,0:1,1:1,1:1&gt;&gt;,
-Bits2Val1 = [gnu,punk],
-Bits2Val2 = &lt;&lt;2#1110:4&gt;&gt;,
-Bits2Val3 = [bar,gnu,gnome],
-      </pre>
-      <p><c>Bits2Val2</c> and <c>Bits2Val3</c> above denote the same value.</p>
-      <p><c>Bits2Val1</c> is assigned symbolic values. The assignment means 
-        that the bits corresponding to <c>gnu</c> and <c>punk</c> i.e. bits
-        2 and 14 are set to 1 and the rest set to 0. The symbolic values
-        appear as a list of values. If a named value appears, which is not
-        specified in the type definition, a run-time error will occur.</p>
-      <p>BIT STRINGS may also be sub-typed with, for example, a SIZE
-        specification:</p>
-      <pre>
-Bits3 ::= BIT STRING (SIZE(0..31))      </pre>
-      <p>This means that no bit higher than 31 can ever be set.</p>
-
-      <section>
-	<title>Deprecated representations for BIT STRING</title>
-	<p>In addition to the representations described above, the
-	following deprecated representations are available if the
-	specification has been compiled with the
-	<c>legacy_erlang_types</c> option:</p>
-	<list type="ordered">
-	  <item>A list of binary digits (0 or 1). This format is
-	  accepted as input to the encode functions, and a BIT STRING
-	  will be decoded to this format if the
-	  <em>legacy_bit_string</em> option has been given.
-	  </item>
-	  <item>As <c>{Unused,Binary}</c> where <c>Unused</c> denotes
-	  how many trailing zero-bits 0 to 7 that are unused in the
-	  least significant byte in <c>Binary</c>. This format is
-	  accepted as input to the encode functions, and a <c>BIT
-	  STRING</c> will be decoded to this format if
-	  <em>compact_bit_string</em> has been given.
-	  </item>
-	  <item>A hexadecimal number (or an integer). This format
-	  should be avoided, since it is easy to misinterpret a BIT
-	  STRING value in this format.
-	  </item>
-	</list>
-      </section>
-    </section>
-
-    <section>
-      <marker id="OCTET STRING"></marker>
-      <title>OCTET STRING</title>
-      <p>The OCTET STRING is the simplest of all ASN.1 types. The
-      OCTET STRING only moves or transfers e.g. binary files or other
-      unstructured information complying to two rules.  Firstly, the
-      bytes consist of octets and secondly, encoding is not
-      required.</p>
-      <p>It is possible to have the following ASN.1 type definitions:</p>
-      <pre>
-O1 ::= OCTET STRING
-O2 ::= OCTET STRING (SIZE(28))      </pre>
-      <p>With the following example assignments in Erlang:</p>
-      <pre>
-O1Val = &lt;&lt;17,13,19,20,0,0,255,254&gt;&gt;,
-O2Val = &lt;&lt;"must be exactly 28 chars...."&gt;&gt;,</pre>
-       <p>By default, an OCTET STRING is always represented as
-       an Erlang binary. If the specification has been compiled with
-       the <c>legacy_erlang_types</c> option, the encode functions
-       will accept both lists and binaries, and the decode functions
-       will decode an OCTET STRING to a list.</p>
-    </section>
-
-    <section>
-      <marker id="Character Strings"></marker>
-      <title>Character Strings</title>
-      <p>ASN.1 supports a wide variety of character sets. The main difference
-        between OCTET STRINGS and the Character strings is that OCTET
-        STRINGS have no imposed semantics on the bytes delivered.</p>
-      <p>However, when using for instance the IA5String (which closely
-        resembles ASCII)  the byte 65 (in decimal
-        notation)  <em>means</em> the character 'A'.
-        </p>
-      <p>For example, if a defined type is to be a VideotexString and
-        an octet is received with the unsigned integer value X, then
-        the octet should be interpreted as specified in the standard
-        ITU-T T.100,T.101. 
-        </p>
-      <p>The  ASN.1 to Erlang compiler
-        will not determine the correct interpretation  of each BER  
-        (Basic Encoding Rules) string octet value with different
-        Character strings. Interpretation of octets is the
-        responsibility of the application. Therefore, from the BER
-        string point of view, octets appear to be very similar to
-        character strings and are compiled in the same way.
-        </p>
-      <p>It should be noted that when PER (Packed Encoding Rules) is
-        used, there is a significant difference in the encoding scheme 
-        between OCTET STRINGS and other strings. The constraints 
-        specified for a type are especially important for PER, where
-        they affect the encoding.
-        </p>
-      <p>Here are some examples:</p>
-      <pre>
-Digs ::= NumericString (SIZE(1..3))
-TextFile ::= IA5String (SIZE(0..64000))      </pre>
-      <p>with corresponding Erlang assignments:</p>
-      <pre>
-DigsVal1 = "456",
-DigsVal2 = "123",
-TextFileVal1 = "abc...xyz...",
-TextFileVal2 = [88,76,55,44,99,121 .......... a lot of characters here ....]        </pre>
-      <p>The Erlang representation for "BMPString" and
-        "UniversalString" is either a list of ASCII values or a list
-        of quadruples. The quadruple representation associates to the
-        Unicode standard representation of characters. The ASCII
-        characters are all represented by quadruples beginning with
-        three zeros like {0,0,0,65} for the 'A' character. When
-        decoding a value for these strings the result is a list of
-        quadruples, or integers when the value is an ASCII character.</p>
-
-        <p>The following example shows how it works. We have the following
-	specification in the file <c>PrimStrings.asn1</c>.</p>
-       <pre>
-PrimStrings DEFINITIONS AUTOMATIC TAGS ::=
-BEGIN
-   BMP ::= BMPString
-END
-       </pre>
-
-       <p>Encoding and decoding some strings:</p>
-
-      <pre>
-1> <input>asn1ct:compile('PrimStrings', [ber]).</input>
-ok
-2> <input>{ok,Bytes1} = 'PrimStrings':encode('BMP', [{0,0,53,53},{0,0,45,56}]).</input>
-{ok,&lt;&lt;30,4,53,54,45,56>>}
-3> <input>'PrimStrings':decode('BMP', Bytes1).</input>
-{ok,[{0,0,53,53},{0,0,45,56}]}
-4> <input>{ok,Bytes2} = 'PrimStrings':encode('BMP', [{0,0,53,53},{0,0,0,65}]).</input>
-{ok,&lt;&lt;30,4,53,53,0,65>>}
-5> <input>'PrimStrings':decode('BMP', Bytes2).</input>
-{ok,[{0,0,53,53},65]}
-6> <input>{ok,Bytes3} = 'PrimStrings':encode('BMP', "BMP string").</input>
-{ok,&lt;&lt;30,20,0,66,0,77,0,80,0,32,0,115,0,116,0,114,0,105,0,110,0,103>>}
-7> <input>'PrimStrings':decode('BMP', Bytes3).</input>
-{ok,"BMP string"}      </pre>
-
-      <p>The UTF8String type is represented as a UTF-8 encoded binary in
-      Erlang. Such binaries can be created directly using the binary syntax
-      or by converting from a list of Unicode code points using the
-      <c>unicode:characters_to_binary/1</c> function.</p>
-
-      <p>Here are some examples showing how UTF-8 encoded binaries can
-      be created and manipulated:</p>
-
-      <pre>
-1> <input>Gs = "Мой маленький Гном".</input>
-[1052,1086,1081,32,1084,1072,1083,1077,1085,1100,1082,1080,
- 1081,32,1043,1085,1086,1084]
-2> <input>Gbin = unicode:characters_to_binary(Gs).</input>
-&lt;&lt;208,156,208,190,208,185,32,208,188,208,176,208,187,208,
-  181,208,189,209,140,208,186,208,184,208,185,32,208,147,
-  208,...>>
-3> <input>Gbin = &lt;&lt;"Мой маленький Гном"/utf8>>.</input>
-&lt;&lt;208,156,208,190,208,185,32,208,188,208,176,208,187,208,
-  181,208,189,209,140,208,186,208,184,208,185,32,208,147,
-  208,...>>
-4> <input>Gs = unicode:characters_to_list(Gbin).</input>
-[1052,1086,1081,32,1084,1072,1083,1077,1085,1100,1082,1080,
- 1081,32,1043,1085,1086,1084]
-      </pre>
-
-      <p>See the <seealso marker="stdlib:unicode">unicode</seealso> module
-      for more details.</p>
-
-      <p>In the following example we will use this ASN.1 specification:</p>
-      <pre>
-UTF DEFINITIONS AUTOMATIC TAGS ::=
-BEGIN
-   UTF ::= UTF8String
-END
-      </pre>
-
-      <p>Encoding and decoding a string with Unicode characters:</p>
-
-      <pre>
-5> <input>asn1ct:compile('UTF', [ber]).</input>
-ok
-6> <input>{ok,Bytes1} = 'UTF':encode('UTF', &lt;&lt;"Гном"/utf8>>).</input>
-{ok,&lt;&lt;12,8,208,147,208,189,208,190,208,188>>}
-7> <input>{ok,Bin1} = 'UTF':decode('UTF', Bytes1).</input>
-{ok,&lt;&lt;208,147,208,189,208,190,208,188>>}
-8> <input>io:format("~ts\n", [Bin1]).</input>
-Гном
-ok
-9> <input>unicode:characters_to_list(Bin1).</input>
-[1043,1085,1086,1084]
-      </pre>
-    </section>
-
-    <section>
-      <marker id="OBJECT IDENTIFIER"></marker>
-      <title>OBJECT IDENTIFIER</title>
-      <p>The OBJECT IDENTIFIER is used whenever a unique identity is required.
-        An ASN.1 module, a transfer syntax, etc. is identified with an
-        OBJECT IDENTIFIER. Assume the example below:</p>
-      <pre>
-Oid ::= OBJECT IDENTIFIER
-      </pre>
-      <p>Therefore, the example below is a valid Erlang instance of the 
-        type 'Oid'.</p>
-      <pre>
-OidVal1 = {1,2,55},
-      </pre>
-      <p>The OBJECT IDENTIFIER value is simply a tuple with the
-        consecutive values which must be integers. 
-        </p>
-      <p>The first value is limited to the values 0, 1 or 2 and the
-        second value must be in the range 0..39 when the first value
-        is 0 or 1.
-        </p>
-      <p>The OBJECT IDENTIFIER is a very important type and it is
-        widely used within different standards to uniquely identify
-        various objects. In [<cite id="DUBUISSON"></cite>], there is an 
-        easy-to-understand description of the usage of 
-        OBJECT IDENTIFIER.</p>
-      <p></p>
-    </section>
-
-    <section>
-      <marker id="Object Descriptor"></marker>
-      <title>Object Descriptor</title>
-      <p>Values of this type can be assigned a value as an ordinary string
-      like this:</p>
-
-      <pre>
-      "This is the value of an Object descriptor"</pre>
-    </section>
-
-    <section>
-      <marker id="The TIME types"></marker>
-      <title>The TIME Types</title>
-      <p>Two different time types are defined within ASN.1, Generalized
-        Time and UTC (Universal Time Coordinated), both are assigned a
-        value as an ordinary string within double quotes i.e.
-        "19820102070533.8".</p>
-      <p>In case of DER encoding the compiler does not check the validity
-        of the time values. The DER requirements upon those strings is 
-        regarded as a matter for the application to fulfill.</p>
-    </section>
-
-    <section>
-      <marker id="SEQUENCE"></marker>
-      <title>SEQUENCE</title>
-      <p>The structured types of ASN.1 are constructed from other types 
-        in a manner similar to the concepts of array and struct in  C.
-                <br></br>
- A SEQUENCE in ASN.1 is
-        comparable with a struct in C and a record in Erlang. 
-        A SEQUENCE may be defined as:</p>
-      <pre>
-Pdu ::= SEQUENCE {
-   a INTEGER,
-   b REAL,
-   c OBJECT IDENTIFIER,
-   d NULL }      </pre>
-      <p>This is a 4-component structure called 'Pdu'. The major format 
-        for representation of SEQUENCE in Erlang is the record format. 
-        For each SEQUENCE and <c>SET</c> in an ASN.1 module an Erlang 
-        record declaration is generated. For <c>Pdu</c> above, a record 
-        like this is defined:</p>
-      <pre>
--record('Pdu',{a, b, c, d}).      </pre>
-      <p>The record declarations for a module <c>M</c> are placed in a 
-        separate <c>M.hrl</c> file.</p>
-      <p>Values can be assigned in Erlang as shown below:</p>
-      <pre>
-MyPdu = #'Pdu'{a=22,b=77.99,c={0,1,2,3,4},d='NULL'}.      </pre>
-      <p>The decode functions will return a record as result when decoding 
-      a <c>SEQUENCE</c> or a <c>SET</c>.</p>
-
-      <p>A <c>SEQUENCE</c> and a <c>SET</c> may contain a component
-      with a <c>DEFAULT</c> key word followed by the actual value that
-      is the default value. The <c>DEFAULT</c> keyword means that the
-      application doing the encoding can omit encoding of the value,
-      thus resulting in fewer bytes to send to the receiving
-      application.</p>
-
-      <p>An application can use the atom <c>asn1_DEFAULT</c> to indicate
-      that the encoding should be omitted for that position in
-      the SEQUENCE.</p>
-
-      <p>Depending on the encoding rules, the encoder may also compare
-      the given value to the default value and automatically omit the
-      encoding if they are equal. How much effort the encoder makes to
-      to compare the values depends on the encoding rules. The DER
-      encoding rules forbids encoding a value equal to the default value,
-      so it has a more thorough and time-consuming comparison than the
-      encoders for the other encoding rules.</p>
-
-      <p>In the following example we will use this ASN.1 specification:</p>
-      <pre>
-File DEFINITIONS AUTOMATIC TAGS ::=
-BEGIN
-Seq1 ::= SEQUENCE {
-    a INTEGER DEFAULT 1,
-    b Seq2 DEFAULT {aa TRUE, bb 15}
-}
-
-Seq2 ::= SEQUENCE {
-    aa BOOLEAN,
-    bb INTEGER
-}
-
-Seq3 ::= SEQUENCE {
-    bs BIT STRING {a(0), b(1), c(2)} DEFAULT {a, c}
-}
-END </pre>
-      <p>Here is an example where the BER encoder is able to omit encoding
-      of the default values:</p>
-      <pre>
-1> <input>asn1ct:compile('File', [ber]).</input>
-ok
-2> <input>'File':encode('Seq1', {'Seq1',asn1_DEFAULT,asn1_DEFAULT}).</input>
-{ok,&lt;&lt;48,0>>}
-3> <input>'File':encode('Seq1', {'Seq1',1,{'Seq2',true,15}}).</input>
-{ok,&lt;&lt;48,0>>}   </pre>
-
-     <p>And here is an example with a named BIT STRING where the BER
-     encoder will not omit the encoding:</p>
-     <pre>
-4> <input>'File':encode('Seq3', {'Seq3',asn1_DEFAULT).</input>
-{ok,&lt;&lt;48,0>>}
-5> <input>'File':encode('Seq3', {'Seq3',&lt;&lt;16#101:3>>).</input>
-{ok,&lt;&lt;48,4,128,2,5,160>>}     </pre>
-
-     <p>The DER encoder will omit the encoding for the same BIT STRING:</p>
-     <pre>
-6> <input>asn1ct:compile('File', [ber,der]).</input>
-ok
-7> <input>'File':encode('Seq3', {'Seq3',asn1_DEFAULT).</input>
-{ok,&lt;&lt;48,0>>}
-8> <input>'File':encode('Seq3', {'Seq3',&lt;&lt;16#101:3>>).</input>
-{ok,&lt;&lt;48,0>>}     </pre>
-    </section>
-
-    <section>
-      <marker id="SET"></marker>
-      <title>SET</title>
-      <p>In Erlang, the SET type is used exactly as SEQUENCE. Note
-      that if the BER or DER encoding rules are used, decoding a
-      SET is slower than decoding a SEQUENCE because the components
-      must be sorted.</p>
-    </section>
-
-    <section>
-      <title>Notes about extensibility for SEQUENCE and SET</title>
-      <p>When a SEQUENCE or SET contains an extension marker and 
-        extension components like this:</p>
-      <pre>
-SExt ::= SEQUENCE {
-           a INTEGER,
-           ...,
-           b BOOLEAN }
-      </pre>
-      <p>It means that the type may get more components in newer
-        versions of the ASN.1 spec. In this case it has got a new
-        component <c>b</c>. Thus, incoming messages that will be decoded
-        may have more or fever components than this one.  
-        </p>
-      <p>The component <c>b</c> will be treated as
-        an original component when encoding a message. In this case, as
-        it is not an optional element, it must be encoded.
-        </p>
-      <p>During decoding the <c>b</c> field of the record will get the decoded 
-        value of the <c>b</c> 
-        component if present and otherwise the value <c>asn1_NOVALUE</c>.</p>
-    </section>
-
-    <section>
-      <marker id="CHOICE"></marker>
-      <title>CHOICE</title>
-      <p>The CHOICE type is a space saver and is similar to the concept of a
-        'union' in the C language.</p>
-      <p>Assume:</p>
-      <pre>
-SomeModuleName DEFINITIONS AUTOMATIC TAGS ::=
-BEGIN
-T ::= CHOICE {
-        x REAL,
-        y INTEGER,
-        z OBJECT IDENTIFIER }
-END </pre>
-      <p>It is then possible to assign values:</p>
-      <pre>
-TVal1 = {y,17},
-TVal2 = {z,{0,1,2}},
-      </pre>
-      <p>A CHOICE value is always represented as the tuple
-        <c>{ChoiceAlternative, Val}</c> where <c>ChoiceAlternative</c>
-        is an atom denoting the selected choice alternative.
-        </p>
-
-      <section>
-        <title>Extensible CHOICE</title>
-        <p>When a CHOICE contains an extension marker and the decoder detects
-          an unknown alternative of the CHOICE the value is represented as:</p>
-        <pre>
-{asn1_ExtAlt, BytesForOpenType}
-        </pre>
-        <p>Where <c>BytesForOpenType</c> is a list of bytes constituting the 
-          encoding of the "unknown" CHOICE alternative. </p>
-      </section>
-    </section>
-
-    <section>
-      <marker id="SOF"></marker>
-      <title>SET OF and SEQUENCE OF</title>
-      <p>The SET OF and SEQUENCE OF types correspond to the concept of an array
-        found in several programming languages. The Erlang syntax for
-        both of these types is straight forward. For example:</p>
-      <pre>
-Arr1 ::= SET SIZE (5) OF INTEGER (4..9) 
-Arr2 ::= SEQUENCE OF OCTET STRING      </pre>
-      <p>We may have the following in Erlang:</p>
-      <pre>
-Arr1Val = [4,5,6,7,8],
-Arr2Val = ["abc",[14,34,54],"Octets"],      </pre>
-      <p>Please note that the definition of the SET OF type implies that 
-        the order of the components is undefined, but in practice there is 
-        no difference between SET OF and SEQUENCE OF. The ASN.1 compiler 
-        for Erlang does not randomize the order of the SET OF components 
-        before encoding.</p>
-      <p>However, in case of a value of the type <c>SET OF</c>, the DER 
-        encoding format requires the elements to be sent in ascending 
-        order of their encoding, which implies an expensive sorting 
-        procedure in run-time. Therefore it is strongly recommended to 
-        use <c>SEQUENCE OF</c> instead of <c>SET OF</c> if it is possible.</p>
-    </section>
-
-    <section>
-      <marker id="ANY"></marker>
-      <title>ANY and ANY DEFINED BY</title>
-      <p>The types <c>ANY</c> and <c>ANY DEFINED BY</c> have been removed 
-        from the standard since 1994. It is recommended not to use
-        these types any more. They may, however, exist in some old ASN.1
-        modules.
-        The idea with this type was to leave a "hole" in a definition where
-        one could put unspecified data of any kind, even non ASN.1 data.</p>
-      <p>A value of this type is encoded as an <c>open type</c>.</p>
-      <p>Instead of <c>ANY</c>/<c>ANY DEFINED BY</c> one should use
-        <c>information object class</c>, <c>table constraints</c> and
-        <c>parameterization</c>. In particular the construct
-        <c>TYPE-IDENTIFIER.@Type</c> accomplish the same as the
-        deprecated <c>ANY</c>.</p>
-      <p>See also <seealso marker="#Information Object">Information object</seealso></p>
-    </section>
-
-    <section>
-      <marker id="NegotiationTypes"></marker>
-      <title>EXTERNAL, EMBEDDED PDV and CHARACTER STRING</title>
-      <p>These types are used in presentation layer negotiation. They are
-        encoded according to their associated type, see [<cite id="X.680"></cite>].</p>
-      <p>The <c>EXTERNAL</c> type had a slightly different associated type
-        before 1994. [<cite id="X.691"></cite>] states that encoding shall follow
-        the older associate type. Therefore does generated encode/decode
-        functions convert values of the newer format to the older format
-        before encoding. This implies that it is allowed to use 
-        <c>EXTERNAL</c> type values of either format for encoding. Decoded
-        values are always returned on the newer format.</p>
-    </section>
-
-    <section>
-      <title>Embedded Named Types</title>
-      <p>The structured types previously described may very well have other named types
-        as their components. The general syntax to assign a value to the component C
-        of a named ASN.1 type T in Erlang is the record syntax
-        <c>#'T'{'C'=Value}</c>. 
-        Where <c>Value</c> may be a value of yet another type T2.</p>
-      <p>For example:</p>
-      <pre>
-EmbeddedExample DEFINITIONS AUTOMATIC TAGS ::=
-BEGIN
-B ::= SEQUENCE {
-        a Arr1,
-        b T }
-
-Arr1 ::= SET SIZE (5) OF INTEGER (4..9) 
-
-T ::= CHOICE {
-        x REAL,
-        y INTEGER,
-        z OBJECT IDENTIFIER }
-        END      </pre>
-      <p>The SEQUENCE b can be encoded like this in Erlang:</p>
-      <pre>
-1> 'EmbeddedExample':encode('B', {'B',[4,5,6,7,8],{x,"7.77"}}).
-{ok,&lt;&lt;5,56,0,8,3,55,55,55,46,69,45,50>>} </pre>
-    </section>
-  </section>
-
-  <section>
-    <title>Naming of Records in .hrl Files</title>
-    <p>When an ASN.1 specification is compiled all defined types of
-      type SET or SEQUENCE will result in a corresponding record in the
-      generated hrl file. This is because the values for SET/SEQUENCE
-      as mentioned in sections above are represented as records.</p>
-    <p>Though there are some special cases of this functionality that
-      are presented below.</p>
-
-    <section>
-      <title>Embedded Structured Types</title>
-      <p>It is also possible in ASN.1 to have components that are  themselves
-        structured types.
-        For example, it is possible to have:</p>
-      <pre>
-Emb ::= SEQUENCE {
-    a SEQUENCE OF OCTET STRING,
-    b SET {
-       a INTEGER,
-       b INTEGER DEFAULT 66},
-    c CHOICE {
-       a INTEGER,
-       b FooType } }
-
-FooType ::= [3] VisibleString      </pre>
-      <p>The following records are generated because of the type <c>Emb</c>:</p>
-      <pre>
--record('Emb,{a, b, c}).
--record('Emb_b',{a, b = asn1_DEFAULT}). % the embedded SET type
-      </pre>
-      <p>Values of the <c>Emb</c> type can be assigned like this:</p>
-      <code type="none">
-V = #'Emb'{a=["qqqq",[1,2,255]], 
-           b = #'Emb_b'{a=99}, 
-           c ={b,"Can you see this"}}.
-      </code>
-      <p>For an embedded type of type SEQUENCE/SET in a SEQUENCE/SET
-        the record name is extended with an underscore and the component
-        name. If the embedded structure is deeper with SEQUENCE, SET or
-        CHOICE types in the line, each component-/alternative-name will
-        be added to the record-name.</p>
-      <p>For example:</p>
-      <pre>
-Seq ::= SEQUENCE{
-    a CHOICE{
-        b SEQUENCE {
-           c  INTEGER
-        }
-    }
-}      </pre>
-      <p>will result in the following record:</p>
-      <pre>
--record('Seq_a_b',{c}).      </pre>
-      <p>If the structured type has a component with an embedded
-        SEQUENCE OF/SET OF which embedded type in turn is a
-        SEQUENCE/SET it will give a record with the SEQOF/SETOF
-        addition as in the following example:</p>
-      <pre>
-Seq ::= SEQUENCE {
-    a SEQUENCE OF SEQUENCE {
-           b
-               }
-    c SET OF SEQUENCE {
-           d
-               }
-}      </pre>
-      <p>This results in the records:</p>
-      <pre>
--record('Seq_a_SEQOF'{b}).
--record('Seq_c_SETOF'{d}).      </pre>
-      <p>A parameterized type should be considered as an embedded
-        type. Each time a such type is referenced an instance of it is
-        defined. Thus in the following example a record with name
-        <c>'Seq_b'</c> is generated in the .hrl file and used to hold
-        values.</p>
-      <pre>
-Seq ::= SEQUENCE {
-    b PType{INTEGER}
-}
-
-PType{T} ::= SEQUENCE{
-    id T
-}      </pre>
-    </section>
-
-    <section>
-      <title>Recursive Types</title>
-      <p>Types may refer to themselves. Suppose:</p>
-      <pre>
-Rec ::= CHOICE {
-     nothing NULL,
-     something SEQUENCE {
-          a INTEGER,
-          b OCTET STRING,
-          c Rec }}      </pre>
-      <p>This type is recursive; that is, it refers to itself. This is allowed 
-        in ASN.1 and the  ASN.1-to-Erlang compiler  supports this recursive
-        type. A value for this type is assigned in Erlang as shown below:</p>
-      <pre>
-V = {something,#'Rec_something'{a = 77, 
-                                b = "some octets here", 
-                                c = {nothing,'NULL'}}}.      </pre>
-    </section>
-  </section>
-
-  <section>
-    <title>ASN.1 Values</title>
-    <p>Values can be assigned to ASN.1 type within the ASN.1 code
-      itself, as opposed to the actions taken in the previous chapter where
-      a value was assigned to an ASN.1 type in Erlang. The full value
-      syntax of ASN.1 is supported and [X.680] describes in detail how
-      to assign values in ASN.1. Below is a short example:</p>
-    <pre>
-TT ::= SEQUENCE {
-   a INTEGER,
-   b SET OF OCTET STRING }
-
-tt TT ::= {a 77,b {"kalle","kula"}}    </pre>
-    <p>The value defined here could be used in several ways. 
-      Firstly, it could be used as the value in some DEFAULT component:</p>
-    <pre>
-SS ::= SET {
-    s OBJECT IDENTIFIER,
-    val TT DEFAULT tt }    </pre>
-    <p>It could also be used from inside an Erlang program. If the above ASN.1
-      code was defined in ASN.1 module <c>Values</c>, then the ASN.1 value
-      <c>tt</c> can be reached from Erlang as
-      a function call to <c>'Values':tt()</c> as in the example below.</p>
-    <pre>
-1> <input>Val = 'Values':tt().</input>
-{'TT',77,["kalle","kula"]}
-2> <input>{ok,Bytes} = 'Values':encode('TT',Val).</input>
-{ok,&lt;&lt;48,18,128,1,77,161,13,4,5,107,97,108,108,101,4,4,
-      107,117,108,97&gt;&gt;}
-4> <input>'Values':decode('TT',Bytes).</input>
-{ok,{'TT',77,["kalle","kula"]}}
-5>
-    </pre>
-    <p>The above example shows that a function is generated by the compiler 
-      that returns a valid Erlang representation of the value, even though
-      the value is of a complex type.</p>
-    <p>Furthermore, there is a macro generated for each value in the .hrl 
-      file. So, the defined value <c>tt</c> can also be extracted by 
-      <c>?tt</c> in application code.</p>
-  </section>
-
-  <section>
-    <title>Macros</title>
-    <p>MACRO is not supported as the the type is no longer part of the 
-      ASN.1 standard.</p>
-  </section>
-
-  <section>
-    <marker id="Information Object"></marker>
-    <title>ASN.1 Information Objects (X.681)</title>
-    <p>Information Object Classes, Information Objects and Information
-      Object Sets (in the following called classes, objects and
-      object sets respectively) are defined in the standard
-      definition [<cite id="X.681"></cite>]. In the following only a brief
-      explanation is given. </p>
-    <p>These constructs makes it possible to define open types,
-      i.e. values of that type can be of any ASN.1 type. It is also
-      possible to define relationships between different types and
-      values, since classes can hold types, values, objects, object
-      sets and other classes in its fields.
-      An Information Object Class may be defined in ASN.1 as:</p>
-    <pre>
-GENERAL-PROCEDURE ::= CLASS {
-      &amp;Message,
-      &amp;Reply               OPTIONAL,
-      &amp;Error               OPTIONAL,
-      &amp;id          PrintableString UNIQUE
-}
-WITH SYNTAX {
-      NEW MESSAGE     &amp;Message
-      [REPLY           &amp;Reply]
-      [ERROR           &amp;Error]
-      ADDRESS          &amp;id
-}    </pre>
-    <p>An object is an instance of a class and an object set is a set
-      containing objects of one specified class. A definition may look like
-      below.</p>
-    <p>The object <c>object1</c> is an instance of the CLASS 
-      GENERAL-PROCEDURE and has one type field and one fixed type value 
-      field. The object <c>object2</c> also has an OPTIONAL field ERROR,
-      which is a type field.</p>
-    <pre>
-object1 GENERAL-PROCEDURE ::= {
-    NEW MESSAGE      PrintableString
-    ADDRESS          "home"
-}
-
-object2 GENERAL-PROCEDURE ::= {
-    NEW MESSAGE INTEGER
-    ERROR INTEGER
-    ADDRESS "remote"
-}    </pre>
-    <p>The field ADDRESS is a UNIQUE field. Objects in an object set must
-      have unique values in their UNIQUE field, as in GENERAL-PROCEDURES: </p>
-    <pre>
-GENERAL-PROCEDURES GENERAL-PROCEDURE ::= {
-    object1 | object2}    </pre>
-    <p>One can not encode a class, object or object set, only referring to
-      it when defining other ASN.1 entities. Typically one refers to a
-      class and to object sets by table constraints and component
-      relation constraints [<cite id="X.682"></cite>] in ASN.1 types, as in: </p>
-    <pre>
-StartMessage  ::= SEQUENCE {
-    msgId  GENERAL-PROCEDURE.&amp;id  ({GENERAL-PROCEDURES}),
-    content GENERAL-PROCEDURE.&amp;Message ({GENERAL-PROCEDURES}{@msgId}),
-    }    </pre>
-    <p>In the type <c>StartMessage</c> the constraint following the
-      <c>content</c> field tells that in a value of type
-      <c>StartMessage</c> the value in the <c>content</c> field must
-      come from the same object that is chosen by the <c>msgId</c>
-      field.</p>
-    <p>So, the value <c>#'StartMessage'{msgId="home",content="Any Printable String"}</c> is legal to encode as a StartMessage
-      value, while the value <c>#'StartMessage'{msgId="remote", content="Some String"}</c> is illegal since the constraint
-      in StartMessage tells that when you have chosen a value from a 
-      specific object in the object set GENERAL-PROCEDURES in the 
-      msgId field you have to choose a value from that same object in
-      the content field too. In this second case it should have been 
-      any INTEGER value.</p>
-    <p><c>StartMessage</c> can in the <c>content</c> field be
-      encoded with a value of any type that an object in the
-      <c>GENERAL-PROCEDURES</c> object set has in its <c>NEW MESSAGE</c> field. This field refers to a type field
-      <c>&amp;Message</c> in the class. The <c>msgId</c> field is always
-      encoded as a PrintableString, since the field refers to a fixed type
-      in the class.</p>
-    <p>In practice, object sets are usually declared to be extensible so
-    so that more objects can be added to the set later. Extensibility is
-    indicated like this:</p>
-    <pre>
-GENERAL-PROCEDURES GENERAL-PROCEDURE ::= {
-    object1 | object2, ...}    </pre>
-     <p>When decoding a type that uses an extensible set constraint,
-     there is always the possibility that the value in the UNIQUE
-     field is unknown (i.e. the type has been encoded with a later
-     version of the ASN.1 specification). When that happens, the
-     unencoded data will be returned wrapped in a tuple like this:</p>
-
-     <pre>
-{asn1_OPENTYPE,Binary}</pre>
-     <p>where <c>Binary</c> is an Erlang binary that contains the encoded
-     data. (If the option <c>legacy_erlang_types</c> has been given,
-     just the binary will be returned.)</p>
-  </section>
-
-  <section>
-    <title>Parameterization (X.683)</title>
-    <p>Parameterization, which is defined in the standard [<cite id="X.683"></cite>], can be used when defining types, values, value
-      sets, information object classes, information objects or
-      information object sets. 
-      A part of a definition can be supplied as a parameter. For
-      instance, if a Type is used in a definition with certain
-      purpose, one want the type-name to express the intention. This
-      can be done with parameterization.</p>
-    <p>When many types (or another ASN.1 entity) only differs in some
-      minor cases, but the structure of the types are similar, only
-      one general type can be defined and the differences may be supplied
-      through parameters. </p>
-    <p>One example of use of parameterization is:</p>
-    <pre>
-General{Type} ::= SEQUENCE
-{
-     number     INTEGER,
-     string     Type
-}
-      
-T1 ::= General{PrintableString}
-
-T2 ::= General{BIT STRING}
-    </pre>
-    <p>An example of a value that can be encoded as type T1 is {12,"hello"}.</p>
-    <p>Note that the compiler does not generate encode/decode functions for
-      parameterized types, but only for the instances of the parameterized
-      types. Therefore, if a file contains the types General{}, T1 and T2 above,
-      encode/decode functions will only be generated for T1 and T2.
-      </p>
-  </section>
-</chapter>
-
diff --git a/lib/asn1/doc/src/asn1ct.xml b/lib/asn1/doc/src/asn1ct.xml
index 32ff2d52cf..30808a5ead 100644
--- a/lib/asn1/doc/src/asn1ct.xml
+++ b/lib/asn1/doc/src/asn1ct.xml
@@ -35,43 +35,45 @@
   <modulesummary>ASN.1 compiler and compile-time support functions</modulesummary>
   <description>
     <p>The ASN.1 compiler takes an ASN.1 module as input and generates a 
-      corresponding Erlang module which can encode and decode the data-types
-      specified. Alternatively the compiler takes a specification module 
-      (se below) specifying all input modules and generates one module with 
-      encode/decode functions. There are also some generic functions which
-      can be used in during development of applications which handles ASN.1
-      data (encoded as BER or PER).</p>
+      corresponding Erlang module, which can encode and decode the specified
+      data types. Alternatively, the compiler takes a specification module
+      specifying all input modules, and generates a module with 
+      encode/decode functions. In addition, some generic functions
+      can be used during development of applications that handles ASN.1
+      data (encoded as <c>BER</c> or <c>PER</c>).</p>
+
       <note>
-	<p>By default in OTP 17, the representation of the BIT STRING
-	and OCTET STRING types as Erlang terms have changed. BIT
-	STRING values are now Erlang bitstrings and OCTET STRING values
-	are binaries.  Also, an undecoded open type will now be wrapped in
-	a <c>asn1_OPENTYPE</c> tuple. For details see <seealso
-	marker="asn1_ug#BIT STRING">BIT STRING</seealso>, <seealso
-	marker="asn1_ug#OCTET STRING">OCTET STRING</seealso>, and
-	<seealso marker="asn1_ug#Information%20Object">ASN.1 Information Objects</seealso> in User's Guide.</p>
-	<p>To revert to the old representation of the types, use the
-	<c>legacy_erlang_types</c> option.</p>
+	<p>By default in OTP 17, the representation of the <c>BIT STRING</c>
+	and <c>OCTET STRING</c> types as Erlang terms were changed. <c>BIT
+	STRING</c> values are now Erlang bit strings and <c>OCTET STRING</c>
+	values are binaries. Also, an undecoded open type is now wrapped in
+	an <c>asn1_OPENTYPE</c> tuple. For details, see <seealso
+	marker="asn1_getting_started#BIT STRING">BIT STRING</seealso>, <seealso
+	marker="asn1_getting_started#OCTET STRING">OCTET STRING</seealso>, and
+	<seealso marker="asn1_getting_started#Information Object">ASN.1 Information Objects</seealso> in the User's Guide.</p>
+	<p>To revert to the old representation of the types, use option
+	<c>legacy_erlang_types</c>.</p>
       </note>
+
       <note>
-	<p>In R16, the options have been simplified. The back-end is chosen
+	<p>In OTP R16, the options were simplified. The back end is chosen
 	using one of the options <c>ber</c>, <c>per</c>, or <c>uper</c>.
-	The options <c>optimize</c>, <c>nif</c>, and <c>driver</c> options
-	are no longer necessary (and the ASN.1 compiler will print a
-	warning if they are used). The options <c>ber_bin</c>, <c>per_bin</c>,
-	and <c>uper_bin</c> options will still work, but will print a warning.
+	Options <c>optimize</c>, <c>nif</c>, and <c>driver</c> options
+	are no longer necessary (and the ASN.1 compiler generates a
+	warning if they are used). Options <c>ber_bin</c>, <c>per_bin</c>,
+	and <c>uper_bin</c> options still work, but generates a warning.
 	</p>
-	<p>Another change in R16 is that the generated <c>encode/2</c>
-	function always returns a binary.
-	The <c>encode/2</c> function for the BER back-end used to return
-	an iolist.</p>
+	<p>Another change in OTP R16 is that the generated function
+	<c>encode/2</c> always returns a binary. Function <c>encode/2</c>
+	for the <c>BER</c> back end used to return an iolist.</p>
       </note>
   </description>
+
   <funcs>
     <func>
       <name>compile(Asn1module) -> ok | {error, Reason}</name>
       <name>compile(Asn1module, Options) -> ok | {error, Reason}</name>
-      <fsummary>Compile an ASN.1 module and generate encode/decode functions according to the encoding rules BER or PER.</fsummary>
+      <fsummary>Compiles an ASN.1 module and generates encode/decode functions according to encoding rules BER or PER.</fsummary>
       <type>
         <v>Asn1module = atom() | string()</v>
         <v>Options = [Option| OldOption]</v>
@@ -85,79 +87,82 @@
         <v>Prefix = string()</v>
       </type>
       <desc>
-        <p>Compiles the ASN.1 module <c>Asn1module</c> and generates an 
-          Erlang module <c>Asn1module.erl</c> with encode and decode 
+        <p>Compiles the <c>ASN.1</c> module <c>Asn1module</c> and generates 
+          an Erlang module <c>Asn1module.erl</c> with encode and decode 
           functions for the types defined in <c>Asn1module</c>. For each 
-          ASN.1 value defined in the module an Erlang function which 
+          ASN.1 value defined in the module, an Erlang function that 
           returns the value in Erlang representation is generated.</p>
-        <p>If <c>Asn1module</c> is a filename without extension first
-          <c>".asn1"</c> is assumed, then <c>".asn"</c> and finally
+        <p>If <c>Asn1module</c> is a filename without extension, first
+          <c>".asn1"</c> is assumed, then <c>".asn"</c>, and finally
           <c>".py"</c> (to be compatible with the old ASN.1 compiler).
-          Of course <c>Asn1module</c> can be a full pathname (relative or
+          <c>Asn1module</c> can be a full pathname (relative or
           absolute) including filename with (or without) extension.
                     <marker id="asn1set"></marker>
 </p>
-        <p>If one wishes to compile a set of Asn1 modules into one
-          Erlang file with encode/decode functions one has to list all
+        <p>If it is needed to compile a set of <c>ASN.1</c> modules into an
+          Erlang file with encode/decode functions, ensure to list all
           involved files in a configuration file. This configuration
-          file must have a double extension ".set.asn", (".asn" can
-          alternatively be ".asn1" or ".py"). The input files' names
-          must be listed, within quotation marks (""), one at each row
+          file must have a double extension <c>".set.asn"</c>
+          (<c>".asn"</c> can alternatively be <c>".asn1"</c> or <c>".py"</c>).
+          List the input file names
+          within quotation marks (""), one at each row
           in the file. If the input files are <c>File1.asn</c>,
-          <c>File2.asn</c> and <c>File3.asn</c> the configuration file
-          shall look like:</p>
+          <c>File2.asn</c>, and <c>File3.asn</c>, the configuration file
+          must look as follows:</p>
         <pre>
 File1.asn
 File2.asn
-File3.asn        </pre>
-        <p>The output files will in this case get their names from the
-          configuration file. If the configuration file has the name
-          <c>SetOfFiles.set.asn</c> the name of the output files will be
-          <c>SetOfFiles.hrl, SetOfFiles.erl and SetOfFiles.asn1db</c>.</p>
-        <p>Sometimes in a system of ASN.1 modules there are different
-          default tag modes, e.g. AUTOMATIC, IMPLICIT or EXPLICIT. The
-          multi file compilation resolves the default tagging as if
+File3.asn</pre>
+        <p>The output files in this case get their names from the
+          configuration file. If the configuration file is named
+          <c>SetOfFiles.set.asn</c>, the names of the output files are
+          <c>SetOfFiles.hrl, SetOfFiles.erl, and SetOfFiles.asn1db</c>.</p>
+        <p>Sometimes in a system of <c>ASN.1</c> modules, different
+          default tag modes, for example, <c>AUTOMATIC</c>, <c>IMPLICIT</c>,
+          or <c>EXPLICIT</c>. The
+          multi-file compilation resolves the default tagging as if
           the modules were compiled separately.</p>
-        <p>Another unwanted effect that may occur in multi file compilation
-          is name collisions. The compiler solves this problem in two
-          ways: If the definitions are identical then the output module
-          keeps only one definition with the original name. But if
-          definitions only have same name and differs in the definition, 
-          then they will be renamed. The new names will be the definition
-          name and the original module name concatenated.</p>
-        <p>If any name collision have occurred the compiler reports a 
-          "NOTICE: ..." message that tells if a definition was renamed,
+        <p>Name collisions is another unwanted effect that can occur in
+          multi file-compilation. The compiler solves this problem in one
+          of two ways:</p>
+          <list type="bulleted">
+            <item>If the definitions are identical, the output module
+            keeps only one definition with the original name.</item>
+            <item>If the definitions have the same name and differs in the
+            definition, they are renamed. The new names are the definition
+            name and the original module name concatenated.</item>
+	  </list>
+        <p>If a name collision occurs, the compiler reports a 
+          <c>"NOTICE: ..."</c> message that tells if a definition was renamed,
           and the new name that must be used to encode/decode data.</p>
-
-        <p>
-	  <c>Options</c> is a list with options specific for the asn1
+        <p><c>Options</c> is a list with options specific for the <c>ASN.1</c>
 	  compiler and options that are applied to the Erlang compiler.
-	  The latter are those that not is recognized as asn1 specific.
-	  Available options are:
+	  The latter are not recognized as <c>ASN.1</c> specific. The
+	  available options are as follows:
 	</p>
 	<taglist>
           <tag><c>ber | per | uper</c></tag>
           <item>
             <p>
 	      The encoding rule to be used. The supported encoding rules
-	      are BER (Basic Encoding Rules), 
-	      PER aligned (Packed Encoding Rules) and PER unaligned. 
-	      If the encoding rule option is omitted <c>ber</c> 
+	      are Basic Encoding Rules (BER),
+	      Packed Encoding Rules (PER) aligned, and PER unaligned.
+	      If the encoding rule option is omitted, <c>ber</c> 
 	      is the default.
 	    </p>
 	    <p>
 	      The generated Erlang module always gets the same name
-	      as the ASN.1 module and as a consequence of this only one
-	    encoding rule per ASN.1 module can be used at runtime.
+	      as the <c>ASN.1</c> module. Therefore, only one
+	      encoding rule per <c>ASN.1</c> module can be used at runtime.
 	    </p>
           </item>
           <tag><c>der</c></tag>
           <item>
             <p>
-	      By this option the Distinguished Encoding Rules (DER) is chosen.
+	      With this option the Distinguished Encoding Rules (DER) is chosen.
 	      DER is regarded as a specialized variant of the BER encoding 
-              rule, therefore the <c>der</c> option only makes sense together
-	      with the <c>ber</c> option.
+              rule. Therefore, this option only makes sense together
+	      with option <c>ber</c>.
 	      This option
               sometimes adds sorting and value checks when encoding, which
               implies a slower encoding. The decoding routines are the same
@@ -167,118 +172,123 @@ File3.asn        </pre>
           <tag><c>compact_bit_string</c></tag>
           <item>
             <p>
-	      The BIT STRING type will be decoded to the "compact notation".
+	      The <c>BIT STRING</c> type is decoded to "compact notation".
 	      <em>This option is not recommended for new code.</em>
 	    </p>
-	    <p>For details see
-	      <seealso marker="asn1_ug#BIT STRING">
-		BIT STRING type section in the Users Guide
-	      </seealso>.
+	    <p>For details, see Section
+	      <seealso marker="asn1_getting_started#BIT STRING">
+		BIT STRING</seealso> in the User's Guide.
 	    </p>
-	    <p>This option implies the <c>legacy_erlang_types</c> option.</p>
+	    <p>This option implies option <c>legacy_erlang_types</c>.</p>
 	  </item>
           <tag><c>legacy_bit_string</c></tag>
           <item>
             <p>
-	      The BIT STRING type will be decoded to the legacy
-	      format, i.e. a list of zeroes and ones.
+	      The <c>BIT STRING</c> type is decoded to the legacy
+	      format, that is, a list of zeroes and ones.
 	      <em>This option is not recommended for new code.</em>
 	    </p>
-	    <p>For details see
-	      <seealso marker="asn1_ug#BIT STRING">
-		BIT STRING type section in the Users Guide
-	      </seealso>.
-	      <p>This option implies the <c>legacy_erlang_types</c> option.</p>
-	    </p>
+	    <p>For details, see Section
+	      <seealso marker="asn1_getting_started#BIT STRING">BIT STRING</seealso>
+	      in the User's Guide</p>
+	      <p>This option implies option <c>legacy_erlang_types</c>.</p>
 	  </item>
           <tag><c>legacy_erlang_types</c></tag>
           <item>
-            <p>Use the same Erlang types to represent BIT STRING and
-            OCTET STRING as in R16. For details see <seealso
-            marker="asn1_ug#BIT STRING">BIT STRING</seealso> and
-            <seealso marker="asn1_ug#OCTET STRING">OCTET
-            STRING</seealso> in User's Guide.</p>
-	    <p><em>This option is not recommended for
-            new code.</em></p>
+            <p>Use the same Erlang types to represent <c>BIT STRING</c> and
+            <c>OCTET STRING</c> as in OTP R16.</p>
+	    <p>For details, see Section <seealso
+            marker="asn1_getting_started#BIT STRING">BIT STRING</seealso> and Section
+            <seealso marker="asn1_getting_started#OCTET STRING">OCTET
+            STRING</seealso> in the User's Guide.</p>
+	    <p><em>This option is not recommended for new code.</em></p>
 	  </item>
           <tag><c>{n2n, EnumTypeName}</c></tag>
           <item>
             <p>
-	      Tells the compiler to generate functions for conversion between
-	      names (as atoms) and numbers and vice versa for the EnumTypeName specified. There can be multiple occurrences of this option in order to specify several type names. The type names must be declared as ENUMERATIONS in the ASN.1 spec.
-	      If the EnumTypeName does not exist in the ASN.1 spec the 
-	      compilation will stop with an error code.
-	      The generated conversion functions are named 
+	      Tells the compiler to generate functions for conversion
+	      between names (as atoms) and numbers and conversely for
+	      the specified <c>EnumTypeName</c>. There can be multiple
+	      occurrences of this option to specify several type names.
+	      The type names must be declared as <c>ENUMERATIONS</c> in
+	      the ASN.1 specification.</p>
+	    <p>
+	      If <c>EnumTypeName</c> does not exist in the ASN.1 specification, 
+	      the compilation stops with an error code.</p>
+	    <p>
+	      The generated conversion functions are named
 	      <c>name2num_EnumTypeName/1</c> and 
 	      <c>num2name_EnumTypeName/1</c>.
 	    </p>
           </item>
           <tag><c>noobj</c></tag>
           <item>
-            <p>Do not compile (i.e do not produce object code) the generated 
-              <c>.erl</c> file. If this option is omitted the generated Erlang module
-              will be compiled.</p>
+            <p>Do not compile (that is, do not produce object code) the
+	      generated <c>.erl</c> file. If this option is omitted, the
+	      generated Erlang module is compiled.</p>
           </item>
           <tag><c>{i, IncludeDir}</c></tag>
           <item>
             <p>Adds <c>IncludeDir</c> to the search-path for
-              <c>.asn1db</c> and asn1 source files. The compiler tries
-              to open a <c>.asn1db</c> file when a module imports
-              definitions from another ASN.1 module. If no
-              <c>.asn1db</c> file is found the asn1 source file is
-              parsed.  Several <c>{i, IncludeDir}</c> can be given.
+              <c>.asn1db</c> and <c>ASN.1</c> source files. The compiler
+              tries to open an <c>.asn1db</c> file when a module imports
+              definitions from another <c>ASN.1</c> module. If no
+              <c>.asn1db</c> file is found, the <c>ASN.1</c> source file is
+              parsed. Several <c>{i, IncludeDir}</c> can be given.
               </p>
           </item>
           <tag><c>{outdir, Dir}</c></tag>
           <item>
-            <p>Specifies the directory <c>Dir</c> where all generated files 
-              shall be placed. If omitted the files are placed in the 
-              current directory.</p>
+            <p>Specifies directory <c>Dir</c> where all generated files 
+              are to be placed. If this option is omitted, the files are
+	      placed in the current directory.</p>
           </item>
           <tag><c>asn1config</c></tag>
           <item>
-            <p>When one of the specialized decodes, exclusive or
-              selective decode, is wanted one has to give instructions in
-              a configuration file. The option <c>asn1config</c> enables
-              specialized decodes and takes the configuration file, which
-              has the same name as the ASN.1 spec but with extension
-              <c>.asn1config</c>, in concern.
+            <p>When using one of the specialized decodes, exclusive or
+              selective decode, instructions must be given in
+              a configuration file. Option <c>asn1config</c> enables
+              specialized decodes and takes the configuration file in
+	      concern. The configuration file has
+              the same name as the ASN.1 specification, but with extension
+              <c>.asn1config</c>.
               </p>
-            <p>The instructions for exclusive decode must follow the
-              <seealso marker="asn1_spec#Exclusive Instruction">instruction and grammar in the User's Guide</seealso>.
+            <p>For instructions for exclusive decode, see Section
+              <seealso marker="asn1_spec#Exclusive Instruction">Exclusive
+	      Decode</seealso> in the User's Guide.
               </p>
-            <p>You can also find the instructions for selective decode
-              in the
-              <seealso marker="asn1_spec#Selective Instruction">User's Guide</seealso>.
+            <p>For instructions for selective decode, see Section
+              <seealso marker="asn1_spec#Selective Instruction">Selective
+	      Decode</seealso> in the User's Guide.
               </p>
           </item>
           <tag><c>undec_rest</c></tag>
           <item>
-            <p>A buffer that holds a message, being decoded may
-              also have some following bytes. Now it is possible to get
-              those following bytes returned together with the decoded
-              value. If an asn1 spec is compiled with this option a tuple
-              <c>{ok, Value, Rest}</c> is returned. <c>Rest</c> may be a
+            <p>A buffer that holds a message, being decoded it can also
+              have some following bytes. Those following bytes can now
+              be returned together with the decoded value. If an
+              ASN.1 specification is compiled with this option, a tuple
+              <c>{ok, Value, Rest}</c> is returned. <c>Rest</c> can be a
               list or a binary. Earlier versions of the compiler ignored
               those following bytes.</p>
           </item>
 	  <tag><c>no_ok_wrapper</c></tag>
 	  <item>
-	    <p>If this option is given, the generated <c>encode/2</c>
-	    and <c>decode/2</c> functions will not wrap a successful
+	    <p>With this option, the generated <c>encode/2</c>
+	    and <c>decode/2</c> functions do not wrap a successful
 	    return value in an <c>{ok,...}</c> tuple. If any error
-	    occurs, there will be an exception.</p>
+	    occurs, an exception will be raised.</p>
 	  </item>
           <tag><c>{macro_name_prefix, Prefix}</c></tag>
           <item>
               <p>All macro names generated by the compiler are prefixed with
-              <c>Prefix</c>. This is useful when multiple protocols that contains
+              <c>Prefix</c>. This is useful when multiple protocols that contain
               macros with identical names are included in a single module.</p>
           </item>
           <tag><c>{record_name_prefix, Prefix}</c></tag>
           <item>
             <p>All record names generated by the compiler are prefixed with
-              <c>Prefix</c>. This is useful when multiple protocols that contains
+              <c>Prefix</c>. This is useful when multiple protocols that contain
               records with identical names are included in a single module.</p>
           </item>
           <tag><c>verbose</c></tag>
@@ -291,27 +301,27 @@ File3.asn        </pre>
             <p>Causes warnings to be treated as errors.</p>
           </item>
         </taglist>
-        <p>Any additional option that is applied will be passed to
-          the final step when the generated .erl file is compiled.
+        <p>Any more option that is applied is passed to
+          the final step when the generated <c>.erl</c> file is compiled.
           </p>
         <p>The compiler generates the following files:</p>
         <list type="bulleted">
-          <item>
-            <p><c>Asn1module.hrl</c> (if any SET or SEQUENCE is defined)</p>
+          <item><c>Asn1module.hrl</c> (if any <c>SET</c> or <c>SEQUENCE</c>
+	    is defined)
           </item>
-          <item>
-            <p><c>Asn1module.erl</c> the Erlang module with encode, decode and value functions.</p>
+          <item><c>Asn1module.erl</c> - Erlang module with encode, decode,
+	    and value functions
           </item>
-          <item>
-            <p><c>Asn1module.asn1db</c> intermediate format used by the compiler when modules IMPORTS
-              definitions from each other.</p>
+          <item><c>Asn1module.asn1db</c> - Intermediate format used by the
+	    compiler when modules <c>IMPORT</c> definitions from each other.
           </item>
         </list>
       </desc>
     </func>
+
     <func>
       <name>encode(Module, Type, Value)-> {ok, Bytes} | {error, Reason}</name>
-      <fsummary>Encode an ASN.1 value.</fsummary>
+      <fsummary>Encodes an ASN.1 value.</fsummary>
       <type>
         <v>Module = Type = atom()</v>
         <v>Value = term()</v>
@@ -319,11 +329,11 @@ File3.asn        </pre>
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Encodes <c>Value</c> of <c>Type</c> defined in the ASN.1 module 
-          <c>Module</c>. To get as fast execution as possible the
-          encode function only performs rudimentary tests that the input 
-          <c>Value</c>
-          is a correct instance of <c>Type</c>. The length of strings is for example
+        <p>Encodes <c>Value</c> of <c>Type</c> defined in the <c>ASN.1</c> module
+          <c>Module</c>. To get as fast execution as possible, the
+          encode function performs only the rudimentary tests that input 
+          <c>Value</c> is a correct instance of <c>Type</c>. So, for example,
+	  the length of strings is
           not always checked. Returns <c>{ok, Bytes}</c> if successful or
           <c>{error, Reason}</c> if an error occurred.
           </p>
@@ -331,6 +341,7 @@ File3.asn        </pre>
 	Use <c>Module:encode(Type, Value)</c> instead.</p>
       </desc>
     </func>
+
     <func>
       <name>decode(Module, Type, Bytes) -> {ok, Value} | {error, Reason}</name>
       <fsummary>Decode from Bytes into an ASN.1 value.</fsummary>
@@ -346,26 +357,37 @@ File3.asn        </pre>
 	Use <c>Module:decode(Type, Bytes)</c> instead.</p>
       </desc>
     </func>
+
     <func>
       <name>value(Module, Type) -> {ok, Value} | {error, Reason}</name>
-      <fsummary>Create an ASN.1 value for test purposes.</fsummary>
+      <fsummary>Creates an ASN.1 value for test purposes.</fsummary>
       <type>
         <v>Module = Type = atom()</v>
         <v>Value = term()</v>
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Returns an Erlang term which is an example of a valid Erlang 
-          representation of a value of the ASN.1 type <c>Type</c>. The value
+        <p>Returns an Erlang term that is an example of a valid Erlang 
+          representation of a value of the <c>ASN.1</c> type <c>Type</c>. The value
           is a random value and subsequent calls to this function will for most
           types return different values.</p>
+	<note>
+	  <p>Currently, the <c>value</c> function has many limitations.
+	  Essentially, it will mostly work for old specifications based
+	  on the 1997 standard for ASN.1, but not for most modern-style
+	  applications. Another limitation is that the <c>value</c> function
+	  may not work if options that change code generations strategies
+	  such as the options <c>macro_name_prefix</c> and
+	  <c>record_name_prefix</c> have been used.</p>
+	</note>
       </desc>
     </func>
+
     <func>
       <name>test(Module) -> ok | {error, Reason}</name>
       <name>test(Module, Type | Options) -> ok | {error, Reason}</name>
       <name>test(Module, Type, Value | Options) -> ok | {error, Reason}</name>
-      <fsummary>Perform a test of encode and decode for types in an ASN.1 module.</fsummary>
+      <fsummary>Performs a test of encode and decode for types in an ASN.1 module.</fsummary>
       <type>
         <v>Module = Type = atom()</v>
         <v>Value = term()</v>
@@ -376,9 +398,17 @@ File3.asn        </pre>
         <p>Performs a test of encode and decode of types in <c>Module</c>.
           The generated functions are called by this function.
           This function is useful during test to secure that the generated
-          encode and decode functions and the general runtime support work
-          as expected.</p>
-
+          encode and decode functions as well as the general runtime support
+          work as expected.</p>
+	<note>
+	  <p>Currently, the <c>test</c> functions have many limitations.
+	  Essentially, they will mostly work for old specifications based
+	  on the 1997 standard for ASN.1, but not for most modern-style
+	  applications. Another limitation is that the <c>test</c> functions
+	  may not work if options that change code generations strategies
+	  such as the options <c>macro_name_prefix</c> and
+	  <c>record_name_prefix</c> have been used.</p>
+	</note>
         <list type="bulleted">
           <item>
             <p><c>test/1</c> iterates over all types in <c>Module</c>.</p>
@@ -390,14 +420,12 @@ File3.asn        </pre>
             <p><c>test/3</c> tests type <c>Type</c> with <c>Value</c>.</p>
           </item>
         </list>
-
-        <p>Schematically the following happens for each type in the module:</p>
+        <p>Schematically, the following occurs for each type in the module:</p>
         <code type="none">
 {ok, Value} = asn1ct:value(Module, Type),
 {ok, Bytes} = asn1ct:encode(Module, Type, Value),
 {ok, Value} = asn1ct:decode(Module, Type, Bytes).</code>
-
-        <p>The <c>test</c> functions utilizes the <c>*.asn1db</c> files
+        <p>The <c>test</c> functions use the <c>*.asn1db</c> files
           for all included modules. If they are located in a different
           directory than the current working directory, use the include
           option to add paths. This is only needed when automatically
diff --git a/lib/asn1/doc/src/asn1rt.xml b/lib/asn1/doc/src/asn1rt.xml
index 3cf56b01ca..f5c334c2ac 100644
--- a/lib/asn1/doc/src/asn1rt.xml
+++ b/lib/asn1/doc/src/asn1rt.xml
@@ -46,7 +46,7 @@
 
     <func>
       <name>decode(Module,Type,Bytes) -> {ok,Value}|{error,Reason}</name>
-      <fsummary>Decode from bytes into an ASN.1 value.</fsummary>
+      <fsummary>Decodes from Bytes into an ASN.1 value.</fsummary>
       <type>
         <v>Module = Type = atom()</v>
         <v>Value = Reason = term()</v>
@@ -61,7 +61,7 @@
 
     <func>
       <name>encode(Module,Type,Value)-> {ok,Bytes} | {error,Reason}</name>
-      <fsummary>Encode an ASN.1 value.</fsummary>
+      <fsummary>Encodes an ASN.1 value.</fsummary>
       <type>
         <v>Module = Type = atom()</v>
         <v>Value = term()</v>
@@ -69,12 +69,12 @@
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Encodes <c>Value</c> of <c>Type</c> defined in the ASN.1
+        <p>Encodes <c>Value</c> of <c>Type</c> defined in the <c>ASN.1</c>
         module <c>Module</c>. Returns a binary if successful. To get
-        as fast execution as possible the encode function only
-        performs rudimentary tests that the input <c>Value</c> is a
-        correct instance of <c>Type</c>. The length of strings is, for
-        example, not always checked. </p>
+        as fast execution as possible, the encode function performs
+        only the rudimentary test that input <c>Value</c> is a correct
+        instance of <c>Type</c>. For example, the length of strings is
+        not always checked.</p>
 	<p>Use <c>Module:encode(Type, Value)</c> instead of this function.</p>
       </desc>
     </func>
@@ -88,23 +88,23 @@
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p><c>info/1</c> returns the version of the asn1 compiler that was
+        <p>Returns the version of the <c>ASN.1</c> compiler that was
           used to compile the module. It also returns the compiler options
-          that was used.</p>
+          that were used.</p>
 	<p>Use <c>Module:info()</c> instead of this function.</p>
       </desc>
     </func>
 
     <func>
       <name>utf8_binary_to_list(UTF8Binary) ->  {ok,UnicodeList} | {error,Reason}</name>
-      <fsummary>Transforms an utf8 encoded binary to a unicode list.</fsummary>
+      <fsummary>Transforms an UTF8 encoded binary to a unicode list.</fsummary>
       <type>
         <v>UTF8Binary = binary()</v>
         <v>UnicodeList = [integer()]</v>
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p><c>utf8_binary_to_list/1</c> Transforms a UTF8 encoded binary
+        <p>Transforms a UTF8 encoded binary
           to a list of integers, where each integer represents one
           character as its unicode value. The function fails if the binary
           is not a properly encoded UTF8 string.</p>
@@ -114,14 +114,14 @@
 
     <func>
       <name>utf8_list_to_binary(UnicodeList) ->  {ok,UTF8Binary} | {error,Reason}</name>
-      <fsummary>Transforms an unicode list ot an utf8 binary.</fsummary>
+      <fsummary>Transforms an unicode list to a UTF8 binary.</fsummary>
       <type>
         <v>UnicodeList = [integer()]</v>
         <v>UTF8Binary = binary()</v>
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p><c>utf8_list_to_binary/1</c> Transforms a list of integers,
+        <p>Transforms a list of integers,
           where each integer represents one character as its unicode
           value, to a UTF8 encoded binary.</p>
 	<p>Use <seealso marker="stdlib:unicode#characters_to_binary-1">unicode:characters_to_binary/1</seealso> instead of this function.</p>
diff --git a/lib/asn1/doc/src/part.xml b/lib/asn1/doc/src/part.xml
index 735ec2e616..104aeb1f34 100644
--- a/lib/asn1/doc/src/part.xml
+++ b/lib/asn1/doc/src/part.xml
@@ -29,11 +29,14 @@
     <file>part.sgml</file>
   </header>
   <description>
-    <p>The <em>Asn1</em> application 
-      contains modules with compile-time and run-time support for ASN.1.
+    <p>The <c>ASN.1</c> application
+      contains modules with compile-time and runtime support for
+      Abstract Syntax Notation One (ASN.1).
       </p>
   </description>
-  <xi:include href="asn1_ug.xml"/>
+  <xi:include href="asn1_introduction.xml"/>
+  <xi:include href="asn1_overview.xml"/>
+  <xi:include href="asn1_getting_started.xml"/>
   <xi:include href="asn1_spec.xml"/>
 </part>
 
diff --git a/lib/asn1/doc/src/ref_man.xml b/lib/asn1/doc/src/ref_man.xml
index 0a0ed5416a..e157f542f3 100644
--- a/lib/asn1/doc/src/ref_man.xml
+++ b/lib/asn1/doc/src/ref_man.xml
@@ -21,7 +21,7 @@
     
     </legalnotice>
 
-    <title>Asn1 Reference Manual</title>
+    <title>ASN.1 Reference Manual</title>
     <prepared>OTP Team</prepared>
     <docno></docno>
     <date>1997-10-04</date>
@@ -29,8 +29,8 @@
     <file>application.sgml</file>
   </header>
   <description>
-    <p>The <em>Asn1</em> application 
-      contains modules with compile-time and run-time support for ASN.1.</p>
+    <p>The <c>ASN.1</c> application
+      contains modules with compile-time and runtime support for ASN.1.</p>
   </description>
   <xi:include href="asn1ct.xml"/>
   <xi:include href="asn1rt.xml"/>
diff --git a/lib/asn1/src/Makefile b/lib/asn1/src/Makefile
index 6798da0072..40f440423d 100644
--- a/lib/asn1/src/Makefile
+++ b/lib/asn1/src/Makefile
@@ -206,6 +206,7 @@ $(EBIN)/asn1ct_constructed_per.beam: asn1ct_constructed_per.erl asn1_records.hrl
 $(EBIN)/asn1ct_func.beam: asn1ct_func.erl
 $(EBIN)/asn1ct_gen.beam: asn1ct_gen.erl asn1_records.hrl
 $(EBIN)/asn1ct_gen_ber_bin_v2.beam: asn1ct_gen_ber_bin_v2.erl asn1_records.hrl
+$(EBIN)/asn1ct_gen_check.beam: asn1_records.hrl
 $(EBIN)/asn1ct_gen_per.beam: asn1ct_gen_per.erl asn1_records.hrl
 $(EBIN)/asn1ct_gen_per_rt2ct.beam: asn1ct_gen_per_rt2ct.erl asn1_records.hrl
 $(EBIN)/asn1ct_imm.beam: asn1ct_imm.erl
diff --git a/lib/asn1/src/asn1.app.src b/lib/asn1/src/asn1.app.src
index 02cbba0f10..1f8805ff5e 100644
--- a/lib/asn1/src/asn1.app.src
+++ b/lib/asn1/src/asn1.app.src
@@ -11,5 +11,5 @@
 		]},
   {env, []},
   {applications, [kernel, stdlib]},
-  {runtime_dependencies, ["stdlib-2.0","kernel-3.0","erts-6.0"]}
+  {runtime_dependencies, ["stdlib-2.0","kernel-3.0","erts-7.0"]}
   ]}.
diff --git a/lib/asn1/src/asn1_db.erl b/lib/asn1/src/asn1_db.erl
index 48d9dd16d7..5577969727 100644
--- a/lib/asn1/src/asn1_db.erl
+++ b/lib/asn1/src/asn1_db.erl
@@ -19,7 +19,8 @@
 %%
 -module(asn1_db).
 
--export([dbstart/1,dbnew/2,dbload/1,dbload/3,dbsave/2,dbput/3,dbget/2]).
+-export([dbstart/1,dbnew/2,dbload/1,dbload/3,dbsave/2,dbput/2,
+	 dbput/3,dbget/2]).
 -export([dbstop/0]).
 
 -record(state, {parent, monitor, includes, table}).
@@ -44,6 +45,7 @@ dbload(Module) ->
 dbnew(Module, Erule)       -> req({new, Module, Erule}).
 dbsave(OutFile, Module)    -> cast({save, OutFile, Module}).
 dbput(Module, K, V)        -> cast({set, Module, K, V}).
+dbput(Module, Kvs)         -> cast({set, Module, Kvs}).
 dbget(Module, K)           -> req({get, Module, K}).
 dbstop()                   -> Resp = req(stop), erase(?MODULE), Resp.
 
@@ -82,6 +84,10 @@ loop(#state{parent = Parent, monitor = MRef, table = Table,
             [{_, Modtab}] = ets:lookup(Table, Mod),
             ets:insert(Modtab, {K2, V}),
             loop(State);
+        {set, Mod, Kvs} ->
+            [{_, Modtab}] = ets:lookup(Table, Mod),
+            ets:insert(Modtab, Kvs),
+            loop(State);
         {From, {get, Mod, K2}} ->
 	    %% XXX If there is no information for Mod, get_table/3
 	    %% will attempt to load information from an .asn1db
diff --git a/lib/asn1/src/asn1_records.hrl b/lib/asn1/src/asn1_records.hrl
index 6c1cf1b12a..84435b2d21 100644
--- a/lib/asn1/src/asn1_records.hrl
+++ b/lib/asn1/src/asn1_records.hrl
@@ -81,9 +81,19 @@
 	 module :: atom(),
 	 val :: atom()}).
 
--record(state,{module,mname,type,tname,value,vname,erule,parameters=[],
-	       inputmodules,abscomppath=[],recordtopname=[],options,
-	       sourcedir}).
+-record(state,
+	{module,
+	 mname,
+	 tname,
+	 erule,
+	 parameters=[],
+	 inputmodules=[],
+	 abscomppath=[],
+	 recordtopname=[],
+	 options,
+	 sourcedir,
+	 error_context				%Top-level thingie (contains line numbers)
+	}).
 
 %% state record used by back-end at partial decode
 %% active is set to 'yes' when a partial decode function is generated.
diff --git a/lib/asn1/src/asn1ct.erl b/lib/asn1/src/asn1ct.erl
index df341e5aab..a26d63c97d 100644
--- a/lib/asn1/src/asn1ct.erl
+++ b/lib/asn1/src/asn1ct.erl
@@ -34,7 +34,8 @@
 %% Application internal exports
 -export([compile_asn/3,compile_asn1/3,compile_py/3,compile/3,
 	 vsn/0,
-	 get_name_of_def/1,get_pos_of_def/1]).
+	 get_name_of_def/1,get_pos_of_def/1,
+	 unset_pos_mod/1]).
 -export([read_config_data/1,get_gen_state_field/1,
 	 partial_inc_dec_toptype/1,update_gen_state/2,
 	 get_tobe_refed_func/1,reset_gen_state/0,is_function_generated/1,
@@ -166,46 +167,26 @@ set_scan_parse_pass(#st{files=Files}=St) ->
 	    {error,St#st{error=Error}}
     end.
 
-set_scan_parse_pass_1([F|Fs], St) ->
+set_scan_parse_pass_1([F|Fs], #st{file=File}=St) ->
     case asn1ct_tok:file(F) of
 	{error,Error} ->
 	    throw(Error);
 	Tokens when is_list(Tokens) ->
-	    case catch asn1ct_parser2:parse(Tokens) of
+	    case asn1ct_parser2:parse(File, Tokens) of
 		{ok,M} ->
 		    [M|set_scan_parse_pass_1(Fs, St)];
-		{error,ErrorTerm} ->
-		    throw(handle_parse_error(ErrorTerm, St))
+		{error,Errors} ->
+		    throw(Errors)
 	    end
     end;
 set_scan_parse_pass_1([], _) -> [].
 
-parse_pass(#st{code=Tokens}=St) ->
-    case catch asn1ct_parser2:parse(Tokens) of
+parse_pass(#st{file=File,code=Tokens}=St) ->
+    case asn1ct_parser2:parse(File, Tokens) of
 	{ok,M} ->
 	    {ok,St#st{code=M}};
-	{error,ErrorTerm} ->
-	    {error,St#st{error=handle_parse_error(ErrorTerm, St)}}
-    end.
-
-handle_parse_error(ErrorTerm, #st{file=File,opts=Opts}) ->
-    case ErrorTerm of
-	{{Line,_Mod,Message},_TokTup} ->
-	    if
-		is_integer(Line) ->
-		    BaseName = filename:basename(File),
-		    error("syntax error at line ~p in module ~s:~n",
-			  [Line,BaseName], Opts);
-		true ->
-		    error("syntax error in module ~p:~n",
-			  [File], Opts)
-	    end,
-	    print_error_message(Message),
-	    Message;
-	{Line,_Mod,[Message,Token]} ->
-	    error("syntax error: ~p ~p at line ~p~n",
-		  [Message,Token,Line], Opts),
-	    {Line,[Message,Token]}
+	{error,Errors} ->
+	    {error,St#st{error=Errors}}
     end.
 
 merge_pass(#st{file=Base,code=Code}=St) ->
@@ -559,7 +540,10 @@ unset_pos_mod(Def) when is_record(Def,pvaluesetdef) ->
 unset_pos_mod(Def) when is_record(Def,pobjectdef) ->
     Def#pobjectdef{pos=undefined};
 unset_pos_mod(Def) when is_record(Def,pobjectsetdef) ->
-    Def#pobjectsetdef{pos=undefined}.
+    Def#pobjectsetdef{pos=undefined};
+unset_pos_mod(#'ComponentType'{} = Def) ->
+    Def#'ComponentType'{pos=undefined};
+unset_pos_mod(Def) -> Def.
 
 get_pos_of_def(#typedef{pos=Pos}) ->
     Pos;
@@ -1406,33 +1390,6 @@ prepare_bytes(Bytes) -> list_to_binary(Bytes).
 vsn() ->
     ?vsn.
 
-
-
-print_error_message([got,H|T]) when is_list(H) ->
-    io:format(" got:"),
-    print_listing(H,"and"),
-    print_error_message(T);
-print_error_message([expected,H|T]) when is_list(H) ->
-    io:format(" expected one of:"),
-    print_listing(H,"or"),
-    print_error_message(T);
-print_error_message([H|T])  ->
-    io:format(" ~p",[H]),
-    print_error_message(T);
-print_error_message([]) ->
-    io:format("~n").
-
-print_listing([H1,H2|[]],AndOr) ->
-    io:format(" ~p ~s ~p",[H1,AndOr,H2]);
-print_listing([H1,H2|T],AndOr) ->
-    io:format(" ~p,",[H1]),
-    print_listing([H2|T],AndOr);
-print_listing([H],_AndOr) ->
-    io:format(" ~p",[H]);
-print_listing([],_) ->
-    ok.
-
-
 specialized_decode_prepare(Erule,M,TsAndVs,Options) ->
     case lists:member(asn1config,Options) of
 	true ->
diff --git a/lib/asn1/src/asn1ct_check.erl b/lib/asn1/src/asn1ct_check.erl
index 240f1cbb16..99392d6eaa 100644
--- a/lib/asn1/src/asn1ct_check.erl
+++ b/lib/asn1/src/asn1ct_check.erl
@@ -23,8 +23,6 @@
 %% Main Module for ASN.1 compile time functions
 
 %-compile(export_all).
-%% Avoid warning for local function error/1 clashing with autoimported BIF.
--compile({no_auto_import,[error/1]}).
 -export([check/2,storeindb/2,format_error/1]).
 %-define(debug,1).
 -include("asn1_records.hrl").
@@ -60,17 +58,9 @@
 -define(N_BMPString, 30).
 
 -define(TAG_PRIMITIVE(Num),
-	case S#state.erule of
-	    ber ->
-		#tag{class='UNIVERSAL',number=Num,type='IMPLICIT',form=0};
-	    _ -> []
-	end).
+	#tag{class='UNIVERSAL',number=Num,type='IMPLICIT',form=0}).
 -define(TAG_CONSTRUCTED(Num),
-	case S#state.erule of
-	    ber ->
-		#tag{class='UNIVERSAL',number=Num,type='IMPLICIT',form=32};
-	    _ -> []
-	end).
+	#tag{class='UNIVERSAL',number=Num,type='IMPLICIT',form=32}).
 
 -record(newt,{type=unchanged,tag=unchanged,constraint=unchanged,inlined=no}). % used in check_type to update type and tag
  
@@ -249,26 +239,18 @@ check_exports(S,Module = #module{}) ->
 	{exports,all} ->
 	    [];
 	{exports,ExportList} when is_list(ExportList) ->
-	    IsNotDefined = 
+	    IsNotDefined =
 		fun(X) ->
-			case catch get_referenced_type(S,X) of
-			    {error,{asn1,_}} ->
-				true;
-			    _ -> false
+			try
+			    _ = get_referenced_type(S,X),
+			    false
+			catch {error,_} ->
+				true
 			end
 		end,
-	    case lists:filter(IsNotDefined,ExportList) of
-		[] ->
-		    [];
-		NoDefExp ->
-		    GetName =
-			fun(T = #'Externaltypereference'{type=N})-> 
-				%%{exported,undefined,entity,N} 
-				NewS=S#state{type=T,tname=N},
-				error({export,"exported undefined entity",NewS})
-			end,
-		    lists:map(GetName,NoDefExp)
-	    end
+	    [return_asn1_error(S, Ext, {undefined_export, Undef}) ||
+		Ext = #'Externaltypereference'{type=Undef} <- ExportList,
+		IsNotDefined(Ext)]
     end.
 
 check_imports(S, #module{imports={imports,Imports}}) ->
@@ -276,53 +258,18 @@ check_imports(S, #module{imports={imports,Imports}}) ->
 
 check_imports_1(_S, [], Acc) ->
     Acc;
-check_imports_1(S, [#'SymbolsFromModule'{symbols=Imports,module=ModuleRef}|SFMs], Acc0) ->
+check_imports_1(S, [#'SymbolsFromModule'{symbols=Imports,module=ModuleRef}|SFMs], Acc) ->
     Module = name_of_def(ModuleRef),
-    Refs0 = [{catch get_referenced_type(S, Ref),Ref} || Ref <- Imports],
-    Refs = [{M,R} || {{M,_},R} <- Refs0],
-    {Illegal,Other} = lists:splitwith(fun({error,_}) -> true;
-					 (_) -> false
-				      end, Refs),
-    ChainedRefs = [R || {M,R} <- Other, M =/= Module],
-    IllegalRefs = [R || {error,R} <- Illegal] ++
-	[R || {M,R} <- ChainedRefs,
-	      ok =/= chained_import(S, Module, M, name_of_def(R))],
-    Acc = [return_asn1_error(S, Ref, {undefined_import,name_of_def(Ref),Module}) ||
-	      Ref <- IllegalRefs] ++ Acc0,
-    check_imports_1(S, SFMs, Acc).
-
-chained_import(S,ImpMod,DefMod,Name) ->
-    %% Name is a referenced structure that is not defined in ImpMod,
-    %% but must be present in the Imports list of ImpMod. The chain of
-    %% imports of Name must end in DefMod.
-    GetImports =
-	fun(_M_) ->
-		case asn1_db:dbget(_M_,'MODULE') of
-		    #module{imports={imports,ImportList}} ->
-			ImportList;
-		    _ -> []
-		end
-	end,
-    FindNameInImports =
-	fun([],N,_) -> {no_mod,N};
-	   ([#'SymbolsFromModule'{symbols=Imports,module=ModuleRef}|SFMs],N,F) ->
-		case [name_of_def(X) || X <- Imports, name_of_def(X) =:= N] of
-		    [] -> F(SFMs,N,F);
-		    [N] -> {name_of_def(ModuleRef),N}
-		end
-	end,
-    case GetImports(ImpMod) of
-	[] ->
-	    error;
-	Imps ->
-	    case FindNameInImports(Imps,Name,FindNameInImports) of
-		{no_mod,_} ->
-		    error;
-		{DefMod,_} -> ok;
-		{OtherMod,_} ->
-		    chained_import(S,OtherMod,DefMod,Name)
-	    end
-    end.
+    Refs = [{try get_referenced_type(S, Ref)
+	     catch throw:Error -> Error end,
+	     Ref}
+	    || Ref <- Imports],
+    CreateError = fun(Ref) ->
+			  Error = {undefined_import,name_of_def(Ref),Module},
+			  return_asn1_error(S, Ref, Error)
+		  end,
+    Errors = [CreateError(Ref) || {{error, _}, Ref} <- Refs],
+    check_imports_1(S, SFMs, Errors ++ Acc).
 
 checkt(S0, Names) ->
     Check = fun do_checkt/3,
@@ -335,7 +282,7 @@ checkt(S0, Names) ->
     check_fold(S0, lists:reverse(CtxtSwitch), Check) ++ Types.
 
 do_checkt(S, Name, #typedef{typespec=TypeSpec}=Type0) ->
-    NewS = S#state{type=Type0,tname=Name},
+    NewS = S#state{tname=Name},
     try check_type(NewS, Type0, TypeSpec) of
 	#type{}=Ts ->
 	    case Type0#typedef.checked of
@@ -350,7 +297,7 @@ do_checkt(S, Name, #typedef{typespec=TypeSpec}=Type0) ->
 	    end
     catch
 	{error,Reason} ->
-	    error({type,Reason,NewS});
+	    Reason;
 	{asn1_class,_ClassDef} ->
 	    {asn1_class,Name};
 	pobjectsetdef ->
@@ -384,33 +331,32 @@ do_checkv(S, Name, Value)
        is_record(Value, typedef); %Value set may be parsed as object set.
        is_record(Value, pvaluedef);
        is_record(Value, pvaluesetdef) ->
-    NewS = S#state{value=Value},
-    try check_value(NewS, Value) of
+    try check_value(S, Value) of
 	{valueset,VSet} ->
 	    Pos = asn1ct:get_pos_of_def(Value),
 	    CheckedVSDef = #typedef{checked=true,pos=Pos,
 				    name=Name,typespec=VSet},
-	    asn1_db:dbput(NewS#state.mname, Name, CheckedVSDef),
+	    asn1_db:dbput(S#state.mname, Name, CheckedVSDef),
 	    {valueset,Name};
 	V ->
 	    %% update the valuedef
-	    asn1_db:dbput(NewS#state.mname, Name, V),
+	    asn1_db:dbput(S#state.mname, Name, V),
 	    ok
     catch
 	{error,Reason} ->
-	    error({value,Reason,NewS});
+	    Reason;
 	{pobjectsetdef} ->
 	    {pobjectsetdef,Name};
 	{objectsetdef} ->
 	    {objectsetdef,Name};
-	{objectdef} ->
+	{asn1_class, _} ->
 	    %% this is an object, save as typedef
 	    #valuedef{checked=C,pos=Pos,name=N,type=Type,
 		      value=Def} = Value,
 	    ClassName = Type#type.def,
 	    NewSpec = #'Object'{classname=ClassName,def=Def},
 	    NewDef = #typedef{checked=C,pos=Pos,name=N,typespec=NewSpec},
-	    asn1_db:dbput(NewS#state.mname, Name, NewDef),
+	    asn1_db:dbput(S#state.mname, Name, NewDef),
 	    {objectdef,Name}
     end.
 
@@ -419,7 +365,7 @@ checkp(S, Names) ->
     check_fold(S, Names, fun do_checkp/3).
 
 do_checkp(S0, Name, #ptypedef{typespec=TypeSpec}=Type0) ->
-    S = S0#state{type=Type0,tname=Name},
+    S = S0#state{tname=Name},
     try check_ptype(S, Type0, TypeSpec) of
 	#type{}=Ts ->
 	    Type = Type0#ptypedef{checked=true,typespec=Ts},
@@ -427,7 +373,7 @@ do_checkp(S0, Name, #ptypedef{typespec=TypeSpec}=Type0) ->
 	    ok
     catch
 	{error,Reason} ->
-	    error({type,Reason,S});
+	    Reason;
 	{asn1_class,_ClassDef} ->
 	    {asn1_class,Name};
 	{asn1_param_class,_} ->
@@ -438,100 +384,81 @@ do_checkp(S0, Name, #ptypedef{typespec=TypeSpec}=Type0) ->
 checkc(S, Names) ->
     check_fold(S, Names, fun do_checkc/3).
 
-do_checkc(S0, Name, Class0) ->
-    {Class1,ClassSpec} =
-	case Class0 of
-	    #classdef{} ->
-		{Class0,Class0};
-	    #typedef{} ->
-		{#classdef{name=Name},Class0#typedef.typespec}
-	end,
-    S = S0#state{type=Class0,tname=Name},
-    try check_class(S, ClassSpec) of
-	C ->
-	    Class = Class1#classdef{checked=true,typespec=C},
-	    asn1_db:dbput(S#state.mname, Name, Class),
-	    ok
-	 catch
-	     {error,Reason} ->
-		 error({class,Reason,S})
-	 end.
+do_checkc(S, Name, Class) ->
+    try
+	case is_classname(Name) of
+	    false ->
+		asn1_error(S, {illegal_class_name,Name});
+	    true ->
+		do_checkc_1(S, Name, Class)
+	end
+    catch {error,Reason} -> Reason
+    end.
+
+do_checkc_1(S, Name, #classdef{}=Class) ->
+    C = check_class(S, Class),
+    store_class(S, true, Class#classdef{typespec=C}, Name),
+    ok;
+do_checkc_1(S, Name, #typedef{typespec=#type{def=Def}=TS}) ->
+    C = check_class(S, TS),
+    {Mod,Pos} = case Def of
+		    #'Externaltypereference'{module=M, pos=P} ->
+			{M,P};
+		    {pt, #'Externaltypereference'{module=M, pos=P}, _} ->
+			{M,P}
+		end,
+    Class = #classdef{name=Name, typespec=C, pos=Pos, module=Mod},
+    store_class(S, true, Class, Name),
+    ok.
+
+%% is_classname(Atom) -> true|false.
+is_classname(Name) when is_atom(Name) ->
+    lists:all(fun($-) -> true;
+		 (D) when $0 =< D, D =< $9 -> true;
+		 (UC) when $A =< UC, UC =< $Z -> true;
+		 (_) -> false
+	      end, atom_to_list(Name)).
     
-checko(S,[Name|Os],Acc,ExclO,ExclOS) ->
-    ?dbg("Checking object ~p~n",[Name]),
-    Result = 
-	case asn1_db:dbget(S#state.mname,Name) of
-	    undefined ->
-		error({type,{internal_error,'???'},S});
-	    Object when is_record(Object,typedef) ->
-		NewS = S#state{type=Object,tname=Name},
-		case catch(check_object(NewS,Object,Object#typedef.typespec)) of
-		    {error,Reason} ->
-			error({type,Reason,NewS});
-		    {'EXIT',Reason} ->
-			error({type,{internal_error,Reason},NewS});
-		    {asn1,Reason} ->
-			error({type,Reason,NewS});
-		    O ->
-			NewObj = Object#typedef{checked=true,typespec=O},
-			asn1_db:dbput(NewS#state.mname,Name,NewObj),
-			if
-			    is_record(O,'Object') ->
-				case O#'Object'.gen of
-				    true ->
-					{ok,ExclO,ExclOS};
-				    false ->
-					{ok,[Name|ExclO],ExclOS}
-				end;
-			    is_record(O,'ObjectSet') ->
-				case O#'ObjectSet'.gen of
-				    true ->
-					{ok,ExclO,ExclOS};
-				    false ->
-					{ok,ExclO,[Name|ExclOS]}
-				end
-			end
-		end;
-	    PObject when is_record(PObject,pobjectdef) ->
-		NewS = S#state{type=PObject,tname=Name},
-		case (catch check_pobject(NewS,PObject)) of
-		    {error,Reason} ->
-			error({type,Reason,NewS});
-		    {'EXIT',Reason} ->
-			error({type,{internal_error,Reason},NewS});
-		    {asn1,Reason} ->
-			error({type,Reason,NewS});
-		    PO ->
-			NewPObj = PObject#pobjectdef{def=PO},
-			asn1_db:dbput(NewS#state.mname,Name,NewPObj),
-			{ok,[Name|ExclO],ExclOS}
-		end;
-	    PObjSet when is_record(PObjSet,pvaluesetdef) ->
-		%% this is a parameterized object set. Might be a parameterized
-		%% value set, couldn't it?
-		NewS = S#state{type=PObjSet,tname=Name},
-		case (catch check_pobjectset(NewS,PObjSet)) of
-		    {error,Reason} ->
-			error({type,Reason,NewS});
-		    {'EXIT',Reason} ->
-			error({type,{internal_error,Reason},NewS});
-		    {asn1,Reason} ->
-			error({type,Reason,NewS});
-		    POS ->
-			%%NewPObjSet = PObjSet#pvaluesetdef{valueset=POS},
-			asn1_db:dbput(NewS#state.mname,Name,POS),
-			{ok,ExclO,[Name|ExclOS]}
-		end
-	end,
-    case Result of
-	{ok,NewExclO,NewExclOS} ->
-	    checko(S,Os,Acc,NewExclO,NewExclOS);
-	_ ->
-	    checko(S,Os,[Result|Acc],ExclO,ExclOS)
+checko(S0,[Name|Os],Acc,ExclO,ExclOS) ->
+    Item = asn1_db:dbget(S0#state.mname, Name),
+    S = S0#state{error_context=Item},
+    try checko_1(S, Item, Name, ExclO, ExclOS) of
+	{NewExclO,NewExclOS} ->
+	    checko(S, Os, Acc, NewExclO, NewExclOS)
+    catch
+	throw:{error, Error} ->
+	    checko(S, Os, [Error|Acc], ExclO, ExclOS)
     end;
 checko(_S,[],Acc,ExclO,ExclOS) ->
     {lists:reverse(Acc),lists:reverse(ExclO),lists:reverse(ExclOS)}.
 
+checko_1(S, #typedef{typespec=TS}=Object, Name, ExclO, ExclOS) ->
+    NewS = S#state{tname=Name},
+    O = check_object(NewS, Object, TS),
+    NewObj = Object#typedef{checked=true,typespec=O},
+    asn1_db:dbput(NewS#state.mname, Name, NewObj),
+    case O of
+	#'Object'{gen=true} ->
+	    {ExclO,ExclOS};
+	#'Object'{gen=false} ->
+	    {[Name|ExclO],ExclOS};
+	#'ObjectSet'{gen=true} ->
+	    {ExclO,ExclOS};
+	#'ObjectSet'{gen=false} ->
+	    {ExclO,[Name|ExclOS]}
+    end;
+checko_1(S, #pobjectdef{}=PObject, Name, ExclO, ExclOS) ->
+    NewS = S#state{tname=Name},
+    PO = check_pobject(NewS, PObject),
+    NewPObj = PObject#pobjectdef{def=PO},
+    asn1_db:dbput(NewS#state.mname, Name, NewPObj),
+    {[Name|ExclO],ExclOS};
+checko_1(S, #pvaluesetdef{}=PObjSet, Name, ExclO, ExclOS) ->
+    NewS = S#state{tname=Name},
+    POS = check_pobjectset(NewS, PObjSet),
+    asn1_db:dbput(NewS#state.mname, Name, POS),
+    {ExclO,[Name|ExclOS]}.
+
 check_class(S,CDef=#classdef{checked=Ch,name=Name,typespec=TS}) ->
     case Ch of
 	true -> TS;
@@ -551,22 +478,16 @@ check_class(S = #state{mname=M,tname=T},ClassSpec)
 	Tref = #'Externaltypereference'{type=TName} ->
 	    {MName,RefType} = get_referenced_type(S,Tref),
 	    #classdef{} = CD = get_class_def(S, RefType),
-	    NewState = update_state(S#state{type=RefType,
-					    tname=TName}, MName),
+	    NewState = update_state(S#state{tname=TName}, MName),
 	    check_class(NewState, CD);
 	{pt,ClassRef,Params} ->
 	    %% parameterized class
 	    {_,PClassDef} = get_referenced_type(S,ClassRef),
-	    NewParaList = 
-		[match_parameters(S,TmpParam,S#state.parameters)|| 
-		    TmpParam <- Params],
+	    NewParaList = match_parameters(S, Params),
 	    instantiate_pclass(S,PClassDef,NewParaList)
     end;
-check_class(S,C) when is_record(C,objectclass) ->
-    NewFieldSpec = check_class_fields(S,C#objectclass.fields),
-    C#objectclass{fields=NewFieldSpec};
-check_class(_S,{poc,_ObjSet,_Params}) ->
-    'fix this later';
+check_class(S, #objectclass{}=C) ->
+    check_objectclass(S, C);
 check_class(S,ClassName) ->
     {RefMod,Def} = get_referenced_type(S,ClassName),
     case Def of
@@ -579,8 +500,7 @@ check_class(S,ClassName) ->
 		false ->
 		    Name=ClassName#'Externaltypereference'.type,
 		    store_class(S,idle,ClassDef,Name),
-%		    NewS = S#state{mname=RefMod,type=Def,tname=Name},
-		    NewS = update_state(S#state{type=Def,tname=Name},RefMod),
+		    NewS = update_state(S#state{tname=Name}, RefMod),
 		    CheckedTS = check_class(NewS,ClassDef#classdef.typespec),
 		    store_class(S,true,ClassDef#classdef{typespec=CheckedTS},Name),
 		    CheckedTS
@@ -594,11 +514,20 @@ check_class(S,ClassName) ->
 	    end
     end.
 
+check_objectclass(S, #objectclass{fields=Fs0,syntax=Syntax0}=C) ->
+    Fs = check_class_fields(S, Fs0),
+    case Syntax0 of
+	{'WITH SYNTAX',Syntax1} ->
+	    Syntax = preprocess_syntax(S, Syntax1, Fs),
+	    C#objectclass{fields=Fs,syntax={preprocessed_syntax,Syntax}};
+	_ ->
+	    C#objectclass{fields=Fs}
+    end.
+
 instantiate_pclass(S=#state{parameters=_OldArgs},PClassDef,Params) ->
     #ptypedef{args=Args,typespec=Type} = PClassDef,
     MatchedArgs = match_args(S,Args, Params, []),
-%    NewS = S#state{type=Type,parameters=MatchedArgs++OldArgs,abscomppath=[]},
-    NewS = S#state{type=Type,parameters=MatchedArgs,abscomppath=[]},
+    NewS = S#state{parameters=MatchedArgs,abscomppath=[]},
     check_class(NewS,#classdef{name=S#state.tname,typespec=Type}).
 
 store_class(S,Mode,ClassDef,ClassName) ->
@@ -613,6 +542,12 @@ check_class_fields(S,[F|Fields],Acc) ->
 	case element(1,F) of
 	    fixedtypevaluefield ->
 		{_,Name,Type,Unique,OSpec} = F,
+		case {Unique,OSpec} of
+		    {'UNIQUE',{'DEFAULT',_}} ->
+			asn1_error(S, {unique_and_default,Name});
+		    {_,_} ->
+			ok
+		end,
 		RefType = check_type(S,#typedef{typespec=Type},Type),
 		{fixedtypevaluefield,Name,RefType,Unique,OSpec};
 	    object_or_fixedtypevalue_field ->
@@ -621,7 +556,7 @@ check_class_fields(S,[F|Fields],Acc) ->
 		Cat = 
 		    case asn1ct_gen:type(asn1ct_gen:get_inner(Type2#type.def)) of
 			Def when is_record(Def,'Externaltypereference') ->
-			    {_,D} = get_referenced_type(S,Def),
+			    {_,D} = get_referenced_type(S, Def, true),
 			    D;
 			{undefined,user} -> 
 			    %% neither of {primitive,bif} or {constructed,bif}
@@ -644,18 +579,14 @@ check_class_fields(S,[F|Fields],Acc) ->
 	    objectset_or_fixedtypevalueset_field ->
 		{_,Name,Type,OSpec} = F,
 		RefType =
-		    case (catch check_type(S,#typedef{typespec=Type},Type)) of
-			{asn1_class,_ClassDef} ->
+		    try check_type(S,#typedef{typespec=Type},Type) of
+			#type{} = CheckedType ->
+			    CheckedType
+		    catch {asn1_class,_ClassDef} ->
 			    case if_current_checked_type(S,Type) of
-				true ->
-				    Type#type.def;
-				_ ->
-				    check_class(S,Type)
-			    end;
-			CheckedType when is_record(CheckedType,type) ->
-			    CheckedType;
-			_ ->
-			    error({class,"internal error, check_class_fields",S})
+				true -> Type#type.def;
+				_ ->    check_class(S,Type)
+			    end
 		    end,
 		if
 		    is_record(RefType,'Externaltypereference') ->
@@ -733,38 +664,34 @@ check_pobjectset(S,PObjSet) ->
 	    PObjSet
     end.
 
+-record(osi,					%Object set information.
+	{st,
+	 classref,
+	 uniq,
+	 ext
+	}).
+
 check_object(_S,ObjDef,ObjSpec) when (ObjDef#typedef.checked == true) ->
     ObjSpec;
 check_object(S,_ObjDef,#'Object'{classname=ClassRef,def=ObjectDef}) ->
     ?dbg("check_object ~p~n",[ObjectDef]),
-%%    io:format("check_object,object: ~p~n",[ObjectDef]),
-%    {MName,_ClassDef} = get_referenced_type(S,ClassRef),
-    NewClassRef = check_externaltypereference(S,ClassRef),
-    ClassDef =
-	case get_referenced_type(S,ClassRef) of
-	    {MName,ClDef=#classdef{checked=false}} ->
-		NewState = update_state(S#state{type=ClDef,
-				   tname=ClassRef#'Externaltypereference'.type},MName),
-		ObjClass= 
-		    check_class(NewState,ClDef),
-		#classdef{checked=true,
-			  typespec=ObjClass};
-	    {_,_ClDef} when is_record(_ClDef,classdef) ->		
-		_ClDef;
-	    {MName,_TDef=#typedef{checked=false,pos=Pos,
-				   name=_TName,typespec=TS}} ->
-		ClDef = #classdef{pos=Pos,name=_TName,typespec=TS},
-		NewState = update_state(S#state{type=_TDef,
-			tname=ClassRef#'Externaltypereference'.type},MName),	   
-		ObjClass =
-		    check_class(NewState,ClDef),
-		ClDef#classdef{checked=true,typespec=ObjClass};
-	    {_,_ClDef} ->
-		_ClDef
+    _ = check_externaltypereference(S,ClassRef),
+    {ClassDef, NewClassRef} =
+	case get_referenced_type(S, ClassRef, true) of
+	    {MName,#classdef{checked=false, name=CLName}=ClDef} ->
+		Type = ClassRef#'Externaltypereference'.type,
+		NewState = update_state(S#state{tname=Type}, MName),
+		ObjClass = check_class(NewState, ClDef),
+		{ClDef#classdef{checked=true, typespec=ObjClass},
+		 #'Externaltypereference'{module=MName, type=CLName}};
+	    {MName,#classdef{name=CLName}=ClDef} ->
+		{ClDef, #'Externaltypereference'{module=MName, type=CLName}};
+	    _ ->
+		asn1_error(S, illegal_object)
 	end,
     NewObj =
 	case ObjectDef of
-	    Def when is_tuple(Def), (element(1,Def)==object) ->
+	    {object,_,_}=Def ->
 		NewSettingList = check_objectdefn(S,Def,ClassDef),
 		#'Object'{def=NewSettingList};
 	    {po,{object,DefObj},ArgsList} ->
@@ -778,425 +705,287 @@ check_object(S,_ObjDef,#'Object'{classname=ClassRef,def=ObjectDef}) ->
 		instantiate_po(S,ClassDef,Object,ArgList);
 	    #'Externalvaluereference'{} ->
 		{_,Object} = get_referenced_type(S,ObjectDef),
-		check_object(S,Object,Object#typedef.typespec);
+		check_object(S, Object, object_to_check(S, Object));
 	    [] -> 
-		%% An object with no fields. All class fields must be
-		%% optional or default.  Check that all fields in
-		%% class are 'OPTIONAL' or 'DEFAULT'
-		class_fields_optional_check(S,ClassDef),
-		#'Object'{def={object,defaultsyntax,[]}};
-	    _  ->
-		exit({error,{no_object,ObjectDef},S})
+		%% An object with no fields (parsed as a value).
+		Def = {object,defaultsyntax,[]},
+		NewSettingList = check_objectdefn(S, Def, ClassDef),
+		#'Object'{def=NewSettingList};
+	    _ ->
+		asn1_error(S, illegal_object)
 	end,
-    Gen = gen_incl(S,NewObj#'Object'.def,
-		   (ClassDef#classdef.typespec)#objectclass.fields),
+    Fields = (ClassDef#classdef.typespec)#objectclass.fields,
+    Gen = gen_incl(S,NewObj#'Object'.def, Fields),
     NewObj#'Object'{classname=NewClassRef,gen=Gen};
-
-
-check_object(S,
-	     _ObjSetDef,
-	     ObjSet=#'ObjectSet'{class=ClassRef}) ->
-%%    io:format("check_object,SET: ~p~n",[ObjSet#'ObjectSet'.set]),
-    ?dbg("check_object set: ~p~n",[ObjSet#'ObjectSet'.set]),
-    {_,ClassDef} = get_referenced_type(S,ClassRef),
-    NewClassRef = check_externaltypereference(S,ClassRef),
-    {UniqueFieldName,UniqueInfo} = 
-	case (catch get_unique_fieldname(S,ClassDef)) of
-	    {error,'__undefined_',_} -> 
-		{{unique,undefined},{unique,undefined}};
-	    {asn1,Msg,_} -> error({class,Msg,S});
-	    {'EXIT',Msg} -> error({class,{internal_error,Msg},S});
+check_object(S, _, #'ObjectSet'{class=ClassRef0,set=Set0}=ObjSet0) ->
+    {_,ClassDef} = get_referenced_type(S, ClassRef0),
+    ClassRef = check_externaltypereference(S, ClassRef0),
+    {UniqueFieldName,UniqueInfo} =
+	case get_unique_fieldname(S, ClassDef) of
+	    no_unique -> {{unique,undefined},{unique,undefined}};
 	    Other -> {element(1,Other),Other}
 	end,
-    NewObjSet=
-	case prepare_objset(ObjSet#'ObjectSet'.set) of
-	    {set,SET,EXT} ->
-		CheckedSet = check_object_list(S,NewClassRef,SET),
-		NewSet = get_unique_valuelist(S,CheckedSet,UniqueInfo),
-		ObjSet#'ObjectSet'{uniquefname=UniqueFieldName,
-				   set=extensionmark(NewSet,EXT)};
-
-	    {'SingleValue',ERef = #'Externalvaluereference'{}} ->
-		{RefedMod,ObjDef} = get_referenced_type(S,ERef),
-		#'Object'{def=CheckedObj} = 
-		    check_object(S,ObjDef,ObjDef#typedef.typespec),
-
-		NewSet = get_unique_valuelist(S,[{{RefedMod,get_datastr_name(ObjDef)},
-						  CheckedObj}],
-					      UniqueInfo),
-		ObjSet#'ObjectSet'{uniquefname=UniqueFieldName,
-				   set=NewSet};
-	    ['EXTENSIONMARK'] ->
-		ObjSet#'ObjectSet'{uniquefname=UniqueFieldName,
-				   set=['EXTENSIONMARK']};
-
-	    OSref when is_record(OSref,'Externaltypereference') ->
-		{_,OS=#typedef{typespec=OSdef}} = get_referenced_type(S,OSref),
-		check_object(S,OS,OSdef);
-
-	    {Type,{'EXCEPT',Exclusion}} when is_record(Type,type) ->
-		{_,TDef} = get_referenced_type(S,Type#type.def),
-		OS = TDef#typedef.typespec,
-		NewSet = reduce_objectset(OS#'ObjectSet'.set,Exclusion),
-		NewOS = OS#'ObjectSet'{set=NewSet},
-		check_object(S,TDef#typedef{typespec=NewOS},
-			     NewOS);
-	    #type{def={pt,DefinedObjSet,ParamList}} ->
-		{_,PObjSetDef} = get_referenced_type(S,DefinedObjSet),
-		NewParamList = 
-		    [match_parameters(S,TmpParam,S#state.parameters)|| 
-			TmpParam <- ParamList],
-		instantiate_pos(S,ClassRef,PObjSetDef,NewParamList);
-
-	    %% actually this is an ObjectSetFromObjects construct, it
-	    %% is when the object set is retrieved from an object
-	    %% field.
-	    #type{def=#'ObjectClassFieldType'{classname=ObjName,
-					      fieldname=FieldName}} ->
-		{RefedObjMod,TDef} = get_referenced_type(S,ObjName),
-		OS=TDef#typedef.typespec,
-		%% should get the right object set here. Get the field
-		%% FieldName out of the object set OS of class
-		%% OS#'ObjectSet'.class
-		OS2=check_object(S,TDef,OS),
-		NewSet=object_set_from_objects(S,RefedObjMod,FieldName,OS2),
-		ObjSet#'ObjectSet'{uniquefname=UniqueFieldName,
-				   set=NewSet};
-	    {'ObjectSetFromObjects',{_,_,ObjName},FieldName} ->
-		{RefedObjMod,TDef} = get_referenced_type(S,ObjName),
-		OS=TDef#typedef.typespec,
-		%% should get the right object set here. Get the field
-		%% FieldName out of the object set OS of class
-		%% OS#'ObjectSet'.class
-		OS2=check_object(S,TDef,OS),
-		NewSet=object_set_from_objects(S,RefedObjMod,FieldName,OS2),
-		ObjSet#'ObjectSet'{uniquefname=UniqueFieldName,
-				   set=NewSet};
-	     {'ObjectSetFromObjects',{_,ObjName},FieldName} ->
-		%% This is a ObjectSetFromObjects, i.e.
-		%% ObjectSetFromObjects ::= ReferencedObjects "." FieldName
-		%% with a defined object as ReferencedObjects. And
-		%% the FieldName of the Class (object) contains an object set.
-		{RefedObjMod,TDef} = get_referenced_type(S,ObjName),
-		O1 = TDef#typedef.typespec,
-		O2 = check_object(S,TDef,O1),
-		NewSet = object_set_from_objects(S,RefedObjMod,FieldName,O2),
-		OS2=ObjSet#'ObjectSet'{uniquefname=UniqueFieldName,
-				   set=NewSet},
-		%%io:format("ObjectSet: ~p~n",[OS2]),
-		OS2;
-	    {pos,{objectset,_,DefinedObjSet},Params} ->
-		{_,PObjSetDef} = get_referenced_type(S,DefinedObjSet),
-		NewParamList = 
-		    [match_parameters(S,TmpParam,S#state.parameters)|| 
-			TmpParam <- Params],
-		instantiate_pos(S,ClassRef,PObjSetDef,NewParamList);
-	    Unknown ->
-		exit({error,{unknown_object_set,Unknown},S})
-	end,
-    NewSet2 = remove_duplicate_objects(NewObjSet#'ObjectSet'.set),
-    NewObjSet2 = NewObjSet#'ObjectSet'{set=NewSet2},
-    Gen = gen_incl_set(S,NewObjSet2#'ObjectSet'.set,
-		       ClassDef),
-    ?dbg("check_object done~n",[]),
-    NewObjSet2#'ObjectSet'{class=NewClassRef,gen=Gen}.
+    OSI0 = #osi{st=S,classref=ClassRef,uniq=UniqueInfo,ext=false},
+    {Set1,OSI1} = if
+		      is_list(Set0) ->
+			  check_object_set_list(Set0, OSI0);
+		      true ->
+			  check_object_set(Set0, OSI0)
+		  end,
+    Ext = case Set1 of
+	      [] ->
+		  %% FIXME: X420 does not compile unless we force
+		  %% empty sets to be extensible. There should be
+		  %% a better way.
+		  true;
+	      [_|_] ->
+		  OSI1#osi.ext
+	  end,
+    Set2 = remove_duplicate_objects(S, Set1),
+    Set = case Ext of
+	      false -> Set2;
+	      true -> Set2 ++ ['EXTENSIONMARK']
+	  end,
+    ObjSet = ObjSet0#'ObjectSet'{uniquefname=UniqueFieldName,set=Set},
+    Gen = gen_incl_set(S, Set, ClassDef),
+    ObjSet#'ObjectSet'{class=ClassRef,gen=Gen}.
+
+check_object_set({element_set,Root0,Ext0}, OSI0) ->
+    OSI = case Ext0 of
+	      none -> OSI0;
+	      _ -> OSI0#osi{ext=true}
+	  end,
+    case {Root0,Ext0} of
+	{empty,empty} -> {[],OSI};
+	{empty,Ext} -> check_object_set(Ext, OSI);
+	{Root,none} -> check_object_set(Root, OSI);
+	{Root,empty} -> check_object_set(Root, OSI);
+	{Root,Ext} -> check_object_set_list([Root,Ext], OSI)
+    end;
+check_object_set(#'Externaltypereference'{}=Ref, #osi{st=S}=OSI) ->
+    {_,#typedef{typespec=OSdef}=OS} = get_referenced_type(S, Ref),
+    ObjectSet = check_object(S, OS, OSdef),
+    check_object_set_objset(ObjectSet, OSI);
+check_object_set(#'Externalvaluereference'{}=Ref, #osi{st=S}=OSI) ->
+    {RefedMod,ObjName,#'Object'{def=Def}} = check_referenced_object(S, Ref),
+    ObjList = check_object_set_mk(RefedMod, ObjName, Def, OSI),
+    {ObjList,OSI};
+check_object_set({'EXCEPT',Incl0,Excl0}, OSI) ->
+    {Incl1,_} = check_object_set(Incl0, OSI),
+    {Excl1,_} = check_object_set(Excl0, OSI),
+    Exclude = sofs:set([N || {N,_} <- Excl1], [name]),
+    Incl2 = [{Name,Obj} || {Name,_,_}=Obj <- Incl1],
+    Incl3 = sofs:relation(Incl2, [{name,object}]),
+    Incl4 = sofs:drestriction(Incl3, Exclude),
+    Incl5 = sofs:to_external(Incl4),
+    Incl = [Obj || {_,Obj} <- Incl5],
+    {Incl,OSI};
+check_object_set({object,_,_}=Obj0, OSI) ->
+    #osi{st=S,classref=ClassRef} = OSI,
+    #'Object'{def=Def} =
+	check_object(S, #typedef{typespec=Obj0},
+		     #'Object'{classname=ClassRef,def=Obj0}),
+    ObjList = check_object_set_mk(Def, OSI),
+    {ObjList,OSI};
+check_object_set(#'ObjectClassFieldType'{classname=ObjName,
+					 fieldname=FieldNames},
+		 #osi{st=S}=OSI) ->
+    Set = check_ObjectSetFromObjects(S, ObjName, FieldNames),
+    check_object_set_objset_list(Set, OSI);
+check_object_set({'ObjectSetFromObjects',Obj,FieldNames}, #osi{st=S}=OSI) ->
+    ObjName = element(tuple_size(Obj), Obj),
+    Set = check_ObjectSetFromObjects(S, ObjName, FieldNames),
+    check_object_set_objset_list(Set, OSI);
+check_object_set({pt,DefinedObjSet,ParamList0}, OSI) ->
+    #osi{st=S,classref=ClassRef} = OSI,
+    {_,PObjSetDef} = get_referenced_type(S, DefinedObjSet),
+    ParamList = match_parameters(S, ParamList0),
+    ObjectSet = instantiate_pos(S, ClassRef, PObjSetDef, ParamList),
+    check_object_set_objset(ObjectSet, OSI);
+check_object_set({pos,{objectset,_,DefinedObjSet},Params0}, OSI) ->
+    #osi{st=S,classref=ClassRef} = OSI,
+    {_,PObjSetDef} = get_referenced_type(S, DefinedObjSet),
+    Params = match_parameters(S, Params0),
+    ObjectSet = instantiate_pos(S, ClassRef, PObjSetDef, Params),
+    check_object_set_objset(ObjectSet, OSI);
+check_object_set({pv,{simpledefinedvalue,DefinedObject},Params}=PV, OSI) ->
+    #osi{st=S,classref=ClassRef} = OSI,
+    Args = match_parameters(S, Params),
+    #'Object'{def=Def} =
+	check_object(S, PV,
+		     #'Object'{classname=ClassRef ,
+			       def={po,{object,DefinedObject},Args}}),
+    ObjList = check_object_set_mk(Def, OSI),
+    {ObjList,OSI};
+check_object_set({'SingleValue',Val}, OSI) ->
+    check_object_set(Val, OSI);
+check_object_set({'ValueFromObject',{object,Object},FieldNames}, OSI) ->
+    #osi{st=S} = OSI,
+    case extract_field(S, Object, FieldNames) of
+	#'Object'{def=Def} ->
+	    ObjList = check_object_set_mk(Def, OSI),
+	    {ObjList,OSI};
+	_ ->
+	    asn1_error(S, illegal_object)
+    end;
+check_object_set(#type{def=Def}, OSI) ->
+    check_object_set(Def, OSI);
+check_object_set({union,A0,B0}, OSI0) ->
+    {A,OSI1} = check_object_set(A0, OSI0),
+    {B,OSI} = check_object_set(B0, OSI1),
+    {A++B,OSI}.
+
+check_object_set_list([H|T], OSI0) ->
+    {Set0,OSI1} = check_object_set(H, OSI0),
+    {Set1,OSI2} = check_object_set_list(T, OSI1),
+    {Set0++Set1,OSI2};
+check_object_set_list([], OSI) ->
+    {[],OSI}.
+
+check_object_set_objset(#'ObjectSet'{set=Set}, OSI) ->
+    check_object_set_objset_list(Set, OSI).
+
+check_object_set_objset_list(Set, OSI) ->
+    check_object_set_objset_list_1(Set, OSI, []).
+
+check_object_set_objset_list_1(['EXTENSIONMARK'|T], OSI, Acc) ->
+    check_object_set_objset_list_1(T, OSI#osi{ext=true}, Acc);
+check_object_set_objset_list_1([H|T], OSI, Acc) ->
+    check_object_set_objset_list_1(T, OSI, [H|Acc]);
+check_object_set_objset_list_1([], OSI, Acc) ->
+    {Acc,OSI}.
+
+check_object_set_mk(Fields, OSI) ->
+    check_object_set_mk(no_mod, no_name, Fields, OSI).
+
+check_object_set_mk(M, N, Def, #osi{uniq={unique,undefined}}) ->
+    {_,_,Fields} = Def,
+    [{{M,N},no_unique_value,Fields}];
+check_object_set_mk(M, N, Def, #osi{uniq={UniqField,_}}) ->
+    {_,_,Fields} = Def,
+    case lists:keyfind(UniqField, 1, Fields) of
+	{UniqField,#valuedef{value=Val}} ->
+	    [{{M,N},Val,Fields}];
+	false ->
+	    case Fields of
+		[{_,#typedef{typespec=#'ObjectSet'{set=['EXTENSIONMARK']}}}] ->
+		    %% FIXME: If object is missing the unique field and
+		    %% only contains a reference to an empty object set,
+		    %% we will remove the entire object as a workaround
+		    %% to get X420 to compile. There should be a better
+		    %% way.
+		    [];
+		_ ->
+		    [{{M,N},no_unique_value,Fields}]
+	    end
+    end.
 
 %% remove_duplicate_objects/1 remove duplicates of objects.
 %% For instance may Set contain objects of same class from
 %% different object sets that in fact might be duplicates.
-remove_duplicate_objects(Set) when is_list(Set) ->
-    Pred = fun({A,B,_},{A,C,_}) when B =< C -> true;
-	      ({A,_,_},{B,_,_}) when A < B -> true;
-	      ('EXTENSIONMARK','EXTENSIONMARK') -> true;
-	      (T,A) when is_tuple(T),is_atom(A) -> true;% EXTENSIONMARK last in list
-	      (_,_) -> false 
-	   end,
-    lists:usort(Pred,Set).
+remove_duplicate_objects(S, Set0) when is_list(Set0) ->
+    Set1 = [{Id,Orig} || {_,Id,_}=Orig <- Set0],
+    Set2 = sofs:relation(Set1),
+    Set3 = sofs:relation_to_family(Set2),
+    Set = sofs:to_external(Set3),
+    remove_duplicate_objects_1(S, Set).
+
+remove_duplicate_objects_1(S, [{no_unique_value,Objs}|T]) ->
+    Objs ++ remove_duplicate_objects_1(S, T);
+remove_duplicate_objects_1(S, [{_,[_]=Objs}|T]) ->
+    Objs ++ remove_duplicate_objects_1(S, T);
+remove_duplicate_objects_1(S, [{Id,[_|_]=Objs}|T]) ->
+    MakeSortable = fun(What) -> sortable_type(S, What) end,
+    Tagged = order_tag_set(Objs, MakeSortable),
+    case lists:ukeysort(1, Tagged) of
+	[{_,Obj}] ->
+	    [Obj|remove_duplicate_objects_1(S, T)];
+	[_|_] ->
+	    asn1_error(S, {non_unique_object,Id})
+    end;
+remove_duplicate_objects_1(_, []) ->
+    [].
 
-%%
-extensionmark(L,true) ->
-    case lists:member('EXTENSIONMARK',L) of
-	true -> L;
-	_ -> L ++ ['EXTENSIONMARK']
+order_tag_set([{_, _, Fields}=Orig|Fs], Fun) ->
+    Pair = {[{FId, traverse(F, Fun)} || {FId, F} <- Fields], Orig},
+    [Pair|order_tag_set(Fs, Fun)];
+order_tag_set([], _) -> [].
+
+sortable_type(S, #'Externaltypereference'{}=ERef) ->
+    try get_referenced_type(S, ERef) of
+	 {_,#typedef{}=OI} ->
+	    OI#typedef{pos=undefined,name=undefined}
+    catch
+	_:_ ->
+	    ERef
     end;
-extensionmark(L,_) ->
-    L.
+sortable_type(_, #typedef{}=TD) ->
+    asn1ct:unset_pos_mod(TD#typedef{name=undefined});
+sortable_type(_, Type) ->
+    asn1ct:unset_pos_mod(Type).
+
+traverse(Structure0, Fun) ->
+    Structure = Fun(Structure0),
+    traverse_1(Structure, Fun).
+
+traverse_1(#typedef{typespec=TS0} = TD, Fun) ->
+    TS = traverse(TS0, Fun),
+    TD#typedef{typespec=TS};
+traverse_1(#valuedef{type=TS0} = VD, Fun) ->
+    TS = traverse(TS0, Fun),
+    VD#valuedef{type=TS};
+traverse_1(#type{def=TS0} = TD, Fun) ->
+    TS = traverse(TS0, Fun),
+    TD#type{def=TS};
+traverse_1(#'SEQUENCE'{components=Cs0} = Seq, Fun) ->
+    Cs = traverse_seq_set(Cs0, Fun),
+    Seq#'SEQUENCE'{components=Cs};
+traverse_1({'SEQUENCE OF',Type0}, Fun) ->
+    Type = traverse(Type0, Fun),
+    {'SEQUENCE OF',Type};
+traverse_1({'SET OF',Type0}, Fun) ->
+    Type = traverse(Type0, Fun),
+    {'SET OF',Type};
+traverse_1(#'SET'{components=Cs0} = Set, Fun) ->
+    Cs = traverse_seq_set(Cs0, Fun),
+    Set#'SET'{components=Cs};
+traverse_1({'CHOICE', Cs0}, Fun) ->
+    Cs = traverse_seq_set(Cs0, Fun),
+    {'CHOICE', Cs};
+traverse_1(Leaf, _) ->
+    Leaf.
+
+traverse_seq_set(List, Fun) when is_list(List) ->
+    traverse_seq_set_1(List, Fun);
+traverse_seq_set({Set, Ext}, Fun) ->
+    {traverse_seq_set_1(Set, Fun), traverse_seq_set_1(Ext, Fun)};
+traverse_seq_set({Set1, Set2, Set3}, Fun) ->
+    {traverse_seq_set_1(Set1, Fun),
+     traverse_seq_set_1(Set2, Fun),
+     traverse_seq_set_1(Set3, Fun)}.
+
+traverse_seq_set_1([#'ComponentType'{} = CT0|Cs], Fun) ->
+    CT = #'ComponentType'{typespec=TS0} = Fun(CT0),
+    TS = traverse(TS0, Fun),
+    [CT#'ComponentType'{typespec=TS}|traverse_seq_set_1(Cs, Fun)];
+traverse_seq_set_1([{'COMPONENTS OF', _} = CO0|Cs], Fun) ->
+    {'COMPONENTS OF', TS0} = Fun(CO0),
+    TS = traverse(TS0, Fun),
+    [{'COMPONENTS OF', TS}|traverse_seq_set_1(Cs, Fun)];
+traverse_seq_set_1([], _) ->
+    [].
 
-object_to_check(#typedef{typespec=ObjDef}) ->
+object_to_check(_, #typedef{typespec=ObjDef}) ->
     ObjDef;
-object_to_check(#valuedef{type=ClassName,value=ObjectRef}) ->
+object_to_check(S, #valuedef{type=Class,value=ObjectRef}) ->
     %% If the object definition is parsed as an object the ClassName
-    %% is parsed as a type
-    #'Object'{classname=ClassName#type.def,def=ObjectRef}.
-
-prepare_objset({'SingleValue',Set}) when is_list(Set) ->
-    {set,Set,false};
-prepare_objset(L=['EXTENSIONMARK']) ->
-    L;
-prepare_objset(Set) when is_list(Set) ->
-    {set,Set,false};
-prepare_objset({{'SingleValue',Set},Ext}) ->
-    {set,merge_sets(Set,Ext),true};
-%%prepare_objset({Set,Ext}) when is_list(Set),is_list(Ext) ->
-%%    {set,lists:append([Set,Ext]),true};
-prepare_objset({Set,Ext}) when is_list(Set) ->
-    {set,merge_sets(Set,Ext),true};
-prepare_objset({{object,definedsyntax,_ObjFields}=Set,Ext}) ->
-    {set,merge_sets(Set, Ext),true};
-prepare_objset(ObjDef={object,definedsyntax,_ObjFields}) ->
-    {set,[ObjDef],false};
-prepare_objset({ObjDef=#type{},Ext}) when is_list(Ext) ->
-    {set,[ObjDef|Ext],true};
-prepare_objset({#type{}=Type,#type{}=Ext}) ->
-    {set,[Type,Ext],true};
-prepare_objset(Ret) ->
-    Ret.
-
-class_fields_optional_check(S,#classdef{typespec=ClassSpec}) ->
-    Fields = ClassSpec#objectclass.fields,
-    class_fields_optional_check1(S,Fields).
-
-class_fields_optional_check1(_S,[]) ->
-    ok;
-class_fields_optional_check1(S,[{typefield,_,'OPTIONAL'}|Rest]) ->
-    class_fields_optional_check1(S,Rest);
-class_fields_optional_check1(S,[{fixedtypevaluefield,_,_,_,'OPTIONAL'}|Rest]) ->
-    class_fields_optional_check1(S,Rest);
-class_fields_optional_check1(S,[{fixedtypevaluesetfield,_,_,'OPTIONAL'}|Rest]) ->
-    class_fields_optional_check1(S,Rest);
-class_fields_optional_check1(S,[{objectfield,_,_,_,'OPTIONAL'}|Rest]) ->
-    class_fields_optional_check1(S,Rest);
-class_fields_optional_check1(S,[{objectsetfield,_,_,'OPTIONAL'}|Rest]) ->
-    class_fields_optional_check1(S,Rest).
-
-%% ObjectSetFromObjects functionality
-
-%% The fieldname is a list of field names.They may be objects or
-%% object sets. If ObjectSet is an object set the resulting object set
-%% is the union of object sets if the last field name is an object
-%% set.  If the last field is an object the resulting object set is
-%% the set of objects in ObjectSet.
-object_set_from_objects(S,RefedObjMod,FieldName,ObjectSet) ->
-    object_set_from_objects(S,RefedObjMod,FieldName,ObjectSet,[]).
-object_set_from_objects(S,RefedObjMod,FieldName,ObjectSet,InterSect)
-  when is_record(ObjectSet,'ObjectSet') ->
-    #'ObjectSet'{class=Cl,set=Set} = ObjectSet,
-    {_,ClassDef} = get_referenced_type(S,Cl),
-    object_set_from_objects(S,RefedObjMod,ClassDef,FieldName,Set,InterSect,[]);
-object_set_from_objects(S,RefedObjMod,FieldName,Object,InterSect) 
-  when is_record(Object,'Object') ->
-    #'Object'{classname=Cl,def=Def}=Object,
-    object_set_from_objects(S,RefedObjMod,Cl,FieldName,[Def],InterSect,[]).
-object_set_from_objects(S,RefedObjMod,ClassDef,FieldName,['EXTENSIONMARK'|Os],
-			InterSect,Acc) ->
-    object_set_from_objects(S,RefedObjMod,ClassDef,FieldName,Os,InterSect,%%Acc);
-			    ['EXTENSIONMARK'|Acc]);
-object_set_from_objects(S,RefedObjMod,ClassDef,FieldName,[O|Os],InterSect,Acc) ->
-    case object_set_from_objects2(S,mod_of_obj(RefedObjMod,element(1,O)),
-				  ClassDef,FieldName,element(3,O),InterSect) of
-	ObjS when is_list(ObjS) ->
-	    object_set_from_objects(S,RefedObjMod,ClassDef,FieldName,Os,InterSect,ObjS++Acc);
-	Obj ->
-	    object_set_from_objects(S,RefedObjMod,ClassDef,FieldName,Os,InterSect,[Obj|Acc])
-    end;
-object_set_from_objects(_S,_RefedObjMod,_ClassDef,_FieldName,[],InterSect,Acc) ->
-    %% For instance may Acc contain objects of same class from
-    %% different object sets that in fact might be duplicates.
-    remove_duplicate_objects(osfo_intersection(InterSect,Acc)).
-%%    Acc.
-object_set_from_objects2(S,RefedObjMod,ClassDef,[{valuefieldreference,OName}],
-			 Fields,_InterSect) ->
-    %% this is an object
-    case lists:keysearch(OName,1,Fields) of
-	{value,{_,TDef}} ->
-	    mk_object_set_from_object(S,RefedObjMod,TDef,ClassDef);
-	_ ->
-	    [] % it may be an absent optional field
-    end;
-object_set_from_objects2(S,RefedObjMod,ClassDef,[{typefieldreference,OSName}],
-			Fields,_InterSect) ->
-    %% this is an object set
-    case lists:keysearch(OSName,1,Fields) of
-	{value,{_,TDef}} ->
-	    case TDef#typedef.typespec of
-		#'ObjectSet'{class=_NextClName,set=NextSet} ->%% = TDef#typedef.typespec,
-		    NextSet;
-		#'Object'{def=_ObjDef} ->
-		    mk_object_set_from_object(S,RefedObjMod,TDef,ClassDef)
-%%		    ObjDef
-		    %% error({error,{internal,unexpected_object,TDef}})
-	    end;
-	_ ->
-	    [] % it may be an absent optional field
-    end;
-object_set_from_objects2(S,RefedObjMod,_ClassDef,[{valuefieldreference,OName}|Rest],
-			 Fields,InterSect) ->
-    %% this is an object
-    case lists:keysearch(OName,1,Fields) of
-	{value,{_,TDef}} ->
-	    #'Object'{classname=NextClName,def=ODef}=TDef#typedef.typespec,
-	    {_,_,NextFields}=ODef,
-	    {_,NextClass} = get_referenced_type(S,NextClName),
-	    object_set_from_objects2(S,RefedObjMod,NextClass,Rest,NextFields,InterSect);
-	_ ->
-	    []
-    end;
-object_set_from_objects2(S,RefedObjMod,_ClassDef,[{typefieldreference,OSName}|Rest],
-			Fields,InterSect) ->
-    %% this is an object set
-    Next = {NextClName,NextSet} = 
-	case lists:keysearch(OSName,1,Fields) of
-	    {value,{_,TDef}} when is_record(TDef,'ObjectSet') ->    
-		#'ObjectSet'{class=NextClN,set=NextS} = TDef,
-		{NextClN,NextS};
-	    {value,{_,#typedef{typespec=OS}}} ->
-		%% objectsets in defined syntax will come here as typedef{}
-		%% #'ObjectSet'{class=NextClN,set=NextS} = OS,
-		case OS of
-		    #'ObjectSet'{class=NextClN,set=NextS} ->
-			{NextClN,NextS};
-		    #'Object'{classname=NextClN,def=NextDef} ->
-			{NextClN,[NextDef]}
-		end;
+    %% is parsed as a type.
+    case Class of
+	#type{def=#'Externaltypereference'{}=Def} ->
+	    #'Object'{classname=Def,def=ObjectRef};
 	_ ->
-	    {[],[]}
-    end,
-    case Next of
-	{[],[]} ->
-	    [];
-	_ ->
-	    {_,NextClass} = get_referenced_type(S,NextClName),
-	    object_set_from_objects(S,RefedObjMod,NextClass,Rest,NextSet,InterSect,[])
-    end.
-		
-mk_object_set_from_object(S,RefedObjMod,TDef,Class) -> 
-    #'Object'{classname=_NextClName,def=ODef} = TDef#typedef.typespec,
-    {_,_,NextFields}=ODef,
-
-    UniqueFieldName = 
-	case (catch get_unique_fieldname(S,Class)) of
-	    {error,'__undefined_',_} -> {unique,undefined};
-	    {asn1,Msg,_} -> error({class,Msg,S});
-	    {'EXIT',Msg} -> error({class,{internal_error,Msg},S});
-	    {Other,_} -> Other
-	end,
-    VDef = get_unique_value(S,NextFields,UniqueFieldName),
-    %% XXXXXXXXXXX
-    case VDef of
-	[] ->
-	    ['EXTENSIONMARK'];
-	_ ->
-	    {{RefedObjMod,get_datastr_name(TDef)},VDef,NextFields}    
+	    asn1_error(S, illegal_object)
     end.
-    
-    
-mod_of_obj(_RefedObjMod,{NewMod,ObjName}) 
-  when is_atom(NewMod),is_atom(ObjName) ->
-    NewMod;
-mod_of_obj(RefedObjMod,_) ->
-    RefedObjMod.
-    
-
-merge_sets(Root,{'SingleValue',Ext}) ->
-    merge_sets(Root,Ext);
-merge_sets(Root,Ext) when is_list(Root),is_list(Ext) ->
-    Root ++ Ext;
-merge_sets(Root,Ext) when is_list(Ext) ->
-    [Root|Ext];
-merge_sets(Root,Ext) when is_list(Root) ->
-    Root++[Ext];
-merge_sets(Root,Ext) ->
-    [Root]++[Ext].
-
-reduce_objectset(ObjectSet,Exclusion) ->
-    case Exclusion of
-	{'SingleValue',#'Externalvaluereference'{value=Name}} ->
-	    case lists:keysearch(Name,1,ObjectSet) of
-		{value,El} ->
-		    lists:subtract(ObjectSet,[El]);
-		_ ->
-		    ObjectSet
-	    end
-    end.
-	    
-%% Checks a list of objects or object sets and returns a list of selected
-%% information for the code generation.
-check_object_list(S,ClassRef,ObjectList) ->
-    check_object_list(S,ClassRef,ObjectList,[]).
-
-check_object_list(S,ClassRef,[ObjOrSet|Objs],Acc) ->
-    ?dbg("check_object_list: ~p~n",[ObjOrSet]),
-    case ObjOrSet of
-	ObjDef when is_tuple(ObjDef),(element(1,ObjDef)==object) ->
-	    Def = 
-		check_object(S,#typedef{typespec=ObjDef},
-%			     #'Object'{classname={objectclassname,ClassRef},
-			     #'Object'{classname=ClassRef,
-				       def=ObjDef}),
-	    check_object_list(S,ClassRef,Objs,[{{no_mod,no_name},Def#'Object'.def}|Acc]);
-	{'SingleValue',Ref = #'Externalvaluereference'{}} ->
-	    ?dbg("{SingleValue,Externalvaluereference}~n",[]),
-	    {RefedMod,ObjName,
-	     #'Object'{def=Def}} = check_referenced_object(S,Ref),
-	    check_object_list(S,ClassRef,Objs,[{{RefedMod,ObjName},Def}|Acc]);
-	ObjRef when is_record(ObjRef,'Externalvaluereference') ->
-	    ?dbg("Externalvaluereference~n",[]),
-	    {RefedMod,ObjName,
-	     #'Object'{def=Def}} = check_referenced_object(S,ObjRef),
-	     check_object_list(S,ClassRef,Objs,[{{RefedMod,ObjName},Def}|Acc]);
-	{'ValueFromObject',{_,Object},FieldName} ->
-	    {_,Def} = get_referenced_type(S,Object),
-	    TypeDef = get_fieldname_element(S,Def,FieldName),
-	    (TypeDef#typedef.typespec)#'ObjectSet'.set;
-	ObjSet when is_record(ObjSet,type) ->
-	    ObjSetDef = 
-		case ObjSet#type.def of
-		    Ref when is_record(Ref,'Externaltypereference') ->
-			{_,D} = get_referenced_type(S,ObjSet#type.def),
-			D;
-		    Other ->
-			throw({asn1_error,{'unknown objecset',Other,S}})
-		end,
-	    #'ObjectSet'{set=ObjectsInSet} = 
-		check_object(S,ObjSetDef,ObjSetDef#typedef.typespec),
-	    AccList = transform_set_to_object_list(ObjectsInSet,[]),
-	    check_object_list(S,ClassRef,Objs,AccList++Acc);
-	union ->
-	    check_object_list(S,ClassRef,Objs,Acc);
-	{pos,{objectset,_,DefinedObjectSet},Params} ->
-	    OSDef = #type{def={pt,DefinedObjectSet,Params}},
-	    #'ObjectSet'{set=Set} =
-		check_object(S,ObjOrSet,#'ObjectSet'{class=ClassRef,
-						     set=OSDef}),
-	    check_object_list(S,ClassRef,Objs,Set ++ Acc);
-	{pv,{simpledefinedvalue,DefinedObject},Params} ->
-	    Args = [match_parameters(S,Param,S#state.parameters)||
-		       Param<-Params],
-	    #'Object'{def=Def} =
-		check_object(S,ObjOrSet,
-			     #'Object'{classname=ClassRef ,
-				       def={po,{object,DefinedObject},
-					    Args}}),
-	    check_object_list(S,ClassRef,Objs,[{{no_mod,no_name},Def}|Acc]);
-	{'ObjectSetFromObjects',Os,FieldName} when is_tuple(Os) ->
-	    NewSet =
-		check_ObjectSetFromObjects(S, element(tuple_size(Os), Os),
-					   FieldName,[]),
-	    check_object_list(S,ClassRef,Objs,NewSet++Acc);
-	{{'ObjectSetFromObjects',Os,FieldName},InterSection}
-	when is_tuple(Os) ->
-	    NewSet =
-		check_ObjectSetFromObjects(S, element(tuple_size(Os), Os),
-					   FieldName,InterSection),
-	    check_object_list(S,ClassRef,Objs,NewSet++Acc);
-	Other ->
-	    exit({error,{'unknown object',Other},S})
-    end;
-%% Finally reverse the accumulated list and if there are any extension
-%% marks in the object set put one indicator of that in the end of the
-%% list.
-check_object_list(_,_,[],Acc) ->
-    lists:reverse(Acc).
 
 check_referenced_object(S,ObjRef) 
   when is_record(ObjRef,'Externalvaluereference')->
@@ -1213,195 +1002,134 @@ check_referenced_object(S,ObjRef)
 	     check_object(update_state(S,RefedMod),ObjectDef,ObjectDef#typedef.typespec)}
     end.
 
-check_ObjectSetFromObjects(S,ObjName,FieldName,InterSection) ->
-    {RefedMod,TDef} = get_referenced_type(S,ObjName),
-    ObjOrSet = check_object(update_state(S,RefedMod),TDef,TDef#typedef.typespec),
-    InterSec = prepare_intersection(S,InterSection),
-    _NewSet = object_set_from_objects(S,RefedMod,FieldName,ObjOrSet,InterSec).
+check_ObjectSetFromObjects(S, ObjName, Fields) ->
+    {_,Obj0} = get_referenced_type(S, ObjName),
+    case check_object(S, Obj0, Obj0#typedef.typespec) of
+	#'ObjectSet'{}=Obj1 ->
+	    get_fieldname_set(S, Obj1, Fields);
+	#'Object'{classname=Class,
+		  def={object,_,ObjFs}} ->
+	    ObjSet = #'ObjectSet'{class=Class,
+				  set=[{'_','_',ObjFs}]},
+	    get_fieldname_set(S, ObjSet, Fields)
+    end.
 
-prepare_intersection(_S,[]) ->
-    [];
-prepare_intersection(S,{'EXCEPT',ObjRef}) ->
-    except_names(S,ObjRef);
-prepare_intersection(_S,T) ->
-    exit({error,{internal_error,not_implemented,object_set_from_objects,T}}).
-except_names(_S,{'SingleValue',#'Externalvaluereference'{value=ObjName}})  ->
-    [{except,ObjName}];
-except_names(_,T) ->
-    exit({error,{internal_error,not_implemented,object_set_from_objects,T}}).
-
-osfo_intersection(InterSect,ObjList) ->
-    Res = [X|| X = {{_,N},_,_} <- ObjList,
-	       lists:member({except,N},InterSect) == false],
-    case lists:member('EXTENSIONMARK',ObjList) of
-	true ->
-	    Res ++ ['EXTENSIONMARK'];
+%%  get_type_from_object(State, ObjectOrObjectSet, [{RefType,FieldName}]) ->
+%%    Type
+get_type_from_object(S, Object, FieldNames)
+  when is_record(Object, 'Externaltypereference');
+       is_record(Object, 'Externalvaluereference') ->
+    extract_field(S, Object, FieldNames).
+
+%% get_value_from_object(State, ObjectOrObjectSet, [{RefType,FieldName}]) ->
+%%    UntaggedValue
+get_value_from_object(S, Def, FieldNames) ->
+    case extract_field(S, Def, FieldNames) of
+	#valuedef{value=Val} ->
+	    Val;
+	{valueset,_}=Val ->
+	    Val;
 	_ ->
-	    Res
+	    asn1_error(S, illegal_value)
     end.
 
-%%  get_fieldname_element/3
-%%  gets the type/value/object/... of the referenced element in FieldName
-%%  FieldName is a list and may have more than one element.
-%%  Each element in FieldName can be either {typefieldreference,AnyFieldName}
-%%  or {valuefieldreference,AnyFieldName}
-%%  Def is the def of the first object referenced by FieldName
-get_fieldname_element(S,Def,[{_RefType,FieldName}]) when is_record(Def,typedef) ->
-    {_,_,ObjComps} = (Def#typedef.typespec)#'Object'.def,
-    check_fieldname_element(S,lists:keysearch(FieldName,1,ObjComps));
-get_fieldname_element(S,Def,[{_RefType,FieldName}|Rest])
-  when is_record(Def,typedef) ->
-    %% As FieldName is followd by other FieldNames it has to be an
-    %% object or objectset.
-    {_,_,ObjComps} = (Def#typedef.typespec)#'Object'.def,
-    NewDef = check_fieldname_element(S,lists:keysearch(FieldName,1,ObjComps)),
-    ObjDef = fun(#'Object'{def=D}) -> D;
-		(#'ObjectSet'{set=Set}) -> Set
-	     end 
-	       (NewDef),
-    case ObjDef of
+%% extract_field(State, ObjectOrObjectSet, [{RefType,FieldName}])
+%%   RefType = typefieldreference | valuefieldreference
+%%
+%%   Get the type, value, object, object set, or value set from the
+%%   referenced object or object set. The list of field name tuples
+%%   may have more than one element.  All field names but the last
+%%   refers to either an object or object set.
+
+extract_field(S, Def0, FieldNames) ->
+    {_,Def1} = get_referenced_type(S, Def0),
+    Def2 = check_object(S, Def1, Def1#typedef.typespec),
+    Def = Def1#typedef{typespec=Def2},
+    get_fieldname_element(S, Def, FieldNames).
+
+%% get_fieldname_element(State, Element, [{RefType,FieldName}]
+%%   RefType = typefieldreference | valuefieldreference
+%%
+%%   Get the type, value, object, object set, or value set from the referenced
+%%   element. The list of field name tuples may have more than one element.
+%%   All field names but the last refers to either an object or object set.
+
+get_fieldname_element(S, Object0, [{_RefType,FieldName}|Fields]) ->
+    Object = case Object0 of
+		 #typedef{typespec=#'Object'{def=Obj}} -> Obj;
+		 {_,_,_}=Obj -> Obj
+	     end,
+    case check_fieldname_element(S, FieldName, Object) of
+	#'Object'{def=D} when Fields =/= [] ->
+	    get_fieldname_element(S, D, Fields);
+	#'ObjectSet'{}=Set ->
+	    get_fieldname_set(S, Set, Fields);
+	Result when Fields =:= [] ->
+	    Result
+    end;
+get_fieldname_element(_S, Def, []) ->
+    Def.
+
+get_fieldname_set(S, #'ObjectSet'{set=Set0}, T) ->
+    get_fieldname_set_1(S, Set0, T, []).
+
+get_fieldname_set_1(S, ['EXTENSIONMARK'=Ext|T], Fields, Acc) ->
+    get_fieldname_set_1(S, T, Fields, [Ext|Acc]);
+get_fieldname_set_1(S, [H|T], Fields, Acc) ->
+    try get_fieldname_element(S, H, Fields) of
 	L when is_list(L) ->
-	    [get_fieldname_element(S,X,Rest) || X <- L];
-	_ ->
-	    get_fieldname_element(S,ObjDef,Rest)
+	    get_fieldname_set_1(S, T, Fields, L++Acc);
+	{valueset,L} ->
+	    get_fieldname_set_1(S, T, Fields, L++Acc);
+	Other ->
+	    get_fieldname_set_1(S, T, Fields, [Other|Acc])
+    catch
+	throw:{error,_} ->
+	    get_fieldname_set_1(S, T, Fields, Acc)
     end;
-get_fieldname_element(S,{object,_,Fields},[{_RefType,FieldName}|Rest]) ->
-    NewDef = check_fieldname_element(S,lists:keysearch(FieldName,1,Fields)),
-    get_fieldname_element(S,NewDef,Rest);
-get_fieldname_element(_S,Def,[]) -> 
-    Def;
-get_fieldname_element(_S,Def,[{_RefType,_FieldName}|_RestFName]) 
-  when is_record(Def,typedef) ->
-    ok.
+get_fieldname_set_1(_, [], _Fields, Acc) ->
+    case Acc of
+	[#valuedef{}|_] ->
+	    {valueset,Acc};
+	_ ->
+	    Acc
+    end.
 
-check_fieldname_element(S,{value,{_,Def}}) ->
-    check_fieldname_element(S,Def);
-check_fieldname_element(S, #typedef{typespec=Ts}=TDef) ->
+check_fieldname_element(S, Name, {_,_,Fields}) ->
+    case lists:keyfind(Name, 1, Fields) of
+	{Name,Def} ->
+	    check_fieldname_element_1(S, Def);
+	false ->
+	    asn1_error(S, {undefined_field,Name})
+    end.
+
+check_fieldname_element_1(S, #typedef{typespec=Ts}=TDef) ->
     case Ts of
 	#'Object'{} ->
 	    check_object(S, TDef, Ts);
 	_ ->
 	    check_type(S, TDef, Ts)
     end;
-check_fieldname_element(S, #valuedef{}=VDef) ->
+check_fieldname_element_1(S, #valuedef{}=VDef) ->
     try
 	check_value(S, VDef)
     catch
-	throw:{objectdef} ->
+	throw:{asn1_class, _} ->
 	    #valuedef{checked=C,pos=Pos,name=N,type=Type,
 		      value=Def} = VDef,
 	    ClassName = Type#type.def,
 	    NewSpec = #'Object'{classname=ClassName,def=Def},
 	    NewDef = #typedef{checked=C,pos=Pos,name=N,typespec=NewSpec},
-	    check_fieldname_element(S, NewDef)
+	    check_fieldname_element_1(S, NewDef)
     end;
-check_fieldname_element(S,Eref)
-  when is_record(Eref,'Externaltypereference');
-       is_record(Eref,'Externalvaluereference') ->
-    {_,TDef}=get_referenced_type(S,Eref),
-    check_fieldname_element(S,TDef);
-check_fieldname_element(S,Other) ->
-    throw({error,{assigned_object_error,"not_assigned_object",Other,S}}).
+check_fieldname_element_1(_S, {value_tag,Val}) ->
+    #valuedef{value=Val};
+check_fieldname_element_1(S, Eref)
+  when is_record(Eref, 'Externaltypereference');
+       is_record(Eref, 'Externalvaluereference') ->
+    {_,TDef} = get_referenced_type(S, Eref),
+    check_fieldname_element_1(S, TDef).
     
-transform_set_to_object_list([{Name,_UVal,Fields}|Objs],Acc) ->
-    transform_set_to_object_list(Objs,[{Name,{object,generatesyntax,Fields}}|Acc]);
-transform_set_to_object_list(['EXTENSIONMARK'|Objs],Acc) ->
-%%    transform_set_to_object_list(Objs,['EXTENSIONMARK'|Acc]);
-    transform_set_to_object_list(Objs,Acc);
-transform_set_to_object_list([],Acc) ->
-    Acc.
-
-get_unique_valuelist(_S,ObjSet,{unique,undefined}) -> % no unique field in object
-    lists:map(fun({N,{_,_,F}})->{N,no_unique_value,F};
-		 (V={_,_,_}) ->V;
-		 ({A,B}) -> {A,no_unique_value,B} 
-	      end, ObjSet);
-get_unique_valuelist(S,ObjSet,{UFN,Opt}) ->
-    get_unique_vlist(S,ObjSet,UFN,Opt,[]).
-
-
-get_unique_vlist(_S,[],_,_,[]) ->
-    ['EXTENSIONMARK'];
-get_unique_vlist(S,[],_,Opt,Acc) ->
-    case catch check_uniqueness(remove_duplicate_objects(Acc)) of
-	{asn1_error,_} when Opt =/= 'OPTIONAL' ->
-	    error({'ObjectSet',"not unique objects in object set",S});
-	{asn1_error,_} ->
-	    lists:reverse(Acc);
-	_ ->
-	    lists:reverse(Acc)
-    end;
-get_unique_vlist(S,['EXTENSIONMARK'|Rest],UniqueFieldName,Opt,Acc) ->
-    get_unique_vlist(S,Rest,UniqueFieldName,Opt,Acc);
-get_unique_vlist(S,[{ObjName,Obj}|Rest],UniqueFieldName,Opt,Acc) ->
-    {_,_,Fields} = Obj,
-    NewObjInf = 
-	case get_unique_value(S,Fields,UniqueFieldName) of
-	    #valuedef{value=V} -> [{ObjName,V,Fields}];
-	    [] -> []; % maybe the object only was a reference to an
-                     % empty object set.
-	    no_unique_value -> [{ObjName,no_unique_value,Fields}]
-	end,
-    get_unique_vlist(S,Rest,UniqueFieldName,Opt,NewObjInf++Acc);
-
-get_unique_vlist(S,[V={_,_,_}|Rest],UniqueFieldName,Opt,Acc) ->
-    get_unique_vlist(S,Rest,UniqueFieldName,Opt,[V|Acc]).
-
-get_unique_value(S,Fields,UniqueFieldName) ->
-    Module = S#state.mname,
-    case lists:keysearch(UniqueFieldName,1,Fields) of
-	{value,Field} ->
-	    case element(2,Field) of
-		VDef when is_record(VDef,valuedef) ->
-		    VDef;
-		{'ValueFromObject',Object,Name} ->
-		    case Object of
-			{object,Ext} when is_record(Ext,'Externaltypereference') ->
-			    OtherModule = Ext#'Externaltypereference'.module,
-			    ExtObjName = Ext#'Externaltypereference'.type,
-			    ObjDef = asn1_db:dbget(OtherModule,ExtObjName),
-			    ObjSpec = ObjDef#typedef.typespec,
-			    get_unique_value(OtherModule,element(3,ObjSpec),Name);
-			{object,{_,_,ObjName}} ->
-			    ObjDef = asn1_db:dbget(Module,ObjName),
-			    ObjSpec = ObjDef#typedef.typespec,
-			    get_unique_value(Module,element(3,ObjSpec),Name);
-			{po,Object,_Params} ->
-			    exit({error,{'parameterized object not implemented yet',
-					 Object},S})
-		    end;
-		Value when is_atom(Value);is_number(Value) ->
-		    #valuedef{value=Value,module=Module};
-		{'CHOICE',{C,Value}} when is_atom(C) ->
-		    %% #valuedef{value=normalize_value(S,element(3,Field),VDef,[])}
-		    case Value of
-			Scalar when is_atom(Scalar);is_number(Scalar) ->
-			    #valuedef{value=Value,module=Module};
-			Eref = #'Externalvaluereference'{} ->
-			    element(2,get_referenced_type(S,Eref))
-		    end
-	    end;
-	false ->
-	    case Fields of
-		[{_,#typedef{typespec=#'ObjectSet'{set=['EXTENSIONMARK']}}}] -> 
-		    [];
-		_ ->
-		    no_unique_value
-	    end
-    end.
-
-check_uniqueness(NameValueList) ->
-    check_uniqueness1(lists:keysort(2,NameValueList)).
-
-check_uniqueness1([]) ->
-    true;
-check_uniqueness1([_]) ->
-    true;
-check_uniqueness1([{_,N,_},{_,N,_}|_Rest]) ->
-    throw({asn1_error,{'objects in set must have unique values in UNIQUE fields',N}});
-check_uniqueness1([_|Rest]) ->
-    check_uniqueness1(Rest).
-
 %% instantiate_po/4
 %% ClassDef is the class of Object,
 %% Object is the Parameterized object, which is referenced,
@@ -1410,8 +1138,7 @@ check_uniqueness1([_|Rest]) ->
 instantiate_po(S=#state{parameters=_OldArgs},_ClassDef,Object,ArgsList) when is_record(Object,pobjectdef) ->
     FormalParams = get_pt_args(Object),
     MatchedArgs = match_args(S,FormalParams,ArgsList,[]),
-%    NewS = S#state{type=Object,parameters=MatchedArgs++OldArgs},
-    NewS = S#state{type=Object,parameters=MatchedArgs},
+    NewS = S#state{parameters=MatchedArgs},
     check_object(NewS,Object,#'Object'{classname=Object#pobjectdef.class,
 				    def=Object#pobjectdef.def}).
 
@@ -1421,20 +1148,14 @@ instantiate_po(S=#state{parameters=_OldArgs},_ClassDef,Object,ArgsList) when is_
 %% on the right side of the assignment,
 %% ArgsList is the list of actual parameters, i.e. real objects
 instantiate_pos(S=#state{parameters=_OldArgs},ClassRef,ObjectSetDef,ArgsList) ->
-%    ClassName = ClassDef#classdef.name,
     FormalParams = get_pt_args(ObjectSetDef),
     OSet = case get_pt_spec(ObjectSetDef) of
-	      {valueset,Set} -> 
-% 		   #'ObjectSet'{class=name2Extref(S#state.mname,
-% 						  ClassName),set=Set};
-		   #'ObjectSet'{class=ClassRef,set=Set};
-	      Set when is_record(Set,'ObjectSet') -> Set;
-	       _ ->
-		   error({type,"parameterized object set failure",S})
+	       {valueset,Set} -> #'ObjectSet'{class=ClassRef,set=Set};
+	       Set when is_record(Set,'ObjectSet') -> Set;
+	       _ -> asn1_error(S, invalid_objectset)
 	   end,
     MatchedArgs = match_args(S,FormalParams,ArgsList,[]),
-%    NewS = S#state{type=ObjectSetDef,parameters=MatchedArgs++OldArgs},
-    NewS = S#state{type=ObjectSetDef,parameters=MatchedArgs},
+    NewS = S#state{parameters=MatchedArgs},
     check_object(NewS,ObjectSetDef,OSet).
 
     
@@ -1468,7 +1189,7 @@ gen_incl1(S,Fields,[C|CFields]) ->
 				check_object(S,TDef,TDef#typedef.typespec);
 			    ERef ->
 				{_,T} = get_referenced_type(S,ERef),
-				check_object(S,T,object_to_check(T))
+				check_object(S, T, object_to_check(S, T))
 			end,
 		    case gen_incl(S,ObjDef#'Object'.def,
 				  ClassFields) of
@@ -1485,7 +1206,7 @@ gen_incl1(S,Fields,[C|CFields]) ->
     end.
 
 get_objclass_fields(S,Eref=#'Externaltypereference'{}) ->
-    {_,ClassDef} = get_referenced_type(S,Eref),
+    {_,ClassDef} = get_referenced_type(S,Eref, true),
     get_objclass_fields(S,ClassDef);
 get_objclass_fields(S,CD=#classdef{typespec=#'Externaltypereference'{}}) ->
     get_objclass_fields(S,CD#classdef.typespec);
@@ -1501,10 +1222,10 @@ gen_incl_set(S,Fields,#typedef{typespec=#type{def=Eref}})
     {_,CDef} = get_referenced_type(S,Eref),
     gen_incl_set(S,Fields,CDef);
 gen_incl_set(S,Fields,ClassDef) ->
-    case catch get_unique_fieldname(S,ClassDef) of
-	Tuple when tuple_size(Tuple) =:= 3 ->
+    case get_unique_fieldname(S, ClassDef) of
+	no_unique ->
 	    false;
-	_ ->
+	{_, _} ->
 	    gen_incl_set1(S,Fields,
 			  (ClassDef#classdef.typespec)#objectclass.fields)
     end.
@@ -1529,475 +1250,390 @@ gen_incl_set1(S,[Object|Rest],CFields)->
 	    gen_incl_set1(S,Rest,CFields)
     end.
 
-check_objectdefn(S,Def,CDef) when is_record(CDef,classdef) ->
-    WithSyntax = (CDef#classdef.typespec)#objectclass.syntax,
-    ClassFields = (CDef#classdef.typespec)#objectclass.fields,
+
+%%%
+%%% Check an object definition.
+%%%
+
+check_objectdefn(S, Def, #classdef{typespec=ObjClass}) ->
+    #objectclass{syntax=Syntax0,fields=ClassFields} = ObjClass,
     case Def of
 	{object,defaultsyntax,Fields} ->
-	    check_defaultfields(S,Fields,ClassFields);
+	    check_defaultfields(S, Fields, ClassFields);
 	{object,definedsyntax,Fields} ->
-	    {_,WSSpec} = WithSyntax,
-	    NewFields = 
-		case catch( convert_definedsyntax(S,Fields,WSSpec,
-						  ClassFields,[])) of
-		    {asn1,{_ErrorType,ObjToken,ClassToken}} ->
-			throw({asn1,{'match error in object',ObjToken,
-				     'found in object',ClassToken,'found in class'}});
-		    Err={asn1,_} -> throw(Err);
-		    Err={'EXIT',_} -> throw(Err);
-		    DefaultFields when is_list(DefaultFields) ->
-			DefaultFields
-		end,
-	    {object,defaultsyntax,NewFields};
-	{object,_ObjectId} -> % This is a DefinedObject
-	    fixa;
-	Other ->
-	    exit({error,{objectdefn,Other}})
+	    Syntax = get_syntax(S, Syntax0, ClassFields),
+	    case match_syntax(S, Syntax, Fields, []) of
+		{match,NewFields,[]} ->
+		    {object,defaultsyntax,NewFields};
+		{match,_,[What|_]} ->
+		    syntax_match_error(S, What);
+		{nomatch,[What|_]} ->
+		    syntax_match_error(S, What);
+		{nomatch,[]} ->
+		    syntax_match_error(S)
+	    end
+    end.
+
+
+%%%
+%%% Pre-process the simplified syntax so that it can be more
+%%% easily matched.
+%%%
+
+get_syntax(_, {preprocessed_syntax,Syntax}, _) ->
+    Syntax;
+get_syntax(S, {'WITH SYNTAX',Syntax}, ClassFields) ->
+    preprocess_syntax(S, Syntax, ClassFields).
+
+preprocess_syntax(S, Syntax0, Cs) ->
+    Syntax = preprocess_syntax_1(S, Syntax0, Cs, true),
+    Present0 = preprocess_get_fields(Syntax, []),
+    Present1 = lists:sort(Present0),
+    Present = ordsets:from_list(Present1),
+    case Present =:= Present1 of
+	false ->
+	    Dupl = Present1 -- Present,
+	    asn1_error(S, {syntax_duplicated_fields,Dupl});
+	true ->
+	    ok
+    end,
+    Mandatory0 = get_mandatory_class_fields(Cs),
+    Mandatory = ordsets:from_list(Mandatory0),
+    case ordsets:subtract(Mandatory, Present) of
+	[] ->
+	    Syntax;
+	[_|_]=Missing ->
+	    asn1_error(S, {syntax_missing_mandatory_fields,Missing})
     end.
 
+preprocess_syntax_1(S, [H|T], Cs, Mandatory) when is_list(H) ->
+    [{optional,preprocess_syntax_1(S, H, Cs, false)}|
+     preprocess_syntax_1(S, T, Cs, Mandatory)];
+preprocess_syntax_1(S, [{valuefieldreference,Name}|T], Cs, Mandatory) ->
+    F = preprocess_check_field(S, Name, Cs, Mandatory),
+    [F|preprocess_syntax_1(S, T, Cs, Mandatory)];
+preprocess_syntax_1(S, [{typefieldreference,Name}|T], Cs, Mandatory) ->
+    F = preprocess_check_field(S, Name, Cs, Mandatory),
+    [F|preprocess_syntax_1(S, T, Cs, Mandatory)];
+preprocess_syntax_1(S,[{Token,_}|T], Cs, Mandatory) when is_atom(Token) ->
+    [{token,Token}|preprocess_syntax_1(S, T, Cs, Mandatory)];
+preprocess_syntax_1(S, [Token|T], Cs, Mandatory) when is_atom(Token) ->
+    [{token,Token}|preprocess_syntax_1(S, T, Cs, Mandatory)];
+preprocess_syntax_1(_, [], _, _) -> [].
+
+preprocess_check_field(S, Name, Cs, Mandatory) ->
+    case lists:keyfind(Name, 2, Cs) of
+	Tuple when is_tuple(Tuple) ->
+	    case not Mandatory andalso is_mandatory_class_field(Tuple) of
+		true ->
+		    asn1_error(S, {syntax_mandatory_in_optional_group,Name});
+		false ->
+		    {field,Tuple}
+	    end;
+	false ->
+	    asn1_error(S, {syntax_undefined_field,Name})
+    end.
+
+preprocess_get_fields([{field,F}|T], Acc) ->
+    Name = element(2, F),
+    preprocess_get_fields(T, [Name|Acc]);
+preprocess_get_fields([{optional,L}|T], Acc) ->
+    preprocess_get_fields(T, preprocess_get_fields(L, Acc));
+preprocess_get_fields([_|T], Acc) ->
+    preprocess_get_fields(T, Acc);
+preprocess_get_fields([], Acc) ->
+    Acc.
+
+%%%
+%%% Match the actual fields in the object definition to
+%%% the pre-processed simplified syntax.
+%%%
+
+match_syntax(S, [{token,Token}|T], [A|As]=Args, Acc) ->
+    case A of
+	{word_or_setting,_,#'Externaltypereference'{type=Token}} ->
+	    match_syntax(S, T, As, Acc);
+	{Token,Line} when is_integer(Line) ->
+	    match_syntax(S, T, As, Acc);
+	_ ->
+	    {nomatch,Args}
+    end;
+match_syntax(S, [{field,Field}|T]=Fs, [A|As0]=Args0, Acc) ->
+    try match_syntax_type(S, Field, A) of
+	{match,Match} ->
+	    match_syntax(S, T, As0, lists:reverse(Match)++Acc);
+	{params,_Name,#ptypedef{args=Params}=P,Ref} ->
+	    {Args,As} = lists:split(length(Params), As0),
+	    Val = match_syntax_params(S, P, Ref, Args),
+	    match_syntax(S, Fs, [Val|As], Acc)
+    catch
+	_:_ ->
+	    {nomatch,Args0}
+    end;
+match_syntax(S, [{optional,L}|T], As0, Acc)         ->
+    case match_syntax(S, L, As0, []) of
+	{match,Match,As} ->
+	    match_syntax(S, T, As, lists:reverse(Match)++Acc);
+	{nomatch,As0} ->
+	    match_syntax(S, T, As0, Acc);
+	{nomatch,_}=NoMatch ->
+	    NoMatch
+    end;
+match_syntax(_, [_|_], [], _Acc)                    ->
+    {nomatch,[]};
+match_syntax(_, [], As, Acc)                        ->
+    {match,Acc,As}.
+
+match_syntax_type(S, Type, {value_tag,Val})         ->
+    match_syntax_type(S, Type, Val);
+match_syntax_type(S, Type, {setting,_,Val})         ->
+    match_syntax_type(S, Type, Val);
+match_syntax_type(S, Type, {word_or_setting,_,Val}) ->
+    match_syntax_type(S, Type, Val);
+match_syntax_type(_S, _Type, {Atom,Line})
+  when is_atom(Atom), is_integer(Line) ->
+    throw(nomatch);
+match_syntax_type(S, {fixedtypevaluefield,Name,#type{}=T,_,_}=Type,
+		  #'Externalvaluereference'{}=ValRef0) ->
+    try get_referenced_type(S, ValRef0) of
+	{M,#valuedef{}=ValDef} ->
+	    match_syntax_type(update_state(S, M), Type, ValDef)
+    catch
+	throw:{error,_} ->
+	    ValRef = #valuedef{name=Name,
+			       type=T,
+			       value=ValRef0,
+			       module=S#state.mname},
+	    match_syntax_type(S, Type, ValRef)
+    end;
+match_syntax_type(S, {fixedtypevaluefield,Name,#type{},_,_}, #valuedef{}=Val0) ->
+    Val = check_value(S, Val0),
+    {match,[{Name,Val}]};
+match_syntax_type(S, {fixedtypevaluefield,Name,#type{},_,_},
+		  {'ValueFromObject',{object,Object},FieldNames}) ->
+    Val = extract_field(S, Object, FieldNames),
+    {match,[{Name,Val}]};
+match_syntax_type(S, {fixedtypevaluefield,Name,#type{}=T,_,_}=Type, Any) ->
+    ValDef = #valuedef{name=Name,type=T,value=Any,module=S#state.mname},
+    match_syntax_type(S, Type, ValDef);
+match_syntax_type(_S, {fixedtypevaluesetfield,Name,#type{},_}, Any) ->
+    {match,[{Name,Any}]};
+match_syntax_type(S, {objectfield,Name,_,_,_}, #'Externalvaluereference'{}=Ref) ->
+    {M,Obj} = get_referenced_type(S, Ref),
+    check_object(S, Obj, object_to_check(S, Obj)),
+    {match,[{Name,Ref#'Externalvaluereference'{module=M}}]};
+match_syntax_type(S, {objectfield,Name,Class,_,_}, {object,_,_}=ObjDef) ->
+    InlinedObjName = list_to_atom(lists:concat([S#state.tname,
+						'_',Name])),
+    ObjSpec = #'Object'{classname=Class,def=ObjDef},
+    CheckedObj = check_object(S, #typedef{typespec=ObjSpec}, ObjSpec),
+    InlObj = #typedef{checked=true,name=InlinedObjName,typespec=CheckedObj},
+    ObjKey = {InlinedObjName, InlinedObjName},
+    insert_once(S, inlined_objects, ObjKey),
+    %% Which module to use here? Could it be other than top_module?
+    asn1_db:dbput(get(top_module), InlinedObjName, InlObj),
+    {match,[{Name,InlObj}]};
+match_syntax_type(_S, {objectfield,Name,_,_,_}, Any) ->
+    {match,[{Name,Any}]};
+match_syntax_type(S, {objectsetfield,Name,CDef0,_}, Any) ->
+    CDef = case CDef0 of
+	       #type{def=CDef1} -> CDef1;
+	       CDef1 -> CDef1
+	   end,
+    case match_syntax_objset(S, Any, CDef) of
+	#typedef{typespec=#'ObjectSet'{}=Ts0}=Def ->
+	    Ts = check_object(S, Def, Ts0),
+	    {match,[{Name,Def#typedef{checked=true,typespec=Ts}}]};
+	_ ->
+	    syntax_match_error(S, Any)
+    end;
+match_syntax_type(S, {typefield,Name0,_}, #type{def={pt,_,_}=Def}=Actual) ->
+    %% This is an inlined type. If constructed type, save in data base.
+    T = check_type(S, #typedef{typespec=Actual}, Actual),
+    #'Externaltypereference'{type=PtName} = element(2, Def),
+    NameList = [PtName,S#state.tname],
+    Name = list_to_atom(asn1ct_gen:list2name(NameList)),
+    NewTDef = #typedef{checked=true,name=Name,typespec=T},
+    asn1_db:dbput(S#state.mname, Name, NewTDef),
+    insert_once(S, parameterized_objects, {Name,type,NewTDef}),
+    {match,[{Name0,NewTDef}]};
+match_syntax_type(S, {typefield,Name,_}, #type{def=#'ObjectClassFieldType'{}}=Actual) ->
+    T = check_type(S, #typedef{typespec=Actual}, Actual),
+    {match,[{Name,ocft_def(T)}]};
+match_syntax_type(S, {typefield,Name,_}, #type{def=#'Externaltypereference'{}=Ref}) ->
+    match_syntax_external(S, Name, Ref);
+match_syntax_type(S, {typefield,Name,_}, #type{def=Def}=Actual) ->
+    T = check_type(S, #typedef{typespec=Actual}, Actual),
+    TypeName = asn1ct_gen:type(asn1ct_gen:get_inner(Def)),
+    {match,[{Name,#typedef{checked=true,name=TypeName,typespec=T}}]};
+match_syntax_type(S, {typefield,Name,_}, #'Externaltypereference'{}=Ref) ->
+    match_syntax_external(S, Name, Ref);
+match_syntax_type(_S, {variabletypevaluefield,Name,_,_}, Any) ->
+    {match,[{Name,Any}]};
+match_syntax_type(_S, {variabletypevaluesetfield,Name,_,_}, Any) ->
+    {match,[{Name,Any}]};
+match_syntax_type(_S, _Type, _Actual) ->
+    throw(nomatch).
+
+match_syntax_params(S0, #ptypedef{name=Name}=PtDef,
+		    #'Externaltypereference'{module=M,type=N}=ERef0, Args) ->
+    S = S0#state{mname=M,module=load_asn1_module(S0, M),tname=Name},
+    Type = check_type(S, PtDef, #type{def={pt,ERef0,Args}}),
+    ERefName = new_reference_name(N),
+    ERef = #'Externaltypereference'{type=ERefName,module=S0#state.mname},
+    TDef = #typedef{checked=true,name=ERefName,typespec=Type},
+    insert_once(S0, parameterized_objects, {ERefName,type,TDef}),
+    asn1_db:dbput(S0#state.mname, ERef#'Externaltypereference'.type, TDef),
+    ERef.
+
+match_syntax_external(#state{mname=Mname}=S0, Name, Ref0) ->
+    {M,T0} = get_referenced_type(S0, Ref0),
+    Ref1 = Ref0#'Externaltypereference'{module=M},
+    case T0 of
+	#ptypedef{} ->
+	    {params,Name,T0,Ref1};
+	#typedef{checked=false}=TDef0 when Mname =/= M  ->
+	    %% This typedef is an imported type (or maybe a set.asn
+	    %% compilation).
+	    S = S0#state{mname=M,module=load_asn1_module(S0, M),
+			 tname=get_datastr_name(TDef0)},
+	    Type = check_type(S, TDef0, TDef0#typedef.typespec),
+	    TDef = TDef0#typedef{checked=true,typespec=Type},
+	    asn1_db:dbput(M, get_datastr_name(TDef), TDef),
+	    {match,[{Name,merged_name(S, Ref1)}]};
+	TDef ->
+	    %% This might be a renamed type in a set of specs,
+	    %% so rename the ref.
+	    Type = asn1ct:get_name_of_def(TDef),
+	    Ref = Ref1#'Externaltypereference'{type=Type},
+	    {match,[{Name,Ref}]}
+    end.
+
+match_syntax_objset(_S, {element_set,_,_}=Set, ClassDef) ->
+    make_objset(ClassDef, Set);
+match_syntax_objset(S, #'Externaltypereference'{}=Ref, _) ->
+    {_,T} = get_referenced_type(S, Ref),
+    T;
+match_syntax_objset(S, #'Externalvaluereference'{}=Ref, _) ->
+    {_,T} = get_referenced_type(S, Ref),
+    T;
+match_syntax_objset(_, [_|_]=Set, ClassDef) ->
+    make_objset(ClassDef, Set);
+match_syntax_objset(S, {object,definedsyntax,Words}, ClassDef) ->
+    case Words of
+	[Word] ->
+	    match_syntax_objset_1(S, Word, ClassDef);
+	[_|_] ->
+	    %% More than one word does not make sense.
+	    none
+    end;
+match_syntax_objset(S, #type{def=#'Externaltypereference'{}=Set}, ClassDef) ->
+    match_syntax_objset(S, Set, ClassDef);
+match_syntax_objset(_, #type{}, _) ->
+    none.
+
+match_syntax_objset_1(S, {setting,_,Set}, ClassDef) ->
+    %% Word that starts with an uppercase letter.
+    match_syntax_objset(S, Set, ClassDef);
+match_syntax_objset_1(S, {word_or_setting,_,Set}, ClassDef) ->
+    %% Word in uppercase/hyphens only.
+    match_syntax_objset(S, Set, ClassDef);
+match_syntax_objset_1(S, #type{def={'TypeFromObject', {object,Object}, FNs}},
+		      ClassDef) ->
+    Set = extract_field(S, Object, FNs),
+    [_|_] = Set,
+    #typedef{checked=true,typespec=#'ObjectSet'{class=ClassDef,set=Set}};
+match_syntax_objset_1(_, #type{def=#'ObjectClassFieldType'{}}=Set, ClassDef) ->
+    make_objset(ClassDef, Set);
+match_syntax_objset_1(_, {object,_,_}=Object, ClassDef) ->
+    make_objset(ClassDef, [Object]).
+
+make_objset(ClassDef, Set) ->
+    #typedef{typespec=#'ObjectSet'{class=ClassDef,set=Set}}.
+
+syntax_match_error(S) ->
+    asn1_error(S, syntax_nomatch).
+
+syntax_match_error(S, What0) ->
+    What = printable_string(What0),
+    asn1_error(S, {syntax_nomatch,What}).
+
+printable_string(Def) ->
+    printable_string_1(Def).
+
+printable_string_1({word_or_setting,_,Def}) ->
+    printable_string_1(Def);
+printable_string_1({value_tag,V}) ->
+    printable_string_1(V);
+printable_string_1({#seqtag{val=Val1},Val2}) ->
+    atom_to_list(Val1) ++ " " ++ printable_string_1(Val2);
+printable_string_1(#type{def=Def}) ->
+    atom_to_list(asn1ct_gen:get_inner(Def));
+printable_string_1(#'Externaltypereference'{type=Type}) ->
+    atom_to_list(Type);
+printable_string_1(#'Externalvaluereference'{value=Type}) ->
+    atom_to_list(Type);
+printable_string_1({Atom,Line}) when is_atom(Atom), is_integer(Line) ->
+    q(Atom);
+printable_string_1({object,definedsyntax,L}) ->
+    q(string:join([printable_string_1(Item) || Item <- L], " "));
+printable_string_1([_|_]=Def) ->
+    case lists:all(fun is_integer/1, Def) of
+	true ->
+	    lists:flatten(io_lib:format("~p", [Def]));
+	false ->
+	    q(string:join([printable_string_1(Item) || Item <- Def], " "))
+    end;
+printable_string_1(Def) ->
+    lists:flatten(io_lib:format("~p", [Def])).
+
+q(S) ->
+    lists:concat(["\"",S,"\""]).
+
 check_defaultfields(S, Fields, ClassFields) ->
     Present = ordsets:from_list([F || {F,_} <- Fields]),
     Mandatory0 = get_mandatory_class_fields(ClassFields),
     Mandatory = ordsets:from_list(Mandatory0),
     All = ordsets:from_list([element(2, F) || F <- ClassFields]),
-    #state{type=T,tname=Obj} = S,
+    #state{tname=Obj} = S,
     case ordsets:subtract(Present, All) of
 	[] ->
 	    ok;
 	[_|_]=Invalid ->
-	    asn1_error(S, T, {invalid_fields,Invalid,Obj})
+	    asn1_error(S, {invalid_fields,Invalid,Obj})
     end,
     case ordsets:subtract(Mandatory, Present) of
 	[] ->
 	    check_defaultfields_1(S, Fields, ClassFields, []);
 	[_|_]=Missing ->
-	    asn1_error(S, T, {missing_mandatory_fields,Missing,Obj})
+	    asn1_error(S, {missing_mandatory_fields,Missing,Obj})
     end.
 
 check_defaultfields_1(_S, [], _ClassFields, Acc) ->
     {object,defaultsyntax,lists:reverse(Acc)};
 check_defaultfields_1(S, [{FName,Spec}|Fields], ClassFields, Acc) ->
     CField = lists:keyfind(FName, 2, ClassFields),
-    {NewField,RestFields} =
-	convert_to_defaultfield(S, FName, [Spec|Fields], CField),
-    check_defaultfields_1(S, RestFields, ClassFields, [NewField|Acc]).
+    {match,Match} = match_syntax_type(S, CField, Spec),
+    check_defaultfields_1(S, Fields, ClassFields, Match++Acc).
 
-convert_definedsyntax(_S,[],[],_ClassFields,Acc) ->
-    lists:reverse(Acc);
-convert_definedsyntax(S,Fields,WithSyntax,ClassFields,Acc) ->
-    {MatchedField,RestFields,RestWS} =
-	match_field(S,Fields,WithSyntax,ClassFields),
-    if
-	is_list(MatchedField) ->
-	    convert_definedsyntax(S,RestFields,RestWS,ClassFields,
-				  lists:append(MatchedField,Acc));
-	true ->
-	    convert_definedsyntax(S,RestFields,RestWS,ClassFields,
-				  [MatchedField|Acc])
-    end.
+get_mandatory_class_fields(ClassFields) ->
+    [element(2, F) || F <- ClassFields,
+		      is_mandatory_class_field(F)].
 
-get_mandatory_class_fields([{fixedtypevaluefield,Name,_,_,'MANDATORY'}|T]) ->
-    [Name|get_mandatory_class_fields(T)];
-get_mandatory_class_fields([{objectfield,Name,_,_,'MANDATORY'}|T]) ->
-    [Name|get_mandatory_class_fields(T)];
-get_mandatory_class_fields([{objectsetfield,Name,_,'MANDATORY'}|T]) ->
-    [Name|get_mandatory_class_fields(T)];
-get_mandatory_class_fields([{typefield,Name,'MANDATORY'}|T]) ->
-    [Name|get_mandatory_class_fields(T)];
-get_mandatory_class_fields([{variabletypevaluefield,Name,_,'MANDATORY'}|T]) ->
-    [Name|get_mandatory_class_fields(T)];
-get_mandatory_class_fields([{variabletypevaluesetfield,
-			     Name,_,'MANDATORY'}|T]) ->
-    [Name|get_mandatory_class_fields(T)];
-get_mandatory_class_fields([_|T]) ->
-    get_mandatory_class_fields(T);
-get_mandatory_class_fields([]) -> [].
-
-match_field(S,Fields,WithSyntax,ClassFields) ->
-    match_field(S,Fields,WithSyntax,ClassFields,[]).
-
-match_field(S,Fields,[W|Ws],ClassFields,Acc) when is_list(W) ->
-    case catch(match_optional_field(S,Fields,W,ClassFields,[])) of
-	{'EXIT',_} ->
-	    match_field(Fields,Ws,ClassFields,Acc); %% add S
-%%	{[Result],RestFields} ->
-%%	    {Result,RestFields,Ws};
-	{Result,RestFields} when is_list(Result) ->
-	    {Result,RestFields,Ws};
-	_ ->
-	    match_field(S,Fields,Ws,ClassFields,Acc)
-    end;
-match_field(S,Fields,WithSyntax,ClassFields,_Acc) ->
-    match_mandatory_field(S,Fields,WithSyntax,ClassFields,[]).
-
-match_optional_field(_S,RestFields,[],_,Ret) ->
-    {Ret,RestFields};
-%% An additional optional field within an optional field
-match_optional_field(S,Fields,[W|Ws],ClassFields,Ret) when is_list(W) ->
-    case catch match_optional_field(S,Fields,W,ClassFields,[]) of
-	{'EXIT',_} when length(Ws) > 0 ->
-	    match_optional_field(S,Fields,Ws,ClassFields,Ret);
-	{'EXIT',_} ->
-	    {Ret,Fields};
-	{asn1,{optional_matcherror,_,_}} when length(Ws) > 0 ->
-	    match_optional_field(S,Fields,Ws,ClassFields,Ret);
-	{asn1,{optional_matcherror,_,_}} ->
-	    {Ret,Fields};
-	{OptionalField,RestFields} ->
-	    match_optional_field(S,RestFields,Ws,ClassFields,
-				 lists:append(OptionalField,Ret))
-    end;
-%% identify and skip word
-match_optional_field(S,[{_,_,#'Externaltypereference'{type=WorS}}|Rest],
-		     [WorS|Ws],ClassFields,Ret) ->
-    match_optional_field(S,Rest,Ws,ClassFields,Ret);
-match_optional_field(S,[],_,ClassFields,Ret) ->
-    match_optional_field(S,[],[],ClassFields,Ret);
-%% identify and skip comma
-match_optional_field(S,[{WorS,_}|Rest],[{WorS,_}|Ws],ClassFields,Ret) ->
-    match_optional_field(S,Rest,Ws,ClassFields,Ret);
-%% am optional setting inside another optional setting may be "double-listed"
-match_optional_field(S,[Setting],DefinedSyntax,ClassFields,Ret) 
-  when is_list(Setting) ->
-    match_optional_field(S,Setting,DefinedSyntax,ClassFields,Ret);
-%% identify and save field data
-match_optional_field(S,[Setting|Rest],[{_,W}|Ws],ClassFields,Ret) ->
-    ?dbg("matching optional field setting: ~p with user friendly syntax: ~p~n",[Setting,W]),
-    WorS =
-	case Setting of
-	    Type when is_record(Type,type) -> Type;
-	    {'ValueFromObject',_,_} -> Setting;
-	    {object,_,_} -> Setting;
-	    {_,_,WordOrSetting} -> WordOrSetting;
-	    Other -> Other
-	end,
-    case lists:keysearch(W,2,ClassFields) of
-	false ->
-	    throw({asn1,{optional_matcherror,WorS,W}});
-	{value,CField} ->
-	    {NewField,RestFields} = 
-		convert_to_defaultfield(S,W,[WorS|Rest],CField),
-	    match_optional_field(S,RestFields,Ws,ClassFields,[NewField|Ret])
-    end;
-match_optional_field(_S,[WorS|_Rest],[W|_Ws],_ClassFields,_Ret) ->
-    throw({asn1,{optional_matcherror,WorS,W}}).
-
-match_mandatory_field(_S,[],[],_,[Acc]) ->
-    {Acc,[],[]};
-match_mandatory_field(_S,[],[],_,Acc) ->
-    {Acc,[],[]};
-match_mandatory_field(S,[],[H|T],CF,Acc) when is_list(H) ->
-    match_mandatory_field(S,[],T,CF,Acc);
-match_mandatory_field(_S,[],WithSyntax,_,_Acc) ->
-    throw({asn1,{mandatory_matcherror,[],WithSyntax}});
-%match_mandatory_field(_S,Fields,WithSyntax=[W|_Ws],_ClassFields,[Acc]) when is_list(W) ->
-match_mandatory_field(_S,Fields,WithSyntax=[W|_Ws],_ClassFields,Acc) when is_list(W), length(Acc) >= 1 ->
-    {Acc,Fields,WithSyntax};
-%% identify and skip word
-%%match_mandatory_field(S,[{_,_,WorS}|Rest],
-match_mandatory_field(S,[{_,_,#'Externaltypereference'{type=WorS}}|Rest],
-		      [WorS|Ws],ClassFields,Acc) ->
-    match_mandatory_field(S,Rest,Ws,ClassFields,Acc);
-%% identify and skip comma
-match_mandatory_field(S,[{WorS,_}|Rest],[{WorS,_}|Ws],ClassFields,Ret) ->
-    match_mandatory_field(S,Rest,Ws,ClassFields,Ret);
-%% identify and save field data
-match_mandatory_field(S,[Setting|Rest],[{_,W}|Ws],ClassFields,Acc) ->
-    ?dbg("matching field setting: ~p with user friendly syntax: ~p~n",[Setting,W]),
-    WorS = 
-	case Setting of
-	    {object,_,_} -> Setting;
-	    {_,_,WordOrSetting} -> WordOrSetting;
-	    Type when is_record(Type,type) -> Type;
-	    Other -> Other
-	end,
-    case lists:keysearch(W,2,ClassFields) of
-	false ->
-	    throw({asn1,{mandatory_matcherror,WorS,W}});
-	{value,CField} ->
-	    {NewField,RestFields} = 
-		convert_to_defaultfield(S,W,[WorS|Rest],CField),
-	    match_mandatory_field(S,RestFields,Ws,ClassFields,[NewField|Acc])
-    end;
- 	    
-match_mandatory_field(_S,[WorS|_Rest],[W|_Ws],_ClassFields,_Acc) ->
-    throw({asn1,{mandatory_matcherror,WorS,W}}).
-
-%% Converts a field of an object from defined syntax to default syntax
-%% A field may be a type, a fixed type value, an object, an objectset,
-%% 
-convert_to_defaultfield(S,ObjFieldName,[OFS|RestOFS],CField)->
-    ?dbg("convert field: ~p of type: ~p~n",[ObjFieldName,element(1,CField)]),
-    CurrMod = S#state.mname,
-    Strip_value_tag = 
-	fun({value_tag,ValueSetting}) -> ValueSetting;
-	   (VS) -> VS
-	end,
-    ObjFieldSetting = Strip_value_tag(OFS),
-    RestSettings = [Strip_value_tag(X)||X <- RestOFS],
-    case element(1,CField) of
-	typefield ->
-	    TypeDef=
-		case ObjFieldSetting of
-		    TypeRec when is_record(TypeRec,type) -> TypeRec#type.def;
-		    TDef when is_record(TDef,typedef) -> 
-			TDef#typedef{checked=true,
-				     typespec=check_type(S,TDef,
-							 TDef#typedef.typespec)};
-		    _ -> ObjFieldSetting
-		end,
-	    {Type,SettingsLeft} = 
-		if
-		    is_record(TypeDef,typedef) -> {TypeDef,RestSettings};
-		    is_record(TypeDef,'ObjectClassFieldType') ->
-			T=check_type(S,#typedef{typespec=ObjFieldSetting},ObjFieldSetting),
-			{oCFT_def(S,T),RestSettings};
-%			#typedef{checked=true,name=Name,typespec=IT};
-		    is_tuple(TypeDef), element(1,TypeDef) == pt  ->
-			%% this is an inlined type. If constructed
-			%% type save in data base
-			T=check_type(S,#typedef{typespec=ObjFieldSetting},ObjFieldSetting),
-			#'Externaltypereference'{type=PtName} = 
-			    element(2,TypeDef),
-			NameList = [PtName,S#state.tname],
-			NewName = list_to_atom(asn1ct_gen:list2name(NameList)),
-			NewTDef=#typedef{checked=true,name=NewName,
-					 typespec=T},
-			asn1_db:dbput(S#state.mname,NewName,NewTDef),
-			%%asn1ct_gen:insert_once(parameterized_objects,{NewName,type,NewTDef}),
-			insert_once(S,parameterized_objects,
-				    {NewName,type,NewTDef}),
-			{NewTDef,RestSettings};
-		    is_tuple(TypeDef), element(1,TypeDef)=='SelectionType'  ->
-			T=check_type(S,#typedef{typespec=ObjFieldSetting},
-				     ObjFieldSetting),
-			Name = type_name(S,T),
-			{#typedef{checked=true,name=Name,typespec=T},RestSettings};
-		    true ->
-			case asn1ct_gen:type(asn1ct_gen:get_inner(TypeDef)) of
-			    ERef = #'Externaltypereference'{module=CurrMod} ->
-				{RefMod,T} = get_referenced_type(S,ERef),
-				check_and_save(S,ERef#'Externaltypereference'{module=RefMod},T,RestSettings);
-
-			    ERef = #'Externaltypereference'{} ->
-				{RefMod,T} = get_referenced_type(S,ERef),
-				check_and_save(S,ERef#'Externaltypereference'{module=RefMod},T,RestSettings);
-			    Bif when Bif=={primitive,bif};Bif=={constructed,bif} ->
-				T = check_type(S,#typedef{typespec=ObjFieldSetting},
-					       ObjFieldSetting),
-				{#typedef{checked=true,name=Bif,typespec=T},RestSettings};
-			    _ ->
-				%this case should not happen any more
-				{Mod,T} = 
-				    get_referenced_type(S,#'Externaltypereference'{module=S#state.mname,type=ObjFieldSetting}),
-				case Mod of
-				    CurrMod ->
-					{T,RestSettings};
-				    ExtMod ->
-					#typedef{name=Name} = T,
-					{T#typedef{name={ExtMod,Name}},RestSettings}
-				end
-			end
-		end,
-	    {{ObjFieldName,Type},SettingsLeft};
-	fixedtypevaluefield ->
-	    case ObjFieldName of
-		Val when is_atom(Val) ->
-		    %% ObjFieldSetting can be a value,an objectidentifiervalue,
-		    %% an element in an enumeration or namednumberlist etc.
-		    ValRef =
-			case ObjFieldSetting of
-			    ValSetting=#'Externalvaluereference'{} ->
-				ValSetting;
-			    {'ValueFromObject',{_,ObjRef},FieldName} ->
-				{_,Object} = get_referenced_type(S,ObjRef),
-				ChObject = check_object(S,Object,
-							Object#typedef.typespec),
-				get_fieldname_element(S,Object#typedef{typespec=ChObject},
-						      FieldName);
-			    ValSetting = #valuedef{} ->
-				ValSetting;
-			    ValSetting ->
-				#valuedef{type=element(3,CField),
-					  value=ValSetting,
-					  module=S#state.mname}
-			end,
-		    ?dbg("fixedtypevaluefield ValRef: ~p~n",[ValRef]),
-		    case ValRef of
-			#valuedef{} ->
-			    {{ObjFieldName,check_value(S,ValRef)},RestSettings};
-			_ ->
-			    ValDef =
-				case catch get_referenced_type(S,ValRef) of
-				    {error,_} ->
-					NewValDef =
-					    #valuedef{name=Val,
-						      type=element(3,CField),
-						      value=ObjFieldSetting,
-						      module=S#state.mname},
-					check_value(S,NewValDef);
-				    {M,VDef} when is_record(VDef,valuedef) ->
-					check_value(update_state(S,M),
-						    %%S#state{mname=M},
-						    VDef);%% XXX
-				    {M,VDef} ->
-					check_value(update_state(S,M),
-						    %%S#state{mname=M},
-						    #valuedef{name=Val,
-							      type=element(3,CField),
-							      value=VDef,
-							      module=M})
-				end,
-			    {{ObjFieldName,ValDef},RestSettings}
-		    end;
-		Val ->
-		    {{ObjFieldName,Val},RestSettings}
-	    end;
-	fixedtypevaluesetfield ->
-	    {{ObjFieldName,ObjFieldSetting},RestSettings};
-	objectfield ->
-	    CheckObject = 
-		fun(O) ->
-			O#typedef{checked=true,typespec=
-				  check_object(S,O,O#typedef.typespec)}
-		end,
-	    ObjectSpec = 
-		case ObjFieldSetting of
-		    Ref when is_record(Ref,'Externalvaluereference') ->
-			%% The object O might be a #valuedef{} if
-			%% e.g. the definition looks like 
-			%% myobj SOMECLASS ::= referencedObject
-			{M,O} = get_referenced_type(S,Ref),
-			check_object(S,O,object_to_check(O)),
-			Ref#'Externalvaluereference'{module=M};
-
-		    {'ValueFromObject',{_,ObjRef},FieldName} ->
-			%% This is an ObjectFromObject
-			{_,Object} = get_referenced_type(S,ObjRef),
-			ChObject = check_object(S,Object,
-						Object#typedef.typespec),
-			ObjFromObj=
-			    get_fieldname_element(S,Object#typedef{
-						      typespec=ChObject},
-						  FieldName),
-			CheckObject(ObjFromObj);
-		    ObjDef={object,_,_} ->
-			%% An object defined inlined in another object
-			%% class is an objectfield, that implies that 
-			%% {objectsetfield,TypeFieldName,DefinedObjecClass,
-			%%  OptionalitySpec}
-			%% DefinedObjecClass = #'Externaltypereference'{}|
-			%% 'TYPE-IDENTIFIER' | 'ABSTRACT-SYNTAX'
-			ClassName = element(3,CField),
-			InlinedObjName=
-			    list_to_atom(lists:concat([S#state.tname]++
-						      ['_',ObjFieldName])),
-
-			ObjSpec = #'Object'{classname=ClassName,
-					    def=ObjDef},
-			CheckedObj=
-			    check_object(S,#typedef{typespec=ObjSpec},ObjSpec),
-			InlObj = #typedef{checked=true,name=InlinedObjName,
-					  typespec=CheckedObj},
-			ObjKey = {InlinedObjName,InlinedObjName},
-			%% asn1ct_gen:insert_once(inlined_objects,ObjKey),
-			insert_once(S,inlined_objects,ObjKey),
-			%% Which module to use here? Could it be other than top_module ?
-			%% asn1_db:dbput(S#state.mname,InlinedObjName,InlObj),
-			asn1_db:dbput(get(top_module),InlinedObjName,InlObj),
-			InlObj;
-		    #type{def=Eref} when is_record(Eref,'Externaltypereference') ->
-			{_,O} = get_referenced_type(S,Eref),
-			CheckObject(O);
-		    Other ->
-			{_,O} = get_referenced_type(S,#'Externaltypereference'{module=S#state.mname,type=Other}),
-			CheckObject(O)
-		end,
-	    {{ObjFieldName,ObjectSpec},RestSettings};
-	variabletypevaluefield ->
-	    {{ObjFieldName,ObjFieldSetting},RestSettings};
-	variabletypevaluesetfield ->
-	    {{ObjFieldName,ObjFieldSetting},RestSettings};
-%% 	objectset_or_fixedtypevalueset_field ->
-%% 	    ok;
-	objectsetfield ->
-	    ObjSetSpec = get_objectset_def(S,ObjFieldSetting,CField),
-	    ?dbg("objectsetfield, ObjSetSpec:~p~n",[ObjSetSpec]),
-	    {{ObjFieldName,
-	      ObjSetSpec#typedef{checked=true,
-				 typespec=check_object(S,ObjSetSpec,
-						       ObjSetSpec#typedef.typespec)}},RestSettings}
-    end.
-
-get_objectset_def(S,Ref,CField)
-  when is_record(Ref,'Externaltypereference');
-       is_record(Ref,'Externalvaluereference') ->
-    {_M,T}=get_referenced_type(S,Ref),
-    get_objectset_def2(S,T,CField);
-get_objectset_def(S,ObjectList,CField) when is_list(ObjectList) ->
-    %% an objctset defined in the object,though maybe
-    %% parsed as a SequenceOfValue 
-    %% The ObjectList may be a list of references to
-    %% objects, a ValueFromObject
-    ?dbg("objectsetfield: ~p~n",[CField]),
-    get_objectset_def2(S,ObjectList,CField);
-get_objectset_def(S,'EXTENSIONMARK',CField) ->
-    ?dbg("objectsetfield: ~p~n",[CField]),
-    get_objectset_def2(S,['EXTENSIONMARK'],CField);
-get_objectset_def(_S,ObjFieldSetting={'SingleValue',_},CField) ->
-    %% a Union of defined objects
-    ?dbg("objectsetfield, SingleValue~n",[]),
-    union_of_defed_objs(CField,ObjFieldSetting);
-get_objectset_def(_S,ObjFieldSetting={{'SingleValue',_},_},CField) ->
-    %% a Union of defined objects
-    ?dbg("objectsetfield, SingleValue~n",[]),
-    union_of_defed_objs(CField,ObjFieldSetting);
-get_objectset_def(S,{object,_,[#type{def={'TypeFromObject',
-					  {object,RefedObj},
-					  FieldName}}]},_CField) ->
-    %% This case occurs when an ObjectSetFromObjects 
-    %% production is used
-    {_M,Def} = get_referenced_type(S,RefedObj),
-    get_fieldname_element(S,Def,FieldName);
-get_objectset_def(S,{object,_,[{setting,_,ERef}]},CField)
-  when is_record(ERef,'Externaltypereference') ->
-    {_,T} = get_referenced_type(S,ERef),
-    get_objectset_def2(S,T,CField);
-get_objectset_def(S,#type{def=ERef},_CField) 
-  when is_record(ERef,'Externaltypereference') ->
-    {_,T} = get_referenced_type(S,ERef),
-    T;
-get_objectset_def(S,ObjFieldSetting,CField)
-  when is_atom(ObjFieldSetting) ->
-    ERef = #'Externaltypereference'{module=S#state.mname,
-				    type=ObjFieldSetting},
-    {_,T} = get_referenced_type(S,ERef),
-    get_objectset_def2(S,T,CField).
-
-get_objectset_def2(_S,T = #typedef{typespec=#'Object'{}},_CField) ->
-    #typedef{typespec=#'Object'{classname=Class,def=Def}} = T,
-    T#typedef{typespec=#'ObjectSet'{class=Class,set=[Def]}};
-get_objectset_def2(_S,Set,CField) when is_list(Set) ->
-    {_,_,Type,_} = CField,
-    ClassDef = Type#type.def,
-    #typedef{typespec=#'ObjectSet'{class=ClassDef,
-				   set=Set}};
-get_objectset_def2(_S,T = #typedef{typespec=#'ObjectSet'{}},_CField) ->
-    T;
-get_objectset_def2(S,T,_CField) ->
-    asn1ct:warning("get_objectset_def2: uncontrolled object set structure:~n~p~n",
-		   [T],S,"get_objectset_def2: uncontrolled object set structure").
-    
-type_name(S,#type{def=Def}) ->
-    CurrMod = S#state.mname,
-    case asn1ct_gen:type(asn1ct_gen:get_inner(Def)) of
-	#'Externaltypereference'{module=CurrMod,type=Name} ->
-	    Name;
-	#'Externaltypereference'{module=Mod,type=Name} ->
-	    {Mod,Name};
-	Bif when Bif=={primitive,bif};Bif=={constructed,bif} ->
-	    Bif
-    end.
+is_mandatory_class_field({fixedtypevaluefield,_,_,_,'MANDATORY'}) ->
+    true;
+is_mandatory_class_field({objectfield,_,_,_,'MANDATORY'}) ->
+    true;
+is_mandatory_class_field({objectsetfield,_,_,'MANDATORY'}) ->
+    true;
+is_mandatory_class_field({typefield,_,'MANDATORY'}) ->
+    true;
+is_mandatory_class_field({variabletypevaluefield,_,_,'MANDATORY'}) ->
+    true;
+is_mandatory_class_field({variabletypevaluesetfield,_,_,'MANDATORY'}) ->
+    true;
+is_mandatory_class_field(_) ->
+    false.
 
 merged_name(#state{inputmodules=[]},ERef) ->
     ERef;
@@ -2013,38 +1649,18 @@ merged_name(S,ERef=#'Externaltypereference'{module=M}) ->
 	    ERef
     end.
 
-oCFT_def(S,T) ->
-    case get_OCFT_inner(S,T) of
-	ERef=#'Externaltypereference'{} -> ERef;
-	{Name,Type} -> #typedef{checked=true,name=Name,typespec=Type};
-	'ASN1_OPEN_TYPE' -> 
-	    #typedef{checked=true,typespec=T#type{def='ASN1_OPEN_TYPE'}}
-    end.
-	    
-get_OCFT_inner(_S,T) ->
-%    Module=S#state.mname,
-    Def = T#type.def,
-    case Def#'ObjectClassFieldType'.type of
+ocft_def(#type{def=#'ObjectClassFieldType'{type=OCFT}}=T) ->
+    case OCFT of
 	{fixedtypevaluefield,_,InnerType} ->
 	    case asn1ct_gen:type(asn1ct_gen:get_inner(InnerType#type.def)) of
-		Bif when Bif=={primitive,bif};Bif=={constructed,bif} ->
-		    {Bif,InnerType};
-		ERef = #'Externaltypereference'{} ->
-		    ERef
+		Bif when Bif =:= {primitive,bif}; Bif =:= {constructed,bif} ->
+		    #typedef{checked=true,name=Bif,typespec=InnerType};
+		#'Externaltypereference'{}=Ref ->
+		    Ref
 	    end;
-	'ASN1_OPEN_TYPE' -> 'ASN1_OPEN_TYPE'
+	'ASN1_OPEN_TYPE' ->
+	    #typedef{checked=true,typespec=T#type{def='ASN1_OPEN_TYPE'}}
     end.
-	    
-	
-	
-union_of_defed_objs({_,_,_ObjClass=#type{def=ClassDef},_},ObjFieldSetting) -> 
-    #typedef{typespec=#'ObjectSet'{class = ClassDef,
-				   set = ObjFieldSetting}};
-union_of_defed_objs({_,_,DefObjClassRef,_},ObjFieldSetting)
-  when is_record(DefObjClassRef,'Externaltypereference') ->
-    #typedef{typespec=#'ObjectSet'{class = DefObjClassRef,
-				   set = ObjFieldSetting}}.
-    
 
 check_value(OldS,V) when is_record(V,pvaluesetdef) ->
     #pvaluesetdef{checked=Checked,type=Type} = V,
@@ -2068,8 +1684,7 @@ check_value(OldS,V) when is_record(V,typedef) ->
     #typedef{typespec=TS} = V,
     case TS of 
 	#'ObjectSet'{class=ClassRef} ->
-	    {RefM,TSDef} = get_referenced_type(OldS,ClassRef),
-	    %%IsObjectSet(TSDef);
+	    {_RefM,TSDef} = get_referenced_type(OldS, ClassRef),
 	    case TSDef of
 		#classdef{} -> throw({objectsetdef});
 		#typedef{typespec=#type{def=Eref}} when 
@@ -2077,14 +1692,12 @@ check_value(OldS,V) when is_record(V,typedef) ->
 		    %% This case if the class reference is a defined
 		    %% reference to class
 		    check_value(OldS,V#typedef{typespec=TS#'ObjectSet'{class=Eref}});
-		#typedef{} ->
+		#typedef{typespec=HostType} ->
 		    % an ordinary value set with a type in #typedef.typespec
-		    ValueSet = TS#'ObjectSet'.set,
-		    Type=check_type(OldS,TSDef,TSDef#typedef.typespec),
-		    Value = check_value(OldS,#valuedef{type=Type,
-						       value=ValueSet,
-						       module=RefM}),
-		    {valueset,Type#type{constraint=Value#valuedef.value}}
+		    ValueSet0 = TS#'ObjectSet'.set,
+		    Constr = check_constraints(OldS, HostType, [ValueSet0]),
+		    Type = check_type(OldS,TSDef,TSDef#typedef.typespec),
+		    {valueset,Type#type{constraint=Constr}}
 	    end;
 	_ ->
 	    throw({objectsetdef})
@@ -2104,11 +1717,11 @@ check_value(S, #valuedef{}=V) ->
     end.
 
 check_valuedef(#state{recordtopname=TopName}=S0, V0) ->
-    #valuedef{name=Name,type=Vtype,value=Value,module=ModName} = V0,
+    #valuedef{name=Name,type=Vtype0,value=Value,module=ModName} = V0,
     V = V0#valuedef{checked=true},
+    Vtype = check_type(S0, #typedef{name=Name,typespec=Vtype0},Vtype0),
     Def = Vtype#type.def,
-    Constr = Vtype#type.constraint,
-    S1 = S0#state{type=Vtype,tname=Def,value=V0,vname=Name},
+    S1 = S0#state{tname=Def},
     SVal = update_state(S1, ModName),
     case Def of
 	#'Externaltypereference'{type=RecName}=Ext ->
@@ -2116,9 +1729,8 @@ check_valuedef(#state{recordtopname=TopName}=S0, V0) ->
 	    %% If V isn't a value but an object Type is a #classdef{}
 	    S2 = update_state(S1, RefM),
 	    case Type of
-		#classdef{} ->
-		    throw({objectdef});
-		#typedef{typespec=TypeSpec} ->
+		#typedef{typespec=TypeSpec0}=TypeDef ->
+		    TypeSpec = check_type(S2, TypeDef, TypeSpec0),
 		    S3 = case is_contextswitchtype(Type) of
 			     true ->
 				 S2;
@@ -2135,7 +1747,7 @@ check_valuedef(#state{recordtopname=TopName}=S0, V0) ->
 				    V#valuedef{type=Type}),
 		    V#valuedef{value=CheckedVal}
 	    end;
-	'ANY' ->
+	'ASN1_OPEN_TYPE' ->
 	    {opentypefieldvalue,ANYType,ANYValue} = Value,
 	    CheckedV = check_value(SVal,#valuedef{name=Name,
 						  type=ANYType,
@@ -2143,19 +1755,12 @@ check_valuedef(#state{recordtopname=TopName}=S0, V0) ->
 						  module=ModName}),
 	    V#valuedef{value=CheckedV#valuedef.value};
 	'INTEGER' ->
-	    ok = validate_integer(SVal, Value, [], Constr),
 	    V#valuedef{value=normalize_value(SVal, Vtype, Value, [])};
-	{'INTEGER',NamedNumberList} ->
-	    ok = validate_integer(SVal, Value, NamedNumberList, Constr),
+	{'INTEGER',_NamedNumberList} ->
 	    V#valuedef{value=normalize_value(SVal, Vtype, Value, [])};
 	#'SEQUENCE'{} ->
-	    {ok,SeqVal} = convert_external(SVal, Value),
+	    {ok,SeqVal} = convert_external(SVal, Vtype, Value),
 	    V#valuedef{value=normalize_value(SVal, Vtype, SeqVal, TopName)};
-	{'SelectionType',SelName,SelT} ->
-	    CheckedT = check_selectiontype(SVal, SelName, SelT),
-	    NewV = V#valuedef{type=CheckedT},
-	    SelVDef = check_value(S1#state{value=NewV}, NewV),
-	    V#valuedef{value=SelVDef#valuedef.value};
 	_ ->
 	    V#valuedef{value=normalize_value(SVal, Vtype, Value, TopName)}
     end.
@@ -2169,179 +1774,97 @@ is_contextswitchtype(#typedef{name='CHARACTER STRING'}) ->
 is_contextswitchtype(_) ->
     false.
 
-% validate_integer(S,{identifier,Pos,Id},NamedNumberList,Constr) ->
-%     case lists:keysearch(Id,1,NamedNumberList) of
-% 	{value,_} -> ok;
-% 	false -> error({value,"unknown NamedNumber",S})
-%     end;
-%% This case occurs when there is a valuereference
-%% validate_integer(S=#state{mname=M},
-%% 		 #'Externalvaluereference'{module=M,value=Id}=Ref,
-validate_integer(S,#'Externalvaluereference'{value=Id}=Ref,
-		 NamedNumberList,Constr) ->
-    case lists:keysearch(Id,1,NamedNumberList) of
-	{value,_} -> ok;
-	false -> validate_integer_ref(S,Ref,NamedNumberList,Constr)
-	    %%error({value,"unknown NamedNumber",S})
-    end;
-validate_integer(S,Id,NamedNumberList,Constr) when is_atom(Id) ->
-    case lists:keysearch(Id,1,NamedNumberList) of
-	{value,_} -> ok;
-	false -> validate_integer_ref(S,Id,NamedNumberList,Constr)
-		     %error({value,"unknown NamedNumber",S})
+%%%
+%%% Start of OBJECT IDENTFIER/RELATIVE-OID validation.
+%%%
+
+validate_objectidentifier(S, OidType, #'Externalvaluereference'{}=Id) ->
+    %% Must be an OBJECT IDENTIFIER or RELATIVE-OID depending on OidType.
+    get_oid_value(S, OidType, false, Id);
+validate_objectidentifier(S, OidType, {'ValueFromObject',{object,Obj},Fields}) ->
+    %% Must be an OBJECT IDENTIFIER/RELATIVE-OID depending on OidType.
+    case extract_field(S, Obj, Fields) of
+	#valuedef{checked=true,value=Value,type=Type} when is_tuple(Value) ->
+	    _ = get_oid_type(S, OidType, Type),
+	    Value;
+	_ ->
+	    asn1_error(S, {illegal_oid,OidType})
     end;
-validate_integer(_S,Value,_NamedNumberList,Constr) when is_integer(Value) ->
-    check_integer_range(Value,Constr).
-
-validate_integer_ref(S,Id,_,_) when is_atom(Id) ->
-    error({value,"unknown integer referens",S});
-validate_integer_ref(S,Ref,NamedNumberList,Constr) ->
-    case get_referenced_type(S,Ref) of
-	{M,V} when is_record(V,valuedef) -> 
-	    NewS = update_state(S,M),
-	    case check_value(NewS,V) of
-		#valuedef{type=#type{def='INTEGER'},value=Value} ->
-		    validate_integer(NewS,Value,NamedNumberList,Constr);
-		_Err -> error({value,"unknown integer referens",S})
+validate_objectidentifier(S, OidType,
+			  [{#seqtag{module=Mod,pos=Pos,val=Atom},Val}]) ->
+    %% This case is when an OBJECT IDENTIFIER value has been parsed as a
+    %% SEQUENCE value.
+    Rec = #'Externalvaluereference'{pos=Pos,
+				    module=Mod,
+				    value=Atom},
+    validate_oid(S, OidType, [Rec,Val], []);
+validate_objectidentifier(S, OidType, [_|_]=L0) ->
+    validate_oid(S, OidType, L0, []);
+validate_objectidentifier(S, OidType, _) ->
+    asn1_error(S, {illegal_oid,OidType}).
+
+get_oid_value(S, OidType, AllowInteger, #'Externalvaluereference'{}=Id) ->
+    case get_referenced_type(S, Id) of
+	{_,#valuedef{checked=Checked,type=Type,value=V}} ->
+	    case get_oid_type(S, OidType, Type) of
+		'INTEGER' when not AllowInteger ->
+		    asn1_error(S, {illegal_oid,OidType});
+		_ when Checked ->
+		    V;
+		'INTEGER' ->
+		    V;
+		_ ->
+		    validate_objectidentifier(S, OidType, V)
 	    end;
 	_ ->
-	    error({value,"unknown integer referens",S})
+	    asn1_error(S, {illegal_oid,OidType})
     end.
-	    
-		
-
-check_integer_range(_Int, Constr) when is_list(Constr) ->
-    ok.
 
-%%------------
-%% This can be removed when the old parser is removed
-%% The function removes 'space' atoms from the list
-
-is_space_list([H],Acc) ->
-    lists:reverse([H|Acc]);
-is_space_list([H,space|T],Acc) ->
-    is_space_list(T,[H|Acc]);
-is_space_list([],Acc) ->
-    lists:reverse(Acc);
-is_space_list([H|T],Acc) ->
-    is_space_list(T,[H|Acc]).
-
-validate_objectidentifier(S,OID,ERef,C) 
-  when is_record(ERef,'Externalvaluereference') ->
-    validate_objectidentifier(S,OID,[ERef],C);
-validate_objectidentifier(S,OID,Tup,C) when is_tuple(Tup) ->
-    validate_objectidentifier(S,OID,tuple_to_list(Tup),C);
-validate_objectidentifier(S,OID,L,_) ->
-    NewL = is_space_list(L,[]),
-    case validate_objectidentifier1(S,OID,NewL) of
-	NewL2 when is_list(NewL2) ->{ok,list_to_tuple(NewL2)};
-	Other -> {ok,Other}
-    end.
-
-validate_objectidentifier1(S, OID, [Id|T])
-  when is_record(Id,'Externalvaluereference') ->
-    case catch get_referenced_type(S,Id) of
-	{M,V} when is_record(V,valuedef) -> 
-	    NewS = update_state(S,M),
-	    case check_value(NewS,V) of
-		#valuedef{type=#type{def=ERef},checked=true,
-			  value=Value} when is_tuple(Value) ->
-		    case is_object_id(OID,NewS,ERef) of 
-			true ->
-			    %% T must be a RELATIVE-OID
-			    validate_oid(true,NewS, rel_oid, T, lists:reverse(tuple_to_list(Value)));
-			_ ->
-			    error({value, {"illegal "++to_string(OID),[Id|T]}, S})
-		    end;
-		_ -> 
-		    error({value, {"illegal "++to_string(OID),[Id|T]}, S})
-	    end;
-	_ ->
-	    validate_oid(true,S, OID, [Id|T], [])
-    end;
-validate_objectidentifier1(S,OID,V) ->
-    validate_oid(true,S,OID,V,[]).
-
-validate_oid(false, S, OID, V, Acc) ->
-    error({value, {"illegal "++to_string(OID), V,Acc}, S});
-validate_oid(_,_, _, [], Acc) ->
-    lists:reverse(Acc);
-validate_oid(_, S, OID, [Value|Vrest], Acc) when is_integer(Value) ->
-    validate_oid(valid_objectid(OID,Value,Acc),S, OID, Vrest, [Value|Acc]);
-validate_oid(_, S, OID, [{'NamedNumber',_Name,Value}|Vrest], Acc) 
+validate_oid(S, OidType, [], Acc) ->
+    Oid = lists:reverse(Acc),
+    validate_oid_path(S, OidType, Oid),
+    list_to_tuple(Oid);
+validate_oid(S, OidType, [Value|Vrest], Acc) when is_integer(Value) ->
+    validate_oid(S, OidType, Vrest, [Value|Acc]);
+validate_oid(S, OidType, [{'NamedNumber',_Name,Value}|Vrest], Acc)
   when is_integer(Value) ->
-    validate_oid(valid_objectid(OID,Value,Acc), S, OID, Vrest, [Value|Acc]);
-validate_oid(_, S, OID, [Id|Vrest], Acc) 
-  when is_record(Id,'Externalvaluereference') ->
-    case catch get_referenced_type(S, Id) of
-	{M,V} when is_record(V,valuedef) ->
-	    NewS = update_state(S,M),
-	    NewVal = case check_value(NewS, V) of
-			 #valuedef{checked=true,value=Value} ->
-			     fun(Int) when is_integer(Int) ->  [Int];
-				(L) when is_list(L) -> L;
-				(T) when is_tuple(T) -> tuple_to_list(T)
-			     end (Value);
-			 _ ->
-			     error({value, {"illegal "++to_string(OID),
-					    [Id|Vrest],Acc}, S})
-		     end,
-	    case NewVal of
-		List when is_list(List) ->
-		    validate_oid(valid_objectid(OID,NewVal,Acc), NewS, 
-				 OID, Vrest,lists:reverse(NewVal)++Acc);
-		_ ->
-		    NewVal
-	    end;
-	_ ->
+    validate_oid(S, OidType, Vrest, [Value|Acc]);
+validate_oid(S, OidType, [#'Externalvaluereference'{}=Id|Vrest], Acc) ->
+    NeededOidType = case Acc of
+			[] -> o_id;
+			[_|_] -> rel_oid
+		    end,
+    try get_oid_value(S, NeededOidType, true, Id) of
+	Val when is_integer(Val) ->
+	    validate_oid(S, OidType, Vrest, [Val|Acc]);
+	Val when is_tuple(Val) ->
+	    L = tuple_to_list(Val),
+	    validate_oid(S, OidType, Vrest, lists:reverse(L, Acc))
+    catch
+	_:_ ->
 	    case reserved_objectid(Id#'Externalvaluereference'.value, Acc) of
 		Value when is_integer(Value) ->
-		    validate_oid(valid_objectid(OID,Value,Acc),
-				 S, OID,Vrest, [Value|Acc]);
+		    validate_oid(S, OidType,Vrest, [Value|Acc]);
 		false ->
-		    error({value, {"illegal "++to_string(OID),[Id,Vrest],Acc}, S})
+		    asn1_error(S, {illegal_oid,OidType})
 	    end
     end;
-validate_oid(_, S, OID, [{#seqtag{module=Mod,val=Atom},Value}], [])
-  when is_atom(Atom),is_integer(Value) ->
-    %% this case when an OBJECT IDENTIFIER value has been parsed as a 
-    %% SEQUENCE value
-    Rec = #'Externalvaluereference'{module=Mod,
-				    value=Atom},
-    validate_objectidentifier1(S, OID, [Rec,Value]);
-validate_oid(_, S, OID, [{#seqtag{module=Mod,val=Atom},EVRef}], [])
-  when is_atom(Atom),is_record(EVRef,'Externalvaluereference') ->
-    %% this case when an OBJECT IDENTIFIER value has been parsed as a 
-    %% SEQUENCE value OTP-4354
-    Rec = #'Externalvaluereference'{module=Mod,
-				    value=Atom},
-    validate_objectidentifier1(S, OID, [Rec,EVRef]);
-validate_oid(_, S, OID, [#seqtag{module=Mod,val=Atom}|Rest], Acc)
-  when is_atom(Atom) ->
-    Rec = #'Externalvaluereference'{module=Mod,
-				    value=Atom},
-    validate_oid(true,S, OID, [Rec|Rest],Acc);
-validate_oid(_, S, OID, V, Acc) ->
-    error({value, {"illegal "++to_string(OID),V,Acc},S}).
-
-is_object_id(OID,S,ERef=#'Externaltypereference'{}) ->
-    {_,OI} = get_referenced_type(S,ERef),
-    is_object_id(OID,S,OI#typedef.typespec);
-is_object_id(o_id,_S,'OBJECT IDENTIFIER') ->
-    true;
-is_object_id(rel_oid,_S,'RELATIVE-OID') ->
-    true;
-is_object_id(_,_S,'INTEGER') ->
-    true;
-is_object_id(OID,S,#type{def=Def}) ->
-    is_object_id(OID,S,Def);
-is_object_id(_,_S,_) ->
-    false.
-
-to_string(o_id) ->
-    "OBJECT IDENTIFIER";
-to_string(rel_oid) ->
-    "RELATIVE-OID".
+validate_oid(S, OidType, _V, _Acc) ->
+    asn1_error(S, {illegal_oid,OidType}).
+
+get_oid_type(S, OidType, #type{def=Def}) ->
+    get_oid_type(S, OidType, Def);
+get_oid_type(S, OidType, #'Externaltypereference'{}=Id) ->
+    {_,OI} = get_referenced_type(S, Id),
+    get_oid_type(S, OidType, OI#typedef.typespec);
+get_oid_type(_S, o_id, 'OBJECT IDENTIFIER'=T) ->
+    T;
+get_oid_type(_S, rel_oid, 'RELATIVE-OID'=T) ->
+    T;
+get_oid_type(_S, _, 'INTEGER'=T) ->
+    T;
+get_oid_type(S, OidType, _) ->
+    asn1_error(S, {illegal_oid,OidType}).
 
 %% ITU-T Rec. X.680 Annex B - D
 reserved_objectid('itu-t',[]) -> 0;
@@ -2380,7 +1903,6 @@ reserved_objectid('x',[0,0]) -> 24;
 reserved_objectid('y',[0,0]) -> 25;
 reserved_objectid('z',[0,0]) -> 26;
 
-
 reserved_objectid(iso,[]) -> 1;
 %% arcs below "iso", note that number 1 is not used
 reserved_objectid('standard',[1]) -> 0;
@@ -2392,25 +1914,22 @@ reserved_objectid('joint-iso-ccitt',[]) -> 2;
 
 reserved_objectid(_,_) -> false.
 
-valid_objectid(_OID,[],_Acc) ->
-    true;
-valid_objectid(OID,[H|T],Acc) ->
-    case valid_objectid(OID, H, Acc) of
-	true ->
-	    valid_objectid(OID,T,[H|Acc]);
-	_ ->
-	    false
-    end;
-valid_objectid(o_id,I,[]) when I =:= 0; I =:= 1; I =:= 2 -> true;
-valid_objectid(o_id,_I,[]) -> false;
-valid_objectid(o_id,I,[0]) when I >= 0; I =< 4 -> true;
-valid_objectid(o_id,_I,[0]) -> false;
-valid_objectid(o_id,I,[1]) when I =:= 0; I =:= 2; I =:= 3 -> true;
-valid_objectid(o_id,_I,[1]) -> false;
-valid_objectid(o_id,_I,[2]) -> true;
-valid_objectid(_,_,_) -> true.
-
-convert_external(S=#state{type=Vtype}, Value) ->
+validate_oid_path(_, rel_oid, _) ->
+    ok;
+validate_oid_path(_, o_id, [0,I|_]) when 0 =< I, I =< 9 ->
+    ok;
+validate_oid_path(_, o_id, [1,I|_]) when 0 =< I, I =< 3 ->
+    ok;
+validate_oid_path(_, o_id, [2|_]) ->
+    ok;
+validate_oid_path(S, o_id=OidType, _) ->
+    asn1_error(S, {illegal_oid,OidType}).
+
+%%%
+%%% End of OBJECT IDENTFIER/RELATIVE-OID validation.
+%%%
+
+convert_external(S, Vtype, Value) ->
     case Vtype of
 	#type{tag=[{tag,'UNIVERSAL',8,'IMPLICIT',32}]} ->
 	    %% this is an 'EXTERNAL' (or INSTANCE OF)
@@ -2435,7 +1954,7 @@ to_EXTERNAL1990(S, [{#seqtag{val=identification}=T,
     to_EXTERNAL1990(S, Rest, [{T#seqtag{val='indirect-reference'},PCid},
 			      {T#seqtag{val='direct-reference'},TrStx}]);
 to_EXTERNAL1990(S, _) ->
-    error({value,"illegal value in EXTERNAL type",S}).
+    asn1_error(S, illegal_external_value).
 
 to_EXTERNAL1990(S, [V={#seqtag{val='data-value-descriptor'},_}|Rest], Acc) ->
     to_EXTERNAL1990(S, Rest, [V|Acc]);
@@ -2443,7 +1962,7 @@ to_EXTERNAL1990(_S, [{#seqtag{val='data-value'}=T,Val}], Acc) ->
     Encoding = {T#seqtag{val=encoding},{'CHOICE',{'octet-aligned',Val}}},
     lists:reverse([Encoding|Acc]);
 to_EXTERNAL1990(S, _, _) ->
-    error({value,"illegal value in EXTERNAL type",S}).
+    asn1_error(S, illegal_external_value).
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %% Functions to normalize the default values of SEQUENCE 
@@ -2453,17 +1972,16 @@ normalize_value(_,_,mandatory,_) ->
     mandatory;
 normalize_value(_,_,'OPTIONAL',_) ->
     'OPTIONAL';
-normalize_value(S0, Type, {'DEFAULT',Value}, NameList) ->
-    S = S0#state{value=Value},
+normalize_value(S, Type, {'DEFAULT',Value}, NameList) ->
     case catch get_canonic_type(S,Type,NameList) of
 	{'BOOLEAN',CType,_} ->
 	    normalize_boolean(S,Value,CType);
 	{'INTEGER',CType,_} ->
-	    normalize_integer(S,Value,CType);
+	    normalize_integer(S, Value, CType);
 	{'BIT STRING',CType,_} ->
 	    normalize_bitstring(S,Value,CType);
-	{'OCTET STRING',CType,_} ->
-	    normalize_octetstring(S0, Value, CType);
+	{'OCTET STRING',_,_} ->
+	    normalize_octetstring(S, Value);
 	{'NULL',_CType,_} ->
 	    %%normalize_null(Value);
 	    'NULL';
@@ -2499,39 +2017,41 @@ normalize_value(S0, Type, {'DEFAULT',Value}, NameList) ->
 normalize_value(S,Type,Val,NameList) ->
     normalize_value(S,Type,{'DEFAULT',Val},NameList).
 
-normalize_boolean(S,{Name,Bool},CType) when is_atom(Name) ->
-    normalize_boolean(S,Bool,CType);
 normalize_boolean(_,true,_) ->
     true;
 normalize_boolean(_,false,_) ->
     false;
 normalize_boolean(S,Bool=#'Externalvaluereference'{},CType) ->
     get_normalized_value(S,Bool,CType,fun normalize_boolean/3,[]);
-normalize_boolean(_,Other,_) ->
-    throw({error,{asn1,{'invalid default value',Other}}}).
+normalize_boolean(S, _, _) ->
+    asn1_error(S, {illegal_value, "BOOLEAN"}).
 
-normalize_integer(_S,Int,_) when is_integer(Int) ->
+normalize_integer(_S, Int, _) when is_integer(Int) ->
     Int;
-normalize_integer(_S,{Name,Int},_) when is_atom(Name),is_integer(Int) ->
-    Int;
-normalize_integer(S,{Name,Int=#'Externalvaluereference'{}},
-		  Type) when is_atom(Name) ->
-    normalize_integer(S,Int,Type);
-normalize_integer(S,Int=#'Externalvaluereference'{value=Name},Type) ->
-    case Type of
-	NNL when is_list(NNL) ->
-	    case lists:keysearch(Name,1,NNL) of
-		{value,{Name,Val}} ->
+normalize_integer(S, #'Externalvaluereference'{value=Name}=Ref, NNL) ->
+    case lists:keyfind(Name, 1, NNL) of
+	{Name,Val} ->
+	    Val;
+	false ->
+	    try get_referenced_value(S, Ref) of
+		Val when is_integer(Val) ->
 		    Val;
-		false ->
-		    get_normalized_value(S,Int,Type,
-					 fun normalize_integer/3,[])
-	    end;
+		_ ->
+		    asn1_error(S, illegal_integer_value)
+	    catch
+		throw:_ ->
+		    asn1_error(S, illegal_integer_value)
+	    end
+    end;
+normalize_integer(S, {'ValueFromObject',{object,Obj},FieldNames}, _) ->
+    case extract_field(S, Obj, FieldNames) of
+	#valuedef{value=Val} when is_integer(Val) ->
+	    Val;
 	_ ->
-	    get_normalized_value(S,Int,Type,fun normalize_integer/3,[])
+	    asn1_error(S, illegal_integer_value)
     end;
-normalize_integer(_,Int,_) ->
-    exit({'Unknown INTEGER value',Int}).
+normalize_integer(S, _, _) ->
+    asn1_error(S, illegal_integer_value).
 
 %% normalize_bitstring(S, Value, Type) -> bitstring()
 %%  Convert a literal value for a BIT STRING to an Erlang bit string.
@@ -2543,36 +2063,34 @@ normalize_bitstring(S, Value, Type)->
 	{bstring,String} when is_list(String) ->
 	    bstring_to_bitstring(String);
 	#'Externalvaluereference'{} ->
-	    get_normalized_value(S, Value, Type,
-				 fun normalize_bitstring/3, []);
-	RecList when is_list(RecList) ->
-	    F = fun(#'Externalvaluereference'{value=Name}) ->
-			case lists:keymember(Name, 1, Type) of
-			    true -> Name;
-			    false -> throw({error,false})
-			end;
-		   (Name) when is_atom(Name) ->
-			%% Already normalized.
-			Name;
-		   (Other) ->
-			throw({error,Other})
-		end,
-	    try
-		lists:map(F, RecList)
-	    catch
-		throw:{error,Reason} ->
-		    asn1ct:warning("default value not "
-				   "compatible with type definition ~p~n",
-				   [Reason],S,
-				   "default value not "
-				   "compatible with type definition"),
-		    Value
+	    Val = get_referenced_value(S, Value),
+	    normalize_bitstring(S, Val, Type);
+	{'ValueFromObject',{object,Obj},FieldNames} ->
+	    case extract_field(S, Obj, FieldNames) of
+		#valuedef{value=Val} ->
+		    normalize_bitstring(S, Val, Type);
+		_ ->
+		    asn1_error(S, {illegal_value, "BIT STRING"})
 	    end;
+	RecList when is_list(RecList) ->
+	    [normalize_bs_item(S, Item, Type) || Item <- RecList];
 	Bs when is_bitstring(Bs) ->
 	    %% Already normalized.
-	    Bs
+	    Bs;
+	_ ->
+	    asn1_error(S, {illegal_value, "BIT STRING"})
     end.
 
+normalize_bs_item(S, #'Externalvaluereference'{value=Name}, Type) ->
+    case lists:keymember(Name, 1, Type) of
+	true -> Name;
+	false -> asn1_error(S, {illegal_value, "BIT STRING"})
+    end;
+normalize_bs_item(_, Atom, _) when is_atom(Atom) ->
+    Atom;
+normalize_bs_item(S, _, _) ->
+    asn1_error(S, {illegal_value, "BIT STRING"}).
+
 hstring_to_binary(L) ->
     byte_align(hstring_to_bitstring(L)).
 
@@ -2600,29 +2118,35 @@ hex_to_int(D) when $A =< D, D =< $F -> D - ($A - 10).
 %% {bstring,String} each element in String corresponds to one bit in an octet
 %% {hstring,String} each element in String corresponds to one byte in an octet
 %% #'Externalvaluereference'
-normalize_octetstring(S,Value,CType) ->
+normalize_octetstring(S, Value) ->
     case Value of
 	{bstring,String} ->
 	    bstring_to_binary(String);
 	{hstring,String} ->
 	    hstring_to_binary(String);
-	Rec when is_record(Rec,'Externalvaluereference') ->
-	    get_normalized_value(S,Value,CType,
-				 fun normalize_octetstring/3,[]);
-	{Name,String} when is_atom(Name) ->
-	    normalize_octetstring(S,String,CType);
+	#'Externalvaluereference'{} ->
+	    case get_referenced_value(S, Value) of
+		String when is_binary(String) ->
+		    String;
+		Other ->
+		    normalize_octetstring(S, Other)
+	    end;
+	{'ValueFromObject',{object,Obj},FieldNames} ->
+	    case extract_field(S, Obj, FieldNames) of
+		#valuedef{value=Val} when is_binary(Val) ->
+		    Val;
+		_ ->
+		    asn1_error(S, illegal_octet_string_value)
+	    end;
 	_ ->
-	    Item = S#state.value,
-	    asn1_error(S, Item, illegal_octet_string_value)
+	    asn1_error(S, illegal_octet_string_value)
     end.
 
 normalize_objectidentifier(S, Value) ->
-    {ok,Val} = validate_objectidentifier(S, o_id, Value, []),
-    Val.
+    validate_objectidentifier(S, o_id, Value).
 
-normalize_relative_oid(S,Value) ->
-    {ok,Val} = validate_objectidentifier(S, rel_oid, Value, []),
-    Val.
+normalize_relative_oid(S, Value) ->
+    validate_objectidentifier(S, rel_oid, Value).
 
 normalize_objectdescriptor(Value) ->
     Value.
@@ -2644,40 +2168,22 @@ lookup_enum_value(S, Id, NNL) when is_atom(Id) ->
 	{_,_}=Ret ->
 	    Ret;
 	false ->
-	    asn1_error(S, S#state.value, {undefined,Id})
+	    asn1_error(S, {undefined,Id})
     end.
 
-normalize_choice(S,{'CHOICE',{C,V}},CType,NameList) when is_atom(C) ->
-    case catch lists:keysearch(C,#'ComponentType'.name,CType) of
-	{value,#'ComponentType'{typespec=CT,name=Name}} ->
-	    {C,normalize_value(S,CT,{'DEFAULT',V},
-			       [Name|NameList])};
-	Other ->
-	    asn1ct:warning("Wrong format of type/value ~p/~p~n",[Other,V],S,
-			   "Wrong format of type/value"),
-	    {C,V}
+normalize_choice(S, {'CHOICE',{C,V}}, CType, NameList)
+  when is_atom(C) ->
+    case lists:keyfind(C, #'ComponentType'.name, CType) of
+	#'ComponentType'{typespec=CT,name=Name} ->
+	    {C,normalize_value(S, CT, {'DEFAULT',V}, [Name|NameList])};
+	false ->
+	    asn1_error(S, {illegal_id,C})
     end;
-normalize_choice(S,{'DEFAULT',ValueList},CType,NameList) when is_list(ValueList) ->
-    lists:map(fun(X)-> normalize_choice(S,X,CType,NameList) end, ValueList);
-normalize_choice(S,Val=#'Externalvaluereference'{},CType,NameList) ->
-    {M,#valuedef{value=V}}=get_referenced_type(S,Val),
-    normalize_choice(update_state(S,M),{'CHOICE',V},CType,NameList);
-%    get_normalized_value(S,Val,CType,fun normalize_choice/4,[NameList]);
-normalize_choice(S,CV={Name,_ChoiceVal},CType,NameList) 
+normalize_choice(S,CV={Name,_ChoiceVal},CType,NameList)
   when is_atom(Name) ->
-%    normalize_choice(S,ChoiceVal,CType,NameList).
     normalize_choice(S,{'CHOICE',CV},CType,NameList);
-normalize_choice(_S,V,_CType,_NameList) ->
-    exit({error,{bad_choice_value,V}}).
-
-%% normalize_choice(NameList,S,CVal = {'CHOICE',{_,_}},CType,_) ->
-%%     normalize_choice(S,CVal,CType,NameList);
-%% normalize_choice(NameList,S,CVal={'DEFAULT',VL},CType,_) when is_list(VL)->
-%%     normalize_choice(S,CVal,CType,NameList);
-%% normalize_choice(NameList,S,CV={Name,_CV},CType,_) when is_atom(Name)->
-%%     normalize_choice(S,{'CHOICE',CV},CType,NameList);
-%% normalize_choice(_,_S,V,_,_) ->
-%%     V.
+normalize_choice(S, V, _CType, _NameList) ->
+    asn1_error(S, {illegal_id, error_value(V)}).
 
 normalize_sequence(S,Value,Components,NameList) 
   when is_tuple(Components) ->
@@ -2732,12 +2238,9 @@ normalized_record(SorS,S,Value,Components,NameList) ->
 	    Value;
 	_ ->
 	    NoComps = length(Components),
-	    case normalize_seq_or_set(SorS,S,Value,Components,NameList,[]) of
-		ListOfVals when length(ListOfVals) == NoComps ->
-		    list_to_tuple([NewName|ListOfVals]);
-		_ ->
-		    error({type,{illegal,default,value,Value},S})
-	    end
+	    ListOfVals = normalize_seq_or_set(SorS,S,Value,Components,NameList,[]),
+	    NoComps = length(ListOfVals), %% Assert
+	    list_to_tuple([NewName|ListOfVals])
     end.
 is_record_normalized(S,Name,V = #'Externalvaluereference'{},NumComps) ->
     case get_referenced_type(S,V) of
@@ -2750,10 +2253,11 @@ is_record_normalized(_S,Name,Value,NumComps) when is_tuple(Value) ->
 is_record_normalized(_,_,_,_) ->
     false.
 
-normalize_seq_or_set(SorS, S, [{#seqtag{val=Cname},V}|Vs],
+normalize_seq_or_set(SorS, S,
+		     [{#seqtag{val=Cname},V}|Vs],
 		     [#'ComponentType'{name=Cname,typespec=TS}|Cs],
 		     NameList, Acc) ->
-    NewNameList = 
+    NewNameList =
 	case TS#type.def of
 	    #'Externaltypereference'{type=TName} ->
 		[TName];
@@ -2761,24 +2265,26 @@ normalize_seq_or_set(SorS, S, [{#seqtag{val=Cname},V}|Vs],
 	end,
     NVal = normalize_value(S,TS,{'DEFAULT',V},NewNameList),
     normalize_seq_or_set(SorS,S,Vs,Cs,NameList,[NVal|Acc]);
-normalize_seq_or_set(SorS,S,Values=[{_Cname1,_V}|_Vs],
+normalize_seq_or_set(SorS, S,
+		     Values=[{#seqtag{val=Cname0},_V}|_Vs],
 		     [#'ComponentType'{prop='OPTIONAL'}|Cs],
-		     NameList,Acc) ->
+		     NameList, Acc) ->
+    verify_valid_component(S, Cname0, Cs),
     normalize_seq_or_set(SorS,S,Values,Cs,NameList,[asn1_NOVALUE|Acc]);
-normalize_seq_or_set(SorS,S,Values=[{_Cname1,_V}|_Vs],
-		    [#'ComponentType'{name=Cname2,typespec=TS,
-				      prop={'DEFAULT',Value}}|Cs],
-		    NameList,Acc) ->
-    NewNameList = 
+normalize_seq_or_set(SorS, S,
+		     Values=[{#seqtag{val=Cname0},_V}|_Vs],
+		     [#'ComponentType'{name=Cname,typespec=TS,
+				       prop={'DEFAULT',Value}}|Cs],
+		    NameList, Acc) ->
+    verify_valid_component(S, Cname0, Cs),
+    NewNameList =
 	case TS#type.def of
 	    #'Externaltypereference'{type=TName} ->
 		[TName];
-	    _ -> [Cname2|NameList]
+	    _ -> [Cname|NameList]
 	end,
     NVal =  normalize_value(S,TS,{'DEFAULT',Value},NewNameList),
     normalize_seq_or_set(SorS,S,Values,Cs,NameList,[NVal|Acc]);
-normalize_seq_or_set(_SorS,_S,[],[],_,Acc) ->
-    lists:reverse(Acc);
 %% If default value is {} ComponentTypes in SEQUENCE are marked DEFAULT 
 %% or OPTIONAL (or the type is defined SEQUENCE{}, which is handled by
 %% the previous case).
@@ -2801,9 +2307,23 @@ normalize_seq_or_set(SorS,S,Value=#'Externalvaluereference'{},
 		     Cs,NameList,Acc) ->
     get_normalized_value(S,Value,Cs,fun normalize_seq_or_set/6,
 			 [SorS,NameList,Acc]);
-normalize_seq_or_set(_SorS,S,V,_,_,_) ->
-    error({type,{illegal,default,value,V},S}).
-	
+normalize_seq_or_set(_SorS, _S, [], [], _, Acc) ->
+    lists:reverse(Acc);
+normalize_seq_or_set(_SorS, S, V, Cs, _, _) ->
+    case V of
+	[{#seqtag{val=Name},_}|_] ->
+	    asn1_error(S, {illegal_id,error_value(Name)});
+	[] ->
+	    [#'ComponentType'{name=Name}|_] = Cs,
+	    asn1_error(S, {missing_id,error_value(Name)})
+    end.
+
+verify_valid_component(S, Name, Cs) ->
+    case lists:keyfind(Name, #'ComponentType'.name, Cs) of
+	false -> asn1_error(S, {illegal_id,error_value(Name)});
+	#'ComponentType'{} -> ok
+    end.
+
 normalize_seqof(S,Value,Type,NameList) ->
     normalize_s_of('SEQUENCE OF',S,Value,Type,NameList).
 
@@ -2859,10 +2379,7 @@ normalize_restrictedstring(_S,CString,_) when is_list(CString) ->
 %% definedvalue case or argument in a parameterized type
 normalize_restrictedstring(S,ERef,CType) when is_record(ERef,'Externalvaluereference') ->
     get_normalized_value(S,ERef,CType,
-			 fun normalize_restrictedstring/3,[]);
-%% 
-normalize_restrictedstring(S,{Name,Val},CType) when is_atom(Name) ->
-    normalize_restrictedstring(S,Val,CType).
+			 fun normalize_restrictedstring/3,[]).
 
 normalize_objectclassfieldvalue(S,{opentypefieldvalue,Type,Value},NameList) ->
     %% An open type has per definition no type. Thus should the type
@@ -2910,6 +2427,8 @@ call_Func(S,Val,Type,Func,ArgList) ->
 get_canonic_type(S,Type,NameList) ->
     {InnerType,NewType,NewNameList} =
 	case Type#type.def of
+	    'INTEGER'=Name ->
+		{Name,[],NameList};
 	    Name when is_atom(Name) ->
 		{Name,Type,NameList};
 	    Ref when is_record(Ref,'Externaltypereference') ->
@@ -2964,8 +2483,8 @@ check_formal_parameter(_, {_,_}) ->
     ok;
 check_formal_parameter(_, #'Externaltypereference'{}) ->
     ok;
-check_formal_parameter(S, #'Externalvaluereference'{value=Name}=Ref) ->
-    asn1_error(S, Ref, {illegal_typereference,Name}).
+check_formal_parameter(S, #'Externalvaluereference'{value=Name}) ->
+    asn1_error(S, {illegal_typereference,Name}).
 
 % check_type(S,Type,ObjSpec={{objectclassname,_},_}) ->
  %     check_class(S,ObjSpec);
@@ -2977,7 +2496,7 @@ check_type(_S,Type,Ts) when is_record(Type,typedef),
     Ts;
 check_type(S=#state{recordtopname=TopName},Type,Ts) when is_record(Ts,type) ->
     {Def,Tag,Constr,IsInlined} = 
-	case match_parameters(S,Ts#type.def,S#state.parameters) of
+	case match_parameter(S, Ts#type.def) of
 	    #type{tag=PTag,constraint=_Ctmp,def=Dtmp,inlined=Inl} ->
 		{Dtmp,merge_tags(Ts#type.tag,PTag),Ts#type.constraint,Inl};
 	    #typedef{typespec=#type{tag=PTag,def=Dtmp,inlined=Inl}} ->
@@ -2989,16 +2508,16 @@ check_type(S=#state{recordtopname=TopName},Type,Ts) when is_record(Ts,type) ->
 		       inlined=IsInlined},
     TestFun = 
 	fun(Tref) ->
-		MaybeChoice = get_non_typedef(S, Tref),
+		{_, MaybeChoice} = get_referenced_type(S, Tref, true),
 		case catch((MaybeChoice#typedef.typespec)#type.def) of
 		    {'CHOICE',_} ->
-			maybe_illicit_implicit_tag(choice,Tag);
+			maybe_illicit_implicit_tag(S, choice, Tag);
 		    'ANY' ->
-			maybe_illicit_implicit_tag(open_type,Tag);
+			maybe_illicit_implicit_tag(S, open_type, Tag);
 		    'ANY DEFINED BY' ->
-			maybe_illicit_implicit_tag(open_type,Tag);
+			maybe_illicit_implicit_tag(S, open_type, Tag);
 		    'ASN1_OPEN_TYPE' ->
-			maybe_illicit_implicit_tag(open_type,Tag);
+			maybe_illicit_implicit_tag(S, open_type, Tag);
 		    _ ->
 			Tag
 		end
@@ -3007,7 +2526,7 @@ check_type(S=#state{recordtopname=TopName},Type,Ts) when is_record(Ts,type) ->
 	case Def of 
 	    Ext when is_record(Ext,'Externaltypereference') ->
 		{RefMod,RefTypeDef,IsParamDef} = 
-		    case get_referenced_type(S,Ext) of
+		    case get_referenced_type(S, Ext) of
 			{undefined,TmpTDef} -> %% A parameter
 			    {get(top_module),TmpTDef,true};
 			{TmpRefMod,TmpRefDef} ->
@@ -3031,7 +2550,6 @@ check_type(S=#state{recordtopname=TopName},Type,Ts) when is_record(Ts,type) ->
 			    NewS = S#state{mname=RefMod,
 					   module=load_asn1_module(S,RefMod),
 					   tname=get_datastr_name(NewRefTypeDef1),
-					   type=NewRefTypeDef1,
 					   abscomppath=[],recordtopname=[]},
 			    RefType1 = 
 				check_type(NewS,RefTypeDef,RefTypeDef#typedef.typespec),
@@ -3051,18 +2569,17 @@ check_type(S=#state{recordtopname=TopName},Type,Ts) when is_record(Ts,type) ->
 							   Key);
 				_ -> ok
 			    end,
+			    Pos = Ext#'Externaltypereference'.pos,
 			    {RefType1,#'Externaltypereference'{module=RefMod,
+							       pos=Pos,
 							       type=TmpName}}
 		    end,
 
 		case asn1ct_gen:prim_bif(asn1ct_gen:get_inner(RefType#type.def)) of
 		    true ->
 			%% Here we expand to a built in type and inline it
-			NewS2 = S#state{type=#typedef{typespec=RefType}},
-			NewC = 
-			    constraint_merge(NewS2,
-					     check_constraints(NewS2,Constr)++
-					     RefType#type.constraint),
+			NewC = check_constraints(S, RefType, Constr ++
+						     RefType#type.constraint),
 			TempNewDef#newt{
 			  type = RefType#type.def, 
 			  tag = merge_tags(Ct,RefType#type.tag),
@@ -3073,19 +2590,13 @@ check_type(S=#state{recordtopname=TopName},Type,Ts) when is_record(Ts,type) ->
 			NewExt = ExtRef#'Externaltypereference'{module=merged_mod(S,RefMod,Ext)},
 			TempNewDef#newt{
 			  type = check_externaltypereference(S,NewExt),
-			  tag = case S#state.erule of
-				    ber ->
-					merge_tags(Ct,RefType#type.tag);
-				    _ ->
-					Ct
-				end
-			 }
+			  tag = merge_tags(Ct,RefType#type.tag)}
 		end;
 	    'ANY' ->
-		Ct=maybe_illicit_implicit_tag(open_type,Tag),
+		Ct = maybe_illicit_implicit_tag(S, open_type, Tag),
 		TempNewDef#newt{type='ASN1_OPEN_TYPE',tag=Ct};
 	    {'ANY_DEFINED_BY',_} ->
-		Ct=maybe_illicit_implicit_tag(open_type,Tag),
+		Ct = maybe_illicit_implicit_tag(S, open_type, Tag),
 		TempNewDef#newt{type='ASN1_OPEN_TYPE',tag=Ct};
 	    'INTEGER' ->
 		TempNewDef#newt{tag=
@@ -3132,7 +2643,7 @@ check_type(S=#state{recordtopname=TopName},Type,Ts) when is_record(Ts,type) ->
 	    {'ENUMERATED',NamedNumberList} ->
 		TempNewDef#newt{type=
 				{'ENUMERATED',
-				 check_enumerated(S,NamedNumberList,Constr)},
+				 check_enumerated(S, NamedNumberList)},
 				tag=
 				merge_tags(Tag,?TAG_PRIMITIVE(?N_ENUMERATED)),
 				constraint=[]};
@@ -3235,7 +2746,7 @@ check_type(S=#state{recordtopname=TopName},Type,Ts) when is_record(Ts,type) ->
 				tag=
 				merge_tags(Tag,?TAG_CONSTRUCTED(?N_SEQUENCE))};
 	    {'CHOICE',Components} ->
-		Ct = maybe_illicit_implicit_tag(choice,Tag),
+		Ct = maybe_illicit_implicit_tag(S, choice, Tag),
 		TempNewDef#newt{type={'CHOICE',check_choice(S,Type,Components)},tag=Ct};
 	    Set when is_record(Set,'SET') ->
 		RecordName=
@@ -3258,12 +2769,6 @@ check_type(S=#state{recordtopname=TopName},Type,Ts) when is_record(Ts,type) ->
 		TempNewDef#newt{type={'SET OF',check_setof(S,Type,Components)},
 				tag=
 				merge_tags(Tag,?TAG_CONSTRUCTED(?N_SET))};
-	    %% This is a temporary hack until the full Information Obj Spec
-	    %% in X.681 is supported
-	    {#'Externaltypereference'{type='TYPE-IDENTIFIER'},
-	     [{typefieldreference,_,'Type'}]} ->
-		Ct=maybe_illicit_implicit_tag(open_type,Tag),
-		TempNewDef#newt{type='ASN1_OPEN_TYPE',tag=Ct};
 
 	    {pt,Ptype,ParaList} ->
 		%% Ptype might be a parameterized - type, object set or
@@ -3271,18 +2776,18 @@ check_type(S=#state{recordtopname=TopName},Type,Ts) when is_record(Ts,type) ->
 		%% calling function.
 		{_RefMod,Ptypedef} = get_referenced_type(S,Ptype),
 		notify_if_not_ptype(S,Ptypedef),
-		NewParaList = 
-		    [match_parameters(S,TmpParam,S#state.parameters)|| 
-				  TmpParam <- ParaList],
+		NewParaList = match_parameters(S, ParaList),
 		Instance = instantiate_ptype(S,Ptypedef,NewParaList),
 		TempNewDef#newt{type=Instance#type.def,
 				tag=merge_tags(Tag,Instance#type.tag),
 				constraint=Instance#type.constraint,
 				inlined=yes};
 
-	    OCFT=#'ObjectClassFieldType'{classname=ClRef} ->
+	    #'ObjectClassFieldType'{classname=ClRef0}=OCFT0 ->
 		%% this case occures in a SEQUENCE when 
 		%% the type of the component is a ObjectClassFieldType
+		ClRef = match_parameter(S, ClRef0),
+		OCFT = OCFT0#'ObjectClassFieldType'{classname=ClRef},
 		ClassSpec = check_class(S,ClRef),
 		NewTypeDef = 
 		    maybe_open_type(S,ClassSpec,
@@ -3292,16 +2797,18 @@ check_type(S=#state{recordtopname=TopName},Type,Ts) when is_record(Ts,type) ->
 		Ct =
 		    case is_open_type(NewTypeDef) of
 			true ->
-			    maybe_illicit_implicit_tag(open_type,MergedTag);
+			    maybe_illicit_implicit_tag(S, open_type, MergedTag);
 			_ ->
 			    MergedTag
 		    end,
 		case TopName of
 		    [] when Type#typedef.name =/= undefined ->
 			%% This is a top-level type.
-			#type{def=Simplified} =
-			    simplify_type(#type{def=NewTypeDef}),
-			TempNewDef#newt{type=Simplified,tag=Ct};
+			#type{constraint=C,def=Simplified} =
+			    simplify_type(#type{def=NewTypeDef,
+						constraint=Constr}),
+			TempNewDef#newt{type=Simplified,tag=Ct,
+					constraint=C};
 		    _ ->
 			TempNewDef#newt{type=NewTypeDef,tag=Ct}
 		end;
@@ -3311,33 +2818,21 @@ check_type(S=#state{recordtopname=TopName},Type,Ts) when is_record(Ts,type) ->
 		TempNewDef#newt{tag=merge_tags(Tag,CheckedT#type.tag),
 				type=CheckedT#type.def};
 
-	    {valueset,Vtype} ->
-		TempNewDef#newt{type={valueset,check_type(S,Type,Vtype)}};
 	    {'SelectionType',Name,T} ->
 		CheckedT = check_selectiontype(S,Name,T),
 		TempNewDef#newt{tag=merge_tags(Tag,CheckedT#type.tag),
 				type=CheckedT#type.def};
-	    Other ->
-		exit({'cant check' ,Other})
+	    'ASN1_OPEN_TYPE' ->
+		TempNewDef
 	end,
     #newt{type=TDef,tag=NewTags,constraint=NewConstr,inlined=Inlined} = NewDef,
     Ts#type{def=TDef,
 	    inlined=Inlined,
-	    constraint=check_constraints(S, NewConstr),
+	    constraint=check_constraints(S, #type{def=TDef}, NewConstr),
 	    tag=lists:map(fun(#tag{type={default,TTx}}=TempTag) ->
 				  TempTag#tag{type=TTx};
 			     (Other) -> Other
-			  end, NewTags)};
-check_type(_S,Type,Ts) ->
-    exit({error,{asn1,internal_error,Type,Ts}}).
-
-get_non_typedef(S, Tref0) ->
-    case get_referenced_type(S, Tref0) of
-	{_,#typedef{typespec=#type{def=#'Externaltypereference'{}=Tref}}} ->
-	    get_non_typedef(S, Tref);
-	{_,Type} ->
-	    Type
-    end.
+			  end, NewTags)}.
 
 
 %%
@@ -3353,10 +2848,11 @@ simplify_comp(#'ComponentType'{typespec=Type0}=C) ->
     C#'ComponentType'{typespec=Type};
 simplify_comp(Other) -> Other.
 
-simplify_type(#type{tag=Tag,def=Inner}=T) ->
+simplify_type(#type{tag=Tag,def=Inner,constraint=Constr0}=T) ->
     case Inner of
-	#'ObjectClassFieldType'{type={fixedtypevaluefield,_,Type}} ->
-	    Type#type{tag=Tag};
+	#'ObjectClassFieldType'{type={fixedtypevaluefield,_,Type}}=OCFT ->
+	    Constr = [{ocft,OCFT}|Type#type.constraint++Constr0],
+	    Type#type{tag=Tag,constraint=Constr};
 	_ ->
 	    T
     end.
@@ -3389,29 +2885,22 @@ get_innertag(_S,#'ObjectClassFieldType'{type=Type}) ->
 	_ -> []
     end.
     
-get_type_from_object(S,Object,TypeField)
-  when is_record(Object,'Externaltypereference');
-       is_record(Object,'Externalvaluereference') ->
-    {_,ObjectDef} = get_referenced_type(S,Object),
-    ObjSpec = check_object(S,ObjectDef,ObjectDef#typedef.typespec),
-    get_fieldname_element(S,ObjectDef#typedef{typespec=ObjSpec},TypeField).
-    
 %% get_class_def(S, Type) -> #classdef{} | 'none'.
 get_class_def(S, #typedef{typespec=#type{def=#'Externaltypereference'{}=Eref}}) ->
-    {_,NextDef} = get_referenced_type(S, Eref),
+    {_,NextDef} = get_referenced_type(S, Eref, true),
     get_class_def(S, NextDef);
 get_class_def(S, #'Externaltypereference'{}=Eref) ->
-    {_,NextDef} = get_referenced_type(S, Eref),
+    {_,NextDef} = get_referenced_type(S, Eref, true),
     get_class_def(S, NextDef);
 get_class_def(_S, #classdef{}=CD) ->
     CD;
 get_class_def(_S, _) ->
     none.
     
-maybe_illicit_implicit_tag(Kind,Tag) ->
+maybe_illicit_implicit_tag(S, Kind, Tag) ->
     case Tag of
 	[#tag{type='IMPLICIT'}|_T] ->
-	    throw({error,{asn1,{implicit_tag_before,Kind}}});
+	    asn1_error(S, {implicit_tag_before,Kind});
 	[ChTag = #tag{type={default,_}}|T] -> 
 	    case Kind of
 		open_type ->
@@ -3438,19 +2927,24 @@ merged_mod(S,RefMod,Ext) ->
 %% any UNIQUE field, so that a component relation constraint cannot specify
 %% the type of a typefield, return 'ASN1_OPEN_TYPE'.
 %% 
-maybe_open_type(S,ClassSpec=#objectclass{fields=Fs},
-		OCFT=#'ObjectClassFieldType'{fieldname=FieldRefList},
+maybe_open_type(_, _, #'ObjectClassFieldType'{fieldname={_,_}}=OCFT, _) ->
+    %% Already converted.
+    OCFT;
+maybe_open_type(S, #objectclass{fields=Fs}=ClassSpec,
+		#'ObjectClassFieldType'{fieldname=FieldRefList}=OCFT,
 		Constr) ->
-    Type = get_ObjectClassFieldType(S,Fs,FieldRefList),
-    FieldNames=get_referenced_fieldname(FieldRefList),
-    case last_fieldname(FieldRefList) of
+    Type = get_OCFType(S, Fs, FieldRefList),
+    FieldNames = get_referenced_fieldname(FieldRefList),
+    case lists:last(FieldRefList) of
 	{valuefieldreference,_} ->
 	    OCFT#'ObjectClassFieldType'{fieldname=FieldNames,
 					type=Type};
 	{typefieldreference,_} ->
-	    case {catch get_unique_fieldname(S,#classdef{typespec=ClassSpec}),
-		  asn1ct_gen:get_constraint(Constr,componentrelation)}of
-		{Tuple,_} when tuple_size(Tuple) =:= 3 ->
+	    %% Note: The constraints have not been checked yet,
+	    %% so we must use a special lookup routine.
+	    case {get_unique_fieldname(S, #classdef{typespec=ClassSpec}),
+		  get_componentrelation(Constr)} of
+		{no_unique,_} ->
 		    OCFT#'ObjectClassFieldType'{fieldname=FieldNames,
 						type='ASN1_OPEN_TYPE'};
 		{_,no} ->
@@ -3462,16 +2956,12 @@ maybe_open_type(S,ClassSpec=#objectclass{fields=Fs},
 	    end
     end.
 
-last_fieldname(FieldRefList) when is_list(FieldRefList) ->
-    lists:last(FieldRefList);
-last_fieldname({FieldName,_}) when is_atom(FieldName) ->
-    [A|_] = atom_to_list(FieldName),
-    case is_lowercase(A) of
-	true ->
-	    {valuefieldreference,FieldName};
-	_ ->
-	    {typefieldreference,FieldName}
-    end.
+get_componentrelation([{element_set,{componentrelation,_,_}=Cr,none}|_]) ->
+    Cr;
+get_componentrelation([_|T]) ->
+    get_componentrelation(T);
+get_componentrelation([]) ->
+    no.
 
 is_open_type(#'ObjectClassFieldType'{type='ASN1_OPEN_TYPE'}) ->
     true;
@@ -3510,35 +3000,19 @@ notify_if_not_ptype(S,#pobjectsetdef{class=Cl}) ->
 	_ ->
 	    throw(pobjectsetdef)
     end;
-notify_if_not_ptype(_S,PT) ->
-    throw({error,{"supposed to be a parameterized type",PT}}).
-% fix me
+notify_if_not_ptype(S, PT) ->
+    asn1_error(S, {param_bad_type, error_value(PT)}).
+
 instantiate_ptype(S,Ptypedef,ParaList) ->
     #ptypedef{args=Args,typespec=Type} = Ptypedef,
     NewType = check_ptype(S,Ptypedef,Type#type{inlined=yes}),    
     MatchedArgs = match_args(S,Args, ParaList, []),
     OldArgs = S#state.parameters,
-    NewS = S#state{type=NewType,parameters=MatchedArgs++OldArgs,abscomppath=[]},
-%%    NewS = S#state{type=NewType,parameters=MatchedArgs,abscomppath=[]},
+    NewS = S#state{parameters=MatchedArgs++OldArgs,abscomppath=[]},
     check_type(NewS, Ptypedef#ptypedef{typespec=NewType}, NewType).
 
-get_datastr_name(#typedef{name=N}) ->
-    N;
-get_datastr_name(#classdef{name=N}) ->
-    N;
-get_datastr_name(#valuedef{name=N}) ->
-    N;
-get_datastr_name(#ptypedef{name=N}) ->
-    N;
-get_datastr_name(#pvaluedef{name=N}) ->
-    N;
-get_datastr_name(#pvaluesetdef{name=N}) ->
-    N;
-get_datastr_name(#pobjectdef{name=N}) ->
-    N;
-get_datastr_name(#pobjectsetdef{name=N}) ->
-    N.
-
+get_datastr_name(Type) ->
+    asn1ct:get_name_of_def(Type).
 
 get_pt_args(#ptypedef{args=Args}) ->
     Args;
@@ -3606,8 +3080,8 @@ match_args(S,FA = [FormArg|Ft], AA = [ActArg|At], Acc) ->
     end;
 match_args(_S,[], [], Acc) ->
     lists:reverse(Acc);
-match_args(_,_, _, _) ->
-    throw({error,{asn1,{wrong_number_of_arguments}}}).
+match_args(S, _, _, _) ->
+    asn1_error(S, param_wrong_number_of_arguments).
 
 %%%%%%%%%%%%%%%%%
 %% categorize_arg(S,FormalArg,ActualArg) -> {FormalArg,CatgorizedActualArg}
@@ -3652,11 +3126,6 @@ parameter_name_style(#'Externaltypereference'{}) ->
 parameter_name_style(#'Externalvaluereference'{}) ->
     beginning_lowercase.
 
-is_lowercase(X) when X >= $A,X =< $W ->
-    false;
-is_lowercase(_) ->
-    true.
-		
 %% categorize(Parameter) -> CategorizedParameter
 %% If Parameter has an abstract syntax of another category than
 %% Category, transform it to a known syntax.
@@ -3705,725 +3174,503 @@ parse_objectset(Set) ->
     Set.
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% check_constraints/2
-%%    
-check_constraints(S,C) when is_list(C) -> 
-    check_constraints(S, C, []).
-
-resolv_tuple_or_list(S,List) when is_list(List) ->
-    lists:map(fun(X)->resolv_value(S,X) end, List);
-resolv_tuple_or_list(S,{Lb,Ub}) ->
-    {resolv_value(S,Lb),resolv_value(S,Ub)}.
-
-%%%-----------------------------------------
-%% If the constraint value is a defined value the valuename
-%% is replaced by the actual value
 %%
-resolv_value(S,Val) ->
-    Id = match_parameters(S,Val, S#state.parameters),
-    resolv_value1(S,Id).
+%% Check and simplify constraints.
+%%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
-resolv_value1(S, ERef = #'Externalvaluereference'{value=Name}) ->
-    case catch resolve_namednumber(S, S#state.type, Name) of
-	V when is_integer(V) ->
-	    V;
-	_ ->
-	    case get_referenced_type(S,ERef) of
-		{Err,_Reason} when Err == error; Err == 'EXIT' ->
-		    throw({error,{asn1,{undefined_type_or_value,
-				Name}}});
-		{_M,VDef} ->
-		    resolv_value1(S,VDef)
-	    end
-    end;
-resolv_value1(S, {gt,V}) ->
-    case resolv_value1(S, V) of
-	Int when is_integer(Int) ->
-	    Int + 1;
-	Other ->
-	    throw({error,{asn1,{not_integer_value,Other}}})
-    end;
-resolv_value1(S, {lt,V}) ->
-    case resolv_value1(S, V) of
-	Int when is_integer(Int) ->
-	    Int - 1;
-	Other ->
-	    throw({error,{asn1,{not_integer_value,Other}}})
-    end;
-resolv_value1(S,{'ValueFromObject',{object,Object},[{valuefieldreference,
-						     FieldName}]}) ->
-    %% FieldName can hold either a fixed-type value or a variable-type value
-    %% Object is a DefinedObject, i.e. a #'Externaltypereference'
-    resolve_value_from_object(S,Object,FieldName);
-resolv_value1(_,#valuedef{checked=true,value=V}) ->
-    V;
-resolv_value1(S,#valuedef{type=_T,
-			  value={'ValueFromObject',{object,Object},
-				 [{valuefieldreference,
-				   FieldName}]}}) ->
-    resolve_value_from_object(S,Object,FieldName);
-resolv_value1(S,VDef = #valuedef{}) ->
-    #valuedef{value=Val} = check_value(S,VDef),
-    Val;
-resolv_value1(_,V) ->
-    V.
-resolve_value_from_object(S,Object,FieldName) ->
-    {_,ObjTDef} = get_referenced_type(S,Object),
-    TS = check_object(S,ObjTDef,ObjTDef#typedef.typespec),
-    {_,_,Components} = TS#'Object'.def,
-    case lists:keysearch(FieldName,1,Components) of
-	{value,{_,#valuedef{value=Val}}} ->
-	    Val;
-	_ ->
-	    error({value,"illegal value in constraint",S})
+check_constraints(_S, _HostType, []) ->
+    [];
+check_constraints(S, HostType0, [_|_]=Cs0) ->
+    HostType = get_real_host_type(HostType0, Cs0),
+    Cs1 = top_level_intersections(Cs0),
+    Cs2 = [coalesce_constraints(C) || C <- Cs1],
+    {_,Cs3} = filter_extensions(Cs2),
+    Cs = simplify_element_sets(S, HostType, Cs3),
+    finish_constraints(Cs).
+
+get_real_host_type(HostType, Cs) ->
+    case lists:keyfind(ocft, 1, Cs) of
+	false -> HostType;
+	{_,OCFT} -> HostType#type{def=OCFT}
     end.
 
+top_level_intersections([{element_set,{intersection,_,_}=C,none}]) ->
+    top_level_intersections_1(C);
+top_level_intersections(Cs) ->
+    Cs.
+
+top_level_intersections_1({intersection,A,B}) ->
+    [{element_set,A,none}|top_level_intersections_1(B)];
+top_level_intersections_1(Other) ->
+    [{element_set,Other,none}].
+
+coalesce_constraints({element_set,
+		  {Tag,{element_set,A,_}},
+		  {Tag,{element_set,B,_}}}) ->
+    %% (SIZE (C1), ..., (SIZE (C2)) => (SIZE (C1, ..., C2))
+    {element_set,{Tag,{element_set,A,B}},none};
+coalesce_constraints(Other) ->
+    Other.
+
+%% Remove all outermost extensions except the last.
+
+filter_extensions([H0|T0]) ->
+    case filter_extensions(T0) of
+	{true,T} ->
+	    H = remove_extension(H0),
+	    {true,[H|T]};
+	{false,T} ->
+	    {any_extension(H0),[H0|T]}
+    end;
+filter_extensions([]) ->
+    {false,[]}.
 
-resolve_namednumber(S,#typedef{typespec=Type},Name) ->
-    case Type#type.def of
-	{'ENUMERATED',NameList} ->
-	    resolve_namednumber_1(S, Name, NameList, Type);
-	{'INTEGER',NameList} ->
-	    resolve_namednumber_1(S, Name, NameList, Type);
+remove_extension({element_set,Root,_}) ->
+    {element_set,remove_extension(Root),none};
+remove_extension(Tuple) when is_tuple(Tuple) ->
+    L = [remove_extension(El) || El <- tuple_to_list(Tuple)],
+    list_to_tuple(L);
+remove_extension(Other) -> Other.
+
+any_extension({element_set,_,Ext}) when Ext =/= none ->
+    true;
+any_extension(Tuple) when is_tuple(Tuple) ->
+    any_extension_tuple(1, Tuple);
+any_extension(_) -> false.
+
+any_extension_tuple(I, T) when I =< tuple_size(T) ->
+    any_extension(element(I, T)) orelse any_extension_tuple(I+1, T);
+any_extension_tuple(_, _) -> false.
+
+simplify_element_sets(S, HostType, [{element_set,R0,E0}|T0]) ->
+    R1 = simplify_element_set(S, HostType, R0),
+    E1 = simplify_element_set(S, HostType, E0),
+    case simplify_element_sets(S, HostType, T0) of
+	[{element_set,R2,E2}] ->
+	    [{element_set,cs_intersection(S, R1, R2),
+	      cs_intersection(S, E1, E2)}];
+	L when is_list(L) ->
+	    [{element_set,R1,E1}|L]
+    end;
+simplify_element_sets(S, HostType, [H|T]) ->
+    [H|simplify_element_sets(S, HostType, T)];
+simplify_element_sets(_, _, []) ->
+    [].
+
+simplify_element_set(_S, _HostType, empty) ->
+    {set,[]};
+simplify_element_set(S, HostType, {'SingleValue',Vs0}) when is_list(Vs0) ->
+    Vs1 = [resolve_value(S, HostType, V) || V <- Vs0],
+    Vs = make_constr_set_vs(Vs1),
+    simplify_element_set(S, HostType, Vs);
+simplify_element_set(S, HostType, {'SingleValue',V0}) ->
+    V1 = resolve_value(S, HostType, V0),
+    V = {set,[{range,V1,V1}]},
+    simplify_element_set(S, HostType, V);
+simplify_element_set(S, HostType, {'ValueRange',{Lb0,Ub0}}) ->
+    Lb = resolve_value(S, HostType, Lb0),
+    Ub = resolve_value(S, HostType, Ub0),
+    V = make_constr_set(S, Lb, Ub),
+    simplify_element_set(S, HostType, V);
+simplify_element_set(S, HostType, {'ALL-EXCEPT',Set0}) ->
+    Set = simplify_element_set(S, HostType, Set0),
+    {'ALL-EXCEPT',Set};
+simplify_element_set(S, HostType, {intersection,A0,B0}) ->
+    A = simplify_element_set(S, HostType, A0),
+    B = simplify_element_set(S, HostType, B0),
+    cs_intersection(S, A, B);
+simplify_element_set(S, HostType, {union,A0,B0}) ->
+    A = simplify_element_set(S, HostType, A0),
+    B = simplify_element_set(S, HostType, B0),
+    cs_union(S, A, B);
+simplify_element_set(S, HostType, {simpletable,{element_set,Type,_}}) ->
+    check_simpletable(S, HostType, Type);
+simplify_element_set(S, _, {componentrelation,R,Id}) ->
+    check_componentrelation(S, R, Id);
+simplify_element_set(S, HostType, {Tag,{element_set,_,_}=El0}) ->
+    [El1] = simplify_element_sets(S, HostType, [El0]),
+    {Tag,El1};
+simplify_element_set(S, HostType, #type{}=Type) ->
+    simplify_element_set_type(S, HostType, Type);
+simplify_element_set(_, _, C) ->
+    C.
+
+simplify_element_set_type(S, HostType, #type{def=Def0}=Type0) ->
+    #'Externaltypereference'{} = Def0,		%Assertion.
+    case get_referenced_type(S, Def0) of
+	{_,#valuedef{checked=false,value={valueset,Vs0}}} ->
+	    [Vs1] = simplify_element_sets(S, HostType, [Vs0]),
+	    case Vs1 of
+		{element_set,Set,none} ->
+		    Set;
+		{element_set,Set,{set,[]}} ->
+		    Set
+	    end;
+	{_,{valueset,#type{def=#'Externaltypereference'{}}=Type}} ->
+	    simplify_element_set_type(S, HostType, Type);
 	_ ->
-	    not_enumerated
+	    case HostType of
+		#type{def=#'ObjectClassFieldType'{}} ->
+		    %% Open type.
+		    #type{def=Def} = check_type(S, HostType, Type0),
+		    Def;
+		_ ->
+		    #type{constraint=Cs} = check_type(S, HostType, Type0),
+		    C = convert_back(Cs),
+		    simplify_element_set(S, HostType, C)
+	    end
     end.
 
-resolve_namednumber_1(S, Name, NameList, Type) ->
-    NamedNumberList = check_enumerated(S, NameList, Type#type.constraint),
-    {_,N} = lookup_enum_value(S, Name, NamedNumberList),
-    N.
-    
-check_constraints(S,[{'ContainedSubtype',Type} | Rest], Acc) ->
-    {RefMod,CTDef} = get_referenced_type(S,Type#type.def),
-    NewS = S#state{module=load_asn1_module(S,RefMod),mname=RefMod,
-		   type=CTDef,tname=get_datastr_name(CTDef)},
-    CType = check_type(NewS,S#state.tname,CTDef#typedef.typespec),    
-    check_constraints(S,Rest,CType#type.constraint ++ Acc);
-check_constraints(S,[C | Rest], Acc) ->
-    check_constraints(S,Rest,[check_constraint(S,C) | Acc]);
-check_constraints(S,[],Acc) ->
-    constraint_merge(S,Acc).
-
-
-range_check(F={FixV,FixV}) ->
-%    FixV;
-    F;
-range_check(VR={Lb,Ub}) when Lb < Ub ->
-    VR;
-range_check(Err={_,_}) ->
-    throw({error,{asn1,{illegal_size_constraint,Err}}});
-range_check(Value) ->
-    Value.
-
-check_constraint(S,Ext) when is_record(Ext,'Externaltypereference') ->
-    check_externaltypereference(S,Ext);
-
-
-check_constraint(S,{'SizeConstraint',{Lb,Ub}}) 
-  when is_list(Lb); tuple_size(Lb) =:= 2 ->
-    NewLb = range_check(resolv_tuple_or_list(S,Lb)),
-    NewUb = range_check(resolv_tuple_or_list(S,Ub)),
-    {'SizeConstraint',{NewLb,NewUb}};
-check_constraint(S,{'SizeConstraint',{Lb,Ub}}) ->
-    case {resolv_value(S,Lb),resolv_value(S,Ub)} of
-	{FixV,FixV} ->
-	    {'SizeConstraint',FixV};
-	{Low,High} when Low < High ->
-	    {'SizeConstraint',{Low,High}};
-	Err ->
-	    throw({error,{asn1,{illegal_size_constraint,Err}}})
-    end;
-check_constraint(S,{'SizeConstraint',Lb}) ->
-    {'SizeConstraint',resolv_value(S,Lb)};
+convert_back([H1,H2|T]) ->
+   {intersection,H1,convert_back([H2|T])};
+convert_back([H]) ->
+    H;
+convert_back([]) ->
+    none.
 
-check_constraint(S,{'SingleValue', L}) when is_list(L) ->
-    F = fun(A) -> resolv_value(S,A) end,
-    {'SingleValue',lists:sort(lists:map(F,L))};
-    
-check_constraint(S,{'SingleValue', V}) when is_integer(V) ->
-    Val = resolv_value(S,V),
-%%    [{'SingleValue',Val},{'ValueRange',{Val,Val}}]; % Why adding value range?
-    {'SingleValue',Val};
-check_constraint(S,{'SingleValue', V}) ->
-    {'SingleValue',resolv_value(S,V)};
-
-check_constraint(S,{'ValueRange', {Lb, Ub}}) ->
-    {'ValueRange',{resolv_value(S,Lb),resolv_value(S,Ub)}};
-%% In case of a constraint with extension marks like (1..Ub,...)
-check_constraint(S,{VR={'ValueRange', {_Lb, _Ub}},Rest}) ->
-    {check_constraint(S,VR),Rest};
-check_constraint(_S,{'PermittedAlphabet',PA}) ->
-    {'PermittedAlphabet',permitted_alphabet_cnstr(PA)};
-
-check_constraint(S,{valueset,Type}) ->
-    {valueset,check_type(S,S#state.tname,Type)};
-
-check_constraint(_S,ST={simpletable,Type}) when is_atom(Type) ->
-    %% An already checked constraint
-    ST;
-check_constraint(S,{simpletable,Type}) ->
+check_simpletable(S, HostType, Type) ->
+    case HostType of
+	#type{def=#'ObjectClassFieldType'{}} ->
+	    ok;
+	_ ->
+	    %% Table constraints may only be applied to
+	    %% CLASS.&field constructs.
+	    asn1_error(S, illegal_table_constraint)
+    end,
     Def = case Type of
 	      #type{def=D} -> D;
-	      {'SingleValue',ObjRef = #'Externalvaluereference'{}} ->
-		  ObjRef
+	      {'SingleValue',#'Externalvaluereference'{}=ObjRef} ->
+		  ObjRef;
+	      _ ->
+		  asn1_error(S, invalid_table_constraint)
 	  end,
-    C = match_parameters(S,Def,S#state.parameters),
+    C = match_parameter(S, Def),
     case C of
 	#'Externaltypereference'{} ->
-	    ERef = check_externaltypereference(S,C),
-	    {simpletable,ERef#'Externaltypereference'.type};
-	#type{def=#'Externaltypereference'{}=ExtTypeRef} ->
-	    ERef = check_externaltypereference(S, ExtTypeRef),
+	    ERef = check_externaltypereference(S, C),
 	    {simpletable,ERef#'Externaltypereference'.type};
-	{valueset,#type{def=ERef=#'Externaltypereference'{}}} -> % this is an object set
-	    {_,TDef} = get_referenced_type(S,ERef),
-	    case TDef#typedef.typespec of 
-		#'ObjectSet'{} ->
-		    check_object(S,TDef,TDef#typedef.typespec),
-		    {simpletable,ERef#'Externaltypereference'.type};
-		Err ->
-		    exit({error,{internal_error,Err}})
-	    end;
 	#'Externalvaluereference'{} ->
 	    %% This is an object set with a referenced object
-	    {_,TorVDef} = get_referenced_type(S,C),
-	    GetObjectSet = 
-		fun(#typedef{typespec=O}) when is_record(O,'Object') ->
-			#'ObjectSet'{class=O#'Object'.classname,
-				     set={'SingleValue',C}};
-		   (#valuedef{type=Cl,value=O}) 
-		   when is_record(O,'Externalvaluereference'),
-			is_record(Cl,type) ->
-			%% an object might reference another object
-			#'ObjectSet'{class=Cl#type.def,
-				     set={'SingleValue',O}};
-		   (Err) -> 
-			exit({error,{internal_error,simpletable_constraint,Err}})
-		end,
-	    ObjSet = GetObjectSet(TorVDef),
-	    {simpletable,check_object(S,Type,ObjSet)};
-	#'ObjectSet'{} ->
-	    io:format("ALERT: simpletable forbidden case!~n",[]),
-	    {simpletable,check_object(S,Type,C)};
-	{'ValueFromObject',{_,ORef},FieldName} ->
-	    %% This is an ObjectFromObject
-	    {_,Object} = get_referenced_type(S,ORef),
-	    ChObject = check_object(S,Object,
-				    Object#typedef.typespec),
-	    ObjFromObj=
-		get_fieldname_element(S,Object#typedef{
-					  typespec=ChObject},
-				      FieldName),
-	    {simpletable,ObjFromObj};
-%% 	     ObjFromObj#typedef{checked=true,typespec=
-%% 				check_object(S,ObjFromObj,
-%% 					     ObjFromObj#typedef.typespec)}};
-	_ -> 
-	    check_type(S,S#state.tname,Type),%% this seems stupid.
-	    OSName = Def#'Externaltypereference'.type,
-	    {simpletable,OSName}
-    end;
+	    {_,TorVDef} = get_referenced_type(S, C),
+	    Set = case TorVDef of
+		      #typedef{typespec=#'Object'{classname=ClassName}} ->
+			  #'ObjectSet'{class=ClassName,
+				       set={'SingleValue',C}};
+		      #valuedef{type=#type{def=ClassDef},
+				value=#'Externalvaluereference'{}=Obj} ->
+			  %% an object might reference another object
+			  #'ObjectSet'{class=ClassDef,
+				       set={'SingleValue',Obj}}
+		  end,
+	    {simpletable,check_object(S, Type, Set)};
+	{'ValueFromObject',{_,Object},FieldNames} ->
+	    %% This is an ObjectFromObject.
+	    {simpletable,extract_field(S, Object, FieldNames)}
+    end.
 
-check_constraint(S,{componentrelation,{objectset,Opos,Objset},Id}) ->
+check_componentrelation(S, {objectset,Opos,Objset0}, Id) ->
     %% Objset is an 'Externaltypereference' record, since Objset is
     %% a DefinedObjectSet.
-    RealObjset = match_parameters(S,Objset,S#state.parameters),
-    ObjSetRef =
-	case RealObjset of
-	    #'Externaltypereference'{} -> RealObjset;
-	    #type{def=#'Externaltypereference'{}} -> RealObjset#type.def;
-	    {valueset,OS = #type{def=#'Externaltypereference'{}}} -> OS#type.def
-	end,
-    Ext = check_externaltypereference(S,ObjSetRef),
-    {componentrelation,{objectset,Opos,Ext},Id};
+    ObjSet = match_parameter(S, Objset0),
+    Ext = check_externaltypereference(S, ObjSet),
+    {componentrelation,{objectset,Opos,Ext},Id}.
+
+%%%
+%%% Internal set representation.
+%%%
+%%% We represent sets as a union of strictly disjoint ranges:
+%%%
+%%%   {set,[Range]}
+%%%
+%%% A range is represented as:
+%%%
+%%%   Range = {a_range,UpperBound} | {range,LowerBound,UpperBound}
+%%%
+%%% We don't use the atom 'MIN' to represent MIN, because atoms
+%%% compare higher than integer. Instead we use {a_range,UpperBound}
+%%% to represent MIN..UpperBound. We represent MAX as 'MAX' because
+%%% 'MAX' compares higher than any integer.
+%%%
+%%% The ranges are sorted in term order. The ranges must not overlap
+%%% or be adjacent to each other. This invariant is established when
+%%% creating sets, and maintained by the intersection and union
+%%% operators.
+%%%
+%%% Example of invalid set representaions:
+%%%
+%%%   [{range,0,10},{range,5,10}]    %Overlapping ranges
+%%%   [{range,0,5},{range,6,10}]     %Adjancent ranges
+%%%   [{range,10,20},{a_range,100}]  %Not sorted
+%%%
+
+make_constr_set(_, 'MIN', Ub) ->
+    {set,[{a_range,make_constr_set_val(Ub)}]};
+make_constr_set(_, Lb, Ub) when Lb =< Ub ->
+    {set,[{range,make_constr_set_val(Lb),
+	   make_constr_set_val(Ub)}]};
+make_constr_set(S, _, _) ->
+    asn1_error(S, reversed_range).
+
+make_constr_set_val([C]) when is_integer(C) -> C;
+make_constr_set_val(Val) -> Val.
+
+make_constr_set_vs(Vs) ->
+    {set,make_constr_set_vs_1(Vs)}.
+
+make_constr_set_vs_1([]) ->
+    [];
+make_constr_set_vs_1([V]) ->
+    [{range,V,V}];
+make_constr_set_vs_1([V0|Vs]) ->
+    V1 = make_constr_set_vs_1(Vs),
+    range_union([{range,V0,V0}], V1).
+
+%%%
+%%% Set operators.
+%%%
+
+cs_intersection(_S, Other, none) ->
+    Other;
+cs_intersection(_S, none, Other) ->
+    Other;
+cs_intersection(_S, {set,SetA}, {set,SetB}) ->
+    {set,range_intersection(SetA, SetB)};
+cs_intersection(_S, A, B) ->
+    {intersection,A,B}.
+
+range_intersection([], []) ->
+    [];
+range_intersection([_|_], []) ->
+    [];
+range_intersection([], [_|_]) ->
+    [];
+range_intersection([H1|_]=A, [H2|_]=B) when H1 > H2 ->
+    range_intersection(B, A);
+range_intersection([H1|T1], [H2|T2]=B) ->
+    %% Now H1 =< H2.
+    case {H1,H2} of
+	{{a_range,Ub0},{a_range,Ub1}} when Ub0 < Ub1 ->
+	    %% Ub0 =/= 'MAX'
+	    [H1|range_intersection(T1, [{range,Ub0+1,Ub1}|T2])];
+	{{a_range,_},{a_range,_}} ->
+	    %% Must be equal.
+	    [H1|range_intersection(T1, T2)];
+	{{a_range,Ub0},{range,Lb1,_Ub1}} when Ub0 < Lb1 ->
+	    %% No intersection.
+	    range_intersection(T1, B);
+	{{a_range,Ub0},{range,Lb1,Ub1}} when Ub0 < Ub1 ->
+	    %% Ub0 =/= 'MAX'
+	    [{range,Lb1,Ub0}|range_intersection(T1, [{range,Ub0+1,Ub1}|T2])];
+	{{a_range,Ub},{range,_Lb1,Ub}} ->
+	    %% The first range covers the second range, but does not
+	    %% go beyond. We handle this case specially because Ub may
+	    %% be 'MAX', and evaluating 'MAX'+1 will fail.
+	    [H2|range_intersection(T1, T2)];
+	{{a_range,Ub0},{range,_Lb1,Ub1}} ->
+	    %% Ub0 > Ub1, Ub1 =/= 'MAX'. The first range completely
+	    %% covers and extends beyond the second range.
+	    [H2|range_intersection([{range,Ub1+1,Ub0}|T1], T2)];
+	{{range,_Lb0,Ub0},{range,Lb1,_Ub1}} when Ub0 < Lb1 ->
+	    %% Lb0 < Lb1. No intersection.
+	    range_intersection(T1, B);
+	{{range,_Lb0,Ub0},{range,Lb1,Ub1}} when Ub0 < Ub1 ->
+	    %% Ub0 >= Lb1, Ub0 =/= 'MAX'. Partial overlap.
+	    [{range,Lb1,Ub0}|range_intersection(T1, [{range,Ub0+1,Ub1}|T2])];
+	{{range,_Lb0,Ub},{range,_Lb1,Ub}} ->
+	    %% The first range covers the second range, but does not
+	    %% go beyond. We handle this case specially because Ub may
+	    %% be 'MAX', and evaluating 'MAX'+1 will fail.
+	    [H2|range_intersection(T1, T2)];
+	{{range,_Lb0,Ub0},{range,_Lb1,Ub1}} ->
+	    %% Ub1 =/= MAX. The first range completely covers and
+	    %% extends beyond the second.
+	    [H2|range_intersection([{range,Ub1+1,Ub0}|T1], T2)]
+    end.
 
-check_constraint(S,Type) when is_record(Type,type) ->
-    #type{def=Def} = check_type(S,S#state.tname,Type),
-    Def;
+cs_union(_S, {set,SetA}, {set,SetB}) ->
+    {set,range_union(SetA, SetB)};
+cs_union(_S, A, B) ->
+    {union,A,B}.
+
+range_union(A, B) ->
+    range_union_1(lists:merge(A, B)).
+
+range_union_1([{a_range,Ub0},{a_range,Ub1}|T]) ->
+    range_union_1([{a_range,max(Ub0, Ub1)}|T]);
+range_union_1([{a_range,Ub0},{range,Lb1,Ub1}|T]) when Lb1-1 =< Ub0 ->
+    range_union_1([{a_range,max(Ub0, Ub1)}|T]);
+range_union_1([{a_range,_}=H|T]) ->
+    %% Ranges are disjoint.
+    [H|range_union_1(T)];
+range_union_1([{range,Lb0,Ub0},{range,Lb1,Ub1}|T]) when Lb1-1 =< Ub0 ->
+    range_union_1([{range,Lb0,max(Ub0, Ub1)}|T]);
+range_union_1([{range,_,_}=H|T]) ->
+    %% Ranges are disjoint.
+    [H|range_union_1(T)];
+range_union_1([]) ->
+    [].
 
-check_constraint(S,C) when is_list(C) ->
-    lists:map(fun(X)->check_constraint(S,X) end,C);
-% else keep the constraint unchanged
-check_constraint(_S,Any) ->
-%    io:format("Constraint = ~p~n",[Any]),
-    Any.
-
-permitted_alphabet_cnstr(T) when is_tuple(T) ->
-    permitted_alphabet_cnstr([T]);
-permitted_alphabet_cnstr(L) when is_list(L) ->
-    VRexpand = fun({'ValueRange',{A,B}}) ->
-		       {'SingleValue',expand_valuerange(A,B)};
-		  (Other) ->
-		       Other
-	       end,
-    L2 = lists:map(VRexpand,L),
-    %% first perform intersection
-    L3 = permitted_alphabet_intersection(L2),
-    [Res] = permitted_alphabet_union(L3),
-    Res.
+%%%
+%%% Finish up constrains, making them suitable for the back-ends.
+%%%
+%%% A 'PermittedAlphabet' (FROM) constraint will be reduced to:
+%%%
+%%%   {'SingleValue',[integer()]}
+%%%
+%%% A 'SizeConstraint' (SIZE) constraint will be reduced to:
+%%%
+%%%   {Lb,Ub}
+%%%
+%%% All other constraints will be reduced to:
+%%%
+%%%   {'SingleValue',[integer()]} | {'ValueRange',Lb,Ub}
+%%%
+
+finish_constraints(Cs) ->
+    finish_constraints_1(Cs, fun smart_collapse/1).
+
+finish_constraints_1([{element_set,{Tag,{element_set,_,_}=Set0},none}|T],
+		     Collapse0) ->
+    Collapse = collapse_fun(Tag),
+    case finish_constraints_1([Set0], Collapse) of
+	[] ->
+	    finish_constraints_1(T, Collapse0);
+	[Set] ->
+	    [{Tag,Set}|finish_constraints_1(T, Collapse0)]
+    end;
+finish_constraints_1([{element_set,{set,[{a_range,'MAX'}]},_}|T], Collapse) ->
+    finish_constraints_1(T, Collapse);
+finish_constraints_1([{element_set,{intersection,A0,B0},none}|T], Collapse) ->
+    A = {element_set,A0,none},
+    B = {element_set,B0,none},
+    finish_constraints_1([A,B|T], Collapse);
+finish_constraints_1([{element_set,Root,Ext}|T], Collapse) ->
+    case finish_constraint(Root, Ext, Collapse) of
+	none ->
+	    finish_constraints_1(T, Collapse);
+	Constr ->
+	    [Constr|finish_constraints_1(T, Collapse)]
+    end;
+finish_constraints_1([H|T], Collapse) ->
+    [H|finish_constraints_1(T, Collapse)];
+finish_constraints_1([], _) ->
+    [].
 
-expand_valuerange([A],[A]) ->
-    [A];
-expand_valuerange([A],[B]) when A < B ->
-    [A|expand_valuerange([A+1],[B])].
+finish_constraint({set,Root0}, Ext, Collapse) ->
+    case Collapse(Root0) of
+	none -> none;
+	Root -> finish_constraint(Root, Ext, Collapse)
+    end;
+finish_constraint(Root, Ext, _Collapse) ->
+    case Ext of
+	none -> Root;
+	_ -> {Root,[]}
+    end.
 
-permitted_alphabet_intersection(C) ->
-    permitted_alphabet_merge(C,intersection, []).
+collapse_fun('SizeConstraint') ->
+    fun size_constraint_collapse/1;
+collapse_fun('PermittedAlphabet') ->
+    fun single_value_collapse/1.
 
-permitted_alphabet_union(C) ->
-    permitted_alphabet_merge(C,union, []).
+single_value_collapse(V) ->
+    {'SingleValue',ordsets:from_list(single_value_collapse_1(V))}.
 
-permitted_alphabet_merge([],_,Acc) ->
-    lists:reverse(Acc);
-permitted_alphabet_merge([{'SingleValue',L1},
-			  UorI,
-			  {'SingleValue',L2}|Rest],UorI,Acc)
-  when is_list(L1),is_list(L2) ->
-    UI = ordsets:UorI([ordsets:from_list(L1),ordsets:from_list(L2)]),
-    permitted_alphabet_merge([{'SingleValue',UI}|Rest],UorI,Acc);
-permitted_alphabet_merge([C1|Rest],UorI,Acc) ->
-    permitted_alphabet_merge(Rest,UorI,[C1|Acc]).
-
-
-%% constraint_merge/2
-%% Compute the intersection of the outermost level of the constraint list.
-%% See Dubuisson second paragraph and fotnote on page 285.
-%% If constraints with extension are included in combined constraints. The 
-%% resulting combination will have the extension of the last constraint. Thus,
-%% there will be no extension if the last constraint is without extension.
-%% The rootset of all constraints are considered in the "outermoust 
-%% intersection". See section 13.1.2 in Dubuisson.
-constraint_merge(St, Cs0) ->
-    Cs = constraint_merge_1(St, Cs0),
-    normalize_cs(Cs).
-
-normalize_cs([{'SingleValue',[V]}|Cs]) ->
-    [{'SingleValue',V}|normalize_cs(Cs)];
-normalize_cs([{'SingleValue',[_|_]=L0}|Cs]) ->
-    [H|T] = L = lists:usort(L0),
-    [case is_range(H, T) of
-	 false -> {'SingleValue',L};
-	 true -> {'ValueRange',{H,lists:last(T)}}
-     end|normalize_cs(Cs)];
-normalize_cs([{'ValueRange',{Sv,Sv}}|Cs]) ->
-    [{'SingleValue',Sv}|normalize_cs(Cs)];
-normalize_cs([{'ValueRange',{'MIN','MAX'}}|Cs]) ->
-    normalize_cs(Cs);
-normalize_cs([{'SizeConstraint',C0}|Cs]) ->
-    case normalize_size_constraint(C0) of
-	none ->
-	    normalize_cs(Cs);
-	C ->
-	    [{'SizeConstraint',C}|normalize_cs(Cs)]
-    end;
-normalize_cs([H|T]) ->
-    [H|normalize_cs(T)];
-normalize_cs([]) -> [].
+single_value_collapse_1([{range,Lb,Ub}|T]) when is_integer(Lb),
+					      is_integer(Ub) ->
+    lists:seq(Lb, Ub) ++ single_value_collapse_1(T);
+single_value_collapse_1([]) ->
+    [].
 
-%% Normalize a size constraint to make it non-ambiguous and
-%% easy to interpret for the backends.
-%%
-%% Returns one of the following terms:
-%%  {LowerBound,UpperBound}
-%%  {{LowerBound,UpperBound},[]}     % Extensible
-%%  none                             % Remove size constraint from list
-%%
-%% where:
-%%  LowerBound = integer()
-%%  UpperBound = integer() | 'MAX'
-
-normalize_size_constraint(Sv) when is_integer(Sv) ->
-    {Sv,Sv};
-normalize_size_constraint({Root,Ext}) when is_list(Ext) ->
-    {normalize_size_constraint(Root),[]};
-normalize_size_constraint({{_,_},Ext}) when is_integer(Ext) ->
-    normalize_size_constraint(Ext);
-normalize_size_constraint([H|T]) ->
-    {H,lists:last(T)};
-normalize_size_constraint({0,'MAX'}) ->
+smart_collapse([{a_range,Ub}]) ->
+    {'ValueRange',{'MIN',Ub}};
+smart_collapse([{a_range,_}|T]) ->
+    {range,_,Ub} = lists:last(T),
+    {'ValueRange',{'MIN',Ub}};
+smart_collapse([{range,Lb,Ub}]) ->
+    {'ValueRange',{Lb,Ub}};
+smart_collapse([_|_]=L) ->
+    V = lists:foldr(fun({range,Lb,Ub}, A) ->
+			    seq(Lb, Ub) ++ A
+		    end, [], L),
+    {'SingleValue',V}.
+
+size_constraint_collapse([{range,0,'MAX'}]) ->
     none;
-normalize_size_constraint({Lb,Ub}=Range)
-  when is_integer(Lb), is_integer(Ub) orelse Ub =:= 'MAX' ->
-    Range.
+size_constraint_collapse(Root) ->
+    [{range,Lb,_}|_] = Root,
+    {range,_,Ub} = lists:last(Root),
+    {Lb,Ub}.
 
-is_range(Prev, [H|T]) when Prev =:= H - 1 -> is_range(H, T);
-is_range(_, [_|_]) -> false;
-is_range(_, []) -> true.
+seq(Same, Same) ->
+    [Same];
+seq(Lb, Ub) when is_integer(Lb), is_integer(Ub) ->
+    lists:seq(Lb, Ub).
 
-constraint_merge_1(_S, [H]=C) when is_tuple(H) ->
-    C;
-constraint_merge_1(_S, []) ->
-    [];
-constraint_merge_1(S, C) ->
-    %% skip all extension but the last extension
-    C1 = filter_extensions(C),
-    %% perform all internal level intersections, intersections first
-    %% since they have precedence over unions
-    C2 = lists:map(fun(X)when is_list(X)->constraint_intersection(S,X);
-		      (X) -> X end,
-		   C1),
-    %% perform all internal level unions
-    C3 = lists:map(fun(X)when is_list(X)->constraint_union(S,X);
-		      (X) -> X end,
-		   C2),
-
-    %% now get intersection of the outermost level
-    %% get the least common single value constraint
-    SVs = get_constraints(C3,'SingleValue'),
-    CombSV = intersection_of_sv(S,SVs),
-    %% get the least common value range constraint
-    VRs = get_constraints(C3,'ValueRange'),
-    CombVR = intersection_of_vr(S,VRs),
-    %% get the least common size constraint
-    SZs = get_constraints(C3,'SizeConstraint'),
-    CombSZ = intersection_of_size(S,SZs),
-    RestC = ordsets:subtract(ordsets:from_list(C3),
-			     ordsets:from_list(SZs ++ VRs ++ SVs)),
-    %% get the least common combined constraint. That is the union of each
-    %% deep constraint and merge of single value and value range constraints.
-    %% FIXME: Removing 'intersection' from the flattened list essentially
-    %% means that intersections are converted to unions!
-    Cs = combine_constraints(S, CombSV, CombVR, CombSZ++RestC),
-    [X || X <- lists:flatten(Cs),
-	  X =/= intersection,
-	  X =/= union].
-
-%% constraint_union(S,C) takes a list of constraints as input and
-%% merge them to a union. Unions are performed when two
-%% constraints is found with an atom union between. 
-%% The list may be nested. Fix that later !!!
-constraint_union(_S,[]) ->
-    [];
-constraint_union(_S,C=[_E]) ->
-    C;
-constraint_union(S,C) when is_list(C) ->
-    case lists:member(union,C) of
-	true ->
-	    constraint_union1(S,C,[]);
-	_ ->
-	    C
-    end;
-%     SV = get_constraints(C,'SingleValue'),
-%     SV1 = constraint_union_sv(S,SV),
-%     VR = get_constraints(C,'ValueRange'),
-%     VR1 = constraint_union_vr(VR),
-%     RestC = ordsets:filter(fun({'SingleValue',_})->false;
-% 			      ({'ValueRange',_})->false;
-% 			      (_) -> true end,ordsets:from_list(C)),
-%     SV1++VR1++RestC;
-constraint_union(_S,C) ->
-    [C].
-
-constraint_union1(S, [{'ValueRange',{Lb1,Ub1}},union,
-		      {'ValueRange',{Lb2,Ub2}}|Rest], Acc) ->
-    AunionB = {'ValueRange',{c_min(Lb1, Lb2),max(Ub1, Ub2)}},
-    constraint_union1(S,  [AunionB|Rest], Acc);
-constraint_union1(S,[A={'SingleValue',_},union,B={'SingleValue',_}|Rest],Acc) ->
-    AunionB = constraint_union_sv(S,[A,B]),
-    constraint_union1(S,Rest,Acc ++ AunionB);
-constraint_union1(S,[A={'SingleValue',_},union,B={'ValueRange',_}|Rest],Acc) ->
-    AunionB = union_sv_vr(S,A,B),
-    constraint_union1(S, AunionB++Rest, Acc);
-constraint_union1(S,[A={'ValueRange',_},union,B={'SingleValue',_}|Rest],Acc) ->
-    AunionB = union_sv_vr(S,B,A),
-    constraint_union1(S, AunionB++Rest, Acc);
-constraint_union1(S,[union|Rest],Acc) -> %skip when unsupported constraints
-    constraint_union1(S,Rest,Acc);
-constraint_union1(S,[A|Rest],Acc) ->
-    constraint_union1(S,Rest,[A|Acc]);
-constraint_union1(_S,[],Acc) ->
-    Acc.
+%%%-----------------------------------------
+%% If the constraint value is a defined value the valuename
+%% is replaced by the actual value
+%%
+resolve_value(S, HostType, Val) ->
+    Id = match_parameter(S, Val),
+    resolve_value1(S, HostType, Id).
 
-constraint_union_sv(_S,SV) ->
-    Values=lists:map(fun({_,V})->V end,SV),
-    case ordsets:from_list(Values) of
-	[] -> [];
-	[N] -> [{'SingleValue',N}];
-	L -> [{'SingleValue',L}]
-    end.
-c_min('MIN', _) -> 'MIN';
-c_min(_, 'MIN') -> 'MIN';
-c_min(A, B) -> min(A, B).
-
-union_sv_vr(_S,{'SingleValue',SV},VR) 
-  when is_integer(SV) ->
-    union_sv_vr(_S,{'SingleValue',[SV]},VR);
-union_sv_vr(_S,{'SingleValue',SV},{'ValueRange',{VLb,VUb}}) 
-  when is_list(SV) ->
-    L = lists:sort(SV++[VLb,VUb]),
-    {Lb,L1} = case lists:member('MIN',L) of 
-		  true -> {'MIN',L--['MIN']}; % remove 'MIN' so it does not disturb
-		  false -> {hd(L),tl(L)}
-	      end,
-    Ub = case lists:member('MAX',L1) of
-	     true -> 'MAX';
-	     false -> lists:last(L1)
-	 end,
-    case SV of
-	[H] -> H;
-	_ -> SV
-    end,
-    %% for now we through away the Singlevalues so that they don't disturb
-    %% in the code generating phase (the effective Valuerange is already
-    %% calculated. If we want to keep the Singlevalues as well for
-    %% use in code gen phases we need to introduce a new representation
-    %% like {'ValueRange',{Lb,Ub},[ListOfRanges|AntiValues|Singlevalues]
-    %% These could be used to generate guards which allows only the specific
-    %% values , not the full range
-    [{'ValueRange',{Lb,Ub}}]. 
-
-		    
-%% get_constraints/2  
-%% Arguments are a list of constraints, which has the format {key,value},
-%% and a constraint type
-%% Returns a list of constraints only of the requested type or the atom
-%% 'no' if no such constraints were found
-get_constraints(L=[{CType,_}],CType) ->
-    L;
-get_constraints(C,CType) ->
-   keysearch_allwithkey(CType,1,C).
-
-%% keysearch_allwithkey(Key,Ix,L)
-%% Types:
-%% Key = is_atom()
-%% Ix = integer()
-%% L  = [TwoTuple]
-%% TwoTuple = [{atom(),term()}|...]
-%% Returns a List that contains all 
-%% elements from L that has a key Key as element Ix
-keysearch_allwithkey(Key,Ix,L) ->
-    lists:filter(fun(X) when is_tuple(X) ->
-			 case element(Ix,X) of
-			     Key -> true;
-			     _ -> false
-			 end;
-		    (_) -> false
-		 end, L).
-
-
-%% filter_extensions(C)
-%% takes a list of constraints as input and returns a list with the
-%% constraints and all extensions but the last are removed.
-filter_extensions([L]) when is_list(L) ->
-    [filter_extensions(L)];
-filter_extensions(C=[_H]) ->
-    C;
-filter_extensions(C) when is_list(C) ->
-    filter_extensions(C,[], []).
-
-filter_extensions([],Acc,[]) ->
-    Acc;
-filter_extensions([],Acc,[EC|ExtAcc]) ->
-    CwoExt = remove_extension(ExtAcc,[]),
-    CwoExt ++ [EC|Acc];
-filter_extensions([C={A,_E}|T],Acc,ExtAcc) when is_tuple(A) ->
-    filter_extensions(T,Acc,[C|ExtAcc]);
-filter_extensions([C={'SizeConstraint',{A,_B}}|T],Acc,ExtAcc) 
-  when is_list(A);is_tuple(A) ->
-    filter_extensions(T,Acc,[C|ExtAcc]);
-filter_extensions([C={'PermittedAlphabet',{{'SingleValue',_},E}}|T],Acc,ExtAcc)
-  when is_tuple(E); is_list(E) ->
-    filter_extensions(T,Acc,[C|ExtAcc]);
-filter_extensions([H|T],Acc,ExtAcc) ->
-    filter_extensions(T,[H|Acc],ExtAcc).
-
-remove_extension([],Acc) ->
-    Acc;
-remove_extension([{'SizeConstraint',{A,_B}}|R],Acc) ->
-    remove_extension(R,[{'SizeConstraint',A}|Acc]);
-remove_extension([{C,_E}|R],Acc) when is_tuple(C) ->
-    remove_extension(R,[C|Acc]);
-remove_extension([{'PermittedAlphabet',{A={'SingleValue',_},
-					E}}|R],Acc) 
-  when is_tuple(E);is_list(E) ->
-    remove_extension(R,[{'PermittedAlphabet',A}|Acc]).
-
-%% constraint_intersection(S,C) takes a list of constraints as input and
-%% performs intersections. Intersecions are performed when an 
-%% atom intersection is found between two constraints. 
-%% The list may be nested. Fix that later !!!
-constraint_intersection(_S,[]) ->
-    [];
-constraint_intersection(_S,C=[_E]) ->
-    C;
-constraint_intersection(S,C) when is_list(C) ->
-%    io:format("constraint_intersection: ~p~n",[C]),
-    case lists:member(intersection,C) of
-	true ->
-	    constraint_intersection1(S,C,[]);
-	_ ->
-	    C
+resolve_value1(S, HostType, #'Externalvaluereference'{value=Name}=ERef) ->
+    case resolve_namednumber(S, HostType, Name) of
+	V when is_integer(V) ->
+	    V;
+	not_named ->
+	    resolve_value1(S, HostType, get_referenced_value(S, ERef))
     end;
-constraint_intersection(_S,C) ->
-    [C].
-
-constraint_intersection1(S,[A,intersection,B|Rest],Acc) ->
-    AisecB = c_intersect(S,A,B),
-    constraint_intersection1(S, AisecB++Rest, Acc);
-constraint_intersection1(S,[A|Rest],Acc) ->
-    constraint_intersection1(S,Rest,[A|Acc]);
-constraint_intersection1(_, [], [C]) ->
-    C;
-constraint_intersection1(_,[],Acc) ->
-    lists:reverse(Acc).
-
-c_intersect(S,C1={'SingleValue',_},C2={'SingleValue',_}) ->
-    intersection_of_sv(S,[C1,C2]);
-c_intersect(S,C1={'ValueRange',_},C2={'ValueRange',_}) ->
-    intersection_of_vr(S,[C1,C2]);
-c_intersect(S,C1={'ValueRange',_},C2={'SingleValue',_}) ->
-    intersection_sv_vr(S,[C2],[C1]);
-c_intersect(S,C1={'SingleValue',_},C2={'ValueRange',_}) ->
-    intersection_sv_vr(S,[C1],[C2]);
-c_intersect(_S,C1,C2) ->
-    [C1,C2].
-
-%% combine_constraints(S,SV,VR,CComb)
-%% Types:
-%% S = is_record(state,S)
-%% SV = [] | [SVC]
-%% VR = [] | [VRC]
-%% CComb = [] | [Lists]
-%% SVC = {'SingleValue',integer()} | {'SingleValue',[integer(),...]}
-%% VRC = {'ValueRange',{Lb,Ub}}
-%% Lists = List of lists containing any constraint combination
-%% Lb = 'MIN' | integer()
-%% Ub = 'MAX' | integer()
-%% Returns a combination of the least common constraint among SV,VR and all
-%% elements in CComb
-combine_constraints(_S,[],VR,CComb) ->
-    VR ++ CComb;
-%    combine_combined_cnstr(S,VR,CComb);
-combine_constraints(_S,SV,[],CComb) ->
-    SV ++ CComb;
-%    combine_combined_cnstr(S,SV,CComb);
-combine_constraints(S,SV,VR,CComb) ->
-    C=intersection_sv_vr(S,SV,VR),
-    C ++ CComb.
-%    combine_combined_cnstr(S,C,CComb).
-
-intersection_sv_vr(_S,[C1={'SingleValue',SV}],[C2={'ValueRange',{_Lb,_Ub}}]) 
-  when is_integer(SV) ->
-    case is_int_in_vr(SV,C2) of
-	true -> [C1];
-	_ -> %%error({type,{"asn1 illegal constraint",C1,C2},S})
-	    %throw({error,{"asn1 illegal constraint",C1,C2}})
-	    %io:format("warning: could not analyze constraint ~p~n",[[C1,C2]]),
-	    [C1,C2]
+resolve_value1(S, HostType, {gt,V}) ->
+    case resolve_value1(S, HostType, V) of
+	Int when is_integer(Int) ->
+	    Int + 1;
+	_Other ->
+	    asn1_error(S, illegal_integer_value)
     end;
-intersection_sv_vr(_S,[C1={'SingleValue',SV}],[C2]) 
-  when is_list(SV) ->
-    case lists:filter(fun(X)->is_int_in_vr(X,C2) end,SV) of
-	[] ->
-	    %%error({type,{"asn1 illegal constraint",C1,C2},S});
-	    %throw({error,{"asn1 illegal constraint",C1,C2}});
-	    %io:format("warning: could not analyze constraint ~p~n",[[C1,C2]]),
-	    [C1,C2];
-	[V] -> [{'SingleValue',V}];
-	L -> [{'SingleValue',L}]
-    end.
-
-
-%% Size constraint [{'SizeConstraint',1},{'SizeConstraint',{{1,64},[]}}]
-
-intersection_of_size(_,[]) ->
-    [];
-intersection_of_size(_,C=[_SZ]) ->
-    C;
-intersection_of_size(S,[SZ,SZ|Rest]) ->
-    intersection_of_size(S,[SZ|Rest]);
-intersection_of_size(S,C=[C1={_,Int},{_,Range}|Rest]) 
-  when is_integer(Int),is_tuple(Range) ->
-    case Range of
-	{Lb,Ub} when Int >= Lb,
-		     Int =< Ub ->
-	    intersection_of_size(S,[C1|Rest]);
-	{{Lb,Ub},Ext} when is_list(Ext),Int >= Lb,Int =< Ub ->
-	    intersection_of_size(S,[C1|Rest]);
-	_ ->
-	    throw({error,{asn1,{illegal_size_constraint,C}}})
+resolve_value1(S, HostType, {lt,V}) ->
+    case resolve_value1(S, HostType, V) of
+	Int when is_integer(Int) ->
+	    Int - 1;
+	_Other ->
+	    asn1_error(S, illegal_integer_value)
     end;
-intersection_of_size(S,[C1={_,Range},C2={_,Int}|Rest]) 
-  when is_integer(Int),is_tuple(Range) ->
-    intersection_of_size(S,[C2,C1|Rest]);
-intersection_of_size(S,[{_,{Lb1,Ub1}},{_,{Lb2,Ub2}}|Rest]) ->
-    Lb=greatest_LB(ordsets:from_list([Lb1,Lb2])),
-    Ub=smallest_UB(ordsets:from_list([Ub1,Ub2])),
-    intersection_of_size(S,[{'SizeConstraint',{Lb,Ub}}|Rest]);
-intersection_of_size(_,SZ) ->
-    throw({error,{asn1,{illegal_size_constraint,SZ}}}).
-
-intersection_of_vr(_,[]) ->
-    [];
-intersection_of_vr(_,VR=[_C]) ->
-    VR;
-intersection_of_vr(S,[{_,{Lb1,Ub1}},{_,{Lb2,Ub2}}|Rest]) ->
-    Lb=greatest_LB(ordsets:from_list([Lb1,Lb2])),
-    Ub=smallest_UB(ordsets:from_list([Ub1,Ub2])),
-    intersection_of_vr(S,[{'ValueRange',{Lb,Ub}}|Rest]);
-intersection_of_vr(_S,VR) ->
-    %%error({type,{asn1,{illegal_value_range_constraint,VR}},S});
-    throw({error,{asn1,{illegal_value_range_constraint,VR}}}).
-
-intersection_of_sv(_,[]) ->
-    [];
-intersection_of_sv(_,SV=[_C]) ->
-    SV;
-intersection_of_sv(S,[SV,SV|Rest]) ->
-    intersection_of_sv(S,[SV|Rest]);
-intersection_of_sv(S,[{_,Int},{_,SV}|Rest]) when is_integer(Int),
-						 is_list(SV) ->
-    SV2=intersection_of_sv1(S,Int,SV),
-    intersection_of_sv(S,[SV2|Rest]);
-intersection_of_sv(S,[{_,SV},{_,Int}|Rest]) when is_integer(Int),
-						 is_list(SV) ->
-    SV2=intersection_of_sv1(S,Int,SV),
-    intersection_of_sv(S,[SV2|Rest]);
-intersection_of_sv(S,[{_,SV1},{_,SV2}|Rest]) when is_list(SV1),
-						  is_list(SV2) ->
-    SV3=common_set(SV1,SV2),
-    intersection_of_sv(S,[SV3|Rest]);
-intersection_of_sv(_S,SV) ->
-    %%error({type,{asn1,{illegal_single_value_constraint,SV}},S}).
-    throw({error,{asn1,{illegal_single_value_constraint,SV}}}).
-
-intersection_of_sv1(_S,Int,SV) when is_integer(Int),is_list(SV) ->
-    case lists:member(Int,SV) of
-	true -> {'SingleValue',Int};
+resolve_value1(S, _HostType, {'ValueFromObject',{object,Object},FieldName}) ->
+    get_value_from_object(S, Object, FieldName);
+resolve_value1(_, _, #valuedef{checked=true,value=V}) ->
+    V;
+resolve_value1(S, _, #valuedef{value={'ValueFromObject',
+				     {object,Object},FieldName}}) ->
+    get_value_from_object(S, Object, FieldName);
+resolve_value1(S, _HostType, #valuedef{}=VDef) ->
+    #valuedef{value=Val} = check_value(S,VDef),
+    Val;
+resolve_value1(_, _, V) ->
+    V.
+
+resolve_namednumber(S, #type{def=Def}, Name) ->
+    case Def of
+	{'ENUMERATED',NameList} ->
+	    resolve_namednumber_1(S, Name, NameList);
+	{'INTEGER',NameList} ->
+	    resolve_namednumber_1(S, Name, NameList);
 	_ ->
-	    %%error({type,{asn1,{illegal_single_value_constraint,Int,SV}},S})
-	    throw({error,{asn1,{illegal_single_value_constraint,Int,SV}}})
-    end;
-intersection_of_sv1(_S,SV1,SV2) ->
-    %%error({type,{asn1,{illegal_single_value_constraint,SV1,SV2}},S}).
-    throw({error,{asn1,{illegal_single_value_constraint,SV1,SV2}}}).
+	    not_named
+    end.
 
-greatest_LB([H]) ->
-    H;
-greatest_LB(L) ->
-    greatest_LB1(lists:reverse(L)).
-greatest_LB1(['MIN',H2|_T])->
-    H2;
-greatest_LB1([H|_T]) ->
-    H.
-smallest_UB(L) ->
-    hd(L).
-
-common_set(SV1,SV2) ->
-    lists:filter(fun(X)->lists:member(X,SV1) end,SV2).
-
-is_int_in_vr(Int,{_,{'MIN','MAX'}}) when is_integer(Int) ->
-    true;
-is_int_in_vr(Int,{_,{'MIN',Ub}}) when is_integer(Int),Int =< Ub ->
-    true;
-is_int_in_vr(Int,{_,{Lb,'MAX'}}) when is_integer(Int),Int >= Lb ->
-    true;
-is_int_in_vr(Int,{_,{Lb,Ub}}) when is_integer(Int),Int >= Lb,Int =< Ub ->
-    true;
-is_int_in_vr(_,_) ->
-    false.
-    
+resolve_namednumber_1(S, Name, NameList) ->
+    try
+	NamedNumberList = check_enumerated(S, NameList),
+	{_,N} = lookup_enum_value(S, Name, NamedNumberList),
+	N
+    catch _:_ ->
+	    not_named
+    end.
+
+%%%
+%%% End of constraint handling.
+%%%
 
 check_imported(S,Imodule,Name) ->
     check_imported(S,Imodule,Name,false).
@@ -4510,18 +3757,28 @@ check_reference(S,#'Externaltypereference'{pos=Pos,module=Emod,type=Name}) ->
 	    #'Externaltypereference'{pos=Pos,module=ModName,type=Name}
     end.
 
+get_referenced_value(S, T) ->
+    case get_referenced_type(S, T) of
+	{ExtMod,#valuedef{value=#'Externalvaluereference'{}=Ref}} ->
+	    get_referenced_value(update_state(S, ExtMod), Ref);
+	{_,#valuedef{value=Val}} ->
+	    Val
+    end.
+
 get_referenced_type(S, T) ->
+    get_referenced_type(S, T, false).
+
+get_referenced_type(S, T, Recurse) ->
     case do_get_referenced_type(S, T) of
-	{_,#type{def=#'Externaltypereference'{}=ERef}} ->
-	    get_referenced_type(S, ERef);
-	{_,#type{def=#'Externalvaluereference'{}=VRef}} ->
-	    get_referenced_type(S, VRef);
+	{_,#typedef{typespec=#type{def=#'Externaltypereference'{}=ERef}}}
+	  when Recurse ->
+	    get_referenced_type(S, ERef, Recurse);
 	{_,_}=Res ->
 	    Res
     end.
 
-do_get_referenced_type(#state{parameters=Ps}=S, T0) ->
-    case match_parameters(S, T0, Ps) of
+do_get_referenced_type(S, T0) ->
+    case match_parameter(S, T0) of
 	T0 ->
 	    do_get_ref_type_1(S, T0);
 	T ->
@@ -4563,7 +3820,7 @@ get_referenced(S,Emod,Ename,Pos) ->
 	    %% May be an imported entity in module Emod or Emod may not exist
 	    case asn1_db:dbget(Emod,'MODULE') of
 		undefined ->
-		    throw({error,{asn1,{module_not_found,Emod}}});
+		    asn1_error(S, {undefined_import, Ename, Emod});
 		_ ->
 		    NewS = update_state(S,Emod),
 		    get_imported(NewS,Ename,Emod,Pos)
@@ -4593,12 +3850,11 @@ get_imported(S,Name,Module,Pos) ->
 	    parse_and_save(S,Imodule),
 	    case asn1_db:dbget(Imodule,'MODULE') of
 		undefined ->
-		    throw({error,{asn1,{module_not_found,Imodule}}});
+		    asn1_error(S, {undefined_import, Name, Module});
 		Im when is_record(Im,module) ->
 		    case is_exported(Im,Name) of
 			false ->
-			    throw({error,
-				   {asn1,{not_exported,{Im,Name}}}});
+			    asn1_error(S, {undefined_export, Name});
 			_ ->
 			    ?dbg("get_imported, is_exported ~p, ~p~n",[Imodule,Name]),
 			    get_referenced_type(S,
@@ -4611,37 +3867,6 @@ get_imported(S,Name,Module,Pos) ->
 	    get_renamed_reference(S,Name,Module)
     end.
 
-check_and_save(S,#'Externaltypereference'{module=M}=ERef,#typedef{checked=false}=TDef,Settings)
-  when S#state.mname /= M ->
-    %% This ERef is an imported type (or maybe a set.asn compilation)
-    NewS = S#state{mname=M,module=load_asn1_module(S,M),
-		   type=TDef,tname=get_datastr_name(TDef)},
-    Type=check_type(NewS,TDef,TDef#typedef.typespec),%XXX
-    CheckedTDef = TDef#typedef{checked=true,
-			       typespec=Type},
-    asn1_db:dbput(M,get_datastr_name(TDef),CheckedTDef),
-    {merged_name(S,ERef),Settings};
-check_and_save(S,#'Externaltypereference'{module=M,type=N}=Eref,
-	       #ptypedef{name=Name,args=Params} = PTDef,Settings) ->
-    %% instantiate a parameterized type
-    %% The parameterized type should be saved as a type in the module
-    %% it was instantiated.
-    NewS = S#state{mname=M,module=load_asn1_module(S,M),
-		   type=PTDef,tname=Name},
-    {Args,RestSettings} = lists:split(length(Params),Settings),
-    Type = check_type(NewS,PTDef,#type{def={pt,Eref,Args}}),
-    ERefName = new_reference_name(N),
-    ERefNew = #'Externaltypereference'{type=ERefName,module=S#state.mname},
-    NewTDef=#typedef{checked=true,name=ERefName,
-		     typespec=Type},
-    insert_once(S,parameterized_objects,{ERefName,type,NewTDef}),
-    asn1_db:dbput(S#state.mname,ERefNew#'Externaltypereference'.type,
-		  NewTDef),
-    {ERefNew,RestSettings};
-check_and_save(_S,ERef,TDef,Settings) ->
-    %% This might be a renamed type in a set of specs, so rename the ERef
-    {ERef#'Externaltypereference'{type=asn1ct:get_name_of_def(TDef)},Settings}.
-
 save_object_set_instance(S,Name,ObjSetSpec) 
   when is_record(ObjSetSpec,'ObjectSet') ->
     NewObjSet = #typedef{checked=true,name=Name,typespec=ObjSetSpec},
@@ -4708,18 +3933,14 @@ update_state(S,ModuleName) ->
 	    S;
 	_ ->
 	    parse_and_save(S,ModuleName),
-	    case asn1_db:dbget(ModuleName,'MODULE') of
-		RefedMod when is_record(RefedMod,module) ->
-		    S#state{mname=ModuleName,module=RefedMod};
-		_ -> throw({error,{asn1,{module_does_not_exist,ModuleName}}})
-	    end
+	    Mod = #module{} = asn1_db:dbget(ModuleName,'MODULE'),
+	    S#state{mname=ModuleName,module=Mod}
     end.
 
-
 get_renamed_reference(S,Name,Module) ->
     case renamed_reference(S,Name,Module) of
 	undefined ->
-	    throw({error,{asn1,{undefined_type,Name}}});
+	    asn1_error(S, {undefined, Name});
 	NewTypeName when NewTypeName =/= Name ->
 	    get_referenced1(S,Module,NewTypeName,undefined)
     end.
@@ -4770,37 +3991,49 @@ get_importmoduleoftype([I|Is],Name) ->
 get_importmoduleoftype([],_) ->
     undefined.
 		     
+match_parameters(S, Names) ->
+    [match_parameter(S, Name) || Name <- Names].
 
-match_parameters(_S,Name,[]) ->
-    Name;
+match_parameter(#state{parameters=Ps}=S, Name) ->
+    match_parameter(S, Name, Ps).
 
-match_parameters(_S,#'Externaltypereference'{type=Name},[{#'Externaltypereference'{type=Name},NewName}|_T]) ->
+match_parameter(_S, Name, []) ->
+    Name;
+match_parameter(S, {valueset,{element_set,#type{}=Ts,none}}, Ps) ->
+    match_parameter(S, {valueset,Ts}, Ps);
+match_parameter(_S, #'Externaltypereference'{type=Name},
+		[{#'Externaltypereference'{type=Name},NewName}|_T]) ->
     NewName;
-match_parameters(_S,#'Externaltypereference'{type=Name},[{{_,#'Externaltypereference'{type=Name}},NewName}|_T]) ->
+match_parameter(_S, #'Externaltypereference'{type=Name},
+		[{{_,#'Externaltypereference'{type=Name}},NewName}|_T]) ->
     NewName;
-match_parameters(_S,#'Externalvaluereference'{value=Name},[{#'Externalvaluereference'{value=Name},NewName}|_T]) ->
+match_parameter(_S, #'Externalvaluereference'{value=Name},
+		[{#'Externalvaluereference'{value=Name},NewName}|_T]) ->
     NewName;
-match_parameters(_S,#'Externalvaluereference'{value=Name},[{{_,#'Externalvaluereference'{value=Name}},NewName}|_T]) ->
+match_parameter(_S, #'Externalvaluereference'{value=Name},
+		[{{_,#'Externalvaluereference'{value=Name}},NewName}|_T]) ->
     NewName;
-match_parameters(_S,#type{def=#'Externaltypereference'{module=M,type=Name}},
-		 [{#'Externaltypereference'{module=M,type=Name},Type}]) ->
+match_parameter(_S, #type{def=#'Externaltypereference'{module=M,type=Name}},
+		[{#'Externaltypereference'{module=M,type=Name},Type}]) ->
     Type;
-match_parameters(_S,{valueset,#type{def=#'Externaltypereference'{type=Name}}},
-		 [{{_,#'Externaltypereference'{type=Name}},{valueset,#type{def=NewName}}}|_T]) ->
+match_parameter(_S, {valueset,#type{def=#'Externaltypereference'{type=Name}}},
+		[{{_,#'Externaltypereference'{type=Name}},
+		  {valueset,#type{def=NewName}}}|_T]) ->
     NewName;
-match_parameters(_S,{valueset,#type{def=#'Externaltypereference'{type=Name}}},
-		 [{{_,#'Externaltypereference'{type=Name}},
-		   NewName=#type{def=#'Externaltypereference'{}}}|_T]) ->
+match_parameter(_S, {valueset,#type{def=#'Externaltypereference'{type=Name}}},
+		[{{_,#'Externaltypereference'{type=Name}},
+		  NewName=#type{def=#'Externaltypereference'{}}}|_T]) ->
     NewName#type.def;
-match_parameters(_S,{valueset,#type{def=#'Externaltypereference'{type=Name}}},
-		 [{{_,#'Externaltypereference'{type=Name}},NewName}|_T]) ->
+match_parameter(_S, {valueset,#type{def=#'Externaltypereference'{type=Name}}},
+		[{{_,#'Externaltypereference'{type=Name}},NewName}|_T]) ->
     NewName;
 %% When a parameter is a parameterized element it has to be
 %% instantiated now!
-match_parameters(S,{valueset,T=#type{def={pt,_,_Args}}},_Parameters) ->
-    case catch check_type(S,#typedef{name=S#state.tname,typespec=T},T) of
-	pobjectsetdef ->
-
+match_parameter(S, {valueset,T=#type{def={pt,_,_Args}}}, _Ps) ->
+    try check_type(S,#typedef{name=S#state.tname,typespec=T},T) of
+	#type{def=Ts} ->
+	    Ts
+    catch pobjectsetdef ->
  	    {_,ObjRef,_Params} = T#type.def,
  	    {_,ObjDef}=get_referenced_type(S,ObjRef),
 	    %%ObjDef is a pvaluesetdef where the type field holds the class
@@ -4818,17 +4051,15 @@ match_parameters(S,{valueset,T=#type{def={pt,_,_Args}}},_Parameters) ->
 	    ObjectSet = #'ObjectSet'{class=RightClassRef,set=T},
  	    ObjSpec = check_object(S,#typedef{typespec=ObjectSet},ObjectSet),
 	    Name = list_to_atom(asn1ct_gen:list2name([get_datastr_name(ObjDef)|S#state.recordtopname])),	 
-	    save_object_set_instance(S,Name,ObjSpec);
-	pvaluesetdef -> error({pvaluesetdef,"parameterized valueset",S});
-	{error,_Reason} -> error({type,"error in parameter",S});
-	Ts when is_record(Ts,type) -> Ts#type.def
+	    save_object_set_instance(S,Name,ObjSpec)
     end;
+
 %% same as previous, only depends on order of parsing
-match_parameters(S,{valueset,{pos,{objectset,_,POSref},Args}},Parameters) ->
-    match_parameters(S,{valueset,#type{def={pt,POSref,Args}}},Parameters);
-match_parameters(S,Name, [_H|T]) ->
-    %%io:format("match_parameters(~p,~p)~n",[Name,[H|T]]),
-    match_parameters(S,Name,T).
+match_parameter(S, {valueset,{pos,{objectset,_,POSref},Args}}, Ps) ->
+    match_parameter(S, {valueset,#type{def={pt,POSref,Args}}}, Ps);
+match_parameter(S, Name, [_H|T]) ->
+    %%io:format("match_parameter(~p,~p)~n",[Name,[H|T]]),
+    match_parameter(S, Name, T).
 
 imported(S,Name) ->
     {imports,Ilist} = (S#state.module)#module.imports,
@@ -4854,7 +4085,6 @@ check_named_number_list(_S, [{_,_}|_]=NNL) ->
     NNL;
 check_named_number_list(S, NNL0) ->
     %% Check that the names are unique.
-    T = S#state.type,
     case check_unique(NNL0, 2) of
 	[] ->
 	    NNL1 = [{Id,resolve_valueref(S, Val)} || {'NamedNumber',Id,Val} <- NNL0],
@@ -4863,14 +4093,14 @@ check_named_number_list(S, NNL0) ->
 		[] ->
 		    NNL;
 		[Val|_] ->
-		    asn1_error(S, T, {value_reused,Val})
+		    asn1_error(S, {value_reused,Val})
 	    end;
 	[H|_] ->
-	    asn1_error(S, T, {namelist_redefinition,H})
+	    asn1_error(S, {namelist_redefinition,H})
     end.
 
-resolve_valueref(S, #'Externalvaluereference'{module=Mod,value=Name}) ->
-    dbget_ex(S, Mod, Name);
+resolve_valueref(S, #'Externalvaluereference'{} = T) ->
+    get_referenced_value(S, T);
 resolve_valueref(_, Val) when is_integer(Val) ->
     Val.
 
@@ -4879,7 +4109,7 @@ check_integer(S, NNL) ->
 
 check_bitstring(S, NNL0) ->
     NNL = check_named_number_list(S, NNL0),
-    _ = [asn1_error(S, S#state.type, {invalid_bit_number,Bit}) ||
+    _ = [asn1_error(S, {invalid_bit_number,Bit}) ||
 	    {_,Bit} <- NNL, Bit < 0],
     NNL.
 
@@ -4904,7 +4134,7 @@ check_type_identifier(S, Eref=#'Externaltypereference'{type=Class}) ->
 	{_,TD=#typedef{typespec=#type{def=#'Externaltypereference'{}}}} ->
 	    check_type_identifier(S, (TD#typedef.typespec)#type.def);
 	_ ->
-	    asn1_error(S, S#state.type, {illegal_instance_of,Class})
+	    asn1_error(S, {illegal_instance_of,Class})
     end.
 
 iof_associated_type(S,[]) ->
@@ -4913,12 +4143,7 @@ iof_associated_type(S,[]) ->
     case get(instance_of) of
 	undefined ->
 	    AssociateSeq = iof_associated_type1(S,[]),
-	    Tag =
-		case S#state.erule of
-		    ber ->
-			[?TAG_CONSTRUCTED(?N_INSTANCE_OF)];
-		    _ -> []
-		end,
+	    Tag = [?TAG_CONSTRUCTED(?N_INSTANCE_OF)],
 	    TypeDef=#typedef{checked=true,
 			     name='INSTANCE OF',
 			     typespec=#type{tag=Tag,
@@ -4944,16 +4169,11 @@ iof_associated_type1(S,C) ->
 	    [] -> 'ASN1_OPEN_TYPE';
 	    _ -> {typefield,'Type'}
 	end,
-    {ObjIdTag,C1TypeTag}=
-	case S#state.erule of
-	    ber ->
-		{[{'UNIVERSAL',8}],
-		 [#tag{class='UNIVERSAL',
-		       number=6,
-		       type='IMPLICIT',
-		       form=0}]};
-	    _ -> {[{'UNIVERSAL','INTEGER'}],[]}
-	end,
+    ObjIdTag = [{'UNIVERSAL',8}],
+    C1TypeTag = [#tag{class='UNIVERSAL',
+		      number=6,
+		      type='IMPLICIT',
+		      form=0}],
     TypeIdentifierRef=#'Externaltypereference'{module=ModuleName,
 					       type='TYPE-IDENTIFIER'},
     ObjectIdentifier =
@@ -4992,9 +4212,13 @@ iof_associated_type1(S,C) ->
 
 %% returns the leading attribute, the constraint of the components and
 %% the tablecinf value for the second component.
-instance_of_constraints(_,[]) ->
+instance_of_constraints(_, []) ->
     {false,[],[],[]};
-instance_of_constraints(S, [{simpletable,Type}]) ->
+instance_of_constraints(S, [{element_set,{simpletable,C},none}]) ->
+    {element_set,Type,none} = C,
+    instance_of_constraints_1(S, Type).
+
+instance_of_constraints_1(S, Type) ->
     #type{def=#'Externaltypereference'{type=Name}} = Type,
     ModuleName = S#state.mname,
     ObjectSetRef=#'Externaltypereference'{module=ModuleName,
@@ -5014,93 +4238,100 @@ instance_of_constraints(S, [{simpletable,Type}]) ->
 				     valueindex=[]},
     {TableCInf,[{simpletable,Name}],CRel,[{objfun,ObjectSetRef}]}.
 
-%% Check ENUMERATED
-%% ****************************************
-%% Check that all values are unique
-%% assign values to un-numbered identifiers
-%% check that the constraints are allowed and correct
-%% put the updated info back into database
-check_enumerated(_S,[{Name,Number}|_Rest]= NNList,_Constr) when is_atom(Name), is_integer(Number)->
-    %% already checked , just return the same list
-    NNList;
-check_enumerated(_S,{[{Name,Number}|_Rest],L}= NNList,_Constr) when is_atom(Name), is_integer(Number), is_list(L)->
-    %% already checked , contains extension marker, just return the same lists
-    NNList;
-check_enumerated(S,NamedNumberList,_Constr) ->
-    check_enum(S,NamedNumberList,[],[],[]).
-
-%% identifiers are put in Acc2
-%% returns either [{Name,Number}] or {[{Name,Number}],[{ExtName,ExtNumber}]}
-%% the latter is returned if the ENUMERATION contains EXTENSIONMARK
-check_enum(S,[{'NamedNumber',Id,Num}|T],Acc1,Acc2,Root) when is_integer(Num) ->
-    check_enum(S,T,[{Id,Num}|Acc1],Acc2,Root);
-check_enum(S,['EXTENSIONMARK'|T],Acc1,Acc2,_Root) ->
-    NewAcc2 = lists:keysort(2,Acc1),
-    NewList = enum_number(lists:reverse(Acc2),NewAcc2,0,[],[]),
-    { NewList, check_enum(S,T,[],[],enum_counts(NewList))};
-check_enum(S,[Id|T],Acc1,Acc2,Root) when is_atom(Id) ->
-    check_enum(S,T,Acc1,[Id|Acc2],Root);
-check_enum(_S,[],Acc1,Acc2,Root) ->
-    NewAcc2 = lists:keysort(2,Acc1),
-    enum_number(lists:reverse(Acc2),NewAcc2,0,[],Root).
-
-
-% assign numbers to identifiers , numbers from 0 ... but must not
-% be the same as already assigned to NamedNumbers
-enum_number(Identifiers,NamedNumbers,Cnt,Acc,[]) ->
-    enum_number(Identifiers,NamedNumbers,Cnt,Acc);
-enum_number(Identifiers,NamedNumbers,_Cnt,Acc,CountL) ->
-    enum_extnumber(Identifiers,NamedNumbers,Acc,CountL).
-
-enum_number([H|T],[{Id,Num}|T2],Cnt,Acc) when Num > Cnt ->
-    enum_number(T,[{Id,Num}|T2],Cnt+1,[{H,Cnt}|Acc]);
-enum_number([H|T],[{Id,Num}|T2],Cnt,Acc) when Num < Cnt -> % negative Num
-    enum_number(T,T2,Cnt+1,[{H,Cnt},{Id,Num}|Acc]);
-enum_number([],L2,_Cnt,Acc) ->
-    lists:append([lists:reverse(Acc),L2]);
-enum_number(L,[{Id,Num}|T2],Cnt,Acc) -> % Num == Cnt
-    enum_number(L,T2,Cnt+1,[{Id,Num}|Acc]);
-enum_number([H|T],[],Cnt,Acc) ->
-    enum_number(T,[],Cnt+1,[{H,Cnt}|Acc]).
-    
-enum_extnumber(Identifiers,NamedNumbers,Acc,[C]) ->
-    check_add_enum_numbers(NamedNumbers,[C]),
-    enum_number(Identifiers,NamedNumbers,C,Acc);
-enum_extnumber([H|T],[{Id,Num}|T2],Acc,[C|Counts]) when Num > C ->
-    enum_extnumber(T,[{Id,Num}|T2],[{H,C}|Acc],Counts);
-enum_extnumber([],L2,Acc,Cnt) ->
-    check_add_enum_numbers(L2, Cnt),
-    lists:concat([lists:reverse(Acc),L2]);
-enum_extnumber(_Identifiers,[{Id,Num}|_T2],_Acc,[C|_]) when Num < C ->
-%%    enum_extnumber(Identifiers,T2,[{Id,Num}|Acc],Counts);
-    exit({error,{asn1,"AdditionalEnumeration element with same number as root element",{Id,Num}}});
-enum_extnumber(Identifiers,[{Id,Num}|T2],Acc,[_C|Counts]) -> % Num =:= C
-    enum_extnumber(Identifiers,T2,[{Id,Num}|Acc],Counts);
-enum_extnumber([H|T],[],Acc,[C|Counts]) ->
-    enum_extnumber(T,[],[{H,C}|Acc],Counts).
-
-enum_counts([]) ->
-    [0];
-enum_counts(L) ->
-    Used=[I||{_,I}<-L],
-    AddEnumLb = lists:max(Used) + 1,
-    lists:foldl(fun(El,AccIn)->lists:delete(El,AccIn) end, 
-		lists:seq(0,AddEnumLb),
-		Used).
-check_add_enum_numbers(L, Cnt) ->
-    Max = lists:max(Cnt),
-    Fun = fun({_,N}=El) when N < Max ->
-		  case lists:member(N,Cnt) of
-		      false ->
-			  exit({error,{asn1,"AdditionalEnumeration element with same number as root element",El}});
-		      _ ->
-			  ok
-		  end;
-	     (_) ->
-		  ok
-	  end,
-    lists:foreach(Fun,L).
+%%%
+%%% Check ENUMERATED.
+%%%
 
+check_enumerated(_S, [{Name,Number}|_]=NNL)
+  when is_atom(Name), is_integer(Number) ->
+    %% Already checked.
+    NNL;
+check_enumerated(_S, {[{Name,Number}|_],L}=NNL)
+  when is_atom(Name), is_integer(Number), is_list(L) ->
+    %% Already checked (with extension).
+    NNL;
+check_enumerated(S, NNL) ->
+    check_enum_ids(S, NNL, gb_sets:empty()),
+    check_enum(S, NNL, gb_sets:empty(), []).
+
+check_enum_ids(S, [{'NamedNumber',Id,_}|T], Ids0) ->
+    Ids = check_enum_update_ids(S, Id, Ids0),
+    check_enum_ids(S, T, Ids);
+check_enum_ids(S, ['EXTENSIONMARK'|T], Ids) ->
+    check_enum_ids(S, T, Ids);
+check_enum_ids(S, [Id|T], Ids0) when is_atom(Id) ->
+    Ids = check_enum_update_ids(S, Id, Ids0),
+    check_enum_ids(S, T, Ids);
+check_enum_ids(_, [], _) ->
+    ok.
+
+check_enum(S, [{'NamedNumber',Id,N}|T], Used0, Acc) ->
+    Used = check_enum_update_used(S, Id, N, Used0),
+    check_enum(S, T, Used, [{Id,N}|Acc]);
+check_enum(S, ['EXTENSIONMARK'|Ext0], Used0, Acc0) ->
+    Acc = lists:reverse(Acc0),
+    {Root,Used,Cnt} = check_enum_number_root(Acc, Used0, 0, []),
+    Ext = check_enum_ext(S, Ext0, Used, Cnt, []),
+    {Root,Ext};
+check_enum(S, [Id|T], Used, Acc) when is_atom(Id) ->
+    check_enum(S, T, Used, [Id|Acc]);
+check_enum(_, [], Used, Acc0) ->
+    Acc = lists:reverse(Acc0),
+    {Root,_,_} = check_enum_number_root(Acc, Used, 0, []),
+    lists:keysort(2, Root).
+
+check_enum_number_root([Id|T]=T0, Used0, Cnt, Acc) when is_atom(Id) ->
+    case gb_sets:is_element(Cnt, Used0) of
+	false ->
+	    Used = gb_sets:insert(Cnt, Used0),
+	    check_enum_number_root(T, Used, Cnt+1, [{Id,Cnt}|Acc]);
+	true ->
+	    check_enum_number_root(T0, Used0, Cnt+1, Acc)
+    end;
+check_enum_number_root([H|T], Used, Cnt, Acc) ->
+    check_enum_number_root(T, Used, Cnt, [H|Acc]);
+check_enum_number_root([], Used, Cnt, Acc) ->
+    {lists:keysort(2, Acc),Used,Cnt}.
+
+check_enum_ext(S, [{'NamedNumber',Id,N}|T], Used0, C, Acc) ->
+    Used = check_enum_update_used(S, Id, N, Used0),
+    if
+	N < C ->
+	    asn1_error(S, {enum_not_ascending,Id,N,C-1});
+	true ->
+	    ok
+    end,
+    check_enum_ext(S, T, Used, N+1, [{Id,N}|Acc]);
+check_enum_ext(S, [Id|T]=T0, Used0, C, Acc) when is_atom(Id) ->
+    case gb_sets:is_element(C, Used0) of
+	true ->
+	    check_enum_ext(S, T0, Used0, C+1, Acc);
+	false ->
+	    Used = gb_sets:insert(C, Used0),
+	    check_enum_ext(S, T, Used, C+1, [{Id,C}|Acc])
+    end;
+check_enum_ext(_, [], _, _, Acc) ->
+    lists:keysort(2, Acc).
+
+check_enum_update_ids(S, Id, Ids) ->
+    case gb_sets:is_element(Id, Ids) of
+	false ->
+	    gb_sets:insert(Id, Ids);
+	true ->
+	    asn1_error(S, {enum_illegal_redefinition,Id})
+    end.
+
+check_enum_update_used(S, Id, N, Used) ->
+    case gb_sets:is_element(N, Used) of
+	false ->
+	    gb_sets:insert(N, Used);
+	true ->
+	    asn1_error(S, {enum_reused_value,Id,N})
+    end.
+
+%%%
+%%% End of ENUMERATED checking.
+%%%
 
 check_boolean(_S,_Constr) ->
     ok.
@@ -5145,7 +4376,7 @@ check_sequence(S,Type,Comps)  ->
 	    CompListTuple = complist_as_tuple(NewComps4),
 	    {CRelInf,CompListTuple};
 	Dupl ->
-	    throw({error,{asn1,{duplicate_components,Dupl}}})
+	    asn1_error(S, {duplicate_identifier, error_value(hd(Dupl))})
     end.
 
 complist_as_tuple(CompList) ->
@@ -5155,8 +4386,6 @@ complist_as_tuple([#'EXTENSIONMARK'{}|T], Acc, Ext, Acc2, root) ->
     complist_as_tuple(T, Acc, Ext, Acc2, ext);
 complist_as_tuple([#'EXTENSIONMARK'{}|T], Acc, Ext, Acc2, ext) ->
     complist_as_tuple(T, Acc, Ext, Acc2, root2);
-complist_as_tuple([#'EXTENSIONMARK'{}|_T], _Acc, _Ext, _Acc2, root2) ->
-    throw({error,{asn1,{too_many_extension_marks}}});
 complist_as_tuple([C|T], Acc, Ext, Acc2, root) ->
     complist_as_tuple(T, [C|Acc], Ext, Acc2, root);
 complist_as_tuple([C|T], Acc, Ext, Acc2, ext) ->
@@ -5199,11 +4428,11 @@ expand_components2(S,{_,PT={pt,_,_}}) ->
 expand_components2(S,{_,OCFT = #'ObjectClassFieldType'{}}) ->
     UncheckedType = #type{def=OCFT},
     Type = check_type(S,#typedef{typespec=UncheckedType},UncheckedType),
-    expand_components2(S,{undefined,oCFT_def(S,Type)});
+    expand_components2(S, {undefined,ocft_def(Type)});
 expand_components2(S,{_,ERef}) when is_record(ERef,'Externaltypereference') ->
     expand_components2(S,get_referenced_type(S,ERef));
-expand_components2(_S,Err) ->
-    throw({error,{asn1,{illegal_COMPONENTS_OF,Err}}}).
+expand_components2(S,{_, What}) ->
+    asn1_error(S, {illegal_COMPONENTS_OF, error_value(What)}).
 
 take_only_rootset([])->
     [];
@@ -5252,7 +4481,7 @@ check_sequenceof(S,Type,Component) when is_record(Component,type) ->
 
 check_set(S,Type,Components) ->
     {TableCInf,NewComponents} = check_sequence(S,Type,Components),
-    check_distinct_tags(NewComponents,[]),
+    check_unique_tags(S, collect_components(NewComponents), []),
     case {lists:member(der,S#state.options),S#state.erule} of
 	{true,_} ->
 	    {Sorted,SortedComponents} = sort_components(der,S,NewComponents),
@@ -5264,35 +4493,21 @@ check_set(S,Type,Components) ->
 	    {false,TableCInf,NewComponents}
     end.
 
-
-%% check that all tags are distinct according to X.680 26.3
-check_distinct_tags({C1,C2,C3},Acc) when is_list(C1),is_list(C2),is_list(C3) ->
-    check_distinct_tags(C1++C2++C3,Acc);
-check_distinct_tags({C1,C2},Acc) when is_list(C1),is_list(C2) ->
-    check_distinct_tags(C1++C2,Acc);
-check_distinct_tags([#'ComponentType'{tags=[T]}|Cs],Acc) ->
-    check_distinct(T,Acc),
-    check_distinct_tags(Cs,[T|Acc]);
-check_distinct_tags([C=#'ComponentType'{tags=[T|Ts]}|Cs],Acc) ->
-    check_distinct(T,Acc),
-    check_distinct_tags([C#'ComponentType'{tags=Ts}|Cs],[T|Acc]);
-check_distinct_tags([#'ComponentType'{tags=[]}|_Cs],_Acc) ->
-    throw({error,"Not distinct tags in SET"});
-check_distinct_tags([],_) ->
-    ok.
-check_distinct(T,Acc) ->
-    case lists:member(T,Acc) of
-	true ->
-	    throw({error,"Not distinct tags in SET"});
-	_ -> ok
-    end.
+collect_components({C1,C2,C3}) ->
+    collect_components(C1++C2++C3);
+collect_components({C1,C2}) ->
+    collect_components(C1++C2);
+collect_components(Cs) ->
+    %% Assert that tags are not empty
+    [] = [EmptyTag || EmptyTag = #'ComponentType'{tags=[]} <- Cs],
+    Cs.
 
 %% sorting in canonical order according to X.680 8.6, X.691 9.2
 %% DER: all components shall be sorted in canonical order.
 %% PER: only root components shall be sorted in canonical order. The
 %%      extension components shall remain in textual order.
 %%
-sort_components(der,S=#state{tname=TypeName},Components) ->
+sort_components(der, S, Components) ->
     {R1,Ext,R2} = extension(textual_order(Components)),
     CompsList = case Ext of
 		    noext -> R1;
@@ -5300,88 +4515,34 @@ sort_components(der,S=#state{tname=TypeName},Components) ->
 		end,
     case {untagged_choice(S,CompsList),Ext} of
 	{false,noext} ->
-	    {true,sort_components1(S,TypeName,CompsList,[],[],[],[])};
+	    {true,sort_components1(CompsList)};
 	{false,_} ->
-	    {true,{sort_components1(S,TypeName,CompsList,[],[],[],[]), []}};
+	    {true,{sort_components1(CompsList),[]}};
 	{true,noext} ->
 	    %% sort in run-time
 	    {dynamic,R1};
 	_ ->
 	    {dynamic,{R1, Ext, R2}}
     end;
-sort_components(per,S=#state{tname=TypeName},Components) ->
+sort_components(per, S, Components) ->
     {R1,Ext,R2} = extension(textual_order(Components)),
     Root = tag_untagged_choice(S,R1++R2),
     case Ext of
 	noext ->
-	    {true,sort_components1(S,TypeName,Root,[],[],[],[])};
+	    {true,sort_components1(Root)};
 	_ ->
-	    {true,{sort_components1(S,TypeName,Root,[],[],[],[]),
-		   Ext}}
+	    {true,{sort_components1(Root),Ext}}
     end.
 
-sort_components1(S,TypeName,[C=#'ComponentType'{tags=[{'UNIVERSAL',_}|_R]}|Cs],
-		 UnivAcc,ApplAcc,ContAcc,PrivAcc) ->
-    sort_components1(S,TypeName,Cs,[C|UnivAcc],ApplAcc,ContAcc,PrivAcc);
-sort_components1(S,TypeName,[C=#'ComponentType'{tags=[{'APPLICATION',_}|_R]}|Cs],
-		 UnivAcc,ApplAcc,ContAcc,PrivAcc) ->
-    sort_components1(S,TypeName,Cs,UnivAcc,[C|ApplAcc],ContAcc,PrivAcc);
-sort_components1(S,TypeName,[C=#'ComponentType'{tags=[{'CONTEXT',_}|_R]}|Cs],
-		 UnivAcc,ApplAcc,ContAcc,PrivAcc) ->
-    sort_components1(S,TypeName,Cs,UnivAcc,ApplAcc,[C|ContAcc],PrivAcc);
-sort_components1(S,TypeName,[C=#'ComponentType'{tags=[{'PRIVATE',_}|_R]}|Cs],
-		 UnivAcc,ApplAcc,ContAcc,PrivAcc) ->
-    sort_components1(S,TypeName,Cs,UnivAcc,ApplAcc,ContAcc,[C|PrivAcc]);
-sort_components1(S,TypeName,[],UnivAcc,ApplAcc,ContAcc,PrivAcc) ->
-    I = #'ComponentType'.tags,
-    ascending_order_check(S,TypeName,sort_universal_type(UnivAcc)) ++
-	ascending_order_check(S,TypeName,lists:keysort(I,ApplAcc)) ++
-	ascending_order_check(S,TypeName,lists:keysort(I,ContAcc)) ++
-	ascending_order_check(S,TypeName,lists:keysort(I,PrivAcc)).
-
-ascending_order_check(S,TypeName,Components) ->
-    ascending_order_check1(S,TypeName,Components),
-    Components.
-
-ascending_order_check1(S,TypeName,
-		       [C1 = #'ComponentType'{tags=[{_,T}|_]},
-			C2 = #'ComponentType'{tags=[{_,T}|_]}|Rest]) ->
-    asn1ct:warning("Indistinct tag ~p in SET ~p, components ~p and ~p~n",
-		   [T,TypeName,C1#'ComponentType'.name,C2#'ComponentType'.name],S,
-		   "Indistinct tag in SET"),
-    ascending_order_check1(S,TypeName,[C2|Rest]);
-ascending_order_check1(S,TypeName,
-		       [C1 = #'ComponentType'{tags=[{'UNIVERSAL',T1}|_]},
-			C2 = #'ComponentType'{tags=[{'UNIVERSAL',T2}|_]}|Rest]) ->
-    case (decode_type(T1) == decode_type(T2)) of
-	true ->
-	    asn1ct:warning("Indistinct tags ~p and ~p in"
-			   " SET ~p, components ~p and ~p~n",
-			   [T1,T2,TypeName,C1#'ComponentType'.name,
-			    C2#'ComponentType'.name],S,
-			   "Indistinct tags and in SET"),
-	    ascending_order_check1(S,TypeName,[C2|Rest]);
-	_ ->
-	    ascending_order_check1(S,TypeName,[C2|Rest])
-    end;
-ascending_order_check1(S,N,[_|Rest]) ->
-    ascending_order_check1(S,N,Rest);
-ascending_order_check1(_,_,[]) ->
-    ok.
-    
-sort_universal_type(Components) ->
-    List = lists:map(fun(C) ->
-			     #'ComponentType'{tags=[{_,T}|_]} = C,
-			     {decode_type(T),C}
-		     end,
-		     Components),
-    SortedList = lists:keysort(1,List),
-    lists:map(fun(X)->element(2,X) end,SortedList).
-
-decode_type(I) when is_integer(I) ->
-    I;
-decode_type(T) ->
-    asn1ct_gen_ber_bin_v2:decode_type(T).
+sort_components1(Cs0) ->
+    Cs1 = [{tag_key(Tag),C} || #'ComponentType'{tags=[Tag|_]}=C <- Cs0],
+    Cs = lists:sort(Cs1),
+    [C || {_,C} <- Cs].
+
+tag_key({'UNIVERSAL',Tag}) ->   {0,Tag};
+tag_key({'APPLICATION',Tag}) -> {1,Tag};
+tag_key({'CONTEXT',Tag}) ->     {2,Tag};
+tag_key({'PRIVATE',Tag}) ->     {3,Tag}.
 
 untagged_choice(_S,[#'ComponentType'{typespec=#type{tag=[],def={'CHOICE',_}}}|_Rest]) ->
     true;
@@ -5477,35 +4638,43 @@ check_selectiontype(S,Name,#type{def=Eref})
     {RefMod,TypeDef} = get_referenced_type(S,Eref),
     NewS = S#state{module=load_asn1_module(S,RefMod),
 		   mname=RefMod,
-		   type=TypeDef,
 		   tname=get_datastr_name(TypeDef)},
     check_selectiontype2(NewS,Name,TypeDef);
 check_selectiontype(S,Name,Type=#type{def={pt,_,_}}) ->
-    TName =
-	case S#state.recordtopname of
-	    [] ->
-		S#state.tname;
-	    N -> N
-	end,
+    TName = case S#state.recordtopname of
+		[] -> S#state.tname;
+		N -> N
+	    end,
     TDef = #typedef{name=TName,typespec=Type},
     check_selectiontype2(S,Name,TDef);
-check_selectiontype(S,Name,Type) ->
-    Msg = lists:flatten(io_lib:format("SelectionType error: ~w < ~w must be a reference to a CHOICE.",[Name,Type])),
-    error({type,Msg,S}).
+check_selectiontype(S, _Name, Type) ->
+    asn1_error(S, {illegal_choice_type, error_value(Type)}).
 
 check_selectiontype2(S,Name,TypeDef) ->
     NewS = S#state{recordtopname=get_datastr_name(TypeDef)},
-    CheckedType = check_type(NewS,TypeDef,TypeDef#typedef.typespec),
-    Components = get_choice_components(S,CheckedType#type.def),
-    case lists:keysearch(Name,#'ComponentType'.name,Components) of
-	{value,C} -> 
-	    %% The selected type will have the tag of the selected type.
-	    _T = C#'ComponentType'.typespec;
-%	    T#type{tag=def_to_tag(NewS,T#type.def)};
-	_ -> 
-	    Msg = lists:flatten(io_lib:format("error checking SelectionType: ~w~n",[Name])),
-	    error({type,Msg,S})
+    Components =
+	try
+	    CheckedType = check_type(NewS,TypeDef,TypeDef#typedef.typespec),
+	    get_choice_components(S,CheckedType#type.def)
+	catch error:_ ->
+		asn1_error(S, {illegal_choice_type, error_value(TypeDef)})
+	end,
+    case lists:keyfind(Name, #'ComponentType'.name, Components) of
+	#'ComponentType'{typespec=TS} -> TS;
+	false -> asn1_error(S, {illegal_id, error_value(Name)})
     end.
+
+
+get_choice_components(_S,{'CHOICE',Components}) when is_list(Components)->
+    Components;
+get_choice_components(_S,{'CHOICE',{C1,C2}}) when is_list(C1),is_list(C2) ->
+    C1++C2;
+get_choice_components(S,ERef=#'Externaltypereference'{}) ->
+    {_RefMod,TypeDef}=get_referenced_type(S,ERef),
+    #typedef{typespec=TS} = TypeDef,
+    get_choice_components(S,TS#type.def).
+
+
 	    
 check_restrictedstring(_S,_Def,_Constr) ->
     ok.
@@ -5538,7 +4707,7 @@ check_choice(S,Type,Components) when is_list(Components) ->
 	    check_unique_tags(S, NewComps3),
 	    complist_as_tuple(NewComps3);
 	Dupl ->
-	    throw({error,{asn1,{duplicate_choice_alternatives,Dupl}}})
+	    asn1_error(S, {duplicate_identifier,error_value(hd(Dupl))})
     end;
 check_choice(_S,_,[]) -> 
     [].
@@ -5635,25 +4804,30 @@ check_unique_tags(S,C) ->
     case (S#state.module)#module.tagdefault of
 	'AUTOMATIC' ->
 	    case any_manual_tag(C) of
-		false -> true;
-		_ -> collect_and_sort_tags(C,[])
+		false ->
+		    true;
+		true ->
+		    check_unique_tags(S, C, [])
 	    end;
 	_ ->
-    	    collect_and_sort_tags(C,[])
+	    check_unique_tags(S, C, [])
     end.
 
-collect_and_sort_tags([C|Rest],Acc) when is_record(C,'ComponentType') ->
-    collect_and_sort_tags(Rest,C#'ComponentType'.tags ++ Acc);
-collect_and_sort_tags([_|Rest],Acc) ->
-    collect_and_sort_tags(Rest,Acc);
-collect_and_sort_tags([],Acc) ->
-    {Dupl,_}= lists:mapfoldl(fun(El,El)->{{dup,El},El};(El,_Prev)-> {El,El} end,notag,lists:sort(Acc)),
-    Dupl2 = [Dup|| {dup,Dup} <- Dupl],
-    if 
-	length(Dupl2) > 0 ->
-	    throw({error,{asn1,{duplicates_of_the_tags,Dupl2}}});
-	true ->
-	    true
+check_unique_tags(S, [#'ComponentType'{name=Name,tags=Tags0}|T], Acc) ->
+    Tags = [{Tag,Name} || Tag <- Tags0],
+    check_unique_tags(S, T, Tags ++ Acc);
+check_unique_tags(S, [_|T], Acc) ->
+    check_unique_tags(S, T, Acc);
+check_unique_tags(S, [], Acc) ->
+    R0 = sofs:relation(Acc),
+    R1 = sofs:relation_to_family(R0),
+    R2 = sofs:to_external(R1),
+    Dup = [Els || {_,[_,_|_]=Els} <- R2],
+    case Dup of
+	[] ->
+	    ok;
+	[FirstDupl|_] ->
+	    asn1_error(S, {duplicate_tags,FirstDupl})
     end.
 
 check_unique(L,Pos) ->
@@ -5795,28 +4969,18 @@ componentrelation_leadingattr(S,[C= #'ComponentType'{}|Cs],CompList,Acc,CompAcc)
 			{[],C};
 		    [{ObjSet,Attr,N,ClassDef,_Path,ValueIndex}|_NewRest] ->
 			OS = object_set_mod_name(S,ObjSet),
-			UniqueFieldName = 
-			    case (catch get_unique_fieldname(S,#classdef{typespec=ClassDef})) of
-				{error,'__undefined_',_} ->
-				    no_unique;
-				{asn1,Msg,_} ->
-				    error({type,Msg,S});
-				{'EXIT',Msg} ->
-				    error({type,{internal_error,Msg},S});
-				{Other,_} -> Other
-			    end,
-%			UsedFieldName = get_used_fieldname(S,Attr,STList),
+			UniqFN = get_unique_fieldname(S,
+						      #classdef{typespec=ClassDef}),
 			%% Res should be done differently: even though
 			%% a unique field name exists it is not
 			%% certain that the ObjectClassFieldType of
 			%% the simple table constraint picks that
 			%% class field.
 			Res = #simpletableattributes{objectsetname=OS,
-%%						     c_name=asn1ct_gen:un_hyphen_var(Attr),
 						     c_name=Attr,
 						     c_index=N,
-						     usedclassfield=UniqueFieldName,
-						     uniqueclassfield=UniqueFieldName,
+						     usedclassfield=UniqFN,
+						     uniqueclassfield=UniqFN,
 						     valueindex=ValueIndex},
 			{[Res],C#'ComponentType'{typespec=NewTSpec}}
 		end;
@@ -5869,7 +5033,7 @@ remove_doubles1(El,L) ->
 	NewL -> remove_doubles1(El,NewL)
     end.
 
-%% get_simple_table_info searches the commponents Cs by the path from
+%% get_simple_table_info searches the components Cs by the path from
 %% an at-list (third argument), and follows into a component of it if
 %% necessary, to get information needed for code generating.
 %%
@@ -5884,32 +5048,35 @@ remove_doubles1(El,L) ->
 % %% at least one step below the outermost level, i.e. the leading
 % %% information shall be on a sub level. 2) They don't have any common
 % %% path.
-get_simple_table_info(S,Cs,[AtList|Rest]) ->
-    [get_simple_table_info1(S,Cs,AtList,[])|get_simple_table_info(S,Cs,Rest)];
-get_simple_table_info(_,_,[]) ->
-    [].
-get_simple_table_info1(S,Cs,[Cname|Cnames],Path) when is_list(Cs) ->
-    case lists:keysearch(Cname,#'ComponentType'.name,Cs) of
-	{value,C} ->
-	    get_simple_table_info1(S,C,Cnames,[Cname|Path]);
-        _ ->
-	    error({type,"Missing expected simple table constraint",S})
-    end;
-get_simple_table_info1(S,#'ComponentType'{typespec=TS},[],Path) ->
-    %% In this component there must be a simple table constraint
-    %% o.w. the asn1 code is wrong.
-    #type{def=OCFT,constraint=Cnstr} = TS,
-    case constraint_member(simpletable,Cnstr) of
-	{true,{simpletable,_OSRef}} ->
-	    simple_table_info(S,OCFT,Path);
-	_ ->
-	    error({type,{"missing expected simple table constraint",
-			 Cnstr},S})
+get_simple_table_info(S, Cs, AtLists) ->
+    [get_simple_table_info1(S, Cs, AtList, []) || AtList <- AtLists].
+
+get_simple_table_info1(S, Cs, [Cname|Cnames], Path) ->
+    #'ComponentType'{} = C =
+	lists:keyfind(Cname, #'ComponentType'.name, Cs),
+    get_simple_table_info2(S, C, Cnames, [Cname|Path]).
+
+get_simple_table_info2(S, #'ComponentType'{name=Name,typespec=TS}, [], Path) ->
+    OCFT = simple_table_get_ocft(S, Name, TS),
+    case lists:keymember(simpletable, 1, TS#type.constraint) of
+	true ->
+	    simple_table_info(S, OCFT, Path);
+	false ->
+	    asn1_error(S, {missing_table_constraint,Name})
     end;
-get_simple_table_info1(S,#'ComponentType'{typespec=TS},Cnames,Path) ->
+get_simple_table_info2(S, #'ComponentType'{typespec=TS}, Cnames, Path) ->
     Components = get_atlist_components(TS#type.def),
-    get_simple_table_info1(S,Components,Cnames,Path).
-
+    get_simple_table_info1(S, Components, Cnames, Path).
+
+simple_table_get_ocft(_, _, #type{def=#'ObjectClassFieldType'{}=OCFT}) ->
+    OCFT;
+simple_table_get_ocft(S, Component, #type{constraint=Constr}) ->
+    case lists:keyfind(ocft, 1, Constr) of
+	{ocft,OCFT} ->
+	    OCFT;
+	false ->
+	    asn1_error(S, {missing_ocft,Component})
+    end.
 
 simple_table_info(S,#'ObjectClassFieldType'{classname=ClRef,
 					    class=ObjectClass,
@@ -5932,19 +5099,8 @@ simple_table_info(S,#'ObjectClassFieldType'{classname=ClRef,
 		CDef;
 	    _ -> #classdef{typespec=ObjectClass}
 	end,
-    UniqueName =
-	case (catch get_unique_fieldname(S,ClassDef)) of
-	    {error,'__undefined_',_} -> no_unique;
-	    {asn1,Msg,_} ->
-		error({type,Msg,S});
-	    {'EXIT',Msg} ->
-		error({type,{internal_error,Msg},S});
-	    {Other,_} -> Other
-	end,
-    {lists:reverse(Path),ObjectClassFieldName,UniqueName};
-simple_table_info(S,Type,_) ->
-    error({type,{"the type referenced by a componentrelation constraint must be a ObjectClassFieldType",Type},S}).
-
+    UniqueName = get_unique_fieldname(S, ClassDef),
+    {lists:reverse(Path),ObjectClassFieldName,UniqueName}.
 
 %% any_component_relation searches for all component relation
 %% constraints that refers to the actual level and returns a list of
@@ -5958,9 +5114,8 @@ simple_table_info(S,Type,_) ->
 %% is found to check the validity of the at-list.
 any_component_relation(S,[#'ComponentType'{name=CName,typespec=Type}|Cs],CNames,NamePath,Acc) ->
     CRelPath =
-	case constraint_member(componentrelation,Type#type.constraint) of
-%%	    [{componentrelation,_,AtNotation}] ->
-	    {true,{_,_,AtNotation}} ->
+	case lists:keyfind(componentrelation, 1, Type#type.constraint) of
+	    {_,_,AtNotation} ->
 		%% Found component relation constraint, now check
 		%% whether this constraint is relevant for the level
 		%% where the search started
@@ -5969,7 +5124,7 @@ any_component_relation(S,[#'ComponentType'{name=CName,typespec=Type}|Cs],CNames,
 		%% simple table constraint from where the component
 		%% relation is found.
 		evaluate_atpath(S,NamePath,CNames,AtNot);
-	    _ ->
+	    false ->
 		[]
 	end,
     InnerAcc =
@@ -5991,11 +5146,11 @@ any_component_relation(S,[#'ComponentType'{name=CName,typespec=Type}|Cs],CNames,
     any_component_relation(S,Cs,CNames,NamePath,InnerAcc++CRelPath++Acc);
 any_component_relation(S,Type,CNames,NamePath,Acc) when is_record(Type,type) ->
     CRelPath =
-	case constraint_member(componentrelation,Type#type.constraint) of
-	    {true,{_,_,AtNotation}} ->
+	case lists:keyfind(componentrelation, 1, Type#type.constraint) of
+	    {_,_,AtNotation} ->
 		AtNot = extract_at_notation(AtNotation),
 		evaluate_atpath(S,NamePath,CNames,AtNot);
-	    _ ->
+	    false ->
 		[]
 	end,
     InnerAcc =
@@ -6017,15 +5172,6 @@ any_component_relation(S,['ExtensionAdditionGroupEnd'|Cs],CNames,NamePath,Acc) -
 any_component_relation(_,[],_,_,Acc) ->
     Acc.
 
-constraint_member(componentrelation,[CRel={componentrelation,_,_}|_Rest]) ->
-    {true,CRel};
-constraint_member(simpletable,[ST={simpletable,_}|_Rest]) ->
-    {true,ST};
-constraint_member(Key,[_H|T]) ->
-    constraint_member(Key,T);
-constraint_member(_,[]) ->
-    false.
-    
 %% evaluate_atpath/4 finds out whether the at notation refers to the
 %% search level. The list of referenced names in the AtNot list shall
 %% begin with a name that exists on the level it refers to. If the
@@ -6059,9 +5205,7 @@ evaluate_atpath(S=#state{abscomppath=TopPath},NamePath,Cnames,{outermost,AtPath=
 	{_,[H|_T]} ->
 	    case lists:member(H,Cnames) of
 		true -> [AtPathBelowTop];
-		_ -> 
-		 %% error({type,{asn1,"failed to analyze at-path",AtPath},S})
-		    throw({type,{asn1,"failed to analyze at-path",AtPath},S})
+		_ -> asn1_error(S, {invalid_at_path, AtPath})
 	    end
     end;
 evaluate_atpath(_,_,_,_) ->
@@ -6098,23 +5242,8 @@ tuple2complist({R1,E,R2}) ->
 tuple2complist(List) when is_list(List) ->
     List.
 
-get_choice_components(_S,{'CHOICE',Components}) when is_list(Components)->
-    Components;
-get_choice_components(_S,{'CHOICE',{C1,C2}}) when is_list(C1),is_list(C2) ->
-    C1++C2;
-get_choice_components(S,ERef=#'Externaltypereference'{}) ->
-    {_RefMod,TypeDef}=get_referenced_type(S,ERef),
-    #typedef{typespec=TS} = TypeDef,
-    get_choice_components(S,TS#type.def).
-
-extract_at_notation([{Level,[#'Externalvaluereference'{value=Name}|Rest]}]) ->
-    {Level,[Name|extract_at_notation1(Rest)]};
-extract_at_notation(At) ->
-    exit({error,{asn1,{at_notation,At}}}).
-extract_at_notation1([#'Externalvaluereference'{value=Name}|Rest]) ->
-    [Name|extract_at_notation1(Rest)];
-extract_at_notation1([]) ->
-    [].
+extract_at_notation([{Level,ValueRefs}]) ->
+    {Level,[Name || #'Externalvaluereference'{value=Name} <- ValueRefs]}.
     
 %% componentrelation1/1 identifies all componentrelation constraints
 %% that exist in C or in the substructure of C. Info about the found
@@ -6133,8 +5262,8 @@ componentrelation1(S,C = #type{def=Def,constraint=Constraint,tablecinf=TCI},
     Ret =
 %	case Constraint of
 %	    [{componentrelation,{_,_,ObjectSet},AtList}|_Rest] ->
-	case constraint_member(componentrelation,Constraint) of
-	    {true,{_,{_,_,ObjectSet},AtList}} ->
+	case lists:keyfind(componentrelation, 1, Constraint) of
+	    {_,{_,_,ObjectSet},AtList} ->
 		[{_,AL=[#'Externalvaluereference'{}|_R1]}|_R2] = AtList,
 		%% Note: if Path is longer than one,i.e. it is within
 		%% an inner type of the actual level, then the only
@@ -6145,7 +5274,7 @@ componentrelation1(S,C = #type{def=Def,constraint=Constraint,tablecinf=TCI},
 		    lists:map(fun(#'Externalvaluereference'{value=V})->V end,
 			      AL),
 		{[{ObjectSet,AtPath,ClassDef,Path}],Def};
-	    _ ->
+	    false ->
 		%% check the inner type of component
 		innertype_comprel(S,Def,Path)
 	end,
@@ -6219,10 +5348,8 @@ componentlist_comprel(_,[],Acc,_,NewCL) ->
 
 innertype_comprel1(S,T = #type{def=Def,constraint=Cons,tablecinf=TCI},Path) ->
     Ret =
-%	case Cons of
-%	    [{componentrelation,{_,_,ObjectSet},AtList}|_Rest] ->
-	case constraint_member(componentrelation,Cons) of
-	    {true,{_,{_,_,ObjectSet},AtList}} ->
+	case lists:keyfind(componentrelation, 1, Cons) of
+	    {_,{_,_,ObjectSet},AtList} ->
 		%% This AtList must have an "outermost" at sign to be
 		%% relevent here.
 		[{_,AL=[#'Externalvaluereference'{value=_Attr}|_R1]}|_R2] 
@@ -6233,7 +5360,7 @@ innertype_comprel1(S,T = #type{def=Def,constraint=Cons,tablecinf=TCI},Path) ->
 		    lists:map(fun(#'Externalvaluereference'{value=V})->V end,
 			      AL),
 		[{ObjectSet,AtPath,ClassDef,Path}];
-	    _ ->
+	    false ->
 		innertype_comprel(S,Def,Path)
 	end,
     case Ret of
@@ -6301,8 +5428,7 @@ value_match(S,#'ComponentType'{typespec=Type},Name,[At|Ats],Acc) ->
     InnerType = asn1ct_gen:get_inner(Type#type.def),
     Components =
 	case get_atlist_components(Type#type.def) of
-	    [] -> error({type,{asn1,"element in at list must be a "
-			       "SEQUENCE, SET or CHOICE.",Name},S});
+	    [] -> asn1_error(S, {invalid_element, Name});
 	    Comps -> Comps
 	end,
     {Index,ValueIndex} = component_value_index(S,InnerType,At,Components),
@@ -6322,29 +5448,27 @@ component_index1(_S,Name,[#'ComponentType'{name=Name}|_Cs],N) ->
 component_index1(S,Name,[_C|Cs],N) ->
     component_index1(S,Name,Cs,N+1);
 component_index1(S,Name,[],_) ->
-    error({type,{asn1,"component of at-list was not"
-		 " found in substructure",Name},S}).
+    asn1_error(S, {invalid_at_list, Name}).
 
-get_unique_fieldname(_S,ClassDef) when is_record(ClassDef,classdef) ->
-%%    {_,Fields,_} = ClassDef#classdef.typespec,
-    Fields = (ClassDef#classdef.typespec)#objectclass.fields,
-    get_unique_fieldname1(Fields,[]);
+get_unique_fieldname(S, #classdef{typespec=TS}) ->
+    Fields = TS#objectclass.fields,
+    get_unique_fieldname1(S, Fields, []);
 get_unique_fieldname(S,#typedef{typespec=#type{def=ClassRef}}) ->
     %% A class definition may be referenced as
     %% REFED-CLASS ::= DEFINED-CLASS and then REFED-CLASS is a typedef
     {_M,ClassDef} = get_referenced_type(S,ClassRef),
     get_unique_fieldname(S,ClassDef).
 
-get_unique_fieldname1([],[]) ->
-    throw({error,'__undefined_',[]});
-get_unique_fieldname1([],[Name]) ->
-    Name;
-get_unique_fieldname1([],Acc) ->
-    throw({asn1,'only one UNIQUE field is allowed in CLASS',Acc});
-get_unique_fieldname1([{fixedtypevaluefield,Name,_,'UNIQUE',Opt}|Rest],Acc) ->
-    get_unique_fieldname1(Rest,[{Name,Opt}|Acc]);
-get_unique_fieldname1([_H|T],Acc) ->
-    get_unique_fieldname1(T,Acc).
+get_unique_fieldname1(S, [{fixedtypevaluefield,Name,_,'UNIQUE',Opt}|T], Acc) ->
+    get_unique_fieldname1(S, T, [{Name,Opt}|Acc]);
+get_unique_fieldname1(S, [_|T], Acc) ->
+    get_unique_fieldname1(S, T, Acc);
+get_unique_fieldname1(S, [], Acc) ->
+    case Acc of
+	[] -> no_unique;
+	[Name] -> Name;
+	[_|_] -> asn1_error(S, multiple_uniqs)
+    end.
 
 get_tableconstraint_info(S,Type,{CheckedTs,EComps,CheckedTs2}) ->
     {get_tableconstraint_info(S,Type,CheckedTs,[]),
@@ -6400,31 +5524,8 @@ get_tableconstraint_info(S,Type,[C|Cs],Acc) ->
 
 get_referenced_fieldname([{_,FirstFieldname}]) ->
     {FirstFieldname,[]};
-get_referenced_fieldname([{_,FirstFieldname}|Rest]) ->
-    {FirstFieldname,lists:map(fun(X)->element(2,X) end,Rest)};
-get_referenced_fieldname(Def={FieldName,RestFieldName}) when is_atom(FieldName),is_list(RestFieldName)->
-    Def;
-get_referenced_fieldname(Def) ->
-    {no_type,Def}.
-
-%% get_ObjectClassFieldType extracts the type from the chain of
-%% objects that leads to a final type.
-get_ObjectClassFieldType(S,ERef,PrimFieldNameList) when
-  is_record(ERef,'Externaltypereference') ->
-    {MName,Type} = get_referenced_type(S,ERef),
-    NewS = update_state(S#state{type=Type,
-		   tname=ERef#'Externaltypereference'.type},MName),
-    ClassSpec = check_class(NewS,Type),
-    Fields = ClassSpec#objectclass.fields,
-    get_ObjectClassFieldType(S,Fields,PrimFieldNameList);
-get_ObjectClassFieldType(S,Fields,L=[_PrimFieldName1|_Rest]) ->
-    check_PrimitiveFieldNames(S,Fields,L),
-    get_OCFType(S,Fields,L);
-get_ObjectClassFieldType(S,ERef,{FieldName,Rest}) ->
-    get_ObjectClassFieldType(S,ERef,Rest ++ [FieldName]).
-
-check_PrimitiveFieldNames(_S,_Fields,_) ->
-    ok.
+get_referenced_fieldname([{_,FirstFieldname}|T]) ->
+    {FirstFieldname,[element(2, X) || X <- T]}.
 
 %% get_ObjectClassFieldType_classdef gets the def of the class of the
 %% ObjectClassFieldType, i.e. the objectclass record. If the type has
@@ -6445,15 +5546,13 @@ get_OCFType(S,Fields,[PrimFieldName|Rest]) ->
 	    {fixedtypevaluefield,PrimFieldName,Type};
 	{value,{objectfield,_,ClassRef,_Unique,_OptSpec}} ->
 	    {MName,ClassDef} = get_referenced_type(S,ClassRef),
-	    NewS = update_state(S#state{type=ClassDef,
-					tname=get_datastr_name(ClassDef)},
+	    NewS = update_state(S#state{tname=get_datastr_name(ClassDef)},
 				MName),
 	    CheckedCDef = check_class(NewS,ClassDef),
 	    get_OCFType(S,CheckedCDef#objectclass.fields,Rest);
 	{value,{objectsetfield,_,Type,_OptSpec}} ->
 	    {MName,ClassDef} = get_referenced_type(S,Type#type.def),
-	    NewS = update_state(S#state{type=ClassDef,
-					tname=get_datastr_name(ClassDef)},
+	    NewS = update_state(S#state{tname=get_datastr_name(ClassDef)},
 				MName),
 	    CheckedCDef = check_class(NewS,ClassDef),
 	    get_OCFType(S,CheckedCDef#objectclass.fields,Rest);
@@ -6461,7 +5560,7 @@ get_OCFType(S,Fields,[PrimFieldName|Rest]) ->
 	{value,Other} ->
 	    {element(1,Other),PrimFieldName};
 	_  ->
-	    throw({error,lists:flatten(io_lib:format("undefined FieldName in ObjectClassFieldType: ~w",[PrimFieldName]))})
+	    asn1_error(S, {illegal_object_field, PrimFieldName})
     end.
 
 get_taglist(S,Ext) when is_record(Ext,'Externaltypereference') ->
@@ -6485,30 +5584,8 @@ get_taglist(_S,#'ObjectClassFieldType'{type={typefield,_}}) ->
     [];
 get_taglist(S,#'ObjectClassFieldType'{type={fixedtypevaluefield,_,Type}}) ->
     get_taglist(S,Type);
-get_taglist(S,{ERef=#'Externaltypereference'{},FieldNameList})
-  when is_list(FieldNameList) ->
-    case get_ObjectClassFieldType(S,ERef,FieldNameList) of
-	{fixedtypevaluefield,_,Type} -> get_taglist(S,Type);
-	{TypeFieldName,_} when is_atom(TypeFieldName) -> []%should check if allowed
-    end;
-get_taglist(S,{ObjCl,FieldNameList}) when is_record(ObjCl,objectclass),
-					  is_list(FieldNameList) ->
-    case get_ObjectClassFieldType(S,ObjCl#objectclass.fields,FieldNameList) of
-	{fixedtypevaluefield,_,Type} -> get_taglist(S,Type);
-	{TypeFieldName,_} when is_atom(TypeFieldName) -> []%should check if allowed
-    end;
-get_taglist(S,Def) ->
-    case S#state.erule of
-	ber ->
-	    [];
-	_ ->
-	    case Def of
-		'ASN1_OPEN_TYPE' -> % open_type has no UNIVERSAL tag as such
-		    [];
-		_ ->
-		    [asn1ct_gen:def_to_tag(Def)]
-	    end
-    end.
+get_taglist(_, _) ->
+    [].
 
 get_taglist1(S,[#'ComponentType'{name=_Cname,tags=TagL}|Rest]) when is_list(TagL) -> 
     %% tag_list has been here , just return TagL and continue with next alternative
@@ -6565,15 +5642,6 @@ get_taglist1(_S,[]) ->
 %% tag_number('CHARACTER STRING') -> 29;
 %% tag_number('BMPString') -> 30.
 
-
-dbget_ex(_S,Module,Key) ->
-    case asn1_db:dbget(Module,Key) of
-	undefined ->
-	    
-	    throw({error,{asn1,{undefined,{Module,Key}}}}); % this is catched on toplevel type or value
-	T -> T
-    end.
-
 merge_tags(T1, T2) when is_list(T2) ->
     merge_tags2(T1 ++ T2, []);
 merge_tags(T1, T2) ->
@@ -6590,75 +5658,46 @@ merge_tags2([H|T],Acc) ->
 merge_tags2([], Acc) ->
     lists:reverse(Acc).
 
-%% merge_constraints(C1, []) ->
-%%     C1;
-%% merge_constraints([], C2) ->
-%%     C2;
-%% merge_constraints(C1, C2) ->
-%%     {SList,VList,PAList,Rest} = splitlist(C1++C2,[],[],[],[]),
-%%     SizeC = merge_constraints(SList),
-%%     ValueC = merge_constraints(VList),
-%%     PermAlphaC = merge_constraints(PAList),
-%%     case Rest of
-%%         [] ->
-%%             SizeC ++ ValueC ++ PermAlphaC;
-%%         _ ->
-%%             throw({error,{asn1,{not_implemented,{merge_constraints,Rest}}}})
-%%     end.
-    
-%% merge_constraints([]) -> [];
-%% merge_constraints([C1 = {_,{Low1,High1}},{_,{Low2,High2}}|Rest]) when Low1 >= Low2,
-%%                                                                       High1 =< High2 ->
-%%     merge_constraints([C1|Rest]);
-%% merge_constraints([C1={'PermittedAlphabet',_},C2|Rest]) ->
-%%     [C1|merge_constraints([C2|Rest])];
-%% merge_constraints([C1 = {_,{_Low1,_High1}},C2 = {_,{_Low2,_High2}}|_Rest]) ->
-%%     throw({error,asn1,{conflicting_constraints,{C1,C2}}});
-%% merge_constraints([C]) ->
-%%     [C].
-
-%% splitlist([C={'SizeConstraint',_}|Rest],Sacc,Vacc,PAacc,Restacc) ->
-%%     splitlist(Rest,[C|Sacc],Vacc,PAacc,Restacc);
-%% splitlist([C={'ValueRange',_}|Rest],Sacc,Vacc,PAacc,Restacc) ->
-%%     splitlist(Rest,Sacc,[C|Vacc],PAacc,Restacc);
-%% splitlist([C={'PermittedAlphabet',_}|Rest],Sacc,Vacc,PAacc,Restacc) ->
-%%     splitlist(Rest,Sacc,Vacc,[C|PAacc],Restacc);
-%% splitlist([C|Rest],Sacc,Vacc,PAacc,Restacc) ->
-%%     splitlist(Rest,Sacc,Vacc,PAacc,[C|Restacc]);
-%% splitlist([],Sacc,Vacc,PAacc,Restacc) ->
-%%     {lists:reverse(Sacc),
-%%      lists:reverse(Vacc),
-%%      lists:reverse(PAacc),
-%%      lists:reverse(Restacc)}.
-
-
-
-storeindb(S,M) when is_record(M,module) ->
-    TVlist = M#module.typeorval,
-    NewM = M#module{typeorval=findtypes_and_values(TVlist)},
-    asn1_db:dbnew(NewM#module.name, S#state.erule),
-    asn1_db:dbput(NewM#module.name,'MODULE',  NewM),
-    Res = storeindb(#state{mname=NewM#module.name}, TVlist, []),
-    include_default_class(S,NewM#module.name),
+storeindb(S0, #module{name=ModName,typeorval=TVlist0}=M) ->
+    S = S0#state{mname=ModName},
+    TVlist1 = [{asn1ct:get_name_of_def(Def),Def} || Def <- TVlist0],
+    case check_duplicate_defs(S, TVlist1) of
+	ok ->
+	    storeindb_1(S, M, TVlist0, TVlist1);
+	{error,_}=Error ->
+	    Error
+    end.
+
+storeindb_1(S, #module{name=ModName}=M, TVlist0, TVlist) ->
+    NewM = M#module{typeorval=findtypes_and_values(TVlist0)},
+    asn1_db:dbnew(ModName, S#state.erule),
+    asn1_db:dbput(ModName, 'MODULE',  NewM),
+    asn1_db:dbput(ModName, TVlist),
+    include_default_class(S, NewM#module.name),
     include_default_type(NewM#module.name),
-    Res.
+    ok.
 
-storeindb(#state{mname=Module}=S, [H|T], Errors) ->
-    Name = asn1ct:get_name_of_def(H),
-    case asn1_db:dbget(Module, Name) of
-	undefined ->
-	    asn1_db:dbput(Module, Name, H),
-	    storeindb(S, T, Errors);
-	Prev ->
-	    PrevLine = asn1ct:get_pos_of_def(Prev),
-	    Error = return_asn1_error(S, H, {already_defined,Name,PrevLine}),
-	    storeindb(S, T, [Error|Errors])
-    end;
-storeindb(_, [], []) ->
-    ok;
-storeindb(_, [], [_|_]=Errors) ->
-    {error,Errors}.
+check_duplicate_defs(S, Defs) ->
+    Set0 = sofs:relation(Defs),
+    Set1 = sofs:relation_to_family(Set0),
+    Set = sofs:to_external(Set1),
+    case [duplicate_def(S, N, Dup) || {N,[_,_|_]=Dup} <- Set] of
+	[] ->
+	    ok;
+	[_|_]=E ->
+	    {error,lists:append(E)}
+    end.
+
+duplicate_def(S, Name, Dups0) ->
+    Dups1 = [{asn1ct:get_pos_of_def(Def),Def} || Def <- Dups0],
+    [{Prev,_}|Dups] = lists:sort(Dups1),
+    duplicate_def_1(S, Dups, Name, Prev).
 
+duplicate_def_1(S, [{_,Def}|T], Name, Prev) ->
+    E = return_asn1_error(S, Def, {already_defined,Name,Prev}),
+    [E|duplicate_def_1(S, T, Name, Prev)];
+duplicate_def_1(_, [], _, _) ->
+    [].
 
 findtypes_and_values(TVList) ->
     findtypes_and_values(TVList,[],[],[],[],[],[]).%% Types,Values,
@@ -6698,99 +5737,146 @@ findtypes_and_values([],Tacc,Vacc,Pacc,Cacc,Oacc,OSacc) ->
     {lists:reverse(Tacc),lists:reverse(Vacc),lists:reverse(Pacc),
      lists:reverse(Cacc),lists:reverse(Oacc),lists:reverse(OSacc)}.
     
+return_asn1_error(#state{error_context=Context}=S, Error) ->
+    return_asn1_error(S, Context, Error).
+
 return_asn1_error(#state{mname=Where}, Item, Error) ->
     Pos = asn1ct:get_pos_of_def(Item),
     {structured_error,{Where,Pos},?MODULE,Error}.
 
-asn1_error(S, Item, Error) ->
-    throw({error,return_asn1_error(S, Item, Error)}).
+asn1_error(S, Error) ->
+    throw({error,return_asn1_error(S, Error)}).
 
 format_error({already_defined,Name,PrevLine}) ->
     io_lib:format("the name ~p has already been defined at line ~p",
 		  [Name,PrevLine]);
+format_error({duplicate_identifier,Ids}) ->
+    io_lib:format("the identifier '~p' has already been used", [Ids]);
+format_error({duplicate_tags,Elements}) ->
+    io_lib:format("duplicate tags in the elements: ~s",
+		  [format_elements(Elements)]);
+format_error({enum_illegal_redefinition,Id}) ->
+    io_lib:format("'~s' must not be redefined", [Id]);
+format_error({enum_not_ascending,Id,N,Prev}) ->
+    io_lib:format("the values for enumerations which follow '...' must "
+		  "be in ascending order, but '~p(~p)' is less than the "
+		  "previous value '~p'", [Id,N,Prev]);
+format_error({enum_reused_value,Id,Val}) ->
+    io_lib:format("'~s' has the value '~p' which is used more than once",
+		  [Id,Val]);
+format_error({illegal_id, Id}) ->
+    io_lib:format("illegal identifier: ~p", [Id]);
+format_error({illegal_choice_type, Ref}) ->
+    io_lib:format("expecting a CHOICE type: ~p", [Ref]);
+format_error({illegal_class_name,Class}) ->
+    io_lib:format("the class name '~s' is illegal (it must start with an uppercase letter and only contain uppercase letters, digits, or hyphens)", [Class]);
+format_error({illegal_COMPONENTS_OF, Ref}) ->
+    io_lib:format("expected a SEQUENCE or SET got: ~p", [Ref]);
+format_error(illegal_external_value) ->
+    "illegal value in EXTERNAL type";
 format_error({illegal_instance_of,Class}) ->
     io_lib:format("using INSTANCE OF on class '~s' is illegal, "
-		  "because INSTANCE OF may only be used on the class TYPE-IDENTFIER",
+		  "because INSTANCE OF may only be used on the class TYPE-IDENTIFIER",
 		  [Class]);
+format_error(illegal_integer_value) ->
+    "expecting an integer value";
+format_error(illegal_object) ->
+    "expecting an object";
+format_error({illegal_object_field, Id}) ->
+    io_lib:format("expecting a class field: ~p",[Id]);
+format_error({illegal_oid,o_id}) ->
+    "illegal OBJECT IDENTIFIER";
+format_error({illegal_oid,rel_oid}) ->
+    "illegal RELATIVE-OID";
 format_error(illegal_octet_string_value) ->
     "expecting a bstring or an hstring as value for an OCTET STRING";
 format_error({illegal_typereference,Name}) ->
     io_lib:format("'~p' is used as a typereference, but does not start with an uppercase letter", [Name]);
+format_error(illegal_table_constraint) ->
+    "table constraints may only be applied to CLASS.&field constructs";
+format_error(illegal_value) ->
+    "expecting a value";
+format_error({illegal_value, TYPE}) ->
+    io_lib:format("expecting a ~s value", [TYPE]);
 format_error({invalid_fields,Fields,Obj}) ->
     io_lib:format("invalid ~s in ~p", [format_fields(Fields),Obj]);
 format_error({invalid_bit_number,Bit}) ->
     io_lib:format("the bit number '~p' is invalid", [Bit]);
+format_error(invalid_table_constraint) ->
+    "the table constraint is not an object set";
+format_error(invalid_objectset) ->
+    "expecting an object set";
+format_error({implicit_tag_before,Kind}) ->
+    "illegal implicit tag before " ++
+	case Kind of
+	    choice -> "'CHOICE'";
+	    open_type -> "open type"
+	end;
 format_error({missing_mandatory_fields,Fields,Obj}) ->
     io_lib:format("missing mandatory ~s in ~p",
 		  [format_fields(Fields),Obj]);
+format_error({missing_table_constraint,Component}) ->
+    io_lib:format("the component '~s' is referenced by a component relation constraint using the '@field-name' notation, but does not have a table constraint",
+		  [Component]);
+format_error({missing_id,Id}) ->
+    io_lib:format("expected the mandatory component '~p'", [Id]);
+format_error({missing_ocft,Component}) ->
+    io_lib:format("the component '~s' must be an ObjectClassFieldType (CLASSNAME.&field-name)", [Component]);
+format_error(multiple_uniqs) ->
+    "implementation limitation: only one UNIQUE field is allowed in CLASS";
 format_error({namelist_redefinition,Name}) ->
     io_lib:format("the name '~s' can not be redefined", [Name]);
+format_error({param_bad_type, Ref}) ->
+    io_lib:format("'~p' is not a parameterized type", [Ref]);
+format_error(param_wrong_number_of_arguments) ->
+    "wrong number of arguments";
+format_error(reversed_range) ->
+    "ranges must be given in increasing order";
+format_error({syntax_duplicated_fields,Fields}) ->
+    io_lib:format("~s must only occur once in the syntax list",
+		  [format_fields(Fields)]);
+format_error(syntax_nomatch) ->
+    "unexpected end of object definition";
+format_error({syntax_mandatory_in_optional_group,Name}) ->
+    io_lib:format("the field '&~s' must not be within an optional group since it is not optional",
+		  [Name]);
+format_error({syntax_missing_mandatory_fields,Fields}) ->
+    io_lib:format("missing mandatory ~s in the syntax list",
+		  [format_fields(Fields)]);
+format_error({syntax_nomatch,Actual}) ->
+    io_lib:format("~s is not the next item allowed according to the defined syntax",
+		  [Actual]);
+format_error({syntax_undefined_field,Field}) ->
+    io_lib:format("'&~s' is not a field of the class being defined",
+		  [Field]);
 format_error({undefined,Name}) ->
     io_lib:format("'~s' is referenced, but is not defined", [Name]);
+format_error({undefined_export,Ref}) ->
+    io_lib:format("'~s' is exported but is not defined", [Ref]);
+format_error({undefined_field,FieldName}) ->
+    io_lib:format("the field '&~s' is undefined", [FieldName]);
 format_error({undefined_import,Ref,Module}) ->
     io_lib:format("'~s' is not exported from ~s", [Ref,Module]);
+format_error({unique_and_default,Field}) ->
+    io_lib:format("the field '&~s' must not have both 'UNIQUE' and 'DEFAULT'",
+		  [Field]);
 format_error({value_reused,Val}) ->
     io_lib:format("the value '~p' is used more than once", [Val]);
+format_error({non_unique_object,Id}) ->
+    io_lib:format("object set with a UNIQUE field value of '~p' is used more than once", [Id]);
 format_error(Other) ->
     io_lib:format("~p", [Other]).
 
 format_fields([F]) ->
-    io_lib:format("field &~s", [F]);
+    io_lib:format("field '&~s'", [F]);
 format_fields([H|T]) ->
-    [io_lib:format("fields &~s", [H])|
-     [io_lib:format(", &~s", [F]) || F <- T]].
-
-error({_,{structured_error,_,_,_}=SE,_}) ->
-    SE;
-error({export,Msg,#state{mname=Mname,type=Ref,tname=Typename}}) ->
-    Pos = Ref#'Externaltypereference'.pos,
-    io:format("asn1error:~p:~p:~p~n~p~n",[Pos,Mname,Typename,Msg]),
-    {error,{export,Pos,Mname,Typename,Msg}};
-% error({type,{Msg1,Msg2},#state{mname=Mname,type=Type,tname=Typename}}) 
-%   when is_record(Type,typedef) ->
-%     io:format("asn1error:~p:~p:~p ~p~n",
-% 	      [Type#typedef.pos,Mname,Typename,Msg1]),
-%     {error,{type,Type#typedef.pos,Mname,Typename,Msg1,Msg2}};
-error({type,Msg,#state{mname=Mname,type=Type,tname=Typename}}) 
-  when is_record(Type,type) ->
-    io:format("asn1error:~p:~p~n~p~n",
-	      [Mname,Typename,Msg]),
-    {error,{type,Mname,Typename,Msg}};
-error({type,Msg,#state{mname=Mname,type=Type,tname=Typename}}) 
-  when is_record(Type,typedef) ->
-    io:format("asn1error:~p:~p:~p~n~p~n",
-	      [Type#typedef.pos,Mname,Typename,Msg]),
-    {error,{type,Type#typedef.pos,Mname,Typename,Msg}};
-error({type,Msg,#state{mname=Mname,type=Type,tname=Typename}}) 
-  when is_record(Type,ptypedef) ->
-    io:format("asn1error:~p:~p:~p~n~p~n",
-	      [Type#ptypedef.pos,Mname,Typename,Msg]),
-    {error,{type,Type#ptypedef.pos,Mname,Typename,Msg}};
-error({type,Msg,#state{mname=Mname,value=Value,vname=Valuename}})
-  when is_record(Value,valuedef) ->
-    io:format("asn1error:~p:~p:~p~n~p~n",[Value#valuedef.pos,Mname,Valuename,Msg]),
-    {error,{type,Value#valuedef.pos,Mname,Valuename,Msg}};
-error({type,Msg,#state{mname=Mname,type=Type,tname=Typename}}) 
-  when is_record(Type,pobjectdef) ->
-    io:format("asn1error:~p:~p:~p~n~p~n",
-	      [Type#pobjectdef.pos,Mname,Typename,Msg]),
-    {error,{type,Type#pobjectdef.pos,Mname,Typename,Msg}};
-error({value,Msg,#state{mname=Mname,value=Value,vname=Valuename}}) 
-  when is_record(Value,valuedef) ->
-    io:format("asn1error:~p:~p:~p~n~p~n",[Value#valuedef.pos,Mname,Valuename,Msg]),
-    {error,{value,Value#valuedef.pos,Mname,Valuename,Msg}};
-error({Other,Msg,#state{mname=Mname,value=#valuedef{pos=Pos},vname=Valuename}}) ->
-    io:format("asn1error:~p:~p:~p~n~p~n",[Pos,Mname,Valuename,Msg]),
-    {error,{Other,Pos,Mname,Valuename,Msg}};
-error({Other,Msg,#state{mname=Mname,type=#typedef{pos=Pos},tname=Typename}}) ->
-    io:format("asn1error:~p:~p:~p~n~p~n",[Pos,Mname,Typename,Msg]),
-    {error,{Other,Pos,Mname,Typename,Msg}};
-error({Other,Msg,#state{mname=Mname,type=#classdef{pos=Pos},tname=Typename}}) ->
-    io:format("asn1error:~p:~p:~p~n~p~n",[Pos,Mname,Typename,Msg]),
-    {error,{Other,Pos,Mname,Typename,Msg}};
-error({Other,Msg,#state{mname=Mname,type=Type,tname=Typename}}) ->
-    io:format("asn1error:~p:~p:~p~n~p~n",[asn1ct:get_pos_of_def(Type),Mname,Typename,Msg]),
-    {error,{Other,asn1ct:get_pos_of_def(Type),Mname,Typename,Msg}}.
+    [io_lib:format("fields '&~s'", [H])|
+     [io_lib:format(", '&~s'", [F]) || F <- T]].
+
+format_elements([H1,H2|T]) ->
+    [io_lib:format("~p, ", [H1])|format_elements([H2|T])];
+format_elements([H]) ->
+    io_lib:format("~p", [H]).
 
 include_default_type(Module) ->
     NameAbsList = default_type_list(),
@@ -6953,62 +6039,62 @@ default_type_list() ->
      ].
 
 
-include_default_class(S,Module) ->
-    NameAbsList = default_class_list(S),
-    include_default_class1(Module,NameAbsList).
+include_default_class(S, Module) ->
+    _ = [include_default_class1(S, Module, ClassDef) ||
+	    ClassDef <- default_class_list()],
+	ok.
 
-include_default_class1(_,[]) ->
-    ok;
-include_default_class1(Module,[{Name,TS}|Rest]) ->
-    case asn1_db:dbget(Module,Name) of
+include_default_class1(S, Module, {Name,Ts0}) ->
+    case asn1_db:dbget(Module, Name) of
 	undefined ->
-	    C = #classdef{checked=true,module=Module,name=Name,
-			  typespec=TS},
-	    asn1_db:dbput(Module,Name,C);
-	_ -> ok
-    end,
-    include_default_class1(Module,Rest).
+	    #objectclass{fields=Fields,
+			 syntax={'WITH SYNTAX',Syntax0}} = Ts0,
+	    Syntax = preprocess_syntax(S, Syntax0, Fields),
+	    Ts = Ts0#objectclass{syntax={preprocessed_syntax,Syntax}},
+	    C = #classdef{checked=true,module=Module,
+			  name=Name,typespec=Ts},
+	    asn1_db:dbput(Module, Name, C);
+	_ ->
+	    ok
+    end.
 
-default_class_list(S) ->
+default_class_list() ->
     [{'TYPE-IDENTIFIER',
-      {objectclass,
-       [{fixedtypevaluefield,
-	 id,
-	 #type{tag=?TAG_PRIMITIVE(?N_OBJECT_IDENTIFIER),
-	       def='OBJECT IDENTIFIER'},
-	 'UNIQUE',
-	 'MANDATORY'},
-	{typefield,'Type','MANDATORY'}],
-       {'WITH SYNTAX',
-	[{typefieldreference,'Type'},
-	 'IDENTIFIED',
-	 'BY',
-	 {valuefieldreference,id}]}}},
+      #objectclass{fields=[{fixedtypevaluefield,
+			    id,
+			    #type{tag=[?TAG_PRIMITIVE(?N_OBJECT_IDENTIFIER)],
+				  def='OBJECT IDENTIFIER'},
+			    'UNIQUE',
+			    'MANDATORY'},
+			   {typefield,'Type','MANDATORY'}],
+		   syntax={'WITH SYNTAX',
+			   [{typefieldreference,'Type'},
+			    'IDENTIFIED',
+			    'BY',
+			    {valuefieldreference,id}]}}},
      {'ABSTRACT-SYNTAX',
-      {objectclass,
-       [{fixedtypevaluefield,
-	 id,
-	 #type{tag=?TAG_PRIMITIVE(?N_OBJECT_IDENTIFIER),
-	       def='OBJECT IDENTIFIER'},
-	 'UNIQUE',
-	 'MANDATORY'},
-	{typefield,'Type','MANDATORY'},
-	{fixedtypevaluefield,
-	 property,
-	 #type{tag=?TAG_PRIMITIVE(?N_BIT_STRING),
-	       def={'BIT STRING',[]}},
-	 undefined,
-	 {'DEFAULT',
-	  [0,1,0]}}],
-       {'WITH SYNTAX',
-	[{typefieldreference,'Type'},
-	 'IDENTIFIED',
-	 'BY',
-	 {valuefieldreference,id},
-	 ['HAS',
-	  'PROPERTY',
-	  {valuefieldreference,property}]]}}}].
-
+      #objectclass{fields=[{fixedtypevaluefield,
+			    id,
+			    #type{tag=[?TAG_PRIMITIVE(?N_OBJECT_IDENTIFIER)],
+				  def='OBJECT IDENTIFIER'},
+			    'UNIQUE',
+			    'MANDATORY'},
+			   {typefield,'Type','MANDATORY'},
+			   {fixedtypevaluefield,
+			    property,
+			    #type{tag=[?TAG_PRIMITIVE(?N_BIT_STRING)],
+				  def={'BIT STRING',[]}},
+			    undefined,
+			    {'DEFAULT',
+			     [0,1,0]}}],
+		   syntax={'WITH SYNTAX',
+			   [{typefieldreference,'Type'},
+			    'IDENTIFIED',
+			    'BY',
+			    {valuefieldreference,id},
+			    ['HAS',
+			     'PROPERTY',
+			     {valuefieldreference,property}]]}}}].
 
 new_reference_name(Name) ->
     case get(asn1_reference) of
@@ -7037,8 +6123,9 @@ insert_once(S,Tab,Key) ->
 	    skipped
     end.
 
-check_fold(S, [H|T], Check) ->
-    Type = asn1_db:dbget(S#state.mname, H),
+check_fold(S0, [H|T], Check) ->
+    Type = asn1_db:dbget(S0#state.mname, H),
+    S = S0#state{error_context=Type},
     case Check(S, H, Type) of
 	ok ->
 	    check_fold(S, T, Check);
@@ -7047,5 +6134,19 @@ check_fold(S, [H|T], Check) ->
     end;
 check_fold(_, [], Check) when is_function(Check, 3) -> [].
 
+error_value(Value) when is_integer(Value) -> Value;
+error_value(Value) when is_atom(Value) -> Value;
+error_value(#type{def=Value}) when is_atom(Value) -> Value;
+error_value(#type{def=Value}) -> error_value(Value);
+error_value(RefOrType) ->
+    try name_of_def(RefOrType) of
+	Name -> Name
+    catch _:_ ->
+	    case get_datastr_name(RefOrType) of
+		undefined -> RefOrType;
+		Name -> Name
+	    end
+    end.
+
 name_of_def(#'Externaltypereference'{type=N}) -> N;
 name_of_def(#'Externalvaluereference'{value=N}) -> N.
diff --git a/lib/asn1/src/asn1ct_constructed_per.erl b/lib/asn1/src/asn1ct_constructed_per.erl
index a91404ed54..0bc6688a49 100644
--- a/lib/asn1/src/asn1ct_constructed_per.erl
+++ b/lib/asn1/src/asn1ct_constructed_per.erl
@@ -410,12 +410,11 @@ gen_dec_open_type(Erule, Val, {Xmod,Xtype}, LeadingAttr,
     #classdef{typespec=ClassDef} = asn1_db:dbget(ClMod, ClType),
     #objectclass{fields=ClassFields} = ClassDef,
     Extensible = lists:member('EXTENSIONMARK', ObjSet1),
-    ObjSet2 = [{Key,fix_object_code(Name, Code, ClassFields)} ||
-		  {_,Key,Code} <- ObjSet1],
-    ObjSet = lists:sort([P || {_,B}=P <- ObjSet2, B =/= none]),
+    Typename = [Name,ClType],
+    ObjSet = index_object_set(Erule, ClType, Name,
+			      ObjSet1, ClassFields),
     Key = erlang:md5(term_to_binary({decode,ObjSet,RestFieldNames,
 				     Prop,Extensible})),
-    Typename = [Name,ClType],
     Gen = fun(_Fd, N) ->
 		  dec_objset_optional(N, Prop),
 		  dec_objset(Erule, N, ObjSet, RestFieldNames, Typename),
@@ -467,46 +466,15 @@ dec_objset_2(Erule, Obj, RestFields0, Typename) ->
 	    Imm = asn1ct_gen_per:gen_dec_imm(Erule, Type),
 	    {Term,_} = asn1ct_imm:dec_slim_cg(Imm, 'Bytes'),
 	    emit([com,nl,Term]);
-	#typedef{name={constructed,bif},typespec=Def} ->
-	    InnerType = asn1ct_gen:get_inner(Def#type.def),
-	    case InnerType of
-		'CHOICE' ->
-		    asn1ct_name:start(),
-		    asn1ct_name:new(bytes),
-		    {'CHOICE',CompList} = Def#type.def,
-		    Ext = extensible_enc(CompList),
-		    emit(["{Result,_} = begin",nl]),
-		    gen_dec_choice(Erule, Typename, CompList, Ext),
-		    emit([nl,
-			  "end",com,nl,
-			  "Result"]);
-		'SET' ->
-		    Imm0 = gen_dec_constructed_imm(Erule, Typename, Def),
-		    Imm = opt_imm(Imm0),
-		    asn1ct_name:start(),
-		    emit(["{Result,_} = begin",nl]),
-		    emit_gen_dec_imm(Imm),
-		    emit([nl,
-			  "end",com,nl,
-			  "Result"]);
-		'SET OF' ->
-		    asn1ct_name:start(),
-		    do_gen_decode_sof(Erule, Typename, 'SET OF',
-				      Def, false);
-		'SEQUENCE' ->
-		    Imm0 = gen_dec_constructed_imm(Erule, Typename, Def),
-		    Imm = opt_imm(Imm0),
-		    asn1ct_name:start(),
-		    emit(["{Result,_} = begin",nl]),
-		    emit_gen_dec_imm(Imm),
-		    emit([nl,
-			  "end",com,nl,
-			  "Result"]);
-		'SEQUENCE OF' ->
-		    asn1ct_name:start(),
-		    do_gen_decode_sof(Erule, Typename, 'SEQUENCE OF',
-				      Def, false)
-	    end;
+	#typedef{name={constructed,bif},typespec=Type}=Def ->
+	    Prefix = "dec_outlined_",
+	    Key = {dec_outlined,Def},
+	    Gen = fun(_Fd, Name) ->
+			  gen_dec_obj(Erule, Name, Typename, Type)
+		  end,
+	    Func = asn1ct_func:call_gen(Prefix, Key, Gen),
+	    emit(["{Term,_} = ",{asis,Func},"(Bytes)",com,nl,
+		  "Term"]);
 	#typedef{name=Type} ->
 	    emit(["{Result,_} = ",{asis,enc_func("dec_", Type)},"(Bytes),",nl,
 		  "Result"]);
@@ -531,6 +499,12 @@ dec_objset_2(Erule, Obj, RestFields0, Typename) ->
 	    end
     end.
 
+gen_dec_obj(Erules, Name, Typename, Type) ->
+    emit([{asis,Name},"(Bytes) ->",nl]),
+    InnerType = asn1ct_gen:get_inner(Type#type.def),
+    asn1ct_gen:gen_decode_constructed(Erules, Typename,
+				      InnerType, Type).
+
 gen_encode_choice(Erule, TopType, D) ->
     asn1ct_name:start(),
     Imm = gen_encode_choice_imm(Erule, TopType, D),
@@ -595,10 +569,10 @@ gen_encode_sof_imm(Erule, Typename, SeqOrSetOf, #type{}=D) ->
 
 gen_decode_sof(Erules, Typename, SeqOrSetOf, #type{}=D) ->
     asn1ct_name:start(),
-    do_gen_decode_sof(Erules, Typename, SeqOrSetOf, D, true),
+    do_gen_decode_sof(Erules, Typename, SeqOrSetOf, D),
     emit([".",nl,nl]).
 
-do_gen_decode_sof(Erules, Typename, SeqOrSetOf, D, NeedRest) ->
+do_gen_decode_sof(Erules, Typename, SeqOrSetOf, D) ->
     {_SeqOrSetOf,ComponentType} = D#type.def,
     SizeConstraint = asn1ct_imm:effective_constraint(bitstring,
 						     D#type.constraint),
@@ -610,12 +584,11 @@ do_gen_decode_sof(Erules, Typename, SeqOrSetOf, D, NeedRest) ->
 		""
 	end,
     {Num,Buf} = gen_decode_length(SizeConstraint, Erules),
-    Key = erlang:md5(term_to_binary({Typename,SeqOrSetOf,
-				     ComponentType,NeedRest})),
+    Key = erlang:md5(term_to_binary({Typename,SeqOrSetOf,ComponentType})),
     Gen = fun(_Fd, Name) ->
 		  gen_decode_sof_components(Erules, Name,
 					    Typename, SeqOrSetOf,
-					    ComponentType, NeedRest)
+					    ComponentType)
 	  end,
     F = asn1ct_func:call_gen("dec_components", Key, Gen),
     emit([",",nl,
@@ -629,7 +602,7 @@ gen_decode_length(Constraint, Erule) ->
     Imm = asn1ct_imm:per_dec_length(Constraint, true, is_aligned(Erule)),
     asn1ct_imm:dec_slim_cg(Imm, "Bytes").
 
-gen_decode_sof_components(Erule, Name, Typename, SeqOrSetOf, Cont, NeedRest) ->
+gen_decode_sof_components(Erule, Name, Typename, SeqOrSetOf, Cont) ->
     {ObjFun,ObjFun_Var} =
 	case Cont#type.tablecinf of
 	    [{objfun,_}|_R] ->
@@ -637,14 +610,8 @@ gen_decode_sof_components(Erule, Name, Typename, SeqOrSetOf, Cont, NeedRest) ->
 	    _ ->
 		{"",""}
 	end,
-    case NeedRest of
-	false ->
-	    emit([{asis,Name},"(0, _Bytes",ObjFun_Var,", Acc) ->",nl,
-		  "lists:reverse(Acc);",nl]);
-	true ->
-	    emit([{asis,Name},"(0, Bytes",ObjFun_Var,", Acc) ->",nl,
-		  "{lists:reverse(Acc),Bytes};",nl])
-    end,
+    emit([{asis,Name},"(0, Bytes",ObjFun_Var,", Acc) ->",nl,
+	  "{lists:reverse(Acc),Bytes};",nl]),
     emit([{asis,Name},"(Num, Bytes",ObjFun,", Acc) ->",nl,
 	  "{Term,Remain} = "]),
     Constructed_Suffix = asn1ct_gen:constructed_suffix(SeqOrSetOf,
@@ -1024,11 +991,12 @@ enc_var_type_call(Erule, Name, RestFieldNames,
     #classdef{typespec=ClassDef} = asn1_db:dbget(ClMod, ClType),
     #objectclass{fields=ClassFields} = ClassDef,
     Extensible = lists:member('EXTENSIONMARK', ObjSet1),
-    ObjSet2 = [{Key,fix_object_code(Name, Code, ClassFields)} ||
-		  {_,Key,Code} <- ObjSet1],
-    ObjSet = lists:sort([P || {_,B}=P <- ObjSet2, B =/= none]),
+    ObjSet = index_object_set(Erule, ClType, Name,
+			      ObjSet1, ClassFields),
     Key = erlang:md5(term_to_binary({encode,ObjSet,RestFieldNames,Extensible})),
-    Imm = enc_objset_imm(Erule, Name, ObjSet, RestFieldNames, Extensible),
+    TypeName = [ClType,Name],
+    Imm = enc_objset_imm(Erule, TypeName, Name, ObjSet,
+			 RestFieldNames, Extensible),
     Lambda = {lambda,[{var,"Val"},{var,"Id"}],Imm},
     Gen = fun(_Fd, N) ->
 		  Aligned = is_aligned(Erule),
@@ -1039,11 +1007,27 @@ enc_var_type_call(Erule, Name, RestFieldNames,
     Prefix = lists:concat(["enc_os_",Name]),
     [{call_gen,Prefix,Key,Gen,Lambda,[Val,Fun]}].
 
-fix_object_code(Name, [{Name,B}|_], _ClassFields) ->
-    B;
-fix_object_code(Name, [_|T], ClassFields) ->
-    fix_object_code(Name, T, ClassFields);
-fix_object_code(Name, [], ClassFields) ->
+index_object_set(_Erules, _ClType, Name, Set0, ClassFields) ->
+    Set = index_object_set_1(Name, Set0, ClassFields),
+    lists:sort(Set).
+
+index_object_set_1(Name, [{_,Key,Code}|T], ClassFields) ->
+    case index_object_set_2(Name, Code, ClassFields) of
+	none ->
+	    index_object_set_1(Name, T, ClassFields);
+	Type ->
+	    [{Key,Type}|index_object_set_1(Name, T, ClassFields)]
+    end;
+index_object_set_1(Name, [_|T], ClassFields) ->
+    index_object_set_1(Name, T, ClassFields);
+index_object_set_1(_, [], _) ->
+    [].
+
+index_object_set_2(Name, [{Name,Type}|_], _ClassFields) ->
+    Type;
+index_object_set_2(Name, [_|T], ClassFields) ->
+    index_object_set_2(Name, T, ClassFields);
+index_object_set_2(Name, [], ClassFields) ->
     case lists:keyfind(Name, 2, ClassFields) of
 	{typefield,Name,'OPTIONAL'} ->
 	    none;
@@ -1059,7 +1043,8 @@ fix_object_code(Name, [], ClassFields) ->
 	    end
     end.
 
-enc_objset_imm(Erule, Component, ObjSet, RestFieldNames, Extensible) ->
+enc_objset_imm(Erule, TypeName, Component, ObjSet,
+	       RestFieldNames, Extensible) ->
     Aligned = is_aligned(Erule),
     E = {error,
 	 fun() ->
@@ -1070,7 +1055,7 @@ enc_objset_imm(Erule, Component, ObjSet, RestFieldNames, Extensible) ->
 	 end},
     [{'cond',
       [[{eq,{var,"Id"},Key}|
-	enc_obj(Erule, Obj, RestFieldNames, Aligned)] ||
+	enc_obj(Erule, Obj, TypeName, RestFieldNames, Aligned)] ||
 	  {Key,Obj} <- ObjSet] ++
 	  [['_',case Extensible of
 		    false ->
@@ -1086,24 +1071,18 @@ enc_objset_imm(Erule, Component, ObjSet, RestFieldNames, Extensible) ->
 			end
 		end]]}].
 
-enc_obj(Erule, Obj, RestFieldNames0, Aligned) ->
+enc_obj(Erule, Obj, TypeName, RestFieldNames0, Aligned) ->
+    Val = {var,"Val"},
     case Obj of
+	#typedef{name={constructed,bif},typespec=Type}=Def ->
+	    Prefix = "enc_outlined_",
+	    Key = {enc_outlined,Def},
+	    Gen = fun(_Fd, Name) ->
+			  gen_enc_obj(Erule, Name, TypeName, Type)
+		  end,
+	    [{call_gen,Prefix,Key,Gen,undefined,[Val]}];
 	#typedef{name={primitive,bif},typespec=Def} ->
 	    asn1ct_gen_per:gen_encode_prim_imm({var,"Val"}, Def, Aligned);
-	#typedef{name={constructed,bif},typespec=Def} ->
-	    InnerType = asn1ct_gen:get_inner(Def#type.def),
-	    case InnerType of
-		'CHOICE' ->
-		    gen_encode_choice_imm(Erule, name, Def);
-		'SET' ->
-		    gen_encode_constructed_imm(Erule, name, Def);
-		'SET OF' ->
-		    gen_encode_sof_imm(Erule, name, InnerType, Def);
-		'SEQUENCE' ->
-		    gen_encode_constructed_imm(Erule, name, Def);
-		'SEQUENCE OF' ->
-		    gen_encode_sof_imm(Erule, name, InnerType, Def)
-	    end;
 	#typedef{name=Type} ->
 	    [{apply,{local,enc_func(Type),Type},[{var,"Val"}]}];
 	#'Externalvaluereference'{module=Mod,value=Value} ->
@@ -1112,7 +1091,8 @@ enc_obj(Erule, Obj, RestFieldNames0, Aligned) ->
 		    {object,_,Fields} = Def,
 		    [NextField|RestFieldNames] = RestFieldNames0,
 		    {NextField,Typedef} = lists:keyfind(NextField, 1, Fields),
-		    enc_obj(Erule, Typedef, RestFieldNames, Aligned)
+		    enc_obj(Erule, Typedef, TypeName,
+			    RestFieldNames, Aligned)
 	    end;
 	#'Externaltypereference'{module=Mod,type=Type} ->
 	    Func = enc_func(Type),
@@ -1124,6 +1104,11 @@ enc_obj(Erule, Obj, RestFieldNames0, Aligned) ->
 	    end
     end.
 
+gen_enc_obj(Erules, Name, Typename, Type) ->
+    emit([{asis,Name},"(Val) ->",nl]),
+    InnerType = asn1ct_gen:get_inner(Type#type.def),
+    asn1ct_gen:gen_encode_constructed(Erules, Typename,
+				      InnerType, Type).
 
 gen_dec_components_call(Erule, TopType, {Root,ExtList},
 			DecInfObj, Ext, NumberOfOptionals) ->
diff --git a/lib/asn1/src/asn1ct_gen.erl b/lib/asn1/src/asn1ct_gen.erl
index 2ef8466309..0e41aa1a7a 100644
--- a/lib/asn1/src/asn1ct_gen.erl
+++ b/lib/asn1/src/asn1ct_gen.erl
@@ -531,34 +531,30 @@ gen_part_decode_funcs({primitive,bif},_TypeName,
 gen_part_decode_funcs(WhatKind,_TypeName,{_,Directive,_,_}) ->
     throw({error,{asn1,{"Not implemented yet",WhatKind," partial incomplete directive:",Directive}}}).
 
-
-gen_types(Erules,Tname,{RootL1,ExtList,RootL2}) 
+%% EncDec = 'gen_encode' | 'gen_decode'
+gen_types(Erules, Tname, {RootL1,ExtList,RootL2}, EncDec)
   when is_list(RootL1), is_list(RootL2) ->
-    gen_types(Erules,Tname,RootL1),
-    Rtmod = ct_gen_module(Erules),
-    gen_types(Erules,Tname,Rtmod:extaddgroup2sequence(ExtList)),
-    gen_types(Erules,Tname,RootL2);
-gen_types(Erules,Tname,{RootList,ExtList}) when is_list(RootList) ->
-    gen_types(Erules,Tname,RootList),
+    gen_types(Erules, Tname, RootL1, EncDec),
     Rtmod = ct_gen_module(Erules),
-    gen_types(Erules,Tname,Rtmod:extaddgroup2sequence(ExtList));
-gen_types(Erules,Tname,[{'EXTENSIONMARK',_,_}|Rest]) ->
-    gen_types(Erules,Tname,Rest);
-gen_types(Erules,Tname,[ComponentType|Rest]) ->
+    gen_types(Erules, Tname, Rtmod:extaddgroup2sequence(ExtList), EncDec),
+    gen_types(Erules, Tname, RootL2, EncDec);
+gen_types(Erules, Tname, {RootList,ExtList}, EncDec) when is_list(RootList) ->
+    gen_types(Erules, Tname, RootList, EncDec),
     Rtmod = ct_gen_module(Erules),
+    gen_types(Erules, Tname, Rtmod:extaddgroup2sequence(ExtList), EncDec);
+gen_types(Erules, Tname, [{'EXTENSIONMARK',_,_}|T], EncDec) ->
+    gen_types(Erules, Tname, T, EncDec);
+gen_types(Erules, Tname, [ComponentType|T], EncDec) ->
     asn1ct_name:clear(),
-    Rtmod:gen_encode(Erules,Tname,ComponentType),
-    asn1ct_name:clear(),
-    Rtmod:gen_decode(Erules,Tname,ComponentType),
-    gen_types(Erules,Tname,Rest);
-gen_types(_,_,[]) ->
-    true;
-gen_types(Erules,Tname,Type) when is_record(Type,type) ->
     Rtmod = ct_gen_module(Erules),
+    Rtmod:EncDec(Erules, Tname, ComponentType),
+    gen_types(Erules, Tname, T, EncDec);
+gen_types(_, _, [], _) ->
+    ok;
+gen_types(Erules, Tname, #type{}=Type, EncDec) ->
     asn1ct_name:clear(),
-    Rtmod:gen_encode(Erules,Tname,Type),
-    asn1ct_name:clear(),
-    Rtmod:gen_decode(Erules,Tname,Type).
+    Rtmod = ct_gen_module(Erules),
+    Rtmod:EncDec(Erules, Tname, Type).
 
 %% VARIOUS GENERATOR STUFF 
 %% *************************************************
@@ -599,25 +595,25 @@ gen_encode_constructed(Erules,Typename,InnerType,D) when is_record(D,type) ->
 	'SET' ->
 	    Rtmod:gen_encode_set(Erules,Typename,D),
 	    #'SET'{components=Components} = D#type.def,
-	    gen_types(Erules,Typename,Components);
+	    gen_types(Erules, Typename, Components, gen_encode);
 	'SEQUENCE' ->
 	    Rtmod:gen_encode_sequence(Erules,Typename,D),
 	    #'SEQUENCE'{components=Components} = D#type.def,
-	    gen_types(Erules,Typename,Components);
+	    gen_types(Erules, Typename, Components, gen_encode);
 	'CHOICE' ->
 	    Rtmod:gen_encode_choice(Erules,Typename,D),
 	    {_,Components} = D#type.def,
-	    gen_types(Erules,Typename,Components);
+	    gen_types(Erules, Typename, Components, gen_encode);
 	'SEQUENCE OF' ->
 	    Rtmod:gen_encode_sof(Erules,Typename,InnerType,D),
 	    {_,Type} = D#type.def,
 	    NameSuffix = asn1ct_gen:constructed_suffix(InnerType,Type#type.def),
-	    gen_types(Erules,[NameSuffix|Typename],Type);
+	    gen_types(Erules, [NameSuffix|Typename], Type, gen_encode);
 	'SET OF' ->
 	    Rtmod:gen_encode_sof(Erules,Typename,InnerType,D),
 	    {_,Type} = D#type.def,
 	    NameSuffix = asn1ct_gen:constructed_suffix(InnerType,Type#type.def),
-	    gen_types(Erules,[NameSuffix|Typename],Type);
+	    gen_types(Erules, [NameSuffix|Typename], Type, gen_encode);
 	_ ->
 	    exit({nyi,InnerType})
     end;
@@ -630,20 +626,29 @@ gen_decode_constructed(Erules,Typename,InnerType,D) when is_record(D,type) ->
     asn1ct:step_in_constructed(), %% updates namelist for exclusive decode
     case InnerType of
 	'SET' ->
-	    Rtmod:gen_decode_set(Erules,Typename,D);
+	    Rtmod:gen_decode_set(Erules,Typename,D),
+	    #'SET'{components=Components} = D#type.def,
+	    gen_types(Erules, Typename, Components, gen_decode);
 	'SEQUENCE' ->
-	    Rtmod:gen_decode_sequence(Erules,Typename,D);
+	    Rtmod:gen_decode_sequence(Erules,Typename,D),
+	    #'SEQUENCE'{components=Components} = D#type.def,
+	    gen_types(Erules, Typename, Components, gen_decode);
 	'CHOICE' ->
-	    Rtmod:gen_decode_choice(Erules,Typename,D);
+	    Rtmod:gen_decode_choice(Erules,Typename,D),
+	    {_,Components} = D#type.def,
+	    gen_types(Erules, Typename, Components, gen_decode);
 	'SEQUENCE OF' ->
-	    Rtmod:gen_decode_sof(Erules,Typename,InnerType,D);
+	    Rtmod:gen_decode_sof(Erules,Typename,InnerType,D),
+	    {_,#type{def=Def}=Type} = D#type.def,
+	    NameSuffix = asn1ct_gen:constructed_suffix(InnerType, Def),
+	    gen_types(Erules, [NameSuffix|Typename], Type, gen_decode);
 	'SET OF' ->
-	    Rtmod:gen_decode_sof(Erules,Typename,InnerType,D);
-	_ ->
-	    exit({nyi,InnerType})
+	    Rtmod:gen_decode_sof(Erules,Typename,InnerType,D),
+	    {_,#type{def=Def}=Type} = D#type.def,
+	    NameSuffix = asn1ct_gen:constructed_suffix(InnerType, Def),
+	    gen_types(Erules, [NameSuffix|Typename], Type, gen_decode)
     end;
 
-
 gen_decode_constructed(Erules,Typename,InnerType,D) when is_record(D,typedef) ->
     gen_decode_constructed(Erules,Typename,InnerType,D#typedef.typespec).
 
diff --git a/lib/asn1/src/asn1ct_gen_ber_bin_v2.erl b/lib/asn1/src/asn1ct_gen_ber_bin_v2.erl
index e51b0898be..37413298a7 100644
--- a/lib/asn1/src/asn1ct_gen_ber_bin_v2.erl
+++ b/lib/asn1/src/asn1ct_gen_ber_bin_v2.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2002-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2002-2014. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -24,7 +24,7 @@
 
 -include("asn1_records.hrl").
 
--export([decode_class/1, decode_type/1]).
+-export([decode_class/1]).
 -export([gen_encode/2,gen_encode/3,gen_decode/2,gen_decode/3]).
 -export([gen_encode_prim/4]).
 -export([gen_dec_prim/3]).
@@ -278,8 +278,7 @@ emit_enc_enumerated_cases(L, Tags) ->
     emit_enc_enumerated_cases(L, Tags, noext).
 
 emit_enc_enumerated_cases([{EnumName,EnumVal}|T], Tags, Ext) ->
-    Bytes = encode_pos_integer(EnumVal, []),
-    Len = length(Bytes),
+    {Bytes,Len} = encode_integer(EnumVal),
     emit([{asis,EnumName}," -> ",
 	  {call,ber,encode_tags,[Tags,{asis,Bytes},Len]},";",nl]),
     emit_enc_enumerated_cases(T, Tags, Ext);
@@ -288,10 +287,25 @@ emit_enc_enumerated_cases([], _Tags, _Ext) ->
     emit([{curr,enumval}," -> exit({error,{asn1, {enumerated_not_in_range,",{curr, enumval},"}}})"]),
     emit([nl,"end"]).
 
-encode_pos_integer(0, [B|_Acc] = L) when B < 128 ->
+encode_integer(Val) ->
+    Bytes =
+	if
+	    Val >= 0 ->
+		encode_integer_pos(Val, []);
+	    true ->
+		encode_integer_neg(Val, [])
+	end,
+    {Bytes,length(Bytes)}.
+
+encode_integer_pos(0, [B|_Acc]=L) when B < 128 ->
     L;
-encode_pos_integer(N, Acc) ->
-    encode_pos_integer(N bsr 8, [N band 255|Acc]).
+encode_integer_pos(N, Acc) ->
+    encode_integer_pos((N bsr 8), [N band 16#ff| Acc]).
+
+encode_integer_neg(-1, [B1|_T]=L) when B1 > 127 ->
+    L;
+encode_integer_neg(N, Acc) ->
+    encode_integer_neg(N bsr 8, [N band 16#ff|Acc]).
 
 %%===============================================================================
 %%===============================================================================
@@ -1179,23 +1193,25 @@ gen_objset_enc(_,_,{unique,undefined},_,_,_,_,_) ->
 gen_objset_enc(Erules, ObjSetName, UniqueName,
 	       [{ObjName,Val,Fields}|T], ClName, ClFields,
 	       NthObj,Acc)->
-    emit(["'getenc_",ObjSetName,"'(",{asis,Val},") ->",nl]),
     CurrMod = get(currmod),
     {InternalFunc,NewNthObj}=
 	case ObjName of
 	    {no_mod,no_name} ->
-		gen_inlined_enc_funs(Fields,ClFields,ObjSetName,NthObj);
+		gen_inlined_enc_funs(Fields, ClFields, ObjSetName, Val, NthObj);
 	    {CurrMod,Name} ->
-		emit({"    fun 'enc_",Name,"'/3"}),
+		emit(["'getenc_",ObjSetName,"'(",{asis,Val},") ->",nl,
+		      "    fun 'enc_",Name,"'/3;",nl]),
 		{[],NthObj};
 	    {ModuleName,Name} ->
+		emit(["'getenc_",ObjSetName,"'(",{asis,Val},") ->",nl]),
 		emit_ext_fun(enc,ModuleName,Name),
+		emit([";",nl]),
 		{[],NthObj};
 	    _ ->
-		emit({"    fun 'enc_",ObjName,"'/3"}),
+		emit(["'getenc_",ObjSetName,"'(",{asis,Val},") ->",nl,
+		      "    fun 'enc_",ObjName,"'/3;",nl]),
 		{[],NthObj}
 	end,
-    emit({";",nl}),
     gen_objset_enc(Erules, ObjSetName, UniqueName, T, ClName, ClFields,
 		   NewNthObj, InternalFunc ++ Acc);
 %% See X.681 Annex E for the following case
@@ -1223,13 +1239,14 @@ emit_default_getenc(ObjSetName,UniqueName) ->
 %% gen_inlined_enc_funs for each object iterates over all fields of a
 %% class, and for each typefield it checks if the object has that
 %% field and emits the proper code.
-gen_inlined_enc_funs(Fields, [{typefield,_,_}|_]=T, ObjSetName, NthObj) ->
-    emit([indent(3),"fun(Type, Val, _RestPrimFieldName) ->",nl,
+gen_inlined_enc_funs(Fields, [{typefield,_,_}|_]=T, ObjSetName, Val, NthObj) ->
+    emit(["'getenc_",ObjSetName,"'(",{asis,Val},") ->",nl,
+	  indent(3),"fun(Type, Val, _RestPrimFieldName) ->",nl,
 	  indent(6),"case Type of",nl]),
     gen_inlined_enc_funs1(Fields, T, ObjSetName, [], NthObj, []);
-gen_inlined_enc_funs(Fields,[_|Rest],ObjSetName,NthObj) ->
-    gen_inlined_enc_funs(Fields,Rest,ObjSetName,NthObj);
-gen_inlined_enc_funs(_,[],_,NthObj) ->
+gen_inlined_enc_funs(Fields, [_|Rest], ObjSetName, Val, NthObj) ->
+    gen_inlined_enc_funs(Fields, Rest, ObjSetName, Val, NthObj);
+gen_inlined_enc_funs(_, [], _, _, NthObj) ->
     {[],NthObj}.
 
 gen_inlined_enc_funs1(Fields, [{typefield,Name,_}|Rest], ObjSetName,
@@ -1276,7 +1293,7 @@ gen_inlined_enc_funs1(Fields,[_|Rest], ObjSetName, Sep, NthObj, Acc)->
     gen_inlined_enc_funs1(Fields, Rest, ObjSetName, Sep, NthObj, Acc);
 gen_inlined_enc_funs1(_, [], _, _, NthObj, Acc) ->
     emit([nl,indent(6),"end",nl,
-	  indent(3),"end"]),
+	  indent(3),"end;",nl]),
     {Acc,NthObj}.
 
 emit_enc_open_type(I) ->
@@ -1358,23 +1375,25 @@ gen_objset_dec(_,_,{unique,undefined},_,_,_,_) ->
     ok;
 gen_objset_dec(Erules, ObjSName, UniqueName, [{ObjName,Val,Fields}|T],
 	       ClName, ClFields, NthObj)->
-    emit(["'getdec_",ObjSName,"'(",{asis,Val},") ->",nl]),
     CurrMod = get(currmod),
     NewNthObj=
 	case ObjName of
 	    {no_mod,no_name} ->
-		gen_inlined_dec_funs(Fields,ClFields,ObjSName,NthObj);
+		gen_inlined_dec_funs(Fields,ClFields,ObjSName,Val,NthObj);
 	    {CurrMod,Name} ->
-		emit(["    fun 'dec_",Name,"'/3"]),
+		emit(["'getdec_",ObjSName,"'(",{asis,Val},") ->",nl,
+		      "    fun 'dec_",Name,"'/3;", nl]),
 		NthObj;
 	    {ModuleName,Name} ->
+		emit(["'getdec_",ObjSName,"'(",{asis,Val},") ->",nl]),
 		emit_ext_fun(dec,ModuleName,Name),
+		emit([";",nl]),
 		NthObj;
 	    _ ->
-		emit(["    fun 'dec_",ObjName,"'/3"]),
+		emit(["'getdec_",ObjSName,"'(",{asis,Val},") ->",nl,
+		      "    fun 'dec_",ObjName,"'/3;", nl]),
 		NthObj
 	end,
-    emit([";",nl]),
     gen_objset_dec(Erules, ObjSName, UniqueName, T, ClName,
 		   ClFields, NewNthObj);
 gen_objset_dec(_,ObjSetName,_UniqueName,['EXTENSIONMARK'],_ClName,
@@ -1394,10 +1413,15 @@ emit_default_getdec(ObjSetName,UniqueName) ->
     emit(["'getdec_",ObjSetName,"'(ErrV) ->",nl]),
     emit([indent(2), "fun(C,V,_) -> exit({{component,C},{value,V},{unique_name_and_value,",{asis,UniqueName},", ErrV}}) end"]).
 
-gen_inlined_dec_funs(Fields, ClFields, ObjSetName, NthObj) ->
+gen_inlined_dec_funs(Fields, [{typefield,_,_}|_]=ClFields, ObjSetName, Val, NthObj) ->
+    emit(["'getdec_",ObjSetName,"'(",{asis,Val},") ->",nl]),
     emit([indent(3),"fun(Type, Bytes, _RestPrimFieldName) ->",nl,
 	  indent(6),"case Type of",nl]),
-    gen_inlined_dec_funs1(Fields, ClFields, ObjSetName, "", NthObj).
+    gen_inlined_dec_funs1(Fields, ClFields, ObjSetName, "", NthObj);
+gen_inlined_dec_funs(Fields, [_|ClFields], ObjSetName, Val, NthObj) ->
+    gen_inlined_dec_funs(Fields, ClFields, ObjSetName, Val, NthObj);
+gen_inlined_dec_funs(_, _, _, _,NthObj) ->
+    NthObj.
 
 gen_inlined_dec_funs1(Fields, [{typefield,Name,Prop}|Rest],
 		      ObjSetName, Sep0, NthObj) ->
@@ -1439,7 +1463,7 @@ gen_inlined_dec_funs1(Fields, [_|Rest], ObjSetName, Sep, NthObj)->
     gen_inlined_dec_funs1(Fields, Rest, ObjSetName, Sep, NthObj);
 gen_inlined_dec_funs1(_, [], _, _, NthObj) ->
     emit([nl,indent(6),"end",nl,
-	  indent(3),"end"]),
+	  indent(3),"end;",nl]),
     NthObj.
 
 emit_dec_open_type(I) ->
@@ -1534,39 +1558,6 @@ decode_class('CONTEXT') ->
 decode_class('PRIVATE') ->
     ?PRIVATE.
 
-decode_type('BOOLEAN') -> 1;
-decode_type('INTEGER') -> 2;
-decode_type('BIT STRING') -> 3; 
-decode_type('OCTET STRING') -> 4; 
-decode_type('NULL') -> 5;
-decode_type('OBJECT IDENTIFIER') -> 6;
-decode_type('ObjectDescriptor') -> 7;
-decode_type('EXTERNAL') -> 8;
-decode_type('REAL') -> 9;
-decode_type('ENUMERATED') -> 10;
-decode_type('EMBEDDED_PDV') -> 11;
-decode_type('UTF8String') -> 12;
-decode_type('RELATIVE-OID') -> 13;
-decode_type('SEQUENCE') -> 16;
-decode_type('SEQUENCE OF') -> 16;
-decode_type('SET') -> 17;
-decode_type('SET OF') -> 17;
-decode_type('NumericString') -> 18;  
-decode_type('PrintableString') -> 19;  
-decode_type('TeletexString') -> 20;  
-decode_type('T61String') -> 20;
-decode_type('VideotexString') -> 21;  
-decode_type('IA5String') -> 22;  
-decode_type('UTCTime') -> 23;  
-decode_type('GeneralizedTime') -> 24;  
-decode_type('GraphicString') -> 25;  
-decode_type('VisibleString') -> 26;  
-decode_type('GeneralString') -> 27;  
-decode_type('UniversalString') -> 28;  
-decode_type('BMPString') -> 30;
-decode_type('CHOICE') -> 'CHOICE'; % choice gets the tag from the actual alternative  
-decode_type(Else) -> exit({error,{asn1,{unrecognized_type,Else}}}).
-
 mkfuncname(#'Externaltypereference'{module=Mod,type=EType}, DecOrEnc) ->
     CurrMod = get(currmod),
     case CurrMod of
diff --git a/lib/asn1/src/asn1ct_imm.erl b/lib/asn1/src/asn1ct_imm.erl
index bdd14871d1..5297d5291c 100644
--- a/lib/asn1/src/asn1ct_imm.erl
+++ b/lib/asn1/src/asn1ct_imm.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2012-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2012-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -499,6 +499,8 @@ per_dec_enumerated_fix_list([], Tail, _) -> Tail.
 
 per_dec_integer_1([{'SingleValue',Value}], _Aligned) ->
     {value,Value};
+per_dec_integer_1([{'ValueRange',{'MIN',_}}], Aligned) ->
+    per_dec_unconstrained(Aligned);
 per_dec_integer_1([{'ValueRange',{Lb,'MAX'}}], Aligned) when is_integer(Lb) ->
     per_decode_semi_constrained(Lb, Aligned);
 per_dec_integer_1([{'ValueRange',{Lb,Ub}}], Aligned) when is_integer(Lb),
@@ -1094,6 +1096,9 @@ per_enc_integer_1(Val0, [Constr], Aligned) ->
 
 per_enc_integer_2(Val, {'SingleValue',Sv}, Aligned) when is_integer(Sv) ->
     per_enc_constrained(Val, Sv, Sv, Aligned);
+per_enc_integer_2(Val, {'ValueRange',{'MIN',Ub}}, Aligned)
+  when is_integer(Ub) ->
+    {[],{lt,Val,Ub+1},per_enc_unconstrained(Val, Aligned)};
 per_enc_integer_2(Val0, {'ValueRange',{Lb,'MAX'}}, Aligned)
   when is_integer(Lb) ->
     {Prefix,Val} = sub_lb(Val0, Lb),
@@ -1580,7 +1585,7 @@ do_combine_put_bits(_, _, _) ->
     throw(impossible).
 
 debit(Budget0, Alternatives) ->
-    case Budget0 - log2(Alternatives) of
+    case Budget0 - math:log2(Alternatives) of
 	Budget when Budget > 0.0 ->
 	    Budget;
 	_ ->
@@ -1593,8 +1598,6 @@ num_clauses([_|T], N) ->
     num_clauses(T, N+1);
 num_clauses([], N) -> N.
 
-log2(N) ->
-    math:log(N) / math:log(2.0).
 
 collect_put_bits(Imm) ->
     lists:splitwith(fun({put_bits,V,_,_}) when is_integer(V) -> true;
@@ -1919,16 +1922,7 @@ enc_opt(nil, St) ->
 enc_opt({seq,H0,T0}, St0) ->
     {H,St1} = enc_opt(H0, St0),
     {T,St} = enc_opt(T0, St1),
-    case {H,T} of
-	{none,_} ->
-	    {T,St};
-	{{list,Imm,Data},
-	 {seq,{call,per,complete,[Data],_},_}} ->
-	    %% Get rid of any explicit 'align' added by per_enc_open_type/2.
-	    {{seq,{list,remove_trailing_align(Imm),Data},T},St};
-	{_,_} ->
-	    {{seq,H,T},St}
-    end;
+    {enc_opt_seq(H, T),St};
 enc_opt({set,_,_}=Imm, St) ->
     {Imm,St#ost{t=undefined}};
 enc_opt({sub,Src0,Int,Dst}, St0) ->
@@ -1962,6 +1956,28 @@ remove_trailing_align({seq,H,T}) ->
     {seq,H,remove_trailing_align(T)};
 remove_trailing_align(Imm) -> Imm.
 
+enc_opt_seq(none, T) ->
+    T;
+enc_opt_seq({list,Imm,Data}, {seq,{call,per,complete,[Data],_},_}=T) ->
+    %% Get rid of any explicit 'align' added by per_enc_open_type/2.
+    {seq,{list,remove_trailing_align(Imm),Data},T};
+enc_opt_seq({call,_,_,_,{var,_}=Dst}=H, T) ->
+    case is_var_unused(Dst, T) of
+	false -> {seq,H,T};
+	true -> T
+    end;
+enc_opt_seq(H, T) ->
+    {seq,H,T}.
+
+is_var_unused(_, align) ->
+    true;
+is_var_unused(V, {call,_,_,Args}) ->
+    not lists:member(V, Args);
+is_var_unused(V, {cons,H,T}) ->
+    is_var_unused(V, H) andalso is_var_unused(V, T);
+is_var_unused(_, _) ->
+    false.
+
 bit_size_propagate(Bin, Type, St) ->
     case t_range(Type) of
 	any ->
@@ -2423,7 +2439,8 @@ bit_string_name2pos_fun(NNL, Src) ->
 gen_name2pos(Fd, Name, Names) ->
     Cs0 = gen_name2pos_cs(Names, Name),
     Cs = Cs0 ++ [bit_clause(Name),nil_clause(),invalid_clause()],
-    F = {function,1,Name,1,Cs},
+    F0 = {function,1,Name,1,Cs},
+    F = erl_parse:new_anno(F0),
     file:write(Fd, [erl_pp:function(F)]).
 
 gen_name2pos_cs([{K,V}|T], Name) ->
diff --git a/lib/asn1/src/asn1ct_parser.yrl b/lib/asn1/src/asn1ct_parser.yrl
deleted file mode 100644
index 083162f191..0000000000
--- a/lib/asn1/src/asn1ct_parser.yrl
+++ /dev/null
@@ -1,1177 +0,0 @@
-%%<copyright>
-%% <year>1997-2008</year>
-%% <holder>Ericsson AB, All Rights Reserved</holder>
-%%</copyright>
-%%<legalnotice>
-%% The contents of this file are subject to the Erlang Public License,
-%% Version 1.1, (the "License"); you may not use this file except in
-%% compliance with the License. You should have received a copy of the
-%% Erlang Public License along with this software. If not, it can be
-%% retrieved online at http://www.erlang.org/.
-%%
-%% Software distributed under the License is distributed on an "AS IS"
-%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-%% the License for the specific language governing rights and limitations
-%% under the License.
-%%
-%% The Initial Developer of the Original Code is Ericsson AB.
-%%</legalnotice>

-%%

-Nonterminals

-ModuleDefinition ModuleIdentifier DefinitiveIdentifier DefinitiveObjIdComponentList

-DefinitiveObjIdComponent TagDefault ExtensionDefault 

-ModuleBody Exports SymbolsExported Imports SymbolsImported

-SymbolsFromModuleList SymbolsFromModule GlobalModuleReference AssignedIdentifier SymbolList

-Symbol Reference AssignmentList Assignment 

-ExtensionAndException

-ComponentTypeLists

-Externaltypereference Externalvaluereference DefinedType DefinedValue 

-AbsoluteReference ItemSpec ItemId ComponentId TypeAssignment

-ValueAssignment 

-% ValueSetTypeAssignment 

-ValueSet 

-Type BuiltinType NamedType ReferencedType

-Value ValueNotNull BuiltinValue ReferencedValue NamedValue 

-% BooleanType

-BooleanValue IntegerType NamedNumberList NamedNumber SignedNumber 

-% inlined IntegerValue 

-EnumeratedType

-% inlined Enumerations 

-Enumeration EnumerationItem 

-% inlined EnumeratedValue

-% RealType

-RealValue NumericRealValue SpecialRealValue BitStringType 

-% inlined BitStringValue

-IdentifierList 

-% OctetStringType 

-% inlined OctetStringValue 

-% NullType NullValue

-SequenceType ComponentTypeList ComponentType 

-% SequenceValue SequenceOfValue

-ComponentValueList SequenceOfType

-SAndSOfValue ValueList SetType 

-% SetValue SetOfValue 

-SetOfType 

-ChoiceType 

-% AlternativeTypeList made common with ComponentTypeList

-ChoiceValue

-AnyValue

-AnyDefBy

-SelectionType 

-TaggedType Tag ClassNumber Class 

-% redundant TaggedValue

-% EmbeddedPDVType EmbeddedPDVValue ExternalType ExternalValue ObjectIdentifierType

-ObjectIdentifierValue ObjIdComponentList ObjIdComponent 

-% NameForm NumberForm NameAndNumberForm 

-CharacterStringType

-RestrictedCharacterStringValue CharacterStringList 

-% CharSyms CharsDefn 

-Quadruple

-% Group Plane Row Cell

-Tuple

-% TableColumn TableRow

-% UnrestrictedCharacterString

-CharacterStringValue 

-% UnrestrictedCharacterStringValue

-ConstrainedType Constraint ConstraintSpec TypeWithConstraint

-ElementSetSpecs ElementSetSpec 

-%GeneralConstraint

-UserDefinedConstraint UserDefinedConstraintParameter 

-UserDefinedConstraintParameters

-ExceptionSpec

-ExceptionIdentification

-Unions

-UnionMark

-UElems

-Intersections

-IntersectionElements

-IntersectionMark

-IElems

-Elements

-Elems

-SubTypeElements

-Exclusions

-LowerEndpoint

-UpperEndpoint

-LowerEndValue

-UpperEndValue

-TypeConstraints NamedConstraint PresenceConstraint

-

-ParameterizedTypeAssignment

-ParameterList

-Parameters

-Parameter

-ParameterizedType

-

-% X.681

-ObjectClassAssignment ObjectClass ObjectClassDefn 

-FieldSpecs FieldSpec OptionalitySpec WithSyntaxSpec

-TokenOrGroupSpecs TokenOrGroupSpec

-SyntaxList OptionalGroup RequiredToken Word

-TypeOptionalitySpec

-ValueOrObjectOptSpec

-VSetOrOSetOptSpec

-ValueOptionalitySpec

-ObjectOptionalitySpec

-ValueSetOptionalitySpec

-ObjectSetOptionalitySpec

-% X.681 chapter 15

-InformationFromObjects

-ValueFromObject

-%ValueSetFromObjects

-TypeFromObject

-%ObjectFromObject

-%ObjectSetFromObjects

-ReferencedObjects

-FieldName

-PrimitiveFieldName

-

-ObjectAssignment

-ObjectSetAssignment

-ObjectSet

-ObjectSetElements

-Object

-ObjectDefn

-DefaultSyntax

-DefinedSyntax

-FieldSettings

-FieldSetting

-DefinedSyntaxTokens

-DefinedSyntaxToken

-Setting

-DefinedObject

-ObjectFromObject

-ObjectSetFromObjects

-ParameterizedObject

-ExternalObjectReference

-DefinedObjectSet

-DefinedObjectClass

-ExternalObjectClassReference

-

-% X.682

-TableConstraint

-ComponentRelationConstraint

-ComponentIdList

-

-% X.683

-ActualParameter

-.

-

-%UsefulType. 

-

-Terminals

-'ABSENT' 'ABSTRACT-SYNTAX' 'ALL' 'ANY'

-'APPLICATION' 'AUTOMATIC' 'BEGIN' 'BIT'

-'BOOLEAN' 'BY' 'CHARACTER' 'CHOICE' 'CLASS' 'COMPONENT'

-'COMPONENTS' 'CONSTRAINED' 'DEFAULT' 'DEFINED' 'DEFINITIONS'

-'EMBEDDED' 'END' 'ENUMERATED' 'EXCEPT' 'EXPLICIT'

-'EXPORTS' 'EXTENSIBILITY' 'EXTERNAL' 'FALSE' 'FROM' 'GeneralizedTime' 

-'TYPE-IDENTIFIER' 

-'IDENTIFIER' 'IMPLICIT' 'IMPLIED' 'IMPORTS'

-'INCLUDES' 'INSTANCE' 'INTEGER' 'INTERSECTION'

-'MAX' 'MIN' 'MINUS-INFINITY' 'NULL'

-'OBJECT' 'ObjectDescriptor' 'OCTET' 'OF' 'OPTIONAL' 'PDV' 'PLUS-INFINITY'

-'PRESENT' 'PRIVATE' 'REAL' 'SEQUENCE' 'SET' 'SIZE'

-'STRING' 'SYNTAX' 'TAGS' 'TRUE' 'UNION'

-'UNIQUE' 'UNIVERSAL' 'UTCTime' 'WITH'

-'{' '}' '(' ')' '.' '::=' ';' ',' '@' '*' '-' '[' ']'

-'!' '..' '...' '|' '<' ':' '^'

-number identifier typereference restrictedcharacterstringtype 

-bstring hstring cstring typefieldreference valuefieldreference

-objectclassreference word.

-

-Rootsymbol ModuleDefinition.

-Endsymbol '$end'.

-

-Left 300 'EXCEPT'.

-Left 200 '^'.

-Left 200 'INTERSECTION'.

-Left 100 '|'.

-Left 100 'UNION'.

-

-

-ModuleDefinition -> ModuleIdentifier

-	'DEFINITIONS'

-	TagDefault

-	ExtensionDefault

-	'::='

-	'BEGIN'

-	ModuleBody

-	'END' : 

-		{'ModuleBody',Ex,Im,Types} = '$7',

-		{{typereference,Pos,Name},Defid} = '$1',

-		#module{

-			pos= Pos,

-			name= Name,

-			defid= Defid,

-			tagdefault='$3',

-			extensiondefault='$4',

-			exports=Ex,

-			imports=Im,

-			typeorval=Types}.

-%	{module, '$1','$3','$6'}.

-% Results always in a record of type module defined in asn_records.hlr

-

-ModuleIdentifier -> typereference DefinitiveIdentifier : 

-	put(asn1_module,'$1'#typereference.val),

-	{'$1','$2'}.

-

-DefinitiveIdentifier -> '{' DefinitiveObjIdComponentList '}' : '$2' .

-DefinitiveIdentifier -> '$empty': [].

-

-DefinitiveObjIdComponentList -> DefinitiveObjIdComponent : ['$1'].

-DefinitiveObjIdComponentList -> DefinitiveObjIdComponent DefinitiveObjIdComponentList : ['$1'|'$2'].

-

-DefinitiveObjIdComponent -> identifier : '$1' . %expanded->

-% DefinitiveObjIdComponent -> NameForm : '$1' . 

-DefinitiveObjIdComponent -> number : '$1' . %expanded->

-% DefinitiveObjIdComponent -> DefinitiveNumberForm : 'fix' . 

-DefinitiveObjIdComponent -> identifier '(' number ')' : {'$1','$3'} . %expanded->

-% DefinitiveObjIdComponent -> DefinitiveNameAndNumberForm  : {'$1','$3'} .

-

-% DefinitiveNumberForm -> number : 'fix' .

- 

-% DefinitiveNameAndNumberForm -> identifier '(' DefinitiveNumberForm ')' : 'fix' .

- 

-TagDefault -> 'EXPLICIT' 'TAGS' : put(tagdefault,'EXPLICIT'),'EXPLICIT' .

-TagDefault -> 'IMPLICIT' 'TAGS' : put(tagdefault,'IMPLICIT'),'IMPLICIT' .

-TagDefault -> 'AUTOMATIC' 'TAGS' : put(tagdefault,'AUTOMATIC'),'AUTOMATIC' .

-TagDefault -> '$empty': put(tagdefault,'EXPLICIT'),'EXPLICIT'. % because this is the default

-

-ExtensionDefault -> 'EXTENSIBILITY' 'IMPLIED' : 'IMPLIED'.

-ExtensionDefault -> '$empty' : 'false'. % because this is the default

-

-ModuleBody -> Exports Imports AssignmentList : {'ModuleBody','$1','$2','$3'}.

-ModuleBody -> '$empty' : {'ModuleBody',nil,nil,[]}.

-

-Exports -> 'EXPORTS' SymbolList ';' : {exports,'$2'}.

-Exports -> 'EXPORTS'  ';' : {exports,[]}.

-Exports -> '$empty' : {exports,all} .

-

-% inlined above SymbolsExported -> SymbolList : '$1'.

-% inlined above SymbolsExported -> '$empty' : [].

-

-Imports -> 'IMPORTS' SymbolsFromModuleList ';' : {imports,'$2'}.

-Imports -> 'IMPORTS'  ';' : {imports,[]}.

-Imports -> '$empty' : {imports,[]} .

-

-% inlined above SymbolsImported -> SymbolsFromModuleList : '$1'.

-% inlined above SymbolsImported -> '$empty' : [].

-

-SymbolsFromModuleList -> SymbolsFromModule :['$1'].

-% SymbolsFromModuleList -> SymbolsFromModuleList SymbolsFromModule :$1.%changed

-SymbolsFromModuleList -> SymbolsFromModule SymbolsFromModuleList :['$1'|'$2'].

-

-% expanded SymbolsFromModule -> SymbolList 'FROM' GlobalModuleReference : #'SymbolsFromModule'{symbols = '$1',module='$3'}.

-SymbolsFromModule -> SymbolList 'FROM' typereference : #'SymbolsFromModule'{symbols = '$1',module='$3'}.

-SymbolsFromModule -> SymbolList 'FROM' typereference '{' ValueList '}': #'SymbolsFromModule'{symbols = '$1',module='$3'}.

-%SymbolsFromModule -> SymbolList 'FROM' typereference identifier: #'SymbolsFromModule'{symbols = '$1',module='$3'}.

-%SymbolsFromModule -> SymbolList 'FROM' typereference Externalvaluereference: #'SymbolsFromModule'{symbols = '$1',module='$3'}.

-%SymbolsFromModule -> SymbolList 'FROM' typereference DefinedValue: #'SymbolsFromModule'{symbols = '$1',module='$3'}.

-

-% inlined GlobalModuleReference -> typereference AssignedIdentifier : {'$1','$2'} .

-

-% inlined above AssignedIdentifier -> '{' ValueList '}' : '$2'.

-% replaced AssignedIdentifier -> '{' DefinedValue ObjIdComponentList '}' :{'$2','$3'}.

-% not necessary , replaced by SAndSOfValue AssignedIdentifier -> ObjectIdentifierValue :'$1'.

-% AssignedIdentifier -> DefinedValue : '$1'. 

-% inlined AssignedIdentifier -> '$empty' : undefined.

-

-SymbolList -> Symbol : ['$1'].

-SymbolList -> Symbol ',' SymbolList :['$1'|'$3'].

-

-Symbol -> Reference :'$1'.

-% later Symbol -> ParameterizedReference :'$1'.

-

-Reference -> typereference :'$1'.

-Reference -> identifier:'$1'.

-Reference -> typereference '{' '}':'$1'.

-Reference -> Externaltypereference '{' '}':'$1'.

-

-% later Reference -> objectclassreference :'$1'.

-% later Reference -> objectreference :'$1'.

-% later Reference -> objectsetreference :'$1'.

-

-AssignmentList -> Assignment : ['$1'].

-% modified AssignmentList -> AssignmentList Assignment : '$1'.

-AssignmentList -> Assignment AssignmentList : ['$1'|'$2'].

-

-Assignment -> TypeAssignment : '$1'.

-Assignment -> ValueAssignment : '$1'.

-% later Assignment -> ValueSetTypeAssignment : '$1'.

-Assignment -> ObjectClassAssignment : '$1'.

-% later Assignment -> ObjectAssignment : '$1'.

-% combined with ValueAssignment Assignment -> ObjectAssignment : '$1'.

-Assignment -> ObjectSetAssignment : '$1'.

-Assignment -> ParameterizedTypeAssignment : '$1'.

-%Assignment -> ParameterizedValueAssignment : '$1'.

-%Assignment -> ParameterizedValueSetTypeAssignment : '$1'.

-%Assignment -> ParameterizedObjectClassAssignment : '$1'.

-

-ObjectClassAssignment -> typereference '::=' 'CLASS' '{' FieldSpecs '}' :

-%ObjectClassAssignment -> objectclassreference '::=' 'CLASS' '{' FieldSpecs '}' :

-	#typedef{pos=element(2,'$1'),name=element(3,'$1'),typespec={'CLASS','$5',[]}}.

-ObjectClassAssignment -> typereference '::=' 'CLASS' '{' FieldSpecs '}' WithSyntaxSpec :

-%ObjectClassAssignment -> objectclassreference '::=' 'CLASS' '{' FieldSpecs '}' WithSyntaxSpec :

-	#typedef{pos=element(2,'$1'),name=element(3,'$1'),typespec={'CLASS','$5','$7'}}.

-

-FieldSpecs -> FieldSpec : ['$1'].

-FieldSpecs -> FieldSpec ',' FieldSpecs : ['$1'|'$3'].

-

-FieldSpec -> typefieldreference TypeOptionalitySpec : {typefield,'$1','$2'}.

-

-FieldSpec -> valuefieldreference Type 'UNIQUE' ValueOrObjectOptSpec : 

-	{fixedtypevaluefield,'$1','$2','UNIQUE','$4'}.

-FieldSpec -> valuefieldreference Type ValueOrObjectOptSpec : 

-	{fixedtypevaluefield,'$1','$2',undefined,'$3'}.

-

-FieldSpec -> valuefieldreference typefieldreference ValueOrObjectOptSpec :

-        {variabletypevaluefield, '$1','$2','$3'}.

-

-FieldSpec -> typefieldreference typefieldreference VSetOrOSetOptSpec : 

-        {variabletypevaluesetfield, '$1','$2','$3'}.

-

-FieldSpec -> typefieldreference Type VSetOrOSetOptSpec :

-        {fixedtypevaluesetfield, '$1','$2','$3'}.

-

-TypeOptionalitySpec -> 'DEFAULT' Type : {'DEFAULT','$2'}.

-TypeOptionalitySpec -> 'OPTIONAL' : 'OPTIONAL'.

-TypeOptionalitySpec -> '$empty' : 'MANDATORY'.

-

-ValueOrObjectOptSpec -> ValueOptionalitySpec : '$1'.

-ValueOrObjectOptSpec -> ObjectOptionalitySpec : '$1'.

-ValueOrObjectOptSpec -> 'OPTIONAL' : 'OPTIONAL'.

-ValueOrObjectOptSpec -> '$empty' : 'MANDATORY'.

-

-ValueOptionalitySpec -> 'DEFAULT' Value :

-	case '$2' of

-	{identifier,_,Id} -> {'DEFAULT',Id};

-	_ -> {'DEFAULT','$2'}

-	end.

-

-%ObjectOptionalitySpec -> 'DEFAULT' Object :{'DEFAULT','$1'}.

-ObjectOptionalitySpec -> 'DEFAULT'  '{' FieldSetting ',' FieldSettings '}' : 

-        {'DEFAULT',{object,['$2'|'$4']}}.

-ObjectOptionalitySpec -> 'DEFAULT'  '{' FieldSetting '}' :

-        {'DEFAULT',{object, ['$2']}}.

-%ObjectOptionalitySpec -> 'DEFAULT'  '{' DefinedSyntaxTokens '}' :

-%        {'DEFAULT',{object, '$2'}}.

-ObjectOptionalitySpec -> 'DEFAULT'  ObjectFromObject :

-        {'DEFAULT',{object, '$2'}}.

-

-

-VSetOrOSetOptSpec -> ValueSetOptionalitySpec : '$1'.

-%VSetOrOSetOptSpec -> ObjectSetOptionalitySpec : '$1'.

-VSetOrOSetOptSpec -> 'OPTIONAL' : 'OPTIONAL'.

-VSetOrOSetOptSpec -> '$empty' : 'MANDATORY'.

-

-ValueSetOptionalitySpec -> 'DEFAULT' ValueSet : {'DEFAULT','$1'}.

-

-%ObjectSetOptionalitySpec -> 'DEFAULT' ObjectSet : {'DEFAULT','$1'}.

-

-OptionalitySpec -> 'DEFAULT' Type : {'DEFAULT','$2'}.

-OptionalitySpec -> 'DEFAULT' ValueNotNull : 

-	case '$2' of

-	{identifier,_,Id} -> {'DEFAULT',Id};

-	_ -> {'DEFAULT','$2'}

-	end.

-OptionalitySpec -> 'OPTIONAL' : 'OPTIONAL'.

-OptionalitySpec -> '$empty' : 'MANDATORY'.

-

-WithSyntaxSpec -> 'WITH' 'SYNTAX' SyntaxList : {'WITH SYNTAX','$3'}.

-

-SyntaxList -> '{' TokenOrGroupSpecs '}' : '$2'.

-SyntaxList -> '{' '}' : [].

-

-TokenOrGroupSpecs -> TokenOrGroupSpec : ['$1'].

-TokenOrGroupSpecs -> TokenOrGroupSpec TokenOrGroupSpecs : ['$1'|'$2'].

-

-TokenOrGroupSpec -> RequiredToken : '$1'.

-TokenOrGroupSpec -> OptionalGroup : '$1'.

-

-OptionalGroup -> '[' TokenOrGroupSpecs ']' : '$2'.

-

-RequiredToken -> typereference : '$1'.

-RequiredToken -> Word : '$1'.

-RequiredToken -> ',' : '$1'.

-RequiredToken -> PrimitiveFieldName : '$1'.

-

-Word -> 'BY' : 'BY'.

- 

-ParameterizedTypeAssignment -> typereference ParameterList '::=' Type : 

-	#ptypedef{pos=element(2,'$1'),name=element(3,'$1'),

-	args='$2', typespec='$4'}.

-

-ParameterList -> '{' Parameters '}':'$2'.

-

-Parameters -> Parameter: ['$1'].

-Parameters -> Parameter ',' Parameters: ['$1'|'$3'].

-

-Parameter -> typereference: '$1'.

-Parameter -> Value: '$1'.

-Parameter -> Type ':' typereference: {'$1','$3'}.

-Parameter -> Type ':' Value: {'$1','$3'}.

-Parameter -> '{' typereference '}': {objectset,'$2'}.

-

-

-% Externaltypereference -> modulereference '.' typereference : {'$1','$3'} .

-Externaltypereference -> typereference '.' typereference : #'Externaltypereference'{pos=element(2,'$1'),module=element(3,'$1'),type=element(3,'$3')}.

-

-% Externalvaluereference -> modulereference '.' valuereference : {'$1','$3'} .

-% inlined Externalvaluereference -> typereference '.' identifier : #'Externalvaluereference'{pos=element(2,'$1'),module=element(3,'$1'),value=element(3,'$3')}.

-

-

-DefinedType -> Externaltypereference : '$1' .

-DefinedType -> typereference : 

-	#'Externaltypereference'{pos='$1'#typereference.pos,

-				module= get(asn1_module), 

-				type= '$1'#typereference.val} .

-DefinedType -> typereference ParameterList : {pt,'$1','$2'}.

-DefinedType -> Externaltypereference ParameterList : {pt,'$1','$2'}.

-

-% ActualParameterList -> '{' ActualParameters '}' : '$1'.

-

-% ActualParameters -> ActualParameter : ['$1']. 

-% ActualParameters -> ActualParameter ',' ActualParameters : ['$1'|'$3'].

-

-ActualParameter -> Type : '$1'. 

-ActualParameter -> ValueNotNull : '$1'. 

-ActualParameter -> ValueSet : '$1'. 

-% later DefinedType -> ParameterizedType : '$1' .

-% later DefinedType -> ParameterizedValueSetType : '$1' .

-

-% inlined DefinedValue -> Externalvaluereference :'$1'.

-% inlined DefinedValue -> identifier :'$1'.

-% later DefinedValue -> ParameterizedValue :'$1'.

-

-% not referenced yet AbsoluteReference -> '@' GlobalModuleReference '.' ItemSpec :{'$2','$4'}.

-

-% not referenced yet ItemSpec -> typereference :'$1'.

-% not referenced yet ItemSpec -> ItemId '.' ComponentId : {'$1','$3'}.

-

-% not referenced yet ItemId -> ItemSpec : '$1'.

-

-% not referenced yet ComponentId -> identifier :'$1'.

-% not referenced yet ComponentId -> number :'$1'.

-% not referenced yet ComponentId -> '*' :'$1'.

-

-TypeAssignment -> typereference '::=' Type :

-	#typedef{pos=element(2,'$1'),name=element(3,'$1'),typespec='$3'}.

-

-ValueAssignment -> identifier Type '::=' Value :

-	#valuedef{pos=element(2,'$1'),name=element(3,'$1'),type='$2',value='$4'}.

-

-% later ValueSetTypeAssignment -> typereference Type '::=' ValueSet :{'ValueSetTypeAssignment','$1','$2','$4'}.

-

-

-ValueSet -> '{' ElementSetSpec '}' : {valueset,'$2'}.

-

-% record(type,{tag,def,constraint}).

-Type -> BuiltinType :#type{def='$1'}.

-Type -> 'NULL' :#type{def='NULL'}.

-Type -> TaggedType:'$1'.

-Type -> ReferencedType:#type{def='$1'}. % change notag later

-Type -> ConstrainedType:'$1'.

-

-%ANY is here for compatibility with the old ASN.1 standard from 1988

-BuiltinType -> 'ANY' AnyDefBy: 

-	case '$2' of

-		[] -> 'ANY';

-	        _ -> {'ANY DEFINED BY','$2'}

-        end.	

-BuiltinType -> BitStringType :'$1'.

-BuiltinType -> 'BOOLEAN' :element(1,'$1').

-BuiltinType -> CharacterStringType :'$1'.

-BuiltinType -> ChoiceType :'$1'.

-BuiltinType -> 'EMBEDDED' 'PDV' :'EMBEDDED PDV'.

-BuiltinType -> EnumeratedType :'$1'.

-BuiltinType -> 'EXTERNAL' :element(1,'$1').

-% later BuiltinType -> InstanceOfType :'$1'.

-BuiltinType -> IntegerType :'$1'.

-% BuiltinType -> 'NULL' :element(1,'$1').

-% later BuiltinType -> ObjectClassFieldType :'$1'.

-BuiltinType -> 'OBJECT' 'IDENTIFIER' :'OBJECT IDENTIFIER'.

-BuiltinType -> 'OCTET' 'STRING' :'OCTET STRING'.

-BuiltinType -> 'REAL' :element(1,'$1').

-BuiltinType -> SequenceType :'$1'.

-BuiltinType -> SequenceOfType :'$1'.

-BuiltinType -> SetType :'$1'.

-BuiltinType -> SetOfType :'$1'.

-% The so called Useful types

-BuiltinType -> 'GeneralizedTime': 'GeneralizedTime'.

-BuiltinType -> 'UTCTime' :'UTCTime'.

-BuiltinType -> 'ObjectDescriptor' : 'ObjectDescriptor'.

-

-% moved BuiltinType -> TaggedType :'$1'.

-

-

-AnyDefBy -> 'DEFINED' 'BY' identifier: '$3'.

-AnyDefBy -> '$empty': [].

-

-NamedType -> identifier Type :

-%{_,Pos,Val} = '$1',

-%{'NamedType',Pos,{Val,'$2'}}.

-V1 = '$1', 

-{'NamedType',V1#identifier.pos,{V1#identifier.val,'$2'}}.

-NamedType -> SelectionType :'$1'.

-

-ReferencedType -> DefinedType : '$1'.

-% redundant ReferencedType -> UsefulType : 'fix'.

-ReferencedType -> SelectionType : '$1'.

-ReferencedType -> TypeFromObject : '$1'.

-% later ReferencedType -> ValueSetFromObjects : 'fix'.

-

-% to much conflicts Value -> AnyValue :'$1'.

-Value -> ValueNotNull : '$1'.

-Value -> 'NULL' :element(1,'$1').

-

-ValueNotNull -> BuiltinValue :'$1'.

-% inlined Value -> DefinedValue :'$1'. % DefinedValue , identifier

-% inlined Externalvaluereference -> Externalvaluereference :'$1'.

-ValueNotNull -> typereference '.' identifier : 

-	#'Externalvaluereference'{pos=element(2,'$1'),module=element(3,'$1'),

-	value=element(3,'$3')}.

-ValueNotNull -> identifier :'$1'.

-

-

-%tmp Value -> NamedNumber: '$1'. % not a value but part of ObjIdC

-% redundant BuiltinValue -> BitStringValue :'$1'.

-BuiltinValue -> BooleanValue :'$1'.

-BuiltinValue -> CharacterStringValue :'$1'.

-BuiltinValue -> ChoiceValue :'$1'.

-% BuiltinValue -> EmbeddedPDVValue :'$1'. ==SequenceValue

-% BuiltinValue -> EnumeratedValue :'$1'. identifier

-% BuiltinValue -> ExternalValue :'$1'. ==SequenceValue

-% later BuiltinValue -> InstanceOfValue :'$1'.

-BuiltinValue -> SignedNumber :'$1'.

-% BuiltinValue -> 'NULL' :'$1'.

-% later BuiltinValue -> ObjectClassFieldValue :'$1'.

-% replaced by SAndSOfValue BuiltinValue -> ObjectIdentifierValue :'$1'.

-BuiltinValue -> bstring :element(3,'$1').

-BuiltinValue -> hstring :element(3,'$1').

-% conflict BuiltinValue -> RealValue :'$1'.

-BuiltinValue -> SAndSOfValue :'$1'.

-% replaced BuiltinValue -> SequenceOfValue :'$1'.

-% replaced BuiltinValue -> SequenceValue :'$1'.

-% replaced BuiltinValue -> SetValue :'$1'.

-% replaced BuiltinValue -> SetOfValue :'$1'.

-% conflict redundant BuiltinValue -> TaggedValue :'$1'.

-

-% inlined ReferencedValue -> DefinedValue:'$1'.

-% ReferencedValue -> Externalvaluereference:'$1'.

-% ReferencedValue -> identifier :'$1'. 

-% later ReferencedValue -> ValueFromObject:'$1'.

-

-% inlined BooleanType -> BOOLEAN :'BOOLEAN'.

-

-% to much conflicts AnyValue -> Type ':' Value : {'ANYVALUE',{'$1','$3'}}.

-

-BooleanValue -> TRUE :true.

-BooleanValue -> FALSE :false.

-

-IntegerType -> 'INTEGER' : 'INTEGER'.

-IntegerType -> 'INTEGER' '{' NamedNumberList '}' : {'INTEGER','$3'}.

-

-NamedNumberList -> NamedNumber :['$1'].

-% modified NamedNumberList -> NamedNumberList ',' NamedNumber :'fix'.

-NamedNumberList -> NamedNumber ',' NamedNumberList :['$1'|'$3'].

-

-NamedNumber -> identifier '(' SignedNumber ')' : {'NamedNumber',element(3,'$1'),'$3'}.

-NamedNumber -> identifier '(' typereference '.' identifier ')' : {'NamedNumber',element(3,'$1'),{'ExternalValue',element(3,'$3'),element(3,'$5')}}.

-NamedNumber -> identifier '(' identifier ')' : {'NamedNumber',element(3,'$1'),element(3,'$3')}.

-

-%NamedValue -> identifier Value : 

-%	{'NamedValue',element(2,'$1'),element(3,'$1'),'$2'}.

-

-

-SignedNumber -> number : element(3,'$1').

-SignedNumber -> '-' number : - element(3,'$1').

-

-% inlined IntegerValue -> SignedNumber :'$1'.

-% conflict moved to Value IntegerValue -> identifier:'$1'.

-

-EnumeratedType -> ENUMERATED '{' Enumeration '}' :{'ENUMERATED','$3'}.

-

-% inlined Enumerations -> Enumeration :{'$1','false',[]}.

-% inlined Enumerations -> Enumeration ',' '...' : {'$1','true',[]}.

-% inlined Enumerations -> Enumeration ',' '...' ',' Enumeration : {'$1','true','$5'}.

-

-Enumeration -> EnumerationItem :['$1'].

-% modified Enumeration -> EnumerationItem ',' Enumeration :'fix'.

-Enumeration -> EnumerationItem ',' Enumeration :['$1'|'$3'].

-

-EnumerationItem -> identifier:element(3,'$1').

-EnumerationItem -> NamedNumber :'$1'.

-EnumerationItem -> '...' :'EXTENSIONMARK'.

-

-% conflict moved to Value EnumeratedValue -> identifier:'$1'.

-

-% inlined RealType -> REAL:'REAL'.

-

-RealValue -> NumericRealValue :'$1'.

-RealValue -> SpecialRealValue:'$1'.

-

-% ?? NumericRealValue -> number:'$1'. % number MUST BE '0'

-NumericRealValue -> SAndSOfValue : '$1'. % Value of the associated sequence type

-

-SpecialRealValue -> 'PLUS-INFINITY' :'$1'.

-SpecialRealValue -> 'MINUS-INFINITY' :'$1'.

-

-BitStringType -> 'BIT' 'STRING' :{'BIT STRING',[]}.

-BitStringType -> 'BIT' 'STRING' '{' NamedNumberList '}' :{'BIT STRING','$4'}.

-% NamedBitList replaced by NamedNumberList to reduce the grammar

-% Must check later that all "numbers" are positive

-

-% inlined BitStringValue -> bstring:'$1'.

-% inlined BitStringValue -> hstring:'$1'.

-% redundant use SequenceValue BitStringValue -> '{' IdentifierList '}' :$2.

-% redundant use SequenceValue BitStringValue -> '{' '}' :'fix'.

-

-IdentifierList -> identifier :[element(3,'$1')].

-% modified IdentifierList -> IdentifierList ',' identifier :'$1'.

-IdentifierList -> identifier ',' IdentifierList :[element(3,'$1')|'$3'].

-

-% inlined OctetStringType -> 'OCTET' 'STRING' :'OCTET STRING'.

-

-% inlined OctetStringValue -> bstring:'$1'.

-% inlined OctetStringValue -> hstring:'$1'.

-

-% inlined NullType -> 'NULL':'NULL'.

-

-% inlined NullValue -> NULL:'NULL'.

-

-% result is {'SEQUENCE',Optionals,Extensionmark,Componenttypelist}.

-SequenceType -> SEQUENCE '{' ComponentTypeList '}' :{'SEQUENCE','$3'}.

-% SequenceType -> SEQUENCE '{' ComponentTypeLists '}' :{'SEQUENCE','$3'}.

-% SequenceType -> SEQUENCE '{' ExtensionAndException '}' :{'SEQUENCE','$3'}.

-SequenceType -> SEQUENCE '{' '}' :{'SEQUENCE',[]}.

-

-% result is {RootComponentList,ExtensionAndException,AdditionalComponentTypeList}.

-%ComponentTypeLists -> ComponentTypeList ',' ExtensionAndException :{'$1','$3',[]}.

-%ComponentTypeLists -> ComponentTypeList :{'$1','false',[]}.

-%ComponentTypeLists -> ComponentTypeList ',' ExtensionAndException 

-%	',' ComponentTypeList :{'$1','$3', '$5'}.

-%ComponentTypeLists -> ExtensionAndException ',' ComponentTypeList :{[],'$1','$3'}.

-

-ComponentTypeList -> ComponentType :['$1'].

-% modified below ComponentTypeList -> ComponentTypeList ',' ComponentType :'$1'.

-ComponentTypeList -> ComponentType ',' ComponentTypeList  :['$1'|'$3'].

-

-% -record('ComponentType',{pos,name,type,attrib}).

-ComponentType -> '...' ExceptionSpec :{'EXTENSIONMARK',element(2,'$1'),'$2'}.

-ComponentType -> NamedType :

-	{'NamedType',Pos,{Name,Type}} = '$1',

-	#'ComponentType'{pos=Pos,name=Name,typespec=Type,prop=mandatory}.

-ComponentType -> NamedType 'OPTIONAL' : 

-	{'NamedType',Pos,{Name,Type}} = '$1',

-	#'ComponentType'{pos=Pos,name=Name,typespec=Type,prop='OPTIONAL'}.

-ComponentType -> NamedType 'DEFAULT' Value:

-	{'NamedType',Pos,{Name,Type}} = '$1',

-	#'ComponentType'{pos=Pos,name=Name,typespec=Type,prop={'DEFAULT','$3'}}.

-ComponentType -> 'COMPONENTS' 'OF' Type :{'COMPONENTS OF','$3'}.

-

-% redundant ExtensionAndException -> '...' : extensionmark.

-% ExtensionAndException -> '...' ExceptionSpec : {extensionmark,'$2'}.

-

-% replaced SequenceValue -> '{' ComponentValueList '}':'$2'.

-% replaced SequenceValue -> '{'  '}':[].

-

-ValueList -> Value :['$1'].

-ValueList -> NamedNumber :['$1'].

-% modified ValueList -> ValueList ',' Value :'$1'.

-ValueList -> Value ',' ValueList :['$1'|'$3'].

-ValueList -> Value ',' '...' :['$1' |[]].

-ValueList -> Value ValueList : ['$1',space|'$2'].

-ValueList -> NamedNumber ValueList: ['$1',space|'$2'].

-

-%ComponentValueList -> identifier ObjIdComponent:[{'NamedValue','$1','$2'}].

-%ComponentValueList -> NamedValue :['$1'].

-%ComponentValueList -> NamedValue ',' ComponentValueList:['$1'|'$3'].

-%ComponentValueList -> identifier ObjIdComponent ',' ComponentValueList :[{'NamedValue', '$1','$2'}|'$4'].

-

-SequenceOfType -> SEQUENCE OF Type : {'SEQUENCE OF','$3'}.

-

-% replaced SequenceOfValue with SAndSOfValue

-

-SAndSOfValue -> '{' ValueList '}' :'$2'.

-%SAndSOfValue -> '{' ComponentValueList '}' :'$2'.

-SAndSOfValue -> '{'  '}' :[].

-

-% save for later SetType ->

-% result is {'SET',Optionals,Extensionmark,Componenttypelist}.

-SetType -> SET '{' ComponentTypeList '}' :{'SET','$3'}.

-% SetType -> SET '{' ExtensionAndException '}' :{'SET','$3'}.

-SetType -> SET '{' '}' :{'SET',[]}.

-

-% replaced SetValue with SAndSOfValue

-

-SetOfType -> SET OF Type : {'SET OF','$3'}.

-

-% replaced SetOfValue with SAndSOfValue

-

-ChoiceType -> 'CHOICE' '{' ComponentTypeList '}' :{'CHOICE','$3'}.

-%  AlternativeTypeList is replaced by ComponentTypeList

-ChoiceValue -> identifier ':' Value : {'ChoiceValue',element(3,'$1'),'$3'}.

-% save for later SelectionType ->

-

-TaggedType -> Tag Type : '$2'#type{tag=['$1'#tag{type={default,get(tagdefault)}}]}.

-TaggedType -> Tag IMPLICIT Type :'$3'#type{tag=['$1'#tag{type='IMPLICIT'}]}.

-TaggedType -> Tag EXPLICIT Type :'$3'#type{tag=['$1'#tag{type='EXPLICIT'}]}.

-

-Tag -> '[' Class ClassNumber ']': #tag{class='$2',number='$3'}.

-Tag -> '[' Class typereference '.' identifier ']': 

-	#tag{class='$2',number=#'Externalvaluereference'{pos=element(2,'$3'),module=element(3,'$3'),

-	value=element(3,'$5')}}.

-Tag -> '[' Class number ']': #tag{class='$2',number=element(3,'$3')}.

-Tag -> '[' Class identifier ']': #tag{class='$2',number=element(3,'$3')}.

-

-ClassNumber -> number :element(3,'$1').

-% inlined above ClassNumber -> typereference '.' identifier :{'Externalvaluereference',element(3,'$1'),element(3,'$3')}.

-ClassNumber -> identifier :element(3,'$1').

-

-Class -> 'UNIVERSAL' :element(1,'$1').

-Class -> 'APPLICATION' :element(1,'$1').

-Class -> 'PRIVATE' :element(1,'$1').

-Class -> '$empty' :'CONTEXT'.

-

-% conflict redundant TaggedValue -> Value:'$1'.

-

-% inlined EmbeddedPDVType -> 'EMBEDDED' 'PDV' :'EMBEDDED PDV'.

-

-% inlined EmbeddedPDVValue -> SequenceValue:'$1'.

-

-% inlined ExternalType -> 'EXTERNAL' :'EXTERNAL'.

-

-% inlined ExternalValue -> SequenceValue :'$1'.

-

-% inlined ObjectIdentifierType -> 'OBJECT' 'IDENTIFIER' :'OBJECT IDENTIFIER'.

-

-ObjectIdentifierValue -> '{' ObjIdComponentList '}' :'$2'.

-%  inlined ObjectIdentifierValue -> SequenceAndSequenceOfValue :'$1'.

-% ObjectIdentifierValue -> '{' identifier ObjIdComponentList '}' :{'ObjectIdentifierValue','$2','$3'}.

-% ObjectIdentifierValue -> '{' typereference '.' identifier ObjIdComponentList '}' :{'ObjectIdentifierValue',{'$2','$4'},'$5'}.

-

-ObjIdComponentList -> Value:'$1'.

-ObjIdComponentList -> Value ObjIdComponentList :['$1'|'$2'].

-%ObjIdComponentList -> DefinedValue:'$1'.

-%ObjIdComponentList -> number:'$1'.

-%ObjIdComponentList -> DefinedValue ObjIdComponentList :['$1'|'$2'].

-%ObjIdComponentList -> number ObjIdComponentList :['$1'|'$2'].

-%ObjIdComponentList -> ObjIdComponent ObjIdComponentList :['$1'|'$2'].

-%ObjIdComponentList -> ObjIdComponent ObjIdComponentList :['$1'|'$2'].

-

-% redundant ObjIdComponent -> NameForm :'$1'. % expanded

-% replaced by 2 ObjIdComponent -> NumberForm :'$1'.

-% ObjIdComponent -> number :'$1'.

-% ObjIdComponent -> DefinedValue :'$1'. % means DefinedValue

-% ObjIdComponent -> NameAndNumberForm :'$1'.

-% ObjIdComponent -> NamedNumber :'$1'.

-% NamedBit replaced by NamedNumber to reduce grammar

-% must check later that "number" is positive

-

-% NameForm -> identifier:'$1'.

-

-% inlined NumberForm -> number :'$1'.

-% inlined NumberForm -> DefinedValue :'$1'.

-

-% replaced by NamedBit  NameAndNumberForm -> identifier '(' NumberForm ')'.

-% NameAndNumberForm -> NamedBit:'$1'.

-

-

-CharacterStringType -> restrictedcharacterstringtype :element(3,'$1').

-CharacterStringType -> 'CHARACTER' 'STRING' :'CHARACTER STRING'.

-

-RestrictedCharacterStringValue -> cstring :element(3, '$1').

-% modified below RestrictedCharacterStringValue -> CharacterStringList :'$1'.

-% conflict vs BuiltinValue RestrictedCharacterStringValue -> SequenceAndSequenceOfValue :'$1'.

-RestrictedCharacterStringValue -> Quadruple :'$1'.

-RestrictedCharacterStringValue -> Tuple :'$1'.

-

-% redundant CharacterStringList -> '{' ValueList '}' :'$2'. % modified

-

-% redundant CharSyms -> CharsDefn :'$1'.

-% redundant CharSyms -> CharSyms ',' CharsDefn :['$1'|'$3'].

-

-% redundant CharsDefn -> cstring :'$1'.

-% temporary replaced see below CharsDefn -> DefinedValue :'$1'.

-% redundant CharsDefn -> Value :'$1'.

-

-Quadruple -> '{' number ',' number ',' number ',' number '}' :{'Quadruple','$2','$4','$6','$8'}.

-% {Group,Plane,Row,Cell}

-

-Tuple -> '{' number ',' number '}' :{'Tuple', '$2','$4'}.

-% {TableColumn,TableRow}

-

-% inlined UnrestrictedCharacterString -> 'CHARACTER' 'STRING' :'CHARACTER STRING'.

-

-CharacterStringValue -> RestrictedCharacterStringValue :'$1'.

-% conflict vs BuiltinValue CharacterStringValue -> SequenceValue :'$1'. % UnrestrictedCharacterStringValue

-

-% inlined UsefulType -> typereference :'$1'.

-

-SelectionType -> identifier '<' Type : {'SelectionType',element(3,'$1'),'$3'}.

-

-ConstrainedType -> Type Constraint :

-	'$1'#type{constraint=merge_constraints(['$2'])}.

-ConstrainedType -> Type Constraint Constraint :

-	'$1'#type{constraint=merge_constraints(['$2','$3'])}.

-ConstrainedType -> Type Constraint Constraint Constraint:

-	'$1'#type{constraint=merge_constraints(['$2','$3','$4'])}.

-ConstrainedType -> Type Constraint Constraint Constraint Constraint:

-	'$1'#type{constraint=merge_constraints(['$2','$3','$4','$5'])}.

-%ConstrainedType -> Type Constraint :'$1'#type{constraint='$2'}.

-%ConstrainedType -> Type Constraint :'$1'#type{constraint='$2'}.

-ConstrainedType -> TypeWithConstraint :'$1'.

-

-TypeWithConstraint -> 'SET' Constraint 'OF' Type : 

-	#type{def = {'SET OF','$4'},constraint=merge_constraints(['$2'])}.		

-TypeWithConstraint -> 'SET' 'SIZE' Constraint 'OF' Type : 

-	#type{def = {'SET OF','$5'},constraint = merge_constraints([#constraint{c={'SizeConstraint','$3'#constraint.c}}])}.

-TypeWithConstraint -> 'SEQUENCE' Constraint 'OF' Type : 

-	#type{def = {'SEQUENCE OF','$4'},constraint = 

-	merge_constraints(['$2'])}.

-TypeWithConstraint -> 'SEQUENCE' 'SIZE' Constraint 'OF' Type : 

-	#type{def = {'SEQUENCE OF','$5'},constraint = merge_constraints([#constraint{c={'SizeConstraint','$3'#constraint.c}}])}.

-

-

-Constraint -> '(' ConstraintSpec ExceptionSpec ')' :

-		#constraint{c='$2',e='$3'}.

-

-% inlined Constraint -> SubTypeConstraint :'$1'.

-ConstraintSpec -> ElementSetSpecs :'$1'.

-ConstraintSpec -> UserDefinedConstraint :'$1'.

-ConstraintSpec -> TableConstraint :'$1'.

-

-TableConstraint -> ComponentRelationConstraint : '$1'.

-TableConstraint -> ObjectSet : '$1'.

-%TableConstraint -> '{' typereference '}' :tableconstraint.

-

-ComponentRelationConstraint -> '{' typereference '}' '{' '@' ComponentIdList '}' : componentrelation.

-ComponentRelationConstraint -> '{' typereference '}' '{' '@' '.' ComponentIdList '}' : componentrelation.

-

-ComponentIdList -> identifier: ['$1'].

-ComponentIdList -> identifier '.' ComponentIdList: ['$1'| '$3'].

-

-

-% later ConstraintSpec -> GeneralConstraint :'$1'.

-

-% from X.682

-UserDefinedConstraint -> 'CONSTRAINED' 'BY' '{' '}' : {constrained_by,[]}.

-UserDefinedConstraint -> 'CONSTRAINED' 'BY' 

-	'{' UserDefinedConstraintParameters '}' : {constrained_by,'$4'}.

-

-UserDefinedConstraintParameters -> UserDefinedConstraintParameter : ['$1'].

-UserDefinedConstraintParameters -> 

-	UserDefinedConstraintParameter ',' 

-	UserDefinedConstraintParameters: ['$1'|'$3'].

-

-UserDefinedConstraintParameter -> Type '.' ActualParameter : {'$1','$3'}.

-UserDefinedConstraintParameter -> ActualParameter : '$1'.

-

-

-

-ExceptionSpec -> '!' ExceptionIdentification : '$1'.

-ExceptionSpec -> '$empty' : undefined.

-

-ExceptionIdentification -> SignedNumber : '$1'.

-% inlined ExceptionIdentification -> DefinedValue : '$1'.

-ExceptionIdentification -> typereference '.' identifier : 

-	#'Externalvaluereference'{pos=element(2,'$1'),module=element(3,'$1'),

-	value=element(3,'$1')}.

-ExceptionIdentification -> identifier :'$1'.

-ExceptionIdentification -> Type ':' Value : {'$1','$3'}.

-

-% inlined SubTypeConstraint -> ElementSetSpec

-

-ElementSetSpecs -> ElementSetSpec : '$1'.

-ElementSetSpecs -> ElementSetSpec ',' '...': {'$1',[]}.

-ElementSetSpecs -> '...' ',' ElementSetSpec : {[],'$3'}.

-ElementSetSpecs -> ElementSetSpec ',' '...' ',' ElementSetSpec : {'$1','$5'}.

-

-ElementSetSpec -> Unions : '$1'.

-ElementSetSpec -> 'ALL' Exclusions : {'ALL','$2'}.

-

-Unions -> Intersections : '$1'.

-Unions -> UElems UnionMark IntersectionElements :

-	case {'$1','$3'} of	

-	{{'SingleValue',V1},{'SingleValue',V2}} -> 

-		{'SingleValue',ordsets:union(to_set(V1),to_set(V2))} 

-	end.

-

-UElems -> Unions :'$1'.

-

-Intersections -> IntersectionElements :'$1'.

-Intersections -> IElems IntersectionMark IntersectionElements :

-	case {'$1','$3'} of 

-	{{'SingleValue',V1},{'SingleValue',V2}} ->

-		{'SingleValue',ordsets:intersection(to_set(V1),to_set(V2))};

-	{V1,V2} when list(V1) ->

-	        V1 ++ [V2];

-	{V1,V2} ->

-	        [V1,V2]  

-	end.

-%Intersections -> IElems '^' IntersectionElements :{'INTERSECTION','$1','$3'}.

-%Intersections -> IElems 'INTERSECTION' IntersectionElements :{'INTERSECTION','$1','$3'}.

-

-IElems -> Intersections :'$1'.

-

-IntersectionElements -> Elements :'$1'.

-IntersectionElements -> Elems Exclusions :{'$1','$2'}.

-

-Elems -> Elements :'$1'.

-

-Exclusions -> 'EXCEPT' Elements :{'EXCEPT','$2'}.

-

-IntersectionMark -> 'INTERSECTION':'$1'.

-IntersectionMark -> '^':'$1'.

-UnionMark -> 'UNION':'$1'.

-UnionMark -> '|':'$1'.

-

-

-Elements -> SubTypeElements : '$1'.

-%Elements -> ObjectSetElements : '$1'.

-Elements -> '(' ElementSetSpec ')' : '$2'.

-Elements -> ReferencedType : '$1'.

-

-SubTypeElements -> ValueList : {'SingleValue','$1'}. % NOTE it must be a Value

-% The rule above modifyed only because of conflicts

-SubTypeElements -> 'INCLUDES' Type : {'ContainedSubType','$2'}.

-%not lalr1 if this is activated SubTypeElements -> Type : {'TypeConstraint','$1'}.

-SubTypeElements -> LowerEndpoint '..' UpperEndpoint : {'ValueRange',{'$1','$3'}}.

-SubTypeElements -> 'FROM' Constraint : {'PermittedAlphabet','$2'#constraint.c}.

-SubTypeElements -> 'SIZE' Constraint: {'SizeConstraint','$2'#constraint.c}.

-% later will introduce conflicts related to NULL SubTypeElements -> Type : {'TypeConstraint','$1'}.

-SubTypeElements -> 'WITH' 'COMPONENT' Constraint:{'WITH COMPONENT','$3'}.

-SubTypeElements -> 'WITH' 'COMPONENTS' '{' TypeConstraints '}':{'WITH COMPONENTS',{'FullSpecification','$4'}}.

-SubTypeElements -> 'WITH' 'COMPONENTS' '{' '...' ',' TypeConstraints '}' :{'WITH COMPONENTS',{'PartialSpecification','$3'}}.

-

-% inlined above InnerTypeConstraints ::= 

-% inlined above	SingleTypeConstraint::= Constraint

-% inlined above MultipleTypeConstraints ::= FullSpecification | PartialSpecification

-% inlined above FullSpecification   ::= "{" TypeConstraints "}"

-% inlined above PartialSpecification ::= "{"  "..."   ","   TypeConstraints "}"

-% TypeConstraints -> identifier : [{'NamedConstraint',element(3,'$1'),undefined,undefined}]. % is this really meaningful or allowed

-TypeConstraints -> NamedConstraint : ['$1'].

-TypeConstraints -> NamedConstraint ',' TypeConstraints : ['$1'|'$3'].

-TypeConstraints -> identifier : ['$1'].

-TypeConstraints -> identifier ',' TypeConstraints : ['$1'|'$3'].

-

-NamedConstraint -> identifier Constraint PresenceConstraint :{'NamedConstraint',element(3,'$1'),'$2','$3'}.

-NamedConstraint -> identifier Constraint  :{'NamedConstraint',element(3,'$1'),'$2',undefined}.

-NamedConstraint -> identifier PresenceConstraint :{'NamedConstraint',element(3,'$1'),undefined,'$2'}.

-

-PresenceConstraint -> 'PRESENT' : 'PRESENT'.

-PresenceConstraint -> 'ABSENT' : 'ABSENT'.

-PresenceConstraint -> 'OPTIONAL' : 'OPTIONAL'.

-

-

-

-LowerEndpoint -> LowerEndValue :'$1'.

-%LowerEndpoint -> LowerEndValue '<':{gt,'$1'}.

-LowerEndpoint -> LowerEndValue '<':('$1'+1).

-

-UpperEndpoint -> UpperEndValue :'$1'.

-%UpperEndpoint -> '<' UpperEndValue :{lt,'$2'}.

-UpperEndpoint -> '<' UpperEndValue :('$2'-1).

-

-LowerEndValue -> Value :'$1'.

-LowerEndValue -> 'MIN' :'MIN'.

-

-UpperEndValue -> Value :'$1'.

-UpperEndValue -> 'MAX' :'MAX'.

-

-

-% X.681 

-

-

-% X.681 chap 15

-

-%TypeFromObject -> ReferencedObjects '.' FieldName : {'$1','$3'}.

-TypeFromObject -> typereference '.' FieldName : {'$1','$3'}.

-

-ReferencedObjects -> typereference : '$1'.

-%ReferencedObjects -> ParameterizedObject

-%ReferencedObjects -> DefinedObjectSet

-%ReferencedObjects -> ParameterizedObjectSet

-

-FieldName -> typefieldreference : ['$1'].

-FieldName -> valuefieldreference : ['$1'].

-FieldName -> FieldName '.' FieldName : ['$1' | '$3'].

-

-PrimitiveFieldName -> typefieldreference : '$1'.

-PrimitiveFieldName -> valuefieldreference : '$1'.

-

-%ObjectSetAssignment -> typereference DefinedObjectClass '::=' ObjectSet: null.

-ObjectSetAssignment -> typereference typereference '::=' ObjectSet :

-	#typedef{pos=element(2,'$1'),name=element(3,'$1'),typespec={'ObjectSet',element(3,'$2'), '$4'}}.	

-ObjectSetAssignment -> typereference typereference '.' typereference '::=' ObjectSet.

-

-ObjectSet -> '{' ElementSetSpecs '}' : '$2'.

-ObjectSet -> '{' '...' '}' : ['EXTENSIONMARK'].

-

-%ObjectSetElements -> Object.

-% ObjectSetElements -> identifier : '$1'.

-%ObjectSetElements -> DefinedObjectSet.

-%ObjectSetElements -> ObjectSetFromObjects.

-%ObjectSetElements -> ParameterizedObjectSet.

-

-%ObjectAssignment -> identifier DefinedObjectClass '::=' Object.

-ObjectAssignment -> ValueAssignment.

-%ObjectAssignment -> identifier typereference '::=' Object.

-%ObjectAssignment -> identifier typereference '.' typereference '::=' Object.

-

-%Object -> DefinedObject: '$1'.

-%Object -> ExternalObjectReference: '$1'.%Object -> DefinedObject: '$1'.

-Object -> typereference '.' identifier: '$1'.%Object -> DefinedObject: '$1'.

-Object -> identifier: '$1'.%Object -> DefinedObject: '$1'.

-

-%Object -> ObjectDefn -> DefaultSyntax: '$1'.

-Object -> '{' FieldSetting ',' FieldSettings '}' : ['$2'|'$4'].

-Object -> '{' FieldSetting '}' :['$2'].

-

-%% For User-friendly notation

-%% Object -> ObjectDefn -> DefinedSyntax

-Object -> '{' '}'. 

-Object -> '{' DefinedSyntaxTokens '}'.

-

-% later Object -> ParameterizedObject: '$1'. look in x.683

-

-%DefinedObject -> ExternalObjectReference: '$1'.

-%DefinedObject -> identifier: '$1'.

-

-DefinedObjectClass -> typereference.

-%DefinedObjectClass -> objectclassreference.

-DefinedObjectClass -> ExternalObjectClassReference.

-%DefinedObjectClass -> typereference '.' objectclassreference.

-%%DefinedObjectClass -> UsefulObjectClassReference.

-

-ExternalObjectReference -> typereference '.' identifier.

-ExternalObjectClassReference -> typereference '.' typereference.

-%%ExternalObjectClassReference -> typereference '.' objectclassreference.

-

-ObjectDefn -> DefaultSyntax: '$1'.

-%ObjectDefn -> DefinedSyntax: '$1'.

-

-ObjectFromObject -> ReferencedObjects '.' FieldName : {'ObjectFromObject','$1','$3'}.

-

-% later look in x.683 ParameterizedObject ->

-

-%DefaultSyntax -> '{' '}'. 

-%DefaultSyntax -> '{' FieldSettings '}': '$2'.

-DefaultSyntax -> '{' FieldSetting ',' FieldSettings '}': '$2'.

-DefaultSyntax -> '{' FieldSetting '}': '$2'.

-

-FieldSetting -> PrimitiveFieldName Setting: {'$1','$2'}.

-

-FieldSettings -> FieldSetting ',' FieldSettings: ['$1'|'$3'].

-FieldSettings -> FieldSetting ',' FieldSettings: ['$1'|'$3'].

-FieldSettings -> FieldSetting: '$1'.

-

-%DefinedSyntax -> '{' '}'.

-DefinedSyntax -> '{' DefinedSyntaxTokens '}': '$2'.

-

-DefinedSyntaxTokens -> DefinedSyntaxToken: '$1'.

-DefinedSyntaxTokens -> DefinedSyntaxToken DefinedSyntaxTokens: ['$1'|'$2'].

-

-% expanded DefinedSyntaxToken -> Literal: '$1'.

-%DefinedSyntaxToken -> typereference: '$1'.

-DefinedSyntaxToken -> word: '$1'.

-DefinedSyntaxToken -> ',': '$1'.

-DefinedSyntaxToken -> Setting: '$1'.

-%DefinedSyntaxToken -> '$empty': nil .

-

-% Setting ::= Type|Value|ValueSet|Object|ObjectSet

-Setting -> Type: '$1'.

-%Setting -> Value: '$1'.

-%Setting -> ValueNotNull: '$1'.

-Setting -> BuiltinValue: '$1'.

-Setting -> ValueSet: '$1'.

-%Setting -> Object: '$1'.

-%Setting -> ExternalObjectReference.

-Setting -> typereference '.' identifier. 

-Setting -> identifier. 

-Setting -> ObjectDefn.

-

-Setting -> ObjectSet: '$1'.

-

-

-Erlang code.

-%%-author('[email protected]').

--copyright('Copyright (c) 1991-99 Ericsson Telecom AB').

--vsn('$Revision: /main/release/1 $').

--include("asn1_records.hrl").

-

-to_set(V) when list(V) ->

-	ordsets:list_to_set(V);

-to_set(V) ->

-	ordsets:list_to_set([V]).

-

-merge_constraints({Rlist,ExtList}) -> % extensionmarker in constraint

-	{merge_constraints(Rlist,[],[]),

-	 merge_constraints(ExtList,[],[])};

-	

-merge_constraints(Clist) ->

-	merge_constraints(Clist, [], []).

-

-merge_constraints([Ch|Ct],Cacc, Eacc) ->

-	NewEacc = case Ch#constraint.e of

-			undefined -> Eacc;

-			E -> [E|Eacc]

-		  end,

-	merge_constraints(Ct,[fixup_constraint(Ch#constraint.c)|Cacc],NewEacc);

-

-merge_constraints([],Cacc,[]) ->

-	lists:flatten(Cacc);

-merge_constraints([],Cacc,Eacc) ->

-	lists:flatten(Cacc) ++ [{'Errors',Eacc}].

-

-fixup_constraint(C) ->

-	case C of	

-		{'SingleValue',V} when list(V) ->

-			[C, 

-			{'ValueRange',{lists:min(V),lists:max(V)}}]; 

-		{'PermittedAlphabet',{'SingleValue',V}} when list(V) ->

-			V2 = {'SingleValue',

-			       ordsets:list_to_set(lists:flatten(V))},

-			{'PermittedAlphabet',V2};

-		{'PermittedAlphabet',{'SingleValue',V}} ->

-			V2 = {'SingleValue',[V]},

-			{'PermittedAlphabet',V2};

-		{'SizeConstraint',Sc} ->

-			{'SizeConstraint',fixup_size_constraint(Sc)};

-

-		List when list(List) ->

-			[fixup_constraint(Xc)||Xc <- List]; 	

-		Other ->

-			Other

-	end.

-

-fixup_size_constraint({'ValueRange',{Lb,Ub}}) ->

-	{Lb,Ub};

-fixup_size_constraint({{'ValueRange',R},[]}) ->

-	{R,[]};

-fixup_size_constraint({[],{'ValueRange',R}}) ->

-	{[],R};

-fixup_size_constraint({{'ValueRange',R1},{'ValueRange',R2}}) ->

-	{R1,R2};

-fixup_size_constraint({'SingleValue',[Sv]}) ->

-	fixup_size_constraint({'SingleValue',Sv});

-fixup_size_constraint({'SingleValue',L}) when list(L) ->

-	ordsets:list_to_set(L);

-fixup_size_constraint({'SingleValue',L}) ->

-	{L,L};

-fixup_size_constraint({C1,C2}) ->

-	{fixup_size_constraint(C1), fixup_size_constraint(C2)}.

-

-

-

-

-

-

-

-

-

-

-

-

-

diff --git a/lib/asn1/src/asn1ct_parser2.erl b/lib/asn1/src/asn1ct_parser2.erl
index 3891fce8d3..488e4af4e0 100644
--- a/lib/asn1/src/asn1ct_parser2.erl
+++ b/lib/asn1/src/asn1ct_parser2.erl
@@ -20,7 +20,7 @@
 %%
 -module(asn1ct_parser2).
 
--export([parse/1]).
+-export([parse/2,format_error/1]).
 -include("asn1_records.hrl").
 
 %% Only used internally within this module.
@@ -28,26 +28,34 @@
 -record(constraint, {c,e}).
 -record(identifier, {pos,val}).
 
-%% parse all types in module
-parse(Tokens) ->
-    case catch parse_ModuleDefinition(Tokens) of
-	{'EXIT',Reason} ->
-	    {error,{{undefined,get(asn1_module),
-		    [internal,error,'when',parsing,module,definition,Reason]},
-		    hd(Tokens)}};
-	{asn1_error,Reason} ->
-	    {error,{Reason,hd(Tokens)}};
-	{ModuleDefinition,Rest1} ->
-	    {Types,Rest2} = parse_AssignmentList(Rest1),
-	    clean_process_dictionary(),
-	    case Rest2 of
-		[{'END',_}|_Rest3] ->
-		    {ok,ModuleDefinition#module{typeorval = Types}};
-		_  ->
-		    {error,{{get_line(hd(Rest2)),get(asn1_module),
-			     [got,get_token(hd(Rest2)),expected,'END']},
-			    hd(Rest2)}}
-	    end
+parse(File0, Tokens0) ->
+    try do_parse(Tokens0) of
+	{ok,#module{}}=Result ->
+	    Result
+    catch
+	throw:{asn1_error,Fun} when is_function(Fun, 0) ->
+	    handle_parse_error(File0, Fun());
+	throw:{asn1_error,{parse_error,Tokens}} ->
+	    handle_parse_error(File0, Tokens)
+    after
+	clean_process_dictionary()
+    end.
+
+handle_parse_error(File0, [Token|_]) ->
+    File = filename:basename(File0),
+    Line = get_line(Token),
+    Error = {structured_error,{File,Line},?MODULE,
+	     {syntax_error,get_token(Token)}},
+    {error,[Error]}.
+
+do_parse(Tokens0) ->
+    {ModuleDefinition,Tokens1} = parse_ModuleDefinition(Tokens0),
+    {Types,Tokens2} = parse_AssignmentList(Tokens1),
+    case Tokens2 of
+	[{'END',_}|_Rest3] ->
+	    {ok,ModuleDefinition#module{typeorval=Types}};
+	_  ->
+	    parse_error(Tokens2)
     end.
 
 clean_process_dictionary() ->
@@ -57,6 +65,11 @@ clean_process_dictionary() ->
     _ = erase(extensiondefault),
     ok.
 
+format_error({syntax_error,Token}) when is_atom(Token) ->
+    io_lib:format("syntax error before: '~s'", [Token]);
+format_error({syntax_error,Token}) ->
+    io_lib:format("syntax error before: '~p'", [Token]).
+
 parse_ModuleDefinition([{typereference,L1,ModuleIdentifier}|Rest0]) ->
     put(asn1_module,ModuleIdentifier),
     {_DefinitiveIdentifier,Rest02} = 
@@ -70,9 +83,7 @@ parse_ModuleDefinition([{typereference,L1,ModuleIdentifier}|Rest0]) ->
 	       [{'DEFINITIONS',_}|Rest03] ->
 		   Rest03;
 	       _ ->
-		   throw({asn1_error,{get_line(hd(Rest02)),get(asn1_module),
-				      [got,get_token(hd(Rest02)),
-				       expected,'DEFINITIONS']}})
+		   parse_error(Rest02)
 	   end,
     {TagDefault,Rest2} = 
 	case Rest of
@@ -104,12 +115,11 @@ parse_ModuleDefinition([{typereference,L1,ModuleIdentifier}|Rest0]) ->
 		     extensiondefault = ExtensionDefault,
 		     exports = Exports,
 		     imports = {imports, Imports}}, Rest6};
-	_ -> throw({asn1_error,{get_line(hd(Rest3)),get(asn1_module),
-				[got,get_token(hd(Rest3)),expected,"::= BEGIN"]}})
+	_ ->
+	    parse_error(Rest3)
     end;
 parse_ModuleDefinition(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,typereference]}}).
+    parse_error(Tokens).
     
 parse_Exports([{'EXPORTS',_L1},{';',_L2}|Rest]) ->
     {{exports,[]},Rest};
@@ -122,8 +132,7 @@ parse_Exports([{'EXPORTS',_L1}|Rest]) ->
 	[{';',_}|Rest3] ->    
 	    {{exports,SymbolList},Rest3};
 	_ ->
-	    throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
-			       [got,get_token(hd(Rest2)),expected,';']}})
+	    parse_error(Rest2)
     end;
 parse_Exports(Rest) ->
     {{exports,all},Rest}.
@@ -137,29 +146,25 @@ parse_SymbolList(Tokens,Acc) ->
 	[{',',_L1}|Rest2] ->
 	    parse_SymbolList(Rest2,[Symbol|Acc]);
 	Rest2  ->
-	    {lists:reverse([Symbol|Acc]),Rest2}
+	    {lists:reverse(Acc, [Symbol]),Rest2}
     end.
 
 parse_Symbol(Tokens) ->
     parse_Reference(Tokens).
 
 parse_Reference([{typereference,L1,TrefName},{'{',_L2},{'}',_L3}|Rest]) ->
-%    {Tref,Rest};
     {tref2Exttref(L1,TrefName),Rest};
 parse_Reference([Tref1 = {typereference,_,_},{'.',_},Tref2 = {typereference,_,_},
 		 {'{',_L2},{'}',_L3}|Rest]) ->
-%    {{Tref1,Tref2},Rest};
     {{tref2Exttref(Tref1),tref2Exttref(Tref2)},Rest};
 parse_Reference([Tref = {typereference,_L1,_TrefName}|Rest]) ->
     {tref2Exttref(Tref),Rest};
-parse_Reference([Vref = {identifier,_L1,_VName},{'{',_L2},{'}',_L3}|Rest]) ->
+parse_Reference([#identifier{}=Vref,{'{',_L2},{'}',_L3}|Rest]) ->
     {identifier2Extvalueref(Vref),Rest};
-parse_Reference([Vref = {identifier,_L1,_VName}|Rest]) ->
+parse_Reference([#identifier{}=Vref|Rest]) ->
     {identifier2Extvalueref(Vref),Rest};
 parse_Reference(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,
-			[typereference,identifier]]}}).
+    parse_error(Tokens).
 
 parse_Imports([{'IMPORTS',_L1},{';',_L2}|Rest]) ->
     {{imports,[]},Rest};
@@ -168,9 +173,8 @@ parse_Imports([{'IMPORTS',_L1}|Rest]) ->
     case Rest2 of
 	[{';',_L2}|Rest3] ->
 	    {{imports,SymbolsFromModuleList},Rest3};
-	Rest3 ->
-	    throw({asn1_error,{get_line(hd(Rest3)),get(asn1_module),
-			       [got,get_token(hd(Rest3)),expected,';']}})
+	_ ->
+	    parse_error(Rest2)
     end;
 parse_Imports(Tokens) ->
     {{imports,[]},Tokens}.
@@ -180,11 +184,12 @@ parse_SymbolsFromModuleList(Tokens) ->
 
 parse_SymbolsFromModuleList(Tokens,Acc) ->
     {SymbolsFromModule,Rest} = parse_SymbolsFromModule(Tokens),
-    case (catch parse_SymbolsFromModule(Rest)) of 
+    try parse_SymbolsFromModule(Rest) of
 	{Sl,_Rest2} when is_record(Sl,'SymbolsFromModule') ->
-	    parse_SymbolsFromModuleList(Rest,[SymbolsFromModule|Acc]);
-	_  ->
-	    {lists:reverse([SymbolsFromModule|Acc]),Rest}
+	    parse_SymbolsFromModuleList(Rest, [SymbolsFromModule|Acc])
+    catch
+	throw:{asn1_error,_} ->
+	    {lists:reverse(Acc, [SymbolsFromModule]),Rest}
     end.
     
 parse_SymbolsFromModule(Tokens) ->
@@ -198,169 +203,154 @@ parse_SymbolsFromModule(Tokens) ->
 	end,
     {SymbolList,Rest} = parse_SymbolList(Tokens),
     case Rest of
-	[{'FROM',_L1},Tref = {typereference,_,Name},Ref={identifier,_L2,_Id},C={',',_}|Rest2] ->
-	    NewSymbolList = lists:map(SetRefModuleName(Name),SymbolList),
+	[{'FROM',_L1},{typereference,_,Name}=Tref|
+	 [#identifier{},{',',_}|_]=Rest2] ->
+	    NewSymbolList = lists:map(SetRefModuleName(Name), SymbolList),
 	    {#'SymbolsFromModule'{symbols=NewSymbolList,
-				  module=tref2Exttref(Tref)},[Ref,C|Rest2]};
+				  module=tref2Exttref(Tref)},Rest2};
 
 	%% This a special case when there is only one Symbol imported
 	%% from the next module. No other way to distinguish Ref from
 	%% a part of the GlobalModuleReference of Name.
-	[{'FROM',_L1},Tref = {typereference,_,Name},Ref = {identifier,_L2,_Id},From = {'FROM',_}|Rest2] ->
-	    NewSymbolList = lists:map(SetRefModuleName(Name),SymbolList),
+	[{'FROM',_L1},{typereference,_,Name}=Tref|
+	 [#identifier{},{'FROM',_}|_]=Rest2] ->
+	    NewSymbolList = lists:map(SetRefModuleName(Name), SymbolList),
 	    {#'SymbolsFromModule'{symbols=NewSymbolList,
-				  module=tref2Exttref(Tref)},[Ref,From|Rest2]};
-	[{'FROM',_L1},Tref = {typereference,_,Name},{identifier,_L2,_Id}|Rest2] ->
-	    NewSymbolList = lists:map(SetRefModuleName(Name),SymbolList),
+				  module=tref2Exttref(Tref)},Rest2};
+	[{'FROM',_L1},{typereference,_,Name}=Tref,#identifier{}|Rest2] ->
+	    NewSymbolList = lists:map(SetRefModuleName(Name), SymbolList),
 	    {#'SymbolsFromModule'{symbols=NewSymbolList,
 				  module=tref2Exttref(Tref)},Rest2}; 
-	[{'FROM',_L1},Tref = {typereference,_,Name},Brace = {'{',_}|Rest2] ->
-	    {_ObjIdVal,Rest3} = parse_ObjectIdentifierValue([Brace|Rest2]), % value not used yet, fix me
-	    NewSymbolList = lists:map(SetRefModuleName(Name),SymbolList),
+	[{'FROM',_L1},{typereference,_,Name}=Tref|[{'{',_}|_]=Rest2] ->
+	    {_ObjIdVal,Rest3} = parse_ObjectIdentifierValue(Rest2), % value not used yet, fix me
+	    NewSymbolList = lists:map(SetRefModuleName(Name), SymbolList),
 	    {#'SymbolsFromModule'{symbols=NewSymbolList,
 				  module=tref2Exttref(Tref)},Rest3}; 
-	[{'FROM',_L1},Tref = {typereference,_,Name}|Rest2] ->
-	    NewSymbolList = lists:map(SetRefModuleName(Name),SymbolList),
+	[{'FROM',_L1},{typereference,_,Name}=Tref|Rest2] ->
+	    NewSymbolList = lists:map(SetRefModuleName(Name), SymbolList),
 	    {#'SymbolsFromModule'{symbols=NewSymbolList,
 				  module=tref2Exttref(Tref)},Rest2};
 	_ ->
-	    throw({asn1_error,{get_line(hd(Rest)),get(asn1_module),
-			       [got,get_token(hd(Rest)),expected,
-				['FROM typerefernece identifier ,',
-				 'FROM typereference identifier',
-				 'FROM typereference {',
-				 'FROM typereference']]}})
+	    parse_error(Rest)
     end.
 
 parse_ObjectIdentifierValue([{'{',_}|Rest]) ->
     parse_ObjectIdentifierValue(Rest,[]).
 
-parse_ObjectIdentifierValue([{number,_,Num}|Rest],Acc) ->
+parse_ObjectIdentifierValue([{number,_,Num}|Rest], Acc) ->
     parse_ObjectIdentifierValue(Rest,[Num|Acc]);
-parse_ObjectIdentifierValue([{identifier,_,Id},{'(',_}, {number,_,Num}, {')',_}|Rest],Acc) ->
+parse_ObjectIdentifierValue([#identifier{val=Id},{'(',_},{number,_,Num},{')',_}|Rest], Acc) ->
     parse_ObjectIdentifierValue(Rest,[{'NamedNumber',Id,Num}|Acc]);
-parse_ObjectIdentifierValue([{identifier,_,Id},{'(',_}, {identifier,_,Id2}, {')',_}|Rest],Acc) ->
+parse_ObjectIdentifierValue([#identifier{val=Id},{'(',_},#identifier{val=Id2},{')',_}|Rest], Acc) ->
     parse_ObjectIdentifierValue(Rest,[{'NamedNumber',Id,Id2}|Acc]);
-parse_ObjectIdentifierValue([{identifier,_,Id},{'(',_}, {typereference,_,Tref},{'.',_},{identifier,_,Id2}, {')',_}|Rest],Acc) ->
-    parse_ObjectIdentifierValue(Rest,[{'NamedNumber',Id,{'ExternalValue',Tref,Id2}}|Acc]);
-parse_ObjectIdentifierValue([Id = {identifier,_,_}|Rest],Acc) ->
-    parse_ObjectIdentifierValue(Rest,[identifier2Extvalueref(Id)|Acc]);
-parse_ObjectIdentifierValue([{'}',_}|Rest],Acc) ->
+parse_ObjectIdentifierValue([#identifier{val=Id},{'(',_},{typereference,_,Tref},{'.',_},#identifier{val=Id2}, {')',_}|Rest], Acc) ->
+    parse_ObjectIdentifierValue(Rest, [{'NamedNumber',Id,{'ExternalValue',Tref,Id2}}|Acc]);
+parse_ObjectIdentifierValue([#identifier{}=Id|Rest], Acc) ->
+    parse_ObjectIdentifierValue(Rest, [identifier2Extvalueref(Id)|Acc]);
+parse_ObjectIdentifierValue([{'}',_}|Rest], Acc) ->
     {lists:reverse(Acc),Rest};
-parse_ObjectIdentifierValue([H|_T],_Acc) ->
-    throw({asn1_error,{get_line(H),get(asn1_module),
-		       [got,get_token(H),expected,
-			['{ some of the following }',number,'identifier ( number )',
-			 'identifier ( identifier )',
-			 'identifier ( typereference.identifier)',identifier]]}}).
+parse_ObjectIdentifierValue(Tokens, _Acc) ->
+    parse_error(Tokens).
     
-parse_AssignmentList(Tokens = [{'END',_}|_Rest]) ->
-    {[],Tokens};
-parse_AssignmentList(Tokens = [{'$end',_}|_Rest]) ->
-    {[],Tokens};
 parse_AssignmentList(Tokens) ->
-    parse_AssignmentList(Tokens,[]).
+    parse_AssignmentList(Tokens, []).
 
-parse_AssignmentList(Tokens= [{'END',_}|_Rest],Acc) ->
+parse_AssignmentList([{'END',_}|_]=Tokens, Acc) ->
     {lists:reverse(Acc),Tokens};
-parse_AssignmentList(Tokens= [{'$end',_}|_Rest],Acc) ->
+parse_AssignmentList([{'$end',_}|_]=Tokens, Acc) ->
     {lists:reverse(Acc),Tokens};
-parse_AssignmentList(Tokens,Acc) ->
-    case (catch parse_Assignment(Tokens)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	{asn1_error,R} ->
-%	    [H|T] = Tokens,
-	    throw({error,{R,hd(Tokens)}});
-	{Assignment,Rest} ->
-	    parse_AssignmentList(Rest,[Assignment|Acc])
-    end.
-
-parse_Assignment(Tokens) ->
-    Flist = [fun parse_TypeAssignment/1,
-	     fun parse_ValueAssignment/1,
-	     fun parse_ObjectClassAssignment/1,
-	     fun parse_ObjectAssignment/1,
-	     fun parse_ObjectSetAssignment/1,
-	     fun parse_ParameterizedAssignment/1,
+parse_AssignmentList(Tokens0, Acc) ->
+    {Assignment,Tokens} = parse_Assignment(Tokens0),
+    parse_AssignmentList(Tokens, [Assignment|Acc]).
+
+parse_Assignment([{typereference,L1,Name},{'::=',_}|Tokens0]) ->
+    %% 1) Type ::= TypeDefinition
+    %% 2) CLASS-NAME ::= CLASS {...}
+    Flist = [{type,fun parse_Type/1},
+	     {class,fun parse_ObjectClass/1}],
+    case parse_or_tag(Tokens0, Flist) of
+	{{type,Type},Tokens} ->
+	    %% TypeAssignment
+	    {#typedef{pos=L1,name=Name,typespec=Type},Tokens};
+	{{class,Type},Tokens} ->
+	    %% ObjectClassAssignment
+	    {#classdef{pos=L1,name=Name,module=resolve_module(Type),
+		       typespec=Type},Tokens}
+    end;
+parse_Assignment([{typereference,_,_},{'{',_}|_]=Tokens) ->
+    %% 1) Type{...} ::= ...
+    %% 2) ValueSet{...} Type ::= ...
+    %%    ObjectSet{...} CLASS-NAME ::= CLASS {...}
+    %% 3) CLASS-NAME{...} ::= CLASS {...}
+    %% A parameterized value set and and a parameterized object set
+    %% cannot be distinguished from each other without type information.
+    Flist = [fun parse_ParameterizedTypeAssignment/1,
+	     fun parse_ParameterizedValueSetTypeAssignment/1,
+	     fun parse_ParameterizedObjectClassAssignment/1],
+    parse_or(Tokens, Flist);
+parse_Assignment([{typereference,_,_}|_]=Tokens) ->
+    %% 1) ObjectSet CLASS-NAME ::= ...
+    %% 2) ValueSet Type ::= ...
+    Flist = [fun parse_ObjectSetAssignment/1,
 	     fun parse_ValueSetTypeAssignment/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
-	{asn1_assignment_error,Reason} ->
-	    throw({asn1_error,Reason});
-	Result ->
-	    Result
-    end.
-
+    parse_or(Tokens, Flist);
+parse_Assignment([#identifier{},{'{',_}|_]=Tokens) ->
+    %% 1) value{...} Type ::= ...
+    %% 2) object{...} CLASS-NAME ::= ...
+    Flist = [fun parse_ParameterizedValueAssignment/1,
+	     fun parse_ParameterizedObjectAssignment/1],
+    parse_or(Tokens, Flist);
+parse_Assignment([#identifier{}|_]=Tokens) ->
+    %% 1) value Type ::= ...
+    %% 2) object CLASS-NAME ::= ...
+    Flist = [fun parse_ValueAssignment/1,
+	     fun parse_ObjectAssignment/1],
+    parse_or(Tokens, Flist);
+parse_Assignment(Tokens) ->
+    parse_error(Tokens).
 
 parse_or(Tokens,Flist) ->
 	parse_or(Tokens,Flist,[]).
 
-parse_or(_Tokens,[],ErrList) ->
-    case ErrList of
-	[] ->
-	    throw({asn1_error,{parse_or,ErrList}});
-	L when is_list(L) ->
-	    %% chose to throw 1) the error with the highest line no,
-	    %% 2) the last error which is not a asn1_assignment_error or
-	    %% 3) the last error.
-	    throw(prioritize_error(ErrList))
+parse_or(Tokens, [Fun|Funs], ErrList) when is_function(Fun, 1) ->
+    try Fun(Tokens) of
+	{_,Rest}=Result when is_list(Rest) ->
+	    Result
+    catch
+	throw:{asn1_error,Error} ->
+	    parse_or(Tokens, Funs, [Error|ErrList])
     end;
-parse_or(Tokens,[Fun|Frest],ErrList) ->
-    case (catch Fun(Tokens)) of
-	Exit = {'EXIT',_Reason} ->
-	    parse_or(Tokens,Frest,[Exit|ErrList]);
-	AsnErr = {asn1_error,_} ->
-	    parse_or(Tokens,Frest,[AsnErr|ErrList]);
-	AsnAssErr = {asn1_assignment_error,_} ->
-	    parse_or(Tokens,Frest,[AsnAssErr|ErrList]);
-	Result = {_,L} when is_list(L) ->
-	    Result;
-	Error  ->
-	    parse_or(Tokens,Frest,[Error|ErrList])
-    end.
-
-parse_or_tag(Tokens,Flist) ->
-	parse_or_tag(Tokens,Flist,[]).
-
-parse_or_tag(_Tokens,[],ErrList) ->
-    case ErrList of
-	[] ->
-	    throw({asn1_error,{parse_or_tag,ErrList}});
-	L when is_list(L) ->
-	    %% chose to throw 1) the error with the highest line no,
-	    %% 2) the last error which is not a asn1_assignment_error or
-	    %% 3) the last error.
-	    throw(prioritize_error(ErrList))
+parse_or(_Tokens, [], ErrList) ->
+    throw({asn1_error,fun() -> prioritize_error(ErrList) end}).
+
+parse_or_tag(Tokens, Flist) ->
+    parse_or_tag(Tokens, Flist, []).
+
+parse_or_tag(Tokens, [{Tag,Fun}|Funs], ErrList) when is_function(Fun, 1) ->
+    try Fun(Tokens) of
+	{Parsed,Rest} when is_list(Rest) ->
+	    {{Tag,Parsed},Rest}
+    catch
+	throw:{asn1_error,Error} ->
+	    parse_or_tag(Tokens, Funs, [Error|ErrList])
     end;
-parse_or_tag(Tokens,[{Tag,Fun}|Frest],ErrList) when is_function(Fun) ->
-    case (catch Fun(Tokens)) of
-	Exit = {'EXIT',_Reason} ->
-	    parse_or_tag(Tokens,Frest,[Exit|ErrList]);
-	AsnErr = {asn1_error,_} ->
-	    parse_or_tag(Tokens,Frest,[AsnErr|ErrList]);
-	AsnAssErr = {asn1_assignment_error,_} ->
-	    parse_or_tag(Tokens,Frest,[AsnAssErr|ErrList]);
-	{ParseRes,Rest} when is_list(Rest) ->
-	    {{Tag,ParseRes},Rest};
-	Error  ->
-	    parse_or_tag(Tokens,Frest,[Error|ErrList])
-    end.
+parse_or_tag(_Tokens, [], ErrList) ->
+    throw({asn1_error,fun() -> prioritize_error(ErrList) end}).
+
+prioritize_error(Errors0) ->
+    Errors1 = prioritize_error_1(Errors0),
+    Errors2 = [{length(L),L} || L <- Errors1],
+    Errors = lists:sort(Errors2),
+    [Res|_] = [L || {_,L} <- Errors],
+    Res.
+
+prioritize_error_1([F|T]) when is_function(F, 0) ->
+    [F()|prioritize_error_1(T)];
+prioritize_error_1([{parse_error,Tokens}|T]) ->
+    [Tokens|prioritize_error_1(T)];
+prioritize_error_1([]) ->
+    [].
 
-parse_TypeAssignment([{typereference,L1,Tref},{'::=',_}|Rest]) ->	
-    {Type,Rest2} = parse_Type(Rest),
-    {#typedef{pos=L1,name=Tref,typespec=Type},Rest2};
-parse_TypeAssignment([H1,H2|_Rest]) ->
-    throw({asn1_assignment_error,{get_line(H1),get(asn1_module),
-				  [got,[get_token(H1),get_token(H2)], expected,
-				   typereference,'::=']}});
-parse_TypeAssignment([H|_T]) ->
-    throw({asn1_assignment_error,{get_line(H),get(asn1_module),
-				  [got,get_token(H),expected,
-				   typereference]}}).
 
 %% parse_Type(Tokens) -> Ret
 %%
@@ -370,9 +360,8 @@ parse_TypeAssignment([H|_T]) ->
 %%
 parse_Type(Tokens) ->
     {Tag,Rest3} = case Tokens of
-		      [Lbr= {'[',_}|Rest] ->
-			  parse_Tag([Lbr|Rest]);
-		      Rest-> {[],Rest}
+		      [{'[',_}|_] -> parse_Tag(Tokens);
+		      _ -> {[],Tokens}
 		  end,
     {Tag2,Rest4} = case Rest3 of
 		       [{'IMPLICIT',_}|Rest31] when is_record(Tag,tag)->
@@ -384,31 +373,17 @@ parse_Type(Tokens) ->
 		       Rest31 ->
 			   {Tag,Rest31}
 		   end,
-    Flist = [fun parse_BuiltinType/1,fun parse_ReferencedType/1,fun parse_TypeWithConstraint/1],
-    {Type,Rest5} = case (catch parse_or(Rest4,Flist)) of
-		      {'EXIT',Reason} ->
-			  exit(Reason);
-			AsnErr = {asn1_error,_Reason} ->
-			 throw(AsnErr);
-		      Result ->
-			  Result
-		  end,
-    case hd(Rest5) of
-	{'(',_} ->
+    Flist = [fun parse_BuiltinType/1,
+	     fun parse_ReferencedType/1,
+	     fun parse_TypeWithConstraint/1],
+    {Type,Rest5} = parse_or(Rest4, Flist),
+    case Rest5 of
+	[{'(',_}|_] ->
 	    {Constraints,Rest6} = parse_Constraints(Rest5),
-	    if is_record(Type,type) ->
-		    {Type#type{constraint=merge_constraints(Constraints),
-			       tag=Tag2},Rest6};
-	       true ->
-		    {#type{def=Type,constraint=merge_constraints(Constraints),
-			   tag=Tag2},Rest6}
-	    end;
-	_ ->
-	    if is_record(Type,type) ->
-		    {Type#type{tag=Tag2},Rest5};
-	       true ->
-		    {#type{def=Type,tag=Tag2},Rest5}
-	    end
+	    {Type#type{tag=Tag2,
+		       constraint=merge_constraints(Constraints)},Rest6};
+	[_|_] ->
+	    {Type#type{tag=Tag2},Rest5}
     end.
 
 parse_BuiltinType([{'BIT',_},{'STRING',_}|Rest]) ->
@@ -419,11 +394,10 @@ parse_BuiltinType([{'BIT',_},{'STRING',_}|Rest]) ->
 		[{'}',_}|Rest4] ->
 		    {#type{def={'BIT STRING',NamedNumberList}},Rest4};
 		_ ->
-		    throw({asn1_error,{get_line(hd(Rest3)),get(asn1_module),
-				       [got,get_token(hd(Rest3)),expected,'}']}})
+		    parse_error(Rest3)
 	    end;
 	 _ ->
-	    {{'BIT STRING',[]},Rest}
+	    {#type{def={'BIT STRING',[]}},Rest}
     end;
 parse_BuiltinType([{'BOOLEAN',_}|Rest]) ->
     {#type{def='BOOLEAN'},Rest};
@@ -435,41 +409,33 @@ parse_BuiltinType([{'CHARACTER',_},{'STRING',_}|Rest]) ->
     {#type{def='CHARACTER STRING'},Rest};
 
 parse_BuiltinType([{'CHOICE',_},{'{',_}|Rest]) ->
-    {AlternativeTypeLists,Rest2} = parse_AlternativeTypeLists(Rest),
-    AlternativeTypeLists1 =
-	lists:filter(fun(#'ExtensionAdditionGroup'{}) -> false;
-			('ExtensionAdditionGroupEnd') -> false;
-			(_) -> true
-		     end,AlternativeTypeLists),
+    {L0,Rest2} = parse_AlternativeTypeLists(Rest),
     case Rest2 of
 	[{'}',_}|Rest3] ->
-	    AlternativeTypeLists2 =
-		case {[Ext||Ext = #'EXTENSIONMARK'{} <- AlternativeTypeLists1],
-		      get(extensiondefault)} of
-		    {[],'IMPLIED'} ->  AlternativeTypeLists1 ++ [#'EXTENSIONMARK'{}];
-		    _ -> AlternativeTypeLists1
+	    NeedExt = not lists:keymember('EXTENSIONMARK', 1, L0) andalso
+		get(extensiondefault) =:= 'IMPLIED',
+	    L = case NeedExt of
+		    true ->
+			L0 ++ [#'EXTENSIONMARK'{}];
+		    false ->
+			L0
 		end,
-
-	    {#type{def={'CHOICE',AlternativeTypeLists2}},Rest3};
+	    {#type{def={'CHOICE',L}},Rest3};
 	_  ->
-	    throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
-			       [got,get_token(hd(Rest2)),expected,'}']}})
+	    parse_error(Rest2)
     end;
 parse_BuiltinType([{'EMBEDDED',_},{'PDV',_}|Rest]) ->
     {#type{def='EMBEDDED PDV'},Rest};
 parse_BuiltinType([{'ENUMERATED',_},{'{',_}|Rest]) ->
-    {Enumerations,Rest2} = parse_Enumerations(Rest,get(extensiondefault)),
+    {Enumerations,Rest2} = parse_Enumerations(Rest),
     case Rest2 of
 	[{'}',_}|Rest3] ->
 	    {#type{def={'ENUMERATED',Enumerations}},Rest3};
 	_ ->
-	    throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
-			       [got,get_token(hd(Rest2)),expected,'}']}})
+	    parse_error(Rest2)
     end;
 parse_BuiltinType([{'EXTERNAL',_}|Rest]) ->
     {#type{def='EXTERNAL'},Rest};
-
-% InstanceOfType
 parse_BuiltinType([{'INSTANCE',_},{'OF',_}|Rest]) ->
     {DefinedObjectClass,Rest2} = parse_DefinedObjectClass(Rest),
     case Rest2 of
@@ -480,9 +446,6 @@ parse_BuiltinType([{'INSTANCE',_},{'OF',_}|Rest]) ->
 	_ ->
 	    {#type{def={'INSTANCE OF',DefinedObjectClass,[]}},Rest2}
     end;
-
-% parse_BuiltinType(Tokens) ->
-    
 parse_BuiltinType([{'INTEGER',_}|Rest]) ->
     case Rest of 
 	[{'{',_}|Rest2] ->
@@ -491,17 +454,13 @@ parse_BuiltinType([{'INTEGER',_}|Rest]) ->
 		[{'}',_}|Rest4] ->
 		    {#type{def={'INTEGER',NamedNumberList}},Rest4};
 		_ ->
-		    throw({asn1_error,{get_line(hd(Rest3)),get(asn1_module),
-				       [got,get_token(hd(Rest3)),expected,'}']}})
+		    parse_error(Rest3)
 	    end;
 	 _ ->
 	    {#type{def='INTEGER'},Rest}
     end;
 parse_BuiltinType([{'NULL',_}|Rest]) ->
     {#type{def='NULL'},Rest};
-
-% ObjectClassFieldType fix me later
-
 parse_BuiltinType([{'OBJECT',_},{'IDENTIFIER',_}|Rest]) ->
     {#type{def='OBJECT IDENTIFIER'},Rest};
 parse_BuiltinType([{'OCTET',_},{'STRING',_}|Rest]) ->
@@ -529,18 +488,14 @@ parse_BuiltinType([{'SEQUENCE',_},{'{',_},{'...',Line},{'!',_}|Rest]) ->
 		parse_ComponentTypeLists2(Rest2,[#'EXTENSIONMARK'{pos=Line}]),
 	    case Rest3 of
 		[{'}',_}|Rest4] ->
-	    {#type{def=#'SEQUENCE'{components=ComponentTypeLists}},Rest4};
+		    {#type{def=#'SEQUENCE'{components=ComponentTypeLists}},Rest4};
 		_  ->
-		    throw({asn1_error,{get_line(hd(Rest3)),get(asn1_module),
-			       [got,get_token(hd(Rest3)),expected,'}']}})
+		    parse_error(Rest3)
 	    end
-% 	_ -> % Seq case 4,17-19,23-26 will fail here
-% 	    throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
-% 			       [got,get_token(hd(Rest2)),expected,'}']}})
     end;
 parse_BuiltinType([{'SEQUENCE',_},{'{',_}|Rest]) ->
     {ComponentTypeLists,Rest2} = parse_ComponentTypeLists(Rest),
-    case Rest2  of
+    case Rest2 of
 	[{'}',_}|Rest3] ->
 	    ComponentTypeLists2 =
 		case {[Ext||Ext = #'EXTENSIONMARK'{} <- ComponentTypeLists],
@@ -551,25 +506,19 @@ parse_BuiltinType([{'SEQUENCE',_},{'{',_}|Rest]) ->
 	    {#type{def=#'SEQUENCE'{components = ComponentTypeLists2}},
 	     Rest3};
 	_ ->
-	    throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
-			       [got,get_token(hd(Rest2)),expected,'}']}})
+	    parse_error(Rest2)
     end;
-
-parse_BuiltinType([{'SEQUENCE',_},{'OF',_},Id={identifier,_,_},Lt={'<',_}|Rest]) ->
-%% TODO: take care of the identifier for something useful
-    {Type,Rest2} = parse_SelectionType([Id,Lt|Rest]),
-    {#type{def={'SEQUENCE OF',#type{def=Type,tag=[]}}},Rest2};
-
-parse_BuiltinType([{'SEQUENCE',_},{'OF',_},{identifier,_,_} |Rest]) ->
+parse_BuiltinType([{'SEQUENCE',_},{'OF',_}|
+		   [#identifier{},{'<',_}|_]=Tokens0]) ->
+    {Type,Tokens} = parse_SelectionType(Tokens0),
+    {#type{def={'SEQUENCE OF',Type}},Tokens};
+parse_BuiltinType([{'SEQUENCE',_},{'OF',_},#identifier{} |Rest]) ->
 %% TODO: take care of the identifier for something useful
     {Type,Rest2} = parse_Type(Rest),
     {#type{def={'SEQUENCE OF',Type}},Rest2};
-
 parse_BuiltinType([{'SEQUENCE',_},{'OF',_}|Rest]) ->
     {Type,Rest2} = parse_Type(Rest),
     {#type{def={'SEQUENCE OF',Type}},Rest2};
-
-
 parse_BuiltinType([{'SET',_},{'{',_},{'...',Line},{'}',_}|Rest]) ->
     {#type{def=#'SET'{components=[#'EXTENSIONMARK'{pos = Line}]}},Rest};
 parse_BuiltinType([{'SET',_},{'{',_},{'...',Line},{'!',_}|Rest]) ->
@@ -581,12 +530,18 @@ parse_BuiltinType([{'SET',_},{'{',_},{'...',Line},{'!',_}|Rest]) ->
 						val = ExceptionIdentification}]}},
 	     Rest3};
 	_ ->
-	    throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
-			       [got,get_token(hd(Rest2)),expected,'}']}})
+	    {ComponentTypeLists,Rest3}=
+		parse_ComponentTypeLists2(Rest2,[#'EXTENSIONMARK'{pos=Line}]),
+	    case Rest3 of
+		[{'}',_}|Rest4] ->
+		    {#type{def=#'SET'{components=ComponentTypeLists}},Rest4};
+		_  ->
+		    parse_error(Rest3)
+	    end
     end;
 parse_BuiltinType([{'SET',_},{'{',_}|Rest]) ->
     {ComponentTypeLists,Rest2} = parse_ComponentTypeLists(Rest),
-    case Rest2  of
+    case Rest2 of
 	[{'}',_}|Rest3] ->
 	    ComponentTypeLists2 =
 		case {[Ext||Ext = #'EXTENSIONMARK'{} <- ComponentTypeLists],
@@ -597,184 +552,128 @@ parse_BuiltinType([{'SET',_},{'{',_}|Rest]) ->
 	    {#type{def=#'SET'{components = ComponentTypeLists2}},
 	     Rest3};
 	_ ->
-	    throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
-			       [got,get_token(hd(Rest2)),expected,'}']}})
+	    parse_error(Rest2)
     end;
-
-parse_BuiltinType([{'SET',_},{'OF',_},Id={identifier,_,_},Lt={'<',_}|Rest]) ->
-%% TODO: take care of the identifier for something useful
-    {Type,Rest2} = parse_SelectionType([Id,Lt|Rest]),
-    {#type{def={'SET OF',#type{def=Type,tag=[]}}},Rest2};
-
-
-parse_BuiltinType([{'SET',_},{'OF',_},{identifier,_,_}|Rest]) ->
+parse_BuiltinType([{'SET',_},{'OF',_}|
+		   [#identifier{},{'<',_}|_]=Tokens0]) ->
+    {Type,Tokens} = parse_SelectionType(Tokens0),
+    {#type{def={'SET OF',Type}},Tokens};
+parse_BuiltinType([{'SET',_},{'OF',_},#identifier{}|Rest]) ->
 %%TODO: take care of the identifier for something useful
     {Type,Rest2} = parse_Type(Rest),
     {#type{def={'SET OF',Type}},Rest2};
-
 parse_BuiltinType([{'SET',_},{'OF',_}|Rest]) ->
     {Type,Rest2} = parse_Type(Rest),
     {#type{def={'SET OF',Type}},Rest2};
-
-%% The so called Useful types
 parse_BuiltinType([{'GeneralizedTime',_}|Rest]) ->
     {#type{def='GeneralizedTime'},Rest};
 parse_BuiltinType([{'UTCTime',_}|Rest]) ->
     {#type{def='UTCTime'},Rest};
 parse_BuiltinType([{'ObjectDescriptor',_}|Rest]) ->
     {#type{def='ObjectDescriptor'},Rest};
-
-%% For compatibility with old standard
-parse_BuiltinType([{'ANY',_},{'DEFINED',_},{'BY',_},{identifier,_,Id}|Rest]) ->
+parse_BuiltinType([{'ANY',_},{'DEFINED',_},{'BY',_},#identifier{val=Id}|Rest]) ->
+    %% For compatibility with the old standard.
     {#type{def={'ANY_DEFINED_BY',Id}},Rest};
 parse_BuiltinType([{'ANY',_}|Rest]) ->
+    %% For compatibility with the old standard.
     {#type{def='ANY'},Rest};
-
 parse_BuiltinType(Tokens) ->
     parse_ObjectClassFieldType(Tokens).
-%    throw({asn1_error,unhandled_type}).
 
 
-parse_TypeWithConstraint([{'SEQUENCE',_},Lpar = {'(',_}|Rest]) ->
-    {Constraint,Rest2} = parse_Constraint([Lpar|Rest]),
+parse_TypeWithConstraint([{'SEQUENCE',_}|[{'(',_}|_]=Rest0]) ->
+    {Constraint,Rest2} = parse_Constraint(Rest0),
     Rest4 = case Rest2 of
-		[{'OF',_}, {identifier,_,_Id}|Rest3] ->
+		[{'OF',_},#identifier{}|Rest3] ->
 %%% TODO: make some use of the identifier, maybe useful in the XML mapping
 		    Rest3;
 		[{'OF',_}|Rest3] ->
 		    Rest3;
 		_ ->
-		    throw({asn1_error,
-			   {get_line(hd(Rest2)),get(asn1_module),
-			    [got,get_token(hd(Rest2)),expected,'OF']}})
+		    parse_error(Rest2)
 	    end,
     {Type,Rest5} = parse_Type(Rest4),
     {#type{def = {'SEQUENCE OF',Type},
 	   constraint = merge_constraints([Constraint])},Rest5};
 
-parse_TypeWithConstraint([{'SEQUENCE',_},{'SIZE',_},Lpar = {'(',_}|Rest]) ->
-    {Constraint,Rest2} = parse_Constraint([Lpar|Rest]),
+parse_TypeWithConstraint([{'SEQUENCE',_},{'SIZE',_}|[{'(',_}|_]=Rest0]) ->
+    {Constraint,Rest2} = parse_Constraint(Rest0),
     #constraint{c=C} = Constraint,
-    Constraint2 = Constraint#constraint{c={'SizeConstraint',C}},
+    Constraint2 = Constraint#constraint{c={element_set,{'SizeConstraint',C},
+					   none}},
     Rest4 = case Rest2 of
-		[{'OF',_}, {identifier,_,_Id}|Rest3] ->
+		[{'OF',_},#identifier{}|Rest3] ->
 %%% TODO: make some use of the identifier, maybe useful in the XML mapping
 		    Rest3;
 		[{'OF',_}|Rest3] ->
 		    Rest3;
 		_ ->
-		    throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
-				       [got,get_token(hd(Rest2)),expected,'OF']}})
+		    parse_error(Rest2)
 	    end,
     {Type,Rest5} = parse_Type(Rest4),
     {#type{def = {'SEQUENCE OF',Type}, constraint = merge_constraints([Constraint2])},Rest5};
 
-parse_TypeWithConstraint([{'SET',_},Lpar = {'(',_}|Rest]) ->
-    {Constraint,Rest2} = parse_Constraint([Lpar|Rest]),
+parse_TypeWithConstraint([{'SET',_}|[{'(',_}|_]=Rest0]) ->
+    {Constraint,Rest2} = parse_Constraint(Rest0),
     Rest4 = case Rest2 of
-		[{'OF',_}, {identifier,_,_Id}|Rest3] ->
+		[{'OF',_},#identifier{}|Rest3] ->
 %%% TODO: make some use of the identifier, maybe useful in the XML mapping
 		    Rest3;
 		[{'OF',_}|Rest3] ->
 		    Rest3;
 		_ ->
-		    throw({asn1_error,
-			   {get_line(hd(Rest2)),get(asn1_module),
-			    [got,get_token(hd(Rest2)),expected,'OF']}})
+		    parse_error(Rest2)
 	    end,
     {Type,Rest5} = parse_Type(Rest4),
     {#type{def = {'SET OF',Type},
 	   constraint = merge_constraints([Constraint])},Rest5};
 
-parse_TypeWithConstraint([{'SET',_},{'SIZE',_},Lpar = {'(',_}|Rest]) ->
-    {Constraint,Rest2} = parse_Constraint([Lpar|Rest]),
+parse_TypeWithConstraint([{'SET',_},{'SIZE',_}|[{'(',_}|_]=Rest0]) ->
+    {Constraint,Rest2} = parse_Constraint(Rest0),
     #constraint{c=C} = Constraint,
-    Constraint2 = Constraint#constraint{c={'SizeConstraint',C}},
+    Constraint2 = Constraint#constraint{c={element_set,
+					   {'SizeConstraint',C},none}},
     Rest4 = case Rest2 of
-		[{'OF',_}, {identifier,_,_Id}|Rest3] ->
+		[{'OF',_},#identifier{}|Rest3] ->
 %%% TODO: make some use of the identifier, maybe useful in the XML mapping
 		    Rest3;
 		[{'OF',_}|Rest3] ->
 		    Rest3;
 		_ ->
-		    throw({asn1_error,
-			   {get_line(hd(Rest2)),get(asn1_module),
-			    [got,get_token(hd(Rest2)),expected,'OF']}})
+		    parse_error(Rest2)
 	    end,
     {Type,Rest5} = parse_Type(Rest4),
     {#type{def = {'SET OF',Type},
 	   constraint = merge_constraints([Constraint2])},Rest5};
 
 parse_TypeWithConstraint(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,
-		       ['SEQUENCE','SEQUENCE SIZE','SET','SET SIZE'],
-		       followed,by,a,constraint]}}).
+    parse_error(Tokens).
 
 
 %% --------------------------
 
 parse_ReferencedType(Tokens) ->
-    Flist = [fun parse_DefinedType/1,
+    Flist = [fun parse_ParameterizedType/1,
+	     fun parse_DefinedType/1,
 	     fun parse_SelectionType/1,
-	     fun parse_TypeFromObject/1,
-	     fun parse_ValueSetFromObjects/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
-	Result ->
-	    Result
-    end.
+	     fun parse_TypeFromObject/1],
+    parse_or(Tokens, Flist).
     
-parse_DefinedType(Tokens=[{typereference,_,_},{'{',_}|_Rest]) ->
-    parse_ParameterizedType(Tokens);
-parse_DefinedType(Tokens=[{typereference,L1,TypeName},
-			  T2={typereference,_,_},T3={'{',_}|Rest]) ->
-    case (catch parse_ParameterizedType(Tokens)) of
-	{'EXIT',_Reason} ->
-	    Rest2 = [T2,T3|Rest],
-	    {#type{def = #'Externaltypereference'{pos=L1,
-						  module=resolve_module(TypeName),
-						  type=TypeName}},Rest2};
-	{asn1_error,_} ->
-	    Rest2 = [T2,T3|Rest],
-	    {#type{def = #'Externaltypereference'{pos=L1,
-						  module=resolve_module(TypeName),
-						  type=TypeName}},Rest2};
-	Result ->
-	    Result
-    end;
-parse_DefinedType(Tokens=[{typereference,_L1,_Module},{'.',_},
-			  {typereference,_,_TypeName},{'{',_}|_Rest]) ->
-    parse_ParameterizedType(Tokens);
-parse_DefinedType([{typereference,L1,Module},{'.',_},{typereference,_,TypeName}|Rest]) ->
-    {#type{def = #'Externaltypereference'{pos=L1,module=Module,type=TypeName}},Rest};
-parse_DefinedType([{typereference,L1,TypeName}|Rest]) ->
-    case is_pre_defined_class(TypeName) of
-	false  ->
-	    {#type{def = #'Externaltypereference'{pos=L1,module=resolve_module(TypeName),
-						  type=TypeName}},Rest};
-	_ ->
-	    throw({asn1_error,
-		   {L1,get(asn1_module),
-		    [got,TypeName,expected,
-		     [typereference,'typereference.typereference',
-		      'typereference typereference']]}})
-    end;
+parse_DefinedType([{typereference,L1,Module},
+		   {'.',_},
+		   {typereference,_,TypeName}|Tokens]) ->
+    {#type{def = #'Externaltypereference'{pos=L1,module=Module,
+					  type=TypeName}},Tokens};
+parse_DefinedType([{typereference,_,_}=Tr|Tokens]) ->
+    {#type{def=tref2Exttref(Tr)},Tokens};
 parse_DefinedType(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,
-			[typereference,'typereference.typereference',
-			 'typereference typereference']]}}).
+    parse_error(Tokens).
 
-parse_SelectionType([{identifier,_,Name},{'<',_}|Rest]) ->    
+parse_SelectionType([#identifier{val=Name},{'<',_}|Rest]) ->
     {Type,Rest2} = parse_Type(Rest),
-    {{'SelectionType',Name,Type},Rest2};
+    {#type{def={'SelectionType',Name,Type}},Rest2};
 parse_SelectionType(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,'identifier <']}}).
+    parse_error(Tokens).
     
 
 resolve_module(Type) ->
@@ -787,30 +686,13 @@ resolve_module(_Type, Current, undefined) ->
 resolve_module(Type, Current, Imports) ->
     case [Mod || #'SymbolsFromModule'{symbols = S, module = Mod} <- Imports,
                  #'Externaltypereference'{type = T} <- S, 
-                 Type == T] of
+                 Type =:= T] of
         [#'Externaltypereference'{type = Mod}|_] -> Mod; 
 	%% This allows the same symbol to be imported several times
 	%% which ought to be checked elsewhere and flagged as an error
         []  -> Current
     end.
 
-%% --------------------------
-
-
-%% This should probably be removed very soon 
-% parse_ConstrainedType(Tokens) ->
-%     case (catch parse_TypeWithConstraint(Tokens)) of
-% 	{'EXIT',Reason} ->
-% 	    {Type,Rest} = parse_Type(Tokens),
-% 	    {Constraint,Rest2} = parse_Constraint(Rest),
-% 	    {Type#type{constraint=Constraint},Rest2};
-% 	{asn1_error,Reason2} ->
-% 	    {Type,Rest} = parse_Type(Tokens),
-% 	    {Constraint,Rest2} = parse_Constraint(Rest),
-% 	    {Type#type{constraint=Constraint},Rest2};
-% 	Result ->
-% 	    Result
-%     end.
 
 parse_Constraints(Tokens) ->
     parse_Constraints(Tokens,[]).
@@ -819,9 +701,9 @@ parse_Constraints(Tokens,Acc) ->
     {Constraint,Rest} = parse_Constraint(Tokens),
     case Rest of
 	[{'(',_}|_Rest2] ->
-	    parse_Constraints(Rest,[Constraint|Acc]);
+	    parse_Constraints(Rest, [Constraint|Acc]);
 	_ ->
-	    {lists:reverse([Constraint|Acc]),Rest}
+	    {lists:reverse(Acc, [Constraint]),Rest}
     end.
 
 parse_Constraint([{'(',_}|Rest]) ->
@@ -830,46 +712,27 @@ parse_Constraint([{'(',_}|Rest]) ->
     case Rest3 of
 	[{')',_}|Rest4] ->
 	    {#constraint{c=Constraint,e=Exception},Rest4};
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,')']}})
-    end;
-parse_Constraint(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,'(']}}).
+	[_|_] ->
+	    parse_error(Rest3)
+    end.
 
 parse_ConstraintSpec(Tokens) ->
     Flist = [fun parse_GeneralConstraint/1,
 	     fun parse_SubtypeConstraint/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	{asn1_error,Reason2} ->
-	    throw({asn1_error,Reason2});
-	Result ->
-	    Result
-    end.
+    parse_or(Tokens, Flist).
 
 parse_ExceptionSpec([LPar={')',_}|Rest]) ->
     {undefined,[LPar|Rest]};
 parse_ExceptionSpec([{'!',_}|Rest]) ->
     parse_ExceptionIdentification(Rest);
 parse_ExceptionSpec(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,[')','!']]}}).
+    parse_error(Tokens).
 
 parse_ExceptionIdentification(Tokens) ->
     Flist = [fun parse_SignedNumber/1,
 	     fun parse_DefinedValue/1,
 	     fun parse_TypeColonValue/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	{asn1_error,Reason2} ->
-	    throw({asn1_error,Reason2});
-	Result ->
-	    Result
-    end.
+    parse_or(Tokens, Flist).
 
 parse_TypeColonValue(Tokens) ->
     {Type,Rest} = parse_Type(Tokens),
@@ -877,32 +740,28 @@ parse_TypeColonValue(Tokens) ->
 	[{':',_}|Rest2] ->
 	    {Value,Rest3} = parse_Value(Rest2),
 	    {{Type,Value},Rest3};
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,':']}})
+	[_|_] ->
+	    parse_error(Rest)
     end.
 
 parse_SubtypeConstraint(Tokens) ->
     parse_ElementSetSpecs(Tokens).
 
-parse_ElementSetSpecs([{'...',_}|Rest]) ->
-    {Elements,Rest2} = parse_ElementSetSpec(Rest),
-    {{[],Elements},Rest2};
 parse_ElementSetSpecs(Tokens) ->
     {RootElems,Rest} = parse_ElementSetSpec(Tokens),
     case Rest of
 	[{',',_},{'...',_},{',',_}|Rest2] ->
 	    {AdditionalElems,Rest3} = parse_ElementSetSpec(Rest2),
-	    {{RootElems,AdditionalElems},Rest3};
+	    {{element_set,RootElems,AdditionalElems},Rest3};
 	[{',',_},{'...',_}|Rest2] ->
-	    {{RootElems,[]},Rest2};
+	    {{element_set,RootElems,empty},Rest2};
 	_ ->
-	    {RootElems,Rest}
+	    {{element_set,RootElems,none},Rest}
     end.
 
 parse_ElementSetSpec([{'ALL',_},{'EXCEPT',_}|Rest]) ->
     {Exclusions,Rest2} = parse_Elements(Rest),
-    {{'ALL',{'EXCEPT',Exclusions}},Rest2};
+    {{'ALL-EXCEPT',Exclusions},Rest2};
 parse_ElementSetSpec(Tokens) ->
     parse_Unions(Tokens).
 
@@ -918,14 +777,8 @@ parse_Unions(Tokens) ->
     case {InterSec,Unions} of
 	{InterSec,[]} ->
 	    {InterSec,Rest2};
-	{{'SingleValue',V1},{'SingleValue',V2}} ->
-	    {{'SingleValue',ordsets:union(to_set(V1),to_set(V2))},Rest2};
-	{V1,V2} when is_list(V2) ->
-	    {[V1] ++ [union|V2],Rest2};
 	{V1,V2} ->
-	    {[V1,union,V2],Rest2}
-%	Other ->
-%	    throw(Other)
+	    {{union,V1,V2},Rest2}
     end.
 
 parse_UnionsRec([{'|',_}|Rest]) ->
@@ -934,12 +787,8 @@ parse_UnionsRec([{'|',_}|Rest]) ->
     case {InterSec,URec} of
 	{V1,[]} ->
 	    {V1,Rest3};
-	{{'SingleValue',V1},{'SingleValue',V2}} ->
-	    {{'SingleValue',ordsets:union(to_set(V1),to_set(V2))},Rest3};
-	{V1,V2} when is_list(V2) ->
-	    {[V1] ++ [union|V2],Rest3};
 	{V1,V2} ->
-	    {[V1,union,V2],Rest3}
+	    {{union,V1,V2},Rest3}
 	end;
 parse_UnionsRec([{'UNION',Info}|Rest]) ->
     parse_UnionsRec([{'|',Info}|Rest]);
@@ -952,13 +801,8 @@ parse_Intersections(Tokens) ->
     case {InterSec,IRec} of
 	{V1,[]} ->
 	    {V1,Rest2};
-	{{'SingleValue',V1},{'SingleValue',V2}} ->
-	    {{'SingleValue',
-	      ordsets:intersection(to_set(V1),to_set(V2))},Rest2};
-	{V1,V2} when is_list(V2) ->
-	    {[V1] ++ [intersection|V2],Rest2};
 	{V1,V2} ->
-	    {[V1,intersection,V2],Rest2}
+	    {{intersection,V1,V2},Rest2}
     end.
 
 %% parse_IElemsRec(Tokens) -> Result
@@ -967,15 +811,10 @@ parse_IElemsRec([{'^',_}|Rest]) ->
     {InterSec,Rest2} = parse_IntersectionElements(Rest),
     {IRec,Rest3} = parse_IElemsRec(Rest2),
     case {InterSec,IRec} of
-	{{'SingleValue',V1},{'SingleValue',V2}} ->
-	    {{'SingleValue',
-	      ordsets:intersection(to_set(V1),to_set(V2))},Rest3};
 	{V1,[]} ->
-	    {V1,Rest3};
-	{V1,V2} when is_list(V2) ->
-	    {[V1] ++ [intersection|V2],Rest3};
+	    {V1,Rest2};
 	{V1,V2} ->
-	    {[V1,intersection,V2],Rest3}
+	    {{intersection,V1,V2},Rest3}
     end;
 parse_IElemsRec([{'INTERSECTION',Info}|Rest]) ->
     parse_IElemsRec([{'^',Info}|Rest]);
@@ -992,7 +831,7 @@ parse_IntersectionElements(Tokens) ->
     case Rest of
 	[{'EXCEPT',_}|Rest2] ->
 	    {Exclusion,Rest3} = parse_Elements(Rest2),
-	    {{InterSec,{'EXCEPT',Exclusion}},Rest3};
+	    {{'EXCEPT',InterSec,Exclusion},Rest3};
 	Rest ->
 	    {InterSec,Rest}
     end.
@@ -1006,102 +845,73 @@ parse_Elements([{'(',_}|Rest]) ->
     case Rest2 of
 	[{')',_}|Rest3] ->
 	    {Elems,Rest3};
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,')']}})
+	[_|_] ->
+	    parse_error(Rest2)
     end;
 parse_Elements(Tokens) ->
     Flist = [fun parse_ObjectSetElements/1,
 	     fun parse_SubtypeElements/1,
-%	     fun parse_Value/1,
-%	     fun parse_Type/1,
 	     fun parse_Object/1,
 	     fun parse_DefinedObjectSet/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	Err = {asn1_error,_} ->
-	    throw(Err);
-	Result = {Val,_} when is_record(Val,type) ->
-	    Result;
-
-	Result ->
-	    Result
-    end.
-    
-
+    parse_or(Tokens, Flist).
     
 
 %% --------------------------
 
-parse_DefinedObjectClass([{typereference,_,_ModName},{'.',_},Tr={typereference,_,_ObjClName}|Rest]) ->
-%%    {{objectclassname,ModName,ObjClName},Rest};
-%    {{objectclassname,tref2Exttref(Tr)},Rest};
-    {tref2Exttref(Tr),Rest};
+parse_DefinedObjectClass([{typereference,_,ModName},{'.',_},
+			  {typereference,Pos,Name}|Tokens]) ->
+    Ext = #'Externaltypereference'{pos=Pos,
+				   module=ModName,
+				   type=Name},
+    {Ext,Tokens};
 parse_DefinedObjectClass([Tr={typereference,_,_ObjClName}|Rest]) ->
-%    {{objectclassname,tref2Exttref(Tr)},Rest};
     {tref2Exttref(Tr),Rest};
 parse_DefinedObjectClass(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,
-			['typereference . typereference',
-			 typereference,
-			 'TYPE-IDENTIFIER',
-			 'ABSTRACT-SYNTAX']]}}).
-
-parse_ObjectClassAssignment([{typereference,L1,ObjClName},{'::=',_}|Rest]) ->
-    {Type,Rest2} = parse_ObjectClass(Rest),
-    {#classdef{pos=L1,name=ObjClName,module=resolve_module(Type),
-	       typespec=Type},Rest2};
-parse_ObjectClassAssignment(Tokens) ->
-    throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
-				  [got,get_token(hd(Tokens)),expected,
-				   'typereference ::=']}}).
+    parse_error(Tokens).
 
 parse_ObjectClass(Tokens) ->
-    Flist = [fun parse_DefinedObjectClass/1,
-	     fun parse_ObjectClassDefn/1,
-	     fun parse_ParameterizedObjectClass/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	{asn1_error,Reason2} ->
-	    throw({asn1_error,Reason2});
-	Result ->
-	    Result
-    end.
+    Flist = [fun parse_ObjectClassDefn/1,
+	     fun parse_DefinedObjectClass/1],
+    parse_or(Tokens, Flist).
 
 parse_ObjectClassDefn([{'CLASS',_},{'{',_}|Rest]) ->
     {Type,Rest2} = parse_FieldSpec(Rest),
     {WithSyntaxSpec,Rest3} = parse_WithSyntaxSpec(Rest2),
     {#objectclass{fields=Type,syntax=WithSyntaxSpec},Rest3};
 parse_ObjectClassDefn(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,'CLASS {']}}).
+    parse_error(Tokens).
 
 parse_FieldSpec(Tokens) ->
     parse_FieldSpec(Tokens,[]).
 
-parse_FieldSpec(Tokens,Acc) ->
-    Flist = [fun parse_FixedTypeValueFieldSpec/1,
-	     fun parse_VariableTypeValueFieldSpec/1,
-	     fun parse_ObjectFieldSpec/1,
-	     fun parse_FixedTypeValueSetFieldSpec/1,
-	     fun parse_VariableTypeValueSetFieldSpec/1,
-	     fun parse_TypeFieldSpec/1,
-	     fun parse_ObjectSetFieldSpec/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
+parse_FieldSpec(Tokens0, Acc) ->
+    Fl = case Tokens0 of
+	     [{valuefieldreference,_,_}|_] ->
+		 %% 1) &field Type
+		 %%    &object CLASS-NAME
+		 %% 2) &field &FieldName
+		 %% A fixed type field cannot be distinguished from
+		 %% an object field without type information.
+		 [fun parse_FixedTypeValueFieldSpec/1,
+		  fun parse_VariableTypeValueFieldSpec/1];
+	     [{typefieldreference,_,_}|_] ->
+		 %% 1) &Set Type
+		 %%    &ObjectSet CLASS-NAME
+		 %% 2) &Set &FieldName
+		 %% 3) &Type
+		 %% A value set and an object cannot be distinguished
+		 %% without type information.
+		 [fun parse_FixedTypeValueSetFieldSpec/1,
+		  fun parse_VariableTypeValueSetFieldSpec/1,
+		  fun parse_TypeFieldSpec/1];
+	     [_|_] ->
+		 parse_error(Tokens0)
+	 end,
+    case parse_or(Tokens0, Fl) of
 	{Type,[{'}',_}|Rest]} ->
-	    {lists:reverse([Type|Acc]),Rest};
+	    {lists:reverse(Acc, [Type]),Rest};
 	{Type,[{',',_}|Rest2]} ->
-	    parse_FieldSpec(Rest2,[Type|Acc]);
-	{_,[H|_T]}  ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,'}']}})
+	    parse_FieldSpec(Rest2, [Type|Acc])
     end.
 
 parse_PrimitiveFieldName([{typefieldreference,_,FieldName}|Rest]) ->
@@ -1109,27 +919,19 @@ parse_PrimitiveFieldName([{typefieldreference,_,FieldName}|Rest]) ->
 parse_PrimitiveFieldName([{valuefieldreference,_,FieldName}|Rest]) ->
     {{valuefieldreference,FieldName},Rest};
 parse_PrimitiveFieldName(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,
-			[typefieldreference,valuefieldreference]]}}).
+    parse_error(Tokens).
 
 parse_FieldName(Tokens) ->
     {Field,Rest} = parse_PrimitiveFieldName(Tokens),
     parse_FieldName(Rest,[Field]).
 
-parse_FieldName([{'.',_}|Rest],Acc) ->
-    case (catch parse_PrimitiveFieldName(Rest)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
-	{FieldName,Rest2} ->
-	    parse_FieldName(Rest2,[FieldName|Acc])
-    end;
-parse_FieldName(Tokens,Acc) ->
+parse_FieldName([{'.',_}|Rest0],Acc) ->
+    {FieldName,Rest1} = parse_PrimitiveFieldName(Rest0),
+    parse_FieldName(Rest1, [FieldName|Acc]);
+parse_FieldName(Tokens, Acc) ->
     {lists:reverse(Acc),Tokens}.
     
-parse_FixedTypeValueFieldSpec([{valuefieldreference,L1,VFieldName}|Rest]) ->
+parse_FixedTypeValueFieldSpec([{valuefieldreference,_,VFieldName}|Rest]) ->
     {Type,Rest2} = parse_Type(Rest),
     {Unique,Rest3} = 
 	case Rest2 of
@@ -1139,109 +941,61 @@ parse_FixedTypeValueFieldSpec([{valuefieldreference,L1,VFieldName}|Rest]) ->
 		{undefined,Rest2}
 	end,
     {OptionalitySpec,Rest5} = parse_ValueOptionalitySpec(Rest3),
-    case {Unique,Rest5} of
-	{'UNIQUE',[{Del,_}|_]} when Del =:= ','; Del =:= '}' ->
-	    case OptionalitySpec of 
-		{'DEFAULT',_} ->
-		    throw({asn1_error,
-			   {L1,get(asn1_module),
-			    ['UNIQUE and DEFAULT in same field',VFieldName]}});
-		_ ->
-		    {{fixedtypevaluefield,VFieldName,Type,Unique,OptionalitySpec},Rest5}
-	    end;
-	{_,[{Del,_}|_]} when Del =:= ','; Del =:= '}'  ->
-	    {{object_or_fixedtypevalue_field,VFieldName,Type,Unique,OptionalitySpec},Rest5};
-	_ ->
-	    throw({asn1_error,{L1,get(asn1_module),
-			       [got,get_token(hd(Rest5)),expected,[',','}']]}})
-    end;
-parse_FixedTypeValueFieldSpec(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,valuefieldreference]}}).
+    case is_end_delimiter(Rest5) of
+	false -> parse_error(Rest5);
+	true -> ok
+    end,
+    Tag = case Unique of
+	      'UNIQUE' -> fixedtypevaluefield;
+	      _ -> object_or_fixedtypevalue_field
+	  end,
+    {{Tag,VFieldName,Type,Unique,OptionalitySpec},Rest5}.
+
+parse_VariableTypeValueFieldSpec([{valuefieldreference,_,VFieldName}|Rest0]) ->
+    {FieldRef,Rest1} = parse_FieldName(Rest0),
+    {OptionalitySpec,Rest} = parse_ValueOptionalitySpec(Rest1),
+    case is_end_delimiter(Rest) of
+	true ->
+	    {{variabletypevaluefield,VFieldName,FieldRef,OptionalitySpec},
+	     Rest};
+	false ->
+	    parse_error(Rest)
+    end.
 
-parse_VariableTypeValueFieldSpec([{valuefieldreference,L,VFieldName}|Rest]) ->
-    {FieldRef,Rest2} = parse_FieldName(Rest),
-    {OptionalitySpec,Rest3} = parse_ValueOptionalitySpec(Rest2),
-    case Rest3 of
-	[{Del,_}|_] when Del =:= ','; Del =:= '}' ->
-	    {{variabletypevaluefield,VFieldName,FieldRef,OptionalitySpec},Rest3};
-	_ ->
-	    throw({asn1_error,{L,get(asn1_module),
-			   [got,get_token(hd(Rest3)),expected,[',','}']]}})
-    end;
-parse_VariableTypeValueFieldSpec(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,valuefieldreference]}}).
+parse_TypeFieldSpec([{typefieldreference,_,Name}|Rest0]) ->
+    {OptionalitySpec,Rest} = parse_TypeOptionalitySpec(Rest0),
+    case is_end_delimiter(Rest) of
+	true ->
+	    {{typefield,Name,OptionalitySpec},Rest};
+	false ->
+	    parse_error(Rest)
+    end.
 
-parse_ObjectFieldSpec([{valuefieldreference,L,VFieldName}|Rest]) ->
-    {Class,Rest2} = parse_DefinedObjectClass(Rest),
-    {OptionalitySpec,Rest3} = parse_ObjectOptionalitySpec(Rest2),
-    case Rest3 of
-	[{Del,_}|_] when Del =:= ','; Del =:= '}' ->
-	    {{objectfield,VFieldName,Class,undefined,OptionalitySpec},Rest3};
-	_ ->
-	    throw({asn1_error,{L,get(asn1_module),
-			   [got,get_token(hd(Rest3)),expected,[',','}']]}})
-    end;
-parse_ObjectFieldSpec(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,valuefieldreference]}}).
+parse_FixedTypeValueSetFieldSpec([{typefieldreference,_,Name}|Rest0]) ->
+    {Type,Rest1} = parse_Type(Rest0),
+    {OptionalitySpec,Rest} = parse_ValueSetOptionalitySpec(Rest1),
+    case is_end_delimiter(Rest) of
+	true ->
+	    {{objectset_or_fixedtypevalueset_field,Name,Type,
+	      OptionalitySpec},Rest};
+	false ->
+	    parse_error(Rest)
+    end.
 
-parse_TypeFieldSpec([{typefieldreference,L,TFieldName}|Rest]) ->
-    {OptionalitySpec,Rest2} = parse_TypeOptionalitySpec(Rest),
-    case Rest2 of
-	[{Del,_}|_] when Del =:= ','; Del =:= '}' ->
-	    {{typefield,TFieldName,OptionalitySpec},Rest2};
-	_ ->
-	    throw({asn1_error,{L,get(asn1_module),
-			       [got,get_token(hd(Rest2)),expected,[',','}']]}})
-    end;
-parse_TypeFieldSpec(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,typefieldreference]}}).
+parse_VariableTypeValueSetFieldSpec([{typefieldreference,_,Name}|Rest0]) ->
+    {FieldRef,Rest1} = parse_FieldName(Rest0),
+    {OptionalitySpec,Rest} = parse_ValueSetOptionalitySpec(Rest1),
+    case is_end_delimiter(Rest) of
+	true ->
+	    {{variabletypevaluesetfield,Name,FieldRef,OptionalitySpec},
+	     Rest};
+	false ->
+	    parse_error(Rest)
+    end.
 
-parse_FixedTypeValueSetFieldSpec([{typefieldreference,L,TFieldName}|Rest]) ->
-    {Type,Rest2} = parse_Type(Rest),
-    {OptionalitySpec,Rest3} = parse_ValueSetOptionalitySpec(Rest2),
-    case Rest3 of
-	[{Del,_}|_] when Del =:= ','; Del =:= '}' ->
-	    {{objectset_or_fixedtypevalueset_field,TFieldName,Type,
-	      OptionalitySpec},Rest3};
-	_ ->
-	    throw({asn1_error,{L,get(asn1_module),
-			       [got,get_token(hd(Rest3)),expected,[',','}']]}})
-    end;  
-parse_FixedTypeValueSetFieldSpec(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,typefieldreference]}}).
-
-parse_VariableTypeValueSetFieldSpec([{typefieldreference,L,TFieldName}|Rest]) ->
-    {FieldRef,Rest2} = parse_FieldName(Rest),
-    {OptionalitySpec,Rest3} = parse_ValueSetOptionalitySpec(Rest2),
-    case Rest3 of
-	[{Del,_}|_] when Del =:= ','; Del =:= '}' ->
-	    {{variabletypevaluesetfield,TFieldName,FieldRef,OptionalitySpec},Rest3};
-	_ ->
-	    throw({asn1_error,{L,get(asn1_module),
-			       [got,get_token(hd(Rest3)),expected,[',','}']]}})
-    end; 
-parse_VariableTypeValueSetFieldSpec(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,typefieldreference]}}).
-
-parse_ObjectSetFieldSpec([{typefieldreference,L,TFieldName}|Rest]) ->
-    {Class,Rest2} = parse_DefinedObjectClass(Rest),
-    {OptionalitySpec,Rest3} = parse_ObjectSetOptionalitySpec(Rest2),
-    case Rest3 of
-	[{Del,_}|_] when Del =:= ','; Del =:= '}' ->
-	    {{objectsetfield,TFieldName,Class,OptionalitySpec},Rest3};
-	_ ->
-	    throw({asn1_error,{L,get(asn1_module),
-			       [got,get_token(hd(Rest3)),expected,[',','}']]}})
-    end;  
-parse_ObjectSetFieldSpec(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,typefieldreference]}}).
+is_end_delimiter([{',',_}|_]) -> true;
+is_end_delimiter([{'}',_}|_]) -> true;
+is_end_delimiter([_|_]) -> false.
 
 parse_ValueOptionalitySpec(Tokens)->
     case Tokens of
@@ -1252,15 +1006,6 @@ parse_ValueOptionalitySpec(Tokens)->
 	_  -> {'MANDATORY',Tokens}
     end.
 
-parse_ObjectOptionalitySpec(Tokens) ->
-    case Tokens of
-	[{'OPTIONAL',_}|Rest] -> {'OPTIONAL',Rest};
-	[{'DEFAULT',_}|Rest] ->
-	    {Object,Rest2} = parse_Object(Rest),
-	    {{'DEFAULT',Object},Rest2};
-	_  -> {'MANDATORY',Tokens}
-    end.
-
 parse_TypeOptionalitySpec(Tokens) ->
     case Tokens of
 	[{'OPTIONAL',_}|Rest] -> {'OPTIONAL',Rest};
@@ -1279,65 +1024,44 @@ parse_ValueSetOptionalitySpec(Tokens) ->
 	_  -> {'MANDATORY',Tokens}
     end.
 
-parse_ObjectSetOptionalitySpec(Tokens) ->
-        case Tokens of
-	[{'OPTIONAL',_}|Rest] -> {'OPTIONAL',Rest};
-	[{'DEFAULT',_}|Rest] ->
-	    {ObjectSet,Rest2} = parse_ObjectSet(Rest),
-	    {{'DEFAULT',ObjectSet},Rest2};
-	_  -> {'MANDATORY',Tokens}
-    end.
-
 parse_WithSyntaxSpec([{'WITH',_},{'SYNTAX',_}|Rest]) ->
     {SyntaxList,Rest2} = parse_SyntaxList(Rest),
     {{'WITH SYNTAX',SyntaxList},Rest2};
 parse_WithSyntaxSpec(Tokens) ->
     {[],Tokens}.
 
-parse_SyntaxList([{'{',_},{'}',_}|Rest]) ->
-    {[],Rest};
 parse_SyntaxList([{'{',_}|Rest]) ->
     parse_SyntaxList(Rest,[]);
 parse_SyntaxList(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,['{}','{']]}}).
+    parse_error(Tokens).
 
-parse_SyntaxList(Tokens,Acc) ->
+parse_SyntaxList(Tokens, Acc) ->
     {SyntaxList,Rest} = parse_TokenOrGroupSpec(Tokens),
     case Rest of
 	[{'}',_}|Rest2] -> 
-	    {lists:reverse([SyntaxList|Acc]),Rest2};
+	    {lists:reverse(Acc, [SyntaxList]),Rest2};
 	_ ->
-	    parse_SyntaxList(Rest,[SyntaxList|Acc])
+	    parse_SyntaxList(Rest, [SyntaxList|Acc])
     end.
 
 parse_TokenOrGroupSpec(Tokens) ->
     Flist = [fun parse_RequiredToken/1,
 	     fun parse_OptionalGroup/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
-	Result ->
-	    Result
-    end.
+    parse_or(Tokens, Flist).
 
-parse_RequiredToken([{typereference,L1,WordName}|Rest]) ->
+parse_RequiredToken([{typereference,_,WordName}|Rest]=Tokens) ->
     case is_word(WordName) of
 	false ->
-	    throw({asn1_error,{L1,get(asn1_module),
-			       [got,WordName,expected,a,'Word']}});
+	    parse_error(Tokens);
 	true ->
 	    {WordName,Rest}
     end;
 parse_RequiredToken([{',',L1}|Rest]) ->
     {{',',L1},Rest};
-parse_RequiredToken([{WordName,L1}|Rest]) ->
+parse_RequiredToken([{WordName,_}|Rest]=Tokens) ->
     case is_word(WordName) of
 	false ->
-	    throw({asn1_error,{L1,get(asn1_module),
-			       [got,WordName,expected,a,'Word']}});
+	    parse_error(Tokens);
 	true ->
 	    {WordName,Rest}
     end;
@@ -1347,7 +1071,9 @@ parse_RequiredToken(Tokens) ->
 parse_OptionalGroup([{'[',_}|Rest]) ->
     {Spec,Rest2} = parse_TokenOrGroupSpec(Rest),
     {SpecList,Rest3} = parse_OptionalGroup(Rest2,[Spec]),
-    {SpecList,Rest3}.
+    {SpecList,Rest3};
+parse_OptionalGroup(Tokens) ->
+    parse_error(Tokens).
 
 parse_OptionalGroup([{']',_}|Rest],Acc) ->
     {lists:reverse(Acc),Rest};
@@ -1355,82 +1081,55 @@ parse_OptionalGroup(Tokens,Acc) ->
     {Spec,Rest} = parse_TokenOrGroupSpec(Tokens),
     parse_OptionalGroup(Rest,[Spec|Acc]).
 
-parse_DefinedObject([Id={identifier,_,_ObjName}|Rest]) ->
+parse_DefinedObject([#identifier{}=Id|Rest]) ->
     {{object,identifier2Extvalueref(Id)},Rest};
-parse_DefinedObject([{typereference,L1,ModName},{'.',_},{identifier,_,ObjName}|Rest]) ->
+parse_DefinedObject([{typereference,L1,ModName},{'.',_},#identifier{val=ObjName}|Rest]) ->
     {{object, #'Externaltypereference'{pos=L1,module=ModName,type=ObjName}},Rest};
 parse_DefinedObject(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,
-		       [identifier,'typereference.identifier']]}}).
+    parse_error(Tokens).
 
-parse_ObjectAssignment([{identifier,L1,ObjName}|Rest]) ->
+parse_ObjectAssignment([#identifier{pos=L1,val=ObjName}|Rest]) ->
     {Class,Rest2} = parse_DefinedObjectClass(Rest),
     case Rest2 of
 	[{'::=',_}|Rest3] ->
 	    {Object,Rest4} = parse_Object(Rest3),
 	    {#typedef{pos=L1,name=ObjName,
 		      typespec=#'Object'{classname=Class,def=Object}},Rest4};
-	[H|_T]  -> 
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,'::=']}});
-	Other ->
-	    throw({asn1_error,{L1,get(asn1_module),
-			       [got,Other,expected,'::=']}})
-    end;
-parse_ObjectAssignment(Tokens) ->
-    throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
-				  [got,get_token(hd(Tokens)),expected,identifier]}}).
-
+	_ ->
+	    parse_error(Rest2)
+    end.
 
 %% parse_Object(Tokens) -> Ret
 %% Tokens    = [Tok]
 %% Tok       = tuple()
 %% Ret       = {object,_} | {object, _, _}
 parse_Object(Tokens) ->
-    Flist=[fun parse_ObjectDefn/1,
-	   fun parse_ObjectFromObject/1,
-	   fun parse_ParameterizedObject/1,
-	   fun parse_DefinedObject/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
-	Result ->
-	    Result
-    end.
+    %% The ObjectFromObject production is not included here,
+    %% since it will have been catched by the ValueFromObject
+    %% before we reach this point.
+    Flist = [fun parse_ObjectDefn/1,
+	     fun parse_DefinedObject/1],
+    parse_or(Tokens, Flist).
 
 parse_ObjectDefn(Tokens) ->
     Flist=[fun parse_DefaultSyntax/1,
 	   fun parse_DefinedSyntax/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
-	Result ->
-	    Result
-    end.
+    parse_or(Tokens, Flist).
 
-parse_DefaultSyntax([{'{',_},{'}',_}|Rest]) ->
-    {{object,defaultsyntax,[]},Rest};
 parse_DefaultSyntax([{'{',_}|Rest]) ->
     parse_DefaultSyntax(Rest,[]);
 parse_DefaultSyntax(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,['{}','{']]}}).
+    parse_error(Tokens).
 
-parse_DefaultSyntax(Tokens,Acc) ->
+parse_DefaultSyntax(Tokens, Acc) ->
     {Setting,Rest} = parse_FieldSetting(Tokens),
     case Rest of
 	[{',',_}|Rest2] ->
 	    parse_DefaultSyntax(Rest2,[Setting|Acc]);
 	[{'}',_}|Rest3] ->
-	    {{object,defaultsyntax,lists:reverse([Setting|Acc])},Rest3};
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,[',','}']]}})
+	    {{object,defaultsyntax,lists:reverse(Acc, [Setting])},Rest3};
+	_ ->
+	    parse_error(Rest)
     end.
 
 parse_FieldSetting(Tokens) ->
@@ -1439,7 +1138,9 @@ parse_FieldSetting(Tokens) ->
     {{PrimFieldName,Setting},Rest2}.
 
 parse_DefinedSyntax([{'{',_}|Rest]) ->
-    parse_DefinedSyntax(Rest,[]).
+    parse_DefinedSyntax(Rest, []);
+parse_DefinedSyntax(Tokens) ->
+    parse_error(Tokens).
 
 parse_DefinedSyntax(Tokens,Acc) ->
     case Tokens of
@@ -1455,95 +1156,70 @@ parse_DefinedSyntax(Tokens,Acc) ->
 %% Literal ::= word | ','
 %% Setting ::= Type | Value | ValueSet | Object | ObjectSet
 %% word equals typereference, but no lower cases
-parse_DefinedSyntaxToken([{',',L1}|Rest]) ->
-    {{',',L1},Rest};
+parse_DefinedSyntaxToken([{',',_}=Comma|Rest]) ->
+    {Comma,Rest};
 %% ObjectClassFieldType or a defined type with a constraint.
 %% Should also be able to parse a parameterized type. It may be
 %% impossible to distinguish between a parameterized type and a Literal
 %% followed by an object set.
-parse_DefinedSyntaxToken(Tokens=[{typereference,L1,_Name},{T,_}|_Rest]) 
-  when T == '.'; T == '(' ->
-    case catch parse_Setting(Tokens) of
-	{asn1_error,_} ->
-	    throw({asn1_error,{L1,get(asn1_module),
-			       [got,hd(Tokens), expected,['Word',setting]]}});
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	Result ->
-	    Result
-    end;
-parse_DefinedSyntaxToken(Tokens=[TRef={typereference,L1,Name}|Rest]) ->
+parse_DefinedSyntaxToken([{typereference,_,_Name},{T,_}|_]=Tokens)
+  when T =:= '.'; T =:= '(' ->
+    parse_Setting(Tokens);
+parse_DefinedSyntaxToken([{typereference,L1,Name}=TRef|Rest]=Tokens) ->
     case is_word(Name) of
 	false ->
 	    case lookahead_definedsyntax(Rest) of
 		word_or_setting ->
 		    {{setting,L1,tref2Exttref(TRef)},Rest};
-		_ ->
+		setting ->
 		    parse_Setting(Tokens)
 	    end;
 	true ->
-	    %% {{word_or_setting,L1,Name},Rest}
 	    {{word_or_setting,L1,tref2Exttref(TRef)},Rest}
     end;
 parse_DefinedSyntaxToken(Tokens) ->
-    case catch parse_Setting(Tokens) of
-	{asn1_error,_} ->
-	    parse_Word(Tokens);
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	Result ->
+    try parse_Setting(Tokens) of
+	{_,_}=Result ->
 	    Result
+    catch
+	throw:{asn1_error,_} ->
+	    parse_Word(Tokens)
     end.
 
 lookahead_definedsyntax([{typereference,_,Name}|_Rest]) ->
-    case is_word(Name)  of
+    case is_word(Name) of
 	true -> word_or_setting;
-	_ -> setting
+	false -> setting
     end;
 lookahead_definedsyntax([{'}',_}|_Rest]) ->
     word_or_setting;
 lookahead_definedsyntax(_) ->
     setting.
 	    
-parse_Word([{Name,Pos}|Rest]) ->
+parse_Word([{Name,Pos}|Rest]=Tokens) ->
     case is_word(Name) of
 	false ->
-	    throw({asn1_error,{Pos,get(asn1_module),
-			       [got,Name, expected,a,'Word']}});
+	    parse_error(Tokens);
 	true ->
 	    {{word_or_setting,Pos,tref2Exttref(Pos,Name)},Rest}
-    end.
+    end;
+parse_Word(Tokens) ->
+    parse_error(Tokens).
 
 parse_Setting(Tokens) ->
     Flist = [{type_tag,fun parse_Type/1},
 	     {value_tag,fun parse_Value/1},
 	     {object_tag,fun parse_Object/1},
 	     {objectset_tag,fun parse_ObjectSet/1}],
-    case (catch parse_or_tag(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
-	Result = {{value_tag,_},_} ->
+    case parse_or_tag(Tokens, Flist) of
+	{{value_tag,_},_}=Result ->
+	    %% Keep the value_tag.
 	    Result;
 	{{Tag,Setting},Rest} when is_atom(Tag) ->
+	    %% Remove all other tags.
 	    {Setting,Rest}
     end.
 
-%% parse_Setting(Tokens) ->
-%%     Flist = [fun parse_Type/1,
-%% 	     fun parse_Value/1,
-%% 	     fun parse_Object/1,
-%% 	     fun parse_ObjectSet/1],
-%%     case (catch parse_or(Tokens,Flist)) of
-%% 	{'EXIT',Reason} ->
-%% 	    exit(Reason);
-%% 	AsnErr = {asn1_error,_} ->
-%% 	    throw(AsnErr);
-%% 	Result ->
-%% 	    Result
-%%     end.
-
 parse_DefinedObjectSet([{typereference,L1,ModuleName},{'.',_},
 			{typereference,L2,ObjSetName}|Rest]) ->
     {{objectset,L1,#'Externaltypereference'{pos=L2,module=ModuleName,
@@ -1552,9 +1228,7 @@ parse_DefinedObjectSet([{typereference,L1,ObjSetName}|Rest]) ->
     {{objectset,L1,#'Externaltypereference'{pos=L1,module=resolve_module(ObjSetName),
 					    type=ObjSetName}},Rest};
 parse_DefinedObjectSet(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,
-			[typereference,'typereference.typereference']]}}).
+    parse_error(Tokens).
 
 parse_ObjectSetAssignment([{typereference,L1,ObjSetName}|Rest]) ->
     {Class,Rest2} = parse_DefinedObjectClass(Rest),
@@ -1564,16 +1238,9 @@ parse_ObjectSetAssignment([{typereference,L1,ObjSetName}|Rest]) ->
 	    {#typedef{pos=L1,name=ObjSetName,
 		      typespec=#'ObjectSet'{class=Class,
 					    set=ObjectSet}},Rest4};
-	[H|_T]  -> 
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,'::=']}})
-%%%	Other ->
-%%%	    throw(Other)
-    end;
-parse_ObjectSetAssignment(Tokens) ->
-    throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
-				  [got,get_token(hd(Tokens)),expected,
-				   typereference]}}).
+	_ ->
+	    parse_error(Rest2)
+    end.
 
 %% parse_ObjectSet(Tokens) -> {Ret,Rest}
 %% Tokens    = [Tok]
@@ -1590,26 +1257,20 @@ parse_ObjectSet([{'{',_}|Rest]) ->
     case Rest2 of
 	[{'}',_}|Rest3] ->
 	    {ObjSetSpec,Rest3};
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,'}']}})
+	_ ->
+	    parse_error(Rest2)
     end;
 parse_ObjectSet(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,'{']}}).
+    parse_error(Tokens).
 
-parse_ObjectSetSpec([{'...',_}|Rest]) ->
-    case Rest of
-	[{',',_}|Rest2] ->
-	    {Elements,Rest3}=parse_ElementSetSpecs(Rest2),
-	    {{[],Elements},Rest3};
-	_ ->
-	    {['EXTENSIONMARK'],Rest}
-    end;
+parse_ObjectSetSpec([{'...',_},{',',_}|Tokens0]) ->
+    {Elements,Tokens} = parse_ElementSetSpec(Tokens0),
+    {{element_set,empty,Elements},Tokens};
+parse_ObjectSetSpec([{'...',_}|Tokens]) ->
+    {{element_set,empty,empty},Tokens};
 parse_ObjectSetSpec(Tokens) ->
     parse_ElementSetSpecs(Tokens).
 
-% moved fun parse_Object/1 and fun parse_DefinedObjectSet/1 to parse_Elements
 %% parse_ObjectSetElements(Tokens) -> {Result,Rest}
 %% Result ::= {'ObjectSetFromObjects',Objects,Name} | {pos,ObjectSet,Params}
 %% Objects ::= ReferencedObjects
@@ -1619,18 +1280,9 @@ parse_ObjectSetSpec(Tokens) ->
 %% ObjectSet ::= {objectset,integer(),#'Externaltypereference'{}}
 %% Params ::= list() (see parse_ActualParameterList/1)
 parse_ObjectSetElements(Tokens) ->
-    Flist = [%fun parse_Object/1,
-	     %fun parse_DefinedObjectSet/1,
-	     fun parse_ObjectSetFromObjects/1,
+    Flist = [fun parse_ObjectSetFromObjects/1,
 	     fun parse_ParameterizedObjectSet/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
-	Result ->
-	    Result
-    end.
+    parse_or(Tokens, Flist).
 
 parse_ObjectClassFieldType(Tokens) ->
     {Class,Rest} = parse_DefinedObjectClass(Tokens),
@@ -1641,25 +1293,10 @@ parse_ObjectClassFieldType(Tokens) ->
 	      classname=Class,
 	      class=Class,fieldname=FieldName},
 	    {#type{def=OCFT},Rest3};
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,'.']}})
-%%%	Other ->
-%%%	    throw(Other)
+	_ ->
+	    parse_error(Rest)
     end.
 
-%parse_ObjectClassFieldValue(Tokens) ->
-%    Flist = [fun parse_OpenTypeFieldVal/1,
-%	     fun parse_FixedTypeFieldVal/1],
-%    case (catch parse_or(Tokens,Flist)) of
-%	{'EXIT',Reason} ->
-%	    throw(Reason);
-%	AsnErr = {asn1_error,_} ->
-%	    throw(AsnErr);
-%	Result ->
-%	    Result
-%    end.
-
 parse_ObjectClassFieldValue(Tokens) ->
     parse_OpenTypeFieldVal(Tokens).
 
@@ -1669,28 +1306,10 @@ parse_OpenTypeFieldVal(Tokens) ->
 	[{':',_}|Rest2] ->
 	    {Value,Rest3} = parse_Value(Rest2),
 	    {{opentypefieldvalue,Type,Value},Rest3};
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,':']}})
+	_ ->
+	    parse_error(Rest)
     end.
 
-% parse_FixedTypeFieldVal(Tokens) ->
-%     parse_Value(Tokens).
-
-% parse_InformationFromObjects(Tokens) ->
-%     Flist = [fun parse_ValueFromObject/1,
-% 	     fun parse_ValueSetFromObjects/1,
-% 	     fun parse_TypeFromObject/1,
-% 	     fun parse_ObjectFromObject/1],
-%     case (catch parse_or(Tokens,Flist)) of
-% 	{'EXIT',Reason} ->
-% 	    throw(Reason);
-% 	AsnErr = {asn1_error,_} ->
-% 	    throw(AsnErr);
-% 	Result ->
-% 	    Result
-%     end.
-
 %% parse_ReferencedObjects(Tokens) -> {Result,Rest}
 %% Result    ::= DefObject | DefObjSet |
 %%               {po,DefObject,Params} | {pos,DefObjSet,Params} |
@@ -1702,18 +1321,11 @@ parse_OpenTypeFieldVal(Tokens) ->
 parse_ReferencedObjects(Tokens) ->
     Flist = [fun parse_DefinedObject/1,
 	     fun parse_DefinedObjectSet/1,
-	     fun parse_ParameterizedObject/1,
 	     fun parse_ParameterizedObjectSet/1],
-        case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
-	Result ->
-	    Result
-    end.
+    parse_or(Tokens, Flist).
 
 parse_ValueFromObject(Tokens) ->
+    %% This production also matches ObjectFromObject.
     {Objects,Rest} = parse_ReferencedObjects(Tokens),
     case Rest of
 	[{'.',_}|Rest2] ->
@@ -1722,35 +1334,10 @@ parse_ValueFromObject(Tokens) ->
 		{valuefieldreference,_} ->
 		    {{'ValueFromObject',Objects,Name},Rest3};
 		_ ->
-		    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-				       [got,typefieldreference,expected,
-					valuefieldreference]}})
+		    parse_error(Rest2)
 	    end;
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,'.']}})
-%%%	Other ->
-%%%	    throw({asn1_error,{got,Other,expected,'.'}})
-    end.
-
-parse_ValueSetFromObjects(Tokens) ->
-    {Objects,Rest} = parse_ReferencedObjects(Tokens),
-    case Rest of
-	[{'.',_}|Rest2] ->
-	    {Name,Rest3} = parse_FieldName(Rest2),
-	    case lists:last(Name) of
-		{typefieldreference,_FieldName} ->
-		    {{'ValueSetFromObjects',Objects,Name},Rest3};
-		_ ->
-		    throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
-				       [got,get_token(hd(Rest2)),expected,
-					typefieldreference]}})
-	    end;
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,'.']}})
-%%%	Other ->
-%%%	    throw({asn1_error,{got,Other,expected,'.'}})
+	_ ->
+	    parse_error(Rest)
     end.
 
 parse_TypeFromObject(Tokens) ->
@@ -1760,28 +1347,12 @@ parse_TypeFromObject(Tokens) ->
 	    {Name,Rest3} = parse_FieldName(Rest2),
 	    case lists:last(Name) of
 		{typefieldreference,_FieldName} ->
-		    {{'TypeFromObject',Objects,Name},Rest3};
+		    {#type{def={'TypeFromObject',Objects,Name}},Rest3};
 		_ ->
-		    throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
-				       [got,get_token(hd(Rest2)),expected,
-					typefieldreference]}})
+		    parse_error(Rest2)
 	    end;
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,'.']}})
-%%%	Other ->
-%%%	    throw({asn1_error,{got,Other,expected,'.'}})
-    end.
-
-parse_ObjectFromObject(Tokens) ->
-    {Objects,Rest} = parse_ReferencedObjects(Tokens),
-    case Rest of
-	[{'.',_}|Rest2] ->
-	    {Name,Rest3} = parse_FieldName(Rest2),
-	    {{'ObjectFromObject',Objects,Name},Rest3};
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,'.']}})
+	_ ->
+	    parse_error(Rest)
     end.
 
 %% parse_ObjectSetFromObjects(Tokens) -> {Result,Rest}
@@ -1799,23 +1370,12 @@ parse_ObjectSetFromObjects(Tokens) ->
 		{typefieldreference,_FieldName} ->
 		    {{'ObjectSetFromObjects',Objects,Name},Rest3};
 		_ ->
-		    throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
-				       [got,get_token(hd(Rest2)),expected,
-					typefieldreference]}})
+		    parse_error(Rest2)
 	    end;
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,'.']}})
+	_ ->
+	    parse_error(Rest)
     end.
 
-% parse_InstanceOfType([{'INSTANCE',_},{'OF',_}|Rest]) ->
-%     {Class,Rest2} = parse_DefinedObjectClass(Rest),
-%     {{'InstanceOfType',Class},Rest2}.
-
-% parse_InstanceOfValue(Tokens) ->
-%     parse_Value(Tokens).
-
-
 
 %% X.682 constraint specification
 
@@ -1823,14 +1383,7 @@ parse_GeneralConstraint(Tokens) ->
     Flist = [fun parse_UserDefinedConstraint/1,
 	     fun parse_TableConstraint/1,
 	     fun parse_ContentsConstraint/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
-	Result ->
-	    Result
-    end.
+    parse_or(Tokens, Flist).
 
 parse_UserDefinedConstraint([{'CONSTRAINED',_},{'BY',_},{'{',_},{'}',_}|Rest])->
     {{constrained_by,[]},Rest};
@@ -1841,32 +1394,23 @@ parse_UserDefinedConstraint([{'CONSTRAINED',_},
     case Rest2 of
 	[{'}',_}|Rest3] ->
 	    {{constrained_by,Param},Rest3};
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,'}']}})
+	_ ->
+	    parse_error(Rest2)
     end;
 parse_UserDefinedConstraint(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,
-			['CONSTRAINED BY {}','CONSTRAINED BY {']]}}).
+    parse_error(Tokens).
 
 parse_UserDefinedConstraintParameter(Tokens) ->
-    parse_UserDefinedConstraintParameter(Tokens,[]).
-parse_UserDefinedConstraintParameter(Tokens,Acc) ->
+    parse_UserDefinedConstraintParameter(Tokens, []).
+
+parse_UserDefinedConstraintParameter(Tokens0, Acc) ->
     Flist = [fun parse_GovernorAndActualParameter/1,
 	     fun parse_ActualParameter/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
-	{Result,Rest} ->
-	    case Rest of
-		[{',',_}|_Rest2] ->
-		    parse_UserDefinedConstraintParameter(Tokens,[Result|Acc]);
-		_  ->
-		    {lists:reverse([Result|Acc]),Rest}
-	    end
+    case parse_or(Tokens0, Flist) of
+	{Result,[{',',_}|Tokens]} ->
+	    parse_UserDefinedConstraintParameter(Tokens, [Result|Acc]);
+	{Result,Tokens} ->
+	    {lists:reverse(Acc, [Result]),Tokens}
     end.
 
 parse_GovernorAndActualParameter(Tokens) ->
@@ -1875,26 +1419,18 @@ parse_GovernorAndActualParameter(Tokens) ->
 	[{':',_}|Rest2] ->
 	    {Params,Rest3} = parse_ActualParameter(Rest2),
 	    {{'Governor_Params',Governor,Params},Rest3};
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,':']}})
+	_ ->
+	    parse_error(Rest)
     end.
 
 parse_TableConstraint(Tokens) ->
     Flist = [fun parse_ComponentRelationConstraint/1,
 	     fun parse_SimpleTableConstraint/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
-	Result ->
-	    Result
-    end.
+    parse_or(Tokens, Flist).
 
 parse_SimpleTableConstraint(Tokens) ->
     {ObjectSet,Rest} = parse_ObjectSet(Tokens),
-    {{simpletable,ObjectSet},Rest}.
+    {{element_set,{simpletable,ObjectSet},none},Rest}.
 
 parse_ComponentRelationConstraint([{'{',_}|Rest]) ->
     {ObjectSet,Rest2} = parse_DefinedObjectSet(Rest),
@@ -1903,21 +1439,18 @@ parse_ComponentRelationConstraint([{'{',_}|Rest]) ->
 	    {AtNot,Rest4} = parse_AtNotationList(Rest3,[]),
 	    case Rest4 of
 		[{'}',_}|Rest5] ->
-		    {{componentrelation,ObjectSet,AtNot},Rest5};
-		[H|_T]  ->
-		    throw({asn1_error,{get_line(H),get(asn1_module),
-				       [got,get_token(H),expected,'}']}})
+		    Ret = {element_set,
+			   {componentrelation,ObjectSet,AtNot},
+			   none},
+		    {Ret,Rest5};
+		_ ->
+		    parse_error(Rest4)
 	    end;
-	[H|_T]  ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,
-				'ComponentRelationConstraint',ended,with,'}']}})
-%%%	Other ->
-%%%	    throw(Other)
+	_  ->
+	    parse_error(Rest2)
     end;
 parse_ComponentRelationConstraint(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,'{']}}).
+    parse_error(Tokens).
 
 parse_AtNotationList(Tokens,Acc) ->
     {AtNot,Rest} = parse_AtNotation(Tokens),
@@ -1925,7 +1458,7 @@ parse_AtNotationList(Tokens,Acc) ->
 	[{',',_}|Rest2] ->
 	    parse_AtNotationList(Rest2,[AtNot|Acc]);
 	_  ->
-	    {lists:reverse([AtNot|Acc]),Rest}
+	    {lists:reverse(Acc, [AtNot]),Rest}
     end.
 
 parse_AtNotation([{'@',_},{'.',_}|Rest]) ->
@@ -1935,20 +1468,17 @@ parse_AtNotation([{'@',_}|Rest]) ->
     {CIdList,Rest2} = parse_ComponentIdList(Rest),
     {{outermost,CIdList},Rest2};
 parse_AtNotation(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,['@','@.']]}}).
+    parse_error(Tokens).
 
 parse_ComponentIdList(Tokens) ->
     parse_ComponentIdList(Tokens,[]).
 
-parse_ComponentIdList([Id = {identifier,_,_},{'.',_}|Rest],Acc) ->
+parse_ComponentIdList([#identifier{}=Id,{'.',_}|Rest], Acc) ->
     parse_ComponentIdList(Rest,[identifier2Extvalueref(Id)|Acc]);
-parse_ComponentIdList([Id = {identifier,_,_}|Rest],Acc) ->
-    {lists:reverse([identifier2Extvalueref(Id)|Acc]),Rest};
+parse_ComponentIdList([#identifier{}=Id|Rest], Acc) ->
+    {lists:reverse(Acc, [identifier2Extvalueref(Id)]),Rest};
 parse_ComponentIdList(Tokens,_) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,
-			[identifier,'identifier.']]}}).
+    parse_error(Tokens).
 
 parse_ContentsConstraint([{'CONTAINING',_}|Rest]) ->
     {Type,Rest2} = parse_Type(Rest),
@@ -1963,24 +1493,14 @@ parse_ContentsConstraint([{'ENCODED',_},{'BY',_}|Rest]) ->
     {Value,Rest2} = parse_Value(Rest),
     {{contentsconstraint,[],Value},Rest2};
 parse_ContentsConstraint(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,
-			'CONTAINING','or','ENCODED BY']}}).
-
+    parse_error(Tokens).
 
 % X.683 Parameterization of ASN.1 specifications
 
 parse_Governor(Tokens) ->
     Flist = [fun parse_Type/1,
 	     fun parse_DefinedObjectClass/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
-	Result ->
-	    Result
-    end.
+    parse_or(Tokens, Flist).
 
 parse_ActualParameter(Tokens) ->
     Flist = [fun parse_Type/1,
@@ -1989,32 +1509,7 @@ parse_ActualParameter(Tokens) ->
 	     fun parse_DefinedObjectClass/1,
 	     fun parse_Object/1,
 	     fun parse_ObjectSet/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
-	Result ->
-	    Result
-    end.
-
-parse_ParameterizedAssignment(Tokens) ->
-    Flist = [fun parse_ParameterizedTypeAssignment/1,
-	     fun parse_ParameterizedValueAssignment/1,
-	     fun parse_ParameterizedValueSetTypeAssignment/1,
-	     fun parse_ParameterizedObjectClassAssignment/1,
-	     fun parse_ParameterizedObjectAssignment/1,
-	     fun parse_ParameterizedObjectSetAssignment/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
-	AsnAssErr = {asn1_assignment_error,_} ->
-	    throw(AsnAssErr);
-	Result ->
-	    Result
-    end.
+    parse_or(Tokens, Flist).
 
 %% parse_ParameterizedTypeAssignment(Tokens) -> Result
 %% Result = {#ptypedef{},Rest} | throw()
@@ -2025,18 +1520,13 @@ parse_ParameterizedTypeAssignment([{typereference,L1,Name}|Rest]) ->
 	    {Type,Rest4} = parse_Type(Rest3),
 	    {#ptypedef{pos=L1,name=Name,args=ParameterList,typespec=Type},
 	     Rest4};
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,'::=']}})
-    end;
-parse_ParameterizedTypeAssignment(Tokens) ->
-    throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
-				  [got,get_token(hd(Tokens)),expected,
-				   typereference]}}).
+	_ ->
+	    parse_error(Rest2)
+    end.
 
 %% parse_ParameterizedValueAssignment(Tokens) -> Result
 %% Result = {#pvaluedef{},Rest} | throw()
-parse_ParameterizedValueAssignment([{identifier,L1,Name}|Rest]) ->
+parse_ParameterizedValueAssignment([#identifier{pos=L1,val=Name}|Rest]) ->
     {ParameterList,Rest2} = parse_ParameterList(Rest),
     {Type,Rest3} = parse_Type(Rest2),
     case Rest3 of
@@ -2044,13 +1534,9 @@ parse_ParameterizedValueAssignment([{identifier,L1,Name}|Rest]) ->
 	    {Value,Rest5} = parse_Value(Rest4),
 	    {#pvaluedef{pos=L1,name=Name,args=ParameterList,type=Type,
 			 value=Value},Rest5};
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,'::=']}})
-    end;
-parse_ParameterizedValueAssignment(Tokens) ->
-    throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
-				  [got,get_token(hd(Tokens)),expected,identifier]}}).
+	_ ->
+	    parse_error(Rest3)
+    end.
 
 %% parse_ParameterizedValueSetTypeAssignment(Tokens) -> Result
 %% Result = {#pvaluesetdef{},Rest} | throw()
@@ -2062,14 +1548,9 @@ parse_ParameterizedValueSetTypeAssignment([{typereference,L1,Name}|Rest]) ->
 	    {ValueSet,Rest5} = parse_ValueSet(Rest4),
 	    {#pvaluesetdef{pos=L1,name=Name,args=ParameterList,
 			   type=Type,valueset=ValueSet},Rest5};
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,'::=']}})
-    end;
-parse_ParameterizedValueSetTypeAssignment(Tokens) ->
-    throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
-				  [got,get_token(hd(Tokens)),expected,
-				   typereference]}}).
+	_ ->
+	    parse_error(Rest3)
+    end.
 
 %% parse_ParameterizedObjectClassAssignment(Tokens) -> Result
 %% Result = {#ptypedef{},Rest} | throw()
@@ -2080,18 +1561,13 @@ parse_ParameterizedObjectClassAssignment([{typereference,L1,Name}|Rest]) ->
 	    {Class,Rest4} = parse_ObjectClass(Rest3),
 	    {#ptypedef{pos=L1,name=Name,args=ParameterList,typespec=Class},
 	     Rest4};
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,'::=']}})
-    end;
-parse_ParameterizedObjectClassAssignment(Tokens) ->
-    throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
-				  [got,get_token(hd(Tokens)),expected,
-				   typereference]}}).
+	_ ->
+	    parse_error(Rest2)
+    end.
 
 %% parse_ParameterizedObjectAssignment(Tokens) -> Result
 %% Result = {#pobjectdef{},Rest} | throw()
-parse_ParameterizedObjectAssignment([{identifier,L1,Name}|Rest]) ->
+parse_ParameterizedObjectAssignment([#identifier{pos=L1,val=Name}|Rest]) ->
     {ParameterList,Rest2} = parse_ParameterList(Rest),
     {Class,Rest3} = parse_DefinedObjectClass(Rest2),
     case Rest3 of
@@ -2099,36 +1575,9 @@ parse_ParameterizedObjectAssignment([{identifier,L1,Name}|Rest]) ->
 	    {Object,Rest5} = parse_Object(Rest4),
 	    {#pobjectdef{pos=L1,name=Name,args=ParameterList,
 			 class=Class,def=Object},Rest5};
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,'::=']}})
-%%%	Other ->
-%%%	    throw(Other)
-    end;
-parse_ParameterizedObjectAssignment(Tokens) ->
-    throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
-				  [got,get_token(hd(Tokens)),expected,identifier]}}).
-
-%% parse_ParameterizedObjectSetAssignment(Tokens) -> Result
-%% Result = {#pobjectsetdef{},Rest} | throw{}
-parse_ParameterizedObjectSetAssignment([{typereference,L1,Name}|Rest]) ->
-    {ParameterList,Rest2} = parse_ParameterList(Rest),
-    {Class,Rest3} = parse_DefinedObjectClass(Rest2),
-    case Rest3 of
-	[{'::=',_}|Rest4] ->
-	    {ObjectSet,Rest5} = parse_ObjectSet(Rest4),
-	    {#pobjectsetdef{pos=L1,name=Name,args=ParameterList,
-			    class=Class,def=ObjectSet},Rest5};
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,'::=']}})
-%%%	Other ->
-%%%	    throw(Other)
-    end;
-parse_ParameterizedObjectSetAssignment(Tokens) ->
-    throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
-				  [got,get_token(hd(Tokens)),expected,
-				   typereference]}}).
+	_ ->
+	    parse_error(Rest3)
+    end.
 
 %% parse_ParameterList(Tokens) -> Result
 %% Result = [Parameter]
@@ -2137,35 +1586,24 @@ parse_ParameterizedObjectSetAssignment(Tokens) ->
 %% Type = #type{}
 %% DefinedObjectClass = #'Externaltypereference'{}
 %% Reference = #'Externaltypereference'{} | #'Externalvaluereference'{}
-parse_ParameterList([{'{',_}|Rest]) ->
-    parse_ParameterList(Rest,[]);
-parse_ParameterList(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,'{']}}).
+parse_ParameterList([{'{',_}|Tokens]) ->
+    parse_ParameterList(Tokens, []).
 
 parse_ParameterList(Tokens,Acc) ->
     {Parameter,Rest} = parse_Parameter(Tokens),
     case Rest of
 	[{',',_}|Rest2] ->
-	    parse_ParameterList(Rest2,[Parameter|Acc]);
+	    parse_ParameterList(Rest2, [Parameter|Acc]);
 	[{'}',_}|Rest3] ->
-	    {lists:reverse([Parameter|Acc]),Rest3};
-	[H|_T]  ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,[',','}']]}})
+	    {lists:reverse(Acc, [Parameter]),Rest3};
+	_ ->
+	    parse_error(Rest)
     end.
 
 parse_Parameter(Tokens) ->
     Flist = [fun parse_ParamGovAndRef/1,
 	     fun parse_Reference/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
-	Result ->
-	    Result
-    end.
+    parse_or(Tokens, Flist).
 
 parse_ParamGovAndRef(Tokens) ->
     {ParamGov,Rest} = parse_ParamGovernor(Tokens),
@@ -2173,86 +1611,54 @@ parse_ParamGovAndRef(Tokens) ->
 	[{':',_}|Rest2] ->
 	    {Ref,Rest3} = parse_Reference(Rest2),
 	    {{ParamGov,Ref},Rest3};
-	[H|_T] ->
-	   throw({asn1_error,{get_line(H),get(asn1_module),
-			      [got,get_token(H),expected,':']}})
+	_ ->
+	    parse_error(Rest)
     end.
 
 parse_ParamGovernor(Tokens) ->
     Flist = [fun parse_Governor/1,
 	     fun parse_Reference/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
-	Result ->
-	    Result
-    end.
-
-% parse_ParameterizedReference(Tokens) ->
-%     {Ref,Rest} = parse_Reference(Tokens),
-%     case Rest of
-% 	[{'{',_},{'}',_}|Rest2] ->
-% 	    {{ptref,Ref},Rest2};
-% 	_  ->
-% 	    {{ptref,Ref},Rest}
-%     end.
+    parse_or(Tokens, Flist).
 
 parse_SimpleDefinedType([{typereference,L1,ModuleName},{'.',_},
 			 {typereference,_,TypeName}|Rest]) ->
     {#'Externaltypereference'{pos=L1,module=ModuleName,
 						 type=TypeName},Rest};
 parse_SimpleDefinedType([Tref={typereference,_,_}|Rest]) ->
-%    {#'Externaltypereference'{pos=L2,module=get(asn1_module),
-%						 type=TypeName},Rest};
     {tref2Exttref(Tref),Rest};
 parse_SimpleDefinedType(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,
-			[typereference,'typereference.typereference']]}}).
+    parse_error(Tokens).
 
 parse_SimpleDefinedValue([{typereference,L1,ModuleName},{'.',_},
-			  {identifier,_,Value}|Rest]) ->
+			  #identifier{val=Value}|Rest]) ->
     {{simpledefinedvalue,#'Externalvaluereference'{pos=L1,module=ModuleName,
 						   value=Value}},Rest};
-parse_SimpleDefinedValue([Id={identifier,_,_Value}|Rest]) ->
+parse_SimpleDefinedValue([#identifier{}=Id|Rest]) ->
     {{simpledefinedvalue,identifier2Extvalueref(Id)},Rest};
 parse_SimpleDefinedValue(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,
-			['typereference.identifier',identifier]]}}).
+    parse_error(Tokens).
 
 parse_ParameterizedType(Tokens) ->
+    %% May also be a parameterized class.
     {Type,Rest} = parse_SimpleDefinedType(Tokens),
     {Params,Rest2} = parse_ActualParameterList(Rest),
-    {{pt,Type,Params},Rest2}.
+    {#type{def={pt,Type,Params}},Rest2}.
 
 parse_ParameterizedValue(Tokens) ->
+    %% May also be a parameterized object.
     {Value,Rest} = parse_SimpleDefinedValue(Tokens),
     {Params,Rest2} = parse_ActualParameterList(Rest),
     {{pv,Value,Params},Rest2}.
 
-parse_ParameterizedObjectClass(Tokens) ->
-    {Type,Rest} = parse_DefinedObjectClass(Tokens),
-    {Params,Rest2} = parse_ActualParameterList(Rest),
-    {{poc,Type,Params},Rest2}.
-
 parse_ParameterizedObjectSet(Tokens) ->
     {ObjectSet,Rest} = parse_DefinedObjectSet(Tokens),
     {Params,Rest2} = parse_ActualParameterList(Rest),
     {{pos,ObjectSet,Params},Rest2}.
 
-parse_ParameterizedObject(Tokens) ->
-    {Object,Rest} = parse_DefinedObject(Tokens),
-    {Params,Rest2} = parse_ActualParameterList(Rest),
-    {{po,Object,Params},Rest2}.
-
 parse_ActualParameterList([{'{',_}|Rest]) ->
     parse_ActualParameterList(Rest,[]);
 parse_ActualParameterList(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,'{']}}).
+    parse_error(Tokens).
 
 parse_ActualParameterList(Tokens,Acc) ->
     {Parameter,Rest} = parse_ActualParameter(Tokens),
@@ -2260,43 +1666,22 @@ parse_ActualParameterList(Tokens,Acc) ->
 	[{',',_}|Rest2] ->
 	    parse_ActualParameterList(Rest2,[Parameter|Acc]);
 	[{'}',_}|Rest3] ->
-	    {lists:reverse([Parameter|Acc]),Rest3};
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,[',','}']]}})
-%%%	Other ->
-%%%	    throw(Other)
+	    {lists:reverse(Acc, [Parameter]),Rest3};
+	_ ->
+	    parse_error(Rest)
     end.
 
-
-
-
-
-
-
-%-------------------------
-
+%% Test whether Token is allowed in a syntax list.
 is_word(Token) ->
-    case not_allowed_word(Token) of
+    List = atom_to_list(Token),
+    case not_allowed_word(List) of
 	true -> false;
-	_ ->
-	    if
-		is_atom(Token) ->
-		    Item = atom_to_list(Token),
-		    is_word(Item);
-		is_list(Token), length(Token) == 1 ->
-		    check_one_char_word(Token);
-		is_list(Token) ->
-		    [A|Rest] = Token,
-		    case check_first(A) of
-			true ->
-			    check_rest(Rest);
-			_ -> 
-			    false
-		    end
-	    end
+	false -> is_word_1(List)
     end.
 
+is_word_1([H|T]) ->
+    check_first(H) andalso check_rest(T).
+
 not_allowed_word(Name) ->
     lists:member(Name,["BIT",
 		       "BOOLEAN",
@@ -2321,257 +1706,123 @@ not_allowed_word(Name) ->
 		       "TRUE",
 		       "UNION"]).
 
-check_one_char_word([A]) when $A =< A, $Z >= A ->
-    true;
-check_one_char_word([_]) ->
-    false. %% unknown item in SyntaxList
+check_first(C) ->
+    $A =< C andalso C =< $Z.
 
-check_first(A) when $A =< A, $Z >= A ->
-    true;
-check_first(_) ->
-    false. %% unknown item in SyntaxList
-
-check_rest([R,R|_Rs]) when $- == R ->
-    false; %% two consecutive hyphens are not allowed in a word
-check_rest([R]) when $- == R ->
-    false; %% word cannot end with hyphen
-check_rest([R|Rs]) when $A=<R, $Z>=R; $-==R ->
+check_rest([R|Rs]) when $A =< R, R =< $Z; R =:= $- ->
     check_rest(Rs);
 check_rest([]) ->
     true;
 check_rest(_) ->
     false.
 
+%%%
+%%% Parse alternative type lists for CHOICE.
+%%%
+
+parse_AlternativeTypeLists(Tokens0) ->
+    {Root,Tokens1} = parse_AlternativeTypeList(Tokens0),
+    case Tokens1 of
+	[{',',_}|Tokens2] ->
+	    {ExtMarker,Tokens3} = parse_ExtensionAndException(Tokens2),
+	    {ExtAlts,Tokens4} =	parse_ExtensionAdditionAlternatives(Tokens3),
+	    {_,Tokens} = parse_OptionalExtensionMarker(Tokens4, []),
+	    {Root++ExtMarker++ExtAlts,Tokens};
+	Tokens ->
+	    {Root,Tokens}
+    end.
+
+parse_ExtensionAndException([{'...',L}|Tokens0]) ->
+    {[#'EXTENSIONMARK'{pos=L}],
+     case Tokens0 of
+	 [{'!',_}|Tokens1] ->
+	     {_,Tokens} = parse_ExceptionIdentification(Tokens1),
+	     Tokens;
+	 _ ->
+	     Tokens0
+     end}.
+
+parse_AlternativeTypeList([#identifier{}|_]=Tokens0) ->
+    {AltType,Tokens} = parse_NamedType(Tokens0),
+    parse_AlternativeTypeList_1(Tokens, [AltType]);
+parse_AlternativeTypeList(Tokens) ->
+    parse_error(Tokens).
+
+parse_AlternativeTypeList_1([{',',_}|[#identifier{}|_]=Tokens0], Acc) ->
+    {AltType,Tokens} = parse_NamedType(Tokens0),
+    parse_AlternativeTypeList_1(Tokens, [AltType|Acc]);
+parse_AlternativeTypeList_1(Tokens, Acc) ->
+    {lists:reverse(Acc),Tokens}.
 
-to_set(V) when is_list(V) ->
-	ordsets:from_list(V);
-to_set(V) ->
-	ordsets:from_list([V]).
-
-parse_AlternativeTypeLists(Tokens) ->
-    parse_AlternativeTypeLists(Tokens,[]).
-
-parse_AlternativeTypeLists(Tokens = [{identifier,_,_}|_Rest0],Clist) ->
-    {CompList,Rest1} = parse_AlternativeTypeList(Tokens,[]),
-    parse_AlternativeTypeLists(Rest1,Clist++CompList);
-parse_AlternativeTypeLists([{'...',L1},{'!',_}|Rest02],Clist0) ->
-    {_,Rest03} = parse_ExceptionIdentification(Rest02),
-    %% Exception info is currently thrown away
-    parse_AlternativeTypeLists2(Rest03,Clist0++[#'EXTENSIONMARK'{pos=L1}]);
-parse_AlternativeTypeLists([{',',L1},{'...',_},{'!',_}|Rest02],Clist0) when Clist0 =/= []->
-    {_,Rest03} = parse_ExceptionIdentification(Rest02),
-    %% Exception info is currently thrown away
-    parse_AlternativeTypeLists2(Rest03,Clist0++[#'EXTENSIONMARK'{pos=L1}]);
-
-parse_AlternativeTypeLists([{',',_},{'...',L1}|Rest02],Clist0) when Clist0 =/= []->
-    parse_AlternativeTypeLists2(Rest02,Clist0++[#'EXTENSIONMARK'{pos=L1}]);
-parse_AlternativeTypeLists([{'...',L1}|Rest02],Clist0) ->
-    parse_AlternativeTypeLists2(Rest02,Clist0++[#'EXTENSIONMARK'{pos=L1}]);
-parse_AlternativeTypeLists(Tokens = [{'}',_L1}|_Rest02],Clist0) ->
-    {Clist0,Tokens}.
-
-parse_AlternativeTypeLists2(Tokens,Clist) ->
-    {ExtAdd,Rest} = parse_ExtensionAdditionAlternatives(Tokens,Clist),
-    {Clist2,Rest2} = parse_OptionalExtensionMarker(Rest,lists:flatten(ExtAdd)),
-    case Rest2 of
-	[{',',_}|Rest3] ->
-	    {CompList,Rest4} = parse_AlternativeTypeList(Rest3,[]),
-	    {Clist2 ++ CompList,Rest4};
-	_ ->
-	    {Clist2,Rest2}
-    end.
-
-
-
-parse_AlternativeTypeList([{',',_},Id = {identifier,_,_}|Rest],Acc) when Acc =/= [] ->
-    {AlternativeType,Rest2} = parse_NamedType([Id|Rest]),
-    parse_AlternativeTypeList(Rest2,[AlternativeType|Acc]);
-parse_AlternativeTypeList(Tokens = [{'}',_}|_],Acc) ->
-    {lists:reverse(Acc),Tokens};
-parse_AlternativeTypeList(Tokens = [{']',_},{']',_}|_],Acc) ->
-    {lists:reverse(Acc),Tokens};
-parse_AlternativeTypeList(Tokens = [{',',_},{'...',_}|_],Acc) ->
-    {lists:reverse(Acc),Tokens};
-parse_AlternativeTypeList(Tokens,[]) ->
-    {AlternativeType,Rest} = parse_NamedType(Tokens),
-    parse_AlternativeTypeList(Rest,[AlternativeType]);
-parse_AlternativeTypeList(Tokens,_) ->
-    throw({asn1_error,
-	   {get_line(hd(Tokens)),get(asn1_module),
-	    [got,[get_token(hd(Tokens)),get_token(hd(tl(Tokens)))],
-	     expected,['}',', identifier']]}}).
-
-parse_ExtensionAdditionAlternatives(Tokens =[{',',_}|_],Clist) ->
-    {ExtAddList,Rest2} = parse_ExtensionAdditionAlternativesList(Tokens,[]),
-    {Clist++lists:flatten(ExtAddList),Rest2};
-parse_ExtensionAdditionAlternatives(Tokens,Clist) ->
-    %% Empty
-    {Clist,Tokens}.
+parse_ExtensionAdditionAlternatives([{',',_}|_]=Tokens0) ->
+    parse_ExtensionAdditionAlternativesList(Tokens0, []);
+parse_ExtensionAdditionAlternatives(Tokens) ->
+    {[],Tokens}.
 
-parse_ExtensionAdditionAlternativesList([{',',_},Id = {identifier,_,_}|Rest],Acc) ->
-    {AlternativeType,Rest2} = parse_NamedType([Id|Rest]),
-    parse_ExtensionAdditionAlternativesList(Rest2,[AlternativeType|Acc]);
-parse_ExtensionAdditionAlternativesList([{',',_},C1 = {'[',_},C2 = {'[',_}|Rest],Acc) ->
-    {ExtAddGroup,Rest2} = parse_ExtensionAdditionAlternativesGroup([C1,C2|Rest],[]),
-    parse_ExtensionAdditionAlternativesList(Rest2,[ExtAddGroup|Acc]);
-parse_ExtensionAdditionAlternativesList(Tokens = [{'}',_}|_],Acc) ->
-    {lists:reverse(Acc),Tokens};
-parse_ExtensionAdditionAlternativesList(Tokens = [{',',_},{'...',_}|_],Acc) ->
-    {lists:reverse(Acc),Tokens};
-parse_ExtensionAdditionAlternativesList(Tokens,_) ->
-    throw({asn1_error,
-	   {get_line(hd(Tokens)),get(asn1_module),
-	    [got,[get_token(hd(Tokens)),get_token(hd(tl(Tokens)))],
-	     expected,['}',', identifier']]}}).
-
-
-parse_ExtensionAdditionAlternativesGroup([ {'[',_},{'[',_},_VsnNr = {number,_,Num},{':',_}|Rest],[]) ->
-    parse_ExtensionAdditionAlternativesGroup2(Rest,Num);
-parse_ExtensionAdditionAlternativesGroup([ {'[',_},{'[',_}|Rest],[]) ->
-    parse_ExtensionAdditionAlternativesGroup2(Rest,undefined);
-parse_ExtensionAdditionAlternativesGroup(Tokens,_) ->
-    throw({asn1_error,
-	   {get_line(hd(Tokens)),get(asn1_module),
-	    [got,[get_token(hd(Tokens)),get_token(hd(tl(Tokens)))],
-	     expected,['[[']]}}).
-
-
-parse_ExtensionAdditionAlternativesGroup2(Tokens,Num) ->
-    {CompTypeList,Rest} = parse_AlternativeTypeList(Tokens,[]),
-    case Rest of
-	[{']',_},{']',_}|Rest2] ->
-	    {[{'ExtensionAdditionGroup',Num}|CompTypeList] ++
-		['ExtensionAdditionGroupEnd'],Rest2};
+parse_ExtensionAdditionAlternativesList([{',',_}|Tokens1]=Tokens0, Acc) ->
+    try parse_ExtensionAdditionAlternative(Tokens1) of
+	{ExtAddAlt,Tokens2} ->
+	    parse_ExtensionAdditionAlternativesList(Tokens2, [ExtAddAlt|Acc])
+    catch
+	throw:{asn1_error,_} ->
+	    {lists:append(lists:reverse(Acc)),Tokens0}
+    end;
+parse_ExtensionAdditionAlternativesList(Tokens, Acc) ->
+    {lists:append(lists:reverse(Acc)),Tokens}.
+
+parse_ExtensionAdditionAlternative([#identifier{}|_]=Tokens0) ->
+    {NamedType,Tokens} = parse_NamedType(Tokens0),
+    {[NamedType],Tokens};
+parse_ExtensionAdditionAlternative([{'[',_},{'[',_}|Tokens0]) ->
+    Tokens2 = case Tokens0 of
+		  [{number,_,_},{':',_}|Tokens1] -> Tokens1;
+		  _ -> Tokens0
+	      end,
+    {GroupList,Tokens3} = parse_AlternativeTypeList(Tokens2),
+    case Tokens3 of
+	[{']',_},{']',_}|Tokens] ->
+	    {GroupList,Tokens};
 	_ ->
-	    throw({asn1_error,{get_line(hd(Rest)),get(asn1_module),
-			       [got,get_token(hd(Rest)),expected,[']]']]}})
-    end.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-%% parse_AlternativeTypeLists(Tokens,ExtensionDefault) ->
-%%     {AltTypeList,Rest1} = parse_AlternativeTypeList(Tokens),
-%%     {ExtensionAndException,Rest2} =
-%% 	case Rest1 of
-%% 	    [{',',_},{'...',L1},{'!',_}|Rest12] ->
-%% 		{_,Rest13} = parse_ExceptionIdentification(Rest12),
-%% 		%% Exception info is currently thrown away
-%% 		{[#'EXTENSIONMARK'{pos=L1}],Rest13};
-%% 	    [{',',_},{'...',L1}|Rest12] ->
-%% 		{[#'EXTENSIONMARK'{pos=L1}],Rest12};
-%% 	    _ ->
-%% 		{[],Rest1}
-%% 	end,
-%%     {AltTypeList2,Rest5} =
-%% 	case ExtensionAndException of
-%% 	    [] ->
-%% 		{AltTypeList,Rest2};
-%% 	    _ ->
-%% 		{ExtensionAddition,Rest3} =
-%% 		    case Rest2 of
-%% 			[{',',_}|Rest23] ->
-%% 			    parse_ExtensionAdditionAlternativeList(Rest23);
-%% 			_ ->
-%% 			    {[],Rest2}
-%% 		    end,
-%% 		{OptionalExtensionMarker,Rest4} =
-%% 		    case Rest3 of
-%% 			[{',',_},{'...',L3}|Rest31] ->
-%% 			    {[#'EXTENSIONMARK'{pos=L3}],Rest31};
-%% 			_ ->
-%% 			    {[],Rest3}
-%% 		    end,
-%% 		{AltTypeList ++ ExtensionAndException ++
-%% 		 ExtensionAddition ++ OptionalExtensionMarker, Rest4}
-%% 	end,
-%%     AltTypeList3 =
-%% 	case [X || X=#'EXTENSIONMARK'{} <- AltTypeList2] of
-%% 	    [] when ExtensionDefault == 'IMPLIED' ->
-%% 		AltTypeList2 ++ [#'EXTENSIONMARK'{}];
-%% 	    _ ->
-%% 		AltTypeList2
-%% 	end,
-%%     {AltTypeList3,Rest5}.
-    
-
-%% parse_AlternativeTypeList(Tokens) ->
-%%     parse_AlternativeTypeList(Tokens,[]).
+	    parse_error(Tokens3)
+    end;
+parse_ExtensionAdditionAlternative(Tokens) ->
+    parse_error(Tokens).
 
-%% parse_AlternativeTypeList(Tokens,Acc) ->
-%%     {NamedType,Rest} = parse_NamedType(Tokens),
-%%     case Rest of
-%% 	[{',',_},Id = {identifier,_,_}|Rest2] ->
-%% 	    parse_AlternativeTypeList([Id|Rest2],[NamedType|Acc]);
-%% 	_ ->
-%% 	    {lists:reverse([NamedType|Acc]),Rest}
-%%     end.
+%%%
+%%% End of parsing of alternative type lists.
+%%%
 
-    
-
-%% parse_ExtensionAdditionAlternativeList(Tokens) ->
-%%     parse_ExtensionAdditionAlternativeList(Tokens,[]).
-
-%% parse_ExtensionAdditionAlternativeList([{'[[',_}|Rest],Acc) ->
-%%     parse_ExtensionAdditionAlternativeList(Rest,Acc);
-%% parse_ExtensionAdditionAlternativeList(Tokens = [{identifier,_,_}|_Rest],Acc) ->
-%%     {Element,Rest0} = parse_NamedType(Tokens);
-%%     case Rest0 of
-%% 	[{',',_}|Rest01] ->
-%% 	    parse_ExtensionAdditionAlternativeList(Rest01,[Element|Acc]);
-%% 	_  ->
-%% 	    {lists:reverse([Element|Acc]),Rest0}
-%%     end.
-
-%% parse_ExtensionAdditionAlternatives([{'[[',_}|Rest]) ->
-%%     parse_ExtensionAdditionAlternatives(Rest,[]);
-%% parse_ExtensionAdditionAlternatives(Tokens) ->
-%%     throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-%% 		       [got,get_token(hd(Tokens)),expected,'[[']}}).
-
-%% parse_ExtensionAdditionAlternatives([Id = {identifier,_,_}|Rest],Acc) ->
-%%     {NamedType, Rest2} = parse_NamedType([Id|Rest]),
-%%     case Rest2 of
-%% 	[{',',_}|Rest21] ->
-%% 	    parse_ExtensionAdditionAlternatives(Rest21,[NamedType|Acc]);
-%% 	[{']]',_}|Rest21] ->
-%% 	    {lists:reverse(Acc),Rest21};
-%% 	_ ->
-%% 	    throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
-%% 			       [got,get_token(hd(Rest2)),expected,[',',']]']]}})
-%%     end.
-
-parse_NamedType([{identifier,L1,Idname}|Rest]) ->
+parse_NamedType([#identifier{pos=L1,val=Idname}|Rest]) ->
     {Type,Rest2} = parse_Type(Rest),
     {#'ComponentType'{pos=L1,name=Idname,typespec=Type,prop=mandatory},Rest2};
 parse_NamedType(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,identifier]}}).
+    parse_error(Tokens).
 
+%%%
+%%% Parse component type lists for SEQUENCE and SET.
+%%%
 
 parse_ComponentTypeLists(Tokens) ->
-    parse_ComponentTypeLists(Tokens,[]).
+    parse_ComponentTypeLists(Tokens, []).
 
-parse_ComponentTypeLists(Tokens = [{identifier,_,_}|_Rest0],Clist) ->
-    {CompList,Rest1} = parse_ComponentTypeList(Tokens,[]),
-    parse_ComponentTypeLists(Rest1,Clist++CompList);
-parse_ComponentTypeLists(Tokens = [{'COMPONENTS',_},{'OF',_}|_Rest],Clist) ->
+parse_ComponentTypeLists([#identifier{}|_Rest0]=Tokens, Clist) ->
     {CompList,Rest1} = parse_ComponentTypeList(Tokens,[]),
     parse_ComponentTypeLists(Rest1,Clist++CompList);
-parse_ComponentTypeLists([{'...',L1},{'!',_}|Rest02],Clist0) ->
-    {_,Rest03} = parse_ExceptionIdentification(Rest02),
-    %% Exception info is currently thrown away
-    parse_ComponentTypeLists2(Rest03,Clist0++[#'EXTENSIONMARK'{pos=L1}]);
+parse_ComponentTypeLists([{'COMPONENTS',_},{'OF',_}|_]=Tokens,Clist) ->
+    {CompList,Rest1} = parse_ComponentTypeList(Tokens, []),
+    parse_ComponentTypeLists(Rest1, Clist++CompList);
 parse_ComponentTypeLists([{',',L1},{'...',_},{'!',_}|Rest02],Clist0) when Clist0 =/= []->
     {_,Rest03} = parse_ExceptionIdentification(Rest02),
     %% Exception info is currently thrown away
     parse_ComponentTypeLists2(Rest03,Clist0++[#'EXTENSIONMARK'{pos=L1}]);
-
- parse_ComponentTypeLists([{',',_},{'...',L1}|Rest02],Clist0) when Clist0 =/= []->
+parse_ComponentTypeLists([{',',_},{'...',L1}|Rest02],Clist0) when Clist0 =/= []->
     parse_ComponentTypeLists2(Rest02,Clist0++[#'EXTENSIONMARK'{pos=L1}]);
 parse_ComponentTypeLists([{'...',L1}|Rest02],Clist0) ->
     parse_ComponentTypeLists2(Rest02,Clist0++[#'EXTENSIONMARK'{pos=L1}]);
 parse_ComponentTypeLists(Tokens = [{'}',_L1}|_Rest02],Clist0) ->
-    {Clist0,Tokens}.
+    {Clist0,Tokens};
+parse_ComponentTypeLists(Tokens, _) ->
+    parse_error(Tokens).
 
 parse_ComponentTypeLists2(Tokens,Clist) ->
     {ExtAdd,Rest} = parse_ExtensionAdditions(Tokens,Clist),
@@ -2590,12 +1841,12 @@ parse_OptionalExtensionMarker(Tokens,Clist) ->
     {Clist,Tokens}.
 
 
-parse_ComponentTypeList([{',',_},Id = {identifier,_,_}|Rest],Acc) when Acc =/= [] ->
-    {ComponentType,Rest2} = parse_ComponentType([Id|Rest]),
-    parse_ComponentTypeList(Rest2,[ComponentType|Acc]);
-parse_ComponentTypeList([{',',_},C1={'COMPONENTS',_},C2={'OF',_}|Rest],Acc) when Acc =/= [] ->
-    {ComponentType,Rest2} = parse_ComponentType([C1,C2|Rest]),
-    parse_ComponentTypeList(Rest2,[ComponentType|Acc]);
+parse_ComponentTypeList([{',',_}|[#identifier{}|_]=Tokens0], Acc) when Acc =/= [] ->
+    {ComponentType,Tokens} = parse_ComponentType(Tokens0),
+    parse_ComponentTypeList(Tokens, [ComponentType|Acc]);
+parse_ComponentTypeList([{',',_}|[{'COMPONENTS',_},{'OF',_}|_]=Tokens0], Acc) when Acc =/= [] ->
+    {ComponentType,Tokens} = parse_ComponentType(Tokens0),
+    parse_ComponentTypeList(Tokens, [ComponentType|Acc]);
 parse_ComponentTypeList(Tokens = [{'}',_}|_],Acc) ->
     {lists:reverse(Acc),Tokens};
 parse_ComponentTypeList(Tokens = [{']',_},{']',_}|_],Acc) ->
@@ -2606,10 +1857,7 @@ parse_ComponentTypeList(Tokens,[]) ->
     {ComponentType,Rest} = parse_ComponentType(Tokens),
     parse_ComponentTypeList(Rest,[ComponentType]);
 parse_ComponentTypeList(Tokens,_) ->
-    throw({asn1_error,
-	   {get_line(hd(Tokens)),get(asn1_module),
-	    [got,[get_token(hd(Tokens)),get_token(hd(tl(Tokens)))],
-	     expected,['}',', identifier']]}}).
+    parse_error(Tokens).
 
 parse_ExtensionAdditions(Tokens=[{',',_}|_],Clist) ->
     {ExtAddList,Rest2} = parse_ExtensionAdditionList(Tokens,[]),
@@ -2618,46 +1866,36 @@ parse_ExtensionAdditions(Tokens,Clist) ->
     %% Empty
     {Clist,Tokens}.
 
-parse_ExtensionAdditionList([{',',_},Id = {identifier,_,_}|Rest],Acc) ->
-    {ComponentType,Rest2} = parse_ComponentType([Id|Rest]),
-    parse_ExtensionAdditionList(Rest2,[ComponentType|Acc]);
-parse_ExtensionAdditionList([{',',_},C1={'COMPONENTS',_},C2={'OF',_}|Rest],Acc) ->
-    {ComponentType,Rest2} = parse_ComponentType([C1,C2|Rest]),
-    parse_ExtensionAdditionList(Rest2,[ComponentType|Acc]);
-parse_ExtensionAdditionList([{',',_},C1 = {'[',_},C2 = {'[',_}|Rest],Acc) ->
-    {ExtAddGroup,Rest2} = parse_ExtensionAdditionGroup([C1,C2|Rest],[]),
+parse_ExtensionAdditionList([{',',_}|[#identifier{}|_]=Tokens0], Acc) ->
+    {ComponentType,Tokens} = parse_ComponentType(Tokens0),
+    parse_ExtensionAdditionList(Tokens, [ComponentType|Acc]);
+parse_ExtensionAdditionList([{',',_}|[{'COMPONENTS',_},{'OF',_}|_]=Tokens0], Acc) ->
+    {ComponentType,Tokens} = parse_ComponentType(Tokens0),
+    parse_ExtensionAdditionList(Tokens, [ComponentType|Acc]);
+parse_ExtensionAdditionList([{',',_},{'[',_},{'[',_}|Tokens], Acc) ->
+    {ExtAddGroup,Rest2} = parse_ExtensionAdditionGroup(Tokens),
     parse_ExtensionAdditionList(Rest2,[ExtAddGroup|Acc]);
-parse_ExtensionAdditionList(Tokens = [{'}',_}|_],Acc) ->
+parse_ExtensionAdditionList([{'}',_}|_]=Tokens, Acc) ->
     {lists:reverse(Acc),Tokens};
-parse_ExtensionAdditionList(Tokens = [{',',_},{'...',_}|_],Acc) ->
+parse_ExtensionAdditionList([{',',_},{'...',_}|_]=Tokens, Acc) ->
     {lists:reverse(Acc),Tokens};
-parse_ExtensionAdditionList(Tokens,_) ->
-    throw({asn1_error,
-	   {get_line(hd(Tokens)),get(asn1_module),
-	    [got,[get_token(hd(Tokens)),get_token(hd(tl(Tokens)))],
-	     expected,['}',', identifier']]}}).
-
+parse_ExtensionAdditionList(Tokens, _) ->
+    parse_error(Tokens).
 
-parse_ExtensionAdditionGroup([ {'[',_},{'[',_},_VsnNr = {number,_,Num},{':',_}|Rest],[]) ->
-    parse_ExtensionAdditionGroup2(Rest,Num);
-parse_ExtensionAdditionGroup([ {'[',_},{'[',_}|Rest],[]) ->
-    parse_ExtensionAdditionGroup2(Rest,undefined);
-parse_ExtensionAdditionGroup(Tokens,_) ->
-    throw({asn1_error,
-	   {get_line(hd(Tokens)),get(asn1_module),
-	    [got,[get_token(hd(Tokens)),get_token(hd(tl(Tokens)))],
-	     expected,['[[']]}}).
 
+parse_ExtensionAdditionGroup([{number,_,Num},{':',_}|Tokens]) ->
+    parse_ExtensionAdditionGroup2(Tokens, Num);
+parse_ExtensionAdditionGroup(Tokens) ->
+    parse_ExtensionAdditionGroup2(Tokens, undefined).
 
-parse_ExtensionAdditionGroup2(Tokens,Num) ->
+parse_ExtensionAdditionGroup2(Tokens, Num) ->
     {CompTypeList,Rest} = parse_ComponentTypeList(Tokens,[]),
     case Rest of
 	[{']',_},{']',_}|Rest2] ->
 	    {[{'ExtensionAdditionGroup',Num}|CompTypeList] ++
 		['ExtensionAdditionGroupEnd'],Rest2};
 	_ ->
-	    throw({asn1_error,{get_line(hd(Rest)),get(asn1_module),
-			       [got,get_token(hd(Rest)),expected,[']]']]}})
+	    parse_error(Rest)
     end.
 
 
@@ -2676,83 +1914,81 @@ parse_ComponentType(Tokens) ->
 	    Result
     end.
 
-	    
+%%%
+%%% Parse ENUMERATED.
+%%%
 
-parse_SignedNumber([{number,_,Value}|Rest]) ->
-    {Value,Rest};
-parse_SignedNumber([{'-',_},{number,_,Value}|Rest]) ->
-    {-Value,Rest};
-parse_SignedNumber(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,
-			[number,'-number']]}}).
-
-parse_Enumerations(Tokens=[{identifier,_,_}|_Rest],ExtensionDefault) ->
-    parse_Enumerations(Tokens,[],ExtensionDefault);
-parse_Enumerations([H|_T],_) ->
-    throw({asn1_error,{get_line(H),get(asn1_module),
-		       [got,get_token(H),expected,identifier]}}).
-
-parse_Enumerations(Tokens = [{identifier,_,_},{'(',_}|_Rest], Acc, ExtensionDefault) ->
-    {NamedNumber,Rest2} = parse_NamedNumber(Tokens),
-    case Rest2 of
-	[{',',_}|Rest3] ->
-	    parse_Enumerations(Rest3,[NamedNumber|Acc], ExtensionDefault);
-	_ when ExtensionDefault == 'IMPLIED'->
-	    {lists:reverse(['EXTENSIONMARK',NamedNumber|Acc]),Rest2};
+parse_Enumerations(Tokens0) ->
+    {Root,Tokens1} = parse_Enumeration(Tokens0),
+    case Tokens1 of
+	[{',',_},{'...',_},{',',_}|Tokens2] ->
+	    {Ext,Tokens} = parse_Enumeration(Tokens2),
+	    {Root++['EXTENSIONMARK'|Ext],Tokens};
+	[{',',_},{'...',_}|Tokens] ->
+	    {Root++['EXTENSIONMARK'],Tokens};
 	_ ->
-	    {lists:reverse([NamedNumber|Acc]),Rest2}
-    end;
-parse_Enumerations([{identifier,_,Id}|Rest], Acc, ExtensionDefault) ->
-    case Rest of
-	[{',',_}|Rest2] ->
-	    parse_Enumerations(Rest2,[Id|Acc], ExtensionDefault);
-	_ when ExtensionDefault == 'IMPLIED' ->
-	    {lists:reverse(['EXTENSIONMARK', Id |Acc]),Rest};
-	_ ->
-	    {lists:reverse([Id|Acc]),Rest}
-    end;
-parse_Enumerations([{'...',_}|Rest], Acc, _ExtensionDefault) ->
-    case Rest of
-	[{',',_}|Rest2] ->
-	    parse_Enumerations(Rest2,['EXTENSIONMARK'|Acc],undefined);
-	_ ->
-	    {lists:reverse(['EXTENSIONMARK'|Acc]),Rest}
+	    case get(extensiondefault) of
+		'IMPLIED' ->
+		    {Root++['EXTENSIONMARK'],Tokens1};
+		_ ->
+		    {Root,Tokens1}
+	    end
+    end.
+
+parse_Enumeration(Tokens0) ->
+    {Item,Tokens} = parse_EnumerationItem(Tokens0),
+    parse_Enumeration_1(Tokens, [Item]).
+
+parse_Enumeration_1([{',',_}|Tokens1]=Tokens0, Acc) ->
+    try parse_EnumerationItem(Tokens1) of
+	{Item,Tokens} ->
+	    parse_Enumeration_1(Tokens, [Item|Acc])
+    catch
+	throw:{asn1_error,_} ->
+	    {lists:reverse(Acc),Tokens0}
     end;
-parse_Enumerations([H|_T],_,_) ->
-    throw({asn1_error,{get_line(H),get(asn1_module),
-		       [got,get_token(H),expected,identifier]}}).
+parse_Enumeration_1(Tokens, Acc) ->
+    {lists:reverse(Acc),Tokens}.
+
+parse_EnumerationItem([#identifier{},{'(',_}|_]=Tokens) ->
+    parse_NamedNumber(Tokens);
+parse_EnumerationItem([#identifier{val=Id}|Tokens]) ->
+    {Id,Tokens};
+parse_EnumerationItem(Tokens) ->
+    parse_error(Tokens).
+
+%%%
+%%% End of parsing of ENUMERATED.
+%%%
 
 parse_NamedNumberList(Tokens) ->
-    parse_NamedNumberList(Tokens,[]).
+    parse_NamedNumberList(Tokens, []).
 
-parse_NamedNumberList(Tokens,Acc) ->
+parse_NamedNumberList(Tokens, Acc) ->
     {NamedNum,Rest} = parse_NamedNumber(Tokens),
     case Rest of
 	[{',',_}|Rest2] ->
 	    parse_NamedNumberList(Rest2,[NamedNum|Acc]);
 	_ ->
-	    {lists:reverse([NamedNum|Acc]),Rest}
+	    {lists:reverse(Acc, [NamedNum]),Rest}
     end.
 
-parse_NamedNumber([{identifier,_,Name},{'(',_}|Rest]) ->
+parse_NamedNumber([#identifier{val=Name},{'(',_}|Rest]) ->
     Flist = [fun parse_SignedNumber/1,
 	     fun parse_DefinedValue/1],
-    case (catch parse_or(Rest,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
+    case parse_or(Rest, Flist) of
 	{NamedNum,[{')',_}|Rest2]} ->
 	    {{'NamedNumber',Name,NamedNum},Rest2};
 	_ ->
-	    throw({asn1_error,{get_line(hd(Rest)),get(asn1_module),
-			       [got,get_token(hd(Rest)),expected,'NamedNumberList']}})
+	    parse_error(Rest)
     end;
 parse_NamedNumber(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,identifier]}}).
+    parse_error(Tokens).
 
+parse_SignedNumber([{number,_,Value}|Rest]) ->
+    {Value,Rest};
+parse_SignedNumber(Tokens) ->
+    parse_error(Tokens).
 
 parse_Tag([{'[',_}|Rest]) ->
     {Class,Rest2} = parse_Class(Rest),
@@ -2767,12 +2003,8 @@ parse_Tag([{'[',_}|Rest]) ->
 	[{']',_}|Rest4] ->
 	    {#tag{class=Class,number=ClassNumber},Rest4};
 	_ ->
-	    throw({asn1_error,{get_line(hd(Rest3)),get(asn1_module),
-			       [got,get_token(hd(Rest3)),expected,']']}})
-    end;
-parse_Tag(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,'[']}}).
+	    parse_error(Rest3)
+    end.
 
 parse_Class([{'UNIVERSAL',_}|Rest]) ->
     {'UNIVERSAL',Rest};
@@ -2791,15 +2023,7 @@ parse_Value(Tokens) ->
     Flist = [fun parse_BuiltinValue/1,
 	     fun parse_ValueFromObject/1,
 	     fun parse_DefinedValue/1],
-
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
-	Result ->
-	    Result
-    end.
+    parse_or(Tokens, Flist).
 
 parse_BuiltinValue([{bstring,_,Bstr}|Rest]) ->
     {{bstring,Bstr},Rest};
@@ -2812,18 +2036,11 @@ parse_BuiltinValue(Tokens = [{'{',_}|_Rest]) ->
 	     fun parse_SequenceOfValue/1, 
 	     fun parse_SequenceValue/1, 
 	     fun parse_ObjectIdentifierValue/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
-	Result ->
-	    Result
-    end;
-parse_BuiltinValue([{identifier,_,IdName},{':',_}|Rest]) ->
+    parse_or(Tokens, Flist);
+parse_BuiltinValue([#identifier{val=IdName},{':',_}|Rest]) ->
     {Value,Rest2} = parse_Value(Rest),
     {{'CHOICE',{IdName,Value}},Rest2};
-parse_BuiltinValue(Tokens=[{'NULL',_},{':',_}|_Rest])  ->
+parse_BuiltinValue([{'NULL',_},{':',_}|_]=Tokens)  ->
     parse_ObjectClassFieldValue(Tokens);
 parse_BuiltinValue([{'NULL',_}|Rest])  ->
     {'NULL',Rest};
@@ -2839,31 +2056,29 @@ parse_BuiltinValue([{cstring,_,Cstr}|Rest]) ->
     {Cstr,Rest};
 parse_BuiltinValue([{number,_,Num}|Rest]) ->
     {Num,Rest};
-parse_BuiltinValue([{'-',_},{number,_,Num}|Rest]) ->
-    {- Num,Rest};
 parse_BuiltinValue(Tokens) ->
     parse_ObjectClassFieldValue(Tokens).
 
-parse_DefinedValue(Tokens=[{identifier,_,_},{'{',_}|_Rest]) ->
-    parse_ParameterizedValue(Tokens);
-%% Externalvaluereference
-parse_DefinedValue([{typereference,L1,Tname},{'.',_},{identifier,_,Idname}|Rest]) ->
+parse_DefinedValue(Tokens) ->
+    Flist = [fun parse_ParameterizedValue/1,
+	     fun parse_DefinedValue2/1],
+    parse_or(Tokens, Flist).
+
+parse_DefinedValue2([{typereference,L1,Tname},
+		     {'.',_},
+		     #identifier{val=Idname}|Rest]) ->
     {#'Externalvaluereference'{pos=L1,module=Tname,value=Idname},Rest};
 %% valuereference
-parse_DefinedValue([Id = {identifier,_,_}|Rest]) ->
+parse_DefinedValue2([#identifier{}=Id|Rest]) ->
     {identifier2Extvalueref(Id),Rest};
-%% ParameterizedValue
-parse_DefinedValue(Tokens) ->
-    parse_ParameterizedValue(Tokens).
+parse_DefinedValue2(Tokens) ->
+    parse_error(Tokens).
 
 
 parse_SequenceValue([{'{',_}|Tokens]) ->
-    parse_SequenceValue(Tokens,[]);
-parse_SequenceValue(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,'{']}}).
+    parse_SequenceValue(Tokens, []).
 
-parse_SequenceValue([{identifier,Pos,IdName}|Rest],Acc) ->
+parse_SequenceValue([#identifier{pos=Pos,val=IdName}|Rest],Acc) ->
     {Value,Rest2} = parse_Value(Rest),
     SeqTag = #seqtag{pos=Pos,module=get(asn1_module),val=IdName},
     case Rest2 of
@@ -2872,18 +2087,13 @@ parse_SequenceValue([{identifier,Pos,IdName}|Rest],Acc) ->
 	[{'}',_}|Rest3] ->
 	    {lists:reverse(Acc, [{SeqTag,Value}]),Rest3};
 	_ ->
-	    throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
-			       [got,get_token(hd(Rest2)),expected,'}']}})
+	    parse_error(Rest2)
     end;
 parse_SequenceValue(Tokens,_Acc) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,identifier]}}).
+    parse_error(Tokens).
 
 parse_SequenceOfValue([{'{',_}|Tokens]) ->
-    parse_SequenceOfValue(Tokens,[]);
-parse_SequenceOfValue(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,'{']}}).
+    parse_SequenceOfValue(Tokens, []).
 
 parse_SequenceOfValue(Tokens,Acc) ->
     {Value,Rest2} = parse_Value(Tokens),
@@ -2891,10 +2101,9 @@ parse_SequenceOfValue(Tokens,Acc) ->
 	[{',',_}|Rest3] ->
 	    parse_SequenceOfValue(Rest3,[Value|Acc]);
 	[{'}',_}|Rest3] ->
-	    {lists:reverse([Value|Acc]),Rest3};
+	    {lists:reverse(Acc, [Value]),Rest3};
 	_ ->
-	    throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
-			       [got,get_token(hd(Rest2)),expected,'}']}})
+	    parse_error(Rest2)
     end.
 
 parse_ValueSetTypeAssignment([{typereference,L1,Name}|Rest]) ->
@@ -2904,49 +2113,31 @@ parse_ValueSetTypeAssignment([{typereference,L1,Name}|Rest]) ->
 	    {ValueSet,Rest4} = parse_ValueSet(Rest3),
 	    {#valuedef{pos=L1,name=Name,type=Type,value=ValueSet,
 		       module=get(asn1_module)},Rest4};
-	[H|_T] ->
-	    throw({asn1_error,{get_line(L1),get(asn1_module),
-			       [got,get_token(H),expected,'::=']}})
-    end;
-parse_ValueSetTypeAssignment(Tokens) ->
-    throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
-				  [got,get_token(hd(Tokens)),expected,
-				   typereference]}}).
+	_ ->
+	    parse_error(Rest2)
+    end.
 
 parse_ValueSet([{'{',_}|Rest]) ->
     {Elems,Rest2} = parse_ElementSetSpecs(Rest),
     case Rest2 of
 	[{'}',_}|Rest3] ->
 	    {{valueset,Elems},Rest3};
-	[H|_T] ->
-	    throw({asn1_error,{get_line(H),get(asn1_module),
-			       [got,get_token(H),expected,'}']}})
+	_ ->
+	    parse_error(Rest2)
     end;
 parse_ValueSet(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,'{']}}).
+    parse_error(Tokens).
 
-parse_ValueAssignment([{identifier,L1,IdName}|Rest]) ->
+parse_ValueAssignment([#identifier{pos=L1,val=IdName}|Rest]) ->
     {Type,Rest2} = parse_Type(Rest),
     case Rest2 of
 	[{'::=',_}|Rest3] ->
 	    {Value,Rest4} = parse_Value(Rest3),
-	    case catch lookahead_assignment(Rest4) of
-		ok ->
-		    {#valuedef{pos=L1,name=IdName,type=Type,value=Value,
-			       module=get(asn1_module)},Rest4};
-		Error ->
-		    throw(Error)
-%% 		    throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
-%% 				       [got,get_token(hd(Rest2)),expected,'::=']}})
-	    end;
+	    {#valuedef{pos=L1,name=IdName,type=Type,value=Value,
+		       module=get(asn1_module)},Rest4};
 	_ ->
-	    throw({asn1_error,{get_line(hd(Rest2)),get(asn1_module),
-			       [got,get_token(hd(Rest2)),expected,'::=']}})
-    end;
-parse_ValueAssignment(Tokens) ->
-    throw({asn1_assignment_error,{get_line(hd(Tokens)),get(asn1_module),
-				  [got,get_token(hd(Tokens)),expected,identifier]}}).
+	    parse_error(Rest2)
+    end.
 
 %% SizeConstraint
 parse_SubtypeElements([{'SIZE',_}|Tokens]) ->
@@ -2966,8 +2157,7 @@ parse_SubtypeElements([{'WITH',_},{'COMPONENTS',_},{'{',_},{'...',_},{',',_}|Tok
 	[{'}',_}|Rest2] ->
 	    {{'WITH COMPONENTS',{'PartialSpecification',Constraint}},Rest2};
 	_ ->
-	    throw({asn1_error,{get_line(hd(Rest)),get(asn1_module),
-			       [got,get_token(hd(Rest)),expected,'}']}})
+	    parse_error(Rest)
     end;
 parse_SubtypeElements([{'WITH',_},{'COMPONENTS',_},{'{',_}|Tokens]) ->
     {Constraint,Rest} = parse_TypeConstraints(Tokens),
@@ -2975,28 +2165,18 @@ parse_SubtypeElements([{'WITH',_},{'COMPONENTS',_},{'{',_}|Tokens]) ->
 	[{'}',_}|Rest2] ->
 	    {{'WITH COMPONENTS',{'FullSpecification',Constraint}},Rest2};
 	_ ->
-	    throw({asn1_error,{get_line(hd(Rest)),get(asn1_module),
-			       [got,get_token(hd(Rest)),expected,'}']}})
+	    parse_error(Rest)
     end;
 parse_SubtypeElements([{'PATTERN',_}|Tokens]) ->
     {Value,Rest} = parse_Value(Tokens),
     {{pattern,Value},Rest};
-%% SingleValue
-%% ContainedSubtype
-%% ValueRange
-%% TypeConstraint
-%% Moved fun parse_Value/1 and fun parse_Type/1 to parse_Elements
 parse_SubtypeElements(Tokens) ->
     Flist = [fun parse_ContainedSubtype/1,
 	     fun parse_Value/1, 
-	     fun([{'MIN',_}|T]) -> {'MIN',T} end,
+	     fun parse_MIN/1,
 	     fun parse_Type/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	{asn1_error,Reason} ->
-	    throw(Reason);
-	Result = {Val,_} when is_record(Val,type) ->
+    case parse_or(Tokens, Flist) of
+	{#type{},_}=Result ->
 	    Result;
 	{Lower,[{'..',_}|Rest]} ->
 	    {Upper,Rest2} = parse_UpperEndpoint(Rest),
@@ -3014,10 +2194,7 @@ parse_ContainedSubtype([{'INCLUDES',_}|Rest]) ->
     {Type,Rest2} = parse_Type(Rest),
     {{'ContainedSubtype',Type},Rest2};
 parse_ContainedSubtype(Tokens) ->
-    throw({asn1_error,{get_line(hd(Tokens)),get(asn1_module),
-		       [got,get_token(hd(Tokens)),expected,'INCLUDES']}}).
-%%parse_ContainedSubtype(Tokens) -> %this option is moved to parse_SubtypeElements
-%%    parse_Type(Tokens).
+    parse_error(Tokens).
 
 parse_UpperEndpoint([{'<',_}|Rest]) ->
     parse_UpperEndpoint(lt,Rest);
@@ -3025,33 +2202,38 @@ parse_UpperEndpoint(Tokens) ->
     parse_UpperEndpoint(false,Tokens).
 
 parse_UpperEndpoint(Lt,Tokens) ->
-    Flist = [ fun([{'MAX',_}|T]) -> {'MAX',T} end,
-	      fun parse_Value/1],
-    case (catch parse_or(Tokens,Flist)) of
-	{'EXIT',Reason} ->
-	    exit(Reason);
-	AsnErr = {asn1_error,_} ->
-	    throw(AsnErr);
-	{Value,Rest2} when Lt == lt ->
+    Flist = [fun parse_MAX/1,
+	     fun parse_Value/1],
+    case parse_or(Tokens, Flist) of
+	{Value,Rest2} when Lt =:= lt ->
 	    {{lt,Value},Rest2};
 	{Value,Rest2} ->
 	    {Value,Rest2}
     end.
 
+parse_MIN([{'MIN',_}|T]) ->
+    {'MIN',T};
+parse_MIN(Tokens) ->
+    parse_error(Tokens).
+
+parse_MAX([{'MAX',_}|T]) ->
+    {'MAX',T};
+parse_MAX(Tokens) ->
+    parse_error(Tokens).
+
 parse_TypeConstraints(Tokens) ->
-    parse_TypeConstraints(Tokens,[]).
+    parse_TypeConstraints(Tokens, []).
 
-parse_TypeConstraints([{identifier,_,_}|Rest],Acc) ->
+parse_TypeConstraints([#identifier{}|Rest], Acc) ->
     {ComponentConstraint,Rest2} = parse_ComponentConstraint(Rest),
     case Rest2 of
 	[{',',_}|Rest3] ->
-	    parse_TypeConstraints(Rest3,[ComponentConstraint|Acc]);
+	    parse_TypeConstraints(Rest3, [ComponentConstraint|Acc]);
 	_ ->
-	    {lists:reverse([ComponentConstraint|Acc]),Rest2}
+	    {lists:reverse(Acc, [ComponentConstraint]),Rest2}
     end;
-parse_TypeConstraints([H|_T],_) ->
-    throw({asn1_error,{get_line(H),get(asn1_module),
-		       [got,get_token(H),expected,identifier]}}).
+parse_TypeConstraints(Tokens, _) ->
+    parse_error(Tokens).
 
 parse_ComponentConstraint(Tokens = [{'(',_}|_Rest]) ->
     {ValueConstraint,Rest2} = parse_Constraint(Tokens),
@@ -3071,145 +2253,36 @@ parse_PresenceConstraint(Tokens) ->
     {asn1_empty,Tokens}.
 
 
-% merge_constraints({Rlist,ExtList}) -> % extensionmarker in constraint
-%     {merge_constraints(Rlist,[],[]),
-%      merge_constraints(ExtList,[],[])};
-
-%% An arg with a constraint with extension marker will look like
-%% [#constraint{c={Root,Ext}}|Rest]
-	
 merge_constraints(Clist) ->
     merge_constraints(Clist, [], []).
 
-merge_constraints([Ch|Ct],Cacc, Eacc) ->
-    NewEacc = case Ch#constraint.e of
-		  undefined -> Eacc;
-		  E -> [E|Eacc]
-	      end,
-    merge_constraints(Ct,[fixup_constraint(Ch#constraint.c)|Cacc],NewEacc);
-
-merge_constraints([],Cacc,[]) ->
-%%    lists:flatten(Cacc);
+merge_constraints([#constraint{c=C,e=E}|T], Cacc0, Eacc0) ->
+    Eacc = case E of
+	       undefined -> Eacc0;
+	       E -> [E|Eacc0]
+	   end,
+    Cacc = [C|Cacc0],
+    merge_constraints(T, Cacc, Eacc);
+merge_constraints([], Cacc, []) ->
     lists:reverse(Cacc);
-merge_constraints([],Cacc,Eacc) ->
-%%    lists:flatten(Cacc) ++ [{'Errors',Eacc}].
-    lists:reverse(Cacc) ++ [{'Errors',Eacc}].
-
-
-fixup_constraint(C) ->
-    case C of
-	{'SingleValue',SubType} when element(1,SubType) == 'ContainedSubtype' ->
-	    SubType;
-	{'SingleValue',V} when is_list(V) ->
-	    C;
-	%%	    [C,{'ValueRange',{lists:min(V),lists:max(V)}}]; 
-	%% bug, turns wrong when an element in V is a reference to a defined value
-	{'PermittedAlphabet',{'SingleValue',V}} when is_list(V) ->
-	    %%sort and remove duplicates
-	    V2 = {'SingleValue',
-		  ordsets:from_list(lists:flatten(V))},
-	    {'PermittedAlphabet',V2};
-	{'PermittedAlphabet',{'SingleValue',V}} ->
-	    V2 = {'SingleValue',[V]},
-	    {'PermittedAlphabet',V2};
-	{'SizeConstraint',Sc} ->
-	    {'SizeConstraint',fixup_size_constraint(Sc)};
-	
-	List when is_list(List) ->  %% In This case maybe a union or intersection
-	    [fixup_constraint(Xc)||Xc <- List];
-	Other ->
-	    Other
-    end.
+merge_constraints([], Cacc, Eacc) ->
+    lists:reverse(Cacc) ++ [{element_set,{'Errors',Eacc},none}].
 
-fixup_size_constraint({'ValueRange',{Lb,Ub}}) ->
-	{Lb,Ub};
-fixup_size_constraint({{'ValueRange',R},[]}) ->
-	{R,[]};
-fixup_size_constraint({[],{'ValueRange',R}}) ->
-	{[],R};
-fixup_size_constraint({{'ValueRange',R1},{'ValueRange',R2}}) ->
-	{R1,R2};
-fixup_size_constraint({'SingleValue',[Sv]}) ->
-	fixup_size_constraint({'SingleValue',Sv});
-fixup_size_constraint({'SingleValue',L}) when is_list(L) ->
-	ordsets:from_list(L);
-fixup_size_constraint({'SingleValue',L}) ->
-	{L,L};
-fixup_size_constraint({'SizeConstraint',C}) ->
-    %% this is a second SIZE
-    fixup_size_constraint(C);
-fixup_size_constraint({C1,C2}) ->
-    %% this is with extension marks
-    {turn2vr(fixup_size_constraint(C1)), extension_size(fixup_size_constraint(C2))};
-fixup_size_constraint(CList) when is_list(CList) ->
-    [fixup_constraint(Xc)||Xc <- CList].
-   
-turn2vr(L) when is_list(L) ->
-    L2 =[X||X<-ordsets:from_list(L),is_integer(X)],
-    case L2 of
-	[H|_] ->
-	    {H,hd(lists:reverse(L2))};
-	_ ->
-	    L
-    end;
-turn2vr(VR) ->
-    VR.
-extension_size({I,I}) ->
-    [I];
-extension_size({I1,I2}) ->
-    [I1,I2];
-extension_size(C) ->
-    C.
-
-get_line({_,Pos,Token}) when is_integer(Pos),is_atom(Token) ->
+get_line({Token,Pos,_}) when is_integer(Pos), is_atom(Token) ->
     Pos;
 get_line({Token,Pos}) when is_integer(Pos),is_atom(Token) ->
-    Pos;
-get_line(_) ->
-    undefined.
-
-get_token({_,Pos,Token}) when is_integer(Pos),is_atom(Token) ->
-    Token;
+    Pos.
+
+get_token({valuefieldreference,_,FieldName}) ->
+    list_to_atom([$&|atom_to_list(FieldName)]);
+get_token({typefieldreference,_,FieldName}) ->
+    list_to_atom([$&|atom_to_list(FieldName)]);
+get_token({Token,Pos,Value}) when is_integer(Pos), is_atom(Token) ->
+    Value;
 get_token({'$end',Pos}) when is_integer(Pos) ->
-    undefined;
+    'END-OF-FILE';
 get_token({Token,Pos}) when is_integer(Pos),is_atom(Token) ->
-    Token;
-get_token(_) ->
-    undefined.
-
-prioritize_error(ErrList) ->
-    case lists:keymember(asn1_error,1,ErrList) of
-	false -> % only asn1_assignment_error -> take the last
-	    lists:last(ErrList);
-	true -> % contains errors from deeper in a Type
-	    NewErrList = [_Err={_,_}|_RestErr] =
-		lists:filter(fun({asn1_error,_})->true;(_)->false end,
-			     ErrList),
-	    SplitErrs =
-		lists:splitwith(fun({_,X})->
-					case element(1,X) of
-					    Int when is_integer(Int) -> true;
-					    _ -> false
-					end
-				end,
-				NewErrList),
-	    case SplitErrs of
-		{[],UndefPosErrs} -> % if no error with Positon exists
-		    lists:last(UndefPosErrs);
-		{IntPosErrs,_} ->
-		    IntPosReasons = lists:map(fun(X)->element(2,X) end,IntPosErrs),
-		    SortedReasons = lists:keysort(1,IntPosReasons),
-		    {asn1_error,lists:last(SortedReasons)}
-	    end
-    end.
-
-%% most_prio_error([H={_,Reason}|T],Atom,Err) when is_atom(Atom) ->
-%%     most_prio_error(T,element(1,Reason),H);
-%% most_prio_error([H={_,Reason}|T],Greatest,Err) ->
-%%     case element(1,Reason) of
-%% 	Pos when is_integer(Pos),Pos>Greatest ->
-%% 	    most_prio_error(
-
+    Token.
 
 tref2Exttref(#typereference{pos=Pos,val=Name}) ->
     #'Externaltypereference'{pos=Pos,
@@ -3226,19 +2299,5 @@ identifier2Extvalueref(#identifier{pos=Pos,val=Name}) ->
 			      module=resolve_module(Name),
 			      value=Name}.
 
-%% lookahead_assignment/1 checks that the next sequence of tokens
-%% in Token contain a valid assignment or the
-%% 'END' token. Otherwise an exception is thrown.
-lookahead_assignment([{'END',_}|_Rest]) ->
-    ok;
-lookahead_assignment(Tokens) ->
-    parse_Assignment(Tokens),
-    ok.
-	
-is_pre_defined_class('TYPE-IDENTIFIER') ->
-    true;
-is_pre_defined_class('ABSTRACT-SYNTAX') ->
-    true;
-is_pre_defined_class(_) ->
-    false.
-    
+parse_error(Tokens) ->
+    throw({asn1_error,{parse_error,Tokens}}).
diff --git a/lib/asn1/src/asn1ct_tok.erl b/lib/asn1/src/asn1ct_tok.erl
index 8687ed955c..d51fea6402 100644
--- a/lib/asn1/src/asn1ct_tok.erl
+++ b/lib/asn1/src/asn1ct_tok.erl
@@ -21,191 +21,177 @@
 
 %% Tokenize ASN.1 code (input to parser generated with yecc)   
 
--export([get_name/2,tokenise/4, file/1]).
+-export([file/1,format_error/1]).
 
-
-file(File) ->
-    case file:open(File, [read])  of
+file(File0) ->
+    case file:open(File0, [read])  of
 	{error, Reason} ->
-	    {error,{File,file:format_error(Reason)}};
+	    {error,{File0,file:format_error(Reason)}};
 	{ok,Stream} ->
-	    process(Stream,0,[])
+	    try
+		process(Stream, 1, [])
+	    catch
+		throw:{error,Line,Reason} ->
+		    File = filename:basename(File0),
+		    Error = {structured_error,{File,Line},?MODULE,Reason},
+		    {error,[Error]}
+	    end
     end.
 
-process(Stream,Lno,R) ->
-    process(io:get_line(Stream, ''), Stream,Lno+1,R).
+process(Stream, Lno, R) ->
+    process(io:get_line(Stream, ''), Stream, Lno, R).
 
-process(eof, Stream,Lno,R) ->
+process(eof, Stream, Lno, Acc) ->
     ok = file:close(Stream),
-    lists:flatten(lists:reverse([{'$end',Lno}|R]));
-
-
-process(L, Stream,Lno,R) when is_list(L) ->
-    %%io:format('read:~s',[L]),
-    case catch tokenise(Stream,L,Lno,[]) of
-	{'ERR',Reason} ->
-	    io:format("Tokeniser error on line: ~w ~w~n",[Lno,Reason]),
-	    exit(0);
-	{NewLno,T} ->
-	    %%io:format('toks:~w~n',[T]),
-	    process(Stream,NewLno,[T|R])
-    end. 
-
-tokenise(Stream,[H|T],Lno,R) when $a =< H , H =< $z ->
-    {X, T1} = get_name(T, [H]),
-    tokenise(Stream,T1,Lno,[{identifier,Lno, list_to_atom(X)}|R]);
-
-tokenise(Stream,[$&,H|T],Lno,R) when $A =< H , H =< $Z ->
-    {Y, T1} = get_name(T, [H]),
-    X = list_to_atom(Y),
-    tokenise(Stream,T1,Lno,[{typefieldreference, Lno, X} | R]);
-
-tokenise(Stream,[$&,H|T],Lno,R) when $a =< H , H =< $z ->
-    {Y, T1} = get_name(T, [H]),
-    X = list_to_atom(Y),
-    tokenise(Stream,T1,Lno,[{valuefieldreference, Lno, X} | R]);
-
-tokenise(Stream,[H|T],Lno,R) when $A =< H , H =< $Z ->
-    {Y, T1} = get_name(T, [H]),
-    X = list_to_atom(Y),
-    case reserved_word(X) of
-	true ->
-	    tokenise(Stream,T1,Lno,[{X,Lno}|R]);
-	false ->
-	    tokenise(Stream,T1,Lno,[{typereference,Lno,X}|R]);
-	rstrtype ->
-	    tokenise(Stream,T1,Lno,[{restrictedcharacterstringtype,Lno,X}|R])
-    end;
-
-tokenise(Stream,[$-,H|T],Lno,R) when $0 =< H , H =< $9 ->
-    {X, T1} = get_number(T, [H]),
-    tokenise(Stream,T1,Lno,[{number,Lno,-1 * list_to_integer(X)}|R]);
+    lists:reverse([{'$end',Lno}|Acc]);
+process(L, Stream, Lno0, Acc) when is_list(L) ->
+    try tokenise(Stream, L, Lno0, []) of
+	{Lno,[]} ->
+	    process(Stream, Lno, Acc);
+	{Lno,Ts} ->
+	    process(Stream, Lno, Ts++Acc)
+    catch
+	throw:{error,Reason} ->
+	    throw({error,Lno0,Reason})
+    end.
 
-tokenise(Stream,[H|T],Lno,R) when $0 =< H , H =< $9 ->
+format_error(eof_in_comment) ->
+    "premature end of file in multi-line comment";
+format_error(eol_in_token) ->
+    "end of line in token";
+format_error({invalid_binary_number,Str}) ->
+    io_lib:format("invalid binary number: '~s'", [Str]);
+format_error({invalid_hex_number,Str}) ->
+    io_lib:format("invalid hex number: '~s'", [Str]);
+format_error(Other) ->
+    io_lib:format("~p", [Other]).
+
+tokenise(Stream, [$&,H|T], Lno, R) when $A =< H , H =< $Z ->
+    {X,T1} = get_name(T, [H]),
+    tokenise(Stream, T1, Lno, [{typefieldreference,Lno,X}|R]);
+tokenise(Stream, [$&,H|T], Lno, R) when $a =< H , H =< $z ->
+    {X,T1} = get_name(T, [H]),
+    tokenise(Stream, T1, Lno, [{valuefieldreference,Lno,X}|R]);
+
+tokenise(Stream, "--"++T, Lno, R) ->
+    tokenise(Stream, skip_comment(T), Lno, R);
+
+tokenise(Stream, [$-,H|T], Lno, R) when $0 =< H , H =< $9 ->
     {X, T1} = get_number(T, [H]),
-    tokenise(Stream,T1,Lno,[{number,Lno,list_to_integer(X)}|R]);
-
-tokenise(Stream,[$-,$-|T],Lno,R) ->
-    tokenise(Stream,skip_comment(T),Lno,R);
+    tokenise(Stream, T1, Lno, [{number,Lno,-list_to_integer(X)}|R]);
 
-tokenise(Stream,[$/,$*|T],Lno,R) ->
-    {NewLno,T1} = skip_multiline_comment(Stream,T,Lno,0),
-    tokenise(Stream,T1,NewLno,R);
+tokenise(Stream, "/*"++T, Lno0, R) ->
+    {Lno,T1} = skip_multiline_comment(Stream, T, Lno0, 0),
+    tokenise(Stream, T1, Lno, R);
 
-tokenise(Stream,[$:,$:,$=|T],Lno,R) ->
-    tokenise(Stream,T,Lno,[{'::=',Lno}|R]);
-
-tokenise(Stream,[$'|T],Lno,R) ->
-    case catch collect_quoted(T,Lno,[]) of
-         {'ERR',_} ->
-             throw({'ERR','bad_quote'});
-         {Thing, T1} ->
-             tokenise(Stream,T1,Lno,[Thing|R])
-    end;
+tokenise(Stream, "::="++T, Lno, R) ->
+    tokenise(Stream, T, Lno, [{'::=',Lno}|R]);
+tokenise(Stream, ":"++T, Lno, R) ->
+    tokenise(Stream, T, Lno, [{':',Lno}|R]);
 
+tokenise(Stream, "'"++T0, Lno, R) ->
+    {Thing, T1} = collect_quoted(T0, Lno, []),
+    tokenise(Stream, T1, Lno, [Thing|R]);
 tokenise(Stream,[$"|T],Lno,R) ->
     {Str,T1} = collect_string(T,Lno),
     tokenise(Stream,T1,Lno,[Str|R]);
 
-tokenise(Stream,[${|T],Lno,R) ->
-    tokenise(Stream,T,Lno,[{'{',Lno}|R]);
-
-tokenise(Stream,[$}|T],Lno,R) ->
-    tokenise(Stream,T,Lno,[{'}',Lno}|R]);
-
-%% tokenise(Stream,[$],$]|T],Lno,R) ->
-%%     tokenise(Stream,T,Lno,[{']]',Lno}|R]);
+tokenise(Stream, "{"++T, Lno, R) ->
+    tokenise(Stream, T, Lno, [{'{',Lno}|R]);
+tokenise(Stream, "}"++T, Lno, R) ->
+    tokenise(Stream, T, Lno, [{'}',Lno}|R]);
 
 %% Even though x.680 specify '[[' and ']]' as lexical items
-%% it does not work to have them as such since the single [ and ] can
-%% be used beside each other in the SYNTAX OF in x.681
-%% the solution chosen here , i.e. to have them as separate lexical items
+%% it does not work to have them as such since the single '[' and ']' can
+%% be used beside each other in 'WITH SYNTAX' in x.681.
+%% The solution chosen here, i.e. to have them as separate lexical items
 %% will not detect the cases where there is white space between them
-%% which would be an error in the use in ExtensionAdditionGroups
-
-%% tokenise(Stream,[$[,$[|T],Lno,R) ->
-%%     tokenise(Stream,T,Lno,[{'[[',Lno}|R]);
-
-tokenise(Stream,[$]|T],Lno,R) ->
-    tokenise(Stream,T,Lno,[{']',Lno}|R]);
-
-tokenise(Stream,[$[|T],Lno,R) ->
-    tokenise(Stream,T,Lno,[{'[',Lno}|R]);
+%% which would be an error in the use in ExtensionAdditionGroups.
 
-tokenise(Stream,[$,|T],Lno,R) ->
-    tokenise(Stream,T,Lno,[{',',Lno}|R]);
+tokenise(Stream, "]"++T, Lno, R) ->
+    tokenise(Stream, T, Lno, [{']',Lno}|R]);
+tokenise(Stream, "["++T,Lno,R) ->
+    tokenise(Stream, T, Lno, [{'[',Lno}|R]);
 
-tokenise(Stream,[$(|T],Lno,R) ->
-    tokenise(Stream,T,Lno,[{'(',Lno}|R]);
-tokenise(Stream,[$)|T],Lno,R) ->
-    tokenise(Stream,T,Lno,[{')',Lno}|R]);
+tokenise(Stream, ","++T,Lno,R) ->
+    tokenise(Stream, T, Lno, [{',',Lno}|R]);
 
-tokenise(Stream,[$.,$.,$.|T],Lno,R) ->
-    tokenise(Stream,T,Lno,[{'...',Lno}|R]);
+tokenise(Stream, "("++T, Lno, R) ->
+    tokenise(Stream, T, Lno, [{'(',Lno}|R]);
+tokenise(Stream, ")"++T, Lno, R) ->
+    tokenise(Stream, T, Lno, [{')',Lno}|R]);
 
-tokenise(Stream,[$.,$.|T],Lno,R) ->
-    tokenise(Stream,T,Lno,[{'..',Lno}|R]);
+tokenise(Stream, "..."++T,Lno,R) ->
+    tokenise(Stream, T, Lno, [{'...',Lno}|R]);
+tokenise(Stream, ".."++T, Lno, R) ->
+    tokenise(Stream, T, Lno, [{'..',Lno}|R]);
+tokenise(Stream, "."++T, Lno, R) ->
+    tokenise(Stream, T, Lno, [{'.',Lno}|R]);
 
-tokenise(Stream,[$.|T],Lno,R) ->
-    tokenise(Stream,T,Lno,[{'.',Lno}|R]);
-tokenise(Stream,[$^|T],Lno,R) ->
-    tokenise(Stream,T,Lno,[{'^',Lno}|R]);
-tokenise(Stream,[$!|T],Lno,R) ->
-    tokenise(Stream,T,Lno,[{'!',Lno}|R]);
-tokenise(Stream,[$||T],Lno,R) ->
-    tokenise(Stream,T,Lno,[{'|',Lno}|R]);
+tokenise(Stream, "|"++T, Lno, R) ->
+    tokenise(Stream, T, Lno, [{'|',Lno}|R]);
 
-tokenise(Stream,[H|T],Lno,R) ->
-    case white_space(H) of
+tokenise(Stream, [H|T], Lno, R) when $A =< H , H =< $Z ->
+    {X,T1} = get_name(T, [H]),
+    case reserved_word(X) of
 	true ->
-	    tokenise(Stream,T,Lno,R);
+	    tokenise(Stream, T1, Lno, [{X,Lno}|R]);
 	false ->
-	    tokenise(Stream,T,Lno,[{list_to_atom([H]),Lno}|R])
+	    tokenise(Stream, T1, Lno, [{typereference,Lno,X}|R]);
+	rstrtype ->
+	    tokenise(Stream, T1, Lno, [{restrictedcharacterstringtype,Lno,X}|R])
     end;
-tokenise(_Stream,[],Lno,R) ->
-    {Lno,lists:reverse(R)}.
 
+tokenise(Stream, [H|T], Lno, R) when $a =< H , H =< $z ->
+    {X, T1} = get_name(T, [H]),
+    tokenise(Stream, T1, Lno, [{identifier,Lno,X}|R]);
 
-collect_string(L,Lno) ->
-    collect_string(L,Lno,[]).
+tokenise(Stream, [H|T], Lno, R) when $0 =< H , H =< $9 ->
+    {X, T1} = get_number(T, [H]),
+    tokenise(Stream, T1, Lno, [{number,Lno,list_to_integer(X)}|R]);
 
-collect_string([],_,_) ->
-    throw({'ERR','bad_quote found eof'});
+tokenise(Stream, [H|T], Lno, R) when H =< $\s ->
+    tokenise(Stream, T, Lno, R);
 
-collect_string([H|T],Lno,Str) ->
-    case H of
-	$" ->
-           {{cstring,1,lists:reverse(Str)},T};
-        Ch ->
-           collect_string(T,Lno,[Ch|Str])
-    end.
-           
+tokenise(Stream, [H|T], Lno, R) ->
+    tokenise(Stream, T, Lno, [{list_to_atom([H]),Lno}|R]);
+tokenise(_Stream, [], Lno, R) ->
+    {Lno+1,R}.
 
 
-% <name> is letters digits hyphens
-% hypen is not the last character. Hypen hyphen is NOT allowed
-%
-% <identifier> ::= <lowercase> <name>
+collect_string(L, Lno) ->
+    collect_string(L, Lno, []).
 
-get_name([$-,Char|T], L) ->
+collect_string([$"|T], _Lno, Str) ->
+    {{cstring,1,lists:reverse(Str)},T};
+collect_string([H|T], Lno, Str) ->
+    collect_string(T, Lno, [H|Str]);
+collect_string([], _, _) ->
+    throw({error,missing_quote_at_eof}).
+           
+%% <name> is letters digits hyphens.
+%% Hypen is not the last character. Hypen hyphen is NOT allowed.
+%%
+%% <identifier> ::= <lowercase> <name>
+
+get_name([$-,Char|T]=T0, Acc) ->
     case isalnum(Char) of
 	true ->
-	    get_name(T,[Char,$-|L]);
+	    get_name(T, [Char,$-|Acc]);
 	false ->
-	    {lists:reverse(L),[$-,Char|T]}
+	    {list_to_atom(lists:reverse(Acc)),T0}
     end;
-get_name([$-|T], L) ->
-    {lists:reverse(L),[$-|T]};
-get_name([Char|T], L) ->
+get_name([$-|_]=T, Acc) ->
+    {list_to_atom(lists:reverse(Acc)),T};
+get_name([Char|T]=T0, Acc) ->
     case isalnum(Char) of
 	true ->
-	    get_name(T,[Char|L]);
+	    get_name(T, [Char|Acc]);
 	false ->
-	    {lists:reverse(L),[Char|T]}
+	    {list_to_atom(lists:reverse(Acc)),T0}
     end;
-get_name([], L) ->
-    {lists:reverse(L), []}.
-
+get_name([], Acc) ->
+    {list_to_atom(lists:reverse(Acc)),[]}.
 	    
 isalnum(H) when $A =< H , H =< $Z ->
     true;
@@ -221,67 +207,54 @@ isdigit(H) when $0 =< H , H =< $9 ->
 isdigit(_) ->
     false.
 
-white_space(9) -> true;
-white_space(10) -> true;
-white_space(13) -> true;
-white_space(32) -> true;
-white_space(_) -> false.
-
-
-get_number([H|T], L) ->
+get_number([H|T]=T0, L) ->
     case isdigit(H) of
 	true ->
 	    get_number(T, [H|L]);
 	false ->
-	    {lists:reverse(L), [H|T]}
+	    {lists:reverse(L), T0}
     end;
 get_number([], L) ->
     {lists:reverse(L), []}.
 
-skip_comment([]) ->
-    [];
-skip_comment([$-,$-|T]) ->
-    T;
-skip_comment([_|T]) ->
-    skip_comment(T).
-
+skip_comment([]) -> [];
+skip_comment("--"++T) -> T;
+skip_comment([_|T]) -> skip_comment(T).
 
-skip_multiline_comment(Stream,[],Lno,Level) ->
-    case io:get_line(Stream,'') of
+skip_multiline_comment(Stream, [], Lno, Level) ->
+    case io:get_line(Stream, '') of
 	eof ->
-	    io:format("Tokeniser error on line: ~w~n"
-		      "premature end of multiline comment~n",[Lno]),
-	    exit(0);
+	    throw({error,eof_in_comment});
 	Line ->
-	    skip_multiline_comment(Stream,Line,Lno+1,Level)
+	    skip_multiline_comment(Stream, Line, Lno+1, Level)
     end;
-skip_multiline_comment(_Stream,[$*,$/|T],Lno,0) ->
+skip_multiline_comment(_Stream, "*/"++T, Lno, 0) ->
     {Lno,T};
-skip_multiline_comment(Stream,[$*,$/|T],Lno,Level) ->
-    skip_multiline_comment(Stream,T,Lno,Level - 1);
-skip_multiline_comment(Stream,[$/,$*|T],Lno,Level) ->
-    skip_multiline_comment(Stream,T,Lno,Level + 1);
-skip_multiline_comment(Stream,[_|T],Lno,Level) ->
-    skip_multiline_comment(Stream,T,Lno,Level).
-
-collect_quoted([$',$B|T],Lno, L) ->
+skip_multiline_comment(Stream, "*/"++T, Lno, Level) ->
+    skip_multiline_comment(Stream, T, Lno, Level - 1);
+skip_multiline_comment(Stream, "/*"++T, Lno, Level) ->
+    skip_multiline_comment(Stream, T, Lno, Level + 1);
+skip_multiline_comment(Stream, [_|T], Lno, Level) ->
+    skip_multiline_comment(Stream, T, Lno, Level).
+
+collect_quoted("'B"++T, Lno, L) ->
     case check_bin(L) of
         true ->
-            {{bstring,Lno, lists:reverse(L)}, T};
+            {{bstring,Lno,lists:reverse(L)}, T};
         false ->
-            throw({'ERR',{invalid_binary_number, lists:reverse(L)}})
+            throw({error,{invalid_binary_number,lists:reverse(L)}})
     end;
-collect_quoted([$',$H|T],Lno, L) ->
+collect_quoted("'H"++T, Lno, L) ->
     case check_hex(L) of
         true ->
-            {{hstring,Lno, lists:reverse(L)}, T};
+            {{hstring,Lno,lists:reverse(L)}, T};
         false ->
-            throw({'ERR',{invalid_binary_number, lists:reverse(L)}})
+            throw({error,{invalid_hex_number,lists:reverse(L)}})
     end;
 collect_quoted([H|T], Lno, L) ->
     collect_quoted(T, Lno,[H|L]);
 collect_quoted([], _, _) ->        % This should be allowed FIX later
-    throw({'ERR',{eol_in_token}}).
+    throw({error,eol_in_token}).
 
 check_bin([$0|T]) ->
     check_bin(T);
@@ -351,7 +324,6 @@ reserved_word('INCLUDES') -> true;
 reserved_word('INSTANCE') -> true;
 reserved_word('INTEGER') -> true;
 reserved_word('INTERSECTION') -> true;
-reserved_word('ISO646String') -> rstrtype;
 reserved_word('MAX') -> true;
 reserved_word('MIN') -> true;
 reserved_word('MINUS-INFINITY') -> true;
diff --git a/lib/asn1/src/asn1ct_value.erl b/lib/asn1/src/asn1ct_value.erl
index 221cd991a7..c5901d5489 100644
--- a/lib/asn1/src/asn1ct_value.erl
+++ b/lib/asn1/src/asn1ct_value.erl
@@ -352,8 +352,9 @@ random_unnamed_bit_string(M, C) ->
 %%     end.
 
 random(Upper) ->
-    {A1,A2,A3} = erlang:now(),
-    _ = random:seed(A1, A2, A3),
+    _ = random:seed(erlang:phash2([erlang:node()]),
+		    erlang:monotonic_time(),
+		    erlang:unique_integer()),
     random:uniform(Upper).
 
 size_random(C) ->
diff --git a/lib/asn1/test/Makefile b/lib/asn1/test/Makefile
index b1b08aa9f9..ea5a0f857e 100644
--- a/lib/asn1/test/Makefile
+++ b/lib/asn1/test/Makefile
@@ -78,6 +78,7 @@ MODULES= \
 	testEnumExt \
 	testInfObjectClass \
 	testInfObj \
+	testInfObjExtract \
 	testParameterizedInfObj \
 	testFragmented \
 	testMergeCompile \
@@ -104,14 +105,19 @@ MODULES= \
 	test_compile_options \
 	testDoubleEllipses \
 	test_modified_x420 \
-	testX420 \
 	test_x691 \
 	testWSParamClass \
+	testValueTest \
+	testUniqueObjectSets \
+	testRfcs \
+	testImporting \
+	testExtensibilityImplied \
 	asn1_test_lib \
 	asn1_app_test \
 	asn1_appup_test \
 	asn1_SUITE \
-	error_SUITE
+	error_SUITE \
+	syntax_SUITE
 
 ERL_FILES= $(MODULES:%=%.erl)
 
diff --git a/lib/asn1/test/asn1_SUITE.erl b/lib/asn1/test/asn1_SUITE.erl
index 432197eec0..9dfcc3f571 100644
--- a/lib/asn1/test/asn1_SUITE.erl
+++ b/lib/asn1/test/asn1_SUITE.erl
@@ -52,9 +52,7 @@ all() ->
 groups() ->
     Parallel = asn1_test_lib:parallel(),
     [{compile, Parallel,
-      [c_syntax,
-       c_string,
-       c_implicit_before_choice,
+      [c_string,
        constraint_equivalence]},
 
      {ber, Parallel,
@@ -89,6 +87,7 @@ groups() ->
                     ber_other,
 		    der,
                     h323test]},
+       testExtensibilityImplied,
        testChoPrim,
        testChoExtension,
        testChoOptional,
@@ -135,19 +134,19 @@ groups() ->
        testChoiceIndefinite,
        per_open_type,
        testInfObjectClass,
+       testUniqueObjectSets,
+       testInfObjExtract,
        testParam,
        testFragmented,
        testMergeCompile,
        testobj,
        testDeepTConstr,
-       testExport,
        testImport,
        testDER,
        testDEFAULT,
        testMvrasn6,
        testContextSwitchingTypes,
        testOpenTypeImplicitTag,
-       duplicate_tags,
        testROSE,
        testINSTANCE_OF,
        testTCAP,
@@ -158,16 +157,19 @@ groups() ->
        testNortel,
        % Uses 'PKCS7', 'InformationFramework'
        {group, [], [test_WS_ParamClass,
-		    test_modified_x420,
-                    testX420]},
-       testTcapsystem,
-       testNBAPsystem,
-       testS1AP,
+		    test_modified_x420]},
+       %% Don't run all these at the same time.
+       {group, [],
+	[testTcapsystem,
+	 testNBAPsystem,
+	 testS1AP,
+	 testRfcs]},
        test_compile_options,
        testDoubleEllipses,
        test_x691,
        ticket_6143,
-       test_OTP_9688]},
+       test_OTP_9688,
+       testValueTest]},
 
      {performance, [],
       [testTimer_ber,
@@ -196,7 +198,7 @@ init_per_testcase(Func, Config) ->
     true = code:add_patha(CaseDir),
 
     Dog = case Func of
-              testX420 -> ct:timetrap({minutes, 90});
+              testRfcs -> ct:timetrap({minutes, 90});
               _        -> ct:timetrap({minutes, 60})
           end,
     [{case_dir, CaseDir}, {watchdog, Dog}|Config].
@@ -374,6 +376,12 @@ testExternal(Config, Rule, Opts) ->
     testSetOfTag:main(Rule),
     testSetTag:main(Rule).
 
+testExtensibilityImplied(Config) ->
+    test(Config, fun testExtensibilityImplied/3).
+testExtensibilityImplied(Config, Rule, Opts) ->
+    asn1_test_lib:compile("ExtensibilityImplied", Config,
+			  [Rule,no_ok_wrapper|Opts]),
+    testExtensibilityImplied:main().
 
 testChoPrim(Config) -> test(Config, fun testChoPrim/3).
 testChoPrim(Config, Rule, Opts) ->
@@ -561,39 +569,21 @@ testSetOfCho(Config, Rule, Opts) ->
     asn1_test_lib:compile("SetOfCho", Config, [Rule|Opts]),
     testSetOfCho:main(Rule).
 
-c_syntax(Config) ->
-    DataDir = ?config(data_dir, Config),
-    [{error, _} = asn1ct:compile(filename:join(DataDir, F))
-     || F <-["Syntax",
-             "BadTypeEnding",
-             "BadValueAssignment1",
-             "BadValueAssignment2",
-             "BadValueSet",
-             "ChoiceBadExtension",
-             "EnumerationBadExtension",
-             "Example",
-             "Export1",
-             "MissingEnd",
-             "SequenceBadComma",
-             "SequenceBadComponentName",
-             "SequenceBadComponentType",
-             "SeqBadComma"]].
-
 c_string(Config) ->
     test(Config, fun c_string/3).
 c_string(Config, Rule, Opts) ->
     asn1_test_lib:compile("String", Config, [Rule|Opts]),
     asn1ct:test('String').
 
-c_implicit_before_choice(Config) ->
-    test(Config, fun c_implicit_before_choice/3, [ber]).
-c_implicit_before_choice(Config, Rule, Opts) ->
-    DataDir = ?config(data_dir, Config),
-    CaseDir = ?config(case_dir, Config),
-    {error, _R2} = asn1ct:compile(filename:join(DataDir, "CCSNARG3"),
-                                  [Rule, {outdir, CaseDir}|Opts]).
-
 constraint_equivalence(Config) ->
+    constraint_equivalence_abs(Config),
+    test(Config, fun constraint_equivalence/3).
+
+constraint_equivalence(Config, Rule, Opts) ->
+    M = 'ConstraintEquivalence',
+    asn1_test_lib:compile(M, Config, [Rule|Opts]).
+
+constraint_equivalence_abs(Config) ->
     DataDir = ?config(data_dir, Config),
     CaseDir = ?config(case_dir, Config),
     Asn1Spec = "ConstraintEquivalence",
@@ -765,6 +755,16 @@ testInfObjectClass(Config, Rule, Opts) ->
     testInfObjectClass:main(Rule),
     testInfObj:main(Rule).
 
+testUniqueObjectSets(Config) -> test(Config, fun testUniqueObjectSets/3).
+testUniqueObjectSets(Config, Rule, Opts) ->
+    CaseDir = ?config(case_dir, Config),
+    testUniqueObjectSets:main(CaseDir, Rule, Opts).
+
+testInfObjExtract(Config) -> test(Config, fun testInfObjExtract/3).
+testInfObjExtract(Config, Rule, Opts) ->
+    asn1_test_lib:compile("InfObjExtract", Config, [Rule|Opts]),
+    testInfObjExtract:main().
+
 testParam(Config) ->
     test(Config, fun testParam/3, [ber,{ber,[der]},per,uper]).
 testParam(Config, Rule, Opts) ->
@@ -804,18 +804,14 @@ testDeepTConstr(Config, Rule, Opts) ->
                               [Rule|Opts]),
     testDeepTConstr:main(Rule).
 
-testExport(Config) ->
-    {error, _} =
-	asn1ct:compile(filename:join(?config(data_dir, Config),
-				     "IllegalExport"),
-		       [{outdir, ?config(case_dir, Config)}]).
-
 testImport(Config) ->
     test(Config, fun testImport/3).
 testImport(Config, Rule, Opts) ->
-    Files = ["ImportsFrom","ImportsFrom2","ImportsFrom3"],
+    Files = ["ImportsFrom","ImportsFrom2","ImportsFrom3",
+	     "Importing","Exporting"],
     asn1_test_lib:compile_all(Files, Config, [Rule|Opts]),
     42 = 'ImportsFrom':i(),
+    testImporting:main(),
     ok.
 
 testMegaco(Config) -> test(Config, fun testMegaco/3).
@@ -839,24 +835,20 @@ testContextSwitchingTypes(Config, Rule, Opts) ->
 
 testTypeValueNotation(Config) -> test(Config, fun testTypeValueNotation/3).
 testTypeValueNotation(Config, Rule, Opts) ->
-    asn1_test_lib:compile_all(["SeqTypeRefPrim", "ValueTest"], Config,
-                              [Rule|Opts]),
+    asn1_test_lib:compile("SeqTypeRefPrim", Config, [Rule|Opts]),
     testTypeValueNotation:main(Rule, Opts).
 
+testValueTest(Config) -> test(Config, fun testValueTest/3).
+testValueTest(Config, Rule, Opts) ->
+    asn1_test_lib:compile("ValueTest", Config, [Rule|Opts]),
+    testValueTest:main().
+
 testOpenTypeImplicitTag(Config) ->
     test(Config, fun testOpenTypeImplicitTag/3).
 testOpenTypeImplicitTag(Config, Rule, Opts) ->
     asn1_test_lib:compile("OpenTypeImplicitTag", Config, [Rule|Opts]),
     testOpenTypeImplicitTag:main(Rule).
 
-duplicate_tags(Config) ->
-    DataDir = ?config(data_dir, Config),
-    CaseDir = ?config(case_dir, Config),
-    {error, [{error, {type, _, _, 'SeqOpt1Imp',
-			     {asn1, {duplicates_of_the_tags, _}}}}]} =
-	asn1ct:compile(filename:join(DataDir, "SeqOptional2"),
-		       [abs, {outdir, CaseDir}]).
-
 rtUI(Config) -> test(Config, fun rtUI/3).
 rtUI(Config, Rule, Opts) ->
     asn1_test_lib:compile("Prim", Config, [Rule|Opts]),
@@ -990,13 +982,22 @@ testS1AP(Config, Rule, Opts) ->
 	    ok
     end.
 
+testRfcs(Config) ->  test(Config, fun testRfcs/3, [{ber,[der]}]).
+testRfcs(Config, Rule, Opts) ->
+    case erlang:system_info(system_architecture) of
+	"sparc-sun-solaris2.10" ->
+	    {skip,"Too slow for an old Sparc"};
+	_ ->
+	    testRfcs:compile(Config, Rule, Opts),
+	    testRfcs:test()
+    end.
+
 test_compile_options(Config) ->
     ok = test_compile_options:wrong_path(Config),
     ok = test_compile_options:path(Config),
     ok = test_compile_options:noobj(Config),
     ok = test_compile_options:record_name_prefix(Config),
-    ok = test_compile_options:verbose(Config),
-    ok = test_compile_options:warnings_as_errors(Config).
+    ok = test_compile_options:verbose(Config).
 
 testDoubleEllipses(Config) -> test(Config, fun testDoubleEllipses/3).
 testDoubleEllipses(Config, Rule, Opts) ->
@@ -1084,6 +1085,7 @@ test_modules() ->
      "CommonDataTypes",
      "Constraints",
      "ContextSwitchingTypes",
+     "CoverParser",
      "DS-EquipmentUser-CommonFunctionOrig-TransmissionPath",
      "Enum",
      "From",
@@ -1118,7 +1120,9 @@ test_modules() ->
      "Def",
      "Opt",
      "ELDAPv3",
-     "LDAP"].
+     "LDAP",
+     "SeqOptional2",
+     "CCSNARG3"].
 
 test_OTP_9688(Config) ->
     PrivDir = ?config(case_dir, Config),
diff --git a/lib/asn1/test/asn1_SUITE_data/BadTypeEnding.asn b/lib/asn1/test/asn1_SUITE_data/BadTypeEnding.asn
deleted file mode 100644
index 3ccd838ac0..0000000000
--- a/lib/asn1/test/asn1_SUITE_data/BadTypeEnding.asn
+++ /dev/null
@@ -1,6 +0,0 @@
-BadTypeEnding  DEFINITIONS ::=
-BEGIN
-
-T ::= Typ;
-
-END
diff --git a/lib/asn1/test/asn1_SUITE_data/BadValueAssignment1.asn1 b/lib/asn1/test/asn1_SUITE_data/BadValueAssignment1.asn1
deleted file mode 100644
index a5d4984e60..0000000000
--- a/lib/asn1/test/asn1_SUITE_data/BadValueAssignment1.asn1
+++ /dev/null
@@ -1,8 +0,0 @@
-BadValueAssignment1  DEFINITIONS ::=
-BEGIN
-
-int INTEGER ::= 3
-
-int2 integer ::= 3
-
-END
diff --git a/lib/asn1/test/asn1_SUITE_data/BadValueAssignment2.asn1 b/lib/asn1/test/asn1_SUITE_data/BadValueAssignment2.asn1
deleted file mode 100644
index 7a96406001..0000000000
--- a/lib/asn1/test/asn1_SUITE_data/BadValueAssignment2.asn1
+++ /dev/null
@@ -1,8 +0,0 @@
-BadValueAssignment2  DEFINITIONS ::=
-BEGIN
-
-int INTEGER ::= 3
-
-int2 ::= 3
-
-END
diff --git a/lib/asn1/test/asn1_SUITE_data/BadValueSet.asn1 b/lib/asn1/test/asn1_SUITE_data/BadValueSet.asn1
deleted file mode 100644
index 68bd4380b7..0000000000
--- a/lib/asn1/test/asn1_SUITE_data/BadValueSet.asn1
+++ /dev/null
@@ -1,9 +0,0 @@
-BadValueSet  DEFINITIONS ::=
-BEGIN
-
-Int INTEGER ::= {1|2|3}
-
-Int2 INTEGER ::= {
-    1,2,3}
-
-END
diff --git a/lib/asn1/test/asn1_SUITE_data/CCSNARG3.asn b/lib/asn1/test/asn1_SUITE_data/CCSNARG3.asn
index 23c1f32ceb..8932238adc 100644
--- a/lib/asn1/test/asn1_SUITE_data/CCSNARG3.asn
+++ b/lib/asn1/test/asn1_SUITE_data/CCSNARG3.asn
@@ -3,7 +3,7 @@ BEGIN
 
 CallCentreServiceNotificationArg ::= SEQUENCE {
    scriptInformation      [0] ScriptToScriptInformation,
-   eventInformation       [1] IMPLICIT EventInformation OPTIONAL
+   eventInformation       [1] EventInformation OPTIONAL
     
    
 }
diff --git a/lib/asn1/test/asn1_SUITE_data/ChoExtension.asn1 b/lib/asn1/test/asn1_SUITE_data/ChoExtension.asn1
index f6fe18be10..18473bae30 100644
--- a/lib/asn1/test/asn1_SUITE_data/ChoExtension.asn1
+++ b/lib/asn1/test/asn1_SUITE_data/ChoExtension.asn1
@@ -41,10 +41,4 @@ ChoExt4 ::= CHOICE
   str OCTET STRING
 }
 
-ChoEmptyRoot ::= CHOICE {
-  ...,
-  bool BOOLEAN,
-  int INTEGER (0..7)
-}
-
 END
diff --git a/lib/asn1/test/asn1_SUITE_data/ChoiceBadExtension.asn1 b/lib/asn1/test/asn1_SUITE_data/ChoiceBadExtension.asn1
deleted file mode 100644
index d0789d7414..0000000000
--- a/lib/asn1/test/asn1_SUITE_data/ChoiceBadExtension.asn1
+++ /dev/null
@@ -1,27 +0,0 @@
-ChoiceBadExtension DEFINITIONS ::=
-BEGIN
-
-Seq ::= SEQUENCE {
-    ...,
-    name PrintableString,
-    location INTEGER {home(0),field(1),roving(2)},
-    age INTEGER 
-    }
-
-Cho1 ::= CHOICE {
-    name PrintableString,
-    ...,
-    location INTEGER {home(0),field(1),roving(2)},
-    age INTEGER 
-    }
-
-Cho2 ::= CHOICE {
-    ...,
-    name PrintableString,
-    location INTEGER {home(0),field(1),roving(2)},
-    age INTEGER 
-    }
-
-END
-
-
diff --git a/lib/asn1/test/asn1_SUITE_data/ConstraintEquivalence.asn1 b/lib/asn1/test/asn1_SUITE_data/ConstraintEquivalence.asn1
index 8b3d151502..648275dd66 100644
--- a/lib/asn1/test/asn1_SUITE_data/ConstraintEquivalence.asn1
+++ b/lib/asn1/test/asn1_SUITE_data/ConstraintEquivalence.asn1
@@ -11,6 +11,10 @@ BEGIN
  SingleValueX8 ::= INTEGER (integer42)
  SingleValueX9 ::= INTEGER (integer42..integer42)
  SingleValueX10 ::= INTEGER ((integer42) INTERSECTION (40..49))
+ SingleValueX11 ::= INTEGER (40..49) (integer42)
+ SingleValueX12 ::= INTEGER ((MIN..0) ^ (1..10) | integer42)
+ SingleValueX13 ::= INTEGER ((11..20) ^ (1..10) | integer42)
+ SingleValueX14 ::= INTEGER ((MIN..42) ^ (1..100) ^ (42..50))
 
  UnconstrainedX0 ::= INTEGER
  UnconstrainedX1 ::= INTEGER (MIN..MAX)
@@ -19,6 +23,10 @@ BEGIN
  UnconstrainedX4 ::= INTEGER ((MIN..MAX)|9|10)
  UnconstrainedX5 ::= INTEGER ((MIN..MAX)|10..20)
  UnconstrainedX6 ::= INTEGER ((MIN..MAX) UNION (10..20))
+ UnconstrainedX7 ::= INTEGER ((MIN..MAX) ^ ((MIN..MAX) UNION (10..20)))
+ UnconstrainedX8 ::= INTEGER ((-100..MAX) ^ (42..MAX) | (MIN..41))
+ UnconstrainedX9 ::= INTEGER (UnconstrainedX0)
+ UnconstrainedX10 ::= INTEGER (UnconstrainedX0)(MIN..MAX)
 
  RangeX00 ::= INTEGER (5..10)
  RangeX01 ::= INTEGER (4<..<11)
@@ -38,22 +46,66 @@ BEGIN
  RangeX16 ::= INTEGER ((5|6) UNION (7) UNION (7<..<11))
 
  RangeX20 ::= INTEGER (0..20) (5..10)
- RangeX21 ::= INTEGER (0..10) (5..20)
- RangeX22 ::= INTEGER (0..10) (5..20) (MIN..MAX)
- RangeX23 ::= INTEGER ((0..10) INTERSECTION (5..20) ^ (MIN..MAX))
- RangeX24 ::= INTEGER ((5|6|7|8|9|10) INTERSECTION (5..20) ^ (MIN..MAX))
+ RangeX21 ::= INTEGER ((0..10) ^ (5..20))
+ RangeX22 ::= INTEGER ((0..10) ^ (5..20) ^ (MIN..MAX))
+ RangeX23 ::= INTEGER (MIN..MAX) (-100..20) (5..10)
+ RangeX24 ::= INTEGER (MIN..MAX) (0..100) (5..20) (5..10)
+ RangeX25 ::= INTEGER ((0..10) INTERSECTION (5..20) ^ (MIN..MAX))
+ RangeX26 ::= INTEGER ((5|6|7|8|9|10) INTERSECTION (5..20) ^ (MIN..MAX))
+
+ RangeX30 ::= INTEGER (((5|6) | (5..20)) ^ (0..10))
+ RangeX31 ::= INTEGER (((((5|6) | (5..20)) ^ (0..10))) ^ (MIN..MAX))
+ RangeX32 ::= INTEGER ((5|7) | (5..10))
+
+ Semi00 ::= INTEGER (0..MAX)
+ Semi01 ::= INTEGER (0..MAX) (MIN..MAX)
+ Semi02 ::= INTEGER ((0..100) UNION (200..MAX) UNION (50..1024))
+
+ RangeExtX00 ::= INTEGER (5..10, ...)
+ RangeExtX01 ::= INTEGER (0..20) (5..10, ...)
+ RangeExtX02 ::= INTEGER (RangeX26) (5..10, ...)
+-- RangeExtX03 ::= RangeX26 (5..10, ...)
+
+ MinRangeX00 ::= INTEGER (MIN..10)
+ MinRangeX01 ::= INTEGER ((MIN..0) | (0..10))
+ MinRangeX02 ::= INTEGER (MIN..MAX) (MIN..100) (MIN..10)
+ MinRangeX03 ::= INTEGER (((MIN..-100)|(-60..-50)) | (MIN..10))
+
+ DisjointRangeX00 ::= INTEGER (0..5 UNION 95..99)
+ DisjointRangeX01 ::= INTEGER (0|1|2|3|4|5|95|96|97|98|99)
+ DisjointRangeX02 ::= INTEGER (0..100) (0..2 UNION 95..99 UNION 3|4|5)
+ DisjointRangeX03 ::= INTEGER (MIN..MAX) (0..2 UNION 95..99 UNION 3|4|5)
+
+ MinDisjointRangeX00 ::= INTEGER (MIN..-100 UNION 100..1000)
+ MinDisjointRangeX01 ::= INTEGER (MIN..-100 UNION 100..1000 UNION (MIN..-100))
+ MinDisjointRangeX02 ::= INTEGER (MIN..-50000 UNION 100..1000 UNION (MIN..-100))
+ MinDisjointRangeX03 ::= INTEGER (MIN..-100 UNION 100..1000 UNION (MIN..-1000000))
+ MinDisjointRangeX04 ::= INTEGER (MIN..-100 UNION 100..1000 UNION (MIN..-1000000))
+ MinDisjointRangeX05 ::= INTEGER (MIN..-100 ^ (MIN..-100) UNION 100..1000)
+ MinDisjointRangeX06 ::= INTEGER (MIN..-100 ^ (MIN..0) UNION 100..1000)
 
  UnconstrainedStringX00 ::= IA5String
  UnconstrainedStringX01 ::= IA5String (SIZE (0..MAX))
+ UnconstrainedStringX02 ::= IA5String (SIZE (0..42|43..MAX))
 
  ConstrainedStringX00 ::= IA5String (SIZE (0..5))
  ConstrainedStringX01 ::= IA5String (SIZE (0|1|2|3|4|5))
 
+ StringExtFromX00 ::= IA5String (FROM ("AB", ..., "CD"))(SIZE (1..10, ..., 15..20))
+ StringExtFromX01 ::= IA5String (FROM ("AB", ..., "CD"))(SIZE (1..10, ..., 15..20))
+ StringExtFromX02 ::= IA5String ((FROM ("AB", ..., "CD")) ^ ((SIZE (1..10, ..., 15..20))))
+ StringExtFromX03 ::= IA5String ((FROM ("AB", ..., "CD")) ^ (SIZE (1..10, ..., 15..20)))
+ StringExtFromX04 ::= IA5String (StringExtFromX00)
+
  -- Note: None of the back-ends care about the exact values
  -- outside of the root range.
  ExtConstrainedStringX00 ::= IA5String (SIZE (1..2, ...))
  ExtConstrainedStringX01 ::= IA5String (SIZE (1|2, ..., 3))
  ExtConstrainedStringX02 ::= IA5String (SIZE (1|2, ..., 3|4|5))
+ ExtConstrainedStringX03 ::= IA5String (SIZE (1|2, ...,  1|2|3|4|5))
+ ExtConstrainedStringX04 ::= IA5String (SIZE (1|2), ..., SIZE (1|2|3|4|5))
+ ExtConstrainedStringX05 ::= IA5String (SIZE (1|2, ...), ...,
+                                        SIZE (1|2|3|4|5, ...))
 
  integer4 INTEGER ::= 4
  integer11 INTEGER ::= 11
diff --git a/lib/asn1/test/asn1_SUITE_data/Constraints.py b/lib/asn1/test/asn1_SUITE_data/Constraints.py
index 3495cd841b..a40c513141 100644
--- a/lib/asn1/test/asn1_SUITE_data/Constraints.py
+++ b/lib/asn1/test/asn1_SUITE_data/Constraints.py
@@ -81,7 +81,7 @@ maxNrOfCellPortionsPerCell-1 INTEGER ::= 35
 CellPortionID	::= INTEGER (0..maxNrOfCellPortionsPerCell-1,...)
 
 -- OTP-6763
-T ::=  IA5String (SIZE (1|2, ..., SIZE (1|2|3))) -- Dubuisson 268
+T ::=  IA5String (SIZE (1|2), ..., SIZE (1|2|3)) -- Dubuisson 268
 T2 ::= IA5String (SIZE (1|2, ..., 3)) -- equal with T
 
 -- OTP-8046
@@ -144,5 +144,47 @@ NonOverlapping ::= INTEGER (7280..7560 |
 23000..24000 |
 24960..26900)
 
+--
+-- Test INTEGER constraints from fields in objects.
+--
+
+INT-HOLDER ::= CLASS {
+  &id INTEGER UNIQUE,
+  &obj INT-HOLDER OPTIONAL
+} WITH SYNTAX {
+  ID &id
+  [OBJ &obj]
+}
+
+int-holder-1 INT-HOLDER ::= { ID 2 }
+int-holder-2 INT-HOLDER ::= { ID 4 OBJ int-holder-1 }
+
+IntObjectConstr ::= INTEGER (int-holder-2.&obj.&id..int-holder-2.&id)
+
+--
+-- INTEGER constraints defined using named INTEGERs.
+--
+
+ConstrainedNamedInt ::= INTEGER {v1(42)} (v1)
+constrainedNamedInt-1 INTEGER {v1(42)} (v1) ::= 42
+constrainedNamedInt-2 ConstrainedNamedInt ::= 100
+
+SeqWithNamedInt ::= SEQUENCE {
+   int INTEGER {v2(7)} (v2)
+}
+
+--
+-- Cover simpletable constraint checking code.
+--
+
+ContentInfo ::= SEQUENCE {
+  contentType ContentType
+}
+
+Contents TYPE-IDENTIFIER ::= {
+  {OCTET STRING IDENTIFIED BY {2 1 1 1 1 1 1}}
+}
+
+ContentType ::= TYPE-IDENTIFIER.&id({Contents})
 
 END
diff --git a/lib/asn1/test/asn1_SUITE_data/CoverParser.asn1 b/lib/asn1/test/asn1_SUITE_data/CoverParser.asn1
new file mode 100644
index 0000000000..75d40188ca
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/CoverParser.asn1
@@ -0,0 +1,57 @@
+CoverParser DEFINITIONS AUTOMATIC TAGS ::=
+BEGIN
+
+ Cho1 ::= CHOICE {
+   i INTEGER,
+   ... ! 42,
+   [[ b BOOLEAN ]]
+ }
+
+ Cho2 ::= CHOICE {
+   i INTEGER,
+   ...,
+   [[ b BOOLEAN,
+      s IA5String ]],
+   ...
+ }
+
+ Int1 ::= INTEGER (CONSTRAINED BY {INTEGER:1,INTEGER:2})
+
+ Seq1 ::= SEQUENCE {
+   ... ! INTEGER:1
+ }
+
+ Seq2 ::= SEQUENCE {
+   ... ! INTEGER:1,
+   i INTEGER
+ }
+
+ Seq3 ::= SEQUENCE {
+   b BOOLEAN,
+   ... ! INTEGER:1,
+   i INTEGER
+ }
+
+ Seq4 ::= SEQUENCE {
+   a INTEGER OPTIONAL,
+   b OCTET STRING OPTIONAL
+ } (WITH COMPONENTS {a ABSENT, b OPTIONAL} |
+    WITH COMPONENTS {a PRESENT, b PRESENT})
+
+ SeqOf1 ::= SEQUENCE OF INTEGER
+ SeqOf2 ::= SeqOf1 (WITH COMPONENT (0..7))
+
+ SegOf3 ::= SEQUENCE (SIZE (1..10)) OF id INTEGER
+
+ Set1 ::= SET {
+   ... ! INTEGER:1
+ }
+
+ Set2 ::= SET {
+   ... ! INTEGER:1,
+   a INTEGER
+ }
+
+ SetOf3 ::= SET (SIZE (1..10)) OF id INTEGER
+
+END
diff --git a/lib/asn1/test/asn1_SUITE_data/EnumExt.asn1 b/lib/asn1/test/asn1_SUITE_data/EnumExt.asn1
index 74fa97e7aa..55ad5a01a1 100644
--- a/lib/asn1/test/asn1_SUITE_data/EnumExt.asn1
+++ b/lib/asn1/test/asn1_SUITE_data/EnumExt.asn1
@@ -53,5 +53,7 @@ SeqBig ::= SEQUENCE {
   i INTEGER
 }
 
+EnumSkip ::= ENUMERATED {a(2), ..., b, c, d, e, f}
+
 END
 
diff --git a/lib/asn1/test/asn1_SUITE_data/Example.asn1 b/lib/asn1/test/asn1_SUITE_data/Example.asn1
deleted file mode 100644
index 2639f63940..0000000000
--- a/lib/asn1/test/asn1_SUITE_data/Example.asn1
+++ /dev/null
@@ -1,20 +0,0 @@
-Example  DEFINITIONS ::=
-BEGIN
-
-T ::= Typ
-
-Typ ::= SEQUENCE {
-    a b,
-    c Typ}
---ECLASS ::= CLASS {
---    &num       INTEGER UNIQUE,
---    &Typo
---    } WITH SYNTAX {
---    &Typo DETERMINED BY &num
---    }
-
---v1 ECLASS ::= {INTEGER DETERMINED BY 12}
-
---v2 INTEGER ::= 13
-
-END
diff --git a/lib/asn1/test/asn1_SUITE_data/Export1.asn b/lib/asn1/test/asn1_SUITE_data/Export1.asn
deleted file mode 100644
index 78ead8f4d2..0000000000
--- a/lib/asn1/test/asn1_SUITE_data/Export1.asn
+++ /dev/null
@@ -1,7 +0,0 @@
-Export1  DEFINITIONS ::=
-BEGIN
-EXPORTS T
-
-T ::= Typ	
-
-END
diff --git a/lib/asn1/test/asn1_SUITE_data/Exporting.asn1 b/lib/asn1/test/asn1_SUITE_data/Exporting.asn1
new file mode 100644
index 0000000000..e4f32f6788
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/Exporting.asn1
@@ -0,0 +1,18 @@
+Exporting DEFINITIONS AUTOMATIC TAGS ::=
+BEGIN
+
+  Seq ::= SEQUENCE { id INTEGER, f BOOLEAN }
+  PtSeq{T} ::= SEQUENCE { a T }
+
+  CL ::= CLASS {
+     &id INTEGER UNIQUE,
+     &Type
+  } WITH SYNTAX {
+     ID &id TYPE &Type
+  }
+
+  obj CL ::= { ID 1 TYPE OCTET STRING }
+
+  pt-object{CL:ob} CL ::= {ID ob.&id TYPE OCTET STRING}
+
+END
diff --git a/lib/asn1/test/asn1_SUITE_data/ExtensibilityImplied.asn1 b/lib/asn1/test/asn1_SUITE_data/ExtensibilityImplied.asn1
new file mode 100644
index 0000000000..d59b0edda5
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/ExtensibilityImplied.asn1
@@ -0,0 +1,30 @@
+ExtensibilityImplied DEFINITIONS
+AUTOMATIC TAGS
+EXTENSIBILITY IMPLIED
+::=
+BEGIN
+
+Enum1 ::= ENUMERATED { root, ..., ext }
+Enum2 ::= ENUMERATED { root }
+
+Seq1 ::= SEQUENCE {
+  b BOOLEAN,
+  ...,
+  i INTEGER
+}
+
+Seq2 ::= SEQUENCE {
+  b BOOLEAN
+}
+
+Set1 ::= SET {
+  b BOOLEAN,
+  ...,
+  i INTEGER
+}
+
+Set2 ::= SET {
+  b BOOLEAN
+}
+
+END
diff --git a/lib/asn1/test/asn1_SUITE_data/IllegalExport.asn1 b/lib/asn1/test/asn1_SUITE_data/IllegalExport.asn1
deleted file mode 100644
index 1b5e42ad3c..0000000000
--- a/lib/asn1/test/asn1_SUITE_data/IllegalExport.asn1
+++ /dev/null
@@ -1,7 +0,0 @@
-IllegalExport  DEFINITIONS ::=
-BEGIN
-EXPORTS T, KalleAnka;
-
-T ::= INTEGER	
-
-END
diff --git a/lib/asn1/test/asn1_SUITE_data/Importing.asn1 b/lib/asn1/test/asn1_SUITE_data/Importing.asn1
new file mode 100644
index 0000000000..2f2699c576
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/Importing.asn1
@@ -0,0 +1,20 @@
+Importing DEFINITIONS AUTOMATIC TAGS ::=
+BEGIN
+
+ Seq ::= Exporting.PtSeq{ INTEGER(0..7) }
+ OtherSeq ::= Exporting.Seq
+
+ seq Exporting.Seq ::= { id 42, f TRUE }
+
+ o1 Exporting.CL ::= { ID 2 TYPE INTEGER (0..63) }
+
+ ObjSet Exporting.CL ::= { o1 | Exporting.obj }
+
+ ObjSeq ::= SEQUENCE {
+   id Exporting.CL.&id ({ObjSet}),
+   type Exporting.CL.&Type ({ObjSet}{@id})
+ }
+
+ o1-cloned Exporting.CL ::= Exporting.pt-object{o1}
+
+END
diff --git a/lib/asn1/test/asn1_SUITE_data/InfObj.asn b/lib/asn1/test/asn1_SUITE_data/InfObj.asn
index 719119f418..3b88770d78 100644
--- a/lib/asn1/test/asn1_SUITE_data/InfObj.asn
+++ b/lib/asn1/test/asn1_SUITE_data/InfObj.asn
@@ -206,7 +206,9 @@ ConstructedDefaultSet CONSTRUCTED-DEFAULT ::= {
   { &id 4, &Type SET { a INTEGER, b BIT STRING } } |
   { &id 5, &Type CHOICE { i INTEGER, b BIT STRING } } |
   { &id 6, &Type SEQUENCE OF INTEGER (1..16) } |
-  { &id 7, &Type SET OF INTEGER (1..64) }
+  { &id 7, &Type SET OF INTEGER (1..64) } |
+  { &id 8, &Type SEQUENCE OF SEQUENCE { x INTEGER, y INTEGER } } |
+  { &id 9, &Type SET OF SEQUENCE { x INTEGER, y INTEGER } }
 }
 
 ConstructedPdu ::= SEQUENCE {
@@ -288,18 +290,196 @@ OstSeq1234 ::= ObjectSetTest{ {Ost1234} }
 OstSeq45 ::= ObjectSetTest{ {Ost45} }
 OstSeq12345 ::= ObjectSetTest{ {Ost12345} }
 
+OstSeq12Except ::= ObjectSetTest{ {Ost123 EXCEPT ost3} }
+OstSeq123Except ::= ObjectSetTest{ {Ost12345 EXCEPT Ost45} }
+
+ExOst1    OBJECT-SET-TEST ::= { ost1, ... }
 ExOst12    OBJECT-SET-TEST ::= { ost1, ..., ost2 }
 ExOst123   OBJECT-SET-TEST ::= { ost3, ..., ExOst12 }
---ExOst1234  OBJECT-SET-TEST ::= { ExOst123, ..., ost4 }
+ExOst1234  OBJECT-SET-TEST ::= { ExOst123, ..., ost4 }
 ExOst45    OBJECT-SET-TEST ::= { ost4, ..., ost5 }
 ExOst12345 OBJECT-SET-TEST ::= { ExOst123, ..., ExOst45 }
 
+ExOstSeq1 ::= ObjectSetTest{ {ExOst1} }
 ExOstSeq12 ::= ObjectSetTest{ {ExOst12} }
 ExOstSeq123 ::= ObjectSetTest{ {ExOst123} }
---ExOstSeq1234 ::= ObjectSetTest{ {ExOst1234} }
+ExOstSeq1234 ::= ObjectSetTest{ {ExOst1234} }
 ExOstSeq45 ::= ObjectSetTest{ {ExOst45} }
 ExOstSeq12345 ::= ObjectSetTest{ {ExOst12345} }
 
-END
+ExOstSeq12Except ::= ObjectSetTest{ {ExOst123 EXCEPT ost3} }
+ExOstSeq123Except ::= ObjectSetTest{ {ExOst12345 EXCEPT ExOst45} }
+
+ExInlOst1    OBJECT-SET-TEST ::= {
+    { 1 IS BIT STRING },
+    ...
+}
+ExInlOst12   OBJECT-SET-TEST ::= {
+    { 1 IS BIT STRING },
+    ...,
+    { 2 IS OCTET STRING }
+}
+
+ExInlOstSeq1 ::= ObjectSetTest{ {ExInlOst1} }
+ExInlOstSeq12 ::= ObjectSetTest{ {ExInlOst12} }
+
+--
+-- Test that extensions in a simple class works.
+--
+
+ExtClassSeq ::= SEQUENCE {
+  arg      EXT-CLASS.&id({Extend})
+}
+
+EXT-CLASS ::= CLASS {
+    &id INTEGER UNIQUE
+} WITH SYNTAX {
+    ID &id
+}
+
+Extend EXT-CLASS ::= { { ID alt1 } | { ID alt2 }, ... }
+
+alt1 INTEGER ::= 4
+alt2 INTEGER ::= 5
+
+
+--
+-- Test a BIT STRING which is optional in the simplified syntax.
+--
+
+PUBLIC-KEY ::= CLASS {
+    &id             INTEGER UNIQUE,
+    &keyUsage       KeyUsage OPTIONAL
+} WITH SYNTAX {
+    IDENTIFIER &id
+    [OPTIONAL-BIT-STRING &keyUsage]
+}
+
+KeyUsage ::= BIT STRING {
+     digitalSignature        (0),
+     nonRepudiation          (1),
+     keyEncipherment         (2)
+ }
+
+object-with-optional-bit-string PUBLIC-KEY ::= {
+ IDENTIFIER 42
+ OPTIONAL-BIT-STRING {digitalSignature, nonRepudiation, keyEncipherment}
+}
+
+-- Test object identifiers from objects.
+
+CONTAINER ::= CLASS {
+ &id   OBJECT IDENTIFIER UNIQUE,
+ &rid  RELATIVE-OID OPTIONAL,
+ &Type OPTIONAL
+} WITH SYNTAX {
+  IDENTIFIED BY &id
+  [REL-OID &rid]
+  [TYPE &Type]
+}
+
+id1 OBJECT IDENTIFIER ::= {1 2 42}
+obj1 CONTAINER ::= { IDENTIFIED BY id1 REL-OID {100 101} }
+
+value-2 OBJECT IDENTIFIER ::= { value-1 25 }
+value-1 OBJECT IDENTIFIER ::= obj1.&id
+value-3 RELATIVE-OID ::= obj1.&rid
+value-4 OBJECT IDENTIFIER ::= { 1 2 value-3 }
+
+
+-- Test an obscure issue when ATTRIBUTE.&id was not
+-- properly evaluated.
+
+Rdn ::= SingleAttribute { {SupportedAttributes} }
+
+ATTRIBUTE ::= CLASS {
+   &id             OBJECT IDENTIFIER UNIQUE,
+   &Type           OPTIONAL
+}
+
+SingleAttribute{ATTRIBUTE:AttrSet} ::= SEQUENCE {
+   type      ATTRIBUTE.&id({AttrSet}),
+   value     ATTRIBUTE.&Type({AttrSet}{@type})
+}
 
+AttributeType ::= ATTRIBUTE.&id
 
+SupportedAttributes ATTRIBUTE ::= { at-name }
+
+id-at OBJECT IDENTIFIER ::= { 2 5 4 41 }
+id-at-name AttributeType ::= id-at
+at-name ATTRIBUTE ::= { &Type PrintableString, &id id-at-name }
+
+--
+-- Test using an alias for TYPE-IDENTIFIER.
+--
+
+TiAliasParameterized { TI-ALIAS:InfoObjectSet } ::= SEQUENCE {
+  algorithm TI-ALIAS.&id({InfoObjectSet}),
+  parameters TI-ALIAS.&Type({InfoObjectSet} {@algorithm}) OPTIONAL
+}
+
+TI-ALIAS ::= TYPE-IDENTIFIER
+
+TiAliasSeq ::= SEQUENCE {
+  prf TiAliasParameterized {{TiAliasSet}}
+}
+
+TiAliasSet TI-ALIAS ::= {
+  {NULL IDENTIFIED BY {2 1 2}},
+   ...
+}
+
+--
+-- Test using an alias for a class.
+--
+
+ALIAS-CONTAINER ::= CLASS {
+  &id INTEGER UNIQUE,
+  &obj INDIRECT-CLASS
+}
+
+INDIRECTED-CLASS ::= CLASS {
+  &id INTEGER UNIQUE,
+  &Type
+}
+
+INDIRECT-CLASS ::= INDIRECTED-CLASS
+
+--
+-- Indirect ObjectClassFieldType in a SEQUENCE.
+--
+
+ContentInfo ::= SEQUENCE {
+  contentType  ContentType, -- Indirect ObjectClassFieldType
+  content      TYPE-IDENTIFIER.&Type({Contents}{@contentType})
+OPTIONAL
+}
+
+Contents TYPE-IDENTIFIER ::= {
+  {IA5String IDENTIFIED BY id-content-type}
+}
+
+ContentType ::= TYPE-IDENTIFIER.&id({Contents})
+id-content-type ContentType ::= { 2 7 8 9 }
+
+--
+-- Tricky parsing of simplified syntax.
+--
+
+TrickyType-1 ::= BIT STRING
+TrickyType-2 ::= OCTET STRING
+
+TRICKY ::= CLASS {
+  &Type1,
+  &Type2
+} WITH SYNTAX {
+   TYPE &Type1 &Type2
+}
+
+tricky-object TRICKY ::= {TYPE TrickyType-1 TrickyType-2}
+
+tricky-bit-string tricky-object.&Type1 ::= '1011'B
+tricky-octet-string tricky-object.&Type1 ::= 'CAFE'H
+
+END
diff --git a/lib/asn1/test/asn1_SUITE_data/InfObjExtract.asn1 b/lib/asn1/test/asn1_SUITE_data/InfObjExtract.asn1
new file mode 100644
index 0000000000..13981b546d
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/InfObjExtract.asn1
@@ -0,0 +1,136 @@
+InfObjExtract DEFINITIONS AUTOMATIC TAGS ::=
+BEGIN
+
+DATA-CLASS ::= CLASS {
+  &id INTEGER UNIQUE,
+  &Type
+} WITH SYNTAX {
+  ID &id
+  TYPE &Type
+}
+
+data-object-1 DATA-CLASS ::= { ID 1 TYPE BOOLEAN }
+data-object-2 DATA-CLASS ::= { ID 2 TYPE OCTET STRING }
+data-object-3 DATA-CLASS ::= { ID 3 TYPE BIT STRING }
+
+ObjSet DATA-CLASS ::= {
+  holder-object-1.&obj |
+  data-object-2 |
+  data-object-3,
+  ...
+}
+
+OBJ-SET DATA-CLASS ::= {
+  holder-object-1.&obj |
+  data-object-2 |
+  data-object-3,
+  ...
+}
+
+SingleElementSet DATA-CLASS ::= {
+  holder-object-1.&obj
+}
+
+holder-object-1 HOLDER-CLASS ::= {
+  OBJ data-object-1
+}
+
+holder-object-2 HOLDER-CLASS ::= {
+  OBJ-SET {data-object-1}
+}
+
+holder-object-3 HOLDER-CLASS ::= {
+  OBJ-SET {holder-object-2.&ObjSet}
+}
+
+-- Note: References to object sets with names in all uppercase/hyphens
+-- may be represented differently compared to object sets with names
+-- that contain lowercase letters. CAVEAT TESTOR.
+
+HOLDER-OBJECTS HOLDER-CLASS ::= { holder-object-2 }
+HolderObjects HOLDER-CLASS ::= { holder-object-3 }
+
+holder-object-4 HOLDER-CLASS ::= {
+  OBJ-SET { HOLDER-OBJECTS.&ObjSet }
+}
+
+holder-object-5 HOLDER-CLASS ::= {
+  OBJ-SET { HolderObjects.&ObjSet }
+}
+
+holder-object-6 HOLDER-CLASS ::= {
+  OBJ-SET { OBJ-SET }
+}
+
+holder-object-7 HOLDER-CLASS ::= {
+  OBJ-SET { ObjSet  }
+}
+
+HOLDER-CLASS ::= CLASS {
+  &obj DATA-CLASS OPTIONAL,
+  &ObjSet DATA-CLASS OPTIONAL
+} WITH SYNTAX {
+  [OBJ &obj]
+  [OBJ-SET &ObjSet]
+}
+
+TestSeq{DATA-CLASS:ObjectSet} ::= SEQUENCE {
+  id DATA-CLASS.&id ({ObjectSet}),
+  data DATA-CLASS.&Type ({ObjectSet}{@id})
+}
+
+DataSeq-1 ::= TestSeq{ {ObjSet} }
+DataSeq-2 ::= TestSeq{ {holder-object-3.&ObjSet} }
+
+DataSeq-3 ::= TestSeq{ {holder-object-4.&ObjSet} }
+DataSeq-4 ::= TestSeq{ {holder-object-5.&ObjSet} }
+DataSeq-5 ::= TestSeq{ {holder-object-6.&ObjSet} }
+DataSeq-6 ::= TestSeq{ {holder-object-7.&ObjSet} }
+
+DataSeqSingleSet-1 ::= TestSeq{ {SingleElementSet} }
+DataSeqSingleSet-2 ::= TestSeq{ {holder-object-1.&obj} }
+
+--
+-- Test ObjectSetFromObjects.
+--
+
+OBJ-CLASS ::= CLASS {
+  &id INTEGER UNIQUE,
+  &Data OPTIONAL,
+  &Obj OBJ-CLASS OPTIONAL,
+  &obj OBJ-CLASS OPTIONAL
+}
+
+obj-class-obj-1 OBJ-CLASS ::= { &id 1, &Data BOOLEAN }
+
+obj-class-obj-2 OBJ-CLASS ::= { &id 2, &Data BOOLEAN,
+			         &Obj {obj-class-obj-1} }
+
+obj-class-obj-3 OBJ-CLASS ::= { &id 3, &Data BOOLEAN,
+			         &obj {&id 99, &Obj {obj-class-obj-1}} }
+
+obj-class-obj-4 OBJ-CLASS ::= { &id 4, &Data BOOLEAN, &obj obj-class-obj-2 }
+
+obj-class-obj-5 OBJ-CLASS ::= { &id 5, &Data BOOLEAN,
+		                &Obj {obj-class-obj-4.&obj} }
+
+ObjClassSet OBJ-CLASS ::= { obj-class-obj-3.&obj.&Obj |
+			    obj-class-obj-4.&Obj | -- Non-existing field
+			    obj-class-obj-5.&Obj
+			   }
+
+TestObjClassSeq{OBJ-CLASS:ObjectSet} ::= SEQUENCE {
+  id OBJ-CLASS.&id ({ObjectSet}),
+  data OBJ-CLASS.&Data ({ObjectSet}{@id})
+}
+
+ObjClassSeq-1 ::= TestObjClassSeq{{ObjClassSet}}
+
+--
+-- Test several levels of inlined definitions.
+--
+
+obj-class-obj-6 OBJ-CLASS ::= { &id 6, &Obj {{&id 100, &Data INTEGER}},
+		                &Data INTEGER }
+
+END
diff --git a/lib/asn1/test/asn1_SUITE_data/MissingEnd.asn1 b/lib/asn1/test/asn1_SUITE_data/MissingEnd.asn1
deleted file mode 100644
index 66912ef693..0000000000
--- a/lib/asn1/test/asn1_SUITE_data/MissingEnd.asn1
+++ /dev/null
@@ -1,5 +0,0 @@
-MissingEnd  DEFINITIONS ::=
-BEGIN
-
-T ::= Typ	
-
diff --git a/lib/asn1/test/asn1_SUITE_data/ObjIdValues.asn1 b/lib/asn1/test/asn1_SUITE_data/ObjIdValues.asn1
index 9368e8dceb..9193ed495c 100644
--- a/lib/asn1/test/asn1_SUITE_data/ObjIdValues.asn1
+++ b/lib/asn1/test/asn1_SUITE_data/ObjIdValues.asn1
@@ -50,6 +50,7 @@ itu-t-o OBJECT IDENTIFIER ::= {itu-t recommendation o}
 itu-t-p OBJECT IDENTIFIER ::= {itu-t recommendation p}
 itu-t-q OBJECT IDENTIFIER ::= {itu-t recommendation q}
 itu-t-r OBJECT IDENTIFIER ::= {itu-t recommendation r}
+itu-t-s OBJECT IDENTIFIER ::= {itu-t recommendation s}
 itu-t-t OBJECT IDENTIFIER ::= {itu-t recommendation t}
 itu-t-u OBJECT IDENTIFIER ::= {itu-t recommendation u}
 itu-t-v OBJECT IDENTIFIER ::= {itu-t recommendation v}
diff --git a/lib/asn1/test/asn1_SUITE_data/ParamBasic.asn1 b/lib/asn1/test/asn1_SUITE_data/ParamBasic.asn1
index 68fc782f33..d203b6c816 100644
--- a/lib/asn1/test/asn1_SUITE_data/ParamBasic.asn1
+++ b/lib/asn1/test/asn1_SUITE_data/ParamBasic.asn1
@@ -42,4 +42,37 @@ SIGNATURE-ALGORITHM ::= CLASS {
     KEY &id CONTAINING &Type
 }
 
+alg-seq-1 AnAlgorithm ::= { algorithm 1, type 42 }
+alg-seq-2 AnAlgorithm ::= { algorithm 2, type TRUE }
+
+--
+-- Test that indirect classes references are resolved.
+--
+
+AlgorithmIdentifier2 { ALGORITHM-IDENTIFIER:InfoObjectSet } ::= SEQUENCE {
+  algorithm ALGORITHM-IDENTIFIER.&id({InfoObjectSet}),
+  parameters ALGORITHM-IDENTIFIER.&Type({InfoObjectSet} {@algorithm}) OPTIONAL
+}
+
+ALGORITHM-IDENTIFIER ::= TYPE-IDENTIFIER
+
+Seq ::= SEQUENCE {
+  c1 AlgorithmIdentifier2 {{ObjectSet-1}},
+  c2 AlgorithmIdentifier2 {{ObjectSet-2}}
+}
+
+ObjectSet-1 ALGORITHM-IDENTIFIER ::= { {INTEGER IDENTIFIED BY {2 1 1}}, ... }
+ObjectSet-2 ALGORITHM-IDENTIFIER ::= { ... }
+
+-- Test a value that uses the instantiation of a parameterized type inline.
+-- (Adapted from PKCS-5.)
+--
+
+algid-hmacWithSHA1 AlgorithmIdentifier2 {{ObjectSet-3}} ::=
+  {algorithm id-hmacWithSHA1, parameters NULL : NULL}
+
+ObjectSet-3 TYPE-IDENTIFIER ::= { {NULL IDENTIFIED BY id-hmacWithSHA1} }
+
+id-hmacWithSHA1 OBJECT IDENTIFIER ::= {2 9 9 9 7}
+
 END
diff --git a/lib/asn1/test/asn1_SUITE_data/Prim.asn1 b/lib/asn1/test/asn1_SUITE_data/Prim.asn1
index cc0e61422a..b4c011fd39 100644
--- a/lib/asn1/test/asn1_SUITE_data/Prim.asn1
+++ b/lib/asn1/test/asn1_SUITE_data/Prim.asn1
@@ -24,6 +24,8 @@ BEGIN
                         friday(5),saturday(6),sunday(7)}
   SingleEnumVal ::= ENUMERATED {true}
   SingleEnumValExt ::= ENUMERATED {true, ...}
+  NegEnumVal ::= ENUMERATED {neg(-1), ..., zero(0)}
+  EnumVal128 ::= ENUMERATED {val(128)}
 
   ObjId ::= OBJECT IDENTIFIER
   
diff --git a/lib/asn1/test/asn1_SUITE_data/SelectionType.asn b/lib/asn1/test/asn1_SUITE_data/SelectionType.asn
index d7bfbf1788..6163f390dd 100644
--- a/lib/asn1/test/asn1_SUITE_data/SelectionType.asn
+++ b/lib/asn1/test/asn1_SUITE_data/SelectionType.asn
@@ -14,7 +14,7 @@ Element ::= CHOICE {bool BOOLEAN,
 		    utf UTF8String,
 		    ro RELATIVE-OID,
 		    nums NumericString,
-		    symbol  PrintableString,
+		    symbol PrintableString,
 		    telet TeletexString,
 		    t61 T61String,
 		    video VideotexString,
@@ -23,13 +23,14 @@ Element ::= CHOICE {bool BOOLEAN,
 		    generalizedTime GeneralizedTime,
 		    gs GraphicString,
 		    vs VisibleString,
---		    iso64 ISO646String,
 		    generalString GeneralString,
 		    univ UniversalString,
 		    cs CHARACTER STRING,
 		    bmp BMPString}
 
-MendeleyevTable ::= SEQUENCE  OF symbol < Element
+MendeleyevTable ::= SEQUENCE OF symbol < Element
+MendeleyevSet ::= SET OF atomic-no < Element
+
 BoolType ::= bool < Element
 
 einsteinium symbol < Element ::= "Es"
@@ -51,7 +52,6 @@ utctimev utctime < Element ::= "9805281429Z"
 gTime generalizedTime < Element ::= "19980528142905.1"
 gsv gs < Element ::= "graphic"
 vsv vs  < Element ::= "visible"
---iso64v iso64 < Element ::= "iso"
 gStringv generalString < Element ::= "general"
 univv univ < Element ::= "Universal"
 bmov bmp < Element ::= "bmp"
diff --git a/lib/asn1/test/asn1_SUITE_data/Seq.py b/lib/asn1/test/asn1_SUITE_data/Seq.py
index f345373ab5..b68f9045a6 100644
--- a/lib/asn1/test/asn1_SUITE_data/Seq.py
+++ b/lib/asn1/test/asn1_SUITE_data/Seq.py
@@ -142,7 +142,10 @@ SeqImp3 ::= SET
   set  Set1
 }
 
-
+SeqCompOf ::= SEQUENCE {
+  ...,
+  COMPONENTS OF SeqS3
+}
 
 END
 
diff --git a/lib/asn1/test/asn1_SUITE_data/SeqOptional2.asn b/lib/asn1/test/asn1_SUITE_data/SeqOptional2.asn
index 7de9134096..bb85c9e418 100644
--- a/lib/asn1/test/asn1_SUITE_data/SeqOptional2.asn
+++ b/lib/asn1/test/asn1_SUITE_data/SeqOptional2.asn
@@ -15,10 +15,10 @@ SeqOpt1Imp ::= SEQUENCE
   bool1 [1] BOOLEAN OPTIONAL,
   int1  INTEGER,
   seq1  [2] SeqIn OPTIONAL,
-  seq2  [2] SeqIn OPTIONAL,
+  seq2  [3] SeqIn OPTIONAL,
   ...,
-  int2  [3] SeqIn,
-  int3  [3] SeqIn
+  int2  [4] SeqIn,
+  int3  [5] SeqIn
 }
 
 SeqOpt1Exp ::= SEQUENCE 
diff --git a/lib/asn1/test/asn1_SUITE_data/SequenceBadComma.asn b/lib/asn1/test/asn1_SUITE_data/SequenceBadComma.asn
deleted file mode 100644
index 436815aa9b..0000000000
--- a/lib/asn1/test/asn1_SUITE_data/SequenceBadComma.asn
+++ /dev/null
@@ -1,10 +0,0 @@
-SequenceBadComma DEFINITIONS IMPLICIT TAGS ::=
-BEGIN
-EXPORTS Person;
-
-Person ::= [PRIVATE 19] SEQUENCE {,
-    name PrintableString,
-    location INTEGER {home(0),field(1),roving(2)},
-    age INTEGER OPTIONAL
-    }
-END
diff --git a/lib/asn1/test/asn1_SUITE_data/SequenceBadComponentName.asn1 b/lib/asn1/test/asn1_SUITE_data/SequenceBadComponentName.asn1
deleted file mode 100644
index 8b2b8816db..0000000000
--- a/lib/asn1/test/asn1_SUITE_data/SequenceBadComponentName.asn1
+++ /dev/null
@@ -1,10 +0,0 @@
-SequenceBadComponentName  DEFINITIONS ::=
-BEGIN
-
-T ::= Typ
-
-Typ ::= SEQUENCE {
-    a INTEGER,
-    C Typ}
-
-END
diff --git a/lib/asn1/test/asn1_SUITE_data/SequenceBadComponentType.asn1 b/lib/asn1/test/asn1_SUITE_data/SequenceBadComponentType.asn1
deleted file mode 100644
index 0c33f48906..0000000000
--- a/lib/asn1/test/asn1_SUITE_data/SequenceBadComponentType.asn1
+++ /dev/null
@@ -1,10 +0,0 @@
-SequenceBadComponentType  DEFINITIONS ::=
-BEGIN
-
-T ::= Typ
-
-Typ ::= SEQUENCE {
-    a b,
-    c T}
-
-END
diff --git a/lib/asn1/test/asn1_SUITE_data/Syntax.py b/lib/asn1/test/asn1_SUITE_data/Syntax.py
deleted file mode 100644
index 867d1148e1..0000000000
--- a/lib/asn1/test/asn1_SUITE_data/Syntax.py
+++ /dev/null
@@ -1,10 +0,0 @@
-Syntax DEFINITIONS IMPLICIT TAGS ::=
-BEGIN
-EXPORTS Person;
-
-Person ::= [PRIVATE 19] SEQUENCE {,
-	name PrintableString,
-	location INTEGER {home(0),field(1),roving(2)},
-	age INTEGER OPTIONAL
-	}
-END
diff --git a/lib/asn1/test/asn1_SUITE_data/ValueTest.asn b/lib/asn1/test/asn1_SUITE_data/ValueTest.asn
index dae9ae498a..b2c59d686a 100644
--- a/lib/asn1/test/asn1_SUITE_data/ValueTest.asn
+++ b/lib/asn1/test/asn1_SUITE_data/ValueTest.asn
@@ -1,4 +1,4 @@
-ValueTest DEFINITIONS  ::= 
+ValueTest DEFINITIONS AUTOMATIC TAGS ::=
 
 BEGIN
 
@@ -23,8 +23,15 @@ vENUMERATED RadioButton ::= button1
 vBS BSNNL ::= {zero,two}
 vNULL NULL ::= NULL
 vOS OCTET STRING ::= '313233'H
-vOD OBJECT IDENTIFIER ::= {2 1 1}
 
+-- OBJECT IDENTIFIER
+vOD OBJECT IDENTIFIER ::= {2 1 1}
+one INTEGER ::= 1
+integer-first OBJECT IDENTIFIER ::= {one 2}
+rel-oid-1 RELATIVE-OID ::= {2 4 5}
+include-roid OBJECT IDENTIFIER ::= {0 rel-oid-1}
+include-oid OBJECT IDENTIFIER ::= {integer-first 1}
+include-all OBJECT IDENTIFIER ::= {integer-first 1 rel-oid-1 42}
 
 --Character strings
 numericstring NumericString ::= "01234567"
@@ -41,7 +48,6 @@ objectdescriptor ObjectDescriptor ::= "ObjectDescriptor"
 graphicstring GraphicString ::= "GraphicString"
 generalstring GeneralString ::= "GeneralString"
 bmpstring1 BMPString ::= "BMPString"
---bmpstring2 BMPString ::= [{0,0,0,66},{0,0,0,77},{0,0,0,80},{0,0,0,115},{0,0,0,116},{0,0,0,114},{0,0,0,105},{0,0,0,110},{0,0,0,103}]
 latinCapitalLetterA UniversalString ::= {0,0,0,65}
 greekCapitalLetterSigma UniversalString ::= {0,0,3,145}
 my-universalstring UniversalString ::= {"This is a capital A: ",
@@ -50,4 +56,88 @@ my-universalstring UniversalString ::= {"This is a capital A: ",
 					greekCapitalLetterSigma,
 					"; try and spot the difference!"}
 
+-- Useful parameterized SEQUENCE.
+ParamSeq{Type} ::= SEQUENCE {
+    a Type
+}
+
+-- Integer values.
+IntegerSeq ::= ParamSeq{INTEGER}
+someInteger INTEGER ::= 42
+integerSeq1 IntegerSeq ::= { a otherInteger }
+otherInteger INTEGER ::= someInteger
+
+--
+-- Values from objects.
+--
+int-from-object-1 INTEGER ::= int-holder-2.&obj.&id
+int-from-object-2 INTEGER ::= int-holder-2.&id
+
+INT-HOLDER ::= CLASS {
+  &id INTEGER UNIQUE,
+  &obj INT-HOLDER OPTIONAL
+} WITH SYNTAX {
+  ID &id
+  [OBJ &obj]
+}
+
+int-holder-1 INT-HOLDER ::= { ID 2 }
+int-holder-2 INT-HOLDER ::= { ID 4 OBJ int-holder-1 }
+
+II ::= INTEGER (int-from-object-1..int-from-object-2)
+
+-- Recursive OCTET STRING definitions.
+
+OS-HOLDER ::= CLASS {
+  &id INTEGER UNIQUE,
+  &os OCTET STRING
+} WITH SYNTAX {
+  ID &id OS &os
+}
+
+os-holder-1 OS-HOLDER ::= { ID 1 OS '4041FF'H }
+
+OctetStringSeq ::= ParamSeq{OCTET STRING}
+
+someOctetString OCTET STRING ::= '404142'H
+
+octetStringSeq1 OctetStringSeq ::= { a someOctetString }
+octetStringSeq2 OctetStringSeq ::= { a otherOctetString }
+octetStringSeq3 OctetStringSeq ::= { a os-holder-1.&os }
+
+otherOctetString OCTET STRING ::= someOctetString
+
+os-1 OCTET STRING ::= os-2
+os-2 OCTET STRING ::= os-holder-1.&os
+
+-- Recursive BIT STRING definitions.
+
+BS-HOLDER ::= CLASS {
+  &id INTEGER UNIQUE,
+  &bs BIT STRING,
+  &named-bs NamedBsType
+} WITH SYNTAX {
+  ID &id BS &bs NAMED-BS &named-bs
+}
+bs-holder-1 BS-HOLDER ::= { ID 1 BS '101'B NAMED-BS {a,c} }
+
+NamedBsType ::= BIT STRING {a(0),b(1),c(2)}
+BsSeq ::= SEQUENCE {
+  a BIT STRING,
+  b NamedBsType
+}
+
+someBitString BIT STRING ::= '101101'B
+
+bsSeq1 BsSeq ::= { a someBitString, b someNamedBs }
+bsSeq2 BsSeq ::= { a otherBitString, b someOtherNamedBs }
+bsSeq3 BsSeq ::= { a bs-holder-1.&bs, b bs-holder-1.&named-bs }
+
+otherBitString BIT STRING ::= someBitString
+bsFromObjectInd BIT STRING ::= bsFromObject
+bsFromObject BIT STRING ::= bs-holder-1.&bs
+
+someOtherNamedBs NamedBsType ::= someNamedBs
+someNamedBs NamedBsType ::= {c}
+
 END
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/ACSE-1.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/ACSE-1.asn1
index 3f1385323a..3f1385323a 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/ACSE-1.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/ACSE-1.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/AlgorithmInformation-2009.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/AlgorithmInformation-2009.asn1
new file mode 100644
index 0000000000..f912966c72
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/AlgorithmInformation-2009.asn1
@@ -0,0 +1,466 @@
+AlgorithmInformation-2009
+    {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+    mechanisms(5) pkix(7) id-mod(0)
+    id-mod-algorithmInformation-02(58)}
+
+DEFINITIONS EXPLICIT TAGS ::=
+BEGIN
+EXPORTS ALL;
+IMPORTS
+
+KeyUsage
+FROM PKIX1Implicit-2009
+    {iso(1) identified-organization(3) dod(6) internet(1)
+    security(5) mechanisms(5) pkix(7) id-mod(0)
+    id-mod-pkix1-implicit-02(59)} ;
+
+--  Suggested prefixes for algorithm objects are:
+--
+--  mda-   Message Digest Algorithms
+--  sa-    Signature Algorithms
+--  kta-   Key Transport Algorithms (Asymmetric)
+--  kaa-   Key Agreement Algorithms  (Asymmetric)
+--  kwa-   Key Wrap Algorithms (Symmetric)
+--  kda-   Key Derivation Algorithms
+--  maca-  Message Authentication Code Algorithms
+--  pk-    Public Key
+--  cea-   Content (symmetric) Encryption Algorithms
+--  cap-   S/MIME Capabilities
+
+ParamOptions ::= ENUMERATED {
+   required,         -- Parameters MUST be encoded in structure
+   preferredPresent, -- Parameters SHOULD be encoded in structure
+   preferredAbsent,  -- Parameters SHOULD NOT be encoded in structure
+   absent,           -- Parameters MUST NOT be encoded in structure
+   inheritable,      -- Parameters are inherited if not present
+   optional,         -- Parameters MAY be encoded in the structure
+   ...
+}
+
+--  DIGEST-ALGORITHM
+--
+--  Describes the basic information for ASN.1 and a digest
+--      algorithm.
+--
+--  &id - contains the OID identifying the digest algorithm
+--  &Params - if present, contains the type for the algorithm
+--               parameters; if absent, implies no parameters
+--  &paramPresence - parameter presence requirement
+--
+--  Additional information such as the length of the hash could have
+--      been encoded.  Without a clear understanding of what information
+--      is needed by applications, such extraneous information was not
+--      considered to be of sufficent importance.
+--
+--  Example:
+--  mda-sha1 DIGEST-ALGORITHM ::= {
+--      IDENTIFIER id-sha1
+--      PARAMS TYPE NULL ARE preferredAbsent
+--  }
+
+DIGEST-ALGORITHM ::= CLASS {
+    &id                 OBJECT IDENTIFIER UNIQUE,
+    &Params             OPTIONAL,
+    &paramPresence      ParamOptions DEFAULT absent
+} WITH SYNTAX {
+    IDENTIFIER &id
+    [PARAMS [TYPE &Params] ARE &paramPresence ]
+}
+
+--  SIGNATURE-ALGORITHM
+--
+--  Describes the basic properties of a signature algorithm
+--
+--  &id - contains the OID identifying the signature algorithm
+--  &Value - contains a type definition for the value structure of
+--              the signature; if absent, implies that no ASN.1
+--              encoding is performed on the value
+--  &Params - if present, contains the type for the algorithm
+--               parameters; if absent, implies no parameters
+--  &paramPresence - parameter presence requirement
+--  &HashSet - The set of hash algorithms used with this
+--                  signature algorithm
+--  &PublicKeySet - the set of public key algorithms for this
+--                  signature algorithm
+--  &smimeCaps - contains the object describing how the S/MIME
+--              capabilities are presented.
+--
+--  Example:
+--  sig-RSA-PSS SIGNATURE-ALGORITHM ::= {
+--     IDENTIFIER id-RSASSA-PSS
+--     PARAMS TYPE RSASSA-PSS-params ARE required
+--     HASHES { mda-sha1 | mda-md5, ... }
+--     PUBLIC-KEYS { pk-rsa | pk-rsa-pss }
+-- }
+
+SIGNATURE-ALGORITHM ::= CLASS {
+    &id             OBJECT IDENTIFIER UNIQUE,
+    &Value          OPTIONAL,
+    &Params         OPTIONAL,
+    &paramPresence  ParamOptions DEFAULT absent,
+    &HashSet        DIGEST-ALGORITHM OPTIONAL,
+    &PublicKeySet   PUBLIC-KEY OPTIONAL,
+    &smimeCaps      SMIME-CAPS OPTIONAL
+} WITH SYNTAX {
+    IDENTIFIER &id
+    [VALUE &Value]
+    [PARAMS [TYPE &Params] ARE &paramPresence ]
+    [HASHES &HashSet]
+    [PUBLIC-KEYS &PublicKeySet]
+    [SMIME-CAPS &smimeCaps]
+}
+
+--  PUBLIC-KEY
+--
+--  Describes the basic properties of a public key
+--
+--  &id - contains the OID identifying the public key
+--  &KeyValue - contains the type for the key value
+--  &Params - if present, contains the type for the algorithm
+--               parameters; if absent, implies no parameters
+--  &paramPresence - parameter presence requirement
+--  &keyUsage - contains the set of bits that are legal for this
+--              key type.  Note that is does not make any statement
+--              about how bits may be paired.
+--  &PrivateKey - contains a type structure for encoding the private
+--              key information.
+--
+--  Example:
+--  pk-rsa-pss PUBLIC-KEY ::= {
+--      IDENTIFIER id-RSASSA-PSS
+--      KEY RSAPublicKey
+--      PARAMS TYPE RSASSA-PSS-params ARE optional
+--      CERT-KEY-USAGE { .... }
+--  }
+
+PUBLIC-KEY ::= CLASS {
+    &id             OBJECT IDENTIFIER UNIQUE,
+    &KeyValue       OPTIONAL,
+    &Params         OPTIONAL,
+    &paramPresence  ParamOptions DEFAULT absent,
+    &keyUsage       KeyUsage OPTIONAL,
+    &PrivateKey     OPTIONAL
+} WITH SYNTAX {
+    IDENTIFIER &id
+    [KEY &KeyValue]
+    [PARAMS [TYPE &Params] ARE &paramPresence]
+    [CERT-KEY-USAGE &keyUsage]
+    [PRIVATE-KEY &PrivateKey]
+}
+
+--  KEY-TRANSPORT
+--
+--  Describes the basic properties of a key transport algorithm
+--
+--  &id - contains the OID identifying the key transport algorithm
+--  &Params - if present, contains the type for the algorithm
+--               parameters; if absent, implies no parameters
+--  &paramPresence - parameter presence requirement
+--  &PublicKeySet - specifies which public keys are used with
+--                       this algorithm
+--  &smimeCaps - contains the object describing how the S/MIME
+--              capabilities are presented.
+--
+--  Example:
+--  kta-rsaTransport KEY-TRANSPORT ::= {
+--      IDENTIFIER &id
+--      PARAMS TYPE NULL ARE required
+--      PUBLIC-KEYS  { pk-rsa | pk-rsa-pss }
+--  }
+
+KEY-TRANSPORT ::= CLASS {
+    &id                 OBJECT IDENTIFIER UNIQUE,
+    &Params             OPTIONAL,
+    &paramPresence      ParamOptions DEFAULT absent,
+    &PublicKeySet       PUBLIC-KEY OPTIONAL,
+    &smimeCaps          SMIME-CAPS OPTIONAL
+} WITH SYNTAX {
+    IDENTIFIER &id
+    [PARAMS [TYPE &Params] ARE &paramPresence]
+    [PUBLIC-KEYS &PublicKeySet]
+    [SMIME-CAPS &smimeCaps]
+}
+
+--  KEY-AGREE
+--
+--  Describes the basic properties of a key agreement algorithm
+--
+--  &id - contains the OID identifying the key agreement algorithm
+--  &Params - if present, contains the type for the algorithm
+--               parameters; if absent, implies no parameters
+--  &paramPresence - parameter presence requirement
+--  &PublicKeySet - specifies which public keys are used with
+--                        this algorithm
+--  &Ukm - type of user keying material used
+--  &ukmPresence - specifies the requirements to define the UKM field
+--  &smimeCaps - contains the object describing how the S/MIME
+--              capabilities are presented.
+--
+--  Example:
+--  kaa-dh-static-ephemeral KEY-AGREE ::= {
+--      IDENTIFIER id-alg-ESDH
+--      PARAMS TYPE KeyWrapAlgorithm ARE required
+--      PUBLIC-KEYS {
+--         {IDENTIFIER dh-public-number KEY DHPublicKey
+--            PARAMS TYPE DHDomainParameters ARE inheritable }
+--      }
+--      - - UKM should be present but is not separately ASN.1-encoded
+--      UKM ARE preferredPresent
+--  }
+
+KEY-AGREE ::= CLASS {
+    &id             OBJECT IDENTIFIER UNIQUE,
+    &Params         OPTIONAL,
+    &paramPresence  ParamOptions DEFAULT absent,
+    &PublicKeySet   PUBLIC-KEY OPTIONAL,
+    &Ukm            OPTIONAL,
+    &ukmPresence    ParamOptions DEFAULT absent,
+    &smimeCaps      SMIME-CAPS OPTIONAL
+} WITH SYNTAX {
+    IDENTIFIER &id
+    [PARAMS [TYPE &Params] ARE &paramPresence]
+    [PUBLIC-KEYS &PublicKeySet]
+    [UKM [TYPE &Ukm] ARE &ukmPresence]
+    [SMIME-CAPS &smimeCaps]
+}
+
+--  KEY-WRAP
+--
+--  Describes the basic properties of a key wrap algorithm
+--
+--  &id - contains the OID identifying the key wrap algorithm
+--  &Params - if present, contains the type for the algorithm
+--               parameters; if absent, implies no parameters
+--  &paramPresence - parameter presence requirement
+--  &smimeCaps - contains the object describing how the S/MIME
+--              capabilities are presented.
+--
+--  Example:
+--  kwa-cms3DESwrap KEY-WRAP ::= {
+--      IDENTIFIER id-alg-CMS3DESwrap
+--      PARAMS TYPE NULL ARE required
+--  }
+
+KEY-WRAP ::= CLASS {
+    &id                OBJECT IDENTIFIER UNIQUE,
+    &Params            OPTIONAL,
+    &paramPresence     ParamOptions DEFAULT absent,
+    &smimeCaps         SMIME-CAPS OPTIONAL
+} WITH SYNTAX {
+    IDENTIFIER &id
+    [PARAMS [TYPE &Params] ARE &paramPresence]
+    [SMIME-CAPS &smimeCaps]
+}
+--  KEY-DERIVATION
+--
+--  Describes the basic properties of a key derivation algorithm
+--
+--  &id - contains the OID identifying the key derivation algorithm
+--  &Params - if present, contains the type for the algorithm
+--               parameters; if absent, implies no parameters
+--  &paramPresence - parameter presence requirement
+--  &smimeCaps - contains the object describing how the S/MIME
+--              capabilities are presented.
+--
+--  Example:
+--  kda-pbkdf2 KEY-DERIVATION ::= {
+--      IDENTIFIER id-PBKDF2
+--      PARAMS TYPE PBKDF2-params ARE required
+--  }
+
+KEY-DERIVATION ::= CLASS {
+    &id                OBJECT IDENTIFIER UNIQUE,
+    &Params            OPTIONAL,
+    &paramPresence     ParamOptions DEFAULT absent,
+    &smimeCaps         SMIME-CAPS OPTIONAL
+} WITH SYNTAX {
+    IDENTIFIER &id
+    [PARAMS [TYPE &Params] ARE &paramPresence]
+    [SMIME-CAPS &smimeCaps]
+}
+
+-- MAC-ALGORITHM
+--
+--  Describes the basic properties of a message
+--      authentication code (MAC) algorithm
+--
+--  &id - contains the OID identifying the MAC algorithm
+--  &Params - if present, contains the type for the algorithm
+--               parameters; if absent, implies no parameters
+--  &paramPresence - parameter presence requirement
+--  &keyed - MAC algorithm is a keyed MAC algorithm
+--  &smimeCaps - contains the object describing how the S/MIME
+--              capabilities are presented.
+--
+--  Some parameters that perhaps should have been added would be
+--  fields with the minimum and maximum MAC lengths for
+--  those MAC algorithms that allow truncations.
+--
+--  Example:
+--  maca-hmac-sha1 MAC-ALGORITHM ::= {
+--      IDENTIFIER hMAC-SHA1
+--      PARAMS TYPE NULL ARE preferredAbsent
+--      IS KEYED MAC TRUE
+--      SMIME-CAPS {IDENTIFIED BY hMAC-SHA1}
+--  }
+
+MAC-ALGORITHM ::= CLASS {
+    &id                 OBJECT IDENTIFIER UNIQUE,
+    &Params             OPTIONAL,
+    &paramPresence      ParamOptions DEFAULT absent,
+    &keyed              BOOLEAN,
+    &smimeCaps          SMIME-CAPS OPTIONAL
+} WITH SYNTAX {
+    IDENTIFIER &id
+    [PARAMS [TYPE &Params] ARE &paramPresence]
+    IS-KEYED-MAC &keyed
+    [SMIME-CAPS &smimeCaps]
+}
+
+--  CONTENT-ENCRYPTION
+--
+--  Describes the basic properties of a content encryption
+--      algorithm
+--
+--  &id - contains the OID identifying the content
+--        encryption algorithm
+--  &Params - if present, contains the type for the algorithm
+--               parameters; if absent, implies no parameters
+--  &paramPresence - parameter presence requirement
+--  &smimeCaps - contains the object describing how the S/MIME
+--              capabilities are presented.
+--
+--  Example:
+--  cea-3DES-cbc CONTENT-ENCRYPTION ::= {
+--      IDENTIFIER des-ede3-cbc
+--      PARAMS TYPE IV ARE required
+--      SMIME-CAPS { IDENTIFIED BY des-ede3-cbc }
+--  }
+
+CONTENT-ENCRYPTION ::= CLASS {
+    &id                OBJECT IDENTIFIER UNIQUE,
+    &Params            OPTIONAL,
+    &paramPresence     ParamOptions DEFAULT absent,
+    &smimeCaps         SMIME-CAPS OPTIONAL
+} WITH SYNTAX {
+    IDENTIFIER &id
+    [PARAMS [TYPE &Params] ARE &paramPresence]
+    [SMIME-CAPS &smimeCaps]
+}
+
+-- ALGORITHM
+--
+-- Describes a generic algorithm identifier
+--
+--  &id - contains the OID identifying the algorithm
+--  &Params - if present, contains the type for the algorithm
+--               parameters; if absent, implies no parameters
+--  &paramPresence - parameter presence requirement
+--  &smimeCaps - contains the object describing how the S/MIME
+--              capabilities are presented.
+--
+--  This would be used for cases where an algorithm of an unknown
+--  type is used.  In general however, one should either define
+--  a more complete algorithm structure (such as the one above)
+--  or use the TYPE-IDENTIFIER class.
+
+ALGORITHM ::= CLASS {
+    &id OBJECT   IDENTIFIER UNIQUE,
+    &Params      OPTIONAL,
+    &paramPresence ParamOptions DEFAULT absent,
+    &smimeCaps   SMIME-CAPS OPTIONAL
+} WITH SYNTAX {
+    IDENTIFIER &id
+    [PARAMS [TYPE &Params] ARE &paramPresence]
+    [SMIME-CAPS &smimeCaps]
+}
+
+-- AlgorithmIdentifier
+--
+-- Provides the generic structure that is used to encode algorithm
+--    identification and the parameters associated with the
+--    algorithm.
+--
+-- The first parameter represents the type of the algorithm being
+--    used.
+-- The second parameter represents an object set containing the
+--    algorithms that may occur in this situation.
+--    The initial list of required algorithms should occur to the
+--      left of an extension marker; all other algorithms should
+--      occur to the right of an extension marker.
+--
+-- The object class ALGORITHM can be used for generic unspecified
+--     items.
+-- If new ALGORITHM classes are defined, the fields &id and &Params
+--     need to be present as fields in the object in order to use
+--     this parameterized type.
+--
+-- Example:
+--    SignatureAlgorithmIdentifier ::=
+--       AlgorithmIdentifier{SIGNATURE-ALGORITHM, {SignatureAlgSet}}
+
+AlgorithmIdentifier{ALGORITHM-TYPE, ALGORITHM-TYPE:AlgorithmSet} ::=
+        SEQUENCE {
+            algorithm   ALGORITHM-TYPE.&id({AlgorithmSet}),
+            parameters  ALGORITHM-TYPE.
+                   &Params({AlgorithmSet}{@algorithm}) OPTIONAL
+        }
+
+--  S/MIME Capabilities
+--
+--  We have moved the SMIME-CAPS from the module for RFC 3851 to here
+--  because it is used in RFC 4262 (X.509 Certificate Extension for
+--  S/MIME Capabilities)
+--
+--
+--  This class is used to represent an S/MIME capability.  S/MIME
+--  capabilities are used to represent what algorithm capabilities
+--  an individual has.  The classic example was the content encryption
+--  algorithm RC2 where the algorithm id and the RC2 key lengths
+--  supported needed to be advertised, but the IV used is not fixed.
+--  Thus, for RC2 we used
+--
+--  cap-RC2CBC SMIME-CAPS ::= {
+--      TYPE INTEGER ( 40 | 128 ) IDENTIFIED BY rc2-cbc }
+--
+--  where 40 and 128 represent the RC2 key length in number of bits.
+--
+--  Another example where information needs to be shown is for
+--  RSA-OAEP where only specific hash functions or mask generation
+--  functions are supported, but the saltLength is specified by the
+--  sender and not the recipient.  In this case, one can either
+--  generate a number of capability items,
+--  or a new S/MIME capability type could be generated where
+--  multiple hash functions could be specified.
+--
+--
+--  SMIME-CAP
+--
+--  This class is used to associate the type that describes the
+--  capabilities with the object identifier.
+--
+
+SMIME-CAPS ::= CLASS {
+    &id         OBJECT IDENTIFIER UNIQUE,
+    &Type       OPTIONAL
+}
+WITH SYNTAX { [TYPE &Type] IDENTIFIED BY &id }
+
+--
+--  Generic type - this is used for defining values.
+--
+
+--  Define a single S/MIME capability encoding
+
+SMIMECapability{SMIME-CAPS:CapabilitySet} ::= SEQUENCE {
+    capabilityID        SMIME-CAPS.&id({CapabilitySet}),
+    parameters          SMIME-CAPS.&Type({CapabilitySet}
+                            {@capabilityID}) OPTIONAL
+}
+
+--  Define a sequence of S/MIME capability values
+
+SMIMECapabilities { SMIME-CAPS:CapabilitySet } ::=
+        SEQUENCE SIZE (1..MAX) OF SMIMECapability{{CapabilitySet} }
+
+END
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/AttributeCertificateVersion1-2009.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/AttributeCertificateVersion1-2009.asn1
new file mode 100644
index 0000000000..46b431af40
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/AttributeCertificateVersion1-2009.asn1
@@ -0,0 +1,59 @@
+  AttributeCertificateVersion1-2009
+      {iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9)
+      smime(16) modules(0) id-mod-v1AttrCert-02(49)}
+  DEFINITIONS EXPLICIT TAGS ::=
+  BEGIN
+  IMPORTS
+
+  SIGNATURE-ALGORITHM, ALGORITHM, AlgorithmIdentifier{}
+  FROM AlgorithmInformation-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0)
+      id-mod-algorithmInformation-02(58)}
+
+  AttributeSet{}, Extensions{}, EXTENSION, ATTRIBUTE
+  FROM PKIX-CommonTypes-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-pkixCommon-02(57) }
+
+  CertificateSerialNumber, UniqueIdentifier, SIGNED{}
+  FROM PKIX1Explicit-2009
+      { iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-explicit-02(51) }
+
+  GeneralNames
+  FROM PKIX1Implicit-2009
+      { iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-implicit-02(59) }
+
+  AttCertValidityPeriod, IssuerSerial
+  FROM PKIXAttributeCertificate-2009
+      { iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-attribute-cert-02(47) } ;
+
+  -- Definition extracted from X.509-1997 [X.509-97], but
+  -- different type names are used to avoid collisions.
+
+  AttributeCertificateV1 ::= SIGNED{AttributeCertificateInfoV1}
+
+  AttributeCertificateInfoV1 ::= SEQUENCE {
+     version AttCertVersionV1 DEFAULT v1,
+     subject CHOICE {
+        baseCertificateID [0] IssuerSerial,
+        -- associated with a Public Key Certificate
+        subjectName [1] GeneralNames },
+     -- associated with a name
+     issuer GeneralNames,
+     signature AlgorithmIdentifier{SIGNATURE-ALGORITHM, {...}},
+     serialNumber CertificateSerialNumber,
+     attCertValidityPeriod AttCertValidityPeriod,
+     attributes SEQUENCE OF AttributeSet{{AttrList}},
+     issuerUniqueID UniqueIdentifier OPTIONAL,
+     extensions Extensions{{AttributeCertExtensionsV1}} OPTIONAL }
+
+  AttCertVersionV1 ::= INTEGER { v1(0) }
+
+  AttrList ATTRIBUTE ::= {...}
+  AttributeCertExtensionsV1 EXTENSION ::= {...}
+
+  END
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/AuthenticationFramework.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/AuthenticationFramework.asn1
index 5cfa9062f0..5cfa9062f0 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/AuthenticationFramework.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/AuthenticationFramework.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/BasicAccessControl.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/BasicAccessControl.asn1
index d8b2b687ae..d8b2b687ae 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/BasicAccessControl.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/BasicAccessControl.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/CertificateExtensions.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/CertificateExtensions.asn1
index 0daf2208e9..0daf2208e9 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/CertificateExtensions.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/CertificateExtensions.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Character-Coding-Attributes.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Character-Coding-Attributes.asn1
index 04060cf060..04060cf060 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Character-Coding-Attributes.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Character-Coding-Attributes.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Character-Presentation-Attributes.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Character-Presentation-Attributes.asn1
index aed48ac26b..aed48ac26b 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Character-Presentation-Attributes.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Character-Presentation-Attributes.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Character-Profile-Attributes.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Character-Profile-Attributes.asn1
index 7ba5bf194a..7ba5bf194a 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Character-Profile-Attributes.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Character-Profile-Attributes.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Colour-Attributes.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Colour-Attributes.asn1
index 24c7fafc38..24c7fafc38 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Colour-Attributes.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Colour-Attributes.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/CryptographicMessageSyntax-2009.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/CryptographicMessageSyntax-2009.asn1
new file mode 100644
index 0000000000..3e350294be
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/CryptographicMessageSyntax-2009.asn1
@@ -0,0 +1,463 @@
+  CryptographicMessageSyntax-2009
+      { iso(1) member-body(2) us(840) rsadsi(113549)
+      pkcs(1) pkcs-9(9) smime(16) modules(0) id-mod-cms-2004-02(41) }
+  DEFINITIONS IMPLICIT TAGS ::=
+  BEGIN
+  IMPORTS
+
+  ParamOptions, DIGEST-ALGORITHM, SIGNATURE-ALGORITHM,
+      PUBLIC-KEY, KEY-DERIVATION, KEY-WRAP, MAC-ALGORITHM,
+      KEY-AGREE, KEY-TRANSPORT, CONTENT-ENCRYPTION, ALGORITHM,
+      AlgorithmIdentifier
+  FROM AlgorithmInformation-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0)
+      id-mod-algorithmInformation-02(58)}
+  SignatureAlgs, MessageDigestAlgs, KeyAgreementAlgs,
+      MessageAuthAlgs, KeyWrapAlgs, ContentEncryptionAlgs,
+      KeyTransportAlgs, KeyDerivationAlgs, KeyAgreePublicKeys
+  FROM CryptographicMessageSyntaxAlgorithms-2009
+      { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9)
+      smime(16) modules(0) id-mod-cmsalg-2001-02(37) }
+
+  Certificate, CertificateList, CertificateSerialNumber,
+      Name, ATTRIBUTE
+  FROM PKIX1Explicit-2009
+      { iso(1) identified-organization(3) dod(6) internet(1)
+      security(5) mechanisms(5) pkix(7) id-mod(0)
+      id-mod-pkix1-explicit-02(51) }
+
+  AttributeCertificate
+  FROM PKIXAttributeCertificate-2009
+      { iso(1) identified-organization(3) dod(6) internet(1)
+      security(5) mechanisms(5) pkix(7) id-mod(0)
+      id-mod-attribute-cert-02(47) }
+
+  AttributeCertificateV1
+  FROM AttributeCertificateVersion1-2009
+      { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9)
+      smime(16) modules(0) id-mod-v1AttrCert-02(49) } ;
+
+  -- Cryptographic Message Syntax
+
+  -- The following are used for version numbers using the ASN.1
+  --   idiom "[[n:"
+  --   Version 1 = PKCS #7
+  --   Version 2 = S/MIME V2
+  --   Version 3 = RFC 2630
+  --   Version 4 = RFC 3369
+  --   Version 5 = RFC 3852
+
+  CONTENT-TYPE ::= TYPE-IDENTIFIER
+  ContentType ::= CONTENT-TYPE.&id
+
+  ContentInfo ::= SEQUENCE {
+      contentType        CONTENT-TYPE.
+                      &id({ContentSet}),
+      content            [0] EXPLICIT CONTENT-TYPE.
+                      &Type({ContentSet}{@contentType})}
+
+  ContentSet CONTENT-TYPE ::= {
+      --  Define the set of content types to be recognized.
+      ct-Data | ct-SignedData | ct-EncryptedData | ct-EnvelopedData |
+      ct-AuthenticatedData | ct-DigestedData, ... }
+
+  SignedData ::= SEQUENCE {
+      version CMSVersion,
+      digestAlgorithms SET OF DigestAlgorithmIdentifier,
+      encapContentInfo EncapsulatedContentInfo,
+      certificates [0] IMPLICIT CertificateSet OPTIONAL,
+      crls [1] IMPLICIT RevocationInfoChoices OPTIONAL,
+      signerInfos SignerInfos }
+
+  SignerInfos ::= SET OF SignerInfo
+
+  EncapsulatedContentInfo ::= SEQUENCE {
+      eContentType       CONTENT-TYPE.&id({ContentSet}),
+      eContent           [0] EXPLICIT OCTET STRING
+              ( CONTAINING CONTENT-TYPE.
+                  &Type({ContentSet}{@eContentType})) OPTIONAL }
+
+  SignerInfo ::= SEQUENCE {
+      version CMSVersion,
+      sid SignerIdentifier,
+      digestAlgorithm DigestAlgorithmIdentifier,
+      signedAttrs [0] IMPLICIT SignedAttributes OPTIONAL,
+      signatureAlgorithm SignatureAlgorithmIdentifier,
+      signature SignatureValue,
+      unsignedAttrs [1] IMPLICIT Attributes
+          {{UnsignedAttributes}} OPTIONAL }
+
+  SignedAttributes ::= Attributes {{ SignedAttributesSet }}
+
+  SignerIdentifier ::= CHOICE {
+      issuerAndSerialNumber IssuerAndSerialNumber,
+      ...,
+      [[3: subjectKeyIdentifier [0] SubjectKeyIdentifier ]] }
+
+  SignedAttributesSet ATTRIBUTE ::=
+      { aa-signingTime | aa-messageDigest | aa-contentType, ... }
+
+  UnsignedAttributes ATTRIBUTE ::= { aa-countersignature, ... }
+
+  SignatureValue ::= OCTET STRING
+
+  EnvelopedData ::= SEQUENCE {
+      version CMSVersion,
+      originatorInfo [0] IMPLICIT OriginatorInfo OPTIONAL,
+      recipientInfos RecipientInfos,
+      encryptedContentInfo EncryptedContentInfo,
+      ...,
+      [[2: unprotectedAttrs [1] IMPLICIT Attributes
+          {{ UnprotectedAttributes }} OPTIONAL ]] }
+
+  OriginatorInfo ::= SEQUENCE {
+      certs [0] IMPLICIT CertificateSet OPTIONAL,
+      crls [1] IMPLICIT RevocationInfoChoices OPTIONAL }
+
+  RecipientInfos ::= SET SIZE (1..MAX) OF RecipientInfo
+
+  EncryptedContentInfo ::= SEQUENCE {
+      contentType        CONTENT-TYPE.&id({ContentSet}),
+      contentEncryptionAlgorithm ContentEncryptionAlgorithmIdentifier,
+      encryptedContent   [0] IMPLICIT OCTET STRING OPTIONAL }
+
+  -- If you want to do constraints, you might use:
+  -- EncryptedContentInfo ::= SEQUENCE {
+  --  contentType        CONTENT-TYPE.&id({ContentSet}),
+  --  contentEncryptionAlgorithm ContentEncryptionAlgorithmIdentifier,
+  --  encryptedContent   [0] IMPLICIT ENCRYPTED {CONTENT-TYPE.
+  --      &Type({ContentSet}{@contentType}) OPTIONAL }
+  -- ENCRYPTED {ToBeEncrypted} ::= OCTET STRING ( CONSTRAINED BY
+  --        { ToBeEncrypted } )
+
+  UnprotectedAttributes ATTRIBUTE ::=  { ... }
+
+  RecipientInfo ::= CHOICE {
+      ktri           KeyTransRecipientInfo,
+      ...,
+      [[3: kari  [1] KeyAgreeRecipientInfo ]],
+      [[4: kekri [2] KEKRecipientInfo]],
+      [[5: pwri  [3] PasswordRecipientInfo,
+           ori   [4] OtherRecipientInfo ]] }
+
+  EncryptedKey ::= OCTET STRING
+
+  KeyTransRecipientInfo ::= SEQUENCE {
+      version CMSVersion,  -- always set to 0 or 2
+      rid RecipientIdentifier,
+      keyEncryptionAlgorithm AlgorithmIdentifier
+          {KEY-TRANSPORT, {KeyTransportAlgorithmSet}},
+      encryptedKey EncryptedKey }
+
+  KeyTransportAlgorithmSet KEY-TRANSPORT ::= { KeyTransportAlgs, ... }
+
+  RecipientIdentifier ::= CHOICE {
+      issuerAndSerialNumber IssuerAndSerialNumber,
+      ...,
+      [[2: subjectKeyIdentifier [0] SubjectKeyIdentifier ]] }
+  KeyAgreeRecipientInfo ::= SEQUENCE {
+      version CMSVersion,  -- always set to 3
+      originator [0] EXPLICIT OriginatorIdentifierOrKey,
+      ukm [1] EXPLICIT UserKeyingMaterial OPTIONAL,
+      keyEncryptionAlgorithm AlgorithmIdentifier
+          {KEY-AGREE, {KeyAgreementAlgorithmSet}},
+      recipientEncryptedKeys RecipientEncryptedKeys }
+
+  KeyAgreementAlgorithmSet KEY-AGREE ::= { KeyAgreementAlgs, ... }
+
+  OriginatorIdentifierOrKey ::= CHOICE {
+      issuerAndSerialNumber IssuerAndSerialNumber,
+      subjectKeyIdentifier [0] SubjectKeyIdentifier,
+      originatorKey [1] OriginatorPublicKey }
+
+  OriginatorPublicKey ::= SEQUENCE {
+      algorithm AlgorithmIdentifier {PUBLIC-KEY, {OriginatorKeySet}},
+      publicKey BIT STRING }
+
+  OriginatorKeySet PUBLIC-KEY ::= { KeyAgreePublicKeys, ... }
+
+  RecipientEncryptedKeys ::= SEQUENCE OF RecipientEncryptedKey
+
+  RecipientEncryptedKey ::= SEQUENCE {
+      rid KeyAgreeRecipientIdentifier,
+      encryptedKey EncryptedKey }
+
+  KeyAgreeRecipientIdentifier ::= CHOICE {
+      issuerAndSerialNumber IssuerAndSerialNumber,
+      rKeyId [0] IMPLICIT RecipientKeyIdentifier }
+
+  RecipientKeyIdentifier ::= SEQUENCE {
+      subjectKeyIdentifier SubjectKeyIdentifier,
+      date GeneralizedTime OPTIONAL,
+      other OtherKeyAttribute OPTIONAL }
+
+  SubjectKeyIdentifier ::= OCTET STRING
+
+  KEKRecipientInfo ::= SEQUENCE {
+      version CMSVersion,  -- always set to 4
+      kekid KEKIdentifier,
+      keyEncryptionAlgorithm KeyEncryptionAlgorithmIdentifier,
+      encryptedKey EncryptedKey }
+
+  KEKIdentifier ::= SEQUENCE {
+      keyIdentifier OCTET STRING,
+      date GeneralizedTime OPTIONAL,
+      other OtherKeyAttribute OPTIONAL }
+  PasswordRecipientInfo ::= SEQUENCE {
+      version CMSVersion,   -- always set to 0
+      keyDerivationAlgorithm [0] KeyDerivationAlgorithmIdentifier
+                              OPTIONAL,
+      keyEncryptionAlgorithm KeyEncryptionAlgorithmIdentifier,
+      encryptedKey EncryptedKey }
+
+  OTHER-RECIPIENT ::= TYPE-IDENTIFIER
+
+  OtherRecipientInfo ::= SEQUENCE {
+      oriType    OTHER-RECIPIENT.
+              &id({SupportedOtherRecipInfo}),
+      oriValue   OTHER-RECIPIENT.
+              &Type({SupportedOtherRecipInfo}{@oriType})}
+
+  SupportedOtherRecipInfo OTHER-RECIPIENT ::= { ... }
+
+  DigestedData ::= SEQUENCE {
+      version CMSVersion,
+      digestAlgorithm DigestAlgorithmIdentifier,
+      encapContentInfo EncapsulatedContentInfo,
+      digest Digest, ... }
+
+  Digest ::= OCTET STRING
+
+  EncryptedData ::= SEQUENCE {
+      version CMSVersion,
+      encryptedContentInfo EncryptedContentInfo,
+      ...,
+      [[2: unprotectedAttrs [1] IMPLICIT Attributes
+          {{UnprotectedAttributes}} OPTIONAL ]] }
+
+  AuthenticatedData ::= SEQUENCE {
+      version CMSVersion,
+      originatorInfo [0] IMPLICIT OriginatorInfo OPTIONAL,
+      recipientInfos RecipientInfos,
+      macAlgorithm MessageAuthenticationCodeAlgorithm,
+      digestAlgorithm [1] DigestAlgorithmIdentifier OPTIONAL,
+      encapContentInfo EncapsulatedContentInfo,
+      authAttrs [2] IMPLICIT AuthAttributes OPTIONAL,
+      mac MessageAuthenticationCode,
+      unauthAttrs [3] IMPLICIT UnauthAttributes OPTIONAL }
+
+  AuthAttributes ::= SET SIZE (1..MAX) OF Attribute
+      {{AuthAttributeSet}}
+
+  AuthAttributeSet ATTRIBUTE ::= { aa-contentType | aa-messageDigest
+                                       | aa-signingTime, ...}
+  MessageAuthenticationCode ::= OCTET STRING
+
+  UnauthAttributes ::= SET SIZE (1..MAX) OF Attribute
+      {{UnauthAttributeSet}}
+
+  UnauthAttributeSet ATTRIBUTE ::= {...}
+
+  --
+  --  General algorithm definitions
+  --
+
+  DigestAlgorithmIdentifier ::= AlgorithmIdentifier
+      {DIGEST-ALGORITHM, {DigestAlgorithmSet}}
+
+  DigestAlgorithmSet DIGEST-ALGORITHM ::= {
+      CryptographicMessageSyntaxAlgorithms-2009.MessageDigestAlgs, ... }
+
+  SignatureAlgorithmIdentifier ::= AlgorithmIdentifier
+      {SIGNATURE-ALGORITHM, {SignatureAlgorithmSet}}
+
+  SignatureAlgorithmSet SIGNATURE-ALGORITHM ::=
+      { SignatureAlgs, ... }
+
+  KeyEncryptionAlgorithmIdentifier ::= AlgorithmIdentifier
+      {KEY-WRAP, {KeyEncryptionAlgorithmSet}}
+
+  KeyEncryptionAlgorithmSet KEY-WRAP ::= { KeyWrapAlgs, ... }
+
+  ContentEncryptionAlgorithmIdentifier ::= AlgorithmIdentifier
+      {CONTENT-ENCRYPTION, {ContentEncryptionAlgorithmSet}}
+
+  ContentEncryptionAlgorithmSet CONTENT-ENCRYPTION ::=
+      { ContentEncryptionAlgs, ... }
+
+  MessageAuthenticationCodeAlgorithm ::= AlgorithmIdentifier
+      {MAC-ALGORITHM, {MessageAuthenticationCodeAlgorithmSet}}
+
+  MessageAuthenticationCodeAlgorithmSet MAC-ALGORITHM ::=
+      { MessageAuthAlgs, ... }
+
+  KeyDerivationAlgorithmIdentifier ::= AlgorithmIdentifier
+      {KEY-DERIVATION, {KeyDerivationAlgs, ...}}
+
+  RevocationInfoChoices ::= SET OF RevocationInfoChoice
+
+  RevocationInfoChoice ::= CHOICE {
+      crl CertificateList,
+      ...,
+      [[5: other [1] IMPLICIT OtherRevocationInfoFormat ]] }
+
+  OTHER-REVOK-INFO ::= TYPE-IDENTIFIER
+
+  OtherRevocationInfoFormat ::= SEQUENCE {
+      otherRevInfoFormat    OTHER-REVOK-INFO.
+              &id({SupportedOtherRevokInfo}),
+      otherRevInfo          OTHER-REVOK-INFO.
+              &Type({SupportedOtherRevokInfo}{@otherRevInfoFormat})}
+
+  SupportedOtherRevokInfo OTHER-REVOK-INFO ::= { ... }
+
+  CertificateChoices ::= CHOICE {
+      certificate Certificate,
+      extendedCertificate [0] IMPLICIT ExtendedCertificate,
+           -- Obsolete
+      ...,
+      [[3: v1AttrCert [1] IMPLICIT AttributeCertificateV1]],
+           -- Obsolete
+      [[4: v2AttrCert [2] IMPLICIT AttributeCertificateV2]],
+      [[5: other      [3] IMPLICIT OtherCertificateFormat]] }
+
+  AttributeCertificateV2 ::= AttributeCertificate
+
+  OTHER-CERT-FMT ::= TYPE-IDENTIFIER
+
+  OtherCertificateFormat ::= SEQUENCE {
+      otherCertFormat OTHER-CERT-FMT.
+              &id({SupportedCertFormats}),
+      otherCert       OTHER-CERT-FMT.
+              &Type({SupportedCertFormats}{@otherCertFormat})}
+
+  SupportedCertFormats OTHER-CERT-FMT ::= { ... }
+
+  CertificateSet ::= SET OF CertificateChoices
+
+  IssuerAndSerialNumber ::= SEQUENCE {
+      issuer Name,
+      serialNumber CertificateSerialNumber }
+
+  CMSVersion ::= INTEGER  { v0(0), v1(1), v2(2), v3(3), v4(4), v5(5) }
+
+  UserKeyingMaterial ::= OCTET STRING
+
+  KEY-ATTRIBUTE ::= TYPE-IDENTIFIER
+
+  OtherKeyAttribute ::= SEQUENCE {
+      keyAttrId  KEY-ATTRIBUTE.
+
+              &id({SupportedKeyAttributes}),
+      keyAttr    KEY-ATTRIBUTE.
+              &Type({SupportedKeyAttributes}{@keyAttrId})}
+
+  SupportedKeyAttributes KEY-ATTRIBUTE ::= { ... }
+
+  -- Content Type Object Identifiers
+
+  id-ct-contentInfo OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+     us(840) rsadsi(113549) pkcs(1) pkcs9(9) smime(16) ct(1) 6 }
+
+  ct-Data CONTENT-TYPE ::= {OCTET STRING IDENTIFIED BY id-data}
+
+  id-data OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+     us(840) rsadsi(113549) pkcs(1) pkcs7(7) 1 }
+
+  ct-SignedData CONTENT-TYPE ::=
+      { SignedData IDENTIFIED BY id-signedData}
+
+  id-signedData OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+     us(840) rsadsi(113549) pkcs(1) pkcs7(7) 2 }
+
+  ct-EnvelopedData CONTENT-TYPE ::=
+      { EnvelopedData IDENTIFIED BY id-envelopedData}
+
+  id-envelopedData OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+     us(840) rsadsi(113549) pkcs(1) pkcs7(7) 3 }
+
+  ct-DigestedData CONTENT-TYPE ::=
+      { DigestedData IDENTIFIED BY id-digestedData}
+
+  id-digestedData OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+     us(840) rsadsi(113549) pkcs(1) pkcs7(7) 5 }
+
+  ct-EncryptedData CONTENT-TYPE ::=
+      { EncryptedData IDENTIFIED BY id-encryptedData}
+
+  id-encryptedData OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+     us(840) rsadsi(113549) pkcs(1) pkcs7(7) 6 }
+
+  ct-AuthenticatedData CONTENT-TYPE ::=
+      { AuthenticatedData IDENTIFIED BY id-ct-authData}
+
+  id-ct-authData OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+     us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) ct(1) 2 }
+
+  --
+  -- The CMS Attributes
+  --
+
+  MessageDigest ::= OCTET STRING
+
+  SigningTime  ::= Time
+
+  Time ::= CHOICE {
+      utcTime UTCTime,
+      generalTime GeneralizedTime }
+
+  Countersignature ::= SignerInfo
+
+  -- Attribute Object Identifiers
+
+  aa-contentType ATTRIBUTE ::=
+      { TYPE ContentType IDENTIFIED BY id-contentType }
+  id-contentType OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+     us(840) rsadsi(113549) pkcs(1) pkcs9(9) 3 }
+
+  aa-messageDigest ATTRIBUTE ::=
+      { TYPE MessageDigest IDENTIFIED BY id-messageDigest}
+  id-messageDigest OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+     us(840) rsadsi(113549) pkcs(1) pkcs9(9) 4 }
+
+  aa-signingTime ATTRIBUTE ::=
+      { TYPE SigningTime IDENTIFIED BY id-signingTime }
+  id-signingTime OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+     us(840) rsadsi(113549) pkcs(1) pkcs9(9) 5 }
+
+  aa-countersignature ATTRIBUTE ::=
+      { TYPE Countersignature IDENTIFIED BY id-countersignature }
+  id-countersignature OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+     us(840) rsadsi(113549) pkcs(1) pkcs9(9) 6 }
+
+  --
+  -- Obsolete Extended Certificate syntax from PKCS#6
+  --
+
+  ExtendedCertificateOrCertificate ::= CHOICE {
+      certificate Certificate,
+      extendedCertificate [0] IMPLICIT ExtendedCertificate }
+
+  ExtendedCertificate ::= SEQUENCE {
+      extendedCertificateInfo ExtendedCertificateInfo,
+      signatureAlgorithm SignatureAlgorithmIdentifier,
+      signature Signature }
+
+  ExtendedCertificateInfo ::= SEQUENCE {
+      version CMSVersion,
+      certificate Certificate,
+      attributes UnauthAttributes }
+
+  Signature ::= BIT STRING
+
+  Attribute{ ATTRIBUTE:AttrList } ::= SEQUENCE {
+      attrType           ATTRIBUTE.
+              &id({AttrList}),
+      attrValues         SET OF ATTRIBUTE.
+              &Type({AttrList}{@attrType})  }
+
+  Attributes { ATTRIBUTE:AttrList } ::=
+      SET SIZE (1..MAX) OF Attribute {{ AttrList }}
+
+  END
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/CryptographicMessageSyntaxAlgorithms-2009.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/CryptographicMessageSyntaxAlgorithms-2009.asn1
new file mode 100644
index 0000000000..72e8b270db
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/CryptographicMessageSyntaxAlgorithms-2009.asn1
@@ -0,0 +1,248 @@
+   CryptographicMessageSyntaxAlgorithms-2009
+       { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9)
+       smime(16) modules(0) id-mod-cmsalg-2001-02(37) }
+   DEFINITIONS IMPLICIT TAGS ::=
+   BEGIN
+   IMPORTS
+
+   ParamOptions, DIGEST-ALGORITHM, SIGNATURE-ALGORITHM,
+      PUBLIC-KEY, KEY-DERIVATION, KEY-WRAP, MAC-ALGORITHM,
+      KEY-AGREE, KEY-TRANSPORT, CONTENT-ENCRYPTION, ALGORITHM,
+      AlgorithmIdentifier{}, SMIME-CAPS
+   FROM AlgorithmInformation-2009
+       {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+       mechanisms(5) pkix(7) id-mod(0)
+       id-mod-algorithmInformation-02(58)}
+
+   pk-rsa, pk-dh, pk-dsa, rsaEncryption, DHPublicKey, dhpublicnumber
+   FROM PKIXAlgs-2009
+        {iso(1) identified-organization(3) dod(6)
+        internet(1) security(5) mechanisms(5) pkix(7) id-mod(0)
+        id-mod-pkix1-algorithms2008-02(56)}
+
+   cap-RC2CBC
+   FROM SecureMimeMessageV3dot1-2009
+        {iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9)
+        smime(16) modules(0) id-mod-msg-v3dot1-02(39)};
+
+   --  2. Hash algorithms in this document
+
+   MessageDigestAlgs DIGEST-ALGORITHM ::= {
+   --   mda-md5 | mda-sha1,
+        ... }
+
+   --  3. Signature algorithms in this document
+
+   SignatureAlgs SIGNATURE-ALGORITHM ::= {
+   --  See RFC 3279
+   --  sa-dsaWithSHA1 |  sa-rsaWithMD5 | sa-rsaWithSHA1,
+       ... }
+
+   --  4.  Key Management Algorithms
+   --  4.1 Key Agreement Algorithms
+
+   KeyAgreementAlgs KEY-AGREE ::= { kaa-esdh | kaa-ssdh, ...}
+   KeyAgreePublicKeys PUBLIC-KEY ::= { pk-dh, ...}
+
+   --  4.2  Key Transport Algorithms
+
+   KeyTransportAlgs KEY-TRANSPORT ::= { kt-rsa, ... }
+
+   --  4.3  Symmetric Key-Encryption Key Algorithms
+
+   KeyWrapAlgs KEY-WRAP ::= { kwa-3DESWrap | kwa-RC2Wrap, ... }
+
+   --  4.4  Key Derivation Algorithms
+
+   KeyDerivationAlgs KEY-DERIVATION ::= { kda-PBKDF2, ... }
+
+   --  5.  Content Encryption Algorithms
+
+   ContentEncryptionAlgs CONTENT-ENCRYPTION ::=
+       { cea-3DES-cbc | cea-RC2-cbc, ... }
+
+   --  6.  Message Authentication Code Algorithms
+
+   MessageAuthAlgs MAC-ALGORITHM ::= { maca-hMAC-SHA1, ... }
+
+   --  S/MIME Capabilities for these items
+
+   SMimeCaps SMIME-CAPS ::= {
+       kaa-esdh.&smimeCaps         |
+       kaa-ssdh.&smimeCaps         |
+       kt-rsa.&smimeCaps           |
+       kwa-3DESWrap.&smimeCaps     |
+       kwa-RC2Wrap.&smimeCaps      |
+       cea-3DES-cbc.&smimeCaps     |
+       cea-RC2-cbc.&smimeCaps      |
+       maca-hMAC-SHA1.&smimeCaps,
+       ...}
+
+   --
+   --
+   --
+
+   -- Algorithm Identifiers
+
+   -- rsaEncryption OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+   --    us(840) rsadsi(113549) pkcs(1) pkcs-1(1) 1 }
+
+   id-alg-ESDH OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840)
+      rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) alg(3) 5 }
+
+   id-alg-SSDH OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840)
+      rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) alg(3) 10 }
+
+   id-alg-CMS3DESwrap OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+      us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) alg(3) 6 }
+
+   id-alg-CMSRC2wrap OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+      us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) alg(3) 7 }
+
+   des-ede3-cbc OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+      us(840) rsadsi(113549) encryptionAlgorithm(3) 7 }
+
+   rc2-cbc OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840)
+      rsadsi(113549) encryptionAlgorithm(3) 2 }
+
+   hMAC-SHA1 OBJECT IDENTIFIER ::= { iso(1) identified-organization(3)
+      dod(6) internet(1) security(5) mechanisms(5) 8 1 2 }
+
+   id-PBKDF2 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840)
+      rsadsi(113549) pkcs(1) pkcs-5(5) 12 }
+
+   -- Algorithm Identifier Parameter Types
+
+   KeyWrapAlgorithm ::=
+       AlgorithmIdentifier {KEY-WRAP, {KeyWrapAlgs }}
+
+   RC2wrapParameter ::= RC2ParameterVersion
+   RC2ParameterVersion ::= INTEGER
+
+   CBCParameter ::= IV
+
+   IV ::= OCTET STRING  -- exactly 8 octets
+
+   RC2CBCParameter ::= SEQUENCE {
+       rc2ParameterVersion INTEGER (1..256),
+       iv OCTET STRING  }  -- exactly 8 octets
+
+   maca-hMAC-SHA1 MAC-ALGORITHM ::= {
+       IDENTIFIER hMAC-SHA1
+       PARAMS TYPE NULL ARE preferredAbsent
+       IS-KEYED-MAC TRUE
+       SMIME-CAPS {IDENTIFIED BY hMAC-SHA1}
+   }
+
+   PBKDF2-PRFsAlgorithmIdentifier ::= AlgorithmIdentifier{ ALGORITHM,
+                                          {PBKDF2-PRFs} }
+
+   alg-hMAC-SHA1 ALGORITHM ::=
+       { IDENTIFIER hMAC-SHA1 PARAMS TYPE NULL ARE required }
+
+   PBKDF2-PRFs ALGORITHM ::= { alg-hMAC-SHA1, ... }
+
+   PBKDF2-SaltSources ALGORITHM ::= { ... }
+
+   PBKDF2-SaltSourcesAlgorithmIdentifier ::=
+       AlgorithmIdentifier {ALGORITHM, {PBKDF2-SaltSources}}
+
+   defaultPBKDF2 PBKDF2-PRFsAlgorithmIdentifier ::=
+       { algorithm alg-hMAC-SHA1.&id, parameters NULL:NULL }
+
+   PBKDF2-params ::= SEQUENCE {
+       salt CHOICE {
+           specified OCTET STRING,
+           otherSource PBKDF2-SaltSourcesAlgorithmIdentifier },
+       iterationCount INTEGER (1..MAX),
+       keyLength INTEGER (1..MAX) OPTIONAL,
+       prf PBKDF2-PRFsAlgorithmIdentifier DEFAULT
+               defaultPBKDF2
+           }
+
+   --
+   --  This object is included for completeness.  It should not be used
+   --      for encoding of signatures, but was sometimes used in older
+   --      versions of CMS for encoding of RSA signatures.
+   --
+   --
+   -- sa-rsa SIGNATURE-ALGORITHM ::= {
+   --         IDENTIFIER rsaEncryption
+   --         - - value is not ASN.1 encoded
+   --         PARAMS TYPE NULL ARE required
+   --         HASHES {mda-sha1 | mda-md5, ...}
+   --         PUBLIC-KEYS { pk-rsa}
+   -- }
+   --
+   -- No ASN.1 encoding is applied to the signature value
+   --    for these items
+
+   kaa-esdh KEY-AGREE ::= {
+        IDENTIFIER id-alg-ESDH
+        PARAMS TYPE KeyWrapAlgorithm ARE required
+        PUBLIC-KEYS { pk-dh }
+        -- UKM is not ASN.1 encoded
+        UKM ARE optional
+        SMIME-CAPS {TYPE KeyWrapAlgorithm IDENTIFIED BY id-alg-ESDH}
+   }
+
+   kaa-ssdh KEY-AGREE ::= {
+        IDENTIFIER id-alg-SSDH
+        PARAMS TYPE KeyWrapAlgorithm ARE required
+        PUBLIC-KEYS {pk-dh}
+        -- UKM is not ASN.1 encoded
+        UKM ARE optional
+        SMIME-CAPS {TYPE KeyWrapAlgorithm IDENTIFIED BY id-alg-SSDH}
+   }
+
+   dh-public-number OBJECT IDENTIFIER ::= dhpublicnumber
+
+   pk-originator-dh PUBLIC-KEY ::= {
+       IDENTIFIER dh-public-number
+       KEY DHPublicKey
+       PARAMS ARE absent
+       CERT-KEY-USAGE {keyAgreement, encipherOnly, decipherOnly}
+   }
+
+   kwa-3DESWrap KEY-WRAP ::= {
+        IDENTIFIER id-alg-CMS3DESwrap
+        PARAMS TYPE NULL ARE required
+        SMIME-CAPS {IDENTIFIED BY id-alg-CMS3DESwrap}
+   }
+
+   kwa-RC2Wrap KEY-WRAP ::= {
+        IDENTIFIER id-alg-CMSRC2wrap
+        PARAMS TYPE RC2wrapParameter ARE required
+        SMIME-CAPS { IDENTIFIED BY id-alg-CMSRC2wrap }
+   }
+
+   kda-PBKDF2 KEY-DERIVATION ::= {
+       IDENTIFIER id-PBKDF2
+       PARAMS TYPE PBKDF2-params ARE required
+       -- No S/MIME caps defined
+   }
+
+   cea-3DES-cbc CONTENT-ENCRYPTION ::= {
+       IDENTIFIER des-ede3-cbc
+       PARAMS TYPE IV ARE required
+       SMIME-CAPS { IDENTIFIED BY des-ede3-cbc }
+   }
+
+   cea-RC2-cbc CONTENT-ENCRYPTION ::= {
+       IDENTIFIER rc2-cbc
+       PARAMS TYPE RC2CBCParameter ARE required
+       SMIME-CAPS cap-RC2CBC
+   }
+
+   kt-rsa KEY-TRANSPORT ::= {
+       IDENTIFIER rsaEncryption
+       PARAMS TYPE NULL ARE required
+       PUBLIC-KEYS { pk-rsa }
+       SMIME-CAPS {IDENTIFIED BY rsaEncryption}
+   }
+
+   --  S/MIME Capabilities - most have no label.
+
+   cap-3DESwrap SMIME-CAPS ::= { IDENTIFIED BY id-alg-CMS3DESwrap }
+
+   END
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/DOR-definition.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/DOR-definition.asn1
index cd3330dc56..cd3330dc56 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/DOR-definition.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/DOR-definition.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/DSAOperationalAttributeTypes.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/DSAOperationalAttributeTypes.asn1
index df5e8489ea..df5e8489ea 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/DSAOperationalAttributeTypes.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/DSAOperationalAttributeTypes.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Default-Value-Lists.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Default-Value-Lists.asn1
index ef1187ba8c..ef1187ba8c 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Default-Value-Lists.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Default-Value-Lists.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/DirectoryAbstractService.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/DirectoryAbstractService.asn1
index 5a5d310729..5a5d310729 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/DirectoryAbstractService.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/DirectoryAbstractService.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/DirectoryAccessProtocol.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/DirectoryAccessProtocol.asn1
index 10d6979f6d..10d6979f6d 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/DirectoryAccessProtocol.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/DirectoryAccessProtocol.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/DirectoryInformationShadowProtocol.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/DirectoryInformationShadowProtocol.asn1
index 91c0a865f7..91c0a865f7 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/DirectoryInformationShadowProtocol.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/DirectoryInformationShadowProtocol.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/DirectoryOperationalBindingManagementProtocol.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/DirectoryOperationalBindingManagementProtocol.asn1
index e3e1f95621..e3e1f95621 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/DirectoryOperationalBindingManagementProtocol.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/DirectoryOperationalBindingManagementProtocol.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/DirectoryOperationalBindingTypes.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/DirectoryOperationalBindingTypes.asn1
index 9df5d2783a..9df5d2783a 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/DirectoryOperationalBindingTypes.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/DirectoryOperationalBindingTypes.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/DirectoryProtectionMappings.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/DirectoryProtectionMappings.asn1
index 37c6cac261..37c6cac261 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/DirectoryProtectionMappings.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/DirectoryProtectionMappings.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/DirectoryShadowAbstractService.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/DirectoryShadowAbstractService.asn1
index acbb692b6f..acbb692b6f 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/DirectoryShadowAbstractService.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/DirectoryShadowAbstractService.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/DirectorySystemProtocol.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/DirectorySystemProtocol.asn1
index cace79d109..cace79d109 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/DirectorySystemProtocol.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/DirectorySystemProtocol.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/DistributedOperations.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/DistributedOperations.asn1
index 72e791f10c..72e791f10c 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/DistributedOperations.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/DistributedOperations.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Document-Profile-Descriptor.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Document-Profile-Descriptor.asn1
index d8c15b7afa..d8c15b7afa 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Document-Profile-Descriptor.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Document-Profile-Descriptor.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/EnhancedSecurity.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/EnhancedSecurity.asn1
index 9991a59454..9991a59454 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/EnhancedSecurity.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/EnhancedSecurity.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/EnrollmentMessageSyntax-2009.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/EnrollmentMessageSyntax-2009.asn1
new file mode 100644
index 0000000000..17a45a0a6b
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/EnrollmentMessageSyntax-2009.asn1
@@ -0,0 +1,543 @@
+  EnrollmentMessageSyntax-2009
+      {iso(1) identified-organization(3) dod(6) internet(1)
+      security(5) mechanisms(5) pkix(7) id-mod(0) id-mod-cmc2002-02(53)}
+  DEFINITIONS IMPLICIT TAGS ::=
+  BEGIN
+  EXPORTS ALL;
+  IMPORTS
+
+  AttributeSet{}, Extension{}, EXTENSION, ATTRIBUTE
+  FROM PKIX-CommonTypes-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-pkixCommon-02(57)}
+  AlgorithmIdentifier{}, DIGEST-ALGORITHM, KEY-WRAP, KEY-DERIVATION,
+      MAC-ALGORITHM, SIGNATURE-ALGORITHM, PUBLIC-KEY
+  FROM AlgorithmInformation-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0)
+      id-mod-algorithmInformation-02(58)}
+
+  CertificateSerialNumber, GeneralName, CRLReason, ReasonFlags,
+      CertExtensions
+  FROM PKIX1Implicit-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-implicit-02(59)}
+
+  Name, id-pkix, PublicKeyAlgorithms, SignatureAlgorithms
+  FROM PKIX1Explicit-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-explicit-02(51)}
+
+  ContentInfo, IssuerAndSerialNumber, CONTENT-TYPE
+  FROM CryptographicMessageSyntax-2009
+      { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9)
+      smime(16) modules(0) id-mod-cms-2004-02(41)}
+
+  CertReqMsg, PKIPublicationInfo, CertTemplate
+  FROM PKIXCRMF-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-crmf2005-02(55)}
+
+  mda-sha1
+  FROM PKIXAlgs-2009
+       { iso(1) identified-organization(3) dod(6)
+       internet(1) security(5) mechanisms(5) pkix(7) id-mod(0)
+       id-mod-pkix1-algorithms2008-02(56)}
+
+  kda-PBKDF2, maca-hMAC-SHA1
+  FROM CryptographicMessageSyntaxAlgorithms-2009
+      { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9)
+      smime(16) modules(0) id-mod-cmsalg-2001-02(37) }
+
+  mda-sha256
+  FROM PKIX1-PSS-OAEP-Algorithms-2009
+       { iso(1) identified-organization(3) dod(6)
+         internet(1) security(5) mechanisms(5) pkix(7) id-mod(0)
+         id-mod-pkix1-rsa-pkalgs-02(54) } ;
+
+  --  CMS Content types defined in this document
+  CMC-ContentTypes CONTENT-TYPE ::= { ct-PKIData | ct-PKIResponse, ... }
+
+  --  Signature Algorithms defined in this document
+
+  SignatureAlgs SIGNATURE-ALGORITHM ::= { sa-noSignature }
+
+  --  CMS Unsigned Attributes
+
+  CMC-UnsignedAtts ATTRIBUTE ::= { aa-cmc-unsignedData }
+
+  --
+  --
+
+  id-cmc OBJECT IDENTIFIER ::= {id-pkix 7}   -- CMC controls
+  id-cct OBJECT IDENTIFIER ::= {id-pkix 12}  -- CMC content types
+
+  -- This is the content type for a request message in the protocol
+
+  ct-PKIData CONTENT-TYPE ::=
+      { PKIData IDENTIFIED BY id-cct-PKIData }
+  id-cct-PKIData OBJECT IDENTIFIER ::= { id-cct 2 }
+
+  PKIData ::= SEQUENCE {
+      controlSequence    SEQUENCE SIZE(0..MAX) OF TaggedAttribute,
+      reqSequence        SEQUENCE SIZE(0..MAX) OF TaggedRequest,
+      cmsSequence        SEQUENCE SIZE(0..MAX) OF TaggedContentInfo,
+      otherMsgSequence   SEQUENCE SIZE(0..MAX) OF OtherMsg
+  }
+
+  BodyPartID ::= INTEGER(0..4294967295)
+
+  TaggedAttribute ::= SEQUENCE {
+      bodyPartID         BodyPartID,
+      attrType           CMC-CONTROL.&id({Cmc-Control-Set}),
+      attrValues         SET OF CMC-CONTROL.
+                             &Type({Cmc-Control-Set}{@attrType})
+  }
+
+  Cmc-Control-Set CMC-CONTROL ::= {
+      cmc-identityProof | cmc-dataReturn | cmc-regInfo |
+      cmc-responseInfo | cmc-queryPending | cmc-popLinkRandom |
+      cmc-popLinkWitness | cmc-identification | cmc-transactionId |
+      cmc-senderNonce | cmc-recipientNonce | cmc-statusInfo |
+      cmc-addExtensions | cmc-encryptedPOP | cmc-decryptedPOP |
+      cmc-lraPOPWitness | cmc-getCert | cmc-getCRL |
+      cmc-revokeRequest | cmc-confirmCertAcceptance |
+      cmc-statusInfoV2 | cmc-trustedAnchors | cmc-authData |
+      cmc-batchRequests | cmc-batchResponses | cmc-publishCert |
+      cmc-modCertTemplate | cmc-controlProcessed |
+      cmc-identityProofV2 | cmc-popLinkWitnessV2, ... }
+
+  OTHER-REQUEST ::= TYPE-IDENTIFIER
+
+  --  We do not define any other requests in this document;
+  --     examples might be attribute certification requests
+
+  OtherRequests OTHER-REQUEST ::= {...}
+
+  TaggedRequest ::= CHOICE {
+      tcr               [0] TaggedCertificationRequest,
+      crm               [1] CertReqMsg,
+      orm               [2] SEQUENCE {
+          bodyPartID            BodyPartID,
+          requestMessageType    OTHER-REQUEST.&id({OtherRequests}),
+          requestMessageValue   OTHER-REQUEST.&Type({OtherRequests}
+                                    {@.requestMessageType})
+      }
+  }
+
+  TaggedCertificationRequest ::= SEQUENCE {
+      bodyPartID            BodyPartID,
+      certificationRequest  CertificationRequest
+  }
+
+  AttributeList ATTRIBUTE ::= {at-extension-req, ...}
+
+  CertificationRequest ::= SEQUENCE {
+     certificationRequestInfo  SEQUENCE {
+         version                   INTEGER,
+         subject                   Name,
+         subjectPublicKeyInfo      SEQUENCE {
+             algorithm                 AlgorithmIdentifier{PUBLIC-KEY,
+                                           {PublicKeyAlgorithms}},
+             subjectPublicKey          BIT STRING
+         },
+         attributes                [0] IMPLICIT SET OF
+                                       AttributeSet{{AttributeList}}
+      },
+      signatureAlgorithm        AlgorithmIdentifier
+                                    {SIGNATURE-ALGORITHM,
+                                        {SignatureAlgorithms}},
+      signature                 BIT STRING
+  }
+
+  TaggedContentInfo ::= SEQUENCE {
+      bodyPartID              BodyPartID,
+      contentInfo             ContentInfo
+  }
+
+  OTHER-MSG ::= TYPE-IDENTIFIER
+
+  --  No other messages currently defined
+
+  OtherMsgSet OTHER-MSG ::= {...}
+
+  OtherMsg ::= SEQUENCE {
+      bodyPartID        BodyPartID,
+      otherMsgType      OTHER-MSG.&id({OtherMsgSet}),
+      otherMsgValue     OTHER-MSG.&Type({OtherMsgSet}{@otherMsgType}) }
+
+  --  This defines the response message in the protocol
+
+  ct-PKIResponse CONTENT-TYPE ::=
+      { PKIResponse IDENTIFIED BY id-cct-PKIResponse }
+  id-cct-PKIResponse OBJECT IDENTIFIER ::= { id-cct 3 }
+
+  ResponseBody ::= PKIResponse
+
+  PKIResponse ::= SEQUENCE {
+      controlSequence   SEQUENCE SIZE(0..MAX) OF TaggedAttribute,
+      cmsSequence       SEQUENCE SIZE(0..MAX) OF TaggedContentInfo,
+      otherMsgSequence  SEQUENCE SIZE(0..MAX) OF OtherMsg
+  }
+
+  CMC-CONTROL ::= TYPE-IDENTIFIER
+
+  -- The following controls have the type OCTET STRING
+
+  cmc-identityProof CMC-CONTROL ::=
+      { OCTET STRING IDENTIFIED BY id-cmc-identityProof }
+  id-cmc-identityProof OBJECT IDENTIFIER ::= {id-cmc 3}
+
+  cmc-dataReturn CMC-CONTROL ::=
+      { OCTET STRING IDENTIFIED BY id-cmc-dataReturn }
+  id-cmc-dataReturn OBJECT IDENTIFIER ::= {id-cmc 4}
+
+  cmc-regInfo CMC-CONTROL ::=
+      { OCTET STRING IDENTIFIED BY id-cmc-regInfo }
+  id-cmc-regInfo OBJECT IDENTIFIER ::= {id-cmc 18}
+
+  cmc-responseInfo CMC-CONTROL ::=
+      { OCTET STRING IDENTIFIED BY id-cmc-responseInfo }
+  id-cmc-responseInfo OBJECT IDENTIFIER ::= {id-cmc 19}
+
+  cmc-queryPending CMC-CONTROL ::=
+      { OCTET STRING IDENTIFIED BY id-cmc-queryPending }
+  id-cmc-queryPending OBJECT IDENTIFIER ::= {id-cmc 21}
+
+  cmc-popLinkRandom CMC-CONTROL ::=
+      { OCTET STRING IDENTIFIED BY id-cmc-popLinkRandom }
+  id-cmc-popLinkRandom OBJECT IDENTIFIER ::= {id-cmc 22}
+
+  cmc-popLinkWitness CMC-CONTROL ::=
+      { OCTET STRING IDENTIFIED BY id-cmc-popLinkWitness }
+  id-cmc-popLinkWitness OBJECT IDENTIFIER ::= {id-cmc 23}
+
+  -- The following controls have the type UTF8String
+
+  cmc-identification CMC-CONTROL ::=
+      { UTF8String IDENTIFIED BY id-cmc-identification }
+  id-cmc-identification OBJECT IDENTIFIER ::= {id-cmc 2}
+
+  -- The following controls have the type INTEGER
+
+  cmc-transactionId CMC-CONTROL ::=
+      { INTEGER IDENTIFIED BY id-cmc-transactionId }
+  id-cmc-transactionId OBJECT IDENTIFIER ::= {id-cmc 5}
+
+  -- The following controls have the type OCTET STRING
+
+  cmc-senderNonce CMC-CONTROL ::=
+      { OCTET STRING IDENTIFIED BY id-cmc-senderNonce }
+
+  id-cmc-senderNonce OBJECT IDENTIFIER ::= {id-cmc 6}
+
+  cmc-recipientNonce CMC-CONTROL ::=
+      { OCTET STRING IDENTIFIED BY id-cmc-recipientNonce }
+  id-cmc-recipientNonce OBJECT IDENTIFIER ::= {id-cmc 7}
+
+  -- Used to return status in a response
+
+  cmc-statusInfo CMC-CONTROL ::=
+      { CMCStatusInfo IDENTIFIED BY id-cmc-statusInfo }
+  id-cmc-statusInfo OBJECT IDENTIFIER ::= {id-cmc 1}
+
+  CMCStatusInfo ::= SEQUENCE {
+      cMCStatus       CMCStatus,
+      bodyList        SEQUENCE SIZE (1..MAX) OF BodyPartID,
+      statusString    UTF8String OPTIONAL,
+      otherInfo       CHOICE {
+         failInfo         CMCFailInfo,
+         pendInfo         PendInfo
+      } OPTIONAL
+  }
+
+  PendInfo ::= SEQUENCE {
+      pendToken        OCTET STRING,
+      pendTime         GeneralizedTime
+  }
+
+  CMCStatus ::= INTEGER {
+      success         (0),
+      failed          (2),
+      pending         (3),
+      noSupport       (4),
+      confirmRequired (5),
+      popRequired     (6),
+      partial         (7)
+  }
+
+  -- Note:
+  -- The spelling of unsupportedExt is corrected in this version.
+  -- In RFC 2797, it was unsuportedExt.
+
+  CMCFailInfo ::= INTEGER {
+      badAlg          (0),
+      badMessageCheck (1),
+      badRequest      (2),
+      badTime         (3),
+      badCertId       (4),
+      unsuportedExt   (5),
+      mustArchiveKeys (6),
+      badIdentity     (7),
+      popRequired     (8),
+      popFailed       (9),
+      noKeyReuse      (10),
+      internalCAError (11),
+      tryLater        (12),
+      authDataFail    (13)
+  }
+
+  -- Used for RAs to add extensions to certification requests
+
+  cmc-addExtensions CMC-CONTROL ::=
+      { AddExtensions IDENTIFIED BY id-cmc-addExtensions }
+  id-cmc-addExtensions OBJECT IDENTIFIER ::= {id-cmc 8}
+
+  AddExtensions ::= SEQUENCE {
+      pkiDataReference    BodyPartID,
+      certReferences      SEQUENCE OF BodyPartID,
+      extensions          SEQUENCE OF Extension{{CertExtensions}}
+  }
+
+  cmc-encryptedPOP CMC-CONTROL ::=
+      { EncryptedPOP IDENTIFIED BY id-cmc-encryptedPOP }
+  cmc-decryptedPOP CMC-CONTROL ::=
+      { DecryptedPOP IDENTIFIED BY id-cmc-decryptedPOP }
+  id-cmc-encryptedPOP OBJECT IDENTIFIER ::= {id-cmc 9}
+  id-cmc-decryptedPOP OBJECT IDENTIFIER ::= {id-cmc 10}
+
+  EncryptedPOP ::= SEQUENCE {
+      request       TaggedRequest,
+      cms             ContentInfo,
+      thePOPAlgID     AlgorithmIdentifier{MAC-ALGORITHM, {POPAlgs}},
+      witnessAlgID    AlgorithmIdentifier{DIGEST-ALGORITHM,
+                          {WitnessAlgs}},
+      witness         OCTET STRING
+  }
+
+  POPAlgs MAC-ALGORITHM ::= {maca-hMAC-SHA1, ...}
+  WitnessAlgs DIGEST-ALGORITHM ::= {mda-sha1, ...}
+
+  DecryptedPOP ::= SEQUENCE {
+      bodyPartID      BodyPartID,
+      thePOPAlgID     AlgorithmIdentifier{MAC-ALGORITHM, {POPAlgs}},
+      thePOP          OCTET STRING
+  }
+
+  cmc-lraPOPWitness CMC-CONTROL ::=
+      { LraPopWitness IDENTIFIED BY id-cmc-lraPOPWitness }
+
+  id-cmc-lraPOPWitness OBJECT IDENTIFIER ::= {id-cmc 11}
+
+  LraPopWitness ::= SEQUENCE {
+      pkiDataBodyid   BodyPartID,
+      bodyIds         SEQUENCE OF BodyPartID
+  }
+
+  --
+
+  cmc-getCert CMC-CONTROL ::=
+      { GetCert IDENTIFIED BY id-cmc-getCert }
+  id-cmc-getCert OBJECT IDENTIFIER ::= {id-cmc 15}
+
+  GetCert ::= SEQUENCE {
+      issuerName      GeneralName,
+      serialNumber    INTEGER }
+
+  cmc-getCRL CMC-CONTROL ::=
+      { GetCRL IDENTIFIED BY id-cmc-getCRL }
+  id-cmc-getCRL OBJECT IDENTIFIER ::= {id-cmc 16}
+  GetCRL ::= SEQUENCE {
+      issuerName    Name,
+      cRLName       GeneralName OPTIONAL,
+      time          GeneralizedTime OPTIONAL,
+      reasons       ReasonFlags OPTIONAL }
+
+  cmc-revokeRequest CMC-CONTROL ::=
+      { RevokeRequest IDENTIFIED BY id-cmc-revokeRequest}
+  id-cmc-revokeRequest OBJECT IDENTIFIER ::= {id-cmc 17}
+
+  RevokeRequest ::= SEQUENCE {
+      issuerName            Name,
+      serialNumber          INTEGER,
+      reason                CRLReason,
+      invalidityDate         GeneralizedTime OPTIONAL,
+      passphrase            OCTET STRING OPTIONAL,
+      comment               UTF8String OPTIONAL }
+
+  cmc-confirmCertAcceptance CMC-CONTROL ::=
+      { CMCCertId IDENTIFIED BY id-cmc-confirmCertAcceptance }
+  id-cmc-confirmCertAcceptance OBJECT IDENTIFIER ::= {id-cmc 24}
+
+  CMCCertId ::= IssuerAndSerialNumber
+
+  -- The following is used to request v3 extensions be added
+  --     to a certificate
+
+  at-extension-req ATTRIBUTE ::=
+      { TYPE ExtensionReq IDENTIFIED BY id-ExtensionReq }
+  id-ExtensionReq OBJECT IDENTIFIER ::= {iso(1) member-body(2) us(840)
+      rsadsi(113549) pkcs(1) pkcs-9(9) 14}
+
+  ExtensionReq ::= SEQUENCE SIZE (1..MAX) OF
+      Extension{{CertExtensions}}
+
+  -- The following allows Diffie-Hellman Certification Request
+  --     Messages to be well-formed
+
+  sa-noSignature SIGNATURE-ALGORITHM ::= {
+      IDENTIFIER id-alg-noSignature
+      VALUE NoSignatureValue
+      PARAMS TYPE NULL ARE required
+      HASHES { mda-sha1 }
+  }
+  id-alg-noSignature OBJECT IDENTIFIER ::= {id-pkix id-alg(6) 2}
+
+  NoSignatureValue ::= OCTET STRING
+  --  Unauthenticated attribute to carry removable data.
+
+  id-aa OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840)
+      rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) id-aa(2)}
+
+  aa-cmc-unsignedData ATTRIBUTE ::=
+      { TYPE CMCUnsignedData IDENTIFIED BY id-aa-cmc-unsignedData }
+  id-aa-cmc-unsignedData OBJECT IDENTIFIER ::= {id-aa 34}
+
+  CMCUnsignedData ::= SEQUENCE {
+      bodyPartPath        BodyPartPath,
+      identifier          TYPE-IDENTIFIER.&id,
+      content             TYPE-IDENTIFIER.&Type
+  }
+
+  --  Replaces CMC Status Info
+  --
+
+  cmc-statusInfoV2 CMC-CONTROL ::=
+      { CMCStatusInfoV2 IDENTIFIED BY id-cmc-statusInfoV2 }
+  id-cmc-statusInfoV2 OBJECT IDENTIFIER ::= {id-cmc 25}
+
+  EXTENDED-FAILURE-INFO ::= TYPE-IDENTIFIER
+
+  ExtendedFailures EXTENDED-FAILURE-INFO ::= {...}
+
+  CMCStatusInfoV2 ::= SEQUENCE {
+     cMCStatus             CMCStatus,
+     bodyList              SEQUENCE SIZE (1..MAX) OF
+                                    BodyPartReference,
+     statusString          UTF8String OPTIONAL,
+     otherInfo             CHOICE {
+         failInfo               CMCFailInfo,
+         pendInfo               PendInfo,
+         extendedFailInfo       [1] SEQUENCE {
+            failInfoOID            TYPE-IDENTIFIER.&id
+                                       ({ExtendedFailures}),
+            failInfoValue          TYPE-IDENTIFIER.&Type
+                                       ({ExtendedFailures}
+                                           {@.failInfoOID})
+         }
+      } OPTIONAL
+  }
+
+  BodyPartReference ::= CHOICE {
+     bodyPartID           BodyPartID,
+     bodyPartPath         BodyPartPath
+  }
+
+  BodyPartPath ::= SEQUENCE SIZE (1..MAX) OF BodyPartID
+
+  --  Allow for distribution of trust anchors
+  --
+
+  cmc-trustedAnchors CMC-CONTROL ::=
+      { PublishTrustAnchors IDENTIFIED BY id-cmc-trustedAnchors }
+  id-cmc-trustedAnchors OBJECT IDENTIFIER ::= {id-cmc 26}
+
+  PublishTrustAnchors ::= SEQUENCE {
+      seqNumber      INTEGER,
+      hashAlgorithm  AlgorithmIdentifier{DIGEST-ALGORITHM,
+                         {HashAlgorithms}},
+      anchorHashes   SEQUENCE OF OCTET STRING
+  }
+
+  HashAlgorithms DIGEST-ALGORITHM ::= {
+     mda-sha1 | mda-sha256, ...
+  }
+
+  cmc-authData CMC-CONTROL ::=
+      { AuthPublish IDENTIFIED BY id-cmc-authData }
+  id-cmc-authData OBJECT IDENTIFIER ::= {id-cmc 27}
+
+  AuthPublish ::= BodyPartID
+
+  --   These two items use BodyPartList
+
+  cmc-batchRequests CMC-CONTROL ::=
+      { BodyPartList IDENTIFIED BY id-cmc-batchRequests }
+  id-cmc-batchRequests OBJECT IDENTIFIER ::= {id-cmc 28}
+
+  cmc-batchResponses CMC-CONTROL ::=
+      { BodyPartList IDENTIFIED BY id-cmc-batchResponses }
+  id-cmc-batchResponses OBJECT IDENTIFIER ::= {id-cmc 29}
+
+  BodyPartList ::= SEQUENCE SIZE (1..MAX) OF BodyPartID
+
+  cmc-publishCert CMC-CONTROL ::=
+      { CMCPublicationInfo IDENTIFIED BY id-cmc-publishCert }
+  id-cmc-publishCert OBJECT IDENTIFIER ::= {id-cmc 30}
+
+  CMCPublicationInfo ::= SEQUENCE {
+      hashAlg        AlgorithmIdentifier{DIGEST-ALGORITHM,
+                           {HashAlgorithms}},
+      certHashes     SEQUENCE OF OCTET STRING,
+      pubInfo        PKIPublicationInfo
+  }
+
+  cmc-modCertTemplate CMC-CONTROL ::=
+      { ModCertTemplate IDENTIFIED BY id-cmc-modCertTemplate }
+  id-cmc-modCertTemplate OBJECT IDENTIFIER ::= {id-cmc 31}
+
+  ModCertTemplate ::= SEQUENCE {
+      pkiDataReference             BodyPartPath,
+      certReferences               BodyPartList,
+      replace                      BOOLEAN DEFAULT TRUE,
+      certTemplate                 CertTemplate
+  }
+
+  -- Inform follow-on servers that one or more controls have
+  --     already been processed
+
+  cmc-controlProcessed CMC-CONTROL ::=
+      { ControlsProcessed IDENTIFIED BY id-cmc-controlProcessed }
+  id-cmc-controlProcessed OBJECT IDENTIFIER ::= {id-cmc 32}
+
+  ControlsProcessed ::= SEQUENCE {
+      bodyList              SEQUENCE SIZE(1..MAX) OF BodyPartReference
+  }
+
+  --  Identity Proof control w/ algorithm agility
+
+  cmc-identityProofV2 CMC-CONTROL ::=
+      { IdentityProofV2 IDENTIFIED BY id-cmc-identityProofV2 }
+  id-cmc-identityProofV2 OBJECT IDENTIFIER ::= { id-cmc 33 }
+
+  IdentityProofV2 ::= SEQUENCE {
+      proofAlgID       AlgorithmIdentifier{DIGEST-ALGORITHM,
+                           {WitnessAlgs}},
+      macAlgId         AlgorithmIdentifier{MAC-ALGORITHM, {POPAlgs}},
+      witness          OCTET STRING
+  }
+
+  cmc-popLinkWitnessV2 CMC-CONTROL ::=
+      { PopLinkWitnessV2 IDENTIFIED BY id-cmc-popLinkWitnessV2 }
+  id-cmc-popLinkWitnessV2 OBJECT IDENTIFIER ::= { id-cmc 34 }
+
+  PopLinkWitnessV2 ::= SEQUENCE {
+      keyGenAlgorithm   AlgorithmIdentifier{KEY-DERIVATION,
+                            {KeyDevAlgs}},
+      macAlgorithm      AlgorithmIdentifier{MAC-ALGORITHM, {POPAlgs}},
+      witness           OCTET STRING
+  }
+
+  KeyDevAlgs KEY-DERIVATION ::= {kda-PBKDF2, ...}
+
+  END
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/External-References.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/External-References.asn1
index 9a7d4936a6..9a7d4936a6 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/External-References.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/External-References.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/GULSProtectionMappings.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/GULSProtectionMappings.asn1
index 9b6a426ca2..9b6a426ca2 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/GULSProtectionMappings.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/GULSProtectionMappings.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/GenericProtectingTransferSyntax.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/GenericProtectingTransferSyntax.asn1
index c59451dcdb..c59451dcdb 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/GenericProtectingTransferSyntax.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/GenericProtectingTransferSyntax.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Geo-Gr-Coding-Attributes.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Geo-Gr-Coding-Attributes.asn1
index 60acbb3b5c..60acbb3b5c 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Geo-Gr-Coding-Attributes.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Geo-Gr-Coding-Attributes.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Geo-Gr-Presentation-Attributes.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Geo-Gr-Presentation-Attributes.asn1
index 84c1ee9851..84c1ee9851 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Geo-Gr-Presentation-Attributes.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Geo-Gr-Presentation-Attributes.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Geo-Gr-Profile-Attributes.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Geo-Gr-Profile-Attributes.asn1
index 28daa467e1..28daa467e1 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Geo-Gr-Profile-Attributes.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Geo-Gr-Profile-Attributes.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/GulsSecurityExchanges.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/GulsSecurityExchanges.asn1
index 336b824174..336b824174 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/GulsSecurityExchanges.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/GulsSecurityExchanges.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/GulsSecurityTransformations.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/GulsSecurityTransformations.asn1
index db2725c37d..db2725c37d 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/GulsSecurityTransformations.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/GulsSecurityTransformations.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/HierarchicalOperationalBindings.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/HierarchicalOperationalBindings.asn1
index 4e0084b079..4e0084b079 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/HierarchicalOperationalBindings.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/HierarchicalOperationalBindings.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/IPMSAbstractService.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSAbstractService.asn1
index 3fec8ae64a..3fec8ae64a 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/IPMSAbstractService.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSAbstractService.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/IPMSAutoActionTypes.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSAutoActionTypes.asn1
index 8c0c8138e2..8c0c8138e2 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/IPMSAutoActionTypes.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSAutoActionTypes.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/IPMSExtendedBodyPartTypes.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSExtendedBodyPartTypes.asn1
index 9805a6189d..9805a6189d 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/IPMSExtendedBodyPartTypes.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSExtendedBodyPartTypes.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/IPMSExtendedBodyPartTypes2.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSExtendedBodyPartTypes2.asn1
index b39e03c3b6..b39e03c3b6 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/IPMSExtendedBodyPartTypes2.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSExtendedBodyPartTypes2.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/IPMSExtendedVoiceBodyPartType.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSExtendedVoiceBodyPartType.asn1
index 171f4b4223..171f4b4223 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/IPMSExtendedVoiceBodyPartType.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSExtendedVoiceBodyPartType.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/IPMSFileTransferBodyPartType.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSFileTransferBodyPartType.asn1
index 59de6d1b04..59de6d1b04 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/IPMSFileTransferBodyPartType.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSFileTransferBodyPartType.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/IPMSForwardedContentBodyPartType.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSForwardedContentBodyPartType.asn1
index 57faac6587..57faac6587 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/IPMSForwardedContentBodyPartType.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSForwardedContentBodyPartType.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/IPMSForwardedReportBodyPartType.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSForwardedReportBodyPartType.asn1
index 4e46c7679b..4e46c7679b 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/IPMSForwardedReportBodyPartType.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSForwardedReportBodyPartType.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/IPMSFunctionalObjects.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSFunctionalObjects.asn1
index 09ef4de282..09ef4de282 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/IPMSFunctionalObjects.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSFunctionalObjects.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/IPMSHeadingExtensions.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSHeadingExtensions.asn1
index 752e8d05e1..752e8d05e1 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/IPMSHeadingExtensions.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSHeadingExtensions.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/IPMSInformationObjects.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSInformationObjects.asn1
index 3fb0463ee7..3fb0463ee7 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/IPMSInformationObjects.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSInformationObjects.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/IPMSMessageStoreAttributes.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSMessageStoreAttributes.asn1
index 719bca4987..719bca4987 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/IPMSMessageStoreAttributes.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSMessageStoreAttributes.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/IPMSObjectIdentifiers.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSObjectIdentifiers.asn1
index 6e5c01ab40..6e5c01ab40 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/IPMSObjectIdentifiers.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSObjectIdentifiers.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/IPMSObjectIdentifiers2.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSObjectIdentifiers2.asn1
index 2b46b27b3e..2b46b27b3e 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/IPMSObjectIdentifiers2.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSObjectIdentifiers2.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/IPMSSecurityExtensions.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSSecurityExtensions.asn1
index 8c692ccb31..8c692ccb31 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/IPMSSecurityExtensions.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSSecurityExtensions.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/IPMSUpperBounds.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSUpperBounds.asn1
index 27324f614f..27324f614f 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/IPMSUpperBounds.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/IPMSUpperBounds.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/ISO-STANDARD-9541-FONT-ATTRIBUTE-SET.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/ISO-STANDARD-9541-FONT-ATTRIBUTE-SET.asn1
index b7efd7417e..b7efd7417e 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/ISO-STANDARD-9541-FONT-ATTRIBUTE-SET.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/ISO-STANDARD-9541-FONT-ATTRIBUTE-SET.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/ISO8571-FTAM.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/ISO8571-FTAM.asn1
index a57a276704..a57a276704 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/ISO8571-FTAM.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/ISO8571-FTAM.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/ISO9541-SN.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/ISO9541-SN.asn1
index 0149602040..0149602040 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/ISO9541-SN.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/ISO9541-SN.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Identifiers-and-Expressions.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Identifiers-and-Expressions.asn1
index bd1d8d3c48..bd1d8d3c48 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Identifiers-and-Expressions.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Identifiers-and-Expressions.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/InformationFramework.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/InformationFramework.asn1
index 813ac9c6a0..813ac9c6a0 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/InformationFramework.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/InformationFramework.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Interchange-Data-Elements.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Interchange-Data-Elements.asn1
index 2c78360b7b..2c78360b7b 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Interchange-Data-Elements.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Interchange-Data-Elements.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Layout-Descriptors.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Layout-Descriptors.asn1
index 92c887bb06..92c887bb06 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Layout-Descriptors.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Layout-Descriptors.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Link-Descriptors.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Link-Descriptors.asn1
index 64fc4436e4..64fc4436e4 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Link-Descriptors.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Link-Descriptors.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Location-Expressions.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Location-Expressions.asn1
index 5de6491621..5de6491621 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Location-Expressions.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Location-Expressions.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Logical-Descriptors.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Logical-Descriptors.asn1
index fab36bf12a..fab36bf12a 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Logical-Descriptors.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Logical-Descriptors.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/MHSObjectIdentifiers.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/MHSObjectIdentifiers.asn1
index 187c3c8ad4..187c3c8ad4 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/MHSObjectIdentifiers.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/MHSObjectIdentifiers.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/MHSProtocolObjectIdentifiers.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/MHSProtocolObjectIdentifiers.asn1
index 40f53b9458..40f53b9458 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/MHSProtocolObjectIdentifiers.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/MHSProtocolObjectIdentifiers.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/MSAbstractService.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/MSAbstractService.asn1
index 052b3b2041..052b3b2041 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/MSAbstractService.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/MSAbstractService.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/MSAccessProtocol.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/MSAccessProtocol.asn1
index b69d72b3ed..b69d72b3ed 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/MSAccessProtocol.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/MSAccessProtocol.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/MSGeneralAttributeTypes.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/MSGeneralAttributeTypes.asn1
index 99d34b2883..99d34b2883 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/MSGeneralAttributeTypes.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/MSGeneralAttributeTypes.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/MSGeneralAutoActionTypes.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/MSGeneralAutoActionTypes.asn1
index eceae4ab44..eceae4ab44 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/MSGeneralAutoActionTypes.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/MSGeneralAutoActionTypes.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/MSMatchingRules.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/MSMatchingRules.asn1
index 37c894da86..37c894da86 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/MSMatchingRules.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/MSMatchingRules.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/MSObjectIdentifiers.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/MSObjectIdentifiers.asn1
index df194f838c..df194f838c 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/MSObjectIdentifiers.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/MSObjectIdentifiers.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/MSUpperBounds.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/MSUpperBounds.asn1
index 6494fbd3ef..6494fbd3ef 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/MSUpperBounds.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/MSUpperBounds.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/MTAAbstractService.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/MTAAbstractService.asn1
index 38035c77ae..38035c77ae 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/MTAAbstractService.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/MTAAbstractService.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/MTSAbstractService.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/MTSAbstractService.asn1
index 68a5118bc8..68a5118bc8 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/MTSAbstractService.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/MTSAbstractService.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/MTSAbstractService88.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/MTSAbstractService88.asn1
index f66d117f35..f66d117f35 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/MTSAbstractService88.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/MTSAbstractService88.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/MTSAccessProtocol.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/MTSAccessProtocol.asn1
index 03181c5951..03181c5951 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/MTSAccessProtocol.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/MTSAccessProtocol.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/MTSObjectIdentifiers.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/MTSObjectIdentifiers.asn1
index 1615b241ee..1615b241ee 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/MTSObjectIdentifiers.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/MTSObjectIdentifiers.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/MTSUpperBounds.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/MTSUpperBounds.asn1
index 10eac962cb..10eac962cb 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/MTSUpperBounds.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/MTSUpperBounds.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Notation.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Notation.asn1
index 96dfc39b6a..96dfc39b6a 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Notation.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Notation.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/OCSP-2009.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/OCSP-2009.asn1
new file mode 100644
index 0000000000..db500fe9a1
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/OCSP-2009.asn1
@@ -0,0 +1,183 @@
+  OCSP-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-ocsp-02(48)}
+  DEFINITIONS EXPLICIT TAGS ::=
+  BEGIN
+  IMPORTS
+
+  Extensions{}, EXTENSION, ATTRIBUTE
+  FROM PKIX-CommonTypes-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-pkixCommon-02(57)}
+
+  AlgorithmIdentifier{}, DIGEST-ALGORITHM, SIGNATURE-ALGORITHM
+  FROM AlgorithmInformation-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0)
+      id-mod-algorithmInformation-02(58)}
+
+  AuthorityInfoAccessSyntax, GeneralName, CrlEntryExtensions
+  FROM PKIX1Implicit-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-implicit-02(59)}
+
+  Name, CertificateSerialNumber, id-kp, id-ad-ocsp, Certificate
+  FROM PKIX1Explicit-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-explicit-02(51)}
+
+  sa-dsaWithSHA1, sa-rsaWithMD2, sa-rsaWithMD5, sa-rsaWithSHA1
+  FROM PKIXAlgs-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0)
+      id-mod-pkix1-algorithms2008-02(56)};
+
+  OCSPRequest     ::=     SEQUENCE {
+      tbsRequest                  TBSRequest,
+      optionalSignature   [0]     EXPLICIT Signature OPTIONAL }
+
+  TBSRequest      ::=     SEQUENCE {
+      version             [0] EXPLICIT Version DEFAULT v1,
+      requestorName       [1] EXPLICIT GeneralName OPTIONAL,
+      requestList             SEQUENCE OF Request,
+      requestExtensions   [2] EXPLICIT Extensions {{re-ocsp-nonce |
+                                  re-ocsp-response, ...}} OPTIONAL }
+
+  Signature       ::=     SEQUENCE {
+      signatureAlgorithm   AlgorithmIdentifier
+                               { SIGNATURE-ALGORITHM, {...}},
+      signature            BIT STRING,
+      certs            [0] EXPLICIT SEQUENCE OF Certificate OPTIONAL }
+
+  Version  ::=  INTEGER  {  v1(0) }
+
+  Request ::=     SEQUENCE {
+      reqCert                    CertID,
+      singleRequestExtensions    [0] EXPLICIT Extensions
+                                         { {re-ocsp-service-locator,
+                                                ...}} OPTIONAL }
+
+  CertID ::= SEQUENCE {
+      hashAlgorithm            AlgorithmIdentifier
+                                   {DIGEST-ALGORITHM, {...}},
+      issuerNameHash     OCTET STRING, -- Hash of Issuer's DN
+      issuerKeyHash      OCTET STRING, -- Hash of Issuer's public key
+      serialNumber       CertificateSerialNumber }
+
+  OCSPResponse ::= SEQUENCE {
+     responseStatus         OCSPResponseStatus,
+     responseBytes          [0] EXPLICIT ResponseBytes OPTIONAL }
+
+  OCSPResponseStatus ::= ENUMERATED {
+      successful            (0), --Response has valid confirmations
+      malformedRequest      (1), --Illegal confirmation request
+      internalError         (2), --Internal error in issuer
+      tryLater              (3), --Try again later
+                                 -- (4) is not used
+      sigRequired           (5), --Must sign the request
+      unauthorized          (6)  --Request unauthorized
+  }
+
+  RESPONSE ::= TYPE-IDENTIFIER
+
+  ResponseSet RESPONSE ::= {basicResponse, ...}
+
+  ResponseBytes ::=       SEQUENCE {
+      responseType        RESPONSE.
+                              &id ({ResponseSet}),
+      response            OCTET STRING (CONTAINING RESPONSE.
+                              &Type({ResponseSet}{@responseType}))}
+
+  basicResponse RESPONSE ::=
+      { BasicOCSPResponse IDENTIFIED BY id-pkix-ocsp-basic }
+
+  BasicOCSPResponse       ::= SEQUENCE {
+     tbsResponseData      ResponseData,
+     signatureAlgorithm   AlgorithmIdentifier{SIGNATURE-ALGORITHM,
+                              {sa-dsaWithSHA1 | sa-rsaWithSHA1 |
+                                   sa-rsaWithMD5 | sa-rsaWithMD2, ...}},
+     signature            BIT STRING,
+     certs            [0] EXPLICIT SEQUENCE OF Certificate OPTIONAL }
+
+  ResponseData ::= SEQUENCE {
+     version              [0] EXPLICIT Version DEFAULT v1,
+     responderID              ResponderID,
+     producedAt               GeneralizedTime,
+     responses                SEQUENCE OF SingleResponse,
+     responseExtensions   [1] EXPLICIT Extensions
+                                  {{re-ocsp-nonce, ...}} OPTIONAL }
+
+  ResponderID ::= CHOICE {
+     byName   [1] Name,
+     byKey    [2] KeyHash }
+
+  KeyHash ::= OCTET STRING --SHA-1 hash of responder's public key
+                           -- (excluding the tag and length fields)
+
+  SingleResponse ::= SEQUENCE {
+     certID                       CertID,
+     certStatus                   CertStatus,
+     thisUpdate                   GeneralizedTime,
+     nextUpdate           [0]     EXPLICIT GeneralizedTime OPTIONAL,
+     singleExtensions     [1]     EXPLICIT Extensions{{re-ocsp-crl |
+                                               re-ocsp-archive-cutoff |
+                                                CrlEntryExtensions, ...}
+                                               } OPTIONAL }
+
+  CertStatus ::= CHOICE {
+      good                [0]     IMPLICIT NULL,
+      revoked             [1]     IMPLICIT RevokedInfo,
+      unknown             [2]     IMPLICIT UnknownInfo }
+
+  RevokedInfo ::= SEQUENCE {
+      revocationTime              GeneralizedTime,
+      revocationReason    [0]     EXPLICIT CRLReason OPTIONAL }
+
+  UnknownInfo ::= NULL
+
+  CRLReason ::= INTEGER
+
+  ArchiveCutoff ::= GeneralizedTime
+
+  AcceptableResponses ::= SEQUENCE OF RESPONSE.&id({ResponseSet})
+
+  ServiceLocator ::= SEQUENCE {
+      issuer    Name,
+      locator   AuthorityInfoAccessSyntax }
+
+  CrlID ::= SEQUENCE {
+      crlUrl               [0]     EXPLICIT IA5String OPTIONAL,
+      crlNum               [1]     EXPLICIT INTEGER OPTIONAL,
+      crlTime              [2]     EXPLICIT GeneralizedTime OPTIONAL }
+
+  --  Request Extensions
+
+  re-ocsp-nonce EXTENSION ::= { SYNTAX OCTET STRING IDENTIFIED
+                                    BY id-pkix-ocsp-nonce }
+  re-ocsp-response EXTENSION ::= { SYNTAX AcceptableResponses IDENTIFIED
+                                       BY id-pkix-ocsp-response }
+  re-ocsp-service-locator EXTENSION ::= { SYNTAX ServiceLocator
+                                          IDENTIFIED BY
+                                          id-pkix-ocsp-service-locator }
+
+  --  Response Extensions
+
+  re-ocsp-crl EXTENSION ::= { SYNTAX CrlID IDENTIFIED BY
+                                  id-pkix-ocsp-crl }
+  re-ocsp-archive-cutoff EXTENSION ::= { SYNTAX ArchiveCutoff
+                                         IDENTIFIED BY
+                                         id-pkix-ocsp-archive-cutoff }
+
+  -- Object Identifiers
+
+  id-kp-OCSPSigning            OBJECT IDENTIFIER ::= { id-kp 9 }
+  id-pkix-ocsp                 OBJECT IDENTIFIER ::= id-ad-ocsp
+  id-pkix-ocsp-basic           OBJECT IDENTIFIER ::= { id-pkix-ocsp 1 }
+  id-pkix-ocsp-nonce           OBJECT IDENTIFIER ::= { id-pkix-ocsp 2 }
+  id-pkix-ocsp-crl             OBJECT IDENTIFIER ::= { id-pkix-ocsp 3 }
+  id-pkix-ocsp-response        OBJECT IDENTIFIER ::= { id-pkix-ocsp 4 }
+  id-pkix-ocsp-nocheck         OBJECT IDENTIFIER ::= { id-pkix-ocsp 5 }
+  id-pkix-ocsp-archive-cutoff  OBJECT IDENTIFIER ::= { id-pkix-ocsp 6 }
+  id-pkix-ocsp-service-locator OBJECT IDENTIFIER ::= { id-pkix-ocsp 7 }
+
+  END
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/PKCS7.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/OLD-PKCS7.asn1
index ac449b59c7..ab555200bb 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/PKCS7.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/OLD-PKCS7.asn1
@@ -3,7 +3,7 @@
 -- This Annex contains a module of PKCS#7 ASN.1 definitions conforming to current ASN.1 standards rather than the obsolescent (and now deprecated) 1988/90 version of ASN.1 used in version 1.5 of PKCS#7.
 -- Extensions to PKCS#7 defined in RFC 2630 are included.
 -- If differences are found between the ASN.1 in the following module and that in PKCS#7, the latter is definitive.
-PKCS7 {iso member-body usa(840) rsadsi(113549) pkcs(1) 7
+OLD-PKCS7 {iso member-body usa(840) rsadsi(113549) pkcs(1) 7
   module(0) -- module not currently defined in PKCS#7 --} DEFINITIONS IMPLICIT
 TAGS ::=
 BEGIN
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/ObjectIdentifiers.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/ObjectIdentifiers.asn1
index b4f91f50c5..b4f91f50c5 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/ObjectIdentifiers.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/ObjectIdentifiers.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/OperationalBindingManagement.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/OperationalBindingManagement.asn1
index 2044feb155..2044feb155 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/OperationalBindingManagement.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/OperationalBindingManagement.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/PKCS-10.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/PKCS-10.asn1
new file mode 100644
index 0000000000..a5fd0fefb9
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/PKCS-10.asn1
@@ -0,0 +1,56 @@
+  PKCS-10
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+        mechanisms(5) pkix(7) id-mod(0) id-mod-pkcs10-2009(69)}
+  DEFINITIONS IMPLICIT TAGS ::=
+  BEGIN
+  IMPORTS
+
+  AlgorithmIdentifier{}, DIGEST-ALGORITHM, SIGNATURE-ALGORITHM,
+      PUBLIC-KEY
+  FROM AlgorithmInformation-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0)
+      id-mod-algorithmInformation-02(58)}
+
+  ATTRIBUTE, Name
+  FROM PKIX1Explicit-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-explicit-02(51)};
+
+  -- Certificate requests
+  CertificationRequestInfo ::= SEQUENCE {
+      version       INTEGER { v1(0) } (v1, ... ),
+      subject       Name,
+      subjectPKInfo SubjectPublicKeyInfo{{ PKInfoAlgorithms }},
+      attributes    [0] Attributes{{ CRIAttributes }}
+  }
+
+  SubjectPublicKeyInfo {PUBLIC-KEY: IOSet} ::= SEQUENCE {
+      algorithm        AlgorithmIdentifier {PUBLIC-KEY, {IOSet}},
+      subjectPublicKey BIT STRING
+  }
+
+  PKInfoAlgorithms PUBLIC-KEY ::= {
+      ... -- add any locally defined algorithms here -- }
+
+  Attributes { ATTRIBUTE:IOSet } ::= SET OF Attribute{{ IOSet }}
+
+  CRIAttributes  ATTRIBUTE  ::= {
+      ... -- add any locally defined attributes here -- }
+
+  Attribute { ATTRIBUTE:IOSet } ::= SEQUENCE {
+      type   ATTRIBUTE.&id({IOSet}),
+      values SET SIZE(1..MAX) OF ATTRIBUTE.&Type({IOSet}{@type})
+  }
+
+  CertificationRequest ::= SEQUENCE {
+      certificationRequestInfo  CertificationRequestInfo,
+      signatureAlgorithm        AlgorithmIdentifier{SIGNATURE-ALGORITHM,
+                                    { SignatureAlgorithms }},
+      signature                 BIT STRING
+  }
+
+  SignatureAlgorithms SIGNATURE-ALGORITHM ::= {
+      ... -- add any locally defined algorithms here -- }
+
+  END
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/PKCS-12.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/PKCS-12.asn1
new file mode 100644
index 0000000000..5b37a552f9
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/PKCS-12.asn1
@@ -0,0 +1,174 @@
+PKCS-12 {iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1)
+                 pkcs-12(12) modules(0)  pkcs-12(1)}
+
+-- $Revision$
+
+DEFINITIONS IMPLICIT TAGS ::=
+
+BEGIN
+
+-- EXPORTS ALL
+-- All types and values defined in this module is exported for use in
+-- other ASN.1 modules.
+
+IMPORTS
+
+informationFramework
+        FROM UsefulDefinitions {joint-iso-itu-t(2) ds(5) module(1)
+        usefulDefinitions(0) 3}
+
+ATTRIBUTE
+	FROM InformationFramework informationFramework
+
+ContentInfo, DigestInfo
+	FROM PKCS-7 {iso(1) member-body(2) us(840) rsadsi(113549)
+	pkcs(1) pkcs-7(7) modules(0) pkcs-7(1)}
+
+PrivateKeyInfo, EncryptedPrivateKeyInfo
+	FROM PKCS-8 {iso(1) member-body(2) us(840) rsadsi(113549)
+	pkcs(1) pkcs-8(8) modules(1) pkcs-8(1)}
+
+pkcs-9, friendlyName, localKeyId, certTypes, crlTypes
+	FROM PKCS-9 {iso(1) member-body(2) us(840) rsadsi(113549)
+	pkcs(1) pkcs-9(9) modules(0) pkcs-9(1)};
+
+-- Object identifiers
+
+rsadsi	OBJECT IDENTIFIER ::= {iso(1) member-body(2) us(840) rsadsi(113549)}
+pkcs    OBJECT IDENTIFIER ::= {rsadsi pkcs(1)}
+pkcs-12	OBJECT IDENTIFIER ::= {pkcs 12}
+pkcs-12PbeIds                  	OBJECT IDENTIFIER ::= {pkcs-12 1}
+pbeWithSHAAnd128BitRC4          OBJECT IDENTIFIER ::= {pkcs-12PbeIds 1}
+pbeWithSHAAnd40BitRC4           OBJECT IDENTIFIER ::= {pkcs-12PbeIds 2}
+pbeWithSHAAnd3-KeyTripleDES-CBC	OBJECT IDENTIFIER ::= {pkcs-12PbeIds 3}
+pbeWithSHAAnd2-KeyTripleDES-CBC	OBJECT IDENTIFIER ::= {pkcs-12PbeIds 4}
+pbeWithSHAAnd128BitRC2-CBC      OBJECT IDENTIFIER ::= {pkcs-12PbeIds 5}
+pbewithSHAAnd40BitRC2-CBC       OBJECT IDENTIFIER ::= {pkcs-12PbeIds 6}
+
+bagtypes			OBJECT IDENTIFIER ::= {pkcs-12 10 1}
+
+-- The PFX PDU
+
+PFX ::= SEQUENCE {
+	version		INTEGER {v3(3)}(v3,...),
+	authSafe	ContentInfo,
+	macData    	MacData OPTIONAL
+}
+
+MacData ::= SEQUENCE {
+	mac 		DigestInfo,
+	macSalt	        OCTET STRING,
+	iterations	INTEGER DEFAULT 1
+-- Note: The default is for historical reasons and its use is
+-- deprecated. A higher value, like 1024 is recommended.
+}
+
+AuthenticatedSafe ::= SEQUENCE OF ContentInfo
+	-- Data if unencrypted
+	-- EncryptedData if password-encrypted
+	-- EnvelopedData if public key-encrypted
+
+SafeContents ::= SEQUENCE OF SafeBag
+
+SafeBag ::= SEQUENCE {
+	bagId	      	BAG-TYPE.&id ({PKCS12BagSet}),
+	bagValue      	[0] EXPLICIT BAG-TYPE.&Type({PKCS12BagSet}{@bagId}),
+	bagAttributes 	SET OF PKCS12Attribute OPTIONAL
+}
+
+-- Bag types
+
+keyBag 	  BAG-TYPE ::=
+	{KeyBag IDENTIFIED BY {bagtypes 1}}
+pkcs8ShroudedKeyBag BAG-TYPE ::=
+	{PKCS8ShroudedKeyBag IDENTIFIED BY {bagtypes 2}}
+certBag BAG-TYPE ::=
+	{CertBag IDENTIFIED BY {bagtypes 3}}
+crlBag BAG-TYPE ::=
+	{CRLBag IDENTIFIED BY {bagtypes 4}}
+secretBag BAG-TYPE ::=
+	{SecretBag IDENTIFIED BY {bagtypes 5}}
+safeContentsBag BAG-TYPE ::=
+	{SafeContents IDENTIFIED BY {bagtypes 6}}
+
+PKCS12BagSet BAG-TYPE ::= {
+	keyBag |
+	pkcs8ShroudedKeyBag |
+	certBag |
+	crlBag |
+	secretBag |
+	safeContentsBag,
+	... -- For future extensions
+}
+
+BAG-TYPE ::= TYPE-IDENTIFIER
+
+-- KeyBag
+
+KeyBag ::= PrivateKeyInfo
+
+-- Shrouded KeyBag
+
+PKCS8ShroudedKeyBag ::= EncryptedPrivateKeyInfo
+
+-- CertBag
+
+CertBag ::= SEQUENCE {
+	certId    BAG-TYPE.&id   ({CertTypes}),
+	certValue [0] EXPLICIT BAG-TYPE.&Type ({CertTypes}{@certId})
+}
+
+x509Certificate BAG-TYPE ::=
+	{OCTET STRING IDENTIFIED BY {certTypes 1}}
+	-- DER-encoded X.509 certificate stored in OCTET STRING
+sdsiCertificate BAG-TYPE ::=
+	{IA5String IDENTIFIED BY {certTypes 2}}
+	-- Base64-encoded SDSI certificate stored in IA5String
+
+CertTypes BAG-TYPE ::= {
+	x509Certificate |
+	sdsiCertificate,
+	... -- For future extensions
+}
+
+-- CRLBag
+
+CRLBag ::= SEQUENCE {
+	crlId     	BAG-TYPE.&id ({CRLTypes}),
+	crlValue 	[0] EXPLICIT BAG-TYPE.&Type ({CRLTypes}{@crlId})
+}
+
+x509CRL BAG-TYPE ::=
+	{OCTET STRING IDENTIFIED BY {crlTypes 1}}
+	-- DER-encoded X.509 CRL stored in OCTET STRING
+
+CRLTypes BAG-TYPE ::= {
+	x509CRL,
+	... -- For future extensions
+}
+
+-- Secret Bag
+
+SecretBag ::= SEQUENCE {
+	secretTypeId BAG-TYPE.&id ({SecretTypes}),
+	secretValue  [0] EXPLICIT BAG-TYPE.&Type ({SecretTypes}{@secretTypeId})
+}
+
+SecretTypes BAG-TYPE ::= {
+	... -- For future extensions
+}
+
+-- Attributes
+
+PKCS12Attribute ::= SEQUENCE {
+	attrId	   	ATTRIBUTE.&id ({PKCS12AttrSet}),
+	attrValues 	SET OF ATTRIBUTE.&Type ({PKCS12AttrSet}{@attrId})
+} -- This type is compatible with the X.500 type 'Attribute'
+
+PKCS12AttrSet ATTRIBUTE ::= {
+	friendlyName |
+	localKeyId,
+	... -- Other attributes are allowed
+}
+
+END
\ No newline at end of file
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/PKCS-5.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/PKCS-5.asn1
new file mode 100644
index 0000000000..91b0dc36bf
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/PKCS-5.asn1
@@ -0,0 +1,202 @@
+-- PKCS #5 v2.1 ASN.1 Module
+-- Revised October 27, 2012
+
+-- This module has been checked for conformance with the
+-- ASN.1 standard by the OSS ASN.1 Tools
+
+PKCS-5 {
+    iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-5(5) modules(16)
+	pkcs5v2-1(2)}
+
+DEFINITIONS EXPLICIT TAGS ::=
+
+BEGIN
+
+-- ============================
+--   Basic object identifiers
+-- ============================
+
+nistAlgorithms OBJECT IDENTIFIER ::=
+  {joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) 4}
+oiw    OBJECT IDENTIFIER ::= {iso(1) identified-organization(3) 14}
+rsadsi OBJECT IDENTIFIER ::= {iso(1) member-body(2) us(840) 113549}
+pkcs   OBJECT IDENTIFIER ::= {rsadsi 1}
+pkcs-5 OBJECT IDENTIFIER ::= {pkcs 5}
+
+
+-- ============================
+-- Basic types and classes
+-- ============================
+
+AlgorithmIdentifier { ALGORITHM-IDENTIFIER:InfoObjectSet } ::= SEQUENCE {
+  algorithm ALGORITHM-IDENTIFIER.&id({InfoObjectSet}),
+  parameters ALGORITHM-IDENTIFIER.&Type({InfoObjectSet} {@algorithm}) OPTIONAL
+}
+
+ALGORITHM-IDENTIFIER ::= TYPE-IDENTIFIER
+
+
+-- ============================
+-- PBKDF2
+-- ============================
+
+PBKDF2Algorithms ALGORITHM-IDENTIFIER ::=
+  { {PBKDF2-params IDENTIFIED BY id-PBKDF2}, ...}
+
+id-PBKDF2 OBJECT IDENTIFIER ::= {pkcs-5 12}
+
+algid-hmacWithSHA1 AlgorithmIdentifier {{PBKDF2-PRFs}} ::=
+  {algorithm id-hmacWithSHA1, parameters NULL : NULL}
+
+PBKDF2-params ::= SEQUENCE {
+  salt CHOICE {
+    specified OCTET STRING,
+    otherSource AlgorithmIdentifier {{PBKDF2-SaltSources}}
+  },
+  iterationCount INTEGER (1..MAX),
+  keyLength INTEGER (1..MAX) OPTIONAL,
+  prf AlgorithmIdentifier {{PBKDF2-PRFs}} DEFAULT algid-hmacWithSHA1
+}
+
+PBKDF2-SaltSources ALGORITHM-IDENTIFIER ::= { ... }
+
+PBKDF2-PRFs ALGORITHM-IDENTIFIER ::= {
+  {NULL IDENTIFIED BY id-hmacWithSHA1}       |
+  {NULL IDENTIFIED BY id-hmacWithSHA224}     |
+  {NULL IDENTIFIED BY id-hmacWithSHA256}     |
+  {NULL IDENTIFIED BY id-hmacWithSHA384}     |
+  {NULL IDENTIFIED BY id-hmacWithSHA512}     |
+  {NULL IDENTIFIED BY id-hmacWithSHA512-224} |
+  {NULL IDENTIFIED BY id-hmacWithSHA512-256},
+   ...
+}
+
+
+-- ============================
+ -- PBES1
+-- ============================
+
+PBES1Algorithms ALGORITHM-IDENTIFIER ::= {
+  {PBEParameter IDENTIFIED BY pbeWithMD2AndDES-CBC}  |
+  {PBEParameter IDENTIFIED BY pbeWithMD2AndRC2-CBC}  |
+  {PBEParameter IDENTIFIED BY pbeWithMD5AndDES-CBC}  |
+  {PBEParameter IDENTIFIED BY pbeWithMD5AndRC2-CBC}  |
+  {PBEParameter IDENTIFIED BY pbeWithSHA1AndDES-CBC} |
+  {PBEParameter IDENTIFIED BY pbeWithSHA1AndRC2-CBC},
+   ...
+}
+
+pbeWithMD2AndDES-CBC OBJECT IDENTIFIER ::= {pkcs-5 1}
+pbeWithMD2AndRC2-CBC OBJECT IDENTIFIER ::= {pkcs-5 4}
+pbeWithMD5AndDES-CBC OBJECT IDENTIFIER ::= {pkcs-5 3}
+pbeWithMD5AndRC2-CBC OBJECT IDENTIFIER ::= {pkcs-5 6}
+pbeWithSHA1AndDES-CBC OBJECT IDENTIFIER ::= {pkcs-5 10}
+pbeWithSHA1AndRC2-CBC OBJECT IDENTIFIER ::= {pkcs-5 11}
+
+PBEParameter ::= SEQUENCE {
+  salt OCTET STRING (SIZE(8)),
+  iterationCount INTEGER
+}
+
+
+-- ============================
+-- PBES2
+-- ============================
+
+PBES2Algorithms ALGORITHM-IDENTIFIER ::= {
+  {PBES2-params IDENTIFIED BY id-PBES2},
+   ...
+}
+
+id-PBES2 OBJECT IDENTIFIER ::= {pkcs-5 13}
+
+PBES2-params ::= SEQUENCE {
+  keyDerivationFunc AlgorithmIdentifier {{PBES2-KDFs}},
+  encryptionScheme AlgorithmIdentifier {{PBES2-Encs}}
+}
+
+PBES2-KDFs ALGORITHM-IDENTIFIER ::= {
+  {PBKDF2-params IDENTIFIED BY id-PBKDF2},
+   ...
+}
+
+PBES2-Encs ALGORITHM-IDENTIFIER ::= { ... }
+
+
+-- ============================
+-- PBMAC1
+-- ============================
+
+PBMAC1Algorithms ALGORITHM-IDENTIFIER ::= {
+  {PBMAC1-params IDENTIFIED BY id-PBMAC1},
+   ...
+}
+
+id-PBMAC1 OBJECT IDENTIFIER ::= {pkcs-5 14}
+
+PBMAC1-params ::=  SEQUENCE {
+  keyDerivationFunc AlgorithmIdentifier {{PBMAC1-KDFs}},
+  messageAuthScheme AlgorithmIdentifier {{PBMAC1-MACs}}
+}
+
+PBMAC1-KDFs ALGORITHM-IDENTIFIER ::= {
+  {PBKDF2-params IDENTIFIED BY id-PBKDF2},
+   ...
+}
+
+PBMAC1-MACs ALGORITHM-IDENTIFIER ::= { ... }
+
+-- ============================
+-- Supporting techniques
+-- ============================
+
+digestAlgorithm OBJECT IDENTIFIER     ::= {rsadsi 2}
+encryptionAlgorithm OBJECT IDENTIFIER ::= {rsadsi 3}
+
+SupportingAlgorithms ALGORITHM-IDENTIFIER ::= {
+  {NULL                    IDENTIFIED BY id-hmacWithSHA1} |
+  {OCTET STRING (SIZE(8))  IDENTIFIED BY desCBC}          |
+  {OCTET STRING (SIZE(8))  IDENTIFIED BY des-EDE3-CBC}    |
+  {RC2-CBC-Parameter       IDENTIFIED BY rc2CBC}          |
+  {RC5-CBC-Parameters      IDENTIFIED BY rc5-CBC-PAD}     |
+  {OCTET STRING (SIZE(16)) IDENTIFIED BY aes128-CBC-PAD}  |
+  {OCTET STRING (SIZE(16)) IDENTIFIED BY aes192-CBC-PAD}  |
+  {OCTET STRING (SIZE(16)) IDENTIFIED BY aes256-CBC-PAD},
+   ...
+}
+
+id-hmacWithSHA1       OBJECT IDENTIFIER ::= {digestAlgorithm 7}
+id-hmacWithSHA224     OBJECT IDENTIFIER ::= {digestAlgorithm 8}
+id-hmacWithSHA256     OBJECT IDENTIFIER ::= {digestAlgorithm 9}
+id-hmacWithSHA384     OBJECT IDENTIFIER ::= {digestAlgorithm 10}
+id-hmacWithSHA512     OBJECT IDENTIFIER ::= {digestAlgorithm 11}
+id-hmacWithSHA512-224 OBJECT IDENTIFIER ::= {digestAlgorithm 12}
+id-hmacWithSHA512-256 OBJECT IDENTIFIER ::= {digestAlgorithm 13}
+
+-- from OIW
+desCBC OBJECT IDENTIFIER ::= {oiw secsig(3) algorithms(2) 7}
+
+des-EDE3-CBC OBJECT IDENTIFIER ::= {encryptionAlgorithm 7}
+
+rc2CBC OBJECT IDENTIFIER ::= {encryptionAlgorithm 2}
+
+RC2-CBC-Parameter ::= SEQUENCE {
+  rc2ParameterVersion INTEGER OPTIONAL,
+  iv OCTET STRING (SIZE(8))
+}
+
+rc5-CBC-PAD OBJECT IDENTIFIER ::= {encryptionAlgorithm 9}
+
+RC5-CBC-Parameters ::= SEQUENCE {
+  version INTEGER {v1-0(16)} (v1-0),
+  rounds INTEGER (8..127),
+  blockSizeInBits INTEGER (64 | 128),
+  iv OCTET STRING OPTIONAL
+}
+
+aes OBJECT IDENTIFIER ::= { nistAlgorithms 1 }
+aes128-CBC-PAD OBJECT IDENTIFIER ::= { aes 2 }
+aes192-CBC-PAD OBJECT IDENTIFIER ::= { aes 22 }
+aes256-CBC-PAD OBJECT IDENTIFIER ::= { aes 42 }
+
+END
\ No newline at end of file
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/PKCS-7.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/PKCS-7.asn1
new file mode 100644
index 0000000000..4cea8db240
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/PKCS-7.asn1
@@ -0,0 +1,326 @@
+PKCS-7 {iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-7(7)
+        modules(0) pkcs-7(1)}
+
+DEFINITIONS EXPLICIT TAGS ::=
+BEGIN
+
+--
+-- 3. Definitions
+--
+
+-- EXPORTS All;
+
+IMPORTS
+
+informationFramework, authenticationFramework
+    FROM UsefulDefinitions {joint-iso-itu-t ds(5) module(1)
+                            usefulDefinitions(0) 3}
+
+  Name, ATTRIBUTE
+    FROM InformationFramework informationFramework
+
+  ALGORITHM, Certificate, CertificateSerialNumber,
+    CertificateList
+    FROM AuthenticationFramework authenticationFramework
+
+  contentType, messageDigest, signingTime, counterSignature
+    FROM PKCS-9 {iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1)
+                 pkcs-9(9) modules(0) pkcs-9(1)};
+--
+-- 6. Useful types
+--
+
+-- Also defined in X.509
+-- Redeclared here as a parameterized type
+AlgorithmIdentifier {ALGORITHM:IOSet} ::= SEQUENCE {
+   algorithm   ALGORITHM.&id({IOSet}),
+   parameters  ALGORITHM.&Type({IOSet}{@algorithm}) OPTIONAL
+}
+
+-- Also defined in X.501
+-- Redeclared here as a parameterized type
+Attribute { ATTRIBUTE:IOSet } ::= SEQUENCE {
+  type    ATTRIBUTE.&id({IOSet}),
+  values  SET SIZE (1..MAX) OF ATTRIBUTE.&Type({IOSet}{@type})
+}
+
+CertificateRevocationLists ::=
+  SET OF CertificateList
+
+Certificates ::=
+  SEQUENCE OF Certificate
+
+CRLSequence ::=
+  SEQUENCE OF CertificateList
+
+ContentEncryptionAlgorithmIdentifier ::=
+  AlgorithmIdentifier {{ContentEncryptionAlgorithms}}
+
+ContentEncryptionAlgorithms ALGORITHM ::= {
+  ...  -- add any application-specific algorithms here
+}
+
+DigestAlgorithmIdentifier ::=
+  AlgorithmIdentifier {{DigestAlgorithms}}
+
+DigestAlgorithms ALGORITHM ::= {
+   ...  -- add any application-specific algorithms here
+}
+
+DigestEncryptionAlgorithmIdentifier ::=
+  AlgorithmIdentifier {{DigestEncryptionAlgorithms}}
+
+DigestEncryptionAlgorithms ALGORITHM ::= {
+  ...  -- add any application-specific algorithms here
+}
+
+ExtendedCertificateOrCertificate ::= CHOICE {
+  certificate          Certificate,                      -- X.509
+  extendedCertificate  [0] IMPLICIT ExtendedCertificate  -- PKCS#6
+}
+
+ExtendedCertificate ::= Certificate -- cheating
+
+ExtendedCertificatesAndCertificates ::=
+  SET OF ExtendedCertificateOrCertificate
+
+IssuerAndSerialNumber ::= SEQUENCE {
+  issuer        Name,
+  serialNumber  CertificateSerialNumber
+}
+
+KeyEncryptionAlgorithmIdentifier ::=
+  AlgorithmIdentifier {{KeyEncryptionAlgorithms}}
+
+KeyEncryptionAlgorithms ALGORITHM ::= {
+  ...  -- add any application-specific algorithms here
+}
+
+--
+-- 7. General syntax
+--
+
+ContentInfo ::= SEQUENCE {
+  contentType  ContentType,
+  content      [0] EXPLICIT CONTENTS.&Type({Contents}{@contentType})
+OPTIONAL
+}
+
+CONTENTS ::= TYPE-IDENTIFIER
+
+Contents CONTENTS ::= {
+  {Data                    IDENTIFIED BY data}                   |
+  {SignedData              IDENTIFIED BY signedData}             |
+  {EnvelopedData           IDENTIFIED BY envelopedData}          |
+  {SignedAndEnvelopedData  IDENTIFIED BY signedAndEnvelopedData} |
+  {DigestedData            IDENTIFIED BY digestedData}           |
+  {EncryptedData           IDENTIFIED BY encryptedData},
+  ...  -- add any application-specific types/contents here
+}
+
+ContentType ::= CONTENTS.&id({Contents})
+
+--
+-- 8. Data content type
+--
+
+Data ::= OCTET STRING
+
+--
+-- 9. Signed-data content type
+--
+
+SignedData ::= SEQUENCE {
+  version         INTEGER {sdVer1(1), sdVer2(2)} (sdVer1 | sdVer2),
+  digestAlgorithms
+                  DigestAlgorithmIdentifiers,
+  contentInfo     ContentInfo,
+  certificates CHOICE {
+    certSet       [0] IMPLICIT ExtendedCertificatesAndCertificates,
+    certSequence  [2] IMPLICIT Certificates
+  } OPTIONAL,
+  crls CHOICE {
+    crlSet        [1] IMPLICIT CertificateRevocationLists,
+    crlSequence   [3] IMPLICIT CRLSequence
+  } OPTIONAL,
+  signerInfos     SignerInfos
+} (WITH COMPONENTS { ..., version (sdVer1),
+     digestAlgorithms   (WITH COMPONENTS { ..., daSet PRESENT }),
+     certificates       (WITH COMPONENTS { ..., certSequence ABSENT }),
+     crls               (WITH COMPONENTS { ..., crlSequence ABSENT }),
+     signerInfos        (WITH COMPONENTS { ..., siSet PRESENT })
+   } |
+   WITH COMPONENTS { ..., version (sdVer2),
+      digestAlgorithms  (WITH COMPONENTS { ..., daSequence PRESENT }),
+      certificates      (WITH COMPONENTS { ..., certSet ABSENT }),
+      crls              (WITH COMPONENTS { ..., crlSet ABSENT }),
+      signerInfos       (WITH COMPONENTS { ..., siSequence PRESENT })
+})
+
+SignerInfos ::= CHOICE {
+    siSet         SET OF SignerInfo,
+    siSequence    SEQUENCE OF SignerInfo
+}
+
+DigestAlgorithmIdentifiers ::= CHOICE {
+  daSet           SET OF DigestAlgorithmIdentifier,
+  daSequence      SEQUENCE OF DigestAlgorithmIdentifier
+}
+
+SignerInfo ::= SEQUENCE {
+  version         INTEGER {siVer1(1), siVer2(2)} (siVer1 | siVer2),
+  issuerAndSerialNumber
+                  IssuerAndSerialNumber,
+  digestAlgorithm DigestAlgorithmIdentifier,
+  authenticatedAttributes CHOICE {
+    aaSet         [0] IMPLICIT SET OF Attribute {{Authenticated}},
+    aaSequence    [2] EXPLICIT SEQUENCE OF Attribute {{Authenticated}}
+    -- Explicit because easier to compute digest on sequence of attributes and then reuse
+    -- encoded sequence in aaSequence.
+  } OPTIONAL,
+  digestEncryptionAlgorithm
+                  DigestEncryptionAlgorithmIdentifier,
+  encryptedDigest EncryptedDigest,
+  unauthenticatedAttributes CHOICE {
+    uaSet         [1] IMPLICIT SET OF Attribute {{Unauthenticated}},
+    uaSequence    [3] IMPLICIT SEQUENCE OF Attribute {{Unauthenticated}}
+  } OPTIONAL
+} (WITH COMPONENTS { ..., version (siVer1),
+  authenticatedAttributes       (WITH COMPONENTS { ..., aaSequence ABSENT }),
+  unauthenticatedAttributes     (WITH COMPONENTS { ..., uaSequence ABSENT })
+} | WITH COMPONENTS { ..., version (siVer2),
+  authenticatedAttributes       (WITH COMPONENTS { ..., aaSet ABSENT }),
+  unauthenticatedAttributes     (WITH COMPONENTS { ..., uaSet ABSENT })
+})
+
+Authenticated ATTRIBUTE ::= {
+  contentType |
+  messageDigest,
+  ...,  -- add application-specific attributes here
+  signingTime
+}
+
+Unauthenticated ATTRIBUTE ::= {
+  ...,  -- add application-specific attributes here
+  counterSignature
+}
+
+EncryptedDigest ::= OCTET STRING
+
+DigestInfo ::= SEQUENCE {
+  digestAlgorithm DigestAlgorithmIdentifier,
+  digest          Digest
+}
+
+Digest ::= OCTET STRING
+
+--
+-- 10. Enveloped-data content type
+--
+
+EnvelopedData ::= SEQUENCE {
+  version         INTEGER {edVer0(0), edVer1(1)} (edVer0 | edVer1),
+  recipientInfos  RecipientInfos,
+  encryptedContentInfo
+                  EncryptedContentInfo
+} (WITH COMPONENTS { ..., version (edVer0),
+    recipientInfos      (WITH COMPONENTS { ..., riSet PRESENT })
+} | WITH COMPONENTS { ..., version (edVer1),
+    recipientInfos      (WITH COMPONENTS { ..., riSequence PRESENT })
+})
+
+RecipientInfos ::= CHOICE {
+  riSet           SET OF RecipientInfo,
+  riSequence      SEQUENCE OF RecipientInfo
+}
+
+EncryptedContentInfo ::= SEQUENCE {
+  contentType     ContentType,
+  contentEncryptionAlgorithm
+                  ContentEncryptionAlgorithmIdentifier,
+  encryptedContent
+                  [0] IMPLICIT EncryptedContent OPTIONAL
+}
+
+EncryptedContent ::= OCTET STRING
+
+RecipientInfo ::= SEQUENCE {
+  version         INTEGER {riVer0(0)} (riVer0),
+  issuerAndSerialNumber
+                  IssuerAndSerialNumber,
+  keyEncryptionAlgorithm
+                  KeyEncryptionAlgorithmIdentifier,
+  encryptedKey    EncryptedKey
+}
+
+EncryptedKey ::= OCTET STRING
+
+--
+-- 11. Signed-and-enveloped-data content type
+--
+
+SignedAndEnvelopedData ::= SEQUENCE {
+  version         INTEGER {seVer1(1), seVer2(2)} (seVer1 | seVer2),
+  recipientInfos  RecipientInfos,
+  digestAlgorithms
+                  DigestAlgorithmIdentifiers,
+  encryptedContentInfo
+                  EncryptedContentInfo,
+  certificates CHOICE {
+    certSet       [0] IMPLICIT ExtendedCertificatesAndCertificates,
+    certSequence  [2] IMPLICIT Certificates
+  } OPTIONAL,
+  crls CHOICE {
+    crlSet        [1] IMPLICIT CertificateRevocationLists,
+    crlSequence   [3] IMPLICIT CRLSequence
+  } OPTIONAL,
+  signerInfos     SignerInfos
+} (WITH COMPONENTS { ..., version (seVer1),
+    recipientInfos   (WITH COMPONENTS { ..., riSet PRESENT }),
+    digestAlgorithms (WITH COMPONENTS { ..., daSet PRESENT }),
+    certificates     (WITH COMPONENTS { ..., certSequence ABSENT }),
+    crls             (WITH COMPONENTS { ..., crlSequence ABSENT }),
+    signerInfos      (WITH COMPONENTS { ..., siSet PRESENT })
+} |
+  WITH COMPONENTS { ..., version (seVer2),
+    recipientInfos   (WITH COMPONENTS { ..., riSequence PRESENT }),
+    digestAlgorithms (WITH COMPONENTS { ..., daSequence PRESENT }),
+    certificates     (WITH COMPONENTS { ..., certSet ABSENT }),
+    crls             (WITH COMPONENTS { ..., crlSet ABSENT }),
+    signerInfos      (WITH COMPONENTS { ..., siSequence PRESENT })
+})
+
+--
+-- 12. Digested-data content type
+--
+
+DigestedData ::= SEQUENCE {
+  version         INTEGER {ddVer0(0)} (ddVer0),
+  digestAlgorithm DigestAlgorithmIdentifier,
+  contentInfo     ContentInfo,
+  digest          Digest
+}
+
+--
+-- 13. Encrypted-data content type
+--
+
+EncryptedData ::= SEQUENCE {
+  version		INTEGER {edVer0(0)} (edVer0),
+  encryptedContentInfo  EncryptedContentInfo
+}
+
+--
+-- 14. Object Identifiers
+--
+
+pkcs-7                  OBJECT IDENTIFIER ::=
+  { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) 7 }
+data                    OBJECT IDENTIFIER ::= { pkcs-7 1 }
+signedData              OBJECT IDENTIFIER ::= { pkcs-7 2 }
+envelopedData           OBJECT IDENTIFIER ::= { pkcs-7 3 }
+signedAndEnvelopedData  OBJECT IDENTIFIER ::= { pkcs-7 4 }
+digestedData            OBJECT IDENTIFIER ::= { pkcs-7 5 }
+encryptedData           OBJECT IDENTIFIER ::= { pkcs-7 6 }
+
+END
\ No newline at end of file
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/PKCS-8.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/PKCS-8.asn1
new file mode 100644
index 0000000000..266f90170a
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/PKCS-8.asn1
@@ -0,0 +1,61 @@
+PKCS-8 {iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-8(8)
+        modules(1) pkcs-8(1)}
+
+-- $Revision: 1.5 $
+
+-- This module has been checked for conformance with the ASN.1
+-- standard by the OSS ASN.1 Tools
+
+DEFINITIONS IMPLICIT TAGS ::=
+
+BEGIN
+
+-- EXPORTS All --
+-- All types and values defined in this module is exported for use in other
+-- ASN.1 modules.
+
+IMPORTS
+
+informationFramework
+        FROM UsefulDefinitions {joint-iso-itu-t(2) ds(5) module(1)
+                                usefulDefinitions(0) 3}
+
+Attribute
+        FROM InformationFramework informationFramework
+
+AlgorithmIdentifier, ALGORITHM-IDENTIFIER
+        FROM PKCS-5 {iso(1) member-body(2) us(840) rsadsi(113549)
+        pkcs(1) pkcs-5(5) modules(16) pkcs-5(1)};
+
+-- Private-key information syntax
+
+PrivateKeyInfo ::= SEQUENCE {
+  version Version,
+  privateKeyAlgorithm AlgorithmIdentifier {{PrivateKeyAlgorithms}},
+  privateKey PrivateKey,
+  attributes [0] Attributes OPTIONAL }
+
+Version ::= INTEGER {v1(0)} (v1,...)
+
+PrivateKey ::= OCTET STRING
+
+Attributes ::= SET OF Attribute
+
+-- Encrypted private-key information syntax
+
+EncryptedPrivateKeyInfo ::= SEQUENCE {
+    encryptionAlgorithm AlgorithmIdentifier {{KeyEncryptionAlgorithms}},
+    encryptedData EncryptedData
+}
+
+EncryptedData ::= OCTET STRING
+
+PrivateKeyAlgorithms ALGORITHM-IDENTIFIER ::= {
+    ... -- For local profiles
+}
+
+KeyEncryptionAlgorithms ALGORITHM-IDENTIFIER ::= {
+    ... -- For local profiles
+}
+
+END
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/PKCS-9.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/PKCS-9.asn1
new file mode 100644
index 0000000000..cd561f4d7e
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/PKCS-9.asn1
@@ -0,0 +1,391 @@
+PKCS-9 {iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1)
+pkcs-9(9) modules(0) pkcs-9(1)}
+
+-- $Revision$
+
+DEFINITIONS IMPLICIT TAGS ::=
+
+BEGIN
+
+-- EXPORTS All --
+-- All types and values defined in this module is exported for use in
+-- other ASN.1 modules.
+
+IMPORTS
+
+informationFramework, authenticationFramework, selectedAttributeTypes,
+        upperBounds , id-at
+        FROM UsefulDefinitions {joint-iso-itu-t ds(5) module(1)
+        usefulDefinitions(0) 3}
+
+ub-name
+        FROM UpperBounds upperBounds
+
+OBJECT-CLASS, ATTRIBUTE, MATCHING-RULE, Attribute, top, objectIdentifierMatch
+        FROM InformationFramework informationFramework
+
+ALGORITHM, Extensions, Time
+        FROM AuthenticationFramework authenticationFramework
+
+DirectoryString, octetStringMatch, caseIgnoreMatch, caseExactMatch,
+        generalizedTimeMatch, integerMatch, serialNumber
+        FROM SelectedAttributeTypes selectedAttributeTypes
+
+ContentInfo, SignerInfo
+        FROM CryptographicMessageSyntax-2009 {iso(1) member-body(2) us(840)
+        rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) modules(0) cms(1)}
+
+EncryptedPrivateKeyInfo
+        FROM PKCS-8 {iso(1) member-body(2) us(840) rsadsi(113549)
+        pkcs(1) pkcs-8(8) modules(1) pkcs-8(1)}
+
+PFX
+        FROM PKCS-12 {iso(1) member-body(2) us(840) rsadsi(113549)
+        pkcs(1) pkcs-12(12) modules(0) pkcs-12(1)}
+
+-- PKCS15Token
+--        FROM PKCS-15 {iso(1) member-body(2) us(840) rsadsi(113549)
+--        pkcs(1) pkcs-15(15) modules(1) pkcs-15(1)}
+;
+
+-- Upper bounds
+pkcs-9-ub-pkcs9String          		INTEGER ::= 255
+pkcs-9-ub-emailAddress         		INTEGER ::= pkcs-9-ub-pkcs9String
+pkcs-9-ub-unstructuredName      	INTEGER ::= pkcs-9-ub-pkcs9String
+pkcs-9-ub-unstructuredAddress   	INTEGER ::= pkcs-9-ub-pkcs9String
+pkcs-9-ub-challengePassword     	INTEGER ::= pkcs-9-ub-pkcs9String
+pkcs-9-ub-friendlyName         		INTEGER ::= pkcs-9-ub-pkcs9String
+pkcs-9-ub-signingDescription    	INTEGER ::= pkcs-9-ub-pkcs9String
+pkcs-9-ub-match                		INTEGER ::= pkcs-9-ub-pkcs9String
+pkcs-9-ub-pseudonym            		INTEGER ::= ub-name
+pkcs-9-ub-placeOfBirth         		INTEGER ::= ub-name
+
+-- Object Identifiers
+
+pkcs-9 OBJECT IDENTIFIER ::= {iso(1) member-body(2) us(840)
+                              rsadsi(113549) pkcs(1) 9}
+
+  -- Main arcs
+pkcs-9-mo	OBJECT IDENTIFIER ::= {pkcs-9 0}  -- Modules branch
+pkcs-9-oc    	OBJECT IDENTIFIER ::= {pkcs-9 24} -- Object class branch
+pkcs-9-at       OBJECT IDENTIFIER ::= {pkcs-9 25} -- Attribute branch, for new  attributes
+pkcs-9-sx	OBJECT IDENTIFIER ::= {pkcs-9 26} -- For syntaxes (RFC 2252)
+pkcs-9-mr       OBJECT IDENTIFIER ::= {pkcs-9 27} -- Matching rules
+
+  -- Object classes
+pkcs-9-oc-pkcsEntity   			OBJECT IDENTIFIER ::= {pkcs-9-oc 1}
+pkcs-9-oc-naturalPerson                 OBJECT IDENTIFIER ::= {pkcs-9-oc 2}
+
+  -- Attributes
+pkcs-9-at-emailAddress                  OBJECT IDENTIFIER ::= {pkcs-9 1}
+pkcs-9-at-unstructuredName              OBJECT IDENTIFIER ::= {pkcs-9 2}
+pkcs-9-at-contentType                   OBJECT IDENTIFIER ::= {pkcs-9 3}
+pkcs-9-at-messageDigest                 OBJECT IDENTIFIER ::= {pkcs-9 4}
+pkcs-9-at-signingTime                   OBJECT IDENTIFIER ::= {pkcs-9 5}
+pkcs-9-at-counterSignature              OBJECT IDENTIFIER ::= {pkcs-9 6}
+pkcs-9-at-challengePassword             OBJECT IDENTIFIER ::= {pkcs-9 7}
+pkcs-9-at-unstructuredAddress           OBJECT IDENTIFIER ::= {pkcs-9 8}
+pkcs-9-at-extendedCertificateAttributes OBJECT IDENTIFIER ::= {pkcs-9 9}
+
+-- Obsolete (?) attribute identifiers, purportedly from "tentative
+-- PKCS #9 draft"
+-- pkcs-9-at-issuerAndSerialNumber      OBJECT IDENTIFIER ::= {pkcs-9 10}
+-- pkcs-9-at-passwordCheck              OBJECT IDENTIFIER ::= {pkcs-9 11}
+-- pkcs-9-at-publicKey                  OBJECT IDENTIFIER ::= {pkcs-9 12}
+
+pkcs-9-at-signingDescription            OBJECT IDENTIFIER ::= {pkcs-9 13}
+pkcs-9-at-extensionRequest              OBJECT IDENTIFIER ::= {pkcs-9 14}
+pkcs-9-at-smimeCapabilities             OBJECT IDENTIFIER ::= {pkcs-9 15}
+
+-- Unused (?)
+-- pkcs-9-at-?                          OBJECT IDENTIFIER ::= {pkcs-9 17}
+-- pkcs-9-at-?                          OBJECT IDENTIFIER ::= {pkcs-9 18}
+-- pkcs-9-at-?                          OBJECT IDENTIFIER ::= {pkcs-9 19}
+
+pkcs-9-at-friendlyName                  OBJECT IDENTIFIER ::= {pkcs-9 20}
+pkcs-9-at-localKeyId                    OBJECT IDENTIFIER ::= {pkcs-9 21}
+pkcs-9-at-userPKCS12                    OBJECT IDENTIFIER ::= {2 16 840 1 113730 3 1 216}
+pkcs-9-at-pkcs15Token                   OBJECT IDENTIFIER ::= {pkcs-9-at 1}
+pkcs-9-at-encryptedPrivateKeyInfo       OBJECT IDENTIFIER ::= {pkcs-9-at 2}
+pkcs-9-at-randomNonce                   OBJECT IDENTIFIER ::= {pkcs-9-at 3}
+pkcs-9-at-sequenceNumber                OBJECT IDENTIFIER ::= {pkcs-9-at 4}
+pkcs-9-at-pkcs7PDU                      OBJECT IDENTIFIER ::= {pkcs-9-at 5}
+
+  -- IETF PKIX Attribute branch
+ietf-at         			OBJECT IDENTIFIER ::= {1 3 6 1 5 5 7 9}
+
+pkcs-9-at-dateOfBirth                   OBJECT IDENTIFIER ::= {ietf-at 1}
+pkcs-9-at-placeOfBirth                  OBJECT IDENTIFIER ::= {ietf-at 2}
+pkcs-9-at-gender                        OBJECT IDENTIFIER ::= {ietf-at 3}
+pkcs-9-at-countryOfCitizenship          OBJECT IDENTIFIER ::= {ietf-at 4}
+pkcs-9-at-countryOfResidence            OBJECT IDENTIFIER ::= {ietf-at 5}
+
+  -- Syntaxes (for use with LDAP accessible directories)
+pkcs-9-sx-pkcs9String                   OBJECT IDENTIFIER ::= {pkcs-9-sx 1}
+pkcs-9-sx-signingTime                   OBJECT IDENTIFIER ::= {pkcs-9-sx 2}
+
+  -- Matching rules
+pkcs-9-mr-caseIgnoreMatch               OBJECT IDENTIFIER ::= {pkcs-9-mr 1}
+pkcs-9-mr-signingTimeMatch              OBJECT IDENTIFIER ::= {pkcs-9-mr 2}
+
+  -- Arcs with attributes defined elsewhere
+smime             			OBJECT IDENTIFIER ::= {pkcs-9 16}
+  -- Main arc for S/MIME (RFC 2633)
+certTypes         			OBJECT IDENTIFIER ::= {pkcs-9 22}
+  -- Main arc for certificate types defined in PKCS #12
+crlTypes          			OBJECT IDENTIFIER ::= {pkcs-9 23}
+  -- Main arc for crl types defined in PKCS #12
+
+  -- Other object identifiers
+id-at-pseudonym				OBJECT IDENTIFIER ::= {id-at 65}
+
+-- Useful types
+
+PKCS9String {INTEGER : maxSize} ::= CHOICE {
+        ia5String IA5String (SIZE(1..maxSize)),
+        directoryString DirectoryString {maxSize}
+}
+
+-- Object classes
+
+pkcsEntity OBJECT-CLASS ::= {
+        SUBCLASS OF	{ top }
+        KIND           	auxiliary
+        MAY CONTAIN	{ PKCSEntityAttributeSet }
+        ID              pkcs-9-oc-pkcsEntity
+}
+
+naturalPerson OBJECT-CLASS ::= {
+        SUBCLASS OF 	{ top }
+        KIND 		auxiliary
+        MAY CONTAIN 	{ NaturalPersonAttributeSet }
+        ID 		pkcs-9-oc-naturalPerson
+}
+
+-- Attribute sets
+
+PKCSEntityAttributeSet ATTRIBUTE ::= {
+        pKCS7PDU       |
+        userPKCS12     |
+--        pKCS15Token    |
+        encryptedPrivateKeyInfo,
+        ... -- For future extensions
+}
+
+NaturalPersonAttributeSet ATTRIBUTE ::= {
+        emailAddress	     |
+        unstructuredName     |
+        unstructuredAddress  |
+        dateOfBirth	     |
+        placeOfBirth	     |
+        gender		     |
+        countryOfCitizenship |
+        countryOfResidence   |
+        pseudonym	     |
+        serialNumber,
+        ... -- For future extensions
+}
+
+-- Attributes
+
+pKCS7PDU ATTRIBUTE ::= {
+        WITH SYNTAX ContentInfo
+        ID pkcs-9-at-pkcs7PDU
+}
+
+userPKCS12 ATTRIBUTE ::= {
+        WITH SYNTAX PFX
+        ID pkcs-9-at-userPKCS12
+}
+
+-- pKCS15Token ATTRIBUTE ::= {
+--        WITH SYNTAX PKCS15Token
+--        ID pkcs-9-at-pkcs15Token
+-- }
+
+encryptedPrivateKeyInfo ATTRIBUTE ::= {
+        WITH SYNTAX EncryptedPrivateKeyInfo
+        ID pkcs-9-at-encryptedPrivateKeyInfo
+}
+
+emailAddress ATTRIBUTE ::= {
+        WITH SYNTAX IA5String (SIZE(1..pkcs-9-ub-emailAddress))
+        EQUALITY MATCHING RULE pkcs9CaseIgnoreMatch
+        ID pkcs-9-at-emailAddress
+}
+
+unstructuredName ATTRIBUTE ::= {
+        WITH SYNTAX PKCS9String {pkcs-9-ub-unstructuredName}
+        EQUALITY MATCHING RULE pkcs9CaseIgnoreMatch
+        ID pkcs-9-at-unstructuredName
+}
+
+unstructuredAddress ATTRIBUTE ::= {
+        WITH SYNTAX DirectoryString {pkcs-9-ub-unstructuredAddress}
+        EQUALITY MATCHING RULE caseIgnoreMatch
+        ID pkcs-9-at-unstructuredAddress
+}
+
+dateOfBirth ATTRIBUTE ::= {
+        WITH SYNTAX GeneralizedTime
+        EQUALITY MATCHING RULE generalizedTimeMatch
+        SINGLE VALUE TRUE
+        ID pkcs-9-at-dateOfBirth
+}
+
+placeOfBirth ATTRIBUTE ::= {
+        WITH SYNTAX DirectoryString {pkcs-9-ub-placeOfBirth}
+        EQUALITY MATCHING RULE caseExactMatch
+        SINGLE VALUE TRUE
+        ID pkcs-9-at-placeOfBirth
+}
+
+gender ATTRIBUTE ::= {
+        WITH SYNTAX PrintableString (SIZE(1) ^ FROM ("M" | "F" | "m" | "f"))
+        EQUALITY MATCHING RULE caseIgnoreMatch
+        SINGLE VALUE TRUE
+        ID pkcs-9-at-gender
+}
+
+countryOfCitizenship ATTRIBUTE ::= {
+        WITH SYNTAX PrintableString (SIZE(2))(CONSTRAINED BY {
+        -- Must be a two-letter country acronym in accordance with
+        -- ISO/IEC 3166 --})
+        EQUALITY MATCHING RULE caseIgnoreMatch
+        ID pkcs-9-at-countryOfCitizenship
+}
+
+countryOfResidence ATTRIBUTE ::= {
+        WITH SYNTAX PrintableString (SIZE(2))(CONSTRAINED BY {
+        -- Must be a two-letter country acronym in accordance with
+        -- ISO/IEC 3166 --})
+        EQUALITY MATCHING RULE caseIgnoreMatch
+        ID pkcs-9-at-countryOfResidence
+}
+
+pseudonym ATTRIBUTE ::= {
+        WITH SYNTAX DirectoryString {pkcs-9-ub-pseudonym}
+        EQUALITY MATCHING RULE caseExactMatch
+        ID id-at-pseudonym
+}
+
+contentType ATTRIBUTE ::= {
+        WITH SYNTAX ContentType
+        EQUALITY MATCHING RULE objectIdentifierMatch
+        SINGLE VALUE TRUE
+        ID pkcs-9-at-contentType
+}
+
+ContentType ::= OBJECT IDENTIFIER
+
+messageDigest ATTRIBUTE ::= {
+        WITH SYNTAX MessageDigest
+        EQUALITY MATCHING RULE octetStringMatch
+        SINGLE VALUE TRUE
+        ID pkcs-9-at-messageDigest
+}
+
+MessageDigest ::= OCTET STRING
+
+signingTime ATTRIBUTE ::= {
+        WITH SYNTAX SigningTime
+        EQUALITY MATCHING RULE signingTimeMatch
+        SINGLE VALUE TRUE
+        ID pkcs-9-at-signingTime
+}
+
+SigningTime ::= Time -- imported from ISO/IEC 9594-8
+
+randomNonce ATTRIBUTE ::= {
+        WITH SYNTAX RandomNonce
+        EQUALITY MATCHING RULE octetStringMatch
+        SINGLE VALUE TRUE
+        ID pkcs-9-at-randomNonce
+}
+
+RandomNonce ::= OCTET STRING (SIZE(4..MAX)) -- At least four bytes long
+
+sequenceNumber ATTRIBUTE ::= {
+        WITH SYNTAX SequenceNumber
+        EQUALITY MATCHING RULE integerMatch
+        SINGLE VALUE TRUE
+        ID pkcs-9-at-sequenceNumber
+}
+
+SequenceNumber ::= INTEGER (1..MAX)
+
+counterSignature ATTRIBUTE ::= {
+        WITH SYNTAX SignerInfo
+        ID pkcs-9-at-counterSignature
+}
+
+challengePassword ATTRIBUTE ::= {
+        WITH SYNTAX DirectoryString {pkcs-9-ub-challengePassword}
+        EQUALITY MATCHING RULE caseExactMatch
+        SINGLE VALUE TRUE
+        ID pkcs-9-at-challengePassword
+}
+
+extensionRequest ATTRIBUTE ::= {
+        WITH SYNTAX ExtensionRequest
+        SINGLE VALUE TRUE
+        ID pkcs-9-at-extensionRequest
+}
+
+ExtensionRequest ::= Extensions
+
+extendedCertificateAttributes ATTRIBUTE ::= {
+        WITH SYNTAX SET OF Attribute
+        SINGLE VALUE TRUE
+        ID pkcs-9-at-extendedCertificateAttributes
+}
+
+friendlyName ATTRIBUTE ::= {
+        WITH SYNTAX BMPString (SIZE(1..pkcs-9-ub-friendlyName))
+        EQUALITY MATCHING RULE caseIgnoreMatch
+        SINGLE VALUE TRUE
+        ID pkcs-9-at-friendlyName
+}
+
+localKeyId ATTRIBUTE ::= {
+        WITH SYNTAX OCTET STRING
+        EQUALITY MATCHING RULE octetStringMatch
+        SINGLE VALUE TRUE
+        ID pkcs-9-at-localKeyId
+}
+
+signingDescription ATTRIBUTE ::= {
+        WITH SYNTAX DirectoryString {pkcs-9-ub-signingDescription}
+        EQUALITY MATCHING RULE caseIgnoreMatch
+        SINGLE VALUE TRUE
+        ID pkcs-9-at-signingDescription
+}
+
+smimeCapabilities ATTRIBUTE ::= {
+        WITH SYNTAX SMIMECapabilities
+        SINGLE VALUE TRUE
+        ID pkcs-9-at-smimeCapabilities
+}
+
+SMIMECapabilities ::= SEQUENCE OF SMIMECapability
+
+SMIMECapability ::= SEQUENCE {
+        algorithm  ALGORITHM.&id ({SMIMEv3Algorithms}),
+        parameters ALGORITHM.&Type ({SMIMEv3Algorithms}{@algorithm})
+}
+
+SMIMEv3Algorithms ALGORITHM ::= {...-- See RFC 2633 --}
+
+ -- Matching rules
+
+pkcs9CaseIgnoreMatch MATCHING-RULE ::= {
+        SYNTAX PKCS9String {pkcs-9-ub-match}
+        ID pkcs-9-mr-caseIgnoreMatch
+}
+
+signingTimeMatch MATCHING-RULE ::= {
+        SYNTAX SigningTime
+        ID pkcs-9-mr-signingTimeMatch
+}
+
+END
\ No newline at end of file
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/PKCS7BodyPartType.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/PKCS7BodyPartType.asn1
index 525ee3c5ec..1bcc2281a1 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/PKCS7BodyPartType.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/PKCS7BodyPartType.asn1
@@ -6,7 +6,7 @@ BEGIN
 IMPORTS
   -- PKCS#7
   ContentInfo
-    FROM PKCS7 {iso(1) member-body(2) usa(840) rsadsi(113549) pkcs(1) 
+    FROM PKCS-7 {iso(1) member-body(2) usa(840) rsadsi(113549) pkcs(1)
       7 module(0)}
   -- module not formally defined in the PKCS#7document, therefore defined in Annex O
   -- IPMS Information Objects
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/PKIX-CommonTypes-2009.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/PKIX-CommonTypes-2009.asn1
new file mode 100644
index 0000000000..fde5bddbf3
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/PKIX-CommonTypes-2009.asn1
@@ -0,0 +1,166 @@
+  PKIX-CommonTypes-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-pkixCommon-02(57)}
+
+  DEFINITIONS EXPLICIT TAGS ::=
+  BEGIN
+
+  --  ATTRIBUTE
+  --
+  --  Describe the set of data associated with an attribute of some type
+  --
+  --  &id is an OID identifying the attribute
+  --  &Type is the ASN.1 type structure for the attribute; not all
+  --      attributes have a data structure, so this field is optional
+  --  &minCount contains the minimum number of times the attribute can
+  --      occur in an AttributeSet
+  --  &maxCount contains the maximum number of times the attribute can
+  --      appear in an AttributeSet
+  --      Note: this cannot be automatically enforced as the field
+  --      cannot be defaulted to MAX.
+  --  &equality-match contains information about how matching should be
+  --      done
+  --
+  --  Currently we are using two different prefixes for attributes.
+  --
+  --  at- for certificate attributes
+  --  aa- for CMS attributes
+  --
+
+  ATTRIBUTE ::= CLASS {
+      &id             OBJECT IDENTIFIER UNIQUE,
+      &Type           OPTIONAL,
+      &equality-match MATCHING-RULE OPTIONAL,
+      &minCount       INTEGER DEFAULT 1,
+      &maxCount       INTEGER OPTIONAL
+  } WITH SYNTAX {
+      [TYPE &Type]
+      [EQUALITY MATCHING RULE &equality-match]
+      [COUNTS [MIN &minCount] [MAX &maxCount]]
+      IDENTIFIED BY &id
+  }
+
+  -- Specification of MATCHING-RULE information object class
+  --
+
+  MATCHING-RULE ::= CLASS {
+    &ParentMatchingRules   MATCHING-RULE OPTIONAL,
+    &AssertionType         OPTIONAL,
+    &uniqueMatchIndicator  ATTRIBUTE OPTIONAL,
+    &id                    OBJECT IDENTIFIER UNIQUE
+  }
+  WITH SYNTAX {
+    [PARENT &ParentMatchingRules]
+    [SYNTAX &AssertionType]
+    [UNIQUE-MATCH-INDICATOR &uniqueMatchIndicator]
+    ID &id
+  }
+
+  --  AttributeSet
+  --
+  --  Used when a set of attributes is to occur.
+  --
+  --  type contains the identifier of the attribute
+  --  values contains a set of values where the structure of the ASN.1
+  --      is defined by the attribute
+  --
+  --  The parameter contains the set of objects describing
+  --      those attributes that can occur in this location.
+  --
+
+  AttributeSet{ATTRIBUTE:AttrSet} ::= SEQUENCE {
+      type      ATTRIBUTE.&id({AttrSet}),
+      values    SET SIZE (1..MAX) OF ATTRIBUTE.
+                    &Type({AttrSet}{@type})
+  }
+
+  --  SingleAttribute
+  --
+  --  Used for a single valued attribute
+  --
+  --  The parameter contains the set of objects describing the
+  --      attributes that can occur in this location
+  --
+
+  SingleAttribute{ATTRIBUTE:AttrSet} ::= SEQUENCE {
+      type      ATTRIBUTE.&id({AttrSet}),
+      value     ATTRIBUTE.&Type({AttrSet}{@type})
+  }
+
+  --  EXTENSION
+  --
+  --  This class definition is used to describe the association of
+  --      object identifier and ASN.1 type structure for extensions
+  --
+  --  All extensions are prefixed with ext-
+  --
+  --  &id contains the object identifier for the extension
+  --  &ExtnType specifies the ASN.1 type structure for the extension
+  --  &Critical contains the set of legal values for the critical field.
+  --      This is normally {TRUE|FALSE} but in some instances may be
+  --      restricted to just one of these values.
+  --
+
+  EXTENSION ::= CLASS {
+      &id  OBJECT IDENTIFIER UNIQUE,
+      &ExtnType,
+      &Critical    BOOLEAN DEFAULT {TRUE | FALSE }
+  } WITH SYNTAX {
+      SYNTAX &ExtnType IDENTIFIED BY &id
+      [CRITICALITY &Critical]
+  }
+
+  --  Extensions
+  --
+  --  Used for a sequence of extensions.
+  --
+  --  The parameter contains the set of legal extensions that can
+  --  occur in this sequence.
+  --
+
+  Extensions{EXTENSION:ExtensionSet} ::=
+      SEQUENCE SIZE (1..MAX) OF Extension{{ExtensionSet}}
+
+  --  Extension
+  --
+  --  Used for a single extension
+  --
+  --  The parameter contains the set of legal extensions that can
+  --      occur in this extension.
+  --
+  --  The restriction on the critical field has been commented out
+  --  the authors are not completely sure it is correct.
+  --  The restriction could be done using custom code rather than
+  --  compiler-generated code, however.
+  --
+
+  Extension{EXTENSION:ExtensionSet} ::= SEQUENCE {
+      extnID      EXTENSION.&id({ExtensionSet}),
+      critical    BOOLEAN
+  --                     (EXTENSION.&Critical({ExtensionSet}{@extnID}))
+                       DEFAULT FALSE,
+      extnValue   OCTET STRING (CONTAINING
+                  EXTENSION.&ExtnType({ExtensionSet}{@extnID}))
+                  --  contains the DER encoding of the ASN.1 value
+                  --  corresponding to the extension type identified
+                  --  by extnID
+  }
+
+  --  Security Category
+  --
+  --  Security categories are used both for specifying clearances and
+  --  for labeling objects.  We move this here from RFC 3281 so that
+  --  they will use a common single object class to express this
+  --  information.
+  --
+
+  SECURITY-CATEGORY ::= TYPE-IDENTIFIER
+
+  SecurityCategory{SECURITY-CATEGORY:Supported} ::= SEQUENCE {
+      type      [0]  IMPLICIT SECURITY-CATEGORY.
+              &id({Supported}),
+      value     [1]  EXPLICIT SECURITY-CATEGORY.
+              &Type({Supported}{@type})
+  }
+
+  END
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/PKIX-X400Address-2009.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/PKIX-X400Address-2009.asn1
new file mode 100644
index 0000000000..41cbaea67e
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/PKIX-X400Address-2009.asn1
@@ -0,0 +1,300 @@
+  --
+  --  This module is used to isolate all the X.400 naming information.
+  --  There is no reason to expect this to occur in a PKIX certificate.
+  --
+
+  PKIX-X400Address-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-x400address-02(60) }
+  DEFINITIONS EXPLICIT TAGS ::=
+  BEGIN
+
+  -- X.400 address syntax starts here
+
+  ORAddress ::= SEQUENCE {
+     built-in-standard-attributes BuiltInStandardAttributes,
+     built-in-domain-defined-attributes
+                     BuiltInDomainDefinedAttributes OPTIONAL,
+
+     -- see also teletex-domain-defined-attributes
+     extension-attributes ExtensionAttributes OPTIONAL }
+
+  -- Built-in Standard Attributes
+
+  BuiltInStandardAttributes ::= SEQUENCE {
+     country-name                  CountryName OPTIONAL,
+     administration-domain-name    AdministrationDomainName OPTIONAL,
+     network-address           [0] IMPLICIT NetworkAddress OPTIONAL,
+       -- see also extended-network-address
+     terminal-identifier       [1] IMPLICIT TerminalIdentifier OPTIONAL,
+     private-domain-name       [2] PrivateDomainName OPTIONAL,
+     organization-name         [3] IMPLICIT OrganizationName OPTIONAL,
+       -- see also teletex-organization-name
+     numeric-user-identifier   [4] IMPLICIT NumericUserIdentifier
+                                   OPTIONAL,
+     personal-name             [5] IMPLICIT PersonalName OPTIONAL,
+       -- see also teletex-personal-name
+     organizational-unit-names [6] IMPLICIT OrganizationalUnitNames
+                                   OPTIONAL }
+       -- see also teletex-organizational-unit-names
+
+  CountryName ::= [APPLICATION 1] CHOICE {
+     x121-dcc-code         NumericString
+                             (SIZE (ub-country-name-numeric-length)),
+     iso-3166-alpha2-code  PrintableString
+                             (SIZE (ub-country-name-alpha-length)) }
+
+  AdministrationDomainName ::= [APPLICATION 2] CHOICE {
+     numeric   NumericString   (SIZE (0..ub-domain-name-length)),
+     printable PrintableString (SIZE (0..ub-domain-name-length)) }
+
+  NetworkAddress ::= X121Address  -- see also extended-network-address
+
+  X121Address ::= NumericString (SIZE (1..ub-x121-address-length))
+
+  TerminalIdentifier ::= PrintableString (SIZE
+  (1..ub-terminal-id-length))
+
+  PrivateDomainName ::= CHOICE {
+     numeric   NumericString   (SIZE (1..ub-domain-name-length)),
+     printable PrintableString (SIZE (1..ub-domain-name-length)) }
+
+  OrganizationName ::= PrintableString
+                              (SIZE (1..ub-organization-name-length))
+    -- see also teletex-organization-name
+
+  NumericUserIdentifier ::= NumericString
+                              (SIZE (1..ub-numeric-user-id-length))
+
+  PersonalName ::= SET {
+     surname     [0] IMPLICIT PrintableString
+                      (SIZE (1..ub-surname-length)),
+     given-name  [1] IMPLICIT PrintableString
+                      (SIZE (1..ub-given-name-length)) OPTIONAL,
+     initials    [2] IMPLICIT PrintableString
+                      (SIZE (1..ub-initials-length)) OPTIONAL,
+     generation-qualifier [3] IMPLICIT PrintableString
+                      (SIZE (1..ub-generation-qualifier-length))
+                      OPTIONAL }
+    -- see also teletex-personal-name
+
+  OrganizationalUnitNames ::= SEQUENCE SIZE (1..ub-organizational-units)
+                               OF OrganizationalUnitName
+    -- see also teletex-organizational-unit-names
+
+  OrganizationalUnitName ::= PrintableString (SIZE
+                      (1..ub-organizational-unit-name-length))
+
+  -- Built-in Domain-defined Attributes
+
+  BuiltInDomainDefinedAttributes ::= SEQUENCE SIZE
+                      (1..ub-domain-defined-attributes) OF
+                      BuiltInDomainDefinedAttribute
+
+  BuiltInDomainDefinedAttribute ::= SEQUENCE {
+     type PrintableString (SIZE
+                     (1..ub-domain-defined-attribute-type-length)),
+     value PrintableString (SIZE
+                     (1..ub-domain-defined-attribute-value-length)) }
+
+  -- Extension Attributes
+
+  ExtensionAttributes ::= SET SIZE (1..ub-extension-attributes) OF
+                 ExtensionAttribute
+
+  EXTENSION-ATTRIBUTE ::= CLASS {
+      &id             INTEGER (0..ub-extension-attributes) UNIQUE,
+      &Type
+  } WITH SYNTAX { &Type IDENTIFIED BY &id }
+
+  ExtensionAttribute ::=  SEQUENCE {
+     extension-attribute-type [0] IMPLICIT EXTENSION-ATTRIBUTE.
+          &id({SupportedExtensionAttributes}),
+     extension-attribute-value [1] EXTENSION-ATTRIBUTE.
+          &Type({SupportedExtensionAttributes}
+              {@extension-attribute-type})}
+
+  SupportedExtensionAttributes EXTENSION-ATTRIBUTE ::= {
+      ea-commonName | ea-teletexCommonName | ea-teletexOrganizationName
+      | ea-teletexPersonalName | ea-teletexOrganizationalUnitNames |
+      ea-pDSName | ea-physicalDeliveryCountryName | ea-postalCode |
+      ea-physicalDeliveryOfficeName | ea-physicalDeliveryOfficeNumber |
+      ea-extensionORAddressComponents | ea-physicalDeliveryPersonalName
+      | ea-physicalDeliveryOrganizationName |
+      ea-extensionPhysicalDeliveryAddressComponents |
+      ea-unformattedPostalAddress | ea-streetAddress |
+      ea-postOfficeBoxAddress | ea-posteRestanteAddress |
+      ea-uniquePostalName | ea-localPostalAttributes |
+      ea-extendedNetworkAddress | ea-terminalType |
+      ea-teletexDomainDefinedAttributes, ... }
+
+  -- Extension types and attribute values
+
+  ea-commonName EXTENSION-ATTRIBUTE ::= { PrintableString
+      (SIZE (1..ub-common-name-length)) IDENTIFIED BY 1 }
+
+  ea-teletexCommonName EXTENSION-ATTRIBUTE ::= {TeletexString
+      (SIZE (1..ub-common-name-length)) IDENTIFIED BY 2 }
+
+  ea-teletexOrganizationName EXTENSION-ATTRIBUTE::= { TeletexString
+      (SIZE (1..ub-organization-name-length)) IDENTIFIED BY 3 }
+
+  ea-teletexPersonalName EXTENSION-ATTRIBUTE ::= {SET {
+     surname     [0] IMPLICIT TeletexString
+                      (SIZE (1..ub-surname-length)),
+     given-name  [1] IMPLICIT TeletexString
+                      (SIZE (1..ub-given-name-length)) OPTIONAL,
+     initials    [2] IMPLICIT TeletexString
+                      (SIZE (1..ub-initials-length)) OPTIONAL,
+     generation-qualifier [3] IMPLICIT TeletexString
+                      (SIZE (1..ub-generation-qualifier-length))
+                      OPTIONAL } IDENTIFIED BY 4 }
+
+  ea-teletexOrganizationalUnitNames EXTENSION-ATTRIBUTE ::=
+      { SEQUENCE SIZE (1..ub-organizational-units) OF
+            TeletexOrganizationalUnitName IDENTIFIED BY 5 }
+
+  TeletexOrganizationalUnitName ::= TeletexString
+      (SIZE (1..ub-organizational-unit-name-length))
+
+  ea-pDSName EXTENSION-ATTRIBUTE ::= {PrintableString
+      (SIZE (1..ub-pds-name-length)) IDENTIFIED BY 7 }
+
+  ea-physicalDeliveryCountryName EXTENSION-ATTRIBUTE ::= { CHOICE {
+       x121-dcc-code NumericString (SIZE
+          (ub-country-name-numeric-length)),
+       iso-3166-alpha2-code PrintableString
+          (SIZE (ub-country-name-alpha-length)) }
+       IDENTIFIED BY 8 }
+
+  ea-postalCode EXTENSION-ATTRIBUTE ::= { CHOICE {
+     numeric-code NumericString (SIZE (1..ub-postal-code-length)),
+     printable-code PrintableString (SIZE (1..ub-postal-code-length)) }
+     IDENTIFIED BY 9 }
+
+  ea-physicalDeliveryOfficeName EXTENSION-ATTRIBUTE ::=
+      { PDSParameter IDENTIFIED BY 10 }
+
+  ea-physicalDeliveryOfficeNumber EXTENSION-ATTRIBUTE ::=
+      {PDSParameter IDENTIFIED BY 11 }
+
+  ea-extensionORAddressComponents EXTENSION-ATTRIBUTE ::=
+      {PDSParameter IDENTIFIED BY 12 }
+
+  ea-physicalDeliveryPersonalName EXTENSION-ATTRIBUTE ::=
+      {PDSParameter IDENTIFIED BY 13}
+
+  ea-physicalDeliveryOrganizationName EXTENSION-ATTRIBUTE ::=
+      {PDSParameter IDENTIFIED BY 14 }
+
+  ea-extensionPhysicalDeliveryAddressComponents EXTENSION-ATTRIBUTE ::=
+      {PDSParameter IDENTIFIED BY 15 }
+
+  ea-unformattedPostalAddress EXTENSION-ATTRIBUTE ::= { SET {
+     printable-address SEQUENCE SIZE (1..ub-pds-physical-address-lines)
+           OF PrintableString (SIZE (1..ub-pds-parameter-length))
+           OPTIONAL,
+     teletex-string TeletexString
+           (SIZE (1..ub-unformatted-address-length)) OPTIONAL }
+     IDENTIFIED BY 16 }
+
+  ea-streetAddress EXTENSION-ATTRIBUTE ::=
+      {PDSParameter IDENTIFIED BY 17 }
+
+  ea-postOfficeBoxAddress EXTENSION-ATTRIBUTE ::=
+      {PDSParameter IDENTIFIED BY 18 }
+
+  ea-posteRestanteAddress EXTENSION-ATTRIBUTE ::=
+      {PDSParameter IDENTIFIED BY 19 }
+
+  ea-uniquePostalName EXTENSION-ATTRIBUTE ::=
+      { PDSParameter IDENTIFIED BY 20 }
+
+  ea-localPostalAttributes EXTENSION-ATTRIBUTE ::=
+      {PDSParameter IDENTIFIED BY 21 }
+  PDSParameter ::= SET {
+     printable-string PrintableString
+                  (SIZE(1..ub-pds-parameter-length)) OPTIONAL,
+     teletex-string TeletexString
+                  (SIZE(1..ub-pds-parameter-length)) OPTIONAL }
+
+  ea-extendedNetworkAddress EXTENSION-ATTRIBUTE ::= {
+     CHOICE {
+         e163-4-address SEQUENCE {
+             number      [0] IMPLICIT NumericString
+                   (SIZE (1..ub-e163-4-number-length)),
+             sub-address [1] IMPLICIT NumericString
+                   (SIZE (1..ub-e163-4-sub-address-length)) OPTIONAL
+         },
+         psap-address [0] IMPLICIT PresentationAddress
+     } IDENTIFIED BY 22
+  }
+
+  PresentationAddress ::= SEQUENCE {
+      pSelector     [0] EXPLICIT OCTET STRING OPTIONAL,
+      sSelector     [1] EXPLICIT OCTET STRING OPTIONAL,
+      tSelector     [2] EXPLICIT OCTET STRING OPTIONAL,
+      nAddresses    [3] EXPLICIT SET SIZE (1..MAX) OF OCTET STRING }
+
+  ea-terminalType EXTENSION-ATTRIBUTE ::= {INTEGER {
+     telex (3),
+     teletex (4),
+     g3-facsimile (5),
+     g4-facsimile (6),
+     ia5-terminal (7),
+     videotex (8) } (0..ub-integer-options)
+     IDENTIFIED BY 23 }
+
+  -- Extension Domain-defined Attributes
+
+  ea-teletexDomainDefinedAttributes EXTENSION-ATTRIBUTE ::=
+      { SEQUENCE SIZE (1..ub-domain-defined-attributes) OF
+           TeletexDomainDefinedAttribute IDENTIFIED BY 6 }
+
+  TeletexDomainDefinedAttribute ::= SEQUENCE {
+      type TeletexString
+          (SIZE (1..ub-domain-defined-attribute-type-length)),
+      value TeletexString
+          (SIZE (1..ub-domain-defined-attribute-value-length)) }
+
+  --  specifications of Upper Bounds MUST be regarded as mandatory
+  --  from Annex B of ITU-T X.411 Reference Definition of MTS Parameter
+  --  Upper Bounds
+  -- Upper Bounds
+  ub-match INTEGER ::= 128
+  ub-common-name-length INTEGER ::= 64
+  ub-country-name-alpha-length INTEGER ::= 2
+  ub-country-name-numeric-length INTEGER ::= 3
+  ub-domain-defined-attributes INTEGER ::= 4
+  ub-domain-defined-attribute-type-length INTEGER ::= 8
+  ub-domain-defined-attribute-value-length INTEGER ::= 128
+  ub-domain-name-length INTEGER ::= 16
+  ub-extension-attributes INTEGER ::= 256
+  ub-e163-4-number-length INTEGER ::= 15
+  ub-e163-4-sub-address-length INTEGER ::= 40
+  ub-generation-qualifier-length INTEGER ::= 3
+  ub-given-name-length INTEGER ::= 16
+  ub-initials-length INTEGER ::= 5
+  ub-integer-options INTEGER ::= 256
+  ub-numeric-user-id-length INTEGER ::= 32
+  ub-organization-name-length INTEGER ::= 64
+  ub-organizational-unit-name-length INTEGER ::= 32
+  ub-organizational-units INTEGER ::= 4
+  ub-pds-name-length INTEGER ::= 16
+  ub-pds-parameter-length INTEGER ::= 30
+  ub-pds-physical-address-lines INTEGER ::= 6
+  ub-postal-code-length INTEGER ::= 16
+  ub-surname-length INTEGER ::= 40
+  ub-terminal-id-length INTEGER ::= 24
+  ub-unformatted-address-length INTEGER ::= 180
+  ub-x121-address-length INTEGER ::= 16
+
+  -- Note - upper bounds on string types, such as TeletexString, are
+  -- measured in characters.  Excepting PrintableString or IA5String, a
+  -- significantly greater number of octets will be required to hold
+  -- such a value.  As a minimum, 16 octets or twice the specified
+  -- upper bound, whichever is the larger, should be allowed for
+  -- TeletexString.  For UTF8String or UniversalString, at least four
+  -- times the upper bound should be allowed.
+
+  END
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/PKIX1-PSS-OAEP-Algorithms-2009.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/PKIX1-PSS-OAEP-Algorithms-2009.asn1
new file mode 100644
index 0000000000..b1232fb8f2
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/PKIX1-PSS-OAEP-Algorithms-2009.asn1
@@ -0,0 +1,308 @@
+   PKIX1-PSS-OAEP-Algorithms-2009
+       {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+       mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-rsa-pkalgs-02(54)}
+   DEFINITIONS EXPLICIT TAGS ::=
+   BEGIN
+   IMPORTS
+
+   AlgorithmIdentifier{}, ALGORITHM, DIGEST-ALGORITHM, KEY-TRANSPORT,
+       SIGNATURE-ALGORITHM, PUBLIC-KEY, SMIME-CAPS
+   FROM AlgorithmInformation-2009
+       {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+       mechanisms(5) pkix(7) id-mod(0)
+       id-mod-algorithmInformation-02(58)}
+
+   id-sha1, mda-sha1, pk-rsa, RSAPublicKey
+   FROM PKIXAlgs-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0)
+      id-mod-pkix1-algorithms2008-02(56)};
+
+   -- ============================
+   --    Object Set exports
+   -- ============================
+   --
+   --  Define top-level symbols with all of the objects defined for
+   --  export to other modules.  These objects would be included as part
+   --  of an Object Set to restrict the set of legal values.
+   --
+
+   PublicKeys PUBLIC-KEY ::= { pk-rsaSSA-PSS | pk-rsaES-OAEP, ... }
+   SignatureAlgs SIGNATURE-ALGORITHM ::= { sa-rsaSSA-PSS, ...}
+   KeyTransportAlgs KEY-TRANSPORT ::= { kta-rsaES-OAEP, ... }
+   HashAlgs DIGEST-ALGORITHM ::= { mda-sha224 | mda-sha256 | mda-sha384
+                                      | mda-sha512, ... }
+   SMimeCaps SMIME-CAPS ::= {
+       sa-rsaSSA-PSS.&smimeCaps |
+       kta-rsaES-OAEP.&smimeCaps,
+       ...
+   }
+
+   -- =============================
+   --    Algorithm Objects
+   -- =============================
+
+   --
+   -- Public key object for PSS signatures
+   --
+
+   pk-rsaSSA-PSS PUBLIC-KEY ::= {
+       IDENTIFIER id-RSASSA-PSS
+       KEY RSAPublicKey
+       PARAMS TYPE RSASSA-PSS-params ARE optional
+        -- Private key format not in this module --
+       CERT-KEY-USAGE { nonRepudiation, digitalSignature,
+                            keyCertSign, cRLSign }
+   }
+
+   --
+   --  Signature algorithm definition for PSS signatures
+   --
+
+   sa-rsaSSA-PSS SIGNATURE-ALGORITHM ::= {
+       IDENTIFIER id-RSASSA-PSS
+       PARAMS TYPE RSASSA-PSS-params ARE required
+       HASHES { mda-sha1 | mda-sha224 | mda-sha256 | mda-sha384
+                    | mda-sha512 }
+       PUBLIC-KEYS { pk-rsa | pk-rsaSSA-PSS }
+       SMIME-CAPS { IDENTIFIED BY id-RSASSA-PSS }
+   }
+
+   --
+   --  Signature algorithm definitions for PKCS v1.5 signatures
+   --
+
+   sa-sha224WithRSAEncryption SIGNATURE-ALGORITHM ::= {
+       IDENTIFIER sha224WithRSAEncryption
+       PARAMS TYPE NULL ARE required
+       HASHES { mda-sha224 }
+       PUBLIC-KEYS { pk-rsa }
+       SMIME-CAPS { IDENTIFIED BY sha224WithRSAEncryption }
+   }
+   sha224WithRSAEncryption  OBJECT IDENTIFIER  ::=  { pkcs-1 14 }
+
+   sa-sha256WithRSAEncryption SIGNATURE-ALGORITHM ::= {
+       IDENTIFIER sha256WithRSAEncryption
+       PARAMS TYPE NULL ARE required
+       HASHES { mda-sha256 }
+       PUBLIC-KEYS { pk-rsa }
+       SMIME-CAPS { IDENTIFIED BY sha256WithRSAEncryption }
+   }
+   sha256WithRSAEncryption  OBJECT IDENTIFIER  ::=  { pkcs-1 11 }
+
+   sa-sha384WithRSAEncryption SIGNATURE-ALGORITHM ::= {
+       IDENTIFIER sha384WithRSAEncryption
+       PARAMS TYPE NULL ARE required
+       HASHES { mda-sha384 }
+       PUBLIC-KEYS { pk-rsa }
+       SMIME-CAPS { IDENTIFIED BY sha384WithRSAEncryption }
+   }
+   sha384WithRSAEncryption  OBJECT IDENTIFIER  ::=  { pkcs-1 12 }
+
+   sa-sha512WithRSAEncryption SIGNATURE-ALGORITHM ::= {
+       IDENTIFIER sha512WithRSAEncryption
+       PARAMS TYPE NULL ARE required
+       HASHES { mda-sha512 }
+       PUBLIC-KEYS { pk-rsa }
+       SMIME-CAPS { IDENTIFIED BY sha512WithRSAEncryption }
+   }
+   sha512WithRSAEncryption  OBJECT IDENTIFIER  ::=  { pkcs-1 13 }
+
+   --
+   --  Public key definition for OAEP encryption
+   --
+
+   pk-rsaES-OAEP PUBLIC-KEY ::= {
+       IDENTIFIER id-RSAES-OAEP
+       KEY RSAPublicKey
+       PARAMS TYPE RSAES-OAEP-params ARE optional
+        -- Private key format not in this module --
+       CERT-KEY-USAGE {keyEncipherment, dataEncipherment}
+   }
+
+   --
+   --  Key transport key lock definition for OAEP encryption
+   --
+
+   kta-rsaES-OAEP KEY-TRANSPORT ::= {
+       IDENTIFIER id-RSAES-OAEP
+       PARAMS TYPE RSAES-OAEP-params ARE required
+       PUBLIC-KEYS { pk-rsa | pk-rsaES-OAEP }
+       SMIME-CAPS { TYPE RSAES-OAEP-params IDENTIFIED BY id-RSAES-OAEP}
+   }
+   -- ============================
+   --   Basic object identifiers
+   -- ============================
+
+   pkcs-1  OBJECT IDENTIFIER  ::=
+       { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) 1 }
+
+   -- When rsaEncryption is used in an AlgorithmIdentifier, the
+   -- parameters MUST be present and MUST be NULL.
+   -- rsaEncryption  OBJECT IDENTIFIER  ::=  { pkcs-1 1 }
+
+   -- When id-RSAES-OAEP is used in an AlgorithmIdentifier,
+   -- and the parameters field is present, it MUST be
+   -- RSAES-OAEP-params.
+
+   id-RSAES-OAEP  OBJECT IDENTIFIER  ::=  { pkcs-1 7 }
+
+   -- When id-mgf1 is used in an AlgorithmIdentifier, the parameters
+   -- MUST be present and MUST be a HashAlgorithm.
+
+   id-mgf1  OBJECT IDENTIFIER  ::=  { pkcs-1 8 }
+
+   -- When id-pSpecified is used in an AlgorithmIdentifier, the
+   -- parameters MUST be an OCTET STRING.
+
+   id-pSpecified  OBJECT IDENTIFIER  ::=  { pkcs-1 9 }
+
+   -- When id-RSASSA-PSS is used in an AlgorithmIdentifier, and the
+   -- parameters field is present, it MUST be RSASSA-PSS-params.
+
+   id-RSASSA-PSS  OBJECT IDENTIFIER  ::=  { pkcs-1 10 }
+
+   -- When the following OIDs are used in an AlgorithmIdentifier, the
+   -- parameters SHOULD be absent, but if the parameters are present,
+   -- they MUST be NULL.
+
+   --
+   -- id-sha1 is imported from RFC 3279.  Additionally, the v1.5
+   -- signature algorithms (i.e., rsaWithSHA256) are now solely placed
+   -- in that module.
+   --
+
+   id-sha224  OBJECT IDENTIFIER  ::=
+       { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101)
+       csor(3) nistAlgorithms(4) hashalgs(2) 4 }
+
+   mda-sha224 DIGEST-ALGORITHM ::= {
+       IDENTIFIER id-sha224
+       PARAMS TYPE NULL ARE preferredAbsent
+   }
+
+   id-sha256  OBJECT IDENTIFIER  ::=
+       { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101)
+       csor(3) nistAlgorithms(4) hashalgs(2) 1 }
+
+   mda-sha256 DIGEST-ALGORITHM ::= {
+       IDENTIFIER id-sha256
+       PARAMS TYPE NULL ARE preferredAbsent
+   }
+   id-sha384  OBJECT IDENTIFIER  ::=
+       { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101)
+       csor(3) nistAlgorithms(4) hashalgs(2) 2 }
+
+   mda-sha384 DIGEST-ALGORITHM ::= {
+       IDENTIFIER id-sha384
+       PARAMS TYPE NULL ARE preferredAbsent
+   }
+   id-sha512  OBJECT IDENTIFIER  ::=
+       { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101)
+       csor(3) nistAlgorithms(4) hashalgs(2) 3 }
+
+   mda-sha512 DIGEST-ALGORITHM ::= {
+       IDENTIFIER id-sha512
+       PARAMS TYPE NULL ARE preferredAbsent
+   }
+
+   -- =============
+   --   Constants
+   -- =============
+
+   EncodingParameters ::= OCTET STRING(SIZE(0..MAX))
+
+   nullOctetString  EncodingParameters  ::=  ''H
+
+   nullParameters NULL  ::=  NULL
+
+   -- =========================
+   --   Algorithm Identifiers
+   -- =========================
+
+   HashAlgorithm  ::=  AlgorithmIdentifier{DIGEST-ALGORITHM,
+                           {HashAlgorithms}}
+
+   HashAlgorithms DIGEST-ALGORITHM ::=  {
+       { IDENTIFIER id-sha1 PARAMS TYPE NULL ARE preferredPresent } |
+       { IDENTIFIER id-sha224 PARAMS TYPE NULL ARE preferredPresent } |
+       { IDENTIFIER id-sha256 PARAMS TYPE NULL ARE preferredPresent } |
+       { IDENTIFIER id-sha384 PARAMS TYPE NULL ARE preferredPresent } |
+       { IDENTIFIER id-sha512 PARAMS TYPE NULL ARE preferredPresent }
+   }
+
+   sha1Identifier HashAlgorithm ::= {
+       algorithm id-sha1,
+       parameters NULL : NULL
+   }
+
+   --
+   --  We have a default algorithm - create the value here
+   --
+
+   MaskGenAlgorithm ::= AlgorithmIdentifier{ALGORITHM,
+                           {PKCS1MGFAlgorithms}}
+
+   mgf1SHA1 MaskGenAlgorithm ::= {
+       algorithm id-mgf1,
+       parameters HashAlgorithm : sha1Identifier
+   }
+
+   --
+   --  Define the set of mask generation functions
+   --
+   --  If the identifier is id-mgf1, any of the listed hash
+   --    algorithms may be used.
+   --
+
+   PKCS1MGFAlgorithms ALGORITHM ::= {
+       { IDENTIFIER id-mgf1 PARAMS TYPE HashAlgorithm ARE required },
+       ...
+   }
+
+   --
+   -- Define the set of known source algorithms for PSS
+   --
+
+   PSourceAlgorithm ::= AlgorithmIdentifier{ALGORITHM,
+                                                {PSS-SourceAlgorithms}}
+
+   PSS-SourceAlgorithms ALGORITHM ::= {
+       { IDENTIFIER id-pSpecified PARAMS TYPE EncodingParameters
+             ARE required },
+       ...
+   }
+   pSpecifiedEmpty PSourceAlgorithm ::=  {
+       algorithm id-pSpecified,
+       parameters EncodingParameters : nullOctetString
+   }
+
+   -- ===================
+   --   Main structures
+   -- ===================
+
+   -- AlgorithmIdentifier parameters for id-RSASSA-PSS.
+   -- Note that the tags in this Sequence are explicit.
+   -- Note: The hash algorithm in hashAlgorithm and in
+   -- maskGenAlgorithm should be the same.
+
+   RSASSA-PSS-params  ::=  SEQUENCE  {
+       hashAlgorithm     [0] HashAlgorithm DEFAULT sha1Identifier,
+       maskGenAlgorithm  [1] MaskGenAlgorithm DEFAULT mgf1SHA1,
+       saltLength        [2] INTEGER DEFAULT 20,
+       trailerField      [3] INTEGER DEFAULT 1
+   }
+
+   -- AlgorithmIdentifier parameters for id-RSAES-OAEP.
+   -- Note that the tags in this Sequence are explicit.
+   -- Note: The hash algorithm in hashFunc and in
+   -- maskGenFunc should be the same.
+
+   RSAES-OAEP-params  ::=  SEQUENCE  {
+       hashFunc          [0] HashAlgorithm DEFAULT sha1Identifier,
+       maskGenFunc       [1] MaskGenAlgorithm DEFAULT mgf1SHA1,
+       pSourceFunc       [2] PSourceAlgorithm DEFAULT
+                                 pSpecifiedEmpty
+   }
+
+   END
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/PKIX1Explicit-2009.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/PKIX1Explicit-2009.asn1
new file mode 100644
index 0000000000..613e0e9d2c
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/PKIX1Explicit-2009.asn1
@@ -0,0 +1,415 @@
+  PKIX1Explicit-2009
+      {iso(1) identified-organization(3) dod(6) internet(1)
+      security(5) mechanisms(5) pkix(7) id-mod(0)
+      id-mod-pkix1-explicit-02(51)}
+  DEFINITIONS EXPLICIT TAGS ::=
+  BEGIN
+
+  IMPORTS
+
+  Extensions{}, EXTENSION, ATTRIBUTE, SingleAttribute{}
+  FROM PKIX-CommonTypes-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-pkixCommon-02(57)}
+
+  AlgorithmIdentifier{}, PUBLIC-KEY, SIGNATURE-ALGORITHM
+  FROM AlgorithmInformation-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0)
+      id-mod-algorithmInformation-02(58)}
+
+  CertExtensions, CrlExtensions, CrlEntryExtensions
+  FROM PKIX1Implicit-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-implicit-02(59)}
+  SignatureAlgs, PublicKeys
+  FROM PKIXAlgs-2009
+      {iso(1) identified-organization(3) dod(6)
+      internet(1) security(5) mechanisms(5) pkix(7) id-mod(0) 56}
+
+  SignatureAlgs, PublicKeys
+  FROM PKIX1-PSS-OAEP-Algorithms-2009
+      {iso(1) identified-organization(3) dod(6)
+      internet(1) security(5) mechanisms(5) pkix(7) id-mod(0)
+      id-mod-pkix1-rsa-pkalgs-02(54)}
+
+  ORAddress
+  FROM PKIX-X400Address-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-x400address-02(60)};
+
+  id-pkix  OBJECT IDENTIFIER  ::=
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7)}
+
+  -- PKIX arcs
+
+  id-pe OBJECT IDENTIFIER  ::=  { id-pkix 1 }
+      -- arc for private certificate extensions
+  id-qt OBJECT IDENTIFIER ::= { id-pkix 2 }
+      -- arc for policy qualifier types
+  id-kp OBJECT IDENTIFIER ::= { id-pkix 3 }
+      -- arc for extended key purpose OIDs
+  id-ad OBJECT IDENTIFIER ::= { id-pkix 48 }
+      -- arc for access descriptors
+
+  -- policyQualifierIds for Internet policy qualifiers
+
+  id-qt-cps      OBJECT IDENTIFIER ::=  { id-qt 1 }
+      -- OID for CPS qualifier
+  id-qt-unotice  OBJECT IDENTIFIER ::=  { id-qt 2 }
+      -- OID for user notice qualifier
+
+  -- access descriptor definitions
+
+  id-ad-ocsp         OBJECT IDENTIFIER ::= { id-ad 1 }
+  id-ad-caIssuers    OBJECT IDENTIFIER ::= { id-ad 2 }
+  id-ad-timeStamping OBJECT IDENTIFIER ::= { id-ad 3 }
+  id-ad-caRepository OBJECT IDENTIFIER ::= { id-ad 5 }
+
+  -- attribute data types
+  AttributeType           ::=  ATTRIBUTE.&id
+
+  --  Replaced by SingleAttribute{}
+  --
+  -- AttributeTypeAndValue   ::=  SEQUENCE {
+  --    type    ATTRIBUTE.&id({SupportedAttributes}),
+  --    value   ATTRIBUTE.&Type({SupportedAttributes}{@type}) }
+  --
+
+  -- Suggested naming attributes: Definition of the following
+  --   information object set may be augmented to meet local
+  --   requirements.  Note that deleting members of the set may
+  --   prevent interoperability with conforming implementations.
+  -- All attributes are presented in pairs: the AttributeType
+  --   followed by the type definition for the corresponding
+  --   AttributeValue.
+
+  -- Arc for standard naming attributes
+
+  id-at OBJECT IDENTIFIER ::= { joint-iso-ccitt(2) ds(5) 4 }
+
+  -- Naming attributes of type X520name
+
+  id-at-name              AttributeType ::= { id-at 41 }
+  at-name ATTRIBUTE ::= { TYPE X520name IDENTIFIED BY id-at-name }
+
+  id-at-surname           AttributeType ::= { id-at 4 }
+  at-surname ATTRIBUTE ::= { TYPE X520name IDENTIFIED BY id-at-surname }
+
+  id-at-givenName         AttributeType ::= { id-at 42 }
+  at-givenName ATTRIBUTE ::=
+      { TYPE X520name IDENTIFIED BY id-at-givenName }
+
+  id-at-initials          AttributeType ::= { id-at 43 }
+  at-initials ATTRIBUTE ::=
+      { TYPE X520name IDENTIFIED BY id-at-initials }
+
+  id-at-generationQualifier AttributeType ::= { id-at 44 }
+  at-generationQualifier ATTRIBUTE ::=
+      { TYPE X520name IDENTIFIED BY id-at-generationQualifier }
+
+  -- Directory string type --
+
+  DirectoryString{INTEGER:maxSize} ::= CHOICE {
+      teletexString    TeletexString(SIZE (1..maxSize)),
+      printableString  PrintableString(SIZE (1..maxSize)),
+      bmpString        BMPString(SIZE (1..maxSize)),
+      universalString  UniversalString(SIZE (1..maxSize)),
+      uTF8String       UTF8String(SIZE (1..maxSize))
+  }
+
+  X520name ::= DirectoryString {ub-name}
+
+  -- Naming attributes of type X520CommonName
+
+  id-at-commonName        AttributeType ::= { id-at 3 }
+
+  at-x520CommonName ATTRIBUTE ::=
+      {TYPE X520CommonName IDENTIFIED BY id-at-commonName }
+
+  X520CommonName ::= DirectoryString {ub-common-name}
+
+  -- Naming attributes of type X520LocalityName
+
+  id-at-localityName      AttributeType ::= { id-at 7 }
+
+  at-x520LocalityName ATTRIBUTE ::=
+      { TYPE X520LocalityName IDENTIFIED BY id-at-localityName }
+  X520LocalityName ::= DirectoryString {ub-locality-name}
+
+  -- Naming attributes of type X520StateOrProvinceName
+
+  id-at-stateOrProvinceName AttributeType ::= { id-at 8 }
+
+  at-x520StateOrProvinceName ATTRIBUTE ::=
+      { TYPE DirectoryString {ub-state-name}
+          IDENTIFIED BY id-at-stateOrProvinceName }
+  X520StateOrProvinceName ::= DirectoryString {ub-state-name}
+
+  -- Naming attributes of type X520OrganizationName
+
+  id-at-organizationName  AttributeType ::= { id-at 10 }
+
+  at-x520OrganizationName ATTRIBUTE ::=
+      { TYPE DirectoryString {ub-organization-name}
+          IDENTIFIED BY id-at-organizationName }
+  X520OrganizationName ::= DirectoryString {ub-organization-name}
+
+  -- Naming attributes of type X520OrganizationalUnitName
+
+  id-at-organizationalUnitName AttributeType ::= { id-at 11 }
+
+  at-x520OrganizationalUnitName ATTRIBUTE ::=
+      { TYPE DirectoryString  {ub-organizational-unit-name}
+          IDENTIFIED BY id-at-organizationalUnitName }
+  X520OrganizationalUnitName ::= DirectoryString
+                                     {ub-organizational-unit-name}
+
+  -- Naming attributes of type X520Title
+
+  id-at-title             AttributeType ::= { id-at 12 }
+
+  at-x520Title ATTRIBUTE ::= { TYPE DirectoryString { ub-title }
+      IDENTIFIED BY id-at-title }
+
+  -- Naming attributes of type X520dnQualifier
+
+  id-at-dnQualifier       AttributeType ::= { id-at 46 }
+
+  at-x520dnQualifier ATTRIBUTE ::= { TYPE PrintableString
+      IDENTIFIED BY id-at-dnQualifier }
+
+  -- Naming attributes of type X520countryName (digraph from IS 3166)
+
+  id-at-countryName       AttributeType ::= { id-at 6 }
+
+  at-x520countryName ATTRIBUTE ::=  { TYPE PrintableString (SIZE (2))
+      IDENTIFIED BY id-at-countryName }
+
+  -- Naming attributes of type X520SerialNumber
+
+  id-at-serialNumber      AttributeType ::= { id-at 5 }
+
+  at-x520SerialNumber ATTRIBUTE ::=  {TYPE PrintableString
+      (SIZE (1..ub-serial-number)) IDENTIFIED BY id-at-serialNumber }
+
+  -- Naming attributes of type X520Pseudonym
+
+  id-at-pseudonym         AttributeType ::= { id-at 65 }
+
+  at-x520Pseudonym ATTRIBUTE ::= { TYPE DirectoryString {ub-pseudonym}
+      IDENTIFIED BY id-at-pseudonym }
+
+  -- Naming attributes of type DomainComponent (from RFC 2247)
+
+  id-domainComponent      AttributeType ::=
+       { itu-t(0) data(9) pss(2342) ucl(19200300) pilot(100)
+       pilotAttributeType(1) 25 }
+
+  at-domainComponent ATTRIBUTE ::= {TYPE IA5String
+      IDENTIFIED BY id-domainComponent }
+
+  -- Legacy attributes
+
+  pkcs-9 OBJECT IDENTIFIER ::=
+      { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) 9 }
+  id-emailAddress          AttributeType ::= { pkcs-9 1 }
+
+  at-emailAddress ATTRIBUTE ::= {TYPE IA5String
+      (SIZE (1..ub-emailaddress-length)) IDENTIFIED BY
+      id-emailAddress }
+
+  -- naming data types --
+
+  Name ::= CHOICE { -- only one possibility for now --
+      rdnSequence  RDNSequence }
+
+  RDNSequence ::= SEQUENCE OF RelativeDistinguishedName
+
+  DistinguishedName ::=   RDNSequence
+
+  RelativeDistinguishedName  ::=
+      SET SIZE (1 .. MAX) OF SingleAttribute { {SupportedAttributes} }
+
+  --  These are the known name elements for a DN
+
+  SupportedAttributes ATTRIBUTE ::= {
+      at-name | at-surname | at-givenName | at-initials |
+      at-generationQualifier | at-x520CommonName |
+      at-x520LocalityName | at-x520StateOrProvinceName |
+      at-x520OrganizationName | at-x520OrganizationalUnitName |
+      at-x520Title | at-x520dnQualifier | at-x520countryName |
+      at-x520SerialNumber | at-x520Pseudonym | at-domainComponent |
+      at-emailAddress, ... }
+
+  --
+  -- Certificate- and CRL-specific structures begin here
+  --
+
+  Certificate  ::=  SIGNED{TBSCertificate}
+
+  TBSCertificate  ::=  SEQUENCE  {
+      version         [0]  Version DEFAULT v1,
+      serialNumber         CertificateSerialNumber,
+      signature            AlgorithmIdentifier{SIGNATURE-ALGORITHM,
+                                {SignatureAlgorithms}},
+      issuer               Name,
+      validity             Validity,
+      subject              Name,
+      subjectPublicKeyInfo SubjectPublicKeyInfo,
+      ... ,
+      [[2:               -- If present, version MUST be v2
+      issuerUniqueID  [1]  IMPLICIT UniqueIdentifier OPTIONAL,
+      subjectUniqueID [2]  IMPLICIT UniqueIdentifier OPTIONAL
+      ]],
+      [[3:               -- If present, version MUST be v3 --
+      extensions      [3]  Extensions{{CertExtensions}} OPTIONAL
+      ]], ... }
+
+  Version  ::=  INTEGER  {  v1(0), v2(1), v3(2)  }
+
+  CertificateSerialNumber  ::=  INTEGER
+
+  Validity ::= SEQUENCE {
+      notBefore      Time,
+      notAfter       Time  }
+
+  Time ::= CHOICE {
+      utcTime        UTCTime,
+      generalTime    GeneralizedTime }
+
+  UniqueIdentifier  ::=  BIT STRING
+
+  SubjectPublicKeyInfo  ::=  SEQUENCE  {
+      algorithm            AlgorithmIdentifier{PUBLIC-KEY,
+                               {PublicKeyAlgorithms}},
+      subjectPublicKey     BIT STRING  }
+
+  -- CRL structures
+
+  CertificateList  ::=  SIGNED{TBSCertList}
+
+  TBSCertList  ::=  SEQUENCE  {
+      version              Version OPTIONAL,
+                                 -- if present, MUST be v2
+      signature            AlgorithmIdentifier{SIGNATURE-ALGORITHM,
+                               {SignatureAlgorithms}},
+      issuer               Name,
+      thisUpdate           Time,
+      nextUpdate           Time OPTIONAL,
+      revokedCertificates  SEQUENCE SIZE (1..MAX) OF SEQUENCE {
+          userCertificate  CertificateSerialNumber,
+          revocationDate   Time,
+          ... ,
+          [[2:                  -- if present, version MUST be v2
+          crlEntryExtensions  Extensions{{CrlEntryExtensions}}
+                                  OPTIONAL
+          ]], ...
+      } OPTIONAL,
+      ... ,
+      [[2:                       -- if present, version MUST be v2
+      crlExtensions       [0] Extensions{{CrlExtensions}}
+                                  OPTIONAL
+      ]], ... }
+
+  -- Version, Time, CertificateSerialNumber, and Extensions were
+  -- defined earlier for use in the certificate structure
+
+  --
+  --  The two object sets below should be expanded to include
+  --  those algorithms which are supported by the system.
+  --
+  --  For example:
+  --  SignatureAlgorithms SIGNATURE-ALGORITHM ::= {
+  --    PKIXAlgs-2008.SignatureAlgs, ...,
+  --        - - RFC 3279 provides the base set
+  --    PKIX1-PSS-OAEP-ALGORITHMS.SignatureAlgs |
+  --        - - RFC 4055 provides extension algs
+  --    OtherModule.SignatureAlgs
+  --        - - RFC XXXX provides additional extension algs
+  --  }
+
+  SignatureAlgorithms SIGNATURE-ALGORITHM ::= {
+      PKIXAlgs-2009.SignatureAlgs, ...,
+      PKIX1-PSS-OAEP-Algorithms-2009.SignatureAlgs }
+
+  PublicKeyAlgorithms PUBLIC-KEY ::= {
+      PKIXAlgs-2009.PublicKeys, ...,
+      PKIX1-PSS-OAEP-Algorithms-2009.PublicKeys}
+
+  -- Upper Bounds
+
+  ub-state-name INTEGER ::= 128
+  ub-organization-name INTEGER ::= 64
+  ub-organizational-unit-name INTEGER ::= 64
+  ub-title INTEGER ::= 64
+  ub-serial-number INTEGER ::= 64
+  ub-pseudonym INTEGER ::= 128
+  ub-emailaddress-length INTEGER ::= 255
+  ub-locality-name INTEGER ::= 128
+  ub-common-name INTEGER ::= 64
+  ub-name INTEGER ::= 32768
+
+  -- Note - upper bounds on string types, such as TeletexString, are
+  -- measured in characters.  Excepting PrintableString or IA5String, a
+  -- significantly greater number of octets will be required to hold
+  -- such a value.  As a minimum, 16 octets or twice the specified
+  -- upper bound, whichever is the larger, should be allowed for
+  -- TeletexString.  For UTF8String or UniversalString, at least four
+  -- times the upper bound should be allowed.
+
+  -- Information object classes used in the definition
+  -- of certificates and CRLs
+
+  -- Parameterized Type SIGNED
+  --
+  -- Three different versions of doing SIGNED:
+  --  1.  Simple and close to the previous version
+  --
+  --  SIGNED{ToBeSigned} ::= SEQUENCE {
+  --    toBeSigned  ToBeSigned,
+  --    algorithm   AlgorithmIdentifier{SIGNATURE-ALGORITHM,
+  --                    {SignatureAlgorithms}},
+  --    signature   BIT STRING
+  --  }
+
+  --  2.  From Authenticated Framework
+  --
+  --  SIGNED{ToBeSigned} ::= SEQUENCE {
+  --    toBeSigned        ToBeSigned,
+  --    COMPONENTS OF SIGNATURE{ToBeSigned}
+  --  }
+  --  SIGNATURE{ToBeSigned} ::= SEQUENCE {
+  --    algorithmIdentifier   AlgorithmIdentifier,
+  --    encrypted             ENCRYPTED-HASH{ToBeSigned}
+  --  }
+  --  ENCRYPTED-HASH{ToBeSigned} ::=
+  --    BIT STRING
+  --      (CONSTRAINED BY {
+  --        shall be the result of applying a hashing procedure to
+  --        the DER-encoded (see 4.1) octets of a value of
+  --        ToBeSigned and then applying an encipherment procedure
+  --        to those octets
+  --      })
+  --
+  --
+  --  3.  A more complex version, but one that automatically ties
+  --      together both the signature algorithm and the
+  --      signature value for automatic decoding.
+  --
+  SIGNED{ToBeSigned} ::= SEQUENCE {
+     toBeSigned           ToBeSigned,
+     algorithmIdentifier  SEQUENCE {
+         algorithm        SIGNATURE-ALGORITHM.
+                            &id({SignatureAlgorithms}),
+         parameters       SIGNATURE-ALGORITHM.
+                            &Params({SignatureAlgorithms}
+                              {@algorithmIdentifier.algorithm}) OPTIONAL
+     },
+     signature BIT STRING (CONTAINING SIGNATURE-ALGORITHM.&Value(
+                              {SignatureAlgorithms}
+                              {@algorithmIdentifier.algorithm}))
+  }
+
+  END
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/PKIX1Implicit-2009.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/PKIX1Implicit-2009.asn1
new file mode 100644
index 0000000000..3651a5249b
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/PKIX1Implicit-2009.asn1
@@ -0,0 +1,447 @@
+   PKIX1Implicit-2009
+       {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+       mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-implicit-02(59)}
+   DEFINITIONS IMPLICIT TAGS ::=
+   BEGIN
+   IMPORTS
+
+   AttributeSet{}, EXTENSION, ATTRIBUTE
+   FROM PKIX-CommonTypes-2009
+       {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+       mechanisms(5) pkix(7) id-mod(0) id-mod-pkixCommon-02(57) }
+
+   id-pe, id-kp, id-qt-unotice, id-qt-cps, ORAddress, Name,
+       RelativeDistinguishedName, CertificateSerialNumber,
+       DirectoryString{}, SupportedAttributes
+   FROM PKIX1Explicit-2009
+       {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+       mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-explicit-02(51) };
+
+   CertExtensions EXTENSION ::= {
+           ext-AuthorityKeyIdentifier | ext-SubjectKeyIdentifier |
+           ext-KeyUsage | ext-PrivateKeyUsagePeriod |
+           ext-CertificatePolicies | ext-PolicyMappings |
+           ext-SubjectAltName | ext-IssuerAltName |
+           ext-SubjectDirectoryAttributes |
+           ext-BasicConstraints | ext-NameConstraints |
+           ext-PolicyConstraints | ext-ExtKeyUsage |
+           ext-CRLDistributionPoints | ext-InhibitAnyPolicy |
+           ext-FreshestCRL | ext-AuthorityInfoAccess |
+           ext-SubjectInfoAccessSyntax, ... }
+
+   CrlExtensions EXTENSION ::= {
+           ext-AuthorityKeyIdentifier | ext-IssuerAltName |
+           ext-CRLNumber | ext-DeltaCRLIndicator |
+           ext-IssuingDistributionPoint |  ext-FreshestCRL, ... }
+
+   CrlEntryExtensions EXTENSION ::= {
+           ext-CRLReason | ext-CertificateIssuer |
+           ext-HoldInstructionCode | ext-InvalidityDate, ... }
+   -- Shared arc for standard certificate and CRL extensions
+
+   id-ce OBJECT IDENTIFIER  ::=  { joint-iso-ccitt(2) ds(5) 29 }
+
+   -- authority key identifier OID and syntax
+
+   ext-AuthorityKeyIdentifier EXTENSION ::= { SYNTAX
+       AuthorityKeyIdentifier IDENTIFIED BY
+       id-ce-authorityKeyIdentifier }
+   id-ce-authorityKeyIdentifier OBJECT IDENTIFIER ::=  { id-ce 35 }
+
+   AuthorityKeyIdentifier ::= SEQUENCE {
+       keyIdentifier             [0] KeyIdentifier            OPTIONAL,
+       authorityCertIssuer       [1] GeneralNames             OPTIONAL,
+       authorityCertSerialNumber [2] CertificateSerialNumber  OPTIONAL }
+   (WITH COMPONENTS {
+      ...,
+      authorityCertIssuer        PRESENT,
+      authorityCertSerialNumber  PRESENT
+    } |
+    WITH COMPONENTS {
+      ...,
+      authorityCertIssuer        ABSENT,
+      authorityCertSerialNumber  ABSENT
+    })
+
+   KeyIdentifier ::= OCTET STRING
+
+   -- subject key identifier OID and syntax
+
+   ext-SubjectKeyIdentifier EXTENSION ::= { SYNTAX
+       KeyIdentifier IDENTIFIED BY id-ce-subjectKeyIdentifier }
+   id-ce-subjectKeyIdentifier OBJECT IDENTIFIER ::=  { id-ce 14 }
+
+   -- key usage extension OID and syntax
+
+   ext-KeyUsage EXTENSION ::= { SYNTAX
+       KeyUsage IDENTIFIED BY id-ce-keyUsage }
+   id-ce-keyUsage OBJECT IDENTIFIER ::=  { id-ce 15 }
+
+   KeyUsage ::= BIT STRING {
+        digitalSignature        (0),
+        nonRepudiation          (1), --  recent editions of X.509 have
+                                     --  renamed this bit to
+                                     --  contentCommitment
+        keyEncipherment         (2),
+        dataEncipherment        (3),
+        keyAgreement            (4),
+        keyCertSign             (5),
+        cRLSign                 (6),
+        encipherOnly            (7),
+        decipherOnly            (8)
+    }
+
+   -- private key usage period extension OID and syntax
+
+   ext-PrivateKeyUsagePeriod EXTENSION ::= { SYNTAX
+       PrivateKeyUsagePeriod IDENTIFIED BY id-ce-privateKeyUsagePeriod }
+   id-ce-privateKeyUsagePeriod OBJECT IDENTIFIER ::=  { id-ce 16 }
+
+   PrivateKeyUsagePeriod ::= SEQUENCE {
+        notBefore       [0]     GeneralizedTime OPTIONAL,
+        notAfter        [1]     GeneralizedTime OPTIONAL }
+   (WITH COMPONENTS {..., notBefore  PRESENT } |
+    WITH COMPONENTS {..., notAfter  PRESENT })
+
+   -- certificate policies extension OID and syntax
+
+   ext-CertificatePolicies EXTENSION ::= { SYNTAX
+       CertificatePolicies IDENTIFIED BY id-ce-certificatePolicies}
+   id-ce-certificatePolicies OBJECT IDENTIFIER ::=  { id-ce 32 }
+
+   CertificatePolicies ::= SEQUENCE SIZE (1..MAX) OF PolicyInformation
+
+   PolicyInformation ::= SEQUENCE {
+        policyIdentifier   CertPolicyId,
+        policyQualifiers   SEQUENCE SIZE (1..MAX) OF
+                PolicyQualifierInfo OPTIONAL }
+
+   CertPolicyId ::= OBJECT IDENTIFIER
+
+   CERT-POLICY-QUALIFIER ::= TYPE-IDENTIFIER
+
+   PolicyQualifierInfo ::= SEQUENCE {
+          policyQualifierId  CERT-POLICY-QUALIFIER.
+               &id({PolicyQualifierId}),
+          qualifier          CERT-POLICY-QUALIFIER.
+               &Type({PolicyQualifierId}{@policyQualifierId})}
+
+   -- Implementations that recognize additional policy qualifiers MUST
+   -- augment the following definition for PolicyQualifierId
+
+   PolicyQualifierId CERT-POLICY-QUALIFIER ::=
+       { pqid-cps | pqid-unotice, ... }
+
+   pqid-cps CERT-POLICY-QUALIFIER ::= { CPSuri IDENTIFIED BY id-qt-cps }
+   pqid-unotice CERT-POLICY-QUALIFIER ::= { UserNotice
+       IDENTIFIED BY id-qt-unotice }
+
+   -- CPS pointer qualifier
+
+   CPSuri ::= IA5String
+
+   -- user notice qualifier
+
+   UserNotice ::= SEQUENCE {
+        noticeRef        NoticeReference OPTIONAL,
+        explicitText     DisplayText OPTIONAL}
+
+   --
+   --  This is not made explicit in the text
+   --
+   -- {WITH COMPONENTS {..., noticeRef PRESENT} |
+   --  WITH COMPONENTS {..., DisplayText PRESENT }}
+
+   NoticeReference ::= SEQUENCE {
+        organization     DisplayText,
+        noticeNumbers    SEQUENCE OF INTEGER }
+
+   DisplayText ::= CHOICE {
+        ia5String        IA5String      (SIZE (1..200)),
+        visibleString    VisibleString  (SIZE (1..200)),
+        bmpString        BMPString      (SIZE (1..200)),
+        utf8String       UTF8String     (SIZE (1..200)) }
+
+   -- policy mapping extension OID and syntax
+
+   ext-PolicyMappings EXTENSION ::= { SYNTAX
+       PolicyMappings IDENTIFIED BY id-ce-policyMappings }
+   id-ce-policyMappings OBJECT IDENTIFIER ::=  { id-ce 33 }
+
+   PolicyMappings ::= SEQUENCE SIZE (1..MAX) OF SEQUENCE {
+       issuerDomainPolicy      CertPolicyId,
+       subjectDomainPolicy     CertPolicyId
+   }
+
+   -- subject alternative name extension OID and syntax
+
+   ext-SubjectAltName EXTENSION ::= { SYNTAX
+       GeneralNames IDENTIFIED BY id-ce-subjectAltName }
+   id-ce-subjectAltName OBJECT IDENTIFIER ::=  { id-ce 17 }
+
+   GeneralNames ::= SEQUENCE SIZE (1..MAX) OF GeneralName
+
+   GeneralName ::= CHOICE {
+        otherName                   [0]  INSTANCE OF OTHER-NAME,
+        rfc822Name                  [1]  IA5String,
+        dNSName                     [2]  IA5String,
+        x400Address                 [3]  ORAddress,
+        directoryName               [4]  Name,
+        ediPartyName                [5]  EDIPartyName,
+        uniformResourceIdentifier   [6]  IA5String,
+        iPAddress                   [7]  OCTET STRING,
+        registeredID                [8]  OBJECT IDENTIFIER
+   }
+
+   -- AnotherName replaces OTHER-NAME ::= TYPE-IDENTIFIER, as
+   -- TYPE-IDENTIFIER is not supported in the '88 ASN.1 syntax
+
+   OTHER-NAME ::= TYPE-IDENTIFIER
+
+   EDIPartyName ::= SEQUENCE {
+       nameAssigner    [0] DirectoryString {ubMax} OPTIONAL,
+       partyName       [1] DirectoryString {ubMax}
+   }
+
+   -- issuer alternative name extension OID and syntax
+
+   ext-IssuerAltName EXTENSION ::= { SYNTAX
+       GeneralNames IDENTIFIED BY id-ce-issuerAltName }
+   id-ce-issuerAltName OBJECT IDENTIFIER ::=  { id-ce 18 }
+
+   ext-SubjectDirectoryAttributes EXTENSION ::= { SYNTAX
+       SubjectDirectoryAttributes IDENTIFIED BY
+       id-ce-subjectDirectoryAttributes }
+   id-ce-subjectDirectoryAttributes OBJECT IDENTIFIER ::=  { id-ce 9 }
+
+   SubjectDirectoryAttributes ::= SEQUENCE SIZE (1..MAX) OF
+       AttributeSet{{SupportedAttributes}}
+
+   -- basic constraints extension OID and syntax
+
+   ext-BasicConstraints EXTENSION ::= { SYNTAX
+       BasicConstraints IDENTIFIED BY id-ce-basicConstraints }
+   id-ce-basicConstraints OBJECT IDENTIFIER ::=  { id-ce 19 }
+
+   BasicConstraints ::= SEQUENCE {
+        cA                      BOOLEAN DEFAULT FALSE,
+        pathLenConstraint       INTEGER (0..MAX) OPTIONAL
+   }
+
+   -- name constraints extension OID and syntax
+   ext-NameConstraints EXTENSION ::= { SYNTAX
+       NameConstraints IDENTIFIED BY id-ce-nameConstraints }
+   id-ce-nameConstraints OBJECT IDENTIFIER ::=  { id-ce 30 }
+
+   NameConstraints ::= SEQUENCE {
+        permittedSubtrees       [0] GeneralSubtrees OPTIONAL,
+        excludedSubtrees        [1] GeneralSubtrees OPTIONAL
+   }
+   --
+   --  This is a constraint in the issued certificates by CAs, but is
+   --  not a requirement on EEs.
+   --
+   -- (WITH COMPONENTS { ..., permittedSubtrees PRESENT} |
+   --  WITH COMPONENTS { ..., excludedSubtrees PRESENT }}
+
+   GeneralSubtrees ::= SEQUENCE SIZE (1..MAX) OF GeneralSubtree
+
+   GeneralSubtree ::= SEQUENCE {
+        base                GeneralName,
+        minimum         [0] BaseDistance DEFAULT 0,
+        maximum         [1] BaseDistance OPTIONAL
+   }
+
+   BaseDistance ::= INTEGER (0..MAX)
+
+   -- policy constraints extension OID and syntax
+
+   ext-PolicyConstraints EXTENSION ::= { SYNTAX
+       PolicyConstraints IDENTIFIED BY id-ce-policyConstraints }
+   id-ce-policyConstraints OBJECT IDENTIFIER ::=  { id-ce 36 }
+
+   PolicyConstraints ::= SEQUENCE {
+        requireExplicitPolicy           [0] SkipCerts OPTIONAL,
+        inhibitPolicyMapping            [1] SkipCerts OPTIONAL }
+   --
+   --  This is a constraint in the issued certificates by CAs,
+   --  but is not a requirement for EEs
+   --
+   -- (WITH COMPONENTS { ..., requireExplicitPolicy PRESENT} |
+   --  WITH COMPONENTS { ..., inhibitPolicyMapping PRESENT})
+
+   SkipCerts ::= INTEGER (0..MAX)
+
+   -- CRL distribution points extension OID and syntax
+
+   ext-CRLDistributionPoints EXTENSION ::= { SYNTAX
+       CRLDistributionPoints IDENTIFIED BY id-ce-cRLDistributionPoints}
+   id-ce-cRLDistributionPoints     OBJECT IDENTIFIER  ::=  {id-ce 31}
+   CRLDistributionPoints ::= SEQUENCE SIZE (1..MAX) OF DistributionPoint
+
+   DistributionPoint ::= SEQUENCE {
+        distributionPoint       [0] DistributionPointName OPTIONAL,
+        reasons                 [1] ReasonFlags OPTIONAL,
+        cRLIssuer               [2] GeneralNames OPTIONAL
+   }
+   --
+   --  This is not a requirement in the text, but it seems as if it
+   --      should be
+   --
+   --(WITH COMPONENTS {..., distributionPoint PRESENT} |
+   -- WITH COMPONENTS {..., cRLIssuer PRESENT})
+
+   DistributionPointName ::= CHOICE {
+        fullName                [0] GeneralNames,
+        nameRelativeToCRLIssuer [1] RelativeDistinguishedName
+   }
+
+   ReasonFlags ::= BIT STRING {
+        unused                  (0),
+        keyCompromise           (1),
+        cACompromise            (2),
+        affiliationChanged      (3),
+        superseded              (4),
+        cessationOfOperation    (5),
+        certificateHold         (6),
+        privilegeWithdrawn      (7),
+        aACompromise            (8)
+    }
+
+   -- extended key usage extension OID and syntax
+
+   ext-ExtKeyUsage EXTENSION ::= { SYNTAX
+       ExtKeyUsageSyntax IDENTIFIED BY id-ce-extKeyUsage }
+   id-ce-extKeyUsage OBJECT IDENTIFIER ::= {id-ce 37}
+
+   ExtKeyUsageSyntax ::= SEQUENCE SIZE (1..MAX) OF KeyPurposeId
+
+   KeyPurposeId ::= OBJECT IDENTIFIER
+
+   -- permit unspecified key uses
+
+   anyExtendedKeyUsage OBJECT IDENTIFIER ::= { id-ce-extKeyUsage 0 }
+
+   -- extended key purpose OIDs
+
+   id-kp-serverAuth       OBJECT IDENTIFIER ::= { id-kp 1 }
+   id-kp-clientAuth       OBJECT IDENTIFIER ::= { id-kp 2 }
+   id-kp-codeSigning      OBJECT IDENTIFIER ::= { id-kp 3 }
+   id-kp-emailProtection  OBJECT IDENTIFIER ::= { id-kp 4 }
+   id-kp-timeStamping     OBJECT IDENTIFIER ::= { id-kp 8 }
+   id-kp-OCSPSigning      OBJECT IDENTIFIER ::= { id-kp 9 }
+
+   -- inhibit any policy OID and syntax
+
+   ext-InhibitAnyPolicy EXTENSION  ::= {SYNTAX
+       SkipCerts IDENTIFIED BY id-ce-inhibitAnyPolicy }
+   id-ce-inhibitAnyPolicy OBJECT IDENTIFIER ::=  { id-ce 54 }
+
+   -- freshest (delta)CRL extension OID and syntax
+
+   ext-FreshestCRL EXTENSION ::= {SYNTAX
+       CRLDistributionPoints IDENTIFIED BY id-ce-freshestCRL }
+   id-ce-freshestCRL OBJECT IDENTIFIER ::=  { id-ce 46 }
+
+   -- authority info access
+
+   ext-AuthorityInfoAccess EXTENSION ::= { SYNTAX
+       AuthorityInfoAccessSyntax IDENTIFIED BY
+       id-pe-authorityInfoAccess }
+   id-pe-authorityInfoAccess OBJECT IDENTIFIER ::= { id-pe 1 }
+
+   AuthorityInfoAccessSyntax  ::=
+           SEQUENCE SIZE (1..MAX) OF AccessDescription
+
+   AccessDescription  ::=  SEQUENCE {
+           accessMethod          OBJECT IDENTIFIER,
+           accessLocation        GeneralName  }
+
+   -- subject info access
+
+   ext-SubjectInfoAccessSyntax EXTENSION ::= { SYNTAX
+       SubjectInfoAccessSyntax IDENTIFIED BY id-pe-subjectInfoAccess }
+   id-pe-subjectInfoAccess OBJECT IDENTIFIER ::= { id-pe 11 }
+
+   SubjectInfoAccessSyntax  ::=
+           SEQUENCE SIZE (1..MAX) OF AccessDescription
+
+   -- CRL number extension OID and syntax
+
+   ext-CRLNumber EXTENSION ::= {SYNTAX
+       INTEGER (0..MAX) IDENTIFIED BY id-ce-cRLNumber }
+   id-ce-cRLNumber OBJECT IDENTIFIER ::= { id-ce 20 }
+
+   CRLNumber ::= INTEGER (0..MAX)
+   -- issuing distribution point extension OID and syntax
+
+   ext-IssuingDistributionPoint EXTENSION ::= { SYNTAX
+       IssuingDistributionPoint IDENTIFIED BY
+       id-ce-issuingDistributionPoint }
+   id-ce-issuingDistributionPoint OBJECT IDENTIFIER ::= { id-ce 28 }
+
+   IssuingDistributionPoint ::= SEQUENCE {
+        distributionPoint          [0] DistributionPointName OPTIONAL,
+        onlyContainsUserCerts      [1] BOOLEAN DEFAULT FALSE,
+        onlyContainsCACerts        [2] BOOLEAN DEFAULT FALSE,
+        onlySomeReasons            [3] ReasonFlags OPTIONAL,
+        indirectCRL                [4] BOOLEAN DEFAULT FALSE,
+        onlyContainsAttributeCerts [5] BOOLEAN DEFAULT FALSE
+   }
+           -- at most one of onlyContainsUserCerts, onlyContainsCACerts,
+           -- or onlyContainsAttributeCerts may be set to TRUE.
+
+   ext-DeltaCRLIndicator EXTENSION ::= { SYNTAX
+       CRLNumber IDENTIFIED BY id-ce-deltaCRLIndicator }
+   id-ce-deltaCRLIndicator OBJECT IDENTIFIER ::= { id-ce 27 }
+
+   -- CRL reasons extension OID and syntax
+
+   ext-CRLReason EXTENSION ::= { SYNTAX
+       CRLReason IDENTIFIED BY id-ce-cRLReasons }
+   id-ce-cRLReasons OBJECT IDENTIFIER ::= { id-ce 21 }
+
+   CRLReason ::= ENUMERATED {
+        unspecified             (0),
+        keyCompromise           (1),
+        cACompromise            (2),
+        affiliationChanged      (3),
+        superseded              (4),
+        cessationOfOperation    (5),
+        certificateHold         (6),
+        removeFromCRL           (8),
+        privilegeWithdrawn      (9),
+        aACompromise           (10)
+   }
+
+   -- certificate issuer CRL entry extension OID and syntax
+
+   ext-CertificateIssuer EXTENSION ::= { SYNTAX
+       GeneralNames IDENTIFIED BY id-ce-certificateIssuer }
+   id-ce-certificateIssuer OBJECT IDENTIFIER ::= { id-ce 29 }
+
+   -- hold instruction extension OID and syntax
+   ext-HoldInstructionCode EXTENSION ::= { SYNTAX
+       OBJECT IDENTIFIER IDENTIFIED BY id-ce-holdInstructionCode }
+   id-ce-holdInstructionCode OBJECT IDENTIFIER ::= { id-ce 23 }
+
+   -- ANSI x9 holdinstructions
+
+   holdInstruction OBJECT IDENTIFIER ::=
+             {joint-iso-itu-t(2) member-body(2) us(840) x9cm(10040) 2}
+   id-holdinstruction-none OBJECT IDENTIFIER  ::=
+                   {holdInstruction 1} -- deprecated
+   id-holdinstruction-callissuer OBJECT IDENTIFIER ::=
+                   {holdInstruction 2}
+   id-holdinstruction-reject OBJECT IDENTIFIER ::=
+                   {holdInstruction 3}
+
+   -- invalidity date CRL entry extension OID and syntax
+
+   ext-InvalidityDate EXTENSION  ::=  { SYNTAX
+       GeneralizedTime IDENTIFIED BY id-ce-invalidityDate }
+   id-ce-invalidityDate OBJECT IDENTIFIER ::= { id-ce 24 }
+   -- Upper bounds
+   ubMax INTEGER ::= 32768
+
+   END
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/PKIXAlgs-2009.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/PKIXAlgs-2009.asn1
new file mode 100644
index 0000000000..d58bcb5b19
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/PKIXAlgs-2009.asn1
@@ -0,0 +1,528 @@
+   PKIXAlgs-2009 { iso(1) identified-organization(3) dod(6)
+     internet(1) security(5) mechanisms(5) pkix(7) id-mod(0)
+     id-mod-pkix1-algorithms2008-02(56) }
+
+   DEFINITIONS EXPLICIT TAGS ::=
+   BEGIN
+   IMPORTS
+
+   PUBLIC-KEY, SIGNATURE-ALGORITHM, DIGEST-ALGORITHM, SMIME-CAPS
+   FROM AlgorithmInformation-2009
+       {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+       mechanisms(5) pkix(7) id-mod(0)
+       id-mod-algorithmInformation-02(58)}
+
+   mda-sha224, mda-sha256, mda-sha384, mda-sha512
+   FROM PKIX1-PSS-OAEP-Algorithms-2009
+       {iso(1) identified-organization(3) dod(6) internet(1)
+       security(5) mechanisms(5) pkix(7) id-mod(0)
+       id-mod-pkix1-rsa-pkalgs-02(54)} ;
+
+   --
+   -- Public Key (pk-) Algorithms
+   --
+
+   PublicKeys PUBLIC-KEY ::= {
+    pk-rsa  |
+    pk-dsa  |
+    pk-dh   |
+    pk-kea,
+    ...,
+    pk-ec   |
+    pk-ecDH |
+    pk-ecMQV
+   }
+
+   --
+   -- Signature Algorithms (sa-)
+   --
+
+   SignatureAlgs SIGNATURE-ALGORITHM ::= {
+    sa-rsaWithMD2      |
+    sa-rsaWithMD5      |
+    sa-rsaWithSHA1     |
+    sa-dsaWithSHA1     |
+    sa-ecdsaWithSHA1,
+    ..., -- Extensible
+    sa-dsaWithSHA224   |
+    sa-dsaWithSHA256   |
+    sa-ecdsaWithSHA224 |
+    sa-ecdsaWithSHA256 |
+    sa-ecdsaWithSHA384 |
+    sa-ecdsaWithSHA512
+   }
+
+   --
+   -- S/MIME CAPS for algorithms in this document
+   --
+   -- For all of the algorithms laid out in this document, the
+   -- parameters field for the S/MIME capabilities is defined as
+   -- ABSENT as there are no specific values that need to be known
+   -- by the receiver for negotiation.
+
+   --
+
+   SMimeCaps SMIME-CAPS ::= {
+    sa-rsaWithMD2.&smimeCaps      |
+    sa-rsaWithMD5.&smimeCaps      |
+    sa-rsaWithSHA1.&smimeCaps     |
+    sa-dsaWithSHA1.&smimeCaps     |
+    sa-dsaWithSHA224.&smimeCaps   |
+    sa-dsaWithSHA256.&smimeCaps   |
+    sa-ecdsaWithSHA1.&smimeCaps   |
+    sa-ecdsaWithSHA224.&smimeCaps |
+    sa-ecdsaWithSHA256.&smimeCaps |
+    sa-ecdsaWithSHA384.&smimeCaps |
+    sa-ecdsaWithSHA512.&smimeCaps,
+    ... }
+
+   -- RSA PK Algorithm, Parameters, and Keys
+
+   pk-rsa PUBLIC-KEY ::= {
+    IDENTIFIER rsaEncryption
+    KEY RSAPublicKey
+    PARAMS TYPE NULL ARE absent
+    -- Private key format not in this module --
+    CERT-KEY-USAGE {digitalSignature, nonRepudiation,
+    keyEncipherment, dataEncipherment, keyCertSign, cRLSign}
+   }
+
+   rsaEncryption OBJECT IDENTIFIER ::= {
+    iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1)
+    pkcs-1(1) 1 }
+
+   RSAPublicKey ::= SEQUENCE {
+    modulus         INTEGER, -- n
+    publicExponent  INTEGER  -- e
+   }
+
+   -- DSA PK Algorithm, Parameters, and Keys
+
+   pk-dsa PUBLIC-KEY ::= {
+    IDENTIFIER id-dsa
+    KEY DSAPublicKey
+    PARAMS TYPE DSA-Params ARE inheritable
+    -- Private key format not in this module --
+    CERT-KEY-USAGE { digitalSignature, nonRepudiation, keyCertSign,
+                        cRLSign }
+   }
+
+   id-dsa OBJECT IDENTIFIER ::= {
+    iso(1) member-body(2) us(840) x9-57(10040) x9algorithm(4) 1 }
+
+   DSA-Params ::= SEQUENCE {
+    p  INTEGER,
+    q  INTEGER,
+    g  INTEGER
+   }
+
+   DSAPublicKey ::= INTEGER --  public key, y
+
+   -- Diffie-Hellman PK Algorithm, Parameters, and Keys
+
+   pk-dh PUBLIC-KEY ::= {
+    IDENTIFIER dhpublicnumber
+    KEY DHPublicKey
+    PARAMS TYPE DomainParameters ARE inheritable
+    -- Private key format not in this module --
+    CERT-KEY-USAGE {keyAgreement, encipherOnly, decipherOnly }
+   }
+
+   dhpublicnumber OBJECT IDENTIFIER ::= {
+    iso(1) member-body(2) us(840) ansi-x942(10046)
+    number-type(2) 1 }
+
+   DomainParameters ::= SEQUENCE {
+    p                INTEGER,           -- odd prime, p=jq +1
+    g                INTEGER,           -- generator, g
+    q                INTEGER,           -- factor of p-1
+    j                INTEGER OPTIONAL,  -- subgroup factor, j>= 2
+    validationParams  ValidationParams OPTIONAL
+   }
+
+   ValidationParams ::= SEQUENCE {
+    seed         BIT STRING,
+    pgenCounter  INTEGER
+   }
+
+   DiffieHellmanPublicNumber ::= INTEGER   -- according to http://wikisec.free.fr/crypto/crypto.html
+
+   DHPublicKey ::= INTEGER  -- public key, y = g^x mod p
+
+   -- KEA PK Algorithm and Parameters
+
+   pk-kea PUBLIC-KEY ::= {
+    IDENTIFIER id-keyExchangeAlgorithm
+    -- key is not encoded --
+    PARAMS TYPE KEA-Params-Id ARE required
+    -- Private key format not in this module --
+    CERT-KEY-USAGE {keyAgreement, encipherOnly, decipherOnly }
+   }
+   id-keyExchangeAlgorithm OBJECT IDENTIFIER ::= {
+       joint-iso-itu-t(2) country(16) us(840) organization(1)
+       gov(101) dod(2) infosec(1) algorithms(1) 22 }
+
+   KEA-Params-Id ::= OCTET STRING
+
+   -- Elliptic Curve (EC) Signatures: Unrestricted Algorithms
+   --  (Section 2.1.1 of RFC 5480)
+   --
+   -- EC Unrestricted Algorithm ID -- -- this is used for ECDSA
+
+   pk-ec PUBLIC-KEY ::= {
+    IDENTIFIER id-ecPublicKey
+    KEY ECPoint
+    PARAMS TYPE ECParameters ARE required
+    -- Private key format not in this module --
+    CERT-KEY-USAGE { digitalSignature, nonRepudiation, keyAgreement,
+                         keyCertSign, cRLSign }
+   }
+
+   ECPoint ::= OCTET STRING -- see RFC 5480 for syntax and restrictions
+
+   id-ecPublicKey OBJECT IDENTIFIER ::= {
+    iso(1) member-body(2) us(840) ansi-X9-62(10045) keyType(2) 1 }
+
+   -- Elliptic Curve (EC) Signatures: Restricted Algorithms
+   --  (Section 2.1.2 of RFC 5480)
+   --
+   -- EC Diffie-Hellman Algorithm ID
+
+   pk-ecDH PUBLIC-KEY ::= {
+    IDENTIFIER id-ecDH
+    KEY ECPoint
+    PARAMS TYPE ECParameters ARE required
+    -- Private key format not in this module --
+    CERT-KEY-USAGE { keyAgreement, encipherOnly, decipherOnly }
+   }
+
+   id-ecDH OBJECT IDENTIFIER ::= {
+    iso(1) identified-organization(3) certicom(132) schemes(1)
+    ecdh(12) }
+
+   -- EC Menezes-Qu-Vanstone Algorithm ID
+
+   pk-ecMQV PUBLIC-KEY ::= {
+    IDENTIFIER id-ecMQV
+    KEY ECPoint
+    PARAMS TYPE ECParameters ARE required
+    -- Private key format not in this module --
+    CERT-KEY-USAGE { keyAgreement, encipherOnly, decipherOnly }
+   }
+
+   id-ecMQV OBJECT IDENTIFIER ::= {
+    iso(1) identified-organization(3) certicom(132) schemes(1)
+    ecmqv(13) }
+
+   -- Parameters and Keys for both Restricted and Unrestricted EC
+
+   ECParameters ::= CHOICE {
+    namedCurve      CURVE.&id({NamedCurve})
+    -- implicitCurve   NULL
+      -- implicitCurve MUST NOT be used in PKIX
+    -- specifiedCurve  SpecifiedCurve
+      -- specifiedCurve MUST NOT be used in PKIX
+      -- Details for specifiedCurve can be found in [X9.62]
+      -- Any future additions to this CHOICE should be coordinated
+      -- with ANSI X.9.
+   }
+   -- If you need to be able to decode ANSI X.9 parameter structures,
+   -- uncomment the implicitCurve and specifiedCurve above, and also
+   -- uncomment the following:
+   --(WITH COMPONENTS {namedCurve PRESENT})
+
+   -- Sec 2.1.1.1 Named Curve
+
+   CURVE ::= CLASS { &id OBJECT IDENTIFIER UNIQUE }
+    WITH SYNTAX { ID &id }
+
+   NamedCurve CURVE ::= {
+   { ID secp192r1 } | { ID sect163k1 } | { ID sect163r2 } |
+   { ID secp224r1 } | { ID sect233k1 } | { ID sect233r1 } |
+   { ID secp256r1 } | { ID sect283k1 } | { ID sect283r1 } |
+   { ID secp384r1 } | { ID sect409k1 } | { ID sect409r1 } |
+   { ID secp521r1 } | { ID sect571k1 } | { ID sect571r1 },
+   ... -- Extensible
+   }
+
+   -- Note in [X9.62] the curves are referred to as 'ansiX9' as
+   -- opposed to 'sec'.  For example, secp192r1 is the same curve as
+   -- ansix9p192r1.
+
+   -- Note that in [PKI-ALG] the secp192r1 curve was referred to as
+   -- prime192v1 and the secp256r1 curve was referred to as
+   -- prime256v1.
+
+   -- Note that [FIPS186-3] refers to secp192r1 as P-192,
+   -- secp224r1 as P-224, secp256r1 as P-256, secp384r1 as P-384,
+   -- and secp521r1 as P-521.
+
+   secp192r1 OBJECT IDENTIFIER ::= {
+    iso(1) member-body(2) us(840) ansi-X9-62(10045) curves(3)
+    prime(1) 1 }
+
+   sect163k1 OBJECT IDENTIFIER ::= {
+    iso(1) identified-organization(3) certicom(132) curve(0) 1 }
+
+   sect163r2 OBJECT IDENTIFIER ::= {
+    iso(1) identified-organization(3) certicom(132) curve(0) 15 }
+
+   secp224r1 OBJECT IDENTIFIER ::= {
+    iso(1) identified-organization(3) certicom(132) curve(0) 33 }
+
+   sect233k1 OBJECT IDENTIFIER ::= {
+    iso(1) identified-organization(3) certicom(132) curve(0) 26 }
+
+   sect233r1 OBJECT IDENTIFIER ::= {
+    iso(1) identified-organization(3) certicom(132) curve(0) 27 }
+
+   secp256r1 OBJECT IDENTIFIER ::= {
+    iso(1) member-body(2) us(840) ansi-X9-62(10045) curves(3)
+    prime(1) 7 }
+
+   sect283k1 OBJECT IDENTIFIER ::= {
+    iso(1) identified-organization(3) certicom(132) curve(0) 16 }
+
+   sect283r1 OBJECT IDENTIFIER ::= {
+    iso(1) identified-organization(3) certicom(132) curve(0) 17 }
+
+   secp384r1 OBJECT IDENTIFIER ::= {
+    iso(1) identified-organization(3) certicom(132) curve(0) 34 }
+
+   sect409k1 OBJECT IDENTIFIER ::= {
+    iso(1) identified-organization(3) certicom(132) curve(0) 36 }
+
+   sect409r1 OBJECT IDENTIFIER ::= {
+    iso(1) identified-organization(3) certicom(132) curve(0) 37 }
+
+   secp521r1 OBJECT IDENTIFIER ::= {
+    iso(1) identified-organization(3) certicom(132) curve(0) 35 }
+
+   sect571k1 OBJECT IDENTIFIER ::= {
+    iso(1) identified-organization(3) certicom(132) curve(0) 38 }
+
+   sect571r1 OBJECT IDENTIFIER ::= {
+    iso(1) identified-organization(3) certicom(132) curve(0) 39 }
+
+   -- RSA with MD-2
+
+   sa-rsaWithMD2 SIGNATURE-ALGORITHM ::= {
+    IDENTIFIER md2WithRSAEncryption
+    PARAMS TYPE NULL ARE required
+    HASHES { mda-md2 }
+    PUBLIC-KEYS { pk-rsa }
+    SMIME-CAPS { IDENTIFIED BY md2WithRSAEncryption }
+   }
+
+   md2WithRSAEncryption OBJECT IDENTIFIER ::= {
+    iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1)
+    pkcs-1(1) 2 }
+
+   -- RSA with MD-5
+
+   sa-rsaWithMD5 SIGNATURE-ALGORITHM ::= {
+    IDENTIFIER md5WithRSAEncryption
+    PARAMS TYPE NULL ARE required
+    HASHES { mda-md5 }
+    PUBLIC-KEYS { pk-rsa }
+    SMIME-CAPS { IDENTIFIED BY md5WithRSAEncryption }
+   }
+
+   md5WithRSAEncryption OBJECT IDENTIFIER ::= {
+    iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1)
+    pkcs-1(1) 4 }
+
+   -- RSA with SHA-1
+
+   sa-rsaWithSHA1 SIGNATURE-ALGORITHM ::= {
+    IDENTIFIER sha1WithRSAEncryption
+    PARAMS TYPE NULL ARE required
+    HASHES { mda-sha1 }
+    PUBLIC-KEYS { pk-rsa }
+    SMIME-CAPS {IDENTIFIED BY sha1WithRSAEncryption }
+   }
+
+   sha1WithRSAEncryption OBJECT IDENTIFIER ::= {
+    iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1)
+    pkcs-1(1) 5 }
+
+   -- DSA with SHA-1
+
+   sa-dsaWithSHA1 SIGNATURE-ALGORITHM ::= {
+    IDENTIFIER dsa-with-sha1
+    VALUE DSA-Sig-Value
+    PARAMS TYPE NULL ARE absent
+    HASHES { mda-sha1 }
+    PUBLIC-KEYS { pk-dsa }
+    SMIME-CAPS { IDENTIFIED BY dsa-with-sha1 }
+   }
+
+   dsa-with-sha1 OBJECT IDENTIFIER ::=  {
+    iso(1) member-body(2) us(840) x9-57(10040) x9algorithm(4) 3 }
+
+   -- DSA with SHA-224
+
+   sa-dsaWithSHA224 SIGNATURE-ALGORITHM ::= {
+    IDENTIFIER dsa-with-sha224
+    VALUE DSA-Sig-Value
+    PARAMS TYPE NULL ARE absent
+    HASHES { mda-sha224 }
+    PUBLIC-KEYS { pk-dsa }
+    SMIME-CAPS { IDENTIFIED BY dsa-with-sha224 }
+   }
+
+   dsa-with-sha224 OBJECT IDENTIFIER  ::=  {
+    joint-iso-ccitt(2) country(16) us(840) organization(1) gov(101)
+    csor(3) algorithms(4) id-dsa-with-sha2(3) 1 }
+
+   -- DSA with SHA-256
+
+   sa-dsaWithSHA256 SIGNATURE-ALGORITHM ::= {
+    IDENTIFIER dsa-with-sha256
+    VALUE DSA-Sig-Value
+    PARAMS TYPE NULL ARE absent
+    HASHES { mda-sha256 }
+    PUBLIC-KEYS { pk-dsa }
+    SMIME-CAPS { IDENTIFIED BY dsa-with-sha256 }
+   }
+
+   dsa-with-sha256 OBJECT IDENTIFIER  ::=  {
+    joint-iso-ccitt(2) country(16) us(840) organization(1) gov(101)
+    csor(3) algorithms(4) id-dsa-with-sha2(3) 2 }
+
+   -- ECDSA with SHA-1
+
+   sa-ecdsaWithSHA1 SIGNATURE-ALGORITHM ::= {
+    IDENTIFIER ecdsa-with-SHA1
+    VALUE ECDSA-Sig-Value
+    PARAMS TYPE NULL ARE absent
+    HASHES { mda-sha1 }
+    PUBLIC-KEYS { pk-ec }
+    SMIME-CAPS {IDENTIFIED BY ecdsa-with-SHA1 }
+   }
+
+   ecdsa-with-SHA1 OBJECT IDENTIFIER ::= {
+    iso(1) member-body(2) us(840) ansi-X9-62(10045)
+    signatures(4) 1 }
+
+   -- ECDSA with SHA-224
+
+   sa-ecdsaWithSHA224 SIGNATURE-ALGORITHM ::= {
+    IDENTIFIER ecdsa-with-SHA224
+    VALUE ECDSA-Sig-Value
+    PARAMS TYPE NULL ARE absent
+    HASHES { mda-sha224 }
+    PUBLIC-KEYS { pk-ec }
+    SMIME-CAPS { IDENTIFIED BY ecdsa-with-SHA224 }
+   }
+
+   ecdsa-with-SHA224 OBJECT IDENTIFIER ::= {
+    iso(1) member-body(2) us(840) ansi-X9-62(10045) signatures(4)
+    ecdsa-with-SHA2(3) 1 }
+
+   -- ECDSA with SHA-256
+
+   sa-ecdsaWithSHA256 SIGNATURE-ALGORITHM ::= {
+    IDENTIFIER ecdsa-with-SHA256
+    VALUE ECDSA-Sig-Value
+    PARAMS TYPE NULL ARE absent
+    HASHES { mda-sha256 }
+    PUBLIC-KEYS { pk-ec }
+    SMIME-CAPS { IDENTIFIED BY ecdsa-with-SHA256 }
+   }
+
+   ecdsa-with-SHA256 OBJECT IDENTIFIER ::= {
+    iso(1) member-body(2) us(840) ansi-X9-62(10045) signatures(4)
+    ecdsa-with-SHA2(3) 2 }
+
+   -- ECDSA with SHA-384
+
+   sa-ecdsaWithSHA384 SIGNATURE-ALGORITHM ::= {
+    IDENTIFIER ecdsa-with-SHA384
+    VALUE ECDSA-Sig-Value
+    PARAMS TYPE NULL ARE absent
+    HASHES { mda-sha384 }
+    PUBLIC-KEYS { pk-ec }
+    SMIME-CAPS { IDENTIFIED BY ecdsa-with-SHA384 }
+   }
+   ecdsa-with-SHA384 OBJECT IDENTIFIER ::= {
+    iso(1) member-body(2) us(840) ansi-X9-62(10045) signatures(4)
+    ecdsa-with-SHA2(3) 3 }
+
+   -- ECDSA with SHA-512
+
+   sa-ecdsaWithSHA512 SIGNATURE-ALGORITHM ::= {
+    IDENTIFIER ecdsa-with-SHA512
+    VALUE ECDSA-Sig-Value
+    PARAMS TYPE NULL ARE absent
+    HASHES { mda-sha512 }
+    PUBLIC-KEYS { pk-ec }
+    SMIME-CAPS { IDENTIFIED BY ecdsa-with-SHA512 }
+   }
+
+   ecdsa-with-SHA512 OBJECT IDENTIFIER ::= {
+    iso(1) member-body(2) us(840) ansi-X9-62(10045) signatures(4)
+    ecdsa-with-SHA2(3) 4 }
+
+   --
+   -- Signature Values
+   --
+
+   -- DSA
+
+   DSA-Sig-Value ::= SEQUENCE {
+    r  INTEGER,
+    s  INTEGER
+   }
+
+   -- ECDSA
+
+   ECDSA-Sig-Value ::= SEQUENCE {
+    r  INTEGER,
+    s  INTEGER
+   }
+
+   --
+   -- Message Digest Algorithms (mda-)
+   --
+
+   HashAlgs DIGEST-ALGORITHM ::= {
+    mda-md2    |
+    mda-md5    |
+    mda-sha1,
+    ... -- Extensible
+   }
+   -- MD-2
+
+   mda-md2 DIGEST-ALGORITHM ::= {
+    IDENTIFIER id-md2
+    PARAMS TYPE NULL ARE preferredAbsent
+   }
+
+   id-md2  OBJECT IDENTIFIER ::= {
+    iso(1) member-body(2) us(840) rsadsi(113549)
+    digestAlgorithm(2) 2 }
+
+   -- MD-5
+
+   mda-md5 DIGEST-ALGORITHM ::= {
+    IDENTIFIER id-md5
+    PARAMS TYPE NULL ARE preferredAbsent
+   }
+
+   id-md5  OBJECT IDENTIFIER ::= {
+    iso(1) member-body(2) us(840) rsadsi(113549)
+    digestAlgorithm(2) 5 }
+
+   -- SHA-1
+
+   mda-sha1 DIGEST-ALGORITHM ::= {
+    IDENTIFIER id-sha1
+    PARAMS TYPE NULL ARE preferredAbsent
+   }
+
+   id-sha1 OBJECT IDENTIFIER ::= {
+    iso(1) identified-organization(3) oiw(14) secsig(3)
+    algorithm(2) 26 }
+
+   END
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/PKIXAttributeCertificate-2009.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/PKIXAttributeCertificate-2009.asn1
new file mode 100644
index 0000000000..3ab074643f
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/PKIXAttributeCertificate-2009.asn1
@@ -0,0 +1,292 @@
+   PKIXAttributeCertificate-2009
+       {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+       mechanisms(5) pkix(7) id-mod(0) id-mod-attribute-cert-02(47)}
+   DEFINITIONS IMPLICIT TAGS ::=
+   BEGIN
+   IMPORTS
+
+   AttributeSet{}, Extensions{}, SecurityCategory{},
+           EXTENSION, ATTRIBUTE, SECURITY-CATEGORY
+   FROM PKIX-CommonTypes-2009
+       {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+       mechanisms(5) pkix(7) id-mod(0) id-mod-pkixCommon-02(57) }
+
+   AlgorithmIdentifier{}, SIGNATURE-ALGORITHM, DIGEST-ALGORITHM
+   FROM AlgorithmInformation-2009
+       {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+       mechanisms(5) pkix(7) id-mod(0)
+       id-mod-algorithmInformation-02(58)}
+
+      -- IMPORTed module OIDs MAY change if [PKIXPROF] changes
+      -- PKIX Certificate Extensions
+
+   CertificateSerialNumber, UniqueIdentifier, id-pkix, id-pe, id-kp,
+       id-ad, id-at, SIGNED{}, SignatureAlgorithms
+   FROM PKIX1Explicit-2009
+       {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+       mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-explicit-02(51)}
+
+   GeneralName, GeneralNames, id-ce, ext-AuthorityKeyIdentifier,
+       ext-AuthorityInfoAccess, ext-CRLDistributionPoints
+   FROM PKIX1Implicit-2009
+       {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+       mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-implicit-02(59)}
+
+   ContentInfo
+     FROM CryptographicMessageSyntax-2009
+       { iso(1) member-body(2) us(840) rsadsi(113549)
+       pkcs(1) pkcs-9(9) smime(16) modules(0) id-mod-cms-2004-02(41) };
+   --  Define the set of extensions that can appear.
+   --  Some of these are imported from PKIX Cert
+
+   AttributeCertExtensions EXTENSION ::= {
+       ext-auditIdentity | ext-targetInformation |
+       ext-AuthorityKeyIdentifier | ext-AuthorityInfoAccess |
+       ext-CRLDistributionPoints | ext-noRevAvail | ext-ac-proxying |
+       ext-aaControls, ... }
+
+   ext-auditIdentity EXTENSION ::= { SYNTAX
+       OCTET STRING IDENTIFIED BY id-pe-ac-auditIdentity}
+
+   ext-targetInformation EXTENSION ::= { SYNTAX
+       Targets IDENTIFIED BY id-ce-targetInformation }
+
+   ext-noRevAvail EXTENSION ::= { SYNTAX
+       NULL IDENTIFIED BY id-ce-noRevAvail}
+
+   ext-ac-proxying EXTENSION ::= { SYNTAX
+       ProxyInfo IDENTIFIED BY id-pe-ac-proxying}
+
+   ext-aaControls EXTENSION ::= { SYNTAX
+       AAControls IDENTIFIED BY id-pe-aaControls}
+
+   -- Define the set of attributes used here
+
+   AttributesDefined ATTRIBUTE ::= {  at-authenticationInfo |
+        at-accesIdentity | at-chargingIdentity | at-group |
+        at-role | at-clearance | at-encAttrs, ...}
+
+   at-authenticationInfo ATTRIBUTE ::= { TYPE SvceAuthInfo
+       IDENTIFIED BY id-aca-authenticationInfo}
+
+   at-accesIdentity ATTRIBUTE ::= { TYPE SvceAuthInfo
+       IDENTIFIED BY id-aca-accessIdentity}
+
+   at-chargingIdentity ATTRIBUTE ::= { TYPE IetfAttrSyntax
+       IDENTIFIED BY id-aca-chargingIdentity}
+
+   at-group ATTRIBUTE ::= { TYPE IetfAttrSyntax
+       IDENTIFIED BY id-aca-group}
+
+   at-role ATTRIBUTE ::= { TYPE RoleSyntax
+       IDENTIFIED BY id-at-role}
+
+   at-clearance ATTRIBUTE ::= { TYPE Clearance
+       IDENTIFIED BY id-at-clearance}
+   at-clearance-RFC3281 ATTRIBUTE ::= {TYPE Clearance-rfc3281
+       IDENTIFIED BY id-at-clearance-rfc3281 }
+
+   at-encAttrs ATTRIBUTE ::= { TYPE ContentInfo
+       IDENTIFIED BY id-aca-encAttrs}
+
+   --
+   --  OIDs used by Attribute Certificate Extensions
+   --
+
+   id-pe-ac-auditIdentity       OBJECT IDENTIFIER ::= { id-pe 4 }
+   id-pe-aaControls             OBJECT IDENTIFIER ::= { id-pe 6 }
+   id-pe-ac-proxying            OBJECT IDENTIFIER ::= { id-pe 10 }
+   id-ce-targetInformation      OBJECT IDENTIFIER ::= { id-ce 55 }
+   id-ce-noRevAvail             OBJECT IDENTIFIER ::= { id-ce 56 }
+
+   --
+   --  OIDs used by Attribute Certificate Attributes
+   --
+
+   id-aca                       OBJECT IDENTIFIER ::= { id-pkix 10 }
+
+   id-aca-authenticationInfo    OBJECT IDENTIFIER ::= { id-aca 1 }
+   id-aca-accessIdentity        OBJECT IDENTIFIER ::= { id-aca 2 }
+   id-aca-chargingIdentity      OBJECT IDENTIFIER ::= { id-aca 3 }
+   id-aca-group                 OBJECT IDENTIFIER ::= { id-aca 4 }
+   -- { id-aca 5 } is reserved
+   id-aca-encAttrs              OBJECT IDENTIFIER ::= { id-aca 6 }
+
+   id-at-role                   OBJECT IDENTIFIER ::= { id-at 72}
+   id-at-clearance              OBJECT IDENTIFIER ::= {
+        joint-iso-ccitt(2) ds(5) attributeType(4) clearance (55) }
+
+   -- Uncomment the following declaration and comment the above line if
+   -- using the id-at-clearance attribute as defined in [RFC3281]
+   -- id-at-clearance ::= id-at-clearance-3281
+
+   id-at-clearance-rfc3281              OBJECT IDENTIFIER ::= {
+       joint-iso-ccitt(2) ds(5) module(1) selected-attribute-types(5)
+       clearance (55) }
+
+   --
+   --  The syntax of an Attribute Certificate
+   --
+
+   AttributeCertificate ::= SIGNED{AttributeCertificateInfo}
+
+   AttributeCertificateInfo ::= SEQUENCE {
+       version        AttCertVersion,  -- version is v2
+       holder         Holder,
+       issuer         AttCertIssuer,
+       signature      AlgorithmIdentifier{SIGNATURE-ALGORITHM,
+                          {SignatureAlgorithms}},
+       serialNumber   CertificateSerialNumber,
+       attrCertValidityPeriod   AttCertValidityPeriod,
+       attributes     SEQUENCE OF
+                          AttributeSet{{AttributesDefined}},
+       issuerUniqueID UniqueIdentifier OPTIONAL,
+       extensions     Extensions{{AttributeCertExtensions}} OPTIONAL
+   }
+
+   AttCertVersion ::= INTEGER { v2(1) }
+
+   Holder ::= SEQUENCE {
+       baseCertificateID   [0] IssuerSerial OPTIONAL,
+                 -- the issuer and serial number of
+                 -- the holder's Public Key Certificate
+       entityName          [1] GeneralNames OPTIONAL,
+                 -- the name of the claimant or role
+       objectDigestInfo    [2] ObjectDigestInfo OPTIONAL
+                 -- used to directly authenticate the
+                 -- holder, for example, an executable
+   }
+
+   ObjectDigestInfo    ::= SEQUENCE {
+       digestedObjectType  ENUMERATED {
+            publicKey            (0),
+            publicKeyCert        (1),
+            otherObjectTypes     (2) },
+               -- otherObjectTypes MUST NOT
+               -- be used in this profile
+       otherObjectTypeID   OBJECT IDENTIFIER  OPTIONAL,
+       digestAlgorithm     AlgorithmIdentifier{DIGEST-ALGORITHM, {...}},
+       objectDigest        BIT STRING
+   }
+
+   AttCertIssuer ::= CHOICE {
+       v1Form   GeneralNames,  -- MUST NOT be used in this
+                               -- profile
+       v2Form   [0] V2Form     -- v2 only
+   }
+
+   V2Form ::= SEQUENCE {
+       issuerName            GeneralNames  OPTIONAL,
+       baseCertificateID     [0] IssuerSerial  OPTIONAL,
+       objectDigestInfo      [1] ObjectDigestInfo  OPTIONAL
+          -- issuerName MUST be present in this profile
+          -- baseCertificateID and objectDigestInfo MUST
+          -- NOT be present in this profile
+   }
+
+   IssuerSerial  ::=  SEQUENCE {
+       issuer         GeneralNames,
+       serial         CertificateSerialNumber,
+       issuerUID      UniqueIdentifier OPTIONAL
+   }
+
+   AttCertValidityPeriod  ::= SEQUENCE {
+       notBeforeTime  GeneralizedTime,
+       notAfterTime   GeneralizedTime
+   }
+
+   --
+   -- Syntax used by Attribute Certificate Extensions
+   --
+
+   Targets ::= SEQUENCE OF Target
+
+   Target  ::= CHOICE {
+       targetName     [0] GeneralName,
+       targetGroup    [1] GeneralName,
+       targetCert     [2] TargetCert
+   }
+
+   TargetCert  ::= SEQUENCE {
+       targetCertificate  IssuerSerial,
+       targetName         GeneralName OPTIONAL,
+       certDigestInfo     ObjectDigestInfo OPTIONAL
+   }
+
+   AAControls ::= SEQUENCE {
+       pathLenConstraint INTEGER (0..MAX) OPTIONAL,
+       permittedAttrs    [0] AttrSpec OPTIONAL,
+       excludedAttrs     [1] AttrSpec OPTIONAL,
+       permitUnSpecified BOOLEAN DEFAULT TRUE
+   }
+
+   AttrSpec::= SEQUENCE OF OBJECT IDENTIFIER
+
+   ProxyInfo ::= SEQUENCE OF Targets
+
+   --
+   --  Syntax used by Attribute Certificate Attributes
+   --
+   IetfAttrSyntax ::= SEQUENCE {
+      policyAuthority[0] GeneralNames    OPTIONAL,
+      values         SEQUENCE OF CHOICE {
+                     octets    OCTET STRING,
+                     oid       OBJECT IDENTIFIER,
+                     string    UTF8String
+     }
+   }
+
+   SvceAuthInfo ::=    SEQUENCE {
+       service       GeneralName,
+       ident         GeneralName,
+       authInfo      OCTET STRING OPTIONAL
+   }
+
+   RoleSyntax ::= SEQUENCE {
+       roleAuthority  [0] GeneralNames OPTIONAL,
+       roleName       [1] GeneralName
+   }
+
+   Clearance ::= SEQUENCE {
+       policyId            OBJECT IDENTIFIER,
+       classList           ClassList DEFAULT {unclassified},
+       securityCategories  SET OF SecurityCategory
+                                {{SupportedSecurityCategories}} OPTIONAL
+   }
+
+   -- Uncomment the following lines to support deprecated clearance
+   -- syntax and comment out previous Clearance.
+
+   -- Clearance ::= Clearance-rfc3281
+
+   Clearance-rfc3281  ::=  SEQUENCE {
+       policyId       [0] OBJECT IDENTIFIER,
+       classList      [1] ClassList DEFAULT {unclassified},
+       securityCategories [2] SET OF SecurityCategory-rfc3281
+                              {{SupportedSecurityCategories}} OPTIONAL
+   }
+
+   ClassList  ::=  BIT STRING {
+       unmarked       (0),
+       unclassified   (1),
+       restricted     (2),
+       confidential   (3),
+       secret         (4),
+       topSecret      (5)
+   }
+   SupportedSecurityCategories SECURITY-CATEGORY ::= { ... }
+
+   SecurityCategory-rfc3281{SECURITY-CATEGORY:Supported} ::= SEQUENCE {
+       type      [0]  IMPLICIT SECURITY-CATEGORY.
+               &id({Supported}),
+       value     [1]  EXPLICIT SECURITY-CATEGORY.
+               &Type({Supported}{@type})
+   }
+
+   ACClearAttrs ::= SEQUENCE {
+       acIssuer          GeneralName,
+       acSerial          INTEGER,
+       attrs             SEQUENCE OF AttributeSet{{AttributesDefined}}
+   }
+
+   END
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/PKIXCMP-2009.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/PKIXCMP-2009.asn1
new file mode 100644
index 0000000000..968a142f28
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/PKIXCMP-2009.asn1
@@ -0,0 +1,495 @@
+ PKIXCMP-2009
+     { iso(1) identified-organization(3) dod(6) internet(1) security(5)
+     mechanisms(5) pkix(7) id-mod(0) id-mod-cmp2000-02(50) }
+ DEFINITIONS EXPLICIT TAGS ::=
+ BEGIN
+ IMPORTS
+
+ AttributeSet{}, Extensions{}, EXTENSION, ATTRIBUTE
+ FROM PKIX-CommonTypes-2009
+     {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+     mechanisms(5) pkix(7) id-mod(0) id-mod-pkixCommon-02(57)}
+
+ AlgorithmIdentifier{}, SIGNATURE-ALGORITHM, ALGORITHM,
+     DIGEST-ALGORITHM, MAC-ALGORITHM
+ FROM AlgorithmInformation-2009
+     {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+     mechanisms(5) pkix(7) id-mod(0)
+     id-mod-algorithmInformation-02(58)}
+
+ Certificate, CertificateList
+ FROM PKIX1Explicit-2009
+     {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+     mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-explicit-02(51)}
+
+ GeneralName, KeyIdentifier
+ FROM PKIX1Implicit-2009
+     {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+     mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-implicit-02(59)}
+
+ CertTemplate, PKIPublicationInfo, EncryptedValue, CertId,
+     CertReqMessages
+ FROM PKIXCRMF-2009
+     { iso(1) identified-organization(3) dod(6) internet(1) security(5)
+     mechanisms(5) pkix(7) id-mod(0) id-mod-crmf2005-02(55) }
+ -- see also the behavioral clarifications to CRMF codified in
+ -- Appendix C of this specification
+
+ CertificationRequest
+ FROM PKCS-10
+       {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+       mechanisms(5) pkix(7) id-mod(0) id-mod-pkcs10-2009(69)}
+ -- (specified in RFC 2986 with 1993 ASN.1 syntax and IMPLICIT
+ -- tags).  Alternatively, implementers may directly include
+ -- the [PKCS10] syntax in this module
+ ;
+
+ -- the rest of the module contains locally defined OIDs and
+ -- constructs
+
+ CMPCertificate ::= CHOICE { x509v3PKCert Certificate, ... }
+ -- This syntax, while bits-on-the-wire compatible with the
+ -- standard X.509 definition of "Certificate", allows the
+ -- possibility of future certificate types (such as X.509
+ -- attribute certificates, WAP WTLS certificates, or other kinds
+ -- of certificates) within this certificate management protocol,
+ -- should a need ever arise to support such generality.  Those
+ -- implementations that do not foresee a need to ever support
+ -- other certificate types MAY, if they wish, comment out the
+ -- above structure and "uncomment" the following one prior to
+ -- compiling this ASN.1 module.  (Note that interoperability
+ -- with implementations that don't do this will be unaffected by
+ -- this change.)
+
+ -- CMPCertificate ::= Certificate
+
+ PKIMessage ::= SEQUENCE {
+     header           PKIHeader,
+     body             PKIBody,
+     protection   [0] PKIProtection OPTIONAL,
+     extraCerts   [1] SEQUENCE SIZE (1..MAX) OF CMPCertificate
+                   OPTIONAL }
+
+ PKIMessages ::= SEQUENCE SIZE (1..MAX) OF PKIMessage
+
+ PKIHeader ::= SEQUENCE {
+     pvno                INTEGER     { cmp1999(1), cmp2000(2) },
+     sender              GeneralName,
+     -- identifies the sender
+     recipient           GeneralName,
+     -- identifies the intended recipient
+     messageTime     [0] GeneralizedTime         OPTIONAL,
+     -- time of production of this message (used when sender
+     -- believes that the transport will be "suitable"; i.e.,
+     -- that the time will still be meaningful upon receipt)
+     protectionAlg   [1] AlgorithmIdentifier{ALGORITHM, {...}}
+                             OPTIONAL,
+     -- algorithm used for calculation of protection bits
+     senderKID       [2] KeyIdentifier           OPTIONAL,
+     recipKID        [3] KeyIdentifier           OPTIONAL,
+     -- to identify specific keys used for protection
+     transactionID   [4] OCTET STRING            OPTIONAL,
+     -- identifies the transaction; i.e., this will be the same in
+     -- corresponding request, response, certConf, and PKIConf
+     -- messages
+     senderNonce     [5] OCTET STRING            OPTIONAL,
+     recipNonce      [6] OCTET STRING            OPTIONAL,
+     -- nonces used to provide replay protection, senderNonce
+     -- is inserted by the creator of this message; recipNonce
+     -- is a nonce previously inserted in a related message by
+     -- the intended recipient of this message
+     freeText        [7] PKIFreeText             OPTIONAL,
+     -- this may be used to indicate context-specific instructions
+     -- (this field is intended for human consumption)
+     generalInfo     [8] SEQUENCE SIZE (1..MAX) OF
+                         InfoTypeAndValue     OPTIONAL
+     -- this may be used to convey context-specific information
+     -- (this field not primarily intended for human consumption)
+ }
+
+ PKIFreeText ::= SEQUENCE SIZE (1..MAX) OF UTF8String
+     -- text encoded as UTF-8 String [RFC3629] (note: each
+     -- UTF8String MAY include an [RFC3066] language tag
+     -- to indicate the language of the contained text;
+     -- see [RFC2482] for details)
+
+ PKIBody ::= CHOICE {       -- message-specific body elements
+     ir       [0]  CertReqMessages,        --Initialization Request
+     ip       [1]  CertRepMessage,         --Initialization Response
+     cr       [2]  CertReqMessages,        --Certification Request
+     cp       [3]  CertRepMessage,         --Certification Response
+     p10cr    [4]  CertificationRequest,   --imported from [PKCS10]
+     popdecc  [5]  POPODecKeyChallContent, --pop Challenge
+     popdecr  [6]  POPODecKeyRespContent,  --pop Response
+     kur      [7]  CertReqMessages,        --Key Update Request
+     kup      [8]  CertRepMessage,         --Key Update Response
+     krr      [9]  CertReqMessages,        --Key Recovery Request
+     krp      [10] KeyRecRepContent,       --Key Recovery Response
+     rr       [11] RevReqContent,          --Revocation Request
+     rp       [12] RevRepContent,          --Revocation Response
+     ccr      [13] CertReqMessages,        --Cross-Cert. Request
+     ccp      [14] CertRepMessage,         --Cross-Cert. Response
+     ckuann   [15] CAKeyUpdAnnContent,     --CA Key Update Ann.
+     cann     [16] CertAnnContent,         --Certificate Ann.
+     rann     [17] RevAnnContent,          --Revocation Ann.
+     crlann   [18] CRLAnnContent,          --CRL Announcement
+     pkiconf  [19] PKIConfirmContent,      --Confirmation
+     nested   [20] NestedMessageContent,   --Nested Message
+     genm     [21] GenMsgContent,          --General Message
+     genp     [22] GenRepContent,          --General Response
+     error    [23] ErrorMsgContent,        --Error Message
+     certConf [24] CertConfirmContent,     --Certificate confirm
+     pollReq  [25] PollReqContent,         --Polling request
+     pollRep  [26] PollRepContent          --Polling response
+ }
+
+ PKIProtection ::= BIT STRING
+
+ ProtectedPart ::= SEQUENCE {
+     header    PKIHeader,
+     body      PKIBody }
+
+ id-PasswordBasedMac OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+     usa(840) nt(113533) nsn(7) algorithms(66) 13 }
+ PBMParameter ::= SEQUENCE {
+     salt                OCTET STRING,
+     -- note:  implementations MAY wish to limit acceptable sizes
+     -- of this string to values appropriate for their environment
+     -- in order to reduce the risk of denial-of-service attacks
+     owf                 AlgorithmIdentifier{DIGEST-ALGORITHM, {...}},
+     -- AlgId for a One-Way Function (SHA-1 recommended)
+     iterationCount      INTEGER,
+     -- number of times the OWF is applied
+     -- note:  implementations MAY wish to limit acceptable sizes
+     -- of this integer to values appropriate for their environment
+     -- in order to reduce the risk of denial-of-service attacks
+     mac                 AlgorithmIdentifier{MAC-ALGORITHM, {...}}
+     -- the MAC AlgId (e.g., DES-MAC, Triple-DES-MAC [PKCS11],
+     -- or HMAC [RFC2104, RFC2202])
+ }
+
+ id-DHBasedMac OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+     usa(840) nt(113533) nsn(7) algorithms(66) 30 }
+ DHBMParameter ::= SEQUENCE {
+     owf                 AlgorithmIdentifier{DIGEST-ALGORITHM, {...}},
+     -- AlgId for a One-Way Function (SHA-1 recommended)
+     mac                 AlgorithmIdentifier{MAC-ALGORITHM, {...}}
+     -- the MAC AlgId (e.g., DES-MAC, Triple-DES-MAC [PKCS11],
+     -- or HMAC [RFC2104, RFC2202])
+ }
+
+ PKIStatus ::= INTEGER {
+     accepted               (0),
+     -- you got exactly what you asked for
+     grantedWithMods        (1),
+     -- you got something like what you asked for; the
+     -- requester is responsible for ascertaining the differences
+     rejection              (2),
+     -- you don't get it, more information elsewhere in the message
+     waiting                (3),
+     -- the request body part has not yet been processed; expect to
+     -- hear more later (note: proper handling of this status
+     -- response MAY use the polling req/rep PKIMessages specified
+     -- in Section 5.3.22; alternatively, polling in the underlying
+     -- transport layer MAY have some utility in this regard)
+     revocationWarning      (4),
+     -- this message contains a warning that a revocation is
+     -- imminent
+     revocationNotification (5),
+     -- notification that a revocation has occurred
+     keyUpdateWarning       (6)
+     -- update already done for the oldCertId specified in
+     -- CertReqMsg
+ }
+
+ PKIFailureInfo ::= BIT STRING {
+ -- since we can fail in more than one way!
+ -- More codes may be added in the future if/when required.
+     badAlg              (0),
+     -- unrecognized or unsupported Algorithm Identifier
+     badMessageCheck     (1),
+     -- integrity check failed (e.g., signature did not verify)
+     badRequest          (2),
+     -- transaction not permitted or supported
+     badTime             (3),
+     -- messageTime was not sufficiently close to the system time,
+     -- as defined by local policy
+     badCertId           (4),
+     -- no certificate could be found matching the provided criteria
+     badDataFormat       (5),
+     -- the data submitted has the wrong format
+     wrongAuthority      (6),
+     -- the authority indicated in the request is different from the
+     -- one creating the response token
+     incorrectData       (7),
+     -- the requester's data is incorrect (for notary services)
+     missingTimeStamp    (8),
+     -- when the timestamp is missing but should be there
+     -- (by policy)
+     badPOP              (9),
+     -- the proof-of-possession failed
+     certRevoked         (10),
+     -- the certificate has already been revoked
+     certConfirmed       (11),
+     -- the certificate has already been confirmed
+     wrongIntegrity      (12),
+     -- invalid integrity, password based instead of signature or
+     -- vice versa
+     badRecipientNonce   (13),
+     -- invalid recipient nonce, either missing or wrong value
+     timeNotAvailable    (14),
+     -- the TSA's time source is not available
+     unacceptedPolicy    (15),
+     -- the requested TSA policy is not supported by the TSA
+     unacceptedExtension (16),
+     -- the requested extension is not supported by the TSA
+     addInfoNotAvailable (17),
+     -- the additional information requested could not be
+     -- understood or is not available
+     badSenderNonce      (18),
+     -- invalid sender nonce, either missing or wrong size
+     badCertTemplate     (19),
+     -- invalid cert. template or missing mandatory information
+     signerNotTrusted    (20),
+     -- signer of the message unknown or not trusted
+     transactionIdInUse  (21),
+     -- the transaction identifier is already in use
+     unsupportedVersion  (22),
+     -- the version of the message is not supported
+     notAuthorized       (23),
+     -- the sender was not authorized to make the preceding
+     -- request or perform the preceding action
+     systemUnavail       (24),
+     -- the request cannot be handled due to system unavailability
+     systemFailure       (25),
+     -- the request cannot be handled due to system failure
+     duplicateCertReq    (26)
+     -- certificate cannot be issued because a duplicate
+     -- certificate already exists
+ }
+
+ PKIStatusInfo ::= SEQUENCE {
+     status        PKIStatus,
+     statusString  PKIFreeText     OPTIONAL,
+     failInfo      PKIFailureInfo  OPTIONAL }
+
+ OOBCert ::= CMPCertificate
+
+ OOBCertHash ::= SEQUENCE {
+     hashAlg     [0] AlgorithmIdentifier{DIGEST-ALGORITHM, {...}}
+                         OPTIONAL,
+     certId      [1] CertId                  OPTIONAL,
+     hashVal         BIT STRING
+     -- hashVal is calculated over the DER encoding of the
+     -- self-signed certificate with the identifier certID.
+ }
+
+ POPODecKeyChallContent ::= SEQUENCE OF Challenge
+ -- One Challenge per encryption key certification request (in the
+ -- same order as these requests appear in CertReqMessages).
+
+ Challenge ::= SEQUENCE {
+     owf                 AlgorithmIdentifier{DIGEST-ALGORITHM, {...}}
+                             OPTIONAL,
+     -- MUST be present in the first Challenge; MAY be omitted in
+     -- any subsequent Challenge in POPODecKeyChallContent (if
+     -- omitted, then the owf used in the immediately preceding
+     -- Challenge is to be used).
+     witness             OCTET STRING,
+     -- the result of applying the one-way function (owf) to a
+     -- randomly-generated INTEGER, A.  [Note that a different
+     -- INTEGER MUST be used for each Challenge.]
+     challenge           OCTET STRING
+     -- the encryption (under the public key for which the cert.
+     -- request is being made) of Rand, where Rand is specified as
+     --   Rand ::= SEQUENCE {
+     --      int      INTEGER,
+     --       - the randomly-generated INTEGER A (above)
+     --      sender   GeneralName
+     --       - the sender's name (as included in PKIHeader)
+     --   }
+ }
+
+ POPODecKeyRespContent ::= SEQUENCE OF INTEGER
+ -- One INTEGER per encryption key certification request (in the
+ -- same order as these requests appear in CertReqMessages).  The
+ -- retrieved INTEGER A (above) is returned to the sender of the
+ -- corresponding Challenge.
+
+ CertRepMessage ::= SEQUENCE {
+     caPubs       [1] SEQUENCE SIZE (1..MAX) OF CMPCertificate
+                   OPTIONAL,
+     response         SEQUENCE OF CertResponse }
+
+ CertResponse ::= SEQUENCE {
+     certReqId           INTEGER,
+     -- to match this response with the corresponding request (a value
+     -- of -1 is to be used if certReqId is not specified in the
+     -- corresponding request)
+     status              PKIStatusInfo,
+     certifiedKeyPair    CertifiedKeyPair    OPTIONAL,
+     rspInfo             OCTET STRING        OPTIONAL
+     -- analogous to the id-regInfo-utf8Pairs string defined
+     -- for regInfo in CertReqMsg [RFC4211]
+ }
+
+ CertifiedKeyPair ::= SEQUENCE {
+     certOrEncCert       CertOrEncCert,
+     privateKey      [0] EncryptedValue      OPTIONAL,
+     -- see [RFC4211] for comment on encoding
+     publicationInfo [1] PKIPublicationInfo  OPTIONAL }
+
+ CertOrEncCert ::= CHOICE {
+     certificate     [0] CMPCertificate,
+     encryptedCert   [1] EncryptedValue }
+ KeyRecRepContent ::= SEQUENCE {
+     status                  PKIStatusInfo,
+     newSigCert          [0] CMPCertificate OPTIONAL,
+     caCerts             [1] SEQUENCE SIZE (1..MAX) OF
+                                      CMPCertificate OPTIONAL,
+     keyPairHist         [2] SEQUENCE SIZE (1..MAX) OF
+                                      CertifiedKeyPair OPTIONAL }
+
+ RevReqContent ::= SEQUENCE OF RevDetails
+
+ RevDetails ::= SEQUENCE {
+     certDetails         CertTemplate,
+     -- allows requester to specify as much as they can about
+     -- the cert. for which revocation is requested
+     -- (e.g., for cases in which serialNumber is not available)
+     crlEntryDetails     Extensions{{...}}    OPTIONAL
+     -- requested crlEntryExtensions
+ }
+
+ RevRepContent ::= SEQUENCE {
+     status       SEQUENCE SIZE (1..MAX) OF PKIStatusInfo,
+     -- in same order as was sent in RevReqContent
+     revCerts [0] SEQUENCE SIZE (1..MAX) OF CertId OPTIONAL,
+     -- IDs for which revocation was requested
+     -- (same order as status)
+     crls     [1] SEQUENCE SIZE (1..MAX) OF CertificateList OPTIONAL
+     -- the resulting CRLs (there may be more than one)
+ }
+
+ CAKeyUpdAnnContent ::= SEQUENCE {
+     oldWithNew   CMPCertificate, -- old pub signed with new priv
+     newWithOld   CMPCertificate, -- new pub signed with old priv
+     newWithNew   CMPCertificate  -- new pub signed with new priv
+ }
+
+ CertAnnContent ::= CMPCertificate
+
+ RevAnnContent ::= SEQUENCE {
+     status              PKIStatus,
+     certId              CertId,
+     willBeRevokedAt     GeneralizedTime,
+     badSinceDate        GeneralizedTime,
+     crlDetails          Extensions{{...}}  OPTIONAL
+     -- extra CRL details (e.g., crl number, reason, location, etc.)
+ }
+
+ CRLAnnContent ::= SEQUENCE OF CertificateList
+ PKIConfirmContent ::= NULL
+
+ NestedMessageContent ::= PKIMessages
+
+ INFO-TYPE-AND-VALUE ::= TYPE-IDENTIFIER
+
+ InfoTypeAndValue ::= SEQUENCE {
+     infoType    INFO-TYPE-AND-VALUE.
+                     &id({SupportedInfoSet}),
+     infoValue   INFO-TYPE-AND-VALUE.
+                     &Type({SupportedInfoSet}{@infoType}) }
+
+ SupportedInfoSet INFO-TYPE-AND-VALUE ::= { ... }
+
+ -- Example InfoTypeAndValue contents include, but are not limited
+ -- to, the following (uncomment in this ASN.1 module and use as
+ -- appropriate for a given environment):
+ --
+ --   id-it-caProtEncCert    OBJECT IDENTIFIER ::= {id-it 1}
+ --      CAProtEncCertValue      ::= CMPCertificate
+ --   id-it-signKeyPairTypes OBJECT IDENTIFIER ::= {id-it 2}
+ --      SignKeyPairTypesValue   ::= SEQUENCE OF
+ --                                      AlgorithmIdentifier{{...}}
+ --   id-it-encKeyPairTypes  OBJECT IDENTIFIER ::= {id-it 3}
+ --      EncKeyPairTypesValue    ::= SEQUENCE OF
+ --                                      AlgorithmIdentifier{{...}}
+ --   id-it-preferredSymmAlg OBJECT IDENTIFIER ::= {id-it 4}
+ --      PreferredSymmAlgValue   ::= AlgorithmIdentifier{{...}}
+ --   id-it-caKeyUpdateInfo  OBJECT IDENTIFIER ::= {id-it 5}
+ --      CAKeyUpdateInfoValue    ::= CAKeyUpdAnnContent
+ --   id-it-currentCRL       OBJECT IDENTIFIER ::= {id-it 6}
+ --      CurrentCRLValue         ::= CertificateList
+ --   id-it-unsupportedOIDs  OBJECT IDENTIFIER ::= {id-it 7}
+ --      UnsupportedOIDsValue    ::= SEQUENCE OF OBJECT IDENTIFIER
+ --   id-it-keyPairParamReq  OBJECT IDENTIFIER ::= {id-it 10}
+ --      KeyPairParamReqValue    ::= OBJECT IDENTIFIER
+ --   id-it-keyPairParamRep  OBJECT IDENTIFIER ::= {id-it 11}
+ --      KeyPairParamRepValue    ::= AlgorithmIdentifer
+ --   id-it-revPassphrase    OBJECT IDENTIFIER ::= {id-it 12}
+ --      RevPassphraseValue      ::= EncryptedValue
+ --   id-it-implicitConfirm  OBJECT IDENTIFIER ::= {id-it 13}
+ --      ImplicitConfirmValue    ::= NULL
+ --   id-it-confirmWaitTime  OBJECT IDENTIFIER ::= {id-it 14}
+ --      ConfirmWaitTimeValue    ::= GeneralizedTime
+ --   id-it-origPKIMessage   OBJECT IDENTIFIER ::= {id-it 15}
+ --      OrigPKIMessageValue     ::= PKIMessages
+ --   id-it-suppLangTags     OBJECT IDENTIFIER ::= {id-it 16}
+ --      SuppLangTagsValue       ::= SEQUENCE OF UTF8String
+ --
+ -- where
+ --
+ --   id-pkix OBJECT IDENTIFIER ::= {
+ --      iso(1) identified-organization(3)
+ --      dod(6) internet(1) security(5) mechanisms(5) pkix(7)}
+ -- and
+ --   id-it   OBJECT IDENTIFIER ::= {id-pkix 4}
+ --
+ --
+ -- This construct MAY also be used to define new PKIX Certificate
+ -- Management Protocol request and response messages, or general-
+ -- purpose (e.g., announcement) messages for future needs or for
+ -- specific environments.
+
+ GenMsgContent ::= SEQUENCE OF InfoTypeAndValue
+
+ -- May be sent by EE, RA, or CA (depending on message content).
+ -- The OPTIONAL infoValue parameter of InfoTypeAndValue will
+ -- typically be omitted for some of the examples given above.
+ -- The receiver is free to ignore any contained OBJECT IDs that it
+ -- does not recognize.  If sent from EE to CA, the empty set
+ -- indicates that the CA may send
+ -- any/all information that it wishes.
+
+ GenRepContent ::= SEQUENCE OF InfoTypeAndValue
+ -- Receiver MAY ignore any contained OIDs that it does not
+ -- recognize.
+
+ ErrorMsgContent ::= SEQUENCE {
+     pKIStatusInfo          PKIStatusInfo,
+     errorCode              INTEGER           OPTIONAL,
+     -- implementation-specific error codes
+     errorDetails           PKIFreeText       OPTIONAL
+     -- implementation-specific error details
+ }
+
+ CertConfirmContent ::= SEQUENCE OF CertStatus
+
+ CertStatus ::= SEQUENCE {
+     certHash    OCTET STRING,
+     -- the hash of the certificate, using the same hash algorithm
+     -- as is used to create and verify the certificate signature
+     certReqId   INTEGER,
+     -- to match this confirmation with the corresponding req/rep
+     statusInfo  PKIStatusInfo OPTIONAL }
+
+ PollReqContent ::= SEQUENCE OF SEQUENCE {
+     certReqId              INTEGER }
+
+ PollRepContent ::= SEQUENCE OF SEQUENCE {
+     certReqId              INTEGER,
+     checkAfter             INTEGER,  -- time in seconds
+     reason                 PKIFreeText OPTIONAL }
+
+ END
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/PKIXCRMF-2009.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/PKIXCRMF-2009.asn1
new file mode 100644
index 0000000000..1c0b780499
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/PKIXCRMF-2009.asn1
@@ -0,0 +1,409 @@
+  PKIXCRMF-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-crmf2005-02(55)}
+  DEFINITIONS IMPLICIT TAGS ::=
+  BEGIN
+  IMPORTS
+
+  AttributeSet{}, Extensions{}, EXTENSION, ATTRIBUTE,
+      SingleAttribute{}
+  FROM PKIX-CommonTypes-2009
+      {iso(1) identified-organization(3) dod(6) internet(1)
+      security(5) mechanisms(5) pkix(7) id-mod(0)
+      id-mod-pkixCommon-02(57) }
+
+  AlgorithmIdentifier{}, SIGNATURE-ALGORITHM, ALGORITHM,
+      DIGEST-ALGORITHM, MAC-ALGORITHM, PUBLIC-KEY
+  FROM AlgorithmInformation-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0)
+      id-mod-algorithmInformation-02(58)}
+
+  Version, Name, Time, SubjectPublicKeyInfo, UniqueIdentifier, id-pkix,
+      SignatureAlgorithms
+  FROM PKIX1Explicit-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-explicit-02(51)}
+
+  GeneralName, CertExtensions
+  FROM PKIX1Implicit-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-implicit-02(59)}
+
+  EnvelopedData, CONTENT-TYPE
+  FROM CryptographicMessageSyntax-2009
+      { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9)
+      smime(16) modules(0) id-mod-cms-2004-02(41)}
+  maca-hMAC-SHA1
+  FROM CryptographicMessageSyntaxAlgorithms-2009
+      { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9)
+      smime(16) modules(0) id-mod-cmsalg-2001-02(37) }
+
+  mda-sha1
+  FROM PKIXAlgs-2009
+      { iso(1) identified-organization(3) dod(6)
+      internet(1) security(5) mechanisms(5) pkix(7) id-mod(0)
+      id-mod-pkix1-algorithms2008-02(56) } ;
+
+  -- arc for Internet X.509 PKI protocols and their components
+
+  id-pkip  OBJECT IDENTIFIER ::= { id-pkix 5 }
+
+  id-smime OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+       us(840) rsadsi(113549) pkcs(1) pkcs9(9) 16 }
+
+  id-ct   OBJECT IDENTIFIER ::= { id-smime  1 }  -- content types
+
+  -- Core definitions for this module
+
+  CertReqMessages ::= SEQUENCE SIZE (1..MAX) OF CertReqMsg
+
+  CertReqMsg ::= SEQUENCE {
+      certReq   CertRequest,
+      popo       ProofOfPossession  OPTIONAL,
+      -- content depends upon key type
+      regInfo   SEQUENCE SIZE(1..MAX) OF
+          SingleAttribute{{RegInfoSet}} OPTIONAL }
+
+  CertRequest ::= SEQUENCE {
+      certReqId     INTEGER,
+      -- ID for matching request and reply
+      certTemplate  CertTemplate,
+      -- Selected fields of cert to be issued
+      controls      Controls OPTIONAL }
+      -- Attributes affecting issuance
+
+  CertTemplate ::= SEQUENCE {
+      version      [0] Version               OPTIONAL,
+      serialNumber [1] INTEGER               OPTIONAL,
+      signingAlg   [2] AlgorithmIdentifier{SIGNATURE-ALGORITHM,
+                           {SignatureAlgorithms}}   OPTIONAL,
+      issuer       [3] Name                  OPTIONAL,
+      validity     [4] OptionalValidity      OPTIONAL,
+      subject      [5] Name                  OPTIONAL,
+      publicKey    [6] SubjectPublicKeyInfo  OPTIONAL,
+      issuerUID    [7] UniqueIdentifier      OPTIONAL,
+      subjectUID   [8] UniqueIdentifier      OPTIONAL,
+      extensions   [9] Extensions{{CertExtensions}}  OPTIONAL }
+
+  OptionalValidity ::= SEQUENCE {
+      notBefore  [0] Time OPTIONAL,
+      notAfter   [1] Time OPTIONAL } -- at least one MUST be present
+
+  Controls  ::= SEQUENCE SIZE(1..MAX) OF SingleAttribute
+                    {{RegControlSet}}
+
+  ProofOfPossession ::= CHOICE {
+      raVerified        [0] NULL,
+      -- used if the RA has already verified that the requester is in
+      -- possession of the private key
+      signature         [1] POPOSigningKey,
+      keyEncipherment   [2] POPOPrivKey,
+      keyAgreement      [3] POPOPrivKey }
+
+  POPOSigningKey ::= SEQUENCE {
+      poposkInput           [0] POPOSigningKeyInput OPTIONAL,
+      algorithmIdentifier   AlgorithmIdentifier{SIGNATURE-ALGORITHM,
+                                {SignatureAlgorithms}},
+      signature             BIT STRING }
+      -- The signature (using "algorithmIdentifier") is on the
+      -- DER-encoded value of poposkInput.  NOTE: If the CertReqMsg
+      -- certReq CertTemplate contains the subject and publicKey values,
+      -- then poposkInput MUST be omitted and the signature MUST be
+      -- computed over the DER-encoded value of CertReqMsg certReq.  If
+      -- the CertReqMsg certReq CertTemplate does not contain both the
+      -- public key and subject values (i.e., if it contains only one
+      -- of these, or neither), then poposkInput MUST be present and
+      -- MUST be signed.
+
+  POPOSigningKeyInput ::= SEQUENCE {
+      authInfo            CHOICE {
+       sender              [0] GeneralName,
+       -- used only if an authenticated identity has been
+       -- established for the sender (e.g., a DN from a
+       -- previously-issued and currently-valid certificate)
+       publicKeyMAC        PKMACValue },
+       -- used if no authenticated GeneralName currently exists for
+       -- the sender; publicKeyMAC contains a password-based MAC
+       -- on the DER-encoded value of publicKey
+      publicKey           SubjectPublicKeyInfo }  -- from CertTemplate
+
+  PKMACValue ::= SEQUENCE {
+      algId  AlgorithmIdentifier{MAC-ALGORITHM,
+                 {Password-MACAlgorithms}},
+      value  BIT STRING }
+
+  --
+  --  Define the currently only acceptable MAC algorithm to be used
+  --  for the PKMACValue structure
+  --
+
+  id-PasswordBasedMac OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+      usa(840) nt(113533) nsn(7) algorithms(66) 13 }
+
+  Password-MACAlgorithms MAC-ALGORITHM ::= {
+      {IDENTIFIER id-PasswordBasedMac
+       PARAMS TYPE PBMParameter ARE required
+       IS-KEYED-MAC TRUE
+      }, ...
+  }
+
+  PBMParameter ::= SEQUENCE {
+     salt                OCTET STRING,
+     owf                 AlgorithmIdentifier{DIGEST-ALGORITHM,
+                             {DigestAlgorithms}},
+     -- AlgId for a One-Way Function (SHA-1 recommended)
+     iterationCount      INTEGER,
+     -- number of times the OWF is applied
+     mac                 AlgorithmIdentifier{MAC-ALGORITHM,
+                             {MACAlgorithms}}
+     -- the MAC AlgId (e.g., DES-MAC, Triple-DES-MAC, or HMAC
+  }
+
+  DigestAlgorithms DIGEST-ALGORITHM ::= {
+     mda-sha1, ...
+  }
+
+  MACAlgorithms MAC-ALGORITHM ::= {
+      -- The modules containing the ASN.1 for the DES and 3DES MAC
+      -- algorithms have not been updated at the time that this is
+      -- being published.  Users of this module should define the
+      -- appropriate MAC-ALGORITHM objects and uncomment the
+      -- following lines if they support these MAC algorithms.
+      -- maca-des-mac | maca-3des-mac --
+      maca-hMAC-SHA1,
+      ...
+  }
+
+  POPOPrivKey ::= CHOICE {
+      thisMessage       [0] BIT STRING,         -- Deprecated
+      -- possession is proven in this message (which contains
+      -- the private key itself (encrypted for the CA))
+      subsequentMessage [1] SubsequentMessage,
+      -- possession will be proven in a subsequent message
+      dhMAC             [2] BIT STRING,         -- Deprecated
+      agreeMAC          [3] PKMACValue,
+      encryptedKey      [4] EnvelopedData }
+      -- for keyAgreement (only), possession is proven in this message
+      -- (which contains a MAC (over the DER-encoded value of the
+      -- certReq parameter in CertReqMsg, which MUST include both
+      -- subject and publicKey) based on a key derived from the end
+      -- entity's private DH key and the CA's public DH key);
+
+  SubsequentMessage ::= INTEGER {
+      encrCert (0),
+      -- requests that resulting certificate be encrypted for the
+      -- end entity (following which, POP will be proven in a
+      -- confirmation message)
+      challengeResp (1) }
+      -- requests that CA engage in challenge-response exchange with
+      -- end entity in order to prove private key possession
+
+  --
+  -- id-ct-encKeyWithID content type used as the content type for the
+  -- EnvelopedData in POPOPrivKey.
+  -- It contains both a private key and an identifier for key escrow
+  -- agents to check against recovery requestors.
+  --
+
+  ct-encKeyWithID CONTENT-TYPE ::=
+      { EncKeyWithID IDENTIFIED BY id-ct-encKeyWithID }
+
+  id-ct-encKeyWithID OBJECT IDENTIFIER ::= {id-ct 21}
+
+  EncKeyWithID ::= SEQUENCE {
+      privateKey           PrivateKeyInfo,
+      identifier CHOICE {
+          string             UTF8String,
+          generalName        GeneralName
+      } OPTIONAL
+  }
+
+  PrivateKeyInfo ::= SEQUENCE {
+     version                   INTEGER,
+     privateKeyAlgorithm       AlgorithmIdentifier{PUBLIC-KEY, {...}},
+     privateKey                OCTET STRING,
+               --  Structure of public key is in PUBLIC-KEY.&PrivateKey
+     attributes                [0] IMPLICIT Attributes OPTIONAL
+  }
+
+  Attributes ::= SET OF AttributeSet{{PrivateKeyAttributes}}
+  PrivateKeyAttributes ATTRIBUTE ::= {...}
+
+  --
+  -- 6.  Registration Controls in CRMF
+  --
+
+  id-regCtrl OBJECT IDENTIFIER ::= { id-pkip 1 }
+
+  RegControlSet ATTRIBUTE ::= {
+      regCtrl-regToken | regCtrl-authenticator |
+      regCtrl-pkiPublicationInfo | regCtrl-pkiArchiveOptions |
+      regCtrl-oldCertID | regCtrl-protocolEncrKey, ... }
+
+  --
+  --  6.1.  Registration Token Control
+  --
+
+  regCtrl-regToken ATTRIBUTE ::=
+      { TYPE RegToken IDENTIFIED BY id-regCtrl-regToken }
+
+  id-regCtrl-regToken OBJECT IDENTIFIER ::= { id-regCtrl 1 }
+
+  RegToken ::= UTF8String
+
+  --
+  --  6.2.  Authenticator Control
+  --
+
+  regCtrl-authenticator ATTRIBUTE ::=
+      { TYPE Authenticator IDENTIFIED BY id-regCtrl-authenticator }
+
+  id-regCtrl-authenticator OBJECT IDENTIFIER ::= { id-regCtrl 2 }
+
+  Authenticator ::= UTF8String
+
+  --
+  --  6.3.  Publication Information Control
+  --
+
+  regCtrl-pkiPublicationInfo ATTRIBUTE ::=
+      { TYPE PKIPublicationInfo IDENTIFIED BY
+          id-regCtrl-pkiPublicationInfo }
+
+  id-regCtrl-pkiPublicationInfo OBJECT IDENTIFIER ::= { id-regCtrl 3 }
+
+  PKIPublicationInfo ::= SEQUENCE {
+      action     INTEGER {
+                     dontPublish (0),
+                     pleasePublish (1) },
+      pubInfos  SEQUENCE SIZE (1..MAX) OF SinglePubInfo OPTIONAL }
+      -- pubInfos MUST NOT be present if action is "dontPublish"
+      -- (if action is "pleasePublish" and pubInfos is omitted,
+      -- "dontCare" is assumed)
+
+  SinglePubInfo ::= SEQUENCE {
+      pubMethod    INTEGER {
+          dontCare    (0),
+          x500        (1),
+          web         (2),
+          ldap        (3) },
+      pubLocation  GeneralName OPTIONAL }
+
+  --
+  --  6.4.  Archive Options Control
+  --
+
+  regCtrl-pkiArchiveOptions ATTRIBUTE ::=
+      { TYPE PKIArchiveOptions IDENTIFIED BY
+          id-regCtrl-pkiArchiveOptions }
+
+  id-regCtrl-pkiArchiveOptions OBJECT IDENTIFIER ::= { id-regCtrl 4 }
+
+  PKIArchiveOptions ::= CHOICE {
+      encryptedPrivKey     [0] EncryptedKey,
+      -- the actual value of the private key
+      keyGenParameters     [1] KeyGenParameters,
+      -- parameters that allow the private key to be re-generated
+      archiveRemGenPrivKey [2] BOOLEAN }
+      -- set to TRUE if sender wishes receiver to archive the private
+      -- key of a key pair that the receiver generates in response to
+      -- this request; set to FALSE if no archive is desired.
+
+  EncryptedKey ::= CHOICE {
+      encryptedValue        EncryptedValue,   -- Deprecated
+      envelopedData     [0] EnvelopedData }
+      -- The encrypted private key MUST be placed in the envelopedData
+      -- encryptedContentInfo encryptedContent OCTET STRING.
+
+  --
+  --  We skipped doing the full constraints here since this structure
+  --      has been deprecated in favor of EnvelopedData
+  --
+
+  EncryptedValue ::= SEQUENCE {
+      intendedAlg   [0] AlgorithmIdentifier{ALGORITHM, {...}}  OPTIONAL,
+      -- the intended algorithm for which the value will be used
+      symmAlg       [1] AlgorithmIdentifier{ALGORITHM, {...}}  OPTIONAL,
+      -- the symmetric algorithm used to encrypt the value
+      encSymmKey    [2] BIT STRING           OPTIONAL,
+      -- the (encrypted) symmetric key used to encrypt the value
+      keyAlg        [3] AlgorithmIdentifier{ALGORITHM, {...}}  OPTIONAL,
+      -- algorithm used to encrypt the symmetric key
+      valueHint     [4] OCTET STRING         OPTIONAL,
+      -- a brief description or identifier of the encValue content
+      -- (may be meaningful only to the sending entity, and used only
+      -- if EncryptedValue might be re-examined by the sending entity
+      -- in the future)
+      encValue       BIT STRING }
+      -- the encrypted value itself
+  -- When EncryptedValue is used to carry a private key (as opposed to
+  -- a certificate), implementations MUST support the encValue field
+  -- containing an encrypted PrivateKeyInfo as defined in [PKCS11],
+  -- section 12.11.  If encValue contains some other format/encoding
+  -- for the private key, the first octet of valueHint MAY be used
+  -- to indicate the format/encoding (but note that the possible values
+  -- of this octet are not specified at this time).  In all cases, the
+  -- intendedAlg field MUST be used to indicate at least the OID of
+  -- the intended algorithm of the private key, unless this information
+  -- is known a priori to both sender and receiver by some other means.
+
+  KeyGenParameters ::= OCTET STRING
+
+  --
+  --  6.5.  OldCert ID Control
+  --
+
+  regCtrl-oldCertID ATTRIBUTE ::=
+      { TYPE OldCertId IDENTIFIED BY id-regCtrl-oldCertID }
+
+  id-regCtrl-oldCertID  OBJECT IDENTIFIER ::= { id-regCtrl 5 }
+
+  OldCertId ::= CertId
+
+  CertId ::= SEQUENCE {
+      issuer           GeneralName,
+      serialNumber     INTEGER }
+
+  --
+  -- 6.6.  Protocol Encryption Key Control
+  --
+
+  regCtrl-protocolEncrKey ATTRIBUTE ::=
+      { TYPE ProtocolEncrKey IDENTIFIED BY id-regCtrl-protocolEncrKey }
+  id-regCtrl-protocolEncrKey    OBJECT IDENTIFIER ::= { id-regCtrl 6 }
+
+  ProtocolEncrKey ::= SubjectPublicKeyInfo
+
+  --
+  -- 7.  Registration Info in CRMF
+  --
+
+  id-regInfo OBJECT IDENTIFIER ::= { id-pkip 2 }
+
+  RegInfoSet ATTRIBUTE ::=
+      { regInfo-utf8Pairs | regInfo-certReq }
+
+  --
+  -- 7.1.  utf8Pairs RegInfo Control
+  --
+
+  regInfo-utf8Pairs ATTRIBUTE ::=
+      { TYPE UTF8Pairs IDENTIFIED BY id-regInfo-utf8Pairs }
+
+  id-regInfo-utf8Pairs    OBJECT IDENTIFIER ::= { id-regInfo 1 }
+  --with syntax
+  UTF8Pairs ::= UTF8String
+
+  --
+  --  7.2.  certReq RegInfo Control
+  --
+
+  regInfo-certReq ATTRIBUTE ::=
+      { TYPE CertReq IDENTIFIED BY id-regInfo-certReq }
+
+  id-regInfo-certReq       OBJECT IDENTIFIER ::= { id-regInfo 2 }
+  --with syntax
+  CertReq ::= CertRequest
+
+  END
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Protected-Part-Descriptors.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Protected-Part-Descriptors.asn1
index 5512f1590b..5512f1590b 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Protected-Part-Descriptors.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Protected-Part-Descriptors.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/ProtocolObjectIdentifiers.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/ProtocolObjectIdentifiers.asn1
index d6e88a2e47..d6e88a2e47 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/ProtocolObjectIdentifiers.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/ProtocolObjectIdentifiers.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Raster-Gr-Coding-Attributes.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Raster-Gr-Coding-Attributes.asn1
index 258c5f0b23..258c5f0b23 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Raster-Gr-Coding-Attributes.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Raster-Gr-Coding-Attributes.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Raster-Gr-Presentation-Attributes.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Raster-Gr-Presentation-Attributes.asn1
index c8f3a2ff33..c8f3a2ff33 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Raster-Gr-Presentation-Attributes.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Raster-Gr-Presentation-Attributes.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Raster-Gr-Profile-Attributes.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Raster-Gr-Profile-Attributes.asn1
index 365144ff35..365144ff35 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Raster-Gr-Profile-Attributes.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Raster-Gr-Profile-Attributes.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Reliable-Transfer-APDU.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Reliable-Transfer-APDU.asn1
index d00570b7e7..d00570b7e7 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Reliable-Transfer-APDU.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Reliable-Transfer-APDU.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Remote-Operations-Abstract-Syntaxes.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Remote-Operations-Abstract-Syntaxes.asn1
index 4a59cc403b..4a59cc403b 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Remote-Operations-Abstract-Syntaxes.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Remote-Operations-Abstract-Syntaxes.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Remote-Operations-Generic-ROS-PDUs.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Remote-Operations-Generic-ROS-PDUs.asn1
index e55ea3c05e..e55ea3c05e 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Remote-Operations-Generic-ROS-PDUs.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Remote-Operations-Generic-ROS-PDUs.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Remote-Operations-Information-Objects-extensions.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Remote-Operations-Information-Objects-extensions.asn1
index 671cf0e780..671cf0e780 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Remote-Operations-Information-Objects-extensions.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Remote-Operations-Information-Objects-extensions.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Remote-Operations-Information-Objects.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Remote-Operations-Information-Objects.asn1
index b497e4126b..b497e4126b 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Remote-Operations-Information-Objects.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Remote-Operations-Information-Objects.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Remote-Operations-Realizations.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Remote-Operations-Realizations.asn1
index 73b49c8d7a..73b49c8d7a 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Remote-Operations-Realizations.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Remote-Operations-Realizations.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Remote-Operations-Useful-Definitions.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Remote-Operations-Useful-Definitions.asn1
index e526ff4600..e526ff4600 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Remote-Operations-Useful-Definitions.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Remote-Operations-Useful-Definitions.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/SCVP-2009.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/SCVP-2009.asn1
new file mode 100644
index 0000000000..f74f76ff7c
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/SCVP-2009.asn1
@@ -0,0 +1,608 @@
+  SCVP-2009
+      { iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-scvp-02(52) }
+  DEFINITIONS IMPLICIT TAGS ::=
+  BEGIN
+  IMPORTS
+
+  Extensions{}, EXTENSION, ATTRIBUTE
+  FROM PKIX-CommonTypes-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-pkixCommon-02(57) }
+
+  AlgorithmIdentifier{}, SIGNATURE-ALGORITHM, PUBLIC-KEY, KEY-AGREE,
+      DIGEST-ALGORITHM, KEY-DERIVATION, MAC-ALGORITHM
+  FROM AlgorithmInformation-2009
+      {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0)
+      id-mod-algorithmInformation-02(58)}
+
+  Certificate, CertificateList, CertificateSerialNumber,
+      SignatureAlgorithms, SubjectPublicKeyInfo
+  FROM PKIX1Explicit-2009
+      { iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-explicit-02(51) }
+
+  GeneralNames, GeneralName, KeyUsage, KeyPurposeId
+  FROM PKIX1Implicit-2009
+      { iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-implicit-02(59) }
+
+  AttributeCertificate
+  FROM PKIXAttributeCertificate-2009
+      { iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-attribute-cert-02(47) }
+
+  OCSPResponse
+  FROM OCSP-2009
+      { iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) id-mod(0) id-mod-ocsp-02(48) }
+
+  ContentInfo, CONTENT-TYPE
+  FROM CryptographicMessageSyntax-2009
+      { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9)
+      smime(16) modules(0) id-mod-cms-2004-02(41) }
+
+  mda-sha1
+  FROM PKIXAlgs-2009
+      { iso(1) identified-organization(3) dod(6)
+      internet(1) security(5) mechanisms(5) pkix(7) id-mod(0)
+      id-mod-pkix1-algorithms2008-02(56) } ;
+
+  ContentTypes CONTENT-TYPE ::= {ct-scvp-certValRequest |
+      ct-scvp-certValResponse | ct-scvp-valPolRequest |
+      ct-scvp-valPolResponse, ... }
+
+  id-ct OBJECT IDENTIFIER ::=
+      { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9)
+      id-smime(16) 1 }
+
+  ct-scvp-certValRequest CONTENT-TYPE ::=
+      { CVRequest IDENTIFIED BY id-ct-scvp-certValRequest }
+
+  id-ct-scvp-certValRequest OBJECT IDENTIFIER ::= { id-ct 10 }
+
+  -- SCVP Certificate Validation Request
+
+  CVRequest ::= SEQUENCE {
+      cvRequestVersion           INTEGER DEFAULT 1,
+      query                      Query,
+      requestorRef           [0] GeneralNames OPTIONAL,
+      requestNonce           [1] OCTET STRING OPTIONAL,
+      requestorName          [2] GeneralName OPTIONAL,
+      responderName          [3] GeneralName OPTIONAL,
+      requestExtensions      [4] Extensions{{RequestExtensions}}
+                                     OPTIONAL,
+      signatureAlg           [5] AlgorithmIdentifier
+                                     {SIGNATURE-ALGORITHM,
+                                         {SignatureAlgorithms}}
+                                     OPTIONAL,
+      hashAlg                [6] OBJECT IDENTIFIER OPTIONAL,
+      requestorText          [7] UTF8String (SIZE (1..256)) OPTIONAL
+  }
+
+  -- Set of signature algorithms is coming from RFC 5280
+  -- SignatureAlgorithms SIGNATURE-ALGORITHM ::= {...}
+
+  -- Add supported request extensions here; all new items should
+  --      be added after the extension marker
+
+  RequestExtensions EXTENSION ::= {...}
+
+  Query ::= SEQUENCE {
+      queriedCerts             CertReferences,
+      checks                   CertChecks,
+      wantBack             [1] WantBack OPTIONAL,
+      validationPolicy         ValidationPolicy,
+      responseFlags            ResponseFlags OPTIONAL,
+      serverContextInfo    [2] OCTET STRING OPTIONAL,
+      validationTime       [3] GeneralizedTime OPTIONAL,
+      intermediateCerts    [4] CertBundle OPTIONAL,
+      revInfos             [5] RevocationInfos OPTIONAL,
+      producedAt           [6] GeneralizedTime OPTIONAL,
+      queryExtensions      [7] Extensions{{QueryExtensions}} OPTIONAL
+  }
+
+  -- Add supported query extensions here; all new items should be added
+  --      after the extension marker
+
+  QueryExtensions EXTENSION ::= {...}
+
+  CertReferences ::= CHOICE {
+      pkcRefs       [0] SEQUENCE SIZE (1..MAX) OF PKCReference,
+      acRefs        [1] SEQUENCE SIZE (1..MAX) OF ACReference
+  }
+
+  CertReference::= CHOICE {
+      pkc               PKCReference,
+      ac                ACReference
+  }
+
+  PKCReference ::= CHOICE {
+      cert          [0] Certificate,
+      pkcRef        [1] SCVPCertID
+  }
+
+  ACReference ::= CHOICE {
+      attrCert      [2] AttributeCertificate,
+      acRef         [3] SCVPCertID
+  }
+
+  HashAlgorithm ::= AlgorithmIdentifier{DIGEST-ALGORITHM,
+                        {mda-sha1, ...}}
+
+  SCVPCertID ::= SEQUENCE {
+     certHash        OCTET STRING,
+     issuerSerial    SCVPIssuerSerial,
+     hashAlgorithm   HashAlgorithm
+                         DEFAULT { algorithm mda-sha1.&id }
+  }
+
+  SCVPIssuerSerial ::= SEQUENCE {
+      issuer         GeneralNames,
+      serialNumber   CertificateSerialNumber
+  }
+
+  ValidationPolicy ::= SEQUENCE {
+      validationPolRef           ValidationPolRef,
+      validationAlg          [0] ValidationAlg OPTIONAL,
+      userPolicySet          [1] SEQUENCE SIZE (1..MAX) OF OBJECT
+                                IDENTIFIER OPTIONAL,
+      inhibitPolicyMapping   [2] BOOLEAN OPTIONAL,
+      requireExplicitPolicy  [3] BOOLEAN OPTIONAL,
+      inhibitAnyPolicy       [4] BOOLEAN OPTIONAL,
+      trustAnchors           [5] TrustAnchors OPTIONAL,
+      keyUsages              [6] SEQUENCE OF KeyUsage OPTIONAL,
+      extendedKeyUsages      [7] SEQUENCE OF KeyPurposeId OPTIONAL,
+      specifiedKeyUsages     [8] SEQUENCE OF KeyPurposeId OPTIONAL
+  }
+
+  CertChecks ::= SEQUENCE SIZE (1..MAX) OF
+      OBJECT IDENTIFIER (CertCheckSet | ACertCheckSet, ... )
+
+  WantBack ::= SEQUENCE SIZE (1..MAX) OF
+      WANT-BACK.&id ({AllWantBacks})
+
+  POLICY ::= ATTRIBUTE
+
+  ValidationPolRefSet POLICY ::= {
+      svp-defaultValPolicy, ...
+  }
+
+  ValidationPolRef ::= SEQUENCE {
+     valPolId             POLICY.&id,
+     valPolParams         POLICY.&Type OPTIONAL
+  }
+
+  ValidationAlgSet POLICY ::= {
+          svp-basicValAlg, ...
+  }
+
+  ValidationAlg ::= SEQUENCE {
+      valAlgId               POLICY.&id,
+      parameters             POLICY.&Type OPTIONAL
+  }
+
+  NameValidationAlgSet POLICY ::= {
+      svp-nameValAlg, ...
+  }
+
+  NameValidationAlgParams ::= SEQUENCE {
+      nameCompAlgId          OBJECT IDENTIFIER (NameCompAlgSet, ... ),
+      validationNames        GeneralNames
+  }
+
+  TrustAnchors ::= SEQUENCE SIZE (1..MAX) OF PKCReference
+  KeyAgreePublicKey ::= SEQUENCE {
+      algorithm           AlgorithmIdentifier{KEY-AGREE,
+                              {SupportedKeyAgreePublicKeys}},
+      publicKey           BIT STRING,
+      macAlgorithm        AlgorithmIdentifier{MAC-ALGORITHM,
+                              {SupportedMACAlgorithms}},
+      kDF                 AlgorithmIdentifier{KEY-DERIVATION,
+                              {SupportedKeyDerivationFunctions}}
+                              OPTIONAL
+  }
+
+  SupportedKeyAgreePublicKeys KEY-AGREE ::= {...}
+  SupportedMACAlgorithms MAC-ALGORITHM ::= {...}
+  SupportedKeyDerivationFunctions KEY-DERIVATION ::= {...}
+
+  ResponseFlags ::= SEQUENCE {
+      fullRequestInResponse      [0] BOOLEAN DEFAULT FALSE,
+      responseValidationPolByRef [1] BOOLEAN DEFAULT TRUE,
+      protectResponse            [2] BOOLEAN DEFAULT TRUE,
+      cachedResponse             [3] BOOLEAN DEFAULT TRUE
+  }
+
+  CertBundle ::= SEQUENCE SIZE (1..MAX) OF Certificate
+
+  RevocationInfos ::= SEQUENCE SIZE (1..MAX) OF RevocationInfo
+
+  RevocationInfo ::= CHOICE {
+      crl                    [0] CertificateList,
+      delta-crl              [1] CertificateList,
+      ocsp                   [2] OCSPResponse,
+      other                  [3] OtherRevInfo
+  }
+
+  REV-INFO ::= TYPE-IDENTIFIER
+
+  OtherRevInfo ::= SEQUENCE {
+      riType                     REV-INFO.&id,
+      riValue                    REV-INFO.&Type
+  }
+
+  -- SCVP Certificate Validation Response
+
+  ct-scvp-certValResponse CONTENT-TYPE ::=
+      { CVResponse IDENTIFIED BY id-ct-scvp-certValResponse }
+
+  id-ct-scvp-certValResponse OBJECT IDENTIFIER ::= { id-ct 11 }
+
+  CVResponse ::= SEQUENCE {
+      cvResponseVersion          INTEGER,
+      serverConfigurationID      INTEGER,
+      producedAt                 GeneralizedTime,
+      responseStatus             ResponseStatus,
+      respValidationPolicy   [0] RespValidationPolicy OPTIONAL,
+      requestRef             [1] RequestReference OPTIONAL,
+      requestorRef           [2] GeneralNames OPTIONAL,
+      requestorName          [3] GeneralNames OPTIONAL,
+      replyObjects           [4] ReplyObjects OPTIONAL,
+      respNonce              [5] OCTET STRING OPTIONAL,
+      serverContextInfo      [6] OCTET STRING OPTIONAL,
+      cvResponseExtensions   [7] Extensions{{CVResponseExtensions}}
+                                     OPTIONAL,
+      requestorText          [8] UTF8String (SIZE (1..256)) OPTIONAL
+  }
+
+  --  This document defines no extensions
+  CVResponseExtensions EXTENSION ::= {...}
+
+  ResponseStatus ::= SEQUENCE {
+     statusCode               CVStatusCode DEFAULT  okay,
+     errorMessage             UTF8String OPTIONAL
+  }
+
+  CVStatusCode ::= ENUMERATED {
+     okay                               (0),
+     skipUnrecognizedItems              (1),
+     tooBusy                           (10),
+     invalidRequest                    (11),
+     internalError                     (12),
+     badStructure                      (20),
+     unsupportedVersion                (21),
+     abortUnrecognizedItems            (22),
+     unrecognizedSigKey                (23),
+     badSignatureOrMAC                 (24),
+     unableToDecode                    (25),
+     notAuthorized                     (26),
+     unsupportedChecks                 (27),
+     unsupportedWantBacks              (28),
+     unsupportedSignatureOrMAC         (29),
+     invalidSignatureOrMAC             (30),
+     protectedResponseUnsupported      (31),
+     unrecognizedResponderName         (32),
+     relayingLoop                      (40),
+     unrecognizedValPol                (50),
+     unrecognizedValAlg                (51),
+     fullRequestInResponseUnsupported  (52),
+     fullPolResponseUnsupported        (53),
+     inhibitPolicyMappingUnsupported   (54),
+     requireExplicitPolicyUnsupported  (55),
+     inhibitAnyPolicyUnsupported       (56),
+     validationTimeUnsupported         (57),
+     unrecognizedCritQueryExt          (63),
+     unrecognizedCritRequestExt        (64),
+     ...
+  }
+
+  RespValidationPolicy ::= ValidationPolicy
+
+  RequestReference ::= CHOICE {
+      requestHash   [0] HashValue, -- hash of CVRequest
+      fullRequest   [1] CVRequest }
+
+  HashValue ::= SEQUENCE {
+      algorithm         HashAlgorithm
+                            DEFAULT { algorithm mda-sha1.&id },
+      value             OCTET STRING }
+
+  ReplyObjects ::= SEQUENCE SIZE (1..MAX) OF CertReply
+
+  CertReply ::= SEQUENCE {
+      cert                       CertReference,
+      replyStatus                ReplyStatus DEFAULT success,
+      replyValTime               GeneralizedTime,
+      replyChecks                ReplyChecks,
+      replyWantBacks             ReplyWantBacks,
+      validationErrors       [0] SEQUENCE SIZE (1..MAX) OF
+          OBJECT IDENTIFIER ( BasicValidationErrorSet |
+                              NameValidationErrorSet,
+                              ... ) OPTIONAL,
+      nextUpdate             [1] GeneralizedTime OPTIONAL,
+      certReplyExtensions    [2] Extensions{{...}} OPTIONAL
+  }
+
+  ReplyStatus ::= ENUMERATED {
+      success                    (0),
+      malformedPKC               (1),
+      malformedAC                (2),
+      unavailableValidationTime  (3),
+      referenceCertHashFail      (4),
+      certPathConstructFail      (5),
+      certPathNotValid           (6),
+      certPathNotValidNow        (7),
+      wantBackUnsatisfied        (8)
+  }
+  ReplyChecks ::= SEQUENCE OF ReplyCheck
+
+  ReplyCheck ::= SEQUENCE {
+      check    OBJECT IDENTIFIER (CertCheckSet | ACertCheckSet, ... ),
+      status   INTEGER DEFAULT 0
+  }
+
+  ReplyWantBacks ::= SEQUENCE OF ReplyWantBack
+
+  ReplyWantBack::= SEQUENCE {
+      wb     WANT-BACK.&id({AllWantBacks}),
+      value  OCTET STRING
+                 (CONTAINING WANT-BACK.&Type({AllWantBacks}{@wb}))
+  }
+
+  WANT-BACK ::= TYPE-IDENTIFIER
+
+  AllWantBacks WANT-BACK ::= {
+      WantBackSet | ACertWantBackSet | AnyWantBackSet, ...
+  }
+
+  CertBundles ::= SEQUENCE SIZE (1..MAX) OF CertBundle
+
+  RevInfoWantBack ::= SEQUENCE {
+      revocationInfo             RevocationInfos,
+      extraCerts                 CertBundle OPTIONAL
+  }
+
+  SCVPResponses ::= SEQUENCE OF ContentInfo
+
+  -- SCVP Validation Policies Request
+
+  ct-scvp-valPolRequest CONTENT-TYPE ::=
+      { ValPolRequest IDENTIFIED BY id-ct-scvp-valPolRequest }
+
+  id-ct-scvp-valPolRequest OBJECT IDENTIFIER ::= { id-ct 12 }
+
+  ValPolRequest ::= SEQUENCE {
+      vpRequestVersion           INTEGER DEFAULT 1,
+      requestNonce               OCTET STRING
+  }
+
+  -- SCVP Validation Policies Response
+
+  ct-scvp-valPolResponse CONTENT-TYPE ::=
+      { ValPolResponse IDENTIFIED BY id-ct-scvp-valPolResponse }
+
+  id-ct-scvp-valPolResponse OBJECT IDENTIFIER ::= { id-ct 13 }
+  ValPolResponse ::= SEQUENCE {
+      vpResponseVersion       INTEGER,
+      maxCVRequestVersion     INTEGER,
+      maxVPRequestVersion     INTEGER,
+      serverConfigurationID   INTEGER,
+      thisUpdate              GeneralizedTime,
+      nextUpdate              GeneralizedTime OPTIONAL,
+      supportedChecks         CertChecks,
+      supportedWantBacks      WantBack,
+      validationPolicies      SEQUENCE OF OBJECT IDENTIFIER,
+      validationAlgs          SEQUENCE OF OBJECT IDENTIFIER,
+      authPolicies            SEQUENCE OF AuthPolicy,
+      responseTypes           ResponseTypes,
+      defaultPolicyValues     RespValidationPolicy,
+      revocationInfoTypes     RevocationInfoTypes,
+      signatureGeneration     SEQUENCE OF AlgorithmIdentifier
+                                  {SIGNATURE-ALGORITHM,
+                                      {SignatureAlgorithms}},
+      signatureVerification   SEQUENCE OF AlgorithmIdentifier
+                                  {SIGNATURE-ALGORITHM,
+                                      {SignatureAlgorithms}},
+      hashAlgorithms          SEQUENCE SIZE (1..MAX) OF
+                                 OBJECT IDENTIFIER,
+      serverPublicKeys        SEQUENCE OF KeyAgreePublicKey
+                                 OPTIONAL,
+      clockSkew               INTEGER DEFAULT 10,
+      requestNonce            OCTET STRING OPTIONAL
+  }
+
+  ResponseTypes  ::= ENUMERATED {
+      cached-only                (0),
+      non-cached-only            (1),
+      cached-and-non-cached      (2)
+  }
+
+  RevocationInfoTypes ::= BIT STRING {
+      fullCRLs                   (0),
+      deltaCRLs                  (1),
+      indirectCRLs               (2),
+      oCSPResponses              (3)
+  }
+
+  AuthPolicy ::= OBJECT IDENTIFIER
+
+  -- SCVP Check Identifiers
+
+  id-stc OBJECT IDENTIFIER ::=
+      { iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) 17 }
+
+  CertCheckSet OBJECT IDENTIFIER ::= {
+      id-stc-build-pkc-path | id-stc-build-valid-pkc-path |
+      id-stc-build-status-checked-pkc-path, ... }
+
+  id-stc-build-pkc-path        OBJECT IDENTIFIER ::= { id-stc 1 }
+  id-stc-build-valid-pkc-path  OBJECT IDENTIFIER ::= { id-stc 2 }
+  id-stc-build-status-checked-pkc-path
+                              OBJECT IDENTIFIER ::= { id-stc 3 }
+
+  ACertCheckSet OBJECT IDENTIFIER ::= {
+      id-stc-build-aa-path | id-stc-build-valid-aa-path |
+      id-stc-build-status-checked-aa-path |
+      id-stc-status-check-ac-and-build-status-checked-aa-path
+  }
+
+  id-stc-build-aa-path         OBJECT IDENTIFIER ::= { id-stc 4 }
+  id-stc-build-valid-aa-path   OBJECT IDENTIFIER ::= { id-stc 5 }
+  id-stc-build-status-checked-aa-path
+                              OBJECT IDENTIFIER ::= { id-stc 6 }
+  id-stc-status-check-ac-and-build-status-checked-aa-path
+                              OBJECT IDENTIFIER ::= { id-stc 7 }
+
+  -- SCVP WantBack Identifiers
+
+  id-swb OBJECT IDENTIFIER ::=
+      { iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) 18 }
+
+  WantBackSet WANT-BACK ::= {
+      swb-pkc-cert | swb-pkc-best-cert-path |
+      swb-pkc-revocation-info | swb-pkc-public-key-info |
+      swb-pkc-all-cert-paths | swb-pkc-ee-revocation-info |
+      swb-pkc-CAs-revocation-info
+  }
+
+  ACertWantBackSet WANT-BACK ::= {
+      swb-ac-cert | swb-aa-cert-path |
+      swb-aa-revocation-info | swb-ac-revocation-info
+  }
+
+  AnyWantBackSet WANT-BACK ::= { swb-relayed-responses }
+
+  swb-pkc-best-cert-path WANT-BACK ::=
+      { CertBundle IDENTIFIED BY id-swb-pkc-best-cert-path }
+  id-swb-pkc-best-cert-path       OBJECT IDENTIFIER ::= { id-swb 1 }
+  swb-pkc-revocation-info WANT-BACK ::=
+      { RevInfoWantBack IDENTIFIED BY id-swb-pkc-revocation-info }
+  id-swb-pkc-revocation-info      OBJECT IDENTIFIER ::= { id-swb 2 }
+
+  swb-pkc-public-key-info WANT-BACK ::=
+      { SubjectPublicKeyInfo IDENTIFIED BY id-swb-pkc-public-key-info }
+  id-swb-pkc-public-key-info      OBJECT IDENTIFIER ::= { id-swb 4 }
+
+  swb-aa-cert-path WANT-BACK ::=
+      {CertBundle IDENTIFIED BY id-swb-aa-cert-path }
+  id-swb-aa-cert-path             OBJECT IDENTIFIER ::= { id-swb 5 }
+
+  swb-aa-revocation-info WANT-BACK ::=
+      { RevInfoWantBack IDENTIFIED BY id-swb-aa-revocation-info }
+  id-swb-aa-revocation-info       OBJECT IDENTIFIER ::= { id-swb 6 }
+
+  swb-ac-revocation-info WANT-BACK ::=
+      { RevInfoWantBack IDENTIFIED BY id-swb-ac-revocation-info }
+  id-swb-ac-revocation-info       OBJECT IDENTIFIER ::= { id-swb 7 }
+
+  swb-relayed-responses WANT-BACK ::=
+      {SCVPResponses IDENTIFIED BY id-swb-relayed-responses }
+
+  id-swb-relayed-responses        OBJECT IDENTIFIER ::= { id-swb 9 }
+
+  swb-pkc-all-cert-paths WANT-BACK ::=
+      {CertBundles IDENTIFIED BY id-swb-pkc-all-cert-paths }
+  id-swb-pkc-all-cert-paths       OBJECT IDENTIFIER ::= { id-swb 12}
+
+  swb-pkc-ee-revocation-info WANT-BACK ::=
+      { RevInfoWantBack IDENTIFIED BY id-swb-pkc-ee-revocation-info }
+  id-swb-pkc-ee-revocation-info   OBJECT IDENTIFIER ::= { id-swb 13}
+
+  swb-pkc-CAs-revocation-info WANT-BACK ::=
+      { RevInfoWantBack IDENTIFIED BY id-swb-pkc-CAs-revocation-info }
+  id-swb-pkc-CAs-revocation-info  OBJECT IDENTIFIER ::= { id-swb 14}
+
+  swb-pkc-cert WANT-BACK ::=
+      { Certificate IDENTIFIED BY id-swb-pkc-cert }
+  id-swb-pkc-cert OBJECT IDENTIFIER ::= { id-swb 10}
+
+  swb-ac-cert WANT-BACK ::=
+      { AttributeCertificate IDENTIFIED BY id-swb-ac-cert }
+  id-swb-ac-cert OBJECT IDENTIFIER ::= { id-swb 11}
+
+  -- SCVP Validation Policy and Algorithm Identifiers
+
+  id-svp OBJECT IDENTIFIER ::=
+      { iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) 19 }
+
+  svp-defaultValPolicy POLICY ::=
+      { IDENTIFIED BY id-svp-defaultValPolicy }
+
+  id-svp-defaultValPolicy OBJECT IDENTIFIER ::= { id-svp 1 }
+
+  -- SCVP Basic Validation Algorithm Identifier
+
+  svp-basicValAlg POLICY ::= {IDENTIFIED BY id-svp-basicValAlg }
+
+  id-svp-basicValAlg OBJECT IDENTIFIER ::= { id-svp 3 }
+
+  -- SCVP Basic Validation Algorithm Errors
+
+  id-bvae OBJECT IDENTIFIER ::= id-svp-basicValAlg
+
+  BasicValidationErrorSet OBJECT IDENTIFIER ::= {
+      id-bvae-expired | id-bvae-not-yet-valid |
+      id-bvae-wrongTrustAnchor | id-bvae-noValidCertPath |
+      id-bvae-revoked | id-bvae-invalidKeyPurpose |
+      id-bvae-invalidKeyUsage | id-bvae-invalidCertPolicy
+  }
+
+  id-bvae-expired              OBJECT IDENTIFIER ::= { id-bvae 1 }
+  id-bvae-not-yet-valid        OBJECT IDENTIFIER ::= { id-bvae 2 }
+  id-bvae-wrongTrustAnchor     OBJECT IDENTIFIER ::= { id-bvae 3 }
+  id-bvae-noValidCertPath      OBJECT IDENTIFIER ::= { id-bvae 4 }
+  id-bvae-revoked              OBJECT IDENTIFIER ::= { id-bvae 5 }
+  id-bvae-invalidKeyPurpose    OBJECT IDENTIFIER ::= { id-bvae 9 }
+  id-bvae-invalidKeyUsage      OBJECT IDENTIFIER ::= { id-bvae 10 }
+  id-bvae-invalidCertPolicy    OBJECT IDENTIFIER ::= { id-bvae 11 }
+
+  -- SCVP Name Validation Algorithm Identifier
+
+  svp-nameValAlg POLICY ::=
+      {TYPE NameValidationAlgParams IDENTIFIED BY id-svp-nameValAlg }
+
+  id-svp-nameValAlg OBJECT IDENTIFIER ::= { id-svp 2 }
+
+  -- SCVP Name Validation Algorithm DN comparison algorithm
+
+  NameCompAlgSet OBJECT IDENTIFIER ::= {
+      id-nva-dnCompAlg
+  }
+
+  id-nva-dnCompAlg   OBJECT IDENTIFIER ::= { id-svp 4 }
+  -- SCVP Name Validation Algorithm Errors
+
+  id-nvae OBJECT IDENTIFIER ::= id-svp-nameValAlg
+
+  NameValidationErrorSet OBJECT IDENTIFIER ::= {
+      id-nvae-name-mismatch | id-nvae-no-name | id-nvae-unknown-alg |
+      id-nvae-bad-name | id-nvae-bad-name-type | id-nvae-mixed-names
+  }
+
+  id-nvae-name-mismatch   OBJECT IDENTIFIER ::= { id-nvae 1 }
+  id-nvae-no-name         OBJECT IDENTIFIER ::= { id-nvae 2 }
+  id-nvae-unknown-alg     OBJECT IDENTIFIER ::= { id-nvae 3 }
+  id-nvae-bad-name        OBJECT IDENTIFIER ::= { id-nvae 4 }
+  id-nvae-bad-name-type   OBJECT IDENTIFIER ::= { id-nvae 5 }
+  id-nvae-mixed-names     OBJECT IDENTIFIER ::= { id-nvae 6 }
+
+  -- SCVP Extended Key Usage Key Purpose Identifiers
+
+  id-kp OBJECT IDENTIFIER ::=
+      { iso(1) identified-organization(3) dod(6) internet(1) security(5)
+      mechanisms(5) pkix(7) 3 }
+
+  SvcpExtKeyUsageSet OBJECT IDENTIFIER ::= {
+      id-kp-scvpServer | id-kp-scvpClient
+  }
+
+  id-kp-scvpServer   OBJECT IDENTIFIER ::= { id-kp 15 }
+
+  id-kp-scvpClient   OBJECT IDENTIFIER ::= { id-kp 16 }
+
+  END
diff --git a/lib/asn1/test/asn1_SUITE_data/rfcs/SecureMimeMessageV3dot1-2009.asn1 b/lib/asn1/test/asn1_SUITE_data/rfcs/SecureMimeMessageV3dot1-2009.asn1
new file mode 100644
index 0000000000..2bd2aaa435
--- /dev/null
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/SecureMimeMessageV3dot1-2009.asn1
@@ -0,0 +1,122 @@
+ SecureMimeMessageV3dot1-2009
+       {iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9)
+       smime(16) modules(0) id-mod-msg-v3dot1-02(39)}
+ DEFINITIONS IMPLICIT TAGS ::=
+ BEGIN
+ IMPORTS
+
+ SMIME-CAPS, SMIMECapabilities{}
+ FROM AlgorithmInformation-2009
+     {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+     mechanisms(5) pkix(7) id-mod(0)
+     id-mod-algorithmInformation-02(58)}
+
+ ATTRIBUTE
+ FROM PKIX-CommonTypes-2009
+     {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+     mechanisms(5) pkix(7) id-mod(0) id-mod-pkixCommon-02(57)}
+
+ SubjectKeyIdentifier, IssuerAndSerialNumber, RecipientKeyIdentifier
+ FROM CryptographicMessageSyntax-2009
+     {iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9)
+     smime(16) modules(0) id-mod-cms-2004-02(41)}
+
+ rc2-cbc, SMimeCaps
+ FROM CryptographicMessageSyntaxAlgorithms-2009
+     {iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9)
+     smime(16) modules(0) id-mod-cmsalg-2001-02(37)}
+
+ SMimeCaps
+ FROM PKIXAlgs-2009
+     {iso(1) identified-organization(3) dod(6) internet(1) security(5)
+     mechanisms(5) pkix(7) id-mod(0)
+     id-mod-pkix1-algorithms2008-02(56)}
+
+ SMimeCaps
+ FROM PKIX1-PSS-OAEP-Algorithms-2009
+      {iso(1) identified-organization(3) dod(6) internet(1)
+      security(5) mechanisms(5) pkix(7) id-mod(0)
+      id-mod-pkix1-rsa-pkalgs-02(54)};
+
+ SMimeAttributeSet ATTRIBUTE ::=
+     { aa-smimeCapabilities | aa-encrypKeyPref, ... }
+
+ --  id-aa is the arc with all new authenticated and unauthenticated
+ --  attributes produced by the S/MIME Working Group
+
+ id-aa OBJECT IDENTIFIER ::=
+     { iso(1) member-body(2) usa(840) rsadsi(113549) pkcs(1) pkcs-9(9)
+     smime(16) attributes(2)}
+
+ -- The S/MIME Capabilities attribute provides a method of broadcasting
+ -- the symmetric capabilities understood.  Algorithms SHOULD be ordered
+ -- by preference and grouped by type
+
+ aa-smimeCapabilities ATTRIBUTE ::=
+     { TYPE SMIMECapabilities{{SMimeCapsSet}} IDENTIFIED BY
+           smimeCapabilities }
+ smimeCapabilities OBJECT IDENTIFIER ::=
+     { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9)
+     15 }
+
+ SMimeCapsSet SMIME-CAPS ::=
+     { cap-preferBinaryInside | cap-RC2CBC |
+     PKIXAlgs-2009.SMimeCaps |
+     CryptographicMessageSyntaxAlgorithms-2009.SMimeCaps |
+     PKIX1-PSS-OAEP-Algorithms-2009.SMimeCaps, ... }
+
+ -- Encryption Key Preference provides a method of broadcasting the
+ -- preferred encryption certificate.
+
+ aa-encrypKeyPref ATTRIBUTE ::=
+     { TYPE SMIMEEncryptionKeyPreference
+         IDENTIFIED BY id-aa-encrypKeyPref }
+
+ id-aa-encrypKeyPref OBJECT IDENTIFIER ::= {id-aa 11}
+
+ SMIMEEncryptionKeyPreference ::= CHOICE {
+    issuerAndSerialNumber   [0] IssuerAndSerialNumber,
+    receipentKeyId          [1] RecipientKeyIdentifier,
+    subjectAltKeyIdentifier [2] SubjectKeyIdentifier
+ }
+
+ -- receipentKeyId is spelt incorrectly, but kept for historical
+ -- reasons.
+
+ id-smime OBJECT IDENTIFIER ::= { iso(1) member-body(2)
+    us(840) rsadsi(113549) pkcs(1) pkcs9(9) 16 }
+
+ id-cap  OBJECT IDENTIFIER ::= { id-smime 11 }
+
+ -- The preferBinaryInside indicates an ability to receive messages
+ -- with binary encoding inside the CMS wrapper
+
+ cap-preferBinaryInside SMIME-CAPS ::=
+     { -- No value -- IDENTIFIED BY id-cap-preferBinaryInside }
+
+ id-cap-preferBinaryInside  OBJECT IDENTIFIER ::= { id-cap 1 }
+
+ --  The following list OIDs to be used with S/MIME V3
+
+ -- Signature Algorithms Not Found in [RFC3370]
+ --
+ -- md2WithRSAEncryption OBJECT IDENTIFIER ::=
+ --    {iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-1(1)
+ --     2}
+ --
+ -- Other Signed Attributes
+ --
+ -- signingTime OBJECT IDENTIFIER ::=
+ --    {iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9)
+ --     5}
+ --    See [RFC5652] for a description of how to encode the attribute
+ --    value.
+
+ cap-RC2CBC SMIME-CAPS ::=
+     { TYPE SMIMECapabilitiesParametersForRC2CBC
+         IDENTIFIED BY rc2-cbc}
+
+ SMIMECapabilitiesParametersForRC2CBC ::= INTEGER (40 | 128, ...)
+ --    (RC2 Key Length (number of bits))
+
+ END
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/SelectedAttributeTypes.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/SelectedAttributeTypes.asn1
index 07bba30690..07bba30690 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/SelectedAttributeTypes.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/SelectedAttributeTypes.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/SeseAPDUs.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/SeseAPDUs.asn1
index 2917122e94..2917122e94 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/SeseAPDUs.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/SeseAPDUs.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/SpkmGssTokens.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/SpkmGssTokens.asn1
index 02205bd64c..02205bd64c 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/SpkmGssTokens.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/SpkmGssTokens.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Style-Descriptors.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Style-Descriptors.asn1
index 8f033eab6f..8f033eab6f 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Style-Descriptors.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Style-Descriptors.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Subprofiles.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Subprofiles.asn1
index bfcd0b5dbc..bfcd0b5dbc 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Subprofiles.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Subprofiles.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Temporal-Relationships.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Temporal-Relationships.asn1
index 9633995e3b..9633995e3b 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Temporal-Relationships.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Temporal-Relationships.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Text-Units.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Text-Units.asn1
index ccc64a52f5..ccc64a52f5 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Text-Units.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Text-Units.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/UpperBounds.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/UpperBounds.asn1
index c97c83a569..c97c83a569 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/UpperBounds.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/UpperBounds.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/UsefulDefinitions.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/UsefulDefinitions.asn1
index d9601bb7d0..d9601bb7d0 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/UsefulDefinitions.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/UsefulDefinitions.asn1
diff --git a/lib/asn1/test/asn1_SUITE_data/x420/Videotex-Coding-Attributes.asn b/lib/asn1/test/asn1_SUITE_data/rfcs/Videotex-Coding-Attributes.asn1
index 18e51cbc0d..18e51cbc0d 100644
--- a/lib/asn1/test/asn1_SUITE_data/x420/Videotex-Coding-Attributes.asn
+++ b/lib/asn1/test/asn1_SUITE_data/rfcs/Videotex-Coding-Attributes.asn1
diff --git a/lib/asn1/test/asn1_test_lib.erl b/lib/asn1/test/asn1_test_lib.erl
index da07cd1118..a5f46046ff 100644
--- a/lib/asn1/test/asn1_test_lib.erl
+++ b/lib/asn1/test/asn1_test_lib.erl
@@ -21,6 +21,7 @@
 
 -export([compile/3,compile_all/3,compile_erlang/3,
 	 hex_to_bin/1,
+	 match_value/2,
 	 parallel/0,
 	 roundtrip/3,roundtrip/4,roundtrip_enc/3,roundtrip_enc/4]).
 
@@ -106,6 +107,24 @@ compile_erlang(Mod, Config, Options) ->
 hex_to_bin(S) ->
     << <<(hex2num(C)):4>> || C <- S, C =/= $\s >>.
 
+%% match_value(Pattern, Value) -> ok.
+%%  Match Pattern against Value. If the Pattern contains in any
+%%  position, the corresponding position in the Value can be
+%%  anything. Generate an exception if the Pattern and Value don't
+%%  match.
+
+match_value('_', _) ->
+    ok;
+match_value([H1|T1], [H2|T2]) ->
+    match_value(H1, H2),
+    match_value(T1, T2);
+match_value(T1, T2) when tuple_size(T1) =:= tuple_size(T2) ->
+    match_value_tuple(1, T1, T2);
+match_value(Same, Same) ->
+    ok;
+match_value(V1, V2) ->
+    error({nomatch,V1,V2}).
+
 roundtrip(Mod, Type, Value) ->
     roundtrip(Mod, Type, Value, Value).
 
@@ -132,6 +151,12 @@ hex2num(C) when $0 =< C, C =< $9 -> C - $0;
 hex2num(C) when $A =< C, C =< $F -> C - $A + 10;
 hex2num(C) when $a =< C, C =< $f -> C - $a + 10.
 
+match_value_tuple(I, T1, T2) when I =< tuple_size(T1) ->
+    match_value(element(I, T1), element(I, T2)),
+    match_value_tuple(I+1, T1, T2);
+match_value_tuple(_, _, _) ->
+    ok.
+
 test_ber_indefinite(Mod, Type, Encoded, ExpectedValue) ->
     case Mod:encoding_rule() of
 	ber ->
diff --git a/lib/asn1/test/error_SUITE.erl b/lib/asn1/test/error_SUITE.erl
index 1edd60f7c8..a9893b91cc 100644
--- a/lib/asn1/test/error_SUITE.erl
+++ b/lib/asn1/test/error_SUITE.erl
@@ -19,9 +19,12 @@
 
 -module(error_SUITE).
 -export([suite/0,all/0,groups/0,
-	 already_defined/1,bitstrings/1,enumerated/1,
-	 imports/1,instance_of/1,integers/1,objects/1,
-	 parameterization/1,values/1]).
+	 already_defined/1,bitstrings/1,
+	 classes/1,constraints/1,constructed/1,enumerated/1,
+	 imports_exports/1,instance_of/1,integers/1,objects/1,
+	 object_field_extraction/1,oids/1,rel_oids/1,
+	 object_sets/1,parameterization/1,
+	 syntax/1,table_constraints/1,tags/1,values/1]).
 
 -include_lib("test_server/include/test_server.hrl").
 
@@ -34,12 +37,22 @@ groups() ->
     [{p,parallel(),
       [already_defined,
        bitstrings,
+       classes,
+       constraints,
+       constructed,
        enumerated,
-       imports,
+       imports_exports,
        instance_of,
        integers,
        objects,
+       object_field_extraction,
+       object_sets,
+       oids,
+       rel_oids,
        parameterization,
+       syntax,
+       table_constraints,
+       tags,
        values]}].
 
 parallel() ->
@@ -94,6 +107,46 @@ bitstrings(Config) ->
      ]} = run(P, Config),
     ok.
 
+classes(Config) ->
+    M = 'Classes',
+    P = {M,
+	 <<"Classes DEFINITIONS AUTOMATIC TAGS ::= BEGIN\n"
+	   "  LowerCase ::= CLASS { &id INTEGER UNIQUE }\n"
+	   "  CL ::= CLASS { &id INTEGER UNIQUE DEFAULT 42}\n"
+	   "END\n">>},
+    {error,
+     [{structured_error,{M,2},asn1ct_check,
+       {illegal_class_name,'LowerCase'}},
+      {structured_error,{M,3},asn1ct_check,
+       {unique_and_default,id}}
+     ]} = run(P, Config),
+    ok.
+
+constraints(Config) ->
+    M = 'Constraints',
+    P = {M,
+	 <<"Constraints DEFINITIONS AUTOMATIC TAGS ::= BEGIN\n"
+	   "  II-1 ::= INTEGER (holder-1.&obj)\n"
+	   "  II-2 ::= INTEGER ('1234'H<..20)\n"
+	   "  II-3 ::= INTEGER (1..<\"abc\")\n"
+	   "  II-4 ::= INTEGER (10..1)\n"
+
+	   "  HOLDER ::= CLASS {\n"
+	   "    &obj HOLDER OPTIONAL\n"
+	   "  }\n"
+
+	   "  holder-1 HOLDER ::= { &obj holder-2 }\n"
+	   "  holder-2 HOLDER ::= { }\n"
+	   "END\n">>},
+    {error,
+     [
+      {structured_error,{M,2},asn1ct_check,illegal_value},
+      {structured_error,{M,3},asn1ct_check,illegal_integer_value},
+      {structured_error,{M,4},asn1ct_check,illegal_integer_value},
+      {structured_error,{M,5},asn1ct_check,reversed_range}
+     ]} = run(P, Config),
+    ok.
+
 enumerated(Config) ->
     M = 'Enumerated',
     P = {M,
@@ -111,38 +164,77 @@ enumerated(Config) ->
 	   "  S2 ::= SEQUENCE {\n"
 	   "    e2 EnumExt DEFAULT xyz\n"
 	   "  }\n"
+
+	   "  BadEnum1 ::= ENUMERATED {a, b, c, b }\n"
+	   "  BadEnum2 ::= ENUMERATED {a(1), b(2), b(3) }\n"
+	   "  BadEnum3 ::= ENUMERATED {a(1), b(1) }\n"
+	   "  BadEnum4 ::= ENUMERATED {a, b, ..., c(0) }\n"
+	   "  BadEnum5 ::= ENUMERATED {a, b, ..., c(10), d(5) }\n"
 	   "END\n">>},
     {error,
      [
-      {structured_error,{'Enumerated',3},asn1ct_check,{undefined,d}},
-      {structured_error,{'Enumerated',5},asn1ct_check,{undefined,z}},
-      {structured_error,{'Enumerated',10},asn1ct_check,{undefined,aa}},
-      {structured_error,{'Enumerated',13},asn1ct_check,{undefined,xyz}}
+      {structured_error,{M,3},asn1ct_check,{undefined,d}},
+      {structured_error,{M,5},asn1ct_check,{undefined,z}},
+      {structured_error,{M,6},asn1ct_check,{undefined,aa}},
+      {structured_error,{M,12},asn1ct_check,{undefined,xyz}},
+      {structured_error,{M,15},asn1ct_check,
+       {enum_illegal_redefinition,b}},
+      {structured_error,{M,16},asn1ct_check,
+       {enum_illegal_redefinition,b}},
+      {structured_error,{M,17},asn1ct_check,
+       {enum_reused_value,b,1}},
+      {structured_error,{M,18},asn1ct_check,
+       {enum_reused_value,c,0}},
+      {structured_error,{M,19},asn1ct_check,
+       {enum_not_ascending,d,5,10}}
      ]
     } = run(P, Config),
     ok.
 
-imports(Config) ->
+imports_exports(Config) ->
     Ext = 'ExternalModule',
     ExtP = {Ext,
 	    <<"ExternalModule DEFINITIONS AUTOMATIC TAGS ::= BEGIN\n"
+	      "IMPORTS\n"
+	      " Int, NonExistingImport FROM ImportsFrom;\n"
+
+	      " Existing ::= INTEGER\n"
 	      "END\n">>},
-    ok = run(ExtP, Config),
+    {error,
+     [{structured_error,
+       {Ext,3},
+       asn1ct_check,
+       {undefined_import,'NonExistingImport',
+	'ImportsFrom'}}]} = run(ExtP, Config),
 
     M = 'Imports',
     P = {M,
 	 <<"Imports DEFINITIONS AUTOMATIC TAGS ::= BEGIN\n"
-	   "IMPORTS NotDefined FROM ExternalModule\n"
-	   "X FROM UndefinedModule objid\n"
-	   "Y, Z FROM UndefinedModule2;\n"
+	   "EXPORTS\n"
+	   " T, UndefinedType;\n"
+
+	   "IMPORTS\n"
+	   " NotDefined, Existing, Int, NonExistingImport\n"
+	   "   FROM ExternalModule\n"
+	   " X FROM UndefinedModule objid\n"
+	   " Y, Z FROM UndefinedModule2;\n"
+
 	   "objid OBJECT IDENTIFIER ::= {joint-iso-ccitt(2) remote-operations(4)\n"
 	   "    notation(0)}\n"
+	   "T ::= INTEGER\n"
 	   "END\n">>},
-    {error,[{structured_error,{M,2},asn1ct_check,
-	     {undefined_import,'NotDefined','ExternalModule'}},
-	    {structured_error,{M,3},asn1ct_check,{undefined_import,'X','UndefinedModule'}},
-	    {structured_error,{M,4},asn1ct_check,{undefined_import,'Y','UndefinedModule2'}},
-	    {structured_error,{M,4},asn1ct_check,{undefined_import,'Z','UndefinedModule2'}}
+    {error,[{structured_error,{M,3},asn1ct_check,
+	     {undefined_export, 'UndefinedType'}},
+	    {structured_error,{M,5},asn1ct_check,
+	     {undefined_import,'NonExistingImport',Ext}},
+	    {structured_error,{M,5},asn1ct_check,
+	     {undefined_import,'NotDefined',Ext}},
+	    {structured_error,{M,7},asn1ct_check,
+	     {undefined_import,'X','UndefinedModule'}},
+	    {structured_error,{M,8},asn1ct_check,
+	     {undefined_import,'Y','UndefinedModule2'}},
+	    {structured_error,{M,8},asn1ct_check,
+	     {undefined_import,'Z','UndefinedModule2'}}
 	   ]} = run(P, Config),
     ok.
 
@@ -170,11 +262,14 @@ integers(Config) ->
 	   "  Int1 ::= INTEGER {a(1), a(1)}\n"
 	   "  Int2 ::= INTEGER {a(1), b(2), a(3)}\n"
 	   "  Int3 ::= INTEGER {x(1), y(1)}\n"
+	   "  i0 INTEGER ::= 1\n"
+	   "  Int4 ::= INTEGER {x(i0), y(undef) }\n"
 	   "END\n">>},
     {error,
      [{structured_error,{M,2},asn1ct_check,{namelist_redefinition,a}},
       {structured_error,{M,3},asn1ct_check,{namelist_redefinition,a}},
-      {structured_error,{M,4},asn1ct_check,{value_reused,1}}
+      {structured_error,{M,4},asn1ct_check,{value_reused,1}},
+      {structured_error,{M,6},asn1ct_check,{undefined,undef}}
      ]} = run(P, Config),
     ok.
 
@@ -188,6 +283,11 @@ objects(Config) ->
 	   "  obj3 CL ::= { &Data OCTET STRING }\n"
 	   "  obj4 SMALL ::= { &code 42 }\n"
 	   "  InvalidSet CL ::= { obj1 }\n"
+	   "  obj5 CL ::= {}\n"
+	   "  ErrSet ::= PT{ {PT{inst}}}\n"
+	   "  obj6 CL ::= 7\n"
+	   "  obj7 CL ::= int\n"
+	   "  obj8 NON-CLASS ::= { &id 1 }\n"
 
 	   "  CL ::= CLASS {\n"
 	   "    &code INTEGER UNIQUE,\n"
@@ -203,6 +303,12 @@ objects(Config) ->
 	   "    &code INTEGER UNIQUE,\n"
            "    &i INTEGER\n"
            "  }\n"
+
+	   "  PT{SMALL:Small} ::= SEQUENCE { a SMALL.&code ({Small}) }\n"
+	   "  inst SMALL ::= {&code 42, &i 4711}\n"
+
+	   "  int INTEGER ::= 42\n"
+	   "  NON-CLASS ::= SEQUENCE { a BOOLEAN }\n"
 	   "END\n">>},
     {error,
      [
@@ -216,24 +322,490 @@ objects(Config) ->
       {structured_error,{M,5},asn1ct_check,
        {missing_mandatory_fields,[i],obj4}},
       {structured_error,{M,6},asn1ct_check,
-       {invalid_fields,[wrong],'InvalidSet'}}
+       {invalid_fields,[wrong],'InvalidSet'}},
+      {structured_error,{M,7},asn1ct_check,
+       {missing_mandatory_fields,
+	['Data','Set','VarTypeValue',code,enum,object,
+	 vartypevalue],obj5}},
+      {structured_error,{M,8},asn1ct_check,invalid_objectset},
+      {structured_error,{M,9},asn1ct_check,illegal_object},
+      {structured_error,{M,10},asn1ct_check,illegal_object},
+      {structured_error,{M,11},asn1ct_check,illegal_object}
+     ]
+    } = run(P, Config),
+    ok.
+
+object_field_extraction(Config) ->
+    M = 'ObjectFieldExtraction',
+    P = {M,
+	 <<"ObjectFieldExtraction DEFINITIONS AUTOMATIC TAGS ::= BEGIN\n"
+
+	   "  DataObjSet DATA-CLASS ::= {\n"
+	   "    holder-object-1.&int,\n"
+	   "    ...\n"
+	   "  }\n"
+
+	   "  DataObjSetNoExt DATA-CLASS ::= {\n"
+	   "    holder-object-1.&int\n"
+	   "  }\n"
+
+	   "  holder-object-1 HOLDER-CLASS ::= {\n"
+	   "    &int 42\n"
+	   "  }\n"
+
+	   "  HOLDER-CLASS ::= CLASS {\n"
+           "    &int INTEGER\n"
+           "  }\n"
+
+	   "  DATA-CLASS ::= CLASS {\n"
+           "    &id INTEGER\n"
+           "  }\n"
+
+	   "END\n">>},
+    {error,
+     [
+      {structured_error,{M,2},asn1ct_check,illegal_object},
+      {structured_error,{M,6},asn1ct_check,illegal_object}
+     ]
+    } = run(P, Config),
+    ok.
+
+object_sets(Config) ->
+    M = 'ObjectSets',
+    P = {M, <<"ObjectSets DEFINITIONS AUTOMATIC TAGS ::= BEGIN\n"
+	      "TEST-UNIQ ::= CLASS { &id INTEGER UNIQUE,  &test INTEGER }\n"
+	      "UniqSet TEST-UNIQ ::= { { &id 1, &test 1 } | {&id 1, &test 2} }\n"
+
+	      "DOUBLE-UNIQ ::= CLASS { &id1 INTEGER UNIQUE,"
+              "           &id INTEGER UNIQUE }\n"
+              "DoubleSet DOUBLE-UNIQ ::= { {&id1 1, &id2 2} }\n"
+	      "END\n">>},
+    {error,
+     [{structured_error,{M,3},asn1ct_check,{non_unique_object,1}},
+      {structured_error,{M,5},asn1ct_check,multiple_uniqs}
+     ]
+    } = run(P, Config),
+    ok.
+
+oids(Config) ->
+    M = 'OIDS',
+    P = {M,<<"OIDS DEFINITIONS AUTOMATIC TAGS ::= BEGIN\n"
+	    "CONTAINER ::= CLASS { &id OBJECT IDENTIFIER UNIQUE,\n"
+	    "                      &int INTEGER OPTIONAL,\n"
+	    "                      &seq SEQUENCE { a INTEGER } OPTIONAL\n"
+	    "}\n"
+
+	    "-- This is line 6.\n"
+	    "object-1 CONTAINER ::= { &id {1 2 3}, &int 42 }\n"
+	    "object-2 CONTAINER ::= { &id {1 999}, &int 0 }\n"
+	    "object-3 CONTAINER ::= { &id {1 2}, &seq { a 42 } }\n"
+	    "oid-1 OBJECT IDENTIFIER ::= object-1.&int\n"
+	    "oid-2 OBJECT IDENTIFIER ::= object-2.&id\n"
+	    "oid-3 OBJECT IDENTIFIER ::= object-3.&seq\n"
+	    "-- This is line 13.\n"
+
+	    "oid-5 OBJECT IDENTIFIER ::= { a 42, b 19 }\n"
+
+	    "oid-6 OBJECT IDENTIFIER ::= int\n"
+	    "int INTEGER ::= 42\n"
+
+	    "oid-7 OBJECT IDENTIFIER ::= seq\n"
+	    "seq SEQUENCE { x INTEGER } ::= { x 11 }\n"
+
+	    "oid-8 OBJECT IDENTIFIER ::= os\n"
+	    "os OCTET STRING ::= '1234'H\n"
+
+	    "oid-9 OBJECT IDENTIFIER ::= { 1 os }\n"
+
+	    "oid-10 OBJECT IDENTIFIER ::= { 1 invalid }\n"
+
+	    "-- This is line 23.\n"
+	    "oid-11 OBJECT IDENTIFIER ::= { 0 legal-oid }\n"
+	    "legal-oid OBJECT IDENTIFIER ::= {1 2 3}\n"
+
+	    "bad-root-1 OBJECT IDENTIFIER ::= {99}\n"
+	    "bad-root-2 OBJECT IDENTIFIER ::= {0 42}\n"
+
+	    "oid-object-ref-1 OBJECT IDENTIFIER ::= object-1\n"
+	    "oid-object-ref-2 OBJECT IDENTIFIER ::= { object-1 19 } \n"
+
+	    "oid-int OBJECT IDENTIFIER ::= 42\n"
+	    "oid-sequence OBJECT IDENTIFIER ::= {a 42, b 35}\n"
+
+	     "END\n">>},
+    {error,
+     [
+      {structured_error,{M,8},asn1ct_check,{illegal_oid,o_id}},
+      {structured_error,{M,10},asn1ct_check,{illegal_oid,o_id}},
+      {structured_error,{M,11},asn1ct_check,{illegal_oid,o_id}},
+      {structured_error,{M,12},asn1ct_check,{illegal_oid,o_id}},
+      {structured_error,{M,14},asn1ct_check,{illegal_oid,o_id}},
+      {structured_error,{M,15},asn1ct_check,{illegal_oid,o_id}},
+      {structured_error,{M,17},asn1ct_check,{illegal_oid,o_id}},
+      {structured_error,{M,19},asn1ct_check,{illegal_oid,o_id}},
+      {structured_error,{M,21},asn1ct_check,{illegal_oid,o_id}},
+      {structured_error,{M,22},asn1ct_check,{illegal_oid,o_id}},
+      {structured_error,{M,24},asn1ct_check,{illegal_oid,o_id}},
+      {structured_error,{M,26},asn1ct_check,{illegal_oid,o_id}},
+      {structured_error,{M,27},asn1ct_check,{illegal_oid,o_id}},
+      {structured_error,{M,28},asn1ct_check,{illegal_oid,o_id}},
+      {structured_error,{M,29},asn1ct_check,{illegal_oid,o_id}},
+      {structured_error,{M,30},asn1ct_check,{illegal_oid,o_id}},
+      {structured_error,{M,31},asn1ct_check,{illegal_oid,o_id}}
      ]
     } = run(P, Config),
     ok.
 
+rel_oids(Config) ->
+    M = 'REL-OIDS',
+    P = {M,<<"REL-OIDS DEFINITIONS AUTOMATIC TAGS ::= BEGIN\n"
+	     "legal-oid OBJECT IDENTIFIER ::= {1 2}\n"
+	     "legal-roid RELATIVE-OID ::= {1 2}\n"
+	     "CONTAINER ::= CLASS { &oid OBJECT IDENTIFIER OPTIONAL,\n"
+	     "                      &int INTEGER OPTIONAL,\n"
+	     "                      &seq SEQUENCE { a INTEGER } OPTIONAL\n"
+	     "}\n"
+	     "object-1 CONTAINER ::= { &oid {1 2 3},\n"
+	     "                         &int 42,\n",
+	     "                         &seq {a 42}\n"
+	     "                       }\n"
+
+	     "wrong-type-rel-oid-1 RELATIVE-OID ::= legal-oid\n"
+	     "wrong-type-rel-oid-2 RELATIVE-OID ::= object-1.&oid\n"
+	     "wrong-type-rel-oid-3 RELATIVE-OID ::= object-1.&int\n"
+	     "wrong-type-rel-oid-4 RELATIVE-OID ::= object-1.&seq\n"
+	     "wrong-type-rel-oid-5 RELATIVE-OID ::= object-1.&undef\n"
+
+	     "oid-bad-first OBJECT IDENTIFIER ::= {legal-roid 3}\n"
+	     "END\n">>},
+    {error,
+     [
+      {structured_error,{M,12},asn1ct_check,{illegal_oid,rel_oid}},
+      {structured_error,{M,13},asn1ct_check,{illegal_oid,rel_oid}},
+      {structured_error,{M,14},asn1ct_check,{illegal_oid,rel_oid}},
+      {structured_error,{M,15},asn1ct_check,{illegal_oid,rel_oid}},
+      {structured_error,{M,16},asn1ct_check,{undefined_field,undef}},
+      {structured_error,{M,17},asn1ct_check,{illegal_oid,o_id}}
+     ]
+    } = run(P, Config),
+    ok.
+
+
 parameterization(Config) ->
     M = 'Parameterization',
     P = {M,
 	 <<"Parameterization DEFINITIONS AUTOMATIC TAGS ::= BEGIN\n"
 	   "  NotUppercase{lowercase} ::= INTEGER (lowercase)\n"
+
+	   "  P{T1,T2} ::= SEQUENCE { a T1, b T2 }\n"
+	   "  S ::= P{OCTET STRING}\n"
+
+	   "  Seq ::= SEQUENCE { a INTEGER }\n"
+	   "  Sbad ::= Seq{INTEGER}\n"
+
+	   "END\n">>},
+    {error,
+     [{structured_error,{M,2},asn1ct_check,
+       {illegal_typereference,lowercase}},
+      {structured_error,{M,4},asn1ct_check,
+       param_wrong_number_of_arguments},
+      {structured_error,{M,6},asn1ct_check,
+       {param_bad_type, 'Seq'}}
+     ]
+    } = run(P, Config),
+    ok.
+
+
+constructed(Config) ->
+    M = 'Const',
+    P = {M,
+	 <<"Const DEFINITIONS AUTOMATIC TAGS ::= BEGIN\n"
+	   "  Seq1 ::= SEQUENCE {a INTEGER, b BIT STRING, a BOOLEAN}\n"
+	   "  Ch   ::= CHOICE {a INTEGER, b BIT STRING, a BOOLEAN}\n"
+	   "  Seq2 ::= SEQUENCE {COMPONENTS OF Ch}\n"
+	   "  CL   ::= CLASS { &id INTEGER UNIQUE, &Type }\n"
+	   "  Seq3 ::= SEQUENCE { id CL.&id, d CL.&foo }\n"
+
+	   "  Seq4 ::= SEQUENCE { a INTEGER, z INTEGER OPTIONAL, b Set1 }\n"
+	   "  Set1 ::= SET { c BOOLEAN, d INTEGER }\n"
+	   "  s1 Seq4 ::= {a 42, b {c TRUE, zz 4711}}\n"
+	   "  s2 Seq4 ::= {a 42, b {c TRUE, d FALSE}}\n"
+	   "  s3 Seq4 ::= {a 42, b {c TRUE}}\n"
+	   "  s4 Seq4 ::= {a 42, b {c TRUE, d 4711}, zz 4712}\n"
+	   "  s5 Seq4 ::= {a 42}\n"
+	   "  s6 Seq4 ::= {a 42, zz 4712, b {c TRUE, d 4711}}\n"
 	   "END\n">>},
     {error,
-     [{structured_error,{'Parameterization',2},asn1ct_check,
-       {illegal_typereference,lowercase}}
-      ]
-     } = run(P, Config),
+     [{structured_error,{M,2},asn1ct_check,{duplicate_identifier,a}},
+      {structured_error,{M,3},asn1ct_check,{duplicate_identifier,a}},
+      {structured_error,{M,4},asn1ct_check,{illegal_COMPONENTS_OF,'Ch'}},
+      {structured_error,{M,6},asn1ct_check,{illegal_object_field,foo}},
+
+      {structured_error,{M,9},asn1ct_check,{illegal_id,zz}},
+      {structured_error,{M,10},asn1ct_check,illegal_integer_value},
+      {structured_error,{M,11},asn1ct_check,{missing_id,d}},
+      {structured_error,{M,12},asn1ct_check,{illegal_id,zz}},
+      {structured_error,{M,13},asn1ct_check,{missing_id,b}},
+      {structured_error,{M,14},asn1ct_check,{illegal_id,zz}}
+     ]
+    } = run(P, Config),
+    ok.
+
+syntax(Config) ->
+    M = 'Syntax',
+    P = {M,
+	 <<"Syntax DEFINITIONS AUTOMATIC TAGS ::= BEGIN\n"
+	   "  obj1  CL ::= { WRONG }\n"
+	   "  obj2  CL ::= { CODE 42 AGAIN WRONG }\n"
+	   "  obj3  CL ::= { INTEGER }\n"
+	   "  obj4  CL ::= { BIT STRING }\n"
+	   "  obj5  CL ::= { , }\n"
+	   "  obj6  CL ::= { CODE , }\n"
+	   "  obj7  CL ::= { CODE \"abc\" }\n"
+	   "  obj8  CL ::= { CODE }\n"
+	   "  obj9  CL ::= { CODE 42 ENUM}\n"
+	   "  obj10 CL ::= { CODE 42 ENUM BIT STRING}\n"
+
+	   "  obj11 CL ::= { CODE 42 TYPE 13}\n"
+	   "  obj12 CL ::= { CODE 42 TYPE d}\n"
+	   "  obj13 CL ::= { CODE 42 TYPE bs-value}\n"
+
+	   "  bad-syntax-1 BAD-SYNTAX-1 ::= { BAD 42 }\n"
+
+	   "  obj14 CL ::= { CODE 42 OBJ-SET integer }\n"
+	   "  obj15 CL ::= { CODE 42 OBJ-SET { A B } }\n"
+	   "  obj16 CL ::= { CODE 42 OBJ-SET SEQUENCE { an INTEGER } }\n"
+
+	   "  obj17 CL ::= { CODE 42 OID {seqtag 42} }\n"
+	   "  obj18 CL ::= { CODE 42 OID {seqtag 42, seqtag-again 43} }\n"
+	   "  obj19 CL ::= { CODE 42 OID {one 1 two 2} }\n"
+
+	   "  BAD-SYNTAX-1 ::= CLASS {\n"
+	   "    &code INTEGER UNIQUE\n"
+	   "  } WITH SYNTAX {\n"
+	   "    BAD &bad\n"
+	   "  }\n"
+
+	   "  BAD-SYNTAX-2 ::= CLASS {\n"
+	   "    &code INTEGER UNIQUE\n"
+	   "  } WITH SYNTAX {\n"
+	   "    BAD &Bad\n"
+	   "  }\n"
+
+	   "  BAD-SYNTAX-3 ::= CLASS {\n"
+	   "    &code INTEGER UNIQUE\n"
+	   "  } WITH SYNTAX {\n"
+	   "    [ID &code]\n"
+	   "  }\n"
+
+	   "  BAD-SYNTAX-4 ::= CLASS {\n"
+	   "    &code INTEGER UNIQUE\n"
+	   "  } WITH SYNTAX {\n"
+	   "    ID\n"
+	   "  }\n"
+
+	   "  BAD-SYNTAX-5 ::= CLASS {\n"
+	   "    &code INTEGER UNIQUE,\n"
+	   "    &Type\n"
+	   "  } WITH SYNTAX {\n"
+	   "    ID\n"
+	   "  }\n"
+
+	   "  BAD-SYNTAX-6 ::= CLASS {\n"
+	   "    &code INTEGER UNIQUE\n"
+	   "  } WITH SYNTAX {\n"
+	   "    ID &code, &code\n"
+	   "  }\n"
+
+	   "  BAD-SYNTAX-7 ::= CLASS {\n"
+	   "    &code INTEGER UNIQUE,\n"
+	   "    &Type\n"
+	   "  } WITH SYNTAX {\n"
+	   "    ID &Type, &code, &code, &Type\n"
+	   "  }\n"
+
+	   "  CL ::= CLASS {\n"
+	   "    &code INTEGER UNIQUE,\n"
+	   "    &enum ENUMERATED { a, b, c} OPTIONAL,\n"
+	   "    &Type OPTIONAL,\n"
+	   "    &ObjSet CL OPTIONAL,\n"
+	   "    &oid OBJECT IDENTIFIER OPTIONAL\n"
+	   "  } WITH SYNTAX {\n"
+	   "    CODE &code [ENUM &enum] [TYPE &Type] [OBJ-SET &ObjSet]\n"
+           "    [OID &oid]\n"
+	   "  }\n"
+
+	   "  bs-value BIT STRING ::= '1011'B\n"
+
+	   "  integer INTEGER ::= 42\n"
+	   "END\n">>},
+    {error,
+     [
+      {structured_error,{M,2},asn1ct_check,
+       {syntax_nomatch,"WRONG"}},
+      {structured_error,{M,3},asn1ct_check,
+       {syntax_nomatch,"AGAIN"}},
+      {structured_error,{M,4},asn1ct_check,
+       {syntax_nomatch,"INTEGER"}},
+      {structured_error,{M,5},asn1ct_check,
+       {syntax_nomatch,"BIT STRING"}},
+      {structured_error,{M,6},asn1ct_check,
+       {syntax_nomatch,"\",\""}},
+      {structured_error,{M,7},asn1ct_check,
+       {syntax_nomatch,"\",\""}},
+      {structured_error,{M,8},asn1ct_check,
+       {syntax_nomatch,"\"abc\""}},
+      {structured_error,{M,9},asn1ct_check,
+       syntax_nomatch},
+      {structured_error,{M,10},asn1ct_check,
+       syntax_nomatch},
+      {structured_error,{M,11},asn1ct_check,
+       {syntax_nomatch,"BIT STRING"}},
+      {structured_error,{M,12},asn1ct_check,
+       {syntax_nomatch,"13"}},
+      {structured_error,{M,13},asn1ct_check,
+       {syntax_nomatch,"d"}},
+      {structured_error,{M,14},asn1ct_check,
+       {syntax_nomatch,"bs-value"}},
+      {structured_error,{M,15},asn1ct_check,
+       {syntax_undefined_field,bad}},
+      {structured_error,{M,16},asn1ct_check,
+       {syntax_nomatch,"integer"}},
+      {structured_error,{M,17},asn1ct_check,
+       {syntax_nomatch,"\"A B\""}},
+      {structured_error,{M,18},asn1ct_check,
+       {syntax_nomatch,"SEQUENCE"}},
+      {structured_error,{M,19},asn1ct_check,
+       {syntax_nomatch,"\"seqtag 42\""}},
+      {structured_error,{M,20},asn1ct_check,
+       {syntax_nomatch,"\"seqtag 42 seqtag-again 43\""}},
+      {structured_error,{M,21},asn1ct_check,
+       {syntax_nomatch,"\"one 1 two 2\""}},
+      {structured_error,{M,22},asn1ct_check,
+       {syntax_undefined_field,bad}},
+      {structured_error,{M,27},asn1ct_check,
+       {syntax_undefined_field,'Bad'}},
+      {structured_error,{M,32},asn1ct_check,
+       {syntax_mandatory_in_optional_group,code}},
+      {structured_error,{M,37},asn1ct_check,
+       {syntax_missing_mandatory_fields,[code]}},
+      {structured_error,{M,42},asn1ct_check,
+       {syntax_missing_mandatory_fields,['Type',code]}},
+      {structured_error,{M,48},asn1ct_check,
+       {syntax_duplicated_fields,[code]}},
+      {structured_error,{M,53},asn1ct_check,
+       {syntax_duplicated_fields,['Type',code]}}
+     ]
+    } = run(P, Config),
+    ok.
+
+table_constraints(Config) ->
+    M = 'TableConstraints',
+    P = {M,
+	 <<"TableConstraints DEFINITIONS AUTOMATIC TAGS ::= BEGIN\n"
+	   "  Seq-1 ::= SEQUENCE {\n"
+	   "    contentType CONTENTS.&id,\n"
+	   "    content CONTENTS.&Type({Contents}{@contentType})\n"
+	   "  }\n"
+
+	   "  Seq-2 ::= SEQUENCE {\n"
+	   "    contentType INTEGER,\n"
+	   "    content CONTENTS.&Type({Contents}{@contentType})\n"
+	   "  }\n"
+
+	   "  Int ::= INTEGER ({1})\n"
+
+	   "  Seq-3 ::= SEQUENCE {\n"
+	   "    contentType CONTENTS.&id({1})\n"
+	   "  }\n"
+
+	   "Contents CONTENTS ::= {\n"
+	   "  {OCTET STRING IDENTIFIED BY {2 1 1}}\n"
+	   "}\n"
+
+	   "CONTENTS ::= TYPE-IDENTIFIER\n"
+	   "END\n">>},
+    {error,
+     [{structured_error,
+       {M,2},asn1ct_check,
+       {missing_table_constraint,contentType}},
+      {structured_error,
+       {M,6},asn1ct_check,
+       {missing_ocft,contentType}},
+      {structured_error,
+       {M,10},asn1ct_check,
+       illegal_table_constraint},
+      {structured_error,
+       {M,11},asn1ct_check,
+       invalid_table_constraint}
+     ]} = run(P, Config),
+    ok.
+
+tags(Config) ->
+    M = 'Tags',
+    P = {M,
+	 <<"Tags DEFINITIONS AUTOMATIC TAGS ::= BEGIN\n"
+	   "SeqOpt1 ::= SEQUENCE\n"
+	   "{\n"
+	   "bool1  BOOLEAN OPTIONAL,\n"
+	   "int1  INTEGER,\n"
+	   "seq1  SeqIn OPTIONAL\n"
+	   "}\n"
+
+	   "SeqOpt1Imp ::= SEQUENCE \n"
+	   "{\n"
+	   "bool1 [1] BOOLEAN OPTIONAL,\n"
+	   "int1  INTEGER,\n"
+	   "seq1  [2] SeqIn OPTIONAL,\n"
+	   "seq2  [2] SeqIn OPTIONAL,\n"
+	   "...,\n"
+	   "int2  [3] SeqIn,\n"
+	   "int3  [3] SeqIn\n"
+	   "}\n"
+
+	   "SeqIn ::= SEQUENCE \n"
+	   "{\n"
+	   "boolIn  BOOLEAN,\n"
+	   "intIn  INTEGER\n"
+	   "}\n"
+	   "\n"
+
+
+	   "Set1 ::= SET {\n"
+	   " os [0] OCTET STRING,\n"
+	   " bool [0] BOOLEAN\n"
+	   "}\n"
+
+	   "Seq1 ::= SEQUENCE {\n"
+	   "a [0] IMPLICIT Choice OPTIONAL\n"
+	   "}\n"
+	   "Seq2 ::= SEQUENCE {\n"
+	   "a [0] IMPLICIT ANY OPTIONAL\n"
+	   "}\n"
+	   "Choice ::=\n"
+	   "CHOICE {\n"
+	   "a [0] BOOLEAN,\n"
+	   "b [1] INTEGER\n"
+	   "}\n"
+
+	   "END\n">>},
+    {error,
+     [{structured_error,
+       {M,8},asn1ct_check,
+       {duplicate_tags,[seq1,seq2]}},
+      {structured_error,
+       {M,24},asn1ct_check,
+       {duplicate_tags,[bool,os]}},
+      {structured_error,
+       {M,28},asn1ct_check,
+       {implicit_tag_before,choice}},
+      {structured_error,
+       {M,31},asn1ct_check,
+       {implicit_tag_before,open_type}}
+     ]} = run(P, Config),
     ok.
 
+
 values(Config) ->
     M = 'Values',
     P = {M,
@@ -241,6 +813,53 @@ values(Config) ->
 	   "  os1 OCTET STRING ::= \"abc\"\n"
 	   "  os2 OCTET STRING ::= 42\n"
 	   "  os3 OCTET STRING ::= { 1, 3 }\n"
+	   "  os4 OCTET STRING ::= '1234'H\n"
+	   "  Seq ::= SEQUENCE {\n"
+	   "    an OCTET STRING\n"
+	   "  }\n"
+	   "  seq Seq ::= { an int }\n"
+	   "  os5 OCTET STRING ::= holder-1.&str\n"
+	   "  os6 OCTET STRING ::= int\n"
+
+	   "  int1 INTEGER ::= \"string\"\n"
+	   "  int2 INTEGER ::= os4\n"
+	   "  int3 INTEGER ::= not-defined\n"
+	   "  int4 INTEGER ::= holder-1.&str\n"
+	   "  int5 INTEGER ::= holder-2.&obj\n"
+	   "  int6 INTEGER ::= holder-2.&undefined-field\n"
+	   "  int7 INTEGER ::= holder-2.&UndefinedField.&id\n"
+
+	   "  bs1 BIT STRING ::= 42\n"
+	   "  bs2 BIT STRING ::= {a,b}\n"
+	   "  bs3 BIT STRING {a(0),z(25)} ::= {a,b}\n"
+	   "  bs4 BIT STRING {a(0),z(25)} ::= int\n"
+	   "  bs5 BIT STRING ::= holder-2.&str\n"
+	   "  bs6 BIT STRING ::= holder-2.&obj\n"
+
+	   "  b1 BOOLEAN ::= 42\n"
+	   "  b2 BOOLEAN ::= {a,b}\n"
+
+	   "  HOLDER ::= CLASS {\n"
+	   "    &str IA5String,\n"
+	   "    &obj HOLDER OPTIONAL\n"
+	   "  }\n"
+
+	   "  holder-1 HOLDER ::= { &str \"xyz\" }\n"
+	   "  holder-2 HOLDER ::= { &str \"xyz\", &obj holder-1 }\n"
+
+	   "  ext-1 EXTERNAL ::= {identification bad:{1 2 3}, data-value '123'H}\n"
+	   "  ext-2 EXTERNAL ::= {identification syntax:{1 2 3}, data '123'H}\n"
+
+	   "  CH ::= CHOICE { a INTEGER, b BOOLEAN }\n"
+	   "  ch1 CH ::= 2344\n"
+	   "  ch2 CH ::= zz:34\n"
+
+	   "  st1 an < Seq ::= 42\n"
+	   "  st2 zz < CH ::= 42\n"
+	   "  st3 a < HOLDER ::= 42\n"
+	   "  st4 a < INTEGER ::= 42\n"
+
+	   "  int INTEGER ::= 42\n"
 	   "END\n">>},
     {error,
      [
@@ -249,7 +868,59 @@ values(Config) ->
       {structured_error,{M,3},asn1ct_check,
        illegal_octet_string_value},
       {structured_error,{M,4},asn1ct_check,
-       illegal_octet_string_value}
+       illegal_octet_string_value},
+      {structured_error,{M,9},asn1ct_check,
+       illegal_octet_string_value},
+      {structured_error,{M,10},asn1ct_check,
+       illegal_octet_string_value},
+      {structured_error,{M,11},asn1ct_check,
+       illegal_octet_string_value},
+      {structured_error,{M,12},asn1ct_check,
+       illegal_integer_value},
+      {structured_error,{M,13},asn1ct_check,
+       illegal_integer_value},
+      {structured_error,{M,14},asn1ct_check,
+       illegal_integer_value},
+      {structured_error,{M,15},asn1ct_check,
+       illegal_integer_value},
+      {structured_error,{M,16},asn1ct_check,
+       illegal_integer_value},
+      {structured_error,{M,17},asn1ct_check,
+       {undefined_field,'undefined-field'}},
+      {structured_error,{M,18},asn1ct_check,
+       {undefined_field,'UndefinedField'}},
+      {structured_error,{M,19},asn1ct_check,
+       {illegal_value, "BIT STRING"}},
+      {structured_error,{M,20},asn1ct_check,
+       {illegal_value, "BIT STRING"}},
+      {structured_error,{M,21},asn1ct_check,
+       {illegal_value, "BIT STRING"}},
+      {structured_error,{M,22},asn1ct_check,
+       {illegal_value, "BIT STRING"}},
+      {structured_error,{M,23},asn1ct_check,
+       {illegal_value, "BIT STRING"}},
+      {structured_error,{M,24},asn1ct_check,
+       {illegal_value, "BIT STRING"}},
+      {structured_error,{M,25},asn1ct_check,
+       {illegal_value, "BOOLEAN"}},
+      {structured_error,{M,26},asn1ct_check,
+       {illegal_value, "BOOLEAN"}},
+      {structured_error,{M,33},asn1ct_check,
+       illegal_external_value},
+      {structured_error,{M,34},asn1ct_check,
+       illegal_external_value},
+      {structured_error,{M,36},asn1ct_check,
+       {illegal_id, 2344}},
+      {structured_error,{M,37},asn1ct_check,
+       {illegal_id, zz}},
+      {structured_error,{M,38},asn1ct_check,
+       {illegal_choice_type, 'Seq'}},
+      {structured_error,{M,39},asn1ct_check,
+       {illegal_id, zz}},
+      {structured_error,{M,40},asn1ct_check,
+       {illegal_choice_type, 'HOLDER'}},
+      {structured_error,{M,41},asn1ct_check,
+       {illegal_choice_type, 'INTEGER'}}
      ]
     } = run(P, Config),
     ok.
@@ -258,5 +929,7 @@ values(Config) ->
 run({Mod,Spec}, Config) ->
     Base = atom_to_list(Mod) ++ ".asn1",
     File = filename:join(?config(priv_dir, Config), Base),
+    Include0 = filename:dirname(?config(data_dir, Config)),
+    Include = filename:join(filename:dirname(Include0), "asn1_SUITE_data"),
     ok = file:write_file(File, Spec),
-    asn1ct:compile(File).
+    asn1ct:compile(File, [{i, Include}]).
diff --git a/lib/asn1/test/syntax_SUITE.erl b/lib/asn1/test/syntax_SUITE.erl
new file mode 100644
index 0000000000..1a2c938fe5
--- /dev/null
+++ b/lib/asn1/test/syntax_SUITE.erl
@@ -0,0 +1,340 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2014. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+-module(syntax_SUITE).
+-export([suite/0,all/0,groups/0,
+	 assignment/1,
+	 class/1,
+	 constraints/1,
+	 exports/1,
+	 header/1,
+	 imports/1,
+	 objects/1,
+	 sequence/1,
+	 syntax/1,
+	 tokenizer/1,
+	 types/1,
+	 values/1]).
+
+-include_lib("test_server/include/test_server.hrl").
+
+suite() -> [{ct_hooks, [ts_install_cth]}].
+
+all() ->
+    [{group,p}].
+
+groups() ->
+    [{p,parallel(),
+      [assignment,
+       class,
+       constraints,
+       exports,
+       header,
+       imports,
+       objects,
+       sequence,
+       syntax,
+       tokenizer,
+       types,
+       values]}].
+
+parallel() ->
+    case erlang:system_info(schedulers) > 1 of
+        true  -> [parallel];
+        false -> []
+    end.
+
+assignment(Config) ->
+    Head = "Assignment DEFINITIONS AUTOMATIC TAGS ::=\nBEGIN\n",
+    End = "\nEND\n",
+    L0 = [{"42",3,{syntax_error,42}},
+	  {"i",4,{syntax_error,'END'}},
+	  {"i ::=",3,{syntax_error,'::='}},
+	  {"i type",4,{syntax_error,'END'}},
+	  {"i type ::=",3,{syntax_error,'::='}},
+	  {"i TYPE",4,{syntax_error,'END'}},
+	  {"i TYPE ::= ",4,{syntax_error,'END'}},
+	  {"i INTEGER ::= 42 garbage",4,{syntax_error,'END'}},
+	  {"i{T} Type",4,{syntax_error,'END'}},
+	  {"TYPE",4,{syntax_error,'END'}},
+	  {"TYPE ::=",4,{syntax_error,'END'}},
+	  {"TYPE{ ::=",3,{syntax_error,'::='}},
+	  {"TYPE{P, ::=",3,{syntax_error,'::='}},
+	  {"TYPE{P,} ::=",3,{syntax_error,'}'}},
+	  {"TYPE{Gov:} ::=",3,{syntax_error,':'}},
+	  {"TYPE{A} CL ",4,{syntax_error,'END'}},
+	  {"ObjSet CL",4,{syntax_error,'END'}}
+	 ],
+    L = [{Head++S++End,Line,E} || {S,Line,E} <- L0],
+    run(L, "Assignment", Config),
+    ok.
+
+class(Config) ->
+    Head = "Class DEFINITIONS AUTOMATIC TAGS ::=\n"
+	"BEGIN\n"
+	" CL ::= CLASS {",
+    End = "\nEND\n",
+    L0 = [{"id",3,{syntax_error,'id'}},
+	  {"&id INTEGER",4,{syntax_error,'END'}},
+	  {"&id INTEGER,",4,{syntax_error,'END'}},
+	  {"&id,",3,{syntax_error,','}},
+	  {"&id OPTIONAL",3,{syntax_error,'OPTIONAL'}},
+	  {"&id INTEGER OPTIONAL",4,{syntax_error,'END'}},
+	  {"&var &Field",4,{syntax_error,'END'}},
+	  {"&Type,",4,{syntax_error,'END'}},
+	  {"&Type OPTIONAL",4,{syntax_error,'END'}},
+	  {"&ValueSet INTEGER OPTIONAL",4,{syntax_error,'END'}},
+	  {"&ValueSet INTEGER DEFAULT",4,{syntax_error,'END'}},
+	  {"&ValueSet INTEGER DEFAULT {",4,{syntax_error,'END'}},
+	  {"&ValueSet INTEGER DEFAULT {a",4,{syntax_error,'END'}},
+	  {"&Var &Field",4,{syntax_error,'END'}}
+	 ],
+    L = [{Head++S++End,Line,E} || {S,Line,E} <- L0],
+    run(L, "Class", Config),
+    ok.
+
+constraints(Config) ->
+    Head = "Constraints DEFINITIONS AUTOMATIC TAGS ::=\n"
+	"BEGIN\n"
+	" Type ::= ",
+    End = "\nEND\n",
+    L0 = [{"INTEGER (",4,{syntax_error,'END'}},
+	  {"INTEGER (10x",3,{syntax_error,x}},
+	  {"INTEGER (10|(10y",3,{syntax_error,y}},
+	  {"INTEGER (CONSTRAINED BY {}",4,{syntax_error,'END'}},
+	  {"INTEGER (CONSTRAINED BY {INTEGER garbage",3,
+	   {syntax_error,garbage}},
+	  {"INTEGER ({ObjSet",4,{syntax_error,'END'}},
+	  {"INTEGER ({ObjSet}{",3,{syntax_error,'{'}},
+	  {"INTEGER ({ObjSet}{@",3,{syntax_error,'{'}},
+	  {"INTEGER ({ObjSet}{@x",3,{syntax_error,'{'}},
+	  {"INTEGER ({ObjSet}{@x}",4,{syntax_error,'END'}},
+	  {"INTEGER (10 !BOOLEAN",4,{syntax_error,'END'}},
+	  {"INTEGER (10 !BOOLEAN:",4,{syntax_error,'END'}},
+	  {"INTEGER (10 !BOOLEAN:FALSE",4,{syntax_error,'END'}},
+	  {"SEQUENCE {} (WITH COMPONENTS { Type })",
+	   3,{syntax_error,'Type'}},
+	  {"SEQUENCE {} (WITH COMPONENTS { x (10)",
+	   4,{syntax_error,'END'}},
+	  {"SEQUENCE {} (WITH COMPONENTS { ..., x (10)",
+	   4,{syntax_error,'END'}}
+	 ],
+    L = [{Head++S++End,Line,E} || {S,Line,E} <- L0],
+    run(L, "Constraints", Config),
+    ok.
+
+exports(Config) ->
+    Head = "Exports DEFINITIONS AUTOMATIC TAGS ::=\n"
+	"BEGIN\n"
+	" EXPORTS ",
+    End = "\nEND\n",
+    L0 = [{"Type",4,{syntax_error,'END'}}
+	 ],
+    L = [{Head++S++End,Line,E} || {S,Line,E} <- L0],
+    run(L, "Exports", Config),
+    ok.
+
+header(Config) ->
+    L = [{"lowercase",1,{syntax_error,lowercase}},
+	 {"H ",2,{syntax_error,'END-OF-FILE'}},
+	 {"H-",1,{syntax_error,'-'}},
+	 {"42",1,{syntax_error,42}},
+	 {"H definitions",1,{syntax_error,definitions}},
+	 {"H DEFINITIONS STUPID TAGS",1,{syntax_error,'STUPID'}},
+	 {"H DEFINITIONS WHATEVER",1,{syntax_error,'WHATEVER'}},
+	 {"H DEFINITIONS ::= BEGIN",2,{syntax_error,'END-OF-FILE'}},
+	 {"BOOLEAN",1,{syntax_error,'BOOLEAN'}}
+	],
+    run(L, "H", Config),
+    ok.
+
+imports(Config) ->
+    Head = "Imports DEFINITIONS AUTOMATIC TAGS ::=\n"
+	"BEGIN\n"
+	" IMPORTS ",
+    End = "\nEND\n",
+    L0 = [{"Type FROM X",4,{syntax_error,'END'}},
+	  {"Symbols TO Y",3,{syntax_error,'TO'}}
+	 ],
+    L = [{Head++S++End,Line,E} || {S,Line,E} <- L0],
+    run(L, "Imports", Config),
+    ok.
+
+objects(Config) ->
+    Head = "Objects DEFINITIONS AUTOMATIC TAGS ::=\n"
+	"BEGIN\n"
+	"  object CLASS-NAME ::= ",
+    End = "\nEND\n",
+    L0 = [{"{",4,{syntax_error,'END'}},
+	  {"{&min 1, max 10}",3,{syntax_error,max}},
+	  {"{&min 1, Max 10}",3,{syntax_error,'Max'}},
+	  {"{min 1, &max 10}",3,{syntax_error,'&max'}},
+	  {"{min 1, &Max 10}",3,{syntax_error,'&Max'}},
+	  {"{RESERVERD WORD BIT}",3,{syntax_error,'BIT'}},
+	  {"{&min 1",4,{syntax_error,'END'}}
+	 ],
+    L = [{Head++S++End,Line,E} || {S,Line,E} <- L0],
+    run(L, "Objects", Config),
+    ok.
+
+sequence(Config) ->
+    Head = "Sequence DEFINITIONS AUTOMATIC TAGS ::=\n"
+	"BEGIN\n"
+	"  Type ::= SEQUENCE {",
+    End = "\nEND\n",
+    L0 = [{"",4,{syntax_error,'END'}},
+	  {" UpperCase",3,{syntax_error,'UpperCase'}},
+	  {" a b",4,{syntax_error,'END'}},
+	  {" i INTEGER",4,{syntax_error,'END'}},
+	  {" ...",4,{syntax_error,'END'}},
+	  {" ..., [[",4,{syntax_error,'END'}},
+	  {" ..., [[ a INTEGER ]",3,{syntax_error,']'}},
+	  {" ..., [[ a INTEGER,",3,{syntax_error,','}},
+	  {" ..., [[ a INTEGER, ... ]]",3,{syntax_error,','}},
+	  {" ... !42 xxx",3,{syntax_error,'xxx'}},
+	  {" ... !42, a INTEGER,",3,{syntax_error,','}}
+	 ],
+    L = [{Head++S++End,Line,E} || {S,Line,E} <- L0],
+    run(L, "Sequence", Config),
+    ok.
+
+syntax(Config) ->
+    Head = "Syntax DEFINITIONS AUTOMATIC TAGS ::=\n"
+	"BEGIN\n"
+	" CL ::= CLASS { &id INTEGER UNIQUE } WITH SYNTAX ",
+    End = "\nEND\n",
+    L0 = [{"{}",3,{syntax_error,'}'}},
+	  {"WORD",3,{syntax_error,'WORD'}},
+	  {"{ Word }",3,{syntax_error,'Word'}},
+	  {"{ [ Word ] }",3,{syntax_error,'Word'}},
+	  {"{ [ WORD }",3,{syntax_error,'}'}},
+	  {"{ WORD;",3,{syntax_error,';'}}
+	 ],
+    L = [{Head++S++End,Line,E} || {S,Line,E} <- L0],
+    run(L, "Syntax", Config),
+    ok.
+
+tokenizer(Config) ->
+    Head = "Tokenize DEFINITIONS AUTOMATIC TAGS ::=\n"
+	"BEGIN\n",
+    End = "\nEND\n",
+    L0 = [{"'",3,eol_in_token},
+	  {"'42'B",3,{invalid_binary_number,"42"}},
+	  {"'ZZZ'H",3,{invalid_hex_number,"ZZZ"}},
+	  {"\"abc",3,missing_quote_at_eof},
+	  {"/*",3,eof_in_comment}
+	 ],
+    L = [{Head++S++End,Line,E} || {S,Line,E} <- L0],
+    run(L, "Tokenizer", Config, asn1ct_tok),
+    ok.
+
+types(Config) ->
+    Head = "Types DEFINITIONS AUTOMATIC TAGS ::=\n"
+	"BEGIN\n"
+	"  Type ::= ",
+    End = "\nEND\n",
+    L0 = [{"BIT STRING garbage",4,{syntax_error,'END'}},
+	  {"BIT STRING {",4,{syntax_error,'END'}},
+	  {"BIT STRING { a(42",3,{syntax_error,42}},
+	  {"BIT STRING { a(0)",4,{syntax_error,'END'}},
+	  {"CHOICE {",4,{syntax_error,'END'}},
+	  {"CHOICE { ..., a}",3,{syntax_error,'...'}},
+	  {"CHOICE { UpperCase",3,{syntax_error,'UpperCase'}},
+	  {"CHOICE { i INTEGER",4,{syntax_error,'END'}},
+	  {"CHOICE { ..., i INTEGER }",3,{syntax_error,'...'}},
+	  {"CHOICE { b BOOLEAN, ..., i INTEGER",
+	   4,{syntax_error,'END'}},
+	  {"CHOICE { b BOOLEAN, ..., [[ e BOOLEAN, ...]]}",
+	   3,{syntax_error,','}},
+	  {"CHOICE { b BOOLEAN, ..., i INTEGER, ..., x BIT STRING}",
+	   3,{syntax_error,','}},
+	  {"ENUMERATED {",4,{syntax_error,'END'}},
+	  {"ENUMERATED { 42 }",3,{syntax_error,42}},
+	  {"ENUMERATED { a, b",4,{syntax_error,'END'}},
+	  {"ENUMERATED { a, }",3,{syntax_error,','}},
+	  {"ENUMERATED { a, ...,\nb, ..., c }",4,{syntax_error,','}},
+	  {"INTEGER {",4,{syntax_error,'END'}},
+	  {"INTEGER { a(42)",4,{syntax_error,'END'}},
+	  {"SEQUENCE",3,{syntax_error,'SEQUENCE'}},
+	  %% More tests for SEQUENCE in sequence/1.
+	  {"SEQUENCE SIZE (1..10)",4,{syntax_error,'END'}},
+	  {"SEQUENCE (SIZE (1..10))",4,{syntax_error,'END'}},
+	  {"SET { i INTEGER",4,{syntax_error,'END'}},
+	  {"SET { ...",4,{syntax_error,'END'}},
+	  {"SET SIZE (1..10)",4,{syntax_error,'END'}},
+	  {"SET (SIZE (1..10))",4,{syntax_error,'END'}},
+	  {"SET { ... !42 xxx",3,{syntax_error,'xxx'}},
+	  {"SET { ... !42, a INTEGER,",3,{syntax_error,','}},
+	  {"[",4,{syntax_error,'END'}},
+	  {"[42",4,{syntax_error,'END'}}
+	 ],
+    L = [{Head++S++End,Line,E} || {S,Line,E} <- L0],
+    run(L, "Types", Config),
+    ok.
+
+values(Config) ->
+    Head = "Values DEFINITIONS AUTOMATIC TAGS ::=\n"
+	"BEGIN\n"
+	"  value Type ::= ",
+    End = "\nEND\n",
+    L0 = [{"",4,{syntax_error,'END'}}
+	 ],
+    L = [{Head++S++End,Line,E} || {S,Line,E} <- L0],
+    run(L, "Values", Config),
+    ok.
+
+run(List, File, Config) ->
+    run(List, File, Config, asn1ct_parser2).
+
+run(List, File0, Config, Module) ->
+    Base = File0 ++ ".asn1",
+    File = filename:join(?config(priv_dir, Config), Base),
+    case run_1(List, Base, File, Module, 0) of
+	0 -> ok;
+	Errors -> ?t:fail(Errors)
+    end.
+
+run_1([{Source,Line,Error}=Exp|T], Base, File, Module, N) ->
+    ok = file:write_file(File, Source),
+    io:format("~s", [Source]),
+    case asn1ct:compile(File) of
+	{error,[{structured_error,{Base,L},Module,E}]} ->
+	    case {L,E} of
+		{Line,Error} ->
+		    run_1(T, Base, File, Module, N);
+		{Line,OtherError} ->
+		    io:format("*** Wrong error: ~p, expected ~p ***\n",
+			      [OtherError,Error]),
+		    run_1(T, Base, File, Module, N+1);
+		{OtherLine,Error} ->
+		    io:format("*** Wrong line: ~p, expected ~p ***\n",
+			      [OtherLine,Line]),
+		    run_1(T, Base, File, Module, N+1);
+		{_,_} ->
+		    io:format("*** Wrong line: ~p, expected ~p ***",
+			      [L,Line]),
+		    io:format("*** Wrong error: ~p, expected ~p ***\n",
+			      [E,Error]),
+		    run_1(T, Base, File, Module, N+1)
+	    end;
+	Other ->
+	    io:format("~p\nGOT: ~p", [Exp,Other])
+    end;
+run_1([], _, _, _, N) ->
+    N.
diff --git a/lib/asn1/test/testChoExtension.erl b/lib/asn1/test/testChoExtension.erl
index 09e19ceebb..f36d6c1cbf 100644
--- a/lib/asn1/test/testChoExtension.erl
+++ b/lib/asn1/test/testChoExtension.erl
@@ -39,11 +39,6 @@ extension(_Rules) ->
     roundtrip('ChoExt3', {int,33}),
     roundtrip('ChoExt4', {str,<<"abc">>}),
 
-    roundtrip('ChoEmptyRoot', {bool,false}),
-    roundtrip('ChoEmptyRoot', {bool,true}),
-    roundtrip('ChoEmptyRoot', {int,0}),
-    roundtrip('ChoEmptyRoot', {int,7}),
-
     ok.
 
 
diff --git a/lib/asn1/test/testConstraints.erl b/lib/asn1/test/testConstraints.erl
index 3ccf883bd6..5d65cb8d73 100644
--- a/lib/asn1/test/testConstraints.erl
+++ b/lib/asn1/test/testConstraints.erl
@@ -231,6 +231,28 @@ int_constraints(Rules) ->
     seq_roundtrip(Rules, 'SeqOverlapping', 'SeqNonOverlapping', 19000),
     seq_roundtrip(Rules, 'SeqOverlapping', 'SeqNonOverlapping', 26900),
 
+    %%==========================================================
+    %%  Constraints from object fields.
+    %%==========================================================
+    range_error(Rules, 'IntObjectConstr', 1),
+    roundtrip('IntObjectConstr', 2),
+    roundtrip('IntObjectConstr', 3),
+    roundtrip('IntObjectConstr', 4),
+    range_error(Rules, 'IntObjectConstr', 5),
+
+
+    %%==========================================================
+    %% INTEGER constraints defined using named INTEGERs.
+    %%==========================================================
+    42 = 'Constraints':'constrainedNamedInt-1'(),
+    100 = 'Constraints':'constrainedNamedInt-2'(),
+    range_error(Rules, 'ConstrainedNamedInt', 41),
+    roundtrip('ConstrainedNamedInt', v1),
+    range_error(Rules, 'ConstrainedNamedInt', 43),
+
+    range_error(Rules, 'SeqWithNamedInt', {'SeqWithNamedInt',-100}),
+    roundtrip('SeqWithNamedInt', {'SeqWithNamedInt',v2}),
+
     ok.
 
 %% PER: Ensure that if the lower bound is Lb, Lb+16#80 is encoded
diff --git a/lib/asn1/test/testEnumExt.erl b/lib/asn1/test/testEnumExt.erl
index 878518be11..29995d6340 100644
--- a/lib/asn1/test/testEnumExt.erl
+++ b/lib/asn1/test/testEnumExt.erl
@@ -78,6 +78,9 @@ common(Erule) ->
 
     v_roundtrip(Erule, 'SeqBig', {'SeqBig',true,e40,9357}),
     v_roundtrip(Erule, 'SeqBig', {'SeqBig',true,e80,9357}),
+
+    v_roundtrip(Erule, 'EnumSkip', d),
+
     ok.
 
 roundtrip(Type, Value) ->
@@ -85,11 +88,20 @@ roundtrip(Type, Value) ->
 
 v_roundtrip(Erule, Type, Value) ->
     Encoded = roundtrip(Type, Value),
-    Encoded = asn1_test_lib:hex_to_bin(v(Erule, Value)).
-
-v(ber, {'SeqBig',true,e40,9357}) -> "300A8001 FF810141 8202248D";
-v(ber, {'SeqBig',true,e80,9357}) -> "300B8001 FF810200 81820224 8D";
-v(per, {'SeqBig',true,e40,9357}) -> "E0014002 248D";
-v(per, {'SeqBig',true,e80,9357}) -> "E0018002 248D";
-v(uper, {'SeqBig',true,e40,9357}) -> "E0280044 91A0";
-v(uper, {'SeqBig',true,e80,9357}) -> "E0300044 91A0".
+    Encoded = asn1_test_lib:hex_to_bin(v(Erule, Type, Value)).
+
+v(Erule, 'SeqBig', Value) ->
+    v_seq_big(Erule, Value);
+v(Erule, 'EnumSkip', Value) ->
+    v_enum_skip(Erule, Value).
+
+v_seq_big(ber, {'SeqBig',true,e40,9357}) -> "300A8001 FF810141 8202248D";
+v_seq_big(ber, {'SeqBig',true,e80,9357}) -> "300B8001 FF810200 81820224 8D";
+v_seq_big(per, {'SeqBig',true,e40,9357}) -> "E0014002 248D";
+v_seq_big(per, {'SeqBig',true,e80,9357}) -> "E0018002 248D";
+v_seq_big(uper, {'SeqBig',true,e40,9357}) -> "E0280044 91A0";
+v_seq_big(uper, {'SeqBig',true,e80,9357}) -> "E0300044 91A0".
+
+v_enum_skip(per, d) -> "82";
+v_enum_skip(uper, d) -> "82";
+v_enum_skip(ber, d) -> "0A0103".
diff --git a/lib/asn1/test/testExtensibilityImplied.erl b/lib/asn1/test/testExtensibilityImplied.erl
new file mode 100644
index 0000000000..8049bb6e53
--- /dev/null
+++ b/lib/asn1/test/testExtensibilityImplied.erl
@@ -0,0 +1,29 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2014. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+
+-module(testExtensibilityImplied).
+-export([main/0]).
+
+main() ->
+    M = 'ExtensibilityImplied',
+    {'Seq2',true} = M:decode('Seq2', M:encode('Seq1', {'Seq1',true,42})),
+    {'Set2',true} = M:decode('Set2', M:encode('Set1', {'Set1',true,42})),
+    {asn1_enum,_} = M:decode('Enum2', M:encode('Enum1', ext)),
+    ok.
diff --git a/lib/asn1/test/testImporting.erl b/lib/asn1/test/testImporting.erl
new file mode 100644
index 0000000000..de8beae38b
--- /dev/null
+++ b/lib/asn1/test/testImporting.erl
@@ -0,0 +1,34 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2014. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+
+-module(testImporting).
+-export([main/0]).
+
+main() ->
+    M = 'Importing',
+    roundtrip('Seq', {'Seq',5}),
+    roundtrip('OtherSeq', {'Seq',42,true}),
+    {'Seq',42,true} = M:seq(),
+    roundtrip('ObjSeq', {'ObjSeq',1,<<"XYZ">>}),
+    roundtrip('ObjSeq', {'ObjSeq',2,19}),
+    ok.
+
+roundtrip(Type, Value) ->
+    asn1_test_lib:roundtrip('Importing', Type, Value).
diff --git a/lib/asn1/test/testInfObj.erl b/lib/asn1/test/testInfObj.erl
index 37c134b1b9..3044d5cd2a 100644
--- a/lib/asn1/test/testInfObj.erl
+++ b/lib/asn1/test/testInfObj.erl
@@ -74,6 +74,12 @@ main(_Erule) ->
 	      {'ConstructedPdu',7,[]}),
     roundtrip('InfObj', 'ConstructedPdu',
 	      {'ConstructedPdu',7,[64,1,19,17,35]}),
+    {'ConstructedPdu',8,[{_,-15,35},{_,533,-70}]} =
+	enc_dec('InfObj', 'ConstructedPdu',
+		{'ConstructedPdu',8,[{'_',-15,35},{'_',533,-70}]}),
+    {'ConstructedPdu',9,[{RecTag9,-15,35},{RecTag9,533,-70}]} =
+	enc_dec('InfObj', 'ConstructedPdu',
+		{'ConstructedPdu',9,[{'_',-15,35},{'_',533,-70}]}),
 
     roundtrip('InfObj', 'ConstructedSet',
 	      {'ConstructedSet',1,{'CONSTRUCTED-DEFAULT_Type',-2001,true}}),
@@ -96,6 +102,12 @@ main(_Erule) ->
 	      {'ConstructedSet',7,[]}),
     roundtrip('InfObj', 'ConstructedSet',
 	      {'ConstructedSet',7,[64,1,19,17,35]}),
+    {'ConstructedSet',8,[{_,-15,35},{_,533,-70}]} =
+	enc_dec('InfObj', 'ConstructedSet',
+		{'ConstructedSet',8,[{'_',-15,35},{'_',533,-70}]}),
+    {'ConstructedSet',9,[{_,-15,35},{_,533,-70}]} =
+	enc_dec('InfObj', 'ConstructedSet',
+		{'ConstructedSet',9,[{'_',-15,35},{'_',533,-70}]}),
 
     roundtrip('InfObj', 'Seq2',
 	      {'Seq2',42,[true,false,false,true],
@@ -126,12 +138,37 @@ main(_Erule) ->
     test_objset('OstSeq45', [4,5]),
     test_objset('OstSeq12345', [1,2,3,4,5]),
 
+    test_objset('OstSeq12Except', [1,2]),
+    test_objset('OstSeq123Except', [1,2]),
+
     test_objset('ExOstSeq12', [1,2]),
     test_objset('ExOstSeq123', [1,2,3]),
-    %%test_objset('ExOstSeq1234', [1,2,3,4]),
+    test_objset('ExOstSeq1234', [1,2,3,4]),
     test_objset('ExOstSeq45', [4,5]),
     test_objset('ExOstSeq12345', [1,2,3,4,5]),
 
+    test_objset('ExOstSeq12Except', [1,2]),
+    test_objset('ExOstSeq123Except', [1,2]),
+
+    roundtrip('InfObj', 'ExtClassSeq', {'ExtClassSeq', 4}),
+
+    {1,2,42} = 'InfObj':'value-1'(),
+    {1,2,42,25} = 'InfObj':'value-2'(),
+    {100,101} = 'InfObj':'value-3'(),
+    {1,2,100,101} = 'InfObj':'value-4'(),
+
+    roundtrip('InfObj', 'Rdn', {'Rdn',{2,5,4,41},"abc"}),
+
+    roundtrip('InfObj', 'TiAliasSeq',
+	      {'TiAliasSeq',{'TiAliasSeq_prf',{2,1,2},'NULL'}}),
+
+    roundtrip('InfObj', 'ContentInfo',
+	      {'ContentInfo',{2,7,8,9},"string"}),
+    {2,7,8,9} = 'InfObj':'id-content-type'(),
+
+    <<2#1011:4>> = 'InfObj':'tricky-bit-string'(),
+    <<16#CAFE:16>> = 'InfObj':'tricky-octet-string'(),
+
     ok.
 
 test_objset(Type, Keys) ->
diff --git a/lib/asn1/test/testInfObjExtract.erl b/lib/asn1/test/testInfObjExtract.erl
new file mode 100644
index 0000000000..0ef967c1f6
--- /dev/null
+++ b/lib/asn1/test/testInfObjExtract.erl
@@ -0,0 +1,72 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2014. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+
+-module(testInfObjExtract).
+
+-export([main/0]).
+
+main() ->
+    roundtrip_data_object_13('DataSeq-1'),
+
+    roundtrip_data_object_1('DataSeq-2'),
+    roundtrip_data_object_1('DataSeq-3'),
+    roundtrip_data_object_1('DataSeq-4'),
+
+    roundtrip_data_object_13('DataSeq-5'),
+    roundtrip_data_object_13('DataSeq-6'),
+
+    roundtrip_data_object_1('DataSeqSingleSet-1'),
+    roundtrip_data_object_1('DataSeqSingleSet-2'),
+
+    roundtrip('ObjClassSeq-1', {'ObjClassSeq-1',1,true}),
+    roundtrip('ObjClassSeq-1', {'ObjClassSeq-1',2,true}),
+
+    roundtrip_error('ObjClassSeq-1', {'ObjClassSeq-1',0,false}),
+    roundtrip_error('ObjClassSeq-1', {'ObjClassSeq-1',3,true}),
+    roundtrip_error('ObjClassSeq-1', {'ObjClassSeq-1',4,false}),
+    roundtrip_error('ObjClassSeq-1', {'ObjClassSeq-1',5,true}),
+
+    ok.
+
+roundtrip_data_object_13(SeqType) ->
+    roundtrip(SeqType, {SeqType,1,true}),
+    roundtrip(SeqType, {SeqType,2,<<"abc">>}),
+    roundtrip(SeqType, {SeqType,3,<<42:5>>}),
+    roundtrip_error(SeqType, {SeqType,4,42}).
+
+roundtrip_data_object_1(SeqType) ->
+    roundtrip(SeqType, {SeqType,1,false}),
+    roundtrip(SeqType, {SeqType,1,true}),
+    roundtrip_error(SeqType, {SeqType,1,42}),
+    roundtrip_error(SeqType, {SeqType,2,<<"abc">>}),
+    roundtrip_error(SeqType, {SeqType,3,<<42:5>>}),
+    roundtrip_error(SeqType, {SeqType,999,42}).
+
+roundtrip(T, V) ->
+    asn1_test_lib:roundtrip('InfObjExtract', T, V).
+
+roundtrip_error(T, V) ->
+    try asn1_test_lib:roundtrip('InfObjExtract', T, V) of
+	ok ->
+	    test_server:fail()
+    catch
+	_:_ ->
+	    ok
+    end.
diff --git a/lib/asn1/test/testParamBasic.erl b/lib/asn1/test/testParamBasic.erl
index 39f7947e8d..5f6116bba4 100644
--- a/lib/asn1/test/testParamBasic.erl
+++ b/lib/asn1/test/testParamBasic.erl
@@ -46,6 +46,14 @@ main(Rules) ->
     roundtrip('AnAlgorithm', {'AnAlgorithm',1,42}),
     roundtrip('AnAlgorithm', {'AnAlgorithm',2,true}),
     roundtrip('AnAlgorithm', {'AnAlgorithm',2,false}),
+    {'AnAlgorithm',1,42} = 'ParamBasic':'alg-seq-1'(),
+    {'AnAlgorithm',2,true} = 'ParamBasic':'alg-seq-2'(),
+
+    roundtrip('Seq', {'Seq',
+		      {'Seq_c1',{2,1,1},42},
+		      {'Seq_c2',{2,1,1,1},asn1_NOVALUE}}),
+
+    {_,{2,9,9,9,7},'NULL'} = 'ParamBasic':'algid-hmacWithSHA1'(),
     ok.
 
 roundtrip(Type, Value) ->
diff --git a/lib/asn1/test/testPrim.erl b/lib/asn1/test/testPrim.erl
index e07379e634..d7893a2d58 100644
--- a/lib/asn1/test/testPrim.erl
+++ b/lib/asn1/test/testPrim.erl
@@ -98,6 +98,11 @@ enum(Rules) ->
 	ber ->
 	    ok
     end,
+
+    roundtrip('NegEnumVal', neg),
+    roundtrip('NegEnumVal', zero),
+    roundtrip('EnumVal128', val),
+
     ok.
 
 
diff --git a/lib/asn1/test/testPrimStrings.erl b/lib/asn1/test/testPrimStrings.erl
index 155d6f6ff5..43835728e8 100644
--- a/lib/asn1/test/testPrimStrings.erl
+++ b/lib/asn1/test/testPrimStrings.erl
@@ -232,7 +232,8 @@ bit_string(Rules, Opts) ->
     end.
 
 random_bits(N) ->
-    Seed = integer_to_list(erlang:phash2(erlang:now())),
+    Seed0 = {erlang:monotonic_time(),erlang:unique_integer()},
+    Seed = integer_to_list(erlang:phash2(Seed0)),
     random_bits(<<>>, N, Seed).
 
 random_bits(Bin, N, Seed) ->
diff --git a/lib/asn1/test/testRfcs.erl b/lib/asn1/test/testRfcs.erl
new file mode 100644
index 0000000000..6281d09873
--- /dev/null
+++ b/lib/asn1/test/testRfcs.erl
@@ -0,0 +1,75 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2014. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+
+-module(testRfcs).
+
+-export([compile/3,test/0]).
+
+-include_lib("test_server/include/test_server.hrl").
+
+compile(Config, Erules, Options0) ->
+    Options = [no_ok_wrapper|Options0],
+    DataDir = ?config(data_dir, Config),
+    Specs0 = filelib:wildcard("*.asn1", filename:join(DataDir, rfcs)),
+    Specs = [filename:join(rfcs, Spec) || Spec <- Specs0],
+    122 = length(Specs),
+    CaseDir = ?config(case_dir, Config),
+    asn1_test_lib:compile_all(Specs, Config, [Erules,{i,CaseDir}|Options]).
+
+test() ->
+    {1,3,6,1,5,5,7,48,1,2} =
+	IdPkixOcspNonce =
+	'OCSP-2009':'id-pkix-ocsp-nonce'(),
+    roundtrip('OCSP-2009', 'OCSPRequest',
+	      {'OCSPRequest',
+	       {'TBSRequest',
+		0,
+		{rfc822Name,"name string"},
+		[{'Request',
+		  {'CertID',{'_',{2,9,3,4,5},asn1_NOVALUE},
+		   <<"POTATOHASH">>,<<"HASHBROWN">>,42},
+		  [{'_',IdPkixOcspNonce,true,<<34,159,16,57,199>>}]}],
+		asn1_NOVALUE},
+	       asn1_NOVALUE}),
+    otp_7759(),
+    ok.
+
+roundtrip(Module, Type, Value0) ->
+    Enc = Module:encode(Type, Value0),
+    Value1 = Module:decode(Type, Enc),
+    asn1_test_lib:match_value(Value0, Value1),
+    ok.
+
+otp_7759() ->
+    %% The release note for asn-1.6.6 says:
+    %%   Decode of an open_type when the value was empty tagged
+    %%   type encoded with indefinite length failed.
+    Mod = 'OLD-PKCS7',
+    Encoded = encoded_msg(),
+    ContentInfo = Mod:decode('ContentInfo', Encoded),
+    io:format("~p\n", [ContentInfo]),
+    {'ContentInfo',_Id,PKCS7_content} = ContentInfo,
+    X = Mod:decode('SignedData', PKCS7_content),
+    io:format("~p\n", [X]),
+    io:nl(),
+    ok.
+
+encoded_msg() ->
+    <<48,128,6,9,42,134,72,134,247,13,1,7,2,160,128,48,128,2,1,1,49,11,48,9,6,5,43,14,3,2,26,5,0,48,128,6,9,42,134,72,134,247,13,1,7,1,160,128,36,128,0,0,0,0,0,0,  49,130,1,192,48,130,1,188,2,1,1,48,50,48,38,49,17,48,15,6,3,85,4,3,12,8,65,100,109,105,110,67,65,49,49,17,48,15,6,3,85,4,10,12,8,69,82,73,67,83,83,79,78,2,8,15,151,245,186,21,23,240,96,48,9,6,5,43,14,3,2,26,5,0,160,129,229,48,17,6,10,96,134,72,1,134,248,69,1,9,2,49,3,19,1,51,48,17,6,10,96,134,72,1,134,248,69,1,9,3,49,3,19,1,51,48,24,6,9,42,134,72,134,247,13,1,9,3,49,11,6,9,42,134,72,134,247,13,1,7,1,48,28,6,9,42,134,72,134,247,13,1,9,5,49,15,23,13,48,56,49,50,49,48,48,57,53,52,50,51,90,48,28,6,10,96,134,72,1,134,248,69,1,9,7,49,14,19,12,49,53,50,56,49,52,50,52,48,57,53,53,48,32,6,10,96,134,72,1,134,248,69,1,9,5,49,18,4,16,165,115,177,71,78,88,239,113,78,56,98,98,18,202,217,235,48,32,6,10,96,134,72,1,134,248,69,1,9,6,49,18,4,16,227,174,230,251,43,153,252,65,11,93,231,83,34,18,55,46,48,35,6,9,42,134,72,134,247,13,1,9,4,49,22,4,20,218,57,163,238,94,107,75,13,50,85,191,239,149,96,24,144,175,216,7,9,48,13,6,9,42,134,72,134,247,13,1,1,1,5,0,4,129,128,106,233,116,125,140,51,133,173,63,41,54,138,214,211,89,215,169,125,98,77,16,222,216,240,211,79,125,111,87,186,73,63,253,204,107,102,177,63,174,197,224,212,231,172,149,246,33,68,223,67,102,93,64,152,152,5,216,102,247,134,36,197,150,236,57,77,56,138,95,71,204,31,23,149,241,213,78,172,165,249,100,187,12,45,19,57,67,120,54,63,15,239,41,217,127,61,254,60,201,104,68,3,135,214,206,93,253,255,192,94,56,107,68,210,57,61,41,249,47,156,130,244,52,12,163,216,236,69,0,0,0,0,0,0>>.
diff --git a/lib/asn1/test/testSelectionTypes.erl b/lib/asn1/test/testSelectionTypes.erl
index 6d060321da..7d273fe656 100644
--- a/lib/asn1/test/testSelectionTypes.erl
+++ b/lib/asn1/test/testSelectionTypes.erl
@@ -23,10 +23,34 @@
 -include_lib("test_server/include/test_server.hrl").
 
 test() ->
-    Val = ["PrintableString","PrintableString","PrintableString"],
     ["Es"] = Val2 = ['SelectionType':einsteinium()],
-    roundtrip('MendeleyevTable', Val),
+    roundtrip('MendeleyevTable', ["fox","tree","cat","stone"]),
     roundtrip('MendeleyevTable', Val2),
+    roundtrip('MendeleyevSet', [42,57,93,101]),
+
+    M = 'SelectionType',
+    true = M:boolv(),
+    4 = M:intv(),
+    <<2#1001:4>> = M:bsv(),
+    <<16#3130:16>> = M:osv(),
+    'NULL' = M:nullv(),
+    {2,1,1} = M:oiv(),
+    "ObjectDesc" = M:odv(),
+    "utf8" = M:utfv(),
+    {5,32767,256} = M:rov(),
+    "089" = M:numsv(),
+    "telet" = M:teletv(),
+    "t61" = M:t61v(),
+    "video" = M:videov(),
+    "ia5" = M:ia5v(),
+    "9805281429Z" = M:utctimev(),
+    "19980528142905.1" = M:gTime(),
+    "graphic" = M:gsv(),
+    "visible" = M:vsv(),
+    "general" = M:gStringv(),
+    "Universal" = M:univv(),
+    "bmp" = M:bmov(),
+
     ok.
 
 roundtrip(T, V) ->
diff --git a/lib/asn1/test/testUniqueObjectSets.erl b/lib/asn1/test/testUniqueObjectSets.erl
new file mode 100644
index 0000000000..1ef61a885a
--- /dev/null
+++ b/lib/asn1/test/testUniqueObjectSets.erl
@@ -0,0 +1,175 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2014. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+
+-module(testUniqueObjectSets).
+-export([main/3]).
+
+%% Run-time function called by the generated code.
+seq_roundtrip(I, D0) ->
+    M = 'UniqueObjectSets',
+    try
+	{ok,Enc} = M:encode('Seq', {'Seq',I,D0}),
+	{ok,{'Seq',I,D}} = M:decode('Seq', Enc),
+	D
+    catch C:E ->
+	    Stk = erlang:get_stacktrace(),
+	    io:format("FAILED: ~p ~p\n", [I,D0]),
+	    erlang:raise(C, E, Stk)
+    end.
+
+types() ->
+    [{"CHOICE { a INTEGER, b BIT STRING }", {b,<<42:3>>}},
+     {"INTEGER",42},
+     {"SEQUENCE {a OCTET STRING}",{'_',<<"abc">>}},
+     {"SEQUENCE {b BOOLEAN, ...}",{'_',true}},
+     {"SEQUENCE {b BOOLEAN, ..., s IA5String, ..., e ENUMERATED { x, y, z}}",
+      {'_',false,"string",y}},
+     {"SET {a BIT STRING}",{'_',<<1:17>>}},
+     {"SEQUENCE OF INTEGER",[-19,0,555,777]},
+     {"SET OF BOOLEAN",[true,false,true]},
+     {"SEQUENCE OF SEQUENCE {x INTEGER (0..7)}",[{'_',7},{'_',0}]},
+     {"SET OF SEQUENCE {x INTEGER (0..7)}",[{'_',7},{'_',0}]}
+    ].
+
+main(CaseDir, Rule, Opts) ->
+    D0 = types(),
+    {D1,_} = lists:mapfoldl(fun({T,S}, I) ->
+				    {{I,T,S},I+1}
+			    end, 1, D0),
+    Types = [gen_types(I, Type) || {I,Type,_} <- D1],
+    Set = [gen_set_items(I, T) || {I,T,_} <- D1],
+    Objs = [gen_obj(I) || {I,_,_} <- D1],
+    DupObjs = [gen_dup_obj(I, T) || {I,T,_} <- D1],
+    DupObjRefs0 = [gen_dup_obj_refs(I) || {I,_,_} <- D1],
+    DupObjRefs = string:join(DupObjRefs0, " |\n"),
+    Asn1Spec = 'UniqueObjectSets',
+    A = ["UniqueObjectSets DEFINITIONS AUTOMATIC TAGS ::=\n",
+	 "BEGIN\n\n",
+	 "TEST-UNIQUE ::= CLASS {\n"
+	 " &id   INTEGER UNIQUE,\n"
+	 " &Type OPTIONAL\n"
+	 "}\n"
+	 "WITH SYNTAX {IDENTIFIED BY &id [TYPE &Type]}\n",
+	 $\n,
+	 "DUP-CONTAINER ::= CLASS {\n"
+	 " &id   INTEGER UNIQUE,\n"
+	 " &data TEST-UNIQUE\n"
+	 "} WITH SYNTAX {\n"
+	 " ID &id, &data\n"
+	 "}\n",
+	 $\n,
+	 Types,$\n,
+	 "UniqSet TEST-UNIQUE ::= {\n",
+	 Set,
+	 " DupSet-1 |\n",
+	 " DupSet-2, ...\n",
+	 "}\n\n",
+	 Objs,$\n,
+	 DupObjs,$\n,
+	 "DupSet-1 TEST-UNIQUE ::= {\n",
+	 DupObjRefs,$\n,
+	 "}\n\n",
+	 "DupSet-2 TEST-UNIQUE ::= {\n",
+	 DupObjRefs,",...\n",
+	 "}\n\n",
+	 "Seq ::= SEQUENCE {\n"
+	 "  id TEST-UNIQUE.&id ({UniqSet}),\n"
+	 "  type TEST-UNIQUE.&Type ({UniqSet}{@id})\n"
+	 "}\n"
+	 "END\n"],
+    Asn1File = filename:join(CaseDir, atom_to_list(Asn1Spec)++".asn1"),
+    ok = file:write_file(Asn1File, A),
+
+    TestModule = 'unique_object_sets',
+    Test0 = [gen_test(I, Data) || {I,_,Data} <- D1],
+    Test = ["-module(",atom_to_list(TestModule),").\n"
+	    "-export([main/1]).\n"
+	    "\n"
+	    "main(SeqRoundtrip) ->\n",
+	    "  ",atom_to_list(Rule)," = '",atom_to_list(Asn1Spec),
+	    "':encoding_rule(),\n",
+	    Test0,
+	    "  ok.\n"
+	    ],
+    ErlFile = filename:join(CaseDir, atom_to_list(TestModule)++".erl"),
+    ok = file:write_file(ErlFile, Test),
+
+    io:format("~s\n~s\n", [Asn1File,ErlFile]),
+    case Rule of
+	per ->
+	    io:put_chars([A,$\n,Test,$\n]);
+	_ ->
+	    ok
+    end,
+
+    ok = asn1ct:compile(Asn1File, [Rule,{outdir,CaseDir}|Opts]),
+    {ok,TestModule} = c:c(ErlFile, [{outdir,CaseDir}]),
+    TestModule:main(fun seq_roundtrip/2),
+    ok.
+
+gen_types(I, Type) ->
+    io_lib:format("AType~p ::= ~s\n", [I,Type]).
+
+gen_set_items(I, T) ->
+    io_lib:format(" {IDENTIFIED BY ~p TYPE AType~p} |\n"
+		  " {IDENTIFIED BY ~p TYPE AType~p} |\n"
+		  " {IDENTIFIED BY ~p TYPE ~s} |\n"
+		  " obj-~p |\n\n",
+		  [I,I,I,I,I,T,I]).
+
+gen_obj(I) ->
+    io_lib:format("obj-~p TEST-UNIQUE ::= {IDENTIFIED BY ~p TYPE AType~p}\n",
+		  [I,I,I]).
+
+gen_dup_obj(I, T) ->
+    io_lib:format("dup-obj-~p DUP-CONTAINER ::= "
+		  "{ID ~p, {IDENTIFIED BY ~p TYPE ~s}}\n",
+		  [I,I,I+1000,T]).
+
+gen_dup_obj_refs(I) ->
+    io_lib:format("dup-obj-~p.&data", [I]).
+
+gen_test(I, Data) ->
+    io_lib:format("  ~s = SeqRoundtrip(~p, ~p),\n",
+		  [match_term(Data),I,Data]).
+
+match_term('_') ->
+    "_";
+match_term([H|T]=L) ->
+    case is_intlist(L) of
+	true ->
+	    io_lib:format("~p", [L]);
+	false ->
+	    ["[",match_term(H),"|",match_term(T),"]"]
+    end;
+match_term(Tuple) when is_tuple(Tuple) ->
+    ["{",match_term_tuple(Tuple, 1),"}"];
+match_term(Other) ->
+    io_lib:format("~p", [Other]).
+
+match_term_tuple(T, I) when I =< tuple_size(T) ->
+    [match_term(element(I, T)),
+     if I < tuple_size(T) -> ",";
+	true -> "" end|match_term_tuple(T, I+1)];
+match_term_tuple(_, _) ->
+    [].
+
+is_intlist(L) ->
+    lists:all(fun is_integer/1, L).
diff --git a/lib/asn1/test/testValueTest.erl b/lib/asn1/test/testValueTest.erl
new file mode 100644
index 0000000000..8a8e973621
--- /dev/null
+++ b/lib/asn1/test/testValueTest.erl
@@ -0,0 +1,114 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2014. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+-module(testValueTest).
+
+-export([main/0]).
+
+main() ->
+    M = 'ValueTest',
+
+    %% Basic types
+    12 = M:'vANY'(),
+    true = M:'vBOOLEAN'(),
+    12 = M:'vINTEGER'(),
+    0 = M:'vINTEGERNNL'(),
+    button1 = M:'vENUMERATED'(),
+    [zero,two] = M:'vBS'(),
+    'NULL' = M:'vNULL'(),
+    <<16#31,16#32,16#33>> = M:'vOS'(),
+
+    %% OID
+    {2,1,1} = M:'vOD'(),
+    {1,2} = M:'integer-first'(),
+    {2,4,5} = M:'rel-oid-1'(),
+    {0,2,4,5} = M:'include-roid'(),
+    {1,2,1} = M:'include-oid'(),
+    {1,2,1,2,4,5,42} = M:'include-all'(),
+
+    %% Character strings
+    "01234567" = M:'numericstring'(),
+    "PrintableString" = M:'printablestring'(),
+    "VisibleString" = M:'visiblestring'(),
+    [0,13] = M:'cr'(),
+    ["First line",[0,13],"Second line"] = M:'ia5string1'(),
+    [[5,5],[4,4],[6,6]] = M:'ia5string2'(),
+    "TeletexString" = M:'teletexstring'(),
+    "VideotexString" = M:'videotexstring'(),
+    "97100211-0500" = M:'utctime'(),
+    "19971002103130.5" = M:'generalizedtime'(),
+    "ObjectDescriptor" = M:'objectdescriptor'(),
+    "GraphicString" = M:'graphicstring'(),
+    "GeneralString" = M:'generalstring'(),
+    "BMPString" = M:'bmpstring1'(),
+    [0,0,0,65] = M:'latinCapitalLetterA'(),
+    [0,0,3,145] = M:'greekCapitalLetterSigma'(),
+    ["This is a capital A: ",
+     [0,0,0,65],
+     ", and a capital sigma: ",
+     [0,0,3,145],
+     "; try and spot the difference!"] = M:'my-universalstring'(),
+
+    %% Integers
+    42 = M:someInteger(),
+    42 = M:otherInteger(),
+    {'IntegerSeq',42} = M:integerSeq1(),
+
+    %% Value from object
+    2 = M:'int-from-object-1'(),
+    4 = M:'int-from-object-2'(),
+    roundtrip_error('II', 1),
+    roundtrip('II', 2),
+    roundtrip('II', 3),
+    roundtrip('II', 4),
+    roundtrip_error('II', 5),
+
+    %% Recursive value definitions.
+    {'OctetStringSeq',<<16#40,16#41,16#42>>} = M:octetStringSeq1(),
+    <<16#40,16#41,16#42>> = M:otherOctetString(),
+    <<16#40,16#41,16#42>> = M:someOctetString(),
+    {'OctetStringSeq',<<16#40,16#41,16#42>>} = M:octetStringSeq2(),
+    {'OctetStringSeq',<<16#40,16#41,16#FF>>} = M:octetStringSeq3(),
+    <<16#40,16#41,16#FF>> = M:'os-1'(),
+    <<16#40,16#41,16#FF>> = M:'os-2'(),
+
+    %% Recursive BIT STRING definitions.
+    {'BsSeq',<<2#101101:6>>,[c]} = M:bsSeq1(),
+    {'BsSeq',<<2#101101:6>>,[c]} = M:bsSeq2(),
+    {'BsSeq',<<2#101:3>>,[a,c]} = M:bsSeq3(),
+    <<2#101101:6>> = M:someBitString(),
+    <<2#101101:6>> = M:otherBitString(),
+    <<2#101:3>> = M:bsFromObject(),
+    <<2#101:3>> = M:bsFromObjectInd(),
+    [c] = M:someNamedBs(),
+    [c] = M:someOtherNamedBs(),
+
+    ok.
+
+
+roundtrip(T, V) ->
+    asn1_test_lib:roundtrip('ValueTest', T, V).
+
+roundtrip_error(T, V) ->
+    try asn1_test_lib:roundtrip('ValueTest', T, V) of
+	ok ->
+	    test_server:fail()
+    catch _:_ ->
+	    ok
+    end.
diff --git a/lib/asn1/test/testX420.erl b/lib/asn1/test/testX420.erl
deleted file mode 100644
index 4ddc55dc16..0000000000
--- a/lib/asn1/test/testX420.erl
+++ /dev/null
@@ -1,93 +0,0 @@
-%%
-%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 2008-2013. All Rights Reserved.
-%%
-%% The contents of this file are subject to the Erlang Public License,
-%% Version 1.1, (the "License"); you may not use this file except in
-%% compliance with the License. You should have received a copy of the
-%% Erlang Public License along with this software. If not, it can be
-%% retrieved online at http://www.erlang.org/.
-%%
-%% Software distributed under the License is distributed on an "AS IS"
-%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-%% the License for the specific language governing rights and limitations
-%% under the License.
-%%
-%% %CopyrightEnd%
-%%
-%%
-%%-------------------------------------------------------------------
-
--module(testX420).
-
--export([compile/3, ticket7759/2]).
-
--include_lib("test_server/include/test_server.hrl").
-
-
-compile(Erule, Options, Config) ->
-    Specs0 = specs(),
-    99 = length(Specs0),
-    CaseDir = ?config(case_dir, Config),
-    Specs = [filename:join(x420, Spec) || Spec <- Specs0],
-    asn1_test_lib:compile_all(Specs, Config, [Erule,{i,CaseDir}|Options]).
-
-specs() ->
-    ["ACSE-1", "AuthenticationFramework", "BasicAccessControl",
-     "CertificateExtensions", "Character-Coding-Attributes",
-     "Character-Presentation-Attributes", "Character-Profile-Attributes",
-     "Colour-Attributes", "DOR-definition", "DSAOperationalAttributeTypes",
-     "Default-Value-Lists", "DirectoryAbstractService",
-     "DirectoryAccessProtocol", "DirectoryInformationShadowProtocol",
-     "DirectoryOperationalBindingManagementProtocol",
-     "DirectoryOperationalBindingTypes", "DirectoryProtectionMappings",
-     "DirectoryShadowAbstractService", "DirectorySystemProtocol",
-     "DistributedOperations", "Document-Profile-Descriptor",
-     "EnhancedSecurity", "External-References", "GULSProtectionMappings",
-     "GenericProtectingTransferSyntax", "Geo-Gr-Coding-Attributes",
-     "Geo-Gr-Presentation-Attributes", "Geo-Gr-Profile-Attributes",
-     "GulsSecurityExchanges", "GulsSecurityTransformations",
-     "HierarchicalOperationalBindings", "IPMSAbstractService",
-     "IPMSAutoActionTypes", "IPMSExtendedBodyPartTypes",
-     "IPMSExtendedBodyPartTypes2", "IPMSExtendedVoiceBodyPartType",
-     "IPMSFileTransferBodyPartType", "IPMSForwardedContentBodyPartType",
-     "IPMSForwardedReportBodyPartType", "IPMSFunctionalObjects",
-     "IPMSHeadingExtensions", "IPMSInformationObjects",
-     "IPMSMessageStoreAttributes", "IPMSObjectIdentifiers",
-     "IPMSObjectIdentifiers2", "IPMSSecurityExtensions", "IPMSUpperBounds",
-     "ISO-STANDARD-9541-FONT-ATTRIBUTE-SET", "ISO8571-FTAM", "ISO9541-SN",
-     "Identifiers-and-Expressions", "InformationFramework",
-     "Interchange-Data-Elements", "Layout-Descriptors", "Link-Descriptors",
-     "Location-Expressions", "Logical-Descriptors", "MHSObjectIdentifiers",
-     "MHSProtocolObjectIdentifiers", "MSAbstractService",
-     "MSAccessProtocol", "MSGeneralAttributeTypes",
-     "MSGeneralAutoActionTypes", "MSMatchingRules", "MSObjectIdentifiers",
-     "MSUpperBounds", "MTAAbstractService", "MTSAbstractService",
-     "MTSAbstractService88", "MTSAccessProtocol", "MTSObjectIdentifiers",
-     "MTSUpperBounds", "Notation", "ObjectIdentifiers",
-     "OperationalBindingManagement", "PKCS7", "PKCS7BodyPartType",
-     "Protected-Part-Descriptors", "ProtocolObjectIdentifiers",
-     "Raster-Gr-Coding-Attributes", "Raster-Gr-Presentation-Attributes",
-     "Raster-Gr-Profile-Attributes", "Reliable-Transfer-APDU",
-     "Remote-Operations-Abstract-Syntaxes",
-     "Remote-Operations-Generic-ROS-PDUs",
-     "Remote-Operations-Information-Objects-extensions",
-     "Remote-Operations-Information-Objects",
-     "Remote-Operations-Realizations",
-     "Remote-Operations-Useful-Definitions", "SelectedAttributeTypes",
-     "SeseAPDUs", "SpkmGssTokens", "Style-Descriptors", "Subprofiles",
-     "Temporal-Relationships", "Text-Units", "UpperBounds",
-     "UsefulDefinitions", "Videotex-Coding-Attributes"].
-
-ticket7759(_Erule,_Config) ->
-    Encoded = encoded_msg(),
-    io:format("Testing ticket7759 ...~n",[]),
-    {ok, ContentInfo} = 'PKCS7':decode('ContentInfo',Encoded),
-    {'ContentInfo',_Id,PKCS7_content} = ContentInfo,
-    {ok,_} = 'PKCS7':decode('SignedData',PKCS7_content),
-    ok.
-
-
-encoded_msg() ->
-    <<48,128,6,9,42,134,72,134,247,13,1,7,2,160,128,48,128,2,1,1,49,11,48,9,6,5,43,14,3,2,26,5,0,48,128,6,9,42,134,72,134,247,13,1,7,1,160,128,36,128,0,0,0,0,0,0,  49,130,1,192,48,130,1,188,2,1,1,48,50,48,38,49,17,48,15,6,3,85,4,3,12,8,65,100,109,105,110,67,65,49,49,17,48,15,6,3,85,4,10,12,8,69,82,73,67,83,83,79,78,2,8,15,151,245,186,21,23,240,96,48,9,6,5,43,14,3,2,26,5,0,160,129,229,48,17,6,10,96,134,72,1,134,248,69,1,9,2,49,3,19,1,51,48,17,6,10,96,134,72,1,134,248,69,1,9,3,49,3,19,1,51,48,24,6,9,42,134,72,134,247,13,1,9,3,49,11,6,9,42,134,72,134,247,13,1,7,1,48,28,6,9,42,134,72,134,247,13,1,9,5,49,15,23,13,48,56,49,50,49,48,48,57,53,52,50,51,90,48,28,6,10,96,134,72,1,134,248,69,1,9,7,49,14,19,12,49,53,50,56,49,52,50,52,48,57,53,53,48,32,6,10,96,134,72,1,134,248,69,1,9,5,49,18,4,16,165,115,177,71,78,88,239,113,78,56,98,98,18,202,217,235,48,32,6,10,96,134,72,1,134,248,69,1,9,6,49,18,4,16,227,174,230,251,43,153,252,65,11,93,231,83,34,18,55,46,48,35,6,9,42,134,72,134,247,13,1,9,4,49,22,4,20,218,57,163,238,94,107,75,13,50,85,191,239,149,96,24,144,175,216,7,9,48,13,6,9,42,134,72,134,247,13,1,1,1,5,0,4,129,128,106,233,116,125,140,51,133,173,63,41,54,138,214,211,89,215,169,125,98,77,16,222,216,240,211,79,125,111,87,186,73,63,253,204,107,102,177,63,174,197,224,212,231,172,149,246,33,68,223,67,102,93,64,152,152,5,216,102,247,134,36,197,150,236,57,77,56,138,95,71,204,31,23,149,241,213,78,172,165,249,100,187,12,45,19,57,67,120,54,63,15,239,41,217,127,61,254,60,201,104,68,3,135,214,206,93,253,255,192,94,56,107,68,210,57,61,41,249,47,156,130,244,52,12,163,216,236,69,0,0,0,0,0,0>>.
diff --git a/lib/asn1/test/test_compile_options.erl b/lib/asn1/test/test_compile_options.erl
index 7f358e863c..4b6357a395 100644
--- a/lib/asn1/test/test_compile_options.erl
+++ b/lib/asn1/test/test_compile_options.erl
@@ -24,7 +24,7 @@
 
 
 -export([wrong_path/1,comp/2,path/1,ticket_6143/1,noobj/1,
-	 record_name_prefix/1,verbose/1,warnings_as_errors/1]).
+	 record_name_prefix/1,verbose/1]).
 
 %% OTP-5689
 wrong_path(Config) ->
@@ -132,43 +132,6 @@ verbose(Config) when is_list(Config) ->
     ?line [] = test_server:capture_get(),
     ok.
 
-warnings_as_errors(Config) when is_list(Config) ->
-    PrivDir = ?config(priv_dir,Config),
-    Asn1File = filename:join([PrivDir,"WERROR.asn1"]),
-    OutFile = filename:join([PrivDir,"WERROR.erl"]),
-    Opts = [{outdir,PrivDir},noobj,verbose],
-
-    %% Generate WERR.asn to emit warning
-    %% Warning: Wrong format of type/value
-    %%     false/{'Externalvaluereference',_,'WERR',noInvokeId}
-    Warn = <<"WERROR DEFINITIONS IMPLICIT TAGS ::=\n"
-	     "\n"
-	     "BEGIN\n"
-	     "\n"
-	     "InvokeId ::= CHOICE\n"
-	     "{\n"
-	     "    present INTEGER,\n"
-	     "    absent NULL\n"
-	     "}\n"
-	     "\n"
-	     "noInvokeId InvokeId ::= absent:NULL\n"
-	     "\n"
-	     "NoInvokeId InvokeId ::= {noInvokeId}\n"
-	     "\n"
-	     "END -- end of useful definitions.\n">>,
-    ?line ok = file:write_file(Asn1File, Warn),
-
-    %% Test warnings_as_errors compile
-    ?line false = filelib:is_regular(OutFile),
-    ?line {error, _} = asn1ct:compile(Asn1File, [warnings_as_errors|Opts]),
-    ?line false = filelib:is_regular(OutFile),
-
-    %% Test normal compile
-    ?line ok = asn1ct:compile(Asn1File, Opts),
-    ?line true = filelib:is_regular(OutFile),
-    ?line ok = file:delete(OutFile),
-    ok.
-
 outfiles_check(OutDir) ->
     outfiles_check(OutDir,outfiles1()).
 
diff --git a/lib/asn1/vsn.mk b/lib/asn1/vsn.mk
index d1c364c34a..d4c46863a3 100644
--- a/lib/asn1/vsn.mk
+++ b/lib/asn1/vsn.mk
@@ -1,2 +1 @@
-#next version number to use is 2.0
-ASN1_VSN = 3.0.4
+ASN1_VSN = 4.0
diff --git a/lib/common_test/doc/src/ct_master_chapter.xml b/lib/common_test/doc/src/ct_master_chapter.xml
index 37a0805055..adfe79e41a 100644
--- a/lib/common_test/doc/src/ct_master_chapter.xml
+++ b/lib/common_test/doc/src/ct_master_chapter.xml
@@ -198,7 +198,7 @@
   <section>
     <title>Automatic startup of test target nodes</title>
     <marker id="ct_slave"></marker>
-    <p>Is is possible to automatically start, and perform initial actions, on
+    <p>It is possible to automatically start, and perform initial actions, on
       test target nodes by using the test specification term <c>init</c>.</p>
     <p>Currently, two sub-terms are supported, <c>node_start</c> and <c>eval</c>.</p>
     <p>Example:</p>
diff --git a/lib/common_test/doc/src/install_chapter.xml b/lib/common_test/doc/src/install_chapter.xml
index 7f8c606324..31125b945c 100644
--- a/lib/common_test/doc/src/install_chapter.xml
+++ b/lib/common_test/doc/src/install_chapter.xml
@@ -34,7 +34,7 @@
     <title>General information</title>
 
     <p>The two main interfaces for running tests with Common Test
-      are an executable program named ct_run and an
+      are an executable program named <c>ct_run</c> and an
       erlang module named <c>ct</c>. The ct_run program
       is compiled for the underlying operating system (e.g. Unix/Linux
       or Windows) during the build of the Erlang/OTP system, and is
@@ -43,67 +43,10 @@
       The <c>ct</c> interface functions can be called from the Erlang shell,
       or from any Erlang function, on any supported platform.</p>
 
-    <p>A legacy Bourne shell script - named run_test - exists,
-      which may be manually generated and installed. This script may be used
-      instead of the ct_run program mentioned above, e.g. if the user
-      wishes to modify or customize the Common Test start flags in a simpler
-      way than making changes to the ct_run C program.</p>
-
     <p>The Common Test application is installed with the Erlang/OTP
       system and no additional installation step is required to start using
-      Common Test by means of the ct_run executable program, and/or the interface
-      functions in the <c>ct</c> module. If you wish to use the legacy Bourne
-      shell script version run_test, however, this script needs to be
-      generated first, according to the instructions below.</p>
-
-    <note><p>Before reading on, please note that since Common Test version
-	1.5, the run_test shell script is no longer required for starting
-	tests with Common Test from the OS command line. The ct_run
-	program (descibed above) is the new recommended command line interface
-	for Common Test. The shell script exists mainly for legacy reasons and
-	may not be updated in future releases of Common Test. It may even be removed.
-    </p></note>
-
-    <p>Optional step to generate a shell script for starting Common Test:</p>
-    <p>To generate the run_test shell script, navigate to the
-      <c><![CDATA[common_test-<vsn>]]></c> directory, located among the other
-      OTP applications (under the OTP lib directory). Here execute the
-      <c>install.sh</c> script with argument <c>local</c>:</p>
-
-    <p><c>
-	$ ./install.sh local
-    </c></p>
-    
-    <p>This generates the executable run_test script in the
-      <c><![CDATA[common_test-<vsn>/priv/bin]]></c> directory. The script
-      will include absolute paths to the Common Test and Test Server
-      application directories, so it's possible to copy or move the script to
-      a different location on the file system, if desired, without having to
-      update it. It's of course possible to leave the script under the
-      <c>priv/bin</c> directory and update the PATH variable accordingly (or
-      create a link or alias to it).</p>
-
-    <p>If you, for any reason, have copied Common Test and Test Server
-      to a different location than the default OTP lib directory, you can
-      generate a run_test script with a different top level directory,
-      simply by specifying the directory, instead of <c>local</c>, when running
-      <c>install.sh</c>. Example:</p>
-
-    <p><c>
-	$ install.sh /usr/local/test_tools
-    </c></p>
-
-    <p>Note that the <c><![CDATA[common_test-<vsn>]]></c> and
-      <c><![CDATA[test_server-<vsn>]]></c> directories must be located under the
-      same top directory. Note also that the install script does not copy files
-      or update environment variables. It only generates the run_test
-      script.</p>
-    
-    <p>Whenever you install a new version of Erlang/OTP, the run_test
-      script needs to be regenerated, or updated manually with new directory names
-      (new version numbers), for it to "see" the latest Common Test and Test Server
-      versions.</p>
-
+      Common Test by means of the <c>ct_run</c> executable program, and/or
+      the interface functions in the <c>ct</c> module.</p>
     </section>
 </chapter>
 
diff --git a/lib/common_test/doc/src/run_test_chapter.xml b/lib/common_test/doc/src/run_test_chapter.xml
index 864f82cb63..df60e5f7f2 100644
--- a/lib/common_test/doc/src/run_test_chapter.xml
+++ b/lib/common_test/doc/src/run_test_chapter.xml
@@ -1005,6 +1005,31 @@
 	  for starting the tests, the relaxed scanner
 	  mode is enabled by means of the tuple: <c>{allow_user_terms,true}</c></p>
 	</section>
+	<section>
+	  <title>Reading test specification terms</title>
+	  <p>It's possible to look up terms in the current test specification
+	  (i.e. the spec that's been used to configure and run the current test).
+	  The function <c>get_testspec_terms()</c> returns a list of all test spec
+	  terms (both config- and test terms) and <c>get_testspec_terms(Tags)</c>
+	  returns the term (or a list of terms) matching the tag (or tags) in
+	  <c>Tags</c>.</p>
+	  <p>For example, in the test specification:</p>
+	  <pre>
+	    ...
+	    {label, my_server_smoke_test}.
+	    {config, "../../my_server_setup.cfg"}.
+	    {config, "../../my_server_interface.cfg"}.
+	    ...</pre>	    
+	  <p>And in e.g. a test suite or a CT hook function:</p>
+	  <pre>
+	    ...
+	    [{label,[{_Node,TestType}]}, {config,CfgFiles}] =
+                ct:get_testspec_terms([label,config]),
+
+            [verify_my_server_cfg(TestType, CfgFile) || {Node,CfgFile} &lt;- CfgFiles,
+                                                        Node == node()];
+	    ...</pre>
+	</section>
   </section>
 
   <section>
diff --git a/lib/common_test/install.sh.in b/lib/common_test/install.sh.in
deleted file mode 100644
index 5108c7a259..0000000000
--- a/lib/common_test/install.sh.in
+++ /dev/null
@@ -1,53 +0,0 @@
-#!/bin/sh
-
-CT_ROOT=$1
-CT_VSN=@CT_VSN@
-TS_VSN=@TS_VSN@
-
-if [ -z "$CT_ROOT" ]
-then
-    echo "install.sh: need CT_ROOT (absolute) directory or 'local' as argument"
-    exit 1
-fi
-
-if [ $CT_ROOT = "local" ]
-then
-    CT_DIR=`pwd`
-    cd priv
-    sed -e "s,@CTPATH@,$CT_DIR/ebin," \
-        -e "s,@TSPATH@,$CT_DIR/../test_server/ebin," \
-	run_test.in > bin/run_test
-    chmod 775 bin/run_test
-    echo "install successful, start script created in " $CT_ROOT/common_test-$CT_VSN/priv/bin
-else
-
-    if [ ! -d "$CT_ROOT" ]
-    then
-	echo "install.sh: CT_ROOT argument must be a valid directory"
-	exit 1
-    fi
-
-    if [ `echo $CT_ROOT | awk '{ print substr($1,1,1) }'` != "/" ]
-    then
-	echo "install.sh: need an absolute path to CT_ROOT"
-	exit 1
-    fi
-
-    if [ ! -d $CT_ROOT/common_test-$CT_VSN ]
-    then
-	echo "install.sh: The directory $CT_ROOT/common_test-$CT_VSN does not exist"
-	exit 1
-    fi
-
-    if [ -d $CT_ROOT/common_test-$CT_VSN/priv ]
-    then
-	cd $CT_ROOT/common_test-$CT_VSN/priv
-	sed -e "s;@CTPATH@;$CT_ROOT/common_test-$CT_VSN/ebin;" \
-	    -e "s;@TSPATH@;$CT_ROOT/test_server-$TS_VSN/ebin;" \
-	    run_test.in > bin/run_test
-	chmod 775 bin/run_test
-	echo "install successful, start script created in " $CT_ROOT/common_test-$CT_VSN/priv/bin
-    fi
-fi
-
-
diff --git a/lib/common_test/priv/Makefile.in b/lib/common_test/priv/Makefile.in
index 1bc6b82ebb..7765b06f95 100644
--- a/lib/common_test/priv/Makefile.in
+++ b/lib/common_test/priv/Makefile.in
@@ -66,12 +66,7 @@ JS = jquery-latest.js jquery.tablesorter.min.js
 # Rules
 #
 
-include ../../test_server/vsn.mk
 debug opt:
-	$(V_at)sed -e 's;@CT_VSN@;$(VSN);' \
-            -e 's;@TS_VSN@;$(TEST_SERVER_VSN);' \
-            ../install.sh.in > install.sh
-	- $(V_at)chmod -f 775 install.sh
 
 docs:
 
diff --git a/lib/common_test/priv/run_test.in b/lib/common_test/priv/run_test.in
deleted file mode 100644
index 1508751e4f..0000000000
--- a/lib/common_test/priv/run_test.in
+++ /dev/null
@@ -1,63 +0,0 @@
-#!/bin/sh 
-
-args=""
-
-while [ $1 ]; do
-    if [ $1 = "-config" ]; then
-	args="$args -ct_config";
-    elif [ $1 = "-decrypt_key" ]; then
-	args="$args -ct_decrypt_key";
-    elif [ $1 = "-decrypt_file" ]; then
-	args="$args -ct_decrypt_file";
-    elif [ $1 = "-vts" ]; then
-	vts=1;
-	args="$args $1";
-    elif [ $1 = "-browser" ]; then
-	browser=$2;
-	args="$args $1";
-    elif [ $1 = "-shell" ]; then
-	shell=1;
-	args="$args $1";
-    elif [ $1 = "-ctname" ]; then
-	ctname=$2;
-	args="$args";
-    elif [ $1 = "-ctmaster" ]; then
-	master=1;
-	args="$args";
-    else
-	args="$args $1"
-    fi
-    shift
-done
-
-if [ $vts ]; then
-    erl -sname ct \
-	-pa @CTPATH@ \
-	-pa @TSPATH@ \
-	-s webtool script_start vts $browser \
-	-s ct_run script_start \
-	$args;
-elif [ $shell ]; then
-    erl -sname ct \
-	-pa @CTPATH@ \
-	-pa @TSPATH@ \
-	-s ct_run script_start \
-	$args;
-elif [ $ctname ]; then
-    erl -sname $ctname \
-	-pa @CTPATH@ \
-	-pa @TSPATH@ \
-	$args;
-elif [ $master ]; then
-    erl -sname ct_master \
-	-pa @CTPATH@ \
-	-pa @TSPATH@ \
-	$args;
-else
-    erl -sname ct \
-	-pa @CTPATH@ \
-	-pa @TSPATH@ \
-	-s ct_run script_start \
-	-s erlang halt \
-	$args
-fi
diff --git a/lib/common_test/src/Makefile b/lib/common_test/src/Makefile
index 449cba6c83..e3d5102db8 100644
--- a/lib/common_test/src/Makefile
+++ b/lib/common_test/src/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 2003-2013. All Rights Reserved.
+# Copyright Ericsson AB 2003-2014. All Rights Reserved.
 #
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
@@ -77,7 +77,8 @@ MODULES= \
 	ct_conn_log_h \
 	cth_conn_log \
 	ct_groups \
-	ct_property_test
+	ct_property_test \
+	ct_release_test
 
 TARGET_MODULES= $(MODULES:%=$(EBIN)/%)
 BEAM_FILES= $(MODULES:%=$(EBIN)/%.$(EMULATOR))
diff --git a/lib/common_test/src/common_test.app.src b/lib/common_test/src/common_test.app.src
index 580d5dbd7b..0be1466fc9 100644
--- a/lib/common_test/src/common_test.app.src
+++ b/lib/common_test/src/common_test.app.src
@@ -63,9 +63,10 @@
 		ct_master_logs]},
   {applications, [kernel,stdlib]},
   {env, []},
-  {runtime_dependencies,["xmerl-1.3.7","webtool-0.8.10","tools-2.6.14",
-			 "test_server-3.7.1","stdlib-2.0","ssh-3.0.1",
-			 "snmp-4.25.1","sasl-2.4","runtime_tools-1.8.14",
-			 "kernel-3.0","inets-5.10","erts-6.0",
-			 "debugger-4.0","crypto-3.3","compiler-5.0"]}]}.
+  {runtime_dependencies,["xmerl-1.3.8","tools-2.8",
+			 "test_server-3.9","stdlib-2.5","ssh-4.0",
+			 "snmp-5.1.2","sasl-2.4.2","runtime_tools-1.8.16",
+			 "kernel-4.0","inets-6.0","erts-7.0",
+			 "debugger-4.1","crypto-3.6","compiler-6.0",
+			 "observer-2.1"]}]}.
 
diff --git a/lib/common_test/src/ct.erl b/lib/common_test/src/ct.erl
index 9d8fce2789..5ed1346f1e 100644
--- a/lib/common_test/src/ct.erl
+++ b/lib/common_test/src/ct.erl
@@ -79,6 +79,7 @@
 %% Other interface functions
 -export([get_status/0, abort_current_testcase/1,
 	 get_event_mgr_ref/0,
+	 get_testspec_terms/0, get_testspec_terms/1,
 	 encrypt_config_file/2, encrypt_config_file/3,
 	 decrypt_config_file/2, decrypt_config_file/3]).
 
@@ -463,6 +464,50 @@ reload_config(Required)->
     ct_config:reload_config(Required).
 
 %%%-----------------------------------------------------------------
+%%% @spec get_testspec_terms() -> TestSpecTerms | undefined
+%%%      TestSpecTerms = [{Tag,Value}]
+%%%      Value = [term()]
+%%%
+%%% @doc Get a list of all test specification terms used to
+%%% configure and run this test.
+%%%
+get_testspec_terms() ->
+    case ct_util:get_testdata(testspec) of
+	undefined ->
+	    undefined;
+	CurrSpecRec ->
+	    ct_testspec:testspec_rec2list(CurrSpecRec)
+    end.
+
+%%%-----------------------------------------------------------------
+%%% @spec get_testspec_terms(Tags) -> TestSpecTerms | undefined
+%%%      Tags = [Tag] | Tag
+%%%      Tag = atom()
+%%%      TestSpecTerms = [{Tag,Value}] | {Tag,Value}
+%%%      Value = [{Node,term()}] | [term()]
+%%%      Node = atom()
+%%%
+%%% @doc Read one or more terms from the test specification used
+%%% to configure and run this test. Tag is any valid test specification
+%%% tag, such as e.g. <c>label</c>, <c>config</c>, <c>logdir</c>.
+%%% User specific terms are also available to read if the
+%%% <c>allow_user_terms</c> option has been set. Note that all value tuples
+%%% returned, except user terms, will have the node name as first element.
+%%% Note also that in order to read test terms, use <c>Tag = tests</c>
+%%% (rather than <c>suites</c>, <c>groups</c> or <c>cases</c>). Value is
+%%% then the list of *all* tests on the form:
+%%% <c>[{Node,Dir,[{TestSpec,GroupsAndCases1},...]},...], where
+%%% GroupsAndCases = [{Group,[Case]}] | [Case]</c>.
+get_testspec_terms(Tags) ->
+    case ct_util:get_testdata(testspec) of
+	undefined ->
+	    undefined;
+	CurrSpecRec ->
+	    ct_testspec:testspec_rec2list(Tags, CurrSpecRec)
+    end.
+
+
+%%%-----------------------------------------------------------------
 %%% @spec log(Format) -> ok
 %%% @equiv log(default,50,Format,[])
 log(Format) ->
diff --git a/lib/common_test/src/ct_config.erl b/lib/common_test/src/ct_config.erl
index 5c80a299f8..4b92ca6f8f 100644
--- a/lib/common_test/src/ct_config.erl
+++ b/lib/common_test/src/ct_config.erl
@@ -693,8 +693,7 @@ make_crypto_key(String) ->
     {[K1,K2,K3],IVec}.
 
 random_bytes(N) ->
-    {A,B,C} = now(),
-    random:seed(A, B, C),
+    random:seed(os:timestamp()),
     random_bytes_1(N, []).
 
 random_bytes_1(0, Acc) -> Acc;
diff --git a/lib/common_test/src/ct_conn_log_h.erl b/lib/common_test/src/ct_conn_log_h.erl
index cff02a46d9..2d15035cd8 100644
--- a/lib/common_test/src/ct_conn_log_h.erl
+++ b/lib/common_test/src/ct_conn_log_h.erl
@@ -34,6 +34,8 @@
 
 -define(WIDTH,80).
 
+-define(now, os:timestamp()).
+
 %%%-----------------------------------------------------------------
 %%% Callbacks
 init({GL,ConnLogs}) ->
@@ -72,14 +74,14 @@ handle_event({_Type, GL, _Msg}, State) when node(GL) /= node() ->
 handle_event({_Type,GL,{Pid,{ct_connection,Mod,Action,ConnName},Report}},
 	     State) ->
     Info = conn_info(Pid,#conn_log{name=ConnName,action=Action,module=Mod}),
-    write_report(now(),Info,Report,GL,State),
+    write_report(?now,Info,Report,GL,State),
     {ok, State};
 handle_event({_Type,GL,{Pid,Info=#conn_log{},Report}}, State) ->
-    write_report(now(),conn_info(Pid,Info),Report,GL,State),
+    write_report(?now,conn_info(Pid,Info),Report,GL,State),
     {ok, State};
 handle_event({error_report,GL,{Pid,_,[{ct_connection,ConnName}|R]}}, State) ->
     %% Error reports from connection
-    write_error(now(),conn_info(Pid,#conn_log{name=ConnName}),R,GL,State),
+    write_error(?now,conn_info(Pid,#conn_log{name=ConnName}),R,GL,State),
     {ok, State};
 handle_event(_What, State) ->
     {ok, State}.
diff --git a/lib/common_test/src/ct_framework.erl b/lib/common_test/src/ct_framework.erl
index 498950c9d1..91368d3137 100644
--- a/lib/common_test/src/ct_framework.erl
+++ b/lib/common_test/src/ct_framework.erl
@@ -113,6 +113,7 @@ init_tc1(?MODULE,_,error_in_suite,[Config0]) when is_list(Config0) ->
     ct_event:notify(#event{name=tc_start,
 			   node=node(),
 			   data={?MODULE,error_in_suite}}),
+    ct_suite_init(?MODULE, error_in_suite, [], Config0),
     case ?val(error, Config0) of
 	undefined ->
 	    {fail,"unknown_error_in_suite"};
@@ -635,7 +636,20 @@ try_set_default(Name,Key,Info,Where) ->
 end_tc(Mod, Fun, Args) ->
     %% Have to keep end_tc/3 for backwards compatibility issues
     end_tc(Mod, Fun, Args, '$end_tc_dummy').
-end_tc(?MODULE,error_in_suite,_, _) ->		% bad start!
+end_tc(?MODULE,error_in_suite,{Result,[Args]},Return) ->
+    %% this clause gets called if CT has encountered a suite that
+    %% can't be executed
+    FinalNotify =
+	case ct_hooks:end_tc(?MODULE, error_in_suite, Args, Result, Return) of
+	    '$ct_no_change' ->
+		Result;
+	    HookResult ->
+		HookResult
+	end,
+    Event = #event{name=tc_done,
+		   node=node(),
+		   data={?MODULE,error_in_suite,tag(FinalNotify)}},
+    ct_event:sync_notify(Event),
     ok;
 end_tc(Mod,Func,{TCPid,Result,[Args]}, Return) when is_pid(TCPid) ->
     end_tc(Mod,Func,TCPid,Result,Args,Return);
@@ -873,8 +887,8 @@ error_notification(Mod,Func,_Args,{Error,Loc}) ->
     end,
 
     PrintErr = fun(ErrFormat, ErrArgs) ->
-		       Div = "~n- - - - - - - - - - - - - - - - "
-			   "- - - - - - - - - -~n",
+		       Div = "~n- - - - - - - - - - - - - - - - - - - "
+			     "- - - - - - - - - - - - - - - - - - - - -~n",
 		       io:format(user, lists:concat([Div,ErrFormat,Div,"~n"]),
 				 ErrArgs),
 		       Link =
@@ -1062,9 +1076,32 @@ get_all_cases1(_, []) ->
 
 get_all(Mod, ConfTests) ->	
     case catch apply(Mod, all, []) of
-	{'EXIT',_} ->
-	    Reason = 
-		list_to_atom(atom_to_list(Mod)++":all/0 is missing"),
+	{'EXIT',{undef,[{Mod,all,[],_} | _]}} ->
+	    Reason =
+		case code:which(Mod) of
+		    non_existing ->
+			list_to_atom(atom_to_list(Mod)++
+					 " can not be compiled or loaded");
+		    _ ->
+			list_to_atom(atom_to_list(Mod)++":all/0 is missing")
+		end,
+	    %% this makes test_server call error_in_suite as first
+	    %% (and only) test case so we can report Reason properly
+	    [{?MODULE,error_in_suite,[[{error,Reason}]]}];
+	{'EXIT',ExitReason} ->
+	    case ct_util:get_testdata({error_in_suite,Mod}) of
+		undefined ->
+		    ErrStr = io_lib:format("~n*** ERROR *** "
+					   "~w:all/0 failed: ~p~n",
+					   [Mod,ExitReason]),
+		    io:format(user, ErrStr, []),
+		    %% save the error info so it doesn't get printed twice
+		    ct_util:set_testdata_async({{error_in_suite,Mod},
+						ExitReason});
+		_ExitReason ->
+		    ct_util:delete_testdata({error_in_suite,Mod})
+	    end,
+	    Reason = list_to_atom(atom_to_list(Mod)++":all/0 failed"),
 	    %% this makes test_server call error_in_suite as first
 	    %% (and only) test case so we can report Reason properly
 	    [{?MODULE,error_in_suite,[[{error,Reason}]]}];
@@ -1287,6 +1324,8 @@ report(What,Data) ->
 	    end,
 	    ct_logs:unregister_groupleader(ReportingPid),
 	    case {Func,Result} of
+		{error_in_suite,_} when Suite == ?MODULE ->
+		    ok;
 		{init_per_suite,_} ->
 		    ok;
 		{end_per_suite,_} ->
diff --git a/lib/common_test/src/ct_gen_conn.erl b/lib/common_test/src/ct_gen_conn.erl
index 56082086f6..8da10ee0f3 100644
--- a/lib/common_test/src/ct_gen_conn.erl
+++ b/lib/common_test/src/ct_gen_conn.erl
@@ -24,10 +24,9 @@
 
 -module(ct_gen_conn).
 
--compile(export_all).
-
--export([start/4, stop/1, get_conn_pid/1]).
+-export([start/4, stop/1, get_conn_pid/1, check_opts/1]).
 -export([call/2, call/3, return/2, do_within_time/2]).
+-export([log/3, start_log/1, cont_log/2, end_log/0]).
 
 %%----------------------------------------------------------------------
 %% Exported types
diff --git a/lib/common_test/src/ct_logs.erl b/lib/common_test/src/ct_logs.erl
index fa55a9754e..7c8c720e13 100644
--- a/lib/common_test/src/ct_logs.erl
+++ b/lib/common_test/src/ct_logs.erl
@@ -73,6 +73,8 @@
 
 -define(abs(Name), filename:absname(Name)).
 
+-define(now, os:timestamp()).
+
 -record(log_cache, {version,
 		    all_runs = [],
 		    tests = []}).
@@ -311,7 +313,7 @@ unregister_groupleader(Pid) ->
 %%% data to log (as in <code>io:format(Format,Args)</code>).</p>
 log(Heading,Format,Args) ->
     cast({log,sync,self(),group_leader(),ct_internal,?MAX_IMPORTANCE,
-	  [{int_header(),[log_timestamp(now()),Heading]},
+	  [{int_header(),[log_timestamp(?now),Heading]},
 	   {Format,Args},
 	   {int_footer(),[]}]}),
     ok.
@@ -333,7 +335,7 @@ log(Heading,Format,Args) ->
 %%% @see end_log/0
 start_log(Heading) ->
     cast({log,sync,self(),group_leader(),ct_internal,?MAX_IMPORTANCE,
-	  [{int_header(),[log_timestamp(now()),Heading]}]}),
+	  [{int_header(),[log_timestamp(?now),Heading]}]}),
     ok.
 
 %%%-----------------------------------------------------------------
@@ -491,11 +493,11 @@ tc_print(Category,Importance,Format,Args) ->
 get_heading(default) ->
     io_lib:format("\n-----------------------------"
 		  "-----------------------\n~s\n",
-		  [log_timestamp(now())]);
+		  [log_timestamp(?now)]);
 get_heading(Category) ->
     io_lib:format("\n-----------------------------"
 		  "-----------------------\n~s  ~w\n",
-		  [log_timestamp(now()),Category]).    
+		  [log_timestamp(?now),Category]).    
     
 
 %%%-----------------------------------------------------------------
@@ -553,13 +555,13 @@ div_header(Class) ->
     div_header(Class,"User").
 div_header(Class,Printer) ->
     "\n<div class=\"" ++ atom_to_list(Class) ++ "\"><b>*** " ++ Printer ++
-    " " ++ log_timestamp(now()) ++ " ***</b>".
+    " " ++ log_timestamp(?now) ++ " ***</b>".
 div_footer() ->
     "</div>".
 
 
 maybe_log_timestamp() ->
-    {MS,S,US} = now(),
+    {MS,S,US} = ?now,
     case get(log_timestamp) of
 	{MS,S,_} ->
 	    ok;
@@ -686,7 +688,7 @@ logger(Parent, Mode, Verbosity) ->
     make_last_run_index(Time),
     CtLogFd = open_ctlog(?misc_io_log),
     io:format(CtLogFd,int_header()++int_footer(),
-	      [log_timestamp(now()),"Common Test Logger started"]),
+	      [log_timestamp(?now),"Common Test Logger started"]),
     Parent ! {started,self(),{Time,filename:absname("")}},
     set_evmgr_gl(CtLogFd),
 
@@ -835,7 +837,7 @@ logger_loop(State) ->
 	stop ->
 	    io:format(State#logger_state.ct_log_fd,
 		      int_header()++int_footer(),
-		      [log_timestamp(now()),"Common Test Logger finished"]),
+		      [log_timestamp(?now),"Common Test Logger finished"]),
 	    close_ctlog(State#logger_state.ct_log_fd),
 	    ok
     end.
@@ -2052,6 +2054,13 @@ runentry(Dir, Totals={Node,Label,Logs,
 					     ?testname_width-3)),
 		lists:flatten(io_lib:format("~ts...",[Trunc]))
 	end,
+    TotMissingStr =
+	if NotBuilt > 0 ->
+		["<font color=\"red\">",
+		 integer_to_list(NotBuilt),"</font>"];
+	   true ->
+		integer_to_list(NotBuilt)
+	end,
     Total = TotSucc+TotFail+AllSkip,
     A = xhtml(["<td align=center><font size=\"-1\">",Node,
 	       "</font></td>\n",
@@ -2071,7 +2080,7 @@ runentry(Dir, Totals={Node,Label,Logs,
 	 "<td align=right>",TotFailStr,"</td>\n",
 	 "<td align=right>",integer_to_list(AllSkip),
 	 " (",UserSkipStr,"/",AutoSkipStr,")</td>\n",
-	 "<td align=right>",integer_to_list(NotBuilt),"</td>\n"],
+	 "<td align=right>",TotMissingStr,"</td>\n"],
     TotalsStr = A++B++C,
     
     XHTML = [xhtml("<tr>\n", ["<tr class=\"",odd_or_even(),"\">\n"]),
diff --git a/lib/common_test/src/ct_master_logs.erl b/lib/common_test/src/ct_master_logs.erl
index 5393097f57..384c1f6863 100644
--- a/lib/common_test/src/ct_master_logs.erl
+++ b/lib/common_test/src/ct_master_logs.erl
@@ -37,6 +37,8 @@
 -define(details_file_name,"details.info").
 -define(table_color,"lightblue").
 
+-define(now, os:timestamp()).
+
 %%%--------------------------------------------------------------------
 %%% API
 %%%--------------------------------------------------------------------
@@ -54,7 +56,7 @@ start(LogDir,Nodes) ->
     end.
 
 log(Heading,Format,Args) ->
-    cast({log,self(),[{int_header(),[log_timestamp(now()),Heading]},
+    cast({log,self(),[{int_header(),[log_timestamp(?now),Heading]},
 		      {Format,Args},
 		      {int_footer(),[]}]}),
     ok.
@@ -132,7 +134,7 @@ init(Parent,LogDir,Nodes) ->
 					atom_to_list(N) ++ " "
 				end,Nodes)),
 
-    io:format(CtLogFd,int_header(),[log_timestamp(now()),"Test Nodes\n"]),
+    io:format(CtLogFd,int_header(),[log_timestamp(?now),"Test Nodes\n"]),
     io:format(CtLogFd,"~ts\n",[NodeStr]),
     io:put_chars(CtLogFd,[int_footer(),"\n"]),
 
@@ -189,7 +191,7 @@ loop(State) ->
 	    make_all_runs_index(State#state.logdir),
 	    io:format(State#state.log_fd,
 		      int_header()++int_footer(),
-		      [log_timestamp(now()),"Finished!"]),
+		      [log_timestamp(?now),"Finished!"]),
 	    close_ct_master_log(State#state.log_fd),
 	    close_nodedir_index(State#state.nodedir_ix_fd),
 	    ok
diff --git a/lib/common_test/src/ct_netconfc.erl b/lib/common_test/src/ct_netconfc.erl
index 80ffb51ab9..cca08bd063 100644
--- a/lib/common_test/src/ct_netconfc.erl
+++ b/lib/common_test/src/ct_netconfc.erl
@@ -191,6 +191,7 @@
 	 get_config/4,
 	 edit_config/3,
 	 edit_config/4,
+	 edit_config/5,
 	 delete_config/2,
 	 delete_config/3,
 	 copy_config/3,
@@ -691,15 +692,39 @@ get_config(Client, Source, Filter, Timeout) ->
 
 %%----------------------------------------------------------------------
 %% @spec edit_config(Client, Target, Config) -> Result
-%% @equiv edit_config(Client, Target, Config, infinity)
+%% @equiv edit_config(Client, Target, Config, [], infinity)
 edit_config(Client, Target, Config) ->
     edit_config(Client, Target, Config, ?DEFAULT_TIMEOUT).
 
 %%----------------------------------------------------------------------
--spec edit_config(Client, Target, Config, Timeout) -> Result when
+-spec edit_config(Client, Target, Config, OptParamsOrTimeout) -> Result when
       Client :: client(),
       Target :: netconf_db(),
       Config :: simple_xml(),
+      OptParamsOrTimeout :: [simple_xml()] | timeout(),
+      Result :: ok | {error,error_reason()}.
+%% @doc
+%%
+%% If `OptParamsOrTimeout' is a timeout value, then this is
+%% equivalent to {@link edit_config/5. edit_config(Client, Target,
+%% Config, [], Timeout)}.
+%%
+%% If `OptParamsOrTimeout' is a list of simple XML, then this is
+%% equivalent to {@link edit_config/5. edit_config(Client, Target,
+%% Config, OptParams, infinity)}.
+%%
+%% @end
+edit_config(Client, Target, Config, Timeout) when ?is_timeout(Timeout) ->
+    edit_config(Client, Target, Config, [], Timeout);
+edit_config(Client, Target, Config, OptParams) when is_list(OptParams) ->
+    edit_config(Client, Target, Config, OptParams, ?DEFAULT_TIMEOUT).
+
+%%----------------------------------------------------------------------
+-spec edit_config(Client, Target, Config, OptParams, Timeout) -> Result when
+      Client :: client(),
+      Target :: netconf_db(),
+      Config :: simple_xml(),
+      OptParams :: [simple_xml()],
       Timeout :: timeout(),
       Result :: ok | {error,error_reason()}.
 %% @doc Edit configuration data.
@@ -708,10 +733,20 @@ edit_config(Client, Target, Config) ->
 %% include `:candidate' or `:startup' in its list of
 %% capabilities.
 %%
+%% `OptParams' can be used for specifying optional parameters
+%% (`default-operation', `test-option' or `error-option') that will be
+%% added to the `edit-config' request. The value must be a list
+%% containing valid simple XML, for example
+%%
+%% ```
+%% [{'default-operation', ["none"]},
+%%  {'error-option', ["rollback-on-error"]}]
+%%'''
+%%
 %% @end
 %%----------------------------------------------------------------------
-edit_config(Client, Target, Config, Timeout) ->
-    call(Client, {send_rpc_op, edit_config, [Target,Config], Timeout}).
+edit_config(Client, Target, Config, OptParams, Timeout) ->
+    call(Client, {send_rpc_op, edit_config, [Target,Config,OptParams], Timeout}).
 
 
 %%----------------------------------------------------------------------
@@ -1100,6 +1135,7 @@ handle_msg({get_event_streams=Op,Streams,Timeout}, From, State) ->
     SimpleXml = encode_rpc_operation(get,[Filter]),
     do_send_rpc(Op, SimpleXml, Timeout, From, State).
 
+%% @private
 handle_msg({ssh_cm, CM, {data, Ch, _Type, Data}}, State) ->
     ssh_connection:adjust_window(CM,Ch,size(Data)),
     handle_data(Data, State);
@@ -1254,8 +1290,8 @@ encode_rpc_operation(get,[Filter]) ->
     {get,filter(Filter)};
 encode_rpc_operation(get_config,[Source,Filter]) ->
     {'get-config',[{source,[Source]}] ++ filter(Filter)};
-encode_rpc_operation(edit_config,[Target,Config]) ->
-    {'edit-config',[{target,[Target]},{config,[Config]}]};
+encode_rpc_operation(edit_config,[Target,Config,OptParams]) ->
+    {'edit-config',[{target,[Target]}] ++ OptParams ++ [{config,[Config]}]};
 encode_rpc_operation(delete_config,[Target]) ->
     {'delete-config',[{target,[Target]}]};
 encode_rpc_operation(copy_config,[Target,Source]) ->
@@ -1712,6 +1748,7 @@ log(#connection{host=Host,port=Port,name=Name},Action,Data) ->
 
 
 %% Log callback - called from the error handler process
+%% @private
 format_data(How,Data) ->
     %% Assuming that the data is encoded as UTF-8.  If it is not, then
     %% the printout might be wrong, but the format function will not
diff --git a/lib/common_test/src/ct_release_test.erl b/lib/common_test/src/ct_release_test.erl
new file mode 100644
index 0000000000..3f0b5bda67
--- /dev/null
+++ b/lib/common_test/src/ct_release_test.erl
@@ -0,0 +1,936 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2014-2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%-----------------------------------------------------------------
+%% @doc EXPERIMENTAL support for testing of upgrade.
+%%
+%% This is a library module containing support for test of release
+%% related activities in one or more applications. Currenty it
+%% supports upgrade only.
+%%
+%% == Configuration ==
+%%
+%% In order to find version numbers of applications to upgrade from,
+%% `{@module}' needs to access and start old OTP
+%% releases. A `common_test' configuration file can be used for
+%% specifying the location of such releases, for example:
+%%
+%% ```
+%% %% old-rels.cfg
+%% {otp_releases,[{r16b,"/path/to/R16B03-1/bin/erl"},
+%% 	       {'17',"/path/to/17.3/bin/erl"}]}.'''
+%%
+%% The configuration file should preferably point out the latest patch
+%% level on each major release.
+%%
+%% If no such configuration file is given, {@link init/1} will return
+%% `{skip,Reason}' and any attempt at running {@link upgrade/4}
+%% will fail.
+%%
+%% == Callback functions ==
+%%
+%% The following functions should be exported from a {@module}
+%% callback module.
+%%
+%% All callback functions are called on the node where the upgrade is
+%% executed.
+%%
+%% <dl>
+%%   <dt>Module:upgrade_init(CtData,State) -> NewState</dt>
+%%   <dd>Types:
+%%
+%%     <b><code>CtData = {@link ct_data()}</code></b><br/>
+%%     <b><code>State = NewState = cb_state()</code></b>
+%%
+%%     Initialyze system before upgrade test starts.
+%%
+%%     This function is called before the upgrade is started. All
+%%     applications given in {@link upgrade/4} are already started by
+%%     the boot script, so this callback is intended for additional
+%%     initialization, if necessary.
+%%
+%%     <code>CtData</code> is an opaque data structure which shall be used
+%%     in any call to <code>ct_release_test</code> inside the callback.
+%%
+%%     Example:
+%%
+%% ```
+%% upgrade_init(CtData,State) ->
+%%     {ok,{FromVsn,ToVsn}} = ct_release_test:get_app_vsns(CtData,myapp),
+%%     open_connection(State).'''
+%%   </dd>
+%%
+%%   <dt>Module:upgrade_upgraded(CtData,State) -> NewState</dt>
+%%   <dd>Types:
+%%
+%%     <b><code>CtData = {@link ct_data()}</code></b><br/>
+%%     <b><code>State = NewState = cb_state()</code></b>
+%%
+%%     Check that upgrade was successful.
+%%
+%%     This function is called after the release_handler has
+%%     successfully unpacked and installed the new release, and it has
+%%     been made permanent. It allows application specific checks to
+%%     ensure that the upgrade was successful.
+%%
+%%     <code>CtData</code> is an opaque data structure which shall be used
+%%     in any call to <code>ct_release_test</code> inside the callback.
+%%
+%%     Example:
+%%
+%% ```
+%% upgrade_upgraded(CtData,State) ->
+%%     check_connection_still_open(State).'''
+%%   </dd>
+%%
+%%   <dt>Module:upgrade_downgraded(CtData,State) -> NewState</dt>
+%%   <dd>Types:
+%%
+%%     <b><code>CtData = {@link ct_data()}</code></b><br/>
+%%     <b><code>State = NewState = cb_state()</code></b>
+%%
+%%     Check that downgrade was successful.
+%%
+%%     This function is called after the release_handler has
+%%     successfully re-installed the original release, and it has been
+%%     made permanent. It allows application specific checks to ensure
+%%     that the downgrade was successful.
+%%
+%%     <code>CtData</code> is an opaque data structure which shall be used
+%%     in any call to <code>ct_release_test</code> inside the callback.
+%%
+%%     Example:
+%%
+%% ```
+%% upgrade_downgraded(CtData,State) ->
+%%     check_connection_closed(State).'''
+%%   </dd>
+%% </dl>
+%% @end
+%%-----------------------------------------------------------------
+-module(ct_release_test).
+
+-export([init/1, upgrade/4, cleanup/1, get_app_vsns/2, get_appup/2]).
+
+-include_lib("kernel/include/file.hrl").
+
+%%-----------------------------------------------------------------
+-define(testnode, otp_upgrade).
+-define(exclude_apps, [hipe, typer, dialyzer]). % never include these apps
+
+%%-----------------------------------------------------------------
+-record(ct_data, {from,to}).
+
+%%-----------------------------------------------------------------
+-type config() :: [{atom(),term()}].
+-type cb_state() :: term().
+-opaque ct_data() :: #ct_data{}.
+-export_type([ct_data/0]).
+
+-callback upgrade_init(ct_data(),cb_state()) -> cb_state().
+-callback upgrade_upgraded(ct_data(),cb_state()) -> cb_state().
+-callback upgrade_downgraded(ct_data(),cb_state()) -> cb_state().
+
+%%-----------------------------------------------------------------
+-spec init(Config) -> Result when
+      Config :: config(),
+      Result :: config() | SkipOrFail,
+      SkipOrFail :: {skip,Reason} | {fail,Reason}.
+%% @doc Initialize `{@module}'.
+%%
+%% This function can be called from any of the
+%% `init_per_*' functions in the test suite. It updates
+%% the given `Config' with data that will be
+%% used by future calls to other functions in this module. The
+%% returned configuration must therefore also be returned from
+%% the calling `init_per_*'.
+%%
+%% If the initialization fails, e.g. if a required release can
+%% not be found, the function returns `{skip,Reason}'. In
+%% this case the other test support functions in this mudule
+%% can not be used.
+%%
+%% Example:
+%%
+%% ```
+%% init_per_suite(Config) ->
+%%     ct_release_test:init(Config).'''
+%%
+init(Config) ->
+    try init_upgrade_test() of
+	{Major,Minor} ->
+	    [{release_test,[{major,Major},{minor,Minor}]} | Config]
+    catch throw:Thrown ->
+	    Thrown
+    end.
+
+%%-----------------------------------------------------------------
+-spec upgrade(App,Level,Callback,Config) -> any() when
+      App :: atom(),
+      Level :: minor | major,
+      Callback :: {module(),InitState},
+      InitState :: cb_state(),
+      Config :: config();
+	     (Apps,Level,Callback,Config) -> any() when
+      Apps :: [App],
+      App :: atom(),
+      Level :: minor | major,
+      Callback :: {module(),InitState},
+      InitState :: cb_state(),
+      Config :: config().
+%% @doc Test upgrade of the given application(s).
+%%
+%% This function can be called from a test case. It requires that
+%% `Config' has been initialized by calling {@link
+%% init/1} prior to this, for example from `init_per_suite/1'.
+%%
+%% Upgrade tests are performed as follows:
+%%
+%% <ol>
+%%   <li>Figure out which OTP release to test upgrade
+%%     from. Start a node running that release and find the
+%%     application versions on that node. Terminate the
+%%     node.</li>
+%%   <li>Figure out all dependencies for the applications under
+%%     test.</li>
+%%   <li>Create a release containing the core
+%%     applications `kernel', `stdlib' and `sasl'
+%%     in addition to the application(s) under test and all
+%%     dependencies of these. The versions of the applications
+%%     under test will be the ones found on the OTP release to
+%%     upgrade from. The versions of all other applications will
+%%     be those found on the current node, i.e. the common_test
+%%     node. This is the "From"-release.</li>
+%%   <li>Create another release containing the same
+%%     applications as in the previous step, but with all
+%%     application versions taken from the current node. This is
+%%     the "To"-release.</li>
+%%   <li>Install the "From"-release and start a new node
+%%     running this release.</li>
+%%   <li>Perform the upgrade test and allow customized
+%%     control by using callbacks:
+%%     <ol>
+%%       <li>Callback: `upgrade_init/2'</li>
+%%       <li>Unpack the new release</li>
+%%       <li>Install the new release</li>
+%%       <li>Callback: `upgrade_upgraded/2'</li>
+%%       <li>Install the original release</li>
+%%       <li>Callback: `upgrade_downgraded/2'</li>
+%%     </ol>
+%%   </li>
+%% </ol>
+%%
+%% `App' or `Apps'
+%% specifies the applications under test, i.e. the applications
+%% which shall be upgraded. All other applications that are
+%% included have the same releases in the "From"- and
+%% "To"-releases and will therefore not be upgraded.
+%%
+%% `Level' specifies which OTP release to
+%% pick the "From" versions from.
+%% <dl>
+%%   <dt>major</dt>
+%%   <dd>From verions are picked from the previous major
+%%     release. For example, if the test is run on an OTP-17
+%%     node, `{@module}' will pick the application
+%%     "From" versions from an OTP installation running OTP
+%%     R16B.</dd>
+%%
+%%   <dt>minor</dt>
+%%   <dd>From verions are picked from the current major
+%%     release. For example, if the test is run on an OTP-17
+%%     node, `{@module}' will pick the application
+%%     "From" versions from an OTP installation running an
+%%     earlier patch level of OTP-17.</dd>
+%% </dl>
+%%
+%% The application "To" versions are allways picked from the
+%% current node, i.e. the common_test node.
+%%
+%% `Callback' specifies the module (normally the
+%% test suite) which implements the {@section Callback functions}, and
+%% the initial value of the `State' variable used in these
+%% functions.
+%%
+%% `Config' is the input argument received
+%% in the test case function.
+%%
+%% Example:
+%%
+%% ```
+%% minor_upgrade(Config) ->
+%%     ct_release_test:upgrade(ssl,minor,{?MODULE,[]},Config).
+%% '''
+%%
+upgrade(App,Level,Callback,Config) when is_atom(App) ->
+    upgrade([App],Level,Callback,Config);
+upgrade(Apps,Level,Callback,Config) ->
+    Dir = proplists:get_value(priv_dir,Config),
+    CreateDir = filename:join([Dir,Level,create]),
+    InstallDir = filename:join([Dir,Level,install]),
+    ok = filelib:ensure_dir(filename:join(CreateDir,"*")),
+    ok = filelib:ensure_dir(filename:join(InstallDir,"*")),
+    try upgrade(Apps,Level,Callback,CreateDir,InstallDir,Config) of
+	ok ->
+	    %%rm_rf(CreateDir),
+	    Tars = filelib:wildcard(filename:join(CreateDir,"*.tar.gz")),
+	    _ = [file:delete(Tar) || Tar <- Tars],
+	    rm_rf(InstallDir),
+	    ok
+    catch throw:{fail,Reason} ->
+	    ct:fail(Reason);
+	  throw:{skip,Reason} ->
+	    rm_rf(CreateDir),
+	    rm_rf(InstallDir),
+	    {skip,Reason}
+    after
+	%% Brutally kill all nodes that erroneously survived the test.
+	%% Note, we will not reach this if the test fails with a
+	%% timetrap timeout in the test suite! Thus we can have
+	%% hanging nodes...
+	Nodes = nodes(),
+	[rpc:call(Node,erlang,halt,[]) || Node <- Nodes]
+    end.
+
+%%-----------------------------------------------------------------
+-spec cleanup(Config) -> Result when
+      Config :: config(),
+      Result :: config().
+%% @doc Clean up after tests.
+%%
+%% This function shall be called from the `end_per_*' function
+%% complementing the `init_per_*' function where {@link init/1}
+%% is called.
+%%
+%% It cleans up after the test, for example kills hanging
+%% nodes.
+%%
+%% Example:
+%%
+%% ```
+%% end_per_suite(Config) ->
+%%     ct_release_test:cleanup(Config).'''
+%%
+cleanup(Config) ->
+    Nodes = [node_name(?testnode)|nodes()],
+    [rpc:call(Node,erlang,halt,[]) || Node <- Nodes],
+    Config.
+
+%%-----------------------------------------------------------------
+-spec get_app_vsns(CtData,App) -> {ok,{From,To}} | {error,Reason} when
+      CtData :: ct_data(),
+      App :: atom(),
+      From :: string(),
+      To :: string(),
+      Reason :: {app_not_found,App}.
+%% @doc Get versions involved in this upgrade for the given application.
+%%
+%% This function can be called from inside any of the callback
+%% functions. It returns the old (From) and new (To) versions involved
+%% in the upgrade/downgrade test for the given application.
+%%
+%% <code>CtData</code> must be the first argument received in the
+%% calling callback function - an opaque data structure set by
+%% <code>ct_release_tests</code>.
+get_app_vsns(#ct_data{from=FromApps,to=ToApps},App) ->
+    case {lists:keyfind(App,1,FromApps),lists:keyfind(App,1,ToApps)} of
+	{{App,FromVsn,_},{App,ToVsn,_}} ->
+	    {ok,{FromVsn,ToVsn}};
+	_ ->
+	    {error,{app_not_found,App}}
+    end.
+
+%%-----------------------------------------------------------------
+-spec get_appup(CtData,App) -> {ok,Appup} | {error,Reason} when
+      CtData :: ct_data(),
+      App :: atom(),
+      Appup :: {From,To,Up,Down},
+      From :: string(),
+      To :: string(),
+      Up :: [Instr],
+      Down :: [Instr],
+      Instr :: term(),
+      Reason :: {app_not_found,App} | {vsn_not_found,{App,From}}.
+%% @doc Get appup instructions for the given application.
+%%
+%% This function can be called from inside any of the callback
+%% functions. It reads the appup file for the given application and
+%% returns the instructions for upgrade and downgrade for the versions
+%% in the test.
+%%
+%% <code>CtData</code> must be the first argument received in the
+%% calling callback function - an opaque data structure set by
+%% <code>ct_release_tests</code>.
+%%
+%% See reference manual for appup files for types definitions for the
+%% instructions.
+get_appup(#ct_data{from=FromApps,to=ToApps},App) ->
+    case lists:keyfind(App,1,ToApps) of
+	{App,ToVsn,ToDir} ->
+	    Appup = filename:join([ToDir, "ebin", atom_to_list(App)++".appup"]),
+	    {ok, [{ToVsn, Ups, Downs}]} = file:consult(Appup),
+	    {App,FromVsn,_} = lists:keyfind(App,1,FromApps),
+	    case {systools_relup:appup_search_for_version(FromVsn,Ups),
+		  systools_relup:appup_search_for_version(FromVsn,Downs)} of
+		{{ok,Up},{ok,Down}} ->
+		    {ok,{FromVsn,ToVsn,Up,Down}};
+		_ ->
+		    {error,{vsn_not_found,{App,FromVsn}}}
+	    end;
+	false ->
+	    {error,{app_not_found,App}}
+    end.
+
+%%-----------------------------------------------------------------
+init_upgrade_test() ->
+    %% Check that a real release is running, not e.g. cerl
+    ok = application:ensure_started(sasl),
+    case release_handler:which_releases() of
+	[{_,_,[],_}] ->
+	    %% Fake release, no applications
+	    throw({skip, "Need a real release running to create other releases"});
+	_ ->
+	    Major = init_upgrade_test(major),
+	    Minor = init_upgrade_test(minor),
+	    {Major,Minor}
+    end.
+
+init_upgrade_test(Level) ->
+    {FromVsn,ToVsn} = get_rels(Level),
+    OldRel =
+	case test_server:is_release_available(FromVsn) of
+	    true ->
+		{release,FromVsn};
+	    false ->
+		case ct:get_config({otp_releases,list_to_atom(FromVsn)}) of
+		    undefined ->
+			false;
+		    Prog0 ->
+			case os:find_executable(Prog0) of
+			    false ->
+				false;
+			    Prog ->
+				{prog,Prog}
+			end
+		end
+	end,
+    case OldRel of
+	false ->
+	    ct:log("Release ~p is not available."
+		   " Upgrade on '~p' level can not be tested.",
+		   [FromVsn,Level]),
+	    undefined;
+	_ ->
+	    init_upgrade_test(FromVsn,ToVsn,OldRel)
+    end.
+
+get_rels(major) ->
+    %% Given that the current major release is X, then this is an
+    %% upgrade from major release X-1 to the current release.
+    Current = erlang:system_info(otp_release),
+    PreviousMajor = previous_major(Current),
+    {PreviousMajor,Current};
+get_rels(minor) ->
+    %% Given that this is a (possibly) patched version of major
+    %% release X, then this is an upgrade from major release X to the
+    %% current release.
+    CurrentMajor = erlang:system_info(otp_release),
+    Current = CurrentMajor++"_patched",
+    {CurrentMajor,Current}.
+
+init_upgrade_test(FromVsn,ToVsn,OldRel) ->
+    OtpRel = list_to_atom("otp-"++FromVsn),
+    ct:log("Starting node to fetch application versions to upgrade from"),
+    {ok,Node} = test_server:start_node(OtpRel,peer,[{erl,[OldRel]}]),
+    {Apps,Path} = fetch_all_apps(Node),
+    test_server:stop_node(Node),
+    {FromVsn,ToVsn,Apps,Path}.
+
+fetch_all_apps(Node) ->
+    Paths = rpc:call(Node,code,get_path,[]),
+    %% Find all possible applications in the path
+    AppFiles =
+	lists:flatmap(
+	  fun(P) ->
+		  filelib:wildcard(filename:join(P,"*.app"))
+	  end,
+	  Paths),
+    %% Figure out which version of each application is running on this
+    %% node. Using application:load and application:get_key instead of
+    %% reading the .app files since there might be multiple versions
+    %% of a .app file and we only want the one that is actually
+    %% running.
+    AppVsns =
+	lists:flatmap(
+	  fun(F) ->
+		  A = list_to_atom(filename:basename(filename:rootname(F))),
+		  _ = rpc:call(Node,application,load,[A]),
+		  case rpc:call(Node,application,get_key,[A,vsn]) of
+		      {ok,V} -> [{A,V}];
+		      _ -> []
+		  end
+	  end,
+	  AppFiles),
+    ErtsVsn = rpc:call(Node, erlang, system_info, [version]),
+    {[{erts,ErtsVsn}|AppVsns], Paths}.
+
+
+%%-----------------------------------------------------------------
+upgrade(Apps,Level,Callback,CreateDir,InstallDir,Config) ->
+    ct:log("Test upgrade of the following applications: ~p",[Apps]),
+    ct:log(".rel files and start scripts are created in:~n~ts",[CreateDir]),
+    ct:log("The release is installed in:~n~ts",[InstallDir]),
+    case proplists:get_value(release_test,Config) of
+	undefined ->
+	    throw({fail,"ct_release_test:init/1 not run"});
+	RTConfig ->
+	    case proplists:get_value(Level,RTConfig) of
+		undefined ->
+		    throw({skip,"Old release not available"});
+		Data ->
+		    {FromVsn,FromRel,FromAppsVsns} =
+			target_system(Apps, CreateDir, InstallDir, Data),
+		    {ToVsn,ToRel,ToAppsVsns} =
+			upgrade_system(Apps, FromRel, CreateDir,
+				       InstallDir, Data),
+		    ct:log("Upgrade from: OTP-~ts, ~p",[FromVsn, FromAppsVsns]),
+		    ct:log("Upgrade to: OTP-~ts, ~p",[ToVsn, ToAppsVsns]),
+		    do_upgrade(Callback, FromVsn, FromAppsVsns, ToRel,
+			       ToAppsVsns, InstallDir)
+	    end
+    end.
+
+%%% This is similar to sasl/examples/src/target_system.erl, but with
+%%% the following adjustments:
+%%% - add a log directory
+%%% - use an own 'start' script
+%%% - chmod 'start' and 'start_erl'
+target_system(Apps,CreateDir,InstallDir,{FromVsn,_,AllAppsVsns,Path}) ->
+    RelName0 = "otp-"++FromVsn,
+
+    AppsVsns = [{A,V} || {A,V} <- AllAppsVsns, lists:member(A,Apps)],
+    {RelName,ErtsVsn} = create_relfile(AppsVsns,CreateDir,RelName0,FromVsn),
+
+    %% Create .script and .boot
+    ok = systools(make_script,[RelName,[{path,Path}]]),
+
+    %% Create base tar file - i.e. erts and all apps
+    ok = systools(make_tar,[RelName,[{erts,code:root_dir()},
+				     {path,Path}]]),
+
+    %% Unpack the tar to complete the installation
+    erl_tar:extract(RelName ++ ".tar.gz", [{cwd, InstallDir}, compressed]),
+
+    %% Add bin and log dirs
+    BinDir = filename:join([InstallDir, "bin"]),
+    file:make_dir(BinDir),
+    file:make_dir(filename:join(InstallDir,"log")),
+
+    %% Delete start scripts - they will be added later
+    ErtsBinDir = filename:join([InstallDir, "erts-" ++ ErtsVsn, "bin"]),
+    file:delete(filename:join([ErtsBinDir, "erl"])),
+    file:delete(filename:join([ErtsBinDir, "start"])),
+    file:delete(filename:join([ErtsBinDir, "start_erl"])),
+
+    %% Copy .boot to bin/start.boot
+    copy_file(RelName++".boot",filename:join([BinDir, "start.boot"])),
+
+    %% Copy scripts from erts-xxx/bin to bin
+    copy_file(filename:join([ErtsBinDir, "epmd"]),
+              filename:join([BinDir, "epmd"]), [preserve]),
+    copy_file(filename:join([ErtsBinDir, "run_erl"]),
+              filename:join([BinDir, "run_erl"]), [preserve]),
+    copy_file(filename:join([ErtsBinDir, "to_erl"]),
+              filename:join([BinDir, "to_erl"]), [preserve]),
+
+    %% create start_erl.data, sys.config and start.src
+    StartErlData = filename:join([InstallDir, "releases", "start_erl.data"]),
+    write_file(StartErlData, io_lib:fwrite("~s ~s~n", [ErtsVsn, FromVsn])),
+    SysConfig = filename:join([InstallDir, "releases", FromVsn, "sys.config"]),
+    write_file(SysConfig, "[]."),
+    StartSrc = filename:join(ErtsBinDir,"start.src"),
+    write_file(StartSrc,start_script()),
+    ok = file:change_mode(StartSrc,8#0755),
+
+    %% Make start_erl executable
+    %% (this has been fixed in OTP 17 - it is now installed with
+    %% $INSTALL_SCRIPT instead of $INSTALL_DATA and should therefore
+    %% be executable from the start)
+    ok = file:change_mode(filename:join(ErtsBinDir,"start_erl.src"),8#0755),
+
+    %% Substitute variables in erl.src, start.src and start_erl.src
+    %% (.src found in erts-xxx/bin - result stored in bin)
+    subst_src_scripts(["erl", "start", "start_erl"], ErtsBinDir, BinDir,
+                      [{"FINAL_ROOTDIR", InstallDir}, {"EMU", "beam"}],
+                      [preserve]),
+
+    %% Create RELEASES
+    RelFile = filename:join([InstallDir, "releases",
+			     filename:basename(RelName) ++ ".rel"]),
+    release_handler:create_RELEASES(InstallDir, RelFile),
+
+    {FromVsn, RelName,AppsVsns}.
+
+systools(Func,Args) ->
+    case apply(systools,Func,Args) of
+	ok ->
+	    ok;
+	error ->
+	    throw({fail,{systools,Func,Args}})
+    end.
+
+%%% This is a copy of $ROOT/erts-xxx/bin/start.src, modified to add
+%%% sname and heart
+start_script() ->
+    ["#!/bin/sh\n"
+     "ROOTDIR=%FINAL_ROOTDIR%\n"
+     "\n"
+     "if [ -z \"$RELDIR\" ]\n"
+     "then\n"
+     "   RELDIR=$ROOTDIR/releases\n"
+     "fi\n"
+     "\n"
+     "START_ERL_DATA=${1:-$RELDIR/start_erl.data}\n"
+     "\n"
+     "$ROOTDIR/bin/run_erl -daemon /tmp/ $ROOTDIR/log \"exec $ROOTDIR/bin/start_erl $ROOTDIR $RELDIR $START_ERL_DATA -sname ",atom_to_list(?testnode)," -heart\"\n"].
+
+%%% Create a release containing the current (the test node) OTP
+%%% release, including relup to allow upgrade from an earlier OTP
+%%% release.
+upgrade_system(Apps, FromRel, CreateDir, InstallDir, {_,ToVsn,_,_}) ->
+    ct:log("Generating release to upgrade to."),
+
+    RelName0 = "otp-"++ToVsn,
+
+    AppsVsns = get_vsns(Apps),
+    {RelName,_} = create_relfile(AppsVsns,CreateDir,RelName0,ToVsn),
+    FromPath = filename:join([InstallDir,lib,"*",ebin]),
+
+    ok = systools(make_script,[RelName]),
+    ok = systools(make_relup,[RelName,[FromRel],[FromRel],
+			      [{path,[FromPath]},
+			       {outdir,CreateDir}]]),
+    SysConfig = filename:join([CreateDir, "sys.config"]),
+    write_file(SysConfig, "[]."),
+
+    ok = systools(make_tar,[RelName,[{erts,code:root_dir()}]]),
+
+    {ToVsn, RelName,AppsVsns}.
+
+%%% Start a new node running the release from target_system/6
+%%% above. Then upgrade to the system from upgrade_system/6.
+do_upgrade({Cb,InitState},FromVsn,FromAppsVsns,ToRel,ToAppsVsns,InstallDir) ->
+    ct:log("Upgrade test attempting to start node.~n"
+	   "If test fails, logs can be found in:~n~ts",
+	   [filename:join(InstallDir,log)]),
+    Start = filename:join([InstallDir,bin,start]),
+    {ok,Node} = start_node(Start,FromVsn,FromAppsVsns),
+
+    %% Add path to this module, to allow calls to get_appup/2
+    Dir = filename:dirname(code:which(?MODULE)),
+    _ = rpc:call(Node,code,add_pathz,[Dir]),
+
+    ct:log("Node started: ~p",[Node]),
+    CtData = #ct_data{from = [{A,V,code:lib_dir(A)} || {A,V} <- FromAppsVsns],
+		      to=[{A,V,code:lib_dir(A)} || {A,V} <- ToAppsVsns]},
+    State1 = do_callback(Node,Cb,upgrade_init,[CtData,InitState]),
+
+    [{"OTP upgrade test",FromVsn,_,permanent}] =
+	rpc:call(Node,release_handler,which_releases,[]),
+    ToRelName = filename:basename(ToRel),
+    copy_file(ToRel++".tar.gz",
+	      filename:join([InstallDir,releases,ToRelName++".tar.gz"])),
+    ct:log("Unpacking new release"),
+    {ok,ToVsn} = rpc:call(Node,release_handler,unpack_release,[ToRelName]),
+    [{"OTP upgrade test",ToVsn,_,unpacked},
+     {"OTP upgrade test",FromVsn,_,permanent}] =
+	rpc:call(Node,release_handler,which_releases,[]),
+    ct:log("Installing new release"),
+    case rpc:call(Node,release_handler,install_release,[ToVsn]) of
+	{ok,FromVsn,_} ->
+	    ok;
+	{continue_after_restart,FromVsn,_} ->
+	    ct:log("Waiting for node restart")
+    end,
+    %% even if install_release returned {ok,...} there might be an
+    %% emulator restart (instruction restart_emulator), so we must
+    %% always make sure the node is running.
+    wait_node_up(current,ToVsn,ToAppsVsns),
+
+    [{"OTP upgrade test",ToVsn,_,current},
+     {"OTP upgrade test",FromVsn,_,permanent}] =
+	rpc:call(Node,release_handler,which_releases,[]),
+    ct:log("Permanenting new release"),
+    ok = rpc:call(Node,release_handler,make_permanent,[ToVsn]),
+    [{"OTP upgrade test",ToVsn,_,permanent},
+     {"OTP upgrade test",FromVsn,_,old}] =
+	rpc:call(Node,release_handler,which_releases,[]),
+
+    State2 = do_callback(Node,Cb,upgrade_upgraded,[CtData,State1]),
+
+    ct:log("Re-installing old release"),
+    case rpc:call(Node,release_handler,install_release,[FromVsn]) of
+	{ok,FromVsn,_} ->
+	    ok;
+	{continue_after_restart,FromVsn,_} ->
+	    ct:log("Waiting for node restart")
+    end,
+    %% even if install_release returned {ok,...} there might be an
+    %% emulator restart (instruction restart_emulator), so we must
+    %% always make sure the node is running.
+    wait_node_up(current,FromVsn,FromAppsVsns),
+
+    [{"OTP upgrade test",ToVsn,_,permanent},
+     {"OTP upgrade test",FromVsn,_,current}] =
+	rpc:call(Node,release_handler,which_releases,[]),
+    ct:log("Permanenting old release"),
+    ok = rpc:call(Node,release_handler,make_permanent,[FromVsn]),
+    [{"OTP upgrade test",ToVsn,_,old},
+     {"OTP upgrade test",FromVsn,_,permanent}] =
+	rpc:call(Node,release_handler,which_releases,[]),
+
+    _State3 = do_callback(Node,Cb,upgrade_downgraded,[CtData,State2]),
+
+    ct:log("Terminating node ~p",[Node]),
+    erlang:monitor_node(Node,true),
+    _ = rpc:call(Node,init,stop,[]),
+    receive {nodedown,Node} -> ok end,
+    ct:log("Node terminated"),
+
+    ok.
+
+do_callback(Node,Mod,Func,Args) ->
+    Dir = filename:dirname(code:which(Mod)),
+    _ = rpc:call(Node,code,add_path,[Dir]),
+    ct:log("Calling ~p:~p/1",[Mod,Func]),
+    R = rpc:call(Node,Mod,Func,Args),
+    ct:log("~p:~p/~w returned: ~p",[Mod,Func,length(Args),R]),
+    case R of
+	{badrpc,Error} ->
+	    test_server:fail({test_upgrade_callback,Mod,Func,Args,Error});
+	NewState ->
+	    NewState
+    end.
+
+%%% Library functions
+previous_major("17") ->
+    "r16b";
+previous_major(Rel) ->
+    integer_to_list(list_to_integer(Rel)-1).
+
+create_relfile(AppsVsns,CreateDir,RelName0,RelVsn) ->
+    UpgradeAppsVsns = [{A,V,restart_type(A)} || {A,V} <- AppsVsns],
+
+    CoreAppVsns0 = get_vsns([kernel,stdlib,sasl]),
+    CoreAppVsns =
+	[{A,V,restart_type(A)} || {A,V} <- CoreAppVsns0,
+				  false == lists:keymember(A,1,AppsVsns)],
+
+    Apps = [App || {App,_} <- AppsVsns],
+    StartDepsVsns = get_start_deps(Apps,CoreAppVsns),
+    StartApps = [StartApp || {StartApp,_,_} <- StartDepsVsns] ++ Apps,
+
+    {RuntimeDepsVsns,_} = get_runtime_deps(StartApps,StartApps,[],[]),
+
+    AllAppsVsns0 = StartDepsVsns ++ UpgradeAppsVsns ++ RuntimeDepsVsns,
+
+    %% Should test tools really be included? Some library functions
+    %% here could be used by callback, but not everything since
+    %% processes of these applications will not be running.
+    TestToolAppsVsns0 = get_vsns([test_server,common_test]),
+    TestToolAppsVsns =
+	[{A,V,none} || {A,V} <- TestToolAppsVsns0,
+		       false == lists:keymember(A,1,AllAppsVsns0)],
+
+    AllAppsVsns1 = AllAppsVsns0 ++ TestToolAppsVsns,
+    AllAppsVsns = [AV || AV={A,_,_} <- AllAppsVsns1,
+			 false == lists:member(A,?exclude_apps)],
+
+    ErtsVsn = erlang:system_info(version),
+
+    %% Create the .rel file
+    RelContent = {release,{"OTP upgrade test",RelVsn},{erts,ErtsVsn},AllAppsVsns},
+    RelName = filename:join(CreateDir,RelName0),
+    RelFile = RelName++".rel",
+    {ok,Fd} = file:open(RelFile,[write,{encoding,utf8}]),
+    io:format(Fd,"~tp.~n",[RelContent]),
+    ok = file:close(Fd),
+    {RelName,ErtsVsn}.
+
+get_vsns(Apps) ->
+    [begin
+	 _ = application:load(A),
+	 {ok,V} = application:get_key(A,vsn),
+	 {A,V}
+     end || A <- Apps].
+
+get_start_deps([App|Apps],Acc) ->
+    _ = application:load(App),
+    {ok,StartDeps} = application:get_key(App,applications),
+    StartDepsVsns =
+	[begin
+	     _ = application:load(StartApp),
+	     {ok,StartVsn} = application:get_key(StartApp,vsn),
+	     {StartApp,StartVsn,restart_type(StartApp)}
+	 end || StartApp <- StartDeps,
+		false == lists:keymember(StartApp,1,Acc)],
+    DepsStartDeps = get_start_deps(StartDeps,Acc ++ StartDepsVsns),
+    get_start_deps(Apps,DepsStartDeps);
+get_start_deps([],Acc) ->
+    Acc.
+
+get_runtime_deps([App|Apps],StartApps,Acc,Visited) ->
+    case lists:member(App,Visited) of
+	true ->
+	    get_runtime_deps(Apps,StartApps,Acc,Visited);
+	false ->
+	    %% runtime_dependencies should be possible to read with
+	    %% application:get_key/2, but still isn't so we need to
+	    %% read the .app file...
+	    AppFile = code:where_is_file(atom_to_list(App) ++ ".app"),
+	    {ok,[{application,App,Attrs}]} = file:consult(AppFile),
+	    RuntimeDeps =
+		lists:flatmap(
+		  fun(Str) ->
+			  [RuntimeAppStr,_] = string:tokens(Str,"-"),
+			  RuntimeApp = list_to_atom(RuntimeAppStr),
+			  case {lists:keymember(RuntimeApp,1,Acc),
+				lists:member(RuntimeApp,StartApps)} of
+			      {false,false} when RuntimeApp=/=erts ->
+				  [RuntimeApp];
+			      _ ->
+				  []
+			  end
+		  end,
+		  proplists:get_value(runtime_dependencies,Attrs,[])),
+	    RuntimeDepsVsns =
+		[begin
+		     _ = application:load(RuntimeApp),
+		     {ok,RuntimeVsn} = application:get_key(RuntimeApp,vsn),
+		     {RuntimeApp,RuntimeVsn,none}
+		 end || RuntimeApp <- RuntimeDeps],
+	    {DepsRuntimeDeps,NewVisited} =
+		get_runtime_deps(RuntimeDeps,StartApps,Acc++RuntimeDepsVsns,[App|Visited]),
+	    get_runtime_deps(Apps,StartApps,DepsRuntimeDeps,NewVisited)
+    end;
+get_runtime_deps([],_,Acc,Visited) ->
+    {Acc,Visited}.
+
+restart_type(App) when App==kernel; App==stdlib; App==sasl ->
+    permanent;
+restart_type(_) ->
+    temporary.
+
+copy_file(Src, Dest) ->
+    copy_file(Src, Dest, []).
+
+copy_file(Src, Dest, Opts) ->
+    {ok,_} = file:copy(Src, Dest),
+    case lists:member(preserve, Opts) of
+        true ->
+            {ok, FileInfo} = file:read_file_info(Src),
+            file:write_file_info(Dest, FileInfo);
+        false ->
+            ok
+    end.
+
+write_file(FName, Conts) ->
+    Enc = file:native_name_encoding(),
+    {ok, Fd} = file:open(FName, [write]),
+    file:write(Fd, unicode:characters_to_binary(Conts,Enc,Enc)),
+    file:close(Fd).
+
+%% Substitute all occurrences of %Var% for Val in the given scripts
+subst_src_scripts(Scripts, SrcDir, DestDir, Vars, Opts) ->
+    lists:foreach(fun(Script) ->
+                          subst_src_script(Script, SrcDir, DestDir,
+                                           Vars, Opts)
+                  end, Scripts).
+
+subst_src_script(Script, SrcDir, DestDir, Vars, Opts) ->
+    subst_file(filename:join([SrcDir, Script ++ ".src"]),
+               filename:join([DestDir, Script]),
+               Vars, Opts).
+
+subst_file(Src, Dest, Vars, Opts) ->
+    {ok, Bin} = file:read_file(Src),
+    Conts = binary_to_list(Bin),
+    NConts = subst(Conts, Vars),
+    write_file(Dest, NConts),
+    case lists:member(preserve, Opts) of
+        true ->
+            {ok, FileInfo} = file:read_file_info(Src),
+            file:write_file_info(Dest, FileInfo);
+        false ->
+            ok
+    end.
+
+subst(Str, [{Var,Val}|Vars]) ->
+    subst(re:replace(Str,"%"++Var++"%",Val,[{return,list}]),Vars);
+subst(Str, []) ->
+    Str.
+
+%%% Start a node by executing the given start command. This node will
+%%% be used for upgrade.
+start_node(Start,ExpVsn,ExpAppsVsns) ->
+    Port = open_port({spawn_executable, Start}, []),
+    unlink(Port),
+    erlang:port_close(Port),
+    wait_node_up(permanent,ExpVsn,ExpAppsVsns).
+
+wait_node_up(ExpStatus,ExpVsn,ExpAppsVsns) ->
+    Node = node_name(?testnode),
+    wait_node_up(Node,ExpStatus,ExpVsn,lists:keysort(1,ExpAppsVsns),60).
+
+wait_node_up(Node,ExpStatus,ExpVsn,ExpAppsVsns,0) ->
+    test_server:fail({node_not_started,app_check_failed,ExpVsn,ExpAppsVsns,
+		      rpc:call(Node,release_handler,which_releases,[ExpStatus]),
+		      rpc:call(Node,application,which_applications,[])});
+wait_node_up(Node,ExpStatus,ExpVsn,ExpAppsVsns,N) ->
+    case {rpc:call(Node,release_handler,which_releases,[ExpStatus]),
+	  rpc:call(Node, application, which_applications, [])} of
+	{[{_,ExpVsn,_,_}],Apps} when is_list(Apps) ->
+	    case [{A,V} || {A,_,V} <- lists:keysort(1,Apps),
+			   lists:keymember(A,1,ExpAppsVsns)] of
+		ExpAppsVsns ->
+		    {ok,Node};
+		_ ->
+		    timer:sleep(2000),
+		    wait_node_up(Node,ExpStatus,ExpVsn,ExpAppsVsns,N-1)
+	    end;
+	_ ->
+	    timer:sleep(2000),
+	    wait_node_up(Node,ExpStatus,ExpVsn,ExpAppsVsns,N-1)
+    end.
+
+node_name(Sname) ->
+    {ok,Host} = inet:gethostname(),
+    list_to_atom(atom_to_list(Sname) ++ "@" ++ Host).
+
+rm_rf(Dir) ->
+    case file:read_file_info(Dir) of
+	{ok, #file_info{type = directory}} ->
+	    {ok, Content} = file:list_dir_all(Dir),
+	    [rm_rf(filename:join(Dir,C)) || C <- Content],
+	    ok=file:del_dir(Dir),
+	    ok;
+	{ok, #file_info{}} ->
+	    ok=file:delete(Dir);
+	_ ->
+	    ok
+    end.
diff --git a/lib/common_test/src/ct_run.erl b/lib/common_test/src/ct_run.erl
index be547b443b..0eafe72020 100644
--- a/lib/common_test/src/ct_run.erl
+++ b/lib/common_test/src/ct_run.erl
@@ -77,7 +77,8 @@
 	       multiply_timetraps = 1,
 	       scale_timetraps = false,
 	       create_priv_dir,
-	       testspecs = [],
+	       testspec_files = [],
+	       current_testspec,
 	       tests,
 	       starter}).
 
@@ -492,8 +493,11 @@ execute_one_spec(TS, Opts, Args) ->
     case check_and_install_configfiles(AllConfig, TheLogDir, Opts) of
 	ok ->      % read tests from spec
 	    {Run,Skip} = ct_testspec:prepare_tests(TS, node()),
-	    do_run(Run, Skip, Opts#opts{config=AllConfig,
-					logdir=TheLogDir}, Args);
+	    Result = do_run(Run, Skip, Opts#opts{config=AllConfig,
+						 logdir=TheLogDir,
+						 current_testspec=TS}, Args),
+	    ct_util:delete_testdata(testspec),
+	    Result;
 	Error ->
 	    Error
     end.
@@ -584,7 +588,7 @@ combine_test_opts(TS, Specs, Opts) ->
 
     Opts#opts{label = Label,
 	      profile = Profile,
-	      testspecs = Specs,
+	      testspec_files = Specs,
 	      cover = Cover,
 	      cover_stop = CoverStop,
 	      logdir = which(logdir, LogDir),
@@ -709,7 +713,7 @@ script_start4(#opts{label = Label, profile = Profile,
 		    logopts = LogOpts,
 		    verbosity = Verbosity,
 		    enable_builtin_hooks = EnableBuiltinHooks,
-		    logdir = LogDir, testspecs = Specs}, _Args) ->
+		    logdir = LogDir, testspec_files = Specs}, _Args) ->
 
     %% label - used by ct_logs
     application:set_env(common_test, test_label, Label),
@@ -1110,7 +1114,7 @@ run_test2(StartOpts) ->
 	undefined ->
 	    case lists:keysearch(prepared_tests, 1, StartOpts) of
 		{value,{_,{Run,Skip},Specs}} ->	% use prepared tests
-		    run_prepared(Run, Skip, Opts#opts{testspecs = Specs},
+		    run_prepared(Run, Skip, Opts#opts{testspec_files = Specs},
 				 StartOpts);
 		false ->
 		    run_dir(Opts, StartOpts)
@@ -1118,11 +1122,11 @@ run_test2(StartOpts) ->
 	Specs ->
 	    Relaxed = get_start_opt(allow_user_terms, value, false, StartOpts),
 	    %% using testspec(s) as input for test
-	    run_spec_file(Relaxed, Opts#opts{testspecs = Specs}, StartOpts)
+	    run_spec_file(Relaxed, Opts#opts{testspec_files = Specs}, StartOpts)
     end.
 
 run_spec_file(Relaxed,
-	      Opts = #opts{testspecs = Specs},
+	      Opts = #opts{testspec_files = Specs},
 	      StartOpts) ->
     Specs1 = case Specs of
 		 [X|_] when is_integer(X) -> [Specs];
@@ -1161,7 +1165,10 @@ run_all_specs([{Specs,TS} | TSs], Opts, StartOpts, TotResult) ->
     log_ts_names(Specs),
     Combined = #opts{config = TSConfig} = combine_test_opts(TS, Specs, Opts),
     AllConfig = merge_vals([Opts#opts.config, TSConfig]),
-    try run_one_spec(TS, Combined#opts{config = AllConfig}, StartOpts) of
+    try run_one_spec(TS, 
+		     Combined#opts{config = AllConfig,
+				   current_testspec=TS},
+		     StartOpts) of
 	Result ->
 	    run_all_specs(TSs, Opts, StartOpts, [Result | TotResult])		
     catch
@@ -1406,7 +1413,7 @@ run_testspec2(TestSpec) ->
 	    case check_and_install_configfiles(
 		   Opts#opts.config, LogDir1, Opts) of
 		ok ->
-		    Opts1 = Opts#opts{testspecs = [],
+		    Opts1 = Opts#opts{testspec_files = [],
 				      logdir = LogDir1,
 				      include = AllInclude},
 		    {Run,Skip} = ct_testspec:prepare_tests(TS, node()),
@@ -1627,11 +1634,15 @@ groups_and_cases(Gs, Cs) ->
 tests(TestDir, Suites, []) when is_list(TestDir), is_integer(hd(TestDir)) ->
     [{?testdir(TestDir,Suites),ensure_atom(Suites),all}];
 tests(TestDir, Suite, Cases) when is_list(TestDir), is_integer(hd(TestDir)) ->
+    [{?testdir(TestDir,Suite),ensure_atom(Suite),Cases}];
+tests([TestDir], Suite, Cases) when is_list(TestDir), is_integer(hd(TestDir)) ->
     [{?testdir(TestDir,Suite),ensure_atom(Suite),Cases}].
 tests([{Dir,Suite}],Cases) ->
     [{?testdir(Dir,Suite),ensure_atom(Suite),Cases}];
 tests(TestDir, Suite) when is_list(TestDir), is_integer(hd(TestDir)) ->
-    tests(TestDir, ensure_atom(Suite), all).
+    tests(TestDir, ensure_atom(Suite), all);
+tests([TestDir], Suite) when is_list(TestDir), is_integer(hd(TestDir)) ->
+     tests(TestDir, ensure_atom(Suite), all).
 tests(DirSuites) when is_list(DirSuites), is_tuple(hd(DirSuites)) ->
     [{?testdir(Dir,Suite),ensure_atom(Suite),all} || {Dir,Suite} <- DirSuites];
 tests(TestDir) when is_list(TestDir), is_integer(hd(TestDir)) ->
@@ -1713,6 +1724,9 @@ compile_and_run(Tests, Skip, Opts, Args) ->
     ct_util:set_testdata({stylesheet,Opts#opts.stylesheet}),
     %% save logopts
     ct_util:set_testdata({logopts,Opts#opts.logopts}),
+    %% save info about current testspec (testspec record or undefined)
+    ct_util:set_testdata({testspec,Opts#opts.current_testspec}),
+
     %% enable silent connections
     case Opts#opts.silent_connections of
 	[] ->
@@ -1727,7 +1741,7 @@ compile_and_run(Tests, Skip, Opts, Args) ->
 		    ct_logs:log("Silent connections", "~p", [Conns])
 	    end
     end,
-    log_ts_names(Opts#opts.testspecs),
+    log_ts_names(Opts#opts.testspec_files),
     TestSuites = suite_tuples(Tests),
     
     {_TestSuites1,SuiteMakeErrors,AllMakeErrors} =
@@ -1976,22 +1990,7 @@ final_tests(Tests, Skip, Bad) ->
 
 final_tests1([{TestDir,Suites,_}|Tests], Final, Skip, Bad) when
       is_list(Suites), is_atom(hd(Suites)) ->
-%     Separate =
-% 	fun(S,{DoSuite,Dont}) ->		
-% 		case lists:keymember({TestDir,S},1,Bad) of
-% 		    false ->	
-% 			{[S|DoSuite],Dont};
-% 		    true ->	
-% 			SkipIt = {TestDir,S,"Make failed"},
-% 			{DoSuite,Dont++[SkipIt]}
-% 		end
-% 	end,
-	
-%     {DoSuites,Skip1} =
-% 	lists:foldl(Separate,{[],Skip},Suites),
-%     Do = {TestDir,lists:reverse(DoSuites),all},
-
-    Skip1 = [{TD,S,"Make failed"} || {{TD,S},_} <- Bad, S1 <- Suites,
+    Skip1 = [{TD,S,make_failed} || {{TD,S},_} <- Bad, S1 <- Suites,
 				     S == S1, TD == TestDir],
     Final1 = [{TestDir,S,all} || S <- Suites],
     final_tests1(Tests, lists:reverse(Final1)++Final, Skip++Skip1, Bad);
@@ -2004,7 +2003,7 @@ final_tests1([{TestDir,all,all}|Tests], Final, Skip, Bad) ->
 	    false ->
 		[]
 	end,
-    Missing = [{TestDir,S,"Make failed"} || S <- MissingSuites],
+    Missing = [{TestDir,S,make_failed} || S <- MissingSuites],
     Final1 = [{TestDir,all,all}|Final],
     final_tests1(Tests, Final1, Skip++Missing, Bad);
 
@@ -2016,7 +2015,7 @@ final_tests1([{TestDir,Suite,GrsOrCs}|Tests], Final, Skip, Bad) when
       is_list(GrsOrCs) ->
     case lists:keymember({TestDir,Suite}, 1, Bad) of
 	true ->
-	    Skip1 = Skip ++ [{TestDir,Suite,all,"Make failed"}],
+	    Skip1 = Skip ++ [{TestDir,Suite,all,make_failed}],
 	    final_tests1(Tests, [{TestDir,Suite,all}|Final], Skip1, Bad);
 	false ->
 	    GrsOrCs1 =
diff --git a/lib/common_test/src/ct_slave.erl b/lib/common_test/src/ct_slave.erl
index 872c39de04..9ef6ec6e23 100644
--- a/lib/common_test/src/ct_slave.erl
+++ b/lib/common_test/src/ct_slave.erl
@@ -37,7 +37,7 @@
 
 -record(options, {username, password, boot_timeout, init_timeout,
 		  startup_timeout, startup_functions, monitor_master,
-		  kill_if_fail, erl_flags, env}).
+		  kill_if_fail, erl_flags, env, ssh_port, ssh_opts}).
 
 %%%-----------------------------------------------------------------
 %%% @spec start(Node) -> Result
@@ -254,11 +254,13 @@ fetch_options(Options) ->
     KillIfFail = get_option_value(kill_if_fail, Options, true),
     ErlFlags = get_option_value(erl_flags, Options, []),
     EnvVars = get_option_value(env, Options, []),
+    SSHPort = get_option_value(ssh_port, Options, []),
+    SSHOpts = get_option_value(ssh_opts, Options, []),
     #options{username=UserName, password=Password,
 	     boot_timeout=BootTimeout, init_timeout=InitTimeout,
 	     startup_timeout=StartupTimeout, startup_functions=StartupFunctions,
 	     monitor_master=Monitor, kill_if_fail=KillIfFail,
-	     erl_flags=ErlFlags, env=EnvVars}.
+	     erl_flags=ErlFlags, env=EnvVars, ssh_port=SSHPort, ssh_opts=SSHOpts}.
 
 % send a message when slave node is started
 % @hidden
@@ -399,27 +401,18 @@ spawn_local_node(Node, Options) ->
     Cmd = get_cmd(Node, ErlFlags),
     open_port({spawn, Cmd}, [stream,{env,Env}]).
 
-% start crypto and ssh if not yet started
-check_for_ssh_running() ->
-    case application:get_application(crypto) of
-	undefined->
-	    application:start(crypto),
-	    case application:get_application(ssh) of
-		undefined->
-		    application:start(ssh);
-		{ok, ssh}->
-		    ok
-	    end;
-	{ok, crypto}->
-	    ok
-    end.
-
 % spawn node remotely
 spawn_remote_node(Host, Node, Options) ->
     #options{username=Username,
 	     password=Password,
 	     erl_flags=ErlFlags,
-	     env=Env} = Options,
+	     env=Env,
+       ssh_port=MaybeSSHPort,
+       ssh_opts=SSHOpts} = Options,
+    SSHPort = case MaybeSSHPort of
+                [] -> 22; % Use default SSH port
+                A  -> A
+              end,
     SSHOptions = case {Username, Password} of
 	{[], []}->
 	    [];
@@ -427,14 +420,13 @@ spawn_remote_node(Host, Node, Options) ->
 	    [{user, Username}];
 	{_, _}->
 	    [{user, Username}, {password, Password}]
-    end ++ [{silently_accept_hosts, true}],
-    check_for_ssh_running(),
-    {ok, SSHConnRef} = ssh:connect(atom_to_list(Host), 22, SSHOptions),
+    end ++ [{silently_accept_hosts, true}] ++ SSHOpts,
+    application:ensure_all_started(ssh),
+    {ok, SSHConnRef} = ssh:connect(atom_to_list(Host), SSHPort, SSHOptions),
     {ok, SSHChannelId} = ssh_connection:session_channel(SSHConnRef, infinity),
     ssh_setenv(SSHConnRef, SSHChannelId, Env),
     ssh_connection:exec(SSHConnRef, SSHChannelId, get_cmd(Node, ErlFlags), infinity).
 
-
 ssh_setenv(SSHConnRef, SSHChannelId, [{Var, Value} | Vars])
   when is_list(Var), is_list(Value) ->
     success = ssh_connection:setenv(SSHConnRef, SSHChannelId,
diff --git a/lib/common_test/src/ct_telnet.erl b/lib/common_test/src/ct_telnet.erl
index 844f53731e..b14731e74f 100644
--- a/lib/common_test/src/ct_telnet.erl
+++ b/lib/common_test/src/ct_telnet.erl
@@ -29,7 +29,7 @@
 %% Command timeout = 10 sec (time to wait for a command to return)
 %% Max no of reconnection attempts = 3
 %% Reconnection interval = 5 sek (time to wait in between reconnection attempts)
-%% Keep alive = true (will send NOP to the server every 10 sec if connection is idle)
+%% Keep alive = true (will send NOP to the server every 8 sec if connection is idle)
 %% Polling limit = 0 (max number of times to poll to get a remaining string terminated)
 %% Polling interval = 1 sec (sleep time between polls)</pre>
 %% <p>These parameters can be altered by the user with the following
@@ -1021,7 +1021,7 @@ silent_teln_expect(Name,Pid,Data,Pattern,Prx,Opts) ->
     put(silent,Old),
     Result.
 
-%% teln_expect/5 
+%% teln_expect/6
 %%
 %% This function implements the expect functionality over telnet. In
 %% general there are three possible ways to go:
diff --git a/lib/common_test/src/ct_telnet_client.erl b/lib/common_test/src/ct_telnet_client.erl
index 0c448e5b35..757ccc0aae 100644
--- a/lib/common_test/src/ct_telnet_client.erl
+++ b/lib/common_test/src/ct_telnet_client.erl
@@ -39,7 +39,7 @@
 
 -define(TELNET_PORT, 23).
 -define(OPEN_TIMEOUT,10000).
--define(IDLE_TIMEOUT,10000).
+-define(IDLE_TIMEOUT,8000).
 
 %% telnet control characters
 -define(SE,	240).
@@ -114,7 +114,7 @@ get_data(Pid) ->
 %%%-----------------------------------------------------------------
 %%% Internal functions
 init(Parent, Server, Port, Timeout, KeepAlive, ConnName) ->
-    case gen_tcp:connect(Server, Port, [list,{packet,0}], Timeout) of
+    case gen_tcp:connect(Server, Port, [list,{packet,0},{nodelay,true}], Timeout) of
 	{ok,Sock} ->
 	    dbg("~p connected to: ~p (port: ~w, keep_alive: ~w)\n",
 		[ConnName,Server,Port,KeepAlive]),
@@ -393,7 +393,7 @@ cmd_dbg(Prefix,Cmd) ->
     end.
 
 timestamp() ->
-    {MS,S,US} = now(),
+    {MS,S,US} = os:timestamp(),
     {{Year,Month,Day}, {Hour,Min,Sec}} =
         calendar:now_to_local_time({MS,S,US}),
     MilliSec = trunc(US/1000),
diff --git a/lib/common_test/src/ct_testspec.erl b/lib/common_test/src/ct_testspec.erl
index 10a9bdac67..10c3f2a938 100644
--- a/lib/common_test/src/ct_testspec.erl
+++ b/lib/common_test/src/ct_testspec.erl
@@ -27,6 +27,8 @@
 	 collect_tests_from_list/2, collect_tests_from_list/3,
 	 collect_tests_from_file/2, collect_tests_from_file/3]).
 
+-export([testspec_rec2list/1, testspec_rec2list/2]).
+
 -include("ct_util.hrl").
 -define(testspec_fields, record_info(fields, testspec)).
 
@@ -973,7 +975,8 @@ add_tests([Term={Tag,all_nodes,Data}|Ts],Spec) ->
 					should_be_added(Tag,Node,Data,Spec)],
 	    add_tests(Tests++Ts,Spec);
 	invalid ->				% ignore term
-	    add_tests(Ts,Spec)
+	    Unknown = Spec#testspec.unknown,
+	    add_tests(Ts,Spec#testspec{unknown=Unknown++[Term]})
     end;
 %% create one test entry per node in Nodes and reinsert
 add_tests([{Tag,[],Data}|Ts],Spec) ->
@@ -1001,7 +1004,8 @@ add_tests([Term={Tag,NodeOrOther,Data}|Ts],Spec) ->
 			handle_data(Tag,Node,Data,Spec),
 		    add_tests(Ts,mod_field(Spec,Tag,NodeIxData));
 		invalid ->			% ignore term
-		    add_tests(Ts,Spec)
+		    Unknown = Spec#testspec.unknown,
+		    add_tests(Ts,Spec#testspec{unknown=Unknown++[Term]})
 	    end;
 	false ->
 	    add_tests([{Tag,all_nodes,{NodeOrOther,Data}}|Ts],Spec)
@@ -1012,13 +1016,15 @@ add_tests([Term={Tag,Data}|Ts],Spec) ->
 	valid ->
 	    add_tests([{Tag,all_nodes,Data}|Ts],Spec);
 	invalid ->
-	    add_tests(Ts,Spec)
+	    Unknown = Spec#testspec.unknown,
+	    add_tests(Ts,Spec#testspec{unknown=Unknown++[Term]})
     end;
 %% some other data than a tuple
 add_tests([Other|Ts],Spec) ->	
     case get(relaxed) of
-	true ->		
-	    add_tests(Ts,Spec);
+	true ->
+	    Unknown = Spec#testspec.unknown,
+	    add_tests(Ts,Spec#testspec{unknown=Unknown++[Other]});
 	false ->
 	    throw({error,{undefined_term_in_spec,Other}})
     end;
@@ -1149,6 +1155,24 @@ per_node([N|Ns],Tag,Data,Refs) ->
 per_node([],_,_,_) ->
     [].
 
+%% Change the testspec record "back" to a list of tuples
+testspec_rec2list(Rec) ->
+    {Terms,_} = lists:mapfoldl(fun(unknown, Pos) ->
+				       {element(Pos, Rec),Pos+1};
+				  (F, Pos) ->
+				       {{F,element(Pos, Rec)},Pos+1}
+			       end,2,?testspec_fields),
+    lists:flatten(Terms).
+
+%% Extract one or more values from a testspec record and
+%% return the result as a list of tuples
+testspec_rec2list(Field, Rec) when is_atom(Field) ->
+    [Term] = testspec_rec2list([Field], Rec),
+    Term;
+testspec_rec2list(Fields, Rec) ->
+    Terms = testspec_rec2list(Rec),
+    [{Field,proplists:get_value(Field, Terms)} || Field <- Fields].
+
 %% read the value for FieldName in record Rec#testspec
 read_field(Rec, FieldName) ->
     catch lists:foldl(fun(F, Pos) when F == FieldName ->
diff --git a/lib/common_test/src/ct_util.hrl b/lib/common_test/src/ct_util.hrl
index 845bb55486..f4cf407856 100644
--- a/lib/common_test/src/ct_util.hrl
+++ b/lib/common_test/src/ct_util.hrl
@@ -55,6 +55,7 @@
 		   create_priv_dir=[],
 		   alias=[],
 		   tests=[],
+		   unknown=[],
 		   merge_tests=true}).
 
 -record(cover, {app=none,
diff --git a/lib/common_test/src/cth_surefire.erl b/lib/common_test/src/cth_surefire.erl
index bb12171ea7..3deaefe0e9 100644
--- a/lib/common_test/src/cth_surefire.erl
+++ b/lib/common_test/src/cth_surefire.erl
@@ -59,6 +59,8 @@
 -define(default_report,"junit_report.xml").
 -define(suite_log,"suite.log.html").
 
+-define(now, os:timestamp()).
+
 %% Number of dirs from log root to testcase log file.
 %% ct_run.<node>.<timestamp>/<test_name>/run.<timestamp>/<tc_log>.html
 -define(log_depth,3).
@@ -77,11 +79,11 @@ init(Path, Opts) ->
 	    axis = proplists:get_value(axis,Opts,[]),
 	    properties = proplists:get_value(properties,Opts,[]),
 	    url_base = proplists:get_value(url_base,Opts),
-	    timer = now() }.
+	    timer = ?now }.
 
 pre_init_per_suite(Suite,SkipOrFail,State) when is_tuple(SkipOrFail) ->
     {SkipOrFail, init_tc(State#state{curr_suite = Suite,
-				     curr_suite_ts = now()},
+				     curr_suite_ts = ?now},
 			 SkipOrFail) };
 pre_init_per_suite(Suite,Config,#state{ test_cases = [] } = State) ->
     TcLog = proplists:get_value(tc_logfile,Config),
@@ -96,7 +98,7 @@ pre_init_per_suite(Suite,Config,#state{ test_cases = [] } = State) ->
 	end,
     {Config, init_tc(State#state{ filepath = Path,
 				  curr_suite = Suite,
-				  curr_suite_ts = now(),
+				  curr_suite_ts = ?now,
 				  curr_log_dir = CurrLogDir},
 		     Config) };
 pre_init_per_suite(Suite,Config,State) ->
@@ -169,9 +171,9 @@ do_tc_skip(Res, State) ->
     State#state{ test_cases = [NewTC | tl(TCs)]}.
 
 init_tc(State, Config) when is_list(Config) == false ->
-    State#state{ timer = now(), tc_log =  "" };
+    State#state{ timer = ?now, tc_log =  "" };
 init_tc(State, Config) ->
-    State#state{ timer = now(),
+    State#state{ timer = ?now,
 		 tc_log =  proplists:get_value(tc_logfile, Config, [])}.
 
 end_tc(Func, Config, Res, State) when is_atom(Func) ->
@@ -194,7 +196,7 @@ end_tc(Name, _Config, _Res, State = #state{ curr_suite = Suite,
     ClassName = atom_to_list(Suite),
     PGroup = string:join([ atom_to_list(Group)||
 			     Group <- lists:reverse(Groups)],"."),
-    TimeTakes = io_lib:format("~f",[timer:now_diff(now(),TS) / 1000000]),
+    TimeTakes = io_lib:format("~f",[timer:now_diff(?now,TS) / 1000000]),
     State#state{ test_cases = [#testcase{ log = Log,
 					  url = Url,
 					  timestamp = now_to_string(TS),
@@ -209,7 +211,7 @@ close_suite(#state{ test_cases = [] } = State) ->
     State;
 close_suite(#state{ test_cases = TCs, url_base = UrlBase } = State) ->
     {Total,Fail,Skip} = count_tcs(TCs,0,0,0),
-    TimeTaken = timer:now_diff(now(),State#state.curr_suite_ts) / 1000000,
+    TimeTaken = timer:now_diff(?now,State#state.curr_suite_ts) / 1000000,
     SuiteLog = filename:join(State#state.curr_log_dir,?suite_log),
     SuiteUrl = make_url(UrlBase,SuiteLog),
     Suite = #testsuite{ name = atom_to_list(State#state.curr_suite),
diff --git a/lib/common_test/test/ct_auto_compile_SUITE.erl b/lib/common_test/test/ct_auto_compile_SUITE.erl
index cc546ed30d..3e4da31ab4 100644
--- a/lib/common_test/test/ct_auto_compile_SUITE.erl
+++ b/lib/common_test/test/ct_auto_compile_SUITE.erl
@@ -108,6 +108,8 @@ ac_spec(Config) when is_list(Config) ->
     PrivDir = ?config(priv_dir, Config),
     file:copy(filename:join(DataDir, "bad_SUITE.erl"),
 	      filename:join(PrivDir, "bad_SUITE.erl")),
+    Suite = filename:join(DataDir, "dummy_SUITE"),
+    compile:file(Suite, [{outdir,PrivDir}]),
     TestSpec = [{label,ac_spec},
 		{auto_compile,false},
 		{suites,PrivDir,all}],
@@ -160,28 +162,34 @@ events_to_check(Test, N) ->
 
 test_events(ac_flag) ->
     [
-     {ct_test_support_eh,start_logging,{'DEF','RUNDIR'}},
-     {ct_test_support_eh,test_start,{'DEF',{'START_TIME','LOGDIR'}}},
-     {ct_test_support_eh,start_info,{1,1,3}},
-     {ct_test_support_eh,tc_start,{dummy_SUITE,init_per_suite}},
-     {ct_test_support_eh,tc_done,{dummy_SUITE,init_per_suite,ok}},
-     {ct_test_support_eh,test_stats,{1,1,{1,0}}},
-     {ct_test_support_eh,tc_start,{dummy_SUITE,end_per_suite}},
-     {ct_test_support_eh,tc_done,{dummy_SUITE,end_per_suite,ok}},
-     {ct_test_support_eh,test_done,{'DEF','STOP_TIME'}},
-     {ct_test_support_eh,stop_logging,[]}
+     {?eh,start_logging,{'DEF','RUNDIR'}},
+     {?eh,test_start,{'DEF',{'START_TIME','LOGDIR'}}},
+     {?eh,start_info,{1,1,3}},
+     {?eh,tc_start,{ct_framework,error_in_suite}},
+     {?eh,tc_done,{ct_framework,error_in_suite,
+       {failed,{error,'bad_SUITE can not be compiled or loaded'}}}},
+     {?eh,tc_start,{dummy_SUITE,init_per_suite}},
+     {?eh,tc_done,{dummy_SUITE,init_per_suite,ok}},
+     {?eh,test_stats,{1,1,{1,0}}},
+     {?eh,tc_start,{dummy_SUITE,end_per_suite}},
+     {?eh,tc_done,{dummy_SUITE,end_per_suite,ok}},
+     {?eh,test_done,{'DEF','STOP_TIME'}},
+     {?eh,stop_logging,[]}
     ];
 
 test_events(ac_spec) ->
     [
-     {ct_test_support_eh,start_logging,{'DEF','RUNDIR'}},
-     {ct_test_support_eh,test_start,{'DEF',{'START_TIME','LOGDIR'}}},
-     {ct_test_support_eh,start_info,{1,1,3}},
-     {ct_test_support_eh,tc_start,{dummy_SUITE,init_per_suite}},
-     {ct_test_support_eh,tc_done,{dummy_SUITE,init_per_suite,ok}},
-     {ct_test_support_eh,test_stats,{1,1,{1,0}}},
-     {ct_test_support_eh,tc_start,{dummy_SUITE,end_per_suite}},
-     {ct_test_support_eh,tc_done,{dummy_SUITE,end_per_suite,ok}},
-     {ct_test_support_eh,test_done,{'DEF','STOP_TIME'}},
-     {ct_test_support_eh,stop_logging,[]}
+     {?eh,start_logging,{'DEF','RUNDIR'}},
+     {?eh,test_start,{'DEF',{'START_TIME','LOGDIR'}}},
+     {?eh,start_info,{1,1,3}},
+     {?eh,tc_start,{ct_framework,error_in_suite}},
+     {?eh,tc_done,{ct_framework,error_in_suite,
+       {failed,{error,'bad_SUITE can not be compiled or loaded'}}}},
+     {?eh,tc_start,{dummy_SUITE,init_per_suite}},
+     {?eh,tc_done,{dummy_SUITE,init_per_suite,ok}},
+     {?eh,test_stats,{1,1,{1,0}}},
+     {?eh,tc_start,{dummy_SUITE,end_per_suite}},
+     {?eh,tc_done,{dummy_SUITE,end_per_suite,ok}},
+     {?eh,test_done,{'DEF','STOP_TIME'}},
+     {?eh,stop_logging,[]}
     ].
diff --git a/lib/common_test/test/ct_config_SUITE_data/config/test/config_dynamic_SUITE.erl b/lib/common_test/test/ct_config_SUITE_data/config/test/config_dynamic_SUITE.erl
index c2e06d866f..ef1fd63905 100644
--- a/lib/common_test/test/ct_config_SUITE_data/config/test/config_dynamic_SUITE.erl
+++ b/lib/common_test/test/ct_config_SUITE_data/config/test/config_dynamic_SUITE.erl
@@ -35,7 +35,7 @@
 %% which will return the list with the following variables:
 %% localtime = the erlang:localtime() result in list [{date, Date}, {time, Time}]
 %% node = erlang:node() - can be compared in the testcase
-%% now = erlang:now() - easier to compare than localtime()
+%% now = os:timestamp() - easier to compare than localtime()
 %% config_server_pid - pid of the config server, should NOT change!
 %% config_server_vsn - .19
 %% config_server_iteration - a number of iteration config_server's loop done
diff --git a/lib/common_test/test/ct_config_SUITE_data/config/test/config_server.erl b/lib/common_test/test/ct_config_SUITE_data/config/test/config_server.erl
index 8463fea645..e65d6584b1 100644
--- a/lib/common_test/test/ct_config_SUITE_data/config/test/config_server.erl
+++ b/lib/common_test/test/ct_config_SUITE_data/config/test/config_server.erl
@@ -73,7 +73,7 @@ loop(Iteration)->
 		[{localtime, [{date, D}, {time, T}]},
 		 {node, erlang:node()},
 		 {config_server_iteration, Iteration},
-		 {now, erlang:now()},
+		 {now, os:timestamp()},
 		 {config_server_pid, self()},
 		 {config_server_vsn, ?vsn}],
 	    Config2 = if Iteration rem 2 == 0->
diff --git a/lib/common_test/test/ct_error_SUITE_data/error/test/timetrap_2_SUITE.erl b/lib/common_test/test/ct_error_SUITE_data/error/test/timetrap_2_SUITE.erl
index a77d06815e..d926fc55a4 100644
--- a/lib/common_test/test/ct_error_SUITE_data/error/test/timetrap_2_SUITE.erl
+++ b/lib/common_test/test/ct_error_SUITE_data/error/test/timetrap_2_SUITE.erl
@@ -141,12 +141,13 @@ tc3() ->
     [{timetrap,{seconds,2}}].
 
 tc3(_) ->
-    T0 = now(),
+    T0 = erlang:monotonic_time(),
     ct:timetrap(infinity),
     N = list_to_integer(ct:get_config(multiply)),
     ct:comment(io_lib:format("Sleeping for ~w sec...", [4*N])),
     ct:sleep(4000),
-    Diff = timer:now_diff(now(), T0),
+    T1 = erlang:monotonic_time(),
+    Diff = erlang:convert_time_unit(T1-T0, native, micro_seconds),
     if ((Diff < (N*4000000)) or (Diff > (N*4500000))) ->
 	    exit(not_expected);
        true ->
diff --git a/lib/common_test/test/ct_error_SUITE_data/error/test/verify_config.erl b/lib/common_test/test/ct_error_SUITE_data/error/test/verify_config.erl
index 446dd8bfdf..d5b3e0035a 100644
--- a/lib/common_test/test/ct_error_SUITE_data/error/test/verify_config.erl
+++ b/lib/common_test/test/ct_error_SUITE_data/error/test/verify_config.erl
@@ -81,7 +81,7 @@ init(Id, Opts) ->
 -spec id(Opts :: proplists:proplist()) ->
     Id :: term().
 id(Opts) ->
-    now().
+    os:timestamp().
 
 %% @doc Called before init_per_suite is called. Note that this callback is
 %% only called if the CTH is added before init_per_suite is run (eg. in a test
diff --git a/lib/common_test/test/ct_hooks_SUITE_data/cth/tests/ct_update_config_SUITE.erl b/lib/common_test/test/ct_hooks_SUITE_data/cth/tests/ct_update_config_SUITE.erl
index 3c1f5669e8..f8c8725602 100644
--- a/lib/common_test/test/ct_hooks_SUITE_data/cth/tests/ct_update_config_SUITE.erl
+++ b/lib/common_test/test/ct_hooks_SUITE_data/cth/tests/ct_update_config_SUITE.erl
@@ -26,21 +26,23 @@
 

 -include("ct.hrl").

 

+-define(now, os:timestamp()).

+

 %% Test server callback functions

 init_per_suite(Config) ->

-    [{init_per_suite,now()}|Config].

+    [{init_per_suite,?now}|Config].

 

 end_per_suite(_Config) ->

     ok.

 

 init_per_testcase(_TestCase, Config) ->

-    [{init_per_testcase,now()}|Config].

+    [{init_per_testcase,?now}|Config].

 

 end_per_testcase(_TestCase, _Config) ->

     ok.

 

 init_per_group(GroupName, Config) ->

-    [{init_per_group,now()}|Config].

+    [{init_per_group,?now}|Config].

 

 end_per_group(GroupName, Config) ->

     ok.

diff --git a/lib/common_test/test/ct_hooks_SUITE_data/cth/tests/empty_cth.erl b/lib/common_test/test/ct_hooks_SUITE_data/cth/tests/empty_cth.erl
index 77783fccf5..5f8eae1f70 100644
--- a/lib/common_test/test/ct_hooks_SUITE_data/cth/tests/empty_cth.erl
+++ b/lib/common_test/test/ct_hooks_SUITE_data/cth/tests/empty_cth.erl
@@ -87,7 +87,7 @@ id(Opts) ->
     gen_event:notify(?CT_EVMGR_REF, #event{ name = cth, node = node(),
 					    data = {?MODULE, id, [Opts]}}),
     ct:log("~w:id called", [?MODULE]),
-    now().
+    os:timestamp().
 
 %% @doc Called before init_per_suite is called. Note that this callback is
 %% only called if the CTH is added before init_per_suite is run (eg. in a test
diff --git a/lib/common_test/test/ct_hooks_SUITE_data/cth/tests/update_config_cth.erl b/lib/common_test/test/ct_hooks_SUITE_data/cth/tests/update_config_cth.erl
index 2ee0d7da9c..55a1b9a130 100644
--- a/lib/common_test/test/ct_hooks_SUITE_data/cth/tests/update_config_cth.erl
+++ b/lib/common_test/test/ct_hooks_SUITE_data/cth/tests/update_config_cth.erl
@@ -24,6 +24,7 @@
 -include_lib("common_test/src/ct_util.hrl").

 -include_lib("common_test/include/ct_event.hrl").

 

+-define(now, os:timestamp()).

 

 %% CT Hooks

 -compile(export_all).

@@ -33,44 +34,44 @@ init(Id, Opts) ->
 

 pre_init_per_suite(Suite, Config, State) ->

     empty_cth:pre_init_per_suite(Suite,Config,State),

-    {[{pre_init_per_suite,now()}|Config],State}.

+    {[{pre_init_per_suite,?now}|Config],State}.

 

 post_init_per_suite(Suite,Config,Return,State) ->

     empty_cth:post_init_per_suite(Suite,Config,Return,State),

-    {[{post_init_per_suite,now()}|Return],State}.

+    {[{post_init_per_suite,?now}|Return],State}.

 

 pre_end_per_suite(Suite,Config,State) ->

     empty_cth:pre_end_per_suite(Suite,Config,State),

-    {[{pre_end_per_suite,now()}|Config],State}.

+    {[{pre_end_per_suite,?now}|Config],State}.

 

 post_end_per_suite(Suite,Config,Return,State) ->

     empty_cth:post_end_per_suite(Suite,Config,Return,State),

-    NewConfig = [{post_end_per_suite,now()}|Config],

+    NewConfig = [{post_end_per_suite,?now}|Config],

     {NewConfig,NewConfig}.

 

 pre_init_per_group(Group,Config,State) ->

     empty_cth:pre_init_per_group(Group,Config,State),

-    {[{pre_init_per_group,now()}|Config],State}.

+    {[{pre_init_per_group,?now}|Config],State}.

 

 post_init_per_group(Group,Config,Return,State) ->

     empty_cth:post_init_per_group(Group,Config,Return,State),

-    {[{post_init_per_group,now()}|Return],State}.

+    {[{post_init_per_group,?now}|Return],State}.

 

 pre_end_per_group(Group,Config,State) ->

     empty_cth:pre_end_per_group(Group,Config,State),

-    {[{pre_end_per_group,now()}|Config],State}.

+    {[{pre_end_per_group,?now}|Config],State}.

 

 post_end_per_group(Group,Config,Return,State) ->

     empty_cth:post_end_per_group(Group,Config,Return,State),

-    {[{post_end_per_group,now()}|Config],State}.

+    {[{post_end_per_group,?now}|Config],State}.

 

 pre_init_per_testcase(TC,Config,State) ->

     empty_cth:pre_init_per_testcase(TC,Config,State),

-    {[{pre_init_per_testcase,now()}|Config],State}.

+    {[{pre_init_per_testcase,?now}|Config],State}.

 

 post_end_per_testcase(TC,Config,Return,State) ->

     empty_cth:post_end_per_testcase(TC,Config,Return,State),

-    {[{post_end_per_testcase,now()}|Config],State}.

+    {[{post_end_per_testcase,?now}|Config],State}.

 

 on_tc_fail(TC, Reason, State) ->

     empty_cth:on_tc_fail(TC,Reason,State).

diff --git a/lib/common_test/test/ct_netconfc_SUITE.erl b/lib/common_test/test/ct_netconfc_SUITE.erl
index c89a4cdabe..2959f77087 100644
--- a/lib/common_test/test/ct_netconfc_SUITE.erl
+++ b/lib/common_test/test/ct_netconfc_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2009-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2009-2014. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -63,7 +63,8 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() ->
     [
-     default
+     netconfc1_SUITE,
+     netconfc_remote_SUITE
     ].
 
 %%--------------------------------------------------------------------
@@ -72,14 +73,21 @@ all() ->
 
 %%%-----------------------------------------------------------------
 %%%
-default(Config) when is_list(Config) ->
+netconfc1_SUITE(Config) when is_list(Config) ->
     DataDir = ?config(data_dir, Config),
     Suite = filename:join(DataDir, "netconfc1_SUITE"),
     CfgFile = filename:join(DataDir, "netconfc1.cfg"),
     {Opts,ERPid} = setup([{suite,Suite},{config,CfgFile},
-			  {label,default}], Config),
+			  {label,netconfc1_SUITE}], Config),
 
-    ok = execute(default, Opts, ERPid, Config).
+    ok = execute(netconfc1_SUITE, Opts, ERPid, Config).
+
+netconfc_remote_SUITE(Config) when is_list(Config) ->
+    DataDir = ?config(data_dir, Config),
+    Suite = filename:join(DataDir, "netconfc_remote_SUITE"),
+    {Opts,ERPid} = setup([{suite,Suite},{label,netconfc_remote_SUITE}], Config),
+
+    ok = execute(netconfc_remote_SUITE, Opts, ERPid, Config).
 
 
 %%%-----------------------------------------------------------------
@@ -112,16 +120,15 @@ reformat(Events, EH) ->
 %%%-----------------------------------------------------------------
 %%% TEST EVENTS
 %%%-----------------------------------------------------------------
-events_to_check(default,Config) ->
-    {module,_} = code:load_abs(filename:join(?config(data_dir,Config),
-					     netconfc1_SUITE)),
-    TCs = netconfc1_SUITE:all(),
-    code:purge(netconfc1_SUITE),
-    code:delete(netconfc1_SUITE),
+events_to_check(Suite,Config) ->
+    {module,_} = code:load_abs(filename:join(?config(data_dir,Config),Suite)),
+    TCs = Suite:all(),
+    code:purge(Suite),
+    code:delete(Suite),
 
     OneTest =
 	[{?eh,start_logging,{'DEF','RUNDIR'}}] ++
-	[{?eh,tc_done,{netconfc1_SUITE,TC,ok}} || TC <- TCs] ++
+	[{?eh,tc_done,{Suite,TC,ok}} || TC <- TCs] ++
 	[{?eh,stop_logging,[]}],
 
     %% 2 tests (ct:run_test + script_start) is default
diff --git a/lib/common_test/test/ct_netconfc_SUITE_data/netconfc1_SUITE.erl b/lib/common_test/test/ct_netconfc_SUITE_data/netconfc1_SUITE.erl
index d01211b0c6..e26ed4089a 100644
--- a/lib/common_test/test/ct_netconfc_SUITE_data/netconfc1_SUITE.erl
+++ b/lib/common_test/test/ct_netconfc_SUITE_data/netconfc1_SUITE.erl
@@ -1,7 +1,7 @@
 %%--------------------------------------------------------------------
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2013. All Rights Reserved.
+%% Copyright Ericsson AB 2013-2014. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -30,25 +30,10 @@
 -module(netconfc1_SUITE).
 -include_lib("common_test/include/ct.hrl").
 -include_lib("common_test/src/ct_netconfc.hrl").
--include_lib("public_key/include/public_key.hrl").
+-include("netconfc_test_lib.hrl").
 
 -compile(export_all).
 
-%% Default timetrap timeout (set in init_per_testcase).
--define(default_timeout, ?t:minutes(1)).
-
--define(NS,ns).
--define(LOCALHOST, "127.0.0.1").
--define(SSH_PORT, 2060).
-
--define(DEFAULT_SSH_OPTS,[{ssh,?LOCALHOST},
-			  {port,?SSH_PORT},
-			  {user,"xxx"},
-			  {password,"xxx"}]).
--define(DEFAULT_SSH_OPTS(Dir), ?DEFAULT_SSH_OPTS++[{user_dir,Dir}]).
-
--define(ok,ok).
-
 suite() ->
     [{ct_hooks, [{cth_conn_log,
 		  [{ct_netconfc,[{log_type,html}, %will be overwritten by config
@@ -91,6 +76,7 @@ all() ->
 	     get_config,
 	     get_config_xpath,
 	     edit_config,
+	     edit_config_opt_params,
 	     copy_config,
 	     delete_config,
 	     lock,
@@ -136,8 +122,8 @@ end_per_testcase(_Case, Config) ->
 init_per_suite(Config) ->
     case catch {crypto:start(), ssh:start()} of
 	{ok, ok} ->
-	    {ok, _} =  get_id_keys(Config),
-	    make_dsa_files(Config),
+	    {ok, _} =  netconfc_test_lib:get_id_keys(Config),
+	    netconfc_test_lib:make_dsa_files(Config),
 	    Server = ?NS:start(?config(data_dir,Config)),
 	    [{server,Server}|Config];
 	_ ->
@@ -148,7 +134,7 @@ end_per_suite(Config) ->
     ?NS:stop(?config(server,Config)),
     ssh:stop(),
     crypto:stop(),
-    remove_id_keys(Config),
+    netconfc_test_lib:remove_id_keys(Config),
     Config.
 
 hello(Config) ->
@@ -415,6 +401,18 @@ edit_config(Config) ->
     ?ok = ct_netconfc:close_session(Client),
     ok.
 
+edit_config_opt_params(Config) ->
+    DataDir = ?config(data_dir,Config),
+    {ok,Client} = open_success(DataDir),
+    ?NS:expect_reply({'edit-config',{'default-operation',"none"}},ok),
+    ?ok = ct_netconfc:edit_config(Client,running,
+				  {server,[{xmlns,"myns"}],
+				   [{name,["myserver"]}]},
+				  [{'default-operation',["none"]}]),
+    ?NS:expect_do_reply('close-session',close,ok),
+    ?ok = ct_netconfc:close_session(Client),
+    ok.
+
 copy_config(Config) ->
     DataDir = ?config(data_dir,Config),
     {ok,Client} = open_success(DataDir),
@@ -1011,165 +1009,3 @@ pad(I) when I<10 ->
     "0"++integer_to_list(I);
 pad(I) ->
     integer_to_list(I).
-
-
-%%%-----------------------------------------------------------------
-%%% BEGIN SSH key management
-%% copy private keys to given dir from ~/.ssh
-get_id_keys(Config) ->
-    DstDir = ?config(priv_dir, Config),
-    SrcDir = filename:join(os:getenv("HOME"), ".ssh"),
-    RsaOk = copyfile(SrcDir, DstDir, "id_rsa"),
-    DsaOk = copyfile(SrcDir, DstDir, "id_dsa"),
-    case {RsaOk, DsaOk} of
-	{{ok, _}, {ok, _}} -> {ok, both};
-	{{ok, _}, _} -> {ok, rsa};
-	{_, {ok, _}} -> {ok, dsa};
-	{Error, _} -> Error
-    end.
-
-%% Remove later on. Use make_dsa_files instead.
-remove_id_keys(Config) ->
-    Dir = ?config(priv_dir, Config),
-    file:delete(filename:join(Dir, "id_rsa")),
-    file:delete(filename:join(Dir, "id_dsa")).
-
-
-make_dsa_files(Config) ->
-    make_dsa_files(Config, rfc4716_public_key).
-make_dsa_files(Config, Type) ->
-    {DSA, EncodedKey} = gen_dsa(128, 20),
-    PKey = DSA#'DSAPrivateKey'.y,
-    P = DSA#'DSAPrivateKey'.p,
-    Q = DSA#'DSAPrivateKey'.q,
-    G = DSA#'DSAPrivateKey'.g,
-    Dss = #'Dss-Parms'{p=P, q=Q, g=G},
-    {ok, Hostname} = inet:gethostname(),
-    {ok, {A, B, C, D}} = inet:getaddr(Hostname, inet),
-    IP = lists:concat([A, ".", B, ".", C, ".", D]),
-    Attributes = [], % Could be [{comment,"user@" ++ Hostname}],
-    HostNames = [{hostnames,[IP, IP]}],
-    PublicKey = [{{PKey, Dss}, Attributes}],
-    KnownHosts = [{{PKey, Dss}, HostNames}],
-
-    KnownHostsEnc = public_key:ssh_encode(KnownHosts, known_hosts),
-    KnownHosts = public_key:ssh_decode(KnownHostsEnc, known_hosts),
-
-    PublicKeyEnc = public_key:ssh_encode(PublicKey, Type),
-
-    SystemTmpDir = ?config(data_dir, Config),
-    filelib:ensure_dir(SystemTmpDir),
-    file:make_dir(SystemTmpDir),
-
-    DSAFile = filename:join(SystemTmpDir, "ssh_host_dsa_key.pub"),
-    file:delete(DSAFile),
-
-    DSAPrivateFile  = filename:join(SystemTmpDir, "ssh_host_dsa_key"),
-    file:delete(DSAPrivateFile),
-
-    KHFile = filename:join(SystemTmpDir, "known_hosts"),
-    file:delete(KHFile),
-
-    PemBin = public_key:pem_encode([EncodedKey]),
-
-    file:write_file(DSAFile, PublicKeyEnc),
-    file:write_file(KHFile, KnownHostsEnc),
-    file:write_file(DSAPrivateFile, PemBin),
-    ok.
-
-
-%%--------------------------------------------------------------------
-%% @doc Creates a dsa key (OBS: for testing only)
-%%   the sizes are in bytes
-%% @spec (::integer()) -> {::atom(), ::binary(), ::opaque()}
-%% @end
-%%--------------------------------------------------------------------
-gen_dsa(LSize,NSize) when is_integer(LSize), is_integer(NSize) ->
-    Key = gen_dsa2(LSize, NSize),
-    {Key, encode_key(Key)}.
-
-encode_key(Key = #'DSAPrivateKey'{}) ->
-    Der = public_key:der_encode('DSAPrivateKey', Key),
-    {'DSAPrivateKey', Der, not_encrypted}.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% DSA key generation  (OBS: for testing only)
-%% See http://en.wikipedia.org/wiki/Digital_Signature_Algorithm
-%% and the fips_186-3.pdf
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-gen_dsa2(LSize, NSize) ->
-    Q  = prime(NSize),  %% Choose N-bit prime Q
-    X0 = prime(LSize),
-    P0 = prime((LSize div 2) +1),
-    
-    %% Choose L-bit prime modulus P such that p-1 is a multiple of q.
-    case dsa_search(X0 div (2*Q*P0), P0, Q, 1000) of
-	error -> 
-	    gen_dsa2(LSize, NSize);
-	P ->	    
-	    G = crypto:mod_pow(2, (P-1) div Q, P), % Choose G a number whose multiplicative order modulo p is q.
-	    %%                 such that This may be done by setting g = h^(p-1)/q mod p, commonly h=2 is used.
-	    
-	    X = prime(20),               %% Choose x by some random method, where 0 < x < q.
-	    Y = crypto:mod_pow(G, X, P), %% Calculate y = g^x mod p.
-	    
-	    #'DSAPrivateKey'{version=0, p = P, q = Q, 
-			     g = crypto:bytes_to_integer(G), y = crypto:bytes_to_integer(Y), x = X}
-    end.
-    
-%% See fips_186-3.pdf
-dsa_search(T, P0, Q, Iter) when Iter > 0 ->
-    P = 2*T*Q*P0 + 1,
-    case is_prime(P, 50) of
-	true -> P;
-	false -> dsa_search(T+1, P0, Q, Iter-1)
-    end;
-dsa_search(_,_,_,_) -> 
-    error.
-
-
-%%%%%%% Crypto Math %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-prime(ByteSize) ->
-    Rand = odd_rand(ByteSize),
-    prime_odd(Rand, 0).
-
-prime_odd(Rand, N) ->
-    case is_prime(Rand, 50) of
-	true -> 
-	    Rand;
-	false -> 
-	    prime_odd(Rand+2, N+1)
-    end.
-
-%% see http://en.wikipedia.org/wiki/Fermat_primality_test
-is_prime(_, 0) -> true;
-is_prime(Candidate, Test) -> 
-    CoPrime = odd_rand(10000, Candidate),
-    Result = crypto:mod_pow(CoPrime, Candidate, Candidate) ,
-    is_prime(CoPrime, crypto:bytes_to_integer(Result), Candidate, Test).
-
-is_prime(CoPrime, CoPrime, Candidate, Test) ->
-    is_prime(Candidate, Test-1);
-is_prime(_,_,_,_) ->
-    false.
-
-odd_rand(Size) ->
-    Min = 1 bsl (Size*8-1),
-    Max = (1 bsl (Size*8))-1,
-    odd_rand(Min, Max).
-
-odd_rand(Min,Max) ->
-    Rand = crypto:rand_uniform(Min,Max),
-    case Rand rem 2 of
-	0 -> 
-	    Rand + 1;
-	_ -> 
-	    Rand
-    end.
-
-copyfile(SrcDir, DstDir, Fn) ->
-    file:copy(filename:join(SrcDir, Fn),
-	      filename:join(DstDir, Fn)).
-
-%%% END SSH key management
-%%%-----------------------------------------------------------------
diff --git a/lib/common_test/test/ct_netconfc_SUITE_data/netconfc_remote_SUITE.erl b/lib/common_test/test/ct_netconfc_SUITE_data/netconfc_remote_SUITE.erl
new file mode 100644
index 0000000000..7a44d148dd
--- /dev/null
+++ b/lib/common_test/test/ct_netconfc_SUITE_data/netconfc_remote_SUITE.erl
@@ -0,0 +1,147 @@
+%%--------------------------------------------------------------------
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2014. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%----------------------------------------------------------------------
+-module(netconfc_remote_SUITE).
+-include_lib("common_test/include/ct.hrl").
+-include_lib("common_test/src/ct_netconfc.hrl").
+-include("netconfc_test_lib.hrl").
+
+-compile(export_all).
+
+suite() ->
+    [{ct_hooks, [{cth_conn_log,[{ct_netconfc,[{log_type,html}]}]}]}].
+
+all() ->
+    case os:find_executable("ssh") of
+	false ->
+	    {skip, "SSH not installed on host"};
+	_ ->
+	    [remote_crash
+	    ]
+    end.
+
+groups() ->
+    [].
+
+init_per_group(_GroupName, Config) ->
+    Config.
+
+end_per_group(_GroupName, Config) ->
+    Config.
+
+init_per_testcase(Case, Config) ->
+    stop_node(Case),
+    Dog = test_server:timetrap(?default_timeout),
+    [{watchdog, Dog}|Config].
+
+end_per_testcase(Case, Config) ->
+    stop_node(Case),
+    Dog=?config(watchdog, Config),
+    test_server:timetrap_cancel(Dog),
+    ok.
+
+stop_node(Case) ->
+    {ok,Host} = inet:gethostname(),
+    Node = list_to_atom("nc_" ++ atom_to_list(Case)++ "@" ++ Host),
+    rpc:call(Node,erlang,halt,[]).
+
+
+init_per_suite(Config) ->
+    case {crypto:start(),ssh:start()} of
+	{ok,ok} ->
+	    {ok, _} =  netconfc_test_lib:get_id_keys(Config),
+	    netconfc_test_lib:make_dsa_files(Config),
+	    Config;
+	_ ->
+	    {skip, "Crypto and/or SSH could not be started locally!"}
+    end.
+
+end_per_suite(Config) ->
+    ssh:stop(),
+    crypto:stop(),
+    netconfc_test_lib:remove_id_keys(Config),
+    Config.
+
+%% This test case is related to seq12645
+%% Running the netconf server in a remote node, test that the client
+%% process terminates if the remote node goes down.
+remote_crash(Config) ->
+    {ok,Node} = ct_slave:start(nc_remote_crash),
+    Pa = filename:dirname(code:which(?NS)),
+    true = rpc:call(Node,code,add_patha,[Pa]),
+    
+    case {rpc:call(Node,crypto,start,[]),rpc:call(Node,ssh,start,[])} of
+	{ok,ok} ->
+	    Server = rpc:call(Node,?NS,start,[?config(data_dir,Config)]),
+	    remote_crash(Node,Config);
+	_ ->
+	    {skip, "Crypto and/or SSH could not be started remote!"}
+    end.
+
+remote_crash(Node,Config) ->
+    DataDir = ?config(data_dir,Config),
+    {ok,Client} = open_success(Node,DataDir),
+
+    ns(Node,expect_reply,[{'create-subscription',[stream]},ok]),
+    ?ok = ct_netconfc:create_subscription(Client),
+
+    true = erlang:is_process_alive(Client),
+    Ref = erlang:monitor(process,Client),
+    rpc:call(Node,erlang,halt,[]), % take the node down as brutally as possible
+    receive {'DOWN',Ref,process,Client,_} ->
+	    ok
+    after 10000 ->
+	    ct:fail(client_still_alive)
+    end.
+
+%%%-----------------------------------------------------------------
+
+break(_Config) ->
+    test_server:break("break test case").
+
+%%%-----------------------------------------------------------------
+%% Open a netconf session which is not specified in a config file
+open_success(Node,Dir) ->
+    open_success(Node,Dir,[]).
+
+%% Open a netconf session which is not specified in a config file, and
+%% give som extra options in addition to the test defaults.
+open_success(Node,Dir,ExtraOpts) when is_list(Dir), is_list(ExtraOpts) ->
+    ns(Node,hello,[1]), % tell server to send hello with session id 1
+    ns(Node,expect,[hello]), % tell server to expect a hello message from client
+    open(Dir,ExtraOpts);
+
+%% Open a named netconf session which is not specified in a config file
+open_success(Node,KeyOrName,Dir) when is_atom(KeyOrName), is_list(Dir) ->
+    ns(Node,hello,[1]),
+    ns(Node,expect,[hello]),
+    ct_netconfc:open(KeyOrName,?DEFAULT_SSH_OPTS(Dir)).
+
+open(Dir) ->
+    open(Dir,[]).
+open(Dir,ExtraOpts) ->
+    Opts = lists:ukeymerge(1,lists:keysort(1,ExtraOpts),
+			   lists:keysort(1,?DEFAULT_SSH_OPTS(Dir))),
+    ct_netconfc:open(Opts).
+
+%%%-----------------------------------------------------------------
+%%% Call server on remote node
+ns(Node,Func,Args) ->
+    rpc:call(Node,?NS,Func,Args).
+
diff --git a/lib/common_test/test/ct_netconfc_SUITE_data/netconfc_test_lib.erl b/lib/common_test/test/ct_netconfc_SUITE_data/netconfc_test_lib.erl
new file mode 100644
index 0000000000..e058bc7600
--- /dev/null
+++ b/lib/common_test/test/ct_netconfc_SUITE_data/netconfc_test_lib.erl
@@ -0,0 +1,166 @@
+-module(netconfc_test_lib).
+
+-export([get_id_keys/1, remove_id_keys/1, make_dsa_files/1]).
+-include_lib("common_test/include/ct.hrl").
+-include_lib("public_key/include/public_key.hrl").
+
+%%%-----------------------------------------------------------------
+%%% BEGIN SSH key management
+%% copy private keys to given dir from ~/.ssh
+get_id_keys(Config) ->
+    DstDir = ?config(priv_dir, Config),
+    SrcDir = filename:join(os:getenv("HOME"), ".ssh"),
+    RsaOk = copyfile(SrcDir, DstDir, "id_rsa"),
+    DsaOk = copyfile(SrcDir, DstDir, "id_dsa"),
+    case {RsaOk, DsaOk} of
+	{{ok, _}, {ok, _}} -> {ok, both};
+	{{ok, _}, _} -> {ok, rsa};
+	{_, {ok, _}} -> {ok, dsa};
+	{Error, _} -> Error
+    end.
+
+%% Remove later on. Use make_dsa_files instead.
+remove_id_keys(Config) ->
+    Dir = ?config(priv_dir, Config),
+    file:delete(filename:join(Dir, "id_rsa")),
+    file:delete(filename:join(Dir, "id_dsa")).
+
+
+make_dsa_files(Config) ->
+    make_dsa_files(Config, rfc4716_public_key).
+make_dsa_files(Config, Type) ->
+    {DSA, EncodedKey} = gen_dsa(128, 20),
+    PKey = DSA#'DSAPrivateKey'.y,
+    P = DSA#'DSAPrivateKey'.p,
+    Q = DSA#'DSAPrivateKey'.q,
+    G = DSA#'DSAPrivateKey'.g,
+    Dss = #'Dss-Parms'{p=P, q=Q, g=G},
+    {ok, Hostname} = inet:gethostname(),
+    {ok, {A, B, C, D}} = inet:getaddr(Hostname, inet),
+    IP = lists:concat([A, ".", B, ".", C, ".", D]),
+    Attributes = [], % Could be [{comment,"user@" ++ Hostname}],
+    HostNames = [{hostnames,[IP, IP]}],
+    PublicKey = [{{PKey, Dss}, Attributes}],
+    KnownHosts = [{{PKey, Dss}, HostNames}],
+
+    KnownHostsEnc = public_key:ssh_encode(KnownHosts, known_hosts),
+    KnownHosts = public_key:ssh_decode(KnownHostsEnc, known_hosts),
+
+    PublicKeyEnc = public_key:ssh_encode(PublicKey, Type),
+
+    SystemTmpDir = ?config(data_dir, Config),
+    filelib:ensure_dir(SystemTmpDir),
+    file:make_dir(SystemTmpDir),
+
+    DSAFile = filename:join(SystemTmpDir, "ssh_host_dsa_key.pub"),
+    file:delete(DSAFile),
+
+    DSAPrivateFile  = filename:join(SystemTmpDir, "ssh_host_dsa_key"),
+    file:delete(DSAPrivateFile),
+
+    KHFile = filename:join(SystemTmpDir, "known_hosts"),
+    file:delete(KHFile),
+
+    PemBin = public_key:pem_encode([EncodedKey]),
+
+    file:write_file(DSAFile, PublicKeyEnc),
+    file:write_file(KHFile, KnownHostsEnc),
+    file:write_file(DSAPrivateFile, PemBin),
+    ok.
+
+
+%%--------------------------------------------------------------------
+%% @doc Creates a dsa key (OBS: for testing only)
+%%   the sizes are in bytes
+%% @spec (::integer()) -> {::atom(), ::binary(), ::opaque()}
+%% @end
+%%--------------------------------------------------------------------
+gen_dsa(LSize,NSize) when is_integer(LSize), is_integer(NSize) ->
+    Key = gen_dsa2(LSize, NSize),
+    {Key, encode_key(Key)}.
+
+encode_key(Key = #'DSAPrivateKey'{}) ->
+    Der = public_key:der_encode('DSAPrivateKey', Key),
+    {'DSAPrivateKey', Der, not_encrypted}.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% DSA key generation  (OBS: for testing only)
+%% See http://en.wikipedia.org/wiki/Digital_Signature_Algorithm
+%% and the fips_186-3.pdf
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+gen_dsa2(LSize, NSize) ->
+    Q  = prime(NSize),  %% Choose N-bit prime Q
+    X0 = prime(LSize),
+    P0 = prime((LSize div 2) +1),
+    
+    %% Choose L-bit prime modulus P such that p-1 is a multiple of q.
+    case dsa_search(X0 div (2*Q*P0), P0, Q, 1000) of
+	error -> 
+	    gen_dsa2(LSize, NSize);
+	P ->	    
+	    G = crypto:mod_pow(2, (P-1) div Q, P), % Choose G a number whose multiplicative order modulo p is q.
+	    %%                 such that This may be done by setting g = h^(p-1)/q mod p, commonly h=2 is used.
+	    
+	    X = prime(20),               %% Choose x by some random method, where 0 < x < q.
+	    Y = crypto:mod_pow(G, X, P), %% Calculate y = g^x mod p.
+	    
+	    #'DSAPrivateKey'{version=0, p = P, q = Q, 
+			     g = crypto:bytes_to_integer(G), y = crypto:bytes_to_integer(Y), x = X}
+    end.
+    
+%% See fips_186-3.pdf
+dsa_search(T, P0, Q, Iter) when Iter > 0 ->
+    P = 2*T*Q*P0 + 1,
+    case is_prime(P, 50) of
+	true -> P;
+	false -> dsa_search(T+1, P0, Q, Iter-1)
+    end;
+dsa_search(_,_,_,_) -> 
+    error.
+
+
+%%%%%%% Crypto Math %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+prime(ByteSize) ->
+    Rand = odd_rand(ByteSize),
+    prime_odd(Rand, 0).
+
+prime_odd(Rand, N) ->
+    case is_prime(Rand, 50) of
+	true -> 
+	    Rand;
+	false -> 
+	    prime_odd(Rand+2, N+1)
+    end.
+
+%% see http://en.wikipedia.org/wiki/Fermat_primality_test
+is_prime(_, 0) -> true;
+is_prime(Candidate, Test) -> 
+    CoPrime = odd_rand(10000, Candidate),
+    Result = crypto:mod_pow(CoPrime, Candidate, Candidate) ,
+    is_prime(CoPrime, crypto:bytes_to_integer(Result), Candidate, Test).
+
+is_prime(CoPrime, CoPrime, Candidate, Test) ->
+    is_prime(Candidate, Test-1);
+is_prime(_,_,_,_) ->
+    false.
+
+odd_rand(Size) ->
+    Min = 1 bsl (Size*8-1),
+    Max = (1 bsl (Size*8))-1,
+    odd_rand(Min, Max).
+
+odd_rand(Min,Max) ->
+    Rand = crypto:rand_uniform(Min,Max),
+    case Rand rem 2 of
+	0 -> 
+	    Rand + 1;
+	_ -> 
+	    Rand
+    end.
+
+copyfile(SrcDir, DstDir, Fn) ->
+    file:copy(filename:join(SrcDir, Fn),
+	      filename:join(DstDir, Fn)).
+
+%%% END SSH key management
+%%%-----------------------------------------------------------------
diff --git a/lib/common_test/test/ct_netconfc_SUITE_data/netconfc_test_lib.hrl b/lib/common_test/test/ct_netconfc_SUITE_data/netconfc_test_lib.hrl
new file mode 100644
index 0000000000..dcaad5ba93
--- /dev/null
+++ b/lib/common_test/test/ct_netconfc_SUITE_data/netconfc_test_lib.hrl
@@ -0,0 +1,14 @@
+%% Default timetrap timeout (set in init_per_testcase).
+-define(default_timeout, ?t:minutes(1)).
+
+-define(NS,ns). % netconf server module
+-define(LOCALHOST, "127.0.0.1").
+-define(SSH_PORT, 2060).
+
+-define(DEFAULT_SSH_OPTS,[{ssh,?LOCALHOST},
+			  {port,?SSH_PORT},
+			  {user,"xxx"},
+			  {password,"xxx"}]).
+-define(DEFAULT_SSH_OPTS(Dir), ?DEFAULT_SSH_OPTS++[{user_dir,Dir}]).
+
+-define(ok,ok).
diff --git a/lib/common_test/test/ct_netconfc_SUITE_data/ns.erl b/lib/common_test/test/ct_netconfc_SUITE_data/ns.erl
index 27da67bd1d..e4bc396536 100644
--- a/lib/common_test/test/ct_netconfc_SUITE_data/ns.erl
+++ b/lib/common_test/test/ct_netconfc_SUITE_data/ns.erl
@@ -1,7 +1,7 @@
 %%--------------------------------------------------------------------
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2012-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2012-2014. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -382,6 +382,7 @@ event({startElement,_,Name,_,Attrs},[ignore,{se,Name,As}|Match]) ->
 event({startPrefixMapping,_,Ns},[{ns,Ns}|Match]) -> Match;
 event({startPrefixMapping,_,Ns},[ignore,{ns,Ns}|Match]) -> Match;
 event({endPrefixMapping,_},Match) -> Match;
+event({characters,Chs},[{characters,Chs}|Match]) -> Match;
 event({endElement,_,Name,_},[{ee,Name}|Match]) -> Match;
 event({endElement,_,Name,_},[ignore,{ee,Name}|Match]) -> Match;
 event(endDocument,Match) when Match==[]; Match==[ignore] -> ok;
@@ -471,14 +472,17 @@ capabilities(no_caps) ->
 %%% expect_do_reply/3.
 %%%
 %%% match(term()) -> [Match].
-%%% Match = ignore | {se,Name} | {se,Name,Attrs} | {ee,Name} | {ns,Namespace}
+%%% Match = ignore | {se,Name} | {se,Name,Attrs} | {ee,Name} |
+%%%         {ns,Namespace} | {characters,Chs}
 %%% Name = string()
+%%% Chs = string()
 %%% Attrs = [{atom(),string()}]
 %%% Namespace = string()
 %%%
 %%% 'se' means start element, 'ee' means end element - i.e. to match
 %%% an XML element you need one 'se' entry and one 'ee' entry with the
-%%% same name in the match list.
+%%% same name in the match list. 'characters' can be used for matching
+%%% character data (cdata) inside an element.
 match(hello) ->
     [ignore,{se,"hello"},ignore,{ee,"hello"},ignore];
 match('close-session') ->
@@ -487,6 +491,10 @@ match('close-session') ->
 match('edit-config') ->
     [ignore,{se,"rpc"},{se,"edit-config"},{se,"target"},ignore,{ee,"target"},
      {se,"config"},ignore,{ee,"config"},{ee,"edit-config"},{ee,"rpc"},ignore];
+match({'edit-config',{'default-operation',DO}}) ->
+    [ignore,{se,"rpc"},{se,"edit-config"},{se,"target"},ignore,{ee,"target"},
+     {se,"default-operation"},{characters,DO},{ee,"default-operation"},
+     {se,"config"},ignore,{ee,"config"},{ee,"edit-config"},{ee,"rpc"},ignore];
 match('get') ->
     match({get,subtree});
 match({'get',FilterType}) ->
diff --git a/lib/common_test/test/ct_test_server_if_1_SUITE.erl b/lib/common_test/test/ct_test_server_if_1_SUITE.erl
index b6ef3062d4..214cb60c0d 100644
--- a/lib/common_test/test/ct_test_server_if_1_SUITE.erl
+++ b/lib/common_test/test/ct_test_server_if_1_SUITE.erl
@@ -236,14 +236,13 @@ test_events(ts_if_1) ->
       {ts_if_2_SUITE,end_per_suite,
        {failed,{error,{suite0_failed,{exited,suite0_goes_boom}}}}}},
 
-
      {?eh,tc_start,{ct_framework,error_in_suite}},
-     {?eh,test_stats,{2,6,{4,7}}},
-
+     {?eh,tc_done,{ct_framework,error_in_suite,
+		   {failed,{error,'ts_if_3_SUITE:all/0 is missing'}}}},
 
      {?eh,tc_start,{ct_framework,error_in_suite}},
-     {?eh,test_stats,{2,7,{4,7}}},
-
+     {?eh,tc_done,{ct_framework,error_in_suite,
+		   {failed,{error,'Bad return value from ts_if_4_SUITE:all/0'}}}},
 
      {?eh,tc_start,{ts_if_5_SUITE,init_per_suite}},
      {?eh,tc_done,{ts_if_5_SUITE,init_per_suite,
@@ -252,7 +251,7 @@ test_events(ts_if_1) ->
      {?eh,tc_auto_skip,
       {ts_if_5_SUITE,my_test_case,
        {require_failed_in_suite0,{not_available,undef_variable}}}},
-     {?eh,test_stats,{2,7,{4,8}}},
+     {?eh,test_stats,{2,5,{4,8}}},
      {?eh,tc_auto_skip,
       {ts_if_5_SUITE,end_per_suite,
        {require_failed_in_suite0,{not_available,undef_variable}}}},
@@ -264,7 +263,7 @@ test_events(ts_if_1) ->
      {?eh,tc_auto_skip,
       {ts_if_6_SUITE,tc1,
        {failed,{error,{suite0_failed,{exited,suite0_byebye}}}}}},
-     {?eh,test_stats,{2,7,{4,9}}},
+     {?eh,test_stats,{2,5,{4,9}}},
      {?eh,tc_auto_skip,
       {ct_framework,end_per_suite,
        {failed,{error,{suite0_failed,{exited,suite0_byebye}}}}}},
@@ -274,13 +273,13 @@ test_events(ts_if_1) ->
      {?eh,tc_done,{ct_framework,init_per_suite,ok}},
      {?eh,tc_done,
       {ts_if_7_SUITE,tc1,{auto_skipped,{testcase0_failed,bad_return_value}}}},
-     {?eh,test_stats,{2,7,{4,10}}},
+     {?eh,test_stats,{2,5,{4,10}}},
      {?eh,tc_done,{ts_if_7_SUITE,
 		   {init_per_group,g1,[]},
 		   {auto_skipped,{group0_failed,bad_return_value}}}},
      {?eh,tc_auto_skip,
       {ts_if_7_SUITE,{tc2,g1},{group0_failed,bad_return_value}}},
-     {?eh,test_stats,{2,7,{4,11}}},
+     {?eh,test_stats,{2,5,{4,11}}},
      {?eh,tc_auto_skip,
       {ts_if_7_SUITE,{end_per_group,g1},{group0_failed,bad_return_value}}},
      
@@ -288,7 +287,7 @@ test_events(ts_if_1) ->
       {?eh,tc_done,{ts_if_7_SUITE,{init_per_group,g2,[]},ok}},
       {?eh,tc_done,{ts_if_7_SUITE,tc2,
 		    {auto_skipped,{testcase0_failed,bad_return_value}}}},
-      {?eh,test_stats,{2,7,{4,12}}},
+      {?eh,test_stats,{2,5,{4,12}}},
       {?eh,tc_start,{ts_if_7_SUITE,{end_per_group,g2,[]}}},
       {?eh,tc_done,{ts_if_7_SUITE,{end_per_group,g2,[]},ok}}],
      
@@ -300,17 +299,17 @@ test_events(ts_if_1) ->
      {?eh,tc_done,{ct_framework,init_per_suite,ok}},
      {?eh,tc_start,{ts_if_8_SUITE,tc1}},
      {?eh,tc_done,{ts_if_8_SUITE,tc1,{failed,{error,failed_on_purpose}}}},
-     {?eh,test_stats,{2,8,{4,12}}},
+     {?eh,test_stats,{2,6,{4,12}}},
      {?eh,tc_start,{ct_framework,end_per_suite}},
      {?eh,tc_done,{ct_framework,end_per_suite,ok}},
      
      
      {?eh,tc_user_skip,{skipped_by_spec_1_SUITE,all,"should be skipped"}},
-     {?eh,test_stats,{2,8,{5,12}}},
+     {?eh,test_stats,{2,6,{5,12}}},
      {?eh,tc_start,{skipped_by_spec_2_SUITE,init_per_suite}},
      {?eh,tc_done,{skipped_by_spec_2_SUITE,init_per_suite,ok}},
      {?eh,tc_user_skip,{skipped_by_spec_2_SUITE,tc1,"should be skipped"}},
-     {?eh,test_stats,{2,8,{6,12}}},
+     {?eh,test_stats,{2,6,{6,12}}},
      {?eh,tc_start,{skipped_by_spec_2_SUITE,end_per_suite}},
      {?eh,tc_done,{skipped_by_spec_2_SUITE,end_per_suite,ok}},
      
diff --git a/lib/common_test/test/ct_test_support.erl b/lib/common_test/test/ct_test_support.erl
index 6abca08452..ffef8187f3 100644
--- a/lib/common_test/test/ct_test_support.erl
+++ b/lib/common_test/test/ct_test_support.erl
@@ -287,10 +287,13 @@ run_ct_run_test(Opts,Config) ->
     Level = proplists:get_value(trace_level, Config),
     test_server:format(Level, "~n[RUN #1] Calling ct:run_test(~p) on ~p~n",
 		       [Opts, CTNode]),
-    T0 = now(),
+    
+    T0 = erlang:monotonic_time(),
     CtRunTestResult = rpc:call(CTNode, ct, run_test, [Opts]),
+    T1 = erlang:monotonic_time(),
+    Elapsed = erlang:convert_time_unit(T1-T0, native, milli_seconds),
     test_server:format(Level, "~n[RUN #1] Got return value ~p after ~p ms~n",
-		       [CtRunTestResult,trunc(timer:now_diff(now(), T0)/1000)]),
+		       [CtRunTestResult,Elapsed]),
     case rpc:call(CTNode, erlang, whereis, [ct_util_server]) of
 	undefined ->
 	    ok;
@@ -313,10 +316,12 @@ run_ct_script_start(Opts, Config) ->
 	     [common_test, run_test_start_opts, Opts1]),
     test_server:format(Level, "[RUN #2] Calling ct_run:script_start() on ~p~n",
 		       [CTNode]),
-    T0 = now(),
+    T0 = erlang:monotonic_time(),
     ExitStatus = rpc:call(CTNode, ct_run, script_start, []),
+    T1 = erlang:monotonic_time(),
+    Elapsed = erlang:convert_time_unit(T1-T0, native, milli_seconds),
     test_server:format(Level, "[RUN #2] Got exit status value ~p after ~p ms~n",
-		       [ExitStatus,trunc(timer:now_diff(now(), T0)/1000)]),
+		       [ExitStatus,Elapsed]),
     ExitStatus.
 
 check_result({_Ok,Failed,{_UserSkipped,_AutoSkipped}},1,_Opts)
@@ -408,7 +413,7 @@ ct_rpc({M,F,A}, Config) ->
 %%%-----------------------------------------------------------------
 %%% random_error/1
 random_error(Config) when is_list(Config) ->
-    random:seed(now()),
+    random:seed(os:timestamp()),
     Gen = fun(0,_) -> ok; (N,Fun) -> Fun(N-1, Fun) end,
     Gen(random:uniform(100), Gen),
 
@@ -1350,12 +1355,7 @@ delete_old_logs(_, Config) ->
 
 delete_dirs(LogDir) ->
     Now = calendar:datetime_to_gregorian_seconds(calendar:local_time()),
-    SaveTime = case os:getenv("CT_SAVE_OLD_LOGS") of
-		   false ->
-		       28800;
-		   SaveTime0 ->
-		       list_to_integer(SaveTime0)
-	       end,
+    SaveTime = list_to_integer(os:getenv("CT_SAVE_OLD_LOGS", "28800")),
     Deadline = Now - SaveTime,
     Dirs = filelib:wildcard(filename:join(LogDir,"ct_run*")),
     Dirs2Del =
diff --git a/lib/common_test/test/ct_testspec_3_SUITE_data/tests1/t11_SUITE.erl b/lib/common_test/test/ct_testspec_3_SUITE_data/tests1/t11_SUITE.erl
index b8216c3596..cfc6fa93d7 100644
--- a/lib/common_test/test/ct_testspec_3_SUITE_data/tests1/t11_SUITE.erl
+++ b/lib/common_test/test/ct_testspec_3_SUITE_data/tests1/t11_SUITE.erl
@@ -41,8 +41,12 @@ suite() ->
 %% @end
 %%--------------------------------------------------------------------
 init_per_suite(Config) ->
+
+    TCName = ct:get_config(tcname),
+    CfgFiles = ct:get_config(file,undefined,[all]),
+
     %% verify that expected config file can be read
-    case {ct:get_config(tcname),ct:get_config(file,undefined,[all])} of
+    case {TCName,CfgFiles} of
 	{start_separate,[cfg11]} -> ok;
 	{start_join,[cfg11,cfg21]} -> ok;
 	{incl_separate1,[cfg11]} -> ok;
@@ -56,6 +60,28 @@ init_per_suite(Config) ->
 	_ -> ok
 
     end,
+
+    %% test the get_testspec_terms functionality
+    if CfgFiles /= undefined ->
+	    TSTerms = case ct:get_testspec_terms() of
+			  undefined -> exit('testspec should not be undefined');
+			  Result -> Result
+		      end,
+	    true = lists:keymember(config, 1, TSTerms),
+	    {config,TSCfgFiles} = ct:get_testspec_terms(config),
+	    [{config,TSCfgFiles},{tests,Tests}] = 
+		ct:get_testspec_terms([config,tests]),
+	    CfgNames = [list_to_atom(filename:basename(TSCfgFile)) ||
+			   {Node,TSCfgFile} <- TSCfgFiles, Node == node()],
+	    true = (length(CfgNames) == length(CfgFiles)),
+	    [true = lists:member(CfgName,CfgFiles) || CfgName <- CfgNames],
+	    true = lists:any(fun({{_Node,_Dir},Suites}) ->
+				     lists:keymember(?MODULE, 1, Suites)
+			     end, Tests);
+       true ->
+	    ok
+    end,
+
     Config.
 
 %%--------------------------------------------------------------------
diff --git a/lib/common_test/test/ct_testspec_3_SUITE_data/tests1/t12_SUITE.erl b/lib/common_test/test/ct_testspec_3_SUITE_data/tests1/t12_SUITE.erl
index 7c51aca246..c3faebbd64 100644
--- a/lib/common_test/test/ct_testspec_3_SUITE_data/tests1/t12_SUITE.erl
+++ b/lib/common_test/test/ct_testspec_3_SUITE_data/tests1/t12_SUITE.erl
@@ -55,7 +55,7 @@ init_per_suite(Config) ->
 	{incl_both2,[cfg11,cfg12,cfg21]} -> ok;
 	{incl_both2,[cfg21]} -> ok;
 	_ -> ok
-    end,
+    end, 
     Config.
 
 %%--------------------------------------------------------------------
diff --git a/lib/common_test/test/ct_testspec_3_SUITE_data/tests2/t21_SUITE.erl b/lib/common_test/test/ct_testspec_3_SUITE_data/tests2/t21_SUITE.erl
index 36c1b4279b..e189b168c7 100644
--- a/lib/common_test/test/ct_testspec_3_SUITE_data/tests2/t21_SUITE.erl
+++ b/lib/common_test/test/ct_testspec_3_SUITE_data/tests2/t21_SUITE.erl
@@ -41,8 +41,11 @@ suite() ->
 %% @end
 %%--------------------------------------------------------------------
 init_per_suite(Config) ->
+    TCName = ct:get_config(tcname),
+    CfgFiles = ct:get_config(file,undefined,[all]),
+
     %% verify that expected config file can be read
-    case {ct:get_config(tcname),ct:get_config(file,undefined,[all])} of
+    case {TCName,CfgFiles} of 
 	{start_separate,[cfg11]} -> ok;
 	{start_join,[cfg11,cfg21]} -> ok;
 	{incl_separate1,[cfg11]} -> ok;
@@ -55,6 +58,28 @@ init_per_suite(Config) ->
 	{incl_both2,[cfg11]} -> ok;
 	_ -> ok
     end,
+
+     %% test the get_testspec_terms functionality
+    if CfgFiles /= undefined ->
+	    TSTerms = case ct:get_testspec_terms() of
+			  undefined -> exit('testspec should not be undefined');
+			  Result -> Result
+		      end,
+	    true = lists:keymember(config, 1, TSTerms),
+	    {config,TSCfgFiles} = ct:get_testspec_terms(config),
+	    [{config,TSCfgFiles},{tests,Tests}] = 
+		ct:get_testspec_terms([config,tests]),
+	    CfgNames = [list_to_atom(filename:basename(TSCfgFile)) ||
+			   {Node,TSCfgFile} <- TSCfgFiles, Node == node()],
+	    true = (length(CfgNames) == length(CfgFiles)),
+	    [true = lists:member(CfgName,CfgFiles) || CfgName <- CfgNames],
+	    true = lists:any(fun({{_Node,_Dir},Suites}) ->
+				     lists:keymember(?MODULE, 1, Suites)
+			     end, Tests);
+       true ->
+	    ok
+    end,
+
     Config.
 
 %%--------------------------------------------------------------------
diff --git a/lib/common_test/test/telnet_server.erl b/lib/common_test/test/telnet_server.erl
index 2db5a9bc44..107d98d72c 100644
--- a/lib/common_test/test/telnet_server.erl
+++ b/lib/common_test/test/telnet_server.erl
@@ -290,10 +290,10 @@ send(Data,State) ->
     
 send_loop(T,Data,State) ->
     dbg("Server sending ~p in loop for ~w ms...~n",[Data,T]),
-    send_loop(now(),T,Data,State).
+    send_loop(os:timestamp(),T,Data,State).
 
 send_loop(T0,T,Data,State) ->
-    ElapsedMS = trunc(timer:now_diff(now(),T0)/1000),
+    ElapsedMS = trunc(timer:now_diff(os:timestamp(),T0)/1000),
     if ElapsedMS >= T ->
 	    ok;
        true ->
@@ -320,7 +320,7 @@ dbg(_F,_A) ->
     io:format("[telnet_server, ~s]\n" ++ _F,[TS|_A]).
 
 timestamp() ->
-    {MS,S,US} = now(),
+    {MS,S,US} = os:timestamp(),
     {{Year,Month,Day}, {Hour,Min,Sec}} =
         calendar:now_to_local_time({MS,S,US}),
     MilliSec = trunc(US/1000),
diff --git a/lib/common_test/vsn.mk b/lib/common_test/vsn.mk
index e2d921729c..ff2bd20ab3 100644
--- a/lib/common_test/vsn.mk
+++ b/lib/common_test/vsn.mk
@@ -1 +1 @@
-COMMON_TEST_VSN = 1.10.1
+COMMON_TEST_VSN = 1.11
diff --git a/lib/compiler/doc/src/compile.xml b/lib/compiler/doc/src/compile.xml
index 5fccdcdcb5..a271729c82 100644
--- a/lib/compiler/doc/src/compile.xml
+++ b/lib/compiler/doc/src/compile.xml
@@ -32,15 +32,15 @@
   <modulesummary>Erlang Compiler</modulesummary>
   <description>
     <p>This module provides an interface to the standard Erlang
-      compiler. It can generate either a new file which contains
-      the object code, or return a binary which can be loaded directly.
+      compiler. It can generate either a new file, which contains
+      the object code, or return a binary, which can be loaded directly.
     </p>
   </description>
 
   <funcs>
     <func>
       <name>file(File)</name>
-      <fsummary>Compile a file</fsummary>
+      <fsummary>Compiles a file.</fsummary>
       <desc>
         <p>Is the same as
 	  <c>file(File, [verbose,report_errors,report_warnings])</c>.
@@ -50,7 +50,7 @@
 
     <func>
       <name>file(File, Options) -> CompRet</name>
-      <fsummary>Compile a file</fsummary>
+      <fsummary>Compiles a file.</fsummary>
       <type>
         <v>CompRet = ModRet | BinRet | ErrRet</v>
         <v>ModRet = {ok,ModuleName} | {ok,ModuleName,Warnings}</v>
@@ -64,39 +64,38 @@
 
         <p>Returns <c>{ok,ModuleName}</c> if successful, or <c>error</c>
 	  if there are errors. An object code file is created if
-	  the compilation succeeds with no errors. It is considered
+	  the compilation succeeds without errors. It is considered
 	  to be an error if the module name in the source code is
 	  not the same as the basename of the output file.</p>
 
-        <p><marker id="type-option"/>Here follows first all elements of <c>Options</c> that in
-	  some way control the behavior of the compiler.</p>
+        <p><marker id="type-option"/>Available options:</p>
         <taglist>
           <tag><c>basic_validation</c></tag>
           <item>
-            <p>This option is fast way to test whether a module will
-	      compile successfully (mainly useful for code generators
-              that want to verify the code they emit). No code will
+            <p>This option is a fast way to test whether a module will
+	      compile successfully. This is useful for code generators
+              that want to verify the code that they emit. No code is
 	      generated. If warnings are enabled, warnings generated by
 	      the <c>erl_lint</c> module (such as warnings for unused
-	      variables and functions) will be returned too.</p>
+	      variables and functions) are also returned.</p>
 
-            <p>Use the <c>strong_validation</c> option to generate all
+            <p>Use option <c>strong_validation</c> to generate all
 	      warnings that the compiler would generate.</p>
           </item>
 
           <tag><c>strong_validation</c></tag>
           <item>
-            <p>Similar to the <c>basic_validation</c> option, no code
-	      will be generated, but more compiler passes will be run
-	      to ensure also warnings generated by the optimization
-	      passes are generated (such as clauses that will not match
+            <p>Similar to option <c>basic_validation</c>. No code
+	      is generated, but more compiler passes are run
+	      to ensure that warnings generated by the optimization
+	      passes are generated (such as clauses that will not match,
 	      or expressions that are guaranteed to fail with an
-	      exception at run-time).</p>
+	      exception at runtime).</p>
           </item>
 
           <tag><c>binary</c></tag>
           <item>
-            <p>Causes the compiler to return the object code in a
+            <p>The compiler returns the object code in a
               binary instead of creating an object file. If successful,
               the compiler returns <c>{ok,ModuleName,Binary}</c>.</p>
           </item>
@@ -105,7 +104,9 @@
           <item>
             <p>The compiler will emit informational warnings about binary
 	    matching optimizations (both successful and unsuccessful).
-	    See the <em>Efficiency Guide</em> for further information.</p>
+	    For more information, see the section about
+	    <seealso marker="doc/efficiency_guide:binaryhandling#bin_opt_info">bin_opt_info</seealso>
+	    in the Efficiency Guide.</p>
           </item>
 
           <tag><c>compressed</c></tag>
@@ -117,20 +118,19 @@
           <tag><c>debug_info</c></tag>
           <item>
             <marker id="debug_info"></marker>
-            <p>Include debug information in the form of abstract code
+            <p>Includes debug information in the form of abstract code
               (see
               <seealso marker="erts:absform">The Abstract Format</seealso>
               in ERTS User's Guide) in the compiled beam module. Tools
-	      such as Debugger, Xref and Cover require the debug
-              information to be included.</p>
+	      such as <c>Debugger</c>, <c>Xref</c>, and <c>Cover</c> require 
+	      the debug information to be included.</p>
 
             <p><em>Warning</em>: Source code can be reconstructed from
               the debug information. Use encrypted debug information
-              (see below) to prevent this.</p>
+              (<c>encrypt_debug_info</c>) to prevent this.</p>
 
-            <p>See
-              <seealso marker="stdlib:beam_lib#debug_info">beam_lib(3)</seealso>
-              for details.</p>
+            <p>For details, see
+              <seealso marker="stdlib:beam_lib#debug_info">beam_lib(3)</seealso>.</p>
           </item>
 
           <tag><c>{debug_info_key,KeyString}</c></tag>
@@ -138,65 +138,61 @@
           <tag><c>{debug_info_key,{Mode,KeyString}}</c></tag>
           <item>
             <marker id="debug_info_key"></marker>
-            <p>Include debug information, but encrypt it, so that it
+            <p>Includes debug information, but encrypts it so that it
               cannot be accessed without supplying the key. (To give
-              the <c>debug_info</c> option as well is allowed, but is
+              option <c>debug_info</c> as well is allowed, but
               not necessary.) Using this option is a good way to always
               have the debug information available during testing, yet
-              protect the source code.</p>
+              protecting the source code.</p>
             <p><c>Mode</c> is the type of crypto algorithm to be used
-              for encrypting the debug information. The default type --
-              and currently the only type -- is <c>des3_cbc</c>.</p>
-            <p>See
-              <seealso marker="stdlib:beam_lib#debug_info">beam_lib(3)</seealso>
-              for details.</p>
+              for encrypting the debug information. The default
+              (and currently the only) type is <c>des3_cbc</c>.</p>
+            <p>For details, see
+              <seealso marker="stdlib:beam_lib#debug_info">beam_lib(3)</seealso>.</p>
           </item>
 
           <tag><c>encrypt_debug_info</c></tag>
           <item>
             <marker id="encrypt_debug_info"></marker>
-            <p>Like the <c>debug_info_key</c> option above, except that
-	      the key will be read from an <c>.erlang.crypt</c> file.
+            <p>Similar to the <c>debug_info_key</c> option, but
+	      the key is read from an <c>.erlang.crypt</c> file.
 	    </p>
 
-	    <p>See
-              <seealso marker="stdlib:beam_lib#debug_info">beam_lib(3)</seealso>
-              for details.</p>
+	    <p>For details, see
+              <seealso marker="stdlib:beam_lib#debug_info">beam_lib(3)</seealso>.</p>
           </item>
 
           <tag><c>makedep</c></tag>
           <item>
-            <p>Produce a Makefile rule to track headers dependencies.
+            <p>Produces a Makefile rule to track headers dependencies.
               No object file is produced.
             </p>
             <p>By default, this rule is written to
-              <c><![CDATA[<File>.Pbeam]]></c>. However, if the option
+              <c><![CDATA[<File>.Pbeam]]></c>. However, if option
                 <c>binary</c> is set, nothing is written and the rule is
                 returned in <c>Binary</c>.
             </p>
-            <p>For instance, if one has the following module:
+            <p>For example, if you have the following module:
             </p>
             <code>
 -module(module).
 
 -include_lib("eunit/include/eunit.hrl").
--include("header.hrl").
-            </code>
-            <p>Here is the Makefile rule generated by this option:
+-include("header.hrl").</code>
+            <p>The Makefile rule generated by this option looks as follows:
             </p>
             <code>
 module.beam: module.erl \
   /usr/local/lib/erlang/lib/eunit/include/eunit.hrl \
-  header.hrl
-            </code>
+  header.hrl</code>
           </item>
 
           <tag><c>{makedep_output, Output}</c></tag>
           <item>
-            <p>Write generated rule(s) to <c>Output</c> instead of the
+            <p>Writes generated rules to <c>Output</c> instead of the
               default <c><![CDATA[<File>.Pbeam]]></c>. <c>Output</c>
               can be a filename or an <c>io_device()</c>. To write to
-              stdout, use <c>standard_io</c>. However if <c>binary</c>
+              stdout, use <c>standard_io</c>. However, if <c>binary</c>
               is set, nothing is written to <c>Output</c> and the
               result is returned to the caller with
               <c>{ok, ModuleName, Binary}</c>.
@@ -205,7 +201,7 @@ module.beam: module.erl \
 
           <tag><c>{makedep_target, Target}</c></tag>
           <item>
-            <p>Change the name of the rule emitted to <c>Target</c>.
+            <p>Changes the name of the rule emitted to <c>Target</c>.
             </p>
           </item>
 
@@ -217,20 +213,20 @@ module.beam: module.erl \
 
           <tag><c>makedep_add_missing</c></tag>
           <item>
-            <p>Consider missing headers as generated files and add them to the
+            <p>Considers missing headers as generated files and adds them to the
               dependencies.
             </p>
           </item>
 
           <tag><c>makedep_phony</c></tag>
           <item>
-            <p>Add a phony target for each dependency.
+            <p>Adds a phony target for each dependency.
             </p>
           </item>
 
           <tag><c>'P'</c></tag>
           <item>
-            <p>Produces a listing of the parsed code after preprocessing
+            <p>Produces a listing of the parsed code, after preprocessing
 	      and parse transforms, in the file
 	      <c><![CDATA[<File>.P]]></c>. No object file is produced.
 	    </p>
@@ -238,7 +234,7 @@ module.beam: module.erl \
 
           <tag><c>'E'</c></tag>
           <item>
-            <p>Produces a listing of the code after all source code
+            <p>Produces a listing of the code, after all source code
 	      transformations have been performed, in the file
 	      <c><![CDATA[<File>.E]]></c>. No object file is produced.
 	    </p>
@@ -258,21 +254,21 @@ module.beam: module.erl \
 
           <tag><c>report</c></tag>
           <item>
-            <p>This is a short form for both <c>report_errors</c> and
+            <p>A short form for both <c>report_errors</c> and
               <c>report_warnings</c>.</p>
           </item>
 
           <tag><c>return_errors</c></tag>
           <item>
-            <p>If this flag is set, then
+            <p>If this flag is set,
 	      <c>{error,ErrorList,WarningList}</c> is returned when
 	      there are errors.</p>
           </item>
 
           <tag><c>return_warnings</c></tag>
           <item>
-            <p>If this flag is set, then an extra field containing
-              <c>WarningList</c> is added to the tuples returned on
+            <p>If this flag is set, an extra field, containing
+              <c>WarningList</c>, is added to the tuples returned on
               success.</p>
           </item>
 
@@ -284,13 +280,13 @@ module.beam: module.erl \
 
           <tag><c>return</c></tag>
           <item>
-            <p>This is a short form for both <c>return_errors</c> and
+            <p>A short form for both <c>return_errors</c> and
               <c>return_warnings</c>.</p>
           </item>
 
 	  <tag><c>verbose</c></tag>
           <item>
-            <p>Causes more verbose information from the compiler
+            <p>Causes more verbose information from the compiler,
               describing what it is doing.</p>
           </item>
 
@@ -314,7 +310,7 @@ module.beam: module.erl \
 
 	  <tag><c>{i,Dir}</c></tag>
           <item>
-            <p>Add <c>Dir</c> to the list of directories to be searched
+            <p>Adds <c>Dir</c> to the list of directories to be searched
               when including a file. When encountering an
 	      <c>-include</c> or <c>-include_lib</c> directive,
 	      the compiler searches for header files in the following
@@ -322,14 +318,14 @@ module.beam: module.erl \
             <list type="ordered">
               <item>
                 <p><c>"."</c>, the current working directory of
-		  the file server;</p>
+		  the file server</p>
               </item>
               <item>
-                <p>the base name of the compiled file;</p>
+                <p>The base name of the compiled file</p>
               </item>
               <item>
-                <p>the directories specified using the <c>i</c> option.
-                  The directory specified last is searched first.</p>
+                <p>The directories specified using option <c>i</c>;
+                  the directory specified last is searched first</p>
               </item>
             </list>
           </item>
@@ -353,15 +349,15 @@ module.beam: module.erl \
 	  <tag><c>from_asm</c></tag>
           <item>
             <p>The input file is expected to be assembler code (default
-	      file suffix ".S"). Note that the format of assembler files
-              is not documented, and may change between releases.</p>
+	      file suffix ".S"). Notice that the format of assembler files
+              is not documented, and can change between releases.</p>
           </item>
 
 	  <tag><c>from_core</c></tag>
           <item>
             <p>The input file is expected to be core code (default
-	      file suffix ".core"). Note that the format of core files
-              is not documented, and may change between releases.</p>
+	      file suffix ".core"). Notice that the format of core files
+              is not documented, and can change between releases.</p>
           </item>
 
           <tag><c>no_strict_record_tests</c></tag>
@@ -369,9 +365,9 @@ module.beam: module.erl \
             <p>This option is not recommended.</p>
 
 	    <p>By default, the generated code for
-	      the <c>Record#record_tag.field</c> operation verifies that
-	      the tuple <c>Record</c> is of the correct size for
-	      the record and that the first element is the tag
+	      operation <c>Record#record_tag.field</c> verifies that
+	      the tuple <c>Record</c> has the correct size for
+	      the record, and that the first element is the tag
 	      <c>record_tag</c>. Use this option to omit
 	      the verification code.</p>
           </item>
@@ -390,79 +386,87 @@ module.beam: module.erl \
           <tag><c>{no_auto_import,[{F,A}, ...]}</c></tag>
           <item>
 	  <p>Makes the function <c>F/A</c> no longer being
-          auto-imported from the module <c>erlang</c>, which resolves
-          BIF name clashes. This option has to be used to resolve name
-          clashes with BIFs auto-imported before R14A, if one wants to
+          auto-imported from the <c>erlang</c> module, which resolves
+          BIF name clashes. This option must be used to resolve name
+          clashes with BIFs auto-imported before R14A, if it is needed to
           call the local function with the same name as an
           auto-imported BIF without module prefix.</p>
 	  <note>
-	  <p>From R14A and forward, the compiler resolves calls
+	  <p>As from R14A and forward, the compiler resolves calls
 	  without module prefix to local or imported functions before
-	  trying auto-imported BIFs. If the BIF is to be
+	  trying with auto-imported BIFs. If the BIF is to be
 	  called, use the <c>erlang</c> module prefix in the call, not
-	  <c>{ no_auto_import,[{F,A}, ...]}</c></p>
+	  <c>{ no_auto_import,[{F,A}, ...]}</c>.</p>
 	  </note>
 	  <p>If this option is written in the source code, as a 
 	  <c>-compile</c> directive, the syntax <c>F/A</c> can be used instead 
-	  of <c>{F,A}</c>. Example:</p>
+	  of <c>{F,A}</c>, for example:</p>
 	  <code>-compile({no_auto_import,[error/1]}).</code>
 	  </item>
 
           <tag><c>no_auto_import</c></tag>
           <item>
-            <p>Do not auto import any functions from the module <c>erlang</c>.</p>
+            <p>Do not auto-import any functions from <c>erlang</c> module.</p>
           </item>
 
           <tag><c>no_line_info</c></tag>
 
           <item>
-            <p>Omit line number information in order to produce a slightly
+            <p>Omits line number information to produce a slightly
 	      smaller output file.
 	    </p>
           </item>
 
         </taglist>
 
-        <p>If warnings are turned on (the <c>report_warnings</c> option
-          described above), the following options control what type of
-          warnings that will be generated.
+        <p>If warnings are turned on (option <c>report_warnings</c>
+          described earlier), the following options control what type of
+          warnings that are generated.
 	  <marker id="erl_lint_options"></marker>
-          With the exception of <c>{warn_format,Verbosity}</c> all
-	  options below have two forms; one <c>warn_xxx</c> form to
-	  turn on the warning and one <c>nowarn_xxx</c> form to turn off
-	  the warning. In the description that follows, the form that
-	  is used to change the default value is listed.</p>
+          Except from <c>{warn_format,Verbosity}</c>, the following options 
+	have two forms:</p>
+	  <list type="bulleted">
+	    <item>A <c>warn_xxx</c> form, to turn on the warning.</item>
+	    <item>A <c>nowarn_xxx</c> form, to turn off the warning.</item>
+	  </list>
+	  <p>In the descriptions that follow, the form that is used to change 
+	  the default value are listed.</p>
 
         <taglist>
           <tag><c>{warn_format, Verbosity}</c></tag>
           <item>
             <p>Causes warnings to be emitted for malformed format
               strings as arguments to <c>io:format</c> and similar
-              functions. <c>Verbosity</c> selects the amount of
-              warnings: 0 = no warnings; 1 = warnings for invalid
-              format strings and incorrect number of arguments; 2 =
-              warnings also when the validity could not be checked
-              (for example, when the format string argument is a
-              variable). The default verbosity is 1. Verbosity 0 can
-              also be selected by the option <c>nowarn_format</c>.</p>
+              functions.</p>
+	      <p><c>Verbosity</c> selects the number of warnings:</p>
+	      <list type="bulleted">
+		<item><c>0</c> = No warnings</item>
+		<item><c>1</c> = Warnings for invalid format strings and incorrect 
+		number of arguments</item>
+		<item><c>2</c> = Warnings also when the validity cannot 
+		be checked, for example, when the format string argument is a
+		variable.</item>
+	      </list>
+	      <p>The default verbosity is <c>1</c>. Verbosity <c>0</c> can
+              also be selected by option <c>nowarn_format</c>.</p>
           </item>
 
           <tag><c>nowarn_bif_clash</c></tag>
           <item>
-            <p>This option is removed, it will generate a fatal error if used.</p>
+            <p>This option is removed, it generates a fatal error if used.</p>
 
 	    <warning>
-	    <p>Beginning with R14A, the compiler no longer calls the
+	    <p>As from beginning with R14A, the compiler no longer calls the
 	    auto-imported BIF if the name clashes with a local or
-	    explicitly imported function and a call without explicit
-	    module name is issued. Instead the local or imported
-	    function is called. Still accepting <c>nowarn_bif_clash</c> would makes a
-	    module calling functions clashing with autoimported BIFs
+	    explicitly imported function, and a call without explicit
+	    module name is issued. Instead, the local or imported
+	    function is called. Still accepting <c>nowarn_bif_clash</c> would 
+	    make a module calling functions clashing with auto-imported BIFs
 	    compile with both the old and new compilers, but with
-	    completely different semantics, why the option was removed.</p>
+	    completely different semantics. This is why the option is removed.</p>
 
-	    <p>The use of this option has always been strongly discouraged.
-	    From OTP R14A and forward it's an error to use it.</p>
+	    <p>The use of this option has always been discouraged.
+	    As from R14A, it is an error to use it.</p>
 	    <p>To resolve BIF clashes, use explicit module names or the
 	    <c>{no_auto_import,[F/A]}</c> compiler directive.</p>
 	    </warning>
@@ -470,11 +474,11 @@ module.beam: module.erl \
 
           <tag><c>{nowarn_bif_clash, FAs}</c></tag>
           <item>
-            <p>This option is removed, it will generate a fatal error if used.</p>
+            <p>This option is removed, it generates a fatal error if used.</p>
 
 	    <warning>
-	    <p>The use of this option has always been strongly discouraged.
-	    From OTP R14A and forward it's an error to use it.</p>
+	    <p>The use of this option has always been discouraged.
+	    As from R14A, it is an error to use it.</p>
 	    <p>To resolve BIF clashes, use explicit module names or the
 	    <c>{no_auto_import,[F/A]}</c> compiler directive.</p>
 	    </warning>
@@ -482,35 +486,29 @@ module.beam: module.erl \
 
 	  <tag><c>warn_export_all</c></tag>
           <item>
-            <p>Causes a warning to be emitted if the <c>export_all</c>
-	      option has also been given.</p>
+	      <p>Emits a warning if option <c>export_all</c> is also given.</p>
           </item>
 
 	  <tag><c>warn_export_vars</c></tag>
           <item>
-            <p>Causes warnings to be emitted for all implicitly
-              exported variables referred to after the primitives
-              where they were first defined. No warnings for exported
-              variables unless they are referred to in some pattern,
-              which is the default, can be selected by the option
-              <c>nowarn_export_vars</c>.</p>
+	    <p>Emits warnings for all implicitly exported variables 
+	      referred to after the primitives where they were first defined. 
+	      By default, the compiler only emits warnings for exported 
+	      variables referred to in a pattern.</p>
           </item>
 
-	  <tag><c>warn_shadow_vars</c></tag>
+	  <tag><c>nowarn_shadow_vars</c></tag>
           <item>
-            <p>Causes warnings to be emitted for "fresh" variables
-              in functional objects or list comprehensions with the same
-	      name as some already defined variable. The default is to
-	      warn for such variables. No warnings for shadowed
-	      variables can be selected by the option 
-              <c>nowarn_shadow_vars</c>.</p>
+	      <p>Turns off warnings for "fresh" variables 
+	      in functional objects or list comprehensions with the same 
+	      name as some already defined variable. Default is to 
+	      emit warnings for such variables.</p>   
           </item>
 
 	  <tag><c>nowarn_unused_function</c></tag>
           <item>
-            <p>Turns off warnings for unused local functions.
-              By default (<c>warn_unused_function</c>), warnings are
-	      emitted for all local functions that are not called
+            <p>Turns off warnings for unused local functions. Default 
+	    is to emit warnings for all local functions that are not called
 	      directly or indirectly by an exported function.
               The compiler does not include unused local functions in
 	      the generated beam file, but the warning is still useful
@@ -519,148 +517,142 @@ module.beam: module.erl \
 
 	  <tag><c>{nowarn_unused_function, FAs}</c></tag>
           <item>
-            <p>Turns off warnings for unused local functions as
-              <c>nowarn_unused_function</c> but only for the mentioned
+            <p>Turns off warnings for unused local functions like
+              <c>nowarn_unused_function</c> does, but only for the mentioned
               local functions. <c>FAs</c> is a tuple <c>{Name,Arity}</c>
               or a list of such tuples.</p>
           </item>
 
 	  <tag><c>nowarn_deprecated_function</c></tag>
           <item>
-            <p>Turns off warnings for calls to deprecated functions. By
-	      default (<c>warn_deprecated_function</c>), warnings are
-	      emitted for every call to a function known by the compiler
-	      to be deprecated. Note that the compiler does not know
-	      about the <c>-deprecated()</c> attribute but uses an
+            <p>Turns off warnings for calls to deprecated functions. Default 
+	    is to emit warnings for every call to a function known by the 
+	    compiler to be deprecated. Notice that the compiler does not know
+	      about attribute <c>-deprecated()</c>, but uses an
 	      assembled list of deprecated functions in Erlang/OTP. To
-	      do a more general check the <c>Xref</c> tool can be used.
+	      do a more general check, the <c>Xref</c> tool can be used.
 	      See also
 	      <seealso marker="tools:xref#deprecated_function">xref(3)</seealso>
               and the function
-	      <seealso marker="tools:xref#m/1">xref:m/1</seealso> also
-              accessible through
-	      the <seealso marker="stdlib:c#xm/1">c:xm/1</seealso>
-	      function.</p>
+	      <seealso marker="tools:xref#m/1">xref:m/1</seealso>, also
+              accessible through the function 
+	    <seealso marker="stdlib:c#xm/1">c:xm/1</seealso>.</p>
           </item>
 
 	  <tag><c>{nowarn_deprecated_function, MFAs}</c></tag>
           <item>
-            <p>Turns off warnings for calls to deprecated functions as
-	      <c>nowarn_deprecated_function</c> but only for
+            <p>Turns off warnings for calls to deprecated functions like
+	      <c>nowarn_deprecated_function</c> does, but only for
 	      the mentioned functions. <c>MFAs</c> is a tuple
               <c>{Module,Name,Arity}</c> or a list of such tuples.</p>
           </item>
 
 	  <tag><c>nowarn_deprecated_type</c></tag>
           <item>
-            <p>Turns off warnings for uses of deprecated types. By
-	      default (<c>warn_deprecated_type</c>), warnings are
-	      emitted for every use of a type known by the compiler
-	      to be deprecated.</p>
+            <p>Turns off warnings for use of deprecated types. Default 
+	    is to emit warnings for every use of a type known by the compiler
+	    to be deprecated.</p>
           </item>
 
 	  <tag><c>warn_obsolete_guard</c></tag>
           <item>
-            <p>Causes warnings to be emitted for calls to old type
-	      testing BIFs such as <c>pid/1</c> and <c>list/1</c>. See
-	      the
-	      <seealso marker="doc/reference_manual:expressions#guards">Erlang Reference Manual</seealso>
+            <p>Emits warnings for calls to old type testing BIFs, 
+	    such as <c>pid/1</c> and <c>list/1</c>. See the
+	    <seealso marker="doc/reference_manual:expressions#guards">Erlang Reference Manual</seealso>
 	      for a complete list of type testing BIFs and their old
-	      equivalents. No warnings for calls to old type testing
-	      BIFs, which is the default, can be selected by the option
-              <c>nowarn_obsolete_guard</c>.</p>
+	      equivalents. Default is to emit no warnings for calls to 
+	      old type testing BIFs.</p>
           </item>
 
 	  <tag><c>warn_unused_import</c></tag>
           <item>
-            <p>Causes warnings to be emitted for unused imported
-              functions. No warnings for unused imported functions,
-	      which is the default, can be selected by the option
-              <c>nowarn_unused_import</c>. </p>
+            <p>Emits warnings for unused imported functions. 
+	    Default is to emit no warnings for unused imported functions.</p>
           </item>
 
           <tag><c>nowarn_unused_vars</c></tag>
           <item>
-            <p>By default, warnings are emitted for variables which
-              are not used, with the exception of variables beginning
-              with an underscore ("Prolog style warnings").
+            <p>By default, warnings are emitted for unused variables,
+	      except for variables beginning with an underscore 
+	      ("Prolog style warnings").
               Use this option to turn off this kind of warnings.</p>
           </item>
 
 	  <tag><c>nowarn_unused_record</c></tag>
           <item>
-            <p>Turns off warnings for unused record types. By
-              default (<c>warn_unused_records</c>), warnings are
-              emitted for unused locally defined record types.</p>
+            <p>Turns off warnings for unused record types. Default is to 
+	    emit warnings for unused locally defined record types.</p>
           </item>
         </taglist>
 
 	<p>Another class of warnings is generated by the compiler
 	  during optimization and code generation. They warn about
 	  patterns that will never match (such as <c>a=b</c>), guards
-	  that will always evaluate to false, and expressions that will
+	  that always evaluate to false, and expressions that
 	  always fail (such as <c>atom+42</c>).</p>
-
-        <p>Note that the compiler does not warn for expressions that it
-          does not attempt to optimize. For instance, the compiler tries
-          to evaluate <c>1/0</c>, notices that it will cause an
-	  exception and emits a warning. On the other hand,
-	  the compiler is silent about the similar expression
-	  <c>X/0</c>; because of the variable in it, the compiler does
-	  not even try to evaluate and therefore it emits no warnings.
-	</p>
-
-	<p>Currently, those warnings cannot be disabled (except by
+	  <p>Those warnings cannot be disabled (except by
 	  disabling all warnings).</p>
 
+	  <note>
+	    <p>The compiler does not warn for expressions that it
+          does not attempt to optimize. For example, the compiler tries
+          to evaluate <c>1/0</c>, detects that it will cause an
+	  exception, and emits a warning. However,
+	  the compiler is silent about the similar expression,
+	  <c>X/0</c>, because of the variable in it. Thus, the compiler does
+	  not even try to evaluate and therefore it emits no warnings.</p>
+          </note>
+
 	<warning>
-          <p>Obviously, the absence of warnings does not mean that
+          <p>The absence of warnings does not mean that
 	    there are no remaining errors in the code.</p>
         </warning>
-
-	<p>Note that all the options except the include path
-	  (<c>{i,Dir}</c>) can also be given in the file with a
-	  <c>-compile([Option,...])</c>. attribute.
-	  The <c>-compile()</c> attribute is allowed after function
+	
+	<note>
+	<p>All options, except the include path
+	  (<c>{i,Dir}</c>), can also be given in the file with attribute
+	  <c>-compile([Option,...])</c>.
+	  Attribute <c>-compile()</c> is allowed after the function
 	  definitions.</p>
-
-	<p>Note also that the <c>{nowarn_unused_function, FAs}</c>,
+	</note>
+	
+	<note>
+	<p>The options <c>{nowarn_unused_function, FAs}</c>,
           <c>{nowarn_bif_clash, FAs}</c>, and 
-          <c>{nowarn_deprecated_function, MFAs}</c> options are only
+          <c>{nowarn_deprecated_function, MFAs}</c> are only
           recognized when given in files. They are not affected by
-	  the <c>warn_unused_function</c>, <c>warn_bif_clash</c>, or 
-          <c>warn_deprecated_function</c> options.</p>
+	  options <c>warn_unused_function</c>, <c>warn_bif_clash</c>, or 
+          <c>warn_deprecated_function</c>.</p>
+	</note>
 
         <p>For debugging of the compiler, or for pure curiosity,
           the intermediate code generated by each compiler pass can be
 	  inspected.
-          A complete list of the options to produce list files can be
-	  printed by typing <c>compile:options()</c> at the Erlang
-	  shell prompt.
-          The options will be printed in order that the passes are
+          To print a complete list of the options to produce list files,
+	  type <c>compile:options()</c> at the Erlang shell prompt.
+          The options are printed in the order that the passes are
 	  executed. If more than one listing option is used, the one
 	  representing the earliest pass takes effect.</p>
 
-        <p><em>Unrecognized options are ignored.</em></p>
+        <p>Unrecognized options are ignored.</p>
 
         <p>Both <c>WarningList</c> and <c>ErrorList</c> have
 	  the following format:</p>
         <code>
-[{FileName,[ErrorInfo]}].
-        </code>
-
-	<p><c>ErrorInfo</c> is described below. The file name has been
-	  included here as the compiler uses the Erlang pre-processor
-	  <c>epp</c>, which allows the code to be included in other
-	  files. For this reason, it is important to know to
-	  <em>which</em> file an error or warning line number refers.
+[{FileName,[ErrorInfo]}].</code>
+
+	<p><c>ErrorInfo</c> is described later in this section. 
+	The filename is included here, as the compiler uses the 
+	Erlang pre-processor <c>epp</c>, which allows the code to be 
+	included in other files. It is therefore important to know to
+	  <em>which</em> file the line number of an error or a warning refers.
 	</p>
       </desc>
     </func>
 
     <func>
       <name>forms(Forms)</name>
-      <fsummary>Compile a list of forms</fsummary>
+      <fsummary>Compiles a list of forms.</fsummary>
       <desc>
         <p>Is the same as
 	  <c>forms(File, [verbose,report_errors,report_warnings])</c>.
@@ -670,7 +662,7 @@ module.beam: module.erl \
 
     <func>
       <name>forms(Forms, Options) -> CompRet</name>
-      <fsummary>Compile a list of forms</fsummary>
+      <fsummary>Compiles a list of forms.</fsummary>
       <type>
         <v>Forms = [Form]</v>
         <v>CompRet = BinRet | ErrRet</v>
@@ -681,48 +673,49 @@ module.beam: module.erl \
       <desc>
         <p>Analogous to <c>file/1</c>, but takes a list of forms (in
 	  the Erlang abstract format representation) as first argument.
-          The option <c>binary</c> is implicit; i.e., no object code
-	  file is produced. Options that would ordinarily produce a
-	  listing file, such as 'E', will instead cause the internal
-	  format for that compiler pass (an Erlang term; usually not a
-	  binary) to be returned instead of a binary.</p>
+          Option <c>binary</c> is implicit, that is, no object code
+	  file is produced. For options that normally produce a listing 
+	  file, such as 'E', the internal format for that compiler pass 
+	  (an Erlang term, usually not a binary) is returned instead of 
+	a binary.</p>
       </desc>
     </func>
 
     <func>
       <name>format_error(ErrorDescriptor) -> chars()</name>
-      <fsummary>Format an error descriptor</fsummary>
+      <fsummary>Formats an error descriptor.</fsummary>
       <type>
         <v>ErrorDescriptor = errordesc()</v>
       </type>
       <desc>
         <p>Uses an <c>ErrorDescriptor</c> and returns a deep list of
-	  characters which describes the error. This function is
-	  usually called implicitly when an <c>ErrorInfo</c> structure
-	  is processed. See below.</p>
+	  characters that describes the error. This function is
+	  usually called implicitly when an <c>ErrorInfo</c> structure 
+	(described in section 
+	<seealso marker="#error_information">Error Information</seealso>) is processed.</p>
       </desc>
     </func>
 
     <func>
       <name>output_generated(Options) -> true | false</name>
-      <fsummary>Determine whether the compile will generate an output file</fsummary>
+      <fsummary>Determines whether the compiler generates an output file.</fsummary>
       <type>
         <v>Options = [term()]</v>
       </type>
       <desc>
-        <p>Determines whether the compiler would generate a <c>beam</c>
+        <p>Determines whether the compiler generates a <c>beam</c>
 	file with the given options. <c>true</c> means that a <c>beam</c>
-	file would be generated; <c>false</c> means that the compiler
-	would generate some listing file, return a binary, or merely
-	check the syntax of the source code.</p>
+	file is generated. <c>false</c> means that the compiler
+	generates some listing file, returns a binary, or merely
+	checks the syntax of the source code.</p>
       </desc>
     </func>
 
     <func>
       <name>noenv_file(File, Options) -> CompRet</name>
-      <fsummary>Compile a file (ignoring ERL_COMPILER_OPTIONS)</fsummary>
+      <fsummary>Compiles a file (ignoring <c>ERL_COMPILER_OPTIONS)</c>.</fsummary>
       <desc>
-      <p>Works exactly like <seealso marker="#file/2">file/2</seealso>,
+      <p>Works like <seealso marker="#file/2">file/2</seealso>,
 	 except that the environment variable <c>ERL_COMPILER_OPTIONS</c>
 	 is not consulted.</p>
       </desc>
@@ -730,9 +723,9 @@ module.beam: module.erl \
 
     <func>
       <name>noenv_forms(Forms, Options) -> CompRet</name>
-      <fsummary>Compile a list of forms (ignoring ERL_COMPILER_OPTIONS)</fsummary>
+      <fsummary>Compiles a list of forms (ignoring <c>ERL_COMPILER_OPTIONS)</c>.</fsummary>
       <desc>
-        <p>Works exactly like <seealso marker="#forms/2">forms/2</seealso>,
+        <p>Works like <seealso marker="#forms/2">forms/2</seealso>,
 	 except that the environment variable <c>ERL_COMPILER_OPTIONS</c>
 	 is not consulted.</p>
       </desc>
@@ -740,12 +733,13 @@ module.beam: module.erl \
 
     <func>
       <name>noenv_output_generated(Options) -> true | false</name>
-      <fsummary>Determine whether the compile will generate an output file (ignoring ERL_COMPILER_OPTIONS)</fsummary>
+      <fsummary>Determines whether the compiler generates an output file 
+      (ignoring <c>ERL_COMPILER_OPTIONS)</c>.</fsummary>
       <type>
         <v>Options = [term()]</v>
       </type>
       <desc>
-        <p>Works exactly like
+        <p>Works like
 	<seealso marker="#output_generated/1">output_generated/1</seealso>,
 	except that the environment variable <c>ERL_COMPILER_OPTIONS</c>
 	is not consulted.</p>
@@ -755,14 +749,14 @@ module.beam: module.erl \
   </funcs>
 
   <section>
-    <title>Default compiler options</title>
+    <title>Default Compiler Options</title>
     <p>The (host operating system) environment variable
       <c>ERL_COMPILER_OPTIONS</c> can be used to give default compiler
       options. Its value must be a valid Erlang term. If the value is a
-      list, it will be used as is. If it is not a list, it will be put
+      list, it is used as is. If it is not a list, it is put
       into a list.</p>
 
-      <p>The list will be appended to any options given to
+      <p>The list is appended to any options given to
       <seealso marker="#file/2">file/2</seealso>,
       <seealso marker="#forms/2">forms/2</seealso>, and
       <seealso marker="#output_generated/1">output_generated/2</seealso>.
@@ -770,9 +764,9 @@ module.beam: module.erl \
       <seealso marker="#noenv_file/2">noenv_file/2</seealso>,
       <seealso marker="#noenv_forms/2">noenv_forms/2</seealso>, or
       <seealso marker="#noenv_output_generated/1">noenv_output_generated/2</seealso>
-      if you don't want the environment variable to be consulted
-      (for instance, if you are calling the compiler recursively from
-      inside a parse transform).</p>
+      if you do not want the environment variable to be consulted,
+      for example, if you are calling the compiler recursively from
+      inside a parse transform.</p>
   </section>
 
   <section>
@@ -781,31 +775,31 @@ module.beam: module.erl \
       module. Inlining means that a call to a function is replaced with
       the function body with the arguments replaced with the actual
       values. The semantics are preserved, except if exceptions are
-      generated in the inlined code. Exceptions will be reported as
+      generated in the inlined code. Exceptions are reported as
       occurring in the function the body was inlined into. Also,
-      <c>function_clause</c> exceptions will be converted to similar
+      <c>function_clause</c> exceptions are converted to similar
       <c>case_clause</c> exceptions.</p>
 
-    <p>When a function is inlined, the original function will be
+    <p>When a function is inlined, the original function is
       kept if it is exported (either by an explicit export or if the
-      <c>export_all</c> option was given) or if not all calls to the
-      function were inlined.</p>
+      option <c>export_all</c> was given) or if not all calls to the
+      function are inlined.</p>
     
     <p>Inlining does not necessarily improve running time.
-      For instance, inlining may increase Beam stack usage which will
-      probably be detrimental to performance for recursive functions.
+      For example, inlining can increase Beam stack use, which
+      probably is detrimental to performance for recursive functions.
     </p>
 
-    <p>Inlining is never default; it must be explicitly enabled with a
+    <p>Inlining is never default. It must be explicitly enabled with a
       compiler option or a <c>-compile()</c> attribute in the source
       module.</p>
 
-    <p>To enable inlining, either use the <c>inline</c> option to
-    let the compiler decide which functions to inline or
+    <p>To enable inlining, either use the option <c>inline</c> to
+    let the compiler decide which functions to inline, or
     <c>{inline,[{Name,Arity},...]}</c> to have the compiler inline
     all calls to the given functions. If the option is given inside
     a <c>compile</c> directive in an Erlang module, <c>{Name,Arity}</c>
-    may be written as <c>Name/Arity</c>.</p>
+    can be written as <c>Name/Arity</c>.</p>
 
     <p>Example of explicit inlining:</p>
 
@@ -817,33 +811,30 @@ pi() -> 3.1416.
 
     <p>Example of implicit inlining:</p>
     <pre>
--compile(inline).
-    </pre>
+-compile(inline).</pre>
 
-    <p>The <c>{inline_size,Size}</c> option controls how large functions
-      that are allowed to be inlined. Default is <c>24</c>, which will
-      keep the size of the inlined code roughly the same as
-      the un-inlined version (only relatively small functions will be
+    <p>The option <c>{inline_size,Size}</c> controls how large functions
+      that are allowed to be inlined. Default is <c>24</c>, which
+      keeps the size of the inlined code roughly the same as
+      the un-inlined version (only relatively small functions are
       inlined).</p>
 
     <p>Example:</p>
     <pre>
 %% Aggressive inlining - will increase code size.
 -compile(inline).
--compile({inline_size,100}).
-    </pre>
+-compile({inline_size,100}).</pre>
   </section>
 
   <section>
-    <title>Inlining of list functions</title>
-    <p>The compiler can also inline a variety of list manipulation functions
-      from the stdlib's lists module.</p>
+    <title>Inlining of List Functions</title>
+    <p>The compiler can also inline various list manipulation functions
+      from the module <c>list</c> in <c>STDLIB</c>.</p>
 
     <p>This feature must be explicitly enabled with a compiler option or a
       <c>-compile()</c> attribute in the source module.</p>
 
-    <p>To enable inlining of list functions, use the <c>inline_list_funcs</c>
-    option.</p>
+    <p>To enable inlining of list functions, use option <c>inline_list_funcs</c>.</p>
 
     <p>The following functions are inlined:</p>
     <list type="bulleted">
@@ -869,24 +860,23 @@ pi() -> 3.1416.
   </section>
 
   <section>
+    <marker id="error_information"></marker>
     <title>Error Information</title>
 
-    <p>The <c>ErrorInfo</c> mentioned above is the standard
-      <c>ErrorInfo</c> structure which is returned from all IO modules.
+    <p>The <c>ErrorInfo</c> mentioned earlier is the standard
+      <c>ErrorInfo</c> structure, which is returned from all I/O modules.
       It has the following format:</p>
     <code>
-{ErrorLine, Module, ErrorDescriptor}
-    </code>
+{ErrorLine, Module, ErrorDescriptor}</code>
 
-    <p><c>ErrorLine</c> will be the atom <c>none</c> if the error does
-    not correspond to a specific line (e.g. if the source file does
-    not exist).</p>
+    <p><c>ErrorLine</c> is the atom <c>none</c> if the error does
+    not correspond to a specific line, for example, if the source file does
+    not exist.</p>
 
     <p>A string describing the error is obtained with the following
       call:</p>
     <code>
-Module:format_error(ErrorDescriptor)
-    </code>
+Module:format_error(ErrorDescriptor)</code>
   </section>
 
   <section>
diff --git a/lib/compiler/doc/src/ref_man.xml b/lib/compiler/doc/src/ref_man.xml
index 6478ad4b11..6584e79c4e 100644
--- a/lib/compiler/doc/src/ref_man.xml
+++ b/lib/compiler/doc/src/ref_man.xml
@@ -29,7 +29,7 @@
     <file>application.sgml</file>
   </header>
   <description>
-    <p>The <em>Compiler</em> application compiles Erlang
+    <p>The <c>Compiler</c> application compiles Erlang
       code to byte-code. The highly compact byte-code is executed by
       the Erlang emulator.</p>
   </description>
diff --git a/lib/compiler/src/Makefile b/lib/compiler/src/Makefile
index c6d09d85eb..78efc8dff0 100644
--- a/lib/compiler/src/Makefile
+++ b/lib/compiler/src/Makefile
@@ -70,6 +70,7 @@ MODULES =  \
 	cerl \
 	cerl_clauses \
 	cerl_inline \
+	cerl_sets \
 	cerl_trees \
 	compile \
 	core_lib \
@@ -81,6 +82,7 @@ MODULES =  \
 	rec_env \
 	sys_core_dsetel \
 	sys_core_fold \
+	sys_core_fold_lists \
 	sys_core_inline \
 	sys_pre_attributes \
 	sys_pre_expand \
@@ -158,6 +160,10 @@ $(EBIN)/beam_asm.beam: $(ESRC)/beam_asm.erl $(EGEN)/beam_opcodes.hrl
 $(EBIN)/cerl_inline.beam: $(ESRC)/cerl_inline.erl
 	$(V_ERLC) $(ERL_COMPILE_FLAGS) +nowarn_shadow_vars -o$(EBIN) $<
 
+# Inlining core_parse is slow and has no benefit.
+$(EBIN)/core_parse.beam: $(EGEN)/core_parse.erl
+	$(V_ERLC) $(subst +inline,,$(ERL_COMPILE_FLAGS)) -o$(EBIN) $<
+
 # ----------------------------------------------------
 # Release Target
 # ---------------------------------------------------- 
@@ -187,6 +193,7 @@ $(EBIN)/core_parse.beam: core_parse.hrl $(EGEN)/core_parse.erl
 $(EBIN)/core_pp.beam: core_parse.hrl
 $(EBIN)/sys_core_dsetel.beam: core_parse.hrl
 $(EBIN)/sys_core_fold.beam: core_parse.hrl
+$(EBIN)/sys_core_fold_lists.beam: core_parse.hrl
 $(EBIN)/sys_core_inline.beam: core_parse.hrl
 $(EBIN)/sys_pre_expand.beam: ../../stdlib/include/erl_bits.hrl
 $(EBIN)/v3_codegen.beam: v3_life.hrl
diff --git a/lib/compiler/src/beam_a.erl b/lib/compiler/src/beam_a.erl
index fe4f473846..410f598665 100644
--- a/lib/compiler/src/beam_a.erl
+++ b/lib/compiler/src/beam_a.erl
@@ -54,6 +54,9 @@ rename_instrs([{call_only,A,F}|Is]) ->
     [{call,A,F},return|rename_instrs(Is)];
 rename_instrs([{call_ext_only,A,F}|Is]) ->
     [{call_ext,A,F},return|rename_instrs(Is)];
+rename_instrs([{'%live',_}|Is]) ->
+    %% When compiling from old .S files.
+    rename_instrs(Is);
 rename_instrs([I|Is]) ->
     [rename_instr(I)|rename_instrs(Is)];
 rename_instrs([]) -> [].
@@ -88,6 +91,10 @@ rename_instr({bs_private_append=I,F,Sz,U,Src,Flags,Dst}) ->
     {bs_init,F,{I,U,Flags},none,[Sz,Src],Dst};
 rename_instr(bs_init_writable=I) ->
     {bs_init,{f,0},I,1,[{x,0}],{x,0}};
+rename_instr({test,Op,F,[Ctx,Bits,{string,Str}]}) ->
+    %% When compiling from a .S file.
+    <<Bs:Bits/bits,_/bits>> = list_to_binary(Str),
+    {test,Op,F,[Ctx,Bs]};
 rename_instr({put_map_assoc,Fail,S,D,R,L}) ->
     {put_map,Fail,assoc,S,D,R,L};
 rename_instr({put_map_exact,Fail,S,D,R,L}) ->
diff --git a/lib/compiler/src/beam_asm.erl b/lib/compiler/src/beam_asm.erl
index f8cf178d2e..73694b96ce 100644
--- a/lib/compiler/src/beam_asm.erl
+++ b/lib/compiler/src/beam_asm.erl
@@ -132,10 +132,10 @@ build_file(Code, Attr, Dict, NumLabels, NumFuncs, Abst, SourceFile, Opts) ->
     LiteralChunk = case beam_dict:literal_table(Dict) of
 		       {0,[]} -> [];
 		       {NumLiterals,LitTab0} ->
-			   LitTab1 = iolist_to_binary(LitTab0),
-			   LitTab2 = <<NumLiterals:32,LitTab1/binary>>,
-			   LitTab = iolist_to_binary(zlib:compress(LitTab2)),
-			   chunk(<<"LitT">>, <<(byte_size(LitTab2)):32>>, LitTab)
+			   LitTab1 = [<<NumLiterals:32>>,LitTab0],
+			   LitTab = zlib:compress(LitTab1),
+			   chunk(<<"LitT">>, <<(iolist_size(LitTab1)):32>>,
+				 LitTab)
 		   end,
 
     %% Create the line chunk.
@@ -431,45 +431,35 @@ encode_alloc_list_1([], Dict, Acc) ->
     {iolist_to_binary(Acc),Dict}.
 
 encode(Tag, N) when N < 0 ->
-    encode1(Tag, negative_to_bytes(N, []));
+    encode1(Tag, negative_to_bytes(N));
 encode(Tag, N) when N < 16 ->
     (N bsl 4) bor Tag;
 encode(Tag, N) when N < 16#800  ->
     [((N bsr 3) band 2#11100000) bor Tag bor 2#00001000, N band 16#ff];
 encode(Tag, N) ->
-    encode1(Tag, to_bytes(N, [])).
+    encode1(Tag, to_bytes(N)).
 
 encode1(Tag, Bytes) ->
-    case length(Bytes) of
+    case iolist_size(Bytes) of
 	Num when 2 =< Num, Num =< 8 ->
 	    [((Num-2) bsl 5) bor 2#00011000 bor Tag| Bytes];
 	Num when 8 < Num ->
 	    [2#11111000 bor Tag, encode(?tag_u, Num-9)| Bytes]
     end.
 
-
-to_bytes(N0, Acc) ->
-    Bits = 3*128,
-    case N0 bsr Bits of
-	0 ->
-	    to_bytes_1(N0, Acc);
-	N ->
-	    to_bytes(N, binary_to_list(<<N0:Bits>>) ++ Acc)
-    end.
-    
-to_bytes_1(0, [B|_]=Done) when B < 128 -> Done;
-to_bytes_1(N, Acc) -> to_bytes(N bsr 8, [N band 16#ff|Acc]).
-
-negative_to_bytes(N0, Acc) ->
-    Bits = 3*128,
-    case N0 bsr Bits of
-	-1 ->
-	    negative_to_bytes_1(N0, Acc);
-	N ->
-	    negative_to_bytes_1(N, binary_to_list(<<N0:Bits>>) ++ Acc)
+to_bytes(N) ->
+    Bin = binary:encode_unsigned(N),
+    case Bin of
+	<<0:1,_/bits>> -> Bin;
+	<<1:1,_/bits>> -> [0,Bin]
     end.
 
-negative_to_bytes_1(-1, [B1,_B2|_]=Done) when B1 > 127 ->
-    Done;
-negative_to_bytes_1(N, Acc) ->
-    negative_to_bytes_1(N bsr 8, [N band 16#ff|Acc]).
+negative_to_bytes(N) when N >= -16#8000 ->
+    <<N:16>>;
+negative_to_bytes(N) ->
+    Bytes = byte_size(binary:encode_unsigned(-N)),
+    Bin = <<N:Bytes/unit:8>>,
+    case Bin of
+	<<0:1,_/bits>> -> [16#ff,Bin];
+	<<1:1,_/bits>> -> Bin
+    end.
diff --git a/lib/compiler/src/beam_block.erl b/lib/compiler/src/beam_block.erl
index 7a30c68593..e2639e9cac 100644
--- a/lib/compiler/src/beam_block.erl
+++ b/lib/compiler/src/beam_block.erl
@@ -61,15 +61,6 @@ blockify(Is) ->
 blockify([{loop_rec,{f,Fail},{x,0}},{loop_rec_end,_Lbl},{label,Fail}|Is], Acc) ->
     %% Useless instruction sequence.
     blockify(Is, Acc);
-
-%% New bit syntax matching.
-blockify([{bs_save2,R,Point}=I,{bs_restore2,R,Point}|Is], Acc) ->
-    blockify([I|Is], Acc);
-blockify([{bs_save2,R,Point}=I,{test,is_eq_exact,_,_}=Test,
-	  {bs_restore2,R,Point}|Is], Acc) ->
-    blockify([I,Test|Is], Acc);
-
-%% Do other peep-hole optimizations.
 blockify([{test,is_atom,{f,Fail},[Reg]}=I|
 	  [{select,select_val,Reg,{f,Fail},
 	    [{atom,false},{f,_}=BrFalse,
@@ -155,7 +146,8 @@ collect(remove_message)      -> {set,[],[],remove_message};
 collect({put_map,F,Op,S,D,R,{list,Puts}}) ->
     {set,[D],[S|Puts],{alloc,R,{put_map,Op,F}}};
 collect({get_map_elements,F,S,{list,Gets}}) ->
-    {set,Gets,[S],{get_map_elements,F}};
+    {Ss,Ds} = beam_utils:split_even(Gets),
+    {set,Ds,[S|Ss],{get_map_elements,F}};
 collect({'catch',R,L})       -> {set,[R],[],{'catch',L}};
 collect(fclearerror)         -> {set,[],[],fclearerror};
 collect({fcheckerror,{f,0}}) -> {set,[],[],fcheckerror};
@@ -183,7 +175,7 @@ embed_lines([], Acc) -> Acc.
 
 opt_blocks([{block,Bl0}|Is]) ->
     %% The live annotation at the beginning is not useful.
-    [{'%live',_}|Bl] = Bl0,
+    [{'%live',_,_}|Bl] = Bl0,
     [{block,opt_block(Bl)}|opt_blocks(Is)];
 opt_blocks([I|Is]) ->
     [I|opt_blocks(Is)];
@@ -251,13 +243,6 @@ combine_alloc({_,Ns,Nh1,Init}, {_,nostack,Nh2,[]})  ->
 %% opt([Instruction]) -> [Instruction]
 %%  Optimize the instruction stream inside a basic block.
 
-opt([{set,[Dst],As,{bif,Bif,Fail}}=I1,
-     {set,[Dst],[Dst],{bif,'not',Fail}}=I2|Is]) ->
-    %% Get rid of the 'not' if the operation can be inverted.
-    case inverse_comp_op(Bif) of
- 	none -> [I1,I2|opt(Is)];
- 	RevBif -> [{set,[Dst],As,{bif,RevBif,Fail}}|opt(Is)]
-    end;
 opt([{set,[X],[X],move}|Is]) -> opt(Is);
 opt([{set,_,_,{line,_}}=Line1,
      {set,[D1],[{integer,Idx1},Reg],{bif,element,{f,0}}}=I1,
@@ -268,7 +253,7 @@ opt([{set,_,_,{line,_}}=Line1,
 opt([{set,Ds0,Ss,Op}|Is0]) ->	
     {Ds,Is} = opt_moves(Ds0, Is0),
     [{set,Ds,Ss,Op}|opt(Is)];
-opt([{'%live',_}=I|Is]) ->
+opt([{'%live',_,_}=I|Is]) ->
     [I|opt(Is)];
 opt([]) -> [].
 
@@ -427,18 +412,6 @@ x_live([{x,N}|Rs], Regs) -> x_live(Rs, Regs bor (1 bsl N));
 x_live([_|Rs], Regs) -> x_live(Rs, Regs);
 x_live([], Regs) -> Regs.
 
-%% inverse_comp_op(Op) -> none|RevOp
-
-inverse_comp_op('=:=') -> '=/=';
-inverse_comp_op('=/=') -> '=:=';
-inverse_comp_op('==') -> '/=';
-inverse_comp_op('/=') -> '==';
-inverse_comp_op('>') -> '=<';
-inverse_comp_op('<') -> '>=';
-inverse_comp_op('>=') -> '<';
-inverse_comp_op('=<') -> '>';
-inverse_comp_op(_) -> none.
-
 %%%
 %%% Evaluation of constant bit fields.
 %%%
diff --git a/lib/compiler/src/beam_bool.erl b/lib/compiler/src/beam_bool.erl
index a452d30b61..5ed9c16d61 100644
--- a/lib/compiler/src/beam_bool.erl
+++ b/lib/compiler/src/beam_bool.erl
@@ -787,6 +787,9 @@ is_not_used(R, Is, Label, #st{ll=Ll}) ->
 initialized_regs(Is) ->
     initialized_regs(Is, ordsets:new()).
 
+initialized_regs([{set,Dst,_Src,{alloc,Live,_}}|_], Regs0) ->
+    Regs = add_init_regs(free_vars_regs(Live), Regs0),
+    add_init_regs(Dst, Regs);
 initialized_regs([{set,Dst,Src,_}|Is], Regs) ->
     initialized_regs(Is, add_init_regs(Dst, add_init_regs(Src, Regs)));
 initialized_regs([{test,_,_,Src}|Is], Regs) ->
diff --git a/lib/compiler/src/beam_bsm.erl b/lib/compiler/src/beam_bsm.erl
index d54c2a9fde..ee3e88959d 100644
--- a/lib/compiler/src/beam_bsm.erl
+++ b/lib/compiler/src/beam_bsm.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2007-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2007-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -20,7 +20,7 @@
 -module(beam_bsm).
 -export([module/2,format_error/1]).
 
--import(lists, [member/2,foldl/3,reverse/1,sort/1,all/2,dropwhile/2]).
+-import(lists, [member/2,foldl/3,reverse/1,sort/1,all/2]).
 
 %%%
 %%% We optimize bit syntax matching where the tail end of a binary is
@@ -242,6 +242,12 @@ btb_reaches_match_2([{bif,_,{f,F},Ss,Dst}=I|Is], Regs0, D0) ->
     Regs = btb_kill([Dst], Regs0),
     D = btb_follow_branch(F, Regs, D0),
     btb_reaches_match_1(Is, Regs, D);
+btb_reaches_match_2([{get_map_elements,{f,F},Src,{list,Ls}}=I|Is], Regs0, D0) ->
+    {Ss,Ds} = beam_utils:split_even(Ls),
+    btb_ensure_not_used([Src|Ss], I, Regs0),
+    Regs = btb_kill(Ds, Regs0),
+    D = btb_follow_branch(F, Regs, D0),
+    btb_reaches_match_1(Is, Regs, D);
 btb_reaches_match_2([{test,bs_start_match2,{f,F},Live,[Ctx,_],Ctx}=I|Is],
 		    Regs0, D0) ->
     CtxRegs = btb_context_regs(Regs0),
@@ -542,16 +548,13 @@ btb_context_regs_1(Regs, N, Tag, Acc) ->
 %%  a binary. MustSave is true if the function may pass the match
 %%  context to the bs_context_to_binary instruction (in which case
 %%  the current position in the binary must have saved into the
-%%  start position using "bs_save_2 Ctx start".
+%%  start position using "bs_save_2 Ctx start").
 
 btb_index(Fs) ->
     btb_index_1(Fs, []).
 
 btb_index_1([{function,_,_,Entry,Is0}|Fs], Acc0) ->
-    [{label,Entry}|Is] =
-	dropwhile(fun({label,L}) when L =:= Entry -> false;
-		     (_) -> true
-		  end, Is0),
+    Is = drop_to_label(Is0, Entry),
     Acc = btb_index_2(Is, Entry, false, Acc0),
     btb_index_1(Fs, Acc);
 btb_index_1([], Acc) -> gb_trees:from_orddict(sort(Acc)).
@@ -566,6 +569,9 @@ btb_index_2(Is0, Entry, _, Acc) ->
 	throw:none -> Acc
     end.
 
+drop_to_label([{label,L}|Is], L) -> Is;
+drop_to_label([_|Is], L) -> drop_to_label(Is, L).
+
 btb_index_find_start_match([{test,_,{f,F},_},{bs_context_to_binary,_}|Is]) ->
     btb_index_find_label(Is, F);
 btb_index_find_start_match(_) ->
@@ -615,7 +621,7 @@ collect_warnings_instr([_|Is], D, Acc) ->
 collect_warnings_instr([], _, Acc) -> Acc.
 
 add_warning(Term, Anno, Ws) ->
-    Line = abs(get_line(Anno)),
+    Line = get_line(Anno),
     File = get_file(Anno),
     [{File,[{Line,?MODULE,Term}]}|Ws].
 
diff --git a/lib/compiler/src/beam_clean.erl b/lib/compiler/src/beam_clean.erl
index b653998252..1d26993103 100644
--- a/lib/compiler/src/beam_clean.erl
+++ b/lib/compiler/src/beam_clean.erl
@@ -184,14 +184,6 @@ function_replace([{function,Name,Arity,Entry,Asm0}|Fs], Dict, Acc) ->
     function_replace(Fs, Dict, [{function,Name,Arity,Entry,Asm}|Acc]);
 function_replace([], _, Acc) -> Acc.
 
-replace([{test,bs_match_string=Op,{f,Lbl},[Ctx,Bin0]}|Is], Acc, D) ->
-    Bits = bit_size(Bin0),
-    Bin = case Bits rem 8 of
-	      0 -> Bin0;
-	      Rem -> <<Bin0/bitstring,0:(8-Rem)>>
-	  end,
-    I = {test,Op,{f,label(Lbl, D)},[Ctx,Bits,{string,binary_to_list(Bin)}]},
-    replace(Is, [I|Acc], D);
 replace([{test,Test,{f,Lbl},Ops}|Is], Acc, D) ->
     replace(Is, [{test,Test,{f,label(Lbl, D)},Ops}|Acc], D);
 replace([{test,Test,{f,Lbl},Live,Ops,Dst}|Is], Acc, D) ->
@@ -234,31 +226,6 @@ replace([{bs_init,{f,Lbl},Info,Live,Ss,Dst}|Is], Acc, D) when Lbl =/= 0 ->
     replace(Is, [{bs_init,{f,label(Lbl, D)},Info,Live,Ss,Dst}|Acc], D);
 replace([{bs_put,{f,Lbl},Info,Ss}|Is], Acc, D) when Lbl =/= 0 ->
     replace(Is, [{bs_put,{f,label(Lbl, D)},Info,Ss}|Acc], D);
-replace([{bs_init2,{f,Lbl},Sz,Words,R,F,Dst}|Is], Acc, D) when Lbl =/= 0 ->
-    replace(Is, [{bs_init2,{f,label(Lbl, D)},Sz,Words,R,F,Dst}|Acc], D);
-replace([{bs_init_bits,{f,Lbl},Sz,Words,R,F,Dst}|Is], Acc, D) when Lbl =/= 0 ->
-    replace(Is, [{bs_init_bits,{f,label(Lbl, D)},Sz,Words,R,F,Dst}|Acc], D);
-replace([{bs_put_integer,{f,Lbl},Bits,Unit,Fl,Val}|Is], Acc, D) when Lbl =/= 0 ->
-    replace(Is, [{bs_put_integer,{f,label(Lbl, D)},Bits,Unit,Fl,Val}|Acc], D);
-replace([{bs_put_utf8=I,{f,Lbl},Fl,Val}|Is], Acc, D) when Lbl =/= 0 ->
-    replace(Is, [{I,{f,label(Lbl, D)},Fl,Val}|Acc], D);
-replace([{bs_put_utf16=I,{f,Lbl},Fl,Val}|Is], Acc, D) when Lbl =/= 0 ->
-    replace(Is, [{I,{f,label(Lbl, D)},Fl,Val}|Acc], D);
-replace([{bs_put_utf32=I,{f,Lbl},Fl,Val}|Is], Acc, D) when Lbl =/= 0 ->
-    replace(Is, [{I,{f,label(Lbl, D)},Fl,Val}|Acc], D);
-replace([{bs_put_binary,{f,Lbl},Bits,Unit,Fl,Val}|Is], Acc, D) when Lbl =/= 0 ->
-    replace(Is, [{bs_put_binary,{f,label(Lbl, D)},Bits,Unit,Fl,Val}|Acc], D);
-replace([{bs_put_float,{f,Lbl},Bits,Unit,Fl,Val}|Is], Acc, D) when Lbl =/= 0 ->
-    replace(Is, [{bs_put_float,{f,label(Lbl, D)},Bits,Unit,Fl,Val}|Acc], D);
-replace([{bs_add,{f,Lbl},Src,Dst}|Is], Acc, D) when Lbl =/= 0 ->
-    replace(Is, [{bs_add,{f,label(Lbl, D)},Src,Dst}|Acc], D);
-replace([{bs_append,{f,Lbl},_,_,_,_,_,_,_}=I0|Is], Acc, D) when Lbl =/= 0 ->
-    I = setelement(2, I0, {f,label(Lbl, D)}),
-    replace(Is, [I|Acc], D);
-replace([{bs_utf8_size=I,{f,Lbl},Src,Dst}|Is], Acc, D) when Lbl =/= 0 ->
-    replace(Is, [{I,{f,label(Lbl, D)},Src,Dst}|Acc], D);
-replace([{bs_utf16_size=I,{f,Lbl},Src,Dst}|Is], Acc, D) when Lbl =/= 0 ->
-    replace(Is, [{I,{f,label(Lbl, D)},Src,Dst}|Acc], D);
 replace([{put_map=I,{f,Lbl},Op,Src,Dst,Live,List}|Is], Acc, D)
   when Lbl =/= 0 ->
     replace(Is, [{I,{f,label(Lbl, D)},Op,Src,Dst,Live,List}|Acc], D);
diff --git a/lib/compiler/src/beam_dead.erl b/lib/compiler/src/beam_dead.erl
index b15adfa889..bbe607cf19 100644
--- a/lib/compiler/src/beam_dead.erl
+++ b/lib/compiler/src/beam_dead.erl
@@ -21,112 +21,10 @@
 
 -export([module/2]).
 
-%%% The following optimisations are done:
-%%%
-%%% (1) In this code
-%%%
-%%%     	move DeadValue {x,0}
-%%%     	jump L2
-%%%        .
-%%%        .
-%%%        .
-%%%     L2:	move Anything {x,0}
-%%%        .
-%%%        .
-%%%        .
-%%%
-%%%     the first assignment to {x,0} has no effect (is dead),
-%%%     so it can be removed. Besides removing a move instruction,
-%%%     if the move was preceeded by a label, the resulting code
-%%%	will look this
-%%%
-%%%     L1:	jump L2
-%%%        .
-%%%        .
-%%%        .
-%%%     L2:	move Anything {x,0}
-%%%        .
-%%%        .
-%%%        .
-%%%
-%%%	which can be further optimized by the jump optimizer (beam_jump).
-%%%
-%%% (2) In this code
-%%%
-%%%     L1:	move AtomLiteral {x,0}
-%%%     	jump L2
-%%%        .
-%%%        .
-%%%        .
-%%%     L2:	test is_atom FailLabel {x,0}
-%%%    		select_val {x,0}, FailLabel [... AtomLiteral => L3...]
-%%%        .
-%%%        .
-%%%        .
-%%%	L3:	...
-%%%
-%%%     FailLabel: ...
-%%%
-%%%	the first code fragment can be changed to
-%%%
-%%%     L1:	move AtomLiteral {x,0}
-%%%     	jump L3
-%%%
-%%%     If the literal is not included in the table of literals in the
-%%%     select_val instruction, the first code fragment will instead be
-%%%     rewritten as:
-%%%
-%%%     L1:	move AtomLiteral {x,0}
-%%%     	jump FailLabel
-%%%
-%%%	The move instruction will be removed by optimization (1) above,
-%%%	if the code following the L3 label overwrites {x,0}.
-%%%
-%%% 	The code following the L2 label will be kept, but it will be removed later
-%%%	by the jump optimizer.
-%%%
-%%% (3) In this code
-%%%
-%%%     	test is_eq_exact ALabel Src Dst
-%%%     	move Src Dst
-%%%
-%%%	the move instruction can be removed.
-%%%     Same thing for
-%%%
-%%%     	test is_nil ALabel Dst
-%%%     	move [] Dst
-%%%
-%%%
-%%% (4) In this code
-%%%
-%%%    		select_val {x,Reg}, ALabel [... Literal => L1...]
-%%%        .
-%%%        .
-%%%        .
-%%%	L1:	move Literal {x,Reg}
-%%%
-%%%     we can remove the move instruction.
-%%%
-%%% (5) In the following code
-%%%
-%%%     	bif '=:=' Fail Src1 Src2 {x,0}
-%%%    		jump L1
-%%%	   .
-%%%	   .
-%%%	   .
-%%%        L1:	select_val {x,0}, ALabel [... true => L2..., ...false => L3...]
-%%%	   .
-%%%	   .
-%%%	   .
-%%%        L2: ....      L3: ....
-%%%
-%%%  the first two instructions can be replaced with
-%%%
-%%%		test is_eq_exact L3 Src1 Src2
-%%%		jump L2
-%%%
-%%%  provided that {x,0} is killed at both L2 and L3.
-%%%
+%%% Dead code is code that is executed but has no effect. This
+%%% optimization pass either removes dead code or jumps around it,
+%%% potentially making it unreachable and a target for the
+%%% the beam_jump pass.
 
 -import(lists, [mapfoldl/3,reverse/1]).
 
@@ -173,12 +71,39 @@ move_move_into_block([I|Is], Acc) ->
 move_move_into_block([], Acc) -> reverse(Acc).
 
 %%%
-%%% Scan instructions in execution order and remove dead code.
+%%% Scan instructions in execution order and remove redundant 'move'
+%%% instructions. 'move' instructions are redundant if we know that
+%%% the register already contains the value being assigned, as in the
+%%% following code:
+%%%
+%%%           test is_eq_exact SomeLabel Src Dst
+%%%           move Src Dst
+%%%
+%%% or in:
+%%%
+%%%           test is_nil SomeLabel Dst
+%%%           move nil Dst
+%%%
+%%% or in:
+%%%
+%%%           select_val Register FailLabel [... Literal => L1...]
+%%%                      .
+%%%                      .
+%%%                      .
+%%%   L1:     move Literal Register
+%%%
+%%% Also add extra labels to help the second backward pass.
 %%%
 
 forward(Is, Lc) ->
-    forward(Is, gb_trees:empty(), Lc, []).
-
+    forward(Is, #{}, Lc, []).
+
+forward([{move,_,_}=Move|[{label,L}|_]=Is], D, Lc, Acc) ->
+    %% move/2 followed by jump/1 is optimized by backward/3.
+    forward([Move,{jump,{f,L}}|Is], D, Lc, Acc);
+forward([{bif,_,_,_,_}=Bif|[{label,L}|_]=Is], D, Lc, Acc) ->
+    %% bif/4 followed by jump/1 is optimized by backward/3.
+    forward([Bif,{jump,{f,L}}|Is], D, Lc, Acc);
 forward([{block,[]}|Is], D, Lc, Acc) ->
     %% Empty blocks can prevent optimizations.
     forward(Is, D, Lc, Acc);
@@ -190,21 +115,24 @@ forward([{label,Lbl}=LblI,{block,[{set,[Dst],[Lit],move}|BlkIs]}=Blk|Is], D, Lc,
     %% cannot be reached in any other way than through the select_val/3
     %% instruction (i.e. there can be no fallthrough to such label and
     %% it cannot be referenced by, for example, a jump/1 instruction).
-    Block = case gb_trees:lookup({Lbl,Dst}, D) of
-		{value,Lit} -> {block,BlkIs}; %Safe to remove move instruction.
-		_ -> Blk		      %Must keep move instruction.
-	    end,
+    Key = {Lbl,Dst},
+    Block = case D of
+                #{Key := Lit} -> {block,BlkIs}; %Safe to remove move instruction.
+                _ -> Blk                        %Must keep move instruction.
+            end,
     forward([Block|Is], D, Lc, [LblI|Acc]);
 forward([{label,Lbl}=LblI|[{move,Lit,Dst}|Is1]=Is0], D, Lc, Acc) ->
     %% Assumption: The target labels in a select_val/3 instruction
     %% cannot be reached in any other way than through the select_val/3
     %% instruction (i.e. there can be no fallthrough to such label and
     %% it cannot be referenced by, for example, a jump/1 instruction).
-    Is = case gb_trees:lookup({Lbl,Dst}, D) of
-	     {value,Lit} -> Is1;     %Safe to remove move instruction.
-	     _ -> Is0		     %Keep move instruction.
+    Is = case maps:find({Lbl,Dst}, D) of
+	     {ok,Lit} -> Is1;     %Safe to remove move instruction.
+	     _ -> Is0		  %Keep move instruction.
 	 end,
     forward(Is, D, Lc, [LblI|Acc]);
+forward([{test,is_eq_exact,_,[Same,Same]}|Is], D, Lc, Acc) ->
+    forward(Is, D, Lc, Acc);
 forward([{test,is_eq_exact,_,[Dst,Src]}=I,
 	 {block,[{set,[Dst],[Src],move}|Bl]}|Is], D, Lc, Acc) ->
     forward([I,{block,Bl}|Is], D, Lc, Acc);
@@ -215,15 +143,13 @@ forward([{test,is_eq_exact,_,[Dst,Src]}=I,{move,Src,Dst}|Is], D, Lc, Acc) ->
     forward([I|Is], D, Lc, Acc);
 forward([{test,is_nil,_,[Dst]}=I,{move,nil,Dst}|Is], D, Lc, Acc) ->
     forward([I|Is], D, Lc, Acc);
-forward([{test,is_eq_exact,_,_}=I|Is], D, Lc, Acc) ->
-    case Is of
-	[{label,_}|_] -> forward(Is, D, Lc, [I|Acc]);
-	_ -> forward(Is, D, Lc+1, [{label,Lc},I|Acc])
-    end;
-forward([{test,is_ne_exact,_,_}=I|Is], D, Lc, Acc) ->
-    case Is of
-	[{label,_}|_] -> forward(Is, D, Lc, [I|Acc]);
-	_ -> forward(Is, D, Lc+1, [{label,Lc},I|Acc])
+forward([{test,_,_,_}=I|Is]=Is0, D, Lc, Acc) ->
+    %% Help the second, backward pass to by inserting labels after
+    %% relational operators so that they can be skipped if they are
+    %% known to be true.
+    case useful_to_insert_label(Is0) of
+	false -> forward(Is, D, Lc, [I|Acc]);
+	true -> forward(Is, D, Lc+1, [{label,Lc},I|Acc])
     end;
 forward([I|Is], D, Lc, Acc) ->
     forward(Is, D, Lc, [I|Acc]);
@@ -231,17 +157,57 @@ forward([], _, Lc, Acc) -> {Acc,Lc}.
 
 update_value_dict([Lit,{f,Lbl}|T], Reg, D0) ->
     Key = {Lbl,Reg},
-    D = case gb_trees:lookup(Key, D0) of
-	    none -> gb_trees:insert(Key, Lit, D0); %New.
-	    {value,inconsistent} -> D0;		%Inconsistent.
-	    {value,_} -> gb_trees:update(Key, inconsistent, D0)
-	end,
+    D = case D0 of
+            #{Key := inconsistent} -> D0;
+            #{Key := _} -> D0#{Key := inconsistent};
+            _ -> D0#{Key => Lit}
+        end,
     update_value_dict(T, Reg, D);
 update_value_dict([], _, D) -> D.
 
+useful_to_insert_label([_,{label,_}|_]) ->
+    false;
+useful_to_insert_label([{test,Op,_,_}|_]) ->
+    case Op of
+	is_lt -> true;
+	is_ge -> true;
+	is_eq_exact -> true;
+	is_ne_exact -> true;
+	_ -> false
+    end.
+
+%%%
+%%% Scan instructions in reverse execution order and try to
+%%% shortcut branch instructions.
+%%%
+%%% For example, in this code:
 %%%
-%%% Scan instructions in reverse execution order and remove dead code.
+%%%             move Literal Register
+%%%             jump L1
+%%%                .
+%%%                .
+%%%                .
+%%%     L1:     test is_{integer,atom} FailLabel Register
+%%%             select_val {x,0} FailLabel [... Literal => L2...]
+%%%                .
+%%%                .
+%%%                .
+%%%     L2:        ...
 %%%
+%%% the 'selectval' instruction will always transfer control to L2,
+%%% so we can just as well jump to L2 directly by rewriting the
+%%% first part of the sequence like this:
+%%%
+%%%           move Literal Register
+%%%           jump L2
+%%%
+%%% If register Register is killed at label L2, we can remove the
+%%% 'move' instruction, leaving just the 'jump' instruction:
+%%%
+%%%           jump L2
+%%%
+%%% These transformations may leave parts of the code unreachable.
+%%% The beam_jump pass will remove the unreachable code.
 
 backward(Is, D) ->
     backward(Is, D, []).
@@ -277,15 +243,8 @@ backward([{select,select_val,Reg,{f,Fail0},List0}|Is], D, Acc) ->
     Fail = shortcut_bs_test(Fail1, Is, D),
     Sel = {select,select_val,Reg,{f,Fail},List},
     backward(Is, D, [Sel|Acc]);
-backward([{jump,{f,To0}},{move,Src,Reg}=Move0|Is], D, Acc) ->
-    {To,Move} = case Src of
-		    {atom,Val0} ->
-			To1 = shortcut_select_label(To0, Reg, Val0, D),
-			{To2,Val} = shortcut_boolean_label(To1, Reg, Val0, D),
-			{To2,{move,{atom,Val},Reg}};
-		    _ ->
-			{shortcut_label(To0, D),Move0}
-		end,
+backward([{jump,{f,To0}},{move,Src,Reg}=Move|Is], D, Acc) ->
+    To = shortcut_select_label(To0, Reg, Src, D),
     Jump = {jump,{f,To}},
     case beam_utils:is_killed_at(Reg, To, D) of
 	false -> backward([Move|Is], D, [Jump|Acc]);
@@ -297,32 +256,39 @@ backward([{jump,{f,To}}=J|[{bif,Op,_,Ops,Reg}|Is]=Is0], D, Acc) ->
     catch
 	throw:not_possible -> backward(Is0, D, [J|Acc])
     end;
+backward([{test,bs_start_match2,F,_,[R,_],Ctxt}=I|Is], D,
+	 [{test,bs_match_string,F,[Ctxt,Bs]},
+	  {test,bs_test_tail2,F,[Ctxt,0]}|Acc0]=Acc) ->
+    case beam_utils:is_killed(Ctxt, Acc0, D) of
+	true ->
+	    Eq = {test,is_eq_exact,F,[R,{literal,Bs}]},
+	    backward(Is, D, [Eq|Acc0]);
+	false ->
+	    backward(Is, D, [I|Acc])
+    end;
 backward([{test,bs_start_match2,{f,To0},Live,[Src|_]=Info,Dst}|Is], D, Acc) ->
     To = shortcut_bs_start_match(To0, Src, D),
     I = {test,bs_start_match2,{f,To},Live,Info,Dst},
     backward(Is, D, [I|Acc]);
-backward([{test,is_eq_exact,{f,To0},[Reg,{atom,Val}]=Ops}|Is], D, Acc) ->
-    To1 = shortcut_bs_test(To0, Is, D),
-    To = shortcut_fail_label(To1, Reg, Val, D),
-    I = combine_eqs(To, Ops, D, Acc),
-    backward(Is, D, [I|Acc]);
 backward([{test,Op,{f,To0},Ops0}|Is], D, Acc) ->
     To1 = shortcut_bs_test(To0, Is, D),
     To2 = shortcut_label(To1, D),
+    To3 = shortcut_rel_op(To2, Op, Ops0, D),
+
     %% Try to shortcut a repeated test:
     %%
     %%        test Op {f,Fail1} Operands	test Op {f,Fail2} Operands
     %%        . . .		          ==>   ...
     %% Fail1: test Op {f,Fail2} Operands        Fail1: test Op {f,Fail2} Operands
     %%
-    To = case beam_utils:code_at(To2, D) of
-	     [{test,Op,{f,To3},Ops}|_] ->
+    To = case beam_utils:code_at(To3, D) of
+	     [{test,Op,{f,To4},Ops}|_] ->
 		 case equal_ops(Ops0, Ops) of
-		     true -> To3;
-		     false -> To2
+		     true -> To4;
+		     false -> To3
 		 end;
 	     _Code ->
-		 To2
+		 To3
 	 end,
     I = case Op of
 	    is_eq_exact -> combine_eqs(To, Ops0, D, Acc);
@@ -367,8 +333,8 @@ equal_ops([Op|T0], [Op|T1]) ->
 equal_ops([], []) -> true;
 equal_ops(_, _) -> false.
     
-shortcut_select_list([{_,Val}=Lit,{f,To0}|T], Reg, D, Acc) ->
-    To = shortcut_select_label(To0, Reg, Val, D),
+shortcut_select_list([Lit,{f,To0}|T], Reg, D, Acc) ->
+    To = shortcut_select_label(To0, Reg, Lit, D),
     shortcut_select_list(T, Reg, D, [{f,To},Lit|Acc]);
 shortcut_select_list([], _, _, Acc) -> reverse(Acc).
 
@@ -378,58 +344,29 @@ shortcut_label(To0, D) ->
 	_ -> To0
     end.
 
-shortcut_select_label(To0, Reg, Val, D) ->
-    case beam_utils:code_at(To0, D) of
- 	[{jump,{f,To}}|_] ->
- 	    shortcut_select_label(To, Reg, Val, D);
-	[{test,is_atom,_,[Reg]},{select,select_val,Reg,{f,Fail},Map}|_] ->
-	    To = find_select_val(Map, Val, Fail),
-	    shortcut_select_label(To, Reg, Val, D);
-  	[{test,is_eq_exact,{f,_},[Reg,{atom,Val}]},{label,To}|_] when is_atom(Val) ->
-	    shortcut_select_label(To, Reg, Val, D);
-  	[{test,is_eq_exact,{f,_},[Reg,{atom,Val}]},{jump,{f,To}}|_] when is_atom(Val) ->
-	    shortcut_select_label(To, Reg, Val, D);
-  	[{test,is_eq_exact,{f,To},[Reg,{atom,AnotherVal}]}|_]
-	when is_atom(Val), Val =/= AnotherVal ->
-	    shortcut_select_label(To, Reg, Val, D);
-  	[{test,is_ne_exact,{f,To},[Reg,{atom,Val}]}|_] when is_atom(Val) ->
-	    shortcut_select_label(To, Reg, Val, D);
-  	[{test,is_ne_exact,{f,_},[Reg,{atom,_}]},{label,To}|_] when is_atom(Val) ->
-	    shortcut_select_label(To, Reg, Val, D);
-	[{test,is_tuple,{f,To},[Reg]}|_] when is_atom(Val) ->
-	    shortcut_select_label(To, Reg, Val, D);
-	_ ->
-	    To0
-    end.
-
-shortcut_fail_label(To0, Reg, Val, D) ->
-    case beam_utils:code_at(To0, D) of
- 	[{jump,{f,To}}|_] ->
-	    shortcut_fail_label(To, Reg, Val, D);
-  	[{test,is_eq_exact,{f,To},[Reg,{atom,Val}]}|_] when is_atom(Val) ->
-	    shortcut_fail_label(To, Reg, Val, D);
-	_ ->
-	    To0
-    end.
+shortcut_select_label(To, Reg, Lit, D) ->
+    shortcut_rel_op(To, is_ne_exact, [Reg,Lit], D).
 
-shortcut_boolean_label(To0, Reg, Bool0, D) when is_boolean(Bool0) ->
-    case beam_utils:code_at(To0, D) of
-	[{line,_},{bif,'not',_,[Reg],Reg},{jump,{f,To}}|_] ->
-	    Bool = not Bool0,
-	    {shortcut_select_label(To, Reg, Bool, D),Bool};
-	_ ->
-	    {To0,Bool0}
-    end;
-shortcut_boolean_label(To, _, Bool, _) -> {To,Bool}.
-
-find_select_val([{_,Val},{f,To}|_], Val, _) -> To;
-find_select_val([{_,_}, {f,_}|T], Val, Fail) ->
-    find_select_val(T, Val, Fail);
-find_select_val([], _, Fail) -> Fail.
+%% Replace a comparison operator with a test instruction and a jump.
+%% For example, if we have this code:
+%%
+%%     	  bif '=:=' Fail Src1 Src2 {x,0}
+%%    	  jump L1
+%%           .
+%%           .
+%%           .
+%%   L1:  select_val {x,0} FailLabel [... true => L2..., ...false => L3...]
+%%
+%% the first two instructions can be replaced with
+%%
+%%        test is_eq_exact L3 Src1 Src2
+%%	  jump L2
+%%
+%% provided that {x,0} is killed at both L2 and L3.
 
 replace_comp_op(To, Reg, Op, Ops, D) ->
-    False = comp_op_find_shortcut(To, Reg, false, D),
-    True = comp_op_find_shortcut(To, Reg, true, D),
+    False = comp_op_find_shortcut(To, Reg, {atom,false}, D),
+    True = comp_op_find_shortcut(To, Reg, {atom,true}, D),
     [bif_to_test(Op, Ops, False),{jump,{f,True}}].
 
 comp_op_find_shortcut(To0, Reg, Val, D) ->
@@ -461,9 +398,9 @@ not_possible() -> throw(not_possible).
 %%
 %%      is_eq_exact F1 Reg Lit1		    select_val Reg F2 [ Lit1 L1
 %%   L1:                .                                       Lit2 L2 ]
-%%              	.
-%%                	.	     ==>
-%%                	.
+%%                      .
+%%                      .	     ==>
+%%                      .
 %%   F1:  is_eq_exact F2 Reg Lit2          F1: is_eq_exact F2 Reg Lit2
 %%   L2:  ....				   L2:
 %%
@@ -488,31 +425,26 @@ remove_from_list(Lit, [Val,{f,_}=Fail|T]) ->
     [Val,Fail|remove_from_list(Lit, T)];
 remove_from_list(_, []) -> [].
 
-%% shortcut_bs_test(TargetLabel, [Instruction], D) -> TargetLabel'
-%%  Try to shortcut the failure label for a bit syntax matching.
-%%  We know that the binary contains at least Bits bits after
-%%  the latest save point.
+%% shortcut_bs_test(TargetLabel, ReversedInstructions, D) -> TargetLabel'
+%%  Try to shortcut the failure label for bit syntax matching.
 
 shortcut_bs_test(To, Is, D) ->
     shortcut_bs_test_1(beam_utils:code_at(To, D), Is, To, D).
 
-shortcut_bs_test_1([{bs_restore2,Reg,SavePoint}|Is], PrevIs, To, D) ->
-    shortcut_bs_test_2(Is, {Reg,SavePoint}, PrevIs, To, D);
-shortcut_bs_test_1([_|_], _, To, _) -> To.
-
-shortcut_bs_test_2([{label,_}|Is], Save, PrevIs, To, D) ->
-    shortcut_bs_test_2(Is, Save, PrevIs, To, D);
-shortcut_bs_test_2([{test,bs_test_tail2,{f,To},[_,TailBits]}|_],
-		   {Reg,_Point} = RP, PrevIs, To0, D) ->
-    case count_bits_matched(PrevIs, RP, 0) of
+shortcut_bs_test_1([{bs_restore2,Reg,SavePoint},
+		    {label,_},
+		    {test,bs_test_tail2,{f,To},[_,TailBits]}|_],
+		   PrevIs, To0, D) ->
+    case count_bits_matched(PrevIs, {Reg,SavePoint}, 0) of
 	Bits when Bits > TailBits ->
 	    %% This instruction will fail. We know because a restore has been
-	    %% done from the previous point SavePoint in the binary, and we also know
-	    %% that the binary contains at least Bits bits from SavePoint.
+	    %% done from the previous point SavePoint in the binary, and we
+	    %% also know that the binary contains at least Bits bits from
+	    %% SavePoint.
 	    %%
 	    %% Since we will skip a bs_restore2 if we shortcut to label To,
-	    %% we must now make sure that code at To does not depend on the position
-	    %% in the context in any way.
+	    %% we must now make sure that code at To does not depend on
+	    %% the position in the context in any way.
 	    case shortcut_bs_pos_used(To, Reg, D) of
 		false -> To;
 		true -> To0
@@ -520,15 +452,26 @@ shortcut_bs_test_2([{test,bs_test_tail2,{f,To},[_,TailBits]}|_],
 	_Bits ->
 	    To0
     end;
-shortcut_bs_test_2([_|_], _, _, To, _) -> To.
+shortcut_bs_test_1([_|_], _, To, _) -> To.
 
+%% counts_bits_matched(ReversedInstructions, SavePoint, Bits) -> Bits'
+%%  Given a reversed instruction stream, determine the minimum number
+%%  of bits that will be matched by bit syntax instructions up to the
+%%  given save point.
+
+count_bits_matched([{test,bs_get_utf8,{f,_},_,_,_}|Is], SavePoint, Bits) ->
+    count_bits_matched(Is, SavePoint, Bits+8);
+count_bits_matched([{test,bs_get_utf16,{f,_},_,_,_}|Is], SavePoint, Bits) ->
+    count_bits_matched(Is, SavePoint, Bits+16);
+count_bits_matched([{test,bs_get_utf32,{f,_},_,_,_}|Is], SavePoint, Bits) ->
+    count_bits_matched(Is, SavePoint, Bits+32);
 count_bits_matched([{test,_,_,_,[_,Sz,U,{field_flags,_}],_}|Is], SavePoint, Bits) ->
     case Sz of
 	{integer,N} -> count_bits_matched(Is, SavePoint, Bits+N*U);
 	_ -> count_bits_matched(Is, SavePoint, Bits)
     end;
-count_bits_matched([{test,bs_match_string,_,[_,Bits,_]}|Is], SavePoint, Bits0) ->
-    count_bits_matched(Is, SavePoint, Bits0+Bits);
+count_bits_matched([{test,bs_match_string,_,[_,Bs]}|Is], SavePoint, Bits) ->
+    count_bits_matched(Is, SavePoint, Bits+bit_size(Bs));
 count_bits_matched([{test,_,_,_}|Is], SavePoint, Bits) ->
     count_bits_matched(Is, SavePoint, Bits);
 count_bits_matched([{bs_save2,Reg,SavePoint}|_], {Reg,SavePoint}, Bits) ->
@@ -545,20 +488,332 @@ shortcut_bs_pos_used_1(Is, Reg, D) ->
     not beam_utils:is_killed(Reg, Is, D).
 
 %% shortcut_bs_start_match(TargetLabel, Reg) -> TargetLabel
-%%  A failing bs_start_match2 instruction means that the source
-%%  cannot be a binary, so there is no need to jump bs_context_to_binary/1
-%%  or another bs_start_match2 instruction.
+%%  A failing bs_start_match2 instruction means that the source (Reg)
+%%  cannot be a binary. That means that it is safe to skip
+%%  bs_context_to_binary instructions operating on Reg, and
+%%  bs_start_match2 instructions operating on Reg.
 
 shortcut_bs_start_match(To, Reg, D) ->
-    shortcut_bs_start_match_1(beam_utils:code_at(To, D), Reg, To).
+    shortcut_bs_start_match_1(beam_utils:code_at(To, D), Reg, To, D).
+
+shortcut_bs_start_match_1([{bs_context_to_binary,Reg}|Is], Reg, To, D) ->
+    shortcut_bs_start_match_1(Is, Reg, To, D);
+shortcut_bs_start_match_1([{jump,{f,To}}|_], Reg, _, D) ->
+    Code = beam_utils:code_at(To, D),
+    shortcut_bs_start_match_1(Code, Reg, To, D);
+shortcut_bs_start_match_1([{test,bs_start_match2,{f,To},_,[Reg|_],_}|_],
+			  Reg, _, D) ->
+    Code = beam_utils:code_at(To, D),
+    shortcut_bs_start_match_1(Code, Reg, To, D);
+shortcut_bs_start_match_1(_, _, To, _) ->
+    To.
+
+%% shortcut_rel_op(FailLabel, Operator, [Operand], D) -> FailLabel'
+%%  Try to shortcut the given test instruction. Example:
+%%
+%%           is_ge L1 {x,0} 48
+%%     .
+%%     .
+%%     .
+%%     L1:   is_ge L2 {x,0} 65
+%%
+%%  The first test instruction can be rewritten to "is_ge L2 {x,0} 48"
+%%  since the instruction at L1 will also fail.
+%%
+%%  If there are instructions between L1 and the other test instruction
+%%  it may still be possible to do the shortcut. For example:
+%%
+%%     L1:   is_eq_exact L3 {x,0} 92
+%%           is_ge L2 {x,0} 65
+%%
+%%  Since the first test instruction failed, we know that {x,0} must
+%%  be less than 48; therefore, we know that {x,0} cannot be equal to
+%%  92 and the jump to L3 cannot happen.
+
+shortcut_rel_op(To, Op, Ops, D) ->
+    case normalize_op({test,Op,{f,To},Ops}) of
+	{{NormOp,A,B},_} ->
+	    Normalized = {negate_op(NormOp),A,B},
+	    shortcut_rel_op_fp(To, Normalized, D);
+	{_,_} ->
+	    To;
+	error ->
+	    To
+    end.
 
-shortcut_bs_start_match_1([{bs_context_to_binary,Reg}|Is], Reg, To) ->
-    shortcut_bs_start_match_2(Is, Reg, To);
-shortcut_bs_start_match_1(_, _, To) -> To.
+shortcut_rel_op_fp(To0, Normalized, D) ->
+    Code = beam_utils:code_at(To0, D),
+    case shortcut_any_label(Code, Normalized) of
+	error ->
+	    To0;
+	To ->
+	    shortcut_rel_op_fp(To, Normalized, D)
+    end.
 
-shortcut_bs_start_match_2([{jump,{f,To}}|_], _, _) ->
-    To;
-shortcut_bs_start_match_2([{test,bs_start_match2,{f,To},_,[Reg|_],_}|_], Reg, _) ->
-    To;
-shortcut_bs_start_match_2(_Is, _Reg, To) ->
-    To.
+%% shortcut_any_label([Instruction], PrevCondition) -> FailLabel | error
+%%  Using PrevCondition (a previous condition known to be true),
+%%  try to shortcut to another failure label.
+
+shortcut_any_label([{jump,{f,Lbl}}|_], _Prev) ->
+    Lbl;
+shortcut_any_label([{label,Lbl}|_], _Prev) ->
+    Lbl;
+shortcut_any_label([{select,select_val,R,{f,Fail},L}|_], Prev) ->
+    shortcut_selectval(L, R, Fail, Prev);
+shortcut_any_label([I|Is], Prev) ->
+    case normalize_op(I) of
+	error ->
+	    error;
+	{Normalized,Fail} ->
+	    %% We have a relational operator.
+	    case will_succeed(Prev, Normalized) of
+		no ->
+		    %% This test instruction will always branch
+		    %% to Fail.
+		    Fail;
+		yes ->
+		    %% This test instruction will never branch,
+		    %% so we will look at the next instruction.
+		    shortcut_any_label(Is, Prev);
+		maybe ->
+		    %% May or may not branch. From now on, we can only
+		    %% shortcut to the this specific failure label
+		    %% Fail.
+		    shortcut_specific_label(Is, Fail, Prev)
+	    end
+    end.
+
+%% shortcut_specific_label([Instruction], FailLabel, PrevCondition) ->
+%%    FailLabel | error
+%%  We have previously encountered a test instruction that may or
+%%  may not branch to FailLabel. Therefore we are only allowed
+%%  to do the shortcut to the same fail label (FailLabel).
+
+shortcut_specific_label([{label,_}|Is], Fail, Prev) ->
+    shortcut_specific_label(Is, Fail, Prev);
+shortcut_specific_label([{select,select_val,R,{f,F},L}|_], Fail, Prev) ->
+    case shortcut_selectval(L, R, F, Prev) of
+	Fail -> Fail;
+	_ -> error
+    end;
+shortcut_specific_label([I|Is], Fail, Prev) ->
+    case normalize_op(I) of
+	error ->
+	    error;
+	{Normalized,Fail} ->
+	    case will_succeed(Prev, Normalized) of
+		no ->
+		    %% Will branch to FailLabel.
+		    Fail;
+		yes ->
+		    %% Will definitely never branch.
+		    shortcut_specific_label(Is, Fail, Prev);
+		maybe ->
+		    %% May branch, but still OK since it will branch
+		    %% to FailLabel.
+		    shortcut_specific_label(Is, Fail, Prev)
+	    end;
+	{Normalized,_} ->
+	    %% This test instruction will branch to a different
+	    %% fail label, if it branches at all.
+	    case will_succeed(Prev, Normalized) of
+		yes ->
+		    %% Still OK, since the branch will never be
+		    %% taken.
+		    shortcut_specific_label(Is, Fail, Prev);
+		no ->
+		    %% Give up. The branch will definitely be taken
+		    %% to a different fail label.
+		    error;
+		maybe ->
+		    %% Give up. If the branch is taken, it will be
+		    %% to a different fail label.
+		    error
+	    end
+    end.
+
+
+%% shortcut_selectval(List, Reg, Fail, PrevCond) -> FailLabel | error
+%%  Try to shortcut a selectval instruction. A selectval instruction
+%%  is equivalent to the following instruction sequence:
+%%
+%%      is_ne_exact L1 Reg Value1
+%%              .
+%%              .
+%%              .
+%%      is_ne_exact LN Reg ValueN
+%%      jump DefaultFailLabel
+%%
+shortcut_selectval([Val,{f,Lbl}|T], R, Fail, Prev) ->
+    case will_succeed(Prev, {'=/=',R,get_literal(Val)}) of
+	yes -> shortcut_selectval(T, R, Fail, Prev);
+	no -> Lbl;
+	maybe -> error
+    end;
+shortcut_selectval([], _, Fail, _) -> Fail.
+
+%% will_succeed(PrevCondition, Condition) -> yes | no | maybe
+%%  PrevCondition is a condition known to be true. This function
+%%  will tell whether Condition will succeed.
+
+will_succeed({Op1,Reg,A}, {Op2,Reg,B}) ->
+    will_succeed_1(Op1, A, Op2, B);
+will_succeed({'=:=',Reg,{literal,A}}, {TypeTest,Reg}) ->
+    case erlang:TypeTest(A) of
+	false -> no;
+	true -> yes
+    end;
+will_succeed({_,_,_}, maybe) ->
+    maybe;
+will_succeed({_,_,_}, Test) when is_tuple(Test) ->
+    maybe.
+
+will_succeed_1('=:=', A, '<', B) ->
+    if
+	B =< A -> no;
+	true -> yes
+    end;
+will_succeed_1('=:=', A, '=<', B) ->
+    if
+	B < A -> no;
+	true -> yes
+    end;
+will_succeed_1('=:=', A, '=:=', B) ->
+    if
+	A =:= B -> yes;
+	true -> no
+    end;
+will_succeed_1('=:=', A, '=/=', B) ->
+    if
+	A =:= B -> no;
+	true -> yes
+    end;
+will_succeed_1('=:=', A, '>=', B) ->
+    if
+	B > A -> no;
+	true -> yes
+    end;
+will_succeed_1('=:=', A, '>', B) ->
+    if
+	B >= A -> no;
+	true -> yes
+    end;
+
+will_succeed_1('=/=', A, '=/=', B) when A =:= B -> yes;
+will_succeed_1('=/=', A, '=:=', B) when A =:= B -> no;
+
+will_succeed_1('<', A, '=:=', B)  when B >= A -> no;
+will_succeed_1('<', A, '=/=', B)  when B >= A -> yes;
+will_succeed_1('<', A, '<',   B)  when B >= A -> yes;
+will_succeed_1('<', A, '=<',  B)  when B > A  -> yes;
+will_succeed_1('<', A, '>=',  B)  when B > A  -> no;
+will_succeed_1('<', A, '>',   B)  when B >= A -> no;
+
+will_succeed_1('=<', A, '=:=', B) when B > A  -> no;
+will_succeed_1('=<', A, '=/=', B) when B > A  -> yes;
+will_succeed_1('=<', A, '<',   B) when B > A  -> yes;
+will_succeed_1('=<', A, '=<',  B) when B >= A -> yes;
+will_succeed_1('=<', A, '>=',  B) when B > A  -> no;
+will_succeed_1('=<', A, '>',   B) when B >= A -> no;
+
+will_succeed_1('>=', A, '=:=', B) when B < A  -> no;
+will_succeed_1('>=', A, '=/=', B) when B < A  -> yes;
+will_succeed_1('>=', A, '<',   B) when B =< A -> no;
+will_succeed_1('>=', A, '=<',  B) when B < A  -> no;
+will_succeed_1('>=', A, '>=',  B) when B =< A -> yes;
+will_succeed_1('>=', A, '>',   B) when B < A  -> yes;
+
+will_succeed_1('>', A, '=:=', B)  when B =< A -> no;
+will_succeed_1('>', A, '=/=', B)  when B =< A -> yes;
+will_succeed_1('>', A, '<',   B)  when B =< A -> no;
+will_succeed_1('>', A, '=<',  B)  when B < A  -> no;
+will_succeed_1('>', A, '>=',  B)  when B =< A -> yes;
+will_succeed_1('>', A, '>',   B)  when B < A  -> yes;
+
+will_succeed_1(_, _, _, _) -> maybe.
+
+%% normalize_op(Instruction) -> {Normalized,FailLabel} | error
+%%    Normalized = {Operator,Register,Literal} |
+%%                 {TypeTest,Register} |
+%%                 maybe
+%%    Operation = '<' | '=<' | '=:=' | '=/=' | '>=' | '>'
+%%    TypeTest = is_atom | is_integer ...
+%%    Literal = {literal,Term}
+%%
+%%  Normalize a relational operator to facilitate further
+%%  comparisons between operators. Always make the register
+%%  operand the first operand. Thus the following instruction:
+%%
+%%    {test,is_ge,{f,99},{integer,13},{x,0}}
+%%
+%%  will be normalized to:
+%%
+%%    {'=<',{x,0},{literal,13}}
+%%
+%%  NOTE: Bit syntax test instructions are scary. They may change the
+%%  state of match contexts and update registers, so we don't dare
+%%  mess with them.
+
+normalize_op({test,is_ge,{f,Fail},Ops}) ->
+    normalize_op_1('>=', Ops, Fail);
+normalize_op({test,is_lt,{f,Fail},Ops}) ->
+    normalize_op_1('<', Ops, Fail);
+normalize_op({test,is_eq_exact,{f,Fail},Ops}) ->
+    normalize_op_1('=:=', Ops, Fail);
+normalize_op({test,is_ne_exact,{f,Fail},Ops}) ->
+    normalize_op_1('=/=', Ops, Fail);
+normalize_op({test,is_nil,{f,Fail},[R]}) ->
+    normalize_op_1('=:=', [R,nil], Fail);
+normalize_op({test,Op,{f,Fail},[R]}) ->
+    case erl_internal:new_type_test(Op, 1) of
+	true -> {{Op,R},Fail};
+	false -> {maybe,Fail}
+    end;
+normalize_op({test,_,{f,Fail},_}=I) ->
+    case beam_utils:is_pure_test(I) of
+	true -> {maybe,Fail};
+	false -> error
+    end;
+normalize_op(_) ->
+    error.
+
+normalize_op_1(Op, [Op1,Op2], Fail) ->
+    case {get_literal(Op1),get_literal(Op2)} of
+	{error,error} ->
+	    %% Both operands are registers.
+	    {maybe,Fail};
+	{error,Lit} ->
+	    {{Op,Op1,Lit},Fail};
+	{Lit,error} ->
+	    {{turn_op(Op),Op2,Lit},Fail};
+	{_,_} ->
+	    %% Both operands are literals. Can probably only
+	    %% happen if the Core Erlang optimizations passes were
+	    %% turned off, so don't bother trying to do something
+	    %% smart here.
+	    {maybe,Fail}
+    end.
+
+turn_op('<') -> '>';
+turn_op('>=') -> '=<';
+turn_op('=:='=Op) -> Op;
+turn_op('=/='=Op) -> Op.
+
+negate_op('>=') -> '<';
+negate_op('<') -> '>=';
+negate_op('=<') -> '>';
+negate_op('>') -> '=<';
+negate_op('=:=') -> '=/=';
+negate_op('=/=') -> '=:='.
+
+get_literal({atom,Val}) ->
+    {literal,Val};
+get_literal({integer,Val}) ->
+    {literal,Val};
+get_literal({float,Val}) ->
+    {literal,Val};
+get_literal(nil) ->
+    {literal,[]};
+get_literal({literal,_}=Lit) ->
+    Lit;
+get_literal({_,_}) -> error.
diff --git a/lib/compiler/src/beam_dict.erl b/lib/compiler/src/beam_dict.erl
index ea51673fa3..b1aa98278e 100644
--- a/lib/compiler/src/beam_dict.erl
+++ b/lib/compiler/src/beam_dict.erl
@@ -31,22 +31,22 @@
 
 -type index() :: non_neg_integer().
 
--type atom_tab()   :: gb_trees:tree(atom(), index()).
+-type atom_tab()   :: #{atom() => index()}.
 -type import_tab() :: gb_trees:tree(mfa(), index()).
--type fname_tab()  :: gb_trees:tree(Name :: term(), index()).
--type line_tab()   :: gb_trees:tree({Fname :: index(), Line :: term()}, index()).
+-type fname_tab()  :: #{Name :: term() => index()}.
+-type line_tab()   :: #{{Fname :: index(), Line :: term()} => index()}.
 -type literal_tab() :: dict:dict(Literal :: term(), index()).
 
 -record(asm,
-	{atoms = gb_trees:empty()   :: atom_tab(),
+	{atoms = #{}                :: atom_tab(),
 	 exports = []		    :: [{label(), arity(), label()}],
 	 locals = []		    :: [{label(), arity(), label()}],
 	 imports = gb_trees:empty() :: import_tab(),
 	 strings = <<>>		    :: binary(),	%String pool
 	 lambdas = [],				%[{...}]
 	 literals = dict:new()	    :: literal_tab(),
-	 fnames = gb_trees:empty()  :: fname_tab(),
-	 lines = gb_trees:empty()   :: line_tab(),
+	 fnames = #{}               :: fname_tab(),
+	 lines = #{}                :: line_tab(),
 	 num_lines = 0		    :: non_neg_integer(), %Number of line instructions
 	 next_import = 0	    :: non_neg_integer(),
 	 string_offset = 0	    :: non_neg_integer(),
@@ -65,7 +65,7 @@ new() ->
 %% Remember the highest opcode.
 -spec opcode(non_neg_integer(), bdict()) -> bdict().
 
-opcode(Op, Dict) when Dict#asm.highest_opcode > Op -> Dict;
+opcode(Op, Dict) when Dict#asm.highest_opcode >= Op -> Dict;
 opcode(Op, Dict) -> Dict#asm{highest_opcode=Op}.
 
 %% Returns the highest opcode encountered.
@@ -77,14 +77,12 @@ highest_opcode(#asm{highest_opcode=Op}) -> Op.
 %%    atom(Atom, Dict) -> {Index,Dict'}
 -spec atom(atom(), bdict()) -> {pos_integer(), bdict()}.
 
-atom(Atom, #asm{atoms=Atoms0}=Dict) when is_atom(Atom) ->
-    case gb_trees:lookup(Atom, Atoms0) of
-	{value,Index} ->
-	    {Index,Dict};
-	none ->
-	    NextIndex = gb_trees:size(Atoms0) + 1,
-	    Atoms = gb_trees:insert(Atom, NextIndex, Atoms0),
-	    {NextIndex,Dict#asm{atoms=Atoms}}
+atom(Atom, #asm{atoms=Atoms}=Dict) when is_atom(Atom) ->
+    case Atoms of
+        #{ Atom := Index} -> {Index,Dict};
+        _ ->
+            NextIndex = maps:size(Atoms) + 1,
+            {NextIndex,Dict#asm{atoms=Atoms#{Atom=>NextIndex}}}
     end.
 
 %% Remembers an exported function.
@@ -177,26 +175,22 @@ line([], #asm{num_lines=N}=Dict) ->
     %% No location available. Return the special pre-defined
     %% index 0.
     {0,Dict#asm{num_lines=N+1}};
-line([{location,Name,Line}], #asm{lines=Lines0,num_lines=N}=Dict0) ->
+line([{location,Name,Line}], #asm{lines=Lines,num_lines=N}=Dict0) ->
     {FnameIndex,Dict1} = fname(Name, Dict0),
-    case gb_trees:lookup({FnameIndex,Line}, Lines0) of
-	{value,Index} ->
-	    {Index,Dict1#asm{num_lines=N+1}};
-	none ->
-	    Index = gb_trees:size(Lines0) + 1,
-	    Lines = gb_trees:insert({FnameIndex,Line}, Index, Lines0),
-	    Dict = Dict1#asm{lines=Lines,num_lines=N+1},
-	    {Index,Dict}
+    Key = {FnameIndex,Line},
+    case Lines of
+        #{Key := Index} -> {Index,Dict1#asm{num_lines=N+1}};
+        _ ->
+	    Index = maps:size(Lines) + 1,
+            {Index, Dict1#asm{lines=Lines#{Key=>Index},num_lines=N+1}}
     end.
 
-fname(Name, #asm{fnames=Fnames0}=Dict) ->
-    case gb_trees:lookup(Name, Fnames0) of
-	{value,Index} ->
-	    {Index,Dict};
-	none ->
-	    Index = gb_trees:size(Fnames0),
-	    Fnames = gb_trees:insert(Name, Index, Fnames0),
-	    {Index,Dict#asm{fnames=Fnames}}
+fname(Name, #asm{fnames=Fnames}=Dict) ->
+    case Fnames of
+        #{Name := Index} -> {Index,Dict};
+        _ ->
+            Index = maps:size(Fnames),
+	    {Index,Dict#asm{fnames=Fnames#{Name=>Index}}}
     end.
 
 %% Returns the atom table.
@@ -204,14 +198,12 @@ fname(Name, #asm{fnames=Fnames0}=Dict) ->
 -spec atom_table(bdict()) -> {non_neg_integer(), [[non_neg_integer(),...]]}.
 
 atom_table(#asm{atoms=Atoms}) ->
-    NumAtoms = gb_trees:size(Atoms),
-    Sorted = lists:keysort(2, gb_trees:to_list(Atoms)),
-    Fun = fun({A,_}) ->
-		  L = atom_to_list(A),
-		  [length(L)|L]
-	  end,
-    AtomTab = lists:map(Fun, Sorted),
-    {NumAtoms,AtomTab}.
+    NumAtoms = maps:size(Atoms),
+    Sorted = lists:keysort(2, maps:to_list(Atoms)),
+    {NumAtoms,[begin
+                   L = atom_to_list(A),
+                   [length(L)|L]
+               end || {A,_} <- Sorted]}.
 
 %% Returns the table of local functions.
 %%    local_table(Dict) -> {NumLocals, [{Function, Arity, Label}...]}
@@ -273,11 +265,11 @@ my_term_to_binary(Term) ->
      non_neg_integer(),[{non_neg_integer(),non_neg_integer()}]}.
 
 line_table(#asm{fnames=Fnames0,lines=Lines0,num_lines=NumLineInstrs}) ->
-    NumFnames = gb_trees:size(Fnames0),
-    Fnames1 = lists:keysort(2, gb_trees:to_list(Fnames0)),
+    NumFnames = maps:size(Fnames0),
+    Fnames1 = lists:keysort(2, maps:to_list(Fnames0)),
     Fnames = [Name || {Name,_} <- Fnames1],
-    NumLines = gb_trees:size(Lines0),
-    Lines1 = lists:keysort(2, gb_trees:to_list(Lines0)),
+    NumLines = maps:size(Lines0),
+    Lines1 = lists:keysort(2, maps:to_list(Lines0)),
     Lines = [L || {L,_} <- Lines1],
     {NumLineInstrs,NumFnames,Fnames,NumLines,Lines}.
 
diff --git a/lib/compiler/src/beam_flatten.erl b/lib/compiler/src/beam_flatten.erl
index 46835bece1..54e06df995 100644
--- a/lib/compiler/src/beam_flatten.erl
+++ b/lib/compiler/src/beam_flatten.erl
@@ -63,8 +63,7 @@ norm({set,[],[S,D],{set_tuple_element,I}}) -> {set_tuple_element,S,D,I};
 norm({set,[D1,D2],[S],get_list})          -> {get_list,S,D1,D2};
 norm({set,[D],[S|Puts],{alloc,R,{put_map,Op,F}}}) ->
     {put_map,F,Op,S,D,R,{list,Puts}};
-norm({set,Gets,[S],{get_map_elements,F}}) ->
-    {get_map_elements,F,S,{list,Gets}};
+%% get_map_elements is always handled in beam_split (moved out of block)
 norm({set,[],[],remove_message})   -> remove_message;
 norm({set,[],[],fclearerror}) -> fclearerror;
 norm({set,[],[],fcheckerror}) -> {fcheckerror,{f,0}}.
diff --git a/lib/compiler/src/beam_jump.erl b/lib/compiler/src/beam_jump.erl
index b952139f2c..80b2998ddc 100644
--- a/lib/compiler/src/beam_jump.erl
+++ b/lib/compiler/src/beam_jump.erl
@@ -127,7 +127,7 @@
 %%% on the program state.
 %%% 
 
--import(lists, [reverse/1,reverse/2,foldl/3,dropwhile/2]).
+-import(lists, [reverse/1,reverse/2,foldl/3]).
 
 module({Mod,Exp,Attr,Fs0,Lc}, _Opt) ->
     Fs = [function(F) || F <- Fs0],
@@ -152,20 +152,26 @@ function({function,Name,Arity,CLabel,Asm0}) ->
 share(Is0) ->
     %% We will get more sharing if we never fall through to a label.
     Is = eliminate_fallthroughs(Is0, []),
-    share_1(Is, dict:new(), [], []).
+    share_1(Is, #{}, [], []).
 
 share_1([{label,_}=Lbl|Is], Dict, [], Acc) ->
     share_1(Is, Dict, [], [Lbl|Acc]);
 share_1([{label,L}=Lbl|Is], Dict0, Seq, Acc) ->
-    case dict:find(Seq, Dict0) of
+    case maps:find(Seq, Dict0) of
 	error ->
-	    Dict = dict:store(Seq, L, Dict0),
+	    Dict = maps:put(Seq, L, Dict0),
 	    share_1(Is, Dict, [], [Lbl|Seq ++ Acc]);
 	{ok,Label} ->
 	    share_1(Is, Dict0, [], [Lbl,{jump,{f,Label}}|Acc])
     end;
 share_1([{func_info,_,_,_}=I|Is], _, [], Acc) ->
     reverse(Is, [I|Acc]);
+share_1([{'try',_,_}=I|Is], Dict0, Seq, Acc) ->
+    Dict = clean_non_sharable(Dict0),
+    share_1(Is, Dict, [I|Seq], Acc);
+share_1([{try_case,_}=I|Is], Dict0, Seq, Acc) ->
+    Dict = clean_non_sharable(Dict0),
+    share_1(Is, Dict, [I|Seq], Acc);
 share_1([I|Is], Dict, Seq, Acc) ->
     case is_unreachable_after(I) of
 	false ->
@@ -174,6 +180,24 @@ share_1([I|Is], Dict, Seq, Acc) ->
 	    share_1(Is, Dict, [I], Acc)
     end.
 
+clean_non_sharable(Dict) ->
+    %% We are passing in or out of a 'try' block. Remove
+    %% sequences that should not shared over the boundaries
+    %% of a 'try' block. Since the end of the sequence must match,
+    %% the only possible match between a sequence outside and
+    %% a sequence inside the 'try' block is a sequence that ends
+    %% with an instruction that causes an exception. Any sequence
+    %% that causes an exception must contain a line/1 instruction.
+    maps:filter(fun(K, _V) -> sharable_with_try(K) end, Dict).
+
+sharable_with_try([{line,_}|_]) ->
+    %% This sequence may cause an exception and may potentially
+    %% match a sequence on the other side of the 'try' block
+    %% boundary.
+    false;
+sharable_with_try([_|Is]) ->
+    sharable_with_try(Is);
+sharable_with_try([]) -> true.
 
 %% Eliminate all fallthroughs. Return the result reversed.
 
@@ -244,13 +268,13 @@ extract_seq_1(_, _) -> no.
 -record(st, {fc,				%Label for function class errors.
 	     entry,				%Entry label (must not be moved).
 	     mlbl,				%Moved labels.
-	     labels				%Set of referenced labels.
+             labels :: cerl_sets:set()          %Set of referenced labels.
 	    }).
 
 opt([{label,Fc}|_]=Is0, CLabel) ->
     Lbls = initial_labels(Is0),
     find_fixpoint(fun(Is) ->
-			  St = #st{fc=Fc,entry=CLabel,mlbl=dict:new(),
+			  St = #st{fc=Fc,entry=CLabel,mlbl=#{},
 				   labels=Lbls},
 			  opt(Is, [], St)
 		  end, Is0).
@@ -295,24 +319,29 @@ opt([{test,_,{f,_}=Lbl,_,_,_}=I|Is], Acc, St) ->
     opt(Is, [I|Acc], label_used(Lbl, St));
 opt([{select,_,_R,Fail,Vls}=I|Is], Acc, St) ->
     skip_unreachable(Is, [I|Acc], label_used([Fail|Vls], St));
-opt([{label,L}=I|Is], Acc, #st{entry=L}=St) ->
-    %% NEVER move the entry label.
-    opt(Is, [I|Acc], St);
-opt([{label,L1},{jump,{f,L2}}=I|Is], [Prev|Acc], St0) ->
-    St = St0#st{mlbl=dict:append(L2, L1, St0#st.mlbl)},
-    opt([Prev,I|Is], Acc, label_used({f,L2}, St));
 opt([{label,Lbl}=I|Is], Acc, #st{mlbl=Mlbl}=St0) ->
-    case dict:find(Lbl, Mlbl) of
+    case maps:find(Lbl, Mlbl) of
 	{ok,Lbls} ->
 	    %% Essential to remove the list of labels from the dictionary,
 	    %% since we will rescan the inserted labels.  We MUST rescan.
-	    St = St0#st{mlbl=dict:erase(Lbl, Mlbl)},
+	    St = St0#st{mlbl=maps:remove(Lbl, Mlbl)},
 	    insert_labels([Lbl|Lbls], Is, Acc, St);
 	error -> opt(Is, [I|Acc], St0)
     end;
-opt([{jump,{f,Lbl}},{label,Lbl}=I|Is], Acc, St) ->
-    opt([I|Is], Acc, St);
-opt([{jump,Lbl}=I|Is], Acc, St) ->
+opt([{jump,{f,_}=X}|[{label,_},{jump,X}|_]=Is], Acc, St) ->
+    opt(Is, Acc, St);
+opt([{jump,{f,Lbl}}|[{label,Lbl}|_]=Is], Acc, St) ->
+    opt(Is, Acc, St);
+opt([{jump,{f,L}=Lbl}=I|Is], Acc0, #st{mlbl=Mlbl0}=St0) ->
+    %% All labels before this jump instruction should now be
+    %% moved to the location of the jump's target.
+    {Lbls,Acc} = collect_labels(Acc0, St0),
+    St = case Lbls of
+	     [] -> St0;
+	     [_|_] ->
+		 Mlbl = maps_append_list(L, Lbls, Mlbl0),
+		 St0#st{mlbl=Mlbl}
+	 end,
     skip_unreachable(Is, [I|Acc], label_used(Lbl, St));
 %% Optimization: quickly handle some common instructions that don't
 %% have any failure labels and where is_unreachable_after(I) =:= false.
@@ -334,14 +363,20 @@ opt([I|Is], Acc, #st{labels=Used0}=St0) ->
     end;
 opt([], Acc, #st{fc=Fc,mlbl=Mlbl}) ->
     Code = reverse(Acc),
-    case dict:find(Fc, Mlbl) of
+    case maps:find(Fc, Mlbl) of
  	{ok,Lbls} -> insert_fc_labels(Lbls, Mlbl, Code);
  	error -> Code
     end.
 
+maps_append_list(K,Vs,M) ->
+    case M of
+        #{K:=Vs0} -> M#{K:=Vs0++Vs}; % same order as dict
+        _ -> M#{K => Vs}
+    end.
+
 insert_fc_labels([L|Ls], Mlbl, Acc0) ->
     Acc = [{label,L}|Acc0],
-    case dict:find(L, Mlbl) of
+    case maps:find(L, Mlbl) of
 	error ->
 	    insert_fc_labels(Ls, Mlbl, Acc);
 	{ok,Lbls} ->
@@ -349,6 +384,17 @@ insert_fc_labels([L|Ls], Mlbl, Acc0) ->
     end;
 insert_fc_labels([], _, Acc) -> Acc.
 
+collect_labels(Is, #st{entry=Entry}) ->
+    collect_labels_1(Is, Entry, []).
+
+collect_labels_1([{label,Entry}|_]=Is, Entry, Acc) ->
+    %% Never move the entry label.
+    {Acc,Is};
+collect_labels_1([{label,L}|Is], Entry, Acc) ->
+    collect_labels_1(Is, Entry, [L|Acc]);
+collect_labels_1(Is, _Entry, Acc) ->
+    {Acc,Is}.
+
 %% label_defined(Is, Label) -> true | false.
 %%  Test whether the label Label is defined at the start of the instruction
 %%  sequence, possibly preceeded by other label definitions.
@@ -394,7 +440,7 @@ skip_unreachable([], Acc, St) ->
 
 %% Add one or more label to the set of used labels.
 
-label_used({f,L}, St) -> St#st{labels=gb_sets:add(L, St#st.labels)};
+label_used({f,L}, St) -> St#st{labels=cerl_sets:add_element(L,St#st.labels)};
 label_used([H|T], St0) -> label_used(T, label_used(H, St0));
 label_used([], St) -> St;
 label_used(_Other, St) -> St.
@@ -402,7 +448,7 @@ label_used(_Other, St) -> St.
 %% Test if label is used.
 
 is_label_used(L, St) ->
-    gb_sets:is_member(L, St#st.labels).
+    cerl_sets:is_element(L, St#st.labels).
 
 %% is_unreachable_after(Instruction) -> boolean()
 %%  Test whether the code after Instruction is unreachable.
@@ -432,17 +478,17 @@ is_exit_instruction(_) -> false.
 %%  (including inside blocks).
 
 is_label_used_in(Lbl, Is) ->
-    is_label_used_in_1(Is, Lbl, gb_sets:empty()).
+    is_label_used_in_1(Is, Lbl, cerl_sets:new()).
 
 is_label_used_in_1([{block,Block}|Is], Lbl, Empty) ->
-    lists:any(fun(I) -> is_label_used_in_2(I, Lbl) end, Block)
+    lists:any(fun(I) -> is_label_used_in_block(I, Lbl) end, Block)
 	orelse is_label_used_in_1(Is, Lbl, Empty);
 is_label_used_in_1([I|Is], Lbl, Empty) ->
     Used = ulbl(I, Empty),
-    gb_sets:is_member(Lbl, Used) orelse is_label_used_in_1(Is, Lbl, Empty);
+    cerl_sets:is_element(Lbl, Used) orelse is_label_used_in_1(Is, Lbl, Empty);
 is_label_used_in_1([], _, _) -> false.
 
-is_label_used_in_2({set,_,_,Info}, Lbl) ->
+is_label_used_in_block({set,_,_,Info}, Lbl) ->
     case Info of
 	{bif,_,{f,F}} -> F =:= Lbl;
 	{alloc,_,{gc_bif,_,{f,F}}} -> F =:= Lbl;
@@ -452,7 +498,6 @@ is_label_used_in_2({set,_,_,Info}, Lbl) ->
 	{put_tuple,_} -> false;
 	{get_tuple_element,_} -> false;
 	{set_tuple_element,_} -> false;
-        {get_map_elements,{f,F}} -> F =:= Lbl;
 	{line,_} -> false;
 	_ when is_atom(Info) -> false
     end.
@@ -467,13 +512,10 @@ remove_unused_labels(Is) ->
     rem_unused(Is, Used, []).
 
 rem_unused([{label,Lbl}=I|Is0], Used, [Prev|_]=Acc) ->
-    case gb_sets:is_member(Lbl, Used) of
+    case cerl_sets:is_element(Lbl, Used) of
 	false ->
 	    Is = case is_unreachable_after(Prev) of
-		     true ->
-			 dropwhile(fun({label,_}) -> false;
-				      (_) -> true
-				   end, Is0);
+		     true -> drop_upto_label(Is0);
 		     false -> Is0
 		 end,
 	    rem_unused(Is, Used, Acc);
@@ -492,7 +534,11 @@ initial_labels([{line,_}|Is], Acc) ->
 initial_labels([{label,Lbl}|Is], Acc) ->
     initial_labels(Is, [Lbl|Acc]);
 initial_labels([{func_info,_,_,_},{label,Lbl}|_], Acc) ->
-    gb_sets:from_list([Lbl|Acc]).
+    cerl_sets:from_list([Lbl|Acc]).
+
+drop_upto_label([{label,_}|_]=Is) -> Is;
+drop_upto_label([_|Is]) -> drop_upto_label(Is);
+drop_upto_label([]) -> [].
 
 %% ulbl(Instruction, UsedGbSet) -> UsedGbSet'
 %%  Update the gb_set UsedGbSet with any function-local labels
@@ -536,10 +582,10 @@ ulbl({get_map_elements,Lbl,_Src,_List}, Used) ->
 ulbl(_, Used) -> Used.
 
 mark_used({f,0}, Used) -> Used;
-mark_used({f,L}, Used) -> gb_sets:add(L, Used).
+mark_used({f,L}, Used) -> cerl_sets:add_element(L, Used).
 
 mark_used_list([{f,L}|T], Used) ->
-    mark_used_list(T, gb_sets:add(L, Used));
+    mark_used_list(T, cerl_sets:add_element(L, Used));
 mark_used_list([_|T], Used) ->
     mark_used_list(T, Used);
 mark_used_list([], Used) -> Used.
diff --git a/lib/compiler/src/beam_listing.erl b/lib/compiler/src/beam_listing.erl
index 50d1f3cdb1..726bb7f5eb 100644
--- a/lib/compiler/src/beam_listing.erl
+++ b/lib/compiler/src/beam_listing.erl
@@ -46,8 +46,8 @@ module(Stream, {Mod,Exp,Attr,Code,NumLabels}) ->
       fun ({function,Name,Arity,Entry,Asm}) ->
 	      io:format(Stream, "\n\n{function, ~w, ~w, ~w}.\n",
 			[Name, Arity, Entry]),
-	      foreach(fun(Op) -> print_op(Stream, Op) end, Asm) end,
-      Code);
+	      io:put_chars(Stream, format_asm(Asm))
+      end, Code);
 module(Stream, {Mod,Exp,Inter}) ->
     %% Other kinds of intermediate formats.
     io:fwrite(Stream, "~w.~n~p.~n", [Mod,Exp]),
@@ -56,10 +56,11 @@ module(Stream, [_|_]=Fs) ->
     %% Form-based abstract format.
     foreach(fun (F) -> io:format(Stream, "~p.\n", [F]) end, Fs).
 
-print_op(Stream, Label) when element(1, Label) == label ->
-    io:format(Stream, "  ~p.\n", [Label]);
-print_op(Stream, Op) ->
-    io:format(Stream, "    ~p.\n", [Op]).
+format_asm([{label,L}|Is]) ->
+    ["  {label,",integer_to_list(L),"}.\n"|format_asm(Is)];
+format_asm([I|Is]) ->
+    [io_lib:format("    ~p", [I]),".\n"|format_asm(Is)];
+format_asm([]) -> [].
 
 function(File, {function,Name,Arity,Args,Body,Vdb,_Anno}) ->
     io:nl(File),
diff --git a/lib/compiler/src/beam_peep.erl b/lib/compiler/src/beam_peep.erl
index 97a8c7ba70..5abacc8d5d 100644
--- a/lib/compiler/src/beam_peep.erl
+++ b/lib/compiler/src/beam_peep.erl
@@ -108,14 +108,14 @@ peep([{test,Op,_,Ops}=I|Is], SeenTests0, Acc) ->
 	    %% has succeeded.
 	    peep(Is, gb_sets:empty(), [I|Acc]);
 	true ->
-	    Test = {Op,Ops},
-	    case gb_sets:is_element(Test, SeenTests0) of
+	    case is_test_redundant(Op, Ops, SeenTests0) of
 		true ->
-		    %% This test has already succeeded and
+		    %% This test or a similar test has already succeeded and
 		    %% is therefore redundant.
 		    peep(Is, SeenTests0, Acc);
 		false ->
 		    %% Remember that we have seen this test.
+		    Test = {Op,Ops},
 		    SeenTests = gb_sets:insert(Test, SeenTests0),
 		    peep(Is, SeenTests, [I|Acc])
 	    end
@@ -136,6 +136,15 @@ peep([I|Is], _, Acc) ->
     peep(Is, gb_sets:empty(), [I|Acc]);
 peep([], _, Acc) -> reverse(Acc).
 
+is_test_redundant(Op, Ops, Seen) ->
+    gb_sets:is_element({Op,Ops}, Seen) orelse
+	is_test_redundant_1(Op, Ops, Seen).
+
+is_test_redundant_1(is_boolean, [R], Seen) ->
+    gb_sets:is_element({is_eq_exact,[R,{atom,false}]}, Seen) orelse
+	gb_sets:is_element({is_eq_exact,[R,{atom,true}]}, Seen);
+is_test_redundant_1(_, _, _) -> false.
+
 kill_seen(Dst, Seen0) ->
     gb_sets:from_ordset(kill_seen_1(gb_sets:to_list(Seen0), Dst)).
 
diff --git a/lib/compiler/src/beam_split.erl b/lib/compiler/src/beam_split.erl
index 688bba9a94..0c62b0bf3d 100644
--- a/lib/compiler/src/beam_split.erl
+++ b/lib/compiler/src/beam_split.erl
@@ -53,8 +53,8 @@ split_block([{set,[D],[S|Puts],{alloc,R,{put_map,Op,{f,Lbl}=Fail}}}|Is],
 	    Bl, Acc) when Lbl =/= 0 ->
     split_block(Is, [], [{put_map,Fail,Op,S,D,R,{list,Puts}}|
 			 make_block(Bl, Acc)]);
-split_block([{set,Gets,[S],{get_map_elements,{f,Lbl}=Fail}}|Is], Bl, Acc)
-  when Lbl =/= 0 ->
+split_block([{set,Ds,[S|Ss],{get_map_elements,Fail}}|Is], Bl, Acc) ->
+    Gets = beam_utils:join_even(Ss,Ds),
     split_block(Is, [], [{get_map_elements,Fail,S,{list,Gets}}|make_block(Bl, Acc)]);
 split_block([{set,[R],[],{'catch',L}}|Is], Bl, Acc) ->
     split_block(Is, [], [{'catch',R,L}|make_block(Bl, Acc)]);
diff --git a/lib/compiler/src/beam_trim.erl b/lib/compiler/src/beam_trim.erl
index fad9c42584..8181e555a1 100644
--- a/lib/compiler/src/beam_trim.erl
+++ b/lib/compiler/src/beam_trim.erl
@@ -172,6 +172,10 @@ remap([{bif,Name,Fail,Ss,D}|Is], Map, Acc) ->
 remap([{gc_bif,Name,Fail,Live,Ss,D}|Is], Map, Acc) ->
     I = {gc_bif,Name,Fail,Live,[Map(S) || S <- Ss],Map(D)},
     remap(Is, Map, [I|Acc]);
+remap([{get_map_elements,Fail,M,{list,L0}}|Is], Map, Acc) ->
+    L = [Map(E) || E <- L0],
+    I = {get_map_elements,Fail,Map(M),{list,L}},
+    remap(Is, Map, [I|Acc]);
 remap([{bs_init,Fail,Info,Live,Ss0,Dst0}|Is], Map, Acc) ->
     Ss = [Map(Src) || Src <- Ss0],
     Dst = Map(Dst0),
@@ -275,6 +279,8 @@ frame_size([{kill,_}|Is], Safe) ->
     frame_size(Is, Safe);
 frame_size([{make_fun2,_,_,_,_}|Is], Safe) ->
     frame_size(Is, Safe);
+frame_size([{get_map_elements,{f,L},_,_}|Is], Safe) ->
+    frame_size_branch(L, Is, Safe);
 frame_size([{deallocate,N}|_], _) -> N;
 frame_size([{line,_}|Is], Safe) ->
     frame_size(Is, Safe);
diff --git a/lib/compiler/src/beam_type.erl b/lib/compiler/src/beam_type.erl
index 58c0f765ae..7ab548152e 100644
--- a/lib/compiler/src/beam_type.erl
+++ b/lib/compiler/src/beam_type.erl
@@ -106,6 +106,20 @@ simplify_basic_1([{test,test_arity,_,[R,Arity]}=I|Is], Ts0, Acc) ->
 	    Ts = update(I, Ts0),
 	    simplify_basic_1(Is, Ts, [I|Acc])
     end;
+simplify_basic_1([{test,is_map,_,[R]}=I|Is], Ts0, Acc) ->
+    case tdb_find(R, Ts0) of
+	map -> simplify_basic_1(Is, Ts0, Acc);
+	_Other ->
+	    Ts = update(I, Ts0),
+	    simplify_basic_1(Is, Ts, [I|Acc])
+    end;
+simplify_basic_1([{test,is_nonempty_list,_,[R]}=I|Is], Ts0, Acc) ->
+    case tdb_find(R, Ts0) of
+	nonempty_list -> simplify_basic_1(Is, Ts0, Acc);
+	_Other ->
+	    Ts = update(I, Ts0),
+	    simplify_basic_1(Is, Ts, [I|Acc])
+    end;
 simplify_basic_1([{test,is_eq_exact,Fail,[R,{atom,_}=Atom]}=I|Is0], Ts0, Acc0) ->
     Acc = case tdb_find(R, Ts0) of
 	      {atom,_}=Atom -> Acc0;
@@ -135,9 +149,10 @@ simplify_basic_1([], Ts, Acc) ->
 %%
 simplify_float(Is0, Ts0) ->
     {Is1,Ts} = simplify_float_1(Is0, Ts0, [], []),
-    Is2 = flt_need_heap(Is1),
+    Is2 = opt_fmoves(Is1, []),
+    Is3 = flt_need_heap(Is2),
     try
-	{flt_liveness(Is2),Ts}
+	{flt_liveness(Is3),Ts}
     catch
 	throw:not_possible -> not_possible
     end.
@@ -188,14 +203,15 @@ simplify_float_1([{set,_,_,{'catch',_}}=I|Is]=Is0, _Ts, Rs0, Acc0) ->
     simplify_float_1(Is, tdb_new(), Rs0, [I|Acc]);
 simplify_float_1([{set,_,_,{line,_}}=I|Is], Ts, Rs, Acc) ->
     simplify_float_1(Is, Ts, Rs, [I|Acc]);
+simplify_float_1([I|Is], Ts0, [], Acc) ->
+    Ts = update(I, Ts0),
+    simplify_float_1(Is, Ts, [], [I|Acc]);
 simplify_float_1([I|Is]=Is0, Ts0, Rs0, Acc0) ->
     Ts = update(I, Ts0),
     {Rs,Acc} = flush(Rs0, Is0, Acc0),
     simplify_float_1(Is, Ts, Rs, [I|checkerror(Acc)]);
-simplify_float_1([], Ts, Rs, Acc0) ->
-    Acc = checkerror(Acc0),
-    Is0 = reverse(flush_all(Rs, [], Acc)),
-    Is = opt_fmoves(Is0, []),
+simplify_float_1([], Ts, [], Acc) ->
+    Is = reverse(Acc),
     {Is,Ts}.
 
 coerce_to_float({integer,I}=Int) ->
@@ -230,7 +246,7 @@ clearerror([], OrigIs) -> [{set,[],[],fclearerror}|OrigIs].
 %%  Combine two blocks and eliminate any move instructions that assign
 %%  to registers that are killed later in the block.
 %%
-merge_blocks(B1, [{'%live',_}|B2]) ->
+merge_blocks(B1, [{'%live',_,_}|B2]) ->
     merge_blocks_1(B1++[{set,[],[],stop_here}|B2]).
 
 merge_blocks_1([{set,[],_,stop_here}|Is]) -> Is;
@@ -315,27 +331,27 @@ build_alloc(Words, Floats) -> {alloc,[{words,Words},{floats,Floats}]}.
 
 %% flt_liveness([Instruction]) -> [Instruction]
 %%  (Re)calculate the number of live registers for each heap allocation
-%%  function. We base liveness of the number of live registers at
-%%  entry to the instruction sequence.
+%%  function. We base liveness of the number of register map at the
+%%  beginning of the instruction sequence.
 %%
 %%  A 'not_possible' term will be thrown if the set of live registers
 %%  is not continous at an allocation function (e.g. if {x,0} and {x,2}
 %%  are live, but not {x,1}).
 
-flt_liveness([{'%live',Live}=LiveInstr|Is]) ->
-    flt_liveness_1(Is, init_regs(Live), [LiveInstr]).
+flt_liveness([{'%live',_Live,Regs}=LiveInstr|Is]) ->
+    flt_liveness_1(Is, Regs, [LiveInstr]).
 
-flt_liveness_1([{set,Ds,Ss,{alloc,_,Alloc}}|Is], Regs0, Acc) ->
-    Live = live_regs(Regs0),
+flt_liveness_1([{set,Ds,Ss,{alloc,Live0,Alloc}}|Is], Regs0, Acc) ->
+    Live = min(Live0, live_regs(Regs0)),
     I = {set,Ds,Ss,{alloc,Live,Alloc}},
-    Regs = foldl(fun(R, A) -> set_live(R, A) end, Regs0, Ds),
+    Regs1 = init_regs(Live),
+    Regs = x_live(Ds, Regs1),
     flt_liveness_1(Is, Regs, [I|Acc]);
 flt_liveness_1([{set,Ds,_,_}=I|Is], Regs0, Acc) ->
-    Regs = foldl(fun(R, A) -> set_live(R, A) end, Regs0, Ds),
-    flt_liveness_1(Is, Regs, [I|Acc]);
-flt_liveness_1([{'%live',_}=I|Is], Regs, Acc) ->
+    Regs = x_live(Ds, Regs0),
     flt_liveness_1(Is, Regs, [I|Acc]);
-flt_liveness_1([], _Regs, Acc) -> reverse(Acc).
+flt_liveness_1([{'%live',_,_}], _Regs, Acc) ->
+    reverse(Acc).
 
 init_regs(Live) ->
     (1 bsl Live) - 1.
@@ -350,14 +366,15 @@ live_regs_1(R, N) ->
 	1 -> live_regs_1(R bsr 1, N+1)
     end.
 
-set_live({x,X}, Regs) -> Regs bor (1 bsl X);
-set_live(_, Regs) -> Regs.
+x_live([{x,N}|Rs], Regs) -> x_live(Rs, Regs bor (1 bsl N));
+x_live([_|Rs], Regs) -> x_live(Rs, Regs);
+x_live([], Regs) -> Regs.
 
 %% update(Instruction, TypeDb) -> NewTypeDb
 %%  Update the type database to account for executing an instruction.
 %%
 %%  First the cases for instructions inside basic blocks.
-update({'%live',_}, Ts) -> Ts;
+update({'%live',_,_}, Ts) -> Ts;
 update({set,[D],[S],move}, Ts) ->
     tdb_copy(S, D, Ts);
 update({set,[D],[{integer,I},Reg],{bif,element,_}}, Ts0) ->
@@ -402,6 +419,10 @@ update({test,is_float,_Fail,[Src]}, Ts0) ->
     tdb_update([{Src,float}], Ts0);
 update({test,test_arity,_Fail,[Src,Arity]}, Ts0) ->
     tdb_update([{Src,{tuple,Arity,[]}}], Ts0);
+update({test,is_map,_Fail,[Src]}, Ts0) ->
+    tdb_update([{Src,map}], Ts0);
+update({test,is_nonempty_list,_Fail,[Src]}, Ts0) ->
+    tdb_update([{Src,nonempty_list}], Ts0);
 update({test,is_eq_exact,_,[Reg,{atom,_}=Atom]}, Ts) ->
     case tdb_find(Reg, Ts) of
 	error ->
@@ -451,6 +472,7 @@ is_math_bif(erf, 1) -> true;
 is_math_bif(erfc, 1) -> true;
 is_math_bif(exp, 1) -> true;
 is_math_bif(log, 1) -> true;
+is_math_bif(log2, 1) -> true;
 is_math_bif(log10, 1) -> true;
 is_math_bif(sqrt, 1) -> true;
 is_math_bif(atan2, 2) -> true;
@@ -532,10 +554,10 @@ flush(Rs, [{set,[_],[],{put_tuple,_}}|_]=Is0, Acc0) ->
     Acc = flush_all(Rs, Is0, Acc0),
     {[],Acc};
 flush(Rs0, [{set,Ds,Ss,_Op}|_], Acc0) ->
-    Save = gb_sets:from_list(Ss),
+    Save = cerl_sets:from_list(Ss),
     Acc = save_regs(Rs0, Save, Acc0),
     Rs1 = foldl(fun(S, A) -> mark(S, A, clean) end, Rs0, Ss),
-    Kill = gb_sets:from_list(Ds),
+    Kill = cerl_sets:from_list(Ds),
     Rs = kill_regs(Rs1, Kill),
     {Rs,Acc};
 flush(Rs0, Is, Acc0) ->
@@ -558,7 +580,7 @@ save_regs(Rs, Save, Acc) ->
     foldl(fun(R, A) -> save_reg(R, Save, A) end, Acc, Rs).
 
 save_reg({I,V,dirty}, Save, Acc) ->
-    case gb_sets:is_member(V, Save) of
+    case cerl_sets:is_element(V, Save) of
 	true -> [{set,[V],[{fr,I}],fmove}|checkerror(Acc)];
 	false -> Acc
     end;
@@ -568,7 +590,7 @@ kill_regs(Rs, Kill) ->
     [kill_reg(R, Kill) || R <- Rs].
 
 kill_reg({_,V,_}=R, Kill) ->
-    case gb_sets:is_member(V, Kill) of
+    case cerl_sets:is_element(V, Kill) of
 	true -> free;
 	false -> R
     end;
@@ -710,6 +732,8 @@ merge_type_info(NewType, _) ->
     verify_type(NewType),
     NewType.
 
+verify_type(map) -> ok;
+verify_type(nonempty_list) -> ok;
 verify_type({tuple,Sz,[]}) when is_integer(Sz) -> ok;
 verify_type({tuple,Sz,[_]}) when is_integer(Sz) -> ok;
 verify_type({tuple_element,_,_}) -> ok;
diff --git a/lib/compiler/src/beam_utils.erl b/lib/compiler/src/beam_utils.erl
index 8ca368c167..b82bcd0e95 100644
--- a/lib/compiler/src/beam_utils.erl
+++ b/lib/compiler/src/beam_utils.erl
@@ -26,6 +26,8 @@
 	 code_at/2,bif_to_test/3,is_pure_test/1,
 	 live_opt/1,delete_live_annos/1,combine_heap_needs/2]).
 
+-export([join_even/2,split_even/1]).
+
 -import(lists, [member/2,sort/1,reverse/1,splitwith/2]).
 
 -record(live,
@@ -126,8 +128,7 @@ empty_label_index() ->
 %%  Add an index for a label.
 
 index_label(Lbl, Is0, Acc) ->
-    Is = lists:dropwhile(fun({label,_}) -> true;
-			    (_) -> false end, Is0),
+    Is = drop_labels(Is0),
     gb_trees:enter(Lbl, Is, Acc).
 
 
@@ -185,7 +186,7 @@ is_pure_test({test,is_lt,_,[_,_]}) -> true;
 is_pure_test({test,is_nil,_,[_]}) -> true;
 is_pure_test({test,is_nonempty_list,_,[_]}) -> true;
 is_pure_test({test,test_arity,_,[_,_]}) -> true;
-is_pure_test({test,has_map_fields,_,[_,{list,_}]}) -> true;
+is_pure_test({test,has_map_fields,_,[_|_]}) -> true;
 is_pure_test({test,Op,_,Ops}) -> 
     erl_internal:new_type_test(Op, length(Ops)).
 
@@ -194,7 +195,7 @@ is_pure_test({test,Op,_,Ops}) ->
 %%  Go through the instruction sequence in reverse execution
 %%  order, keep track of liveness and remove 'move' instructions
 %%  whose destination is a register that will not be used.
-%%  Also insert {'%live',Live} annotations at the beginning
+%%  Also insert {'%live',Live,Regs} annotations at the beginning
 %%  and end of each block.
 %%
 live_opt(Is0) ->
@@ -215,7 +216,7 @@ delete_live_annos([{block,Bl0}|Is]) ->
 	[] -> delete_live_annos(Is);
 	[_|_]=Bl -> [{block,Bl}|delete_live_annos(Is)]
     end;
-delete_live_annos([{'%live',_}|Is]) ->
+delete_live_annos([{'%live',_,_}|Is]) ->
     delete_live_annos(Is);
 delete_live_annos([I|Is]) ->
     [I|delete_live_annos(Is)];
@@ -342,14 +343,10 @@ check_liveness(R, [{call_ext,Live,_}=I|Is], St) ->
 		false ->
 		    check_liveness(R, Is, St);
 		true ->
-		    %% We must make sure we don't check beyond this instruction
-		    %% or we will fall through into random unrelated code and
-		    %% get stuck in a loop.
-		    %%
-		    %% We don't want to overwrite a 'catch', so consider this
-		    %% register in use.
-		    %% 
-		    {used,St}
+		    %% We must make sure we don't check beyond this
+		    %% instruction or we will fall through into random
+		    %% unrelated code and get stuck in a loop.
+		    {killed,St}
 	    end
     end;
 check_liveness(R, [{call_fun,Live}|Is], St) ->
@@ -364,11 +361,6 @@ check_liveness(R, [{apply,Args}|Is], St) ->
 	{x,_} -> {killed,St};
 	{y,_} -> check_liveness(R, Is, St)
     end;
-check_liveness({x,R}, [{'%live',Live}|Is], St) ->
-    if
-	R < Live -> check_liveness(R, Is, St);
-	true -> {killed,St}
-    end;
 check_liveness(R, [{bif,Op,{f,Fail},Ss,D}|Is], St0) ->
     case check_liveness_fail(R, Op, Ss, Fail, St0) of
 	{killed,St} = Killed ->
@@ -475,6 +467,22 @@ check_liveness(R, [{loop_rec_end,{f,Fail}}|_], St) ->
     check_liveness_at(R, Fail, St);
 check_liveness(R, [{line,_}|Is], St) ->
     check_liveness(R, Is, St);
+check_liveness(R, [{get_map_elements,{f,Fail},S,{list,L}}|Is], St0) ->
+    {Ss,Ds} = split_even(L),
+    case member(R, [S|Ss]) of
+	true ->
+	    {used,St0};
+	false ->
+	    case check_liveness_at(R, Fail, St0) of
+		{killed,St}=Killed ->
+		    case member(R, Ds) of
+			true -> Killed;
+			false -> check_liveness(R, Is, St)
+		    end;
+		Other ->
+		    Other
+	    end
+    end;
 check_liveness(_R, Is, St) when is_list(Is) ->
 %%     case Is of
 %% 	[I|_] ->
@@ -552,7 +560,7 @@ check_killed_block(R, [{set,Ds,Ss,_Op}|Is]) ->
 		false -> check_killed_block(R, Is)
 	    end
     end;
-check_killed_block(R, [{'%live',Live}|Is]) ->
+check_killed_block(R, [{'%live',Live,_}|Is]) ->
     case R of
 	{x,X} when X >= Live -> killed;
 	_ -> check_killed_block(R, Is)
@@ -575,7 +583,7 @@ check_used_block({x,X}=R, [{set,Ds,Ss,{alloc,Live,Op}}|Is], St) ->
     end;
 check_used_block(R, [{set,Ds,Ss,Op}|Is], St) ->
     check_used_block_1(R, Ss, Ds, Op, Is, St);
-check_used_block(R, [{'%live',Live}|Is], St) ->
+check_used_block(R, [{'%live',Live,_}|Is], St) ->
     case R of
 	{x,X} when X >= Live -> {killed,St};
 	_ -> check_used_block(R, Is, St)
@@ -615,13 +623,15 @@ is_reg_used_at_1(R, Lbl, St0) ->
     end.
 
 index_labels_1([{label,Lbl}|Is0], Acc) ->
-    Is = lists:dropwhile(fun({label,_}) -> true;
-			    (_) -> false end, Is0),
+    Is = drop_labels(Is0),
     index_labels_1(Is0, [{Lbl,Is}|Acc]);
 index_labels_1([_|Is], Acc) ->
     index_labels_1(Is, Acc);
 index_labels_1([], Acc) -> gb_trees:from_orddict(sort(Acc)).
 
+drop_labels([{label,_}|Is]) -> drop_labels(Is);
+drop_labels(Is) -> Is.
+
 %% Help functions for combine_heap_needs.
 
 combine_alloc_lists(Al1, Al2) ->
@@ -676,9 +686,9 @@ live_opt([{test,bs_start_match2,Fail,Live,[Src,_],_}=I|Is], _, D, Acc) ->
 
 %% Other instructions.
 live_opt([{block,Bl0}|Is], Regs0, D, Acc) ->
-    Live0 = {'%live',live_regs(Regs0)},
+    Live0 = {'%live',live_regs(Regs0),Regs0},
     {Bl,Regs} = live_opt_block(reverse(Bl0), Regs0, D, [Live0]),
-    Live = {'%live',live_regs(Regs)},
+    Live = {'%live',live_regs(Regs),Regs},
     live_opt(Is, Regs, D, [{block,[Live|Bl]}|Acc]);
 live_opt([{label,L}=I|Is], Regs, D0, Acc) ->
     D = gb_trees:insert(L, Regs, D0),
@@ -756,13 +766,9 @@ live_opt([{line,_}=I|Is], Regs, D, Acc) ->
     live_opt(Is, Regs, D, [I|Acc]);
 
 %% The following instructions can occur if the "compilation" has been
-%% started from a .S file using the 'asm' option.
+%% started from a .S file using the 'from_asm' option.
 live_opt([{trim,_,_}=I|Is], Regs, D, Acc) ->
     live_opt(Is, Regs, D, [I|Acc]);
-live_opt([{allocate,_,Live}=I|Is], _, D, Acc) ->
-    live_opt(Is, live_call(Live), D, [I|Acc]);
-live_opt([{allocate_heap,_,_,Live}=I|Is], _, D, Acc) ->
-    live_opt(Is, live_call(Live), D, [I|Acc]);
 live_opt([{'%',_}=I|Is], Regs, D, Acc) ->
     live_opt(Is, Regs, D, [I|Acc]);
 live_opt([{recv_set,_}=I|Is], Regs, D, Acc) ->
@@ -832,3 +838,15 @@ x_live([_|Rs], Regs) -> x_live(Rs, Regs);
 x_live([], Regs) -> Regs.
 
 is_live(X, Regs) -> ((Regs bsr X) band 1) =:= 1.
+
+%% split_even/1
+%% [1,2,3,4,5,6] -> {[1,3,5],[2,4,6]}
+split_even(Rs) -> split_even(Rs,[],[]).
+split_even([],Ss,Ds) -> {reverse(Ss),reverse(Ds)};
+split_even([S,D|Rs],Ss,Ds) ->
+    split_even(Rs,[S|Ss],[D|Ds]).
+
+%% join_even/1
+%% {[1,3,5],[2,4,6]} -> [1,2,3,4,5,6]
+join_even([],[]) -> [];
+join_even([S|Ss],[D|Ds]) -> [S,D|join_even(Ss,Ds)].
diff --git a/lib/compiler/src/beam_validator.erl b/lib/compiler/src/beam_validator.erl
index 9d5563d13b..780826b126 100644
--- a/lib/compiler/src/beam_validator.erl
+++ b/lib/compiler/src/beam_validator.erl
@@ -22,14 +22,13 @@
 
 %% Avoid warning for local function error/1 clashing with autoimported BIF.
 -compile({no_auto_import,[error/1]}).
--export([file/1, files/1]).
 
 %% Interface for compiler.
 -export([module/2, format_error/1]).
 
 -include("beam_disasm.hrl").
 
--import(lists, [reverse/1,foldl/3,foreach/2,member/2,dropwhile/2]).
+-import(lists, [reverse/1,foldl/3,foreach/2,dropwhile/2]).
 
 -define(MAXREG, 1024).
 
@@ -40,38 +39,12 @@
 -define(DBG_FORMAT(F, D), ok).
 -endif.
 
-%%%
-%%% API functions.
-%%%
-
--spec file(file:filename()) -> 'ok' | {'error', term()}.
-
-file(Name) when is_list(Name) ->
-    case case filename:extension(Name) of
-	     ".S" -> s_file(Name);
-	     ".beam" -> beam_file(Name)
-	 end of
-	[] -> ok;
-	Es -> {error,Es}
-    end.
-
--spec files([file:filename()]) -> 'ok'.
-
-files([F|Fs]) ->
-    ?DBG_FORMAT("# Verifying: ~p~n", [F]),
-    case file(F) of
-	ok -> ok;
-	{error,Es} -> 
-	    io:format("~tp:~n~ts~n", [F,format_error(Es)])
-    end,
-    files(Fs);
-files([]) -> ok.
-
 %% To be called by the compiler.
 module({Mod,Exp,Attr,Fs,Lc}=Code, _Opts)
   when is_atom(Mod), is_list(Exp), is_list(Attr), is_integer(Lc) ->
     case validate(Mod, Fs) of
-	[] -> {ok,Code};
+	[] ->
+	    {ok,Code};
 	Es0 ->
 	    Es = [{?MODULE,E} || E <- Es0],
 	    {error,[{atom_to_list(Mod),Es}]}
@@ -79,12 +52,6 @@ module({Mod,Exp,Attr,Fs,Lc}=Code, _Opts)
 
 -spec format_error(term()) -> iolist().
 
-format_error([]) -> [];
-format_error([{{M,F,A},{I,Off,Desc}}|Es]) ->
-    [io_lib:format("  ~p:~p/~p+~p:~n    ~p - ~p~n", 
-		   [M,F,A,Off,I,Desc])|format_error(Es)];
-format_error([Error|Es]) ->
-    [format_error(Error)|format_error(Es)];
 format_error({{_M,F,A},{I,Off,limit}}) ->
     io_lib:format(
       "function ~p/~p+~p:~n"
@@ -103,8 +70,6 @@ format_error({{_M,F,A},{I,Off,Desc}}) ->
       "  Internal consistency check failed - please report this bug.~n"
       "  Instruction: ~p~n"
       "  Error:       ~p:~n", [F,A,Off,I,Desc]);
-format_error({Module,Error}) ->
-    [Module:format_error(Error)];
 format_error(Error) ->
     io_lib:format("~p~n", [Error]).
 
@@ -112,36 +77,6 @@ format_error(Error) ->
 %%% Local functions follow.
 %%% 
 
-s_file(Name) ->
-    {ok,Is} = file:consult(Name),
-    {module,Module} = lists:keyfind(module, 1, Is),
-    Fs = find_functions(Is),
-    validate(Module, Fs).
-
-find_functions(Fs) ->
-    find_functions_1(Fs, none, [], []).
-
-find_functions_1([{function,Name,Arity,Entry}|Is], Func, FuncAcc, Acc0) ->
-    Acc = add_func(Func, FuncAcc, Acc0),
-    find_functions_1(Is, {Name,Arity,Entry}, [], Acc);
-find_functions_1([I|Is], Func, FuncAcc, Acc) ->
-    find_functions_1(Is, Func, [I|FuncAcc], Acc);
-find_functions_1([], Func, FuncAcc, Acc) ->
-    reverse(add_func(Func, FuncAcc, Acc)).
-
-add_func(none, _, Acc) -> Acc;
-add_func({Name,Arity,Entry}, Is, Acc) ->
-    [{function,Name,Arity,Entry,reverse(Is)}|Acc].
-
-beam_file(Name) ->
-    try beam_disasm:file(Name) of
-	{error,beam_lib,Reason} -> [{beam_lib,Reason}];
-	#beam_file{module=Module, code=Code0} ->
-	    Code = normalize_disassembled_code(Code0),
-	    validate(Module, Code)
-    catch _:_ -> [disassembly_failed]
-    end.
-
 %%%
 %%% The validator follows.
 %%%
@@ -196,23 +131,16 @@ validate_0(Module, [{function,Name,Ar,Entry,Code}|Fs], Ft) ->
     try validate_1(Code, Name, Ar, Entry, Ft) of
 	_ -> validate_0(Module, Fs, Ft)
     catch
-	Error ->
+	throw:Error ->
+	    %% Controlled error.
 	    [Error|validate_0(Module, Fs, Ft)];
-	  error:Error ->
-	    [validate_error(Error, Module, Name, Ar)|validate_0(Module, Fs, Ft)]
+	Class:Error ->
+	    %% Crash.
+	    Stack = erlang:get_stacktrace(),
+	    io:fwrite("Function: ~w/~w\n", [Name,Ar]),
+	    erlang:raise(Class, Error, Stack)
     end.
 
--ifdef(DEBUG).
-validate_error(Error, Module, Name, Ar) ->
-    exit(validate_error_1(Error, Module, Name, Ar)).
--else.
-validate_error(Error, Module, Name, Ar) ->
-    validate_error_1(Error, Module, Name, Ar).
--endif.
-validate_error_1(Error, Module, Name, Ar) ->
-    {{Module,Name,Ar},
-     {internal_error,'_',{Error,erlang:get_stacktrace()}}}.
-
 -type index() :: non_neg_integer().
 -type reg_tab() :: gb_trees:tree(index(), 'none' | {'value', _}).
 
@@ -225,8 +153,6 @@ validate_error_1(Error, Module, Name, Ar) ->
 	 hf=0,				%Available heap size for floats.
 	 fls=undefined,			%Floating point state.
 	 ct=[],				%List of hot catch/try labels
-	 bsm=undefined,			%Bit syntax matching state.
-	 bits=undefined,	        %Number of bits in bit syntax binary.
 	 setelem=false			%Previous instruction was setelement/3.
 	}).
 
@@ -308,7 +234,7 @@ labels_1([{label,L}|Is], R) ->
 labels_1([{line,_}|Is], R) ->
     labels_1(Is, R);
 labels_1(Is, R) ->
-    {lists:reverse(R),Is}.
+    {reverse(R),Is}.
 
 init_state(Arity) ->
     Xs = init_regs(Arity, term),
@@ -403,10 +329,6 @@ valfun_1({init,{y,_}=Reg}, Vst) ->
     set_type_y(initialized, Reg, Vst);
 valfun_1({test_heap,Heap,Live}, Vst) ->
     test_heap(Heap, Live, Vst);
-valfun_1({bif,_Op,nofail,Src,Dst}, Vst) ->
-    %% The 'nofail' atom only occurs in disassembled code.
-    validate_src(Src, Vst),
-    set_type_reg(term, Dst, Vst);
 valfun_1({bif,Op,{f,_},Src,Dst}=I, Vst) ->
     case is_bif_safe(Op, length(Src)) of
 	false ->
@@ -432,18 +354,12 @@ valfun_1({put_tuple,Sz,Dst}, Vst0) when is_integer(Sz) ->
 valfun_1({put,Src}, Vst) ->
     assert_term(Src, Vst),
     eat_heap(1, Vst);
-valfun_1({put_string,Sz,_,Dst}, Vst0) when is_integer(Sz) ->
-    Vst = eat_heap(2*Sz, Vst0),
-    set_type_reg(cons, Dst, Vst);
 %% Instructions for optimization of selective receives.
 valfun_1({recv_mark,{f,Fail}}, Vst) when is_integer(Fail) ->
     Vst;
 valfun_1({recv_set,{f,Fail}}, Vst) when is_integer(Fail) ->
     Vst;
 %% Misc.
-valfun_1({'%live',Live}, Vst) ->
-    verify_live(Live, Vst),
-    Vst;
 valfun_1(remove_message, Vst) ->
     Vst;
 valfun_1({'%',_}, Vst) ->
@@ -494,37 +410,33 @@ valfun_1({'try',Dst,{f,Fail}}, Vst0) ->
     Vst = #vst{current=#st{ct=Fails}=St} = 
 	set_type_y({trytag,[Fail]}, Dst, Vst0),
     Vst#vst{current=St#st{ct=[[Fail]|Fails]}};
-valfun_1({catch_end,Reg}, #vst{current=#st{ct=[Fail|Fails]}=St0}=Vst0) ->
+valfun_1({catch_end,Reg}, #vst{current=#st{ct=[Fail|Fails]}}=Vst0) ->
     case get_special_y_type(Reg, Vst0) of
 	{catchtag,Fail} ->
-	    Vst = #vst{current=St} = 
-		set_type_y(initialized_ct, Reg, 
-			   Vst0#vst{current=St0#st{ct=Fails}}),
+	    Vst = #vst{current=St} = set_catch_end(Reg, Vst0),
 	    Xs = gb_trees_from_list([{0,term}]),
-	    Vst#vst{current=St#st{x=Xs,fls=undefined}};
+	    Vst#vst{current=St#st{x=Xs,ct=Fails,fls=undefined}};
 	Type ->
 	    error({bad_type,Type})
     end;
-valfun_1({try_end,Reg}, #vst{current=#st{ct=[Fail|Fails]}=St}=Vst0) ->
+valfun_1({try_end,Reg}, #vst{current=#st{ct=[Fail|Fails]}=St0}=Vst0) ->
     case get_special_y_type(Reg, Vst0) of
 	{trytag,Fail} ->
 	    Vst = case Fail of
 		      [FailLabel] -> branch_state(FailLabel, Vst0);
 		      _ -> Vst0
 		  end,
-	    set_type_reg(initialized_ct, Reg, 
-			 Vst#vst{current=St#st{ct=Fails,fls=undefined}});
+	    St = St0#st{ct=Fails,fls=undefined},
+	    set_catch_end(Reg, Vst#vst{current=St});
 	Type ->
 	    error({bad_type,Type})
     end;
-valfun_1({try_case,Reg}, #vst{current=#st{ct=[Fail|Fails]}=St0}=Vst0) ->
+valfun_1({try_case,Reg}, #vst{current=#st{ct=[Fail|Fails]}}=Vst0) ->
     case get_special_y_type(Reg, Vst0) of
 	{trytag,Fail} ->
-	    Vst = #vst{current=St} = 
-		set_type_y(initialized_ct, Reg, 
-			   Vst0#vst{current=St0#st{ct=Fails}}),
-	    Xs = gb_trees_from_list([{0,{atom,[]}},{1,term},{2,term}]), %XXX
-	    Vst#vst{current=St#st{x=Xs,fls=undefined}};
+	    Vst = #vst{current=St} = set_catch_end(Reg, Vst0),
+	    Xs = gb_trees_from_list([{0,{atom,[]}},{1,term},{2,term}]),
+	    Vst#vst{current=St#st{x=Xs,ct=Fails,fls=undefined}};
 	Type ->
 	    error({bad_type,Type})
     end;
@@ -602,8 +514,6 @@ valfun_4({call_ext_last,Live,Func,StkSize},
     tail_call(Func, Live, Vst);
 valfun_4({call_ext_last,_,_,_}, #vst{current=#st{numy=NumY}}) ->
     error({allocated,NumY});
-valfun_4({make_fun,_,_,Live}, Vst) ->
-    call('fun', Live, Vst);
 valfun_4({make_fun2,_,_,_,Live}, Vst) ->
     call(make_fun, Live, Vst);
 %% Other BIFs
@@ -620,8 +530,6 @@ valfun_4({bif,element,{f,Fail},[Pos,Tuple],Dst}, Vst0) ->
     TupleType = upgrade_tuple_type({tuple,[get_tuple_size(PosType)]}, TupleType0),
     Vst = set_type(TupleType, Tuple, Vst1),
     set_type_reg(term, Dst, Vst);
-valfun_4({raise,{f,_}=Fail,Src,Dst}, Vst) ->
-    valfun_4({bif,raise,Fail,Src,Dst}, Vst);
 valfun_4({bif,Op,{f,Fail},Src,Dst}, Vst0) ->
     validate_src(Src, Vst0),
     Vst = branch_state(Fail, Vst0),
@@ -738,32 +646,6 @@ valfun_4({bs_save2,Ctx,SavePoint}, Vst) ->
 valfun_4({bs_restore2,Ctx,SavePoint}, Vst) ->
     bsm_restore(Ctx, SavePoint, Vst);
 
-%% Bit syntax instructions.
-valfun_4({bs_start_match,{f,_Fail}=F,Src}, Vst) ->
-    valfun_4({test,bs_start_match,F,[Src]}, Vst);
-valfun_4({test,bs_start_match,{f,Fail},[Src]}, Vst) ->
-    assert_term(Src, Vst),
-    bs_start_match(branch_state(Fail, Vst));
-
-valfun_4({bs_save,SavePoint}, Vst) ->
-    bs_assert_state(Vst),
-    bs_save(SavePoint, Vst);
-valfun_4({bs_restore,SavePoint}, Vst) ->
-    bs_assert_state(Vst),
-    bs_assert_savepoint(SavePoint, Vst),
-    Vst;
-valfun_4({test,bs_skip_bits,{f,Fail},[Src,_,_]}, Vst) ->
-    bs_assert_state(Vst),
-    assert_term(Src, Vst),
-    branch_state(Fail, Vst);
-valfun_4({test,bs_test_tail,{f,Fail},_}, Vst) ->
-    bs_assert_state(Vst),
-    branch_state(Fail, Vst);
-valfun_4({test,_,{f,Fail},[_,_,_,Dst]}, Vst0) ->
-    bs_assert_state(Vst0),
-    Vst = branch_state(Fail, Vst0),
-    set_type_reg({integer,[]}, Dst, Vst);
-
 %% Other test instructions.
 valfun_4({test,is_float,{f,Lbl},[Float]}, Vst) ->
     assert_term(Float, Vst),
@@ -779,9 +661,17 @@ valfun_4({test,test_arity,{f,Lbl},[Tuple,Sz]}, Vst) when is_integer(Sz) ->
     assert_type(tuple, Tuple, Vst),
     set_type_reg({tuple,Sz}, Tuple, branch_state(Lbl, Vst));
 valfun_4({test,has_map_fields,{f,Lbl},Src,{list,List}}, Vst) ->
-    validate_src([Src], Vst),
-    assert_strict_literal_termorder(List),
+    assert_type(map, Src, Vst),
+    assert_unique_map_keys(List),
     branch_state(Lbl, Vst);
+valfun_4({test,is_map,{f,Lbl},[Src]}, Vst0) ->
+    Vst = branch_state(Lbl, Vst0),
+    case Src of
+	{Tag,_} when Tag =:= x; Tag =:= y ->
+	    set_type_reg(map, Src, Vst);
+	_ ->
+	    Vst
+    end;
 valfun_4({test,_Op,{f,Lbl},Src}, Vst) ->
     validate_src(Src, Vst),
     branch_state(Lbl, Vst);
@@ -795,9 +685,6 @@ valfun_4({bs_utf8_size,{f,Fail},A,Dst}, Vst) ->
 valfun_4({bs_utf16_size,{f,Fail},A,Dst}, Vst) ->
     assert_term(A, Vst),
     set_type_reg({integer,[]}, Dst, branch_state(Fail, Vst));
-valfun_4({bs_bits_to_bytes,{f,Fail},Src,Dst}, Vst) ->
-    assert_term(Src, Vst),
-    set_type_reg({integer,[]}, Dst, branch_state(Fail, Vst));
 valfun_4({bs_init2,{f,Fail},Sz,Heap,Live,_,Dst}, Vst0) ->
     verify_live(Live, Vst0),
     if
@@ -808,8 +695,7 @@ valfun_4({bs_init2,{f,Fail},Sz,Heap,Live,_,Dst}, Vst0) ->
     end,
     Vst1 = heap_alloc(Heap, Vst0),
     Vst2 = branch_state(Fail, Vst1),
-    Vst3 = prune_x_regs(Live, Vst2),
-    Vst = bs_zero_bits(Vst3),
+    Vst = prune_x_regs(Live, Vst2),
     set_type_reg(binary, Dst, Vst);
 valfun_4({bs_init_bits,{f,Fail},Sz,Heap,Live,_,Dst}, Vst0) ->
     verify_live(Live, Vst0),
@@ -821,8 +707,7 @@ valfun_4({bs_init_bits,{f,Fail},Sz,Heap,Live,_,Dst}, Vst0) ->
     end,
     Vst1 = heap_alloc(Heap, Vst0),
     Vst2 = branch_state(Fail, Vst1),
-    Vst3 = prune_x_regs(Live, Vst2),
-    Vst = bs_zero_bits(Vst3),
+    Vst = prune_x_regs(Live, Vst2),
     set_type_reg(binary, Dst, Vst);
 valfun_4({bs_append,{f,Fail},Bits,Heap,Live,_Unit,Bin,_Flags,Dst}, Vst0) ->
     verify_live(Live, Vst0),
@@ -830,54 +715,36 @@ valfun_4({bs_append,{f,Fail},Bits,Heap,Live,_Unit,Bin,_Flags,Dst}, Vst0) ->
     assert_term(Bin, Vst0),
     Vst1 = heap_alloc(Heap, Vst0),
     Vst2 = branch_state(Fail, Vst1),
-    Vst3 = prune_x_regs(Live, Vst2),
-    Vst = bs_zero_bits(Vst3),
+    Vst = prune_x_regs(Live, Vst2),
     set_type_reg(binary, Dst, Vst);
 valfun_4({bs_private_append,{f,Fail},Bits,_Unit,Bin,_Flags,Dst}, Vst0) ->
     assert_term(Bits, Vst0),
     assert_term(Bin, Vst0),
-    Vst1 = branch_state(Fail, Vst0),
-    Vst = bs_zero_bits(Vst1),
+    Vst = branch_state(Fail, Vst0),
     set_type_reg(binary, Dst, Vst);
 valfun_4({bs_put_string,Sz,_}, Vst) when is_integer(Sz) ->
     Vst;
-valfun_4({bs_put_binary,{f,Fail},Sz,_,_,Src}=I, Vst0) ->
-    assert_term(Sz, Vst0),
-    assert_term(Src, Vst0),
-    Vst = bs_align_check(I, Vst0),
+valfun_4({bs_put_binary,{f,Fail},Sz,_,_,Src}, Vst) ->
+    assert_term(Sz, Vst),
+    assert_term(Src, Vst),
     branch_state(Fail, Vst);
-valfun_4({bs_put_float,{f,Fail},Sz,_,_,Src}=I, Vst0) ->
-    assert_term(Sz, Vst0),
-    assert_term(Src, Vst0),
-    Vst = bs_align_check(I, Vst0),
+valfun_4({bs_put_float,{f,Fail},Sz,_,_,Src}, Vst) ->
+    assert_term(Sz, Vst),
+    assert_term(Src, Vst),
     branch_state(Fail, Vst);
-valfun_4({bs_put_integer,{f,Fail},Sz,_,_,Src}=I, Vst0) ->
-    assert_term(Sz, Vst0),
-    assert_term(Src, Vst0),
-    Vst = bs_align_check(I, Vst0),
+valfun_4({bs_put_integer,{f,Fail},Sz,_,_,Src}, Vst) ->
+    assert_term(Sz, Vst),
+    assert_term(Src, Vst),
     branch_state(Fail, Vst);
-valfun_4({bs_put_utf8,{f,Fail},_,Src}=I, Vst0) ->
-    assert_term(Src, Vst0),
-    Vst = bs_align_check(I, Vst0),
+valfun_4({bs_put_utf8,{f,Fail},_,Src}, Vst) ->
+    assert_term(Src, Vst),
     branch_state(Fail, Vst);
-valfun_4({bs_put_utf16,{f,Fail},_,Src}=I, Vst0) ->
-    assert_term(Src, Vst0),
-    Vst = bs_align_check(I, Vst0),
+valfun_4({bs_put_utf16,{f,Fail},_,Src}, Vst) ->
+    assert_term(Src, Vst),
     branch_state(Fail, Vst);
-valfun_4({bs_put_utf32,{f,Fail},_,Src}=I, Vst0) ->
-    assert_term(Src, Vst0),
-    Vst = bs_align_check(I, Vst0),
+valfun_4({bs_put_utf32,{f,Fail},_,Src}, Vst) ->
+    assert_term(Src, Vst),
     branch_state(Fail, Vst);
-%% Old bit syntax construction (before R10B).
-valfun_4({bs_init,_,_}, Vst) ->
-    bs_zero_bits(Vst);
-valfun_4({bs_need_buf,_}, Vst) -> Vst;
-valfun_4({bs_final,{f,Fail},Dst}, Vst0) ->
-    Vst = branch_state(Fail, Vst0),
-    set_type_reg(binary, Dst, Vst);
-valfun_4({bs_final2,Src,Dst}, Vst0) ->
-    assert_term(Src, Vst0),
-    set_type_reg(binary, Dst, Vst0);
 %% Map instructions.
 valfun_4({put_map_assoc,{f,Fail},Src,Dst,Live,{list,List}}, Vst) ->
     verify_put_map(Fail, Src, Dst, Live, List, Vst);
@@ -889,26 +756,32 @@ valfun_4(_, _) ->
     error(unknown_instruction).
 
 verify_get_map(Fail, Src, List, Vst0) ->
-    assert_term(Src, Vst0),
+    assert_type(map, Src, Vst0),
     Vst1 = branch_state(Fail, Vst0),
-    Lits = mmap(fun(L,_R) -> [L] end, List),
-    assert_strict_literal_termorder(Lits),
+    Keys = extract_map_keys(List),
+    assert_unique_map_keys(Keys),
     verify_get_map_pair(List,Vst0,Vst1).
 
+extract_map_keys([Key,_Val|T]) ->
+    [Key|extract_map_keys(T)];
+extract_map_keys([]) -> [].
+
 verify_get_map_pair([],_,Vst) -> Vst;
 verify_get_map_pair([Src,Dst|Vs],Vst0,Vsti) ->
     assert_term(Src, Vst0),
     verify_get_map_pair(Vs,Vst0,set_type_reg(term,Dst,Vsti)).
 
 verify_put_map(Fail, Src, Dst, Live, List, Vst0) ->
+    assert_type(map, Src, Vst0),
     verify_live(Live, Vst0),
     verify_y_init(Vst0),
     foreach(fun (Term) -> assert_term(Term, Vst0) end, List),
-    assert_term(Src, Vst0),
     Vst1 = heap_alloc(0, Vst0),
     Vst2 = branch_state(Fail, Vst1),
     Vst = prune_x_regs(Live, Vst2),
-    set_type_reg(term, Dst, Vst).
+    Keys = extract_map_keys(List),
+    assert_unique_map_keys(Keys),
+    set_type_reg(map, Dst, Vst).
 
 %%
 %% Common code for validating bs_get* instructions.
@@ -936,9 +809,6 @@ validate_bs_skip_utf(Fail, Ctx, Live, Vst0) ->
 %%
 val_dsetel({move,_,_}, Vst) ->
     Vst;
-val_dsetel({put_string,0,{string,""},_}, Vst) ->
-    %% An empty string is OK since it doesn't build anything.
-    Vst;
 val_dsetel({call_ext,3,{extfunc,erlang,setelement,3}}, #vst{current=St}=Vst) ->
     Vst#vst{current=St#st{setelem=true}};
 val_dsetel({set_tuple_element,_,_,_}, #vst{current=#st{setelem=false}}) ->
@@ -972,7 +842,7 @@ call(Name, Live, #vst{current=St}=Vst) ->
 	Type when Type =/= exception ->
 	    %% Type is never 'exception' because it has been handled earlier.
 	    Xs = gb_trees_from_list([{0,Type}]),
-	    Vst#vst{current=St#st{x=Xs,f=init_fregs(),bsm=undefined}}
+	    Vst#vst{current=St#st{x=Xs,f=init_fregs()}}
     end.
 
 %% Tail call.
@@ -1030,7 +900,7 @@ allocate(_, _, _, _, #vst{current=#st{numy=Numy}}) ->
     error({existing_stack_frame,{size,Numy}}).
 
 deallocate(#vst{current=St}=Vst) ->
-    Vst#vst{current=St#st{y=init_regs(0, initialized),numy=none,bsm=undefined}}.
+    Vst#vst{current=St#st{y=init_regs(0, initialized),numy=none}}.
 
 test_heap(Heap, Live, Vst0) ->
     verify_live(Live, Vst0),
@@ -1038,7 +908,7 @@ test_heap(Heap, Live, Vst0) ->
     heap_alloc(Heap, Vst).
 
 heap_alloc(Heap, #vst{current=St0}=Vst) ->
-    St1 = kill_heap_allocation(St0#st{bsm=undefined}),
+    St1 = kill_heap_allocation(St0),
     St = heap_alloc_1(Heap, St1),
     Vst#vst{current=St}.
 
@@ -1122,73 +992,25 @@ assert_freg_set(Fr, _) -> error({bad_source,Fr}).
 
 %%% Maps
 
-%% ensure that a list of literals has a strict
-%% ascending term order (also meaning unique literals)
-assert_strict_literal_termorder(Ls) ->
-    Vs = lists:map(fun (L) -> get_literal(L) end, Ls),
-    case check_strict_value_termorder(Vs) of
-	true ->  ok;
-	false -> error({not_strict_order, Ls})
-    end.
-
-%% usage:
-%% mmap(fun(A,B) -> [{A,B}] end, [1,2,3,4]),
-%% [{1,2},{3,4}]
-
-mmap(F,List) ->
-    {arity,Ar} = erlang:fun_info(F,arity),
-    mmap(F,Ar,List).
-mmap(_F,_,[]) -> [];
-mmap(F,Ar,List) ->
-    {Hd,Tl} = lists:split(Ar,List),
-    apply(F,Hd) ++ mmap(F,Ar,Tl).
-
-check_strict_value_termorder([]) -> true;
-check_strict_value_termorder([_]) -> true;
-check_strict_value_termorder([V1,V2]) ->
-    erts_internal:cmp_term(V1,V2) < 0;
-check_strict_value_termorder([V1,V2|Vs]) ->
-    case erts_internal:cmp_term(V1,V2) < 0 of
-	true -> check_strict_value_termorder([V2|Vs]);
-	false -> false
-    end.
+%% A single item list may be either a list or a register.
+%%
+%% A list with more than item must contain unique literals.
+%%
+%% An empty list is not allowed.
 
-%%%
-%%% Binary matching.
-%%%
-%%% Possible values for the bsm field (=bit syntax matching state).
-%%%
-%%% undefined 	- Undefined (initial state). No matching instructions allowed.
-%%%		 
-%%% (gb set)	- The gb set contains the defined save points.
-%%%
-%%% The bsm field is reset to 'undefined' by instructions that may cause a
-%%% a garbage collection (might move the binary) and/or context switch
-%%% (may invalidate the save points).
-
-bs_start_match(#vst{current=#st{bsm=undefined}=St}=Vst) ->
-    Vst#vst{current=St#st{bsm=gb_sets:empty()}};
-bs_start_match(Vst) ->
-    %% Must retain save points here - it is possible to restore back
-    %% to a previous binary.
-    Vst.
-
-bs_save(Reg, #vst{current=#st{bsm=Saved}=St}=Vst)
-  when is_integer(Reg), Reg < ?MAXREG  ->
-    Vst#vst{current=St#st{bsm=gb_sets:add(Reg, Saved)}};
-bs_save(_, _) -> error(limit).
-
-bs_assert_savepoint(Reg, #vst{current=#st{bsm=Saved}}) ->
-    case gb_sets:is_member(Reg, Saved) of
-	false -> error({no_save_point,Reg});
-	true -> ok
+assert_unique_map_keys([]) ->
+    %% There is no reason to use the get_map_elements and
+    %% has_map_fields instructions with empty lists.
+    error(empty_field_list);
+assert_unique_map_keys([_]) ->
+    ok;
+assert_unique_map_keys([_,_|_]=Ls) ->
+    Vs = [get_literal(L) || L <- Ls],
+    case length(Vs) =:= sets:size(sets:from_list(Vs)) of
+	true -> ok;
+	false -> error(keys_not_unique)
     end.
 
-bs_assert_state(#vst{current=#st{bsm=undefined}}) ->
-    error(no_bs_match_state);
-bs_assert_state(_) -> ok.
-
-
 %%%
 %%% New binary matching instructions.
 %%%
@@ -1234,55 +1056,7 @@ bsm_restore(Reg, SavePoint, Vst) ->
 	    end;
 	_ -> error({illegal_restore,SavePoint,range})
     end.
-    
-
-%%%
-%%% Validation of alignment in the bit syntax. (Currently, construction only.)
-%%%
-%%% We make sure that the aligned flag is only set when we can be sure of the
-%%% aligment.
-%%%
-
-bs_zero_bits(#vst{current=St}=Vst) ->
-    Vst#vst{current=St#st{bits=0}}.
-
-bs_align_check({bs_put_utf8,_,Flags,_}, #vst{current=#st{}=St}=Vst) ->
-    bs_verify_flags(Flags, St),
-    Vst;
-bs_align_check({bs_put_utf16,_,Flags,_}, #vst{current=#st{}=St}=Vst) ->
-    bs_verify_flags(Flags, St),
-    Vst;
-bs_align_check({bs_put_utf32,_,Flags,_}, #vst{current=#st{}=St}=Vst) ->
-    bs_verify_flags(Flags, St),
-    Vst;
-bs_align_check({_,_,Sz,U,Flags,_}, #vst{current=#st{bits=Bits}=St}=Vst) ->
-    bs_verify_flags(Flags, St),
-    bs_update_bits(Bits, Sz, U, St, Vst).
-
-bs_update_bits(undefined, _, _, _, Vst) -> Vst;
-bs_update_bits(Bits0, {integer,Sz}, U, St, Vst) ->
-    Bits = Bits0 + U*Sz,
-    Vst#vst{current=St#st{bits=Bits}};
-bs_update_bits(_, {atom,all}, _, _, Vst) ->
-    %% A binary will not change the alignment.
-    Vst;
-bs_update_bits(_, _, U, _, Vst) when U rem 8 =:= 0 ->
-    %% Units of 8, 16, and so on will not change the aligment.
-    Vst;
-bs_update_bits(_, _, _, St, Vst) ->
-    %% We can no longer be sure about aligment.
-    Vst#vst{current=St#st{bits=undefined}}.
-
-bs_verify_flags({field_flags,Fl}, #st{bits=Bits}) ->
-    case bs_is_aligned(Fl) of
-	false -> ok;
-	true when is_integer(Bits), Bits rem 8 =:= 0 -> ok;
-	true -> error({aligned_flag_set,{bits,Bits}})
-    end.
 
-bs_is_aligned(Fl) when is_integer(Fl) -> Fl band 1 =:= 1;
-bs_is_aligned(Fl) when is_list(Fl) -> member(aligned, Fl).
-    
 %%%
 %%% Keeping track of types.
 %%%
@@ -1298,35 +1072,26 @@ set_type_reg(Type, {x,X}, #vst{current=#st{x=Xs}=St}=Vst)
 set_type_reg(Type, Reg, Vst) ->
     set_type_y(Type, Reg, Vst).
 
-set_type_y(Type, {y,Y}=Reg, #vst{current=#st{y=Ys0,numy=NumY}=St}=Vst) 
+set_type_y(Type, {y,Y}=Reg, #vst{current=#st{y=Ys0}=St}=Vst)
   when is_integer(Y), 0 =< Y ->
     limit_check(Y),
-    case {Y,NumY} of
-	{_,none} ->
-	    error({no_stack_frame,Reg});
-	{_,_} when Y > NumY ->
-	    error({y_reg_out_of_range,Reg,NumY});
-	{_,_} ->
-	    Ys = if  Type =:= initialized_ct ->
-			 gb_trees:enter(Y, initialized, Ys0);
-		     true ->
-			 case gb_trees:lookup(Y, Ys0) of
-			     none -> 
-				 gb_trees:insert(Y, Type, Ys0);
-			     {value,uinitialized} ->
-				 gb_trees:insert(Y, Type, Ys0);
-			     {value,{catchtag,_}=Tag} ->
-				 error(Tag);
-			     {value,{trytag,_}=Tag} ->
-				 error(Tag);
-			     {value,_} ->
-				 gb_trees:update(Y, Type, Ys0)
-			 end
-		 end,
-	    Vst#vst{current=St#st{y=Ys}}
-    end;
+    Ys = case gb_trees:lookup(Y, Ys0) of
+	     none ->
+		 error({invalid_store,Reg,Type});
+	     {value,{catchtag,_}=Tag} ->
+		 error(Tag);
+	     {value,{trytag,_}=Tag} ->
+		 error(Tag);
+	     {value,_} ->
+		 gb_trees:update(Y, Type, Ys0)
+	 end,
+    Vst#vst{current=St#st{y=Ys}};
 set_type_y(Type, Reg, #vst{}) -> error({invalid_store,Reg,Type}).
 
+set_catch_end({y,Y}, #vst{current=#st{y=Ys0}=St}=Vst) ->
+    Ys = gb_trees:update(Y, initialized, Ys0),
+    Vst#vst{current=St#st{y=Ys}}.
+
 assert_term(Src, Vst) ->
     get_term_type(Src, Vst),
     ok.
@@ -1387,7 +1152,8 @@ assert_term(Src, Vst) ->
 %%
 %% number		Integer or Float of unknown value
 %%
-
+%% map			Map.
+%%
 
 assert_type(WantedType, Term, Vst) ->
     assert_type(WantedType, get_term_type(Term, Vst)).
@@ -1469,6 +1235,7 @@ get_term_type_1(nil=T, _) -> T;
 get_term_type_1({atom,A}=T, _) when is_atom(A) -> T;
 get_term_type_1({float,F}=T, _) when is_float(F) -> T;
 get_term_type_1({integer,I}=T, _) when is_integer(I) -> T;
+get_term_type_1({literal,Map}, _) when is_map(Map) -> map;
 get_term_type_1({literal,_}=T, _) -> T;
 get_term_type_1({x,X}=Reg, #vst{current=#st{x=Xs}}) when is_integer(X) ->
     case gb_trees:lookup(X, Xs) of
@@ -1523,14 +1290,13 @@ merge_states(L, St, Branched) when L =/= 0 ->
 	{value,OtherSt} -> merge_states_1(St, OtherSt)
     end.
 
-merge_states_1(#st{x=Xs0,y=Ys0,numy=NumY0,h=H0,ct=Ct0,bsm=Bsm0}=St,
-	       #st{x=Xs1,y=Ys1,numy=NumY1,h=H1,ct=Ct1,bsm=Bsm1}) ->
+merge_states_1(#st{x=Xs0,y=Ys0,numy=NumY0,h=H0,ct=Ct0},
+	       #st{x=Xs1,y=Ys1,numy=NumY1,h=H1,ct=Ct1}) ->
     NumY = merge_stk(NumY0, NumY1),
     Xs = merge_regs(Xs0, Xs1),
     Ys = merge_y_regs(Ys0, Ys1),
     Ct = merge_ct(Ct0, Ct1),
-    Bsm = merge_bsm(Bsm0, Bsm1),
-    St#st{x=Xs,y=Ys,numy=NumY,h=min(H0, H1),ct=Ct,bsm=Bsm}.
+    #st{x=Xs,y=Ys,numy=NumY,h=min(H0, H1),ct=Ct}.
 
 merge_stk(S, S) -> S;
 merge_stk(_, _) -> undecided.
@@ -1560,20 +1326,24 @@ merge_regs_1([], [_|_]) -> [];
 merge_regs_1([_|_], []) -> [].
 
 merge_y_regs(Rs0, Rs1) ->
-    Rs = merge_y_regs_1(gb_trees:to_list(Rs0), gb_trees:to_list(Rs1)),
-    gb_trees_from_list(Rs).
+    case {gb_trees:size(Rs0),gb_trees:size(Rs1)} of
+	{Sz0,Sz1} when Sz0 < Sz1 ->
+	    merge_y_regs_1(Sz0-1, Rs1, Rs0);
+	{_,Sz1} ->
+	    merge_y_regs_1(Sz1-1, Rs0, Rs1)
+    end.
 
-merge_y_regs_1([Same|Rs1], [Same|Rs2]) ->
-    [Same|merge_y_regs_1(Rs1, Rs2)];
-merge_y_regs_1([{R1,_}|Rs1], [{R2,_}|_]=Rs2) when R1 < R2 ->
-    [{R1,uninitialized}|merge_y_regs_1(Rs1, Rs2)];
-merge_y_regs_1([{R1,_}|_]=Rs1, [{R2,_}|Rs2]) when R1 > R2 ->
-    [{R2,uninitialized}|merge_y_regs_1(Rs1, Rs2)];
-merge_y_regs_1([{R,Type1}|Rs1], [{R,Type2}|Rs2]) ->
-    [{R,merge_types(Type1, Type2)}|merge_y_regs_1(Rs1, Rs2)];
-merge_y_regs_1([], []) -> [];
-merge_y_regs_1([], [_|_]=Rs) -> Rs;
-merge_y_regs_1([_|_]=Rs, []) -> Rs.
+merge_y_regs_1(Y, S, Regs0) when Y >= 0 ->
+    Type0 = gb_trees:get(Y, Regs0),
+    case gb_trees:get(Y, S) of
+	Type0 ->
+	    merge_y_regs_1(Y-1, S, Regs0);
+	Type1 ->
+	    Type = merge_types(Type0, Type1),
+	    Regs = gb_trees:update(Y, Type, Regs0),
+	    merge_y_regs_1(Y-1, S, Regs)
+    end;
+merge_y_regs_1(_, _, Regs) -> Regs.
 
 %% merge_types(Type1, Type2) -> Type
 %%  Return the most specific type possible.
@@ -1613,10 +1383,6 @@ merge_types(T1, T2) when T1 =/= T2 ->
     %% Too different. All we know is that the type is a 'term'.
     term.
 
-merge_bsm(undefined, _) -> undefined;
-merge_bsm(_, undefined) -> undefined;
-merge_bsm(Bsm0, Bsm1) -> gb_sets:intersection(Bsm0, Bsm1).
-
 tuple_sz([Sz]) -> Sz;
 tuple_sz(Sz) -> Sz.
 
@@ -1723,6 +1489,7 @@ bif_type(is_float, [_], _) -> bool;
 bif_type(is_function, [_], _) -> bool;
 bif_type(is_integer, [_], _) -> bool;
 bif_type(is_list, [_], _) -> bool;
+bif_type(is_map, [_], _) -> bool;
 bif_type(is_number, [_], _) -> bool;
 bif_type(is_pid, [_], _) -> bool;
 bif_type(is_port, [_], _) -> bool;
@@ -1752,6 +1519,7 @@ is_bif_safe(is_float, 1) -> true;
 is_bif_safe(is_function, 1) -> true;
 is_bif_safe(is_integer, 1) -> true;
 is_bif_safe(is_list, 1) -> true;
+is_bif_safe(is_map, 1) -> true;
 is_bif_safe(is_number, 1) -> true;
 is_bif_safe(is_pid, 1) -> true;
 is_bif_safe(is_port, 1) -> true;
@@ -1794,8 +1562,6 @@ return_type_1(M, F, A, _) when is_atom(M), is_atom(F), is_integer(A), A >= 0 ->
 
 return_type_erl(exit, 1) -> exception;
 return_type_erl(throw, 1) -> exception;
-return_type_erl(fault, 1) -> exception;
-return_type_erl(fault, 2) -> exception;
 return_type_erl(error, 1) -> exception;
 return_type_erl(error, 2) -> exception;
 return_type_erl(F, A) when is_atom(F), is_integer(A), A >= 0 -> term.
@@ -1816,6 +1582,7 @@ return_type_math(erf, 1) -> {float,[]};
 return_type_math(erfc, 1) -> {float,[]};
 return_type_math(exp, 1) -> {float,[]};
 return_type_math(log, 1) -> {float,[]};
+return_type_math(log2, 1) -> {float,[]};
 return_type_math(log10, 1) -> {float,[]};
 return_type_math(sqrt, 1) -> {float,[]};
 return_type_math(atan2, 2) -> {float,[]};
@@ -1837,52 +1604,3 @@ error(Error) -> exit(Error).
 -else.
 error(Error) -> throw(Error).
 -endif.
-
-
-%%%
-%%% Rewrite disassembled code to the same format as we used internally
-%%% to not have to worry later.
-%%%
-
-normalize_disassembled_code(Fs) ->
-    Index = ndc_index(Fs, []),
-    ndc(Fs, Index, []).
-
-ndc_index([{function,Name,Arity,Entry,_Code}|Fs], Acc) ->
-    ndc_index(Fs, [{{Name,Arity},Entry}|Acc]);
-ndc_index([], Acc) ->
-    gb_trees:from_orddict(lists:sort(Acc)).
-
-ndc([{function,Name,Arity,Entry,Code0}|Fs], D, Acc) ->
-    Code = ndc_1(Code0, D, []),
-    ndc(Fs, D, [{function,Name,Arity,Entry,Code}|Acc]);
-ndc([], _, Acc) -> reverse(Acc).
-    
-ndc_1([{call=Op,A,{_,F,A}}|Is], D, Acc) ->
-    ndc_1(Is, D, [{Op,A,{f,gb_trees:get({F,A}, D)}}|Acc]);
-ndc_1([{call_only=Op,A,{_,F,A}}|Is], D, Acc) ->
-    ndc_1(Is, D, [{Op,A,{f,gb_trees:get({F,A}, D)}}|Acc]);
-ndc_1([{call_last=Op,A,{_,F,A},Sz}|Is], D, Acc) ->
-    ndc_1(Is, D, [{Op,A,{f,gb_trees:get({F,A}, D)},Sz}|Acc]);
-ndc_1([{arithbif,Op,F,Src,Dst}|Is], D, Acc) ->
-    ndc_1(Is, D, [{bif,Op,F,Src,Dst}|Acc]);
-ndc_1([{arithfbif,Op,F,Src,Dst}|Is], D, Acc) ->
-    ndc_1(Is, D, [{bif,Op,F,Src,Dst}|Acc]);
-ndc_1([{test,bs_start_match2=Op,F,[A1,Live,A3,Dst]}|Is], D, Acc) ->
-    ndc_1(Is, D, [{test,Op,F,Live,[A1,A3],Dst}|Acc]);
-ndc_1([{test,bs_get_binary2=Op,F,[A1,Live,A3,A4,A5,Dst]}|Is], D, Acc) ->
-    ndc_1(Is, D, [{test,Op,F,Live,[A1,A3,A4,A5],Dst}|Acc]);
-ndc_1([{test,bs_get_float2=Op,F,[A1,Live,A3,A4,A5,Dst]}|Is], D, Acc) ->
-    ndc_1(Is, D, [{test,Op,F,Live,[A1,A3,A4,A5],Dst}|Acc]);
-ndc_1([{test,bs_get_integer2=Op,F,[A1,Live,A3,A4,A5,Dst]}|Is], D, Acc) ->
-    ndc_1(Is, D, [{test,Op,F,Live,[A1,A3,A4,A5],Dst}|Acc]);
-ndc_1([{test,bs_get_utf8=Op,F,[A1,Live,A3,Dst]}|Is], D, Acc) ->
-    ndc_1(Is, D, [{test,Op,F,Live,[A1,A3],Dst}|Acc]);
-ndc_1([{test,bs_get_utf16=Op,F,[A1,Live,A3,Dst]}|Is], D, Acc) ->
-    ndc_1(Is, D, [{test,Op,F,Live,[A1,A3],Dst}|Acc]);
-ndc_1([{test,bs_get_utf32=Op,F,[A1,Live,A3,Dst]}|Is], D, Acc) ->
-    ndc_1(Is, D, [{test,Op,F,Live,[A1,A3],Dst}|Acc]);
-ndc_1([I|Is], D, Acc) ->
-    ndc_1(Is, D, [I|Acc]);
-ndc_1([], _, Acc) ->
-    reverse(Acc).
diff --git a/lib/compiler/src/beam_z.erl b/lib/compiler/src/beam_z.erl
index c2a6ef604e..47e786034d 100644
--- a/lib/compiler/src/beam_z.erl
+++ b/lib/compiler/src/beam_z.erl
@@ -74,22 +74,21 @@ undo_rename({bs_init,F,{I,Extra,U,Flags},Live,[Sz,Src],Dst}) ->
     {I,F,Sz,Extra,Live,U,Src,Flags,Dst};
 undo_rename({bs_init,_,bs_init_writable=I,_,_,_}) ->
     I;
+undo_rename({test,bs_match_string=Op,F,[Ctx,Bin0]}) ->
+    Bits = bit_size(Bin0),
+    Bin = case Bits rem 8 of
+	      0 -> Bin0;
+	      Rem -> <<Bin0/bitstring,0:(8-Rem)>>
+	  end,
+    {test,Op,F,[Ctx,Bits,{string,binary_to_list(Bin)}]};
 undo_rename({put_map,Fail,assoc,S,D,R,L}) ->
     {put_map_assoc,Fail,S,D,R,L};
 undo_rename({put_map,Fail,exact,S,D,R,L}) ->
     {put_map_exact,Fail,S,D,R,L};
 undo_rename({test,has_map_fields,Fail,[Src|List]}) ->
-    {test,has_map_fields,Fail,Src,{list,[to_typed_literal(V)||V<-List]}};
-undo_rename({get_map_elements,Fail,Src,{list, List}}) ->
-    {get_map_elements,Fail,Src,{list,[to_typed_literal(V)||V<-List]}};
+    {test,has_map_fields,Fail,Src,{list,List}};
+undo_rename({get_map_elements,Fail,Src,{list,List}}) ->
+    {get_map_elements,Fail,Src,{list,List}};
 undo_rename({select,I,Reg,Fail,List}) ->
     {I,Reg,Fail,{list,List}};
 undo_rename(I) -> I.
-
-%% to_typed_literal(Arg)
-%% transform Arg to specific literal i.e. float | integer | atom if applicable
-to_typed_literal({literal, V}) when is_float(V) -> {float, V};
-to_typed_literal({literal, V}) when is_atom(V) -> {atom, V};
-to_typed_literal({literal, V}) when is_integer(V) -> {integer, V};
-to_typed_literal({literal, []}) -> nil;
-to_typed_literal(V) -> V.
diff --git a/lib/compiler/src/cerl.erl b/lib/compiler/src/cerl.erl
index 9d6768b157..ea960abc1a 100644
--- a/lib/compiler/src/cerl.erl
+++ b/lib/compiler/src/cerl.erl
@@ -123,11 +123,14 @@
 	 bitstr_flags/1,
 
 	 %% keep map exports here for now
+	 c_map_pattern/1,
+	 is_c_map/1,
 	 map_es/1,
 	 map_arg/1,
 	 update_c_map/3,
 	 c_map/1, is_c_map_empty/1,
 	 ann_c_map/2, ann_c_map/3,
+	 ann_c_map_pattern/2,
 	 map_pair_op/1,map_pair_key/1,map_pair_val/1,
 	 update_c_map_pair/4,
 	 c_map_pair/2,
@@ -135,7 +138,8 @@
      ]).
 
 -export_type([c_binary/0, c_bitstr/0, c_call/0, c_clause/0, c_cons/0, c_fun/0,
-	      c_literal/0, c_map/0, c_map_pair/0, c_module/0, c_tuple/0,
+	      c_let/0, c_literal/0, c_map/0, c_map_pair/0,
+	      c_module/0, c_tuple/0,
 	      c_values/0, c_var/0, cerl/0, var_name/0]).
 
 -include("core_parse.hrl").
@@ -252,7 +256,7 @@
 %% @see c_primop/2
 %% @see c_receive/1
 %% @see c_seq/2
-%% @see c_try/3
+%% @see c_try/5
 %% @see c_tuple/1
 %% @see c_values/1
 %% @see c_var/1
@@ -431,6 +435,8 @@ is_literal_term([H | T]) ->
 is_literal_term(T) when is_tuple(T) ->
     is_literal_term_list(tuple_to_list(T));
 is_literal_term(B) when is_bitstring(B) -> true;
+is_literal_term(M) when is_map(M) ->
+    is_literal_term_list(maps:to_list(M));
 is_literal_term(_) ->
     false.
 
@@ -1450,7 +1456,7 @@ is_proper_list(_) ->
 %% X4]</code>.
 %%
 %% @see c_cons/2
-%% @see c_nil/1
+%% @see c_nil/0
 %% @see is_c_list/1
 %% @see list_length/1
 %% @see make_list/2
@@ -1481,7 +1487,7 @@ abstract_list([]) ->
 %% efficient.</p>
 %%
 %% @see c_cons/2
-%% @see c_nil/1
+%% @see c_nil/0
 %% @see is_c_list/1
 %% @see list_elements/1
 
@@ -1577,6 +1583,20 @@ ann_make_list(_, [], Node) ->
 %% ---------------------------------------------------------------------
 %% maps
 
+%% @spec is_c_map(Node::cerl()) -> boolean()
+%%
+%% @doc Returns <code>true</code> if <code>Node</code> is an abstract
+%% map constructor, otherwise <code>false</code>.
+
+-spec is_c_map(cerl()) -> boolean().
+
+is_c_map(#c_map{}) ->
+    true;
+is_c_map(#c_literal{val = V}) when is_map(V) ->
+    true;
+is_c_map(_) ->
+    false.
+
 -spec map_es(c_map()) -> [c_map_pair()].
 
 map_es(#c_map{es = Es}) ->
@@ -1590,7 +1610,17 @@ map_arg(#c_map{arg=M}) ->
 -spec c_map([c_map_pair()]) -> c_map().
 
 c_map(Pairs) ->
-    #c_map{es=Pairs}.
+    ann_c_map([], Pairs).
+
+-spec c_map_pattern([c_map_pair()]) -> c_map().
+
+c_map_pattern(Pairs) ->
+    #c_map{es=Pairs, is_pat=true}.
+
+-spec ann_c_map_pattern([term()], [c_map_pair()]) -> c_map().
+
+ann_c_map_pattern(As, Pairs) ->
+    #c_map{anno=As, es=Pairs, is_pat=true}.
 
 -spec is_c_map_empty(c_map() | c_literal()) -> boolean().
 
@@ -1598,25 +1628,13 @@ is_c_map_empty(#c_map{ es=[] }) -> true;
 is_c_map_empty(#c_literal{val=M}) when is_map(M),map_size(M) =:= 0 -> true;
 is_c_map_empty(_) -> false.
 
--spec ann_c_map([term()], [cerl()]) -> c_map() | c_literal().
+-spec ann_c_map([term()], [c_map_pair()]) -> c_map() | c_literal().
 
-ann_c_map(As,Es) ->
+ann_c_map(As, Es) ->
     ann_c_map(As, #c_literal{val=#{}}, Es).
 
 -spec ann_c_map([term()], c_map() | c_literal(), [c_map_pair()]) -> c_map() | c_literal().
 
-ann_c_map(As,#c_literal{val=Mval}=M,Es) when is_map(Mval), map_size(Mval) =:= 0 ->
-    Pairs = [[Ck,Cv]||#c_map_pair{key=Ck,val=Cv}<-Es],
-    IsLit = lists:foldl(fun(Pair,Res) ->
-		Res andalso is_lit_list(Pair)
-	end, true, Pairs),
-    Fun = fun(Pair) -> [K,V] = lit_list_vals(Pair), {K,V} end,
-    case IsLit of
-	false ->
-	    #c_map{arg=M, es=Es, anno=As };
-	true ->
-	    #c_literal{anno=As, val=maps:from_list(lists:map(Fun, Pairs))}
-	end;
 ann_c_map(As,#c_literal{val=M},Es) when is_map(M) ->
     fold_map_pairs(As,Es,M);
 ann_c_map(As,M,Es) ->
@@ -1644,14 +1662,14 @@ fold_map_pairs(As,[#c_map_pair{op=#c_literal{val=exact},key=Ck,val=Cv}=E|Es],M)
 	    end;
 	false ->
 	    #c_map{arg=#c_literal{val=M,anno=As}, es=[E|Es], anno=As }
-    end;
-fold_map_pairs(As,Es,M) ->
-    #c_map{arg=#c_literal{val=M,anno=As}, es=Es, anno=As }.
+    end.
 
-%-spec update_c_map(c_map() | c_literal(), [c_map_pair()]) -> c_map() | c_literal().
+-spec update_c_map(c_map(), cerl(), [cerl()]) -> c_map() | c_literal().
 
-update_c_map(Old,M,Es) ->
-    #c_map{arg=M, es = Es, anno = get_ann(Old)}.
+update_c_map(#c_map{is_pat=true}=Old, M, Es) ->
+    Old#c_map{arg=M, es=Es};
+update_c_map(#c_map{is_pat=false}=Old, M, Es) ->
+    ann_c_map(get_ann(Old), M, Es).
 
 map_pair_key(#c_map_pair{key=K}) -> K.
 map_pair_val(#c_map_pair{val=V}) -> V.
@@ -1974,7 +1992,7 @@ update_c_fname(Node, Atom, Arity) ->
 %%
 %% @see c_fname/2
 %% @see c_var/1
-%% @see c_var_name/1
+%% @see var_name/1
 
 -spec is_c_fname(cerl()) -> boolean().
 
@@ -3063,10 +3081,12 @@ pat_vars(Node, Vs) ->
 	map ->
 	    pat_list_vars(map_es(Node), Vs);
 	map_pair ->
-	    pat_list_vars([map_pair_op(Node),map_pair_key(Node),map_pair_val(Node)],Vs);
+	    %% map_pair_key is not a pattern var, excluded
+	    pat_list_vars([map_pair_op(Node),map_pair_val(Node)],Vs);
 	binary ->
 	    pat_list_vars(binary_segments(Node), Vs);
 	bitstr ->
+	    %% bitstr_size is not a pattern var, excluded
 	    pat_vars(bitstr_val(Node), Vs);
 	alias ->
 	    pat_vars(alias_pat(Node), [alias_var(Node) | Vs])
@@ -3650,7 +3670,7 @@ c_try(Expr, Vs, Body, Evs, Handler) ->
 %% @spec ann_c_try(As::[term()], Expression::cerl(),
 %%                 Variables::[cerl()], Body::cerl(),
 %%                 EVars::[cerl()], Handler::cerl()) -> cerl()
-%% @see c_try/3
+%% @see c_try/5
 
 -spec ann_c_try([term()], cerl(), [cerl()], cerl(), [cerl()], cerl()) ->
         c_try().
@@ -3663,7 +3683,7 @@ ann_c_try(As, Expr, Vs, Body, Evs, Handler) ->
 %% @spec update_c_try(Old::cerl(), Expression::cerl(),
 %%                    Variables::[cerl()], Body::cerl(),
 %%                    EVars::[cerl()], Handler::cerl()) -> cerl()
-%% @see c_try/3
+%% @see c_try/5
 
 -spec update_c_try(c_try(), cerl(), [cerl()], cerl(), [cerl()], cerl()) ->
         c_try().
@@ -3678,7 +3698,7 @@ update_c_try(Node, Expr, Vs, Body, Evs, Handler) ->
 %% @doc Returns <code>true</code> if <code>Node</code> is an abstract
 %% try-expression, otherwise <code>false</code>.
 %%
-%% @see c_try/3
+%% @see c_try/5
 
 -spec is_c_try(cerl()) -> boolean().
 
@@ -3692,7 +3712,7 @@ is_c_try(_) ->
 %%
 %% @doc Returns the expression subtree of an abstract try-expression.
 %%
-%% @see c_try/3
+%% @see c_try/5
 
 -spec try_arg(c_try()) -> cerl().
 
@@ -3705,7 +3725,7 @@ try_arg(Node) ->
 %% @doc Returns the list of success variable subtrees of an abstract
 %% try-expression.
 %%
-%% @see c_try/3
+%% @see c_try/5
 
 -spec try_vars(c_try()) -> [cerl()].
 
@@ -3717,7 +3737,7 @@ try_vars(Node) ->
 %%
 %% @doc Returns the success body subtree of an abstract try-expression.
 %%
-%% @see c_try/3
+%% @see c_try/5
 
 -spec try_body(c_try()) -> cerl().
 
@@ -3730,7 +3750,7 @@ try_body(Node) ->
 %% @doc Returns the list of exception variable subtrees of an abstract
 %% try-expression.
 %%
-%% @see c_try/3
+%% @see c_try/5
 
 -spec try_evars(c_try()) -> [cerl()].
 
@@ -3743,7 +3763,7 @@ try_evars(Node) ->
 %% @doc Returns the exception body subtree of an abstract
 %% try-expression.
 %%
-%% @see c_try/3
+%% @see c_try/5
 
 -spec try_handler(c_try()) -> cerl().
 
@@ -3765,7 +3785,7 @@ try_handler(Node) ->
 %% @see update_c_catch/2
 %% @see is_c_catch/1
 %% @see catch_body/1
-%% @see c_try/3
+%% @see c_try/5
 
 -spec c_catch(cerl()) -> c_catch().
 
diff --git a/lib/compiler/src/cerl_clauses.erl b/lib/compiler/src/cerl_clauses.erl
index 87bd47c08b..ef74c5b76f 100644
--- a/lib/compiler/src/cerl_clauses.erl
+++ b/lib/compiler/src/cerl_clauses.erl
@@ -354,29 +354,29 @@ match(P, E, Bs) ->
 			    {false, Bs}
 		    end
 	    end;
-    map ->
-        %% The most we can do is to say "definitely no match" if a
-        %% map pattern is matched against non-map data.
-        case E of
-            any ->
-                {false, Bs};
-            _ ->
-                case type(E) of
-		    literal ->
-			case is_map(concrete(E)) of
-			    false ->
-				none;
-			    true ->
-				{false, Bs}
-			end;
-                    cons ->
-                        none;
-                    tuple ->
-                        none;
-                    _ ->
-                        {false, Bs}
-                end
-        end;
+	map ->
+	    %% The most we can do is to say "definitely no match" if a
+	    %% map pattern is matched against non-map data.
+	    case E of
+		any ->
+		    {false, Bs};
+		_ ->
+		    case type(E) of
+			literal ->
+			    case is_map(concrete(E)) of
+				false ->
+				    none;
+				true ->
+				    {false, Bs}
+			    end;
+			cons ->
+			    none;
+			tuple ->
+			    none;
+			_ ->
+			    {false, Bs}
+		    end
+	    end;
 	_ ->
 	    match_1(P, E, Bs)
     end.
diff --git a/lib/compiler/src/cerl_inline.erl b/lib/compiler/src/cerl_inline.erl
index 75740e8b9d..02cdb966ce 100644
--- a/lib/compiler/src/cerl_inline.erl
+++ b/lib/compiler/src/cerl_inline.erl
@@ -445,15 +445,14 @@ i_var_1(R, Opnd, Ctxt, Env, S) ->
 	    residualize_var(R, S);
 	false ->
 	    S1 = st__mark_inner_pending(L, S),
-	    case catch {ok, visit(Opnd, S1)} of
-		{ok, {E, S2}} ->
+	    try visit(Opnd, S1) of
+		{E, S2} ->
 		    %% Note that we pass the current environment and
 		    %% context to `copy', but not the current renaming.
 		    S3 = st__clear_inner_pending(L, S2),
-		    copy(R, Opnd, E, Ctxt, Env, S3);
-		{'EXIT', X} ->
-		    exit(X);
-		X ->
+		    copy(R, Opnd, E, Ctxt, Env, S3)
+	    catch
+		throw:X ->
  		    %% If we use destructive update for the
  		    %% `inner-pending' flag, we must make sure to clear
  		    %% it also if we make a nonlocal return.
@@ -1128,8 +1127,8 @@ i_call_3(M, F, As, E, Ctxt, Env, S) ->
     %% Note that we extract the results of argument expessions here; the
     %% expressions could still be sequences with side effects.
     Vs = [concrete(result(A)) || A <- As],
-    case catch {ok, apply(atom_val(M), atom_val(F), Vs)} of
-	{ok, V} ->
+    try apply(atom_val(M), atom_val(F), Vs) of
+	V ->
 	    %% Evaluation completed normally - try to turn the result
 	    %% back into a syntax tree (representing a literal).
 	    case is_literal_term(V) of
@@ -1142,8 +1141,9 @@ i_call_3(M, F, As, E, Ctxt, Env, S) ->
 		false ->
 		    %% The result could not be represented as a literal.
 		    i_call_4(M, F, As, E, Ctxt, Env, S)
-	    end;
-	_ ->
+	    end
+    catch
+	error:_ ->
 	    %% The evaluation attempt did not complete normally.
 	    i_call_4(M, F, As, E, Ctxt, Env, S)
     end.
@@ -1341,23 +1341,23 @@ i_bitstr(E, Ren, Env, S) ->
     S3 = count_size(weight(bitstr), S2),
     {update_c_bitstr(E, Val, Size, Unit, Type, Flags), S3}.
 
-i_map(E, Ctx, Ren, Env, S) ->
+i_map(E, Ctx, Ren, Env, S0) ->
     %% Visit the segments for value.
-    {M1, S1} = i(map_arg(E), value, Ren, Env, S),
+    {M1, S1} = i(map_arg(E), value, Ren, Env, S0),
     {Es, S2} = mapfoldl(fun (E, S) ->
 		i_map_pair(E, Ctx, Ren, Env, S)
 	end, S1, map_es(E)),
     S3 = count_size(weight(map), S2),
     {update_c_map(E, M1,Es), S3}.
 
-i_map_pair(E, Ctx, Ren, Env, S) ->
-    %% It is not necessary to visit the Op and Key fields,
-    %% since these are always literals.
-    {Val, S1} = i(map_pair_val(E), Ctx, Ren, Env, S),
+i_map_pair(E, Ctx, Ren, Env, S0) ->
+    %% It is not necessary to visit the Op field
+    %% since it is always a literal.
+    {Key, S1} = i(map_pair_key(E), value, Ren, Env, S0),
+    {Val, S2} = i(map_pair_val(E), Ctx, Ren, Env, S1),
     Op = map_pair_op(E),
-    Key = map_pair_key(E),
-    S2 = count_size(weight(map_pair), S1),
-    {update_c_map_pair(E, Op, Key, Val), S2}.
+    S3 = count_size(weight(map_pair), S2),
+    {update_c_map_pair(E, Op, Key, Val), S3}.
 
 
 %% This is a simplified version of `i_pattern', for lists of parameter
@@ -1420,15 +1420,11 @@ i_pattern(E, Ren, Env, Ren0, Env0, S) ->
 	    S2 = count_size(weight(binary), S1),
 	    {update_c_binary(E, Es), S2};
 	map ->
-	    %% map patterns should not have args
-	    M = map_arg(E),
-
 	    {Es, S1} = mapfoldl(fun (E, S) ->
 			i_map_pair_pattern(E, Ren, Env, Ren0, Env0, S)
-		end,
-		S, map_es(E)),
+		end, S, map_es(E)),
 	    S2 = count_size(weight(map), S1),
-	    {update_c_map(E, M, Es), S2};
+	    {update_c_map(E, map_arg(E), Es), S2};
 	_ ->
 	    case is_literal(E) of
 		true ->
@@ -1464,12 +1460,12 @@ i_bitstr_pattern(E, Ren, Env, Ren0, Env0, S) ->
 
 i_map_pair_pattern(E, Ren, Env, Ren0, Env0, S) ->
     %% It is not necessary to visit the Op it is always a literal.
-    %% Same goes for Key
-    {Val, S1} = i_pattern(map_pair_val(E), Ren, Env, Ren0, Env0, S),
+    %% Key is an expression
+    {Key, S1} = i(map_pair_key(E), value, Ren0, Env0, S),
+    {Val, S2} = i_pattern(map_pair_val(E), Ren, Env, Ren0, Env0, S1),
     Op = map_pair_op(E), %% should be 'exact' literal
-    Key  = map_pair_key(E),
-    S2 = count_size(weight(map_pair), S1),
-    {update_c_map_pair(E, Op, Key, Val), S2}.
+    S3 = count_size(weight(map_pair), S2),
+    {update_c_map_pair(E, Op, Key, Val), S3}.
 
 
 %% ---------------------------------------------------------------------
@@ -1740,12 +1736,11 @@ copy_1(R, Opnd, E, Ctxt, Env, S) ->
 
 copy_inline(R, Opnd, E, Ctxt, Env, S) ->
     S1 = st__mark_outer_pending(Opnd#opnd.loc, S),
-    case catch {ok, copy_inline_1(R, E, Ctxt, Env, S1)} of
-        {ok, {E1, S2}} ->
-            {E1, st__clear_outer_pending(Opnd#opnd.loc, S2)};
-        {'EXIT', X} ->
-            exit(X);
-        X ->
+    try copy_inline_1(R, E, Ctxt, Env, S1) of
+        {E1, S2} ->
+            {E1, st__clear_outer_pending(Opnd#opnd.loc, S2)}
+    catch
+        throw:X ->
  	    %% If we use destructive update for the `outer-pending'
  	    %% flag, we must make sure to clear it upon a nonlocal
  	    %% return.
@@ -1762,19 +1757,16 @@ copy_inline_1(R, E, Ctxt, Env, S) ->
             copy_inline_2(R, E, Ctxt, Env, S);
         false ->
             S1 = new_active_effort(get_effort_limit(S), S),
-            case catch {ok, copy_inline_2(R, E, Ctxt, Env, S1)} of
-                {ok, {E1, S2}} ->
+            try copy_inline_2(R, E, Ctxt, Env, S1) of
+                {E1, S2} ->
                     %% Revert to the old effort counter.
-                    {E1, revert_effort(S, S2)};
-                {counter_exceeded, effort, _} ->
+                    {E1, revert_effort(S, S2)}
+	    catch
+                throw:{counter_exceeded, effort, _} ->
                     %% Aborted this inlining attempt because too much
                     %% effort was spent. Residualize the variable and
                     %% revert to the previous state.
-                    residualize_var(R, S);
-                {'EXIT', X} ->
-                    exit(X);
-                X ->
-                    throw(X)
+                    residualize_var(R, S)
             end
     end.
 
@@ -1800,11 +1792,12 @@ copy_inline_2(R, E, Ctxt, Env, S) ->
     %% close to zero at this point. (This is an extension to the
     %% original algorithm.)
     S1 = new_active_size(Limit + apply_size(length(Ctxt#app.opnds)), S),
-    case catch {ok, inline(E, Ctxt, ren__identity(), Env, S1)} of
-        {ok, {E1, S2}} ->
+    try inline(E, Ctxt, ren__identity(), Env, S1) of
+        {E1, S2} ->
             %% Revert to the old size counter.
-            {E1, revert_size(S, S2)};
-        {counter_exceeded, size, S2} ->
+            {E1, revert_size(S, S2)}
+    catch
+        throw:{counter_exceeded, size, S2} ->
             %% Aborted this inlining attempt because it got too big.
             %% Residualize the variable and revert to the old size
             %% counter. (It is important that we do not also revert the
@@ -1817,11 +1810,7 @@ copy_inline_2(R, E, Ctxt, Env, S) ->
   	    %% must make sure to clear the flags of any nested
   	    %% app-contexts upon aborting; see `inline' for details.
  	    S4 = reset_nested_apps(Ctxt, S3),    % for effect
-            residualize_var(R, S4);
-        {'EXIT', X} ->
-            exit(X);
-        X ->
-            throw(X)
+            residualize_var(R, S4)
     end.
 
 reset_nested_apps(#app{ctxt = Ctxt, loc = L}, S) ->
diff --git a/lib/compiler/src/cerl_sets.erl b/lib/compiler/src/cerl_sets.erl
new file mode 100644
index 0000000000..4df78dc432
--- /dev/null
+++ b/lib/compiler/src/cerl_sets.erl
@@ -0,0 +1,206 @@
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 2000-2015. All Rights Reserved.
+%% 
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%% 
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%% 
+%% %CopyrightEnd%
+%%
+
+-module(cerl_sets).
+
+%% Standard interface.
+-export([new/0,is_set/1,size/1,to_list/1,from_list/1]).
+-export([is_element/2,add_element/2,del_element/2]).
+-export([union/2,union/1,intersection/2,intersection/1]).
+-export([is_disjoint/2]).
+-export([subtract/2,is_subset/2]).
+-export([fold/3,filter/2]).
+
+-export_type([set/0, set/1]).
+
+%%------------------------------------------------------------------------------
+
+-type set() :: set(_).
+-opaque set(Element) :: #{Element => 'ok'}.
+
+%%------------------------------------------------------------------------------
+
+%% new() -> Set
+-spec new() -> set().
+
+new() -> #{}.
+
+%% is_set(Set) -> boolean().
+%%  Return 'true' if Set is a set of elements, else 'false'.
+-spec is_set(Set) -> boolean() when
+      Set :: term().
+
+is_set(S) when is_map(S) -> true;
+is_set(_) -> false.
+
+%% size(Set) -> int().
+%%  Return the number of elements in Set.
+-spec size(Set) -> non_neg_integer() when
+      Set :: set().
+
+size(S) -> maps:size(S).
+
+%% to_list(Set) -> [Elem].
+%%  Return the elements in Set as a list.
+-spec to_list(Set) -> List when
+      Set :: set(Element),
+      List :: [Element].
+
+to_list(S) -> maps:keys(S).
+
+%% from_list([Elem]) -> Set.
+%%  Build a set from the elements in List.
+-spec from_list(List) -> Set when
+      List :: [Element],
+      Set :: set(Element).
+from_list(Ls) -> maps:from_list([{K,ok}||K<-Ls]).
+
+%% is_element(Element, Set) -> boolean().
+%%  Return 'true' if Element is an element of Set, else 'false'.
+-spec is_element(Element, Set) -> boolean() when
+      Set :: set(Element).
+
+is_element(E,S) ->
+    case S of
+        #{E := _} -> true;
+        _ -> false
+    end.
+
+%% add_element(Element, Set) -> Set.
+%%  Return Set with Element inserted in it.
+-spec add_element(Element, Set1) -> Set2 when
+      Set1 :: set(Element),
+      Set2 :: set(Element).
+
+add_element(E,S) -> S#{E=>ok}.
+
+-spec del_element(Element, Set1) -> Set2 when
+      Set1 :: set(Element),
+      Set2 :: set(Element).
+
+%% del_element(Element, Set) -> Set.
+%%  Return Set but with Element removed.
+del_element(E,S) -> maps:remove(E,S).
+
+%% union(Set1, Set2) -> Set
+%%  Return the union of Set1 and Set2.
+-spec union(Set1, Set2) -> Set3 when
+      Set1 :: set(Element),
+      Set2 :: set(Element),
+      Set3 :: set(Element).
+
+union(S1,S2) -> maps:merge(S1,S2).
+
+%% union([Set]) -> Set
+%%  Return the union of the list of sets.
+-spec union(SetList) -> Set when
+      SetList :: [set(Element)],
+      Set :: set(Element).
+
+union([S1,S2|Ss]) ->
+    union1(union(S1, S2), Ss);
+union([S]) -> S;
+union([]) -> new().
+
+union1(S1, [S2|Ss]) ->
+    union1(union(S1, S2), Ss);
+union1(S1, []) -> S1.
+
+%% intersection(Set1, Set2) -> Set.
+%%  Return the intersection of Set1 and Set2.
+-spec intersection(Set1, Set2) -> Set3 when
+      Set1 :: set(Element),
+      Set2 :: set(Element),
+      Set3 :: set(Element).
+
+intersection(S1, S2) ->
+    filter(fun (E) -> is_element(E, S1) end, S2).
+
+%% intersection([Set]) -> Set.
+%%  Return the intersection of the list of sets.
+-spec intersection(SetList) -> Set when
+      SetList :: [set(Element),...],
+      Set :: set(Element).
+
+intersection([S1,S2|Ss]) ->
+    intersection1(intersection(S1, S2), Ss);
+intersection([S]) -> S.
+
+intersection1(S1, [S2|Ss]) ->
+    intersection1(intersection(S1, S2), Ss);
+intersection1(S1, []) -> S1.
+
+%% is_disjoint(Set1, Set2) -> boolean().
+%%  Check whether Set1 and Set2 are disjoint.
+-spec is_disjoint(Set1, Set2) -> boolean() when
+      Set1 :: set(Element),
+      Set2 :: set(Element).
+
+is_disjoint(S1, S2) when map_size(S1) < map_size(S2) ->
+    fold(fun (_, false) -> false;
+	     (E, true) -> not is_element(E, S2)
+	 end, true, S1);
+is_disjoint(S1, S2) ->
+    fold(fun (_, false) -> false;
+	     (E, true) -> not is_element(E, S1)
+	 end, true, S2).
+
+%% subtract(Set1, Set2) -> Set.
+%%  Return all and only the elements of Set1 which are not also in
+%%  Set2.
+-spec subtract(Set1, Set2) -> Set3 when
+      Set1 :: set(Element),
+      Set2 :: set(Element),
+      Set3 :: set(Element).
+
+subtract(S1, S2) ->
+    filter(fun (E) -> not is_element(E, S2) end, S1).
+
+%% is_subset(Set1, Set2) -> boolean().
+%%  Return 'true' when every element of Set1 is also a member of
+%%  Set2, else 'false'.
+-spec is_subset(Set1, Set2) -> boolean() when
+      Set1 :: set(Element),
+      Set2 :: set(Element).
+
+is_subset(S1, S2) ->
+    fold(fun (E, Sub) -> Sub andalso is_element(E, S2) end, true, S1).
+
+%% fold(Fun, Accumulator, Set) -> Accumulator.
+%%  Fold function Fun over all elements in Set and return Accumulator.
+-spec fold(Function, Acc0, Set) -> Acc1 when
+      Function :: fun((Element, AccIn) -> AccOut),
+      Set :: set(Element),
+      Acc0 :: Acc,
+      Acc1 :: Acc,
+      AccIn :: Acc,
+      AccOut :: Acc.
+
+fold(F, Init, D) ->
+    lists:foldl(fun(E,Acc) -> F(E,Acc) end,Init,maps:keys(D)).
+
+%% filter(Fun, Set) -> Set.
+%%  Filter Set with Fun.
+-spec filter(Pred, Set1) -> Set2 when
+      Pred :: fun((Element) -> boolean()),
+      Set1 :: set(Element),
+      Set2 :: set(Element).
+
+filter(F, D) ->
+    maps:from_list(lists:filter(fun({K,_}) -> F(K) end, maps:to_list(D))).
diff --git a/lib/compiler/src/cerl_trees.erl b/lib/compiler/src/cerl_trees.erl
index e53bdd4efb..f1bf0e02e7 100644
--- a/lib/compiler/src/cerl_trees.erl
+++ b/lib/compiler/src/cerl_trees.erl
@@ -19,7 +19,7 @@
 %% @doc Basic functions on Core Erlang abstract syntax trees.
 %%
 %% <p>Syntax trees are defined in the module <a
-%% href=""><code>cerl</code></a>.</p>
+%% href="cerl"><code>cerl</code></a>.</p>
 %%
 %% @type cerl() = cerl:cerl()
 
@@ -520,9 +520,9 @@ variables(T, S) ->
 	tuple ->
 	    vars_in_list(tuple_es(T), S);
 	map ->
-	    vars_in_list(map_es(T), S);
+	    vars_in_list([map_arg(T)|map_es(T)], S);
 	map_pair ->
-	    vars_in_list([map_pair_op(T),map_pair_key(T), map_pair_val(T)], S);
+	    vars_in_list([map_pair_op(T),map_pair_key(T),map_pair_val(T)], S);
 	'let' ->
 	    Vs = variables(let_body(T), S),
 	    Vs1 = var_list_names(let_vars(T)),
diff --git a/lib/compiler/src/compile.erl b/lib/compiler/src/compile.erl
index c7d91070f6..0158cf64db 100644
--- a/lib/compiler/src/compile.erl
+++ b/lib/compiler/src/compile.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -41,7 +41,7 @@
 
 -type option() :: atom() | {atom(), term()} | {'d', atom(), term()}.
 
--type err_info() :: {erl_scan:line() | 'none',
+-type err_info() :: {erl_anno:line() | 'none',
 		     module(), term()}. %% ErrorDescriptor
 -type errors()   :: [{file:filename(), [err_info()]}].
 -type warnings() :: [{file:filename(), [err_info()]}].
@@ -132,7 +132,8 @@ env_default_opts() ->
 	Str when is_list(Str) ->
 	    case erl_scan:string(Str) of
 		{ok,Tokens,_} ->
-		    case erl_parse:parse_term(Tokens ++ [{dot, 1}]) of
+                    Dot = {dot, erl_anno:new(1)},
+		    case erl_parse:parse_term(Tokens ++ [Dot]) of
 			{ok,List} when is_list(List) -> List;
 			{ok,Term} -> [Term];
 			{error,_Reason} ->
@@ -285,11 +286,20 @@ internal_comp(Passes, File, Suffix, St0) ->
     St1 = St0#compile{filename=File, dir=Dir, base=Base,
 		      ifile=erlfile(Dir, Base, Suffix),
 		      ofile=objfile(Base, St0)},
-    Run = case member(time, St1#compile.options) of
-	      true  ->
-		  io:format("Compiling ~tp\n", [File]),
-		  fun run_tc/2;
-	      false -> fun({_Name,Fun}, St) -> catch Fun(St) end
+    Opts = St1#compile.options,
+    Run0 = case member(time, Opts) of
+	       true  ->
+		   io:format("Compiling ~tp\n", [File]),
+		   fun run_tc/2;
+	       false -> fun({_Name,Fun}, St) -> catch Fun(St) end
+	   end,
+    Run = case keyfind(eprof, 1, Opts) of
+	      {eprof,EprofPass} ->
+		  fun(P, St) ->
+			  run_eprof(P, EprofPass, St)
+		  end;
+	      false ->
+		  Run0
 	  end,
     case fold_comp(Passes, Run, St1) of
 	{ok,St2} -> comp_ret_ok(St2);
@@ -320,17 +330,26 @@ fold_comp([{Name,Pass}|Ps], Run, St0) ->
 fold_comp([], _Run, St) -> {ok,St}.
 
 run_tc({Name,Fun}, St) ->
-    Before0 = statistics(runtime),
+    T1 = erlang:monotonic_time(),
     Val = (catch Fun(St)),
-    After0 = statistics(runtime),
-    {Before_c, _} = Before0,
-    {After_c, _} = After0,
+    T2 = erlang:monotonic_time(),
+    Elapsed = erlang:convert_time_unit(T2 - T1, native, milli_seconds),
     Mem0 = erts_debug:flat_size(Val)*erlang:system_info(wordsize),
     Mem = lists:flatten(io_lib:format("~.1f kB", [Mem0/1024])),
-    io:format(" ~-30s: ~10.2f s ~12s\n",
-	      [Name,(After_c-Before_c) / 1000,Mem]),
+    io:format(" ~-30s: ~10.3f s ~12s\n",
+	      [Name,Elapsed/1000,Mem]),
     Val.
 
+run_eprof({Name,Fun}, Name, St) ->
+    io:format("~p: Running eprof\n", [Name]),
+    c:appcall(tools, eprof, start_profiling, [[self()]]),
+    Val = (catch Fun(St)),
+    c:appcall(tools, eprof, stop_profiling, []),
+    c:appcall(tools, eprof, analyze, []),
+    Val;
+run_eprof({_,Fun}, _, St) ->
+    catch Fun(St).
+
 comp_ret_ok(#compile{code=Code,warnings=Warn0,module=Mod,options=Opts}=St) ->
     case werror(St) of
         true ->
@@ -431,11 +450,6 @@ pass(from_core) ->
     {".core",[?pass(parse_core)|core_passes()]};
 pass(from_asm) ->
     {".S",[?pass(beam_consult_asm)|asm_passes()]};
-pass(asm) ->
-    %% TODO: remove 'asm' in 18.0
-    io:format("compile:file/2 option 'asm' has been deprecated and will be~n"
-	      "removed in the 18.0 release. Use 'from_asm' instead.~n"),
-    pass(from_asm);
 pass(from_beam) ->
     {".beam",[?pass(read_beam_file)|binary_passes()]};
 pass(_) -> none.
@@ -611,7 +625,7 @@ standard_passes() ->
      {iff,'to_exp',{done,"E"}},
 
      %% Conversion to Core Erlang.
-     ?pass(core_module),
+     {pass,v3_core},
      {iff,'dcore',{listing,"core"}},
      {iff,'to_core0',{done,"core"}}
      | core_passes()].
@@ -623,7 +637,7 @@ core_passes() ->
       [{unless,no_copt,
        [{core_old_inliner,fun test_old_inliner/1,fun core_old_inliner/1},
 	{iff,doldinline,{listing,"oldinline"}},
-	?pass(core_fold_module),
+	{pass,sys_core_fold},
 	{iff,dcorefold,{listing,"corefold"}},
 	{core_inline_module,fun test_core_inliner/1,fun core_inline_module/1},
 	{iff,dinline,{listing,"inline"}},
@@ -636,14 +650,14 @@ core_passes() ->
 
 kernel_passes() ->
     %% Destructive setelement/3 optimization and core lint.
-    [?pass(core_dsetel_module),
+    [{pass,sys_core_dsetel},
      {iff,dsetel,{listing,"dsetel"}},
 
      {iff,clint,?pass(core_lint_module)},
      {iff,core,?pass(save_core_code)},
 
      %% Kernel Erlang and code generation.
-     ?pass(kernel_module),
+     {pass,v3_kernel},
      {iff,dkern,{listing,"kernel"}},
      {iff,'to_kernel',{done,"kernel"}},
      {pass,v3_life},
@@ -906,28 +920,35 @@ transform_module(#compile{options=Opt,code=Code0}=St0) ->
 
 foldl_transform(St, [T|Ts]) ->
     Name = "transform " ++ atom_to_list(T),
-    Fun = fun(S) -> T:parse_transform(S#compile.code, S#compile.options) end,
-    Run = case member(time, St#compile.options) of
-	      true  -> fun run_tc/2;
-	      false -> fun({_Name,F}, S) -> catch F(S) end
-	  end,
-    case Run({Name, Fun}, St) of
-	{error,Es,Ws} ->
-	    {error,St#compile{warnings=St#compile.warnings ++ Ws,
-			      errors=St#compile.errors ++ Es}};
-	{'EXIT',{undef,_}} ->
-	    Es = [{St#compile.ifile,[{none,compile,
-				      {undef_parse_transform,T}}]}],
-	    {error,St#compile{errors=St#compile.errors ++ Es}};
-	{'EXIT',R} ->
-	    Es = [{St#compile.ifile,[{none,compile,{parse_transform,T,R}}]}],
-	    {error,St#compile{errors=St#compile.errors ++ Es}};
-	{warning, Forms, Ws} ->
-	    foldl_transform(
-	      St#compile{code=Forms,
-			 warnings=St#compile.warnings ++ Ws}, Ts);
-	Forms ->
-	    foldl_transform(St#compile{code=Forms}, Ts)
+    case code:ensure_loaded(T) =:= {module,T} andalso
+                erlang:function_exported(T, parse_transform, 2) of
+        true ->
+            Fun = fun(S) ->
+                         T:parse_transform(S#compile.code, S#compile.options)
+                  end,
+            Run = case member(time, St#compile.options) of
+                      true  -> fun run_tc/2;
+                      false -> fun({_Name,F}, S) -> catch F(S) end
+                  end,
+            case Run({Name, Fun}, St) of
+                {error,Es,Ws} ->
+                    {error,St#compile{warnings=St#compile.warnings ++ Ws,
+                                      errors=St#compile.errors ++ Es}};
+                {'EXIT',R} ->
+                    Es = [{St#compile.ifile,[{none,compile,
+                                              {parse_transform,T,R}}]}],
+                    {error,St#compile{errors=St#compile.errors ++ Es}};
+                {warning, Forms, Ws} ->
+                    foldl_transform(
+                      St#compile{code=Forms,
+                                 warnings=St#compile.warnings ++ Ws}, Ts);
+                Forms ->
+                    foldl_transform(St#compile{code=Forms}, Ts)
+            end;
+        false ->
+            Es = [{St#compile.ifile,[{none,compile,
+                                      {undef_parse_transform,T}}]}],
+            {error,St#compile{errors=St#compile.errors ++ Es}}
     end;
 foldl_transform(St, []) -> {ok,St}.
 
@@ -1181,14 +1202,6 @@ expand_module(#compile{code=Code,options=Opts0}=St0) ->
     Opts = expand_opts(Opts1),
     {ok,St0#compile{module=Mod,options=Opts,code={Mod,Exp,Forms}}}.
 
-core_module(#compile{code=Code0,options=Opts}=St) ->
-    {ok,Code,Ws} = v3_core:module(Code0, Opts),
-    {ok,St#compile{code=Code,warnings=St#compile.warnings ++ Ws}}.
-
-core_fold_module(#compile{code=Code0,options=Opts,warnings=Warns}=St) ->
-    {ok,Code,Ws} = sys_core_fold:module(Code0, Opts),
-    {ok,St#compile{code=Code,warnings=Warns ++ Ws}}.
-
 core_fold_module_after_inlining(#compile{code=Code0,options=Opts}=St) ->
     %% Inlining may produce code that generates spurious warnings.
     %% Ignore all warnings.
@@ -1224,14 +1237,6 @@ core_inline_module(#compile{code=Code0,options=Opts}=St) ->
     Code = cerl_inline:core_transform(Code0, Opts),
     {ok,St#compile{code=Code}}.
 
-core_dsetel_module(#compile{code=Code0,options=Opts}=St) ->
-    {ok,Code} = sys_core_dsetel:module(Code0, Opts),
-    {ok,St#compile{code=Code}}.
-
-kernel_module(#compile{code=Code0,options=Opts}=St) ->
-    {ok,Code,Ws} = v3_kernel:module(Code0, Opts),
-    {ok,St#compile{code=Code,warnings=St#compile.warnings ++ Ws}}.
-
 save_abstract_code(#compile{ifile=File}=St) ->
     case abstract_code(St) of
 	{ok,Code} ->
@@ -1240,7 +1245,8 @@ save_abstract_code(#compile{ifile=File}=St) ->
 	    {error,St#compile{errors=St#compile.errors ++ [{File,Es}]}}
     end.
 
-abstract_code(#compile{code=Code,options=Opts,ofile=OFile}) ->
+abstract_code(#compile{code=Code0,options=Opts,ofile=OFile}) ->
+    Code = erl_parse:anno_to_term(Code0),
     Abstr = erlang:term_to_binary({raw_abstract_v1,Code}, [compressed]),
     case member(encrypt_debug_info, Opts) of
 	true ->
@@ -1300,8 +1306,9 @@ encrypt({des3_cbc=Type,Key,IVec,BlockSize}, Bin0) ->
     list_to_binary([0,length(TypeString),TypeString,Bin]).
 
 random_bytes(N) ->
-    {A,B,C} = now(),
-    _ = random:seed(A, B, C),
+    _ = random:seed(erlang:time_offset(),
+		    erlang:monotonic_time(),
+		    erlang:unique_integer()),
     random_bytes_1(N, []).
 
 random_bytes_1(0, Acc) -> Acc;
diff --git a/lib/compiler/src/compiler.app.src b/lib/compiler/src/compiler.app.src
index 8f68915f8e..0bfd998301 100644
--- a/lib/compiler/src/compiler.app.src
+++ b/lib/compiler/src/compiler.app.src
@@ -45,6 +45,7 @@
 	     cerl,
 	     cerl_clauses,
 	     cerl_inline,
+             cerl_sets,
 	     cerl_trees,
 	     compile,
 	     core_scan,
@@ -56,6 +57,7 @@
 	     rec_env,
 	     sys_core_dsetel,
 	     sys_core_fold,
+	     sys_core_fold_lists,
 	     sys_core_inline,
 	     sys_pre_attributes,
 	     sys_pre_expand,
@@ -68,5 +70,5 @@
   {registered, []},
   {applications, [kernel, stdlib]},
   {env, []},
-  {runtime_dependencies, ["stdlib-2.0","kernel-3.0","hipe-3.10.3","erts-6.0",
-			  "crypto-3.3"]}]}.
+  {runtime_dependencies, ["stdlib-2.5","kernel-4.0","hipe-3.12","erts-7.0",
+			  "crypto-3.6"]}]}.
diff --git a/lib/compiler/src/core_lib.erl b/lib/compiler/src/core_lib.erl
index 0d95971f91..66319dbd36 100644
--- a/lib/compiler/src/core_lib.erl
+++ b/lib/compiler/src/core_lib.erl
@@ -20,6 +20,12 @@
 
 -module(core_lib).
 
+-deprecated({get_anno,1,next_major_release}).
+-deprecated({set_anno,2,next_major_release}).
+-deprecated({is_literal,1,next_major_release}).
+-deprecated({is_literal_list,1,next_major_release}).
+-deprecated({literal_value,1,next_major_release}).
+
 -export([get_anno/1,set_anno/2]).
 -export([is_literal/1,is_literal_list/1]).
 -export([literal_value/1]).
@@ -33,59 +39,27 @@
 %%
 -spec get_anno(cerl:cerl()) -> term().
 
-get_anno(C) -> element(2, C).
+get_anno(C) -> cerl:get_ann(C).
 
 -spec set_anno(cerl:cerl(), term()) -> cerl:cerl().
 
-set_anno(C, A) -> setelement(2, C, A).
+set_anno(C, A) -> cerl:set_ann(C, A).
 
 -spec is_literal(cerl:cerl()) -> boolean().
 
-is_literal(#c_literal{}) -> true;
-is_literal(#c_cons{hd=H,tl=T}) ->
-    is_literal(H) andalso is_literal(T);
-is_literal(#c_tuple{es=Es}) -> is_literal_list(Es);
-is_literal(#c_binary{segments=Es}) -> is_lit_bin(Es);
-is_literal(_) -> false.
+is_literal(Cerl) ->
+    cerl:is_literal(cerl:fold_literal(Cerl)).
 
 -spec is_literal_list([cerl:cerl()]) -> boolean().
 
 is_literal_list(Es) -> lists:all(fun is_literal/1, Es).
 
-is_lit_bin(Es) ->
-    lists:all(fun (#c_bitstr{val=E,size=S}) ->
-		      is_literal(E) andalso is_literal(S)
-	      end, Es).
-
 %% Return the value of LitExpr.
 -spec literal_value(cerl:c_literal() | cerl:c_binary() |
 		    cerl:c_map() | cerl:c_cons() | cerl:c_tuple()) -> term().
 
-literal_value(#c_literal{val=V}) -> V;
-literal_value(#c_binary{segments=Es}) ->
-    list_to_binary([literal_value_bin(Bit) || Bit <- Es]);
-literal_value(#c_cons{hd=H,tl=T}) ->
-    [literal_value(H)|literal_value(T)];
-literal_value(#c_tuple{es=Es}) ->
-    list_to_tuple(literal_value_list(Es));
-literal_value(#c_map{arg=Cm,es=Cmps}) ->
-    M = literal_value(Cm),
-    lists:foldl(fun(#c_map_pair{ key=Ck, val=Cv },Mi) ->
-		K = literal_value(Ck),
-		V = literal_value(Cv),
-		maps:put(K,V,Mi)
-	end, M, Cmps).
-
-literal_value_list(Vals) -> [literal_value(V) || V <- Vals].
-
-literal_value_bin(#c_bitstr{val=Val,size=Sz,unit=U,type=T,flags=Fs}) ->
-    %% We will only handle literals constructed by make_literal/1.
-    %% Could be made more general in the future if the need arises.
-    8 = literal_value(Sz),
-    1 = literal_value(U),
-    integer = literal_value(T),
-    [unsigned,big] = literal_value(Fs),
-    literal_value(Val).
+literal_value(Cerl) ->
+    cerl:concrete(cerl:fold_literal(Cerl)).
 
 %% Make a suitable values structure, expr or values, depending on Expr.
 -spec make_values([cerl:cerl()] | cerl:cerl()) -> cerl:cerl().
@@ -236,10 +210,15 @@ vu_pat_seg_list(V, Ss, St) ->
 			end
 		end, St, Ss).
 
-vu_map_pairs(V, [#c_map_pair{val=Pat}|T], St0) ->
-    case vu_pattern(V, Pat, St0) of
-	{true,_}=St -> St;
-	St -> vu_map_pairs(V, T, St)
+vu_map_pairs(V, [#c_map_pair{key=Key,val=Pat}|T], St0) ->
+    case vu_expr(V, Key) of
+	true ->
+	    {true,false};
+	false ->
+	    case vu_pattern(V, Pat, St0) of
+		{true,_}=St -> St;
+		St -> vu_map_pairs(V, T, St)
+	    end
     end;
 vu_map_pairs(_, [], St) -> St.
 
diff --git a/lib/compiler/src/core_lint.erl b/lib/compiler/src/core_lint.erl
index 25df33a287..f62b2bb0ba 100644
--- a/lib/compiler/src/core_lint.erl
+++ b/lib/compiler/src/core_lint.erl
@@ -33,9 +33,6 @@
 %% Values only as multiple values/variables/patterns.
 %% Return same number of values as requested
 %% Correct number of arguments
-%%
-%% Checks to add:
-%%
 %% Consistency of values/variables
 %% Consistency of function return values/calls.
 %%
@@ -176,7 +173,7 @@ check_exports(Es, St) ->
     end.
 
 check_attrs(As, St) ->
-    case all(fun ({#c_literal{},V}) -> core_lib:is_literal(V);
+    case all(fun ({#c_literal{},#c_literal{}}) -> true;
 		 (_) -> false
 	     end, As) of
 	true -> St;
@@ -211,7 +208,7 @@ functions(Fs, Def, St0) ->
 function({#c_var{name={_,_}},B}, Def, St) ->
     %% Body must be a fun!
     case B of
-	#c_fun{} -> expr(B, Def, any, St);
+	#c_fun{} -> expr(B, Def, 1, St);
 	_ -> add_error({illegal_expr,St#lint.func}, St)
     end.
 
@@ -247,40 +244,42 @@ gbody(E, Def, Rt, St0) ->
 	false -> St1
     end.
 
-gexpr(#c_var{name=N}, Def, _Rt, St) when is_atom(N); is_integer(N) ->
-    expr_var(N, Def, St);
-gexpr(#c_literal{}, _Def, _Rt, St) -> St;
-gexpr(#c_cons{hd=H,tl=T}, Def, _Rt, St) ->
-    gexpr_list([H,T], Def, St);
-gexpr(#c_tuple{es=Es}, Def, _Rt, St) ->
-    gexpr_list(Es, Def, St);
-gexpr(#c_map{es=Es}, Def, _Rt, St) ->
-    gexpr_list(Es, Def, St);
-gexpr(#c_map_pair{key=K,val=V}, Def, _Rt, St) ->
-    gexpr_list([K,V], Def, St);
-gexpr(#c_binary{segments=Ss}, Def, _Rt, St) ->
-    gbitstr_list(Ss, Def, St);
+gexpr(#c_var{name=N}, Def, Rt, St) when is_atom(N); is_integer(N) ->
+    return_match(Rt, 1, expr_var(N, Def, St));
+gexpr(#c_literal{}, _Def, Rt, St) ->
+    return_match(Rt, 1, St);
+gexpr(#c_cons{hd=H,tl=T}, Def, Rt, St) ->
+    return_match(Rt, 1, gexpr_list([H,T], Def, St));
+gexpr(#c_tuple{es=Es}, Def, Rt, St) ->
+    return_match(Rt, 1, gexpr_list(Es, Def, St));
+gexpr(#c_map{es=Es}, Def, Rt, St) ->
+    return_match(Rt, 1, gexpr_list(Es, Def, St));
+gexpr(#c_map_pair{key=K,val=V}, Def, Rt, St) ->
+    return_match(Rt, 1, gexpr_list([K,V], Def, St));
+gexpr(#c_binary{segments=Ss}, Def, Rt, St) ->
+    return_match(Rt, 1, gbitstr_list(Ss, Def, St));
 gexpr(#c_seq{arg=Arg,body=B}, Def, Rt, St0) ->
-    St1 = gexpr(Arg, Def, any, St0),		%Ignore values
-    gbody(B, Def, Rt, St1);
+    St1 = gexpr(Arg, Def, 1, St0),
+    return_match(Rt, 1, gbody(B, Def, Rt, St1));
 gexpr(#c_let{vars=Vs,arg=Arg,body=B}, Def, Rt, St0) ->
     St1 = gbody(Arg, Def, let_varcount(Vs), St0), %This is a guard body
     {Lvs,St2} = variable_list(Vs, St1),
     gbody(B, union(Lvs, Def), Rt, St2);
 gexpr(#c_call{module=#c_literal{val=erlang},name=#c_literal{val=is_record},
               args=[Arg,#c_literal{val=Tag},#c_literal{val=Size}]},
-      Def, 1, St) when is_atom(Tag), is_integer(Size) ->
-    gexpr(Arg, Def, 1, St);
+      Def, Rt, St) when is_atom(Tag), is_integer(Size) ->
+    return_match(Rt, 1, gexpr(Arg, Def, 1, St));
 gexpr(#c_call{module=#c_literal{val=erlang},name=#c_literal{val=is_record}},
-      _Def, 1, St) ->
-    add_error({illegal_guard,St#lint.func}, St);
+      _Def, Rt, St) ->
+    return_match(Rt, 1, add_error({illegal_guard,St#lint.func}, St));
 gexpr(#c_call{module=#c_literal{val=erlang},name=#c_literal{val=Name},args=As},
-      Def, 1, St) when is_atom(Name) ->
+      Def, Rt, St0) when is_atom(Name) ->
+    St1 = return_match(Rt, 1, St0),
     case is_guard_bif(Name, length(As)) of
         true ->
-            gexpr_list(As, Def, St);
+            gexpr_list(As, Def, St1);
         false ->
-            add_error({illegal_guard,St#lint.func}, St)
+            add_error({illegal_guard,St1#lint.func}, St1)
     end;
 gexpr(#c_primop{name=#c_literal{val=A},args=As}, Def, _Rt, St0) when is_atom(A) ->
     gexpr_list(As, Def, St0);
@@ -319,23 +318,25 @@ is_guard_bif(Name, Arity) ->
 
 %% expr(Expr, Defined, RetCount, State) -> State.
 
-expr(#c_var{name={_,_}=FA}, Def, _Rt, St) ->
-    expr_fname(FA, Def, St);
-expr(#c_var{name=N}, Def, _Rt, St) -> expr_var(N, Def, St);
-expr(#c_literal{}, _Def, _Rt, St) -> St;
-expr(#c_cons{hd=H,tl=T}, Def, _Rt, St) ->
-    expr_list([H,T], Def, St);
-expr(#c_tuple{es=Es}, Def, _Rt, St) ->
-    expr_list(Es, Def, St);
-expr(#c_map{es=Es}, Def, _Rt, St) ->
-    expr_list(Es, Def, St);
-expr(#c_map_pair{key=K,val=V},Def,_Rt,St) ->
-    expr_list([K,V],Def,St);
-expr(#c_binary{segments=Ss}, Def, _Rt, St) ->
-    bitstr_list(Ss, Def, St);
+expr(#c_var{name={_,_}=FA}, Def, Rt, St) ->
+    return_match(Rt, 1, expr_fname(FA, Def, St));
+expr(#c_var{name=N}, Def, Rt, St) ->
+    return_match(Rt, 1, expr_var(N, Def, St));
+expr(#c_literal{}, _Def, Rt, St) ->
+    return_match(Rt, 1, St);
+expr(#c_cons{hd=H,tl=T}, Def, Rt, St) ->
+    return_match(Rt, 1, expr_list([H,T], Def, St));
+expr(#c_tuple{es=Es}, Def, Rt, St) ->
+    return_match(Rt, 1, expr_list(Es, Def, St));
+expr(#c_map{es=Es}, Def, Rt, St) ->
+    return_match(Rt, 1, expr_list(Es, Def, St));
+expr(#c_map_pair{key=K,val=V}, Def, Rt, St) ->
+    return_match(Rt, 1, expr_list([K,V], Def, St));
+expr(#c_binary{segments=Ss}, Def, Rt, St) ->
+    return_match(Rt, 1, bitstr_list(Ss, Def, St));
 expr(#c_fun{vars=Vs,body=B}, Def, Rt, St0) ->
     {Vvs,St1} = variable_list(Vs, St0),
-    return_match(Rt, 1, body(B, union(Vvs, Def), any, St1));
+    return_match(Rt, 1, body(B, union(Vvs, Def), 1, St1));
 expr(#c_seq{arg=Arg,body=B}, Def, Rt, St0) ->
     St1 = expr(Arg, Def, 1, St0),
     body(B, Def, Rt, St1);
@@ -361,15 +362,26 @@ expr(#c_receive{clauses=Cs,timeout=T,action=A}, Def, Rt, St0) ->
     St1 = expr(T, Def, 1, St0),
     St2 = body(A, Def, Rt, St1),
     clauses(Cs, Def, 1, Rt, St2);
-expr(#c_apply{op=Op,args=As}, Def, _Rt, St0) ->
+expr(#c_apply{op=Op,args=As}, Def, Rt, St0) ->
     St1 = apply_op(Op, Def, length(As), St0),
-    expr_list(As, Def, St1);
+    return_match(Rt, 1, expr_list(As, Def, St1));
+expr(#c_call{module=#c_literal{val=erlang},name=#c_literal{val=Name},args=As},
+     Def, Rt, St0) when is_atom(Name) ->
+    St1 = expr_list(As, Def, St0),
+    case erl_bifs:is_exit_bif(erlang, Name, length(As)) of
+        true -> St1;
+        false -> return_match(Rt, 1, St1)
+    end;
 expr(#c_call{module=M,name=N,args=As}, Def, _Rt, St0) ->
     St1 = expr(M, Def, 1, St0),
     St2 = expr(N, Def, 1, St1),
     expr_list(As, Def, St2);
-expr(#c_primop{name=#c_literal{val=A},args=As}, Def, _Rt, St0) when is_atom(A) ->
-    expr_list(As, Def, St0);
+expr(#c_primop{name=#c_literal{val=A},args=As}, Def, Rt, St0) when is_atom(A) ->
+    St1 = expr_list(As, Def, St0),
+    case A of
+        match_fail -> St1;
+        _ -> return_match(Rt, 1, St1)
+    end;
 expr(#c_catch{body=B}, Def, Rt, St) ->
     return_match(Rt, 1, body(B, Def, 1, St));
 expr(#c_try{arg=A,vars=Vs,body=B,evars=Evs,handler=H}, Def, Rt, St0) ->
diff --git a/lib/compiler/src/core_parse.hrl b/lib/compiler/src/core_parse.hrl
index 4a00535360..7fd4a82e4e 100644
--- a/lib/compiler/src/core_parse.hrl
+++ b/lib/compiler/src/core_parse.hrl
@@ -72,7 +72,8 @@
 
 -record(c_map, {anno=[],
 		arg=#c_literal{val=#{}} :: cerl:c_var() | cerl:c_literal(),
-		es :: [cerl:c_map_pair()]}).
+		es :: [cerl:c_map_pair()],
+		is_pat=false :: boolean()}).
 
 -record(c_map_pair, {anno=[],
 	             op :: #c_literal{val::'assoc'} | #c_literal{val::'exact'},
diff --git a/lib/compiler/src/core_parse.yrl b/lib/compiler/src/core_parse.yrl
index a66ad4235f..eeb9f5dba7 100644
--- a/lib/compiler/src/core_parse.yrl
+++ b/lib/compiler/src/core_parse.yrl
@@ -58,7 +58,8 @@ Terminals
 
 %% Separators
 
-'(' ')' '{' '}' '[' ']' '|' ',' '->' '=' '/' '<' '>' ':' '-|' '#' '~' '::'
+'(' ')' '{' '}' '[' ']' '|' ',' '->' '=' '/' '<' '>' ':' '-|' '#'
+'~' '=>' ':='
 
 %% Keywords (atoms are assumed to always be single-quoted).
 
@@ -123,7 +124,7 @@ function_definition ->
 	{'$1','$3'}.
 
 anno_fun -> '(' fun_expr '-|' annotation ')' :
-	core_lib:set_anno('$2', '$4').
+	cerl:set_ann('$2', '$4').
 anno_fun -> fun_expr : '$1'.
 
 %% Constant terms for annotations and attributes.
@@ -162,7 +163,7 @@ tail_constant -> ',' constant tail_constant : ['$2'|'$3'].
 %%  ( ( V -| <anno> ) = ( {a} -| <anno> ) -| <anno> )
 
 anno_pattern -> '(' other_pattern '-|' annotation ')' :
-	core_lib:set_anno('$2', '$4').
+	cerl:set_ann('$2', '$4').
 anno_pattern -> other_pattern : '$1'.
 anno_pattern -> anno_variable : '$1'.
 
@@ -182,23 +183,24 @@ atomic_pattern -> atomic_literal : '$1'.
 tuple_pattern -> '{' '}' : c_tuple([]).
 tuple_pattern -> '{' anno_patterns '}' : c_tuple('$2').
 
-map_pattern -> '~' '{' '}' '~' : #c_map{es=[]}.
+map_pattern -> '~' '{' '}' '~' : c_map_pattern([]).
 map_pattern -> '~' '{' map_pair_patterns '}' '~' :
-		   #c_map{es=lists:sort('$3')}.
+		   c_map_pattern(lists:sort('$3')).
 
 map_pair_patterns -> map_pair_pattern : ['$1'].
 map_pair_patterns -> map_pair_pattern ',' map_pair_patterns : ['$1' | '$3'].
 
-map_pair_pattern -> '~' '<' anno_pattern ',' anno_pattern '>' :
-			#c_map_pair{op=#c_literal{val=exact},key='$3',val='$5'}.
+map_pair_pattern -> anno_expression ':=' anno_pattern :
+			#c_map_pair{op=#c_literal{val=exact},
+				    key='$1',val='$3'}.
 
 cons_pattern -> '[' anno_pattern tail_pattern :
-		    #c_cons{hd='$2',tl='$3'}.
+		    c_cons('$2', '$3').
 
 tail_pattern -> ']' : #c_literal{val=[]}.
 tail_pattern -> '|' anno_pattern ']' : '$2'.
 tail_pattern -> ',' anno_pattern tail_pattern :
-		    #c_cons{hd='$2',tl='$3'}.
+		    c_cons('$2', '$3').
 
 binary_pattern -> '#' '{' '}' '#' : #c_binary{segments=[]}.
 binary_pattern -> '#' '{' segment_patterns '}' '#' : #c_binary{segments='$3'}.
@@ -206,7 +208,7 @@ binary_pattern -> '#' '{' segment_patterns '}' '#' : #c_binary{segments='$3'}.
 segment_patterns -> segment_pattern ',' segment_patterns : ['$1' | '$3'].
 segment_patterns -> segment_pattern : ['$1'].
 
-segment_pattern -> '#' '<' anno_pattern '>' '(' anno_patterns ')':
+segment_pattern -> '#' '<' anno_pattern '>' '(' anno_expressions ')':
 	case '$6' of
 	    [S,U,T,Fs] ->
 		#c_bitstr{val='$3',size=S,unit=U,type=T,flags=Fs};
@@ -222,7 +224,7 @@ anno_variables -> anno_variable : ['$1'].
 
 anno_variable -> variable : '$1'.
 anno_variable -> '(' variable '-|' annotation ')' :
-	core_lib:set_anno('$2', '$4').
+	cerl:set_ann('$2', '$4').
 
 %% Expressions
 %%  Must split expressions into two levels as nested value expressions
@@ -230,7 +232,7 @@ anno_variable -> '(' variable '-|' annotation ')' :
 
 anno_expression -> expression : '$1'.
 anno_expression -> '(' expression '-|' annotation ')' :
-	core_lib:set_anno('$2', '$4').
+	cerl:set_ann('$2', '$4').
 
 anno_expressions -> anno_expression ',' anno_expressions : ['$1' | '$3'].
 anno_expressions -> anno_expression : ['$1'].
@@ -279,15 +281,15 @@ cons_literal -> '[' literal tail_literal : c_cons('$2', '$3').
 
 tail_literal -> ']' : #c_literal{val=[]}.
 tail_literal -> '|' literal ']' : '$2'.
-tail_literal -> ',' literal tail_literal : #c_cons{hd='$2',tl='$3'}.
+tail_literal -> ',' literal tail_literal : c_cons('$2', '$3').
 
 tuple -> '{' '}' : c_tuple([]).
 tuple -> '{' anno_expressions '}' : c_tuple('$2').
 
-map_expr -> '~' '{' '}' '~' : #c_map{es=[]}.
-map_expr -> '~' '{' map_pairs '}' '~' : #c_map{es='$3'}.
-map_expr -> '~' '{' map_pairs '|' variable '}' '~' : #c_map{arg='$5',es='$3'}.
-map_expr -> '~' '{' map_pairs '|' map_expr '}' '~' : #c_map{arg='$5',es='$3'}.
+map_expr -> '~' '{' '}' '~' : c_map([]).
+map_expr -> '~' '{' map_pairs '}' '~' : c_map('$3').
+map_expr -> '~' '{' map_pairs '|' variable '}' '~' : ann_c_map([], '$5', '$3').
+map_expr -> '~' '{' map_pairs '|' map_expr '}' '~' : ann_c_map([], '$5', '$3').
 
 map_pairs -> map_pair : ['$1'].
 map_pairs -> map_pair ',' map_pairs : ['$1' | '$3'].
@@ -295,10 +297,10 @@ map_pairs -> map_pair ',' map_pairs : ['$1' | '$3'].
 map_pair -> map_pair_assoc : '$1'.
 map_pair -> map_pair_exact : '$1'.
 
-map_pair_assoc -> '::' '<' anno_expression ',' anno_expression'>' :
-		#c_map_pair{op=#c_literal{val=assoc},key='$3',val='$5'}.
-map_pair_exact -> '~' '<' anno_expression ',' anno_expression'>' :
-		#c_map_pair{op=#c_literal{val=exact},key='$3',val='$5'}.
+map_pair_assoc -> anno_expression '=>' anno_expression :
+		#c_map_pair{op=#c_literal{val=assoc},key='$1',val='$3'}.
+map_pair_exact -> anno_expression ':=' anno_expression :
+		#c_map_pair{op=#c_literal{val=exact},key='$1',val='$3'}.
 
 cons -> '[' anno_expression tail : c_cons('$2', '$3').
 
@@ -307,7 +309,7 @@ tail -> '|' anno_expression ']' : '$2'.
 tail -> ',' anno_expression tail : c_cons('$2', '$3').
 
 binary -> '#' '{' '}' '#' : #c_literal{val = <<>>}.
-binary -> '#' '{' segments '}' '#' : #c_binary{segments='$3'}.
+binary -> '#' '{' segments '}' '#' : make_binary('$3').
 
 segments -> segment ',' segments : ['$1' | '$3'].
 segments -> segment : ['$1'].
@@ -326,7 +328,7 @@ function_name -> atom '/' integer :
 
 anno_function_name -> function_name : '$1'.
 anno_function_name -> '(' function_name '-|' annotation ')' :
-	core_lib:set_anno('$2', '$4').
+	cerl:set_ann('$2', '$4').
 
 let_vars -> anno_variable : ['$1'].
 let_vars -> '<' '>' : [].
@@ -354,7 +356,7 @@ anno_clauses -> anno_clause : ['$1'].
 
 anno_clause -> clause : '$1'.
 anno_clause -> '(' clause '-|' annotation ')' :
-	core_lib:set_anno('$2', '$4').
+	cerl:set_ann('$2', '$4').
 
 clause -> clause_pattern 'when' anno_expression '->' anno_expression :
 	#c_clause{pats='$1',guard='$3',body='$5'}.
@@ -410,9 +412,55 @@ Erlang code.
 
 -include("core_parse.hrl").
 
--import(cerl, [c_cons/2,c_tuple/1]).
+-import(cerl, [ann_c_map/3,c_cons/2,c_map/1,c_map_pattern/1,c_tuple/1]).
 
 tok_val(T) -> element(3, T).
 tok_line(T) -> element(2, T).
 
+%% make_binary([#c_bitstr{}]) -> #c_binary{} | #c_literal{}
+%%  Create either #c_binary{} or #c_literal{} from the binary segments.
+%%  In certain contexts, such as keys for maps, only literals and
+%%  variables are allowed, so we must not create a #c_binary{}
+%%  record in those situation.
+%%
+%%  To keep this function simple, we use a crude heuristic. We will
+%%  assume that Core Erlang has been produced by core_pp. If the
+%%  segments *could* have been output from a literal binary by
+%%  core_pp, we will create a #c_literal{}. Otherwise we will create a
+%%  #c_binary{} record.
+
+make_binary(Segs) ->
+    try make_lit_bin(<<>>, Segs) of
+	Bs when is_bitstring(Bs) ->
+	    #c_literal{val=Bs}
+    catch
+	throw:impossible ->
+	    #c_binary{segments=Segs}
+    end.
+
+make_lit_bin(Acc, [#c_bitstr{val=I0,size=Sz0,unit=U0,type=Type0,flags=F0}|T]) ->
+    I = get_lit_val(I0),
+    Sz = get_lit_val(Sz0),
+    U = get_lit_val(U0),
+    Type = get_lit_val(Type0),
+    F = get_lit_val(F0),
+    if
+	is_integer(I), U =:= 1, Type =:= integer, F =:= [unsigned,big] ->
+	    ok;
+	true ->
+	    throw(impossible)
+    end,
+    if
+	Sz =< 8, T =:= [] ->
+	    <<Acc/binary,I:Sz>>;
+	Sz =:= 8 ->
+	    make_lit_bin(<<Acc/binary,I:8>>, T);
+	true ->
+	    throw(impossible)
+    end;
+make_lit_bin(Acc, []) -> Acc.
+
+get_lit_val(#c_literal{val=Val}) -> Val;
+get_lit_val(_) -> throw(impossible).
+
 %% vim: syntax=erlang
diff --git a/lib/compiler/src/core_pp.erl b/lib/compiler/src/core_pp.erl
index 83412ecdd7..9cfca88e8c 100644
--- a/lib/compiler/src/core_pp.erl
+++ b/lib/compiler/src/core_pp.erl
@@ -45,7 +45,7 @@ format(Node) ->
     format(Node, #ctxt{}).
 
 maybe_anno(Node, Fun, Ctxt) ->
-    As = core_lib:get_anno(Node),
+    As = cerl:get_ann(Node),
     case get_line(As) of
 	none ->
 	    maybe_anno(Node, Fun, Ctxt, As);
@@ -125,8 +125,8 @@ format_1(#c_literal{anno=A,val=M},Ctxt) when is_map(M) ->
 	_ -> assoc
     end,
     Cpairs = [#c_map_pair{op=#c_literal{val=Op},
-			  key=#c_literal{val=V},
-			  val=#c_literal{val=K}} || {K,V} <- Pairs],
+			  key=#c_literal{val=K},
+			  val=#c_literal{val=V}} || {K,V} <- Pairs],
 	format_1(#c_map{anno=A,arg=#c_literal{val=#{}},es=Cpairs},Ctxt);
 format_1(#c_var{name={I,A}}, _) ->
     [core_atom(I),$/,integer_to_list(A)];
@@ -183,15 +183,9 @@ format_1(#c_map{arg=Var,es=Es}, Ctxt) ->
      "}~"
     ];
 format_1(#c_map_pair{op=#c_literal{val=assoc},key=K,val=V}, Ctxt) ->
-    ["::<",
-     format_hseq([K,V], ",", add_indent(Ctxt, 1), fun format/2),
-     ">"
-    ];
+    format_map_pair("=>", K, V, Ctxt);
 format_1(#c_map_pair{op=#c_literal{val=exact},key=K,val=V}, Ctxt) ->
-    ["~<",
-     format_hseq([K,V], ",", add_indent(Ctxt, 1), fun format/2),
-     ">"
-    ];
+    format_map_pair(":=", K, V, Ctxt);
 format_1(#c_cons{hd=H,tl=T}, Ctxt) ->
     Txt = ["["|format(H, add_indent(Ctxt, 1))],
     [Txt|format_list_tail(T, add_indent(Ctxt, width(Txt, Ctxt)))];
@@ -201,7 +195,7 @@ format_1(#c_alias{var=V,pat=P}, Ctxt) ->
     Txt = [format(V, Ctxt)|" = "],
     [Txt|format(P, add_indent(Ctxt, width(Txt, Ctxt)))];
 format_1(#c_let{vars=Vs0,arg=A,body=B}, Ctxt) ->
-    Vs = [core_lib:set_anno(V, []) || V <- Vs0],
+    Vs = [cerl:set_ann(V, []) || V <- Vs0],
     case is_simple_term(A) of
 	false ->
 	    Ctxt1 = add_indent(Ctxt, Ctxt#ctxt.body_indent),
@@ -219,7 +213,7 @@ format_1(#c_let{vars=Vs0,arg=A,body=B}, Ctxt) ->
 	    ["let ",
 	     format_values(Vs, add_indent(Ctxt, 4)),
 	     " = ",
-	     format(core_lib:set_anno(A, []), Ctxt1),
+	     format(cerl:set_ann(A, []), Ctxt1),
 	     nl_indent(Ctxt),
 	     "in  "
 	     | format(B, add_indent(Ctxt, 4))
@@ -448,6 +442,12 @@ format_list_tail(#c_cons{anno=[],hd=H,tl=T}, Ctxt) ->
 format_list_tail(Tail, Ctxt) ->
     ["|",format(Tail, add_indent(Ctxt, 1)),"]"].
 
+format_map_pair(Op, K, V, Ctxt0) ->
+    Ctxt1 = add_indent(Ctxt0, 1),
+    Txt = format(K, set_class(Ctxt1, expr)),
+    Ctxt2 = add_indent(Ctxt0, width(Txt, Ctxt1)),
+    [Txt,Op,format(V, Ctxt2)].
+
 indent(Ctxt) -> indent(Ctxt#ctxt.indent, Ctxt).
 
 indent(N, _) when N =< 0 -> "";
diff --git a/lib/compiler/src/core_scan.erl b/lib/compiler/src/core_scan.erl
index b7799b373a..8ab20b1982 100644
--- a/lib/compiler/src/core_scan.erl
+++ b/lib/compiler/src/core_scan.erl
@@ -271,8 +271,10 @@ scan1("->" ++ Cs, Toks, Pos) ->
     scan1(Cs, [{'->',Pos}|Toks], Pos);
 scan1("-|" ++ Cs, Toks, Pos) ->
     scan1(Cs, [{'-|',Pos}|Toks], Pos);
-scan1("::" ++ Cs, Toks, Pos) ->
-    scan1(Cs, [{'::',Pos}|Toks], Pos);
+scan1(":=" ++ Cs, Toks, Pos) ->
+    scan1(Cs, [{':=',Pos}|Toks], Pos);
+scan1("=>" ++ Cs, Toks, Pos) ->
+    scan1(Cs, [{'=>',Pos}|Toks], Pos);
 scan1([C|Cs], Toks, Pos) ->				%Punctuation character
     P = list_to_atom([C]),
     scan1(Cs, [{P,Pos}|Toks], Pos);
diff --git a/lib/compiler/src/erl_bifs.erl b/lib/compiler/src/erl_bifs.erl
index 6c75538194..bcc2297250 100644
--- a/lib/compiler/src/erl_bifs.erl
+++ b/lib/compiler/src/erl_bifs.erl
@@ -134,6 +134,7 @@ is_pure(math, erf, 1) -> true;
 is_pure(math, erfc, 1) -> true;
 is_pure(math, exp, 1) -> true;
 is_pure(math, log, 1) -> true;
+is_pure(math, log2, 1) -> true;
 is_pure(math, log10, 1) -> true;
 is_pure(math, pow, 2) -> true;
 is_pure(math, sin, 1) -> true;
diff --git a/lib/compiler/src/sys_core_fold.erl b/lib/compiler/src/sys_core_fold.erl
index ed8f609082..7f4184fd30 100644
--- a/lib/compiler/src/sys_core_fold.erl
+++ b/lib/compiler/src/sys_core_fold.erl
@@ -70,7 +70,8 @@
 -export([module/2,format_error/1]).
 
 -import(lists, [map/2,foldl/3,foldr/3,mapfoldl/3,all/2,any/2,
-		reverse/1,reverse/2,member/2,nth/2,flatten/1,unzip/1]).
+		reverse/1,reverse/2,member/2,nth/2,flatten/1,
+		unzip/1,keyfind/3]).
 
 -import(cerl, [ann_c_cons/3,ann_c_map/3,ann_c_tuple/2]).
 
@@ -91,10 +92,14 @@
 -endif.
 
 %% Variable value info.
--record(sub, {v=[],				%Variable substitutions
-	      s=[],				%Variables in scope
-	      t=[],				%Types
-	      in_guard=false}).			%In guard or not.
+-record(sub, {v=[],                                 %Variable substitutions
+              s=cerl_sets:new() :: cerl_sets:set(), %Variables in scope
+              t=#{} :: map(),                       %Types
+              in_guard=false}).                     %In guard or not.
+
+-type type_info() :: cerl:cerl() | 'bool' | 'integer'.
+-type yes_no_maybe() :: 'yes' | 'no' | 'maybe'.
+-type sub() :: #sub{}.
 
 -spec module(cerl:c_module(), [compile:option()]) ->
 	{'ok', cerl:c_module(), [_]}.
@@ -293,7 +298,8 @@ expr(#c_seq{arg=Arg0,body=B0}=Seq0, Ctxt, Sub) ->
 		false -> Seq0#c_seq{arg=Arg,body=B1}
 	    end
     end;
-expr(#c_let{}=Let, Ctxt, Sub) ->
+expr(#c_let{}=Let0, Ctxt, Sub) ->
+    Let = opt_case_in_let(Let0),
     case simplify_let(Let, Sub) of
 	impossible ->
 	    %% The argument for the let is "simple", i.e. has no
@@ -313,7 +319,7 @@ expr(#c_letrec{defs=Fs0,body=B0}=Letrec, Ctxt, Sub) ->
     Fs1 = map(fun ({Name,Fb}) ->
 		      {Name,expr(Fb, {letrec,Ctxt}, Sub)}
 	      end, Fs0),
-    B1 = body(B0, value, Sub),
+    B1 = body(B0, Ctxt, Sub),
     Letrec#c_letrec{defs=Fs1,body=B1};
 expr(#c_case{}=Case0, Ctxt, Sub) ->
     %% Ideally, the compiler should only emit warnings when there is
@@ -462,10 +468,7 @@ is_safe_simple(#c_call{module=#c_literal{val=erlang},
     case erl_internal:bool_op(Name, NumArgs) of
 	true ->
 	    %% Boolean operators are safe if the arguments are boolean.
-	    all(fun(#c_var{name=V}) -> is_boolean_type(V, Sub);
-		   (#c_literal{val=Lit}) -> is_boolean(Lit);
-		   (_) -> false
-		end, Args);
+	    all(fun(C) -> is_boolean_type(C, Sub) =:= yes end, Args);
 	false ->
 	    %% We need a rather complicated test to ensure that
 	    %% we only allow safe calls that are allowed in a guard.
@@ -607,14 +610,6 @@ eval_binary_1([#c_bitstr{val=#c_literal{val=Val},size=#c_literal{val=Sz},
 	error:_ ->
 	    throw(impossible)
     end;
-eval_binary_1([#c_bitstr{val=#c_literal{},size=#c_literal{},
-			 unit=#c_literal{},type=#c_literal{},
-			 flags=#c_cons{}=Flags}=Bitstr|Ss], Acc0) ->
-    case cerl:fold_literal(Flags) of
-	#c_literal{} = Flags1 ->
-	    eval_binary_1([Bitstr#c_bitstr{flags=Flags1}|Ss], Acc0);
-	_ -> throw(impossible)
-    end;
 eval_binary_1([], Acc) -> Acc;
 eval_binary_1(_, _) -> throw(impossible).
 
@@ -688,23 +683,15 @@ count_bits_1(Int, Bits) -> count_bits_1(Int bsr 64, Bits+64).
 %%  a rewritten expression consisting of a sequence of
 %%  the arguments only is returned.
 
-useless_call(effect, #c_call{anno=Anno,
-			     module=#c_literal{val=Mod},
+useless_call(effect, #c_call{module=#c_literal{val=Mod},
 			     name=#c_literal{val=Name},
 			     args=Args}=Call) ->
     A = length(Args),
     case erl_bifs:is_safe(Mod, Name, A) of
 	false ->
 	    case erl_bifs:is_pure(Mod, Name, A) of
-		true ->
-		    case member(result_not_wanted, Anno) of
-			false ->
-			    add_warning(Call, result_ignored);
-			true ->
-			    ok
-		    end;
-		false ->
-		    ok
+		true -> add_warning(Call, result_ignored);
+		false -> ok
 	    end,
 	    no;
 	true ->
@@ -730,385 +717,23 @@ make_effect_seq([], _) -> void().
 call(#c_call{args=As}=Call, #c_literal{val=M}=M0, #c_literal{val=N}=N0, Sub) ->
     case get(no_inline_list_funcs) of
   	true ->
- 	    call_0(Call, M0, N0, As, Sub);
+	    call_1(Call, M0, N0, As, Sub);
   	false ->
-  	    call_1(Call, M, N, As, Sub)
+	    case sys_core_fold_lists:call(Call, M, N, As) of
+		none ->
+		    call_1(Call, M, N, As, Sub);
+		Core ->
+		    expr(Core, Sub)
+	    end
+
       end;
 call(#c_call{args=As}=Call, M, N, Sub) ->
-    call_0(Call, M, N, As, Sub).
+    call_1(Call, M, N, As, Sub).
 
-call_0(Call, M, N, As0, Sub) ->
+call_1(Call, M, N, As0, Sub) ->
     As1 = expr_list(As0, value, Sub),
     fold_call(Call#c_call{args=As1}, M, N, As1, Sub).
 
-%% We inline some very common higher order list operations.
-%% We use the same evaluation order as the library function.
-
-call_1(#c_call{anno=Anno}, lists, all, [Arg1,Arg2], Sub) ->
-    Loop = #c_var{name={'lists^all',1}},
-    F = #c_var{name='F'},
-    Xs = #c_var{name='Xs'},
-    X = #c_var{name='X'},
-    Err1 = #c_tuple{es=[#c_literal{val='case_clause'}, X]},
-    CC1 = #c_clause{pats=[#c_literal{val=true}], guard=#c_literal{val=true},
-		    body=#c_apply{anno=Anno, op=Loop, args=[Xs]}},
-    CC2 = #c_clause{pats=[#c_literal{val=false}], guard=#c_literal{val=true},
-		    body=#c_literal{val=false}},
-    CC3 = #c_clause{pats=[X], guard=#c_literal{val=true},
-		    body=match_fail(Anno, Err1)},
-    C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
-		   body=#c_case{arg=#c_apply{anno=Anno, op=F, args=[X]},
-				clauses = [CC1, CC2, CC3]}},
-    C2 = #c_clause{pats=[#c_literal{val=[]}],
-		   guard=#c_call{module=#c_literal{val=erlang},
-				 name=#c_literal{val=is_function},
-				 args=[F, #c_literal{val=1}]},
-		   body=#c_literal{val=true}},
-    Err2 = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]},
-    C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
-		   body=match_fail([{function_name,{'lists^all',1}}|Anno], Err2)},
-    Fun = #c_fun{vars=[Xs],
-		 body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
-    L = #c_var{name='L'},
-    expr(#c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]},
-		body=#c_letrec{defs=[{Loop,Fun}],
-			       body=#c_apply{anno=Anno, op=Loop, args=[L]}}},
-	 Sub);
-call_1(#c_call{anno=Anno}, lists, any, [Arg1,Arg2], Sub) ->
-    Loop = #c_var{name={'lists^any',1}},
-    F = #c_var{name='F'},
-    Xs = #c_var{name='Xs'},
-    X = #c_var{name='X'},
-    Err1 = #c_tuple{es=[#c_literal{val='case_clause'}, X]},
-    CC1 = #c_clause{pats=[#c_literal{val=true}], guard=#c_literal{val=true},
-		    body=#c_literal{val=true}},
-    CC2 = #c_clause{pats=[#c_literal{val=false}], guard=#c_literal{val=true},
-		    body=#c_apply{anno=Anno, op=Loop, args=[Xs]}},
-    CC3 = #c_clause{pats=[X], guard=#c_literal{val=true},
-		    body=match_fail(Anno, Err1)},
-    C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
-		   body=#c_case{arg=#c_apply{anno=Anno, op=F, args=[X]},
-				clauses = [CC1, CC2, CC3]}},
-    C2 = #c_clause{pats=[#c_literal{val=[]}],
-		   guard=#c_call{module=#c_literal{val=erlang},
-				 name=#c_literal{val=is_function},
-				 args=[F, #c_literal{val=1}]},
-		   body=#c_literal{val=false}},
-    Err2 = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]},
-    C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
-		   body=match_fail([{function_name,{'lists^any',1}}|Anno], Err2)},
-    Fun = #c_fun{vars=[Xs],
-		 body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
-    L = #c_var{name='L'},
-    expr(#c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]},
-		body=#c_letrec{defs=[{Loop,Fun}],
-			       body=#c_apply{anno=Anno, op=Loop, args=[L]}}},
-	 Sub);
-call_1(#c_call{anno=Anno}, lists, foreach, [Arg1,Arg2], Sub) ->
-    Loop = #c_var{name={'lists^foreach',1}},
-    F = #c_var{name='F'},
-    Xs = #c_var{name='Xs'},
-    X = #c_var{name='X'},
-    C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
-		   body=#c_seq{arg=#c_apply{anno=Anno, op=F, args=[X]},
-			       body=#c_apply{anno=Anno, op=Loop, args=[Xs]}}},
-    C2 = #c_clause{pats=[#c_literal{val=[]}],
-		   guard=#c_call{module=#c_literal{val=erlang},
-				 name=#c_literal{val=is_function},
-				 args=[F, #c_literal{val=1}]},
-		   body=#c_literal{val=ok}},
-    Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]},
-    C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
-		   body=match_fail([{function_name,{'lists^foreach',1}}|Anno], Err)},
-    Fun = #c_fun{vars=[Xs],
-		 body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
-    L = #c_var{name='L'},
-    expr(#c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]},
-		body=#c_letrec{defs=[{Loop,Fun}],
-			       body=#c_apply{anno=Anno, op=Loop, args=[L]}}},
-	 Sub);
-call_1(#c_call{anno=Anno}, lists, map, [Arg1,Arg2], Sub) ->
-    Loop = #c_var{name={'lists^map',1}},
-    F = #c_var{name='F'},
-    Xs = #c_var{name='Xs'},
-    X = #c_var{name='X'},
-    H = #c_var{name='H'},
-    C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
-		   body=#c_let{vars=[H], arg=#c_apply{anno=Anno,
-						      op=F,
-						      args=[X]},
-			       body=#c_cons{hd=H,
-					    anno=[compiler_generated],
-					    tl=#c_apply{anno=Anno,
-							op=Loop,
-							args=[Xs]}}}},
-    C2 = #c_clause{pats=[#c_literal{val=[]}],
-		   guard=#c_call{module=#c_literal{val=erlang},
-				 name=#c_literal{val=is_function},
-				 args=[F, #c_literal{val=1}]},
-		   body=#c_literal{val=[]}},
-    Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]},
-    C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
-		   body=match_fail([{function_name,{'lists^map',1}}|Anno], Err)},
-    Fun = #c_fun{vars=[Xs],
-		 body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
-    L = #c_var{name='L'},
-    expr(#c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]},
-		body=#c_letrec{defs=[{Loop,Fun}],
-			       body=#c_apply{anno=Anno, op=Loop, args=[L]}}},
-	 Sub);
-call_1(#c_call{anno=Anno}, lists, flatmap, [Arg1,Arg2], Sub) ->
-    Loop = #c_var{name={'lists^flatmap',1}},
-    F = #c_var{name='F'},
-    Xs = #c_var{name='Xs'},
-    X = #c_var{name='X'},
-    H = #c_var{name='H'},
-    C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
-		   body=#c_let{vars=[H],
-			       arg=#c_apply{anno=Anno, op=F, args=[X]},
-			       body=#c_call{anno=[compiler_generated|Anno],
-					    module=#c_literal{val=erlang},
-					    name=#c_literal{val='++'},
-					    args=[H,
-						  #c_apply{anno=Anno,
-							   op=Loop,
-							   args=[Xs]}]}}},
-    C2 = #c_clause{pats=[#c_literal{val=[]}],
-		   guard=#c_call{module=#c_literal{val=erlang},
-				 name=#c_literal{val=is_function},
-				 args=[F, #c_literal{val=1}]},
-		   body=#c_literal{val=[]}},
-    Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]},
-    C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
-		   body=match_fail([{function_name,{'lists^flatmap',1}}|Anno], Err)},
-    Fun = #c_fun{vars=[Xs],
-		 body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
-    L = #c_var{name='L'},
-    expr(#c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]},
-		body=#c_letrec{defs=[{Loop,Fun}],
-			       body=#c_apply{anno=Anno, op=Loop, args=[L]}}},
-	 Sub);
-call_1(#c_call{anno=Anno}, lists, filter, [Arg1,Arg2], Sub) ->
-    Loop = #c_var{name={'lists^filter',1}},
-    F = #c_var{name='F'},
-    Xs = #c_var{name='Xs'},
-    X = #c_var{name='X'},
-    B = #c_var{name='B'},
-    Err1 = #c_tuple{es=[#c_literal{val='case_clause'}, X]},
-    CC1 = #c_clause{pats=[#c_literal{val=true}], guard=#c_literal{val=true},
-		    body=#c_cons{anno=[compiler_generated], hd=X, tl=Xs}},
-    CC2 = #c_clause{pats=[#c_literal{val=false}], guard=#c_literal{val=true},
-		    body=Xs},
-    CC3 = #c_clause{pats=[X], guard=#c_literal{val=true},
-		    body=match_fail(Anno, Err1)},
-    Case = #c_case{arg=B, clauses = [CC1, CC2, CC3]},
-    C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
-		   body=#c_let{vars=[B],
-			       arg=#c_apply{anno=Anno, op=F, args=[X]},
-			       body=#c_let{vars=[Xs],
-					   arg=#c_apply{anno=Anno,
-							op=Loop,
-							args=[Xs]},
-					   body=Case}}},
-    C2 = #c_clause{pats=[#c_literal{val=[]}],
-		   guard=#c_call{module=#c_literal{val=erlang},
-				 name=#c_literal{val=is_function},
-				 args=[F, #c_literal{val=1}]},
-		   body=#c_literal{val=[]}},
-    Err2 = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]},
-    C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
-		   body=match_fail([{function_name,{'lists^filter',1}}|Anno], Err2)},
-    Fun = #c_fun{vars=[Xs],
-		 body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
-    L = #c_var{name='L'},
-    expr(#c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]},
-		body=#c_letrec{defs=[{Loop,Fun}],
-			       body=#c_apply{anno=Anno, op=Loop, args=[L]}}},
-    Sub);
-call_1(#c_call{anno=Anno}, lists, foldl, [Arg1,Arg2,Arg3], Sub) ->
-    Loop = #c_var{name={'lists^foldl',2}},
-    F = #c_var{name='F'},
-    Xs = #c_var{name='Xs'},
-    X = #c_var{name='X'},
-    A = #c_var{name='A'},
-    C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
-		   body=#c_apply{anno=Anno,
-				 op=Loop,
-				 args=[Xs, #c_apply{anno=Anno,
-						    op=F,
-						    args=[X, A]}]}},
-    C2 = #c_clause{pats=[#c_literal{val=[]}],
-		   guard=#c_call{module=#c_literal{val=erlang},
-				 name=#c_literal{val=is_function},
-				 args=[F, #c_literal{val=2}]},
-		   body=A},
-    Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, A, Xs]},
-    C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
-		   body=match_fail([{function_name,{'lists^foldl',2}}|Anno], Err)},
-    Fun = #c_fun{vars=[Xs, A],
-		 body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
-    L = #c_var{name='L'},
-    expr(#c_let{vars=[F, A, L], arg=#c_values{es=[Arg1, Arg2, Arg3]},
-		body=#c_letrec{defs=[{Loop,Fun}],
-			       body=#c_apply{anno=Anno, op=Loop, args=[L, A]}}},
-	 Sub);
-call_1(#c_call{anno=Anno}, lists, foldr, [Arg1,Arg2,Arg3], Sub) ->
-    Loop = #c_var{name={'lists^foldr',2}},
-    F = #c_var{name='F'},
-    Xs = #c_var{name='Xs'},
-    X = #c_var{name='X'},
-    A = #c_var{name='A'},
-    C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
-		   body=#c_apply{anno=Anno,
-				 op=F,
-				 args=[X, #c_apply{anno=Anno,
-						   op=Loop,
-						   args=[Xs, A]}]}},
-    C2 = #c_clause{pats=[#c_literal{val=[]}],
-		   guard=#c_call{module=#c_literal{val=erlang},
-				 name=#c_literal{val=is_function},
-				 args=[F, #c_literal{val=2}]},
-		   body=A},
-    Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, A, Xs]},
-    C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
-		   body=match_fail([{function_name,{'lists^foldr',2}}|Anno], Err)},
-    Fun = #c_fun{vars=[Xs, A],
-		 body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
-    L = #c_var{name='L'},
-    expr(#c_let{vars=[F, A, L], arg=#c_values{es=[Arg1, Arg2, Arg3]},
-		body=#c_letrec{defs=[{Loop,Fun}],
-			       body=#c_apply{anno=Anno, op=Loop, args=[L, A]}}},
-	 Sub);
-call_1(#c_call{anno=Anno}, lists, mapfoldl, [Arg1,Arg2,Arg3], Sub) ->
-    Loop = #c_var{name={'lists^mapfoldl',2}},
-    F = #c_var{name='F'},
-    Xs = #c_var{name='Xs'},
-    X = #c_var{name='X'},
-    Avar = #c_var{name='A'},
-    Match =
-	fun (A, P, E) ->
-		C1 = #c_clause{pats=[P], guard=#c_literal{val=true}, body=E},
-		Err = #c_tuple{es=[#c_literal{val='badmatch'}, X]},
-		C2 = #c_clause{pats=[X], guard=#c_literal{val=true},
-			       body=match_fail(Anno, Err)},
-		#c_case{arg=A, clauses=[C1, C2]}
-	end,
-    C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
-		   body=Match(#c_apply{anno=Anno, op=F, args=[X, Avar]},
-			      #c_tuple{es=[X, Avar]},
-%%% Tuple passing version
-			      Match(#c_apply{anno=Anno,
-					     op=Loop,
-					     args=[Xs, Avar]},
-				    #c_tuple{es=[Xs, Avar]},
-				    #c_tuple{anno=[compiler_generated],
-					     es=[#c_cons{anno=[compiler_generated],
-							 hd=X, tl=Xs},
-						 Avar]})
-%%% Multiple-value version
-%%% 			      #c_let{vars=[Xs,A],
-%%% 				     %% The tuple here will be optimised
-%%% 				     %% away later; no worries.
-%%% 				     arg=#c_apply{op=Loop, args=[Xs, A]},
-%%% 				     body=#c_values{es=[#c_cons{hd=X, tl=Xs},
-%%% 							A]}}
-			     )},
-    C2 = #c_clause{pats=[#c_literal{val=[]}],
-		   guard=#c_call{module=#c_literal{val=erlang},
-				 name=#c_literal{val=is_function},
-				 args=[F, #c_literal{val=2}]},
-%%% Tuple passing version
-		   body=#c_tuple{anno=[compiler_generated],
-				 es=[#c_literal{val=[]}, Avar]}},
-%%% Multiple-value version
-%%% 		   body=#c_values{es=[#c_literal{val=[]}, A]}},
-    Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Avar, Xs]},
-    C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
-		   body=match_fail([{function_name,{'lists^mapfoldl',2}}|Anno], Err)},
-    Fun = #c_fun{vars=[Xs, Avar],
-		 body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
-    L = #c_var{name='L'},
-    expr(#c_let{vars=[F, Avar, L], arg=#c_values{es=[Arg1, Arg2, Arg3]},
-		body=#c_letrec{defs=[{Loop,Fun}],
-%%% Tuple passing version
-			       body=#c_apply{anno=Anno,
-					     op=Loop,
-					     args=[L, Avar]}}},
-%%% Multiple-value version
-%%% 			       body=#c_let{vars=[Xs, A],
-%%% 					   arg=#c_apply{op=Loop,
-%%% 							args=[L, A]},
-%%% 					   body=#c_tuple{es=[Xs, A]}}}},
-	 Sub);
-call_1(#c_call{anno=Anno}, lists, mapfoldr, [Arg1,Arg2,Arg3], Sub) ->
-    Loop = #c_var{name={'lists^mapfoldr',2}},
-    F = #c_var{name='F'},
-    Xs = #c_var{name='Xs'},
-    X = #c_var{name='X'},
-    Avar = #c_var{name='A'},
-    Match =
-	fun (A, P, E) ->
-		C1 = #c_clause{pats=[P], guard=#c_literal{val=true}, body=E},
-		Err = #c_tuple{es=[#c_literal{val='badmatch'}, X]},
-		C2 = #c_clause{pats=[X], guard=#c_literal{val=true},
-			       body=match_fail(Anno, Err)},
-		#c_case{arg=A, clauses=[C1, C2]}
-	end,
-    C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
-%%% Tuple passing version
-		   body=Match(#c_apply{anno=Anno,
-				       op=Loop,
-				       args=[Xs, Avar]},
-			      #c_tuple{es=[Xs, Avar]},
-			      Match(#c_apply{anno=Anno, op=F, args=[X, Avar]},
-				    #c_tuple{es=[X, Avar]},
-				    #c_tuple{anno=[compiler_generated],
-					     es=[#c_cons{anno=[compiler_generated],
-							 hd=X, tl=Xs}, Avar]}))
-%%% Multiple-value version
-%%% 		   body=#c_let{vars=[Xs,A],
-%%% 			       %% The tuple will be optimised away
-%%% 			       arg=#c_apply{op=Loop, args=[Xs, A]},
-%%% 			       body=Match(#c_apply{op=F, args=[X, A]},
-%%% 					  #c_tuple{es=[X, A]},
-%%% 					  #c_values{es=[#c_cons{hd=X, tl=Xs},
-%%% 						        A]})}
-		  },
-    C2 = #c_clause{pats=[#c_literal{val=[]}],
-		   guard=#c_call{module=#c_literal{val=erlang},
-				 name=#c_literal{val=is_function},
-				 args=[F, #c_literal{val=2}]},
-%%% Tuple passing version
-		   body=#c_tuple{anno=[compiler_generated],
-				 es=[#c_literal{val=[]}, Avar]}},
-%%% Multiple-value version
-%%% 		   body=#c_values{es=[#c_literal{val=[]}, A]}},
-    Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Avar, Xs]},
-    C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
-		   body=match_fail([{function_name,{'lists^mapfoldr',2}}|Anno], Err)},
-    Fun = #c_fun{vars=[Xs, Avar],
-		 body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
-    L = #c_var{name='L'},
-    expr(#c_let{vars=[F, Avar, L], arg=#c_values{es=[Arg1, Arg2, Arg3]},
-		body=#c_letrec{defs=[{Loop,Fun}],
-%%% Tuple passing version
-			       body=#c_apply{anno=Anno,
-					     op=Loop,
-					     args=[L, Avar]}}},
-%%% Multiple-value version
-%%% 			       body=#c_let{vars=[Xs, A],
-%%% 					   arg=#c_apply{op=Loop,
-%%% 							args=[L, A]},
-%%% 					   body=#c_tuple{es=[Xs, A]}}}},
-	 Sub);
-call_1(#c_call{module=M, name=N}=Call, _, _, As, Sub) ->
-    call_0(Call, M, N, As, Sub).
-
-match_fail(Anno, Arg) ->
-    #c_primop{anno=Anno,
-	      name=#c_literal{val='match_fail'},
-	      args=[Arg]}.
-
 %% fold_call(Call, Mod, Name, Args, Sub) -> Expr.
 %%  Try to safely evaluate the call.  Just try to evaluate arguments,
 %%  do the call and convert return values to literals.  If this
@@ -1133,29 +758,33 @@ fold_call_1(Call, Mod, Name, Args, Sub) ->
 	true -> fold_call_2(Call, Mod, Name, Args, Sub)
     end.
 
-fold_call_2(Call, Module, Name, Args0, Sub) ->
-    try
-	Args = [core_lib:literal_value(A) || A <- Args0],
-	try apply(Module, Name, Args) of
-	    Val ->
-		case cerl:is_literal_term(Val) of
-		    true ->
-			#c_literal{val=Val};
-		    false ->
-			%% Successful evaluation, but it was not
-			%% possible to express the computed value as a literal.
-			Call
-		end
-	catch
-	    error:Reason ->
-		%% Evaluation of the function failed. Warn and replace
-		%% the call with a call to erlang:error/1.
-		eval_failure(Call, Reason)
-	end
+fold_call_2(Call, Module, Name, Args, Sub) ->
+    case all(fun cerl:is_literal/1, Args) of
+	true ->
+	    %% All arguments are literals.
+	    fold_lit_args(Call, Module, Name, Args);
+	false ->
+	    %% At least one non-literal argument.
+	    fold_non_lit_args(Call, Module, Name, Args, Sub)
+    end.
+
+fold_lit_args(Call, Module, Name, Args0) ->
+    Args = [cerl:concrete(A) || A <- Args0],
+    try apply(Module, Name, Args) of
+	Val ->
+	    case cerl:is_literal_term(Val) of
+		true ->
+		    cerl:abstract(Val);
+		false ->
+		    %% Successful evaluation, but it was not possible
+		    %% to express the computed value as a literal.
+		    Call
+	    end
     catch
-	error:_ ->
-	    %% There was at least one non-literal argument.
-	    fold_non_lit_args(Call, Module, Name, Args0, Sub)
+	error:Reason ->
+	    %% Evaluation of the function failed. Warn and replace
+	    %% the call with a call to erlang:error/1.
+	    eval_failure(Call, Reason)
     end.
 
 %% fold_non_lit_args(Call, Module, Name, Args, Sub) -> Expr.
@@ -1194,36 +823,43 @@ fold_non_lit_args(Call, _, _, _, _) -> Call.
 %% Evaluate a relational operation using type information.
 eval_rel_op(Call, Op, [#c_var{name=V},#c_var{name=V}], _) ->
     Bool = erlang:Op(same, same),
-    #c_literal{anno=core_lib:get_anno(Call),val=Bool};
-eval_rel_op(Call, '=:=', [#c_var{name=V}=Var,#c_literal{val=true}], Sub) ->
+    #c_literal{anno=cerl:get_ann(Call),val=Bool};
+eval_rel_op(Call, '=:=', [Term,#c_literal{val=true}], Sub) ->
     %% BoolVar =:= true  ==>  BoolVar
-    case is_boolean_type(V, Sub) of
-	true -> Var;
-	false -> Call
+    case is_boolean_type(Term, Sub) of
+	yes -> Term;
+	maybe -> Call;
+	no -> #c_literal{val=false}
     end;
-eval_rel_op(Call, '==', Ops, _Sub) ->
-    case is_exact_eq_ok(Ops) of
+eval_rel_op(Call, '==', Ops, Sub) ->
+    case is_exact_eq_ok(Ops, Sub) of
 	true ->
-	    Name = #c_literal{anno=core_lib:get_anno(Call),val='=:='},
+	    Name = #c_literal{anno=cerl:get_ann(Call),val='=:='},
 	    Call#c_call{name=Name};
 	false ->
 	    Call
     end;
-eval_rel_op(Call, '/=', Ops, _Sub) ->
-    case is_exact_eq_ok(Ops) of
+eval_rel_op(Call, '/=', Ops, Sub) ->
+    case is_exact_eq_ok(Ops, Sub) of
 	true ->
-	    Name = #c_literal{anno=core_lib:get_anno(Call),val='=/='},
+	    Name = #c_literal{anno=cerl:get_ann(Call),val='=/='},
 	    Call#c_call{name=Name};
 	false ->
 	    Call
     end;
 eval_rel_op(Call, _, _, _) -> Call.
 
-is_exact_eq_ok([#c_literal{val=Lit}|_]) ->
+is_exact_eq_ok([A,B]=L, Sub) ->
+    case is_int_type(A, Sub) =:= yes andalso is_int_type(B, Sub) =:= yes of
+	true -> true;
+	false -> is_exact_eq_ok_1(L)
+    end.
+
+is_exact_eq_ok_1([#c_literal{val=Lit}|_]) ->
     is_non_numeric(Lit);
-is_exact_eq_ok([_|T]) ->
-    is_exact_eq_ok(T);
-is_exact_eq_ok([]) -> false.
+is_exact_eq_ok_1([_|T]) ->
+    is_exact_eq_ok_1(T);
+is_exact_eq_ok_1([]) -> false.
 
 is_non_numeric([H|T]) ->
     is_non_numeric(H) andalso is_non_numeric(T);
@@ -1247,40 +883,31 @@ is_non_numeric_tuple(_Tuple, 0) -> true.
 %% there must be at least one non-literal argument (i.e.
 %% there is no need to handle the case that all argments
 %% are literal).
-eval_bool_op(Call, 'and', [#c_literal{val=true},#c_var{name=V}=Res], Sub) ->
-    case is_boolean_type(V, Sub) of
-	true -> Res;
-	false-> Call
-    end;
-eval_bool_op(Call, 'and', [#c_var{name=V}=Res,#c_literal{val=true}], Sub) ->
-    case is_boolean_type(V, Sub) of
-	true -> Res;
-	false-> Call
-    end;
-eval_bool_op(Call, 'and', [#c_literal{val=false}=Res,#c_var{name=V}], Sub) ->
-    case is_boolean_type(V, Sub) of
-	true -> Res;
-	false-> Call
-    end;
-eval_bool_op(Call, 'and', [#c_var{name=V},#c_literal{val=false}=Res], Sub) ->
-    case is_boolean_type(V, Sub) of
-	true -> Res;
-	false-> Call
-    end;
+
+eval_bool_op(Call, 'and', [#c_literal{val=true},Term], Sub) ->
+    eval_bool_op_1(Call, Term, Term, Sub);
+eval_bool_op(Call, 'and', [Term,#c_literal{val=true}], Sub) ->
+    eval_bool_op_1(Call, Term, Term, Sub);
+eval_bool_op(Call, 'and', [#c_literal{val=false}=Res,Term], Sub) ->
+    eval_bool_op_1(Call, Res, Term, Sub);
+eval_bool_op(Call, 'and', [Term,#c_literal{val=false}=Res], Sub) ->
+    eval_bool_op_1(Call, Res, Term, Sub);
 eval_bool_op(Call, _, _, _) -> Call.
 
+eval_bool_op_1(Call, Res, Term, Sub) ->
+    case is_boolean_type(Term, Sub) of
+	yes -> Res;
+	no -> eval_failure(Call, badarg);
+	maybe -> Call
+    end.
+
 %% Evaluate is_boolean/1 using type information.
-eval_is_boolean(Call, #c_var{name=V}, Sub) ->
-    case is_boolean_type(V, Sub) of
-	true -> #c_literal{val=true};
-	false -> Call
-    end;
-eval_is_boolean(_, #c_cons{}, _) ->
-    #c_literal{val=false};
-eval_is_boolean(_, #c_tuple{}, _) ->
-    #c_literal{val=false};
-eval_is_boolean(Call, _, _) ->
-    Call.
+eval_is_boolean(Call, Term, Sub) ->
+    case is_boolean_type(Term, Sub) of
+	no -> #c_literal{val=false};
+	yes -> #c_literal{val=true};
+	maybe -> Call
+    end.
 
 %% eval_length(Call, List) -> Val.
 %%  Evaluates the length for the prefix of List which has a known
@@ -1330,36 +957,33 @@ eval_append(Call, X, Y) ->
 %%  Evaluates element/2 if the position Pos is a literal and
 %%  the shape of the tuple Tuple is known.
 %%
-eval_element(Call, #c_literal{val=Pos}, #c_tuple{es=Es}, _Types) when is_integer(Pos) ->
-    if
-	1 =< Pos, Pos =< length(Es) ->
-	    lists:nth(Pos, Es);
-	true ->
-	    eval_failure(Call, badarg)
-    end;
-eval_element(Call, #c_literal{val=Pos}, #c_var{name=V}, Types)
+eval_element(Call, #c_literal{val=Pos}, Tuple, Types)
   when is_integer(Pos) ->
-    case orddict:find(V, Types#sub.t) of
-	{ok,#c_tuple{es=Elements}} ->
+    case get_type(Tuple, Types) of
+	none ->
+	    Call;
+	Type ->
+	    Es = case cerl:is_c_tuple(Type) of
+		     false -> [];
+		     true -> cerl:tuple_es(Type)
+		 end,
 	    if
-		1 =< Pos, Pos =< length(Elements) ->
-		    El = lists:nth(Pos, Elements),
+		1 =< Pos, Pos =< length(Es) ->
+		    El = lists:nth(Pos, Es),
 		    try
-			pat_to_expr(El)
+			cerl:set_ann(pat_to_expr(El), [compiler_generated])
 		    catch
 			throw:impossible ->
 			    Call
 		    end;
 		true ->
+		    %% Index outside tuple or not a tuple.
 		    eval_failure(Call, badarg)
-	    end;
-	{ok,_} ->
-	    eval_failure(Call, badarg);
-	error ->
-	    Call
+	    end
     end;
-eval_element(Call, Pos, Tuple, _Types) ->
-    case is_not_integer(Pos) orelse is_not_tuple(Tuple) of
+eval_element(Call, Pos, Tuple, Sub) ->
+    case is_int_type(Pos, Sub) =:= no orelse
+	is_tuple_type(Tuple, Sub) =:= no of
 	true ->
 	    eval_failure(Call, badarg);
 	false ->
@@ -1369,58 +993,55 @@ eval_element(Call, Pos, Tuple, _Types) ->
 %% eval_is_record(Call, Var, Tag, Size, Types) -> Val.
 %%  Evaluates is_record/3 using type information.
 %%
-eval_is_record(Call, #c_var{name=V}, #c_literal{val=NeededTag}=Lit,
+eval_is_record(Call, Term, #c_literal{val=NeededTag},
 	       #c_literal{val=Size}, Types) ->
-    case orddict:find(V, Types#sub.t) of
-	{ok,#c_tuple{es=[#c_literal{val=Tag}|_]=Es}} ->
-	    Lit#c_literal{val=Tag =:= NeededTag andalso
-			  length(Es) =:= Size};
-	_ ->
-	    Call
+    case get_type(Term, Types) of
+	none ->
+	    Call;
+	Type ->
+	    Es = case cerl:is_c_tuple(Type) of
+		     false -> [];
+		     true -> cerl:tuple_es(Type)
+		 end,
+	    case Es of
+		[#c_literal{val=Tag}|_] ->
+		    Bool = Tag =:= NeededTag andalso
+			length(Es) =:= Size,
+		    #c_literal{val=Bool};
+		_ ->
+		    #c_literal{val=false}
+	    end
     end;
 eval_is_record(Call, _, _, _, _) -> Call.
 
-%% is_not_integer(Core) -> true | false.
-%%  Returns true if Core is definitely not an integer.
-
-is_not_integer(#c_literal{val=Val}) when not is_integer(Val) -> true;
-is_not_integer(#c_tuple{}) -> true;
-is_not_integer(#c_cons{}) -> true;
-is_not_integer(#c_map{}) -> true;
-is_not_integer(_) -> false.
-
-%% is_not_tuple(Core) -> true | false.
-%%  Returns true if Core is definitely not a tuple.
-
-is_not_tuple(#c_literal{val=Val}) when not is_tuple(Val) -> true;
-is_not_tuple(#c_cons{}) -> true;
-is_not_tuple(#c_map{}) -> true;
-is_not_tuple(_) -> false.
-
 %% eval_setelement(Call, Pos, Tuple, NewVal) -> Core.
 %%  Evaluates setelement/3 if position Pos is an integer
-%%  the shape of the tuple Tuple is known.
+%%  and the shape of the tuple Tuple is known.
 %%
-eval_setelement(Call, Pos, Tuple, NewVal) ->
-    try
-	eval_setelement_1(Pos, Tuple, NewVal)
-    catch
-	error:_ ->
-	    Call
-    end.
-
-eval_setelement_1(#c_literal{val=Pos}, #c_tuple{anno=A,es=Es}, NewVal)
+eval_setelement(Call, #c_literal{val=Pos}, Tuple, NewVal)
   when is_integer(Pos) ->
-    ann_c_tuple(A, eval_setelement_2(Pos, Es, NewVal));
-eval_setelement_1(#c_literal{val=Pos}, #c_literal{anno=A,val=Es0}, NewVal)
-  when is_integer(Pos) ->
-    Es = [#c_literal{anno=A,val=E} || E <- tuple_to_list(Es0)],
-    ann_c_tuple(A, eval_setelement_2(Pos, Es, NewVal)).
+    case cerl:is_data(Tuple) of
+	false ->
+	    Call;
+	true ->
+	    Es0 = case cerl:is_c_tuple(Tuple) of
+		      false -> [];
+		      true -> cerl:tuple_es(Tuple)
+		  end,
+	    if
+		1 =< Pos, Pos =< length(Es0) ->
+		    Es = eval_setelement_1(Pos, Es0, NewVal),
+		    cerl:update_c_tuple(Tuple, Es);
+		true ->
+		    eval_failure(Call, badarg)
+	    end
+    end;
+eval_setelement(Call, _, _, _) -> Call.
 
-eval_setelement_2(1, [_|T], NewVal) ->
+eval_setelement_1(1, [_|T], NewVal) ->
     [NewVal|T];
-eval_setelement_2(Pos, [H|T], NewVal) when Pos > 1 ->
-    [H|eval_setelement_2(Pos-1, T, NewVal)].
+eval_setelement_1(Pos, [H|T], NewVal) when Pos > 1 ->
+    [H|eval_setelement_1(Pos-1, T, NewVal)].
 
 %% eval_failure(Call, Reason) -> Core.
 %%  Warn for a call that will fail and replace the call with
@@ -1500,20 +1121,32 @@ clause(#c_clause{pats=Ps0,guard=G0,body=B0}=Cl, Cexpr, Ctxt, Sub0) ->
 let_substs(Vs0, As0, Sub0) ->
     {Vs1,Sub1} = pattern_list(Vs0, Sub0),
     {Vs2,As1,Ss} = let_substs_1(Vs1, As0, Sub1),
-    Sub2 = scope_add([V || #c_var{name=V} <- Vs2], Sub1),
+    Sub2 = sub_add_scope([V || #c_var{name=V} <- Vs2], Sub1),
     {Vs2,As1,
-     foldl(fun ({V,S}, Sub) -> sub_set_name(V, S, Sub) end, Sub2, Ss)}.
+    foldl(fun ({V,S}, Sub) -> sub_set_name(V, S, Sub) end, Sub2, Ss)}.
 
 let_substs_1(Vs, #c_values{es=As}, Sub) ->
     let_subst_list(Vs, As, Sub);
 let_substs_1([V], A, Sub) -> let_subst_list([V], [A], Sub);
 let_substs_1(Vs, A, _) -> {Vs,A,[]}.
 
-let_subst_list([V|Vs0], [A|As0], Sub) ->
+let_subst_list([V|Vs0], [A0|As0], Sub) ->
     {Vs1,As1,Ss} = let_subst_list(Vs0, As0, Sub),
-    case is_subst(A) of
-	true -> {Vs1,As1,sub_subst_var(V, A, Sub) ++ Ss};
-	false -> {[V|Vs1],[A|As1],Ss}
+    case is_subst(A0) of
+	true ->
+	    A = case is_compiler_generated(V) andalso
+		    not is_compiler_generated(A0) of
+		    true ->
+			%% Propagate the 'compiler_generated' annotation
+			%% along with the value.
+			Ann = [compiler_generated|cerl:get_ann(A0)],
+			cerl:set_ann(A0, Ann);
+		    false ->
+			A0
+		end,
+	    {Vs1,As1,sub_subst_var(V, A, Sub) ++ Ss};
+	false ->
+	    {[V|Vs1],[A0|As1],Ss}
     end;
 let_subst_list([], [], _) -> {[],[],[]}.
 
@@ -1535,7 +1168,7 @@ pattern(#c_var{}=Pat, Isub, Osub) ->
 	true ->
 	    V1 = make_var_name(),
 	    Pat1 = #c_var{name=V1},
-	    {Pat1,sub_set_var(Pat, Pat1, scope_add([V1], Osub))};
+	    {Pat1,sub_set_var(Pat, Pat1, sub_add_scope([V1], Osub))};
 	false ->
 	    {Pat,sub_del_var(Pat, Osub)}
     end;
@@ -1605,6 +1238,7 @@ is_subst(_) -> false.
 %% sub_del_var(Var, #sub{}) -> #sub{}.
 %% sub_subst_var(Var, Value, #sub{}) -> [{Name,Value}].
 %% sub_is_val(Var, #sub{}) -> boolean().
+%% sub_add_scope(#sub{}) -> #sub{}
 %% sub_subst_scope(#sub{}) -> #sub{}
 %%
 %%  We use the variable name as key so as not have problems with
@@ -1615,14 +1249,15 @@ is_subst(_) -> false.
 %%  In addition to the list of substitutions, we also keep track of
 %%  all variable currently live (the scope).
 %%
-%%  sub_subst_scope/1 adds dummy substitutions for all variables
-%%  in the scope in order to force renaming if variables in the
-%%  scope occurs as pattern variables.
+%%  sub_add_scope/2 adds variables to the scope.  sub_subst_scope/1
+%%  adds dummy substitutions for all variables in the scope in order
+%%  to force renaming if variables in the scope occurs as pattern
+%%  variables.
 
-sub_new() -> #sub{v=orddict:new(),s=gb_trees:empty(),t=[]}.
+sub_new() -> #sub{v=orddict:new(),s=cerl_sets:new(),t=#{}}.
 
 sub_new(#sub{}=Sub) ->
-    Sub#sub{v=orddict:new(),t=[]}.
+    Sub#sub{v=orddict:new(),t=#{}}.
 
 sub_new_preserve_types(#sub{}=Sub) ->
     Sub#sub{v=orddict:new()}.
@@ -1639,16 +1274,16 @@ sub_set_var(#c_var{name=V}, Val, Sub) ->
 sub_set_name(V, Val, #sub{v=S,s=Scope,t=Tdb0}=Sub) ->
     Tdb1 = kill_types(V, Tdb0),
     Tdb = copy_type(V, Val, Tdb1),
-    Sub#sub{v=orddict:store(V, Val, S),s=gb_sets:add(V, Scope),t=Tdb}.
+    Sub#sub{v=orddict:store(V, Val, S),s=cerl_sets:add_element(V, Scope),t=Tdb}.
 
 sub_del_var(#c_var{name=V}, #sub{v=S,s=Scope,t=Tdb}=Sub) ->
     %% Profiling shows that for programs with many record operations,
     %% sub_del_var/2 is a bottleneck. Since the scope contains all
     %% variables that are live, we know that V cannot be present in S
     %% if it is not in the scope.
-    case gb_sets:is_member(V, Scope) of
+    case cerl_sets:is_element(V, Scope) of
 	false ->
-	    Sub#sub{s=gb_sets:insert(V, Scope)};
+	    Sub#sub{s=cerl_sets:add_element(V, Scope)};
 	true ->
 	    Sub#sub{v=orddict:erase(V, S),t=kill_types(V, Tdb)}
     end.
@@ -1657,8 +1292,14 @@ sub_subst_var(#c_var{name=V}, Val, #sub{v=S0}) ->
     %% Fold chained substitutions.
     [{V,Val}] ++ [ {K,Val} || {K,#c_var{name=V1}} <- S0, V1 =:= V].
 
+sub_add_scope(Vs, #sub{s=Scope0}=Sub) ->
+    Scope = foldl(fun(V, S) when is_integer(V); is_atom(V) ->
+			  cerl_sets:add_element(V, S)
+		  end, Scope0, Vs),
+    Sub#sub{s=Scope}.
+
 sub_subst_scope(#sub{v=S0,s=Scope}=Sub) ->
-    S = [{-1,#c_var{name=Sv}} || Sv <- gb_sets:to_list(Scope)]++S0,
+    S = [{-1,#c_var{name=Sv}} || Sv <- cerl_sets:to_list(Scope)]++S0,
     Sub#sub{v=S}.
 
 sub_is_val(#c_var{name=V}, #sub{v=S,s=Scope}) ->
@@ -1666,7 +1307,7 @@ sub_is_val(#c_var{name=V}, #sub{v=S,s=Scope}) ->
     %% became the new bottleneck. Since the scope contains all
     %% live variables, a variable V can only be the target for
     %% a substitution if it is in the scope.
-    gb_sets:is_member(V, Scope) andalso v_is_value(V, S).
+    cerl_sets:is_element(V, Scope) andalso v_is_value(V, S).
 
 v_is_value(Var, [{_,#c_var{name=Var}}|_]) -> true;
 v_is_value(Var, [_|T]) -> v_is_value(Var, T);
@@ -1704,7 +1345,7 @@ clauses(E, [C0|Cs], Ctxt, Sub, LitExpr) ->
 	{yes,yes} ->
 	    case LitExpr of
 		false ->
-		    Line = get_line(core_lib:get_anno(C1)),
+		    Line = get_line(cerl:get_ann(C1)),
 		    shadow_warning(Cs, Line);
 		true ->
 		    %% If the case expression is a literal,
@@ -1938,7 +1579,7 @@ opt_bool_case_guard(#c_case{arg=Arg,clauses=Cs0}=Case) ->
 	    Case;
 	true ->
 	    Cs = opt_bool_case_guard(Arg, Cs0),
-	    Case#c_case{arg=#c_values{anno=core_lib:get_anno(Arg),es=[]},
+	    Case#c_case{arg=#c_values{anno=cerl:get_ann(Arg),es=[]},
 			clauses=Cs}
     end.
 
@@ -1986,6 +1627,7 @@ eval_case(#c_case{arg=E,clauses=[#c_clause{pats=Ps0,
 	    %% is correct, the clause will always match at run-time.
 	    Case;
 	{true,Bs} ->
+	    eval_case_warn(B),
 	    {Ps,As} = unzip(Bs),
 	    InnerLet = cerl:c_let(Ps, core_lib:make_values(As), B),
 	    Let = cerl:c_let(Vs, E, InnerLet),
@@ -1993,6 +1635,18 @@ eval_case(#c_case{arg=E,clauses=[#c_clause{pats=Ps0,
     end;
 eval_case(Case, _) -> Case.
 
+eval_case_warn(#c_primop{anno=Anno,
+			 name=#c_literal{val=match_fail},
+			 args=[_]}=Core) ->
+    case keyfind(eval_failure, 1, Anno) of
+	false ->
+	    ok;
+	{eval_failure,Reason} ->
+	    %% Example: M = not_map, M#{k:=v}
+	    add_warning(Core, {eval_failure,Reason})
+    end;
+eval_case_warn(_) -> ok.
+
 %% case_opt(CaseArg, [Clause]) -> {CaseArg,[Clause]}.
 %%  Try and optimise a case by avoid building tuples or lists
 %%  in the case expression. Instead combine the variable parts
@@ -2048,12 +1702,31 @@ case_opt_args([], Cs, _Sub, _LitExpr, Acc) ->
 %%  Try to expand one argument to several arguments (if tuple/list)
 %%  or to remove a literal argument.
 %%
-case_opt_arg(E0, Sub, Cs0, LitExpr) ->
-    E = maybe_replace_var(E0, Sub),
-    case cerl:is_data(E) of
+case_opt_arg(E0, Sub, Cs, LitExpr) ->
+    case cerl:is_c_var(E0) of
+	false ->
+	    case_opt_arg_1(E0, Cs, LitExpr);
+	true ->
+	    case case_will_var_match(Cs) of
+		true ->
+		    %% All clauses will match a variable in the
+		    %% current position. Don't expand this variable
+		    %% (that can only make the code worse).
+		    {error,Cs};
+		false ->
+		    %% If possible, expand this variable to a previously
+		    %% matched term.
+		    E = case_expand_var(E0, Sub),
+		    case_opt_arg_1(E, Cs, LitExpr)
+	    end
+    end.
+
+case_opt_arg_1(E0, Cs0, LitExpr) ->
+    case cerl:is_data(E0) of
 	false ->
             {error,Cs0};
 	true ->
+	    E = case_opt_compiler_generated(E0),
 	    Cs = case_opt_nomatch(E, Cs0, LitExpr),
 	    case cerl:data_type(E) of
 		{atomic,_} ->
@@ -2063,20 +1736,45 @@ case_opt_arg(E0, Sub, Cs0, LitExpr) ->
 	    end
     end.
 
-%% maybe_replace_var(Expr0, Sub) -> Expr
+%% case_will_var_match([Clause]) -> true | false.
+%%  Return if all clauses will match a variable in the
+%%  current position.
+%%
+case_will_var_match(Cs) ->
+    all(fun({[P|_],_,_,_}) ->
+		case cerl_clauses:match(P, any) of
+		    {true,_} -> true;
+		    _ -> false
+		end
+	end, Cs).
+
+
+%% case_opt_compiler_generated(Core) -> Core'
+%%  Mark Core expressions as compiler generated to ensure that
+%%  no warnings are generated if they turn out to be unused.
+%%  To pretty-printed Core Erlang easier to read, don't mark
+%%  constructs that can't cause warnings to be emitted.
+%%
+case_opt_compiler_generated(Core) ->
+    F = fun(C) ->
+		case cerl:type(C) of
+		    alias -> C;
+		    var -> C;
+		    _ -> cerl:set_ann(C, [compiler_generated])
+		end
+	end,
+    cerl_trees:map(F, Core).
+
+
+%% case_expand_var(Expr0, Sub) -> Expr
 %%  If Expr0 is a variable that has been previously matched and
 %%  is known to be a tuple, return the tuple instead. Otherwise
 %%  return Expr0 unchanged.
 %%
-maybe_replace_var(E, Sub) ->
-    case cerl:is_c_var(E) of
-	false -> E;
-	true -> maybe_replace_var_1(E, Sub)
-    end.
-
-maybe_replace_var_1(E, #sub{t=Tdb}) ->
-    case orddict:find(cerl:var_name(E), Tdb) of
-	{ok,T0} ->
+case_expand_var(E, #sub{t=Tdb}) ->
+    Key = cerl:var_name(E),
+    case Tdb of
+        #{Key:=T0} ->
 	    case cerl:is_c_tuple(T0) of
 		false ->
 		    E;
@@ -2091,9 +1789,8 @@ maybe_replace_var_1(E, #sub{t=Tdb}) ->
 		    %% operator will fail when used in map
 		    %% construction (only the '=>' operator is allowed
 		    %% when constructing a map from scratch).
-		    ToData = fun coerce_to_data/1,
 		    try
-			cerl_trees:map(ToData, T0)
+			cerl_trees:map(fun coerce_to_data/1, T0)
 		    catch
 			throw:impossible ->
 			    %% Something unsuitable was found (map or
@@ -2101,7 +1798,7 @@ maybe_replace_var_1(E, #sub{t=Tdb}) ->
 			    E
 		    end
 	    end;
-	error ->
+        _ ->
 	    E
     end.
 
@@ -2147,8 +1844,9 @@ case_opt_nomatch(_, [], _) -> [].
 %%  will match, and we can remove the corresponding pattern from
 %%  each clause.
 %%
-%%  The only complication is if the literal is a binary. Binary
-%%  pattern matching is tricky, so we will give up in that case.
+%%  The only complication is if the literal is a binary or map.
+%%  In general, it is difficult to know whether a binary or
+%%  map pattern will match, so we give up in that case.
 
 case_opt_lit(Lit, Cs0) ->
     try case_opt_lit_1(Lit, Cs0) of
@@ -2175,6 +1873,10 @@ case_opt_lit_1(E, [{[P|Ps],C,PsAcc,Bs0}|Cs]) ->
 case_opt_lit_1(_, []) -> [].
 
 %% case_opt_data(Expr, Clauses0, LitExpr) -> {ok,Exprs,Clauses}
+%%  The case expression is a non-atomic data constructor (cons
+%%  or tuple). We can know at compile time whether each clause
+%%  will match, and we can delay the building of the data to
+%%  the clauses where it is actually needed.
 
 case_opt_data(E, Cs0) ->
     Es = cerl:data_es(E),
@@ -2184,45 +1886,48 @@ case_opt_data(E, Cs0) ->
 	    {ok,Es,Cs}
     catch
 	throw:impossible ->
+	    %% The pattern contained a binary or map.
 	    {error,Cs0}
     end.
 
-case_opt_data_1([{[P|Ps0],C,PsAcc,Bs0}|Cs], Es, TypeSig) ->
-    {ok,Ps1,Bs1} = case_data_pat(P, TypeSig),
-    [{Ps1++Ps0,C,PsAcc,Bs1++Bs0}|
-     case_opt_data_1(Cs, Es, TypeSig)];
+case_opt_data_1([{[P0|Ps0],C,PsAcc,Bs0}|Cs], Es, TypeSig) ->
+    P = case_opt_compiler_generated(P0),
+    BindTo = #c_var{name=dummy},
+    {Ps1,[{BindTo,_}|Bs1]} = case_data_pat_alias(P, BindTo, TypeSig, []),
+    [{Ps1++Ps0,C,PsAcc,Bs1++Bs0}|case_opt_data_1(Cs, Es, TypeSig)];
 case_opt_data_1([], _, _) -> [].
 
-%% case_data_pat(Pattern, Type, Arity) -> {ok,[Pattern],[{AliasVar,Pat}]} | error.
-
-case_data_pat(P, TypeSig) ->
-    case cerl:is_data(P) of
-	false ->
-	    case_data_pat_var(P, TypeSig);
-	true ->
-	    {ok,cerl:data_es(P),[]}
-    end.
-
-%% case_data_pat_var(Pattern, {DataType,ArityType}) ->
-%%          {ok,[Pattern],[{AliasVar,Pat}]}
-
-case_data_pat_var(P, {Type,Arity}=TypeSig) ->
-    %% If the entire case statement is evaluated in an effect
-    %% context (e.g. "case {A,B} of ... end, ok"), there will
-    %% be a warning that a term is constructed but never used.
-    %% To avoid that warning, we must annotate the data
-    %% constructor as compiler generated.
-    Ann = [compiler_generated|cerl:get_ann(P)],
+case_data_pat_alias(P, BindTo0, TypeSig, Bs0) ->
     case cerl:type(P) of
-	var ->
-	    Vars = make_vars(cerl:get_ann(P), Arity),
-	    {ok,Vars,[{P,cerl:ann_make_data(Ann, Type, Vars)}]};
 	alias ->
-	    V = cerl:alias_var(P),
-	    Apat = cerl:alias_pat(P),
-	    {ok,Ps,Bs} = case_data_pat(Apat, TypeSig),
-	    {ok,Ps,[{V,cerl:ann_make_data(Ann, Type,
-					  pat_to_expr_list(Ps))}|Bs]}
+	    %% Recursively handle the pattern and bind to
+	    %% the alias variable.
+	    BindTo = cerl:alias_var(P),
+	    Apat0 = cerl:alias_pat(P),
+	    Ann = [compiler_generated],
+	    Apat = cerl:set_ann(Apat0, Ann),
+	    {Ps,Bs} = case_data_pat_alias(Apat, BindTo, TypeSig, Bs0),
+	    {Ps,[{BindTo0,BindTo}|Bs]};
+	var ->
+	    %% Here we will need to actually build the data and bind
+	    %% it to the variable.
+	    {Type,Arity} = TypeSig,
+	    Ann = [compiler_generated],
+	    Vars = make_vars(Ann, Arity),
+	    Data = cerl:ann_make_data(Ann, Type, Vars),
+	    Bs = [{BindTo0,P},{P,Data}|Bs0],
+	    {Vars,Bs};
+	_ ->
+	    %% Since case_opt_nomatch/3 has removed all clauses that
+	    %% cannot match, we KNOW that this clause must match and
+	    %% that the pattern must be a data constructor.
+	    %% Here we must build the data and bind it to the variable.
+	    {Type,_} = TypeSig,
+	    DataEs = cerl:data_es(P),
+	    Vars = pat_to_expr_list(DataEs),
+	    Ann = [compiler_generated],
+	    Data = cerl:ann_make_data(Ann, Type, Vars),
+	    {DataEs,[{BindTo0,Data}]}
     end.
 
 %% pat_to_expr(Pattern) -> Expression.
@@ -2269,58 +1974,130 @@ make_var_name() ->
     list_to_atom("fol"++integer_to_list(N)).
 
 letify(Bs, Body) ->
+    Ann = cerl:get_ann(Body),
     foldr(fun({V,Val}, B) ->
-		  letify(V, Val, B)
+		  cerl:ann_c_let(Ann, [V], Val, B)
 	  end, Body, Bs).
 
-letify(#c_var{name=Vname}=Var, Val, Body) ->
-    case core_lib:is_var_used(Vname, Body) of
-	true ->
-	    A = element(2, Body),
-	    #c_let{anno=A,vars=[Var],arg=Val,body=Body};
-	false -> Body
-    end.
+%% opt_not_in_let(Let) -> Cerl
+%%  Try to optimize away a 'not' operator in a 'let'.
 
-%% opt_case_in_let(LetExpr) -> LetExpr'
+-spec opt_not_in_let(cerl:c_let()) -> cerl:cerl().
 
-opt_case_in_let(#c_let{vars=Vs,arg=Arg,body=B}=Let, Sub) ->
-    opt_case_in_let_0(Vs, Arg, B, Let, Sub).
-
-opt_case_in_let_0([#c_var{name=V}], Arg,
-		  #c_case{arg=#c_var{name=V},clauses=Cs}=Case, Let, Sub) ->
-    case opt_case_in_let_1(V, Arg, Cs) of
-	impossible ->
-	    case is_simple_case_arg(Arg) andalso
-		not core_lib:is_var_used(V, Case#c_case{arg=#c_literal{val=nil}}) of
-		true ->
-		    expr(opt_bool_case(Case#c_case{arg=Arg,clauses=Cs}), sub_new(Sub));
-		false ->
-		    Let
+opt_not_in_let(#c_let{vars=[_]=Vs0,arg=Arg0,body=Body0}=Let) ->
+    case opt_not_in_let(Vs0, Arg0, Body0) of
+	{[],#c_values{es=[]},Body} ->
+	    Body;
+	{Vs,Arg,Body} ->
+	    Let#c_let{vars=Vs,arg=Arg,body=Body}
+    end;
+opt_not_in_let(Let) -> Let.
+
+%% opt_not_in_let(Vs, Arg, Body) -> {Vs',Arg',Body'}
+%%  Try to optimize away a 'not' operator in a 'let'.
+
+-spec opt_not_in_let([cerl:c_var()], cerl:cerl(), cerl:cerl()) ->
+			    {[cerl:c_var()],cerl:cerl(),cerl:cerl()}.
+
+opt_not_in_let([#c_var{name=V}]=Vs0, Arg0, Body0) ->
+    case cerl:type(Body0) of
+	call ->
+	    %% let <V> = Expr in not V  ==>
+	    %%    let <> = <> in notExpr
+	    case opt_not_in_let_1(V, Body0, Arg0) of
+		no ->
+		    {Vs0,Arg0,Body0};
+		{yes,Body} ->
+		    {[],#c_values{es=[]},Body}
+	    end;
+	'let' ->
+	    %% let <V> = Expr in let <Var> = not V in Body  ==>
+	    %%    let <Var> = notExpr in Body
+	    %% V must not be used in Body.
+	    LetArg = cerl:let_arg(Body0),
+	    case opt_not_in_let_1(V, LetArg, Arg0) of
+		no ->
+		    {Vs0,Arg0,Body0};
+		{yes,Arg} ->
+		    LetBody = cerl:let_body(Body0),
+		    case core_lib:is_var_used(V, LetBody) of
+			true ->
+			    {Vs0,Arg0,Body0};
+			false ->
+			    LetVars = cerl:let_vars(Body0),
+			    {LetVars,Arg,LetBody}
+		    end
 	    end;
-	Expr -> Expr
+	_ ->
+	    {Vs0,Arg0,Body0}
     end;
-opt_case_in_let_0(_, _, _, Let, _) -> Let.
+opt_not_in_let(Vs, Arg, Body) ->
+    {Vs,Arg,Body}.
 
-opt_case_in_let_1(V, Arg, Cs) ->
-    try
-	opt_case_in_let_2(V, Arg, Cs)
-    catch
-	_:_ -> impossible
+opt_not_in_let_1(V, Call, Body) ->
+    case Call of
+	#c_call{module=#c_literal{val=erlang},
+		name=#c_literal{val='not'},
+		args=[#c_var{name=V}]} ->
+	    opt_not_in_let_2(Body);
+	_ ->
+	    no
     end.
 
-opt_case_in_let_2(V, Arg0,
-		  [#c_clause{pats=[#c_tuple{es=Es}],
-			     guard=#c_literal{val=true},body=B}|_]) ->
-
-    %%  In {V1,V2,...} = case E of P -> ... {Val1,Val2,...}; ... end.
-    %%  avoid building tuples, by converting tuples to multiple values.
-    %%  (The optimisation is not done if the built tuple is used or returned.)
-
-    true = all(fun (#c_var{}) -> true;
-		   (_) -> false end, Es),	%Only variables in tuple
-    false = core_lib:is_var_used(V, B),		%Built tuple must not be used.
-    Arg1 = tuple_to_values(Arg0, length(Es)),	%Might fail.
-    #c_let{vars=Es,arg=Arg1,body=B}.
+opt_not_in_let_2(#c_case{clauses=Cs0}=Case) ->
+    Vars = make_vars([], 1),
+    Body = #c_call{module=#c_literal{val=erlang},
+		   name=#c_literal{val='not'},
+		   args=Vars},
+    Cs = [begin
+	      Let = #c_let{vars=Vars,arg=B,body=Body},
+	      C#c_clause{body=opt_not_in_let(Let)}
+	  end || #c_clause{body=B}=C <- Cs0],
+    {yes,Case#c_case{clauses=Cs}};
+opt_not_in_let_2(#c_call{}=Call0) ->
+    invert_call(Call0);
+opt_not_in_let_2(_) -> no.
+
+invert_call(#c_call{module=#c_literal{val=erlang},
+		    name=#c_literal{val=Name0},
+		    args=[_,_]}=Call) ->
+    case inverse_rel_op(Name0) of
+	no -> no;
+	Name -> {yes,Call#c_call{name=#c_literal{val=Name}}}
+    end;
+invert_call(#c_call{}) -> no.
+
+%% inverse_rel_op(Op) -> no | RevOp
+
+inverse_rel_op('=:=') -> '=/=';
+inverse_rel_op('=/=') -> '=:=';
+inverse_rel_op('==') -> '/=';
+inverse_rel_op('/=') -> '==';
+inverse_rel_op('>') -> '=<';
+inverse_rel_op('<') -> '>=';
+inverse_rel_op('>=') -> '<';
+inverse_rel_op('=<') -> '>';
+inverse_rel_op(_) -> no.
+
+
+%% opt_bool_case_in_let(LetExpr, Sub) -> Core
+
+opt_bool_case_in_let(#c_let{vars=Vs,arg=Arg,body=B}=Let, Sub) ->
+    opt_case_in_let_1(Vs, Arg, B, Let, Sub).
+
+opt_case_in_let_1([#c_var{name=V}], Arg,
+		  #c_case{arg=#c_var{name=V}}=Case0, Let, Sub) ->
+    case is_simple_case_arg(Arg) of
+	true ->
+	    Case = opt_bool_case(Case0#c_case{arg=Arg}),
+	    case core_lib:is_var_used(V, Case) of
+		false -> expr(Case, sub_new(Sub));
+		true -> Let
+	    end;
+	false ->
+	    Let
+    end;
+opt_case_in_let_1(_, _, _, Let, _) -> Let.
 
 %% is_simple_case_arg(Expr) -> true|false
 %%  Determine whether the Expr is simple enough to be worth
@@ -2362,18 +2139,15 @@ is_bool_expr(#c_clause{body=B}, Sub) ->
     is_bool_expr(B, Sub);
 is_bool_expr(#c_let{vars=[V],arg=Arg,body=B}, Sub0) ->
     Sub = case is_bool_expr(Arg, Sub0) of
-	      true -> update_types(V, [#c_literal{val=true}], Sub0);
+	      true -> update_types(V, [bool], Sub0);
 	      false -> Sub0
 	  end,
     is_bool_expr(B, Sub);
 is_bool_expr(#c_let{body=B}, Sub) ->
     %% Binding of multiple variables.
     is_bool_expr(B, Sub);
-is_bool_expr(#c_literal{val=Bool}, _) when is_boolean(Bool) ->
-    true;
-is_bool_expr(#c_var{name=V}, Sub) ->
-    is_boolean_type(V, Sub);
-is_bool_expr(_, _) -> false.
+is_bool_expr(C, Sub) ->
+    is_boolean_type(C, Sub) =:= yes.
 
 is_bool_expr_list([C|Cs], Sub) ->
     is_bool_expr(C, Sub) andalso is_bool_expr_list(Cs, Sub);
@@ -2386,7 +2160,7 @@ is_bool_expr_list([], _) -> true.
 %%  functions, or is_record/2).
 %%
 is_safe_bool_expr(Core, Sub) ->
-    is_safe_bool_expr_1(Core, Sub, gb_sets:empty()).
+    is_safe_bool_expr_1(Core, Sub, cerl_sets:new()).
 
 is_safe_bool_expr_1(#c_call{module=#c_literal{val=erlang},
                             name=#c_literal{val=is_record},
@@ -2432,7 +2206,7 @@ is_safe_bool_expr_1(#c_let{vars=Vars,arg=Arg,body=B}, Sub, BoolVars) ->
 	true ->
 	    case {is_safe_bool_expr_1(Arg, Sub, BoolVars),Vars} of
 		{true,[#c_var{name=V}]} ->
-		    is_safe_bool_expr_1(B, Sub, gb_sets:add(V, BoolVars));
+		    is_safe_bool_expr_1(B, Sub, cerl_sets:add_element(V, BoolVars));
 		{false,_} ->
 		    is_safe_bool_expr_1(B, Sub, BoolVars)
 	    end;
@@ -2441,7 +2215,7 @@ is_safe_bool_expr_1(#c_let{vars=Vars,arg=Arg,body=B}, Sub, BoolVars) ->
 is_safe_bool_expr_1(#c_literal{val=Val}, _Sub, _) ->
     is_boolean(Val);
 is_safe_bool_expr_1(#c_var{name=V}, _Sub, BoolVars) ->
-    gb_sets:is_element(V, BoolVars);
+    cerl_sets:is_element(V, BoolVars);
 is_safe_bool_expr_1(_, _, _) -> false.
 
 is_safe_bool_expr_list([C|Cs], Sub, BoolVars) ->
@@ -2451,38 +2225,6 @@ is_safe_bool_expr_list([C|Cs], Sub, BoolVars) ->
     end;
 is_safe_bool_expr_list([], _, _) -> true.
 
-%% tuple_to_values(Expr, TupleArity) -> Expr'
-%%  Convert tuples in return position of arity TupleArity to values.
-%%  Throws an exception for constructs that are not handled.
-
-tuple_to_values(#c_tuple{es=Es}, Arity) when length(Es) =:= Arity ->
-    core_lib:make_values(Es);
-tuple_to_values(#c_literal{val=Tuple}=Lit, Arity) when tuple_size(Tuple) =:= Arity ->
-    Es = [Lit#c_literal{val=E} || E <- tuple_to_list(Tuple)],
-    core_lib:make_values(Es);
-tuple_to_values(#c_case{clauses=Cs0}=Case, Arity) ->
-    Cs1 = [tuple_to_values(E, Arity) || E <- Cs0],
-    Case#c_case{clauses=Cs1};
-tuple_to_values(#c_seq{body=B0}=Seq, Arity) ->
-    Seq#c_seq{body=tuple_to_values(B0, Arity)};
-tuple_to_values(#c_let{body=B0}=Let, Arity) ->
-    Let#c_let{body=tuple_to_values(B0, Arity)};
-tuple_to_values(#c_receive{clauses=Cs0,timeout=Timeout,action=A0}=Rec, Arity) ->
-    Cs = [tuple_to_values(E, Arity) || E <- Cs0],
-    A = case Timeout of
-	    #c_literal{val=infinity} -> A0;
-	    _ -> tuple_to_values(A0, Arity)
-	end,
-    Rec#c_receive{clauses=Cs,action=A};
-tuple_to_values(#c_clause{body=B0}=Clause, Arity) ->
-    B = tuple_to_values(B0, Arity),
-    Clause#c_clause{body=B};
-tuple_to_values(Expr, _) ->
-    case will_fail(Expr) of
-	true -> Expr;
-	false -> erlang:error({not_handled,Expr})
-    end.
-
 %% simplify_let(Let, Sub) -> Expr | impossible
 %%  If the argument part of an let contains a complex expression, such
 %%  as a let or a sequence, move the original let body into the complex
@@ -2507,9 +2249,9 @@ move_let_into_expr(#c_let{vars=InnerVs0,body=InnerBody0}=Inner,
     %%    in <InnerBody>
     %%
     Arg = body(Arg0, Sub0),
-    ScopeSub0 = sub_subst_scope(Sub0#sub{t=[]}),
+    ScopeSub0 = sub_subst_scope(Sub0#sub{t=#{}}),
     {OuterVs,ScopeSub} = pattern_list(OuterVs0, ScopeSub0),
-    
+
     OuterBody = body(OuterBody0, ScopeSub),
 
     {InnerVs,Sub} = pattern_list(InnerVs0, Sub0),
@@ -2546,15 +2288,15 @@ move_let_into_expr(#c_let{vars=Lvs0,body=Lbody0}=Let,
 	    CaVars0 = Ca0#c_clause.pats,
 	    G0 = Ca0#c_clause.guard,
 	    B0 = Ca0#c_clause.body,
-	    ScopeSub0 = sub_subst_scope(Sub0#sub{t=[]}),
+	    ScopeSub0 = sub_subst_scope(Sub0#sub{t=#{}}),
 	    {CaVars,ScopeSub} = pattern_list(CaVars0, ScopeSub0),
 	    G = guard(G0, ScopeSub),
 
 	    B1 = body(B0, ScopeSub),
 
 	    {Lvs,B2,Sub1} = let_substs(Lvs0, B1, Sub0),
-	    Sub2 = Sub1#sub{s=gb_sets:union(ScopeSub#sub.s,
-					    Sub1#sub.s)},
+	    Sub2 = Sub1#sub{s=cerl_sets:union(ScopeSub#sub.s,
+                                              Sub1#sub.s)},
 	    Lbody = body(Lbody0, Sub2),
 	    B = Let#c_let{vars=Lvs,arg=core_lib:make_values(B2),body=Lbody},
 
@@ -2587,88 +2329,257 @@ move_let_into_expr(_Let, _Expr, _Sub) -> impossible.
 is_failing_clause(#c_clause{body=B}) ->
     will_fail(B).
 
-scope_add(Vs, #sub{s=Scope0}=Sub) ->
-    Scope = foldl(fun(V, S) when is_integer(V); is_atom(V) ->
-			  gb_sets:add(V, S)
-		  end, Scope0, Vs),
-    Sub#sub{s=Scope}.
+%% opt_case_in_let(Let) -> Let'
+%%  Try to avoid building tuples that are immediately matched.
+%%  A common pattern is:
+%%
+%%      {V1,V2,...} = case E of P -> ... {Val1,Val2,...}; ... end
+%%
+%%  In Core Erlang the pattern would look like this:
+%%
+%%   let <V> = case E of
+%%             	 ... -> ... {Val1,Val2}
+%%   	         ...
+%%   	       end,
+%%   in case V of
+%%   	{A,B} -> ... <use A and B> ...
+%%   end
+%%
+%%  Rewrite this to:
+%%
+%%   let <V1,V2> = case E of
+%%             	 ... -> ... <Val1,Val2>
+%%   	         ...
+%%   	       end,
+%%   in
+%%      let <V> = {V1,V2}
+%%      in case V of
+%%   	    {A,B} -> ... <use A and B> ...
+%%        end
+%%
+%%  Note that the second 'case' is unchanged. The other optimizations
+%%  in this module will eliminate the building of the tuple and
+%%  rewrite the second case to:
+%%
+%%   case <V1,V2> of
+%%    <A,B> -> ... <use A and B> ...
+%%   end
+%%
+
+opt_case_in_let(#c_let{vars=Vs,arg=Arg0,body=B}=Let0) ->
+    case matches_data(Vs, B) of
+	{yes,TypeSig} ->
+	    case delay_build(Arg0, TypeSig) of
+		no ->
+		    Let0;
+		{yes,Vars,Arg,Data} ->
+		    InnerLet = Let0#c_let{arg=Data},
+		    Let0#c_let{vars=Vars,arg=Arg,body=InnerLet}
+	    end;
+	no ->
+	    Let0
+    end.
+
+matches_data([#c_var{name=V}], #c_case{arg=#c_var{name=V},
+				       clauses=[#c_clause{pats=[P]}|_]}) ->
+    case cerl:is_data(P) of
+	false ->
+	    no;
+	true ->
+	    case cerl:data_type(P) of
+		{atomic,_} ->
+		    no;
+		Type ->
+		    {yes,{Type,cerl:data_arity(P)}}
+	    end
+    end;
+matches_data(_, _) -> no.
+
+delay_build(Core, TypeSig) ->
+    case cerl:is_data(Core) of
+	true -> no;
+	false -> delay_build_1(Core, TypeSig)
+    end.
+
+delay_build_1(Core0, TypeSig) ->
+    try delay_build_expr(Core0, TypeSig) of
+	Core ->
+	    {Type,Arity} = TypeSig,
+	    Ann = [compiler_generated],
+	    Vars = make_vars(Ann, Arity),
+	    Data = cerl:ann_make_data(Ann, Type, Vars),
+	    {yes,Vars,Core,Data}
+    catch
+	throw:impossible ->
+	    no
+    end.
+
+delay_build_cs([#c_clause{body=B0}=C0|Cs], TypeSig) ->
+    B = delay_build_expr(B0, TypeSig),
+    C = C0#c_clause{body=B},
+    [C|delay_build_cs(Cs, TypeSig)];
+delay_build_cs([], _) -> [].
+
+delay_build_expr(Core, {Type,Arity}=TypeSig) ->
+    case cerl:is_data(Core) of
+	false ->
+	    delay_build_expr_1(Core, TypeSig);
+	true ->
+	    case {cerl:data_type(Core),cerl:data_arity(Core)} of
+		{Type,Arity} ->
+		    core_lib:make_values(cerl:data_es(Core));
+		{_,_} ->
+		    throw(impossible)
+	    end
+    end.
+
+delay_build_expr_1(#c_case{clauses=Cs0}=Case, TypeSig) ->
+    Cs = delay_build_cs(Cs0, TypeSig),
+    Case#c_case{clauses=Cs};
+delay_build_expr_1(#c_let{body=B0}=Let, TypeSig) ->
+    B = delay_build_expr(B0, TypeSig),
+    Let#c_let{body=B};
+delay_build_expr_1(#c_receive{clauses=Cs0,
+			      timeout=Timeout,
+			      action=A0}=Rec, TypeSig) ->
+    Cs = delay_build_cs(Cs0, TypeSig),
+    A = case Timeout of
+	    #c_literal{val=infinity} -> A0;
+	    _ -> delay_build_expr(A0, TypeSig)
+	end,
+    Rec#c_receive{clauses=Cs,action=A};
+delay_build_expr_1(#c_seq{body=B0}=Seq, TypeSig) ->
+    B = delay_build_expr(B0, TypeSig),
+    Seq#c_seq{body=B};
+delay_build_expr_1(Core, _TypeSig) ->
+    case will_fail(Core) of
+	true -> Core;
+	false -> throw(impossible)
+    end.
 
 %% opt_simple_let(#c_let{}, Context, Sub) -> CoreTerm
 %%  Optimize a let construct that does not contain any lets in
 %%  in its argument.
 
-opt_simple_let(#c_let{arg=Arg0}=Let, Ctxt, Sub0) ->
-    Arg = body(Arg0, value, Sub0),		%This is a body
+opt_simple_let(Let0, Ctxt, Sub) ->
+    case opt_not_in_let(Let0) of
+	#c_let{}=Let ->
+	    opt_simple_let_0(Let, Ctxt, Sub);
+	Expr ->
+	    expr(Expr, Ctxt, Sub)
+    end.
+
+opt_simple_let_0(#c_let{arg=Arg0}=Let, Ctxt, Sub) ->
+    Arg = body(Arg0, value, Sub),		%This is a body
     case will_fail(Arg) of
 	true -> Arg;
-	false -> opt_simple_let_1(Let, Arg, Ctxt, Sub0)
+	false -> opt_simple_let_1(Let, Arg, Ctxt, Sub)
     end.
 
 opt_simple_let_1(#c_let{vars=Vs0,body=B0}=Let, Arg0, Ctxt, Sub0) ->
     %% Optimise let and add new substitutions.
-    {Vs,Args,Sub1} = let_substs(Vs0, Arg0, Sub0),
-    BodySub = case {Vs,Args} of
-		  {[V],[A]} ->
-		      case is_bool_expr(A, Sub0) of
-			  true ->
-			      update_types(V, [#c_literal{val=true}], Sub1);
-			  false ->
-			      Sub1
-		      end;
-		  {_,_} -> Sub1
-	      end,
-    B = body(B0, Ctxt, BodySub),
-    Arg = core_lib:make_values(Args),
-    opt_simple_let_2(Let, Vs, Arg, B, Ctxt, Sub1).
-
-opt_simple_let_2(Let0, Vs0, Arg0, Body0, effect, Sub) ->
-    case {Vs0,Arg0,Body0} of
-	{[],#c_values{es=[]},Body} ->
-	    %% No variables left (because of substitutions).
-	    Body;
-	{[_|_],Arg,#c_literal{}} ->
-	    %% The body is a literal. That means that we can ignore
-	    %% it and that the return value is Arg revisited in
-	    %% effect context.
-	    body(Arg, effect, sub_new_preserve_types(Sub));
-	{Vs,Arg,Body} ->
-	    %% Since we are in effect context, there is a chance
-	    %% that the body no longer references the variables.
-	    %% In that case we can construct a sequence and visit
-	    %% that in effect context:
-	    %%   let <Var> = Arg in BodyWithoutVar  ==> seq Arg BodyWithoutVar
-	    case is_any_var_used(Vs, Body) of
-		false ->
-		    expr(#c_seq{arg=Arg,body=Body}, effect, sub_new_preserve_types(Sub));
-		true ->
-		    Let = Let0#c_let{vars=Vs,arg=Arg,body=Body},
-		    opt_case_in_let_arg(opt_case_in_let(Let, Sub), effect, Sub)
-	    end
-    end;
-opt_simple_let_2(Let, Vs0, Arg0, Body, value, Sub) ->
+    {Vs1,Args,Sub1} = let_substs(Vs0, Arg0, Sub0),
+    BodySub = update_let_types(Vs1, Args, Sub1),
+    B1 = body(B0, Ctxt, BodySub),
+    Arg1 = core_lib:make_values(Args),
+    {Vs,Arg,B} = opt_not_in_let(Vs1, Arg1, B1),
+    opt_simple_let_2(Let, Vs, Arg, B, B0, Ctxt, Sub1).
+
+opt_simple_let_2(Let0, Vs0, Arg0, Body, PrevBody, Ctxt, Sub) ->
     case {Vs0,Arg0,Body} of
-	{[#c_var{name=N1}],Arg,#c_var{name=N2}} ->
+	{[#c_var{name=N1}],Arg1,#c_var{name=N2}} ->
 	    case N1 =:= N2 of
 		true ->
 		    %% let <Var> = Arg in <Var>  ==>  Arg
-		    Arg;
+		    Arg1;
 		false ->
 		    %% let <Var> = Arg in <OtherVar>  ==>  seq Arg OtherVar
-		    expr(#c_seq{arg=Arg,body=Body}, value, sub_new_preserve_types(Sub))
+		    Arg = maybe_suppress_warnings(Arg1, Vs0, PrevBody),
+		    expr(#c_seq{arg=Arg,body=Body}, Ctxt,
+			 sub_new_preserve_types(Sub))
 	    end;
 	{[],#c_values{es=[]},_} ->
 	    %% No variables left.
 	    Body;
-	{_,Arg,#c_literal{}} ->
-	    %% The variable is not used in the body. The argument
-	    %% can be evaluated in effect context to simplify it.
-	    expr(#c_seq{arg=Arg,body=Body}, value, sub_new_preserve_types(Sub));
-	{Vs,Arg,Body} ->
-	    opt_case_in_let_arg(
-	      opt_case_in_let(Let#c_let{vars=Vs,arg=Arg,body=Body}, Sub),
-	      value, Sub)
+	{Vs,Arg1,#c_literal{}} ->
+	    Arg = maybe_suppress_warnings(Arg1, Vs, PrevBody),
+	    E = case Ctxt of
+		    effect ->
+			%% Throw away the literal body.
+			Arg;
+		    value ->
+			%% Since the variable is not used in the body, we
+			%% can rewrite the let to a sequence.
+			%%  let <Var> = Arg in Literal ==> seq Arg Literal
+			#c_seq{arg=Arg,body=Body}
+		end,
+	    expr(E, Ctxt, sub_new_preserve_types(Sub));
+	{Vs,Arg1,Body} ->
+	    %% If none of the variables are used in the body, we can
+	    %% rewrite the let to a sequence:
+	    %%    let <Var> = Arg in BodyWithoutVar ==>
+	    %%        seq Arg BodyWithoutVar
+	    case is_any_var_used(Vs, Body) of
+		false ->
+		    Arg = maybe_suppress_warnings(Arg1, Vs, PrevBody),
+		    expr(#c_seq{arg=Arg,body=Body}, Ctxt,
+			 sub_new_preserve_types(Sub));
+		true ->
+		    Let1 = Let0#c_let{vars=Vs,arg=Arg1,body=Body},
+		    Let2 = opt_bool_case_in_let(Let1, Sub),
+		    opt_case_in_let_arg(Let2, Ctxt, Sub)
+	    end
     end.
 
+%% maybe_suppress_warnings(Arg, [#c_var{}], PreviousBody) -> Arg'
+%%  Try to suppress false warnings when a variable is not used.
+%%  For instance, we don't expect a warning for useless building in:
+%%
+%%    R = #r{},  %No warning expected.
+%%    R#r.f      %Optimization would remove the reference to R.
+%%
+%%  To avoid false warnings, we will check whether the variables were
+%%  referenced in the original unoptimized code. If they were, we will
+%%  consider the warning false and suppress it.
+
+maybe_suppress_warnings(Arg, Vs, PrevBody) ->
+    case should_suppress_warning(Arg) of
+	true ->
+	    Arg;				%Already suppressed.
+	false ->
+	    case is_any_var_used(Vs, PrevBody) of
+		true ->
+		    suppress_warning([Arg]);
+		false ->
+		    Arg
+	    end
+    end.
+
+%% Suppress warnings for a Core Erlang expression whose value will
+%% be ignored.
+suppress_warning([H|T]) ->
+    case cerl:is_literal(H) of
+	true ->
+	    suppress_warning(T);
+	false ->
+	    case cerl:is_data(H) of
+		true ->
+		    suppress_warning(cerl:data_es(H) ++ T);
+		false ->
+		    %% Some other thing, such as a function call.
+		    %% This cannot be the compiler's fault, so the
+		    %% warning should not be suppressed. We must
+		    %% be careful not to destroy tail-recursion.
+		    case T of
+			[] ->
+			    H;
+			[_|_] ->
+			    cerl:c_seq(H, suppress_warning(T))
+		    end
+	    end
+    end;
+suppress_warning([]) -> void().
+
 move_case_into_arg(#c_case{arg=#c_let{vars=OuterVars0,arg=OuterArg,
                                       body=InnerArg0}=Outer,
                            clauses=InnerClauses}=Inner, Sub) ->
@@ -2682,7 +2593,7 @@ move_case_into_arg(#c_case{arg=#c_let{vars=OuterVars0,arg=OuterArg,
     %% let <OuterVars> = <OuterArg>
     %% in case <InnerArg> of <InnerClauses> end
     %%
-    ScopeSub0 = sub_subst_scope(Sub#sub{t=[]}),
+    ScopeSub0 = sub_subst_scope(Sub#sub{t=#{}}),
     {OuterVars,ScopeSub} = pattern_list(OuterVars0, ScopeSub0),
     InnerArg = body(InnerArg0, ScopeSub),
     Outer#c_let{vars=OuterVars,arg=OuterArg,
@@ -2711,7 +2622,7 @@ move_case_into_arg(#c_case{arg=#c_case{arg=OuterArg,
             %%     <OuterCb>
             %% end
             %%
-            ScopeSub0 = sub_subst_scope(Sub#sub{t=[]}),
+            ScopeSub0 = sub_subst_scope(Sub#sub{t=#{}}),
             {OuterPats,ScopeSub} = pattern_list(OuterPats0, ScopeSub0),
             OuterGuard = guard(OuterGuard0, ScopeSub),
             InnerArg = body(InnerArg0, ScopeSub),
@@ -2756,7 +2667,7 @@ move_case_into_arg(_, _) ->
 %%         <> when 'true' ->
 %%              let <Var> = Literal2 in LetBody
 %%    end
-%%    
+%%
 %% In the worst case, the size of the code could increase.
 %% In practice, though, substituting the literals into
 %% LetBody and doing constant folding will decrease the code
@@ -2789,14 +2700,114 @@ is_any_var_used([#c_var{name=V}|Vs], Expr) ->
     end;
 is_any_var_used([], _) -> false.
 
-is_boolean_type(V, #sub{t=Tdb}) ->
-    case orddict:find(V, Tdb) of
-	{ok,bool} -> true;
-	_ -> false
+%%%
+%%% Retrieving information about types.
+%%%
+
+-spec get_type(cerl:cerl(), #sub{}) -> type_info() | 'none'.
+
+get_type(#c_var{name=V}, #sub{t=Tdb}) ->
+    case Tdb of
+        #{V:=Type} -> Type;
+        _ -> none
+    end;
+get_type(C, _) ->
+    case cerl:type(C) of
+	binary -> C;
+	map -> C;
+	_ ->
+	    case cerl:is_data(C) of
+		true -> C;
+		false -> none
+	    end
+    end.
+
+-spec is_boolean_type(cerl:cerl(), sub()) -> yes_no_maybe().
+
+is_boolean_type(Var, Sub) ->
+    case get_type(Var, Sub) of
+	none ->
+	    maybe;
+	bool ->
+	    yes;
+	C ->
+	    B = cerl:is_c_atom(C) andalso
+		is_boolean(cerl:atom_val(C)),
+	    yes_no(B)
     end.
 
+-spec is_int_type(cerl:cerl(), sub()) -> yes_no_maybe().
+
+is_int_type(Var, Sub) ->
+    case get_type(Var, Sub) of
+	none -> maybe;
+	integer -> yes;
+	C -> yes_no(cerl:is_c_int(C))
+    end.
+
+-spec is_tuple_type(cerl:cerl(), sub()) -> yes_no_maybe().
+
+is_tuple_type(Var, Sub) ->
+    case get_type(Var, Sub) of
+	none -> maybe;
+	C -> yes_no(cerl:is_c_tuple(C))
+    end.
+
+yes_no(true) -> yes;
+yes_no(false) -> no.
+
+%%%
+%%% Update type information.
+%%%
+
+update_let_types(Vs, Args, Sub) when is_list(Args) ->
+    update_let_types_1(Vs, Args, Sub);
+update_let_types(_Vs, _Arg, Sub) ->
+    %% The argument is a complex expression (such as a 'case')
+    %% that returns multiple values.
+    Sub.
+
+update_let_types_1([#c_var{}=V|Vs], [A|As], Sub0) ->
+    Sub = update_types_from_expr(V, A, Sub0),
+    update_let_types_1(Vs, As, Sub);
+update_let_types_1([], [], Sub) -> Sub.
+
+update_types_from_expr(V, Expr, Sub) ->
+    Type = extract_type(Expr, Sub),
+    update_types(V, [Type], Sub).
+
+extract_type(#c_call{module=#c_literal{val=erlang},
+		     name=#c_literal{val=Name},
+		     args=Args}=Call, Sub) ->
+    case returns_integer(Name, Args) of
+	true -> integer;
+	false -> extract_type_1(Call, Sub)
+    end;
+extract_type(Expr, Sub) ->
+    extract_type_1(Expr, Sub).
+
+extract_type_1(Expr, Sub) ->
+    case is_bool_expr(Expr, Sub) of
+	false -> Expr;
+	true -> bool
+    end.
+
+returns_integer(bit_size, [_]) -> true;
+returns_integer('bsl', [_,_]) -> true;
+returns_integer('bsr', [_,_]) -> true;
+returns_integer(byte_size, [_]) -> true;
+returns_integer(length, [_]) -> true;
+returns_integer('rem', [_,_]) -> true;
+returns_integer(size, [_]) -> true;
+returns_integer(tuple_size, [_]) -> true;
+returns_integer(trunc, [_]) -> true;
+returns_integer(_, _) -> false.
+
 %% update_types(Expr, Pattern, Sub) -> Sub'
 %%  Update the type database.
+
+-spec update_types(cerl:cerl(), [type_info()], sub()) -> sub().
+
 update_types(Expr, Pat, #sub{t=Tdb0}=Sub) ->
     Tdb = update_types_1(Expr, Pat, Tdb0),
     Sub#sub{t=Tdb}.
@@ -2813,33 +2824,38 @@ update_types_1(#c_var{name=V,anno=Anno}, Pat, Types) ->
 update_types_1(_, _, Types) -> Types.
 
 update_types_2(V, [#c_tuple{}=P], Types) ->
-    orddict:store(V, P, Types);
+    Types#{V=>P};
 update_types_2(V, [#c_literal{val=Bool}], Types) when is_boolean(Bool) ->
-    orddict:store(V, bool, Types);
+    Types#{V=>bool};
+update_types_2(V, [Type], Types) when is_atom(Type) ->
+    Types#{V=>Type};
 update_types_2(_, _, Types) -> Types.
 
 %% kill_types(V, Tdb) -> Tdb'
 %%  Kill any entries that references the variable,
 %%  either in the key or in the value.
 
-kill_types(V, [{V,_}|Tdb]) ->
-    kill_types(V, Tdb);
-kill_types(V, [{_,#c_tuple{}=Tuple}=Entry|Tdb]) ->
+kill_types(V, Tdb) ->
+    maps:from_list(kill_types2(V,maps:to_list(Tdb))).
+
+kill_types2(V, [{V,_}|Tdb]) ->
+    kill_types2(V, Tdb);
+kill_types2(V, [{_,#c_tuple{}=Tuple}=Entry|Tdb]) ->
     case core_lib:is_var_used(V, Tuple) of
-	false -> [Entry|kill_types(V, Tdb)];
-	true -> kill_types(V, Tdb)
+	false -> [Entry|kill_types2(V, Tdb)];
+	true -> kill_types2(V, Tdb)
     end;
-kill_types(V, [{_,Atom}=Entry|Tdb]) when is_atom(Atom) ->
-    [Entry|kill_types(V, Tdb)];
-kill_types(_, []) -> [].
+kill_types2(V, [{_,Atom}=Entry|Tdb]) when is_atom(Atom) ->
+    [Entry|kill_types2(V, Tdb)];
+kill_types2(_, []) -> [].
 
 %% copy_type(DestVar, SrcVar, Tdb) -> Tdb'
 %%  If the SrcVar has a type, assign it to DestVar.
 %%
 copy_type(V, #c_var{name=Src}, Tdb) ->
-    case orddict:find(Src, Tdb) of
-	{ok,Type} -> orddict:store(V, Type, Tdb);
-	error -> Tdb
+    case Tdb of
+        #{Src:=Type} -> Tdb#{V=>Type};
+        _ -> Tdb
     end;
 copy_type(_, _, Tdb) -> Tdb.
 
@@ -3082,7 +3098,7 @@ bsm_ensure_no_partition_after([#c_clause{pats=Ps}|Cs], Pos) ->
 	    bsm_problem(P, bin_partition)
     end;
 bsm_ensure_no_partition_after([], _) -> ok.
-    
+
 bsm_could_match_binary(#c_alias{pat=P}) -> bsm_could_match_binary(P);
 bsm_could_match_binary(#c_cons{}) -> false;
 bsm_could_match_binary(#c_tuple{}) -> false;
@@ -3116,11 +3132,11 @@ add_bin_opt_info(Core, Term) ->
     end.
 
 add_warning(Core, Term) ->
-    case is_compiler_generated(Core) of
+    case should_suppress_warning(Core) of
 	true ->
 	    ok;
 	false ->
-	    Anno = core_lib:get_anno(Core),
+	    Anno = cerl:get_ann(Core),
 	    Line = get_line(Anno),
 	    File = get_file(Anno),
 	    Key = {?MODULE,warnings},
@@ -3141,9 +3157,17 @@ get_file([{file,File}|_]) -> File;
 get_file([_|T]) -> get_file(T);
 get_file([]) -> "no_file". % should not happen
 
+should_suppress_warning(Core) ->
+    is_compiler_generated(Core) orelse
+	is_result_unwanted(Core).
+
 is_compiler_generated(Core) ->
-    Anno = core_lib:get_anno(Core),
-    member(compiler_generated, Anno).
+    Ann = cerl:get_ann(Core),
+    member(compiler_generated, Ann).
+
+is_result_unwanted(Core) ->
+    Ann = cerl:get_ann(Core),
+    member(result_not_wanted, Ann).
 
 get_warnings() ->
     ordsets:from_list((erase({?MODULE,warnings}))).
@@ -3235,12 +3259,12 @@ format_error(bin_var_used_in_guard) ->
 verify_scope(E, #sub{s=Scope}) ->
     Free0 = cerl_trees:free_variables(E),
     Free = [V || V <- Free0, not is_tuple(V)],	%Ignore function names.
-    case ordsets:is_subset(Free, gb_sets:to_list(Scope)) of
+    case ordsets:is_subset(Free, cerl_sets:to_list(Scope)) of
 	true -> true;
 	false ->
 	    io:format("~p\n", [E]),
 	    io:format("~p\n", [Free]),
-	    io:format("~p\n", [gb_sets:to_list(Scope)]),
+	    io:format("~p\n", [cerl_sets:to_list(Scope)]),
 	    false
     end.
 -endif.
diff --git a/lib/compiler/src/sys_core_fold_lists.erl b/lib/compiler/src/sys_core_fold_lists.erl
new file mode 100644
index 0000000000..49dc59052a
--- /dev/null
+++ b/lib/compiler/src/sys_core_fold_lists.erl
@@ -0,0 +1,386 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%% Purpose : Inline high order lists functions from the lists module.
+
+-module(sys_core_fold_lists).
+
+-export([call/4]).
+
+-include("core_parse.hrl").
+
+%% We inline some very common higher order list operations.
+%% We use the same evaluation order as the library function.
+
+-spec call(cerl:c_call(), atom(), atom(), [cerl:cerl()]) ->
+		  'none' | cerl:cerl().
+
+call(#c_call{anno=Anno}, lists, all, [Arg1,Arg2]) ->
+    Loop = #c_var{name={'lists^all',1}},
+    F = #c_var{name='F'},
+    Xs = #c_var{name='Xs'},
+    X = #c_var{name='X'},
+    Err1 = #c_tuple{es=[#c_literal{val='case_clause'}, X]},
+    CC1 = #c_clause{pats=[#c_literal{val=true}], guard=#c_literal{val=true},
+		    body=#c_apply{anno=Anno, op=Loop, args=[Xs]}},
+    CC2 = #c_clause{pats=[#c_literal{val=false}], guard=#c_literal{val=true},
+		    body=#c_literal{val=false}},
+    CC3 = #c_clause{pats=[X], guard=#c_literal{val=true},
+		    body=match_fail(Anno, Err1)},
+    C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
+		   body=#c_case{arg=#c_apply{anno=Anno, op=F, args=[X]},
+				clauses = [CC1, CC2, CC3]}},
+    C2 = #c_clause{pats=[#c_literal{val=[]}],
+		   guard=#c_call{module=#c_literal{val=erlang},
+				 name=#c_literal{val=is_function},
+				 args=[F, #c_literal{val=1}]},
+		   body=#c_literal{val=true}},
+    Err2 = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]},
+    C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
+		   body=match_fail([{function_name,{'lists^all',1}}|Anno], Err2)},
+    Fun = #c_fun{vars=[Xs],
+		 body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
+    L = #c_var{name='L'},
+    #c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]},
+	   body=#c_letrec{defs=[{Loop,Fun}],
+			  body=#c_apply{anno=Anno, op=Loop, args=[L]}}};
+call(#c_call{anno=Anno}, lists, any, [Arg1,Arg2]) ->
+    Loop = #c_var{name={'lists^any',1}},
+    F = #c_var{name='F'},
+    Xs = #c_var{name='Xs'},
+    X = #c_var{name='X'},
+    Err1 = #c_tuple{es=[#c_literal{val='case_clause'}, X]},
+    CC1 = #c_clause{pats=[#c_literal{val=true}], guard=#c_literal{val=true},
+		    body=#c_literal{val=true}},
+    CC2 = #c_clause{pats=[#c_literal{val=false}], guard=#c_literal{val=true},
+		    body=#c_apply{anno=Anno, op=Loop, args=[Xs]}},
+    CC3 = #c_clause{pats=[X], guard=#c_literal{val=true},
+		    body=match_fail(Anno, Err1)},
+    C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
+		   body=#c_case{arg=#c_apply{anno=Anno, op=F, args=[X]},
+				clauses = [CC1, CC2, CC3]}},
+    C2 = #c_clause{pats=[#c_literal{val=[]}],
+		   guard=#c_call{module=#c_literal{val=erlang},
+				 name=#c_literal{val=is_function},
+				 args=[F, #c_literal{val=1}]},
+		   body=#c_literal{val=false}},
+    Err2 = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]},
+    C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
+		   body=match_fail([{function_name,{'lists^any',1}}|Anno], Err2)},
+    Fun = #c_fun{vars=[Xs],
+		 body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
+    L = #c_var{name='L'},
+    #c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]},
+	   body=#c_letrec{defs=[{Loop,Fun}],
+			  body=#c_apply{anno=Anno, op=Loop, args=[L]}}};
+call(#c_call{anno=Anno}, lists, foreach, [Arg1,Arg2]) ->
+    Loop = #c_var{name={'lists^foreach',1}},
+    F = #c_var{name='F'},
+    Xs = #c_var{name='Xs'},
+    X = #c_var{name='X'},
+    C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
+		   body=#c_seq{arg=#c_apply{anno=Anno, op=F, args=[X]},
+			       body=#c_apply{anno=Anno, op=Loop, args=[Xs]}}},
+    C2 = #c_clause{pats=[#c_literal{val=[]}],
+		   guard=#c_call{module=#c_literal{val=erlang},
+				 name=#c_literal{val=is_function},
+				 args=[F, #c_literal{val=1}]},
+		   body=#c_literal{val=ok}},
+    Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]},
+    C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
+		   body=match_fail([{function_name,{'lists^foreach',1}}|Anno], Err)},
+    Fun = #c_fun{vars=[Xs],
+		 body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
+    L = #c_var{name='L'},
+    #c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]},
+	   body=#c_letrec{defs=[{Loop,Fun}],
+			  body=#c_apply{anno=Anno, op=Loop, args=[L]}}};
+call(#c_call{anno=Anno}, lists, map, [Arg1,Arg2]) ->
+    Loop = #c_var{name={'lists^map',1}},
+    F = #c_var{name='F'},
+    Xs = #c_var{name='Xs'},
+    X = #c_var{name='X'},
+    H = #c_var{name='H'},
+    C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
+		   body=#c_let{vars=[H], arg=#c_apply{anno=Anno,
+						      op=F,
+						      args=[X]},
+			       body=#c_cons{hd=H,
+					    anno=[compiler_generated],
+					    tl=#c_apply{anno=Anno,
+							op=Loop,
+							args=[Xs]}}}},
+    C2 = #c_clause{pats=[#c_literal{val=[]}],
+		   guard=#c_call{module=#c_literal{val=erlang},
+				 name=#c_literal{val=is_function},
+				 args=[F, #c_literal{val=1}]},
+		   body=#c_literal{val=[]}},
+    Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]},
+    C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
+		   body=match_fail([{function_name,{'lists^map',1}}|Anno], Err)},
+    Fun = #c_fun{vars=[Xs],
+		 body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
+    L = #c_var{name='L'},
+    #c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]},
+	   body=#c_letrec{defs=[{Loop,Fun}],
+			  body=#c_apply{anno=Anno, op=Loop, args=[L]}}};
+call(#c_call{anno=Anno}, lists, flatmap, [Arg1,Arg2]) ->
+    Loop = #c_var{name={'lists^flatmap',1}},
+    F = #c_var{name='F'},
+    Xs = #c_var{name='Xs'},
+    X = #c_var{name='X'},
+    H = #c_var{name='H'},
+    C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
+		   body=#c_let{vars=[H],
+			       arg=#c_apply{anno=Anno, op=F, args=[X]},
+			       body=#c_call{anno=[compiler_generated|Anno],
+					    module=#c_literal{val=erlang},
+					    name=#c_literal{val='++'},
+					    args=[H,
+						  #c_apply{anno=Anno,
+							   op=Loop,
+							   args=[Xs]}]}}},
+    C2 = #c_clause{pats=[#c_literal{val=[]}],
+		   guard=#c_call{module=#c_literal{val=erlang},
+				 name=#c_literal{val=is_function},
+				 args=[F, #c_literal{val=1}]},
+		   body=#c_literal{val=[]}},
+    Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]},
+    C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
+		   body=match_fail([{function_name,{'lists^flatmap',1}}|Anno], Err)},
+    Fun = #c_fun{vars=[Xs],
+		 body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
+    L = #c_var{name='L'},
+    #c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]},
+	   body=#c_letrec{defs=[{Loop,Fun}],
+			  body=#c_apply{anno=Anno, op=Loop, args=[L]}}};
+call(#c_call{anno=Anno}, lists, filter, [Arg1,Arg2]) ->
+    Loop = #c_var{name={'lists^filter',1}},
+    F = #c_var{name='F'},
+    Xs = #c_var{name='Xs'},
+    X = #c_var{name='X'},
+    B = #c_var{name='B'},
+    Err1 = #c_tuple{es=[#c_literal{val='case_clause'}, X]},
+    CC1 = #c_clause{pats=[#c_literal{val=true}], guard=#c_literal{val=true},
+		    body=#c_cons{anno=[compiler_generated], hd=X, tl=Xs}},
+    CC2 = #c_clause{pats=[#c_literal{val=false}], guard=#c_literal{val=true},
+		    body=Xs},
+    CC3 = #c_clause{pats=[X], guard=#c_literal{val=true},
+		    body=match_fail(Anno, Err1)},
+    Case = #c_case{arg=B, clauses = [CC1, CC2, CC3]},
+    C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
+		   body=#c_let{vars=[B],
+			       arg=#c_apply{anno=Anno, op=F, args=[X]},
+			       body=#c_let{vars=[Xs],
+					   arg=#c_apply{anno=Anno,
+							op=Loop,
+							args=[Xs]},
+					   body=Case}}},
+    C2 = #c_clause{pats=[#c_literal{val=[]}],
+		   guard=#c_call{module=#c_literal{val=erlang},
+				 name=#c_literal{val=is_function},
+				 args=[F, #c_literal{val=1}]},
+		   body=#c_literal{val=[]}},
+    Err2 = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]},
+    C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
+		   body=match_fail([{function_name,{'lists^filter',1}}|Anno], Err2)},
+    Fun = #c_fun{vars=[Xs],
+		 body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
+    L = #c_var{name='L'},
+    #c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]},
+		body=#c_letrec{defs=[{Loop,Fun}],
+			       body=#c_apply{anno=Anno, op=Loop, args=[L]}}};
+call(#c_call{anno=Anno}, lists, foldl, [Arg1,Arg2,Arg3]) ->
+    Loop = #c_var{name={'lists^foldl',2}},
+    F = #c_var{name='F'},
+    Xs = #c_var{name='Xs'},
+    X = #c_var{name='X'},
+    A = #c_var{name='A'},
+    C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
+		   body=#c_apply{anno=Anno,
+				 op=Loop,
+				 args=[Xs, #c_apply{anno=Anno,
+						    op=F,
+						    args=[X, A]}]}},
+    C2 = #c_clause{pats=[#c_literal{val=[]}],
+		   guard=#c_call{module=#c_literal{val=erlang},
+				 name=#c_literal{val=is_function},
+				 args=[F, #c_literal{val=2}]},
+		   body=A},
+    Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, A, Xs]},
+    C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
+		   body=match_fail([{function_name,{'lists^foldl',2}}|Anno], Err)},
+    Fun = #c_fun{vars=[Xs, A],
+		 body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
+    L = #c_var{name='L'},
+    #c_let{vars=[F, A, L], arg=#c_values{es=[Arg1, Arg2, Arg3]},
+	   body=#c_letrec{defs=[{Loop,Fun}],
+			  body=#c_apply{anno=Anno, op=Loop, args=[L, A]}}};
+call(#c_call{anno=Anno}, lists, foldr, [Arg1,Arg2,Arg3]) ->
+    Loop = #c_var{name={'lists^foldr',2}},
+    F = #c_var{name='F'},
+    Xs = #c_var{name='Xs'},
+    X = #c_var{name='X'},
+    A = #c_var{name='A'},
+    C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
+		   body=#c_apply{anno=Anno,
+				 op=F,
+				 args=[X, #c_apply{anno=Anno,
+						   op=Loop,
+						   args=[Xs, A]}]}},
+    C2 = #c_clause{pats=[#c_literal{val=[]}],
+		   guard=#c_call{module=#c_literal{val=erlang},
+				 name=#c_literal{val=is_function},
+				 args=[F, #c_literal{val=2}]},
+		   body=A},
+    Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, A, Xs]},
+    C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
+		   body=match_fail([{function_name,{'lists^foldr',2}}|Anno], Err)},
+    Fun = #c_fun{vars=[Xs, A],
+		 body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
+    L = #c_var{name='L'},
+    #c_let{vars=[F, A, L], arg=#c_values{es=[Arg1, Arg2, Arg3]},
+	   body=#c_letrec{defs=[{Loop,Fun}],
+			  body=#c_apply{anno=Anno, op=Loop, args=[L, A]}}};
+call(#c_call{anno=Anno}, lists, mapfoldl, [Arg1,Arg2,Arg3]) ->
+    Loop = #c_var{name={'lists^mapfoldl',2}},
+    F = #c_var{name='F'},
+    Xs = #c_var{name='Xs'},
+    X = #c_var{name='X'},
+    Avar = #c_var{name='A'},
+    Match =
+	fun (A, P, E) ->
+		C1 = #c_clause{pats=[P], guard=#c_literal{val=true}, body=E},
+		Err = #c_tuple{es=[#c_literal{val='badmatch'}, X]},
+		C2 = #c_clause{pats=[X], guard=#c_literal{val=true},
+			       body=match_fail(Anno, Err)},
+		#c_case{arg=A, clauses=[C1, C2]}
+	end,
+    C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
+		   body=Match(#c_apply{anno=Anno, op=F, args=[X, Avar]},
+			      #c_tuple{es=[X, Avar]},
+%%% Tuple passing version
+			      Match(#c_apply{anno=Anno,
+					     op=Loop,
+					     args=[Xs, Avar]},
+				    #c_tuple{es=[Xs, Avar]},
+				    #c_tuple{anno=[compiler_generated],
+					     es=[#c_cons{anno=[compiler_generated],
+							 hd=X, tl=Xs},
+						 Avar]})
+%%% Multiple-value version
+%%% 			      #c_let{vars=[Xs,A],
+%%% 				     %% The tuple here will be optimised
+%%% 				     %% away later; no worries.
+%%% 				     arg=#c_apply{op=Loop, args=[Xs, A]},
+%%% 				     body=#c_values{es=[#c_cons{hd=X, tl=Xs},
+%%% 							A]}}
+			     )},
+    C2 = #c_clause{pats=[#c_literal{val=[]}],
+		   guard=#c_call{module=#c_literal{val=erlang},
+				 name=#c_literal{val=is_function},
+				 args=[F, #c_literal{val=2}]},
+%%% Tuple passing version
+		   body=#c_tuple{anno=[compiler_generated],
+				 es=[#c_literal{val=[]}, Avar]}},
+%%% Multiple-value version
+%%% 		   body=#c_values{es=[#c_literal{val=[]}, A]}},
+    Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Avar, Xs]},
+    C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
+		   body=match_fail([{function_name,{'lists^mapfoldl',2}}|Anno], Err)},
+    Fun = #c_fun{vars=[Xs, Avar],
+		 body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
+    L = #c_var{name='L'},
+    #c_let{vars=[F, Avar, L], arg=#c_values{es=[Arg1, Arg2, Arg3]},
+	   body=#c_letrec{defs=[{Loop,Fun}],
+%%% Tuple passing version
+			  body=#c_apply{anno=Anno,
+					op=Loop,
+					args=[L, Avar]}}};
+%%% Multiple-value version
+%%% 			       body=#c_let{vars=[Xs, A],
+%%% 					   arg=#c_apply{op=Loop,
+%%% 							args=[L, A]},
+%%% 					   body=#c_tuple{es=[Xs, A]}}}};
+call(#c_call{anno=Anno}, lists, mapfoldr, [Arg1,Arg2,Arg3]) ->
+    Loop = #c_var{name={'lists^mapfoldr',2}},
+    F = #c_var{name='F'},
+    Xs = #c_var{name='Xs'},
+    X = #c_var{name='X'},
+    Avar = #c_var{name='A'},
+    Match =
+	fun (A, P, E) ->
+		C1 = #c_clause{pats=[P], guard=#c_literal{val=true}, body=E},
+		Err = #c_tuple{es=[#c_literal{val='badmatch'}, X]},
+		C2 = #c_clause{pats=[X], guard=#c_literal{val=true},
+			       body=match_fail(Anno, Err)},
+		#c_case{arg=A, clauses=[C1, C2]}
+	end,
+    C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
+%%% Tuple passing version
+		   body=Match(#c_apply{anno=Anno,
+				       op=Loop,
+				       args=[Xs, Avar]},
+			      #c_tuple{es=[Xs, Avar]},
+			      Match(#c_apply{anno=Anno, op=F, args=[X, Avar]},
+				    #c_tuple{es=[X, Avar]},
+				    #c_tuple{anno=[compiler_generated],
+					     es=[#c_cons{anno=[compiler_generated],
+							 hd=X, tl=Xs}, Avar]}))
+%%% Multiple-value version
+%%% 		   body=#c_let{vars=[Xs,A],
+%%% 			       %% The tuple will be optimised away
+%%% 			       arg=#c_apply{op=Loop, args=[Xs, A]},
+%%% 			       body=Match(#c_apply{op=F, args=[X, A]},
+%%% 					  #c_tuple{es=[X, A]},
+%%% 					  #c_values{es=[#c_cons{hd=X, tl=Xs},
+%%% 						        A]})}
+		  },
+    C2 = #c_clause{pats=[#c_literal{val=[]}],
+		   guard=#c_call{module=#c_literal{val=erlang},
+				 name=#c_literal{val=is_function},
+				 args=[F, #c_literal{val=2}]},
+%%% Tuple passing version
+		   body=#c_tuple{anno=[compiler_generated],
+				 es=[#c_literal{val=[]}, Avar]}},
+%%% Multiple-value version
+%%% 		   body=#c_values{es=[#c_literal{val=[]}, A]}},
+    Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Avar, Xs]},
+    C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
+		   body=match_fail([{function_name,{'lists^mapfoldr',2}}|Anno], Err)},
+    Fun = #c_fun{vars=[Xs, Avar],
+		 body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
+    L = #c_var{name='L'},
+    #c_let{vars=[F, Avar, L], arg=#c_values{es=[Arg1, Arg2, Arg3]},
+	   body=#c_letrec{defs=[{Loop,Fun}],
+%%% Tuple passing version
+			  body=#c_apply{anno=Anno,
+					op=Loop,
+					args=[L, Avar]}}};
+%%% Multiple-value version
+%%% 			       body=#c_let{vars=[Xs, A],
+%%% 					   arg=#c_apply{op=Loop,
+%%% 							args=[L, A]},
+%%% 					   body=#c_tuple{es=[Xs, A]}}}};
+call(_, _, _, _) ->
+    none.
+
+match_fail(Ann, Arg) ->
+    Name = cerl:abstract(match_fail),
+    Args = [Arg],
+    cerl:ann_c_primop(Ann, Name, Args).
diff --git a/lib/compiler/src/sys_core_inline.erl b/lib/compiler/src/sys_core_inline.erl
index 9f93acb666..1e3a735e9b 100644
--- a/lib/compiler/src/sys_core_inline.erl
+++ b/lib/compiler/src/sys_core_inline.erl
@@ -195,10 +195,10 @@ kill_id_anns(Body) ->
 			   A = kill_id_anns_1(A0),
 			   CFun#c_fun{anno=A};
 		      (Expr) ->
-			   %% Mark everything as compiler generated to suppress
-			   %% bogus warnings.
-			   A = compiler_generated(core_lib:get_anno(Expr)),
-			   core_lib:set_anno(Expr, A)
+			   %% Mark everything as compiler generated to
+			   %% suppress bogus warnings.
+			   A = compiler_generated(cerl:get_ann(Expr)),
+			   cerl:set_ann(Expr, A)
 		   end, Body).
 
 kill_id_anns_1([{'id',_}|As]) ->
diff --git a/lib/compiler/src/sys_pre_expand.erl b/lib/compiler/src/sys_pre_expand.erl
index 761ae8409c..4c4628d580 100644
--- a/lib/compiler/src/sys_pre_expand.erl
+++ b/lib/compiler/src/sys_pre_expand.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2012. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -33,19 +33,19 @@
 
 -include("../include/erl_bits.hrl").
 
+-type fa() :: {atom(), arity()}.
+
 -record(expand, {module=[],                     %Module name
                  exports=[],                    %Exports
                  imports=[],                    %Imports
-                 compile=[],                    %Compile flags
                  attributes=[],                 %Attributes
                  callbacks=[],                  %Callbacks
+                 optional_callbacks=[] :: [fa()],  %Optional callbacks
                  defined,			%Defined functions (gb_set)
                  vcount=0,                      %Variable counter
                  func=[],                       %Current function
                  arity=[],                      %Arity for current function
-                 fcount=0,                      %Local fun count
-                 bitdefault,
-                 bittypes
+                 fcount=0			%Local fun count
                 }).
 
 %% module(Forms, CompileOptions)
@@ -66,15 +66,12 @@ module(Fs0, Opts0) ->
 
     %% Build initial expand record.
     St0 = #expand{exports=PreExp,
-                  compile=Opts,
-                  defined=PreExp,
-                  bitdefault = erl_bits:system_bitdefault(),
-                  bittypes = erl_bits:system_bittypes()
+                  defined=PreExp
                  },
     %% Expand the functions.
     {Tfs,St1} = forms(Fs, define_functions(Fs, St0)),
     %% Get the correct list of exported functions.
-    Exports = case member(export_all, St1#expand.compile) of
+    Exports = case member(export_all, Opts) of
                   true -> gb_sets:to_list(St1#expand.defined);
                   false -> St1#expand.exports
               end,
@@ -82,7 +79,7 @@ module(Fs0, Opts0) ->
     {Ats,St3} = module_attrs(St1#expand{exports = Exports}),
     {Mfs,St4} = module_predef_funcs(St3),
     {St4#expand.module, St4#expand.exports, Ats ++ Tfs ++ Mfs,
-     St4#expand.compile}.
+     Opts}.
 
 compiler_options(Forms) ->
     lists:flatten([C || {attribute,_,compile,C} <- Forms]).
@@ -99,28 +96,48 @@ define_functions(Forms, #expand{defined=Predef}=St) ->
 module_attrs(#expand{attributes=Attributes}=St) ->
     Attrs = [{attribute,Line,Name,Val} || {Name,Line,Val} <- Attributes],
     Callbacks = [Callback || {_,_,callback,_}=Callback <- Attrs],
-    {Attrs,St#expand{callbacks=Callbacks}}.
+    OptionalCallbacks = get_optional_callbacks(Attrs),
+    {Attrs,St#expand{callbacks=Callbacks,
+                     optional_callbacks=OptionalCallbacks}}.
+
+get_optional_callbacks(Attrs) ->
+    L = [O ||
+            {attribute, _, optional_callbacks, O} <- Attrs,
+            is_fa_list(O)],
+    lists:append(L).
+
+is_fa_list([{FuncName, Arity}|L])
+  when is_atom(FuncName), is_integer(Arity), Arity >= 0 ->
+    is_fa_list(L);
+is_fa_list([]) -> true;
+is_fa_list(_) -> false.
 
 module_predef_funcs(St) ->
     {Mpf1,St1}=module_predef_func_beh_info(St),
     {Mpf2,St2}=module_predef_funcs_mod_info(St1),
-    {Mpf1++Mpf2,St2}.
+    Mpf = [erl_parse:new_anno(F) || F <- Mpf1++Mpf2],
+    {Mpf,St2}.
 
 module_predef_func_beh_info(#expand{callbacks=[]}=St) ->
     {[], St};
-module_predef_func_beh_info(#expand{callbacks=Callbacks,defined=Defined,
+module_predef_func_beh_info(#expand{callbacks=Callbacks,
+                                    optional_callbacks=OptionalCallbacks,
+                                    defined=Defined,
 				    exports=Exports}=St) ->
     PreDef=[{behaviour_info,1}],
     PreExp=PreDef,
-    {[gen_beh_info(Callbacks)],
+    {[gen_beh_info(Callbacks, OptionalCallbacks)],
      St#expand{defined=gb_sets:union(gb_sets:from_list(PreDef), Defined),
 	       exports=union(from_list(PreExp), Exports)}}.
 
-gen_beh_info(Callbacks) ->
+gen_beh_info(Callbacks, OptionalCallbacks) ->
     List = make_list(Callbacks),
+    OptionalList = make_optional_list(OptionalCallbacks),
     {function,0,behaviour_info,1,
      [{clause,0,[{atom,0,callbacks}],[],
-       [List]}]}.
+       [List]},
+      {clause,0,[{atom,0,optional_callbacks}],[],
+       [OptionalList]}]}.
 
 make_list([]) -> {nil,0};
 make_list([{_,_,_,[{{Name,Arity},_}]}|Rest]) ->
@@ -130,6 +147,14 @@ make_list([{_,_,_,[{{Name,Arity},_}]}|Rest]) ->
        {integer,0,Arity}]},
      make_list(Rest)}.
 
+make_optional_list([]) -> {nil,0};
+make_optional_list([{Name,Arity}|Rest]) ->
+    {cons,0,
+     {tuple,0,
+      [{atom,0,Name},
+       {integer,0,Arity}]},
+     make_optional_list(Rest)}.
+
 module_predef_funcs_mod_info(St) ->
     PreDef = [{module_info,0},{module_info,1}],
     PreExp = PreDef,
@@ -232,9 +257,18 @@ pattern({map,Line,Ps}, St0) ->
     {TPs,St1} = pattern_list(Ps, St0),
     {{map,Line,TPs},St1};
 pattern({map_field_exact,Line,K0,V0}, St0) ->
-    {K,St1} = expr(K0, St0),
+    %% Key should be treated as an expression
+    %% but since expressions are not allowed yet,
+    %% process it through pattern .. and handle assoc
+    %% (normalise unary op integer -> integer)
+    {K,St1} = pattern(K0, St0),
     {V,St2} = pattern(V0, St1),
     {{map_field_exact,Line,K,V},St2};
+pattern({map_field_assoc,Line,K0,V0}, St0) ->
+    %% when keys are Maps
+    {K,St1} = pattern(K0, St0),
+    {V,St2} = pattern(V0, St1),
+    {{map_field_assoc,Line,K,V},St2};
 %%pattern({struct,Line,Tag,Ps}, St0) ->
 %%    {TPs,TPsvs,St1} = pattern_list(Ps, St0),
 %%    {{tuple,Line,[{atom,Line,Tag}|TPs]},TPsvs,St1};
diff --git a/lib/compiler/src/v3_codegen.erl b/lib/compiler/src/v3_codegen.erl
index 47a357c23d..c9b1a45cfc 100644
--- a/lib/compiler/src/v3_codegen.erl
+++ b/lib/compiler/src/v3_codegen.erl
@@ -43,7 +43,7 @@
 -export([module/2]).
 
 -import(lists, [member/2,keymember/3,keysort/2,keydelete/3,
-		append/1,map/2,flatmap/2,filter/2,foldl/3,foldr/3,mapfoldl/3,
+		append/1,flatmap/2,filter/2,foldl/3,foldr/3,mapfoldl/3,
 		sort/1,reverse/1,reverse/2]).
 -import(v3_life, [vdb_find/2]).
 
@@ -57,8 +57,7 @@
 	     break,				%Break label
 	     recv,				%Receive label
 	     is_top_block,			%Boolean: top block or not
-	     functable=gb_trees:empty(),	%Gb tree of local functions:
-						% {{Name,Arity},Label}
+	     functable=#{},	                %Map of local functions: {Name,Arity}=>Label
 	     in_catch=false,			%Inside a catch or not.
 	     need_frame,			%Need a stack frame.
 	     ultimate_failure			%Label for ultimate match failure.
@@ -69,10 +68,8 @@
 	     stk=[],				%Stack table
 	     res=[]}).				%Reserved regs: [{reserved,I,V}]
 
-module({Mod,Exp,Attr,Forms}, Options) ->
-    put(?MODULE, Options),
+module({Mod,Exp,Attr,Forms}, _Options) ->
     {Fs,St} = functions(Forms, {atom,Mod}),
-    erase(?MODULE),
     {ok,{Mod,Exp,Attr,Fs,St#cg.lcount}}.
 
 functions(Forms, AtomMod) ->
@@ -123,24 +120,15 @@ cg_fun(Les, Hvs, Vdb, AtomMod, NameArity, Anno, St0) ->
 					   put_reg(V, Reg)
 				   end, [], Hvs),
 			 stk=[]}, 0, Vdb),
-    {B0,_Aft,St} = cg_list(Les, 0, Vdb, Bef,
+    {B,_Aft,St} = cg_list(Les, 0, Vdb, Bef,
 			  St3#cg{bfail=0,
 				 ultimate_failure=UltimateMatchFail,
 				 is_top_block=true}),
-    B = fix_bs_match_strings(B0),
     {Name,Arity} = NameArity,
     Asm = [{label,Fi},line(Anno),{func_info,AtomMod,{atom,Name},Arity},
 	   {label,Fl}|B++[{label,UltimateMatchFail},if_end]],
     {Asm,Fl,St}.
 
-fix_bs_match_strings([{test,bs_match_string,F,[Ctx,BinList]}|Is])
-  when is_list(BinList) ->
-    I = {test,bs_match_string,F,[Ctx,list_to_bitstring(BinList)]},
-    [I|fix_bs_match_strings(Is)];
-fix_bs_match_strings([I|Is]) ->
-    [I|fix_bs_match_strings(Is)];
-fix_bs_match_strings([]) -> [].
-
 %% cg(Lkexpr, Vdb, StackReg, State) -> {[Ainstr],StackReg,State}.
 %%  Generate code for a kexpr.
 %%  Split function into two steps for clarity, not efficiency.
@@ -210,7 +198,7 @@ need_heap_0([], H, Acc) ->
 
 need_heap_1(#l{ke={set,_,{binary,_}},i=I}, H) ->
     {need_heap_need(I, H),0};
-need_heap_1(#l{ke={set,_,{map,_,_}},i=I}, H) ->
+need_heap_1(#l{ke={set,_,{map,_,_,_}},i=I}, H) ->
     {need_heap_need(I, H),0};
 need_heap_1(#l{ke={set,_,Val}}, H) ->
     %% Just pass through adding to needed heap.
@@ -586,7 +574,7 @@ top_level_block(Keis, Bef, MaxRegs, _St) ->
 			(return) ->
 			    [{deallocate,FrameSz},return];
 			(Tuple) when is_tuple(Tuple) ->
-			    [turn_yregs(tuple_size(Tuple), Tuple, MaxY)];
+			    [turn_yregs(Tuple, MaxY)];
 			(Other) ->
 			    [Other]
 		    end, Keis),
@@ -598,14 +586,49 @@ top_level_block(Keis, Bef, MaxRegs, _St) ->
 %%   catches work.  The code generation algorithm gives a lower register
 %%   number to the outer catch, which is wrong.
 
-turn_yregs(0, Tp, _) -> Tp;
-turn_yregs(El, Tp, MaxY) ->
-    turn_yregs(El-1,setelement(El,Tp,turn_yreg(element(El,Tp),MaxY)),MaxY).
-
-turn_yreg({yy,YY},MaxY) -> {y,MaxY-YY};
-turn_yreg({list,Ls},MaxY) -> {list, turn_yreg(Ls,MaxY)};
-turn_yreg(Ts,MaxY) when is_list(Ts) -> [turn_yreg(T,MaxY)||T<-Ts];
-turn_yreg(Other,_MaxY) -> Other.
+turn_yregs({call,_,_}=I, _MaxY) -> I;
+turn_yregs({call_ext,_,_}=I, _MaxY) -> I;
+turn_yregs({jump,_}=I, _MaxY) -> I;
+turn_yregs({label,_}=I, _MaxY) -> I;
+turn_yregs({line,_}=I, _MaxY) -> I;
+turn_yregs({test_heap,_,_}=I, _MaxY) -> I;
+turn_yregs({bif,Op,F,A,B}, MaxY) ->
+    {bif,Op,F,turn_yreg(A, MaxY),turn_yreg(B, MaxY)};
+turn_yregs({gc_bif,Op,F,Live,A,B}, MaxY) when is_integer(Live) ->
+    {gc_bif,Op,F,Live,turn_yreg(A, MaxY),turn_yreg(B, MaxY)};
+turn_yregs({get_tuple_element,S,N,D}, MaxY) ->
+    {get_tuple_element,turn_yreg(S, MaxY),N,turn_yreg(D, MaxY)};
+turn_yregs({put_tuple,Arity,D}, MaxY) ->
+    {put_tuple,Arity,turn_yreg(D, MaxY)};
+turn_yregs({select_val,R,F,L}, MaxY) ->
+    {select_val,turn_yreg(R, MaxY),F,L};
+turn_yregs({test,Op,F,L}, MaxY) ->
+    {test,Op,F,turn_yreg(L, MaxY)};
+turn_yregs({test,Op,F,Live,A,B}, MaxY) when is_integer(Live) ->
+    {test,Op,F,Live,turn_yreg(A, MaxY),turn_yreg(B, MaxY)};
+turn_yregs({Op,A}, MaxY) ->
+    {Op,turn_yreg(A, MaxY)};
+turn_yregs({Op,A,B}, MaxY) ->
+    {Op,turn_yreg(A, MaxY),turn_yreg(B, MaxY)};
+turn_yregs({Op,A,B,C}, MaxY) ->
+    {Op,turn_yreg(A, MaxY),turn_yreg(B, MaxY),turn_yreg(C, MaxY)};
+turn_yregs(Tuple, MaxY) ->
+    turn_yregs(tuple_size(Tuple), Tuple, MaxY).
+
+turn_yregs(1, Tp, _) ->
+    Tp;
+turn_yregs(N, Tp, MaxY) ->
+    E = turn_yreg(element(N, Tp), MaxY),
+    turn_yregs(N-1, setelement(N, Tp, E), MaxY).
+
+turn_yreg({yy,YY}, MaxY) ->
+    {y,MaxY-YY};
+turn_yreg({list,Ls},MaxY) ->
+    {list,turn_yreg(Ls, MaxY)};
+turn_yreg([_|_]=Ts, MaxY) ->
+    [turn_yreg(T, MaxY) || T <- Ts];
+turn_yreg(Other, _MaxY) ->
+    Other.
 
 %% select_cg(Sclause, V, TypeFail, ValueFail, StackReg, State) ->
 %%      {Is,StackReg,State}.
@@ -643,19 +666,13 @@ select_val_cg(tuple, R, [Arity,{f,Lbl}], Tf, Vf, [{label,Lbl}|Sis]) ->
     [{test,is_tuple,{f,Tf},[R]},{test,test_arity,{f,Vf},[R,Arity]}|Sis];
 select_val_cg(tuple, R, Vls, Tf, Vf, Sis) ->
     [{test,is_tuple,{f,Tf},[R]},{select_tuple_arity,R,{f,Vf},{list,Vls}}|Sis];
-select_val_cg(map, R, [_Val,{f,Lbl}], Fail, Fail, [{label,Lbl}|Sis]) ->
-    [{test,is_map,{f,Fail},[R]}|Sis];
-select_val_cg(map, R, [_Val,{f,Lbl}|_], Tf, _Vf, [{label,Lbl}|Sis]) ->
-    [{test,is_map,{f,Tf},[R]}|Sis];
 select_val_cg(Type, R, [Val, {f,Lbl}], Fail, Fail, [{label,Lbl}|Sis]) ->
     [{test,is_eq_exact,{f,Fail},[R,{Type,Val}]}|Sis];
 select_val_cg(Type, R, [Val, {f,Lbl}], Tf, Vf, [{label,Lbl}|Sis]) ->
     [{test,select_type_test(Type),{f,Tf},[R]},
      {test,is_eq_exact,{f,Vf},[R,{Type,Val}]}|Sis];
 select_val_cg(Type, R, Vls0, Tf, Vf, Sis) ->
-    Vls1 = map(fun ({f,_Lbl} = F) -> F;
-		   (Value) -> {Type,Value}
-	       end, Vls0),
+    Vls1 = [case Value of {f,_Lbl} -> Value; _ -> {Type,Value} end || Value <- Vls0],
     [{test,select_type_test(Type),{f,Tf},[R]}, {select_val,R,{f,Vf},{list,Vls1}}|Sis].
     
 select_type_test(integer) -> is_integer;
@@ -688,22 +705,37 @@ select_nil(#l{ke={val_clause,nil,B}}, V, Tf, Vf, Bef, St0) ->
 select_binary(#l{ke={val_clause,{binary,{var,V}},B},i=I,vdb=Vdb},
 	      V, Tf, Vf, Bef, St0) ->
     Int0 = clear_dead(Bef#sr{reg=Bef#sr.reg}, I, Vdb),
-    {Bis,Aft,St1} = match_cg(B, Vf, Int0, St0),
+    {Bis0,Aft,St1} = match_cg(B, Vf, Int0, St0),
     CtxReg = fetch_var(V, Int0),
     Live = max_reg(Bef#sr.reg),
-    {[{test,bs_start_match2,{f,Tf},Live,[CtxReg,V],CtxReg},
-      {bs_save2,CtxReg,{V,V}}|Bis],
-     Aft,St1};
+    Bis1 = [{test,bs_start_match2,{f,Tf},Live,[CtxReg,V],CtxReg},
+	    {bs_save2,CtxReg,{V,V}}|Bis0],
+    Bis = finish_select_binary(Bis1),
+    {Bis,Aft,St1};
 select_binary(#l{ke={val_clause,{binary,{var,Ivar}},B},i=I,vdb=Vdb},
 	      V, Tf, Vf, Bef, St0) ->
     Regs = put_reg(Ivar, Bef#sr.reg),
     Int0 = clear_dead(Bef#sr{reg=Regs}, I, Vdb),
-    {Bis,Aft,St1} = match_cg(B, Vf, Int0, St0),
+    {Bis0,Aft,St1} = match_cg(B, Vf, Int0, St0),
     CtxReg = fetch_var(Ivar, Int0),
     Live = max_reg(Bef#sr.reg),
-    {[{test,bs_start_match2,{f,Tf},Live,[fetch_var(V, Bef),Ivar],CtxReg},
-      {bs_save2,CtxReg,{Ivar,Ivar}}|Bis],
-     Aft,St1}.
+    Bis1 = [{test,bs_start_match2,{f,Tf},Live,[fetch_var(V, Bef),Ivar],CtxReg},
+	    {bs_save2,CtxReg,{Ivar,Ivar}}|Bis0],
+    Bis = finish_select_binary(Bis1),
+    {Bis,Aft,St1}.
+
+finish_select_binary([{bs_save2,R,Point}=I,{bs_restore2,R,Point}|Is]) ->
+    [I|finish_select_binary(Is)];
+finish_select_binary([{bs_save2,R,Point}=I,{test,is_eq_exact,_,_}=Test,
+		      {bs_restore2,R,Point}|Is]) ->
+    [I,Test|finish_select_binary(Is)];
+finish_select_binary([{test,bs_match_string,F,[Ctx,BinList]}|Is])
+  when is_list(BinList) ->
+    I = {test,bs_match_string,F,[Ctx,list_to_bitstring(BinList)]},
+    [I|finish_select_binary(Is)];
+finish_select_binary([I|Is]) ->
+    [I|finish_select_binary(Is)];
+finish_select_binary([]) -> [].
 
 %% New instructions for selection of binary segments.
 
@@ -928,7 +960,7 @@ select_extract_tuple(Src, Vs, I, Vdb, Bef, St) ->
 select_map(Scs, V, Tf, Vf, Bef, St0) ->
     Reg = fetch_var(V, Bef),
     {Is,Aft,St1} =
-	match_fmf(fun(#l{ke={val_clause,{map,_,Es},B},i=I,vdb=Vdb}, Fail, St1) ->
+	match_fmf(fun(#l{ke={val_clause,{map,exact,_,Es},B},i=I,vdb=Vdb}, Fail, St1) ->
 			  select_map_val(V, Es, B, Fail, I, Vdb, Bef, St1)
 		  end, Vf, St0, Scs),
     {[{test,is_map,{f,Tf},[Reg]}|Is],Aft,St1}.
@@ -947,27 +979,34 @@ select_extract_map(Src, Vs, Fail, I, Vdb, Bef, St) ->
     %% Assume keys are term-sorted
     Rsrc = fetch_var(Src, Bef),
 
-    {{HasKs,GetVs},Aft} = lists:foldr(fun
-	    ({map_pair,Key,{var,V}},{{HasKsi,GetVsi},Int0}) ->
+    {{HasKs,GetVs,HasVarKs,GetVarVs},Aft} = lists:foldr(fun
+	    ({map_pair,{var,K},{var,V}},{{HasKsi,GetVsi,HasVarVsi,GetVarVsi},Int0}) ->
+		case vdb_find(V, Vdb) of
+		    {V,_,L} when L =< I ->
+			RK = fetch_var(K,Int0),
+			{{HasKsi,GetVsi,[RK|HasVarVsi],GetVarVsi},Int0};
+		    _Other ->
+			Reg1 = put_reg(V, Int0#sr.reg),
+			Int1 = Int0#sr{reg=Reg1},
+			RK = fetch_var(K,Int0),
+			RV = fetch_reg(V,Reg1),
+			{{HasKsi,GetVsi,HasVarVsi,[[RK,RV]|GetVarVsi]},Int1}
+		end;
+	    ({map_pair,Key,{var,V}},{{HasKsi,GetVsi,HasVarVsi,GetVarVsi},Int0}) ->
 		case vdb_find(V, Vdb) of
 		    {V,_,L} when L =< I ->
-			{{[Key|HasKsi],GetVsi},Int0};
+			{{[Key|HasKsi],GetVsi,HasVarVsi,GetVarVsi},Int0};
 		    _Other ->
 			Reg1 = put_reg(V, Int0#sr.reg),
 			Int1 = Int0#sr{reg=Reg1},
-			{{HasKsi,[Key,fetch_reg(V, Reg1)|GetVsi]},Int1}
+			{{HasKsi,[Key,fetch_reg(V, Reg1)|GetVsi],HasVarVsi,GetVarVsi},Int1}
 		end
-	end, {{[],[]},Bef}, Vs),
-
-    Code = case {HasKs,GetVs} of
-	{HasKs,[]} ->
-	    [{test,has_map_fields,{f,Fail},Rsrc,{list,HasKs}}];
-	{[],GetVs} ->
-	    [{get_map_elements,   {f,Fail},Rsrc,{list,GetVs}}];
-	{HasKs,GetVs} ->
-	    [{test,has_map_fields,{f,Fail},Rsrc,{list,HasKs}},
-	     {get_map_elements,   {f,Fail},Rsrc,{list,GetVs}}]
-    end,
+	end, {{[],[],[],[]},Bef}, Vs),
+
+    Code = [{test,has_map_fields,{f,Fail},Rsrc,{list,HasKs}} || HasKs =/= []] ++
+	   [{test,has_map_fields,{f,Fail},Rsrc,{list,[K]}}   || K <- HasVarKs] ++
+	   [{get_map_elements,   {f,Fail},Rsrc,{list,GetVs}} || GetVs =/= []] ++
+	   [{get_map_elements,   {f,Fail},Rsrc,{list,[K,V]}} || [K,V] <- GetVarVs],
     {Code, Aft, St}.
 
 
@@ -1038,7 +1077,7 @@ protected_cg(Ts, Rs, _Fail, I, Vdb, Bef, St0) ->
 				  St2#cg{bfail=Pfail}),
     %%ok = io:fwrite("cg ~w: ~p~n", [?LINE,{Rs,I,Vdb,Aft}]),
     %% Set return values to false.
-    Mis = map(fun ({var,V}) -> {move,{atom,false},fetch_var(V, Aft)} end, Rs),
+    Mis = [{move,{atom,false},fetch_var(V,Aft)}||{var,V} <- Rs],
     {Tis ++ [{jump,{f,Psucc}},
 	     {label,Pfail}] ++ Mis ++ [{label,Psucc}],
      Aft,St3#cg{bfail=St0#cg.bfail}}.    
@@ -1221,13 +1260,12 @@ enter_line(_, _, _) ->
 local_func_label(Name, Arity, St) ->
     local_func_label({Name,Arity}, St).
 
-local_func_label(Key, #cg{functable=Tab}=St0) ->
-    case gb_trees:lookup(Key, Tab) of
-	{value,Label} ->
-	    {Label,St0};
-	none ->
+local_func_label(Key, #cg{functable=Map}=St0) ->
+    case Map of
+        #{Key := Label} -> {Label,St0};
+        _ ->
   	    {Label,St} = new_label(St0),
-	    {Label,St#cg{functable=gb_trees:insert(Key, Label, Tab)}}
+	    {Label,St#cg{functable=Map#{Key => Label}}}
     end.
 
 %% need_stack_frame(State) -> State'
@@ -1504,7 +1542,8 @@ set_cg([{var,R}], {binary,Segs}, Le, Vdb, Bef,
     %% Now generate the complete code for constructing the binary.
     Code = cg_binary(PutCode, Target, Temp, Fail, MaxRegs, Le#l.a),
     {Sis++Code,Aft,St};
-set_cg([{var,R}], {map,Op,Map,Es}, Le, Vdb, Bef,
+% Map single variable key
+set_cg([{var,R}], {map,Op,Map,[{map_pair,{var,_}=K,V}]}, Le, Vdb, Bef,
        #cg{in_catch=InCatch,bfail=Bfail}=St) ->
 
     Fail = {f,Bfail},
@@ -1516,17 +1555,47 @@ set_cg([{var,R}], {map,Op,Map,Es}, Le, Vdb, Bef,
     SrcReg = cg_reg_arg(Map,Int0),
     Line = line(Le#l.a),
 
-    %% The instruction needs to store keys in term sorted order
-    %% All keys has to be unique here
-    Pairs = map_pair_strip_and_termsort(Es),
+    List = [cg_reg_arg(K,Int0),cg_reg_arg(V,Int0)],
+
+    Live = max_reg(Bef#sr.reg),
+
+    %% The target register can reuse one of the source registers.
+    Aft0 = clear_dead(Int0, Le#l.i, Vdb),
+    Aft = Aft0#sr{reg=put_reg(R, Aft0#sr.reg)},
+    Target = fetch_reg(R, Aft#sr.reg),
+
+    I = case Op of
+	assoc -> put_map_assoc;
+	exact -> put_map_exact
+    end,
+    {Sis++[Line]++[{I,Fail,SrcReg,Target,Live,{list,List}}],Aft,St};
+
+% Map (possibly) multiple literal keys
+set_cg([{var,R}], {map,Op,Map,Es}, Le, Vdb, Bef,
+       #cg{in_catch=InCatch,bfail=Bfail}=St) ->
+
+    %% assert key literals
+    [] = [Var||{map_pair,{var,_}=Var,_} <- Es],
+
+    Fail = {f,Bfail},
+    {Sis,Int0} =
+	case InCatch of
+	    true -> adjust_stack(Bef, Le#l.i, Le#l.i+1, Vdb);
+	    false -> {[],Bef}
+	end,
+    SrcReg = cg_reg_arg(Map,Int0),
+    Line = line(Le#l.a),
 
     %% fetch registers for values to be put into the map
+    Pairs = [{K,V} || {_,K,V} <- Es],
     List = flatmap(fun({K,V}) -> [K,cg_reg_arg(V,Int0)] end, Pairs),
 
     Live = max_reg(Bef#sr.reg),
-    Int1 = Int0#sr{reg=put_reg(R, Int0#sr.reg)},
-    Aft = clear_dead(Int1, Le#l.i, Vdb),
-    Target = fetch_reg(R, Int1#sr.reg),
+
+    %% The target register can reuse one of the source registers.
+    Aft0 = clear_dead(Int0, Le#l.i, Vdb),
+    Aft = Aft0#sr{reg=put_reg(R, Aft0#sr.reg)},
+    Target = fetch_reg(R, Aft#sr.reg),
 
     I = case Op of
 	assoc -> put_map_assoc;
@@ -1545,16 +1614,6 @@ set_cg([{var,R}], Con, Le, Vdb, Bef, St) ->
 	  end,
     {Ais,clear_dead(Int, Le#l.i, Vdb),St}.
 
-map_pair_strip_and_termsort(Es) ->
-    %% format in
-    %%    [{map_pair,K,V}]
-    %% where K is for example {integer, 1} and we want to sort on 1.
-    Ls = [{K,V}||{_,K,V}<-Es],
-    lists:sort(fun ({{_,A},_}, {{_,B},_}) -> erts_internal:cmp_term(A,B) =< 0;
-                   ({nil,_},   {{_,B},_}) -> [] =< B;
-                   ({{_,A},_}, {nil,_})   -> A =< []
-               end, Ls).
-
 %%%
 %%% Code generation for constructing binaries.
 %%%
@@ -1929,25 +1988,28 @@ clear_dead(Sr, Until, Vdb) ->
 	  stk=clear_dead_stk(Sr#sr.stk, Until, Vdb)}.
 
 clear_dead_reg(Sr, Until, Vdb) ->
-    Reg = map(fun ({_I,V} = IV) ->
-		      case vdb_find(V, Vdb) of
-			  {V,_,L} when L > Until -> IV;
-			  _ -> free		%Remove anything else
-		      end;
-		  ({reserved,_I,_V} = Reserved) -> Reserved;
-		  (free) -> free
-	      end, Sr#sr.reg),
+    Reg = [case R of
+            {_I,V} = IV ->
+                case vdb_find(V, Vdb) of
+                    {V,_,L} when L > Until -> IV;
+                    _ -> free		%Remove anything else
+                end;
+            {reserved,_I,_V} = Reserved -> Reserved;
+            free -> free
+        end || R <- Sr#sr.reg],
     reserve(Sr#sr.res, Reg, Sr#sr.stk).
 
 clear_dead_stk(Stk, Until, Vdb) ->
-    map(fun ({V} = T) ->
-		case vdb_find(V, Vdb) of
-		    {V,_,L} when L > Until -> T;
-		    _ -> dead			%Remove anything else
-		end;
-	    (free) -> free;
-	    (dead) -> dead
-	end, Stk).
+    [case S of
+	    {V} = T ->
+            case vdb_find(V, Vdb) of
+                {V,_,L} when L > Until -> T;
+                _ -> dead   %Remove anything else
+            end;
+        free -> free;
+        dead -> dead
+     end || S <- Stk].
+
 
 %% sr_merge(Sr1, Sr2) -> Sr.
 %%  Merge two stack/register states keeping the longest of both stack
@@ -2077,9 +2139,11 @@ put_stack(Val, [free|Stk]) -> [{Val}|Stk];
 put_stack(Val, [NotFree|Stk]) -> [NotFree|put_stack(Val, Stk)].
 
 put_stack_carefully(Val, Stk0) ->
-    case catch put_stack_carefully1(Val, Stk0) of
-	error -> error;
-	Stk1 when is_list(Stk1) -> Stk1
+    try
+	put_stack_carefully1(Val, Stk0)
+    catch
+	throw:error ->
+	    error
     end.
 
 put_stack_carefully1(_, []) -> throw(error);
diff --git a/lib/compiler/src/v3_core.erl b/lib/compiler/src/v3_core.erl
index 59ec0d4199..ecaecb0ff6 100644
--- a/lib/compiler/src/v3_core.erl
+++ b/lib/compiler/src/v3_core.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1999-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -66,6 +66,7 @@
 %% match arguments are novars
 %% case arguments are novars
 %% receive timeouts are novars
+%% binaries and maps are novars
 %% let/set arguments are expressions
 %% fun is not a safe
 
@@ -77,13 +78,11 @@
 		splitwith/2,keyfind/3,sort/1,foreach/2,droplast/1,last/1]).
 -import(ordsets, [add_element/2,del_element/2,is_element/2,
 		  union/1,union/2,intersection/2,subtract/2]).
--import(cerl, [ann_c_cons/3,ann_c_cons_skel/3,ann_c_tuple/2,c_tuple/1,
-	       ann_c_map/2, ann_c_map/3]).
+-import(cerl, [ann_c_cons/3,ann_c_tuple/2,c_tuple/1,
+	       ann_c_map/3]).
 
 -include("core_parse.hrl").
 
--define(REC_OFFSET, 100000000). % Also in erl_expand_records.
-
 %% Internal core expressions and help functions.
 %% N.B. annotations fields in place as normal Core expressions.
 
@@ -105,7 +104,9 @@
 -record(iset,      {anno=#a{},var,arg}).
 -record(itry,      {anno=#a{},args,vars,body,evars,handler}).
 -record(ifilter,   {anno=#a{},arg}).
--record(igen,      {anno=#a{},acc_pat,acc_guard,skip_pat,tail,tail_pat,arg}).
+-record(igen,      {anno=#a{},ceps=[],acc_pat,acc_guard,
+		    skip_pat,tail,tail_pat,arg}).
+-record(isimple,   {anno=#a{},term :: cerl:cerl()}).
 
 -type iapply()    :: #iapply{}.
 -type ibinary()   :: #ibinary{}.
@@ -124,11 +125,12 @@
 -type itry()      :: #itry{}.
 -type ifilter()   :: #ifilter{}.
 -type igen()      :: #igen{}.
+-type isimple()   :: #isimple{}.
 
 -type i() :: iapply()   | ibinary()   | icall()     | icase()  | icatch()
            | iclause()  | ifun()      | iletrec()   | imatch() | iprimop()
            | iprotect() | ireceive1() | ireceive2() | iset()   | itry()
-           | ifilter()  | igen().
+           | ifilter()  | igen()      | isimple().
 
 -type warning() :: {file:filename(), [{integer(), module(), term()}]}.
 
@@ -166,63 +168,86 @@ form({attribute,_,file,{File,_Line}}, {Fs,As,Ws,_}, _Opts) ->
 form({attribute,_,_,_}=F, {Fs,As,Ws,File}, _Opts) ->
     {Fs,[attribute(F)|As],Ws,File}.
 
-attribute({attribute,Line,Name,Val}) ->
-    {#c_literal{val=Name, anno=[Line]}, #c_literal{val=Val, anno=[Line]}}.
+attribute(Attribute) ->
+    Fun = fun(A) ->  [erl_anno:location(A)] end,
+    {attribute,Line,Name,Val} = erl_parse:map_anno(Fun, Attribute),
+    {#c_literal{val=Name, anno=Line}, #c_literal{val=Val, anno=Line}}.
+
+%% function_dump(module_info,_,_,_) -> ok;
+%% function_dump(Name,Arity,Format,Terms) ->
+%%     io:format("~w/~w " ++ Format,[Name,Arity]++Terms),
+%%     ok.
 
 function({function,_,Name,Arity,Cs0}, Ws0, File, Opts) ->
-    %%ok = io:fwrite("~p - ", [{Name,Arity}]),
     St0 = #core{vcount=0,opts=Opts,ws=Ws0,file=[{file,File}]},
     {B0,St1} = body(Cs0, Name, Arity, St0),
-    %%ok = io:fwrite("1", []),
-    %%ok = io:fwrite("~w:~p~n", [?LINE,B0]),
+    %% ok = function_dump(Name,Arity,"body:~n~p~n",[B0]),
     {B1,St2} = ubody(B0, St1),
-    %%ok = io:fwrite("2", []),
-    %%ok = io:fwrite("~w:~p~n", [?LINE,B1]),
+    %% ok = function_dump(Name,Arity,"ubody:~n~p~n",[B1]),
     {B2,#core{ws=Ws}} = cbody(B1, St2),
-    %%ok = io:fwrite("3~n", []),
-    %%ok = io:fwrite("~w:~p~n", [?LINE,B2]),
+    %% ok = function_dump(Name,Arity,"cbody:~n~p~n",[B2]),
     {{#c_var{name={Name,Arity}},B2},Ws}.
 
 body(Cs0, Name, Arity, St0) ->
     Anno = lineno_anno(element(2, hd(Cs0)), St0),
     {Args,St1} = new_vars(Anno, Arity, St0),
-    {Cs1,St2} = clauses(Cs0, St1),
-    {Ps,St3} = new_vars(Arity, St2),    %Need new variables here
-    Fc = function_clause(Ps, Anno, {Name,Arity}),
-    {#ifun{anno=#a{anno=Anno},id=[],vars=Args,clauses=Cs1,fc=Fc},St3}.
+    case clauses(Cs0, St1) of
+	{Cs1,[],St2} ->
+	    {Ps,St3} = new_vars(Arity, St2),    %Need new variables here
+	    Fc = function_clause(Ps, Anno, {Name,Arity}),
+	    {#ifun{anno=#a{anno=Anno},id=[],vars=Args,clauses=Cs1,fc=Fc},St3};
+	{Cs1,Eps,St2} ->
+	    %% We have pre-expressions from patterns and
+	    %% these needs to be letified before matching
+	    %% since only bound variables are allowed
+	    AnnoGen = #a{anno=[compiler_generated]},
+	    {Ps1,St3} = new_vars(Arity, St2),    %Need new variables here
+	    Fc1 = function_clause(Ps1, Anno, {Name,Arity}),
+	    {Ps2,St4} = new_vars(Arity, St3),    %Need new variables here
+	    Fc2 = function_clause(Ps2, Anno, {Name,Arity}),
+	    Case = #icase{anno=AnnoGen,args=Args,
+			  clauses=Cs1,
+			  fc=Fc2},
+	    {#ifun{anno=#a{anno=Anno},id=[],vars=Args,
+		   clauses=[#iclause{anno=AnnoGen,pats=Ps1,
+				     guard=[#c_literal{val=true}],
+				     body=Eps ++ [Case]}],
+		   fc=Fc1},St4}
+    end.
 
 %% clause(Clause, State) -> {Cclause,State} | noclause.
 %% clauses([Clause], State) -> {[Cclause],State}.
 %%  Convert clauses.  Trap bad pattern aliases and remove clause from
 %%  clause list.
 
-clauses([C0|Cs0], St0) ->
+clauses([C0|Cs0],St0) ->
     case clause(C0, St0) of
-	{noclause,St} -> clauses(Cs0, St);
-	{C,St1} ->
-	    {Cs,St2} = clauses(Cs0, St1),
-	    {[C|Cs],St2}
+	{noclause,_,St} -> clauses(Cs0,St);
+	{C,Eps1,St1} ->
+	    {Cs,Eps2,St2} = clauses(Cs0, St1),
+	    {[C|Cs],Eps1++Eps2,St2}
     end;
-clauses([], St) -> {[],St}.
+clauses([],St) -> {[],[],St}.
 
 clause({clause,Lc,H0,G0,B0}, St0) ->
     try head(H0, St0) of
-	H1 ->
-	    {G1,St1} = guard(G0, St0),
-	    {B1,St2} = exprs(B0, St1),
-            Anno = lineno_anno(Lc, St2),
-	    {#iclause{anno=#a{anno=Anno},pats=H1,guard=G1,body=B1},St2}
+	{H1,Eps,St1} ->
+	    {G1,St2} = guard(G0, St1),
+	    {B1,St3} = exprs(B0, St2),
+            Anno = lineno_anno(Lc, St3),
+	    {#iclause{anno=#a{anno=Anno},pats=H1,guard=G1,body=B1},Eps,St3}
     catch
 	throw:nomatch ->
 	    St = add_warning(Lc, nomatch, St0),
-	    {noclause,St}			%Bad pattern
+	    {noclause,[],St}			%Bad pattern
     end.
 
 clause_arity({clause,_,H0,_,_}) -> length(H0).
 
-%% head([P], State) -> [P].
+%% head([P], State) -> {[P],[Cexpr],State}.
 
-head(Ps, St) -> pattern_list(Ps, St).
+head(Ps, St) ->
+    pattern_list(Ps, St).
 
 %% guard([Expr], State) -> {[Cexpr],State}.
 %%  Build an explict and/or tree of guard alternatives, then traverse
@@ -266,13 +291,15 @@ gexpr({protect,Line,Arg}, Bools0, St0) ->
 	    {#iprotect{anno=#a{anno=Anno},body=Eps++[E]},[],Bools0,St}
     end;
 gexpr({op,L,'andalso',E1,E2}, Bools, St0) ->
-    {#c_var{name=V0},St} = new_var(L, St0),
+    Anno = lineno_anno(L, St0),
+    {#c_var{name=V0},St} = new_var(Anno, St0),
     V = {var,L,V0},
     False = {atom,L,false},
     E = make_bool_switch_guard(L, E1, V, E2, False),
     gexpr(E, Bools, St);
 gexpr({op,L,'orelse',E1,E2}, Bools, St0) ->
-    {#c_var{name=V0},St} = new_var(L, St0),
+    Anno = lineno_anno(L, St0),
+    {#c_var{name=V0},St} = new_var(Anno, St0),
     V = {var,L,V0},
     True = {atom,L,true},
     E = make_bool_switch_guard(L, E1, V, True, E2),
@@ -361,33 +388,30 @@ gexpr_test(E0, Bools0, St0) ->
 		    Lanno = Anno#a.anno,
 		    {New,St2} = new_var(Lanno, St1),
 		    Bools = [New|Bools0],
-		    {#icall{anno=Anno,	%Must have an #a{}
-			    module=#c_literal{anno=Lanno,val=erlang},
-			    name=#c_literal{anno=Lanno,val='=:='},
-			    args=[New,#c_literal{anno=Lanno,val=true}]},
+		    {icall_eq_true(New),
 		     Eps0 ++ [#iset{anno=Anno,var=New,arg=E1}],Bools,St2}
 	    end;
 	_ ->
-	    Anno = get_ianno(E1),
 	    Lanno = get_lineno_anno(E1),
+	    ACompGen = #a{anno=[compiler_generated]},
 	    case is_simple(E1) of
 		true ->
 		    Bools = [E1|Bools0],
-		    {#icall{anno=Anno,	%Must have an #a{}
-			    module=#c_literal{anno=Lanno,val=erlang},
-			    name=#c_literal{anno=Lanno,val='=:='},
-			    args=[E1,#c_literal{anno=Lanno,val=true}]},Eps0,Bools,St1};
+		    {icall_eq_true(E1),Eps0,Bools,St1};
 		false ->
 		    {New,St2} = new_var(Lanno, St1),
 		    Bools = [New|Bools0],
-		    {#icall{anno=Anno,	%Must have an #a{}
-			    module=#c_literal{anno=Lanno,val=erlang},
-			    name=#c_literal{anno=Lanno,val='=:='},
-			    args=[New,#c_literal{anno=Lanno,val=true}]},
-		     Eps0 ++ [#iset{anno=Anno,var=New,arg=E1}],Bools,St2}
+		    {icall_eq_true(New),
+		     Eps0 ++ [#iset{anno=ACompGen,var=New,arg=E1}],Bools,St2}
 	    end
     end.
 
+icall_eq_true(Arg) ->
+    #icall{anno=#a{anno=[compiler_generated]},
+	   module=#c_literal{val=erlang},
+	   name=#c_literal{val='=:='},
+	   args=[Arg,#c_literal{val=true}]}.
+
 force_booleans(Vs0, E, Eps, St) ->
     Vs1 = [set_anno(V, []) || V <- Vs0],
     Vs = unforce(E, Eps, Vs1),
@@ -397,16 +421,15 @@ force_booleans_1([], E, Eps, St) ->
     {E,Eps,St};
 force_booleans_1([V|Vs], E0, Eps0, St0) ->
     {E1,Eps1,St1} = force_safe(E0, St0),
-    Lanno = element(2, V),
-    Anno = #a{anno=Lanno},
-    Call = #icall{anno=Anno,module=#c_literal{anno=Lanno,val=erlang},
-		  name=#c_literal{anno=Lanno,val=is_boolean},
+    ACompGen = #a{anno=[compiler_generated]},
+    Call = #icall{anno=ACompGen,module=#c_literal{val=erlang},
+		  name=#c_literal{val=is_boolean},
 		  args=[V]},
-    {New,St} = new_var(Lanno, St1),
-    Iset = #iset{anno=Anno,var=New,arg=Call},
+    {New,St} = new_var([], St1),
+    Iset = #iset{var=New,arg=Call},
     Eps = Eps0 ++ Eps1 ++ [Iset],
-    E = #icall{anno=Anno,
-	       module=#c_literal{anno=Lanno,val=erlang},name=#c_literal{anno=Lanno,val='and'},
+    E = #icall{anno=ACompGen,
+	       module=#c_literal{val=erlang},name=#c_literal{val='and'},
 	       args=[E1,New]},
     force_booleans_1(Vs, E, Eps, St).
 
@@ -493,58 +516,32 @@ exprs([], St) -> {[],St}.
 %%  Generate an internal core expression.
 
 expr({var,L,V}, St) -> {#c_var{anno=lineno_anno(L, St),name=V},[],St};
-expr({char,L,C}, St) -> {#c_literal{anno=lineno_anno(L, St),val=C},[],St};
-expr({integer,L,I}, St) -> {#c_literal{anno=lineno_anno(L, St),val=I},[],St};
-expr({float,L,F}, St) -> {#c_literal{anno=lineno_anno(L, St),val=F},[],St};
-expr({atom,L,A}, St) -> {#c_literal{anno=lineno_anno(L, St),val=A},[],St};
-expr({nil,L}, St) -> {#c_literal{anno=lineno_anno(L, St),val=[]},[],St};
-expr({string,L,S}, St) -> {#c_literal{anno=lineno_anno(L, St),val=S},[],St};
+expr({char,L,C}, St) -> {#c_literal{anno=full_anno(L, St),val=C},[],St};
+expr({integer,L,I}, St) -> {#c_literal{anno=full_anno(L, St),val=I},[],St};
+expr({float,L,F}, St) -> {#c_literal{anno=full_anno(L, St),val=F},[],St};
+expr({atom,L,A}, St) -> {#c_literal{anno=full_anno(L, St),val=A},[],St};
+expr({nil,L}, St) -> {#c_literal{anno=full_anno(L, St),val=[]},[],St};
+expr({string,L,S}, St) -> {#c_literal{anno=full_anno(L, St),val=S},[],St};
 expr({cons,L,H0,T0}, St0) ->
     {H1,Hps,St1} = safe(H0, St0),
     {T1,Tps,St2} = safe(T0, St1),
-    A = lineno_anno(L, St2),
+    A = full_anno(L, St2),
     {annotate_cons(A, H1, T1, St2),Hps ++ Tps,St2};
 expr({lc,L,E,Qs0}, St0) ->
     {Qs1,St1} = preprocess_quals(L, Qs0, St0),
     lc_tq(L, E, Qs1, #c_literal{anno=lineno_anno(L, St1),val=[]}, St1);
 expr({bc,L,E,Qs}, St) ->
-    bc_tq(L, E, Qs, {nil,L}, St);
+    bc_tq(L, E, Qs, St);
 expr({tuple,L,Es0}, St0) ->
     {Es1,Eps,St1} = safe_list(Es0, St0),
     A = record_anno(L, St1),
     {annotate_tuple(A, Es1, St1),Eps,St1};
 expr({map,L,Es0}, St0) ->
-    % erl_lint should make sure only #{ K => V } are allowed
-    % in map construction.
-    try map_pair_list(Es0, St0) of
-	{Es1,Eps,St1} ->
-	    A = lineno_anno(L, St1),
-	    {ann_c_map(A,Es1),Eps,St1}
-    catch
-	throw:{bad_map,Warning} ->
-	    St = add_warning(L, Warning, St0),
-	    LineAnno = lineno_anno(L, St),
-	    As = [#c_literal{anno=LineAnno,val=badarg}],
-	    {#icall{anno=#a{anno=LineAnno},	%Must have an #a{}
-		    module=#c_literal{anno=LineAnno,val=erlang},
-		    name=#c_literal{anno=LineAnno,val=error},
-		    args=As},[],St}
-    end;
-expr({map,L,M0,Es0}, St0) ->
-    try expr_map(M0,Es0,lineno_anno(L, St0),St0) of
-	{_,_,_}=Res -> Res
-    catch
-	throw:{bad_map,Warning} ->
-	    St = add_warning(L, Warning, St0),
-	    LineAnno = lineno_anno(L, St),
-	    As = [#c_literal{anno=LineAnno,val=badarg}],
-	    {#icall{anno=#a{anno=LineAnno},	%Must have an #a{}
-		    module=#c_literal{anno=LineAnno,val=erlang},
-		    name=#c_literal{anno=LineAnno,val=error},
-		    args=As},[],St}
-    end;
+    map_build_pairs(#c_literal{val=#{}}, Es0, full_anno(L, St0), St0);
+expr({map,L,M,Es}, St) ->
+    expr_map(M, Es, L, St);
 expr({bin,L,Es0}, St0) ->
-    try expr_bin(Es0, lineno_anno(L, St0), St0) of
+    try expr_bin(Es0, full_anno(L, St0), St0) of
 	{_,_,_}=Res -> Res
     catch
 	throw:bad_binary ->
@@ -562,26 +559,26 @@ expr({block,_,Es0}, St0) ->
     {E1,Eps,St2} = expr(last(Es0), St1),
     {E1,Es1 ++ Eps,St2};
 expr({'if',L,Cs0}, St0) ->
-    {Cs1,St1} = clauses(Cs0, St0),
+    {Cs1,Ceps,St1} = clauses(Cs0, St0),
     Lanno = lineno_anno(L, St1),
     Fc = fail_clause([], Lanno, #c_literal{val=if_clause}),
-    {#icase{anno=#a{anno=Lanno},args=[],clauses=Cs1,fc=Fc},[],St1};
+    {#icase{anno=#a{anno=Lanno},args=[],clauses=Cs1,fc=Fc},Ceps,St1};
 expr({'case',L,E0,Cs0}, St0) ->
     {E1,Eps,St1} = novars(E0, St0),
-    {Cs1,St2} = clauses(Cs0, St1),
+    {Cs1,Ceps,St2} = clauses(Cs0, St1),
     {Fpat,St3} = new_var(St2),
     Lanno = lineno_anno(L, St2),
     Fc = fail_clause([Fpat], Lanno, c_tuple([#c_literal{val=case_clause},Fpat])),
-    {#icase{anno=#a{anno=Lanno},args=[E1],clauses=Cs1,fc=Fc},Eps,St3};
+    {#icase{anno=#a{anno=Lanno},args=[E1],clauses=Cs1,fc=Fc},Eps++Ceps,St3};
 expr({'receive',L,Cs0}, St0) ->
-    {Cs1,St1} = clauses(Cs0, St0),
-    {#ireceive1{anno=#a{anno=lineno_anno(L, St1)},clauses=Cs1}, [], St1};
+    {Cs1,Ceps,St1} = clauses(Cs0, St0),
+    {#ireceive1{anno=#a{anno=lineno_anno(L, St1)},clauses=Cs1},Ceps, St1};
 expr({'receive',L,Cs0,Te0,Tes0}, St0) ->
     {Te1,Teps,St1} = novars(Te0, St0),
     {Tes1,St2} = exprs(Tes0, St1),
-    {Cs1,St3} = clauses(Cs0, St2),
+    {Cs1,Ceps,St3} = clauses(Cs0, St2),
     {#ireceive2{anno=#a{anno=lineno_anno(L, St3)},
-		clauses=Cs1,timeout=Te1,action=Tes1},Teps,St3};
+		clauses=Cs1,timeout=Te1,action=Tes1},Teps++Ceps,St3};
 expr({'try',L,Es0,[],Ecs,[]}, St0) ->
     %% 'try ... catch ... end'
     {Es1,St1} = exprs(Es0, St0),
@@ -595,7 +592,7 @@ expr({'try',L,Es0,Cs0,Ecs,[]}, St0) ->
     %% 'try ... of ... catch ... end'
     {Es1,St1} = exprs(Es0, St0),
     {V,St2} = new_var(St1),		%This name should be arbitrary
-    {Cs1,St3} = clauses(Cs0, St2),
+    {Cs1,Ceps,St3} = clauses(Cs0, St2),
     {Fpat,St4} = new_var(St3),
     Lanno = lineno_anno(L, St4),
     Fc = fail_clause([Fpat], Lanno,
@@ -604,7 +601,7 @@ expr({'try',L,Es0,Cs0,Ecs,[]}, St0) ->
     {#itry{anno=#a{anno=lineno_anno(L, St5)},args=Es1,
 	   vars=[V],body=[#icase{anno=#a{anno=Lanno},args=[V],clauses=Cs1,fc=Fc}],
 	   evars=Evs,handler=Hs},
-     [],St5};
+     Ceps,St5};
 expr({'try',L,Es0,[],[],As0}, St0) ->
     %% 'try ... after ... end'
     {Es1,St1} = exprs(Es0, St0),
@@ -634,11 +631,11 @@ expr({'catch',L,E0}, St0) ->
     Lanno = lineno_anno(L, St1),
     {#icatch{anno=#a{anno=Lanno},body=Eps ++ [E1]},[],St1};
 expr({'fun',L,{function,F,A},{_,_,_}=Id}, St) ->
-    Lanno = lineno_anno(L, St),
+    Lanno = full_anno(L, St),
     {#c_var{anno=Lanno++[{id,Id}],name={F,A}},[],St};
 expr({'fun',L,{function,M,F,A}}, St0) ->
     {As,Aps,St1} = safe_list([M,F,A], St0),
-    Lanno = lineno_anno(L, St1),
+    Lanno = full_anno(L, St1),
     {#icall{anno=#a{anno=Lanno},
 	    module=#c_literal{val=erlang},
 	    name=#c_literal{val=make_fun},
@@ -649,13 +646,9 @@ expr({named_fun,L,'_',Cs,Id}, St) ->
     fun_tq(Id, Cs, L, St, unnamed);
 expr({named_fun,L,Name,Cs,Id}, St) ->
     fun_tq(Id, Cs, L, St, {named,Name});
-expr({call,L,{remote,_,M,F},As0}, #core{wanted=Wanted}=St0) ->
+expr({call,L,{remote,_,M,F},As0}, St0) ->
     {[M1,F1|As1],Aps,St1} = safe_list([M,F|As0], St0),
-    Lanno = lineno_anno(L, St1),
-    Anno = case Wanted of
-	       false -> [result_not_wanted|Lanno];
-	       true -> Lanno
-	   end,
+    Anno = full_anno(L, St1),
     {#icall{anno=#a{anno=Anno},module=M1,name=F1,args=As1},Aps,St1};
 expr({call,Lc,{atom,Lf,F},As0}, St0) ->
     {As1,Aps,St1} = safe_list(As0, St0),
@@ -673,24 +666,24 @@ expr({match,L,P0,E0}, St0) ->
 	      {var,_,'_'} -> St0#core{wanted=false};
 	      _ -> St0
 	  end,
-    {E2,Eps,St2} = novars(E1, St1),
+    {E2,Eps1,St2} = novars(E1, St1),
     St3 = St2#core{wanted=St0#core.wanted},
-    P2 = try
-	     pattern(P1, St3)
+    {P2,Eps2,St4} = try
+	    pattern(P1, St3)
 	 catch
 	     throw:Thrown ->
-		 Thrown
+		{Thrown,[],St3}
 	 end,
-    {Fpat,St4} = new_var(St3),
-    Lanno = lineno_anno(L, St4),
+    {Fpat,St5} = new_var(St4),
+    Lanno = lineno_anno(L, St5),
     Fc = fail_clause([Fpat], Lanno, c_tuple([#c_literal{val=badmatch},Fpat])),
     case P2 of
 	nomatch ->
-	    St = add_warning(L, nomatch, St4),
+	    St = add_warning(L, nomatch, St5),
 	    {#icase{anno=#a{anno=Lanno},
-		    args=[E2],clauses=[],fc=Fc},Eps,St};
+		    args=[E2],clauses=[],fc=Fc},Eps1++Eps2,St};
 	Other when not is_atom(Other) ->
-	    {#imatch{anno=#a{anno=Lanno},pat=P2,arg=E2,fc=Fc},Eps,St4}
+	    {#imatch{anno=#a{anno=Lanno},pat=P2,arg=E2,fc=Fc},Eps1++Eps2,St5}
     end;
 expr({op,_,'++',{lc,Llc,E,Qs0},More}, St0) ->
     %% Optimise '++' here because of the list comprehension algorithm.
@@ -704,26 +697,28 @@ expr({op,_,'++',{lc,Llc,E,Qs0},More}, St0) ->
     {Y,Yps,St} = lc_tq(Llc, E, Qs, Mc, St2),
     {Y,Mps++Yps,St};
 expr({op,L,'andalso',E1,E2}, St0) ->
-    {#c_var{name=V0},St} = new_var(L, St0),
+    Anno = lineno_anno(L, St0),
+    {#c_var{name=V0},St} = new_var(Anno, St0),
     V = {var,L,V0},
     False = {atom,L,false},
     E = make_bool_switch(L, E1, V, E2, False, St0),
     expr(E, St);
 expr({op,L,'orelse',E1,E2}, St0) ->
-    {#c_var{name=V0},St} = new_var(L, St0),
+    Anno = lineno_anno(L, St0),
+    {#c_var{name=V0},St} = new_var(Anno, St0),
     V = {var,L,V0},
     True = {atom,L,true},
     E = make_bool_switch(L, E1, V, True, E2, St0),
     expr(E, St);
 expr({op,L,Op,A0}, St0) ->
     {A1,Aps,St1} = safe(A0, St0),
-    LineAnno = lineno_anno(L, St1),
+    LineAnno = full_anno(L, St1),
     {#icall{anno=#a{anno=LineAnno},		%Must have an #a{}
 	    module=#c_literal{anno=LineAnno,val=erlang},
 	    name=#c_literal{anno=LineAnno,val=Op},args=[A1]},Aps,St1};
 expr({op,L,Op,L0,R0}, St0) ->
     {As,Aps,St1} = safe_list([L0,R0], St0),
-    LineAnno = lineno_anno(L, St1),
+    LineAnno = full_anno(L, St1),
     {#icall{anno=#a{anno=LineAnno},		%Must have an #a{}
 	    module=#c_literal{anno=LineAnno,val=erlang},
 	    name=#c_literal{anno=LineAnno,val=Op},args=As},Aps,St1}.
@@ -734,7 +729,7 @@ make_bool_switch(L, E, V, T, F, #core{}) ->
     make_bool_switch_body(L, E, V, T, F).
 
 make_bool_switch_body(L, E, V, T, F) ->
-    NegL = neg_line(abs_line(L)),
+    NegL = no_compiler_warning(L),
     Error = {tuple,NegL,[{atom,NegL,badarg},V]},
     {'case',NegL,E,
      [{clause,NegL,[{atom,NegL,true}],[],[T]},
@@ -745,90 +740,78 @@ make_bool_switch_body(L, E, V, T, F) ->
 
 make_bool_switch_guard(_, E, _, {atom,_,true}, {atom,_,false}) -> E;
 make_bool_switch_guard(L, E, V, T, F) ->
-    NegL = neg_line(abs_line(L)),
+    NegL = no_compiler_warning(L),
     {'case',NegL,E,
      [{clause,NegL,[{atom,NegL,true}],[],[T]},
       {clause,NegL,[{atom,NegL,false}],[],[F]},
       {clause,NegL,[V],[],[V]}
      ]}.
 
-expr_map(M0,Es0,A,St0) ->
-    {M1,Mps,St1} = safe(M0, St0),
+expr_map(M0, Es0, L, St0) ->
+    {M1,Eps0,St1} = safe(M0, St0),
+    Badmap = badmap_term(M1, St1),
+    A = lineno_anno(L, St1),
+    Fc = fail_clause([], [{eval_failure,badmap}|A], Badmap),
     case is_valid_map_src(M1) of
 	true ->
-	    case {M1,Es0} of
-		{#c_var{}, []} ->
-		    %% transform M#{} to is_map(M)
-		    {Vpat,St2} = new_var(St1),
-		    {Fpat,St3} = new_var(St2),
-		    Cs = [#iclause{
-			   anno=A,
-			   pats=[Vpat],
-			   guard=[#icall{anno=#a{anno=A},
+	    {M2,Eps1,St2} = map_build_pairs(M1, Es0, full_anno(L, St1), St1),
+	    M3 = case Es0 of
+		     [] -> M1;
+		     [_|_] -> M2
+		 end,
+	    Cs = [#iclause{
+		     anno=#a{anno=[compiler_generated|A]},
+		     pats=[],
+		     guard=[#icall{anno=#a{anno=A},
 				   module=#c_literal{anno=A,val=erlang},
 			           name=#c_literal{anno=A,val=is_map},
-				   args=[Vpat]}],
-			   body=[Vpat]}],
-		    Fc = fail_clause([Fpat], A, #c_literal{val=badarg}),
-		    {#icase{anno=#a{anno=A},args=[M1],clauses=Cs,fc=Fc},Mps,St3};
-		{_,_} ->
-		    {Es1,Eps,St2} = map_pair_list(Es0, St1),
-		    {ann_c_map(A,M1,Es1),Mps++Eps,St2}
-	    end;
-	false -> throw({bad_map,bad_map})
+				   args=[M1]}],
+		     body=[M3]}],
+	    Eps = Eps0 ++ Eps1,
+	    {#icase{anno=#a{anno=A},args=[],clauses=Cs,fc=Fc},Eps,St2};
+	false ->
+	    %% Not a map source. The update will always fail.
+	    St2 = add_warning(L, badmap, St1),
+	    #iclause{body=[Fail]} = Fc,
+	    {Fail,Eps0,St2}
     end.
 
+badmap_term(_Map, #core{in_guard=true}) ->
+    %% The code generator cannot handle complex error reasons
+    %% in guards. But the exact error reason does not matter anyway
+    %% since it is not user-visible.
+    #c_literal{val=badmap};
+badmap_term(Map, #core{in_guard=false}) ->
+    #c_tuple{es=[#c_literal{val=badmap},Map]}.
+
+map_build_pairs(Map, Es0, Ann, St0) ->
+    {Es,Pre,St1} = map_build_pairs_1(Es0, St0),
+    {ann_c_map(Ann, Map, Es),Pre,St1}.
+
+map_build_pairs_1([{Op0,L,K0,V0}|Es], St0) ->
+    {K,Pre0,St1} = safe(K0, St0),
+    {V,Pre1,St2} = safe(V0, St1),
+    {Pairs,Pre2,St3} = map_build_pairs_1(Es, St2),
+    As = lineno_anno(L, St3),
+    Op = map_op(Op0),
+    Pair = cerl:ann_c_map_pair(As, Op, K, V),
+    {[Pair|Pairs],Pre0++Pre1++Pre2,St3};
+map_build_pairs_1([], St) ->
+    {[],[],St}.
+
+map_op(map_field_assoc) -> #c_literal{val=assoc};
+map_op(map_field_exact) -> #c_literal{val=exact}.
+
 is_valid_map_src(#c_literal{val = M}) when is_map(M) -> true;
-is_valid_map_src(#c_map{})  -> true;
 is_valid_map_src(#c_var{})  -> true;
 is_valid_map_src(_)         -> false.
 
-map_pair_list(Es, St) ->
-    foldr(fun
-	    ({map_field_assoc,L,K0,V0}, {Ces,Esp,St0}) ->
-		{K1,Ep0,St1} = safe(K0, St0),
-		K = ensure_valid_map_key(K1),
-		{V,Ep1,St2} = safe(V0, St1),
-		A = lineno_anno(L, St2),
-		Pair = #c_map_pair{op=#c_literal{val=assoc},anno=A,key=K,val=V},
-		{[Pair|Ces],Ep0 ++ Ep1 ++ Esp,St2};
-	    ({map_field_exact,L,K0,V0}, {Ces,Esp,St0}) ->
-		{K1,Ep0,St1} = safe(K0, St0),
-		K = ensure_valid_map_key(K1),
-		{V,Ep1,St2} = safe(V0, St1),
-		A = lineno_anno(L, St2),
-		Pair = #c_map_pair{op=#c_literal{val=exact},anno=A,key=K,val=V},
-		{[Pair|Ces],Ep0 ++ Ep1 ++ Esp,St2}
-	end, {[],[],St}, Es).
-
-ensure_valid_map_key(K0) ->
-    case coalesced_map_key(K0) of
-	{ok,K1} -> K1;
-	error   -> throw({bad_map,bad_map_key})
-    end.
-
-coalesced_map_key(#c_literal{}=K) -> {ok,K};
-%% Dialyzer hack redux
-%% DO coalesce tuples and list in maps for dialyzer
-%% Dialyzer tries to break this apart, don't let it
-coalesced_map_key(#c_tuple{}=K) ->
-    case core_lib:is_literal(K) of
-	true  -> {ok,cerl:fold_literal(K)};
-	false -> error
-    end;
-coalesced_map_key(#c_cons{}=K) ->
-    case core_lib:is_literal(K) of
-	true  -> {ok,cerl:fold_literal(K)};
-	false -> error
-    end;
-coalesced_map_key(_) -> error.
-
 %% try_exception([ExcpClause], St) -> {[ExcpVar],Handler,St}.
 
 try_exception(Ecs0, St0) ->
     %% Note that Tag is not needed for rethrow - it is already in Info.
     {Evs,St1} = new_vars(3, St0), % Tag, Value, Info
-    {Ecs1,St2} = clauses(Ecs0, St1),
+    {Ecs1,Ceps,St2} = clauses(Ecs0, St1),
     [_,Value,Info] = Evs,
     Ec = #iclause{anno=#a{anno=[compiler_generated]},
 		  pats=[c_tuple(Evs)],guard=[#c_literal{val=true}],
@@ -836,15 +819,15 @@ try_exception(Ecs0, St0) ->
 				 name=#c_literal{val=raise},
 				 args=[Info,Value]}]},
     Hs = [#icase{anno=#a{},args=[c_tuple(Evs)],clauses=Ecs1,fc=Ec}],
-    {Evs,Hs,St2}.
+    {Evs,Ceps++Hs,St2}.
 
 try_after(As, St0) ->
     %% See above.
-    {Evs,St1} = new_vars(3, St0),		% Tag, Value, Info
+    {Evs,St1} = new_vars(3, St0),	 % Tag, Value, Info
     [_,Value,Info] = Evs,
-    B = As ++ [#iprimop{anno=#a{},       %Must have an #a{}
-			 name=#c_literal{val=raise},
-			 args=[Info,Value]}],
+    B = As ++ [#iprimop{anno=#a{},       % Must have an #a{}
+			name=#c_literal{val=raise},
+			args=[Info,Value]}],
     Ec = #iclause{anno=#a{anno=[compiler_generated]},
 		  pats=[c_tuple(Evs)],guard=[#c_literal{val=true}],
 		  body=B},
@@ -886,10 +869,10 @@ constant_bin_1(Es) ->
 		 ({float,_,F}, B) -> {value,F,B};
 		 ({atom,_,undefined}, B) -> {value,undefined,B}
 	      end,
-    case catch eval_bits:expr_grp(Es, EmptyBindings, EvalFun) of
+    try eval_bits:expr_grp(Es, EmptyBindings, EvalFun) of
 	{value,Bin,EmptyBindings} ->
-	    Bin;
-	_ ->
+	    Bin
+    catch error:_ ->
 	    error
     end.
 
@@ -936,7 +919,7 @@ verify_suitable_fields([]) -> ok.
 %% (We don't need an exact result for this purpose.)
 
 count_bits(Int) -> 
-    count_bits_1(abs_line(Int), 64).
+    count_bits_1(abs(Int), 64).
 
 count_bits_1(0, Bits) -> Bits;
 count_bits_1(Int, Bits) -> count_bits_1(Int bsr 64, Bits+64).
@@ -978,20 +961,21 @@ bitstr({bin_element,_,E0,Size0,[Type,{unit,Unit}|Flags]}, St0) ->
 
 fun_tq({_,_,Name}=Id, Cs0, L, St0, NameInfo) ->
     Arity = clause_arity(hd(Cs0)),
-    {Cs1,St1} = clauses(Cs0, St0),
+    {Cs1,Ceps,St1} = clauses(Cs0, St0),
     {Args,St2} = new_vars(Arity, St1),
     {Ps,St3} = new_vars(Arity, St2),		%Need new variables here
-    Anno = lineno_anno(L, St3),
+    Anno = full_anno(L, St3),
     Fc = function_clause(Ps, Anno, {Name,Arity}),
     Fun = #ifun{anno=#a{anno=Anno},
 		id=[{id,Id}],				%We KNOW!
 		vars=Args,clauses=Cs1,fc=Fc,name=NameInfo},
-    {Fun,[],St3}.
+    {Fun,Ceps,St3}.
 
 %% lc_tq(Line, Exp, [Qualifier], Mc, State) -> {LetRec,[PreExp],State}.
 %%  This TQ from Simon PJ pp 127-138.  
 
-lc_tq(Line, E, [#igen{anno=GAnno,acc_pat=AccPat,acc_guard=AccGuard,
+lc_tq(Line, E, [#igen{anno=GAnno,ceps=Ceps,
+		      acc_pat=AccPat,acc_guard=AccGuard,
                       skip_pat=SkipPat,tail=Tail,tail_pat=TailPat,
                       arg={Pre,Arg}}|Qs], Mc, St0) ->
     {Name,St1} = new_fun_name("lc", St0),
@@ -1026,7 +1010,7 @@ lc_tq(Line, E, [#igen{anno=GAnno,acc_pat=AccPat,acc_guard=AccGuard,
     Fun = #ifun{anno=LAnno,id=[],vars=[Var],clauses=Cs,fc=Fc},
     {#iletrec{anno=LAnno#a{anno=[list_comprehension|LA]},defs=[{{Name,1},Fun}],
               body=Pre ++ [#iapply{anno=LAnno,op=F,args=[Arg]}]},
-     [],St4};
+     Ceps,St4};
 lc_tq(Line, E, [#ifilter{}=Filter|Qs], Mc, St) ->
     filter_tq(Line, E, Filter, Mc, St, Qs, fun lc_tq/5);
 lc_tq(Line, E0, [], Mc0, St0) ->
@@ -1040,7 +1024,7 @@ lc_tq(Line, E0, [], Mc0, St0) ->
 %%  This TQ from Gustafsson ERLANG'05.  
 %%  More could be transformed before calling bc_tq.
 
-bc_tq(Line, Exp, Qs0, _, St0) ->
+bc_tq(Line, Exp, Qs0, St0) ->
     {BinVar,St1} = new_var(St0),
     {Sz,SzPre,St2} = bc_initial_size(Exp, Qs0, St1),
     {Qs,St3} = preprocess_quals(Line, Qs0, St2),
@@ -1051,7 +1035,8 @@ bc_tq(Line, Exp, Qs0, _, St0) ->
 			    args=[Sz]}}] ++ BcPre,
     {E,Pre,St}.
 
-bc_tq1(Line, E, [#igen{anno=GAnno,acc_pat=AccPat,acc_guard=AccGuard,
+bc_tq1(Line, E, [#igen{anno=GAnno,ceps=Ceps,
+		       acc_pat=AccPat,acc_guard=AccGuard,
                        skip_pat=SkipPat,tail=Tail,tail_pat=TailPat,
                        arg={Pre,Arg}}|Qs], Mc, St0) ->
     {Name,St1} = new_fun_name("lbc", St0),
@@ -1089,7 +1074,7 @@ bc_tq1(Line, E, [#igen{anno=GAnno,acc_pat=AccPat,acc_guard=AccGuard,
     Fun = #ifun{anno=LAnno,id=[],vars=Vars,clauses=Cs,fc=Fc},
     {#iletrec{anno=LAnno#a{anno=[list_comprehension|LA]},defs=[{{Name,2},Fun}],
               body=Pre ++ [#iapply{anno=LAnno,op=F,args=[Arg,Mc]}]},
-     [],St4};
+     Ceps,St4};
 bc_tq1(Line, E, [#ifilter{}=Filter|Qs], Mc, St) ->
     filter_tq(Line, E, Filter, Mc, St, Qs, fun bc_tq1/5);
 bc_tq1(_, {bin,Bl,Elements}, [], AccVar, St0) ->
@@ -1153,7 +1138,7 @@ preprocess_quals(Line, [Q|Qs0], St0, Acc) ->
             {Gen,St} = generator(Line, Q, Gs, St0),
             preprocess_quals(Line, Qs, St, [Gen|Acc]);
         false ->
-            LAnno = #a{anno=lineno_anno(get_anno(Q), St0)},
+            LAnno = #a{anno=lineno_anno(get_qual_anno(Q), St0)},
             case is_guard_test(Q) of
                 true ->
                     %% When a filter is a guard test, its argument in the
@@ -1178,6 +1163,11 @@ is_generator({generate,_,_,_}) -> true;
 is_generator({b_generate,_,_,_}) -> true;
 is_generator(_) -> false.
 
+%% Retrieve the annotation from an Erlang AST form.
+%% (Use get_anno/1 to retrieve the annotation from Core Erlang forms).
+
+get_qual_anno(Abstract) -> element(2, Abstract).
+
 %%
 %% Generators are abstracted as sextuplets:
 %%  - acc_pat is the accumulator pattern, e.g. [Pat|Tail] for Pat <- Expr.
@@ -1200,7 +1190,7 @@ is_generator(_) -> false.
 generator(Line, {generate,Lg,P0,E}, Gs, St0) ->
     LA = lineno_anno(Line, St0),
     GA = lineno_anno(Lg, St0),
-    {Head,St1} = list_gen_pattern(P0, Line, St0),
+    {Head,Ceps,St1} = list_gen_pattern(P0, Line, St0),
     {[Tail,Skip],St2} = new_vars(2, St1),
     {Cg,St3} = lc_guard_tests(Gs, St2),
     {AccPat,SkipPat} = case Head of
@@ -1220,25 +1210,27 @@ generator(Line, {generate,Lg,P0,E}, Gs, St0) ->
                                 ann_c_cons(LA, Skip, Tail)}
                        end,
     {Ce,Pre,St4} = safe(E, St3),
-    Gen = #igen{anno=#a{anno=GA},acc_pat=AccPat,acc_guard=Cg,skip_pat=SkipPat,
+    Gen = #igen{anno=#a{anno=GA},ceps=Ceps,
+		acc_pat=AccPat,acc_guard=Cg,skip_pat=SkipPat,
                 tail=Tail,tail_pat=#c_literal{anno=LA,val=[]},arg={Pre,Ce}},
     {Gen,St4};
 generator(Line, {b_generate,Lg,P,E}, Gs, St0) ->
     LA = lineno_anno(Line, St0),
     GA = lineno_anno(Lg, St0),
-    Cp = #c_binary{segments=Segs} = pattern(P, St0),
+    {Cp = #c_binary{segments=Segs},[],St1} = pattern(P, St0),
+    
     %% The function append_tail_segment/2 keeps variable patterns as-is, making
     %% it possible to have the same skip clause removal as with list generators.
-    {AccSegs,Tail,TailSeg,St1} = append_tail_segment(Segs, St0),
+    {AccSegs,Tail,TailSeg,St2} = append_tail_segment(Segs, St1),
     AccPat = Cp#c_binary{segments=AccSegs},
-    {Cg,St2} = lc_guard_tests(Gs, St1),
-    {SkipSegs,St3} = emasculate_segments(AccSegs, St2),
+    {Cg,St3} = lc_guard_tests(Gs, St2),
+    {SkipSegs,St4} = emasculate_segments(AccSegs, St3),
     SkipPat = Cp#c_binary{segments=SkipSegs},
-    {Ce,Pre,St4} = safe(E, St3),
+    {Ce,Pre,St5} = safe(E, St4),
     Gen = #igen{anno=#a{anno=GA},acc_pat=AccPat,acc_guard=Cg,skip_pat=SkipPat,
                 tail=Tail,tail_pat=#c_binary{anno=LA,segments=[TailSeg]},
                 arg={Pre,Ce}},
-    {Gen,St4}.
+    {Gen,St5}.
 
 append_tail_segment(Segs, St0) ->
     {Var,St} = new_var(St0),
@@ -1267,9 +1259,9 @@ lc_guard_tests(Gs0, St0) ->
 
 list_gen_pattern(P0, Line, St) ->
     try
-	{pattern(P0, St),St}
+	pattern(P0,St)
     catch 
-	nomatch -> {nomatch,add_warning(Line, nomatch, St)}
+	nomatch -> {nomatch,[],add_warning(Line, nomatch, St)}
     end.
 
 %%%
@@ -1489,9 +1481,22 @@ force_novars(#iapply{}=App, St) -> {App,[],St};
 force_novars(#icall{}=Call, St) -> {Call,[],St};
 force_novars(#ifun{}=Fun, St) -> {Fun,[],St};	%These are novars too
 force_novars(#ibinary{}=Bin, St) -> {Bin,[],St};
+force_novars(#c_map{}=Bin, St) -> {Bin,[],St};
 force_novars(Ce, St) ->
     force_safe(Ce, St).
 
+
+%% safe_pattern_expr(Expr, State) -> {Cexpr,[PreExpr],State}.
+%%   only literals and variables are safe expressions in patterns
+safe_pattern_expr(E,St0) ->
+    case safe(E,St0) of
+	{#c_var{},_,_}=Safe -> Safe;
+	{#c_literal{},_,_}=Safe -> Safe;
+	{Ce,Eps,St1} ->
+	    {V,St2} = new_var(St1),
+	    {V,Eps++[#iset{var=V,arg=Ce}],St2}
+    end.
+
 %% safe(Expr, State) -> {Safe,[PreExpr],State}.
 %%  Generate an internal safe expression.  These are simples without
 %%  binaries which can fail.  At this level we do not need to do a
@@ -1566,90 +1571,90 @@ fold_match({match,L,P0,E0}, P) ->
     {{match,L,P0,P1},E1};
 fold_match(E, P) -> {P,E}.
 
-%% pattern(Pattern, State) -> CorePat.
+%% pattern(Pattern, State) -> {CorePat,[PreExp],State}.
 %% Transform a pattern by removing line numbers.  We also normalise
 %% aliases in patterns to standard form, {alias,Pat,[Var]}.
-
-pattern({var,L,V}, St) -> #c_var{anno=lineno_anno(L, St),name=V};
-pattern({char,L,C}, St) -> #c_literal{anno=lineno_anno(L, St),val=C};
-pattern({integer,L,I}, St) -> #c_literal{anno=lineno_anno(L, St),val=I};
-pattern({float,L,F}, St) -> #c_literal{anno=lineno_anno(L, St),val=F};
-pattern({atom,L,A}, St) -> #c_literal{anno=lineno_anno(L, St),val=A};
-pattern({string,L,S}, St) -> #c_literal{anno=lineno_anno(L, St),val=S};
-pattern({nil,L}, St) -> #c_literal{anno=lineno_anno(L, St),val=[]};
+%%
+%% In patterns we may have expressions
+%% 1) Binaries -> #c_bitstr{size=Expr}
+%% 2) Maps -> #c_map_pair{key=Expr}
+%%
+%% Both of these may generate pre-expressions since only bound variables
+%% or literals are allowed for these in core patterns.
+%%
+%% Therefor, we need to drag both the state and the collection of pre-expression
+%% around in the whole pattern transformation tree.
+
+pattern({var,L,V}, St) -> {#c_var{anno=lineno_anno(L, St),name=V},[],St};
+pattern({char,L,C}, St) -> {#c_literal{anno=lineno_anno(L, St),val=C},[],St};
+pattern({integer,L,I}, St) -> {#c_literal{anno=lineno_anno(L, St),val=I},[],St};
+pattern({float,L,F}, St) -> {#c_literal{anno=lineno_anno(L, St),val=F},[],St};
+pattern({atom,L,A}, St) -> {#c_literal{anno=lineno_anno(L, St),val=A},[],St};
+pattern({string,L,S}, St) -> {#c_literal{anno=lineno_anno(L, St),val=S},[],St};
+pattern({nil,L}, St) -> {#c_literal{anno=lineno_anno(L, St),val=[]},[],St};
 pattern({cons,L,H,T}, St) ->
-    annotate_cons(lineno_anno(L, St), pattern(H, St), pattern(T, St), St);
+    {Ph,Eps1,St1} = pattern(H, St),
+    {Pt,Eps2,St2} = pattern(T, St1),
+    {annotate_cons(lineno_anno(L, St), Ph, Pt, St2),Eps1++Eps2,St2};
 pattern({tuple,L,Ps}, St) ->
-    annotate_tuple(record_anno(L, St), pattern_list(Ps, St), St);
-pattern({map,L,Ps}, St) ->
-    #c_map{anno=lineno_anno(L, St), es=pattern_map_pairs(Ps, St)};
+    {Ps1,Eps,St1} = pattern_list(Ps,St),
+    {annotate_tuple(record_anno(L, St), Ps1, St),Eps,St1};
+pattern({map,L,Pairs}, St0) ->
+    {Ps,Eps,St1} = pattern_map_pairs(Pairs, St0),
+    {#c_map{anno=lineno_anno(L, St1),es=Ps,is_pat=true},Eps,St1};
 pattern({bin,L,Ps}, St) ->
     %% We don't create a #ibinary record here, since there is
     %% no need to hold any used/new annotations in a pattern.
-    #c_binary{anno=lineno_anno(L, St),segments=pat_bin(Ps, St)};
+    {#c_binary{anno=lineno_anno(L, St),segments=pat_bin(Ps, St)},[],St};
 pattern({match,_,P1,P2}, St) ->
-    pat_alias(pattern(P1, St), pattern(P2, St)).
+    {Cp1,Eps1,St1} = pattern(P1,St),
+    {Cp2,Eps2,St2} = pattern(P2,St1),
+    {pat_alias(Cp1,Cp2),Eps1++Eps2,St2}.
 
 %% pattern_map_pairs([MapFieldExact],State) -> [#c_map_pairs{}]
 pattern_map_pairs(Ps, St) ->
-    %% check literal key uniqueness (dict is needed)
-    %% pattern all pairs
-    {CMapPairs, Kdb} = lists:mapfoldl(fun
-	    (P,Kdbi) ->
-		#c_map_pair{key=Ck,val=Cv} = CMapPair = pattern_map_pair(P,St),
-		K = core_lib:literal_value(Ck),
-		case dict:find(K,Kdbi) of
-		    {ok, Vs} ->
-			{CMapPair, dict:store(K,[Cv|Vs],Kdbi)};
-		    _ ->
-			{CMapPair, dict:store(K,[Cv],Kdbi)}
-		end
-	end, dict:new(), Ps),
-    pattern_alias_map_pairs(CMapPairs,Kdb,dict:new(),St).
-
-pattern_alias_map_pairs([],_,_,_) -> [];
-pattern_alias_map_pairs([#c_map_pair{key=Ck}=Pair|Pairs],Kdb,Kset,St) ->
-    %% alias same keys if needed
-    K = core_lib:literal_value(Ck),
-    case dict:find(K,Kset) of
-	{ok,processed} ->
-	    pattern_alias_map_pairs(Pairs,Kdb,Kset,St);
-	_ ->
-	    Cvs = dict:fetch(K,Kdb),
-	    Cv = pattern_alias_map_pair_patterns(Cvs),
-	    Kset1 = dict:store(K, processed, Kset),
-	    [Pair#c_map_pair{val=Cv}|pattern_alias_map_pairs(Pairs,Kdb,Kset1,St)]
-    end.
-
-pattern_alias_map_pair_patterns([Cv]) -> Cv;
-pattern_alias_map_pair_patterns([Cv1,Cv2|Cvs]) ->
-    pattern_alias_map_pair_patterns([pat_alias(Cv1,Cv2)|Cvs]).
-
-pattern_map_pair({map_field_exact,L,K,V},St) ->
-    #c_map_pair{anno=lineno_anno(L, St),
-		op=#c_literal{val=exact},
-		key=pattern_map_key(K,St),
-		val=pattern(V, St)}.
-
-pattern_map_key(K,St) ->
-    %% Throws 'nomatch' if the key can't be a literal
-    %% this will be a cryptic error message but it is better than nothing
-    case expr(K,St) of
-	{Key0,[],_} ->
-	    %% Dialyzer hack redux
-	    case coalesced_map_key(Key0) of
-		{ok,Key1} -> Key1;
-		error     -> throw(nomatch)
-	    end;
-	_ -> throw(nomatch)
-    end.
+    %% check literal key uniqueness
+    %%   - guaranteed via aliasing map pairs
+    %% pattern all pairs in two steps
+    %% 1) Construct Core Pattern
+    %% 2) Alias Keys in Core Pattern
+    {CMapPairs, {Eps,St1}} = lists:mapfoldl(fun
+	    (P,{EpsM,Sti0}) ->
+		{CMapPair,EpsP,Sti1} = pattern_map_pair(P,Sti0),
+		{CMapPair, {EpsM++EpsP,Sti1}}
+	end, {[],St}, Ps),
+    {pat_alias_map_pairs(CMapPairs),Eps,St1}.
+
+pattern_map_pair({map_field_exact,L,K,V}, St0) ->
+    {Ck,EpsK,St1} = safe_pattern_expr(K, St0),
+    {Cv,EpsV,St2} = pattern(V, St1),
+    {#c_map_pair{anno=lineno_anno(L, St2),
+		 op=#c_literal{val=exact},
+		 key=Ck,
+		 val=Cv},EpsK++EpsV,St2}.
+
+pat_alias_map_pairs(Ps) ->
+    D = foldl(fun(#c_map_pair{key=K0}=Pair, D0) ->
+		      K = cerl:set_ann(K0, []),
+		      dict:append(K, Pair, D0)
+	      end, dict:new(), Ps),
+    pat_alias_map_pairs_1(dict:to_list(D)).
+
+pat_alias_map_pairs_1([{_,[#c_map_pair{val=V0}=Pair|Vs]}|T]) ->
+    V = foldl(fun(#c_map_pair{val=V}, Pat) ->
+		      pat_alias(V, Pat)
+	      end, V0, Vs),
+    [Pair#c_map_pair{val=V}|pat_alias_map_pairs_1(T)];
+pat_alias_map_pairs_1([]) -> [].
 
 %% pat_bin([BinElement], State) -> [BinSeg].
 
 pat_bin(Ps, St) -> [pat_segment(P, St) || P <- Ps].
 
-pat_segment({bin_element,_,Term,Size,[Type,{unit,Unit}|Flags]}, St) ->
-    #c_bitstr{val=pattern(Term, St),size=pattern(Size, St),
+pat_segment({bin_element,_,Val,Size,[Type,{unit,Unit}|Flags]}, St) ->
+    {Pval,[],St1} = pattern(Val,St),
+    {Psize,[],_St2} = pattern(Size,St1),
+    #c_bitstr{val=Pval,size=Psize,
 	      unit=#c_literal{val=Unit},
 	      type=#c_literal{val=Type},
 	      flags=#c_literal{val=Flags}}.
@@ -1657,38 +1662,55 @@ pat_segment({bin_element,_,Term,Size,[Type,{unit,Unit}|Flags]}, St) ->
 %% pat_alias(CorePat, CorePat) -> AliasPat.
 %%  Normalise aliases.  Trap bad aliases by throwing 'nomatch'.
 
-pat_alias(#c_var{name=V1}, P2) -> #c_alias{var=#c_var{name=V1},pat=P2};
-pat_alias(P1, #c_var{name=V2}) -> #c_alias{var=#c_var{name=V2},pat=P1};
-pat_alias(#c_cons{}=Cons, #c_literal{anno=A,val=[H|T]}=S) ->
-    pat_alias(Cons, ann_c_cons_skel(A, #c_literal{anno=A,val=H},
-				    S#c_literal{val=T}));
-pat_alias(#c_literal{anno=A,val=[H|T]}=S, #c_cons{}=Cons) ->
-    pat_alias(ann_c_cons_skel(A, #c_literal{anno=A,val=H},
-			      S#c_literal{val=T}), Cons);
-pat_alias(#c_cons{anno=Anno,hd=H1,tl=T1}, #c_cons{hd=H2,tl=T2}) ->
-    ann_c_cons(Anno, pat_alias(H1, H2), pat_alias(T1, T2));
-pat_alias(#c_tuple{anno=Anno,es=Es1}, #c_literal{val=T}) when is_tuple(T) ->
-    Es2 = [#c_literal{val=E} || E <- tuple_to_list(T)],
-    ann_c_tuple(Anno, pat_alias_list(Es1, Es2));
-pat_alias(#c_literal{anno=Anno,val=T}, #c_tuple{es=Es2}) when is_tuple(T) ->
-    Es1 = [#c_literal{val=E} || E <- tuple_to_list(T)],
-    ann_c_tuple(Anno, pat_alias_list(Es1, Es2));
-pat_alias(#c_tuple{anno=Anno,es=Es1}, #c_tuple{es=Es2}) ->
-    ann_c_tuple(Anno, pat_alias_list(Es1, Es2));
-pat_alias(#c_alias{var=V1,pat=P1},
-	  #c_alias{var=V2,pat=P2}) ->
-    if V1 =:= V2 -> #c_alias{var=V1,pat=pat_alias(P1, P2)};
-       true -> #c_alias{var=V1,pat=#c_alias{var=V2,pat=pat_alias(P1, P2)}}
+pat_alias(#c_var{name=V1}=P, #c_var{name=V1}) -> P;
+pat_alias(#c_var{name=V1}=Var,
+	  #c_alias{var=#c_var{name=V2},pat=Pat}=Alias) ->
+    if
+	V1 =:= V2 ->
+	    Alias;
+	true ->
+	    Alias#c_alias{pat=pat_alias(Var, Pat)}
+    end;
+pat_alias(#c_var{}=P1, P2) -> #c_alias{var=P1,pat=P2};
+
+pat_alias(#c_alias{var=#c_var{name=V1}}=Alias, #c_var{name=V1}) ->
+    Alias;
+pat_alias(#c_alias{var=#c_var{name=V1}=Var1,pat=P1},
+	  #c_alias{var=#c_var{name=V2}=Var2,pat=P2}) ->
+    Pat = pat_alias(P1, P2),
+    if
+	V1 =:= V2 ->
+	    #c_alias{var=Var1,pat=Pat};
+	true ->
+	    pat_alias(Var1, pat_alias(Var2, Pat))
     end;
-pat_alias(#c_alias{var=V1,pat=P1}, P2) ->
-    #c_alias{var=V1,pat=pat_alias(P1, P2)};
-pat_alias(P1, #c_alias{var=V2,pat=P2}) ->
-    #c_alias{var=V2,pat=pat_alias(P1, P2)};
+pat_alias(#c_alias{var=#c_var{}=Var,pat=P1}, P2) ->
+    #c_alias{var=Var,pat=pat_alias(P1, P2)};
+
+pat_alias(#c_map{es=Es1}=M, #c_map{es=Es2}) ->
+    M#c_map{es=pat_alias_map_pairs(Es1 ++ Es2)};
+
+pat_alias(P1, #c_var{}=Var) ->
+    #c_alias{var=Var,pat=P1};
+pat_alias(P1, #c_alias{pat=P2}=Alias) ->
+    Alias#c_alias{pat=pat_alias(P1, P2)};
+
 pat_alias(P1, P2) ->
-    case {set_anno(P1, []),set_anno(P2, [])} of
-	{P,P} -> P;
+    %% Aliases between binaries are not allowed, so the only
+    %% legal patterns that remain are data patterns.
+    case cerl:is_data(P1) andalso cerl:is_data(P2) of
+	false -> throw(nomatch);
+	true -> ok
+    end,
+    Type = cerl:data_type(P1),
+    case cerl:data_type(P2) of
+	Type -> ok;
 	_ -> throw(nomatch)
-    end.
+    end,
+    Es1 = cerl:data_es(P1),
+    Es2 = cerl:data_es(P2),
+    Es = pat_alias_list(Es1, Es2),
+    cerl:make_data(Type, Es).
 
 %% pat_alias_list([A1], [A2]) -> [A].
 
@@ -1697,9 +1719,15 @@ pat_alias_list([A1|A1s], [A2|A2s]) ->
 pat_alias_list([], []) -> [];
 pat_alias_list(_, _) -> throw(nomatch).
 
-%% pattern_list([P], State) -> [P].
+%% pattern_list([P], State) -> {[P],Exprs,St}
+
+pattern_list([P0|Ps0], St0) ->
+    {P1,Eps,St1} = pattern(P0, St0),
+    {Ps1,Epsl,St2} = pattern_list(Ps0, St1),
+    {[P1|Ps1], Eps ++ Epsl, St2};
+pattern_list([], St) ->
+    {[],[],St}.
 
-pattern_list(Ps, St) -> [pattern(P, St) || P <- Ps].
 
 %% make_vars([Name]) -> [{Var,Name}].
 
@@ -1721,7 +1749,7 @@ new_var_name(#core{vcount=C}=St) ->
 new_var(St) ->
     new_var([], St).
 
-new_var(Anno, St0) ->
+new_var(Anno, St0) when is_list(Anno) ->
     {New,St} = new_var_name(St0),
     {#c_var{anno=Anno,name=New},St}.
 
@@ -1779,7 +1807,7 @@ uclauses(Lcs, Ks, St0) ->
 
 uclause(Cl0, Ks, St0) ->
     {Cl1,_Pvs,Used,New,St1} = uclause(Cl0, Ks, Ks, St0),
-    A0 = get_ianno(Cl1),
+    A0 = get_anno(Cl1),
     A = A0#a{us=Used,ns=New},
     {Cl1#iclause{anno=A},St1}.
 
@@ -1948,11 +1976,11 @@ uexpr(#ibinary{anno=A,segments=Ss}, _, St) ->
 uexpr(#c_literal{}=Lit, _, St) ->
     Anno = get_anno(Lit),
     {set_anno(Lit, #a{us=[],anno=Anno}),St};
-uexpr(Lit, _, St) ->
-    true = is_simple(Lit),			%Sanity check!
-    Vs = lit_vars(Lit),
-    Anno = get_anno(Lit),
-    {set_anno(Lit, #a{us=Vs,anno=Anno}),St}.
+uexpr(Simple, _, St) ->
+    true = is_simple(Simple),			%Sanity check!
+    Vs = lit_vars(Simple),
+    Anno = get_anno(Simple),
+    {#isimple{anno=#a{us=Vs,anno=Anno},term=Simple},St}.
 
 uexpr_list(Les0, Ks, St0) ->
     mapfoldl(fun (Le, St) -> uexpr(Le, Ks, St) end, St0, Les0).
@@ -1966,7 +1994,7 @@ ufun_clauses(Lcs, Ks, St0) ->
 
 ufun_clause(Cl0, Ks, St0) ->
     {Cl1,Pvs,Used,_,St1} = uclause(Cl0, [], Ks, St0),
-    A0 = get_ianno(Cl1),
+    A0 = get_anno(Cl1),
     A = A0#a{us=subtract(intersection(Used, Ks), Pvs),ns=[]},
     {Cl1#iclause{anno=A},St1}.
 
@@ -1999,9 +2027,14 @@ upattern(#c_tuple{es=Es0}=Tuple, Ks, St0) ->
 upattern(#c_map{es=Es0}=Map, Ks, St0) ->
     {Es1,Esg,Esv,Eus,St1} = upattern_list(Es0, Ks, St0),
     {Map#c_map{es=Es1},Esg,Esv,Eus,St1};
-upattern(#c_map_pair{op=#c_literal{val=exact},val=V0}=MapPair, Ks, St0) ->
-    {V,Vg,Vv,Vu,St1} = upattern(V0, Ks, St0),
-    {MapPair#c_map_pair{val=V},Vg,Vv,Vu,St1};
+upattern(#c_map_pair{op=#c_literal{val=exact},key=K0,val=V0}=Pair,Ks,St0) ->
+    {V,Vg,Vn,Vu,St1} = upattern(V0, Ks, St0),
+    % A variable key must be considered used here
+    Ku = case K0 of
+	#c_var{name=Name} -> [Name];
+	_ -> []
+    end,
+    {Pair#c_map_pair{val=V},Vg,Vn,union(Ku,Vu),St1};
 upattern(#c_binary{segments=Es0}=Bin, Ks, St0) ->
     {Es1,Esg,Esv,Eus,St1} = upat_bin(Es0, Ks, St0),
     {Bin#c_binary{segments=Es1},Esg,Esv,Eus,St1};
@@ -2124,7 +2157,8 @@ cguard(Gs, St0) ->
 
 cexprs([#iset{var=#c_var{name=Name}=Var}=Iset], As, St) ->
     %% Make return value explicit, and make Var true top level.
-    cexprs([Iset,Var#c_var{anno=#a{us=[Name]}}], As, St);
+    Isimple = #isimple{anno=#a{us=[Name]},term=Var},
+    cexprs([Iset,Isimple], As, St);
 cexprs([Le], As, St0) ->
     {Ce,Es,Us,St1} = cexpr(Le, As, St0),
     Exp = make_vars(As),			%The export variables
@@ -2239,12 +2273,9 @@ cexpr(#c_literal{}=Lit, _As, St) ->
     Anno = get_anno(Lit),
     Vs = Anno#a.us,
     {set_anno(Lit, Anno#a.anno),[],Vs,St};
-cexpr(Lit, _As, St) ->
-    true = is_simple(Lit),		%Sanity check!
-    Anno = get_anno(Lit),
-    Vs = Anno#a.us,
-    %%Vs = lit_vars(Lit),
-    {set_anno(Lit, Anno#a.anno),[],Vs,St}.
+cexpr(#isimple{anno=#a{us=Vs},term=Simple}, _As, St) ->
+    true = is_simple(Simple),		%Sanity check!
+    {Simple,[],Vs,St}.
 
 cfun(#ifun{anno=A,id=Id,vars=Args,clauses=Lcs,fc=Lfc}, _As, St0) ->
     {Ccs,St1} = cclauses(Lcs, [], St0),     %NEVER export!
@@ -2267,11 +2298,6 @@ lit_vars(#c_map_pair{key=K,val=V}, Vs) -> lit_vars(K, lit_vars(V, Vs));
 lit_vars(#c_var{name=V}, Vs) -> add_element(V, Vs); 
 lit_vars(_, Vs) -> Vs.				%These are atomic
 
-% lit_bin_vars(Segs, Vs) ->
-%     foldl(fun (#c_bitstr{val=V,size=S}, Vs0) ->
-% 		  lit_vars(V, lit_vars(S, Vs0))
-% 	  end, Vs, Segs).
-
 lit_list_vars(Ls) -> lit_list_vars(Ls, []).
 
 lit_list_vars(Ls, Vs) ->
@@ -2285,37 +2311,26 @@ bitstr_vars(Segs, Vs) ->
  		  lit_vars(V, lit_vars(S, Vs0))
 	  end, Vs, Segs).
 
-record_anno(L, St) when L >= ?REC_OFFSET ->
-    case member(dialyzer, St#core.opts) of
-        true ->
-            [record | lineno_anno(L - ?REC_OFFSET, St)];
-        false ->
-            lineno_anno(L, St)
-    end;
-record_anno(L, St) when L < -?REC_OFFSET ->
-    case member(dialyzer, St#core.opts) of
+record_anno(L, St) ->
+    case
+        erl_anno:record(L) andalso member(dialyzer, St#core.opts)
+    of
         true ->
-            [record | lineno_anno(L + ?REC_OFFSET, St)];
+            [record | lineno_anno(L, St)];
         false ->
-            lineno_anno(L, St)
-    end;
-record_anno(L, St) ->
+            full_anno(L, St)
+    end.
+
+full_anno(L, #core{wanted=false}=St) ->
+    [result_not_wanted|lineno_anno(L, St)];
+full_anno(L, #core{wanted=true}=St) ->
     lineno_anno(L, St).
 
 lineno_anno(L, St) ->
-    {line, Line} = erl_parse:get_attribute(L, line),
-    if
-	Line < 0 ->
-	    [-Line] ++ St#core.file ++ [compiler_generated];
-	true ->
-	    [Line] ++ St#core.file
-    end.
-
-get_ianno(Ce) ->
-    case get_anno(Ce) of
-	#a{}=A -> A;
-	A when is_list(A) -> #a{anno=A}
-    end.
+    Line = erl_anno:line(L),
+    Generated = erl_anno:generated(L),
+    CompilerGenerated = [compiler_generated || Generated],
+    [Line] ++ St#core.file ++ CompilerGenerated.
 
 get_lineno_anno(Ce) ->
     case get_anno(Ce) of
@@ -2323,15 +2338,8 @@ get_lineno_anno(Ce) ->
 	A when is_list(A) -> A
     end.
 
-location(L) ->
-    {location,Location} = erl_parse:get_attribute(L, location),
-    Location.
-
-abs_line(L) ->
-    erl_parse:set_line(L, fun(Line) -> abs(Line) end).
-
-neg_line(L) ->
-    erl_parse:set_line(L, fun(Line) -> -abs(Line) end).
+no_compiler_warning(Anno) ->
+    erl_anno:set_generated(true, Anno).
 
 %%
 %% The following three functions are used both with cerl:cerl() and with i()'s
@@ -2372,11 +2380,13 @@ format_error(nomatch) ->
     "pattern cannot possibly match";
 format_error(bad_binary) ->
     "binary construction will fail because of a type mismatch";
-format_error(bad_map_key) ->
-    "map construction will fail because of none literal key (large binaries are not literals)";
-format_error(bad_map) ->
+format_error(badmap) ->
     "map construction will fail because of a type mismatch".
 
-add_warning(Line, Term, #core{ws=Ws,file=[{file,File}]}=St) when Line >= 0 ->
-    St#core{ws=[{File,[{location(Line),?MODULE,Term}]}|Ws]};
-add_warning(_, _, St) -> St.
+add_warning(Anno, Term, #core{ws=Ws,file=[{file,File}]}=St) ->
+    case erl_anno:generated(Anno) of
+        false ->
+            St#core{ws=[{File,[{erl_anno:location(Anno),?MODULE,Term}]}|Ws]};
+        true ->
+            St
+    end.
diff --git a/lib/compiler/src/v3_kernel.erl b/lib/compiler/src/v3_kernel.erl
index 40d2f72b4c..c21b2a1505 100644
--- a/lib/compiler/src/v3_kernel.erl
+++ b/lib/compiler/src/v3_kernel.erl
@@ -114,7 +114,7 @@ copy_anno(Kdst, Ksrc) ->
 	       ff,				%Current function
 	       vcount=0,			%Variable counter
 	       fcount=0,			%Fun counter
-	       ds=[],				%Defined variables
+               ds=cerl_sets:new() :: cerl_sets:set(), %Defined variables
 	       funs=[],				%Fun functions
 	       free=[],				%Free variables
 	       ws=[]   :: [warning()],		%Warnings.
@@ -131,12 +131,12 @@ module(#c_module{anno=A,name=M,exports=Es,attrs=As,defs=Fs}, _Options) ->
     {ok,#k_mdef{anno=A,name=M#c_literal.val,exports=Kes,attributes=Kas,
 		body=Kfs ++ St#kern.funs},lists:sort(St#kern.ws)}.
 
-attributes([{#c_literal{val=Name},Val}|As]) ->
+attributes([{#c_literal{val=Name},#c_literal{val=Val}}|As]) ->
     case include_attribute(Name) of
 	false ->
 	    attributes(As);
 	true ->
-	    [{Name,core_lib:literal_value(Val)}|attributes(As)]
+	    [{Name,Val}|attributes(As)]
     end;
 attributes([]) -> [].
 
@@ -148,7 +148,7 @@ include_attribute(_) -> true.
 
 function({#c_var{name={F,Arity}=FA},Body}, St0) ->
     try
-	St1 = St0#kern{func=FA,ff=undefined,vcount=0,fcount=0,ds=sets:new()},
+	St1 = St0#kern{func=FA,ff=undefined,vcount=0,fcount=0,ds=cerl_sets:new()},
 	{#ifun{anno=Ab,vars=Kvs,body=B0},[],St2} = expr(Body, new_sub(), St1),
 	{B1,_,St3} = ubody(B0, return, St2),
 	%%B1 = B0, St3 = St2,				%Null second pass
@@ -273,17 +273,7 @@ expr(#c_tuple{anno=A,es=Ces}, Sub, St0) ->
     {Kes,Ep,St1} = atomic_list(Ces, Sub, St0),
     {#k_tuple{anno=A,es=Kes},Ep,St1};
 expr(#c_map{anno=A,arg=Var,es=Ces}, Sub, St0) ->
-    try expr_map(A,Var,Ces,Sub,St0) of
-	{_,_,_}=Res -> Res
-    catch
-	throw:bad_map ->
-	    St1 = add_warning(get_line(A), bad_map, A, St0),
-	    Erl = #c_literal{val=erlang},
-	    Name = #c_literal{val=error},
-	    Args = [#c_literal{val=badarg}],
-	    Error = #c_call{anno=A,module=Erl,name=Name,args=Args},
-	    expr(Error, Sub, St1)
-    end;
+    expr_map(A, Var, Ces, Sub, St0);
 expr(#c_binary{anno=A,segments=Cv}, Sub, St0) ->
     try atomic_bin(Cv, Sub, St0) of
 	{Kv,Ep,St1} ->
@@ -506,82 +496,87 @@ translate_fc(Args) ->
     [#c_literal{val=function_clause},make_list(Args)].
 
 expr_map(A,Var0,Ces,Sub,St0) ->
-    %% An extra pass of validation of Map src because of inlining
     {Var,Mps,St1} = expr(Var0, Sub, St0),
-    case is_valid_map_src(Var) of
-	true ->
-	    {Km,Eps,St2} = map_split_pairs(A, Var, Ces, Sub, St1),
-	    {Km,Eps++Mps,St2};
-	false -> throw(bad_map)
-    end.
-
-is_valid_map_src(#k_map{}) -> true;
-is_valid_map_src(#k_literal{val=M}) when is_map(M) -> true;
-is_valid_map_src(#k_var{}) -> true;
-is_valid_map_src(_) -> false.
+    {Km,Eps,St2} = map_split_pairs(A, Var, Ces, Sub, St1),
+    {Km,Eps++Mps,St2}.
 
 map_split_pairs(A, Var, Ces, Sub, St0) ->
-    %% two steps
-    %% 1. force variables
-    %% 2. remove multiples
-    Pairs0 = [{Op,K,V} || #c_map_pair{op=#c_literal{val=Op},key=K,val=V} <- Ces],
+    %% 1. Force variables.
+    %% 2. Group adjacent pairs with literal keys.
+    %% 3. Within each such group, remove multiple assignments to the same key.
+    %% 4. Partition each group according to operator ('=>' and ':=').
+    Pairs0 = [{Op,K,V} ||
+		 #c_map_pair{op=#c_literal{val=Op},key=K,val=V} <- Ces],
     {Pairs,Esp,St1} = foldr(fun
 	    ({Op,K0,V0}, {Ops,Espi,Sti0}) when Op =:= assoc; Op =:= exact ->
-		{K,[],Sti1} = expr(K0, Sub, Sti0),
-		{V,Ep,Sti2} = atomic(V0, Sub, Sti1),
-		{[{Op,K,V}|Ops],Ep ++ Espi,Sti2}
+		{K,Eps1,Sti1} = atomic(K0, Sub, Sti0),
+		{V,Eps2,Sti2} = atomic(V0, Sub, Sti1),
+		{[{Op,K,V}|Ops],Eps1 ++ Eps2 ++ Espi,Sti2}
 	end, {[],[],St0}, Pairs0),
-
-    case map_group_pairs(Pairs) of
-	{Assoc,[]} ->
-	    Kes = [#k_map_pair{key=K,val=V}||{_,{assoc,K,V}} <- Assoc],
-	    {#k_map{anno=A,op=assoc,var=Var,es=Kes},Esp,St1};
-	{[],Exact} ->
-	    Kes = [#k_map_pair{key=K,val=V}||{_,{exact,K,V}} <- Exact],
-	    {#k_map{anno=A,op=exact,var=Var,es=Kes},Esp,St1};
-	{Assoc,Exact} ->
-	    Kes1 = [#k_map_pair{key=K,val=V}||{_,{assoc,K,V}} <- Assoc],
-	    {Mvar,Em,St2} = force_atomic(#k_map{anno=A,op=assoc,var=Var,es=Kes1},St1),
-	    Kes2 = [#k_map_pair{key=K,val=V}||{_,{exact,K,V}} <- Exact],
-	    {#k_map{anno=A,op=exact,var=Mvar,es=Kes2},Esp ++ Em,St2}
-
+    map_split_pairs_1(A, Var, Pairs, Esp, St1).
+
+map_split_pairs_1(A, Map0, [{Op,Key,Val}|Pairs1]=Pairs0, Esp0, St0) ->
+    {Map1,Em,St1} = force_atomic(Map0, St0),
+    case Key of
+	#k_var{} ->
+	    %% Don't combine variable keys with other keys.
+	    Kes = [#k_map_pair{key=Key,val=Val}],
+	    Map = #k_map{anno=A,op=Op,var=Map1,es=Kes},
+	    map_split_pairs_1(A, Map, Pairs1, Esp0 ++ Em, St1);
+	_ ->
+	    %% Literal key. Split off all literal keys.
+	    {L,Pairs} = splitwith(fun({_,#k_var{},_}) -> false;
+				     ({_,_,_}) -> true
+				  end, Pairs0),
+	    {Map,Esp,St2} = map_group_pairs(A, Map1, L, Esp0 ++ Em, St1),
+	    map_split_pairs_1(A, Map, Pairs, Esp, St2)
+    end;
+map_split_pairs_1(_, Map, [], Esp, St0) ->
+    {Map,Esp,St0}.
+
+map_group_pairs(A, Var, Pairs0, Esp, St0) ->
+    Pairs = map_remove_dup_keys(Pairs0),
+    Assoc = [#k_map_pair{key=K,val=V} || {_,{assoc,K,V}} <- Pairs],
+    Exact = [#k_map_pair{key=K,val=V} || {_,{exact,K,V}} <- Pairs],
+    case {Assoc,Exact} of
+	{[_|_],[]} ->
+	    {#k_map{anno=A,op=assoc,var=Var,es=Assoc},Esp,St0};
+	{[],[_|_]} ->
+	    {#k_map{anno=A,op=exact,var=Var,es=Exact},Esp,St0};
+	{[_|_],[_|_]} ->
+	    Map = #k_map{anno=A,op=assoc,var=Var,es=Assoc},
+	    {Mvar,Em,St1} = force_atomic(Map, St0),
+	    {#k_map{anno=A,op=exact,var=Mvar,es=Exact},Esp ++ Em,St1}
     end.
 
-%% Group map by Assoc operations and Exact operations
+map_remove_dup_keys(Es) ->
+    dict:to_list(map_remove_dup_keys(Es, dict:new())).
 
-map_group_pairs(Es) ->
-    Groups = dict:to_list(map_group_pairs(Es,dict:new())),
-    partition(fun({_,{Op,_,_}}) -> Op =:= assoc end, Groups).
-
-map_group_pairs([{assoc,K,V}|Es0],Used0) ->
-    Used1 = case map_key_is_used(K,Used0) of
-	{ok, {assoc,_,_}} -> map_key_set_used(K,{assoc,K,V},Used0);
-	{ok, {exact,_,_}} -> map_key_set_used(K,{exact,K,V},Used0);
-	_                 -> map_key_set_used(K,{assoc,K,V},Used0)
-    end,
-    map_group_pairs(Es0,Used1);
-map_group_pairs([{exact,K,V}|Es0],Used0) ->
-    Used1 = case map_key_is_used(K,Used0) of
-	{ok, {assoc,_,_}} -> map_key_set_used(K,{assoc,K,V},Used0);
-	{ok, {exact,_,_}} -> map_key_set_used(K,{exact,K,V},Used0);
-	_                 -> map_key_set_used(K,{exact,K,V},Used0)
-    end,
-    map_group_pairs(Es0,Used1);
-map_group_pairs([],Used) ->
-    Used.
-
-map_key_set_used(K,How,Used) ->
-    dict:store(map_key_clean(K),How,Used).
-
-map_key_is_used(K,Used) ->
-    dict:find(map_key_clean(K),Used).
+map_remove_dup_keys([{assoc,K0,V}|Es0],Used0) ->
+    K = map_key_clean(K0),
+    Op = case dict:find(K, Used0) of
+	     {ok,{exact,_,_}} -> exact;
+	     _                -> assoc
+	 end,
+    Used1 = dict:store(K, {Op,K0,V}, Used0),
+    map_remove_dup_keys(Es0, Used1);
+map_remove_dup_keys([{exact,K0,V}|Es0],Used0) ->
+    K = map_key_clean(K0),
+    Op = case dict:find(K, Used0) of
+	     {ok,{assoc,_,_}} -> assoc;
+	     _                -> exact
+	 end,
+    Used1 = dict:store(K, {Op,K0,V}, Used0),
+    map_remove_dup_keys(Es0, Used1);
+map_remove_dup_keys([], Used) -> Used.
 
-%% Be explicit instead of using set_kanno(K,[])
-map_key_clean(#k_literal{val=V}) -> {k_literal,V};
-map_key_clean(#k_int{val=V})     -> {k_int,V};
-map_key_clean(#k_float{val=V})   -> {k_float,V};
-map_key_clean(#k_atom{val=V})    -> {k_atom,V};
-map_key_clean(#k_nil{})          -> k_nil.
+%% Be explicit instead of using set_kanno(K, []).
+map_key_clean(#k_var{name=V})    -> {var,V};
+map_key_clean(#k_literal{val=V}) -> {lit,V};
+map_key_clean(#k_int{val=V})     -> {lit,V};
+map_key_clean(#k_float{val=V})   -> {lit,V};
+map_key_clean(#k_atom{val=V})    -> {lit,V};
+map_key_clean(#k_nil{})          -> {lit,[]}.
 
 
 %% call_type(Module, Function, Arity) -> call | bif | apply | error.
@@ -660,12 +655,12 @@ atomic_bin([#c_bitstr{anno=A,val=E0,size=S0,unit=U0,type=T,flags=Fs0}|Es0],
     {E,Ap1,St1} = atomic(E0, Sub, St0),
     {S1,Ap2,St2} = atomic(S0, Sub, St1),
     validate_bin_element_size(S1),
-    U1 = core_lib:literal_value(U0),
-    Fs1 = core_lib:literal_value(Fs0),
+    U1 = cerl:concrete(U0),
+    Fs1 = cerl:concrete(Fs0),
     {Es,Ap3,St3} = atomic_bin(Es0, Sub, St2),
     {#k_bin_seg{anno=A,size=S1,
 		unit=U1,
-		type=core_lib:literal_value(T),
+		type=cerl:concrete(T),
 		flags=Fs1,
 		seg=E,next=Es},
      Ap1++Ap2++Ap3,St3};
@@ -720,15 +715,15 @@ force_variable(Ke, St0) ->
 %%  handling.
 
 pattern(#c_var{anno=A,name=V}, _Isub, Osub, St0) ->
-    case sets:is_element(V, St0#kern.ds) of
+    case cerl_sets:is_element(V, St0#kern.ds) of
 	true ->
 	    {New,St1} = new_var_name(St0),
 	    {#k_var{anno=A,name=New},
 	     set_vsub(V, New, Osub),
-	     St1#kern{ds=sets:add_element(New, St1#kern.ds)}};
+	     St1#kern{ds=cerl_sets:add_element(New, St1#kern.ds)}};
 	false ->
 	    {#k_var{anno=A,name=V},Osub,
-	     St0#kern{ds=sets:add_element(V, St0#kern.ds)}}
+	     St0#kern{ds=cerl_sets:add_element(V, St0#kern.ds)}}
     end;
 pattern(#c_literal{anno=A,val=Val}, _Isub, Osub, St) ->
     {#k_literal{anno=A,val=Val},Osub,St};
@@ -757,23 +752,22 @@ flatten_alias(#c_alias{var=V,pat=P}) ->
 flatten_alias(Pat) -> {[],Pat}.
 
 pattern_map_pairs(Ces0, Isub, Osub0, St0) ->
-    %% It is assumed that all core keys are literals
-    %% It is later assumed that these keys are term sorted
-    %% so we need to sort them here
-    Ces1 = lists:sort(fun
-	    (#c_map_pair{key=CkA},#c_map_pair{key=CkB}) ->
-		A = core_lib:literal_value(CkA),
-		B = core_lib:literal_value(CkB),
-		erts_internal:cmp_term(A,B) < 0
-	end, Ces0),
     %% pattern the pair keys and values as normal
     {Kes,{Osub1,St1}} = lists:mapfoldl(fun
 	    (#c_map_pair{anno=A,key=Ck,val=Cv},{Osubi0,Sti0}) ->
-		{Kk,Osubi1,Sti1} = pattern(Ck, Isub, Osubi0, Sti0),
-		{Kv,Osubi2,Sti2} = pattern(Cv, Isub, Osubi1, Sti1),
+		{Kk,[],Sti1} = expr(Ck, Isub, Sti0),
+		{Kv,Osubi2,Sti2} = pattern(Cv, Isub, Osubi0, Sti1),
 		{#k_map_pair{anno=A,key=Kk,val=Kv},{Osubi2,Sti2}}
-	end, {Osub0, St0}, Ces1),
-    {Kes,Osub1,St1}.
+	end, {Osub0, St0}, Ces0),
+    %% It is later assumed that these keys are term sorted
+    %% so we need to sort them here
+    Kes1 = lists:sort(fun
+	    (#k_map_pair{key=KkA},#k_map_pair{key=KkB}) ->
+		A = map_key_clean(KkA),
+		B = map_key_clean(KkB),
+		erts_internal:cmp_term(A,B) < 0
+	end, Kes),
+    {Kes1,Osub1,St1}.
 
 pattern_bin(Es, Isub, Osub0, St0) ->
     {Kbin,{_,Osub},St} = pattern_bin_1(Es, Isub, Osub0, St0),
@@ -793,8 +787,8 @@ pattern_bin_1([#c_bitstr{anno=A,val=E0,size=S0,unit=U,type=T,flags=Fs}|Es0],
 		%% problems.
 		#k_atom{val=bad_size}
 	end,
-    U0 = core_lib:literal_value(U),
-    Fs0 = core_lib:literal_value(Fs),
+    U0 = cerl:concrete(U),
+    Fs0 = cerl:concrete(Fs),
     %%ok= io:fwrite("~w: ~p~n", [?LINE,{B0,S,U0,Fs0}]),
     {E,Osub1,St2} = pattern(E0, Isub0, Osub0, St1),
     Isub1 = case E0 of
@@ -805,7 +799,7 @@ pattern_bin_1([#c_bitstr{anno=A,val=E0,size=S0,unit=U,type=T,flags=Fs}|Es0],
     {Es,{Isub,Osub},St3} = pattern_bin_1(Es0, Isub1, Osub1, St2),
     {#k_bin_seg{anno=A,size=S,
 		unit=U0,
-		type=core_lib:literal_value(T),
+		type=cerl:concrete(T),
 		flags=Fs0,
 		seg=E,next=Es},
      {Isub,Osub},St3};
@@ -842,12 +836,23 @@ get_vsub(V, Vsub) ->
 set_vsub(V, S, Vsub) ->
     orddict:store(V, S, Vsub).
 
-subst_vsub(V, S, Vsub0) ->
-    %% Fold chained substitutions.
-    Vsub1 = orddict:map(fun (_, V1) when V1 =:= V -> S;
-			    (_, V1) -> V1
-			end, Vsub0),
-    orddict:store(V, S, Vsub1).
+subst_vsub(Key, New, [{K,Key}|Dict]) ->
+    %% Fold chained substitution.
+    [{K,New}|subst_vsub(Key, New, Dict)];
+subst_vsub(Key, New, [{K,_}|_]=Dict) when Key < K ->
+    %% Insert the new substitution here, and continue
+    %% look for chained substitutions.
+    [{Key,New}|subst_vsub_1(Key, New, Dict)];
+subst_vsub(Key, New, [{K,_}=E|Dict]) when Key > K ->
+    [E|subst_vsub(Key, New, Dict)];
+subst_vsub(Key, New, []) -> [{Key,New}].
+
+subst_vsub_1(V, S, [{K,V}|Dict]) ->
+    %% Fold chained substitution.
+    [{K,S}|subst_vsub_1(V, S, Dict)];
+subst_vsub_1(V, S, [E|Dict]) ->
+    [E|subst_vsub_1(V, S, Dict)];
+subst_vsub_1(_, _, []) -> [].
 
 get_fsub(F, A, Fsub) ->
     case orddict:find({F,A}, Fsub) of
@@ -892,7 +897,7 @@ new_vars(0, St, Vs) -> {Vs,St}.
 make_vars(Vs) -> [ #k_var{name=V} || V <- Vs ].
 
 add_var_def(V, St) ->
-    St#kern{ds=sets:add_element(V#k_var.name, St#kern.ds)}.
+    St#kern{ds=cerl_sets:add_element(V#k_var.name, St#kern.ds)}.
 
 %%add_vars_def(Vs, St) ->
 %%    Ds = foldl(fun (#k_var{name=V}, Ds) -> add_element(V, Ds) end,
@@ -1550,13 +1555,11 @@ arg_val(Arg, C) ->
 		    {set_kanno(S, []),U,T,Fs}
 	    end;
 	#k_map{op=exact,es=Es} ->
-	    Keys = [begin
-			#k_map_pair{key=#k_literal{val=Key}} = Pair,
-			Key
-		    end || Pair <- Es],
-	    %% multiple keys may have the same name
-	    %% do not use ordsets
-	    lists:sort(fun(A,B) -> erts_internal:cmp_term(A,B) < 0 end, Keys)
+	    lists:sort(fun(A,B) ->
+			%% on the form K :: {'lit' | 'var', term()}
+			%% lit < var as intended
+			erts_internal:cmp_term(A,B) < 0
+		end, [map_key_clean(Key) || #k_map_pair{key=Key} <- Es])
     end.
 
 %% ubody_used_vars(Expr, State) -> [UsedVar]
@@ -1943,6 +1946,7 @@ lit_list_vars(Ps) ->
 %% pat_vars(Pattern) -> {[UsedVarName],[NewVarName]}.
 %%  Return variables in a pattern.  All variables are new variables
 %%  except those in the size field of binary segments.
+%%  and map_pair keys
 
 pat_vars(#k_var{name=N}) -> {[],[N]};
 %%pat_vars(#k_char{}) -> {[],[]};
@@ -1967,8 +1971,10 @@ pat_vars(#k_tuple{es=Es}) ->
     pat_list_vars(Es);
 pat_vars(#k_map{es=Es}) ->
     pat_list_vars(Es);
-pat_vars(#k_map_pair{val=V}) ->
-    pat_vars(V).
+pat_vars(#k_map_pair{key=K,val=V}) ->
+    {U1,New} = pat_vars(V),
+    {[], U2} = pat_vars(K),
+    {union(U1,U2),New}.
 
 pat_list_vars(Ps) ->
     foldl(fun (P, {Used0,New0}) ->
@@ -2009,9 +2015,7 @@ format_error(nomatch_shadow) ->
 format_error(bad_call) ->
     "invalid module and/or function name; this call will always fail";
 format_error(bad_segment_size) ->
-    "binary construction will fail because of a type mismatch";
-format_error(bad_map) ->
-    "map construction will fail because of a type mismatch".
+    "binary construction will fail because of a type mismatch".
 
 add_warning(none, Term, Anno, #kern{ws=Ws}=St) ->
     File = get_file(Anno),
diff --git a/lib/compiler/src/v3_kernel.hrl b/lib/compiler/src/v3_kernel.hrl
index ab66445f73..b008285d9f 100644
--- a/lib/compiler/src/v3_kernel.hrl
+++ b/lib/compiler/src/v3_kernel.hrl
@@ -38,7 +38,7 @@
 -record(k_nil, {anno=[]}).
 
 -record(k_tuple, {anno=[],es}).
--record(k_map, {anno=[],var,op,es}).
+-record(k_map, {anno=[],var=#k_literal{val=#{}},op,es}).
 -record(k_map_pair, {anno=[],key,val}).
 -record(k_cons, {anno=[],hd,tl}).
 -record(k_binary, {anno=[],segs}).
diff --git a/lib/compiler/src/v3_life.erl b/lib/compiler/src/v3_life.erl
index cd4b5fd674..ee0565efb6 100644
--- a/lib/compiler/src/v3_life.erl
+++ b/lib/compiler/src/v3_life.erl
@@ -45,7 +45,7 @@
 
 -export([vdb_find/2]).
 
--import(lists, [member/2,map/2,foldl/3,reverse/1,sort/1]).
+-import(lists, [member/2,map/2,reverse/1,sort/1]).
 -import(ordsets, [add_element/2,intersection/2,union/2]).
 
 -include("v3_kernel.hrl").
@@ -68,7 +68,7 @@ functions([], Acc) -> reverse(Acc).
 function(#k_fdef{anno=#k{a=Anno},func=F,arity=Ar,vars=Vs,body=Kb}) ->
     try
 	As = var_list(Vs),
-	Vdb0 = foldl(fun ({var,N}, Vdb) -> new_var(N, 0, Vdb) end, [], As),
+	Vdb0 = init_vars(As),
 	%% Force a top-level match!
 	B0 = case Kb of
 		 #k_match{} -> Kb;
@@ -94,14 +94,14 @@ function(#k_fdef{anno=#k{a=Anno},func=F,arity=Ar,vars=Vs,body=Kb}) ->
 body(#k_seq{arg=Ke,body=Kb}, I, Vdb0) ->
     %%ok = io:fwrite("life ~w:~p~n", [?LINE,{Ke,I,Vdb0}]),
     A = get_kanno(Ke),
-    Vdb1 = use_vars(A#k.us, I, new_vars(A#k.ns, I, Vdb0)),
+    Vdb1 = use_vars(union(A#k.us, A#k.ns), I, Vdb0),
     {Es,MaxI,Vdb2} = body(Kb, I+1, Vdb1),
     E = expr(Ke, I, Vdb2),
     {[E|Es],MaxI,Vdb2};
 body(Ke, I, Vdb0) ->
     %%ok = io:fwrite("life ~w:~p~n", [?LINE,{Ke,I,Vdb0}]),
     A = get_kanno(Ke),
-    Vdb1 = use_vars(A#k.us, I, new_vars(A#k.ns, I, Vdb0)),
+    Vdb1 = use_vars(union(A#k.us, A#k.ns), I, Vdb0),
     E = expr(Ke, I, Vdb1),
     {[E],I,Vdb1}.
 
@@ -150,12 +150,12 @@ expr(#k_try_enter{anno=A,arg=Ka,vars=Vs,body=Kb,evars=Evs,handler=Kh}, I, Vdb) -
     %% the body and handler. Add try tag 'variable'.
     Ab = get_kanno(Kb),
     Ah = get_kanno(Kh),
-    Tdb1 = use_vars(Ab#k.us, I+3, use_vars(Ah#k.us, I+3, Tdb0)),
+    Tdb1 = use_vars(union(Ab#k.us, Ah#k.us), I+3, Tdb0),
     Tdb2 = vdb_sub(I, I+2, Tdb1),
     Vnames = fun (Kvar) -> Kvar#k_var.name end,	%Get the variable names
     {Aes,_,Adb} = body(Ka, I+2, add_var({catch_tag,I+1}, I+1, 1000000, Tdb2)),
-    {Bes,_,Bdb} = body(Kb, I+4, new_vars(map(Vnames, Vs), I+3, Tdb2)),
-    {Hes,_,Hdb} = body(Kh, I+4, new_vars(map(Vnames, Evs), I+3, Tdb2)),
+    {Bes,_,Bdb} = body(Kb, I+4, new_vars(sort(map(Vnames, Vs)), I+3, Tdb2)),
+    {Hes,_,Hdb} = body(Kh, I+4, new_vars(sort(map(Vnames, Evs)), I+3, Tdb2)),
     #l{ke={try_enter,#l{ke={block,Aes},i=I+1,vdb=Adb,a=[]},
 	   var_list(Vs),#l{ke={block,Bes},i=I+3,vdb=Bdb,a=[]},
 	   var_list(Evs),#l{ke={block,Hes},i=I+3,vdb=Hdb,a=[]}},
@@ -171,7 +171,7 @@ expr(#k_receive{anno=A,var=V,body=Kb,timeout=T,action=Ka,ret=Rs}, I, Vdb) ->
     %% Work out imported variables which need to be locked.
     Rdb = vdb_sub(I, I+1, Vdb),
     M = match(Kb, add_element(V#k_var.name, A#k.us), I+1, [],
- 	      new_var(V#k_var.name, I, Rdb)),
+	      new_vars([V#k_var.name], I, Rdb)),
     {Tes,_,Adb} = body(Ka, I+1, Rdb),
     #l{ke={receive_loop,atomic(T),variable(V),M,
 	   #l{ke=Tes,i=I+1,vdb=Adb,a=[]},var_list(Rs)},
@@ -199,12 +199,12 @@ body_try(#k_try{anno=A,arg=Ka,vars=Vs,body=Kb,evars=Evs,handler=Kh,ret=Rs},
     %% the body and handler. Add try tag 'variable'.
     Ab = get_kanno(Kb),
     Ah = get_kanno(Kh),
-    Tdb1 = use_vars(Ab#k.us, I+3, use_vars(Ah#k.us, I+3, Tdb0)),
+    Tdb1 = use_vars(union(Ab#k.us, Ah#k.us), I+3, Tdb0),
     Tdb2 = vdb_sub(I, I+2, Tdb1),
     Vnames = fun (Kvar) -> Kvar#k_var.name end,	%Get the variable names
     {Aes,_,Adb} = body(Ka, I+2, add_var({catch_tag,I+1}, I+1, locked, Tdb2)),
-    {Bes,_,Bdb} = body(Kb, I+4, new_vars(map(Vnames, Vs), I+3, Tdb2)),
-    {Hes,_,Hdb} = body(Kh, I+4, new_vars(map(Vnames, Evs), I+3, Tdb2)),
+    {Bes,_,Bdb} = body(Kb, I+4, new_vars(sort(map(Vnames, Vs)), I+3, Tdb2)),
+    {Hes,_,Hdb} = body(Kh, I+4, new_vars(sort(map(Vnames, Evs)), I+3, Tdb2)),
     #l{ke={'try',#l{ke={block,Aes},i=I+1,vdb=Adb,a=[]},
 	   var_list(Vs),#l{ke={block,Bes},i=I+3,vdb=Bdb,a=[]},
 	   var_list(Evs),#l{ke={block,Hes},i=I+3,vdb=Hdb,a=[]},
@@ -270,7 +270,7 @@ match(#k_select{anno=A,var=V,types=Kts}, Ls0, I, Ctxt, Vdb0) ->
 	   end,
     Vdb1 = use_vars(union(A#k.us, Ls1), I, Vdb0),
     Ts = [type_clause(Tc, Ls1, I+1, Ctxt, Vdb1) || Tc <- Kts],
-    #l{ke={select,literal2(V, Ctxt),Ts},i=I,vdb=Vdb1,a=Anno};
+    #l{ke={select,literal(V, Ctxt),Ts},i=I,vdb=Vdb1,a=Anno};
 match(#k_guard{anno=A,clauses=Kcs}, Ls, I, Ctxt, Vdb0) ->
     Vdb1 = use_vars(union(A#k.us, Ls), I, Vdb0),
     Cs = [guard_clause(G, Ls, I+1, Ctxt, Vdb1) || G <- Kcs],
@@ -297,7 +297,7 @@ val_clause(#k_val_clause{anno=A,val=V,body=Kb}, Ls0, I, Ctxt0, Vdb0) ->
 	       _ -> Ctxt0
 	   end,
     B = match(Kb, Ls1, I+1, Ctxt, Vdb1),
-    #l{ke={val_clause,literal2(V, Ctxt),B},i=I,vdb=use_vars(Bus, I+1, Vdb1),a=A#k.a}.
+    #l{ke={val_clause,literal(V, Ctxt),B},i=I,vdb=use_vars(Bus, I+1, Vdb1),a=A#k.a}.
 
 guard_clause(#k_guard_clause{anno=A,guard=Kg,body=Kb}, Ls, I, Ctxt, Vdb0) ->
     Vdb1 = use_vars(union(A#k.us, Ls), I+2, Vdb0),
@@ -350,6 +350,7 @@ atomic_list(Ks) -> [atomic(K) || K <- Ks].
 %% literal_list([Klit]) -> [Lit].
 
 literal(#k_var{name=N}, _) -> {var,N};
+literal(#k_literal{val=I}, _) -> {literal,I};
 literal(#k_int{val=I}, _) -> {integer,I};
 literal(#k_float{val=F}, _) -> {float,F};
 literal(#k_atom{val=N}, _) -> {atom,N};
@@ -358,58 +359,29 @@ literal(#k_nil{}, _) -> nil;
 literal(#k_cons{hd=H,tl=T}, Ctxt) ->
     {cons,[literal(H, Ctxt),literal(T, Ctxt)]};
 literal(#k_binary{segs=V}, Ctxt) ->
-	    {binary,literal(V, Ctxt)};
+    {binary,literal(V, Ctxt)};
+literal(#k_bin_seg{size=S,unit=U,type=T,flags=Fs,seg=Seg,next=[]}, Ctxt) ->
+    %% Only occurs in patterns.
+    {bin_seg,Ctxt,literal(S, Ctxt),U,T,Fs,[literal(Seg, Ctxt)]};
 literal(#k_bin_seg{size=S,unit=U,type=T,flags=Fs,seg=Seg,next=N}, Ctxt) ->
     {bin_seg,Ctxt,literal(S, Ctxt),U,T,Fs,
      [literal(Seg, Ctxt),literal(N, Ctxt)]};
+literal(#k_bin_int{size=S,unit=U,flags=Fs,val=Int,next=N}, Ctxt) ->
+    %% Only occurs in patterns.
+    {bin_int,Ctxt,literal(S, Ctxt),U,Fs,Int,
+     [literal(N, Ctxt)]};
 literal(#k_bin_end{}, Ctxt) ->
     {bin_end,Ctxt};
 literal(#k_tuple{es=Es}, Ctxt) ->
     {tuple,literal_list(Es, Ctxt)};
-literal(#k_map{op=Op,var=Var,es=Es}, Ctxt) ->
-    {map,Op,literal(Var, Ctxt),literal_list(Es, Ctxt)};
+literal(#k_map{op=Op,var=Var,es=Es0}, Ctxt) ->
+    {map,Op,literal(Var, Ctxt),literal_list(Es0, Ctxt)};
 literal(#k_map_pair{key=K,val=V}, Ctxt) ->
-    {map_pair,literal(K, Ctxt),literal(V, Ctxt)};
-literal(#k_literal{val=V}, _Ctxt) ->
-    {literal,V}.
+    {map_pair,literal(K, Ctxt),literal(V, Ctxt)}.
 
 literal_list(Ks, Ctxt) ->
     [literal(K, Ctxt) || K <- Ks].
 
-literal2(#k_var{name=N}, _) -> {var,N};
-literal2(#k_literal{val=I}, _) -> {literal,I};
-literal2(#k_int{val=I}, _) -> {integer,I};
-literal2(#k_float{val=F}, _) -> {float,F};
-literal2(#k_atom{val=N}, _) -> {atom,N};
-%%literal2(#k_char{val=C}, _) -> {char,C};
-literal2(#k_nil{}, _) -> nil;
-literal2(#k_cons{hd=H,tl=T}, Ctxt) ->
-    {cons,[literal2(H, Ctxt),literal2(T, Ctxt)]};
-literal2(#k_binary{segs=V}, Ctxt) ->
-    {binary,literal2(V, Ctxt)};
-literal2(#k_bin_seg{size=S,unit=U,type=T,flags=Fs,seg=Seg,next=[]}, Ctxt) ->
-    {bin_seg,Ctxt,literal2(S, Ctxt),U,T,Fs,[literal2(Seg, Ctxt)]};
-literal2(#k_bin_seg{size=S,unit=U,type=T,flags=Fs,seg=Seg,next=N}, Ctxt) ->
-    {bin_seg,Ctxt,literal2(S, Ctxt),U,T,Fs,
-     [literal2(Seg, Ctxt),literal2(N, Ctxt)]};
-literal2(#k_bin_int{size=S,unit=U,flags=Fs,val=Int,next=N}, Ctxt) ->
-    {bin_int,Ctxt,literal2(S, Ctxt),U,Fs,Int,
-     [literal2(N, Ctxt)]};
-literal2(#k_bin_end{}, Ctxt) ->
-    {bin_end,Ctxt};
-literal2(#k_tuple{es=Es}, Ctxt) ->
-    {tuple,literal_list2(Es, Ctxt)};
-literal2(#k_map{op=Op,es=Es}, Ctxt) ->
-    {map,Op,literal_list2(Es, Ctxt)};
-literal2(#k_map_pair{key=K,val=V}, Ctxt) ->
-    {map_pair,literal2(K, Ctxt),literal2(V, Ctxt)}.
-
-literal_list2(Ks, Ctxt) ->
-    [literal2(K, Ctxt) || K <- Ks].
-
-%% literal_bin(#k_bin_seg{size=S,unit=U,type=T,flags=Fs,seg=Seg,next=N}) ->
-%%     {bin_seg,literal(S),U,T,Fs,[literal(Seg),literal(N)]}
-
 
 %% is_gc_bif(Name, Arity) -> true|false
 %%  Determines whether the BIF Name/Arity might do a GC.
@@ -428,79 +400,78 @@ is_gc_bif(Bif, Arity) ->
 	 erl_internal:new_type_test(Bif, Arity) orelse
 	 erl_internal:comp_op(Bif, Arity)).
 
-%% new_var(VarName, I, Vdb) -> Vdb.
+%% Keep track of life time for variables.
+%%
+%% init_vars([{var,VarName}]) -> Vdb.
 %% new_vars([VarName], I, Vdb) -> Vdb.
-%% use_var(VarName, I, Vdb) -> Vdb.
 %% use_vars([VarName], I, Vdb) -> Vdb.
 %% add_var(VarName, F, L, Vdb) -> Vdb.
+%%
+%% The list of variable names for new_vars/3 and use_vars/3
+%% must be sorted.
 
-new_var(V, I, Vdb) ->
-    vdb_store_new(V, I, I, Vdb).
+init_vars(Vs) ->
+    vdb_new(Vs).
 
-new_vars(Vs, I, Vdb0) ->
-    foldl(fun (V, Vdb) -> new_var(V, I, Vdb) end, Vdb0, Vs).
+new_vars([], _, Vdb) -> Vdb;
+new_vars([V], I, Vdb) -> vdb_store_new(V, {V,I,I}, Vdb);
+new_vars(Vs, I, Vdb) -> vdb_update_vars(Vs, Vdb, I).
 
-use_var(V, I, Vdb) ->
+use_vars([], _, Vdb) ->
+    Vdb;
+use_vars([V], I, Vdb) ->
     case vdb_find(V, Vdb) of
-	{V,F,L} when I > L -> vdb_update(V, F, I, Vdb);
+	{V,F,L} when I > L -> vdb_update(V, {V,F,I}, Vdb);
 	{V,_,_} -> Vdb;
-	error -> vdb_store_new(V, I, I, Vdb)
-    end.
+	error -> vdb_store_new(V, {V,I,I}, Vdb)
+    end;
+use_vars(Vs, I, Vdb) -> vdb_update_vars(Vs, Vdb, I).
 
-use_vars([], _, Vdb) -> Vdb;
-use_vars([V], I, Vdb) -> use_var(V, I, Vdb);
-use_vars(Vs, I, Vdb) ->
-    Res = use_vars_1(sort(Vs), Vdb, I),
-    %% The following line can be used as an assertion.
-    %%   Res = foldl(fun (V, Vdb) -> use_var(V, I, Vdb) end, Vdb, Vs),
-    Res.
+add_var(V, F, L, Vdb) ->
+    vdb_store_new(V, {V,F,L}, Vdb).
 
-%% Measurements show that it is worthwhile having this special
-%% function that updates/inserts several variables at once.
+%% is_in_guard() -> true|false.
 
-use_vars_1([V|_]=Vs, [{V1,_,_}=Vd|Vdb], I) when V > V1 ->
-    [Vd|use_vars_1(Vs, Vdb, I)];
-use_vars_1([V|Vs], [{V1,_,_}|_]=Vdb, I) when V < V1 ->
-    %% New variable.
-    [{V,I,I}|use_vars_1(Vs, Vdb, I)];
-use_vars_1([V|Vs], [{_,F,L}=Vd|Vdb], I) ->
-    %% Existing variable.
-    if
-	I > L ->[{V,F,I}|use_vars_1(Vs, Vdb, I)];
-	true -> [Vd|use_vars_1(Vs, Vdb, I)]
-    end;
-use_vars_1([V|Vs], [], I) ->
-    %% New variable.
-    [{V,I,I}|use_vars_1(Vs, [], I)];
-use_vars_1([], Vdb, _) -> Vdb.
+is_in_guard() ->
+    get(guard_refc) > 0.
 
-add_var(V, F, L, Vdb) ->
-    vdb_store_new(V, F, L, Vdb).
+%% vdb
+
+vdb_new(Vs) ->
+    sort([{V,0,0} || {var,V} <- Vs]).
 
 vdb_find(V, Vdb) ->
-    %% Performance note: Profiling shows that this function accounts for
-    %% a lot of the execution time when huge constant terms are built.
-    %% Using the BIF lists:keyfind/3 is a lot faster than the
-    %% original Erlang version.
     case lists:keyfind(V, 1, Vdb) of
 	false -> error;
 	Vd -> Vd
     end.
 
-%vdb_find(V, [{V1,F,L}=Vd|Vdb]) when V < V1 -> error;
-%vdb_find(V, [{V1,F,L}=Vd|Vdb]) when V == V1 -> Vd;
-%vdb_find(V, [{V1,F,L}=Vd|Vdb]) when V > V1 -> vdb_find(V, Vdb);
-%vdb_find(V, []) -> error.
+vdb_update(V, Update, [{V,_,_}|Vdb]) ->
+    [Update|Vdb];
+vdb_update(V, Update, [Vd|Vdb]) ->
+    [Vd|vdb_update(V, Update, Vdb)].
 
-vdb_update(V, F, L, [{V1,_,_}=Vd|Vdb]) when V > V1 ->
-    [Vd|vdb_update(V, F, L, Vdb)];
-vdb_update(V, F, L, [{V1,_,_}|Vdb]) when V == V1 ->
-    [{V,F,L}|Vdb].
+vdb_store_new(V, New, [{V1,_,_}=Vd|Vdb]) when V > V1 ->
+    [Vd|vdb_store_new(V, New, Vdb)];
+vdb_store_new(V, New, [{V1,_,_}|_]=Vdb) when V < V1 ->
+    [New|Vdb];
+vdb_store_new(_, New, []) -> [New].
 
-vdb_store_new(V, F, L, [{V1,_,_}=Vd|Vdb]) when V > V1 ->
-    [Vd|vdb_store_new(V, F, L, Vdb)];
-vdb_store_new(V, F, L, [{V1,_,_}|_]=Vdb) when V < V1 -> [{V,F,L}|Vdb];
-vdb_store_new(V, F, L, []) -> [{V,F,L}].
+vdb_update_vars([V|_]=Vs, [{V1,_,_}=Vd|Vdb], I) when V > V1 ->
+    [Vd|vdb_update_vars(Vs, Vdb, I)];
+vdb_update_vars([V|Vs], [{V1,_,_}|_]=Vdb, I) when V < V1 ->
+    %% New variable.
+    [{V,I,I}|vdb_update_vars(Vs, Vdb, I)];
+vdb_update_vars([V|Vs], [{_,F,L}=Vd|Vdb], I) ->
+    %% Existing variable.
+    if
+	I > L -> [{V,F,I}|vdb_update_vars(Vs, Vdb, I)];
+	true ->  [Vd|vdb_update_vars(Vs, Vdb, I)]
+    end;
+vdb_update_vars([V|Vs], [], I) ->
+    %% New variable.
+    [{V,I,I}|vdb_update_vars(Vs, [], I)];
+vdb_update_vars([], Vdb, _) -> Vdb.
 
 %% vdb_sub(Min, Max, Vdb) -> Vdb.
 %%  Extract variables which are used before and after Min.  Lock
@@ -510,8 +481,3 @@ vdb_sub(Min, Max, Vdb) ->
     [ if L >= Max -> {V,F,locked};
 	 true -> Vd
       end || {V,F,L}=Vd <- Vdb, F < Min, L >= Min ].
-
-%% is_in_guard() -> true|false.
-
-is_in_guard() ->
-    get(guard_refc) > 0.
diff --git a/lib/compiler/test/Makefile b/lib/compiler/test/Makefile
index 0b56a49cd6..98125fc84e 100644
--- a/lib/compiler/test/Makefile
+++ b/lib/compiler/test/Makefile
@@ -11,6 +11,7 @@ MODULES= \
 	beam_validator_SUITE \
 	beam_disasm_SUITE \
 	beam_except_SUITE \
+	beam_utils_SUITE \
 	bs_bincomp_SUITE \
 	bs_bit_binaries_SUITE \
 	bs_construct_SUITE \
@@ -34,12 +35,14 @@ MODULES= \
 	record_SUITE \
 	trycatch_SUITE \
 	warnings_SUITE \
+	z_SUITE \
 	test_lib
 
 NO_OPT= \
 	andor \
 	apply \
 	beam_except \
+	beam_utils \
 	bs_construct \
         bs_match \
 	bs_utf \
@@ -59,6 +62,7 @@ NO_OPT= \
 INLINE= \
 	andor \
 	apply \
+	beam_utils \
 	bs_bincomp \
 	bs_bit_binaries \
 	bs_construct \
@@ -76,12 +80,6 @@ INLINE= \
 	receive \
 	record
 
-CORE_MODULES = \
-	bs_shadowed_size_var \
-	unused_multiple_values_error \
-	nested_call_in_case
-
-
 NO_OPT_MODULES= $(NO_OPT:%=%_no_opt_SUITE)
 NO_OPT_ERL_FILES= $(NO_OPT_MODULES:%=%.erl)
 POST_OPT_MODULES= $(NO_OPT:%=%_post_opt_SUITE)
@@ -91,8 +89,6 @@ INLINE_ERL_FILES= $(INLINE_MODULES:%=%.erl)
 
 ERL_FILES= $(MODULES:%=%.erl)
 
-CORE_FILES= $(CORE_MODULES:%=%.core)
-
 ##TARGET_FILES= $(MODULES:%=$(EBIN)/%.$(EMULATOR))
 ##INSTALL_PROGS= $(TARGET_FILES)
 
@@ -108,7 +104,7 @@ RELSYSDIR = $(RELEASE_PATH)/compiler_test
 # ----------------------------------------------------
 
 ERL_MAKE_FLAGS +=
-ERL_COMPILE_FLAGS += -I$(ERL_TOP)/lib/test_server/include +clint
+ERL_COMPILE_FLAGS += -I$(ERL_TOP)/lib/test_server/include +clint +clint0
 
 EBIN = .
 
@@ -159,7 +155,7 @@ release_spec: opt
 release_tests_spec: make_emakefile
 	$(INSTALL_DIR) "$(RELSYSDIR)"
 	$(INSTALL_DATA) compiler.spec compiler.cover \
-		$(EMAKEFILE) $(ERL_FILES) $(CORE_FILES) "$(RELSYSDIR)"
+		$(EMAKEFILE) $(ERL_FILES) "$(RELSYSDIR)"
 	$(INSTALL_DATA) $(NO_OPT_ERL_FILES) $(POST_OPT_ERL_FILES) \
 		$(INLINE_ERL_FILES) "$(RELSYSDIR)"
 	chmod -R u+w "$(RELSYSDIR)"
diff --git a/lib/compiler/test/andor_SUITE.erl b/lib/compiler/test/andor_SUITE.erl
index b5408ecd8f..4d7f444c4f 100644
--- a/lib/compiler/test/andor_SUITE.erl
+++ b/lib/compiler/test/andor_SUITE.erl
@@ -33,7 +33,7 @@ all() ->
     [{group,p}].
 
 groups() -> 
-    [{p,test_lib:parallel(),
+    [{p,[parallel],
       [t_case,t_and_or,t_andalso,t_orelse,inside,overlap,
        combined,in_case,before_and_inside_if]}].
 
@@ -173,7 +173,13 @@ t_and_or(Config) when is_list(Config) ->
 
     true = (fun (X = true) when X or true or X -> true end)(True),
 
-   ok.
+    Tuple = id({a,b}),
+    case Tuple of
+	{_,_} ->
+	    {'EXIT',{badarg,_}} = (catch true and Tuple)
+    end,
+
+    ok.
 
 t_andalso(Config) when is_list(Config) ->
     Bs = [true,false],
@@ -364,6 +370,11 @@ combined(Config) when is_list(Config) ->
     ?line true = ?COMB(false, blurf, true),
     ?line true = ?COMB(true, true, blurf),
 
+    false = simple_comb(false, false),
+    false = simple_comb(false, true),
+    false = simple_comb(true, false),
+    true = simple_comb(true, true),
+
     ok.
 -undef(COMB).
 
@@ -390,6 +401,13 @@ comb(A, B, C) ->
 	  end,
     id(Res).
 
+simple_comb(A, B) ->
+    %% Use Res twice, to ensure that a careless optimization of 'not'
+    %% doesn't leave Res as a free variable.
+    Res = A andalso B,
+    _ = id(not Res),
+    Res.
+
 %% Test that a boolean expression in a case expression is properly
 %% optimized (in particular, that the error behaviour is correct).
 in_case(Config) when is_list(Config) ->
diff --git a/lib/compiler/test/beam_utils_SUITE.erl b/lib/compiler/test/beam_utils_SUITE.erl
new file mode 100644
index 0000000000..d2e24cb5ae
--- /dev/null
+++ b/lib/compiler/test/beam_utils_SUITE.erl
@@ -0,0 +1,236 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+-module(beam_utils_SUITE).
+
+-export([all/0,suite/0,groups/0,init_per_suite/1,end_per_suite/1,
+	 init_per_group/2,end_per_group/2,
+	 apply_fun/1,apply_mf/1,bs_init/1,bs_save/1,
+	 is_not_killed/1,is_not_used_at/1,
+	 select/1,y_catch/1]).
+-export([id/1]).
+
+suite() -> [{ct_hooks,[ts_install_cth]}].
+
+all() ->
+    test_lib:recompile(?MODULE),
+    [{group,p}].
+
+groups() ->
+    [{p,[parallel],
+      [apply_fun,
+       apply_mf,
+       bs_init,
+       bs_save,
+       is_not_killed,
+       is_not_used_at,
+       select,
+       y_catch
+      ]}].
+
+init_per_suite(Config) ->
+    Config.
+
+end_per_suite(_Config) ->
+    ok.
+
+init_per_group(_GroupName, Config) ->
+    Config.
+
+end_per_group(_GroupName, Config) ->
+    Config.
+
+apply_fun(_Config) ->
+    3 = do_apply_fun(false, false),
+    3 = do_apply_fun(false, true),
+    3 = do_apply_fun(true, false),
+    2 = do_apply_fun(true, true),
+    ok.
+
+do_apply_fun(X, Y) ->
+    F = fun(I) -> I+1 end,
+    Arg = case X andalso id(Y) of
+	      true -> 1;
+	      false -> 2
+	  end,
+    F(Arg).
+
+apply_mf(_Config) ->
+    ok = do_apply_mf_used({a,b}, ?MODULE, id),
+    error = do_apply_mf_used([a], ?MODULE, id),
+    {'EXIT',{{case_clause,{[],b}},_}} = (catch do_apply_mf_used({[],b}, ?MODULE, id)),
+
+    error = do_apply_mf_killed({error,[a]}, ?MODULE, id),
+    ok = do_apply_mf_killed([b], ?MODULE, id),
+    {'EXIT',{{case_clause,{a,[b]}},_}} = (catch do_apply_mf_killed({a,[b]}, ?MODULE, id)),
+    {'EXIT',{{case_clause,{error,[]}},_}} = (catch do_apply_mf_killed({error,[]}, ?MODULE, id)),
+
+    ok.
+
+do_apply_mf_used(Arg, Mod, Func) ->
+    Res = case id(Arg) of
+	      {Decoded,_} when Decoded =/= [] ->
+		  ok;
+	      List when is_list(List) ->
+		  error
+	  end,
+    Mod:Func(Res).
+
+do_apply_mf_killed(Arg, Mod, Func) ->
+    Res = case id(Arg) of
+	      {Tag,Decoded} when Decoded =/= [], Tag =:= error ->
+		  error;
+	      List when is_list(List) ->
+		  ok
+	  end,
+    Mod:Func(Res).
+
+bs_init(_Config) ->
+    <<7>> = do_bs_init_1([?MODULE], 7),
+    error = do_bs_init_1([?MODULE], 0.0),
+    error = do_bs_init_1([?MODULE], -43),
+    error = do_bs_init_1([?MODULE], 42),
+
+    <<>> = do_bs_init_2([]),
+    <<0:32,((1 bsl 32)-1):32>> = do_bs_init_2([0,(1 bsl 32)-1]),
+    {'EXIT',{badarg,_}} = (catch do_bs_init_2([0.5])),
+    {'EXIT',{badarg,_}} = (catch do_bs_init_2([-1])),
+    {'EXIT',{badarg,_}} = (catch do_bs_init_2([1 bsl 32])),
+    ok.
+
+do_bs_init_1([?MODULE], Sz) ->
+    if
+	is_integer(Sz), Sz >= -42, Sz < 42 ->
+	    id(<<Sz:8>>);
+	true ->
+	    error
+    end.
+
+do_bs_init_2(SigNos) ->
+    << <<SigNo:32>> ||
+	SigNo <- SigNos,
+	(is_integer(SigNo) andalso SigNo >= 0 andalso SigNo < (1 bsl 32)) orelse
+	    erlang:error(badarg)
+    >>.
+
+
+bs_save(_Config) ->
+    {a,30,<<>>} = do_bs_save(<<1:1,30:5>>),
+    {b,127,<<>>} = do_bs_save(<<1:1,31:5,0:1,127:7>>),
+    {c,127,<<>>} = do_bs_save(<<1:1,31:5,1:1,127:7>>),
+    {c,127,<<>>} = do_bs_save(<<0:1,31:5,1:1,127:7>>),
+    {d,1024,<<>>} = do_bs_save(<<0:1,31:5>>),
+    ok.
+
+do_bs_save(<<_:1, Tag:5, T/binary>>) when Tag < 31 ->
+    {a,Tag,T};
+do_bs_save(<<1:1, 31:5, 0:1, Tag:7, T/binary>>)  ->
+    {b,Tag,T};
+do_bs_save(<<_:1, 31:5, 1:1, Tag:7, T/binary>>) ->
+    {c,Tag,T};
+do_bs_save(<<_:1, 31:5, T/binary>>) ->
+    {d,1024,T}.
+
+is_not_killed(_Config) ->
+    {Pid,Ref} = spawn_monitor(fun() -> exit(banan) end),
+    receive
+	{'DOWN', Ref, process, Pid, banan} ->
+	    ok
+    end,
+    receive after 0 -> ok end.
+
+is_not_used_at(_Config) ->
+    {a,b} = do_is_not_used_at(a, [{a,b}]),
+    {a,b} = do_is_not_used_at(a, [x,{a,b}]),
+    {a,b} = do_is_not_used_at(a, [{x,y},{a,b}]),
+    none = do_is_not_used_at(z, [{a,b}]),
+    none = do_is_not_used_at(a, [x]),
+    none = do_is_not_used_at(a, [{x,y}]),
+    ok.
+
+do_is_not_used_at(Key, [P|Ps]) ->
+    if
+	tuple_size(P) >= 1, element(1, P) =:= Key ->
+	    P;
+	true ->
+	    do_is_not_used_at(Key, Ps)
+    end;
+do_is_not_used_at(_Key, []) -> none.
+
+-record(select, {fixed=false}).
+
+select(_Config) ->
+    a = do_select(#select{}, 0, 0),
+    b = do_select(#select{}, 0, 1),
+    c = do_select(#select{fixed=true}, 0, 0),
+    c = do_select(#select{fixed=true}, 0, 1),
+    ok.
+
+do_select(Head, OldSize, BSize) ->
+    Overwrite0 =
+	if
+	    OldSize =:= BSize -> same;
+	    true -> true
+	end,
+    Overwrite =
+	if
+	    Head#select.fixed =/= false ->
+		false;
+	    true ->
+		Overwrite0
+	end,
+    if
+	Overwrite =:= same ->
+	    a;
+	Overwrite ->
+	    b;
+	true ->
+	    c
+    end.
+
+y_catch(_Config) ->
+    ok = try
+	     do_y_catch(<<"<?xmlX">>, {state}),
+	     failed
+	 catch
+	     throw:{<<"<?xmlX">>,{state}} ->
+		 ok
+	 end.
+
+do_y_catch(<<"<?xml",Rest0/binary>> = Bytes, State0) ->
+    {Rest1,State1} =
+	case do_y_catch_1(Rest0, State0) of
+	    false ->
+		{Bytes,State0};
+	    true ->
+		{_XmlAttributes, R, S} = do_y_catch_2(Rest0),
+		{R,S}
+	end,
+    case catch id({Rest1,State1}) of
+	Other ->
+	    throw(Other)
+    end.
+
+do_y_catch_1(<<_,_/binary>>, _) ->
+    false.
+
+do_y_catch_2(_) -> {a,b,c}.
+
+
+%% The identity function.
+id(I) -> I.
diff --git a/lib/compiler/test/beam_validator_SUITE.erl b/lib/compiler/test/beam_validator_SUITE.erl
index 626f89ba7a..e64dd6b9c3 100644
--- a/lib/compiler/test/beam_validator_SUITE.erl
+++ b/lib/compiler/test/beam_validator_SUITE.erl
@@ -21,16 +21,17 @@
 -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, 
 	 init_per_group/2,end_per_group/2,
 	 init_per_testcase/2,end_per_testcase/2,
-	 beam_files/1,compiler_bug/1,stupid_but_valid/1,
+	 compiler_bug/1,stupid_but_valid/1,
 	 xrange/1,yrange/1,stack/1,call_last/1,merge_undefined/1,
 	 uninit/1,unsafe_catch/1,
-	 dead_code/1,mult_labels/1,
+	 dead_code/1,
 	 overwrite_catchtag/1,overwrite_trytag/1,accessing_tags/1,bad_catch_try/1,
 	 cons_guard/1,
 	 freg_range/1,freg_uninit/1,freg_state/1,
-	 bin_match/1,bad_bin_match/1,bin_aligned/1,bad_dsetel/1,
+	 bad_bin_match/1,bad_dsetel/1,
 	 state_after_fault_in_catch/1,no_exception_in_catch/1,
-	 undef_label/1,illegal_instruction/1,failing_gc_guard_bif/1]).
+	 undef_label/1,illegal_instruction/1,failing_gc_guard_bif/1,
+	 map_field_lists/1]).
 	 
 -include_lib("test_server/include/test_server.hrl").
 
@@ -47,18 +48,19 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() -> 
     test_lib:recompile(?MODULE),
-    [beam_files,{group,p}].
+    [{group,p}].
 
 groups() -> 
     [{p,test_lib:parallel(),
       [compiler_bug,stupid_but_valid,xrange,
        yrange,stack,call_last,merge_undefined,uninit,
-       unsafe_catch,dead_code,mult_labels,
+       unsafe_catch,dead_code,
        overwrite_catchtag,overwrite_trytag,accessing_tags,
        bad_catch_try,cons_guard,freg_range,freg_uninit,
-       freg_state,bin_match,bad_bin_match,bin_aligned,bad_dsetel,
+       freg_state,bad_bin_match,bad_dsetel,
        state_after_fault_in_catch,no_exception_in_catch,
-       undef_label,illegal_instruction,failing_gc_guard_bif]}].
+       undef_label,illegal_instruction,failing_gc_guard_bif,
+       map_field_lists]}].
 
 init_per_suite(Config) ->
     Config.
@@ -72,33 +74,19 @@ init_per_group(_GroupName, Config) ->
 end_per_group(_GroupName, Config) ->
 	Config.
 
-
-beam_files(Config) when is_list(Config) ->
-    ?line DataDir = proplists:get_value(data_dir, Config),
-    ?line Wc = filename:join([DataDir,"..","..","*","*.beam"]),
-    %% Must have at least two files here, or there will be
-    %% a grammatical error in the output of the io:format/2 call below. ;-)
-    ?line [_,_|_] = Fs = filelib:wildcard(Wc),
-    ?line io:format("~p files\n", [length(Fs)]),
-    test_lib:p_run(fun do_beam_file/1, Fs).
-
-
-do_beam_file(F) ->
-    case beam_validator:file(F) of
-	ok ->
-	    ok;
-	{error,Es} ->
-	    io:format("File:  ~s", [F]),
-	    io:format("Error: ~p\n", [Es]),
-	    error
-    end.
-
 compiler_bug(Config) when is_list(Config) ->
     %% Check that the compiler returns an error if we try to
     %% assemble one of the bad '.S' files.
-    ?line Data = ?config(data_dir, Config),
-    ?line File = filename:join(Data, "stack"),
-    ?line error = compile:file(File, [asm,report_errors,binary,time]),
+    Data = ?config(data_dir, Config),
+    File = filename:join(Data, "compiler_bug"),
+    error = compile:file(File, [from_asm,report_errors,time]),
+
+    %% Make sure that the error was reported by
+    %% the beam_validator module.
+    {error,
+     [{"compiler_bug",
+       [{beam_validator,_}]}],
+     []} = compile:file(File, [from_asm,return_errors,time]),
     ok.
 
 %% The following code is stupid but it should compile.
@@ -134,7 +122,7 @@ yrange(Config) when is_list(Config) ->
 	  {{move,{x,1},{y,-1}},5,
 	   {invalid_store,{y,-1},term}}},
 	 {{t,sum_2,2},
-	  {{bif,'+',{f,0},[{x,0},{y,1024}],{x,0}},8,
+	  {{bif,'+',{f,0},[{x,0},{y,1024}],{x,0}},7,
 	   {uninitialized_reg,{y,1024}}}},
 	 {{t,sum_3,2},
 	  {{move,{x,1},{y,1024}},5,limit}},
@@ -145,31 +133,31 @@ yrange(Config) when is_list(Config) ->
 
 stack(Config) when is_list(Config) ->
     Errors = do_val(stack, Config),
-    ?line [{{t,a,2},{return,11,{stack_frame,2}}},
-	   {{t,b,2},{{deallocate,2},4,{allocated,none}}},
-	   {{t,c,2},{{deallocate,2},12,{allocated,none}}},
-	   {{t,d,2},
-	    {{allocate,2,2},5,{existing_stack_frame,{size,2}}}},
-	   {{t,e,2},{{deallocate,5},6,{allocated,2}}},
-	   {{t,bad_1,0},{{allocate_zero,2,10},4,{{x,9},not_live}}},
-	   {{t,bad_2,0},{{move,{y,0},{x,0}},5,{unassigned,{y,0}}}}] = Errors,
+    [{{t,a,2},{return,9,{stack_frame,2}}},
+     {{t,b,2},{{deallocate,2},4,{allocated,none}}},
+     {{t,bad_1,0},{{allocate_zero,2,10},4,{{x,9},not_live}}},
+     {{t,bad_2,0},{{move,{y,0},{x,0}},5,{unassigned,{y,0}}}},
+     {{t,c,2},{{deallocate,2},10,{allocated,none}}},
+     {{t,d,2},
+      {{allocate,2,2},5,{existing_stack_frame,{size,2}}}},
+     {{t,e,2},{{deallocate,5},6,{allocated,2}}}] = Errors,
     ok.
 
 call_last(Config) when is_list(Config) ->
     Errors = do_val(call_last, Config),
-    ?line [{{t,a,1},{{call_last,1,{f,8},2},11,{allocated,1}}},
-	   {{t,b,1},
-	    {{call_ext_last,2,{extfunc,lists,seq,2},2},
-	     11,
-	     {allocated,1}}}] = Errors,
+    [{{t,a,1},{{call_last,1,{f,8},2},9,{allocated,1}}},
+     {{t,b,1},
+      {{call_ext_last,2,{extfunc,lists,seq,2},2},
+       10,
+       {allocated,1}}}] = Errors,
     ok.
 
 merge_undefined(Config) when is_list(Config) ->
     Errors = do_val(merge_undefined, Config),
-    ?line [{{t,handle_call,2},
-	    {{call_ext,2,{extfunc,debug,filter,2}},
-	     22,
-	     {uninitialized_reg,{y,0}}}}] = Errors,
+    [{{t,handle_call,2},
+      {{call_ext,2,{extfunc,debug,filter,2}},
+       22,
+       {uninitialized_reg,{y,0}}}}] = Errors,
     ok.
 
 uninit(Config) when is_list(Config) ->
@@ -178,10 +166,10 @@ uninit(Config) when is_list(Config) ->
 	[{{t,sum_1,2},
 	  {{move,{y,0},{x,0}},5,{uninitialized_reg,{y,0}}}},
 	 {{t,sum_2,2},
-	  {{call,1,{f,10}},6,{uninitialized_reg,{y,0}}}},
+	  {{call,1,{f,8}},5,{uninitialized_reg,{y,0}}}},
 	 {{t,sum_3,2},
 	  {{bif,'+',{f,0},[{x,0},{y,0}],{x,0}},
-	   7,
+	   6,
 	   {unassigned,{y,0}}}}] = Errors,
     ok.
 
@@ -190,7 +178,7 @@ unsafe_catch(Config) when is_list(Config) ->
     ?line
 	[{{t,small,2},
 	  {{bs_put_integer,{f,0},{integer,16},1,
-	    {field_flags,[aligned,unsigned,big]},{y,0}},
+	    {field_flags,[unsigned,big]},{y,0}},
 	   20,
 	   {unassigned,{y,0}}}}] = Errors,
     ok.
@@ -199,10 +187,6 @@ dead_code(Config) when is_list(Config) ->
     [] = do_val(dead_code, Config),
     ok.
 
-mult_labels(Config) when is_list(Config) ->
-    [] = do_val(erl_prim_loader, Config, ".beam"),
-    ok.
-
 overwrite_catchtag(Config) when is_list(Config) ->
     Errors = do_val(overwrite_catchtag, Config),
     ?line
@@ -214,34 +198,34 @@ overwrite_trytag(Config) when is_list(Config) ->
     Errors = do_val(overwrite_trytag, Config),
     ?line
 	[{{overwrite_trytag,foo,1},
-	  {{kill,{y,2}},9,{trytag,_}}}] = Errors,
+	  {{kill,{y,2}},8,{trytag,_}}}] = Errors,
     ok.
 
 accessing_tags(Config) when is_list(Config) ->
     Errors = do_val(accessing_tags, Config),
-    ?line
-	[{{accessing_tags,foo,1},
-	  {{move,{y,0},{x,0}},6,{catchtag,_}}},
-	 {{accessing_tags,bar,1},
-	  {{move,{y,0},{x,0}},6,{trytag,_}}}] = Errors,
+    [{{accessing_tags,bar,1},
+      {{move,{y,0},{x,0}},6,{trytag,_}}},
+     {{accessing_tags,foo,1},
+      {{move,{y,0},{x,0}},6,{catchtag,_}}}] = Errors,
     ok.
 
 bad_catch_try(Config) when is_list(Config) ->
     Errors = do_val(bad_catch_try, Config),
-    ?line [{{bad_catch_try,bad_1,1},
-	    {{'catch',{x,0},{f,3}},
-	     5,{invalid_store,{x,0},{catchtag,[3]}}}},
-	   {{bad_catch_try,bad_2,1},
-	    {{catch_end,{x,9}},
-	     8,{source_not_y_reg,{x,9}}}},
-	   {{bad_catch_try,bad_3,1},
-	    {{catch_end,{y,1}},9,{bad_type,{atom,kalle}}}},
-	   {{bad_catch_try,bad_4,1},
-	    {{'try',{x,0},{f,15}},5,{invalid_store,{x,0},{trytag,[15]}}}},
-	   {{bad_catch_try,bad_5,1},
-	    {{try_case,{y,1}},12,{bad_type,term}}},
-	   {{bad_catch_try,bad_6,1},
-	    {{try_end,{y,1}},8,{bad_type,{integer,1}}}}] = Errors,
+    [{{bad_catch_try,bad_1,1},
+      {{'catch',{x,0},{f,3}},
+       5,{invalid_store,{x,0},{catchtag,[3]}}}},
+     {{bad_catch_try,bad_2,1},
+      {{catch_end,{x,9}},
+       8,{source_not_y_reg,{x,9}}}},
+     {{bad_catch_try,bad_3,1},
+      {{catch_end,{y,1}},9,{bad_type,{atom,kalle}}}},
+     {{bad_catch_try,bad_4,1},
+      {{'try',{x,0},{f,15}},5,{invalid_store,{x,0},{trytag,[15]}}}},
+     {{bad_catch_try,bad_5,1},
+      {{try_case,{y,1}},12,{bad_type,term}}},
+     {{bad_catch_try,bad_6,1},
+      {{move,{integer,1},{y,1}},7,
+       {invalid_store,{y,1},{integer,1}}}}] = Errors,
     ok.
 
 cons_guard(Config) when is_list(Config) ->
@@ -310,66 +294,79 @@ freg_state(Config) when is_list(Config) ->
 	  {fclearerror,5,{bad_floating_point_state,cleared}}}] = Errors,
     ok.
 
-bin_match(Config) when is_list(Config) ->
-    Errors = do_val(bin_match, Config),
-    ?line
-	[{{t,t,1},{{bs_save,0},4,no_bs_match_state}},
-	 {{t,x,1},{{bs_restore,1},16,{no_save_point,1}}}] = Errors,
-    ok.
-
 bad_bin_match(Config) when is_list(Config) ->
 	[{{t,t,1},{return,5,{match_context,{x,0}}}}] =
 		do_val(bad_bin_match, Config),
 	ok.
 
-bin_aligned(Config) when is_list(Config) ->
-    Errors = do_val(bin_aligned, Config),
-    ?line
-	[{{t,decode,1},
-	  {{bs_put_integer,{f,0},
-	    {integer,5},
-	    1,
-	    {field_flags,[unsigned,big,aligned]},
-	    {integer,0}},
-	   10,
-	   {aligned_flag_set,{bits,3}}}}] = Errors,
-    ok.
-
 bad_dsetel(Config) when is_list(Config) ->
     Errors = do_val(bad_dsetel, Config),
     ?line
 	[{{t,t,1},
 	  {{set_tuple_element,{x,1},{x,0},1},
-	   15,
+	   17,
 	   illegal_context_for_set_tuple_element}}] = Errors,
     ok.
 
 state_after_fault_in_catch(Config) when is_list(Config) ->
     Errors = do_val(state_after_fault_in_catch, Config),
-    [{{t,foo,1},
-      {{move,{x,1},{x,0}},10,{uninitialized_reg,{x,1}}}},
-     {{state_after_fault_in_catch,if_end,1},
+    [{{state_after_fault_in_catch,badmatch,1},
       {{move,{x,1},{x,0}},9,{uninitialized_reg,{x,1}}}},
      {{state_after_fault_in_catch,case_end,1},
       {{move,{x,1},{x,0}},9,{uninitialized_reg,{x,1}}}},
-     {{state_after_fault_in_catch,badmatch,1},
-      {{move,{x,1},{x,0}},9,{uninitialized_reg,{x,1}}}}] = Errors,
+     {{state_after_fault_in_catch,if_end,1},
+      {{move,{x,1},{x,0}},9,{uninitialized_reg,{x,1}}}},
+     {{t,foo,1},
+      {{move,{x,1},{x,0}},10,{uninitialized_reg,{x,1}}}}] = Errors,
     ok.
 
 no_exception_in_catch(Config) when is_list(Config) ->
     Errors = do_val(no_exception_in_catch, Config),
     [{{no_exception_in_catch,nested_of_1,4},
-      {{move,{x,3},{x,0}},91,{uninitialized_reg,{x,3}}}}] = Errors,
+      {{move,{x,3},{x,0}},88,{uninitialized_reg,{x,3}}}}] = Errors,
     ok.
 
 undef_label(Config) when is_list(Config) ->
-    Errors = do_val(undef_label, Config),
+    M = {undef_label,
+	 [{t,1}],
+	 [],
+	 [{function,t,1,2,
+	   [{label,1},
+	    {func_info,{atom,undef_label},{atom,t},1},
+	    {label,2},
+	    {test,is_eq_exact,{f,42},[{x,0},{atom,x}]},
+	    {move,{atom,ok},{x,0}},
+	    return]},
+	  {function,x,1,17,
+	   [{label,3},
+	    {func_info,{atom,undef_label},{atom,x},1},
+	    {label,4},
+	    return]}],
+	 5},
+    Errors = beam_val(M),
     [{{undef_label,t,1},{undef_labels,[42]}},
      {{undef_label,x,1},{return,4,no_entry_label}}] = Errors,
     ok.
 
 illegal_instruction(Config) when is_list(Config) ->
-    Errors = do_val(illegal_instruction, Config),
+    M = {illegal_instruction,
+	 [{t,1},{x,1},{y,0}],
+	 [],
+	 [{function,t,1,2,
+	   [{label,1},
+	    {func_info,{atom,illegal_instruction},{atom,t},1},
+	    {label,2},
+	    {my_illegal_instruction,{x,0}},
+	    return]},
+	  {function,x,1,4,
+	   [{label,3},
+	    bad_func_info,
+	    {label,4},
+	    {my_illegal_instruction,{x,0}},
+	    return]},
+	  {function,y,0,17,[]}],
+	 5},
+    Errors = beam_val(M),
     [{{illegal_instruction,t,1},
       {{my_illegal_instruction,{x,0}},4,unknown_instruction}},
      {{'_',x,1},{bad_func_info,1,illegal_instruction}},
@@ -407,19 +404,40 @@ process_request_foo(_) ->
 process_request_bar(Pid, [Response]) when is_pid(Pid) ->
     Response.
 
+map_field_lists(Config) ->
+    Errors = do_val(map_field_lists, Config),
+    [{{map_field_lists,x,1},
+      {{test,has_map_fields,{f,1},{x,0},
+	{list,[{atom,a},{atom,a}]}},
+       5,
+       keys_not_unique}},
+     {{map_field_lists,y,1},
+      {{test,has_map_fields,{f,3},{x,0},{list,[]}},
+       5,
+       empty_field_list}}
+    ] = Errors.
 
 %%%-------------------------------------------------------------------------
 
-do_val(Name, Config) ->
-    do_val(Name, Config, ".S").
-
-do_val(Name, Config, Type) ->
-    ?line Data = ?config(data_dir, Config),
-    ?line File = filename:join(Data, atom_to_list(Name)++Type),
-    ?line case beam_validator:file(File) of
-	      {error,Errors} ->
-		  ?line io:format("~p:~n~s", 
-				  [File,beam_validator:format_error(Errors)]),
-		  Errors;
-	      ok -> []
-	  end.
+do_val(Mod, Config) ->
+    Data = ?config(data_dir, Config),
+    Base = atom_to_list(Mod),
+    File = filename:join(Data, Base),
+    case compile:file(File, [from_asm,no_postopt,return_errors]) of
+	{error,L,[]} ->
+	    [{Base,Errors0}] = L,
+	    Errors = [E || {beam_validator,E} <- Errors0],
+	    _ = [io:put_chars(beam_validator:format_error(E)) ||
+		    E <- Errors],
+	    Errors;
+	{ok,Mod} ->
+	    []
+    end.
+
+beam_val(M) ->
+    Name = atom_to_list(element(1, M)),
+    {error,[{Name,Errors0}]} = beam_validator:module(M, []),
+    Errors = [E || {beam_validator,E} <- Errors0],
+    _ = [io:put_chars(beam_validator:format_error(E)) ||
+	    E <- Errors],
+    Errors.
diff --git a/lib/compiler/test/beam_validator_SUITE_data/bad_catch_try.S b/lib/compiler/test/beam_validator_SUITE_data/bad_catch_try.S
index 2a53f0dd93..6035f23506 100644
--- a/lib/compiler/test/beam_validator_SUITE_data/bad_catch_try.S
+++ b/lib/compiler/test/beam_validator_SUITE_data/bad_catch_try.S
@@ -63,11 +63,11 @@
   {label,9}.
     {func_info,{atom,bad_catch_try},{atom,bad_3},1}.
   {label,10}.
-    {allocate,1,1}.
+    {allocate,2,1}.
+    {move,{atom,kalle},{y,1}}.
     {'catch',{y,0},{f,11}}.
     {call,1,{f,26}}.
   {label,11}.
-    {move,{atom,kalle},{y,1}}.
     {catch_end,{y,1}}.
     {test,is_tuple,{f,12},[{x,0}]}.
     {test,test_arity,{f,12},[{x,0},2]}.
@@ -106,7 +106,7 @@
   {label,17}.
     {func_info,{atom,bad_catch_try},{atom,bad_5},1}.
   {label,18}.
-    {allocate_zero,1,1}.
+    {allocate_zero,2,1}.
     {'try',{y,0},{f,19}}.
     {call,1,{f,26}}.
     {try_end,{y,0}}.
@@ -131,7 +131,7 @@
     {'try',{y,0},{f,23}}.
     {call,1,{f,26}}.
     {move,{integer,1},{y,1}}.
-    {try_end,{y,1}}.
+    {try_end,{y,0}}.
     {move,{atom,ok},{x,0}}.
     {jump,{f,24}}.
   {label,23}.
diff --git a/lib/compiler/test/beam_validator_SUITE_data/bad_dsetel.S b/lib/compiler/test/beam_validator_SUITE_data/bad_dsetel.S
index 279b2fa97f..9630d73a93 100644
--- a/lib/compiler/test/beam_validator_SUITE_data/bad_dsetel.S
+++ b/lib/compiler/test/beam_validator_SUITE_data/bad_dsetel.S
@@ -1,4 +1,4 @@
-{module, t}.  %% version = 0
+{module, bad_dsetel}.  %% version = 0
 
 {exports, [{module_info,0},{module_info,1},{t,1}]}.
 
@@ -21,7 +21,9 @@
     {move,{integer,3},{x,0}}.
     {call_ext,3,{extfunc,erlang,setelement,3}}.
     {test_heap,6,1}.
-    {put_string,3,{string,"abc"},{x,1}}.
+    {put_list,{integer,99},nil,{x,1}}.
+    {put_list,{integer,98},{x,1},{x,1}}.
+    {put_list,{integer,97},{x,1},{x,1}}.
     {set_tuple_element,{x,1},{x,0},1}.
     {'%live',1}.
     {deallocate,0}.
diff --git a/lib/compiler/test/beam_validator_SUITE_data/bin_aligned.S b/lib/compiler/test/beam_validator_SUITE_data/bin_aligned.S
deleted file mode 100644
index 2f353fbd25..0000000000
--- a/lib/compiler/test/beam_validator_SUITE_data/bin_aligned.S
+++ /dev/null
@@ -1,47 +0,0 @@
-{module, t}.  %% version = 0
-
-{exports, [{decode,1},{module_info,0},{module_info,1}]}.
-
-{attributes, []}.
-
-{labels, 7}.
-
-
-{function, decode, 1, 2}.
-  {label,1}.
-    {func_info,{atom,t},{atom,decode},1}.
-  {label,2}.
-    {move,{integer,1},{x,1}}.
-    {bif,size,{f,0},[{x,0}],{x,2}}.
-    {bs_add,{f,0},[{x,1},{x,2},1],{x,1}}.
-    {bs_init2,{f,0},{x,1},0,1,{field_flags,[]},{x,1}}.
-    {bs_put_integer,{f,0},
-                    {integer,3},
-                    1,
-                    {field_flags,[aligned,unsigned,big]},
-                    {integer,0}}.
-    {bs_put_binary,{f,0},{atom,all},8,{field_flags,[unsigned,big]},{x,0}}.
-    {bs_put_integer,{f,0},
-                    {integer,5},
-                    1,
-                    {field_flags,[unsigned,big,aligned]},
-                    {integer,0}}.
-    {move,{x,1},{x,0}}.
-    return.
-
-
-{function, module_info, 0, 4}.
-  {label,3}.
-    {func_info,{atom,t},{atom,module_info},0}.
-  {label,4}.
-    {move,{atom,t},{x,0}}.
-    {call_ext_only,1,{extfunc,erlang,get_module_info,1}}.
-
-
-{function, module_info, 1, 6}.
-  {label,5}.
-    {func_info,{atom,t},{atom,module_info},1}.
-  {label,6}.
-    {move,{x,0},{x,1}}.
-    {move,{atom,t},{x,0}}.
-    {call_ext_only,2,{extfunc,erlang,get_module_info,2}}.
diff --git a/lib/compiler/test/beam_validator_SUITE_data/bin_match.S b/lib/compiler/test/beam_validator_SUITE_data/bin_match.S
deleted file mode 100644
index 96df0f7933..0000000000
--- a/lib/compiler/test/beam_validator_SUITE_data/bin_match.S
+++ /dev/null
@@ -1,64 +0,0 @@
-{module, bin_match}.  %% version = 0
-
-{exports, [{t,1}]}.
-
-{attributes, []}.
-
-{labels, 8}.
-
-
-{function, t, 1, 2}.
-  {label,1}.
-    {func_info,{atom,t},{atom,t},1}.
-  {label,2}.
-%%    {test,bs_start_match,{f,1},[{x,0}]}.
-    {bs_save,0}.
-    {test,bs_get_integer,
-          {f,3},
-          [{integer,8},1,{field_flags,[aligned,unsigned,big]},{x,1}]}.
-    {test,bs_get_integer,
-          {f,3},
-          [{integer,8},1,{field_flags,[aligned,unsigned,big]},{x,2}]}.
-    {test,bs_test_tail,{f,3},[0]}.
-    {test_heap,3,3}.
-    {put_tuple,2,{x,0}}.
-    {put,{x,1}}.
-    {put,{x,2}}.
-    {'%live',1}.
-    return.
-  {label,3}.
-    {bs_restore,0}.
-    {test,bs_get_integer,
-          {f,1},
-          [{integer,32},1,{field_flags,[aligned,unsigned,big]},{x,1}]}.
-    {test,bs_test_tail,{f,1},[0]}.
-    {move,{x,1},{x,0}}.
-    return.
-
-{function, x, 1, 5}.
-  {label,4}.
-    {func_info,{atom,t},{atom,x},1}.
-  {label,5}.
-    {test,bs_start_match,{f,4},[{x,0}]}.
-    {bs_save,0}.
-    {test,bs_get_integer,
-          {f,6},
-          [{integer,8},1,{field_flags,[aligned,unsigned,big]},{x,1}]}.
-    {test,bs_get_integer,
-          {f,6},
-          [{integer,8},1,{field_flags,[aligned,unsigned,big]},{x,2}]}.
-    {test,bs_test_tail,{f,6},[0]}.
-    {test_heap,3,3}.
-    {put_tuple,2,{x,0}}.
-    {put,{x,1}}.
-    {put,{x,2}}.
-    {'%live',1}.
-    return.
-  {label,6}.
-    {bs_restore,1}.
-    {test,bs_get_integer,
-          {f,4},
-          [{integer,32},1,{field_flags,[aligned,unsigned,big]},{x,1}]}.
-    {test,bs_test_tail,{f,4},[0]}.
-    {move,{x,1},{x,0}}.
-    return.
diff --git a/lib/compiler/test/beam_validator_SUITE_data/compiler_bug.S b/lib/compiler/test/beam_validator_SUITE_data/compiler_bug.S
new file mode 100644
index 0000000000..ba27bf5c47
--- /dev/null
+++ b/lib/compiler/test/beam_validator_SUITE_data/compiler_bug.S
@@ -0,0 +1,38 @@
+{module, compiler_bug}.  %% version = 0
+
+{exports, [{module_info,0},{module_info,1},{sum,2}]}.
+
+{attributes, []}.
+
+{labels, 7}.
+
+
+{function, sum, 2, 2}.
+  {label,1}.
+    {line,[{location,"compiler_bug.erl",4}]}.
+    {func_info,{atom,compiler_bug},{atom,sum},2}.
+  {label,2}.
+    {line,[{location,"compiler_bug.erl",5}]}.
+    {gc_bif,'+',{f,0},2,[{y,0},{y,1}],{x,0}}.
+    return.
+
+
+{function, module_info, 0, 4}.
+  {label,3}.
+    {line,[]}.
+    {func_info,{atom,compiler_bug},{atom,module_info},0}.
+  {label,4}.
+    {move,{atom,compiler_bug},{x,0}}.
+    {line,[]}.
+    {call_ext_only,1,{extfunc,erlang,get_module_info,1}}.
+
+
+{function, module_info, 1, 6}.
+  {label,5}.
+    {line,[]}.
+    {func_info,{atom,compiler_bug},{atom,module_info},1}.
+  {label,6}.
+    {move,{x,0},{x,1}}.
+    {move,{atom,compiler_bug},{x,0}}.
+    {line,[]}.
+    {call_ext_only,2,{extfunc,erlang,get_module_info,2}}.
diff --git a/lib/compiler/test/beam_validator_SUITE_data/dead_code.S b/lib/compiler/test/beam_validator_SUITE_data/dead_code.S
index f964f98fba..c114664ba0 100644
--- a/lib/compiler/test/beam_validator_SUITE_data/dead_code.S
+++ b/lib/compiler/test/beam_validator_SUITE_data/dead_code.S
@@ -1,10 +1,10 @@
 {module, dead_code}.  %% version = 0
 
-{exports, [{execute,0},{module_info,0},{module_info,1}]}.
+{exports, [{execute,0}]}.
 
 {attributes, []}.
 
-{labels, 10}.
+{labels, 6}.
 
 
 {function, execute, 0, 2}.
@@ -12,7 +12,6 @@
     {func_info,{atom,dead_code},{atom,execute},0}.
   {label,2}.
     {allocate,0,0}.
-    {'%live',0}.
     {call_ext,0,{extfunc,foo,fie,0}}.
     {test,is_ne,{f,4},[{x,0},{integer,0}]}.
     {test,is_ne,{f,4},[{x,0},{integer,1}]}.
@@ -22,27 +21,7 @@
     {case_end,{x,0}}.
   {label,4}.
     {move,{atom,ok},{x,0}}.
-    {'%live',1}.
     {deallocate,0}.
     return.
-    {'%','Moved code'}.
   {label,5}.
     {case_end,{x,0}}.
-
-
-{function, module_info, 0, 7}.
-  {label,6}.
-    {func_info,{atom,dead_code},{atom,module_info},0}.
-  {label,7}.
-    {move,nil,{x,0}}.
-    {'%live',1}.
-    return.
-
-
-{function, module_info, 1, 9}.
-  {label,8}.
-    {func_info,{atom,dead_code},{atom,module_info},1}.
-  {label,9}.
-    {move,nil,{x,0}}.
-    {'%live',1}.
-    return.
diff --git a/lib/compiler/test/beam_validator_SUITE_data/erl_prim_loader.beam b/lib/compiler/test/beam_validator_SUITE_data/erl_prim_loader.beam
deleted file mode 100644
index dd58a88e42..0000000000
--- a/lib/compiler/test/beam_validator_SUITE_data/erl_prim_loader.beam
+++ /dev/null
diff --git a/lib/compiler/test/beam_validator_SUITE_data/freg_range.S b/lib/compiler/test/beam_validator_SUITE_data/freg_range.S
index ee583a923e..b3ebff3ade 100644
--- a/lib/compiler/test/beam_validator_SUITE_data/freg_range.S
+++ b/lib/compiler/test/beam_validator_SUITE_data/freg_range.S
@@ -1,10 +1,10 @@
 {module, freg_range}.  %% version = 0
 
-{exports, [{module_info,0},{module_info,1},{prod,2},{sum,2},{sum_prod,3}]}.
+{exports, [{sum_1,2},{sum_2,2},{sum_3,2},{sum_4,2}]}.
 
 {attributes, []}.
 
-{labels, 8}.
+{labels, 9}.
 
 
 {function, sum_1, 2, 2}.
diff --git a/lib/compiler/test/beam_validator_SUITE_data/freg_state.S b/lib/compiler/test/beam_validator_SUITE_data/freg_state.S
index ff4d7548ae..7466763482 100644
--- a/lib/compiler/test/beam_validator_SUITE_data/freg_state.S
+++ b/lib/compiler/test/beam_validator_SUITE_data/freg_state.S
@@ -1,6 +1,6 @@
 {module, freg_state}.  %% version = 0
 
-{exports, []}.
+{exports, [{sum_1,2},{sum_2,2},{sum_3,2},{sum_4,2},{sum_5,2}]}.
 
 {attributes, []}.
 
diff --git a/lib/compiler/test/beam_validator_SUITE_data/freg_uninit.S b/lib/compiler/test/beam_validator_SUITE_data/freg_uninit.S
index f8d805d9ec..71e833446a 100644
--- a/lib/compiler/test/beam_validator_SUITE_data/freg_uninit.S
+++ b/lib/compiler/test/beam_validator_SUITE_data/freg_uninit.S
@@ -1,10 +1,10 @@
 {module, freg_uninit}.  %% version = 0
 
-{exports, []}.
+{exports, [{sum_1,2},{sum_2,2}]}.
 
 {attributes, []}.
 
-{labels, 8}.
+{labels, 7}.
 
 
 {function, sum_1, 2, 2}.
@@ -14,7 +14,6 @@
     {fconv,{x,0},{fr,0}}.
     fclearerror.
     {bif,fadd,{f,0},[{fr,0},{fr,1}],{fr,0}}.
-    {'%live',1}.
     return.
 
 
@@ -26,7 +25,12 @@
     {fconv,{x,1},{fr,1}}.
     fclearerror.
     {fcheckerror,{f,0}}.
-    {call,2,{f,8}}.
+    {call,2,{f,6}}.
     {bif,fadd,{f,0},[{fr,0},{fr,1}],{fr,0}}.
-    {'%live',1}.
+    return.
+
+{function, foo, 2, 6}.
+  {label,5}.
+    {func_info,{atom,t},{atom,foo},2}.
+  {label,6}.
     return.
diff --git a/lib/compiler/test/beam_validator_SUITE_data/illegal_instruction.S b/lib/compiler/test/beam_validator_SUITE_data/illegal_instruction.S
deleted file mode 100644
index d6e92abc71..0000000000
--- a/lib/compiler/test/beam_validator_SUITE_data/illegal_instruction.S
+++ /dev/null
@@ -1,26 +0,0 @@
-{module, illegal_instruction}.  %% version = 0
-
-{exports, []}.
-
-{attributes, []}.
-
-{labels, 7}.
-
-
-{function, t, 1, 2}.
-  {label,1}.
-    {func_info,{atom,illegal_instruction},{atom,t},1}.
-  {label,2}.
-    {my_illegal_instruction,{x,0}}.
-    return.
-
-
-{function, x, 1, 4}.
-  {label,3}.
-    bad_func_info.
-  {label,4}.
-    {my_illegal_instruction,{x,0}}.
-    return.
-
-{function, y, 0, 17}.
-	
\ No newline at end of file
diff --git a/lib/compiler/test/beam_validator_SUITE_data/map_field_lists.S b/lib/compiler/test/beam_validator_SUITE_data/map_field_lists.S
new file mode 100644
index 0000000000..5e7ccc1e5d
--- /dev/null
+++ b/lib/compiler/test/beam_validator_SUITE_data/map_field_lists.S
@@ -0,0 +1,29 @@
+{module, map_field_lists}.  %% version = 0
+
+{exports, [{x,1},{y,1}]}.
+
+{attributes, []}.
+
+{labels, 5}.
+
+
+{function, x, 1, 2}.
+  {label,1}.
+    {line,[{location,"map_field_lists.erl",4}]}.
+    {func_info,{atom,map_field_lists},{atom,x},1}.
+  {label,2}.
+    {test,is_map,{f,1},[{x,0}]}.
+    {test,has_map_fields,{f,1},{x,0},{list,[{atom,a},{atom,a}]}}.
+    {move,{atom,ok},{x,0}}.
+    return.
+
+
+{function, y, 1, 4}.
+  {label,3}.
+    {line,[{location,"map_field_lists.erl",7}]}.
+    {func_info,{atom,map_field_lists},{atom,y},1}.
+  {label,4}.
+    {test,is_map,{f,3},[{x,0}]}.
+    {test,has_map_fields,{f,3},{x,0},{list,[]}}.
+    {move,{atom,ok},{x,0}}.
+    return.
diff --git a/lib/compiler/test/beam_validator_SUITE_data/merge_undefined.S b/lib/compiler/test/beam_validator_SUITE_data/merge_undefined.S
index 3d76127824..481d55045d 100644
--- a/lib/compiler/test/beam_validator_SUITE_data/merge_undefined.S
+++ b/lib/compiler/test/beam_validator_SUITE_data/merge_undefined.S
@@ -22,7 +22,8 @@
   {label,4}.
     {allocate_heap,1,6,2}.
     {move,{x,1},{y,0}}.
-    {put_string,2,{string,"~p"},{x,0}}.
+    {put_list,{integer,112},nil,{x,0}}.
+    {put_list,{integer,126},{x,0},{x,0}}.
     {put_list,{y,0},nil,{x,1}}.
     {'%live',2}.
     {call_ext,2,{extfunc,io,format,2}}.
diff --git a/lib/compiler/test/beam_validator_SUITE_data/no_exception_in_catch.S b/lib/compiler/test/beam_validator_SUITE_data/no_exception_in_catch.S
index e08a718a39..1a5b417a5f 100644
--- a/lib/compiler/test/beam_validator_SUITE_data/no_exception_in_catch.S
+++ b/lib/compiler/test/beam_validator_SUITE_data/no_exception_in_catch.S
@@ -26,7 +26,7 @@
     {call_ext,1,{extfunc,erlang,erase,1}}.
     {move,{atom,nested},{x,0}}.
     {call_ext,1,{extfunc,erlang,erase,1}}.
-    {bif,self,nofail,[],{x,0}}.
+    {bif,self,{f,0},[],{x,0}}.
     {'try',{y,8},{f,13}}.
     {'try',{y,7},{f,11}}.
     {'try',{y,6},{f,9}}.
@@ -34,7 +34,7 @@
 %% Because the following instructions can't possible throw an exception,
 %% label 7 used to get no state. Now the try_end itself will save the state.
     {move,{x,0},{y,4}}.
-    {bif,self,nofail,[],{x,0}}.
+    {bif,self,{f,0},[],{x,0}}.
     {'%live',1}.
     {try_end,{y,5}}.
     {test,is_eq_exact,{f,15},[{x,0},{y,4}]}.
diff --git a/lib/compiler/test/beam_validator_SUITE_data/stack.S b/lib/compiler/test/beam_validator_SUITE_data/stack.S
index 244c22a2f9..e4356a9d00 100644
--- a/lib/compiler/test/beam_validator_SUITE_data/stack.S
+++ b/lib/compiler/test/beam_validator_SUITE_data/stack.S
@@ -1,10 +1,10 @@
 {module, stack}.  %% version = 0
 
-{exports, [{a,2},{b,2},{c,2},{d,2},{e,2}]}.
+{exports, [{a,2},{b,2},{c,2},{d,2},{e,2},{bad_1,0},{bad_2,0},{foo,0}]}.
 
 {attributes, []}.
 
-{labels, 21}.
+{labels, 17}.
 
 
 {function, a, 2, 2}.
diff --git a/lib/compiler/test/beam_validator_SUITE_data/state_after_fault_in_catch.S b/lib/compiler/test/beam_validator_SUITE_data/state_after_fault_in_catch.S
index 8e27347ed5..c3656d6218 100644
--- a/lib/compiler/test/beam_validator_SUITE_data/state_after_fault_in_catch.S
+++ b/lib/compiler/test/beam_validator_SUITE_data/state_after_fault_in_catch.S
@@ -14,7 +14,7 @@
     {allocate,1,0}.
     {'catch',{y,0},{f,3}}.
     {move,{atom,apa},{x,0}}.
-    {call_ext,1,{extfunc,erlang,fault,1}}.
+    {call_ext,1,{extfunc,erlang,error,1}}.
   {label,3}.
     {catch_end,{y,0}}.
     {move,{x,1},{x,0}}.
diff --git a/lib/compiler/test/beam_validator_SUITE_data/undef_label.S b/lib/compiler/test/beam_validator_SUITE_data/undef_label.S
deleted file mode 100644
index dd29066bf4..0000000000
--- a/lib/compiler/test/beam_validator_SUITE_data/undef_label.S
+++ /dev/null
@@ -1,22 +0,0 @@
-{module, undef_label}.  %% version = 0
-
-{exports, []}.
-
-{attributes, []}.
-
-{labels, 7}.
-
-
-{function, t, 1, 2}.
-  {label,1}.
-    {func_info,{atom,undef_label},{atom,t},1}.
-  {label,2}.
-    {test,is_eq_exact,{f,42},[{x,0},{atom,x}]}.
-    {move,{atom,ok},{x,0}}.
-    return.
-
-{function, x, 1, 17}.
-  {label,3}.
-    {func_info,{atom,undef_label},{atom,x},1}.
-  {label,4}.
-    return.
diff --git a/lib/compiler/test/beam_validator_SUITE_data/uninit.S b/lib/compiler/test/beam_validator_SUITE_data/uninit.S
index 1a45c31411..9a66f4f7d6 100644
--- a/lib/compiler/test/beam_validator_SUITE_data/uninit.S
+++ b/lib/compiler/test/beam_validator_SUITE_data/uninit.S
@@ -1,9 +1,11 @@
 {module, uninit}.  %% version = 0
 
-{exports, []}.
+{exports, [{sum_1,2},{sum_2,2},{sum_3,2}]}.
 
 {attributes, []}.
 
+{labels, 9}.
+
 {function, sum_1, 2, 2}.
   {label,1}.
     {func_info,{atom,t},{atom,sum_1},2}.
@@ -11,7 +13,7 @@
     {allocate,1,2}.
     {move,{y,0},{x,0}}.
     {'%live',1}.
-    {call,1,{f,10}}.
+    {call,1,{f,8}}.
     {bif,'+',{f,0},[{x,0},{y,0}],{x,0}}.
     {'%live',1}.
     {deallocate,1}.
@@ -23,7 +25,7 @@
   {label,4}.
     {allocate,1,2}.
     {'%live',1}.
-    {call,1,{f,10}}.
+    {call,1,{f,8}}.
     {bif,'+',{f,0},[{x,0},{y,0}],{x,0}}.
     {'%live',1}.
     {deallocate,1}.
@@ -35,14 +37,14 @@
   {label,6}.
     {allocate_zero,1,2}.
     {'%live',1}.
-    {call,1,{f,10}}.
+    {call,1,{f,8}}.
     {bif,'+',{f,0},[{x,0},{y,0}],{x,0}}.
     {'%live',1}.
     {deallocate,1}.
     return.
 
-{function, id, 1, 10}.
-  {label,9}.
+{function, id, 1, 8}.
+  {label,7}.
     {func_info,{atom,t},{atom,id},1}.
-  {label,10}.
+  {label,8}.
     return.
diff --git a/lib/compiler/test/beam_validator_SUITE_data/unsafe_catch.S b/lib/compiler/test/beam_validator_SUITE_data/unsafe_catch.S
index 500ac11377..f7d3f805b3 100644
--- a/lib/compiler/test/beam_validator_SUITE_data/unsafe_catch.S
+++ b/lib/compiler/test/beam_validator_SUITE_data/unsafe_catch.S
@@ -17,7 +17,7 @@
     {bs_put_integer,{f,0},
                     {integer,8},
                     1,
-                    {field_flags,[aligned,unsigned,big]},
+                    {field_flags,[unsigned,big]},
                     {x,0}}.
     {move,{x,1},{y,0}}.
     {move,{x,2},{x,0}}.
@@ -34,7 +34,7 @@
     {bs_put_integer,{f,0},
                     {integer,16},
                     1,
-                    {field_flags,[aligned,unsigned,big]},
+                    {field_flags,[unsigned,big]},
                     {y,0}}.
     {move,{x,0},{y,0}}.
     {move,{x,1},{x,0}}.
@@ -55,12 +55,12 @@
     {bs_put_binary,{f,0},
                    {atom,all},
                    8,
-                   {field_flags,[aligned,unsigned,big]},
+                   {field_flags,[unsigned,big]},
                    {y,0}}.
     {bs_put_binary,{f,0},
                    {atom,all},
                    8,
-                   {field_flags,[aligned,unsigned,big]},
+                   {field_flags,[unsigned,big]},
                    {x,0}}.
     {move,{x,1},{x,0}}.
     {deallocate,2}.
diff --git a/lib/compiler/test/beam_validator_SUITE_data/xrange.S b/lib/compiler/test/beam_validator_SUITE_data/xrange.S
index 3abbdffbc2..c6f20288f7 100644
--- a/lib/compiler/test/beam_validator_SUITE_data/xrange.S
+++ b/lib/compiler/test/beam_validator_SUITE_data/xrange.S
@@ -1,10 +1,10 @@
 {module, xrange}.  %% version = 0
 
-{exports, [{module_info,0},{module_info,1},{prod,2},{sum,2},{sum_prod,3}]}.
+{exports, [{sum_1,2},{sum_2,2},{sum_3,2},{sum_4,2}]}.
 
 {attributes, []}.
 
-{labels, 8}.
+{labels, 9}.
 
 
 {function, sum_1, 2, 2}.
diff --git a/lib/compiler/test/bs_bit_binaries_SUITE.erl b/lib/compiler/test/bs_bit_binaries_SUITE.erl
index 8609a490f5..2433e7621e 100644
--- a/lib/compiler/test/bs_bit_binaries_SUITE.erl
+++ b/lib/compiler/test/bs_bit_binaries_SUITE.erl
@@ -37,7 +37,7 @@ all() ->
     [{group,p}].
 
 groups() -> 
-    [{p,test_lib:parallel(),
+    [{p,[parallel],
       [misc,horrid_match,test_bitstr,test_bit_size,
        asymmetric_tests,big_asymmetric_tests,
        binary_to_and_from_list,big_binary_to_and_from_list,
diff --git a/lib/compiler/test/bs_construct_SUITE.erl b/lib/compiler/test/bs_construct_SUITE.erl
index ce39de2a82..9df874c387 100644
--- a/lib/compiler/test/bs_construct_SUITE.erl
+++ b/lib/compiler/test/bs_construct_SUITE.erl
@@ -39,7 +39,7 @@ all() ->
     [{group,p}].
 
 groups() -> 
-    [{p,test_lib:parallel(),
+    [{p,[parallel],
       [two,test1,fail,float_bin,in_guard,in_catch,
        nasty_literals,side_effect,opt,otp_7556,float_arith,
        otp_8054]}].
diff --git a/lib/compiler/test/bs_match_SUITE.erl b/lib/compiler/test/bs_match_SUITE.erl
index 10e3451e8f..b54db06339 100644
--- a/lib/compiler/test/bs_match_SUITE.erl
+++ b/lib/compiler/test/bs_match_SUITE.erl
@@ -24,7 +24,7 @@
 	 init_per_group/2,end_per_group/2,
 	 init_per_testcase/2,end_per_testcase/2,
 	 fun_shadow/1,int_float/1,otp_5269/1,null_fields/1,wiger/1,
-	 bin_tail/1,save_restore/1,shadowed_size_var/1,
+	 bin_tail/1,save_restore/1,
 	 partitioned_bs_match/1,function_clause/1,
 	 unit/1,shared_sub_bins/1,bin_and_float/1,
 	 dec_subidentifiers/1,skip_optional_tag/1,
@@ -34,7 +34,8 @@
 	 otp_7188/1,otp_7233/1,otp_7240/1,otp_7498/1,
 	 match_string/1,zero_width/1,bad_size/1,haystack/1,
 	 cover_beam_bool/1,matched_out_size/1,follow_fail_branch/1,
-	 no_partition/1,calling_a_binary/1,binary_in_map/1]).
+	 no_partition/1,calling_a_binary/1,binary_in_map/1,
+	 match_string_opt/1]).
 
 -export([coverage_id/1,coverage_external_ignore/2]).
 
@@ -48,9 +49,9 @@ all() ->
     [{group,p}].
 
 groups() -> 
-    [{p,test_lib:parallel(),
+    [{p,[parallel],
       [fun_shadow,int_float,otp_5269,null_fields,wiger,
-       bin_tail,save_restore,shadowed_size_var,
+       bin_tail,save_restore,
        partitioned_bs_match,function_clause,unit,
        shared_sub_bins,bin_and_float,dec_subidentifiers,
        skip_optional_tag,wfbm,degenerated_match,bs_sum,
@@ -59,7 +60,8 @@ groups() ->
        matching_and_andalso,otp_7188,otp_7233,otp_7240,
        otp_7498,match_string,zero_width,bad_size,haystack,
        cover_beam_bool,matched_out_size,follow_fail_branch,
-       no_partition,calling_a_binary,binary_in_map]}].
+       no_partition,calling_a_binary,binary_in_map,
+       match_string_opt]}].
 
 
 init_per_suite(Config) ->
@@ -322,16 +324,6 @@ bad_float_unpack_match(<<F:64/float>>) -> F;
 bad_float_unpack_match(<<I:64/integer-signed>>) -> I.
 
 
-shadowed_size_var(Config) when is_list(Config) ->
-    ?line PrivDir = ?config(priv_dir, Config),
-    ?line Dir = filename:dirname(code:which(?MODULE)),
-    ?line Core = filename:join(Dir, "bs_shadowed_size_var"),
-    ?line Opts = [from_core,{outdir,PrivDir}|test_lib:opt_opts(?MODULE)],
-    ?line io:format("~p", [Opts]),
-    ?line {ok,Mod} = c:c(Core, Opts),
-    ?line [42|<<"abcde">>] = Mod:filter_essentials([<<42:32>>|<<5:32,"abcde">>]),
-    ok.
-
 partitioned_bs_match(Config) when is_list(Config) ->
     ?line <<1,2,3>> = partitioned_bs_match(blurf, <<42,1,2,3>>),
     ?line error = partitioned_bs_match(10, <<7,8,15,13>>),
@@ -368,11 +360,20 @@ partitioned_bs_match_3(Var, <<_>>) -> Var;
 partitioned_bs_match_3(1, 2) -> ok.
 
 function_clause(Config) when is_list(Config)  ->
-    ?line ok = function_clause_1(<<0,7,0,7,42>>),
-    ?line fc(function_clause_1, [<<0,1,2,3>>],
-	     catch function_clause_1(<<0,1,2,3>>)),
-    ?line fc(function_clause_1, [<<0,1,2,3>>],
-	     catch function_clause_1(<<0,7,0,1,2,3>>)),
+    ok = function_clause_1(<<0,7,0,7,42>>),
+    fc(function_clause_1, [<<0,1,2,3>>],
+       catch function_clause_1(<<0,1,2,3>>)),
+    fc(function_clause_1, [<<0,1,2,3>>],
+       catch function_clause_1(<<0,7,0,1,2,3>>)),
+
+    ok = function_clause_2(<<0,7,0,7,42>>),
+    ok = function_clause_2(<<255>>),
+    ok = function_clause_2(<<13:4>>),
+    fc(function_clause_2, [<<0,1,2,3>>],
+       catch function_clause_2(<<0,1,2,3>>)),
+    fc(function_clause_2, [<<0,1,2,3>>],
+       catch function_clause_2(<<0,7,0,1,2,3>>)),
+
     ok.
 
 function_clause_1(<<0:8,7:8,T/binary>>) ->
@@ -380,6 +381,13 @@ function_clause_1(<<0:8,7:8,T/binary>>) ->
 function_clause_1(<<_:8>>) ->
     ok.
 
+function_clause_2(<<0:8,7:8,T/binary>>) ->
+    function_clause_2(T);
+function_clause_2(<<_:8>>) ->
+    ok;
+function_clause_2(<<_:4>>) ->
+    ok.
+
 unit(Config) when is_list(Config) ->
     ?line 42 = peek1(<<42>>),
     ?line 43 = peek1(<<43,1,2>>),
@@ -1208,6 +1216,14 @@ match_binary_in_map(Map) ->
 	    ok
     end.
 
+match_string_opt(Config) when is_list(Config) ->
+    {x,<<1,2,3>>,{<<1>>,{v,<<1,2,3>>}}} =
+	do_match_string_opt({<<1>>,{v,<<1,2,3>>}}),
+    ok.
+
+do_match_string_opt({<<1>>,{v,V}}=T) ->
+    {x,V,T}.
+
 
 check(F, R) ->
     R = F().
diff --git a/lib/compiler/test/bs_shadowed_size_var.core b/lib/compiler/test/bs_shadowed_size_var.core
deleted file mode 100644
index d1d5ebba6d..0000000000
--- a/lib/compiler/test/bs_shadowed_size_var.core
+++ /dev/null
@@ -1,25 +0,0 @@
-module 'bs_shadowed_size_var' ['filter_essentials'/1]
-    attributes []
-
-%% Reduced code from beam_asm inlined using the old inliner.
-
-'filter_essentials'/1 =
-    fun (_cor0) ->
-	case _cor0 of
-	  <[#{#<Sz>(32,1,'integer',['unsigned','big']) }#|T]> when 'true' ->
-	      let <_cor4> =
-                      case T of
-			%% Variable 'Sz' repeated here. Should work.
-			<#{#<Sz>(32,1,'integer',['unsigned','big']),
-			    #<Data>(Sz,8,'binary',['unsigned','big'])}#> when 'true' ->
-			    Data
-			<_cor5> when 'true' ->
-			    primop 'match_fail'
-				({'case_clause',{_cor5}})
-		      end
-	      in  [Sz|_cor4]
-	  <_cor5> when 'true' ->
-	      primop 'match_fail'
-		  ({'function_clause',_cor5})
-	end
-end
diff --git a/lib/compiler/test/compilation_SUITE.erl b/lib/compiler/test/compilation_SUITE.erl
index f7b1dbdddf..f570d94f7d 100644
--- a/lib/compiler/test/compilation_SUITE.erl
+++ b/lib/compiler/test/compilation_SUITE.erl
@@ -309,8 +309,8 @@ load_and_call(Out, Module) ->
     %% Smoke-test of beam disassembler.
     ?line test_lib:smoke_disasm(Module),
 
-    ?line true = erlang:delete_module(Module),
-    ?line true = erlang:purge_module(Module),
+    _ = code:delete(Module),
+    _ = code:purge(Module),
 
     %% Restore state of trap_exit just in case. (Since the compiler
     %% uses a temporary process, we will get {'EXIT',Pid,normal} messages
@@ -428,41 +428,35 @@ self_compile_old_inliner(Config) when is_list(Config) ->
     self_compile_1(Config, "old", [verbose,{inline,500}]).
 
 self_compile_1(Config, Prefix, Opts) ->
-    ?line Dog = test_server:timetrap(test_server:minutes(40)),
+    Dog = test_server:timetrap(test_server:minutes(40)),
 
-    ?line Priv = ?config(priv_dir,Config),
-    ?line Version = compiler_version(),
+    Priv = ?config(priv_dir,Config),
+    Version = compiler_version(),
 
     %% Compile the compiler. (In this node to get better coverage.)
-    ?line CompA = make_compiler_dir(Priv, Prefix++"compiler_a"),
-    ?line VsnA = Version ++ ".0",
-    ?line compile_compiler(compiler_src(), CompA, VsnA, [clint|Opts]),
+    CompA = make_compiler_dir(Priv, Prefix++"compiler_a"),
+    VsnA = Version ++ ".0",
+    compile_compiler(compiler_src(), CompA, VsnA, [clint0,clint|Opts]),
 
     %% Compile the compiler again using the newly compiled compiler.
     %% (In another node because reloading the compiler would disturb cover.)
     CompilerB = Prefix++"compiler_b",
     CompB = make_compiler_dir(Priv, CompilerB),
-    ?line VsnB = VsnA ++ ".0",
+    VsnB = VsnA ++ ".0",
     self_compile_node(CompA, CompB, VsnB, Opts),
 
-    %% Compare compiler directories.
-    ?line compare_compilers(CompA, CompB),
+    %% Compare compiler directories. The compiler directories should
+    %% be equal (except for beam_asm that contains the compiler version).
+    compare_compilers(CompA, CompB),
 
-    %% Compile and compare compiler C.
-    ?line CompilerC = Prefix++"compiler_c",
-    ?line CompC = make_compiler_dir(Priv, CompilerC),
-    ?line VsnC = VsnB ++ ".0",
-    self_compile_node(CompB, CompC, VsnC, Opts),
-    ?line compare_compilers(CompB, CompC),
-
-    ?line test_server:timetrap_cancel(Dog),
+    test_server:timetrap_cancel(Dog),
     ok.
 
 self_compile_node(CompilerDir, OutDir, Version, Opts) ->
-    ?line Dog = test_server:timetrap(test_server:minutes(15)),
-    ?line Pa = "-pa " ++ filename:dirname(code:which(?MODULE)) ++
+    Dog = test_server:timetrap(test_server:minutes(15)),
+    Pa = "-pa " ++ filename:dirname(code:which(?MODULE)) ++
 	" -pa " ++ CompilerDir,
-    ?line Files = compiler_src(),
+    Files = compiler_src(),
 
     %% We don't want the cover server started on the other node,
     %% because it will load the same cover-compiled code as on this
@@ -472,7 +466,7 @@ self_compile_node(CompilerDir, OutDir, Version, Opts) ->
        fun() ->
 	       compile_compiler(Files, OutDir, Version, Opts)
        end, Pa),
-    ?line test_server:timetrap_cancel(Dog),
+    test_server:timetrap_cancel(Dog),
     ok.
 
 compile_compiler(Files, OutDir, Version, InlineOpts) ->
@@ -499,27 +493,22 @@ compiler_modules(Dir) ->
     [list_to_atom(filename:rootname(filename:basename(F))) || F <- Files].
 
 make_compiler_dir(Priv, Dir0) ->
-    ?line Dir = filename:join(Priv, Dir0),
-    ?line ok = file:make_dir(Dir),
+    Dir = filename:join(Priv, Dir0),
+    ok = file:make_dir(Dir),
     Dir.
 
-make_current(Dir) ->    
-    true = code:add_patha(Dir),
-    lists:foreach(fun(File) ->
-			  c:l(File)
-		  end, compiler_modules(Dir)),
-    io:format("~p\n", [code:which(compile)]).
-
 compiler_version() ->
-    {value,{version,Version}} = lists:keysearch(version, 1,
-						compile:module_info(compile)),
+    {version,Version} = lists:keyfind(version, 1,
+				      compile:module_info(compile)),
     Version.
 
 compare_compilers(ADir, BDir) ->
     {[],[],D} = beam_lib:cmp_dirs(ADir, BDir),
-    [] = [T || {A,_}=T <- D,
-	       filename:basename(A) =/= "beam_asm.beam"]. %Contains compiler version.
 
+    %% beam_asm.beam contains compiler version and therefore it *must*
+    %% compare unequal.
+    ["beam_asm.beam"] = [filename:basename(A) || {A,_} <- D],
+    ok.
 
 %%%
 %%% The only test of the following code is that it compiles.
@@ -611,12 +600,10 @@ otp_7345(Config) when is_list(Config) ->
 
 otp_7345(ObjRef, _RdEnv, Args) ->
     Cid = ObjRef#contextId.cid,
-    _DpRef =
-	#dpRef{cid = Cid,
+    _ =	#dpRef{cid = Cid,
 		     ms_device_context_id = cid_id,
 		     tlli = #ptmsi{value = 0}},
-    _QosProfile =
-	#qosProfileBssgp{peak_bit_rate_msb = 0,
+    _ =	#qosProfileBssgp{peak_bit_rate_msb = 0,
 			 peak_bit_rate_lsb = 80,
 			 t_a_precedence = 49},
     [Cpdu|_] = Args,
diff --git a/lib/compiler/test/compile_SUITE.erl b/lib/compiler/test/compile_SUITE.erl
index 8cb7d1b55b..6b0369bf98 100644
--- a/lib/compiler/test/compile_SUITE.erl
+++ b/lib/compiler/test/compile_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1997-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2014. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -30,7 +30,7 @@
 	 other_output/1, encrypted_abstr/1,
 	 bad_record_use1/1, bad_record_use2/1, strict_record/1,
 	 missing_testheap/1, cover/1, env/1, core/1, asm/1,
-	 sys_pre_attributes/1]).
+	 sys_pre_attributes/1, dialyzer/1]).
 
 -export([init/3]).
 
@@ -47,7 +47,7 @@ all() ->
      other_output, encrypted_abstr,
      {group, bad_record_use}, strict_record,
      missing_testheap, cover, env, core, asm,
-     sys_pre_attributes].
+     sys_pre_attributes, dialyzer].
 
 groups() -> 
     [{bad_record_use, [],
@@ -102,6 +102,8 @@ file_1(Config) when is_list(Config) ->
     ?line compile_and_verify(Simple, Target, [debug_info]),
     ?line {ok,simple} = compile:file(Simple, [no_line_info]), %Coverage
 
+    {ok,simple} = compile:file(Simple, [{eprof,beam_z}]), %Coverage
+
     ?line ok = file:set_cwd(Cwd),
     ?line true = exists(Target),
     ?line passed = run(Target, test, []),
@@ -124,7 +126,8 @@ file_1(Config) when is_list(Config) ->
 forms_2(Config) when is_list(Config) ->
     Src = "/foo/bar",
     AbsSrc = filename:absname(Src),
-    {ok,simple,Binary} = compile:forms([{attribute,1,module,simple}],
+    Anno = erl_anno:new(1),
+    {ok,simple,Binary} = compile:forms([{attribute,Anno,module,simple}],
 				       [binary,{source,Src}]),
     code:load_binary(simple, Src, Binary),
     Info = simple:module_info(compile),
@@ -365,7 +368,7 @@ listings_big(Config) when is_list(Config) ->
     ?line do_listing(Big, TargetDir, dkern, ".kernel"),
 
     ?line Target = filename:join(TargetDir, big),
-    ?line {ok,big} = compile:file(Target, [asm,{outdir,TargetDir}]),
+    {ok,big} = compile:file(Target, [from_asm,{outdir,TargetDir}]),
 
     %% Cleanup.
     ?line ok = file:delete(Target ++ ".beam"),
@@ -748,42 +751,65 @@ env_1(Simple, Target) ->
 %% compile the generated Core Erlang files.
 
 core(Config) when is_list(Config) ->
-    ?line Dog = test_server:timetrap(test_server:minutes(5)),
-    ?line PrivDir = ?config(priv_dir, Config),
-    ?line Outdir = filename:join(PrivDir, "core"),
-    ?line ok = file:make_dir(Outdir),
+    PrivDir = ?config(priv_dir, Config),
+    Outdir = filename:join(PrivDir, "core"),
+    ok = file:make_dir(Outdir),
 
-    ?line Wc = filename:join(filename:dirname(code:which(?MODULE)), "*.beam"),
-    ?line TestBeams = filelib:wildcard(Wc),
-    ?line Abstr = [begin {ok,{Mod,[{abstract_code,
+    Wc = filename:join(filename:dirname(code:which(?MODULE)), "*.beam"),
+    TestBeams = filelib:wildcard(Wc),
+    Abstr = [begin {ok,{Mod,[{abstract_code,
 				    {raw_abstract_v1,Abstr}}]}} = 
 			     beam_lib:chunks(Beam, [abstract_code]),
 			 {Mod,Abstr} end || Beam <- TestBeams],
-    ?line Res = test_lib:p_run(fun(F) -> do_core(F, Outdir) end, Abstr),
-    ?line test_server:timetrap_cancel(Dog),
-    Res.
-
+    test_lib:p_run(fun(F) -> do_core(F, Outdir) end, Abstr).
     
 do_core({M,A}, Outdir) ->
     try
-	{ok,M,Core} = compile:forms(A, [to_core,report]),
-	CoreFile = filename:join(Outdir, atom_to_list(M)++".core"),
-	CorePP = core_pp:format(Core),
-	ok = file:write_file(CoreFile, CorePP),
-	case compile:file(CoreFile, [clint,from_core,binary]) of
-	    {ok,M,_} ->
-		ok = file:delete(CoreFile);
-	    Other ->
-		io:format("*** core_lint failure '~p' for ~s\n",
-			  [Other,CoreFile]),
-		error
-	end
-    catch Class:Error ->
+	do_core_1(M, A, Outdir)
+    catch
+	throw:{error,Error} ->
+	    io:format("*** compilation failure '~p' for module ~s\n",
+		      [Error,M]),
+	    error;
+	Class:Error ->
 	    io:format("~p: ~p ~p\n~p\n",
 		      [M,Class,Error,erlang:get_stacktrace()]),
 	    error
     end.
 
+do_core_1(M, A, Outdir) ->
+    {ok,M,Core0} = compile:forms(A, [to_core]),
+    CoreFile = filename:join(Outdir, atom_to_list(M)++".core"),
+    CorePP = core_pp:format(Core0),
+    ok = file:write_file(CoreFile, CorePP),
+
+    %% Parse the .core file and return the result as Core Erlang Terms.
+    Core = case compile:file(CoreFile, [report_errors,from_core,no_copt,to_core,binary]) of
+	       {ok,M,Core1} -> Core1;
+	       Other -> throw({error,Other})
+	   end,
+    ok = file:delete(CoreFile),
+
+    %% Compile as usual (including optimizations).
+    compile_forms(Core, [clint,from_core,binary]),
+
+    %% Don't optimize to test that we are not dependent
+    %% on the Core Erlang optmimization passes.
+    %% (Example of a previous bug: The core_parse pass
+    %% would not turn map literals into #c_literal{}
+    %% records; if sys_core_fold was run it would fix
+    %% that; if sys_core_fold was not run v3_kernel would
+    %% crash.)
+    compile_forms(Core, [clint,from_core,no_copt,binary]),
+
+    ok.
+
+compile_forms(Forms, Opts) ->
+    case compile:forms(Forms, [report_errors|Opts]) of
+	{ok,[],_} ->  ok;
+	Other -> throw({error,Other})
+    end.
+
 %% Compile to Beam assembly language (.S) and then try to
 %% run .S through the compiler again.
 
@@ -854,6 +880,20 @@ sys_pre_attributes(Config) ->
 				  [report,verbose]),
     ok.
 
+%% Test the dialyzer option to cover more code.
+dialyzer(Config) ->
+    Priv = ?config(priv_dir, Config),
+    file:set_cwd(?config(data_dir, Config)),
+    Opts = [{outdir,Priv},report_errors],
+    M = dialyzer_test,
+    {ok,M} = c:c(M, [dialyzer|Opts]),
+    [{a,b,c}] = M:M(),
+
+    %% Cover huge line numbers without the 'dialyzer' option.
+    {ok,M} = c:c(M, Opts),
+    [{a,b,c}] = M:M(),
+    ok.
+
 %%%
 %%% Utilities.
 %%%
diff --git a/lib/compiler/test/compile_SUITE_data/dialyzer_test.erl b/lib/compiler/test/compile_SUITE_data/dialyzer_test.erl
new file mode 100644
index 0000000000..ed65ff9c43
--- /dev/null
+++ b/lib/compiler/test/compile_SUITE_data/dialyzer_test.erl
@@ -0,0 +1,39 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+-module(dialyzer_test).
+-export([?MODULE/0,turtle/0,test/1,huge/1]).
+
+-record(turtle, {a,b,c}).
+-record(tortoise, {a,b,c}).
+
+?MODULE() ->
+    [{a,b,c}].
+
+turtle() ->
+    #turtle{a=1,b=2,c=3}.
+
+test(T) ->
+    {T#tortoise.a,T#tortoise.b}.
+
+-file("dialyzer_test", 100000000).
+
+huge(X) ->
+    #turtle{a=42,b=100,c=511},
+    X#tortoise.a.
diff --git a/lib/compiler/test/core_SUITE.erl b/lib/compiler/test/core_SUITE.erl
index 428ad65364..c4a7efbfc4 100644
--- a/lib/compiler/test/core_SUITE.erl
+++ b/lib/compiler/test/core_SUITE.erl
@@ -24,7 +24,9 @@
 	 dehydrated_itracer/1,nested_tries/1,
 	 seq_in_guard/1,make_effect_seq/1,eval_is_boolean/1,
 	 unsafe_case/1,nomatch_shadow/1,reversed_annos/1,
-	 map_core_test/1,eval_case/1,bad_boolean_guard/1]).
+	 map_core_test/1,eval_case/1,bad_boolean_guard/1,
+	 bs_shadowed_size_var/1
+	]).
 
 -include_lib("test_server/include/test_server.hrl").
 
@@ -50,7 +52,8 @@ groups() ->
     [{p,test_lib:parallel(),
       [dehydrated_itracer,nested_tries,seq_in_guard,make_effect_seq,
        eval_is_boolean,unsafe_case,nomatch_shadow,reversed_annos,
-       map_core_test,eval_case,bad_boolean_guard
+       map_core_test,eval_case,bad_boolean_guard,
+       bs_shadowed_size_var
    ]}].
 
 
@@ -78,6 +81,8 @@ end_per_group(_GroupName, Config) ->
 ?comp(map_core_test).
 ?comp(eval_case).
 ?comp(bad_boolean_guard).
+?comp(bs_shadowed_size_var).
+
 
 try_it(Mod, Conf) ->
     Src = filename:join(?config(data_dir, Conf), atom_to_list(Mod)),
@@ -87,4 +92,7 @@ try_it(Mod, Conf) ->
 compile_and_load(Src, Opts) ->
     {ok,Mod,Bin} = compile:file(Src, [from_core,report,time,binary|Opts]),
     {module,Mod} = code:load_binary(Mod, Mod, Bin),
-    ok = Mod:Mod().
+    ok = Mod:Mod(),
+    _ = code:delete(Mod),
+    _ = code:purge(Mod),
+    ok.
diff --git a/lib/compiler/test/core_SUITE_data/bs_shadowed_size_var.core b/lib/compiler/test/core_SUITE_data/bs_shadowed_size_var.core
new file mode 100644
index 0000000000..0ade037e05
--- /dev/null
+++ b/lib/compiler/test/core_SUITE_data/bs_shadowed_size_var.core
@@ -0,0 +1,66 @@
+module 'bs_shadowed_size_var'
+   ['filter_essentials'/1,
+    'bs_shadowed_size_var'/0]
+    attributes []
+
+%% bs_shadowed_size_var() ->
+%%    [42|<<"abcde">>] = Mod:filter_essentials([<<42:32>>|<<5:32,"abcde">>]),
+%%    ok.
+
+'bs_shadowed_size_var'/0 =
+    fun () ->
+	case <> of
+	  <> when 'true' ->
+	      case apply 'filter_essentials'/1
+		       ([#{#<0>(8,1,'integer',['unsigned'|['big']]),
+			   #<0>(8,1,'integer',['unsigned'|['big']]),
+			   #<0>(8,1,'integer',['unsigned'|['big']]),
+			   #<42>(8,1,'integer',['unsigned'|['big']])}#|#{#<0>(8,1,'integer',['unsigned'|['big']]),
+									 #<0>(8,1,'integer',['unsigned'|['big']]),
+									 #<0>(8,1,'integer',['unsigned'|['big']]),
+									 #<5>(8,1,'integer',['unsigned'|['big']]),
+									 #<97>(8,1,'integer',['unsigned'|['big']]),
+									 #<98>(8,1,'integer',['unsigned'|['big']]),
+									 #<99>(8,1,'integer',['unsigned'|['big']]),
+									 #<100>(8,1,'integer',['unsigned'|['big']]),
+									 #<101>(8,1,'integer',['unsigned'|['big']])}#]) of
+		<[42|#{#<97>(8,1,'integer',['unsigned'|['big']]),
+		       #<98>(8,1,'integer',['unsigned'|['big']]),
+		       #<99>(8,1,'integer',['unsigned'|['big']]),
+		       #<100>(8,1,'integer',['unsigned'|['big']]),
+		       #<101>(8,1,'integer',['unsigned'|['big']])}#]> when 'true' ->
+		    'ok'
+		( <_cor0> when 'true' ->
+		      primop 'match_fail'
+			  ({'badmatch',_cor0})
+		  -| ['compiler_generated'] )
+	      end
+	  ( <> when 'true' ->
+		( primop 'match_fail'
+		      ({'function_clause'})
+		  -| [{'function_name',{'bs_shadowed_size_var',0}}] )
+	    -| ['compiler_generated'] )
+	end
+
+%% Reduced code from beam_asm inlined using the old inliner.
+
+'filter_essentials'/1 =
+    fun (_cor0) ->
+	case _cor0 of
+	  <[#{#<Sz>(32,1,'integer',['unsigned','big']) }#|T]> when 'true' ->
+	      let <_cor4> =
+                      case T of
+			%% Variable 'Sz' repeated here. Should work.
+			<#{#<Sz>(32,1,'integer',['unsigned','big']),
+			    #<Data>(Sz,8,'binary',['unsigned','big'])}#> when 'true' ->
+			    Data
+			<_cor5> when 'true' ->
+			    primop 'match_fail'
+				({'case_clause',{_cor5}})
+		      end
+	      in  [Sz|_cor4]
+	  <_cor5> when 'true' ->
+	      primop 'match_fail'
+		  ({'function_clause',_cor5})
+	end
+end
diff --git a/lib/compiler/test/core_SUITE_data/map_core_test.core b/lib/compiler/test/core_SUITE_data/map_core_test.core
index 2aa853d450..a75f6cf24f 100644
--- a/lib/compiler/test/core_SUITE_data/map_core_test.core
+++ b/lib/compiler/test/core_SUITE_data/map_core_test.core
@@ -7,11 +7,11 @@ module 'map_core_test' ['map_core_test'/0,
     fun () ->
 	let <_cor0> =
 	    %% Line 15
-	    ~{::<'check','ok'>,::<1337,#{#<104>(8,1,'integer',['unsigned'|['big']]),
+	    ~{'check'=>'ok',1337=>#{#<104>(8,1,'integer',['unsigned'|['big']]),
 				      #<101>(8,1,'integer',['unsigned'|['big']]),
 				      #<108>(8,1,'integer',['unsigned'|['big']]),
 				      #<108>(8,1,'integer',['unsigned'|['big']]),
-				      #<111>(8,1,'integer',['unsigned'|['big']])}#>,::<'val',0>}~
+				      #<111>(8,1,'integer',['unsigned'|['big']])}#,'val'=>0}~
 	in  let <M> =
 		%% Line 15
 		apply 'id'/1
@@ -23,7 +23,7 @@ module 'map_core_test' ['map_core_test'/0,
 		in  %% Line 16
 		    case apply 'call'/2
 			     (M, _cor2) of
-		      <~{~<1337,#{#<104>(8,1,'integer',['unsigned'|['big']]),
+		      <~{1337:=#{#<104>(8,1,'integer',['unsigned'|['big']]),
 				#<101>(8,1,'integer',['unsigned'|['big']]),
 				#<108>(8,1,'integer',['unsigned'|['big']]),
 				#<108>(8,1,'integer',['unsigned'|['big']]),
@@ -39,7 +39,7 @@ module 'map_core_test' ['map_core_test'/0,
 				#<32>(8,1,'integer',['unsigned'|['big']]),
 				#<53>(8,1,'integer',['unsigned'|['big']]),
 				#<32>(8,1,'integer',['unsigned'|['big']]),
-				#<54>(8,1,'integer',['unsigned'|['big']])}#>,~<'check','ok'>,~<'val',21>}~> when 'true' ->
+				#<54>(8,1,'integer',['unsigned'|['big']])}#,'check':='ok','val':=21}~> when 'true' ->
 			  %% Line 17
 			  'ok'
 		      ( <_cor3> when 'true' ->
@@ -51,7 +51,7 @@ module 'map_core_test' ['map_core_test'/0,
     %% Line 20
     fun (_cor1,_cor0) ->
 	case <_cor1,_cor0> of
-	  <M = ~{~<1337,Bin>,~<'check',_cor8>,~<'val',Val>}~,[V|Vs]> when 'true' ->
+	  <M = ~{1337:=Bin,'check':=_cor8,'val':=Val}~,[V|Vs]> when 'true' ->
 	      let <_cor3> =
 		  %% Line 21
 		  call 'erlang':'+'
@@ -67,7 +67,7 @@ module 'map_core_test' ['map_core_test'/0,
 			      (Val, V)
 		      in  let <_cor5> =
 			      %% Line 21
-			      ~{~<1337,_cor4>,~<'val',_cor2>|M}~
+			      ~{1337:=_cor4,'val':=_cor2|M}~
 			  in  %% Line 21
 			      apply 'call'/2
 				  (_cor5, Vs)
diff --git a/lib/compiler/test/core_fold_SUITE.erl b/lib/compiler/test/core_fold_SUITE.erl
index 2de17e7653..bff9806bdd 100644
--- a/lib/compiler/test/core_fold_SUITE.erl
+++ b/lib/compiler/test/core_fold_SUITE.erl
@@ -23,7 +23,8 @@
 	 t_element/1,setelement/1,t_length/1,append/1,t_apply/1,bifs/1,
 	 eq/1,nested_call_in_case/1,guard_try_catch/1,coverage/1,
 	 unused_multiple_values_error/1,unused_multiple_values/1,
-	 multiple_aliases/1,redundant_boolean_clauses/1,mixed_matching_clauses/1]).
+	 multiple_aliases/1,redundant_boolean_clauses/1,
+	 mixed_matching_clauses/1,unnecessary_building/1]).
 
 -export([foo/0,foo/1,foo/2,foo/3]).
 
@@ -36,11 +37,12 @@ all() ->
     [{group,p}].
 
 groups() -> 
-    [{p,test_lib:parallel(),
+    [{p,[parallel],
       [t_element,setelement,t_length,append,t_apply,bifs,
        eq,nested_call_in_case,guard_try_catch,coverage,
        unused_multiple_values_error,unused_multiple_values,
-       multiple_aliases,redundant_boolean_clauses,mixed_matching_clauses]}].
+       multiple_aliases,redundant_boolean_clauses,
+       mixed_matching_clauses,unnecessary_building]}].
 
 
 init_per_suite(Config) ->
@@ -86,6 +88,7 @@ t_element(Config) when is_list(Config) ->
 	{_,_,_}=Tup ->
 	    ?line {'EXIT',{badarg,_}} = (catch element(4, Tup))
     end,
+    {'EXIT',{badarg,_}} = (catch element(1, tuple_size(Tuple))),
 
     ok.
 
@@ -104,6 +107,7 @@ setelement(Config) when is_list(Config) ->
     ?line error = setelement_crash_2({a,b,c,d,e,f}, <<42>>),
 
     {'EXIT',{badarg,_}} = (catch setelement(1, not_a_tuple, New)),
+    {'EXIT',{badarg,_}} = (catch setelement(3, {a,b}, New)),
 
     ok.
 
@@ -195,7 +199,10 @@ foo(A, B, C) ->
     A + B + C.
 
 bifs(Config) when is_list(Config) ->
-    ?line <<1,2,3,4>> = id(list_to_binary([1,2,3,4])),
+    <<1,2,3,4>> = id(list_to_binary([1,2,3,4])),
+    K = {a,key},
+    V = {a,value},
+    {ok,#{K:=V}} = id(list_to_tuple([ok,#{K=>V}])),
     ok.
 
 -define(CMP_SAME(A0, B), (fun(A) -> true = A == B, false = A /= B end)(id(A0))).
@@ -224,15 +231,17 @@ eq(Config) when is_list(Config) ->
 
 %% OTP-7117.
 nested_call_in_case(Config) when is_list(Config) ->
-    ?line PrivDir = ?config(priv_dir, Config),
-    ?line Dir = filename:dirname(code:which(?MODULE)),
-    ?line Core = filename:join(Dir, "nested_call_in_case"),
-    ?line Opts = [from_core,{outdir,PrivDir}|test_lib:opt_opts(?MODULE)],
-    ?line io:format("~p", [Opts]),
-    ?line {ok,Mod} = c:c(Core, Opts),
-    ?line yes = Mod:a([1,2,3], 2),
-    ?line no = Mod:a([1,2,3], 4),
-    ?line {'EXIT',_} = (catch Mod:a(not_a_list, 42)),
+    PrivDir = ?config(priv_dir, Config),
+    Dir = test_lib:get_data_dir(Config),
+    Core = filename:join(Dir, "nested_call_in_case"),
+    Opts = [from_core,{outdir,PrivDir}|test_lib:opt_opts(?MODULE)],
+    io:format("~p", [Opts]),
+    {ok,Mod} = c:c(Core, Opts),
+    yes = Mod:a([1,2,3], 2),
+    no = Mod:a([1,2,3], 4),
+    {'EXIT',_} = (catch Mod:a(not_a_list, 42)),
+    _ = code:delete(Mod),
+    _ = code:purge(Mod),
     ok.
 
 guard_try_catch(_Config) ->
@@ -252,6 +261,8 @@ do_guard_try_catch(K, V) ->
 	    false
     end.
 
+-record(cover_opt_guard_try, {list=[]}).
+
 coverage(Config) when is_list(Config) ->
     ?line {'EXIT',{{case_clause,{a,b,c}},_}} =
 	(catch cover_will_match_list_type({a,b,c})),
@@ -261,6 +272,9 @@ coverage(Config) when is_list(Config) ->
     ?line error = cover_will_match_lit_list(),
     {ok,[a]} = cover_is_safe_bool_expr(a),
 
+    ok = cover_opt_guard_try(#cover_opt_guard_try{list=[a]}),
+    error = cover_opt_guard_try(#cover_opt_guard_try{list=[]}),
+
     %% Make sure that we don't attempt to make literals
     %% out of pids. (Putting a pid into a #c_literal{}
     %% would crash later compiler passes.)
@@ -273,6 +287,12 @@ coverage(Config) when is_list(Config) ->
     error = bsm_an_inlined(<<1,2,3>>, Config),
     error = bsm_an_inlined([], Config),
 
+    %% Cover eval_rel_op/4.
+    Tuple = id({a,b}),
+    false = case Tuple of
+		{_,_} ->
+		    Tuple =:= true
+	    end,
     ok.
 
 cover_will_match_list_type(A) ->
@@ -314,12 +334,20 @@ cover_is_safe_bool_expr(X) ->
 	    false
     end.
 
+cover_opt_guard_try(Msg) ->
+    if
+	length(Msg#cover_opt_guard_try.list) =/= 1 ->
+	    error;
+	true ->
+	    ok
+    end.
+
 bsm_an_inlined(<<_:8>>, _) -> ok;
 bsm_an_inlined(_, _) -> error.
 
 unused_multiple_values_error(Config) when is_list(Config) ->
     PrivDir = ?config(priv_dir, Config),
-    Dir = filename:dirname(code:which(?MODULE)),
+    Dir = test_lib:get_data_dir(Config),
     Core = filename:join(Dir, "unused_multiple_values_error"),
     Opts = [no_copt,clint,return,from_core,{outdir,PrivDir}
 	   |test_lib:opt_opts(?MODULE)],
@@ -400,4 +428,29 @@ mixed_matching_clauses(Config) when is_list(Config) ->
       end,
   ok.
 
+unnecessary_building(Config) when is_list(Config) ->
+    Term1 = do_unnecessary_building_1(test_lib:id(a)),
+    [{a,a},{a,a}] = Term1,
+    7 = erts_debug:size(Term1),
+
+    %% The Input term should not be rebuilt (thus, it should
+    %% only be counted once in the size of the combined term).
+    Input = test_lib:id({a,b,c}),
+    Term2 = test_lib:id(do_unnecessary_building_2(Input)),
+    {b,[{a,b,c},none],x} = Term2,
+    4+4+4+2 = erts_debug:size([Term2|Input]),
+
+    ok.
+
+do_unnecessary_building_1(S) ->
+    %% The tuple must only be built once.
+    F0 = F1 = {S,S},
+    [F0,F1].
+
+do_unnecessary_building_2({a,_,_}=T) ->
+    %% The T term should not be rebuilt.
+    {b,
+     [_,_] = [T,none],
+     x}.
+
 id(I) -> I.
diff --git a/lib/compiler/test/nested_call_in_case.core b/lib/compiler/test/core_fold_SUITE_data/nested_call_in_case.core
index 5c6b6909bd..c46906b2ed 100644
--- a/lib/compiler/test/nested_call_in_case.core
+++ b/lib/compiler/test/core_fold_SUITE_data/nested_call_in_case.core
@@ -16,6 +16,3 @@ module 'nested_call_in_case' ['a'/2]
             -| ['compiler_generated'] )
         end
 end
-
-
-
diff --git a/lib/compiler/test/unused_multiple_values_error.core b/lib/compiler/test/core_fold_SUITE_data/unused_multiple_values_error.core
index e06587c936..e06587c936 100644
--- a/lib/compiler/test/unused_multiple_values_error.core
+++ b/lib/compiler/test/core_fold_SUITE_data/unused_multiple_values_error.core
diff --git a/lib/compiler/test/error_SUITE.erl b/lib/compiler/test/error_SUITE.erl
index bd877bb528..acd785cc5a 100644
--- a/lib/compiler/test/error_SUITE.erl
+++ b/lib/compiler/test/error_SUITE.erl
@@ -23,7 +23,7 @@
 -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, 
 	 init_per_group/2,end_per_group/2,
 	 head_mismatch_line/1,warnings_as_errors/1, bif_clashes/1,
-	 transforms/1,forbidden_maps/1,bad_utf8/1]).
+	 transforms/1,maps_warnings/1,bad_utf8/1]).
 
 %% Used by transforms/1 test case.
 -export([parse_transform/2]).
@@ -37,7 +37,7 @@ all() ->
 groups() -> 
     [{p,test_lib:parallel(),
       [head_mismatch_line,warnings_as_errors,bif_clashes,
-       transforms,forbidden_maps,bad_utf8]}].
+       transforms,maps_warnings,bad_utf8]}].
 
 init_per_suite(Config) ->
     Config.
@@ -235,23 +235,44 @@ transforms(Config) ->
              ">>,
     {error,[{none,compile,{parse_transform,?MODULE,{too_bad,_}}}],[]} =
 	run_test(Ts2, test_filename(Config), [], dont_write_beam),
+    Ts3 = <<"
+              -compile({parse_transform,",?MODULE_STRING,"}).
+             ">>,
+    {error,[{none,compile,{parse_transform,?MODULE,{undef,_}}}],[]} =
+        run_test(Ts3, test_filename(Config), [call_undef], dont_write_beam),
     ok.
 
-parse_transform(_, _) ->
-    error(too_bad).
+parse_transform(_, Opts) ->
+    case lists:member(call_undef, Opts) of
+        false -> error(too_bad);
+        true -> camembert:délicieux()
+    end.
 
 
-forbidden_maps(Config) when is_list(Config) ->
-    Ts1 = [{map_illegal_use_of_pattern,
+maps_warnings(Config) when is_list(Config) ->
+    Ts1 = [{map_ok_use_of_pattern,
 	   <<"
-              -export([t/0]).
+              -export([t/1]).
+              t(K) ->
+                 #{K := 1 = V} = id(#{<<\"hi all\">> => 1}),
+		 V.
+              id(I) -> I.
+             ">>,
+	    [return],
+	    []},
+	{map_illegal_use_of_pattern,
+	   <<"
+              -export([t/0,t/2]).
+	      t(K,#{ K := V }) -> V.
               t() ->
                  V = 32,
                  #{<<\"hi\",V,\"all\">> := 1} = id(#{<<\"hi all\">> => 1}).
               id(I) -> I.
              ">>,
 	    [return],
-	    {error,[{5,erl_lint,{illegal_map_key_variable,'V'}}], []}}],
+	    {error,[{3,erl_lint,{unbound_var,'K'}},
+		    {6,erl_lint,illegal_map_key}],[]}}
+    ],
     [] = run2(Config, Ts1),
     ok.
 
diff --git a/lib/compiler/test/float_SUITE.erl b/lib/compiler/test/float_SUITE.erl
index afc04fd440..fb8da37f4f 100644
--- a/lib/compiler/test/float_SUITE.erl
+++ b/lib/compiler/test/float_SUITE.erl
@@ -118,6 +118,7 @@ math_functions(Config) when is_list(Config) ->
     ?line 0.0 = math:sinh(0),
     ?line 1.0 = math:cosh(0),
     ?line 0.0 = math:tanh(0),
+    1.0 = math:log2(2),
     ?line 1.0 = math:log10(10),
     ?line -1.0 = math:cos(math:pi()),
     ?line 1.0 = math:exp(0),
@@ -136,6 +137,7 @@ math_functions(Config) when is_list(Config) ->
     ?line 0.0 = math:sinh(id(0)),
     ?line 1.0 = math:cosh(id(0)),
     ?line 0.0 = math:tanh(id(0)),
+    1.0 = math:log2(id(2)),
     ?line 1.0 = math:log10(id(10)),
     ?line 1.0 = math:exp(id(0)),
     ?line 0.0 = math:log(id(1)),
diff --git a/lib/compiler/test/guard_SUITE.erl b/lib/compiler/test/guard_SUITE.erl
index 34bfdeb1e5..512207898e 100644
--- a/lib/compiler/test/guard_SUITE.erl
+++ b/lib/compiler/test/guard_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2001-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -30,7 +30,7 @@
 	 old_guard_tests/1,
 	 build_in_guard/1,gbif/1,
 	 t_is_boolean/1,is_function_2/1,
-	 tricky/1,rel_ops/1,literal_type_tests/1,
+	 tricky/1,rel_ops/1,rel_op_combinations/1,literal_type_tests/1,
 	 basic_andalso_orelse/1,traverse_dcd/1,
 	 check_qlc_hrl/1,andalso_semi/1,t_tuple_size/1,binary_part/1,
 	 bad_constants/1,bad_guards/1]).
@@ -42,12 +42,13 @@ all() ->
     [{group,p}].
 
 groups() -> 
-    [{p,test_lib:parallel(),
+    [{p,[parallel],
       [misc,const_cond,basic_not,complex_not,nested_nots,
        semicolon,complex_semicolon,comma,or_guard,
        more_or_guards,complex_or_guards,and_guard,xor_guard,
        more_xor_guards,build_in_guard,old_guard_tests,gbif,
-       t_is_boolean,is_function_2,tricky,rel_ops,
+       t_is_boolean,is_function_2,tricky,
+       rel_ops,rel_op_combinations,
        literal_type_tests,basic_andalso_orelse,traverse_dcd,
        check_qlc_hrl,andalso_semi,t_tuple_size,binary_part,
        bad_constants,bad_guards]}].
@@ -330,7 +331,15 @@ complex_semicolon(Config) when is_list(Config) ->
     ?line ok = csemi6({a,b}, 0),
     ?line ok = csemi6({}, 3),
     ?line ok = csemi6({a,b,c}, 3),
-    
+
+    %% 7
+    error = csemi7(#{a=>1}, 1, 0),
+    error = csemi7(<<>>, 1, 0),
+    ok = csemi7(#{a=>1}, 3, 0),
+    ok = csemi7(#{a=>1}, 0, 3),
+    ok = csemi7(#{a=>1}, 3, 3),
+    ok = csemi7(#{a=>1, b=>3}, 0, 0),
+
     ok.
 
 csemi1(Type, Val) when is_list(Val), Type == float;
@@ -442,6 +451,9 @@ csemi5(_, _) -> error.
 csemi6(A, B) when hd([tuple_size(A)]) > 1; abs(B) > 2 -> ok;
 csemi6(_, _) -> error.
     
+csemi7(A, B, C) when A#{a:=B} > #{a=>1}; abs(C) > 2 -> ok;
+csemi7(_, _, _) -> error.
+
 comma(Config) when is_list(Config) ->
 
     %% ',' combinations of literal true/false.
@@ -1122,6 +1134,231 @@ rel_ops(Config) when is_list(Config) ->
 
 -undef(TestOp).
 
+rel_op_combinations(Config) when is_list(Config) ->
+    Digits0 = lists:seq(16#0030, 16#0039) ++
+	lists:seq(16#0660, 16#0669) ++
+	lists:seq(16#06F0, 16#06F9),
+    Digits = gb_sets:from_list(Digits0),
+    rel_op_combinations_1(16#0700, Digits),
+
+    BrokenRange0 = lists:seq(3, 5) ++
+	lists:seq(10, 12) ++ lists:seq(14, 20),
+    BrokenRange = gb_sets:from_list(BrokenRange0),
+    rel_op_combinations_2(30, BrokenRange),
+
+    Red0 = [{I,2*I} || I <- lists:seq(0, 50)] ++
+	[{I,5*I} || I <- lists:seq(51, 80)],
+    Red = gb_trees:from_orddict(Red0),
+    rel_op_combinations_3(100, Red).
+
+rel_op_combinations_1(0, _) ->
+    ok;
+rel_op_combinations_1(N, Digits) ->
+    Bool = gb_sets:is_member(N, Digits),
+    Bool = is_digit_1(N),
+    Bool = is_digit_2(N),
+    Bool = is_digit_3(N),
+    Bool = is_digit_4(N),
+    Bool = is_digit_5(N),
+    Bool = is_digit_6(N),
+    Bool = is_digit_7(N),
+    Bool = is_digit_8(N),
+    rel_op_combinations_1(N-1, Digits).
+
+is_digit_1(X) when 16#0660 =< X, X =< 16#0669 -> true;
+is_digit_1(X) when 16#0030 =< X, X =< 16#0039 -> true;
+is_digit_1(X) when 16#06F0 =< X, X =< 16#06F9 -> true;
+is_digit_1(_) -> false.
+
+is_digit_2(X) when (16#0030-1) < X, X =< 16#0039 -> true;
+is_digit_2(X) when (16#0660-1) < X, X =< 16#0669 -> true;
+is_digit_2(X) when (16#06F0-1) < X, X =< 16#06F9 -> true;
+is_digit_2(_) -> false.
+
+is_digit_3(X) when 16#0660 =< X, X < (16#0669+1) -> true;
+is_digit_3(X) when 16#0030 =< X, X < (16#0039+1) -> true;
+is_digit_3(X) when 16#06F0 =< X, X < (16#06F9+1) -> true;
+is_digit_3(_) -> false.
+
+is_digit_4(X) when (16#0660-1) < X, X < (16#0669+1) -> true;
+is_digit_4(X) when (16#0030-1) < X, X < (16#0039+1) -> true;
+is_digit_4(X) when (16#06F0-1) < X, X < (16#06F9+1) -> true;
+is_digit_4(_) -> false.
+
+is_digit_5(X) when X >= 16#0660, X =< 16#0669 -> true;
+is_digit_5(X) when X >= 16#0030, X =< 16#0039 -> true;
+is_digit_5(X) when X >= 16#06F0, X =< 16#06F9 -> true;
+is_digit_5(_) -> false.
+
+is_digit_6(X) when X > (16#0660-1), X =< 16#0669 -> true;
+is_digit_6(X) when X > (16#0030-1), X =< 16#0039 -> true;
+is_digit_6(X) when X > (16#06F0-1), X =< 16#06F9 -> true;
+is_digit_6(_) -> false.
+
+is_digit_7(X) when 16#0660 =< X, X =< 16#0669 -> true;
+is_digit_7(X) when 16#0030 =< X, X =< 16#003A, X =/= 16#003A -> true;
+is_digit_7(X) when 16#06F0 =< X, X =< 16#06F9 -> true;
+is_digit_7(_) -> false.
+
+is_digit_8(X) when X =< 16#0039, X > (16#0030-1) -> true;
+is_digit_8(X) when X =< 16#06F9, X > (16#06F0-1) -> true;
+is_digit_8(X) when X =< 16#0669, X > (16#0660-1) -> true;
+is_digit_8(16#0670) -> false;
+is_digit_8(_) -> false.
+
+rel_op_combinations_2(0, _) ->
+    ok;
+rel_op_combinations_2(N, Range) ->
+    Bool = gb_sets:is_member(N, Range),
+    Bool = broken_range_1(N),
+    Bool = broken_range_2(N),
+    Bool = broken_range_3(N),
+    Bool = broken_range_4(N),
+    Bool = broken_range_5(N),
+    Bool = broken_range_6(N),
+    Bool = broken_range_7(N),
+    Bool = broken_range_8(N),
+    Bool = broken_range_9(N),
+    Bool = broken_range_10(N),
+    Bool = broken_range_11(N),
+    Bool = broken_range_12(N),
+    Bool = broken_range_13(N),
+    rel_op_combinations_2(N-1, Range).
+
+broken_range_1(X) when X >= 10, X =< 20, X =/= 13 -> true;
+broken_range_1(X) when X >= 3, X =< 5 -> true;
+broken_range_1(_) -> false.
+
+broken_range_2(X) when X >= 10, X =< 12 -> true;
+broken_range_2(X) when X >= 14, X =< 20 -> true;
+broken_range_2(X) when X >= 3, X =< 5 -> true;
+broken_range_2(_) -> false.
+
+broken_range_3(X) when X >= 10, X =< 12 -> true;
+broken_range_3(X) when X >= 14, X < 21 -> true;
+broken_range_3(3) -> true;
+broken_range_3(4) -> true;
+broken_range_3(5) -> true;
+broken_range_3(_) -> false.
+
+broken_range_4(X) when X =< 5, X >= 3 -> true;
+broken_range_4(X) when X >= 10, X =< 20, X =/= 13 -> true;
+broken_range_4(X) when X =< 100 -> false;
+broken_range_4(_) -> false.
+
+broken_range_5(X) when X >= 10, X =< 20, X =/= 13 -> true;
+broken_range_5(X) when X > 2, X =< 5 -> true;
+broken_range_5(_) -> false.
+
+broken_range_6(X) when X >= 10, X =< 20, X =/= 13 -> true;
+broken_range_6(X) when X > 2, X < 6 -> true;
+broken_range_6(_) -> false.
+
+broken_range_7(X) when X > 2, X < 6 -> true;
+broken_range_7(X) when X >= 10, X =< 20, X =/= 13 -> true;
+broken_range_7(X) when X > 30 -> false;
+broken_range_7(_) -> false.
+
+broken_range_8(X) when X >= 10, X =< 20, X =/= 13 -> true;
+broken_range_8(X) when X =:= 3 -> true;
+broken_range_8(X) when X >= 3, X =< 5 -> true;
+broken_range_8(_) -> false.
+
+broken_range_9(X) when X >= 10, X =< 20, X =/= 13 -> true;
+broken_range_9(X) when X =:= 13 -> false;
+broken_range_9(X) when X >= 3, X =< 5 -> true;
+broken_range_9(_) -> false.
+
+broken_range_10(X) when X >= 3, X =< 5 -> true;
+broken_range_10(X) when X >= 10, X =< 20, X =/= 13 -> true;
+broken_range_10(X) when X =/= 13 -> false;
+broken_range_10(_) -> false.
+
+broken_range_11(X) when X >= 10, X =< 20, X =/= 13 -> true;
+broken_range_11(X) when is_tuple(X), X =:= 10 -> true;
+broken_range_11(X) when X >= 3, X =< 5 -> true;
+broken_range_11(_) -> false.
+
+broken_range_12(X) when X >= 3, X =< 5 -> true;
+broken_range_12(X) when X >= 10, X =< 20, X =/= 13 -> true;
+broken_range_12(X) when X < 30, X > 20 -> false;
+broken_range_12(_) -> false.
+
+broken_range_13(X) when X >= 10, X =< 20, 13 =/= X -> true;
+broken_range_13(X) when X >= 3, X =< 5 -> true;
+broken_range_13(_) -> false.
+
+rel_op_combinations_3(0, _) ->
+    ok;
+rel_op_combinations_3(N, Red) ->
+    Val = case gb_trees:lookup(N, Red) of
+	      none -> none;
+	      {value,V} -> V
+	  end,
+    Val = redundant_1(N),
+    Val = redundant_2(N),
+    Val = redundant_3(N),
+    Val = redundant_4(N),
+    Val = redundant_5(N),
+    Val = redundant_6(N),
+    Val = redundant_7(N),
+    Val = redundant_8(N),
+    Val = redundant_9(N),
+    Val = redundant_10(N),
+    Val = redundant_11(N),
+    rel_op_combinations_3(N-1, Red).
+
+redundant_1(X) when X >= 51, X =< 80 -> 5*X;
+redundant_1(X) when X < 51 -> 2*X;
+redundant_1(_) -> none.
+
+redundant_2(X) when X < 51 -> 2*X;
+redundant_2(X) when X >= 51, X =< 80 -> 5*X;
+redundant_2(_) -> none.
+
+redundant_3(X) when X < 51 -> 2*X;
+redundant_3(X) when X =< 80, X >= 51 -> 5*X;
+redundant_3(X) when X =/= 100 -> none;
+redundant_3(_) -> none.
+
+redundant_4(X) when X < 51 -> 2*X;
+redundant_4(X) when X =< 80, X > 50 -> 5*X;
+redundant_4(X) when X =/= 100 -> none;
+redundant_4(_) -> none.
+
+redundant_5(X) when X < 51 -> 2*X;
+redundant_5(X) when X > 50, X < 81 -> 5*X;
+redundant_5(X) when X =< 10 -> none;
+redundant_5(_) -> none.
+
+redundant_6(X) when X > 50, X =< 80 -> 5*X;
+redundant_6(X) when X < 51 -> 2*X;
+redundant_6(_) -> none.
+
+redundant_7(X) when is_integer(X), X >= 51, X =< 80 -> 5*X;
+redundant_7(X) when is_integer(X), X < 51 -> 2*X;
+redundant_7(_) -> none.
+
+redundant_8(X) when X >= 51, X =< 80 -> 5*X;
+redundant_8(X) when X < 51 -> 2*X;
+redundant_8(_) -> none.
+
+redundant_9(X) when X >= 51, X =< 80 -> 5*X;
+redundant_9(X) when X < 51 -> 2*X;
+redundant_9(90) -> none;
+redundant_9(X) when X =/= 90 -> none;
+redundant_9(_) -> none.
+
+redundant_10(X) when X >= 51, X =< 80 -> 5*X;
+redundant_10(X) when X < 51 -> 2*X;
+redundant_10(90) -> none;
+redundant_10(X) when X =:= 90 -> none;
+redundant_10(_) -> none.
+
+redundant_11(X) when X < 51 -> 2*X;
+redundant_11(X) when X =:= 10 -> 2*X;
+redundant_11(X) when X >= 51, X =< 80 -> 5*X;
+redundant_11(_) -> none.
 
 %% Test type tests on literal values. (From emulator test suites.)
 literal_type_tests(Config) when is_list(Config) ->
@@ -1136,10 +1373,11 @@ literal_type_tests_1(Config) ->
 			    [{is_function,L1,L2} || 
 				L1 <- literals(), L2 <- literals()]),
     ?line Mod = literal_test,
-    ?line Func = {function, 0, test, 0, [{clause,0,[],[],Tests}]},
-    ?line Form = [{attribute,0,module,Mod},
-		  {attribute,0,compile,export_all},
-		  Func, {eof,0}],
+    Anno = erl_anno:new(0),
+    Func = {function, Anno, test, 0, [{clause,Anno,[],[],Tests}]},
+    Form = [{attribute,Anno,module,Mod},
+            {attribute,Anno,compile,export_all},
+            Func, {eof,Anno}],
 
     %% Print generated code for inspection.
     ?line lists:foreach(fun (F) -> io:put_chars([erl_pp:form(F),"\n"]) end, Form),
@@ -1174,7 +1412,8 @@ test(T, L) ->
     {ok,Toks,_Line} = erl_scan:string(S),
     {ok,E} = erl_parse:parse_exprs(Toks),
     {value,Val,_Bs} = erl_eval:exprs(E, []),
-    {match,0,{atom,0,Val},hd(E)}.
+    Anno = erl_anno:new(0),
+    {match,Anno,{atom,Anno,Val},hd(E)}.
 
 test(T, L1, L2) ->
     S0 = io_lib:format("begin io:format(\"~~p~n\", [{~p,~p,~p}]), if ~w(~w, ~w) -> true; true -> false end end. ", [T,L1,L2,T,L1,L2]),
@@ -1182,7 +1421,8 @@ test(T, L1, L2) ->
     {ok,Toks,_Line} = erl_scan:string(S),
     {ok,E} = erl_parse:parse_exprs(Toks),
     {value,Val,_Bs} = erl_eval:exprs(E, []),
-    {match,0,{atom,0,Val},hd(E)}.
+    Anno = erl_anno:new(0),
+    {match,Anno,{atom,Anno,Val},hd(E)}.
 
 smoke_disasm(Config, Mod, Bin) ->
     Priv = ?config(priv_dir, Config),
@@ -1377,6 +1617,8 @@ t_tuple_size(Config) when is_list(Config) ->
     ?line {ok,Mod,Code} = compile:file(File, [from_asm,binary]),
     ?line code:load_binary(Mod, File, Code),
     ?line 14 = Mod:t({1,2,3,4}),
+    _ = code:delete(Mod),
+    _ = code:purge(Mod),
     
     ok.
 
@@ -1565,6 +1807,12 @@ bad_guards(Config) when is_list(Config) ->
     fc(catch bad_guards_2(#{a=>0,b=>0}, [x])),
     fc(catch bad_guards_2(not_a_map, [x])),
     fc(catch bad_guards_2(42, [x])),
+
+    fc(catch bad_guards_3(#{a=>0,b=>0}, [])),
+    fc(catch bad_guards_3(#{a=>0,b=>0}, [x])),
+    fc(catch bad_guards_3(not_a_map, [x])),
+    fc(catch bad_guards_3(42, [x])),
+
     ok.
 
 %% beam_bool used to produce GC BIF instructions whose
@@ -1576,6 +1824,12 @@ bad_guards_1(X, [_]) when {{X}}, -X ->
 bad_guards_2(M, [_]) when M#{a := 0, b => 0}, map_size(M) ->
     ok.
 
+%% beam_type used to produce an GC BIF instruction whose Live operand
+%% included uninitialized registers.
+
+bad_guards_3(M, [_]) when is_map(M) andalso M#{a := 0, b => 0}, length(M) ->
+    ok.
+
 %% Call this function to turn off constant propagation.
 id(I) -> I.
 
diff --git a/lib/compiler/test/lc_SUITE.erl b/lib/compiler/test/lc_SUITE.erl
index 398398a397..62bada1407 100644
--- a/lib/compiler/test/lc_SUITE.erl
+++ b/lib/compiler/test/lc_SUITE.erl
@@ -18,12 +18,12 @@
 %%
 -module(lc_SUITE).
 
--author('[email protected]').
 -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, 
 	 init_per_group/2,end_per_group/2,
 	 init_per_testcase/2,end_per_testcase/2,
 	 basic/1,deeply_nested/1,no_generator/1,
-	 empty_generator/1,no_export/1]).
+	 empty_generator/1,no_export/1,shadow/1,
+	 effect/1]).
 
 -include_lib("test_server/include/test_server.hrl").
 
@@ -31,10 +31,18 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() -> 
     test_lib:recompile(?MODULE),
-    [basic, deeply_nested, no_generator, empty_generator, no_export].
+    [{group,p}].
 
 groups() -> 
-    [].
+    [{p,test_lib:parallel(),
+      [basic,
+       deeply_nested,
+       no_generator,
+       empty_generator,
+       no_export,
+       shadow,
+       effect
+      ]}].
 
 init_per_suite(Config) ->
     Config.
@@ -59,34 +67,34 @@ end_per_testcase(Case, Config) when is_atom(Case), is_list(Config) ->
     ok.
 
 basic(Config) when is_list(Config) ->
-    ?line L0 = lists:seq(1, 10),
-    ?line L1 = my_map(fun(X) -> {x,X} end, L0),
-    ?line L1 = [{x,X} || X <- L0],
-    ?line L0 = my_map(fun({x,X}) -> X end, L1),
-    ?line [1,2,3,4,5] = [X || X <- L0, X < 6],
-    ?line [4,5,6] = [X || X <- L0, X > 3, X < 7],
-    ?line [] = [X || X <- L0, X > 32, X < 7],
-    ?line [1,3,5,7,9] = [X || X <- L0, odd(X)],
-    ?line [2,4,6,8,10] = [X || X <- L0, not odd(X)],
-    ?line [1,3,5,9] = [X || X <- L0, odd(X), X =/= 7],
-    ?line [2,4,8,10] = [X || X <- L0, not odd(X), X =/= 6],
+    L0 = lists:seq(1, 10),
+    L1 = my_map(fun(X) -> {x,X} end, L0),
+    L1 = [{x,X} || X <- L0],
+    L0 = my_map(fun({x,X}) -> X end, L1),
+    [1,2,3,4,5] = [X || X <- L0, X < 6],
+    [4,5,6] = [X || X <- L0, X > 3, X < 7],
+    [] = [X || X <- L0, X > 32, X < 7],
+    [1,3,5,7,9] = [X || X <- L0, odd(X)],
+    [2,4,6,8,10] = [X || X <- L0, not odd(X)],
+    [1,3,5,9] = [X || X <- L0, odd(X), X =/= 7],
+    [2,4,8,10] = [X || X <- L0, not odd(X), X =/= 6],
 
     %% Append is specially handled.
-    ?line [1,3,5,9,2,4,8,10] = [X || X <- L0, odd(X), X =/= 7] ++
+    [1,3,5,9,2,4,8,10] = [X || X <- L0, odd(X), X =/= 7] ++
 	[X || X <- L0, not odd(X), X =/= 6],
 
     %% Guards BIFs are evaluated in guard context. Weird, but true.
-    ?line [{a,b,true},{x,y,true,true}] = [X || X <- tuple_list(), element(3, X)],
+    [{a,b,true},{x,y,true,true}] = [X || X <- tuple_list(), element(3, X)],
 
     %% Filter expressions with andalso/orelse.
-    ?line "abc123" = alphanum("?abc123.;"),
+    "abc123" = alphanum("?abc123.;"),
 
     %% Error cases.
-    ?line [] = [{xx,X} || X <- L0, element(2, X) == no_no_no],
-    ?line {'EXIT',_} = (catch [X || X <- L1, list_to_atom(X) == dum]),
-    ?line [] = [X || X <- L1, X+1 < 2],
-    ?line {'EXIT',_} = (catch [X || X <- L1, odd(X)]),
-    ?line fc([x], catch [E || E <- id(x)]),
+    [] = [{xx,X} || X <- L0, element(2, X) == no_no_no],
+    {'EXIT',_} = (catch [X || X <- L1, list_to_atom(X) == dum]),
+    [] = [X || X <- L1, X+1 < 2],
+    {'EXIT',_} = (catch [X || X <- L1, odd(X)]),
+    fc([x], catch [E || E <- id(x)]),
     ok.
 
 tuple_list() ->
@@ -116,12 +124,12 @@ deeply_nested_1() ->
 	X16 <- [4],X17 <- [3],X18 <- [fun() -> X16+X17 end],X19 <- [2],X20 <- [1]].
 
 no_generator(Config) when is_list(Config) ->
-    ?line Seq = lists:seq(-10, 17),
-    ?line [no_gen_verify(no_gen(A, B), A, B) || A <- Seq, B <- Seq],
+    Seq = lists:seq(-10, 17),
+    [no_gen_verify(no_gen(A, B), A, B) || A <- Seq, B <- Seq],
 
     %% Literal expression, for coverage.
-    ?line [a] = [a || true],
-    ?line [a,b,c] = [a || true] ++ [b,c],
+    [a] = [a || true],
+    [a,b,c] = [a || true] ++ [b,c],
     ok.
 
 no_gen(A, B) ->    
@@ -174,13 +182,51 @@ no_gen_eval(Fun, Res) ->
 no_gen_one_more(A, B) -> A + 1 =:= B.
 
 empty_generator(Config) when is_list(Config) ->
-    ?line [] = [X || {X} <- [], (false or (X/0 > 3))],
+    [] = [X || {X} <- [], (false or (X/0 > 3))],
     ok.
 
 no_export(Config) when is_list(Config) ->
     [] = [ _X = a || false ] ++ [ _X = a || false ],
     ok.
 
+%% Test that variables in list comprehensions are
+%% correctly shadowed.
+
+shadow(Config) when is_list(Config) ->
+    Shadowed = nomatch,
+    _ = id(Shadowed),				%Eliminate warning.
+    L = [{Shadowed,Shadowed+1} || Shadowed <- lists:seq(7, 9)],
+    [{7,8},{8,9},{9,10}] = id(L),
+    [8,9] = id([Shadowed || {_,Shadowed} <- id(L),
+			    Shadowed < 10]),
+    ok.
+
+effect(Config) when is_list(Config) ->
+    [{42,{a,b,c}}] =
+	do_effect(fun(F, L) ->
+			  [F({V1,V2}) ||
+			      #{<<1:500>>:=V1,<<2:301>>:=V2} <- L],
+			  ok
+		  end, id([#{},x,#{<<1:500>>=>42,<<2:301>>=>{a,b,c}}])),
+
+    %% Will trigger the time-trap timeout if not tail-recursive.
+    case ?MODULE of
+	lc_SUITE ->
+	    _ = [{'EXIT',{badarg,_}} =
+		     (catch binary_to_atom(<<C/utf8>>, utf8)) ||
+		    C <- lists:seq(16#10000, 16#FFFFF)];
+	_ ->
+	    ok
+    end,
+
+    ok.
+
+do_effect(Lc, L) ->
+    put(?MODULE, []),
+    F = fun(V) -> put(?MODULE, [V|get(?MODULE)]) end,
+    ok = Lc(F, L),
+    lists:reverse(erase(?MODULE)).
+
 id(I) -> I.
     
 fc(Args, {'EXIT',{function_clause,[{?MODULE,_,Args,_}|_]}}) -> ok;
diff --git a/lib/compiler/test/map_SUITE.erl b/lib/compiler/test/map_SUITE.erl
index 403b7e8405..8768e47b65 100644
--- a/lib/compiler/test/map_SUITE.erl
+++ b/lib/compiler/test/map_SUITE.erl
@@ -21,16 +21,32 @@
     ]).
 
 -export([
-	t_build_and_match_literals/1,
-	t_update_literals/1,t_match_and_update_literals/1,
+	%% literals
+	t_build_and_match_literals/1, t_build_and_match_literals_large/1,
+	t_update_literals/1, t_update_literals_large/1,
+        t_match_and_update_literals/1, t_match_and_update_literals_large/1,
 	t_update_map_expressions/1,
-	t_update_assoc/1,t_update_exact/1,
-	t_guard_bifs/1, t_guard_sequence/1, t_guard_update/1,
-	t_guard_receive/1, t_guard_fun/1,
+	t_update_assoc/1, t_update_assoc_large/1,
+        t_update_exact/1, t_update_exact_large/1,
+	t_guard_bifs/1,
+        t_guard_sequence/1, t_guard_sequence_large/1,
+        t_guard_update/1, t_guard_update_large/1,
+	t_guard_receive/1, t_guard_receive_large/1,
+        t_guard_fun/1,
 	t_list_comprehension/1,
 	t_map_sort_literals/1,
 	t_map_size/1,
 	t_build_and_match_aliasing/1,
+	t_is_map/1,
+
+	%% variables
+	t_build_and_match_variables/1,
+	t_update_assoc_variables/1,t_update_exact_variables/1,
+	t_nested_pattern_expressions/1,
+	t_guard_update_variables/1,
+	t_guard_sequence_variables/1,
+	t_guard_sequence_mixed/1,
+	t_frequency_table/1,
 
 	%% warnings
 	t_warn_useless_build/1,
@@ -51,16 +67,34 @@
 
 suite() -> [].
 
-all() -> [
-	t_build_and_match_literals,
-	t_update_literals, t_match_and_update_literals,
+all() ->
+    test_lib:recompile(?MODULE),
+    [
+	%% literals
+	t_build_and_match_literals, t_build_and_match_literals_large,
+	t_update_literals, t_update_literals_large,
+        t_match_and_update_literals, t_match_and_update_literals_large,
 	t_update_map_expressions,
-	t_update_assoc,t_update_exact,
-	t_guard_bifs, t_guard_sequence, t_guard_update,
-	t_guard_receive,t_guard_fun, t_list_comprehension,
+	t_update_assoc, t_update_assoc_large,
+        t_update_exact, t_update_exact_large,
+	t_guard_bifs,
+        t_guard_sequence, t_guard_sequence_large,
+        t_guard_update, t_guard_update_large,
+	t_guard_receive, t_guard_receive_large,
+        t_guard_fun, t_list_comprehension,
 	t_map_sort_literals,
 	t_map_size,
 	t_build_and_match_aliasing,
+	t_is_map,
+
+	%% variables
+	t_build_and_match_variables,
+	t_update_assoc_variables,t_update_exact_variables,
+	t_nested_pattern_expressions,
+	t_guard_update_variables,
+	t_guard_sequence_variables,
+	t_guard_sequence_mixed,
+	t_frequency_table,
 
 	%% warnings
 	t_warn_useless_build,
@@ -73,6 +107,7 @@ all() -> [
 	t_build_and_match_nil,
 	t_build_and_match_structure,
 
+
 	%% errors in 17.0-rc1
 	t_update_values,
         t_expand_map_update,
@@ -119,6 +154,11 @@ t_build_and_match_literals(Config) when is_list(Config) ->
 
     %% nil key
     #{[]:=ok,1:=2} = id(#{[]=>ok,1=>2}),
+    #{1:=2,[]:=ok,1:=2} = id(#{[]=>ok,1=>2}),
+
+    %% pseudo literals
+    #{ -3 := yep } = id(#{ -3 => yep }),
+    #{ <<0:358>> := "three" } = id(#{<<0:358>> =>"three"}),
 
     %% error case
     {'EXIT',{{badmatch,_},_}} = (catch (#{x:=3,x:=2} = id(#{x=>3}))),
@@ -126,10 +166,465 @@ t_build_and_match_literals(Config) when is_list(Config) ->
     {'EXIT',{{badmatch,_},_}} = (catch (#{x:=3} = id({a,b,c}))),
     {'EXIT',{{badmatch,_},_}} = (catch (#{x:=3} = id(#{y=>3}))),
     {'EXIT',{{badmatch,_},_}} = (catch (#{x:=3} = id(#{x=>"three"}))),
-    {'EXIT',{badarg,_}} = (catch id(#{<<0:258>> =>"three"})),
     {'EXIT',{{badmatch,_},_}} = (catch (#{#{"a"=>42} := 3}=id(#{#{"a"=>3}=>42}))),
     ok.
 
+t_build_and_match_literals_large(Config) when is_list(Config) ->
+    % normal non-repeating
+    M0 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" }),
+
+    #{10:=a0,20:=b0,30:="c0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M0,
+    #{11:=a1,21:=b1,31:="c1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M0,
+    #{12:=a2,22:=b2,32:="c2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M0,
+    #{13:=a3,23:=b3,33:="c3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M0,
+    #{14:=a4,24:=b4,34:="c4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M0,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M0,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M0,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M0,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M0,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M0,
+
+    60 = map_size(M0),
+    60 = maps:size(M0),
+
+    % with repeating
+    M1 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               10=>na0,20=>nb0,30=>"nc0","40"=>"nd0",<<"50">>=>"ne0",{["00"]}=>"n10",
+               11=>na1,21=>nb1,31=>"nc1","41"=>"nd1",<<"51">>=>"ne1",{["01"]}=>"n11",
+               12=>na2,22=>nb2,32=>"nc2","42"=>"nd2",<<"52">>=>"ne2",{["02"]}=>"n12",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+
+               13=>na3,23=>nb3,33=>"nc3","43"=>"nd3",<<"53">>=>"ne3",{["03"]}=>"n13",
+               14=>na4,24=>nb4,34=>"nc4","44"=>"nd4",<<"54">>=>"ne4",{["04"]}=>"n14",
+
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" }),
+
+    #{10:=na0,20:=nb0,30:="nc0","40":="nd0",<<"50">>:="ne0",{["00"]}:="n10"} = M1,
+    #{11:=na1,21:=nb1,31:="nc1","41":="nd1",<<"51">>:="ne1",{["01"]}:="n11"} = M1,
+    #{12:=na2,22:=nb2,32:="nc2","42":="nd2",<<"52">>:="ne2",{["02"]}:="n12"} = M1,
+    #{13:=na3,23:=nb3,33:="nc3","43":="nd3",<<"53">>:="ne3",{["03"]}:="n13"} = M1,
+    #{14:=na4,24:=nb4,34:="nc4","44":="nd4",<<"54">>:="ne4",{["04"]}:="n14"} = M1,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M1,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M1,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M1,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M1,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M1,
+
+    60 = map_size(M1),
+    60 = maps:size(M1),
+
+    % with floats
+
+    M2 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19",
+
+               10.0=>fa0,20.0=>fb0,30.0=>"fc0",
+               11.0=>fa1,21.0=>fb1,31.0=>"fc1",
+               12.0=>fa2,22.0=>fb2,32.0=>"fc2",
+               13.0=>fa3,23.0=>fb3,33.0=>"fc3",
+               14.0=>fa4,24.0=>fb4,34.0=>"fc4",
+
+               15.0=>fa5,25.0=>fb5,35.0=>"fc5",
+               16.0=>fa6,26.0=>fb6,36.0=>"fc6",
+               17.0=>fa7,27.0=>fb7,37.0=>"fc7",
+               18.0=>fa8,28.0=>fb8,38.0=>"fc8",
+               19.0=>fa9,29.0=>fb9,39.0=>"fc9"}),
+
+    #{10:=a0,20:=b0,30:="c0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M2,
+    #{11:=a1,21:=b1,31:="c1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M2,
+    #{12:=a2,22:=b2,32:="c2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M2,
+    #{13:=a3,23:=b3,33:="c3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M2,
+    #{14:=a4,24:=b4,34:="c4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M2,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M2,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M2,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M2,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M2,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M2,
+
+    #{10.0:=fa0,20.0:=fb0,30.0:="fc0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M2,
+    #{11.0:=fa1,21.0:=fb1,31.0:="fc1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M2,
+    #{12.0:=fa2,22.0:=fb2,32.0:="fc2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M2,
+    #{13.0:=fa3,23.0:=fb3,33.0:="fc3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M2,
+    #{14.0:=fa4,24.0:=fb4,34.0:="fc4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M2,
+
+    #{15.0:=fa5,25.0:=fb5,35.0:="fc5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M2,
+    #{16.0:=fa6,26.0:=fb6,36.0:="fc6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M2,
+    #{17.0:=fa7,27.0:=fb7,37.0:="fc7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M2,
+    #{18.0:=fa8,28.0:=fb8,38.0:="fc8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M2,
+    #{19.0:=fa9,29.0:=fb9,39.0:="fc9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M2,
+
+    90 = map_size(M2),
+    90 = maps:size(M2),
+
+    % with bignums
+    M3 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19",
+
+               10.0=>fa0,20.0=>fb0,30.0=>"fc0",
+               11.0=>fa1,21.0=>fb1,31.0=>"fc1",
+               12.0=>fa2,22.0=>fb2,32.0=>"fc2",
+               13.0=>fa3,23.0=>fb3,33.0=>"fc3",
+               14.0=>fa4,24.0=>fb4,34.0=>"fc4",
+
+               15.0=>fa5,25.0=>fb5,35.0=>"fc5",
+               16.0=>fa6,26.0=>fb6,36.0=>"fc6",
+               17.0=>fa7,27.0=>fb7,37.0=>"fc7",
+               18.0=>fa8,28.0=>fb8,38.0=>"fc8",
+               19.0=>fa9,29.0=>fb9,39.0=>"fc9",
+
+               36893488147419103232=>big1,  73786976294838206464=>big2,
+               147573952589676412928=>big3, 18446744073709551616=>big4,
+               4294967296=>big5,            8589934592=>big6,
+               4294967295=>big7,            67108863=>big8
+             }),
+
+    #{10:=a0,20:=b0,30:="c0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M3,
+    #{11:=a1,21:=b1,31:="c1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M3,
+    #{12:=a2,22:=b2,32:="c2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M3,
+    #{13:=a3,23:=b3,33:="c3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M3,
+    #{14:=a4,24:=b4,34:="c4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M3,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M3,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M3,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M3,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M3,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M3,
+
+    #{10.0:=fa0,20.0:=fb0,30.0:="fc0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M3,
+    #{11.0:=fa1,21.0:=fb1,31.0:="fc1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M3,
+    #{12.0:=fa2,22.0:=fb2,32.0:="fc2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M3,
+    #{13.0:=fa3,23.0:=fb3,33.0:="fc3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M3,
+    #{14.0:=fa4,24.0:=fb4,34.0:="fc4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M3,
+
+    #{15.0:=fa5,25.0:=fb5,35.0:="fc5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M3,
+    #{16.0:=fa6,26.0:=fb6,36.0:="fc6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M3,
+    #{17.0:=fa7,27.0:=fb7,37.0:="fc7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M3,
+    #{18.0:=fa8,28.0:=fb8,38.0:="fc8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M3,
+    #{19.0:=fa9,29.0:=fb9,39.0:="fc9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M3,
+
+    #{36893488147419103232:=big1,67108863:=big8,"45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M3,
+    #{147573952589676412928:=big3,8589934592:=big6,"46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M3,
+    #{4294967296:=big5,18446744073709551616:=big4,"47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M3,
+    #{4294967295:=big7,73786976294838206464:=big2,"48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M3,
+
+    98 = map_size(M3),
+    98 = maps:size(M3),
+
+    %% with maps
+
+    M4 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19",
+
+               10.0=>fa0,20.0=>fb0,30.0=>"fc0",
+               11.0=>fa1,21.0=>fb1,31.0=>"fc1",
+               12.0=>fa2,22.0=>fb2,32.0=>"fc2",
+               13.0=>fa3,23.0=>fb3,33.0=>"fc3",
+               14.0=>fa4,24.0=>fb4,34.0=>"fc4",
+
+               15.0=>fa5,25.0=>fb5,35.0=>"fc5",
+               16.0=>fa6,26.0=>fb6,36.0=>"fc6",
+               17.0=>fa7,27.0=>fb7,37.0=>"fc7",
+               18.0=>fa8,28.0=>fb8,38.0=>"fc8",
+               19.0=>fa9,29.0=>fb9,39.0=>"fc9",
+
+               #{ one => small, map => key } => "small map key 1",
+               #{ second => small, map => key } => "small map key 2",
+               #{ third => small, map => key } => "small map key 3",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 2" }),
+
+    #{10:=a0,20:=b0,30:="c0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M4,
+    #{11:=a1,21:=b1,31:="c1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M4,
+    #{12:=a2,22:=b2,32:="c2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M4,
+    #{13:=a3,23:=b3,33:="c3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M4,
+    #{14:=a4,24:=b4,34:="c4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M4,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M4,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M4,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M4,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M4,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M4,
+
+    #{ #{ one => small, map => key }    := "small map key 1",
+       #{ second => small, map => key } := "small map key 2",
+       #{ third => small, map => key }  := "small map key 3" } = M4,
+
+    #{ #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+          11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+          12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+          13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+          14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+          15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+          16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+          17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+          18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+          19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } := "large map key 1",
+
+       #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+          11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+          12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+          13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+          14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+          15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+          k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+          17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+          18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+          19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } := "large map key 2" } = M4,
+
+
+    #{ 15:=V1,25:=b5,35:=V2,"45":="d5",<<"55">>:=V3,{["05"]}:="15",
+       #{ one => small, map => key }    := "small map key 1",
+       #{ second => small, map => key } := V4,
+       #{ third => small, map => key }  := "small map key 3",
+       #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+          11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+          12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+          13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+          14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+          15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+          16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+          17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+          18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+          19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } := V5 } = M4,
+
+    a5   = V1,
+    "c5" = V2,
+    "e5" = V3,
+    "small map key 2" = V4,
+    "large map key 1" = V5,
+
+    95 = map_size(M4),
+    95 = maps:size(M4),
+
+    % call for value
+
+    M5 = id(#{ 10=>id(a0),20=>b0,30=>id("c0"),"40"=>"d0",<<"50">>=>id("e0"),{["00"]}=>"10",
+               11=>id(a1),21=>b1,31=>id("c1"),"41"=>"d1",<<"51">>=>id("e1"),{["01"]}=>"11",
+               12=>id(a2),22=>b2,32=>id("c2"),"42"=>"d2",<<"52">>=>id("e2"),{["02"]}=>"12",
+               13=>id(a3),23=>b3,33=>id("c3"),"43"=>"d3",<<"53">>=>id("e3"),{["03"]}=>"13",
+               14=>id(a4),24=>b4,34=>id("c4"),"44"=>"d4",<<"54">>=>id("e4"),{["04"]}=>"14",
+
+               15=>id(a5),25=>b5,35=>id("c5"),"45"=>"d5",<<"55">>=>id("e5"),{["05"]}=>"15",
+               16=>id(a6),26=>b6,36=>id("c6"),"46"=>"d6",<<"56">>=>id("e6"),{["06"]}=>"16",
+               17=>id(a7),27=>b7,37=>id("c7"),"47"=>"d7",<<"57">>=>id("e7"),{["07"]}=>"17",
+               18=>id(a8),28=>b8,38=>id("c8"),"48"=>"d8",<<"58">>=>id("e8"),{["08"]}=>"18",
+               19=>id(a9),29=>b9,39=>id("c9"),"49"=>"d9",<<"59">>=>id("e9"),{["09"]}=>"19",
+
+               10.0=>fa0,20.0=>id(fb0),30.0=>id("fc0"),
+               11.0=>fa1,21.0=>id(fb1),31.0=>id("fc1"),
+               12.0=>fa2,22.0=>id(fb2),32.0=>id("fc2"),
+               13.0=>fa3,23.0=>id(fb3),33.0=>id("fc3"),
+               14.0=>fa4,24.0=>id(fb4),34.0=>id("fc4"),
+
+               15.0=>fa5,25.0=>id(fb5),35.0=>id("fc5"),
+               16.0=>fa6,26.0=>id(fb6),36.0=>id("fc6"),
+               17.0=>fa7,27.0=>id(fb7),37.0=>id("fc7"),
+               18.0=>fa8,28.0=>id(fb8),38.0=>id("fc8"),
+               19.0=>fa9,29.0=>id(fb9),39.0=>id("fc9"),
+
+               #{ one => small, map => key } => id("small map key 1"),
+               #{ second => small, map => key } => "small map key 2",
+               #{ third => small, map => key } => "small map key 3",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => id("large map key 2") }),
+
+    #{10:=a0,20:=b0,30:="c0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M5,
+    #{11:=a1,21:=b1,31:="c1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M5,
+    #{12:=a2,22:=b2,32:="c2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M5,
+    #{13:=a3,23:=b3,33:="c3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M5,
+    #{14:=a4,24:=b4,34:="c4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M5,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M5,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M5,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M5,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M5,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M5,
+
+    #{ #{ one => small, map => key }    := "small map key 1",
+       #{ second => small, map => key } := "small map key 2",
+       #{ third => small, map => key }  := "small map key 3" } = M5,
+
+    #{ #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+          11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+          12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+          13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+          14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+          15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+          16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+          17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+          18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+          19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } := "large map key 1",
+
+       #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+          11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+          12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+          13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+          14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+          15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+          k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+          17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+          18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+          19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } := "large map key 2" } = M5,
+
+    95 = map_size(M5),
+    95 = maps:size(M5),
+
+    %% remember
+
+    #{10:=a0,20:=b0,30:="c0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M0,
+    #{11:=a1,21:=b1,31:="c1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M0,
+    #{12:=a2,22:=b2,32:="c2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M0,
+    #{13:=a3,23:=b3,33:="c3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M0,
+    #{14:=a4,24:=b4,34:="c4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M0,
+
+    #{10:=na0,20:=nb0,30:="nc0","40":="nd0",<<"50">>:="ne0",{["00"]}:="n10"} = M1,
+    #{11:=na1,21:=nb1,31:="nc1","41":="nd1",<<"51">>:="ne1",{["01"]}:="n11"} = M1,
+    #{12:=na2,22:=nb2,32:="nc2","42":="nd2",<<"52">>:="ne2",{["02"]}:="n12"} = M1,
+    #{13:=na3,23:=nb3,33:="nc3","43":="nd3",<<"53">>:="ne3",{["03"]}:="n13"} = M1,
+    #{14:=na4,24:=nb4,34:="nc4","44":="nd4",<<"54">>:="ne4",{["04"]}:="n14"} = M1,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M1,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M1,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M1,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M1,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M1,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M2,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M2,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M2,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M2,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M2,
+
+    #{10.0:=fa0,20.0:=fb0,30.0:="fc0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M2,
+    #{11.0:=fa1,21.0:=fb1,31.0:="fc1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M2,
+    #{12.0:=fa2,22.0:=fb2,32.0:="fc2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M2,
+    #{13.0:=fa3,23.0:=fb3,33.0:="fc3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M2,
+    #{14.0:=fa4,24.0:=fb4,34.0:="fc4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M2,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M3,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M3,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M3,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M3,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M3,
+
+    #{10.0:=fa0,20.0:=fb0,30.0:="fc0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M3,
+    #{11.0:=fa1,21.0:=fb1,31.0:="fc1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M3,
+    #{12.0:=fa2,22.0:=fb2,32.0:="fc2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M3,
+    #{13.0:=fa3,23.0:=fb3,33.0:="fc3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M3,
+    #{14.0:=fa4,24.0:=fb4,34.0:="fc4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M3,
+
+    #{15.0:=fa5,25.0:=fb5,35.0:="fc5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M3,
+    #{16.0:=fa6,26.0:=fb6,36.0:="fc6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M3,
+    #{17.0:=fa7,27.0:=fb7,37.0:="fc7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M3,
+    #{18.0:=fa8,28.0:=fb8,38.0:="fc8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M3,
+    #{19.0:=fa9,29.0:=fb9,39.0:="fc9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M3,
+
+    #{36893488147419103232:=big1,67108863:=big8,"45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M3,
+    #{147573952589676412928:=big3,8589934592:=big6,"46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M3,
+    #{4294967296:=big5,18446744073709551616:=big4,"47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M3,
+    #{4294967295:=big7,73786976294838206464:=big2,"48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M3,
+
+    ok.
+
+
 t_build_and_match_aliasing(Config) when is_list(Config) ->
     M1 = id(#{a=>1,b=>2,c=>3,d=>4}),
     #{c:=C1=_=_=C2} = M1,
@@ -143,6 +638,19 @@ t_build_and_match_aliasing(Config) when is_list(Config) ->
     M2 = id(#{"a"=>1,"b"=>2,"c"=>3,"d"=>4}),
     #{"a":=A2,"a":=A2,"a":=A2,"b":=B2,"b":=B2,"b":=2} = M2,
     #{"a":=_,"a":=_,"a":=_,"b":=_,"b":=_,"b":=2} = M2,
+
+    #{a:=A1,a:=A1,a:=A1,b:=B1,b:=B1} = #{a:=A1,a:=A1,a:=A1,b:=B1,b:=B1,b:=2} = M1,
+    #{"a":=A3,"b":=B3} = #{"a":=A3,"a":=A3} = #{"b":=B3,"b":=2} = M2,
+
+    #{"a":=1,"b":=2,"c":=3,"d":=4} = #{"a":=A4,"b":=B4} = #{"a":=A4,"a":=A4} = #{"b":=B4,"d":=4} = M2,
+    #{"a":=A5,"b":=B5} = #{"a":=A5,"a":=A5} = #{"b":=B5,"d":=4} = #{"a":=1,"b":=2,"c":=3,"d":=4} = M2,
+    #{"a":=_,"b":=_} = #{"a":=_,"a":=_} = #{"b":=_,"d":=4} = #{"a":=1,"b":=2,"c":=3,"d":=4} = M2,
+
+    M3 = id(#{<<12:300>>=>1,<<13:300>>=>2}),
+    #{<<12:300>> := V1, <<13:300>> := V2} = #{<<13:300>> := V2, <<12:300>> := V1} = M3,
+    #{<<12:300>> := 1, <<13:300>> := 2} = #{<<13:300>> := _, <<12:300>> := _} = M3,
+    #{<<13:300>> := _, <<12:300>> := _} = #{<<12:300>> := 1, <<13:300>> := 2} = M3,
+
     ok.
 
 t_map_size(Config) when is_list(Config) ->
@@ -161,14 +669,25 @@ t_map_size(Config) when is_list(Config) ->
     false = map_is_size(M#{ "c" => 2}, 2),
 
     %% Error cases.
-    {'EXIT',{badarg,_}} = (catch map_size([])),
-    {'EXIT',{badarg,_}} = (catch map_size(<<1,2,3>>)),
-    {'EXIT',{badarg,_}} = (catch map_size(1)),
+    {'EXIT',{{badmap,[]},_}} = (catch map_size([])),
+    {'EXIT',{{badmap,<<1,2,3>>},_}} = (catch map_size(<<1,2,3>>)),
+    {'EXIT',{{badmap,1},_}} = (catch map_size(1)),
     ok.
 
 map_is_size(M,N) when map_size(M) =:= N -> true;
 map_is_size(_,_) -> false.
 
+t_is_map(Config) when is_list(Config) ->
+    true = is_map(#{}),
+    true = is_map(#{a=>1}),
+    false = is_map({a,b}),
+    false = is_map(x),
+    if is_map(#{}) -> ok end,
+    if is_map(#{b=>1}) -> ok end,
+    if not is_map([1,2,3]) -> ok end,
+    if not is_map(x) -> ok end,
+    ok.
+
 % test map updates without matching
 t_update_literals(Config) when is_list(Config) ->
     Map = #{x=>1,y=>2,z=>3,q=>4},
@@ -177,13 +696,75 @@ t_update_literals(Config) when is_list(Config) ->
 	]),
     ok.
 
+t_update_literals_large(Config) when is_list(Config) ->
+    Map = id(#{ 10=>id(a0),20=>b0,30=>id("c0"),"40"=>"d0",<<"50">>=>id("e0"),{["00"]}=>"10",
+                11=>id(a1),21=>b1,31=>id("c1"),"41"=>"d1",<<"51">>=>id("e1"),{["01"]}=>"11",
+                12=>id(a2),22=>b2,32=>id("c2"),"42"=>"d2",<<"52">>=>id("e2"),{["02"]}=>"12",
+                13=>id(a3),23=>b3,33=>id("c3"),"43"=>"d3",<<"53">>=>id("e3"),{["03"]}=>"13",
+                14=>id(a4),24=>b4,34=>id("c4"),"44"=>"d4",<<"54">>=>id("e4"),{["04"]}=>"14",
+
+                15=>id(a5),25=>b5,35=>id("c5"),"45"=>"d5",<<"55">>=>id("e5"),{["05"]}=>"15",
+                16=>id(a6),26=>b6,36=>id("c6"),"46"=>"d6",<<"56">>=>id("e6"),{["06"]}=>"16",
+                17=>id(a7),27=>b7,37=>id("c7"),"47"=>"d7",<<"57">>=>id("e7"),{["07"]}=>"17",
+                18=>id(a8),28=>b8,38=>id("c8"),"48"=>"d8",<<"58">>=>id("e8"),{["08"]}=>"18",
+                19=>id(a9),29=>b9,39=>id("c9"),"49"=>"d9",<<"59">>=>id("e9"),{["09"]}=>"19",
+
+                10.0=>fa0,20.0=>id(fb0),30.0=>id("fc0"),
+                11.0=>fa1,21.0=>id(fb1),31.0=>id("fc1"),
+                12.0=>fa2,22.0=>id(fb2),32.0=>id("fc2"),
+                13.0=>fa3,23.0=>id(fb3),33.0=>id("fc3"),
+                14.0=>fa4,24.0=>id(fb4),34.0=>id("fc4"),
+
+                15.0=>fa5,25.0=>id(fb5),35.0=>id("fc5"),
+                16.0=>fa6,26.0=>id(fb6),36.0=>id("fc6"),
+                17.0=>fa7,27.0=>id(fb7),37.0=>id("fc7"),
+                18.0=>fa8,28.0=>id(fb8),38.0=>id("fc8"),
+                19.0=>fa9,29.0=>id(fb9),39.0=>id("fc9"),
+
+                #{ one => small, map => key } => id("small map key 1"),
+                #{ second => small, map => key } => "small map key 2",
+                #{ third => small, map => key } => "small map key 3",
+
+                #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                   11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                   12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                   13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                   14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                   15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                   16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                   17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                   18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                   19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+                #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                   11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                   12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                   13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                   14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                   15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                   k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                   17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                   18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                   19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => id("large map key 2") }),
+
+    #{x:="d",q:="4"} = loop_update_literals_x_q(Map, [
+		{"a","1"},{"b","2"},{"c","3"},{"d","4"}
+	]),
+    ok.
+
+
+
 loop_update_literals_x_q(Map, []) -> Map;
 loop_update_literals_x_q(Map, [{X,Q}|Vs]) ->
     loop_update_literals_x_q(Map#{q=>Q,x=>X},Vs).
 
 % test map updates with matching
 t_match_and_update_literals(Config) when is_list(Config) ->
-    Map = #{x=>0,y=>"untouched",z=>"also untouched",q=>1},
+    Map = #{ x=>0,y=>"untouched",z=>"also untouched",q=>1,
+             #{ "one" => small, map => key } => "small map key 1" },
+ 
     #{x:=16,q:=21,y:="untouched",z:="also untouched"} = loop_match_and_update_literals_x_q(Map, [
 	    {1,2},{3,4},{5,6},{7,8}
 	]),
@@ -197,8 +778,77 @@ t_match_and_update_literals(Config) when is_list(Config) ->
     #{ 4 := another_number, int := 3 } = M2#{ 4 => another_number },
     ok.
 
+t_match_and_update_literals_large(Config) when is_list(Config) ->
+    Map = id(#{ 10=>id(a0),20=>b0,30=>id("c0"),"40"=>"d0",<<"50">>=>id("e0"),{["00"]}=>"10",
+                11=>id(a1),21=>b1,31=>id("c1"),"41"=>"d1",<<"51">>=>id("e1"),{["01"]}=>"11",
+                12=>id(a2),22=>b2,32=>id("c2"),"42"=>"d2",<<"52">>=>id("e2"),{["02"]}=>"12",
+                13=>id(a3),23=>b3,33=>id("c3"),"43"=>"d3",<<"53">>=>id("e3"),{["03"]}=>"13",
+                14=>id(a4),24=>b4,34=>id("c4"),"44"=>"d4",<<"54">>=>id("e4"),{["04"]}=>"14",
+
+                15=>id(a5),25=>b5,35=>id("c5"),"45"=>"d5",<<"55">>=>id("e5"),{["05"]}=>"15",
+                16=>id(a6),26=>b6,36=>id("c6"),"46"=>"d6",<<"56">>=>id("e6"),{["06"]}=>"16",
+                17=>id(a7),27=>b7,37=>id("c7"),"47"=>"d7",<<"57">>=>id("e7"),{["07"]}=>"17",
+                18=>id(a8),28=>b8,38=>id("c8"),"48"=>"d8",<<"58">>=>id("e8"),{["08"]}=>"18",
+                19=>id(a9),29=>b9,39=>id("c9"),"49"=>"d9",<<"59">>=>id("e9"),{["09"]}=>"19",
+
+                10.0=>fa0,20.0=>id(fb0),30.0=>id("fc0"),
+                11.0=>fa1,21.0=>id(fb1),31.0=>id("fc1"),
+                12.0=>fa2,22.0=>id(fb2),32.0=>id("fc2"),
+                13.0=>fa3,23.0=>id(fb3),33.0=>id("fc3"),
+                14.0=>fa4,24.0=>id(fb4),34.0=>id("fc4"),
+
+                15.0=>fa5,25.0=>id(fb5),35.0=>id("fc5"),
+                16.0=>fa6,26.0=>id(fb6),36.0=>id("fc6"),
+                17.0=>fa7,27.0=>id(fb7),37.0=>id("fc7"),
+                18.0=>fa8,28.0=>id(fb8),38.0=>id("fc8"),
+                19.0=>fa9,29.0=>id(fb9),39.0=>id("fc9"),
+
+                x=>0,y=>"untouched",z=>"also untouched",q=>1,
+
+                #{ "one" => small, map => key } => id("small map key 1"),
+                #{ second => small, map => key } => "small map key 2",
+                #{ third => small, map => key } => "small map key 3",
+
+                #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                   11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                   12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                   13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                   14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                   15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                   16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                   17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                   18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                   19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+                #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                   11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                   12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                   13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                   14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                   15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                   k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                   17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                   18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                   19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => id("large map key 2") }),
+
+    #{x:=16,q:=21,y:="untouched",z:="also untouched"} = loop_match_and_update_literals_x_q(Map, [
+	    {1,2},{3,4},{5,6},{7,8}
+	]),
+    M0 = id(Map#{ "hi" => "hello", int => 3, <<"key">> => <<"value">>,
+                  4 => number, 18446744073709551629 => wat}),
+    M1 = id(Map#{}),
+    M2 = M1#{ "hi" => "hello", int => 3, <<"key">> => <<"value">>,
+              4 => number, 18446744073709551629 => wat},
+    M0 = M2,
+
+    #{ 4 := another_number, int := 3 } = M2#{ 4 => another_number },
+    ok.
+
 loop_match_and_update_literals_x_q(Map, []) -> Map;
-loop_match_and_update_literals_x_q(#{q:=Q0,x:=X0} = Map, [{X,Q}|Vs]) ->
+loop_match_and_update_literals_x_q(#{ q:=Q0, x:=X0,
+                                     #{ "one" => small, map => key } := "small map key 1" } = Map, [{X,Q}|Vs]) ->
     loop_match_and_update_literals_x_q(Map#{q=>Q0+Q,x=>X0+X},Vs).
 
 
@@ -224,9 +874,9 @@ t_update_map_expressions(Config) when is_list(Config) ->
 
     #{ "a" := b } = F(),
 
-    %% Error cases, FIXME: should be 'badmap'?
-    {'EXIT',{badarg,_}} = (catch (id(<<>>))#{ a := 42, b => 2 }),
-    {'EXIT',{badarg,_}} = (catch (id([]))#{ a := 42, b => 2 }),
+    %% Error cases.
+    {'EXIT',{{badmap,<<>>},_}} = (catch (id(<<>>))#{ a := 42, b => 2 }),
+    {'EXIT',{{badmap,[]},_}} = (catch (id([]))#{ a := 42, b => 2 }),
     ok.
 
 
@@ -241,13 +891,92 @@ t_update_assoc(Config) when is_list(Config) ->
     #{1:=a,2:=b,3.0:=new,4:=d,5:=e} = M2,
     M2 = M0#{3.0:=wrong,3.0=>new},
 
+    % Can't handle directly yet
+    Bin = <<0:257>>,
+    #{ Bin := val } = id(M0#{<<0:257>> => val}), %% binary limitation
+
     %% Errors cases.
     BadMap = id(badmap),
-    {'EXIT',{badarg,_}} = (catch BadMap#{nonexisting=>val}),
-    {'EXIT',{badarg,_}} = (catch <<>>#{nonexisting=>val}),
-    {'EXIT',{badarg,_}} = (catch M0#{<<0:257>> => val}), %% limitation
+    {'EXIT',{{badmap,BadMap},_}} = (catch BadMap#{nonexisting=>val}),
+    {'EXIT',{{badmap,<<>>},_}} = (catch <<>>#{nonexisting=>val}),
+
+    %% Evaluation order.
+    {'EXIT',{blurf,_}} =
+	(catch BadMap#{whatever=>id(error(blurf))}),
+    {'EXIT',{blurf,_}} =
+	(catch BadMap#{id(error(blurf))=>whatever}),
+    ok.
+
+t_update_assoc_large(Config) when is_list(Config) ->
+    M0 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19",
+
+               10.0=>fa0,20.0=>fb0,30.0=>"fc0",
+               11.0=>fa1,21.0=>fb1,31.0=>"fc1",
+               12.0=>fa2,22.0=>fb2,32.0=>"fc2",
+               13.0=>fa3,23.0=>fb3,33.0=>"fc3",
+               14.0=>fa4,24.0=>fb4,34.0=>"fc4",
+
+               15.0=>fa5,25.0=>fb5,35.0=>"fc5",
+               16.0=>fa6,26.0=>fb6,36.0=>"fc6",
+               17.0=>fa7,27.0=>fb7,37.0=>"fc7",
+               18.0=>fa8,28.0=>fb8,38.0=>"fc8",
+               19.0=>fa9,29.0=>fb9,39.0=>"fc9",
+
+               #{ one => small, map => key } => "small map key 1",
+               #{ second => small, map => key } => "small map key 2",
+               #{ third => small, map => key } => "small map key 3",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 2" }),
+
+
+    M1 = M0#{1=>42,2=>100,4=>[a,b,c]},
+    #{1:=42,2:=100,10.0:=fa0,4:=[a,b,c],25:=b5} = M1,
+    #{ 10:=43, 24:=b4, 15:=a5, 35:="c5", 2.0:=100, 13.0:=fa3, 4.0:=[a,b,c]} =
+        M0#{1.0=>float,10:=43,2.0=>wrong,2.0=>100,4.0=>[a,b,c]},
+
+    M2 = M0#{13.0=>new},
+    #{10:=a0,20:=b0,13.0:=new,"40":="d0",<<"50">>:="e0"} = M2,
+    M2 = M0#{13.0:=wrong,13.0=>new},
+
+    %% Errors cases.
+    BadMap = id({no,map}),
+    {'EXIT',{{badmap,BadMap},_}} = (catch BadMap#{nonexisting=>M0}),
     ok.
 
+
+
 t_update_exact(Config) when is_list(Config) ->
     M0 = id(#{1=>a,2=>b,3.0=>c,4=>d,5=>e}),
 
@@ -268,21 +997,121 @@ t_update_exact(Config) when is_list(Config) ->
 	1.0 => new_val4 },
 
     %% Errors cases.
-    {'EXIT',{badarg,_}} = (catch ((id(nil))#{ a := b })),
-    {'EXIT',{badarg,_}} = (catch M0#{nonexisting:=val}),
-    {'EXIT',{badarg,_}} = (catch M0#{1.0:=v,1.0=>v2}),
-    {'EXIT',{badarg,_}} = (catch M0#{42.0:=v,42:=v2}),
-    {'EXIT',{badarg,_}} = (catch M0#{42=>v1,42.0:=v2,42:=v3}),
-    {'EXIT',{badarg,_}} = (catch <<>>#{nonexisting:=val}),
-    {'EXIT',{badarg,_}} = (catch M0#{<<0:257>> := val}), %% limitation
+    {'EXIT',{{badmap,nil},_}} = (catch ((id(nil))#{ a := b })),
+    {'EXIT',{{badkey,nonexisting},_}} = (catch M0#{nonexisting:=val}),
+    {'EXIT',{{badkey,1.0},_}} = (catch M0#{1.0:=v,1.0=>v2}),
+    {'EXIT',{{badkey,42},_}} = (catch M0#{42.0:=v,42:=v2}),
+    {'EXIT',{{badkey,42.0},_}} = (catch M0#{42=>v1,42.0:=v2,42:=v3}),
+    {'EXIT',{{badmap,<<>>},_}} = (catch <<>>#{nonexisting:=val}),
+    {'EXIT',{{badkey,<<0:257>>},_}} =
+	(catch M0#{<<0:257>> := val}),		%limitation
+
+    %% A workaround for a bug allowed an empty map to be updated.
+    {'EXIT',{{badkey,a},_}} = (catch (id(#{}))#{a:=1}),
+    {'EXIT',{{badkey,a},_}} = (catch #{}#{a:=1}),
+    Empty = #{},
+    {'EXIT',{{badkey,a},_}} = (catch Empty#{a:=1}),
+
+    %% Evaluation order.
+    BadMap = id([no,map]),
+    {'EXIT',{blurf,_}} =
+	(catch BadMap#{whatever:=id(error(blurf))}),
+    {'EXIT',{blurf,_}} =
+	(catch BadMap#{id(error(blurf)):=whatever}),
+    {'EXIT',{{badmap,BadMap},_}} =
+	(catch BadMap#{id(nonexisting):=whatever}),
+    ok.
+
+t_update_exact_large(Config) when is_list(Config) ->
+    M0 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19",
+
+               10.0=>fa0,20.0=>fb0,30.0=>"fc0",
+               11.0=>fa1,21.0=>fb1,31.0=>"fc1",
+               12.0=>fa2,22.0=>fb2,32.0=>"fc2",
+               13.0=>fa3,23.0=>fb3,33.0=>"fc3",
+               14.0=>fa4,24.0=>fb4,34.0=>"fc4",
+
+               15.0=>fa5,25.0=>fb5,35.0=>"fc5",
+               16.0=>fa6,26.0=>fb6,36.0=>"fc6",
+               17.0=>fa7,27.0=>fb7,37.0=>"fc7",
+               18.0=>fa8,28.0=>fb8,38.0=>"fc8",
+               19.0=>fa9,29.0=>fb9,39.0=>"fc9",
+
+               #{ one => small, map => key } => "small map key 1",
+               #{ second => small, map => key } => "small map key 2",
+               #{ third => small, map => key } => "small map key 3",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 2" }),
+
+
+    M1 = M0#{10:=42,<<"55">>:=100,10.0:=[a,b,c]},
+    #{ 10:=42,<<"55">>:=100,{["05"]}:="15",10.0:=[a,b,c],
+       #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+          11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+          12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+          13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+          14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+          15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+          16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+          17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+          18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+          19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } := "large map key 1" } = M1,
+
+    M1 = M0#{10:=wrong,10=>42,<<"55">>=>wrong,<<"55">>:=100,10.0:=[a,b,c]},
+
+    M2 = M0#{13.0:=new},
+    #{10:=a0,20:=b0,13.0:=new} = M2,
+    M2 = M0#{13.0=>wrong,13.0:=new},
+
+    %% Errors cases.
+    {'EXIT',{{badkey,nonexisting},_}} = (catch M0#{nonexisting:=val}),
+    {'EXIT',{{badkey,1.0},_}} = (catch M0#{1.0:=v,1.0=>v2}),
+    {'EXIT',{{badkey,42},_}} = (catch M0#{42.0:=v,42:=v2}),
+    {'EXIT',{{badkey,42.0},_}} = (catch M0#{42=>v1,42.0:=v2,42:=v3}),
+
     ok.
 
 t_update_values(Config) when is_list(Config) ->
     V0 = id(1337),
     M0 = #{ a => 1, val => V0},
     V1 = get_val(M0),
-    M1 = M0#{ val := [V0,V1], "wazzup" => 42 },
+    M1 = id(M0#{ val := [V0,V1], "wazzup" => 42 }),
     [1337, {some_val, 1337}] = get_val(M1),
+    M2 = id(M1#{ <<42:333>> => 1337 }),
+    {bin_key,1337} = get_val(M2),
 
     N = 110,
     List = [{[I,1,2,3,I],{1,2,3,"wat",I}}|| I <- lists:seq(1,N)],
@@ -308,6 +1137,7 @@ t_export(Config) when is_list(Config) ->
 
 check_val(#{val1:=V1, val2:=V2},V1,V2) -> ok.
 
+get_val(#{ <<42:333>> := V }) -> {bin_key, V};
 get_val(#{ "wazzup" := _, val := V}) -> V;
 get_val(#{ val := V }) -> {some_val, V}.
 
@@ -358,6 +1188,75 @@ t_guard_sequence(Config) when is_list(Config) ->
 	{'EXIT',{function_clause,_}} = (catch map_guard_sequence_2(#{b=>5})),
 	ok.
 
+t_guard_sequence_large(Config) when is_list(Config) ->
+    M0 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00",03]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01",03]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02",03]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03",03]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04",03]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05",03]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06",03]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07",03]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08",03]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09",03]}=>"19",
+
+               10.0=>fa0,20.0=>fb0,30.0=>"fc0",
+               11.0=>fa1,21.0=>fb1,31.0=>"fc1",
+               12.0=>fa2,22.0=>fb2,32.0=>"fc2",
+               13.0=>fa3,23.0=>fb3,33.0=>"fc3",
+               14.0=>fa4,24.0=>fb4,34.0=>"fc4",
+
+               15.0=>fa5,25.0=>fb5,35.0=>"fc5",
+               16.0=>fa6,26.0=>fb6,36.0=>"fc6",
+               17.0=>fa7,27.0=>fb7,37.0=>"fc7",
+               18.0=>fa8,28.0=>fb8,38.0=>"fc8",
+               19.0=>fa9,29.0=>fb9,39.0=>"fc9",
+
+               #{ one => small, map => key } => "small map key 1",
+               #{ second => small, map => key } => "small map key 2",
+               #{ third => small, map => key } => "small map key 3",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 2" }),
+
+	{1, "a"} = map_guard_sequence_1(M0#{seq=>1,val=>id("a")}),
+	{2, "b"} = map_guard_sequence_1(M0#{seq=>2,val=>id("b")}),
+	{3, "c"} = map_guard_sequence_1(M0#{seq=>3,val=>id("c")}),
+	{4, "d"} = map_guard_sequence_1(M0#{seq=>4,val=>id("d")}),
+	{5, "e"} = map_guard_sequence_1(M0#{seq=>5,val=>id("e")}),
+
+	{1,M1}       = map_guard_sequence_2(M1 = id(M0#{a=>3})),
+	{2,M2}       = map_guard_sequence_2(M2 = id(M0#{a=>4, b=>4})),
+	{3,gg,M3}    = map_guard_sequence_2(M3 = id(M0#{a=>gg, b=>4})),
+	{4,sc,sc,M4} = map_guard_sequence_2(M4 = id(M0#{a=>sc, b=>3, c=>sc2})),
+	{5,kk,kk,M5} = map_guard_sequence_2(M5 = id(M0#{a=>kk, b=>other, c=>sc2})),
+
+	{'EXIT',{function_clause,_}} = (catch map_guard_sequence_1(M0#{seq=>6,val=>id("e")})),
+	{'EXIT',{function_clause,_}} = (catch map_guard_sequence_2(M0#{b=>5})),
+        ok.
+
 map_guard_sequence_1(#{seq:=1=Seq, val:=Val}) -> {Seq,Val};
 map_guard_sequence_1(#{seq:=2=Seq, val:=Val}) -> {Seq,Val};
 map_guard_sequence_1(#{seq:=3=Seq, val:=Val}) -> {Seq,Val};
@@ -378,6 +1277,65 @@ t_guard_update(Config) when is_list(Config) ->
     third  = map_guard_update(#{x=>old,y=>old}, #{x=>third,y=>old}),
     ok.
 
+t_guard_update_large(Config) when is_list(Config) ->
+    M0 = id(#{ 70=>a0,80=>b0,90=>"c0","40"=>"d0",<<"50">>=>"e0",{["00",03]}=>"10",
+               71=>a1,81=>b1,91=>"c1","41"=>"d1",<<"51">>=>"e1",{["01",03]}=>"11",
+               72=>a2,82=>b2,92=>"c2","42"=>"d2",<<"52">>=>"e2",{["02",03]}=>"12",
+               73=>a3,83=>b3,93=>"c3","43"=>"d3",<<"53">>=>"e3",{["03",03]}=>"13",
+               74=>a4,84=>b4,94=>"c4","44"=>"d4",<<"54">>=>"e4",{["04",03]}=>"14",
+
+               75=>a5,85=>b5,95=>"c5","45"=>"d5",<<"55">>=>"e5",{["05",03]}=>"15",
+               76=>a6,86=>b6,96=>"c6","46"=>"d6",<<"56">>=>"e6",{["06",03]}=>"16",
+               77=>a7,87=>b7,97=>"c7","47"=>"d7",<<"57">>=>"e7",{["07",03]}=>"17",
+               78=>a8,88=>b8,98=>"c8","48"=>"d8",<<"58">>=>"e8",{["08",03]}=>"18",
+               79=>a9,89=>b9,99=>"c9","49"=>"d9",<<"59">>=>"e9",{["09",03]}=>"19",
+
+               70.0=>fa0,80.0=>fb0,90.0=>"fc0",
+               71.0=>fa1,81.0=>fb1,91.0=>"fc1",
+               72.0=>fa2,82.0=>fb2,92.0=>"fc2",
+               73.0=>fa3,83.0=>fb3,93.0=>"fc3",
+               74.0=>fa4,84.0=>fb4,94.0=>"fc4",
+
+               75.0=>fa5,85.0=>fb5,95.0=>"fc5",
+               76.0=>fa6,86.0=>fb6,96.0=>"fc6",
+               77.0=>fa7,87.0=>fb7,97.0=>"fc7",
+               78.0=>fa8,88.0=>fb8,98.0=>"fc8",
+               79.0=>fa9,89.0=>fb9,99.0=>"fc9",
+
+               #{ one => small, map => key } => "small map key 1",
+               #{ second => small, map => key } => "small map key 2",
+               #{ third => small, map => key } => "small map key 3",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 2" }),
+
+
+    error  = map_guard_update(M0#{},M0#{}),
+    first  = map_guard_update(M0#{},M0#{x=>first}),
+    second = map_guard_update(M0#{y=>old}, M0#{x=>second,y=>old}),
+    ok.
+
 map_guard_update(M1, M2) when M1#{x=>first}  =:= M2 -> first;
 map_guard_update(M1, M2) when M1#{x=>second} =:= M2 -> second;
 map_guard_update(M1, M2) when M1#{x:=third}  =:= M2 -> third;
@@ -408,6 +1366,43 @@ t_guard_receive(Config) when is_list(Config) ->
     done = call(Pid, done),
     ok.
 
+-define(t_guard_receive_large_procs, 1500).
+
+t_guard_receive_large(Config) when is_list(Config) ->
+    M = lists:foldl(fun(_,#{procs := Ps } = M) ->
+                            M#{ procs := Ps#{ spawn_link(fun() -> grecv_loop() end) => 0 }}
+                    end, #{procs => #{}, done => 0}, lists:seq(1,?t_guard_receive_large_procs)),
+    lists:foreach(fun(Pid) ->
+                          Pid ! {self(), hello}
+                  end, maps:keys(maps:get(procs,M))),
+    ok = guard_receive_large_loop(M),
+    ok.
+
+guard_receive_large_loop(#{done := ?t_guard_receive_large_procs}) ->
+    ok;
+guard_receive_large_loop(M) ->
+    receive
+        #{pid := Pid, msg := hello} ->
+            case M of
+                #{done := Count, procs := #{Pid := 150}} ->
+                    Pid ! {self(), done},
+                    guard_receive_large_loop(M#{done := Count + 1});
+                #{procs := #{Pid := Count} = Ps} ->
+                    Pid ! {self(), hello},
+                    guard_receive_large_loop(M#{procs := Ps#{Pid := Count + 1}})
+            end
+    end.
+
+grecv_loop() ->
+    receive
+        {_, done} ->
+            ok;
+        {Pid, hello} ->
+            Pid ! #{pid=>self(), msg=>hello},
+            grecv_loop()
+    end.
+
+
 call(Pid, M) ->
     Pid ! {self(), M}, receive {Pid, Res} -> Res end.
 
@@ -437,7 +1432,15 @@ guard_receive_loop() ->
 
 
 t_list_comprehension(Config) when is_list(Config) ->
-    [#{k:=1},#{k:=2},#{k:=3}] = [#{k=>I} || I <- [1,2,3]],
+    [#{k:=1},#{k:=2},#{k:=3}] = id([#{k=>I} || I <- [1,2,3]]),
+    Ls = id([#{<<2:301>> => I, "wat" => I + 1} || I <- [1,2,3]]),
+    [#{<<2:301>>:=1,"wat":=2},#{<<2:301>>:=2,"wat":=3},#{<<2:301>>:=3,"wat":=4}] = Ls,
+    [{1,2},{2,3},{3,4}] = id([{I2,I1} || #{"wat" := I1, <<2:301>> := I2} <- Ls]),
+
+    Ks = lists:seq($a,$z),
+    Ms = [#{[K1,K2]=>{K1,K2}} || K1 <- Ks, K2 <- Ks],
+    [#{"aa" := {$a,$a}},#{"ab":={$a,$b}}|_] = Ms,
+    [#{"zz" := {$z,$z}},#{"zy":={$z,$y}}|_] = lists:reverse(Ms),
     ok.
 
 t_guard_fun(Config) when is_list(Config) ->
@@ -487,7 +1490,7 @@ t_map_sort_literals(Config) when is_list(Config) ->
     true  = id(#{ c => 1, b => 1, a => 1 }) < id(#{ b => 1, c => 1, d => 1}),
     true  = id(#{ "a" => 1 }) < id(#{ <<"a">> => 1}),
     false = id(#{ <<"a">> => 1 }) < id(#{ "a" => 1}),
-    false = id(#{ 1 => 1 }) < id(#{ 1.0 => 1}),
+    true = id(#{ 1 => 1 }) < id(#{ 1.0 => 1}),
     false = id(#{ 1.0 => 1 }) < id(#{ 1 => 1}),
 
     %% value order
@@ -585,6 +1588,7 @@ t_build_and_match_nil(Config) when is_list(Config) ->
 	    "treat" => V2, 
 	    [] => V1 }),
     #{ [] := V3, [] := V3 } = id(#{ [] => V1, [] => V3 }),
+    #{ <<1>> := V3, [] := V1 } = id(#{ [] => V1, <<1>> => V3 }),
     ok.
 
 t_build_and_match_structure(Config) when is_list(Config) ->
@@ -601,5 +1605,326 @@ t_build_and_match_structure(Config) when is_list(Config) ->
     end,
     ok.
 
+%% simple build and match variables
+t_build_and_match_variables(Config) when is_list(Config) ->
+    K0 = id(#{}),
+    K1 = id(1),       V1 = id(a),
+    K2 = id(2),       V2 = id(b),
+    K3 = id(3),       V3 = id("c"),
+    K4 = id("4"),     V4 = id("d"),
+    K5 = id(<<"5">>), V5 = id(<<"e">>),
+    K6 = id({"6",7}), V6 = id("f"),
+    K7 = id(#{ "a" => 3 }),
+    #{K1:=V1} = id(#{K1=>V1}),
+    #{K1:=V1,K2:=V2} = id(#{K1=>V1,K2=>V2}),
+    #{K1:=V1,K2:=V2,K3:=V3} = id(#{K1=>V1,K2=>V2,K3=>V3}),
+    #{K1:=V1,K2:=V2,K3:=V3,K4:=V4} = id(#{K1=>V1,K2=>V2,K3=>V3,K4=>V4}),
+    #{K1:=V1,K2:=V2,K3:=V3,K4:=V4,K5:=V5} = id(#{K1=>V1,K2=>V2,K3=>V3,K4=>V4,K5=>V5}),
+    #{K1:=V1,K2:=V2,K3:=V3,K4:=V4,K5:=V5,K6:=V6} = id(#{K1=>V1,K2=>V2,K3=>V3,K4=>V4,K5=>V5,K6=>V6}),
+
+    #{K5:=X,K5:=X=3,K4:=4} = id(#{K5=>3,K4=>4}),
+    #{K5:=X,<<"5">>:=X=3,K4:=4} = id(#{K5=>3,K4=>4}),
+    #{K5:=X,<<"5">>:=X=3,K4:=4} = id(#{<<"5">>=>3,K4=>4}),
+
+    #{ K4:=#{ K3:=#{K1:=V1, K2:=V2}}, K5:=V5} =
+	id(#{ K5=>V5, K4=>#{ K3=>#{K2 => V2, K1 => V1}}}),
+    #{ K4 := #{ K5 := Res }, K6 := Res} = id(#{K4=>#{K5 => 99}, K6 => 99}),
+
+    %% has keys
+    #{a :=_,b :=_,K1:=_,K2:=_,K3:=V3,K4:=ResKey,K4:=ResKey,"4":=ResKey,"4":="ok"} =
+	id(#{ a=>1, b=>1, K1=>V1, K2=>V2, K3=>V3, K4=>"nope", "4"=>"ok" }),
+
+    %% function
+    ok = match_function_map_neg_keys(#{ -1 => a, -2 => b, -3 => c }),
+
+    %% map key
+    #{ K0 := 42 } = id(#{ K0 => 42 }),
+    #{ K7 := 42 } = id(#{ K7 => 42 }),
+
+    %% nil key
+    KNIL = id([]),
+    #{KNIL:=ok,1:=2} = id(#{KNIL=>ok,1=>2}),
+
+    Bin = <<0:258>>,
+    #{ Bin := "three" } = id(#{<<0:258>> =>"three"}),
+
+    %% error case
+    {'EXIT',{{badmatch,_},_}} = (catch (#{K5:=3,x:=2} = id(#{K5=>3}))),
+    {'EXIT',{{badmatch,_},_}} = (catch (#{K5:=2} = id(#{K5=>3}))),
+    {'EXIT',{{badmatch,_},_}} = (catch (#{K5:=3} = id({a,b,c}))),
+    {'EXIT',{{badmatch,_},_}} = (catch (#{K5:=3} = id(#{K6=>3}))),
+    {'EXIT',{{badmatch,_},_}} = (catch (#{K5:=3} = id(K7))),
+    {'EXIT',{{badmatch,_},_}} = (catch (#{K7:=3} = id(#{K7=>42}))),
+    ok.
+
+
+match_function_map_neg_keys(#{ -1 := a, -2 := b, -3 := c }) -> ok.
+
+t_update_assoc_variables(Config) when is_list(Config) ->
+    K1 = id(1),
+    K2 = id(2),
+    K3 = id(3.0),
+    K4 = id(4),
+    K5 = id(5),
+    K6 = id(2.0),
+
+    M0 = #{K1=>a,K2=>b,K3=>c,K4=>d,K5=>e},
+
+    M1 = M0#{K1=>42,K2=>100,K4=>[a,b,c]},
+    #{1:=42,2:=100,3.0:=c,4:=[a,b,c],5:=e} = M1,
+    #{1:=42,2:=b,4:=d,5:=e,2.0:=100,K3:=c,4.0:=[a,b,c]} = M0#{1.0=>float,1:=42,2.0=>wrong,K6=>100,4.0=>[a,b,c]},
+
+    M2 = M0#{K3=>new},
+    #{1:=a,2:=b,K3:=new,4:=d,5:=e} = M2,
+    M2 = M0#{3.0:=wrong,K3=>new},
+
+    #{ <<0:258>> := val } = id(M0#{<<0:258>> => val}), %% binary limitation
+
+    %% Errors cases.
+    BadMap = id(badmap),
+    {'EXIT',{{badmap,BadMap},_}} = (catch BadMap#{nonexisting=>val}),
+    {'EXIT',{{badmap,<<>>},_}} = (catch <<>>#{nonexisting=>val}),
+    ok.
+
+t_update_exact_variables(Config) when is_list(Config) ->
+    K1 = id(1),
+    K2 = id(2),
+    K3 = id(3.0),
+    K4 = id(4),
+
+    M0 = id(#{1=>a,2=>b,3.0=>c,4=>d,5=>e}),
+
+    M1 = M0#{K1:=42,K2:=100,K4:=[a,b,c]},
+    #{1:=42,2:=100,3.0:=c,K4:=[a,b,c],5:=e} = M1,
+    M1 = M0#{K1:=wrong,1:=also_wrong,K1=>42,2=>wrong,K2:=100,4:=[a,b,c]},
+
+    M2 = M0#{K3:=new},
+    #{1:=a,K2:=b,3.0:=new,K4:=d,5:=e} = M2,
+    M2 = M0#{3.0=>wrong,K3:=new},
+    true = M2 =/= M0#{3=>right,3.0:=new},
+    #{ 3 := right, 3.0 := new } = M0#{3=>right,K3:=new},
+
+    M3 = id(#{ 1 => val}),
+    #{1 := update2,1.0 := new_val4} = M3#{
+	1.0 => new_val1, K1 := update, K1=> update3,
+	K1 := update2, 1.0 := new_val2, 1.0 => new_val3,
+	1.0 => new_val4 },
+
+    #{ "wat" := 3, 2 := a } = id(#{ "wat" => 1, K2 => 2 }#{ K2 := a, "wat" := 3 }),
+
+    %% Errors cases.
+    {'EXIT',{{badmap,nil},_}} = (catch ((id(nil))#{ a := b })),
+    {'EXIT',{{badkey,nonexisting},_}} = (catch M0#{nonexisting:=val}),
+    {'EXIT',{{badkey,1.0},_}} = (catch M0#{1.0:=v,1.0=>v2}),
+    {'EXIT',{{badkey,42},_}} = (catch M0#{42.0:=v,42:=v2}),
+    {'EXIT',{{badkey,42.0},_}} = (catch M0#{42=>v1,42.0:=v2,42:=v3}),
+    {'EXIT',{{badmap,<<>>},_}} = (catch <<>>#{nonexisting:=val}),
+    {'EXIT',{{badkey,<<0:257>>},_}} =
+	(catch M0#{<<0:257>> := val}),		%limitation
+    ok.
+
+t_nested_pattern_expressions(Config) when is_list(Config) ->
+    K1 = id("hello"),
+    %K2 = id({ok}),
+    [_,_,#{ <<"hi">> := wat, K1 := 42 }|_] = id([k,k,#{<<"hi">> => wat, K1 => 42}]),
+    [_,_,#{ -1 := wat, K1 := 42 }|_] = id([k,k,#{-1 => wat, K1 => 42}]),
+    [_,_,{#{ -1 := #{ {-3,<<0:300>>} := V1 }, K1 := 42 },3}|_] = id([k,k,{#{-1 => #{{-3,<<0:300>>}=>"hi"}, K1 => 42},3}]),
+    "hi" = V1,
+    %[k,#{ {-1,K1,[]} := {wat,K1}, K2 := 42 }|_] = id([k,#{{-1,K1,[]} => {wat,K1}, K2 => 42}]),
+    %[k,#{ [-1,K2,[]] := {wat,K1}, K1 := 42 }|_] = id([k,#{[-1,K2,[]] => {wat,K1}, K1 => 42}]),
+
+    M0 = id(#{ <<33:333>> => 1, <<332:333>> => ok, a => ok, wat => yep, watzor => ok }),
+    F0 = map_nested_pattern_funs(M0),
+    F1 = F0(wat),
+    F2 = F1(watzor),
+    {yep,ok} = F2(M0),
+    ok.
+
+map_nested_pattern_funs(M) ->
+    K0 = id(a),
+    fun(K1) ->
+	    case M of
+		#{ K0 := ok, K1 := yep, <<33:333>> := 1 } ->
+		    fun(K2) ->
+			    case M of
+				#{ K2 := ok, K1 := yep, <<33:333>> := 1 } ->
+				    fun
+					(#{ <<332:333>> := ok, K1 := V1, K2 := V2 }) ->
+					    {V1,V2}
+				    end
+			    end
+		    end
+	    end
+    end.
+
+t_guard_update_variables(Config) when is_list(Config) ->
+    error  = map_guard_update_variables(n,#{},#{}),
+    first  = map_guard_update_variables(x,#{}, #{x=>first}),
+    second = map_guard_update_variables(x,#{y=>old}, #{x=>second,y=>old}),
+    third  = map_guard_update_variables(x,#{x=>old,y=>old}, #{x=>third,y=>old}),
+    fourth = map_guard_update_variables(x,#{x=>old,y=>old}, #{x=>4,y=>new}),
+    ok.
+
+map_guard_update_variables(K,M1,M2) when M1#{K=>first}    =:= M2 -> first;
+map_guard_update_variables(K,M1,M2) when M1#{K=>second}   =:= M2 -> second;
+map_guard_update_variables(K,M1,M2) when M1#{K:=third}    =:= M2 -> third;
+map_guard_update_variables(K,M1,M2) when M1#{K:=4,y=>new} =:= M2 -> fourth;
+map_guard_update_variables(_,_,_) -> error.
+
+t_guard_sequence_variables(Config) when is_list(Config) ->
+    {1,"a"} = map_guard_sequence_var_1(a,#{seq=>1,a=>id("a"),b=>no}),
+    {2,"b"} = map_guard_sequence_var_1(b,#{seq=>2,b=>id("b"),a=>no}),
+    {3,"c"} = map_guard_sequence_var_1(a,#{seq=>3,a=>id("c"),b=>no}),
+    {4,"d"} = map_guard_sequence_var_1(b,#{seq=>4,b=>id("d"),a=>no}),
+    {4,4}   = map_guard_sequence_var_1(seq,#{seq=>4}),
+    {4,4,y} = map_guard_sequence_var_1(seq,#{seq=>4,b=>id("d"),a=>y}),
+    {5,"d"} = map_guard_sequence_var_1(b,#{seq=>5,b=>id("d"),a=>y}),
+
+    %% error case
+    {'EXIT',{{case_clause,_},_}} = (catch map_guard_sequence_var_1("a",#{seq=>4,val=>id("e")})),
+    ok.
+
+
+map_guard_sequence_var_1(K,M) ->
+    case M of
+	#{seq:=1=Seq, K:=Val} -> {Seq,Val};
+	#{seq:=2=Seq, K:=Val} -> {Seq,Val};
+	#{seq:=3=Seq, K:=Val} -> {Seq,Val};
+	#{K:=4=Seq,   K:=Val1,a:=Val2} -> {Seq,Val1,Val2};
+	#{seq:=4=Seq, K:=Val} -> {Seq,Val};
+	#{K:=4=Seq,   K:=Val} -> {Seq,Val};
+	#{seq:=5=Seq, K:=Val} -> {Seq,Val}
+    end.
+
+
+t_guard_sequence_mixed(Config) when is_list(Config) ->
+    M0 = id(#{ a=>1, b=>1, c=>1, d=>1, e=>1, f=>1, g=>1, h=>1 }),
+    M1 = id(M0#{ d := 3 }),
+    1 = map_guard_sequence_mixed(a,d,M1),
+    M2 = id(M1#{ b := 2, d := 4, h := 2 }),
+    2 = map_guard_sequence_mixed(a,d,M2),
+    M3 = id(M2#{ b := 3, e := 5, g := 3 }),
+    3 = map_guard_sequence_mixed(a,e,M3),
+    M4 = id(M3#{ c := 4, e := 6, h := 1 }),
+    4 = map_guard_sequence_mixed(a,e,M4),
+    M5 = id(M4#{ c := 5, f := 7, g := 2 }),
+    5 = map_guard_sequence_mixed(a,f,M5),
+    M6 = id(M5#{ c := 6, f := 8, h := 3 }),
+    6 = map_guard_sequence_mixed(a,f,M6),
+
+    %% error case
+    {'EXIT',{{case_clause,_},_}} = (catch map_guard_sequence_mixed(a,b,M0)),
+    ok.
+
+map_guard_sequence_mixed(K1,K2,M) ->
+    case M of
+	#{ K1 := 1, b := 1, K2 := 3, g := 1} -> 1;
+	#{ K1 := 1, b := 2, K2 := 4, h := 2} -> 2;
+	#{ K1 := 1, b := 3, K2 := 5, g := 3} -> 3;
+	#{ K1 := 1, c := 4, K2 := 6, h := 1} -> 4;
+	#{ K1 := 1, c := 5, K2 := 7, g := 2} -> 5;
+	#{ K1 := 1, c := 6, K2 := 8, h := 3} -> 6
+    end.
+
+
+
+t_frequency_table(Config) when is_list(Config) ->
+    random:seed({13,1337,54}),  % pseudo random
+    N = 100000,
+    Ts = rand_terms(N),
+    #{ n:=N, tf := Tf } = frequency_table(Ts,#{ n=>0, tf => #{}}),
+    ok = check_frequency(Ts,Tf),
+    ok.
+
+
+frequency_table([T|Ts], M) ->
+    case M of
+	#{ n := N, tf := #{ T := C } = F } ->
+	    frequency_table(Ts,M#{ n := N + 1, tf := F#{ T := C + 1 }});
+	#{ n := N, tf := F } ->
+	    frequency_table(Ts,M#{ n := N + 1, tf := F#{ T => 1 }})
+    end;
+frequency_table([], M) -> M.
+
+
+check_frequency(Ts,Tf) ->
+    check_frequency(Ts,Tf,dict:new()).
+
+check_frequency([T|Ts],Tf,D) ->
+    case dict:find(T,D) of
+	error  -> check_frequency(Ts,Tf,dict:store(T,1,D));
+	{ok,C} -> check_frequency(Ts,Tf,dict:store(T,C+1,D))
+    end;
+check_frequency([],Tf,D) ->
+    validate_frequency(dict:to_list(D),Tf).
+
+validate_frequency([{T,C}|Fs],Tf) ->
+    case Tf of
+	#{ T := C } -> validate_frequency(Fs,Tf);
+	_ -> error
+    end;
+validate_frequency([], _) -> ok.
+
+
+%% aux
+
+rand_terms(0) -> [];
+rand_terms(N) -> [rand_term()|rand_terms(N-1)].
+
+rand_term() ->
+    case random:uniform(6) of
+	1 -> rand_binary();
+	2 -> rand_number();
+	3 -> rand_atom();
+	4 -> rand_tuple();
+	5 -> rand_list();
+	6 -> rand_map()
+    end.
+
+rand_binary() ->
+    case random:uniform(3) of
+	1 -> <<>>;
+	2 -> <<"hi">>;
+	3 -> <<"message text larger than 64 bytes. yep, message text larger than 64 bytes.">>
+    end.
+
+rand_number() ->
+    case random:uniform(3) of
+	1 -> random:uniform(5);
+	2 -> float(random:uniform(5));
+	3 -> 1 bsl (63 + random:uniform(3))
+    end.
+
+rand_atom() ->
+    case random:uniform(3) of
+	1 -> hi;
+	2 -> some_atom;
+	3 -> some_other_atom
+    end.
+
+
+rand_tuple() ->
+    case random:uniform(3) of
+	1 -> {ok, rand_term()}; % careful
+	2 -> {1, 2, 3};
+	3 -> {<<"yep">>, 1337}
+    end.
+
+rand_list() ->
+    case random:uniform(3) of
+	1 -> "hi";
+	2 -> [1,rand_term()]; % careful
+	3 -> [improper|list]
+    end.
+
+rand_map() ->
+    case random:uniform(3) of
+	1 -> #{ hi => 3 };
+	2 -> #{ wat => rand_term(), other => 3 };  % careful
+	3 -> #{ hi => 42, other => 42, yet_anoter => 1337 }
+    end.
+
+
+
 %% Use this function to avoid compile-time evaluation of an expression.
 id(I) -> I.
diff --git a/lib/compiler/test/match_SUITE.erl b/lib/compiler/test/match_SUITE.erl
index 1e778dca24..9aec0b3d4e 100644
--- a/lib/compiler/test/match_SUITE.erl
+++ b/lib/compiler/test/match_SUITE.erl
@@ -22,7 +22,8 @@
 	 init_per_group/2,end_per_group/2,
 	 pmatch/1,mixed/1,aliases/1,match_in_call/1,
 	 untuplify/1,shortcut_boolean/1,letify_guard/1,
-	 selectify/1,underscore/1,match_map/1,coverage/1]).
+	 selectify/1,underscore/1,match_map/1,map_vars_used/1,
+      coverage/1]).
 	 
 -include_lib("test_server/include/test_server.hrl").
 
@@ -33,10 +34,10 @@ all() ->
     [{group,p}].
 
 groups() -> 
-    [{p,test_lib:parallel(),
+    [{p,[parallel],
       [pmatch,mixed,aliases,match_in_call,untuplify,
        shortcut_boolean,letify_guard,selectify,
-       underscore,match_map,coverage]}].
+       underscore,match_map,map_vars_used,coverage]}].
 
 
 init_per_suite(Config) ->
@@ -140,6 +141,13 @@ aliases(Config) when is_list(Config) ->
     ?line {a,b} = list_alias2([a,b]),
     ?line {a,b} = list_alias3([a,b]),
 
+    %% Non-matching aliases.
+    none = mixed_aliases(<<42>>),
+    none = mixed_aliases([b]),
+    none = mixed_aliases([d]),
+    none = mixed_aliases({a,42}),
+    none = mixed_aliases(42),
+
     ok.
 
 str_alias(V) ->
@@ -243,6 +251,12 @@ list_alias2([X,Y]=[a,b]) ->
 list_alias3([X,b]=[a,Y]) ->
     {X,Y}.
 
+mixed_aliases(<<X:8>> = x) -> {a,X};
+mixed_aliases([b] = <<X:8>>) -> {b,X};
+mixed_aliases(<<X:8>> = {a,X}) -> {c,X};
+mixed_aliases([X] = <<X:8>>) -> {d,X};
+mixed_aliases(_) -> none.
+
 %% OTP-7018.
 
 match_in_call(Config) when is_list(Config) ->
@@ -419,6 +433,18 @@ do_match_map_2(Map) ->
 	    Tuple
     end.
 
+map_vars_used(Config) when is_list(Config) ->
+    {some,value} = do_map_vars_used(a, b, #{{a,b}=>42,v=>{some,value}}),
+    ok.
+
+do_map_vars_used(X, Y, Map) ->
+    case {X,Y} of
+	T ->
+	    %% core_lib:is_var_used/2 would not consider T used.
+	    #{T:=42,v:=Val} = Map,
+	    Val
+    end.
+
 coverage(Config) when is_list(Config) ->
     %% Cover beam_dead.
     ok = coverage_1(x, a),
diff --git a/lib/compiler/test/misc_SUITE.erl b/lib/compiler/test/misc_SUITE.erl
index 44c7161530..f3b92aad5b 100644
--- a/lib/compiler/test/misc_SUITE.erl
+++ b/lib/compiler/test/misc_SUITE.erl
@@ -60,7 +60,7 @@ all() ->
     [{group,p}].
 
 groups() -> 
-    [{p,[],%%test_lib:parallel(),
+    [{p,[],
       [tobias,empty_string,md5,silly_coverage,
        confused_literals,integer_encoding,override_bif]}].
 
@@ -225,14 +225,15 @@ silly_coverage(Config) when is_list(Config) ->
 		     {label,2}|non_proper_list]}],99},
     ?line expect_error(fun() -> beam_bool:module(BoolInput, []) end),
 
-    %% beam_dead
+    %% beam_dead. This is tricky. Our function must look OK to
+    %% beam_utils:clean_labels/1, but must crash beam_dead.
     DeadInput = {?MODULE,[{foo,0}],[],
 		  [{function,foo,0,2,
 		    [{label,1},
 		     {func_info,{atom,?MODULE},{atom,foo},0},
 		     {label,2},
-		     {jump,bad}]}],99},
-    ?line expect_error(fun() -> beam_block:module(DeadInput, []) end),
+		     {test,is_eq_exact,{f,1},[bad,operands]}]}],99},
+    expect_error(fun() -> beam_dead:module(DeadInput, []) end),
 
     %% beam_clean
     CleanInput = {?MODULE,[{foo,0}],[],
@@ -279,6 +280,14 @@ silly_coverage(Config) when is_list(Config) ->
 		     {label,2}|non_proper_list]}],99},
     expect_error(fun() -> beam_z:module(BeamZInput, []) end),
 
+    %% beam_validator.
+    BeamValInput = {?MODULE,[{foo,0}],[],
+		    [{function,foo,0,2,
+		      [{label,1},
+		       {func_info,{atom,?MODULE},{atom,foo},0},
+		       {label,2}|non_proper_list]}],99},
+    expect_error(fun() -> beam_validator:module(BeamValInput, []) end),
+
     ok.
 
 expect_error(Fun) ->
@@ -329,8 +338,16 @@ integer_encoding_1(Config) ->
 
     ?line do_integer_encoding(-(id(1) bsl 10000), Src, Data),
     ?line do_integer_encoding(id(1) bsl 10000, Src, Data),
-    ?line do_integer_encoding(2048, 0, Src, Data),
-
+    do_integer_encoding(1024, 0, Src, Data),
+    _ = [begin
+	     B = 1 bsl I,
+	     do_integer_encoding(-B-1, Src, Data),
+	     do_integer_encoding(-B, Src, Data),
+	     do_integer_encoding(-B+1, Src, Data),
+	     do_integer_encoding(B-1, Src, Data),
+	     do_integer_encoding(B, Src, Data),
+	     do_integer_encoding(B+1, Src, Data)
+	 end || I <- lists:seq(1, 128)],
     io:put_chars(Src, "Last].\n\n"),
     ?line ok = file:close(Src),
     io:put_chars(Data, "0].\n\n"),
@@ -363,11 +380,9 @@ do_integer_encoding(N, I0, Src, Data) ->
 
 do_integer_encoding(I, Src, Data) ->
     Str = integer_to_list(I),
-    io:put_chars(Src, Str),
-    io:put_chars(Src, ", \n"),
-    io:put_chars(Data, Str),
-    io:put_chars(Data, ", \n").
-    
+    io:put_chars(Src, [Str,",\n"]),
+    io:put_chars(Data, [Str,",\n"]).
+
     
 id(I) -> I.
     
diff --git a/lib/compiler/test/receive_SUITE.erl b/lib/compiler/test/receive_SUITE.erl
index 00a6e900d4..fb82bf6101 100644
--- a/lib/compiler/test/receive_SUITE.erl
+++ b/lib/compiler/test/receive_SUITE.erl
@@ -187,12 +187,13 @@ ref_opt(Config) when is_list(Config) ->
     end.
 
 ref_opt_1(Config) ->
-    ?line DataDir = ?config(data_dir, Config),
-    ?line PrivDir = ?config(priv_dir, Config),
+    DataDir = ?config(data_dir, Config),
+    PrivDir = ?config(priv_dir, Config),
     Sources = filelib:wildcard(filename:join([DataDir,"ref_opt","*.{erl,S}"])),
-    ?line test_lib:p_run(fun(Src) ->
-				 do_ref_opt(Src, PrivDir)
-			 end, Sources),
+    test_lib:p_run(fun(Src) ->
+			   do_ref_opt(Src, PrivDir)
+		   end, Sources),
+    cover_recv_instructions(),
     ok.
 
 do_ref_opt(Source, PrivDir) ->
@@ -202,9 +203,9 @@ do_ref_opt(Source, PrivDir) ->
 					 {outdir,PrivDir}] ++
 					[from_asm || Ext =:= ".S" ]),
 	Base = filename:rootname(filename:basename(Source), Ext),
-    code:purge(list_to_atom(Base)),
-    BeamFile = filename:join(PrivDir, Base),
-    code:load_abs(BeamFile),
+	code:purge(list_to_atom(Base)),
+	BeamFile = filename:join(PrivDir, Base),
+	code:load_abs(BeamFile),
 	ok = Mod:Mod(),
 	{beam_file,Mod,_,_,_,Code} = beam_disasm:file(BeamFile),
 	case Base of
@@ -232,6 +233,27 @@ collect_recv_opt_instrs(Code) ->
 		end] || {function,_,_,_,Is} <- Code],
     lists:append(L).
 
+cover_recv_instructions() ->
+    %% We want to cover the handling of recv_mark and recv_set in beam_utils.
+    %% Since those instructions are introduced in a late optimization pass,
+    %% beam_utils:live_opt() will not see them unless the compilation is
+    %% started from a .S file. The compile_SUITE:asm/1 test case will
+    %% compile all test suite files to .S and then run them through the
+    %% compiler again.
+    %%
+    %% Here will we will ensure that this modules contains recv_mark
+    %% and recv_set instructions.
+    Pid = spawn_link(fun() ->
+			     receive {Parent,Ref} ->
+				     Parent ! Ref
+			     end
+		     end),
+    Ref = make_ref(),
+    Pid ! {self(),Ref},
+    receive
+	Ref -> ok
+    end.
+
 export(Config) when is_list(Config) ->
     Ref = make_ref(),
     ?line self() ! {result,Ref,42},
diff --git a/lib/compiler/test/record_SUITE.erl b/lib/compiler/test/record_SUITE.erl
index f736e14bf6..8cc90026ec 100644
--- a/lib/compiler/test/record_SUITE.erl
+++ b/lib/compiler/test/record_SUITE.erl
@@ -246,6 +246,14 @@ record_test_2(Config) when is_list(Config) ->
     ?line Barf = update_barf(Barf0),
     ?line #barf{a="abc",b=1} = id(Barf),
 
+    %% Test optimization of is_record/3.
+    false = case id({a,b}) of
+		{_,_}=Tuple -> is_record(Tuple, foo)
+	    end,
+    false = case id(true) of
+		true=Bool -> is_record(Bool, foo)
+	    end,
+
     ok.
 
 record_test_3(Config) when is_list(Config) ->
diff --git a/lib/compiler/test/test_lib.erl b/lib/compiler/test/test_lib.erl
index a8befbecd9..4ffac95489 100644
--- a/lib/compiler/test/test_lib.erl
+++ b/lib/compiler/test/test_lib.erl
@@ -18,11 +18,13 @@
 %%
 -module(test_lib).
 
--include("test_server.hrl").
+-include_lib("test_server/include/test_server.hrl").
 -compile({no_auto_import,[binary_part/2]}).
--export([recompile/1,parallel/0,uniq/0,opt_opts/1,get_data_dir/1,
+-export([id/1,recompile/1,parallel/0,uniq/0,opt_opts/1,get_data_dir/1,
 	 smoke_disasm/1,p_run/2,binary_part/2]).
 
+id(I) -> I.
+
 recompile(Mod) when is_atom(Mod) ->
     case whereis(cover_server) of
  	undefined -> ok;
@@ -44,6 +46,10 @@ smoke_disasm(File) when is_list(File) ->
     Res = beam_disasm:file(File),
     {beam_file,_Mod} = {element(1, Res),element(2, Res)}.
 
+%% If we are running cover, we don't want to run test cases that
+%% invokes the compiler in parallel, as doing so would probably
+%% be slower than running them sequentially.
+
 parallel() ->
     case ?t:is_cover() orelse erlang:system_info(schedulers) =:= 1 of
 	true -> [];
@@ -51,10 +57,8 @@ parallel() ->
     end.
 
 uniq() ->
-    U0 = erlang:ref_to_list(make_ref()),
-    U1 = re:replace(U0, "^#Ref", ""),
-    U = re:replace(U1, "[^[A-Za-z0-9_]+", "_", [global]),
-    re:replace(U, "_*$", "", [{return,list}]).
+    U = erlang:unique_integer([positive]),
+    "_" ++ integer_to_list(U).
 
 %% Retrieve the "interesting" compiler options (options for optimization
 %% and compatibility) for the given module.
@@ -90,13 +94,18 @@ get_data_dir(Config) ->
 %%  Will fail the test case if there were any errors.
 
 p_run(Test, List) ->
+    S = erlang:system_info(schedulers),
     N = case ?t:is_cover() of
 	    false ->
-		erlang:system_info(schedulers);
+		S + 1;
 	    true ->
-		%% Cover is running. Using more than one process
-		%% will probably only slow down compilation.
-		1
+		%% Cover is running. Using too many processes
+		%% could slow us down. Measurements on my computer
+		%% showed that using 4 parallel processes was
+		%% slightly faster than using 3. Using more than
+		%% 4 would not buy us much and could actually be
+		%% slower.
+		max(S, 4)
 	end,
     p_run_loop(Test, List, N, [], 0, 0).
 
diff --git a/lib/compiler/test/trycatch_SUITE.erl b/lib/compiler/test/trycatch_SUITE.erl
index 4530d08c77..80d93fbfa4 100644
--- a/lib/compiler/test/trycatch_SUITE.erl
+++ b/lib/compiler/test/trycatch_SUITE.erl
@@ -24,7 +24,8 @@
 	 catch_oops/1,after_oops/1,eclectic/1,rethrow/1,
 	 nested_of/1,nested_catch/1,nested_after/1,
 	 nested_horrid/1,last_call_optimization/1,bool/1,
-	 plain_catch_coverage/1,andalso_orelse/1,get_in_try/1]).
+	 plain_catch_coverage/1,andalso_orelse/1,get_in_try/1,
+	 hockey/1]).
 
 -include_lib("test_server/include/test_server.hrl").
 
@@ -35,11 +36,12 @@ all() ->
     [{group,p}].
 
 groups() -> 
-    [{p,test_lib:parallel(),
+    [{p,[parallel],
       [basic,lean_throw,try_of,try_after,catch_oops,
        after_oops,eclectic,rethrow,nested_of,nested_catch,
        nested_after,nested_horrid,last_call_optimization,
-       bool,plain_catch_coverage,andalso_orelse,get_in_try]}].
+       bool,plain_catch_coverage,andalso_orelse,get_in_try,
+       hockey]}].
 
 
 init_per_suite(Config) ->
@@ -790,7 +792,6 @@ nested_after_1({X1,C1,V1},
 
 
 nested_horrid(Config) when is_list(Config) ->
-    _V = {make_ref(),nested_horrid,4.711},
     {[true,true],{[true,1.0],1.0}} =
 	nested_horrid_1({true,void,void}, 1.0),
     ok.
@@ -944,3 +945,14 @@ get_valid_line([_|T]=Path, Annotations) ->
         _:not_found ->
             get_valid_line(T, Annotations)
     end.
+
+hockey(_) ->
+    {'EXIT',{{badmatch,_},[_|_]}} = (catch hockey()),
+    ok.
+
+hockey() ->
+    %% beam_jump used to generate a call into the try block.
+    %% beam_validator disapproved.
+    receive _ -> (b = fun() -> ok end)
+    + hockey, +x after 0 -> ok end, try (a = fun() -> ok end) + hockey, +
+    y catch _ -> ok end.
diff --git a/lib/compiler/test/warnings_SUITE.erl b/lib/compiler/test/warnings_SUITE.erl
index 0637041873..4e266875ee 100644
--- a/lib/compiler/test/warnings_SUITE.erl
+++ b/lib/compiler/test/warnings_SUITE.erl
@@ -38,8 +38,9 @@
 -export([pattern/1,pattern2/1,pattern3/1,pattern4/1,
 	 guard/1,bad_arith/1,bool_cases/1,bad_apply/1,
          files/1,effect/1,bin_opt_info/1,bin_construction/1,
-	 comprehensions/1,maps/1,redundant_boolean_clauses/1,
-	 latin1_fallback/1]).
+	 comprehensions/1,maps/1,maps_bin_opt_info/1,
+         redundant_boolean_clauses/1,
+	 latin1_fallback/1,underscore/1,no_warnings/1]).
 
 % Default timetrap timeout (set in init_per_testcase).
 -define(default_timeout, ?t:minutes(2)).
@@ -64,7 +65,9 @@ groups() ->
       [pattern,pattern2,pattern3,pattern4,guard,
        bad_arith,bool_cases,bad_apply,files,effect,
        bin_opt_info,bin_construction,comprehensions,maps,
-       redundant_boolean_clauses,latin1_fallback]}].
+       maps_bin_opt_info,
+       redundant_boolean_clauses,latin1_fallback,
+       underscore,no_warnings]}].
 
 init_per_suite(Config) ->
     Config.
@@ -280,11 +283,12 @@ bad_arith(Config) when is_list(Config) ->
 	     {3,sys_core_fold,{eval_failure,badarith}},
 	     {9,sys_core_fold,nomatch_guard},
 	     {9,sys_core_fold,{eval_failure,badarith}},
+	     {9,sys_core_fold,{no_effect,{erlang,is_integer,1}}},
 	     {10,sys_core_fold,nomatch_guard},
 	     {10,sys_core_fold,{eval_failure,badarith}},
 	     {15,sys_core_fold,{eval_failure,badarith}}
 	    ] }}],
-    ?line [] = run(Config, Ts),
+    [] = run(Config, Ts),
     ok.
 
 bool_cases(Config) when is_list(Config) ->
@@ -368,7 +372,7 @@ files(Config) when is_list(Config) ->
 
 %% Test warnings for term construction and BIF calls in effect context.
 effect(Config) when is_list(Config) ->
-    Ts = [{lc,
+    Ts = [{effect,
 	   <<"
              t(X) ->
                case X of
@@ -474,6 +478,19 @@ effect(Config) when is_list(Config) ->
              m9(Bs) ->
                 [{B,ok} = {B,foo:bar(B)} || B <- Bs],
                 ok.
+
+             m10(ConfigTableSize) ->
+               case ConfigTableSize of
+                 apa ->
+                   CurrentConfig = {id(camel_phase3),id(sms)},
+                   case CurrentConfig of
+                     {apa, bepa} -> ok;
+		     _ -> ok
+	           end
+               end,
+               ok.
+
+             id(I) -> I.
              ">>,
 	   [],
 	   {warnings,[{5,sys_core_fold,{no_effect,{erlang,is_integer,1}}},
@@ -578,11 +595,11 @@ maps(Config) when is_list(Config) ->
            <<"
              t() ->
 		 M = {a,[]},
-		 {'EXIT',{badarg,_}} = (catch(M#{ a => 1})),
+		 {'EXIT',{badarg,_}} = (catch(M#{ a => 1 })),
 		 ok.
            ">>,
            [],
-	   {warnings,[{4,v3_kernel,bad_map}]}},
+	   {warnings,[{4,sys_core_fold,{eval_failure,badmap}}]}},
 	   {bad_map_src2,
            <<"
              t() ->
@@ -592,7 +609,7 @@ maps(Config) when is_list(Config) ->
 	     id(I) -> I.
            ">>,
 	   [inline],
-	   {warnings,[{4,v3_kernel,bad_map}]}},
+	    []},
 	   {bad_map_src3,
            <<"
              t() ->
@@ -600,8 +617,8 @@ maps(Config) when is_list(Config) ->
 		 ok.
            ">>,
            [],
-	   {warnings,[{3,v3_core,bad_map}]}},
-	   {bad_map_literal_key,
+	   {warnings,[{3,v3_core,badmap}]}},
+	   {ok_map_literal_key,
            <<"
              t() ->
 		 V = id(1),
@@ -614,10 +631,23 @@ maps(Config) when is_list(Config) ->
 	     id(I) -> I.
            ">>,
            [],
-	   {warnings,[{6,v3_core,nomatch}]}}],
+	   []}],
     run(Config, Ts),
     ok.
 
+maps_bin_opt_info(Config) when is_list(Config) ->
+    Ts = [{map_bsm,
+           <<"
+             t1(<<0:8,7:8,T/binary>>,#{val := I}=M) ->
+                 t1(T, M#{val := I+1});
+             t1(<<_:8>>,M) ->
+                 M.
+           ">>,
+           [bin_opt_info],
+           {warnings,[{2,beam_bsm,bin_opt}]}}],
+    [] = run(Config, Ts),
+    ok.
+
 redundant_boolean_clauses(Config) when is_list(Config) ->
     Ts = [{redundant_boolean_clauses,
            <<"
@@ -678,6 +708,80 @@ latin1_fallback(Conf) when is_list(Conf) ->
 
     ok.
 
+underscore(Config) when is_list(Config) ->
+    S0 = <<"f(A) ->
+              _VAR1 = <<A>>,
+              _VAR2 = {ok,A},
+              _VAR3 = [A],
+              ok.
+	    g(A) ->
+              _VAR1 = A/0,
+              _VAR2 = date(),
+	      ok.
+            h() ->
+               _VAR1 = fun() -> ok end,
+	      ok.
+            i(A) ->
+               _VAR1 = #{A=>42},
+	      ok.
+	 ">>,
+    Ts0 = [{underscore0,
+	    S0,
+	    [],
+	    {warnings,[{2,sys_core_fold,useless_building},
+		       {3,sys_core_fold,useless_building},
+		       {4,sys_core_fold,useless_building},
+		       {7,sys_core_fold,result_ignored},
+		       {8,sys_core_fold,{no_effect,{erlang,date,0}}},
+		       {11,sys_core_fold,useless_building},
+		       {14,sys_core_fold,useless_building}
+		      ]}}],
+    [] = run(Config, Ts0),
+
+    %% Replace all "_VAR<digit>" variables with a plain underscore.
+    %% Now there should be no warnings.
+    S1 = re:replace(S0, "_VAR\\d+", "_", [global]),
+    io:format("~s\n", [S1]),
+    Ts1 = [{underscore1,S1,[],[]}],
+    [] = run(Config, Ts1),
+
+    ok.
+
+no_warnings(Config) when is_list(Config) ->
+    Ts = [{no_warnings,
+           <<"-record(r, {s=ordsets:new(),a,b}).
+
+              a() ->
+                R = #r{},			%No warning expected.
+                {R#r.a,R#r.b}.
+
+              b(X) ->
+                T = true,
+                Var = [X],			%No warning expected.
+                case T of
+	          false -> Var;
+                  true -> []
+                end.
+
+              c() ->
+                R0 = {r,\"abc\",undefined,os:timestamp()}, %No warning.
+                case R0 of
+	          {r,V1,_V2,V3} -> {r,V1,\"def\",V3}
+                end.
+
+              d(In0, Bool) ->
+                {In1,Int} = case id(Bool) of
+                              false -> {In0,0}
+                            end,
+                [In1,Int].
+
+              id(I) -> I.
+           ">>,
+           [],
+           []}],
+    run(Config, Ts),
+    ok.
+
 %%%
 %%% End of test cases.
 %%%
@@ -699,10 +803,10 @@ run(Config, Tests) ->
 %% Compiles a test module and returns the list of errors and warnings.
 
 run_test(Conf, Test0, Warnings) ->
-    Mod = "warnings_"++test_lib:uniq(),
-    Filename = Mod ++ ".erl",
+    Module = "warnings_"++test_lib:uniq(),
+    Filename = Module ++ ".erl",
     ?line DataDir = ?privdir,
-    Test = ["-module(", Mod, "). ", Test0],
+    Test = ["-module(", Module, "). ", Test0],
     ?line File = filename:join(DataDir, Filename),
     ?line Opts = [binary,export_all,return|Warnings],
     ?line ok = file:write_file(File, Test),
diff --git a/lib/compiler/test/z_SUITE.erl b/lib/compiler/test/z_SUITE.erl
new file mode 100644
index 0000000000..eff8a1877f
--- /dev/null
+++ b/lib/compiler/test/z_SUITE.erl
@@ -0,0 +1,62 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+-module(z_SUITE).
+
+-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
+	 init_per_group/2,end_per_group/2,
+	 loaded/1]).
+
+suite() -> [{ct_hooks,[ts_install_cth]}].
+
+all() ->
+    test_lib:recompile(?MODULE),
+    [loaded].
+
+groups() ->
+    [].
+
+init_per_suite(Config) ->
+    Config.
+
+end_per_suite(_Config) ->
+    ok.
+
+init_per_group(_GroupName, Config) ->
+    Config.
+
+end_per_group(_GroupName, Config) ->
+    Config.
+
+loaded(_Config) ->
+    0 = do_loaded(code:all_loaded(), 0),
+    ok.
+
+do_loaded([{M,_}|Ms], E0) ->
+    E = try
+	    _ = M:module_info(),
+	    _ = M:module_info(functions),
+	    E0
+	catch
+	    C:Error ->
+		Stk = erlang:get_stacktrace(),
+		io:format("~p:~p\n~p\n", [C,Error,Stk]),
+		E0 + 1
+	end,
+    do_loaded(Ms, E);
+do_loaded([], E) -> E.
diff --git a/lib/compiler/vsn.mk b/lib/compiler/vsn.mk
index 05e682c893..69f71ba5dd 100644
--- a/lib/compiler/vsn.mk
+++ b/lib/compiler/vsn.mk
@@ -1 +1 @@
-COMPILER_VSN = 5.0.4
+COMPILER_VSN = 6.0
diff --git a/lib/cosEvent/src/cosEvent.app.src b/lib/cosEvent/src/cosEvent.app.src
index 66b0d2e168..5ffd12bc6b 100644
--- a/lib/cosEvent/src/cosEvent.app.src
+++ b/lib/cosEvent/src/cosEvent.app.src
@@ -39,7 +39,7 @@
   {applications, [orber, stdlib, kernel]},
   {env, []},
   {mod, {cosEventApp, []}},
-  {runtime_dependencies, ["stdlib-2.0","orber-3.6.27","kernel-3.0","erts-6.0"]}
+  {runtime_dependencies, ["stdlib-2.0","orber-3.6.27","kernel-3.0","erts-7.0"]}
 ]}.
 
 
diff --git a/lib/cosEvent/src/oe_CosEventComm_PullerS_impl.erl b/lib/cosEvent/src/oe_CosEventComm_PullerS_impl.erl
index 5f2733e72d..9c22eafaab 100644
--- a/lib/cosEvent/src/oe_CosEventComm_PullerS_impl.erl
+++ b/lib/cosEvent/src/oe_CosEventComm_PullerS_impl.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2001-2009. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -251,7 +251,8 @@ send_sync(_OE_This, _OE_From, State, Any) ->
 store_event(DB, Max, Event) ->
     case ets:info(DB, size) of
 	CurrentSize when CurrentSize < Max -> 
-	    ets:insert(DB, {now(), Event}); 
+	    ets:insert(DB, {{erlang:system_time(), erlang:unique_integer([positive])},
+			    Event}); 
 	_ ->
 	    orber:dbg("[~p] oe_CosEventComm_PullerS:store_event(~p); DB full drop event.", 
 		      [?LINE, Event], ?DEBUG_LEVEL),
diff --git a/lib/cosEvent/vsn.mk b/lib/cosEvent/vsn.mk
index 40bf1ba49d..3149020d7c 100644
--- a/lib/cosEvent/vsn.mk
+++ b/lib/cosEvent/vsn.mk
@@ -1,3 +1,2 @@
-
-COSEVENT_VSN = 2.1.15
+COSEVENT_VSN = 2.2
 
diff --git a/lib/cosEventDomain/src/cosEventDomain.app.src b/lib/cosEventDomain/src/cosEventDomain.app.src
index 60114b6a91..f218ac853e 100644
--- a/lib/cosEventDomain/src/cosEventDomain.app.src
+++ b/lib/cosEventDomain/src/cosEventDomain.app.src
@@ -28,6 +28,6 @@
   {applications, [orber, stdlib, kernel]},
   {env, []},
   {mod, {cosEventDomainApp, []}},
-  {runtime_dependencies, ["stdlib-2.0","orber-3.6.27","kernel-3.0","erts-6.0",
+  {runtime_dependencies, ["stdlib-2.0","orber-3.6.27","kernel-3.0","erts-7.0",
 			  "cosNotification-1.1.21"]}
 ]}.
diff --git a/lib/cosEventDomain/src/cosEventDomainApp.erl b/lib/cosEventDomain/src/cosEventDomainApp.erl
index 734e4deccb..86069d9e09 100644
--- a/lib/cosEventDomain/src/cosEventDomainApp.erl
+++ b/lib/cosEventDomain/src/cosEventDomainApp.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2001-2011. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -36,9 +36,6 @@
 %%--------------- EXPORTS ------------------------------------
 %% External MISC
 -export([get_option/3, 
-         create_name/2, 
-         create_name/1,
-	 create_id/0,
 	 create_id/1,
          is_debug_compiled/0,
 	 install/0,
@@ -222,31 +219,10 @@ get_option(Key, OptionList, DefaultList) ->
                     {error, "Invalid option"}
             end
     end.
-%%-----------------------------------------------------------%
-%% function : create_name/2
-%% Arguments: 
-%% Returns  : 
-%% Exception: 
-%% Effect   : 
-%%------------------------------------------------------------ 
-create_name(Name,Type) ->
-    {MSec, Sec, USec} = erlang:now(),
-    lists:concat(['oe_',node(),'_',Type,'_',Name,'_',MSec, '_', Sec, '_', USec]).
- 
-%%-----------------------------------------------------------%
-%% function : create_name/1
-%% Arguments: 
-%% Returns  : 
-%% Exception: 
-%% Effect   : 
-%%------------------------------------------------------------
-create_name(Type) ->
-    {MSec, Sec, USec} = erlang:now(),
-    lists:concat(['oe_',node(),'_',Type,'_',MSec, '_', Sec, '_', USec]).
 
 %%------------------------------------------------------------
-%% function : create_id/0
-%% Arguments: - 
+%% function : create_id/1
+%% Arguments: CosEventDomainAdmin::DomainID (long)
 %% Returns  : CosEventDomainAdmin::DomainID (long)
 %% Exception: 
 %% Purpose  : 
@@ -256,10 +232,6 @@ create_id(2147483647) ->
 create_id(OldID) ->
     OldID+1.
 
-
-create_id() ->
-    {_A,_B,C}=now(),
-    C.
 %%------------------------------------------------------------
 %% function : get_qos
 %% Arguments: 
diff --git a/lib/cosEventDomain/vsn.mk b/lib/cosEventDomain/vsn.mk
index 6317ed3c22..bdde1f6ab2 100644
--- a/lib/cosEventDomain/vsn.mk
+++ b/lib/cosEventDomain/vsn.mk
@@ -1,3 +1,2 @@
-
-COSEVENTDOMAIN_VSN = 1.1.14
+COSEVENTDOMAIN_VSN = 1.2
 
diff --git a/lib/cosFileTransfer/src/cosFileTransfer.app.src b/lib/cosFileTransfer/src/cosFileTransfer.app.src
index 21226b0c6b..033eec9700 100644
--- a/lib/cosFileTransfer/src/cosFileTransfer.app.src
+++ b/lib/cosFileTransfer/src/cosFileTransfer.app.src
@@ -38,6 +38,6 @@
   {env, []},
   {mod, {cosFileTransferApp, []}},
   {runtime_dependencies, ["stdlib-2.0","ssl-5.3.4","orber-3.6.27","kernel-3.0",
-			  "inets-5.10","erts-6.0","cosProperty-1.1.17"]}
+			  "inets-5.10","erts-7.0","cosProperty-1.1.17"]}
 ]}.
 
diff --git a/lib/cosFileTransfer/src/cosFileTransferApp.erl b/lib/cosFileTransfer/src/cosFileTransferApp.erl
index 443c917a97..bcc9f485a0 100644
--- a/lib/cosFileTransfer/src/cosFileTransferApp.erl
+++ b/lib/cosFileTransfer/src/cosFileTransferApp.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2000-2009. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -208,8 +208,9 @@ type_check(Obj, Mod) ->
 %% Effect   : 
 %%------------------------------------------------------------
 create_name(Type) ->
-    {MSec, Sec, USec} = erlang:now(),
-    lists:concat(['oe_',node(),'_',Type,'_',MSec, '_', Sec, '_', USec]).
+    Time = erlang:system_time(),
+    Unique = erlang:unique_integer([positive]),
+    lists:concat(['oe_',node(),'_',Type,'_',Time,'_',Unique]).
 
 
 %%-----------------------------------------------------------%
diff --git a/lib/cosFileTransfer/test/fileTransfer_SUITE.erl b/lib/cosFileTransfer/test/fileTransfer_SUITE.erl
index dfe6fabfab..5e75a9919f 100644
--- a/lib/cosFileTransfer/test/fileTransfer_SUITE.erl
+++ b/lib/cosFileTransfer/test/fileTransfer_SUITE.erl
@@ -732,8 +732,9 @@ create_file_on_source_node({'NATIVE', _}, _Config, Host, FileName, Path, Data) -
     ?match(ok, file:write_file(FileName, list_to_binary(Data))).
     
 create_name(Type) ->
-    {MSec, Sec, USec} = erlang:now(),
-    lists:concat([Type,'_',MSec, '_', Sec, '_', USec]).
+    Time = erlang:system_time(),
+    Unique = erlang:unique_integer([positive]),
+    lists:concat([Type, '_', Time, '_', Unique]).
 
 
 
diff --git a/lib/cosFileTransfer/vsn.mk b/lib/cosFileTransfer/vsn.mk
index f52a1bd800..00bfdb3087 100644
--- a/lib/cosFileTransfer/vsn.mk
+++ b/lib/cosFileTransfer/vsn.mk
@@ -1 +1 @@
-COSFILETRANSFER_VSN = 1.1.16
+COSFILETRANSFER_VSN = 1.2
diff --git a/lib/cosNotification/src/CosNotification_Common.erl b/lib/cosNotification/src/CosNotification_Common.erl
index af9b2d4368..cdaaeee7f8 100644
--- a/lib/cosNotification/src/CosNotification_Common.erl
+++ b/lib/cosNotification/src/CosNotification_Common.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1999-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -39,8 +39,9 @@
 %%--------------- EXPORTS ------------------------------------
 %% External MISC
 -export([get_option/3, 
-         create_name/2, 
+         create_name/0,
          create_name/1,
+         create_name/2, 
 	 create_id/0,
 	 create_id/1,
          is_debug_compiled/0,
@@ -110,17 +111,20 @@ get_option(Key, OptionList, DefaultList) ->
                     {error, "Invalid option"}
             end
     end.
-%%-----------------------------------------------------------%
-%% function : create_name/2
+
+%%------------------------------------------------------------
+%% function : create_name
 %% Arguments: 
 %% Returns  : 
-%% Exception: 
-%% Effect   : 
+%% Effect   : Create a unique name to use when, for eaxmple, starting
+%%            a new server.
 %%------------------------------------------------------------
-create_name(Name,Type) ->
-    {MSec, Sec, USec} = erlang:now(),
-    lists:concat(['oe_',node(),'_',Type,'_',Name,'_',MSec, '_', Sec, '_', USec]).
- 
+create_name() ->
+    Time = erlang:system_time(),
+    Unique = erlang:unique_integer([positive]),
+    lists:concat(['oe_',node(),'_',Time,'_',Unique]).
+
+
 %%-----------------------------------------------------------%
 %% function : create_name/1
 %% Arguments: 
@@ -129,8 +133,21 @@ create_name(Name,Type) ->
 %% Effect   : 
 %%------------------------------------------------------------ 
 create_name(Type) ->
-    {MSec, Sec, USec} = erlang:now(),
-    lists:concat(['oe_',node(),'_',Type,'_',MSec, '_', Sec, '_', USec]).
+    Time = erlang:system_time(),
+    Unique = erlang:unique_integer([positive]),
+    lists:concat(['oe_',node(),'_',Type,'_',Time,'_',Unique]).
+
+%%-----------------------------------------------------------%
+%% function : create_name/2
+%% Arguments: 
+%% Returns  : 
+%% Exception: 
+%% Effect   : 
+%%------------------------------------------------------------
+create_name(Name,Type) ->
+    Time = erlang:system_time(),
+    Unique = erlang:unique_integer([positive]),
+    lists:concat(['oe_',node(),'_',Type,'_',Name,'_',Time,'_',Unique]).
  
 %%------------------------------------------------------------
 %% function : create_id/0
@@ -146,16 +163,16 @@ create_name(Type) ->
 %%------------------------------------------------------------
 create_id(-1) ->
     1;
-create_id( 2147483647) ->
+create_id(2147483647) ->
     -2147483648;
 create_id(OldID) ->
     OldID+1.
 
 create_id() ->
-    {_A,_B,C}=now(),
+    {_A,_B,C}=erlang:timestamp(),
     C.
  
-%%-----------------------------------------------------------%
+%%------------------------------------------------------------
 %% function : type_check
 %% Arguments: Obj  - objectrefernce to test.
 %%            Mod  - Module which contains typeID/0.
diff --git a/lib/cosNotification/src/CosNotification_Definitions.hrl b/lib/cosNotification/src/CosNotification_Definitions.hrl
index 8325b5aa5e..5db081ec2e 100644
--- a/lib/cosNotification/src/CosNotification_Definitions.hrl
+++ b/lib/cosNotification/src/CosNotification_Definitions.hrl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1999-2010. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -315,7 +315,9 @@
 			       {tty, false},
 			       {logfile, false},
 			       {server_options, []}]).
--define(not_CreateDBKey, term_to_binary({now(), node()})).
+-define(not_CreateDBKey, term_to_binary({{erlang:system_time(), 
+					  erlang:unique_integer()}, 
+					node()})).
 
 -define(DEBUG_LEVEL, 3).
 
diff --git a/lib/cosNotification/src/PullerSupplier_impl.erl b/lib/cosNotification/src/PullerSupplier_impl.erl
index 9f12f9c742..22e8355f3a 100644
--- a/lib/cosNotification/src/PullerSupplier_impl.erl
+++ b/lib/cosNotification/src/PullerSupplier_impl.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1999-2009. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -887,7 +887,7 @@ callAny(_OE_THIS, OE_FROM, State, EventIn, Status) ->
 %% Start timers which send a message each time we should push events. Only used
 %% when this objects is defined to supply sequences.
 start_timer(State) ->
-    TS = now(),
+    TS = erlang:timestamp(),
     case catch timer:send_after(timer:seconds(?get_PacingInterval(State)), 
 				{pacing, TS}) of
 	{ok,PacTRef} ->
diff --git a/lib/cosNotification/src/cosNotification.app.src b/lib/cosNotification/src/cosNotification.app.src
index ad02eb4421..52ce164d46 100644
--- a/lib/cosNotification/src/cosNotification.app.src
+++ b/lib/cosNotification/src/cosNotification.app.src
@@ -117,6 +117,6 @@
   {applications, [orber, stdlib, kernel]},
   {env, []},
   {mod, {cosNotificationApp, []}},
-  {runtime_dependencies, ["stdlib-2.0","orber-3.6.27","kernel-3.0","erts-6.0",
+  {runtime_dependencies, ["stdlib-2.5","orber-3.6.27","kernel-3.0","erts-7.0",
 			  "cosTime-1.1.14","cosEvent-2.1.15"]}
 ]}.
diff --git a/lib/cosNotification/src/cosNotificationApp.erl b/lib/cosNotification/src/cosNotificationApp.erl
index ba44163272..251779c558 100644
--- a/lib/cosNotification/src/cosNotificationApp.erl
+++ b/lib/cosNotification/src/cosNotificationApp.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1999-2009. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -221,7 +221,7 @@ start_global_factory() ->
     
 start_global_factory(Args) when is_list(Args) ->
     SO = 'CosNotification_Common':get_option(server_options, Args, ?not_DEFAULT_SETTINGS),
-    Name = create_name(),
+    Name = 'CosNotification_Common':create_name(),
     SPEC = ['CosNotifyChannelAdmin_EventChannelFactory',Args,
 	    [{sup_child, true}, 
 	     {regname, {global, Name}}|SO]],
@@ -432,16 +432,4 @@ init(app_init) ->
 	    'CosNotifyChannelAdmin_EventChannel_impl']}]}}.
 
 
-
-%%------------------------------------------------------------
-%% function : create_name
-%% Arguments: 
-%% Returns  : 
-%% Effect   : Create a unique name to use when, for eaxmple, starting
-%%            a new server.
-%%------------------------------------------------------------
-create_name() ->
-    {MSec, Sec, USec} = erlang:now(),
-    lists:concat(['oe_',node(),'_',MSec, '_', Sec, '_', USec]).
-
 %%--------------- END OF MODULE ------------------------------
diff --git a/lib/cosNotification/src/cosNotification_eventDB.erl b/lib/cosNotification/src/cosNotification_eventDB.erl
index 89332d53f2..f8e2384d15 100644
--- a/lib/cosNotification/src/cosNotification_eventDB.erl
+++ b/lib/cosNotification/src/cosNotification_eventDB.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2000-2009. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -71,10 +71,8 @@
 %%   that the first and last Key change place. {K1,K2}<->{K2,K1} and 
 %%   {K1,K2,K3}<->{K3,K2,K1}.
 %%----------------------------------------------------------------------
-
 -module(cosNotification_eventDB).
 
-
 %%--------------- INCLUDES -----------------------------------
 -include_lib("orber/include/corba.hrl").
 -include_lib("orber/include/ifr_types.hrl").
@@ -221,16 +219,16 @@ gc_events(DBRef, _Priority) when ?is_TimeoutNotUsed(DBRef) ->
 gc_events(DBRef, _Priority) when ?is_StopTNotSupported(DBRef) ->
     ok;
 gc_events(DBRef, Priority) ->
-    {M,S,U} = now(),
+    TS = erlang:monotonic_time(),
+    {resolution, TR} = lists:keyfind(resolution, 1, erlang:system_info(os_monotonic_time_source)),
     case get(oe_GC_timestamp) of
-	Num when {M,S,U} > Num ->
-	    put(oe_GC_timestamp, {M,S+?get_GCTime(DBRef),U}),
+	Num when TS > Num ->
+	    put(oe_GC_timestamp, TS + ?get_GCTime(DBRef) * TR),
 	    spawn_link(?MODULE, gc_start, [DBRef, Priority]);
 	_->
 	    ok
     end.
 
-
 %%------------------------------------------------------------
 %% function : gc_start
 %% Arguments: 
@@ -266,13 +264,13 @@ gc_discard_DB({Key1, Key2, Key3}, DRef) ->
 %% Returns  : 
 %%------------------------------------------------------------
 create_FIFO_Key() ->
-    {M, S, U} = erlang:now(),
+    {M, S, U} = erlang:timestamp(), 
     -M*1000000000000 - S*1000000 - U.
 
 %%------------------------------------------------------------
 %% function : convert_FIFO_Key
 %% Arguments: 
-%% Returns  : A now tuple
+%% Returns  : A timestamp tuple
 %% Comment  : Used when we must reuse a timestamp, i.e., only
 %%            when we must reorder the DB.
 %%------------------------------------------------------------
@@ -322,7 +320,7 @@ extract_start_time(#'CosNotification_StructuredEvent'
 	     _ ->
 		 false
 	 end,
-    convert_time(ST, TRef, now());
+    convert_time(ST, TRef, erlang:timestamp());
 extract_start_time(_, _, _) ->
     false.
 
@@ -337,12 +335,12 @@ extract_start_time(_, _, _) ->
 %%             - undefined eq. value needed but no filter associated.
 %%            Now - used when we want to reuse old TimeStamp which
 %%                  must be done when changing QoS.
-%% Returns  : A modified return from now().
+%% Returns  : A modified return from erlang:timestamp().
 %%------------------------------------------------------------
 extract_deadline(_, _, _, _, false) ->
     false;
 extract_deadline(Event, DefaultT, StopTSupported, TRef, MappingVal) ->
-    extract_deadline(Event, DefaultT, StopTSupported, TRef, MappingVal, now()).
+    extract_deadline(Event, DefaultT, StopTSupported, TRef, MappingVal, erlang:timestamp()).
 
 extract_deadline(_, _, _, _, false, _) ->
     false;
@@ -403,14 +401,14 @@ get_time_diff(UTC, TRef) ->
     UB-LB.
 
 check_deadline(DL) when is_tuple(DL) ->
-    {M,S,U}  = now(),
+    {M,S,U}  = erlang:timestamp(),
     DL >= {-M,-S,-U};
 check_deadline(_DL) ->
     %% This case will cover if no timeout is set.
     false.
 
 check_start_time(ST) when is_tuple(ST) ->
-    {M,S,U}  = now(),
+    {M,S,U}  = erlang:timestamp(),
     ST >= {-M,-S,-U};
 check_start_time(_ST) ->
     %% This case will cover if no earliest delivery time is set.
@@ -1139,8 +1137,10 @@ create_db(QoS, GCTime, GCLimit, TimeRef) ->
 	?is_TimeoutNotUsed(DBRef), ?is_StopTNotSupported(DBRef) ->	
 	    ok;
 	true ->
-	    {M,S,U} = now(),
-	    put(oe_GC_timestamp, {M,S+GCTime,U})
+	    TS = erlang:monotonic_time(),
+	    {resolution, TR} = lists:keyfind(resolution, 1, 
+					     erlang:system_info(os_monotonic_time_source)),
+	    put(oe_GC_timestamp, TS+GCTime*TR)
     end,
     DBRef.
 
diff --git a/lib/cosNotification/test/notify_test_impl.erl b/lib/cosNotification/test/notify_test_impl.erl
index dae7777089..4fe246ef16 100644
--- a/lib/cosNotification/test/notify_test_impl.erl
+++ b/lib/cosNotification/test/notify_test_impl.erl
@@ -289,10 +289,10 @@ disconnect_pull_supplier(_Self, State) ->
 %%--------------- LOCAL FUNCTIONS ----------------------------
 
 delay(Obj, Event, Time, Mod, F) ->
-    io:format("notify_test:delay(~p)  TIME: ~p~n",[Event, now()]),
+    io:format("notify_test:delay(~p)  TIME: ~p~n",[Event, erlang:timestamp()]),
     timer:sleep(Time),
     Mod:F(Obj, Event),
-    io:format("notify_test:delay() DONE: ~p~n",[now()]),
+    io:format("notify_test:delay() DONE: ~p~n",[erlang:timestamp()]),
     ok.
 
 %%--------------- END OF MODULE ------------------------------
diff --git a/lib/cosNotification/vsn.mk b/lib/cosNotification/vsn.mk
index 28d6ec71bf..c1affdf0de 100644
--- a/lib/cosNotification/vsn.mk
+++ b/lib/cosNotification/vsn.mk
@@ -1,2 +1,2 @@
-COSNOTIFICATION_VSN = 1.1.21
+COSNOTIFICATION_VSN = 1.2
 
diff --git a/lib/cosProperty/src/CosPropertyService_PropertySetDef_impl.erl b/lib/cosProperty/src/CosPropertyService_PropertySetDef_impl.erl
index 157b243c53..788518c7bb 100644
--- a/lib/cosProperty/src/CosPropertyService_PropertySetDef_impl.erl
+++ b/lib/cosProperty/src/CosPropertyService_PropertySetDef_impl.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2000-2009. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -128,7 +128,9 @@
 %%              {stop, Reason}
 %%----------------------------------------------------------------------
 init({DefMode, AllowedTypes, AllowedProperties, InitProperties, MyType}) ->
-    Key = term_to_binary({now(), node()}),
+    Key = term_to_binary({{erlang:system_time(), 
+			   erlang:unique_integer()}, 
+			  node()}),
     _F = ?write_function(#oe_CosPropertyService{key=Key,
 						properties=InitProperties}),
     write_result(mnesia:transaction(_F)),
diff --git a/lib/cosProperty/src/cosProperty.app.src b/lib/cosProperty/src/cosProperty.app.src
index b977bb5984..7fad7a602a 100644
--- a/lib/cosProperty/src/cosProperty.app.src
+++ b/lib/cosProperty/src/cosProperty.app.src
@@ -43,5 +43,5 @@
   {env, []},
   {mod, {cosProperty, []}},
   {runtime_dependencies, ["stdlib-2.0","orber-3.6.27","mnesia-4.12",
-			  "kernel-3.0","erts-6.0"]}
+			  "kernel-3.0","erts-7.0"]}
 ]}.
diff --git a/lib/cosProperty/src/cosProperty.erl b/lib/cosProperty/src/cosProperty.erl
index 2368ee3db6..57c35dedf9 100644
--- a/lib/cosProperty/src/cosProperty.erl
+++ b/lib/cosProperty/src/cosProperty.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2000-2009. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -406,8 +406,9 @@ type_check(Obj, Mod) ->
 %% Effect   : 
 %%------------------------------------------------------------
 create_name(Type) ->
-    {MSec, Sec, USec} = erlang:now(),
-    lists:concat(['oe_',node(),'_',Type,'_',MSec, '_', Sec, '_', USec]).
+    Time = erlang:system_time(),
+    Unique = erlang:unique_integer([positive]),
+    lists:concat(['oe_',node(),'_',Type,'_',Time,'_',Unique]).
 
 %%--------------- END OF MODULE ------------------------------
 
diff --git a/lib/cosProperty/vsn.mk b/lib/cosProperty/vsn.mk
index 0f546a2da8..d96508c2d2 100644
--- a/lib/cosProperty/vsn.mk
+++ b/lib/cosProperty/vsn.mk
@@ -1,2 +1,2 @@
-COSPROPERTY_VSN = 1.1.17
+COSPROPERTY_VSN = 1.2
 
diff --git a/lib/cosTime/src/CosTime_TimeService_impl.erl b/lib/cosTime/src/CosTime_TimeService_impl.erl
index bac4ae087c..f44e7ba2f4 100644
--- a/lib/cosTime/src/CosTime_TimeService_impl.erl
+++ b/lib/cosTime/src/CosTime_TimeService_impl.erl
@@ -166,7 +166,7 @@ new_interval(_, _, _, _) ->
 create_universal_time() ->
     %% Time is supposed to be #100 nano-secs passed.
     %% We add micro secs for a greater precision.
-    {MS,S,US} = now(),
+    {MS,S,US} = erlang:timestamp(),
     case catch calendar:datetime_to_gregorian_seconds(
 		 calendar:now_to_universal_time({MS,S,US})) of
 	Secs when is_integer(Secs) ->
diff --git a/lib/cosTime/src/cosTime.app.src b/lib/cosTime/src/cosTime.app.src
index cd01de35cb..ac71fe1b29 100644
--- a/lib/cosTime/src/cosTime.app.src
+++ b/lib/cosTime/src/cosTime.app.src
@@ -27,6 +27,6 @@
   {applications, [orber, stdlib, kernel]},
   {env, []},
   {mod, {cosTime, []}},
-  {runtime_dependencies, ["stdlib-2.0","orber-3.6.27","kernel-3.0","erts-6.0",
+  {runtime_dependencies, ["stdlib-2.0","orber-3.6.27","kernel-3.0","erts-7.0",
 			  "cosEvent-2.1.15"]}
 ]}.
diff --git a/lib/cosTime/src/cosTime.erl b/lib/cosTime/src/cosTime.erl
index f7d03650af..45f305df39 100644
--- a/lib/cosTime/src/cosTime.erl
+++ b/lib/cosTime/src/cosTime.erl
@@ -333,8 +333,9 @@ type_check(Obj, Mod) ->
 %%------------------------------------------------------------
  
 create_name(Type) ->
-    {MSec, Sec, USec} = erlang:now(),
-    lists:concat(['oe_',node(),'_',Type,'_',MSec, '_', Sec, '_', USec]).
+    Time = erlang:system_time(),
+    Unique = erlang:unique_integer([positive]),
+    lists:concat(['oe_',node(),'_',Type,'_',Time,'_',Unique]).
 
 %%--------------- END OF MODULE ------------------------------
 
diff --git a/lib/cosTime/src/cosTimeApp.hrl b/lib/cosTime/src/cosTimeApp.hrl
index f3082816f7..bdf0bf7278 100644
--- a/lib/cosTime/src/cosTimeApp.hrl
+++ b/lib/cosTime/src/cosTimeApp.hrl
@@ -41,7 +41,7 @@
 -define(max_TimeT, 18446744073709551616).
 
 %% The calendar module uses year 0 as base for gregorian functions.
-%% 'ABSOULTE_TIME_DIFF' is #seconfs from year 0 until 15 october 1582, 00:00.
+%% 'ABSOULTE_TIME_DIFF' is #seconds from year 0 until 15 october 1582, 00:00.
 -define(ABSOLUTE_TIME_DIFF, 49947926400).
 %% As above but diff year 0 to 00:00 GMT, January 1, 1970
 -define(STANDARD_TIME_DIFF, 62167219200).
diff --git a/lib/cosTime/vsn.mk b/lib/cosTime/vsn.mk
index 9e9e5c0250..32416f0087 100644
--- a/lib/cosTime/vsn.mk
+++ b/lib/cosTime/vsn.mk
@@ -1,3 +1,2 @@
-COSTIME_VSN = 1.1.14
-
+COSTIME_VSN = 1.2
 
diff --git a/lib/cosTransactions/src/CosTransactions_TransactionFactory_impl.erl b/lib/cosTransactions/src/CosTransactions_TransactionFactory_impl.erl
index 36e37e2d5f..3954f04ad3 100644
--- a/lib/cosTransactions/src/CosTransactions_TransactionFactory_impl.erl
+++ b/lib/cosTransactions/src/CosTransactions_TransactionFactory_impl.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1999-2009. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -145,8 +145,8 @@ create(_Self, State, TimeOut) when is_integer(TimeOut) ->
 	_ ->
 	    if
 		TimeOut > 0 ->
-		    {MegaSecs, Secs, _Microsecs} = erlang:now(),
-		    EState2 = ?tr_set_alarm(EState, MegaSecs*1000000+Secs+TimeOut),
+		    TimeStampSec = erlang:monotonic_time(seconds),
+		    EState2 = ?tr_set_alarm(EState, TimeStampSec+TimeOut),
 		    EState3 = ?tr_set_timeout(EState2, TimeOut*1000),
 		    ETraP = ?tr_start_child(?SUP_ETRAP(EState3)),
 		    {reply, ETraP, State};
diff --git a/lib/cosTransactions/src/ETraP_Common.erl b/lib/cosTransactions/src/ETraP_Common.erl
index dd68e9b038..dca1c1aaa9 100644
--- a/lib/cosTransactions/src/ETraP_Common.erl
+++ b/lib/cosTransactions/src/ETraP_Common.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1999-2009. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -86,8 +86,9 @@ get_option(Key, OptionList, DefaultList) ->
 %%------------------------------------------------------------
  
 create_name(Name,Type) ->
-    {MSec, Sec, USec} = erlang:now(),
-    lists:concat(['oe_',node(),'_',Type,'_',Name,'_',MSec, '_', Sec, '_', USec]).
+    Time = erlang:system_time(),
+    Unique = erlang:unique_integer([positive]),
+    lists:concat(['oe_',node(),'_',Type,'_',Name,'_',Time,'_',Unique]).
  
 %%------------------------------------------------------------
 %% function : create_name/1
@@ -98,8 +99,9 @@ create_name(Name,Type) ->
 %%------------------------------------------------------------
  
 create_name(Type) ->
-    {MSec, Sec, USec} = erlang:now(),
-    lists:concat(['oe_',node(),'_',Type,'_',MSec, '_', Sec, '_', USec]).
+    Time = erlang:system_time(),
+    Unique = erlang:unique_integer([positive]),
+    lists:concat(['oe_',node(),'_',Type,'_',Time,'_',Unique]).
 
 %%------------------------------------------------------------
 %% function : try_timeout
@@ -114,10 +116,9 @@ try_timeout(TimeoutAt) ->
 	infinity ->
 	    false;
 	_->
-	    {MegaSecs, Secs, _Microsecs} = erlang:now(),
-	    Time  =  MegaSecs*1000000+Secs,
+	    TimeSec = erlang:monotonic_time(seconds),
 	    if 
-		Time < TimeoutAt ->
+		TimeSec < TimeoutAt ->
 		    false;
 		true ->
 		    true
diff --git a/lib/cosTransactions/src/ETraP_Server_impl.erl b/lib/cosTransactions/src/ETraP_Server_impl.erl
index e2c5d88f9d..db23d6c166 100644
--- a/lib/cosTransactions/src/ETraP_Server_impl.erl
+++ b/lib/cosTransactions/src/ETraP_Server_impl.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1999-2009. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -38,7 +38,8 @@
 %% Log files are created in the current directory, which is why the 
 %% application requires read/write rights for current directory. The
 %% file name looks like:
-%% "oe_nonode@nohost_subc_939_383117_295538" (the last part is now())
+%% "oe_nonode@nohost_subc_1429872479809947099_438" (the two last parts are
+%% erlang:system_time() and erlang:unique_integer([positive]))
 %% It is equal to what the object is started as, i.e., {regname, {global, X}}.
 %% 
 %% If the application is unable to read the log it will exit and the 
diff --git a/lib/cosTransactions/src/cosTransactions.app.src b/lib/cosTransactions/src/cosTransactions.app.src
index 6b99915ad6..074d82f487 100644
--- a/lib/cosTransactions/src/cosTransactions.app.src
+++ b/lib/cosTransactions/src/cosTransactions.app.src
@@ -40,5 +40,5 @@
   {applications, [orber, stdlib, kernel]},
   {env, []},
   {mod, {cosTransactions, []}},
-  {runtime_dependencies, ["stdlib-2.0","orber-3.6.27","kernel-3.0","erts-6.0"]}
+  {runtime_dependencies, ["stdlib-2.0","orber-3.6.27","kernel-3.0","erts-7.0"]}
 ]}.
diff --git a/lib/cosTransactions/vsn.mk b/lib/cosTransactions/vsn.mk
index 7aed212523..929f8c73d1 100644
--- a/lib/cosTransactions/vsn.mk
+++ b/lib/cosTransactions/vsn.mk
@@ -1 +1 @@
-COSTRANSACTIONS_VSN = 1.2.14
+COSTRANSACTIONS_VSN = 1.3
diff --git a/lib/crypto/c_src/crypto.c b/lib/crypto/c_src/crypto.c
index 26e2486dc2..adacdcbc73 100644
--- a/lib/crypto/c_src/crypto.c
+++ b/lib/crypto/c_src/crypto.c
@@ -54,6 +54,10 @@
 #include <openssl/evp.h>
 #include <openssl/hmac.h>
 
+#if OPENSSL_VERSION_NUMBER >= 0x1000000fL
+#include <openssl/modes.h>
+#endif
+
 #include "crypto_callback.h"
 
 #if OPENSSL_VERSION_NUMBER >= 0x00908000L && !defined(OPENSSL_NO_SHA224) && defined(NID_sha224)\
@@ -85,13 +89,32 @@
 # define HAVE_AES_IGE
 #endif
 
+#if OPENSSL_VERSION_NUMBER >= 0x1000100fL
+# define HAVE_GCM
+#endif
+
+#if defined(NID_chacha20) && !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
+# define HAVE_CHACHA20_POLY1305
+#endif
+
 #if defined(HAVE_EC)
 #include <openssl/ec.h>
 #include <openssl/ecdh.h>
 #include <openssl/ecdsa.h>
 #endif
 
+#if defined(HAVE_CHACHA20_POLY1305)
+#include <openssl/chacha.h>
+#include <openssl/poly1305.h>
 
+#if !defined(CHACHA20_NONCE_LEN)
+# define CHACHA20_NONCE_LEN 8
+#endif
+#if !defined(POLY1305_TAG_LEN)
+# define POLY1305_TAG_LEN 16
+#endif
+
+#endif
 
 #ifdef VALGRIND
     #  include <valgrind/memcheck.h>
@@ -219,6 +242,7 @@ static ERL_NIF_TERM aes_cfb_8_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM
 static ERL_NIF_TERM aes_cfb_128_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
 static ERL_NIF_TERM aes_ctr_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
 static ERL_NIF_TERM aes_ctr_stream_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM aes_ecb_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
 static ERL_NIF_TERM rand_bytes_1(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
 static ERL_NIF_TERM strong_rand_bytes_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
 static ERL_NIF_TERM rand_bytes_3(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
@@ -257,6 +281,11 @@ static ERL_NIF_TERM ecdh_compute_key_nif(ErlNifEnv* env, int argc, const ERL_NIF
 
 static ERL_NIF_TERM rand_seed_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
 
+static ERL_NIF_TERM aes_gcm_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM aes_gcm_decrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
+
+static ERL_NIF_TERM chacha20_poly1305_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM chacha20_poly1305_decrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
 
 /* helpers */
 static void init_algorithms_types(ErlNifEnv*);
@@ -351,6 +380,7 @@ static ErlNifFunc nif_funcs[] = {
     {"aes_ctr_decrypt", 3, aes_ctr_encrypt},
     {"aes_ctr_stream_encrypt", 2, aes_ctr_stream_encrypt},
     {"aes_ctr_stream_decrypt", 2, aes_ctr_stream_encrypt},
+    {"aes_ecb_crypt", 3, aes_ecb_crypt},
     {"rand_bytes", 1, rand_bytes_1},
     {"strong_rand_bytes_nif", 1, strong_rand_bytes_nif},
     {"rand_bytes", 3, rand_bytes_3},
@@ -382,12 +412,20 @@ static ErlNifFunc nif_funcs[] = {
     {"bf_ecb_crypt", 3, bf_ecb_crypt},
     {"blowfish_ofb64_encrypt", 3, blowfish_ofb64_encrypt},
 
-    {"ec_key_generate", 1, ec_key_generate},
+    {"ec_key_generate", 2, ec_key_generate},
     {"ecdsa_sign_nif", 4, ecdsa_sign_nif},
     {"ecdsa_verify_nif", 5, ecdsa_verify_nif},
     {"ecdh_compute_key_nif", 3, ecdh_compute_key_nif},
 
-    {"rand_seed_nif", 1, rand_seed_nif}
+    {"rand_seed_nif", 1, rand_seed_nif},
+
+    {"aes_gcm_encrypt", 4, aes_gcm_encrypt},
+    {"aes_gcm_decrypt", 5, aes_gcm_decrypt},
+
+    {"chacha20_poly1305_encrypt", 4, chacha20_poly1305_encrypt},
+    {"chacha20_poly1305_decrypt", 5, chacha20_poly1305_decrypt}
+
+
 };
 
 ERL_NIF_INIT(crypto,nif_funcs,load,NULL,upgrade,unload)
@@ -725,7 +763,7 @@ static ERL_NIF_TERM algo_hash[8];   /* increase when extending the list */
 static int algo_pubkey_cnt;
 static ERL_NIF_TERM algo_pubkey[3]; /* increase when extending the list */
 static int algo_cipher_cnt;
-static ERL_NIF_TERM algo_cipher[2]; /* increase when extending the list */
+static ERL_NIF_TERM algo_cipher[4]; /* increase when extending the list */
 
 static void init_algorithms_types(ErlNifEnv* env)
 {
@@ -763,6 +801,12 @@ static void init_algorithms_types(ErlNifEnv* env)
 #ifdef HAVE_AES_IGE
     algo_cipher[algo_cipher_cnt++] = enif_make_atom(env,"aes_ige256");
 #endif
+#if defined(HAVE_GCM)
+    algo_cipher[algo_cipher_cnt++] = enif_make_atom(env,"aes_gcm");
+#endif
+#if defined(HAVE_CHACHA20_POLY1305)
+    algo_cipher[algo_cipher_cnt++] = enif_make_atom(env,"chacha20_poly1305");
+#endif
 
     ASSERT(algo_hash_cnt <= sizeof(algo_hash)/sizeof(ERL_NIF_TERM));
     ASSERT(algo_pubkey_cnt <= sizeof(algo_pubkey)/sizeof(ERL_NIF_TERM));
@@ -1762,6 +1806,268 @@ static ERL_NIF_TERM aes_ctr_stream_encrypt(ErlNifEnv* env, int argc, const ERL_N
     return ret;
 }
 
+static ERL_NIF_TERM aes_gcm_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{/* (Key,Iv,AAD,In) */
+#if defined(HAVE_GCM)
+    GCM128_CONTEXT *ctx = NULL;
+    ErlNifBinary key, iv, aad, in;
+    AES_KEY aes_key;
+    unsigned char *outp;
+    ERL_NIF_TERM out, out_tag;
+
+    CHECK_OSE_CRYPTO();
+
+    if (!enif_inspect_iolist_as_binary(env, argv[0], &key)
+	|| AES_set_encrypt_key(key.data, key.size*8, &aes_key) != 0
+	|| !enif_inspect_binary(env, argv[1], &iv) || iv.size == 0
+	|| !enif_inspect_iolist_as_binary(env, argv[2], &aad)
+	|| !enif_inspect_iolist_as_binary(env, argv[3], &in)) {
+	return enif_make_badarg(env);
+    }
+
+    if (!(ctx = CRYPTO_gcm128_new(&aes_key, (block128_f)AES_encrypt)))
+	return atom_error;
+
+    CRYPTO_gcm128_setiv(ctx, iv.data, iv.size);
+
+    if (CRYPTO_gcm128_aad(ctx, aad.data, aad.size))
+	goto out_err;
+
+    outp = enif_make_new_binary(env, in.size, &out);
+
+    /* encrypt */
+    if (CRYPTO_gcm128_encrypt(ctx, in.data, outp, in.size))
+	goto out_err;
+
+    /* calculate the tag */
+    CRYPTO_gcm128_tag(ctx, enif_make_new_binary(env, EVP_GCM_TLS_TAG_LEN, &out_tag), EVP_GCM_TLS_TAG_LEN);
+    CRYPTO_gcm128_release(ctx);
+
+    CONSUME_REDS(env, in);
+
+    return enif_make_tuple2(env, out, out_tag);
+
+out_err:
+    CRYPTO_gcm128_release(ctx);
+    return atom_error;
+
+#else
+    return atom_notsup;
+#endif
+}
+
+static ERL_NIF_TERM aes_gcm_decrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{/* (Key,Iv,AAD,In,Tag) */
+#if defined(HAVE_GCM)
+    GCM128_CONTEXT *ctx;
+    ErlNifBinary key, iv, aad, in, tag;
+    AES_KEY aes_key;
+    unsigned char *outp;
+    ERL_NIF_TERM out;
+
+    CHECK_OSE_CRYPTO();
+
+    if (!enif_inspect_iolist_as_binary(env, argv[0], &key)
+        || AES_set_encrypt_key(key.data, key.size*8, &aes_key) != 0
+	|| !enif_inspect_binary(env, argv[1], &iv) || iv.size == 0
+	|| !enif_inspect_iolist_as_binary(env, argv[2], &aad)
+	|| !enif_inspect_iolist_as_binary(env, argv[3], &in)
+	|| !enif_inspect_iolist_as_binary(env, argv[4], &tag) || tag.size != EVP_GCM_TLS_TAG_LEN) {
+	return enif_make_badarg(env);
+    }
+
+    if (!(ctx = CRYPTO_gcm128_new(&aes_key, (block128_f)AES_encrypt)))
+	return atom_error;
+
+    CRYPTO_gcm128_setiv(ctx, iv.data, iv.size);
+
+    if (CRYPTO_gcm128_aad(ctx, aad.data, aad.size))
+	goto out_err;
+
+    outp = enif_make_new_binary(env, in.size, &out);
+
+    /* decrypt */
+    if (CRYPTO_gcm128_decrypt(ctx, in.data, outp, in.size))
+	    goto out_err;
+
+    /* calculate and check the tag */
+    if (CRYPTO_gcm128_finish(ctx, tag.data, EVP_GCM_TLS_TAG_LEN))
+	    goto out_err;
+
+    CRYPTO_gcm128_release(ctx);
+    CONSUME_REDS(env, in);
+
+    return out;
+
+out_err:
+    CRYPTO_gcm128_release(ctx);
+    return atom_error;
+#else
+    return atom_notsup;
+#endif
+}
+
+#if defined(HAVE_CHACHA20_POLY1305)
+static void
+poly1305_update_with_length(poly1305_state *poly1305,
+			    const unsigned char *data, size_t data_len)
+{
+        size_t j = data_len;
+        unsigned char length_bytes[8];
+        unsigned i;
+
+        for (i = 0; i < sizeof(length_bytes); i++) {
+                length_bytes[i] = j;
+                j >>= 8;
+        }
+
+        CRYPTO_poly1305_update(poly1305, data, data_len);
+        CRYPTO_poly1305_update(poly1305, length_bytes, sizeof(length_bytes));
+}
+#endif
+
+static ERL_NIF_TERM chacha20_poly1305_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{/* (Key,Iv,AAD,In) */
+#if defined(HAVE_CHACHA20_POLY1305)
+    ErlNifBinary key, iv, aad, in;
+    unsigned char *outp;
+    ERL_NIF_TERM out, out_tag;
+    ErlNifUInt64 in_len_64;
+    unsigned char poly1305_key[32];
+    poly1305_state poly1305;
+
+    CHECK_OSE_CRYPTO();
+
+    if (!enif_inspect_iolist_as_binary(env, argv[0], &key) || key.size != 32
+	|| !enif_inspect_binary(env, argv[1], &iv) || iv.size != CHACHA20_NONCE_LEN
+	|| !enif_inspect_iolist_as_binary(env, argv[2], &aad)
+	|| !enif_inspect_iolist_as_binary(env, argv[3], &in)) {
+	return enif_make_badarg(env);
+    }
+
+    /* Take from OpenSSL patch set/LibreSSL:
+     *
+     * The underlying ChaCha implementation may not overflow the block
+     * counter into the second counter word. Therefore we disallow
+     * individual operations that work on more than 2TB at a time.
+     * in_len_64 is needed because, on 32-bit platforms, size_t is only
+     * 32-bits and this produces a warning because it's always false.
+     * Casting to uint64_t inside the conditional is not sufficient to stop
+     * the warning. */
+    in_len_64 = in.size;
+    if (in_len_64 >= (1ULL << 32) * 64 - 64)
+	return enif_make_badarg(env);
+
+    memset(poly1305_key, 0, sizeof(poly1305_key));
+    CRYPTO_chacha_20(poly1305_key, poly1305_key, sizeof(poly1305_key), key.data, iv.data, 0);
+
+    outp = enif_make_new_binary(env, in.size, &out);
+
+    CRYPTO_poly1305_init(&poly1305, poly1305_key);
+    poly1305_update_with_length(&poly1305, aad.data, aad.size);
+    CRYPTO_chacha_20(outp, in.data, in.size, key.data, iv.data, 1);
+    poly1305_update_with_length(&poly1305, outp, in.size);
+
+    CRYPTO_poly1305_finish(&poly1305, enif_make_new_binary(env, POLY1305_TAG_LEN, &out_tag));
+
+    CONSUME_REDS(env, in);
+
+    return enif_make_tuple2(env, out, out_tag);
+
+#else
+    return atom_notsup;
+#endif
+}
+
+static ERL_NIF_TERM chacha20_poly1305_decrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{/* (Key,Iv,AAD,In,Tag) */
+#if defined(HAVE_CHACHA20_POLY1305)
+    ErlNifBinary key, iv, aad, in, tag;
+    unsigned char *outp;
+    ERL_NIF_TERM out;
+    ErlNifUInt64 in_len_64;
+    unsigned char poly1305_key[32];
+    unsigned char mac[POLY1305_TAG_LEN];
+    poly1305_state poly1305;
+
+    CHECK_OSE_CRYPTO();
+
+    if (!enif_inspect_iolist_as_binary(env, argv[0], &key) || key.size != 32
+	|| !enif_inspect_binary(env, argv[1], &iv) || iv.size != CHACHA20_NONCE_LEN
+	|| !enif_inspect_iolist_as_binary(env, argv[2], &aad)
+	|| !enif_inspect_iolist_as_binary(env, argv[3], &in)
+	|| !enif_inspect_iolist_as_binary(env, argv[4], &tag) || tag.size != POLY1305_TAG_LEN) {
+	return enif_make_badarg(env);
+    }
+
+    /* Take from OpenSSL patch set/LibreSSL:
+     *
+     * The underlying ChaCha implementation may not overflow the block
+     * counter into the second counter word. Therefore we disallow
+     * individual operations that work on more than 2TB at a time.
+     * in_len_64 is needed because, on 32-bit platforms, size_t is only
+     * 32-bits and this produces a warning because it's always false.
+     * Casting to uint64_t inside the conditional is not sufficient to stop
+     * the warning. */
+    in_len_64 = in.size;
+    if (in_len_64 >= (1ULL << 32) * 64 - 64)
+	return enif_make_badarg(env);
+
+    memset(poly1305_key, 0, sizeof(poly1305_key));
+    CRYPTO_chacha_20(poly1305_key, poly1305_key, sizeof(poly1305_key), key.data, iv.data, 0);
+
+    CRYPTO_poly1305_init(&poly1305, poly1305_key);
+    poly1305_update_with_length(&poly1305, aad.data, aad.size);
+    poly1305_update_with_length(&poly1305, in.data, in.size);
+    CRYPTO_poly1305_finish(&poly1305, mac);
+
+    if (memcmp(mac, tag.data, POLY1305_TAG_LEN) != 0)
+	return atom_error;
+
+    outp = enif_make_new_binary(env, in.size, &out);
+
+    CRYPTO_chacha_20(outp, in.data, in.size, key.data, iv.data, 1);
+
+    CONSUME_REDS(env, in);
+
+    return out;
+#else
+    return atom_notsup;
+#endif
+}
+
+static ERL_NIF_TERM aes_ecb_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{/* (Key, Data, IsEncrypt) */    
+    ErlNifBinary key_bin, data_bin;
+    AES_KEY aes_key;
+    int i;
+    unsigned char* ret_ptr;
+    ERL_NIF_TERM ret;    
+
+    CHECK_OSE_CRYPTO();
+
+    if (!enif_inspect_iolist_as_binary(env, argv[0], &key_bin)
+    || (key_bin.size != 16 && key_bin.size != 32)
+    || !enif_inspect_iolist_as_binary(env, argv[1], &data_bin)
+    || data_bin.size % 16 != 0) {
+    return enif_make_badarg(env);
+    }
+
+    if (argv[2] == atom_true) {
+        i = AES_ENCRYPT;
+        AES_set_encrypt_key(key_bin.data, key_bin.size*8, &aes_key);
+    }
+    else {
+        i = AES_DECRYPT;
+        AES_set_decrypt_key(key_bin.data, key_bin.size*8, &aes_key);
+    }
+
+    ret_ptr = enif_make_new_binary(env, data_bin.size, &ret);
+    AES_ecb_encrypt(data_bin.data, ret_ptr, &aes_key, i);
+    CONSUME_REDS(env,data_bin);
+    return ret;
+}
+
 static ERL_NIF_TERM rand_bytes_1(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
 {/* (Bytes) */     
     unsigned bytes;
@@ -2194,11 +2500,12 @@ done:
 static ERL_NIF_TERM aes_cbc_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
 {/* (Key, IVec, Data, IsEncrypt) */
     ErlNifBinary key_bin, ivec_bin, data_bin;
-    AES_KEY aes_key;
     unsigned char ivec[16];
-    int i;
+    int enc, i = 0, outlen = 0;
+    EVP_CIPHER_CTX ctx;
+    const EVP_CIPHER *cipher = NULL;
     unsigned char* ret_ptr;
-    ERL_NIF_TERM ret;    
+    ERL_NIF_TERM ret;
 
     CHECK_OSE_CRYPTO();
 
@@ -2212,20 +2519,43 @@ static ERL_NIF_TERM aes_cbc_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM a
 	return enif_make_badarg(env);
     }
 
-    if (argv[3] == atom_true) {
-	i = AES_ENCRYPT;
-	AES_set_encrypt_key(key_bin.data, key_bin.size*8, &aes_key);
-    }
-    else {
-	i = AES_DECRYPT;
-	AES_set_decrypt_key(key_bin.data, key_bin.size*8, &aes_key);
-    }
+    if (argv[3] == atom_true)
+	enc = 1;
+    else
+	enc = 0;
+
+    EVP_CIPHER_CTX_init(&ctx);
+
+    if (key_bin.size == 16)
+	cipher = EVP_aes_128_cbc();
+    else if (key_bin.size == 32)
+	cipher = EVP_aes_256_cbc();
+
+    memcpy(ivec, ivec_bin.data, 16); /* writeable copy */
+
+    /* openssl docs say we need to leave at least 3 blocks available
+       at the end of the buffer for EVP calls. let's be safe */
+    ret_ptr = enif_make_new_binary(env, data_bin.size + 16*3, &ret);
+
+    if (EVP_CipherInit_ex(&ctx, cipher, NULL, key_bin.data, ivec, enc) != 1)
+	return enif_make_badarg(env);
+
+    /* disable padding, we only handle whole blocks */
+    EVP_CIPHER_CTX_set_padding(&ctx, 0);
+
+    if (EVP_CipherUpdate(&ctx, ret_ptr, &i, data_bin.data, data_bin.size) != 1)
+	return enif_make_badarg(env);
+    outlen += i;
+    if (EVP_CipherFinal_ex(&ctx, ret_ptr + outlen, &i) != 1)
+	return enif_make_badarg(env);
+    outlen += i;
+
+    EVP_CIPHER_CTX_cleanup(&ctx);
 
-    ret_ptr = enif_make_new_binary(env, data_bin.size, &ret);
-    memcpy(ivec, ivec_bin.data, 16); /* writable copy */
-    AES_cbc_encrypt(data_bin.data, ret_ptr, data_bin.size, &aes_key, ivec, i);
     CONSUME_REDS(env,data_bin);
-    return ret;
+
+    /* the garbage collector is going to love this */
+    return enif_make_sub_binary(env, ret, 0, outlen);
 }
 
 static ERL_NIF_TERM aes_ige_crypt_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
@@ -3419,32 +3749,37 @@ out:
 static ERL_NIF_TERM ec_key_generate(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
 {
 #if defined(HAVE_EC)
-    EC_KEY *key = ec_key_new(env, argv[0]);
+    EC_KEY *key = NULL;
+    const EC_GROUP *group;
+    const EC_POINT *public_key;
+    ERL_NIF_TERM priv_key;
+    ERL_NIF_TERM pub_key = atom_undefined;
 
     CHECK_OSE_CRYPTO();
 
-    if (key && EC_KEY_generate_key(key)) {
-	const EC_GROUP *group;
-	const EC_POINT *public_key;
-	ERL_NIF_TERM priv_key;
-	ERL_NIF_TERM pub_key = atom_undefined;
-
-	group = EC_KEY_get0_group(key);
-	public_key = EC_KEY_get0_public_key(key);
+    if (!get_ec_key(env, argv[0], argv[1], atom_undefined, &key))
+	goto badarg;
 
-	if (group && public_key) {
-	    pub_key = point2term(env, group, public_key,
-				 EC_KEY_get_conv_form(key));
-	}
-	priv_key = bn2term(env, EC_KEY_get0_private_key(key));
-	EC_KEY_free(key);
-	return enif_make_tuple2(env, pub_key, priv_key);
+    if (argv[1] == atom_undefined) {
+	if (!EC_KEY_generate_key(key))
+	    goto badarg;
     }
-    else {
-	if (key)
-	    EC_KEY_free(key);
-	return enif_make_badarg(env);
+
+    group = EC_KEY_get0_group(key);
+    public_key = EC_KEY_get0_public_key(key);
+
+    if (group && public_key) {
+	pub_key = point2term(env, group, public_key,
+			     EC_KEY_get_conv_form(key));
     }
+    priv_key = bn2term(env, EC_KEY_get0_private_key(key));
+    EC_KEY_free(key);
+    return enif_make_tuple2(env, pub_key, priv_key);
+
+badarg:
+    if (key)
+	EC_KEY_free(key);
+    return enif_make_badarg(env);
 #else
     return atom_notsup;
 #endif
diff --git a/lib/crypto/doc/src/crypto.xml b/lib/crypto/doc/src/crypto.xml
index 98384978a5..4a8ba5c1bf 100644
--- a/lib/crypto/doc/src/crypto.xml
+++ b/lib/crypto/doc/src/crypto.xml
@@ -41,7 +41,7 @@
       </item>
       <item>
         <p>Block ciphers - <url href="http://csrc.nist.gov/groups/ST/toolkit/block_ciphers.html"> </url> DES and AES in
-        Block Cipher Modes - <url href="http://csrc.nist.gov/groups/ST/toolkit/BCM/index.html"> ECB, CBC, CFB, OFB and CTR </url></p>
+        Block Cipher Modes - <url href="http://csrc.nist.gov/groups/ST/toolkit/BCM/index.html"> ECB, CBC, CFB, OFB, CTR and GCM </url></p>
       </item>
       <item>
         <p><url href="http://www.ietf.org/rfc/rfc1321.txt"> RSA encryption RFC 1321 </url> </p>
@@ -53,6 +53,12 @@
       <item>
         <p><url href="http://www.ietf.org/rfc/rfc2945.txt"> Secure Remote Password Protocol (SRP - RFC 2945) </url></p>
       </item>
+      <item>
+        <p>gcm: Dworkin, M., "Recommendation for Block Cipher Modes of
+        Operation: Galois/Counter Mode (GCM) and GMAC",
+        National Institute of Standards and Technology SP 800-
+        38D, November 2007.</p>
+      </item>
     </list>
   </description>
 
@@ -132,6 +138,8 @@
      blowfish_cfb64 | des_cbc | des_cfb | des3_cbc | des3_cbf
      | des_ede3 | rc2_cbc </code></p>
 
+     <p><code>aead_cipher() =  aes_gcm | chacha20_poly1305 </code></p>
+
      <p><code>stream_key() =  aes_key() | rc4_key() </code></p>
 
      <p><code>block_key() =  aes_key() |  blowfish_key() | des_key()| des3_key() </code></p>
@@ -152,7 +160,7 @@
      Note that both md4 and md5 are recommended only for compatibility with existing applications.
      </p>
      <p><code> cipher_algorithms() = des_cbc | des_cfb |  des3_cbc | des3_cbf | des_ede3 |
-     blowfish_cbc | blowfish_cfb64 | aes_cbc128 | aes_cfb8 | aes_cfb128| aes_cbc256 | aes_ige256 | rc2_cbc | aes_ctr| rc4  </code> </p>
+     blowfish_cbc | blowfish_cfb64 | aes_cbc128 | aes_cfb8 | aes_cfb128| aes_cbc256 | aes_ige256 | aes_gcm | chacha20_poly1305 | rc2_cbc | aes_ctr| rc4  </code> </p>
      <p><code> public_key_algorithms() =   rsa |dss | ecdsa | dh | ecdh | ec_gf2m</code>
      Note that ec_gf2m is not strictly a public key algorithm, but a restriction on what curves are supported
      with ecdsa and ecdh.
@@ -161,18 +169,53 @@
  </section>
 
   <funcs>
-      <func>
+    <func>
+      <name>block_encrypt(Type, Key, PlainText) -> CipherText</name>
+      <fsummary>Encrypt <c>PlainText</c> according to <c>Type</c> block cipher</fsummary>
+      <type>
+  <v>Type = des_ecb | blowfish_ecb | aes_ecb </v>
+  <v>Key = block_key() </v>
+        <v>PlainText = iodata() </v>
+      </type>
+      <desc>
+        <p>Encrypt <c>PlainText</c> according to <c>Type</c> block cipher.</p>
+  <p>May throw exception <c>notsup</c> in case the chosen <c>Type</c>
+  is not supported by the underlying OpenSSL implementation.</p>
+      </desc>
+    </func>
+
+    <func>
+      <name>block_decrypt(Type, Key, CipherText) -> PlainText</name>
+      <fsummary>Decrypt <c>CipherText</c> according to <c>Type</c> block cipher</fsummary>
+      <type>
+  <v>Type = des_ecb | blowfish_ecb | aes_ecb </v>
+  <v>Key = block_key() </v>
+        <v>PlainText = iodata() </v>
+      </type>
+      <desc>
+        <p>Decrypt <c>CipherText</c> according to <c>Type</c> block cipher.</p>
+  <p>May throw exception <c>notsup</c> in case the chosen <c>Type</c>
+  is not supported by the underlying OpenSSL implementation.</p>
+      </desc>
+    </func>
+
+    <func>
       <name>block_encrypt(Type, Key, Ivec, PlainText) -> CipherText</name>
-      <fsummary>Encrypt <c>PlainText</c>according to <c>Type</c> block cipher</fsummary>
+      <name>block_encrypt(AeadType, Key, Ivec, {AAD, PlainText}) -> {CipherText, CipherTag}</name>
+      <fsummary>Encrypt <c>PlainText</c> according to <c>Type</c> block cipher</fsummary>
       <type>
 	<v>Type = block_cipher() </v>
+	<v>AeadType = aead_cipher() </v>
 	<v>Key = block_key() </v>
         <v>PlainText = iodata() </v>
-        <v>IVec = CipherText = binary()</v>
+        <v>AAD = IVec = CipherText = CipherTag = binary()</v>
       </type>
       <desc>
-        <p>Encrypt <c>PlainText</c>according to <c>Type</c> block cipher.
+        <p>Encrypt <c>PlainText</c> according to <c>Type</c> block cipher.
 	<c>IVec</c> is an arbitrary initializing vector.</p>
+	<p>In AEAD (Authenticated Encryption with Associated Data) mode, encrypt
+	<c>PlainText</c>according to <c>Type</c> block cipher and calculate
+	<c>CipherTag</c> that also authenticates the <c>AAD</c> (Associated Authenticated Data).</p>
 	<p>May throw exception <c>notsup</c> in case the chosen <c>Type</c>
 	is not supported by the underlying OpenSSL implementation.</p>
       </desc>
@@ -180,16 +223,22 @@
 
     <func>
       <name>block_decrypt(Type, Key, Ivec, CipherText) -> PlainText</name>
-      <fsummary>Decrypt <c>CipherText</c>according to <c>Type</c> block cipher</fsummary>
+      <name>block_decrypt(AeadType, Key, Ivec, {AAD, CipherText, CipherTag}) -> PlainText | error</name>
+      <fsummary>Decrypt <c>CipherText</c> according to <c>Type</c> block cipher</fsummary>
       <type>
 	<v>Type = block_cipher() </v>
+	<v>AeadType = aead_cipher() </v>
 	<v>Key = block_key() </v>
         <v>PlainText = iodata() </v>
-        <v>IVec = CipherText = binary()</v>
+        <v>AAD = IVec = CipherText = CipherTag = binary()</v>
       </type>
       <desc>
-        <p>Decrypt <c>CipherText</c>according to <c>Type</c> block cipher.
+        <p>Decrypt <c>CipherText</c> according to <c>Type</c> block cipher.
 	<c>IVec</c> is an arbitrary initializing vector.</p>
+        <p>In AEAD (Authenticated Encryption with Associated Data) mode, decrypt
+	<c>CipherText</c>according to <c>Type</c> block cipher and check the authenticity
+	the <c>PlainText</c> and <c>AAD</c> (Associated Authenticated Data) using the
+	<c>CipherTag</c>. May return <c>error</c> if the decryption or validation fail's</p>
 	<p>May throw exception <c>notsup</c> in case the chosen <c>Type</c>
 	is not supported by the underlying OpenSSL implementation.</p>
       </desc>
@@ -250,7 +299,7 @@
 	<v>SrpUserParams = {user, [Generator::binary(), Prime::binary(), Version::atom()]}</v>
 	<v>SrpHostParams = {host, [Verifier::binary(), Generator::binary(), Prime::binary(), Version::atom()]}</v>
 	<v>PublicKey =  dh_public() | ecdh_public() | srp_public() </v>
-	<v>PrivKeyIn = undefined | dh_private() | srp_private() </v>
+	<v>PrivKeyIn = undefined | dh_private() | ecdh_private() | srp_private() </v>
 	<v>PrivKeyOut =  dh_private() | ecdh_private() | srp_private() </v>
       </type>
       <desc>
diff --git a/lib/crypto/src/crypto.erl b/lib/crypto/src/crypto.erl
index e1fbbf9ab8..e8845ed52f 100644
--- a/lib/crypto/src/crypto.erl
+++ b/lib/crypto/src/crypto.erl
@@ -211,7 +211,7 @@ supports()->
     [{hashs, Hashs},
      {ciphers, [des_cbc, des_cfb, des3_cbc, des_ede3, blowfish_cbc,
 		blowfish_cfb64, blowfish_ofb64, blowfish_ecb, aes_cbc128, aes_cfb8, aes_cfb128,
-		aes_cbc256, rc2_cbc, aes_ctr, rc4] ++ Ciphers},
+		aes_cbc256, rc2_cbc, aes_ctr, rc4, aes_ecb] ++ Ciphers},
      {public_keys, [rsa, dss, dh, srp] ++ PubKeys}
     ].
 
@@ -282,7 +282,8 @@ hmac_final_n(_Context, _HashLen) -> ? nif_stub.
 
 -spec block_encrypt(des_cbc | des_cfb | des3_cbc | des3_cbf | des_ede3 | blowfish_cbc |
 		    blowfish_cfb64 | aes_cbc128 | aes_cfb8 | aes_cfb128 | aes_cbc256 | rc2_cbc,
-		    Key::iodata(), Ivec::binary(), Data::iodata()) -> binary().
+		    Key::iodata(), Ivec::binary(), Data::iodata()) -> binary();
+		   (aes_gcm | chacha20_poly1305, Key::iodata(), Ivec::binary(), {AAD::binary(), Data::iodata()}) -> {binary(), binary()}.
 
 block_encrypt(des_cbc, Key, Ivec, Data) ->
     des_cbc_encrypt(Key, Ivec, Data);
@@ -310,14 +311,25 @@ block_encrypt(aes_cfb8, Key, Ivec, Data) ->
     aes_cfb_8_encrypt(Key, Ivec, Data);
 block_encrypt(aes_cfb128, Key, Ivec, Data) ->
     aes_cfb_128_encrypt(Key, Ivec, Data);
+block_encrypt(aes_gcm, Key, Ivec, {AAD, Data}) ->
+    case aes_gcm_encrypt(Key, Ivec, AAD, Data) of
+	notsup -> erlang:error(notsup);
+	Return -> Return
+    end;
+block_encrypt(chacha20_poly1305, Key, Ivec, {AAD, Data}) ->
+    case chacha20_poly1305_encrypt(Key, Ivec, AAD, Data) of
+	notsup -> erlang:error(notsup);
+	Return -> Return
+    end;
 block_encrypt(rc2_cbc, Key, Ivec, Data) ->
     rc2_cbc_encrypt(Key, Ivec, Data).
 
 -spec block_decrypt(des_cbc | des_cfb | des3_cbc | des3_cbf | des_ede3 | blowfish_cbc |
-	      blowfish_cfb64 | blowfish_ofb64  | aes_cbc128 | aes_cbc256 | aes_ige256 |
-          aes_cfb8 | aes_cfb128 | rc2_cbc,
-	      Key::iodata(), Ivec::binary(), Data::iodata()) -> binary().
-
+		    blowfish_cfb64 | blowfish_ofb64  | aes_cbc128 | aes_cbc256 | aes_ige256 |
+		    aes_cfb8 | aes_cfb128 | rc2_cbc,
+		    Key::iodata(), Ivec::binary(), Data::iodata()) -> binary();
+		   (aes_gcm | chacha20_poly1305, Key::iodata(), Ivec::binary(),
+		    {AAD::binary(), Data::iodata(), Tag::binary()}) -> binary() | error.
 block_decrypt(des_cbc, Key, Ivec, Data) ->
     des_cbc_decrypt(Key, Ivec, Data);
 block_decrypt(des_cfb, Key, Ivec, Data) ->
@@ -344,22 +356,36 @@ block_decrypt(aes_cfb8, Key, Ivec, Data) ->
     aes_cfb_8_decrypt(Key, Ivec, Data);
 block_decrypt(aes_cfb128, Key, Ivec, Data) ->
     aes_cfb_128_decrypt(Key, Ivec, Data);
+block_decrypt(aes_gcm, Key, Ivec, {AAD, Data, Tag}) ->
+    case aes_gcm_decrypt(Key, Ivec, AAD, Data, Tag) of
+	notsup -> erlang:error(notsup);
+	Return -> Return
+    end;
+block_decrypt(chacha20_poly1305, Key, Ivec, {AAD, Data, Tag}) ->
+    case chacha20_poly1305_decrypt(Key, Ivec, AAD, Data, Tag) of
+	notsup -> erlang:error(notsup);
+	Return -> Return
+    end;
 block_decrypt(rc2_cbc, Key, Ivec, Data) ->
     rc2_cbc_decrypt(Key, Ivec, Data).
 
--spec block_encrypt(des_ecb | blowfish_ecb, Key::iodata(), Data::iodata()) -> binary().
+-spec block_encrypt(des_ecb | blowfish_ecb | aes_ecb, Key::iodata(), Data::iodata()) -> binary().
 
 block_encrypt(des_ecb, Key, Data) ->
     des_ecb_encrypt(Key, Data);
 block_encrypt(blowfish_ecb, Key, Data) ->
-    blowfish_ecb_encrypt(Key, Data).
+    blowfish_ecb_encrypt(Key, Data);
+block_encrypt(aes_ecb, Key, Data) ->
+    aes_ecb_encrypt(Key, Data).       
 
--spec block_decrypt(des_ecb | blowfish_ecb, Key::iodata(), Data::iodata()) -> binary().
+-spec block_decrypt(des_ecb | blowfish_ecb | aes_ecb, Key::iodata(), Data::iodata()) -> binary().
 
 block_decrypt(des_ecb, Key, Data) ->
     des_ecb_decrypt(Key, Data);
 block_decrypt(blowfish_ecb, Key, Data) ->
-    blowfish_ecb_decrypt(Key, Data).
+    blowfish_ecb_decrypt(Key, Data);
+block_decrypt(aes_ecb, Key, Data) ->
+    aes_ecb_decrypt(Key, Data).       
 
 -spec next_iv(des_cbc | des3_cbc | aes_cbc | aes_ige, Data::iodata()) -> binary().
 
@@ -567,9 +593,8 @@ generate_key(srp, {user, [Generator, Prime, Version]}, PrivateArg)
 	      end,
     user_srp_gen_key(Private, Generator, Prime);
 
-generate_key(ecdh, Curve, undefined) ->
-    ec_key_generate(nif_curve_params(Curve)).
-
+generate_key(ecdh, Curve, PrivKey) ->
+    ec_key_generate(nif_curve_params(Curve), ensure_int_as_bin(PrivKey)).
 
 compute_key(dh, OthersPublicKey, MyPrivateKey, DHParameters) ->
     case dh_compute_key_nif(ensure_int_as_bin(OthersPublicKey),
@@ -1190,6 +1215,17 @@ aes_cfb_128_decrypt(Key, IVec, Data) ->
 
 aes_cfb_128_crypt(_Key, _IVec, _Data, _IsEncrypt) -> ?nif_stub.     
 
+%%
+%% AES - in Galois/Counter Mode (GCM)
+%%
+aes_gcm_encrypt(_Key, _Ivec, _AAD, _In) -> ?nif_stub.
+aes_gcm_decrypt(_Key, _Ivec, _AAD, _In, _Tag) -> ?nif_stub.
+
+%%
+%% Chacha20/Ppoly1305
+%%
+chacha20_poly1305_encrypt(_Key, _Ivec, _AAD, _In) -> ?nif_stub.
+chacha20_poly1305_decrypt(_Key, _Ivec, _AAD, _In, _Tag) -> ?nif_stub.
 
 %%
 %% DES - in cipher block chaining mode (CBC)
@@ -1361,6 +1397,18 @@ aes_ctr_encrypt(_Key, _IVec, _Data) -> ?nif_stub.
 aes_ctr_decrypt(_Key, _IVec, _Cipher) -> ?nif_stub.
 
 %%
+%% AES - in electronic codebook mode (ECB)
+%%
+aes_ecb_encrypt(Key, Data) ->
+    aes_ecb_crypt(Key, Data, true).
+
+aes_ecb_decrypt(Key, Data) ->
+    aes_ecb_crypt(Key, Data, false).
+
+aes_ecb_crypt(_Key, __Data, _IsEncrypt) -> ?nif_stub.
+
+
+%%
 %% AES - in counter mode (CTR) with state maintained for multi-call streaming 
 %%
 -type ctr_state() :: { iodata(), binary(), binary(), integer() }.
@@ -1523,7 +1571,7 @@ dh_compute_key(OthersPublicKey, MyPrivateKey, DHParameters) ->
 
 dh_compute_key_nif(_OthersPublicKey, _MyPrivateKey, _DHParameters) -> ?nif_stub.
 
-ec_key_generate(_Key) -> ?nif_stub.
+ec_key_generate(_Curve, _Key) -> ?nif_stub.
 
 ecdh_compute_key_nif(_Others, _Curve, _My) -> ?nif_stub.
 
diff --git a/lib/crypto/test/crypto_SUITE.erl b/lib/crypto/test/crypto_SUITE.erl
index 53e29af338..ff7af1f2c1 100644
--- a/lib/crypto/test/crypto_SUITE.erl
+++ b/lib/crypto/test/crypto_SUITE.erl
@@ -58,10 +58,13 @@ all() ->
      {group, aes_cfb8},
      {group, aes_cfb128},
      {group, aes_cbc256},
+     {group, aes_ecb},
      {group, aes_ige256},
      {group, rc2_cbc},
      {group, rc4}, 
      {group, aes_ctr},
+     {group, aes_gcm},
+     {group, chacha20_poly1305},
      mod_pow,
      exor,
      rand_uniform
@@ -82,7 +85,7 @@ groups() ->
      {dss, [], [sign_verify]},
      {ecdsa, [], [sign_verify]},
      {dh, [], [generate_compute]},
-     {ecdh, [], [compute]},
+     {ecdh, [], [compute, generate]},
      {srp, [], [generate_compute]},
      {des_cbc, [], [block]},
      {des_cfb, [], [block]},
@@ -94,13 +97,16 @@ groups() ->
      {aes_cfb8,[], [block]},
      {aes_cfb128,[], [block]},
      {aes_cbc256,[], [block]},
+     {aes_ecb,[], [block]},
      {aes_ige256,[], [block]},
      {blowfish_cbc, [], [block]},
      {blowfish_ecb, [], [block]},
      {blowfish_cfb64, [], [block]},
      {blowfish_ofb64,[], [block]},
      {rc4, [], [stream]}, 
-     {aes_ctr, [], [stream]}
+     {aes_ctr, [], [stream]},
+     {aes_gcm, [], [aead]},
+     {chacha20_poly1305, [], [aead]}
     ].
 
 %%-------------------------------------------------------------------
@@ -203,6 +209,14 @@ stream(Config) when is_list(Config) ->
     lists:foreach(fun stream_cipher/1, stream_iolistify(Streams)),
     lists:foreach(fun stream_cipher_incment/1, stream_iolistify(Streams)).
 
+%%--------------------------------------------------------------------
+aead() ->
+      [{doc, "Test AEAD ciphers"}].
+aead(Config) when is_list(Config) ->
+    AEADs = lazy_eval(proplists:get_value(aead, Config)),
+
+    lists:foreach(fun aead_cipher/1, AEADs).
+
 %%-------------------------------------------------------------------- 
 sign_verify() ->
      [{doc, "Sign/verify digital signatures"}].
@@ -231,6 +245,12 @@ compute(Config) when is_list(Config) ->
     Gen = proplists:get_value(compute, Config),
     lists:foreach(fun do_compute/1, Gen).
 %%--------------------------------------------------------------------
+generate() ->
+     [{doc, " Test crypto:generate_key"}].
+generate(Config) when is_list(Config) ->
+    Gen = proplists:get_value(generate, Config),
+    lists:foreach(fun do_generate/1, Gen).
+%%--------------------------------------------------------------------
 mod_pow() ->
     [{doc, "mod_pow testing (A ^ M % P with bignums)"}].
 mod_pow(Config) when is_list(Config) ->
@@ -406,7 +426,22 @@ stream_cipher_incment(_State, OrigState, [], Acc, Plain) ->
 stream_cipher_incment(State0, OrigState, [PlainText | PlainTexts], Acc, Plain) ->
     {State, CipherText} = crypto:stream_encrypt(State0, PlainText),
     stream_cipher_incment(State, OrigState, PlainTexts, [CipherText | Acc], Plain).
-	
+
+aead_cipher({Type, Key, PlainText, IV, AAD, CipherText, CipherTag}) ->
+    Plain = iolist_to_binary(PlainText),
+    case crypto:block_encrypt(Type, Key, IV, {AAD, Plain}) of
+	{CipherText, CipherTag} ->
+	    ok;
+	Other0 ->
+	    ct:fail({{crypto, block_encrypt, [Plain, PlainText]}, {expected, {CipherText, CipherTag}}, {got, Other0}})
+    end,
+    case crypto:block_decrypt(Type, Key, IV, {AAD, CipherText, CipherTag}) of
+	Plain ->
+	    ok;
+	Other1 ->
+	    ct:fail({{crypto, block_decrypt, [CipherText]}, {expected, Plain}, {got, Other1}})
+    end.
+
 do_sign_verify({Type, Hash, Public, Private, Msg}) ->
     Signature = crypto:sign(Type, Hash, Msg, Private),
     case crypto:verify(Type, Hash, Msg, Signature, Public) of
@@ -467,6 +502,14 @@ do_compute({ecdh = Type, Pub, Priv, Curve, SharedSecret}) ->
 	     ct:fail({{crypto, compute_key, [Type, Pub, Priv, Curve]}, {expected, SharedSecret}, {got, Other}})
      end.
 
+do_generate({ecdh = Type, Curve, Priv, Pub}) ->
+    case crypto:generate_key(Type, Curve, Priv) of
+	{Pub, _} ->
+	    ok;
+	{Other, _} ->
+	    ct:fail({{crypto, generate_key, [Type, Priv, Curve]}, {expected, Pub}, {got, Other}})
+    end.
+
 hexstr2point(X, Y) ->
     <<4:8, (hexstr2bin(X))/binary, (hexstr2bin(Y))/binary>>.
 
@@ -694,7 +737,8 @@ group_config(srp, Config) ->
     [{generate_compute, GenerateCompute} | Config];
 group_config(ecdh, Config) ->
     Compute = ecdh(),
-    [{compute, Compute} | Config];
+    Generate = ecc(),
+    [{compute, Compute}, {generate, Generate} | Config];
 group_config(dh, Config) ->
     GenerateCompute = [dh()],
     [{generate_compute, GenerateCompute} | Config];
@@ -722,6 +766,9 @@ group_config(aes_cbc128, Config) ->
 group_config(aes_cbc256, Config) ->
     Block = aes_cbc256(),
     [{block, Block} | Config];
+group_config(aes_ecb, Config) ->
+    Block = aes_ecb(),
+    [{block, Block} | Config];    
 group_config(aes_ige256, Config) ->
     Block = aes_ige256(),
     [{block, Block} | Config];
@@ -749,6 +796,12 @@ group_config(rc4, Config) ->
 group_config(aes_ctr, Config) ->
     Stream = aes_ctr(),
     [{stream, Stream} | Config];
+group_config(aes_gcm, Config) ->
+    AEAD = aes_gcm(),
+    [{aead, AEAD} | Config];
+group_config(chacha20_poly1305, Config) ->
+    AEAD = chacha20_poly1305(),
+    [{aead, AEAD} | Config];
 group_config(_, Config) ->
     Config.
 
@@ -1150,6 +1203,106 @@ aes_cbc256() ->
        hexstr2bin("f69f2445df4f9b17ad2b417be66c3710")}
      ].
 
+aes_ecb() -> 
+    [
+     {aes_ecb,
+      <<"YELLOW SUBMARINE">>, 
+      <<"YELLOW SUBMARINE">>},
+     {aes_ecb,
+      <<"0000000000000000">>, 
+      <<"0000000000000000">>},
+     {aes_ecb,
+      <<"FFFFFFFFFFFFFFFF">>, 
+      <<"FFFFFFFFFFFFFFFF">>},
+     {aes_ecb,
+      <<"3000000000000000">>, 
+      <<"1000000000000001">>},
+     {aes_ecb,
+      <<"1111111111111111">>, 
+      <<"1111111111111111">>},
+     {aes_ecb,
+      <<"0123456789ABCDEF">>, 
+      <<"1111111111111111">>},
+     {aes_ecb,
+      <<"0000000000000000">>, 
+      <<"0000000000000000">>},
+     {aes_ecb,
+      <<"FEDCBA9876543210">>, 
+      <<"0123456789ABCDEF">>},
+     {aes_ecb,
+      <<"7CA110454A1A6E57">>, 
+      <<"01A1D6D039776742">>},
+     {aes_ecb,
+      <<"0131D9619DC1376E">>, 
+      <<"5CD54CA83DEF57DA">>},
+     {aes_ecb,
+      <<"07A1133E4A0B2686">>, 
+      <<"0248D43806F67172">>},
+     {aes_ecb,
+      <<"3849674C2602319E">>, 
+      <<"51454B582DDF440A">>},
+     {aes_ecb,
+      <<"04B915BA43FEB5B6">>, 
+      <<"42FD443059577FA2">>},
+     {aes_ecb,
+      <<"0113B970FD34F2CE">>, 
+      <<"059B5E0851CF143A">>},
+     {aes_ecb,
+      <<"0170F175468FB5E6">>, 
+      <<"0756D8E0774761D2">>},
+     {aes_ecb,
+      <<"43297FAD38E373FE">>, 
+      <<"762514B829BF486A">>},
+     {aes_ecb,
+      <<"07A7137045DA2A16">>, 
+      <<"3BDD119049372802">>},
+     {aes_ecb,
+      <<"04689104C2FD3B2F">>, 
+      <<"26955F6835AF609A">>},
+     {aes_ecb,
+      <<"37D06BB516CB7546">>, 
+      <<"164D5E404F275232">>},
+     {aes_ecb,
+      <<"1F08260D1AC2465E">>, 
+      <<"6B056E18759F5CCA">>},
+     {aes_ecb,
+      <<"584023641ABA6176">>, 
+      <<"004BD6EF09176062">>},
+     {aes_ecb,
+      <<"025816164629B007">>, 
+      <<"480D39006EE762F2">>},
+     {aes_ecb,
+      <<"49793EBC79B3258F">>, 
+      <<"437540C8698F3CFA">>},
+     {aes_ecb,
+      <<"018310DC409B26D6">>, 
+      <<"1D9D5C5018F728C2">>},
+     {aes_ecb,
+      <<"1C587F1C13924FEF">>, 
+      <<"305532286D6F295A">>},
+     {aes_ecb,
+      <<"0101010101010101">>, 
+      <<"0123456789ABCDEF">>},
+     {aes_ecb,
+      <<"1F1F1F1F0E0E0E0E">>, 
+      <<"0123456789ABCDEF">>},
+     {aes_ecb,
+      <<"E0FEE0FEF1FEF1FE">>, 
+      <<"0123456789ABCDEF">>},
+     {aes_ecb,
+      <<"0000000000000000">>, 
+      <<"FFFFFFFFFFFFFFFF">>},
+     {aes_ecb,
+      <<"FFFFFFFFFFFFFFFF">>, 
+      <<"0000000000000000">>},
+     {aes_ecb,
+      <<"0123456789ABCDEF">>, 
+      <<"0000000000000000">>},
+     {aes_ecb,
+      <<"FEDCBA9876543210">>, 
+      <<"FFFFFFFFFFFFFFFF">>}
+    ].
+
 aes_ige256() ->
     [{aes_ige256,
       hexstr2bin("603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4"),
@@ -1442,6 +1595,269 @@ aes_ctr() ->
 	long_msg()}
     ].
 
+
+%% AES GCM test vectors from http://csrc.nist.gov/groups/ST/toolkit/BCM/documents/proposedmodes/gcm/gcm-spec.pdf
+aes_gcm() ->
+    [
+     %% Test Case 1
+     {aes_gcm, hexstr2bin("00000000000000000000000000000000"),           %% Key
+      hexstr2bin(""),                                                    %% PlainText
+      hexstr2bin("000000000000000000000000"),                            %% IV
+      hexstr2bin(""),                                                    %% AAD
+      hexstr2bin(""),                                                    %% CipherText
+      hexstr2bin("58e2fccefa7e3061367f1d57a4e7455a")},                   %% CipherTag
+
+     %% Test Case 2
+     {aes_gcm, hexstr2bin("00000000000000000000000000000000"),           %% Key
+      hexstr2bin("00000000000000000000000000000000"),                    %% PlainText
+      hexstr2bin("000000000000000000000000"),                            %% IV
+      hexstr2bin(""),                                                    %% AAD
+      hexstr2bin("0388dace60b6a392f328c2b971b2fe78"),                    %% CipherText
+      hexstr2bin("ab6e47d42cec13bdf53a67b21257bddf")},                   %% CipherTag
+
+     %% Test Case 3
+     {aes_gcm, hexstr2bin("feffe9928665731c6d6a8f9467308308"),           %% Key
+      hexstr2bin("d9313225f88406e5a55909c5aff5269a"                      %% PlainText
+		 "86a7a9531534f7da2e4c303d8a318a72"
+		 "1c3c0c95956809532fcf0e2449a6b525"
+		 "b16aedf5aa0de657ba637b391aafd255"),
+      hexstr2bin("cafebabefacedbaddecaf888"),                            %% IV
+      hexstr2bin(""),                                                    %% AAD
+      hexstr2bin("42831ec2217774244b7221b784d0d49c"                      %% CipherText
+		 "e3aa212f2c02a4e035c17e2329aca12e"
+		 "21d514b25466931c7d8f6a5aac84aa05"
+		 "1ba30b396a0aac973d58e091473f5985"),
+      hexstr2bin("4d5c2af327cd64a62cf35abd2ba6fab4")},                   %% CipherTag
+
+     %% Test Case 4
+     {aes_gcm, hexstr2bin("feffe9928665731c6d6a8f9467308308"),           %% Key
+      hexstr2bin("d9313225f88406e5a55909c5aff5269a"                      %% PlainText
+		 "86a7a9531534f7da2e4c303d8a318a72"
+		 "1c3c0c95956809532fcf0e2449a6b525"
+		 "b16aedf5aa0de657ba637b39"),
+      hexstr2bin("cafebabefacedbaddecaf888"),                            %% IV
+      hexstr2bin("feedfacedeadbeeffeedfacedeadbeef"                      %% AAD
+		 "abaddad2"),
+      hexstr2bin("42831ec2217774244b7221b784d0d49c"                      %% CipherText
+		 "e3aa212f2c02a4e035c17e2329aca12e"
+		 "21d514b25466931c7d8f6a5aac84aa05"
+		 "1ba30b396a0aac973d58e091"),
+      hexstr2bin("5bc94fbc3221a5db94fae95ae7121a47")},                   %% CipherTag
+
+     %% Test Case 5
+     {aes_gcm, hexstr2bin("feffe9928665731c6d6a8f9467308308"),           %% Key
+      hexstr2bin("d9313225f88406e5a55909c5aff5269a"                      %% PlainText
+		 "86a7a9531534f7da2e4c303d8a318a72"
+		 "1c3c0c95956809532fcf0e2449a6b525"
+		 "b16aedf5aa0de657ba637b39"),
+      hexstr2bin("cafebabefacedbad"),                                    %% IV
+      hexstr2bin("feedfacedeadbeeffeedfacedeadbeef"                      %% AAD
+		 "abaddad2"),
+      hexstr2bin("61353b4c2806934a777ff51fa22a4755"                      %% CipherText
+		 "699b2a714fcdc6f83766e5f97b6c7423"
+		 "73806900e49f24b22b097544d4896b42"
+		 "4989b5e1ebac0f07c23f4598"),
+      hexstr2bin("3612d2e79e3b0785561be14aaca2fccb")},                   %% CipherTag
+
+     %% Test Case 6"
+     {aes_gcm, hexstr2bin("feffe9928665731c6d6a8f9467308308"),           %% Key
+      hexstr2bin("d9313225f88406e5a55909c5aff5269a"                      %% PlainText
+		 "86a7a9531534f7da2e4c303d8a318a72"
+		 "1c3c0c95956809532fcf0e2449a6b525"
+		 "b16aedf5aa0de657ba637b39"),
+      hexstr2bin("9313225df88406e555909c5aff5269aa"                      %% IV
+		 "6a7a9538534f7da1e4c303d2a318a728"
+		 "c3c0c95156809539fcf0e2429a6b5254"
+		 "16aedbf5a0de6a57a637b39b"),
+      hexstr2bin("feedfacedeadbeeffeedfacedeadbeef"                      %% AAD
+		 "abaddad2"),
+      hexstr2bin("8ce24998625615b603a033aca13fb894"                      %% CipherText
+		 "be9112a5c3a211a8ba262a3cca7e2ca7"
+		 "01e4a9a4fba43c90ccdcb281d48c7c6f"
+		 "d62875d2aca417034c34aee5"),
+      hexstr2bin("619cc5aefffe0bfa462af43c1699d050")},                   %% CipherTag
+
+     %% Test Case 7
+     {aes_gcm, hexstr2bin("00000000000000000000000000000000"             %% Key
+			  "0000000000000000"),
+      hexstr2bin(""),                                                    %% PlainText
+      hexstr2bin("000000000000000000000000"),                            %% IV
+      hexstr2bin(""),                                                    %% AAD
+      hexstr2bin(""),                                                    %% CipherText
+      hexstr2bin("cd33b28ac773f74ba00ed1f312572435")},                   %% CipherTag
+
+     %% Test Case 8
+     {aes_gcm, hexstr2bin("00000000000000000000000000000000"             %% Key
+			  "0000000000000000"),
+      hexstr2bin("00000000000000000000000000000000"),                    %% PlainText
+      hexstr2bin("000000000000000000000000"),                            %% IV
+      hexstr2bin(""),                                                    %% AAD
+      hexstr2bin("98e7247c07f0fe411c267e4384b0f600"),                    %% CipherText
+      hexstr2bin("2ff58d80033927ab8ef4d4587514f0fb")},                   %% CipherTag
+
+     %% Test Case 9
+     {aes_gcm, hexstr2bin("feffe9928665731c6d6a8f9467308308"             %% Key
+			  "feffe9928665731c"),
+      hexstr2bin("d9313225f88406e5a55909c5aff5269a"                      %% PlainText
+		 "86a7a9531534f7da2e4c303d8a318a72"
+		 "1c3c0c95956809532fcf0e2449a6b525"
+		 "b16aedf5aa0de657ba637b391aafd255"),
+      hexstr2bin("cafebabefacedbaddecaf888"),                            %% IV
+      hexstr2bin(""),                                                    %% ADD
+      hexstr2bin("3980ca0b3c00e841eb06fac4872a2757"                      %% CipherText
+		 "859e1ceaa6efd984628593b40ca1e19c"
+		 "7d773d00c144c525ac619d18c84a3f47"
+		 "18e2448b2fe324d9ccda2710acade256"),
+      hexstr2bin("9924a7c8587336bfb118024db8674a14")},                   %% CipherTag
+
+     %% Test Case 10
+     {aes_gcm, hexstr2bin("feffe9928665731c6d6a8f9467308308"             %% Key
+			  "feffe9928665731c"),
+      hexstr2bin("d9313225f88406e5a55909c5aff5269a"                      %% PlainText
+		 "86a7a9531534f7da2e4c303d8a318a72"
+		 "1c3c0c95956809532fcf0e2449a6b525"
+		 "b16aedf5aa0de657ba637b39"),
+      hexstr2bin("cafebabefacedbaddecaf888"),                            %% IV
+      hexstr2bin("feedfacedeadbeeffeedfacedeadbeef"                      %% AAD
+		 "abaddad2"),
+      hexstr2bin("3980ca0b3c00e841eb06fac4872a2757"                      %% CipherText
+		 "859e1ceaa6efd984628593b40ca1e19c"
+		 "7d773d00c144c525ac619d18c84a3f47"
+		 "18e2448b2fe324d9ccda2710"),
+      hexstr2bin("2519498e80f1478f37ba55bd6d27618c")},                   %% CipherTag
+
+     %% Test Case 11
+     {aes_gcm, hexstr2bin("feffe9928665731c6d6a8f9467308308"             %% Key
+			  "feffe9928665731c"),
+      hexstr2bin("d9313225f88406e5a55909c5aff5269a"                      %% PlainText
+		 "86a7a9531534f7da2e4c303d8a318a72"
+		 "1c3c0c95956809532fcf0e2449a6b525"
+		 "b16aedf5aa0de657ba637b39"),
+      hexstr2bin("cafebabefacedbad"),                                    %% IV
+      hexstr2bin("feedfacedeadbeeffeedfacedeadbeef"                      %% AAD
+		 "abaddad2"),
+      hexstr2bin("0f10f599ae14a154ed24b36e25324db8"                      %% CipherText
+		 "c566632ef2bbb34f8347280fc4507057"
+		 "fddc29df9a471f75c66541d4d4dad1c9"
+		 "e93a19a58e8b473fa0f062f7"),
+      hexstr2bin("65dcc57fcf623a24094fcca40d3533f8")},                   %% CipherTag
+
+     %% Test Case 12
+     {aes_gcm, hexstr2bin("feffe9928665731c6d6a8f9467308308"             %% Key
+		 "feffe9928665731c"),
+      hexstr2bin("d9313225f88406e5a55909c5aff5269a"                      %% PlainText
+		 "86a7a9531534f7da2e4c303d8a318a72"
+		 "1c3c0c95956809532fcf0e2449a6b525"
+		 "b16aedf5aa0de657ba637b39"),
+      hexstr2bin("9313225df88406e555909c5aff5269aa"                      %% IV
+		 "6a7a9538534f7da1e4c303d2a318a728"
+		 "c3c0c95156809539fcf0e2429a6b5254"
+		 "16aedbf5a0de6a57a637b39b"),
+      hexstr2bin("feedfacedeadbeeffeedfacedeadbeef"                      %% AAD
+		 "abaddad2"),
+      hexstr2bin("d27e88681ce3243c4830165a8fdcf9ff"                      %% CipherText
+		 "1de9a1d8e6b447ef6ef7b79828666e45"
+		 "81e79012af34ddd9e2f037589b292db3"
+		 "e67c036745fa22e7e9b7373b"),
+      hexstr2bin("dcf566ff291c25bbb8568fc3d376a6d9")},                   %% CipherTag
+
+     %% Test Case 13
+     {aes_gcm, hexstr2bin("00000000000000000000000000000000"             %% Key
+			  "00000000000000000000000000000000"),
+      hexstr2bin(""),                                                    %% PlainText
+      hexstr2bin("000000000000000000000000"),                            %% IV
+      hexstr2bin(""),                                                    %% AAD
+      hexstr2bin(""),                                                    %% CipherText
+      hexstr2bin("530f8afbc74536b9a963b4f1c4cb738b")},                   %% CipherTag
+
+     %% Test Case 14
+     {aes_gcm, hexstr2bin("00000000000000000000000000000000"             %% Key
+			  "00000000000000000000000000000000"),
+      hexstr2bin("00000000000000000000000000000000"),                    %% PlainText
+      hexstr2bin("000000000000000000000000"),                            %% IV
+      hexstr2bin(""),                                                    %% AAD
+      hexstr2bin("cea7403d4d606b6e074ec5d3baf39d18"),                    %% CipherText
+      hexstr2bin("d0d1c8a799996bf0265b98b5d48ab919")},                   %% CipherTag
+
+     %% Test Case 15
+     {aes_gcm, hexstr2bin("feffe9928665731c6d6a8f9467308308"             %% Key
+			  "feffe9928665731c6d6a8f9467308308"),
+      hexstr2bin("d9313225f88406e5a55909c5aff5269a"                      %% PlainText
+		 "86a7a9531534f7da2e4c303d8a318a72"
+		 "1c3c0c95956809532fcf0e2449a6b525"
+		 "b16aedf5aa0de657ba637b391aafd255"),
+      hexstr2bin("cafebabefacedbaddecaf888"),                            %% IV
+      hexstr2bin(""),                                                    %% AAD
+      hexstr2bin("522dc1f099567d07f47f37a32a84427d"                      %% CipherText
+		 "643a8cdcbfe5c0c97598a2bd2555d1aa"
+		 "8cb08e48590dbb3da7b08b1056828838"
+		 "c5f61e6393ba7a0abcc9f662898015ad"),
+      hexstr2bin("b094dac5d93471bdec1a502270e3cc6c")},                   %% CipherTag
+
+     %% Test Case 16
+     {aes_gcm, hexstr2bin("feffe9928665731c6d6a8f9467308308"             %% Key
+			  "feffe9928665731c6d6a8f9467308308"),
+      hexstr2bin("d9313225f88406e5a55909c5aff5269a"                      %% PlainText
+		 "86a7a9531534f7da2e4c303d8a318a72"
+		 "1c3c0c95956809532fcf0e2449a6b525"
+		 "b16aedf5aa0de657ba637b39"),
+      hexstr2bin("cafebabefacedbaddecaf888"),                            %% IV
+      hexstr2bin("feedfacedeadbeeffeedfacedeadbeef"                      %% AAD
+		 "abaddad2"),
+      hexstr2bin("522dc1f099567d07f47f37a32a84427d"                      %% CipherText
+		 "643a8cdcbfe5c0c97598a2bd2555d1aa"
+		 "8cb08e48590dbb3da7b08b1056828838"
+		 "c5f61e6393ba7a0abcc9f662"),
+      hexstr2bin("76fc6ece0f4e1768cddf8853bb2d551b")},                   %% CipherTag
+
+     %% Test Case 17
+     {aes_gcm, hexstr2bin("feffe9928665731c6d6a8f9467308308"             %% Key
+			  "feffe9928665731c6d6a8f9467308308"),
+      hexstr2bin("d9313225f88406e5a55909c5aff5269a"                      %% PlainText
+		 "86a7a9531534f7da2e4c303d8a318a72"
+		 "1c3c0c95956809532fcf0e2449a6b525"
+		 "b16aedf5aa0de657ba637b39"),
+      hexstr2bin("cafebabefacedbad"),                                    %% IV
+      hexstr2bin("feedfacedeadbeeffeedfacedeadbeef"                      %% AAD
+		 "abaddad2"),
+      hexstr2bin("c3762df1ca787d32ae47c13bf19844cb"                      %% CipherText
+		 "af1ae14d0b976afac52ff7d79bba9de0"
+		 "feb582d33934a4f0954cc2363bc73f78"
+		 "62ac430e64abe499f47c9b1f"),
+      hexstr2bin("3a337dbf46a792c45e454913fe2ea8f2")},                   %% CipherTag
+
+     %% Test Case 18
+     {aes_gcm, hexstr2bin("feffe9928665731c6d6a8f9467308308"             %% Key
+			  "feffe9928665731c6d6a8f9467308308"),
+      hexstr2bin("d9313225f88406e5a55909c5aff5269a"                      %% PlainText
+		 "86a7a9531534f7da2e4c303d8a318a72"
+		 "1c3c0c95956809532fcf0e2449a6b525"
+		 "b16aedf5aa0de657ba637b39"),
+      hexstr2bin("9313225df88406e555909c5aff5269aa"                      %% IV
+		 "6a7a9538534f7da1e4c303d2a318a728"
+		 "c3c0c95156809539fcf0e2429a6b5254"
+		 "16aedbf5a0de6a57a637b39b"),
+      hexstr2bin("feedfacedeadbeeffeedfacedeadbeef"                      %% AAD
+		 "abaddad2"),
+      hexstr2bin("5a8def2f0c9e53f1f75d7853659e2a20"                      %% CipherText
+		 "eeb2b22aafde6419a058ab4f6f746bf4"
+		 "0fc0c3b780f244452da3ebf1c5d82cde"
+		 "a2418997200ef82e44ae7e3f"),
+      hexstr2bin("a44a8266ee1c8eb0c8b5d4cf5ae9f19a")}                    %% CipherTag
+    ].
+
+%% http://tools.ietf.org/html/draft-agl-tls-chacha20poly1305-04
+chacha20_poly1305() ->
+    [
+     {chacha20_poly1305, hexstr2bin("4290bcb154173531f314af57f3be3b500"  %% Key
+				    "6da371ece272afa1b5dbdd1100a1007"),
+      hexstr2bin("86d09974840bded2a5ca"),                                %% PlainText
+      hexstr2bin("cd7cf67be39c794a"),                                    %% Nonce
+      hexstr2bin("87e229d4500845a079c0"),                                %% AAD
+      hexstr2bin("e3e446f7ede9a19b62a4"),                                %% CipherText
+      hexstr2bin("677dabf4e3d24b876bb284753896e1d6")}                   %% CipherTag
+    ].
+
 rsa_plain() ->
     <<"7896345786348756234 Hejsan Svejsan, erlang crypto debugger"
       "09812312908312378623487263487623412039812 huagasd">>.
@@ -1468,8 +1884,9 @@ dss_params() ->
      18320614775012672475365915366944922415598782131828709277168615511695849821411624805195787607930033958243224786899641459701930253094446221381818858674389863050420226114787005820357372837321561754462061849169568607689530279303056075793886577588606958623645901271866346406773590024901668622321064384483571751669].
 
 ec_key_named() ->
-    {D2_pub, D2_priv} = crypto:generate_key(ecdh, sect113r2),
-    {[D2_priv, sect113r2], [D2_pub, sect113r2]}.  
+    Curve = secp112r2,
+    {D2_pub, D2_priv} = crypto:generate_key(ecdh, Curve),
+    {[D2_priv, Curve], [D2_pub, Curve]}.
 
 ec_msg() ->
     <<99,234,6,64,190,237,201,99,80,248,58,40,70,45,149,218,5,246,242,63>>.
@@ -1736,6 +2153,27 @@ rsa_oaep() ->
     Msg =  hexstr2bin("750c4047f547e8e41411856523298ac9bae245efaf1397fbe56f9dd5"),
     {rsa, Public, Private, Msg, rsa_pkcs1_oaep_padding}.
 
+ecc() ->
+%%               http://point-at-infinity.org/ecc/nisttv
+%%
+%% Test vectors for the NIST elliptic curves P192, P224, P256, P384, P521,
+%% B163, B233, B283, B409, B571, K163, K233, K283, K409 and K571. For more
+%% information about the curves see
+%%       http://csrc.nist.gov/encryption/dss/ecdsa/NISTReCur.pdf
+%%
+    [{ecdh,secp192r1,1,
+      hexstr2point("188DA80EB03090F67CBF20EB43A18800F4FF0AFD82FF1012",
+		   "07192B95FFC8DA78631011ED6B24CDD573F977A11E794811")},
+     {ecdh,secp192r1,2,
+      hexstr2point("DAFEBF5828783F2AD35534631588A3F629A70FB16982A888",
+		   "DD6BDA0D993DA0FA46B27BBC141B868F59331AFA5C7E93AB")},
+     {ecdh,secp192r1,3,
+      hexstr2point("76E32A2557599E6EDCD283201FB2B9AADFD0D359CBB263DA",
+		   "782C37E372BA4520AA62E0FED121D49EF3B543660CFD05FD")},
+     {ecdh,secp192r1,4,
+      hexstr2point("35433907297CC378B0015703374729D7A4FE46647084E4BA",
+		   "A2649984F2135C301EA3ACB0776CD4F125389B311DB3BE32")}].
+
 no_padding() ->
     Public = [_, Mod] = rsa_public(),
     Private = rsa_private(),
diff --git a/lib/crypto/test/old_crypto_SUITE.erl b/lib/crypto/test/old_crypto_SUITE.erl
index 040edbf092..80306927c5 100644
--- a/lib/crypto/test/old_crypto_SUITE.erl
+++ b/lib/crypto/test/old_crypto_SUITE.erl
@@ -1887,9 +1887,9 @@ ec(Config) when is_list(Config) ->
 
 ec_do() ->
     %% test for a name curve
-    {D2_pub, D2_priv} = crypto:generate_key(ecdh, sect113r2),
-    PrivECDH = [D2_priv, sect113r2],
-    PubECDH = [D2_pub, sect113r2],
+    {D2_pub, D2_priv} = crypto:generate_key(ecdh, secp112r2),
+    PrivECDH = [D2_priv, secp112r2],
+    PubECDH = [D2_pub, secp112r2],
     %%TODO: find a published test case for a EC key
 
     %% test for a full specified curve and public key,
diff --git a/lib/crypto/vsn.mk b/lib/crypto/vsn.mk
index 8489b59562..55b1b3e8c4 100644
--- a/lib/crypto/vsn.mk
+++ b/lib/crypto/vsn.mk
@@ -1 +1 @@
-CRYPTO_VSN = 3.5
+CRYPTO_VSN = 3.6
diff --git a/lib/debugger/src/dbg_icmd.erl b/lib/debugger/src/dbg_icmd.erl
index ce12c1beb3..b9d7506cde 100644
--- a/lib/debugger/src/dbg_icmd.erl
+++ b/lib/debugger/src/dbg_icmd.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1998-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1998-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
diff --git a/lib/debugger/src/dbg_ieval.erl b/lib/debugger/src/dbg_ieval.erl
index 96f9f91808..e6da8409d4 100644
--- a/lib/debugger/src/dbg_ieval.erl
+++ b/lib/debugger/src/dbg_ieval.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1998-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1998-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -650,24 +650,19 @@ expr({tuple,Line,Es0}, Bs0, Ieval) ->
     {value,list_to_tuple(Vs),Bs};
 
 %% Map
-expr({map,Line,Fs0}, Bs0, Ieval) ->
-    {Fs,Bs} = eval_map_fields(Fs0, Bs0, Ieval#ieval{line=Line,top=false}),
-    Value = lists:foldl(fun ({map_assoc,K,V}, Mi) -> maps:put(K,V,Mi) end,
-                        #{}, Fs),
-    {value,Value,Bs};
+expr({map,Line,Fs}, Bs0, Ieval) ->
+    {Map,Bs} = eval_new_map_fields(Fs, Bs0, Ieval#ieval{line=Line,top=false},
+				   fun expr/3),
+    {value,Map,Bs};
 expr({map,Line,E0,Fs0}, Bs0, Ieval0) ->
     Ieval = Ieval0#ieval{line=Line,top=false},
     {value,E,Bs1} = expr(E0, Bs0, Ieval),
-    case E of
-        #{} ->
-            {Fs,Bs2} = eval_map_fields(Fs0, Bs0, Ieval),
-            Value = lists:foldl(fun ({map_assoc,K,V}, Mi) -> maps:put(K,V,Mi);
-                                    ({map_exact,K,V}, Mi) -> maps:update(K,V,Mi)
-                                end, E, Fs),
-            {value,Value,merge_bindings(Bs2, Bs1, Ieval)};
-        _ ->
-            exception(error, {badarg,E}, Bs1, Ieval)
-    end;
+    {Fs,Bs2} = eval_map_fields(Fs0, Bs0, Ieval),
+    _ = maps:put(k, v, E),			%Validate map.
+    Value = lists:foldl(fun ({map_assoc,K,V}, Mi) -> maps:put(K,V,Mi);
+			    ({map_exact,K,V}, Mi) -> maps:update(K,V,Mi)
+			end, E, Fs),
+    {value,Value,merge_bindings(Bs2, Bs1, Ieval)};
 %% A block of statements
 expr({block,Line,Es},Bs,Ieval) ->
     seq(Es, Bs, Ieval#ieval{line=Line});
@@ -1477,11 +1472,13 @@ guard_expr({cons,_,H0,T0}, Bs) ->
 guard_expr({tuple,_,Es0}, Bs) ->
     {values,Es} = guard_exprs(Es0, Bs),
     {value,list_to_tuple(Es)};
-guard_expr({map,_,Fs0}, Bs) ->
-    Fs = eval_map_fields_guard(Fs0, Bs),
-    Value = lists:foldl(fun ({map_assoc,K,V}, Mi) -> maps:put(K,V,Mi) end,
-                        #{}, Fs),
-    {value,Value};
+guard_expr({map,_,Fs}, Bs0) ->
+    F = fun (G0, B0, _) ->
+		{value,G} = guard_expr(G0, B0),
+		{value,G,B0}
+	end,
+    {Map,_} = eval_new_map_fields(Fs, Bs0, #ieval{top=false}, F),
+    {value,Map};
 guard_expr({map,_,E0,Fs0}, Bs) ->
     {value,E} = guard_expr(E0, Bs),
     Fs = eval_map_fields_guard(Fs0, Bs),
@@ -1530,6 +1527,17 @@ eval_map_fields([{map_field_exact,Line,K0,V0}|Fs], Bs0, Ieval0, F, Acc) ->
 eval_map_fields([], Bs, _Ieval, _F, Acc) ->
     {lists:reverse(Acc),Bs}.
 
+eval_new_map_fields(Fs, Bs0, Ieval, F) ->
+    eval_new_map_fields(Fs, Bs0, Ieval, F, []).
+
+eval_new_map_fields([{Line,K0,V0}|Fs], Bs0, Ieval0, F, Acc) ->
+    Ieval = Ieval0#ieval{line=Line},
+    {value,K,Bs1} = F(K0, Bs0, Ieval),
+    {value,V,Bs2} = F(V0, Bs1, Ieval),
+    eval_new_map_fields(Fs, Bs2, Ieval0, F, [{K,V}|Acc]);
+eval_new_map_fields([], Bs, _, _, Acc) ->
+    {maps:from_list(lists:reverse(Acc)),Bs}.
+
 %% match(Pattern,Term,Bs) -> {match,Bs} | nomatch
 match(Pat, Term, Bs) ->
     try match1(Pat, Term, Bs, Bs)
diff --git a/lib/debugger/src/dbg_iload.erl b/lib/debugger/src/dbg_iload.erl
index ad05a7c529..379ffe8ce4 100644
--- a/lib/debugger/src/dbg_iload.erl
+++ b/lib/debugger/src/dbg_iload.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1998-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1998-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -163,11 +163,11 @@ clauses([C0|Cs]) ->
     [C1|clauses(Cs)];
 clauses([]) -> [].
 
-clause({clause,Line,H0,G0,B0}, Lc) ->
+clause({clause,Anno,H0,G0,B0}, Lc) ->
     H1 = head(H0),
     G1 = guard(G0),
     B1 = exprs(B0, Lc),
-    {clause,Line,H1,G1,B1}.
+    {clause,ln(Anno),H1,G1,B1}.
 
 head(Ps) -> patterns(Ps).
 
@@ -181,46 +181,46 @@ patterns([]) -> [].
 
 %%  N.B. Only valid patterns are included here.
 
-pattern({var,Line,V}) -> {var,Line,V};
-pattern({char,Line,I}) -> {value,Line,I};
-pattern({integer,Line,I}) -> {value,Line,I};
-pattern({match,Line,Pat1,Pat2}) ->
-    {match,Line,pattern(Pat1),pattern(Pat2)};
-pattern({float,Line,F}) -> {value,Line,F};
-pattern({atom,Line,A}) -> {value,Line,A};
-pattern({string,Line,S}) -> {value,Line,S};
-pattern({nil,Line}) -> {value,Line,[]};
-pattern({cons,Line,H0,T0}) ->
+pattern({var,Anno,V}) -> {var,ln(Anno),V};
+pattern({char,Anno,I}) -> {value,ln(Anno),I};
+pattern({integer,Anno,I}) -> {value,ln(Anno),I};
+pattern({match,Anno,Pat1,Pat2}) ->
+    {match,ln(Anno),pattern(Pat1),pattern(Pat2)};
+pattern({float,Anno,F}) -> {value,ln(Anno),F};
+pattern({atom,Anno,A}) -> {value,ln(Anno),A};
+pattern({string,Anno,S}) -> {value,ln(Anno),S};
+pattern({nil,Anno}) -> {value,ln(Anno),[]};
+pattern({cons,Anno,H0,T0}) ->
     H1 = pattern(H0),
     T1 = pattern(T0),
-    {cons,Line,H1,T1};
-pattern({tuple,Line,Ps0}) ->
+    {cons,ln(Anno),H1,T1};
+pattern({tuple,Anno,Ps0}) ->
     Ps1 = pattern_list(Ps0),
-    {tuple,Line,Ps1};
-pattern({map,Line,Fs0}) ->
+    {tuple,ln(Anno),Ps1};
+pattern({map,Anno,Fs0}) ->
     Fs1 = lists:map(fun ({map_field_exact,L,K,V}) ->
                             {map_field_exact,L,expr(K, false),pattern(V)}
                     end, Fs0),
-    {map,Line,Fs1};
-pattern({op,_,'-',{integer,Line,I}}) ->
-    {value,Line,-I};
-pattern({op,_,'+',{integer,Line,I}}) ->
-    {value,Line,I};
-pattern({op,_,'-',{char,Line,I}}) ->
-    {value,Line,-I};
-pattern({op,_,'+',{char,Line,I}}) ->
-    {value,Line,I};
-pattern({op,_,'-',{float,Line,I}}) ->
-    {value,Line,-I};
-pattern({op,_,'+',{float,Line,I}}) ->
-    {value,Line,I};
-pattern({bin,Line,Grp}) ->
+    {map,ln(Anno),Fs1};
+pattern({op,_,'-',{integer,Anno,I}}) ->
+    {value,ln(Anno),-I};
+pattern({op,_,'+',{integer,Anno,I}}) ->
+    {value,ln(Anno),I};
+pattern({op,_,'-',{char,Anno,I}}) ->
+    {value,ln(Anno),-I};
+pattern({op,_,'+',{char,Anno,I}}) ->
+    {value,ln(Anno),I};
+pattern({op,_,'-',{float,Anno,I}}) ->
+    {value,ln(Anno),-I};
+pattern({op,_,'+',{float,Anno,I}}) ->
+    {value,ln(Anno),I};
+pattern({bin,Anno,Grp}) ->
     Grp1 = pattern_list(Grp),
-    {bin,Line,Grp1};
-pattern({bin_element,Line,Expr,Size,Type}) ->
+    {bin,ln(Anno),Grp1};
+pattern({bin_element,Anno,Expr,Size,Type}) ->
     Expr1 = pattern(Expr),
     Size1 = expr(Size, false),
-    {bin_element,Line,Expr1,Size1,Type}.
+    {bin_element,ln(Anno),Expr1,Size1,Type}.
 
 %%  These patterns are processed "in parallel" for purposes of variable
 %%  definition etc.
@@ -240,90 +240,89 @@ and_guard([G0|Gs]) ->
     [G1|and_guard(Gs)];
 and_guard([]) -> [].
 
-guard_test({call,Line,{remote,_,{atom,_,erlang},{atom,_,F}},As0}) ->
+guard_test({call,Anno,{remote,_,{atom,_,erlang},{atom,_,F}},As0}) ->
     As = gexpr_list(As0),
-    {safe_bif,Line,erlang,F,As};
-guard_test({op,Line,Op,L0}) ->
+    {safe_bif,ln(Anno),erlang,F,As};
+guard_test({op,Anno,Op,L0}) ->
     true = erl_internal:arith_op(Op, 1) orelse %Assertion.
 	erl_internal:bool_op(Op, 1),
     L1 = gexpr(L0),
-    {safe_bif,Line,erlang,Op,[L1]};
-guard_test({op,Line,Op,L0,R0}) when Op =:= 'andalso'; Op =:= 'orelse' ->
+    {safe_bif,ln(Anno),erlang,Op,[L1]};
+guard_test({op,Anno,Op,L0,R0}) when Op =:= 'andalso'; Op =:= 'orelse' ->
     L1 = gexpr(L0),
     R1 = gexpr(R0),				%They see the same variables
-    {Op,Line,L1,R1};
-guard_test({op,Line,Op,L0,R0}) ->
+    {Op,ln(Anno),L1,R1};
+guard_test({op,Anno,Op,L0,R0}) ->
     true = erl_internal:comp_op(Op, 2) orelse	%Assertion.
 	erl_internal:bool_op(Op, 2) orelse
         erl_internal:arith_op(Op, 2),
     L1 = gexpr(L0),
     R1 = gexpr(R0),				%They see the same variables
-    {safe_bif,Line,erlang,Op,[L1,R1]};
+    {safe_bif,ln(Anno),erlang,Op,[L1,R1]};
 guard_test({var,_,_}=V) ->V;    % Boolean var
-guard_test({atom,Line,true}) -> {value,Line,true};
+guard_test({atom,Anno,true}) -> {value,ln(Anno),true};
 %% All other constants at this level means false.
-guard_test({atom,Line,_}) -> {value,Line,false};
-guard_test({integer,Line,_}) -> {value,Line,false};
-guard_test({char,Line,_}) -> {value,Line,false};
-guard_test({float,Line,_}) -> {value,Line,false};
-guard_test({string,Line,_}) -> {value,Line,false};
-guard_test({nil,Line}) -> {value,Line,false};
-guard_test({cons,Line,_,_}) -> {value,Line,false};
-guard_test({tuple,Line,_}) -> {value,Line,false};
-guard_test({map,Line,_}) -> {value,Line,false};
-guard_test({map,Line,_,_}) -> {value,Line,false};
-guard_test({bin,Line,_}) ->  {value,Line,false}.
-
-gexpr({var,Line,V}) -> {var,Line,V};
-gexpr({integer,Line,I}) -> {value,Line,I};
-gexpr({char,Line,I}) -> {value,Line,I};
-gexpr({float,Line,F}) -> {value,Line,F};
-gexpr({atom,Line,A}) -> {value,Line,A};
-gexpr({string,Line,S}) -> {value,Line,S};
-gexpr({nil,Line}) -> {value,Line,[]};
-gexpr({cons,Line,H0,T0}) ->
+guard_test({atom,Anno,_}) -> {value,ln(Anno),false};
+guard_test({integer,Anno,_}) -> {value,ln(Anno),false};
+guard_test({char,Anno,_}) -> {value,ln(Anno),false};
+guard_test({float,Anno,_}) -> {value,ln(Anno),false};
+guard_test({string,Anno,_}) -> {value,ln(Anno),false};
+guard_test({nil,Anno}) -> {value,ln(Anno),false};
+guard_test({cons,Anno,_,_}) -> {value,ln(Anno),false};
+guard_test({tuple,Anno,_}) -> {value,ln(Anno),false};
+guard_test({map,Anno,_}) -> {value,ln(Anno),false};
+guard_test({map,Anno,_,_}) -> {value,ln(Anno),false};
+guard_test({bin,Anno,_}) ->  {value,ln(Anno),false}.
+
+gexpr({var,Anno,V}) -> {var,ln(Anno),V};
+gexpr({integer,Anno,I}) -> {value,ln(Anno),I};
+gexpr({char,Anno,I}) -> {value,ln(Anno),I};
+gexpr({float,Anno,F}) -> {value,ln(Anno),F};
+gexpr({atom,Anno,A}) -> {value,ln(Anno),A};
+gexpr({string,Anno,S}) -> {value,ln(Anno),S};
+gexpr({nil,Anno}) -> {value,ln(Anno),[]};
+gexpr({cons,Anno,H0,T0}) ->
     case {gexpr(H0),gexpr(T0)} of
 	{{value,Line,H1},{value,Line,T1}} -> {value,Line,[H1|T1]};
-	{H1,T1} -> {cons,Line,H1,T1}
+	{H1,T1} -> {cons,ln(Anno),H1,T1}
     end;
-gexpr({tuple,Line,Es0}) ->
+gexpr({tuple,Anno,Es0}) ->
     Es1 = gexpr_list(Es0),
-    {tuple,Line,Es1};
-gexpr({map,Line,Fs0}) ->
-    Fs1 = map_fields(Fs0, fun gexpr/1),
-    {map,Line,Fs1};
-gexpr({map,Line,E0,Fs0}) ->
+    {tuple,ln(Anno),Es1};
+gexpr({map,Anno,Fs0}) ->
+    new_map(Fs0, Anno, fun gexpr/1);
+gexpr({map,Anno,E0,Fs0}) ->
     E1 = gexpr(E0),
     Fs1 = map_fields(Fs0, fun gexpr/1),
-    {map,Line,E1,Fs1};
-gexpr({bin,Line,Flds0}) ->
+    {map,ln(Anno),E1,Fs1};
+gexpr({bin,Anno,Flds0}) ->
     Flds = gexpr_list(Flds0),
-    {bin,Line,Flds};
-gexpr({bin_element,Line,Expr0,Size0,Type}) ->
+    {bin,ln(Anno),Flds};
+gexpr({bin_element,Anno,Expr0,Size0,Type}) ->
     Expr = gexpr(Expr0),
     Size = gexpr(Size0),
-    {bin_element,Line,Expr,Size,Type};
+    {bin_element,ln(Anno),Expr,Size,Type};
 %%% The previous passes have added the module name 'erlang' to
 %%% all BIF calls, even in guards.
-gexpr({call,Line,{remote,_,{atom,_,erlang},{atom,_,self}},[]}) ->
-    {dbg, Line, self, []};
-gexpr({call,Line,{remote,_,{atom,_,erlang},{atom,_,F}},As0}) ->
+gexpr({call,Anno,{remote,_,{atom,_,erlang},{atom,_,self}},[]}) ->
+    {dbg,ln(Anno),self,[]};
+gexpr({call,Anno,{remote,_,{atom,_,erlang},{atom,_,F}},As0}) ->
     As = gexpr_list(As0),
-    {safe_bif,Line,erlang,F,As};
-gexpr({op,Line,Op,A0}) ->
+    {safe_bif,ln(Anno),erlang,F,As};
+gexpr({op,Anno,Op,A0}) ->
     erl_internal:arith_op(Op, 1),
     A1 = gexpr(A0),
-    {safe_bif,Line,erlang,Op,[A1]};
-gexpr({op,Line,Op,L0,R0}) when Op =:= 'andalso'; Op =:= 'orelse' ->
+    {safe_bif,ln(Anno),erlang,Op,[A1]};
+gexpr({op,Anno,Op,L0,R0}) when Op =:= 'andalso'; Op =:= 'orelse' ->
     L1 = gexpr(L0),
     R1 = gexpr(R0),			%They see the same variables
-    {Op,Line,L1,R1};
-gexpr({op,Line,Op,L0,R0}) ->
+    {Op,ln(Anno),L1,R1};
+gexpr({op,Anno,Op,L0,R0}) ->
     true = erl_internal:arith_op(Op, 2) orelse erl_internal:comp_op(Op, 2)
 	orelse erl_internal:bool_op(Op, 2),
     L1 = gexpr(L0),
     R1 = gexpr(R0),			%They see the same variables
-    {safe_bif,Line,erlang,Op,[L1,R1]}.
+    {safe_bif,ln(Anno),erlang,Op,[L1,R1]}.
 
 %%  These expressions are processed "in parallel" for purposes of variable
 %%  definition etc.
@@ -343,175 +342,175 @@ exprs([E0|Es], Lc) ->
     [E1|exprs(Es, Lc)];
 exprs([], _Lc) -> [].
 
-expr({var,Line,V}, _Lc) -> {var,Line,V};
-expr({integer,Line,I}, _Lc) -> {value,Line,I};
-expr({char,Line,I}, _Lc) -> {value,Line,I};
-expr({float,Line,F}, _Lc) -> {value,Line,F};
-expr({atom,Line,A}, _Lc) -> {value,Line,A};
-expr({string,Line,S}, _Lc) -> {value,Line,S};
-expr({nil,Line}, _Lc) -> {value,Line,[]};
-expr({cons,Line,H0,T0}, _Lc) ->
+expr({var,Anno,V}, _Lc) -> {var,ln(Anno),V};
+expr({integer,Anno,I}, _Lc) -> {value,ln(Anno),I};
+expr({char,Anno,I}, _Lc) -> {value,ln(Anno),I};
+expr({float,Anno,F}, _Lc) -> {value,ln(Anno),F};
+expr({atom,Anno,A}, _Lc) -> {value,ln(Anno),A};
+expr({string,Anno,S}, _Lc) -> {value,ln(Anno),S};
+expr({nil,Anno}, _Lc) -> {value,ln(Anno),[]};
+expr({cons,Anno,H0,T0}, _Lc) ->
     case {expr(H0, false),expr(T0, false)} of
 	{{value,Line,H1},{value,Line,T1}} -> {value,Line,[H1|T1]};
-	{H1,T1} -> {cons,Line,H1,T1}
+	{H1,T1} -> {cons,ln(Anno),H1,T1}
     end;
-expr({tuple,Line,Es0}, _Lc) ->
+expr({tuple,Anno,Es0}, _Lc) ->
     Es1 = expr_list(Es0),
-    {tuple,Line,Es1};
-expr({map,Line,Fs0}, _Lc) ->
-    Fs1 = map_fields(Fs0),
-    {map,Line,Fs1};
-expr({map,Line,E0,Fs0}, _Lc) ->
+    {tuple,ln(Anno),Es1};
+expr({map,Anno,Fs}, _Lc) ->
+    new_map(Fs, Anno, fun (E) -> expr(E, false) end);
+expr({map,Anno,E0,Fs0}, _Lc) ->
     E1 = expr(E0, false),
     Fs1 = map_fields(Fs0),
-    {map,Line,E1,Fs1};
-expr({block,Line,Es0}, Lc) ->
+    {map,ln(Anno),E1,Fs1};
+expr({block,Anno,Es0}, Lc) ->
     %% Unfold block into a sequence.
     Es1 = exprs(Es0, Lc),
-    {block,Line,Es1};
-expr({'if',Line,Cs0}, Lc) ->
+    {block,ln(Anno),Es1};
+expr({'if',Anno,Cs0}, Lc) ->
     Cs1 = icr_clauses(Cs0, Lc),
-    {'if',Line,Cs1};
-expr({'case',Line,E0,Cs0}, Lc) ->
+    {'if',ln(Anno),Cs1};
+expr({'case',Anno,E0,Cs0}, Lc) ->
     E1 = expr(E0, false),
     Cs1 = icr_clauses(Cs0, Lc),
-    {'case',Line,E1,Cs1};
-expr({'receive',Line,Cs0}, Lc) ->
+    {'case',ln(Anno),E1,Cs1};
+expr({'receive',Anno,Cs0}, Lc) ->
     Cs1 = icr_clauses(Cs0, Lc),
-    {'receive',Line,Cs1};
-expr({'receive',Line,Cs0,To0,ToEs0}, Lc) ->
+    {'receive',ln(Anno),Cs1};
+expr({'receive',Anno,Cs0,To0,ToEs0}, Lc) ->
     To1 = expr(To0, false),
     ToEs1 = exprs(ToEs0, Lc),
     Cs1 = icr_clauses(Cs0, Lc),
-    {'receive',Line,Cs1,To1,ToEs1};
-expr({'fun',Line,{clauses,Cs0},{_,_,Name}}, _Lc) when is_atom(Name) ->
+    {'receive',ln(Anno),Cs1,To1,ToEs1};
+expr({'fun',Anno,{clauses,Cs0},{_,_,Name}}, _Lc) when is_atom(Name) ->
     %% New R10B-2 format (abstract_v2).
     Cs = fun_clauses(Cs0),
-    {make_fun,Line,Name,Cs};
-expr({'fun',Line,{function,F,A},{_Index,_OldUniq,Name}}, _Lc) ->
+    {make_fun,ln(Anno),Name,Cs};
+expr({'fun',Anno,{function,F,A},{_Index,_OldUniq,Name}}, _Lc) ->
     %% New R8 format (abstract_v2).
+    Line = ln(Anno),
     As = new_vars(A, Line),
     Cs = [{clause,Line,As,[],[{local_call,Line,F,As,true}]}],
     {make_fun,Line,Name,Cs};
-expr({named_fun,Line,FName,Cs0,{_,_,Name}}, _Lc) when is_atom(Name) ->
+expr({named_fun,Anno,FName,Cs0,{_,_,Name}}, _Lc) when is_atom(Name) ->
     Cs = fun_clauses(Cs0),
-    {make_named_fun,Line,Name,FName,Cs};
-expr({'fun',Line,{function,{atom,_,M},{atom,_,F},{integer,_,A}}}, _Lc)
+    {make_named_fun,ln(Anno),Name,FName,Cs};
+expr({'fun',Anno,{function,{atom,_,M},{atom,_,F},{integer,_,A}}}, _Lc)
   when 0 =< A, A =< 255 ->
     %% New format in R15 for fun M:F/A (literal values).
-    {value,Line,erlang:make_fun(M, F, A)};
-expr({'fun',Line,{function,M,F,A}}, _Lc) ->
+    {value,ln(Anno),erlang:make_fun(M, F, A)};
+expr({'fun',Anno,{function,M,F,A}}, _Lc) ->
     %% New format in R15 for fun M:F/A (one or more variables).
     MFA = expr_list([M,F,A]),
-    {make_ext_fun,Line,MFA};
-expr({call,Line,{remote,_,{atom,_,erlang},{atom,_,self}},[]}, _Lc) ->
-    {dbg,Line,self,[]};
-expr({call,Line,{remote,_,{atom,_,erlang},{atom,_,get_stacktrace}},[]}, _Lc) ->
-    {dbg,Line,get_stacktrace,[]};
-expr({call,Line,{remote,_,{atom,_,erlang},{atom,_,throw}},[_]=As}, _Lc) ->
-    {dbg,Line,throw,expr_list(As)};
-expr({call,Line,{remote,_,{atom,_,erlang},{atom,_,error}},[_]=As}, _Lc) ->
-    {dbg,Line,error,expr_list(As)};
-expr({call,Line,{remote,_,{atom,_,erlang},{atom,_,exit}},[_]=As}, _Lc) ->
-    {dbg,Line,exit,expr_list(As)};
-expr({call,Line,{remote,_,{atom,_,erlang},{atom,_,raise}},[_,_,_]=As}, _Lc) ->
-    {dbg,Line,raise,expr_list(As)};
-expr({call,Line,{remote,_,{atom,_,erlang},{atom,_,apply}},[_,_,_]=As0}, Lc) ->
+    {make_ext_fun,ln(Anno),MFA};
+expr({call,Anno,{remote,_,{atom,_,erlang},{atom,_,self}},[]}, _Lc) ->
+    {dbg,ln(Anno),self,[]};
+expr({call,Anno,{remote,_,{atom,_,erlang},{atom,_,get_stacktrace}},[]}, _Lc) ->
+    {dbg,ln(Anno),get_stacktrace,[]};
+expr({call,Anno,{remote,_,{atom,_,erlang},{atom,_,throw}},[_]=As}, _Lc) ->
+    {dbg,ln(Anno),throw,expr_list(As)};
+expr({call,Anno,{remote,_,{atom,_,erlang},{atom,_,error}},[_]=As}, _Lc) ->
+    {dbg,ln(Anno),error,expr_list(As)};
+expr({call,Anno,{remote,_,{atom,_,erlang},{atom,_,exit}},[_]=As}, _Lc) ->
+    {dbg,ln(Anno),exit,expr_list(As)};
+expr({call,Anno,{remote,_,{atom,_,erlang},{atom,_,raise}},[_,_,_]=As}, _Lc) ->
+    {dbg,ln(Anno),raise,expr_list(As)};
+expr({call,Anno,{remote,_,{atom,_,erlang},{atom,_,apply}},[_,_,_]=As0}, Lc) ->
     As = expr_list(As0),
-    {apply,Line,As,Lc};
-expr({call,Line,{remote,_,{atom,_,Mod},{atom,_,Func}},As0}, Lc) ->
+    {apply,ln(Anno),As,Lc};
+expr({call,Anno,{remote,_,{atom,_,Mod},{atom,_,Func}},As0}, Lc) ->
     As = expr_list(As0),
     case erlang:is_builtin(Mod, Func, length(As)) of
 	false ->
-	    {call_remote,Line,Mod,Func,As,Lc};
+	    {call_remote,ln(Anno),Mod,Func,As,Lc};
 	true ->
 	    case bif_type(Mod, Func, length(As0)) of
-		safe -> {safe_bif,Line,Mod,Func,As};
-		unsafe ->{bif,Line,Mod,Func,As}
+		safe -> {safe_bif,ln(Anno),Mod,Func,As};
+		unsafe ->{bif,ln(Anno),Mod,Func,As}
 	    end
     end;
-expr({call,Line,{remote,_,Mod0,Func0},As0}, Lc) ->
+expr({call,Anno,{remote,_,Mod0,Func0},As0}, Lc) ->
     %% New R8 format (abstract_v2).
     Mod = expr(Mod0, false),
     Func = expr(Func0, false),
     As = consify(expr_list(As0)),
-    {apply,Line,[Mod,Func,As],Lc};
-expr({call,Line,{atom,_,Func},As0}, Lc) ->
+    {apply,ln(Anno),[Mod,Func,As],Lc};
+expr({call,Anno,{atom,_,Func},As0}, Lc) ->
     As = expr_list(As0),
-    {local_call,Line,Func,As,Lc};
-expr({call,Line,Fun0,As0}, Lc) ->
+    {local_call,ln(Anno),Func,As,Lc};
+expr({call,Anno,Fun0,As0}, Lc) ->
     Fun = expr(Fun0, false),
     As = expr_list(As0),
-    {apply_fun,Line,Fun,As,Lc};
-expr({'catch',Line,E0}, _Lc) ->
+    {apply_fun,ln(Anno),Fun,As,Lc};
+expr({'catch',Anno,E0}, _Lc) ->
     %% No new variables added.
     E1 = expr(E0, false),
-    {'catch',Line,E1};
-expr({'try',Line,Es0,CaseCs0,CatchCs0,As0}, Lc) ->
+    {'catch',ln(Anno),E1};
+expr({'try',Anno,Es0,CaseCs0,CatchCs0,As0}, Lc) ->
     %% No new variables added.
     Es = expr_list(Es0),
     CaseCs = icr_clauses(CaseCs0, Lc),
     CatchCs = icr_clauses(CatchCs0, Lc),
     As = expr_list(As0),
-    {'try',Line,Es,CaseCs,CatchCs,As};
-expr({lc,Line,E0,Gs0}, _Lc) ->			%R8.
+    {'try',ln(Anno),Es,CaseCs,CatchCs,As};
+expr({lc,Anno,E0,Gs0}, _Lc) ->			%R8.
     Gs = lists:map(fun ({generate,L,P0,Qs}) ->
-			   {generate,L,expr(P0, false),expr(Qs, false)};
+			   {generate,L,pattern(P0),expr(Qs, false)};
 		       ({b_generate,L,P0,Qs}) -> %R12.
-			   {b_generate,L,expr(P0, false),expr(Qs, false)};
+			   {b_generate,L,pattern(P0),expr(Qs, false)};
 		       (Expr) ->
 			   case erl_lint:is_guard_test(Expr) of
 			       true -> {guard,guard([[Expr]])};
 			       false -> expr(Expr, false)
 			   end
 		   end, Gs0),
-    {lc,Line,expr(E0, false),Gs};
-expr({bc,Line,E0,Gs0}, _Lc) ->			%R12.
+    {lc,ln(Anno),expr(E0, false),Gs};
+expr({bc,Anno,E0,Gs0}, _Lc) ->			%R12.
     Gs = lists:map(fun ({generate,L,P0,Qs}) ->
-			   {generate,L,expr(P0, false),expr(Qs, false)};
+			   {generate,L,pattern(P0),expr(Qs, false)};
 		       ({b_generate,L,P0,Qs}) -> %R12.
-			   {b_generate,L,expr(P0, false),expr(Qs, false)};
+			   {b_generate,L,pattern(P0),expr(Qs, false)};
 		       (Expr) ->
 			   case erl_lint:is_guard_test(Expr) of
 			       true -> {guard,guard([[Expr]])};
 			       false -> expr(Expr, false)
 			   end
 		   end, Gs0),
-    {bc,Line,expr(E0, false),Gs};
-expr({match,Line,P0,E0}, _Lc) ->
+    {bc,ln(Anno),expr(E0, false),Gs};
+expr({match,Anno,P0,E0}, _Lc) ->
     E1 = expr(E0, false),
     P1 = pattern(P0),
-    {match,Line,P1,E1};
-expr({op,Line,Op,A0}, _Lc) ->
+    {match,ln(Anno),P1,E1};
+expr({op,Anno,Op,A0}, _Lc) ->
     A1 = expr(A0, false),
-    {op,Line,Op,[A1]};
-expr({op,Line,'++',L0,R0}, _Lc) ->
+    {op,ln(Anno),Op,[A1]};
+expr({op,Anno,'++',L0,R0}, _Lc) ->
     L1 = expr(L0, false),
     R1 = expr(R0, false),		  %They see the same variables
-    {op,Line,append,[L1,R1]};
-expr({op,Line,'--',L0,R0}, _Lc) ->
+    {op,ln(Anno),append,[L1,R1]};
+expr({op,Anno,'--',L0,R0}, _Lc) ->
     L1 = expr(L0, false),
     R1 = expr(R0, false),		  %They see the same variables
-    {op,Line,subtract,[L1,R1]};
-expr({op,Line,'!',L0,R0}, _Lc) ->
+    {op,ln(Anno),subtract,[L1,R1]};
+expr({op,Anno,'!',L0,R0}, _Lc) ->
     L1 = expr(L0, false),
     R1 = expr(R0, false),		  %They see the same variables
-    {send,Line,L1,R1};
-expr({op,Line,Op,L0,R0}, _Lc) when Op =:= 'andalso'; Op =:= 'orelse' ->
+    {send,ln(Anno),L1,R1};
+expr({op,Anno,Op,L0,R0}, _Lc) when Op =:= 'andalso'; Op =:= 'orelse' ->
     L1 = expr(L0, false),
     R1 = expr(R0, false),		  %They see the same variables
-    {Op,Line,L1,R1};
-expr({op,Line,Op,L0,R0}, _Lc) ->
+    {Op,ln(Anno),L1,R1};
+expr({op,Anno,Op,L0,R0}, _Lc) ->
     L1 = expr(L0, false),
     R1 = expr(R0, false),		  %They see the same variables
-    {op,Line,Op,[L1,R1]};
-expr({bin,Line,Grp}, _Lc) ->
+    {op,ln(Anno),Op,[L1,R1]};
+expr({bin,Anno,Grp}, _Lc) ->
     Grp1 = expr_list(Grp),
-    {bin,Line,Grp1};
-expr({bin_element,Line,Expr,Size,Type}, _Lc) ->
+    {bin,ln(Anno),Grp1};
+expr({bin_element,Anno,Expr,Size,Type}, _Lc) ->
     Expr1 = expr(Expr, false),
     Size1 = expr(Size, false),
-    {bin_element,Line,Expr1,Size1,Type};
+    {bin_element,ln(Anno),Expr1,Size1,Type};
 expr(Other, _Lc) ->
     exit({?MODULE,{unknown_expr,Other}}).
 
@@ -519,7 +518,6 @@ consify([A|As]) ->
     {cons,0,A,consify(As)};
 consify([]) -> {value,0,[]}.
 
-
 %% -type expr_list([Expression]) -> [Expression].
 %%  These expressions are processed "in parallel" for purposes of variable
 %%  definition etc.
@@ -534,17 +532,35 @@ icr_clauses([C0|Cs], Lc) ->
     [C1|icr_clauses(Cs, Lc)];
 icr_clauses([], _) -> [].
 
-fun_clauses([{clause,L,H,G,B}|Cs]) ->
-    [{clause,L,head(H),guard(G),exprs(B, true)}|fun_clauses(Cs)];
+fun_clauses([{clause,A,H,G,B}|Cs]) ->
+    [{clause,ln(A),head(H),guard(G),exprs(B, true)}|fun_clauses(Cs)];
 fun_clauses([]) -> [].
 
+
+new_map(Fs0, Anno, F) ->
+    Line = ln(Anno),
+    Fs1 = map_fields(Fs0, F),
+    Fs2 = [{ln(A),K,V} || {map_field_assoc,A,K,V} <- Fs1],
+    try
+	{value,Line,map_literal(Fs2, #{})}
+    catch
+	throw:not_literal ->
+	    {map,Line,Fs2}
+    end.
+
+map_literal([{_,{value,_,K},{value,_,V}}|T], M) ->
+    map_literal(T, maps:put(K, V, M));
+map_literal([_|_], _) ->
+    throw(not_literal);
+map_literal([], M) -> M.
+
 map_fields(Fs) ->
     map_fields(Fs, fun (E) -> expr(E, false) end).
 
-map_fields([{map_field_assoc,L,N,V}|Fs], F) ->
-    [{map_field_assoc,L,F(N),F(V)}|map_fields(Fs)];
-map_fields([{map_field_exact,L,N,V}|Fs], F) ->
-    [{map_field_exact,L,F(N),F(V)}|map_fields(Fs)];
+map_fields([{map_field_assoc,A,N,V}|Fs], F) ->
+    [{map_field_assoc,ln(A),F(N),F(V)}|map_fields(Fs)];
+map_fields([{map_field_exact,A,N,V}|Fs], F) ->
+    [{map_field_exact,ln(A),F(N),F(V)}|map_fields(Fs)];
 map_fields([], _) -> [].
 
 %% new_var_name() -> VarName.
@@ -564,6 +580,9 @@ new_vars(N, L, Vs) when N > 0 ->
     new_vars(N-1, L, [V|Vs]);
 new_vars(0, _, Vs) -> Vs.
 
+ln(Anno) ->
+    erl_anno:line(Anno).
+
 bif_type(erlang, Name, Arity) ->
     case erl_internal:guard_bif(Name, Arity) of
 	true ->
diff --git a/lib/debugger/src/dbg_wx_trace.erl b/lib/debugger/src/dbg_wx_trace.erl
index 4438466bb0..ffdfc46496 100644
--- a/lib/debugger/src/dbg_wx_trace.erl
+++ b/lib/debugger/src/dbg_wx_trace.erl
@@ -140,7 +140,7 @@ init(Pid, Parent, Meta, TraceWin, BackTrace, Strings) ->
 
     int:meta(Meta, trace, State3#state.trace),
 
-    gui_enable_updown(stack_trace, {1,1}),
+    gui_enable_updown(State3#state.stack_trace, {1,1}),
     gui_enable_btrace(false, false),
     dbg_wx_trace_win:display(Win,idle),
 
diff --git a/lib/debugger/src/debugger.app.src b/lib/debugger/src/debugger.app.src
index f102385d39..a013c5c11f 100644
--- a/lib/debugger/src/debugger.app.src
+++ b/lib/debugger/src/debugger.app.src
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1997-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -47,5 +47,5 @@
 	    ]},
   {registered, [dbg_iserver, dbg_wx_mon, dbg_wx_winman]},
   {applications, [kernel, stdlib]},
-  {runtime_dependencies, ["wx-1.2","stdlib-2.0","kernel-3.0","erts-6.0",
+  {runtime_dependencies, ["wx-1.2","stdlib-2.5","kernel-3.0","erts-6.0",
 			  "compiler-5.0"]}]}.
diff --git a/lib/debugger/src/int.erl b/lib/debugger/src/int.erl
index 908390ce50..6f84ca3bca 100644
--- a/lib/debugger/src/int.erl
+++ b/lib/debugger/src/int.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1998-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1998-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -365,7 +365,7 @@ stop() ->
 %% function will receive the following messages:
 %%   {int, {interpret, Mod}}
 %%   {int, {no_interpret, Mod}}
-%%   {int, {new_process, Pid, Function, Status, Info}}
+%%   {int, {new_process, {Pid, Function, Status, Info}}}
 %%   {int, {new_status, Pid, Status, Info}}
 %%   {int, {new_break, {Point, Options}}}
 %%   {int, {delete_break, Point}}
diff --git a/lib/debugger/test/int_eval_SUITE.erl b/lib/debugger/test/int_eval_SUITE.erl
index 9d7ef238e3..cda5c97ec4 100644
--- a/lib/debugger/test/int_eval_SUITE.erl
+++ b/lib/debugger/test/int_eval_SUITE.erl
@@ -293,7 +293,7 @@ stacktrace(Config) when is_list(Config) ->
 
 maps(Config) when is_list(Config) ->
     Fun = fun () -> ?IM:empty_map_update([camembert]) end,
-    {'EXIT',{{badarg,[camembert]},_}} = spawn_eval(Fun),
+    {'EXIT',{{badmap,[camembert]},_}} = spawn_eval(Fun),
     [#{hello := 0, price := 0}] = spawn_eval(fun () -> ?IM:update_in_fun() end),
     ok.
 
diff --git a/lib/debugger/test/map_SUITE.erl b/lib/debugger/test/map_SUITE.erl
index 0076193725..74847e161f 100644
--- a/lib/debugger/test/map_SUITE.erl
+++ b/lib/debugger/test/map_SUITE.erl
@@ -24,17 +24,43 @@
     ]).
 
 -export([
-	t_build_and_match_literals/1,
-	t_update_literals/1,t_match_and_update_literals/1,
+	t_build_and_match_literals/1, t_build_and_match_literals_large/1,
+	t_update_literals/1, t_update_literals_large/1,
+        t_match_and_update_literals/1, t_match_and_update_literals_large/1,
 	t_update_map_expressions/1,
-	t_update_assoc/1,t_update_exact/1,
-	t_guard_bifs/1, t_guard_sequence/1, t_guard_update/1,
-	t_guard_receive/1, t_guard_fun/1,
+	t_update_assoc/1, t_update_assoc_large/1,
+        t_update_exact/1, t_update_exact_large/1,
+	t_guard_bifs/1,
+        t_guard_sequence/1, t_guard_sequence_large/1,
+        t_guard_update/1, t_guard_update_large/1,
+	t_guard_receive/1, t_guard_receive_large/1,
+        t_guard_fun/1,
 	t_list_comprehension/1,
 	t_map_sort_literals/1,
-	%t_size/1,
 	t_map_size/1,
-
+	t_build_and_match_aliasing/1,
+
+	%% variables
+	t_build_and_match_variables/1,
+	t_update_assoc_variables/1,t_update_exact_variables/1,
+	t_nested_pattern_expressions/1,
+	t_guard_update_variables/1,
+	t_guard_sequence_variables/1,
+	t_guard_sequence_mixed/1,
+	t_frequency_table/1,
+
+	%% not covered in 17.0-rc1
+	t_build_and_match_over_alloc/1,
+	t_build_and_match_empty_val/1,
+	t_build_and_match_val/1,
+	t_build_and_match_nil/1,
+	t_build_and_match_structure/1,
+
+	%% errors in 17.0-rc1
+	t_update_values/1,
+        t_expand_map_update/1,
+        t_export/1,
+ 
 	%% Specific Map BIFs
 	t_bif_map_get/1,
 	t_bif_map_find/1,
@@ -61,8 +87,7 @@
 
 	%% misc
 	t_pdict/1,
-	t_ets/1,
-	t_dets/1
+	t_ets/1
     ]).
 
 -include_lib("stdlib/include/ms_transform.hrl").
@@ -70,14 +95,42 @@
 suite() -> [].
 
 all() -> [
-	t_build_and_match_literals,
-	t_update_literals, t_match_and_update_literals,
+	t_build_and_match_literals, t_build_and_match_literals_large,
+	t_update_literals, t_update_literals_large,
+        t_match_and_update_literals, t_match_and_update_literals_large,
 	t_update_map_expressions,
-	t_update_assoc,t_update_exact,
-	t_guard_bifs, t_guard_sequence, t_guard_update,
-	t_guard_receive,t_guard_fun, t_list_comprehension,
+	t_update_assoc, t_update_assoc_large,
+        t_update_exact, t_update_exact_large,
+	t_guard_bifs,
+        t_guard_sequence, t_guard_sequence_large,
+        t_guard_update, t_guard_update_large,
+	t_guard_receive, t_guard_receive_large,
+        t_guard_fun, t_list_comprehension,
 	t_map_sort_literals,
-
+	t_build_and_match_aliasing,
+
+	%% variables
+	t_build_and_match_variables,
+	t_update_assoc_variables,t_update_exact_variables,
+	t_nested_pattern_expressions,
+	t_guard_update_variables,
+	t_guard_sequence_variables,
+	t_guard_sequence_mixed,
+	t_frequency_table,
+
+	%% not covered in 17.0-rc1
+	t_build_and_match_over_alloc,
+	t_build_and_match_empty_val,
+	t_build_and_match_val,
+	t_build_and_match_nil,
+	t_build_and_match_structure,
+
+
+	%% errors in 17.0-rc1
+	t_update_values,
+        t_expand_map_update,
+        t_export,
+    
 	%% Specific Map BIFs
 	t_bif_map_get,t_bif_map_find,t_bif_map_is_key,
 	t_bif_map_keys, t_bif_map_merge, t_bif_map_new,
@@ -94,7 +147,6 @@ all() -> [
 	t_maps_fold, t_maps_map,
 	t_maps_size, t_maps_without,
 
-
         %% Other functions
 	t_pdict,
 	t_ets
@@ -147,17 +199,461 @@ t_build_and_match_literals(Config) when is_list(Config) ->
     {'EXIT',{{badmatch,_},_}} = (catch (#{x:=3} = id(#{x=>"three"}))),
     ok.
 
+t_build_and_match_literals_large(Config) when is_list(Config) ->
+    % normal non-repeating
+    M0 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" }),
+
+    #{10:=a0,20:=b0,30:="c0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M0,
+    #{11:=a1,21:=b1,31:="c1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M0,
+    #{12:=a2,22:=b2,32:="c2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M0,
+    #{13:=a3,23:=b3,33:="c3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M0,
+    #{14:=a4,24:=b4,34:="c4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M0,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M0,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M0,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M0,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M0,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M0,
+
+    60 = map_size(M0),
+    60 = maps:size(M0),
+
+    % with repeating
+    M1 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               10=>na0,20=>nb0,30=>"nc0","40"=>"nd0",<<"50">>=>"ne0",{["00"]}=>"n10",
+               11=>na1,21=>nb1,31=>"nc1","41"=>"nd1",<<"51">>=>"ne1",{["01"]}=>"n11",
+               12=>na2,22=>nb2,32=>"nc2","42"=>"nd2",<<"52">>=>"ne2",{["02"]}=>"n12",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+
+               13=>na3,23=>nb3,33=>"nc3","43"=>"nd3",<<"53">>=>"ne3",{["03"]}=>"n13",
+               14=>na4,24=>nb4,34=>"nc4","44"=>"nd4",<<"54">>=>"ne4",{["04"]}=>"n14",
+
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" }),
+
+    #{10:=na0,20:=nb0,30:="nc0","40":="nd0",<<"50">>:="ne0",{["00"]}:="n10"} = M1,
+    #{11:=na1,21:=nb1,31:="nc1","41":="nd1",<<"51">>:="ne1",{["01"]}:="n11"} = M1,
+    #{12:=na2,22:=nb2,32:="nc2","42":="nd2",<<"52">>:="ne2",{["02"]}:="n12"} = M1,
+    #{13:=na3,23:=nb3,33:="nc3","43":="nd3",<<"53">>:="ne3",{["03"]}:="n13"} = M1,
+    #{14:=na4,24:=nb4,34:="nc4","44":="nd4",<<"54">>:="ne4",{["04"]}:="n14"} = M1,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M1,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M1,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M1,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M1,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M1,
+
+    60 = map_size(M1),
+    60 = maps:size(M1),
+
+    % with floats
+
+    M2 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19",
+
+               10.0=>fa0,20.0=>fb0,30.0=>"fc0",
+               11.0=>fa1,21.0=>fb1,31.0=>"fc1",
+               12.0=>fa2,22.0=>fb2,32.0=>"fc2",
+               13.0=>fa3,23.0=>fb3,33.0=>"fc3",
+               14.0=>fa4,24.0=>fb4,34.0=>"fc4",
+
+               15.0=>fa5,25.0=>fb5,35.0=>"fc5",
+               16.0=>fa6,26.0=>fb6,36.0=>"fc6",
+               17.0=>fa7,27.0=>fb7,37.0=>"fc7",
+               18.0=>fa8,28.0=>fb8,38.0=>"fc8",
+               19.0=>fa9,29.0=>fb9,39.0=>"fc9"}),
+
+    #{10:=a0,20:=b0,30:="c0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M2,
+    #{11:=a1,21:=b1,31:="c1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M2,
+    #{12:=a2,22:=b2,32:="c2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M2,
+    #{13:=a3,23:=b3,33:="c3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M2,
+    #{14:=a4,24:=b4,34:="c4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M2,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M2,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M2,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M2,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M2,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M2,
+
+    #{10.0:=fa0,20.0:=fb0,30.0:="fc0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M2,
+    #{11.0:=fa1,21.0:=fb1,31.0:="fc1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M2,
+    #{12.0:=fa2,22.0:=fb2,32.0:="fc2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M2,
+    #{13.0:=fa3,23.0:=fb3,33.0:="fc3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M2,
+    #{14.0:=fa4,24.0:=fb4,34.0:="fc4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M2,
+
+    #{15.0:=fa5,25.0:=fb5,35.0:="fc5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M2,
+    #{16.0:=fa6,26.0:=fb6,36.0:="fc6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M2,
+    #{17.0:=fa7,27.0:=fb7,37.0:="fc7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M2,
+    #{18.0:=fa8,28.0:=fb8,38.0:="fc8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M2,
+    #{19.0:=fa9,29.0:=fb9,39.0:="fc9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M2,
+
+    90 = map_size(M2),
+    90 = maps:size(M2),
+
+    % with bignums
+    M3 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19",
+
+               10.0=>fa0,20.0=>fb0,30.0=>"fc0",
+               11.0=>fa1,21.0=>fb1,31.0=>"fc1",
+               12.0=>fa2,22.0=>fb2,32.0=>"fc2",
+               13.0=>fa3,23.0=>fb3,33.0=>"fc3",
+               14.0=>fa4,24.0=>fb4,34.0=>"fc4",
+
+               15.0=>fa5,25.0=>fb5,35.0=>"fc5",
+               16.0=>fa6,26.0=>fb6,36.0=>"fc6",
+               17.0=>fa7,27.0=>fb7,37.0=>"fc7",
+               18.0=>fa8,28.0=>fb8,38.0=>"fc8",
+               19.0=>fa9,29.0=>fb9,39.0=>"fc9",
+
+               36893488147419103232=>big1,  73786976294838206464=>big2,
+               147573952589676412928=>big3, 18446744073709551616=>big4,
+               4294967296=>big5,            8589934592=>big6,
+               4294967295=>big7,            67108863=>big8
+             }),
+
+    #{10:=a0,20:=b0,30:="c0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M3,
+    #{11:=a1,21:=b1,31:="c1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M3,
+    #{12:=a2,22:=b2,32:="c2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M3,
+    #{13:=a3,23:=b3,33:="c3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M3,
+    #{14:=a4,24:=b4,34:="c4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M3,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M3,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M3,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M3,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M3,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M3,
+
+    #{10.0:=fa0,20.0:=fb0,30.0:="fc0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M3,
+    #{11.0:=fa1,21.0:=fb1,31.0:="fc1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M3,
+    #{12.0:=fa2,22.0:=fb2,32.0:="fc2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M3,
+    #{13.0:=fa3,23.0:=fb3,33.0:="fc3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M3,
+    #{14.0:=fa4,24.0:=fb4,34.0:="fc4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M3,
+
+    #{15.0:=fa5,25.0:=fb5,35.0:="fc5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M3,
+    #{16.0:=fa6,26.0:=fb6,36.0:="fc6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M3,
+    #{17.0:=fa7,27.0:=fb7,37.0:="fc7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M3,
+    #{18.0:=fa8,28.0:=fb8,38.0:="fc8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M3,
+    #{19.0:=fa9,29.0:=fb9,39.0:="fc9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M3,
+
+    #{36893488147419103232:=big1,67108863:=big8,"45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M3,
+    #{147573952589676412928:=big3,8589934592:=big6,"46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M3,
+    #{4294967296:=big5,18446744073709551616:=big4,"47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M3,
+    #{4294967295:=big7,73786976294838206464:=big2,"48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M3,
+
+    98 = map_size(M3),
+    98 = maps:size(M3),
+
+    %% with maps
+
+    M4 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19",
+
+               10.0=>fa0,20.0=>fb0,30.0=>"fc0",
+               11.0=>fa1,21.0=>fb1,31.0=>"fc1",
+               12.0=>fa2,22.0=>fb2,32.0=>"fc2",
+               13.0=>fa3,23.0=>fb3,33.0=>"fc3",
+               14.0=>fa4,24.0=>fb4,34.0=>"fc4",
+
+               15.0=>fa5,25.0=>fb5,35.0=>"fc5",
+               16.0=>fa6,26.0=>fb6,36.0=>"fc6",
+               17.0=>fa7,27.0=>fb7,37.0=>"fc7",
+               18.0=>fa8,28.0=>fb8,38.0=>"fc8",
+               19.0=>fa9,29.0=>fb9,39.0=>"fc9",
+
+               #{ one => small, map => key } => "small map key 1",
+               #{ second => small, map => key } => "small map key 2",
+               #{ third => small, map => key } => "small map key 3",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 2" }),
+
+    #{10:=a0,20:=b0,30:="c0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M4,
+    #{11:=a1,21:=b1,31:="c1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M4,
+    #{12:=a2,22:=b2,32:="c2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M4,
+    #{13:=a3,23:=b3,33:="c3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M4,
+    #{14:=a4,24:=b4,34:="c4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M4,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M4,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M4,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M4,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M4,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M4,
+
+    #{ #{ one => small, map => key }    := "small map key 1",
+       #{ second => small, map => key } := "small map key 2",
+       #{ third => small, map => key }  := "small map key 3" } = M4,
+
+    #{ #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+          11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+          12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+          13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+          14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+          15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+          16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+          17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+          18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+          19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } := "large map key 1",
+
+       #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+          11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+          12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+          13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+          14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+          15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+          k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+          17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+          18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+          19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } := "large map key 2" } = M4,
+
+
+    #{ 15:=V1,25:=b5,35:=V2,"45":="d5",<<"55">>:=V3,{["05"]}:="15",
+       #{ one => small, map => key }    := "small map key 1",
+       #{ second => small, map => key } := V4,
+       #{ third => small, map => key }  := "small map key 3",
+       #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+          11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+          12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+          13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+          14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+          15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+          16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+          17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+          18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+          19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } := V5 } = M4,
+
+    a5   = V1,
+    "c5" = V2,
+    "e5" = V3,
+    "small map key 2" = V4,
+    "large map key 1" = V5,
+
+    95 = map_size(M4),
+    95 = maps:size(M4),
+
+    % call for value
+
+    M5 = id(#{ 10=>id(a0),20=>b0,30=>id("c0"),"40"=>"d0",<<"50">>=>id("e0"),{["00"]}=>"10",
+               11=>id(a1),21=>b1,31=>id("c1"),"41"=>"d1",<<"51">>=>id("e1"),{["01"]}=>"11",
+               12=>id(a2),22=>b2,32=>id("c2"),"42"=>"d2",<<"52">>=>id("e2"),{["02"]}=>"12",
+               13=>id(a3),23=>b3,33=>id("c3"),"43"=>"d3",<<"53">>=>id("e3"),{["03"]}=>"13",
+               14=>id(a4),24=>b4,34=>id("c4"),"44"=>"d4",<<"54">>=>id("e4"),{["04"]}=>"14",
+
+               15=>id(a5),25=>b5,35=>id("c5"),"45"=>"d5",<<"55">>=>id("e5"),{["05"]}=>"15",
+               16=>id(a6),26=>b6,36=>id("c6"),"46"=>"d6",<<"56">>=>id("e6"),{["06"]}=>"16",
+               17=>id(a7),27=>b7,37=>id("c7"),"47"=>"d7",<<"57">>=>id("e7"),{["07"]}=>"17",
+               18=>id(a8),28=>b8,38=>id("c8"),"48"=>"d8",<<"58">>=>id("e8"),{["08"]}=>"18",
+               19=>id(a9),29=>b9,39=>id("c9"),"49"=>"d9",<<"59">>=>id("e9"),{["09"]}=>"19",
+
+               10.0=>fa0,20.0=>id(fb0),30.0=>id("fc0"),
+               11.0=>fa1,21.0=>id(fb1),31.0=>id("fc1"),
+               12.0=>fa2,22.0=>id(fb2),32.0=>id("fc2"),
+               13.0=>fa3,23.0=>id(fb3),33.0=>id("fc3"),
+               14.0=>fa4,24.0=>id(fb4),34.0=>id("fc4"),
+
+               15.0=>fa5,25.0=>id(fb5),35.0=>id("fc5"),
+               16.0=>fa6,26.0=>id(fb6),36.0=>id("fc6"),
+               17.0=>fa7,27.0=>id(fb7),37.0=>id("fc7"),
+               18.0=>fa8,28.0=>id(fb8),38.0=>id("fc8"),
+               19.0=>fa9,29.0=>id(fb9),39.0=>id("fc9"),
+
+               #{ one => small, map => key } => id("small map key 1"),
+               #{ second => small, map => key } => "small map key 2",
+               #{ third => small, map => key } => "small map key 3",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => id("large map key 2") }),
+
+    #{10:=a0,20:=b0,30:="c0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M5,
+    #{11:=a1,21:=b1,31:="c1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M5,
+    #{12:=a2,22:=b2,32:="c2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M5,
+    #{13:=a3,23:=b3,33:="c3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M5,
+    #{14:=a4,24:=b4,34:="c4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M5,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M5,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M5,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M5,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M5,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M5,
+
+    #{ #{ one => small, map => key }    := "small map key 1",
+       #{ second => small, map => key } := "small map key 2",
+       #{ third => small, map => key }  := "small map key 3" } = M5,
+
+    #{ #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+          11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+          12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+          13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+          14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+          15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+          16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+          17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+          18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+          19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } := "large map key 1",
+
+       #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+          11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+          12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+          13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+          14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+          15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+          k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+          17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+          18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+          19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } := "large map key 2" } = M5,
+
+    95 = map_size(M5),
+    95 = maps:size(M5),
+
+    %% remember
+
+    #{10:=a0,20:=b0,30:="c0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M0,
+    #{11:=a1,21:=b1,31:="c1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M0,
+    #{12:=a2,22:=b2,32:="c2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M0,
+    #{13:=a3,23:=b3,33:="c3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M0,
+    #{14:=a4,24:=b4,34:="c4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M0,
+
+    #{10:=na0,20:=nb0,30:="nc0","40":="nd0",<<"50">>:="ne0",{["00"]}:="n10"} = M1,
+    #{11:=na1,21:=nb1,31:="nc1","41":="nd1",<<"51">>:="ne1",{["01"]}:="n11"} = M1,
+    #{12:=na2,22:=nb2,32:="nc2","42":="nd2",<<"52">>:="ne2",{["02"]}:="n12"} = M1,
+    #{13:=na3,23:=nb3,33:="nc3","43":="nd3",<<"53">>:="ne3",{["03"]}:="n13"} = M1,
+    #{14:=na4,24:=nb4,34:="nc4","44":="nd4",<<"54">>:="ne4",{["04"]}:="n14"} = M1,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M1,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M1,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M1,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M1,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M1,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M2,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M2,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M2,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M2,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M2,
+
+    #{10.0:=fa0,20.0:=fb0,30.0:="fc0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M2,
+    #{11.0:=fa1,21.0:=fb1,31.0:="fc1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M2,
+    #{12.0:=fa2,22.0:=fb2,32.0:="fc2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M2,
+    #{13.0:=fa3,23.0:=fb3,33.0:="fc3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M2,
+    #{14.0:=fa4,24.0:=fb4,34.0:="fc4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M2,
+
+    #{15:=a5,25:=b5,35:="c5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M3,
+    #{16:=a6,26:=b6,36:="c6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M3,
+    #{17:=a7,27:=b7,37:="c7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M3,
+    #{18:=a8,28:=b8,38:="c8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M3,
+    #{19:=a9,29:=b9,39:="c9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M3,
+
+    #{10.0:=fa0,20.0:=fb0,30.0:="fc0","40":="d0",<<"50">>:="e0",{["00"]}:="10"} = M3,
+    #{11.0:=fa1,21.0:=fb1,31.0:="fc1","41":="d1",<<"51">>:="e1",{["01"]}:="11"} = M3,
+    #{12.0:=fa2,22.0:=fb2,32.0:="fc2","42":="d2",<<"52">>:="e2",{["02"]}:="12"} = M3,
+    #{13.0:=fa3,23.0:=fb3,33.0:="fc3","43":="d3",<<"53">>:="e3",{["03"]}:="13"} = M3,
+    #{14.0:=fa4,24.0:=fb4,34.0:="fc4","44":="d4",<<"54">>:="e4",{["04"]}:="14"} = M3,
+
+    #{15.0:=fa5,25.0:=fb5,35.0:="fc5","45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M3,
+    #{16.0:=fa6,26.0:=fb6,36.0:="fc6","46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M3,
+    #{17.0:=fa7,27.0:=fb7,37.0:="fc7","47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M3,
+    #{18.0:=fa8,28.0:=fb8,38.0:="fc8","48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M3,
+    #{19.0:=fa9,29.0:=fb9,39.0:="fc9","49":="d9",<<"59">>:="e9",{["09"]}:="19"} = M3,
+
+    #{36893488147419103232:=big1,67108863:=big8,"45":="d5",<<"55">>:="e5",{["05"]}:="15"} = M3,
+    #{147573952589676412928:=big3,8589934592:=big6,"46":="d6",<<"56">>:="e6",{["06"]}:="16"} = M3,
+    #{4294967296:=big5,18446744073709551616:=big4,"47":="d7",<<"57">>:="e7",{["07"]}:="17"} = M3,
+    #{4294967295:=big7,73786976294838206464:=big2,"48":="d8",<<"58">>:="e8",{["08"]}:="18"} = M3,
 
-%% Tests size(Map).
-%% not implemented, perhaps it shouldn't be either
+    ok.
 
-%t_size(Config) when is_list(Config) ->
-%    0 = size(#{}),
-%    1 = size(#{a=>1}),
-%    1 = size(#{a=>#{a=>1}}),
-%    2 = size(#{a=>1, b=>2}),
-%    3 = size(#{a=>1, b=>2, b=>"3"}),
-%    ok.
 
 t_map_size(Config) when is_list(Config) ->
     0 = map_size(id(#{})),
@@ -175,9 +671,10 @@ t_map_size(Config) when is_list(Config) ->
     false = map_is_size(M#{ "c" => 2}, 2),
 
     %% Error cases.
-    {'EXIT',{badarg,_}} = (catch map_size([])),
-    {'EXIT',{badarg,_}} = (catch map_size(<<1,2,3>>)),
-    {'EXIT',{badarg,_}} = (catch map_size(1)),
+    do_badmap(fun(T) ->
+                    {'EXIT',{{badmap,T},_}} =
+                      (catch map_size(T))
+              end),
     ok.
 
 map_is_size(M,N) when map_size(M) =:= N -> true;
@@ -191,13 +688,72 @@ t_update_literals(Config) when is_list(Config) ->
 	]),
     ok.
 
+t_update_literals_large(Config) when is_list(Config) ->
+    Map = id(#{ 10=>id(a0),20=>b0,30=>id("c0"),"40"=>"d0",<<"50">>=>id("e0"),{["00"]}=>"10",
+                11=>id(a1),21=>b1,31=>id("c1"),"41"=>"d1",<<"51">>=>id("e1"),{["01"]}=>"11",
+                12=>id(a2),22=>b2,32=>id("c2"),"42"=>"d2",<<"52">>=>id("e2"),{["02"]}=>"12",
+                13=>id(a3),23=>b3,33=>id("c3"),"43"=>"d3",<<"53">>=>id("e3"),{["03"]}=>"13",
+                14=>id(a4),24=>b4,34=>id("c4"),"44"=>"d4",<<"54">>=>id("e4"),{["04"]}=>"14",
+
+                15=>id(a5),25=>b5,35=>id("c5"),"45"=>"d5",<<"55">>=>id("e5"),{["05"]}=>"15",
+                16=>id(a6),26=>b6,36=>id("c6"),"46"=>"d6",<<"56">>=>id("e6"),{["06"]}=>"16",
+                17=>id(a7),27=>b7,37=>id("c7"),"47"=>"d7",<<"57">>=>id("e7"),{["07"]}=>"17",
+                18=>id(a8),28=>b8,38=>id("c8"),"48"=>"d8",<<"58">>=>id("e8"),{["08"]}=>"18",
+                19=>id(a9),29=>b9,39=>id("c9"),"49"=>"d9",<<"59">>=>id("e9"),{["09"]}=>"19",
+
+                10.0=>fa0,20.0=>id(fb0),30.0=>id("fc0"),
+                11.0=>fa1,21.0=>id(fb1),31.0=>id("fc1"),
+                12.0=>fa2,22.0=>id(fb2),32.0=>id("fc2"),
+                13.0=>fa3,23.0=>id(fb3),33.0=>id("fc3"),
+                14.0=>fa4,24.0=>id(fb4),34.0=>id("fc4"),
+
+                15.0=>fa5,25.0=>id(fb5),35.0=>id("fc5"),
+                16.0=>fa6,26.0=>id(fb6),36.0=>id("fc6"),
+                17.0=>fa7,27.0=>id(fb7),37.0=>id("fc7"),
+                18.0=>fa8,28.0=>id(fb8),38.0=>id("fc8"),
+                19.0=>fa9,29.0=>id(fb9),39.0=>id("fc9"),
+
+                #{ one => small, map => key } => id("small map key 1"),
+                #{ second => small, map => key } => "small map key 2",
+                #{ third => small, map => key } => "small map key 3",
+
+                #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                   11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                   12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                   13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                   14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                   15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                   16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                   17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                   18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                   19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+                #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                   11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                   12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                   13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                   14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                   15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                   k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                   17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                   18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                   19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => id("large map key 2") }),
+
+    #{x:="d",q:="4"} = loop_update_literals_x_q(Map, [
+		{"a","1"},{"b","2"},{"c","3"},{"d","4"}
+	]),
+    ok.
+
 loop_update_literals_x_q(Map, []) -> Map;
 loop_update_literals_x_q(Map, [{X,Q}|Vs]) ->
     loop_update_literals_x_q(Map#{q=>Q,x=>X},Vs).
 
 % test map updates with matching
 t_match_and_update_literals(Config) when is_list(Config) ->
-    Map = #{x=>0,y=>"untouched",z=>"also untouched",q=>1},
+    Map = #{ x=>0,y=>"untouched",z=>"also untouched",q=>1,
+             #{ "one" => small, map => key } => "small map key 1" },
     #{x:=16,q:=21,y:="untouched",z:="also untouched"} = loop_match_and_update_literals_x_q(Map, [
 	    {1,2},{3,4},{5,6},{7,8}
 	]),
@@ -211,8 +767,77 @@ t_match_and_update_literals(Config) when is_list(Config) ->
     #{ 4 := another_number, int := 3 } = M2#{ 4 => another_number },
     ok.
 
+t_match_and_update_literals_large(Config) when is_list(Config) ->
+    Map = id(#{ 10=>id(a0),20=>b0,30=>id("c0"),"40"=>"d0",<<"50">>=>id("e0"),{["00"]}=>"10",
+                11=>id(a1),21=>b1,31=>id("c1"),"41"=>"d1",<<"51">>=>id("e1"),{["01"]}=>"11",
+                12=>id(a2),22=>b2,32=>id("c2"),"42"=>"d2",<<"52">>=>id("e2"),{["02"]}=>"12",
+                13=>id(a3),23=>b3,33=>id("c3"),"43"=>"d3",<<"53">>=>id("e3"),{["03"]}=>"13",
+                14=>id(a4),24=>b4,34=>id("c4"),"44"=>"d4",<<"54">>=>id("e4"),{["04"]}=>"14",
+
+                15=>id(a5),25=>b5,35=>id("c5"),"45"=>"d5",<<"55">>=>id("e5"),{["05"]}=>"15",
+                16=>id(a6),26=>b6,36=>id("c6"),"46"=>"d6",<<"56">>=>id("e6"),{["06"]}=>"16",
+                17=>id(a7),27=>b7,37=>id("c7"),"47"=>"d7",<<"57">>=>id("e7"),{["07"]}=>"17",
+                18=>id(a8),28=>b8,38=>id("c8"),"48"=>"d8",<<"58">>=>id("e8"),{["08"]}=>"18",
+                19=>id(a9),29=>b9,39=>id("c9"),"49"=>"d9",<<"59">>=>id("e9"),{["09"]}=>"19",
+
+                10.0=>fa0,20.0=>id(fb0),30.0=>id("fc0"),
+                11.0=>fa1,21.0=>id(fb1),31.0=>id("fc1"),
+                12.0=>fa2,22.0=>id(fb2),32.0=>id("fc2"),
+                13.0=>fa3,23.0=>id(fb3),33.0=>id("fc3"),
+                14.0=>fa4,24.0=>id(fb4),34.0=>id("fc4"),
+
+                15.0=>fa5,25.0=>id(fb5),35.0=>id("fc5"),
+                16.0=>fa6,26.0=>id(fb6),36.0=>id("fc6"),
+                17.0=>fa7,27.0=>id(fb7),37.0=>id("fc7"),
+                18.0=>fa8,28.0=>id(fb8),38.0=>id("fc8"),
+                19.0=>fa9,29.0=>id(fb9),39.0=>id("fc9"),
+
+                x=>0,y=>"untouched",z=>"also untouched",q=>1,
+
+                #{ "one" => small, map => key } => id("small map key 1"),
+                #{ second => small, map => key } => "small map key 2",
+                #{ third => small, map => key } => "small map key 3",
+
+                #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                   11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                   12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                   13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                   14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                   15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                   16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                   17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                   18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                   19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+                #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                   11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                   12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                   13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                   14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                   15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                   k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                   17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                   18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                   19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => id("large map key 2") }),
+
+    #{x:=16,q:=21,y:="untouched",z:="also untouched"} = loop_match_and_update_literals_x_q(Map, [
+	    {1,2},{3,4},{5,6},{7,8}
+	]),
+    M0 = id(Map#{ "hi" => "hello", int => 3, <<"key">> => <<"value">>,
+                  4 => number, 18446744073709551629 => wat}),
+    M1 = id(Map#{}),
+    M2 = M1#{ "hi" => "hello", int => 3, <<"key">> => <<"value">>,
+              4 => number, 18446744073709551629 => wat},
+    M0 = M2,
+
+    #{ 4 := another_number, int := 3 } = M2#{ 4 => another_number },
+    ok.
+
 loop_match_and_update_literals_x_q(Map, []) -> Map;
-loop_match_and_update_literals_x_q(#{q:=Q0,x:=X0} = Map, [{X,Q}|Vs]) ->
+loop_match_and_update_literals_x_q(#{ q:=Q0, x:=X0,
+                                     #{ "one" => small, map => key } := "small map key 1" } = Map, [{X,Q}|Vs]) ->
     loop_match_and_update_literals_x_q(Map#{q=>Q0+Q,x=>X0+X},Vs).
 
 
@@ -225,9 +850,9 @@ t_update_map_expressions(Config) when is_list(Config) ->
     #{ a :=42, b:=42, c:=42 } = (maps:from_list([{a,1},{b,2},{c,3}]))#{ a := 42, b := 42, c := 42 },
     #{ "a" :=1, "b":=42, "c":=42 } = (maps:from_list([{"a",1},{"b",2}]))#{ "b" := 42, "c" => 42 },
 
-    %% Error cases, FIXME: should be 'badmap'?
-    {'EXIT',{{badarg,<<>>},_}} = (catch (id(<<>>))#{ a := 42, b => 2 }),
-    {'EXIT',{{badarg,[]},_}} = (catch (id([]))#{ a := 42, b => 2 }),
+    %% Error cases.
+    {'EXIT',{{badmap,<<>>},_}} = (catch (id(<<>>))#{ a := 42, b => 2 }),
+    {'EXIT',{{badmap,[]},_}} = (catch (id([]))#{ a := 42, b => 2 }),
     ok.
 
 
@@ -243,11 +868,80 @@ t_update_assoc(Config) when is_list(Config) ->
     M2 = M0#{3.0:=wrong,3.0=>new},
 
     %% Errors cases.
-    BadMap = id(badmap),
-    {'EXIT',{{badarg,BadMap},_}} = (catch BadMap#{nonexisting=>val}),
+    BadMap = id(not_a_good_map),
+    {'EXIT',{{badmap,BadMap},_}} = (catch BadMap#{nonexisting=>val}),
+
+    ok.
+
+t_update_assoc_large(Config) when is_list(Config) ->
+    M0 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19",
+
+               10.0=>fa0,20.0=>fb0,30.0=>"fc0",
+               11.0=>fa1,21.0=>fb1,31.0=>"fc1",
+               12.0=>fa2,22.0=>fb2,32.0=>"fc2",
+               13.0=>fa3,23.0=>fb3,33.0=>"fc3",
+               14.0=>fa4,24.0=>fb4,34.0=>"fc4",
+
+               15.0=>fa5,25.0=>fb5,35.0=>"fc5",
+               16.0=>fa6,26.0=>fb6,36.0=>"fc6",
+               17.0=>fa7,27.0=>fb7,37.0=>"fc7",
+               18.0=>fa8,28.0=>fb8,38.0=>"fc8",
+               19.0=>fa9,29.0=>fb9,39.0=>"fc9",
+
+               #{ one => small, map => key } => "small map key 1",
+               #{ second => small, map => key } => "small map key 2",
+               #{ third => small, map => key } => "small map key 3",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 2" }),
 
+
+    M1 = M0#{1=>42,2=>100,4=>[a,b,c]},
+    #{1:=42,2:=100,10.0:=fa0,4:=[a,b,c],25:=b5} = M1,
+    #{ 10:=43, 24:=b4, 15:=a5, 35:="c5", 2.0:=100, 13.0:=fa3, 4.0:=[a,b,c]} =
+        M0#{1.0=>float,10:=43,2.0=>wrong,2.0=>100,4.0=>[a,b,c]},
+
+    M2 = M0#{13.0=>new},
+    #{10:=a0,20:=b0,13.0:=new,"40":="d0",<<"50">>:="e0"} = M2,
+    M2 = M0#{13.0:=wrong,13.0=>new},
+
+    %% Errors cases.
+    BadMap = id(a_bad_map),
+    {'EXIT',{{badmap,BadMap},_}} = (catch BadMap#{nonexisting=>M0}),
     ok.
 
+
 t_update_exact(Config) when is_list(Config) ->
     M0 = id(#{1=>a,2=>b,3.0=>c,4=>d,5=>e}),
 
@@ -261,13 +955,148 @@ t_update_exact(Config) when is_list(Config) ->
     %% M2 = M0#{3=>wrong,3.0:=new}, %% FIXME
 
     %% Errors cases.
-    {'EXIT',{badarg,_}} = (catch M0#{nonexisting:=val}),
-    {'EXIT',{badarg,_}} = (catch M0#{1.0:=v,1.0=>v2}),
-    {'EXIT',{badarg,_}} = (catch M0#{42.0:=v,42:=v2}),
-    {'EXIT',{badarg,_}} = (catch M0#{42=>v1,42.0:=v2,42:=v3}),
+    do_badmap(fun(T) ->
+		      {'EXIT',{{badmap,T},_}} =
+			  (catch T#{nonexisting=>val})
+	      end),
+    Empty = id(#{}),
+    {'EXIT',{{badkey,nonexisting},_}} = (catch Empty#{nonexisting:=val}),
+    {'EXIT',{{badkey,nonexisting},_}} = (catch M0#{nonexisting:=val}),
+    {'EXIT',{{badkey,1.0},_}} = (catch M0#{1.0:=v,1.0=>v2}),
+    {'EXIT',{{badkey,_},_}} = (catch M0#{42.0:=v,42:=v2}),
+    {'EXIT',{{badkey,_},_}} = (catch M0#{42=>v1,42.0:=v2,42:=v3}),
+
+    %% Evaluation order.
+    BadMap = id([no,map]),
+    {'EXIT',{blurf,_}} =
+	(catch BadMap#{whatever:=id(error(blurf))}),
+    {'EXIT',{blurf,_}} =
+	(catch BadMap#{id(error(blurf)):=whatever}),
+    {'EXIT',{{badmap,BadMap},_}} =
+	(catch BadMap#{nonexisting:=whatever}),
+    ok.
+
+t_update_exact_large(Config) when is_list(Config) ->
+    M0 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19",
+
+               10.0=>fa0,20.0=>fb0,30.0=>"fc0",
+               11.0=>fa1,21.0=>fb1,31.0=>"fc1",
+               12.0=>fa2,22.0=>fb2,32.0=>"fc2",
+               13.0=>fa3,23.0=>fb3,33.0=>"fc3",
+               14.0=>fa4,24.0=>fb4,34.0=>"fc4",
+
+               15.0=>fa5,25.0=>fb5,35.0=>"fc5",
+               16.0=>fa6,26.0=>fb6,36.0=>"fc6",
+               17.0=>fa7,27.0=>fb7,37.0=>"fc7",
+               18.0=>fa8,28.0=>fb8,38.0=>"fc8",
+               19.0=>fa9,29.0=>fb9,39.0=>"fc9",
+
+               #{ one => small, map => key } => "small map key 1",
+               #{ second => small, map => key } => "small map key 2",
+               #{ third => small, map => key } => "small map key 3",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 2" }),
+
+
+    M1 = M0#{10:=42,<<"55">>:=100,10.0:=[a,b,c]},
+    #{ 10:=42,<<"55">>:=100,{["05"]}:="15",10.0:=[a,b,c],
+       #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+          11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+          12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+          13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+          14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+          15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+          16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+          17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+          18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+          19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } := "large map key 1" } = M1,
+
+    M1 = M0#{10:=wrong,10=>42,<<"55">>=>wrong,<<"55">>:=100,10.0:=[a,b,c]},
+
+    M2 = M0#{13.0:=new},
+    #{10:=a0,20:=b0,13.0:=new} = M2,
+    M2 = M0#{13.0=>wrong,13.0:=new},
+
+    %% Errors cases.
+    {'EXIT',{{badkey,nonexisting},_}} = (catch M0#{nonexisting:=val}),
+    {'EXIT',{{badkey,1.0},_}} = (catch M0#{1.0:=v,1.0=>v2}),
+    {'EXIT',{{badkey,_},_}} = (catch M0#{42.0:=v,42:=v2}),
+    {'EXIT',{{badkey,_},_}} = (catch M0#{42=>v1,42.0:=v2,42:=v3}),
+
+    ok.
 
+
+t_update_values(Config) when is_list(Config) ->
+    V0 = id(1337),
+    M0 = #{ a => 1, val => V0},
+    V1 = get_val(M0),
+    M1 = id(M0#{ val := [V0,V1], "wazzup" => 42 }),
+    [1337, {some_val, 1337}] = get_val(M1),
+    M2 = id(M1#{ <<42:333>> => 1337 }),
+    {bin_key,1337} = get_val(M2),
+
+    N = 110,
+    List = [{[I,1,2,3,I],{1,2,3,"wat",I}}|| I <- lists:seq(1,N)],
+
+    {_,_,#{val2 := {1,2,3,"wat",N}, val1 := [N,1,2,3,N]}} = lists:foldl(fun
+	    ({V2,V3},{Old2,Old3,Mi}) ->
+		ok = check_val(Mi,Old2,Old3),
+		#{ val1 := Old2, val2 := Old3 } = Mi,
+		{V2,V3, Mi#{ val1 := id(V2), val2 := V1, val2 => id(V3)}}
+	end, {none, none, #{val1=>none,val2=>none}},List),
+    ok.
+
+t_expand_map_update(Config) when is_list(Config) ->
+    M = #{<<"hello">> => <<"world">>}#{<<"hello">> := <<"les gens">>},
+    #{<<"hello">> := <<"les gens">>} = M,
     ok.
 
+t_export(Config) when is_list(Config) ->
+    Raclette = id(#{}),
+    case brie of brie -> Fromage = Raclette end,
+    Raclette = Fromage#{},
+    ok.
+
+check_val(#{val1:=V1, val2:=V2},V1,V2) -> ok.
+
+get_val(#{ <<42:333>> := V }) -> {bin_key, V};
+get_val(#{ "wazzup" := _, val := V}) -> V;
+get_val(#{ val := V }) -> {some_val, V}.
+
+
 t_guard_bifs(Config) when is_list(Config) ->
     true   = map_guard_head(#{a=>1}),
     false  = map_guard_head([]),
@@ -303,6 +1132,75 @@ t_guard_sequence(Config) when is_list(Config) ->
 	{'EXIT',{function_clause,_}} = (catch map_guard_sequence_2(#{b=>5})),
 	ok.
 
+t_guard_sequence_large(Config) when is_list(Config) ->
+    M0 = id(#{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00",03]}=>"10",
+               11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01",03]}=>"11",
+               12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02",03]}=>"12",
+               13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03",03]}=>"13",
+               14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04",03]}=>"14",
+
+               15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05",03]}=>"15",
+               16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06",03]}=>"16",
+               17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07",03]}=>"17",
+               18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08",03]}=>"18",
+               19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09",03]}=>"19",
+
+               10.0=>fa0,20.0=>fb0,30.0=>"fc0",
+               11.0=>fa1,21.0=>fb1,31.0=>"fc1",
+               12.0=>fa2,22.0=>fb2,32.0=>"fc2",
+               13.0=>fa3,23.0=>fb3,33.0=>"fc3",
+               14.0=>fa4,24.0=>fb4,34.0=>"fc4",
+
+               15.0=>fa5,25.0=>fb5,35.0=>"fc5",
+               16.0=>fa6,26.0=>fb6,36.0=>"fc6",
+               17.0=>fa7,27.0=>fb7,37.0=>"fc7",
+               18.0=>fa8,28.0=>fb8,38.0=>"fc8",
+               19.0=>fa9,29.0=>fb9,39.0=>"fc9",
+
+               #{ one => small, map => key } => "small map key 1",
+               #{ second => small, map => key } => "small map key 2",
+               #{ third => small, map => key } => "small map key 3",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 2" }),
+
+	{1, "a"} = map_guard_sequence_1(M0#{seq=>1,val=>id("a")}),
+	{2, "b"} = map_guard_sequence_1(M0#{seq=>2,val=>id("b")}),
+	{3, "c"} = map_guard_sequence_1(M0#{seq=>3,val=>id("c")}),
+	{4, "d"} = map_guard_sequence_1(M0#{seq=>4,val=>id("d")}),
+	{5, "e"} = map_guard_sequence_1(M0#{seq=>5,val=>id("e")}),
+
+	{1,M1}       = map_guard_sequence_2(M1 = id(M0#{a=>3})),
+	{2,M2}       = map_guard_sequence_2(M2 = id(M0#{a=>4, b=>4})),
+	{3,gg,M3}    = map_guard_sequence_2(M3 = id(M0#{a=>gg, b=>4})),
+	{4,sc,sc,M4} = map_guard_sequence_2(M4 = id(M0#{a=>sc, b=>3, c=>sc2})),
+	{5,kk,kk,M5} = map_guard_sequence_2(M5 = id(M0#{a=>kk, b=>other, c=>sc2})),
+
+	{'EXIT',{function_clause,_}} = (catch map_guard_sequence_1(M0#{seq=>6,val=>id("e")})),
+	{'EXIT',{function_clause,_}} = (catch map_guard_sequence_2(M0#{b=>5})),
+        ok.
+
 map_guard_sequence_1(#{seq:=1=Seq, val:=Val}) -> {Seq,Val};
 map_guard_sequence_1(#{seq:=2=Seq, val:=Val}) -> {Seq,Val};
 map_guard_sequence_1(#{seq:=3=Seq, val:=Val}) -> {Seq,Val};
@@ -322,6 +1220,65 @@ t_guard_update(Config) when is_list(Config) ->
     second = map_guard_update(#{y=>old}, #{x=>second,y=>old}),
     ok.
 
+t_guard_update_large(Config) when is_list(Config) ->
+    M0 = id(#{ 70=>a0,80=>b0,90=>"c0","40"=>"d0",<<"50">>=>"e0",{["00",03]}=>"10",
+               71=>a1,81=>b1,91=>"c1","41"=>"d1",<<"51">>=>"e1",{["01",03]}=>"11",
+               72=>a2,82=>b2,92=>"c2","42"=>"d2",<<"52">>=>"e2",{["02",03]}=>"12",
+               73=>a3,83=>b3,93=>"c3","43"=>"d3",<<"53">>=>"e3",{["03",03]}=>"13",
+               74=>a4,84=>b4,94=>"c4","44"=>"d4",<<"54">>=>"e4",{["04",03]}=>"14",
+
+               75=>a5,85=>b5,95=>"c5","45"=>"d5",<<"55">>=>"e5",{["05",03]}=>"15",
+               76=>a6,86=>b6,96=>"c6","46"=>"d6",<<"56">>=>"e6",{["06",03]}=>"16",
+               77=>a7,87=>b7,97=>"c7","47"=>"d7",<<"57">>=>"e7",{["07",03]}=>"17",
+               78=>a8,88=>b8,98=>"c8","48"=>"d8",<<"58">>=>"e8",{["08",03]}=>"18",
+               79=>a9,89=>b9,99=>"c9","49"=>"d9",<<"59">>=>"e9",{["09",03]}=>"19",
+
+               70.0=>fa0,80.0=>fb0,90.0=>"fc0",
+               71.0=>fa1,81.0=>fb1,91.0=>"fc1",
+               72.0=>fa2,82.0=>fb2,92.0=>"fc2",
+               73.0=>fa3,83.0=>fb3,93.0=>"fc3",
+               74.0=>fa4,84.0=>fb4,94.0=>"fc4",
+
+               75.0=>fa5,85.0=>fb5,95.0=>"fc5",
+               76.0=>fa6,86.0=>fb6,96.0=>"fc6",
+               77.0=>fa7,87.0=>fb7,97.0=>"fc7",
+               78.0=>fa8,88.0=>fb8,98.0=>"fc8",
+               79.0=>fa9,89.0=>fb9,99.0=>"fc9",
+
+               #{ one => small, map => key } => "small map key 1",
+               #{ second => small, map => key } => "small map key 2",
+               #{ third => small, map => key } => "small map key 3",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  16=>a6,26=>b6,36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 1",
+
+               #{ 10=>a0,20=>b0,30=>"c0","40"=>"d0",<<"50">>=>"e0",{["00"]}=>"10",
+                  11=>a1,21=>b1,31=>"c1","41"=>"d1",<<"51">>=>"e1",{["01"]}=>"11",
+                  12=>a2,22=>b2,32=>"c2","42"=>"d2",<<"52">>=>"e2",{["02"]}=>"12",
+                  13=>a3,23=>b3,33=>"c3","43"=>"d3",<<"53">>=>"e3",{["03"]}=>"13",
+                  14=>a4,24=>b4,34=>"c4","44"=>"d4",<<"54">>=>"e4",{["04"]}=>"14",
+
+                  15=>a5,25=>b5,35=>"c5","45"=>"d5",<<"55">>=>"e5",{["05"]}=>"15",
+                  k16=>a6,k26=>b6,k36=>"c6","46"=>"d6",<<"56">>=>"e6",{["06"]}=>"16",
+                  17=>a7,27=>b7,37=>"c7","47"=>"d7",<<"57">>=>"e7",{["07"]}=>"17",
+                  18=>a8,28=>b8,38=>"c8","48"=>"d8",<<"58">>=>"e8",{["08"]}=>"18",
+                  19=>a9,29=>b9,39=>"c9","49"=>"d9",<<"59">>=>"e9",{["09"]}=>"19" } => "large map key 2" }),
+
+
+    error  = map_guard_update(M0#{},M0#{}),
+    first  = map_guard_update(M0#{},M0#{x=>first}),
+    second = map_guard_update(M0#{y=>old}, M0#{x=>second,y=>old}),
+    ok.
+
 map_guard_update(M1, M2) when M1#{x=>first}  =:= M2 -> first;
 map_guard_update(M1, M2) when M1#{x=>second} =:= M2 -> second;
 map_guard_update(_, _) -> error.
@@ -351,6 +1308,42 @@ t_guard_receive(Config) when is_list(Config) ->
     done = call(Pid, done),
     ok.
 
+-define(t_guard_receive_large_procs, 50).
+
+t_guard_receive_large(Config) when is_list(Config) ->
+    M = lists:foldl(fun(_,#{procs := Ps } = M) ->
+                            M#{ procs := Ps#{ spawn_link(fun() -> grecv_loop() end) => 0 }}
+                    end, #{procs => #{}, done => 0}, lists:seq(1,?t_guard_receive_large_procs)),
+    lists:foreach(fun(Pid) ->
+                          Pid ! {self(), hello}
+                  end, maps:keys(maps:get(procs,M))),
+    ok = guard_receive_large_loop(M),
+    ok.
+
+guard_receive_large_loop(#{done := ?t_guard_receive_large_procs}) ->
+    ok;
+guard_receive_large_loop(M) ->
+    receive
+        #{pid := Pid, msg := hello} ->
+            case M of
+                #{done := Count, procs := #{Pid := 15}} ->
+                    Pid ! {self(), done},
+                    guard_receive_large_loop(M#{done := Count + 1});
+                #{procs := #{Pid := Count} = Ps} ->
+                    Pid ! {self(), hello},
+                    guard_receive_large_loop(M#{procs := Ps#{Pid := Count + 1}})
+            end
+    end.
+
+grecv_loop() ->
+    receive
+        {_, done} ->
+            ok;
+        {Pid, hello} ->
+            Pid ! #{pid=>self(), msg=>hello},
+            grecv_loop()
+    end.
+
 call(Pid, M) ->
     Pid ! {self(), M}, receive {Pid, Res} -> Res end.
 
@@ -381,6 +1374,14 @@ guard_receive_loop() ->
 
 t_list_comprehension(Config) when is_list(Config) ->
     [#{k:=1},#{k:=2},#{k:=3}] = [#{k=>I} || I <- [1,2,3]],
+    Ls = id([#{<<2:301>> => I, "wat" => I + 1} || I <- [1,2,3]]),
+    [#{<<2:301>>:=1,"wat":=2},#{<<2:301>>:=2,"wat":=3},#{<<2:301>>:=3,"wat":=4}] = Ls,
+    [{1,2},{2,3},{3,4}] = id([{I2,I1} || #{"wat" := I1, <<2:301>> := I2} <- Ls]),
+
+    Ks = lists:seq($a,$z),
+    Ms = [#{[K1,K2]=>{K1,K2}} || K1 <- Ks, K2 <- Ks],
+    [#{"aa" := {$a,$a}},#{"ab":={$a,$b}}|_] = Ms,
+    [#{"zz" := {$z,$z}},#{"zy":={$z,$y}}|_] = lists:reverse(Ms),
     ok.
 
 t_guard_fun(Config) when is_list(Config) ->
@@ -426,7 +1427,7 @@ t_map_sort_literals(Config) when is_list(Config) ->
     true  = #{ c => 1, b => 1, a => 1 } < id(#{ b => 1, c => 1, d => 1}),
     true  = #{ "a" => 1 } < id(#{ <<"a">> => 1}),
     false = #{ <<"a">> => 1 } < id(#{ "a" => 1}),
-    false = #{ 1 => 1 } < id(#{ 1.0 => 1}),
+    true  = #{ 1 => 1 } < id(#{ 1.0 => 1}),
     false = #{ 1.0 => 1 } < id(#{ 1 => 1}),
 
     %% value order
@@ -458,11 +1459,11 @@ t_bif_map_get(Config) when is_list(Config) ->
     "v4" = maps:get(<<"k2">>, M#{ <<"k2">> => "v4" }),
 
     %% error case
-    {'EXIT',{badarg, [{maps,get,_,_}|_]}} = (catch maps:get(a,[])),
-    {'EXIT',{badarg, [{maps,get,_,_}|_]}} = (catch maps:get(a,<<>>)),
-    {'EXIT',{bad_key,[{maps,get,_,_}|_]}} = (catch maps:get({1,1}, #{{1,1.0} => "tuple"})),
-    {'EXIT',{bad_key,[{maps,get,_,_}|_]}} = (catch maps:get(a,#{})),
-    {'EXIT',{bad_key,[{maps,get,_,_}|_]}} = (catch maps:get(a,#{ b=>1, c=>2})),
+    {'EXIT',{{badmap,[]},[{maps,get,_,_}|_]}} = (catch maps:get(a, [])),
+    {'EXIT',{{badmap,<<>>},[{maps,get,_,_}|_]}} = (catch maps:get(a, <<>>)),
+    {'EXIT',{{badkey,{1,1}},[{maps,get,_,_}|_]}} = (catch maps:get({1,1}, #{{1,1.0} => "tuple"})),
+    {'EXIT',{{badkey,a},[{maps,get,_,_}|_]}} = (catch maps:get(a, #{})),
+    {'EXIT',{{badkey,a},[{maps,get,_,_}|_]}} = (catch maps:get(a, #{ b=>1, c=>2})),
     ok.
 
 t_bif_map_find(Config) when is_list(Config) ->
@@ -486,8 +1487,10 @@ t_bif_map_find(Config) when is_list(Config) ->
     error = maps:find({1.0,1}, #{ a=>a, {1,1.0} => "tuple hi"}), % reverse types in tuple key
 
 
-    {'EXIT',{badarg,[{maps,find,_,_}|_]}} = (catch maps:find(a,id([]))),
-    {'EXIT',{badarg,[{maps,find,_,_}|_]}} = (catch maps:find(a,id(<<>>))),
+    {'EXIT',{{badmap,[]},[{maps,find,_,_}|_]}} =
+	(catch maps:find(a, id([]))),
+    {'EXIT',{{badmap,<<>>},[{maps,find,_,_}|_]}} =
+	(catch maps:find(a, id(<<>>))),
     ok.
 
 
@@ -512,26 +1515,26 @@ t_bif_map_is_key(Config) when is_list(Config) ->
     false = maps:is_key(1.0, maps:put(1, "number", M1)),
 
     %% error case
-    {'EXIT',{badarg,[{maps,is_key,_,_}|_]}} = (catch maps:is_key(a,id([]))),
-    {'EXIT',{badarg,[{maps,is_key,_,_}|_]}} = (catch maps:is_key(a,id(<<>>))),
+    {'EXIT',{{badmap,[]},[{maps,is_key,_,_}|_]}} = (catch maps:is_key(a, id([]))),
+    {'EXIT',{{badmap,<<>>},[{maps,is_key,_,_}|_]}} = (catch maps:is_key(a, id(<<>>))),
     ok.
 
 t_bif_map_keys(Config) when is_list(Config) ->
     [] = maps:keys(#{}),
 
-    [1,2,3,4,5] = maps:keys(#{ 1 => a, 2 => b, 3 => c, 4 => d, 5 => e}),
-    [1,2,3,4,5] = maps:keys(#{ 4 => d, 5 => e, 1 => a, 2 => b, 3 => c}),
+    [1,2,3,4,5] = lists:sort(maps:keys(#{ 1 => a, 2 => b, 3 => c, 4 => d, 5 => e})),
+    [1,2,3,4,5] = lists:sort(maps:keys(#{ 4 => d, 5 => e, 1 => a, 2 => b, 3 => c})),
 
-    % values in key order: [4,int,"hi",<<"key">>]
     M1 = #{ "hi" => "hello", int => 3, <<"key">> => <<"value">>, 4 => number},
-    [4,int,"hi",<<"key">>] = maps:keys(M1),
+    [4,int,"hi",<<"key">>] = lists:sort(maps:keys(M1)),
 
     %% error case
-    {'EXIT',{badarg,[{maps,keys,_,_}|_]}} = (catch maps:keys(1 bsl 65 + 3)),
-    {'EXIT',{badarg,[{maps,keys,_,_}|_]}} = (catch maps:keys(154)),
-    {'EXIT',{badarg,[{maps,keys,_,_}|_]}} = (catch maps:keys(atom)),
-    {'EXIT',{badarg,[{maps,keys,_,_}|_]}} = (catch maps:keys([])),
-    {'EXIT',{badarg,[{maps,keys,_,_}|_]}} = (catch maps:keys(<<>>)),
+    BigNum = 1 bsl 65 + 3,
+    {'EXIT',{{badmap,BigNum},[{maps,keys,_,_}|_]}} = (catch maps:keys(BigNum)),
+    {'EXIT',{{badmap,154},[{maps,keys,_,_}|_]}} = (catch maps:keys(154)),
+    {'EXIT',{{badmap,atom},[{maps,keys,_,_}|_]}} = (catch maps:keys(atom)),
+    {'EXIT',{{badmap,[]},[{maps,keys,_,_}|_]}} = (catch maps:keys([])),
+    {'EXIT',{{badmap,<<>>},[{maps,keys,_,_}|_]}} = (catch maps:keys(<<>>)),
     ok.
 
 t_bif_map_new(Config) when is_list(Config) ->
@@ -560,93 +1563,64 @@ t_bif_map_merge(Config) when is_list(Config) ->
 	{1,2} := "tuple", "hi" := "hello again", <<"key">> := <<"value">>} = maps:merge(M0,M1),
 
     %% error case
-    {'EXIT',{badarg,[{maps,merge,_,_}|_]}} = (catch maps:merge((1 bsl 65 + 3), <<>>)),
-    {'EXIT',{badarg,[{maps,merge,_,_}|_]}} = (catch maps:merge(<<>>, id(#{ a => 1}))),
-    {'EXIT',{badarg,[{maps,merge,_,_}|_]}} = (catch maps:merge(id(#{ a => 2}), <<>> )),
+    BigNum = 1 bsl 65 + 3,
+    {'EXIT',{{badmap,BigNum},[{maps,merge,_,_}|_]}} = (catch maps:merge(BigNum, <<>>)),
+    {'EXIT',{{badmap,<<>>},[{maps,merge,_,_}|_]}} = (catch maps:merge(<<>>, id(#{ a => 1}))),
+    {'EXIT',{{badmap,<<>>},[{maps,merge,_,_}|_]}} = (catch maps:merge(id(#{ a => 2}), <<>> )),
 
     ok.
 
-
 t_bif_map_put(Config) when is_list(Config) ->
     M0 = #{ "hi" => "hello", int => 3, <<"key">> => <<"value">>,
 	4 => number, 18446744073709551629 => wat},
 
     M1 = #{ "hi" := "hello"} = maps:put("hi", "hello", #{}),
 
-    ["hi"]    = maps:keys(M1),
-    ["hello"] = maps:values(M1),
+    true = is_members(["hi"],maps:keys(M1)),
+    true = is_members(["hello"],maps:values(M1)),
 
     M2 = #{ int := 3 } = maps:put(int, 3, M1),
 
-    [int,"hi"]  = maps:keys(M2),
-    [3,"hello"] = maps:values(M2),
+    true = is_members([int,"hi"],maps:keys(M2)),
+    true = is_members([3,"hello"],maps:values(M2)),
 
     M3 = #{ <<"key">> := <<"value">> } = maps:put(<<"key">>, <<"value">>, M2),
 
-    [int,"hi",<<"key">>]    = maps:keys(M3),
-    [3,"hello",<<"value">>] = maps:values(M3),
+    true = is_members([int,"hi",<<"key">>],maps:keys(M3)),
+    true = is_members([3,"hello",<<"value">>],maps:values(M3)),
 
     M4 = #{ 18446744073709551629 := wat } = maps:put(18446744073709551629, wat, M3),
 
-    [18446744073709551629,int,"hi",<<"key">>] = maps:keys(M4),
-    [wat,3,"hello",<<"value">>]               = maps:values(M4),
+    true = is_members([18446744073709551629,int,"hi",<<"key">>],maps:keys(M4)),
+    true = is_members([wat,3,"hello",<<"value">>],maps:values(M4)),
 
     M0 = #{ 4 := number } = M5 = maps:put(4, number, M4),
 
-    [4,18446744073709551629,int,"hi",<<"key">>] = maps:keys(M5),
-    [number,wat,3,"hello",<<"value">>]          = maps:values(M5),
+    true = is_members([4,18446744073709551629,int,"hi",<<"key">>],maps:keys(M5)),
+    true = is_members([number,wat,3,"hello",<<"value">>],maps:values(M5)),
 
     M6 = #{ <<"key">> := <<"other value">> } = maps:put(<<"key">>, <<"other value">>, M5),
 
-    [4,18446744073709551629,int,"hi",<<"key">>] = maps:keys(M6),
-    [number,wat,3,"hello",<<"other value">>]    = maps:values(M6),
+    true = is_members([4,18446744073709551629,int,"hi",<<"key">>],maps:keys(M6)),
+    true = is_members([number,wat,3,"hello",<<"other value">>],maps:values(M6)),
 
     %% error case
-    {'EXIT',{badarg,[{maps,put,_,_}|_]}} = (catch maps:put(1,a,1 bsl 65 + 3)),
-    {'EXIT',{badarg,[{maps,put,_,_}|_]}} = (catch maps:put(1,a,154)),
-    {'EXIT',{badarg,[{maps,put,_,_}|_]}} = (catch maps:put(1,a,atom)),
-    {'EXIT',{badarg,[{maps,put,_,_}|_]}} = (catch maps:put(1,a,[])),
-    {'EXIT',{badarg,[{maps,put,_,_}|_]}} = (catch maps:put(1,a,<<>>)),
-     ok.
-
-t_bif_map_remove(Config) when is_list(Config) ->
-    0  = erlang:map_size(maps:remove(some_key, #{})),
-
-    M0 = #{ "hi" => "hello", int => 3, <<"key">> => <<"value">>,
-	4 => number, 18446744073709551629 => wat},
-
-    M1 = maps:remove("hi", M0),
-    [4,18446744073709551629,int,<<"key">>] = maps:keys(M1),
-    [number,wat,3,<<"value">>]             = maps:values(M1),
-
-    M2 = maps:remove(int, M1),
-    [4,18446744073709551629,<<"key">>] = maps:keys(M2),
-    [number,wat,<<"value">>]           = maps:values(M2),
-
-    M3 = maps:remove(<<"key">>, M2),
-    [4,18446744073709551629] = maps:keys(M3),
-    [number,wat]             = maps:values(M3),
-
-    M4 = maps:remove(18446744073709551629, M3),
-    [4]      = maps:keys(M4),
-    [number] = maps:values(M4),
-
-    M5 = maps:remove(4, M4),
-    [] = maps:keys(M5),
-    [] = maps:values(M5),
+    BigNum = 1 bsl 65 + 3,
+    {'EXIT',{{badmap,BigNum},[{maps,put,_,_}|_]}} = (catch maps:put(1, a, BigNum)),
+    {'EXIT',{{badmap,154},[{maps,put,_,_}|_]}} = (catch maps:put(1, a, 154)),
+    {'EXIT',{{badmap,atom},[{maps,put,_,_}|_]}} = (catch maps:put(1, a, atom)),
+    {'EXIT',{{badmap,[]},[{maps,put,_,_}|_]}} = (catch maps:put(1, a, [])),
+    {'EXIT',{{badmap,<<>>},[{maps,put,_,_}|_]}} = (catch maps:put(1, a, <<>>)),
+    ok.
 
-    M0 = maps:remove(5,M0),
-    M0 = maps:remove("hi there",M0),
+is_members(Ks,Ls) when length(Ks) =/= length(Ls) -> false;
+is_members(Ks,Ls) -> is_members_do(Ks,Ls).
 
-    #{ "hi" := "hello", int := 3, 4 := number} = maps:remove(18446744073709551629,maps:remove(<<"key">>,M0)),
+is_members_do([],[]) -> true;
+is_members_do([],_) -> false;
+is_members_do([K|Ks],Ls) ->
+    is_members_do(Ks, lists:delete(K,Ls)).
 
-    %% error case
-    {'EXIT',{badarg,[{maps,remove,_,_}|_]}} = (catch maps:remove(a,1 bsl 65 + 3)),
-    {'EXIT',{badarg,[{maps,remove,_,_}|_]}} = (catch maps:remove(1,154)),
-    {'EXIT',{badarg,[{maps,remove,_,_}|_]}} = (catch maps:remove(a,atom)),
-    {'EXIT',{badarg,[{maps,remove,_,_}|_]}} = (catch maps:remove(1,[])),
-    {'EXIT',{badarg,[{maps,remove,_,_}|_]}} = (catch maps:remove(a,<<>>)),
-     ok.
 
 t_bif_map_update(Config) when is_list(Config) ->
     M0 = #{ "hi" => "hello", int => 3, <<"key">> => <<"value">>,
@@ -668,103 +1642,142 @@ t_bif_map_update(Config) when is_list(Config) ->
 	4 := number, 18446744073709551629 := wazzup} = maps:update(18446744073709551629, wazzup, M0),
 
     %% error case
-    {'EXIT',{badarg,[{maps,update,_,_}|_]}} = (catch maps:update(1,none,{})),
-    {'EXIT',{badarg,[{maps,update,_,_}|_]}} = (catch maps:update(1,none,<<"value">>)),
-    {'EXIT',{badarg,[{maps,update,_,_}|_]}} = (catch maps:update(5,none,M0)),
+    {'EXIT',{{badmap,{}},[{maps,update,_,_}|_]}} = (catch maps:update(1, none, {})),
+    {'EXIT',{{badmap,<<"value">>},[{maps,update,_,_}|_]}} =
+	(catch maps:update(1, none, <<"value">>)),
+    {'EXIT',{{badkey,5},[{maps,update,_,_}|_]}} = (catch maps:update(5, none, M0)),
 
     ok.
 
+t_bif_map_remove(Config) when is_list(Config) ->
+    0  = erlang:map_size(maps:remove(some_key, #{})),
+
+    M0 = #{ "hi" => "hello", int => 3, <<"key">> => <<"value">>,
+	4 => number, 18446744073709551629 => wat},
+
+    M1 = maps:remove("hi", M0),
+    true = is_members([4,18446744073709551629,int,<<"key">>],maps:keys(M1)),
+    true = is_members([number,wat,3,<<"value">>],maps:values(M1)),
+
+    M2 = maps:remove(int, M1),
+    true = is_members([4,18446744073709551629,<<"key">>],maps:keys(M2)),
+    true = is_members([number,wat,<<"value">>],maps:values(M2)),
+
+    M3 = maps:remove(<<"key">>, M2),
+    true = is_members([4,18446744073709551629],maps:keys(M3)),
+    true = is_members([number,wat],maps:values(M3)),
+
+    M4 = maps:remove(18446744073709551629, M3),
+    true = is_members([4],maps:keys(M4)),
+    true = is_members([number],maps:values(M4)),
+
+    M5 = maps:remove(4, M4),
+    [] = maps:keys(M5),
+    [] = maps:values(M5),
+
+    M0 = maps:remove(5,M0),
+    M0 = maps:remove("hi there",M0),
+
+    #{ "hi" := "hello", int := 3, 4 := number} = maps:remove(18446744073709551629,maps:remove(<<"key">>,M0)),
 
+    %% error case
+    BigNum = 1 bsl 65 + 3,
+    {'EXIT',{{badmap,BigNum},[{maps,remove,_,_}|_]}} = (catch maps:remove(a, BigNum)),
+    {'EXIT',{{badmap,154},[{maps,remove,_,_}|_]}} = (catch maps:remove(1, 154)),
+    {'EXIT',{{badmap,atom},[{maps,remove,_,_}|_]}} = (catch maps:remove(a, atom)),
+    {'EXIT',{{badmap,[]},[{maps,remove,_,_}|_]}} = (catch maps:remove(1, [])),
+    {'EXIT',{{badmap,<<>>},[{maps,remove,_,_}|_]}} = (catch maps:remove(a, <<>>)),
+    ok.
 
 t_bif_map_values(Config) when is_list(Config) ->
 
     [] = maps:values(#{}),
+    [1] = maps:values(#{a=>1}),
 
-    [a,b,c,d,e] = maps:values(#{ 1 => a, 2 => b, 3 => c, 4 => d, 5 => e}),
-    [a,b,c,d,e] = maps:values(#{ 4 => d, 5 => e, 1 => a, 2 => b, 3 => c}),
+    true = is_members([a,b,c,d,e],maps:values(#{ 1 => a, 2 => b, 3 => c, 4 => d, 5 => e})),
+    true = is_members([a,b,c,d,e],maps:values(#{ 4 => d, 5 => e, 1 => a, 2 => b, 3 => c})),
 
-    % values in key order: [4,int,"hi",<<"key">>]
     M1 = #{ "hi" => "hello", int => 3, <<"key">> => <<"value">>, 4 => number},
     M2 = M1#{ "hi" => "hello2", <<"key">> => <<"value2">> },
-    [number,3,"hello2",<<"value2">>] = maps:values(M2),
-    [number,3,"hello",<<"value">>]   = maps:values(M1),
+    true = is_members([number,3,"hello2",<<"value2">>],maps:values(M2)),
+    true = is_members([number,3,"hello",<<"value">>],maps:values(M1)),
 
     %% error case
-    {'EXIT',{badarg,[{maps,values,_,_}|_]}} = (catch maps:values(1 bsl 65 + 3)),
-    {'EXIT',{badarg,[{maps,values,_,_}|_]}} = (catch maps:values(atom)),
-    {'EXIT',{badarg,[{maps,values,_,_}|_]}} = (catch maps:values([])),
-    {'EXIT',{badarg,[{maps,values,_,_}|_]}} = (catch maps:values(<<>>)),
+    BigNum = 1 bsl 65 + 3,
+    {'EXIT',{{badmap,BigNum},[{maps,values,_,_}|_]}} = (catch maps:values(BigNum)),
+    {'EXIT',{{badmap,atom},[{maps,values,_,_}|_]}} = (catch maps:values(atom)),
+    {'EXIT',{{badmap,[]},[{maps,values,_,_}|_]}} = (catch maps:values([])),
+    {'EXIT',{{badmap,<<>>},[{maps,values,_,_}|_]}} = (catch maps:values(<<>>)),
     ok.
 
+
+
 t_erlang_hash(Config) when is_list(Config) ->
 
     ok = t_bif_erlang_phash2(),
     ok = t_bif_erlang_phash(),
     ok = t_bif_erlang_hash(),
-
     ok.
 
 t_bif_erlang_phash2() ->
-
     39679005 = erlang:phash2(#{}),
-    78942764 = erlang:phash2(#{ a => 1, "a" => 2, <<"a">> => 3, {a,b} => 4 }),
-    37338230 = erlang:phash2(#{ 1 => a, 2 => "a", 3 => <<"a">>, 4 => {a,b} }),
-    14363616 = erlang:phash2(#{ 1 => a }),
-    51612236 = erlang:phash2(#{ a => 1 }),
+    33667975 = erlang:phash2(#{ a => 1, "a" => 2, <<"a">> => 3, {a,b} => 4 }), % 78942764
+    95332690 = erlang:phash2(#{ 1 => a, 2 => "a", 3 => <<"a">>, 4 => {a,b} }), % 37338230
+    108954384 = erlang:phash2(#{ 1 => a }), % 14363616
+    59617982 = erlang:phash2(#{ a => 1 }), % 51612236
 
-    37468437 = erlang:phash2(#{{} => <<>>}),
-    44049159 = erlang:phash2(#{<<>> => {}}),
+    42770201 = erlang:phash2(#{{} => <<>>}), % 37468437
+    71687700 = erlang:phash2(#{<<>> => {}}), % 44049159
 
     M0 = #{ a => 1, "key" => <<"value">> },
     M1 = maps:remove("key",M0),
     M2 = M1#{ "key" => <<"value">> },
 
-    118679416 = erlang:phash2(M0),
-    51612236  = erlang:phash2(M1),
-    118679416 = erlang:phash2(M2),
+    70249457 = erlang:phash2(M0), % 118679416
+    59617982 = erlang:phash2(M1), % 51612236
+    70249457 = erlang:phash2(M2), % 118679416
     ok.
 
 t_bif_erlang_phash() ->
     Sz = 1 bsl 32,
-    268440612  = erlang:phash(#{},Sz),
-    1196461908 = erlang:phash(#{ a => 1, "a" => 2, <<"a">> => 3, {a,b} => 4 },Sz),
-    3944426064 = erlang:phash(#{ 1 => a, 2 => "a", 3 => <<"a">>, 4 => {a,b} },Sz),
-    1394238263 = erlang:phash(#{ 1 => a },Sz),
-    4066388227 = erlang:phash(#{ a => 1 },Sz),
+    1113425985 = erlang:phash(#{},Sz), % 268440612
+    1510068139 = erlang:phash(#{ a => 1, "a" => 2, <<"a">> => 3, {a,b} => 4 },Sz), % 1196461908
+    3182345590 = erlang:phash(#{ 1 => a, 2 => "a", 3 => <<"a">>, 4 => {a,b} },Sz), % 3944426064
+    2927531828 = erlang:phash(#{ 1 => a },Sz), % 1394238263
+    1670235874 = erlang:phash(#{ a => 1 },Sz), % 4066388227
 
-    1578050717 = erlang:phash(#{{} => <<>>},Sz),
-    1578050717 = erlang:phash(#{<<>> => {}},Sz), % yep, broken
+    3935089469 = erlang:phash(#{{} => <<>>},Sz), % 1578050717
+    71692856   = erlang:phash(#{<<>> => {}},Sz), % 1578050717
 
     M0 = #{ a => 1, "key" => <<"value">> },
     M1 = maps:remove("key",M0),
     M2 = M1#{ "key" => <<"value">> },
 
-    3590546636 = erlang:phash(M0,Sz),
-    4066388227 = erlang:phash(M1,Sz),
-    3590546636 = erlang:phash(M2,Sz),
+    2620391445 = erlang:phash(M0,Sz), % 3590546636
+    1670235874 = erlang:phash(M1,Sz), % 4066388227
+    2620391445 = erlang:phash(M2,Sz), % 3590546636
     ok.
 
 t_bif_erlang_hash() ->
     Sz = 1 bsl 27 - 1,
-    5158      = erlang:hash(#{},Sz),
-    71555838  = erlang:hash(#{ a => 1, "a" => 2, <<"a">> => 3, {a,b} => 4 },Sz),
-    5497225   = erlang:hash(#{ 1 => a, 2 => "a", 3 => <<"a">>, 4 => {a,b} },Sz),
-    126071654 = erlang:hash(#{ 1 => a },Sz),
-    126426236 = erlang:hash(#{ a => 1 },Sz),
+    39684169 = erlang:hash(#{},Sz),  % 5158
+    33673142 = erlang:hash(#{ a => 1, "a" => 2, <<"a">> => 3, {a,b} => 4 },Sz), % 71555838
+    95337869 = erlang:hash(#{ 1 => a, 2 => "a", 3 => <<"a">>, 4 => {a,b} },Sz), % 5497225
+    108959561 = erlang:hash(#{ 1 => a },Sz), % 126071654
+    59623150 = erlang:hash(#{ a => 1 },Sz), % 126426236
 
-    101655720 = erlang:hash(#{{} => <<>>},Sz),
-    101655720 = erlang:hash(#{<<>> => {}},Sz), % yep, broken
+    42775386 = erlang:hash(#{{} => <<>>},Sz), % 101655720
+    71692856 = erlang:hash(#{<<>> => {}},Sz), % 101655720
 
     M0 = #{ a => 1, "key" => <<"value">> },
     M1 = maps:remove("key",M0),
     M2 = M1#{ "key" => <<"value">> },
 
-    38260486  = erlang:hash(M0,Sz),
-    126426236 = erlang:hash(M1,Sz),
-    38260486  = erlang:hash(M2,Sz),
+    70254632 = erlang:hash(M0,Sz), % 38260486
+    59623150 = erlang:hash(M1,Sz), % 126426236
+    70254632 = erlang:hash(M2,Sz), % 38260486
     ok.
 
-
 t_map_encode_decode(Config) when is_list(Config) ->
     <<131,116,0,0,0,0>> = erlang:term_to_binary(#{}),
     Pairs = [
@@ -827,43 +1840,46 @@ t_map_encode_decode(Config) when is_list(Config) ->
 map_encode_decode_and_match([{K,V}|Pairs], EncodedPairs, M0) ->
     M1 = maps:put(K,V,M0),
     B0 = erlang:term_to_binary(M1),
-    Ls = lists:sort(fun(A,B) -> erts_internal:cmp_term(A,B) < 0 end, [{K, erlang:term_to_binary(K), erlang:term_to_binary(V)}|EncodedPairs]),
-    %% sort Ks and Vs according to term spec, then match it
-    KVbins = lists:foldr(fun({_,Kbin,Vbin}, Acc) -> [Kbin,Vbin | Acc] end, [], Ls),
-    ok = match_encoded_map(B0, length(Ls), KVbins),
+    Ls = [{erlang:term_to_binary(K), erlang:term_to_binary(V)}|EncodedPairs],
+    ok = match_encoded_map(B0, length(Ls), Ls),
     %% decode and match it
     M1 = erlang:binary_to_term(B0),
     map_encode_decode_and_match(Pairs,Ls,M1);
 map_encode_decode_and_match([],_,_) -> ok.
 
 match_encoded_map(<<131,116,Size:32,Encoded/binary>>,Size,Items) ->
-    match_encoded_map(Encoded,Items);
+    match_encoded_map_stripped_size(Encoded,Items,Items);
 match_encoded_map(_,_,_) -> no_match_size.
 
-match_encoded_map(<<>>,[]) -> ok;
-match_encoded_map(Bin,[<<131,Item/binary>>|Items]) ->
-    Size = erlang:byte_size(Item),
-    <<EncodedTerm:Size/binary, Bin1/binary>> = Bin,
-    EncodedTerm = Item, %% Asssert
-    match_encoded_map(Bin1,Items).
+match_encoded_map_stripped_size(<<>>,_,_) -> ok;
+match_encoded_map_stripped_size(B0,[{<<131,K/binary>>,<<131,V/binary>>}|Items],Ls) ->
+    Ksz = byte_size(K),
+    Vsz = byte_size(V),
+    case B0 of
+	<<K:Ksz/binary,V:Vsz/binary,B1/binary>> ->
+	    match_encoded_map_stripped_size(B1,Ls,Ls);
+	_ ->
+	    match_encoded_map_stripped_size(B0,Items,Ls)
+    end;
+match_encoded_map_stripped_size(_,[],_) -> fail.
 
 
 t_bif_map_to_list(Config) when is_list(Config) ->
     [] = maps:to_list(#{}),
-    [{a,1},{b,2}] = maps:to_list(#{a=>1,b=>2}),
-    [{a,1},{b,2},{c,3}] = maps:to_list(#{c=>3,a=>1,b=>2}),
-    [{a,1},{b,2},{g,3}] = maps:to_list(#{g=>3,a=>1,b=>2}),
-    [{a,1},{b,2},{g,3},{"c",4}] = maps:to_list(#{g=>3,a=>1,b=>2,"c"=>4}),
-    [{3,v2},{hi,v4},{{hi,3},v5},{"hi",v3},{<<"hi">>,v1}] = maps:to_list(#{
-	    <<"hi">>=>v1,3=>v2,"hi"=>v3,hi=>v4,{hi,3}=>v5}),
+    [{a,1},{b,2}] = lists:sort(maps:to_list(#{a=>1,b=>2})),
+    [{a,1},{b,2},{c,3}] = lists:sort(maps:to_list(#{c=>3,a=>1,b=>2})),
+    [{a,1},{b,2},{g,3}] = lists:sort(maps:to_list(#{g=>3,a=>1,b=>2})),
+    [{a,1},{b,2},{g,3},{"c",4}] = lists:sort(maps:to_list(#{g=>3,a=>1,b=>2,"c"=>4})),
+    [{3,v2},{hi,v4},{{hi,3},v5},{"hi",v3},{<<"hi">>,v1}] =
+	lists:sort(maps:to_list(#{<<"hi">>=>v1,3=>v2,"hi"=>v3,hi=>v4,{hi,3}=>v5})),
 
-    [{3,v7},{hi,v9},{{hi,3},v10},{"hi",v8},{<<"hi">>,v6}] = maps:to_list(#{
-	    <<"hi">>=>v1,3=>v2,"hi"=>v3,hi=>v4,{hi,3}=>v5,
-	    <<"hi">>=>v6,3=>v7,"hi"=>v8,hi=>v9,{hi,3}=>v10}),
+    [{3,v7},{hi,v9},{{hi,3},v10},{"hi",v8},{<<"hi">>,v6}] =
+	lists:sort(maps:to_list(#{<<"hi">>=>v1,3=>v2,"hi"=>v3,hi=>v4,{hi,3}=>v5,
+				  <<"hi">>=>v6,3=>v7,"hi"=>v8,hi=>v9,{hi,3}=>v10})),
 
     %% error cases
-    {'EXIT', {badarg,_}} = (catch maps:to_list(id(a))),
-    {'EXIT', {badarg,_}} = (catch maps:to_list(id(42))),
+    {'EXIT', {{badmap,a},_}} = (catch maps:to_list(id(a))),
+    {'EXIT', {{badmap,42},_}} = (catch maps:to_list(id(42))),
     ok.
 
 
@@ -988,16 +2004,390 @@ t_ets(_Config) ->
     ets:delete(Tid),
     ok.
 
-t_dets(_Config) ->
+t_build_and_match_aliasing(Config) when is_list(Config) ->
+    M1 = id(#{a=>1,b=>2,c=>3,d=>4}),
+    #{c:=C1=_=_=C2} = M1,
+    true = C1 =:= C2,
+    #{a:=A,a:=A,a:=A,b:=B,b:=B} = M1,
+    #{a:=A,a:=A,a:=A,b:=B,b:=B,b:=2} = M1,
+    #{a:=A=1,a:=A,a:=A,b:=B=2,b:=B,b:=2} = M1,
+    #{c:=C1, c:=_, c:=3, c:=_, c:=C2} = M1,
+    #{c:=C=_=3=_=C} = M1,
+
+    M2 = id(#{"a"=>1,"b"=>2,"c"=>3,"d"=>4}),
+    #{"a":=A2,"a":=A2,"a":=A2,"b":=B2,"b":=B2,"b":=2} = M2,
+    #{"a":=_,"a":=_,"a":=_,"b":=_,"b":=_,"b":=2} = M2,
+    ok.
+
+%% simple build and match variables
+t_build_and_match_variables(Config) when is_list(Config) ->
+    K0 = id(#{}),
+    K1 = id(1),       V1 = id(a),
+    K2 = id(2),       V2 = id(b),
+    K3 = id(3),       V3 = id("c"),
+    K4 = id("4"),     V4 = id("d"),
+    K5 = id(<<"5">>), V5 = id(<<"e">>),
+    K6 = id({"6",7}), V6 = id("f"),
+    K7 = id(#{ "a" => 3 }),
+    #{K1:=V1} = id(#{K1=>V1}),
+    #{K1:=V1,K2:=V2} = id(#{K1=>V1,K2=>V2}),
+    #{K1:=V1,K2:=V2,K3:=V3} = id(#{K1=>V1,K2=>V2,K3=>V3}),
+    #{K1:=V1,K2:=V2,K3:=V3,K4:=V4} = id(#{K1=>V1,K2=>V2,K3=>V3,K4=>V4}),
+    #{K1:=V1,K2:=V2,K3:=V3,K4:=V4,K5:=V5} = id(#{K1=>V1,K2=>V2,K3=>V3,K4=>V4,K5=>V5}),
+    #{K1:=V1,K2:=V2,K3:=V3,K4:=V4,K5:=V5,K6:=V6} = id(#{K1=>V1,K2=>V2,K3=>V3,K4=>V4,K5=>V5,K6=>V6}),
+
+    #{K5:=X,K5:=X=3,K4:=4} = id(#{K5=>3,K4=>4}),
+    #{K5:=X,<<"5">>:=X=3,K4:=4} = id(#{K5=>3,K4=>4}),
+    #{K5:=X,<<"5">>:=X=3,K4:=4} = id(#{<<"5">>=>3,K4=>4}),
+
+    #{ K4:=#{ K3:=#{K1:=V1, K2:=V2}}, K5:=V5} =
+	id(#{ K5=>V5, K4=>#{ K3=>#{K2 => V2, K1 => V1}}}),
+    #{ K4 := #{ K5 := Res }, K6 := Res} = id(#{K4=>#{K5 => 99}, K6 => 99}),
+
+    %% has keys
+    #{a :=_,b :=_,K1:=_,K2:=_,K3:=V3,K4:=ResKey,K4:=ResKey,"4":=ResKey,"4":="ok"} =
+	id(#{ a=>1, b=>1, K1=>V1, K2=>V2, K3=>V3, K4=>"nope", "4"=>"ok" }),
+
+    %% function
+    ok = match_function_map_neg_keys(#{ -1 => a, -2 => b, -3 => c }),
+
+    %% map key
+    #{ K0 := 42 } = id(#{ K0 => 42 }),
+    #{ K7 := 42 } = id(#{ K7 => 42 }),
+
+    %% nil key
+    KNIL = id([]),
+    #{KNIL:=ok,1:=2} = id(#{KNIL=>ok,1=>2}),
+
+    Bin = <<0:258>>,
+    #{ Bin := "three" } = id(#{<<0:258>> =>"three"}),
+
+    %% error case
+    {'EXIT',{{badmatch,_},_}} = (catch (#{K5:=3,x:=2} = id(#{K5=>3}))),
+    {'EXIT',{{badmatch,_},_}} = (catch (#{K5:=2} = id(#{K5=>3}))),
+    {'EXIT',{{badmatch,_},_}} = (catch (#{K5:=3} = id({a,b,c}))),
+    {'EXIT',{{badmatch,_},_}} = (catch (#{K5:=3} = id(#{K6=>3}))),
+    {'EXIT',{{badmatch,_},_}} = (catch (#{K5:=3} = id(K7))),
+    {'EXIT',{{badmatch,_},_}} = (catch (#{K7:=3} = id(#{K7=>42}))),
+    ok.
+
+
+match_function_map_neg_keys(#{ -1 := a, -2 := b, -3 := c }) -> ok.
+
+t_update_assoc_variables(Config) when is_list(Config) ->
+    K1 = id(1),
+    K2 = id(2),
+    K3 = id(3.0),
+    K4 = id(4),
+    K5 = id(5),
+    K6 = id(2.0),
+
+    M0 = #{K1=>a,K2=>b,K3=>c,K4=>d,K5=>e},
+
+    M1 = M0#{K1=>42,K2=>100,K4=>[a,b,c]},
+    #{1:=42,2:=100,3.0:=c,4:=[a,b,c],5:=e} = M1,
+    #{1:=42,2:=b,4:=d,5:=e,2.0:=100,K3:=c,4.0:=[a,b,c]} = M0#{1.0=>float,1:=42,2.0=>wrong,K6=>100,4.0=>[a,b,c]},
+
+    M2 = M0#{K3=>new},
+    #{1:=a,2:=b,K3:=new,4:=d,5:=e} = M2,
+    M2 = M0#{3.0:=wrong,K3=>new},
+
+    #{ <<0:258>> := val } = id(M0#{<<0:258>> => val}), %% binary limitation
+
+    %% Errors cases.
+    BadMap = id(a_bad_map),
+    {'EXIT',{{badmap,BadMap},_}} = (catch BadMap#{nonexisting=>val}),
+    {'EXIT',{{badmap,<<>>},_}} = (catch <<>>#{nonexisting=>val}),
+    ok.
+
+t_update_exact_variables(Config) when is_list(Config) ->
+    K1 = id(1),
+    K2 = id(2),
+    K3 = id(3.0),
+    K4 = id(4),
+
+    M0 = id(#{1=>a,2=>b,3.0=>c,4=>d,5=>e}),
+
+    M1 = M0#{K1:=42,K2:=100,K4:=[a,b,c]},
+    #{1:=42,2:=100,3.0:=c,K4:=[a,b,c],5:=e} = M1,
+    M1 = M0#{K1:=wrong,1:=also_wrong,K1=>42,2=>wrong,K2:=100,4:=[a,b,c]},
+
+    M2 = M0#{K3:=new},
+    #{1:=a,K2:=b,3.0:=new,K4:=d,5:=e} = M2,
+    M2 = M0#{3.0=>wrong,K3:=new},
+    true = M2 =/= M0#{3=>right,3.0:=new},
+    #{ 3 := right, 3.0 := new } = M0#{3=>right,K3:=new},
+
+    M3 = id(#{ 1 => val}),
+    #{1 := update2,1.0 := new_val4} = M3#{
+	1.0 => new_val1, K1 := update, K1=> update3,
+	K1 := update2, 1.0 := new_val2, 1.0 => new_val3,
+	1.0 => new_val4 },
+
+    %% Errors cases.
+    {'EXIT',{{badmap,_},_}} = (catch ((id(nil))#{ a := b })),
+    {'EXIT',{{badmap,_},_}} = (catch <<>>#{nonexisting:=val}),
+
+    {'EXIT',{{badkey,nonexisting},_}} = (catch M0#{nonexisting:=val}),
+    {'EXIT',{{badkey,1.0},_}} = (catch M0#{1.0:=v,1.0=>v2}),
+    {'EXIT',{{badkey,_},_}} = (catch M0#{42.0:=v,42:=v2}),
+    {'EXIT',{{badkey,_},_}} = (catch M0#{42=>v1,42.0:=v2,42:=v3}),
+    {'EXIT',{{badkey,_},_}} = (catch M0#{<<0:257>> := val}), %% limitation
+    ok.
+
+t_nested_pattern_expressions(Config) when is_list(Config) ->
+    K1 = id("hello"),
+    %K2 = id({ok}),
+    [_,_,#{ <<"hi">> := wat, K1 := 42 }|_] = id([k,k,#{<<"hi">> => wat, K1 => 42}]),
+    [_,_,#{ -1 := wat, K1 := 42 }|_] = id([k,k,#{-1 => wat, K1 => 42}]),
+    [_,_,{#{ -1 := #{ {-3,<<0:300>>} := V1 }, K1 := 42 },3}|_] = id([k,k,{#{-1 => #{{-3,<<0:300>>}=>"hi"}, K1 => 42},3}]),
+    "hi" = V1,
+    %[k,#{ {-1,K1,[]} := {wat,K1}, K2 := 42 }|_] = id([k,#{{-1,K1,[]} => {wat,K1}, K2 => 42}]),
+    %[k,#{ [-1,K2,[]] := {wat,K1}, K1 := 42 }|_] = id([k,#{[-1,K2,[]] => {wat,K1}, K1 => 42}]),
+    ok.
+
+t_guard_update_variables(Config) when is_list(Config) ->
+    error  = map_guard_update_variables(n,#{},#{}),
+    first  = map_guard_update_variables(x,#{}, #{x=>first}),
+    second = map_guard_update_variables(x,#{y=>old}, #{x=>second,y=>old}),
+    third  = map_guard_update_variables(x,#{x=>old,y=>old}, #{x=>third,y=>old}),
+    fourth = map_guard_update_variables(x,#{x=>old,y=>old}, #{x=>4,y=>new}),
+    ok.
+
+map_guard_update_variables(K,M1,M2) when M1#{K=>first}    =:= M2 -> first;
+map_guard_update_variables(K,M1,M2) when M1#{K=>second}   =:= M2 -> second;
+map_guard_update_variables(K,M1,M2) when M1#{K:=third}    =:= M2 -> third;
+map_guard_update_variables(K,M1,M2) when M1#{K:=4,y=>new} =:= M2 -> fourth;
+map_guard_update_variables(_,_,_) -> error.
+
+t_guard_sequence_variables(Config) when is_list(Config) ->
+    {1,"a"} = map_guard_sequence_var_1(a,#{seq=>1,a=>id("a"),b=>no}),
+    {2,"b"} = map_guard_sequence_var_1(b,#{seq=>2,b=>id("b"),a=>no}),
+    {3,"c"} = map_guard_sequence_var_1(a,#{seq=>3,a=>id("c"),b=>no}),
+    {4,"d"} = map_guard_sequence_var_1(b,#{seq=>4,b=>id("d"),a=>no}),
+    {4,4}   = map_guard_sequence_var_1(seq,#{seq=>4}),
+    {4,4,y} = map_guard_sequence_var_1(seq,#{seq=>4,b=>id("d"),a=>y}),
+    {5,"d"} = map_guard_sequence_var_1(b,#{seq=>5,b=>id("d"),a=>y}),
+
+    %% error case
+    {'EXIT',{{case_clause,_},_}} = (catch map_guard_sequence_var_1("a",#{seq=>4,val=>id("e")})),
+    ok.
+
+
+map_guard_sequence_var_1(K,M) ->
+    case M of
+	#{seq:=1=Seq, K:=Val} -> {Seq,Val};
+	#{seq:=2=Seq, K:=Val} -> {Seq,Val};
+	#{seq:=3=Seq, K:=Val} -> {Seq,Val};
+	#{K:=4=Seq,   K:=Val1,a:=Val2} -> {Seq,Val1,Val2};
+	#{seq:=4=Seq, K:=Val} -> {Seq,Val};
+	#{K:=4=Seq,   K:=Val} -> {Seq,Val};
+	#{seq:=5=Seq, K:=Val} -> {Seq,Val}
+    end.
+
+
+t_guard_sequence_mixed(Config) when is_list(Config) ->
+    M0 = id(#{ a=>1, b=>1, c=>1, d=>1, e=>1, f=>1, g=>1, h=>1 }),
+    M1 = id(M0#{ d := 3 }),
+    1 = map_guard_sequence_mixed(a,d,M1),
+    M2 = id(M1#{ b := 2, d := 4, h := 2 }),
+    2 = map_guard_sequence_mixed(a,d,M2),
+    M3 = id(M2#{ b := 3, e := 5, g := 3 }),
+    3 = map_guard_sequence_mixed(a,e,M3),
+    M4 = id(M3#{ c := 4, e := 6, h := 1 }),
+    4 = map_guard_sequence_mixed(a,e,M4),
+    M5 = id(M4#{ c := 5, f := 7, g := 2 }),
+    5 = map_guard_sequence_mixed(a,f,M5),
+    M6 = id(M5#{ c := 6, f := 8, h := 3 }),
+    6 = map_guard_sequence_mixed(a,f,M6),
+
+    %% error case
+    {'EXIT',{{case_clause,_},_}} = (catch map_guard_sequence_mixed(a,b,M0)),
+    ok.
+
+map_guard_sequence_mixed(K1,K2,M) ->
+    case M of
+	#{ K1 := 1, b := 1, K2 := 3, g := 1} -> 1;
+	#{ K1 := 1, b := 2, K2 := 4, h := 2} -> 2;
+	#{ K1 := 1, b := 3, K2 := 5, g := 3} -> 3;
+	#{ K1 := 1, c := 4, K2 := 6, h := 1} -> 4;
+	#{ K1 := 1, c := 5, K2 := 7, g := 2} -> 5;
+	#{ K1 := 1, c := 6, K2 := 8, h := 3} -> 6
+    end.
+
+
+
+t_frequency_table(Config) when is_list(Config) ->
+    random:seed({13,1337,54}),  % pseudo random
+    N = 1000,
+    Ts = rand_terms(N),
+    #{ n:=N, tf := Tf } = frequency_table(Ts,#{ n=>0, tf => #{}}),
+    ok = check_frequency(Ts,Tf),
+    ok.
+
+
+frequency_table([T|Ts], M) ->
+    case M of
+	#{ n := N, tf := #{ T := C } = F } ->
+	    frequency_table(Ts,M#{ n := N + 1, tf := F#{ T := C + 1 }});
+	#{ n := N, tf := F } ->
+	    frequency_table(Ts,M#{ n := N + 1, tf := F#{ T => 1 }})
+    end;
+frequency_table([], M) -> M.
+
+
+check_frequency(Ts,Tf) ->
+    check_frequency(Ts,Tf,dict:new()).
+
+check_frequency([T|Ts],Tf,D) ->
+    case dict:find(T,D) of
+	error  -> check_frequency(Ts,Tf,dict:store(T,1,D));
+	{ok,C} -> check_frequency(Ts,Tf,dict:store(T,C+1,D))
+    end;
+check_frequency([],Tf,D) ->
+    validate_frequency(dict:to_list(D),Tf).
+
+validate_frequency([{T,C}|Fs],Tf) ->
+    case Tf of
+	#{ T := C } -> validate_frequency(Fs,Tf);
+	_ -> error
+    end;
+validate_frequency([], _) -> ok.
+
+
+%% aux
+
+rand_terms(0) -> [];
+rand_terms(N) -> [rand_term()|rand_terms(N-1)].
+
+rand_term() ->
+    case random:uniform(6) of
+	1 -> rand_binary();
+	2 -> rand_number();
+	3 -> rand_atom();
+	4 -> rand_tuple();
+	5 -> rand_list();
+	6 -> rand_map()
+    end.
+
+rand_binary() ->
+    case random:uniform(3) of
+	1 -> <<>>;
+	2 -> <<"hi">>;
+	3 -> <<"message text larger than 64 bytes. yep, message text larger than 64 bytes.">>
+    end.
+
+rand_number() ->
+    case random:uniform(3) of
+	1 -> random:uniform(5);
+	2 -> float(random:uniform(5));
+	3 -> 1 bsl (63 + random:uniform(3))
+    end.
+
+rand_atom() ->
+    case random:uniform(3) of
+	1 -> hi;
+	2 -> some_atom;
+	3 -> some_other_atom
+    end.
+
+
+rand_tuple() ->
+    case random:uniform(3) of
+	1 -> {ok, rand_term()}; % careful
+	2 -> {1, 2, 3};
+	3 -> {<<"yep">>, 1337}
+    end.
+
+rand_list() ->
+    case random:uniform(3) of
+	1 -> "hi";
+	2 -> [1,rand_term()]; % careful
+	3 -> [improper|list]
+    end.
+
+rand_map() ->
+    case random:uniform(3) of
+	1 -> #{ hi => 3 };
+	2 -> #{ wat => rand_term(), other => 3 };  % careful
+	3 -> #{ hi => 42, other => 42, yet_anoter => 1337 }
+    end.
+
+
+t_build_and_match_over_alloc(Config) when is_list(Config) ->
+    Ls = id([1,2,3]),
+    V0 = [a|Ls],
+    M0 = id(#{ "a" => V0 }),
+    #{ "a" := V1 } = M0,
+    V2 = id([c|Ls]),
+    M2 = id(#{ "a" => V2 }),
+    #{ "a" := V3 } = M2,
+    {[a,1,2,3],[c,1,2,3]} = id({V1,V3}),
+    ok.
+
+t_build_and_match_empty_val(Config) when is_list(Config) ->
+    F = fun(#{ "hi":=_,{1,2}:=_,1337:=_}) -> ok end,
+    ok = F(id(#{"hi"=>ok,{1,2}=>ok,1337=>ok})),
+
+    %% error case
+    case (catch (F(id(#{"hi"=>ok})))) of
+	{'EXIT',{function_clause,_}} -> ok;
+	{'EXIT', {{case_clause,_},_}} -> {comment,inlined};
+	Other ->
+	    test_server:fail({no_match, Other})
+    end.
+
+t_build_and_match_val(Config) when is_list(Config) ->
+    F = fun
+	(#{ "hi" := first,  v := V}) -> {1,V};
+	(#{ "hi" := second, v := V}) -> {2,V}
+    end,
+
+
+    {1,"hello"}  = F(id(#{"hi"=>first,v=>"hello"})),
+    {2,"second"} = F(id(#{"hi"=>second,v=>"second"})),
+
+    %% error case
+    case (catch (F(id(#{"hi"=>ok})))) of
+	{'EXIT',{function_clause,_}} -> ok;
+	{'EXIT', {{case_clause,_},_}} -> {comment,inlined};
+	Other ->
+	    test_server:fail({no_match, Other})
+    end.
+
+t_build_and_match_nil(Config) when is_list(Config) ->
+    %% literals removed the coverage
+    V1 = id(cookie),
+    V2 = id(cake),
+    V3 = id(crisps),
+
+    #{ [] := V1, "treat" := V2, {your,treat} := V3 } = id(#{
+	    {your,treat} => V3,
+	    "treat" => V2, 
+	    [] => V1 }),
+    #{ [] := V3, [] := V3 } = id(#{ [] => V1, [] => V3 }),
+    ok.
+
+t_build_and_match_structure(Config) when is_list(Config) ->
+    V2 = id("it"),
+    S = id([42,{"hi", "=)", #{ "a" => 42, any => any, val => "get_" ++ V2}}]),
+
+    %% match deep map values
+    V2 = case S of
+	[42,{"hi",_, #{ "a" := 42, val := "get_" ++ V1, any := _ }}] -> V1
+    end,
+    %% match deep map
+    ok = case S of
+	[42,{"hi",_, #{ }}] -> ok
+    end,
     ok.
 
-getmsg(_Tracer) ->
-    receive V -> V after 100 -> timeout end.
 
-trace_collector(Msg,Parent) ->
-    io:format("~p~n",[Msg]),
-    Parent ! Msg,
-    Parent.
+do_badmap(Test) ->
+    Terms = [Test,fun erlang:abs/1,make_ref(),self(),0.0/id(-1),
+	     <<1:1>>,<<>>,<<1,2,3>>,
+	     [],{a,b,c},[a,b],atom,10.0,42,(1 bsl 65) + 3],
+    [Test(T) || T <- Terms].
 
 %% Use this function to avoid compile-time evaluation of an expression.
 id(I) -> I.
diff --git a/lib/debugger/vsn.mk b/lib/debugger/vsn.mk
index b82f0f4e37..b6fd4e8e44 100644
--- a/lib/debugger/vsn.mk
+++ b/lib/debugger/vsn.mk
@@ -1 +1 @@
-DEBUGGER_VSN = 4.0.3
+DEBUGGER_VSN = 4.1
diff --git a/lib/dialyzer/doc/src/dialyzer.xml b/lib/dialyzer/doc/src/dialyzer.xml
index e482b1e6f8..fc076c24a6 100644
--- a/lib/dialyzer/doc/src/dialyzer.xml
+++ b/lib/dialyzer/doc/src/dialyzer.xml
@@ -4,7 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>2006</year><year>2014</year>
+      <year>2006</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -70,7 +70,7 @@
 		[--build_plt] [--add_to_plt] [--remove_from_plt]
 		[--check_plt] [--no_check_plt] [--plt_info] [--get_warnings]
                 [--dump_callgraph file] [--no_native] [--fullpath]
-                [--statistics]</code>
+                [--statistics] [--no_native_cache]</code>
     <p>Options:</p>
     <taglist>
       <tag><c><![CDATA[files_or_dirs]]></c> (for backwards compatibility also
@@ -139,7 +139,11 @@
       <tag><c><![CDATA[-Wwarn]]></c></tag>
       <item>A family of options which selectively turn on/off warnings
         (for help on the names of warnings use
-        <c><![CDATA[dialyzer -Whelp]]></c>).</item>
+        <c><![CDATA[dialyzer -Whelp]]></c>).
+        Note that the options can also be given in the file with a
+        <c>-dialyzer()</c> attribute. See <seealso
+        marker="#suppression">Requesting or Suppressing Warnings in
+        Source Files</seealso> below for details.</item>
       <tag><c><![CDATA[--shell]]></c></tag>
       <item>Do not disable the Erlang shell while running the GUI.</item>
       <tag><c><![CDATA[--version]]></c> (or <c><![CDATA[-v]]></c>)</tag>
@@ -194,6 +198,11 @@
          heuristically performs when dialyzing many files; this avoids the
          compilation time but it may result in (much) longer analysis
          time.</item>
+       <tag><c><![CDATA[--no_native_cache]]></c></tag>
+       <item>By default, Dialyzer caches the results of native compilation in the
+         <c>$XDG_CACHE_HOME/erlang/dialyzer_hipe_cache</c> directory.
+         <c>XDG_CACHE_HOME</c> defaults to <c>$HOME/.cache</c>.
+         Use this option to disable caching.</item>
        <tag><c><![CDATA[--fullpath]]></c></tag>
        <item>Display the full path names of files for which warnings are emitted.</item>
        <tag><c><![CDATA[--gui]]></c></tag>
@@ -227,6 +236,8 @@
       <tag><c><![CDATA[-Wno_behaviours]]></c></tag>
       <item>Suppress warnings about behaviour callbacks which drift from the
        published recommended interfaces.</item>
+      <tag><c><![CDATA[-Wno_missing_calls]]></c></tag>
+      <item>Suppress warnings about calls to missing functions.</item>
       <tag><c><![CDATA[-Wno_undefined_callbacks]]></c></tag>
       <item>Suppress warnings about behaviours that have no
         <c>-callback</c> attributes for their callbacks.</item>
@@ -242,9 +253,16 @@
       analysis that finds data races performs intra-procedural data flow analysis
       and can sometimes explode in time. Enable it at your own risk.
       </item>
-      <tag><c><![CDATA[-Wunderspecs]]></c>***</tag>
+i      <tag><c><![CDATA[-Wunderspecs]]></c>***</tag>
       <item>Warn about underspecified functions
       (the -spec is strictly more allowing than the success typing).</item>
+      <tag><c><![CDATA[-Wunknown]]></c>***</tag>
+      <item>Let warnings about unknown functions and types affect the
+      exit status of the command line version. The default is to ignore
+      warnings about unknown functions and types when setting the exit
+      status. When using the Dialyzer from Erlang, warnings about unknown
+      functions and types are returned; the default is not to return
+      these warnings.</item>
     </taglist>
     <p>The following options are also available but their use is not
       recommended: (they are mostly for Dialyzer developers and internal
@@ -269,6 +287,71 @@
       given from the command line, so please refer to the sections above for
       a description of these.</p>
   </section>
+
+  <section>
+    <marker id="suppression"></marker>
+    <title>Requesting or Suppressing Warnings in Source Files</title>
+    <p>
+      The <c>-dialyzer()</c> attribute can be used for turning off
+      warnings in a module by specifying functions or warning options.
+      For example, to turn off all warnings for the function
+      <c>f/0</c>, include the following line:
+    </p>
+<code type="none">
+-dialyzer({nowarn_function, f/0}).
+</code>
+    <p>To turn off warnings for improper lists, add the following line
+      to the source file:
+    </p>
+<code type="none">
+-dialyzer(no_improper_lists).
+</code>
+    <p>The <c>-dialyzer()</c> attribute is allowed after function
+    declarations. Lists of warning options or functions are allowed:
+    </p>
+<code type="none">
+-dialyzer([{nowarn_function, [f/0]}, no_improper_lists]).
+</code>
+    <p>
+      Warning options can be restricted to functions:
+    </p>
+<code type="none">
+-dialyzer({no_improper_lists, g/0}).
+</code>
+<code type="none">
+-dialyzer({[no_return, no_match], [g/0, h/0]}).
+</code>
+    <p>
+      For help on the warning options use <c>dialyzer -Whelp</c>. The
+      options are also enumerated <seealso
+      marker="#gui/1">below</seealso> (<c>WarnOpts</c>).
+    </p>
+    <note>
+      <p>
+        The <c>-dialyzer()</c> attribute is not checked by the Erlang
+              Compiler, but by the Dialyzer itself.
+      </p>
+    </note>
+    <note>
+      <p>
+        The warning option <c>-Wrace_conditions</c> has no effect when
+        set in source files.
+      </p>
+    </note>
+    <p>
+      The <c>-dialyzer()</c> attribute can also be used for turning on
+      warnings. For instance, if a module has been fixed regarding
+      unmatched returns, adding the line
+    </p>
+<code type="none">
+-dialyzer(unmatched_returns).
+</code>
+    <p>
+      can help in assuring that no new unmatched return warnings are
+      introduced.
+    </p>
+  </section>
+
   <funcs>
     <func>
       <name>gui() -> ok | {error, Msg}</name>
@@ -283,13 +366,14 @@
 OptList  :: [Option]
 Option   :: {files,          [Filename :: string()]}
           | {files_rec,      [DirName :: string()]}
-          | {defines,        [{Macro: atom(), Value : term()}]}
+          | {defines,        [{Macro :: atom(), Value :: term()}]}
           | {from,           src_code | byte_code}   %% Defaults to byte_code
           | {init_plt,       FileName :: string()}   %% If changed from default
           | {plts,           [FileName :: string()]} %% If changed from default
           | {include_dirs,   [DirName :: string()]}
           | {output_file,    FileName :: string()}
           | {output_plt,     FileName :: string()}
+          | {check_plt,      boolean()},
           | {analysis_type,  'succ_typings' |
                              'plt_add' |
                              'plt_build' |
@@ -313,7 +397,8 @@ WarnOpts :: no_return
           | race_conditions
           | overspecs
           | underspecs
-          | specdiffs</code>
+          | specdiffs
+          | unknown</code>
       </desc>
     </func>
     <func>
@@ -347,6 +432,7 @@ Tag :: 'warn_behaviour'
      | 'warn_return_only_exit'
      | 'warn_umatched_return'
      | 'warn_undefined_callbacks'
+     | 'warn_unknown'
 Id = {File :: string(), Line :: integer()}
 Msg = msg() -- Undefined</code>
       </desc>
diff --git a/lib/dialyzer/src/dialyzer.app.src b/lib/dialyzer/src/dialyzer.app.src
index 1756800c4f..b6b9173a84 100644
--- a/lib/dialyzer/src/dialyzer.app.src
+++ b/lib/dialyzer/src/dialyzer.app.src
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2006-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2006-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -45,6 +45,6 @@
   {registered, []},
   {applications, [compiler, gs, hipe, kernel, stdlib, wx]},
   {env, []},
-  {runtime_dependencies, ["wx-1.2","syntax_tools-1.6.14","stdlib-2.0",
-			  "kernel-3.0","hipe-3.10.3","erts-6.0",
+  {runtime_dependencies, ["wx-1.2","syntax_tools-1.6.14","stdlib-2.5",
+			  "kernel-3.0","hipe-3.10.3","erts-7.0",
 			  "compiler-5.0"]}]}.
diff --git a/lib/dialyzer/src/dialyzer.erl b/lib/dialyzer/src/dialyzer.erl
index cec94a49fd..c8537e3bd8 100644
--- a/lib/dialyzer/src/dialyzer.erl
+++ b/lib/dialyzer/src/dialyzer.erl
@@ -2,7 +2,7 @@
 %%-----------------------------------------------------------------------
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2006-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2006-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -162,14 +162,7 @@ run(Opts) ->
     {error, Msg} ->
       throw({dialyzer_error, Msg});
     OptsRecord ->
-      case OptsRecord#options.check_plt of
-        true ->
-          case cl_check_init(OptsRecord) of
-            {ok, ?RET_NOTHING_SUSPICIOUS} -> ok;
-            {error, ErrorMsg1} -> throw({dialyzer_error, ErrorMsg1})
-          end;
-        false -> ok
-      end,
+      ok = check_init(OptsRecord),
       case dialyzer_cl:start(OptsRecord) of
         {?RET_DISCREPANCIES, Warnings} -> Warnings;
         {?RET_NOTHING_SUSPICIOUS, _}  -> []
@@ -179,6 +172,16 @@ run(Opts) ->
       erlang:error({dialyzer_error, lists:flatten(ErrorMsg)})
   end.
 
+check_init(#options{analysis_type = plt_check}) ->
+    ok;
+check_init(#options{check_plt = true} = OptsRecord) ->
+    case cl_check_init(OptsRecord) of
+	{ok, _} -> ok;
+	{error, Msg} -> throw({dialyzer_error, Msg})
+    end;
+check_init(#options{check_plt = false}) ->
+    ok.
+
 internal_gui(OptsRecord) ->
   F = fun() ->
 	  dialyzer_gui_wx:start(OptsRecord),
@@ -199,17 +202,13 @@ gui(Opts) ->
       throw({dialyzer_error, Msg});
     OptsRecord ->
       ok = check_gui_options(OptsRecord),
-      case cl_check_init(OptsRecord) of
-	{ok, ?RET_NOTHING_SUSPICIOUS} ->
-	  F = fun() ->
-		  dialyzer_gui_wx:start(OptsRecord)
-	      end,
-	  case doit(F) of
-	    {ok, _} -> ok;
-	    {error, Msg} -> throw({dialyzer_error, Msg})
-	  end;
-	{error, ErrorMsg1} ->
-	  throw({dialyzer_error, ErrorMsg1})
+      ok = check_init(OptsRecord),
+      F = fun() ->
+          dialyzer_gui_wx:start(OptsRecord)
+      end,
+      case doit(F) of
+	  {ok, _} -> ok;
+	  {error, Msg} -> throw({dialyzer_error, Msg})
       end
   catch
     throw:{dialyzer_error, ErrorMsg} ->
@@ -282,15 +281,17 @@ cl_check_log(none) ->
 cl_check_log(Output) ->
   io:format("  Check output file `~s' for details\n", [Output]).
 
--spec format_warning(dial_warning()) -> string().
+-spec format_warning(raw_warning()) -> string().
 
 format_warning(W) ->
   format_warning(W, basename).
 
--spec format_warning(dial_warning(), fopt()) -> string().
+-spec format_warning(raw_warning() | dial_warning(), fopt()) -> string().
 
+format_warning({Tag, {File, Line, _MFA}, Msg}, FOpt) ->
+  format_warning({Tag, {File, Line}, Msg}, FOpt);
 format_warning({_Tag, {File, Line}, Msg}, FOpt) when is_list(File),
-						     is_integer(Line) ->
+                                                     is_integer(Line) ->
   F = case FOpt of
 	fullpath -> File;
 	basename -> filename:basename(File)
diff --git a/lib/dialyzer/src/dialyzer.hrl b/lib/dialyzer/src/dialyzer.hrl
index 9a25f86512..90addc35a8 100644
--- a/lib/dialyzer/src/dialyzer.hrl
+++ b/lib/dialyzer/src/dialyzer.hrl
@@ -84,6 +84,15 @@
 -type dial_warning() :: {dial_warn_tag(), file_line(), {atom(), [term()]}}.
 
 %%
+%% This is the representation of each warning before suppressions have
+%% been applied
+%%
+-type m_or_mfa()     :: module() % warnings not associated with any function
+                      | mfa().
+-type warning_info() :: {file:filename(), non_neg_integer(), m_or_mfa()}.
+-type raw_warning()  :: {dial_warn_tag(), warning_info(), {atom(), [term()]}}.
+
+%%
 %% This is the representation of dialyzer's internal errors
 %%
 -type dial_error()   :: any().    %% XXX: underspecified
@@ -103,6 +112,7 @@
 -type fopt()          :: 'basename' | 'fullpath'.
 -type format()        :: 'formatted' | 'raw'.
 -type label()	      :: non_neg_integer().
+-type dial_warn_tags():: ordsets:ordset(dial_warn_tag()).
 -type rep_mode()      :: 'quiet' | 'normal' | 'verbose'.
 -type start_from()    :: 'byte_code' | 'src_code'.
 -type mfa_or_funlbl() :: label() | mfa().
@@ -138,7 +148,7 @@
 		  init_plts       = []	           :: [file:filename()],
 		  include_dirs    = []		   :: [file:filename()],
 		  output_plt      = none           :: 'none' | file:filename(),
-		  legal_warnings  = ordsets:new()  :: ordsets:ordset(dial_warn_tag()),
+		  legal_warnings  = ordsets:new()  :: dial_warn_tags(),
 		  report_mode     = normal	   :: rep_mode(),
 		  erlang_mode     = false	   :: boolean(),
 		  use_contracts   = true           :: boolean(),
diff --git a/lib/dialyzer/src/dialyzer_analysis_callgraph.erl b/lib/dialyzer/src/dialyzer_analysis_callgraph.erl
index af1c2b7e3a..dbfe680345 100644
--- a/lib/dialyzer/src/dialyzer_analysis_callgraph.erl
+++ b/lib/dialyzer/src/dialyzer_analysis_callgraph.erl
@@ -2,7 +2,7 @@
 %%--------------------------------------------------------------------
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2006-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2006-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -39,8 +39,6 @@
 	      one_file_result/0,
 	      compile_result/0]).
 
--export_type([no_warn_unused/0]).
-
 -include("dialyzer.hrl").
 
 -record(analysis_state,
@@ -50,8 +48,9 @@
 	  defines        = []           :: [dial_define()],
 	  doc_plt                       :: dialyzer_plt:plt(),
 	  include_dirs   = []           :: [file:filename()],
-	  no_warn_unused                :: no_warn_unused(),
 	  parent                        :: pid(),
+          legal_warnings                :: % command line options
+                                           [dial_warn_tag()],
 	  plt                           :: dialyzer_plt:plt(),
 	  start_from     = byte_code    :: start_from(),
 	  use_contracts  = true         :: boolean(),
@@ -59,9 +58,10 @@
           solvers                       :: [solver()]
 	 }).
 
--record(server_state, {parent :: pid(), legal_warnings :: [dial_warn_tag()]}).
-
--type no_warn_unused()  :: sets:set(mfa()).
+-record(server_state,
+        {
+          parent :: pid()
+         }).
 
 %%--------------------------------------------------------------------
 %% Main
@@ -75,24 +75,24 @@ start(Parent, LegalWarnings, Analysis) ->
   Analysis0 =
     Analysis#analysis{race_detection = RacesOn, timing_server = TimingServer},
   Analysis1 = expand_files(Analysis0),
-  Analysis2 = run_analysis(Analysis1),
-  State = #server_state{parent = Parent, legal_warnings = LegalWarnings},
+  Analysis2 = run_analysis(Analysis1, LegalWarnings),
+  State = #server_state{parent = Parent},
   loop(State, Analysis2, none),
   dialyzer_timing:stop(TimingServer).
 
-run_analysis(Analysis) ->
+run_analysis(Analysis, LegalWarnings) ->
   Self = self(),
-  Fun = fun() -> analysis_start(Self, Analysis) end,
+  Fun = fun() -> analysis_start(Self, Analysis, LegalWarnings) end,
   Analysis#analysis{analysis_pid = spawn_link(Fun)}.
 
-loop(#server_state{parent = Parent, legal_warnings = LegalWarnings} = State,
+loop(#server_state{parent = Parent} = State,
      #analysis{analysis_pid = AnalPid} = Analysis, ExtCalls) ->
   receive
     {AnalPid, log, LogMsg} ->
       send_log(Parent, LogMsg),
       loop(State, Analysis, ExtCalls);
     {AnalPid, warnings, Warnings} ->
-      case filter_warnings(LegalWarnings, Warnings) of
+      case Warnings of
 	[] -> ok;
 	SendWarnings ->
 	  send_warnings(Parent, SendWarnings)
@@ -129,7 +129,7 @@ loop(#server_state{parent = Parent, legal_warnings = LegalWarnings} = State,
 %% The Analysis
 %%--------------------------------------------------------------------
 
-analysis_start(Parent, Analysis) ->
+analysis_start(Parent, Analysis, LegalWarnings) ->
   CServer = dialyzer_codeserver:new(),
   Plt = Analysis#analysis.plt,
   State = #analysis_state{codeserver = CServer,
@@ -139,13 +139,14 @@ analysis_start(Parent, Analysis) ->
 			  include_dirs = Analysis#analysis.include_dirs,
 			  plt = Plt,
 			  parent = Parent,
+                          legal_warnings = LegalWarnings,
 			  start_from = Analysis#analysis.start_from,
 			  use_contracts = Analysis#analysis.use_contracts,
 			  timing_server = Analysis#analysis.timing_server,
                           solvers = Analysis#analysis.solvers
 			 },
   Files = ordsets:from_list(Analysis#analysis.files),
-  {Callgraph, NoWarn, TmpCServer0} = compile_and_store(Files, State),
+  {Callgraph, TmpCServer0} = compile_and_store(Files, State),
   %% Remote type postprocessing
   NewCServer =
     try
@@ -177,7 +178,6 @@ analysis_start(Parent, Analysis) ->
   State0 = State#analysis_state{plt = NewPlt1},
   dump_callgraph(Callgraph, State0, Analysis),
   State1 = State0#analysis_state{codeserver = NewCServer},
-  State2 = State1#analysis_state{no_warn_unused = NoWarn},
   %% Remove all old versions of the files being analyzed
   AllNodes = dialyzer_callgraph:all_nodes(Callgraph),
   Plt1 = dialyzer_plt:delete_list(NewPlt1, AllNodes),
@@ -187,14 +187,14 @@ analysis_start(Parent, Analysis) ->
       true -> dialyzer_callgraph:put_race_detection(true, Callgraph);
       false -> Callgraph
     end,
-  State3 = analyze_callgraph(NewCallgraph, State2#analysis_state{plt = Plt1}),
+  State2 = analyze_callgraph(NewCallgraph, State1#analysis_state{plt = Plt1}),
   dialyzer_callgraph:dispose_race_server(NewCallgraph),
   rcv_and_send_ext_types(Parent),
   NonExports = sets:subtract(sets:from_list(AllNodes), Exports),
   NonExportsList = sets:to_list(NonExports),
-  Plt2 = dialyzer_plt:delete_list(State3#analysis_state.plt, NonExportsList),
-  send_codeserver_plt(Parent, CServer, State3#analysis_state.plt),
-  send_analysis_done(Parent, Plt2, State3#analysis_state.doc_plt).
+  Plt2 = dialyzer_plt:delete_list(State2#analysis_state.plt, NonExportsList),
+  send_codeserver_plt(Parent, CServer, State2#analysis_state.plt),
+  send_analysis_done(Parent, Plt2, State2#analysis_state.doc_plt).
 
 analyze_callgraph(Callgraph, #analysis_state{codeserver = Codeserver,
 					     doc_plt = DocPlt,
@@ -210,11 +210,11 @@ analyze_callgraph(Callgraph, #analysis_state{codeserver = Codeserver,
 						  TimingServer, Solvers, Parent),
 	{NewPlt0, DocPlt};
       succ_typings ->
-	NoWarn = State#analysis_state.no_warn_unused,
 	{Warnings, NewPlt0, NewDocPlt0} =
 	  dialyzer_succ_typings:get_warnings(Callgraph, Plt, DocPlt, Codeserver,
-					     NoWarn, TimingServer, Solvers, Parent),
-	send_warnings(State#analysis_state.parent, Warnings),
+					     TimingServer, Solvers, Parent),
+        Warnings1 = filter_warnings(Warnings, Codeserver),
+	send_warnings(State#analysis_state.parent, Warnings1),
 	{NewPlt0, NewDocPlt0}
     end,
   dialyzer_callgraph:delete(Callgraph),
@@ -230,19 +230,22 @@ analyze_callgraph(Callgraph, #analysis_state{codeserver = Codeserver,
 	  defines       = []        :: [dial_define()],
 	  include_dirs  = []        :: [file:filename()],
 	  start_from    = byte_code :: start_from(),
-	  use_contracts = true      :: boolean()
+	  use_contracts = true      :: boolean(),
+          legal_warnings            :: [dial_warn_tag()]
 	 }).
 
 make_compile_init(#analysis_state{codeserver = Codeserver,
 				  defines = Defs,
 				  include_dirs = Dirs,
 				  use_contracts = UseContracts,
+                                  legal_warnings = LegalWarnings,
 				  start_from = StartFrom}, Callgraph) ->
   #compile_init{callgraph = Callgraph,
 		codeserver = Codeserver,
 		defines = [{d, Macro, Val} || {Macro, Val} <- Defs],
 		include_dirs = [{i, D} || D <- Dirs],
 		use_contracts = UseContracts,
+                legal_warnings = LegalWarnings,
 		start_from = StartFrom}.
 
 compile_and_store(Files, #analysis_state{codeserver = CServer,
@@ -252,7 +255,7 @@ compile_and_store(Files, #analysis_state{codeserver = CServer,
   {T1, _} = statistics(wall_clock),
   Callgraph = dialyzer_callgraph:new(),
   CompileInit = make_compile_init(State, Callgraph),
-  {{Failed, NoWarn, Modules}, NextLabel} =
+  {{Failed, Modules}, NextLabel} =
     ?timing(Timing, "compile", _C1,
 	    dialyzer_coordinator:parallel_job(compile, Files,
 					      CompileInit, Timing)),
@@ -281,34 +284,34 @@ compile_and_store(Files, #analysis_state{codeserver = CServer,
   {T3, _} = statistics(wall_clock),
   Msg2 = io_lib:format("done in ~.2f secs\n", [(T3-T2)/1000]),
   send_log(Parent, Msg2),
-  {Callgraph, sets:from_list(NoWarn), CServer2}.
+  {Callgraph, CServer2}.
 
 -type compile_init_data() :: #compile_init{}.
 -type error_reason()      :: string().
--type compile_result()    :: {[{file:filename(), error_reason()}], [mfa()],
+-type compile_result()    :: {[{file:filename(), error_reason()}],
 			      [module()]}. %%opaque
 -type one_file_result()   :: {error, error_reason()} |
 			     {ok, [dialyzer_callgraph:callgraph_edge()],
-			      [mfa_or_funlbl()], [mfa()], module()}. %%opaque
--type compile_mid_data()  :: {module(), cerl:cerl(), [mfa()],
+			      [mfa_or_funlbl()], module()}. %%opaque
+-type compile_mid_data()  :: {module(), cerl:cerl(),
 			      dialyzer_callgraph:callgraph(),
 			      dialyzer_codeserver:codeserver()}.
 
 -spec compile_init_result() -> compile_result().
 
-compile_init_result() -> {[], [], []}.
+compile_init_result() -> {[], []}.
 
 -spec add_to_result(file:filename(), one_file_result(), compile_result(),
 		    compile_init_data()) -> compile_result().
 
-add_to_result(File, NewData, {Failed, NoWarn, Mods}, InitData) ->
+add_to_result(File, NewData, {Failed, Mods}, InitData) ->
   case NewData of
     {error, Reason} ->
-      {[{File, Reason}|Failed], NoWarn, Mods};
-    {ok, V, E, NewNoWarn, Mod} ->
+      {[{File, Reason}|Failed], Mods};
+    {ok, V, E, Mod} ->
       Callgraph = InitData#compile_init.callgraph,
       dialyzer_callgraph:add_edges(E, V, Callgraph),
-      {Failed, NewNoWarn ++ NoWarn, [Mod|Mods]}
+      {Failed, [Mod|Mods]}
   end.
 
 -spec start_compilation(file:filename(), compile_init_data()) ->
@@ -318,12 +321,14 @@ start_compilation(File,
 		  #compile_init{callgraph = Callgraph, codeserver = Codeserver,
 				defines = Defines, include_dirs = IncludeD,
 				use_contracts = UseContracts,
+                                legal_warnings = LegalWarnings,
 				start_from = StartFrom}) ->
   case StartFrom of
     src_code ->
-      compile_src(File, IncludeD, Defines, Callgraph, Codeserver, UseContracts);
+      compile_src(File, IncludeD, Defines, Callgraph, Codeserver,
+                  UseContracts, LegalWarnings);
     byte_code ->
-      compile_byte(File, Callgraph, Codeserver, UseContracts)
+      compile_byte(File, Callgraph, Codeserver, UseContracts, LegalWarnings)
   end.
 
 cleanup_callgraph(#analysis_state{plt = InitPlt, parent = Parent,
@@ -357,88 +362,86 @@ cleanup_callgraph(#analysis_state{plt = InitPlt, parent = Parent,
   end,
   Callgraph1.
 
-compile_src(File, Includes, Defines, Callgraph, CServer, UseContracts) ->
+compile_src(File, Includes, Defines, Callgraph, CServer, UseContracts,
+            LegalWarnings) ->
   DefaultIncludes = default_includes(filename:dirname(File)),
   SrcCompOpts = dialyzer_utils:src_compiler_opts(),
   CompOpts = SrcCompOpts ++ Includes ++ Defines ++ DefaultIncludes,
   case dialyzer_utils:get_abstract_code_from_src(File, CompOpts) of
     {error, _Msg} = Error -> Error;
     {ok, AbstrCode} ->
-      compile_common(File, AbstrCode, CompOpts, Callgraph, CServer, UseContracts)
+      compile_common(File, AbstrCode, CompOpts, Callgraph, CServer,
+                     UseContracts, LegalWarnings)
   end.
 
-compile_byte(File, Callgraph, CServer, UseContracts) ->
+compile_byte(File, Callgraph, CServer, UseContracts, LegalWarnings) ->
   case dialyzer_utils:get_abstract_code_from_beam(File) of
     error ->
       {error, "  Could not get abstract code for: " ++ File ++ "\n" ++
 	 "  Recompile with +debug_info or analyze starting from source code"};
     {ok, AbstrCode} ->
-      compile_byte(File, AbstrCode, Callgraph, CServer, UseContracts)
+      compile_byte(File, AbstrCode, Callgraph, CServer, UseContracts,
+                   LegalWarnings)
   end.
 
-compile_byte(File, AbstrCode, Callgraph, CServer, UseContracts) ->
+compile_byte(File, AbstrCode, Callgraph, CServer, UseContracts,
+             LegalWarnings) ->
   case dialyzer_utils:get_compile_options_from_beam(File) of
     error ->
       {error, "  Could not get compile options for: " ++ File ++ "\n" ++
 	 "  Recompile or analyze starting from source code"};
     {ok, CompOpts} ->
-      compile_common(File, AbstrCode, CompOpts, Callgraph, CServer, UseContracts)
+      compile_common(File, AbstrCode, CompOpts, Callgraph, CServer,
+                     UseContracts, LegalWarnings)
   end.
 
-compile_common(File, AbstrCode, CompOpts, Callgraph, CServer, UseContracts) ->
+compile_common(File, AbstrCode, CompOpts, Callgraph, CServer,
+               UseContracts, LegalWarnings) ->
   case dialyzer_utils:get_core_from_abstract_code(AbstrCode, CompOpts) of
     error -> {error, "  Could not get core Erlang code for: " ++ File};
     {ok, Core} ->
       Mod = cerl:concrete(cerl:module_name(Core)),
-      NoWarn = abs_get_nowarn(AbstrCode, Mod),
       case dialyzer_utils:get_record_and_type_info(AbstrCode) of
 	{error, _} = Error -> Error;
 	{ok, RecInfo} ->
 	  CServer1 =
 	    dialyzer_codeserver:store_temp_records(Mod, RecInfo, CServer),
+          MetaFunInfo =
+            dialyzer_utils:get_fun_meta_info(Mod, AbstrCode, LegalWarnings),
+          CServer2 =
+            dialyzer_codeserver:insert_fun_meta_info(MetaFunInfo, CServer1),
 	  case UseContracts of
 	    true ->
 	      case dialyzer_utils:get_spec_info(Mod, AbstrCode, RecInfo) of
 		{error, _} = Error -> Error;
 		{ok, SpecInfo, CallbackInfo} ->
-		  CServer2 =
+		  CServer3 =
 		    dialyzer_codeserver:store_temp_contracts(Mod, SpecInfo,
 							     CallbackInfo,
-							     CServer1),
-		  store_core(Mod, Core, NoWarn, Callgraph, CServer2)
+							     CServer2),
+		  store_core(Mod, Core, Callgraph, CServer3)
 	      end;
 	    false ->
-	      store_core(Mod, Core, NoWarn, Callgraph, CServer1)
+	      store_core(Mod, Core, Callgraph, CServer2)
 	  end
       end
   end.
 
-store_core(Mod, Core, NoWarn, Callgraph, CServer) ->
+store_core(Mod, Core, Callgraph, CServer) ->
   Exp = get_exports_from_core(Core),
   ExpTypes = get_exported_types_from_core(Core),
   CServer = dialyzer_codeserver:insert_exports(Exp, CServer),
   CServer = dialyzer_codeserver:insert_temp_exported_types(ExpTypes, CServer),
   CoreTree = cerl:from_records(Core),
-  {ok, cerl_trees:size(CoreTree), {Mod, CoreTree, NoWarn, Callgraph, CServer}}.
+  CoreSize = cerl_trees:size(CoreTree),
+  {ok, CoreSize, {Mod, CoreTree, Callgraph, CServer}}.
 
 -spec continue_compilation(integer(), compile_mid_data()) -> one_file_result().
 
-continue_compilation(NextLabel, {Mod, CoreTree, NoWarn, Callgraph, CServer}) ->
+continue_compilation(NextLabel, {Mod, CoreTree, Callgraph, CServer}) ->
   {LabeledTree, _NewNextLabel} = cerl_trees:label(CoreTree, NextLabel),
   LabeledCore = cerl:to_records(LabeledTree),
-  store_code_and_build_callgraph(Mod, LabeledCore, Callgraph, NoWarn, CServer).
-
-abs_get_nowarn(Abs, M) ->
-  Opts = lists:flatten([C || {attribute, _, compile, C} <- Abs]),
-  Warn = erl_lint:bool_option(warn_unused_function, nowarn_unused_function,
-                              true, Opts),
-  case Warn of
-    false ->
-      [{M, F, A} || {function, _, F, A, _} <- Abs]; % all functions
-    true ->
-      [{M, F, A} || {nowarn_unused_function, FAs} <- Opts,
-                    {F, A} <- lists:flatten([FAs])]
-  end.
+  store_code_and_build_callgraph(Mod, LabeledCore, Callgraph, CServer).
 
 get_exported_types_from_core(Core) ->
   Attrs = cerl:module_attrs(Core),
@@ -456,11 +459,11 @@ get_exports_from_core(Core) ->
   M = cerl:atom_val(cerl:module_name(Tree)),
   [{M, F, A} || {F, A} <- Exports2].
 
-store_code_and_build_callgraph(Mod, Core, Callgraph, NoWarn, CServer) ->
+store_code_and_build_callgraph(Mod, Core, Callgraph, CServer) ->
   CoreTree = cerl:from_records(Core),
   {Vertices, Edges} = dialyzer_callgraph:scan_core_tree(CoreTree, Callgraph),
   CServer = dialyzer_codeserver:insert(Mod, CoreTree, CServer),
-  {ok, Vertices, Edges, NoWarn, Mod}.
+  {ok, Vertices, Edges, Mod}.
 
 %%--------------------------------------------------------------------
 %% Utilities
@@ -548,10 +551,19 @@ send_warnings(Parent, Warnings) ->
   Parent ! {self(), warnings, Warnings},
   ok.
 
-filter_warnings(LegalWarnings, Warnings) ->
-  [TIW || {Tag, _Id, _Warning} = TIW <- Warnings,
-	  ordsets:is_element(Tag, LegalWarnings)].
+filter_warnings(Warnings, Codeserver) ->
+  [TWW || {Tag, WarningInfo, _Warning} = TWW <- Warnings,
+          is_ok_fun(WarningInfo, Codeserver),
+          is_ok_tag(Tag, WarningInfo, Codeserver)].
+
+is_ok_fun({_F, _L, Module}, _Codeserver) when is_atom(Module) ->
+  true;
+is_ok_fun({_Filename, _Line, {_M, _F, _A} = MFA}, Codeserver) ->
+  not dialyzer_utils:is_suppressed_fun(MFA, Codeserver).
 
+is_ok_tag(Tag, {_F, _L, MorMFA}, Codeserver) ->
+  not dialyzer_utils:is_suppressed_tag(MorMFA, Tag, Codeserver).
+  
 send_analysis_done(Parent, Plt, DocPlt) ->
   Parent ! {self(), done, Plt, DocPlt},
   ok.
@@ -573,7 +585,9 @@ send_codeserver_plt(Parent, CServer, Plt ) ->
   ok.
 
 send_bad_calls(Parent, BadCalls, CodeServer) ->
-  send_warnings(Parent, format_bad_calls(BadCalls, CodeServer, [])).
+  FormatedBadCalls = format_bad_calls(BadCalls, CodeServer, []),
+  Warnings = filter_warnings(FormatedBadCalls, CodeServer),
+  send_warnings(Parent, Warnings).
 
 send_mod_deps(Parent, ModuleDeps) ->
   Parent ! {self(), mod_deps, ModuleDeps},
@@ -585,8 +599,9 @@ format_bad_calls([{{_, _, _}, {_, module_info, A}}|Left], CodeServer, Acc)
 format_bad_calls([{FromMFA, {M, F, A} = To}|Left], CodeServer, Acc) ->
   {_Var, FunCode} = dialyzer_codeserver:lookup_mfa_code(FromMFA, CodeServer),
   Msg = {call_to_missing, [M, F, A]},
-  FileLine = find_call_file_and_line(FunCode, To),
-  NewAcc = [{?WARN_CALLGRAPH, FileLine, Msg}|Acc],
+  {File, Line} = find_call_file_and_line(FunCode, To),
+  WarningInfo = {File, Line, FromMFA},
+  NewAcc = [{?WARN_CALLGRAPH, WarningInfo, Msg}|Acc],
   format_bad_calls(Left, CodeServer, NewAcc);
 format_bad_calls([], _CodeServer, Acc) ->
   Acc.
diff --git a/lib/dialyzer/src/dialyzer_behaviours.erl b/lib/dialyzer/src/dialyzer_behaviours.erl
index 1d458b49fc..19b63bd2c8 100644
--- a/lib/dialyzer/src/dialyzer_behaviours.erl
+++ b/lib/dialyzer/src/dialyzer_behaviours.erl
@@ -52,7 +52,7 @@
 
 -spec check_callbacks(module(), [{cerl:cerl(), cerl:cerl()}], rectab(),
 		      dialyzer_plt:plt(),
-		      dialyzer_codeserver:codeserver()) -> [dial_warning()].
+		      dialyzer_codeserver:codeserver()) -> [raw_warning()].
 
 check_callbacks(Module, Attrs, Records, Plt, Codeserver) ->
   {Behaviours, BehLines} = get_behaviours(Attrs),
@@ -65,7 +65,7 @@ check_callbacks(Module, Attrs, Records, Plt, Codeserver) ->
       State = #state{plt = Plt, filename = File, behlines = BehLines,
 		     codeserver = Codeserver, records = Records},
       Warnings = get_warnings(Module, Behaviours, State),
-      [add_tag_file_line(Module, W, State) || W <- Warnings]
+      [add_tag_warning_info(Module, W, State) || W <- Warnings]
   end.
 
 %%--------------------------------------------------------------------
@@ -102,14 +102,18 @@ check_all_callbacks(Module, Behaviour, [Cb|Rest],
 		    #state{plt = Plt, codeserver = Codeserver,
 			   records = Records} = State, Acc) ->
   {{Behaviour, Function, Arity},
-   {{_BehFile, _BehLine}, Callback}} = Cb,
+   {{_BehFile, _BehLine}, Callback, Xtra}} = Cb,
   CbMFA = {Module, Function, Arity},
   CbReturnType = dialyzer_contracts:get_contract_return(Callback),
   CbArgTypes = dialyzer_contracts:get_contract_args(Callback),
   Acc0 = Acc,
   Acc1 = 
     case dialyzer_plt:lookup(Plt, CbMFA) of
-      'none' -> [{callback_missing, [Behaviour, Function, Arity]}|Acc0];
+      'none' ->
+        case lists:member(optional_callback, Xtra) of
+          true -> Acc0;
+          false -> [{callback_missing, [Behaviour, Function, Arity]}|Acc0]
+        end;
       {'value', RetArgTypes} ->
 	Acc00 = Acc0,
 	{ReturnType, ArgTypes} = RetArgTypes,
@@ -137,7 +141,7 @@ check_all_callbacks(Module, Behaviour, [Cb|Rest],
   Acc2 =
     case dialyzer_codeserver:lookup_mfa_contract(CbMFA, Codeserver) of
       'error' -> Acc1;
-      {ok, {{File, Line}, Contract}} ->
+      {ok, {{File, Line}, Contract, _Xtra}} ->
 	Acc10 = Acc1,
 	SpecReturnType0 = dialyzer_contracts:get_contract_return(Contract),
 	SpecArgTypes0 = dialyzer_contracts:get_contract_args(Contract),
@@ -189,7 +193,7 @@ find_mismatching_args(Kind, [Type|Rest], [CbType|CbRest], Behaviour,
 			    Arity, Records, N+1, NewAcc)
   end.
 
-add_tag_file_line(_Module, {Tag, [B|_R]} = Warn, State)
+add_tag_warning_info(Module, {Tag, [B|_R]} = Warn, State)
   when Tag =:= callback_missing;
        Tag =:= callback_info_missing ->
   {B, Line} = lists:keyfind(B, 1, State#state.behlines),
@@ -198,18 +202,18 @@ add_tag_file_line(_Module, {Tag, [B|_R]} = Warn, State)
       callback_missing -> ?WARN_BEHAVIOUR;
       callback_info_missing -> ?WARN_UNDEFINED_CALLBACK
     end,
-  {Category, {State#state.filename, Line}, Warn};
-add_tag_file_line(_Module, {Tag, [File, Line|R]}, _State)
+  {Category, {State#state.filename, Line, Module}, Warn};
+add_tag_warning_info(Module, {Tag, [File, Line|R]}, _State)
   when Tag =:= callback_spec_type_mismatch;
        Tag =:= callback_spec_arg_type_mismatch ->
-  {?WARN_BEHAVIOUR, {File, Line}, {Tag, R}};
-add_tag_file_line(Module, {_Tag, [_B, Fun, Arity|_R]} = Warn, State) ->
+  {?WARN_BEHAVIOUR, {File, Line, Module}, {Tag, R}};
+add_tag_warning_info(Module, {_Tag, [_B, Fun, Arity|_R]} = Warn, State) ->
   {_A, FunCode} =
     dialyzer_codeserver:lookup_mfa_code({Module, Fun, Arity},
 					State#state.codeserver),
   Anns = cerl:get_ann(FunCode),
-  FileLine = {get_file(Anns), get_line(Anns)},
-  {?WARN_BEHAVIOUR, FileLine, Warn}.
+  WarningInfo = {get_file(Anns), get_line(Anns), {Module, Fun, Arity}},
+  {?WARN_BEHAVIOUR, WarningInfo, Warn}.
 
 get_line([Line|_]) when is_integer(Line) -> Line;
 get_line([_|Tail]) -> get_line(Tail);
diff --git a/lib/dialyzer/src/dialyzer_cl.erl b/lib/dialyzer/src/dialyzer_cl.erl
index 3e7d9dfa99..55fcd15641 100644
--- a/lib/dialyzer/src/dialyzer_cl.erl
+++ b/lib/dialyzer/src/dialyzer_cl.erl
@@ -2,7 +2,7 @@
 %%-------------------------------------------------------------------
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2006-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2006-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -48,7 +48,7 @@
 	 plt_info        = none           :: 'none' | dialyzer_plt:plt_info(),
 	 report_mode     = normal         :: rep_mode(),
 	 return_status= ?RET_NOTHING_SUSPICIOUS	:: dial_ret(),
-	 stored_warnings = []             :: [dial_warning()],
+	 stored_warnings = []             :: [raw_warning()],
 	 unknown_behaviours = []          :: [dialyzer_behaviours:behaviour()]
 	}).
 
@@ -469,7 +469,7 @@ expand_dependent_modules(Md5, DiffMd5, ModDeps) ->
 		  Mod = list_to_atom(filename:basename(File, ".beam")),
 		  sets:is_element(Mod, AnalyzeMods)
 	      end,
-  {[F || {F, _} <- Md5, FilterFun(F)], RemovedMods, NewModDeps}.
+  {[F || {F, _} <- Md5, FilterFun(F)], BigSet, NewModDeps}.
 
 expand_dependent_modules_1([Mod|Mods], Included, ModDeps) ->
   case dict:find(Mod, ModDeps) of
@@ -512,32 +512,82 @@ hipe_compile(Files, #options{erlang_mode = ErlangMode} = Options) ->
 		  dialyzer_worker],
 	  report_native_comp(Options),
 	  {T1, _} = statistics(wall_clock),
-	  native_compile(Mods),
+	  Cache = (get(dialyzer_options_native_cache) =/= false),
+	  native_compile(Mods, Cache),
 	  {T2, _} = statistics(wall_clock),
 	  report_elapsed_time(T1, T2, Options)
       end
   end.
 
-native_compile(Mods) ->
+native_compile(Mods, Cache) ->
   case dialyzer_utils:parallelism() > ?MIN_PARALLELISM of
     true ->
       Parent = self(),
-      Pids = [spawn(fun () -> Parent ! {self(), hc(M)} end) || M <- Mods],
+      Pids = [spawn(fun () -> Parent ! {self(), hc(M, Cache)} end) || M <- Mods],
       lists:foreach(fun (Pid) -> receive {Pid, Res} -> Res end end, Pids);
     false ->
-      lists:foreach(fun (Mod) -> hc(Mod) end, Mods)
+      lists:foreach(fun (Mod) -> hc(Mod, Cache) end, Mods)
   end.
 
-hc(Mod) ->
+hc(Mod, Cache) ->
   {module, Mod} = code:ensure_loaded(Mod),
   case code:is_module_native(Mod) of
     true -> ok;
     false ->
       %% io:format(" ~w", [Mod]),
-      {ok, Mod} = hipe:c(Mod),
-      ok
+      case Cache of
+	false ->
+	  {ok, Mod} = hipe:c(Mod),
+	  ok;
+	true ->
+	  hc_cache(Mod)
+      end
   end.
 
+hc_cache(Mod) ->
+  CacheBase = cache_base_dir(),
+  %% Use HiPE architecture and version in directory name, to avoid
+  %% clashes between incompatible binaries.
+  HipeArchVersion =
+    lists:concat(
+      [erlang:system_info(hipe_architecture), "-",
+       hipe:version(), "-",
+       hipe_bifs:system_crc()]),
+  CacheDir = filename:join(CacheBase, HipeArchVersion),
+  OrigBeamFile = code:which(Mod),
+  {ok, {Mod, <<Checksum:128>>}} = beam_lib:md5(OrigBeamFile),
+  CachedBeamFile = filename:join(CacheDir, lists:concat([Mod, "-", Checksum, ".beam"])),
+  ok = filelib:ensure_dir(CachedBeamFile),
+  ModBin =
+    case filelib:is_file(CachedBeamFile) of
+      true ->
+	{ok, BinFromFile} = file:read_file(CachedBeamFile),
+	BinFromFile;
+      false ->
+	{ok, Mod, CompiledBin} = compile:file(OrigBeamFile, [from_beam, native, binary]),
+	ok = file:write_file(CachedBeamFile, CompiledBin),
+	CompiledBin
+    end,
+  code:unstick_dir(filename:dirname(OrigBeamFile)),
+  {module, Mod} = code:load_binary(Mod, CachedBeamFile, ModBin),
+  true = code:is_module_native(Mod),
+  ok.
+
+cache_base_dir() ->
+  %% http://standards.freedesktop.org/basedir-spec/basedir-spec-0.7.html
+  %% If XDG_CACHE_HOME is set to an absolute path, use it as base.
+  XdgCacheHome = os:getenv("XDG_CACHE_HOME"),
+  CacheHome =
+    case is_list(XdgCacheHome) andalso filename:pathtype(XdgCacheHome) =:= absolute of
+      true ->
+	XdgCacheHome;
+      false ->
+	%% Otherwise, the default is $HOME/.cache.
+	{ok, [[Home]]} = init:get_argument(home),
+	filename:join(Home, ".cache")
+    end,
+  filename:join([CacheHome, "dialyzer_hipe_cache"]).
+
 new_state() ->
   #cl_state{}.
 
@@ -627,7 +677,7 @@ format_log_cache(LogCache) ->
   Str = lists:append(lists:reverse(LogCache)),
   string:join(string:tokens(Str, "\n"), "\n  ").
 
--spec store_warnings(#cl_state{}, [dial_warning()]) -> #cl_state{}.
+-spec store_warnings(#cl_state{}, [raw_warning()]) -> #cl_state{}.
 
 store_warnings(#cl_state{stored_warnings = StoredWarnings} = St, Warnings) ->
   St#cl_state{stored_warnings = StoredWarnings ++ Warnings}.
@@ -656,15 +706,15 @@ return_value(State = #cl_state{erlang_mode = ErlangMode,
 			       mod_deps = ModDeps,
 			       output_plt = OutputPlt,
 			       plt_info = PltInfo,
-			       stored_warnings = StoredWarnings,
-                               legal_warnings = LegalWarnings},
+			       stored_warnings = StoredWarnings},
 	     Plt) ->
   case OutputPlt =:= none of
     true -> ok;
     false -> dialyzer_plt:to_file(OutputPlt, Plt, ModDeps, PltInfo)
   end,
+  UnknownWarnings = unknown_warnings(State),
   RetValue =
-    case StoredWarnings =:= [] of
+    case StoredWarnings =:= [] andalso UnknownWarnings =:= [] of
       true -> ?RET_NOTHING_SUSPICIOUS;
       false -> ?RET_DISCREPANCIES
     end,
@@ -677,33 +727,37 @@ return_value(State = #cl_state{erlang_mode = ErlangMode,
       maybe_close_output_file(State),
       {RetValue, []};
     true -> 
-      Unknown =
-        case ordsets:is_element(?WARN_UNKNOWN, LegalWarnings) of
-          true ->
-            unknown_functions(State) ++
-              unknown_types(State) ++
-              unknown_behaviours(State);
-          false -> []
-        end,
-      UnknownWarnings =
-        [{?WARN_UNKNOWN, {_Filename = "", _Line = 0}, W} || W <- Unknown],
       AllWarnings =
         UnknownWarnings ++ process_warnings(StoredWarnings),
-      {RetValue, AllWarnings}
+      {RetValue, set_warning_id(AllWarnings)}
   end.
 
+unknown_warnings(State = #cl_state{legal_warnings = LegalWarnings}) ->
+  Unknown = case ordsets:is_element(?WARN_UNKNOWN, LegalWarnings) of
+              true ->
+                unknown_functions(State) ++
+                  unknown_types(State) ++
+                  unknown_behaviours(State);
+              false -> []
+            end,
+  WarningInfo = {_Filename = "", _Line = 0, _MorMFA = ''},
+  [{?WARN_UNKNOWN, WarningInfo, W} || W <- Unknown].
+
 unknown_functions(#cl_state{external_calls = Calls}) ->
   [{unknown_function, MFA} || MFA <- Calls].
 
+set_warning_id(Warnings) ->
+  lists:map(fun({Tag, {File, Line, _MorMFA}, Msg}) ->
+                {Tag, {File, Line}, Msg}
+            end, Warnings).
+
 print_ext_calls(#cl_state{report_mode = quiet}) ->
   ok;
 print_ext_calls(#cl_state{output = Output,
 			  external_calls = Calls,
 			  stored_warnings = Warnings,
-			  output_format = Format,
-                          legal_warnings = LegalWarnings}) ->
-  case not ordsets:is_element(?WARN_UNKNOWN, LegalWarnings)
-    orelse Calls =:= [] of
+			  output_format = Format}) ->
+  case Calls =:= [] of
     true -> ok;
     false ->
       case Warnings =:= [] of
@@ -735,10 +789,8 @@ print_ext_types(#cl_state{output = Output,
                           external_calls = Calls,
                           external_types = Types,
                           stored_warnings = Warnings,
-                          output_format = Format,
-                          legal_warnings = LegalWarnings}) ->
-  case not ordsets:is_element(?WARN_UNKNOWN, LegalWarnings)
-    orelse Types =:= [] of
+                          output_format = Format}) ->
+  case Types =:= [] of
     true -> ok;
     false ->
       case Warnings =:= [] andalso Calls =:= [] of
@@ -817,15 +869,16 @@ print_warnings(#cl_state{output = Output,
 	    formatted ->
 	      [dialyzer:format_warning(W, FOpt) || W <- PrWarnings];
 	    raw ->
-	      [io_lib:format("~p. \n", [W]) || W <- PrWarnings]
+	      [io_lib:format("~p. \n",
+                             [W]) || W <- set_warning_id(PrWarnings)]
 	  end,
       io:format(Output, "\n~s", [S])
   end.
 
--spec process_warnings([dial_warning()]) -> [dial_warning()].
+-spec process_warnings([raw_warning()]) -> [raw_warning()].
   
 process_warnings(Warnings) ->
-  Warnings1 = lists:keysort(2, Warnings), %% Sort on file/line
+  Warnings1 = lists:keysort(2, Warnings), %% Sort on file/line (and m/mfa..)
   remove_duplicate_warnings(Warnings1, []).
 
 remove_duplicate_warnings([Duplicate, Duplicate|Left], Acc) ->
diff --git a/lib/dialyzer/src/dialyzer_cl_parse.erl b/lib/dialyzer/src/dialyzer_cl_parse.erl
index 04ce0e8bc3..fae88ed6e8 100644
--- a/lib/dialyzer/src/dialyzer_cl_parse.erl
+++ b/lib/dialyzer/src/dialyzer_cl_parse.erl
@@ -2,7 +2,7 @@
 %%-----------------------------------------------------------------------
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2006-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2006-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -75,6 +75,9 @@ cl(["-nn"|T]) ->
 cl(["--no_native"|T]) ->
   put(dialyzer_options_native, false),
   cl(T);
+cl(["--no_native_cache"|T]) ->
+  put(dialyzer_options_native_cache, false),
+  cl(T);
 cl(["--plt_info"|T]) ->
   put(dialyzer_options_analysis_type, plt_info),
   cl(T);
@@ -363,7 +366,7 @@ help_message() ->
 		[--build_plt] [--add_to_plt] [--remove_from_plt]
 		[--check_plt] [--no_check_plt] [--plt_info] [--get_warnings]
                 [--dump_callgraph file] [--no_native] [--fullpath]
-                [--statistics]
+                [--statistics] [--no_native_cache]
 Options:
   files_or_dirs (for backwards compatibility also as: -c files_or_dirs)
       Use Dialyzer from the command line to detect defects in the
@@ -468,6 +471,11 @@ Options:
       Bypass the native code compilation of some key files that Dialyzer
       heuristically performs when dialyzing many files; this avoids the
       compilation time but it may result in (much) longer analysis time.
+  --no_native_cache
+      By default, Dialyzer caches the results of native compilation in the
+      $XDG_CACHE_HOME/erlang/dialyzer_hipe_cache directory.
+      XDG_CACHE_HOME defaults to $HOME/.cache.  Use this option to disable
+      caching.
   --fullpath
       Display the full path names of files for which warnings are emitted.
   --gui
@@ -509,6 +517,8 @@ warning_options_msg() ->
   -Wno_behaviours
      Suppress warnings about behaviour callbacks which drift from the published
      recommended interfaces.
+  -Wno_missing_calls
+     Suppress warnings about calls to missing functions.
   -Wno_undefined_callbacks
      Suppress warnings about behaviours that have no -callback attributes for
      their callbacks.
@@ -522,6 +532,13 @@ warning_options_msg() ->
   -Wunderspecs ***
      Warn about underspecified functions
      (those whose -spec is strictly more allowing than the success typing).
+  -Wunknown ***
+     Let warnings about unknown functions and types affect the
+     exit status of the command line version. The default is to ignore
+     warnings about unknown functions and types when setting the exit
+     status. When using the Dialyzer from Erlang, warnings about unknown
+     functions and types are returned; the default is not to return
+     such warnings.
 
 The following options are also available but their use is not recommended:
 (they are mostly for Dialyzer developers and internal debugging)
diff --git a/lib/dialyzer/src/dialyzer_codeserver.erl b/lib/dialyzer/src/dialyzer_codeserver.erl
index aab3d6add6..e0add00061 100644
--- a/lib/dialyzer/src/dialyzer_codeserver.erl
+++ b/lib/dialyzer/src/dialyzer_codeserver.erl
@@ -43,19 +43,21 @@
 	 insert/3,
 	 insert_exports/2,
          insert_temp_exported_types/2,
+         insert_fun_meta_info/2,
 	 is_exported/2,
 	 lookup_mod_code/2,
 	 lookup_mfa_code/2,
 	 lookup_mod_records/2,
 	 lookup_mod_contracts/2,
 	 lookup_mfa_contract/2,
+         lookup_meta_info/2,
 	 new/0,
 	 set_next_core_label/2,
 	 set_temp_records/2,
 	 store_temp_records/3,
 	 store_temp_contracts/4]).
 
--export_type([codeserver/0]).
+-export_type([codeserver/0, fun_meta_info/0]).
 
 -include("dialyzer.hrl").
 
@@ -70,12 +72,19 @@
 -type contracts()     :: dict:dict(mfa(),dialyzer_contracts:file_contract()).
 -type mod_contracts() :: dict:dict(module(), contracts()).
 
+%% A property-list of data compiled from -compile and -dialyzer attributes.
+-type meta_info()     :: [{{'nowarn_function' | dial_warn_tag()},
+                           'mod' | 'func'}].
+-type fun_meta_info() :: [{mfa(), meta_info()}
+                          | {module(), [dial_warn_tag()]}].
+
 -record(codeserver, {next_core_label = 0 :: label(),
 		     code		 :: dict_ets(),
                      exported_types      :: set_ets(), % set(mfa())
 		     records             :: dict_ets(),
 		     contracts           :: dict_ets(),
 		     callbacks           :: dict_ets(),
+                     fun_meta_info       :: dict_ets(), % {mfa(), meta_info()}
 		     exports             :: 'clean' | set_ets(), % set(mfa())
                      temp_exported_types :: 'clean' | set_ets(), % set(mfa())
 		     temp_records        :: 'clean' | dict_ets(),
@@ -129,14 +138,17 @@ new() ->
   CodeOptions = [compressed, public, {read_concurrency, true}],
   Code = ets:new(dialyzer_codeserver_code, CodeOptions),
   TempOptions = [public, {write_concurrency, true}],
-  [Exports, TempExportedTypes, TempRecords, TempContracts, TempCallbacks] =
+  [Exports, FunMetaInfo, TempExportedTypes, TempRecords, TempContracts,
+   TempCallbacks] =
     [ets:new(Name, TempOptions) ||
       Name <-
-	[dialyzer_codeserver_exports, dialyzer_codeserver_temp_exported_types,
+	[dialyzer_codeserver_exports, dialyzer_codeserver_fun_meta_info,
+         dialyzer_codeserver_temp_exported_types,
 	 dialyzer_codeserver_temp_records, dialyzer_codeserver_temp_contracts,
 	 dialyzer_codeserver_temp_callbacks]],
   #codeserver{code                = Code,
 	      exports             = Exports,
+              fun_meta_info       = FunMetaInfo,
 	      temp_exported_types = TempExportedTypes,
 	      temp_records        = TempRecords,
 	      temp_contracts      = TempContracts,
@@ -184,6 +196,12 @@ insert_exports(List, #codeserver{exports = Exports} = CS) ->
   true = ets_set_insert_list(List, Exports),
   CS.
 
+-spec insert_fun_meta_info(fun_meta_info(), codeserver()) -> codeserver().
+
+insert_fun_meta_info(List, #codeserver{fun_meta_info = FunMetaInfo} = CS) ->
+  true = ets:insert(FunMetaInfo, List),
+  CS.
+
 -spec is_exported(mfa(), codeserver()) -> boolean().
 
 is_exported(MFA, #codeserver{exports = Exports}) ->
@@ -278,10 +296,10 @@ lookup_mod_contracts(Mod, #codeserver{contracts = ContDict})
   case ets_dict_find(Mod, ContDict) of
     error -> dict:new();
     {ok, Keys} ->
-      dict:from_list([get_contract_pair(Key, ContDict)|| Key <- Keys])
+      dict:from_list([get_file_contract(Key, ContDict)|| Key <- Keys])
   end.
 
-get_contract_pair(Key, ContDict) ->
+get_file_contract(Key, ContDict) ->
   {Key, ets:lookup_element(ContDict, Key, 2)}.
 
 -spec lookup_mfa_contract(mfa(), codeserver()) ->
@@ -290,6 +308,14 @@ get_contract_pair(Key, ContDict) ->
 lookup_mfa_contract(MFA, #codeserver{contracts = ContDict}) ->
   ets_dict_find(MFA, ContDict).
 
+-spec lookup_meta_info(module() | mfa(), codeserver()) -> meta_info().
+
+lookup_meta_info(MorMFA, #codeserver{fun_meta_info = FunMetaInfo}) ->
+  case ets_dict_find(MorMFA, FunMetaInfo) of
+    error -> [];
+    {ok, PropList} -> PropList
+  end.
+
 -spec get_contracts(codeserver()) -> mod_contracts().
 
 get_contracts(#codeserver{contracts = ContDict}) ->
diff --git a/lib/dialyzer/src/dialyzer_contracts.erl b/lib/dialyzer/src/dialyzer_contracts.erl
index f27fc1a842..4a1ba9c539 100644
--- a/lib/dialyzer/src/dialyzer_contracts.erl
+++ b/lib/dialyzer/src/dialyzer_contracts.erl
@@ -2,7 +2,7 @@
 %%-----------------------------------------------------------------------
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2007-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2007-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -43,7 +43,7 @@
 %% Types used in other parts of the system below
 %%-----------------------------------------------------------------------
 
--type file_contract() :: {file_line(), #contract{}}.
+-type file_contract() :: {file_line(), #contract{}, Extra :: [_]}.
 
 -type plt_contracts() :: [{mfa(), #contract{}}]. % actually, an orddict()
 
@@ -146,10 +146,10 @@ process_contract_remote_types(CodeServer) ->
   ExpTypes = dialyzer_codeserver:get_exported_types(CodeServer),
   RecordDict = dialyzer_codeserver:get_records(CodeServer),
   ContractFun =
-    fun({_M, _F, _A}, {File, #tmp_contract{contract_funs = CFuns, forms = Forms}}) ->
+    fun({_M, _F, _A}, {File, #tmp_contract{contract_funs = CFuns, forms = Forms}, Xtra}) ->
 	NewCs = [CFun(ExpTypes, RecordDict) || CFun <- CFuns],
 	Args = general_domain(NewCs),
-	{File, #contract{contracts = NewCs, args = Args, forms = Forms}}
+	{File, #contract{contracts = NewCs, args = Args, forms = Forms}, Xtra}
     end,
   ModuleFun =
     fun(_ModuleName, ContractDict) ->
@@ -175,7 +175,7 @@ check_contracts(Contracts, Callgraph, FunTypes, FindOpaques) ->
 	case dialyzer_callgraph:lookup_name(Label, Callgraph) of
 	  {ok, {M,F,A} = MFA} ->
 	    case orddict:find(MFA, Contracts) of
-	      {ok, {_FileLine, Contract}} ->
+	      {ok, {_FileLine, Contract, _Xtra}} ->
                 Opaques = FindOpaques(M),
 		case check_contract(Contract, Type, Opaques) of
 		  ok ->
@@ -351,7 +351,7 @@ solve_constraints(Contract, Call, Constraints) ->
 
 %% Checks the contracts for functions that are not implemented
 -spec contracts_without_fun(contracts(), [_], dialyzer_callgraph:callgraph()) ->
-        [dial_warning()].
+        [raw_warning()].
 
 contracts_without_fun(Contracts, AllFuns0, Callgraph) ->
   AllFuns1 = [{dialyzer_callgraph:lookup_name(Label, Callgraph), Arity}
@@ -362,8 +362,9 @@ contracts_without_fun(Contracts, AllFuns0, Callgraph) ->
   [warn_spec_missing_fun(MFA, Contracts) || MFA <- ErrorContractMFAs].
 
 warn_spec_missing_fun({M, F, A} = MFA, Contracts) ->
-  {FileLine, _Contract} = dict:fetch(MFA, Contracts),
-  {?WARN_CONTRACT_SYNTAX, FileLine, {spec_missing_fun, [M, F, A]}}.
+  {{File, Line}, _Contract, _Xtra} = dict:fetch(MFA, Contracts),
+  WarningInfo = {File, Line, MFA},
+  {?WARN_CONTRACT_SYNTAX, WarningInfo, {spec_missing_fun, [M, F, A]}}.
 
 %% This treats the "when" constraints. It will be extended, we hope.
 insert_constraints([{subtype, Type1, Type2}|Left], Dict) ->
@@ -386,26 +387,29 @@ insert_constraints([], Dict) -> Dict.
 
 -type types() :: erl_types:type_table().
 
--spec store_tmp_contract(mfa(), file_line(), [_], contracts(), types()) ->
+-type spec_data() :: {TypeSpec :: [_], Xtra:: [_]}.
+
+-spec store_tmp_contract(mfa(), file_line(), spec_data(), contracts(), types()) ->
         contracts().
 
-store_tmp_contract(MFA, FileLine, TypeSpec, SpecDict, RecordsDict) ->
+store_tmp_contract(MFA, FileLine, {TypeSpec, Xtra}, SpecDict, RecordsDict) ->
   %% io:format("contract from form: ~p\n", [TypeSpec]),
-  TmpContract = contract_from_form(TypeSpec, RecordsDict, FileLine),
+  {Module, _, _} = MFA,
+  TmpContract = contract_from_form(TypeSpec, Module, RecordsDict, FileLine),
   %% io:format("contract: ~p\n", [TmpContract]),
-  dict:store(MFA, {FileLine, TmpContract}, SpecDict).
+  dict:store(MFA, {FileLine, TmpContract, Xtra}, SpecDict).
 
-contract_from_form(Forms, RecDict, FileLine) ->
-  {CFuns, Forms1} = contract_from_form(Forms, RecDict, FileLine, [], []),
+contract_from_form(Forms, Module, RecDict, FileLine) ->
+  {CFuns, Forms1} = contract_from_form(Forms, Module, RecDict, FileLine, [], []),
   #tmp_contract{contract_funs = CFuns, forms = Forms1}.
 
-contract_from_form([{type, _, 'fun', [_, _]} = Form | Left], RecDict,
+contract_from_form([{type, _, 'fun', [_, _]} = Form | Left], Module, RecDict,
 		   FileLine, TypeAcc, FormAcc) ->
   TypeFun =
     fun(ExpTypes, AllRecords) ->
-	Type =
+	NewType =
 	  try
-	    erl_types:t_from_form(Form, RecDict)
+            erl_types:t_from_form(Form, ExpTypes, Module, AllRecords)
 	  catch
 	    throw:{error, Msg} ->
 	      {File, Line} = FileLine,
@@ -413,61 +417,60 @@ contract_from_form([{type, _, 'fun', [_, _]} = Form | Left], RecDict,
 						     Line, Msg]),
 	      throw({error, NewMsg})
 	  end,
-	NewType = erl_types:t_solve_remote(Type, ExpTypes, AllRecords),
         NewTypeNoVars = erl_types:subst_all_vars_to_any(NewType),
 	{NewTypeNoVars, []}
     end,
   NewTypeAcc = [TypeFun | TypeAcc],
   NewFormAcc = [{Form, []} | FormAcc],
-  contract_from_form(Left, RecDict, FileLine, NewTypeAcc, NewFormAcc);
+  contract_from_form(Left, Module, RecDict, FileLine, NewTypeAcc, NewFormAcc);
 contract_from_form([{type, _L1, bounded_fun,
 		     [{type, _L2, 'fun', [_, _]} = Form, Constr]}| Left],
-		   RecDict, FileLine, TypeAcc, FormAcc) ->
+		   Module, RecDict, FileLine, TypeAcc, FormAcc) ->
   TypeFun =
     fun(ExpTypes, AllRecords) ->
 	{Constr1, VarDict} =
-	  process_constraints(Constr, RecDict, ExpTypes, AllRecords),
-	Type = erl_types:t_from_form(Form, RecDict, VarDict),
-	NewType = erl_types:t_solve_remote(Type, ExpTypes, AllRecords),
+	  process_constraints(Constr, Module, RecDict, ExpTypes, AllRecords),
+        NewType = erl_types:t_from_form(Form, ExpTypes, Module, AllRecords,
+                                        VarDict),
         NewTypeNoVars = erl_types:subst_all_vars_to_any(NewType),
 	{NewTypeNoVars, Constr1}
     end,
   NewTypeAcc = [TypeFun | TypeAcc],
   NewFormAcc = [{Form, Constr} | FormAcc],
-  contract_from_form(Left, RecDict, FileLine, NewTypeAcc, NewFormAcc);
-contract_from_form([], _RecDict, _FileLine, TypeAcc, FormAcc) ->
+  contract_from_form(Left, Module, RecDict, FileLine, NewTypeAcc, NewFormAcc);
+contract_from_form([], _Module, _RecDict, _FileLine, TypeAcc, FormAcc) ->
   {lists:reverse(TypeAcc), lists:reverse(FormAcc)}.
 
-process_constraints(Constrs, RecDict, ExpTypes, AllRecords) ->
-  Init0 = initialize_constraints(Constrs, RecDict, ExpTypes, AllRecords),
+process_constraints(Constrs, Module, RecDict, ExpTypes, AllRecords) ->
+  Init0 = initialize_constraints(Constrs, Module, RecDict, ExpTypes, AllRecords),
   Init = remove_cycles(Init0),
-  constraints_fixpoint(Init, RecDict, ExpTypes, AllRecords).
+  constraints_fixpoint(Init, Module, RecDict, ExpTypes, AllRecords).
 
-initialize_constraints(Constrs, RecDict, ExpTypes, AllRecords) ->
-  initialize_constraints(Constrs, RecDict, ExpTypes, AllRecords, []).
+initialize_constraints(Constrs, Module, RecDict, ExpTypes, AllRecords) ->
+  initialize_constraints(Constrs, Module, RecDict, ExpTypes, AllRecords, []).
 
-initialize_constraints([], _RecDict, _ExpTypes, _AllRecords, Acc) ->
+initialize_constraints([], _Module, _RecDict, _ExpTypes, _AllRecords, Acc) ->
   Acc;
-initialize_constraints([Constr|Rest], RecDict, ExpTypes, AllRecords, Acc) ->
+initialize_constraints([Constr|Rest], Module, RecDict, ExpTypes, AllRecords, Acc) ->
   case Constr of
     {type, _, constraint, [{atom, _, is_subtype}, [Type1, Type2]]} ->
-      T1 = final_form(Type1, RecDict, ExpTypes, AllRecords, dict:new()),
+      T1 = final_form(Type1, Module, ExpTypes, AllRecords, dict:new()),
       Entry = {T1, Type2},
-      initialize_constraints(Rest, RecDict, ExpTypes, AllRecords, [Entry|Acc]);
+      initialize_constraints(Rest, Module, RecDict, ExpTypes, AllRecords, [Entry|Acc]);
     {type, _, constraint, [{atom,_,Name}, List]} ->
       N = length(List),
       throw({error,
 	     io_lib:format("Unsupported type guard ~w/~w\n", [Name, N])})
   end.
 
-constraints_fixpoint(Constrs, RecDict, ExpTypes, AllRecords) ->
+constraints_fixpoint(Constrs, Module, RecDict, ExpTypes, AllRecords) ->
   VarDict =
-    constraints_to_dict(Constrs, RecDict, ExpTypes, AllRecords, dict:new()),
-  constraints_fixpoint(VarDict, Constrs, RecDict, ExpTypes, AllRecords).
+    constraints_to_dict(Constrs, Module, RecDict, ExpTypes, AllRecords, dict:new()),
+  constraints_fixpoint(VarDict, Module, Constrs, RecDict, ExpTypes, AllRecords).
 
-constraints_fixpoint(OldVarDict, Constrs, RecDict, ExpTypes, AllRecords) ->
+constraints_fixpoint(OldVarDict, Module, Constrs, RecDict, ExpTypes, AllRecords) ->
   NewVarDict =
-    constraints_to_dict(Constrs, RecDict, ExpTypes, AllRecords, OldVarDict),
+    constraints_to_dict(Constrs, Module, RecDict, ExpTypes, AllRecords, OldVarDict),
   case NewVarDict of
     OldVarDict ->
       DictFold =
@@ -477,25 +480,24 @@ constraints_fixpoint(OldVarDict, Constrs, RecDict, ExpTypes, AllRecords) ->
       FinalConstrs = dict:fold(DictFold, [], NewVarDict),
       {FinalConstrs, NewVarDict};
     _Other ->
-      constraints_fixpoint(NewVarDict, Constrs, RecDict, ExpTypes, AllRecords)
+      constraints_fixpoint(NewVarDict, Module, Constrs, RecDict, ExpTypes, AllRecords)
   end.
 
-final_form(Form, RecDict, ExpTypes, AllRecords, VarDict) ->
-  T1 = erl_types:t_from_form(Form, RecDict, VarDict),
-  erl_types:t_solve_remote(T1, ExpTypes, AllRecords).
+final_form(Form, Module, ExpTypes, AllRecords, VarDict) ->
+  erl_types:t_from_form(Form, ExpTypes, Module, AllRecords, VarDict).
 
-constraints_to_dict(Constrs, RecDict, ExpTypes, AllRecords, VarDict) ->
+constraints_to_dict(Constrs, Module, RecDict, ExpTypes, AllRecords, VarDict) ->
   Subtypes =
-    constraints_to_subs(Constrs, RecDict, ExpTypes, AllRecords, VarDict, []),
+    constraints_to_subs(Constrs, Module, RecDict, ExpTypes, AllRecords, VarDict, []),
   insert_constraints(Subtypes, dict:new()).
 
-constraints_to_subs([], _RecDict, _ExpTypes, _AllRecords, _VarDict, Acc) ->
+constraints_to_subs([], _Module, _RecDict, _ExpTypes, _AllRecords, _VarDict, Acc) ->
   Acc;
-constraints_to_subs([C|Rest], RecDict, ExpTypes, AllRecords, VarDict, Acc) ->
+constraints_to_subs([C|Rest], Module, RecDict, ExpTypes, AllRecords, VarDict, Acc) ->
   {T1, Form2} = C,
-  T2 = final_form(Form2, RecDict, ExpTypes, AllRecords, VarDict),
+  T2 = final_form(Form2, Module, ExpTypes, AllRecords, VarDict),
   NewAcc = [{subtype, T1, T2}|Acc],
-  constraints_to_subs(Rest, RecDict, ExpTypes, AllRecords, VarDict, NewAcc).
+  constraints_to_subs(Rest, Module, RecDict, ExpTypes, AllRecords, VarDict, NewAcc).
 
 %% Replaces variables with '_' when necessary to break up cycles among
 %% the constraints.
@@ -583,7 +585,7 @@ general_domain([], AccSig) ->
 -spec get_invalid_contract_warnings([module()],
                                     dialyzer_codeserver:codeserver(),
                                     dialyzer_plt:plt(),
-                                    opaques_fun()) -> [dial_warning()].
+                                    opaques_fun()) -> [raw_warning()].
 
 get_invalid_contract_warnings(Modules, CodeServer, Plt, FindOpaques) ->
   get_invalid_contract_warnings_modules(Modules, CodeServer, Plt, FindOpaques, []).
@@ -597,7 +599,7 @@ get_invalid_contract_warnings_modules([Mod|Mods], CodeServer, Plt, FindOpaques,
 get_invalid_contract_warnings_modules([], _CodeServer, _Plt, _FindOpaques, Acc) ->
   Acc.
 
-get_invalid_contract_warnings_funs([{MFA, {FileLine, Contract}}|Left],
+get_invalid_contract_warnings_funs([{MFA, {FileLine, Contract, _Xtra}}|Left],
 				   Plt, RecDict, FindOpaques, Acc) ->
   case dialyzer_plt:lookup(Plt, MFA) of
     none ->
@@ -607,12 +609,14 @@ get_invalid_contract_warnings_funs([{MFA, {FileLine, Contract}}|Left],
       Sig = erl_types:t_fun(Args, Ret),
       {M, _F, _A} = MFA,
       Opaques = FindOpaques(M),
+      {File, Line} = FileLine,
+      WarningInfo = {File, Line, MFA},
       NewAcc =
 	case check_contract(Contract, Sig, Opaques) of
 	  {error, invalid_contract} ->
-	    [invalid_contract_warning(MFA, FileLine, Sig, RecDict)|Acc];
+	    [invalid_contract_warning(MFA, WarningInfo, Sig, RecDict)|Acc];
 	  {error, {overlapping_contract, []}} ->
-	    [overlapping_contract_warning(MFA, FileLine)|Acc];
+	    [overlapping_contract_warning(MFA, WarningInfo)|Acc];
 	  {error, {extra_range, ExtraRanges, STRange}} ->
 	    Warn =
 	      case t_from_forms_without_remote(Contract#contract.forms,
@@ -625,12 +629,12 @@ get_invalid_contract_warnings_funs([{MFA, {FileLine, Contract}}|Left],
 	      end,
 	    case Warn of
 	      true ->
-		[extra_range_warning(MFA, FileLine, ExtraRanges, STRange)|Acc];
+		[extra_range_warning(MFA, WarningInfo, ExtraRanges, STRange)|Acc];
 	      false ->
 		Acc
 	    end;
 	  {error, Msg} ->
-	    [{?WARN_CONTRACT_SYNTAX, FileLine, Msg}|Acc];
+	    [{?WARN_CONTRACT_SYNTAX, WarningInfo, Msg}|Acc];
 	  ok ->
 	    {M, F, A} = MFA,
 	    CSig0 = get_contract_signature(Contract),
@@ -644,14 +648,14 @@ get_invalid_contract_warnings_funs([{MFA, {FileLine, Contract}}|Left],
 		BifSig = erl_types:t_fun(BifArgs, BifRet),
 		case check_contract(Contract, BifSig, Opaques) of
 		  {error, _} ->
-		    [invalid_contract_warning(MFA, FileLine, BifSig, RecDict)
+		    [invalid_contract_warning(MFA, WarningInfo, BifSig, RecDict)
 		     |Acc];
 		  ok ->
-		    picky_contract_check(CSig, BifSig, MFA, FileLine,
+		    picky_contract_check(CSig, BifSig, MFA, WarningInfo,
 					 Contract, RecDict, Acc)
 		end;
 	      false ->
-		picky_contract_check(CSig, Sig, MFA, FileLine, Contract,
+		picky_contract_check(CSig, Sig, MFA, WarningInfo, Contract,
 				     RecDict, Acc)
 	    end
 	end,
@@ -660,20 +664,20 @@ get_invalid_contract_warnings_funs([{MFA, {FileLine, Contract}}|Left],
 get_invalid_contract_warnings_funs([], _Plt, _RecDict, _FindOpaques, Acc) ->
   Acc.
 
-invalid_contract_warning({M, F, A}, FileLine, SuccType, RecDict) ->
+invalid_contract_warning({M, F, A}, WarningInfo, SuccType, RecDict) ->
   SuccTypeStr = dialyzer_utils:format_sig(SuccType, RecDict),
-  {?WARN_CONTRACT_TYPES, FileLine, {invalid_contract, [M, F, A, SuccTypeStr]}}.
+  {?WARN_CONTRACT_TYPES, WarningInfo, {invalid_contract, [M, F, A, SuccTypeStr]}}.
 
-overlapping_contract_warning({M, F, A}, FileLine) ->
-  {?WARN_CONTRACT_TYPES, FileLine, {overlapping_contract, [M, F, A]}}.
+overlapping_contract_warning({M, F, A}, WarningInfo) ->
+  {?WARN_CONTRACT_TYPES, WarningInfo, {overlapping_contract, [M, F, A]}}.
 
-extra_range_warning({M, F, A}, FileLine, ExtraRanges, STRange) ->
+extra_range_warning({M, F, A}, WarningInfo, ExtraRanges, STRange) ->
   ERangesStr = erl_types:t_to_string(ExtraRanges),
   STRangeStr = erl_types:t_to_string(STRange),
-  {?WARN_CONTRACT_SUPERTYPE, FileLine,
+  {?WARN_CONTRACT_SUPERTYPE, WarningInfo,
    {extra_range, [M, F, A, ERangesStr, STRangeStr]}}.
 
-picky_contract_check(CSig0, Sig0, MFA, FileLine, Contract, RecDict, Acc) ->
+picky_contract_check(CSig0, Sig0, MFA, WarningInfo, Contract, RecDict, Acc) ->
   CSig = erl_types:t_abstract_records(CSig0, RecDict),
   Sig = erl_types:t_abstract_records(Sig0, RecDict),
   case erl_types:t_is_equal(CSig, Sig) of
@@ -683,7 +687,7 @@ picky_contract_check(CSig0, Sig0, MFA, FileLine, Contract, RecDict, Acc) ->
 	    erl_types:t_is_unit(erl_types:t_fun_range(CSig))) of
 	true -> Acc;
 	false ->
-	  case extra_contract_warning(MFA, FileLine, Contract,
+	  case extra_contract_warning(MFA, WarningInfo, Contract,
 				      CSig0, Sig0, RecDict) of
 	    no_warning -> Acc;
 	    {warning, Warning} -> [Warning|Acc]
@@ -691,7 +695,7 @@ picky_contract_check(CSig0, Sig0, MFA, FileLine, Contract, RecDict, Acc) ->
       end
   end.
 
-extra_contract_warning({M, F, A}, FileLine, Contract, CSig, Sig, RecDict) ->
+extra_contract_warning({M, F, A}, WarningInfo, Contract, CSig, Sig, RecDict) ->
   %% We do not want to depend upon erl_types:t_to_string() possibly
   %% hiding the contents of opaque types.
   SigUnopaque = erl_types:t_unopaque(Sig),
@@ -722,7 +726,7 @@ extra_contract_warning({M, F, A}, FileLine, Contract, CSig, Sig, RecDict) ->
 	    {?WARN_CONTRACT_NOT_EQUAL,
 	     {contract_diff, [M, F, A, ContractString, SigString]}}
 	end,
-      {warning, {Tag, FileLine, Msg}}
+      {warning, {Tag, WarningInfo, Msg}}
   end.
 
 is_remote_types_related(Contract, CSig, Sig, RecDict) ->
@@ -749,8 +753,7 @@ is_remote_types_related(Contract, CSig, Sig, RecDict) ->
   end.
 
 t_from_forms_without_remote([{FType, []}], RecDict) ->
-  Type0 = erl_types:t_from_form(FType, RecDict),
-  Type1 = erl_types:subst_all_remote(Type0, erl_types:t_none()),
+  Type1 = erl_types:t_from_form_without_remote(FType, RecDict),
   {ok, erl_types:subst_all_vars_to_any(Type1)};
 t_from_forms_without_remote([{_FType, _Constrs}], _RecDict) ->
   %% 'When' constraints
diff --git a/lib/dialyzer/src/dialyzer_dataflow.erl b/lib/dialyzer/src/dialyzer_dataflow.erl
index 3cdbf3569a..48d1ab9ebc 100644
--- a/lib/dialyzer/src/dialyzer_dataflow.erl
+++ b/lib/dialyzer/src/dialyzer_dataflow.erl
@@ -2,7 +2,7 @@
 %%--------------------------------------------------------------------
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2006-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2006-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -28,14 +28,15 @@
 
 -module(dialyzer_dataflow).
 
--export([get_fun_types/4, get_warnings/5, format_args/3]).
+-export([get_fun_types/5, get_warnings/5, format_args/3]).
 
 %% Data structure interfaces.
 -export([state__add_warning/2, state__cleanup/1,
 	 state__duplicate/1, dispose_state/1,
          state__get_callgraph/1, state__get_races/1,
          state__get_records/1, state__put_callgraph/2,
-         state__put_races/2, state__records_only/1]).
+         state__put_races/2, state__records_only/1,
+         state__find_function/2]).
 
 -export_type([state/0]).
 
@@ -89,6 +90,8 @@
 -type type()      :: erl_types:erl_type().
 -type types()     :: erl_types:type_table().
 
+-type curr_fun()  :: 'undefined' | 'top' | mfa_or_funlbl().
+
 -define(no_arg, no_arg).
 
 -define(TYPE_LIMIT, 3).
@@ -96,17 +99,20 @@
 -define(BITS, 128).
 
 -record(state, {callgraph            :: dialyzer_callgraph:callgraph(),
+                codeserver           :: dialyzer_codeserver:codeserver(),
 		envs                 :: env_tab(),
 		fun_tab		     :: fun_tab(),
+                fun_homes            :: dict:dict(label(), mfa()),
 		plt		     :: dialyzer_plt:plt(),
 		opaques              :: [type()],
 		races = dialyzer_races:new() :: dialyzer_races:races(),
 		records = dict:new() :: types(),
 		tree_map	     :: dict:dict(label(), cerl:cerl()),
 		warning_mode = false :: boolean(),
-		warnings = []        :: [dial_warning()],
+		warnings = []        :: [raw_warning()],
 		work                 :: {[_], [_], sets:set()},
-		module               :: module()
+		module               :: module(),
+                curr_fun             :: curr_fun()
                }).
 
 -record(map, {dict = dict:new()   :: type_tab(),
@@ -115,7 +121,6 @@
               modified_stack = [] :: [{[Key :: term()],reference()}],
               ref = undefined     :: reference() | undefined}).
 
--type nowarn()    :: dialyzer_analysis_callgraph:no_warn_unused().
 -type env_tab()   :: dict:dict(label(), #map{}).
 -type fun_entry() :: {Args :: [type()], RetType :: type()}.
 -type fun_tab()   :: dict:dict('top' | label(),
@@ -133,22 +138,24 @@
 -type fun_types() :: dict:dict(label(), type()).
 
 -spec get_warnings(cerl:c_module(), dialyzer_plt:plt(),
-                   dialyzer_callgraph:callgraph(), types(), nowarn()) ->
-	{[dial_warning()], fun_types()}.
-
-get_warnings(Tree, Plt, Callgraph, Records, NoWarnUnused) ->
-  State1 = analyze_module(Tree, Plt, Callgraph, Records, true),
-  State2 =
-    state__renew_warnings(state__get_warnings(State1, NoWarnUnused), State1),
+                   dialyzer_callgraph:callgraph(),
+                   dialyzer_codeserver:codeserver(),
+                   types()) ->
+	{[raw_warning()], fun_types()}.
+
+get_warnings(Tree, Plt, Callgraph, Codeserver, Records) ->
+  State1 = analyze_module(Tree, Plt, Callgraph, Codeserver, Records, true),
+  State2 = state__renew_warnings(state__get_warnings(State1), State1),
   State3 = state__get_race_warnings(State2),
   {State3#state.warnings, state__all_fun_types(State3)}.
 
 -spec get_fun_types(cerl:c_module(), dialyzer_plt:plt(),
                     dialyzer_callgraph:callgraph(),
+                    dialyzer_codeserver:codeserver(),
                     types()) -> fun_types().
 
-get_fun_types(Tree, Plt, Callgraph, Records) ->
-  State = analyze_module(Tree, Plt, Callgraph, Records, false),
+get_fun_types(Tree, Plt, Callgraph, Codeserver, Records) ->
+  State = analyze_module(Tree, Plt, Callgraph, Codeserver, Records, false),
   state__all_fun_types(State).
 
 %%% ===========================================================================
@@ -157,11 +164,11 @@ get_fun_types(Tree, Plt, Callgraph, Records) ->
 %%%
 %%% ===========================================================================
 
-analyze_module(Tree, Plt, Callgraph, Records, GetWarnings) ->
+analyze_module(Tree, Plt, Callgraph, Codeserver, Records, GetWarnings) ->
   debug_pp(Tree, false),
   Module = cerl:atom_val(cerl:module_name(Tree)),
   TopFun = cerl:ann_c_fun([{label, top}], [], Tree),
-  State = state__new(Callgraph, TopFun, Plt, Module, Records),
+  State = state__new(Callgraph, Codeserver, TopFun, Plt, Module, Records),
   State1 = state__race_analysis(not GetWarnings, State),
   State2 = analyze_loop(State1),
   case GetWarnings of
@@ -175,25 +182,26 @@ analyze_module(Tree, Plt, Callgraph, Records, GetWarnings) ->
 
 analyze_loop(State) ->
   case state__get_work(State) of
-    none -> State;
-    {Fun, NewState1} ->
+    none -> state__set_curr_fun(undefined, State);
+    {Fun, NewState0} ->
+      NewState1 = state__set_curr_fun(get_label(Fun), NewState0),
       {ArgTypes, IsCalled} = state__get_args_and_status(Fun, NewState1),
       case not IsCalled of
 	true ->
 	  ?debug("Not handling (not called) ~w: ~s\n",
-		 [state__lookup_name(get_label(Fun), State),
+		 [NewState1#state.curr_fun,
 		  t_to_string(t_product(ArgTypes))]),
 	  analyze_loop(NewState1);
 	false ->
 	  case state__fun_env(Fun, NewState1) of
 	    none ->
 	      ?debug("Not handling (no env) ~w: ~s\n",
-		     [state__lookup_name(get_label(Fun), State),
+		     [NewState1#state.curr_fun,
 		      t_to_string(t_product(ArgTypes))]),
 	      analyze_loop(NewState1);
 	    Map ->
 	      ?debug("Handling fun ~p: ~s\n",
-		     [state__lookup_name(get_label(Fun), State),
+		     [NewState1#state.curr_fun,
 		      t_to_string(state__fun_type(Fun, NewState1))]),
 	      Vars = cerl:fun_vars(Fun),
 	      Map1 = enter_type_lists(Vars, ArgTypes, Map),
@@ -212,7 +220,7 @@ analyze_loop(State) ->
 	      {NewState4, _Map2, BodyType} =
 		traverse(Body, Map1, NewState3),
 	      ?debug("Done analyzing: ~w:~s\n",
-		     [state__lookup_name(get_label(Fun), State),
+		     [NewState1#state.curr_fun,
 		      t_to_string(t_fun(ArgTypes, BodyType))]),
               NewState5 =
                 case IsRaceAnalysisEnabled of
@@ -2780,10 +2788,9 @@ filter_match_fail([]) ->
 %%%
 %%% ===========================================================================
 
-state__new(Callgraph, Tree, Plt, Module, Records) ->
-  Opaques = erl_types:module_builtin_opaques(Module) ++
-    erl_types:t_opaque_from_records(Records),
-  TreeMap = build_tree_map(Tree),
+state__new(Callgraph, Codeserver, Tree, Plt, Module, Records) ->
+  Opaques = erl_types:t_opaque_from_records(Records),
+  {TreeMap, FunHomes} = build_tree_map(Tree, Callgraph),
   Funs = dict:fetch_keys(TreeMap),
   FunTab = init_fun_tab(Funs, dict:new(), TreeMap, Callgraph, Plt),
   ExportedFuns =
@@ -2791,7 +2798,8 @@ state__new(Callgraph, Tree, Plt, Module, Records) ->
   Work = init_work(ExportedFuns),
   Env = lists:foldl(fun(Fun, Env) -> dict:store(Fun, map__new(), Env) end,
 		    dict:new(), Funs),
-  #state{callgraph = Callgraph, envs = Env, fun_tab = FunTab, opaques = Opaques,
+  #state{callgraph = Callgraph, codeserver = Codeserver,
+         envs = Env, fun_tab = FunTab, fun_homes = FunHomes, opaques = Opaques,
 	 plt = Plt, races = dialyzer_races:new(), records = Records,
 	 warning_mode = false, warnings = [], work = Work, tree_map = TreeMap,
 	 module = Module}.
@@ -2830,7 +2838,7 @@ state__renew_race_list(RaceList, RaceListSize,
 state__renew_warnings(Warnings, State) ->
   State#state{warnings = Warnings}.
 
--spec state__add_warning(dial_warning(), state()) -> state().
+-spec state__add_warning(raw_warning(), state()) -> state().
 
 state__add_warning(Warn, #state{warnings = Warnings} = State) ->
   State#state{warnings = [Warn|Warnings]}.
@@ -2845,29 +2853,45 @@ state__add_warning(#state{warnings = Warnings, warning_mode = true} = State,
   Ann = cerl:get_ann(Tree),
   case Force of
     true ->
-      Warn = {Tag, {get_file(Ann), abs(get_line(Ann))}, Msg},
+      WarningInfo = {get_file(Ann),
+                     abs(get_line(Ann)),
+                     State#state.curr_fun},
+      Warn = {Tag, WarningInfo, Msg},
       ?debug("MSG ~s\n", [dialyzer:format_warning(Warn)]),
       State#state{warnings = [Warn|Warnings]};
     false ->
       case is_compiler_generated(Ann) of
-	true -> State;
-	false ->
-	  Warn = {Tag, {get_file(Ann), get_line(Ann)}, Msg},
+        true -> State;
+        false ->
+          WarningInfo = {get_file(Ann), get_line(Ann), State#state.curr_fun},
+          Warn = {Tag, WarningInfo, Msg},
           ?debug("MSG ~s\n", [dialyzer:format_warning(Warn)]),
-	  State#state{warnings = [Warn|Warnings]}
+          State#state{warnings = [Warn|Warnings]}
       end
   end.
 
+-spec state__set_curr_fun(curr_fun(), state()) -> state().
+
+state__set_curr_fun(undefined, State) ->
+  State#state{curr_fun = undefined};
+state__set_curr_fun(FunLbl, State) ->
+  State#state{curr_fun = find_function(FunLbl, State)}.
+
+-spec state__find_function(mfa_or_funlbl(), state()) -> mfa_or_funlbl().
+
+state__find_function(FunLbl, State) ->
+  find_function(FunLbl, State).
+
 state__get_race_warnings(#state{races = Races} = State) ->
   {Races1, State1} = dialyzer_races:get_race_warnings(Races, State),
   State1#state{races = Races1}.
 
 state__get_warnings(#state{tree_map = TreeMap, fun_tab = FunTab,
-			   callgraph = Callgraph, plt = Plt} = State,
-		    NoWarnUnused) ->
+			   callgraph = Callgraph, plt = Plt} = State) ->
   FoldFun =
     fun({top, _}, AccState) -> AccState;
        ({FunLbl, Fun}, AccState) ->
+        AccState1 = state__set_curr_fun(FunLbl, AccState),
 	{NotCalled, Ret} =
 	  case dict:fetch(get_label(Fun), FunTab) of
 	    {not_handled, {_Args0, Ret0}} -> {true, Ret0};
@@ -2875,17 +2899,12 @@ state__get_warnings(#state{tree_map = TreeMap, fun_tab = FunTab,
 	  end,
 	case NotCalled of
 	  true ->
-	    {Warn, Msg} =
-	      case dialyzer_callgraph:lookup_name(FunLbl, Callgraph) of
-		error -> {false, {}};
-		{ok, {_M, F, A} = MFA} ->
-		  {not sets:is_element(MFA, NoWarnUnused),
-		   {unused_fun, [F, A]}}
-	      end,
-	    case Warn of
-	      true -> state__add_warning(AccState, ?WARN_NOT_CALLED, Fun, Msg);
-	      false -> AccState
-	    end;
+            case dialyzer_callgraph:lookup_name(FunLbl, Callgraph) of
+              error -> AccState1;
+              {ok, {_M, F, A}} ->
+                Msg = {unused_fun, [F, A]},
+                state__add_warning(AccState1, ?WARN_NOT_CALLED, Fun, Msg)
+            end;
 	  false ->
 	    {Name, Contract} =
 	      case dialyzer_callgraph:lookup_name(FunLbl, Callgraph) of
@@ -2898,7 +2917,7 @@ state__get_warnings(#state{tree_map = TreeMap, fun_tab = FunTab,
 		%% Check if the function has a contract that allows this.
 		Warn =
 		  case Contract of
-		    none -> not parent_allows_this(FunLbl, State);
+		    none -> not parent_allows_this(FunLbl, AccState1);
 		    {value, C} ->
 		      GenRet = dialyzer_contracts:get_contract_return(C),
 		      not t_is_unit(GenRet)
@@ -2908,19 +2927,19 @@ state__get_warnings(#state{tree_map = TreeMap, fun_tab = FunTab,
 		    case classify_returns(Fun) of
 		      no_match ->
 			Msg = {no_return, [no_match|Name]},
-			state__add_warning(AccState, ?WARN_RETURN_NO_RETURN,
+			state__add_warning(AccState1, ?WARN_RETURN_NO_RETURN,
 					   Fun, Msg);
 		      only_explicit ->
 			Msg = {no_return, [only_explicit|Name]},
-			state__add_warning(AccState, ?WARN_RETURN_ONLY_EXIT,
+			state__add_warning(AccState1, ?WARN_RETURN_ONLY_EXIT,
 					   Fun, Msg);
 		      only_normal ->
 			Msg = {no_return, [only_normal|Name]},
-			state__add_warning(AccState, ?WARN_RETURN_NO_RETURN,
+			state__add_warning(AccState1, ?WARN_RETURN_NO_RETURN,
 					   Fun, Msg);
 		      both ->
 			Msg = {no_return, [both|Name]},
-			state__add_warning(AccState, ?WARN_RETURN_NO_RETURN,
+			state__add_warning(AccState1, ?WARN_RETURN_NO_RETURN,
 					   Fun, Msg)
 		    end;
 		  false ->
@@ -2958,8 +2977,10 @@ state__lookup_name(Fun, #state{callgraph = Callgraph}) ->
 state__lookup_record(Tag, Arity, #state{records = Records}) ->
   case erl_types:lookup_record(Tag, Arity, Records) of
     {ok, Fields} ->
-      {ok, t_tuple([t_atom(Tag)|
-		    [FieldType || {_FieldName, FieldType} <- Fields]])};
+      RecType =
+        t_tuple([t_atom(Tag)|
+                 [FieldType || {_FieldName, _Abstr, FieldType} <- Fields]]),
+      {ok, RecType};
     error ->
       error
   end.
@@ -2971,17 +2992,31 @@ state__get_args_and_status(Tree, #state{fun_tab = FunTab}) ->
     {ok, {ArgTypes, _}} -> {ArgTypes, true}
   end.
 
-build_tree_map(Tree) ->
+build_tree_map(Tree, Callgraph) ->
   Fun =
-    fun(T, Dict) ->
+    fun(T, {Dict, Homes, FunLbls} = Acc) ->
 	case cerl:is_c_fun(T) of
 	  true ->
-	    dict:store(get_label(T), T, Dict);
+            FunLbl = get_label(T),
+	    Dict1 = dict:store(FunLbl, T, Dict),
+            case catch dialyzer_callgraph:lookup_name(FunLbl, Callgraph) of
+              {ok, MFA} ->
+                F2 =
+                  fun(Lbl, Dict0) ->
+                      dict:store(Lbl, MFA, Dict0)
+                  end,
+                Homes1 = lists:foldl(F2, Homes, [FunLbl|FunLbls]),
+                {Dict1, Homes1, []};
+              _ ->
+                {Dict1, Homes, [FunLbl|FunLbls]}
+            end;
 	  false ->
-	    Dict
+            Acc
 	end
     end,
-  cerl_trees:fold(Fun, dict:new(), Tree).
+  Dict0 = dict:new(),
+  {Dict, Homes, _} = cerl_trees:fold(Fun, {Dict0, Dict0, []}, Tree),
+  {Dict, Homes}.
 
 init_fun_tab([top|Left], Dict, TreeMap, Callgraph, Plt) ->
   NewDict = dict:store(top, {[], t_none()}, Dict),
@@ -3439,6 +3474,13 @@ parent_allows_this(FunLbl, #state{callgraph = Callgraph, plt = Plt} =State) ->
       end
   end.
 
+find_function({_, _, _} = MFA, _State) ->
+  MFA;
+find_function(top, _State) ->
+  top;
+find_function(FunLbl, #state{fun_homes = Homes}) ->
+  dict:fetch(FunLbl, Homes).
+
 classify_returns(Tree) ->
   case find_terminals(cerl:fun_body(Tree)) of
     {false, false} -> no_match;
diff --git a/lib/dialyzer/src/dialyzer_options.erl b/lib/dialyzer/src/dialyzer_options.erl
index a92b8b1958..81907f7995 100644
--- a/lib/dialyzer/src/dialyzer_options.erl
+++ b/lib/dialyzer/src/dialyzer_options.erl
@@ -2,7 +2,7 @@
 %%-----------------------------------------------------------------------
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2006-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2006-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -28,7 +28,7 @@
 
 -module(dialyzer_options).
 
--export([build/1]).
+-export([build/1, build_warnings/2]).
 
 -include("dialyzer.hrl").
 
@@ -46,13 +46,11 @@ build(Opts) ->
 		  ?WARN_CALLGRAPH,
 		  ?WARN_FAILING_CALL,
 		  ?WARN_BIN_CONSTRUCTION,
-		  ?WARN_CALLGRAPH,
 		  ?WARN_CONTRACT_RANGE,
 		  ?WARN_CONTRACT_TYPES,
 		  ?WARN_CONTRACT_SYNTAX,
 		  ?WARN_BEHAVIOUR,
-		  ?WARN_UNDEFINED_CALLBACK,
-                  ?WARN_UNKNOWN],
+		  ?WARN_UNDEFINED_CALLBACK],
   DefaultWarns1 = ordsets:from_list(DefaultWarns),
   InitPlt = dialyzer_plt:get_default_plt(),
   DefaultOpts = #options{},
@@ -270,7 +268,7 @@ assert_solvers([v2|Terms]) ->
 assert_solvers([Term|_]) ->
   bad_option("Illegal value for solver", Term).
 
--spec build_warnings([atom()], [dial_warning()]) -> [dial_warning()].
+-spec build_warnings([atom()], dial_warn_tags()) -> dial_warn_tags().
 
 build_warnings([Opt|Opts], Warnings) ->
   NewWarnings =
@@ -302,6 +300,8 @@ build_warnings([Opt|Opts], Warnings) ->
 	ordsets:add_element(?WARN_RETURN_ONLY_EXIT, Warnings);
       race_conditions ->
 	ordsets:add_element(?WARN_RACE_CONDITION, Warnings);
+      no_missing_calls ->
+        ordsets:del_element(?WARN_CALLGRAPH, Warnings);
       specdiffs ->
 	S = ordsets:from_list([?WARN_CONTRACT_SUBTYPE, 
 			       ?WARN_CONTRACT_SUPERTYPE,
@@ -311,8 +311,8 @@ build_warnings([Opt|Opts], Warnings) ->
 	ordsets:add_element(?WARN_CONTRACT_SUBTYPE, Warnings);
       underspecs ->
 	ordsets:add_element(?WARN_CONTRACT_SUPERTYPE, Warnings);
-      no_unknown ->
-	ordsets:del_element(?WARN_UNKNOWN, Warnings);
+      unknown ->
+	ordsets:add_element(?WARN_UNKNOWN, Warnings);
       OtherAtom ->
 	bad_option("Unknown dialyzer warning option", OtherAtom)
     end,
diff --git a/lib/dialyzer/src/dialyzer_plt.erl b/lib/dialyzer/src/dialyzer_plt.erl
index 63798f44b1..7c970daf41 100644
--- a/lib/dialyzer/src/dialyzer_plt.erl
+++ b/lib/dialyzer/src/dialyzer_plt.erl
@@ -158,9 +158,7 @@ lookup_contract(#mini_plt{contracts = ETSContracts},
   ets_table_lookup(ETSContracts, MFA).
 
 -spec lookup_callbacks(plt(), module()) ->
-	 'none' | {'value', [{mfa(), {{Filename::string(),
-				       Line::pos_integer()},
-				      #contract{}}}]}.
+	 'none' | {'value', [{mfa(), dialyzer_contracts:file_contract()}]}.
 
 lookup_callbacks(#mini_plt{callbacks = ETSCallbacks}, Mod) when is_atom(Mod) ->
   ets_table_lookup(ETSCallbacks, Mod).
@@ -618,9 +616,7 @@ table_insert_list(Plt, [{Key, Val}|Left]) ->
 table_insert_list(Plt, []) ->
   Plt.
 
-table_insert(Plt, Key, {_Ret, _Arg} = Obj) ->
-  dict:store(Key, Obj, Plt);
-table_insert(Plt, Key, #contract{} = C) ->
+table_insert(Plt, Key, {_File, #contract{}, _Xtra} = C) ->
   dict:store(Key, C, Plt).
 
 table_lookup(Plt, Obj) ->
diff --git a/lib/dialyzer/src/dialyzer_races.erl b/lib/dialyzer/src/dialyzer_races.erl
index 2a8aba5d8f..48eb331239 100644
--- a/lib/dialyzer/src/dialyzer_races.erl
+++ b/lib/dialyzer/src/dialyzer_races.erl
@@ -85,9 +85,9 @@
 -type race_tag()   :: 'whereis_register' | 'whereis_unregister'
                     | 'ets_lookup_insert' | 'mnesia_dirty_read_write'.
 
-%% The following type is similar to the dial_warning() type but has a
+%% The following type is similar to the raw_warning() type but has a
 %% tag which is local to this module and is not propagated to outside
--type dial_race_warning() :: {race_warn_tag(), file_line(), {atom(), [term()]}}.
+-type dial_race_warning() :: {race_warn_tag(), warning_info(), {atom(), [term()]}}.
 -type race_warn_tag() :: ?WARN_WHEREIS_REGISTER | ?WARN_WHEREIS_UNREGISTER
                       | ?WARN_ETS_LOOKUP_INSERT | ?WARN_MNESIA_DIRTY_READ_WRITE.
 
@@ -312,10 +312,13 @@ race(State) ->
         DepList = fixup_race_list(RaceWarnTag, VarArgs, State1),
         {State2, RaceWarn} =
           get_race_warn(Fun, Args, ArgTypes, DepList, State),
+        {File, Line} = FileLine,
+        CurrMFA = dialyzer_dataflow:state__find_function(CurrFun, State),
+        WarningInfo = {File, Line, CurrMFA},
         race(
           state__add_race_warning(
             state__renew_race_tags(T, State2), RaceWarn, RaceWarnTag,
-            FileLine))
+            WarningInfo))
     end,
   state__renew_race_tags([], RetState).
 
@@ -2324,7 +2327,7 @@ get_race_warnings_helper(Warnings, State) ->
     [] ->
       {dialyzer_dataflow:state__get_races(State), State};
     [H|T] ->
-      {RaceWarnTag, FileLine, {race_condition, [M, F, A, AT, S, DepList]}} = H,
+      {RaceWarnTag, WarningInfo, {race_condition, [M, F, A, AT, S, DepList]}} = H,
       Reason =
         case RaceWarnTag of
           ?WARN_WHEREIS_REGISTER ->
@@ -2347,7 +2350,7 @@ get_race_warnings_helper(Warnings, State) ->
                        "caused by its combination with ")
         end,
       W =
-        {?WARN_RACE_CONDITION, FileLine,
+        {?WARN_RACE_CONDITION, WarningInfo,
          {race_condition,
           [M, F, dialyzer_dataflow:format_args(A, AT, S), Reason]}},
       get_race_warnings_helper(T,
@@ -2377,12 +2380,12 @@ get_reason(DependencyList, Reason) ->
       end
   end.
 
-state__add_race_warning(State, RaceWarn, RaceWarnTag, FileLine) ->
+state__add_race_warning(State, RaceWarn, RaceWarnTag, WarningInfo) ->
   case RaceWarn of
     no_race -> State;
     _Else ->
       Races = dialyzer_dataflow:state__get_races(State),
-      Warn = {RaceWarnTag, FileLine, RaceWarn},
+      Warn = {RaceWarnTag, WarningInfo, RaceWarn},
       dialyzer_dataflow:state__put_races(add_race_warning(Warn, Races), State)
   end.
 
diff --git a/lib/dialyzer/src/dialyzer_succ_typings.erl b/lib/dialyzer/src/dialyzer_succ_typings.erl
index ef9b00e203..7ceb19e30a 100644
--- a/lib/dialyzer/src/dialyzer_succ_typings.erl
+++ b/lib/dialyzer/src/dialyzer_succ_typings.erl
@@ -29,7 +29,7 @@
 
 -export([analyze_callgraph/3, 
 	 analyze_callgraph/6,
-	 get_warnings/8
+	 get_warnings/7
 	]).
 
 -export([
@@ -69,10 +69,8 @@
 
 -type scc()             :: [mfa_or_funlbl()] | [module()].
 
-
 -record(st, {callgraph      :: dialyzer_callgraph:callgraph(),
 	     codeserver     :: dialyzer_codeserver:codeserver(),
-	     no_warn_unused :: sets:set(mfa()),
 	     parent = none  :: parent(),
 	     timing_server  :: dialyzer_timing:timing_server(),
              solvers        :: [solver()],
@@ -137,18 +135,17 @@ get_refined_success_typings(SCCs, #st{callgraph = Callgraph,
 
 -type doc_plt() :: 'undefined' | dialyzer_plt:plt().
 -spec get_warnings(dialyzer_callgraph:callgraph(), dialyzer_plt:plt(),
-		   doc_plt(), dialyzer_codeserver:codeserver(), sets:set(mfa()),
+		   doc_plt(), dialyzer_codeserver:codeserver(),
 		   dialyzer_timing:timing_server(), [solver()], pid()) ->
-	 {[dial_warning()], dialyzer_plt:plt(), doc_plt()}.
+	 {[raw_warning()], dialyzer_plt:plt(), doc_plt()}.
 
 get_warnings(Callgraph, Plt, DocPlt, Codeserver,
-	     NoWarnUnused, TimingServer, Solvers, Parent) ->
+	     TimingServer, Solvers, Parent) ->
   InitState =
     init_state_and_get_success_typings(Callgraph, Plt, Codeserver,
 				       TimingServer, Solvers, Parent),
-  NewState = InitState#st{no_warn_unused = NoWarnUnused},
-  Mods = dialyzer_callgraph:modules(NewState#st.callgraph),
-  MiniPlt = NewState#st.plt,
+  Mods = dialyzer_callgraph:modules(InitState#st.callgraph),
+  MiniPlt = InitState#st.plt,
   FindOpaques = lookup_and_find_opaques_fun(Codeserver),
   CWarns =
     dialyzer_contracts:get_invalid_contract_warnings(Mods, Codeserver,
@@ -156,31 +153,30 @@ get_warnings(Callgraph, Plt, DocPlt, Codeserver,
   MiniDocPlt = dialyzer_plt:get_mini_plt(DocPlt),
   ModWarns =
     ?timing(TimingServer, "warning",
-	    get_warnings_from_modules(Mods, NewState, MiniDocPlt)),
+	    get_warnings_from_modules(Mods, InitState, MiniDocPlt)),
   {postprocess_warnings(CWarns ++ ModWarns, Codeserver),
    dialyzer_plt:restore_full_plt(MiniPlt, Plt),
    dialyzer_plt:restore_full_plt(MiniDocPlt, DocPlt)}.
 
 get_warnings_from_modules(Mods, State, DocPlt) ->
   #st{callgraph = Callgraph, codeserver = Codeserver,
-      no_warn_unused = NoWarnUnused, plt = Plt,
-      timing_server = TimingServer} = State,
-  Init = {Codeserver, Callgraph, NoWarnUnused, Plt, DocPlt},
+      plt = Plt, timing_server = TimingServer} = State,
+  Init = {Codeserver, Callgraph, Plt, DocPlt},
   dialyzer_coordinator:parallel_job(warnings, Mods, Init, TimingServer).
 
--spec collect_warnings(module(), warnings_init_data()) -> [dial_warning()].
+-spec collect_warnings(module(), warnings_init_data()) -> [raw_warning()].
 
-collect_warnings(M, {Codeserver, Callgraph, NoWarnUnused, Plt, DocPlt}) ->
+collect_warnings(M, {Codeserver, Callgraph, Plt, DocPlt}) ->
   ModCode = dialyzer_codeserver:lookup_mod_code(M, Codeserver),
   Records = dialyzer_codeserver:lookup_mod_records(M, Codeserver),
   Contracts = dialyzer_codeserver:lookup_mod_contracts(M, Codeserver),
   AllFuns = collect_fun_info([ModCode]),
   %% Check if there are contracts for functions that do not exist
-  Warnings1 = 
+  Warnings1 =
     dialyzer_contracts:contracts_without_fun(Contracts, AllFuns, Callgraph),
   {Warnings2, FunTypes} =
-    dialyzer_dataflow:get_warnings(ModCode, Plt, Callgraph,
-				   Records, NoWarnUnused),
+    dialyzer_dataflow:get_warnings(ModCode, Plt, Callgraph, Codeserver,
+				   Records),
   Attrs = cerl:module_attrs(ModCode),
   Warnings3 =
     dialyzer_behaviours:check_callbacks(M, Attrs, Records, Plt, Codeserver),
@@ -197,17 +193,19 @@ postprocess_warnings(RawWarnings, Codeserver) ->
 
 postprocess_dataflow_warns([], _Callgraph, WAcc, Acc) ->
   lists:reverse(Acc, WAcc);
-postprocess_dataflow_warns([{?WARN_CONTRACT_RANGE, {CallF, CallL}, Msg}|Rest],
+postprocess_dataflow_warns([{?WARN_CONTRACT_RANGE, WarningInfo, Msg}|Rest],
 			   Codeserver, WAcc, Acc) ->
+  {CallF, CallL, _CallMFA} = WarningInfo,
   {contract_range, [Contract, M, F, A, ArgStrings, CRet]} = Msg,
   case dialyzer_codeserver:lookup_mfa_contract({M,F,A}, Codeserver) of
-    {ok, {{ContrF, _ContrL} = FileLine, _C}} ->
+    {ok, {{ContrF, ContrL}, _C, _X}} ->
       case CallF =:= ContrF of
 	true ->
 	  NewMsg = {contract_range, [Contract, M, F, ArgStrings, CallL, CRet]},
-	  W = {?WARN_CONTRACT_RANGE, FileLine, NewMsg},
+          WarningInfo2 = {ContrF, ContrL, {M, F, A}},
+	  W = {?WARN_CONTRACT_RANGE, WarningInfo2, NewMsg},
 	  Filter =
-	    fun({?WARN_CONTRACT_TYPES, FL, _}) when FL =:= FileLine -> false;
+	    fun({?WARN_CONTRACT_TYPES, WI, _}) when WI =:= WarningInfo2 -> false;
 	       (_) -> true
 	    end,
 	  FilterWAcc = lists:filter(Filter, WAcc),
@@ -219,7 +217,7 @@ postprocess_dataflow_warns([{?WARN_CONTRACT_RANGE, {CallF, CallL}, Msg}|Rest],
       %% The contract is not in a module that is currently under analysis.
       %% We display the warning in the file/line of the call.
       NewMsg = {contract_range, [Contract, M, F, ArgStrings, CallL, CRet]},
-      W = {?WARN_CONTRACT_RANGE, {CallF, CallL}, NewMsg},
+      W = {?WARN_CONTRACT_RANGE, WarningInfo, NewMsg},
       postprocess_dataflow_warns(Rest, Codeserver, WAcc, [W|Acc])
   end.
   
@@ -262,7 +260,7 @@ refine_one_module(M, {CodeServer, Callgraph, Plt, _Solvers}) ->
   Records = dialyzer_codeserver:lookup_mod_records(M, CodeServer),
   FunTypes = get_fun_types_from_plt(AllFuns, Callgraph, Plt),
   NewFunTypes =
-    dialyzer_dataflow:get_fun_types(ModCode, Plt, Callgraph, Records),
+    dialyzer_dataflow:get_fun_types(ModCode, Plt, Callgraph, CodeServer, Records),
   Contracts1 = dialyzer_codeserver:lookup_mod_contracts(M, CodeServer),
   Contracts = orddict:from_list(dict:to_list(Contracts1)),
   FindOpaques = find_opaques_fun(Records),
@@ -401,7 +399,7 @@ decorate_succ_typings(Contracts, Callgraph, FunTypes, FindOpaques) ->
           case dialyzer_callgraph:lookup_name(Label, Callgraph) of
             {ok, MFA} ->
               case orddict:find(MFA, Contracts) of
-                {ok, {_FileLine, Contract}} ->
+                {ok, {_FileLine, Contract, _Xtra}} ->
                   Args = dialyzer_contracts:get_contract_args(Contract),
                   Ret = dialyzer_contracts:get_contract_return(Contract),
                   C = erl_types:t_fun(Args, Ret),
@@ -422,10 +420,7 @@ lookup_and_find_opaques_fun(Codeserver) ->
   end.
 
 find_opaques_fun(Records) ->
-  fun(Module) ->
-      erl_types:module_builtin_opaques(Module) ++
-      erl_types:t_opaque_from_records(Records)
-  end.
+  fun(_Module) -> erl_types:t_opaque_from_records(Records) end.
 
 get_fun_types_from_plt(FunList, Callgraph, Plt) ->
   get_fun_types_from_plt(FunList, Callgraph, Plt, dict:new()).
diff --git a/lib/dialyzer/src/dialyzer_timing.erl b/lib/dialyzer/src/dialyzer_timing.erl
index b1a4bdc07c..759d49abc8 100644
--- a/lib/dialyzer/src/dialyzer_timing.erl
+++ b/lib/dialyzer/src/dialyzer_timing.erl
@@ -38,7 +38,7 @@ init(Active) ->
   case Active of
     true ->
       io:format("\n"),
-      spawn_link(fun() -> loop(now(), 0, "") end);
+      spawn_link(fun() -> loop(erlang:monotonic_time(), 0, "") end);
     debug ->
       io:format("\n"),
       spawn_link(fun() -> debug_loop("") end);
@@ -105,14 +105,14 @@ debug_loop(Phase) ->
 
 start_stamp(none, _) -> ok;
 start_stamp(Pid, Msg) ->
-  Pid ! {stamp, Msg, now()},
+  Pid ! {stamp, Msg, erlang:monotonic_time()},
   ok.
 
 -spec end_stamp(timing_server()) -> ok.
 
 end_stamp(none) -> ok;
 end_stamp(Pid) ->
-  Pid ! {stamp, now()},
+  Pid ! {stamp, erlang:monotonic_time()},
   ok.
 
 -spec send_size_info(timing_server(), integer(), string()) -> ok.
@@ -126,8 +126,8 @@ send_size_info(Pid, Size, Unit) ->
 
 stop(none) -> ok;
 stop(Pid) ->
-  Pid ! {self(), stop, now()},
+  Pid ! {self(), stop, erlang:monotonic_time()},
   receive ok -> ok end.
 
 diff(T2, T1) ->
-  timer:now_diff(T2,T1) / 1000000.
+  (T2-T1) / erlang:convert_time_unit(1, seconds, native).
diff --git a/lib/dialyzer/src/dialyzer_typesig.erl b/lib/dialyzer/src/dialyzer_typesig.erl
index 3d03ed3ab3..6c14860d7d 100644
--- a/lib/dialyzer/src/dialyzer_typesig.erl
+++ b/lib/dialyzer/src/dialyzer_typesig.erl
@@ -2,7 +2,7 @@
 %%-----------------------------------------------------------------------
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2006-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2006-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -1579,11 +1579,11 @@ get_bif_constr({M, F, A} = _BIF, Dst, Args, _State) ->
 eval_inv_arith('+', _Pos, Dst, Arg) ->
   bif_return(erlang, '-', 2, [Dst, Arg]);
 eval_inv_arith('*', _Pos, Dst, Arg) ->
-  case t_number_vals(Arg) of
-    [0] -> t_integer();
-    _ ->
+  Zero = t_from_term(0),
+  case t_is_none(t_inf(Arg, Zero)) of
+    false -> t_integer();
+    true ->
       TmpRet = bif_return(erlang, 'div', 2, [Dst, Arg]),
-      Zero = t_from_term(0),
       %% If 0 is not part of the result, it cannot be part of the argument.
       case t_is_subtype(Zero, Dst) of
 	false -> t_subtract(TmpRet, Zero);
@@ -3264,7 +3264,7 @@ lookup_record(Records, Tag, Arity) ->
     {ok, Fields} ->
       RecType =
         t_tuple([t_from_term(Tag)|
-                 [FieldType || {_FieldName, FieldType} <- Fields]]),
+                 [FieldType || {_FieldName, _Abstr, FieldType} <- Fields]]),
       {ok, RecType};
     error ->
       error
@@ -3275,7 +3275,7 @@ is_literal_record(Tree) ->
   lists:member(record, Ann).
 
 family(L) ->
-    sofs:to_external(sofs:rel2fam(sofs:relation(L))).
+  dialyzer_utils:family(L).
 
 %% ============================================================================
 %%
diff --git a/lib/dialyzer/src/dialyzer_utils.erl b/lib/dialyzer/src/dialyzer_utils.erl
index 5297a3a7b4..e29fc3ba8b 100644
--- a/lib/dialyzer/src/dialyzer_utils.erl
+++ b/lib/dialyzer/src/dialyzer_utils.erl
@@ -2,7 +2,7 @@
 %%-----------------------------------------------------------------------
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2006-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2006-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -40,12 +40,16 @@
 	 get_core_from_src/2,
 	 get_record_and_type_info/1,
 	 get_spec_info/3,
+         get_fun_meta_info/3,
+         is_suppressed_fun/2,
+         is_suppressed_tag/3,
 	 merge_records/2,
 	 pp_hook/0,
 	 process_record_remote_types/1,
          sets_filter/2,
 	 src_compiler_opts/0,
-	 parallelism/0
+	 parallelism/0,
+         family/1
 	]).
 
 -include("dialyzer.hrl").
@@ -59,13 +63,13 @@ print_types(RecDict) ->
 
 print_types1([], _) ->
   ok;
-print_types1([{type, _Name} = Key|T], RecDict) ->
-  {ok, {_Mod, Form, _Args}} = dict:find(Key, RecDict),
-  io:format("\n~w: ~w\n", [Key, erl_types:t_from_form(Form, RecDict)]),
+print_types1([{type, _Name, _NArgs} = Key|T], RecDict) ->
+  {ok, {{_Mod, _Form, _Args}, Type}} = dict:find(Key, RecDict),
+  io:format("\n~w: ~w\n", [Key, Type]),
   print_types1(T, RecDict);
-print_types1([{opaque, _Name} = Key|T], RecDict) ->
-  {ok, {_Mod, Form, _Args}} = dict:find(Key, RecDict),
-  io:format("\n~w: ~w\n", [Key, erl_types:t_from_form(Form, RecDict)]),
+print_types1([{opaque, _Name, _NArgs} = Key|T], RecDict) ->
+  {ok, {{_Mod, _Form, _Args}, Type}} = dict:find(Key, RecDict),
+  io:format("\n~w: ~w\n", [Key, Type]),
   print_types1(T, RecDict);
 print_types1([{record, _Name} = Key|T], RecDict) ->
   {ok, [{_Arity, _Fields} = AF]} = dict:find(Key, RecDict),
@@ -80,7 +84,9 @@ print_types1([{record, _Name} = Key|T], RecDict) ->
 
 -type abstract_code() :: [tuple()]. %% XXX: import from somewhere
 -type comp_options()  :: [compile:option()].
--type mod_or_fname()  :: atom() | file:filename().
+-type mod_or_fname()  :: module() | file:filename().
+-type fa()            :: {atom(), arity()}.
+-type codeserver()    :: dialyzer_codeserver:codeserver().
 
 %% ============================================================================
 %%
@@ -215,28 +221,29 @@ get_record_and_type_info([{attribute, _, type, {{record, Name}, Fields0, []}}
 get_record_and_type_info([{attribute, _, Attr, {Name, TypeForm}}|Left],
 			 Module, Records, RecDict) when Attr =:= 'type';
                                                         Attr =:= 'opaque' ->
-  try
-    NewRecDict = add_new_type(Attr, Name, TypeForm, [], Module, RecDict),
-    get_record_and_type_info(Left, Module, Records, NewRecDict)
+  try add_new_type(Attr, Name, TypeForm, [], Module, RecDict) of
+    NewRecDict ->
+      get_record_and_type_info(Left, Module, Records, NewRecDict)
   catch
     throw:{error, _} = Error -> Error
   end;
 get_record_and_type_info([{attribute, _, Attr, {Name, TypeForm, Args}}|Left],
 			 Module, Records, RecDict) when Attr =:= 'type';
                                                         Attr =:= 'opaque' ->
-  try
-    NewRecDict = add_new_type(Attr, Name, TypeForm, Args, Module, RecDict),
-    get_record_and_type_info(Left, Module, Records, NewRecDict)
+  try add_new_type(Attr, Name, TypeForm, Args, Module, RecDict) of
+    NewRecDict ->
+      get_record_and_type_info(Left, Module, Records, NewRecDict)
   catch
     throw:{error, _} = Error -> Error
   end;
 get_record_and_type_info([_Other|Left], Module, Records, RecDict) ->
   get_record_and_type_info(Left, Module, Records, RecDict);
 get_record_and_type_info([], _Module, Records, RecDict) ->
-  case type_record_fields(lists:reverse(Records), RecDict) of
-    {ok, _NewRecDict} = Ok ->
-      ?debug(_NewRecDict),
-      Ok;
+  case
+    check_type_of_record_fields(lists:reverse(Records), RecDict)
+  of
+    ok ->
+      {ok, RecDict};
     {error, Name, Error} ->
       {error, flat_format("  Error while parsing #~w{}: ~s\n", [Name, Error])}
   end.
@@ -248,20 +255,21 @@ add_new_type(TypeOrOpaque, Name, TypeForm, ArgForms, Module, RecDict) ->
       Msg = flat_format("Type ~s/~w already defined\n", [Name, Arity]),
       throw({error, Msg});
     false ->
-      ArgTypes = [erl_types:t_from_form(X) || X <- ArgForms],
-      case lists:all(fun erl_types:t_is_var/1, ArgTypes) of
-	true ->
-	  ArgNames = [erl_types:t_var_name(X) || X <- ArgTypes],
+      try erl_types:t_var_names(ArgForms) of
+        ArgNames ->
 	  dict:store({TypeOrOpaque, Name, Arity},
-                     {Module, TypeForm, ArgNames}, RecDict);
-	false ->
+                     {{Module, TypeForm, ArgNames},
+                      erl_types:t_any()}, RecDict)
+      catch
+        _:_ ->
 	  throw({error, flat_format("Type declaration for ~w does not "
 				    "have variables as parameters", [Name])})
       end
   end.
 
 get_record_fields(Fields, RecDict) ->
-  get_record_fields(Fields, RecDict, []).
+  Fs = get_record_fields(Fields, RecDict, []),
+  {ok, [{Name, Form, erl_types:t_any()} || {Name, Form} <- Fs]}.
 
 get_record_fields([{typed_record_field, OrdRecField, TypeForm}|Left],
 		  RecDict, Acc) ->
@@ -270,7 +278,7 @@ get_record_fields([{typed_record_field, OrdRecField, TypeForm}|Left],
       {record_field, _Line, Name0} -> erl_parse:normalise(Name0);
       {record_field, _Line, Name0, _Init} -> erl_parse:normalise(Name0)
     end,
-    get_record_fields(Left, RecDict, [{Name, TypeForm}|Acc]);
+  get_record_fields(Left, RecDict, [{Name, TypeForm}|Acc]);
 get_record_fields([{record_field, _Line, Name}|Left], RecDict, Acc) ->
   NewAcc = [{erl_parse:normalise(Name), {var, -1, '_'}}|Acc],
   get_record_fields(Left, RecDict, NewAcc);
@@ -278,54 +286,66 @@ get_record_fields([{record_field, _Line, Name, _Init}|Left], RecDict, Acc) ->
   NewAcc = [{erl_parse:normalise(Name), {var, -1, '_'}}|Acc],
   get_record_fields(Left, RecDict, NewAcc);
 get_record_fields([], _RecDict, Acc) ->
-  {ok, lists:reverse(Acc)}.
+  lists:reverse(Acc).
 
-type_record_fields([], RecDict) ->
-  {ok, RecDict};
-type_record_fields([RecKey|Recs], RecDict) ->
-  {ok, [{Arity, Fields}]} = dict:find(RecKey, RecDict),
+%% Just check the local types. process_record_remote_types will add
+%% the types later.
+check_type_of_record_fields([], _RecDict) ->
+  ok;
+check_type_of_record_fields([RecKey|Recs], RecDict) ->
+  {ok, [{_Arity, Fields}]} = dict:find(RecKey, RecDict),
   try
-    TypedFields =
-      [{FieldName, erl_types:t_from_form(FieldTypeForm, RecDict)}
-       || {FieldName, FieldTypeForm} <- Fields],
-    RecDict1 = dict:store(RecKey, [{Arity, TypedFields}], RecDict),
-    Fun = fun(OldOrdDict) ->
-              orddict:store(Arity, TypedFields, OldOrdDict)
-          end,
-    RecDict2 = dict:update(RecKey, Fun, RecDict1),
-    type_record_fields(Recs, RecDict2)
+    [erl_types:t_from_form_without_remote(FieldTypeForm, RecDict)
+     || {_FieldName, FieldTypeForm, _} <- Fields]
+  of
+    L when is_list(L) ->
+      check_type_of_record_fields(Recs, RecDict)
   catch
     throw:{error, Error} ->
       {record, Name} = RecKey,
       {error, Name, Error}
   end.
 
--spec process_record_remote_types(dialyzer_codeserver:codeserver()) -> dialyzer_codeserver:codeserver().
+-spec process_record_remote_types(codeserver()) -> codeserver().
 
+%% The field types are cached. Used during analysis when handling records.
 process_record_remote_types(CServer) ->
   TempRecords = dialyzer_codeserver:get_temp_records(CServer),
   TempExpTypes = dialyzer_codeserver:get_temp_exported_types(CServer),
-  RecordFun =
-    fun(Key, Value) ->
-	case Key of
-	  {record, _Name} ->
-	    FieldFun =
-	      fun(_Arity, Fields) ->
-		  [{Name, erl_types:t_solve_remote(Field, TempExpTypes,
-                                                   TempRecords)}
-                   || {Name, Field} <- Fields]
-	      end,
-	    orddict:map(FieldFun, Value);
-	  _Other -> Value
-	end
-    end,
   ModuleFun =
-    fun(_Module, Record) ->
+    fun(Module, Record) ->
+        RecordFun =
+          fun(Key, Value) ->
+              case Key of
+                {record, _Name} ->
+                  FieldFun =
+                    fun(_Arity, Fields) ->
+                        [{Name, Field,
+                          erl_types:t_from_form(Field,
+                                                TempExpTypes,
+                                                Module,
+                                                TempRecords)}
+                         || {Name, Field, _} <- Fields]
+                    end,
+                  orddict:map(FieldFun, Value);
+                {opaque, _, _} ->
+                  {{_Module, Form, _ArgNames}=F, _Type} = Value,
+                  Type = erl_types:t_from_form(Form, TempExpTypes, Module,
+                                               TempRecords),
+                  {F, Type};
+                _Other -> Value
+              end
+          end,
 	dict:map(RecordFun, Record)
     end,
-  NewRecords = dict:map(ModuleFun, TempRecords),
-  CServer1 = dialyzer_codeserver:finalize_records(NewRecords, CServer),
-  dialyzer_codeserver:finalize_exported_types(TempExpTypes, CServer1).
+  try dict:map(ModuleFun, TempRecords) of
+    NewRecords ->
+      CServer1 = dialyzer_codeserver:finalize_records(NewRecords, CServer),
+      dialyzer_codeserver:finalize_exported_types(TempExpTypes, CServer1)
+  catch
+    throw:{error, _RecName, _Error} = Error->
+      Error
+  end.
 
 -spec merge_records(dict:dict(), dict:dict()) -> dict:dict().
 
@@ -341,12 +361,23 @@ merge_records(NewRecords, OldRecords) ->
 -type spec_dict()     :: dict:dict().
 -type callback_dict() :: dict:dict().
 
--spec get_spec_info(atom(), abstract_code(), dict:dict()) ->
+-spec get_spec_info(module(), abstract_code(), dict:dict()) ->
         {'ok', spec_dict(), callback_dict()} | {'error', string()}.
 
 get_spec_info(ModName, AbstractCode, RecordsDict) ->
+  OptionalCallbacks0 = get_optional_callbacks(AbstractCode, ModName),
+  OptionalCallbacks = gb_sets:from_list(OptionalCallbacks0),
   get_spec_info(AbstractCode, dict:new(), dict:new(),
-		RecordsDict, ModName, "nofile").
+		RecordsDict, ModName, OptionalCallbacks, "nofile").
+
+get_optional_callbacks(Abs, ModName) ->
+  [{ModName, F, A} || {F, A} <- get_optional_callbacks(Abs)].
+
+get_optional_callbacks(Abs) ->
+    L = [O ||
+            {attribute, _, optional_callbacks, O} <- Abs,
+            is_fa_list(O)],
+    lists:append(L).
 
 %% TypeSpec is a list of conditional contracts for a function.
 %% Each contract is of the form {[Argument], Range, [Constraint]} where
@@ -354,14 +385,16 @@ get_spec_info(ModName, AbstractCode, RecordsDict) ->
 %%  - Constraint is of the form {subtype, T1, T2} where T1 and T2
 %%    are erl_types:erl_type()
 
-get_spec_info([{attribute, Ln, Contract, {Id, TypeSpec}}|Left],
-	      SpecDict, CallbackDict, RecordsDict, ModName, File)
+get_spec_info([{attribute, Attr, Contract, {Id, TypeSpec}}|Left],
+	      SpecDict, CallbackDict, RecordsDict, ModName, OptCb, File)
   when ((Contract =:= 'spec') or (Contract =:= 'callback')),
        is_list(TypeSpec) ->
+  Ln = erl_anno:line(Attr),
   MFA = case Id of
 	  {_, _, _} = T -> T;
 	  {F, A} -> {ModName, F, A}
 	end,
+  Xtra = [optional_callback || gb_sets:is_member(MFA, OptCb)],
   ActiveDict =
     case Contract of
       spec     -> SpecDict;
@@ -369,8 +402,9 @@ get_spec_info([{attribute, Ln, Contract, {Id, TypeSpec}}|Left],
     end,
   try dict:find(MFA, ActiveDict) of
     error ->
+      SpecData = {TypeSpec, Xtra},
       NewActiveDict =
-	dialyzer_contracts:store_tmp_contract(MFA, {File, Ln}, TypeSpec,
+	dialyzer_contracts:store_tmp_contract(MFA, {File, Ln}, SpecData,
 					      ActiveDict, RecordsDict),
       {NewSpecDict, NewCallbackDict} =
 	case Contract of
@@ -378,8 +412,8 @@ get_spec_info([{attribute, Ln, Contract, {Id, TypeSpec}}|Left],
 	  callback -> {SpecDict, NewActiveDict}
 	end,
       get_spec_info(Left, NewSpecDict, NewCallbackDict,
-		    RecordsDict, ModName,File);
-    {ok, {{OtherFile, L},_C}} ->
+		    RecordsDict, ModName, OptCb, File);
+    {ok, {{OtherFile, L}, _D}} ->
       {Mod, Fun, Arity} = MFA,
       Msg = flat_format("  Contract/callback for function ~w:~w/~w "
 			"already defined in ~s:~w\n",
@@ -391,15 +425,137 @@ get_spec_info([{attribute, Ln, Contract, {Id, TypeSpec}}|Left],
 			  [Ln, Error])}
   end;
 get_spec_info([{attribute, _, file, {IncludeFile, _}}|Left],
-	      SpecDict, CallbackDict, RecordsDict, ModName, _File) ->
+	      SpecDict, CallbackDict, RecordsDict, ModName, OptCb, _File) ->
   get_spec_info(Left, SpecDict, CallbackDict,
-		RecordsDict, ModName, IncludeFile);
+		RecordsDict, ModName, OptCb, IncludeFile);
 get_spec_info([_Other|Left], SpecDict, CallbackDict,
-	      RecordsDict, ModName, File) ->
-  get_spec_info(Left, SpecDict, CallbackDict, RecordsDict, ModName, File);
-get_spec_info([], SpecDict, CallbackDict, _RecordsDict, _ModName, _File) ->
+	      RecordsDict, ModName, OptCb, File) ->
+  get_spec_info(Left, SpecDict, CallbackDict,
+                RecordsDict, ModName, OptCb, File);
+get_spec_info([], SpecDict, CallbackDict,
+              _RecordsDict, _ModName, _OptCb, _File) ->
   {ok, SpecDict, CallbackDict}.
 
+-spec get_fun_meta_info(module(), abstract_code(), [dial_warn_tag()]) ->
+                           dialyzer_codeserver:fun_meta_info().
+
+get_fun_meta_info(M, Abs, LegalWarnings) ->
+  NoWarn = get_nowarn_unused_function(M, Abs),
+  FuncSupp = get_func_suppressions(M, Abs),
+  Warnings0 = get_options(Abs, LegalWarnings),
+  Warnings = ordsets:to_list(Warnings0),
+  ModuleWarnings = [{M, W} || W <- Warnings],
+  RawProps = lists:append([NoWarn, FuncSupp, ModuleWarnings]),
+  process_options(dialyzer_utils:family(RawProps), Warnings0).
+
+process_options([{M, _}=Mod|Left], Warnings) when is_atom(M) ->
+  [Mod|process_options(Left, Warnings)];
+process_options([{{_M, _F, _A}=MFA, Opts}|Left], Warnings) ->
+  WL = case lists:member(nowarn_function, Opts) of
+         true -> [{nowarn_function, func}]; % takes precedence
+         false ->
+           Ws = dialyzer_options:build_warnings(Opts, Warnings),
+           ModOnly = [{W, mod} || W <- ordsets:subtract(Warnings, Ws)],
+           FunOnly = [{W, func} || W <- ordsets:subtract(Ws, Warnings)],
+           ordsets:union(ModOnly, FunOnly)
+       end,
+  case WL of
+    [] -> process_options(Left, Warnings);
+    _ -> [{MFA, WL}|process_options(Left, Warnings)]
+  end;
+process_options([], _Warnings) -> [].
+
+-spec get_nowarn_unused_function(module(), abstract_code()) ->
+                                    [{mfa(), 'no_unused'}].
+
+get_nowarn_unused_function(M, Abs) ->
+  Opts = get_options_with_tag(compile, Abs),
+  Warn = erl_lint:bool_option(warn_unused_function, nowarn_unused_function,
+                              true, Opts),
+  Functions = [{F, A} || {function, _, F, A, _} <- Abs],
+  AttrFile = collect_attribute(Abs, compile),
+  TagsFaList = check_fa_list(AttrFile, nowarn_unused_function, Functions),
+  FAs = case Warn of
+          false -> Functions;
+          true ->
+            [FA || {{nowarn_unused_function,_L,_File}, FA} <- TagsFaList]
+        end,
+  [{{M, F, A}, no_unused} || {F, A} <- FAs].
+
+-spec get_func_suppressions(module(), abstract_code()) ->
+                            [{mfa(), 'nowarn_function' | dial_warn_tag()}].
+
+get_func_suppressions(M, Abs) ->
+  Functions = [{F, A} || {function, _, F, A, _} <- Abs],
+  AttrFile = collect_attribute(Abs, dialyzer),
+  TagsFAs = check_fa_list(AttrFile, '*', Functions),
+  %% Check the options:
+  Fun = fun({{nowarn_function, _L, _File}, _FA}) -> ok;
+           ({OptLFile, _FA}) ->
+            _ = get_options1([OptLFile], ordsets:new())
+        end,
+  lists:foreach(Fun, TagsFAs),
+  [{{M, F, A}, W} || {{W, _L, _File}, {F, A}} <- TagsFAs].
+
+-spec get_options(abstract_code(), [dial_warn_tag()]) ->
+                     ordsets:ordset(dial_warn_tag()).
+
+get_options(Abs, LegalWarnings) ->
+  AttrFile = collect_attribute(Abs, dialyzer),
+  get_options1(AttrFile, LegalWarnings).
+
+get_options1([{Args, L, File}|Left], Warnings) ->
+  Opts = [O ||
+           O <- lists:flatten([Args]),
+           is_atom(O)],
+  try dialyzer_options:build_warnings(Opts, Warnings) of
+    NewWarnings ->
+      get_options1(Left, NewWarnings)
+  catch
+    throw:{dialyzer_options_error, Msg} ->
+      Msg1 = flat_format("  ~s:~w: ~s", [File, L, Msg]),
+      throw({error, Msg1})
+  end;
+get_options1([], Warnings) ->
+  Warnings.
+
+-type collected_attribute() ::
+        {Args :: term(), erl_anno:line(), file:filename()}.
+
+collect_attribute(Abs, Tag) ->
+  collect_attribute(Abs, Tag, "nofile").
+
+collect_attribute([{attribute, L, Tag, Args}|Left], Tag, File) ->
+  CollAttr = {Args, L, File},
+  [CollAttr | collect_attribute(Left, Tag, File)];
+collect_attribute([{attribute, _, file, {IncludeFile, _}}|Left], Tag, _) ->
+  collect_attribute(Left, Tag, IncludeFile);
+collect_attribute([_Other|Left], Tag, File) ->
+  collect_attribute(Left, Tag, File);
+collect_attribute([], _Tag, _File) -> [].
+
+-spec is_suppressed_fun(mfa(), codeserver()) -> boolean().
+
+is_suppressed_fun(MFA, CodeServer) ->
+  lookup_fun_property(MFA, nowarn_function, CodeServer).
+
+-spec is_suppressed_tag(mfa() | module(), dial_warn_tag(), codeserver()) ->
+                           boolean().
+
+is_suppressed_tag(MorMFA, Tag, Codeserver) ->
+  not lookup_fun_property(MorMFA, Tag, Codeserver).
+
+lookup_fun_property({M, _F, _A}=MFA, Property, CodeServer) ->
+  MFAPropList = dialyzer_codeserver:lookup_meta_info(MFA, CodeServer),
+  case proplists:get_value(Property, MFAPropList, no) of
+    mod -> false; % suppressed in function
+    func -> true; % requested in function
+    no -> lookup_fun_property(M, Property, CodeServer)
+  end;
+lookup_fun_property(M, Property, CodeServer) when is_atom(M) ->
+  MPropList = dialyzer_codeserver:lookup_meta_info(M, CodeServer),
+  proplists:is_defined(Property, MPropList).
+
 %% ============================================================================
 %%
 %% Exported types
@@ -449,7 +605,6 @@ cleanup_compile_options(Opts) ->
 
 %% Using abstract, not asm or core.
 keep_compile_option(from_asm) -> false;
-keep_compile_option(asm) -> false;
 keep_compile_option(from_core) -> false;
 %% The parse transform will already have been applied, may cause
 %% problems if it is re-applied.
@@ -482,6 +637,57 @@ format_sig(Type, RecDict) ->
 flat_format(Fmt, Lst) ->
   lists:flatten(io_lib:format(Fmt, Lst)).
 
+-spec get_options_with_tag(atom(), abstract_code()) -> [term()].
+
+get_options_with_tag(Tag, Abs) ->
+  lists:flatten([O || {attribute, _, Tag0, O} <- Abs, Tag =:= Tag0]).
+
+%% Check F/A, and collect (unchecked) warning tags with line and file.
+-spec check_fa_list([collected_attribute()], atom(), [fa()]) ->
+                       [{{atom(), erl_anno:line(), file:filename()},fa()}].
+
+check_fa_list(AttrFile, Tag, Functions) ->
+  FuncTab = gb_sets:from_list(Functions),
+  check_fa_list1(AttrFile, Tag, FuncTab).
+
+check_fa_list1([{Args, L, File}|Left], Tag, Funcs) ->
+  TermsL = [{{Tag0, L, File}, Term} ||
+             {Tags, Terms0} <- lists:flatten([Args]),
+             Tag0 <- lists:flatten([Tags]),
+             Tag =:= '*' orelse Tag =:= Tag0,
+             Term <- lists:flatten([Terms0])],
+  case lists:dropwhile(fun({_, T}) -> is_fa(T) end, TermsL) of
+    [] -> ok;
+    [{_, Bad}|_] ->
+      Msg1 = flat_format("  Bad function ~w in line ~s:~w",
+                         [Bad, File, L]),
+      throw({error, Msg1})
+  end,
+  case lists:dropwhile(fun({_, FA}) -> is_known(FA, Funcs) end, TermsL) of
+    [] -> ok;
+    [{_, {F, A}}|_] ->
+      Msg2 = flat_format("  Unknown function ~w/~w in line ~s:~w",
+                         [F, A, File, L]),
+      throw({error, Msg2})
+  end,
+  TermsL ++ check_fa_list1(Left, Tag, Funcs);
+check_fa_list1([], _Tag, _Funcs) -> [].
+
+is_known(FA, Funcs) ->
+  gb_sets:is_element(FA, Funcs).
+
+-spec is_fa_list(term()) -> boolean().
+
+is_fa_list([E|L]) -> is_fa(E) andalso is_fa_list(L);
+is_fa_list([]) -> true;
+is_fa_list(_) -> false.
+
+-spec is_fa(term()) -> boolean().
+
+is_fa({FuncName, Arity})
+  when is_atom(FuncName), is_integer(Arity), Arity >= 0 -> true;
+is_fa(_) -> false.
+
 %%-------------------------------------------------------------------
 %% Author      : Per Gustafsson <[email protected]>
 %% Description : Provides better printing of binaries.
@@ -586,3 +792,8 @@ parallelism() ->
   CPUs = erlang:system_info(logical_processors_available),
   Schedulers = erlang:system_info(schedulers),
   min(CPUs, Schedulers).
+
+-spec family([{K,V}]) -> [{K,[V]}].
+
+family(L) ->
+    sofs:to_external(sofs:rel2fam(sofs:relation(L))).
diff --git a/lib/dialyzer/test/behaviour_SUITE_data/results/supervisor_incorrect_return b/lib/dialyzer/test/behaviour_SUITE_data/results/supervisor_incorrect_return
index e89caf3cf7..4103a2d8b4 100644
--- a/lib/dialyzer/test/behaviour_SUITE_data/results/supervisor_incorrect_return
+++ b/lib/dialyzer/test/behaviour_SUITE_data/results/supervisor_incorrect_return
@@ -1,2 +1,2 @@
 
-supervisor_incorrect_return.erl:14: The inferred return type of init/1 ({'ok',{{'one_against_one',0,1},[{_,_,_,_,_,_},...]}}) has nothing in common with 'ignore' | {'ok',{{'one_for_all',non_neg_integer(),non_neg_integer()} | {'one_for_one',non_neg_integer(),non_neg_integer()} | {'rest_for_one',non_neg_integer(),non_neg_integer()} | {'simple_one_for_one',non_neg_integer(),non_neg_integer()},[{_,{atom() | tuple(),atom(),'undefined' | [any()]},'permanent' | 'temporary' | 'transient','brutal_kill' | 'infinity' | non_neg_integer(),'supervisor' | 'worker','dynamic' | [atom() | tuple()]}]}}, which is the expected return type for the callback of supervisor behaviour
+supervisor_incorrect_return.erl:14: The inferred return type of init/1 ({'ok',{{'one_against_one',0,1},[{_,_,_,_,_,_},...]}}) has nothing in common with 'ignore' | {'ok',{{'one_for_all',non_neg_integer(),pos_integer()} | {'one_for_one',non_neg_integer(),pos_integer()} | {'rest_for_one',non_neg_integer(),pos_integer()} | {'simple_one_for_one',non_neg_integer(),pos_integer()} | #{},[{_,{atom() | tuple(),atom(),'undefined' | [any()]},'permanent' | 'temporary' | 'transient','brutal_kill' | 'infinity' | non_neg_integer(),'supervisor' | 'worker','dynamic' | [atom() | tuple()]} | #{}]}}, which is the expected return type for the callback of supervisor behaviour
diff --git a/lib/dialyzer/test/behaviour_SUITE_data/src/custom_sup.erl b/lib/dialyzer/test/behaviour_SUITE_data/src/custom_sup.erl
index 76da1fda70..401ee88eab 100644
--- a/lib/dialyzer/test/behaviour_SUITE_data/src/custom_sup.erl
+++ b/lib/dialyzer/test/behaviour_SUITE_data/src/custom_sup.erl
@@ -13,7 +13,7 @@
 -export([init/1]).
 
 -spec init(atom()) ->
-	{ok, {{supervisor:strategy(), non_neg_integer(), non_neg_integer()},
+	{ok, {{supervisor:strategy(), non_neg_integer(), pos_integer()},
 	      [supervisor:child_spec()]}} | ignore.
 
 init(StorageName) ->
diff --git a/lib/dialyzer/test/dialyzer_SUITE.erl b/lib/dialyzer/test/dialyzer_SUITE.erl
index 8507525597..f625d12b45 100644
--- a/lib/dialyzer/test/dialyzer_SUITE.erl
+++ b/lib/dialyzer/test/dialyzer_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2014. All Rights Reserved.
+%% Copyright Ericsson AB 2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -30,12 +30,12 @@
 -export([init_per_testcase/2, end_per_testcase/2]).
 
 %% Test cases must be exported.
--export([app_test/1, appup_test/1, beam_tests/1]).
+-export([app_test/1, appup_test/1]).
 
 suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() ->
-    [app_test, appup_test, beam_tests].
+    [app_test, appup_test].
 
 groups() ->
     [].
@@ -75,38 +75,3 @@ app_test(Config) when is_list(Config) ->
 %% Test that the .appup file does not contain any `basic' errors
 appup_test(Config) when is_list(Config) ->
     ok = ?t:appup_test(dialyzer).
-
-beam_tests(Config) when is_list(Config) ->
-    Prog = <<"
-              -module(no_auto_import).
-
-              %% Copied from erl_lint_SUITE.erl, clash6
-
-              -export([size/1]).
-
-              size([]) ->
-                  0;
-              size({N,_}) ->
-                  N;
-              size([_|T]) ->
-                  1+size(T).
-             ">>,
-    Opts = [no_auto_import],
-    {ok, BeamFile} = compile(Config, Prog, no_auto_import, Opts),
-    [] = run_dialyzer([BeamFile]),
-    ok.
-
-compile(Config, Prog, Module, CompileOpts) ->
-    Source = lists:concat([Module, ".erl"]),
-    PrivDir = ?config(priv_dir,Config),
-    Filename = filename:join([PrivDir, Source]),
-    ok = file:write_file(Filename, Prog),
-    Opts = [{outdir, PrivDir}, debug_info | CompileOpts],
-    {ok, Module} = compile:file(Filename, Opts),
-    {ok, filename:join([PrivDir, lists:concat([Module, ".beam"])])}.
-
-run_dialyzer(Files) ->
-    dialyzer:run([{analysis_type, plt_build},
-                  {files, Files},
-                  {from, byte_code},
-                  {check_plt, false}]).
diff --git a/lib/dialyzer/test/opaque_SUITE_data/dialyzer_options b/lib/dialyzer/test/opaque_SUITE_data/dialyzer_options
index 44a65f6e90..3ff26b87db 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/dialyzer_options
+++ b/lib/dialyzer/test/opaque_SUITE_data/dialyzer_options
@@ -1 +1 @@
-{dialyzer_options, [{warnings, [no_unused, no_return, no_unknown]}]}.
+{dialyzer_options, [{warnings, [no_unused, no_return]}]}.
diff --git a/lib/dialyzer/test/options1_SUITE_data/dialyzer_options b/lib/dialyzer/test/options1_SUITE_data/dialyzer_options
index 65d233ac0d..c612e77d3e 100644
--- a/lib/dialyzer/test/options1_SUITE_data/dialyzer_options
+++ b/lib/dialyzer/test/options1_SUITE_data/dialyzer_options
@@ -1,2 +1,2 @@
-{dialyzer_options, [{include_dirs, ["my_include"]}, {defines, [{'COMPILER_VSN', 42}]}, {warnings, [no_improper_lists, no_unknown]}]}.
+{dialyzer_options, [{include_dirs, ["my_include"]}, {defines, [{'COMPILER_VSN', 42}]}, {warnings, [no_improper_lists]}]}.
 {time_limit, 30}.
diff --git a/lib/dialyzer/test/plt_SUITE.erl b/lib/dialyzer/test/plt_SUITE.erl
index aee9f449a6..ecbac14e5d 100644
--- a/lib/dialyzer/test/plt_SUITE.erl
+++ b/lib/dialyzer/test/plt_SUITE.erl
@@ -1,17 +1,18 @@
 %% This suite is the only hand made and simply
-%% checks if we can build a plt.
+%% checks if we can build and update a plt.
 
 -module(plt_SUITE).
 
 -include_lib("common_test/include/ct.hrl").
 -include("dialyzer_test_constants.hrl").
 
--export([suite/0, all/0, build_plt/1]).
+-export([suite/0, all/0, build_plt/1, beam_tests/1, update_plt/1,
+         run_plt_check/1, run_succ_typings/1]).
 
 suite() ->
   [{timetrap, ?plt_timeout}].
 
-all() -> [build_plt].
+all() -> [build_plt, beam_tests, update_plt, run_plt_check, run_succ_typings].
 
 build_plt(Config) ->
   OutDir = ?config(priv_dir, Config),
@@ -19,3 +20,155 @@ build_plt(Config) ->
     ok   -> ok;
     fail -> ct:fail(plt_build_fail)
   end.
+
+beam_tests(Config) when is_list(Config) ->
+    Prog = <<"
+              -module(no_auto_import).
+
+              %% Copied from erl_lint_SUITE.erl, clash6
+
+              -export([size/1]).
+
+              size([]) ->
+                  0;
+              size({N,_}) ->
+                  N;
+              size([_|T]) ->
+                  1+size(T).
+             ">>,
+    Opts = [no_auto_import],
+    {ok, BeamFile} = compile(Config, Prog, no_auto_import, Opts),
+    [] = run_dialyzer(plt_build, [BeamFile], []),
+    ok.
+
+run_plt_check(Config) when is_list(Config) ->
+    Mod1 = <<"
+	      -module(run_plt_check1).
+	     ">>,
+
+    Mod2A = <<"
+	       -module(run_plt_check2).
+	      ">>,
+
+    {ok, BeamFile1} = compile(Config, Mod1, run_plt_check1, []),
+    {ok, BeamFile2} = compile(Config, Mod2A, run_plt_check2, []),
+    [] = run_dialyzer(plt_build, [BeamFile1, BeamFile2], []),
+
+    Mod2B = <<"
+	       -module(run_plt_check2).
+
+	       -export([call/1]).
+
+	       call(X) -> run_plt_check1:call(X).
+	     ">>,
+
+    {ok, BeamFile2} = compile(Config, Mod2B, run_plt_check2, []),
+
+    % callgraph warning as run_plt_check2:call/1 makes a call to unexported
+    % function run_plt_check1:call/1.
+    [_] = run_dialyzer(plt_check, [], []),
+
+    ok.
+
+run_succ_typings(Config) when is_list(Config) ->
+    Mod1A = <<"
+	       -module(run_succ_typings1).
+
+	       -export([call/0]).
+
+	       call() -> a.
+	      ">>,
+
+    {ok, BeamFile1} = compile(Config, Mod1A, run_succ_typings1, []),
+    [] = run_dialyzer(plt_build, [BeamFile1], []),
+
+    Mod1B = <<"
+	       -module(run_succ_typings1).
+
+	       -export([call/0]).
+
+	       call() -> b.
+	     ">>,
+
+    Mod2 = <<"
+	      -module(run_succ_typings2).
+
+	      -export([call/0]).
+
+	      -spec call() -> b.
+	      call() -> run_succ_typings1:call().
+	     ">>,
+
+    {ok, BeamFile1} = compile(Config, Mod1B, run_succ_typings1, []),
+    {ok, BeamFile2} = compile(Config, Mod2, run_succ_typings2, []),
+    % contract types warning as run_succ_typings2:call/0 makes a call to
+    % run_succ_typings1:call/0, which returns a (not b) in the PLT.
+    [_] = run_dialyzer(succ_typings, [BeamFile2], [{check_plt, false}]),
+    % warning not returned as run_succ_typings1 is updated in the PLT.
+    [] = run_dialyzer(succ_typings, [BeamFile2], [{check_plt, true}]),
+
+    ok.
+
+%%% [James Fish:]
+%%% If a function is removed from a module and the module has previously
+%%% been added to a PLT, the function will not be removed from PLT when
+%%% the PLT is checked. This results in dialyzer failing to produce a
+%%% callgraph warning when doing success typings analysis if the remove
+%%% function is still called in another module
+%%% As the function is not removed from the PLT a prior warning, such as a
+%%% contract types warning, might be emitted when the removed function
+%%% nolonger exists.
+update_plt(Config) ->
+    PrivDir = ?config(priv_dir, Config),
+    Prog1 = <<"-module(plt_gc).
+               -export([one/0]).
+               one() ->
+                  one.">>,
+    {ok, Beam} = compile(Config, Prog1, plt_gc, []),
+
+    ErlangBeam = case code:where_is_file("erlang.beam") of
+                     non_existing ->
+                         filename:join([code:root_dir(),
+                                        "erts", "preloaded", "ebin",
+                                        "erlang.beam"]);
+                     EBeam ->
+                         EBeam
+                 end,
+    Plt = filename:join(PrivDir, "plt_gc.plt"),
+    Opts = [{check_plt, true}, {from, byte_code}],
+    [] = dialyzer:run([{analysis_type, plt_build},
+                       {files, [Beam, ErlangBeam]},
+                       {output_plt, Plt}] ++ Opts),
+
+    Prog2 = <<"-module(plt_gc).
+               -export([two/0]).
+               two() ->
+                  two.">>,
+    {ok, Beam} = compile(Config, Prog2, plt_gc, []),
+
+    Test = <<"-module(test).
+              -export([test/0]).
+              -spec test() -> test.
+              test() ->
+                  plt_gc:one().">>,
+    {ok, TestBeam} = compile(Config, Test, test, []),
+    [{warn_callgraph, _, {call_to_missing, [plt_gc, one, 0]}}] =
+        dialyzer:run([{analysis_type, succ_typings},
+                      {files, [TestBeam]},
+                      {init_plt, Plt}] ++ Opts),
+    ok.
+
+compile(Config, Prog, Module, CompileOpts) ->
+    Source = lists:concat([Module, ".erl"]),
+    PrivDir = ?config(priv_dir,Config),
+    Filename = filename:join([PrivDir, Source]),
+    ok = file:write_file(Filename, Prog),
+    Opts = [{outdir, PrivDir}, debug_info | CompileOpts],
+    {ok, Module} = compile:file(Filename, Opts),
+    {ok, filename:join([PrivDir, lists:concat([Module, ".beam"])])}.
+
+run_dialyzer(Analysis, Files, Opts) ->
+    dialyzer:run([{analysis_type, Analysis},
+		  {files, Files},
+		  {from, byte_code} |
+		  Opts]).
diff --git a/lib/dialyzer/test/r9c_SUITE_data/dialyzer_options b/lib/dialyzer/test/r9c_SUITE_data/dialyzer_options
index ba0e6b1ad7..e00e23bb66 100644
--- a/lib/dialyzer/test/r9c_SUITE_data/dialyzer_options
+++ b/lib/dialyzer/test/r9c_SUITE_data/dialyzer_options
@@ -1,2 +1,2 @@
-{dialyzer_options, [{defines, [{vsn, 42}]}, {warnings, [no_unknown]}]}.
+{dialyzer_options, [{defines, [{vsn, 42}]}]}.
 {time_limit, 20}.
diff --git a/lib/dialyzer/test/race_SUITE_data/dialyzer_options b/lib/dialyzer/test/race_SUITE_data/dialyzer_options
index 6992fc6c40..44e1720715 100644
--- a/lib/dialyzer/test/race_SUITE_data/dialyzer_options
+++ b/lib/dialyzer/test/race_SUITE_data/dialyzer_options
@@ -1 +1 @@
-{dialyzer_options, [{warnings, [race_conditions, no_unknown]}]}.
+{dialyzer_options, [{warnings, [race_conditions]}]}.
diff --git a/lib/dialyzer/test/race_SUITE_data/src/ets_insert_args1_suppressed.erl b/lib/dialyzer/test/race_SUITE_data/src/ets_insert_args1_suppressed.erl
new file mode 100644
index 0000000000..5134cc6f0b
--- /dev/null
+++ b/lib/dialyzer/test/race_SUITE_data/src/ets_insert_args1_suppressed.erl
@@ -0,0 +1,19 @@
+%% This tests the presence of possible races due to an ets:lookup/ets:insert
+%% combination. It takes into account the argument types of the calls.
+
+-module(ets_insert_args1_suppressed).
+-export([start/0]).
+
+-dialyzer({nowarn_function,start/0}).
+
+start() ->
+  F = fun(T) -> [{_, N}] = ets:lookup(T, counter),
+               ets:insert(T, [{counter, N+1}])
+      end,
+  io:format("Created ~w\n", [ets:new(foo, [named_table, public])]),
+  ets:insert(foo, {counter, 0}),
+  io:format("Inserted ~w\n", [{counter, 0}]),
+  F(foo),
+  io:format("Update complete\n", []),
+  ObjectList = ets:lookup(foo, counter),
+  io:format("Counter: ~w\n", [ObjectList]).
diff --git a/lib/dialyzer/test/small_SUITE_data/dialyzer_options b/lib/dialyzer/test/small_SUITE_data/dialyzer_options
index 0d91699e4d..50991c9bc5 100644
--- a/lib/dialyzer/test/small_SUITE_data/dialyzer_options
+++ b/lib/dialyzer/test/small_SUITE_data/dialyzer_options
@@ -1 +1 @@
-{dialyzer_options, [{warnings, [no_unknown]}]}.
+{dialyzer_options, []}.
diff --git a/lib/dialyzer/test/small_SUITE_data/results/behaviour_info b/lib/dialyzer/test/small_SUITE_data/results/behaviour_info
new file mode 100644
index 0000000000..2da4d26acb
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/results/behaviour_info
@@ -0,0 +1,2 @@
+
+with_bad_format_status.erl:12: The inferred type for the 1st argument of format_status/2 ('bad_arg') is not a supertype of 'normal' | 'terminate', which is expected type for this argument in the callback of the gen_server behaviour
diff --git a/lib/dialyzer/test/small_SUITE_data/results/blame_contract_range_suppressed b/lib/dialyzer/test/small_SUITE_data/results/blame_contract_range_suppressed
new file mode 100644
index 0000000000..40733434f6
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/results/blame_contract_range_suppressed
@@ -0,0 +1,2 @@
+
+blame_contract_range_suppressed.erl:8: Function foo/0 has no local return
diff --git a/lib/dialyzer/test/small_SUITE_data/results/contracts_with_subtypes b/lib/dialyzer/test/small_SUITE_data/results/contracts_with_subtypes
index fbdd182358..a9fbfb6068 100644
--- a/lib/dialyzer/test/small_SUITE_data/results/contracts_with_subtypes
+++ b/lib/dialyzer/test/small_SUITE_data/results/contracts_with_subtypes
@@ -6,23 +6,27 @@ contracts_with_subtypes.erl:135: The call contracts_with_subtypes:rec2({'a','b'}
 contracts_with_subtypes.erl:136: The call contracts_with_subtypes:rec2({'b','a'}) breaks the contract (Arg) -> 'ok' when is_subtype(Arg,ab())
 contracts_with_subtypes.erl:137: The call contracts_with_subtypes:rec2({'a',{'b','a'}}) breaks the contract (Arg) -> 'ok' when is_subtype(Arg,ab())
 contracts_with_subtypes.erl:138: The call contracts_with_subtypes:rec2({'b',{'a','b'}}) breaks the contract (Arg) -> 'ok' when is_subtype(Arg,ab())
-contracts_with_subtypes.erl:171: The pattern 1 can never match the type string()
-contracts_with_subtypes.erl:174: The pattern 'alpha' can never match the type {'ok',_} | {'ok',_,string()}
-contracts_with_subtypes.erl:176: The pattern 42 can never match the type {'ok',_} | {'ok',_,string()}
-contracts_with_subtypes.erl:192: The pattern 'alpha' can never match the type {'ok',_}
-contracts_with_subtypes.erl:194: The pattern 42 can never match the type {'ok',_}
-contracts_with_subtypes.erl:212: The pattern 'alpha' can never match the type {'ok',_}
-contracts_with_subtypes.erl:214: The pattern 42 can never match the type {'ok',_}
-contracts_with_subtypes.erl:231: The pattern 1 can never match the type string()
-contracts_with_subtypes.erl:234: The pattern {'ok', _} can never match the type {'ok',_,string()}
-contracts_with_subtypes.erl:235: The pattern 'alpha' can never match the type {'ok',_,string()}
-contracts_with_subtypes.erl:236: The pattern {'ok', 42} can never match the type {'ok',_,string()}
-contracts_with_subtypes.erl:237: The pattern 42 can never match the type {'ok',_,string()}
+contracts_with_subtypes.erl:139: The call contracts_with_subtypes:rec2({'a',{'b',{'a','b'}}}) breaks the contract (Arg) -> 'ok' when is_subtype(Arg,ab())
+contracts_with_subtypes.erl:140: The call contracts_with_subtypes:rec2({'b',{'a',{'b','a'}}}) breaks the contract (Arg) -> 'ok' when is_subtype(Arg,ab())
+contracts_with_subtypes.erl:141: The call contracts_with_subtypes:rec2({'a',{'b',{'a',{'b','a'}}}}) breaks the contract (Arg) -> 'ok' when is_subtype(Arg,ab())
+contracts_with_subtypes.erl:142: The call contracts_with_subtypes:rec2({'b',{'a',{'b',{'a','b'}}}}) breaks the contract (Arg) -> 'ok' when is_subtype(Arg,ab())
+contracts_with_subtypes.erl:175: The pattern 1 can never match the type string()
+contracts_with_subtypes.erl:178: The pattern 'alpha' can never match the type {'ok',_} | {'ok',_,string()}
+contracts_with_subtypes.erl:180: The pattern 42 can never match the type {'ok',_} | {'ok',_,string()}
+contracts_with_subtypes.erl:196: The pattern 'alpha' can never match the type {'ok',_}
+contracts_with_subtypes.erl:198: The pattern 42 can never match the type {'ok',_}
+contracts_with_subtypes.erl:216: The pattern 'alpha' can never match the type {'ok',_}
+contracts_with_subtypes.erl:218: The pattern 42 can never match the type {'ok',_}
+contracts_with_subtypes.erl:235: The pattern 1 can never match the type string()
+contracts_with_subtypes.erl:238: The pattern {'ok', _} can never match the type {'ok',_,string()}
+contracts_with_subtypes.erl:239: The pattern 'alpha' can never match the type {'ok',_,string()}
 contracts_with_subtypes.erl:23: Invalid type specification for function contracts_with_subtypes:extract2/0. The success typing is () -> 'something'
-contracts_with_subtypes.erl:263: Function flat_ets_new_t/0 has no local return
-contracts_with_subtypes.erl:264: The call contracts_with_subtypes:flat_ets_new(12,[]) breaks the contract (Name,Options) -> atom() when is_subtype(Name,atom()), is_subtype(Options,[Option]), is_subtype(Option,'set' | 'ordered_set' | 'bag' | 'duplicate_bag' | 'public' | 'protected' | 'private' | 'named_table' | {'keypos',integer()} | {'heir',pid(),term()} | {'heir','none'} | {'write_concurrency',boolean()} | {'read_concurrency',boolean()} | 'compressed')
-contracts_with_subtypes.erl:290: Function factored_ets_new_t/0 has no local return
-contracts_with_subtypes.erl:291: The call contracts_with_subtypes:factored_ets_new(12,[]) breaks the contract (Name,Options) -> atom() when is_subtype(Name,atom()), is_subtype(Options,[Option]), is_subtype(Option,Type | Access | 'named_table' | {'keypos',Pos} | {'heir',Pid::pid(),HeirData} | {'heir','none'} | Tweaks), is_subtype(Type,type()), is_subtype(Access,access()), is_subtype(Tweaks,{'write_concurrency',boolean()} | {'read_concurrency',boolean()} | 'compressed'), is_subtype(Pos,pos_integer()), is_subtype(HeirData,term())
+contracts_with_subtypes.erl:240: The pattern {'ok', 42} can never match the type {'ok',_,string()}
+contracts_with_subtypes.erl:241: The pattern 42 can never match the type {'ok',_,string()}
+contracts_with_subtypes.erl:267: Function flat_ets_new_t/0 has no local return
+contracts_with_subtypes.erl:268: The call contracts_with_subtypes:flat_ets_new(12,[]) breaks the contract (Name,Options) -> atom() when is_subtype(Name,atom()), is_subtype(Options,[Option]), is_subtype(Option,'set' | 'ordered_set' | 'bag' | 'duplicate_bag' | 'public' | 'protected' | 'private' | 'named_table' | {'keypos',integer()} | {'heir',pid(),term()} | {'heir','none'} | {'write_concurrency',boolean()} | {'read_concurrency',boolean()} | 'compressed')
+contracts_with_subtypes.erl:294: Function factored_ets_new_t/0 has no local return
+contracts_with_subtypes.erl:295: The call contracts_with_subtypes:factored_ets_new(12,[]) breaks the contract (Name,Options) -> atom() when is_subtype(Name,atom()), is_subtype(Options,[Option]), is_subtype(Option,Type | Access | 'named_table' | {'keypos',Pos} | {'heir',Pid::pid(),HeirData} | {'heir','none'} | Tweaks), is_subtype(Type,type()), is_subtype(Access,access()), is_subtype(Tweaks,{'write_concurrency',boolean()} | {'read_concurrency',boolean()} | 'compressed'), is_subtype(Pos,pos_integer()), is_subtype(HeirData,term())
 contracts_with_subtypes.erl:77: The call contracts_with_subtypes:foo1(5) breaks the contract (Arg1) -> Res when is_subtype(Arg1,atom()), is_subtype(Res,atom())
 contracts_with_subtypes.erl:78: The call contracts_with_subtypes:foo2(5) breaks the contract (Arg1) -> Res when is_subtype(Arg1,Arg2), is_subtype(Arg2,atom()), is_subtype(Res,atom())
 contracts_with_subtypes.erl:79: The call contracts_with_subtypes:foo3(5) breaks the contract (Arg1) -> Res when is_subtype(Arg2,atom()), is_subtype(Arg1,Arg2), is_subtype(Res,atom())
diff --git a/lib/dialyzer/test/small_SUITE_data/results/maps_sum b/lib/dialyzer/test/small_SUITE_data/results/maps_sum
new file mode 100644
index 0000000000..a19c0bba96
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/results/maps_sum
@@ -0,0 +1,4 @@
+
+maps_sum.erl:15: Invalid type specification for function maps_sum:wrong1/1. The success typing is (#{}) -> any()
+maps_sum.erl:26: Function wrong2/1 has no local return
+maps_sum.erl:27: The call lists:foldl(fun((_,_,_) -> any()),0,Data::any()) will never return since it differs in the 1st argument from the success typing arguments: (fun((_,_) -> any()),any(),[any()])
diff --git a/lib/dialyzer/test/small_SUITE_data/results/request1 b/lib/dialyzer/test/small_SUITE_data/results/request1
new file mode 100644
index 0000000000..0cf4017403
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/results/request1
@@ -0,0 +1,2 @@
+
+request1.erl:8: Expression produces a value of type {'a','b'}, but this value is unmatched
diff --git a/lib/dialyzer/test/small_SUITE_data/results/suppress_request b/lib/dialyzer/test/small_SUITE_data/results/suppress_request
new file mode 100644
index 0000000000..18e82b7972
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/results/suppress_request
@@ -0,0 +1,6 @@
+
+suppress_request.erl:21: Expression produces a value of type {'a','b'}, but this value is unmatched
+suppress_request.erl:25: Expression produces a value of type {'a','b'}, but this value is unmatched
+suppress_request.erl:35: Function test3_b/0 has no local return
+suppress_request.erl:39: Guard test 2 =:= A::fun((none()) -> no_return()) can never succeed
+suppress_request.erl:7: Type specification suppress_request:test1('a' | 'b') -> 'ok' is a subtype of the success typing: suppress_request:test1('a' | 'b' | 'c') -> 'ok'
diff --git a/lib/dialyzer/test/small_SUITE_data/src/behaviour_info/with_bad_format_status.erl b/lib/dialyzer/test/small_SUITE_data/src/behaviour_info/with_bad_format_status.erl
new file mode 100644
index 0000000000..24591e08fa
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/src/behaviour_info/with_bad_format_status.erl
@@ -0,0 +1,12 @@
+-module(with_bad_format_status).
+
+-behaviour(gen_server).
+-export([handle_call/3,handle_cast/2,handle_info/2,
+         code_change/3, init/1, terminate/2, format_status/2]).
+handle_call(_, _, S) -> {noreply, S}.
+handle_cast(_, S) -> {noreply, S}.
+handle_info(_, S) -> {noreply, S}.
+code_change(_, _, _) -> {error, not_implemented}.
+init(_) -> {ok, state}.
+terminate(_, _) -> ok.
+format_status(bad_arg, _) -> ok. % optional callback
diff --git a/lib/dialyzer/test/small_SUITE_data/src/behaviour_info/with_format_status.erl b/lib/dialyzer/test/small_SUITE_data/src/behaviour_info/with_format_status.erl
new file mode 100644
index 0000000000..a56ff63d1d
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/src/behaviour_info/with_format_status.erl
@@ -0,0 +1,13 @@
+-module(with_format_status).
+
+-behaviour(gen_server).
+-export([handle_call/3,handle_cast/2,handle_info/2,
+         code_change/3, init/1, terminate/2, format_status/2]).
+-export([handle_call/3,handle_cast/2,handle_info/2]).
+handle_call(_, _, S) -> {noreply, S}.
+handle_cast(_, S) -> {noreply, S}.
+handle_info(_, S) -> {noreply, S}.
+code_change(_, _, _) -> {error, not_implemented}.
+init(_) -> {ok, state}.
+terminate(_, _) -> ok.
+format_status(normal, _) -> ok. % optional callback
diff --git a/lib/dialyzer/test/small_SUITE_data/src/big_external_type.erl b/lib/dialyzer/test/small_SUITE_data/src/big_external_type.erl
new file mode 100644
index 0000000000..91a157b17f
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/src/big_external_type.erl
@@ -0,0 +1,528 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2001-2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+%%% A stripped version of erl_parse.yrl.
+%%%
+%%% A type for the abstract format with *external* types has been added.
+%%% The type of the abstract format is not up-to-date, but it does not
+%%% matter since the purpose of the type is to stress the conversion
+%%% of type forms to erl_type().
+
+-module(big_external_type).
+
+-export([parse_form/1,parse_exprs/1,parse_term/1]).
+-export([normalise/1,tokens/1,tokens/2]).
+-export([inop_prec/1,preop_prec/1,func_prec/0,max_prec/0]).
+
+-export_type([abstract_clause/0, abstract_expr/0, abstract_form/0,
+              error_info/0]).
+
+%% Start of Abstract Format
+
+-type line() :: erl_scan:line().
+
+-export_type([af_record_index/0, af_record_field/1, af_record_name/0,
+              af_field_name/0, af_function_decl/0]).
+
+-export_type([af_module/0, af_export/0, af_import/0, af_fa_list/0,
+              af_compile/0, af_file/0, af_record_decl/0,
+              af_field_decl/0, af_wild_attribute/0,
+              af_record_update/1, af_catch/0, af_local_call/0,
+              af_remote_call/0, af_args/0, af_local_function/0,
+              af_remote_function/0, af_list_comprehension/0,
+              af_binary_comprehension/0, af_template/0,
+              af_qualifier_seq/0, af_qualifier/0, af_generator/0,
+              af_filter/0, af_block/0, af_if/0, af_case/0, af_try/0,
+              af_clause_seq/0, af_catch_clause_seq/0, af_receive/0,
+              af_local_fun/0, af_remote_fun/0, af_fun/0, af_query/0,
+              af_query_access/0, af_clause/0,
+              af_catch_clause/0, af_catch_pattern/0, af_catch_class/0,
+              af_body/0, af_guard_seq/0, af_guard/0, af_guard_test/0,
+              af_record_access/1, af_guard_call/0,
+              af_remote_guard_call/0, af_pattern/0, af_literal/0,
+              af_atom/0, af_lit_atom/1, af_integer/0, af_float/0,
+              af_string/0, af_match/1, af_variable/0,
+              af_anon_variable/0, af_tuple/1, af_nil/0, af_cons/1,
+              af_bin/1, af_binelement/1, af_binelement_size/0,
+              af_binary_op/1, af_binop/0, af_unary_op/1, af_unop/0]).
+
+-type abstract_form() :: ?MODULE:af_module()
+                       | ?MODULE:af_export()
+                       | ?MODULE:af_import()
+                       | ?MODULE:af_compile()
+                       | ?MODULE:af_file()
+                       | ?MODULE:af_record_decl()
+                       | ?MODULE:af_wild_attribute()
+                       | ?MODULE:af_function_decl().
+
+-type af_module() :: {attribute, line(), module, module()}.
+
+-type af_export() :: {attribute, line(), export, ?MODULE:af_fa_list()}.
+
+-type af_import() :: {attribute, line(), import, ?MODULE:af_fa_list()}.
+
+-type af_fa_list() :: [{function(), arity()}].
+
+-type af_compile() :: {attribute, line(), compile, any()}.
+
+-type af_file() :: {attribute, line(), file, {string(), line()}}.
+
+-type af_record_decl() ::
+        {attribute, line(), record, ?MODULE:af_record_name(), [?MODULE:af_field_decl()]}.
+
+-type af_field_decl() :: {record_field, line(), ?MODULE:af_atom()}
+                       | {record_field, line(), ?MODULE:af_atom(), ?MODULE:abstract_expr()}.
+
+%% Types and specs, among other things...
+-type af_wild_attribute() :: {attribute, line(), ?MODULE:af_atom(), any()}.
+
+-type af_function_decl() ::
+        {function, line(), function(), arity(), ?MODULE:af_clause_seq()}.
+
+-type abstract_expr() :: ?MODULE:af_literal()
+                       | ?MODULE:af_match(?MODULE:abstract_expr())
+                       | ?MODULE:af_variable()
+                       | ?MODULE:af_tuple(?MODULE:abstract_expr())
+                       | ?MODULE:af_nil()
+                       | ?MODULE:af_cons(?MODULE:abstract_expr())
+                       | ?MODULE:af_bin(?MODULE:abstract_expr())
+                       | ?MODULE:af_binary_op(?MODULE:abstract_expr())
+                       | ?MODULE:af_unary_op(?MODULE:abstract_expr())
+                       | ?MODULE:af_record_access(?MODULE:abstract_expr())
+                       | ?MODULE:af_record_update(?MODULE:abstract_expr())
+                       | ?MODULE:af_record_index()
+                       | ?MODULE:af_record_field(?MODULE:abstract_expr())
+                       | ?MODULE:af_catch()
+                       | ?MODULE:af_local_call()
+                       | ?MODULE:af_remote_call()
+                       | ?MODULE:af_list_comprehension()
+                       | ?MODULE:af_binary_comprehension()
+                       | ?MODULE:af_block()
+                       | ?MODULE:af_if()
+                       | ?MODULE:af_case()
+                       | ?MODULE:af_try()
+                       | ?MODULE:af_receive()
+                       | ?MODULE:af_local_fun()
+                       | ?MODULE:af_remote_fun()
+                       | ?MODULE:af_fun()
+                       | ?MODULE:af_query()
+                       | ?MODULE:af_query_access().
+
+-type af_record_update(T) :: {record,
+                              line(),
+                              ?MODULE:abstract_expr(),
+                              ?MODULE:af_record_name(),
+                              [?MODULE:af_record_field(T)]}.
+
+-type af_catch() :: {'catch', line(), ?MODULE:abstract_expr()}.
+
+-type af_local_call() :: {call, line(), ?MODULE:af_local_function(), ?MODULE:af_args()}.
+
+-type af_remote_call() :: {call, line(), ?MODULE:af_remote_function(), ?MODULE:af_args()}.
+
+-type af_args() :: [?MODULE:abstract_expr()].
+
+-type af_local_function() :: ?MODULE:abstract_expr().
+
+-type af_remote_function() ::
+        {remote, line(), ?MODULE:abstract_expr(), ?MODULE:abstract_expr()}.
+
+-type af_list_comprehension() ::
+        {lc, line(), ?MODULE:af_template(), ?MODULE:af_qualifier_seq()}.
+
+-type af_binary_comprehension() ::
+        {bc, line(), ?MODULE:af_template(), ?MODULE:af_qualifier_seq()}.
+
+-type af_template() :: ?MODULE:abstract_expr().
+
+-type af_qualifier_seq() :: [?MODULE:af_qualifier()].
+
+-type af_qualifier() :: ?MODULE:af_generator() | ?MODULE:af_filter().
+
+-type af_generator() :: {generate, line(), ?MODULE:af_pattern(), ?MODULE:abstract_expr()}
+                      | {b_generate, line(), ?MODULE:af_pattern(), ?MODULE:abstract_expr()}.
+
+-type af_filter() :: ?MODULE:abstract_expr().
+
+-type af_block() :: {block, line(), ?MODULE:af_body()}.
+
+-type af_if() :: {'if', line(), ?MODULE:af_clause_seq()}.
+
+-type af_case() :: {'case', line(), ?MODULE:abstract_expr(), ?MODULE:af_clause_seq()}.
+
+-type af_try() :: {'try',
+                   line(),
+                   ?MODULE:af_body(),
+                   ?MODULE:af_clause_seq(),
+                   ?MODULE:af_catch_clause_seq(),
+                   ?MODULE:af_body()}.
+
+-type af_clause_seq() :: [?MODULE:af_clause(), ...].
+
+-type af_catch_clause_seq() :: [?MODULE:af_clause(), ...].
+
+-type af_receive() ::
+        {'receive', line(), ?MODULE:af_clause_seq()}
+      | {'receive', line(), ?MODULE:af_clause_seq(), ?MODULE:abstract_expr(), ?MODULE:af_body()}.
+
+-type af_local_fun() :: {'fun', line(), {function, function(), arity()}}.
+
+-type af_remote_fun() ::
+        {'fun', line(), {function, module(), function(), arity()}}
+      | {'fun', line(), {function, ?MODULE:af_atom(), ?MODULE:af_atom(), ?MODULE:af_integer()}}.
+
+-type af_fun() :: {'fun', line(), {clauses, ?MODULE:af_clause_seq()}}.
+
+-type af_query() :: {'query', line(), ?MODULE:af_list_comprehension()}.
+
+-type af_query_access() ::
+        {record_field, line(), ?MODULE:abstract_expr(), ?MODULE:af_field_name()}.
+
+-type abstract_clause() :: ?MODULE:af_clause() | ?MODULE:af_catch_clause().
+
+-type af_clause() ::
+        {clause, line(), [?MODULE:af_pattern()], ?MODULE:af_guard_seq(), ?MODULE:af_body()}.
+
+-type af_catch_clause() ::
+        {clause, line(), [?MODULE:af_catch_pattern()], ?MODULE:af_guard_seq(), ?MODULE:af_body()}.
+
+-type af_catch_pattern() ::
+        {?MODULE:af_catch_class(), ?MODULE:af_pattern(), ?MODULE:af_anon_variable()}.
+
+-type af_catch_class() ::
+        ?MODULE:af_variable()
+      | ?MODULE:af_lit_atom(throw) | ?MODULE:af_lit_atom(error) | ?MODULE:af_lit_atom(exit).
+
+-type af_body() :: [?MODULE:abstract_expr(), ...].
+
+-type af_guard_seq() :: [?MODULE:af_guard()].
+
+-type af_guard() :: [?MODULE:af_guard_test(), ...].
+
+-type af_guard_test() :: ?MODULE:af_literal()
+                       | ?MODULE:af_variable()
+                       | ?MODULE:af_tuple(?MODULE:af_guard_test())
+                       | ?MODULE:af_nil()
+                       | ?MODULE:af_cons(?MODULE:af_guard_test())
+                       | ?MODULE:af_bin(?MODULE:af_guard_test())
+                       | ?MODULE:af_binary_op(?MODULE:af_guard_test())
+                       | ?MODULE:af_unary_op(?MODULE:af_guard_test())
+                       | ?MODULE:af_record_access(?MODULE:af_guard_test())
+                       | ?MODULE:af_record_index()
+                       | ?MODULE:af_record_field(?MODULE:af_guard_test())
+                       | ?MODULE:af_guard_call()
+                       | ?MODULE:af_remote_guard_call().
+
+-type af_record_access(T) ::
+        {record, line(), ?MODULE:af_record_name(), [?MODULE:af_record_field(T)]}.
+
+-type af_guard_call() :: {call, line(), function(), [?MODULE:af_guard_test()]}.
+
+-type af_remote_guard_call() ::
+        {call, line(), atom(), ?MODULE:af_lit_atom(erlang), [?MODULE:af_guard_test()]}.
+
+-type af_pattern() :: ?MODULE:af_literal()
+                    | ?MODULE:af_match(?MODULE:af_pattern())
+                    | ?MODULE:af_variable()
+                    | ?MODULE:af_anon_variable()
+                    | ?MODULE:af_tuple(?MODULE:af_pattern())
+                    | ?MODULE:af_nil()
+                    | ?MODULE:af_cons(?MODULE:af_pattern())
+                    | ?MODULE:af_bin(?MODULE:af_pattern())
+                    | ?MODULE:af_binary_op(?MODULE:af_pattern())
+                    | ?MODULE:af_unary_op(?MODULE:af_pattern())
+                    | ?MODULE:af_record_index()
+                    | ?MODULE:af_record_field(?MODULE:af_pattern()).
+
+-type af_literal() :: ?MODULE:af_atom() | ?MODULE:af_integer() | ?MODULE:af_float() | ?MODULE:af_string().
+
+-type af_atom() :: ?MODULE:af_lit_atom(atom()).
+
+-type af_lit_atom(A) :: {atom, line(), A}.
+
+-type af_integer() :: {integer, line(), non_neg_integer()}.
+
+-type af_float() :: {float, line(), float()}.
+
+-type af_string() :: {string, line(), [byte()]}.
+
+-type af_match(T) :: {match, line(), T, T}.
+
+-type af_variable() :: {var, line(), atom()}.
+
+-type af_anon_variable() :: {var, line(), '_'}.
+
+-type af_tuple(T) :: {tuple, line(), [T]}.
+
+-type af_nil() :: {nil, line()}.
+
+-type af_cons(T) :: {cons, line, T, T}.
+
+-type af_bin(T) :: {bin, line(), [?MODULE:af_binelement(T)]}.
+
+-type af_binelement(T) :: {bin_element,
+                           line(),
+                           T,
+                           ?MODULE:af_binelement_size(),
+                           type_specifier_list()}.
+
+-type af_binelement_size() :: default | ?MODULE:abstract_expr().
+
+-type af_binary_op(T) :: {op, line(), T, ?MODULE:af_binop(), T}.
+
+-type af_binop() :: '/' | '*' | 'div' | 'rem' | 'band' | 'and' | '+' | '-'
+                  | 'bor' | 'bxor' | 'bsl' | 'bsr' | 'or' | 'xor' | '++'
+                  | '--' | '==' | '/=' | '=<' | '<'  | '>=' | '>' | '=:='
+                  | '=/='.
+
+-type af_unary_op(T) :: {op, line(), ?MODULE:af_unop(), T}.
+
+-type af_unop() :: '+' | '*' | 'bnot' | 'not'.
+
+%% See also lib/stdlib/{src/erl_bits.erl,include/erl_bits.hrl}.
+-type type_specifier_list() :: default | [type_specifier(), ...].
+
+-type type_specifier() :: af_type()
+                        | af_signedness()
+                        | af_endianness()
+                        | af_unit().
+
+-type af_type() :: integer
+                 | float
+                 | binary
+                 | bytes
+                 | bitstring
+                 | bits
+                 | utf8
+                 | utf16
+                 | utf32.
+
+-type af_signedness() :: signed | unsigned.
+
+-type af_endianness() :: big | little | native.
+
+-type af_unit() :: {unit, 1..256}.
+
+-type af_record_index() ::
+        {record_index, line(), af_record_name(), af_field_name()}.
+
+-type af_record_field(T) :: {record_field, line(), af_field_name(), T}.
+
+-type af_record_name() :: atom().
+
+-type af_field_name() :: atom().
+
+%% End of Abstract Format
+
+-type error_description() :: term().
+-type error_info() :: {erl_scan:line(), module(), error_description()}.
+-type token() :: {Tag :: atom(), Line :: erl_scan:line()}.
+
+%% mkop(Op, Arg) -> {op,Line,Op,Arg}.
+%% mkop(Left, Op, Right) -> {op,Line,Op,Left,Right}.
+
+-define(mkop2(L, OpPos, R),
+        begin
+            {Op,Pos} = OpPos,
+            {op,Pos,Op,L,R}
+        end).
+
+-define(mkop1(OpPos, A),
+        begin
+            {Op,Pos} = OpPos,
+            {op,Pos,Op,A}
+        end).
+
+%% keep track of line info in tokens
+-define(line(Tup), element(2, Tup)).
+
+%% Entry points compatible to old erl_parse.
+%% These really suck and are only here until Calle gets multiple
+%% entry points working.
+
+-spec parse_form(Tokens) -> {ok, AbsForm} | {error, ErrorInfo} when
+      Tokens :: [token()],
+      AbsForm :: abstract_form(),
+      ErrorInfo :: error_info().
+parse_form([{'-',L1},{atom,L2,spec}|Tokens]) ->
+    parse([{'-',L1},{'spec',L2}|Tokens]);
+parse_form([{'-',L1},{atom,L2,callback}|Tokens]) ->
+    parse([{'-',L1},{'callback',L2}|Tokens]);
+parse_form(Tokens) ->
+    parse(Tokens).
+
+-spec parse_exprs(Tokens) -> {ok, ExprList} | {error, ErrorInfo} when
+      Tokens :: [token()],
+      ExprList :: [abstract_expr()],
+      ErrorInfo :: error_info().
+parse_exprs(Tokens) ->
+    case parse([{atom,0,f},{'(',0},{')',0},{'->',0}|Tokens]) of
+	{ok,{function,_Lf,f,0,[{clause,_Lc,[],[],Exprs}]}} ->
+	    {ok,Exprs};
+	{error,_} = Err -> Err
+    end.
+
+-spec parse_term(Tokens) -> {ok, Term} | {error, ErrorInfo} when
+      Tokens :: [token()],
+      Term :: term(),
+      ErrorInfo :: error_info().
+parse_term(Tokens) ->
+    case parse([{atom,0,f},{'(',0},{')',0},{'->',0}|Tokens]) of
+	{ok,{function,_Lf,f,0,[{clause,_Lc,[],[],[Expr]}]}} ->
+	    try normalise(Expr) of
+		Term -> {ok,Term}
+	    catch
+		_:_R -> {error,{?line(Expr),?MODULE,"bad term"}}
+	    end;
+	{ok,{function,_Lf,f,0,[{clause,_Lc,[],[],[_E1,E2|_Es]}]}} ->
+	    {error,{?line(E2),?MODULE,"bad term"}};
+	{error,_} = Err -> Err
+    end.
+
+%%  Convert between the abstract form of a term and a term.
+
+-spec normalise(AbsTerm) -> Data when
+      AbsTerm :: abstract_expr(),
+      Data :: term().
+normalise({char,_,C}) -> C;
+normalise({integer,_,I}) -> I;
+normalise({float,_,F}) -> F;
+normalise({atom,_,A}) -> A;
+normalise({string,_,S}) -> S;
+normalise({nil,_}) -> [];
+normalise({bin,_,Fs}) ->
+    {value, B, _} =
+	eval_bits:expr_grp(Fs, [],
+			   fun(E, _) ->
+				   {value, normalise(E), []}
+			   end, [], true),
+    B;
+normalise({cons,_,Head,Tail}) ->
+    [normalise(Head)|normalise(Tail)];
+normalise({tuple,_,Args}) ->
+    list_to_tuple(normalise_list(Args));
+%% Atom dot-notation, as in 'foo.bar.baz'
+%% Special case for unary +/-.
+normalise({op,_,'+',{char,_,I}}) -> I;
+normalise({op,_,'+',{integer,_,I}}) -> I;
+normalise({op,_,'+',{float,_,F}}) -> F;
+normalise({op,_,'-',{char,_,I}}) -> -I;		%Weird, but compatible!
+normalise({op,_,'-',{integer,_,I}}) -> -I;
+normalise({op,_,'-',{float,_,F}}) -> -F;
+normalise(X) -> erlang:error({badarg, X}).
+
+normalise_list([H|T]) ->
+    [normalise(H)|normalise_list(T)];
+normalise_list([]) ->
+    [].
+
+%%  Generate a list of tokens representing the abstract term.
+
+-spec tokens(AbsTerm) -> Tokens when
+      AbsTerm :: abstract_expr(),
+      Tokens :: [token()].
+tokens(Abs) ->
+    tokens(Abs, []).
+
+-spec tokens(AbsTerm, MoreTokens) -> Tokens when
+      AbsTerm :: abstract_expr(),
+      MoreTokens :: [token()],
+      Tokens :: [token()].
+tokens({char,L,C}, More) -> [{char,L,C}|More];
+tokens({integer,L,N}, More) -> [{integer,L,N}|More];
+tokens({float,L,F}, More) -> [{float,L,F}|More];
+tokens({atom,L,A}, More) -> [{atom,L,A}|More];
+tokens({var,L,V}, More) -> [{var,L,V}|More];
+tokens({string,L,S}, More) -> [{string,L,S}|More];
+tokens({nil,L}, More) -> [{'[',L},{']',L}|More];
+tokens({cons,L,Head,Tail}, More) ->
+    [{'[',L}|tokens(Head, tokens_tail(Tail, More))];
+tokens({tuple,L,[]}, More) ->
+    [{'{',L},{'}',L}|More];
+tokens({tuple,L,[E|Es]}, More) ->
+    [{'{',L}|tokens(E, tokens_tuple(Es, ?line(E), More))].
+
+tokens_tail({cons,L,Head,Tail}, More) ->
+    [{',',L}|tokens(Head, tokens_tail(Tail, More))];
+tokens_tail({nil,L}, More) ->
+    [{']',L}|More];
+tokens_tail(Other, More) ->
+    L = ?line(Other),
+    [{'|',L}|tokens(Other, [{']',L}|More])].
+
+tokens_tuple([E|Es], Line, More) ->
+    [{',',Line}|tokens(E, tokens_tuple(Es, ?line(E), More))];
+tokens_tuple([], Line, More) ->
+    [{'}',Line}|More].
+
+%% Give the relative precedences of operators.
+
+inop_prec('=') -> {150,100,100};
+inop_prec('!') -> {150,100,100};
+inop_prec('orelse') -> {160,150,150};
+inop_prec('andalso') -> {200,160,160};
+inop_prec('==') -> {300,200,300};
+inop_prec('/=') -> {300,200,300};
+inop_prec('=<') -> {300,200,300};
+inop_prec('<') -> {300,200,300};
+inop_prec('>=') -> {300,200,300};
+inop_prec('>') -> {300,200,300};
+inop_prec('=:=') -> {300,200,300};
+inop_prec('=/=') -> {300,200,300};
+inop_prec('++') -> {400,300,300};
+inop_prec('--') -> {400,300,300};
+inop_prec('+') -> {400,400,500};
+inop_prec('-') -> {400,400,500};
+inop_prec('bor') -> {400,400,500};
+inop_prec('bxor') -> {400,400,500};
+inop_prec('bsl') -> {400,400,500};
+inop_prec('bsr') -> {400,400,500};
+inop_prec('or') -> {400,400,500};
+inop_prec('xor') -> {400,400,500};
+inop_prec('*') -> {500,500,600};
+inop_prec('/') -> {500,500,600};
+inop_prec('div') -> {500,500,600};
+inop_prec('rem') -> {500,500,600};
+inop_prec('band') -> {500,500,600};
+inop_prec('and') -> {500,500,600};
+inop_prec('#') -> {800,700,800};
+inop_prec(':') -> {900,800,900};
+inop_prec('.') -> {900,900,1000}.
+
+-type pre_op() :: 'catch' | '+' | '-' | 'bnot' | 'not' | '#'.
+
+-spec preop_prec(pre_op()) -> {0 | 600 | 700, 100 | 700 | 800}.
+
+preop_prec('catch') -> {0,100};
+preop_prec('+') -> {600,700};
+preop_prec('-') -> {600,700};
+preop_prec('bnot') -> {600,700};
+preop_prec('not') -> {600,700};
+preop_prec('#') -> {700,800}.
+
+-spec func_prec() -> {800,700}.
+
+func_prec() -> {800,700}.
+
+-spec max_prec() -> 1000.
+
+max_prec() -> 1000.
+
+parse(T) ->
+    bar:foo(T).
diff --git a/lib/dialyzer/test/small_SUITE_data/src/big_local_type.erl b/lib/dialyzer/test/small_SUITE_data/src/big_local_type.erl
new file mode 100644
index 0000000000..6de263eda1
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/src/big_local_type.erl
@@ -0,0 +1,525 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2001-2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+%%% A stripped version of erl_parse.yrl.
+%%%
+%%% A type for the abstract format with *local* types has been added.
+%%% The type of the abstract format is not up-to-date, but it does not
+%%% matter since the purpose of the type is to stress the conversion
+%%% of type forms to erl_type().
+
+-module(big_local_type).
+
+-export([parse_form/1,parse_exprs/1,parse_term/1]).
+-export([normalise/1,tokens/1,tokens/2]).
+-export([inop_prec/1,preop_prec/1,func_prec/0,max_prec/0]).
+
+-export_type([abstract_clause/0, abstract_expr/0, abstract_form/0,
+              error_info/0]).
+
+%% Start of Abstract Format
+
+-type line() :: erl_scan:line().
+
+-export_type([af_module/0, af_export/0, af_import/0, af_fa_list/0,
+              af_compile/0, af_file/0, af_record_decl/0,
+              af_field_decl/0, af_wild_attribute/0,
+              af_record_update/1, af_catch/0, af_local_call/0,
+              af_remote_call/0, af_args/0, af_local_function/0,
+              af_remote_function/0, af_list_comprehension/0,
+              af_binary_comprehension/0, af_template/0,
+              af_qualifier_seq/0, af_qualifier/0, af_generator/0,
+              af_filter/0, af_block/0, af_if/0, af_case/0, af_try/0,
+              af_clause_seq/0, af_catch_clause_seq/0, af_receive/0,
+              af_local_fun/0, af_remote_fun/0, af_fun/0, af_query/0,
+              af_query_access/0, af_clause/0,
+              af_catch_clause/0, af_catch_pattern/0, af_catch_class/0,
+              af_body/0, af_guard_seq/0, af_guard/0, af_guard_test/0,
+              af_record_access/1, af_guard_call/0,
+              af_remote_guard_call/0, af_pattern/0, af_literal/0,
+              af_atom/0, af_lit_atom/1, af_integer/0, af_float/0,
+              af_string/0, af_match/1, af_variable/0,
+              af_anon_variable/0, af_tuple/1, af_nil/0, af_cons/1,
+              af_bin/1, af_binelement/1, af_binelement_size/0,
+              af_binary_op/1, af_binop/0, af_unary_op/1, af_unop/0]).
+
+-type abstract_form() :: af_module()
+                       | af_export()
+                       | af_import()
+                       | af_compile()
+                       | af_file()
+                       | af_record_decl()
+                       | af_wild_attribute()
+                       | af_function_decl().
+
+-type af_module() :: {attribute, line(), module, module()}.
+
+-type af_export() :: {attribute, line(), export, af_fa_list()}.
+
+-type af_import() :: {attribute, line(), import, af_fa_list()}.
+
+-type af_fa_list() :: [{function(), arity()}].
+
+-type af_compile() :: {attribute, line(), compile, any()}.
+
+-type af_file() :: {attribute, line(), file, {string(), line()}}.
+
+-type af_record_decl() ::
+        {attribute, line(), record, af_record_name(), [af_field_decl()]}.
+
+-type af_field_decl() :: {record_field, line(), af_atom()}
+                       | {record_field, line(), af_atom(), abstract_expr()}.
+
+%% Types and specs, among other things...
+-type af_wild_attribute() :: {attribute, line(), af_atom(), any()}.
+
+-type af_function_decl() ::
+        {function, line(), function(), arity(), af_clause_seq()}.
+
+-type abstract_expr() :: af_literal()
+                       | af_match(abstract_expr())
+                       | af_variable()
+                       | af_tuple(abstract_expr())
+                       | af_nil()
+                       | af_cons(abstract_expr())
+                       | af_bin(abstract_expr())
+                       | af_binary_op(abstract_expr())
+                       | af_unary_op(abstract_expr())
+                       | af_record_access(abstract_expr())
+                       | af_record_update(abstract_expr())
+                       | af_record_index()
+                       | af_record_field(abstract_expr())
+                       | af_catch()
+                       | af_local_call()
+                       | af_remote_call()
+                       | af_list_comprehension()
+                       | af_binary_comprehension()
+                       | af_block()
+                       | af_if()
+                       | af_case()
+                       | af_try()
+                       | af_receive()
+                       | af_local_fun()
+                       | af_remote_fun()
+                       | af_fun()
+                       | af_query()
+                       | af_query_access().
+
+-type af_record_update(T) :: {record,
+                              line(),
+                              abstract_expr(),
+                              af_record_name(),
+                              [af_record_field(T)]}.
+
+-type af_catch() :: {'catch', line(), abstract_expr()}.
+
+-type af_local_call() :: {call, line(), af_local_function(), af_args()}.
+
+-type af_remote_call() :: {call, line(), af_remote_function(), af_args()}.
+
+-type af_args() :: [abstract_expr()].
+
+-type af_local_function() :: abstract_expr().
+
+-type af_remote_function() ::
+        {remote, line(), abstract_expr(), abstract_expr()}.
+
+-type af_list_comprehension() ::
+        {lc, line(), af_template(), af_qualifier_seq()}.
+
+-type af_binary_comprehension() ::
+        {bc, line(), af_template(), af_qualifier_seq()}.
+
+-type af_template() :: abstract_expr().
+
+-type af_qualifier_seq() :: [af_qualifier()].
+
+-type af_qualifier() :: af_generator() | af_filter().
+
+-type af_generator() :: {generate, line(), af_pattern(), abstract_expr()}
+                      | {b_generate, line(), af_pattern(), abstract_expr()}.
+
+-type af_filter() :: abstract_expr().
+
+-type af_block() :: {block, line(), af_body()}.
+
+-type af_if() :: {'if', line(), af_clause_seq()}.
+
+-type af_case() :: {'case', line(), abstract_expr(), af_clause_seq()}.
+
+-type af_try() :: {'try',
+                   line(),
+                   af_body(),
+                   af_clause_seq(),
+                   af_catch_clause_seq(),
+                   af_body()}.
+
+-type af_clause_seq() :: [af_clause(), ...].
+
+-type af_catch_clause_seq() :: [af_clause(), ...].
+
+-type af_receive() ::
+        {'receive', line(), af_clause_seq()}
+      | {'receive', line(), af_clause_seq(), abstract_expr(), af_body()}.
+
+-type af_local_fun() :: {'fun', line(), {function, function(), arity()}}.
+
+-type af_remote_fun() ::
+        {'fun', line(), {function, module(), function(), arity()}}
+      | {'fun', line(), {function, af_atom(), af_atom(), af_integer()}}.
+
+-type af_fun() :: {'fun', line(), {clauses, af_clause_seq()}}.
+
+-type af_query() :: {'query', line(), af_list_comprehension()}.
+
+-type af_query_access() ::
+        {record_field, line(), abstract_expr(), af_field_name()}.
+
+-type abstract_clause() :: af_clause() | af_catch_clause().
+
+-type af_clause() ::
+        {clause, line(), [af_pattern()], af_guard_seq(), af_body()}.
+
+-type af_catch_clause() ::
+        {clause, line(), [af_catch_pattern()], af_guard_seq(), af_body()}.
+
+-type af_catch_pattern() ::
+        {af_catch_class(), af_pattern(), af_anon_variable()}.
+
+-type af_catch_class() ::
+        af_variable()
+      | af_lit_atom(throw) | af_lit_atom(error) | af_lit_atom(exit).
+
+-type af_body() :: [abstract_expr(), ...].
+
+-type af_guard_seq() :: [af_guard()].
+
+-type af_guard() :: [af_guard_test(), ...].
+
+-type af_guard_test() :: af_literal()
+                       | af_variable()
+                       | af_tuple(af_guard_test())
+                       | af_nil()
+                       | af_cons(af_guard_test())
+                       | af_bin(af_guard_test())
+                       | af_binary_op(af_guard_test())
+                       | af_unary_op(af_guard_test())
+                       | af_record_access(af_guard_test())
+                       | af_record_index()
+                       | af_record_field(af_guard_test())
+                       | af_guard_call()
+                       | af_remote_guard_call().
+
+-type af_record_access(T) ::
+        {record, line(), af_record_name(), [af_record_field(T)]}.
+
+-type af_guard_call() :: {call, line(), function(), [af_guard_test()]}.
+
+-type af_remote_guard_call() ::
+        {call, line(), atom(), af_lit_atom(erlang), [af_guard_test()]}.
+
+-type af_pattern() :: af_literal()
+                    | af_match(af_pattern())
+                    | af_variable()
+                    | af_anon_variable()
+                    | af_tuple(af_pattern())
+                    | af_nil()
+                    | af_cons(af_pattern())
+                    | af_bin(af_pattern())
+                    | af_binary_op(af_pattern())
+                    | af_unary_op(af_pattern())
+                    | af_record_index()
+                    | af_record_field(af_pattern()).
+
+-type af_literal() :: af_atom() | af_integer() | af_float() | af_string().
+
+-type af_atom() :: af_lit_atom(atom()).
+
+-type af_lit_atom(A) :: {atom, line(), A}.
+
+-type af_integer() :: {integer, line(), non_neg_integer()}.
+
+-type af_float() :: {float, line(), float()}.
+
+-type af_string() :: {string, line(), [byte()]}.
+
+-type af_match(T) :: {match, line(), T, T}.
+
+-type af_variable() :: {var, line(), atom()}.
+
+-type af_anon_variable() :: {var, line(), '_'}.
+
+-type af_tuple(T) :: {tuple, line(), [T]}.
+
+-type af_nil() :: {nil, line()}.
+
+-type af_cons(T) :: {cons, line, T, T}.
+
+-type af_bin(T) :: {bin, line(), [af_binelement(T)]}.
+
+-type af_binelement(T) :: {bin_element,
+                           line(),
+                           T,
+                           af_binelement_size(),
+                           type_specifier_list()}.
+
+-type af_binelement_size() :: default | abstract_expr().
+
+-type af_binary_op(T) :: {op, line(), T, af_binop(), T}.
+
+-type af_binop() :: '/' | '*' | 'div' | 'rem' | 'band' | 'and' | '+' | '-'
+                  | 'bor' | 'bxor' | 'bsl' | 'bsr' | 'or' | 'xor' | '++'
+                  | '--' | '==' | '/=' | '=<' | '<'  | '>=' | '>' | '=:='
+                  | '=/='.
+
+-type af_unary_op(T) :: {op, line(), af_unop(), T}.
+
+-type af_unop() :: '+' | '*' | 'bnot' | 'not'.
+
+%% See also lib/stdlib/{src/erl_bits.erl,include/erl_bits.hrl}.
+-type type_specifier_list() :: default | [type_specifier(), ...].
+
+-type type_specifier() :: af_type()
+                        | af_signedness()
+                        | af_endianness()
+                        | af_unit().
+
+-type af_type() :: integer
+                 | float
+                 | binary
+                 | bytes
+                 | bitstring
+                 | bits
+                 | utf8
+                 | utf16
+                 | utf32.
+
+-type af_signedness() :: signed | unsigned.
+
+-type af_endianness() :: big | little | native.
+
+-type af_unit() :: {unit, 1..256}.
+
+-type af_record_index() ::
+        {record_index, line(), af_record_name(), af_field_name()}.
+
+-type af_record_field(T) :: {record_field, line(), af_field_name(), T}.
+
+-type af_record_name() :: atom().
+
+-type af_field_name() :: atom().
+
+%% End of Abstract Format
+
+-type error_description() :: term().
+-type error_info() :: {erl_scan:line(), module(), error_description()}.
+-type token() :: {Tag :: atom(), Line :: erl_scan:line()}.
+
+%% mkop(Op, Arg) -> {op,Line,Op,Arg}.
+%% mkop(Left, Op, Right) -> {op,Line,Op,Left,Right}.
+
+-define(mkop2(L, OpPos, R),
+        begin
+            {Op,Pos} = OpPos,
+            {op,Pos,Op,L,R}
+        end).
+
+-define(mkop1(OpPos, A),
+        begin
+            {Op,Pos} = OpPos,
+            {op,Pos,Op,A}
+        end).
+
+%% keep track of line info in tokens
+-define(line(Tup), element(2, Tup)).
+
+%% Entry points compatible to old erl_parse.
+%% These really suck and are only here until Calle gets multiple
+%% entry points working.
+
+-spec parse_form(Tokens) -> {ok, AbsForm} | {error, ErrorInfo} when
+      Tokens :: [token()],
+      AbsForm :: abstract_form(),
+      ErrorInfo :: error_info().
+parse_form([{'-',L1},{atom,L2,spec}|Tokens]) ->
+    parse([{'-',L1},{'spec',L2}|Tokens]);
+parse_form([{'-',L1},{atom,L2,callback}|Tokens]) ->
+    parse([{'-',L1},{'callback',L2}|Tokens]);
+parse_form(Tokens) ->
+    parse(Tokens).
+
+-spec parse_exprs(Tokens) -> {ok, ExprList} | {error, ErrorInfo} when
+      Tokens :: [token()],
+      ExprList :: [abstract_expr()],
+      ErrorInfo :: error_info().
+parse_exprs(Tokens) ->
+    case parse([{atom,0,f},{'(',0},{')',0},{'->',0}|Tokens]) of
+	{ok,{function,_Lf,f,0,[{clause,_Lc,[],[],Exprs}]}} ->
+	    {ok,Exprs};
+	{error,_} = Err -> Err
+    end.
+
+-spec parse_term(Tokens) -> {ok, Term} | {error, ErrorInfo} when
+      Tokens :: [token()],
+      Term :: term(),
+      ErrorInfo :: error_info().
+parse_term(Tokens) ->
+    case parse([{atom,0,f},{'(',0},{')',0},{'->',0}|Tokens]) of
+	{ok,{function,_Lf,f,0,[{clause,_Lc,[],[],[Expr]}]}} ->
+	    try normalise(Expr) of
+		Term -> {ok,Term}
+	    catch
+		_:_R -> {error,{?line(Expr),?MODULE,"bad term"}}
+	    end;
+	{ok,{function,_Lf,f,0,[{clause,_Lc,[],[],[_E1,E2|_Es]}]}} ->
+	    {error,{?line(E2),?MODULE,"bad term"}};
+	{error,_} = Err -> Err
+    end.
+
+%%  Convert between the abstract form of a term and a term.
+
+-spec normalise(AbsTerm) -> Data when
+      AbsTerm :: abstract_expr(),
+      Data :: term().
+normalise({char,_,C}) -> C;
+normalise({integer,_,I}) -> I;
+normalise({float,_,F}) -> F;
+normalise({atom,_,A}) -> A;
+normalise({string,_,S}) -> S;
+normalise({nil,_}) -> [];
+normalise({bin,_,Fs}) ->
+    {value, B, _} =
+	eval_bits:expr_grp(Fs, [],
+			   fun(E, _) ->
+				   {value, normalise(E), []}
+			   end, [], true),
+    B;
+normalise({cons,_,Head,Tail}) ->
+    [normalise(Head)|normalise(Tail)];
+normalise({tuple,_,Args}) ->
+    list_to_tuple(normalise_list(Args));
+%% Atom dot-notation, as in 'foo.bar.baz'
+%% Special case for unary +/-.
+normalise({op,_,'+',{char,_,I}}) -> I;
+normalise({op,_,'+',{integer,_,I}}) -> I;
+normalise({op,_,'+',{float,_,F}}) -> F;
+normalise({op,_,'-',{char,_,I}}) -> -I;		%Weird, but compatible!
+normalise({op,_,'-',{integer,_,I}}) -> -I;
+normalise({op,_,'-',{float,_,F}}) -> -F;
+normalise(X) -> erlang:error({badarg, X}).
+
+normalise_list([H|T]) ->
+    [normalise(H)|normalise_list(T)];
+normalise_list([]) ->
+    [].
+
+%%  Generate a list of tokens representing the abstract term.
+
+-spec tokens(AbsTerm) -> Tokens when
+      AbsTerm :: abstract_expr(),
+      Tokens :: [token()].
+tokens(Abs) ->
+    tokens(Abs, []).
+
+-spec tokens(AbsTerm, MoreTokens) -> Tokens when
+      AbsTerm :: abstract_expr(),
+      MoreTokens :: [token()],
+      Tokens :: [token()].
+tokens({char,L,C}, More) -> [{char,L,C}|More];
+tokens({integer,L,N}, More) -> [{integer,L,N}|More];
+tokens({float,L,F}, More) -> [{float,L,F}|More];
+tokens({atom,L,A}, More) -> [{atom,L,A}|More];
+tokens({var,L,V}, More) -> [{var,L,V}|More];
+tokens({string,L,S}, More) -> [{string,L,S}|More];
+tokens({nil,L}, More) -> [{'[',L},{']',L}|More];
+tokens({cons,L,Head,Tail}, More) ->
+    [{'[',L}|tokens(Head, tokens_tail(Tail, More))];
+tokens({tuple,L,[]}, More) ->
+    [{'{',L},{'}',L}|More];
+tokens({tuple,L,[E|Es]}, More) ->
+    [{'{',L}|tokens(E, tokens_tuple(Es, ?line(E), More))].
+
+tokens_tail({cons,L,Head,Tail}, More) ->
+    [{',',L}|tokens(Head, tokens_tail(Tail, More))];
+tokens_tail({nil,L}, More) ->
+    [{']',L}|More];
+tokens_tail(Other, More) ->
+    L = ?line(Other),
+    [{'|',L}|tokens(Other, [{']',L}|More])].
+
+tokens_tuple([E|Es], Line, More) ->
+    [{',',Line}|tokens(E, tokens_tuple(Es, ?line(E), More))];
+tokens_tuple([], Line, More) ->
+    [{'}',Line}|More].
+
+%% Give the relative precedences of operators.
+
+inop_prec('=') -> {150,100,100};
+inop_prec('!') -> {150,100,100};
+inop_prec('orelse') -> {160,150,150};
+inop_prec('andalso') -> {200,160,160};
+inop_prec('==') -> {300,200,300};
+inop_prec('/=') -> {300,200,300};
+inop_prec('=<') -> {300,200,300};
+inop_prec('<') -> {300,200,300};
+inop_prec('>=') -> {300,200,300};
+inop_prec('>') -> {300,200,300};
+inop_prec('=:=') -> {300,200,300};
+inop_prec('=/=') -> {300,200,300};
+inop_prec('++') -> {400,300,300};
+inop_prec('--') -> {400,300,300};
+inop_prec('+') -> {400,400,500};
+inop_prec('-') -> {400,400,500};
+inop_prec('bor') -> {400,400,500};
+inop_prec('bxor') -> {400,400,500};
+inop_prec('bsl') -> {400,400,500};
+inop_prec('bsr') -> {400,400,500};
+inop_prec('or') -> {400,400,500};
+inop_prec('xor') -> {400,400,500};
+inop_prec('*') -> {500,500,600};
+inop_prec('/') -> {500,500,600};
+inop_prec('div') -> {500,500,600};
+inop_prec('rem') -> {500,500,600};
+inop_prec('band') -> {500,500,600};
+inop_prec('and') -> {500,500,600};
+inop_prec('#') -> {800,700,800};
+inop_prec(':') -> {900,800,900};
+inop_prec('.') -> {900,900,1000}.
+
+-type pre_op() :: 'catch' | '+' | '-' | 'bnot' | 'not' | '#'.
+
+-spec preop_prec(pre_op()) -> {0 | 600 | 700, 100 | 700 | 800}.
+
+preop_prec('catch') -> {0,100};
+preop_prec('+') -> {600,700};
+preop_prec('-') -> {600,700};
+preop_prec('bnot') -> {600,700};
+preop_prec('not') -> {600,700};
+preop_prec('#') -> {700,800}.
+
+-spec func_prec() -> {800,700}.
+
+func_prec() -> {800,700}.
+
+-spec max_prec() -> 1000.
+
+max_prec() -> 1000.
+
+parse(T) ->
+    bar:foo(T).
diff --git a/lib/dialyzer/test/small_SUITE_data/src/blame_contract_range_suppressed.erl b/lib/dialyzer/test/small_SUITE_data/src/blame_contract_range_suppressed.erl
new file mode 100644
index 0000000000..8b66d35083
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/src/blame_contract_range_suppressed.erl
@@ -0,0 +1,15 @@
+%%-----------------------------------------------------------------------
+%% Like ./blame_contract_range.erl, but warning is suppressed.
+%%-----------------------------------------------------------------------
+-module(blame_contract_range_suppressed).
+
+-export([foo/0]).
+
+foo() ->
+  bar(b).
+
+-dialyzer({nowarn_function, bar/1}).
+
+-spec bar(atom()) -> a.
+bar(a) -> a;
+bar(b) -> b.
diff --git a/lib/dialyzer/test/small_SUITE_data/src/contracts_with_subtypes.erl b/lib/dialyzer/test/small_SUITE_data/src/contracts_with_subtypes.erl
index d7dfd9752e..dbabd904c2 100644
--- a/lib/dialyzer/test/small_SUITE_data/src/contracts_with_subtypes.erl
+++ b/lib/dialyzer/test/small_SUITE_data/src/contracts_with_subtypes.erl
@@ -136,10 +136,14 @@ q(ab) -> rec2({a, b}); % breaks the contract
 q(ba) -> rec2({b, a}); % breaks the contract
 q(aba) -> rec2({a, {b, a}}); % breaks the contract
 q(bab) -> rec2({b, {a, b}}); % breaks the contract
-q(abab) -> rec2({a, {b, {a, b}}});
-q(baba) -> rec2({b, {a, {b, a}}});
-q(ababa) -> rec2({a, {b, {a, {b, a}}}});
-q(babab) -> rec2({b, {a, {b, {a, b}}}}).
+q(abab) -> rec2({a, {b, {a, b}}}); % breaks the contract
+q(baba) -> rec2({b, {a, {b, a}}}); % breaks the contract
+q(ababa) -> rec2({a, {b, {a, {b, a}}}}); % breaks the contract
+q(babab) -> rec2({b, {a, {b, {a, b}}}}); % breaks the contract
+q(ababab) -> rec2({a, {b, {a, {b, {a, b}}}}});
+q(bababa) -> rec2({b, {a, {b, {a, {b, a}}}}});
+q(abababa) -> rec2({a, {b, {a, {b, {a, {b, a}}}}}});
+q(bababab) -> rec2({b, {a, {b, {a, {b, {a, b}}}}}}).
 
 %===============================================================================
 
diff --git a/lib/dialyzer/test/small_SUITE_data/src/ditrap.erl b/lib/dialyzer/test/small_SUITE_data/src/ditrap.erl
new file mode 100644
index 0000000000..2d75f25bd5
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/src/ditrap.erl
@@ -0,0 +1,47 @@
+%% A bug reported by Tail-f Systems. The problem is that record types
+%% are included without properly limiting their depth.
+
+-module(ditrap).
+
+-define(tref(T), ?MODULE:T).
+-define(fref(T), ?MODULE:T).
+
+-export_type([ module_rec/0
+             , typedef_rec/0
+             , type_spec_fun/0
+             ]).
+
+-record(type, {
+          base :: 'builtin' | external:random_type() | ?tref(typedef_rec()),
+          type_spec_fun :: ?fref(type_spec_fun())
+         }).
+
+-record(typedef, {type :: #type{}}).
+
+-record(typedefs, {
+          map :: ?tref(typedef_rec()),
+          parent :: 'undefined' | #typedefs{}
+         }).
+
+-record(sn, {
+          module :: ?tref(module_rec()),
+          typedefs :: #typedefs{},
+          type :: 'undefined' | #type{},
+          keys :: 'undefined' | [#sn{}],
+          children = [] :: [#sn{}]
+         }).
+
+-record(augment, {children = [] :: [#sn{}]}).
+
+-record(module, {
+          submodules = [] :: [{#module{}, external:pos()}],
+          typedefs = #typedefs{} :: #typedefs{},
+          children = [] :: [#sn{}],
+          remote_augments = [] :: [{ModuleName :: atom(), [#augment{}]}],
+          local_augments  = [] :: [#augment{}]
+         }).
+
+-type typedef_rec() :: #typedef{}.
+-type module_rec() :: #module{}.
+
+-type type_spec_fun() :: undefined | fun((#type{}, #module{}) -> any()).
diff --git a/lib/dialyzer/test/small_SUITE_data/src/inv_mult.erl b/lib/dialyzer/test/small_SUITE_data/src/inv_mult.erl
new file mode 100644
index 0000000000..3413556813
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/src/inv_mult.erl
@@ -0,0 +1,15 @@
+%% Dialyzer was too constraining when checking the relation between the
+%% arguments and result of a multiplication. We should not constrain an argument
+%% if the other operand *may* be zero.
+%%
+%% Bug found by Kostis Sagonas, fixed by Stavros Aronis
+
+-module(inv_mult).
+-compile(export_all).
+
+main(L) ->
+    N = -1 * length(L),
+    fact(N).
+
+fact(0) -> 1;
+fact(N) -> N * fact(N-1).
diff --git a/lib/dialyzer/test/small_SUITE_data/src/maps1.erl b/lib/dialyzer/test/small_SUITE_data/src/maps1.erl
index 228ffe2c22..06ced5b69e 100644
--- a/lib/dialyzer/test/small_SUITE_data/src/maps1.erl
+++ b/lib/dialyzer/test/small_SUITE_data/src/maps1.erl
@@ -10,7 +10,6 @@
 
 
 -export([recv/3, decode/1]).
--export([get_my_map/0,is_my_map/1]).
 
 %-record(can_pkt, {id, data :: binary(), timestamp}).
 
@@ -40,38 +39,3 @@ t2() -> ok.
 
 update(#{ id := Id, val := Val } = M, X) when is_integer(Id) ->
     M#{ val := [Val,X] }.
-
-%% key coalescing
-
--spec get_my_map() -> map().
-
-get_my_map() ->
-    #{labels  => [one, two],
-      number  => 27,
-      [1,2,3] => wer,
-      {4,5,6} => sdf,
-      kvok    => #{
-	<<"wat">> => v,
-	a => qwe,
-	2 => asd,
-	[1,2,3] => wer,
-	{4,5,6} => sdf,
-	"abc" => zxc
-       }
-     }.
-
--spec is_my_map(map()) -> 'ok'.
-
-is_my_map(#{labels  := [one, two],
-	    number  := 27,
-	    [1,2,3] := wer,
-	    {4,5,6} := sdf,
-	    kvok := #{
-	      <<"wat">> := v,
-	      a := qwe,
-	      2 := asd,
-	      [1,2,3] := wer,
-	      {4,5,6} := sdf,
-	      "abc" := zxc
-	     }
-	   }) -> ok.
diff --git a/lib/dialyzer/test/small_SUITE_data/src/maps_sum.erl b/lib/dialyzer/test/small_SUITE_data/src/maps_sum.erl
new file mode 100644
index 0000000000..a73ac555c9
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/src/maps_sum.erl
@@ -0,0 +1,31 @@
+-module(maps_sum).
+-export([correct1/1,
+	 wrong1/1,
+	 wrong2/1]).
+
+-spec correct1(#{atom() => term()}) -> integer().
+
+correct1(Data) ->
+    maps:fold(fun (_Key, Value, Acc) when is_integer(Value) ->
+                      Acc + Value;
+                  (_Key, _Value, Acc) ->
+                      Acc
+              end, 0, Data).
+
+-spec wrong1([{atom(),term()}]) -> integer().
+
+wrong1(Data) ->
+    maps:fold(fun (_Key, Value, Acc) when is_integer(Value) ->
+                      Acc + Value;
+                  (_Key, _Value, Acc) ->
+                      Acc
+              end, 0, Data).
+
+-spec wrong2(#{atom() => term()}) -> integer().
+
+wrong2(Data) ->
+    lists:foldl(fun (_Key, Value, Acc) when is_integer(Value) ->
+                      Acc + Value;
+                  (_Key, _Value, Acc) ->
+                      Acc
+		end, 0, Data).
diff --git a/lib/dialyzer/test/small_SUITE_data/src/predef2.erl b/lib/dialyzer/test/small_SUITE_data/src/predef2.erl
deleted file mode 100644
index b1d941a49a..0000000000
--- a/lib/dialyzer/test/small_SUITE_data/src/predef2.erl
+++ /dev/null
@@ -1,56 +0,0 @@
--module(predef2).
-
--export([array/1, dict/1, digraph/1, digraph2/1, gb_set/1, gb_tree/1,
-         queue/1, set/1, tid/0, tid2/0]).
-
--export_type([array/0, digraph/0, gb_set/0]).
-
--spec array(array()) -> array:array().
-
-array(A) ->
-    array:relax(A).
-
--spec dict(dict()) -> dict:dict().
-
-dict(D) ->
-    dict:store(1, a, D).
-
--spec digraph(digraph()) -> [digraph:edge()].
-
-digraph(G) ->
-    digraph:edges(G).
-
--spec digraph2(digraph:graph()) -> [digraph:edge()].
-
-digraph2(G) ->
-    digraph:edges(G).
-
--spec gb_set(gb_set()) -> gb_sets:set().
-
-gb_set(S) ->
-    gb_sets:balance(S).
-
--spec gb_tree(gb_tree()) -> gb_trees:tree().
-
-gb_tree(S) ->
-    gb_trees:balance(S).
-
--spec queue(queue()) -> queue:queue().
-
-queue(Q) ->
-    queue:reverse(Q).
-
--spec set(set()) -> sets:set().
-
-set(S) ->
-    sets:union([S]).
-
--spec tid() -> tid().
-
-tid() ->
-    ets:new(tid, []).
-
--spec tid2() -> ets:tid().
-
-tid2() ->
-    ets:new(tid, []).
diff --git a/lib/dialyzer/test/small_SUITE_data/src/request1.erl b/lib/dialyzer/test/small_SUITE_data/src/request1.erl
new file mode 100644
index 0000000000..a6c4ab8dbd
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/src/request1.erl
@@ -0,0 +1,12 @@
+-module(request1).
+
+-export([a/0]).
+
+-dialyzer(unmatched_returns).
+
+a() ->
+    b(),
+    1.
+
+b() ->
+    {a, b}.
diff --git a/lib/dialyzer/test/small_SUITE_data/src/suppress_request.erl b/lib/dialyzer/test/small_SUITE_data/src/suppress_request.erl
new file mode 100644
index 0000000000..c4275fa110
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/src/suppress_request.erl
@@ -0,0 +1,50 @@
+-module(suppress_request).
+
+-export([test1/1, test1_b/1, test2/0, test2_b/0,
+         test3/0, test3_b/0, test4/0, test4_b/0]).
+
+-dialyzer({[specdiffs], test1/1}).
+-spec test1(a | b) -> ok. % spec is subtype
+test1(A) ->
+    ok = test1_1(A).
+
+-spec test1_b(a | b) -> ok. % spec is subtype (suppressed by default)
+test1_b(A) ->
+    ok = test1_1(A).
+
+-spec test1_1(a | b | c) -> ok.
+test1_1(_) ->
+    ok.
+
+-dialyzer(unmatched_returns).
+test2() ->
+    tuple(), % unmatched
+    ok.
+
+test2_b() ->
+    tuple(), % unmatched
+    ok.
+
+-dialyzer({[no_return, no_match], [test3/0]}).
+test3() -> % no local return (suppressed)
+    A = fun(_) ->
+                1
+        end,
+    A = 2. % can never succeed (suppressed)
+
+test3_b() -> % no local return (requested by default)
+    A = fun(_) ->
+                1
+        end,
+    A = 2. % can never succeed (requested by default)
+
+-dialyzer(no_improper_lists).
+test4() ->
+    [1 | 2]. % improper list (suppressed)
+
+-dialyzer({no_improper_lists, test4_b/0}).
+test4_b() ->
+    [1 | 2]. % improper list (suppressed)
+
+tuple() ->
+    {a, b}.
diff --git a/lib/dialyzer/test/small_SUITE_data/src/suppression1.erl b/lib/dialyzer/test/small_SUITE_data/src/suppression1.erl
new file mode 100644
index 0000000000..00534704c3
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/src/suppression1.erl
@@ -0,0 +1,33 @@
+-module(suppression1).
+
+-export([a/1, b/1, c/0]).
+
+-dialyzer({nowarn_function, a/1}).
+
+-spec a(_) -> integer().
+
+a(_) ->
+    A = fun(_) ->
+                B = fun(_) ->
+                            x = 7
+                    end,
+                B = 1
+        end,
+    A.
+
+-spec b(_) -> integer().
+
+-dialyzer({nowarn_function, b/1}).
+
+b(_) ->
+    A = fun(_) ->
+                1
+        end,
+    A = 2.
+
+-record(r, {a = a :: integer()}).
+
+-dialyzer({nowarn_function, c/0}).
+
+c() ->
+    #r{}.
diff --git a/lib/dialyzer/test/small_SUITE_data/src/suppression2.erl b/lib/dialyzer/test/small_SUITE_data/src/suppression2.erl
new file mode 100644
index 0000000000..4cba53fdce
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/src/suppression2.erl
@@ -0,0 +1,32 @@
+-module(suppression2).
+
+-export([a/1, b/1, c/0]).
+
+-dialyzer({nowarn_function, [a/1, b/1, c/0]}).
+-dialyzer([no_undefined_callbacks]).
+
+-behaviour(not_a_behaviour).
+
+-spec a(_) -> integer().
+
+a(_) ->
+    A = fun(_) ->
+                B = fun(_) ->
+                            x = 7
+                    end,
+                B = 1
+        end,
+    A.
+
+-spec b(_) -> integer().
+
+b(_) ->
+    A = fun(_) ->
+                1
+        end,
+    A = 2.
+
+-record(r, {a = a :: integer()}).
+
+c() ->
+    #r{}.
diff --git a/lib/dialyzer/test/small_SUITE_data/src/suppression3.erl b/lib/dialyzer/test/small_SUITE_data/src/suppression3.erl
new file mode 100644
index 0000000000..4a745cffc2
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/src/suppression3.erl
@@ -0,0 +1,17 @@
+-module(suppression3).
+
+-export([a/1, b/1]).
+
+-dialyzer({nowarn_function, a/1}).
+
+-spec a(_) -> integer().
+
+a(A) ->
+    ?MODULE:missing(A).
+
+-dialyzer({no_missing_calls, b/1}).
+
+-spec b(_) -> integer().
+
+b(A) ->
+    ?MODULE:missing(A).
diff --git a/lib/dialyzer/test/underspecs_SUITE_data/dialyzer_options b/lib/dialyzer/test/underspecs_SUITE_data/dialyzer_options
index 6843119b9d..f7197ac30f 100644
--- a/lib/dialyzer/test/underspecs_SUITE_data/dialyzer_options
+++ b/lib/dialyzer/test/underspecs_SUITE_data/dialyzer_options
@@ -1 +1 @@
-{dialyzer_options, [{warnings, [underspecs, no_unknown]}]}.
+{dialyzer_options, [{warnings, [underspecs]}]}.
diff --git a/lib/dialyzer/test/user_SUITE_data/dialyzer_options b/lib/dialyzer/test/user_SUITE_data/dialyzer_options
index d20ecd389f..513ed7752b 100644
--- a/lib/dialyzer/test/user_SUITE_data/dialyzer_options
+++ b/lib/dialyzer/test/user_SUITE_data/dialyzer_options
@@ -1,2 +1,2 @@
-{dialyzer_options, [{warnings, [no_unknown]}]}.
+{dialyzer_options, []}.
 {time_limit, 3}.
\ No newline at end of file
diff --git a/lib/dialyzer/vsn.mk b/lib/dialyzer/vsn.mk
index 527afaf4ef..48e0830109 100644
--- a/lib/dialyzer/vsn.mk
+++ b/lib/dialyzer/vsn.mk
@@ -1 +1 @@
-DIALYZER_VSN = 2.7.4
+DIALYZER_VSN = 2.8
diff --git a/lib/diameter/src/base/diameter_lib.erl b/lib/diameter/src/base/diameter_lib.erl
index 3f327f3653..51d203d722 100644
--- a/lib/diameter/src/base/diameter_lib.erl
+++ b/lib/diameter/src/base/diameter_lib.erl
@@ -19,6 +19,7 @@
 
 -module(diameter_lib).
 -compile({no_auto_import, [now/0]}).
+-compile({nowarn_deprecated_function, [{erlang, now, 0}]}).
 
 -export([info_report/2,
          error_report/2,
diff --git a/lib/diameter/src/compiler/diameter_codegen.erl b/lib/diameter/src/compiler/diameter_codegen.erl
index d91a776321..d5a9c81b09 100644
--- a/lib/diameter/src/compiler/diameter_codegen.erl
+++ b/lib/diameter/src/compiler/diameter_codegen.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2010-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -183,7 +183,7 @@ erl_forms(Mod, ParseD) ->
               f_enumerated_avp(ParseD),
               f_empty_value(ParseD),
               f_dict(ParseD),
-              {eof, ?LINE}]],
+              {eof, erl_anno:new(?LINE)}]],
 
     lists:append(Forms).
 
diff --git a/lib/diameter/src/compiler/diameter_forms.hrl b/lib/diameter/src/compiler/diameter_forms.hrl
index dd03401b9e..04d5834c88 100644
--- a/lib/diameter/src/compiler/diameter_forms.hrl
+++ b/lib/diameter/src/compiler/diameter_forms.hrl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2010-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -28,8 +28,10 @@
                     [],
                     [?APPLY(erlang, error, [?ATOM(badarg)])]}).
 
+-define(ANNO(L), erl_anno:new(L)).
+
 %% Form tag with line number.
--define(F(T), T, ?LINE).
+-define(F(T), T, ?ANNO(?LINE)).
 %% Yes, that's right. The replacement is to the first unmatched ')'.
 
 -define(attribute,    ?F(attribute)).
@@ -47,10 +49,10 @@
 -define(record_index, ?F(record_index)).
 -define(tuple,        ?F(tuple)).
 
--define(ATOM(T),      {atom, ?LINE, T}).
--define(INTEGER(N),   {integer, ?LINE, N}).
--define(VAR(V),       {var, ?LINE, V}).
--define(NIL,          {nil, ?LINE}).
+-define(ATOM(T),      {atom, ?ANNO(?LINE), T}).
+-define(INTEGER(N),   {integer, ?ANNO(?LINE), N}).
+-define(VAR(V),       {var, ?ANNO(?LINE), V}).
+-define(NIL,          {nil, ?ANNO(?LINE)}).
 
 -define(CALL(F,A),    {?call, ?ATOM(F), A}).
 -define(APPLY(M,F,A), {?call, {?remote, ?ATOM(M), ?ATOM(F)}, A}).
diff --git a/lib/diameter/test/diameter_capx_SUITE.erl b/lib/diameter/test/diameter_capx_SUITE.erl
index 02501ce779..1c0f25864c 100644
--- a/lib/diameter/test/diameter_capx_SUITE.erl
+++ b/lib/diameter/test/diameter_capx_SUITE.erl
@@ -378,10 +378,14 @@ dict(N) ->
 %% id's, failing with app_not_configured if it can't.
 load_dict(N) ->
     Mod = dict(N),
-    Forms = [{attribute, 1, module, Mod},
-             {attribute, 2, compile, [export_all]},
-             {function, 3, id, 0,
-              [{clause, 4, [], [], [{integer, 4, N}]}]}],
+    A1 = erl_anno:new(1),
+    A2 = erl_anno:new(2),
+    A3 = erl_anno:new(3),
+    A4 = erl_anno:new(4),
+    Forms = [{attribute, A1, module, Mod},
+             {attribute, A2, compile, [export_all]},
+             {function, A3, id, 0,
+              [{clause, A4, [], [], [{integer, A4, N}]}]}],
     {ok, Mod, Bin, []} = compile:forms(Forms, [return]),
     {module, Mod} = code:load_binary(Mod, Mod, Bin),
     N = Mod:id().
diff --git a/lib/edoc/doc/overview.edoc b/lib/edoc/doc/overview.edoc
index 2af425272e..3639bb43a5 100644
--- a/lib/edoc/doc/overview.edoc
+++ b/lib/edoc/doc/overview.edoc
@@ -76,11 +76,9 @@ The following are the main functions for running EDoc:
     <ul>
       <li>{@link edoc:application/2}: Creates documentation for a
 	  typical Erlang application.</li>
-      <li>{@link edoc:packages/2}: Creates documentation for one or
-	  more packages, automatically locating source files.</li>
       <li>{@link edoc:files/2}: Creates documentation for a
 	  specified set of source files.</li>
-      <li>{@link edoc:run/3}: General interface function; the common
+      <li>{@link edoc:run/2}: General interface function; the common
           back-end for the above functions. Options are documented here.</li>
     </ul>
 
@@ -184,7 +182,7 @@ The following tags can be used anywhere within a module:
       path (see {@link edoc:read_source/2}).</dd>
 
   <dt><a name="gtag-todo">`@todo' (or `@TODO')</a></dt>
-      <dd>Attaches a To-Do note to a function, module, package, or
+      <dd>Attaches a To-Do note to a function, module or
       overview-page. The content can be any XHTML text describing
       the issue, e.g.:
 ```%% @TODO Finish writing the documentation.'''
@@ -338,7 +336,7 @@ The following tags can be used before a module declaration:
 
   <dt><a name="mtag-since">`@since'</a></dt>
       <dd>Specifies when the module was introduced, with respect to
-      the application, package, release or distribution it is part
+      the application, release or distribution it is part
       of. The content can be arbitrary text.</dd>
 
   <dt><a name="mtag-version">`@version'</a></dt>
@@ -445,7 +443,6 @@ possible formats for references are:
 <table border="1" summary="reference syntax">
   <tr><th>Reference syntax</th><th>Example</th><th>Scope</th></tr>
   <tr><td>`Module'</td><td>{@link edoc_run}, `erl.lang.list'</td><td>Global</td></tr>
-  <tr><td>`Package.*'</td><td>`erl.lang.*'</td><td>Global</td></tr>
   <tr><td>`Function/Arity'</td><td>`file/2'</td><td>Within module</td></tr>
   <tr><td>`Module:Function/Arity'</td><td>{@link edoc:application/2}</td><td>Global</td></tr>
   <tr><td>`Type()'</td><td>`filename()'</td><td>Within module</td></tr>
@@ -531,7 +528,7 @@ after the empty line into separate paragraphs. For example:
 ```%% @doc This will all be part of the first paragraph.
    %% It can stretch over several lines and contain <em>any
    %% XHTML markup</em>.
-   %% 
+   %%
    %% This is the second paragraph. The above line is
    %% regarded as "empty" by EDoc, even though it ends with
    %% a space.'''
@@ -685,17 +682,6 @@ information. User-defined macros override predefined macros.
       <dd>Expands to the current date, as "<tt>Month Day Year</tt>",
       e.g. "{@date}".</dd>
 
-  <dt><a name="predefmacro-docRoot"><code>@{@docRoot}</code></a></dt>
-      <dd>Expands to the relative URL path (such as
-      `"../../.."') from the current page to the root
-      directory of the generated documentation. This can be used to
-      create XHTML references such as `<img
-      src="@{@docRoot}/images/logo.jpeg">' that are independent of how
-      deep down in a package structure they occur. If packages are not
-      used (i.e., if all modules are in the "empty" package),
-      <code>@{@docRoot}</code> will always resolve to the empty
-      string.</dd>
-
   <dt><a name="predefmacro-link"><code>@{@link <em>reference</em>.
 		    <em>description</em>}</code></a></dt>
       <dd>This creates a hypertext link; cf. the
@@ -710,9 +696,6 @@ information. User-defined macros override predefined macros.
       <dd>Expands to the name of the current module. Only defined when a
       module is being processed.</dd>
 
-  <dt><a name="predefmacro-package"><code>@{@package}</code></a></dt>
-      <dd>Expands to the name of the current package.</dd>
-
   <dt><a name="predefmacro-section"><code>@{@section
         <em>heading</em>}</code></a></dt>
       <dd>Expands to a hypertext link to the specified section heading;
diff --git a/lib/edoc/include/edoc_doclet.hrl b/lib/edoc/include/edoc_doclet.hrl
index 60ec7f44e4..ac6763fb33 100644
--- a/lib/edoc/include/edoc_doclet.hrl
+++ b/lib/edoc/include/edoc_doclet.hrl
@@ -1,6 +1,6 @@
 %% =====================================================================
 %% Header file for EDoc doclet modules.
-%% 
+%%
 %% Copyright (C) 2001-2004 Richard Carlsson
 %%
 %% This library is free software; you can redistribute it and/or modify
@@ -43,16 +43,11 @@
 
 %% @type doclet_gen() = #doclet_gen{sources = [string()],
 %%                                  app = no_app() | atom(),
-%%                                  packages = [atom()],
-%%                                  modules = [atom()],
-%%                                  modules = [atom()],
-%%                                  filemap = function()}
+%%                                  modules = [atom()]}
 
 -record(doclet_gen, {sources = [],
 		     app = ?NO_APP,
-		     packages = [],
-		     modules = [],
-		     filemap
+		     modules = []
 		    }).
 
 %% @type doclet_toc() = #doclet_gen{paths = [string()],
diff --git a/lib/edoc/priv/edoc.dtd b/lib/edoc/priv/edoc.dtd
index ba4ac0db28..4278a9e643 100644
--- a/lib/edoc/priv/edoc.dtd
+++ b/lib/edoc/priv/edoc.dtd
@@ -2,20 +2,13 @@
 <!-- EDoc DTD Version 0.3 -->
 
 <!ELEMENT overview (title, description?, author*, copyright?, version?,
-                    since?, see*, reference*, todo?, packages, modules)>
+                    since?, see*, reference*, todo?, modules)>
 <!ATTLIST overview
   root CDATA #IMPLIED
   encoding CDATA #IMPLIED>
 
 <!ELEMENT title (#PCDATA)>
 
-<!ELEMENT package (description?, author*, copyright?, version?,
-		   since?, deprecated?, see*, reference*, todo?,
-		   modules)>
-<!ATTLIST package
-  name CDATA #REQUIRED
-  root CDATA #IMPLIED>
-
 <!ELEMENT modules (module+)>
 
 
diff --git a/lib/edoc/priv/stylesheet.css b/lib/edoc/priv/stylesheet.css
index e426a90483..ab170c091f 100644
--- a/lib/edoc/priv/stylesheet.css
+++ b/lib/edoc/priv/stylesheet.css
@@ -27,10 +27,10 @@ div.spec {
  	margin-left: 2em;
 	background-color: #eeeeee;
 }
-a.module,a.package {
+a.module {
 	text-decoration:none
 }
-a.module:hover,a.package:hover {
+a.module:hover {
 	background-color: #eeeeee;
 }
 ul.definitions {
diff --git a/lib/edoc/src/edoc.app.src b/lib/edoc/src/edoc.app.src
index 9e1155d3e8..e4b9040c78 100644
--- a/lib/edoc/src/edoc.app.src
+++ b/lib/edoc/src/edoc.app.src
@@ -23,5 +23,5 @@
   {registered,[]},
   {applications, [compiler,kernel,stdlib,syntax_tools]},
   {env, []},
-  {runtime_dependencies, ["xmerl-1.3.7","syntax_tools-1.6.14","stdlib-2.0",
+  {runtime_dependencies, ["xmerl-1.3.7","syntax_tools-1.6.14","stdlib-2.5",
 			  "kernel-3.0","inets-5.10","erts-6.0"]}]}.
diff --git a/lib/edoc/src/edoc.erl b/lib/edoc/src/edoc.erl
index 983f04e8b6..90f1fc3071 100644
--- a/lib/edoc/src/edoc.erl
+++ b/lib/edoc/src/edoc.erl
@@ -24,12 +24,11 @@
 %% TODO: option for ignoring functions matching some pattern ('..._test_'/0)
 %% TODO: @private_type tag, opaque unless generating private docs?
 %% TODO: document the record type syntax
-%% TODO: some 'skip' option for ignoring particular modules/packages?
-%% TODO: intermediate-level packages: document even if no local sources.
+%% TODO: some 'skip' option for ignoring particular modules?
 %% TODO: multiline comment support (needs modified comment representation)
 %% TODO: config-file for default settings
 %% TODO: config: locations of all local docdirs; generate local doc-index page
-%% TODO: config: URL:s of offline packages/apps
+%% TODO: config: URL:s of offline apps
 %% TODO: config: default stylesheet
 %% TODO: config: default header/footer, etc.
 %% TODO: offline linkage
@@ -45,10 +44,10 @@
 
 -module(edoc).
 
--export([packages/1, packages/2, files/1, files/2,
+-export([files/1, files/2,
 	 application/1, application/2, application/3,
 	 toc/1, toc/2, toc/3,
-	 run/3,
+	 run/2,
 	 file/1, file/2,
 	 read/1, read/2,
 	 layout/1, layout/2,
@@ -68,15 +67,15 @@
 file(Name) ->
     file(Name, []).
 
-%% @spec file(filename(), proplist()) -> ok 
+%% @spec file(filename(), proplist()) -> ok
 %%
 %% @type filename() = //kernel/file:filename()
 %% @type proplist() = [term()]
 %%
 %% @deprecated This is part of the old interface to EDoc and is mainly
 %% kept for backwards compatibility. The preferred way of generating
-%% documentation is through one of the functions {@link application/2},
-%% {@link packages/2} and {@link files/2}.
+%% documentation is through one of the functions {@link application/2}
+%% and {@link files/2}.
 %%
 %% @doc Reads a source code file and outputs formatted documentation to
 %% a corresponding file.
@@ -121,44 +120,24 @@ file(Name, Options) ->
 				 ?DEFAULT_FILE_SUFFIX),
     Dir = proplists:get_value(dir, Options, filename:dirname(Name)),
     Encoding = [{encoding, edoc_lib:read_encoding(Name, [])}],
-    edoc_lib:write_file(Text, Dir, BaseName ++ Suffix, '', Encoding).
+    edoc_lib:write_file(Text, Dir, BaseName ++ Suffix, Encoding).
 
 
-%% TODO: better documentation of files/1/2, packages/1/2, application/1/2/3
+%% TODO: better documentation of files/1/2, application/1/2/3
 
-%% @spec (Files::[filename() | {package(), [filename()]}]) -> ok
-%% @equiv packages(Packages, [])
+%% @spec (Files::[filename()]) -> ok
 
 files(Files) ->
     files(Files, []).
 
-%% @spec (Files::[filename() | {package(), [filename()]}],
+%% @spec (Files::[filename()],
 %%        Options::proplist()) -> ok
-%% @doc Runs EDoc on a given set of source files. See {@link run/3} for
+%% @doc Runs EDoc on a given set of source files. See {@link run/2} for
 %% details, including options.
 %% @equiv run([], Files, Options)
 
 files(Files, Options) ->
-    run([], Files, Options).
-
-%% @spec (Packages::[package()]) -> ok
-%% @equiv packages(Packages, [])
-
-packages(Packages) ->
-    packages(Packages, []).
-
-%% @spec (Packages::[package()], Options::proplist()) -> ok
-%% @type package() = atom() | string()
-%%
-%% @doc Runs EDoc on a set of packages. The `source_path' option is used
-%% to locate the files; see {@link run/3} for details, including
-%% options. This function automatically appends the current directory to
-%% the source path.
-%%
-%% @equiv run(Packages, [], Options)
-
-packages(Packages, Options) ->
-    run(Packages, [], Options  ++ [{source_path, [?CURRENT_DIR]}]).
+    run(Files, Options).
 
 %% @spec (Application::atom()) -> ok
 %% @equiv application(Application, [])
@@ -194,7 +173,7 @@ application(App, Options) when is_atom(App) ->
 %%   subdirectory, if it exists, or otherwise in the application
 %%   directory itself.
 %%   </li>
-%%   <li>The {@link run/3. `subpackages'} option is turned on. All found
+%%   <li>The {@link run/2. `subpackages'} option is turned on. All found
 %%   source files will be processed.
 %%   </li>
 %%   <li>The `include' subdirectory is automatically added to the
@@ -203,7 +182,7 @@ application(App, Options) when is_atom(App) ->
 %%   </li>
 %% </ul>
 %%
-%% See {@link run/3} for details, including options.
+%% See {@link run/2} for details, including options.
 %%
 %% @see application/2
 
@@ -219,7 +198,7 @@ application(App, Dir, Options) when is_atom(App) ->
 		       {includes, [filename:join(Dir, "include")]}],
     Opts1 = set_app_default(App, Dir, Opts),
     %% Recursively document all subpackages of '' - i.e., everything.
-    run([''], [], [{application, App} | Opts1]).
+    run([], [{application, App} | Opts1]).
 
 %% Try to set up a default application base URI in a smart way if the
 %% user has not specified it explicitly.
@@ -240,31 +219,20 @@ set_app_default(App, Dir0, Opts) ->
 	    Opts
     end.
 
-%% If no source files are found for a (specified) package, no package
-%% documentation will be generated either (even if there is a
-%% package-documentation file). This is the way it should be. For
-%% specified files, use empty package (unless otherwise specified). The
-%% assumed package is always used for creating the output. If the actual
-%% module or package of the source differs from the assumption gathered
-%% from the path and file name, a warning should be issued (since links
-%% are likely to be incorrect).
-
 opt_defaults() ->
-    [packages].
+    [].
 
 opt_negations() ->
     [{no_preprocess, preprocess},
      {no_subpackages, subpackages},
-     {no_report_missing_types, report_missing_types},
-     {no_packages, packages}].
+     {no_report_missing_types, report_missing_types}].
 
-%% @spec run(Packages::[package()],
-%%           Files::[filename() | {package(), [filename()]}],
+%% @spec run(Files::[filename()],
 %%           Options::proplist()) -> ok
-%% @doc Runs EDoc on a given set of source files and/or packages. Note
+%% @doc Runs EDoc on a given set of source files. Note
 %% that the doclet plugin module has its own particular options; see the
 %% `doclet' option below.
-%% 
+%%
 %% Also see {@link layout/2} for layout-related options, and
 %% {@link get_doc/2} for options related to reading source
 %% files.
@@ -298,11 +266,6 @@ opt_negations() ->
 %%      The default doclet module is {@link edoc_doclet}; see {@link
 %%      edoc_doclet:run/2} for doclet-specific options.
 %%  </dd>
-%%  <dt>{@type {exclude_packages, [package()]@}}
-%%  </dt>
-%%  <dd>Lists packages to be excluded from the documentation. Typically
-%%      used in conjunction with the `subpackages' option.
-%%  </dd>
 %%  <dt>{@type {file_suffix, string()@}}
 %%  </dt>
 %%  <dd>Specifies the suffix used for output files. The default value is
@@ -314,22 +277,6 @@ opt_negations() ->
 %%      target directory will be ignored and overwritten. The default
 %%      value is `false'.
 %%  </dd>
-%%  <dt>{@type {packages, boolean()@}}
-%%  </dt>
-%%  <dd>If the value is `true', it it assumed that packages (module
-%%      namespaces) are being used, and that the source code directory
-%%      structure reflects this. The default value is `true'. (Usually,
-%%      this does the right thing even if all the modules belong to the
-%%      top-level "empty" package.) `no_packages' is an alias for
-%%      `{packages, false}'. See the `subpackages' option below for
-%%      further details.
-%%
-%%      If the source code is organized in a hierarchy of
-%%      subdirectories although it does not use packages, use
-%%      `no_packages' together with the recursive-search `subpackages'
-%%      option (on by default) to automatically generate documentation
-%%      for all the modules.
-%%  </dd>
 %%  <dt>{@type {source_path, [filename()]@}}
 %%  </dt>
 %%  <dd>Specifies a list of file system paths used to locate the source
@@ -345,7 +292,7 @@ opt_negations() ->
 %%  <dd>If the value is `true', all subpackages of specified packages
 %%      will also be included in the documentation. The default value is
 %%      `false'. `no_subpackages' is an alias for `{subpackages,
-%%      false}'. See also the `exclude_packages' option.
+%%      false}'.
 %%
 %%      Subpackage source files are found by recursively searching
 %%      for source code files in subdirectories of the known source code
@@ -358,38 +305,31 @@ opt_negations() ->
 %% </dl>
 %%
 %% @see files/2
-%% @see packages/2
 %% @see application/2
 
 %% NEW-OPTIONS: source_path, application
 %% INHERIT-OPTIONS: init_context/1
 %% INHERIT-OPTIONS: expand_sources/2
 %% INHERIT-OPTIONS: target_dir_info/5
-%% INHERIT-OPTIONS: edoc_lib:find_sources/3
+%% INHERIT-OPTIONS: edoc_lib:find_sources/2
 %% INHERIT-OPTIONS: edoc_lib:run_doclet/2
-%% INHERIT-OPTIONS: edoc_lib:get_doc_env/4
+%% INHERIT-OPTIONS: edoc_lib:get_doc_env/3
 
-run(Packages, Files, Opts0) ->
+run(Files, Opts0) ->
     Opts = expand_opts(Opts0),
     Ctxt = init_context(Opts),
     Dir = Ctxt#context.dir,
     Path = proplists:append_values(source_path, Opts),
-    Ss = sources(Path, Packages, Opts),
+    Ss = sources(Path, Opts),
     {Ss1, Ms} = expand_sources(expand_files(Files) ++ Ss, Opts),
-    Ps = [P || {_, P, _, _} <- Ss1],
     App = proplists:get_value(application, Opts, ?NO_APP),
-    {App1, Ps1, Ms1} = target_dir_info(Dir, App, Ps, Ms, Opts),
-    %% The "empty package" is never included in the list of packages.
-    Ps2 = edoc_lib:unique(lists:sort(Ps1)) -- [''],
+    {App1, Ms1} = target_dir_info(Dir, App, Ms, Opts),
     Ms2 = edoc_lib:unique(lists:sort(Ms1)),
-    Fs = package_files(Path, Ps2),
-    Env = edoc_lib:get_doc_env(App1, Ps2, Ms2, Opts),
+    Env = edoc_lib:get_doc_env(App1, Ms2, Opts),
     Ctxt1 = Ctxt#context{env = Env},
     Cmd = #doclet_gen{sources = Ss1,
 		      app = App1,
-		      packages = Ps2,
-		      modules = Ms2,
-		      filemap = Fs
+		      modules = Ms2
 		     },
     F = fun (M) ->
 		M:run(Cmd, Ctxt1)
@@ -401,42 +341,22 @@ expand_opts(Opts0) ->
 				   Opts0 ++ opt_defaults()).
 
 %% NEW-OPTIONS: dir
-%% DEFER-OPTIONS: run/3
+%% DEFER-OPTIONS: run/2
 
 init_context(Opts) ->
     #context{dir = proplists:get_value(dir, Opts, ?CURRENT_DIR),
 	     opts = Opts
 	    }.
 
-%% INHERIT-OPTIONS: edoc_lib:find_sources/3
-
-sources(Path, Packages, Opts) ->
-    lists:foldl(fun (P, Xs) ->
-			edoc_lib:find_sources(Path, P, Opts) ++ Xs
-		end,
-		[], Packages).
-
-package_files(Path, Packages) ->
-    Name = ?PACKAGE_FILE,    % this is hard-coded for now
-    D = lists:foldl(fun (P, D) ->
-			    F = edoc_lib:find_file(Path, P, Name),
-			    dict:store(P, F, D)
-		    end,
-		    dict:new(), Packages),
-    fun (P) ->
-	    case dict:find(P, D) of
-		{ok, F} -> F;
-		error -> ""
-	    end
-    end.
+%% INHERIT-OPTIONS: edoc_lib:find_sources/2
+
+sources(Path, Opts) ->
+	edoc_lib:find_sources(Path, Opts).
 
 %% Expand user-specified sets of files.
 
-expand_files([{P, Fs1} | Fs]) ->
-    [{P, filename:basename(F), filename:dirname(F)} || F <- Fs1]
-	++ expand_files(Fs);
 expand_files([F | Fs]) ->
-    [{'', filename:basename(F), filename:dirname(F)} |
+    [{filename:basename(F), filename:dirname(F)} |
      expand_files(Fs)];
 expand_files([]) ->
     [].
@@ -444,26 +364,23 @@ expand_files([]) ->
 %% Create the (assumed) full module names. Keep only the first source
 %% for each module, but preserve the order of the list.
 
-%% NEW-OPTIONS: source_suffix, packages
-%% DEFER-OPTIONS: run/3
+%% NEW-OPTIONS: source_suffix
+%% DEFER-OPTIONS: run/2
 
 expand_sources(Ss, Opts) ->
     Suffix = proplists:get_value(source_suffix, Opts,
 				 ?DEFAULT_SOURCE_SUFFIX),
-    Ss1 = case proplists:get_bool(packages, Opts) of
-	      true -> Ss;
-	      false -> [{'',F,D} || {_P,F,D} <- Ss]
-	  end,
+    Ss1 = [{F,D} || {F,D} <- Ss],
     expand_sources(Ss1, Suffix, sets:new(), [], []).
 
-expand_sources([{'', F, D} | Fs], Suffix, S, As, Ms) ->
+expand_sources([{F, D} | Fs], Suffix, S, As, Ms) ->
     M = list_to_atom(filename:rootname(F, Suffix)),
     case sets:is_element(M, S) of
 	true ->
 	    expand_sources(Fs, Suffix, S, As, Ms);
 	false ->
 	    S1 = sets:add_element(M, S),
-	    expand_sources(Fs, Suffix, S1, [{M, '', F, D} | As],
+	    expand_sources(Fs, Suffix, S1, [{M, F, D} | As],
 			   [M | Ms])
     end;
 expand_sources([], _Suffix, _S, As, Ms) ->
@@ -471,16 +388,15 @@ expand_sources([], _Suffix, _S, As, Ms) ->
 
 %% NEW-OPTIONS: new
 
-target_dir_info(Dir, App, Ps, Ms, Opts) ->
+target_dir_info(Dir, App, Ms, Opts) ->
     case proplists:get_bool(new, Opts) of
 	true ->
-	    {App, Ps, Ms};
+	    {App, Ms};
 	false ->
-	    {App1, Ps1, Ms1} = edoc_lib:read_info_file(Dir),
+	    {App1, Ms1} = edoc_lib:read_info_file(Dir),
 	    {if App == ?NO_APP -> App1;
 		true -> App
 	     end,
-	     Ps ++ Ps1,
 	     Ms ++ Ms1}
     end.
 
@@ -505,12 +421,12 @@ toc(Dir, Opts) ->
 
 %% INHERIT-OPTIONS: init_context/1
 %% INHERIT-OPTIONS: edoc_lib:run_doclet/2
-%% INHERIT-OPTIONS: edoc_lib:get_doc_env/4
+%% INHERIT-OPTIONS: edoc_lib:get_doc_env/3
 
 toc(Dir, Paths, Opts0) ->
     Opts = expand_opts(Opts0 ++ [{dir, Dir}]),
     Ctxt = init_context(Opts),
-    Env = edoc_lib:get_doc_env('', [], [], Opts),
+    Env = edoc_lib:get_doc_env('', [], Opts),
     Ctxt1 = Ctxt#context{env = Env},
     F = fun (M) ->
 		M:run(#doclet_toc{paths=Paths}, Ctxt1)
@@ -562,7 +478,7 @@ layout(Doc) ->
 %% </dl>
 %%
 %% @see layout/1
-%% @see run/3
+%% @see run/2
 %% @see read/2
 %% @see file/2
 
@@ -773,13 +689,12 @@ scan_and_parse(Epp) ->
 
 fix_last_line(Toks0) ->
     Toks1 = lists:reverse(Toks0),
-    {line, LastLine} = erl_scan:token_info(hd(Toks1), line),
+    LastLine = erl_scan:line(hd(Toks1)),
     fll(Toks1, LastLine, []).
 
-fll([{Category, Attributes0, Symbol} | L], LastLine, Ts) ->
-    F = fun(_OldLine) -> LastLine end,
-    Attributes = erl_scan:set_attribute(line, Attributes0, F),
-    lists:reverse(L, [{Category, Attributes, Symbol} | Ts]);
+fll([{Category, Anno0, Symbol} | L], LastLine, Ts) ->
+    Anno = erl_anno:set_line(LastLine, Anno0),
+    lists:reverse(L, [{Category, Anno, Symbol} | Ts]);
 fll([T | L], LastLine, Ts) ->
     fll(L, LastLine, [T | Ts]);
 fll(L, _LastLine, Ts) ->
@@ -853,16 +768,16 @@ get_doc(File) ->
 %% </dl>
 %%
 %% See {@link read_source/2}, {@link read_comments/2} and {@link
-%% edoc_lib:get_doc_env/4} for further options.
+%% edoc_lib:get_doc_env/3} for further options.
 %%
 %% @see get_doc/3
-%% @see run/3
+%% @see run/2
 %% @see edoc_extract:source/5
 %% @see read/2
 %% @see layout/2
 
 %% INHERIT-OPTIONS: get_doc/3
-%% INHERIT-OPTIONS: edoc_lib:get_doc_env/4
+%% INHERIT-OPTIONS: edoc_lib:get_doc_env/3
 
 get_doc(File, Opts) ->
     Env = edoc_lib:get_doc_env(Opts),
@@ -874,7 +789,7 @@ get_doc(File, Opts) ->
 %%
 %% @doc Like {@link get_doc/2}, but for a given environment
 %% parameter. `Env' is an environment created by {@link
-%% edoc_lib:get_doc_env/4}.
+%% edoc_lib:get_doc_env/3}.
 
 %% INHERIT-OPTIONS: read_source/2, read_comments/2, edoc_extract:source/5
 %% DEFER-OPTIONS: get_doc/2
diff --git a/lib/edoc/src/edoc.hrl b/lib/edoc/src/edoc.hrl
index 44c5d6fef4..5b0fb68cf9 100644
--- a/lib/edoc/src/edoc.hrl
+++ b/lib/edoc/src/edoc.hrl
@@ -1,6 +1,6 @@
 %% =====================================================================
 %% Header file for EDoc
-%% 
+%%
 %% Copyright (C) 2001-2004 Richard Carlsson
 %%
 %% This library is free software; you can redistribute it and/or modify
@@ -25,9 +25,7 @@
 
 -define(APPLICATION, edoc).
 -define(INFO_FILE, "edoc-info").
--define(PACKAGE_FILE, "package.edoc").
 -define(OVERVIEW_FILE, "overview.edoc").
--define(PACKAGE_SUMMARY, "package-summary").
 -define(DEFAULT_SOURCE_SUFFIX, ".erl").
 -define(DEFAULT_FILE_SUFFIX, ".html").
 -define(DEFAULT_DOCLET, edoc_doclet).
@@ -65,13 +63,10 @@
 %% Environment for generating documentation data
 
 -record(env, {module = [],
-	      package = [],
 	      root = "",
 	      file_suffix,
-	      package_summary,
 	      apps,
 	      modules,
-	      packages,
 	      app_default,
 	      macros = [],
 	      includes = []
diff --git a/lib/edoc/src/edoc_data.erl b/lib/edoc/src/edoc_data.erl
index f88ba05f4b..b797d74a71 100644
--- a/lib/edoc/src/edoc_data.erl
+++ b/lib/edoc/src/edoc_data.erl
@@ -26,7 +26,7 @@
 
 -module(edoc_data).
 
--export([module/4, package/4, overview/4, type/2]).
+-export([module/4, overview/4, type/2]).
 
 -export([hidden_filter/2, get_all_tags/1]).
 
@@ -173,21 +173,34 @@ callbacks(Es, Module, Env, Opts) ->
 	lists:keymember(callback, 1, Module#module.attributes)
     of
 	true ->
-	    try (Module#module.name):behaviour_info(callbacks) of
-		Fs ->
-		    Fs1 = [{F,A} || {F,A} <- Fs, is_atom(F), is_integer(A)],
-		    if Fs1 =:= [] ->
-			    [];
-		       true ->
-			    [{callbacks,
-			      [callback(F, Env, Opts) || F <- Fs1]}]
-		    end
-	    catch
-		_:_ -> []
-	    end;
+            M = Module#module.name,
+            Fs = get_callback_functions(M, callbacks),
+            Os1 = get_callback_functions(M, optional_callbacks),
+            Fs1 = [FA || FA <- Fs, not lists:member(FA, Os1)],
+            Req = if Fs1 =:= [] ->
+                          [];
+                     true ->
+                          [{callbacks,
+                            [callback(FA, Env, Opts) || FA <- Fs1]}]
+                  end,
+            Opt = if Os1 =:= [] ->
+                          [];
+                     true ->
+                          [{optional_callbacks,
+                            [callback(FA, Env, Opts) || FA <- Os1]}]
+                  end,
+            Req ++ Opt;
 	false -> []
     end.
 
+get_callback_functions(M, Callbacks) ->
+    try
+        [FA || {F, A} = FA <- M:behaviour_info(Callbacks),
+               is_atom(F), is_integer(A), A >= 0]
+    catch
+        _:_ -> []
+    end.
+
 %% <!ELEMENT callback EMPTY>
 %% <!ATTLIST callback
 %%   name CDATA #REQUIRED
@@ -497,41 +510,14 @@ get_tags(_, []) -> [].
 type(T, Env) ->
     xmerl_lib:expand_element({type, [edoc_types:to_xml(T, Env)]}).
 
-%% <!ELEMENT package (description?, author*, copyright?, version?,
-%% 		   since?, deprecated?, see*, reference*, todo?,
-%% 		   modules)>
-%% <!ATTLIST package
-%%   name CDATA #REQUIRED
-%%   root CDATA #IMPLIED>
-%% <!ELEMENT modules (module+)>
-
-package(Package, Tags, Env, Opts) ->
-    Env1 = Env#env{package = Package,
-		   root = edoc_refs:relative_package_path('', Package)},
-    xmerl_lib:expand_element(package_1(Package, Tags, Env1, Opts)).
-
-package_1(Package, Tags, Env, Opts) ->
-    {package, [{root, Env#env.root}],
-     ([{packageName, [atom_to_list(Package)]}]
-      ++ get_doc(Tags)
-      ++ authors(Tags)
-      ++ get_copyright(Tags)
-      ++ get_version(Tags)
-      ++ get_since(Tags)
-      ++ get_deprecated(Tags)
-      ++ sees(Tags, Env)
-      ++ references(Tags)
-      ++ todos(Tags, Opts))
-    }.
-
 %% <!ELEMENT overview (title, description?, author*, copyright?, version?,
-%%                     since?, see*, reference*, todo?, packages, modules)>
+%%                     since?, see*, reference*, todo?, modules)>
 %% <!ATTLIST overview
 %%   root CDATA #IMPLIED>
 %% <!ELEMENT title (#PCDATA)>
 
 overview(Title, Tags, Env, Opts) ->
-    Env1 = Env#env{package = '',
+    Env1 = Env#env{
 		   root = ""},
     xmerl_lib:expand_element(overview_1(Title, Tags, Env1, Opts)).
 
diff --git a/lib/edoc/src/edoc_doclet.erl b/lib/edoc/src/edoc_doclet.erl
index 5653b5894b..5961ca8cc0 100644
--- a/lib/edoc/src/edoc_doclet.erl
+++ b/lib/edoc/src/edoc_doclet.erl
@@ -42,9 +42,7 @@
 -define(DEFAULT_FILE_SUFFIX, ".html").
 -define(INDEX_FILE, "index.html").
 -define(OVERVIEW_FILE, "overview.edoc").
--define(PACKAGE_SUMMARY, "package-summary.html").
 -define(OVERVIEW_SUMMARY, "overview-summary.html").
--define(PACKAGES_FRAME, "packages-frame.html").
 -define(MODULES_FRAME, "modules-frame.html").
 -define(STYLESHEET, "stylesheet.css").
 -define(IMAGE, "erlang.png").
@@ -52,11 +50,10 @@
 
 -include_lib("xmerl/include/xmerl.hrl").
 
-%% Sources is the list of inputs in the order they were found.  Packages
-%% and Modules are sorted lists of atoms without duplicates. (They
+%% Sources is the list of inputs in the order they were found.
+%% Modules are sorted lists of atoms without duplicates. (They
 %% usually include the data from the edoc-info file in the target
-%% directory, if it exists.) Note that the "empty package" is never
-%% included in Packages!
+%% directory, if it exists.)
 
 %% @spec (Command::doclet_gen() | doclet_toc(), edoc_context()) -> ok
 %% @doc Main doclet entry point. See the file <a
@@ -117,14 +114,12 @@
 run(#doclet_gen{}=Cmd, Ctxt) ->
     gen(Cmd#doclet_gen.sources,
 	Cmd#doclet_gen.app,
-	Cmd#doclet_gen.packages,
 	Cmd#doclet_gen.modules,
-	Cmd#doclet_gen.filemap,
 	Ctxt);
 run(#doclet_toc{}=Cmd, Ctxt) ->
     toc(Cmd#doclet_toc.paths, Ctxt).
 
-gen(Sources, App, Packages, Modules, FileMap, Ctxt) ->
+gen(Sources, App, Modules, Ctxt) ->
     Dir = Ctxt#context.dir,
     Env = Ctxt#context.env,
     Options = Ctxt#context.opts,
@@ -132,11 +127,9 @@ gen(Sources, App, Packages, Modules, FileMap, Ctxt) ->
     CSS = stylesheet(Options),
     {Modules1, Error} = sources(Sources, Dir, Modules, Env, Options),
     modules_frame(Dir, Modules1, Title, CSS),
-    packages(Packages, Dir, FileMap, Env, Options),
-    packages_frame(Dir, Packages, Title, CSS),
     overview(Dir, Title, Env, Options),
-    index_file(Dir, length(Packages) > 1, Title),
-    edoc_lib:write_info_file(App, Packages, Modules1, Dir),
+    index_file(Dir, Title),
+    edoc_lib:write_info_file(App, Modules1, Dir),
     copy_stylesheet(Dir, Options),
     copy_image(Dir),
     %% handle postponed error during processing of source files
@@ -182,19 +175,19 @@ sources(Sources, Dir, Modules, Env, Options) ->
 %% set if it was successful. Errors are just flagged at this stage,
 %% allowing all source files to be processed even if some of them fail.
 
-source({M, P, Name, Path}, Dir, Suffix, Env, Set, Private, Hidden,
+source({M, Name, Path}, Dir, Suffix, Env, Set, Private, Hidden,
        Error, Options) ->
     File = filename:join(Path, Name),
     case catch {ok, edoc:get_doc(File, Env, Options)} of
 	{ok, {Module, Doc}} ->
-	    check_name(Module, M, P, File),
+	    check_name(Module, M, File),
 	    case ((not is_private(Doc)) orelse Private)
 		andalso ((not is_hidden(Doc)) orelse Hidden) of
 		true ->
 		    Text = edoc:layout(Doc, Options),
 		    Name1 = atom_to_list(M) ++ Suffix,
                     Encoding = [{encoding,encoding(Doc)}],
-		    edoc_lib:write_file(Text, Dir, Name1, P, Encoding),
+		    edoc_lib:write_file(Text, Dir, Name1, Encoding),
 		    {sets:add_element(Module, Set), Error};
 		false ->
 		    {Set, Error}
@@ -204,8 +197,7 @@ source({M, P, Name, Path}, Dir, Suffix, Env, Set, Private, Hidden,
 	    {Set, true}
     end.
 
-check_name(M, M0, P0, File) ->
-    P = '',
+check_name(M, M0, File) ->
     N = M,
     N0 = M0,
     case N of
@@ -222,47 +214,12 @@ check_name(M, M0, P0, File) ->
 		    ok
 	    end
     end,
-    if P =/= P0 ->
-	    warning("file '~ts' belongs to package '~s', not '~s'.",
-		    [File, P, P0]);
-       true ->
-	    ok
-    end.
-
-
-%% Generating the summary files for packages.
-
-%% INHERIT-OPTIONS: read_file/4
-%% INHERIT-OPTIONS: edoc_lib:run_layout/2
-
-packages(Packages, Dir, FileMap, Env, Options) ->
-    lists:foreach(fun (P) ->
-			  package(P, Dir, FileMap, Env, Options)
-		  end,
-		  Packages).
-
-package(P, Dir, FileMap, Env, Opts) ->
-    Tags = case FileMap(P) of
-	       "" ->
-		   [];
-	       File ->
-		   read_file(File, package, Env, Opts)
-	   end,
-    Data = edoc_data:package(P, Tags, Env, Opts),
-    F = fun (M) ->
-		M:package(Data, Opts)
-	end,
-    Text = edoc_lib:run_layout(F, Opts),
-    edoc_lib:write_file(Text, Dir, ?PACKAGE_SUMMARY, P).
-
+	ok.
 
 %% Creating an index file, with some frames optional.
 %% TODO: get rid of frames, or change doctype to Frameset
 
-index_file(Dir, Packages, Title) ->
-    Frame1 = {frame, [{src,?PACKAGES_FRAME},
-		      {name,"packagesFrame"},{title,""}],
-	      []},
+index_file(Dir, Title) ->
     Frame2 = {frame, [{src,?MODULES_FRAME},
 		      {name,"modulesFrame"},{title,""}],
 	      []},
@@ -270,16 +227,7 @@ index_file(Dir, Packages, Title) ->
 		      {name,"overviewFrame"},{title,""}],
 	      []},
     Frameset = {frameset, [{cols,"20%,80%"}],
-		case Packages of
-		    true ->
-			[?NL,
-			 {frameset, [{rows,"30%,70%"}],
-			  [?NL, Frame1, ?NL, Frame2, ?NL]}
-			];
-		    false ->
- 			[?NL, Frame2, ?NL]
-		end
-		++ [?NL, Frame3, ?NL,
+    	[?NL, Frame2, ?NL, ?NL, Frame3, ?NL,
 		    {noframes,
 		     [?NL,
 		      {h2, ["This page uses frames"]},
@@ -296,24 +244,6 @@ index_file(Dir, Packages, Title) ->
     Text = xmerl:export_simple([XML], xmerl_html, []),
     edoc_lib:write_file(Text, Dir, ?INDEX_FILE).
 
-packages_frame(Dir, Ps, Title, CSS) ->
-    Body = [?NL,
-	    {h2, [{class, "indextitle"}], ["Packages"]},
-	    ?NL,
-	    {table, [{width, "100%"}, {border, 0},
-		     {summary, "list of packages"}],
-	     lists:concat(
-	       [[?NL,
-		 {tr, [{td, [], [{a, [{href, package_ref(P)},
-				      {target,"overviewFrame"},
-				      {class, "package"}],
-				  [atom_to_list(P)]}]}]}]
-		|| P <- Ps])},
-	    ?NL],
-    XML = xhtml(Title, CSS, Body),
-    Text = xmerl:export_simple([XML], xmerl_html, []),
-    edoc_lib:write_file(Text, Dir, ?PACKAGES_FRAME).
-
 modules_frame(Dir, Ms, Title, CSS) ->
     Body = [?NL,
 	    {h2, [{class, "indextitle"}], ["Modules"]},
@@ -334,11 +264,7 @@ modules_frame(Dir, Ms, Title, CSS) ->
     edoc_lib:write_file(Text, Dir, ?MODULES_FRAME).
 
 module_ref(M) ->
-    edoc_refs:relative_package_path(M, '') ++ ?DEFAULT_FILE_SUFFIX.
-
-package_ref(P) ->
-    edoc_lib:join_uri(edoc_refs:relative_package_path(P, ''),
-		      ?PACKAGE_SUMMARY).
+    atom_to_list(M) ++ ?DEFAULT_FILE_SUFFIX.
 
 xhtml(Title, CSS, Content) ->
     xhtml_1(Title, CSS, {body, [{bgcolor, "white"}], Content}).
@@ -372,7 +298,7 @@ overview(Dir, Title, Env, Opts) ->
 	end,
     Text = edoc_lib:run_layout(F, Opts),
     EncOpts = [{encoding,Encoding}],
-    edoc_lib:write_file(Text, Dir, ?OVERVIEW_SUMMARY, '', EncOpts).
+    edoc_lib:write_file(Text, Dir, ?OVERVIEW_SUMMARY, EncOpts).
 
 copy_image(Dir) ->
     case code:priv_dir(?EDOC_APP) of
@@ -505,7 +431,7 @@ app_index_file(Paths, Dir, Env, Options) ->
 %    Priv = proplists:get_bool(private, Options),
     CSS = stylesheet(Options),
     Apps1 = [{filename:dirname(A),filename:basename(A)} || A <- Paths],
-    index_file(Dir, false, Title),
+    index_file(Dir, Title),
     application_frame(Dir, Apps1, Title, CSS),
     modules_frame(Dir, [], Title, CSS),
     overview(Dir, Title, Env, Options),
diff --git a/lib/edoc/src/edoc_extract.erl b/lib/edoc/src/edoc_extract.erl
index 67a95e80aa..758750083d 100644
--- a/lib/edoc/src/edoc_extract.erl
+++ b/lib/edoc/src/edoc_extract.erl
@@ -91,7 +91,7 @@ source(Forms, Comments, File, Env, Opts) ->
 %% type `form_list', or a list of syntax trees representing
 %% "program forms" (cf. {@link edoc:read_source/2}.
 %% `Env' is an environment created by {@link
-%% edoc_lib:get_doc_env/4}. The `File' argument is used for
+%% edoc_lib:get_doc_env/3}. The `File' argument is used for
 %% error reporting and output file name generation only.
 %%
 %% See {@link edoc:get_doc/2} for descriptions of the `def',
@@ -121,10 +121,8 @@ source1(Tree, File0, Env, Opts, TypeDocs) ->
     Module = get_module_info(Tree, File),
     {Header, Footer, Entries} = collect(Forms, Module),
     Name = Module#module.name,
-    Package = '',
     Env1 = Env#env{module = Name,
-		   package = Package,
-		   root = edoc_refs:relative_package_path('', Package)},
+		   root = ""},
     Env2 = add_macro_defs(module_macros(Env1), Opts, Env1),
     Entries1 = get_tags([Header, Footer | Entries], Env2, File, TypeDocs),
     Entries2 = edoc_specs:add_data(Entries1, Opts, File, Module),
@@ -218,13 +216,13 @@ add_macro_defs(Defs0, Opts, Env) ->
 
 %% @spec file(File::filename(), Context, Env::edoc_env(),
 %%            Options::proplist()) -> {ok, Tags} | {error, Reason}
-%%   Context = overview | package
+%%   Context = overview
 %%   Tags = [term()]
 %%   Reason = term()
 %%
 %% @doc Reads a text file and returns the list of tags in the file. Any
 %% lines of text before the first tag are ignored. `Env' is an
-%% environment created by {@link edoc_lib:get_doc_env/4}. Upon error,
+%% environment created by {@link edoc_lib:get_doc_env/3}. Upon error,
 %% `Reason' is an atom returned from the call to {@link
 %% //kernel/file:read_file/1} or the atom 'invalid_unicode'.
 %%
@@ -249,12 +247,12 @@ file(File, Context, Env, Opts) ->
 
 %% @spec (Text::string(), Context, Env::edoc_env(),
 %%        Options::proplist()) -> Tags
-%%     Context = overview | package
+%%     Context = overview
 %%     Tags = [term()]
 %%
 %% @doc Returns the list of tags in the text. Any lines of text before
 %% the first tag are ignored. `Env' is an environment created by {@link
-%% edoc_lib:get_doc_env/4}.
+%% edoc_lib:get_doc_env/3}.
 %%
 %% See {@link source/4} for a description of the `def' option.
 
@@ -353,8 +351,6 @@ preprocess_forms_2(F, Fs) ->
 	    [F | preprocess_forms_1(Fs)];
 	{function, _} ->
 	    [F | preprocess_forms_1(Fs)];
-	{rule, _} ->
-	    [F | preprocess_forms_1(Fs)];
 	{attribute, {module, _}} ->
 	    [F | preprocess_forms_1(Fs)];
   	text ->
@@ -392,15 +388,6 @@ collect([F | Fs], Cs, Ss, Ts, As, Header, Mod) ->
                             export = Export,
                             data = {comment_text(Cs),Ss,Ts}} | As],
 		    Header, Mod);
-	{rule, Name} ->
-	    L = erl_syntax:get_pos(F),
-	    Export = ordsets:is_element(Name, Mod#module.exports),
-	    Args = parameters(erl_syntax:rule_clauses(F)),
-	    collect(Fs, [], [], [],
-                    [#entry{name = Name, args = Args, line = L,
-                            export = Export,
-                            data = {comment_text(Cs),Ss,Ts}} | As],
-		    Header, Mod);
 	{attribute, {module, _}} when Header =:= undefined ->
 	    L = erl_syntax:get_pos(F),
 	    collect(Fs, [], [], [], As,
diff --git a/lib/edoc/src/edoc_layout.erl b/lib/edoc/src/edoc_layout.erl
index a102d432bc..62d5eb9a18 100644
--- a/lib/edoc/src/edoc_layout.erl
+++ b/lib/edoc/src/edoc_layout.erl
@@ -27,7 +27,7 @@
 
 -module(edoc_layout).
 
--export([module/2, package/2, overview/2, type/1]).
+-export([module/2, overview/2, type/1]).
 
 -import(edoc_report, [report/2]).
 
@@ -535,7 +535,8 @@ t_clause(Name, Type) ->
 pp_clause(Pre, Type) ->
     Types = ot_utype([Type]),
     Atom = lists:duplicate(iolist_size(Pre), $a),
-    L1 = erl_pp:attribute({attribute,0,spec,{{list_to_atom(Atom),0},[Types]}}),
+    Attr = {attribute,0,spec,{{list_to_atom(Atom),0},[Types]}},
+    L1 = erl_pp:attribute(erl_parse:new_anno(Attr)),
     "-spec " ++ L2 = lists:flatten(L1),
     L3 = Pre ++ lists:nthtail(length(Atom), L2),
     re:replace(L3, "\n      ", "\n", [{return,list},global]).
@@ -555,7 +556,8 @@ format_type(Prefix, _Name, Type, Last, _Opts) ->
 
 pp_type(Prefix, Type) ->
     Atom = list_to_atom(lists:duplicate(iolist_size(Prefix), $a)),
-    L1 = erl_pp:attribute({attribute,0,type,{Atom,ot_utype(Type),[]}}),
+    Attr = {attribute,0,type,{Atom,ot_utype(Type),[]}},
+    L1 = erl_pp:attribute(erl_parse:new_anno(Attr)),
     {L2,N} = case lists:dropwhile(fun(C) -> C =/= $: end, lists:flatten(L1)) of
                  ":: " ++ L3 -> {L3,9}; % compensation for extra "()" and ":"
                  "::\n" ++ L3 -> {"\n"++L3,6}
@@ -701,6 +703,8 @@ deprecated(Es, S) ->
     end.
 
 behaviours(Es, Name) ->
+    CBs = get_content(callbacks, Es),
+    OCBs = get_content(optional_callbacks, Es),
     (case get_elem(behaviour, Es) of
 	 [] -> [];
 	 Es1 ->
@@ -709,13 +713,24 @@ behaviours(Es, Name) ->
 	      ?NL]
      end
      ++
-     case get_content(callbacks, Es) of
-	 [] -> [];
-	 Es1 ->
+     if CBs =:= [], OCBs =:= [] ->
+             [];
+	 true ->
+             Req = if CBs =:= [] ->
+                       [];
+                       true ->
+                           [br, " Required callback functions: "]
+                           ++ seq(fun callback/1, CBs, ["."])
+                   end,
+             Opt = if OCBs =:= [] ->
+                       [];
+                       true ->
+                           [br, " Optional callback functions: "]
+                           ++ seq(fun callback/1, OCBs, ["."])
+                   end,
 	     [{p, ([{b, ["This module defines the ", {tt, [Name]},
-			 " behaviour."]},
-		    br, " Required callback functions: "]
-		   ++ seq(fun callback/1, Es1, ["."]))},
+			 " behaviour."]}]
+                   ++ Req ++ Opt)},
 	      ?NL]
      end).
 
@@ -965,9 +980,6 @@ get_text(Name, Es) ->
 local_label(R) ->
     "#" ++ R.
 
-xhtml(Title, CSS, Body) ->
-    xhtml(Title, CSS, Body, "latin1").
-
 xhtml(Title, CSS, Body, Encoding) ->
     EncString = case Encoding of
                     "latin1" -> "ISO-8859-1";
@@ -997,27 +1009,6 @@ type(E, Ds) ->
     xmerl:export_simple_content(t_utype_elem(E) ++ local_defs(Ds, Opts),
 				?HTML_EXPORT).
 
-package(E=#xmlElement{name = package, content = Es}, Options) ->
-    Opts = init_opts(E, Options),
-    Name = get_text(packageName, Es),
-    Title = ["Package ", Name],
-    Desc = get_content(description, Es),
-%    ShortDesc = get_content(briefDescription, Desc),
-    FullDesc = get_content(fullDescription, Desc),
-    Body = ([?NL, {h1, [Title]}, ?NL]
-%	    ++ ShortDesc
-	    ++ copyright(Es)
-	    ++ deprecated(Es, "package")
-	    ++ version(Es)
-	    ++ since(Es)
-	    ++ authors(Es)
-	    ++ references(Es)
-	    ++ sees(Es)
-	    ++ todos(Es)
-	    ++ FullDesc),
-    XML = xhtml(Title, stylesheet(Opts), Body),
-    xmerl:export_simple(XML, ?HTML_EXPORT, []).
-
 overview(E=#xmlElement{name = overview, content = Es}, Options) ->
     Opts = init_opts(E, Options),
     Title = [get_text(title, Es)],
@@ -1096,8 +1087,8 @@ ot_var(E) ->
     {var,0,list_to_atom(get_attrval(name, E))}.
 
 ot_atom(E) ->
-    {ok, [Atom], _} = erl_scan:string(get_attrval(value, E), 0),
-    Atom.
+    {ok, [{atom,A,Name}], _} = erl_scan:string(get_attrval(value, E), 0),
+    {atom,erl_anno:line(A),Name}.
 
 ot_integer(E) ->
     {integer,0,list_to_integer(get_attrval(value, E))}.
diff --git a/lib/edoc/src/edoc_lib.erl b/lib/edoc/src/edoc_lib.erl
index c46338a2e1..dcc239f6b4 100644
--- a/lib/edoc/src/edoc_lib.erl
+++ b/lib/edoc/src/edoc_lib.erl
@@ -29,9 +29,9 @@
 	 get_first_sentence/1, is_space/1, strip_space/1, parse_expr/2,
 	 parse_contact/2, escape_uri/1, join_uri/2, is_relative_uri/1,
 	 is_name/1, to_label/1, find_doc_dirs/0, find_sources/2,
-	 find_sources/3, find_file/3, try_subdir/2, unique/1,
-	 write_file/3, write_file/4, write_file/5, write_info_file/4,
-	 read_info_file/1, get_doc_env/1, get_doc_env/4, copy_file/2,
+	 find_file/2, try_subdir/2, unique/1,
+	 write_file/3, write_file/4, write_info_file/3,
+	 read_info_file/1, get_doc_env/1, get_doc_env/3, copy_file/2,
 	 uri_get/1, run_doclet/2, run_layout/2,
 	 simplify_path/1, timestr/1, datestr/1, read_encoding/2]).
 
@@ -266,13 +266,6 @@ is_name_1([$_ | Cs]) ->
 is_name_1([]) -> true;
 is_name_1(_) -> false.
 
-to_atom(A) when is_atom(A) -> A;
-to_atom(S) when is_list(S) -> list_to_atom(S).
-
-to_list(A) when is_atom(A) -> atom_to_list(A);
-to_list(S) when is_list(S) -> S.
-
-    
 %% @private
 unique([X | Xs]) -> [X | unique(Xs, X)];
 unique([]) -> [].
@@ -674,7 +667,7 @@ simplify_path(P) ->
 try_subdir(Dir, Subdir) ->
     D = filename:join(Dir, Subdir),
     case filelib:is_dir(D) of
-	true -> D; 
+	true -> D;
 	false -> Dir
     end.
 
@@ -686,19 +679,10 @@ try_subdir(Dir, Subdir) ->
 %% @private
 
 write_file(Text, Dir, Name) ->
-    write_file(Text, Dir, Name, '').
-
-%% @spec (Text::deep_string(), Dir::edoc:filename(),
-%%        Name::edoc:filename(), Package::atom()|string()) -> ok
-%% @doc Like {@link write_file/3}, but adds path components to the target
-%% directory corresponding to the specified package.
-%% @private
+    write_file(Text, Dir, Name, [{encoding,latin1}]).
 
-write_file(Text, Dir, Name, Package) ->
-    write_file(Text, Dir, Name, Package, [{encoding,latin1}]).
-
-write_file(Text, Dir, Name, Package, Options) ->
-    File = filename:join([Dir, to_list(Package), Name]),
+write_file(Text, Dir, Name, Options) ->
+    File = filename:join([Dir, Name]),
     ok = filelib:ensure_dir(File),
     case file:open(File, [write] ++ Options) of
 	{ok, FD} ->
@@ -711,15 +695,14 @@ write_file(Text, Dir, Name, Package, Options) ->
     end.
 
 %% @private
-write_info_file(App, Packages, Modules, Dir) ->
-    Ts = [{packages, Packages},
-	  {modules, Modules}],
+write_info_file(App, Modules, Dir) ->
+    Ts = [{modules, Modules}],
     Ts1 = if App =:= ?NO_APP -> Ts;
 	     true -> [{application, App} | Ts]
 	  end,
     S0 = [io_lib:fwrite("~p.\n", [T]) || T <- Ts1],
     S = ["%% encoding: UTF-8\n" | S0],
-    write_file(S, Dir, ?INFO_FILE, '', [{encoding,unicode}]).
+    write_file(S, Dir, ?INFO_FILE, [{encoding,unicode}]).
 
 %% @spec (Name::edoc:filename()) -> {ok, string()} | {error, Reason}
 %%
@@ -744,9 +727,8 @@ read_file(File) ->
 
 info_file_data(Ts) ->
     App = proplists:get_value(application, Ts, ?NO_APP),
-    Ps = proplists:append_values(packages, Ts),
     Ms = proplists:append_values(modules, Ts),
-    {App, Ps, Ms}.
+    {App, Ms}.
 
 %% Local file access - don't complain if file does not exist.
 
@@ -761,10 +743,10 @@ read_info_file(Dir) ->
 		{error, R} ->
 		    R1 = file:format_error(R),
 		    warning("could not read '~ts': ~ts.", [File, R1]),
-		    {?NO_APP, [], []}
-	    end;	    
+		    {?NO_APP, []}
+	    end;
 	false ->
-	    {?NO_APP, [], []}
+	    {?NO_APP, []}
     end.
 
 %% URI access
@@ -776,7 +758,7 @@ uri_get_info_file(Base) ->
 	    parse_info_file(Text, URI);
 	{error, Msg} ->
 	    warning("could not read '~ts': ~ts.", [URI, Msg]),
-	    {?NO_APP, [], []}
+	    {?NO_APP, []}
     end.
 
 parse_info_file(Text, Name) ->
@@ -785,10 +767,10 @@ parse_info_file(Text, Name) ->
 	    info_file_data(Vs);
 	{error, eof} ->
 	    warning("unexpected end of file in '~ts'.", [Name]),
-	    {?NO_APP, [], []};
+	    {?NO_APP, []};
 	{error, {_Line,Module,R}} ->
 	    warning("~ts: ~ts.", [Module:format_error(R), Name]),
-	    {?NO_APP, [], []}
+	    {?NO_APP, []}
     end.
 
 parse_terms(Text) ->
@@ -815,82 +797,67 @@ parse_terms_1([], _As, _Vs) ->
 
 
 %% ---------------------------------------------------------------------
-%% Source files and packages
+%% Source files
 
+%% @doc See {@link edoc:run/2} for a description of the options
+%% `subpackages', `source_suffix'.
 %% @private
-find_sources(Path, Opts) ->
-    find_sources(Path, "", Opts).
 
-%% @doc See {@link edoc:run/3} for a description of the options
-%% `subpackages', `source_suffix' and `exclude_packages'.
-%% @private
+%% NEW-OPTIONS: subpackages, source_suffix
+%% DEFER-OPTIONS: edoc:run/2
 
-%% NEW-OPTIONS: subpackages, source_suffix, exclude_packages
-%% DEFER-OPTIONS: edoc:run/3
-
-find_sources(Path, Pkg, Opts) ->
+find_sources(Path, Opts) ->
     Rec = proplists:get_bool(subpackages, Opts),
     Ext = proplists:get_value(source_suffix, Opts, ?DEFAULT_SOURCE_SUFFIX),
-    find_sources(Path, Pkg, Rec, Ext, Opts).
+    find_sources(Path, Rec, Ext, Opts).
 
-find_sources(Path, Pkg, Rec, Ext, Opts) ->
-    Skip = proplists:get_value(exclude_packages, Opts, []),
-    lists:flatten(find_sources_1(Path, to_atom(Pkg), Rec, Ext, Skip)).
+find_sources(Path, Rec, Ext, _Opts) ->
+    lists:flatten(find_sources_1(Path, Rec, Ext)).
 
-find_sources_1([P | Ps], Pkg, Rec, Ext, Skip) ->
-    Dir = filename:join(P, atom_to_list(Pkg)),
-    Fs1 = find_sources_1(Ps, Pkg, Rec, Ext, Skip),
+find_sources_1([P | Ps], Rec, Ext) ->
+    Dir = P,
+    Fs1 = find_sources_1(Ps, Rec, Ext),
     case filelib:is_dir(Dir) of
 	true ->
-	    [find_sources_2(Dir, Pkg, Rec, Ext, Skip) | Fs1];
+	    [find_sources_2(Dir, Rec, Ext) | Fs1];
 	false ->
 	    Fs1
     end;
-find_sources_1([], _Pkg, _Rec, _Ext, _Skip) ->
+find_sources_1([], _Rec, _Ext) ->
     [].
 
-find_sources_2(Dir, Pkg, Rec, Ext, Skip) ->
-    case lists:member(Pkg, Skip) of
-	false ->
-	    Es = list_dir(Dir, false),    % just warn if listing fails
-	    Es1 = [{Pkg, E, Dir} || E <- Es, is_source_file(E, Ext)],
-	    case Rec of
+find_sources_2(Dir, Rec, Ext) ->
+	Es = list_dir(Dir, false),    % just warn if listing fails
+	Es1 = [{E, Dir} || E <- Es, is_source_file(E, Ext)],
+	case Rec of
 		true ->
-		    [find_sources_3(Es, Dir, Pkg, Rec, Ext, Skip) | Es1];
+			[find_sources_3(Es, Dir, Rec, Ext) | Es1];
 		false ->
-		    Es1
-	    end;
-	true ->
-	    []
-    end.
+			Es1
+	end.
 
-find_sources_3(Es, Dir, Pkg, Rec, Ext, Skip) ->
+find_sources_3(Es, Dir, Rec, Ext) ->
     [find_sources_2(filename:join(Dir, E),
-		    to_atom(join(Pkg, E)), Rec, Ext, Skip)
-     || E <- Es, is_package_dir(E, Dir)].
-
-join('', E) -> E;
-join(Pkg, E) -> filename:join(Pkg, E).
+		    Rec, Ext)
+     || E <- Es, is_source_dir(E, Dir)].
 
 is_source_file(Name, Ext) ->
     (filename:extension(Name) == Ext)
 	andalso is_name(filename:rootname(Name, Ext)).
 
-is_package_dir(Name, Dir) ->
-    is_name(filename:rootname(filename:basename(Name)))
-	andalso filelib:is_dir(filename:join(Dir, Name)).
+is_source_dir(Name, Dir) ->
+    filelib:is_dir(filename:join(Dir, Name)).
 
 %% @private
-find_file([P | Ps], []=Pkg, Name) ->
-    Pkg = [],
+find_file([P | Ps], Name) ->
     File = filename:join(P, Name),
     case filelib:is_file(File) of
 	true ->
-	    File;    
+	    File;
 	false ->
-	    find_file(Ps, Pkg, Name)
-    end;    
-find_file([], [], _Name) ->
+	    find_file(Ps, Name)
+    end;
+find_file([], _Name) ->
     "".
 
 %% @private
@@ -909,7 +876,7 @@ find_doc_dirs([P0 | Ps]) ->
     File = filename:join(Dir, ?INFO_FILE),
     case filelib:is_file(File) of
 	true ->
-	    [Dir | find_doc_dirs(Ps)]; 
+	    [Dir | find_doc_dirs(Ps)];
 	false ->
 	    find_doc_dirs(Ps)
     end;
@@ -921,24 +888,23 @@ find_doc_dirs([]) ->
 %% implies that we use the default app-path.
 
 %% NEW-OPTIONS: doc_path
-%% DEFER-OPTIONS: get_doc_env/4
+%% DEFER-OPTIONS: get_doc_env/3
 
-get_doc_links(App, Packages, Modules, Opts) ->
+get_doc_links(App, Modules, Opts) ->
     Path = proplists:append_values(doc_path, Opts) ++ find_doc_dirs(),
     Ds = [{P, uri_get_info_file(P)} || P <- Path],
-    Ds1 = [{"", {App, Packages, Modules}} | Ds],
+    Ds1 = [{"", {App, Modules}} | Ds],
     D = dict:new(),
-    make_links(Ds1, D, D, D).
+    make_links(Ds1, D, D).
 
-make_links([{Dir, {App, Ps, Ms}} | Ds], A, P, M) ->
+make_links([{Dir, {App, Ms}} | Ds], A, M) ->
     A1 = if App == ?NO_APP -> A;
 	    true -> add_new(App, Dir, A)
 	 end,
     F = fun (K, D) -> add_new(K, Dir, D) end,
-    P1 = lists:foldl(F, P, Ps),
     M1 = lists:foldl(F, M, Ms),
-    make_links(Ds, A1, P1, M1);
-make_links([], A, P, M) ->
+    make_links(Ds, A1, M1);
+make_links([], A,  M) ->
     F = fun (D) ->
 		fun (K) ->
 			case dict:find(K, D) of
@@ -947,7 +913,7 @@ make_links([], A, P, M) ->
 			end
 		end
 	end,
-    {F(A), F(P), F(M)}.
+    {F(A), F(M)}.
 
 add_new(K, V, D) ->
     case dict:is_key(K, D) of
@@ -958,15 +924,14 @@ add_new(K, V, D) ->
     end.
 
 %% @spec (Options::proplist()) -> edoc_env()
-%% @equiv get_doc_env([], [], [], Opts)
+%% @equiv get_doc_env([], [], Opts)
 %% @private
 
 get_doc_env(Opts) ->
-    get_doc_env([], [], [], Opts).
+    get_doc_env([], [], Opts).
 
-%% @spec (App, Packages, Modules, Options::proplist()) -> edoc_env()
+%% @spec (App, Modules, Options::proplist()) -> edoc_env()
 %%     App = [] | atom()
-%%     Packages = [atom()]
 %%     Modules = [atom()]
 %%     proplist() = [term()]
 %%
@@ -975,7 +940,7 @@ get_doc_env(Opts) ->
 %% generating references. The data representation is not documented.
 %%
 %% @doc Creates an environment data structure used by parts of EDoc for
-%% generating references, etc. See {@link edoc:run/3} for a description
+%% generating references, etc. See {@link edoc:run/2} for a description
 %% of the options `file_suffix', `app_default' and `doc_path'.
 %%
 %% @see edoc_extract:source/4
@@ -983,19 +948,17 @@ get_doc_env(Opts) ->
 
 %% NEW-OPTIONS: file_suffix, app_default
 %% INHERIT-OPTIONS: get_doc_links/4
-%% DEFER-OPTIONS: edoc:run/3
+%% DEFER-OPTIONS: edoc:run/2
 
-get_doc_env(App, Packages, Modules, Opts) ->
+get_doc_env(App, Modules, Opts) ->
     Suffix = proplists:get_value(file_suffix, Opts,
 				 ?DEFAULT_FILE_SUFFIX),
     AppDefault = proplists:get_value(app_default, Opts, ?APP_DEFAULT),
     Includes = proplists:append_values(includes, Opts),
 
-    {A, P, M} = get_doc_links(App, Packages, Modules, Opts),
+    {A, M} = get_doc_links(App, Modules, Opts),
     #env{file_suffix = Suffix,
-	 package_summary = ?PACKAGE_SUMMARY ++ Suffix,
 	 apps = A,
-	 packages = P,
 	 modules = M,
 	 app_default = AppDefault,
 	 includes = Includes
@@ -1004,10 +967,10 @@ get_doc_env(App, Packages, Modules, Opts) ->
 %% ---------------------------------------------------------------------
 %% Plug-in modules
 
-%% @doc See {@link edoc:run/3} for a description of the `doclet' option.
+%% @doc See {@link edoc:run/2} for a description of the `doclet' option.
 
 %% NEW-OPTIONS: doclet
-%% DEFER-OPTIONS: edoc:run/3
+%% DEFER-OPTIONS: edoc:run/2
 
 %% @private
 run_doclet(Fun, Opts) ->
@@ -1049,7 +1012,7 @@ get_plugin(Key, Default, Opts) ->
 %% ---------------------------------------------------------------------
 %% Error handling
 
--type line() :: erl_scan:line().
+-type line() :: erl_anno:line().
 -type err()  :: 'eof'
 	      | {'missing', char()}
 	      | {line(), atom(), string()}
diff --git a/lib/edoc/src/edoc_macros.erl b/lib/edoc/src/edoc_macros.erl
index 8efbfd00c7..e1a54d5090 100644
--- a/lib/edoc/src/edoc_macros.erl
+++ b/lib/edoc/src/edoc_macros.erl
@@ -40,10 +40,6 @@ std_macros(Env) ->
 	true -> [{module, atom_to_list(Env#env.module)}]
      end
      ++
-     if Env#env.package =:= [] -> [];
-	true -> [{package, atom_to_list(Env#env.package)}]
-     end
-     ++
      [{date, fun date_macro/3},
       {docRoot, Env#env.root},
       {link, fun link_macro/3},
@@ -315,7 +311,7 @@ macro_content([C | Cs], As, L, N) ->
 macro_content([], _As, _L, _N) ->
     throw('end').
 
--type line() :: erl_scan:line().
+-type line() :: erl_anno:line().
 -type err()  :: 'unterminated_macro'
 	      | 'macro_name'
 	      | {'macro_name', string()}
diff --git a/lib/edoc/src/edoc_parser.yrl b/lib/edoc/src/edoc_parser.yrl
index c6f8a04775..835e7ccaa6 100644
--- a/lib/edoc/src/edoc_parser.yrl
+++ b/lib/edoc/src/edoc_parser.yrl
@@ -28,7 +28,7 @@
 Nonterminals
 start spec func_type utype_list utype_tuple utypes utype ptypes ptype
 nutype function_name where_defs defs defs2 def typedef etype
-throws qname ref aref mref lref pref var_list vars fields field
+throws qname ref aref mref lref var_list vars fields field
 utype_map utype_map_fields utype_map_field
 futype_list bin_base_type bin_unit_type.
 
@@ -207,14 +207,11 @@ typedef -> atom var_list '=' utype where_defs:
 ref -> aref: '$1'.
 ref -> mref: '$1'.
 ref -> lref: '$1'.
-ref -> pref: '$1'.
 
 aref -> '//' atom:
     edoc_refs:app(tok_val('$2')).
 aref -> '//' atom '/' mref:
     edoc_refs:app(tok_val('$2'), '$4').
-aref -> '//' atom '/' pref:
-    edoc_refs:app(tok_val('$2'), '$4').
 
 mref -> qname ':' atom '/' integer:
     edoc_refs:function(qname('$1'), tok_val('$3'), tok_val('$5')).
@@ -223,9 +220,6 @@ mref -> qname ':' atom '(' ')':
 mref -> qname:
     edoc_refs:module(qname('$1')).
 
-pref -> qname '.' '*':
-    edoc_refs:package(qname('$1')).
-
 lref -> atom '/' integer:
     edoc_refs:function(tok_val('$1'), tok_val('$3')).
 lref -> atom '(' ')':
@@ -344,7 +338,7 @@ build_def(S, P, As, T) ->
                                   args = lists:reverse(As)},
                    type = T};
         false ->
-            return_error(element(2, P), "variable expected after '('")
+            return_error(tok_line(P), "variable expected after '('")
     end.
 
 all_vars([#t_var{} | As]) ->
@@ -399,7 +393,7 @@ parse_typedef_1(S, L) ->
 
 %% @doc Parses a <a
 %% href="overview-summary.html#References">reference</a> to a module,
-%% package, function, type, or application
+%% function, type, or application
 
 parse_ref(S, L) ->
     case edoc_scanner:string(S, L) of
@@ -458,7 +452,7 @@ parse_throws(S, L) ->
 
 %% ---------------------------------------------------------------------
 
--spec throw_error(term(), erl_scan:line()) -> no_return().
+-spec throw_error(term(), erl_anno:line()) -> no_return().
 
 throw_error({parse_spec, E}, L) ->
     throw_error({"specification", E}, L);
diff --git a/lib/edoc/src/edoc_refs.erl b/lib/edoc/src/edoc_refs.erl
index ea439490ed..b9a9391053 100644
--- a/lib/edoc/src/edoc_refs.erl
+++ b/lib/edoc/src/edoc_refs.erl
@@ -27,10 +27,9 @@
 
 -module(edoc_refs).
 
--export([app/1, app/2, package/1, module/1, module/2, module/3,
+-export([app/1, app/2, module/1, module/2, module/3,
 	 function/2, function/3, function/4, type/1, type/2, type/3,
-	 to_string/1, to_label/1, get_uri/2, is_top/2,
-	 relative_module_path/2, relative_package_path/2]).
+	 to_string/1, to_label/1, get_uri/2, is_top/2]).
 
 -import(edoc_lib, [join_uri/2, escape_uri/1]).
 
@@ -56,9 +55,6 @@ module(M, Ref) ->
 module(App, M, Ref) ->
     app(App, module(M, Ref)).
 
-package(P) ->
-    {package, P}.
-
 function(F, A) ->
     {function, F, A}.
 
@@ -88,8 +84,6 @@ to_string({module, M}) ->
     atom_to_list(M) ;
 to_string({module, M, Ref}) ->
     atom_to_list(M) ++ ":" ++ to_string(Ref);
-to_string({package, P}) ->
-    atom_to_list(P) ++ ".*";
 to_string({function, F, A}) ->
     atom_to_list(F) ++ "/" ++ integer_to_list(A);
 to_string({type, T}) ->
@@ -111,24 +105,19 @@ get_uri({module, M, Ref}, Env) ->
     module_ref(M, Env) ++ "#" ++ to_label(Ref);
 get_uri({module, M}, Env) ->
     module_ref(M, Env);
-get_uri({package, P}, Env) ->
-    package_ref(P, Env);
 get_uri(Ref, _Env) ->
     "#" ++ to_label(Ref).
 
 abs_uri({module, M}, Env) ->
     module_absref(M, Env);
 abs_uri({module, M, Ref}, Env) ->
-    module_absref(M, Env) ++ "#" ++ to_label(Ref);
-abs_uri({package, P}, Env) ->
-    package_absref(P, Env).
+    module_absref(M, Env) ++ "#" ++ to_label(Ref).
 
 module_ref(M, Env) ->
     case (Env#env.modules)(M) of
 	"" ->
 	    File = atom_to_list(M) ++ Env#env.file_suffix,
-	    Path = relative_module_path(M, Env#env.package),
-	    join_uri(Path, escape_uri(File));
+	    escape_uri(File);
 	Base ->
 	    join_uri(Base, module_absref(M, Env))
     end.
@@ -136,19 +125,6 @@ module_ref(M, Env) ->
 module_absref(M, Env) ->
     escape_uri(atom_to_list(M)) ++ escape_uri(Env#env.file_suffix).
 
-package_ref(P, Env) ->
-    case (Env#env.packages)(P) of
-	"" ->
-	    join_uri(relative_package_path(P, Env#env.package),
-		     escape_uri(Env#env.package_summary));
-	Base ->
-	    join_uri(Base, package_absref(P, Env))
-    end.
-
-package_absref(P, Env) ->
-    join_uri(escape_uri(atom_to_list(P)),
-	     escape_uri(Env#env.package_summary)).
-
 app_ref(A, Env) ->
     case (Env#env.apps)(A) of
 	"" ->
@@ -166,43 +142,3 @@ is_top({app, _App}, _Env) ->
 is_top(_Ref, _Env) ->
     false.
 
-%% Each segment of a path must be separately escaped before joining.
-
-join_segments([S]) ->
-    escape_uri(S);
-join_segments([S | Ss]) ->
-    join_uri(escape_uri(S), join_segments(Ss)).
-
-%% 'From' is always the "current package" here:
-
-%% The empty string is returned if the To module has only one segment,
-%% implying a local reference.
-
-relative_module_path(_To, _From) ->
-    "".
-
-relative_package_path(To, From) ->
-    relative_path([atom_to_list(To)], [atom_to_list(From)]).
-
-%% This takes two lists of path segments (From, To). Note that an empty
-%% string will be returned if the paths are the same. Empty leading
-%% segments are stripped from both paths.
-
-relative_path(Ts, ["" | Fs]) ->
-    relative_path(Ts, Fs);
-relative_path(["" | Ts], Fs) ->
-    relative_path(Ts, Fs);
-relative_path(Ts, Fs) ->
-    relative_path_1(Ts, Fs).
-
-relative_path_1([T | Ts], [F | Fs]) when F == T ->
-    relative_path_1(Ts, Fs);
-relative_path_1(Ts, Fs) ->
-    relative_path_2(Fs, Ts).
-
-relative_path_2([_F | Fs], Ts) ->
-    relative_path_2(Fs, [".." | Ts]);
-relative_path_2([], []) ->
-    "";
-relative_path_2([], Ts) ->
-    join_segments(Ts).
diff --git a/lib/edoc/src/edoc_run.erl b/lib/edoc/src/edoc_run.erl
index b5a1ef713d..9a569d0879 100644
--- a/lib/edoc/src/edoc_run.erl
+++ b/lib/edoc/src/edoc_run.erl
@@ -17,7 +17,7 @@
 %% @copyright 2003 Richard Carlsson
 %% @author Richard Carlsson <[email protected]>
 %% @see edoc
-%% @end 
+%% @end
 %% =====================================================================
 
 %% @doc Interface for calling EDoc from Erlang startup options.
@@ -38,7 +38,7 @@
 
 -module(edoc_run).
 
--export([file/1, application/1, packages/1, files/1, toc/1]).
+-export([file/1, application/1, files/1, toc/1]).
 
 -compile({no_auto_import,[error/1]}).
 
@@ -92,28 +92,6 @@ files(Args) ->
 	end,
     run(F).
 
-%% @spec packages([string()]) -> none()
-%%
-%% @doc Calls {@link edoc:application/2} with the corresponding
-%% arguments. The strings in the list are parsed as Erlang constant
-%% terms. The list can be either `[Packages]' or `[Packages, Options]'.
-%% In the first case {@link edoc:application/1} is called instead.
-%%
-%% The function call never returns; instead, the emulator is
-%% automatically terminated when the call has completed, signalling
-%% success or failure to the operating system.
-
-packages(Args) ->
-    F = fun () ->
-		case parse_args(Args) of
-		    [Packages] -> edoc:packages(Packages);
-		    [Packages, Opts] -> edoc:packages(Packages, Opts);
-		    _ ->
-			invalid_args("edoc_run:packages/1", Args)
-		end
-	end,
-    run(F).
-
 %% @hidden   Not official yet
 toc(Args) ->
     F = fun () ->
@@ -131,8 +109,8 @@ toc(Args) ->
 %%
 %% @deprecated This is part of the old interface to EDoc and is mainly
 %% kept for backwards compatibility. The preferred way of generating
-%% documentation is through one of the functions {@link application/1},
-%% {@link packages/1} and {@link files/1}.
+%% documentation is through one of the functions {@link application/1}
+%% and {@link files/1}.
 %%
 %% @doc Calls {@link edoc:file/2} with the corresponding arguments. The
 %% strings in the list are parsed as Erlang constant terms. The list can
diff --git a/lib/edoc/src/edoc_specs.erl b/lib/edoc/src/edoc_specs.erl
index 211a354c74..59f6cb8ddf 100644
--- a/lib/edoc/src/edoc_specs.erl
+++ b/lib/edoc/src/edoc_specs.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -58,7 +58,7 @@ type(Form, TypeDocs) ->
                     end,
                 {#t_name{name = N}, T, As, Doc0}
         end,
-    #tag{name = type, line = element(2, Type),
+    #tag{name = type, line = get_line(element(2, Type)),
          origin = code,
          data = {#t_typedef{name = TypeName,
                             args = d2e(Args),
@@ -71,7 +71,7 @@ type(Form, TypeDocs) ->
 spec(Form, Clause) ->
     {Name, _Arity, TypeSpecs} = get_spec(Form),
     TypeSpec = lists:nth(Clause, TypeSpecs),
-    #tag{name = spec, line = element(2, TypeSpec),
+    #tag{name = spec, line = get_line(element(2, TypeSpec)),
          origin = code,
          data = aspec(d2e(TypeSpec), Name)}.
 
@@ -83,7 +83,7 @@ dummy_spec(Form) ->
     {#t_name{name = Name}, Arity, TypeSpecs} = get_spec(Form),
     As = string:join(lists:duplicate(Arity, "_X"), ","),
     S = lists:flatten(io_lib:format("~p(~s) -> true\n", [Name, As])),
-    #tag{name = spec, line = element(2, hd(TypeSpecs)),
+    #tag{name = spec, line = get_line(element(2, hd(TypeSpecs))),
          origin = code, data = S}.
 
 -spec docs(Forms::[syntaxTree()],
@@ -140,7 +140,7 @@ find_type_docs([F | Fs], Cs, Fun) ->
             %% Postcomments before the dot after the typespec are ignored.
             C2 = [C1 | [C ||
                            C <- erl_syntax:get_postcomments(F),
-                           get_line(erl_syntax:get_pos(C)) >= LastTypeLine]],
+                           erl_syntax:get_pos(C) >= LastTypeLine]],
             C3 = collect_comments(Fs, LastTypeLine),
             #tag{data = Doc0} = Fun(lists:reverse(C2 ++ C3), LastTypeLine),
             case strip(Doc0) of % Strip away "f(). \n"
@@ -157,7 +157,7 @@ find_type_docs([F | Fs], Cs, Fun) ->
 collect_comments([], _Line) ->
     [];
 collect_comments([F | Fs], Line) ->
-    L1 = get_line(erl_syntax:get_pos(F)),
+    L1 = erl_syntax:get_pos(F),
     if
         L1 =:= Line + 1;
         L1 =:= Line -> % a separate postcomment
@@ -190,29 +190,26 @@ get_name_and_last_line(F) ->
     {Name, Data} = erl_syntax_lib:analyze_wild_attribute(F),
     type = edoc_specs:tag(Name),
     Attr = {attribute, erl_syntax:get_pos(F), Name, Data},
-    Ref = make_ref(),
-    Fun = fun(L) -> {Ref, get_line(L)} end,
+    Fun = fun(A) ->
+                  Line = get_line(A),
+                  case get('$max_line') of
+                      Max when Max < Line ->
+                          _ = put('$max_line', Line);
+                      _ ->
+                          ok
+                  end
+          end,
+    undefined = put('$max_line', 0),
+    _ = erl_parse:map_anno(Fun, Attr),
+    Line = erase('$max_line'),
     TypeName = case Data of
                    {N, _T, As} when is_atom(N) -> % skip records
                        {N, length(As)}
                end,
-    Line = gll(erl_lint:modify_line(Attr, Fun), Ref),
     {TypeName, Line}.
 
-gll({Ref, Line}, Ref) ->
-    Line;
-gll([], _Ref) ->
-    0;
-gll(List, Ref) when is_list(List) ->
-    lists:max([gll(E, Ref) || E <- List]);
-gll(Tuple, Ref) when is_tuple(Tuple) ->
-    gll(tuple_to_list(Tuple), Ref);
-gll(_, _) ->
-    0.
-
-get_line(Pos) ->
-    {line, Line} = erl_scan:attributes_info(Pos, line),
-    Line.
+get_line(Anno) ->
+    erl_anno:line(Anno).
 
 %% Collect all Erlang types. Types in comments (@type) shadow Erlang
 %% types (-spec/-opaque).
@@ -348,7 +345,7 @@ d2e({type,_,constraint,[Sub,Ts0]}) ->
             Ts = [ST,T] = d2e([ST0,T0]),
             #t_def{name = ST, type = typevar_anno(T, Ts)};
         _ ->
-            throw_error(element(2, Sub), "cannot handle guard", [])
+            throw_error(get_line(element(2, Sub)), "cannot handle guard", [])
     end;
 d2e({type,_,union,Ts0}) ->
     Ts = d2e(Ts0),
@@ -362,7 +359,7 @@ d2e({type,_,map,any}) ->
     #t_map{ types = []};
 d2e({type,_,map,Es}) ->
     #t_map{ types = d2e(Es) };
-d2e({type,_,map_field_assoc,K,V}) ->
+d2e({type,_,map_field_assoc,[K,V]}) ->
     #t_map_field{ k_type = d2e(K), v_type=d2e(V) };
 d2e({type,_,map_field_exact,K,V}) ->
     #t_map_field{ k_type = d2e(K), v_type=d2e(V) };
@@ -388,6 +385,9 @@ d2e({record_field,L,_Name}=F) ->
 d2e({type,_,Name,Types0}) ->
     Types = d2e(Types0),
     typevar_anno(#t_type{name = #t_name{name = Name}, args = Types}, Types);
+d2e({user_type,_,Name,Types0}) ->
+    Types = d2e(Types0),
+    typevar_anno(#t_type{name = #t_name{name = Name}, args = Types}, Types);
 d2e({var,_,'_'}) ->
     #t_type{name = #t_name{name = ?TOP_TYPE}};
 d2e({var,_,TypeName}) ->
diff --git a/lib/edoc/src/edoc_tags.erl b/lib/edoc/src/edoc_tags.erl
index 264a533a52..9e2e41e902 100644
--- a/lib/edoc/src/edoc_tags.erl
+++ b/lib/edoc/src/edoc_tags.erl
@@ -42,7 +42,7 @@
 %%   Name = atom()
 %%   Parser = text | xml | (Text,Line,Where) -> term()
 %%   Flags = [Flag]
-%%   Flag = module | function | package | overview | single
+%%   Flag = module | function | overview | single
 %%
 %% Note that the pseudo-tag '@clear' is not listed here.
 %% (Cf. the function 'filter_tags'.)
@@ -57,11 +57,11 @@
 %% - @category (useless; superseded by keywords or free text search)
 
 tags() ->
-    All = [module,footer,function,package,overview],
-    [{author, fun parse_contact/4, [module,package,overview]},
-     {copyright, text, [module,package,overview,single]},
-     {deprecated, xml, [module,function,package,single]},
-     {doc, xml,	[module,function,package,overview,single]},
+    All = [module,footer,function,overview],
+    [{author, fun parse_contact/4, [module,overview]},
+     {copyright, text, [module,overview,single]},
+     {deprecated, xml, [module,function,single]},
+     {doc, xml,	[module,function,overview,single]},
      {docfile, fun parse_file/4, All},
      {'end', text, All},
      {equiv, fun parse_expr/4, [function,single]},
@@ -69,17 +69,17 @@ tags() ->
      {hidden, text, [module,function,single]},
      {param, fun parse_param/4, [function]},
      {private, text, [module,function,single]},
-     {reference, xml, [module,footer,package,overview]},
+     {reference, xml, [module,footer,overview]},
      {returns, xml, [function,single]},
-     {see, fun parse_see/4, [module,function,package,overview]},
-     {since, text, [module,function,package,overview,single]},
+     {see, fun parse_see/4, [module,function,overview]},
+     {since, text, [module,function,overview,single]},
      {spec, fun parse_spec/4, [function,single]},
      {throws, fun parse_throws/4, [function,single]},
      {title, text, [overview,single]},
      {'TODO', xml, All},
      {todo, xml, All},
      {type, fun parse_typedef/4, [module,footer,function]},
-     {version, text, [module,package,overview,single]}].
+     {version, text, [module,overview,single]}].
 
 aliases('TODO') -> todo;
 aliases(return) -> returns;
@@ -329,10 +329,7 @@ parse_typedef(Data, Line, _Env, Where) ->
     NAs = length(As),
     case edoc_types:is_predefined(T, NAs) of
 	true ->
-            case
-                edoc_types:is_new_predefined(T, NAs)
-                orelse edoc_types:is_predefined_otp_type(T, NAs)
-            of
+            case edoc_types:is_new_predefined(T, NAs) of
                 false ->
                     throw_error(Line, {"redefining built-in type '~w'.",
                                        [T]});
@@ -345,7 +342,7 @@ parse_typedef(Data, Line, _Env, Where) ->
 	    Def
     end.
 
--type line() :: erl_scan:line().
+-type line() :: erl_anno:line().
 
 -spec parse_file(_, line(), _, _) -> no_return().
 
@@ -372,7 +369,7 @@ parse_header(Data, Line, Env, Where) when is_list(Where) ->
 	{string, _, File} ->
 	    Dir = filename:dirname(Where),
 	    Path = Env#env.includes ++ [Dir],
-	    case edoc_lib:find_file(Path, "", File) of
+	    case edoc_lib:find_file(Path, File) of
 		"" ->
 		    throw_error(Line, {file_not_found, File});
 		File1 ->
@@ -499,7 +496,6 @@ check_used_type(#t_name{name = N, module = Mod}=Name, Args, P, LocalTypes) ->
         Mod =/= []
         orelse lists:member(TypeName, ets:lookup(DT, Name))
         orelse edoc_types:is_predefined(N, NArgs)
-        orelse edoc_types:is_predefined_otp_type(N, NArgs)
         orelse lists:member(TypeName, LocalTypes)
     of
         true ->
diff --git a/lib/edoc/src/edoc_types.erl b/lib/edoc/src/edoc_types.erl
index 8a6c8eb33e..65fba61a72 100644
--- a/lib/edoc/src/edoc_types.erl
+++ b/lib/edoc/src/edoc_types.erl
@@ -25,7 +25,7 @@
 
 -module(edoc_types).
 
--export([is_predefined/2, is_new_predefined/2, is_predefined_otp_type/2,
+-export([is_predefined/2, is_new_predefined/2,
          to_ref/1, to_xml/2, to_label/1, arg_names/1, set_arg_names/2,
          arg_descs/1, range_desc/1]).
 
@@ -34,67 +34,13 @@
 -include("edoc_types.hrl").
 -include_lib("xmerl/include/xmerl.hrl").
 
-
-is_predefined(any, 0) -> true;
-is_predefined(atom, 0) -> true;
-is_predefined(binary, 0) -> true;
-is_predefined(bool, 0) -> true;    % kept for backwards compatibility
-is_predefined(char, 0) -> true;
 is_predefined(cons, 2) -> true;
 is_predefined(deep_string, 0) -> true;
-is_predefined(float, 0) -> true;
-is_predefined(function, 0) -> true;
-is_predefined(integer, 0) -> true;
-is_predefined(list, 0) -> true;
-is_predefined(list, 1) -> true;
-is_predefined(nil, 0) -> true;
-is_predefined(none, 0) -> true;
-is_predefined(no_return, 0) -> true;
-is_predefined(number, 0) -> true;
-is_predefined(pid, 0) -> true;
-is_predefined(port, 0) -> true;
-is_predefined(reference, 0) -> true;
-is_predefined(string, 0) -> true;
-is_predefined(term, 0) -> true;
-is_predefined(tuple, 0) -> true;
-is_predefined(F, A) -> is_new_predefined(F, A).
+is_predefined(F, A) -> erl_internal:is_type(F, A).
 
-%% Should eventually be coalesced with is_predefined/2.
-is_new_predefined(arity, 0) -> true;
-is_new_predefined(bitstring, 0) -> true;
-is_new_predefined(boolean, 0) -> true;
-is_new_predefined(byte, 0) -> true;
-is_new_predefined(iodata, 0) -> true;
-is_new_predefined(iolist, 0) -> true;
 is_new_predefined(map, 0) -> true;
-is_new_predefined(maybe_improper_list, 0) -> true;
-is_new_predefined(maybe_improper_list, 2) -> true;
-is_new_predefined(mfa, 0) -> true;
-is_new_predefined(module, 0) -> true;
-is_new_predefined(neg_integer, 0) -> true;
-is_new_predefined(node, 0) -> true;
-is_new_predefined(non_neg_integer, 0) -> true;
-is_new_predefined(nonempty_improper_list, 2) -> true;
-is_new_predefined(nonempty_list, 0) -> true;
-is_new_predefined(nonempty_list, 1) -> true;
-is_new_predefined(nonempty_maybe_improper_list, 0) -> true;
-is_new_predefined(nonempty_maybe_improper_list, 2) -> true;
-is_new_predefined(nonempty_string, 0) -> true;
-is_new_predefined(pos_integer, 0) -> true;
-is_new_predefined(timeout, 0) -> true;
 is_new_predefined(_, _) -> false.
 
-%% The following types will be removed later, but they are currently
-%% kind of built-in.
-is_predefined_otp_type(array, 0) -> true;
-is_predefined_otp_type(dict, 0) -> true;
-is_predefined_otp_type(digraph, 0) -> true;
-is_predefined_otp_type(gb_set, 0) -> true;
-is_predefined_otp_type(gb_tree, 0) -> true;
-is_predefined_otp_type(queue, 0) -> true;
-is_predefined_otp_type(set, 0) -> true;
-is_predefined_otp_type(_, _) -> false.
-
 to_ref(#t_typedef{name = N}) ->
     to_ref(N);
 to_ref(#t_def{name = N}) ->
@@ -129,8 +75,7 @@ to_xml(#t_type{name = N, args = As}, Env) ->
     Predef = case N of
 		 #t_name{module = [], name = T} ->
                      NArgs = length(As),
-		     (is_predefined(T, NArgs)
-                      orelse is_predefined_otp_type(T, NArgs));
+		     is_predefined(T, NArgs);
 		 _ ->
 		     false
 	     end,
diff --git a/lib/edoc/src/otpsgml_layout.erl b/lib/edoc/src/otpsgml_layout.erl
index 2c4cd919bb..052c75b9d4 100644
--- a/lib/edoc/src/otpsgml_layout.erl
+++ b/lib/edoc/src/otpsgml_layout.erl
@@ -28,7 +28,7 @@
 
 -module(otpsgml_layout).
 
--export([module/2, package/2, overview/2,type/1]).
+-export([module/2, overview/2,type/1]).
 
 -import(edoc_report, [report/2]).
 
@@ -811,27 +811,6 @@ xml(Title, CSS, Body) ->
      xmerl:export_simple_content(t_utype_elem(E) ++ local_defs(Ds),
  				?SGML_EXPORT).
 
-
-package(E=#xmlElement{name = package, content = Es}, Options) ->
-    Opts = init_opts(E, Options),
-    Name = get_text(packageName, Es),
-    Title = io_lib:fwrite("Package ~s", [Name]),
-    Desc = get_content(description, Es),
-%    ShortDesc = get_content(briefDescription, Desc),
-    FullDesc = get_content(fullDescription, Desc),
-    Body = ([?NL, {h1, [Title]}, ?NL]
-%	    ++ ShortDesc
-	    ++ copyright(Es)
-	    ++ deprecated(Es, "package")
-	    ++ version(Es)
-	    ++ since(Es)
-	    ++ authors(Es)
-	    ++ references(Es)
-	    ++ sees(Es)
-	    ++ FullDesc),
-    XML = xml(Title, stylesheet(Opts), Body),
-    xmerl:export_simple([XML], ?SGML_EXPORT, []).
-
 overview(E=#xmlElement{name = overview, content = Es}, Options) ->
     Opts = init_opts(E, Options),
     Title = get_text(title, Es),
@@ -843,6 +822,7 @@ overview(E=#xmlElement{name = overview, content = Es}, Options) ->
 	    ++ copyright(Es)
 	    ++ version(Es)
 	    ++ since(Es)
+	    ++ deprecated(Es, "application")
 	    ++ authors(Es)
 	    ++ references(Es)
 	    ++ sees(Es)
diff --git a/lib/edoc/test/edoc_SUITE.erl b/lib/edoc/test/edoc_SUITE.erl
index c63660c8c0..6b23054ce3 100644
--- a/lib/edoc/test/edoc_SUITE.erl
+++ b/lib/edoc/test/edoc_SUITE.erl
@@ -22,12 +22,12 @@
 	 init_per_group/2,end_per_group/2]).
 
 %% Test cases
--export([app/1,appup/1,build_std/1,build_map_module/1,otp_12008/1]).
+-export([app/1,appup/1,build_std/1,build_map_module/1,otp_12008/1, build_app/1]).
 
 suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() -> 
-    [app,appup,build_std,build_map_module,otp_12008].
+    [app,appup,build_std,build_map_module,otp_12008, build_app].
 
 groups() -> 
     [].
@@ -95,3 +95,20 @@ otp_12008(Config) when is_list(Config) ->
     ok = edoc:files([Un2], Opts2),
     {'EXIT', error} = (catch edoc:files([Un3], Opts2)),
     ok.
+
+build_app(suite) -> [];
+build_app(doc) -> ["Build a local app with nested source directories"];
+build_app(Config) ->
+    DataDir  = ?config(data_dir, Config),
+    PrivDir  = ?config(priv_dir, Config),
+	OutDir = filename:join(PrivDir, "myapp"),
+	Src = filename:join(DataDir, "myapp"),
+
+	ok = edoc:application(myapp, Src, [{dir, OutDir}, {subpackages, false}]),
+	true = filelib:is_regular(filename:join(OutDir, "a.html")),
+	false = filelib:is_regular(filename:join(OutDir, "b.html")),
+
+	ok = edoc:application(myapp, Src, [{dir, OutDir}]),
+	true = filelib:is_regular(filename:join(OutDir, "a.html")),
+	true = filelib:is_regular(filename:join(OutDir, "b.html")),
+	ok.
diff --git a/lib/common_test/priv/bin/.gitignore b/lib/edoc/test/edoc_SUITE_data/myapp/doc/.dummy
index e69de29bb2..e69de29bb2 100644
--- a/lib/common_test/priv/bin/.gitignore
+++ b/lib/edoc/test/edoc_SUITE_data/myapp/doc/.dummy
diff --git a/lib/edoc/test/edoc_SUITE_data/myapp/src/a.erl b/lib/edoc/test/edoc_SUITE_data/myapp/src/a.erl
new file mode 100644
index 0000000000..1b5b704551
--- /dev/null
+++ b/lib/edoc/test/edoc_SUITE_data/myapp/src/a.erl
@@ -0,0 +1 @@
+-module(a).
diff --git a/lib/edoc/test/edoc_SUITE_data/myapp/src/src_1/b.erl b/lib/edoc/test/edoc_SUITE_data/myapp/src/src_1/b.erl
new file mode 100644
index 0000000000..6d6f15dfe5
--- /dev/null
+++ b/lib/edoc/test/edoc_SUITE_data/myapp/src/src_1/b.erl
@@ -0,0 +1 @@
+-module(b).
diff --git a/lib/edoc/vsn.mk b/lib/edoc/vsn.mk
index 24cfbf16d5..49a73331c6 100644
--- a/lib/edoc/vsn.mk
+++ b/lib/edoc/vsn.mk
@@ -1 +1 @@
-EDOC_VSN = 0.7.16
+EDOC_VSN = 0.7.17
diff --git a/lib/eldap/asn1/ELDAPv3.asn1 b/lib/eldap/asn1/ELDAPv3.asn1
index 72b87d7221..3fe7e815cc 100644
--- a/lib/eldap/asn1/ELDAPv3.asn1
+++ b/lib/eldap/asn1/ELDAPv3.asn1
@@ -274,5 +274,17 @@ IntermediateResponse ::= [APPLICATION 25] SEQUENCE {
      responseName     [0] LDAPOID OPTIONAL,
      responseValue    [1] OCTET STRING OPTIONAL }
 
+-- Extended syntax for Password Modify (RFC 3062, Section 2)
+
+-- passwdModifyOID OBJECT IDENTIFIER ::= 1.3.6.1.4.1.4203.1.11.1
+
+PasswdModifyRequestValue ::= SEQUENCE {
+     userIdentity     [0]  OCTET STRING OPTIONAL,
+     oldPasswd        [1]  OCTET STRING OPTIONAL,
+     newPasswd        [2]  OCTET STRING OPTIONAL }
+
+PasswdModifyResponseValue ::= SEQUENCE {
+     genPasswd        [0]     OCTET STRING OPTIONAL }
+
 END
 
diff --git a/lib/eldap/doc/src/eldap.xml b/lib/eldap/doc/src/eldap.xml
index 945379d5d2..253ba7c2ff 100644
--- a/lib/eldap/doc/src/eldap.xml
+++ b/lib/eldap/doc/src/eldap.xml
@@ -121,7 +121,7 @@ filter()    See present/1, substrings/2,
 	  <item>Any error responded from ssl:connect/3</item>
 	</taglist>
 	<p>The <c>Timeout</c> parameter is for the actual tls upgrade (phase 2) while the timeout in
-	<seealso marker="#open/2">erl_tar:open/2</seealso> is used for the initial negotiation about
+	<seealso marker="#open/2">eldap:open/2</seealso> is used for the initial negotiation about
 	upgrade (phase 1).
 	</p>
       </desc>
@@ -218,6 +218,46 @@ filter()    See present/1, substrings/2,
       </desc>
     </func>
     <func>
+      <name>modify_password(Handle, Dn, NewPasswd) -> ok | {ok, GenPasswd} | {error, Reason}</name>
+      <fsummary>Modify the password of a user.</fsummary>
+      <type>
+        <v>Dn = string()</v>
+        <v>NewPasswd = string()</v>
+      </type>
+      <desc>
+	<p>Modify the password of a user. See <seealso marker="#modify_password/4">modify_password/4</seealso>.</p>
+      </desc>
+    </func>
+    <func>
+      <name>modify_password(Handle, Dn, NewPasswd, OldPasswd) -> ok | {ok, GenPasswd} | {error, Reason}</name>
+      <fsummary>Modify the password of a user.</fsummary>
+      <type>
+        <v>Dn = string()</v>
+        <v>NewPasswd = string()</v>
+        <v>OldPasswd = string()</v>
+        <v>GenPasswd = string()</v>
+      </type>
+      <desc>
+	<p>Modify the password of a user.</p>
+        <list type="bulleted">
+          <item>
+            <p><c>Dn</c>. The user to modify. Should be "" if the
+            modify request is for the user of the LDAP session.</p>
+          </item>
+          <item>
+            <p><c>NewPasswd</c>. The new password to set. Should be ""
+            if the server is to generate the password. In this case,
+            the result will be <c>{ok, GenPasswd}</c>.</p>
+          </item>
+          <item>
+            <p><c>OldPasswd</c>. Sometimes required by server policy
+            for a user to change their password. If not required, use
+            <seealso marker="#modify_password/3">modify_password/3</seealso>.</p>
+          </item>
+        </list>
+      </desc>
+    </func>
+    <func>
       <name>modify_dn(Handle, Dn, NewRDN, DeleteOldRDN, NewSupDN) -> ok | {error, Reason}</name>
       <fsummary>Modify the DN of an entry.</fsummary>
       <type>
@@ -258,7 +298,7 @@ filter()    See present/1, substrings/2,
   search(Handle, [{base, "dc=example, dc=com"}, {filter, Filter}, {attributes, ["cn"]}]),
 	</pre>
 	<p>The <c>timeout</c> option in the <c>SearchOptions</c> is for the ldap server, while
-	the timeout in <seealso marker="#open/2">erl_tar:open/2</seealso> is used for each
+	the timeout in <seealso marker="#open/2">eldap:open/2</seealso> is used for each
 	individual request in the search operation.
 	</p>
       </desc>
@@ -363,7 +403,11 @@ filter()    See present/1, substrings/2,
 	<v>OptionalAttrs = [Attr]</v>
 	<v>Attr = {matchingRule,string()} | {type,string()} | {dnAttributes,boolean()}</v>
       </type>
-      <desc> <p>Creates an extensible match filter. For example, <c>eldap:extensibleMatch("Bar",[{type,"sn"},{matchingRule,"caseExactMatch"}]))</c> creates a filter which performs a <c>caseExactMatch</c> on the attribute <c>sn</c> and matches with the value <c>"Bar"</c>. The default value of <c>dnAttributes</c> is <c>false</c>.</p> </desc>
+      <desc> <p>Creates an extensible match filter. For example, </p>
+      <code>
+	eldap:extensibleMatch("Bar", [{type,"sn"}, {matchingRule,"caseExactMatch"}]))
+      </code>
+      <p>creates a filter which performs a <c>caseExactMatch</c> on the attribute <c>sn</c> and matches with the value <c>"Bar"</c>. The default value of <c>dnAttributes</c> is <c>false</c>.</p> </desc>
     </func>
     <func>
       <name>'and'([Filter]) -> filter()</name>
diff --git a/lib/eldap/src/eldap.erl b/lib/eldap/src/eldap.erl
index 80718bc106..ae47c815c9 100644
--- a/lib/eldap/src/eldap.erl
+++ b/lib/eldap/src/eldap.erl
@@ -12,6 +12,7 @@
 -vc('$Id$ ').
 -export([open/1,open/2,simple_bind/3,controlling_process/2,
 	 start_tls/2, start_tls/3,
+         modify_password/3, modify_password/4,
 	 getopts/2,
 	 baseObject/0,singleLevel/0,wholeSubtree/0,close/1,
 	 equalityMatch/2,greaterOrEqual/2,lessOrEqual/2,
@@ -94,6 +95,23 @@ start_tls(Handle, TlsOptions, Timeout) ->
     recv(Handle).
 
 %%% --------------------------------------------------------------------
+%%% Modify the password of a user.
+%%%
+%%% Dn        - Name of the entry to modify. If empty, the session user.
+%%% NewPasswd - New password. If empty, the server returns a new password.
+%%% OldPasswd - Original password for server verification, may be empty.
+%%%
+%%% Returns: ok | {ok, GenPasswd} | {error, term()}
+%%% --------------------------------------------------------------------
+modify_password(Handle, Dn, NewPasswd) ->
+    modify_password(Handle, Dn, NewPasswd, []).
+
+modify_password(Handle, Dn, NewPasswd, OldPasswd)
+  when is_pid(Handle), is_list(Dn), is_list(NewPasswd), is_list(OldPasswd) ->
+    send(Handle, {passwd_modify,optional(Dn),optional(NewPasswd),optional(OldPasswd)}),
+    recv(Handle).
+
+%%% --------------------------------------------------------------------
 %%% Ask for option values on the socket.
 %%% Warning: This is an undocumented function for testing purposes only.
 %%%          Use at own risk...
@@ -507,6 +525,11 @@ loop(Cpid, Data) ->
 	    send(From,Res),
 	    ?MODULE:loop(Cpid, NewData);
 
+        {From, {passwd_modify,Dn,NewPasswd,OldPasswd}} ->
+            {Res,NewData} = do_passwd_modify(Data, Dn, NewPasswd, OldPasswd),
+            send(From, Res),
+            ?MODULE:loop(Cpid, NewData);
+
 	{_From, close} ->
 	    unlink(Cpid),
 	    exit(closed);
@@ -797,6 +820,60 @@ do_modify_0(Data, Obj, Mod) ->
     check_reply(Data#eldap{id = Id}, Resp, modifyResponse).
 
 %%% --------------------------------------------------------------------
+%%% PasswdModifyRequest
+%%% --------------------------------------------------------------------
+
+-define(PASSWD_MODIFY_OID, "1.3.6.1.4.1.4203.1.11.1").
+
+do_passwd_modify(Data, Dn, NewPasswd, OldPasswd) ->
+    case catch do_passwd_modify_0(Data, Dn, NewPasswd, OldPasswd) of
+	{error,Emsg}        -> {ldap_closed_p(Data, Emsg),Data};
+	{'EXIT',Error}      -> {ldap_closed_p(Data, Error),Data};
+	{ok,NewData}        -> {ok,NewData};
+        {ok,Passwd,NewData} -> {{ok, Passwd},NewData};
+	Else                -> {ldap_closed_p(Data, Else),Data}
+    end.
+
+do_passwd_modify_0(Data, Dn, NewPasswd, OldPasswd) ->
+    Req = #'PasswdModifyRequestValue'{userIdentity = Dn,
+                                      oldPasswd = OldPasswd,
+                                      newPasswd = NewPasswd},
+    log2(Data, "modify password request = ~p~n", [Req]),
+    {ok, Bytes} = 'ELDAPv3':encode('PasswdModifyRequestValue', Req),
+    ExtReq = #'ExtendedRequest'{requestName = ?PASSWD_MODIFY_OID,
+                             requestValue = Bytes},
+    Id = bump_id(Data),
+    log2(Data, "extended request = ~p~n", [ExtReq]),
+    Reply = request(Data#eldap.fd, Data, Id, {extendedReq, ExtReq}),
+    log2(Data, "modify password reply = ~p~n", [Reply]),
+    exec_passwd_modify_reply(Data#eldap{id = Id}, Reply).
+
+exec_passwd_modify_reply(Data, {ok,Msg}) when
+  Msg#'LDAPMessage'.messageID == Data#eldap.id ->
+    case Msg#'LDAPMessage'.protocolOp of
+	{extendedResp, Result} ->
+	    case Result#'ExtendedResponse'.resultCode of
+		success ->
+                    case Result#'ExtendedResponse'.responseValue of
+                        asn1_NOVALUE ->
+                            {ok, Data};
+                        Value ->
+                            case 'ELDAPv3':decode('PasswdModifyResponseValue', Value) of
+                                {ok,#'PasswdModifyResponseValue'{genPasswd = Passwd}} ->
+                                    {ok, Passwd, Data};
+                                Error ->
+                                    throw(Error)
+                            end
+                    end;
+		Error ->
+		    {error, {response,Error}}
+	    end;
+	Other -> {error, Other}
+    end;
+exec_passwd_modify_reply(_, Error) ->
+    {error, Error}.
+
+%%% --------------------------------------------------------------------
 %%% modifyDNRequest
 %%% --------------------------------------------------------------------
 
diff --git a/lib/eldap/test/eldap_basic_SUITE.erl b/lib/eldap/test/eldap_basic_SUITE.erl
index 137c61b2d9..8d754e934c 100644
--- a/lib/eldap/test/eldap_basic_SUITE.erl
+++ b/lib/eldap/test/eldap_basic_SUITE.erl
@@ -896,9 +896,9 @@ client_timeout(Fun, Config) ->
     T = 1000,
     case eldap:open([Host], [{timeout,T},{port,Port}|Opts]) of
 	{ok,H} ->
-	    T0 = now(),
+	    T0 = erlang:monotonic_time(),
 	    {error,{gen_tcp_error,timeout}} = Fun(H),
-	    T_op = diff(T0,now()),
+	    T_op = ms_passed(T0),
 	    ct:log("Time = ~p, Timeout spec = ~p",[T_op,T]),
 	    if
 		T_op < T ->
@@ -910,8 +910,12 @@ client_timeout(Fun, Config) ->
 	Other -> ct:fail("eldap:open failed: ~p",[Other])
     end.
 
-diff({M1,S1,U1},{M2,S2,U2}) ->
-    ( ((M2-M1)*1000 + (S2-S1))*1000 + (U2-U1) ).
+%% Help function, elapsed milliseconds since T0
+ms_passed(T0) ->
+    %% OTP 18
+    erlang:convert_time_unit(erlang:monotonic_time() - T0,
+			     native,
+			     micro_seconds) / 1000.
 
 %%%----------------------------------------------------------------
 init_ssl_certs_et_al(Config) ->
diff --git a/lib/eldap/vsn.mk b/lib/eldap/vsn.mk
index adca41ed63..105a2bcdbb 100644
--- a/lib/eldap/vsn.mk
+++ b/lib/eldap/vsn.mk
@@ -1 +1 @@
-ELDAP_VSN = 1.1.1
+ELDAP_VSN = 1.2
diff --git a/lib/erl_docgen/priv/bin/specs_gen.escript b/lib/erl_docgen/priv/bin/specs_gen.escript
index 156311565c..e8a8f14e3a 100644
--- a/lib/erl_docgen/priv/bin/specs_gen.escript
+++ b/lib/erl_docgen/priv/bin/specs_gen.escript
@@ -97,7 +97,7 @@ read_file(File, Opts) ->
     edoc:read_source(File, Opts).
 
 extract(File, Forms, Opts) ->
-    Env = edoc_lib:get_doc_env([], [], [], _Opts=[]),
+    Env = edoc_lib:get_doc_env([], [], _Opts=[]),
     {_Module, Doc} = edoc_extract:source(Forms, File, Env, Opts),
     Doc.
 
diff --git a/lib/erl_docgen/priv/bin/xml_from_edoc.escript b/lib/erl_docgen/priv/bin/xml_from_edoc.escript
index 65a580dca2..007546e7ba 100755
--- a/lib/erl_docgen/priv/bin/xml_from_edoc.escript
+++ b/lib/erl_docgen/priv/bin/xml_from_edoc.escript
@@ -117,7 +117,7 @@ users_guide(File, Args) ->
 	    Text = edoc_lib:run_layout(F, Opts),
 	    
 	    OutFile = "chapter" ++ Args#args.suffix,
-	    edoc_lib:write_file(Text, ".", OutFile, '', Encoding);
+	    edoc_lib:write_file(Text, ".", OutFile, Encoding);
 	false ->
 	    io:format("~s: not a regular file\n", [File]),
 	    usage()
diff --git a/lib/erl_docgen/priv/css/otp_doc.css b/lib/erl_docgen/priv/css/otp_doc.css
index c56de378f4..0b531db701 100644
--- a/lib/erl_docgen/priv/css/otp_doc.css
+++ b/lib/erl_docgen/priv/css/otp_doc.css
@@ -66,7 +66,7 @@ a:visited      { color: blue; text-decoration: none }
 span.bold_code   { font-family: Courier, monospace; font-weight: bold }
 span.code        { font-family: Courier, monospace; font-weight: normal }
 
-.note, .warning {
+.note, .warning, .do, .dont {
   border: solid black 1px;
   margin: 1em 3em;
 }
@@ -96,10 +96,41 @@ span.code        { font-family: Courier, monospace; font-weight: normal }
   font-size: 90%;
   padding: 5px 10px;
 }
+.do .label {
+  background: #30d42a;
+  color: white;
+  font-weight: bold;
+  padding: 5px 10px;
+}
+.do .content {
+  background: #eafeea;
+  color: black;
+  line-height: 120%;
+  font-size: 90%;
+  padding: 5px 10px;
+}
+.dont .label {
+  background: #C00;
+  color: white;
+  font-weight: bold;
+  padding: 5px 10px;
+}
+.dont .content {
+  background: #FFF0F0;
+  color: black;
+  line-height: 120%;
+  font-size: 90%;
+  padding: 5px 10px;
+}
 .example {
   background-color:#eeeeff;
   padding: 0px 10px;
 }
+.extrafrontpageinfo {
+  color: #C00;
+  font-weight: bold;
+  font-size: 120%;
+}
 
 pre          { font-family: Courier, monospace; font-weight: normal }
 
diff --git a/lib/erl_docgen/priv/dtd/application.dtd b/lib/erl_docgen/priv/dtd/application.dtd
index 8a1e8832ec..fcadaced72 100644
--- a/lib/erl_docgen/priv/dtd/application.dtd
+++ b/lib/erl_docgen/priv/dtd/application.dtd
@@ -24,6 +24,6 @@
 %common.header;
 
 <!ELEMENT application         (header,description?,include+) >
-<!ELEMENT description	      (%block;|quote|br|marker|warning|note)* >
+<!ELEMENT description	      (%block;|quote|br|marker|warning|note|dont|do)* >
 <!ELEMENT include             EMPTY >
 <!ATTLIST include             file CDATA #REQUIRED>
diff --git a/lib/erl_docgen/priv/dtd/book.dtd b/lib/erl_docgen/priv/dtd/book.dtd
index bb89a6d255..ef723a9eed 100644
--- a/lib/erl_docgen/priv/dtd/book.dtd
+++ b/lib/erl_docgen/priv/dtd/book.dtd
@@ -38,7 +38,7 @@
 
 <!ELEMENT pagetext	      (#PCDATA) >
 <!ELEMENT preamble	      (contents?,preface?) >
-<!ELEMENT preface	      (title?,(%block;|quote|br|marker|warning|note|table)*) >
+<!ELEMENT preface	      (title?,(%block;|quote|br|marker|warning|note|dont|do|table)*) >
 
 <!ELEMENT insidecover         (#PCDATA|br|theheader|vfill|vspace|tt|bold|
 			       include)* >
@@ -67,7 +67,7 @@
 <!ELEMENT onepart             (title?,description?,include+) >
 <!ATTLIST onepart             lift (yes|no) "no" >
 
-<!ELEMENT description	      (%block;|quote|br|marker|warning|note)* >
+<!ELEMENT description	      (%block;|quote|br|marker|warning|note|dont|do)* >
 
 <!ELEMENT include             EMPTY >
 <!ATTLIST include             file CDATA #REQUIRED>
diff --git a/lib/erl_docgen/priv/dtd/chapter.dtd b/lib/erl_docgen/priv/dtd/chapter.dtd
index eb2c96b04f..4beff6cc54 100644
--- a/lib/erl_docgen/priv/dtd/chapter.dtd
+++ b/lib/erl_docgen/priv/dtd/chapter.dtd
@@ -29,8 +29,8 @@
 
 <!-- Structure -->
 
-<!ELEMENT chapter             (header,(%block;|quote|warning|note|br|
+<!ELEMENT chapter             (header,(%block;|quote|warning|note|dont|do|br|
                                image|marker|table)*,section+) >
 <!ELEMENT section             (marker*,title,
-                               (%block;|quote|warning|note|br|image|marker|
+                               (%block;|quote|warning|note|dont|do|br|image|marker|
                                 table|section)*) >
diff --git a/lib/erl_docgen/priv/dtd/common.dtd b/lib/erl_docgen/priv/dtd/common.dtd
index f999ef8ea4..92d814e0f1 100644
--- a/lib/erl_docgen/priv/dtd/common.dtd
+++ b/lib/erl_docgen/priv/dtd/common.dtd
@@ -34,6 +34,8 @@
 <!ELEMENT quote               (p)* >
 <!ELEMENT warning             (%block;|quote|br|marker)* >
 <!ELEMENT note                (%block;|quote|br|marker)* >
+<!ELEMENT dont                (%block;|quote|br|marker)* >
+<!ELEMENT do                  (%block;|quote|br|marker)* >
 <!ELEMENT c                   (#PCDATA) >
 <!ELEMENT em                  (#PCDATA|c)* >
 
diff --git a/lib/erl_docgen/priv/dtd/common.refs.dtd b/lib/erl_docgen/priv/dtd/common.refs.dtd
index 93592607df..a08b9e89d4 100644
--- a/lib/erl_docgen/priv/dtd/common.refs.dtd
+++ b/lib/erl_docgen/priv/dtd/common.refs.dtd
@@ -24,7 +24,7 @@
 <!ENTITY % common.header SYSTEM "common.header.dtd" >
 %common.header;
 
-<!ELEMENT description         (%block;|quote|br|marker|warning|note)* >
+<!ELEMENT description         (%block;|quote|br|marker|warning|note|dont|do)* >
 <!ELEMENT funcs               (func)+ >
 <!ELEMENT func                (name+,type_desc*,fsummary,type?,desc?) >
 <!-- ELEMENT name is defined in each ref dtd -->
@@ -34,12 +34,12 @@
                                name_i CDATA #IMPLIED>
 <!ELEMENT v                   (#PCDATA) >
 <!ELEMENT d                   (#PCDATA|c|em)* >
-<!ELEMENT desc                (%block;|quote|br|marker|warning|note|anno)* >
+<!ELEMENT desc                (%block;|quote|br|marker|warning|note|dont|do|anno)* >
 <!ELEMENT authors             (aname,email)+ >
 <!ELEMENT aname               (#PCDATA) >
 <!ELEMENT email               (#PCDATA) >
 <!ELEMENT section             (marker*,title,(%block;|quote|br|marker|
-                               warning|note)*) >
+                               warning|note|dont|do)*) >
 <!ELEMENT datatypes           (datatype)+ >
 <!ELEMENT datatype            (name+,desc?) >
 <!ELEMENT type_desc           (#PCDATA) >
diff --git a/lib/erl_docgen/priv/dtd/part.dtd b/lib/erl_docgen/priv/dtd/part.dtd
index 3f97199042..79f68c415d 100644
--- a/lib/erl_docgen/priv/dtd/part.dtd
+++ b/lib/erl_docgen/priv/dtd/part.dtd
@@ -24,6 +24,6 @@
 %common.header;
 
 <!ELEMENT part                (header,description?,include+) >
-<!ELEMENT description         (%block;|quote|br|marker|warning|note)* >
+<!ELEMENT description         (%block;|quote|br|marker|warning|note|dont|do)* >
 <!ELEMENT include             EMPTY >
 <!ATTLIST include             file CDATA #REQUIRED>
diff --git a/lib/erl_docgen/priv/dtd/report.dtd b/lib/erl_docgen/priv/dtd/report.dtd
index 3d07e6e5a7..eb463f8867 100644
--- a/lib/erl_docgen/priv/dtd/report.dtd
+++ b/lib/erl_docgen/priv/dtd/report.dtd
@@ -48,7 +48,7 @@
 <!ELEMENT file                (#PCDATA) >
 
 <!ELEMENT section             (marker*,title,
-                               (%block;|quote|warning|note|br|image|marker|
+                               (%block;|quote|warning|note|dont|do|br|image|marker|
                                 table|section)*) >
 <!ELEMENT p                   (%inline;|index)* >
 <!ELEMENT pre                 (#PCDATA|seealso|url|input)* >
@@ -58,6 +58,8 @@
 <!ELEMENT quote               (p)* >
 <!ELEMENT warning             (%block;|quote|br|image|marker|table)* >
 <!ELEMENT note                (%block;|quote|br|image|marker|table)* >
+<!ELEMENT dont                (%block;|quote|br|image|marker|table)* >
+<!ELEMENT do                  (%block;|quote|br|image|marker|table)* >
 <!ELEMENT i                   (#PCDATA|b|c|em)* >
 <!ELEMENT b                   (#PCDATA|i|c|em)* >
 <!ELEMENT c                   (#PCDATA) >
diff --git a/lib/erl_docgen/priv/xsl/db_html.xsl b/lib/erl_docgen/priv/xsl/db_html.xsl
index ab5f24c406..3529924957 100644
--- a/lib/erl_docgen/priv/xsl/db_html.xsl
+++ b/lib/erl_docgen/priv/xsl/db_html.xsl
@@ -952,6 +952,36 @@
     </div>
   </xsl:template>
 
+  <!-- Do -->
+  <xsl:template match="do">
+    <xsl:param name="chapnum"/>
+    <div class="do">
+      <div class="label">Do</div>
+      <div class="content">
+        <p>
+          <xsl:apply-templates>
+            <xsl:with-param name="chapnum" select="$chapnum"/>
+          </xsl:apply-templates>
+        </p>
+      </div>
+    </div>
+  </xsl:template>
+
+  <!-- Dont -->
+  <xsl:template match="dont">
+    <xsl:param name="chapnum"/>
+    <div class="dont">
+      <div class="label">Don't</div>
+      <div class="content">
+        <p>
+          <xsl:apply-templates>
+            <xsl:with-param name="chapnum" select="$chapnum"/>
+          </xsl:apply-templates>
+        </p>
+      </div>
+    </div>
+  </xsl:template>
+
  <!-- Paragraph -->
   <xsl:template match="p">
     <p>
@@ -1102,6 +1132,9 @@
 
     <center><h4>Version <xsl:value-of select="$appver"/></h4></center>
     <center><h4><xsl:value-of select="$gendate"/></h4></center>
+    <div class="extrafrontpageinfo">
+    <center><xsl:value-of select="$extra_front_page_info"/></center>
+    </div>
 
     <xsl:apply-templates select="chapter"/>
 
@@ -1267,6 +1300,9 @@
 
     <center><h4>Version <xsl:value-of select="$appver"/></h4></center>
     <center><h4><xsl:value-of select="$gendate"/></h4></center>
+    <div class="extrafrontpageinfo">
+    <center><xsl:value-of select="$extra_front_page_info"/></center>
+    </div>
 
     <xsl:apply-templates select="erlref|cref|comref|fileref|appref"/>
 
@@ -2089,6 +2125,9 @@
 
     <center><h4>Version <xsl:value-of select="$appver"/></h4></center>
     <center><h4><xsl:value-of select="$gendate"/></h4></center>
+    <div class="extrafrontpageinfo">
+    <center><xsl:value-of select="$extra_front_page_info"/></center>
+    </div>
 
     <xsl:apply-templates select="chapter"/>
 
diff --git a/lib/erl_docgen/priv/xsl/db_man.xsl b/lib/erl_docgen/priv/xsl/db_man.xsl
index 3bcdd11c35..0caaba560f 100644
--- a/lib/erl_docgen/priv/xsl/db_man.xsl
+++ b/lib/erl_docgen/priv/xsl/db_man.xsl
@@ -543,7 +543,29 @@
     <xsl:text>&#10;</xsl:text>
   </xsl:template>
 
-  <xsl:template match="warning/p | note/p">
+  <!-- Do -->
+  <xsl:template match="do">
+    <xsl:text>&#10;.LP&#10;</xsl:text>
+    <xsl:text>&#10;.RS -4</xsl:text>
+    <xsl:text>&#10;.B&#10;</xsl:text>
+    <xsl:text>Do:</xsl:text>
+    <xsl:text>&#10;.RE</xsl:text>
+    <xsl:apply-templates/>
+    <xsl:text>&#10;</xsl:text>
+  </xsl:template>
+
+  <!-- Dont -->
+  <xsl:template match="dont">
+    <xsl:text>&#10;.LP&#10;</xsl:text>
+    <xsl:text>&#10;.RS -4</xsl:text>
+    <xsl:text>&#10;.B&#10;</xsl:text>
+    <xsl:text>Dont:</xsl:text>
+    <xsl:text>&#10;.RE</xsl:text>
+    <xsl:apply-templates/>
+    <xsl:text>&#10;</xsl:text>
+  </xsl:template>
+
+  <xsl:template match="warning/p | note/p | dont/p | do/p">
     <xsl:variable name="content">
       <xsl:text>&#10;</xsl:text>
       <xsl:apply-templates/>
diff --git a/lib/erl_docgen/priv/xsl/db_pdf.xsl b/lib/erl_docgen/priv/xsl/db_pdf.xsl
index c15b16eb5b..ccf96053aa 100644
--- a/lib/erl_docgen/priv/xsl/db_pdf.xsl
+++ b/lib/erl_docgen/priv/xsl/db_pdf.xsl
@@ -671,6 +671,10 @@
         <fo:block xsl:use-attribute-sets="cover.version">
           <xsl:value-of select="$gendate"/>
         </fo:block>
+        <fo:block xsl:use-attribute-sets="cover.extrainfo">
+          <xsl:value-of select="$extra_front_page_info"/>
+        </fo:block>
+
 
         <!-- Inner cover (copyright notice) -->
         <fo:block break-before="page"
@@ -1138,6 +1142,31 @@
     </fo:block>
   </xsl:template>
 
+  <!-- Do -->
+  <xsl:template match="do">
+    <xsl:param name="partnum"/>
+    <fo:block xsl:use-attribute-sets="do">
+        <fo:block xsl:use-attribute-sets="note-warning-title">
+            <xsl:text>Do:</xsl:text>
+        </fo:block>
+      <xsl:apply-templates>
+        <xsl:with-param name="partnum" select="$partnum"/>
+      </xsl:apply-templates>
+    </fo:block>
+  </xsl:template>
+
+  <!-- Dont -->
+  <xsl:template match="dont">
+    <xsl:param name="partnum"/>
+    <fo:block xsl:use-attribute-sets="dont">
+        <fo:block xsl:use-attribute-sets="note-warning-title">
+            <xsl:text>Don't:</xsl:text>
+        </fo:block>
+      <xsl:apply-templates>
+        <xsl:with-param name="partnum" select="$partnum"/>
+      </xsl:apply-templates>
+    </fo:block>
+  </xsl:template>
 
  <!-- Paragraph -->
   <xsl:template match="p">
diff --git a/lib/erl_docgen/priv/xsl/db_pdf_params.xsl b/lib/erl_docgen/priv/xsl/db_pdf_params.xsl
index 2e3b22acf4..a4814581c2 100644
--- a/lib/erl_docgen/priv/xsl/db_pdf_params.xsl
+++ b/lib/erl_docgen/priv/xsl/db_pdf_params.xsl
@@ -98,6 +98,14 @@
     <xsl:attribute name="text-align">end</xsl:attribute>
   </xsl:attribute-set>
 
+  <xsl:attribute-set name="cover.extrainfo">
+    <xsl:attribute name="padding-before">2.5em</xsl:attribute>
+    <xsl:attribute name="font-size">1.33em</xsl:attribute>
+    <xsl:attribute name="font-weight">bold</xsl:attribute>
+    <xsl:attribute name="color">#C00</xsl:attribute>
+    <xsl:attribute name="text-align">end</xsl:attribute>
+  </xsl:attribute-set>
+
   <xsl:attribute-set name="cover.inner.copyright">
     <xsl:attribute name="border-before-style">solid</xsl:attribute>
     <xsl:attribute name="border-before-width">1pt</xsl:attribute>
@@ -289,6 +297,33 @@
     <xsl:attribute name="keep-together.within-page">always</xsl:attribute>
   </xsl:attribute-set>
 
+<xsl:attribute-set name="do">
+    <xsl:attribute name="background-color">#d0fed0</xsl:attribute>
+    <xsl:attribute name="space-after">1em</xsl:attribute>
+    <xsl:attribute name="space-before">2em</xsl:attribute>
+    <xsl:attribute name="text-align">justify</xsl:attribute>
+    <xsl:attribute name="padding-before">1em</xsl:attribute>
+    <xsl:attribute name="padding-after">0.3em</xsl:attribute>
+    <xsl:attribute name="padding-left">0.5em</xsl:attribute>
+    <xsl:attribute name="padding-right">0.5em</xsl:attribute>
+    <xsl:attribute name="margin-left">0.5em</xsl:attribute>
+    <xsl:attribute name="margin-right">0.5em</xsl:attribute>
+    <xsl:attribute name="keep-together.within-page">always</xsl:attribute>
+  </xsl:attribute-set>
+
+<xsl:attribute-set name="dont">
+  <xsl:attribute name="background-color">#ffd6d6</xsl:attribute> 
+    <xsl:attribute name="space-after">1em</xsl:attribute>
+    <xsl:attribute name="space-before">2em</xsl:attribute>
+    <xsl:attribute name="text-align">justify</xsl:attribute>
+    <xsl:attribute name="padding-before">1em</xsl:attribute>
+    <xsl:attribute name="padding-after">0.3em</xsl:attribute>
+    <xsl:attribute name="padding-left">0.5em</xsl:attribute>
+    <xsl:attribute name="padding-right">0.5em</xsl:attribute>
+    <xsl:attribute name="margin-left">0.5em</xsl:attribute>
+    <xsl:attribute name="margin-right">0.5em</xsl:attribute>
+    <xsl:attribute name="keep-together.within-page">always</xsl:attribute>
+  </xsl:attribute-set>
 
   <xsl:attribute-set name="note-warning-title">
     <xsl:attribute name="font-size">1.33em</xsl:attribute>
diff --git a/lib/erl_docgen/src/docgen_otp_specs.erl b/lib/erl_docgen/src/docgen_otp_specs.erl
index 1075c47801..b62e69529b 100644
--- a/lib/erl_docgen/src/docgen_otp_specs.erl
+++ b/lib/erl_docgen/src/docgen_otp_specs.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -202,7 +202,8 @@ t_clause(Name, Type) ->
 pp_clause(Pre, Type) ->
     Types = ot_utype([Type]),
     Atom = lists:duplicate(iolist_size(Pre), $a),
-    L1 = erl_pp:attribute({attribute,0,spec,{{list_to_atom(Atom),0},[Types]}}),
+    Attr = {attribute,0,spec,{{list_to_atom(Atom),0},[Types]}},
+    L1 = erl_pp:attribute(erl_parse:new_anno(Attr)),
     "-spec " ++ L2 = lists:flatten(L1),
     L3 = Pre ++ lists:nthtail(length(Atom), L2),
     re:replace(L3, "\n      ", "\n", [{return,list},global]).
@@ -222,7 +223,8 @@ format_type(_Name, Type, _Opts) ->
 
 pp_type(Prefix, Type) ->
     Atom = list_to_atom(lists:duplicate(iolist_size(Prefix), $a)),
-    L1 = erl_pp:attribute({attribute,0,type,{Atom,ot_utype(Type),[]}}),
+    Attr = {attribute,0,type,{Atom,ot_utype(Type),[]}},
+    L1 = erl_pp:attribute(erl_parse:new_anno(Attr)),
     {L2,N} = case lists:dropwhile(fun(C) -> C =/= $: end, lists:flatten(L1)) of
                  ":: " ++ L3 -> {L3,9}; % compensation for extra "()" and ":"
                  "::\n" ++ L3 -> {"\n"++L3,6}
@@ -569,8 +571,8 @@ ot_var(E) ->
     {var,0,list_to_atom(get_attrval(name, E))}.
 
 ot_atom(E) ->
-    {ok, [Atom], _} = erl_scan:string(get_attrval(value, E), 0),
-    Atom.
+    {ok, [{atom,A,Name}], _} = erl_scan:string(get_attrval(value, E), 0),
+    {atom,erl_anno:line(A),Name}.
 
 ot_integer(E) ->
     {integer,0,list_to_integer(get_attrval(value, E))}.
@@ -616,7 +618,7 @@ ot_map(Es) ->
     {type,0,map,[ot_map_field(E) || E <- get_elem(map_field,Es)]}.
 
 ot_map_field(#xmlElement{content=[K,V]}) ->
-    {type,0,map_field_assoc, ot_utype_elem(K), ot_utype_elem(V)}.
+    {type,0,map_field_assoc,[ot_utype_elem(K),ot_utype_elem(V)]}.
 
 ot_fun(Es) ->
     Range = ot_utype(get_elem(type, Es)),
diff --git a/lib/erl_docgen/src/erl_docgen.app.src b/lib/erl_docgen/src/erl_docgen.app.src
index e2830b2692..d63d880d89 100644
--- a/lib/erl_docgen/src/erl_docgen.app.src
+++ b/lib/erl_docgen/src/erl_docgen.app.src
@@ -9,6 +9,6 @@
   {registered,[]},
   {applications, [kernel,stdlib]},
   {env, []},
-  {runtime_dependencies, ["xmerl-1.3.7","stdlib-2.0","edoc-0.7.13","erts-6.0"]}
+  {runtime_dependencies, ["xmerl-1.3.7","stdlib-2.5","edoc-0.7.13","erts-6.0"]}
  ]
 }.
diff --git a/lib/erl_docgen/vsn.mk b/lib/erl_docgen/vsn.mk
index 8957d6ac40..2abd3d2b7e 100644
--- a/lib/erl_docgen/vsn.mk
+++ b/lib/erl_docgen/vsn.mk
@@ -1 +1 @@
-ERL_DOCGEN_VSN = 0.3.7
+ERL_DOCGEN_VSN = 0.4
diff --git a/lib/erl_interface/doc/src/ei.xml b/lib/erl_interface/doc/src/ei.xml
index 90495eebd6..32e0e0e2d8 100644
--- a/lib/erl_interface/doc/src/ei.xml
+++ b/lib/erl_interface/doc/src/ei.xml
@@ -202,6 +202,9 @@ typedef enum {
       <desc>
         <p>Encodes a double-precision (64 bit) floating point number in
           the binary format.</p>
+      <p>
+          The function returns <c><![CDATA[-1]]></c> if the floating point number is not finite.
+      </p>
       </desc>
     </func>
     <func>
diff --git a/lib/erl_interface/doc/src/erl_eterm.xml b/lib/erl_interface/doc/src/erl_eterm.xml
index 429f77501c..2152192696 100644
--- a/lib/erl_interface/doc/src/erl_eterm.xml
+++ b/lib/erl_interface/doc/src/erl_eterm.xml
@@ -371,9 +371,11 @@ iohead ::= Binary
         <p><c><![CDATA[f]]></c> is a value to be converted to an Erlang float.</p>
         <p></p>
         <p>The function returns an Erlang float object with the value
-          specified in <c><![CDATA[f]]></c>.</p>
+            specified in <c><![CDATA[f]]></c> or <c><![CDATA[NULL]]></c> if
+            <c><![CDATA[f]]></c> is not finite.
+        </p>
         <p><c><![CDATA[ERL_FLOAT_VALUE(t)]]></c> can be used to retrieve the
-          value from an Erlang float.</p>
+            value from an Erlang float.</p>
       </desc>
     </func>
     <func>
diff --git a/lib/erl_interface/src/decode/decode_big.c b/lib/erl_interface/src/decode/decode_big.c
index 477880b331..016ed2eac2 100644
--- a/lib/erl_interface/src/decode/decode_big.c
+++ b/lib/erl_interface/src/decode/decode_big.c
@@ -150,27 +150,6 @@ int ei_big_comp(erlang_big *x, erlang_big *y)
 #define INLINED_FP_CONVERSION 1
 #endif
 
-#ifdef USE_ISINF_ISNAN		/* simulate finite() */
-#  define isfinite(f) (!isinf(f) && !isnan(f))
-#  define HAVE_ISFINITE
-#elif defined(__GNUC__) && defined(HAVE_FINITE)
-/* We use finite in gcc as it emits assembler instead of
-   the function call that isfinite emits. The assembler is
-   significantly faster. */
-#  ifdef isfinite
-#     undef isfinite
-#  endif
-#  define isfinite finite
-#  ifndef HAVE_ISFINITE
-#    define HAVE_ISFINITE
-#  endif
-#elif defined(isfinite) && !defined(HAVE_ISFINITE)
-#  define HAVE_ISFINITE
-#elif !defined(HAVE_ISFINITE) && defined(HAVE_FINITE)
-#  define isfinite finite
-#  define HAVE_ISFINITE
-#endif
-
 #ifdef NO_FPE_SIGNALS
 #  define ERTS_FP_CHECK_INIT() do {} while (0)
 #  define ERTS_FP_ERROR(f, Action) if (!isfinite(f)) { Action; } else {}
diff --git a/lib/erl_interface/src/encode/encode_double.c b/lib/erl_interface/src/encode/encode_double.c
index 148a49f73a..72a1c60808 100644
--- a/lib/erl_interface/src/encode/encode_double.c
+++ b/lib/erl_interface/src/encode/encode_double.c
@@ -21,12 +21,24 @@
 #include "eidef.h"
 #include "eiext.h"
 #include "putget.h"
+#if defined(HAVE_ISFINITE)
+#include <math.h>
+#endif
 
 int ei_encode_double(char *buf, int *index, double p)
 {
   char *s = buf + *index;
   char *s0 = s;
 
+  /* Erlang does not handle Inf and NaN, so we return an error rather
+   * than letting the Erlang VM complain about a bad external
+   * term. */
+#if defined(HAVE_ISFINITE)
+  if(!isfinite(p)) {
+      return -1;
+  }
+#endif
+
   if (!buf)
     s += 9;
   else {
diff --git a/lib/erl_interface/src/legacy/erl_eterm.c b/lib/erl_interface/src/legacy/erl_eterm.c
index 636d26b24b..66cca7decf 100644
--- a/lib/erl_interface/src/legacy/erl_eterm.c
+++ b/lib/erl_interface/src/legacy/erl_eterm.c
@@ -26,6 +26,9 @@
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>
+#if defined(HAVE_ISFINITE)
+#include <math.h>
+#endif
 
 #include "ei_locking.h"
 #include "ei_resolve.h"
@@ -125,6 +128,15 @@ ETERM *erl_mk_float (double d)
 {
     ETERM *ep;
 
+#if defined(HAVE_ISFINITE)
+    /* Erlang does not handle Inf and NaN, so we return an error
+     * rather than letting the Erlang VM complain about a bad external
+     * term. */
+    if(!isfinite(d)) {
+        return NULL;
+    }
+#endif
+
     ep = erl_alloc_eterm(ERL_FLOAT);
     ERL_COUNT(ep) = 1;
     ERL_FLOAT_VALUE(ep) = d;
diff --git a/lib/erl_interface/src/misc/eidef.h b/lib/erl_interface/src/misc/eidef.h
index bd3d0bf631..e0dc325b48 100644
--- a/lib/erl_interface/src/misc/eidef.h
+++ b/lib/erl_interface/src/misc/eidef.h
@@ -41,6 +41,27 @@
 typedef int socklen_t;
 #endif
 
+#ifdef USE_ISINF_ISNAN		/* simulate finite() */
+#  define isfinite(f) (!isinf(f) && !isnan(f))
+#  define HAVE_ISFINITE
+#elif defined(__GNUC__) && defined(HAVE_FINITE)
+/* We use finite in gcc as it emits assembler instead of
+   the function call that isfinite emits. The assembler is
+   significantly faster. */
+#  ifdef isfinite
+#     undef isfinite
+#  endif
+#  define isfinite finite
+#  ifndef HAVE_ISFINITE
+#    define HAVE_ISFINITE
+#  endif
+#elif defined(isfinite) && !defined(HAVE_ISFINITE)
+#  define HAVE_ISFINITE
+#elif !defined(HAVE_ISFINITE) && defined(HAVE_FINITE)
+#  define isfinite finite
+#  define HAVE_ISFINITE
+#endif
+
 typedef unsigned char  uint8;	/* FIXME use configure */
 typedef unsigned short uint16;
 typedef unsigned int   uint32;
diff --git a/lib/erl_interface/test/ei_encode_SUITE.erl b/lib/erl_interface/test/ei_encode_SUITE.erl
index 50dc8b6a3c..86e0d8cd08 100644
--- a/lib/erl_interface/test/ei_encode_SUITE.erl
+++ b/lib/erl_interface/test/ei_encode_SUITE.erl
@@ -174,7 +174,7 @@ test_ei_encode_ulonglong(Config) when is_list(Config) ->
 
 
 %% ######################################################################## %%
-%% A "character" for us is an 8 bit integer, alwasy positive, i.e.
+%% A "character" for us is an 8 bit integer, always positive, i.e.
 %% it is unsigned.
 %% FIXME maybe the API should change to use "unsigned char" to be clear?!
 
diff --git a/lib/et/src/Makefile b/lib/et/src/Makefile
index 377e593712..b6873371ed 100644
--- a/lib/et/src/Makefile
+++ b/lib/et/src/Makefile
@@ -65,7 +65,7 @@ APPUP_TARGET = $(EBIN)/$(APPUP_FILE)
 # ----------------------------------------------------
 # FLAGS
 # ----------------------------------------------------
-ERL_COMPILE_FLAGS += -pa $(ERL_TOP)/lib/et/ebin -I../include
+ERL_COMPILE_FLAGS += -pa $(ERL_TOP)/lib/et/ebin -I../include -Werror
 
 # ----------------------------------------------------
 # Special Build Targets
diff --git a/lib/et/src/et_collector.erl b/lib/et/src/et_collector.erl
index e05c67be60..1f60dee8ca 100644
--- a/lib/et/src/et_collector.erl
+++ b/lib/et/src/et_collector.erl
@@ -64,6 +64,8 @@
 -export([init/1,terminate/2, code_change/3,
          handle_call/3, handle_cast/2, handle_info/2]).
 
+-compile([{nowarn_deprecated_function,[{erlang,now,0}]}]).
+
 -include("et_internal.hrl").
 -include("../include/et.hrl").
 
diff --git a/lib/et/src/et_selector.erl b/lib/et/src/et_selector.erl
index c8e9c907b2..5497096377 100644
--- a/lib/et/src/et_selector.erl
+++ b/lib/et/src/et_selector.erl
@@ -28,6 +28,8 @@
          parse_event/2
         ]).
 
+-compile([{nowarn_deprecated_function,[{erlang,now,0}]}]).
+
 -include("../include/et.hrl").
 
 %%----------------------------------------------------------------------
diff --git a/lib/eunit/doc/overview.edoc b/lib/eunit/doc/overview.edoc
index 872a017440..df716cdeea 100644
--- a/lib/eunit/doc/overview.edoc
+++ b/lib/eunit/doc/overview.edoc
@@ -569,6 +569,9 @@ Examples:
 ```?assertMatch({found, {fred, _}}, lookup(bloggs, Table))'''
 ```?assertMatch([X|_] when X > 0, binary_to_list(B))'''
 </dd>
+<dt>`assertNotMatch(GuardedPattern, Expr)'</dt>
+<dd>The inverse case of assertMatch, for convenience.
+</dd>
 <dt>`assertEqual(Expect, Expr)'</dt>
 <dd>Evaluates the expressions `Expect' and `Expr' and compares the
 results for equality, if testing is enabled. If the values are not
@@ -583,6 +586,9 @@ Examples:
 ```?assertEqual("b" ++ "a", lists:reverse("ab"))'''
 ```?assertEqual(foo(X), bar(Y))'''
 </dd>
+<dt>`assertNotEqual(Unexpected, Expr)'</dt>
+<dd>The inverse case of assertEqual, for convenience.
+</dd>
 <dt>`assertException(ClassPattern, TermPattern, Expr)'</dt>
 <dt>`assertError(TermPattern, Expr)'</dt>
 <dt>`assertExit(TermPattern, Expr)'</dt>
diff --git a/lib/eunit/include/eunit.hrl b/lib/eunit/include/eunit.hrl
index 9e8d34567a..53d291430d 100644
--- a/lib/eunit/include/eunit.hrl
+++ b/lib/eunit/include/eunit.hrl
@@ -414,7 +414,7 @@
 -else.
 -define(debugMsg(S),
 	begin
-	    io:fwrite(user, <<"~s:~w:~w: ~s\n">>,
+	    io:fwrite(user, <<"~ts:~w:~w: ~ts\n">>,
 		      [?FILE, ?LINE, self(), S]),
 	    ok
 	end).
@@ -423,7 +423,7 @@
 -define(debugVal(E),
 	begin
 	((fun (__V) ->
-		  ?debugFmt(<<"~s = ~P">>, [(??E), __V, 15]),
+		  ?debugFmt(<<"~ts = ~tP">>, [(??E), __V, 15]),
 		  __V
 	  end)(E))
 	end).
@@ -433,7 +433,7 @@
 		  {__T0, _} = statistics(wall_clock),
 		  __V = (E),
 		  {__T1, _} = statistics(wall_clock),
-		  ?debugFmt(<<"~s: ~.3f s">>, [(S), (__T1-__T0)/1000]),
+		  ?debugFmt(<<"~ts: ~.3f s">>, [(S), (__T1-__T0)/1000]),
 		  __V
 	  end)())
 	end).
diff --git a/lib/eunit/src/eunit.app.src b/lib/eunit/src/eunit.app.src
index 7a3978e200..b4ff6c9242 100644
--- a/lib/eunit/src/eunit.app.src
+++ b/lib/eunit/src/eunit.app.src
@@ -19,4 +19,4 @@
   {registered,[]},
   {applications, [kernel,stdlib]},
   {env, []},
-  {runtime_dependencies, ["stdlib-2.0","kernel-3.0","erts-6.0"]}]}.
+  {runtime_dependencies, ["stdlib-2.5","kernel-3.0","erts-6.0"]}]}.
diff --git a/lib/eunit/src/eunit.erl b/lib/eunit/src/eunit.erl
index 9c589dfa86..fbfd123c43 100644
--- a/lib/eunit/src/eunit.erl
+++ b/lib/eunit/src/eunit.erl
@@ -231,7 +231,7 @@ event_logger(LogFile) ->
 event_logger_loop(Reference, FD) ->
     receive
 	{status, _Id, _Info}=Msg ->
-	    io:fwrite(FD, "~p.\n", [Msg]),
+	    io:fwrite(FD, "~tp.\n", [Msg]),
 	    event_logger_loop(Reference, FD);
 	{stop, Reference, _ReplyTo} ->
 	    %% no need to reply, just exit
diff --git a/lib/eunit/src/eunit_autoexport.erl b/lib/eunit/src/eunit_autoexport.erl
index 36ae3b71d7..7bb78f5ea8 100644
--- a/lib/eunit/src/eunit_autoexport.erl
+++ b/lib/eunit/src/eunit_autoexport.erl
@@ -79,11 +79,12 @@ rewrite([{function,_,test,0,_}=F | Fs], As, Module, _Test) ->
 rewrite([F | Fs], As, Module, Test) ->
     rewrite(Fs, [F | As], Module, Test);
 rewrite([], As, Module, Test) ->
+    L = erl_anno:new(0),
     {if Test ->
-	     [{function,0,test,0,
-	       [{clause,0,[],[],
-		 [{call,0,{remote,0,{atom,0,eunit},{atom,0,test}},
-		   [{atom,0,Module}]}]}]}
+	     [{function,L,test,0,
+	       [{clause,L,[],[],
+		 [{call,L,{remote,L,{atom,L,eunit},{atom,L,test}},
+		   [{atom,L,Module}]}]}]}
 	      | As];
 	true ->
 	     As
@@ -96,4 +97,4 @@ module_decl(Name, M, Fs, Exports) ->
     Es = if Test -> [{test,0} | Exports];
 	    true -> Exports
 	 end,
-    [M, {attribute,0,export,Es} | lists:reverse(Fs1)].
+    [M, {attribute,erl_anno:new(0),export,Es} | lists:reverse(Fs1)].
diff --git a/lib/eunit/src/eunit_data.erl b/lib/eunit/src/eunit_data.erl
index cbbc6fbc15..8b53a3681d 100644
--- a/lib/eunit/src/eunit_data.erl
+++ b/lib/eunit/src/eunit_data.erl
@@ -391,7 +391,7 @@ parse({with, X, As}=T) when is_list(As) ->
 parse({S, T1} = T) when is_list(S) ->
     case eunit_lib:is_string(S) of
 	true ->
-	    group(#group{tests = T1, desc = list_to_binary(S)});
+	    group(#group{tests = T1, desc = unicode:characters_to_binary(S)});
 	false ->
 	    bad_test(T)
     end;
diff --git a/lib/eunit/src/eunit_internal.hrl b/lib/eunit/src/eunit_internal.hrl
index 92694ec39b..8e1e27811f 100644
--- a/lib/eunit/src/eunit_internal.hrl
+++ b/lib/eunit/src/eunit_internal.hrl
@@ -14,8 +14,8 @@
 -define(DEFAULT_MODULE_WRAPPER_NAME, eunit_wrapper_).
 
 -ifdef(DEBUG).
--define(debugmsg(S),io:fwrite("\n* ~s: ~s\n", [?MODULE,S])).
--define(debugmsg1(S,As),io:fwrite("\n* ~s: " ++ S ++ "\n", [?MODULE] ++ As)).
+-define(debugmsg(S),io:fwrite("\n* ~ts: ~ts\n", [?MODULE,S])).
+-define(debugmsg1(S,As),io:fwrite("\n* ~ts: " ++ S ++ "\n", [?MODULE] ++ As)).
 -else.
 -define(debugmsg(S),ok).
 -define(debugmsg1(S,As),ok).
diff --git a/lib/eunit/src/eunit_lib.erl b/lib/eunit/src/eunit_lib.erl
index 40bae93298..d8f98cffa5 100644
--- a/lib/eunit/src/eunit_lib.erl
+++ b/lib/eunit/src/eunit_lib.erl
@@ -57,7 +57,7 @@ format_exception({Class,Term,Trace}, Depth)
   when is_atom(Class), is_list(Trace) ->
     case is_stacktrace(Trace) of
 	true ->
-	    io_lib:format("~s**~w:~s",
+	    io_lib:format("~ts**~w:~ts",
 			  [format_stacktrace(Trace), Class,
                            format_term(Term, Depth)]);
 	false ->
@@ -67,11 +67,11 @@ format_exception(Term, Depth) ->
     format_term(Term, Depth).
 
 format_term(Term, Depth) ->
-    io_lib:format("~P\n", [Term, Depth]).
+    io_lib:format("~tP\n", [Term, Depth]).
 
 format_exit_term(Term) ->
     {Reason, Trace} = analyze_exit_term(Term),
-    io_lib:format("~P~s", [Reason, 15, Trace]).
+    io_lib:format("~tP~ts", [Reason, 15, Trace]).
 
 analyze_exit_term({Reason, [_|_]=Trace}=Term) ->
     case is_stacktrace(Trace) of
@@ -102,7 +102,7 @@ format_stacktrace(Trace) ->
     format_stacktrace(Trace, "in function", "in call from").
 
 format_stacktrace([{M,F,A,L}|Fs], Pre, Pre1) when is_integer(A) ->
-    [io_lib:fwrite("~s ~w:~w/~w~s\n",
+    [io_lib:fwrite("~ts ~w:~w/~w~ts\n",
                    [Pre, M, F, A, format_stacktrace_location(L)])
      | format_stacktrace(Fs, Pre1, Pre1)];
 format_stacktrace([{M,F,As,L}|Fs], Pre, Pre1) when is_list(As) ->
@@ -110,15 +110,15 @@ format_stacktrace([{M,F,As,L}|Fs], Pre, Pre1) when is_list(As) ->
     C = case is_op(M,F,A) of
 	    true when A =:= 1 ->
 		[A1] = As,
-		io_lib:fwrite("~s ~s", [F,format_arg(A1)]);
+		io_lib:fwrite("~ts ~ts", [F,format_arg(A1)]);
 	    true when A =:= 2 ->
 		[A1, A2] = As,
-		io_lib:fwrite("~s ~s ~s",
+		io_lib:fwrite("~ts ~ts ~ts",
 			      [format_arg(A1),F,format_arg(A2)]);
 	    false ->
-		io_lib:fwrite("~w(~s)", [F,format_arglist(As)])
+		io_lib:fwrite("~w(~ts)", [F,format_arglist(As)])
 	end,
-    [io_lib:fwrite("~s ~w:~w/~w~s\n  called as ~s\n",
+    [io_lib:fwrite("~ts ~w:~w/~w~ts\n  called as ~ts\n",
 		   [Pre,M,F,A,format_stacktrace_location(L),C])
      | format_stacktrace(Fs,Pre1,Pre1)];
 format_stacktrace([{M,F,As}|Fs], Pre, Pre1) ->
@@ -130,18 +130,18 @@ format_stacktrace_location(Location) ->
     File = proplists:get_value(file, Location),
     Line = proplists:get_value(line, Location),
     if File =/= undefined, Line =/= undefined ->
-            io_lib:format(" (~s, line ~w)", [File, Line]);
+            io_lib:format(" (~ts, line ~w)", [File, Line]);
        true ->
             ""
     end.
 
 format_arg(A) ->
-    io_lib:format("~P",[A,15]).
+    io_lib:format("~tP",[A,15]).
 
 format_arglist([A]) ->
     format_arg(A);
 format_arglist([A|As]) ->
-    [io_lib:format("~P,",[A,15]) | format_arglist(As)];
+    [io_lib:format("~tP,",[A,15]) | format_arglist(As)];
 format_arglist([]) ->
     "".
 
@@ -155,41 +155,41 @@ is_op(_M, _F, _A) ->
     false.
 
 format_error({bad_test, Term}) ->
-    error_msg("bad test descriptor", "~P", [Term, 15]);
+    error_msg("bad test descriptor", "~tP", [Term, 15]);
 format_error({bad_generator, {{M,F,A}, Term}}) ->
     error_msg(io_lib:format("result from generator ~w:~w/~w is not a test",
                             [M,F,A]),
-              "~P", [Term, 15]);
+              "~tP", [Term, 15]);
 format_error({generator_failed, {{M,F,A}, Exception}}) ->
     error_msg(io_lib:format("test generator ~w:~w/~w failed",[M,F,A]),
-              "~s", [format_exception(Exception)]);
+              "~ts", [format_exception(Exception)]);
 format_error({no_such_function, {M,F,A}})
   when is_atom(M), is_atom(F), is_integer(A) ->
     error_msg(io_lib:format("no such function: ~w:~w/~w", [M,F,A]),
 	      "", []);
 format_error({module_not_found, M}) ->
-    error_msg("test module not found", "~p", [M]);
+    error_msg("test module not found", "~tp", [M]);
 format_error({application_not_found, A}) when is_atom(A) ->
     error_msg("application not found", "~w", [A]);
 format_error({file_read_error, {_R, Msg, F}}) ->
-    error_msg("error reading file", "~s: ~s", [Msg, F]);
+    error_msg("error reading file", "~ts: ~ts", [Msg, F]);
 format_error({setup_failed, Exception}) ->
-    error_msg("context setup failed", "~s",
+    error_msg("context setup failed", "~ts",
 	      [format_exception(Exception)]);
 format_error({cleanup_failed, Exception}) ->
-    error_msg("context cleanup failed", "~s",
+    error_msg("context cleanup failed", "~ts",
 	      [format_exception(Exception)]);
 format_error({{bad_instantiator, {{M,F,A}, Term}}, _DummyException}) ->
     error_msg(io_lib:format("result from instantiator ~w:~w/~w is not a test",
                             [M,F,A]),
-              "~P", [Term, 15]);
+              "~tP", [Term, 15]);
 format_error({instantiation_failed, Exception}) ->
-    error_msg("instantiation of subtests failed", "~s",
+    error_msg("instantiation of subtests failed", "~ts",
 	      [format_exception(Exception)]).
 
 error_msg(Title, Fmt, Args) ->
     Msg = io_lib:format("**"++Fmt, Args),    % gets indentation right
-    io_lib:fwrite("*** ~s ***\n~s\n\n", [Title, Msg]).
+    io_lib:fwrite("*** ~ts ***\n~ts\n\n", [Title, Msg]).
 
 -ifdef(TEST).
 format_exception_test_() ->
diff --git a/lib/eunit/src/eunit_proc.erl b/lib/eunit/src/eunit_proc.erl
index 03d1a18321..98ae31d54b 100644
--- a/lib/eunit/src/eunit_proc.erl
+++ b/lib/eunit/src/eunit_proc.erl
@@ -230,7 +230,7 @@ insulator_wait(Child, Parent, Buf, St) ->
 	    message_super(Id, {progress, 'begin', {Type, Data}}, St),
 	    insulator_wait(Child, Parent, [[] | Buf], St);
 	{child, Child, Id, {'end', Status, Time}} ->
-	    Data = [{time, Time}, {output, buffer_to_binary(hd(Buf))}],
+	    Data = [{time, Time}, {output, lists:reverse(hd(Buf))}],
 	    message_super(Id, {progress, 'end', {Status, Data}}, St),
 	    insulator_wait(Child, Parent, tl(Buf), St);
 	{child, Child, Id, {skipped, Reason}} ->
@@ -272,9 +272,6 @@ kill_task(Child, St) ->
     exit(Child, kill),
     terminate_insulator(St).
 
-buffer_to_binary([B]) when is_binary(B) -> B;  % avoid unnecessary copying
-buffer_to_binary(Buf) -> list_to_binary(lists:reverse(Buf)).
-
 %% Unlinking before exit avoids polluting the parent process with exit
 %% signals from the insulator. The child process is already dead here.
 
@@ -597,7 +594,7 @@ group_leader_loop(Runner, Wait, Buf) ->
 	    %% no more messages and nothing to wait for; we ought to
 	    %% have collected all immediately pending output now
 	    process_flag(priority, normal),
-	    Runner ! {self(), buffer_to_binary(Buf)}
+	    Runner ! {self(), lists:reverse(Buf)}
     end.
 
 group_leader_sync(G) ->
diff --git a/lib/eunit/src/eunit_server.erl b/lib/eunit/src/eunit_server.erl
index 2002930abb..387976eba1 100644
--- a/lib/eunit/src/eunit_server.erl
+++ b/lib/eunit/src/eunit_server.erl
@@ -200,7 +200,7 @@ server_command(From, stop, St) ->
     server(St#state{stopped = true});
 server_command(From, {watch, Target, _Opts}, St) ->
     %% the code watcher is only started on demand
-    %% FIXME: this is disabled for now in the OTP distribution
+    %% TODO: this is disabled for now
     %%code_monitor:monitor(self()),
     %% TODO: propagate options to testing stage
     St1 = add_watch(Target, St),
diff --git a/lib/eunit/src/eunit_surefire.erl b/lib/eunit/src/eunit_surefire.erl
index 2d1f0b1497..f3e58a3d1c 100644
--- a/lib/eunit/src/eunit_surefire.erl
+++ b/lib/eunit/src/eunit_surefire.erl
@@ -203,9 +203,9 @@ handle_cancel(test, Data, St) ->
 		     testcases=[TestCase|TestSuite#testsuite.testcases] },
     St#state{testsuites=store_suite(NewTestSuite, TestSuites)}.
 
-format_name({Module, Function, Arity}, Line) ->
-    lists:flatten([atom_to_list(Module), ":", atom_to_list(Function), "/",
-		   integer_to_list(Arity), "_", integer_to_list(Line)]).
+format_name({Module, Function, _Arity}, Line) ->
+    lists:flatten([atom_to_list(Module), ":", integer_to_list(Line), " ",
+                   atom_to_list(Function)]).
 format_desc(undefined) ->
     "";
 format_desc(Desc) when is_binary(Desc) ->
@@ -279,7 +279,7 @@ write_report_to(TestSuite, FileDescriptor) ->
 %% Write the XML header.
 %% ----------------------------------------------------------------------------
 write_header(FileDescriptor) ->
-    file:write(FileDescriptor, [<<"<?xml version=\"1.0\" encoding=\"UTF-8\" ?>">>, ?NEWLINE]).
+    io:format(FileDescriptor, "~ts~ts", [<<"<?xml version=\"1.0\" encoding=\"UTF-8\" ?>">>, ?NEWLINE]).
 
 %% ----------------------------------------------------------------------------
 %% Write the testsuite start tag, with attributes describing the statistics
@@ -303,7 +303,7 @@ write_start_tag(
         <<"\" time=\"">>, format_time(Time),
         <<"\" name=\"">>, escape_attr(Name),
         <<"\">">>, ?NEWLINE],
-    file:write(FileDescriptor, StartTag).
+    io:format(FileDescriptor, "~ts", [StartTag]).
 
 %% ----------------------------------------------------------------------------
 %% Recursive function to write the test cases.
@@ -317,7 +317,7 @@ write_testcases([TestCase| Tail], FileDescriptor) ->
 %% Write the testsuite end tag.
 %% ----------------------------------------------------------------------------
 write_end_tag(FileDescriptor) ->
-    file:write(FileDescriptor, [<<"</testsuite>">>, ?NEWLINE]).
+    io:format(FileDescriptor, "~ts~ts", [<<"</testsuite>">>, ?NEWLINE]).
 
 %% ----------------------------------------------------------------------------
 %% Write a test case, as a testcase tag.
@@ -334,17 +334,16 @@ write_testcase(
         FileDescriptor) ->
     DescriptionAttr = case Description of
 			  [] -> [];
-			  _ -> [<<" description=\"">>, escape_attr(Description), <<"\"">>]
+			  _ -> [<<" (">>, escape_attr(Description), <<")">>]
 		      end,
     StartTag = [
         ?INDENT, <<"<testcase time=\"">>, format_time(Time),
-        <<"\" name=\"">>, escape_attr(Name), <<"\"">>,
-        DescriptionAttr],
+        <<"\" name=\"">>, escape_attr(Name), DescriptionAttr, <<"\"">>],
     ContentAndEndTag = case {Result, Output} of
         {ok, <<>>} -> [<<"/>">>, ?NEWLINE];
         _ -> [<<">">>, ?NEWLINE, format_testcase_result(Result), format_testcase_output(Output), ?INDENT, <<"</testcase>">>, ?NEWLINE]
     end,
-    file:write(FileDescriptor, [StartTag, ContentAndEndTag]).
+    io:format(FileDescriptor, "~ts~ts", [StartTag, ContentAndEndTag]).
 
 %% ----------------------------------------------------------------------------
 %% Format the result of the test.
@@ -427,7 +426,7 @@ escape_suitename([Char | Tail], Acc) -> escape_suitename(Tail, [Char | Acc]).
 %% Replace < with &lt;, > with &gt; and & with &amp;
 %% ----------------------------------------------------------------------------
 escape_text(Text) when is_binary(Text) -> escape_text(binary_to_list(Text));
-escape_text(Text) -> escape_xml(lists:flatten(Text), [], false).
+escape_text(Text) -> escape_xml(to_utf8(lists:flatten(Text)), [], false).
 
 
 %% ----------------------------------------------------------------------------
@@ -435,7 +434,7 @@ escape_text(Text) -> escape_xml(lists:flatten(Text), [], false).
 %% Replace < with &lt;, > with &gt; and & with &amp;
 %% ----------------------------------------------------------------------------
 escape_attr(Text) when is_binary(Text) -> escape_attr(binary_to_list(Text));
-escape_attr(Text) -> escape_xml(lists:flatten(Text), [], true).
+escape_attr(Text) -> escape_xml(to_utf8(lists:flatten(Text)), [], true).
 
 escape_xml([], Acc, _ForAttr) -> lists:reverse(Acc);
 escape_xml([$< | Tail], Acc, ForAttr) -> escape_xml(Tail, [$;, $t, $l, $& | Acc], ForAttr);
@@ -443,3 +442,17 @@ escape_xml([$> | Tail], Acc, ForAttr) -> escape_xml(Tail, [$;, $t, $g, $& | Acc]
 escape_xml([$& | Tail], Acc, ForAttr) -> escape_xml(Tail, [$;, $p, $m, $a, $& | Acc], ForAttr);
 escape_xml([$" | Tail], Acc, true) -> escape_xml(Tail, [$;, $t, $o, $u, $q, $& | Acc], true); % "
 escape_xml([Char | Tail], Acc, ForAttr) when is_integer(Char) -> escape_xml(Tail, [Char | Acc], ForAttr).
+
+%% the input may be utf8 or latin1; the resulting list is unicode
+to_utf8(Desc) when is_binary(Desc) ->
+	case unicode:characters_to_list(Desc) of
+		{_,_,_} -> unicode:characters_to_list(Desc, latin1);
+		X -> X
+	end;
+to_utf8(Desc) when is_list(Desc) ->
+	try
+		to_utf8(list_to_binary(Desc))
+	catch
+		_:_ ->
+			Desc
+	end.
diff --git a/lib/eunit/src/eunit_tty.erl b/lib/eunit/src/eunit_tty.erl
index f21b2da3d3..699d2adaca 100644
--- a/lib/eunit/src/eunit_tty.erl
+++ b/lib/eunit/src/eunit_tty.erl
@@ -83,7 +83,7 @@ terminate({ok, Data}, St) ->
 	    sync_end(error)
     end;
 terminate({error, Reason}, _St) ->
-    fwrite("Internal error: ~P.\n", [Reason, 25]),
+    fwrite("Internal error: ~tP.\n", [Reason, 25]),
     sync_end(error).
 
 sync_end(Result) ->
@@ -177,7 +177,7 @@ indent(_N) ->
 
 print_group_start(I, Desc) ->
     indent(I),
-    fwrite("~s\n", [Desc]).
+    fwrite("~ts\n", [Desc]).
 
 print_group_end(I, Time) ->
     if Time > 0 ->
@@ -195,13 +195,13 @@ print_test_begin(I, Data) ->
 	   true -> io_lib:fwrite("~w:", [Line])
 	end,
     D = if Desc =:= "" ; Desc =:= undefined -> "";
-	   true -> io_lib:fwrite(" (~s)", [Desc])
+	   true -> io_lib:fwrite(" (~ts)", [Desc])
 	end,
     case proplists:get_value(source, Data) of
 	{Module, Name, _Arity} ->
-	    fwrite("~s:~s ~s~s...", [Module, L, Name, D]);
+	    fwrite("~ts:~ts ~ts~ts...", [Module, L, Name, D]);
 	_ ->
-	    fwrite("~s~s...", [L, D])
+	    fwrite("~ts~ts...", [L, D])
     end.
 
 print_test_end(Data) ->
@@ -209,21 +209,21 @@ print_test_end(Data) ->
     T = if Time > 0 -> io_lib:fwrite("[~.3f s] ", [Time/1000]);
 	   true -> ""
 	end,
-    fwrite("~sok\n", [T]).
+    fwrite("~tsok\n", [T]).
 
 print_test_error({error, Exception}, Data) ->
     Output = proplists:get_value(output, Data),
-    fwrite("*failed*\n~s", [eunit_lib:format_exception(Exception)]),
+    fwrite("*failed*\n~ts", [eunit_lib:format_exception(Exception)]),
     case Output of
 	<<>> ->
 	    fwrite("\n\n");
 	<<Text:800/binary, _:1/binary, _/binary>> ->
-	    fwrite("  output:<<\"~s\">>...\n\n", [Text]);
+	    fwrite("  output:<<\"~ts\">>...\n\n", [Text]);
 	_ ->
-	    fwrite("  output:<<\"~s\">>\n\n", [Output])
+	    fwrite("  output:<<\"~ts\">>\n\n", [Output])
     end;
 print_test_error({skipped, Reason}, _) ->
-    fwrite("*did not run*\n::~s\n", [format_skipped(Reason)]).
+    fwrite("*did not run*\n::~ts\n", [format_skipped(Reason)]).
 
 format_skipped({module_not_found, M}) ->
     io_lib:fwrite("missing module: ~w", [M]);
@@ -244,12 +244,12 @@ format_cancel(undefined) ->
 format_cancel(timeout) ->
     "*timed out*\n";
 format_cancel({startup, Reason}) ->
-    io_lib:fwrite("*could not start test process*\n::~P\n\n",
+    io_lib:fwrite("*could not start test process*\n::~tP\n\n",
 		  [Reason, 15]);
 format_cancel({blame, _SubId}) ->
     "*cancelled because of subtask*\n";
 format_cancel({exit, Reason}) ->
-    io_lib:fwrite("*unexpected termination of test process*\n::~P\n\n",
+    io_lib:fwrite("*unexpected termination of test process*\n::~tP\n\n",
 		  [Reason, 15]);
 format_cancel({abort, Reason}) ->
     eunit_lib:format_error(Reason).
diff --git a/lib/eunit/test/Makefile b/lib/eunit/test/Makefile
index e4ddf4e42c..b0dde64c67 100644
--- a/lib/eunit/test/Makefile
+++ b/lib/eunit/test/Makefile
@@ -20,7 +20,9 @@ include $(ERL_TOP)/make/target.mk
 include $(ERL_TOP)/make/$(TARGET)/otp.mk
 
 MODULES =  \
-	eunit_SUITE
+	eunit_SUITE \
+	tlatin \
+	tutf8
 
 ERL_FILES= $(MODULES:%=%.erl)
 
diff --git a/lib/eunit/test/eunit_SUITE.erl b/lib/eunit/test/eunit_SUITE.erl
index d13dc73923..2ac6fafe5d 100644
--- a/lib/eunit/test/eunit_SUITE.erl
+++ b/lib/eunit/test/eunit_SUITE.erl
@@ -1,35 +1,35 @@
 %%
 %% %CopyrightBegin%
-%% 
+%%
 %% Copyright Ericsson AB 2010-2011. All Rights Reserved.
-%% 
+%%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
 %% compliance with the License. You should have received a copy of the
 %% Erlang Public License along with this software. If not, it can be
 %% retrieved online at http://www.erlang.org/.
-%% 
+%%
 %% Software distributed under the License is distributed on an "AS IS"
 %% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 %% the License for the specific language governing rights and limitations
 %% under the License.
-%% 
+%%
 %% %CopyrightEnd%
 %%
 -module(eunit_SUITE).
 
--export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, 
+-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
 	 init_per_group/2,end_per_group/2,
-	 app_test/1,appup_test/1,eunit_test/1]).
-	 
+	 app_test/1,appup_test/1,eunit_test/1,surefire_utf8_test/1,surefire_latin_test/1]).
+
 -include_lib("common_test/include/ct.hrl").
 
 suite() -> [{ct_hooks,[ts_install_cth]}].
 
-all() -> 
-    [app_test, appup_test, eunit_test].
+all() ->
+    [app_test, appup_test, eunit_test, surefire_utf8_test, surefire_latin_test].
 
-groups() -> 
+groups() ->
     [].
 
 init_per_suite(Config) ->
@@ -54,3 +54,21 @@ eunit_test(Config) when is_list(Config) ->
     ok = file:set_cwd(code:lib_dir(eunit)),
     ok = eunit:test(eunit).
 
+surefire_latin_test(Config) when is_list(Config) ->
+    ok = file:set_cwd(proplists:get_value(priv_dir, Config, ".")),
+	check_surefire(tlatin),
+	ok.
+
+surefire_utf8_test(Config) when is_list(Config) ->
+    ok = file:set_cwd(proplists:get_value(priv_dir, Config, ".")),
+	check_surefire(tutf8),
+	ok.
+
+check_surefire(Module) ->
+	File = "TEST-"++atom_to_list(Module)++".xml",
+	file:delete(File),
+	% ignore test result, some fail on purpose
+	eunit:test(Module, [{report,{eunit_surefire,[{dir,"."}]}}]),
+	{ok, Bin} = file:read_file(File),
+	[_|_] = unicode:characters_to_list(Bin, unicode),
+	ok.
\ No newline at end of file
diff --git a/lib/eunit/test/tlatin.erl b/lib/eunit/test/tlatin.erl
new file mode 100644
index 0000000000..a42e67d581
--- /dev/null
+++ b/lib/eunit/test/tlatin.erl
@@ -0,0 +1,15 @@
+% coding: latin-1
+
+-module(tlatin).
+
+-include_lib("eunit/include/eunit.hrl").
+
+'foo_�_test_'() ->
+	[
+	 {"1�1", fun() -> io:format("1�1 ~s ~w",[<<"a�">>, 'Z�k']), io:format([128,64,255,255]), ?assert("g�"=="g�") end}
+	 ,{<<"2�2">>, fun() -> io:format("2�2 ~s",[<<"b�">>]), io:format([128,64]), ?assert("g�"=="g�") end}
+	 ,{<<"3�3"/utf8>>, fun() -> io:format("3�3 ~ts",[<<"c�"/utf8>>]), io:format([128,64]), ?assert("g�"=="g�") end}
+	 ,{"1�1", fun() -> io:format("1�1 ~s ~w",[<<"a�">>,'Zb�d']), io:format([128,64,255,255]), ?assert("w�"=="w�") end}
+	 ,{<<"2�2">>, fun() -> io:format("2�2 ~s",[<<"b�">>]), io:format([128,64]), ?assert("w�"=="w�") end}
+	 ,{<<"3�3"/utf8>>, fun() -> io:format("3�3 ~ts",[<<"c�"/utf8>>]), io:format([128,64]), ?assert("w�"=="w�") end}
+	].
diff --git a/lib/eunit/test/tutf8.erl b/lib/eunit/test/tutf8.erl
new file mode 100644
index 0000000000..c902f3ad18
--- /dev/null
+++ b/lib/eunit/test/tutf8.erl
@@ -0,0 +1,15 @@
+%% coding: utf-8
+
+-module(tutf8).
+
+-include_lib("eunit/include/eunit.hrl").
+
+'foo_ö_test_'() ->
+	[
+	 {"1ö汉1", fun() -> io:format("1å汉1 ~s ~w",[<<"aö汉">>, 'Zök']), io:format([128,64,255,255]), ?assert("gö汉"=="gö汉") end}
+	 ,{<<"2ö汉2">>, fun() -> io:format("2å汉2 ~s",[<<"bö汉">>]), io:format([128,64]), ?assert("gö汉"=="gö汉") end}
+	 ,{<<"3ö汉3"/utf8>>, fun() -> io:format("3å汉3 ~ts",[<<"cö汉"/utf8>>]), io:format([128,64]), ?assert("gö汉"=="gö汉") end}
+	 ,{"1ä汉1", fun() -> io:format("1ä汉1 ~s ~w",[<<"aä汉">>, 'Zbäd']), io:format([128,64,255,255]), ?assert("wå汉"=="wä汉") end}
+	 ,{<<"2ä汉2">>, fun() -> io:format("2ä汉2 ~s",[<<"bä汉">>]), io:format([128,64]), ?assert("wå汉"=="wä汉") end}
+	 ,{<<"3ä汉"/utf8>>, fun() -> io:format("3ä汉3 ~ts",[<<"cä汉"/utf8>>]), io:format([128,64]), ?assert("wå汉"=="wä汉") end}
+	].
diff --git a/lib/eunit/vsn.mk b/lib/eunit/vsn.mk
index dca8b3ece0..b551ee6eb6 100644
--- a/lib/eunit/vsn.mk
+++ b/lib/eunit/vsn.mk
@@ -1 +1 @@
-EUNIT_VSN = 2.2.9
+EUNIT_VSN = 2.3
diff --git a/lib/hipe/cerl/cerl_pmatch.erl b/lib/hipe/cerl/cerl_pmatch.erl
index 3bc93e80dd..4f04b0a7ed 100644
--- a/lib/hipe/cerl/cerl_pmatch.erl
+++ b/lib/hipe/cerl/cerl_pmatch.erl
@@ -31,7 +31,7 @@
 
 -module(cerl_pmatch).
 
--define(NO_UNUSED, true).
+%%-define(NO_UNUSED, true).
 
 -export([clauses/2]).
 -ifndef(NO_UNUSED).
@@ -59,6 +59,8 @@
 %% @see transform/2
 
 -ifndef(NO_UNUSED).
+-spec core_transform(cerl:c_module(), [_]) -> cerl:c_module().
+
 core_transform(M, Opts) ->
     cerl:to_records(transform(cerl:from_records(M), Opts)).
 -endif.	% NO_UNUSED
@@ -76,6 +78,8 @@ core_transform(M, Opts) ->
 %% @see core_transform/2
 
 -ifndef(NO_UNUSED).
+-spec transform(cerl:cerl(), [_]) -> cerl:cerl().
+
 transform(M, _Opts) ->
   expr(M, env__empty()).
 -endif.	% NO_UNUSED
@@ -109,7 +113,7 @@ transform(M, _Opts) ->
 %% @see expr/2
 %% @see transform/2
 
--spec clauses([cerl:cerl()], rec_env:environment()) -> 
+-spec clauses([cerl:cerl(),...], rec_env:environment()) ->
           {cerl:cerl(), [cerl:cerl()]}.
 
 clauses(Cs, Env) ->
@@ -406,6 +410,8 @@ make_let(Vs, A, B) ->
 %% @see rec_env
 
 -ifndef(NO_UNUSED).
+-spec expr(cerl:cerl(), rec_env:environment()) -> cerl:cerl().
+
 expr(E, Env) ->
     case cerl:type(E) of
  	literal ->
diff --git a/lib/hipe/cerl/cerl_to_icode.erl b/lib/hipe/cerl/cerl_to_icode.erl
index 2645056be1..f98aaa12f3 100644
--- a/lib/hipe/cerl/cerl_to_icode.erl
+++ b/lib/hipe/cerl/cerl_to_icode.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2003-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2003-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -110,7 +110,7 @@
 	       effect = false :: boolean(),
 	       fail   = [],		% [] or fail-to label
 	       class  = expr  :: 'expr' | 'guard',
-	       line   = 0     :: erl_scan:line(),	% current line number
+	       line   = 0     :: erl_anno:line(),	% current line number
 	       'receive'      :: 'undefined' | #'receive'{}
 	      }).
 
diff --git a/lib/hipe/cerl/erl_bif_types.erl b/lib/hipe/cerl/erl_bif_types.erl
index 74e93bf098..ee77d65932 100644
--- a/lib/hipe/cerl/erl_bif_types.erl
+++ b/lib/hipe/cerl/erl_bif_types.erl
@@ -1070,9 +1070,6 @@ type(hipe_bifs, find_na_or_make_stub, 2, Xs, Opaques) ->
 type(hipe_bifs, fun_to_address, 1, Xs, Opaques) ->
   strict(hipe_bifs, fun_to_address, 1, Xs,
 	 fun (_) -> t_integer() end, Opaques);
-%% type(hipe_bifs, get_emu_address, 1, Xs, Opaques) ->
-%%    strict(hipe_bifs, get_emu_address, 1, Xs,
-%%	   fun (_) -> t_integer() end, Opaques); % address
 type(hipe_bifs, get_fe, 2, Xs, Opaques) ->
   strict(hipe_bifs, get_fe, 2, Xs, fun (_) -> t_integer() end, Opaques);
 type(hipe_bifs, get_rts_param, 1, Xs, Opaques) ->
@@ -1081,9 +1078,6 @@ type(hipe_bifs, get_rts_param, 1, Xs, Opaques) ->
 type(hipe_bifs, invalidate_funinfo_native_addresses, 1, Xs, Opaques) ->
   strict(hipe_bifs, invalidate_funinfo_native_addresses, 1, Xs,
 	 fun (_) -> t_nil() end, Opaques);
-%% type(hipe_bifs, make_native_stub, 2, Xs, Opaques) ->
-%%    strict(hipe_bifs, make_native_stub, 2, Xs,
-%%	   fun (_) -> t_integer() end, Opaques); % address
 type(hipe_bifs, mark_referred_from, 1, Xs, Opaques) ->
   strict(hipe_bifs, mark_referred_from, 1, Xs,
 	 fun (_) -> t_nil() end, Opaques);
@@ -1119,8 +1113,8 @@ type(hipe_bifs, set_native_address, 3, Xs, Opaques) ->
 type(hipe_bifs, set_native_address_in_fe, 2, Xs, Opaques) ->
   strict(hipe_bifs, set_native_address_in_fe, 2, Xs,
 	 fun (_) -> t_atom('true') end, Opaques);
-type(hipe_bifs, system_crc, 1, Xs, Opaques) ->
-  strict(hipe_bifs, system_crc, 1, Xs, fun (_) -> t_crc32() end, Opaques);
+type(hipe_bifs, system_crc, 0, _, _Opaques) ->
+  t_crc32();
 type(hipe_bifs, term_to_word, 1, Xs, Opaques) ->
   strict(hipe_bifs, term_to_word, 1, Xs,
 	 fun (_) -> t_integer() end, Opaques);
@@ -2462,16 +2456,12 @@ arg_types(hipe_bifs, find_na_or_make_stub, 2) ->
   [t_mfa(), t_boolean()];
 arg_types(hipe_bifs, fun_to_address, 1) ->
   [t_mfa()];
-%% arg_types(hipe_bifs, get_emu_address, 1) ->
-%%   [t_mfa()];
 arg_types(hipe_bifs, get_fe, 2) ->
   [t_atom(), t_tuple([t_integer(), t_integer(), t_integer()])];
 arg_types(hipe_bifs, get_rts_param, 1) ->
   [t_fixnum()];
 arg_types(hipe_bifs, invalidate_funinfo_native_addresses, 1) ->
   [t_list(t_mfa())];
-%% arg_types(hipe_bifs, make_native_stub, 2) ->
-%%   [t_integer(), t_arity()];
 arg_types(hipe_bifs, mark_referred_from, 1) ->
   [t_mfa()];
 arg_types(hipe_bifs, merge_term, 1) ->
@@ -2500,8 +2490,8 @@ arg_types(hipe_bifs, set_native_address, 3) ->
   [t_mfa(), t_integer(), t_boolean()];
 arg_types(hipe_bifs, set_native_address_in_fe, 2) ->
   [t_integer(), t_integer()];
-arg_types(hipe_bifs, system_crc, 1) ->
-  [t_crc32()];
+arg_types(hipe_bifs, system_crc, 0) ->
+  [];
 arg_types(hipe_bifs, term_to_word, 1) ->
   [t_any()];
 arg_types(hipe_bifs, update_code_size, 3) ->
diff --git a/lib/hipe/cerl/erl_types.erl b/lib/hipe/cerl/erl_types.erl
index 4215448c61..14335cf635 100644
--- a/lib/hipe/cerl/erl_types.erl
+++ b/lib/hipe/cerl/erl_types.erl
@@ -40,7 +40,6 @@
 	 any_none_or_unit/1,
 	 lookup_record/3,
 	 max/2,
-	 module_builtin_opaques/1,
 	 min/2,
 	 number_max/1, number_max/2,
 	 number_min/1, number_min/2,
@@ -68,7 +67,6 @@
 	 t_cons/2,
 	 t_cons_hd/1, t_cons_hd/2,
 	 t_cons_tl/1, t_cons_tl/2,
-	 t_constant/0,
          t_contains_opaque/1, t_contains_opaque/2,
          t_decorate_with_opaque/3,
 	 t_elements/1,
@@ -79,10 +77,11 @@
 	 t_non_neg_fixnum/0,
 	 t_pos_fixnum/0,
 	 t_float/0,
+         t_var_names/1,
 	 t_form_to_string/1,
-	 t_from_form/1,
-	 t_from_form/2,
-	 t_from_form/3,
+         t_from_form/4,
+         t_from_form/5,
+         t_from_form_without_remote/2,
 	 t_from_range/2,
 	 t_from_range_unsafe/2,
 	 t_from_term/1,
@@ -118,7 +117,6 @@
 	 %% t_is_byte/1,
 	 %% t_is_char/1,
 	 t_is_cons/1, t_is_cons/2,
-	 t_is_constant/1,
 	 t_is_equal/2,
 	 t_is_fixnum/1,
 	 t_is_float/1, t_is_float/2,
@@ -182,13 +180,11 @@
 	 t_remote/3,
 	 t_string/0,
 	 t_struct_from_opaque/2,
-	 t_solve_remote/3,
 	 t_subst/2,
 	 t_subtract/2,
 	 t_subtract_list/2,
 	 t_sup/1,
 	 t_sup/2,
-	 t_tid/0,
 	 t_timeout/0,
 	 t_to_string/1,
 	 t_to_string/2,
@@ -250,6 +246,8 @@
 %%
 
 -define(REC_TYPE_LIMIT, 2).
+-define(EXPAND_DEPTH, 16).
+-define(EXPAND_LIMIT, 10000).
 
 -define(TUPLE_TAG_LIMIT, 5).
 -define(TUPLE_ARITY_LIMIT, 8).
@@ -368,7 +366,7 @@
 
 -type record_key()   :: {'record', atom()}.
 -type type_key()     :: {'type' | 'opaque', atom(), arity()}.
--type record_value() :: orddict:orddict(). % XXX. To be refined
+-type record_value() :: [{atom(), erl_parse:abstract_expr(), erl_type()}].
 -type type_value()   :: {module(), erl_type(), atom()}.
 -type type_table() :: dict:dict(record_key(), record_value())
                     | dict:dict(type_key(), type_value()).
@@ -466,16 +464,6 @@ has_opaque_subtype(T) ->
 t_opaque_structure(?opaque(Elements)) ->
   t_sup([Struct || #opaque{struct = Struct} <- ordsets:to_list(Elements)]).
 
--spec t_opaque_modules(erl_type()) -> [module()].
-
-t_opaque_modules(?opaque(Elements)) ->
-  case ordsets:size(Elements) of
-    1 ->
-      [#opaque{mod = Mod}] = set_to_list(Elements),
-      [Mod];
-    _ -> throw({error, "Unexpected multiple opaque types"})
-  end.
-
 -spec t_contains_opaque(erl_type()) -> boolean().
 
 t_contains_opaque(Type) ->
@@ -759,7 +747,7 @@ t_opaque_from_records(RecDict) ->
 		    end
 		end, RecDict),
   OpaqueTypeDict =
-    dict:map(fun({opaque, Name, _Arity}, {Module, _Type, ArgNames}) ->
+    dict:map(fun({opaque, Name, _Arity}, {{Module, _Form, ArgNames}, _Type}) ->
                  %% Args = args_to_types(ArgNames),
                  %% List = lists:zip(ArgNames, Args),
                  %% TmpVarDict = dict:from_list(List),
@@ -801,11 +789,6 @@ t_struct_from_opaque(Type, _Opaques) -> Type.
 list_struct_from_opaque(Types, Opaques) ->
   [t_struct_from_opaque(Type, Opaques) || Type <- Types].
 
--spec module_builtin_opaques(module()) -> [erl_type()].
-
-module_builtin_opaques(Module) ->
-  [O || O <- all_opaque_builtins(), lists:member(Module, t_opaque_modules(O))].
-
 %%-----------------------------------------------------------------------------
 %% Remote types: these types are used for preprocessing;
 %% they should never reach the analysis stage.
@@ -825,134 +808,6 @@ is_remote(_) -> false.
 
 -type mod_records() :: dict:dict(module(), type_table()).
 
--spec t_solve_remote(erl_type(), sets:set(mfa()), mod_records()) -> erl_type().
-
-t_solve_remote(Type, ExpTypes, Records) ->
-  {RT, _RR} = t_solve_remote(Type, ExpTypes, Records, []),
-  RT.
-
-t_solve_remote(?function(Domain, Range), ET, R, C) ->
-  {RT1, RR1} = t_solve_remote(Domain, ET, R, C),
-  {RT2, RR2} = t_solve_remote(Range, ET, R, C),
-  {?function(RT1, RT2), RR1 ++ RR2};
-t_solve_remote(?list(Types, Term, Size), ET, R, C) ->
-  {RT1, RR1} = t_solve_remote(Types, ET, R, C),
-  {RT2, RR2} = t_solve_remote(Term, ET, R, C),
-  {?list(RT1, RT2, Size), RR1 ++ RR2};
-t_solve_remote(?product(Types), ET, R, C) ->
-  {RL, RR} = list_solve_remote(Types, ET, R, C),
-  {?product(RL), RR};
-t_solve_remote(?opaque(Set), ET, R, C) ->
-  List = ordsets:to_list(Set),
-  {NewList, RR} = opaques_solve_remote(List, ET, R, C),
-  {?opaque(ordsets:from_list(NewList)), RR};
-t_solve_remote(?tuple(?any, _, _) = T, _ET, _R, _C) -> {T, []};
-t_solve_remote(?tuple(Types, _Arity, _Tag), ET, R, C)  ->
-  {RL, RR} = list_solve_remote(Types, ET, R, C),
-  {t_tuple(RL), RR};
-t_solve_remote(?tuple_set(Set), ET, R, C) ->
-  {NewTuples, RR} = tuples_solve_remote(Set, ET, R, C),
-  {t_sup(NewTuples), RR};
-t_solve_remote(?remote(Set), ET, R, C) ->
-  RemoteList = ordsets:to_list(Set),
-  {RL, RR} = list_solve_remote_type(RemoteList, ET, R, C),
-  {t_sup(RL), RR};
-t_solve_remote(?union(List), ET, R, C) ->
-  {RL, RR} = list_solve_remote(List, ET, R, C),
-  {t_sup(RL), RR};
-t_solve_remote(T, _ET, _R, _C) -> {T, []}.
-
-t_solve_remote_type(#remote{mod = RemMod, name = Name, args = Args0} = RemType,
-                    ET, R, C) ->
-  Args = lists:map(fun(A) ->
-                       {Arg, _} = t_solve_remote(A, ET, R, C),
-                       Arg
-                   end, Args0),
-  ArgsLen = length(Args),
-  case dict:find(RemMod, R) of
-    error ->
-      self() ! {self(), ext_types, {RemMod, Name, ArgsLen}},
-      {t_any(), []};
-    {ok, RemDict} ->
-      MFA = {RemMod, Name, ArgsLen},
-      case sets:is_element(MFA, ET) of
-        true ->
-          case lookup_type(Name, ArgsLen, RemDict) of
-            {type, {_Mod, Type, ArgNames}} ->
-              {NewType, NewCycle, NewRR} =
-                case can_unfold_more(RemType, C) of
-                  true ->
-                    List = lists:zip(ArgNames, Args),
-                    TmpVarDict = dict:from_list(List),
-                    {t_from_form(Type, RemDict, TmpVarDict), [RemType|C], []};
-                  false ->
-		    {t_any(), C, [RemType]}
-                end,
-              {RT, RR} = t_solve_remote(NewType, ET, R, NewCycle),
-              RetRR = NewRR ++ RR,
-              RT1 =
-                case lists:member(RemType, RetRR) of
-                  true -> t_limit(RT, ?REC_TYPE_LIMIT);
-                  false -> RT
-                end,
-              {RT1, RetRR};
-            {opaque, {Mod, Type, ArgNames}} ->
-              List = lists:zip(ArgNames, Args),
-              TmpVarDict = dict:from_list(List),
-              {Rep, NewCycle, NewRR} =
-                case can_unfold_more(RemType, C) of
-                  true ->
-		    {t_from_form(Type, RemDict, TmpVarDict), [RemType|C], []};
-                  false ->
-		    {t_any(), C, [RemType]}
-                end,
-              {NewRep, RR} = t_solve_remote(Rep, ET, R, NewCycle),
-              RetRR = NewRR ++ RR,
-              RT1 =
-                case lists:member(RemType, RetRR) of
-                  true -> t_limit(NewRep, ?REC_TYPE_LIMIT);
-                  false -> NewRep
-                end,
-              {skip_opaque_alias(RT1, Mod, Name, Args), RetRR};
-            error ->
-              Msg = io_lib:format("Unable to find remote type ~w:~w()\n",
-                                  [RemMod, Name]),
-              throw({error, Msg})
-          end;
-        false ->
-          self() ! {self(), ext_types, {RemMod, Name, ArgsLen}},
-          {t_any(), []}
-      end
-  end.
-
-list_solve_remote([], _ET, _R, _C) ->
-  {[], []};
-list_solve_remote([Type|Types], ET, R, C) ->
-  {RT, RR1} = t_solve_remote(Type, ET, R, C),
-  {RL, RR2} = list_solve_remote(Types, ET, R, C),
-  {[RT|RL], RR1 ++ RR2}.
-
-list_solve_remote_type([], _ET, _R, _C) ->
-  {[], []};
-list_solve_remote_type([Type|Types], ET, R, C) ->
-  {RT, RR1} = t_solve_remote_type(Type, ET, R, C),
-  {RL, RR2} = list_solve_remote_type(Types, ET, R, C),
-  {[RT|RL], RR1 ++ RR2}.
-
-opaques_solve_remote([], _ET, _R, _C) ->
-  {[], []};
-opaques_solve_remote([#opaque{struct = Struct} = Remote|Tail], ET, R, C) ->
-  {RT, RR1} = t_solve_remote(Struct, ET, R, C),
-  {LOp, RR2} = opaques_solve_remote(Tail, ET, R, C),
-  {[Remote#opaque{struct = RT}|LOp], RR1 ++ RR2}.
-
-tuples_solve_remote([], _ET, _R, _C) ->
-  {[], []};
-tuples_solve_remote([{_Sz, Tuples}|Tail], ET, R, C) ->
-  {RL, RR1} = list_solve_remote(Tuples, ET, R, C),
-  {LSzTpls, RR2} = tuples_solve_remote(Tail, ET, R, C),
-  {RL ++ LSzTpls, RR1 ++ RR2}.
-
 %%-----------------------------------------------------------------------------
 %% Unit type. Signals non termination.
 %%
@@ -1891,17 +1746,6 @@ is_tuple1(_) -> false.
 t_bitstrlist() ->
   t_iolist(1, t_bitstr()).
 
-%% XXX. To be removed.
--spec t_constant() -> erl_type().
-
-t_constant() ->
-  t_sup([t_number(), t_identifier(), t_atom(), t_fun(), t_binary()]).
-
--spec t_is_constant(erl_type()) -> boolean().
-
-t_is_constant(X) ->
-  t_is_subtype(X, t_constant()).
-
 -spec t_arity() -> erl_type().
 
 t_arity() ->
@@ -1987,82 +1831,6 @@ t_parameterized_module() ->
 t_timeout() ->
   t_sup(t_non_neg_integer(), t_atom('infinity')).
 
-%%-----------------------------------------------------------------------------
-%% Some built-in opaque types
-%%
-
--spec t_array() -> erl_type().
-
-t_array() ->
-  t_opaque(array, array, [t_any()],
-	   t_tuple([t_atom('array'),
-		    t_sup([t_atom('undefined'), t_non_neg_integer()]),
-                    t_sup([t_atom('undefined'), t_non_neg_integer()]),
-		    t_any(),
-                    t_any()])).
-
--spec t_dict() -> erl_type().
-
-t_dict() ->
-  t_opaque(dict, dict, [t_any(), t_any()],
-	   t_tuple([t_atom('dict'),
-		    t_sup([t_atom('undefined'), t_non_neg_integer()]),
-		    t_sup([t_atom('undefined'), t_non_neg_integer()]),
-		    t_sup([t_atom('undefined'), t_non_neg_integer()]),
-		    t_sup([t_atom('undefined'), t_non_neg_integer()]),
-		    t_sup([t_atom('undefined'), t_non_neg_integer()]),
-		    t_sup([t_atom('undefined'), t_non_neg_integer()]),
-                    t_sup([t_atom('undefined'), t_tuple()]),
-                    t_sup([t_atom('undefined'), t_tuple()])])).
-
--spec t_digraph() -> erl_type().
-
-t_digraph() ->
-  t_opaque(digraph, digraph, [],
-	   t_tuple([t_atom('digraph'),
-		    t_sup(t_atom(), t_tid()),
-		    t_sup(t_atom(), t_tid()),
-		    t_sup(t_atom(), t_tid()),
-		    t_boolean()])).
-
--spec t_gb_set() -> erl_type().
-
-t_gb_set() ->
-  t_opaque(gb_sets, gb_set, [],
-	   t_tuple([t_non_neg_integer(), t_sup(t_atom('nil'), t_tuple(3))])).
-
--spec t_gb_tree() -> erl_type().
-
-t_gb_tree() ->
-  t_opaque(gb_trees, gb_tree, [],
-	   t_tuple([t_non_neg_integer(), t_sup(t_atom('nil'), t_tuple(4))])).
-
--spec t_queue() -> erl_type().
-
-t_queue() ->
-  t_opaque(queue, queue, [t_any()], t_tuple([t_list(), t_list()])).
-
--spec t_set() -> erl_type().
-
-t_set() ->
-  t_opaque(sets, set, [t_any()],
-	   t_tuple([t_atom('set'), t_non_neg_integer(), t_non_neg_integer(),
-		    t_pos_integer(), t_non_neg_integer(), t_non_neg_integer(),
-		    t_non_neg_integer(),
-                    t_sup([t_atom('undefined'), t_tuple()]),
-                    t_sup([t_atom('undefined'), t_tuple()])])).
-
--spec t_tid() -> erl_type().
-
-t_tid() ->
-  t_opaque(ets, tid, [], t_integer()).
-
--spec all_opaque_builtins() -> [erl_type(),...].
-
-all_opaque_builtins() ->
-  [t_array(), t_dict(), t_digraph(), t_gb_set(),
-   t_gb_tree(), t_queue(), t_set(), t_tid()].
-
 %%------------------------------------
 
 %% ?none is allowed in products. A product of size 1 is not a product.
@@ -2357,14 +2125,19 @@ expand_range_from_set(Range = ?int_range(From, To), Set) ->
 
 -spec t_sup([erl_type()]) -> erl_type().
 
-t_sup([?any|_]) ->
-  ?any;
-t_sup([H1, H2|T]) ->
-  t_sup([t_sup(H1, H2)|T]);
-t_sup([H]) ->
-  subst_all_vars_to_any(H);
-t_sup([]) ->
-  ?none.
+t_sup([]) -> ?none;
+t_sup(Ts) ->
+  case lists:any(fun is_any/1, Ts) of
+    true -> ?any;
+    false ->
+      t_sup1(Ts, [])
+  end.
+
+t_sup1([H1, H2|T], L) ->
+  t_sup1(T, [t_sup(H1, H2)|L]);
+t_sup1([T], []) -> subst_all_vars_to_any(T);
+t_sup1(Ts, L) ->
+  t_sup1(Ts++L, []).
 
 -spec t_sup(erl_type(), erl_type()) -> erl_type().
 
@@ -2850,15 +2623,19 @@ inf_collect(_T1, [], _Opaques, OpL) ->
 combine(S, T1, T2) ->
   #opaque{mod = Mod1, name = Name1, args = Args1} = T1,
   #opaque{mod = Mod2, name = Name2, args = Args2} = T2,
+  Comb1 = comb(Mod1, Name1, Args1, S, T1),
   case is_same_type_name({Mod1, Name1, Args1}, {Mod2, Name2, Args2}) of
-    true  -> [comb(Mod1, Name1, Args1, S, T1)];
-    false -> [comb(Mod1, Name1, Args1, S, T1), comb(Mod2, Name2, Args2, S, T2)]
+    true  -> Comb1;
+    false -> Comb1 ++ comb(Mod2, Name2, Args2, S, T2)
   end.
 
 comb(Mod, Name, Args, S, T) ->
   case is_same_name(Mod, Name, Args, S) of
-    true -> S;
-    false -> T#opaque{struct = S}
+    true ->
+      ?opaque(Set) = S,
+      Set;
+    false ->
+      [T#opaque{struct = S}]
   end.
 
 is_same_name(Mod1, Name1, Args1,
@@ -3182,12 +2959,12 @@ t_subst_aux(T, _VarMap) ->
 subst_all_remote(Type0, Substitute) ->
   Map =
     fun(Type) ->
-        case erl_types:t_is_remote(Type) of
+        case t_is_remote(Type) of
           true -> Substitute;
           false -> Type
         end
     end,
-  erl_types:t_map(Map, Type0).
+  t_map(Map, Type0).
 
 %%-----------------------------------------------------------------------------
 %% Unification
@@ -3317,8 +3094,8 @@ is_opaque_type2(#opaque{mod = Mod1, name = Name1, args = Args1}, Opaques) ->
 
 is_type_name(Mod, Name, Args1, Mod, Name, Args2) ->
   length(Args1) =:= length(Args2);
-is_type_name(Mod1, Name1, Args1, Mod2, Name2, Args2) ->
-  is_same_type_name2(Mod1, Name1, Args1, Mod2, Name2, Args2).
+is_type_name(_Mod1, _Name1, _Args1, _Mod2, _Name2, _Args2) ->
+  false.
 
 %% Two functions since t_unify is not symmetric.
 unify_tuple_set_and_tuple1(?tuple_set([{Arity, List}]),
@@ -3869,7 +3646,7 @@ t_abstract_records(?tuple(Elements, Arity, ?atom(_) = Tag), RecDict) ->
   [TagAtom] = atom_vals(Tag),
   case lookup_record(TagAtom, Arity - 1, RecDict) of
     error -> t_tuple([t_abstract_records(E, RecDict) || E <- Elements]);
-    {ok, Fields} -> t_tuple([Tag|[T || {_Name, T} <- Fields]])
+    {ok, Fields} -> t_tuple([Tag|[T || {_Name, _Abstr, T} <- Fields]])
   end;
 t_abstract_records(?tuple(Elements, _Arity, _Tag), RecDict) ->
   t_tuple([t_abstract_records(E, RecDict) || E <- Elements]);
@@ -4090,7 +3867,8 @@ record_to_string(Tag, [_|Fields], FieldNames, RecDict) ->
   FieldStrings = record_fields_to_string(Fields, FieldNames, RecDict, []),
   "#" ++ atom_to_string(Tag) ++ "{" ++ string:join(FieldStrings, ",") ++ "}".
 
-record_fields_to_string([F|Fs], [{FName, _DefType}|FDefs], RecDict, Acc) ->
+record_fields_to_string([F|Fs], [{FName, _Abstr, _DefType}|FDefs],
+                        RecDict, Acc) ->
   NewAcc =
     case t_is_equal(F, t_any()) orelse t_is_any_atom('undefined', F) of
       true -> Acc;
@@ -4116,7 +3894,7 @@ record_field_diffs_to_string(?tuple([_|Fs], Arity, Tag), RecDict) ->
   FieldDiffs = field_diffs(Fs, FieldNames, RecDict, []),
   string:join(FieldDiffs, " and ").
 
-field_diffs([F|Fs], [{FName, DefType}|FDefs], RecDict, Acc) ->
+field_diffs([F|Fs], [{FName, _Abstr, DefType}|FDefs], RecDict, Acc) ->
   %% Don't care about opaqueness for now.
   NewAcc =
     case not t_is_none(t_inf(F, DefType)) of
@@ -4156,15 +3934,7 @@ opaque_name(Mod, Name, Extra) ->
   flat_format("~s(~s)", [S, Extra]).
 
 mod_name(Mod, Name) ->
-  case is_obsolete_opaque_builtin(Mod, Name) of
-    true  -> flat_format("~w", [Name]);
-    false -> flat_format("~w:~w", [Mod, Name])
-  end.
-
-is_obsolete_opaque_builtin(digraph, digraph) -> true;
-is_obsolete_opaque_builtin(gb_sets, gb_set) -> true;
-is_obsolete_opaque_builtin(gb_trees, gb_tree) -> true;
-is_obsolete_opaque_builtin(_, _) -> false.
+  flat_format("~w:~w", [Mod, Name]).
 
 %%=============================================================================
 %% 
@@ -4172,374 +3942,476 @@ is_obsolete_opaque_builtin(_, _) -> false.
 %%
 %%=============================================================================
 
--spec t_from_form(parse_form()) -> erl_type().
+-type type_names() :: [type_key() | record_key()].
+
+-spec t_from_form(parse_form(), sets:set(mfa()),
+                  module(), mod_records()) -> erl_type().
 
-t_from_form(Form) ->
-  t_from_form(Form, dict:new()).
+t_from_form(Form, ExpTypes, Module, RecDict) ->
+  t_from_form(Form, ExpTypes, Module, RecDict, dict:new()).
 
--spec t_from_form(parse_form(), type_table()) -> erl_type().
+-spec t_from_form(parse_form(), sets:set(mfa()),
+                  module(), mod_records(), var_table()) -> erl_type().
 
-t_from_form(Form, RecDict) ->
-  t_from_form(Form, RecDict, dict:new()).
+t_from_form(Form, ExpTypes, Module, RecDict, VarDict) ->
+  {T, _} = t_from_form1(Form, [], ExpTypes, Module, RecDict, VarDict),
+  T.
 
--spec t_from_form(parse_form(), type_table(), var_table()) -> erl_type().
+%% Replace external types with with none().
+-spec t_from_form_without_remote(parse_form(), type_table()) -> erl_type().
 
-t_from_form(Form, RecDict, VarDict) ->
-  {T, _R} = t_from_form(Form, [], RecDict, VarDict),
+t_from_form_without_remote(Form, TypeTable) ->
+  Module = mod,
+  RecDict = dict:from_list([{Module, TypeTable}]),
+  ExpTypes = replace_by_none,
+  {T, _} = t_from_form1(Form, [], ExpTypes, Module, RecDict, dict:new()),
   T.
 
--type type_names() :: [type_key() | record_key()].
+%% REC_TYPE_LIMIT is used for limiting the depth of recursive types.
+%% EXPAND_LIMIT is used for limiting the size of types by
+%% limiting the number of elements of lists within one type form.
+%% EXPAND_DEPTH is used in conjunction with EXPAND_LIMIT to make the
+%% types balanced (unions will otherwise collapse to any()) by limiting
+%% the depth the same way as t_limit/2 does.
+
+-type expand_limit() :: integer().
+
+-type expand_depth() :: integer().
 
--spec t_from_form(parse_form(), type_names(), type_table(), var_table()) ->
-                     {erl_type(), type_names()}.
+t_from_form1(Form, TypeNames, ET, M, MR, V) ->
+  t_from_form1(Form, TypeNames, ET, M, MR, V, ?EXPAND_DEPTH).
 
-t_from_form({var, _L, '_'}, _TypeNames, _RecDict, _VarDict) ->
-  {t_any(), []};
-t_from_form({var, _L, Name}, _TypeNames, _RecDict, VarDict) ->
-  case dict:find(Name, VarDict) of
-    error -> {t_var(Name), []};
-    {ok, Val} -> {Val, []}
+t_from_form1(Form, TypeNames, ET, M, MR, V, D) ->
+  L = ?EXPAND_LIMIT,
+  {T, L1} = t_from_form(Form, TypeNames, ET, M, MR, V, D, L),
+  if
+    L1 =< 0, D > 1 ->
+      D1 = D div 2,
+      t_from_form1(Form, TypeNames, ET, M, MR, V, D1);
+    true ->
+      {T, L1}
+  end.
+
+-spec t_from_form(parse_form(), type_names(),
+                  sets:set(mfa()) | 'replace_by_none',
+                  module(), mod_records(), var_table(),
+                  expand_depth(), expand_limit())
+                           -> {erl_type(), expand_limit()}.
+
+%% If there is something wrong with parse_form()
+%% throw({error, io_lib:chars()} is called;
+%% for unknown remote types
+%% self() ! {self(), ext_types, {RemMod, Name, ArgsLen}}
+%% is called, unless 'replace_by_none' is given.
+%%
+%% It is assumed that M can be found in MR.
+
+t_from_form(_, _TypeNames, _ET, _M, _MR, _V, D, L) when D =< 0 ; L =< 0 ->
+  {t_any(), L};
+t_from_form({var, _L, '_'}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_any(), L};
+t_from_form({var, _L, Name}, _TypeNames, _ET, _M, _MR, V, _D, L) ->
+  case dict:find(Name, V) of
+    error -> {t_var(Name), L};
+    {ok, Val} -> {Val, L}
   end;
-t_from_form({ann_type, _L, [_Var, Type]}, TypeNames, RecDict, VarDict) ->
-  t_from_form(Type, TypeNames, RecDict, VarDict);
-t_from_form({paren_type, _L, [Type]}, TypeNames, RecDict, VarDict) ->
-  t_from_form(Type, TypeNames, RecDict, VarDict);
+t_from_form({ann_type, _L, [_Var, Type]}, TypeNames, ET, M, MR, V, D, L) ->
+  t_from_form(Type, TypeNames, ET, M, MR, V, D, L);
+t_from_form({paren_type, _L, [Type]}, TypeNames, ET, M, MR, V, D, L) ->
+  t_from_form(Type, TypeNames, ET, M, MR, V, D, L);
 t_from_form({remote_type, _L, [{atom, _, Module}, {atom, _, Type}, Args]},
-	    TypeNames, RecDict, VarDict) ->
-  {L, R} = list_from_form(Args, TypeNames, RecDict, VarDict),
-  {t_remote(Module, Type, L), R};
-t_from_form({atom, _L, Atom}, _TypeNames, _RecDict, _VarDict) ->
-  {t_atom(Atom), []};
-t_from_form({integer, _L, Int}, _TypeNames, _RecDict, _VarDict) ->
-  {t_integer(Int), []};
-t_from_form({op, _L, _Op, _Arg} = Op, _TypeNames, _RecDict, _VarDict) ->
+	    TypeNames, ET, M, MR, V, D, L) ->
+  remote_from_form(Module, Type, Args, TypeNames, ET, M, MR, V, D, L);
+t_from_form({atom, _L, Atom}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_atom(Atom), L};
+t_from_form({integer, _L, Int}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_integer(Int), L};
+t_from_form({op, _L, _Op, _Arg} = Op, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
   case erl_eval:partial_eval(Op) of
     {integer, _, Val} ->
-      {t_integer(Val), []};
+      {t_integer(Val), L};
     _ -> throw({error, io_lib:format("Unable to evaluate type ~w\n", [Op])})
   end;
 t_from_form({op, _L, _Op, _Arg1, _Arg2} = Op, _TypeNames,
-            _RecDict, _VarDict) ->
+            _ET, _M, _MR, _V, _D, L) ->
   case erl_eval:partial_eval(Op) of
     {integer, _, Val} ->
-      {t_integer(Val), []};
+      {t_integer(Val), L};
     _ -> throw({error, io_lib:format("Unable to evaluate type ~w\n", [Op])})
   end;
-t_from_form({type, _L, any, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_any(), []};
-t_from_form({type, _L, arity, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_arity(), []};
-t_from_form({type, _L, array, []}, TypeNames, RecDict, VarDict) ->
-  builtin_type(array, t_array(), [], TypeNames, RecDict, VarDict);
-t_from_form({type, _L, atom, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_atom(), []};
-t_from_form({type, _L, binary, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_binary(), []};
+t_from_form({type, _L, any, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_any(), L};
+t_from_form({type, _L, arity, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_arity(), L};
+t_from_form({type, _L, atom, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_atom(), L};
+t_from_form({type, _L, binary, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_binary(), L};
 t_from_form({type, _L, binary, [Base, Unit]} = Type,
-	    _TypeNames, _RecDict, _VarDict) ->
+	    _TypeNames, _ET, _M, _MR, _V, _D, L) ->
   case {erl_eval:partial_eval(Base), erl_eval:partial_eval(Unit)} of
     {{integer, _, B}, {integer, _, U}} when B >= 0, U >= 0 ->
-      {t_bitstr(U, B), []};
+      {t_bitstr(U, B), L};
     _ -> throw({error, io_lib:format("Unable to evaluate type ~w\n", [Type])})
   end;
-t_from_form({type, _L, bitstring, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_bitstr(), []};
-t_from_form({type, _L, bool, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_boolean(), []};	% XXX: Temporarily
-t_from_form({type, _L, boolean, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_boolean(), []};
-t_from_form({type, _L, byte, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_byte(), []};
-t_from_form({type, _L, char, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_char(), []};
-t_from_form({type, _L, dict, []}, TypeNames, RecDict, VarDict) ->
-  builtin_type(dict, t_dict(), [], TypeNames, RecDict, VarDict);
-t_from_form({type, _L, digraph, []}, TypeNames, RecDict, VarDict) ->
-  builtin_type(digraph, t_digraph(), [], TypeNames, RecDict, VarDict);
-t_from_form({type, _L, float, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_float(), []};
-t_from_form({type, _L, function, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_fun(), []};
-t_from_form({type, _L, 'fun', []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_fun(), []};
+t_from_form({type, _L, bitstring, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_bitstr(), L};
+t_from_form({type, _L, bool, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_boolean(), L};	% XXX: Temporarily
+t_from_form({type, _L, boolean, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_boolean(), L};
+t_from_form({type, _L, byte, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_byte(), L};
+t_from_form({type, _L, char, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_char(), L};
+t_from_form({type, _L, float, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_float(), L};
+t_from_form({type, _L, function, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_fun(), L};
+t_from_form({type, _L, 'fun', []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_fun(), L};
 t_from_form({type, _L, 'fun', [{type, _, any}, Range]}, TypeNames,
-            RecDict, VarDict) ->
-  {T, R} = t_from_form(Range, TypeNames, RecDict, VarDict),
-  {t_fun(T), R};
+            ET, M, MR, V, D, L) ->
+  {T, L1} = t_from_form(Range, TypeNames, ET, M, MR, V, D - 1, L - 1),
+  {t_fun(T), L1};
 t_from_form({type, _L, 'fun', [{type, _, product, Domain}, Range]},
-            TypeNames, RecDict, VarDict) ->
-  {L, R1} = list_from_form(Domain, TypeNames, RecDict, VarDict),
-  {T, R2} = t_from_form(Range, TypeNames, RecDict, VarDict),
-  {t_fun(L, T), R1 ++ R2};
-t_from_form({type, _L, gb_set, []}, TypeNames, RecDict, VarDict) ->
-  builtin_type(gb_set, t_gb_set(), [], TypeNames, RecDict, VarDict);
-t_from_form({type, _L, gb_tree, []}, TypeNames, RecDict, VarDict) ->
-  builtin_type(gb_tree, t_gb_tree(), [], TypeNames, RecDict, VarDict);
-t_from_form({type, _L, identifier, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_identifier(), []};
-t_from_form({type, _L, integer, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_integer(), []};
-t_from_form({type, _L, iodata, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_iodata(), []};
-t_from_form({type, _L, iolist, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_iolist(), []};
-t_from_form({type, _L, list, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_list(), []};
-t_from_form({type, _L, list, [Type]}, TypeNames, RecDict,  VarDict) ->
-  {T, R} = t_from_form(Type, TypeNames, RecDict, VarDict),
-  {t_list(T), R};
-t_from_form({type, _L, map, As0}, TypeNames, RecDict, VarDict) ->
-  As = case is_list(As0) of
-         true -> As0;
-         false -> []
-       end,
-  builtin_type(map, t_map([]), As, TypeNames, RecDict, VarDict);
-t_from_form({type, _L, mfa, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_mfa(), []};
-t_from_form({type, _L, module, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_module(), []};
-t_from_form({type, _L, nil, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_nil(), []};
-t_from_form({type, _L, neg_integer, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_neg_integer(), []};
-t_from_form({type, _L, non_neg_integer, []}, _TypeNames, _RecDict,
-            _VarDict) ->
-  {t_non_neg_integer(), []};
-t_from_form({type, _L, no_return, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_unit(), []};
-t_from_form({type, _L, node, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_node(), []};
-t_from_form({type, _L, none, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_none(), []};
-t_from_form({type, _L, nonempty_list, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_nonempty_list(), []};
-t_from_form({type, _L, nonempty_list, [Type]}, TypeNames, RecDict, VarDict) ->
-  {T, R} = t_from_form(Type, TypeNames, RecDict, VarDict),
-  {t_nonempty_list(T), R};
+            TypeNames, ET, M, MR, V, D, L) ->
+  {Dom1, L1} = list_from_form(Domain, TypeNames, ET, M, MR, V, D, L),
+  {Ran1, L2} = t_from_form(Range, TypeNames, ET, M, MR, V, D - 1, L1),
+  {t_fun(Dom1, Ran1), L2};
+t_from_form({type, _L, identifier, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_identifier(), L};
+t_from_form({type, _L, integer, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_integer(), L};
+t_from_form({type, _L, iodata, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_iodata(), L};
+t_from_form({type, _L, iolist, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_iolist(), L};
+t_from_form({type, _L, list, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_list(), L};
+t_from_form({type, _L, list, [Type]}, TypeNames, ET, M, MR, V, D, L) ->
+  {T, L1} = t_from_form(Type, TypeNames, ET, M, MR, V, D - 1, L - 1),
+  {t_list(T), L1};
+t_from_form({type, _L, map, _}, TypeNames, ET, M, MR, V, D, L) ->
+  builtin_type(map, t_map([]), TypeNames, ET, M, MR, V, D, L);
+t_from_form({type, _L, mfa, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_mfa(), L};
+t_from_form({type, _L, module, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_module(), L};
+t_from_form({type, _L, nil, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_nil(), L};
+t_from_form({type, _L, neg_integer, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_neg_integer(), L};
+t_from_form({type, _L, non_neg_integer, []}, _TypeNames, _ET, _M, _MR,
+               _V, _D, L) ->
+  {t_non_neg_integer(), L};
+t_from_form({type, _L, no_return, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_unit(), L};
+t_from_form({type, _L, node, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_node(), L};
+t_from_form({type, _L, none, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_none(), L};
+t_from_form({type, _L, nonempty_list, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_nonempty_list(), L};
+t_from_form({type, _L, nonempty_list, [Type]}, TypeNames, ET, M, MR, V, D, L) ->
+  {T, L1} = t_from_form(Type, TypeNames, ET, M, MR, V, D, L - 1),
+  {t_nonempty_list(T), L1};
 t_from_form({type, _L, nonempty_improper_list, [Cont, Term]}, TypeNames,
-            RecDict, VarDict) ->
-  {T1, R1} = t_from_form(Cont, TypeNames, RecDict, VarDict),
-  {T2, R2} = t_from_form(Term, TypeNames, RecDict, VarDict),
-  {t_cons(T1, T2), R1 ++ R2};
+            ET, M, MR, V, D, L) ->
+  {T1, L1} = t_from_form(Cont, TypeNames, ET, M, MR, V, D, L - 1),
+  {T2, L2} = t_from_form(Term, TypeNames, ET, M, MR, V, D, L1),
+  {t_cons(T1, T2), L2};
 t_from_form({type, _L, nonempty_maybe_improper_list, []}, _TypeNames,
-            _RecDict, _VarDict) ->
-  {t_cons(?any, ?any), []};
+            _ET, _M, _MR, _V, _D, L) ->
+  {t_cons(?any, ?any), L};
 t_from_form({type, _L, nonempty_maybe_improper_list, [Cont, Term]},
-            TypeNames, RecDict, VarDict) ->
-  {T1, R1} = t_from_form(Cont, TypeNames, RecDict, VarDict),
-  {T2, R2} = t_from_form(Term, TypeNames, RecDict, VarDict),
-  {t_cons(T1, T2), R1 ++ R2};
-t_from_form({type, _L, nonempty_string, []}, _TypeNames, _RecDict,
-            _VarDict) ->
-  {t_nonempty_string(), []};
-t_from_form({type, _L, number, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_number(), []};
-t_from_form({type, _L, pid, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_pid(), []};
-t_from_form({type, _L, port, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_port(), []};
-t_from_form({type, _L, pos_integer, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_pos_integer(), []};
+            TypeNames, ET, M, MR, V, D, L) ->
+  {T1, L1} = t_from_form(Cont, TypeNames, ET, M, MR, V, D, L - 1),
+  {T2, L2} = t_from_form(Term, TypeNames, ET, M, MR, V, D, L1),
+  {t_cons(T1, T2), L2};
+t_from_form({type, _L, nonempty_string, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_nonempty_string(), L};
+t_from_form({type, _L, number, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_number(), L};
+t_from_form({type, _L, pid, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_pid(), L};
+t_from_form({type, _L, port, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_port(), L};
+t_from_form({type, _L, pos_integer, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_pos_integer(), L};
 t_from_form({type, _L, maybe_improper_list, []}, _TypeNames,
-            _RecDict, _VarDict) ->
-  {t_maybe_improper_list(), []};
+            _ET, _M, _MR, _V, _D, L) ->
+  {t_maybe_improper_list(), L};
 t_from_form({type, _L, maybe_improper_list, [Content, Termination]},
-            TypeNames, RecDict, VarDict) ->
-  {T1, R1} = t_from_form(Content, TypeNames, RecDict, VarDict),
-  {T2, R2} = t_from_form(Termination, TypeNames, RecDict, VarDict),
-  {t_maybe_improper_list(T1, T2), R1 ++ R2};
-t_from_form({type, _L, product, Elements}, TypeNames, RecDict, VarDict) ->
-  {L, R} = list_from_form(Elements, TypeNames, RecDict, VarDict),
-  {t_product(L), R};
-t_from_form({type, _L, queue, []}, TypeNames, RecDict, VarDict) ->
-  builtin_type(queue, t_queue(), [], TypeNames, RecDict, VarDict);
+            TypeNames, ET, M, MR, V, D, L) ->
+  {T1, L1} = t_from_form(Content, TypeNames, ET, M, MR, V, D, L - 1),
+  {T2, L2} = t_from_form(Termination, TypeNames, ET, M, MR, V, D, L1),
+  {t_maybe_improper_list(T1, T2), L2};
+t_from_form({type, _L, product, Elements}, TypeNames, ET, M, MR, V, D, L) ->
+  {Lst, L1} = list_from_form(Elements, TypeNames, ET, M, MR, V, D - 1, L),
+  {t_product(Lst), L1};
 t_from_form({type, _L, range, [From, To]} = Type,
-	    _TypeNames, _RecDict, _VarDict) ->
+	    _TypeNames, _ET, _M, _MR, _V, _D, L) ->
   case {erl_eval:partial_eval(From), erl_eval:partial_eval(To)} of
     {{integer, _, FromVal}, {integer, _, ToVal}} ->
-      {t_from_range(FromVal, ToVal), []};
+      {t_from_range(FromVal, ToVal), L};
     _ -> throw({error, io_lib:format("Unable to evaluate type ~w\n", [Type])})
   end;
-t_from_form({type, _L, record, [Name|Fields]}, TypeNames, RecDict, VarDict) ->
-  record_from_form(Name, Fields, TypeNames, RecDict, VarDict);
-t_from_form({type, _L, reference, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_reference(), []};
-t_from_form({type, _L, set, []}, TypeNames, RecDict, VarDict) ->
-  builtin_type(set, t_set(), [], TypeNames, RecDict, VarDict);
-t_from_form({type, _L, string, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_string(), []};
-t_from_form({type, _L, term, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_any(), []};
-t_from_form({type, _L, tid, []}, TypeNames, RecDict, VarDict) ->
-  builtin_type(tid, t_tid(), [], TypeNames, RecDict, VarDict);
-t_from_form({type, _L, timeout, []}, _TypeNames, _RecDict, _VarDict) ->
-  {t_timeout(), []};
-t_from_form({type, _L, tuple, any}, _TypeNames, _RecDict, _VarDict) ->
-  {t_tuple(), []};
-t_from_form({type, _L, tuple, Args}, TypeNames, RecDict, VarDict) ->
-  {L, R} = list_from_form(Args, TypeNames, RecDict, VarDict),
-  {t_tuple(L), R};
-t_from_form({type, _L, union, Args}, TypeNames, RecDict, VarDict) ->
-  {L, R} = list_from_form(Args, TypeNames, RecDict, VarDict),
-  {t_sup(L), R};
-t_from_form({type, _L, Name, Args}, TypeNames, RecDict, VarDict) ->
-  type_from_form(Name, Args, TypeNames, RecDict, VarDict);
+t_from_form({type, _L, record, [Name|Fields]}, TypeNames, ET, M, MR, V, D, L) ->
+  record_from_form(Name, Fields, TypeNames, ET, M, MR, V, D, L);
+t_from_form({type, _L, reference, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_reference(), L};
+t_from_form({type, _L, string, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_string(), L};
+t_from_form({type, _L, term, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_any(), L};
+t_from_form({type, _L, timeout, []}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_timeout(), L};
+t_from_form({type, _L, tuple, any}, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {t_tuple(), L};
+t_from_form({type, _L, tuple, Args}, TypeNames, ET, M, MR, V, D, L) ->
+  {Lst, L1} = list_from_form(Args, TypeNames, ET, M, MR, V, D - 1, L),
+  {t_tuple(Lst), L1};
+t_from_form({type, _L, union, Args}, TypeNames, ET, M, MR, V, D, L) ->
+  {Lst, L1} = list_from_form(Args, TypeNames, ET, M, MR, V, D, L),
+  {t_sup(Lst), L1};
+t_from_form({user_type, _L, Name, Args}, TypeNames, ET, M, MR, V, D, L) ->
+  type_from_form(Name, Args, TypeNames, ET, M, MR, V, D, L);
+t_from_form({type, _L, Name, Args}, TypeNames, ET, M, MR, V, D, L) ->
+  %% Compatibility: modules compiled before Erlang/OTP 18.0.
+  type_from_form(Name, Args, TypeNames, ET, M, MR, V, D, L);
 t_from_form({opaque, _L, Name, {Mod, Args, Rep}}, _TypeNames,
-            _RecDict, _VarDict) ->
-  {t_opaque(Mod, Name, Args, Rep), []}.
-
-builtin_type(Name, Type, Args, TypeNames, RecDict, VarDict) ->
-  case lookup_type(Name, length(Args), RecDict) of
-    {_, {_M, _T, _A}} ->
-      type_from_form(Name, Args, TypeNames, RecDict, VarDict);
+            _ET, _M, _MR, _V, _D, L) ->
+  %% XXX. To be removed.
+  {t_opaque(Mod, Name, Args, Rep), L}.
+
+builtin_type(Name, Type, TypeNames, ET, M, MR, V, D, L) ->
+  case dict:find(M, MR) of
+    {ok, R} ->
+      case lookup_type(Name, 0, R) of
+        {_, {{_M, _F, _A}, _T}} ->
+          type_from_form(Name, [], TypeNames, ET, M, MR, V, D, L);
+        error ->
+          {Type, L}
+      end;
     error ->
-      {Type, []}
+      {Type, L}
   end.
 
-type_from_form(Name, Args, TypeNames, RecDict, VarDict) ->
+type_from_form(Name, Args, TypeNames, ET, M, MR, V, D, L) ->
   ArgsLen = length(Args),
-  ArgTypes = forms_to_types(Args, TypeNames, RecDict, VarDict),
-  case lookup_type(Name, ArgsLen, RecDict) of
-    {type, {_Module, Type, ArgNames}} ->
-      TypeName = {type, Name, ArgsLen},
+  {ArgTypes, L1} = list_from_form(Args, TypeNames, ET, M, MR, V, D, L),
+  {ok, R} = dict:find(M, MR),
+  case lookup_type(Name, ArgsLen, R) of
+    {type, {{Module, Form, ArgNames}, _Type}} ->
+      TypeName = {type, Module, Name, ArgsLen},
       case can_unfold_more(TypeName, TypeNames) of
         true ->
           List = lists:zip(ArgNames, ArgTypes),
-          TmpVarDict = dict:from_list(List),
-          {T, R} = t_from_form(Type, [TypeName|TypeNames],
-                               RecDict, TmpVarDict),
-          case lists:member(TypeName, R) of
-            true -> {t_limit(T, ?REC_TYPE_LIMIT), R};
-            false -> {T, R}
-          end;
-        false -> {t_any(), [TypeName]}
+          TmpV = dict:from_list(List),
+          t_from_form(Form, [TypeName|TypeNames], ET, M, MR, TmpV, D, L1);
+        false ->
+          {t_any(), L1}
       end;
-    {opaque, {Module, Type, ArgNames}} ->
-      TypeName = {opaque, Name, ArgsLen},
-      {Rep, Rret} =
+    {opaque, {{Module, Form, ArgNames}, Type}} ->
+      TypeName = {opaque, Module, Name, ArgsLen},
+      {Rep, L2} =
         case can_unfold_more(TypeName, TypeNames) of
           true ->
             List = lists:zip(ArgNames, ArgTypes),
-            TmpVarDict = dict:from_list(List),
-            {T, R} = t_from_form(Type, [TypeName|TypeNames],
-                                 RecDict, TmpVarDict),
-            case lists:member(TypeName, R) of
-              true -> {t_limit(T, ?REC_TYPE_LIMIT), R};
-              false -> {T, R}
-            end;
-          false -> {t_any(), [TypeName]}
+            TmpV = dict:from_list(List),
+            t_from_form(Form, [TypeName|TypeNames], ET, M, MR, TmpV, D, L1);
+          false -> {t_any(), L1}
         end,
+      Rep1 = choose_opaque_type(Rep, Type),
       Args2 = [subst_all_vars_to_any(ArgType) || ArgType <- ArgTypes],
-      {skip_opaque_alias(Rep, Module, Name, Args2), Rret};
+      {skip_opaque_alias(Rep1, Module, Name, Args2), L2};
     error ->
       Msg = io_lib:format("Unable to find type ~w/~w\n", [Name, ArgsLen]),
       throw({error, Msg})
   end.
 
-forms_to_types(Forms, TypeNames, RecDict, VarDict) ->
-  {Types, _} = list_from_form(Forms, TypeNames, RecDict, VarDict),
-  Types.
-
 skip_opaque_alias(?opaque(_) = T, _Mod, _Name, _Args) -> T;
 skip_opaque_alias(T, Module, Name, Args) ->
   t_opaque(Module, Name, Args, T).
 
-record_from_form({atom, _, Name}, ModFields, TypeNames, RecDict, VarDict) ->
+remote_from_form(RemMod, Name, Args, TypeNames, ET, M, MR, V, D, L) ->
+  {ArgTypes, L1} = list_from_form(Args, TypeNames, ET, M, MR, V, D, L),
+  if
+    ET =:= replace_by_none ->
+      {t_none(), L1};
+    true ->
+      ArgsLen = length(Args),
+      case dict:find(RemMod, MR) of
+        error ->
+          self() ! {self(), ext_types, {RemMod, Name, ArgsLen}},
+          {t_any(), L1};
+        {ok, RemDict} ->
+          MFA = {RemMod, Name, ArgsLen},
+          case sets:is_element(MFA, ET) of
+            true ->
+              case lookup_type(Name, ArgsLen, RemDict) of
+                {type, {{_Mod, Form, ArgNames}, _Type}} ->
+                  RemType = {type, RemMod, Name, ArgsLen},
+                  case can_unfold_more(RemType, TypeNames) of
+                    true ->
+                      List = lists:zip(ArgNames, ArgTypes),
+                      TmpVarDict = dict:from_list(List),
+                      NewTypeNames = [RemType|TypeNames],
+                      t_from_form(Form, NewTypeNames, ET,
+                                  RemMod, MR, TmpVarDict, D, L1);
+                    false ->
+                      {t_any(), L1}
+                  end;
+                {opaque, {{Mod, Form, ArgNames}, Type}} ->
+                  RemType = {opaque, RemMod, Name, ArgsLen},
+                  List = lists:zip(ArgNames, ArgTypes),
+                  TmpVarDict = dict:from_list(List),
+                  {NewRep, L2} =
+                    case can_unfold_more(RemType, TypeNames) of
+                      true ->
+                        NewTypeNames = [RemType|TypeNames],
+                        t_from_form(Form, NewTypeNames, ET, RemMod, MR,
+                                    TmpVarDict, D, L1);
+                      false ->
+                        {t_any(), L1}
+                    end,
+                  NewRep1 = choose_opaque_type(NewRep, Type),
+                  {skip_opaque_alias(NewRep1, Mod, Name, ArgTypes), L2};
+                error ->
+                  Msg = io_lib:format("Unable to find remote type ~w:~w()\n",
+                                      [RemMod, Name]),
+                  throw({error, Msg})
+              end;
+            false ->
+              self() ! {self(), ext_types, {RemMod, Name, ArgsLen}},
+              {t_any(), L1}
+          end
+      end
+  end.
+
+%% Opaque types (both local and remote) are problematic when it comes
+%% to the limits (TypeNames, D, and L). The reason is that if any() is
+%% substituted for a more specialized subtype of an opaque type, the
+%% property stated along with decorate_with_opaque() (the type has to
+%% be a subtype of the declared type) no longer holds.
+%%
+%% The less than perfect remedy: if the opaque type created from a
+%% form is not a subset of the declared type, the declared type is
+%% used instead, effectively bypassing the limits, and potentially
+%% resulting in huge types.
+choose_opaque_type(Type, DeclType) ->
+  case
+    t_is_subtype(subst_all_vars_to_any(Type),
+                 subst_all_vars_to_any(DeclType))
+  of
+    true -> Type;
+    false -> DeclType
+  end.
+
+record_from_form({atom, _, Name}, ModFields, TypeNames, ET, M, MR, V, D, L) ->
   case can_unfold_more({record, Name}, TypeNames) of
     true ->
-      case lookup_record(Name, RecDict) of
+      {ok, R} = dict:find(M, MR),
+      case lookup_record(Name, R) of
         {ok, DeclFields} ->
-          TypeNames1 = [{record, Name}|TypeNames],
-          AreTyped = [is_erl_type(FieldType)
-                      || {_FieldName, FieldType} <- DeclFields],
-          {DeclFields1, R1} =
-            case lists:all(fun(Elem) -> Elem end, AreTyped) of
-              true -> {DeclFields, []};
-              false -> fields_from_form(DeclFields, TypeNames1,
-                                        RecDict, dict:new())
-            end,
-          {GetModRec, R2} = get_mod_record(ModFields, DeclFields1,
-                                           TypeNames1,
-                                           RecDict, VarDict),
+          NewTypeNames = [{record, Name}|TypeNames],
+          {GetModRec, L1} = get_mod_record(ModFields, DeclFields,
+                                           NewTypeNames, ET, M, MR, V, D, L),
           case GetModRec of
             {error, FieldName} ->
               throw({error, io_lib:format("Illegal declaration of #~w{~w}\n",
                                           [Name, FieldName])});
             {ok, NewFields} ->
-              {t_tuple(
-                 [t_atom(Name)|[Type || {_FieldName, Type} <- NewFields]]),
-               R1 ++ R2}
+              {NewFields1, L2} =
+                fields_from_form(NewFields, NewTypeNames, ET, M, MR,
+                                 dict:new(), D, L1),
+              Rec = t_tuple(
+                      [t_atom(Name)|[Type
+                                     || {_FieldName, Type} <- NewFields1]]),
+              {Rec, L2}
           end;
         error ->
           throw({error, io_lib:format("Unknown record #~w{}\n", [Name])})
       end;
-    false -> {t_any(), []}
+    false ->
+       {t_any(), L}
   end.
 
-get_mod_record([], DeclFields, _TypeNames, _RecDict, _VarDict) ->
-  {{ok, DeclFields}, []};
-get_mod_record(ModFields, DeclFields, TypeNames, RecDict, VarDict) ->
-  DeclFieldsDict = orddict:from_list(DeclFields),
-  {ModFieldsDict, R} = build_field_dict(ModFields, TypeNames,
-                                        RecDict, VarDict),
-  case get_mod_record(DeclFieldsDict, ModFieldsDict, []) of
-    {error, _FieldName} = Error -> {Error, R};
-    {ok, FinalOrdDict} ->
-      {{ok, [{FieldName, orddict:fetch(FieldName, FinalOrdDict)}
-             || {FieldName, _} <- DeclFields]},
-       R}
+get_mod_record([], DeclFields, _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {{ok, DeclFields}, L};
+get_mod_record(ModFields, DeclFields, TypeNames, ET, M, MR, V, D, L) ->
+  DeclFieldsDict = lists:keysort(1, DeclFields),
+  {ModFieldsDict, L1} =
+    build_field_dict(ModFields, TypeNames, ET, M, MR, V, D, L),
+  case get_mod_record_types(DeclFieldsDict, ModFieldsDict, []) of
+    {error, _FieldName} = Error -> {Error, L1};
+    {ok, FinalKeyDict} ->
+      Fields = [lists:keyfind(FieldName, 1, FinalKeyDict)
+             || {FieldName, _, _} <- DeclFields],
+      {{ok, Fields}, L1}
   end.
 
-build_field_dict(FieldTypes, TypeNames, RecDict, VarDict) ->
-  build_field_dict(FieldTypes, TypeNames, RecDict, VarDict, []).
-
-build_field_dict([{type, _, field_type, [{atom, _, Name}, Type]}|Left], 
-		 TypeNames, RecDict, VarDict, Acc) ->
-  {T, R1} = t_from_form(Type, TypeNames, RecDict, VarDict),
-  NewAcc = [{Name, T}|Acc],
-  {D, R2} = build_field_dict(Left, TypeNames, RecDict, VarDict, NewAcc),
-  {D, R1 ++ R2};
-build_field_dict([], _TypeNames, _RecDict, _VarDict, Acc) ->
-  {orddict:from_list(Acc), []}.
-
-get_mod_record([{FieldName, DeclType}|Left1], 
-	       [{FieldName, ModType}|Left2], Acc) ->
-  ModTypeNoVars = subst_all_vars_to_any(ModType),
-  case
-    contains_remote(ModTypeNoVars)
-    orelse contains_remote(DeclType)
-    orelse t_is_subtype(ModTypeNoVars, DeclType)
-  of
+build_field_dict(FieldTypes, TypeNames, ET, M, MR, V, D, L) ->
+  build_field_dict(FieldTypes, TypeNames, ET, M, MR, V, D, L, []).
+
+build_field_dict([{type, _, field_type, [{atom, _, Name}, Type]}|Left],
+		 TypeNames, ET, M, MR, V, D, L, Acc) ->
+  {T, L1} = t_from_form(Type, TypeNames, ET, M, MR, V, D, L - 1),
+  %% The cached record field type (DeclType) in
+  %% get_mod_record_types()), was created with a similar call as TT.
+  %% Using T for the subtype test does not work since any() is not
+  %% always a subset of the field type.
+  TT = t_from_form(Type, ET, M, MR, V),
+  NewAcc = [{Name, Type, T, TT}|Acc],
+  {Dict, L2} =
+    build_field_dict(Left, TypeNames, ET, M, MR, V, D, L1, NewAcc),
+  {Dict, L2};
+build_field_dict([], _TypeNames, _ET, _M, _MR, _V, _D, L, Acc) ->
+  {lists:keysort(1, Acc), L}.
+
+get_mod_record_types([{FieldName, _Abstr, DeclType}|Left1],
+                     [{FieldName, TypeForm, ModType, ModTypeTest}|Left2],
+                     Acc) ->
+  ModTypeNoVars = subst_all_vars_to_any(ModTypeTest),
+  case t_is_subtype(ModTypeNoVars, DeclType) of
     false -> {error, FieldName};
-    true -> get_mod_record(Left1, Left2, [{FieldName, ModType}|Acc])
+    true -> get_mod_record_types(Left1, Left2,
+                              [{FieldName, TypeForm, ModType}|Acc])
   end;
-get_mod_record([{FieldName1, _DeclType} = DT|Left1], 
-	       [{FieldName2, _ModType}|_] = List2, 
-	       Acc) when FieldName1 < FieldName2 ->
-  get_mod_record(Left1, List2, [DT|Acc]);
-get_mod_record(DeclFields, [], Acc) ->
-  {ok, orddict:from_list(Acc ++ DeclFields)};
-get_mod_record(_, [{FieldName2, _ModType}|_], _Acc) ->
+get_mod_record_types([{FieldName1, _Abstr, _DeclType} = DT|Left1],
+                     [{FieldName2, _FormType, _ModType, _TT}|_] = List2,
+                     Acc) when FieldName1 < FieldName2 ->
+  get_mod_record_types(Left1, List2, [DT|Acc]);
+get_mod_record_types(Left1, [], Acc) ->
+  {ok, lists:keysort(1, Left1++Acc)};
+get_mod_record_types(_, [{FieldName2, _FormType, _ModType, _TT}|_], _Acc) ->
   {error, FieldName2}.
 
-contains_remote(Type) ->
-  TypeNoRemote = subst_all_remote(Type, t_none()),
-  not t_is_equal(Type, TypeNoRemote).
-
-fields_from_form([], _TypeNames, _RecDict, _VarDict) ->
-  {[], []};
-fields_from_form([{Name, Type}|Tail], TypeNames, RecDict,
-                 VarDict) ->
-  {T, R1} = t_from_form(Type, TypeNames, RecDict, VarDict),
-  {F, R2} = fields_from_form(Tail, TypeNames, RecDict, VarDict),
-  {[{Name, T}|F], R1 ++ R2}.
-
-list_from_form([], _TypeNames, _RecDict, _VarDict) ->
-  {[], []};
-list_from_form([H|Tail], TypeNames, RecDict, VarDict) ->
-  {T, R1} = t_from_form(H, TypeNames, RecDict, VarDict),
-  {L, R2} = list_from_form(Tail, TypeNames, RecDict, VarDict),
-  {[T|L], R1 ++ R2}.
+%% It is important to create a limited version of the record type
+%% since nested record types can otherwise easily result in huge
+%% terms.
+fields_from_form([], _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {[], L};
+fields_from_form([{Name, Abstr, _Type}|Tail], TypeNames, ET, M, MR,
+                 V, D, L) ->
+  {T, L1} = t_from_form(Abstr, TypeNames, ET, M, MR, V, D, L),
+  {F, L2} = fields_from_form(Tail, TypeNames, ET, M, MR, V, D, L1),
+  {[{Name, T}|F], L2}.
+
+list_from_form([], _TypeNames, _ET, _M, _MR, _V, _D, L) ->
+  {[], L};
+list_from_form([H|Tail], TypeNames, ET, M, MR, V, D, L) ->
+  {H1, L1} = t_from_form(H, TypeNames, ET, M, MR, V, D, L - 1),
+  {T1, L2} = list_from_form(Tail, TypeNames, ET, M, MR, V, D, L1),
+  {[H1|T1], L2}.
+
+-spec t_var_names([erl_type()]) -> [atom()].
+
+t_var_names([{var, _, Name}|L]) when L =/= '_' ->
+  [Name|t_var_names(L)];
+t_var_names([]) ->
+  [].
 
 -spec t_form_to_string(parse_form()) -> string().
 
@@ -4592,7 +4464,7 @@ t_form_to_string({type, _L, iodata, []}) -> "iodata()";
 t_form_to_string({type, _L, iolist, []}) -> "iolist()";
 t_form_to_string({type, _L, list, [Type]}) -> 
   "[" ++ t_form_to_string(Type) ++ "]";
-t_form_to_string({type, _L, map, Args}) when not is_list(Args) ->
+t_form_to_string({type, _L, map, _}) ->
   "#{}";
 t_form_to_string({type, _L, mfa, []}) -> "mfa()";
 t_form_to_string({type, _L, module, []}) -> "module()";
@@ -4623,12 +4495,21 @@ t_form_to_string({type, _L, tuple, Args}) ->
 t_form_to_string({type, _L, union, Args}) ->
   string:join(t_form_to_string_list(Args), " | ");
 t_form_to_string({type, _L, Name, []} = T) ->
-  try t_to_string(t_from_form(T))
+   try
+     M = mod,
+     D0 = dict:new(),
+     MR = dict:from_list([{M, D0}]),
+     {T1, _} =
+       t_from_form(T, [], sets:new(), M, MR, D0, _Deep=1000, _ALot=100000),
+     t_to_string(T1)
   catch throw:{error, _} -> atom_to_string(Name) ++ "()"
   end;
-t_form_to_string({type, _L, Name, List}) -> 
+t_form_to_string({user_type, _L, Name, List}) ->
   flat_format("~w(~s)",
-              [Name, string:join(t_form_to_string_list(List), ",")]).
+              [Name, string:join(t_form_to_string_list(List), ",")]);
+t_form_to_string({type, L, Name, List}) ->
+  %% Compatibility: modules compiled before Erlang/OTP 18.0.
+  t_form_to_string({user_type, L, Name, List}).
 
 t_form_to_string_list(List) ->
   t_form_to_string_list(List, []).
@@ -4671,7 +4552,7 @@ is_erl_type(#c{}) -> true;
 is_erl_type(_) -> false.
 
 -spec lookup_record(atom(), type_table()) ->
-        'error' | {'ok', [{atom(), parse_form() | erl_type()}]}.
+        'error' | {'ok', [{atom(), parse_form(), erl_type()}]}.
 
 lookup_record(Tag, RecDict) when is_atom(Tag) ->
   case dict:find({record, Tag}, RecDict) of
@@ -4686,7 +4567,7 @@ lookup_record(Tag, RecDict) when is_atom(Tag) ->
   end.
 
 -spec lookup_record(atom(), arity(), type_table()) ->
-        'error' | {'ok', [{atom(), erl_type()}]}.
+        'error' | {'ok', [{atom(), parse_form(), erl_type()}]}.
 
 lookup_record(Tag, Arity, RecDict) when is_atom(Tag) ->
   case dict:find({record, Tag}, RecDict) of
@@ -4741,27 +4622,14 @@ do_opaque(Type, _Opaques, Pred) ->
 is_same_type_name(ModNameArgs, ModNameArgs) -> true;
 is_same_type_name({Mod, Name, Args1}, {Mod, Name, Args2}) ->
   all_any(Args1) orelse all_any(Args2);
-is_same_type_name({Mod1, Name1, Args1}, {Mod2, Name2, Args2}) ->
-  is_same_type_name2(Mod1, Name1, Args1, Mod2, Name2, Args2).
+is_same_type_name(_ModNameArgs1, _ModNameArgs2) ->
+  false.
 
 all_any([]) -> true;
 all_any([T|L]) ->
   t_is_any(T) andalso all_any(L);
 all_any(_) -> false.
 
-%% Compatibility. In Erlang/OTP 17 the pre-defined opaque types
-%% digraph() and so on can be used, but there are also new types such
-%% as digraph:graph() with the exact same meaning. In Erlang/OTP R18.0
-%% all but the last clause can be removed.
-
-is_same_type_name2(digraph,  digraph, [], digraph,  graph, [])   -> true;
-is_same_type_name2(digraph,  graph, [],   digraph,  digraph, []) -> true;
-is_same_type_name2(gb_sets,  gb_set, [],  gb_sets,  set, [_]) -> true;
-is_same_type_name2(gb_sets,  set, [_], gb_sets,  gb_set, [])  -> true;
-is_same_type_name2(gb_trees, gb_tree, [], gb_trees, tree, [_, _]) -> true;
-is_same_type_name2(gb_trees, tree, [_, _], gb_trees, gb_tree, []) -> true;
-is_same_type_name2(_, _, _, _, _, _) -> false.
-
 map_keys(?map(Pairs)) ->
   [K || {K, _} <- Pairs].
 
diff --git a/lib/hipe/icode/hipe_beam_to_icode.erl b/lib/hipe/icode/hipe_beam_to_icode.erl
index 4691662f9f..3e099fcc25 100644
--- a/lib/hipe/icode/hipe_beam_to_icode.erl
+++ b/lib/hipe/icode/hipe_beam_to_icode.erl
@@ -1584,11 +1584,7 @@ gen_put_map_instrs(exists, Op, TempMapVar, Dst, FailLbl, Pairs, Env) ->
       end,
   {[IsMapCode, TrueLabel, PutInstructions, ReturnLbl], Env1};
 gen_put_map_instrs(new, Op, TempMapVar, Dst, new, Pairs, Env) ->
-  TrueLabel = mk_label(new),
   FailLbl = mk_label(new),
-  IsMapCode = hipe_icode:mk_type([TempMapVar], map,
-				 hipe_icode:label_name(TrueLabel),
-				 hipe_icode:label_name(FailLbl)),
   DstMapVar = mk_var(Dst),
   {ReturnLbl, PutInstructions, Env1}
     = case Op of
@@ -1596,10 +1592,10 @@ gen_put_map_instrs(new, Op, TempMapVar, Dst, new, Pairs, Env) ->
 	  trans_put_map_assoc(TempMapVar, DstMapVar, Pairs, Env, []);
 	exact ->
 	  trans_put_map_exact(TempMapVar, DstMapVar,
-	    hipe_icode:label_name(FailLbl), Pairs, Env, [])
+			      none, Pairs, Env, [])
       end,
   Fail = hipe_icode:mk_fail([hipe_icode:mk_const(badarg)], error),
-  {[IsMapCode, TrueLabel, PutInstructions, FailLbl, Fail, ReturnLbl], Env1}.
+  {[PutInstructions, FailLbl, Fail, ReturnLbl], Env1}.
 
 %%-----------------------------------------------------------------------
 %% This function generates the instructions needed to insert several
@@ -1629,6 +1625,13 @@ trans_put_map_exact(MapVar, DestMapVar, _FLbl, [], Env, Acc) ->
   ReturnLbl = mk_label(new),
   GotoReturn = hipe_icode:mk_goto(hipe_icode:label_name(ReturnLbl)),
   {ReturnLbl, lists:reverse([GotoReturn, MoveToReturnVar | Acc]), Env};
+trans_put_map_exact(MapVar, DestMapVar, none, [Key, Value | Rest], Env, Acc) ->
+  {MoveKey, KeyVar, Env1} = mk_move_and_var(Key, Env),
+  {MoveVal, ValVar, Env2} = mk_move_and_var(Value, Env1),
+  BifCallPut = hipe_icode:mk_call([MapVar], maps, update,
+				  [KeyVar, ValVar, MapVar], remote),
+  Acc1 = [BifCallPut, MoveVal, MoveKey | Acc],
+  trans_put_map_exact(MapVar, DestMapVar, none, Rest, Env2, Acc1);
 trans_put_map_exact(MapVar, DestMapVar, FLbl, [Key, Value | Rest], Env, Acc) ->
   SuccLbl = mk_label(new),
   {MoveKey, KeyVar, Env1} = mk_move_and_var(Key, Env),
diff --git a/lib/hipe/llvm/hipe_llvm_main.erl b/lib/hipe/llvm/hipe_llvm_main.erl
index 0e50c9539b..3c24425828 100644
--- a/lib/hipe/llvm/hipe_llvm_main.erl
+++ b/lib/hipe/llvm/hipe_llvm_main.erl
@@ -465,7 +465,7 @@ remove_temp_folder(Dir, Options) ->
   end.
 
 unique_id(FunName, Arity) ->
-  integer_to_list(erlang:phash2({FunName, Arity, now()})).
+  integer_to_list(erlang:phash2({FunName, Arity, erlang:unique_integer()})).
 
 unique_folder(FunName, Arity, Options) ->
   DirName = "llvm_" ++ unique_id(FunName, Arity) ++ "/",
diff --git a/lib/hipe/main/hipe.app.src b/lib/hipe/main/hipe.app.src
index e81212d4dc..7b6d9e30e3 100644
--- a/lib/hipe/main/hipe.app.src
+++ b/lib/hipe/main/hipe.app.src
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2002-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2002-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -223,5 +223,5 @@
   {registered,[]},
   {applications, [kernel,stdlib]},
   {env, []},
-  {runtime_dependencies, ["syntax_tools-1.6.14","stdlib-2.0","kernel-3.0",
-			  "erts-6.0","compiler-5.0"]}]}.
+  {runtime_dependencies, ["syntax_tools-1.6.14","stdlib-2.5","kernel-3.0",
+			  "erts-7.0","compiler-5.0"]}]}.
diff --git a/lib/hipe/rtl/hipe_rtl_binary_match.erl b/lib/hipe/rtl/hipe_rtl_binary_match.erl
index af8903904b..a36a024980 100644
--- a/lib/hipe/rtl/hipe_rtl_binary_match.erl
+++ b/lib/hipe/rtl/hipe_rtl_binary_match.erl
@@ -697,13 +697,22 @@ get_binary_bytes(Binary, BinSize, Base, Offset, Orig,
 %%%%%%%%%%%%%%%%%%%%%%%%% UTILS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 get_base(Orig,Base) ->
-  [HeapLbl,REFCLbl,EndLbl] = create_lbls(3),
+  [HeapLbl,REFCLbl,WritableLbl,NotWritableLbl,EndLbl] = create_lbls(5),
+  Flags = hipe_rtl:mk_new_reg_gcsafe(),
+
   [hipe_tagscheme:test_heap_binary(Orig, hipe_rtl:label_name(HeapLbl),
 				   hipe_rtl:label_name(REFCLbl)),
    HeapLbl,
    hipe_rtl:mk_alu(Base, Orig, 'add', hipe_rtl:mk_imm(?HEAP_BIN_DATA-2)),
    hipe_rtl:mk_goto(hipe_rtl:label_name(EndLbl)),
    REFCLbl,
+   get_field_from_term({proc_bin, flags}, Orig, Flags),
+   hipe_rtl:mk_branch(Flags, 'ne', hipe_rtl:mk_imm(0),
+		      hipe_rtl:label_name(WritableLbl),
+		      hipe_rtl:label_name(NotWritableLbl)),
+   WritableLbl,
+   hipe_rtl:mk_call([], emasculate_binary, [Orig], [], [], 'not_remote'),
+   NotWritableLbl,
    hipe_rtl:mk_load(Base, Orig, hipe_rtl:mk_imm(?PROC_BIN_BYTES-2)),
    EndLbl].
 
diff --git a/lib/hipe/test/bs_SUITE_data/bs_match.erl b/lib/hipe/test/bs_SUITE_data/bs_match.erl
index 8194d878b8..7bc93a316b 100644
--- a/lib/hipe/test/bs_SUITE_data/bs_match.erl
+++ b/lib/hipe/test/bs_SUITE_data/bs_match.erl
@@ -12,7 +12,8 @@
 
 test() ->
   Funs = [fun test_aligned/0, fun test_unaligned/0,
-	  fun test_zero_tail/0, fun test_integer_matching/0],
+	  fun test_zero_tail/0, fun test_integer_matching/0,
+	  fun test_writable_bin/0],
   lists:foreach(fun (F) -> ok = F() end, Funs).
 
 %%-------------------------------------------------------------------
@@ -173,3 +174,14 @@ test_dynamic_integer_matching(N) ->
   <<12:N/integer, 0:S>> = <<12:N/integer, 0:S>>,
   <<12:N/integer-little, 0:S>> = <<12:N/integer-little, 0:S>>,
   ok.
+
+test_writable_bin() ->
+  test_writable_bin(<<>>, 0),
+  ok.
+
+test_writable_bin(Bin, 128) ->
+  Bin;
+test_writable_bin(Bin0, N) when N < 128 ->
+  Bin1 = <<Bin0/binary, N>>,
+  <<_/utf8, _/binary>> = Bin1,
+  test_writable_bin(Bin1, N+1).
diff --git a/lib/hipe/test/maps_SUITE_data/maps_map_size.erl b/lib/hipe/test/maps_SUITE_data/maps_map_size.erl
index 25c8e5d4c7..3cd2d90dfb 100644
--- a/lib/hipe/test/maps_SUITE_data/maps_map_size.erl
+++ b/lib/hipe/test/maps_SUITE_data/maps_map_size.erl
@@ -17,9 +17,9 @@ test() ->
     false = map_is_size(M#{ "c" => 2}, 2),
 
     %% Error cases.
-    {'EXIT',{badarg,_}} = (catch map_size([])),
-    {'EXIT',{badarg,_}} = (catch map_size(<<1,2,3>>)),
-    {'EXIT',{badarg,_}} = (catch map_size(1)),
+    {'EXIT',{{badmap,[]},_}} = (catch map_size([])),
+    {'EXIT',{{badmap,<<1,2,3>>},_}} = (catch map_size(<<1,2,3>>)),
+    {'EXIT',{{badmap,1},_}} = (catch map_size(1)),
     ok.
 
 map_is_size(M,N) when map_size(M) =:= N -> true;
diff --git a/lib/hipe/test/maps_SUITE_data/maps_map_sort_literals.erl b/lib/hipe/test/maps_SUITE_data/maps_map_sort_literals.erl
index 31abf15d49..ccacbfe5c8 100644
--- a/lib/hipe/test/maps_SUITE_data/maps_map_sort_literals.erl
+++ b/lib/hipe/test/maps_SUITE_data/maps_map_sort_literals.erl
@@ -10,23 +10,25 @@ test() ->
     false = #{ c => 1, b => 1, a => 1} < id(#{ c => 1, a => 1}),
 
     %% key order
-    true  = id(#{ a => 1 }) < id(#{ b => 1}),
-    false = id(#{ b => 1 }) < id(#{ a => 1}),
-    true  = id(#{ a => 1, b => 1, c => 1 }) < id(#{ b => 1, c => 1, d => 1}),
-    true  = id(#{ b => 1, c => 1, d => 1 }) > id(#{ a => 1, b => 1, c => 1}),
-    true  = id(#{ c => 1, b => 1, a => 1 }) < id(#{ b => 1, c => 1, d => 1}),
-    true  = id(#{ "a" => 1 }) < id(#{ <<"a">> => 1}),
-    false = id(#{ <<"a">> => 1 }) < id(#{ "a" => 1}),
-    false = id(#{ 1 => 1 }) < id(#{ 1.0 => 1}),
-    false = id(#{ 1.0 => 1 }) < id(#{ 1 => 1}),
+    true  = #{ a => 1 } < id(#{ b => 1}),
+    false = #{ b => 1 } < id(#{ a => 1}),
+    true  = #{ a => 1, b => 1, c => 1 } < id(#{ b => 1, c => 1, d => 1}),
+    true  = #{ b => 1, c => 1, d => 1 } > id(#{ a => 1, b => 1, c => 1}),
+    true  = #{ c => 1, b => 1, a => 1 } < id(#{ b => 1, c => 1, d => 1}),
+    true  = #{ "a" => 1 } < id(#{ <<"a">> => 1}),
+    false = #{ <<"a">> => 1 } < id(#{ "a" => 1}),
+    true  = #{ 1 => 1 } < id(#{ 1.0 => 1}),
+    false = #{ 1.0 => 1 } < id(#{ 1 => 1}),
 
     %% value order
-    true  = id(#{ a => 1 }) < id(#{ a => 2}),
-    false = id(#{ a => 2 }) < id(#{ a => 1}),
-    false = id(#{ a => 2, b => 1 }) < id(#{ a => 1, b => 3}),
-    true  = id(#{ a => 1, b => 1 }) < id(#{ a => 1, b => 3}),
+    true  = #{ a => 1 } < id(#{ a => 2}),
+    false = #{ a => 2 } < id(#{ a => 1}),
+    false = #{ a => 2, b => 1 } < id(#{ a => 1, b => 3}),
+    true  = #{ a => 1, b => 1 } < id(#{ a => 1, b => 3}),
+    false = #{ a => 1 } < id(#{ a => 1.0}),
+    false = #{ a => 1.0 } < id(#{ a => 1}),
 
-    true  = id(#{ "a" => "hi", b => 134 }) == id(#{ b => 134,"a" => "hi"}),
+    true  = #{ "a" => "hi", b => 134 } == id(#{ b => 134,"a" => "hi"}),
 
     %% lists:sort
 
@@ -34,7 +36,6 @@ test() ->
     [#{1:=ok},#{a:=ok},#{"a":=ok},#{<<"a">>:=ok}] = lists:sort([#{"a"=>ok},#{a=>ok},#{1=>ok},#{<<"a">>=>ok}]),
     [#{1:=3},#{a:=2},#{"a":=1},#{<<"a">>:=4}] = lists:sort(SortVs),
     [#{1:=3},#{a:=2},#{"a":=1},#{<<"a">>:=4}] = lists:sort(lists:reverse(SortVs)),
-
     ok.
 
 %% Use this function to avoid compile-time evaluation of an expression.
diff --git a/lib/hipe/test/maps_SUITE_data/maps_put_map_assoc.erl b/lib/hipe/test/maps_SUITE_data/maps_put_map_assoc.erl
index 72ac9ce078..2fe4f204d1 100644
--- a/lib/hipe/test/maps_SUITE_data/maps_put_map_assoc.erl
+++ b/lib/hipe/test/maps_SUITE_data/maps_put_map_assoc.erl
@@ -8,7 +8,7 @@ test() ->
   true  = assoc_guard(#{}),
   false = assoc_guard(not_a_map),
   #{a := true} = assoc_update(#{}),
-  {'EXIT', {badarg, [{?MODULE, assoc_update, 1, _}|_]}}
+  {'EXIT', {{badmap, not_a_map}, [{?MODULE, assoc_update, 1, _}|_]}}
     = (catch assoc_update(not_a_map)),
   ok = assoc_guard_clause(#{}),
   {'EXIT', {function_clause, [{?MODULE, assoc_guard_clause, _, _}|_]}}
diff --git a/lib/hipe/test/maps_SUITE_data/maps_put_map_exact.erl b/lib/hipe/test/maps_SUITE_data/maps_put_map_exact.erl
index 1cfcd80180..3c85289a36 100644
--- a/lib/hipe/test/maps_SUITE_data/maps_put_map_exact.erl
+++ b/lib/hipe/test/maps_SUITE_data/maps_put_map_exact.erl
@@ -9,9 +9,9 @@ test() ->
   false = exact_guard(not_a_map),
   true  = exact_guard(#{a => false}),
   #{a := true} = exact_update(#{a => false}),
-  {'EXIT', {badarg, [{?MODULE, exact_update, 1, _}|_]}}
+  {'EXIT', {{badmap, not_a_map}, [{?MODULE, exact_update, 1, _}|_]}}
     = (catch exact_update(not_a_map)),
-  {'EXIT', {badarg, [{?MODULE, exact_update, 1, _}|_]}}
+  {'EXIT', {{badkey, a}, [{?MODULE, exact_update, 1, _}|_]}}
     = (catch exact_update(#{})),
   ok = exact_guard_clause(#{a => yes}),
   {'EXIT', {function_clause, [{?MODULE, exact_guard_clause, _, _}|_]}}
diff --git a/lib/hipe/test/maps_SUITE_data/maps_update_assoc.erl b/lib/hipe/test/maps_SUITE_data/maps_update_assoc.erl
index cc7c1353de..99228a1927 100644
--- a/lib/hipe/test/maps_SUITE_data/maps_update_assoc.erl
+++ b/lib/hipe/test/maps_SUITE_data/maps_update_assoc.erl
@@ -14,7 +14,7 @@ test() ->
 
     %% Errors cases.
     BadMap = id(badmap),
-    {'EXIT',{badarg,_}} = (catch BadMap#{nonexisting=>val}),
+    {'EXIT',{{badmap,badmap},_}} = (catch BadMap#{nonexisting=>val}),
 
     ok.
 
diff --git a/lib/hipe/test/maps_SUITE_data/maps_update_exact.erl b/lib/hipe/test/maps_SUITE_data/maps_update_exact.erl
index 6e5acb3283..1c38820a7c 100644
--- a/lib/hipe/test/maps_SUITE_data/maps_update_exact.erl
+++ b/lib/hipe/test/maps_SUITE_data/maps_update_exact.erl
@@ -21,11 +21,11 @@ test() ->
 	1.0 => new_val4 },
 
     %% Errors cases.
-    {'EXIT',{badarg,_}} = (catch ((id(nil))#{ a := b })),
-    {'EXIT',{badarg,_}} = (catch M0#{nonexisting:=val}),
-    {'EXIT',{badarg,_}} = (catch M0#{1.0:=v,1.0=>v2}),
-    {'EXIT',{badarg,_}} = (catch M0#{42.0:=v,42:=v2}),
-    {'EXIT',{badarg,_}} = (catch M0#{42=>v1,42.0:=v2,42:=v3}),
+    {'EXIT',{{badmap,nil},_}} = (catch ((id(nil))#{ a := b })),
+    {'EXIT',{{badkey,nonexisting},_}} = (catch M0#{nonexisting:=val}),
+    {'EXIT',{{badkey,_},_}} = (catch M0#{1.0:=v,1.0=>v2}),
+    {'EXIT',{{badkey,_},_}} = (catch M0#{42.0:=v,42:=v2}),
+    {'EXIT',{{badkey,_},_}} = (catch M0#{42=>v1,42.0:=v2,42:=v3}),
     ok.
 
 %% Use this function to avoid compile-time evaluation of an expression.
diff --git a/lib/hipe/test/maps_SUITE_data/maps_update_map_expressions.erl b/lib/hipe/test/maps_SUITE_data/maps_update_map_expressions.erl
index 181e3f18f7..213fc33d97 100644
--- a/lib/hipe/test/maps_SUITE_data/maps_update_map_expressions.erl
+++ b/lib/hipe/test/maps_SUITE_data/maps_update_map_expressions.erl
@@ -23,9 +23,9 @@ test() ->
 
     #{ "a" := b } = F(),
 
-    %% Error cases, FIXME: should be 'badmap'?
-    {'EXIT',{badarg,_}} = (catch (id(<<>>))#{ a := 42, b => 2 }),
-    {'EXIT',{badarg,_}} = (catch (id([]))#{ a := 42, b => 2 }),
+    %% Error cases.
+    {'EXIT',{{badmap,<<>>},_}} = (catch (id(<<>>))#{ a := 42, b => 2 }),
+    {'EXIT',{{badmap,[]},_}} = (catch (id([]))#{ a := 42, b => 2 }),
     ok.
 
 %% Use this function to avoid compile-time evaluation of an expression.
diff --git a/lib/hipe/tools/hipe_timer.erl b/lib/hipe/tools/hipe_timer.erl
index 03cc358f17..5f44bc066d 100644
--- a/lib/hipe/tools/hipe_timer.erl
+++ b/lib/hipe/tools/hipe_timer.erl
@@ -46,27 +46,27 @@ tr(F) ->
   {R,{WT-EWT,(RT-ERT)/1000}}.
 
 empty_time() ->
-  {WT1,WT2,WT3} = erlang:now(),
+  WTA = erlang:monotonic_time(),
   {A,_} = erlang:statistics(runtime),
-  {WT12,WT22,WT32} = erlang:now(),
+  WTB = erlang:monotonic_time(),
   {B,_} = erlang:statistics(runtime),
-  {(WT12-WT1)*1000000+(WT22-WT2)+(WT32-WT3)/1000000,B-A}.
+  {(WTB-WTA)/erlang:convert_time_unit(1, seconds, native),B-A}.
 
 time(F) -> 
-  {WT1,WT2,WT3} = erlang:now(),
+  WTA = erlang:monotonic_time(),
   {A,_} = erlang:statistics(runtime),
   F(),
-  {WT12,WT22,WT32} = erlang:now(),
+  WTB = erlang:monotonic_time(),
   {B,_} = erlang:statistics(runtime),
-  {(WT12-WT1)*1000000+(WT22-WT2)+(WT32-WT3)/1000000,B-A}.
+  {(WTB-WTA)/erlang:convert_time_unit(1, seconds, native),B-A}.
 
 timer(F) -> 
-  {WT1,WT2,WT3} = erlang:now(),
+  WTA = erlang:monotonic_time(),
   {A,_} = erlang:statistics(runtime),
   R = F(),
-  {WT12,WT22,WT32} = erlang:now(),
+  WTB = erlang:monotonic_time(),
   {B,_} = erlang:statistics(runtime),
-  {R,{(WT12-WT1)*1000000+(WT22-WT2)+(WT32-WT3)/1000000,B-A}}.
+  {R,{(WTB-WTA)/erlang:convert_time_unit(1, seconds, native),B-A}}.
 
 advanced(_Fun, I) when I < 2 -> false;
 advanced(Fun, Iterations) ->
diff --git a/lib/hipe/vsn.mk b/lib/hipe/vsn.mk
index 60b4e0559b..e507ae933f 100644
--- a/lib/hipe/vsn.mk
+++ b/lib/hipe/vsn.mk
@@ -1 +1 @@
-HIPE_VSN = 3.11.3
+HIPE_VSN = 3.12
diff --git a/lib/ic/test/java_client_erl_server_SUITE.erl b/lib/ic/test/java_client_erl_server_SUITE.erl
index cbcf32515e..6ac08fd0fe 100644
--- a/lib/ic/test/java_client_erl_server_SUITE.erl
+++ b/lib/ic/test/java_client_erl_server_SUITE.erl
@@ -280,11 +280,7 @@ classpath(Dir) ->
     Dir++PS++
 	filename:join([code:lib_dir(ic),"priv","ic.jar"])++PS++
 	filename:join([code:lib_dir(jinterface),"priv","OtpErlang.jar"])++PS++
-	case os:getenv("CLASSPATH") of
-	    false -> "";
-	    Classpath -> Classpath
-	end.
-
+	os:getenv("CLASSPATH", "").
 
 cmd(Cmd) ->
     PortOpts = [{line,80},eof,exit_status,stderr_to_stdout],
diff --git a/lib/inets/doc/src/http_server.xml b/lib/inets/doc/src/http_server.xml
index e3b763b4f3..65e89db391 100644
--- a/lib/inets/doc/src/http_server.xml
+++ b/lib/inets/doc/src/http_server.xml
@@ -46,8 +46,7 @@
       Layer), ESI (Erlang Scripting Interface), CGI (Common Gateway
       Interface), User Authentication(using Mnesia, dets or plain text
       database), Common Logfile Format (with or without disk_log(3)
-      support), URL Aliasing, Action Mappings, Directory Listings and SSI
-      (Server-Side Includes).</p>
+      support), URL Aliasing, Action Mappings, and Directory Listings</p>
 
     <p>The configuration of the server is provided as an erlang
       property list, and for backwards compatibility also a configuration
@@ -478,170 +477,9 @@ http://your.server.org/eval?httpd_example:print(atom_to_list(apply(erlang,halt,[
         </p>
       <p><em>[date]</em> access to <em>path</em> failed for
         <em>remotehost</em>, reason: <em>reason</em></p>
-
-    <marker id="ssi"></marker>
   </section>
-
+  
   <section>
-      <title>Server Side Includes</title>
-    <p>Server Side Includes enables the server to run code embedded
-        in HTML pages to generate the response to the client.</p>
-      <note>
-        <p>Having the server parse HTML pages is a double edged sword!
-          It can be costly for a heavily loaded server to perform
-          parsing of HTML pages while sending them. Furthermore, it can
-          be considered a security risk to have average users executing 
-          commands in the name of the  Erlang node user. Carefully
-          consider these items before activating server-side includes.</p>
-      </note>
-
-      <section>
-        <marker id="ssi_setup"></marker>
-        <title>SERVER-SIDE INCLUDES (SSI) SETUP</title>
-        <p>The server must be told which filename extensions to be used
-          for the parsed files. These files, while very similar to HTML,
-          are not HTML and are thus not treated the same. Internally, the
-          server uses the magic MIME type <c>text/x-server-parsed-html</c>
-          to identify parsed documents. It will then perform a format
-          conversion to change these files into HTML for the
-          client. Update the <c>mime.types</c> file, as described in the
-          Mime Type Settings, to tell the server which extension to use
-          for parsed files, for example:
-          </p>
-        <pre>
-	text/x-server-parsed-html shtml shtm
-        </pre>
-        <p>This makes files ending with <c>.shtml</c> and <c>.shtm</c>
-          into parsed files. Alternatively, if the performance hit is not a
-          problem, <em>all</em> HTML pages can be marked as parsed:
-          </p>
-        <pre>
-	text/x-server-parsed-html html htm
-        </pre>
-      </section>
-
-      <section>
-        <marker id="ssi_format"></marker>
-        <title>Server-Side Includes (SSI) Format</title>
-        <p>All server-side include directives to the server are formatted
-          as SGML comments within the HTML page. This is in case the
-          document should ever  find itself in the client's hands
-          unparsed. Each directive has the following format:
-          </p>
-        <pre>
-	&lt;!--#command tag1="value1" tag2="value2" --&gt;
-        </pre>
-        <p>Each command takes different arguments, most only accept one
-          tag at a time. Here is a breakdown of the commands and their
-          associated tags:
-          </p>
-        <p>The config directive controls various aspects of the
-          file parsing. There are two valid tags:
-          </p>
-        <taglist>
-          <tag><c>errmsg</c></tag>
-          <item>
-            <p>controls the message sent back to the client if an
-              error occurred while parsing the document. All errors are
-              logged in the server's error log.</p>
-          </item>
-          <tag><c>sizefmt</c></tag>
-          <item>
-            <p>determines the format used to  display the size of
-              a file. Valid choices are <c>bytes</c> or
-              <c>abbrev</c>. <c>bytes</c> for a formatted byte count
-              or <c>abbrev</c> for an abbreviated version displaying
-              the number of kilobytes.</p>
-          </item>
-        </taglist>
-        <p>The include directory 
-          will insert the text of a document into the parsed
-          document. This command accepts two tags:</p>
-        <taglist>
-          <tag><c>virtual</c></tag>
-          <item>
-            <p>gives a virtual path to a document on the
-              server. Only normal files and other parsed documents can
-              be accessed in this way.</p>
-          </item>
-          <tag><c>file</c></tag>
-          <item>
-            <p>gives a pathname relative to the current
-              directory. <c>../</c> cannot be used in this pathname, nor
-              can absolute paths. As above, you can send other parsed
-              documents, but you cannot send CGI scripts.</p>
-          </item>
-        </taglist>
-        <p>The echo directive prints the value of one of the include
-          variables (defined below). The only valid tag to this
-          command is <c>var</c>, whose value is the name of the
-          variable you wish to echo.</p>
-        <p>The fsize directive prints the size of the specified
-          file. Valid tags are the same as with the <c>include</c>
-          command. The resulting format of this command is subject
-          to the <c>sizefmt</c> parameter to the <c>config</c>
-          command.</p>
-        <p>The lastmod directive prints the last modification date of
-          the specified file. Valid tags are the same as with the
-          <c>include</c> command.</p>
-        <p>The exec directive executes a given shell command or CGI
-          script. Valid tags are:</p>
-        <taglist>
-          <tag><c>cmd</c></tag>
-          <item>
-            <p>executes the given string using <c>/bin/sh</c>. All
-              of the variables defined below are defined, and can be
-              used in the command.</p>
-          </item>
-          <tag><c>cgi</c></tag>
-          <item>
-            <p>executes the given virtual path to a CGI script and
-              includes its output. The server does not perform error
-              checking on the script output.</p>
-          </item>
-        </taglist>
-      </section>
-
-      <section>
-        <marker id="ssi_environment_variables"></marker>
-        <title>Server-Side Includes (SSI) Environment Variables</title>
-        <p>A number of variables are made available to parsed
-          documents. In addition to the CGI variable set, the following
-          variables are made available: 
-          </p>
-        <taglist>
-          <tag><c>DOCUMENT_NAME</c></tag>
-          <item>
-            <p>The current filename.</p>
-          </item>
-          <tag><c>DOCUMENT_URI</c></tag>
-          <item>
-            <p>The virtual path to this document (such as
-              <c>/docs/tutorials/foo.shtml</c>).</p>
-          </item>
-          <tag><c>QUERY_STRING_UNESCAPED</c></tag>
-          <item>
-            <p>The unescaped version of any search query the client
-              sent, with all shell-special characters escaped with
-              <c>\</c>.</p>
-          </item>
-          <tag><c>DATE_LOCAL</c></tag>
-          <item>
-            <p>The current date, local time zone.</p>
-          </item>
-          <tag><c>DATE_GMT</c></tag>
-          <item>
-            <p>Same as DATE_LOCAL but in Greenwich mean time.</p>
-          </item>
-          <tag><c>LAST_MODIFIED</c></tag>
-          <item>
-            <p>The last modification date of the current document.</p>
-          </item>
-        </taglist>
-      </section>
-    </section>
-
-    <section>
       <title>The Erlang Web Server API</title>
       <p>The process of handling a HTTP request involves several steps
         such as:</p>
@@ -907,28 +745,6 @@ start() ->
         </taglist>
     </section>
     
-      <section>
-      <title>mod_include - SSI</title>
-      <p>This module makes it possible to expand "macros" embedded in
-	HTML pages before they are delivered to the client, that is
-	Server-Side Includes (SSI).
-          </p>
-      <p>Uses the following Erlang Webserver API interaction data:
-      </p>
-        <list type="bulleted">
-	<item>real_name - from mod_alias</item>
-	<item>remote_user - from mod_auth</item>
-      </list>
-        <p>Exports the following Erlang Webserver API interaction data:
-      </p>
-      <taglist>
-	<tag><c>{mime_type, MimeType}</c></tag>
-	<item>The file suffix of the incoming URL mapped into a
-          <c>MimeType</c> as defined in the Mime Type Settings
-	  section.</item>
-      </taglist>
-    </section>
-
     <section>
       <title>mod_log - Logging Using Text Files.</title>
       <p>Standard logging using the "Common Logfile Format" and text
diff --git a/lib/inets/doc/src/httpc.xml b/lib/inets/doc/src/httpc.xml
index 4178cb7d4c..6984408932 100644
--- a/lib/inets/doc/src/httpc.xml
+++ b/lib/inets/doc/src/httpc.xml
@@ -366,7 +366,7 @@ filename()       = string()
           <tag><c><![CDATA[receiver]]></c></tag>
           <item>
             <p>Defines how the client will deliver the result of an
-	    asynchroneous request (<c>sync</c> has the value 
+	    asynchronous request (<c>sync</c> has the value
 	    <c>false</c>). </p>
 
             <taglist>
diff --git a/lib/inets/doc/src/httpd.xml b/lib/inets/doc/src/httpd.xml
index 435f99ee23..e6aa8d5e07 100644
--- a/lib/inets/doc/src/httpd.xml
+++ b/lib/inets/doc/src/httpd.xml
@@ -162,6 +162,20 @@
 	in the apache like configuration file. </p>
       </item>
 
+      <marker id="profile"></marker>
+      <tag>{profile, atom()}</tag>
+      <item>
+        <p>Used together with <seealso marker="prop_bind_address"><c>bind_address</c></seealso>
+	and <seealso marker="prop_port"><c>port</c></seealso> to uniquely identify
+	a HTTP server. This can be useful in a virtualized environment,
+	where there can
+	be more that one server that has the same bind_address and port.
+	If this property is not explicitly set, it is assumed that the
+	<seealso marker="prop_bind_address"><c>bind_address</c></seealso> and
+	<seealso marker="prop_port"><c>port</c></seealso>uniquely identifies the HTTP server.
+	</p>
+      </item>
+
       <marker id="prop_socket_type"></marker>
       <tag>{socket_type, ip_comm | {essl, Config::proplist()}}</tag>
       <item>
@@ -176,6 +190,8 @@
         <p>Note that this option is only used when the option 
 	<c>socket_type</c> has the value <c>ip_comm</c>. </p>
       </item>
+
+      
       <marker id="prop_minimum_bytes_per_second"></marker>
       <tag>{minimum_bytes_per_second, integer()}</tag>
       <item>
@@ -935,19 +951,22 @@ bytes
     <func>
       <marker id="info2"></marker>
       <name>info(Address, Port) ->  </name>
+      <name>info(Address, Port, Profile) ->  </name>
+      <name>info(Address, Port, Profile, Properties) -> [{Option, Value}] </name>
       <name>info(Address, Port, Properties) -> [{Option, Value}] </name>
       <fsummary>Fetches information about the HTTP server</fsummary>
       <type>
 	<v>Address = ip_address()</v>
 	<v>Port = integer()</v>
+	<v>Profile = atom()</v>
 	<v>Properties = [property()]</v>
         <v>Option = property()</v>
 	<v>Value = term()</v>
       </type>
       <desc>
         <p>Fetches information about the HTTP server. When called with
-	only the Address and Port all properties are fetched, when
-	called with a list of specific properties they are fetched.
+	only the Address, Port and Profile, if relevant, all properties are fetched.
+	When called with a list of specific properties they are fetched.
 	Available properties are the same as the server's start
 	options.
 	</p>
diff --git a/lib/inets/examples/httpd_load_test/hdlt_random_html.erl b/lib/inets/examples/httpd_load_test/hdlt_random_html.erl
index e3a572c61f..59073a3d23 100644
--- a/lib/inets/examples/httpd_load_test/hdlt_random_html.erl
+++ b/lib/inets/examples/httpd_load_test/hdlt_random_html.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2010. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -48,7 +48,10 @@ stop() ->
 ". 
  
 content(WorkSim, SzSim) ->  
-    {A, B, C} = now(),  
+    {A, B, C} = {erlang:phash2([node()]),
+                 inets_time_compat:monotonic_time(),
+                 inets_time_compat:unique_integer()},
+
     random:seed(A, B, C),  
     lists:sort([random:uniform(X) || X <- lists:seq(1, WorkSim)]),  
     lists:flatten(lists:duplicate(SzSim, "Dummy data ")). 
diff --git a/lib/inets/src/ftp/ftp.erl b/lib/inets/src/ftp/ftp.erl
index 8e51b1be5a..7eebe8d5bf 100644
--- a/lib/inets/src/ftp/ftp.erl
+++ b/lib/inets/src/ftp/ftp.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1997-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -2176,16 +2176,16 @@ handle_caller(#state{caller = {transfer_data, {Cmd, Bin, RemoteFile}}} =
 %% Connect to FTP server at Host (default is TCP port 21) 
 %% in order to establish a control connection.
 setup_ctrl_connection(Host, Port, Timeout, State) ->
-    MsTime = millisec_time(),
+    MsTime = inets_time_compat:monotonic_time(),
     case connect(Host, Port, Timeout, State) of
 	{ok, IpFam, CSock} ->
 	    NewState = State#state{csock = {tcp, CSock}, ipfamily = IpFam},
 	    activate_ctrl_connection(NewState),
-	    case Timeout - (millisec_time() - MsTime) of
+	    case Timeout - inets_lib:millisec_passed(MsTime) of
 		Timeout2 when (Timeout2 >= 0) ->
 		    {ok, NewState#state{caller = open}, Timeout2};
 		_ ->
-		    %% Oups: Simulate timeout
+                    %% Oups: Simulate timeout
 		    {ok, NewState#state{caller = open}, 0}
 	    end;
 	Error ->
@@ -2501,10 +2501,6 @@ progress_report(Report,  #state{progress = ProgressPid}) ->
     ftp_progress:report(ProgressPid, Report).
 
 
-millisec_time() ->
-    {A,B,C} = erlang:now(),
-    A*1000000000+B*1000+(C div 1000).
-
 peername({tcp, Socket}) -> inet:peername(Socket);
 peername({ssl, Socket}) -> ssl:peername(Socket).
 
diff --git a/lib/inets/src/http_client/httpc_handler.erl b/lib/inets/src/http_client/httpc_handler.erl
index 0bbd40d656..9d832ef18b 100644
--- a/lib/inets/src/http_client/httpc_handler.erl
+++ b/lib/inets/src/http_client/httpc_handler.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2002-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2002-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -87,7 +87,7 @@
 %% block the httpc manager process in odd cases such as trying to call
 %% a server that does not exist. (See OTP-6735) The only API function
 %% sending messages to the handler process that can be called before
-%% init has compleated is cancel and that is not a problem! (Send and
+%% init has completed is cancel and that is not a problem! (Send and
 %% stream will not be called before the first request has been sent and
 %% the reply or part of it has arrived.)
 %%--------------------------------------------------------------------
@@ -316,8 +316,9 @@ handle_call(#request{address = Addr} = Request, _,
                     {reply, ok, State}
             end;
         {error, Reason} ->
-            ?hcri("failed sending request", [{reason, Reason}]),
-            {reply, {pipeline_failed, Reason}, State0}
+		    ?hcri("failed sending request", [{reason, Reason}]),
+            NewPipeline = queue:in(Request, State0#state.pipeline),
+            {stop, shutdown, {pipeline_failed, Reason}, State0#state{pipeline = NewPipeline}}
     end;
 
 handle_call(#request{address = Addr} = Request, _, 
@@ -355,25 +356,25 @@ handle_call(#request{address = Addr} = Request, _,
 	    ?hcrd("no current request", []),
 	    cancel_timer(Timers#timers.queue_timer,
 			 timeout_queue),
+	    NewTimers = Timers#timers{queue_timer = undefined},
+	    State1 = State0#state{timers = NewTimers},
 	    Address = handle_proxy(Addr, Proxy),
 	    case httpc_request:send(Address, Session, Request) of
 		ok ->
 		    ?hcrd("request sent", []),
 
 		    %% Activate the request time out for the new request
-		    State1 =
-			activate_request_timeout(State0#state{request = Request}),
-		    NewTimers = State1#state.timers,
+		    State2 =
+			activate_request_timeout(State1#state{request = Request}),
 		    NewSession =
 			Session#session{queue_length = 1,
 					client_close = ClientClose},
 		    insert_session(NewSession, ProfileName),
-		    State = init_wait_for_response_state(Request, State1#state{session = NewSession,
-								      timers = NewTimers}),
+		    State = init_wait_for_response_state(Request, State2#state{session = NewSession}),
 		    {reply, ok, State};
 		{error, Reason} ->
 		    ?hcri("failed sending request", [{reason, Reason}]),
-		    {reply, {request_failed, Reason}, State0}
+		    {stop, shutdown, {keepalive_failed, Reason}, State1}
 	    end
     end;
 
@@ -391,7 +392,7 @@ handle_call(info, _, State) ->
 %% When the request in process has been canceled the handler process is
 %% stopped and the pipelined requests will be reissued or remaining
 %% requests will be sent on a new connection. This is is
-%% based on the assumption that it is proably cheaper to reissue the
+%% based on the assumption that it is probably cheaper to reissue the
 %% requests than to wait for a potentiall large response that we then
 %% only throw away. This of course is not always true maybe we could
 %% do something smarter here?! If the request canceled is not
@@ -1121,7 +1122,7 @@ handle_http_body(Body, #state{headers       = Headers,
                            handle_response(State#state{headers = NewHeaders,
                                                 body    = NewBody});
                         _ ->
-                           {NewBody2, NewRequest} =
+                           {NewBody2, _NewRequest} =
                                 stream(NewBody, Request, Code),
                            handle_response(State#state{headers = NewHeaders,
                                        body    = NewBody2})
@@ -1329,7 +1330,7 @@ handle_keep_alive_queue(#state{status       = keep_alive,
 					     Session, <<>>,
 					     State#state{keep_alive = KeepAlive});
 			{error, Reason} ->
-			    {reply, {keep_alive_failed, Reason}, State}
+			    {stop, {shutdown, {keepalive_failed, Reason}}, State}
 		    end
 	    end
     end.
@@ -1344,7 +1345,7 @@ handle_empty_queue(Session, ProfileName, TimeOut, State) ->
     %% closed by the server, the client may want to close it.
     NewState = activate_queue_timeout(TimeOut, State),
     update_session(ProfileName, Session, #session.queue_length, 0),
-    %% Note mfa will be initilized when a new request
+    %% Note mfa will be initialized when a new request
     %% arrives.
     {noreply,
      NewState#state{request     = undefined,
@@ -1850,6 +1851,7 @@ update_session(ProfileName, #session{id = SessionId} = Session, Pos, Value) ->
 	    Session2 = erlang:setelement(Pos, Session, Value),
 	    insert_session(Session2, ProfileName);
 	  T:E ->
+            Stacktrace = erlang:get_stacktrace(),
             error_logger:error_msg("Failed updating session: "
                                    "~n   ProfileName: ~p"
                                    "~n   SessionId:   ~p"
@@ -1873,7 +1875,7 @@ update_session(ProfileName, #session{id = SessionId} = Session, Pos, Value) ->
                    {value,      Value}, 
                    {etype,      T}, 
                    {error,      E}, 
-                   {stacktrace, erlang:get_stacktrace()}]})	    
+                   {stacktrace, Stacktrace}]})
     end.
 
 
diff --git a/lib/inets/src/http_server/Makefile b/lib/inets/src/http_server/Makefile
index 636d580e28..00bad51ff9 100644
--- a/lib/inets/src/http_server/Makefile
+++ b/lib/inets/src/http_server/Makefile
@@ -76,7 +76,6 @@ MODULES = \
 	mod_get \
 	mod_head \
 	mod_htaccess \
-	mod_include \
 	mod_log \
 	mod_range \
 	mod_responsecontrol \
diff --git a/lib/inets/src/http_server/httpd.erl b/lib/inets/src/http_server/httpd.erl
index e8148ea362..71be6dde00 100644
--- a/lib/inets/src/http_server/httpd.erl
+++ b/lib/inets/src/http_server/httpd.erl
@@ -23,6 +23,7 @@
 -behaviour(inets_service).
 
 -include("httpd.hrl").
+-include("httpd_internal.hrl").
 
 %% Behavior callbacks
 -export([
@@ -61,18 +62,27 @@ info(Pid, Properties) when is_pid(Pid) andalso is_list(Properties) ->
     {ok, ServiceInfo} = service_info(Pid), 
     Address = proplists:get_value(bind_address, ServiceInfo),
     Port = proplists:get_value(port, ServiceInfo),
+    Profile = proplists:get_value(profile, ServiceInfo, default),
     case Properties of
 	[] ->
-	    info(Address, Port);
+	    info(Address, Port, Profile);
 	_ ->
-	    info(Address, Port, Properties)
+	    info(Address, Port, Profile, Properties)
     end; 
+
 info(Address, Port) when is_integer(Port) ->    
-    httpd_conf:get_config(Address, Port).
+    info(Address, Port, default).
+
+info(Address, Port, Profile) when is_integer(Port), is_atom(Profile) ->    
+    httpd_conf:get_config(Address, Port, Profile);
 
 info(Address, Port, Properties) when is_integer(Port) andalso 
 				     is_list(Properties) ->    
-    httpd_conf:get_config(Address, Port, Properties).
+    httpd_conf:get_config(Address, Port, default, Properties).
+
+info(Address, Port, Profile, Properties) when is_integer(Port) andalso 
+					      is_atom(Profile) andalso is_list(Properties) ->    
+    httpd_conf:get_config(Address, Port, Profile, Properties).
 
 
 %%%========================================================================
@@ -86,14 +96,16 @@ start_service(Conf) ->
     httpd_sup:start_child(Conf).
 
 stop_service({Address, Port}) ->
-    httpd_sup:stop_child(Address, Port);
-
+    stop_service({Address, Port, ?DEFAULT_PROFILE});
+stop_service({Address, Port, Profile}) ->
+     httpd_sup:stop_child(Address, Port, Profile);
 stop_service(Pid) when is_pid(Pid) ->
     case service_info(Pid)  of
 	{ok, Info} ->	   
 	    Address = proplists:get_value(bind_address, Info),
 	    Port = proplists:get_value(port, Info),
-	    stop_service({Address, Port});
+	    Profile = proplists:get_value(profile, Info, ?DEFAULT_PROFILE),
+	    stop_service({Address, Port, Profile});
 	Error ->
 	    Error
     end.
@@ -101,7 +113,6 @@ stop_service(Pid) when is_pid(Pid) ->
 services() ->
     [{httpd, ChildPid} || {_, ChildPid, _, _} <- 
 			      supervisor:which_children(httpd_sup)].
-
 service_info(Pid) ->
     try
 	[{ChildName, ChildPid} || 
@@ -114,7 +125,6 @@ service_info(Pid) ->
 	    {error, service_not_available} 
     end.
 
-
 %%%--------------------------------------------------------------
 %%% Internal functions
 %%%--------------------------------------------------------------------
@@ -128,12 +138,12 @@ child_name(Pid, [_ | Children]) ->
 
 child_name2info(undefined) ->
     {error, no_such_service};
-child_name2info({httpd_instance_sup, any, Port}) ->
+child_name2info({httpd_instance_sup, any, Port, Profile}) ->
     {ok, Host} = inet:gethostname(),
-    Info = info(any, Port, [server_name]),
+    Info = info(any, Port, Profile, [server_name]),
     {ok, [{bind_address,  any}, {host, Host}, {port, Port} | Info]};
-child_name2info({httpd_instance_sup, Address, Port}) ->
-    Info = info(Address, Port, [server_name]),
+child_name2info({httpd_instance_sup, Address, Port, Profile}) ->
+    Info = info(Address, Port, Profile, [server_name]),
     case inet:gethostbyaddr(Address) of
 	{ok, {_, Host, _, _,_, _}} ->
 	    {ok, [{bind_address, Address}, 
@@ -143,8 +153,8 @@ child_name2info({httpd_instance_sup, Address, Port}) ->
     end.
 
 
-reload(Config, Address, Port) ->
-    Name = make_name(Address,Port),
+reload(Config, Address, Port, Profile) ->
+    Name = make_name(Address,Port, Profile),
     case whereis(Name) of
 	Pid when is_pid(Pid) ->
 	    httpd_manager:reload(Pid, Config);
@@ -191,51 +201,19 @@ reload(Config, Address, Port) ->
 %%%              Timeout    -> integer()
 %%%
 
-block(Addr, Port, disturbing) when is_integer(Port) ->
-    do_block(Addr, Port, disturbing);
-block(Addr, Port, non_disturbing) when is_integer(Port) ->
-    do_block(Addr, Port, non_disturbing);
-
-block(ConfigFile, Mode, Timeout) 
-  when is_list(ConfigFile) andalso 
-       is_atom(Mode) andalso 
-       is_integer(Timeout) ->
-    case get_addr_and_port(ConfigFile) of
-	{ok, Addr, Port} ->
-	    block(Addr, Port, Mode, Timeout);
-	Error ->
-	    Error
-    end.
-
-
-block(Addr, Port, non_disturbing, Timeout) 
-  when is_integer(Port) andalso is_integer(Timeout) ->
-    do_block(Addr, Port, non_disturbing, Timeout);
-block(Addr,Port,disturbing,Timeout) 
-  when is_integer(Port) andalso is_integer(Timeout) ->
-    do_block(Addr, Port, disturbing, Timeout).
-
-do_block(Addr, Port, Mode) when is_integer(Port) andalso is_atom(Mode) -> 
-    Name = make_name(Addr,Port),
+block(Addr, Port, Profile, disturbing) when is_integer(Port) ->
+    do_block(Addr, Port, Profile, disturbing);
+block(Addr, Port, Profile, non_disturbing) when is_integer(Port) ->
+    do_block(Addr, Port, Profile, non_disturbing).
+do_block(Addr, Port, Profile, Mode) when is_integer(Port) andalso is_atom(Mode) -> 
+    Name = make_name(Addr, Port, Profile),
     case whereis(Name) of
 	Pid when is_pid(Pid) ->
-	    httpd_manager:block(Pid,Mode);
+	    httpd_manager:block(Pid, Mode);
 	_ ->
 	    {error,not_started}
     end.
     
-
-do_block(Addr, Port, Mode, Timeout) 
-  when is_integer(Port) andalso is_atom(Mode) -> 
-    Name = make_name(Addr,Port),
-    case whereis(Name) of
-	Pid when is_pid(Pid) ->
-	    httpd_manager:block(Pid,Mode,Timeout);
-	_ ->
-	    {error,not_started}
-    end.
-    
-
 %%% =========================================================
 %%% Function:    unblock/2
 %%%              unblock(Addr, Port)
@@ -248,8 +226,8 @@ do_block(Addr, Port, Mode, Timeout)
 %%%              ConfigFile -> string()
 %%%
 
-unblock(Addr, Port) when is_integer(Port) -> 
-    Name = make_name(Addr,Port),
+unblock(Addr, Port, Profile) when is_integer(Port) -> 
+    Name = make_name(Addr,Port, Profile),
     case whereis(Name) of
 	Pid when is_pid(Pid) ->
 	    httpd_manager:unblock(Pid);
@@ -269,24 +247,9 @@ foreach([KeyValue|Rest]) ->
       foreach(Rest)
   end.
 
-get_addr_and_port(ConfigFile) ->
-    case httpd_conf:load(ConfigFile) of
-	{ok, ConfigList} ->
-	    case (catch httpd_conf:validate_properties(ConfigList)) of
-		{ok, Config} ->
-		    Address = proplists:get_value(bind_address, Config, any), 
-		    Port    = proplists:get_value(port, Config, 80),
-		    {ok, Address, Port};
-		Error ->
-		    Error
-	    end;
-	Error ->
-	    Error
-    end.
-
 
-make_name(Addr, Port) ->
-    httpd_util:make_name("httpd", Addr, Port).
+make_name(Addr, Port, Profile) ->
+    httpd_util:make_name("httpd", Addr, Port, Profile).
 
 
 do_reload_config(ConfigList, Mode) ->
@@ -294,10 +257,11 @@ do_reload_config(ConfigList, Mode) ->
 	{ok, Config} ->
 	    Address = proplists:get_value(bind_address, Config, any), 
 	    Port    = proplists:get_value(port, Config, 80),
-	    case block(Address, Port, Mode) of
+	    Profile = proplists:get_value(profile, Config, default),
+	    case block(Address, Port, Profile, Mode) of
 		ok ->
-		    reload(Config, Address, Port),
-		    unblock(Address, Port);
+		    reload(Config, Address, Port, Profile),
+		    unblock(Address, Port, Profile);
 		Error ->
 		    Error
 	    end;
diff --git a/lib/inets/src/http_server/httpd_acceptor_sup.erl b/lib/inets/src/http_server/httpd_acceptor_sup.erl
index cc2b582b52..a6a0fe2eea 100644
--- a/lib/inets/src/http_server/httpd_acceptor_sup.erl
+++ b/lib/inets/src/http_server/httpd_acceptor_sup.erl
@@ -26,6 +26,8 @@
 
 -behaviour(supervisor).
 
+-include("httpd_internal.hrl").
+
 %% API
 -export([start_link/1]).
 %%, start_acceptor/6, start_acceptor/7, stop_acceptor/2]).
@@ -36,8 +38,9 @@
 %%%=========================================================================
 %%%  API
 %%%=========================================================================
-start_link([Addr, Port| _] = Args) ->
-    SupName = make_name(Addr, Port),
+start_link([Addr, Port, Config| _] = Args) ->
+    Profile = proplists:get_value(profile, Config, ?DEFAULT_PROFILE),
+    SupName = make_name(Addr, Port, Profile),
     supervisor:start_link({local, SupName}, ?MODULE, [Args]).
 
 %%%=========================================================================
@@ -54,20 +57,23 @@ init([Args]) ->
 %%%  Internal functions
 %%%=========================================================================  
 child_spec([Address, Port, ConfigList, AcceptTimeout, ListenInfo]) ->
-    Name = id(Address, Port),
-    Manager = httpd_util:make_name("httpd", Address, Port),
+    Profile = proplists:get_value(profile, ConfigList, ?DEFAULT_PROFILE),
+    Name = id(Address, Port, Profile),
+    Manager = httpd_util:make_name("httpd", Address, Port, Profile),
     SockType = proplists:get_value(socket_type, ConfigList, ip_comm),
     IpFamily = proplists:get_value(ipfamily, ConfigList, inet),
     StartFunc = case ListenInfo of
 		    undefined ->
-			{httpd_acceptor, start_link, [Manager, SockType, Address, Port, IpFamily,
-						      httpd_util:make_name("httpd_conf", Address, Port), 
-						      AcceptTimeout]};
+			{httpd_acceptor, start_link, 
+			 [Manager, SockType, Address, Port, IpFamily,
+			  httpd_util:make_name("httpd_conf", Address, Port, Profile), 
+			  AcceptTimeout]};
 		    _ ->
-			{httpd_acceptor, start_link, [Manager, SockType, Address, Port, ListenInfo,
-						      IpFamily,
-						      httpd_util:make_name("httpd_conf", Address, Port), 
-						      AcceptTimeout]}
+			{httpd_acceptor, start_link, 
+			 [Manager, SockType, Address, Port, ListenInfo,
+			  IpFamily,
+			  httpd_util:make_name("httpd_conf", Address, Port, Profile), 
+			  AcceptTimeout]}
 		end,
     Restart = transient, 
     Shutdown = brutal_kill,
@@ -75,9 +81,9 @@ child_spec([Address, Port, ConfigList, AcceptTimeout, ListenInfo]) ->
     Type = worker,
     {Name, StartFunc, Restart, Shutdown, Type, Modules}.
 
-id(Address, Port) ->
-    {httpd_acceptor_sup, Address, Port}.
+id(Address, Port, Profile) ->
+    {httpd_acceptor_sup, Address, Port, Profile}.
 
-make_name(Addr,Port) ->
-    httpd_util:make_name("httpd_acceptor_sup", Addr, Port).
+make_name(Addr, Port, Profile) ->
+    httpd_util:make_name("httpd_acceptor_sup", Addr, Port, Profile).
 
diff --git a/lib/inets/src/http_server/httpd_conf.erl b/lib/inets/src/http_server/httpd_conf.erl
index dbdc1be272..9c70f8d1b8 100644
--- a/lib/inets/src/http_server/httpd_conf.erl
+++ b/lib/inets/src/http_server/httpd_conf.erl
@@ -25,7 +25,7 @@
 
 %% Application internal API
 -export([load/1, load/2, load_mime_types/1, store/1, store/2,
-	 remove/1, remove_all/1, get_config/2, get_config/3,
+	 remove/1, remove_all/1, get_config/3, get_config/4,
 	 lookup_socket_type/1, 
 	 lookup/2, lookup/3, lookup/4, 
 	 validate_properties/1]).
@@ -757,8 +757,9 @@ store(ConfigList0) ->
 	    ?hdrt("store", [{modules, Modules}]),
 	    Port = proplists:get_value(port, ConfigList0),
 	    Addr = proplists:get_value(bind_address, ConfigList0, any),
+	    Profile = proplists:get_value(profile, ConfigList0, default),
 	    ConfigList = fix_mime_types(ConfigList0),
-	    Name = httpd_util:make_name("httpd_conf", Addr, Port),
+	    Name = httpd_util:make_name("httpd_conf", Addr, Port, Profile),
 	    ConfigDB = ets:new(Name, [named_table, bag, protected]),
 	    store(ConfigDB, ConfigList, 
 		  lists:append(Modules, [?MODULE]), 
@@ -785,8 +786,15 @@ fix_mime_types(ConfigList0) ->
 			  [{"html","text/html"},{"htm","text/html"}]} 
 			 | ConfigList0]
 		end;
-	_ ->
-	    ConfigList0
+    MimeTypes ->
+        case filelib:is_file(MimeTypes) of
+            true ->
+                {ok, MimeTypesList} = load_mime_types(MimeTypes),
+                ConfigList = proplists:delete(mime_types, ConfigList0),
+                [{mime_types, MimeTypesList} | ConfigList];
+            false ->
+                ConfigList0
+        end
     end.
 
 store({mime_types,MimeTypesList},ConfigList) ->
@@ -902,15 +910,15 @@ remove(ConfigDB) ->
 %%     end.
 
 
-get_config(Address, Port) ->    
-    Tab = httpd_util:make_name("httpd_conf", Address, Port),
+get_config(Address, Port, Profile) ->    
+    Tab = httpd_util:make_name("httpd_conf", Address, Port, Profile),
     Properties =  ets:tab2list(Tab),
     MimeTab = proplists:get_value(mime_types, Properties),
     NewProperties = proplists:delete(mime_types, Properties),
     [{mime_types, ets:tab2list(MimeTab)} | NewProperties].
      
-get_config(Address, Port, Properties) ->    
-    Tab = httpd_util:make_name("httpd_conf", Address, Port),
+get_config(Address, Port, Profile, Properties) ->    
+    Tab = httpd_util:make_name("httpd_conf", Address, Port, Profile),
     Config = 
 	lists:map(fun(Prop) -> {Prop, httpd_util:lookup(Tab, Prop)} end,
 		  Properties),
diff --git a/lib/inets/src/http_server/httpd_instance_sup.erl b/lib/inets/src/http_server/httpd_instance_sup.erl
index b95be44b2a..90800f2724 100644
--- a/lib/inets/src/http_server/httpd_instance_sup.erl
+++ b/lib/inets/src/http_server/httpd_instance_sup.erl
@@ -27,6 +27,8 @@
 
 -behaviour(supervisor).
 
+-include("httpd_internal.hrl").
+
 %% Internal application API
 -export([start_link/3, start_link/4]).
 
@@ -41,7 +43,8 @@ start_link([{_, _}| _] = Config, AcceptTimeout, Debug)  ->
 	{ok, Config2} ->
 	    Address = proplists:get_value(bind_address, Config2),
 	    Port    = proplists:get_value(port, Config2), 
-	    Name = make_name(Address, Port),
+	    Profile = proplists:get_value(profile, Config2, ?DEFAULT_PROFILE), 
+	    Name = make_name(Address, Port, Profile),
 	    SupName = {local, Name},
 	    supervisor:start_link(SupName, ?MODULE, 
 				  [undefined, Config2, AcceptTimeout,
@@ -54,7 +57,8 @@ start_link([{_, _}| _] = Config, AcceptTimeout, Debug)  ->
 start_link(ConfigFile, AcceptTimeout, Debug) ->
     case file_2_config(ConfigFile) of
 	{ok, ConfigList, Address, Port} ->
-	    Name    = make_name(Address, Port),
+	    Profile = proplists:get_value(profile, ConfigList, ?DEFAULT_PROFILE), 
+	    Name    = make_name(Address, Port, Profile),
 	    SupName = {local, Name},
 	    supervisor:start_link(SupName, ?MODULE, 
 				  [ConfigFile, ConfigList, AcceptTimeout,
@@ -70,7 +74,8 @@ start_link([{_, _}| _] = Config, AcceptTimeout, ListenInfo, Debug) ->
 	{ok, Config2} ->
 	    Address = proplists:get_value(bind_address, Config2),
 	    Port    = proplists:get_value(port, Config2), 
-	    Name = make_name(Address, Port),
+	    Profile = proplists:get_value(profile, Config2, ?DEFAULT_PROFILE), 
+	    Name = make_name(Address, Port, Profile),
 	    SupName = {local, Name},
 	    supervisor:start_link(SupName, ?MODULE, 
 				  [undefined, Config2, AcceptTimeout,
@@ -83,7 +88,8 @@ start_link([{_, _}| _] = Config, AcceptTimeout, ListenInfo, Debug) ->
 start_link(ConfigFile, AcceptTimeout, ListenInfo, Debug) ->
     case file_2_config(ConfigFile) of
 	{ok, ConfigList, Address, Port} ->
-	    Name    = make_name(Address, Port),
+	    Profile = proplists:get_value(profile, ConfigList, ?DEFAULT_PROFILE), 
+	    Name    = make_name(Address, Port, Profile),
 	    SupName = {local, Name},
 	    supervisor:start_link(SupName, ?MODULE, 
 				  [ConfigFile, ConfigList, AcceptTimeout,
@@ -99,22 +105,24 @@ start_link(ConfigFile, AcceptTimeout, ListenInfo, Debug) ->
 %%%=========================================================================
 init([ConfigFile, ConfigList, AcceptTimeout, Debug, Address, Port]) -> 
     httpd_util:enable_debug(Debug), 
+    Profile = proplists:get_value(profile, ConfigList, ?DEFAULT_PROFILE),
     Flags = {one_for_one, 0, 1},
-    Children  = [httpd_connection_sup_spec(Address, Port), 
-		 httpd_acceptor_sup_spec(Address, Port, ConfigList, AcceptTimeout,
+    Children  = [httpd_connection_sup_spec(Address, Port, Profile), 
+		 httpd_acceptor_sup_spec(Address, Port, Profile, ConfigList, AcceptTimeout,
 					 undefined), 
-		 sup_spec(httpd_misc_sup, Address, Port), 
-		 worker_spec(httpd_manager, Address, Port, 
+		 sup_spec(httpd_misc_sup, Address, Port, Profile), 
+		 worker_spec(httpd_manager, Address, Port, Profile, 
 			     ConfigFile, ConfigList,AcceptTimeout)],
     {ok, {Flags, Children}};
 init([ConfigFile, ConfigList, AcceptTimeout, Debug, Address, Port, ListenInfo]) -> 
     httpd_util:enable_debug(Debug), 
+    Profile = proplists:get_value(profile, ConfigList, ?DEFAULT_PROFILE),
     Flags = {one_for_one, 0, 1},
-    Children  = [httpd_connection_sup_spec(Address, Port), 
-		 httpd_acceptor_sup_spec(Address, Port, ConfigList, AcceptTimeout,
-					ListenInfo), 
-		 sup_spec(httpd_misc_sup, Address, Port), 
-		 worker_spec(httpd_manager, Address, Port, ListenInfo, 
+    Children  = [httpd_connection_sup_spec(Address, Port, Profile), 
+		 httpd_acceptor_sup_spec(Address, Port, Profile, ConfigList, AcceptTimeout,
+					 ListenInfo), 
+		 sup_spec(httpd_misc_sup, Address, Port, Profile), 
+		 worker_spec(httpd_manager, Address, Port, Profile, ListenInfo, 
 			     ConfigFile, ConfigList, AcceptTimeout)],
     {ok, {Flags, Children}}.
 
@@ -122,8 +130,8 @@ init([ConfigFile, ConfigList, AcceptTimeout, Debug, Address, Port, ListenInfo])
 %%%=========================================================================
 %%%  Internal functions
 %%%=========================================================================
-httpd_connection_sup_spec(Address, Port) -> 
-    Name = {httpd_connection_sup, Address, Port},
+httpd_connection_sup_spec(Address, Port, Profile) -> 
+    Name = {httpd_connection_sup, Address, Port, Profile},
     StartFunc = {httpd_connection_sup, start_link, [[Address, Port]]},
     Restart = permanent,
     Shutdown = 5000,
@@ -131,8 +139,8 @@ httpd_connection_sup_spec(Address, Port) ->
     Type = supervisor,
     {Name, StartFunc, Restart, Shutdown, Type, Modules}.
 
-httpd_acceptor_sup_spec(Address, Port, ConfigList, AcceptTimeout, ListenInfo) ->
-    Name = {httpd_acceptor_sup, Address, Port},
+httpd_acceptor_sup_spec(Address, Port, Profile, ConfigList, AcceptTimeout, ListenInfo) ->
+    Name = {httpd_acceptor_sup, Address, Port, Profile},
     StartFunc = {httpd_acceptor_sup, start_link, [[Address, Port, ConfigList, AcceptTimeout, ListenInfo]]},
     Restart = permanent, 
     Shutdown = infinity,
@@ -140,18 +148,18 @@ httpd_acceptor_sup_spec(Address, Port, ConfigList, AcceptTimeout, ListenInfo) ->
     Type = supervisor,
     {Name, StartFunc, Restart, Shutdown, Type, Modules}.
     
-sup_spec(SupModule, Address, Port) ->
-    Name = {SupModule, Address, Port},
-    StartFunc = {SupModule, start_link, [Address, Port]},
+sup_spec(SupModule, Address, Port, Profile) ->
+    Name = {SupModule, Address, Port, Profile},
+    StartFunc = {SupModule, start_link, [Address, Port, Profile]},
     Restart = permanent, 
     Shutdown = infinity,
     Modules = [SupModule],
     Type = supervisor,
     {Name, StartFunc, Restart, Shutdown, Type, Modules}.
     
-worker_spec(WorkerModule, Address, Port, ConfigFile, 
+worker_spec(WorkerModule, Address, Port, Profile, ConfigFile, 
 	    ConfigList, AcceptTimeout) ->
-    Name = {WorkerModule, Address, Port},
+    Name = {WorkerModule, Address, Port, Profile},
     StartFunc = {WorkerModule, start_link, 
 		 [ConfigFile, ConfigList, AcceptTimeout]}, 
     Restart = permanent, 
@@ -160,9 +168,9 @@ worker_spec(WorkerModule, Address, Port, ConfigFile,
     Type = worker,
     {Name, StartFunc, Restart, Shutdown, Type, Modules}.
 
-worker_spec(WorkerModule, Address, Port, ListenInfo, ConfigFile, 
+worker_spec(WorkerModule, Address, Port, Profile, ListenInfo, ConfigFile, 
 	    ConfigList, AcceptTimeout) ->
-    Name = {WorkerModule, Address, Port},
+    Name = {WorkerModule, Address, Port, Profile},
     StartFunc = {WorkerModule, start_link, 
 		 [ConfigFile, ConfigList, AcceptTimeout, ListenInfo]}, 
     Restart = permanent, 
@@ -171,8 +179,8 @@ worker_spec(WorkerModule, Address, Port, ListenInfo, ConfigFile,
     Type = worker,
     {Name, StartFunc, Restart, Shutdown, Type, Modules}.
 
-make_name(Address,Port) ->
-    httpd_util:make_name("httpd_instance_sup", Address, Port).
+make_name(Address, Port, Profile) ->
+    httpd_util:make_name("httpd_instance_sup", Address, Port, Profile).
 
 
 file_2_config(ConfigFile) ->
diff --git a/lib/inets/src/http_server/httpd_internal.hrl b/lib/inets/src/http_server/httpd_internal.hrl
index 108469ea0a..9829ca255c 100644
--- a/lib/inets/src/http_server/httpd_internal.hrl
+++ b/lib/inets/src/http_server/httpd_internal.hrl
@@ -31,6 +31,8 @@
 -define(SOCKET_MAX_POLL,25).
 -define(FILE_CHUNK_SIZE,64*1024).
 -define(GATEWAY_INTERFACE,"CGI/1.1").
+-define(DEFAULT_PROFILE, default).
+
 -define(NICE(Reason),lists:flatten(atom_to_list(?MODULE)++": "++Reason)).
 -define(DEFAULT_CONTEXT,
 	[{errmsg,"[an error occurred while processing this directive]"},
diff --git a/lib/inets/src/http_server/httpd_manager.erl b/lib/inets/src/http_server/httpd_manager.erl
index 3da0343401..995316d5e8 100644
--- a/lib/inets/src/http_server/httpd_manager.erl
+++ b/lib/inets/src/http_server/httpd_manager.erl
@@ -28,7 +28,7 @@
 -export([start/2, start_link/2, start_link/3, start_link/4, 
 	 stop/1, reload/2]).
 -export([new_connection/1]).
--export([config_match/2, config_match/3]).
+-export([config_match/3, config_match/4]).
 -export([block/2, block/3, unblock/1]).
 
 %% gen_server exports
@@ -54,7 +54,8 @@
 start(ConfigFile, ConfigList) ->
     Port = proplists:get_value(port,ConfigList,80),
     Addr = proplists:get_value(bind_address, ConfigList),
-    Name = make_name(Addr,Port),
+    Profile = proplists:get_value(profile, ConfigList, default),
+    Name = make_name(Addr, Port, Profile),
     gen_server:start({local,Name},?MODULE,
 		     [ConfigFile, ConfigList, 15000, Addr, Port],[]).
 
@@ -65,7 +66,8 @@ start_link(ConfigFile, ConfigList) ->
 start_link(ConfigFile, ConfigList, AcceptTimeout) ->
     Port = proplists:get_value(port, ConfigList, 80),
     Addr = proplists:get_value(bind_address, ConfigList),
-    Name = make_name(Addr, Port),
+    Profile = proplists:get_value(profile, ConfigList, default),
+    Name = make_name(Addr, Port, Profile),
     
     gen_server:start_link({local, Name},?MODULE,
 			  [ConfigFile, ConfigList, 
@@ -74,7 +76,8 @@ start_link(ConfigFile, ConfigList, AcceptTimeout) ->
 start_link(ConfigFile, ConfigList, AcceptTimeout, ListenSocket) ->
     Port = proplists:get_value(port, ConfigList, 80),
     Addr = proplists:get_value(bind_address, ConfigList),
-    Name = make_name(Addr, Port),
+    Profile = proplists:get_value(profile, ConfigList, default),
+    Name = make_name(Addr, Port, Profile),
     
     gen_server:start_link({local, Name},?MODULE,
 			  [ConfigFile, ConfigList, AcceptTimeout, Addr, 
@@ -97,10 +100,10 @@ unblock(ServerRef) ->
 new_connection(Manager) ->
     call(Manager, {new_connection, self()}).
 
-config_match(Port, Pattern) ->
-    config_match(undefined,Port,Pattern).
-config_match(Addr, Port, Pattern) ->
-    Name = httpd_util:make_name("httpd",Addr,Port),
+config_match(Port, Profile, Pattern) ->
+    config_match(undefined,Port, Profile, Pattern).
+config_match(Addr, Port, Profile, Pattern) ->
+    Name = httpd_util:make_name("httpd",Addr,Port, Profile),
     call(whereis(Name), {config_match, Pattern}).
 
 %%%--------------------------------------------------------------------
@@ -446,8 +449,8 @@ get_ustate(ConnectionCnt,State) ->
 	    active
     end.
 
-make_name(Addr,Port) ->
-    httpd_util:make_name("httpd",Addr,Port).
+make_name(Addr, Port, Profile) ->
+    httpd_util:make_name("httpd", Addr, Port, Profile).
 
 
 report_error(State,String) ->
diff --git a/lib/inets/src/http_server/httpd_misc_sup.erl b/lib/inets/src/http_server/httpd_misc_sup.erl
index fd7c28bd7d..e5de66d773 100644
--- a/lib/inets/src/http_server/httpd_misc_sup.erl
+++ b/lib/inets/src/http_server/httpd_misc_sup.erl
@@ -27,8 +27,8 @@
 -behaviour(supervisor).
 
 %% API 
--export([start_link/2, start_auth_server/2, stop_auth_server/2, 
-	 start_sec_server/2,  stop_sec_server/2]).
+-export([start_link/3, start_auth_server/3, stop_auth_server/3, 
+	 start_sec_server/3,  stop_sec_server/3]).
 
 %% Supervisor callback
 -export([init/1]).
@@ -37,26 +37,26 @@
 %%%  API
 %%%=========================================================================
 
-start_link(Addr, Port) ->
-    SupName = make_name(Addr, Port),
+start_link(Addr, Port, Profile) ->
+    SupName = make_name(Addr, Port, Profile),
     supervisor:start_link({local, SupName}, ?MODULE, []).
 
 %%----------------------------------------------------------------------
 %% Function: [start|stop]_[auth|sec]_server/3
 %% Description: Starts a [auth | security] worker (child) process
 %%----------------------------------------------------------------------
-start_auth_server(Addr, Port) ->
-    start_permanent_worker(mod_auth_server, Addr, Port, [gen_server]).
+start_auth_server(Addr, Port, Profile) ->
+    start_permanent_worker(mod_auth_server, Addr, Port, Profile, [gen_server]).
 
-stop_auth_server(Addr, Port) ->
-    stop_permanent_worker(mod_auth_server, Addr, Port).
+stop_auth_server(Addr, Port, Profile) ->
+    stop_permanent_worker(mod_auth_server, Addr, Port, Profile).
 
 
-start_sec_server(Addr, Port) ->
-    start_permanent_worker(mod_security_server, Addr, Port, [gen_server]).
+start_sec_server(Addr, Port, Profile) ->
+    start_permanent_worker(mod_security_server, Addr, Port, Profile, [gen_server]).
 
-stop_sec_server(Addr, Port) ->
-    stop_permanent_worker(mod_security_server, Addr, Port).
+stop_sec_server(Addr, Port, Profile) ->
+    stop_permanent_worker(mod_security_server, Addr, Port, Profile).
 
 
 %%%=========================================================================
@@ -70,15 +70,15 @@ init(_) ->
 %%%=========================================================================
 %%%  Internal functions
 %%%=========================================================================
-start_permanent_worker(Mod, Addr, Port, Modules) ->
-    SupName = make_name(Addr, Port),
+start_permanent_worker(Mod, Addr, Port, Profile, Modules) ->
+    SupName = make_name(Addr, Port, Profile),
     Spec    = {{Mod, Addr, Port},
-	       {Mod, start_link, [Addr, Port]}, 
+	       {Mod, start_link, [Addr, Port, Profile]}, 
 	       permanent, timer:seconds(1), worker, [Mod] ++ Modules},
     supervisor:start_child(SupName, Spec).
 
-stop_permanent_worker(Mod, Addr, Port) ->
-    SupName = make_name(Addr, Port),
+stop_permanent_worker(Mod, Addr, Port, Profile) ->
+    SupName = make_name(Addr, Port, Profile),
     Name    = {Mod, Addr, Port},
     case supervisor:terminate_child(SupName, Name) of
 	ok ->
@@ -87,5 +87,5 @@ stop_permanent_worker(Mod, Addr, Port) ->
 	    Error
     end.
     
-make_name(Addr,Port) ->
-    httpd_util:make_name("httpd_misc_sup",Addr,Port).
+make_name(Addr,Port, Profile) ->
+    httpd_util:make_name("httpd_misc_sup",Addr,Port, Profile).
diff --git a/lib/inets/src/http_server/httpd_sup.erl b/lib/inets/src/http_server/httpd_sup.erl
index 3b1e16cf78..b45742136a 100644
--- a/lib/inets/src/http_server/httpd_sup.erl
+++ b/lib/inets/src/http_server/httpd_sup.erl
@@ -28,7 +28,7 @@
 
 %% Internal application API
 -export([start_link/1, start_link/2]).
--export([start_child/1, restart_child/2, stop_child/2]).
+-export([start_child/1, restart_child/3, stop_child/3]).
 
 %% Supervisor callback
 -export([init/1]).
@@ -37,7 +37,6 @@
 
 -define(TIMEOUT, 15000).
 -include("httpd_internal.hrl").
--include("inets_internal.hrl").
 
 %%%=========================================================================
 %%%  API
@@ -64,33 +63,32 @@ start_child(Config) ->
     end.
     
 
-restart_child(Address, Port) ->
-    Name = id(Address, Port),
+restart_child(Address, Port, Profile) ->
+    Name = id(Address, Port, Profile),
     case supervisor:terminate_child(?MODULE, Name) of
-        ok ->
-            supervisor:restart_child(?MODULE, Name);
-        Error ->
-            Error
-    end.
-    
-stop_child(Address, Port) ->
-    Name = id(Address, Port),
+	ok ->
+             supervisor:restart_child(?MODULE, Name);
+	Error ->
+             Error
+     end.
+
+stop_child(Address, Port, Profile) ->
+    Name = id(Address, Port, Profile),
     case supervisor:terminate_child(?MODULE, Name) of
-        ok ->
-            supervisor:delete_child(?MODULE, Name);
-        Error ->
+         ok ->
+	    supervisor:delete_child(?MODULE, Name);
+         Error ->
             Error
     end.
-    
-id(Address, Port) ->
-    {httpd_instance_sup, Address, Port}.
+
+id(Address, Port, Profile) ->
+    {httpd_instance_sup, Address, Port, Profile}.
 
 
 %%%=========================================================================
 %%%  Supervisor callback
 %%%=========================================================================
 init([HttpdServices]) ->
-    ?hdrd("starting", [{httpd_service, HttpdServices}]),
     RestartStrategy = one_for_one,
     MaxR = 10,
     MaxT = 3600,
@@ -118,23 +116,18 @@ init([HttpdServices]) ->
 child_specs([], Acc) ->
     Acc;
 child_specs([{httpd, HttpdService} | Rest], Acc) ->
-    ?hdrd("child specs", [{httpd, HttpdService}]),
     NewHttpdService = (catch mk_tuple_list(HttpdService)),
-    ?hdrd("child specs", [{new_httpd, NewHttpdService}]),
     case catch child_spec(NewHttpdService) of
 	{error, Reason} ->
-	    ?hdri("failed generating child spec", [{reason, Reason}]),
 	    error_msg("Failed to start service: ~n~p ~n due to: ~p~n",
 		      [HttpdService, Reason]),
 	    child_specs(Rest, Acc);
 	Spec ->
-	    ?hdrt("child spec", [{child_spec, Spec}]),
 	    child_specs(Rest, [Spec | Acc])
     end.
 
 child_spec(HttpdService) ->
     {ok, Config}  = httpd_config(HttpdService),
-    ?hdrt("child spec", [{config, Config}]),
     Debug         = proplists:get_value(debug, Config, []),
     AcceptTimeout = proplists:get_value(accept_timeout, Config, 15000),
     httpd_util:valid_options(Debug, AcceptTimeout, Config),
@@ -162,32 +155,27 @@ httpd_config([Value| _] = Config) when is_tuple(Value) ->
 
 httpd_child_spec([Value| _] = Config, AcceptTimeout, Debug)  
   when is_tuple(Value)  ->
-    ?hdrt("httpd_child_spec - entry", [{accept_timeout, AcceptTimeout}, 
-				       {debug,          Debug}]),
     Address = proplists:get_value(bind_address, Config, any),
     Port    = proplists:get_value(port, Config, 80),
-    httpd_child_spec(Config, AcceptTimeout, Debug, Address, Port);
+    Profile =  proplists:get_value(profile, Config, ?DEFAULT_PROFILE),
+    httpd_child_spec(Config, AcceptTimeout, Debug, Address, Port, Profile);
 
 %% In this case the AcceptTimeout and Debug will only have default values...
 httpd_child_spec(ConfigFile, AcceptTimeoutDef, DebugDef) ->
-    ?hdrt("httpd_child_spec - entry", [{config_file,        ConfigFile}, 
-				       {accept_timeout_def, AcceptTimeoutDef}, 
-				       {debug_def,          DebugDef}]),
     case httpd_conf:load(ConfigFile) of
 	{ok, ConfigList} ->
-	    ?hdrt("httpd_child_spec - loaded", [{config_list, ConfigList}]),
 	    case (catch httpd_conf:validate_properties(ConfigList)) of
 		{ok, Config} ->
-		    ?hdrt("httpd_child_spec - validated", [{config, Config}]),
 		    Address = proplists:get_value(bind_address, Config, any), 
 		    Port    = proplists:get_value(port, Config, 80),
+		    Profile = proplists:get_value(profile, Config, ?DEFAULT_PROFILE),
 		    AcceptTimeout = 
 			proplists:get_value(accept_timeout, Config, 
 					    AcceptTimeoutDef),
 		    Debug   = 
 			proplists:get_value(debug, Config, DebugDef),
 		    httpd_child_spec([{file, ConfigFile} | Config], 
-				     AcceptTimeout, Debug, Address, Port);
+				     AcceptTimeout, Debug, Address, Port, Profile);
 		Error ->
 		    Error
 	    end;
@@ -195,19 +183,19 @@ httpd_child_spec(ConfigFile, AcceptTimeoutDef, DebugDef) ->
 	    Error
     end.
 
-httpd_child_spec(Config, AcceptTimeout, Debug, Addr, Port) ->
+httpd_child_spec(Config, AcceptTimeout, Debug, Addr, Port, Profile) ->
     Fd  = proplists:get_value(fd, Config, undefined),
     case Port == 0 orelse Fd =/= undefined of
 	true ->
-	    httpd_child_spec_listen(Config, AcceptTimeout, Debug, Addr, Port);
+	    httpd_child_spec_listen(Config, AcceptTimeout, Debug, Addr, Port, Profile);
 	false ->
-	    httpd_child_spec_nolisten(Config, AcceptTimeout, Debug, Addr, Port)
+	    httpd_child_spec_nolisten(Config, AcceptTimeout, Debug, Addr, Port, Profile)
     end.
 
-httpd_child_spec_listen(Config, AcceptTimeout, Debug, Addr, Port) ->
+httpd_child_spec_listen(Config, AcceptTimeout, Debug, Addr, Port, Profile) ->
     case start_listen(Addr, Port, Config) of
 	{Pid, {NewPort, NewConfig, ListenSocket}} ->
-	    Name      = {httpd_instance_sup, Addr, NewPort},
+	    Name      = {httpd_instance_sup, Addr, NewPort, Profile},
 	    StartFunc = {httpd_instance_sup, start_link,
 			 [NewConfig, AcceptTimeout, 
 			  {Pid, ListenSocket}, Debug]},
@@ -221,8 +209,8 @@ httpd_child_spec_listen(Config, AcceptTimeout, Debug, Addr, Port) ->
 	    {error, Reason}
     end.
 		    
-httpd_child_spec_nolisten(Config, AcceptTimeout, Debug, Addr, Port) ->
-    Name = {httpd_instance_sup, Addr, Port},
+httpd_child_spec_nolisten(Config, AcceptTimeout, Debug, Addr, Port, Profile) ->    
+    Name = {httpd_instance_sup, Addr, Port, Profile},
     StartFunc = {httpd_instance_sup, start_link,
 		 [Config, AcceptTimeout, Debug]},
     Restart = permanent, 
diff --git a/lib/inets/src/http_server/httpd_util.erl b/lib/inets/src/http_server/httpd_util.erl
index 0d04a75205..b1ddc1abbb 100644
--- a/lib/inets/src/http_server/httpd_util.erl
+++ b/lib/inets/src/http_server/httpd_util.erl
@@ -572,7 +572,10 @@ make_name(Prefix,Port) ->
 
 make_name(Prefix,Addr,Port) ->
     make_name(Prefix,Addr,Port,"").
-    
+
+make_name(Prefix, Addr,Port,Postfix) when is_atom(Postfix)->
+    make_name(Prefix, Addr,Port, atom_to_list(Postfix));
+
 make_name(Prefix,"*",Port,Postfix) ->
     make_name(Prefix,undefined,Port,Postfix);
 
@@ -595,15 +598,7 @@ make_name2({A,B,C,D}) ->
     io_lib:format("~w_~w_~w_~w", [A,B,C,D]);
 
 make_name2({A, B, C, D, E, F, G, H}) ->
-    io_lib:format("~s_~s_~s_~s_~s_~s_~s_~s", [integer_to_hexlist(A),
-					      integer_to_hexlist(B),
-					      integer_to_hexlist(C),
-					      integer_to_hexlist(D),
-					      integer_to_hexlist(E),
-					      integer_to_hexlist(F),
-					      integer_to_hexlist(G),
-					      integer_to_hexlist(H)
-					     ]);
+    io_lib:format("~w_~w_~w_~w_~w_~w_~w_~w", [A,B,C,D,E,F,G,H]);
 make_name2(Addr) ->
     search_and_replace(Addr,$.,$_).
 
diff --git a/lib/inets/src/http_server/mod_auth.erl b/lib/inets/src/http_server/mod_auth.erl
index 85a87ab884..1f4470622d 100644
--- a/lib/inets/src/http_server/mod_auth.erl
+++ b/lib/inets/src/http_server/mod_auth.erl
@@ -38,15 +38,16 @@
 -include("httpd.hrl").
 -include("mod_auth.hrl").
 -include("httpd_internal.hrl").
--include("inets_internal.hrl").
 
 -define(VMODULE,"AUTH").
 
 -define(NOPASSWORD,"NoPassword").
 
-%% do
+%%====================================================================
+%% Internal application API
+%%====================================================================	     
+
 do(Info) ->
-    ?hdrt("do", [{info, Info}]),
     case proplists:get_value(status,Info#mod.data) of
 	%% A status code has been generated!
 	{_StatusCode, _PhraseArgs, _Reason} ->
@@ -61,22 +62,15 @@ do(Info) ->
 		    %% Is it a secret area?
 		    case secretp(Path,Info#mod.config_db) of
 			{yes, {Directory, DirectoryData}} ->
-			    ?hdrt("secret area", 
-				  [{directory, Directory},
-				   {directory_data, DirectoryData}]),
-
-			    %% Authenticate (allow)
 			    case allow((Info#mod.init_data)#init_data.peername,
 				       Info#mod.socket_type,Info#mod.socket,
 				       DirectoryData) of
 				allowed ->
-				    ?hdrt("allowed", []),
 				    case deny((Info#mod.init_data)#init_data.peername,
 					      Info#mod.socket_type, 
 					      Info#mod.socket,
 					      DirectoryData) of
 					not_denied ->
-					    ?hdrt("not denied", []),
 					    case proplists:get_value(auth_type,
 								     DirectoryData) of
 						undefined ->
@@ -90,15 +84,13 @@ do(Info) ->
 							    AuthType)
 					    end;
 					{denied, Reason} ->
-					    ?hdrt("denied", [{reason, Reason}]),
 					    {proceed,
 					     [{status, {403,
-						       Info#mod.request_uri,
-						       Reason}}|
+							Info#mod.request_uri,
+							Reason}}|
 					      Info#mod.data]}
 				    end;
 				{not_allowed, Reason} ->
-				    ?hdrt("not allowed", [{reason, Reason}]),
 				    {proceed,[{status,{403,
 						       Info#mod.request_uri,
 						       Reason}} |
@@ -114,18 +106,299 @@ do(Info) ->
     end.
 
 
-do_auth(Info, Directory, DirectoryData, AuthType) ->
+%% mod_auth recognizes the following Configuration Directives:
+%% <Directory /path/to/directory>
+%%  AuthDBType
+%%  AuthName
+%%  AuthUserFile
+%%  AuthGroupFile
+%%  AuthAccessPassword
+%%  require
+%%  allow
+%% </Directory>
+
+%% When a <Directory> directive is found, a new context is set to
+%% [{directory, Directory, DirData}|OtherContext]
+%% DirData in this case is a key-value list of data belonging to the
+%% directory in question.
+%%
+%% When the </Directory> statement is found, the Context created earlier
+%% will be returned as a ConfigList and the context will return to the
+%% state it was previously.
+
+load("<Directory " ++ Directory,[]) ->
+    Dir = httpd_conf:custom_clean(Directory,"",">"),
+    {ok,[{directory, {Dir, [{path, Dir}]}}]};
+load(eof,[{directory, {Directory, _DirData}}|_]) ->
+    {error, ?NICE("Premature end-of-file in "++ Directory)};
+
+load("AuthName " ++ AuthName, [{directory, {Directory, DirData}}|Rest]) ->
+    {ok, [{directory, {Directory,
+		       [{auth_name, httpd_conf:clean(AuthName)} | DirData]}} 
+	  | Rest ]};
+load("AuthUserFile " ++ AuthUserFile0,
+     [{directory, {Directory, DirData}}|Rest]) ->
+    AuthUserFile = httpd_conf:clean(AuthUserFile0),
+    {ok, [{directory, {Directory,
+		      [{auth_user_file, AuthUserFile}|DirData]}} | Rest ]};
+load("AuthGroupFile " ++ AuthGroupFile0,
+	 [{directory, {Directory, DirData}}|Rest]) ->
+    AuthGroupFile = httpd_conf:clean(AuthGroupFile0),
+    {ok,[{directory, {Directory,
+	  [{auth_group_file, AuthGroupFile}|DirData]}} | Rest]};
+
+load("AuthAccessPassword " ++ AuthAccessPassword0,
+	 [{directory, {Directory, DirData}}|Rest]) ->
+    AuthAccessPassword = httpd_conf:clean(AuthAccessPassword0),
+    {ok,[{directory, {Directory,
+	  [{auth_access_password, AuthAccessPassword}|DirData]}} | Rest]};
+
+load("AuthDBType " ++ Type,
+	 [{directory, {Dir, DirData}}|Rest]) ->
+    case httpd_conf:clean(Type) of
+	"plain" ->
+	    {ok, [{directory, {Dir, [{auth_type, plain}|DirData]}} | Rest ]};
+	"mnesia" ->
+	    {ok, [{directory, {Dir, [{auth_type, mnesia}|DirData]}} | Rest ]};
+	"dets" ->
+	    {ok, [{directory, {Dir, [{auth_type, dets}|DirData]}} | Rest ]};
+	_ ->
+	    {error, ?NICE(httpd_conf:clean(Type)++" is an invalid AuthDBType")}
+    end;
+
+load("require " ++ Require,[{directory, {Directory, DirData}}|Rest]) ->
+    case inets_regexp:split(Require," ") of
+	{ok,["user"|Users]} ->
+	    {ok,[{directory, {Directory,
+		  [{require_user,Users}|DirData]}} | Rest]};
+	{ok,["group"|Groups]} ->
+	    {ok,[{directory, {Directory,
+		  [{require_group,Groups}|DirData]}} | Rest]};
+	{ok,_} ->
+	    {error,?NICE(httpd_conf:clean(Require) ++" is an invalid require")}
+    end;
+
+load("allow " ++ Allow,[{directory, {Directory, DirData}}|Rest]) ->
+    case inets_regexp:split(Allow," ") of
+	{ok,["from","all"]} ->
+	    {ok,[{directory, {Directory,
+		  [{allow_from,all}|DirData]}} | Rest]};
+	{ok,["from"|Hosts]} ->
+	    {ok,[{directory, {Directory,
+		  [{allow_from,Hosts}|DirData]}} | Rest]};
+	{ok,_} ->
+	    {error,?NICE(httpd_conf:clean(Allow) ++" is an invalid allow")}
+    end;
+
+load("deny " ++ Deny,[{directory, {Directory, DirData}}|Rest]) ->
+    case inets_regexp:split(Deny," ") of
+	{ok, ["from", "all"]} ->
+	    {ok,[{{directory, Directory,
+		  [{deny_from, all}|DirData]}} | Rest]};
+	{ok, ["from"|Hosts]} ->
+	    {ok,[{{directory, Directory,
+		   [{deny_from, Hosts}|DirData]}} | Rest]};
+	{ok, _} ->
+	    {error,?NICE(httpd_conf:clean(Deny) ++" is an invalid deny")}
+    end;
+
+load("</Directory>",[{directory, {Directory, DirData}}|Rest]) -> 
+    {ok, Rest, {directory, {Directory, DirData}}};
+
+load("AuthMnesiaDB " ++ AuthMnesiaDB,
+      [{directory, {Dir, DirData}}|Rest]) ->
+    case httpd_conf:clean(AuthMnesiaDB) of
+	"On" ->
+	    {ok,[{directory, {Dir,[{auth_type,mnesia}|DirData]}}|Rest]};
+	"Off" ->
+	    {ok,[{directory, {Dir,[{auth_type,plain}|DirData]}}|Rest]};
+	_ ->
+	    {error, ?NICE(httpd_conf:clean(AuthMnesiaDB) ++
+			  " is an invalid AuthMnesiaDB")}
+    end.
+
+store({directory, {Directory, DirData}}, ConfigList) 
+  when is_list(Directory) andalso is_list(DirData) ->
+    try directory_config_check(Directory, DirData) of
+	ok ->
+	    store_directory(Directory, DirData, ConfigList) 
+    catch
+	throw:Error ->
+	    {error, Error, {directory, Directory, DirData}}
+    end;
+store({directory, {Directory, DirData}}, _) ->
+    {error, {wrong_type, {directory, {Directory, DirData}}}}.
+
+remove(ConfigDB) ->
+    lists:foreach(fun({directory, {_Dir, DirData}}) -> 
+			  AuthMod = auth_mod_name(DirData),
+			  (catch apply(AuthMod, remove, [DirData]))
+		  end,
+		  ets:match_object(ConfigDB,{directory,{'_','_'}})),
+
+    Addr = httpd_util:lookup(ConfigDB, bind_address, undefined),
+    Port = httpd_util:lookup(ConfigDB, port),
+    Profile = httpd_util:lookup(ConfigDB, profile, ?DEFAULT_PROFILE),
+    mod_auth_server:stop(Addr, Port, Profile),
+    ok.
+
+add_user(UserName, Opt) ->
+    case get_options(Opt, mandatory) of
+	{Addr, Port, Dir, AuthPwd}->
+	    case get_options(Opt, userData) of
+		{error, Reason}->
+		    {error, Reason};
+		{UserData, Password}->
+		    User = [#httpd_user{username  = UserName, 
+					password  = Password,
+					user_data = UserData}],
+		    mod_auth_server:add_user(Addr, Port, Dir, User, AuthPwd)
+	    end
+    end.
+
+
+add_user(UserName, Password, UserData, Port, Dir) ->
+    add_user(UserName, Password, UserData, undefined, Port, Dir).
+add_user(UserName, Password, UserData, Addr, Port, Dir) ->
+    User = [#httpd_user{username  = UserName, 
+			password  = Password,
+			user_data = UserData}],
+    mod_auth_server:add_user(Addr, Port, Dir, User, ?NOPASSWORD).
+
+get_user(UserName, Opt) ->
+    case get_options(Opt, mandatory) of
+	{Addr, Port, Dir, AuthPwd} ->
+	    mod_auth_server:get_user(Addr, Port, Dir, UserName, AuthPwd);
+	{error, Reason} ->
+	    {error, Reason}
+    end.
+
+get_user(UserName, Port, Dir) ->
+    get_user(UserName, undefined, Port, Dir).
+get_user(UserName, Addr, Port, Dir) ->
+    mod_auth_server:get_user(Addr, Port, Dir, UserName, ?NOPASSWORD).
+
+add_group_member(GroupName, UserName, Opt)->
+    case get_options(Opt, mandatory) of
+	{Addr, Port, Dir, AuthPwd}->
+	    mod_auth_server:add_group_member(Addr, Port, Dir, 
+					     GroupName, UserName, AuthPwd);
+	{error, Reason} ->
+	    {error, Reason}
+    end.
+
+add_group_member(GroupName, UserName, Port, Dir) ->
+    add_group_member(GroupName, UserName, undefined, Port, Dir).
+
+add_group_member(GroupName, UserName, Addr, Port, Dir) ->
+    mod_auth_server:add_group_member(Addr, Port, Dir, 
+				     GroupName, UserName, ?NOPASSWORD).
+
+delete_group_member(GroupName, UserName, Opt) ->
+    case get_options(Opt, mandatory) of
+	{Addr, Port, Dir, AuthPwd} ->
+	    mod_auth_server:delete_group_member(Addr, Port, Dir, 
+						GroupName, UserName, AuthPwd);
+	{error, Reason} ->
+	    {error, Reason}
+    end.
+
+delete_group_member(GroupName, UserName, Port, Dir) ->
+    delete_group_member(GroupName, UserName, undefined, Port, Dir).
+delete_group_member(GroupName, UserName, Addr, Port, Dir) ->
+    mod_auth_server:delete_group_member(Addr, Port, Dir, 
+					GroupName, UserName, ?NOPASSWORD).
+
+list_users(Opt) ->
+    case get_options(Opt, mandatory) of
+	{Addr, Port, Dir, AuthPwd} ->
+	    mod_auth_server:list_users(Addr, Port, Dir, AuthPwd);
+	{error, Reason} ->
+	    {error, Reason}
+    end.
+
+list_users(Port, Dir) ->
+    list_users(undefined, Port, Dir).
+list_users(Addr, Port, Dir) ->
+    mod_auth_server:list_users(Addr, Port, Dir, ?NOPASSWORD).
+
+delete_user(UserName, Opt) ->
+    case get_options(Opt, mandatory) of
+	{Addr, Port, Dir, AuthPwd} ->
+	    mod_auth_server:delete_user(Addr, Port, Dir, UserName, AuthPwd);
+	{error, Reason} ->
+	    {error, Reason}
+    end.
+
+delete_user(UserName, Port, Dir) ->
+    delete_user(UserName, undefined, Port, Dir).
+delete_user(UserName, Addr, Port, Dir) ->
+    mod_auth_server:delete_user(Addr, Port, Dir, UserName, ?NOPASSWORD).
+
+delete_group(GroupName, Opt) ->
+    case get_options(Opt, mandatory) of
+	{Addr, Port, Dir, AuthPwd} ->
+	    mod_auth_server:delete_group(Addr, Port, Dir, GroupName, AuthPwd);
+	{error, Reason} ->
+	    {error, Reason}
+    end.
+
+delete_group(GroupName, Port, Dir) ->
+    delete_group(GroupName, undefined, Port, Dir).
+delete_group(GroupName, Addr, Port, Dir) ->
+    mod_auth_server:delete_group(Addr, Port, Dir, GroupName, ?NOPASSWORD).
+
+list_groups(Opt) ->
+    case get_options(Opt, mandatory) of
+	{Addr, Port, Dir, AuthPwd} ->
+	    mod_auth_server:list_groups(Addr, Port, Dir, AuthPwd);
+	{error, Reason} ->
+	    {error, Reason}
+    end.
+
+list_groups(Port, Dir) ->
+    list_groups(undefined, Port, Dir).
+list_groups(Addr, Port, Dir) ->
+    mod_auth_server:list_groups(Addr, Port, Dir, ?NOPASSWORD).
+
+list_group_members(GroupName, Opt) ->
+    case get_options(Opt, mandatory) of
+	{Addr, Port, Dir, AuthPwd} ->
+	    mod_auth_server:list_group_members(Addr, Port, Dir, GroupName, 
+					       AuthPwd);
+	{error, Reason} ->
+	    {error, Reason}
+    end.
+
+list_group_members(GroupName, Port, Dir) ->
+    list_group_members(GroupName, undefined, Port, Dir).
+list_group_members(GroupName, Addr, Port, Dir) ->
+    mod_auth_server:list_group_members(Addr, Port, Dir, 
+				       GroupName, ?NOPASSWORD).
+
+update_password(Port, Dir, Old, New, New)->
+    update_password(undefined, Port, Dir, Old, New, New).
+
+update_password(Addr, Port, Dir, Old, New, New) when is_list(New) ->
+    mod_auth_server:update_password(Addr, Port, Dir, Old, New);
+
+update_password(_Addr, _Port, _Dir, _Old, _New, _New) ->
+    {error, badtype};
+update_password(_Addr, _Port, _Dir, _Old, _New, _New1) ->
+    {error, notqeual}.
+
+%%--------------------------------------------------------------------
+%%% Internal functions
+%%--------------------------------------------------------------------
+
+do_auth(Info, Directory, DirectoryData, _AuthType) ->
     %% Authenticate (require)
-    ?hdrt("authenticate", [{auth_type, AuthType}]),
     case require(Info, Directory, DirectoryData) of
 	authorized ->
-	    ?hdrt("authorized", []),
 	    {proceed,Info#mod.data};
 	{authorized, User} ->
-	    ?hdrt("authorized", [{user, User}]),
 	    {proceed, [{remote_user,User}|Info#mod.data]};
 	{authorization_required, Realm} ->
-	    ?hdrt("authorization required", [{realm, Realm}]),
 	    ReasonPhrase = httpd_util:reason_phrase(401),
 	    Message = httpd_util:message(401,none,Info#mod.config_db),
 	    {proceed,
@@ -142,8 +415,6 @@ do_auth(Info, Directory, DirectoryData, AuthType) ->
 		       Info#mod.data]}
     end.
 
-%% require
-
 require(Info, Directory, DirectoryData) ->
     ParsedHeader = Info#mod.parsed_header,
     ValidUsers   = proplists:get_value(require_user, DirectoryData),
@@ -270,13 +541,6 @@ auth_mod_name(DirData) ->
 	dets ->	  mod_auth_dets
     end.
 
-    
-%%
-%% Is it a secret area?
-%%
-
-%% secretp
-
 secretp(Path,ConfigDB) ->
     Directories = ets:match(ConfigDB,{directory, {'$1','_'}}),
     case secret_path(Path, Directories) of
@@ -307,12 +571,6 @@ secret_path(Path, [[NewDirectory] | Rest], Directory) ->
 	    secret_path(Path, Rest, Directory)
     end.
 
-%%
-%% Authenticate
-%%
-
-%% allow
-
 allow({_,RemoteAddr}, _SocketType, _Socket, DirectoryData) ->
     Hosts = proplists:get_value(allow_from, DirectoryData, all),
     case validate_addr(RemoteAddr, Hosts) of
@@ -336,8 +594,6 @@ validate_addr(RemoteAddr, [HostRegExp | Rest]) ->
 	    validate_addr(RemoteAddr,Rest)
     end.
 
-%% deny
-
 deny({_,RemoteAddr}, _SocketType, _Socket,DirectoryData) ->
     Hosts = proplists:get_value(deny_from, DirectoryData, none),
     case validate_addr(RemoteAddr,Hosts) of
@@ -347,124 +603,6 @@ deny({_,RemoteAddr}, _SocketType, _Socket,DirectoryData) ->
 	    not_denied
     end.    
 
-%%
-%% Configuration
-%%
-
-%% load/2
-%%
-
-%% mod_auth recognizes the following Configuration Directives:
-%% <Directory /path/to/directory>
-%%  AuthDBType
-%%  AuthName
-%%  AuthUserFile
-%%  AuthGroupFile
-%%  AuthAccessPassword
-%%  require
-%%  allow
-%% </Directory>
-
-%% When a <Directory> directive is found, a new context is set to
-%% [{directory, Directory, DirData}|OtherContext]
-%% DirData in this case is a key-value list of data belonging to the
-%% directory in question.
-%%
-%% When the </Directory> statement is found, the Context created earlier
-%% will be returned as a ConfigList and the context will return to the
-%% state it was previously.
-
-load("<Directory " ++ Directory,[]) ->
-    Dir = httpd_conf:custom_clean(Directory,"",">"),
-    {ok,[{directory, {Dir, [{path, Dir}]}}]};
-load(eof,[{directory, {Directory, _DirData}}|_]) ->
-    {error, ?NICE("Premature end-of-file in "++ Directory)};
-
-load("AuthName " ++ AuthName, [{directory, {Directory, DirData}}|Rest]) ->
-    {ok, [{directory, {Directory,
-		       [{auth_name, httpd_conf:clean(AuthName)} | DirData]}} 
-	  | Rest ]};
-load("AuthUserFile " ++ AuthUserFile0,
-     [{directory, {Directory, DirData}}|Rest]) ->
-    AuthUserFile = httpd_conf:clean(AuthUserFile0),
-    {ok, [{directory, {Directory,
-		      [{auth_user_file, AuthUserFile}|DirData]}} | Rest ]};
-load("AuthGroupFile " ++ AuthGroupFile0,
-	 [{directory, {Directory, DirData}}|Rest]) ->
-    AuthGroupFile = httpd_conf:clean(AuthGroupFile0),
-    {ok,[{directory, {Directory,
-	  [{auth_group_file, AuthGroupFile}|DirData]}} | Rest]};
-
-%AuthAccessPassword
-load("AuthAccessPassword " ++ AuthAccessPassword0,
-	 [{directory, {Directory, DirData}}|Rest]) ->
-    AuthAccessPassword = httpd_conf:clean(AuthAccessPassword0),
-    {ok,[{directory, {Directory,
-	  [{auth_access_password, AuthAccessPassword}|DirData]}} | Rest]};
-
-load("AuthDBType " ++ Type,
-	 [{directory, {Dir, DirData}}|Rest]) ->
-    case httpd_conf:clean(Type) of
-	"plain" ->
-	    {ok, [{directory, {Dir, [{auth_type, plain}|DirData]}} | Rest ]};
-	"mnesia" ->
-	    {ok, [{directory, {Dir, [{auth_type, mnesia}|DirData]}} | Rest ]};
-	"dets" ->
-	    {ok, [{directory, {Dir, [{auth_type, dets}|DirData]}} | Rest ]};
-	_ ->
-	    {error, ?NICE(httpd_conf:clean(Type)++" is an invalid AuthDBType")}
-    end;
-
-load("require " ++ Require,[{directory, {Directory, DirData}}|Rest]) ->
-    case inets_regexp:split(Require," ") of
-	{ok,["user"|Users]} ->
-	    {ok,[{directory, {Directory,
-		  [{require_user,Users}|DirData]}} | Rest]};
-	{ok,["group"|Groups]} ->
-	    {ok,[{directory, {Directory,
-		  [{require_group,Groups}|DirData]}} | Rest]};
-	{ok,_} ->
-	    {error,?NICE(httpd_conf:clean(Require) ++" is an invalid require")}
-    end;
-
-load("allow " ++ Allow,[{directory, {Directory, DirData}}|Rest]) ->
-    case inets_regexp:split(Allow," ") of
-	{ok,["from","all"]} ->
-	    {ok,[{directory, {Directory,
-		  [{allow_from,all}|DirData]}} | Rest]};
-	{ok,["from"|Hosts]} ->
-	    {ok,[{directory, {Directory,
-		  [{allow_from,Hosts}|DirData]}} | Rest]};
-	{ok,_} ->
-	    {error,?NICE(httpd_conf:clean(Allow) ++" is an invalid allow")}
-    end;
-
-load("deny " ++ Deny,[{directory, {Directory, DirData}}|Rest]) ->
-    case inets_regexp:split(Deny," ") of
-	{ok, ["from", "all"]} ->
-	    {ok,[{{directory, Directory,
-		  [{deny_from, all}|DirData]}} | Rest]};
-	{ok, ["from"|Hosts]} ->
-	    {ok,[{{directory, Directory,
-		   [{deny_from, Hosts}|DirData]}} | Rest]};
-	{ok, _} ->
-	    {error,?NICE(httpd_conf:clean(Deny) ++" is an invalid deny")}
-    end;
-
-load("</Directory>",[{directory, {Directory, DirData}}|Rest]) -> 
-    {ok, Rest, {directory, {Directory, DirData}}};
-
-load("AuthMnesiaDB " ++ AuthMnesiaDB,
-      [{directory, {Dir, DirData}}|Rest]) ->
-    case httpd_conf:clean(AuthMnesiaDB) of
-	"On" ->
-	    {ok,[{directory, {Dir,[{auth_type,mnesia}|DirData]}}|Rest]};
-	"Off" ->
-	    {ok,[{directory, {Dir,[{auth_type,plain}|DirData]}}|Rest]};
-	_ ->
-	    {error, ?NICE(httpd_conf:clean(AuthMnesiaDB) ++
-			  " is an invalid AuthMnesiaDB")}
-    end.
 
 directory_config_check(Directory, DirData) ->
     case proplists:get_value(auth_type, DirData) of
@@ -482,25 +620,7 @@ check_filename_present(Dir,AuthFile,DirData) ->
 	    throw({missing_auth_file, AuthFile, {directory, {Dir, DirData}}})
     end.
 
-%% store
-
-store({directory, {Directory, DirData}}, ConfigList) 
-  when is_list(Directory) andalso is_list(DirData) ->
-    ?hdrt("store", 
-	  [{directory, Directory}, {dir_data, DirData}]),
-    try directory_config_check(Directory, DirData) of
-	ok ->
-	    store_directory(Directory, DirData, ConfigList) 
-    catch
-	throw:Error ->
-	    {error, Error, {directory, Directory, DirData}}
-    end;
-store({directory, {Directory, DirData}}, _) ->
-    {error, {wrong_type, {directory, {Directory, DirData}}}}.
-
 store_directory(Directory0, DirData0, ConfigList) ->
-    ?hdrt("store directory - entry", 
-	  [{directory, Directory0}, {dir_data, DirData0}]),
     Port = proplists:get_value(port, ConfigList),
     DirData = case proplists:get_value(bind_address, ConfigList) of
 		  undefined ->
@@ -522,9 +642,7 @@ store_directory(Directory0, DirData0, ConfigList) ->
 	    dets ->   mod_auth_dets;
 	    plain ->  mod_auth_plain;
 	    _ ->      no_module_at_all
-	end,
-    ?hdrt("store directory", 
-	  [{directory, Directory}, {dir_data, DirData}, {auth_mod, AuthMod}]),
+	end,  
     case AuthMod of
 	no_module_at_all ->
 	    {ok, {directory, {Directory, DirData}}};
@@ -560,204 +678,10 @@ store_directory(Directory0, DirData0, ConfigList) ->
 add_auth_password(Dir, Pwd0, ConfigList) ->    
     Addr = proplists:get_value(bind_address, ConfigList),
     Port = proplists:get_value(port, ConfigList),
-    mod_auth_server:start(Addr, Port),
+    Profile = proplists:get_value(profile, ConfigList, ?DEFAULT_PROFILE),
+    mod_auth_server:start(Addr, Port, Profile),
     mod_auth_server:add_password(Addr, Port, Dir, Pwd0).
     
-%% remove
-
-
-remove(ConfigDB) ->
-    lists:foreach(fun({directory, {_Dir, DirData}}) -> 
-			  AuthMod = auth_mod_name(DirData),
-			  (catch apply(AuthMod, remove, [DirData]))
-		  end,
-		  ets:match_object(ConfigDB,{directory,{'_','_'}})),
-    Addr = case lookup(ConfigDB, bind_address) of
-	       [] -> 
-		   undefined;
-	       [{bind_address, Address}] ->
-		   Address
-	   end,
-    [{port, Port}] = lookup(ConfigDB, port),
-    mod_auth_server:stop(Addr, Port),
-    ok.
-
-%% --------------------------------------------------------------------
-
-%% update_password
-
-update_password(Port, Dir, Old, New, New)->
-    update_password(undefined, Port, Dir, Old, New, New).
-
-update_password(Addr, Port, Dir, Old, New, New) when is_list(New) ->
-    mod_auth_server:update_password(Addr, Port, Dir, Old, New);
-
-update_password(_Addr, _Port, _Dir, _Old, _New, _New) ->
-    {error, badtype};
-update_password(_Addr, _Port, _Dir, _Old, _New, _New1) ->
-    {error, notqeual}.
-
-
-%% add_user
-
-add_user(UserName, Opt) ->
-    case get_options(Opt, mandatory) of
-	{Addr, Port, Dir, AuthPwd}->
-	    case get_options(Opt, userData) of
-		{error, Reason}->
-		    {error, Reason};
-		{UserData, Password}->
-		    User = [#httpd_user{username  = UserName, 
-					password  = Password,
-					user_data = UserData}],
-		    mod_auth_server:add_user(Addr, Port, Dir, User, AuthPwd)
-	    end
-    end.
-
-
-add_user(UserName, Password, UserData, Port, Dir) ->
-    add_user(UserName, Password, UserData, undefined, Port, Dir).
-add_user(UserName, Password, UserData, Addr, Port, Dir) ->
-    User = [#httpd_user{username  = UserName, 
-			password  = Password,
-			user_data = UserData}],
-    mod_auth_server:add_user(Addr, Port, Dir, User, ?NOPASSWORD).
-
-
-%% get_user
-
-get_user(UserName, Opt) ->
-    case get_options(Opt, mandatory) of
-	{Addr, Port, Dir, AuthPwd} ->
-	    mod_auth_server:get_user(Addr, Port, Dir, UserName, AuthPwd);
-	{error, Reason} ->
-	    {error, Reason}
-    end.
-
-get_user(UserName, Port, Dir) ->
-    get_user(UserName, undefined, Port, Dir).
-get_user(UserName, Addr, Port, Dir) ->
-    mod_auth_server:get_user(Addr, Port, Dir, UserName, ?NOPASSWORD).
-
-
-%% add_group_member
-
-add_group_member(GroupName, UserName, Opt)->
-    case get_options(Opt, mandatory) of
-	{Addr, Port, Dir, AuthPwd}->
-	    mod_auth_server:add_group_member(Addr, Port, Dir, 
-					     GroupName, UserName, AuthPwd);
-	{error, Reason} ->
-	    {error, Reason}
-    end.
-
-add_group_member(GroupName, UserName, Port, Dir) ->
-    add_group_member(GroupName, UserName, undefined, Port, Dir).
-
-add_group_member(GroupName, UserName, Addr, Port, Dir) ->
-    mod_auth_server:add_group_member(Addr, Port, Dir, 
-				     GroupName, UserName, ?NOPASSWORD).
-
-
-%% delete_group_member
-
-delete_group_member(GroupName, UserName, Opt) ->
-    case get_options(Opt, mandatory) of
-	{Addr, Port, Dir, AuthPwd} ->
-	    mod_auth_server:delete_group_member(Addr, Port, Dir, 
-						GroupName, UserName, AuthPwd);
-	{error, Reason} ->
-	    {error, Reason}
-    end.
-
-delete_group_member(GroupName, UserName, Port, Dir) ->
-    delete_group_member(GroupName, UserName, undefined, Port, Dir).
-delete_group_member(GroupName, UserName, Addr, Port, Dir) ->
-    mod_auth_server:delete_group_member(Addr, Port, Dir, 
-					GroupName, UserName, ?NOPASSWORD).
-
-
-%% list_users
-
-list_users(Opt) ->
-    case get_options(Opt, mandatory) of
-	{Addr, Port, Dir, AuthPwd} ->
-	    mod_auth_server:list_users(Addr, Port, Dir, AuthPwd);
-	{error, Reason} ->
-	    {error, Reason}
-    end.
-
-list_users(Port, Dir) ->
-    list_users(undefined, Port, Dir).
-list_users(Addr, Port, Dir) ->
-    mod_auth_server:list_users(Addr, Port, Dir, ?NOPASSWORD).
-
-    
-%% delete_user
-
-delete_user(UserName, Opt) ->
-    case get_options(Opt, mandatory) of
-	{Addr, Port, Dir, AuthPwd} ->
-	    mod_auth_server:delete_user(Addr, Port, Dir, UserName, AuthPwd);
-	{error, Reason} ->
-	    {error, Reason}
-    end.
-
-delete_user(UserName, Port, Dir) ->
-    delete_user(UserName, undefined, Port, Dir).
-delete_user(UserName, Addr, Port, Dir) ->
-    mod_auth_server:delete_user(Addr, Port, Dir, UserName, ?NOPASSWORD).
-	  
-
-%% delete_group
-
-delete_group(GroupName, Opt) ->
-    case get_options(Opt, mandatory) of
-	{Addr, Port, Dir, AuthPwd} ->
-	    mod_auth_server:delete_group(Addr, Port, Dir, GroupName, AuthPwd);
-	{error, Reason} ->
-	    {error, Reason}
-    end.
-
-delete_group(GroupName, Port, Dir) ->
-    delete_group(GroupName, undefined, Port, Dir).
-delete_group(GroupName, Addr, Port, Dir) ->
-    mod_auth_server:delete_group(Addr, Port, Dir, GroupName, ?NOPASSWORD).
-
-
-%% list_groups
-
-list_groups(Opt) ->
-    case get_options(Opt, mandatory) of
-	{Addr, Port, Dir, AuthPwd} ->
-	    mod_auth_server:list_groups(Addr, Port, Dir, AuthPwd);
-	{error, Reason} ->
-	    {error, Reason}
-    end.
-
-list_groups(Port, Dir) ->
-    list_groups(undefined, Port, Dir).
-list_groups(Addr, Port, Dir) ->
-    mod_auth_server:list_groups(Addr, Port, Dir, ?NOPASSWORD).
-
-
-%% list_group_members
-
-list_group_members(GroupName, Opt) ->
-    case get_options(Opt, mandatory) of
-	{Addr, Port, Dir, AuthPwd} ->
-	    mod_auth_server:list_group_members(Addr, Port, Dir, GroupName, 
-					       AuthPwd);
-	{error, Reason} ->
-	    {error, Reason}
-    end.
-
-list_group_members(GroupName, Port, Dir) ->
-    list_group_members(GroupName, undefined, Port, Dir).
-list_group_members(GroupName, Addr, Port, Dir) ->
-    mod_auth_server:list_group_members(Addr, Port, Dir, 
-				       GroupName, ?NOPASSWORD).
-
 %% Opt = [{port, Port},
 %%        {addr, Addr},
 %%        {dir,  Dir},
@@ -792,7 +716,3 @@ get_options(Opt, userData)->
 		    {UserData, Pwd}
 	    end
     end.
-
-
-lookup(Db, Key) ->
-    ets:lookup(Db, Key).
diff --git a/lib/inets/src/http_server/mod_auth_dets.erl b/lib/inets/src/http_server/mod_auth_dets.erl
index a48725d5d9..4220f46166 100644
--- a/lib/inets/src/http_server/mod_auth_dets.erl
+++ b/lib/inets/src/http_server/mod_auth_dets.erl
@@ -38,23 +38,23 @@
 -include("httpd_internal.hrl").
 -include("mod_auth.hrl").
 
-store_directory_data(_Directory, DirData, Server_root) ->
-    ?CDEBUG("store_directory_data -> ~n"
-	    "     Directory: ~p~n"
-	    "     DirData:   ~p",
-	    [_Directory, DirData]),
+%%====================================================================
+%% Internal application API
+%%====================================================================	     
 
+store_directory_data(_Directory, DirData, Server_root) ->
     {PWFile, Absolute_pwdfile} = absolute_file_name(auth_user_file, DirData,
 						    Server_root),
     {GroupFile, Absolute_groupfile} = absolute_file_name(auth_group_file,
 							 DirData, Server_root),
     Addr = proplists:get_value(bind_address, DirData),
     Port = proplists:get_value(port, DirData),
+    Profile = proplists:get_value(profile, DirData, ?DEFAULT_PROFILE),
 
-    PWName  = httpd_util:make_name("httpd_dets_pwdb",Addr,Port),
+    PWName  = httpd_util:make_name("httpd_dets_pwdb", Addr, Port, Profile),
     case dets:open_file(PWName,[{type,set},{file,Absolute_pwdfile},{repair,true}]) of
 	{ok, PWDB} ->
-	    GDBName = httpd_util:make_name("httpd_dets_groupdb",Addr,Port),
+	    GDBName = httpd_util:make_name("httpd_dets_groupdb", Addr, Port, Profile),
 	    case dets:open_file(GDBName,[{type,set},{file,Absolute_groupfile},{repair,true}]) of
 		{ok, GDB} ->
 		    NDD1 = lists:keyreplace(auth_user_file, 1, DirData, 
@@ -69,11 +69,8 @@ store_directory_data(_Directory, DirData, Server_root) ->
 	    {error, {{file, PWFile},Err2}} 
     end.
 
-%%
 %% Storage format of users in the dets table:
 %% {{UserName, Addr, Port, Dir}, Password, UserData}
-%%
-
 add_user(DirData, UStruct) ->
     {Addr, Port, Dir} = lookup_common(DirData),
     PWDB = proplists:get_value(auth_user_file, DirData),
@@ -99,21 +96,15 @@ get_user(DirData, UserName) ->
     end.
 
 list_users(DirData) ->
-    ?DEBUG("list_users -> ~n"
-	   "     DirData: ~p", [DirData]),
     {Addr, Port, Dir} = lookup_common(DirData),
     PWDB = proplists:get_value(auth_user_file, DirData),
-    case dets:traverse(PWDB, fun(X) -> {continue, X} end) of    %% SOOOO Ugly !
+    case dets:traverse(PWDB, fun(X) -> {continue, X} end) of    
 	Records when is_list(Records) ->
-	    ?DEBUG("list_users -> ~n"
-		   "     Records: ~p", [Records]),
 	    {ok, [UserName || {{UserName, AnyAddr, AnyPort, AnyDir}, 
 			       _Password, _Data} <- Records,
 			      AnyAddr == Addr, AnyPort == Port, 
 			      AnyDir == Dir]};
 	_O ->
-	    ?DEBUG("list_users -> ~n"
-		   "     O: ~p", [_O]),
 	    {ok, []}
     end.
 
@@ -134,10 +125,8 @@ delete_user(DirData, UserName) ->
 	    {error, no_such_user}
     end.
 
-%%
 %% Storage of groups in the dets table:
 %% {Group, UserList} where UserList is a list of strings.
-%%
 add_group_member(DirData, GroupName, UserName) ->
     {Addr, Port, Dir} = lookup_common(DirData),
     GDB = proplists:get_value(auth_group_file, DirData),
@@ -215,16 +204,7 @@ delete_group(DirData, GroupName) ->
 	    {error, no_such_group}
     end.
 
-lookup_common(DirData) ->
-    Dir  = proplists:get_value(path, DirData),
-    Port = proplists:get_value(port, DirData),
-    Addr = proplists:get_value(bind_address, DirData),
-    {Addr, Port, Dir}.
-
-%% remove/1
-%%
 %% Closes dets tables used by this auth mod.
-%%
 remove(DirData) ->
     PWDB = proplists:get_value(auth_user_file, DirData),
     GDB = proplists:get_value(auth_group_file, DirData),
@@ -232,8 +212,9 @@ remove(DirData) ->
     dets:close(PWDB),
     ok.
 
-%% absolute_file_name/2
-%%
+%%--------------------------------------------------------------------
+%%% Internal functions
+%%--------------------------------------------------------------------
 %% Return the absolute path name of File_type. 
 absolute_file_name(File_type, DirData, Server_root) ->
     Path = proplists:get_value(File_type, DirData),
@@ -253,3 +234,8 @@ absolute_file_name(File_type, DirData, Server_root) ->
 		    end,
     {Path, Absolute_path}.
 
+lookup_common(DirData) ->
+    Dir  = proplists:get_value(path, DirData),
+    Port = proplists:get_value(port, DirData),
+    Addr = proplists:get_value(bind_address, DirData),
+    {Addr, Port, Dir}.
diff --git a/lib/inets/src/http_server/mod_auth_plain.erl b/lib/inets/src/http_server/mod_auth_plain.erl
index c0a83711ba..7bb86fc812 100644
--- a/lib/inets/src/http_server/mod_auth_plain.erl
+++ b/lib/inets/src/http_server/mod_auth_plain.erl
@@ -22,15 +22,11 @@
 -include("httpd.hrl").
 -include("mod_auth.hrl").
 -include("httpd_internal.hrl").
--include("inets_internal.hrl").
-
 
 -define(VMODULE,"AUTH_PLAIN").
 
 %% Internal API
 -export([store_directory_data/3]).
-
-
 -export([get_user/2, 
 	 list_group_members/2, 
 	 add_user/2, 
@@ -42,17 +38,13 @@
 	 delete_group/2, 
 	 remove/1]).
 
-%%
-%% API
-%%
+%%====================================================================
+%% Internal application API
+%%====================================================================	     
 
-%%
 %% Storage format of users in the ets table:
 %% {UserName, Password, UserData}
-%%
-
 add_user(DirData, #httpd_user{username = User} = UStruct) ->
-    ?hdrt("add user", [{user, UStruct}]),
     PWDB = proplists:get_value(auth_user_file, DirData),
     Record = {User,
 	      UStruct#httpd_user.password, 
@@ -66,7 +58,6 @@ add_user(DirData, #httpd_user{username = User} = UStruct) ->
     end.
 
 get_user(DirData, User) ->
-    ?hdrt("get user", [{dir_data, DirData}, {user, User}]),
     PWDB = proplists:get_value(auth_user_file, DirData),
     case ets:lookup(PWDB, User) of
 	[{User, PassWd, Data}] ->
@@ -84,7 +75,6 @@ list_users(DirData) ->
 		     [], lists:flatten(Records))}.
 
 delete_user(DirData, UserName) ->
-    ?hdrt("delete user", [{dir_data, DirData}, {user, UserName}]),
     PWDB = proplists:get_value(auth_user_file, DirData),
     case ets:lookup(PWDB, UserName) of
 	[{UserName, _SomePassword, _SomeData}] ->
@@ -98,11 +88,8 @@ delete_user(DirData, UserName) ->
 	    {error, no_such_user}
     end.
 
-%%
 %% Storage of groups in the ets table:
 %% {Group, UserList} where UserList is a list of strings.
-%%
-  
 add_group_member(DirData, Group, UserName) ->
     GDB = proplists:get_value(auth_group_file, DirData),
     case ets:lookup(GDB, Group) of
@@ -163,17 +150,12 @@ delete_group(DirData, Group) ->
     end.
 
 store_directory_data(_Directory, DirData, Server_root) ->
-    ?hdrt("store directory data", 
-	  [{dir_data, DirData}, {server_root, Server_root}]),
     PWFile = absolute_file_name(auth_user_file, DirData, Server_root),
     GroupFile = absolute_file_name(auth_group_file, DirData, Server_root),
     case load_passwd(PWFile) of
 	{ok, PWDB} ->
-	    ?hdrt("password file loaded", [{file, PWFile}, {pwdb, PWDB}]),
 	    case load_group(GroupFile) of
 		{ok, GRDB} ->
-		    ?hdrt("group file loaded", 
-			  [{file, GroupFile}, {grdb, GRDB}]),
 		    %% Address and port is included in the file names...
 		    Addr = proplists:get_value(bind_address, DirData),
 		    Port = proplists:get_value(port, DirData),
@@ -191,9 +173,83 @@ store_directory_data(_Directory, DirData, Server_root) ->
 	    {error, Err2}
     end.
 
+%% Deletes ets tables used by this auth mod.
+remove(DirData) ->
+    PWDB = proplists:get_value(auth_user_file, DirData),
+    GDB = proplists:get_value(auth_group_file, DirData),
+    ets:delete(PWDB),
+    ets:delete(GDB).
 
+%%--------------------------------------------------------------------
+%%% Internal functions
+%%--------------------------------------------------------------------
+%% Return the absolute path name of File_type. 
+absolute_file_name(File_type, DirData, Server_root) ->
+    Path = proplists:get_value(File_type, DirData),
+    case filename:pathtype(Path) of
+	relative ->
+	    case Server_root of
+		undefined ->
+		    {error,
+		     ?NICE(Path++
+			   " is an invalid file name because "
+			   "ServerRoot is not defined")};
+		_ ->
+		    filename:join(Server_root,Path)
+	    end;
+	_ ->
+	    Path
+    end.
 
-%% load_passwd
+store_group(Addr,Port,GroupList) ->
+    %% Not a named table so not importante to add Profile to name
+    Name = httpd_util:make_name("httpd_group",Addr,Port),
+    GroupDB = ets:new(Name, [set, public]),
+    store_group(GroupDB, GroupList).
+
+store_group(GroupDB,[]) ->
+    {ok, GroupDB};
+store_group(GroupDB, [User|Rest]) ->
+    ets:insert(GroupDB, User),
+    store_group(GroupDB, Rest).
+
+store_passwd(Addr,Port,PasswdList) ->
+    %% Not a named table so not importante to add Profile to name
+    Name = httpd_util:make_name("httpd_passwd",Addr,Port),
+    PasswdDB = ets:new(Name, [set, public]),
+    store_passwd(PasswdDB, PasswdList).
+
+store_passwd(PasswdDB, []) ->
+    {ok, PasswdDB};
+store_passwd(PasswdDB, [User|Rest]) ->
+    ets:insert(PasswdDB, User),
+    store_passwd(PasswdDB, Rest).
+
+parse_group(Stream, GroupList) ->
+    Line =
+	case io:get_line(Stream,'') of
+	    eof ->
+		eof;
+	    String ->
+		httpd_conf:clean(String)
+	end,
+    parse_group(Stream, GroupList, Line).
+
+parse_group(Stream, GroupList, eof) ->
+    file:close(Stream),
+    {ok, GroupList};
+parse_group(Stream, GroupList, "") ->
+    parse_group(Stream, GroupList);
+parse_group(Stream, GroupList, [$#|_]) ->
+    parse_group(Stream, GroupList);
+parse_group(Stream, GroupList, Line) ->      
+    case inets_regexp:split(Line, ":") of
+	{ok, [Group,Users]} ->
+	    {ok, UserList} = inets_regexp:split(Users," "),
+	    parse_group(Stream, [{Group,UserList}|GroupList]);
+	{ok, _} ->
+	    {error, ?NICE(Line)}
+    end.
 
 load_passwd(AuthUserFile) ->
     case file:open(AuthUserFile, [read]) of
@@ -228,8 +284,6 @@ parse_passwd(Stream, PasswdList, Line) ->
 	    {error, ?NICE(Line)}
     end.
 
-%% load_group
-
 load_group(AuthGroupFile) ->
     case file:open(AuthGroupFile, [read]) of
 	{ok, Stream} ->
@@ -237,91 +291,3 @@ load_group(AuthGroupFile) ->
 	{error, _} ->
 	    {error, ?NICE("Can't open " ++ AuthGroupFile)}
     end.
-
-parse_group(Stream, GroupList) ->
-    Line =
-	case io:get_line(Stream,'') of
-	    eof ->
-		eof;
-	    String ->
-		httpd_conf:clean(String)
-	end,
-    parse_group(Stream, GroupList, Line).
-
-parse_group(Stream, GroupList, eof) ->
-    file:close(Stream),
-    {ok, GroupList};
-parse_group(Stream, GroupList, "") ->
-    parse_group(Stream, GroupList);
-parse_group(Stream, GroupList, [$#|_]) ->
-    parse_group(Stream, GroupList);
-parse_group(Stream, GroupList, Line) ->      
-    case inets_regexp:split(Line, ":") of
-	{ok, [Group,Users]} ->
-	    {ok, UserList} = inets_regexp:split(Users," "),
-	    parse_group(Stream, [{Group,UserList}|GroupList]);
-	{ok, _} ->
-	    {error, ?NICE(Line)}
-    end.
-
-
-%% store_passwd
-
-store_passwd(Addr,Port,PasswdList) ->
-    Name = httpd_util:make_name("httpd_passwd",Addr,Port),
-    PasswdDB = ets:new(Name, [set, public]),
-    store_passwd(PasswdDB, PasswdList).
-
-store_passwd(PasswdDB, []) ->
-    {ok, PasswdDB};
-store_passwd(PasswdDB, [User|Rest]) ->
-    ets:insert(PasswdDB, User),
-    store_passwd(PasswdDB, Rest).
-
-%% store_group
-
-store_group(Addr,Port,GroupList) ->
-    Name = httpd_util:make_name("httpd_group",Addr,Port),
-    GroupDB = ets:new(Name, [set, public]),
-    store_group(GroupDB, GroupList).
-
-
-store_group(GroupDB,[]) ->
-    {ok, GroupDB};
-store_group(GroupDB, [User|Rest]) ->
-    ets:insert(GroupDB, User),
-    store_group(GroupDB, Rest).
-
-
-%% remove/1
-%%
-%% Deletes ets tables used by this auth mod.
-%%
-remove(DirData) ->
-    PWDB = proplists:get_value(auth_user_file, DirData),
-    GDB = proplists:get_value(auth_group_file, DirData),
-    ets:delete(PWDB),
-    ets:delete(GDB).
-
-
-
-%% absolute_file_name/2
-%%
-%% Return the absolute path name of File_type. 
-absolute_file_name(File_type, DirData, Server_root) ->
-    Path = proplists:get_value(File_type, DirData),
-    case filename:pathtype(Path) of
-	relative ->
-	    case Server_root of
-		undefined ->
-		    {error,
-		     ?NICE(Path++
-			   " is an invalid file name because "
-			   "ServerRoot is not defined")};
-		_ ->
-		    filename:join(Server_root,Path)
-	    end;
-	_ ->
-	    Path
-    end.
-
diff --git a/lib/inets/src/http_server/mod_auth_server.erl b/lib/inets/src/http_server/mod_auth_server.erl
index 947273bd9e..2a45f402d7 100644
--- a/lib/inets/src/http_server/mod_auth_server.erl
+++ b/lib/inets/src/http_server/mod_auth_server.erl
@@ -22,246 +22,184 @@
 
 -include("httpd.hrl").
 -include("httpd_internal.hrl").
--include("inets_internal.hrl").
 
 -behaviour(gen_server).
 
-
 %% mod_auth exports 
--export([start/2, stop/2, 
+-export([start/3, stop/3, 
 	 add_password/4, update_password/5, 
 	 add_user/5, delete_user/5, get_user/5, list_users/4, 
 	 add_group_member/6, delete_group_member/6, list_group_members/5, 
 	 delete_group/5, list_groups/4]).
 
 %% gen_server exports
--export([start_link/2, init/1,
+-export([start_link/3, init/1,
 	 handle_call/3, handle_cast/2, handle_info/2,
 	 terminate/2, code_change/3]).
 
 -record(state, {tab}).
 
+%%====================================================================
+%% Internal application API
+%%====================================================================	     
 
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%%                                                                  %%
-%% External API                                                     %%
-%%                                                                  %%
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-%% start_link/3
-%% 
 %% NOTE: This is called by httpd_misc_sup when the process is started
 %% 
-start_link(Addr, Port) ->
-    ?hdrt("start_link", [{address, Addr}, {port, Port}]),
-    Name = make_name(Addr, Port),
+start_link(Addr, Port, Profile) ->
+    Name = make_name(Addr, Port, Profile),
     gen_server:start_link({local, Name}, ?MODULE, [], [{timeout, infinity}]).
 
-
-%% start/2
-
-start(Addr, Port) ->
-    ?hdrd("start", [{address, Addr}, {port, Port}]),
-    Name = make_name(Addr, Port),
+start(Addr, Port, Profile) ->
+    Name = make_name(Addr, Port, Profile),
     case whereis(Name) of
 	undefined ->
-	    httpd_misc_sup:start_auth_server(Addr, Port);
+	    httpd_misc_sup:start_auth_server(Addr, Port, Profile);
 	_ -> %% Already started...
 	    ok
     end.
 
-
-%% stop/2
-
-stop(Addr, Port) ->
-    ?hdrd("stop", [{address, Addr}, {port, Port}]),
-    Name = make_name(Addr, Port),
+stop(Addr, Port, Profile) ->
+    Name = make_name(Addr, Port, Profile),
     case whereis(Name) of
 	undefined -> %% Already stopped
 	    ok;
 	_ ->
-           (catch httpd_misc_sup:stop_auth_server(Addr, Port))
+           (catch httpd_misc_sup:stop_auth_server(Addr, Port, Profile))
     end.
 
-%% add_password/4
-
 add_password(Addr, Port, Dir, Password) ->
-    ?hdrt("add password", [{address, Addr}, {port, Port}]),
-    Name = make_name(Addr, Port),
+    add_password(Addr, Port, ?DEFAULT_PROFILE, Dir, Password).
+add_password(Addr, Port, Profile, Dir, Password) ->
+    Name = make_name(Addr, Port, Profile),
     Req  = {add_password, Dir, Password},
     call(Name, Req).
 
-
-%% update_password/6
-
-update_password(Addr, Port, Dir, Old, New) when is_list(New) ->
-    ?hdrt("update password", 
-	  [{address, Addr}, {port, Port}, {dir, Dir}, {old, Old}, {new, New}]),
-    Name = make_name(Addr, Port),
+update_password(Addr, Port, Dir, Old, New) ->
+    update_password(Addr, Port, ?DEFAULT_PROFILE, Dir, Old, New).
+update_password(Addr, Port, Profile, Dir, Old, New) when is_list(New) ->
+    Name = make_name(Addr, Port, Profile),
     Req  = {update_password, Dir, Old, New},
     call(Name, Req).
-	   
- 
-%% add_user/5
 
 add_user(Addr, Port, Dir, User, Password) ->
-    ?hdrt("add user", 
-	  [{address, Addr}, {port, Port}, 
-	   {dir, Dir}, {user, User}, {passwd, Password}]),
-    Name = make_name(Addr, Port),
-    Req  = {add_user, Addr, Port, Dir, User, Password},
+    add_user(Addr, Port, ?DEFAULT_PROFILE, Dir, User, Password).
+add_user(Addr, Port, Profile, Dir, User, Password) ->
+    Name = make_name(Addr, Port, Profile),
+    Req  = {add_user, Addr, Port, Profile, Dir, User, Password},
     call(Name, Req).
 
-
-%% delete_user/5
-
 delete_user(Addr, Port, Dir, UserName, Password) ->
-    ?hdrt("delete user", 
-	  [{address, Addr}, {port, Port}, 
-	   {dir, Dir}, {user, UserName}, {passwd, Password}]),
-    Name = make_name(Addr, Port),
-    Req  = {delete_user, Addr, Port, Dir, UserName, Password},
+    delete_user(Addr, Port, ?DEFAULT_PROFILE, Dir, UserName, Password).
+delete_user(Addr, Port, Profile, Dir, UserName, Password) ->
+    Name = make_name(Addr, Port, Profile),
+    Req  = {delete_user, Addr, Port, Profile, Dir, UserName, Password},
     call(Name, Req).
 
-
-%% get_user/5
-
 get_user(Addr, Port, Dir, UserName, Password) ->
-    ?hdrt("get user", 
-	  [{address, Addr}, {port, Port}, 
-	   {dir, Dir}, {user, UserName}, {passwd, Password}]),
-    Name = make_name(Addr, Port),
-    Req  = {get_user, Addr, Port, Dir, UserName, Password},
+    get_user(Addr, Port, ?DEFAULT_PROFILE, Dir, UserName, Password).
+get_user(Addr, Port, Profile,Dir, UserName, Password) ->
+    Name = make_name(Addr, Port, Profile),
+    Req  = {get_user, Addr, Port, Profile, Dir, UserName, Password},
     call(Name, Req).
 
-
-%% list_users/4
-
 list_users(Addr, Port, Dir, Password) ->
-    ?hdrt("list users", 
-	  [{address, Addr}, {port, Port}, {dir, Dir}, {passwd, Password}]),
-    Name = make_name(Addr,Port),
-    Req  = {list_users, Addr, Port, Dir, Password},
+    list_users(Addr, Port, ?DEFAULT_PROFILE, Dir, Password).
+list_users(Addr, Port, Profile, Dir, Password) ->
+    Name = make_name(Addr,Port, Profile),
+    Req  = {list_users, Addr, Port, Profile, Dir, Password},
     call(Name, Req).
 
-
-%% add_group_member/6
-
 add_group_member(Addr, Port, Dir, GroupName, UserName, Password) ->
-    ?hdrt("add group member", 
-	  [{address, Addr}, {port, Port}, {dir, Dir}, 
-	   {group, GroupName}, {user, UserName}, {passwd, Password}]),
-    Name = make_name(Addr,Port),
-    Req  = {add_group_member, Addr, Port, Dir, GroupName, UserName, Password},
+    add_group_member(Addr, Port, ?DEFAULT_PROFILE, Dir, GroupName, UserName, Password).
+add_group_member(Addr, Port, Profile, Dir, GroupName, UserName, Password) ->
+    Name = make_name(Addr,Port, Profile),
+    Req  = {add_group_member, Addr, Port, Profile, Dir, GroupName, UserName, Password},
     call(Name, Req).
 
-
-%% delete_group_member/6
-
 delete_group_member(Addr, Port, Dir, GroupName, UserName, Password) ->
-    ?hdrt("delete group member", 
-	  [{address, Addr}, {port, Port}, {dir, Dir}, 
-	   {group, GroupName}, {user, UserName}, {passwd, Password}]),
-    Name = make_name(Addr,Port),
-    Req  = {delete_group_member, Addr, Port, Dir, GroupName, UserName, Password},
+    delete_group_member(Addr, Port, ?DEFAULT_PROFILE, Dir, GroupName, UserName, Password).
+delete_group_member(Addr, Port, Profile, Dir, GroupName, UserName, Password) ->
+    Name = make_name(Addr,Port,Profile),
+    Req  = {delete_group_member, Addr, Port, Profile, Dir, GroupName, UserName, Password},
     call(Name, Req).
 
-
-%% list_group_members/4
-
 list_group_members(Addr, Port, Dir, Group, Password) ->
-    ?hdrt("list group members", 
-	  [{address, Addr}, {port, Port}, {dir, Dir}, 
-	   {group, Group}, {passwd, Password}]),
-    Name = make_name(Addr, Port),
+    list_group_members(Addr, Port, ?DEFAULT_PROFILE, Dir, Group, Password).
+list_group_members(Addr, Port, Profile, Dir, Group, Password) ->
+    Name = make_name(Addr, Port, Profile),
     Req  = {list_group_members, Addr, Port, Dir, Group, Password},
     call(Name, Req).
 
-
-%% delete_group/5
-
 delete_group(Addr, Port, Dir, GroupName, Password) ->
-    ?hdrt("delete group", 
-	  [{address, Addr}, {port, Port}, {dir, Dir}, 
-	   {group, GroupName}, {passwd, Password}]),
-    Name = make_name(Addr, Port),
-    Req  = {delete_group, Addr, Port, Dir, GroupName, Password},
+    delete_group(Addr, Port, ?DEFAULT_PROFILE, Dir, GroupName, Password).
+delete_group(Addr, Port, Profile, Dir, GroupName, Password) ->
+    Name = make_name(Addr, Port, Profile),
+    Req  = {delete_group, Addr, Port, Profile, Dir, GroupName, Password},
     call(Name, Req).
 
-
-%% list_groups/4
-
 list_groups(Addr, Port, Dir, Password) ->
-    ?hdrt("list groups", 
-	  [{address, Addr}, {port, Port}, {dir, Dir}, {passwd, Password}]),
-    Name = make_name(Addr, Port),
-    Req  = {list_groups, Addr, Port, Dir, Password},
+    list_groups(Addr, Port, ?DEFAULT_PROFILE, Dir, Password).
+list_groups(Addr, Port, Profile, Dir, Password) ->
+    Name = make_name(Addr, Port, Profile),
+    Req  = {list_groups, Addr, Port,Profile, Dir, Password},
     call(Name, Req).
 
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%%                                                                  %%
-%% Server call-back functions                                       %%
-%%                                                                  %%
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-%% init
-
+%%====================================================================
+%% Behavior call backs
+%%====================================================================	     
 init(_) ->
-    ?hdrv("initiating", []),
     {ok,#state{tab = ets:new(auth_pwd,[set,protected])}}.
 
 %% handle_call
 
 %% Add a user
-handle_call({add_user, Addr, Port, Dir, User, AuthPwd}, _From, State) ->
-    Reply = api_call(Addr, Port, Dir, add_user, User, AuthPwd, State),
-    ?hdrt("add user", [{reply, Reply}]),
+handle_call({add_user, Addr, Port, Profile, Dir, User, AuthPwd}, _From, State) ->
+    Reply = api_call(Addr, Port, Profile, Dir, add_user, User, AuthPwd, State),
     {reply, Reply, State};
 
 %% Get data about a user
-handle_call({get_user, Addr, Port, Dir, User, AuthPwd}, _From, State) ->
-    Reply = api_call(Addr, Port, Dir, get_user, [User], AuthPwd, State),
+handle_call({get_user, Addr, Port, Profile, Dir, User, AuthPwd}, _From, State) ->
+    Reply = api_call(Addr, Port, Profile, Dir, get_user, [User], AuthPwd, State),
     {reply, Reply, State};
 
 %% Add a group member
-handle_call({add_group_member, Addr, Port, Dir, Group, User, AuthPwd},
+handle_call({add_group_member, Addr, Port, Profile, Dir, Group, User, AuthPwd},
 	    _From, State) ->
-    Reply = api_call(Addr, Port, Dir, add_group_member, [Group, User], 
+    Reply = api_call(Addr, Port, Profile, Dir, add_group_member, [Group, User], 
 		     AuthPwd, State),
     {reply, Reply, State};
 
 %% delete a group
-handle_call({delete_group_member, Addr, Port, Dir, Group, User, AuthPwd},
+handle_call({delete_group_member, Addr, Port, Profile, Dir, Group, User, AuthPwd},
 	    _From, State) ->
-    Reply = api_call(Addr, Port, Dir, delete_group_member, [Group, User], 
+    Reply = api_call(Addr, Port, Profile, Dir, delete_group_member, [Group, User], 
 		     AuthPwd, State), 
     {reply, Reply, State};
 
 %% List all users thats standalone users
-handle_call({list_users, Addr, Port, Dir, AuthPwd}, _From, State) ->
-    Reply = api_call(Addr, Port, Dir, list_users, [], AuthPwd, State),
+handle_call({list_users, Addr, Port, Profile, Dir, AuthPwd}, _From, State) ->
+    Reply = api_call(Addr, Port, Profile, Dir, list_users, [], AuthPwd, State),
     {reply, Reply, State};
 
 %% Delete a user
-handle_call({delete_user, Addr, Port, Dir, User, AuthPwd}, _From, State) ->
-    Reply = api_call(Addr, Port, Dir, delete_user, [User], AuthPwd, State),
+handle_call({delete_user, Addr, Port, Profile, Dir, User, AuthPwd}, _From, State) ->
+    Reply = api_call(Addr, Port, Profile, Dir, delete_user, [User], AuthPwd, State),
     {reply, Reply, State};
 
 %% Delete a group
-handle_call({delete_group, Addr, Port, Dir, Group, AuthPwd}, _From, State) ->
-    Reply = api_call(Addr, Port, Dir, delete_group, [Group], AuthPwd, State),
+handle_call({delete_group, Addr, Port, Profile, Dir, Group, AuthPwd}, _From, State) ->
+    Reply = api_call(Addr, Port, Profile, Dir, delete_group, [Group], AuthPwd, State),
     {reply, Reply, State};
 
 %% List the current groups
-handle_call({list_groups, Addr, Port, Dir, AuthPwd}, _From, State) ->
-    Reply = api_call(Addr, Port, Dir, list_groups, [], AuthPwd, State),
+handle_call({list_groups, Addr, Port, Profile, Dir, AuthPwd}, _From, State) ->
+    Reply = api_call(Addr, Port, Profile, Dir, list_groups, [], AuthPwd, State),
     {reply, Reply, State};
 
 %% List the members of the given group
-handle_call({list_group_members, Addr, Port, Dir, Group, AuthPwd},
+handle_call({list_group_members, Addr, Port, Profile, Dir, Group, AuthPwd},
 	    _From, State) ->
-    Reply = api_call(Addr, Port, Dir, list_group_members, [Group],
+    Reply = api_call(Addr, Port, Profile, Dir, list_group_members, [Group],
 		     AuthPwd, State), 
     {reply, Reply, State};
 
@@ -306,26 +244,16 @@ terminate(_Reason,State) ->
     ets:delete(State#state.tab),
     ok.
 
-
-%% code_change(Vsn, State, Extra)
-%%
 code_change(_Vsn, State, _Extra) ->
     {ok, State}.
 
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%%                                                                  %%
-%% The functions that really changes the data in the database       %%
-%% of users to different directories                                %%
-%%                                                                  %%
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
-
-%% API gateway
-
-api_call(Addr, Port, Dir, Func, Args,Password,State) ->
+%%--------------------------------------------------------------------
+%%% Internal functions
+%%--------------------------------------------------------------------
+api_call(Addr, Port, Profile, Dir, Func, Args,Password,State) ->
     case controlPassword(Password, State, Dir) of
 	ok->
-	    ConfigName = httpd_util:make_name("httpd_conf", Addr, Port),
+	    ConfigName = httpd_util:make_name("httpd_conf", Addr, Port, Profile),
 	    case ets:match_object(ConfigName, {directory, {Dir, '$1'}}) of
 		[{directory, {Dir, DirData}}] ->
 		    AuthMod = auth_mod_name(DirData),
@@ -386,8 +314,8 @@ lookup(Db, Key) ->
     ets:lookup(Db, Key).
 
 
-make_name(Addr,Port) ->
-    httpd_util:make_name("httpd_auth",Addr,Port).
+make_name(Addr, Port, Profile) ->
+    httpd_util:make_name(?MODULE, Addr, Port, Profile).
 
 
 call(Name, Req) ->
@@ -397,5 +325,3 @@ call(Name, Req) ->
 	Reply ->
 	    Reply
     end.
-    
-
diff --git a/lib/inets/src/http_server/mod_include.erl b/lib/inets/src/http_server/mod_include.erl
deleted file mode 100644
index 35f45bdd33..0000000000
--- a/lib/inets/src/http_server/mod_include.erl
+++ /dev/null
@@ -1,598 +0,0 @@
-%%
-%% %CopyrightBegin%
-%% 
-%% Copyright Ericsson AB 1997-2010. All Rights Reserved.
-%% 
-%% The contents of this file are subject to the Erlang Public License,
-%% Version 1.1, (the "License"); you may not use this file except in
-%% compliance with the License. You should have received a copy of the
-%% Erlang Public License along with this software. If not, it can be
-%% retrieved online at http://www.erlang.org/.
-%% 
-%% Software distributed under the License is distributed on an "AS IS"
-%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-%% the License for the specific language governing rights and limitations
-%% under the License.
-%% 
-%% %CopyrightEnd%
-%%
-%%
--module(mod_include).
--export([do/1,parse/2,config/6,include/6,echo/6,fsize/6,flastmod/6,exec/6]).
-
--include("httpd.hrl").
--include("httpd_internal.hrl").
-
--define(VMODULE,"INCLUDE").
-
-%% do
-
-do(Info) ->
-    case Info#mod.method of
-	"GET" ->
-	    case proplists:get_value(status, Info#mod.data) of
-		%% A status code has been generated!
-		{_StatusCode, _PhraseArgs, _Reason} ->
-		    {proceed,Info#mod.data};
-		%% No status code has been generated!
-		undefined ->
-		    case proplists:get_value(response, Info#mod.data) of
-			%% No response has been generated!
-			undefined ->
-			    do_include(Info);
-			%% A response has been generated or sent!
-			_Response ->
-			    {proceed,Info#mod.data}
-		    end
-	    end;
-	%% Not a GET method!
-	_ ->
-	    {proceed,Info#mod.data}
-    end.
-
-do_include(Info) ->
-    Path = mod_alias:path(Info#mod.data,Info#mod.config_db,
-			  Info#mod.request_uri),
-    Suffix = httpd_util:suffix(Path),
-    case httpd_util:lookup_mime_default(Info#mod.config_db,Suffix) of
-	"text/x-server-parsed-html" ->
-	    HeaderStart = [{content_type, "text/html"}], 
-	    case send_in(Info, Path, HeaderStart, file:read_file_info(Path)) of
-		{ok, ErrorLog, Size} ->
-		    {proceed, [{response, {already_sent, 200, Size}},
-			       {mime_type, "text/html"} |
-			       lists:append(ErrorLog, Info#mod.data)]};
-		{error, Reason} ->
-		    {proceed,
-		     [{status,send_error(Reason,Info,Path)}|Info#mod.data]}
-	    end;
-	_ -> %% Unknown mime type, ignore
-	    {proceed,Info#mod.data}
-    end.
-
-
-%%
-%% config directive
-%%
-
-config(_Info, Context, ErrorLog, TagList, ValueList, R) ->
-    case verify_tags("config",[errmsg,timefmt,sizefmt],
-		     TagList,ValueList) of
-	ok ->
-	    {ok,update_context(TagList,ValueList,Context),ErrorLog,"",R};
-	{error,Reason} ->
-	    {ok,Context,[{internal_info,Reason}|ErrorLog],
-	     proplists:get_value(errmsg,Context,""),R}
-    end.
-
-update_context([],[],Context) ->
-    Context;
-update_context([Tag|R1],[Value|R2],Context) ->
-    update_context(R1,R2,[{Tag,Value}|Context]).
-
-verify_tags(Command,ValidTags,TagList,ValueList) 
-  when length(TagList) =:= length(ValueList) ->
-    verify_tags(Command, ValidTags, TagList);
-verify_tags(Command, _ValidTags, _TagList, _ValueList) ->
-    {error, ?NICE(Command ++ " directive has spurious tags")}.
-
-verify_tags(_Command, _ValidTags, []) ->
-    ok;
-verify_tags(Command, ValidTags, [Tag|Rest]) ->
-    case lists:member(Tag, ValidTags) of
-	true ->
-	    verify_tags(Command, ValidTags, Rest);
-	false ->
-	    {error, ?NICE(Command++" directive has a spurious tag ("++
-			 atom_to_list(Tag)++")")}
-    end.
-
-%%
-%% include directive
-%%
-
-include(Info,Context,ErrorLog,[virtual],[VirtualPath],R) ->
-    Aliases = httpd_util:multi_lookup(Info#mod.config_db,alias),
-    {_, Path, _AfterPath} =
-	mod_alias:real_name(Info#mod.config_db, VirtualPath, Aliases),
-    include(Info,Context,ErrorLog,R,Path);
-include(Info, Context, ErrorLog, [file], [FileName], R) ->
-    Path = file(Info#mod.config_db, Info#mod.request_uri, FileName),
-    include(Info, Context, ErrorLog, R, Path);
-include(_Info, Context, ErrorLog, _TagList, _ValueList, R) ->
-    {ok, Context,
-     [{internal_info,?NICE("include directive has a spurious tag")}|
-      ErrorLog], proplists:get_value(errmsg, Context, ""), R}.
-
-include(Info, Context, ErrorLog, R, Path) ->
-    case file:read_file(Path) of
-	{ok, Body} ->
-	    {ok, NewContext, NewErrorLog, Result} =
-		parse(Info, binary_to_list(Body), Context, ErrorLog, []),
-	    {ok, NewContext, NewErrorLog, Result, R};
-	{error, _Reason} ->
-	    {ok, Context, 
-	     [{internal_info, ?NICE("Can't open "++Path)}|ErrorLog],
-	     proplists:get_value(errmsg, Context, ""), R}
-    end.
-
-file(ConfigDB, RequestURI, FileName) ->
-    Aliases = httpd_util:multi_lookup(ConfigDB, alias),
-    {_, Path, _AfterPath}
-	= mod_alias:real_name(ConfigDB, RequestURI, Aliases),
-    Pwd = filename:dirname(Path),
-    filename:join(Pwd, FileName).
-
-%%
-%% echo directive
-%%
-
-echo(Info,Context,ErrorLog,[var],["DOCUMENT_NAME"],R) ->
-    {ok,Context,ErrorLog,document_name(Info#mod.data,Info#mod.config_db,
-				       Info#mod.request_uri),R};
-echo(Info,Context,ErrorLog,[var],["DOCUMENT_URI"],R) ->
-    {ok,Context,ErrorLog,document_uri(Info#mod.config_db,
-				      Info#mod.request_uri),R};
-echo(Info,Context,ErrorLog,[var],["QUERY_STRING_UNESCAPED"],R) ->
-    {ok,Context,ErrorLog,query_string_unescaped(Info#mod.request_uri),R};
-echo(_Info,Context,ErrorLog,[var],["DATE_LOCAL"],R) ->
-    {ok,Context,ErrorLog,date_local(),R};
-echo(_Info,Context,ErrorLog,[var],["DATE_GMT"],R) ->
-    {ok,Context,ErrorLog,date_gmt(),R};
-echo(Info,Context,ErrorLog,[var],["LAST_MODIFIED"],R) ->
-    {ok,Context,ErrorLog,last_modified(Info#mod.data,Info#mod.config_db,
-				       Info#mod.request_uri),R};
-echo(_Info, Context, ErrorLog, _TagList, _ValueList, R) ->
-    {ok,Context,
-     [{internal_info,?NICE("echo directive has a spurious tag")}|
-      ErrorLog],"(none)",R}.
-
-document_name(Data,ConfigDB,RequestURI) ->
-    Path = mod_alias:path(Data,ConfigDB,RequestURI),
-    case inets_regexp:match(Path,"[^/]*\$") of
-	{match,Start,Length} ->
-	    string:substr(Path,Start,Length);
-	nomatch ->
-	    "(none)"
-    end.
-
-document_uri(ConfigDB, RequestURI) ->
-    Aliases = httpd_util:multi_lookup(ConfigDB, alias),
-    
-    {_, Path, AfterPath}  = mod_alias:real_name(ConfigDB, RequestURI, Aliases),
-    
-    VirtualPath = string:substr(RequestURI, 1, 
-				length(RequestURI)-length(AfterPath)),
-    {match, Start, Length} = inets_regexp:match(Path,"[^/]*\$"),
-    FileName = string:substr(Path,Start,Length),
-    case inets_regexp:match(VirtualPath, FileName++"\$") of
-	{match, _, _} ->
-	    http_uri:decode(VirtualPath)++AfterPath;
-	nomatch ->
-	    string:strip(http_uri:decode(VirtualPath),right,$/)++
-		"/"++FileName++AfterPath
-    end.
-
-query_string_unescaped(RequestURI) ->
-  case inets_regexp:match(RequestURI,"[\?].*\$") of
-    {match,Start,Length} ->
-      %% Escape all shell-special variables with \
-      escape(string:substr(RequestURI,Start+1,Length-1));      
-    nomatch ->
-      "(none)"
-  end.
-
-escape([]) -> [];
-escape([$;|R]) -> [$\\,$;|escape(R)];
-escape([$&|R]) -> [$\\,$&|escape(R)];
-escape([$(|R]) -> [$\\,$(|escape(R)];
-escape([$)|R]) -> [$\\,$)|escape(R)];
-escape([$||R]) -> [$\\,$||escape(R)];
-escape([$^|R]) -> [$\\,$^|escape(R)];
-escape([$<|R]) -> [$\\,$<|escape(R)];
-escape([$>|R]) -> [$\\,$>|escape(R)];
-escape([$\n|R]) -> [$\\,$\n|escape(R)];
-escape([$ |R]) -> [$\\,$ |escape(R)];
-escape([$\t|R]) -> [$\\,$\t|escape(R)];
-escape([C|R]) -> [C|escape(R)].
-
-date_local() ->
-  {{Year,Month,Day},{Hour,Minute,Second}}=calendar:local_time(),
-  %% Time format hard-wired to: "%a %b %e %T %Y" according to strftime(3)
-  io_lib:format("~s ~s ~2w ~2.2.0w:~2.2.0w:~2.2.0w ~w",
-		[httpd_util:day(calendar:day_of_the_week(Year,Month,Day)),
-		 httpd_util:month(Month),Day,Hour,Minute,Second,Year]).
-
-date_gmt() ->
-  {{Year,Month,Day},{Hour,Minute,Second}}=calendar:universal_time(),
-  %% Time format hard-wired to: "%a %b %e %T %Z %Y" according to strftime(3)
-  io_lib:format("~s ~s ~2w ~2.2.0w:~2.2.0w:~2.2.0w GMT ~w",
-		[httpd_util:day(calendar:day_of_the_week(Year,Month,Day)),
-		 httpd_util:month(Month),Day,Hour,Minute,Second,Year]).
-
-last_modified(Data,ConfigDB,RequestURI) ->
-  {ok,FileInfo}=file:read_file_info(mod_alias:path(Data,ConfigDB,RequestURI)),
-  {{Year,Month,Day},{Hour,Minute,Second}}=FileInfo#file_info.mtime,
-  io_lib:format("~s ~s ~2w ~2.2.0w:~2.2.0w:~2.2.0w ~w",
-		[httpd_util:day(calendar:day_of_the_week(Year,Month,Day)),
-		 httpd_util:month(Month),Day,Hour,Minute,Second,Year]).
-
-%%
-%% fsize directive
-%%
-
-fsize(Info,Context,ErrorLog,[virtual],[VirtualPath],R) ->
-  Aliases = httpd_util:multi_lookup(Info#mod.config_db,alias),
-  {_,Path, _AfterPath}=
-    mod_alias:real_name(Info#mod.config_db,VirtualPath,Aliases),
-  fsize(Info, Context, ErrorLog, R, Path);
-fsize(Info,Context,ErrorLog,[file],[FileName],R) ->
-  Path = file(Info#mod.config_db,Info#mod.request_uri,FileName),
-  fsize(Info,Context,ErrorLog,R,Path);
-fsize(_Info, Context, ErrorLog, _TagList, _ValueList, R) ->
-  {ok,Context,[{internal_info,?NICE("fsize directive has a spurious tag")}|
-	       ErrorLog],proplists:get_value(errmsg,Context,""),R}.
-
-fsize(_Info, Context, ErrorLog, R, Path) ->
-    case file:read_file_info(Path) of
-	{ok,FileInfo} ->
-	    case proplists:get_value(sizefmt,Context) of
-		"bytes" ->
-		    {ok,Context,ErrorLog,
-		     integer_to_list(FileInfo#file_info.size),R};
-		"abbrev" ->
-		    Size = integer_to_list(trunc(FileInfo#file_info.size/1024+1))++"k",
-		    {ok,Context,ErrorLog,Size,R};
-		Value->
-		    {ok,Context,
-		     [{internal_info,
-		       ?NICE("fsize directive has a spurious tag value ("++
-			     Value++")")}|
-		      ErrorLog],
-		     proplists:get_value(errmsg, Context, ""), R}
-	    end;
-	{error, _Reason} ->
-	    {ok,Context,[{internal_info,?NICE("Can't open "++Path)}|ErrorLog],
-	     proplists:get_value(errmsg,Context,""),R}
-    end.
-
-%%
-%% flastmod directive
-%%
-
-flastmod(#mod{config_db = Db} = Info, 
-	 Context, ErrorLog, [virtual], [VirtualPath],R) ->
-    Aliases = httpd_util:multi_lookup(Db,alias),
-    {_,Path, _AfterPath} = mod_alias:real_name(Db, VirtualPath, Aliases),
-    flastmod(Info,Context,ErrorLog,R,Path);
-flastmod(#mod{config_db = Db, request_uri = RequestUri} = Info, 
-	 Context, ErrorLog, [file], [FileName], R) ->
-    Path = file(Db, RequestUri, FileName),
-    flastmod(Info, Context, ErrorLog, R, Path);
-flastmod(_Info, Context, ErrorLog, _TagList, _ValueList, R) ->
-    {ok,Context,
-     [{internal_info,?NICE("flastmod directive has a spurious tag")}|
-      ErrorLog],proplists:get_value(errmsg,Context,""),R}.
-
-flastmod(_Info, Context, ErrorLog, R, File) ->
-    case file:read_file_info(File) of
-	{ok, FileInfo} ->
-	    {{Yr,Mon,Day},{Hour,Minute,Second}}=FileInfo#file_info.mtime,
-	    Result =
-		io_lib:format("~s ~s ~2w ~w:~w:~w ~w",
-			      [httpd_util:day(
-				 calendar:day_of_the_week(Yr,Mon, Day)),
-			       httpd_util:month(Mon),Day,Hour,Minute,Second, Yr]),
-	    {ok, Context, ErrorLog, Result, R};
-	{error, _Reason} ->
-	    {ok,Context,[{internal_info,?NICE("Can't open "++File)}|ErrorLog],
-	     proplists:get_value(errmsg,Context,""),R}
-    end.
-
-%%
-%% exec directive
-%%
-
-exec(Info,Context,ErrorLog,[cmd],[Command],R) ->
-    cmd(Info,Context,ErrorLog,R,Command);
-exec(Info,Context,ErrorLog,[cgi],[RequestURI],R) ->
-    cgi(Info,Context,ErrorLog,R,RequestURI);
-exec(_Info, Context, ErrorLog, _TagList, _ValueList, R) ->
-    {ok, Context,
-     [{internal_info,?NICE("exec directive has a spurious tag")}|
-      ErrorLog], proplists:get_value(errmsg,Context,""),R}.
-
-%% cmd
-
-cmd(Info, Context, ErrorLog, R, Command) ->
-    process_flag(trap_exit,true),    
-    Env  = env(Info),
-    Dir  = filename:dirname(Command),
-    Port = (catch open_port({spawn,Command},[stream,{cd,Dir},{env,Env}])),
-    case Port of
-	P when is_port(P) ->
-	    {NewErrorLog, Result} = proxy(Port, ErrorLog),
-	    {ok, Context, NewErrorLog, Result, R};
-	{'EXIT', Reason} ->
-	    exit({open_port_failed,Reason,
-		  [{uri,Info#mod.request_uri},{script,Command},
-		   {env,Env},{dir,Dir}]});
-	O ->
-	    exit({open_port_failed,O,
-		  [{uri,Info#mod.request_uri},{script,Command},
-		   {env,Env},{dir,Dir}]})
-    end.
-
-env(Info) ->
-    [{"DOCUMENT_NAME",document_name(Info#mod.data,Info#mod.config_db,
-				    Info#mod.request_uri)},
-     {"DOCUMENT_URI", document_uri(Info#mod.config_db, Info#mod.request_uri)},
-     {"QUERY_STRING_UNESCAPED", query_string_unescaped(Info#mod.request_uri)},
-     {"DATE_LOCAL", date_local()},
-     {"DATE_GMT", date_gmt()},
-     {"LAST_MODIFIED", last_modified(Info#mod.data, Info#mod.config_db,
-				     Info#mod.request_uri)}
-    ].
-
-%% cgi
-
-cgi(Info, Context, ErrorLog, R, RequestURI) ->
-    ScriptAliases = httpd_util:multi_lookup(Info#mod.config_db, script_alias),
-    case mod_alias:real_script_name(Info#mod.config_db, RequestURI,
-				    ScriptAliases) of
-	{Script, AfterScript} ->
-	    exec_script(Info,Script,AfterScript,ErrorLog,Context,R);
-	not_a_script ->
-	    {ok, Context,
-	     [{internal_info, ?NICE(RequestURI++" is not a script")}|
-	      ErrorLog], proplists:get_value(errmsg, Context, ""),R}
-    end.
-
-remove_header([]) ->
-    [];
-remove_header([$\n,$\n|Rest]) ->
-    Rest;
-remove_header([_C|Rest]) ->
-    remove_header(Rest).
-
-
-exec_script(#mod{config_db = Db, request_uri = RequestUri} = Info, 
-	    Script, _AfterScript, ErrorLog, Context, R) ->
-    process_flag(trap_exit,true),    
-    Aliases = httpd_util:multi_lookup(Db, alias),
-    {_, Path, AfterPath} = mod_alias:real_name(Db, RequestUri, Aliases),
-    Env  = env(Info) ++ mod_cgi:env(Info, Path, AfterPath),
-    Dir  = filename:dirname(Path),
-    Port = (catch open_port({spawn,Script},[stream,{env, Env},{cd, Dir}])),
-    case Port of
-	P when is_port(P) ->
-	    %% Send entity body to port.
-	    Res = case Info#mod.entity_body of
-		      [] ->
-			  true;
-		      EntityBody ->
-			  (catch port_command(Port, EntityBody))
-		  end,
-	    case Res of
-		{'EXIT', Reason} ->
-		    exit({open_cmd_failed,Reason,
-			  [{mod,?MODULE},{port,Port},
-			   {uri,RequestUri},
-			   {script,Script},{env,Env},{dir,Dir},
-			   {ebody_size,sz(Info#mod.entity_body)}]});
-		true ->
-		    {NewErrorLog, Result} = proxy(Port, ErrorLog),
-		    {ok, Context, NewErrorLog, remove_header(Result), R}
-	    end;
-	{'EXIT', Reason} ->
-	    exit({open_port_failed,Reason,
-		  [{mod,?MODULE},{uri,RequestUri},{script,Script},
-		   {env,Env},{dir,Dir}]});
-	O ->
-	    exit({open_port_failed,O,
-		  [{mod,?MODULE},{uri,RequestUri},{script,Script},
-		   {env,Env},{dir,Dir}]})
-    end.
-    
-
-%%
-%% Port communication
-%%
-
-proxy(Port, ErrorLog) ->
-    process_flag(trap_exit, true),
-    proxy(Port, ErrorLog, []).
-
-proxy(Port, ErrorLog, Result) ->
-    receive
-	{Port, {data, Response}} ->
-	    proxy(Port, ErrorLog, lists:append(Result,Response));
-	{'EXIT', Port, normal} when is_port(Port) ->
-	    process_flag(trap_exit, false),
-	    {ErrorLog, Result};
-	{'EXIT', Port, _Reason} when is_port(Port) ->
-	    process_flag(trap_exit, false),
-	    {[{internal_info,
-	       ?NICE("Scrambled output from CGI-script")}|ErrorLog],
-	     Result};
-	{'EXIT', Pid, Reason} when is_pid(Pid) ->
-	    process_flag(trap_exit, false),
-	    {'EXIT', Pid, Reason};
-	%% This should not happen!
-	_WhatEver ->
-	    process_flag(trap_exit, false),
-	    {ErrorLog, Result}
-    end.
-
-
-%% ------
-%% Temporary until I figure out a way to fix send_in_chunks
-%% (comments and directives that start in one chunk but end
-%% in another is not handled).
-%%
-
-send_in(Info, Path, Head, {ok,FileInfo}) ->
-    case file:read_file(Path) of
-	{ok, Bin} ->
-	    send_in1(Info, binary_to_list(Bin), Head, FileInfo);
-	{error, Reason} ->
-	    {error, {read,Reason}}
-    end;
-send_in(_Info , _Path, _Head,{error,Reason}) ->
-    {error, {open,Reason}}.
-
-send_in1(Info, Data, Head, FileInfo) ->
-    {ok, _Context, Err, ParsedBody} = parse(Info,Data,?DEFAULT_CONTEXT,[],[]),
-    Size = length(ParsedBody),
-    LastModified = case catch httpd_util:rfc1123_date(FileInfo#file_info.mtime) of
-		       Date when is_list(Date) -> [{last_modified,Date}];
-		       _ -> []
-		   end,
-    Head1 = case Info#mod.http_version of 
-		"HTTP/1.1"->
-		    Head ++ [{content_length, integer_to_list(Size)},  
-			     {etag, httpd_util:create_etag(FileInfo,Size)}|
-			     LastModified];
-		_->
-		    %% i.e http/1.0 and http/0.9
-		    Head ++  [{content_length, integer_to_list(Size)}|  
-			      LastModified]
-	    end,
-    httpd_response:send_header(Info, 200, Head1),
-    httpd_socket:deliver(Info#mod.socket_type,Info#mod.socket, ParsedBody),
-    {ok, Err, Size}.
-
-
-parse(Info,Body) ->
-  parse(Info, Body, ?DEFAULT_CONTEXT, [], []).
-
-parse(_Info, [], Context, ErrorLog, Result) ->
-    {ok, Context, lists:reverse(ErrorLog), lists:reverse(Result)};
-parse(Info,[$<,$!,$-,$-,$#|R1],Context,ErrorLog,Result) ->
-  case catch parse0(R1,Context) of
-    {parse_error,Reason} ->
-      parse(Info,R1,Context,[{internal_info,?NICE(Reason)}|ErrorLog],
-	    [$#,$-,$-,$!,$<|Result]);
-    {ok,Context,Command,TagList,ValueList,R2} ->
-	  {ok,NewContext,NewErrorLog,MoreResult,R3}=
-	      handle(Info,Context,ErrorLog,Command,TagList,ValueList,R2),
-	  parse(Info,R3,NewContext,NewErrorLog,
-		lists:reverse(MoreResult)++Result)
-  end;
-parse(Info,[$<,$!,$-,$-|R1],Context,ErrorLog,Result) ->
-  case catch parse5(R1,[],0) of
-    {parse_error,Reason} ->
-	  parse(Info,R1,Context,
-		[{internal_info,?NICE(Reason)}|ErrorLog],Result);
-      {Comment,R2} ->
-      parse(Info,R2,Context,ErrorLog,Comment++Result)
-  end;
-parse(Info,[C|R],Context,ErrorLog,Result) ->
-  parse(Info,R,Context,ErrorLog,[C|Result]).
-
-handle(Info,Context,ErrorLog,Command,TagList,ValueList,R) ->
-  case catch apply(?MODULE,Command,[Info,Context,ErrorLog,TagList,ValueList,
-				    R]) of
-    {'EXIT',{undef,_}} ->
-      throw({parse_error,"Unknown command "++atom_to_list(Command)++
-	     " in parsed doc"});
-    Result ->
-      Result
-  end.
-
-parse0([], _Context) ->
-  throw({parse_error,"Premature EOF in parsed file"});
-parse0([$-,$-,$>|_R], _Context) ->
-  throw({parse_error,"Premature EOF in parsed file"});
-parse0([$ |R], Context) ->
-  parse0(R,Context);
-parse0(String, Context) ->
-  parse1(String, Context,"").
-
-parse1([], _Context, _Command) ->
-  throw({parse_error,"Premature EOF in parsed file"});
-parse1([$-,$-,$>|_R], _Context, _Command) ->
-  throw({parse_error,"Premature EOF in parsed file"});
-parse1([$ |R], Context, Command) ->
-  parse2(R,Context,list_to_atom(lists:reverse(Command)),[],[],"");
-parse1([C|R], Context, Command) ->
-  parse1(R,Context,[C|Command]).
-
-parse2([], _Context, _Command, _TagList, _ValueList, _Tag) ->
-  throw({parse_error,"Premature EOF in parsed file"});
-parse2([$-,$-,$>|R], Context, Command, TagList, ValueList, _Tag) ->
-  {ok,Context,Command,TagList,ValueList,R};
-parse2([$ |R],Context,Command,TagList,ValueList,Tag) ->
-  parse2(R,Context,Command,TagList,ValueList,Tag);
-parse2([$=|R],Context,Command,TagList,ValueList,Tag) ->
-  parse3(R,Context,Command,[list_to_atom(lists:reverse(Tag))|TagList],
-	 ValueList);
-parse2([C|R],Context,Command,TagList,ValueList,Tag) ->
-  parse2(R,Context,Command,TagList,ValueList,[C|Tag]).
-
-parse3([], _Context, _Command, _TagList, _ValueList) ->
-  throw({parse_error,"Premature EOF in parsed file"});
-parse3([$-,$-,$>|_R], _Context, _Command, _TagList, _ValueList) ->
-  throw({parse_error,"Premature EOF in parsed file"});
-parse3([$ |R], Context, Command, TagList, ValueList) ->
-  parse3(R, Context, Command, TagList, ValueList);
-parse3([$"|R], Context, Command, TagList, ValueList) ->
-  parse4(R,Context,Command,TagList,ValueList,"");
-parse3(_String, _Context, _Command, _TagList, _ValueList) ->
-  throw({parse_error,"Premature EOF in parsed file"}).
-
-parse4([], _Context, _Command, _TagList, _ValueList, _Value) ->
-  throw({parse_error,"Premature EOF in parsed file"});
-parse4([$-,$-,$>|_R], _Context, _Command, _TagList, _ValueList, _Value) ->
-  throw({parse_error,"Premature EOF in parsed file"});
-parse4([$"|R],Context,Command,TagList,ValueList,Value) ->
-  parse2(R,Context,Command,TagList,[lists:reverse(Value)|ValueList],"");
-parse4([C|R],Context,Command,TagList,ValueList,Value) ->
-  parse4(R,Context,Command,TagList,ValueList,[C|Value]).
-
-parse5([], _Comment, _Depth) ->
-  throw({parse_error,"Premature EOF in parsed file"});
-parse5([$<,$!,$-,$-|R],Comment,Depth) ->
-  parse5(R,[$-,$-,$!,$<|Comment],Depth+1);
-parse5([$-,$-,$>|R],Comment,0) ->
-  {">--"++Comment++"--!<",R};
-parse5([$-,$-,$>|R],Comment,Depth) ->
-  parse5(R,[$>,$-,$-|Comment],Depth-1);
-parse5([C|R],Comment,Depth) ->
-  parse5(R,[C|Comment],Depth).
-
-
-sz(B) when is_binary(B) -> {binary,size(B)};
-sz(L) when is_list(L)   -> {list,length(L)};
-sz(_)                   -> undefined.
-
-%% send_error - Handle failure to send the file
-%%
-send_error({open,Reason},Info,Path) -> 
-    httpd_file:handle_error(Reason, "open", Info, Path);
-send_error({read,Reason},Info,Path) -> 
-    httpd_file:handle_error(Reason, "read", Info, Path).
-
-
-
-
diff --git a/lib/inets/src/http_server/mod_security.erl b/lib/inets/src/http_server/mod_security.erl
index 41988732ad..a85383a921 100644
--- a/lib/inets/src/http_server/mod_security.erl
+++ b/lib/inets/src/http_server/mod_security.erl
@@ -32,14 +32,13 @@
 
 -include("httpd.hrl").
 -include("httpd_internal.hrl").
--include("inets_internal.hrl").
 
 -define(VMODULE,"SEC").
 
-
-%% do/1
+%%====================================================================
+%% Internal application API
+%%====================================================================	     
 do(Info) ->
-    ?hdrt("do", [{info, Info}]),
     %% Check and see if any user has been authorized.
     case proplists:get_value(remote_user, Info#mod.data,not_defined_user) of
 	not_defined_user ->
@@ -84,151 +83,66 @@ do(Info) ->
 	    {_Dir, SDirData} = secretp(Path, Info#mod.config_db),
 	    Addr = httpd_util:lookup(Info#mod.config_db, bind_address),
 	    Port = httpd_util:lookup(Info#mod.config_db, port),
+	    Profile = httpd_util:lookup(Info#mod.config_db, profile, ?DEFAULT_PROFILE),
 	    case mod_security_server:check_blocked_user(Info, User, 
 							SDirData, 
-							Addr, Port) of
+							Addr, Port, Profile) of
 		true ->
 		    report_failed(Info, User ,"User Blocked"),
 		    {proceed, [{status, {403, Info#mod.request_uri, ""}} |
 			       Info#mod.data]};
 		false ->
 		    report_failed(Info, User,"Authentication Succedded"),
-		    mod_security_server:store_successful_auth(Addr, Port, 
+		    mod_security_server:store_successful_auth(Addr, Port, Profile, 
 							      User, 
 							      SDirData),
 		    {proceed, Info#mod.data}
 	    end
     end.
 
-report_failed(Info, Auth, Event) ->
-    Request = Info#mod.request_line,
-    {_PortNumber,RemoteHost}=(Info#mod.init_data)#init_data.peername,
-    String = RemoteHost ++ " : " ++ Event ++ " : " ++ Request ++ 
-	" : " ++ Auth,
-    mod_disk_log:security_log(Info,String),
-    mod_log:security_log(Info, String).
-
-take_failed_action(Info, Auth) ->
-    ?hdrd("take failed action", [{auth, Auth}]),
-    Path = mod_alias:path(Info#mod.data, Info#mod.config_db, 
-			  Info#mod.request_uri),
-    {_Dir, SDirData} = secretp(Path, Info#mod.config_db),
-    Addr = httpd_util:lookup(Info#mod.config_db, bind_address),
-    Port = httpd_util:lookup(Info#mod.config_db, port),
-    mod_security_server:store_failed_auth(Info, Addr, Port, 
-					  Auth, SDirData).
-
-secretp(Path, ConfigDB) ->
-    Directories = ets:match(ConfigDB,{directory,{'$1','_'}}),
-    case secret_path(Path, Directories) of
-	{yes, Directory} ->
-	    ?hdrd("secretp - yes", [{dir, Directory}]),
-	    SDirs0 = httpd_util:multi_lookup(ConfigDB, security_directory),
-	    [SDir] = lists:filter(fun({Directory0, _}) 
-				     when Directory0 == Directory ->
-					  true;
-				     (_) ->
-					  false
-				  end, SDirs0),
-	    SDir;
-	no ->
-	    {[], []}
-    end.
-
-secret_path(Path,Directories) ->
-    secret_path(Path, httpd_util:uniq(lists:sort(Directories)), to_be_found).
-
-secret_path(_Path, [], to_be_found) ->
-    no;
-secret_path(_Path, [], Dir) ->
-    {yes, Dir};
-secret_path(Path, [[NewDir]|Rest], Dir) ->
-    case inets_regexp:match(Path, NewDir) of
-	{match, _, _} when Dir =:= to_be_found ->
-	    secret_path(Path, Rest, NewDir);
-	{match, _, Length} when Length > length(Dir) ->
-	    secret_path(Path, Rest, NewDir);
-	{match, _, _} ->
-	    secret_path(Path, Rest, Dir);
-	nomatch ->
-	    secret_path(Path, Rest, Dir)
-    end.
-
-
 load("<Directory " ++ Directory, []) ->
-    ?hdrt("load security directory - begin", [{directory, Directory}]),
     Dir = httpd_conf:custom_clean(Directory,"",">"),
     {ok, [{security_directory, {Dir, [{path, Dir}]}}]};
 load(eof,[{security_directory, {Directory, _DirData}}|_]) ->
     {error, ?NICE("Premature end-of-file in "++Directory)};
 load("SecurityDataFile " ++ FileName, 
      [{security_directory, {Dir, DirData}}]) ->
-    ?hdrt("load security directory", 
-	  [{file, FileName}, {dir, Dir}, {dir_data, DirData}]),
     File = httpd_conf:clean(FileName),
     {ok, [{security_directory, {Dir, [{data_file, File}|DirData]}}]};
 load("SecurityCallbackModule " ++ ModuleName,
      [{security_directory, {Dir, DirData}}]) ->
-    ?hdrt("load security directory", 
-	  [{module, ModuleName}, {dir, Dir}, {dir_data, DirData}]),
     Mod = list_to_atom(httpd_conf:clean(ModuleName)),
     {ok, [{security_directory, {Dir, [{callback_module, Mod}|DirData]}}]};
 load("SecurityMaxRetries " ++ Retries,
      [{security_directory, {Dir, DirData}}]) ->
-    ?hdrt("load security directory", 
-	  [{max_retries, Retries}, {dir, Dir}, {dir_data, DirData}]),
     load_return_int_tag("SecurityMaxRetries", max_retries, 
 			httpd_conf:clean(Retries), Dir, DirData);
 load("SecurityBlockTime " ++ Time,
       [{security_directory, {Dir, DirData}}]) ->
-    ?hdrt("load security directory", 
-	  [{block_time, Time}, {dir, Dir}, {dir_data, DirData}]),
     load_return_int_tag("SecurityBlockTime", block_time,
 			httpd_conf:clean(Time), Dir, DirData);
 load("SecurityFailExpireTime " ++ Time,
      [{security_directory, {Dir, DirData}}]) ->
-    ?hdrt("load security directory", 
-	  [{expire_time, Time}, {dir, Dir}, {dir_data, DirData}]),
     load_return_int_tag("SecurityFailExpireTime", fail_expire_time,
 			httpd_conf:clean(Time), Dir, DirData);
 load("SecurityAuthTimeout " ++ Time0,
      [{security_directory, {Dir, DirData}}]) ->
-    ?hdrt("load security directory", 
-	  [{auth_timeout, Time0}, {dir, Dir}, {dir_data, DirData}]),
     Time = httpd_conf:clean(Time0),
     load_return_int_tag("SecurityAuthTimeout", auth_timeout,
 			httpd_conf:clean(Time), Dir, DirData);
 load("AuthName " ++ Name0,
      [{security_directory, {Dir, DirData}}]) ->
-    ?hdrt("load security directory", 
-	  [{name, Name0}, {dir, Dir}, {dir_data, DirData}]),
     Name = httpd_conf:clean(Name0),
     {ok, [{security_directory, {Dir, [{auth_name, Name}|DirData]}}]};
 load("</Directory>",[{security_directory, {Dir, DirData}}]) ->
-    ?hdrt("load security directory - end", 
-	  [{dir, Dir}, {dir_data, DirData}]),
     {ok, [], {security_directory, {Dir, DirData}}}.
 
-load_return_int_tag(Name, Atom, Time, Dir, DirData) ->
-    case Time of
-	"infinity" ->
-	    {ok, [{security_directory, {Dir, 
-		   [{Atom, 99999999999999999999999999999} | DirData]}}]};
-	_Int ->
-	    case catch list_to_integer(Time) of
-		{'EXIT', _} ->
-		    {error, Time++" is an invalid "++Name};
-		Val ->
-		    {ok, [{security_directory, {Dir, [{Atom, Val}|DirData]}}]}
-	    end
-    end.
-
 store({security_directory, {Dir, DirData}}, ConfigList) 
   when is_list(Dir) andalso is_list(DirData) ->
-    ?hdrt("store security directory", [{dir, Dir}, {dir_data, DirData}]),
     Addr = proplists:get_value(bind_address, ConfigList),
     Port = proplists:get_value(port, ConfigList),
-    mod_security_server:start(Addr, Port),
+    Profile = proplists:get_value(profile, ConfigList, ?DEFAULT_PROFILE),
+    mod_security_server:start(Addr, Port, Profile),
     SR = proplists:get_value(server_root, ConfigList),
     case proplists:get_value(data_file, DirData, no_data_file) of
 	no_data_file ->
@@ -241,7 +155,7 @@ store({security_directory, {Dir, DirData}}, ConfigList)
 		    _ ->
 			DataFile0
 		end,
-	    case mod_security_server:new_table(Addr, Port, DataFile) of
+	    case mod_security_server:new_table(Addr, Port, Profile, DataFile) of
 		{ok, TwoTables} ->
 		    NewDirData0 = lists:keyreplace(data_file, 1, DirData, 
 						   {data_file, TwoTables}),
@@ -261,45 +175,35 @@ store({directory, {Directory, DirData}}, _) ->
     {error, {wrong_type, {security_directory, {Directory, DirData}}}}.
 
 remove(ConfigDB) ->
-    Addr = case ets:lookup(ConfigDB, bind_address) of
-	       [] -> 
-		   undefined;
-	       [{bind_address, Address}] ->
-		   Address
-	   end,
-    [{port, Port}] = ets:lookup(ConfigDB, port),
-    mod_security_server:delete_tables(Addr, Port),
-    mod_security_server:stop(Addr, Port).
+    Addr = httpd_util:lookup(ConfigDB, bind_address, undefined),
+    Port = httpd_util:lookup(ConfigDB, port),
+    Profile = httpd_util:lookup(ConfigDB, profile, ?DEFAULT_PROFILE),
+    mod_security_server:delete_tables(Addr, Port, Profile),
+    mod_security_server:stop(Addr, Port, Profile).
     
 
-%%
-%% User API
-%%
-
-%% list_blocked_users
-
 list_blocked_users(Port) ->
     list_blocked_users(undefined, Port).
 
 list_blocked_users(Port, Dir) when is_integer(Port) ->
     list_blocked_users(undefined,Port,Dir);
 list_blocked_users(Addr, Port) when is_integer(Port) ->
-    mod_security_server:list_blocked_users(Addr, Port).
+    lists:map(fun({User, Addr0, Port0, ?DEFAULT_PROFILE, Dir0, Time}) ->
+		      {User, Addr0, Port0, Dir0,Time}
+	      end,
+	      mod_security_server:list_blocked_users(Addr, Port)).
 
 list_blocked_users(Addr, Port, Dir) ->
-    mod_security_server:list_blocked_users(Addr, Port, Dir).
-
-
-%% block_user
+    lists:map(fun({User, Addr0, Port0, ?DEFAULT_PROFILE, Dir0, Time}) ->
+		      {User, Addr0, Port0, Dir0,Time}
+	      end,
+	      mod_security_server:list_blocked_users(Addr, Port, Dir)).
 
 block_user(User, Port, Dir, Time) ->
     block_user(User, undefined, Port, Dir, Time).
 block_user(User, Addr, Port, Dir, Time) ->
     mod_security_server:block_user(User, Addr, Port, Dir, Time).
 
-
-%% unblock_user
-
 unblock_user(User, Port) ->
     unblock_user(User, undefined, Port).
 
@@ -311,9 +215,6 @@ unblock_user(User, Addr, Port) when is_integer(Port) ->
 unblock_user(User, Addr, Port, Dir) ->
     mod_security_server:unblock_user(User, Addr, Port, Dir).
 
-
-%% list_auth_users
-
 list_auth_users(Port) ->
     list_auth_users(undefined,Port).
 
@@ -324,3 +225,76 @@ list_auth_users(Addr, Port) when is_integer(Port) ->
 
 list_auth_users(Addr, Port, Dir) ->
     mod_security_server:list_auth_users(Addr, Port, Dir).
+
+%%--------------------------------------------------------------------
+%%% Internal functions
+%%--------------------------------------------------------------------
+
+report_failed(Info, Auth, Event) ->
+    Request = Info#mod.request_line,
+    {_PortNumber,RemoteHost}=(Info#mod.init_data)#init_data.peername,
+    String = RemoteHost ++ " : " ++ Event ++ " : " ++ Request ++ 
+	" : " ++ Auth,
+    mod_disk_log:security_log(Info,String),
+    mod_log:security_log(Info, String).
+
+take_failed_action(Info, Auth) ->
+    Path = mod_alias:path(Info#mod.data, Info#mod.config_db, 
+			  Info#mod.request_uri),
+    {_Dir, SDirData} = secretp(Path, Info#mod.config_db),
+    Addr = httpd_util:lookup(Info#mod.config_db, bind_address),
+    Port = httpd_util:lookup(Info#mod.config_db, port),
+    Profile = httpd_util:lookup(Info#mod.config_db, profile, ?DEFAULT_PROFILE),
+    mod_security_server:store_failed_auth(Info, Addr, Port, Profile, 
+					  Auth, SDirData).
+
+secretp(Path, ConfigDB) ->
+    Directories = ets:match(ConfigDB,{directory,{'$1','_'}}),
+    case secret_path(Path, Directories) of
+	{yes, Directory} ->
+	    SDirs0 = httpd_util:multi_lookup(ConfigDB, security_directory),
+	    [SDir] = lists:filter(fun({Directory0, _}) 
+				     when Directory0 == Directory ->
+					  true;
+				     (_) ->
+					  false
+				  end, SDirs0),
+	    SDir;
+	no ->
+	    {[], []}
+    end.
+
+secret_path(Path,Directories) ->
+    secret_path(Path, httpd_util:uniq(lists:sort(Directories)), to_be_found).
+
+secret_path(_Path, [], to_be_found) ->
+    no;
+secret_path(_Path, [], Dir) ->
+    {yes, Dir};
+secret_path(Path, [[NewDir]|Rest], Dir) ->
+    case inets_regexp:match(Path, NewDir) of
+	{match, _, _} when Dir =:= to_be_found ->
+	    secret_path(Path, Rest, NewDir);
+	{match, _, Length} when Length > length(Dir) ->
+	    secret_path(Path, Rest, NewDir);
+	{match, _, _} ->
+	    secret_path(Path, Rest, Dir);
+	nomatch ->
+	    secret_path(Path, Rest, Dir)
+    end.
+
+
+
+load_return_int_tag(Name, Atom, Time, Dir, DirData) ->
+    case Time of
+	"infinity" ->
+	    {ok, [{security_directory, {Dir, 
+		   [{Atom, 99999999999999999999999999999} | DirData]}}]};
+	_Int ->
+	    case catch list_to_integer(Time) of
+		{'EXIT', _} ->
+		    {error, Time++" is an invalid "++Name};
+		Val ->
+		    {ok, [{security_directory, {Dir, [{Atom, Val}|DirData]}}]}
+	    end
+    end.
diff --git a/lib/inets/src/http_server/mod_security_server.erl b/lib/inets/src/http_server/mod_security_server.erl
index 784b3eba70..4f37dff18c 100644
--- a/lib/inets/src/http_server/mod_security_server.erl
+++ b/lib/inets/src/http_server/mod_security_server.erl
@@ -45,7 +45,6 @@
 
 -include("httpd.hrl").
 -include("httpd_internal.hrl").
--include("inets_internal.hrl").
 
 -behaviour(gen_server).
 
@@ -57,129 +56,105 @@
 	 list_auth_users/2, list_auth_users/3]).
 
 %% Internal exports (for mod_security only)
--export([start/2, stop/1, stop/2,
-	 new_table/3, delete_tables/2, 
-	 store_failed_auth/5, store_successful_auth/4, 
-	 check_blocked_user/5]).
+-export([start/3, stop/2, stop/3,
+	 new_table/4, delete_tables/3, 
+	 store_failed_auth/6, store_successful_auth/5, 
+	 check_blocked_user/6]).
 
 %% gen_server exports
--export([start_link/2, init/1, 
+-export([start_link/3, init/1, 
 	 handle_info/2, handle_call/3, handle_cast/2, 
 	 terminate/2,
 	 code_change/3]).
 
+%%====================================================================
+%% Internal application API
+%%====================================================================	     
 
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%%                                                                  %%
-%% External API                                                     %%
-%%                                                                  %%
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-%% start_link/3
-%% 
 %% NOTE: This is called by httpd_misc_sup when the process is started
-%% 
-
-start_link(Addr, Port) ->
-    ?hdrt("start_link", [{address, Addr}, {port, Port}]),
-    Name = make_name(Addr, Port),
+start_link(Addr, Port, Profile) ->
+    Name = make_name(Addr, Port, Profile),
     gen_server:start_link({local, Name}, ?MODULE, [], [{timeout, infinity}]).
 
-
-%% start/2
 %% Called  by the mod_security module.
-
-start(Addr, Port) ->
-    ?hdrt("start", [{address, Addr}, {port, Port}]),
-    Name = make_name(Addr, Port),
+start(Addr, Port, Profile) ->
+    Name = make_name(Addr, Port, Profile),
     case whereis(Name) of
 	undefined ->
-	   httpd_misc_sup:start_sec_server(Addr, Port);
+	   httpd_misc_sup:start_sec_server(Addr, Port, Profile);
 	_ -> %% Already started...
 	    ok
     end.
 
-
-%% stop
-
-stop(Port) ->
-    stop(undefined, Port).
-stop(Addr, Port) ->
-    ?hdrt("stop", [{address, Addr}, {port, Port}]),
-    Name = make_name(Addr, Port),
+stop(Port, Profile) ->
+    stop(undefined, Port, Profile).
+stop(Addr, Port, Profile) ->
+    Name = make_name(Addr, Port, Profile),
     case whereis(Name) of
 	undefined ->
 	    ok;
 	_ ->
-	    httpd_misc_sup:stop_sec_server(Addr, Port)
+	    httpd_misc_sup:stop_sec_server(Addr, Port, Profile)
     end.
 
-
 addr(undefined) ->
     any;
 addr(Addr) ->
     Addr.
 
-
-%% list_blocked_users
-
 list_blocked_users(Addr, Port) ->
-    Name = make_name(Addr, Port),
-    Req  = {list_blocked_users, addr(Addr), Port, '_'},
-    call(Name, Req).
-
+    list_blocked_users(Addr, Port, ?DEFAULT_PROFILE).
+list_blocked_users(Addr, Port, Profile) when is_atom(Profile)->
+    Name = make_name(Addr, Port, Profile),
+    Req  = {list_blocked_users, addr(Addr), Port, Profile,'_'},
+    call(Name, Req);
 list_blocked_users(Addr, Port, Dir) ->
-    Name = make_name(Addr, Port),
-    Req  = {list_blocked_users, addr(Addr), Port, Dir},
+    list_blocked_users(Addr, Port, ?DEFAULT_PROFILE, Dir).
+list_blocked_users(Addr, Port, Profile, Dir) ->
+    Name = make_name(Addr, Port, Profile),
+    Req  = {list_blocked_users, addr(Addr), Port, Profile, Dir},
     call(Name, Req).
 
-
-%% block_user
-
 block_user(User, Addr, Port, Dir, Time) ->
-    Name = make_name(Addr, Port),
-    Req  = {block_user, User, addr(Addr), Port, Dir, Time},
+    block_user(User, Addr, Port, ?DEFAULT_PROFILE, Dir, Time).
+block_user(User, Addr, Port, Profile, Dir, Time) ->
+    Name = make_name(Addr, Port, Profile),
+    Req  = {block_user, User, addr(Addr), Port, Profile, Dir, Time},
     call(Name, Req).
 
-
-%% unblock_user
-
 unblock_user(User, Addr, Port) ->
-    Name = make_name(Addr, Port),
-    Req  = {unblock_user, User, addr(Addr), Port, '_'},
-    call(Name, Req).
-
+    unblock_user(User, Addr, Port, ?DEFAULT_PROFILE).
+unblock_user(User, Addr, Port, Profile) when is_atom(Profile)->
+    Name = make_name(Addr, Port, Profile),
+    Req  = {unblock_user, User, addr(Addr), Port, Profile, '_'},
+    call(Name, Req);
 unblock_user(User, Addr, Port, Dir) ->
-    Name = make_name(Addr, Port),
-    Req  = {unblock_user, User, addr(Addr), Port, Dir},
+    unblock_user(User, Addr, Port, ?DEFAULT_PROFILE, Dir).
+unblock_user(User, Addr, Port, Profile, Dir) ->
+    Name = make_name(Addr, Port, Profile),
+    Req  = {unblock_user, User, addr(Addr), Port, Profile, Dir},
     call(Name, Req).
 
-
-%% list_auth_users
-
 list_auth_users(Addr, Port) ->
-    Name = make_name(Addr, Port),
-    Req  = {list_auth_users, addr(Addr), Port, '_'},
-    call(Name, Req).
-
+    list_auth_users(Addr, Port, ?DEFAULT_PROFILE).
+list_auth_users(Addr, Port, Profile) when is_atom(Profile) ->
+    Name = make_name(Addr, Port, Profile),
+    Req  = {list_auth_users, addr(Addr), Port, Profile, '_'},
+    call(Name, Req);
 list_auth_users(Addr, Port, Dir) ->
-    Name = make_name(Addr,Port),
-    Req  = {list_auth_users, addr(Addr), Port, Dir}, 
+    list_auth_users(Addr, Port, ?DEFAULT_PROFILE, Dir).
+list_auth_users(Addr, Port, Profile, Dir) ->
+    Name = make_name(Addr,Port, Profile),
+    Req  = {list_auth_users, addr(Addr), Port, Profile, Dir}, 
     call(Name, Req).
-    
 
-%% new_table
-
-new_table(Addr, Port, TabName) ->
-    Name = make_name(Addr,Port),
-    Req  = {new_table, addr(Addr), Port, TabName}, 
+new_table(Addr, Port, Profile, TabName) ->
+    Name = make_name(Addr,Port, Profile),
+    Req  = {new_table, addr(Addr), Port, Profile, TabName}, 
     call(Name, Req).
 
-
-%% delete_tables
-    
-delete_tables(Addr, Port) ->
-    Name = make_name(Addr, Port),
+delete_tables(Addr, Port, Profile) ->
+    Name = make_name(Addr, Port, Profile),
     case whereis(Name) of
 	undefined ->
 	    ok;
@@ -187,79 +162,53 @@ delete_tables(Addr, Port) ->
 	    call(Name, delete_tables)
     end.
 
-
-%% store_failed_auth
-
-store_failed_auth(Info, Addr, Port, DecodedString, SDirData) ->
-    ?hdrv("store failed auth", 
-	  [{addr, Addr}, {port, Port}, 
-	   {decoded_string, DecodedString}, {sdir_data, SDirData}]),
-    Name = make_name(Addr,Port),
-    Msg  = {store_failed_auth,[Info,DecodedString,SDirData]},
+store_failed_auth(Info, Addr, Port, Profile, DecodedString, SDirData) ->
+    Name = make_name(Addr, Port, Profile),
+    Msg  = {store_failed_auth, Profile, [Info,DecodedString,SDirData]},
     cast(Name, Msg).
 
-
-%% store_successful_auth
-
-store_successful_auth(Addr, Port, User, SDirData) ->
-    Name = make_name(Addr,Port),
-    Msg  = {store_successful_auth, [User,Addr,Port,SDirData]}, 
+store_successful_auth(Addr, Port, Profile, User, SDirData) ->
+    Name = make_name(Addr,Port, Profile),
+    Msg  = {store_successful_auth, [User,Addr,Port, Profile, SDirData]}, 
     cast(Name, Msg).
-    
-
-%% check_blocked_user
-
-check_blocked_user(Info, User, SDirData, Addr, Port) ->
-    Name = make_name(Addr, Port),
-    Req  = {check_blocked_user, [Info, User, SDirData]}, 
+ 
+check_blocked_user(Info, User, SDirData, Addr, Port, Profile) ->
+    Name = make_name(Addr, Port, Profile),
+    Req  = {check_blocked_user, Profile, [Info, User, SDirData]}, 
     call(Name, Req).
 
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%%                                                                  %%
-%% Server call-back functions                                       %%
-%%                                                                  %%
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
+%%====================================================================
+%% Behavior call backs
+%%====================================================================	     
 init(_) ->
-    ?hdrv("initiating", []),
     process_flag(trap_exit, true),
     {ok, []}.
 
 handle_call(stop, _From, _Tables) ->
     {stop, normal, ok, []};
 
-handle_call({block_user, User, Addr, Port, Dir, Time}, _From, Tables) ->
-    ?hdrv("block user", 
-	  [{user, User}, {addr, Addr}, {port, Port}, {dir, Dir}, 
-	   {time, Time}]), 
-    Ret = block_user_int(User, Addr, Port, Dir, Time),
+handle_call({block_user, User, Addr, Port, Profile, Dir, Time}, _From, Tables) ->
+    Ret = block_user_int(User, Addr, Port, Profile, Dir, Time),
     {reply, Ret, Tables};
 
-handle_call({list_blocked_users, Addr, Port, Dir}, _From, Tables) ->
-    ?hdrv("list blocked users", 
-	  [{addr, Addr}, {port, Port}, {dir, Dir}]),
-    Blocked = list_blocked(Tables, Addr, Port, Dir, []),
+handle_call({list_blocked_users, Addr, Port, Profile, Dir}, _From, Tables) ->
+    Blocked = list_blocked(Tables, Addr, Port, Profile, Dir, []),
     {reply, Blocked, Tables};
 
-handle_call({unblock_user, User, Addr, Port, Dir}, _From, Tables) ->
-    ?hdrv("block user", 
-	  [{user, User}, {addr, Addr}, {port, Port}, {dir, Dir}]), 
-    Ret = unblock_user_int(User, Addr, Port, Dir),
+handle_call({unblock_user, User, Addr, Port, Profile, Dir}, _From, Tables) ->
+    Ret = unblock_user_int(User, Addr, Port, Profile,Dir),
     {reply, Ret, Tables};
 
-handle_call({list_auth_users, Addr, Port, Dir}, _From, Tables) ->
-    ?hdrv("list auth users", 
-	  [{addr, Addr}, {port, Port}, {dir, Dir}]), 
-    Auth = list_auth(Tables, Addr, Port, Dir, []),
+handle_call({list_auth_users, Addr, Port, Profile, Dir}, _From, Tables) ->
+    Auth = list_auth(Tables, Addr, Port, Profile, Dir, []),
     {reply, Auth, Tables};
 
-handle_call({new_table, Addr, Port, Name}, _From, Tables) ->
+handle_call({new_table, Addr, Port, Profile, Name}, _From, Tables) ->
     case lists:keysearch(Name, 1, Tables) of
 	{value, {Name, {Ets, Dets}}} ->
 	    {reply, {ok, {Ets, Dets}}, Tables};
 	false ->
-	    TName = make_name(Addr,Port,length(Tables)),
+	    TName = make_name(Addr,Port, Profile, length(Tables)),
 	    case dets:open_file(TName, [{type, bag}, {file, Name}, 
 					{repair, true}, 
 					{access, read_write}]) of
@@ -280,7 +229,7 @@ handle_call(delete_tables, _From, Tables) ->
 		  end, Tables),
     {reply, ok, []};
 
-handle_call({check_blocked_user, [Info, User, SDirData]}, _From, Tables) ->
+handle_call({check_blocked_user, Profile, [Info, User, SDirData]}, _From, Tables) ->
     {ETS, DETS} = proplists:get_value(data_file, SDirData),
     Dir = proplists:get_value(path, SDirData),
     Addr = proplists:get_value(bind_address, SDirData),
@@ -288,27 +237,24 @@ handle_call({check_blocked_user, [Info, User, SDirData]}, _From, Tables) ->
     CBModule = 
 	proplists:get_value(callback_module, SDirData, no_module_at_all),
     Ret = 
-	check_blocked_user(Info, User, Dir, Addr, Port, ETS, DETS, CBModule),
+	check_blocked_user(Info, User, Dir, Addr, Port, Profile, ETS, DETS, CBModule),
     {reply, Ret, Tables};
 
 handle_call(_Request,_From,Tables) ->
     {reply,ok,Tables}.
 
-
-%% handle_cast
-
-handle_cast({store_failed_auth, [_, _, []]}, Tables) ->
+handle_cast({store_failed_auth, _,[_, _, []]}, Tables) ->
     %% Some other authentication scheme than mod_auth (example mod_htacess)
     %% was the source for the authentication failure so we should ignor it!
     {noreply, Tables};
-handle_cast({store_failed_auth, [Info, DecodedString, SDirData]}, Tables) ->
+handle_cast({store_failed_auth, Profile, [Info, DecodedString, SDirData]}, Tables) ->
     {ETS, DETS} = proplists:get_value(data_file, SDirData),
     Dir  = proplists:get_value(path, SDirData),
     Addr = proplists:get_value(bind_address, SDirData),
     Port = proplists:get_value(port, SDirData),
     {ok, [User,Password]} = httpd_util:split(DecodedString,":",2),
     Seconds = universal_time(),
-    Key = {User, Dir, Addr, Port},
+    Key = {User, Dir, Addr, Port, Profile},
     %% Event
     CBModule = proplists:get_value(callback_module, 
 				     SDirData, no_module_at_all),
@@ -363,7 +309,7 @@ handle_cast({store_failed_auth, [Info, DecodedString, SDirData]}, Tables) ->
 	    dets:match_delete(DETS, {blocked_user,
 				     {User, Addr, Port, Dir, '$1'}}),
 	    BlockRecord = {blocked_user, 
-			   {User, Addr, Port, Dir, Future}},
+			   {User, Addr, Port, Profile, Dir, Future}},
 	    ets:insert(ETS, BlockRecord),
 	    dets:insert(DETS, BlockRecord),
 	    %% Remove previous failed requests.
@@ -374,11 +320,11 @@ handle_cast({store_failed_auth, [Info, DecodedString, SDirData]}, Tables) ->
     end,
     {noreply, Tables};
 
-handle_cast({store_successful_auth, [User, Addr, Port, SDirData]}, Tables) ->
+handle_cast({store_successful_auth, [User, Addr, Port, Profile, SDirData]}, Tables) ->
     {ETS, DETS} = proplists:get_value(data_file, SDirData),
     AuthTimeOut = proplists:get_value(auth_timeout, SDirData, 30),
     Dir = proplists:get_value(path, SDirData),
-    Key = {User, Dir, Addr, Port},
+    Key = {User, Dir, Addr, Port, Profile},
 
     %% Remove failed entries for this Key
     dets:match_delete(DETS, {failed, {Key, '_', '_'}}),
@@ -396,33 +342,22 @@ handle_cast(Req, Tables) ->
     error_msg("security server got unknown cast: ~p",[Req]),
     {noreply, Tables}.
 
-
-%% handle_info
-
 handle_info(_Info, State) ->
     {noreply, State}.
 
-
-%% terminate
-
 terminate(_Reason, _Tables) ->
     ok.
 
-
-%% code_change({down, ToVsn}, State, Extra)
-%% 
-code_change({down, _}, State, _Extra) ->
-    {ok, State};
-
-
-%% code_change(FromVsn, State, Extra)
-%%
 code_change(_, State, _Extra) ->
     {ok, State}.
 
+%%--------------------------------------------------------------------
+%%% Internal functions
+%%--------------------------------------------------------------------
+
 %% block_user_int/5
-block_user_int(User, Addr, Port, Dir, Time) ->
-    Dirs = httpd_manager:config_match(Addr, Port, 
+block_user_int(User, Addr, Port, Profile, Dir, Time) ->
+    Dirs = httpd_manager:config_match(Addr, Port, Profile, 
 				      {security_directory, {'_', '_'}}),
     case find_dirdata(Dirs, Dir) of
 	{ok, DirData, {ETS, DETS}} ->
@@ -434,11 +369,11 @@ block_user_int(User, Addr, Port, Dir, Time) ->
 			Time
 		end,
 	    Future = universal_time()+Time1,
-	    ets:match_delete(ETS, {blocked_user, {User,Addr,Port,Dir,'_'}}),
+	    ets:match_delete(ETS, {blocked_user, {User,Addr,Port,Profile, Dir,'_'}}),
 	    dets:match_delete(DETS, {blocked_user, 
-				     {User,Addr,Port,Dir,'_'}}),
-	    ets:insert(ETS, {blocked_user, {User,Addr,Port,Dir,Future}}),
-	    dets:insert(DETS, {blocked_user, {User,Addr,Port,Dir,Future}}),
+				     {User,Addr,Port,Profile, Dir,'_'}}),
+	    ets:insert(ETS, {blocked_user, {User,Addr,Port, Profile, Dir,Future}}),
+	    dets:insert(DETS, {blocked_user, {User,Addr,Port,Profile, Dir,Future}}),
 	    CBModule = proplists:get_value(callback_module, DirData, 
 					     no_module_at_all),
 	    user_block_event(CBModule,Addr,Port,Dir,User),
@@ -447,7 +382,6 @@ block_user_int(User, Addr, Port, Dir, Time) ->
 	    {error, no_such_directory}
     end.
     
-
 find_dirdata([], _Dir) ->
     false;
 find_dirdata([{security_directory, {_, DirData}}|SDirs], Dir) ->
@@ -460,21 +394,20 @@ find_dirdata([{security_directory, {_, DirData}}|SDirs], Dir) ->
 	    find_dirdata(SDirs, Dir)
     end.
 
-%% unblock_user_int/4
-unblock_user_int(User, Addr, Port, Dir) ->
-    Dirs = httpd_manager:config_match(Addr, Port, 
+unblock_user_int(User, Addr, Port, Profile, Dir) ->
+    Dirs = httpd_manager:config_match(Addr, Port, Profile, 
 				      {security_directory, {'_', '_'}}),
     case find_dirdata(Dirs, Dir) of
 	{ok, DirData, {ETS, DETS}} ->
 	    case ets:match_object(ETS,
-				  {blocked_user,{User,Addr,Port,Dir,'_'}}) of
+				  {blocked_user,{User,Addr,Port,Profile,Dir,'_'}}) of
 		[] ->
 		    {error, not_blocked};
 		_Objects ->
 		    ets:match_delete(ETS, {blocked_user,
-					   {User, Addr, Port, Dir, '_'}}),
+					   {User, Addr, Port, Profile, Dir, '_'}}),
 		    dets:match_delete(DETS, {blocked_user,
-					     {User, Addr, Port, Dir, '_'}}),
+					     {User, Addr, Port, Profile, Dir, '_'}}),
 	       	    CBModule = proplists:get_value(callback_module, 
 						     DirData, 
 						     no_module_at_all),
@@ -485,63 +418,51 @@ unblock_user_int(User, Addr, Port, Dir) ->
 	    {error, no_such_directory}
     end.
 
-
-
-%% list_auth/2
-
-list_auth([], _Addr, _Port, _Dir, Acc) ->
+list_auth([], _, _, _, _, Acc) ->
     Acc;
-list_auth([{_Name, {ETS, DETS}}|Tables], Addr, Port, Dir, Acc) ->
-    case ets:match_object(ETS, {success, {{'_', Dir, Addr, Port}, '_'}}) of
+list_auth([{_Name, {ETS, DETS}}|Tables], Addr, Port, Profile, Dir, Acc) ->
+    case ets:match_object(ETS, {success, {{'_', Dir, Addr, Port, Profile}, '_'}}) of
 	[] ->
-	    list_auth(Tables, Addr, Port, Dir, Acc);
+	    list_auth(Tables, Addr, Port, Profile, Dir, Acc);
 	List ->
 	    TN = universal_time(),
-	    NewAcc = lists:foldr(fun({success,{{U,Ad,P,D},T}},Ac) -> 
+	    NewAcc = lists:foldr(fun({success,{{U,Ad,P, Pr,D},T}},Ac) -> 
 					 if
 					     T-TN > 0 ->
 						 [U|Ac];
 					     true ->
 						 Rec = {success,
-							{{U,Ad,P,D},T}},
+							{{U,Ad,P,Pr,D},T}},
 						 ets:match_delete(ETS,Rec),
 						 dets:match_delete(DETS,Rec),
 						 Ac
 					 end
 				 end,
 				 Acc, List),
-	    list_auth(Tables, Addr, Port, Dir, NewAcc)
+	    list_auth(Tables, Addr, Port, Profile, Dir, NewAcc)
     end.
 
-
-%% list_blocked/2
-
-list_blocked([], _Addr, _Port, _Dir, Acc) ->
-    ?hdrv("list blocked", [{acc, Acc}]), 
+list_blocked([], _, _, _, _, Acc) ->
     TN = universal_time(),
-    lists:foldl(fun({U,Ad,P,D,T}, Ac) ->
+    lists:foldl(fun({U,Ad,P,Pr,D,T}, Ac) ->
 			if
 			    T-TN > 0 ->
-				[{U,Ad,P,D,local_time(T)}|Ac];
+				[{U,Ad,P, Pr,D,local_time(T)}|Ac];
 			    true ->
 				Ac
 			end
 		end, 
 		[], Acc);
-list_blocked([{_Name, {ETS, _DETS}}|Tables], Addr, Port, Dir, Acc) ->
-    ?hdrv("list blocked", [{ets, ETS}, {tab2list, ets:tab2list(ETS)}]), 
+list_blocked([{_Name, {ETS, _DETS}}|Tables], Addr, Port, Profile, Dir, Acc) ->
     List = ets:match_object(ETS, {blocked_user, 
-				  {'_',Addr,Port,Dir,'_'}}),
+				  {'_',Addr,Port,Profile, Dir,'_'}}),
     
     NewBlocked = lists:foldl(fun({blocked_user, X}, A) -> 
 				     [X|A] end, Acc, List),
     
-    list_blocked(Tables, Addr, Port, Dir, NewBlocked).
+    list_blocked(Tables, Addr, Port, Profile, Dir, NewBlocked).
 
 
-%%
-%% sync_dets_to_ets/2
-%%
 %% Reads dets-table DETS and syncronizes it with the ets-table ETS.
 %%
 sync_dets_to_ets(DETS, ETS) ->
@@ -550,68 +471,62 @@ sync_dets_to_ets(DETS, ETS) ->
 				continue
 			end).
 
-%%
-%% check_blocked_user/7 -> true | false
-%%
 %% Check if a specific user is blocked from access.
 %%
 %% The sideeffect of this routine is that it unblocks also other users
 %% whos blocking time has expired. This to keep the tables as small
 %% as possible.
 %%
-check_blocked_user(Info, User, Dir, Addr, Port, ETS, DETS, CBModule) ->
+check_blocked_user(Info, User, Dir, Addr, Port, Profile, ETS, DETS, CBModule) ->
     TN = universal_time(),
-    BlockList = ets:match_object(ETS, {blocked_user, {User, '_', '_', '_', '_'}}), 
+    BlockList = ets:match_object(ETS, {blocked_user, {User, '_', '_', '_', '_', '_'}}), 
     Blocked = lists:foldl(fun({blocked_user, X}, A) ->
 				  [X|A] end, [], BlockList),
     check_blocked_user(Info,User,Dir,
-		       Addr,Port,ETS,DETS,TN,Blocked,CBModule).
+		       Addr,Port, Profile, ETS,DETS,TN,Blocked,CBModule).
 
-check_blocked_user(_Info, _User, _Dir, _Addr, _Port, _ETS, _DETS, _TN,
-		   [], _CBModule) ->
+check_blocked_user(_Info, _, _, _, _, _, _, _, _,[], _CBModule) ->
     false;
-check_blocked_user(Info, User, Dir, Addr, Port, ETS, DETS, TN, 
-		   [{User,Addr,Port,Dir,T}| _], CBModule) ->
+check_blocked_user(Info, User, Dir, Addr, Port, Profile, ETS, DETS, TN, 
+		   [{User,Addr,Port,Profile, Dir,T}| _], CBModule) ->
     TD = T-TN,
     if
 	TD =< 0 ->
 	    %% Blocking has expired, remove and grant access.
-	    unblock_user(Info, User, Dir, Addr, Port, ETS, DETS, CBModule),
+	    unblock_user(Info, User, Dir, Addr, Port, Profile, ETS, DETS, CBModule),
 	    false;
 	true ->
 	    true
     end;
-check_blocked_user(Info, User, Dir, Addr, Port, ETS, DETS, TN, 
-		   [{OUser,ODir,OAddr,OPort,T}|Ls], CBModule) ->
+check_blocked_user(Info, User, Dir, Addr, Port, Profile, ETS, DETS, TN, 
+		   [{OUser,ODir,OAddr,OPort, OProfile, T}|Ls], CBModule) ->
     TD = T-TN,
     if
 	TD =< 0 ->
 	    %% Blocking has expired, remove.
-	    unblock_user(Info, OUser, ODir, OAddr, OPort, 
+	    unblock_user(Info, OUser, ODir, OAddr, OPort, OProfile,
 			 ETS, DETS, CBModule);
 	true ->
 	    true
     end,
-    check_blocked_user(Info, User, Dir, Addr, Port, ETS, DETS, 
+    check_blocked_user(Info, User, Dir, Addr, Port, Profile, ETS, DETS, 
 		       TN, Ls, CBModule).
 
-unblock_user(Info, User, Dir, Addr, Port, ETS, DETS, CBModule) ->
+unblock_user(Info, User, Dir, Addr, Port, Profile, ETS, DETS, CBModule) ->
     Reason =
 	io_lib:format("User ~s was removed from the block list for dir ~s",
 			 [User, Dir]),
     mod_log:security_log(Info, lists:flatten(Reason)),
     user_unblock_event(CBModule,Addr,Port,Dir,User),
-    dets:match_delete(DETS, {blocked_user, {User, Addr, Port, Dir, '_'}}),
-    ets:match_delete(ETS, {blocked_user, {User, Addr, Port, Dir, '_'}}).
+    dets:match_delete(DETS, {blocked_user, {User, Addr, Port, Profile, Dir, '_'}}),
+    ets:match_delete(ETS, {blocked_user, {User, Addr, Port, Profile, Dir, '_'}}).
   
+make_name(Addr,Port, Profile) ->
+    httpd_util:make_name(?MODULE,Addr,Port, Profile).
 
-make_name(Addr,Port) ->
-    httpd_util:make_name("httpd_security",Addr,Port).
-
-make_name(Addr,Port,Num) ->
-    httpd_util:make_name("httpd_security",Addr,Port,
-			 "__" ++ integer_to_list(Num)).
-
+make_name(Addr,Port, Profile, Num) ->
+    httpd_util:make_name(?MODULE,Addr,Port,
+			 atom_to_list(Profile) ++ "__" ++ integer_to_list(Num)).
 
 auth_fail_event(Mod,Addr,Port,Dir,User,Passwd) ->
     event(auth_fail,Mod,Addr,Port,Dir,[{user,User},{password,Passwd}]).
@@ -623,17 +538,10 @@ user_unblock_event(Mod,Addr,Port,Dir,User) ->
     event(user_unblock,Mod,Addr,Port,Dir,[{user,User}]).
 
 event(Event, Mod, undefined, Port, Dir, Info) ->
-    ?hdrt("event", 
-	  [{event, Event}, {mod, Mod}, {port, Port}, {dir, Dir}]),
     (catch Mod:event(Event,Port,Dir,Info));
 event(Event, Mod, any, Port, Dir, Info) ->
-    ?hdrt("event", 
-	  [{event, Event}, {mod, Mod}, {port, Port}, {dir, Dir}]),
     (catch Mod:event(Event,Port,Dir,Info));
 event(Event, Mod, Addr, Port, Dir, Info) ->
-    ?hdrt("event", 
-	  [{event, Event}, {mod, Mod}, 
-	   {addr, Addr}, {port, Port}, {dir, Dir}]),
     (catch Mod:event(Event,Addr,Port,Dir,Info)).
 
 universal_time() ->
@@ -643,11 +551,9 @@ local_time(T) ->
     calendar:universal_time_to_local_time(
       calendar:gregorian_seconds_to_datetime(T)).
 
-
 error_msg(F, A) ->
     error_logger:error_msg(F, A).
 
-
 call(Name, Req) ->
     case (catch gen_server:call(Name, Req)) of
         {'EXIT', Reason} ->
@@ -656,7 +562,6 @@ call(Name, Req) ->
             Reply
     end.
 
-
 cast(Name, Msg) ->
     case (catch gen_server:cast(Name, Msg)) of
         {'EXIT', Reason} ->
diff --git a/lib/inets/src/inets_app/Makefile b/lib/inets/src/inets_app/Makefile
index 22426eee79..926585f198 100644
--- a/lib/inets/src/inets_app/Makefile
+++ b/lib/inets/src/inets_app/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 2005-2012. All Rights Reserved.
+# Copyright Ericsson AB 2005-2015. All Rights Reserved.
 #
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
@@ -47,7 +47,9 @@ MODULES = \
 	inets_app \
 	inets_sup \
 	inets_regexp \
-	inets_trace
+	inets_trace \
+	inets_lib \
+	inets_time_compat
 
 INTERNAL_HRL_FILES = inets_internal.hrl
 EXTERNAL_HRL_FILES = ../../include/httpd.hrl \
diff --git a/lib/inets/src/inets_app/inets.app.src b/lib/inets/src/inets_app/inets.app.src
index 48660bec62..6ba9795d9e 100644
--- a/lib/inets/src/inets_app/inets.app.src
+++ b/lib/inets/src/inets_app/inets.app.src
@@ -26,7 +26,9 @@
             inets_app,
 	    inets_service,	                  
 	    inets_regexp,	                  
-	    inets_trace,	                  
+	    inets_trace,
+            inets_lib,
+            inets_time_compat,
 
             %% FTP
             ftp,
@@ -91,7 +93,6 @@
             mod_get,
             mod_head,
             mod_htaccess,
-            mod_include,
             mod_log,
             mod_range,
             mod_responsecontrol,
diff --git a/lib/inets/src/inets_app/inets_lib.erl b/lib/inets/src/inets_app/inets_lib.erl
new file mode 100644
index 0000000000..fa6adaebd0
--- /dev/null
+++ b/lib/inets/src/inets_app/inets_lib.erl
@@ -0,0 +1,49 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2015-2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+-module(inets_lib).
+
+-export([millisec_passed/1, formated_timestamp/0, format_timestamp/1]).
+
+
+
+%% Help function, elapsed milliseconds since T0
+millisec_passed({_,_,_} = T0 ) ->
+    %% OTP 17 and earlier
+    timer:now_diff(inets_time_compat:timestamp(), T0) div 1000;
+
+millisec_passed(T0) ->
+    %% OTP 18
+    erlang:convert_time_unit(erlang:monotonic_time() - T0,
+			     native,
+			     micro_seconds) div 1000.
+
+%% Return formated time stamp (e.g. 2015:03:16 10:05:23 1234)
+formated_timestamp() ->
+    format_timestamp( os:timestamp() ).
+
+%% Return formated time stamp (e.g. 2015:03:16 10:05:23 1234)
+format_timestamp({_N1, _N2, N3} = Tme) ->
+    {Date, Time}   = calendar:now_to_datetime(Tme),
+    {YYYY,MM,DD}   = Date,
+    {Hour,Min,Sec} = Time,
+    FormatDate =
+        io_lib:format("~.4w:~.2.0w:~.2.0w ~.2.0w:~.2.0w:~.2.0w 4~w",
+                      [YYYY,MM,DD,Hour,Min,Sec,round(N3/1000)]),
+    lists:flatten(FormatDate).
diff --git a/lib/inets/src/inets_app/inets_time_compat.erl b/lib/inets/src/inets_app/inets_time_compat.erl
new file mode 100644
index 0000000000..d6297d9caf
--- /dev/null
+++ b/lib/inets/src/inets_app/inets_time_compat.erl
@@ -0,0 +1,71 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2015-2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+%% This module is created to be able to execute on ERTS versions both
+%% earlier and later than 7.0.
+
+-module(inets_time_compat).
+
+%% We don't want warnings about the use of erlang:now/0 in
+%% this module.
+-compile(nowarn_deprecated_function).
+
+-export([monotonic_time/0,
+         timestamp/0,
+         unique_integer/0,
+         unique_integer/1]).
+
+monotonic_time() ->
+    try
+	erlang:monotonic_time()
+    catch
+	error:undef ->
+	    %% Use Erlang system time as monotonic time
+	    erlang_system_time_fallback()
+    end.
+
+timestamp() ->
+    try
+	erlang:timestamp()
+    catch
+	error:undef ->
+	    erlang:now()
+    end.
+
+unique_integer() ->
+    try
+	erlang:unique_integer()
+    catch
+	error:undef ->
+            erlang_system_time_fallback()
+    end.
+
+unique_integer(Modifiers) ->
+    try
+	erlang:unique_integer(Modifiers)
+    catch
+	error:badarg ->
+	    erlang:error(badarg, [Modifiers]);
+	error:undef ->
+            erlang_system_time_fallback()
+    end.
+
+erlang_system_time_fallback() ->
+    {MS, S, US} = erlang:now(),
+    (MS*1000000+S)*1000000+US.
diff --git a/lib/inets/src/inets_app/inets_trace.erl b/lib/inets/src/inets_app/inets_trace.erl
index 8911f65897..cb6d6d8bdb 100644
--- a/lib/inets/src/inets_app/inets_trace.erl
+++ b/lib/inets/src/inets_app/inets_trace.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2011-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2011-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -228,21 +228,24 @@ handle_trace({trace_ts, _Who, call,
                [_Sev, "stop trace", stop_trace, [stop_trace]]},
               Timestamp},
              {_, standard_io} = Fd) ->
-    (catch io:format(standard_io, "stop trace at ~s~n", [format_timestamp(Timestamp)])),
+    (catch io:format(standard_io, "stop trace at ~s~n",
+                     [inets_lib:format_timestamp(Timestamp)])),
     Fd;
 handle_trace({trace_ts, _Who, call,
               {?MODULE, report_event,
                [_Sev, "stop trace", stop_trace, [stop_trace]]},
               Timestamp},
              standard_io = Fd) ->
-    (catch io:format(Fd, "stop trace at ~s~n", [format_timestamp(Timestamp)])),
+    (catch io:format(Fd, "stop trace at ~s~n",
+                     [inets_lib:format_timestamp(Timestamp)])),
     Fd;
 handle_trace({trace_ts, _Who, call,
               {?MODULE, report_event,
                [_Sev, "stop trace", stop_trace, [stop_trace]]},
               Timestamp},
              {_Service, Fd}) ->
-    (catch io:format(Fd, "stop trace at ~s~n", [format_timestamp(Timestamp)])),
+    (catch io:format(Fd, "stop trace at ~s~n",
+                     [inets_lib:format_timestamp(Timestamp)])),
     (catch file:close(Fd)),
     closed_file;
 handle_trace({trace_ts, _Who, call,
@@ -250,7 +253,8 @@ handle_trace({trace_ts, _Who, call,
                [_Sev, "stop trace", stop_trace, [stop_trace]]},
               Timestamp},
              Fd) ->
-    (catch io:format(Fd, "stop trace at ~s~n", [format_timestamp(Timestamp)])),
+    (catch io:format(Fd, "stop trace at ~s~n",
+                     [inets_lib:format_timestamp(Timestamp)])),
     (catch file:close(Fd)),
     closed_file;
 handle_trace({trace_ts, Who, call,
@@ -280,7 +284,7 @@ print_inets_trace(Fd, Sev, Timestamp, Who, Label, Service, Content) ->
     do_print_inets_trace(Fd, Sev, Timestamp, Who, Label, Service, Content).
 
 do_print_inets_trace(Fd, Sev, Timestamp, Who, Label, Service, Content) ->
-    Ts = format_timestamp(Timestamp),
+    Ts = inets_lib:format_timestamp(Timestamp),
     io:format(Fd, "[inets ~w trace ~w ~w ~s] ~s "
               "~n   Content: ~p"
               "~n",
@@ -307,7 +311,7 @@ do_print_trace(Fd, {trace, Who, What, Where, Extra}) ->
               "~n", [Who, What, Where, Extra]);
 
 do_print_trace(Fd, {trace_ts, Who, What, Where, When}) ->
-    Ts = format_timestamp(When),
+    Ts = inets_lib:format_timestamp(When),
     io:format(Fd, "[trace ~s]"
               "~n   Who:   ~p"
               "~n   What:  ~p"
@@ -315,7 +319,7 @@ do_print_trace(Fd, {trace_ts, Who, What, Where, When}) ->
               "~n", [Ts, Who, What, Where]);
 
 do_print_trace(Fd, {trace_ts, Who, What, Where, Extra, When}) ->
-    Ts = format_timestamp(When),
+    Ts = inets_lib:format_timestamp(When),
     io:format(Fd, "[trace ~s]"
               "~n   Who:   ~p"
               "~n   What:  ~p"
@@ -330,7 +334,7 @@ do_print_trace(Fd, {seq_trace, What, Where}) ->
               "~n", [What, Where]);
 
 do_print_trace(Fd, {seq_trace, What, Where, When}) ->
-    Ts = format_timestamp(When),
+    Ts = inets_lib:format_timestamp(When),
     io:format(Fd, "[seq trace ~s]"
               "~n   What:       ~p"
               "~n   Where:      ~p"
@@ -345,13 +349,3 @@ do_print_trace(Fd, Trace) ->
               "~n", [Trace]).
 
 
-format_timestamp({_N1, _N2, N3} = Now) ->
-    {Date, Time}   = calendar:now_to_datetime(Now),
-    {YYYY,MM,DD}   = Date,
-    {Hour,Min,Sec} = Time,
-    FormatDate =
-        io_lib:format("~.4w:~.2.0w:~.2.0w ~.2.0w:~.2.0w:~.2.0w 4~w",
-                      [YYYY,MM,DD,Hour,Min,Sec,round(N3/1000)]),
-    lists:flatten(FormatDate).
-
-
diff --git a/lib/inets/src/tftp/tftp_logger.erl b/lib/inets/src/tftp/tftp_logger.erl
index 0c3620e665..231a705371 100644
--- a/lib/inets/src/tftp/tftp_logger.erl
+++ b/lib/inets/src/tftp/tftp_logger.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2008-2009. All Rights Reserved.
+%% Copyright Ericsson AB 2008-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -84,8 +84,8 @@ info_msg(Format, Data) ->
 %%-------------------------------------------------------------------
 
 add_timestamp(Format, Data) ->
-    Now = {_MegaSecs, _Secs, _MicroSecs} = erlang:now(),
-    {{_Y, _Mo, _D}, {H, Mi, S}} = calendar:now_to_universal_time(Now),
+    Time = inets_time_compat:timestamp(),
+    {{_Y, _Mo, _D}, {H, Mi, S}} = calendar:now_to_universal_time(Time),
     %% {"~p-~s-~sT~s:~s:~sZ,~6.6.0w tftp: " ++ Format ++ "\n", 
     %%  [Y, t(Mo), t(D), t(H), t(Mi), t(S), MicroSecs | Data]}.
     {"~s:~s:~s tftp: " ++ Format, [t(H), t(Mi), t(S) | Data]}.
diff --git a/lib/inets/src/tftp/tftp_sup.erl b/lib/inets/src/tftp/tftp_sup.erl
index 1cafcc1069..7a0dcffc90 100644
--- a/lib/inets/src/tftp/tftp_sup.erl
+++ b/lib/inets/src/tftp/tftp_sup.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2005-2009. All Rights Reserved.
+%% Copyright Ericsson AB 2005-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -93,7 +93,7 @@ unique_name(Options) ->
 	{value, {_, Port}} when is_integer(Port), Port > 0 -> 
 	    {tftpd, Port};
 	_ ->
-	    {tftpd, erlang:now()}
+	    {tftpd, inets_time_compat:unique_integer([positive])}
     end.
 
 default_kill_after() ->
diff --git a/lib/inets/test/erl_make_certs.erl b/lib/inets/test/erl_make_certs.erl
index 22dc951ac1..6c168a5704 100644
--- a/lib/inets/test/erl_make_certs.erl
+++ b/lib/inets/test/erl_make_certs.erl
@@ -204,7 +204,7 @@ issuer_der(Issuer) ->
     Subject.
 
 subject(undefined, IsRootCA) ->
-    User = if IsRootCA -> "RootCA"; true -> user() end,
+    User = if IsRootCA -> "RootCA"; true -> os:getenv("USER", "test_user") end,
     Opts = [{email, User ++ "@erlang.org"},
 	    {name, User},
 	    {city, "Stockholm"},
@@ -215,14 +215,6 @@ subject(undefined, IsRootCA) ->
 subject(Opts, _) ->
     subject(Opts).
 
-user() ->
-    case os:getenv("USER") of
-	false ->
-	    "test_user";
-	User ->
-	    User
-    end.
-
 subject(SubjectOpts) when is_list(SubjectOpts) ->
     Encode = fun(Opt) ->
 		     {Type,Value} = subject_enc(Opt),
diff --git a/lib/inets/test/ftp_suite_lib.erl b/lib/inets/test/ftp_suite_lib.erl
index daee1bdcdc..b637832101 100644
--- a/lib/inets/test/ftp_suite_lib.erl
+++ b/lib/inets/test/ftp_suite_lib.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2005-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2005-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -1352,9 +1352,9 @@ do_delete(Pid, Config) ->
     ok.
 
 do_mkdir(Pid) ->
-    {A, B, C} = erlang:now(),
-    NewDir = "nisse_" ++ integer_to_list(A) ++ "_" ++
-	integer_to_list(B) ++ "_" ++ integer_to_list(C),
+    NewDir = "earl_" ++
+        integer_to_list(inets_time_compat:unique_integer([positive])),
+
     ok = ftp:cd(Pid, "incoming"),
     {ok, CurrDir} = ftp:pwd(Pid),
     {error, efnamena} = ftp:mkdir(Pid, NewDir++"\r\nCWD ."),
diff --git a/lib/inets/test/httpc_SUITE.erl b/lib/inets/test/httpc_SUITE.erl
index 4b1c6931d2..ab7ffadf75 100644
--- a/lib/inets/test/httpc_SUITE.erl
+++ b/lib/inets/test/httpc_SUITE.erl
@@ -28,6 +28,7 @@
 -include_lib("common_test/include/ct.hrl").
 -include("inets_test_lib.hrl").
 -include("http_internal.hrl").
+-include("httpc_internal.hrl").
 %% Note: This directive should only be used in test suites.
 -compile(export_all).
 
@@ -106,6 +107,7 @@ only_simulated() ->
      empty_response_header,
      remote_socket_close,
      remote_socket_close_async,
+     process_leak_on_keepalive,
      transfer_encoding,
      transfer_encoding_identity,
      redirect_loop,
@@ -913,6 +915,33 @@ remote_socket_close_async(Config) when is_list(Config) ->
 
 %%-------------------------------------------------------------------------
 
+process_leak_on_keepalive(Config) ->
+    {ok, ClosedSocket} = gen_tcp:listen(6666, [{active, false}]),
+    ok = gen_tcp:close(ClosedSocket),
+    Request  = {url(group_name(Config), "/dummy.html", Config), []},
+    HttpcHandlers0 = supervisor:which_children(httpc_handler_sup),
+    {ok, {{_, 200, _}, _, Body}} = httpc:request(get, Request, [], []),
+    HttpcHandlers1 = supervisor:which_children(httpc_handler_sup),
+    ChildrenCount = supervisor:count_children(httpc_handler_sup),
+    %% Assuming that the new handler will be selected for keep_alive
+    %% which could not be the case if other handlers existed
+    [{undefined, Pid, worker, [httpc_handler]}] =
+        ordsets:to_list(
+          ordsets:subtract(ordsets:from_list(HttpcHandlers1),
+                           ordsets:from_list(HttpcHandlers0))),
+    sys:replace_state(
+      Pid, fun (State) ->
+                   Session = element(3, State),
+                   setelement(3, State, Session#session{socket=ClosedSocket})
+           end),
+    {ok, {{_, 200, _}, _, Body}} = httpc:request(get, Request, [], []),
+    %% bad handler with the closed socket should get replaced by
+    %% the new one, so children count should stay the same
+    ChildrenCount = supervisor:count_children(httpc_handler_sup),
+    ok.
+
+%%-------------------------------------------------------------------------
+
 stream_to_pid(Config) when is_list(Config) ->
     ReceiverPid = create_receiver(pid),
     Receiver    = ReceiverPid,
@@ -1909,12 +1938,13 @@ run_clients(NumClients, ServerPort, SeqNumServer) ->
 wait4clients([], _Timeout) ->
     ok;
 wait4clients(Clients, Timeout) when Timeout > 0 ->
-    Time = now_ms(),
+    Time = inets_time_compat:monotonic_time(),
+
     receive
 	{'DOWN', _MRef, process, Pid, normal} ->
 	    {value, {Id, _, _}} = lists:keysearch(Pid, 2, Clients),
 	    NewClients = lists:keydelete(Id, 1, Clients),
-	    wait4clients(NewClients, Timeout - (now_ms() - Time));
+	    wait4clients(NewClients, Timeout - inets_lib:millisec_passed(Time));
 	{'DOWN', _MRef, process, Pid, Reason} ->
 	    {value, {Id, _, _}} = lists:keysearch(Pid, 2, Clients),
 	    ct:fail({bad_client_termination, Id, Reason})
@@ -2007,14 +2037,10 @@ parse_connection_type(Request) ->
 	"keep-alive" -> keep_alive
     end.
 
-%% Time in milli seconds
-now_ms() ->
-    {A,B,C} = erlang:now(),
-    A*1000000000+B*1000+(C div 1000).
-
 set_random_seed() ->
-    {_, _, Micros} = now(),
-    A = erlang:phash2([make_ref(), self(), Micros]),
+    Unique = inets_time_compat:unique_integer(),
+
+    A = erlang:phash2([make_ref(), self(), Unique]),
     random:seed(A, A, A).
 
 
diff --git a/lib/inets/test/httpc_proxy_SUITE.erl b/lib/inets/test/httpc_proxy_SUITE.erl
index ddd23d0c65..fbd85e9e42 100644
--- a/lib/inets/test/httpc_proxy_SUITE.erl
+++ b/lib/inets/test/httpc_proxy_SUITE.erl
@@ -79,7 +79,7 @@ local_proxy_cases() ->
 %%--------------------------------------------------------------------
 
 init_per_suite(Config0) ->
-    case init_apps([crypto,public_key], Config0) of
+    case init_apps(suite_apps(), Config0) of
 	Config when is_list(Config) ->
 	    make_cert_files(dsa, "server-", Config),
 	    Config;
@@ -94,7 +94,7 @@ end_per_suite(_Config) ->
 %% internal functions
 
 suite_apps() ->
-    [crypto,public_key].
+    [asn1,crypto,public_key].
     
 %%--------------------------------------------------------------------
 
diff --git a/lib/inets/test/httpd_SUITE.erl b/lib/inets/test/httpd_SUITE.erl
index 1457f735ad..c90887bcf3 100644
--- a/lib/inets/test/httpd_SUITE.erl
+++ b/lib/inets/test/httpd_SUITE.erl
@@ -68,7 +68,8 @@ all() ->
      {group, http_security}, 
      {group, https_security},
      {group, http_reload},
-     {group, https_reload}
+     {group, https_reload},
+     {group, http_mime_types} 
     ].
 
 groups() ->
@@ -93,7 +94,8 @@ groups() ->
      {https_security, [], [{group, security}]},
      {http_reload, [], [{group, reload}]},
      {https_reload, [], [{group, reload}]},
-     {limit, [],  [max_clients_1_1, max_clients_1_0, max_clients_0_9]}, 
+     {http_mime_types, [], [alias_1_1, alias_1_0, alias_0_9]},
+     {limit, [],  [max_clients_1_1, max_clients_1_0, max_clients_0_9]},  
      {custom, [],  [customize]},  
      {reload, [], [non_disturbing_reconfiger_dies,
 		   disturbing_reconfiger_dies,
@@ -132,7 +134,6 @@ http_get() ->
      get, 
      %%actions, Add configuration so that this test mod_action
      esi, 
-     ssi, 
      content_length, 
      bad_hex, 
      missing_CR,
@@ -199,7 +200,8 @@ init_per_group(Group, Config0)  when  Group == http_basic;
 				      Group == http_auth_api_dets;
 				      Group == http_auth_api_mnesia;
 				      Group == http_security;
-				      Group == http_reload
+				      Group == http_reload;
+                                      Group == http_mime_types
 				      ->
     ok = start_apps(Group),
     init_httpd(Group, [{type, ip_comm} | Config0]);
@@ -243,7 +245,8 @@ end_per_group(Group, _Config)  when  Group == http_basic;
 				     Group == http_auth_api_mnesia;
 				     Group == http_htaccess;
 				     Group == http_security;
-				     Group == http_reload
+				     Group == http_reload;
+                                     Group == http_mime_types
 				     ->
     inets:stop();
 end_per_group(Group, _Config) when  Group == https_basic;
@@ -559,22 +562,6 @@ ipv6(Config) when is_list(Config) ->
      end.
 
 %%-------------------------------------------------------------------------
-ssi() ->
-    [{doc, "HTTP GET server side include test"}].
-ssi(Config) when is_list(Config) -> 
-    Version = ?config(http_version, Config),
-    Host = ?config(host, Config),
-    Type = ?config(type, Config),
-    ok = httpd_test_lib:verify_request(?config(type, Config), Host, ?config(port, Config),  
-				       transport_opts(Type, Config),
-				       ?config(node, Config),
-				       http_request("GET /fsize.shtml ", Version, Host),
-				       [{statuscode, 200},
-					{header, "Content-Type", "text/html"},
-					{header, "Date"},
-					{header, "Server"},
-				       	{version, Version}]).
-%%-------------------------------------------------------------------------
 htaccess_1_1(Config) when is_list(Config) -> 
     htaccess([{http_version, "HTTP/1.1"} | Config]).
 
@@ -864,6 +851,24 @@ cgi_chunked_encoding_test(Config) when is_list(Config) ->
 					    ?config(node, Config),
 					    Requests).
 %%-------------------------------------------------------------------------
+alias_1_1() ->
+    [{doc, "Test mod_alias"}].
+
+alias_1_1(Config) when is_list(Config) ->
+    alias([{http_version, "HTTP/1.1"} | Config]).
+
+alias_1_0() ->
+    [{doc, "Test mod_alias"}].
+  
+alias_1_0(Config) when is_list(Config) ->
+    alias([{http_version, "HTTP/1.0"} | Config]).
+
+alias_0_9() ->
+    [{doc, "Test mod_alias"}].
+  
+alias_0_9(Config) when is_list(Config) ->
+    alias([{http_version, "HTTP/0.9"} | Config]).
+
 alias() ->
     [{doc, "Test mod_alias"}].
 
@@ -922,7 +927,6 @@ trace(Config) when is_list(Config) ->
     Cb = ?config(version_cb, Config),
     Cb:trace(?config(type, Config), ?config(port, Config), 
 	     ?config(host, Config), ?config(node, Config)).
-
 %%-------------------------------------------------------------------------
 light() ->
     ["Test light load"].
@@ -1307,22 +1311,26 @@ setup_server_dirs(ServerRoot, DocRoot, DataDir) ->
     CgiDir =  filename:join(ServerRoot, "cgi-bin"),
     AuthDir =  filename:join(ServerRoot, "auth"),
     PicsDir =  filename:join(ServerRoot, "icons"),
+    ConfigDir =  filename:join(ServerRoot, "config"),
 
     ok = file:make_dir(ServerRoot),
     ok = file:make_dir(DocRoot),
     ok = file:make_dir(CgiDir),
     ok = file:make_dir(AuthDir),
     ok = file:make_dir(PicsDir),
+    ok = file:make_dir(ConfigDir),
 
     DocSrc = filename:join(DataDir, "server_root/htdocs"),    
     AuthSrc = filename:join(DataDir, "server_root/auth"),    
     CgiSrc =  filename:join(DataDir, "server_root/cgi-bin"),    
     PicsSrc =  filename:join(DataDir, "server_root/icons"),    
+    ConfigSrc = filename:join(DataDir, "server_root/config"),
     
     inets_test_lib:copy_dirs(DocSrc, DocRoot),
     inets_test_lib:copy_dirs(AuthSrc, AuthDir),
     inets_test_lib:copy_dirs(CgiSrc, CgiDir),
     inets_test_lib:copy_dirs(PicsSrc, PicsDir),
+    inets_test_lib:copy_dirs(ConfigSrc, ConfigDir),
         
     Cgi = case test_server:os_type() of
 	      {win32, _} ->
@@ -1362,7 +1370,8 @@ start_apps(Group) when  Group == http_basic;
 			Group == http_auth_api_mnesia;			
 			Group == http_htaccess;
 			Group == http_security;
-			Group == http_reload->
+			Group == http_reload;
+                        Group == http_mime_types->
     inets_test_lib:start_apps([inets]).
 
 server_start(_, HttpdConfig) ->
@@ -1454,6 +1463,11 @@ server_config(http_security, Config) ->
 server_config(https_security, Config) ->
     ServerRoot = ?config(server_root, Config),
     tl(auth_conf(ServerRoot)) ++ security_conf(ServerRoot) ++ server_config(https, Config);
+server_config(http_mime_types, Config0) ->
+    Config1 = basic_conf() ++  server_config(http, Config0),
+    ServerRoot = ?config(server_root, Config0),
+    MimeTypesFile = filename:join([ServerRoot,"config", "mime.types"]),
+    [{mime_types, MimeTypesFile} | proplists:delete(mime_types, Config1)];
 
 server_config(http, Config) ->
     ServerRoot = ?config(server_root, Config),
diff --git a/lib/inets/test/httpd_SUITE_data/server_root/config/mime.types b/lib/inets/test/httpd_SUITE_data/server_root/config/mime.types
new file mode 100644
index 0000000000..b68cff21a6
--- /dev/null
+++ b/lib/inets/test/httpd_SUITE_data/server_root/config/mime.types
@@ -0,0 +1,4 @@
+text/html   html
+text/html   htm
+text/html   shtml
+image/gif   gif
diff --git a/lib/inets/test/httpd_block.erl b/lib/inets/test/httpd_block.erl
index 9790623b6f..a95a5ee62d 100644
--- a/lib/inets/test/httpd_block.erl
+++ b/lib/inets/test/httpd_block.erl
@@ -292,7 +292,7 @@ httpd_restart(Addr, Port) ->
     end.
     
 make_name(Addr, Port) ->
-    httpd_util:make_name("httpd", Addr, Port).
+    httpd_util:make_name("httpd", Addr, Port, default).
 
 get_admin_state(_, _Host, Port) ->
     Name = make_name(undefined, Port),
diff --git a/lib/inets/test/httpd_time_test.erl b/lib/inets/test/httpd_time_test.erl
index 0bb457f9b9..7dd61a5517 100644
--- a/lib/inets/test/httpd_time_test.erl
+++ b/lib/inets/test/httpd_time_test.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2001-2011. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -116,13 +116,14 @@ main(N, SocketType, Host, Port, Time)
 loop(Pollers, Timeout) ->
     d("loop -> entry when"
       "~n   Timeout: ~p", [Timeout]),
-    Start = t(), 
+    Start = inets_time_compat:monotonic_time(),
+
     receive 
 	{'EXIT', Pid, {poller_stat_failure, SocketType, Host, Port, Time, Reason}} ->
 	    case is_poller(Pid, Pollers) of
 		true ->
 		    error_msg("received unexpected exit from poller ~p~n"
-			      "befor completion of test "
+			      "before completion of test "
 			      "after ~p micro sec"
 			      "~n   SocketType: ~p"
 			      "~n   Host:       ~p"
@@ -133,7 +134,7 @@ loop(Pollers, Timeout) ->
 		false ->
 		    error_msg("received unexpected ~p from ~p"
 			      "befor completion of test", [Reason, Pid]),
-		    loop(Pollers, to(Timeout, Start))
+		    loop(Pollers, Timeout - inets_lib:millisec_passed(Start))
 	    end;
 
 	{poller_stat_failure, Pid, {SocketType, Host, Port, Time, Reason}} ->
@@ -412,35 +413,6 @@ validate(ExpStatusCode, _SocketType, _Socket, Response) ->
     end.
 
 
-trash_the_rest(Socket, N) ->
-    receive
-	{ssl, Socket, Trash} ->
-            trash_the_rest(Socket, add(N,sz(Trash)));
-	{ssl_closed, Socket} ->
-	    N;
-	{ssl_error, Socket, Error} ->
-	    exit({connection_error, Error});
-	
-        {tcp, Socket, Trash} ->
-            trash_the_rest(Socket, add(N,sz(Trash)));
-        {tcp_closed, Socket} ->
-            N;
-	{tcp_error, Socket, Error} ->
-	    exit({connection_error, Error})
-
-    after 10000 ->
-            exit({connection_timed_out, N})
-    end.
-
-
-add(N1,N2) when is_integer(N1) andalso is_integer(N2) ->
-    N1 + N2;
-add(N1,_) when is_integer(N1) ->
-    N1;
-add(_,N2) when is_integer(N2) ->
-    N2.
-
-
 sz(L) when is_list(L) ->
     length(lists:flatten(L));
 sz(B) when is_binary(B) ->
@@ -505,17 +477,6 @@ status_to_message(Code) -> io_lib:format("Unknown status code: ~p",[Code]).
 
 %% ----------------------------------------------------------------
 
-to(To, Start) ->
-    To - (t() - Start).
-
-%% Time in milli seconds
-t() ->
-    {A,B,C} = erlang:now(),
-    A*1000000000+B*1000+(C div 1000).
-
-
-%% ----------------------------------------------------------------
-
 
 
 % close(Socket) ->
diff --git a/lib/inets/test/inets_SUITE.erl b/lib/inets/test/inets_SUITE.erl
index 6510c70d08..a07dc79c02 100644
--- a/lib/inets/test/inets_SUITE.erl
+++ b/lib/inets/test/inets_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1997-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -549,25 +549,12 @@ tsf(Reason) ->
 tsp(F) ->
     tsp(F, []).
 tsp(F, A) ->
-    Timestamp = formated_timestamp(), 
+    Timestamp = inets_lib:formated_timestamp(),
     test_server:format("** ~s ** ~p ~p:" ++ F ++ "~n", [Timestamp, self(), ?MODULE | A]).
 
 i(F) ->
     i(F, []).
 
 i(F, A) ->
-    Timestamp = formated_timestamp(), 
+    Timestamp = inets_lib:formated_timestamp(),
     io:format("*** ~s ~w:" ++ F ++ "~n", [Timestamp, ?MODULE | A]).
-
-formated_timestamp() ->
-    format_timestamp( os:timestamp() ).
-
-format_timestamp({_N1, _N2, N3} = Now) ->
-    {Date, Time}   = calendar:now_to_datetime(Now),
-    {YYYY,MM,DD}   = Date,
-    {Hour,Min,Sec} = Time,
-    FormatDate =
-        io_lib:format("~.4w:~.2.0w:~.2.0w ~.2.0w:~.2.0w:~.2.0w 4~w",
-                      [YYYY,MM,DD,Hour,Min,Sec,round(N3/1000)]),
-    lists:flatten(FormatDate).
-
diff --git a/lib/inets/test/inets_app_test.erl b/lib/inets/test/inets_app_test.erl
index eabfa69f7c..22d6e25c87 100644
--- a/lib/inets/test/inets_app_test.erl
+++ b/lib/inets/test/inets_app_test.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2002-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2002-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -32,19 +32,6 @@
 
 
 %% Test server callbacks
-init_per_testcase(undef_funcs, Config) ->
-    NewConfig = lists:keydelete(watchdog, 1, Config),
-    Dog = test_server:timetrap(inets_test_lib:minutes(10)),
-
-    %% We need to check if there is a point to run this test.
-    %% On some platforms, crypto will not build, which in turn
-    %% causes ssl to not build (at this time, this will
-    %% change in the future).
-    %% So, we first check if we can start crypto, and if not,
-    %% we skip this test case!
-    ?ENSURE_STARTED(crypto),
-
-    [{watchdog, Dog}| NewConfig];
 init_per_testcase(_, Config) ->
     Config.
 
@@ -54,7 +41,7 @@ end_per_testcase(_Case, Config) ->
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 all() -> 
-    [fields, modules, exportall, app_depend, undef_funcs].
+    [fields, modules, exportall, app_depend].
 
 groups() -> 
     [].
@@ -244,56 +231,6 @@ check_apps([App|Apps]) ->
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
-undef_funcs(suite) ->
-    [];
-undef_funcs(doc) ->
-    [];
-undef_funcs(Config) when is_list(Config) ->
-    App            = inets,
-    AppFile        = key1search(app_file, Config),
-    Mods           = key1search(modules, AppFile),
-    Root           = code:root_dir(),
-    LibDir         = code:lib_dir(App),
-    EbinDir        = filename:join([LibDir,"ebin"]),
-    XRefTestName   = undef_funcs_make_name(App, xref_test_name),
-    {ok, XRef}     = xref:start(XRefTestName),
-    ok             = xref:set_default(XRef, 
-				      [{verbose,false},{warnings,false}]),
-    XRefName       = undef_funcs_make_name(App, xref_name),
-    {ok, XRefName} = xref:add_release(XRef, Root, {name, XRefName}),
-    {ok, App}      = xref:replace_application(XRef, App, EbinDir),
-    {ok, Undefs}   = xref:analyze(XRef, undefined_function_calls),
-    xref:stop(XRef),
-    analyze_undefined_function_calls(Undefs, Mods, []).
-
-analyze_undefined_function_calls([], _, []) ->
-    ok;
-analyze_undefined_function_calls([], _, AppUndefs) ->
-    exit({suite_failed, {undefined_function_calls, AppUndefs}});
-analyze_undefined_function_calls([{{Mod, _F, _A}, _C} = AppUndef|Undefs], 
-				 AppModules, AppUndefs) ->
-    %% Check that this module is our's
-    case lists:member(Mod,AppModules) of
-	true ->
-	    {Calling,Called} = AppUndef,
-	    {Mod1,Func1,Ar1} = Calling,
-	    {Mod2,Func2,Ar2} = Called,
-	    io:format("undefined function call: "
-		      "~n   ~w:~w/~w calls ~w:~w/~w~n", 
-		      [Mod1,Func1,Ar1,Mod2,Func2,Ar2]),
-	    analyze_undefined_function_calls(Undefs, AppModules, 
-					     [AppUndef|AppUndefs]);
-	false ->
-	    io:format("dropping ~p~n", [Mod]),
-	    analyze_undefined_function_calls(Undefs, AppModules, AppUndefs)
-    end.
-
-%% This function is used simply to avoid cut-and-paste errors later...
-undef_funcs_make_name(App, PostFix) ->
-    list_to_atom(atom_to_list(App) ++ "_" ++ atom_to_list(PostFix)).
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
 
 fail(Reason) ->
     exit({suite_failed, Reason}).
diff --git a/lib/inets/test/inets_sup_SUITE.erl b/lib/inets/test/inets_sup_SUITE.erl
index 60979278fc..1479681e30 100644
--- a/lib/inets/test/inets_sup_SUITE.erl
+++ b/lib/inets/test/inets_sup_SUITE.erl
@@ -22,14 +22,14 @@
 
 -include_lib("common_test/include/ct.hrl").
 
-
 %% Note: This directive should only be used in test suites.
 -compile(export_all).
 
 suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() -> 
-    [default_tree, ftpc_worker, tftpd_worker, httpd_subtree,
+    [default_tree, ftpc_worker, tftpd_worker, 
+     httpd_subtree, httpd_subtree_profile,
      httpc_subtree].
 
 groups() -> 
@@ -41,54 +41,29 @@ init_per_group(_GroupName, Config) ->
 end_per_group(_GroupName, Config) ->
     Config.
 
-
-%%--------------------------------------------------------------------
-%% Function: init_per_suite(Config) -> Config
-%% Config - [tuple()]
-%%   A list of key/value pairs, holding the test case configuration.
-%% Description: Initiation before the whole suite
-%%
-%% Note: This function is free to add any key/value pairs to the Config
-%% variable, but should NOT alter/remove any existing entries.
-%%--------------------------------------------------------------------
 init_per_suite(Config) ->
     Config.
 
-%%--------------------------------------------------------------------
-%% Function: end_per_suite(Config) -> _
-%% Config - [tuple()]
-%%   A list of key/value pairs, holding the test case configuration.
-%% Description: Cleanup after the whole suite
-%%--------------------------------------------------------------------
 end_per_suite(_) ->
     inets:stop(),
     ok.
 
-%%--------------------------------------------------------------------
-%% Function: init_per_testcase(Case, Config) -> Config
-%% Case - atom()
-%%   Name of the test case that is about to be run.
-%% Config - [tuple()]
-%%   A list of key/value pairs, holding the test case configuration.
-%%
-%% Description: Initiation before each test case
-%%
-%% Note: This function is free to add any key/value pairs to the Config
-%% variable, but should NOT alter/remove any existing entries.
-%%--------------------------------------------------------------------
 init_per_testcase(httpd_subtree, Config) ->
     Dog = test_server:timetrap(?t:minutes(1)),
     NewConfig = lists:keydelete(watchdog, 1, Config),
     PrivDir = ?config(priv_dir, Config), 			   
-   
+    Dir = filename:join(PrivDir, "root"),
+    ok = file:make_dir(Dir),
+
     SimpleConfig  = [{port, 0},
 		     {server_name,"www.test"},
 		     {modules, [mod_get]},
-		     {server_root, PrivDir},
-		     {document_root, PrivDir},
+		     {server_root, Dir},
+		     {document_root, Dir},
 		     {bind_address, any},
 		     {ipfamily, inet}],
     try
+	inets:stop(),
 	inets:start(),
 	inets:start(httpd, SimpleConfig),
 	[{watchdog, Dog} | NewConfig]
@@ -97,7 +72,33 @@ init_per_testcase(httpd_subtree, Config) ->
 	    inets:stop(),
 	    exit({failed_starting_inets, Reason})
     end;
-    
+
+init_per_testcase(httpd_subtree_profile, Config) ->
+    Dog = test_server:timetrap(?t:minutes(1)),
+    NewConfig = lists:keydelete(watchdog, 1, Config),
+    PrivDir = ?config(priv_dir, Config), 			   
+    Dir = filename:join(PrivDir, "root"),
+    ok = file:make_dir(Dir),
+
+    SimpleConfig  = [{port, 0},
+		     {server_name,"www.test"},
+		     {modules, [mod_get]},
+		     {server_root, Dir},
+		     {document_root, Dir},
+		     {bind_address, any},
+		     {profile, test_profile},
+		     {ipfamily, inet}],
+    try
+	inets:stop(),
+	inets:start(),
+	{ok, _} = inets:start(httpd, SimpleConfig),
+	[{watchdog, Dog} | NewConfig]
+    catch
+	_:Reason ->
+	    inets:stop(),
+	    exit({failed_starting_inets, Reason})
+    end;
+     
 
 init_per_testcase(_Case, Config) ->
     Dog = test_server:timetrap(?t:minutes(5)),
@@ -106,20 +107,13 @@ init_per_testcase(_Case, Config) ->
     ok = inets:start(),
     [{watchdog, Dog} | NewConfig].
 
-
-%%--------------------------------------------------------------------
-%% Function: end_per_testcase(Case, Config) -> _
-%% Case - atom()
-%%   Name of the test case that is about to be run.
-%% Config - [tuple()]
-%%   A list of key/value pairs, holding the test case configuration.
-%% Description: Cleanup after each test case
-%%--------------------------------------------------------------------
-end_per_testcase(httpd_subtree, Config) ->
+end_per_testcase(Case, Config) when Case == httpd_subtree;
+				    Case == httpd_subtree_profile ->
     Dog = ?config(watchdog, Config),
     test_server:timetrap_cancel(Dog),
-    PrivDir = ?config(priv_dir, Config), 			   
-    inets_test_lib:del_dirs(PrivDir),
+    PrivDir = ?config(priv_dir, Config), 	
+    Dir = filename:join(PrivDir, "root"),
+    inets_test_lib:del_dirs(Dir),
     ok;
 
 end_per_testcase(_, Config) ->
@@ -131,16 +125,9 @@ end_per_testcase(_, Config) ->
 %%-------------------------------------------------------------------------
 %% Test cases starts here.
 %%-------------------------------------------------------------------------
-
-
-%%-------------------------------------------------------------------------
-%% default_tree
-%%-------------------------------------------------------------------------
-default_tree(doc) ->
-    ["Makes sure the correct processes are started and linked," 
-     "in the default case."];
-default_tree(suite) ->
-    [];
+default_tree() ->
+    [{doc, "Makes sure the correct processes are started and linked," 
+      "in the default case."}].
 default_tree(Config) when is_list(Config) ->
     TopSupChildren = supervisor:which_children(inets_sup),
     4 = length(TopSupChildren),
@@ -173,15 +160,9 @@ default_tree(Config) when is_list(Config) ->
 
     ok.
 
-
-%%-------------------------------------------------------------------------
-%% ftpc_worker
-%%-------------------------------------------------------------------------
-ftpc_worker(doc) ->
-    ["Makes sure the ftp worker processes are added and removed "
-     "appropriatly to/from the supervison tree."]; 
-ftpc_worker(suite) ->
-    [];
+ftpc_worker() ->
+    [{doc, "Makes sure the ftp worker processes are added and removed "
+      "appropriatly to/from the supervison tree."}].
 ftpc_worker(Config) when is_list(Config) ->
     [] = supervisor:which_children(ftp_sup),
     try
@@ -207,14 +188,8 @@ ftpc_worker(Config) when is_list(Config) ->
 	    {skip, "No available FTP servers"}
     end.
 
-
-%%-------------------------------------------------------------------------
-%% tftpd_worker
-%%-------------------------------------------------------------------------
-tftpd_worker(doc) ->
-    ["Makes sure the tftp sub tree is correct."]; 
-tftpd_worker(suite) ->
-    [];
+tftpd_worker() ->
+    [{doc, "Makes sure the tftp sub tree is correct."}].
 tftpd_worker(Config) when is_list(Config) ->
     [] = supervisor:which_children(tftp_sup),   
     {ok, Pid0} = inets:start(tftpd, [{host, inets_test_lib:hostname()}, 
@@ -228,22 +203,63 @@ tftpd_worker(Config) when is_list(Config) ->
     [] = supervisor:which_children(tftp_sup),
     ok.
 
+httpd_subtree() ->
+    [{doc, "Makes sure the httpd sub tree is correct."}].
+httpd_subtree(Config) when is_list(Config) ->
+    do_httpd_subtree(Config, default).
+
+httpd_subtree_profile(doc) ->
+    ["Makes sure the httpd sub tree is correct when using a profile"]; 
+httpd_subtree_profile(Config) when is_list(Config) ->
+    do_httpd_subtree(Config, test_profile).
+
+httpc_subtree() ->
+    [{doc, "Makes sure the httpd sub tree is correct."}]. 
+httpc_subtree(Config) when is_list(Config) ->
+    {ok, Foo} = inets:start(httpc, [{profile, foo}]),
+
+    {ok, Bar} = inets:start(httpc, [{profile, bar}], stand_alone),
+
+    HttpcChildren = supervisor:which_children(httpc_profile_sup),
+
+    {value, {httpc_manager, _, worker, [httpc_manager]}} =
+	lists:keysearch(httpc_manager, 1, HttpcChildren),
+
+    {value,{{httpc,foo}, _Pid, worker, [httpc_manager]}} = 
+	lists:keysearch({httpc, foo}, 1, HttpcChildren),
+    false = lists:keysearch({httpc, bar}, 1, HttpcChildren),
+    
+    inets:stop(httpc, Foo),
+    exit(Bar, normal).
 
 %%-------------------------------------------------------------------------
-%% httpd_subtree
+%% Internal functions
 %%-------------------------------------------------------------------------
-httpd_subtree(doc) ->
-    ["Makes sure the httpd sub tree is correct."]; 
-httpd_subtree(suite) ->
-    [];
-httpd_subtree(Config) when is_list(Config) ->
-    %% Check that we have the httpd top supervisor
+
+verify_child(Parent, Child, Type) ->
+    Children = supervisor:which_children(Parent),
+    verify_child(Children, Parent, Child, Type).
+
+verify_child([], Parent, Child, _Type) ->
+    {error, {child_not_found, Child, Parent}};
+verify_child([{Id, _Pid, Type2, Mods}|Children], Parent, Child, Type) ->
+    case lists:member(Child, Mods) of
+	true when (Type2 =:= Type) ->
+	    {ok, Id};
+	true when (Type2 =/= Type) ->
+	    {error, {wrong_type, Type2, Child, Parent}};
+	false ->
+	    verify_child(Children, Parent, Child, Type)
+    end.
+
+do_httpd_subtree(_Config, Profile) ->
+   %% Check that we have the httpd top supervisor
     {ok, _} = verify_child(inets_sup, httpd_sup, supervisor),
 
     %% Check that we have the httpd instance supervisor
     {ok, Id} = verify_child(httpd_sup, httpd_instance_sup, supervisor),
-    {httpd_instance_sup, Addr, Port} = Id,
-    Instance = httpd_util:make_name("httpd_instance_sup", Addr, Port),
+    {httpd_instance_sup, Addr, Port, Profile} = Id,
+    Instance = httpd_util:make_name("httpd_instance_sup", Addr, Port, Profile),
     
     %% Check that we have the expected httpd instance children
     {ok, _} = verify_child(Instance, httpd_connection_sup, supervisor),
@@ -252,7 +268,7 @@ httpd_subtree(Config) when is_list(Config) ->
     {ok, _} = verify_child(Instance, httpd_manager, worker),
 
     %% Check that the httpd instance acc supervisor has children
-    InstanceAcc = httpd_util:make_name("httpd_acceptor_sup", Addr, Port),
+    InstanceAcc = httpd_util:make_name("httpd_acceptor_sup", Addr, Port, Profile),
     case supervisor:which_children(InstanceAcc) of
 	[_ | _] -> 
 	    ok;
@@ -263,7 +279,7 @@ httpd_subtree(Config) when is_list(Config) ->
     
     %% Check that the httpd instance misc supervisor has no children
     io:format("httpd_subtree -> verify misc~n", []),
-    InstanceMisc = httpd_util:make_name("httpd_misc_sup", Addr, Port),
+    InstanceMisc = httpd_util:make_name("httpd_misc_sup", Addr, Port, Profile),
     case supervisor:which_children(InstanceMisc) of
 	[] ->
 	    ok;
@@ -273,45 +289,3 @@ httpd_subtree(Config) when is_list(Config) ->
     end,
     io:format("httpd_subtree -> done~n", []),
     ok.
-
-
-verify_child(Parent, Child, Type) ->
-    Children = supervisor:which_children(Parent),
-    verify_child(Children, Parent, Child, Type).
-
-verify_child([], Parent, Child, _Type) ->
-    {error, {child_not_found, Child, Parent}};
-verify_child([{Id, _Pid, Type2, Mods}|Children], Parent, Child, Type) ->
-    case lists:member(Child, Mods) of
-	true when (Type2 =:= Type) ->
-	    {ok, Id};
-	true when (Type2 =/= Type) ->
-	    {error, {wrong_type, Type2, Child, Parent}};
-	false ->
-	    verify_child(Children, Parent, Child, Type)
-    end.
-
-%%-------------------------------------------------------------------------
-%% httpc_subtree
-%%-------------------------------------------------------------------------
-httpc_subtree(doc) ->
-    ["Makes sure the httpc sub tree is correct."]; 
-httpc_subtree(suite) ->
-    [];
-httpc_subtree(Config) when is_list(Config) ->
-    {ok, Foo} = inets:start(httpc, [{profile, foo}]),
-
-    {ok, Bar} = inets:start(httpc, [{profile, bar}], stand_alone),
-
-    HttpcChildren = supervisor:which_children(httpc_profile_sup),
-
-    {value, {httpc_manager, _, worker, [httpc_manager]}} =
-	lists:keysearch(httpc_manager, 1, HttpcChildren),
-
-    {value,{{httpc,foo}, _Pid, worker, [httpc_manager]}} = 
-	lists:keysearch({httpc, foo}, 1, HttpcChildren),
-    false = lists:keysearch({httpc, bar}, 1, HttpcChildren),
-    
-    inets:stop(httpc, Foo),
-    exit(Bar, normal).
-
diff --git a/lib/inets/test/inets_test_lib.erl b/lib/inets/test/inets_test_lib.erl
index 4be9d9c8b3..7485971d3e 100644
--- a/lib/inets/test/inets_test_lib.erl
+++ b/lib/inets/test/inets_test_lib.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2001-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -498,13 +498,6 @@ close(essl,Socket) ->
 close(ip_comm,Socket) ->
     catch gen_tcp:close(Socket).
 
-millis() ->
-    erlang:now().
-
-millis_diff(A,B) ->
-    T1 = (element(1,A)*1000000) + element(2,A) + (element(3,A)/1000000),
-    T2 = (element(1,B)*1000000) + element(2,B) + (element(3,B)/1000000),
-    T1 - T2.
 
 hours(N)   -> trunc(N * 1000 * 60 * 60).
 minutes(N) -> trunc(N * 1000 * 60).
@@ -546,7 +539,7 @@ flush() ->
 tsp(F) ->
     tsp(F, []).
 tsp(F, A) ->
-    Timestamp = formated_timestamp(), 
+    Timestamp = inets_lib:formated_timestamp(),
     ct:pal("*** ~s ~p ~p " ++ F ++ "~n", 
 		       [Timestamp, node(), self() | A]).
 
@@ -559,18 +552,6 @@ tss(Time) ->
 timestamp() ->
     http_util:timestamp().
 
-formated_timestamp() ->
-    format_timestamp( os:timestamp() ).
-
-format_timestamp({_N1, _N2, N3} = Now) ->
-    {Date, Time}   = calendar:now_to_datetime(Now),
-    {YYYY,MM,DD}   = Date,
-    {Hour,Min,Sec} = Time,
-    FormatDate =
-        io_lib:format("~.4w:~.2.0w:~.2.0w ~.2.0w:~.2.0w:~.2.0w 4~w",
-                      [YYYY,MM,DD,Hour,Min,Sec,round(N3/1000)]),
-    lists:flatten(FormatDate).
-
 start_apps(Apps) ->
     lists:foreach(fun(App) ->
 			  application:stop(App),
diff --git a/lib/inets/test/old_httpd_SUITE.erl b/lib/inets/test/old_httpd_SUITE.erl
index 74c11f71ba..39b0b08645 100644
--- a/lib/inets/test/old_httpd_SUITE.erl
+++ b/lib/inets/test/old_httpd_SUITE.erl
@@ -2072,13 +2072,13 @@ create_config(Config, Access, FileName) ->
 		"Modules mod_alias mod_htaccess mod_auth "
 		    "mod_security "
 		    "mod_responsecontrol mod_trace mod_esi "
-		    "mod_actions mod_cgi mod_include mod_dir "
+		    "mod_actions mod_cgi mod_dir "
 		    "mod_range mod_get "
 		    "mod_head mod_log mod_disk_log";
 	    _ ->
 		"Modules mod_alias mod_auth mod_security "
 		    "mod_responsecontrol mod_trace mod_esi "
-		    "mod_actions mod_cgi mod_include mod_dir "
+		    "mod_actions mod_cgi mod_dir "
 			   "mod_range mod_get "
 		    "mod_head mod_log mod_disk_log"
 	end,
@@ -2436,7 +2436,7 @@ create_ipv6_config(Config, FileName, Ipv6Address) ->
     MaxHdrAct    = io_lib:format("~p", [close]),
   
     Mod_order = "Modules mod_alias mod_auth mod_esi mod_actions mod_cgi" 
-	" mod_include mod_dir mod_get mod_head" 
+	" mod_dir mod_get mod_head" 
 	" mod_log mod_disk_log mod_trace",
 	    
     SSL =
diff --git a/lib/inets/vsn.mk b/lib/inets/vsn.mk
index 38d46cc6fd..f52347e39e 100644
--- a/lib/inets/vsn.mk
+++ b/lib/inets/vsn.mk
@@ -18,6 +18,6 @@
 # %CopyrightEnd%
 
 APPLICATION = inets
-INETS_VSN   = 5.10.9
+INETS_VSN   = 6.0
 PRE_VSN     =
 APP_VSN     = "$(APPLICATION)-$(INETS_VSN)$(PRE_VSN)"
diff --git a/lib/jinterface/.classpath b/lib/jinterface/.classpath
new file mode 100644
index 0000000000..9785e55986
--- /dev/null
+++ b/lib/jinterface/.classpath
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="java_src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.6"/>
+	<classpathentry kind="output" path="priv"/>
+</classpath>
diff --git a/lib/jinterface/.gitignore b/lib/jinterface/.gitignore
new file mode 100644
index 0000000000..3418d354a9
--- /dev/null
+++ b/lib/jinterface/.gitignore
@@ -0,0 +1,2 @@
+priv/
+
diff --git a/lib/jinterface/.project b/lib/jinterface/.project
new file mode 100644
index 0000000000..450b96dc12
--- /dev/null
+++ b/lib/jinterface/.project
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>jinterface</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>
diff --git a/lib/jinterface/.settings/org.eclipse.jdt.core.prefs b/lib/jinterface/.settings/org.eclipse.jdt.core.prefs
new file mode 100644
index 0000000000..e8b3772a8a
--- /dev/null
+++ b/lib/jinterface/.settings/org.eclipse.jdt.core.prefs
@@ -0,0 +1,296 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.methodParameters=do not generate
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.5
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=1.5
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.5
+org.eclipse.jdt.core.formatter.align_type_members_on_columns=false
+org.eclipse.jdt.core.formatter.alignment_for_arguments_in_allocation_expression=16
+org.eclipse.jdt.core.formatter.alignment_for_arguments_in_annotation=0
+org.eclipse.jdt.core.formatter.alignment_for_arguments_in_enum_constant=16
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+org.eclipse.jdt.core.formatter.lineSplit=80
+org.eclipse.jdt.core.formatter.never_indent_block_comments_on_first_column=false
+org.eclipse.jdt.core.formatter.never_indent_line_comments_on_first_column=false
+org.eclipse.jdt.core.formatter.number_of_blank_lines_at_beginning_of_method_body=0
+org.eclipse.jdt.core.formatter.number_of_empty_lines_to_preserve=1
+org.eclipse.jdt.core.formatter.put_empty_statement_on_new_line=true
+org.eclipse.jdt.core.formatter.tabulation.char=space
+org.eclipse.jdt.core.formatter.tabulation.size=4
+org.eclipse.jdt.core.formatter.use_on_off_tags=true
+org.eclipse.jdt.core.formatter.use_tabs_only_for_leading_indentations=false
+org.eclipse.jdt.core.formatter.wrap_before_binary_operator=true
+org.eclipse.jdt.core.formatter.wrap_before_or_operator_multicatch=true
+org.eclipse.jdt.core.formatter.wrap_outer_expressions_when_nested=true
diff --git a/lib/jinterface/.settings/org.eclipse.jdt.ui.prefs b/lib/jinterface/.settings/org.eclipse.jdt.ui.prefs
new file mode 100644
index 0000000000..9190d818bc
--- /dev/null
+++ b/lib/jinterface/.settings/org.eclipse.jdt.ui.prefs
@@ -0,0 +1,121 @@
+cleanup.add_default_serial_version_id=true
+cleanup.add_generated_serial_version_id=false
+cleanup.add_missing_annotations=true
+cleanup.add_missing_deprecated_annotations=true
+cleanup.add_missing_methods=false
+cleanup.add_missing_nls_tags=false
+cleanup.add_missing_override_annotations=true
+cleanup.add_missing_override_annotations_interface_methods=true
+cleanup.add_serial_version_id=false
+cleanup.always_use_blocks=true
+cleanup.always_use_parentheses_in_expressions=false
+cleanup.always_use_this_for_non_static_field_access=false
+cleanup.always_use_this_for_non_static_method_access=false
+cleanup.convert_functional_interfaces=false
+cleanup.convert_to_enhanced_for_loop=false
+cleanup.correct_indentation=false
+cleanup.format_source_code=true
+cleanup.format_source_code_changes_only=false
+cleanup.insert_inferred_type_arguments=false
+cleanup.make_local_variable_final=true
+cleanup.make_parameters_final=true
+cleanup.make_private_fields_final=true
+cleanup.make_type_abstract_if_missing_method=false
+cleanup.make_variable_declarations_final=true
+cleanup.never_use_blocks=false
+cleanup.never_use_parentheses_in_expressions=true
+cleanup.organize_imports=true
+cleanup.qualify_static_field_accesses_with_declaring_class=false
+cleanup.qualify_static_member_accesses_through_instances_with_declaring_class=true
+cleanup.qualify_static_member_accesses_through_subtypes_with_declaring_class=true
+cleanup.qualify_static_member_accesses_with_declaring_class=true
+cleanup.qualify_static_method_accesses_with_declaring_class=false
+cleanup.remove_private_constructors=true
+cleanup.remove_redundant_type_arguments=true
+cleanup.remove_trailing_whitespaces=true
+cleanup.remove_trailing_whitespaces_all=true
+cleanup.remove_trailing_whitespaces_ignore_empty=false
+cleanup.remove_unnecessary_casts=true
+cleanup.remove_unnecessary_nls_tags=true
+cleanup.remove_unused_imports=true
+cleanup.remove_unused_local_variables=false
+cleanup.remove_unused_private_fields=true
+cleanup.remove_unused_private_members=false
+cleanup.remove_unused_private_methods=true
+cleanup.remove_unused_private_types=true
+cleanup.sort_members=false
+cleanup.sort_members_all=false
+cleanup.use_anonymous_class_creation=false
+cleanup.use_blocks=true
+cleanup.use_blocks_only_for_return_and_throw=false
+cleanup.use_lambda=true
+cleanup.use_parentheses_in_expressions=true
+cleanup.use_this_for_non_static_field_access=true
+cleanup.use_this_for_non_static_field_access_only_if_necessary=true
+cleanup.use_this_for_non_static_method_access=true
+cleanup.use_this_for_non_static_method_access_only_if_necessary=true
+cleanup.use_type_arguments=false
+cleanup_profile=_jinterface
+cleanup_settings_version=2
+eclipse.preferences.version=1
+editor_save_participant_org.eclipse.jdt.ui.postsavelistener.cleanup=true
+formatter_profile=_jinterface
+formatter_settings_version=12
+sp_cleanup.add_default_serial_version_id=true
+sp_cleanup.add_generated_serial_version_id=false
+sp_cleanup.add_missing_annotations=true
+sp_cleanup.add_missing_deprecated_annotations=true
+sp_cleanup.add_missing_methods=false
+sp_cleanup.add_missing_nls_tags=false
+sp_cleanup.add_missing_override_annotations=true
+sp_cleanup.add_missing_override_annotations_interface_methods=true
+sp_cleanup.add_serial_version_id=false
+sp_cleanup.always_use_blocks=true
+sp_cleanup.always_use_parentheses_in_expressions=false
+sp_cleanup.always_use_this_for_non_static_field_access=false
+sp_cleanup.always_use_this_for_non_static_method_access=false
+sp_cleanup.convert_functional_interfaces=false
+sp_cleanup.convert_to_enhanced_for_loop=false
+sp_cleanup.correct_indentation=false
+sp_cleanup.format_source_code=true
+sp_cleanup.format_source_code_changes_only=false
+sp_cleanup.insert_inferred_type_arguments=false
+sp_cleanup.make_local_variable_final=true
+sp_cleanup.make_parameters_final=true
+sp_cleanup.make_private_fields_final=true
+sp_cleanup.make_type_abstract_if_missing_method=false
+sp_cleanup.make_variable_declarations_final=true
+sp_cleanup.never_use_blocks=false
+sp_cleanup.never_use_parentheses_in_expressions=true
+sp_cleanup.on_save_use_additional_actions=true
+sp_cleanup.organize_imports=true
+sp_cleanup.qualify_static_field_accesses_with_declaring_class=false
+sp_cleanup.qualify_static_member_accesses_through_instances_with_declaring_class=true
+sp_cleanup.qualify_static_member_accesses_through_subtypes_with_declaring_class=true
+sp_cleanup.qualify_static_member_accesses_with_declaring_class=true
+sp_cleanup.qualify_static_method_accesses_with_declaring_class=false
+sp_cleanup.remove_private_constructors=true
+sp_cleanup.remove_redundant_type_arguments=false
+sp_cleanup.remove_trailing_whitespaces=true
+sp_cleanup.remove_trailing_whitespaces_all=true
+sp_cleanup.remove_trailing_whitespaces_ignore_empty=false
+sp_cleanup.remove_unnecessary_casts=true
+sp_cleanup.remove_unnecessary_nls_tags=true
+sp_cleanup.remove_unused_imports=true
+sp_cleanup.remove_unused_local_variables=false
+sp_cleanup.remove_unused_private_fields=true
+sp_cleanup.remove_unused_private_members=false
+sp_cleanup.remove_unused_private_methods=true
+sp_cleanup.remove_unused_private_types=true
+sp_cleanup.sort_members=false
+sp_cleanup.sort_members_all=false
+sp_cleanup.use_anonymous_class_creation=false
+sp_cleanup.use_blocks=true
+sp_cleanup.use_blocks_only_for_return_and_throw=false
+sp_cleanup.use_lambda=false
+sp_cleanup.use_parentheses_in_expressions=true
+sp_cleanup.use_this_for_non_static_field_access=false
+sp_cleanup.use_this_for_non_static_field_access_only_if_necessary=true
+sp_cleanup.use_this_for_non_static_method_access=false
+sp_cleanup.use_this_for_non_static_method_access_only_if_necessary=true
+sp_cleanup.use_type_arguments=false
diff --git a/lib/jinterface/doc/src/jinterface_users_guide.xml b/lib/jinterface/doc/src/jinterface_users_guide.xml
index 5dfe5c0c6d..238f90ce38 100644
--- a/lib/jinterface/doc/src/jinterface_users_guide.xml
+++ b/lib/jinterface/doc/src/jinterface_users_guide.xml
@@ -223,6 +223,14 @@ OtpNode node = new OtpNode("gurka");    </code>
   </section>
 
   <section>
+    <title>Transport Factory</title>
+    <p>All necessary connections are made using methods of
+    <seealso marker="java/com/ericsson/otp/erlang/OtpTransportFactory">OtpTransportFactory</seealso>
+    interface. Default OtpTransportFactory implementation is based on standard Socket class.
+    User may provide custom transport factory as needed. See java doc for details.</p>
+  </section>
+
+  <section>
     <title>Sending and Receiving Messages</title>
     <p>Messages sent with this package must be instances of 
       <seealso marker="java/com/ericsson/otp/erlang/OtpErlangObject">OtpErlangObject</seealso>
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/AbstractConnection.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/AbstractConnection.java
index b8a973753a..ab8fa06c1b 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/AbstractConnection.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/AbstractConnection.java
@@ -1,52 +1,52 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2010. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 
 package com.ericsson.otp.erlang;
 
 import java.io.IOException;
-import java.net.Socket;
+import java.io.OutputStream;
 import java.util.Random;
 
 /**
  * Maintains a connection between a Java process and a remote Erlang, Java or C
  * node. The object maintains connection state and allows data to be sent to and
  * received from the peer.
- * 
+ *
  * <p>
  * This abstract class provides the neccesary methods to maintain the actual
  * connection and encode the messages and headers in the proper format according
  * to the Erlang distribution protocol. Subclasses can use these methods to
  * provide a more or less transparent communication channel as desired.
  * </p>
- * 
+ *
  * <p>
  * Note that no receive methods are provided. Subclasses must provide methods
  * for message delivery, and may implement their own receive methods.
  * <p>
- * 
+ *
  * <p>
  * If an exception occurs in any of the methods in this class, the connection
  * will be closed and must be reopened in order to resume communication with the
  * peer. This will be indicated to the subclass by passing the exception to its
  * delivery() method.
  * </p>
- * 
+ *
  * <p>
  * The System property OtpConnection.trace can be used to change the initial
  * trace level setting for all connections. Normally the initial trace level is
@@ -84,7 +84,7 @@ public abstract class AbstractConnection extends Thread {
     private volatile boolean done = false;
 
     protected boolean connected = false; // connection status
-    protected Socket socket; // communication channel
+    protected OtpTransport socket; // communication channel
     protected OtpPeer peer; // who are we connected to
     protected OtpLocalNode localNode; // this nodes id
     String name; // local name of this connection
@@ -106,104 +106,103 @@ public abstract class AbstractConnection extends Thread {
     private int flags = 0;
 
     static {
-	// trace this connection?
-	final String trace = System.getProperties().getProperty(
-		"OtpConnection.trace");
-	try {
-	    if (trace != null) {
-		defaultLevel = Integer.valueOf(trace).intValue();
-	    }
-	} catch (final NumberFormatException e) {
-	    defaultLevel = 0;
-	}
-	random = new Random();
+        // trace this connection?
+        final String trace = System.getProperties().getProperty(
+                "OtpConnection.trace");
+        try {
+            if (trace != null) {
+                defaultLevel = Integer.valueOf(trace).intValue();
+            }
+        } catch (final NumberFormatException e) {
+            defaultLevel = 0;
+        }
+        random = new Random();
     }
 
     // private AbstractConnection() {
     // }
 
     /**
-     * Accept an incoming connection from a remote node. Used by {@link
-     * OtpSelf#accept() OtpSelf.accept()} to create a connection based on data
-     * received when handshaking with the peer node, when the remote node is the
-     * connection intitiator.
-     * 
-     * @exception java.io.IOException if it was not possible to connect to the
-     * peer.
-     * 
-     * @exception OtpAuthException if handshake resulted in an authentication
-     * error
+     * Accept an incoming connection from a remote node. Used by
+     * {@link OtpSelf#accept() OtpSelf.accept()} to create a connection based on
+     * data received when handshaking with the peer node, when the remote node
+     * is the connection initiator.
+     *
+     * @exception java.io.IOException
+     *                if it was not possible to connect to the peer.
+     *
+     * @exception OtpAuthException
+     *                if handshake resulted in an authentication error
      */
-    protected AbstractConnection(final OtpLocalNode self, final Socket s)
-	    throws IOException, OtpAuthException {
-	this.localNode = self;
-	peer = new OtpPeer();
-	socket = s;
-
-	socket.setTcpNoDelay(true);
-
-	traceLevel = defaultLevel;
-	setDaemon(true);
-
-	if (traceLevel >= handshakeThreshold) {
-	    System.out.println("<- ACCEPT FROM " + s.getInetAddress() + ":"
-		    + s.getPort());
-	}
-
-	// get his info
-	recvName(peer);
-
-	// now find highest common dist value
-	if (peer.proto != self.proto || self.distHigh < peer.distLow
-		|| self.distLow > peer.distHigh) {
-	    close();
-	    throw new IOException(
-		    "No common protocol found - cannot accept connection");
-	}
-	// highest common version: min(peer.distHigh, self.distHigh)
-	peer.distChoose = peer.distHigh > self.distHigh ? self.distHigh
-		: peer.distHigh;
-
-	doAccept();
-	name = peer.node();
+    protected AbstractConnection(final OtpLocalNode self, final OtpTransport s)
+            throws IOException, OtpAuthException {
+        localNode = self;
+        peer = new OtpPeer(self.transportFactory);
+        socket = s;
+
+        traceLevel = defaultLevel;
+        setDaemon(true);
+
+        if (traceLevel >= handshakeThreshold) {
+            System.out.println("<- ACCEPT FROM " + s);
+        }
+
+        // get his info
+        recvName(peer);
+
+        // now find highest common dist value
+        if (peer.proto != self.proto || self.distHigh < peer.distLow
+                || self.distLow > peer.distHigh) {
+            close();
+            throw new IOException(
+                    "No common protocol found - cannot accept connection");
+        }
+        // highest common version: min(peer.distHigh, self.distHigh)
+        peer.distChoose = peer.distHigh > self.distHigh ? self.distHigh
+                : peer.distHigh;
+
+        doAccept();
+        name = peer.node();
     }
 
     /**
      * Intiate and open a connection to a remote node.
-     * 
-     * @exception java.io.IOException if it was not possible to connect to the
-     * peer.
-     * 
-     * @exception OtpAuthException if handshake resulted in an authentication
-     * error.
+     *
+     * @exception java.io.IOException
+     *                if it was not possible to connect to the peer.
+     *
+     * @exception OtpAuthException
+     *                if handshake resulted in an authentication error.
      */
     protected AbstractConnection(final OtpLocalNode self, final OtpPeer other)
-	    throws IOException, OtpAuthException {
-	peer = other;
-	this.localNode = self;
-	socket = null;
-	int port;
-
-	traceLevel = defaultLevel;
-	setDaemon(true);
-
-	// now get a connection between the two...
-	port = OtpEpmd.lookupPort(peer);
-
-	// now find highest common dist value
-	if (peer.proto != self.proto || self.distHigh < peer.distLow
-		|| self.distLow > peer.distHigh) {
-	    throw new IOException("No common protocol found - cannot connect");
-	}
-
-	// highest common version: min(peer.distHigh, self.distHigh)
-	peer.distChoose = peer.distHigh > self.distHigh ? self.distHigh
-		: peer.distHigh;
-
-	doConnect(port);
-
-	name = peer.node();
-	connected = true;
+            throws IOException, OtpAuthException {
+        peer = other;
+        localNode = self;
+        socket = null;
+        int port;
+
+        traceLevel = defaultLevel;
+        setDaemon(true);
+
+        // now get a connection between the two...
+        port = OtpEpmd.lookupPort(peer);
+        if (port == 0)
+            throw new IOException("No remote node found - cannot connect");
+
+        // now find highest common dist value
+        if (peer.proto != self.proto || self.distHigh < peer.distLow
+                || self.distLow > peer.distHigh) {
+            throw new IOException("No common protocol found - cannot connect");
+        }
+
+        // highest common version: min(peer.distHigh, self.distHigh)
+        peer.distChoose = peer.distHigh > self.distHigh ? self.distHigh
+                : peer.distHigh;
+
+        doConnect(port);
+
+        name = peer.node();
+        connected = true;
     }
 
     /**
@@ -218,91 +217,91 @@ public abstract class AbstractConnection extends Thread {
 
     /**
      * Send a pre-encoded message to a named process on a remote node.
-     * 
+     *
      * @param dest
      *            the name of the remote process.
      * @param payload
      *            the encoded message to send.
-     * 
+     *
      * @exception java.io.IOException
      *                if the connection is not active or a communication error
      *                occurs.
      */
     protected void sendBuf(final OtpErlangPid from, final String dest,
-	    final OtpOutputStream payload) throws IOException {
-	if (!connected) {
-	    throw new IOException("Not connected");
-	}
-    @SuppressWarnings("resource")
-	final OtpOutputStream header = new OtpOutputStream(headerLen);
-
-	// preamble: 4 byte length + "passthrough" tag + version
-	header.write4BE(0); // reserve space for length
-	header.write1(passThrough);
-	header.write1(version);
-
-	// header info
-	header.write_tuple_head(4);
-	header.write_long(regSendTag);
-	header.write_any(from);
-	if (sendCookie) {
-	    header.write_atom(localNode.cookie());
-	} else {
-	    header.write_atom("");
-	}
-	header.write_atom(dest);
-
-	// version for payload
-	header.write1(version);
-
-	// fix up length in preamble
-	header.poke4BE(0, header.size() + payload.size() - 4);
-
-	do_send(header, payload);
+            final OtpOutputStream payload) throws IOException {
+        if (!connected) {
+            throw new IOException("Not connected");
+        }
+        @SuppressWarnings("resource")
+        final OtpOutputStream header = new OtpOutputStream(headerLen);
+
+        // preamble: 4 byte length + "passthrough" tag + version
+        header.write4BE(0); // reserve space for length
+        header.write1(passThrough);
+        header.write1(version);
+
+        // header info
+        header.write_tuple_head(4);
+        header.write_long(regSendTag);
+        header.write_any(from);
+        if (sendCookie) {
+            header.write_atom(localNode.cookie());
+        } else {
+            header.write_atom("");
+        }
+        header.write_atom(dest);
+
+        // version for payload
+        header.write1(version);
+
+        // fix up length in preamble
+        header.poke4BE(0, header.size() + payload.size() - 4);
+
+        do_send(header, payload);
     }
 
     /**
      * Send a pre-encoded message to a process on a remote node.
-     * 
+     *
      * @param dest
      *            the Erlang PID of the remote process.
      * @param payload
      *            the encoded message to send.
-     * 
+     *
      * @exception java.io.IOException
      *                if the connection is not active or a communication error
      *                occurs.
      */
     protected void sendBuf(final OtpErlangPid from, final OtpErlangPid dest,
-	    final OtpOutputStream payload) throws IOException {
-	if (!connected) {
-	    throw new IOException("Not connected");
-	}
-    @SuppressWarnings("resource")
-	final OtpOutputStream header = new OtpOutputStream(headerLen);
-
-	// preamble: 4 byte length + "passthrough" tag + version
-	header.write4BE(0); // reserve space for length
-	header.write1(passThrough);
-	header.write1(version);
-
-	// header info
-	header.write_tuple_head(3);
-	header.write_long(sendTag);
-	if (sendCookie) {
-	    header.write_atom(localNode.cookie());
-	} else {
-	    header.write_atom("");
-	}
-	header.write_any(dest);
-
-	// version for payload
-	header.write1(version);
-
-	// fix up length in preamble
-	header.poke4BE(0, header.size() + payload.size() - 4);
-
-	do_send(header, payload);
+            final OtpOutputStream payload) throws IOException {
+        if (!connected) {
+            throw new IOException("Not connected");
+        }
+        @SuppressWarnings("resource")
+        final OtpOutputStream header = new OtpOutputStream(headerLen);
+
+        // preamble: 4 byte length + "passthrough" tag + version
+        header.write4BE(0); // reserve space for length
+        header.write1(passThrough);
+        header.write1(version);
+
+        // header info
+        header.write_tuple_head(3);
+        header.write_long(sendTag);
+        if (sendCookie) {
+            header.write_atom(localNode.cookie());
+        } else {
+            header.write_atom("");
+        }
+        header.write_any(dest);
+
+        // version for payload
+        header.write1(version);
+
+        // fix up length in preamble
+        header.poke4BE(0, header.size() + payload.size() - 4);
+
+        do_send(header, payload);
     }
 
     /*
@@ -311,60 +310,60 @@ public abstract class AbstractConnection extends Thread {
      * otherwise
      */
     private void cookieError(final OtpLocalNode local,
-	    final OtpErlangAtom cookie) throws OtpAuthException {
-	try {
-        @SuppressWarnings("resource")
-	    final OtpOutputStream header = new OtpOutputStream(headerLen);
-
-	    // preamble: 4 byte length + "passthrough" tag + version
-	    header.write4BE(0); // reserve space for length
-	    header.write1(passThrough);
-	    header.write1(version);
-
-	    header.write_tuple_head(4);
-	    header.write_long(regSendTag);
-	    header.write_any(local.createPid()); // disposable pid
-	    header.write_atom(cookie.atomValue()); // important: his cookie,
-	    // not mine...
-	    header.write_atom("auth");
-
-	    // version for payload
-	    header.write1(version);
-
-	    // the payload
-
-	    // the no_auth message (copied from Erlang) Don't change this
-	    // (Erlang will crash)
-	    // {$gen_cast, {print, "~n** Unauthorized cookie ~w **~n",
-	    // [foo@aule]}}
-	    final OtpErlangObject[] msg = new OtpErlangObject[2];
-	    final OtpErlangObject[] msgbody = new OtpErlangObject[3];
-
-	    msgbody[0] = new OtpErlangAtom("print");
-	    msgbody[1] = new OtpErlangString("~n** Bad cookie sent to " + local
-		    + " **~n");
-	    // Erlang will crash and burn if there is no third argument here...
-	    msgbody[2] = new OtpErlangList(); // empty list
-
-	    msg[0] = new OtpErlangAtom("$gen_cast");
-	    msg[1] = new OtpErlangTuple(msgbody);
-
-        @SuppressWarnings("resource")
-	    final OtpOutputStream payload = new OtpOutputStream(
-		    new OtpErlangTuple(msg));
-
-	    // fix up length in preamble
-	    header.poke4BE(0, header.size() + payload.size() - 4);
-
-	    try {
-		do_send(header, payload);
-	    } catch (final IOException e) {
-	    } // ignore
-	} finally {
-	    close();
-	}
-	throw new OtpAuthException("Remote cookie not authorized: "
-		+ cookie.atomValue());
+            final OtpErlangAtom cookie) throws OtpAuthException {
+        try {
+            @SuppressWarnings("resource")
+            final OtpOutputStream header = new OtpOutputStream(headerLen);
+
+            // preamble: 4 byte length + "passthrough" tag + version
+            header.write4BE(0); // reserve space for length
+            header.write1(passThrough);
+            header.write1(version);
+
+            header.write_tuple_head(4);
+            header.write_long(regSendTag);
+            header.write_any(local.createPid()); // disposable pid
+            header.write_atom(cookie.atomValue()); // important: his cookie,
+            // not mine...
+            header.write_atom("auth");
+
+            // version for payload
+            header.write1(version);
+
+            // the payload
+
+            // the no_auth message (copied from Erlang) Don't change this
+            // (Erlang will crash)
+            // {$gen_cast, {print, "~n** Unauthorized cookie ~w **~n",
+            // [foo@aule]}}
+            final OtpErlangObject[] msg = new OtpErlangObject[2];
+            final OtpErlangObject[] msgbody = new OtpErlangObject[3];
+
+            msgbody[0] = new OtpErlangAtom("print");
+            msgbody[1] = new OtpErlangString("~n** Bad cookie sent to " + local
+                    + " **~n");
+            // Erlang will crash and burn if there is no third argument here...
+            msgbody[2] = new OtpErlangList(); // empty list
+
+            msg[0] = new OtpErlangAtom("$gen_cast");
+            msg[1] = new OtpErlangTuple(msgbody);
+
+            @SuppressWarnings("resource")
+            final OtpOutputStream payload = new OtpOutputStream(
+                    new OtpErlangTuple(msg));
+
+            // fix up length in preamble
+            header.poke4BE(0, header.size() + payload.size() - 4);
+
+            try {
+                do_send(header, payload);
+            } catch (final IOException e) {
+            } // ignore
+        } finally {
+            close();
+        }
+        throw new OtpAuthException("Remote cookie not authorized: "
+                + cookie.atomValue());
     }
 
     // link to pid
@@ -374,364 +373,366 @@ public abstract class AbstractConnection extends Thread {
      * remote node. If the link is still active when the remote process
      * terminates, an exit signal will be sent to this connection. Use
      * {@link #sendUnlink unlink()} to remove the link.
-     * 
+     *
      * @param dest
      *            the Erlang PID of the remote process.
-     * 
+     *
      * @exception java.io.IOException
      *                if the connection is not active or a communication error
      *                occurs.
      */
     protected void sendLink(final OtpErlangPid from, final OtpErlangPid dest)
-	    throws IOException {
-	if (!connected) {
-	    throw new IOException("Not connected");
-	}
-    @SuppressWarnings("resource")
-	final OtpOutputStream header = new OtpOutputStream(headerLen);
+            throws IOException {
+        if (!connected) {
+            throw new IOException("Not connected");
+        }
+        @SuppressWarnings("resource")
+        final OtpOutputStream header = new OtpOutputStream(headerLen);
 
-	// preamble: 4 byte length + "passthrough" tag
-	header.write4BE(0); // reserve space for length
-	header.write1(passThrough);
-	header.write1(version);
+        // preamble: 4 byte length + "passthrough" tag
+        header.write4BE(0); // reserve space for length
+        header.write1(passThrough);
+        header.write1(version);
 
-	// header
-	header.write_tuple_head(3);
-	header.write_long(linkTag);
-	header.write_any(from);
-	header.write_any(dest);
+        // header
+        header.write_tuple_head(3);
+        header.write_long(linkTag);
+        header.write_any(from);
+        header.write_any(dest);
 
-	// fix up length in preamble
-	header.poke4BE(0, header.size() - 4);
+        // fix up length in preamble
+        header.poke4BE(0, header.size() - 4);
 
-	do_send(header);
+        do_send(header);
     }
 
     /**
      * Remove a link between the local node and the specified process on the
      * remote node. This method deactivates links created with {@link #sendLink
      * link()}.
-     * 
+     *
      * @param dest
      *            the Erlang PID of the remote process.
-     * 
+     *
      * @exception java.io.IOException
      *                if the connection is not active or a communication error
      *                occurs.
      */
     protected void sendUnlink(final OtpErlangPid from, final OtpErlangPid dest)
-	    throws IOException {
-	if (!connected) {
-	    throw new IOException("Not connected");
-	}
-    @SuppressWarnings("resource")
-	final OtpOutputStream header = new OtpOutputStream(headerLen);
+            throws IOException {
+        if (!connected) {
+            throw new IOException("Not connected");
+        }
+        @SuppressWarnings("resource")
+        final OtpOutputStream header = new OtpOutputStream(headerLen);
 
-	// preamble: 4 byte length + "passthrough" tag
-	header.write4BE(0); // reserve space for length
-	header.write1(passThrough);
-	header.write1(version);
+        // preamble: 4 byte length + "passthrough" tag
+        header.write4BE(0); // reserve space for length
+        header.write1(passThrough);
+        header.write1(version);
 
-	// header
-	header.write_tuple_head(3);
-	header.write_long(unlinkTag);
-	header.write_any(from);
-	header.write_any(dest);
+        // header
+        header.write_tuple_head(3);
+        header.write_long(unlinkTag);
+        header.write_any(from);
+        header.write_any(dest);
 
-	// fix up length in preamble
-	header.poke4BE(0, header.size() - 4);
+        // fix up length in preamble
+        header.poke4BE(0, header.size() - 4);
 
-	do_send(header);
+        do_send(header);
     }
 
     /* used internally when "processes" terminate */
     protected void sendExit(final OtpErlangPid from, final OtpErlangPid dest,
-	    final OtpErlangObject reason) throws IOException {
-	sendExit(exitTag, from, dest, reason);
+            final OtpErlangObject reason) throws IOException {
+        sendExit(exitTag, from, dest, reason);
     }
 
     /**
      * Send an exit signal to a remote process.
-     * 
+     *
      * @param dest
      *            the Erlang PID of the remote process.
      * @param reason
      *            an Erlang term describing the exit reason.
-     * 
+     *
      * @exception java.io.IOException
      *                if the connection is not active or a communication error
      *                occurs.
      */
     protected void sendExit2(final OtpErlangPid from, final OtpErlangPid dest,
-	    final OtpErlangObject reason) throws IOException {
-	sendExit(exit2Tag, from, dest, reason);
+            final OtpErlangObject reason) throws IOException {
+        sendExit(exit2Tag, from, dest, reason);
     }
 
     private void sendExit(final int tag, final OtpErlangPid from,
-	    final OtpErlangPid dest, final OtpErlangObject reason)
-	    throws IOException {
-	if (!connected) {
-	    throw new IOException("Not connected");
-	}
-    @SuppressWarnings("resource")
-	final OtpOutputStream header = new OtpOutputStream(headerLen);
+            final OtpErlangPid dest, final OtpErlangObject reason)
+            throws IOException {
+        if (!connected) {
+            throw new IOException("Not connected");
+        }
+        @SuppressWarnings("resource")
+        final OtpOutputStream header = new OtpOutputStream(headerLen);
 
-	// preamble: 4 byte length + "passthrough" tag
-	header.write4BE(0); // reserve space for length
-	header.write1(passThrough);
-	header.write1(version);
+        // preamble: 4 byte length + "passthrough" tag
+        header.write4BE(0); // reserve space for length
+        header.write1(passThrough);
+        header.write1(version);
 
-	// header
-	header.write_tuple_head(4);
-	header.write_long(tag);
-	header.write_any(from);
-	header.write_any(dest);
-	header.write_any(reason);
+        // header
+        header.write_tuple_head(4);
+        header.write_long(tag);
+        header.write_any(from);
+        header.write_any(dest);
+        header.write_any(reason);
 
-	// fix up length in preamble
-	header.poke4BE(0, header.size() - 4);
+        // fix up length in preamble
+        header.poke4BE(0, header.size() - 4);
 
-	do_send(header);
+        do_send(header);
     }
 
     @SuppressWarnings("resource")
     @Override
     public void run() {
-	if (!connected) {
-	    deliver(new IOException("Not connected"));
-	    return;
-	}
-
-	final byte[] lbuf = new byte[4];
-	OtpInputStream ibuf;
-	OtpErlangObject traceobj;
-	int len;
-	final byte[] tock = { 0, 0, 0, 0 };
-
-	try {
-	    receive_loop: while (!done) {
-		// don't return until we get a real message
-		// or a failure of some kind (e.g. EXIT)
-		// read length and read buffer must be atomic!
-        do {
-		    // read 4 bytes - get length of incoming packet
-		    // socket.getInputStream().read(lbuf);
-		    readSock(socket, lbuf);
-		    ibuf = new OtpInputStream(lbuf, flags);
-		    len = ibuf.read4BE();
-
-		    // received tick? send tock!
-		    if (len == 0) {
-			synchronized (this) {
-			    socket.getOutputStream().write(tock);
-			}
-		    }
-
-		} while (len == 0); // tick_loop
-
-		// got a real message (maybe) - read len bytes
-		final byte[] tmpbuf = new byte[len];
-		// i = socket.getInputStream().read(tmpbuf);
-		readSock(socket, tmpbuf);
-        ibuf.close();
-		ibuf = new OtpInputStream(tmpbuf, flags);
-
-		if (ibuf.read1() != passThrough) {
-		    break receive_loop;
-		}
-
-		// got a real message (really)
-		OtpErlangObject reason = null;
-		OtpErlangAtom cookie = null;
-		OtpErlangObject tmp = null;
-		OtpErlangTuple head = null;
-		OtpErlangAtom toName;
-		OtpErlangPid to;
-		OtpErlangPid from;
-		int tag;
-
-		// decode the header
-		tmp = ibuf.read_any();
-		if (!(tmp instanceof OtpErlangTuple)) {
-		    break receive_loop;
-		}
-
-		head = (OtpErlangTuple) tmp;
-		if (!(head.elementAt(0) instanceof OtpErlangLong)) {
-		    break receive_loop;
-		}
-
-		// lets see what kind of message this is
-		tag = (int) ((OtpErlangLong) head.elementAt(0)).longValue();
-
-		switch (tag) {
-		case sendTag: // { SEND, Cookie, ToPid }
-		case sendTTTag: // { SEND, Cookie, ToPid, TraceToken }
-		    if (!cookieOk) {
-			// we only check this once, he can send us bad cookies
-			// later if he likes
-			if (!(head.elementAt(1) instanceof OtpErlangAtom)) {
-			    break receive_loop;
-			}
-			cookie = (OtpErlangAtom) head.elementAt(1);
-			if (sendCookie) {
-			    if (!cookie.atomValue().equals(localNode.cookie())) {
-				cookieError(localNode, cookie);
-			    }
-			} else {
-			    if (!cookie.atomValue().equals("")) {
-				cookieError(localNode, cookie);
-			    }
-			}
-			cookieOk = true;
-		    }
-
-		    if (traceLevel >= sendThreshold) {
-			System.out.println("<- " + headerType(head) + " "
-				+ head);
-
-			/* show received payload too */
-			ibuf.mark(0);
-			traceobj = ibuf.read_any();
-
-			if (traceobj != null) {
-			    System.out.println("   " + traceobj);
-			} else {
-			    System.out.println("   (null)");
-			}
-			ibuf.reset();
-		    }
-
-		    to = (OtpErlangPid) head.elementAt(2);
-
-		    deliver(new OtpMsg(to, ibuf));
-		    break;
-
-		case regSendTag: // { REG_SEND, FromPid, Cookie, ToName }
-		case regSendTTTag: // { REG_SEND, FromPid, Cookie, ToName,
-		    // TraceToken }
-		    if (!cookieOk) {
-			// we only check this once, he can send us bad cookies
-			// later if he likes
-			if (!(head.elementAt(2) instanceof OtpErlangAtom)) {
-			    break receive_loop;
-			}
-			cookie = (OtpErlangAtom) head.elementAt(2);
-			if (sendCookie) {
-			    if (!cookie.atomValue().equals(localNode.cookie())) {
-				cookieError(localNode, cookie);
-			    }
-			} else {
-			    if (!cookie.atomValue().equals("")) {
-				cookieError(localNode, cookie);
-			    }
-			}
-			cookieOk = true;
-		    }
-
-		    if (traceLevel >= sendThreshold) {
-			System.out.println("<- " + headerType(head) + " "
-				+ head);
-
-			/* show received payload too */
-			ibuf.mark(0);
-			traceobj = ibuf.read_any();
-
-			if (traceobj != null) {
-			    System.out.println("   " + traceobj);
-			} else {
-			    System.out.println("   (null)");
-			}
-			ibuf.reset();
-		    }
-
-		    from = (OtpErlangPid) head.elementAt(1);
-		    toName = (OtpErlangAtom) head.elementAt(3);
-
-		    deliver(new OtpMsg(from, toName.atomValue(), ibuf));
-		    break;
-
-		case exitTag: // { EXIT, FromPid, ToPid, Reason }
-		case exit2Tag: // { EXIT2, FromPid, ToPid, Reason }
-		    if (head.elementAt(3) == null) {
-			break receive_loop;
-		    }
-		    if (traceLevel >= ctrlThreshold) {
-			System.out.println("<- " + headerType(head) + " "
-				+ head);
-		    }
-
-		    from = (OtpErlangPid) head.elementAt(1);
-		    to = (OtpErlangPid) head.elementAt(2);
-		    reason = head.elementAt(3);
-
-		    deliver(new OtpMsg(tag, from, to, reason));
-		    break;
-
-		case exitTTTag: // { EXIT, FromPid, ToPid, TraceToken, Reason }
-		case exit2TTTag: // { EXIT2, FromPid, ToPid, TraceToken,
-		    // Reason
-		    // }
-		    // as above, but bifferent element number
-		    if (head.elementAt(4) == null) {
-			break receive_loop;
-		    }
-		    if (traceLevel >= ctrlThreshold) {
-			System.out.println("<- " + headerType(head) + " "
-				+ head);
-		    }
-
-		    from = (OtpErlangPid) head.elementAt(1);
-		    to = (OtpErlangPid) head.elementAt(2);
-		    reason = head.elementAt(4);
-
-		    deliver(new OtpMsg(tag, from, to, reason));
-		    break;
-
-		case linkTag: // { LINK, FromPid, ToPid}
-		case unlinkTag: // { UNLINK, FromPid, ToPid}
-		    if (traceLevel >= ctrlThreshold) {
-			System.out.println("<- " + headerType(head) + " "
-				+ head);
-		    }
-
-		    from = (OtpErlangPid) head.elementAt(1);
-		    to = (OtpErlangPid) head.elementAt(2);
-
-		    deliver(new OtpMsg(tag, from, to));
-		    break;
-
-		// absolutely no idea what to do with these, so we ignore
-		// them...
-		case groupLeaderTag: // { GROUPLEADER, FromPid, ToPid}
-		    // (just show trace)
-		    if (traceLevel >= ctrlThreshold) {
-			System.out.println("<- " + headerType(head) + " "
-				+ head);
-		    }
-		    break;
-
-		default:
-		    // garbage?
-		    break receive_loop;
-		}
-	    } // end receive_loop
-
-	    // this section reachable only with break
-	    // we have received garbage from peer
-	    deliver(new OtpErlangExit("Remote is sending garbage"));
-
-	} // try
-
-	catch (final OtpAuthException e) {
-	    deliver(e);
-	} catch (final OtpErlangDecodeException e) {
-	    deliver(new OtpErlangExit("Remote is sending garbage"));
-	} catch (final IOException e) {
-	    deliver(new OtpErlangExit("Remote has closed connection"));
-	} finally {
-	    close();
-	}
+        if (!connected) {
+            deliver(new IOException("Not connected"));
+            return;
+        }
+
+        final byte[] lbuf = new byte[4];
+        OtpInputStream ibuf;
+        OtpErlangObject traceobj;
+        int len;
+        final byte[] tock = { 0, 0, 0, 0 };
+
+        try {
+            receive_loop: while (!done) {
+                // don't return until we get a real message
+                // or a failure of some kind (e.g. EXIT)
+                // read length and read buffer must be atomic!
+                do {
+                    // read 4 bytes - get length of incoming packet
+                    // socket.getInputStream().read(lbuf);
+                    readSock(socket, lbuf);
+                    ibuf = new OtpInputStream(lbuf, flags);
+                    len = ibuf.read4BE();
+
+                    // received tick? send tock!
+                    if (len == 0) {
+                        synchronized (this) {
+                            OutputStream out = socket.getOutputStream();
+                            out.write(tock);
+                            out.flush();
+                        }
+                    }
+
+                } while (len == 0); // tick_loop
+
+                // got a real message (maybe) - read len bytes
+                final byte[] tmpbuf = new byte[len];
+                // i = socket.getInputStream().read(tmpbuf);
+                readSock(socket, tmpbuf);
+                ibuf.close();
+                ibuf = new OtpInputStream(tmpbuf, flags);
+
+                if (ibuf.read1() != passThrough) {
+                    break receive_loop;
+                }
+
+                // got a real message (really)
+                OtpErlangObject reason = null;
+                OtpErlangAtom cookie = null;
+                OtpErlangObject tmp = null;
+                OtpErlangTuple head = null;
+                OtpErlangAtom toName;
+                OtpErlangPid to;
+                OtpErlangPid from;
+                int tag;
+
+                // decode the header
+                tmp = ibuf.read_any();
+                if (!(tmp instanceof OtpErlangTuple)) {
+                    break receive_loop;
+                }
+
+                head = (OtpErlangTuple) tmp;
+                if (!(head.elementAt(0) instanceof OtpErlangLong)) {
+                    break receive_loop;
+                }
+
+                // lets see what kind of message this is
+                tag = (int) ((OtpErlangLong) head.elementAt(0)).longValue();
+
+                switch (tag) {
+                case sendTag: // { SEND, Cookie, ToPid }
+                case sendTTTag: // { SEND, Cookie, ToPid, TraceToken }
+                    if (!cookieOk) {
+                        // we only check this once, he can send us bad cookies
+                        // later if he likes
+                        if (!(head.elementAt(1) instanceof OtpErlangAtom)) {
+                            break receive_loop;
+                        }
+                        cookie = (OtpErlangAtom) head.elementAt(1);
+                        if (sendCookie) {
+                            if (!cookie.atomValue().equals(localNode.cookie())) {
+                                cookieError(localNode, cookie);
+                            }
+                        } else {
+                            if (!cookie.atomValue().equals("")) {
+                                cookieError(localNode, cookie);
+                            }
+                        }
+                        cookieOk = true;
+                    }
+
+                    if (traceLevel >= sendThreshold) {
+                        System.out.println("<- " + headerType(head) + " "
+                                + head);
+
+                        /* show received payload too */
+                        ibuf.mark(0);
+                        traceobj = ibuf.read_any();
+
+                        if (traceobj != null) {
+                            System.out.println("   " + traceobj);
+                        } else {
+                            System.out.println("   (null)");
+                        }
+                        ibuf.reset();
+                    }
+
+                    to = (OtpErlangPid) head.elementAt(2);
+
+                    deliver(new OtpMsg(to, ibuf));
+                    break;
+
+                case regSendTag: // { REG_SEND, FromPid, Cookie, ToName }
+                case regSendTTTag: // { REG_SEND, FromPid, Cookie, ToName,
+                    // TraceToken }
+                    if (!cookieOk) {
+                        // we only check this once, he can send us bad cookies
+                        // later if he likes
+                        if (!(head.elementAt(2) instanceof OtpErlangAtom)) {
+                            break receive_loop;
+                        }
+                        cookie = (OtpErlangAtom) head.elementAt(2);
+                        if (sendCookie) {
+                            if (!cookie.atomValue().equals(localNode.cookie())) {
+                                cookieError(localNode, cookie);
+                            }
+                        } else {
+                            if (!cookie.atomValue().equals("")) {
+                                cookieError(localNode, cookie);
+                            }
+                        }
+                        cookieOk = true;
+                    }
+
+                    if (traceLevel >= sendThreshold) {
+                        System.out.println("<- " + headerType(head) + " "
+                                + head);
+
+                        /* show received payload too */
+                        ibuf.mark(0);
+                        traceobj = ibuf.read_any();
+
+                        if (traceobj != null) {
+                            System.out.println("   " + traceobj);
+                        } else {
+                            System.out.println("   (null)");
+                        }
+                        ibuf.reset();
+                    }
+
+                    from = (OtpErlangPid) head.elementAt(1);
+                    toName = (OtpErlangAtom) head.elementAt(3);
+
+                    deliver(new OtpMsg(from, toName.atomValue(), ibuf));
+                    break;
+
+                case exitTag: // { EXIT, FromPid, ToPid, Reason }
+                case exit2Tag: // { EXIT2, FromPid, ToPid, Reason }
+                    if (head.elementAt(3) == null) {
+                        break receive_loop;
+                    }
+                    if (traceLevel >= ctrlThreshold) {
+                        System.out.println("<- " + headerType(head) + " "
+                                + head);
+                    }
+
+                    from = (OtpErlangPid) head.elementAt(1);
+                    to = (OtpErlangPid) head.elementAt(2);
+                    reason = head.elementAt(3);
+
+                    deliver(new OtpMsg(tag, from, to, reason));
+                    break;
+
+                case exitTTTag: // { EXIT, FromPid, ToPid, TraceToken, Reason }
+                case exit2TTTag: // { EXIT2, FromPid, ToPid, TraceToken,
+                    // Reason
+                    // }
+                    // as above, but bifferent element number
+                    if (head.elementAt(4) == null) {
+                        break receive_loop;
+                    }
+                    if (traceLevel >= ctrlThreshold) {
+                        System.out.println("<- " + headerType(head) + " "
+                                + head);
+                    }
+
+                    from = (OtpErlangPid) head.elementAt(1);
+                    to = (OtpErlangPid) head.elementAt(2);
+                    reason = head.elementAt(4);
+
+                    deliver(new OtpMsg(tag, from, to, reason));
+                    break;
+
+                case linkTag: // { LINK, FromPid, ToPid}
+                case unlinkTag: // { UNLINK, FromPid, ToPid}
+                    if (traceLevel >= ctrlThreshold) {
+                        System.out.println("<- " + headerType(head) + " "
+                                + head);
+                    }
+
+                    from = (OtpErlangPid) head.elementAt(1);
+                    to = (OtpErlangPid) head.elementAt(2);
+
+                    deliver(new OtpMsg(tag, from, to));
+                    break;
+
+                // absolutely no idea what to do with these, so we ignore
+                // them...
+                case groupLeaderTag: // { GROUPLEADER, FromPid, ToPid}
+                    // (just show trace)
+                    if (traceLevel >= ctrlThreshold) {
+                        System.out.println("<- " + headerType(head) + " "
+                                + head);
+                    }
+                    break;
+
+                default:
+                    // garbage?
+                    break receive_loop;
+                }
+            } // end receive_loop
+
+            // this section reachable only with break
+            // we have received garbage from peer
+            deliver(new OtpErlangExit("Remote is sending garbage"));
+
+        } // try
+
+        catch (final OtpAuthException e) {
+            deliver(e);
+        } catch (final OtpErlangDecodeException e) {
+            deliver(new OtpErlangExit("Remote is sending garbage"));
+        } catch (final IOException e) {
+            deliver(new OtpErlangExit("Remote has closed connection"));
+        } finally {
+            close();
+        }
     }
 
     /**
@@ -739,7 +740,7 @@ public abstract class AbstractConnection extends Thread {
      * Set the trace level for this connection. Normally tracing is off by
      * default unless System property OtpConnection.trace was set.
      * </p>
-     * 
+     *
      * <p>
      * The following levels are valid: 0 turns off tracing completely, 1 shows
      * ordinary send and receive messages, 2 shows control messages such as link
@@ -747,632 +748,643 @@ public abstract class AbstractConnection extends Thread {
      * communication with Epmd. Each level includes the information shown by the
      * lower ones.
      * </p>
-     * 
+     *
      * @param level
      *            the level to set.
-     * 
+     *
      * @return the previous trace level.
      */
-    public int setTraceLevel(int level) {
-	final int oldLevel = traceLevel;
+    public int setTraceLevel(final int level) {
+        final int oldLevel = traceLevel;
 
-	// pin the value
-    int theLevel = level;
-	if (level < 0) {
-        theLevel = 0;
-	} else if (level > 4) {
-        theLevel = 4;
-	}
+        // pin the value
+        int theLevel = level;
+        if (level < 0) {
+            theLevel = 0;
+        } else if (level > 4) {
+            theLevel = 4;
+        }
 
-    traceLevel = theLevel;
+        traceLevel = theLevel;
 
-	return oldLevel;
+        return oldLevel;
     }
 
     /**
      * Get the trace level for this connection.
-     * 
+     *
      * @return the current trace level.
      */
     public int getTraceLevel() {
-	return traceLevel;
+        return traceLevel;
     }
 
     /**
      * Close the connection to the remote node.
      */
     public void close() {
-	done = true;
-	connected = false;
-	synchronized (this) {
-	    try {
-		if (socket != null) {
-		    if (traceLevel >= ctrlThreshold) {
-			System.out.println("-> CLOSE");
-		    }
-		    socket.close();
-		}
-	    } catch (final IOException e) { /* ignore socket close errors */
-	    } finally {
-		socket = null;
-	    }
-	}
+        done = true;
+        connected = false;
+        synchronized (this) {
+            try {
+                if (socket != null) {
+                    if (traceLevel >= ctrlThreshold) {
+                        System.out.println("-> CLOSE");
+                    }
+                    socket.close();
+                }
+            } catch (final IOException e) { /* ignore socket close errors */
+            } finally {
+                socket = null;
+            }
+        }
     }
 
     @Override
     protected void finalize() {
-	close();
+        close();
     }
 
     /**
      * Determine if the connection is still alive. Note that this method only
      * reports the status of the connection, and that it is possible that there
      * are unread messages waiting in the receive queue.
-     * 
+     *
      * @return true if the connection is alive.
      */
     public boolean isConnected() {
-	return connected;
+        return connected;
     }
 
     // used by send and send_reg (message types with payload)
     protected synchronized void do_send(final OtpOutputStream header,
-	    final OtpOutputStream payload) throws IOException {
-	try {
-	    if (traceLevel >= sendThreshold) {
-		// Need to decode header and output buffer to show trace
-		// message!
-		// First make OtpInputStream, then decode.
-		try {
-		    final OtpErlangObject h = header.getOtpInputStream(5)
-			    .read_any();
-		    System.out.println("-> " + headerType(h) + " " + h);
-
-		    OtpErlangObject o = payload.getOtpInputStream(0).read_any();
-		    System.out.println("   " + o);
-		    o = null;
-		} catch (final OtpErlangDecodeException e) {
-		    System.out.println("   " + "can't decode output buffer:"
-			    + e);
-		}
-	    }
-
-	    header.writeTo(socket.getOutputStream());
-	    payload.writeTo(socket.getOutputStream());
-	} catch (final IOException e) {
-	    close();
-	    throw e;
-	}
+            final OtpOutputStream payload) throws IOException {
+        try {
+            if (traceLevel >= sendThreshold) {
+                // Need to decode header and output buffer to show trace
+                // message!
+                // First make OtpInputStream, then decode.
+                try {
+                    final OtpErlangObject h = header.getOtpInputStream(5)
+                            .read_any();
+                    System.out.println("-> " + headerType(h) + " " + h);
+
+                    OtpErlangObject o = payload.getOtpInputStream(0).read_any();
+                    System.out.println("   " + o);
+                    o = null;
+                } catch (final OtpErlangDecodeException e) {
+                    System.out.println("   " + "can't decode output buffer:"
+                            + e);
+                }
+            }
+
+            // group flush op in favour of possible ssh-tunneled stream
+            OutputStream out = socket.getOutputStream();
+            header.writeTo(out);
+            payload.writeTo(out);
+            out.flush();
+        } catch (final IOException e) {
+            close();
+            throw e;
+        }
     }
 
     // used by the other message types
     protected synchronized void do_send(final OtpOutputStream header)
-	    throws IOException {
-	try {
-	    if (traceLevel >= ctrlThreshold) {
-		try {
-		    final OtpErlangObject h = header.getOtpInputStream(5)
-			    .read_any();
-		    System.out.println("-> " + headerType(h) + " " + h);
-		} catch (final OtpErlangDecodeException e) {
-		    System.out.println("   " + "can't decode output buffer: "
-			    + e);
-		}
-	    }
-	    header.writeTo(socket.getOutputStream());
-	} catch (final IOException e) {
-	    close();
-	    throw e;
-	}
+            throws IOException {
+        try {
+            if (traceLevel >= ctrlThreshold) {
+                try {
+                    final OtpErlangObject h = header.getOtpInputStream(5)
+                            .read_any();
+                    System.out.println("-> " + headerType(h) + " " + h);
+                } catch (final OtpErlangDecodeException e) {
+                    System.out.println("   " + "can't decode output buffer: "
+                            + e);
+                }
+            }
+            header.writeToAndFlush(socket.getOutputStream());
+        } catch (final IOException e) {
+            close();
+            throw e;
+        }
     }
 
     protected String headerType(final OtpErlangObject h) {
-	int tag = -1;
+        int tag = -1;
 
-	if (h instanceof OtpErlangTuple) {
-	    tag = (int) ((OtpErlangLong) ((OtpErlangTuple) h).elementAt(0))
-		    .longValue();
-	}
+        if (h instanceof OtpErlangTuple) {
+            tag = (int) ((OtpErlangLong) ((OtpErlangTuple) h).elementAt(0))
+                    .longValue();
+        }
 
-	switch (tag) {
-	case linkTag:
-	    return "LINK";
+        switch (tag) {
+        case linkTag:
+            return "LINK";
 
-	case sendTag:
-	    return "SEND";
+        case sendTag:
+            return "SEND";
 
-	case exitTag:
-	    return "EXIT";
+        case exitTag:
+            return "EXIT";
 
-	case unlinkTag:
-	    return "UNLINK";
+        case unlinkTag:
+            return "UNLINK";
 
-	case regSendTag:
-	    return "REG_SEND";
+        case regSendTag:
+            return "REG_SEND";
 
-	case groupLeaderTag:
-	    return "GROUP_LEADER";
+        case groupLeaderTag:
+            return "GROUP_LEADER";
 
-	case exit2Tag:
-	    return "EXIT2";
+        case exit2Tag:
+            return "EXIT2";
 
-	case sendTTTag:
-	    return "SEND_TT";
+        case sendTTTag:
+            return "SEND_TT";
 
-	case exitTTTag:
-	    return "EXIT_TT";
+        case exitTTTag:
+            return "EXIT_TT";
 
-	case regSendTTTag:
-	    return "REG_SEND_TT";
+        case regSendTTTag:
+            return "REG_SEND_TT";
 
-	case exit2TTTag:
-	    return "EXIT2_TT";
-	}
+        case exit2TTTag:
+            return "EXIT2_TT";
+        }
 
-	return "(unknown type)";
+        return "(unknown type)";
     }
 
     /* this method now throws exception if we don't get full read */
-    protected int readSock(final Socket s, final byte[] b) throws IOException {
-	int got = 0;
-	final int len = b.length;
-	int i;
-
-	synchronized (this) {
-	    if (s == null) {
-		throw new IOException("expected " + len
-			+ " bytes, socket was closed");
-	    }
-	}
-
-	while (got < len) {
-        i = s.getInputStream().read(b, got, len - got);
-
-	    if (i < 0) {
-		throw new IOException("expected " + len
-			+ " bytes, got EOF after " + got + " bytes");
-	    } else if (i == 0 && len != 0) {
-		/*
-		 * This is a corner case. According to
-		 * http://java.sun.com/j2se/1.4.2/docs/api/ class InputStream
-		 * is.read(,,l) can only return 0 if l==0. In other words it
-		 * should not happen, but apparently did.
-		 */
-		throw new IOException("Remote connection closed");
-	    } else {
-		got += i;
-	    }
-	}
-	return got;
+    protected int readSock(final OtpTransport s, final byte[] b)
+            throws IOException {
+        int got = 0;
+        final int len = b.length;
+        int i;
+
+        synchronized (this) {
+            if (s == null) {
+                throw new IOException("expected " + len
+                        + " bytes, socket was closed");
+            }
+        }
+
+        while (got < len) {
+            i = s.getInputStream().read(b, got, len - got);
+
+            if (i < 0) {
+                throw new IOException("expected " + len
+                        + " bytes, got EOF after " + got + " bytes");
+            } else if (i == 0 && len != 0) {
+                /*
+                 * This is a corner case. According to
+                 * http://java.sun.com/j2se/1.4.2/docs/api/ class InputStream
+                 * is.read(,,l) can only return 0 if l==0. In other words it
+                 * should not happen, but apparently did.
+                 */
+                throw new IOException("Remote connection closed");
+            } else {
+                got += i;
+            }
+        }
+        return got;
     }
 
     protected void doAccept() throws IOException, OtpAuthException {
-	try {
-	    sendStatus("ok");
-	    final int our_challenge = genChallenge();
-	    sendChallenge(peer.distChoose, localNode.flags, our_challenge);
-	    final int her_challenge = recvChallengeReply(our_challenge);
-	    final byte[] our_digest = genDigest(her_challenge, localNode.cookie());
-	    sendChallengeAck(our_digest);
-	    connected = true;
-	    cookieOk = true;
-	    sendCookie = false;
-	} catch (final IOException ie) {
-	    close();
-	    throw ie;
-	} catch (final OtpAuthException ae) {
-	    close();
-	    throw ae;
-	} catch (final Exception e) {
-	    final String nn = peer.node();
-	    close();
-	    IOException ioe = new IOException("Error accepting connection from " + nn);
-	    ioe.initCause(e);
-	    throw ioe;
-	}
-	if (traceLevel >= handshakeThreshold) {
-	    System.out.println("<- MD5 ACCEPTED " + peer.host());
-	}
+        try {
+            sendStatus("ok");
+            final int our_challenge = genChallenge();
+            sendChallenge(peer.distChoose, localNode.flags, our_challenge);
+            final int her_challenge = recvChallengeReply(our_challenge);
+            final byte[] our_digest = genDigest(her_challenge,
+                    localNode.cookie());
+            sendChallengeAck(our_digest);
+            connected = true;
+            cookieOk = true;
+            sendCookie = false;
+        } catch (final IOException ie) {
+            close();
+            throw ie;
+        } catch (final OtpAuthException ae) {
+            close();
+            throw ae;
+        } catch (final Exception e) {
+            final String nn = peer.node();
+            close();
+            final IOException ioe = new IOException(
+                    "Error accepting connection from " + nn);
+            ioe.initCause(e);
+            throw ioe;
+        }
+        if (traceLevel >= handshakeThreshold) {
+            System.out.println("<- MD5 ACCEPTED " + peer.host());
+        }
     }
 
     protected void doConnect(final int port) throws IOException,
-	    OtpAuthException {
-	try {
-	    socket = new Socket(peer.host(), port);
-	    socket.setTcpNoDelay(true);
-
-	    if (traceLevel >= handshakeThreshold) {
-		System.out.println("-> MD5 CONNECT TO " + peer.host() + ":"
-			+ port);
-	    }
-	    sendName(peer.distChoose, localNode.flags);
-	    recvStatus();
-	    final int her_challenge = recvChallenge();
-	    final byte[] our_digest = genDigest(her_challenge, localNode.cookie());
-	    final int our_challenge = genChallenge();
-	    sendChallengeReply(our_challenge, our_digest);
-	    recvChallengeAck(our_challenge);
-	    cookieOk = true;
-	    sendCookie = false;
-	} catch (final OtpAuthException ae) {
-	    close();
-	    throw ae;
-	} catch (final Exception e) {
-	    close();
-	    IOException ioe = new IOException("Cannot connect to peer node");
-	    ioe.initCause(e);
-	    throw ioe;
-	}
+            OtpAuthException {
+        try {
+            socket = peer.createTransport(peer.host(), port);
+
+            if (traceLevel >= handshakeThreshold) {
+                System.out.println("-> MD5 CONNECT TO " + peer.host() + ":"
+                        + port);
+            }
+            sendName(peer.distChoose, localNode.flags);
+            recvStatus();
+            final int her_challenge = recvChallenge();
+            final byte[] our_digest = genDigest(her_challenge,
+                    localNode.cookie());
+            final int our_challenge = genChallenge();
+            sendChallengeReply(our_challenge, our_digest);
+            recvChallengeAck(our_challenge);
+            cookieOk = true;
+            sendCookie = false;
+        } catch (final OtpAuthException ae) {
+            close();
+            throw ae;
+        } catch (final Exception e) {
+            close();
+            final IOException ioe = new IOException(
+                    "Cannot connect to peer node");
+            ioe.initCause(e);
+            throw ioe;
+        }
     }
 
     // This is nooo good as a challenge,
     // XXX fix me.
     static protected int genChallenge() {
-	return random.nextInt();
+        return random.nextInt();
     }
 
     // Used to debug print a message digest
     static String hex0(final byte x) {
-	final char tab[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
-		'a', 'b', 'c', 'd', 'e', 'f' };
-	int uint;
-	if (x < 0) {
-	    uint = x & 0x7F;
-	    uint |= 1 << 7;
-	} else {
-	    uint = x;
-	}
-	return "" + tab[uint >>> 4] + tab[uint & 0xF];
+        final char tab[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
+                'a', 'b', 'c', 'd', 'e', 'f' };
+        int uint;
+        if (x < 0) {
+            uint = x & 0x7F;
+            uint |= 1 << 7;
+        } else {
+            uint = x;
+        }
+        return "" + tab[uint >>> 4] + tab[uint & 0xF];
     }
 
     static String hex(final byte[] b) {
-	final StringBuffer sb = new StringBuffer();
-	try {
-	    int i;
-	    for (i = 0; i < b.length; ++i) {
-		sb.append(hex0(b[i]));
-	    }
-	} catch (final Exception e) {
-	    // Debug function, ignore errors.
-	}
-	return sb.toString();
+        final StringBuffer sb = new StringBuffer();
+        try {
+            int i;
+            for (i = 0; i < b.length; ++i) {
+                sb.append(hex0(b[i]));
+            }
+        } catch (final Exception e) {
+            // Debug function, ignore errors.
+        }
+        return sb.toString();
 
     }
 
     protected byte[] genDigest(final int challenge, final String cookie) {
-	int i;
-	long ch2;
-
-	if (challenge < 0) {
-	    ch2 = 1L << 31;
-	    ch2 |= challenge & 0x7FFFFFFF;
-	} else {
-	    ch2 = challenge;
-	}
-	final OtpMD5 context = new OtpMD5();
-	context.update(cookie);
-	context.update("" + ch2);
-
-	final int[] tmp = context.final_bytes();
-	final byte[] res = new byte[tmp.length];
-	for (i = 0; i < tmp.length; ++i) {
-	    res[i] = (byte) (tmp[i] & 0xFF);
-	}
-	return res;
+        int i;
+        long ch2;
+
+        if (challenge < 0) {
+            ch2 = 1L << 31;
+            ch2 |= challenge & 0x7FFFFFFF;
+        } else {
+            ch2 = challenge;
+        }
+        final OtpMD5 context = new OtpMD5();
+        context.update(cookie);
+        context.update("" + ch2);
+
+        final int[] tmp = context.final_bytes();
+        final byte[] res = new byte[tmp.length];
+        for (i = 0; i < tmp.length; ++i) {
+            res[i] = (byte) (tmp[i] & 0xFF);
+        }
+        return res;
     }
 
-    protected void sendName(final int dist, final int aflags) throws IOException {
+    protected void sendName(final int dist, final int aflags)
+            throws IOException {
 
-    @SuppressWarnings("resource")
-	final OtpOutputStream obuf = new OtpOutputStream();
-	final String str = localNode.node();
-	obuf.write2BE(str.length() + 7); // 7 bytes + nodename
-	obuf.write1(AbstractNode.NTYPE_R6);
-	obuf.write2BE(dist);
-	obuf.write4BE(aflags);
-	obuf.write(str.getBytes());
-
-	obuf.writeTo(socket.getOutputStream());
-
-	if (traceLevel >= handshakeThreshold) {
-	    System.out.println("-> " + "HANDSHAKE sendName" + " flags=" + aflags
-		    + " dist=" + dist + " local=" + localNode);
-	}
+        @SuppressWarnings("resource")
+        final OtpOutputStream obuf = new OtpOutputStream();
+        final String str = localNode.node();
+        obuf.write2BE(str.length() + 7); // 7 bytes + nodename
+        obuf.write1(AbstractNode.NTYPE_R6);
+        obuf.write2BE(dist);
+        obuf.write4BE(aflags);
+        obuf.write(str.getBytes());
+
+        obuf.writeToAndFlush(socket.getOutputStream());
+
+        if (traceLevel >= handshakeThreshold) {
+            System.out.println("-> " + "HANDSHAKE sendName" + " flags="
+                    + aflags + " dist=" + dist + " local=" + localNode);
+        }
     }
 
     protected void sendChallenge(final int dist, final int aflags,
-	    final int challenge) throws IOException {
+            final int challenge) throws IOException {
 
-    @SuppressWarnings("resource")
-	final OtpOutputStream obuf = new OtpOutputStream();
-	final String str = localNode.node();
-	obuf.write2BE(str.length() + 11); // 11 bytes + nodename
-	obuf.write1(AbstractNode.NTYPE_R6);
-	obuf.write2BE(dist);
-	obuf.write4BE(aflags);
-	obuf.write4BE(challenge);
-	obuf.write(str.getBytes());
-
-	obuf.writeTo(socket.getOutputStream());
-
-	if (traceLevel >= handshakeThreshold) {
-	    System.out.println("-> " + "HANDSHAKE sendChallenge" + " flags="
-		    + aflags + " dist=" + dist + " challenge=" + challenge
-		    + " local=" + localNode);
-	}
+        @SuppressWarnings("resource")
+        final OtpOutputStream obuf = new OtpOutputStream();
+        final String str = localNode.node();
+        obuf.write2BE(str.length() + 11); // 11 bytes + nodename
+        obuf.write1(AbstractNode.NTYPE_R6);
+        obuf.write2BE(dist);
+        obuf.write4BE(aflags);
+        obuf.write4BE(challenge);
+        obuf.write(str.getBytes());
+
+        obuf.writeToAndFlush(socket.getOutputStream());
+
+        if (traceLevel >= handshakeThreshold) {
+            System.out.println("-> " + "HANDSHAKE sendChallenge" + " flags="
+                    + aflags + " dist=" + dist + " challenge=" + challenge
+                    + " local=" + localNode);
+        }
     }
 
     protected byte[] read2BytePackage() throws IOException,
-	    OtpErlangDecodeException {
+            OtpErlangDecodeException {
 
-	final byte[] lbuf = new byte[2];
-	byte[] tmpbuf;
+        final byte[] lbuf = new byte[2];
+        byte[] tmpbuf;
 
-	readSock(socket, lbuf);
-    @SuppressWarnings("resource")
-	final OtpInputStream ibuf = new OtpInputStream(lbuf, 0);
-	final int len = ibuf.read2BE();
-	tmpbuf = new byte[len];
-	readSock(socket, tmpbuf);
-	return tmpbuf;
+        readSock(socket, lbuf);
+        @SuppressWarnings("resource")
+        final OtpInputStream ibuf = new OtpInputStream(lbuf, 0);
+        final int len = ibuf.read2BE();
+        tmpbuf = new byte[len];
+        readSock(socket, tmpbuf);
+        return tmpbuf;
     }
 
     protected void recvName(final OtpPeer apeer) throws IOException {
 
-	String hisname = "";
-
-	try {
-	    final byte[] tmpbuf = read2BytePackage();
-        @SuppressWarnings("resource")
-	    final OtpInputStream ibuf = new OtpInputStream(tmpbuf, 0);
-	    byte[] tmpname;
-	    final int len = tmpbuf.length;
-	    apeer.ntype = ibuf.read1();
-	    if (apeer.ntype != AbstractNode.NTYPE_R6) {
-		throw new IOException("Unknown remote node type");
-	    }
-	    apeer.distLow = apeer.distHigh = ibuf.read2BE();
-	    if (apeer.distLow < 5) {
-		throw new IOException("Unknown remote node type");
-	    }
-	    apeer.flags = ibuf.read4BE();
-	    tmpname = new byte[len - 7];
-	    ibuf.readN(tmpname);
-	    hisname = OtpErlangString.newString(tmpname);
-	    // Set the old nodetype parameter to indicate hidden/normal status
-	    // When the old handshake is removed, the ntype should also be.
-	    if ((apeer.flags & AbstractNode.dFlagPublished) != 0) {
-		apeer.ntype = AbstractNode.NTYPE_R4_ERLANG;
-	    } else {
-		apeer.ntype = AbstractNode.NTYPE_R4_HIDDEN;
-	    }
-
-	    if ((apeer.flags & AbstractNode.dFlagExtendedReferences) == 0) {
-		throw new IOException(
-			"Handshake failed - peer cannot handle extended references");
-	    }
-
-	    if ((apeer.flags & AbstractNode.dFlagExtendedPidsPorts) == 0) {
-		throw new IOException(
-			"Handshake failed - peer cannot handle extended pids and ports");
-	    }
-
-	} catch (final OtpErlangDecodeException e) {
-	    throw new IOException("Handshake failed - not enough data");
-	}
-
-	final int i = hisname.indexOf('@', 0);
-	apeer.node = hisname;
-	apeer.alive = hisname.substring(0, i);
-	apeer.host = hisname.substring(i + 1, hisname.length());
-
-	if (traceLevel >= handshakeThreshold) {
-	    System.out.println("<- " + "HANDSHAKE" + " ntype=" + apeer.ntype
-		    + " dist=" + apeer.distHigh + " remote=" + apeer);
-	}
+        String hisname = "";
+
+        try {
+            final byte[] tmpbuf = read2BytePackage();
+            @SuppressWarnings("resource")
+            final OtpInputStream ibuf = new OtpInputStream(tmpbuf, 0);
+            byte[] tmpname;
+            final int len = tmpbuf.length;
+            apeer.ntype = ibuf.read1();
+            if (apeer.ntype != AbstractNode.NTYPE_R6) {
+                throw new IOException("Unknown remote node type");
+            }
+            apeer.distLow = apeer.distHigh = ibuf.read2BE();
+            if (apeer.distLow < 5) {
+                throw new IOException("Unknown remote node type");
+            }
+            apeer.flags = ibuf.read4BE();
+            tmpname = new byte[len - 7];
+            ibuf.readN(tmpname);
+            hisname = OtpErlangString.newString(tmpname);
+            // Set the old nodetype parameter to indicate hidden/normal status
+            // When the old handshake is removed, the ntype should also be.
+            if ((apeer.flags & AbstractNode.dFlagPublished) != 0) {
+                apeer.ntype = AbstractNode.NTYPE_R4_ERLANG;
+            } else {
+                apeer.ntype = AbstractNode.NTYPE_R4_HIDDEN;
+            }
+
+            if ((apeer.flags & AbstractNode.dFlagExtendedReferences) == 0) {
+                throw new IOException(
+                        "Handshake failed - peer cannot handle extended references");
+            }
+
+            if ((apeer.flags & AbstractNode.dFlagExtendedPidsPorts) == 0) {
+                throw new IOException(
+                        "Handshake failed - peer cannot handle extended pids and ports");
+            }
+
+        } catch (final OtpErlangDecodeException e) {
+            throw new IOException("Handshake failed - not enough data");
+        }
+
+        final int i = hisname.indexOf('@', 0);
+        apeer.node = hisname;
+        apeer.alive = hisname.substring(0, i);
+        apeer.host = hisname.substring(i + 1, hisname.length());
+
+        if (traceLevel >= handshakeThreshold) {
+            System.out.println("<- " + "HANDSHAKE" + " ntype=" + apeer.ntype
+                    + " dist=" + apeer.distHigh + " remote=" + apeer);
+        }
     }
 
     protected int recvChallenge() throws IOException {
 
-	int challenge;
-
-	try {
-	    final byte[] buf = read2BytePackage();
-        @SuppressWarnings("resource")
-	    final OtpInputStream ibuf = new OtpInputStream(buf, 0);
-	    peer.ntype = ibuf.read1();
-	    if (peer.ntype != AbstractNode.NTYPE_R6) {
-		throw new IOException("Unexpected peer type");
-	    }
-	    peer.distLow = peer.distHigh = ibuf.read2BE();
-	    peer.flags = ibuf.read4BE();
-	    challenge = ibuf.read4BE();
-	    final byte[] tmpname = new byte[buf.length - 11];
-	    ibuf.readN(tmpname);
-	    final String hisname = OtpErlangString.newString(tmpname);
-	    if (!hisname.equals(peer.node)) {
-		throw new IOException(
-			"Handshake failed - peer has wrong name: " + hisname);
-	    }
-
-	    if ((peer.flags & AbstractNode.dFlagExtendedReferences) == 0) {
-		throw new IOException(
-			"Handshake failed - peer cannot handle extended references");
-	    }
-
-	    if ((peer.flags & AbstractNode.dFlagExtendedPidsPorts) == 0) {
-		throw new IOException(
-			"Handshake failed - peer cannot handle extended pids and ports");
-	    }
-
-	} catch (final OtpErlangDecodeException e) {
-	    throw new IOException("Handshake failed - not enough data");
-	}
-
-	if (traceLevel >= handshakeThreshold) {
-	    System.out.println("<- " + "HANDSHAKE recvChallenge" + " from="
-		    + peer.node + " challenge=" + challenge + " local=" + localNode);
-	}
-
-	return challenge;
+        int challenge;
+
+        try {
+            final byte[] buf = read2BytePackage();
+            @SuppressWarnings("resource")
+            final OtpInputStream ibuf = new OtpInputStream(buf, 0);
+            peer.ntype = ibuf.read1();
+            if (peer.ntype != AbstractNode.NTYPE_R6) {
+                throw new IOException("Unexpected peer type");
+            }
+            peer.distLow = peer.distHigh = ibuf.read2BE();
+            peer.flags = ibuf.read4BE();
+            challenge = ibuf.read4BE();
+            final byte[] tmpname = new byte[buf.length - 11];
+            ibuf.readN(tmpname);
+            final String hisname = OtpErlangString.newString(tmpname);
+            if (!hisname.equals(peer.node)) {
+                throw new IOException(
+                        "Handshake failed - peer has wrong name: " + hisname);
+            }
+
+            if ((peer.flags & AbstractNode.dFlagExtendedReferences) == 0) {
+                throw new IOException(
+                        "Handshake failed - peer cannot handle extended references");
+            }
+
+            if ((peer.flags & AbstractNode.dFlagExtendedPidsPorts) == 0) {
+                throw new IOException(
+                        "Handshake failed - peer cannot handle extended pids and ports");
+            }
+
+        } catch (final OtpErlangDecodeException e) {
+            throw new IOException("Handshake failed - not enough data");
+        }
+
+        if (traceLevel >= handshakeThreshold) {
+            System.out.println("<- " + "HANDSHAKE recvChallenge" + " from="
+                    + peer.node + " challenge=" + challenge + " local="
+                    + localNode);
+        }
+
+        return challenge;
     }
 
     protected void sendChallengeReply(final int challenge, final byte[] digest)
-	    throws IOException {
+            throws IOException {
 
-    @SuppressWarnings("resource")
-	final OtpOutputStream obuf = new OtpOutputStream();
-	obuf.write2BE(21);
-	obuf.write1(ChallengeReply);
-	obuf.write4BE(challenge);
-	obuf.write(digest);
-	obuf.writeTo(socket.getOutputStream());
-
-	if (traceLevel >= handshakeThreshold) {
-	    System.out.println("-> " + "HANDSHAKE sendChallengeReply"
-		    + " challenge=" + challenge + " digest=" + hex(digest)
-		    + " local=" + localNode);
-	}
+        @SuppressWarnings("resource")
+        final OtpOutputStream obuf = new OtpOutputStream();
+        obuf.write2BE(21);
+        obuf.write1(ChallengeReply);
+        obuf.write4BE(challenge);
+        obuf.write(digest);
+        obuf.writeToAndFlush(socket.getOutputStream());
+
+        if (traceLevel >= handshakeThreshold) {
+            System.out.println("-> " + "HANDSHAKE sendChallengeReply"
+                    + " challenge=" + challenge + " digest=" + hex(digest)
+                    + " local=" + localNode);
+        }
     }
 
     // Would use Array.equals in newer JDK...
     private boolean digests_equals(final byte[] a, final byte[] b) {
-	int i;
-	for (i = 0; i < 16; ++i) {
-	    if (a[i] != b[i]) {
-		return false;
-	    }
-	}
-	return true;
+        int i;
+        for (i = 0; i < 16; ++i) {
+            if (a[i] != b[i]) {
+                return false;
+            }
+        }
+        return true;
     }
 
     protected int recvChallengeReply(final int our_challenge)
-	    throws IOException, OtpAuthException {
-
-	int challenge;
-	final byte[] her_digest = new byte[16];
-
-	try {
-	    final byte[] buf = read2BytePackage();
-        @SuppressWarnings("resource")
-	    final OtpInputStream ibuf = new OtpInputStream(buf, 0);
-	    final int tag = ibuf.read1();
-	    if (tag != ChallengeReply) {
-		throw new IOException("Handshake protocol error");
-	    }
-	    challenge = ibuf.read4BE();
-	    ibuf.readN(her_digest);
-	    final byte[] our_digest = genDigest(our_challenge, localNode.cookie());
-	    if (!digests_equals(her_digest, our_digest)) {
-		throw new OtpAuthException("Peer authentication error.");
-	    }
-	} catch (final OtpErlangDecodeException e) {
-	    throw new IOException("Handshake failed - not enough data");
-	}
-
-	if (traceLevel >= handshakeThreshold) {
-	    System.out.println("<- " + "HANDSHAKE recvChallengeReply"
-		    + " from=" + peer.node + " challenge=" + challenge
-		    + " digest=" + hex(her_digest) + " local=" + localNode);
-	}
-
-	return challenge;
+            throws IOException, OtpAuthException {
+
+        int challenge;
+        final byte[] her_digest = new byte[16];
+
+        try {
+            final byte[] buf = read2BytePackage();
+            @SuppressWarnings("resource")
+            final OtpInputStream ibuf = new OtpInputStream(buf, 0);
+            final int tag = ibuf.read1();
+            if (tag != ChallengeReply) {
+                throw new IOException("Handshake protocol error");
+            }
+            challenge = ibuf.read4BE();
+            ibuf.readN(her_digest);
+            final byte[] our_digest = genDigest(our_challenge,
+                    localNode.cookie());
+            if (!digests_equals(her_digest, our_digest)) {
+                throw new OtpAuthException("Peer authentication error.");
+            }
+        } catch (final OtpErlangDecodeException e) {
+            throw new IOException("Handshake failed - not enough data");
+        }
+
+        if (traceLevel >= handshakeThreshold) {
+            System.out.println("<- " + "HANDSHAKE recvChallengeReply"
+                    + " from=" + peer.node + " challenge=" + challenge
+                    + " digest=" + hex(her_digest) + " local=" + localNode);
+        }
+
+        return challenge;
     }
 
     protected void sendChallengeAck(final byte[] digest) throws IOException {
 
-    @SuppressWarnings("resource")
-	final OtpOutputStream obuf = new OtpOutputStream();
-	obuf.write2BE(17);
-	obuf.write1(ChallengeAck);
-	obuf.write(digest);
+        @SuppressWarnings("resource")
+        final OtpOutputStream obuf = new OtpOutputStream();
+        obuf.write2BE(17);
+        obuf.write1(ChallengeAck);
+        obuf.write(digest);
 
-	obuf.writeTo(socket.getOutputStream());
+        obuf.writeToAndFlush(socket.getOutputStream());
 
-	if (traceLevel >= handshakeThreshold) {
-	    System.out.println("-> " + "HANDSHAKE sendChallengeAck"
-		    + " digest=" + hex(digest) + " local=" + localNode);
-	}
+        if (traceLevel >= handshakeThreshold) {
+            System.out.println("-> " + "HANDSHAKE sendChallengeAck"
+                    + " digest=" + hex(digest) + " local=" + localNode);
+        }
     }
 
     protected void recvChallengeAck(final int our_challenge)
-	    throws IOException, OtpAuthException {
-
-	final byte[] her_digest = new byte[16];
-	try {
-	    final byte[] buf = read2BytePackage();
-        @SuppressWarnings("resource")
-	    final OtpInputStream ibuf = new OtpInputStream(buf, 0);
-	    final int tag = ibuf.read1();
-	    if (tag != ChallengeAck) {
-		throw new IOException("Handshake protocol error");
-	    }
-	    ibuf.readN(her_digest);
-	    final byte[] our_digest = genDigest(our_challenge, localNode.cookie());
-	    if (!digests_equals(her_digest, our_digest)) {
-		throw new OtpAuthException("Peer authentication error.");
-	    }
-	} catch (final OtpErlangDecodeException e) {
-	    throw new IOException("Handshake failed - not enough data");
-	} catch (final Exception e) {
-	    throw new OtpAuthException("Peer authentication error.");
-	}
-
-	if (traceLevel >= handshakeThreshold) {
-	    System.out.println("<- " + "HANDSHAKE recvChallengeAck" + " from="
-		    + peer.node + " digest=" + hex(her_digest) + " local="
-		    + localNode);
-	}
+            throws IOException, OtpAuthException {
+
+        final byte[] her_digest = new byte[16];
+        try {
+            final byte[] buf = read2BytePackage();
+            @SuppressWarnings("resource")
+            final OtpInputStream ibuf = new OtpInputStream(buf, 0);
+            final int tag = ibuf.read1();
+            if (tag != ChallengeAck) {
+                throw new IOException("Handshake protocol error");
+            }
+            ibuf.readN(her_digest);
+            final byte[] our_digest = genDigest(our_challenge,
+                    localNode.cookie());
+            if (!digests_equals(her_digest, our_digest)) {
+                throw new OtpAuthException("Peer authentication error.");
+            }
+        } catch (final OtpErlangDecodeException e) {
+            throw new IOException("Handshake failed - not enough data");
+        } catch (final Exception e) {
+            throw new OtpAuthException("Peer authentication error.");
+        }
+
+        if (traceLevel >= handshakeThreshold) {
+            System.out.println("<- " + "HANDSHAKE recvChallengeAck" + " from="
+                    + peer.node + " digest=" + hex(her_digest) + " local="
+                    + localNode);
+        }
     }
 
     protected void sendStatus(final String status) throws IOException {
 
-    @SuppressWarnings("resource")
-	final OtpOutputStream obuf = new OtpOutputStream();
-	obuf.write2BE(status.length() + 1);
-	obuf.write1(ChallengeStatus);
-	obuf.write(status.getBytes());
+        @SuppressWarnings("resource")
+        final OtpOutputStream obuf = new OtpOutputStream();
+        obuf.write2BE(status.length() + 1);
+        obuf.write1(ChallengeStatus);
+        obuf.write(status.getBytes());
 
-	obuf.writeTo(socket.getOutputStream());
+        obuf.writeToAndFlush(socket.getOutputStream());
 
-	if (traceLevel >= handshakeThreshold) {
-	    System.out.println("-> " + "HANDSHAKE sendStatus" + " status="
-		    + status + " local=" + localNode);
-	}
+        if (traceLevel >= handshakeThreshold) {
+            System.out.println("-> " + "HANDSHAKE sendStatus" + " status="
+                    + status + " local=" + localNode);
+        }
     }
 
     protected void recvStatus() throws IOException {
 
-	try {
-	    final byte[] buf = read2BytePackage();
-        @SuppressWarnings("resource")
-	    final OtpInputStream ibuf = new OtpInputStream(buf, 0);
-	    final int tag = ibuf.read1();
-	    if (tag != ChallengeStatus) {
-		throw new IOException("Handshake protocol error");
-	    }
-	    final byte[] tmpbuf = new byte[buf.length - 1];
-	    ibuf.readN(tmpbuf);
-	    final String status = OtpErlangString.newString(tmpbuf);
-
-	    if (status.compareTo("ok") != 0) {
-		throw new IOException("Peer replied with status '" + status
-			+ "' instead of 'ok'");
-	    }
-	} catch (final OtpErlangDecodeException e) {
-	    throw new IOException("Handshake failed - not enough data");
-	}
-	if (traceLevel >= handshakeThreshold) {
-	    System.out.println("<- " + "HANDSHAKE recvStatus (ok)" + " local="
-		    + localNode);
-	}
+        try {
+            final byte[] buf = read2BytePackage();
+            @SuppressWarnings("resource")
+            final OtpInputStream ibuf = new OtpInputStream(buf, 0);
+            final int tag = ibuf.read1();
+            if (tag != ChallengeStatus) {
+                throw new IOException("Handshake protocol error");
+            }
+            final byte[] tmpbuf = new byte[buf.length - 1];
+            ibuf.readN(tmpbuf);
+            final String status = OtpErlangString.newString(tmpbuf);
+
+            if (status.compareTo("ok") != 0) {
+                throw new IOException("Peer replied with status '" + status
+                        + "' instead of 'ok'");
+            }
+        } catch (final OtpErlangDecodeException e) {
+            throw new IOException("Handshake failed - not enough data");
+        }
+        if (traceLevel >= handshakeThreshold) {
+            System.out.println("<- " + "HANDSHAKE recvStatus (ok)" + " local="
+                    + localNode);
+        }
     }
 
     public void setFlags(final int flags) {
-	this.flags = flags;
+        this.flags = flags;
     }
 
     public int getFlags() {
-	return flags;
+        return flags;
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/AbstractNode.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/AbstractNode.java
index 3bb1bbbd18..0a33984b31 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/AbstractNode.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/AbstractNode.java
@@ -1,20 +1,20 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2014. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
- * %CopyrightEnd% 
+ *
+ * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
@@ -29,7 +29,7 @@ import java.net.UnknownHostException;
  * <p>
  * Represents an OTP node.
  * </p>
- * 
+ *
  * <p>
  * About nodenames: Erlang nodenames consist of two components, an alivename and
  * a hostname separated by '@'. Additionally, there are two nodename formats:
@@ -40,7 +40,7 @@ import java.net.UnknownHostException;
  * however Jinterface makes no distinction. See the Erlang documentation for
  * more information about nodenames.
  * </p>
- * 
+ *
  * <p>
  * The constructors for the AbstractNode classes will create names exactly as
  * you provide them as long as the name contains '@'. If the string you provide
@@ -48,7 +48,7 @@ import java.net.UnknownHostException;
  * host will be appended, resulting in a shortname. Nodenames longer than 255
  * characters will be truncated without warning.
  * </p>
- * 
+ *
  * <p>
  * Upon initialization, this class attempts to read the file .erlang.cookie in
  * the user's home directory, and uses the trimmed first line of the file as the
@@ -58,19 +58,20 @@ import java.net.UnknownHostException;
  * using the system property "user.home", which may not be automatically set on
  * all platforms.
  * </p>
- * 
+ *
  * <p>
  * Instances of this class cannot be created directly, use one of the subclasses
  * instead.
  * </p>
  */
-public class AbstractNode {
+public class AbstractNode implements OtpTransportFactory {
     static String localHost = null;
     String node;
     String host;
     String alive;
     String cookie;
     static String defaultCookie = null;
+    final OtpTransportFactory transportFactory;
 
     // Node types
     static final int NTYPE_R6 = 110; // 'n' post-r5, all nodes
@@ -100,172 +101,207 @@ public class AbstractNode {
     int distLow = 5; // Cannot talk to nodes before R6
     int creation = 0;
     int flags = dFlagExtendedReferences | dFlagExtendedPidsPorts
-	    | dFlagBitBinaries | dFlagNewFloats | dFlagFunTags
-	    | dflagNewFunTags | dFlagUtf8Atoms | dFlagMapTag;
+            | dFlagBitBinaries | dFlagNewFloats | dFlagFunTags
+            | dflagNewFunTags | dFlagUtf8Atoms | dFlagMapTag;
 
     /* initialize hostname and default cookie */
     static {
-	try {
-	    localHost = InetAddress.getLocalHost().getHostName();
-	    /*
-	     * Make sure it's a short name, i.e. strip of everything after first
-	     * '.'
-	     */
-	    final int dot = localHost.indexOf(".");
-	    if (dot != -1) {
-		localHost = localHost.substring(0, dot);
-	    }
-	} catch (final UnknownHostException e) {
-	    localHost = "localhost";
-	}
-
-	final String homeDir = getHomeDir();
-	final String dotCookieFilename = homeDir + File.separator
+        try {
+            localHost = InetAddress.getLocalHost().getHostName();
+            /*
+             * Make sure it's a short name, i.e. strip of everything after first
+             * '.'
+             */
+            final int dot = localHost.indexOf(".");
+            if (dot != -1) {
+                localHost = localHost.substring(0, dot);
+            }
+        } catch (final UnknownHostException e) {
+            localHost = "localhost";
+        }
+
+        final String homeDir = getHomeDir();
+        final String dotCookieFilename = homeDir + File.separator
                 + ".erlang.cookie";
-	BufferedReader br = null;
-
-	try {
-	    final File dotCookieFile = new File(dotCookieFilename);
-
-	    br = new BufferedReader(new FileReader(dotCookieFile));
-			final String line = br.readLine();
-			if (line == null) {
-				defaultCookie = "";
-			} else {
-				defaultCookie = line.trim();
-			}
-	} catch (final IOException e) {
-	    defaultCookie = "";
-	} finally {
-	    try {
-		if (br != null) {
-		    br.close();
-		}
-	    } catch (final IOException e) {
-	    }
-	}
+        BufferedReader br = null;
+
+        try {
+            final File dotCookieFile = new File(dotCookieFilename);
+
+            br = new BufferedReader(new FileReader(dotCookieFile));
+            final String line = br.readLine();
+            if (line == null) {
+                defaultCookie = "";
+            } else {
+                defaultCookie = line.trim();
+            }
+        } catch (final IOException e) {
+            defaultCookie = "";
+        } finally {
+            try {
+                if (br != null) {
+                    br.close();
+                }
+            } catch (final IOException e) {
+            }
+        }
     }
 
-    protected AbstractNode() {
+    protected AbstractNode(final OtpTransportFactory transportFactory) {
+        this.transportFactory = transportFactory;
     }
 
     /**
-     * Create a node with the given name and the default cookie.
+     * Create a node with the given name and default cookie and transport
+     * factory.
      */
     protected AbstractNode(final String node) {
-	this(node, defaultCookie);
+        this(node, defaultCookie, new OtpSocketTransportFactory());
+    }
+
+    /**
+     * Create a node with the given name, transport factory and the default
+     * cookie.
+     */
+    protected AbstractNode(final String node,
+            final OtpTransportFactory transportFactory) {
+        this(node, defaultCookie, transportFactory);
     }
 
     /**
-     * Create a node with the given name and cookie.
+     * Create a node with the given name, cookie and default transport factory.
      */
     protected AbstractNode(final String name, final String cookie) {
-	this.cookie = cookie;
-
-	final int i = name.indexOf('@', 0);
-	if (i < 0) {
-	    alive = name;
-	    host = localHost;
-	} else {
-	    alive = name.substring(0, i);
-	    host = name.substring(i + 1, name.length());
-	}
-
-	if (alive.length() > 0xff) {
-	    alive = alive.substring(0, 0xff);
-	}
-
-	node = alive + "@" + host;
+        this(name, cookie, new OtpSocketTransportFactory());
+    }
+
+    /**
+     * Create a node with the given name, cookie and transport factory.
+     */
+    protected AbstractNode(final String name, final String cookie,
+            final OtpTransportFactory transportFactory) {
+        this.cookie = cookie;
+        this.transportFactory = transportFactory;
+
+        final int i = name.indexOf('@', 0);
+        if (i < 0) {
+            alive = name;
+            host = localHost;
+        } else {
+            alive = name.substring(0, i);
+            host = name.substring(i + 1, name.length());
+        }
+
+        if (alive.length() > 0xff) {
+            alive = alive.substring(0, 0xff);
+        }
+
+        node = alive + "@" + host;
     }
 
     /**
      * Get the name of this node.
-     * 
+     *
      * @return the name of the node represented by this object.
      */
     public String node() {
-	return node;
+        return node;
     }
 
     /**
      * Get the hostname part of the nodename. Nodenames are composed of two
      * parts, an alivename and a hostname, separated by '@'. This method returns
      * the part of the nodename following the '@'.
-     * 
+     *
      * @return the hostname component of the nodename.
      */
     public String host() {
-	return host;
+        return host;
     }
 
     /**
      * Get the alivename part of the hostname. Nodenames are composed of two
      * parts, an alivename and a hostname, separated by '@'. This method returns
      * the part of the nodename preceding the '@'.
-     * 
+     *
      * @return the alivename component of the nodename.
      */
     public String alive() {
-	return alive;
+        return alive;
     }
 
     /**
      * Get the authorization cookie used by this node.
-     * 
+     *
      * @return the authorization cookie used by this node.
      */
     public String cookie() {
-	return cookie;
+        return cookie;
     }
 
     // package scope
     int type() {
-	return ntype;
+        return ntype;
     }
 
     // package scope
     int distHigh() {
-	return distHigh;
+        return distHigh;
     }
 
     // package scope
     int distLow() {
-	return distLow;
+        return distLow;
     }
 
     // package scope: useless information?
     int proto() {
-	return proto;
+        return proto;
     }
 
     // package scope
     int creation() {
-	return creation;
+        return creation;
     }
 
     /**
      * Set the authorization cookie used by this node.
-     * 
+     *
      * @return the previous authorization cookie used by this node.
      */
     public String setCookie(final String cookie) {
-	final String prev = this.cookie;
-	this.cookie = cookie;
-	return prev;
+        final String prev = this.cookie;
+        this.cookie = cookie;
+        return prev;
     }
 
     @Override
     public String toString() {
-	return node();
+        return node();
     }
 
     private static String getHomeDir() {
-	final String home = System.getProperty("user.home");
-	if (System.getProperty("os.name").toLowerCase().contains("windows")) {
-	    final String drive = System.getenv("HOMEDRIVE");
-	    final String path = System.getenv("HOMEPATH");
-	    return (drive != null && path != null) ? drive + path : home;
-	}
-    return home;
+        final String home = System.getProperty("user.home");
+        if (System.getProperty("os.name").toLowerCase().contains("windows")) {
+            final String drive = System.getenv("HOMEDRIVE");
+            final String path = System.getenv("HOMEPATH");
+            return drive != null && path != null ? drive + path : home;
+        }
+        return home;
+    }
+
+    public OtpTransport createTransport(final String addr, final int port)
+            throws IOException {
+        return transportFactory.createTransport(addr, port);
+    }
+
+    public OtpTransport createTransport(final InetAddress addr, final int port)
+            throws IOException {
+        return transportFactory.createTransport(addr, port);
+    }
+
+    public OtpServerTransport createServerTransport(final int port)
+            throws IOException {
+        return transportFactory.createServerTransport(port);
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/GenericQueue.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/GenericQueue.java
index 80bb02f16c..8a66190e6f 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/GenericQueue.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/GenericQueue.java
@@ -1,19 +1,19 @@
-/* 
+/*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -34,128 +34,128 @@ public class GenericQueue {
     private int count;
 
     private void init() {
-	head = null;
-	tail = null;
-	count = 0;
+        head = null;
+        tail = null;
+        count = 0;
     }
 
     /** Create an empty queue */
     public GenericQueue() {
-	init();
-	status = open;
+        init();
+        status = open;
     }
 
     /** Clear a queue */
     public void flush() {
-	init();
+        init();
     }
 
     public void close() {
-	status = closing;
+        status = closing;
     }
 
     /**
      * Add an object to the tail of the queue.
-     * 
+     *
      * @param o
-     *                Object to insert in the queue
+     *            Object to insert in the queue
      */
     public synchronized void put(final Object o) {
-	final Bucket b = new Bucket(o);
-
-	if (tail != null) {
-	    tail.setNext(b);
-	    tail = b;
-	} else {
-	    // queue was empty but has one element now
-	    head = tail = b;
-	}
-	count++;
-
-	// notify any waiting tasks
-	notify();
+        final Bucket b = new Bucket(o);
+
+        if (tail != null) {
+            tail.setNext(b);
+            tail = b;
+        } else {
+            // queue was empty but has one element now
+            head = tail = b;
+        }
+        count++;
+
+        // notify any waiting tasks
+        notify();
     }
 
     /**
      * Retrieve an object from the head of the queue, or block until one
      * arrives.
-     * 
+     *
      * @return The object at the head of the queue.
      */
     public synchronized Object get() {
-	Object o = null;
-
-	while ((o = tryGet()) == null) {
-	    try {
-		this.wait();
-	    } catch (final InterruptedException e) {
-	    }
-	}
-	return o;
+        Object o = null;
+
+        while ((o = tryGet()) == null) {
+            try {
+                this.wait();
+            } catch (final InterruptedException e) {
+            }
+        }
+        return o;
     }
 
     /**
      * Retrieve an object from the head of the queue, blocking until one arrives
      * or until timeout occurs.
-     * 
+     *
      * @param timeout
-     *                Maximum time to block on queue, in ms. Use 0 to poll the
-     *                queue.
-     * 
+     *            Maximum time to block on queue, in ms. Use 0 to poll the
+     *            queue.
+     *
      * @exception InterruptedException
-     *                    if the operation times out.
-     * 
+     *                if the operation times out.
+     *
      * @return The object at the head of the queue, or null if none arrived in
      *         time.
      */
     public synchronized Object get(final long timeout)
-	    throws InterruptedException {
-	if (status == closed) {
-	    return null;
-	}
-
-	long currentTime = System.currentTimeMillis();
-	final long stopTime = currentTime + timeout;
-	Object o = null;
-
-	while (true) {
-	    if ((o = tryGet()) != null) {
-		return o;
-	    }
-
-	    currentTime = System.currentTimeMillis();
-	    if (stopTime <= currentTime) {
-		throw new InterruptedException("Get operation timed out");
-	    }
-
-	    try {
-		this.wait(stopTime - currentTime);
-	    } catch (final InterruptedException e) {
-		// ignore, but really should retry operation instead
-	    }
-	}
+            throws InterruptedException {
+        if (status == closed) {
+            return null;
+        }
+
+        long currentTime = System.currentTimeMillis();
+        final long stopTime = currentTime + timeout;
+        Object o = null;
+
+        while (true) {
+            if ((o = tryGet()) != null) {
+                return o;
+            }
+
+            currentTime = System.currentTimeMillis();
+            if (stopTime <= currentTime) {
+                throw new InterruptedException("Get operation timed out");
+            }
+
+            try {
+                this.wait(stopTime - currentTime);
+            } catch (final InterruptedException e) {
+                // ignore, but really should retry operation instead
+            }
+        }
     }
 
     // attempt to retrieve message from queue head
     public Object tryGet() {
-	Object o = null;
+        Object o = null;
 
-	if (head != null) {
-	    o = head.getContents();
-	    head = head.getNext();
-	    count--;
+        if (head != null) {
+            o = head.getContents();
+            head = head.getNext();
+            count--;
 
-	    if (head == null) {
-		tail = null;
-		count = 0;
-	    }
-	}
+            if (head == null) {
+                tail = null;
+                count = 0;
+            }
+        }
 
-	return o;
+        return o;
     }
 
     public synchronized int getCount() {
-	return count;
+        return count;
     }
 
     /*
@@ -163,24 +163,24 @@ public class GenericQueue {
      * The container holds the queued object and a reference to the next Bucket.
      */
     class Bucket {
-	private Bucket next;
-	private final Object contents;
+        private Bucket next;
+        private final Object contents;
 
-	public Bucket(final Object o) {
-	    next = null;
-	    contents = o;
-	}
+        public Bucket(final Object o) {
+            next = null;
+            contents = o;
+        }
 
-	public void setNext(final Bucket newNext) {
-	    next = newNext;
-	}
+        public void setNext(final Bucket newNext) {
+            next = newNext;
+        }
 
-	public Bucket getNext() {
-	    return next;
-	}
+        public Bucket getNext() {
+            return next;
+        }
 
-	public Object getContents() {
-	    return contents;
-	}
+        public Object getContents() {
+            return contents;
+        }
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/Link.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/Link.java
index c8b4fcebde..33ba94e53f 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/Link.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/Link.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -25,34 +25,34 @@ class Link {
     private int hashCodeValue = 0;
 
     public Link(final OtpErlangPid local, final OtpErlangPid remote) {
-	this.local = local;
-	this.remote = remote;
+        this.local = local;
+        this.remote = remote;
     }
 
     public OtpErlangPid local() {
-	return local;
+        return local;
     }
 
     public OtpErlangPid remote() {
-	return remote;
+        return remote;
     }
 
     public boolean contains(final OtpErlangPid pid) {
-	return local.equals(pid) || remote.equals(pid);
+        return local.equals(pid) || remote.equals(pid);
     }
 
     public boolean equals(final OtpErlangPid alocal, final OtpErlangPid aremote) {
-    return local.equals(alocal) && remote.equals(aremote)
-        || local.equals(aremote) && remote.equals(alocal);
+        return local.equals(alocal) && remote.equals(aremote)
+                || local.equals(aremote) && remote.equals(alocal);
     }
-    
+
     @Override
     public int hashCode() {
-	if (hashCodeValue == 0) {
-	    OtpErlangObject.Hash hash = new OtpErlangObject.Hash(5);
-	    hash.combine(local.hashCode() + remote.hashCode());
-	    hashCodeValue = hash.valueOf();
-	}
-	return hashCodeValue;
+        if (hashCodeValue == 0) {
+            final OtpErlangObject.Hash hash = new OtpErlangObject.Hash(5);
+            hash.combine(local.hashCode() + remote.hashCode());
+            hashCodeValue = hash.valueOf();
+        }
+        return hashCodeValue;
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/Links.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/Links.java
index 0bb4a708a3..38517860ed 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/Links.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/Links.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -24,100 +24,100 @@ class Links {
     int count;
 
     Links() {
-	this(10);
+        this(10);
     }
 
     Links(final int initialSize) {
-	links = new Link[initialSize];
-	count = 0;
+        links = new Link[initialSize];
+        count = 0;
     }
 
     synchronized void addLink(final OtpErlangPid local,
-	    final OtpErlangPid remote) {
-	if (find(local, remote) == -1) {
-	    if (count >= links.length) {
-		final Link[] tmp = new Link[count * 2];
-		System.arraycopy(links, 0, tmp, 0, count);
-		links = tmp;
-	    }
-	    links[count++] = new Link(local, remote);
-	}
+            final OtpErlangPid remote) {
+        if (find(local, remote) == -1) {
+            if (count >= links.length) {
+                final Link[] tmp = new Link[count * 2];
+                System.arraycopy(links, 0, tmp, 0, count);
+                links = tmp;
+            }
+            links[count++] = new Link(local, remote);
+        }
     }
 
     synchronized void removeLink(final OtpErlangPid local,
-	    final OtpErlangPid remote) {
-	int i;
+            final OtpErlangPid remote) {
+        int i;
 
-	if ((i = find(local, remote)) != -1) {
-	    count--;
-	    links[i] = links[count];
-	    links[count] = null;
-	}
+        if ((i = find(local, remote)) != -1) {
+            count--;
+            links[i] = links[count];
+            links[count] = null;
+        }
     }
 
     synchronized boolean exists(final OtpErlangPid local,
-	    final OtpErlangPid remote) {
-	return find(local, remote) != -1;
+            final OtpErlangPid remote) {
+        return find(local, remote) != -1;
     }
 
     synchronized int find(final OtpErlangPid local, final OtpErlangPid remote) {
-	for (int i = 0; i < count; i++) {
-	    if (links[i].equals(local, remote)) {
-		return i;
-	    }
-	}
-	return -1;
+        for (int i = 0; i < count; i++) {
+            if (links[i].equals(local, remote)) {
+                return i;
+            }
+        }
+        return -1;
     }
 
     int count() {
-	return count;
+        return count;
     }
 
     /* all local pids get notified about broken connection */
     synchronized OtpErlangPid[] localPids() {
-	OtpErlangPid[] ret = null;
-	if (count != 0) {
-	    ret = new OtpErlangPid[count];
-	    for (int i = 0; i < count; i++) {
-		ret[i] = links[i].local();
-	    }
-	}
-	return ret;
+        OtpErlangPid[] ret = null;
+        if (count != 0) {
+            ret = new OtpErlangPid[count];
+            for (int i = 0; i < count; i++) {
+                ret[i] = links[i].local();
+            }
+        }
+        return ret;
     }
 
     /* all remote pids get notified about failed pid */
     synchronized OtpErlangPid[] remotePids() {
-	OtpErlangPid[] ret = null;
-	if (count != 0) {
-	    ret = new OtpErlangPid[count];
-	    for (int i = 0; i < count; i++) {
-		ret[i] = links[i].remote();
-	    }
-	}
-	return ret;
+        OtpErlangPid[] ret = null;
+        if (count != 0) {
+            ret = new OtpErlangPid[count];
+            for (int i = 0; i < count; i++) {
+                ret[i] = links[i].remote();
+            }
+        }
+        return ret;
     }
 
     /* clears the link table, returns a copy */
     synchronized Link[] clearLinks() {
-	Link[] ret = null;
-	if (count != 0) {
-	    ret = new Link[count];
-	    for (int i = 0; i < count; i++) {
-		ret[i] = links[i];
-		links[i] = null;
-	    }
-	    count = 0;
-	}
-	return ret;
+        Link[] ret = null;
+        if (count != 0) {
+            ret = new Link[count];
+            for (int i = 0; i < count; i++) {
+                ret[i] = links[i];
+                links[i] = null;
+            }
+            count = 0;
+        }
+        return ret;
     }
 
     /* returns a copy of the link table */
     synchronized Link[] links() {
-	Link[] ret = null;
-	if (count != 0) {
-	    ret = new Link[count];
-	    System.arraycopy(links, 0, ret, 0, count);
-	}
-	return ret;
+        Link[] ret = null;
+        if (count != 0) {
+            ret = new Link[count];
+            System.arraycopy(links, 0, ret, 0, count);
+        }
+        return ret;
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpAuthException.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpAuthException.java
index 39d254d9fa..47646121c3 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpAuthException.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpAuthException.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -22,7 +22,7 @@ package com.ericsson.otp.erlang;
  * Exception raised when a node attempts to establish a communication channel
  * when it is not authorized to do so, or when a node sends a message containing
  * an invalid cookie on an established channel.
- * 
+ *
  * @see OtpConnection
  */
 public class OtpAuthException extends OtpException {
@@ -32,6 +32,6 @@ public class OtpAuthException extends OtpException {
      * Provides a detailed message.
      */
     public OtpAuthException(final String s) {
-	super(s);
+        super(s);
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpConnection.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpConnection.java
index 9ad02506fd..af0926f939 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpConnection.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpConnection.java
@@ -1,46 +1,45 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
 import java.io.IOException;
-import java.net.Socket;
 
 /**
  * Maintains a connection between a Java process and a remote Erlang, Java or C
  * node. The object maintains connection state and allows data to be sent to and
  * received from the peer.
- * 
+ *
  * <p>
  * Once a connection is established between the local node and a remote node,
  * the connection object can be used to send and receive messages between the
  * nodes and make rpc calls (assuming that the remote node is a real Erlang
  * node).
- * 
+ *
  * <p>
  * The various receive methods are all blocking and will return only when a
  * valid message has been received or an exception is raised.
- * 
+ *
  * <p>
  * If an exception occurs in any of the methods in this class, the connection
  * will be closed and must be explicitely reopened in order to resume
  * communication with the peer.
- * 
+ *
  * <p>
  * It is not possible to create an instance of this class directly.
  * OtpConnection objects are returned by {@link OtpSelf#connect(OtpPeer)
@@ -55,66 +54,66 @@ public class OtpConnection extends AbstractConnection {
      * OtpSelf#accept() OtpSelf.accept()} to create a connection based on data
      * received when handshaking with the peer node, when the remote node is the
      * connection intitiator.
-     * 
+     *
      * @exception java.io.IOException if it was not possible to connect to the
      * peer.
-     * 
+     *
      * @exception OtpAuthException if handshake resulted in an authentication
      * error
      */
     // package scope
-    OtpConnection(final OtpSelf self, final Socket s) throws IOException,
-	    OtpAuthException {
-	super(self, s);
-	this.self = self;
-	queue = new GenericQueue();
-	start();
+    OtpConnection(final OtpSelf self, final OtpTransport s)
+            throws IOException, OtpAuthException {
+        super(self, s);
+        this.self = self;
+        queue = new GenericQueue();
+        start();
     }
 
     /*
      * Intiate and open a connection to a remote node.
-     * 
+     *
      * @exception java.io.IOException if it was not possible to connect to the
      * peer.
-     * 
+     *
      * @exception OtpAuthException if handshake resulted in an authentication
      * error.
      */
     // package scope
     OtpConnection(final OtpSelf self, final OtpPeer other) throws IOException,
-	    OtpAuthException {
-	super(self, other);
-	this.self = self;
-	queue = new GenericQueue();
-	start();
+            OtpAuthException {
+        super(self, other);
+        this.self = self;
+        queue = new GenericQueue();
+        start();
     }
 
     @Override
     public void deliver(final Exception e) {
-	queue.put(e);
+        queue.put(e);
     }
 
     @Override
     public void deliver(final OtpMsg msg) {
-	queue.put(msg);
+        queue.put(msg);
     }
 
     /**
      * Get information about the node at the peer end of this connection.
-     * 
+     *
      * @return the {@link OtpPeer Node} representing the peer node.
      */
     public OtpPeer peer() {
-	return peer;
+        return peer;
     }
 
     /**
      * Get information about the node at the local end of this connection.
-     * 
+     *
      * @return the {@link OtpSelf Node} representing the local node.
      */
     public OtpSelf self() {
-	return self;
+        return self;
     }
 
     /**
@@ -122,416 +121,412 @@ public class OtpConnection extends AbstractConnection {
      * this connection.
      */
     public int msgCount() {
-	return queue.getCount();
+        return queue.getCount();
     }
 
     /**
      * Receive a message from a remote process. This method blocks until a valid
      * message is received or an exception is raised.
-     * 
+     *
      * <p>
      * If the remote node sends a message that cannot be decoded properly, the
      * connection is closed and the method throws an exception.
-     * 
+     *
      * @return an object containing a single Erlang term.
-     * 
+     *
      * @exception java.io.IOException
-     *                    if the connection is not active or a communication
-     *                    error occurs.
-     * 
+     *                if the connection is not active or a communication error
+     *                occurs.
+     *
      * @exception OtpErlangExit
-     *                    if an exit signal is received from a process on the
-     *                    peer node.
-     * 
+     *                if an exit signal is received from a process on the peer
+     *                node.
+     *
      * @exception OtpAuthException
-     *                    if the remote node sends a message containing an
-     *                    invalid cookie.
+     *                if the remote node sends a message containing an invalid
+     *                cookie.
      */
     public OtpErlangObject receive() throws IOException, OtpErlangExit,
-	    OtpAuthException {
-	try {
-	    return receiveMsg().getMsg();
-	} catch (final OtpErlangDecodeException e) {
-	    close();
-	    throw new IOException(e.getMessage());
-	}
+            OtpAuthException {
+        try {
+            return receiveMsg().getMsg();
+        } catch (final OtpErlangDecodeException e) {
+            close();
+            throw new IOException(e.getMessage());
+        }
     }
 
     /**
      * Receive a message from a remote process. This method blocks at most for
      * the specified time, until a valid message is received or an exception is
      * raised.
-     * 
+     *
      * <p>
      * If the remote node sends a message that cannot be decoded properly, the
      * connection is closed and the method throws an exception.
-     * 
+     *
      * @param timeout
-     *                the time in milliseconds that this operation will block.
-     *                Specify 0 to poll the queue.
-     * 
+     *            the time in milliseconds that this operation will block.
+     *            Specify 0 to poll the queue.
+     *
      * @return an object containing a single Erlang term.
-     * 
+     *
      * @exception java.io.IOException
-     *                    if the connection is not active or a communication
-     *                    error occurs.
-     * 
+     *                if the connection is not active or a communication error
+     *                occurs.
+     *
      * @exception OtpErlangExit
-     *                    if an exit signal is received from a process on the
-     *                    peer node.
-     * 
+     *                if an exit signal is received from a process on the peer
+     *                node.
+     *
      * @exception OtpAuthException
-     *                    if the remote node sends a message containing an
-     *                    invalid cookie.
-     * 
+     *                if the remote node sends a message containing an invalid
+     *                cookie.
+     *
      * @exception InterruptedException
-     *                    if no message if the method times out before a message
-     *                    becomes available.
+     *                if no message if the method times out before a message
+     *                becomes available.
      */
     public OtpErlangObject receive(final long timeout)
-	    throws InterruptedException, IOException, OtpErlangExit,
-	    OtpAuthException {
-	try {
-	    return receiveMsg(timeout).getMsg();
-	} catch (final OtpErlangDecodeException e) {
-	    close();
-	    throw new IOException(e.getMessage());
-	}
+            throws InterruptedException, IOException, OtpErlangExit,
+            OtpAuthException {
+        try {
+            return receiveMsg(timeout).getMsg();
+        } catch (final OtpErlangDecodeException e) {
+            close();
+            throw new IOException(e.getMessage());
+        }
     }
 
     /**
      * Receive a raw (still encoded) message from a remote process. This message
      * blocks until a valid message is received or an exception is raised.
-     * 
+     *
      * <p>
      * If the remote node sends a message that cannot be decoded properly, the
      * connection is closed and the method throws an exception.
-     * 
+     *
      * @return an object containing a raw (still encoded) Erlang term.
-     * 
+     *
      * @exception java.io.IOException
-     *                    if the connection is not active or a communication
-     *                    error occurs.
-     * 
+     *                if the connection is not active or a communication error
+     *                occurs.
+     *
      * @exception OtpErlangExit
-     *                    if an exit signal is received from a process on the
-     *                    peer node, or if the connection is lost for any
-     *                    reason.
-     * 
+     *                if an exit signal is received from a process on the peer
+     *                node, or if the connection is lost for any reason.
+     *
      * @exception OtpAuthException
-     *                    if the remote node sends a message containing an
-     *                    invalid cookie.
+     *                if the remote node sends a message containing an invalid
+     *                cookie.
      */
     public OtpInputStream receiveBuf() throws IOException, OtpErlangExit,
-	    OtpAuthException {
-	return receiveMsg().getMsgBuf();
+            OtpAuthException {
+        return receiveMsg().getMsgBuf();
     }
 
     /**
      * Receive a raw (still encoded) message from a remote process. This message
      * blocks at most for the specified time until a valid message is received
      * or an exception is raised.
-     * 
+     *
      * <p>
      * If the remote node sends a message that cannot be decoded properly, the
      * connection is closed and the method throws an exception.
-     * 
+     *
      * @param timeout
-     *                the time in milliseconds that this operation will block.
-     *                Specify 0 to poll the queue.
-     * 
+     *            the time in milliseconds that this operation will block.
+     *            Specify 0 to poll the queue.
+     *
      * @return an object containing a raw (still encoded) Erlang term.
-     * 
+     *
      * @exception java.io.IOException
-     *                    if the connection is not active or a communication
-     *                    error occurs.
-     * 
+     *                if the connection is not active or a communication error
+     *                occurs.
+     *
      * @exception OtpErlangExit
-     *                    if an exit signal is received from a process on the
-     *                    peer node, or if the connection is lost for any
-     *                    reason.
-     * 
+     *                if an exit signal is received from a process on the peer
+     *                node, or if the connection is lost for any reason.
+     *
      * @exception OtpAuthException
-     *                    if the remote node sends a message containing an
-     *                    invalid cookie.
-     * 
+     *                if the remote node sends a message containing an invalid
+     *                cookie.
+     *
      * @exception InterruptedException
-     *                    if no message if the method times out before a message
-     *                    becomes available.
+     *                if no message if the method times out before a message
+     *                becomes available.
      */
     public OtpInputStream receiveBuf(final long timeout)
-	    throws InterruptedException, IOException, OtpErlangExit,
-	    OtpAuthException {
-	return receiveMsg(timeout).getMsgBuf();
+            throws InterruptedException, IOException, OtpErlangExit,
+            OtpAuthException {
+        return receiveMsg(timeout).getMsgBuf();
     }
 
     /**
      * Receive a messge complete with sender and recipient information.
-     * 
+     *
      * @return an {@link OtpMsg OtpMsg} containing the header information about
      *         the sender and recipient, as well as the actual message contents.
-     * 
+     *
      * @exception java.io.IOException
-     *                    if the connection is not active or a communication
-     *                    error occurs.
-     * 
+     *                if the connection is not active or a communication error
+     *                occurs.
+     *
      * @exception OtpErlangExit
-     *                    if an exit signal is received from a process on the
-     *                    peer node, or if the connection is lost for any
-     *                    reason.
-     * 
+     *                if an exit signal is received from a process on the peer
+     *                node, or if the connection is lost for any reason.
+     *
      * @exception OtpAuthException
-     *                    if the remote node sends a message containing an
-     *                    invalid cookie.
+     *                if the remote node sends a message containing an invalid
+     *                cookie.
      */
     public OtpMsg receiveMsg() throws IOException, OtpErlangExit,
-	    OtpAuthException {
-	final Object o = queue.get();
-
-	if (o instanceof OtpMsg) {
-	    return (OtpMsg) o;
-	} else if (o instanceof IOException) {
-	    throw (IOException) o;
-	} else if (o instanceof OtpErlangExit) {
-	    throw (OtpErlangExit) o;
-	} else if (o instanceof OtpAuthException) {
-	    throw (OtpAuthException) o;
-	}
-
-	return null;
+            OtpAuthException {
+        final Object o = queue.get();
+
+        if (o instanceof OtpMsg) {
+            return (OtpMsg) o;
+        } else if (o instanceof IOException) {
+            throw (IOException) o;
+        } else if (o instanceof OtpErlangExit) {
+            throw (OtpErlangExit) o;
+        } else if (o instanceof OtpAuthException) {
+            throw (OtpAuthException) o;
+        }
+
+        return null;
     }
 
     /**
      * Receive a messge complete with sender and recipient information. This
      * method blocks at most for the specified time.
-     * 
+     *
      * @param timeout
-     *                the time in milliseconds that this operation will block.
-     *                Specify 0 to poll the queue.
-     * 
+     *            the time in milliseconds that this operation will block.
+     *            Specify 0 to poll the queue.
+     *
      * @return an {@link OtpMsg OtpMsg} containing the header information about
      *         the sender and recipient, as well as the actual message contents.
-     * 
+     *
      * @exception java.io.IOException
-     *                    if the connection is not active or a communication
-     *                    error occurs.
-     * 
+     *                if the connection is not active or a communication error
+     *                occurs.
+     *
      * @exception OtpErlangExit
-     *                    if an exit signal is received from a process on the
-     *                    peer node, or if the connection is lost for any
-     *                    reason.
-     * 
+     *                if an exit signal is received from a process on the peer
+     *                node, or if the connection is lost for any reason.
+     *
      * @exception OtpAuthException
-     *                    if the remote node sends a message containing an
-     *                    invalid cookie.
-     * 
+     *                if the remote node sends a message containing an invalid
+     *                cookie.
+     *
      * @exception InterruptedException
-     *                    if no message if the method times out before a message
-     *                    becomes available.
+     *                if no message if the method times out before a message
+     *                becomes available.
      */
     public OtpMsg receiveMsg(final long timeout) throws InterruptedException,
-	    IOException, OtpErlangExit, OtpAuthException {
-	final Object o = queue.get(timeout);
-
-	if (o instanceof OtpMsg) {
-	    return (OtpMsg) o;
-	} else if (o instanceof IOException) {
-	    throw (IOException) o;
-	} else if (o instanceof OtpErlangExit) {
-	    throw (OtpErlangExit) o;
-	} else if (o instanceof OtpAuthException) {
-	    throw (OtpAuthException) o;
-	}
-
-	return null;
+            IOException, OtpErlangExit, OtpAuthException {
+        final Object o = queue.get(timeout);
+
+        if (o instanceof OtpMsg) {
+            return (OtpMsg) o;
+        } else if (o instanceof IOException) {
+            throw (IOException) o;
+        } else if (o instanceof OtpErlangExit) {
+            throw (OtpErlangExit) o;
+        } else if (o instanceof OtpAuthException) {
+            throw (OtpAuthException) o;
+        }
+
+        return null;
     }
 
     /**
      * Send a message to a process on a remote node.
-     * 
+     *
      * @param dest
-     *                the Erlang PID of the remote process.
+     *            the Erlang PID of the remote process.
      * @param msg
-     *                the message to send.
-     * 
+     *            the message to send.
+     *
      * @exception java.io.IOException
-     *                    if the connection is not active or a communication
-     *                    error occurs.
+     *                if the connection is not active or a communication error
+     *                occurs.
      */
     @SuppressWarnings("resource")
     public void send(final OtpErlangPid dest, final OtpErlangObject msg)
-	    throws IOException {
-	// encode and send the message
-	super.sendBuf(self.pid(), dest, new OtpOutputStream(msg));
+            throws IOException {
+        // encode and send the message
+        super.sendBuf(self.pid(), dest, new OtpOutputStream(msg));
     }
 
     /**
      * Send a message to a named process on a remote node.
-     * 
+     *
      * @param dest
-     *                the name of the remote process.
+     *            the name of the remote process.
      * @param msg
-     *                the message to send.
-     * 
+     *            the message to send.
+     *
      * @exception java.io.IOException
-     *                    if the connection is not active or a communication
-     *                    error occurs.
+     *                if the connection is not active or a communication error
+     *                occurs.
      */
     @SuppressWarnings("resource")
     public void send(final String dest, final OtpErlangObject msg)
-	    throws IOException {
-	// encode and send the message
-	super.sendBuf(self.pid(), dest, new OtpOutputStream(msg));
+            throws IOException {
+        // encode and send the message
+        super.sendBuf(self.pid(), dest, new OtpOutputStream(msg));
     }
 
     /**
      * Send a pre-encoded message to a named process on a remote node.
-     * 
+     *
      * @param dest
-     *                the name of the remote process.
+     *            the name of the remote process.
      * @param payload
-     *                the encoded message to send.
-     * 
+     *            the encoded message to send.
+     *
      * @exception java.io.IOException
-     *                    if the connection is not active or a communication
-     *                    error occurs.
+     *                if the connection is not active or a communication error
+     *                occurs.
      */
     public void sendBuf(final String dest, final OtpOutputStream payload)
-	    throws IOException {
-	super.sendBuf(self.pid(), dest, payload);
+            throws IOException {
+        super.sendBuf(self.pid(), dest, payload);
     }
 
     /**
      * Send a pre-encoded message to a process on a remote node.
-     * 
+     *
      * @param dest
-     *                the Erlang PID of the remote process.
+     *            the Erlang PID of the remote process.
      * @param payload
-     *                the encoded message to send.
-     * 
+     *            the encoded message to send.
+     *
      * @exception java.io.IOException
-     *                    if the connection is not active or a communication
-     *                    error occurs.
+     *                if the connection is not active or a communication error
+     *                occurs.
      */
     public void sendBuf(final OtpErlangPid dest, final OtpOutputStream payload)
-	    throws IOException {
-	super.sendBuf(self.pid(), dest, payload);
+            throws IOException {
+        super.sendBuf(self.pid(), dest, payload);
     }
 
     /**
      * Send an RPC request to the remote Erlang node. This convenience function
      * creates the following message and sends it to 'rex' on the remote node:
-     * 
+     *
      * <pre>
      * { self, { call, Mod, Fun, Args, user } }
      * </pre>
-     * 
+     *
      * <p>
      * Note that this method has unpredicatble results if the remote node is not
      * an Erlang node.
      * </p>
-     * 
+     *
      * @param mod
-     *                the name of the Erlang module containing the function to
-     *                be called.
+     *            the name of the Erlang module containing the function to be
+     *            called.
      * @param fun
-     *                the name of the function to call.
+     *            the name of the function to call.
      * @param args
-     *                an array of Erlang terms, to be used as arguments to the
-     *                function.
-     * 
+     *            an array of Erlang terms, to be used as arguments to the
+     *            function.
+     *
      * @exception java.io.IOException
-     *                    if the connection is not active or a communication
-     *                    error occurs.
+     *                if the connection is not active or a communication error
+     *                occurs.
      */
     public void sendRPC(final String mod, final String fun,
-	    final OtpErlangObject[] args) throws IOException {
-	sendRPC(mod, fun, new OtpErlangList(args));
+            final OtpErlangObject[] args) throws IOException {
+        sendRPC(mod, fun, new OtpErlangList(args));
     }
 
     /**
      * Send an RPC request to the remote Erlang node. This convenience function
      * creates the following message and sends it to 'rex' on the remote node:
-     * 
+     *
      * <pre>
      * { self, { call, Mod, Fun, Args, user } }
      * </pre>
-     * 
+     *
      * <p>
      * Note that this method has unpredicatble results if the remote node is not
      * an Erlang node.
      * </p>
-     * 
+     *
      * @param mod
-     *                the name of the Erlang module containing the function to
-     *                be called.
+     *            the name of the Erlang module containing the function to be
+     *            called.
      * @param fun
-     *                the name of the function to call.
+     *            the name of the function to call.
      * @param args
-     *                a list of Erlang terms, to be used as arguments to the
-     *                function.
-     * 
+     *            a list of Erlang terms, to be used as arguments to the
+     *            function.
+     *
      * @exception java.io.IOException
-     *                    if the connection is not active or a communication
-     *                    error occurs.
+     *                if the connection is not active or a communication error
+     *                occurs.
      */
     public void sendRPC(final String mod, final String fun,
-	    final OtpErlangList args) throws IOException {
-	final OtpErlangObject[] rpc = new OtpErlangObject[2];
-	final OtpErlangObject[] call = new OtpErlangObject[5];
+            final OtpErlangList args) throws IOException {
+        final OtpErlangObject[] rpc = new OtpErlangObject[2];
+        final OtpErlangObject[] call = new OtpErlangObject[5];
 
-	/* {self, { call, Mod, Fun, Args, user}} */
+        /* {self, { call, Mod, Fun, Args, user}} */
 
-	call[0] = new OtpErlangAtom("call");
-	call[1] = new OtpErlangAtom(mod);
-	call[2] = new OtpErlangAtom(fun);
-	call[3] = args;
-	call[4] = new OtpErlangAtom("user");
+        call[0] = new OtpErlangAtom("call");
+        call[1] = new OtpErlangAtom(mod);
+        call[2] = new OtpErlangAtom(fun);
+        call[3] = args;
+        call[4] = new OtpErlangAtom("user");
 
-	rpc[0] = self.pid();
-	rpc[1] = new OtpErlangTuple(call);
+        rpc[0] = self.pid();
+        rpc[1] = new OtpErlangTuple(call);
 
-	send("rex", new OtpErlangTuple(rpc));
+        send("rex", new OtpErlangTuple(rpc));
     }
 
     /**
      * Receive an RPC reply from the remote Erlang node. This convenience
      * function receives a message from the remote node, and expects it to have
      * the following format:
-     * 
+     *
      * <pre>
      * { rex, Term }
      * </pre>
-     * 
+     *
      * @return the second element of the tuple if the received message is a
      *         two-tuple, otherwise null. No further error checking is
      *         performed.
-     * 
+     *
      * @exception java.io.IOException
-     *                    if the connection is not active or a communication
-     *                    error occurs.
-     * 
+     *                if the connection is not active or a communication error
+     *                occurs.
+     *
      * @exception OtpErlangExit
-     *                    if an exit signal is received from a process on the
-     *                    peer node.
-     * 
+     *                if an exit signal is received from a process on the peer
+     *                node.
+     *
      * @exception OtpAuthException
-     *                    if the remote node sends a message containing an
-     *                    invalid cookie.
+     *                if the remote node sends a message containing an invalid
+     *                cookie.
      */
     public OtpErlangObject receiveRPC() throws IOException, OtpErlangExit,
-	    OtpAuthException {
+            OtpAuthException {
 
-	final OtpErlangObject msg = receive();
+        final OtpErlangObject msg = receive();
 
-	if (msg instanceof OtpErlangTuple) {
-	    final OtpErlangTuple t = (OtpErlangTuple) msg;
-	    if (t.arity() == 2) {
-		return t.elementAt(1); // obs: second element
-	    }
-	}
+        if (msg instanceof OtpErlangTuple) {
+            final OtpErlangTuple t = (OtpErlangTuple) msg;
+            if (t.arity() == 2) {
+                return t.elementAt(1); // obs: second element
+            }
+        }
 
-	return null;
+        return null;
     }
 
     /**
@@ -539,48 +534,48 @@ public class OtpConnection extends AbstractConnection {
      * remote node. If the link is still active when the remote process
      * terminates, an exit signal will be sent to this connection. Use
      * {@link #unlink unlink()} to remove the link.
-     * 
+     *
      * @param dest
-     *                the Erlang PID of the remote process.
-     * 
+     *            the Erlang PID of the remote process.
+     *
      * @exception java.io.IOException
-     *                    if the connection is not active or a communication
-     *                    error occurs.
+     *                if the connection is not active or a communication error
+     *                occurs.
      */
     public void link(final OtpErlangPid dest) throws IOException {
-	super.sendLink(self.pid(), dest);
+        super.sendLink(self.pid(), dest);
     }
 
     /**
      * Remove a link between the local node and the specified process on the
-     * remote node. This method deactivates links created with
-     * {@link #link link()}.
-     * 
+     * remote node. This method deactivates links created with {@link #link
+     * link()}.
+     *
      * @param dest
-     *                the Erlang PID of the remote process.
-     * 
+     *            the Erlang PID of the remote process.
+     *
      * @exception java.io.IOException
-     *                    if the connection is not active or a communication
-     *                    error occurs.
+     *                if the connection is not active or a communication error
+     *                occurs.
      */
     public void unlink(final OtpErlangPid dest) throws IOException {
-	super.sendUnlink(self.pid(), dest);
+        super.sendUnlink(self.pid(), dest);
     }
 
     /**
      * Send an exit signal to a remote process.
-     * 
+     *
      * @param dest
-     *                the Erlang PID of the remote process.
+     *            the Erlang PID of the remote process.
      * @param reason
-     *                an Erlang term describing the exit reason.
-     * 
+     *            an Erlang term describing the exit reason.
+     *
      * @exception java.io.IOException
-     *                    if the connection is not active or a communication
-     *                    error occurs.
+     *                if the connection is not active or a communication error
+     *                occurs.
      */
     public void exit(final OtpErlangPid dest, final OtpErlangObject reason)
-	    throws IOException {
-	super.sendExit2(self.pid(), dest, reason);
+            throws IOException {
+        super.sendExit2(self.pid(), dest, reason);
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpCookedConnection.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpCookedConnection.java
index 43b0cad222..b0e3e81fca 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpCookedConnection.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpCookedConnection.java
@@ -1,25 +1,24 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
 import java.io.IOException;
-import java.net.Socket;
 
 /**
  * <p>
@@ -27,29 +26,29 @@ import java.net.Socket;
  * node. The object maintains connection state and allows data to be sent to and
  * received from the peer.
  * </p>
- * 
+ *
  * <p>
  * Once a connection is established between the local node and a remote node,
  * the connection object can be used to send and receive messages between the
  * nodes.
  * </p>
- * 
+ *
  * <p>
  * The various receive methods are all blocking and will return only when a
  * valid message has been received or an exception is raised.
  * </p>
- * 
+ *
  * <p>
  * If an exception occurs in any of the methods in this class, the connection
  * will be closed and must be reopened in order to resume communication with the
  * peer.
  * </p>
- * 
+ *
  * <p>
  * The message delivery methods in this class deliver directly to
  * {@link OtpMbox mailboxes} in the {@link OtpNode OtpNode} class.
  * </p>
- * 
+ *
  * <p>
  * It is not possible to create an instance of this class directly.
  * OtpCookedConnection objects are created as needed by the underlying mailbox
@@ -70,45 +69,45 @@ public class OtpCookedConnection extends AbstractConnection {
      * OtpSelf#accept() OtpSelf.accept()} to create a connection based on data
      * received when handshaking with the peer node, when the remote node is the
      * connection intitiator.
-     * 
+     *
      * @exception java.io.IOException if it was not possible to connect to the
      * peer.
-     * 
+     *
      * @exception OtpAuthException if handshake resulted in an authentication
      * error
      */
     // package scope
-    OtpCookedConnection(final OtpNode self, final Socket s) throws IOException,
-	    OtpAuthException {
-	super(self, s);
-	this.self = self;
-	links = new Links(25);
-	start();
+    OtpCookedConnection(final OtpNode self, final OtpTransport s)
+            throws IOException, OtpAuthException {
+        super(self, s);
+        this.self = self;
+        links = new Links(25);
+        start();
     }
 
     /*
      * Intiate and open a connection to a remote node.
-     * 
+     *
      * @exception java.io.IOException if it was not possible to connect to the
      * peer.
-     * 
+     *
      * @exception OtpAuthException if handshake resulted in an authentication
      * error.
      */
     // package scope
     OtpCookedConnection(final OtpNode self, final OtpPeer other)
-	    throws IOException, OtpAuthException {
-	super(self, other);
-	this.self = self;
-	links = new Links(25);
-	start();
+            throws IOException, OtpAuthException {
+        super(self, other);
+        this.self = self;
+        links = new Links(25);
+        start();
     }
 
     // pass the error to the node
     @Override
     public void deliver(final Exception e) {
-	self.deliverError(this, e);
-	return;
+        self.deliverError(this, e);
+        return;
     }
 
     /*
@@ -118,32 +117,32 @@ public class OtpCookedConnection extends AbstractConnection {
      */
     @Override
     public void deliver(final OtpMsg msg) {
-	final boolean delivered = self.deliver(msg);
-
-	switch (msg.type()) {
-	case OtpMsg.linkTag:
-	    if (delivered) {
-		links.addLink(msg.getRecipientPid(), msg.getSenderPid());
-	    } else {
-		try {
-		    // no such pid - send exit to sender
-		    super.sendExit(msg.getRecipientPid(), msg.getSenderPid(),
-			    new OtpErlangAtom("noproc"));
-		} catch (final IOException e) {
-		}
-	    }
-	    break;
-
-	case OtpMsg.unlinkTag:
-	case OtpMsg.exitTag:
-	    links.removeLink(msg.getRecipientPid(), msg.getSenderPid());
-	    break;
-
-	case OtpMsg.exit2Tag:
-	    break;
-	}
-
-	return;
+        final boolean delivered = self.deliver(msg);
+
+        switch (msg.type()) {
+        case OtpMsg.linkTag:
+            if (delivered) {
+                links.addLink(msg.getRecipientPid(), msg.getSenderPid());
+            } else {
+                try {
+                    // no such pid - send exit to sender
+                    super.sendExit(msg.getRecipientPid(), msg.getSenderPid(),
+                            new OtpErlangAtom("noproc"));
+                } catch (final IOException e) {
+                }
+            }
+            break;
+
+        case OtpMsg.unlinkTag:
+        case OtpMsg.exitTag:
+            links.removeLink(msg.getRecipientPid(), msg.getSenderPid());
+            break;
+
+        case OtpMsg.exit2Tag:
+            break;
+        }
+
+        return;
     }
 
     /*
@@ -151,9 +150,9 @@ public class OtpCookedConnection extends AbstractConnection {
      */
     @SuppressWarnings("resource")
     void send(final OtpErlangPid from, final OtpErlangPid dest,
-	    final OtpErlangObject msg) throws IOException {
-	// encode and send the message
-	sendBuf(from, dest, new OtpOutputStream(msg));
+            final OtpErlangObject msg) throws IOException {
+        // encode and send the message
+        sendBuf(from, dest, new OtpOutputStream(msg));
     }
 
     /*
@@ -162,66 +161,66 @@ public class OtpCookedConnection extends AbstractConnection {
      */
     @SuppressWarnings("resource")
     void send(final OtpErlangPid from, final String dest,
-	    final OtpErlangObject msg) throws IOException {
-	// encode and send the message
-	sendBuf(from, dest, new OtpOutputStream(msg));
+            final OtpErlangObject msg) throws IOException {
+        // encode and send the message
+        sendBuf(from, dest, new OtpOutputStream(msg));
     }
 
     @Override
     public void close() {
-	super.close();
-	breakLinks();
+        super.close();
+        breakLinks();
     }
 
     @Override
     protected void finalize() {
-	close();
+        close();
     }
 
     /*
      * this one called by dying/killed process
      */
     void exit(final OtpErlangPid from, final OtpErlangPid to,
-	    final OtpErlangObject reason) {
-	try {
-	    super.sendExit(from, to, reason);
-	} catch (final Exception e) {
-	}
+            final OtpErlangObject reason) {
+        try {
+            super.sendExit(from, to, reason);
+        } catch (final Exception e) {
+        }
     }
 
     /*
      * this one called explicitely by user code => use exit2
      */
     void exit2(final OtpErlangPid from, final OtpErlangPid to,
-	    final OtpErlangObject reason) {
-	try {
-	    super.sendExit2(from, to, reason);
-	} catch (final Exception e) {
-	}
+            final OtpErlangObject reason) {
+        try {
+            super.sendExit2(from, to, reason);
+        } catch (final Exception e) {
+        }
     }
 
     /*
      * snoop for outgoing links and update own table
      */
     synchronized void link(final OtpErlangPid from, final OtpErlangPid to)
-	    throws OtpErlangExit {
-	try {
-	    super.sendLink(from, to);
-	    links.addLink(from, to);
-	} catch (final IOException e) {
-	    throw new OtpErlangExit("noproc", to);
-	}
+            throws OtpErlangExit {
+        try {
+            super.sendLink(from, to);
+            links.addLink(from, to);
+        } catch (final IOException e) {
+            throw new OtpErlangExit("noproc", to);
+        }
     }
 
     /*
      * snoop for outgoing unlinks and update own table
      */
     synchronized void unlink(final OtpErlangPid from, final OtpErlangPid to) {
-	links.removeLink(from, to);
-	try {
-	    super.sendUnlink(from, to);
-	} catch (final IOException e) {
-	}
+        links.removeLink(from, to);
+        try {
+            super.sendUnlink(from, to);
+        } catch (final IOException e) {
+        }
     }
 
     /*
@@ -229,18 +228,18 @@ public class OtpCookedConnection extends AbstractConnection {
      * through this connection
      */
     synchronized void breakLinks() {
-	if (links != null) {
-	    final Link[] l = links.clearLinks();
-
-	    if (l != null) {
-		final int len = l.length;
-
-		for (int i = 0; i < len; i++) {
-		    // send exit "from" remote pids to local ones
-		    self.deliver(new OtpMsg(OtpMsg.exitTag, l[i].remote(), l[i]
-			    .local(), new OtpErlangAtom("noconnection")));
-		}
-	    }
-	}
+        if (links != null) {
+            final Link[] l = links.clearLinks();
+
+            if (l != null) {
+                final int len = l.length;
+
+                for (int i = 0; i < len; i++) {
+                    // send exit "from" remote pids to local ones
+                    self.deliver(new OtpMsg(OtpMsg.exitTag, l[i].remote(), l[i]
+                            .local(), new OtpErlangAtom("noconnection")));
+                }
+            }
+        }
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpEpmd.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpEpmd.java
index 8a8ba785d9..6c7c8fe951 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpEpmd.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpEpmd.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2013. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -21,20 +21,19 @@ package com.ericsson.otp.erlang;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.net.InetAddress;
-import java.net.Socket;
 
 /**
  * Provides methods for registering, unregistering and looking up nodes with the
  * Erlang portmapper daemon (Epmd). For each registered node, Epmd maintains
  * information about the port on which incoming connections are accepted, as
- * well as which versions of the Erlang communication protocolt the node
+ * well as which versions of the Erlang communication protocol the node
  * supports.
- * 
+ *
  * <p>
  * Nodes wishing to contact other nodes must first request information from Epmd
  * before a connection can be set up, however this is done automatically by
  * {@link OtpSelf#connect(OtpPeer) OtpSelf.connect()} when necessary.
- * 
+ *
  * <p>
  * The methods {@link #publishPort(OtpLocalNode) publishPort()} and
  * {@link #unPublishPort(OtpLocalNode) unPublishPort()} will fail if an Epmd
@@ -42,32 +41,33 @@ import java.net.Socket;
  * {@link #lookupPort(AbstractNode) lookupPort()} will fail if there is no Epmd
  * process running on the host where the specified node is running. See the
  * Erlang documentation for information about starting Epmd.
- * 
+ *
  * <p>
  * This class contains only static methods, there are no constructors.
  */
 public class OtpEpmd {
 
     private static class EpmdPort {
-	private static int epmdPort = 0;
-	
-	public static int get() {
-	    if (epmdPort == 0) {
-		String env;
-		try {
-		    env = System.getenv("ERL_EPMD_PORT");
-		} 
-		catch (java.lang.SecurityException e) {
-		    env = null;
-		}
-		epmdPort = (env != null) ? Integer.parseInt(env) : 4369;
-	    }
-	    return epmdPort;
-	}	
-	public static void set(int port) {
-	    epmdPort = port;
-	}
+        private static int epmdPort = 0;
+
+        public static int get() {
+            if (epmdPort == 0) {
+                String env;
+                try {
+                    env = System.getenv("ERL_EPMD_PORT");
+                } catch (final java.lang.SecurityException e) {
+                    env = null;
+                }
+                epmdPort = env != null ? Integer.parseInt(env) : 4369;
+            }
+            return epmdPort;
+        }
+
+        public static void set(final int port) {
+            epmdPort = port;
+        }
     }
+
     // common values
     private static final byte stopReq = (byte) 115;
 
@@ -81,16 +81,16 @@ public class OtpEpmd {
     private static final int traceThreshold = 4;
 
     static {
-	// debug this connection?
-	final String trace = System.getProperties().getProperty(
-		"OtpConnection.trace");
-	try {
-	    if (trace != null) {
-		traceLevel = Integer.valueOf(trace).intValue();
-	    }
-	} catch (final NumberFormatException e) {
-	    traceLevel = 0;
-	}
+        // debug this connection?
+        final String trace = System.getProperties().getProperty(
+                "OtpConnection.trace");
+        try {
+            if (trace != null) {
+                traceLevel = Integer.valueOf(trace).intValue();
+            }
+        } catch (final NumberFormatException e) {
+            traceLevel = 0;
+        }
     }
 
     // only static methods: no public constructors
@@ -98,51 +98,50 @@ public class OtpEpmd {
     private OtpEpmd() {
     }
 
-
     /**
-     * Set the port number to be used to contact the epmd process.
-     * Only needed when the default port is not desired and system environment
-     * variable ERL_EPMD_PORT can not be read (applet).
+     * Set the port number to be used to contact the epmd process. Only needed
+     * when the default port is not desired and system environment variable
+     * ERL_EPMD_PORT can not be read (applet).
      */
-    public static void useEpmdPort(int port) {
-	EpmdPort.set(port);
+    public static void useEpmdPort(final int port) {
+        EpmdPort.set(port);
     }
 
     /**
      * Determine what port a node listens for incoming connections on.
-     * 
+     *
      * @return the listen port for the specified node, or 0 if the node was not
      *         registered with Epmd.
-     * 
+     *
      * @exception java.io.IOException
      *                if there was no response from the name server.
      */
     public static int lookupPort(final AbstractNode node) throws IOException {
-	    return r4_lookupPort(node);
+        return r4_lookupPort(node);
     }
 
     /**
      * Register with Epmd, so that other nodes are able to find and connect to
      * it.
-     * 
+     *
      * @param node
      *            the server node that should be registered with Epmd.
-     * 
+     *
      * @return true if the operation was successful. False if the node was
      *         already registered.
-     * 
+     *
      * @exception java.io.IOException
      *                if there was no response from the name server.
      */
     public static boolean publishPort(final OtpLocalNode node)
-	    throws IOException {
-	Socket s = null;
+            throws IOException {
+        OtpTransport s = null;
 
-	s = r4_publish(node);
+        s = r4_publish(node);
 
-	node.setEpmd(s);
+        node.setEpmd(s);
 
-	return s != null;
+        return s != null;
     }
 
     // Ask epmd to close his end of the connection.
@@ -151,275 +150,285 @@ public class OtpEpmd {
     /**
      * Unregister from Epmd. Other nodes wishing to connect will no longer be
      * able to.
-     * 
+     *
      * <p>
      * This method does not report any failures.
      */
     public static void unPublishPort(final OtpLocalNode node) {
-	Socket s = null;
-
-	try {
-	    s = new Socket((String) null, EpmdPort.get());
-        @SuppressWarnings("resource")
-	    final OtpOutputStream obuf = new OtpOutputStream();
-	    obuf.write2BE(node.alive().length() + 1);
-	    obuf.write1(stopReq);
-	    obuf.writeN(node.alive().getBytes());
-	    obuf.writeTo(s.getOutputStream());
-	    // don't even wait for a response (is there one?)
-	    if (traceLevel >= traceThreshold) {
-		System.out.println("-> UNPUBLISH " + node + " port="
-			+ node.port());
-		System.out.println("<- OK (assumed)");
-	    }
-	} catch (final Exception e) {/* ignore all failures */
-	} finally {
-	    try {
-		if (s != null) {
-		    s.close();
-		}
-	    } catch (final IOException e) { /* ignore close failure */
-	    }
-	    s = null;
-	}
+        OtpTransport s = null;
+
+        try {
+            s = node.createTransport((String) null, EpmdPort.get());
+            @SuppressWarnings("resource")
+            final OtpOutputStream obuf = new OtpOutputStream();
+            obuf.write2BE(node.alive().length() + 1);
+            obuf.write1(stopReq);
+            obuf.writeN(node.alive().getBytes());
+            obuf.writeToAndFlush(s.getOutputStream());
+            // don't even wait for a response (is there one?)
+            if (traceLevel >= traceThreshold) {
+                System.out.println("-> UNPUBLISH " + node + " port="
+                        + node.port());
+                System.out.println("<- OK (assumed)");
+            }
+        } catch (final Exception e) {/* ignore all failures */
+        } finally {
+            try {
+                if (s != null) {
+                    s.close();
+                }
+            } catch (final IOException e) { /* ignore close failure */
+            }
+            s = null;
+        }
     }
 
     private static int r4_lookupPort(final AbstractNode node)
-	    throws IOException {
-	int port = 0;
-	Socket s = null;
-
-	try {
-        @SuppressWarnings("resource")
-	    final OtpOutputStream obuf = new OtpOutputStream();
-	    s = new Socket(node.host(), EpmdPort.get());
-
-	    // build and send epmd request
-	    // length[2], tag[1], alivename[n] (length = n+1)
-	    obuf.write2BE(node.alive().length() + 1);
-	    obuf.write1(port4req);
-	    obuf.writeN(node.alive().getBytes());
-
-	    // send request
-	    obuf.writeTo(s.getOutputStream());
-
-	    if (traceLevel >= traceThreshold) {
-		System.out.println("-> LOOKUP (r4) " + node);
-	    }
-
-	    // receive and decode reply
-	    // resptag[1], result[1], port[2], ntype[1], proto[1],
-	    // disthigh[2], distlow[2], nlen[2], alivename[n],
-	    // elen[2], edata[m]
-	    final byte[] tmpbuf = new byte[100];
-
-	    final int n = s.getInputStream().read(tmpbuf);
-
-	    if (n < 0) {
-		s.close();
-		throw new IOException("Nameserver not responding on "
-			+ node.host() + " when looking up " + node.alive());
-	    }
-
-        @SuppressWarnings("resource")
-	    final OtpInputStream ibuf = new OtpInputStream(tmpbuf, 0);
-
-	    final int response = ibuf.read1();
-	    if (response == port4resp) {
-		final int result = ibuf.read1();
-		if (result == 0) {
-		    port = ibuf.read2BE();
-
-		    node.ntype = ibuf.read1();
-		    node.proto = ibuf.read1();
-		    node.distHigh = ibuf.read2BE();
-		    node.distLow = ibuf.read2BE();
-		    // ignore rest of fields
-		}
-	    }
-	} catch (final IOException e) {
-	    if (traceLevel >= traceThreshold) {
-		System.out.println("<- (no response)");
-	    }
-	    throw new IOException("Nameserver not responding on " + node.host()
-		    + " when looking up " + node.alive());
-	} catch (final OtpErlangDecodeException e) {
-	    if (traceLevel >= traceThreshold) {
-		System.out.println("<- (invalid response)");
-	    }
-	    throw new IOException("Nameserver not responding on " + node.host()
-		    + " when looking up " + node.alive());
-	} finally {
-	    try {
-		if (s != null) {
-		    s.close();
-		}
-	    } catch (final IOException e) { /* ignore close errors */
-	    }
-	    s = null;
-	}
-
-	if (traceLevel >= traceThreshold) {
-	    if (port == 0) {
-		System.out.println("<- NOT FOUND");
-	    } else {
-		System.out.println("<- PORT " + port);
-	    }
-	}
-	return port;
+            throws IOException {
+        int port = 0;
+        OtpTransport s = null;
+
+        try {
+            @SuppressWarnings("resource")
+            final OtpOutputStream obuf = new OtpOutputStream();
+            s = node.createTransport(node.host(), EpmdPort.get());
+
+            // build and send epmd request
+            // length[2], tag[1], alivename[n] (length = n+1)
+            obuf.write2BE(node.alive().length() + 1);
+            obuf.write1(port4req);
+            obuf.writeN(node.alive().getBytes());
+
+            // send request
+            obuf.writeToAndFlush(s.getOutputStream());
+
+            if (traceLevel >= traceThreshold) {
+                System.out.println("-> LOOKUP (r4) " + node);
+            }
+
+            // receive and decode reply
+            // resptag[1], result[1], port[2], ntype[1], proto[1],
+            // disthigh[2], distlow[2], nlen[2], alivename[n],
+            // elen[2], edata[m]
+            final byte[] tmpbuf = new byte[100];
+
+            final int n = s.getInputStream().read(tmpbuf);
+
+            if (n < 0) {
+                s.close();
+                throw new IOException("Nameserver not responding on "
+                        + node.host() + " when looking up " + node.alive());
+            }
+
+            @SuppressWarnings("resource")
+            final OtpInputStream ibuf = new OtpInputStream(tmpbuf, 0);
+
+            final int response = ibuf.read1();
+            if (response == port4resp) {
+                final int result = ibuf.read1();
+                if (result == 0) {
+                    port = ibuf.read2BE();
+
+                    node.ntype = ibuf.read1();
+                    node.proto = ibuf.read1();
+                    node.distHigh = ibuf.read2BE();
+                    node.distLow = ibuf.read2BE();
+                    // ignore rest of fields
+                }
+            }
+        } catch (final IOException e) {
+            if (traceLevel >= traceThreshold) {
+                System.out.println("<- (no response)");
+            }
+            throw new IOException("Nameserver not responding on " + node.host()
+                    + " when looking up " + node.alive(), e);
+        } catch (final OtpErlangDecodeException e) {
+            if (traceLevel >= traceThreshold) {
+                System.out.println("<- (invalid response)");
+            }
+            throw new IOException("Nameserver not responding on " + node.host()
+                    + " when looking up " + node.alive());
+        } finally {
+            try {
+                if (s != null) {
+                    s.close();
+                }
+            } catch (final IOException e) { /* ignore close errors */
+            }
+            s = null;
+        }
+
+        if (traceLevel >= traceThreshold) {
+            if (port == 0) {
+                System.out.println("<- NOT FOUND");
+            } else {
+                System.out.println("<- PORT " + port);
+            }
+        }
+        return port;
     }
 
     /*
-     * this function will get an exception if it tries to talk to a
-     * very old epmd, or if something else happens that it cannot
-     * forsee. In both cases we return an exception. We no longer
-     * support r3, so the exception is fatal. If we manage to
-     * successfully communicate with an r4 epmd, we return either the
-     * socket, or null, depending on the result.
+     * this function will get an exception if it tries to talk to a very old
+     * epmd, or if something else happens that it cannot forsee. In both cases
+     * we return an exception. We no longer support r3, so the exception is
+     * fatal. If we manage to successfully communicate with an r4 epmd, we
+     * return either the socket, or null, depending on the result.
      */
-    private static Socket r4_publish(final OtpLocalNode node)
-	    throws IOException {
-	Socket s = null;
-
-	try {
-        @SuppressWarnings("resource")
-	    final OtpOutputStream obuf = new OtpOutputStream();
-	    s = new Socket((String) null, EpmdPort.get());
-
-	    obuf.write2BE(node.alive().length() + 13);
-
-	    obuf.write1(publish4req);
-	    obuf.write2BE(node.port());
-
-	    obuf.write1(node.type());
-
-	    obuf.write1(node.proto());
-	    obuf.write2BE(node.distHigh());
-	    obuf.write2BE(node.distLow());
-
-	    obuf.write2BE(node.alive().length());
-	    obuf.writeN(node.alive().getBytes());
-	    obuf.write2BE(0); // No extra
-
-	    // send request
-	    obuf.writeTo(s.getOutputStream());
-
-	    if (traceLevel >= traceThreshold) {
-		System.out.println("-> PUBLISH (r4) " + node + " port="
-			+ node.port());
-	    }
-
-	    // get reply
-	    final byte[] tmpbuf = new byte[100];
-	    final int n = s.getInputStream().read(tmpbuf);
-
-	    if (n < 0) {
-		    s.close();
-		throw new IOException("Nameserver not responding on "
-			+ node.host() + " when publishing " + node.alive());
-	    }
-
-        @SuppressWarnings("resource")
-	    final OtpInputStream ibuf = new OtpInputStream(tmpbuf, 0);
-
-	    final int response = ibuf.read1();
-	    if (response == publish4resp) {
-		final int result = ibuf.read1();
-		if (result == 0) {
-		    node.creation = ibuf.read2BE();
-		    if (traceLevel >= traceThreshold) {
-			System.out.println("<- OK");
-		    }
-		    return s; // success
-		}
-	    }
-	} catch (final IOException e) {
-	    // epmd closed the connection = fail
-	    if (s != null) {
-		s.close();
-	    }
-	    if (traceLevel >= traceThreshold) {
-		System.out.println("<- (no response)");
-	    }
-	    throw new IOException("Nameserver not responding on " + node.host()
-		    + " when publishing " + node.alive());
-	} catch (final OtpErlangDecodeException e) {
-		s.close();
-	    if (traceLevel >= traceThreshold) {
-		System.out.println("<- (invalid response)");
-	    }
-	    throw new IOException("Nameserver not responding on " + node.host()
-		    + " when publishing " + node.alive());
-	}
-
-	    s.close();
-	return null;
+    private static OtpTransport r4_publish(final OtpLocalNode node)
+            throws IOException {
+        OtpTransport s = null;
+
+        try {
+            @SuppressWarnings("resource")
+            final OtpOutputStream obuf = new OtpOutputStream();
+            s = node.createTransport((String) null, EpmdPort.get());
+
+            obuf.write2BE(node.alive().length() + 13);
+
+            obuf.write1(publish4req);
+            obuf.write2BE(node.port());
+
+            obuf.write1(node.type());
+
+            obuf.write1(node.proto());
+            obuf.write2BE(node.distHigh());
+            obuf.write2BE(node.distLow());
+
+            obuf.write2BE(node.alive().length());
+            obuf.writeN(node.alive().getBytes());
+            obuf.write2BE(0); // No extra
+
+            // send request
+            obuf.writeToAndFlush(s.getOutputStream());
+
+            if (traceLevel >= traceThreshold) {
+                System.out.println("-> PUBLISH (r4) " + node + " port="
+                        + node.port());
+            }
+
+            // get reply
+            final byte[] tmpbuf = new byte[100];
+            final int n = s.getInputStream().read(tmpbuf);
+
+            if (n < 0) {
+                s.close();
+                throw new IOException("Nameserver not responding on "
+                        + node.host() + " when publishing " + node.alive());
+            }
+
+            @SuppressWarnings("resource")
+            final OtpInputStream ibuf = new OtpInputStream(tmpbuf, 0);
+
+            final int response = ibuf.read1();
+            if (response == publish4resp) {
+                final int result = ibuf.read1();
+                if (result == 0) {
+                    node.creation = ibuf.read2BE();
+                    if (traceLevel >= traceThreshold) {
+                        System.out.println("<- OK");
+                    }
+                    return s; // success
+                }
+            }
+        } catch (final IOException e) {
+            // epmd closed the connection = fail
+            if (s != null) {
+                s.close();
+            }
+            if (traceLevel >= traceThreshold) {
+                System.out.println("<- (no response)");
+            }
+            throw new IOException("Nameserver not responding on " + node.host()
+                    + " when publishing " + node.alive());
+        } catch (final OtpErlangDecodeException e) {
+            s.close();
+            if (traceLevel >= traceThreshold) {
+                System.out.println("<- (invalid response)");
+            }
+            throw new IOException("Nameserver not responding on " + node.host()
+                    + " when publishing " + node.alive());
+        }
+
+        s.close();
+        return null;
     }
 
     public static String[] lookupNames() throws IOException {
-       return lookupNames(InetAddress.getByName(null));
+        return lookupNames(InetAddress.getByName(null),
+                new OtpSocketTransportFactory());
+    }
+
+    public static String[] lookupNames(
+            final OtpTransportFactory transportFactory) throws IOException {
+        return lookupNames(InetAddress.getByName(null), transportFactory);
     }
 
     public static String[] lookupNames(final InetAddress address)
-	    throws IOException {
-	Socket s = null;
-
-	try {
-        @SuppressWarnings("resource")
-	    final OtpOutputStream obuf = new OtpOutputStream();
-	    try {
-		s = new Socket(address, EpmdPort.get());
-
-		obuf.write2BE(1);
-		obuf.write1(names4req);
-		// send request
-		obuf.writeTo(s.getOutputStream());
-
-		if (traceLevel >= traceThreshold) {
-		    System.out.println("-> NAMES (r4) ");
-		}
-
-		// get reply
-		final byte[] buffer = new byte[256];
-		final ByteArrayOutputStream out = new ByteArrayOutputStream(256);
-		while (true) {
-		    final int bytesRead = s.getInputStream().read(buffer);
-		    if (bytesRead == -1) {
-			break;
-		    }
-		    out.write(buffer, 0, bytesRead);
-		}
-		final byte[] tmpbuf = out.toByteArray();
-        @SuppressWarnings("resource")
-		final OtpInputStream ibuf = new OtpInputStream(tmpbuf, 0);
-		ibuf.read4BE(); // read port int
-		// final int port = ibuf.read4BE();
-		// check if port = epmdPort
-
-		final int n = tmpbuf.length;
-		final byte[] buf = new byte[n - 4];
-		System.arraycopy(tmpbuf, 4, buf, 0, n - 4);
-		final String all = OtpErlangString.newString(buf);
-		return all.split("\n");
-	    } finally {
-		if (s != null) {
-		    s.close();
-		}
-	    }
-
-	} catch (final IOException e) {
-	    if (traceLevel >= traceThreshold) {
-		System.out.println("<- (no response)");
-	    }
-	    throw new IOException(
-		    "Nameserver not responding when requesting names");
-	} catch (final OtpErlangDecodeException e) {
-	    if (traceLevel >= traceThreshold) {
-		System.out.println("<- (invalid response)");
-	    }
-	    throw new IOException(
-		    "Nameserver not responding when requesting names");
-	}
+            throws IOException {
+        return lookupNames(address, new OtpSocketTransportFactory());
+    }
+
+    public static String[] lookupNames(final InetAddress address,
+            final OtpTransportFactory transportFactory) throws IOException {
+        OtpTransport s = null;
+
+        try {
+            @SuppressWarnings("resource")
+            final OtpOutputStream obuf = new OtpOutputStream();
+            try {
+                s = transportFactory.createTransport(address, EpmdPort.get());
+
+                obuf.write2BE(1);
+                obuf.write1(names4req);
+                // send request
+                obuf.writeToAndFlush(s.getOutputStream());
+
+                if (traceLevel >= traceThreshold) {
+                    System.out.println("-> NAMES (r4) ");
+                }
+
+                // get reply
+                final byte[] buffer = new byte[256];
+                final ByteArrayOutputStream out = new ByteArrayOutputStream(256);
+                while (true) {
+                    final int bytesRead = s.getInputStream().read(buffer);
+                    if (bytesRead == -1) {
+                        break;
+                    }
+                    out.write(buffer, 0, bytesRead);
+                }
+                final byte[] tmpbuf = out.toByteArray();
+                @SuppressWarnings("resource")
+                final OtpInputStream ibuf = new OtpInputStream(tmpbuf, 0);
+                ibuf.read4BE(); // read port int
+                // final int port = ibuf.read4BE();
+                // check if port = epmdPort
+
+                final int n = tmpbuf.length;
+                final byte[] buf = new byte[n - 4];
+                System.arraycopy(tmpbuf, 4, buf, 0, n - 4);
+                final String all = OtpErlangString.newString(buf);
+                return all.split("\n");
+            } finally {
+                if (s != null) {
+                    s.close();
+                }
+            }
+
+        } catch (final IOException e) {
+            if (traceLevel >= traceThreshold) {
+                System.out.println("<- (no response)");
+            }
+            throw new IOException(
+                    "Nameserver not responding when requesting names");
+        } catch (final OtpErlangDecodeException e) {
+            if (traceLevel >= traceThreshold) {
+                System.out.println("<- (invalid response)");
+            }
+            throw new IOException(
+                    "Nameserver not responding when requesting names");
+        }
     }
 
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangAtom.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangAtom.java
index bff3e2c0e3..5b2a2baad5 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangAtom.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangAtom.java
@@ -1,24 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2013. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
-
 /**
  * Provides a Java representation of Erlang atoms. Atoms can be created from
  * strings whose length is not more than {@link #maxAtomLength maxAtomLength}
@@ -35,72 +34,71 @@ public class OtpErlangAtom extends OtpErlangObject {
 
     /**
      * Create an atom from the given string.
-     * 
+     *
      * @param atom
-     *                the string to create the atom from.
-     * 
+     *            the string to create the atom from.
+     *
      * @exception java.lang.IllegalArgumentException
-     *                    if the string is null or contains more than
-     *                    {@link #maxAtomLength maxAtomLength} characters.
+     *                if the string is null or contains more than
+     *                {@link #maxAtomLength maxAtomLength} characters.
      */
     public OtpErlangAtom(final String atom) {
-	if (atom == null) {
-	    throw new java.lang.IllegalArgumentException(
-		    "null string value");
-	}
-
-	if (atom.codePointCount(0, atom.length()) > maxAtomLength) {
-	    throw new java.lang.IllegalArgumentException("Atom may not exceed "
-		    + maxAtomLength + " characters: " + atom);
-	}
-	this.atom = atom;
+        if (atom == null) {
+            throw new java.lang.IllegalArgumentException("null string value");
+        }
+
+        if (atom.codePointCount(0, atom.length()) > maxAtomLength) {
+            throw new java.lang.IllegalArgumentException("Atom may not exceed "
+                    + maxAtomLength + " characters: " + atom);
+        }
+        this.atom = atom;
     }
 
     /**
      * Create an atom from a stream containing an atom encoded in Erlang
      * external format.
-     * 
+     *
      * @param buf
-     *                the stream containing the encoded atom.
-     * 
+     *            the stream containing the encoded atom.
+     *
      * @exception OtpErlangDecodeException
-     *                    if the buffer does not contain a valid external
-     *                    representation of an Erlang atom.
+     *                if the buffer does not contain a valid external
+     *                representation of an Erlang atom.
      */
     public OtpErlangAtom(final OtpInputStream buf)
-	    throws OtpErlangDecodeException {
-	atom = buf.read_atom();
+            throws OtpErlangDecodeException {
+        atom = buf.read_atom();
     }
 
     /**
      * Create an atom whose value is "true" or "false".
      */
     public OtpErlangAtom(final boolean t) {
-	atom = String.valueOf(t);
+        atom = String.valueOf(t);
     }
 
     /**
      * Get the actual string contained in this object.
-     * 
+     *
      * @return the raw string contained in this object, without regard to Erlang
      *         quoting rules.
-     * 
+     *
      * @see #toString
      */
     public String atomValue() {
-	return atom;
+        return atom;
     }
 
     /**
      * The boolean value of this atom.
-     * 
+     *
      * @return the value of this atom expressed as a boolean value. If the atom
      *         consists of the characters "true" (independent of case) the value
      *         will be true. For any other values, the value will be false.
-     * 
+     *
      */
     public boolean booleanValue() {
-	return Boolean.valueOf(atomValue()).booleanValue();
+        return Boolean.valueOf(atomValue()).booleanValue();
     }
 
     /**
@@ -108,92 +106,91 @@ public class OtpErlangAtom extends OtpErlangObject {
      * between this method and {link #atomValue atomValue()} is that the
      * printname is quoted and escaped where necessary, according to the Erlang
      * rules for atom naming.
-     * 
+     *
      * @return the printname representation of this atom object.
-     * 
+     *
      * @see #atomValue
      */
     @Override
     public String toString() {
-	if (atomNeedsQuoting(atom)) {
-	    return "'" + escapeSpecialChars(atom) + "'";
-	}
-    return atom;
+        if (atomNeedsQuoting(atom)) {
+            return "'" + escapeSpecialChars(atom) + "'";
+        }
+        return atom;
     }
 
     /**
      * Determine if two atoms are equal.
-     * 
+     *
      * @param o
-     *                the other object to compare to.
-     * 
+     *            the other object to compare to.
+     *
      * @return true if the atoms are equal, false otherwise.
      */
     @Override
     public boolean equals(final Object o) {
 
-	if (!(o instanceof OtpErlangAtom)) {
-	    return false;
-	}
+        if (!(o instanceof OtpErlangAtom)) {
+            return false;
+        }
 
-	final OtpErlangAtom other = (OtpErlangAtom) o;
-	return this.atom.compareTo(other.atom) == 0;
+        final OtpErlangAtom other = (OtpErlangAtom) o;
+        return atom.compareTo(other.atom) == 0;
     }
-    
+
     @Override
     protected int doHashCode() {
-	return atom.hashCode();
+        return atom.hashCode();
     }
 
     /**
      * Convert this atom to the equivalent Erlang external representation.
-     * 
+     *
      * @param buf
-     *                an output stream to which the encoded atom should be
-     *                written.
+     *            an output stream to which the encoded atom should be written.
      */
     @Override
     public void encode(final OtpOutputStream buf) {
-	buf.write_atom(atom);
+        buf.write_atom(atom);
     }
 
     /* the following four predicates are helpers for the toString() method */
     private boolean isErlangDigit(final char c) {
-	return c >= '0' && c <= '9';
+        return c >= '0' && c <= '9';
     }
 
     private boolean isErlangUpper(final char c) {
-	return c >= 'A' && c <= 'Z' || c == '_';
+        return c >= 'A' && c <= 'Z' || c == '_';
     }
 
     private boolean isErlangLower(final char c) {
-	return c >= 'a' && c <= 'z';
+        return c >= 'a' && c <= 'z';
     }
 
     private boolean isErlangLetter(final char c) {
-	return isErlangLower(c) || isErlangUpper(c);
+        return isErlangLower(c) || isErlangUpper(c);
     }
 
     // true if the atom should be displayed with quotation marks
     private boolean atomNeedsQuoting(final String s) {
-	char c;
-
-	if (s.length() == 0) {
-	    return true;
-	}
-	if (!isErlangLower(s.charAt(0))) {
-	    return true;
-	}
-
-	final int len = s.length();
-	for (int i = 1; i < len; i++) {
-	    c = s.charAt(i);
-
-	    if (!isErlangLetter(c) && !isErlangDigit(c) && c != '@') {
-		return true;
-	    }
-	}
-	return false;
+        char c;
+
+        if (s.length() == 0) {
+            return true;
+        }
+        if (!isErlangLower(s.charAt(0))) {
+            return true;
+        }
+
+        final int len = s.length();
+        for (int i = 1; i < len; i++) {
+            c = s.charAt(i);
+
+            if (!isErlangLetter(c) && !isErlangDigit(c) && c != '@') {
+                return true;
+            }
+        }
+        return false;
     }
 
     /*
@@ -202,80 +199,80 @@ public class OtpErlangAtom extends OtpErlangObject {
      * printable.
      */
     private String escapeSpecialChars(final String s) {
-	char c;
-	final StringBuffer so = new StringBuffer();
-
-	final int len = s.length();
-	for (int i = 0; i < len; i++) {
-	    c = s.charAt(i);
-
-	    /*
-	     * note that some of these escape sequences are unique to Erlang,
-	     * which is why the corresponding 'case' values use octal. The
-	     * resulting string is, of course, in Erlang format.
-	     */
-
-	    switch (c) {
-	    // some special escape sequences
-	    case '\b':
-		so.append("\\b");
-		break;
-
-	    case 0177:
-		so.append("\\d");
-		break;
-
-	    case 033:
-		so.append("\\e");
-		break;
-
-	    case '\f':
-		so.append("\\f");
-		break;
-
-	    case '\n':
-		so.append("\\n");
-		break;
-
-	    case '\r':
-		so.append("\\r");
-		break;
-
-	    case '\t':
-		so.append("\\t");
-		break;
-
-	    case 013:
-		so.append("\\v");
-		break;
-
-	    case '\\':
-		so.append("\\\\");
-		break;
-
-	    case '\'':
-		so.append("\\'");
-		break;
-
-	    case '\"':
-		so.append("\\\"");
-		break;
-
-	    default:
-		// some other character classes
-		if (c < 027) {
-		    // control chars show as "\^@", "\^A" etc
-		    so.append("\\^" + (char) ('A' - 1 + c));
-		} else if (c > 126) {
-		    // 8-bit chars show as \345 \344 \366 etc
-		    so.append("\\" + Integer.toOctalString(c));
-		} else {
-		    // character is printable without modification!
-		    so.append(c);
-		}
-	    }
-	}
-	return new String(so);
+        char c;
+        final StringBuffer so = new StringBuffer();
+
+        final int len = s.length();
+        for (int i = 0; i < len; i++) {
+            c = s.charAt(i);
+
+            /*
+             * note that some of these escape sequences are unique to Erlang,
+             * which is why the corresponding 'case' values use octal. The
+             * resulting string is, of course, in Erlang format.
+             */
+
+            switch (c) {
+            // some special escape sequences
+            case '\b':
+                so.append("\\b");
+                break;
+
+            case 0177:
+                so.append("\\d");
+                break;
+
+            case 033:
+                so.append("\\e");
+                break;
+
+            case '\f':
+                so.append("\\f");
+                break;
+
+            case '\n':
+                so.append("\\n");
+                break;
+
+            case '\r':
+                so.append("\\r");
+                break;
+
+            case '\t':
+                so.append("\\t");
+                break;
+
+            case 013:
+                so.append("\\v");
+                break;
+
+            case '\\':
+                so.append("\\\\");
+                break;
+
+            case '\'':
+                so.append("\\'");
+                break;
+
+            case '\"':
+                so.append("\\\"");
+                break;
+
+            default:
+                // some other character classes
+                if (c < 027) {
+                    // control chars show as "\^@", "\^A" etc
+                    so.append("\\^" + (char) ('A' - 1 + c));
+                } else if (c > 126) {
+                    // 8-bit chars show as \345 \344 \366 etc
+                    so.append("\\" + Integer.toOctalString(c));
+                } else {
+                    // character is printable without modification!
+                    so.append(c);
+                }
+            }
+        }
+        return new String(so);
     }
 
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangBinary.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangBinary.java
index 0891781f8d..c86a7bb05b 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangBinary.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangBinary.java
@@ -1,24 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
-
 /**
  * Provides a Java representation of Erlang binaries. Anything that can be
  * represented as a sequence of bytes can be made into an Erlang binary.
@@ -29,58 +28,58 @@ public class OtpErlangBinary extends OtpErlangBitstr {
 
     /**
      * Create a binary from a byte array
-     * 
+     *
      * @param bin
-     *                the array of bytes from which to create the binary.
+     *            the array of bytes from which to create the binary.
      */
     public OtpErlangBinary(final byte[] bin) {
-	super(bin);
+        super(bin);
     }
 
     /**
      * Create a binary from a stream containing a binary encoded in Erlang
      * external format.
-     * 
+     *
      * @param buf
-     *                the stream containing the encoded binary.
-     * 
+     *            the stream containing the encoded binary.
+     *
      * @exception OtpErlangDecodeException
-     *                    if the buffer does not contain a valid external
-     *                    representation of an Erlang binary.
+     *                if the buffer does not contain a valid external
+     *                representation of an Erlang binary.
      */
     public OtpErlangBinary(final OtpInputStream buf)
-	    throws OtpErlangDecodeException {
-	super(new byte[0]);
-	bin = buf.read_binary();
-	pad_bits = 0;
+            throws OtpErlangDecodeException {
+        super(new byte[0]);
+        bin = buf.read_binary();
+        pad_bits = 0;
     }
 
     /**
      * Create a binary from an arbitrary Java Object. The object must implement
      * java.io.Serializable or java.io.Externalizable.
-     * 
+     *
      * @param o
-     *                the object to serialize and create this binary from.
+     *            the object to serialize and create this binary from.
      */
     public OtpErlangBinary(final Object o) {
-	super(o);
+        super(o);
     }
 
     /**
      * Convert this binary to the equivalent Erlang external representation.
-     * 
+     *
      * @param buf
-     *                an output stream to which the encoded binary should be
-     *                written.
+     *            an output stream to which the encoded binary should be
+     *            written.
      */
     @Override
     public void encode(final OtpOutputStream buf) {
-	buf.write_binary(bin);
+        buf.write_binary(bin);
     }
 
     @Override
     public Object clone() {
-	final OtpErlangBinary that = (OtpErlangBinary) super.clone();
-	return that;
+        final OtpErlangBinary that = (OtpErlangBinary) super.clone();
+        return that;
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangBitstr.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangBitstr.java
index 8cb4e0e685..7724892bd3 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangBitstr.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangBitstr.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2007-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -35,249 +35,249 @@ public class OtpErlangBitstr extends OtpErlangObject {
 
     /**
      * Create a bitstr from a byte array
-     * 
+     *
      * @param bin
-     *                the array of bytes from which to create the bitstr.
+     *            the array of bytes from which to create the bitstr.
      */
     public OtpErlangBitstr(final byte[] bin) {
-	this.bin = new byte[bin.length];
-	System.arraycopy(bin, 0, this.bin, 0, bin.length);
-	pad_bits = 0;
+        this.bin = new byte[bin.length];
+        System.arraycopy(bin, 0, this.bin, 0, bin.length);
+        pad_bits = 0;
     }
 
     /**
      * Create a bitstr with pad bits from a byte array.
-     * 
+     *
      * @param bin
-     *                the array of bytes from which to create the bitstr.
+     *            the array of bytes from which to create the bitstr.
      * @param pad_bits
-     *                the number of unused bits in the low end of the last byte.
+     *            the number of unused bits in the low end of the last byte.
      */
     public OtpErlangBitstr(final byte[] bin, final int pad_bits) {
-	this.bin = new byte[bin.length];
-	System.arraycopy(bin, 0, this.bin, 0, bin.length);
-	this.pad_bits = pad_bits;
+        this.bin = new byte[bin.length];
+        System.arraycopy(bin, 0, this.bin, 0, bin.length);
+        this.pad_bits = pad_bits;
 
-	check_bitstr(this.bin, this.pad_bits);
+        check_bitstr(this.bin, this.pad_bits);
     }
 
     private void check_bitstr(final byte[] abin, final int a_pad_bits) {
-	if (a_pad_bits < 0 || 7 < a_pad_bits) {
-	    throw new java.lang.IllegalArgumentException(
-		    "Padding must be in range 0..7");
-	}
-	if (a_pad_bits != 0 && abin.length == 0) {
-	    throw new java.lang.IllegalArgumentException(
-		    "Padding on zero length bitstr");
-	}
-	if (abin.length != 0) {
-	    // Make sure padding is zero
-	    abin[abin.length - 1] &= ~((1 << a_pad_bits) - 1);
-	}
+        if (a_pad_bits < 0 || 7 < a_pad_bits) {
+            throw new java.lang.IllegalArgumentException(
+                    "Padding must be in range 0..7");
+        }
+        if (a_pad_bits != 0 && abin.length == 0) {
+            throw new java.lang.IllegalArgumentException(
+                    "Padding on zero length bitstr");
+        }
+        if (abin.length != 0) {
+            // Make sure padding is zero
+            abin[abin.length - 1] &= ~((1 << a_pad_bits) - 1);
+        }
     }
 
     /**
      * Create a bitstr from a stream containing a bitstr encoded in Erlang
      * external format.
-     * 
+     *
      * @param buf
-     *                the stream containing the encoded bitstr.
-     * 
+     *            the stream containing the encoded bitstr.
+     *
      * @exception OtpErlangDecodeException
-     *                    if the buffer does not contain a valid external
-     *                    representation of an Erlang bitstr.
+     *                if the buffer does not contain a valid external
+     *                representation of an Erlang bitstr.
      */
     public OtpErlangBitstr(final OtpInputStream buf)
-	    throws OtpErlangDecodeException {
-	final int pbs[] = { 0 }; // This is ugly just to get a value-result
-				    // parameter
-	bin = buf.read_bitstr(pbs);
-	pad_bits = pbs[0];
+            throws OtpErlangDecodeException {
+        final int pbs[] = { 0 }; // This is ugly just to get a value-result
+        // parameter
+        bin = buf.read_bitstr(pbs);
+        pad_bits = pbs[0];
 
-	check_bitstr(bin, pad_bits);
+        check_bitstr(bin, pad_bits);
     }
 
     /**
      * Create a bitstr from an arbitrary Java Object. The object must implement
      * java.io.Serializable or java.io.Externalizable.
-     * 
+     *
      * @param o
-     *                the object to serialize and create this bitstr from.
+     *            the object to serialize and create this bitstr from.
      */
     public OtpErlangBitstr(final Object o) {
-	try {
-	    bin = toByteArray(o);
-	    pad_bits = 0;
-	} catch (final IOException e) {
-	    throw new java.lang.IllegalArgumentException(
-		    "Object must implement Serializable");
-	}
+        try {
+            bin = toByteArray(o);
+            pad_bits = 0;
+        } catch (final IOException e) {
+            throw new java.lang.IllegalArgumentException(
+                    "Object must implement Serializable");
+        }
     }
 
     private static byte[] toByteArray(final Object o)
-	    throws java.io.IOException {
+            throws java.io.IOException {
 
-	if (o == null) {
-	    return null;
-	}
+        if (o == null) {
+            return null;
+        }
 
-	/* need to synchronize use of the shared baos */
-	final java.io.ByteArrayOutputStream baos = new ByteArrayOutputStream();
-	final java.io.ObjectOutputStream oos = new java.io.ObjectOutputStream(
-		baos);
+        /* need to synchronize use of the shared baos */
+        final java.io.ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        final java.io.ObjectOutputStream oos = new java.io.ObjectOutputStream(
+                baos);
 
-	oos.writeObject(o);
-	oos.flush();
+        oos.writeObject(o);
+        oos.flush();
 
-	return baos.toByteArray();
+        return baos.toByteArray();
     }
 
     private static Object fromByteArray(final byte[] buf) {
-	if (buf == null) {
-	    return null;
-	}
+        if (buf == null) {
+            return null;
+        }
 
-	try {
-	    final java.io.ByteArrayInputStream bais = new java.io.ByteArrayInputStream(
-		    buf);
-	    final java.io.ObjectInputStream ois = new java.io.ObjectInputStream(
-		    bais);
-	    return ois.readObject();
-	} catch (final java.lang.ClassNotFoundException e) {
-	} catch (final java.io.IOException e) {
-	}
+        try {
+            final java.io.ByteArrayInputStream bais = new java.io.ByteArrayInputStream(
+                    buf);
+            final java.io.ObjectInputStream ois = new java.io.ObjectInputStream(
+                    bais);
+            return ois.readObject();
+        } catch (final java.lang.ClassNotFoundException e) {
+        } catch (final java.io.IOException e) {
+        }
 
-	return null;
+        return null;
     }
 
     /**
      * Get the byte array from a bitstr, padded with zero bits in the little end
      * of the last byte.
-     * 
+     *
      * @return the byte array containing the bytes for this bitstr.
      */
     public byte[] binaryValue() {
-	return bin;
+        return bin;
     }
 
     /**
      * Get the size in whole bytes of the bitstr, rest bits in the last byte not
      * counted.
-     * 
+     *
      * @return the number of bytes contained in the bintstr.
      */
     public int size() {
-	if (pad_bits == 0) {
-	    return bin.length;
-	}
-	if (bin.length == 0) {
-	    throw new java.lang.IllegalStateException("Impossible length");
-	}
-	return bin.length - 1;
+        if (pad_bits == 0) {
+            return bin.length;
+        }
+        if (bin.length == 0) {
+            throw new java.lang.IllegalStateException("Impossible length");
+        }
+        return bin.length - 1;
     }
 
     /**
      * Get the number of pad bits in the last byte of the bitstr. The pad bits
      * are zero and in the little end.
-     * 
+     *
      * @return the number of pad bits in the bitstr.
      */
     public int pad_bits() {
-	return pad_bits;
+        return pad_bits;
     }
 
     /**
      * Get the java Object from the bitstr. If the bitstr contains a serialized
      * Java object, then this method will recreate the object.
-     * 
-     * 
+     *
+     *
      * @return the java Object represented by this bitstr, or null if the bitstr
      *         does not represent a Java Object.
      */
     public Object getObject() {
-	if (pad_bits != 0) {
-	    return null;
-	}
-	return fromByteArray(bin);
+        if (pad_bits != 0) {
+            return null;
+        }
+        return fromByteArray(bin);
     }
 
     /**
      * Get the string representation of this bitstr object. A bitstr is printed
      * as #Bin&lt;N&gt;, where N is the number of bytes contained in the object
      * or #bin&lt;N-M&gt; if there are M pad bits.
-     * 
+     *
      * @return the Erlang string representation of this bitstr.
      */
     @Override
     public String toString() {
-	if (pad_bits == 0) {
-	    return "#Bin<" + bin.length + ">";
-	}
-	if (bin.length == 0) {
-	    throw new java.lang.IllegalStateException("Impossible length");
-	}
-	return "#Bin<" + bin.length + "-" + pad_bits + ">";
+        if (pad_bits == 0) {
+            return "#Bin<" + bin.length + ">";
+        }
+        if (bin.length == 0) {
+            throw new java.lang.IllegalStateException("Impossible length");
+        }
+        return "#Bin<" + bin.length + "-" + pad_bits + ">";
     }
 
     /**
      * Convert this bitstr to the equivalent Erlang external representation.
-     * 
+     *
      * @param buf
-     *                an output stream to which the encoded bitstr should be
-     *                written.
+     *            an output stream to which the encoded bitstr should be
+     *            written.
      */
     @Override
     public void encode(final OtpOutputStream buf) {
-	buf.write_bitstr(bin, pad_bits);
+        buf.write_bitstr(bin, pad_bits);
     }
 
     /**
      * Determine if two bitstrs are equal. Bitstrs are equal if they have the
      * same byte length and tail length, and the array of bytes is identical.
-     * 
+     *
      * @param o
-     *                the bitstr to compare to.
-     * 
+     *            the bitstr to compare to.
+     *
      * @return true if the bitstrs contain the same bits, false otherwise.
      */
     @Override
     public boolean equals(final Object o) {
-	if (!(o instanceof OtpErlangBitstr)) {
-	    return false;
-	}
+        if (!(o instanceof OtpErlangBitstr)) {
+            return false;
+        }
 
-	final OtpErlangBitstr that = (OtpErlangBitstr) o;
-	if (pad_bits != that.pad_bits) {
-	    return false;
-	}
+        final OtpErlangBitstr that = (OtpErlangBitstr) o;
+        if (pad_bits != that.pad_bits) {
+            return false;
+        }
 
-	final int len = bin.length;
-	if (len != that.bin.length) {
-	    return false;
-	}
+        final int len = bin.length;
+        if (len != that.bin.length) {
+            return false;
+        }
 
-	for (int i = 0; i < len; i++) {
-	    if (bin[i] != that.bin[i]) {
-		return false; // early exit
-	    }
-	}
+        for (int i = 0; i < len; i++) {
+            if (bin[i] != that.bin[i]) {
+                return false; // early exit
+            }
+        }
 
-	return true;
+        return true;
     }
-    
+
     @Override
     protected int doHashCode() {
-	OtpErlangObject.Hash hash = new OtpErlangObject.Hash(15);
-	hash.combine(bin);
-	hash.combine(pad_bits);
-	return hash.valueOf();
+        final OtpErlangObject.Hash hash = new OtpErlangObject.Hash(15);
+        hash.combine(bin);
+        hash.combine(pad_bits);
+        return hash.valueOf();
     }
-    
+
     @Override
     public Object clone() {
-	final OtpErlangBitstr that = (OtpErlangBitstr) super.clone();
-	that.bin = bin.clone();
-	that.pad_bits = pad_bits;
-	return that;
+        final OtpErlangBitstr that = (OtpErlangBitstr) super.clone();
+        that.bin = bin.clone();
+        that.pad_bits = pad_bits;
+        return that;
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangBoolean.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangBoolean.java
index eecd2ea288..3f15317a94 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangBoolean.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangBoolean.java
@@ -1,24 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
-
 /**
  * Provides a Java representation of Erlang booleans, which are special cases of
  * atoms with values 'true' and 'false'.
@@ -29,12 +28,12 @@ public class OtpErlangBoolean extends OtpErlangAtom {
 
     /**
      * Create a boolean from the given value
-     * 
+     *
      * @param t
-     *                the boolean value to represent as an atom.
+     *            the boolean value to represent as an atom.
      */
     public OtpErlangBoolean(final boolean t) {
-	super(t);
+        super(t);
     }
 
     /**
@@ -42,13 +41,13 @@ public class OtpErlangBoolean extends OtpErlangAtom {
      * external format. The value of the boolean will be true if the atom
      * represented by the stream is "true" without regard to case. For other
      * atom values, the boolean will have the value false.
-     * 
+     *
      * @exception OtpErlangDecodeException
-     *                    if the buffer does not contain a valid external
-     *                    representation of an Erlang atom.
+     *                if the buffer does not contain a valid external
+     *                representation of an Erlang atom.
      */
     public OtpErlangBoolean(final OtpInputStream buf)
-	    throws OtpErlangDecodeException {
-	super(buf);
+            throws OtpErlangDecodeException {
+        super(buf);
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangByte.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangByte.java
index eb6f3d8aba..622e31fa3b 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangByte.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangByte.java
@@ -1,24 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
-
 /**
  * Provides a Java representation of Erlang integral types.
  */
@@ -28,32 +27,32 @@ public class OtpErlangByte extends OtpErlangLong {
 
     /**
      * Create an Erlang integer from the given value.
-     * 
+     *
      * @param b
-     *                the byte value to use.
+     *            the byte value to use.
      */
     public OtpErlangByte(final byte b) {
-	super(b);
+        super(b);
     }
 
     /**
      * Create an Erlang integer from a stream containing an integer encoded in
      * Erlang external format.
-     * 
+     *
      * @param buf
-     *                the stream containing the encoded value.
-     * 
+     *            the stream containing the encoded value.
+     *
      * @exception OtpErlangDecodeException
-     *                    if the buffer does not contain a valid external
-     *                    representation of an Erlang integer.
-     * 
+     *                if the buffer does not contain a valid external
+     *                representation of an Erlang integer.
+     *
      * @exception OtpErlangRangeException
-     *                    if the value is too large to be represented as a byte.
+     *                if the value is too large to be represented as a byte.
      */
     public OtpErlangByte(final OtpInputStream buf)
-	    throws OtpErlangRangeException, OtpErlangDecodeException {
-	super(buf);
+            throws OtpErlangRangeException, OtpErlangDecodeException {
+        super(buf);
 
-    byteValue();
+        byteValue();
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangChar.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangChar.java
index e7c6dd8ad4..1401716839 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangChar.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangChar.java
@@ -1,24 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
-
 /**
  * Provides a Java representation of Erlang integral types.
  */
@@ -28,32 +27,32 @@ public class OtpErlangChar extends OtpErlangLong {
 
     /**
      * Create an Erlang integer from the given value.
-     * 
+     *
      * @param c
-     *                the char value to use.
+     *            the char value to use.
      */
     public OtpErlangChar(final char c) {
-	super(c);
+        super(c);
     }
 
     /**
      * Create an Erlang integer from a stream containing an integer encoded in
      * Erlang external format.
-     * 
+     *
      * @param buf
-     *                the stream containing the encoded value.
-     * 
+     *            the stream containing the encoded value.
+     *
      * @exception OtpErlangDecodeException
-     *                    if the buffer does not contain a valid external
-     *                    representation of an Erlang integer.
-     * 
+     *                if the buffer does not contain a valid external
+     *                representation of an Erlang integer.
+     *
      * @exception OtpErlangRangeException
-     *                    if the value is too large to be represented as a char.
+     *                if the value is too large to be represented as a char.
      */
     public OtpErlangChar(final OtpInputStream buf)
-	    throws OtpErlangRangeException, OtpErlangDecodeException {
-	super(buf);
+            throws OtpErlangRangeException, OtpErlangDecodeException {
+        super(buf);
 
-    charValue();
+        charValue();
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangDecodeException.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangDecodeException.java
index 6986e26908..a7a9e71a08 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangDecodeException.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangDecodeException.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -22,7 +22,7 @@ package com.ericsson.otp.erlang;
  * Exception raised when an attempt is made to create an Erlang term by decoding
  * a sequence of bytes that does not represent the type of term that was
  * requested.
- * 
+ *
  * @see OtpInputStream
  */
 public class OtpErlangDecodeException extends OtpErlangException {
@@ -32,6 +32,6 @@ public class OtpErlangDecodeException extends OtpErlangException {
      * Provides a detailed message.
      */
     public OtpErlangDecodeException(final String msg) {
-	super(msg);
+        super(msg);
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangDouble.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangDouble.java
index e92ce11431..bf0b7d5c11 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangDouble.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangDouble.java
@@ -1,24 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
-
 /**
  * Provides a Java representation of Erlang floats and doubles. Erlang defines
  * only one floating point numeric type, however this class and its subclass
@@ -35,96 +34,95 @@ public class OtpErlangDouble extends OtpErlangObject {
      * Create an Erlang float from the given double value.
      */
     public OtpErlangDouble(final double d) {
-	this.d = d;
+        this.d = d;
     }
 
     /**
      * Create an Erlang float from a stream containing a double encoded in
      * Erlang external format.
-     * 
+     *
      * @param buf
-     *                the stream containing the encoded value.
-     * 
+     *            the stream containing the encoded value.
+     *
      * @exception OtpErlangDecodeException
-     *                    if the buffer does not contain a valid external
-     *                    representation of an Erlang float.
+     *                if the buffer does not contain a valid external
+     *                representation of an Erlang float.
      */
     public OtpErlangDouble(final OtpInputStream buf)
-	    throws OtpErlangDecodeException {
-	d = buf.read_double();
+            throws OtpErlangDecodeException {
+        d = buf.read_double();
     }
 
     /**
      * Get the value, as a double.
-     * 
+     *
      * @return the value of this object, as a double.
      */
     public double doubleValue() {
-	return d;
+        return d;
     }
 
     /**
      * Get the value, as a float.
-     * 
+     *
      * @return the value of this object, as a float.
-     * 
+     *
      * @exception OtpErlangRangeException
-     *                    if the value cannot be represented as a float.
+     *                if the value cannot be represented as a float.
      */
     public float floatValue() throws OtpErlangRangeException {
-	final float f = (float) d;
+        final float f = (float) d;
 
-	if (f != d) {
-	    throw new OtpErlangRangeException("Value too large for float: " + d);
-	}
+        if (f != d) {
+            throw new OtpErlangRangeException("Value too large for float: " + d);
+        }
 
-	return f;
+        return f;
     }
 
     /**
      * Get the string representation of this double.
-     * 
+     *
      * @return the string representation of this double.
      */
     @Override
     public String toString() {
-	return "" + d;
+        return "" + d;
     }
 
     /**
      * Convert this double to the equivalent Erlang external representation.
-     * 
+     *
      * @param buf
-     *                an output stream to which the encoded value should be
-     *                written.
+     *            an output stream to which the encoded value should be written.
      */
     @Override
     public void encode(final OtpOutputStream buf) {
-	buf.write_double(d);
+        buf.write_double(d);
     }
 
     /**
      * Determine if two floats are equal. Floats are equal if they contain the
      * same value.
-     * 
+     *
      * @param o
-     *                the float to compare to.
-     * 
+     *            the float to compare to.
+     *
      * @return true if the floats have the same value.
      */
     @Override
     public boolean equals(final Object o) {
-	if (!(o instanceof OtpErlangDouble)) {
-	    return false;
-	}
+        if (!(o instanceof OtpErlangDouble)) {
+            return false;
+        }
 
-	final OtpErlangDouble other = (OtpErlangDouble) o;
-	return this.d == other.d;
+        final OtpErlangDouble other = (OtpErlangDouble) o;
+        return d == other.d;
     }
-    
+
     @Override
     protected int doHashCode() {
-	Double v = new Double(d);
-	return v.hashCode();
+        final Double v = new Double(d);
+        return v.hashCode();
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangException.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangException.java
index 5b111a56a8..2e250488fa 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangException.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangException.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -28,13 +28,13 @@ public class OtpErlangException extends OtpException {
      * Provides no message.
      */
     public OtpErlangException() {
-	super();
+        super();
     }
 
     /**
      * Provides a detailed message.
      */
     public OtpErlangException(final String msg) {
-	super(msg);
+        super(msg);
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangExit.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangExit.java
index 6b9015c0e5..f4c6f21207 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangExit.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangExit.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -21,13 +21,13 @@ package com.ericsson.otp.erlang;
 /**
  * Exception raised when a communication channel is broken. This can be caused
  * for a number of reasons, for example:
- * 
+ *
  * <ul>
- * <li> an error in communication has occurred
- * <li> a remote process has sent an exit signal
- * <li> a linked process has exited
+ * <li>an error in communication has occurred
+ * <li>a remote process has sent an exit signal
+ * <li>a linked process has exited
  * </ul>
- * 
+ *
  * @see OtpConnection
  */
 
@@ -39,13 +39,13 @@ public class OtpErlangExit extends OtpErlangException {
 
     /**
      * Create an OtpErlangExit exception with the given reason.
-     * 
+     *
      * @param reason
-     *                the reason this exit signal has been sent.
+     *            the reason this exit signal has been sent.
      */
     public OtpErlangExit(final OtpErlangObject reason) {
-	super(reason.toString());
-	this.reason = reason;
+        super(reason.toString());
+        this.reason = reason;
     }
 
     /**
@@ -53,29 +53,29 @@ public class OtpErlangExit extends OtpErlangException {
      * Equivalent to <code>OtpErlangExit(new
      * OtpErlangAtom(reason)</code>.
      * </p>
-     * 
+     *
      * @param reason
-     *                the reason this exit signal has been sent.
-     * 
+     *            the reason this exit signal has been sent.
+     *
      * @see #OtpErlangExit(OtpErlangObject)
      */
     public OtpErlangExit(final String reason) {
-	this(new OtpErlangAtom(reason));
+        this(new OtpErlangAtom(reason));
     }
 
     /**
      * Create an OtpErlangExit exception with the given reason and sender pid.
-     * 
+     *
      * @param reason
-     *                the reason this exit signal has been sent.
-     * 
+     *            the reason this exit signal has been sent.
+     *
      * @param pid
-     *                the pid that sent this exit.
+     *            the pid that sent this exit.
      */
     public OtpErlangExit(final OtpErlangObject reason, final OtpErlangPid pid) {
-	super(reason.toString());
-	this.reason = reason;
-	this.pid = pid;
+        super(reason.toString());
+        this.reason = reason;
+        this.pid = pid;
     }
 
     /**
@@ -83,30 +83,30 @@ public class OtpErlangExit extends OtpErlangException {
      * Equivalent to <code>OtpErlangExit(new OtpErlangAtom(reason),
      * pid)</code>.
      * </p>
-     * 
+     *
      * @param reason
-     *                the reason this exit signal has been sent.
-     * 
+     *            the reason this exit signal has been sent.
+     *
      * @param pid
-     *                the pid that sent this exit.
-     * 
+     *            the pid that sent this exit.
+     *
      * @see #OtpErlangExit(OtpErlangObject, OtpErlangPid)
      */
     public OtpErlangExit(final String reason, final OtpErlangPid pid) {
-	this(new OtpErlangAtom(reason), pid);
+        this(new OtpErlangAtom(reason), pid);
     }
 
     /**
      * Get the reason associated with this exit signal.
      */
     public OtpErlangObject reason() {
-	return reason;
+        return reason;
     }
 
     /**
      * Get the pid that sent this exit.
      */
     public OtpErlangPid pid() {
-	return pid;
+        return pid;
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangExternalFun.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangExternalFun.java
index 09f36b1ff4..80751cae53 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangExternalFun.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangExternalFun.java
@@ -1,20 +1,20 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
- * %CopyrightEnd% 
+ *
+ * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
@@ -27,47 +27,47 @@ public class OtpErlangExternalFun extends OtpErlangObject {
     private final int arity;
 
     public OtpErlangExternalFun(final String module, final String function,
-	    final int arity) {
-	super();
-	this.module = module;
-	this.function = function;
-	this.arity = arity;
+            final int arity) {
+        super();
+        this.module = module;
+        this.function = function;
+        this.arity = arity;
     }
 
     public OtpErlangExternalFun(final OtpInputStream buf)
-	    throws OtpErlangDecodeException {
-	final OtpErlangExternalFun f = buf.read_external_fun();
-	module = f.module;
-	function = f.function;
-	arity = f.arity;
+            throws OtpErlangDecodeException {
+        final OtpErlangExternalFun f = buf.read_external_fun();
+        module = f.module;
+        function = f.function;
+        arity = f.arity;
     }
 
     @Override
     public void encode(final OtpOutputStream buf) {
-	buf.write_external_fun(module, function, arity);
+        buf.write_external_fun(module, function, arity);
     }
 
     @Override
     public boolean equals(final Object o) {
-	if (!(o instanceof OtpErlangExternalFun)) {
-	    return false;
-	}
-	final OtpErlangExternalFun f = (OtpErlangExternalFun) o;
-	return module.equals(f.module) && function.equals(f.function)
-		&& arity == f.arity;
+        if (!(o instanceof OtpErlangExternalFun)) {
+            return false;
+        }
+        final OtpErlangExternalFun f = (OtpErlangExternalFun) o;
+        return module.equals(f.module) && function.equals(f.function)
+                && arity == f.arity;
     }
 
     @Override
     protected int doHashCode() {
-	OtpErlangObject.Hash hash = new OtpErlangObject.Hash(14);
-	hash.combine(module.hashCode(), function.hashCode());
-	hash.combine(arity);
-	return hash.valueOf();
+        final OtpErlangObject.Hash hash = new OtpErlangObject.Hash(14);
+        hash.combine(module.hashCode(), function.hashCode());
+        hash.combine(arity);
+        return hash.valueOf();
     }
-    
+
     @Override
     public String toString() {
-	return "#Fun<" + module + "." + function + "." + arity + ">";
+        return "#Fun<" + module + "." + function + "." + arity + ">";
     }
 
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangFloat.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangFloat.java
index 7d48f848f0..6dcf3e7c3a 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangFloat.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangFloat.java
@@ -1,24 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
-
 /**
  * Provides a Java representation of Erlang floats and doubles.
  */
@@ -30,27 +29,27 @@ public class OtpErlangFloat extends OtpErlangDouble {
      * Create an Erlang float from the given float value.
      */
     public OtpErlangFloat(final float f) {
-	super(f);
+        super(f);
     }
 
     /**
      * Create an Erlang float from a stream containing a float encoded in Erlang
      * external format.
-     * 
+     *
      * @param buf
-     *                the stream containing the encoded value.
-     * 
+     *            the stream containing the encoded value.
+     *
      * @exception OtpErlangDecodeException
-     *                    if the buffer does not contain a valid external
-     *                    representation of an Erlang float.
-     * 
+     *                if the buffer does not contain a valid external
+     *                representation of an Erlang float.
+     *
      * @exception OtpErlangRangeException
-     *                    if the value cannot be represented as a Java float.
+     *                if the value cannot be represented as a Java float.
      */
     public OtpErlangFloat(final OtpInputStream buf)
-	    throws OtpErlangDecodeException, OtpErlangRangeException {
-	super(buf);
+            throws OtpErlangDecodeException, OtpErlangRangeException {
+        super(buf);
 
-    floatValue();
+        floatValue();
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangFun.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangFun.java
index 05fa0cbb23..2de284029b 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangFun.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangFun.java
@@ -1,20 +1,20 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
- * %CopyrightEnd% 
+ *
+ * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
@@ -34,97 +34,97 @@ public class OtpErlangFun extends OtpErlangObject {
     private final byte[] md5;
 
     public OtpErlangFun(final OtpInputStream buf)
-	    throws OtpErlangDecodeException {
-	final OtpErlangFun f = buf.read_fun();
-	pid = f.pid;
-	module = f.module;
-	arity = f.arity;
-	md5 = f.md5;
-	index = f.index;
-	old_index = f.old_index;
-	uniq = f.uniq;
-	freeVars = f.freeVars;
+            throws OtpErlangDecodeException {
+        final OtpErlangFun f = buf.read_fun();
+        pid = f.pid;
+        module = f.module;
+        arity = f.arity;
+        md5 = f.md5;
+        index = f.index;
+        old_index = f.old_index;
+        uniq = f.uniq;
+        freeVars = f.freeVars;
     }
 
     public OtpErlangFun(final OtpErlangPid pid, final String module,
-	    final long index, final long uniq, final OtpErlangObject[] freeVars) {
-	this.pid = pid;
-	this.module = module;
-	arity = -1;
-	md5 = null;
-	this.index = index;
-	old_index = 0;
-	this.uniq = uniq;
-	this.freeVars = freeVars;
+            final long index, final long uniq, final OtpErlangObject[] freeVars) {
+        this.pid = pid;
+        this.module = module;
+        arity = -1;
+        md5 = null;
+        this.index = index;
+        old_index = 0;
+        this.uniq = uniq;
+        this.freeVars = freeVars;
     }
 
     public OtpErlangFun(final OtpErlangPid pid, final String module,
-	    final int arity, final byte[] md5, final int index,
-	    final long old_index, final long uniq,
-	    final OtpErlangObject[] freeVars) {
-	this.pid = pid;
-	this.module = module;
-	this.arity = arity;
-	this.md5 = md5;
-	this.index = index;
-	this.old_index = old_index;
-	this.uniq = uniq;
-	this.freeVars = freeVars;
+            final int arity, final byte[] md5, final int index,
+            final long old_index, final long uniq,
+            final OtpErlangObject[] freeVars) {
+        this.pid = pid;
+        this.module = module;
+        this.arity = arity;
+        this.md5 = md5;
+        this.index = index;
+        this.old_index = old_index;
+        this.uniq = uniq;
+        this.freeVars = freeVars;
     }
 
     @Override
     public void encode(final OtpOutputStream buf) {
-	buf
-		.write_fun(pid, module, old_index, arity, md5, index, uniq,
-			freeVars);
+        buf.write_fun(pid, module, old_index, arity, md5, index, uniq, freeVars);
     }
 
     @Override
     public boolean equals(final Object o) {
-	if (!(o instanceof OtpErlangFun)) {
-	    return false;
-	}
-	final OtpErlangFun f = (OtpErlangFun) o;
-	if (!pid.equals(f.pid) || !module.equals(f.module) || arity != f.arity) {
-	    return false;
-	}
-	if (md5 == null) {
-	    if (f.md5 != null) {
-		return false;
-	    }
-	} else {
-	    if (!Arrays.equals(md5, f.md5)) {
-		return false;
-	    }
-	}
-	if (index != f.index || uniq != f.uniq) {
-	    return false;
-	}
-	if (freeVars == null) {
-	    return f.freeVars == null;
-	}
-	return Arrays.equals(freeVars, f.freeVars);
+        if (!(o instanceof OtpErlangFun)) {
+            return false;
+        }
+        final OtpErlangFun f = (OtpErlangFun) o;
+        if (!pid.equals(f.pid) || !module.equals(f.module) || arity != f.arity) {
+            return false;
+        }
+        if (md5 == null) {
+            if (f.md5 != null) {
+                return false;
+            }
+        } else {
+            if (!Arrays.equals(md5, f.md5)) {
+                return false;
+            }
+        }
+        if (index != f.index || uniq != f.uniq) {
+            return false;
+        }
+        if (freeVars == null) {
+            return f.freeVars == null;
+        }
+        return Arrays.equals(freeVars, f.freeVars);
     }
-    
+
     @Override
     protected int doHashCode() {
-	OtpErlangObject.Hash hash = new OtpErlangObject.Hash(1);
-	hash.combine(pid.hashCode(), module.hashCode());
-	hash.combine(arity);
-	if (md5 != null) hash.combine(md5);
-	hash.combine(index);
-	hash.combine(uniq);
-	if (freeVars != null) {
-	    for (OtpErlangObject o: freeVars) {
-		hash.combine(o.hashCode(), 1);
-	    }
-	}
-	return hash.valueOf();
+        final OtpErlangObject.Hash hash = new OtpErlangObject.Hash(1);
+        hash.combine(pid.hashCode(), module.hashCode());
+        hash.combine(arity);
+        if (md5 != null) {
+            hash.combine(md5);
+        }
+        hash.combine(index);
+        hash.combine(uniq);
+        if (freeVars != null) {
+            for (final OtpErlangObject o : freeVars) {
+                hash.combine(o.hashCode(), 1);
+            }
+        }
+        return hash.valueOf();
     }
-    
+
     @Override
     public String toString() {
-	return "#Fun<" + module + "." + old_index + "." + uniq + ">";
+        return "#Fun<" + module + "." + old_index + "." + uniq + ">";
     }
 
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangInt.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangInt.java
index 741fc29dd0..628e3f6e6e 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangInt.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangInt.java
@@ -1,24 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
-
 /**
  * Provides a Java representation of Erlang integral types.
  */
@@ -28,32 +27,32 @@ public class OtpErlangInt extends OtpErlangLong {
 
     /**
      * Create an Erlang integer from the given value.
-     * 
+     *
      * @param i
-     *                the int value to use.
+     *            the int value to use.
      */
     public OtpErlangInt(final int i) {
-	super(i);
+        super(i);
     }
 
     /**
      * Create an Erlang integer from a stream containing an integer encoded in
      * Erlang external format.
-     * 
+     *
      * @param buf
-     *                the stream containing the encoded value.
-     * 
+     *            the stream containing the encoded value.
+     *
      * @exception OtpErlangDecodeException
-     *                    if the buffer does not contain a valid external
-     *                    representation of an Erlang integer.
-     * 
+     *                if the buffer does not contain a valid external
+     *                representation of an Erlang integer.
+     *
      * @exception OtpErlangRangeException
-     *                    if the value is too large to be represented as an int.
+     *                if the value is too large to be represented as an int.
      */
     public OtpErlangInt(final OtpInputStream buf)
-	    throws OtpErlangRangeException, OtpErlangDecodeException {
-	super(buf);
+            throws OtpErlangRangeException, OtpErlangDecodeException {
+        super(buf);
 
-    intValue();
+        intValue();
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangList.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangList.java
index 9f7c5f5499..268261ec10 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangList.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangList.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -24,12 +24,12 @@ import java.util.NoSuchElementException;
 /**
  * Provides a Java representation of Erlang lists. Lists are created from zero
  * or more arbitrary Erlang terms.
- * 
+ *
  * <p>
  * The arity of the list is the number of elements it contains.
  */
 public class OtpErlangList extends OtpErlangObject implements
-    Iterable<OtpErlangObject> {
+        Iterable<OtpErlangObject> {
     // don't change this!
     private static final long serialVersionUID = 5999112769036676548L;
 
@@ -43,69 +43,69 @@ public class OtpErlangList extends OtpErlangObject implements
      * Create an empty list.
      */
     public OtpErlangList() {
-	elems = NO_ELEMENTS;
+        elems = NO_ELEMENTS;
     }
 
     /**
-     * Create a list of Erlang integers representing Unicode codePoints.
-     * This method does not check if the string contains valid code points.
-     * 
+     * Create a list of Erlang integers representing Unicode codePoints. This
+     * method does not check if the string contains valid code points.
+     *
      * @param str
      *            the characters from which to create the list.
      */
     public OtpErlangList(final String str) {
-	if (str == null || str.length() == 0) {
-	    elems = NO_ELEMENTS;
-	} else {
-	    final int[] codePoints = OtpErlangString.stringToCodePoints(str);
-	    elems = new OtpErlangObject[codePoints.length];
-	    for (int i = 0;  i < elems.length;  i++) {
-		elems[i] = new OtpErlangInt(codePoints[i]);
-	    }
-	}
+        if (str == null || str.length() == 0) {
+            elems = NO_ELEMENTS;
+        } else {
+            final int[] codePoints = OtpErlangString.stringToCodePoints(str);
+            elems = new OtpErlangObject[codePoints.length];
+            for (int i = 0; i < elems.length; i++) {
+                elems[i] = new OtpErlangInt(codePoints[i]);
+            }
+        }
     }
 
     /**
      * Create a list containing one element.
-     * 
+     *
      * @param elem
      *            the elememet to make the list from.
      */
     public OtpErlangList(final OtpErlangObject elem) {
-	elems = new OtpErlangObject[] { elem };
+        elems = new OtpErlangObject[] { elem };
     }
 
     /**
      * Create a list from an array of arbitrary Erlang terms.
-     * 
+     *
      * @param elems
      *            the array of terms from which to create the list.
      */
     public OtpErlangList(final OtpErlangObject[] elems) {
-	this(elems, 0, elems.length);
+        this(elems, 0, elems.length);
     }
 
     /**
      * Create a list from an array of arbitrary Erlang terms. Tail can be
      * specified, if not null, the list will not be proper.
-     * 
+     *
      * @param elems
      *            array of terms from which to create the list
      * @param lastTail
      * @throws OtpErlangException
      */
     public OtpErlangList(final OtpErlangObject[] elems,
-	    final OtpErlangObject lastTail) throws OtpErlangException {
-	this(elems, 0, elems.length);
-	if (elems.length == 0 && lastTail != null) {
-	    throw new OtpErlangException("Bad list, empty head, non-empty tail");
-	}
-	this.lastTail = lastTail;
+            final OtpErlangObject lastTail) throws OtpErlangException {
+        this(elems, 0, elems.length);
+        if (elems.length == 0 && lastTail != null) {
+            throw new OtpErlangException("Bad list, empty head, non-empty tail");
+        }
+        this.lastTail = lastTail;
     }
 
     /**
      * Create a list from an array of arbitrary Erlang terms.
-     * 
+     *
      * @param elems
      *            the array of terms from which to create the list.
      * @param start
@@ -114,152 +114,152 @@ public class OtpErlangList extends OtpErlangObject implements
      *            the number of terms to insert.
      */
     public OtpErlangList(final OtpErlangObject[] elems, final int start,
-	    final int count) {
-	if (elems != null && count > 0) {
-	    this.elems = new OtpErlangObject[count];
-	    System.arraycopy(elems, start, this.elems, 0, count);
-	} else {
-	    this.elems = NO_ELEMENTS;
-	}
+            final int count) {
+        if (elems != null && count > 0) {
+            this.elems = new OtpErlangObject[count];
+            System.arraycopy(elems, start, this.elems, 0, count);
+        } else {
+            this.elems = NO_ELEMENTS;
+        }
     }
 
     /**
      * Create a list from a stream containing an list encoded in Erlang external
      * format.
-     * 
+     *
      * @param buf
      *            the stream containing the encoded list.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the buffer does not contain a valid external
      *                representation of an Erlang list.
      */
     public OtpErlangList(final OtpInputStream buf)
-	    throws OtpErlangDecodeException {
-	final int arity = buf.read_list_head();
-	if (arity > 0) {
-	    elems = new OtpErlangObject[arity];
-	    for (int i = 0; i < arity; i++) {
-		elems[i] = buf.read_any();
-	    }
-	    /* discard the terminating nil (empty list) or read tail */
-	    if (buf.peek1() == OtpExternal.nilTag) {
-		buf.read_nil();
-	    } else {
-		lastTail = buf.read_any();
-	    }
-	} else {
-	    elems = NO_ELEMENTS;
-	}
+            throws OtpErlangDecodeException {
+        final int arity = buf.read_list_head();
+        if (arity > 0) {
+            elems = new OtpErlangObject[arity];
+            for (int i = 0; i < arity; i++) {
+                elems[i] = buf.read_any();
+            }
+            /* discard the terminating nil (empty list) or read tail */
+            if (buf.peek1() == OtpExternal.nilTag) {
+                buf.read_nil();
+            } else {
+                lastTail = buf.read_any();
+            }
+        } else {
+            elems = NO_ELEMENTS;
+        }
     }
 
     /**
      * Get the arity of the list.
-     * 
+     *
      * @return the number of elements contained in the list.
      */
     public int arity() {
-	return elems.length;
+        return elems.length;
     }
 
     /**
      * Get the specified element from the list.
-     * 
+     *
      * @param i
      *            the index of the requested element. List elements are numbered
      *            as array elements, starting at 0.
-     * 
+     *
      * @return the requested element, of null if i is not a valid element index.
      */
     public OtpErlangObject elementAt(final int i) {
-	if (i >= arity() || i < 0) {
-	    return null;
-	}
-	return elems[i];
+        if (i >= arity() || i < 0) {
+            return null;
+        }
+        return elems[i];
     }
 
     /**
      * Get all the elements from the list as an array.
-     * 
+     *
      * @return an array containing all of the list's elements.
      */
     public OtpErlangObject[] elements() {
-	if (arity() == 0) {
-	    return NO_ELEMENTS;
+        if (arity() == 0) {
+            return NO_ELEMENTS;
+        }
+        final OtpErlangObject[] res = new OtpErlangObject[arity()];
+        System.arraycopy(elems, 0, res, 0, res.length);
+        return res;
     }
-	    final OtpErlangObject[] res = new OtpErlangObject[arity()];
-	    System.arraycopy(elems, 0, res, 0, res.length);
-	    return res;
-	}
 
     /**
      * Get the string representation of the list.
-     * 
+     *
      * @return the string representation of the list.
      */
 
     @Override
     public String toString() {
-	return toString(0);
+        return toString(0);
     }
 
     protected String toString(final int start) {
-	final StringBuffer s = new StringBuffer();
-	s.append("[");
-
-	for (int i = start; i < arity(); i++) {
-	    if (i > start) {
-		s.append(",");
-	    }
-	    s.append(elems[i].toString());
-	}
-	if (lastTail != null) {
-	    s.append("|").append(lastTail.toString());
-	}
-	s.append("]");
-
-	return s.toString();
+        final StringBuffer s = new StringBuffer();
+        s.append("[");
+
+        for (int i = start; i < arity(); i++) {
+            if (i > start) {
+                s.append(",");
+            }
+            s.append(elems[i].toString());
+        }
+        if (lastTail != null) {
+            s.append("|").append(lastTail.toString());
+        }
+        s.append("]");
+
+        return s.toString();
     }
 
     /**
      * Convert this list to the equivalent Erlang external representation. Note
      * that this method never encodes lists as strings, even when it is possible
      * to do so.
-     * 
+     *
      * @param buf
      *            An output stream to which the encoded list should be written.
-     * 
+     *
      */
 
     @Override
     public void encode(final OtpOutputStream buf) {
-	encode(buf, 0);
+        encode(buf, 0);
     }
 
     protected void encode(final OtpOutputStream buf, final int start) {
-	final int arity = arity() - start;
-
-	if (arity > 0) {
-	    buf.write_list_head(arity);
-
-	    for (int i = start; i < arity + start; i++) {
-		buf.write_any(elems[i]);
-	    }
-	}
-	if (lastTail == null) {
-	    buf.write_nil();
-	} else {
-	    buf.write_any(lastTail);
-	}
+        final int arity = arity() - start;
+
+        if (arity > 0) {
+            buf.write_list_head(arity);
+
+            for (int i = start; i < arity + start; i++) {
+                buf.write_any(elems[i]);
+            }
+        }
+        if (lastTail == null) {
+            buf.write_nil();
+        } else {
+            buf.write_any(lastTail);
+        }
     }
 
     /**
      * Determine if two lists are equal. Lists are equal if they have the same
      * arity and all of the elements are equal.
-     * 
+     *
      * @param o
      *            the list to compare to.
-     * 
+     *
      * @return true if the lists have the same arity and all the elements are
      *         equal.
      */
@@ -267,236 +267,282 @@ public class OtpErlangList extends OtpErlangObject implements
     @Override
     public boolean equals(final Object o) {
 
-	/*
-	 * Be careful to use methods even for "this", so that equals work also
-	 * for sublists
-	 */
-
-	if (!(o instanceof OtpErlangList)) {
-	    return false;
-	}
-
-	final OtpErlangList l = (OtpErlangList) o;
-
-	final int a = arity();
-	if (a != l.arity()) {
-	    return false;
-	}
-	for (int i = 0; i < a; i++) {
-	    if (!elementAt(i).equals(l.elementAt(i))) {
-		return false; // early exit
-	    }
-	}
-	final OtpErlangObject otherTail = l.getLastTail();
-	if (getLastTail() == null && otherTail == null) {
-	    return true;
-	}
-	if (getLastTail() == null) {
-	    return false;
-	}
-	return getLastTail().equals(l.getLastTail());
+        /*
+         * Be careful to use methods even for "this", so that equals work also
+         * for sublists
+         */
+
+        if (!(o instanceof OtpErlangList)) {
+            return false;
+        }
+
+        final OtpErlangList l = (OtpErlangList) o;
+
+        final int a = arity();
+        if (a != l.arity()) {
+            return false;
+        }
+        for (int i = 0; i < a; i++) {
+            if (!elementAt(i).equals(l.elementAt(i))) {
+                return false; // early exit
+            }
+        }
+        final OtpErlangObject otherTail = l.getLastTail();
+        if (getLastTail() == null && otherTail == null) {
+            return true;
+        }
+        if (getLastTail() == null) {
+            return false;
+        }
+        return getLastTail().equals(l.getLastTail());
+    }
+
+    @Override
+    public <T> boolean match(final OtpErlangObject term, final T bindings) {
+        if (!(term instanceof OtpErlangList)) {
+            return false;
+        }
+        final OtpErlangList that = (OtpErlangList) term;
+
+        final int thisArity = this.arity();
+        final int thatArity = that.arity();
+        final OtpErlangObject thisTail = this.getLastTail();
+        final OtpErlangObject thatTail = that.getLastTail();
+
+        if (thisTail == null) {
+            if (thisArity != thatArity || thatTail != null) {
+                return false;
+            }
+        } else {
+            if (thisArity > thatArity) {
+                return false;
+            }
+        }
+        for (int i = 0; i < thisArity; i++) {
+            if (!elementAt(i).match(that.elementAt(i), bindings)) {
+                return false;
+            }
+        }
+        if (thisTail == null) {
+            return true;
+        }
+        return thisTail.match(that.getNthTail(thisArity), bindings);
+    }
+
+    @Override
+    public <T> OtpErlangObject bind(final T binds) throws OtpErlangException {
+        final OtpErlangList list = (OtpErlangList) this.clone();
+
+        final int a = list.elems.length;
+        for (int i = 0; i < a; i++) {
+            list.elems[i] = list.elems[i].bind(binds);
+        }
+
+        if (list.lastTail != null) {
+            list.lastTail = list.lastTail.bind(binds);
+        }
+
+        return list;
     }
 
     public OtpErlangObject getLastTail() {
-	return lastTail;
+        return lastTail;
     }
-    
+
     @Override
     protected int doHashCode() {
-	OtpErlangObject.Hash hash = new OtpErlangObject.Hash(4);
-	final int a = arity();
-	if (a == 0) {
-	    return (int)3468870702L;
-	}
-	for (int i = 0; i < a; i++) {
-	    hash.combine(elementAt(i).hashCode());
-	}
-	final OtpErlangObject t = getLastTail();
-	if (t != null) {
-	    int h = t.hashCode();
-	    hash.combine(h, h);
-	}
-	return hash.valueOf();
+        final OtpErlangObject.Hash hash = new OtpErlangObject.Hash(4);
+        final int a = arity();
+        if (a == 0) {
+            return (int) 3468870702L;
+        }
+        for (int i = 0; i < a; i++) {
+            hash.combine(elementAt(i).hashCode());
+        }
+        final OtpErlangObject t = getLastTail();
+        if (t != null) {
+            final int h = t.hashCode();
+            hash.combine(h, h);
+        }
+        return hash.valueOf();
     }
-    
+
     @Override
     public Object clone() {
-	try {
-	    return new OtpErlangList(elements(), getLastTail());
-	} catch (final OtpErlangException e) {
-			throw new AssertionError(this);
-	}
+        try {
+            return new OtpErlangList(elements(), getLastTail());
+        } catch (final OtpErlangException e) {
+            throw new AssertionError(this);
+        }
     }
 
     public Iterator<OtpErlangObject> iterator() {
-	return iterator(0);
+        return iterator(0);
     }
 
     private Iterator<OtpErlangObject> iterator(final int start) {
-	return new Itr(start);
+        return new Itr(start);
     }
 
     /**
      * @return true if the list is proper, i.e. the last tail is nil
      */
     public boolean isProper() {
-	return lastTail == null;
+        return lastTail == null;
     }
 
     public OtpErlangObject getHead() {
-	if (arity() > 0) {
-	    return elems[0];
-	}
-	return null;
+        if (arity() > 0) {
+            return elems[0];
+        }
+        return null;
     }
 
     public OtpErlangObject getTail() {
-	return getNthTail(1);
+        return getNthTail(1);
     }
 
     public OtpErlangObject getNthTail(final int n) {
-	final int arity = arity();
-	if (arity >= n) {
-	    if (arity == n && lastTail != null) {
-		return lastTail;
-	    }
-        return new SubList(this, n);
-	}
-	return null;
+        final int arity = arity();
+        if (arity >= n) {
+            if (arity == n && lastTail != null) {
+                return lastTail;
+            }
+            return new SubList(this, n);
+        }
+        return null;
     }
 
     /**
-     * Convert a list of integers into a Unicode string,
-     * interpreting each integer as a Unicode code point value.
-     * 
-     * @return A java.lang.String object created through its
-     *         constructor String(int[], int, int).
+     * Convert a list of integers into a Unicode string, interpreting each
+     * integer as a Unicode code point value.
+     *
+     * @return A java.lang.String object created through its constructor
+     *         String(int[], int, int).
      *
      * @exception OtpErlangException
-     *                    for non-proper and non-integer lists.
+     *                for non-proper and non-integer lists.
      *
      * @exception OtpErlangRangeException
-     *                    if any integer does not fit into a Java int.
+     *                if any integer does not fit into a Java int.
      *
      * @exception java.security.InvalidParameterException
-     *                    if any integer is not within the Unicode range.
+     *                if any integer is not within the Unicode range.
      *
      * @see String#String(int[], int, int)
      *
      */
 
     public String stringValue() throws OtpErlangException {
-	if (! isProper()) {
-	    throw new OtpErlangException("Non-proper list: " + this);
-	}
-	final int[] values = new int[arity()];
-	for (int i = 0; i < values.length; ++i) {
-	    final OtpErlangObject o = elementAt(i);
-	    if (! (o instanceof OtpErlangLong)) {
-		throw new OtpErlangException("Non-integer term: " + o);
-	    }
-	    final OtpErlangLong l = (OtpErlangLong) o;
-	    values[i] = l.intValue();
-	}
-	return new String(values, 0, values.length);
+        if (!isProper()) {
+            throw new OtpErlangException("Non-proper list: " + this);
+        }
+        final int[] values = new int[arity()];
+        for (int i = 0; i < values.length; ++i) {
+            final OtpErlangObject o = elementAt(i);
+            if (!(o instanceof OtpErlangLong)) {
+                throw new OtpErlangException("Non-integer term: " + o);
+            }
+            final OtpErlangLong l = (OtpErlangLong) o;
+            values[i] = l.intValue();
+        }
+        return new String(values, 0, values.length);
     }
 
-
-
     public static class SubList extends OtpErlangList {
-	private static final long serialVersionUID = OtpErlangList.serialVersionUID;
-
-	private final int start;
-
-	private final OtpErlangList parent;
-
-	private SubList(final OtpErlangList parent, final int start) {
-	    super();
-	    this.parent = parent;
-	    this.start = start;
-	}
-
-	@Override
-	public int arity() {
-	    return parent.arity() - start;
-	}
-
-	@Override
-	public OtpErlangObject elementAt(final int i) {
-	    return parent.elementAt(i + start);
-	}
-
-	@Override
-	public OtpErlangObject[] elements() {
-	    final int n = parent.arity() - start;
-	    final OtpErlangObject[] res = new OtpErlangObject[n];
-	    for (int i = 0; i < res.length; i++) {
-		res[i] = parent.elementAt(i + start);
-	    }
-	    return res;
-	}
-
-	@Override
-	public boolean isProper() {
-	    return parent.isProper();
-	}
-
-	@Override
-	public OtpErlangObject getHead() {
-	    return parent.elementAt(start);
-	}
-
-	@Override
-	public OtpErlangObject getNthTail(final int n) {
-	    return parent.getNthTail(n + start);
-	}
-
-	@Override
-	public String toString() {
-	    return parent.toString(start);
-	}
-
-	@Override
-	public void encode(final OtpOutputStream stream) {
-	    parent.encode(stream, start);
-	}
-
-	@Override
-	public OtpErlangObject getLastTail() {
-	    return parent.getLastTail();
-	}
-
-	@Override
-	public Iterator<OtpErlangObject> iterator() {
-	    return parent.iterator(start);
-	}
+        private static final long serialVersionUID = OtpErlangList.serialVersionUID;
+
+        private final int start;
+
+        private final OtpErlangList parent;
+
+        private SubList(final OtpErlangList parent, final int start) {
+            super();
+            this.parent = parent;
+            this.start = start;
+        }
+
+        @Override
+        public int arity() {
+            return parent.arity() - start;
+        }
+
+        @Override
+        public OtpErlangObject elementAt(final int i) {
+            return parent.elementAt(i + start);
+        }
+
+        @Override
+        public OtpErlangObject[] elements() {
+            final int n = parent.arity() - start;
+            final OtpErlangObject[] res = new OtpErlangObject[n];
+            for (int i = 0; i < res.length; i++) {
+                res[i] = parent.elementAt(i + start);
+            }
+            return res;
+        }
+
+        @Override
+        public boolean isProper() {
+            return parent.isProper();
+        }
+
+        @Override
+        public OtpErlangObject getHead() {
+            return parent.elementAt(start);
+        }
+
+        @Override
+        public OtpErlangObject getNthTail(final int n) {
+            return parent.getNthTail(n + start);
+        }
+
+        @Override
+        public String toString() {
+            return parent.toString(start);
+        }
+
+        @Override
+        public void encode(final OtpOutputStream stream) {
+            parent.encode(stream, start);
+        }
+
+        @Override
+        public OtpErlangObject getLastTail() {
+            return parent.getLastTail();
+        }
+
+        @Override
+        public Iterator<OtpErlangObject> iterator() {
+            return parent.iterator(start);
+        }
     }
 
     private class Itr implements Iterator<OtpErlangObject> {
-	/**
-	 * Index of element to be returned by subsequent call to next.
-	 */
-	private int cursor;
-
-	private Itr(final int cursor) {
-	    this.cursor = cursor;
-	}
-
-	public boolean hasNext() {
-	    return cursor < elems.length;
-	}
-
-	public OtpErlangObject next() {
-	    try {
-		return elems[cursor++];
-	    } catch (final IndexOutOfBoundsException e) {
-		throw new NoSuchElementException();
-	    }
-	}
-
-	public void remove() {
-	    throw new UnsupportedOperationException(
-		    "OtpErlangList cannot be modified!");
-	}
+        /**
+         * Index of element to be returned by subsequent call to next.
+         */
+        private int cursor;
+
+        private Itr(final int cursor) {
+            this.cursor = cursor;
+        }
+
+        public boolean hasNext() {
+            return cursor < elems.length;
+        }
+
+        public OtpErlangObject next() {
+            try {
+                return elems[cursor++];
+            } catch (final IndexOutOfBoundsException e) {
+                throw new NoSuchElementException();
+            }
+        }
+
+        public void remove() {
+            throw new UnsupportedOperationException(
+                    "OtpErlangList cannot be modified!");
+        }
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangLong.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangLong.java
index c6021a6ae1..47a691224b 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangLong.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangLong.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -23,11 +23,11 @@ import java.math.BigInteger;
 /**
  * Provides a Java representation of Erlang integral types. Erlang does not
  * distinguish between different integral types, however this class and its
- * subclasses {@link OtpErlangByte}, {@link OtpErlangChar},
- * {@link OtpErlangInt}, and {@link OtpErlangShort} attempt to map the Erlang
- * types onto the various Java integral types. Two additional classes,
- * {@link OtpErlangUInt} and {@link OtpErlangUShort} are provided for Corba
- * compatibility. See the documentation for IC for more information.
+ * subclasses {@link OtpErlangByte}, {@link OtpErlangChar}, {@link OtpErlangInt}
+ * , and {@link OtpErlangShort} attempt to map the Erlang types onto the various
+ * Java integral types. Two additional classes, {@link OtpErlangUInt} and
+ * {@link OtpErlangUShort} are provided for Corba compatibility. See the
+ * documentation for IC for more information.
  */
 public class OtpErlangLong extends OtpErlangObject {
     // don't change this!
@@ -38,354 +38,353 @@ public class OtpErlangLong extends OtpErlangObject {
 
     /**
      * Create an Erlang integer from the given value.
-     * 
+     *
      * @param l
-     *                the long value to use.
+     *            the long value to use.
      */
     public OtpErlangLong(final long l) {
-	val = l;
+        val = l;
     }
 
     /**
      * Create an Erlang integer from the given value.
-     * 
+     *
      * @param v
-     *                the big integer value to use.
+     *            the big integer value to use.
      */
     public OtpErlangLong(final BigInteger v) {
-	if (v == null) {
-	    throw new java.lang.NullPointerException();
-	}
-	if (v.bitLength() < 64) {
-	    val = v.longValue();
-	} else {
-	    bigVal = v;
-	}
+        if (v == null) {
+            throw new java.lang.NullPointerException();
+        }
+        if (v.bitLength() < 64) {
+            val = v.longValue();
+        } else {
+            bigVal = v;
+        }
     }
 
     /**
      * Create an Erlang integer from a stream containing an integer encoded in
      * Erlang external format.
-     * 
+     *
      * @param buf
-     *                the stream containing the encoded value.
-     * 
+     *            the stream containing the encoded value.
+     *
      * @exception OtpErlangDecodeException
-     *                    if the buffer does not contain a valid external
-     *                    representation of an Erlang integer.
+     *                if the buffer does not contain a valid external
+     *                representation of an Erlang integer.
      */
     public OtpErlangLong(final OtpInputStream buf)
-	    throws OtpErlangDecodeException {
-	final byte[] b = buf.read_integer_byte_array();
-	try {
-	    val = OtpInputStream.byte_array_to_long(b, false);
-	} catch (final OtpErlangDecodeException e) {
-	    bigVal = new BigInteger(b);
-	}
+            throws OtpErlangDecodeException {
+        final byte[] b = buf.read_integer_byte_array();
+        try {
+            val = OtpInputStream.byte_array_to_long(b, false);
+        } catch (final OtpErlangDecodeException e) {
+            bigVal = new BigInteger(b);
+        }
     }
 
     /**
      * Get this number as a BigInteger.
-     * 
+     *
      * @return the value of this number, as a BigInteger.
      */
     public BigInteger bigIntegerValue() {
-	if (bigVal != null) {
-	    return bigVal;
-	}
-    return BigInteger.valueOf(val);
+        if (bigVal != null) {
+            return bigVal;
+        }
+        return BigInteger.valueOf(val);
     }
 
     /**
      * Get this number as a long, or rather truncate all but the least
      * significant 64 bits from the 2's complement representation of this number
      * and return them as a long.
-     * 
+     *
      * @return the value of this number, as a long.
      */
     public long longValue() {
-	if (bigVal != null) {
-	    return bigVal.longValue();
-	}
-    return val;
+        if (bigVal != null) {
+            return bigVal.longValue();
+        }
+        return val;
     }
 
     /**
      * Determine if this value can be represented as a long without truncation.
-     * 
+     *
      * @return true if this value fits in a long, false otherwise.
      */
     public boolean isLong() {
-	// To just chech this.bigVal is a wee bit to simple, since
-	// there just might have be a mean bignum that arrived on
-	// a stream, and was a long disguised as more than 8 byte integer.
-	if (bigVal != null) {
-	    return bigVal.bitLength() < 64;
-	}
-	return true;
+        // To just chech this.bigVal is a wee bit to simple, since
+        // there just might have be a mean bignum that arrived on
+        // a stream, and was a long disguised as more than 8 byte integer.
+        if (bigVal != null) {
+            return bigVal.bitLength() < 64;
+        }
+        return true;
     }
 
     /**
      * Determine if this value can be represented as an unsigned long without
      * truncation, that is if the value is non-negative and its bit pattern
      * completely fits in a long.
-     * 
+     *
      * @return true if this value is non-negative and fits in a long false
      *         otherwise.
      */
     public boolean isULong() {
-	// Here we have the same problem as for isLong(), plus
-	// the whole range 1<<63 .. (1<<64-1) is allowed.
-	if (bigVal != null) {
-	    return bigVal.signum() >= 0 && bigVal.bitLength() <= 64;
-	}
-	return val >= 0;
+        // Here we have the same problem as for isLong(), plus
+        // the whole range 1<<63 .. (1<<64-1) is allowed.
+        if (bigVal != null) {
+            return bigVal.signum() >= 0 && bigVal.bitLength() <= 64;
+        }
+        return val >= 0;
     }
 
     /**
      * Returns the number of bits in the minimal two's-complement representation
      * of this BigInteger, excluding a sign bit.
-     * 
+     *
      * @return number of bits in the minimal two's-complement representation of
      *         this BigInteger, excluding a sign bit.
      */
     public int bitLength() {
-	if (bigVal != null) {
-	    return bigVal.bitLength();
-	}
-	if (val == 0 || val == -1) {
-	    return 0;
+        if (bigVal != null) {
+            return bigVal.bitLength();
+        }
+        if (val == 0 || val == -1) {
+            return 0;
+        }
+        // Binary search for bit length
+        int i = 32; // mask length
+        long m = (1L << i) - 1; // AND mask with ones in little end
+        if (val < 0) {
+            m = ~m; // OR mask with ones in big end
+            for (int j = i >> 1; j > 0; j >>= 1) { // mask delta
+                if ((val | m) == val) { // mask >= enough
+                    i -= j;
+                    m >>= j; // try less bits
+                } else {
+                    i += j;
+                    m <<= j; // try more bits
+                }
+            }
+            if ((val | m) != val) {
+                i++; // mask < enough
+            }
+        } else {
+            for (int j = i >> 1; j > 0; j >>= 1) { // mask delta
+                if ((val & m) == val) { // mask >= enough
+                    i -= j;
+                    m >>= j; // try less bits
+                } else {
+                    i += j;
+                    m = m << j | m; // try more bits
+                }
+            }
+            if ((val & m) != val) {
+                i++; // mask < enough
+            }
+        }
+        return i;
     }
-	    // Binary search for bit length
-	    int i = 32; // mask length
-	    long m = (1L << i) - 1; // AND mask with ones in little end
-	    if (val < 0) {
-		m = ~m; // OR mask with ones in big end
-		for (int j = i >> 1; j > 0; j >>= 1) { // mask delta
-		    if ((val | m) == val) { // mask >= enough
-			i -= j;
-			m >>= j; // try less bits
-		    } else {
-			i += j;
-			m <<= j; // try more bits
-		    }
-		}
-		if ((val | m) != val) {
-		    i++; // mask < enough
-		}
-	    } else {
-		for (int j = i >> 1; j > 0; j >>= 1) { // mask delta
-		    if ((val & m) == val) { // mask >= enough
-			i -= j;
-			m >>= j; // try less bits
-		    } else {
-			i += j;
-			m = m << j | m; // try more bits
-		    }
-		}
-		if ((val & m) != val) {
-		    i++; // mask < enough
-		}
-	    }
-	    return i;
-	}
 
     /**
      * Return the signum function of this object.
-     * 
+     *
      * @return -1, 0 or 1 as the value is negative, zero or positive.
      */
     public int signum() {
-	if (bigVal != null) {
-	    return bigVal.signum();
-	}
-    return val > 0 ? 1 : val < 0 ? -1 : 0;
+        if (bigVal != null) {
+            return bigVal.signum();
+        }
+        return val > 0 ? 1 : val < 0 ? -1 : 0;
     }
 
     /**
      * Get this number as an int.
-     * 
+     *
      * @return the value of this number, as an int.
-     * 
+     *
      * @exception OtpErlangRangeException
-     *                    if the value is too large to be represented as an int.
+     *                if the value is too large to be represented as an int.
      */
     public int intValue() throws OtpErlangRangeException {
-	final long l = longValue();
-	final int i = (int) l;
+        final long l = longValue();
+        final int i = (int) l;
 
-	if (i != l) {
-	    throw new OtpErlangRangeException("Value too large for int: " + val);
-	}
+        if (i != l) {
+            throw new OtpErlangRangeException("Value too large for int: " + val);
+        }
 
-	return i;
+        return i;
     }
 
     /**
      * Get this number as a non-negative int.
-     * 
+     *
      * @return the value of this number, as an int.
-     * 
+     *
      * @exception OtpErlangRangeException
-     *                    if the value is too large to be represented as an int,
-     *                    or if the value is negative.
+     *                if the value is too large to be represented as an int, or
+     *                if the value is negative.
      */
     public int uIntValue() throws OtpErlangRangeException {
-	final long l = longValue();
-	final int i = (int) l;
+        final long l = longValue();
+        final int i = (int) l;
 
-	if (i != l) {
-	    throw new OtpErlangRangeException("Value too large for int: " + val);
-	} else if (i < 0) {
-	    throw new OtpErlangRangeException("Value not positive: " + val);
-	}
+        if (i != l) {
+            throw new OtpErlangRangeException("Value too large for int: " + val);
+        } else if (i < 0) {
+            throw new OtpErlangRangeException("Value not positive: " + val);
+        }
 
-	return i;
+        return i;
     }
 
     /**
      * Get this number as a short.
-     * 
+     *
      * @return the value of this number, as a short.
-     * 
+     *
      * @exception OtpErlangRangeException
-     *                    if the value is too large to be represented as a
-     *                    short.
+     *                if the value is too large to be represented as a short.
      */
     public short shortValue() throws OtpErlangRangeException {
-	final long l = longValue();
-	final short i = (short) l;
+        final long l = longValue();
+        final short i = (short) l;
 
-	if (i != l) {
-	    throw new OtpErlangRangeException("Value too large for short: "
-		    + val);
-	}
+        if (i != l) {
+            throw new OtpErlangRangeException("Value too large for short: "
+                    + val);
+        }
 
-	return i;
+        return i;
     }
 
     /**
      * Get this number as a non-negative short.
-     * 
+     *
      * @return the value of this number, as a short.
-     * 
+     *
      * @exception OtpErlangRangeException
-     *                    if the value is too large to be represented as a
-     *                    short, or if the value is negative.
+     *                if the value is too large to be represented as a short, or
+     *                if the value is negative.
      */
     public short uShortValue() throws OtpErlangRangeException {
-	final long l = longValue();
-	final short i = (short) l;
+        final long l = longValue();
+        final short i = (short) l;
 
-	if (i != l) {
-	    throw new OtpErlangRangeException("Value too large for short: "
-		    + val);
-	} else if (i < 0) {
-	    throw new OtpErlangRangeException("Value not positive: " + val);
-	}
+        if (i != l) {
+            throw new OtpErlangRangeException("Value too large for short: "
+                    + val);
+        } else if (i < 0) {
+            throw new OtpErlangRangeException("Value not positive: " + val);
+        }
 
-	return i;
+        return i;
     }
 
     /**
      * Get this number as a char.
-     * 
+     *
      * @return the char value of this number.
-     * 
+     *
      * @exception OtpErlangRangeException
-     *                    if the value is too large to be represented as a char.
+     *                if the value is too large to be represented as a char.
      */
     public char charValue() throws OtpErlangRangeException {
-	final long l = longValue();
-	final char i = (char) l;
+        final long l = longValue();
+        final char i = (char) l;
 
-	if (i != l) {
-	    throw new OtpErlangRangeException("Value too large for char: "
-		    + val);
-	}
+        if (i != l) {
+            throw new OtpErlangRangeException("Value too large for char: "
+                    + val);
+        }
 
-	return i;
+        return i;
     }
 
     /**
      * Get this number as a byte.
-     * 
+     *
      * @return the byte value of this number.
-     * 
+     *
      * @exception OtpErlangRangeException
-     *                    if the value is too large to be represented as a byte.
+     *                if the value is too large to be represented as a byte.
      */
     public byte byteValue() throws OtpErlangRangeException {
-	final long l = longValue();
-	final byte i = (byte) l;
+        final long l = longValue();
+        final byte i = (byte) l;
 
-	if (i != l) {
-	    throw new OtpErlangRangeException("Value too large for byte: "
-		    + val);
-	}
+        if (i != l) {
+            throw new OtpErlangRangeException("Value too large for byte: "
+                    + val);
+        }
 
-	return i;
+        return i;
     }
 
     /**
      * Get the string representation of this number.
-     * 
+     *
      * @return the string representation of this number.
      */
     @Override
     public String toString() {
-	if (bigVal != null) {
-	    return "" + bigVal;
-	}
-    return "" + val;
+        if (bigVal != null) {
+            return "" + bigVal;
+        }
+        return "" + val;
     }
 
     /**
      * Convert this number to the equivalent Erlang external representation.
-     * 
+     *
      * @param buf
-     *                an output stream to which the encoded number should be
-     *                written.
+     *            an output stream to which the encoded number should be
+     *            written.
      */
     @Override
     public void encode(final OtpOutputStream buf) {
-	if (bigVal != null) {
-	    buf.write_big_integer(bigVal);
-	} else {
-	    buf.write_long(val);
-	}
+        if (bigVal != null) {
+            buf.write_big_integer(bigVal);
+        } else {
+            buf.write_long(val);
+        }
     }
 
     /**
      * Determine if two numbers are equal. Numbers are equal if they contain the
      * same value.
-     * 
+     *
      * @param o
-     *                the number to compare to.
-     * 
+     *            the number to compare to.
+     *
      * @return true if the numbers have the same value.
      */
     @Override
     public boolean equals(final Object o) {
-	if (!(o instanceof OtpErlangLong)) {
-	    return false;
-	}
-
-	final OtpErlangLong that = (OtpErlangLong) o;
-
-	if (bigVal != null && that.bigVal != null) {
-	    return bigVal.equals(that.bigVal);
-	} else if (bigVal == null && that.bigVal == null) {
-	    return val == that.val;
-	}
-	return false;
+        if (!(o instanceof OtpErlangLong)) {
+            return false;
+        }
+
+        final OtpErlangLong that = (OtpErlangLong) o;
+
+        if (bigVal != null && that.bigVal != null) {
+            return bigVal.equals(that.bigVal);
+        } else if (bigVal == null && that.bigVal == null) {
+            return val == that.val;
+        }
+        return false;
     }
-    
+
     @Override
     protected int doHashCode() {
-	if (bigVal != null) {
-	    return bigVal.hashCode();
-	}
-    return BigInteger.valueOf(val).hashCode();
+        if (bigVal != null) {
+            return bigVal.hashCode();
+        }
+        return BigInteger.valueOf(val).hashCode();
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangMap.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangMap.java
index 7f1a64b87d..a8cd9d5392 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangMap.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangMap.java
@@ -18,44 +18,52 @@
  */
 package com.ericsson.otp.erlang;
 
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
 
 /**
  * Provides a Java representation of Erlang maps. Maps are created from one or
  * more arbitrary Erlang terms.
- * 
+ *
  * <p>
  * The arity of the map is the number of elements it contains. The keys and
  * values can be retrieved as arrays and the value for a key can be queried.
- * 
+ *
  */
 public class OtpErlangMap extends OtpErlangObject {
     // don't change this!
     private static final long serialVersionUID = -6410770117696198497L;
 
-    private static final OtpErlangObject[] NO_ELEMENTS = new OtpErlangObject[0];
+    private HashMap<OtpErlangObject, OtpErlangObject> map;
 
-    private OtpErlangObject[] keys = NO_ELEMENTS;
-    private OtpErlangObject[] values = NO_ELEMENTS;
+    /**
+     * Create an empty map.
+     */
+    public OtpErlangMap() {
+        map = new HashMap<OtpErlangObject, OtpErlangObject>();
+    }
 
     /**
      * Create a map from an array of keys and an array of values.
-     * 
+     *
      * @param keys
      *            the array of terms to create the map keys from.
      * @param values
      *            the array of terms to create the map values from.
-     * 
+     *
      * @exception java.lang.IllegalArgumentException
      *                if any array is empty (null) or contains null elements.
      */
     public OtpErlangMap(final OtpErlangObject[] keys,
-	    final OtpErlangObject[] values) {
-	this(keys, 0, keys.length, values, 0, values.length);
+            final OtpErlangObject[] values) {
+        this(keys, 0, keys.length, values, 0, values.length);
     }
 
     /**
      * Create a map from an array of terms.
-     * 
+     *
      * @param keys
      *            the array of terms to create the map from.
      * @param kstart
@@ -68,228 +76,280 @@ public class OtpErlangMap extends OtpErlangObject {
      *            the offset of the first value to insert.
      * @param vcount
      *            the number of values to insert.
-     * 
+     *
      * @exception java.lang.IllegalArgumentException
      *                if any array is empty (null) or contains null elements.
      * @exception java.lang.IllegalArgumentException
      *                if kcount and vcount differ.
      */
     public OtpErlangMap(final OtpErlangObject[] keys, final int kstart,
-	    final int kcount, final OtpErlangObject[] values, final int vstart,
-	    final int vcount) {
-	if (keys == null || values == null) {
-	    throw new java.lang.IllegalArgumentException(
-		    "Map content can't be null");
-	} else if (kcount != vcount) {
-	    throw new java.lang.IllegalArgumentException(
-		    "Map keys and values must have same arity");
-	} else if (vcount < 1) {
-	    this.keys = NO_ELEMENTS;
-	    this.values = NO_ELEMENTS;
-	} else {
-	    this.keys = new OtpErlangObject[vcount];
-	    for (int i = 0; i < vcount; i++) {
-		if (keys[kstart + i] != null) {
-		    this.keys[i] = keys[kstart + i];
-		} else {
-		    throw new java.lang.IllegalArgumentException(
-			    "Map key cannot be null (element" + (kstart + i)
-				    + ")");
-		}
-	    }
-	    this.values = new OtpErlangObject[vcount];
-	    for (int i = 0; i < vcount; i++) {
-		if (values[vstart + i] != null) {
-		    this.values[i] = values[vstart + i];
-		} else {
-		    throw new java.lang.IllegalArgumentException(
-			    "Map value cannot be null (element" + (vstart + i)
-				    + ")");
-		}
-	    }
-	}
+            final int kcount, final OtpErlangObject[] values, final int vstart,
+            final int vcount) {
+        if (keys == null || values == null) {
+            throw new java.lang.IllegalArgumentException(
+                    "Map content can't be null");
+        } else if (kcount != vcount) {
+            throw new java.lang.IllegalArgumentException(
+                    "Map keys and values must have same arity");
+        }
+        map = new HashMap<OtpErlangObject, OtpErlangObject>(vcount);
+        OtpErlangObject key, val;
+        for (int i = 0; i < vcount; i++) {
+            if ((key = keys[kstart + i]) == null) {
+                throw new java.lang.IllegalArgumentException(
+                        "Map key cannot be null (element" + (kstart + i) + ")");
+            }
+            if ((val = values[vstart + i]) == null) {
+                throw new java.lang.IllegalArgumentException(
+                        "Map value cannot be null (element" + (vstart + i)
+                                + ")");
+            }
+            put(key, val);
+        }
     }
 
     /**
      * Create a map from a stream containing a map encoded in Erlang external
      * format.
-     * 
+     *
      * @param buf
      *            the stream containing the encoded map.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the buffer does not contain a valid external
      *                representation of an Erlang map.
      */
     public OtpErlangMap(final OtpInputStream buf)
-	    throws OtpErlangDecodeException {
-	final int arity = buf.read_map_head();
-
-	if (arity > 0) {
-	    keys = new OtpErlangObject[arity];
-	    values = new OtpErlangObject[arity];
-
-	    for (int i = 0; i < arity; i++) {
-		keys[i] = buf.read_any();
-		values[i] = buf.read_any();
-	    }
-	} else {
-	    keys = NO_ELEMENTS;
-	    values = NO_ELEMENTS;
-	}
+            throws OtpErlangDecodeException {
+        final int arity = buf.read_map_head();
+
+        if (arity > 0) {
+            map = new HashMap<OtpErlangObject, OtpErlangObject>(arity);
+            for (int i = 0; i < arity; i++) {
+                OtpErlangObject key, val;
+                key = buf.read_any();
+                val = buf.read_any();
+                put(key, val);
+            }
+        } else {
+            map = new HashMap<OtpErlangObject, OtpErlangObject>();
+        }
     }
 
     /**
      * Get the arity of the map.
-     * 
+     *
      * @return the number of elements contained in the map.
      */
     public int arity() {
-	return keys.length;
+        return map.size();
+    }
+
+    /**
+     * Put value corresponding to key into the map. For detailed behavior
+     * description see {@link Map#put(Object, Object)}.
+     *
+     * @param key
+     *            key to associate value with
+     * @param value
+     *            value to associate with key
+     * @return previous value associated with key or null
+     */
+    public OtpErlangObject put(final OtpErlangObject key,
+            final OtpErlangObject value) {
+        return map.put(key, value);
+    }
+
+    /**
+     * removes mapping for the key if present.
+     *
+     * @param key
+     *            key for which mapping is to be remove
+     * @return value associated with key or null
+     */
+    public OtpErlangObject remove(final OtpErlangObject key) {
+        return map.remove(key);
     }
 
     /**
      * Get the specified value from the map.
-     * 
+     *
      * @param key
      *            the key of the requested value.
-     * 
+     *
      * @return the requested value, of null if key is not a valid key.
      */
     public OtpErlangObject get(final OtpErlangObject key) {
-	if (key == null) {
-	    return null;
-	}
-	for (int i = 0; i < keys.length; i++) {
-	    if (key.equals(keys[i])) {
-		return values[i];
-	    }
-	}
-	return null;
+        return map.get(key);
     }
 
     /**
      * Get all the keys from the map as an array.
-     * 
+     *
      * @return an array containing all of the map's keys.
      */
     public OtpErlangObject[] keys() {
-	final OtpErlangObject[] res = new OtpErlangObject[arity()];
-	System.arraycopy(keys, 0, res, 0, res.length);
-	return res;
+        return map.keySet().toArray(new OtpErlangObject[arity()]);
     }
 
     /**
      * Get all the values from the map as an array.
-     * 
+     *
      * @return an array containing all of the map's values.
      */
     public OtpErlangObject[] values() {
-	final OtpErlangObject[] res = new OtpErlangObject[arity()];
-	System.arraycopy(values, 0, res, 0, res.length);
-	return res;
+        return map.values().toArray(new OtpErlangObject[arity()]);
+    }
+
+    /**
+     * make Set view of the map key-value pairs
+     *
+     * @return a set containing key-value pairs
+     */
+    public Set<Entry<OtpErlangObject, OtpErlangObject>> entrySet() {
+        return map.entrySet();
     }
 
     /**
      * Get the string representation of the map.
-     * 
+     *
      * @return the string representation of the map.
      */
     @Override
     public String toString() {
-	int i;
-	final StringBuffer s = new StringBuffer();
-	final int arity = values.length;
+        final StringBuffer s = new StringBuffer();
 
-	s.append("#{");
+        s.append("#{");
 
-	for (i = 0; i < arity; i++) {
-	    if (i > 0) {
-		s.append(",");
-	    }
-	    s.append(keys[i].toString());
-	    s.append(" => ");
-	    s.append(values[i].toString());
-	}
+        boolean first = true;
+        for (final Map.Entry<OtpErlangObject, OtpErlangObject> e : entrySet()) {
+            if (first) {
+                first = false;
+            } else {
+                s.append(",");
+            }
+            s.append(e.getKey().toString());
+            s.append(" => ");
+            s.append(e.getValue().toString());
+        }
 
-	s.append("}");
+        s.append("}");
 
-	return s.toString();
+        return s.toString();
     }
 
     /**
      * Convert this map to the equivalent Erlang external representation.
-     * 
+     *
      * @param buf
      *            an output stream to which the encoded map should be written.
      */
     @Override
     public void encode(final OtpOutputStream buf) {
-	final int arity = values.length;
+        final int arity = arity();
 
-	buf.write_map_head(arity);
+        buf.write_map_head(arity);
 
-	for (int i = 0; i < arity; i++) {
-	    buf.write_any(keys[i]);
-	    buf.write_any(values[i]);
-	}
+        for (final Map.Entry<OtpErlangObject, OtpErlangObject> e : entrySet()) {
+            buf.write_any(e.getKey());
+            buf.write_any(e.getValue());
+        }
     }
 
     /**
      * Determine if two maps are equal. Maps are equal if they have the same
      * arity and all of the elements are equal.
-     * 
+     *
      * @param o
      *            the map to compare to.
-     * 
+     *
      * @return true if the maps have the same arity and all the elements are
      *         equal.
      */
     @Override
     public boolean equals(final Object o) {
-	if (!(o instanceof OtpErlangMap)) {
-	    return false;
-	}
-
-	final OtpErlangMap t = (OtpErlangMap) o;
-	final int a = arity();
-
-	if (a != t.arity()) {
-	    return false;
-	}
-
-	for (int i = 0; i < a; i++) {
-	    if (!keys[i].equals(t.keys[i])) {
-		return false; // early exit
-	    }
-	}
-	for (int i = 0; i < a; i++) {
-	    if (!values[i].equals(t.values[i])) {
-		return false; // early exit
-	    }
-	}
-
-	return true;
+        if (!(o instanceof OtpErlangMap)) {
+            return false;
+        }
+
+        final OtpErlangMap t = (OtpErlangMap) o;
+        final int a = arity();
+
+        if (a != t.arity()) {
+            return false;
+        }
+        if (a == 0) {
+            return true;
+        }
+
+        OtpErlangObject key, val;
+        for (final Map.Entry<OtpErlangObject, OtpErlangObject> e : entrySet()) {
+            key = e.getKey();
+            val = e.getValue();
+            final OtpErlangObject v = t.get(key);
+            if (v == null || !val.equals(v)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    @Override
+    public <T> boolean match(final OtpErlangObject term, final T binds) {
+        if (!(term instanceof OtpErlangMap)) {
+            return false;
+        }
+
+        final OtpErlangMap t = (OtpErlangMap) term;
+        final int a = arity();
+
+        if (a > t.arity()) {
+            return false;
+        }
+        if (a == 0) {
+            return true;
+        }
+
+        OtpErlangObject key, val;
+        for (final Map.Entry<OtpErlangObject, OtpErlangObject> e : entrySet()) {
+            key = e.getKey();
+            val = e.getValue();
+            final OtpErlangObject v = t.get(key);
+            if (v == null || !val.match(v, binds)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    @Override
+    public <T> OtpErlangObject bind(final T binds) throws OtpErlangException {
+        final OtpErlangMap ret = new OtpErlangMap();
+
+        OtpErlangObject key, val;
+        for (final Map.Entry<OtpErlangObject, OtpErlangObject> e : entrySet()) {
+            key = e.getKey();
+            val = e.getValue();
+            ret.put(key, val.bind(binds));
+        }
+
+        return ret;
     }
 
     @Override
     protected int doHashCode() {
-	final OtpErlangObject.Hash hash = new OtpErlangObject.Hash(9);
-	final int a = arity();
-	hash.combine(a);
-	for (int i = 0; i < a; i++) {
-	    hash.combine(keys[i].hashCode());
-	}
-	for (int i = 0; i < a; i++) {
-	    hash.combine(values[i].hashCode());
-	}
-	return hash.valueOf();
+        final OtpErlangObject.Hash hash = new OtpErlangObject.Hash(9);
+        hash.combine(map.hashCode());
+        return hash.valueOf();
     }
 
     @Override
+    @SuppressWarnings("unchecked")
     public Object clone() {
-	final OtpErlangMap newMap = (OtpErlangMap) super.clone();
-	newMap.values = values.clone();
-	return newMap;
+        final OtpErlangMap newMap = (OtpErlangMap) super.clone();
+        newMap.map = (HashMap<OtpErlangObject, OtpErlangObject>) map.clone();
+        return newMap;
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangObject.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangObject.java
index 5215e5887b..9339d3749b 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangObject.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangObject.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -26,7 +26,7 @@ import java.io.Serializable;
  */
 public abstract class OtpErlangObject implements Serializable, Cloneable {
     protected int hashCodeValue = 0;
-    
+
     // don't change this!
     static final long serialVersionUID = -8435938572339430044L;
 
@@ -42,10 +42,9 @@ public abstract class OtpErlangObject implements Serializable, Cloneable {
      * Convert the object according to the rules of the Erlang external format.
      * This is mainly used for sending Erlang terms in messages, however it can
      * also be used for storing terms to disk.
-     * 
+     *
      * @param buf
-     *                an output stream to which the encoded term should be
-     *                written.
+     *            an output stream to which the encoded term should be written.
      */
     public abstract void encode(OtpOutputStream buf);
 
@@ -54,137 +53,176 @@ public abstract class OtpErlangObject implements Serializable, Cloneable {
      * corresponding Erlang data type object. This method is normally used when
      * Erlang terms are received in messages, however it can also be used for
      * reading terms from disk.
-     * 
+     *
      * @param buf
-     *                an input stream containing one or more encoded Erlang
-     *                terms.
-     * 
+     *            an input stream containing one or more encoded Erlang terms.
+     *
      * @return an object representing one of the Erlang data types.
-     * 
+     *
      * @exception OtpErlangDecodeException
-     *                    if the stream does not contain a valid representation
-     *                    of an Erlang term.
+     *                if the stream does not contain a valid representation of
+     *                an Erlang term.
      */
     public static OtpErlangObject decode(final OtpInputStream buf)
-	    throws OtpErlangDecodeException {
-	return buf.read_any();
+            throws OtpErlangDecodeException {
+        return buf.read_any();
     }
 
     /**
      * Determine if two Erlang objects are equal. In general, Erlang objects are
      * equal if the components they consist of are equal.
-     * 
+     *
      * @param o
-     *                the object to compare to.
-     * 
+     *            the object to compare to.
+     *
      * @return true if the objects are identical.
      */
     @Override
     public abstract boolean equals(Object o);
-    
+
+    /**
+     * Perform match operation against given term.
+     *
+     * @param term
+     *            the object to match
+     * @param binds
+     *            variable bindings
+     * @return true if match succeeded
+     */
+    public <T> boolean match(final OtpErlangObject term, final T binds) {
+        return equals(term);
+    }
+
+    /**
+     * Make new Erlang term replacing variables with the respective values from
+     * bindings argument(s).
+     *
+     * @param binds
+     *            variable bindings
+     * @return new term
+     * @throws OtpErlangException
+     */
+    public <T> OtpErlangObject bind(final T binds) throws OtpErlangException {
+        return this;
+    }
+
     @Override
     public int hashCode() {
-	if (hashCodeValue == 0) {
-	    hashCodeValue = doHashCode();
-	}
-	return hashCodeValue;
+        if (hashCodeValue == 0) {
+            hashCodeValue = doHashCode();
+        }
+        return hashCodeValue;
     }
-    
+
     protected int doHashCode() {
-	return super.hashCode();
+        return super.hashCode();
     }
-    
+
     @Override
     public Object clone() {
-	try {
-	    return super.clone();
-	} catch (final CloneNotSupportedException e) {
-	    /* cannot happen */
-	    throw new InternalError(e.toString());
-	}
+        try {
+            return super.clone();
+        } catch (final CloneNotSupportedException e) {
+            /* cannot happen */
+            throw new InternalError(e.toString());
+        }
     }
 
     protected final static class Hash {
-	int abc[] = {0, 0, 0};
-	
-	/* Hash function suggested by Bob Jenkins.
-	 * The same as in the Erlang VM (beam); utils.c.
-	 */
-	
-	private final static int HASH_CONST[] = {
-	    0, // not used
-	    0x9e3779b9, // the golden ratio; an arbitrary value
-	    0x3c6ef372, // (hashHConst[1] * 2) % (1<<32)
-	    0xdaa66d2b, //             1    3
-	    0x78dde6e4, //             1    4
-	    0x1715609d, //             1    5
-	    0xb54cda56, //             1    6
-	    0x5384540f, //             1    7
-	    0xf1bbcdc8, //             1    8
-	    0x8ff34781, //             1    9
-	    0x2e2ac13a, //             1    10
-	    0xcc623af3, //             1    11
-	    0x6a99b4ac, //             1    12
-	    0x08d12e65, //             1    13
-	    0xa708a81e, //             1    14
-	    0x454021d7, //             1    15
-	};
-	
-	protected Hash(int i) {
-	    abc[0] = abc[1] = HASH_CONST[i];
-	    abc[2] = 0;
-	}
-
-	//protected Hash() {
-	//    Hash(1);
-	//}
-
-	private void mix() {
-	    abc[0] -= abc[1]; abc[0] -= abc[2]; abc[0] ^= (abc[2]>>>13);
-	    abc[1] -= abc[2]; abc[1] -= abc[0]; abc[1] ^= (abc[0]<<8);
-	    abc[2] -= abc[0]; abc[2] -= abc[1]; abc[2] ^= (abc[1]>>>13);
-	    abc[0] -= abc[1]; abc[0] -= abc[2]; abc[0] ^= (abc[2]>>>12);
-	    abc[1] -= abc[2]; abc[1] -= abc[0]; abc[1] ^= (abc[0]<<16);
-	    abc[2] -= abc[0]; abc[2] -= abc[1]; abc[2] ^= (abc[1]>>>5);
-	    abc[0] -= abc[1]; abc[0] -= abc[2]; abc[0] ^= (abc[2]>>>3);
-	    abc[1] -= abc[2]; abc[1] -= abc[0]; abc[1] ^= (abc[0]<<10);
-	    abc[2] -= abc[0]; abc[2] -= abc[1]; abc[2] ^= (abc[1]>>>15);
-	}
-	
-	protected void combine(int a) {
-	    abc[0] += a;
-	    mix();
-	}
-	
-	protected void combine(long a) {
-	    combine((int)(a >>> 32), (int) a);
-	}
-	
-	protected void combine(int a, int b) {
-	    abc[0] += a;
-	    abc[1] += b;
-	    mix();
-	}
-	
-	protected void combine(byte b[]) {
-	    int j, k;
-	    for (j = 0, k = 0;  
-		 j + 4 < b.length;  
-		 j += 4, k += 1, k %= 3) {
-        abc[k] += (b[j+0] & 0xFF) + (b[j+1]<<8 & 0xFF00)
-            + (b[j+2]<<16 & 0xFF0000) + (b[j+3]<<24);
-		mix();
-	    }
-	    for (int n = 0, m = 0xFF;
-		 j < b.length;
-		 j++, n += 8, m <<= 8) {
-        abc[k] += b[j]<<n & m;
-	    }
-	    mix();
-	}
-	
-	protected int valueOf() {
-	    return abc[2];
-	}
+        int abc[] = { 0, 0, 0 };
+
+        /*
+         * Hash function suggested by Bob Jenkins. The same as in the Erlang VM
+         * (beam); utils.c.
+         */
+
+        private final static int HASH_CONST[] = { 0, // not used
+                0x9e3779b9, // the golden ratio; an arbitrary value
+                0x3c6ef372, // (hashHConst[1] * 2) % (1<<32)
+                0xdaa66d2b, // 1 3
+                0x78dde6e4, // 1 4
+                0x1715609d, // 1 5
+                0xb54cda56, // 1 6
+                0x5384540f, // 1 7
+                0xf1bbcdc8, // 1 8
+                0x8ff34781, // 1 9
+                0x2e2ac13a, // 1 10
+                0xcc623af3, // 1 11
+                0x6a99b4ac, // 1 12
+                0x08d12e65, // 1 13
+                0xa708a81e, // 1 14
+                0x454021d7, // 1 15
+        };
+
+        protected Hash(final int i) {
+            abc[0] = abc[1] = HASH_CONST[i];
+            abc[2] = 0;
+        }
+
+        // protected Hash() {
+        // Hash(1);
+        // }
+
+        private void mix() {
+            abc[0] -= abc[1];
+            abc[0] -= abc[2];
+            abc[0] ^= abc[2] >>> 13;
+            abc[1] -= abc[2];
+            abc[1] -= abc[0];
+            abc[1] ^= abc[0] << 8;
+            abc[2] -= abc[0];
+            abc[2] -= abc[1];
+            abc[2] ^= abc[1] >>> 13;
+            abc[0] -= abc[1];
+            abc[0] -= abc[2];
+            abc[0] ^= abc[2] >>> 12;
+            abc[1] -= abc[2];
+            abc[1] -= abc[0];
+            abc[1] ^= abc[0] << 16;
+            abc[2] -= abc[0];
+            abc[2] -= abc[1];
+            abc[2] ^= abc[1] >>> 5;
+            abc[0] -= abc[1];
+            abc[0] -= abc[2];
+            abc[0] ^= abc[2] >>> 3;
+            abc[1] -= abc[2];
+            abc[1] -= abc[0];
+            abc[1] ^= abc[0] << 10;
+            abc[2] -= abc[0];
+            abc[2] -= abc[1];
+            abc[2] ^= abc[1] >>> 15;
+        }
+
+        protected void combine(final int a) {
+            abc[0] += a;
+            mix();
+        }
+
+        protected void combine(final long a) {
+            combine((int) (a >>> 32), (int) a);
+        }
+
+        protected void combine(final int a, final int b) {
+            abc[0] += a;
+            abc[1] += b;
+            mix();
+        }
+
+        protected void combine(final byte b[]) {
+            int j, k;
+            for (j = 0, k = 0; j + 4 < b.length; j += 4, k += 1, k %= 3) {
+                abc[k] += (b[j + 0] & 0xFF) + (b[j + 1] << 8 & 0xFF00)
+                        + (b[j + 2] << 16 & 0xFF0000) + (b[j + 3] << 24);
+                mix();
+            }
+            for (int n = 0, m = 0xFF; j < b.length; j++, n += 8, m <<= 8) {
+                abc[k] += b[j] << n & m;
+            }
+            mix();
+        }
+
+        protected int valueOf() {
+            return abc[2];
+        }
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPid.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPid.java
index 4c9f5c78a3..0f6ba8c538 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPid.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPid.java
@@ -1,24 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
-
 /**
  * Provides a Java representation of Erlang PIDs. PIDs represent Erlang
  * processes and consist of a nodename and a number of integers.
@@ -34,172 +33,170 @@ public class OtpErlangPid extends OtpErlangObject implements Comparable<Object>
 
     /**
      * Create a unique Erlang PID belonging to the local node.
-     * 
+     *
      * @param self
-     *                the local node.
-     * 
+     *            the local node.
+     *
      * @deprecated use OtpLocalNode:createPid() instead
      */
     @Deprecated
     public OtpErlangPid(final OtpLocalNode self) {
-	final OtpErlangPid p = self.createPid();
+        final OtpErlangPid p = self.createPid();
 
-	id = p.id;
-	serial = p.serial;
-	creation = p.creation;
-	node = p.node;
+        id = p.id;
+        serial = p.serial;
+        creation = p.creation;
+        node = p.node;
     }
 
     /**
      * Create an Erlang PID from a stream containing a PID encoded in Erlang
      * external format.
-     * 
+     *
      * @param buf
-     *                the stream containing the encoded PID.
-     * 
+     *            the stream containing the encoded PID.
+     *
      * @exception OtpErlangDecodeException
-     *                    if the buffer does not contain a valid external
-     *                    representation of an Erlang PID.
+     *                if the buffer does not contain a valid external
+     *                representation of an Erlang PID.
      */
     public OtpErlangPid(final OtpInputStream buf)
-	    throws OtpErlangDecodeException {
-	final OtpErlangPid p = buf.read_pid();
+            throws OtpErlangDecodeException {
+        final OtpErlangPid p = buf.read_pid();
 
-	node = p.node();
-	id = p.id();
-	serial = p.serial();
-	creation = p.creation();
+        node = p.node();
+        id = p.id();
+        serial = p.serial();
+        creation = p.creation();
     }
 
     /**
      * Create an Erlang pid from its components.
-     * 
+     *
      * @param node
-     *                the nodename.
-     * 
+     *            the nodename.
+     *
      * @param id
-     *                an arbitrary number. Only the low order 15 bits will be
-     *                used.
-     * 
+     *            an arbitrary number. Only the low order 15 bits will be used.
+     *
      * @param serial
-     *                another arbitrary number. Only the low order 13 bits will
-     *                be used.
-     * 
+     *            another arbitrary number. Only the low order 13 bits will be
+     *            used.
+     *
      * @param creation
-     *                yet another arbitrary number. Only the low order 2 bits
-     *                will be used.
+     *            yet another arbitrary number. Only the low order 2 bits will
+     *            be used.
      */
     public OtpErlangPid(final String node, final int id, final int serial,
-	    final int creation) {
-	this.node = node;
-	this.id = id & 0x7fff; // 15 bits
-	this.serial = serial & 0x1fff; // 13 bits
-	this.creation = creation & 0x03; // 2 bits
+            final int creation) {
+        this.node = node;
+        this.id = id & 0x7fff; // 15 bits
+        this.serial = serial & 0x1fff; // 13 bits
+        this.creation = creation & 0x03; // 2 bits
     }
 
     /**
      * Get the serial number from the PID.
-     * 
+     *
      * @return the serial number from the PID.
      */
     public int serial() {
-	return serial;
+        return serial;
     }
 
     /**
      * Get the id number from the PID.
-     * 
+     *
      * @return the id number from the PID.
      */
     public int id() {
-	return id;
+        return id;
     }
 
     /**
      * Get the creation number from the PID.
-     * 
+     *
      * @return the creation number from the PID.
      */
     public int creation() {
-	return creation;
+        return creation;
     }
 
     /**
      * Get the node name from the PID.
-     * 
+     *
      * @return the node name from the PID.
      */
     public String node() {
-	return node;
+        return node;
     }
 
     /**
      * Get the string representation of the PID. Erlang PIDs are printed as
      * #Pid&lt;node.id.serial&gt;
-     * 
+     *
      * @return the string representation of the PID.
      */
     @Override
     public String toString() {
-	return "#Pid<" + node.toString() + "." + id + "." + serial + ">";
+        return "#Pid<" + node.toString() + "." + id + "." + serial + ">";
     }
 
     /**
      * Convert this PID to the equivalent Erlang external representation.
-     * 
+     *
      * @param buf
-     *                an output stream to which the encoded PID should be
-     *                written.
+     *            an output stream to which the encoded PID should be written.
      */
     @Override
     public void encode(final OtpOutputStream buf) {
-	buf.write_pid(node, id, serial, creation);
+        buf.write_pid(node, id, serial, creation);
     }
 
     /**
      * Determine if two PIDs are equal. PIDs are equal if their components are
      * equal.
-     * 
+     *
      * @param o
-     *                the other PID to compare to.
-     * 
+     *            the other PID to compare to.
+     *
      * @return true if the PIDs are equal, false otherwise.
      */
     @Override
     public boolean equals(final Object o) {
-	if (!(o instanceof OtpErlangPid)) {
-	    return false;
-	}
+        if (!(o instanceof OtpErlangPid)) {
+            return false;
+        }
 
-	final OtpErlangPid pid = (OtpErlangPid) o;
+        final OtpErlangPid pid = (OtpErlangPid) o;
 
-	return creation == pid.creation && serial == pid.serial && id == pid.id
-		&& node.compareTo(pid.node) == 0;
+        return creation == pid.creation && serial == pid.serial && id == pid.id
+                && node.compareTo(pid.node) == 0;
     }
-    
+
     @Override
     protected int doHashCode() {
-	OtpErlangObject.Hash hash = new OtpErlangObject.Hash(5);
-	hash.combine(creation, serial);
-	hash.combine(id, node.hashCode());
-	return hash.valueOf();
+        final OtpErlangObject.Hash hash = new OtpErlangObject.Hash(5);
+        hash.combine(creation, serial);
+        hash.combine(id, node.hashCode());
+        return hash.valueOf();
     }
-    
+
     public int compareTo(final Object o) {
-	if (!(o instanceof OtpErlangPid)) {
-	    return -1;
-	}
-
-	final OtpErlangPid pid = (OtpErlangPid) o;
-	if (creation == pid.creation) {
-	    if (serial == pid.serial) {
-		if (id == pid.id) {
-		    return node.compareTo(pid.node);
+        if (!(o instanceof OtpErlangPid)) {
+            return -1;
+        }
+
+        final OtpErlangPid pid = (OtpErlangPid) o;
+        if (creation == pid.creation) {
+            if (serial == pid.serial) {
+                if (id == pid.id) {
+                    return node.compareTo(pid.node);
+                }
+                return id - pid.id;
+            }
+            return serial - pid.serial;
         }
-		    return id - pid.id;
-		}
-		return serial - pid.serial;
-	    }
-	    return creation - pid.creation;
-	}
+        return creation - pid.creation;
     }
+}
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPort.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPort.java
index 8557e17325..fc7345aaff 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPort.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPort.java
@@ -1,24 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
-
 /**
  * Provides a Java representation of Erlang ports.
  */
@@ -33,136 +32,134 @@ public class OtpErlangPort extends OtpErlangObject {
     /*
      * Create a unique Erlang port belonging to the local node. Since it isn't
      * meaninful to do so, this constructor is private...
-     * 
+     *
      * @param self the local node.
-     * 
+     *
      * @deprecated use OtpLocalNode:createPort() instead
      */
     @SuppressWarnings("unused")
     private OtpErlangPort(final OtpSelf self) {
-	final OtpErlangPort p = self.createPort();
+        final OtpErlangPort p = self.createPort();
 
-	id = p.id;
-	creation = p.creation;
-	node = p.node;
+        id = p.id;
+        creation = p.creation;
+        node = p.node;
     }
 
     /**
      * Create an Erlang port from a stream containing a port encoded in Erlang
      * external format.
-     * 
+     *
      * @param buf
-     *                the stream containing the encoded port.
-     * 
+     *            the stream containing the encoded port.
+     *
      * @exception OtpErlangDecodeException
-     *                    if the buffer does not contain a valid external
-     *                    representation of an Erlang port.
+     *                if the buffer does not contain a valid external
+     *                representation of an Erlang port.
      */
     public OtpErlangPort(final OtpInputStream buf)
-	    throws OtpErlangDecodeException {
-	final OtpErlangPort p = buf.read_port();
+            throws OtpErlangDecodeException {
+        final OtpErlangPort p = buf.read_port();
 
-	node = p.node();
-	id = p.id();
-	creation = p.creation();
+        node = p.node();
+        id = p.id();
+        creation = p.creation();
     }
 
     /**
      * Create an Erlang port from its components.
-     * 
+     *
      * @param node
-     *                the nodename.
-     * 
+     *            the nodename.
+     *
      * @param id
-     *                an arbitrary number. Only the low order 28 bits will be
-     *                used.
-     * 
+     *            an arbitrary number. Only the low order 28 bits will be used.
+     *
      * @param creation
-     *                another arbitrary number. Only the low order 2 bits will
-     *                be used.
+     *            another arbitrary number. Only the low order 2 bits will be
+     *            used.
      */
     public OtpErlangPort(final String node, final int id, final int creation) {
-	this.node = node;
-	this.id = id & 0xfffffff; // 28 bits
-	this.creation = creation & 0x03; // 2 bits
+        this.node = node;
+        this.id = id & 0xfffffff; // 28 bits
+        this.creation = creation & 0x03; // 2 bits
     }
 
     /**
      * Get the id number from the port.
-     * 
+     *
      * @return the id number from the port.
      */
     public int id() {
-	return id;
+        return id;
     }
 
     /**
      * Get the creation number from the port.
-     * 
+     *
      * @return the creation number from the port.
      */
     public int creation() {
-	return creation;
+        return creation;
     }
 
     /**
      * Get the node name from the port.
-     * 
+     *
      * @return the node name from the port.
      */
     public String node() {
-	return node;
+        return node;
     }
 
     /**
      * Get the string representation of the port. Erlang ports are printed as
      * #Port&lt;node.id&gt;.
-     * 
+     *
      * @return the string representation of the port.
      */
     @Override
     public String toString() {
-	return "#Port<" + node + "." + id + ">";
+        return "#Port<" + node + "." + id + ">";
     }
 
     /**
      * Convert this port to the equivalent Erlang external representation.
-     * 
+     *
      * @param buf
-     *                an output stream to which the encoded port should be
-     *                written.
+     *            an output stream to which the encoded port should be written.
      */
     @Override
     public void encode(final OtpOutputStream buf) {
-	buf.write_port(node, id, creation);
+        buf.write_port(node, id, creation);
     }
 
     /**
      * Determine if two ports are equal. Ports are equal if their components are
      * equal.
-     * 
+     *
      * @param o
-     *                the other port to compare to.
-     * 
+     *            the other port to compare to.
+     *
      * @return true if the ports are equal, false otherwise.
      */
     @Override
     public boolean equals(final Object o) {
-	if (!(o instanceof OtpErlangPort)) {
-	    return false;
-	}
+        if (!(o instanceof OtpErlangPort)) {
+            return false;
+        }
 
-	final OtpErlangPort port = (OtpErlangPort) o;
+        final OtpErlangPort port = (OtpErlangPort) o;
 
-	return creation == port.creation && id == port.id
-		&& node.compareTo(port.node) == 0;
+        return creation == port.creation && id == port.id
+                && node.compareTo(port.node) == 0;
     }
-    
+
     @Override
     protected int doHashCode() {
-	OtpErlangObject.Hash hash = new OtpErlangObject.Hash(6);
-	hash.combine(creation);
-	hash.combine(id, node.hashCode());
-	return hash.valueOf();
+        final OtpErlangObject.Hash hash = new OtpErlangObject.Hash(6);
+        hash.combine(creation);
+        hash.combine(id, node.hashCode());
+        return hash.valueOf();
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangRangeException.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangRangeException.java
index a78b6df6ef..21732717d3 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangRangeException.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangRangeException.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -21,7 +21,7 @@ package com.ericsson.otp.erlang;
 /**
  * Exception raised when an attempt is made to create an Erlang term with data
  * that is out of range for the term in question.
- * 
+ *
  * @see OtpErlangByte
  * @see OtpErlangChar
  * @see OtpErlangInt
@@ -37,6 +37,6 @@ public class OtpErlangRangeException extends OtpErlangException {
      * Provides a detailed message.
      */
     public OtpErlangRangeException(final String msg) {
-	super(msg);
+        super(msg);
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangRef.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangRef.java
index 13a83333fa..f8031fb2e6 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangRef.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangRef.java
@@ -1,24 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
-
 /**
  * Provides a Java representation of Erlang refs. There are two styles of Erlang
  * refs, old style (one id value) and new style (array of id values). This class
@@ -37,203 +36,201 @@ public class OtpErlangRef extends OtpErlangObject {
 
     /**
      * Create a unique Erlang ref belonging to the local node.
-     * 
+     *
      * @param self
-     *                the local node.
-     * 
+     *            the local node.
+     *
      * @deprecated use OtpLocalNode:createRef() instead
      */
     @Deprecated
     public OtpErlangRef(final OtpLocalNode self) {
-	final OtpErlangRef r = self.createRef();
+        final OtpErlangRef r = self.createRef();
 
-	ids = r.ids;
-	creation = r.creation;
-	node = r.node;
+        ids = r.ids;
+        creation = r.creation;
+        node = r.node;
     }
 
     /**
      * Create an Erlang ref from a stream containing a ref encoded in Erlang
      * external format.
-     * 
+     *
      * @param buf
-     *                the stream containing the encoded ref.
-     * 
+     *            the stream containing the encoded ref.
+     *
      * @exception OtpErlangDecodeException
-     *                    if the buffer does not contain a valid external
-     *                    representation of an Erlang ref.
+     *                if the buffer does not contain a valid external
+     *                representation of an Erlang ref.
      */
     public OtpErlangRef(final OtpInputStream buf)
-	    throws OtpErlangDecodeException {
-	final OtpErlangRef r = buf.read_ref();
+            throws OtpErlangDecodeException {
+        final OtpErlangRef r = buf.read_ref();
 
-	node = r.node();
-	creation = r.creation();
+        node = r.node();
+        creation = r.creation();
 
-	ids = r.ids();
+        ids = r.ids();
     }
 
     /**
      * Create an old style Erlang ref from its components.
-     * 
+     *
      * @param node
-     *                the nodename.
-     * 
+     *            the nodename.
+     *
      * @param id
-     *                an arbitrary number. Only the low order 18 bits will be
-     *                used.
-     * 
+     *            an arbitrary number. Only the low order 18 bits will be used.
+     *
      * @param creation
-     *                another arbitrary number. Only the low order 2 bits will
-     *                be used.
+     *            another arbitrary number. Only the low order 2 bits will be
+     *            used.
      */
     public OtpErlangRef(final String node, final int id, final int creation) {
-	this.node = node;
-	ids = new int[1];
-	ids[0] = id & 0x3ffff; // 18 bits
-	this.creation = creation & 0x03; // 2 bits
+        this.node = node;
+        ids = new int[1];
+        ids[0] = id & 0x3ffff; // 18 bits
+        this.creation = creation & 0x03; // 2 bits
     }
 
     /**
      * Create a new style Erlang ref from its components.
-     * 
+     *
      * @param node
-     *                the nodename.
-     * 
+     *            the nodename.
+     *
      * @param ids
-     *                an array of arbitrary numbers. Only the low order 18 bits
-     *                of the first number will be used. If the array contains
-     *                only one number, an old style ref will be written instead.
-     *                At most three numbers will be read from the array.
-     * 
+     *            an array of arbitrary numbers. Only the low order 18 bits of
+     *            the first number will be used. If the array contains only one
+     *            number, an old style ref will be written instead. At most
+     *            three numbers will be read from the array.
+     *
      * @param creation
-     *                another arbitrary number. Only the low order 2 bits will
-     *                be used.
+     *            another arbitrary number. Only the low order 2 bits will be
+     *            used.
      */
     public OtpErlangRef(final String node, final int[] ids, final int creation) {
-	this.node = node;
-	this.creation = creation & 0x03; // 2 bits
+        this.node = node;
+        this.creation = creation & 0x03; // 2 bits
 
-	// use at most 82 bits (18 + 32 + 32)
-	int len = ids.length;
-	this.ids = new int[3];
-	this.ids[0] = 0;
-	this.ids[1] = 0;
-	this.ids[2] = 0;
+        // use at most 82 bits (18 + 32 + 32)
+        int len = ids.length;
+        this.ids = new int[3];
+        this.ids[0] = 0;
+        this.ids[1] = 0;
+        this.ids[2] = 0;
 
-	if (len > 3) {
-	    len = 3;
-	}
-	System.arraycopy(ids, 0, this.ids, 0, len);
-	this.ids[0] &= 0x3ffff; // only 18 significant bits in first number
+        if (len > 3) {
+            len = 3;
+        }
+        System.arraycopy(ids, 0, this.ids, 0, len);
+        this.ids[0] &= 0x3ffff; // only 18 significant bits in first number
     }
 
     /**
      * Get the id number from the ref. Old style refs have only one id number.
      * If this is a new style ref, the first id number is returned.
-     * 
+     *
      * @return the id number from the ref.
      */
     public int id() {
-	return ids[0];
+        return ids[0];
     }
 
     /**
      * Get the array of id numbers from the ref. If this is an old style ref,
      * the array is of length 1. If this is a new style ref, the array has
      * length 3.
-     * 
+     *
      * @return the array of id numbers from the ref.
      */
     public int[] ids() {
-	return ids;
+        return ids;
     }
 
     /**
      * Determine whether this is a new style ref.
-     * 
+     *
      * @return true if this ref is a new style ref, false otherwise.
      */
     public boolean isNewRef() {
-	return ids.length > 1;
+        return ids.length > 1;
     }
 
     /**
      * Get the creation number from the ref.
-     * 
+     *
      * @return the creation number from the ref.
      */
     public int creation() {
-	return creation;
+        return creation;
     }
 
     /**
      * Get the node name from the ref.
-     * 
+     *
      * @return the node name from the ref.
      */
     public String node() {
-	return node;
+        return node;
     }
 
     /**
      * Get the string representation of the ref. Erlang refs are printed as
      * #Ref&lt;node.id&gt;
-     * 
+     *
      * @return the string representation of the ref.
      */
     @Override
     public String toString() {
-	String s = "#Ref<" + node;
+        String s = "#Ref<" + node;
 
-	for (int i = 0; i < ids.length; i++) {
-	    s += "." + ids[i];
-	}
+        for (int i = 0; i < ids.length; i++) {
+            s += "." + ids[i];
+        }
 
-	s += ">";
+        s += ">";
 
-	return s;
+        return s;
     }
 
     /**
      * Convert this ref to the equivalent Erlang external representation.
-     * 
+     *
      * @param buf
-     *                an output stream to which the encoded ref should be
-     *                written.
+     *            an output stream to which the encoded ref should be written.
      */
     @Override
     public void encode(final OtpOutputStream buf) {
-	buf.write_ref(node, ids, creation);
+        buf.write_ref(node, ids, creation);
     }
 
     /**
      * Determine if two refs are equal. Refs are equal if their components are
      * equal. New refs and old refs are considered equal if the node, creation
      * and first id numnber are equal.
-     * 
+     *
      * @param o
-     *                the other ref to compare to.
-     * 
+     *            the other ref to compare to.
+     *
      * @return true if the refs are equal, false otherwise.
      */
     @Override
     public boolean equals(final Object o) {
-	if (!(o instanceof OtpErlangRef)) {
-	    return false;
-	}
+        if (!(o instanceof OtpErlangRef)) {
+            return false;
+        }
 
-	final OtpErlangRef ref = (OtpErlangRef) o;
+        final OtpErlangRef ref = (OtpErlangRef) o;
 
-	if (!(node.equals(ref.node()) && creation == ref.creation())) {
-	    return false;
-	}
+        if (!(node.equals(ref.node()) && creation == ref.creation())) {
+            return false;
+        }
 
-	if (isNewRef() && ref.isNewRef()) {
-	    return ids[0] == ref.ids[0] && ids[1] == ref.ids[1]
-		    && ids[2] == ref.ids[2];
-	}
-	return ids[0] == ref.ids[0];
+        if (isNewRef() && ref.isNewRef()) {
+            return ids[0] == ref.ids[0] && ids[1] == ref.ids[1]
+                    && ids[2] == ref.ids[2];
+        }
+        return ids[0] == ref.ids[0];
     }
 
     /**
@@ -245,18 +242,18 @@ public class OtpErlangRef extends OtpErlangObject {
 
     @Override
     protected int doHashCode() {
-	OtpErlangObject.Hash hash = new OtpErlangObject.Hash(7);
-	hash.combine(creation, ids[0]);
-	if (isNewRef()) {
-	    hash.combine(ids[1], ids[2]);
-	}
-	return hash.valueOf();
+        final OtpErlangObject.Hash hash = new OtpErlangObject.Hash(7);
+        hash.combine(creation, ids[0]);
+        if (isNewRef()) {
+            hash.combine(ids[1], ids[2]);
+        }
+        return hash.valueOf();
     }
-    
+
     @Override
     public Object clone() {
-	final OtpErlangRef newRef = (OtpErlangRef) super.clone();
-	newRef.ids = ids.clone();
-	return newRef;
+        final OtpErlangRef newRef = (OtpErlangRef) super.clone();
+        newRef.ids = ids.clone();
+        return newRef;
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangShort.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangShort.java
index 6ef56defbd..0083066141 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangShort.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangShort.java
@@ -1,24 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
-
 /**
  * Provides a Java representation of Erlang integral types.
  */
@@ -28,34 +27,33 @@ public class OtpErlangShort extends OtpErlangLong {
 
     /**
      * Create an Erlang integer from the given value.
-     * 
+     *
      * @param s
-     *                the short value to use.
+     *            the short value to use.
      */
     public OtpErlangShort(final short s) {
-	super(s);
+        super(s);
     }
 
     /**
      * Create an Erlang integer from a stream containing an integer encoded in
      * Erlang external format.
-     * 
+     *
      * @param buf
-     *                the stream containing the encoded value.
-     * 
+     *            the stream containing the encoded value.
+     *
      * @exception OtpErlangDecodeException
-     *                    if the buffer does not contain a valid external
-     *                    representation of an Erlang integer.
-     * 
+     *                if the buffer does not contain a valid external
+     *                representation of an Erlang integer.
+     *
      * @exception OtpErlangRangeException
-     *                    if the value is too large to be represented as a
-     *                    short.
+     *                if the value is too large to be represented as a short.
      */
     public OtpErlangShort(final OtpInputStream buf)
-	    throws OtpErlangRangeException, OtpErlangDecodeException {
-	super(buf);
+            throws OtpErlangRangeException, OtpErlangDecodeException {
+        super(buf);
 
-    shortValue();
+        shortValue();
     }
 
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangString.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangString.java
index 1bccfcc567..9e5450ca75 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangString.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangString.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2012. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -33,75 +33,74 @@ public class OtpErlangString extends OtpErlangObject {
      * Create an Erlang string from the given string.
      */
     public OtpErlangString(final String str) {
-	this.str = str;
+        this.str = str;
     }
 
     /**
      * Create an Erlang string from a list of integers.
      *
      * @throws OtpErlangException
-     *                for non-proper and non-integer lists.
+     *             for non-proper and non-integer lists.
      * @throws OtpErlangRangeException
-     *                if an integer in the list is not
-     *                a valid Unicode code point according to Erlang.
+     *             if an integer in the list is not a valid Unicode code point
+     *             according to Erlang.
      */
-    public OtpErlangString(final OtpErlangList list)
-	    throws OtpErlangException {
-	String s = list.stringValue();
-	final int n = s.length();
-	for (int i = 0;  i < n;  i = s.offsetByCodePoints(i, 1)) {
-	    int cp = s.codePointAt(i);
-	    if (! isValidCodePoint(cp)) {
-		throw new OtpErlangRangeException("Invalid CodePoint: " + cp);
-	    }
-	}
-	str = s;
+    public OtpErlangString(final OtpErlangList list) throws OtpErlangException {
+        final String s = list.stringValue();
+        final int n = s.length();
+        for (int i = 0; i < n; i = s.offsetByCodePoints(i, 1)) {
+            final int cp = s.codePointAt(i);
+            if (!isValidCodePoint(cp)) {
+                throw new OtpErlangRangeException("Invalid CodePoint: " + cp);
+            }
+        }
+        str = s;
     }
 
     /**
      * Create an Erlang string from a stream containing a string encoded in
      * Erlang external format.
-     * 
+     *
      * @param buf
      *            the stream containing the encoded string.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the buffer does not contain a valid external
      *                representation of an Erlang string.
      */
     public OtpErlangString(final OtpInputStream buf)
-	    throws OtpErlangDecodeException {
-	str = buf.read_string();
+            throws OtpErlangDecodeException {
+        str = buf.read_string();
     }
 
     /**
      * Get the actual string contained in this object.
-     * 
+     *
      * @return the raw string contained in this object, without regard to Erlang
      *         quoting rules.
-     * 
+     *
      * @see #toString
      */
     public String stringValue() {
-	return str;
+        return str;
     }
 
     /**
      * Get the printable version of the string contained in this object.
-     * 
+     *
      * @return the string contained in this object, quoted.
-     * 
+     *
      * @see #stringValue
      */
 
     @Override
     public String toString() {
-	return "\"" + str + "\"";
+        return "\"" + str + "\"";
     }
 
     /**
      * Convert this string to the equivalent Erlang external representation.
-     * 
+     *
      * @param buf
      *            an output stream to which the encoded string should be
      *            written.
@@ -109,48 +108,48 @@ public class OtpErlangString extends OtpErlangObject {
 
     @Override
     public void encode(final OtpOutputStream buf) {
-	buf.write_string(str);
+        buf.write_string(str);
     }
 
     /**
      * Determine if two strings are equal. They are equal if they represent the
      * same sequence of characters. This method can be used to compare
      * OtpErlangStrings with each other and with Strings.
-     * 
+     *
      * @param o
      *            the OtpErlangString or String to compare to.
-     * 
+     *
      * @return true if the strings consist of the same sequence of characters,
      *         false otherwise.
      */
 
     @Override
     public boolean equals(final Object o) {
-	if (o instanceof String) {
-	    return str.compareTo((String) o) == 0;
-	} else if (o instanceof OtpErlangString) {
-	    return str.compareTo(((OtpErlangString) o).str) == 0;
-	}
+        if (o instanceof String) {
+            return str.compareTo((String) o) == 0;
+        } else if (o instanceof OtpErlangString) {
+            return str.compareTo(((OtpErlangString) o).str) == 0;
+        }
 
-	return false;
+        return false;
     }
-    
+
     @Override
     protected int doHashCode() {
-	return str.hashCode();
+        return str.hashCode();
     }
 
     /**
      * Create Unicode code points from a String.
-     * 
-     * @param  s
-     *             a String to convert to an Unicode code point array
      *
-     * @return the corresponding array of integers representing
-     *         Unicode code points
+     * @param s
+     *            a String to convert to an Unicode code point array
+     *
+     * @return the corresponding array of integers representing Unicode code
+     *         points
      */
 
-   public static int[] stringToCodePoints(final String s) {
+    public static int[] stringToCodePoints(final String s) {
         final int m = s.codePointCount(0, s.length());
         final int[] codePoints = new int[m];
         int j = 0;
@@ -163,34 +162,34 @@ public class OtpErlangString extends OtpErlangObject {
     }
 
     /**
-     * Validate a code point according to Erlang definition; Unicode 3.0.
-     * That is; valid in the range U+0..U+10FFFF, but not in the range
-     * U+D800..U+DFFF (surrogat pairs).
+     * Validate a code point according to Erlang definition; Unicode 3.0. That
+     * is; valid in the range U+0..U+10FFFF, but not in the range U+D800..U+DFFF
+     * (surrogat pairs).
      *
-     * @param  cp
-     *             the code point value to validate
+     * @param cp
+     *            the code point value to validate
      *
-     * @return true if the code point is valid,
-     *         false otherwise.
+     * @return true if the code point is valid, false otherwise.
      */
 
     public static boolean isValidCodePoint(final int cp) {
-	// Erlang definition of valid Unicode code points; 
-	// Unicode 3.0, XML, et.al.
-	return (cp>>>16) <= 0x10 // in 0..10FFFF; Unicode range
-	    && (cp & ~0x7FF) != 0xD800; // not in D800..DFFF; surrogate range
+        // Erlang definition of valid Unicode code points;
+        // Unicode 3.0, XML, et.al.
+        return cp >>> 16 <= 0x10 // in 0..10FFFF; Unicode range
+                && (cp & ~0x7FF) != 0xD800; // not in D800..DFFF; surrogate
+                                            // range
     }
 
     /**
-     * Construct a String from a Latin-1 (ISO-8859-1) encoded byte array,
-     * if Latin-1 is available, otherwise use the default encoding. 
+     * Construct a String from a Latin-1 (ISO-8859-1) encoded byte array, if
+     * Latin-1 is available, otherwise use the default encoding.
      *
      */
     public static String newString(final byte[] bytes) {
-	try {
-	    return new String(bytes, "ISO-8859-1");
-	} catch (final UnsupportedEncodingException e) {
-	}
-	return new String(bytes);
+        try {
+            return new String(bytes, "ISO-8859-1");
+        } catch (final UnsupportedEncodingException e) {
+        }
+        return new String(bytes);
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangTuple.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangTuple.java
index dffaa530cd..ef0a453de1 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangTuple.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangTuple.java
@@ -1,28 +1,27 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2013. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
-
 /**
  * Provides a Java representation of Erlang tuples. Tuples are created from one
  * or more arbitrary Erlang terms.
- * 
+ *
  * <p>
  * The arity of the tuple is the number of elements it contains. Elements are
  * indexed from 0 to (arity-1) and can be retrieved individually by using the
@@ -38,222 +37,248 @@ public class OtpErlangTuple extends OtpErlangObject {
 
     /**
      * Create a unary tuple containing the given element.
-     * 
+     *
      * @param elem
-     *                the element to create the tuple from.
-     * 
+     *            the element to create the tuple from.
+     *
      * @exception java.lang.IllegalArgumentException
-     *                    if the element is null.
+     *                if the element is null.
      */
     public OtpErlangTuple(final OtpErlangObject elem) {
-	if (elem == null) {
-	    throw new java.lang.IllegalArgumentException(
-		    "Tuple element cannot be null");
-	}
-    elems = new OtpErlangObject[] { elem };
+        if (elem == null) {
+            throw new java.lang.IllegalArgumentException(
+                    "Tuple element cannot be null");
+        }
+        elems = new OtpErlangObject[] { elem };
     }
 
     /**
      * Create a tuple from an array of terms.
-     * 
+     *
      * @param elems
-     *                the array of terms to create the tuple from.
-     * 
+     *            the array of terms to create the tuple from.
+     *
      * @exception java.lang.IllegalArgumentException
-     *                    if the array is empty (null) or contains null
-     *                    elements.
+     *                if the array is empty (null) or contains null elements.
      */
     public OtpErlangTuple(final OtpErlangObject[] elems) {
-	this(elems, 0, elems.length);
+        this(elems, 0, elems.length);
     }
 
     /**
      * Create a tuple from an array of terms.
-     * 
+     *
      * @param elems
-     *                the array of terms to create the tuple from.
+     *            the array of terms to create the tuple from.
      * @param start
-     *                the offset of the first term to insert.
+     *            the offset of the first term to insert.
      * @param count
-     *                the number of terms to insert.
-     * 
+     *            the number of terms to insert.
+     *
      * @exception java.lang.IllegalArgumentException
-     *                    if the array is empty (null) or contains null
-     *                    elements.
+     *                if the array is empty (null) or contains null elements.
      */
     public OtpErlangTuple(final OtpErlangObject[] elems, final int start,
-	    final int count) {
-	if (elems == null) {
-	    throw new java.lang.IllegalArgumentException(
-		    "Tuple content can't be null");
-	} else if (count < 1) {
-	    this.elems = NO_ELEMENTS;
-	} else {
-	    this.elems = new OtpErlangObject[count];
-	    for (int i = 0; i < count; i++) {
-		if (elems[start + i] != null) {
-		    this.elems[i] = elems[start + i];
-		} else {
-		    throw new java.lang.IllegalArgumentException(
-			    "Tuple element cannot be null (element"
-				    + (start + i) + ")");
-		}
-	    }
-	}
+            final int count) {
+        if (elems == null) {
+            throw new java.lang.IllegalArgumentException(
+                    "Tuple content can't be null");
+        } else if (count < 1) {
+            this.elems = NO_ELEMENTS;
+        } else {
+            this.elems = new OtpErlangObject[count];
+            for (int i = 0; i < count; i++) {
+                if (elems[start + i] != null) {
+                    this.elems[i] = elems[start + i];
+                } else {
+                    throw new java.lang.IllegalArgumentException(
+                            "Tuple element cannot be null (element"
+                                    + (start + i) + ")");
+                }
+            }
+        }
     }
 
     /**
      * Create a tuple from a stream containing an tuple encoded in Erlang
      * external format.
-     * 
+     *
      * @param buf
-     *                the stream containing the encoded tuple.
-     * 
+     *            the stream containing the encoded tuple.
+     *
      * @exception OtpErlangDecodeException
-     *                    if the buffer does not contain a valid external
-     *                    representation of an Erlang tuple.
+     *                if the buffer does not contain a valid external
+     *                representation of an Erlang tuple.
      */
     public OtpErlangTuple(final OtpInputStream buf)
-	    throws OtpErlangDecodeException {
-	final int arity = buf.read_tuple_head();
+            throws OtpErlangDecodeException {
+        final int arity = buf.read_tuple_head();
 
-	if (arity > 0) {
-	    elems = new OtpErlangObject[arity];
+        if (arity > 0) {
+            elems = new OtpErlangObject[arity];
 
-	    for (int i = 0; i < arity; i++) {
-		elems[i] = buf.read_any();
-	    }
-	} else {
-	    elems = NO_ELEMENTS;
-	}
+            for (int i = 0; i < arity; i++) {
+                elems[i] = buf.read_any();
+            }
+        } else {
+            elems = NO_ELEMENTS;
+        }
     }
 
     /**
      * Get the arity of the tuple.
-     * 
+     *
      * @return the number of elements contained in the tuple.
      */
     public int arity() {
-	return elems.length;
+        return elems.length;
     }
 
     /**
      * Get the specified element from the tuple.
-     * 
+     *
      * @param i
-     *                the index of the requested element. Tuple elements are
-     *                numbered as array elements, starting at 0.
-     * 
+     *            the index of the requested element. Tuple elements are
+     *            numbered as array elements, starting at 0.
+     *
      * @return the requested element, of null if i is not a valid element index.
      */
     public OtpErlangObject elementAt(final int i) {
-	if (i >= arity() || i < 0) {
-	    return null;
-	}
-	return elems[i];
+        if (i >= arity() || i < 0) {
+            return null;
+        }
+        return elems[i];
     }
 
     /**
      * Get all the elements from the tuple as an array.
-     * 
+     *
      * @return an array containing all of the tuple's elements.
      */
     public OtpErlangObject[] elements() {
-	final OtpErlangObject[] res = new OtpErlangObject[arity()];
-	System.arraycopy(elems, 0, res, 0, res.length);
-	return res;
+        final OtpErlangObject[] res = new OtpErlangObject[arity()];
+        System.arraycopy(elems, 0, res, 0, res.length);
+        return res;
     }
 
     /**
      * Get the string representation of the tuple.
-     * 
+     *
      * @return the string representation of the tuple.
      */
     @Override
     public String toString() {
-	int i;
-	final StringBuffer s = new StringBuffer();
-	final int arity = elems.length;
+        int i;
+        final StringBuffer s = new StringBuffer();
+        final int arity = elems.length;
 
-	s.append("{");
+        s.append("{");
 
-	for (i = 0; i < arity; i++) {
-	    if (i > 0) {
-		s.append(",");
-	    }
-	    s.append(elems[i].toString());
-	}
+        for (i = 0; i < arity; i++) {
+            if (i > 0) {
+                s.append(",");
+            }
+            s.append(elems[i].toString());
+        }
 
-	s.append("}");
+        s.append("}");
 
-	return s.toString();
+        return s.toString();
     }
 
     /**
      * Convert this tuple to the equivalent Erlang external representation.
-     * 
+     *
      * @param buf
-     *                an output stream to which the encoded tuple should be
-     *                written.
+     *            an output stream to which the encoded tuple should be written.
      */
     @Override
     public void encode(final OtpOutputStream buf) {
-	final int arity = elems.length;
+        final int arity = elems.length;
 
-	buf.write_tuple_head(arity);
+        buf.write_tuple_head(arity);
 
-	for (int i = 0; i < arity; i++) {
-	    buf.write_any(elems[i]);
-	}
+        for (int i = 0; i < arity; i++) {
+            buf.write_any(elems[i]);
+        }
     }
 
     /**
      * Determine if two tuples are equal. Tuples are equal if they have the same
      * arity and all of the elements are equal.
-     * 
+     *
      * @param o
-     *                the tuple to compare to.
-     * 
+     *            the tuple to compare to.
+     *
      * @return true if the tuples have the same arity and all the elements are
      *         equal.
      */
     @Override
     public boolean equals(final Object o) {
-	if (!(o instanceof OtpErlangTuple)) {
-	    return false;
-	}
+        if (!(o instanceof OtpErlangTuple)) {
+            return false;
+        }
 
-	final OtpErlangTuple t = (OtpErlangTuple) o;
-	final int a = arity();
+        final OtpErlangTuple t = (OtpErlangTuple) o;
+        final int a = arity();
 
-	if (a != t.arity()) {
-	    return false;
-	}
+        if (a != t.arity()) {
+            return false;
+        }
 
-	for (int i = 0; i < a; i++) {
-	    if (!elems[i].equals(t.elems[i])) {
-		return false; // early exit
-	    }
-	}
+        for (int i = 0; i < a; i++) {
+            if (!elems[i].equals(t.elems[i])) {
+                return false; // early exit
+            }
+        }
 
-	return true;
+        return true;
     }
-    
+
+    @Override
+    public <T> boolean match(final OtpErlangObject term, final T bindings) {
+        if (!(term instanceof OtpErlangTuple)) {
+            return false;
+        }
+        final OtpErlangTuple t = (OtpErlangTuple) term;
+        final int a = elems.length;
+        if (a != t.elems.length) {
+            return false;
+        }
+        for (int i = 0; i < a; i++) {
+            if (!elems[i].match(t.elems[i], bindings)) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    @Override
+    public <T> OtpErlangObject bind(final T binds) throws OtpErlangException {
+        final OtpErlangTuple tuple = (OtpErlangTuple) this.clone();
+        final int a = tuple.elems.length;
+        for (int i = 0; i < a; i++) {
+            final OtpErlangObject e = tuple.elems[i];
+            tuple.elems[i] = e.bind(binds);
+        }
+        return tuple;
+    }
+
     @Override
     protected int doHashCode() {
-	OtpErlangObject.Hash hash = new OtpErlangObject.Hash(9);
-	final int a = arity();
-	hash.combine(a);
-	for (int i = 0; i < a; i++) {
-	    hash.combine(elems[i].hashCode());
-	}
-	return hash.valueOf();
+        final OtpErlangObject.Hash hash = new OtpErlangObject.Hash(9);
+        final int a = arity();
+        hash.combine(a);
+        for (int i = 0; i < a; i++) {
+            hash.combine(elems[i].hashCode());
+        }
+        return hash.valueOf();
     }
-    
+
     @Override
     public Object clone() {
-	final OtpErlangTuple newTuple = (OtpErlangTuple) super.clone();
-	newTuple.elems = elems.clone();
-	return newTuple;
+        final OtpErlangTuple newTuple = (OtpErlangTuple) super.clone();
+        newTuple.elems = elems.clone();
+        return newTuple;
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangUInt.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangUInt.java
index a02996e437..f45cce87b2 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangUInt.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangUInt.java
@@ -1,24 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
-
 /**
  * Provides a Java representation of Erlang integral types.
  */
@@ -28,38 +27,38 @@ public class OtpErlangUInt extends OtpErlangLong {
 
     /**
      * Create an Erlang integer from the given value.
-     * 
+     *
      * @param i
-     *                the non-negative int value to use.
-     * 
+     *            the non-negative int value to use.
+     *
      * @exception OtpErlangRangeException
-     *                    if the value is negative.
+     *                if the value is negative.
      */
     public OtpErlangUInt(final int i) throws OtpErlangRangeException {
-	super(i);
+        super(i);
 
-    uIntValue();
+        uIntValue();
     }
 
     /**
      * Create an Erlang integer from a stream containing an integer encoded in
      * Erlang external format.
-     * 
+     *
      * @param buf
-     *                the stream containing the encoded value.
-     * 
+     *            the stream containing the encoded value.
+     *
      * @exception OtpErlangDecodeException
-     *                    if the buffer does not contain a valid external
-     *                    representation of an Erlang integer.
-     * 
+     *                if the buffer does not contain a valid external
+     *                representation of an Erlang integer.
+     *
      * @exception OtpErlangRangeException
-     *                    if the value is too large to be represented as an int,
-     *                    or the value is negative.
+     *                if the value is too large to be represented as an int, or
+     *                the value is negative.
      */
     public OtpErlangUInt(final OtpInputStream buf)
-	    throws OtpErlangRangeException, OtpErlangDecodeException {
-	super(buf);
+            throws OtpErlangRangeException, OtpErlangDecodeException {
+        super(buf);
 
-    uIntValue();
+        uIntValue();
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangUShort.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangUShort.java
index e9d251f815..96f6ed807b 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangUShort.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangUShort.java
@@ -1,24 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
-
 /**
  * Provides a Java representation of Erlang integral types.
  */
@@ -28,38 +27,38 @@ public class OtpErlangUShort extends OtpErlangLong {
 
     /**
      * Create an Erlang integer from the given value.
-     * 
+     *
      * @param s
-     *                the non-negative short value to use.
-     * 
+     *            the non-negative short value to use.
+     *
      * @exception OtpErlangRangeException
-     *                    if the value is negative.
+     *                if the value is negative.
      */
     public OtpErlangUShort(final short s) throws OtpErlangRangeException {
-	super(s);
+        super(s);
 
-    uShortValue();
+        uShortValue();
     }
 
     /**
      * Create an Erlang integer from a stream containing an integer encoded in
      * Erlang external format.
-     * 
+     *
      * @param buf
-     *                the stream containing the encoded value.
-     * 
+     *            the stream containing the encoded value.
+     *
      * @exception OtpErlangDecodeException
-     *                    if the buffer does not contain a valid external
-     *                    representation of an Erlang integer.
-     * 
+     *                if the buffer does not contain a valid external
+     *                representation of an Erlang integer.
+     *
      * @exception OtpErlangRangeException
-     *                    if the value is too large to be represented as a
-     *                    short, or the value is negative.
+     *                if the value is too large to be represented as a short, or
+     *                the value is negative.
      */
     public OtpErlangUShort(final OtpInputStream buf)
-	    throws OtpErlangRangeException, OtpErlangDecodeException {
-	super(buf);
+            throws OtpErlangRangeException, OtpErlangDecodeException {
+        super(buf);
 
-    uShortValue();
+        uShortValue();
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpException.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpException.java
index 874c7da104..0a8323c635 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpException.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpException.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -28,13 +28,13 @@ public abstract class OtpException extends Exception {
      * Provides no message.
      */
     public OtpException() {
-	super();
+        super();
     }
 
     /**
      * Provides a detailed message.
      */
     public OtpException(final String msg) {
-	super(msg);
+        super(msg);
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpExternal.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpExternal.java
index fa0fe18e95..eeb40462dc 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpExternal.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpExternal.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2013. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpInputStream.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpInputStream.java
index bab0629382..2762c83494 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpInputStream.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpInputStream.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2013. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -25,7 +25,7 @@ import java.util.Arrays;
 
 /**
  * Provides a stream for decoding Erlang terms from external format.
- * 
+ *
  * <p>
  * Note that this class is not synchronized, if you need synchronization you
  * must provide it yourself.
@@ -40,1211 +40,1211 @@ public class OtpInputStream extends ByteArrayInputStream {
      * @param buf
      */
     public OtpInputStream(final byte[] buf) {
-	this(buf, 0);
+        this(buf, 0);
     }
 
     /**
      * Create a stream from a buffer containing encoded Erlang terms.
-     * 
+     *
      * @param flags
      */
     public OtpInputStream(final byte[] buf, final int flags) {
-	super(buf);
-	this.flags = flags;
+        super(buf);
+        this.flags = flags;
     }
 
     /**
      * Create a stream from a buffer containing encoded Erlang terms at the
      * given offset and length.
-     * 
+     *
      * @param flags
      */
     public OtpInputStream(final byte[] buf, final int offset, final int length,
-	    final int flags) {
-	super(buf, offset, length);
-	this.flags = flags;
+            final int flags) {
+        super(buf, offset, length);
+        this.flags = flags;
     }
 
     /**
      * Get the current position in the stream.
-     * 
+     *
      * @return the current position in the stream.
      */
     public int getPos() {
-	return super.pos;
+        return super.pos;
     }
 
     /**
      * Set the current position in the stream.
-     * 
+     *
      * @param pos
      *            the position to move to in the stream. If pos indicates a
      *            position beyond the end of the stream, the position is move to
      *            the end of the stream instead. If pos is negative, the
      *            position is moved to the beginning of the stream instead.
-     * 
+     *
      * @return the previous position in the stream.
      */
     public int setPos(final int pos) {
-	final int oldpos = super.pos;
+        final int oldpos = super.pos;
 
-    int apos = pos;
-	if (pos > super.count) {
-        apos = super.count;
-	} else if (pos < 0) {
-        apos = 0;
-	}
+        int apos = pos;
+        if (pos > super.count) {
+            apos = super.count;
+        } else if (pos < 0) {
+            apos = 0;
+        }
 
-    super.pos = apos;
+        super.pos = apos;
 
-	return oldpos;
+        return oldpos;
     }
 
     /**
      * Read an array of bytes from the stream. The method reads at most
      * buf.length bytes from the input stream.
-     * 
+     *
      * @return the number of bytes read.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next byte cannot be read.
      */
     public int readN(final byte[] abuf) throws OtpErlangDecodeException {
-	return this.readN(abuf, 0, abuf.length);
+        return this.readN(abuf, 0, abuf.length);
     }
 
     /**
      * Read an array of bytes from the stream. The method reads at most len
      * bytes from the input stream into offset off of the buffer.
-     * 
+     *
      * @return the number of bytes read.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next byte cannot be read.
      */
     public int readN(final byte[] abuf, final int off, final int len)
-	    throws OtpErlangDecodeException {
-	if (len == 0 && available() == 0) {
-	    return 0;
-	}
-	final int i = super.read(abuf, off, len);
-	if (i < 0) {
-	    throw new OtpErlangDecodeException("Cannot read from input stream");
-	}
-	return i;
+            throws OtpErlangDecodeException {
+        if (len == 0 && available() == 0) {
+            return 0;
+        }
+        final int i = super.read(abuf, off, len);
+        if (i < 0) {
+            throw new OtpErlangDecodeException("Cannot read from input stream");
+        }
+        return i;
     }
 
     /**
      * Alias for peek1()
      */
     public int peek() throws OtpErlangDecodeException {
-	return peek1();
+        return peek1();
     }
 
     /**
      * Look ahead one position in the stream without consuming the byte found
      * there.
-     * 
+     *
      * @return the next byte in the stream, as an integer.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next byte cannot be read.
      */
     public int peek1() throws OtpErlangDecodeException {
-	int i;
-	try {
-	    i = super.buf[super.pos];
-	    if (i < 0) {
-		i += 256;
-	    }
-
-	    return i;
-	} catch (final Exception e) {
-	    throw new OtpErlangDecodeException("Cannot read from input stream");
-	}
+        int i;
+        try {
+            i = super.buf[super.pos];
+            if (i < 0) {
+                i += 256;
+            }
+
+            return i;
+        } catch (final Exception e) {
+            throw new OtpErlangDecodeException("Cannot read from input stream");
+        }
     }
 
     public int peek1skip_version() throws OtpErlangDecodeException {
-	int i = peek1();
-	if (i == OtpExternal.versionTag) {
-	    read1();
-	    i = peek1();
-	}
-	return i;
+        int i = peek1();
+        if (i == OtpExternal.versionTag) {
+            read1();
+            i = peek1();
+        }
+        return i;
     }
 
     /**
      * Read a one byte integer from the stream.
-     * 
+     *
      * @return the byte read, as an integer.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next byte cannot be read.
      */
     public int read1() throws OtpErlangDecodeException {
-	int i;
-	i = super.read();
+        int i;
+        i = super.read();
 
-	if (i < 0) {
-	    throw new OtpErlangDecodeException("Cannot read from input stream");
-	}
+        if (i < 0) {
+            throw new OtpErlangDecodeException("Cannot read from input stream");
+        }
 
-	return i;
+        return i;
     }
 
     public int read1skip_version() throws OtpErlangDecodeException {
-	int tag = read1();
-	if (tag == OtpExternal.versionTag) {
-	    tag = read1();
-	}
-	return tag;
+        int tag = read1();
+        if (tag == OtpExternal.versionTag) {
+            tag = read1();
+        }
+        return tag;
     }
 
     /**
      * Read a two byte big endian integer from the stream.
-     * 
+     *
      * @return the bytes read, converted from big endian to an integer.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next byte cannot be read.
      */
     public int read2BE() throws OtpErlangDecodeException {
-	final byte[] b = new byte[2];
-	try {
-	    super.read(b);
-	} catch (final IOException e) {
-	    throw new OtpErlangDecodeException("Cannot read from input stream");
-	}
-	return (b[0] << 8 & 0xff00) + (b[1] & 0xff);
+        final byte[] b = new byte[2];
+        try {
+            super.read(b);
+        } catch (final IOException e) {
+            throw new OtpErlangDecodeException("Cannot read from input stream");
+        }
+        return (b[0] << 8 & 0xff00) + (b[1] & 0xff);
     }
 
     /**
      * Read a four byte big endian integer from the stream.
-     * 
+     *
      * @return the bytes read, converted from big endian to an integer.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next byte cannot be read.
      */
     public int read4BE() throws OtpErlangDecodeException {
-	final byte[] b = new byte[4];
-	try {
-	    super.read(b);
-	} catch (final IOException e) {
-	    throw new OtpErlangDecodeException("Cannot read from input stream");
-	}
-	return (b[0] << 24 & 0xff000000) + (b[1] << 16 & 0xff0000)
-		+ (b[2] << 8 & 0xff00) + (b[3] & 0xff);
+        final byte[] b = new byte[4];
+        try {
+            super.read(b);
+        } catch (final IOException e) {
+            throw new OtpErlangDecodeException("Cannot read from input stream");
+        }
+        return (b[0] << 24 & 0xff000000) + (b[1] << 16 & 0xff0000)
+                + (b[2] << 8 & 0xff00) + (b[3] & 0xff);
     }
 
     /**
      * Read a two byte little endian integer from the stream.
-     * 
+     *
      * @return the bytes read, converted from little endian to an integer.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next byte cannot be read.
      */
     public int read2LE() throws OtpErlangDecodeException {
-	final byte[] b = new byte[2];
-	try {
-	    super.read(b);
-	} catch (final IOException e) {
-	    throw new OtpErlangDecodeException("Cannot read from input stream");
-	}
-	return (b[1] << 8 & 0xff00) + (b[0] & 0xff);
+        final byte[] b = new byte[2];
+        try {
+            super.read(b);
+        } catch (final IOException e) {
+            throw new OtpErlangDecodeException("Cannot read from input stream");
+        }
+        return (b[1] << 8 & 0xff00) + (b[0] & 0xff);
     }
 
     /**
      * Read a four byte little endian integer from the stream.
-     * 
+     *
      * @return the bytes read, converted from little endian to an integer.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next byte cannot be read.
      */
     public int read4LE() throws OtpErlangDecodeException {
-	final byte[] b = new byte[4];
-	try {
-	    super.read(b);
-	} catch (final IOException e) {
-	    throw new OtpErlangDecodeException("Cannot read from input stream");
-	}
-	return (b[3] << 24 & 0xff000000) + (b[2] << 16 & 0xff0000)
-		+ (b[1] << 8 & 0xff00) + (b[0] & 0xff);
+        final byte[] b = new byte[4];
+        try {
+            super.read(b);
+        } catch (final IOException e) {
+            throw new OtpErlangDecodeException("Cannot read from input stream");
+        }
+        return (b[3] << 24 & 0xff000000) + (b[2] << 16 & 0xff0000)
+                + (b[1] << 8 & 0xff00) + (b[0] & 0xff);
     }
 
     /**
      * Read a little endian integer from the stream.
-     * 
+     *
      * @param n
      *            the number of bytes to read
-     * 
+     *
      * @return the bytes read, converted from little endian to an integer.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next byte cannot be read.
      */
     public long readLE(final int n) throws OtpErlangDecodeException {
-	final byte[] b = new byte[n];
-	try {
-	    super.read(b);
-	} catch (final IOException e) {
-	    throw new OtpErlangDecodeException("Cannot read from input stream");
-	}
-	long v = 0;
-    int i = n;
-    while (i-- > 0) {
-        v = v << 8 | (long) b[i] & 0xff;
-	}
-	return v;
+        final byte[] b = new byte[n];
+        try {
+            super.read(b);
+        } catch (final IOException e) {
+            throw new OtpErlangDecodeException("Cannot read from input stream");
+        }
+        long v = 0;
+        int i = n;
+        while (i-- > 0) {
+            v = v << 8 | (long) b[i] & 0xff;
+        }
+        return v;
     }
 
     /**
      * Read a bigendian integer from the stream.
-     * 
+     *
      * @param n
      *            the number of bytes to read
-     * 
+     *
      * @return the bytes read, converted from big endian to an integer.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next byte cannot be read.
      */
     public long readBE(final int n) throws OtpErlangDecodeException {
-	final byte[] b = new byte[n];
-	try {
-	    super.read(b);
-	} catch (final IOException e) {
-	    throw new OtpErlangDecodeException("Cannot read from input stream");
-	}
-	long v = 0;
-	for (int i = 0; i < n; i++) {
-	    v = v << 8 | (long) b[i] & 0xff;
-	}
-	return v;
+        final byte[] b = new byte[n];
+        try {
+            super.read(b);
+        } catch (final IOException e) {
+            throw new OtpErlangDecodeException("Cannot read from input stream");
+        }
+        long v = 0;
+        for (int i = 0; i < n; i++) {
+            v = v << 8 | (long) b[i] & 0xff;
+        }
+        return v;
     }
 
     /**
      * Read an Erlang atom from the stream and interpret the value as a boolean.
-     * 
+     *
      * @return true if the atom at the current position in the stream contains
      *         the value 'true' (ignoring case), false otherwise.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream is not an atom.
      */
     public boolean read_boolean() throws OtpErlangDecodeException {
-	return Boolean.valueOf(read_atom()).booleanValue();
+        return Boolean.valueOf(read_atom()).booleanValue();
     }
 
     /**
      * Read an Erlang atom from the stream.
-     * 
+     *
      * @return a String containing the value of the atom.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream is not an atom.
      */
     @SuppressWarnings("fallthrough")
     public String read_atom() throws OtpErlangDecodeException {
-	int tag;
-	int len = -1;
-	byte[] strbuf;
-	String atom;
-
-	tag = read1skip_version();
-
-	switch (tag) {
-
-	case OtpExternal.atomTag:
-	    len = read2BE();
-	    strbuf = new byte[len];
-	    this.readN(strbuf);
-	    try {
-		atom = new String(strbuf, "ISO-8859-1");
-	    } catch (final java.io.UnsupportedEncodingException e) {
-		throw new OtpErlangDecodeException(
-		    "Failed to decode ISO-8859-1 atom");
-	    }
-	    if (atom.length() > OtpExternal.maxAtomLength) {
-		/*
-		 * Throwing an exception would be better I think,
-		 * but truncation seems to be the way it has
-		 * been done in other parts of OTP...
-		 */
-		atom = atom.substring(0, OtpExternal.maxAtomLength);
-	    }
-	    break;
-
-	case OtpExternal.smallAtomUtf8Tag:
-	    len = read1();
-        // fall-through
-	case OtpExternal.atomUtf8Tag:
-	    if (len < 0) {
-		len = read2BE();
-	    }
-	    strbuf = new byte[len];
-	    this.readN(strbuf);
-	    try {
-		atom = new String(strbuf, "UTF-8");
-	    } catch (final java.io.UnsupportedEncodingException e) {
-		throw new OtpErlangDecodeException(
-		    "Failed to decode UTF-8 atom");
-	    }
-	    if (atom.codePointCount(0, atom.length()) > OtpExternal.maxAtomLength) {
-		/*
-		 * Throwing an exception would be better I think,
-		 * but truncation seems to be the way it has
-		 * been done in other parts of OTP...
-		 */
-		final int[] cps = OtpErlangString.stringToCodePoints(atom);
-		atom = new String(cps, 0, OtpExternal.maxAtomLength);
-	    }
-	    break;
-
-	default:
-	    throw new OtpErlangDecodeException(
-		"wrong tag encountered, expected " + OtpExternal.atomTag
-		+ ", or "  + OtpExternal.atomUtf8Tag + ", got " + tag);
-	}
-
-	return atom;
+        int tag;
+        int len = -1;
+        byte[] strbuf;
+        String atom;
+
+        tag = read1skip_version();
+
+        switch (tag) {
+
+        case OtpExternal.atomTag:
+            len = read2BE();
+            strbuf = new byte[len];
+            this.readN(strbuf);
+            try {
+                atom = new String(strbuf, "ISO-8859-1");
+            } catch (final java.io.UnsupportedEncodingException e) {
+                throw new OtpErlangDecodeException(
+                        "Failed to decode ISO-8859-1 atom");
+            }
+            if (atom.length() > OtpExternal.maxAtomLength) {
+                /*
+                 * Throwing an exception would be better I think, but truncation
+                 * seems to be the way it has been done in other parts of OTP...
+                 */
+                atom = atom.substring(0, OtpExternal.maxAtomLength);
+            }
+            break;
+
+        case OtpExternal.smallAtomUtf8Tag:
+            len = read1();
+            // fall-through
+        case OtpExternal.atomUtf8Tag:
+            if (len < 0) {
+                len = read2BE();
+            }
+            strbuf = new byte[len];
+            this.readN(strbuf);
+            try {
+                atom = new String(strbuf, "UTF-8");
+            } catch (final java.io.UnsupportedEncodingException e) {
+                throw new OtpErlangDecodeException(
+                        "Failed to decode UTF-8 atom");
+            }
+            if (atom.codePointCount(0, atom.length()) > OtpExternal.maxAtomLength) {
+                /*
+                 * Throwing an exception would be better I think, but truncation
+                 * seems to be the way it has been done in other parts of OTP...
+                 */
+                final int[] cps = OtpErlangString.stringToCodePoints(atom);
+                atom = new String(cps, 0, OtpExternal.maxAtomLength);
+            }
+            break;
+
+        default:
+            throw new OtpErlangDecodeException(
+                    "wrong tag encountered, expected " + OtpExternal.atomTag
+                            + ", or " + OtpExternal.atomUtf8Tag + ", got "
+                            + tag);
+        }
+
+        return atom;
     }
 
     /**
      * Read an Erlang binary from the stream.
-     * 
+     *
      * @return a byte array containing the value of the binary.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream is not a binary.
      */
     public byte[] read_binary() throws OtpErlangDecodeException {
-	int tag;
-	int len;
-	byte[] bin;
+        int tag;
+        int len;
+        byte[] bin;
 
-	tag = read1skip_version();
+        tag = read1skip_version();
 
-	if (tag != OtpExternal.binTag) {
-	    throw new OtpErlangDecodeException(
-		    "Wrong tag encountered, expected " + OtpExternal.binTag
-			    + ", got " + tag);
-	}
+        if (tag != OtpExternal.binTag) {
+            throw new OtpErlangDecodeException(
+                    "Wrong tag encountered, expected " + OtpExternal.binTag
+                            + ", got " + tag);
+        }
 
-	len = read4BE();
+        len = read4BE();
 
-	bin = new byte[len];
-	this.readN(bin);
+        bin = new byte[len];
+        this.readN(bin);
 
-	return bin;
+        return bin;
     }
 
     /**
      * Read an Erlang bitstr from the stream.
-     * 
+     *
      * @param pad_bits
      *            an int array whose first element will be set to the number of
      *            pad bits in the last byte.
-     * 
+     *
      * @return a byte array containing the value of the bitstr.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream is not a bitstr.
      */
     public byte[] read_bitstr(final int pad_bits[])
-	    throws OtpErlangDecodeException {
-	int tag;
-	int len;
-	byte[] bin;
-
-	tag = read1skip_version();
-
-	if (tag != OtpExternal.bitBinTag) {
-	    throw new OtpErlangDecodeException(
-		    "Wrong tag encountered, expected " + OtpExternal.bitBinTag
-			    + ", got " + tag);
-	}
-
-	len = read4BE();
-	bin = new byte[len];
-	final int tail_bits = read1();
-	if (tail_bits < 0 || 7 < tail_bits) {
-	    throw new OtpErlangDecodeException(
-		    "Wrong tail bit count in bitstr: " + tail_bits);
-	}
-	if (len == 0 && tail_bits != 0) {
-	    throw new OtpErlangDecodeException(
-		    "Length 0 on bitstr with tail bit count: " + tail_bits);
-	}
-	this.readN(bin);
-
-	pad_bits[0] = 8 - tail_bits;
-	return bin;
+            throws OtpErlangDecodeException {
+        int tag;
+        int len;
+        byte[] bin;
+
+        tag = read1skip_version();
+
+        if (tag != OtpExternal.bitBinTag) {
+            throw new OtpErlangDecodeException(
+                    "Wrong tag encountered, expected " + OtpExternal.bitBinTag
+                            + ", got " + tag);
+        }
+
+        len = read4BE();
+        bin = new byte[len];
+        final int tail_bits = read1();
+        if (tail_bits < 0 || 7 < tail_bits) {
+            throw new OtpErlangDecodeException(
+                    "Wrong tail bit count in bitstr: " + tail_bits);
+        }
+        if (len == 0 && tail_bits != 0) {
+            throw new OtpErlangDecodeException(
+                    "Length 0 on bitstr with tail bit count: " + tail_bits);
+        }
+        this.readN(bin);
+
+        pad_bits[0] = 8 - tail_bits;
+        return bin;
     }
 
     /**
      * Read an Erlang float from the stream.
-     * 
+     *
      * @return the float value.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream is not a float.
      */
     public float read_float() throws OtpErlangDecodeException {
-	final double d = read_double();
-	return (float) d;
+        final double d = read_double();
+        return (float) d;
     }
 
     /**
      * Read an Erlang float from the stream.
-     * 
+     *
      * @return the float value, as a double.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream is not a float.
      */
     public double read_double() throws OtpErlangDecodeException {
-	int tag;
-
-	// parse the stream
-	tag = read1skip_version();
-
-	switch (tag) {
-	case OtpExternal.newFloatTag: {
-	    return Double.longBitsToDouble(readBE(8));
-	}
-	case OtpExternal.floatTag: {
-	    BigDecimal val;
-	    int epos;
-	    int exp;
-	    final byte[] strbuf = new byte[31];
-	    String str;
-
-	    // get the string
-	    this.readN(strbuf);
-	    str = OtpErlangString.newString(strbuf);
-
-	    // find the exponent prefix 'e' in the string
-	    epos = str.indexOf('e', 0);
-
-	    if (epos < 0) {
-		throw new OtpErlangDecodeException("Invalid float format: '"
-			+ str + "'");
-	    }
-
-	    // remove the sign from the exponent, if positive
-	    String estr = str.substring(epos + 1).trim();
-
-	    if (estr.substring(0, 1).equals("+")) {
-		estr = estr.substring(1);
-	    }
-
-	    // now put the mantissa and exponent together
-	    exp = Integer.valueOf(estr).intValue();
-	    val = new BigDecimal(str.substring(0, epos)).movePointRight(exp);
-
-	    return val.doubleValue();
-	}
-	default:
-	    throw new OtpErlangDecodeException(
-		    "Wrong tag encountered, expected "
-			    + OtpExternal.newFloatTag + ", got " + tag);
-	}
+        int tag;
+
+        // parse the stream
+        tag = read1skip_version();
+
+        switch (tag) {
+        case OtpExternal.newFloatTag: {
+            return Double.longBitsToDouble(readBE(8));
+        }
+        case OtpExternal.floatTag: {
+            BigDecimal val;
+            int epos;
+            int exp;
+            final byte[] strbuf = new byte[31];
+            String str;
+
+            // get the string
+            this.readN(strbuf);
+            str = OtpErlangString.newString(strbuf);
+
+            // find the exponent prefix 'e' in the string
+            epos = str.indexOf('e', 0);
+
+            if (epos < 0) {
+                throw new OtpErlangDecodeException("Invalid float format: '"
+                        + str + "'");
+            }
+
+            // remove the sign from the exponent, if positive
+            String estr = str.substring(epos + 1).trim();
+
+            if (estr.substring(0, 1).equals("+")) {
+                estr = estr.substring(1);
+            }
+
+            // now put the mantissa and exponent together
+            exp = Integer.valueOf(estr).intValue();
+            val = new BigDecimal(str.substring(0, epos)).movePointRight(exp);
+
+            return val.doubleValue();
+        }
+        default:
+            throw new OtpErlangDecodeException(
+                    "Wrong tag encountered, expected "
+                            + OtpExternal.newFloatTag + ", got " + tag);
+        }
     }
 
     /**
      * Read one byte from the stream.
-     * 
+     *
      * @return the byte read.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next byte cannot be read.
      */
     public byte read_byte() throws OtpErlangDecodeException {
-	final long l = this.read_long(false);
-	final byte i = (byte) l;
+        final long l = this.read_long(false);
+        final byte i = (byte) l;
 
-	if (l != i) {
-	    throw new OtpErlangDecodeException("Value does not fit in byte: "
-		    + l);
-	}
+        if (l != i) {
+            throw new OtpErlangDecodeException("Value does not fit in byte: "
+                    + l);
+        }
 
-	return i;
+        return i;
     }
 
     /**
      * Read a character from the stream.
-     * 
+     *
      * @return the character value.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream is not an integer that can
      *                be represented as a char.
      */
     public char read_char() throws OtpErlangDecodeException {
-	final long l = this.read_long(true);
-	final char i = (char) l;
+        final long l = this.read_long(true);
+        final char i = (char) l;
 
-	if (l != (i & 0xffffL)) {
-	    throw new OtpErlangDecodeException("Value does not fit in char: "
-		    + l);
-	}
+        if (l != (i & 0xffffL)) {
+            throw new OtpErlangDecodeException("Value does not fit in char: "
+                    + l);
+        }
 
-	return i;
+        return i;
     }
 
     /**
      * Read an unsigned integer from the stream.
-     * 
+     *
      * @return the integer value.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream can not be represented as a
      *                positive integer.
      */
     public int read_uint() throws OtpErlangDecodeException {
-	final long l = this.read_long(true);
-	final int i = (int) l;
+        final long l = this.read_long(true);
+        final int i = (int) l;
 
-	if (l != (i & 0xFFFFffffL)) {
-	    throw new OtpErlangDecodeException("Value does not fit in uint: "
-		    + l);
-	}
+        if (l != (i & 0xFFFFffffL)) {
+            throw new OtpErlangDecodeException("Value does not fit in uint: "
+                    + l);
+        }
 
-	return i;
+        return i;
     }
 
     /**
      * Read an integer from the stream.
-     * 
+     *
      * @return the integer value.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream can not be represented as
      *                an integer.
      */
     public int read_int() throws OtpErlangDecodeException {
-	final long l = this.read_long(false);
-	final int i = (int) l;
+        final long l = this.read_long(false);
+        final int i = (int) l;
 
-	if (l != i) {
-	    throw new OtpErlangDecodeException("Value does not fit in int: "
-		    + l);
-	}
+        if (l != i) {
+            throw new OtpErlangDecodeException("Value does not fit in int: "
+                    + l);
+        }
 
-	return i;
+        return i;
     }
 
     /**
      * Read an unsigned short from the stream.
-     * 
+     *
      * @return the short value.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream can not be represented as a
      *                positive short.
      */
     public short read_ushort() throws OtpErlangDecodeException {
-	final long l = this.read_long(true);
-	final short i = (short) l;
+        final long l = this.read_long(true);
+        final short i = (short) l;
 
-	if (l != (i & 0xffffL)) {
-	    throw new OtpErlangDecodeException("Value does not fit in ushort: "
-		    + l);
-	}
+        if (l != (i & 0xffffL)) {
+            throw new OtpErlangDecodeException("Value does not fit in ushort: "
+                    + l);
+        }
 
-	return i;
+        return i;
     }
 
     /**
      * Read a short from the stream.
-     * 
+     *
      * @return the short value.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream can not be represented as a
      *                short.
      */
     public short read_short() throws OtpErlangDecodeException {
-	final long l = this.read_long(false);
-	final short i = (short) l;
+        final long l = this.read_long(false);
+        final short i = (short) l;
 
-	if (l != i) {
-	    throw new OtpErlangDecodeException("Value does not fit in short: "
-		    + l);
-	}
+        if (l != i) {
+            throw new OtpErlangDecodeException("Value does not fit in short: "
+                    + l);
+        }
 
-	return i;
+        return i;
     }
 
     /**
      * Read an unsigned long from the stream.
-     * 
+     *
      * @return the long value.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream can not be represented as a
      *                positive long.
      */
     public long read_ulong() throws OtpErlangDecodeException {
-	return this.read_long(true);
+        return this.read_long(true);
     }
 
     /**
      * Read a long from the stream.
-     * 
+     *
      * @return the long value.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream can not be represented as a
      *                long.
      */
     public long read_long() throws OtpErlangDecodeException {
-	return this.read_long(false);
+        return this.read_long(false);
     }
 
     public long read_long(final boolean unsigned)
-	    throws OtpErlangDecodeException {
-	final byte[] b = read_integer_byte_array();
-	return OtpInputStream.byte_array_to_long(b, unsigned);
+            throws OtpErlangDecodeException {
+        final byte[] b = read_integer_byte_array();
+        return OtpInputStream.byte_array_to_long(b, unsigned);
     }
 
     /**
      * Read an integer from the stream.
-     * 
+     *
      * @return the value as a big endian 2's complement byte array.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream is not an integer.
      */
     public byte[] read_integer_byte_array() throws OtpErlangDecodeException {
-	int tag;
-	byte[] nb;
-
-	tag = read1skip_version();
-
-	switch (tag) {
-	case OtpExternal.smallIntTag:
-	    nb = new byte[2];
-	    nb[0] = 0;
-	    nb[1] = (byte) read1();
-	    break;
-
-	case OtpExternal.intTag:
-	    nb = new byte[4];
-	    if (this.readN(nb) != 4) { // Big endian
-		throw new OtpErlangDecodeException(
-			"Cannot read from intput stream");
-	    }
-	    break;
-
-	case OtpExternal.smallBigTag:
-	case OtpExternal.largeBigTag:
-	    int arity;
-	    int sign;
-	    if (tag == OtpExternal.smallBigTag) {
-		arity = read1();
-		sign = read1();
-	    } else {
-		arity = read4BE();
-		sign = read1();
-		if (arity + 1 < 0) {
-		    throw new OtpErlangDecodeException(
-			    "Value of largeBig does not fit in BigInteger, arity "
-				    + arity + " sign " + sign);
-		}
-	    }
-	    nb = new byte[arity + 1];
-	    // Value is read as little endian. The big end is augumented
-	    // with one zero byte to make the value 2's complement positive.
-	    if (this.readN(nb, 0, arity) != arity) {
-		throw new OtpErlangDecodeException(
-			"Cannot read from intput stream");
-	    }
-	    // Reverse the array to make it big endian.
-	    for (int i = 0, j = nb.length; i < j--; i++) {
-		// Swap [i] with [j]
-		final byte b = nb[i];
-		nb[i] = nb[j];
-		nb[j] = b;
-	    }
-	    if (sign != 0) {
-		// 2's complement negate the big endian value in the array
-		int c = 1; // Carry
-		for (int j = nb.length; j-- > 0;) {
-		    c = (~nb[j] & 0xFF) + c;
-		    nb[j] = (byte) c;
-		    c >>= 8;
-		}
-	    }
-	    break;
-
-	default:
-	    throw new OtpErlangDecodeException("Not valid integer tag: " + tag);
-	}
-
-	return nb;
+        int tag;
+        byte[] nb;
+
+        tag = read1skip_version();
+
+        switch (tag) {
+        case OtpExternal.smallIntTag:
+            nb = new byte[2];
+            nb[0] = 0;
+            nb[1] = (byte) read1();
+            break;
+
+        case OtpExternal.intTag:
+            nb = new byte[4];
+            if (this.readN(nb) != 4) { // Big endian
+                throw new OtpErlangDecodeException(
+                        "Cannot read from intput stream");
+            }
+            break;
+
+        case OtpExternal.smallBigTag:
+        case OtpExternal.largeBigTag:
+            int arity;
+            int sign;
+            if (tag == OtpExternal.smallBigTag) {
+                arity = read1();
+                sign = read1();
+            } else {
+                arity = read4BE();
+                sign = read1();
+                if (arity + 1 < 0) {
+                    throw new OtpErlangDecodeException(
+                            "Value of largeBig does not fit in BigInteger, arity "
+                                    + arity + " sign " + sign);
+                }
+            }
+            nb = new byte[arity + 1];
+            // Value is read as little endian. The big end is augumented
+            // with one zero byte to make the value 2's complement positive.
+            if (this.readN(nb, 0, arity) != arity) {
+                throw new OtpErlangDecodeException(
+                        "Cannot read from intput stream");
+            }
+            // Reverse the array to make it big endian.
+            for (int i = 0, j = nb.length; i < j--; i++) {
+                // Swap [i] with [j]
+                final byte b = nb[i];
+                nb[i] = nb[j];
+                nb[j] = b;
+            }
+            if (sign != 0) {
+                // 2's complement negate the big endian value in the array
+                int c = 1; // Carry
+                for (int j = nb.length; j-- > 0;) {
+                    c = (~nb[j] & 0xFF) + c;
+                    nb[j] = (byte) c;
+                    c >>= 8;
+                }
+            }
+            break;
+
+        default:
+            throw new OtpErlangDecodeException("Not valid integer tag: " + tag);
+        }
+
+        return nb;
     }
 
     public static long byte_array_to_long(final byte[] b, final boolean unsigned)
-	    throws OtpErlangDecodeException {
-	long v;
-	switch (b.length) {
-	case 0:
-	    v = 0;
-	    break;
-	case 2:
-	    v = ((b[0] & 0xFF) << 8) + (b[1] & 0xFF);
-	    v = (short) v; // Sign extend
-	    if (v < 0 && unsigned) {
-		throw new OtpErlangDecodeException("Value not unsigned: " + v);
-	    }
-	    break;
-	case 4:
-	    v = ((b[0] & 0xFF) << 24) + ((b[1] & 0xFF) << 16)
-		    + ((b[2] & 0xFF) << 8) + (b[3] & 0xFF);
-	    v = (int) v; // Sign extend
-	    if (v < 0 && unsigned) {
-		throw new OtpErlangDecodeException("Value not unsigned: " + v);
-	    }
-	    break;
-	default:
-	    int i = 0;
-	    final byte c = b[i];
-	    // Skip non-essential leading bytes
-	    if (unsigned) {
-		if (c < 0) {
-		    throw new OtpErlangDecodeException("Value not unsigned: "
-			    + Arrays.toString(b));
-		}
-		while (b[i] == 0) {
-		    i++; // Skip leading zero sign bytes
-		}
-	    } else {
-		if (c == 0 || c == -1) { // Leading sign byte
-		    i = 1;
-		    // Skip all leading sign bytes
-		    while (i < b.length && b[i] == c) {
-			i++;
-		    }
-		    if (i < b.length) {
-			// Check first non-sign byte to see if its sign
-			// matches the whole number's sign. If not one more
-			// byte is needed to represent the value.
-			if (((c ^ b[i]) & 0x80) != 0) {
-			    i--;
-			}
-		    }
-		}
-	    }
-	    if (b.length - i > 8) {
-		// More than 64 bits of value
-		throw new OtpErlangDecodeException(
-			"Value does not fit in long: " + Arrays.toString(b));
-	    }
-	    // Convert the necessary bytes
-	    for (v = c < 0 ? -1 : 0; i < b.length; i++) {
-		v = v << 8 | b[i] & 0xFF;
-	    }
-	}
-	return v;
+            throws OtpErlangDecodeException {
+        long v;
+        switch (b.length) {
+        case 0:
+            v = 0;
+            break;
+        case 2:
+            v = ((b[0] & 0xFF) << 8) + (b[1] & 0xFF);
+            v = (short) v; // Sign extend
+            if (v < 0 && unsigned) {
+                throw new OtpErlangDecodeException("Value not unsigned: " + v);
+            }
+            break;
+        case 4:
+            v = ((b[0] & 0xFF) << 24) + ((b[1] & 0xFF) << 16)
+                    + ((b[2] & 0xFF) << 8) + (b[3] & 0xFF);
+            v = (int) v; // Sign extend
+            if (v < 0 && unsigned) {
+                throw new OtpErlangDecodeException("Value not unsigned: " + v);
+            }
+            break;
+        default:
+            int i = 0;
+            final byte c = b[i];
+            // Skip non-essential leading bytes
+            if (unsigned) {
+                if (c < 0) {
+                    throw new OtpErlangDecodeException("Value not unsigned: "
+                            + Arrays.toString(b));
+                }
+                while (b[i] == 0) {
+                    i++; // Skip leading zero sign bytes
+                }
+            } else {
+                if (c == 0 || c == -1) { // Leading sign byte
+                    i = 1;
+                    // Skip all leading sign bytes
+                    while (i < b.length && b[i] == c) {
+                        i++;
+                    }
+                    if (i < b.length) {
+                        // Check first non-sign byte to see if its sign
+                        // matches the whole number's sign. If not one more
+                        // byte is needed to represent the value.
+                        if (((c ^ b[i]) & 0x80) != 0) {
+                            i--;
+                        }
+                    }
+                }
+            }
+            if (b.length - i > 8) {
+                // More than 64 bits of value
+                throw new OtpErlangDecodeException(
+                        "Value does not fit in long: " + Arrays.toString(b));
+            }
+            // Convert the necessary bytes
+            for (v = c < 0 ? -1 : 0; i < b.length; i++) {
+                v = v << 8 | b[i] & 0xFF;
+            }
+        }
+        return v;
     }
 
     /**
      * Read a list header from the stream.
-     * 
+     *
      * @return the arity of the list.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream is not a list.
      */
     public int read_list_head() throws OtpErlangDecodeException {
-	int arity = 0;
-	final int tag = read1skip_version();
+        int arity = 0;
+        final int tag = read1skip_version();
 
-	switch (tag) {
-	case OtpExternal.nilTag:
-	    arity = 0;
-	    break;
+        switch (tag) {
+        case OtpExternal.nilTag:
+            arity = 0;
+            break;
 
-	case OtpExternal.stringTag:
-	    arity = read2BE();
-	    break;
+        case OtpExternal.stringTag:
+            arity = read2BE();
+            break;
 
-	case OtpExternal.listTag:
-	    arity = read4BE();
-	    break;
+        case OtpExternal.listTag:
+            arity = read4BE();
+            break;
 
-	default:
-	    throw new OtpErlangDecodeException("Not valid list tag: " + tag);
-	}
+        default:
+            throw new OtpErlangDecodeException("Not valid list tag: " + tag);
+        }
 
-	return arity;
+        return arity;
     }
 
     /**
      * Read a tuple header from the stream.
-     * 
+     *
      * @return the arity of the tuple.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream is not a tuple.
      */
     public int read_tuple_head() throws OtpErlangDecodeException {
-	int arity = 0;
-	final int tag = read1skip_version();
+        int arity = 0;
+        final int tag = read1skip_version();
 
-	// decode the tuple header and get arity
-	switch (tag) {
-	case OtpExternal.smallTupleTag:
-	    arity = read1();
-	    break;
+        // decode the tuple header and get arity
+        switch (tag) {
+        case OtpExternal.smallTupleTag:
+            arity = read1();
+            break;
 
-	case OtpExternal.largeTupleTag:
-	    arity = read4BE();
-	    break;
+        case OtpExternal.largeTupleTag:
+            arity = read4BE();
+            break;
 
-	default:
-	    throw new OtpErlangDecodeException("Not valid tuple tag: " + tag);
-	}
+        default:
+            throw new OtpErlangDecodeException("Not valid tuple tag: " + tag);
+        }
 
-	return arity;
+        return arity;
     }
 
     /**
      * Read an empty list from the stream.
-     * 
+     *
      * @return zero (the arity of the list).
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream is not an empty list.
      */
     public int read_nil() throws OtpErlangDecodeException {
-	int arity = 0;
-	final int tag = read1skip_version();
+        int arity = 0;
+        final int tag = read1skip_version();
 
-	switch (tag) {
-	case OtpExternal.nilTag:
-	    arity = 0;
-	    break;
+        switch (tag) {
+        case OtpExternal.nilTag:
+            arity = 0;
+            break;
 
-	default:
-	    throw new OtpErlangDecodeException("Not valid nil tag: " + tag);
-	}
+        default:
+            throw new OtpErlangDecodeException("Not valid nil tag: " + tag);
+        }
 
-	return arity;
+        return arity;
     }
 
     /**
      * Read an Erlang PID from the stream.
-     * 
+     *
      * @return the value of the PID.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream is not an Erlang PID.
      */
     public OtpErlangPid read_pid() throws OtpErlangDecodeException {
-	String node;
-	int id;
-	int serial;
-	int creation;
-	int tag;
-
-	tag = read1skip_version();
-
-	if (tag != OtpExternal.pidTag) {
-	    throw new OtpErlangDecodeException(
-		    "Wrong tag encountered, expected " + OtpExternal.pidTag
-			    + ", got " + tag);
-	}
-
-	node = read_atom();
-	id = read4BE() & 0x7fff; // 15 bits
-	serial = read4BE() & 0x1fff; // 13 bits
-	creation = read1() & 0x03; // 2 bits
-
-	return new OtpErlangPid(node, id, serial, creation);
+        String node;
+        int id;
+        int serial;
+        int creation;
+        int tag;
+
+        tag = read1skip_version();
+
+        if (tag != OtpExternal.pidTag) {
+            throw new OtpErlangDecodeException(
+                    "Wrong tag encountered, expected " + OtpExternal.pidTag
+                            + ", got " + tag);
+        }
+
+        node = read_atom();
+        id = read4BE() & 0x7fff; // 15 bits
+        serial = read4BE() & 0x1fff; // 13 bits
+        creation = read1() & 0x03; // 2 bits
+
+        return new OtpErlangPid(node, id, serial, creation);
     }
 
     /**
      * Read an Erlang port from the stream.
-     * 
+     *
      * @return the value of the port.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream is not an Erlang port.
      */
     public OtpErlangPort read_port() throws OtpErlangDecodeException {
-	String node;
-	int id;
-	int creation;
-	int tag;
+        String node;
+        int id;
+        int creation;
+        int tag;
 
-	tag = read1skip_version();
+        tag = read1skip_version();
 
-	if (tag != OtpExternal.portTag) {
-	    throw new OtpErlangDecodeException(
-		    "Wrong tag encountered, expected " + OtpExternal.portTag
-			    + ", got " + tag);
-	}
+        if (tag != OtpExternal.portTag) {
+            throw new OtpErlangDecodeException(
+                    "Wrong tag encountered, expected " + OtpExternal.portTag
+                            + ", got " + tag);
+        }
 
-	node = read_atom();
-	id = read4BE() & 0xfffffff; // 28 bits
-	creation = read1() & 0x03; // 2 bits
+        node = read_atom();
+        id = read4BE() & 0xfffffff; // 28 bits
+        creation = read1() & 0x03; // 2 bits
 
-	return new OtpErlangPort(node, id, creation);
+        return new OtpErlangPort(node, id, creation);
     }
 
     /**
      * Read an Erlang reference from the stream.
-     * 
+     *
      * @return the value of the reference
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream is not an Erlang reference.
      */
     public OtpErlangRef read_ref() throws OtpErlangDecodeException {
-	String node;
-	int id;
-	int creation;
-	int tag;
-
-	tag = read1skip_version();
-
-	switch (tag) {
-	case OtpExternal.refTag:
-	    node = read_atom();
-	    id = read4BE() & 0x3ffff; // 18 bits
-	    creation = read1() & 0x03; // 2 bits
-	    return new OtpErlangRef(node, id, creation);
-
-	case OtpExternal.newRefTag:
-	    final int arity = read2BE();
-	    node = read_atom();
-	    creation = read1() & 0x03; // 2 bits
-
-	    final int[] ids = new int[arity];
-	    for (int i = 0; i < arity; i++) {
-		ids[i] = read4BE();
-	    }
-	    ids[0] &= 0x3ffff; // first id gets truncated to 18 bits
-	    return new OtpErlangRef(node, ids, creation);
-
-	default:
-	    throw new OtpErlangDecodeException(
-		    "Wrong tag encountered, expected ref, got " + tag);
-	}
+        String node;
+        int id;
+        int creation;
+        int tag;
+
+        tag = read1skip_version();
+
+        switch (tag) {
+        case OtpExternal.refTag:
+            node = read_atom();
+            id = read4BE() & 0x3ffff; // 18 bits
+            creation = read1() & 0x03; // 2 bits
+            return new OtpErlangRef(node, id, creation);
+
+        case OtpExternal.newRefTag:
+            final int arity = read2BE();
+            node = read_atom();
+            creation = read1() & 0x03; // 2 bits
+
+            final int[] ids = new int[arity];
+            for (int i = 0; i < arity; i++) {
+                ids[i] = read4BE();
+            }
+            ids[0] &= 0x3ffff; // first id gets truncated to 18 bits
+            return new OtpErlangRef(node, ids, creation);
+
+        default:
+            throw new OtpErlangDecodeException(
+                    "Wrong tag encountered, expected ref, got " + tag);
+        }
     }
 
     public OtpErlangFun read_fun() throws OtpErlangDecodeException {
-	final int tag = read1skip_version();
-	if (tag == OtpExternal.funTag) {
-	    final int nFreeVars = read4BE();
-	    final OtpErlangPid pid = read_pid();
-	    final String module = read_atom();
-	    final long index = read_long();
-	    final long uniq = read_long();
-	    final OtpErlangObject[] freeVars = new OtpErlangObject[nFreeVars];
-	    for (int i = 0; i < nFreeVars; ++i) {
-		freeVars[i] = read_any();
-	    }
-	    return new OtpErlangFun(pid, module, index, uniq, freeVars);
-	} else if (tag == OtpExternal.newFunTag) {
-        read4BE();
-	    final int arity = read1();
-	    final byte[] md5 = new byte[16];
-	    readN(md5);
-	    final int index = read4BE();
-	    final int nFreeVars = read4BE();
-	    final String module = read_atom();
-	    final long oldIndex = read_long();
-	    final long uniq = read_long();
-	    final OtpErlangPid pid = read_pid();
-	    final OtpErlangObject[] freeVars = new OtpErlangObject[nFreeVars];
-	    for (int i = 0; i < nFreeVars; ++i) {
-		freeVars[i] = read_any();
-	    }
-	    return new OtpErlangFun(pid, module, arity, md5, index, oldIndex,
-		    uniq, freeVars);
-	} else {
-	    throw new OtpErlangDecodeException(
-		    "Wrong tag encountered, expected fun, got " + tag);
-	}
+        final int tag = read1skip_version();
+        if (tag == OtpExternal.funTag) {
+            final int nFreeVars = read4BE();
+            final OtpErlangPid pid = read_pid();
+            final String module = read_atom();
+            final long index = read_long();
+            final long uniq = read_long();
+            final OtpErlangObject[] freeVars = new OtpErlangObject[nFreeVars];
+            for (int i = 0; i < nFreeVars; ++i) {
+                freeVars[i] = read_any();
+            }
+            return new OtpErlangFun(pid, module, index, uniq, freeVars);
+        } else if (tag == OtpExternal.newFunTag) {
+            read4BE();
+            final int arity = read1();
+            final byte[] md5 = new byte[16];
+            readN(md5);
+            final int index = read4BE();
+            final int nFreeVars = read4BE();
+            final String module = read_atom();
+            final long oldIndex = read_long();
+            final long uniq = read_long();
+            final OtpErlangPid pid = read_pid();
+            final OtpErlangObject[] freeVars = new OtpErlangObject[nFreeVars];
+            for (int i = 0; i < nFreeVars; ++i) {
+                freeVars[i] = read_any();
+            }
+            return new OtpErlangFun(pid, module, arity, md5, index, oldIndex,
+                    uniq, freeVars);
+        } else {
+            throw new OtpErlangDecodeException(
+                    "Wrong tag encountered, expected fun, got " + tag);
+        }
     }
 
     public OtpErlangExternalFun read_external_fun()
-	    throws OtpErlangDecodeException {
-	final int tag = read1skip_version();
-	if (tag != OtpExternal.externalFunTag) {
-	    throw new OtpErlangDecodeException(
-		    "Wrong tag encountered, expected external fun, got " + tag);
-	}
-	final String module = read_atom();
-	final String function = read_atom();
-	final int arity = (int) read_long();
-	return new OtpErlangExternalFun(module, function, arity);
+            throws OtpErlangDecodeException {
+        final int tag = read1skip_version();
+        if (tag != OtpExternal.externalFunTag) {
+            throw new OtpErlangDecodeException(
+                    "Wrong tag encountered, expected external fun, got " + tag);
+        }
+        final String module = read_atom();
+        final String function = read_atom();
+        final int arity = (int) read_long();
+        return new OtpErlangExternalFun(module, function, arity);
     }
 
     /**
      * Read a string from the stream.
-     * 
+     *
      * @return the value of the string.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream is not a string.
      */
     public String read_string() throws OtpErlangDecodeException {
-	int tag;
-	int len;
-	byte[] strbuf;
-	int[] intbuf;
-	tag = read1skip_version();
-	switch (tag) {
-	case OtpExternal.stringTag:
-	    len = read2BE();
-	    strbuf = new byte[len];
-	    this.readN(strbuf);
-	    return OtpErlangString.newString(strbuf);
-	case OtpExternal.nilTag:
-	    return "";
-	case OtpExternal.listTag: // List when unicode +
-	    len = read4BE();
-	    intbuf = new int[len];
-	    for (int i = 0; i < len; i++) {
-		intbuf[i] = read_int();
-		if (! OtpErlangString.isValidCodePoint(intbuf[i])) {
-		    throw new OtpErlangDecodeException
-			("Invalid CodePoint: " + intbuf[i]);
-		}
-	    }
-	    read_nil();
-	    return new String(intbuf, 0, intbuf.length);
-	default:
-	    throw new OtpErlangDecodeException(
-		    "Wrong tag encountered, expected " + OtpExternal.stringTag
-			    + " or " + OtpExternal.listTag + ", got " + tag);
-	}
+        int tag;
+        int len;
+        byte[] strbuf;
+        int[] intbuf;
+        tag = read1skip_version();
+        switch (tag) {
+        case OtpExternal.stringTag:
+            len = read2BE();
+            strbuf = new byte[len];
+            this.readN(strbuf);
+            return OtpErlangString.newString(strbuf);
+        case OtpExternal.nilTag:
+            return "";
+        case OtpExternal.listTag: // List when unicode +
+            len = read4BE();
+            intbuf = new int[len];
+            for (int i = 0; i < len; i++) {
+                intbuf[i] = read_int();
+                if (!OtpErlangString.isValidCodePoint(intbuf[i])) {
+                    throw new OtpErlangDecodeException("Invalid CodePoint: "
+                            + intbuf[i]);
+                }
+            }
+            read_nil();
+            return new String(intbuf, 0, intbuf.length);
+        default:
+            throw new OtpErlangDecodeException(
+                    "Wrong tag encountered, expected " + OtpExternal.stringTag
+                            + " or " + OtpExternal.listTag + ", got " + tag);
+        }
     }
 
     /**
      * Read a compressed term from the stream
-     * 
+     *
      * @return the resulting uncompressed term.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the next term in the stream is not a compressed term.
      */
     public OtpErlangObject read_compressed() throws OtpErlangDecodeException {
-	final int tag = read1skip_version();
-
-	if (tag != OtpExternal.compressedTag) {
-	    throw new OtpErlangDecodeException(
-		    "Wrong tag encountered, expected "
-			    + OtpExternal.compressedTag + ", got " + tag);
-	}
-
-	final int size = read4BE();
-	final byte[] abuf = new byte[size];
-	final java.util.zip.InflaterInputStream is = 
-	    new java.util.zip.InflaterInputStream(this, new java.util.zip.Inflater(), size);
-	int curPos = 0;
-	try {
-	    int curRead;
-	    while(curPos < size && (curRead = is.read(abuf, curPos, size - curPos)) != -1) {
-		curPos += curRead;
-	    }
-	    if (curPos != size) {
-		throw new OtpErlangDecodeException("Decompression gave "
-			+ curPos + " bytes, not " + size);
-	    }
-	} catch (final IOException e) {
-	    throw new OtpErlangDecodeException("Cannot read from input stream");
-	}
-
-    @SuppressWarnings("resource")
-	final OtpInputStream ois = new OtpInputStream(abuf, flags);
-	return ois.read_any();
+        final int tag = read1skip_version();
+
+        if (tag != OtpExternal.compressedTag) {
+            throw new OtpErlangDecodeException(
+                    "Wrong tag encountered, expected "
+                            + OtpExternal.compressedTag + ", got " + tag);
+        }
+
+        final int size = read4BE();
+        final byte[] abuf = new byte[size];
+        final java.util.zip.InflaterInputStream is = new java.util.zip.InflaterInputStream(
+                this, new java.util.zip.Inflater(), size);
+        int curPos = 0;
+        try {
+            int curRead;
+            while (curPos < size
+                    && (curRead = is.read(abuf, curPos, size - curPos)) != -1) {
+                curPos += curRead;
+            }
+            if (curPos != size) {
+                throw new OtpErlangDecodeException("Decompression gave "
+                        + curPos + " bytes, not " + size);
+            }
+        } catch (final IOException e) {
+            throw new OtpErlangDecodeException("Cannot read from input stream");
+        }
+
+        @SuppressWarnings("resource")
+        final OtpInputStream ois = new OtpInputStream(abuf, flags);
+        return ois.read_any();
     }
 
     /**
      * Read an arbitrary Erlang term from the stream.
-     * 
+     *
      * @return the Erlang term.
-     * 
+     *
      * @exception OtpErlangDecodeException
      *                if the stream does not contain a known Erlang type at the
      *                next position.
      */
     public OtpErlangObject read_any() throws OtpErlangDecodeException {
-	// calls one of the above functions, depending on o
-	final int tag = peek1skip_version();
+        // calls one of the above functions, depending on o
+        final int tag = peek1skip_version();
 
-	switch (tag) {
-	case OtpExternal.smallIntTag:
-	case OtpExternal.intTag:
-	case OtpExternal.smallBigTag:
-	case OtpExternal.largeBigTag:
-	    return new OtpErlangLong(this);
+        switch (tag) {
+        case OtpExternal.smallIntTag:
+        case OtpExternal.intTag:
+        case OtpExternal.smallBigTag:
+        case OtpExternal.largeBigTag:
+            return new OtpErlangLong(this);
 
-	case OtpExternal.atomTag:
-	case OtpExternal.smallAtomUtf8Tag:
-	case OtpExternal.atomUtf8Tag:
-	    return new OtpErlangAtom(this);
+        case OtpExternal.atomTag:
+        case OtpExternal.smallAtomUtf8Tag:
+        case OtpExternal.atomUtf8Tag:
+            return new OtpErlangAtom(this);
 
-	case OtpExternal.floatTag:
-	case OtpExternal.newFloatTag:
-	    return new OtpErlangDouble(this);
+        case OtpExternal.floatTag:
+        case OtpExternal.newFloatTag:
+            return new OtpErlangDouble(this);
 
-	case OtpExternal.refTag:
-	case OtpExternal.newRefTag:
-	    return new OtpErlangRef(this);
+        case OtpExternal.refTag:
+        case OtpExternal.newRefTag:
+            return new OtpErlangRef(this);
 
         case OtpExternal.mapTag:
             return new OtpErlangMap(this);
 
-	case OtpExternal.portTag:
-	    return new OtpErlangPort(this);
+        case OtpExternal.portTag:
+            return new OtpErlangPort(this);
 
-	case OtpExternal.pidTag:
-	    return new OtpErlangPid(this);
+        case OtpExternal.pidTag:
+            return new OtpErlangPid(this);
 
-	case OtpExternal.stringTag:
-	    return new OtpErlangString(this);
+        case OtpExternal.stringTag:
+            return new OtpErlangString(this);
 
-	case OtpExternal.listTag:
-	case OtpExternal.nilTag:
-	    if ((flags & DECODE_INT_LISTS_AS_STRINGS) != 0) {
-		final int savePos = getPos();
-		try {
-		    return new OtpErlangString(this);
-		} catch (final OtpErlangDecodeException e) {
-		}
-		setPos(savePos);
-	    }
-	    return new OtpErlangList(this);
+        case OtpExternal.listTag:
+        case OtpExternal.nilTag:
+            if ((flags & DECODE_INT_LISTS_AS_STRINGS) != 0) {
+                final int savePos = getPos();
+                try {
+                    return new OtpErlangString(this);
+                } catch (final OtpErlangDecodeException e) {
+                }
+                setPos(savePos);
+            }
+            return new OtpErlangList(this);
 
-	case OtpExternal.smallTupleTag:
-	case OtpExternal.largeTupleTag:
-	    return new OtpErlangTuple(this);
+        case OtpExternal.smallTupleTag:
+        case OtpExternal.largeTupleTag:
+            return new OtpErlangTuple(this);
 
-	case OtpExternal.binTag:
-	    return new OtpErlangBinary(this);
+        case OtpExternal.binTag:
+            return new OtpErlangBinary(this);
 
-	case OtpExternal.bitBinTag:
-	    return new OtpErlangBitstr(this);
+        case OtpExternal.bitBinTag:
+            return new OtpErlangBitstr(this);
 
-	case OtpExternal.compressedTag:
-	    return read_compressed();
+        case OtpExternal.compressedTag:
+            return read_compressed();
 
-	case OtpExternal.newFunTag:
-	case OtpExternal.funTag:
-	    return new OtpErlangFun(this);
+        case OtpExternal.newFunTag:
+        case OtpExternal.funTag:
+            return new OtpErlangFun(this);
 
-	default:
-	    throw new OtpErlangDecodeException("Uknown data type: " + tag);
-	}
+        default:
+            throw new OtpErlangDecodeException("Uknown data type: " + tag);
+        }
     }
 
     public int read_map_head() throws OtpErlangDecodeException {
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpLocalNode.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpLocalNode.java
index fbd0eb4073..dd1d299297 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpLocalNode.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpLocalNode.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -29,89 +29,103 @@ public class OtpLocalNode extends AbstractNode {
     private int refId[];
 
     protected int port;
-    protected java.net.Socket epmd;
-
-    protected OtpLocalNode() {
-	super();
-	init();
-    }
+    protected OtpTransport epmd;
 
     /**
      * Create a node with the given name and the default cookie.
      */
     protected OtpLocalNode(final String node) {
-	super(node);
-	init();
+        super(node);
+        init();
+    }
+
+    /**
+     * Create a node with the given name, transport factory and the default
+     * cookie.
+     */
+    protected OtpLocalNode(final String node,
+            final OtpTransportFactory transportFactory) {
+        super(node, transportFactory);
+        init();
     }
 
     /**
      * Create a node with the given name and cookie.
      */
     protected OtpLocalNode(final String node, final String cookie) {
-	super(node, cookie);
-	init();
+        super(node, cookie);
+        init();
+    }
+
+    /**
+     * Create a node with the given name, cookie and transport factory.
+     */
+    protected OtpLocalNode(final String node, final String cookie,
+            final OtpTransportFactory transportFactory) {
+        super(node, cookie, transportFactory);
+        init();
     }
 
     private void init() {
-	serial = 0;
-	pidCount = 1;
-	portCount = 1;
-	refId = new int[3];
-	refId[0] = 1;
-	refId[1] = 0;
-	refId[2] = 0;
+        serial = 0;
+        pidCount = 1;
+        portCount = 1;
+        refId = new int[3];
+        refId[0] = 1;
+        refId[1] = 0;
+        refId[2] = 0;
     }
 
     /**
      * Get the port number used by this node.
-     * 
+     *
      * @return the port number this server node is accepting connections on.
      */
     public int port() {
-	return port;
+        return port;
     }
 
     /**
      * Set the Epmd socket after publishing this nodes listen port to Epmd.
-     * 
+     *
      * @param s
-     *                The socket connecting this node to Epmd.
+     *            The socket connecting this node to Epmd.
      */
-    protected void setEpmd(final java.net.Socket s) {
-	epmd = s;
+    protected void setEpmd(final OtpTransport s) {
+        epmd = s;
     }
 
     /**
      * Get the Epmd socket.
-     * 
+     *
      * @return The socket connecting this node to Epmd.
      */
-    protected java.net.Socket getEpmd() {
-	return epmd;
+    protected OtpTransport getEpmd() {
+        return epmd;
     }
 
     /**
      * Create an Erlang {@link OtpErlangPid pid}. Erlang pids are based upon
      * some node specific information; this method creates a pid using the
      * information in this node. Each call to this method produces a unique pid.
-     * 
+     *
      * @return an Erlang pid.
      */
     public synchronized OtpErlangPid createPid() {
-	final OtpErlangPid p = new OtpErlangPid(node, pidCount, serial,
-		creation);
+        final OtpErlangPid p = new OtpErlangPid(node, pidCount, serial,
+                creation);
 
-	pidCount++;
-	if (pidCount > 0x7fff) {
-	    pidCount = 0;
+        pidCount++;
+        if (pidCount > 0x7fff) {
+            pidCount = 0;
 
-	    serial++;
-	    if (serial > 0x1fff) { /* 13 bits */
-		serial = 0;
-	    }
-	}
+            serial++;
+            if (serial > 0x1fff) { /* 13 bits */
+                serial = 0;
+            }
+        }
 
-	return p;
+        return p;
     }
 
     /**
@@ -120,18 +134,18 @@ public class OtpLocalNode extends AbstractNode {
      * information in this node. Each call to this method produces a unique
      * port. It may not be meaningful to create a port in a non-Erlang
      * environment, but this method is provided for completeness.
-     * 
+     *
      * @return an Erlang port.
      */
     public synchronized OtpErlangPort createPort() {
-	final OtpErlangPort p = new OtpErlangPort(node, portCount, creation);
+        final OtpErlangPort p = new OtpErlangPort(node, portCount, creation);
 
-	portCount++;
-	if (portCount > 0xfffffff) { /* 28 bits */
-	    portCount = 0;
-	}
+        portCount++;
+        if (portCount > 0xfffffff) { /* 28 bits */
+            portCount = 0;
+        }
 
-	return p;
+        return p;
     }
 
     /**
@@ -139,23 +153,23 @@ public class OtpLocalNode extends AbstractNode {
      * based upon some node specific information; this method creates a
      * reference using the information in this node. Each call to this method
      * produces a unique reference.
-     * 
+     *
      * @return an Erlang reference.
      */
     public synchronized OtpErlangRef createRef() {
-	final OtpErlangRef r = new OtpErlangRef(node, refId, creation);
+        final OtpErlangRef r = new OtpErlangRef(node, refId, creation);
 
-	// increment ref ids (3 ints: 18 + 32 + 32 bits)
-	refId[0]++;
-	if (refId[0] > 0x3ffff) {
-	    refId[0] = 0;
+        // increment ref ids (3 ints: 18 + 32 + 32 bits)
+        refId[0]++;
+        if (refId[0] > 0x3ffff) {
+            refId[0] = 0;
 
-	    refId[1]++;
-	    if (refId[1] == 0) {
-		refId[2]++;
-	    }
-	}
+            refId[1]++;
+            if (refId[1] == 0) {
+                refId[2]++;
+            }
+        }
 
-	return r;
+        return r;
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpMD5.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpMD5.java
index a5a4d86602..41be523eb2 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpMD5.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpMD5.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -46,37 +46,37 @@ class OtpMD5 {
      */
 
     private final long state[] = { 0x67452301L, 0xefcdab89L, 0x98badcfeL,
-	    0x10325476L };
+            0x10325476L };
     private final long count[] = { 0L, 0L };
     private final int buffer[];
 
     public OtpMD5() {
-	buffer = new int[64];
-	int i;
-	for (i = 0; i < 64; ++i) {
-	    buffer[i] = 0;
-	}
+        buffer = new int[64];
+        int i;
+        for (i = 0; i < 64; ++i) {
+            buffer[i] = 0;
+        }
     }
 
     private int[] to_bytes(final String s) {
-	final char tmp[] = s.toCharArray();
-	final int ret[] = new int[tmp.length];
-	int i;
-
-	for (i = 0; i < tmp.length; ++i) {
-	    ret[i] = tmp[i] & 0xFF;
-	}
-	return ret;
+        final char tmp[] = s.toCharArray();
+        final int ret[] = new int[tmp.length];
+        int i;
+
+        for (i = 0; i < tmp.length; ++i) {
+            ret[i] = tmp[i] & 0xFF;
+        }
+        return ret;
     }
 
     private int[] clean_bytes(final int bytes[]) {
-	final int ret[] = new int[bytes.length];
-	int i;
+        final int ret[] = new int[bytes.length];
+        int i;
 
-	for (i = 0; i < bytes.length; ++i) {
-	    ret[i] = bytes[i] & 0xFF;
-	}
-	return ret;
+        for (i = 0; i < bytes.length; ++i) {
+            ret[i] = bytes[i] & 0xFF;
+        }
+        return ret;
     }
 
     /*
@@ -84,83 +84,83 @@ class OtpMD5 {
      */
 
     private long shl(final long what, final int steps) {
-	return what << steps & 0xFFFFFFFFL;
+        return what << steps & 0xFFFFFFFFL;
     }
 
     private long shr(final long what, final int steps) {
-	return what >>> steps;
+        return what >>> steps;
     }
 
     private long plus(final long a, final long b) {
-	return a + b & 0xFFFFFFFFL;
+        return a + b & 0xFFFFFFFFL;
     }
 
-    private long not(long x) {
-	return ~x & 0xFFFFFFFFL;
+    private long not(final long x) {
+        return ~x & 0xFFFFFFFFL;
     }
 
-    private void to_buffer(int to_start, final int[] from, int from_start,
-	    int num) {
-    int ix = num;
-    int to_ix = to_start;
-    int from_ix = from_start;
-    while (ix-- > 0) {
-        buffer[to_ix++] = from[from_ix++];
-	}
+    private void to_buffer(final int to_start, final int[] from,
+            final int from_start, final int num) {
+        int ix = num;
+        int to_ix = to_start;
+        int from_ix = from_start;
+        while (ix-- > 0) {
+            buffer[to_ix++] = from[from_ix++];
+        }
     }
 
     private void do_update(final int bytes[]) {
-	int index = (int) (count[0] >>> 3 & 0x3F);
-	final long inlen = bytes.length;
-	final long addcount = shl(inlen, 3);
-	final long partlen = 64 - index;
-	int i;
+        int index = (int) (count[0] >>> 3 & 0x3F);
+        final long inlen = bytes.length;
+        final long addcount = shl(inlen, 3);
+        final long partlen = 64 - index;
+        int i;
 
-	count[0] = plus(count[0], addcount);
+        count[0] = plus(count[0], addcount);
 
-	if (count[0] < addcount) {
-	    ++count[1];
-	}
+        if (count[0] < addcount) {
+            ++count[1];
+        }
 
-	count[1] = plus(count[1], shr(inlen, 29));
+        count[1] = plus(count[1], shr(inlen, 29));
 
-    // dumpstate();
+        // dumpstate();
 
-	if (inlen >= partlen) {
-	    to_buffer(index, bytes, 0, (int) partlen);
-	    transform(buffer, 0);
+        if (inlen >= partlen) {
+            to_buffer(index, bytes, 0, (int) partlen);
+            transform(buffer, 0);
 
-	    for (i = (int) partlen; i + 63 < inlen; i += 64) {
-		transform(bytes, i);
-	    }
+            for (i = (int) partlen; i + 63 < inlen; i += 64) {
+                transform(bytes, i);
+            }
 
-	    index = 0;
-	} else {
-	    i = 0;
-	}
+            index = 0;
+        } else {
+            i = 0;
+        }
 
-	/* dumpstate(); */
+        /* dumpstate(); */
 
-	to_buffer(index, bytes, i, (int) inlen - i);
+        to_buffer(index, bytes, i, (int) inlen - i);
 
-	/* dumpstate(); */
+        /* dumpstate(); */
 
     }
 
     @SuppressWarnings("unused")
     private void dumpstate() {
-	System.out.println("state = {" + state[0] + ", " + state[1] + ", "
-		+ state[2] + ", " + state[3] + "}");
-	System.out.println("count = {" + count[0] + ", " + count[1] + "}");
-	System.out.print("buffer = {");
-	int i;
-	for (i = 0; i < 64; ++i) {
-	    if (i > 0) {
-		System.out.print(", ");
-	    }
-	    System.out.print(buffer[i]);
-	}
-	System.out.println("}");
+        System.out.println("state = {" + state[0] + ", " + state[1] + ", "
+                + state[2] + ", " + state[3] + "}");
+        System.out.println("count = {" + count[0] + ", " + count[1] + "}");
+        System.out.print("buffer = {");
+        int i;
+        for (i = 0; i < 64; ++i) {
+            if (i > 0) {
+                System.out.print(", ");
+            }
+            System.out.print(buffer[i]);
+        }
+        System.out.println("}");
     }
 
     /*
@@ -168,191 +168,191 @@ class OtpMD5 {
      */
 
     private long F(final long x, final long y, final long z) {
-	return x & y | not(x) & z;
+        return x & y | not(x) & z;
     }
 
     private long G(final long x, final long y, final long z) {
-	return x & z | y & not(z);
+        return x & z | y & not(z);
     }
 
     private long H(final long x, final long y, final long z) {
-	return x ^ y ^ z;
+        return x ^ y ^ z;
     }
 
     private long I(final long x, final long y, final long z) {
-	return y ^ (x | not(z));
+        return y ^ (x | not(z));
     }
 
     private long ROTATE_LEFT(final long x, final long n) {
-	return shl(x, (int) n) | shr(x, (int) (32 - n));
+        return shl(x, (int) n) | shr(x, (int) (32 - n));
     }
 
-    private long FF(long a, final long b, final long c, final long d,
-	    final long x, final long s, final long ac) {
-    long tmp = plus(a, plus(plus(F(b, c, d), x), ac));
-    tmp = ROTATE_LEFT(tmp, s);
-    return plus(tmp, b);
+    private long FF(final long a, final long b, final long c, final long d,
+            final long x, final long s, final long ac) {
+        long tmp = plus(a, plus(plus(F(b, c, d), x), ac));
+        tmp = ROTATE_LEFT(tmp, s);
+        return plus(tmp, b);
     }
 
-    private long GG(long a, final long b, final long c, final long d,
-	    final long x, final long s, final long ac) {
-    long tmp = plus(a, plus(plus(G(b, c, d), x), ac));
-    tmp = ROTATE_LEFT(tmp, s);
-    return plus(tmp, b);
+    private long GG(final long a, final long b, final long c, final long d,
+            final long x, final long s, final long ac) {
+        long tmp = plus(a, plus(plus(G(b, c, d), x), ac));
+        tmp = ROTATE_LEFT(tmp, s);
+        return plus(tmp, b);
     }
 
-    private long HH(long a, final long b, final long c, final long d,
-	    final long x, final long s, final long ac) {
-    long tmp = plus(a, plus(plus(H(b, c, d), x), ac));
-    tmp = ROTATE_LEFT(tmp, s);
-    return plus(tmp, b);
+    private long HH(final long a, final long b, final long c, final long d,
+            final long x, final long s, final long ac) {
+        long tmp = plus(a, plus(plus(H(b, c, d), x), ac));
+        tmp = ROTATE_LEFT(tmp, s);
+        return plus(tmp, b);
     }
 
-    private long II(long a, final long b, final long c, final long d,
-	    final long x, final long s, final long ac) {
-    long tmp = plus(a, plus(plus(I(b, c, d), x), ac));
-    tmp = ROTATE_LEFT(tmp, s);
-    return plus(tmp, b);
+    private long II(final long a, final long b, final long c, final long d,
+            final long x, final long s, final long ac) {
+        long tmp = plus(a, plus(plus(I(b, c, d), x), ac));
+        tmp = ROTATE_LEFT(tmp, s);
+        return plus(tmp, b);
     }
 
     private void decode(final long output[], final int input[],
-	    final int in_from, final int len) {
-	int i, j;
-
-	for (i = 0, j = 0; j < len; i++, j += 4) {
-	    output[i] = input[j + in_from] | shl(input[j + in_from + 1], 8)
-		    | shl(input[j + in_from + 2], 16)
-		    | shl(input[j + in_from + 3], 24);
-	}
+            final int in_from, final int len) {
+        int i, j;
+
+        for (i = 0, j = 0; j < len; i++, j += 4) {
+            output[i] = input[j + in_from] | shl(input[j + in_from + 1], 8)
+                    | shl(input[j + in_from + 2], 16)
+                    | shl(input[j + in_from + 3], 24);
+        }
     }
 
     private void transform(final int block[], final int from) {
-	long a = state[0];
-	long b = state[1];
-	long c = state[2];
-	long d = state[3];
-	final long x[] = new long[16];
-
-	decode(x, block, from, 64);
-
-	a = FF(a, b, c, d, x[0], S11, 0xd76aa478L); /* 1 */
-	d = FF(d, a, b, c, x[1], S12, 0xe8c7b756L); /* 2 */
-	c = FF(c, d, a, b, x[2], S13, 0x242070dbL); /* 3 */
-	b = FF(b, c, d, a, x[3], S14, 0xc1bdceeeL); /* 4 */
-	a = FF(a, b, c, d, x[4], S11, 0xf57c0fafL); /* 5 */
-	d = FF(d, a, b, c, x[5], S12, 0x4787c62aL); /* 6 */
-	c = FF(c, d, a, b, x[6], S13, 0xa8304613L); /* 7 */
-	b = FF(b, c, d, a, x[7], S14, 0xfd469501L); /* 8 */
-	a = FF(a, b, c, d, x[8], S11, 0x698098d8L); /* 9 */
-	d = FF(d, a, b, c, x[9], S12, 0x8b44f7afL); /* 10 */
-	c = FF(c, d, a, b, x[10], S13, 0xffff5bb1L); /* 11 */
-	b = FF(b, c, d, a, x[11], S14, 0x895cd7beL); /* 12 */
-	a = FF(a, b, c, d, x[12], S11, 0x6b901122L); /* 13 */
-	d = FF(d, a, b, c, x[13], S12, 0xfd987193L); /* 14 */
-	c = FF(c, d, a, b, x[14], S13, 0xa679438eL); /* 15 */
-	b = FF(b, c, d, a, x[15], S14, 0x49b40821L); /* 16 */
-
-	/* Round 2 */
-	a = GG(a, b, c, d, x[1], S21, 0xf61e2562L); /* 17 */
-	d = GG(d, a, b, c, x[6], S22, 0xc040b340L); /* 18 */
-	c = GG(c, d, a, b, x[11], S23, 0x265e5a51L); /* 19 */
-	b = GG(b, c, d, a, x[0], S24, 0xe9b6c7aaL); /* 20 */
-	a = GG(a, b, c, d, x[5], S21, 0xd62f105dL); /* 21 */
-	d = GG(d, a, b, c, x[10], S22, 0x2441453L); /* 22 */
-	c = GG(c, d, a, b, x[15], S23, 0xd8a1e681L); /* 23 */
-	b = GG(b, c, d, a, x[4], S24, 0xe7d3fbc8L); /* 24 */
-	a = GG(a, b, c, d, x[9], S21, 0x21e1cde6L); /* 25 */
-	d = GG(d, a, b, c, x[14], S22, 0xc33707d6L); /* 26 */
-	c = GG(c, d, a, b, x[3], S23, 0xf4d50d87L); /* 27 */
-	b = GG(b, c, d, a, x[8], S24, 0x455a14edL); /* 28 */
-	a = GG(a, b, c, d, x[13], S21, 0xa9e3e905L); /* 29 */
-	d = GG(d, a, b, c, x[2], S22, 0xfcefa3f8L); /* 30 */
-	c = GG(c, d, a, b, x[7], S23, 0x676f02d9L); /* 31 */
-	b = GG(b, c, d, a, x[12], S24, 0x8d2a4c8aL); /* 32 */
-
-	/* Round 3 */
-	a = HH(a, b, c, d, x[5], S31, 0xfffa3942L); /* 33 */
-	d = HH(d, a, b, c, x[8], S32, 0x8771f681L); /* 34 */
-	c = HH(c, d, a, b, x[11], S33, 0x6d9d6122L); /* 35 */
-	b = HH(b, c, d, a, x[14], S34, 0xfde5380cL); /* 36 */
-	a = HH(a, b, c, d, x[1], S31, 0xa4beea44L); /* 37 */
-	d = HH(d, a, b, c, x[4], S32, 0x4bdecfa9L); /* 38 */
-	c = HH(c, d, a, b, x[7], S33, 0xf6bb4b60L); /* 39 */
-	b = HH(b, c, d, a, x[10], S34, 0xbebfbc70L); /* 40 */
-	a = HH(a, b, c, d, x[13], S31, 0x289b7ec6L); /* 41 */
-	d = HH(d, a, b, c, x[0], S32, 0xeaa127faL); /* 42 */
-	c = HH(c, d, a, b, x[3], S33, 0xd4ef3085L); /* 43 */
-	b = HH(b, c, d, a, x[6], S34, 0x4881d05L); /* 44 */
-	a = HH(a, b, c, d, x[9], S31, 0xd9d4d039L); /* 45 */
-	d = HH(d, a, b, c, x[12], S32, 0xe6db99e5L); /* 46 */
-	c = HH(c, d, a, b, x[15], S33, 0x1fa27cf8L); /* 47 */
-	b = HH(b, c, d, a, x[2], S34, 0xc4ac5665L); /* 48 */
-
-	/* Round 4 */
-	a = II(a, b, c, d, x[0], S41, 0xf4292244L); /* 49 */
-	d = II(d, a, b, c, x[7], S42, 0x432aff97L); /* 50 */
-	c = II(c, d, a, b, x[14], S43, 0xab9423a7L); /* 51 */
-	b = II(b, c, d, a, x[5], S44, 0xfc93a039L); /* 52 */
-	a = II(a, b, c, d, x[12], S41, 0x655b59c3L); /* 53 */
-	d = II(d, a, b, c, x[3], S42, 0x8f0ccc92L); /* 54 */
-	c = II(c, d, a, b, x[10], S43, 0xffeff47dL); /* 55 */
-	b = II(b, c, d, a, x[1], S44, 0x85845dd1L); /* 56 */
-	a = II(a, b, c, d, x[8], S41, 0x6fa87e4fL); /* 57 */
-	d = II(d, a, b, c, x[15], S42, 0xfe2ce6e0L); /* 58 */
-	c = II(c, d, a, b, x[6], S43, 0xa3014314L); /* 59 */
-	b = II(b, c, d, a, x[13], S44, 0x4e0811a1L); /* 60 */
-	a = II(a, b, c, d, x[4], S41, 0xf7537e82L); /* 61 */
-	d = II(d, a, b, c, x[11], S42, 0xbd3af235L); /* 62 */
-	c = II(c, d, a, b, x[2], S43, 0x2ad7d2bbL); /* 63 */
-	b = II(b, c, d, a, x[9], S44, 0xeb86d391L); /* 64 */
-
-	state[0] = plus(state[0], a);
-	state[1] = plus(state[1], b);
-	state[2] = plus(state[2], c);
-	state[3] = plus(state[3], d);
+        long a = state[0];
+        long b = state[1];
+        long c = state[2];
+        long d = state[3];
+        final long x[] = new long[16];
+
+        decode(x, block, from, 64);
+
+        a = FF(a, b, c, d, x[0], S11, 0xd76aa478L); /* 1 */
+        d = FF(d, a, b, c, x[1], S12, 0xe8c7b756L); /* 2 */
+        c = FF(c, d, a, b, x[2], S13, 0x242070dbL); /* 3 */
+        b = FF(b, c, d, a, x[3], S14, 0xc1bdceeeL); /* 4 */
+        a = FF(a, b, c, d, x[4], S11, 0xf57c0fafL); /* 5 */
+        d = FF(d, a, b, c, x[5], S12, 0x4787c62aL); /* 6 */
+        c = FF(c, d, a, b, x[6], S13, 0xa8304613L); /* 7 */
+        b = FF(b, c, d, a, x[7], S14, 0xfd469501L); /* 8 */
+        a = FF(a, b, c, d, x[8], S11, 0x698098d8L); /* 9 */
+        d = FF(d, a, b, c, x[9], S12, 0x8b44f7afL); /* 10 */
+        c = FF(c, d, a, b, x[10], S13, 0xffff5bb1L); /* 11 */
+        b = FF(b, c, d, a, x[11], S14, 0x895cd7beL); /* 12 */
+        a = FF(a, b, c, d, x[12], S11, 0x6b901122L); /* 13 */
+        d = FF(d, a, b, c, x[13], S12, 0xfd987193L); /* 14 */
+        c = FF(c, d, a, b, x[14], S13, 0xa679438eL); /* 15 */
+        b = FF(b, c, d, a, x[15], S14, 0x49b40821L); /* 16 */
+
+        /* Round 2 */
+        a = GG(a, b, c, d, x[1], S21, 0xf61e2562L); /* 17 */
+        d = GG(d, a, b, c, x[6], S22, 0xc040b340L); /* 18 */
+        c = GG(c, d, a, b, x[11], S23, 0x265e5a51L); /* 19 */
+        b = GG(b, c, d, a, x[0], S24, 0xe9b6c7aaL); /* 20 */
+        a = GG(a, b, c, d, x[5], S21, 0xd62f105dL); /* 21 */
+        d = GG(d, a, b, c, x[10], S22, 0x2441453L); /* 22 */
+        c = GG(c, d, a, b, x[15], S23, 0xd8a1e681L); /* 23 */
+        b = GG(b, c, d, a, x[4], S24, 0xe7d3fbc8L); /* 24 */
+        a = GG(a, b, c, d, x[9], S21, 0x21e1cde6L); /* 25 */
+        d = GG(d, a, b, c, x[14], S22, 0xc33707d6L); /* 26 */
+        c = GG(c, d, a, b, x[3], S23, 0xf4d50d87L); /* 27 */
+        b = GG(b, c, d, a, x[8], S24, 0x455a14edL); /* 28 */
+        a = GG(a, b, c, d, x[13], S21, 0xa9e3e905L); /* 29 */
+        d = GG(d, a, b, c, x[2], S22, 0xfcefa3f8L); /* 30 */
+        c = GG(c, d, a, b, x[7], S23, 0x676f02d9L); /* 31 */
+        b = GG(b, c, d, a, x[12], S24, 0x8d2a4c8aL); /* 32 */
+
+        /* Round 3 */
+        a = HH(a, b, c, d, x[5], S31, 0xfffa3942L); /* 33 */
+        d = HH(d, a, b, c, x[8], S32, 0x8771f681L); /* 34 */
+        c = HH(c, d, a, b, x[11], S33, 0x6d9d6122L); /* 35 */
+        b = HH(b, c, d, a, x[14], S34, 0xfde5380cL); /* 36 */
+        a = HH(a, b, c, d, x[1], S31, 0xa4beea44L); /* 37 */
+        d = HH(d, a, b, c, x[4], S32, 0x4bdecfa9L); /* 38 */
+        c = HH(c, d, a, b, x[7], S33, 0xf6bb4b60L); /* 39 */
+        b = HH(b, c, d, a, x[10], S34, 0xbebfbc70L); /* 40 */
+        a = HH(a, b, c, d, x[13], S31, 0x289b7ec6L); /* 41 */
+        d = HH(d, a, b, c, x[0], S32, 0xeaa127faL); /* 42 */
+        c = HH(c, d, a, b, x[3], S33, 0xd4ef3085L); /* 43 */
+        b = HH(b, c, d, a, x[6], S34, 0x4881d05L); /* 44 */
+        a = HH(a, b, c, d, x[9], S31, 0xd9d4d039L); /* 45 */
+        d = HH(d, a, b, c, x[12], S32, 0xe6db99e5L); /* 46 */
+        c = HH(c, d, a, b, x[15], S33, 0x1fa27cf8L); /* 47 */
+        b = HH(b, c, d, a, x[2], S34, 0xc4ac5665L); /* 48 */
+
+        /* Round 4 */
+        a = II(a, b, c, d, x[0], S41, 0xf4292244L); /* 49 */
+        d = II(d, a, b, c, x[7], S42, 0x432aff97L); /* 50 */
+        c = II(c, d, a, b, x[14], S43, 0xab9423a7L); /* 51 */
+        b = II(b, c, d, a, x[5], S44, 0xfc93a039L); /* 52 */
+        a = II(a, b, c, d, x[12], S41, 0x655b59c3L); /* 53 */
+        d = II(d, a, b, c, x[3], S42, 0x8f0ccc92L); /* 54 */
+        c = II(c, d, a, b, x[10], S43, 0xffeff47dL); /* 55 */
+        b = II(b, c, d, a, x[1], S44, 0x85845dd1L); /* 56 */
+        a = II(a, b, c, d, x[8], S41, 0x6fa87e4fL); /* 57 */
+        d = II(d, a, b, c, x[15], S42, 0xfe2ce6e0L); /* 58 */
+        c = II(c, d, a, b, x[6], S43, 0xa3014314L); /* 59 */
+        b = II(b, c, d, a, x[13], S44, 0x4e0811a1L); /* 60 */
+        a = II(a, b, c, d, x[4], S41, 0xf7537e82L); /* 61 */
+        d = II(d, a, b, c, x[11], S42, 0xbd3af235L); /* 62 */
+        c = II(c, d, a, b, x[2], S43, 0x2ad7d2bbL); /* 63 */
+        b = II(b, c, d, a, x[9], S44, 0xeb86d391L); /* 64 */
+
+        state[0] = plus(state[0], a);
+        state[1] = plus(state[1], b);
+        state[2] = plus(state[2], c);
+        state[3] = plus(state[3], d);
     }
 
     public void update(final int bytes[]) {
-	do_update(clean_bytes(bytes));
+        do_update(clean_bytes(bytes));
     }
 
     public void update(final String s) {
-	do_update(to_bytes(s));
+        do_update(to_bytes(s));
     }
 
     private int[] encode(final long[] input, final int len) {
-	final int output[] = new int[len];
-	int i, j;
-	for (i = 0, j = 0; j < len; i++, j += 4) {
-	    output[j] = (int) (input[i] & 0xff);
-	    output[j + 1] = (int) (input[i] >>> 8 & 0xff);
-	    output[j + 2] = (int) (input[i] >>> 16 & 0xff);
-	    output[j + 3] = (int) (input[i] >>> 24 & 0xff);
-	}
-	return output;
+        final int output[] = new int[len];
+        int i, j;
+        for (i = 0, j = 0; j < len; i++, j += 4) {
+            output[j] = (int) (input[i] & 0xff);
+            output[j + 1] = (int) (input[i] >>> 8 & 0xff);
+            output[j + 2] = (int) (input[i] >>> 16 & 0xff);
+            output[j + 3] = (int) (input[i] >>> 24 & 0xff);
+        }
+        return output;
     }
 
     public int[] final_bytes() {
-	final int bits[] = encode(count, 8);
-	int index, padlen;
-	int padding[], i;
-	int[] digest;
+        final int bits[] = encode(count, 8);
+        int index, padlen;
+        int padding[], i;
+        int[] digest;
 
-	index = (int) (count[0] >>> 3 & 0x3f);
-	padlen = index < 56 ? 56 - index : 120 - index;
-	/* padlen > 0 */
-	padding = new int[padlen];
-	padding[0] = 0x80;
-	for (i = 1; i < padlen; ++i) {
-	    padding[i] = 0;
-	}
+        index = (int) (count[0] >>> 3 & 0x3f);
+        padlen = index < 56 ? 56 - index : 120 - index;
+        /* padlen > 0 */
+        padding = new int[padlen];
+        padding[0] = 0x80;
+        for (i = 1; i < padlen; ++i) {
+            padding[i] = 0;
+        }
 
-	do_update(padding);
+        do_update(padding);
 
-	do_update(bits);
+        do_update(bits);
 
-	digest = encode(state, 16);
+        digest = encode(state, 16);
 
-	return digest;
+        return digest;
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpMbox.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpMbox.java
index fc592c222c..872dba6dab 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpMbox.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpMbox.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2012. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -23,7 +23,7 @@ package com.ericsson.otp.erlang;
  * Provides a simple mechanism for exchanging messages with Erlang processes or
  * other instances of this class.
  * </p>
- * 
+ *
  * <p>
  * Each mailbox is associated with a unique {@link OtpErlangPid pid} that
  * contains information necessary for delivery of messages. When sending
@@ -33,7 +33,7 @@ package com.ericsson.otp.erlang;
  * message contents. The sender can determine his own pid by calling
  * {@link #self() self()}.
  * </p>
- * 
+ *
  * <p>
  * Mailboxes can be named, either at creation or later. Messages can be sent to
  * named mailboxes and named Erlang processes without knowing the
@@ -41,7 +41,7 @@ package com.ericsson.otp.erlang;
  * order to set up initial communication between parts of an application. Each
  * mailbox can have at most one name.
  * </p>
- * 
+ *
  * <p>
  * Since this class was intended for communication with Erlang, all of the send
  * methods take {@link OtpErlangObject OtpErlangObject} arguments. However this
@@ -49,14 +49,14 @@ package com.ericsson.otp.erlang;
  * implement one of java.io.Serializable or java.io.Externalizable) by
  * encapsulating the object in a {@link OtpErlangBinary OtpErlangBinary}.
  * </p>
- * 
+ *
  * <p>
  * Messages to remote nodes are externalized for transmission, and as a result
  * the recipient receives a <b>copy</b> of the original Java object. To ensure
  * consistent behaviour when messages are sent between local mailboxes, such
  * messages are cloned before delivery.
  * </p>
- * 
+ *
  * <p>
  * Additionally, mailboxes can be linked in much the same way as Erlang
  * processes. If a link is active when a mailbox is {@link #close closed}, any
@@ -68,14 +68,14 @@ package com.ericsson.otp.erlang;
  * close mailboxes if you are using links instead of relying on finalization to
  * notify other parties in a timely manner.
  * </p>
- * 
+ *
  * <p>
  * When retrieving messages from a mailbox that has received an exit signal, an
  * {@link OtpErlangExit OtpErlangExit} exception will be raised. Note that the
  * exception is queued in the mailbox along with other messages, and will not be
  * raised until it reaches the head of the queue and is about to be retrieved.
  * </p>
- * 
+ *
  */
 public class OtpMbox {
     OtpNode home;
@@ -87,17 +87,17 @@ public class OtpMbox {
     // package constructor: called by OtpNode:createMbox(name)
     // to create a named mbox
     OtpMbox(final OtpNode home, final OtpErlangPid self, final String name) {
-	this.self = self;
-	this.home = home;
-	this.name = name;
-	queue = new GenericQueue();
-	links = new Links(10);
+        this.self = self;
+        this.home = home;
+        this.name = name;
+        queue = new GenericQueue();
+        links = new Links(10);
     }
 
     // package constructor: called by OtpNode:createMbox()
     // to create an anonymous
     OtpMbox(final OtpNode home, final OtpErlangPid self) {
-	this(home, self, null);
+        this(home, self, null);
     }
 
     /**
@@ -105,18 +105,18 @@ public class OtpMbox {
      * Get the identifying {@link OtpErlangPid pid} associated with this
      * mailbox.
      * </p>
-     * 
+     *
      * <p>
      * The {@link OtpErlangPid pid} associated with this mailbox uniquely
      * identifies the mailbox and can be used to address the mailbox. You can
      * send the {@link OtpErlangPid pid} to a remote communicating part so that
      * he can know where to send his response.
      * </p>
-     * 
+     *
      * @return the self pid for this mailbox.
      */
     public OtpErlangPid self() {
-	return self;
+        return self;
     }
 
     /**
@@ -127,305 +127,305 @@ public class OtpMbox {
      * name; if the mailbox already had a name, calling this method will
      * supercede that name.
      * </p>
-     * 
+     *
      * @param aname
-     *                the name to register for the mailbox. Specify null to
-     *                unregister the existing name from this mailbox.
-     * 
+     *            the name to register for the mailbox. Specify null to
+     *            unregister the existing name from this mailbox.
+     *
      * @return true if the name was available, or false otherwise.
      */
     public synchronized boolean registerName(final String aname) {
-	return home.registerName(aname, this);
+        return home.registerName(aname, this);
     }
 
     /**
      * Get the registered name of this mailbox.
-     * 
+     *
      * @return the registered name of this mailbox, or null if the mailbox had
      *         no registered name.
      */
     public String getName() {
-	return name;
+        return name;
     }
 
     /**
      * Block until a message arrives for this mailbox.
-     * 
+     *
      * @return an {@link OtpErlangObject OtpErlangObject} representing the body
      *         of the next message waiting in this mailbox.
-     * 
+     *
      * @exception OtpErlangDecodeException
-     *                    if the message can not be decoded.
-     * 
+     *                if the message can not be decoded.
+     *
      * @exception OtpErlangExit
-     *                    if a linked {@link OtpErlangPid pid} has exited or has
-     *                    sent an exit signal to this mailbox.
+     *                if a linked {@link OtpErlangPid pid} has exited or has
+     *                sent an exit signal to this mailbox.
      */
     public OtpErlangObject receive() throws OtpErlangExit,
-	    OtpErlangDecodeException {
-	try {
-	    return receiveMsg().getMsg();
-	} catch (final OtpErlangExit e) {
-	    throw e;
-	} catch (final OtpErlangDecodeException f) {
-	    throw f;
-	}
+            OtpErlangDecodeException {
+        try {
+            return receiveMsg().getMsg();
+        } catch (final OtpErlangExit e) {
+            throw e;
+        } catch (final OtpErlangDecodeException f) {
+            throw f;
+        }
     }
 
     /**
      * Wait for a message to arrive for this mailbox.
-     * 
+     *
      * @param timeout
-     *                the time, in milliseconds, to wait for a message before
-     *                returning null.
-     * 
+     *            the time, in milliseconds, to wait for a message before
+     *            returning null.
+     *
      * @return an {@link OtpErlangObject OtpErlangObject} representing the body
      *         of the next message waiting in this mailbox.
-     * 
+     *
      * @exception OtpErlangDecodeException
-     *                    if the message can not be decoded.
-     * 
+     *                if the message can not be decoded.
+     *
      * @exception OtpErlangExit
-     *                    if a linked {@link OtpErlangPid pid} has exited or has
-     *                    sent an exit signal to this mailbox.
+     *                if a linked {@link OtpErlangPid pid} has exited or has
+     *                sent an exit signal to this mailbox.
      */
     public OtpErlangObject receive(final long timeout) throws OtpErlangExit,
-	    OtpErlangDecodeException {
-	try {
-	    final OtpMsg m = receiveMsg(timeout);
-	    if (m != null) {
-		return m.getMsg();
-	    }
-	} catch (final OtpErlangExit e) {
-	    throw e;
-	} catch (final OtpErlangDecodeException f) {
-	    throw f;
-	} catch (final InterruptedException g) {
-	}
-	return null;
+            OtpErlangDecodeException {
+        try {
+            final OtpMsg m = receiveMsg(timeout);
+            if (m != null) {
+                return m.getMsg();
+            }
+        } catch (final OtpErlangExit e) {
+            throw e;
+        } catch (final OtpErlangDecodeException f) {
+            throw f;
+        } catch (final InterruptedException g) {
+        }
+        return null;
     }
 
     /**
      * Block until a message arrives for this mailbox.
-     * 
+     *
      * @return a byte array representing the still-encoded body of the next
      *         message waiting in this mailbox.
-     * 
+     *
      * @exception OtpErlangExit
-     *                    if a linked {@link OtpErlangPid pid} has exited or has
-     *                    sent an exit signal to this mailbox.
-     * 
+     *                if a linked {@link OtpErlangPid pid} has exited or has
+     *                sent an exit signal to this mailbox.
+     *
      */
     public OtpInputStream receiveBuf() throws OtpErlangExit {
-	return receiveMsg().getMsgBuf();
+        return receiveMsg().getMsgBuf();
     }
 
     /**
      * Wait for a message to arrive for this mailbox.
-     * 
+     *
      * @param timeout
-     *                the time, in milliseconds, to wait for a message before
-     *                returning null.
-     * 
+     *            the time, in milliseconds, to wait for a message before
+     *            returning null.
+     *
      * @return a byte array representing the still-encoded body of the next
      *         message waiting in this mailbox.
-     * 
+     *
      * @exception OtpErlangExit
-     *                    if a linked {@link OtpErlangPid pid} has exited or has
-     *                    sent an exit signal to this mailbox.
-     * 
+     *                if a linked {@link OtpErlangPid pid} has exited or has
+     *                sent an exit signal to this mailbox.
+     *
      * @exception InterruptedException
-     *                    if no message if the method times out before a message
-     *                    becomes available.
+     *                if no message if the method times out before a message
+     *                becomes available.
      */
     public OtpInputStream receiveBuf(final long timeout)
-	    throws InterruptedException, OtpErlangExit {
-	final OtpMsg m = receiveMsg(timeout);
-	if (m != null) {
-	    return m.getMsgBuf();
-	}
+            throws InterruptedException, OtpErlangExit {
+        final OtpMsg m = receiveMsg(timeout);
+        if (m != null) {
+            return m.getMsgBuf();
+        }
 
-	return null;
+        return null;
     }
 
     /**
      * Block until a message arrives for this mailbox.
-     * 
+     *
      * @return an {@link OtpMsg OtpMsg} containing the header information as
      *         well as the body of the next message waiting in this mailbox.
-     * 
+     *
      * @exception OtpErlangExit
-     *                    if a linked {@link OtpErlangPid pid} has exited or has
-     *                    sent an exit signal to this mailbox.
-     * 
+     *                if a linked {@link OtpErlangPid pid} has exited or has
+     *                sent an exit signal to this mailbox.
+     *
      */
     public OtpMsg receiveMsg() throws OtpErlangExit {
 
-	final OtpMsg m = (OtpMsg) queue.get();
-
-	switch (m.type()) {
-	case OtpMsg.exitTag:
-	case OtpMsg.exit2Tag:
-	    try {
-		final OtpErlangObject o = m.getMsg();
-		throw new OtpErlangExit(o, m.getSenderPid());
-	    } catch (final OtpErlangDecodeException e) {
-		throw new OtpErlangExit("unknown", m.getSenderPid());
-	    }
-
-	default:
-	    return m;
-	}
+        final OtpMsg m = (OtpMsg) queue.get();
+
+        switch (m.type()) {
+        case OtpMsg.exitTag:
+        case OtpMsg.exit2Tag:
+            try {
+                final OtpErlangObject o = m.getMsg();
+                throw new OtpErlangExit(o, m.getSenderPid());
+            } catch (final OtpErlangDecodeException e) {
+                throw new OtpErlangExit("unknown", m.getSenderPid());
+            }
+
+        default:
+            return m;
+        }
     }
 
     /**
      * Wait for a message to arrive for this mailbox.
-     * 
+     *
      * @param timeout
-     *                the time, in milliseconds, to wait for a message.
-     * 
+     *            the time, in milliseconds, to wait for a message.
+     *
      * @return an {@link OtpMsg OtpMsg} containing the header information as
      *         well as the body of the next message waiting in this mailbox.
-     * 
+     *
      * @exception OtpErlangExit
-     *                    if a linked {@link OtpErlangPid pid} has exited or has
-     *                    sent an exit signal to this mailbox.
-     * 
+     *                if a linked {@link OtpErlangPid pid} has exited or has
+     *                sent an exit signal to this mailbox.
+     *
      * @exception InterruptedException
-     *                    if no message if the method times out before a message
-     *                    becomes available.
+     *                if no message if the method times out before a message
+     *                becomes available.
      */
     public OtpMsg receiveMsg(final long timeout) throws InterruptedException,
-	    OtpErlangExit {
-	final OtpMsg m = (OtpMsg) queue.get(timeout);
-
-	if (m == null) {
-	    return null;
-	}
-
-	switch (m.type()) {
-	case OtpMsg.exitTag:
-	case OtpMsg.exit2Tag:
-	    try {
-		final OtpErlangObject o = m.getMsg();
-		throw new OtpErlangExit(o, m.getSenderPid());
-	    } catch (final OtpErlangDecodeException e) {
-		throw new OtpErlangExit("unknown", m.getSenderPid());
-	    }
-
-	default:
-	    return m;
-	}
+            OtpErlangExit {
+        final OtpMsg m = (OtpMsg) queue.get(timeout);
+
+        if (m == null) {
+            return null;
+        }
+
+        switch (m.type()) {
+        case OtpMsg.exitTag:
+        case OtpMsg.exit2Tag:
+            try {
+                final OtpErlangObject o = m.getMsg();
+                throw new OtpErlangExit(o, m.getSenderPid());
+            } catch (final OtpErlangDecodeException e) {
+                throw new OtpErlangExit("unknown", m.getSenderPid());
+            }
+
+        default:
+            return m;
+        }
     }
 
     /**
      * Send a message to a remote {@link OtpErlangPid pid}, representing either
      * another {@link OtpMbox mailbox} or an Erlang process.
-     * 
+     *
      * @param to
-     *                the {@link OtpErlangPid pid} identifying the intended
-     *                recipient of the message.
-     * 
+     *            the {@link OtpErlangPid pid} identifying the intended
+     *            recipient of the message.
+     *
      * @param msg
-     *                the body of the message to send.
-     * 
+     *            the body of the message to send.
+     *
      */
     public void send(final OtpErlangPid to, final OtpErlangObject msg) {
-	try {
-	    final String node = to.node();
-	    if (node.equals(home.node())) {
-		home.deliver(new OtpMsg(to, (OtpErlangObject) msg.clone()));
-	    } else {
-		final OtpCookedConnection conn = home.getConnection(node);
-		if (conn == null) {
-		    return;
-		}
-		conn.send(self, to, msg);
-	    }
-	} catch (final Exception e) {
-	}
+        try {
+            final String node = to.node();
+            if (node.equals(home.node())) {
+                home.deliver(new OtpMsg(to, (OtpErlangObject) msg.clone()));
+            } else {
+                final OtpCookedConnection conn = home.getConnection(node);
+                if (conn == null) {
+                    return;
+                }
+                conn.send(self, to, msg);
+            }
+        } catch (final Exception e) {
+        }
     }
 
     /**
      * Send a message to a named mailbox created from the same node as this
      * mailbox.
-     * 
+     *
      * @param aname
-     *                the registered name of recipient mailbox.
-     * 
+     *            the registered name of recipient mailbox.
+     *
      * @param msg
-     *                the body of the message to send.
-     * 
+     *            the body of the message to send.
+     *
      */
     public void send(final String aname, final OtpErlangObject msg) {
-	home.deliver(new OtpMsg(self, aname, (OtpErlangObject) msg.clone()));
+        home.deliver(new OtpMsg(self, aname, (OtpErlangObject) msg.clone()));
     }
 
     /**
      * Send a message to a named mailbox created from another node.
-     * 
+     *
      * @param aname
-     *                the registered name of recipient mailbox.
-     * 
+     *            the registered name of recipient mailbox.
+     *
      * @param node
-     *                the name of the remote node where the recipient mailbox is
-     *                registered.
-     * 
+     *            the name of the remote node where the recipient mailbox is
+     *            registered.
+     *
      * @param msg
-     *                the body of the message to send.
-     * 
+     *            the body of the message to send.
+     *
      */
     public void send(final String aname, final String node,
-	    final OtpErlangObject msg) {
-	try {
-	    final String currentNode = home.node();
-	    if (node.equals(currentNode)) {
-		send(aname, msg);
-	    } else if (node.indexOf('@', 0) < 0
-		    && node.equals(currentNode.substring(0, currentNode
-			    .indexOf('@', 0)))) {
-		send(aname, msg);
-	    } else {
-		// other node
-		final OtpCookedConnection conn = home.getConnection(node);
-		if (conn == null) {
-		    return;
-		}
-		conn.send(self, aname, msg);
-	    }
-	} catch (final Exception e) {
-	}
+            final OtpErlangObject msg) {
+        try {
+            final String currentNode = home.node();
+            if (node.equals(currentNode)) {
+                send(aname, msg);
+            } else if (node.indexOf('@', 0) < 0
+                    && node.equals(currentNode.substring(0,
+                            currentNode.indexOf('@', 0)))) {
+                send(aname, msg);
+            } else {
+                // other node
+                final OtpCookedConnection conn = home.getConnection(node);
+                if (conn == null) {
+                    return;
+                }
+                conn.send(self, aname, msg);
+            }
+        } catch (final Exception e) {
+        }
     }
 
     /**
      * Close this mailbox with the given reason.
-     * 
+     *
      * <p>
      * After this operation, the mailbox will no longer be able to receive
      * messages. Any delivered but as yet unretrieved messages can still be
      * retrieved however.
      * </p>
-     * 
+     *
      * <p>
      * If there are links from this mailbox to other {@link OtpErlangPid pids},
      * they will be broken when this method is called and exit signals will be
      * sent.
      * </p>
-     * 
+     *
      * @param reason
-     *                an Erlang term describing the reason for the exit.
+     *            an Erlang term describing the reason for the exit.
      */
     public void exit(final OtpErlangObject reason) {
-	home.closeMbox(this, reason);
+        home.closeMbox(this, reason);
     }
 
     /**
      * Equivalent to <code>exit(new OtpErlangAtom(reason))</code>.
-     * 
+     *
      * @see #exit(OtpErlangObject)
      */
     public void exit(final String reason) {
-	exit(new OtpErlangAtom(reason));
+        exit(new OtpErlangAtom(reason));
     }
 
     /**
@@ -434,17 +434,17 @@ public class OtpMbox {
      * does not cause any links to be broken, except indirectly if the remote
      * {@link OtpErlangPid pid} exits as a result of this exit signal.
      * </p>
-     * 
+     *
      * @param to
-     *                the {@link OtpErlangPid pid} to which the exit signal
-     *                should be sent.
-     * 
+     *            the {@link OtpErlangPid pid} to which the exit signal should
+     *            be sent.
+     *
      * @param reason
-     *                an Erlang term indicating the reason for the exit.
+     *            an Erlang term indicating the reason for the exit.
      */
     // it's called exit, but it sends exit2
     public void exit(final OtpErlangPid to, final OtpErlangObject reason) {
-	exit(2, to, reason);
+        exit(2, to, reason);
     }
 
     /**
@@ -452,38 +452,38 @@ public class OtpMbox {
      * Equivalent to <code>exit(to, new
      * OtpErlangAtom(reason))</code>.
      * </p>
-     * 
+     *
      * @see #exit(OtpErlangPid, OtpErlangObject)
      */
     public void exit(final OtpErlangPid to, final String reason) {
-	exit(to, new OtpErlangAtom(reason));
+        exit(to, new OtpErlangAtom(reason));
     }
 
     // this function used internally when "process" dies
     // since Erlang discerns between exit and exit/2.
     private void exit(final int arity, final OtpErlangPid to,
-	    final OtpErlangObject reason) {
-	try {
-	    final String node = to.node();
-	    if (node.equals(home.node())) {
-		home.deliver(new OtpMsg(OtpMsg.exitTag, self, to, reason));
-	    } else {
-		final OtpCookedConnection conn = home.getConnection(node);
-		if (conn == null) {
-		    return;
-		}
-		switch (arity) {
-		case 1:
-		    conn.exit(self, to, reason);
-		    break;
-
-		case 2:
-		    conn.exit2(self, to, reason);
-		    break;
-		}
-	    }
-	} catch (final Exception e) {
-	}
+            final OtpErlangObject reason) {
+        try {
+            final String node = to.node();
+            if (node.equals(home.node())) {
+                home.deliver(new OtpMsg(OtpMsg.exitTag, self, to, reason));
+            } else {
+                final OtpCookedConnection conn = home.getConnection(node);
+                if (conn == null) {
+                    return;
+                }
+                switch (arity) {
+                case 1:
+                    conn.exit(self, to, reason);
+                    break;
+
+                case 2:
+                    conn.exit2(self, to, reason);
+                    break;
+                }
+            }
+        } catch (final Exception e) {
+        }
     }
 
     /**
@@ -492,7 +492,7 @@ public class OtpMbox {
      * this method multiple times will not result in more than one link being
      * created.
      * </p>
-     * 
+     *
      * <p>
      * If the remote process subsequently exits or the mailbox is closed, a
      * subsequent attempt to retrieve a message through this mailbox will cause
@@ -500,42 +500,42 @@ public class OtpMbox {
      * if the sending mailbox is closed, the linked mailbox or process will
      * receive an exit signal.
      * </p>
-     * 
+     *
      * <p>
      * If the remote process cannot be reached in order to set the link, the
      * exception is raised immediately.
      * </p>
-     * 
+     *
      * @param to
-     *                the {@link OtpErlangPid pid} representing the object to
-     *                link to.
-     * 
+     *            the {@link OtpErlangPid pid} representing the object to link
+     *            to.
+     *
      * @exception OtpErlangExit
-     *                    if the {@link OtpErlangPid pid} referred to does not
-     *                    exist or could not be reached.
-     * 
+     *                if the {@link OtpErlangPid pid} referred to does not exist
+     *                or could not be reached.
+     *
      */
     public void link(final OtpErlangPid to) throws OtpErlangExit {
-	try {
-	    final String node = to.node();
-	    if (node.equals(home.node())) {
-		if (!home.deliver(new OtpMsg(OtpMsg.linkTag, self, to))) {
-		    throw new OtpErlangExit("noproc", to);
-		}
-	    } else {
-		final OtpCookedConnection conn = home.getConnection(node);
-		if (conn != null) {
-		    conn.link(self, to);
-		} else {
-		    throw new OtpErlangExit("noproc", to);
-		}
-	    }
-	} catch (final OtpErlangExit e) {
-	    throw e;
-	} catch (final Exception e) {
-	}
-
-	links.addLink(self, to);
+        try {
+            final String node = to.node();
+            if (node.equals(home.node())) {
+                if (!home.deliver(new OtpMsg(OtpMsg.linkTag, self, to))) {
+                    throw new OtpErlangExit("noproc", to);
+                }
+            } else {
+                final OtpCookedConnection conn = home.getConnection(node);
+                if (conn != null) {
+                    conn.link(self, to);
+                } else {
+                    throw new OtpErlangExit("noproc", to);
+                }
+            }
+        } catch (final OtpErlangExit e) {
+            throw e;
+        } catch (final Exception e) {
+        }
+
+        links.addLink(self, to);
     }
 
     /**
@@ -545,58 +545,58 @@ public class OtpMbox {
      * this method once will remove all links between this mailbox and the
      * remote {@link OtpErlangPid pid}.
      * </p>
-     * 
+     *
      * @param to
-     *                the {@link OtpErlangPid pid} representing the object to
-     *                unlink from.
-     * 
+     *            the {@link OtpErlangPid pid} representing the object to unlink
+     *            from.
+     *
      */
     public void unlink(final OtpErlangPid to) {
-	links.removeLink(self, to);
-
-	try {
-	    final String node = to.node();
-	    if (node.equals(home.node())) {
-		home.deliver(new OtpMsg(OtpMsg.unlinkTag, self, to));
-	    } else {
-		final OtpCookedConnection conn = home.getConnection(node);
-		if (conn != null) {
-		    conn.unlink(self, to);
-		}
-	    }
-	} catch (final Exception e) {
-	}
+        links.removeLink(self, to);
+
+        try {
+            final String node = to.node();
+            if (node.equals(home.node())) {
+                home.deliver(new OtpMsg(OtpMsg.unlinkTag, self, to));
+            } else {
+                final OtpCookedConnection conn = home.getConnection(node);
+                if (conn != null) {
+                    conn.unlink(self, to);
+                }
+            }
+        } catch (final Exception e) {
+        }
     }
 
     /**
      * <p>
      * Create a connection to a remote node.
      * </p>
-     * 
+     *
      * <p>
      * Strictly speaking, this method is not necessary simply to set up a
      * connection, since connections are created automatically first time a
      * message is sent to a {@link OtpErlangPid pid} on the remote node.
      * </p>
-     * 
+     *
      * <p>
      * This method makes it possible to wait for a node to come up, however, or
      * check that a node is still alive.
      * </p>
-     * 
+     *
      * <p>
      * This method calls a method with the same name in {@link OtpNode#ping
      * Otpnode} but is provided here for convenience.
      * </p>
-     * 
+     *
      * @param node
-     *                the name of the node to ping.
-     * 
+     *            the name of the node to ping.
+     *
      * @param timeout
-     *                the time, in milliseconds, before reporting failure.
+     *            the time, in milliseconds, before reporting failure.
      */
     public boolean ping(final String node, final long timeout) {
-	return home.ping(node, timeout);
+        return home.ping(node, timeout);
     }
 
     /**
@@ -604,78 +604,78 @@ public class OtpMbox {
      * Get a list of all known registered names on the same {@link OtpNode node}
      * as this mailbox.
      * </p>
-     * 
+     *
      * <p>
      * This method calls a method with the same name in {@link OtpNode#getNames
      * Otpnode} but is provided here for convenience.
      * </p>
-     * 
+     *
      * @return an array of Strings containing all registered names on this
      *         {@link OtpNode node}.
      */
     public String[] getNames() {
-	return home.getNames();
+        return home.getNames();
     }
 
     /**
      * Determine the {@link OtpErlangPid pid} corresponding to a registered name
      * on this {@link OtpNode node}.
-     * 
+     *
      * <p>
      * This method calls a method with the same name in {@link OtpNode#whereis
      * Otpnode} but is provided here for convenience.
      * </p>
-     * 
+     *
      * @return the {@link OtpErlangPid pid} corresponding to the registered
      *         name, or null if the name is not known on this node.
      */
     public OtpErlangPid whereis(final String aname) {
-	return home.whereis(aname);
+        return home.whereis(aname);
     }
 
     /**
      * Close this mailbox.
-     * 
+     *
      * <p>
      * After this operation, the mailbox will no longer be able to receive
      * messages. Any delivered but as yet unretrieved messages can still be
      * retrieved however.
      * </p>
-     * 
+     *
      * <p>
      * If there are links from this mailbox to other {@link OtpErlangPid pids},
      * they will be broken when this method is called and exit signals with
      * reason 'normal' will be sent.
      * </p>
-     * 
+     *
      * <p>
      * This is equivalent to {@link #exit(String) exit("normal")}.
      * </p>
      */
     public void close() {
-	home.closeMbox(this);
+        home.closeMbox(this);
     }
 
     @Override
     protected void finalize() {
-	close();
-	queue.flush();
+        close();
+        queue.flush();
     }
 
     /**
      * Determine if two mailboxes are equal.
-     * 
+     *
      * @return true if both Objects are mailboxes with the same identifying
      *         {@link OtpErlangPid pids}.
      */
     @Override
     public boolean equals(final Object o) {
-	if (!(o instanceof OtpMbox)) {
-	    return false;
-	}
+        if (!(o instanceof OtpMbox)) {
+            return false;
+        }
 
-	final OtpMbox m = (OtpMbox) o;
-	return m.self.equals(self);
+        final OtpMbox m = (OtpMbox) o;
+        return m.self.equals(self);
     }
 
     @Override
@@ -685,43 +685,43 @@ public class OtpMbox {
 
     /*
      * called by OtpNode to deliver message to this mailbox.
-     * 
+     *
      * About exit and exit2: both cause exception to be raised upon receive().
      * However exit (not 2) causes any link to be removed as well, while exit2
      * leaves any links intact.
      */
     void deliver(final OtpMsg m) {
-	switch (m.type()) {
-	case OtpMsg.linkTag:
-	    links.addLink(self, m.getSenderPid());
-	    break;
-
-	case OtpMsg.unlinkTag:
-	    links.removeLink(self, m.getSenderPid());
-	    break;
-
-	case OtpMsg.exitTag:
-	    links.removeLink(self, m.getSenderPid());
-	    queue.put(m);
-	    break;
-
-	case OtpMsg.exit2Tag:
-	default:
-	    queue.put(m);
-	    break;
-	}
+        switch (m.type()) {
+        case OtpMsg.linkTag:
+            links.addLink(self, m.getSenderPid());
+            break;
+
+        case OtpMsg.unlinkTag:
+            links.removeLink(self, m.getSenderPid());
+            break;
+
+        case OtpMsg.exitTag:
+            links.removeLink(self, m.getSenderPid());
+            queue.put(m);
+            break;
+
+        case OtpMsg.exit2Tag:
+        default:
+            queue.put(m);
+            break;
+        }
     }
 
     // used to break all known links to this mbox
     void breakLinks(final OtpErlangObject reason) {
-	final Link[] l = links.clearLinks();
+        final Link[] l = links.clearLinks();
 
-	if (l != null) {
-	    final int len = l.length;
+        if (l != null) {
+            final int len = l.length;
 
-	    for (int i = 0; i < len; i++) {
-		exit(1, l[i].remote(), reason);
-	    }
-	}
+            for (int i = 0; i < len; i++) {
+                exit(1, l[i].remote(), reason);
+            }
+        }
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpMsg.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpMsg.java
index 7c5bc69361..fb750d8afe 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpMsg.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpMsg.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2010. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -22,23 +22,25 @@ package com.ericsson.otp.erlang;
  * <p>
  * Provides a carrier for Erlang messages.
  * </p>
- * 
+ *
  * <p>
  * Instances of this class are created to package header and payload information
  * in received Erlang messages so that the recipient can obtain both parts with
  * a single call to {@link OtpMbox#receiveMsg receiveMsg()}.
  * </p>
- * 
+ *
  * <p>
- * The header information that is available is as follows: <ul>
- * <li> a tag indicating the type of message
- * <li> the intended recipient of the message, either as a
- * {@link OtpErlangPid pid} or as a String, but never both.
- * <li> (sometimes) the sender of the message. Due to some eccentric
+ * The header information that is available is as follows:
+ * <ul>
+ * <li>a tag indicating the type of message
+ * <li>the intended recipient of the message, either as a {@link OtpErlangPid
+ * pid} or as a String, but never both.
+ * <li>(sometimes) the sender of the message. Due to some eccentric
  * characteristics of the Erlang distribution protocol, not all messages have
  * information about the sending process. In particular, only messages whose tag
- * is {@link OtpMsg#regSendTag regSendTag} contain sender information. </ul>
- * 
+ * is {@link OtpMsg#regSendTag regSendTag} contain sender information.
+ * </ul>
+ *
  * <p>
  * Message are sent using the Erlang external format (see separate
  * documentation). When a message is received and delivered to the recipient
@@ -68,87 +70,87 @@ public class OtpMsg {
 
     // send has receiver pid but no sender information
     OtpMsg(final OtpErlangPid to, final OtpInputStream paybuf) {
-	tag = sendTag;
-	from = null;
-	this.to = to;
-	toName = null;
-	this.paybuf = paybuf;
-	payload = null;
+        tag = sendTag;
+        from = null;
+        this.to = to;
+        toName = null;
+        this.paybuf = paybuf;
+        payload = null;
     }
 
     // send has receiver pid but no sender information
     OtpMsg(final OtpErlangPid to, final OtpErlangObject payload) {
-	tag = sendTag;
-	from = null;
-	this.to = to;
-	toName = null;
-	paybuf = null;
-	this.payload = payload;
+        tag = sendTag;
+        from = null;
+        this.to = to;
+        toName = null;
+        paybuf = null;
+        this.payload = payload;
     }
 
     // send_reg has sender pid and receiver name
     OtpMsg(final OtpErlangPid from, final String toName,
-	    final OtpInputStream paybuf) {
-	tag = regSendTag;
-	this.from = from;
-	this.toName = toName;
-	to = null;
-	this.paybuf = paybuf;
-	payload = null;
+            final OtpInputStream paybuf) {
+        tag = regSendTag;
+        this.from = from;
+        this.toName = toName;
+        to = null;
+        this.paybuf = paybuf;
+        payload = null;
     }
 
     // send_reg has sender pid and receiver name
     OtpMsg(final OtpErlangPid from, final String toName,
-	    final OtpErlangObject payload) {
-	tag = regSendTag;
-	this.from = from;
-	this.toName = toName;
-	to = null;
-	paybuf = null;
-	this.payload = payload;
+            final OtpErlangObject payload) {
+        tag = regSendTag;
+        this.from = from;
+        this.toName = toName;
+        to = null;
+        paybuf = null;
+        this.payload = payload;
     }
 
     // exit (etc) has from, to, reason
     OtpMsg(final int tag, final OtpErlangPid from, final OtpErlangPid to,
-	    final OtpErlangObject reason) {
-	this.tag = tag;
-	this.from = from;
-	this.to = to;
-	paybuf = null;
-	payload = reason;
+            final OtpErlangObject reason) {
+        this.tag = tag;
+        this.from = from;
+        this.to = to;
+        paybuf = null;
+        payload = reason;
     }
 
     // special case when reason is an atom (i.e. most of the time)
     OtpMsg(final int tag, final OtpErlangPid from, final OtpErlangPid to,
-	    final String reason) {
-	this.tag = tag;
-	this.from = from;
-	this.to = to;
-	paybuf = null;
-	payload = new OtpErlangAtom(reason);
+            final String reason) {
+        this.tag = tag;
+        this.from = from;
+        this.to = to;
+        paybuf = null;
+        payload = new OtpErlangAtom(reason);
     }
 
     // other message types (link, unlink)
     OtpMsg(final int tag, final OtpErlangPid from, final OtpErlangPid to) {
-	// convert TT-tags to equiv non-TT versions
-    int atag = tag;
-	if (tag > 10) {
-        atag -= 10;
-	}
+        // convert TT-tags to equiv non-TT versions
+        int atag = tag;
+        if (tag > 10) {
+            atag -= 10;
+        }
 
-    this.tag = atag;
-	this.from = from;
-	this.to = to;
+        this.tag = atag;
+        this.from = from;
+        this.to = to;
     }
 
     /**
      * Get the payload from this message without deserializing it.
-     * 
+     *
      * @return the serialized Erlang term contained in this message.
-     * 
+     *
      */
     OtpInputStream getMsgBuf() {
-	return paybuf;
+        return paybuf;
     }
 
     /**
@@ -157,36 +159,37 @@ public class OtpMsg {
      * type of message. Valid values are the ``tag'' constants defined in this
      * class.
      * </p>
-     * 
+     *
      * <p>
      * The tab identifies not only the type of message but also the content of
      * the OtpMsg object, since different messages have different components, as
      * follows:
      * </p>
-     * 
+     *
      * <ul>
-     * <li> sendTag identifies a "normal" message. The recipient is a
-     * {@link OtpErlangPid Pid} and it is available through {@link
-     * #getRecipientPid getRecipientPid()}. Sender information is not available.
-     * The message body can be retrieved with {@link #getMsg getMsg()}. </li>
-     * 
-     * <li> regSendTag also identifies a "normal" message. The recipient here is
+     * <li>sendTag identifies a "normal" message. The recipient is a
+     * {@link OtpErlangPid Pid} and it is available through
+     * {@link #getRecipientPid getRecipientPid()}. Sender information is not
+     * available. The message body can be retrieved with {@link #getMsg
+     * getMsg()}.</li>
+     *
+     * <li>regSendTag also identifies a "normal" message. The recipient here is
      * a String and it is available through {@link #getRecipientName
      * getRecipientName()}. Sender information is available through
      * #getSenderPid getSenderPid()}. The message body can be retrieved with
-     * {@link #getMsg getMsg()}. </li>
-     * 
-     * <li> linkTag identifies a link request. The Pid of the sender is
-     * available, as well as the Pid to which the link should be made. </li>
-     * 
-     * <li> exitTag and exit2Tag messages are sent as a result of broken links.
+     * {@link #getMsg getMsg()}.</li>
+     *
+     * <li>linkTag identifies a link request. The Pid of the sender is
+     * available, as well as the Pid to which the link should be made.</li>
+     *
+     * <li>exitTag and exit2Tag messages are sent as a result of broken links.
      * Both sender and recipient Pids and are available through the
      * corresponding methods, and the "reason" is available through
-     * {@link #getMsg getMsg()}. </li>
+     * {@link #getMsg getMsg()}.</li>
      * </ul>
      */
     public int type() {
-	return tag;
+        return tag;
     }
 
     /**
@@ -194,42 +197,42 @@ public class OtpMsg {
      * Deserialize and return a new copy of the message contained in this
      * OtpMsg.
      * </p>
-     * 
+     *
      * <p>
      * The first time this method is called the actual payload is deserialized
      * and the Erlang term is created. Calling this method subsequent times will
      * not cuase the message to be deserialized additional times, instead the
      * same Erlang term object will be returned.
      * </p>
-     * 
+     *
      * @return an Erlang term.
-     * 
+     *
      * @exception OtpErlangDecodeException
-     *                    if the byte stream could not be deserialized.
-     * 
+     *                if the byte stream could not be deserialized.
+     *
      */
     public OtpErlangObject getMsg() throws OtpErlangDecodeException {
-	if (payload == null) {
-	    payload = paybuf.read_any();
-	}
-	return payload;
+        if (payload == null) {
+            payload = paybuf.read_any();
+        }
+        return payload;
     }
 
     /**
      * <p>
      * Get the name of the recipient for this message.
      * </p>
-     * 
+     *
      * <p>
      * Messages are sent to Pids or names. If this message was sent to a name
      * then the name is returned by this method.
      * </p>
-     * 
+     *
      * @return the name of the recipient, or null if the recipient was in fact a
      *         Pid.
      */
     public String getRecipientName() {
-	return toName;
+        return toName;
     }
 
     /**
@@ -237,18 +240,18 @@ public class OtpMsg {
      * Get the Pid of the recipient for this message, if it is a sendTag
      * message.
      * </p>
-     * 
+     *
      * <p>
      * Messages are sent to Pids or names. If this message was sent to a Pid
      * then the Pid is returned by this method. The recipient Pid is also
      * available for link, unlink and exit messages.
      * </p>
-     * 
+     *
      * @return the Pid of the recipient, or null if the recipient was in fact a
      *         name.
      */
     public OtpErlangPid getRecipientPid() {
-	return to;
+        return to;
     }
 
     /**
@@ -256,36 +259,36 @@ public class OtpMsg {
      * Get the name of the recipient for this message, if it is a regSendTag
      * message.
      * </p>
-     * 
+     *
      * <p>
      * Messages are sent to Pids or names. If this message was sent to a name
      * then the name is returned by this method.
      * </p>
-     * 
+     *
      * @return the Pid of the recipient, or null if the recipient was in fact a
      *         name.
      */
     public Object getRecipient() {
-	if (toName != null) {
-	    return toName;
-	}
-	return to;
+        if (toName != null) {
+            return toName;
+        }
+        return to;
     }
 
     /**
      * <p>
      * Get the Pid of the sender of this message.
      * </p>
-     * 
+     *
      * <p>
      * For messages sent to names, the Pid of the sender is included with the
      * message. The sender Pid is also available for link, unlink and exit
      * messages. It is not available for sendTag messages sent to Pids.
      * </p>
-     * 
+     *
      * @return the Pid of the sender, or null if it was not available.
      */
     public OtpErlangPid getSenderPid() {
-	return from;
+        return from;
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpNode.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpNode.java
index 68addb9f2c..7512d34c21 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpNode.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpNode.java
@@ -1,27 +1,25 @@
-/* 
+/*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2012. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
 import java.io.IOException;
 import java.lang.ref.WeakReference;
-import java.net.ServerSocket;
-import java.net.Socket;
 import java.util.Collection;
 import java.util.Enumeration;
 import java.util.Hashtable;
@@ -36,21 +34,21 @@ import java.util.Iterator;
  * communication mechanism is automatic and hidden from the application
  * programmer.
  * </p>
- * 
+ *
  * <p>
  * Once an instance of this class has been created, obtain one or more mailboxes
  * in order to send or receive messages. The first message sent to a given node
  * will cause a connection to be set up to that node. Any messages received will
  * be delivered to the appropriate mailboxes.
  * </p>
- * 
+ *
  * <p>
  * To shut down the node, call {@link #close close()}. This will prevent the
  * node from accepting additional connections and it will cause all existing
  * connections to be closed. Any unread messages in existing mailboxes can still
  * be read, however no new messages will be delivered to the mailboxes.
  * </p>
- * 
+ *
  * <p>
  * Note that the use of this class requires that Epmd (Erlang Port Mapper
  * Daemon) is running on each cooperating host. This class does not start Epmd
@@ -83,74 +81,156 @@ public class OtpNode extends OtpLocalNode {
      * directory. The home directory is obtained from the System property
      * "user.home".
      * </p>
-     * 
+     *
      * <p>
      * If the file does not exist, an empty string is used. This method makes no
      * attempt to create the file.
      * </p>
-     * 
+     *
      * @param node
      *            the name of this node.
-     * 
+     *
      * @exception IOException
      *                if communication could not be initialized.
-     * 
+     *
      */
     public OtpNode(final String node) throws IOException {
-	this(node, defaultCookie, 0);
+        super(node);
+
+        init(0);
+    }
+
+    /**
+     * <p>
+     * Create a node using the default cookie. The default cookie is found by
+     * reading the first line of the .erlang.cookie file in the user's home
+     * directory. The home directory is obtained from the System property
+     * "user.home".
+     * </p>
+     *
+     * <p>
+     * If the file does not exist, an empty string is used. This method makes no
+     * attempt to create the file.
+     * </p>
+     *
+     * @param node
+     *            the name of this node.
+     *
+     * @param transportFactory
+     *            the transport factory to use when creating connections.
+     *
+     * @exception IOException
+     *                if communication could not be initialized.
+     *
+     */
+    public OtpNode(final String node,
+            final OtpTransportFactory transportFactory) throws IOException {
+        super(node, transportFactory);
+
+        init(0);
     }
 
     /**
      * Create a node.
-     * 
+     *
      * @param node
      *            the name of this node.
-     * 
+     *
      * @param cookie
      *            the authorization cookie that will be used by this node when
      *            it communicates with other nodes.
-     * 
+     *
      * @exception IOException
      *                if communication could not be initialized.
-     * 
+     *
      */
     public OtpNode(final String node, final String cookie) throws IOException {
-	this(node, cookie, 0);
+        this(node, cookie, 0);
+    }
+
+    /**
+     * Create a node.
+     *
+     * @param node
+     *            the name of this node.
+     *
+     * @param cookie
+     *            the authorization cookie that will be used by this node when
+     *            it communicates with other nodes.
+     *
+     * @param transportFactory
+     *            the transport factory to use when creating connections.
+     *
+     * @exception IOException
+     *                if communication could not be initialized.
+     *
+     */
+    public OtpNode(final String node, final String cookie,
+            final OtpTransportFactory transportFactory) throws IOException {
+        this(node, cookie, 0, transportFactory);
     }
 
     /**
      * Create a node.
-     * 
+     *
      * @param node
      *            the name of this node.
-     * 
+     *
      * @param cookie
      *            the authorization cookie that will be used by this node when
      *            it communicates with other nodes.
-     * 
+     *
      * @param port
      *            the port number you wish to use for incoming connections.
      *            Specifying 0 lets the system choose an available port.
-     * 
+     *
      * @exception IOException
      *                if communication could not be initialized.
-     * 
+     *
      */
     public OtpNode(final String node, final String cookie, final int port)
-	    throws IOException {
-	super(node, cookie);
+            throws IOException {
+        super(node, cookie);
+
+        init(port);
+    }
+
+    /**
+     * Create a node.
+     *
+     * @param node
+     *            the name of this node.
+     *
+     * @param cookie
+     *            the authorization cookie that will be used by this node when
+     *            it communicates with other nodes.
+     *
+     * @param port
+     *            the port number you wish to use for incoming connections.
+     *            Specifying 0 lets the system choose an available port.
+     *
+     * @param transportFactory
+     *            the transport factory to use when creating connections.
+     *
+     * @exception IOException
+     *                if communication could not be initialized.
+     *
+     */
+    public OtpNode(final String node, final String cookie, final int port,
+            final OtpTransportFactory transportFactory) throws IOException {
+        super(node, cookie, transportFactory);
 
-	init(port);
+        init(port);
     }
 
     private synchronized void init(final int aport) throws IOException {
-	if (!initDone) {
-	    connections = new Hashtable<String, OtpCookedConnection>(17,
-		    (float) 0.95);
-	    mboxes = new Mailboxes();
-	    acceptor = new Acceptor(aport);
-	    initDone = true;
-	}
+        if (!initDone) {
+            connections = new Hashtable<String, OtpCookedConnection>(17,
+                    (float) 0.95);
+            mboxes = new Mailboxes();
+            acceptor = new Acceptor(aport);
+            initDone = true;
+        }
     }
 
     /**
@@ -158,24 +238,24 @@ public class OtpNode extends OtpLocalNode {
      * and close all existing connections.
      */
     public synchronized void close() {
-	acceptor.quit();
-	OtpCookedConnection conn;
-	final Collection<OtpCookedConnection> coll = connections.values();
-	final Iterator<OtpCookedConnection> it = coll.iterator();
-
-	mboxes.clear();
-
-	while (it.hasNext()) {
-	    conn = it.next();
-	    it.remove();
-	    conn.close();
-	}
-	initDone = false;
+        acceptor.quit();
+        OtpCookedConnection conn;
+        final Collection<OtpCookedConnection> coll = connections.values();
+        final Iterator<OtpCookedConnection> it = coll.iterator();
+
+        mboxes.clear();
+
+        while (it.hasNext()) {
+            conn = it.next();
+            it.remove();
+            conn.close();
+        }
+        initDone = false;
     }
 
     @Override
     protected void finalize() {
-	close();
+        close();
     }
 
     /**
@@ -183,65 +263,65 @@ public class OtpNode extends OtpLocalNode {
      * receive messages with other, similar mailboxes and with Erlang processes.
      * Messages can be sent to this mailbox by using its associated
      * {@link OtpMbox#self() pid}.
-     * 
+     *
      * @return a mailbox.
      */
     public OtpMbox createMbox() {
-	return mboxes.create();
+        return mboxes.create();
     }
 
     /**
      * Close the specified mailbox with reason 'normal'.
-     * 
+     *
      * @param mbox
      *            the mailbox to close.
-     * 
+     *
      *            <p>
      *            After this operation, the mailbox will no longer be able to
      *            receive messages. Any delivered but as yet unretrieved
      *            messages can still be retrieved however.
      *            </p>
-     * 
+     *
      *            <p>
      *            If there are links from the mailbox to other
      *            {@link OtpErlangPid pids}, they will be broken when this
      *            method is called and exit signals with reason 'normal' will be
      *            sent.
      *            </p>
-     * 
+     *
      */
     public void closeMbox(final OtpMbox mbox) {
-	closeMbox(mbox, new OtpErlangAtom("normal"));
+        closeMbox(mbox, new OtpErlangAtom("normal"));
     }
 
     /**
      * Close the specified mailbox with the given reason.
-     * 
+     *
      * @param mbox
      *            the mailbox to close.
      * @param reason
      *            an Erlang term describing the reason for the termination.
-     * 
+     *
      *            <p>
      *            After this operation, the mailbox will no longer be able to
      *            receive messages. Any delivered but as yet unretrieved
      *            messages can still be retrieved however.
      *            </p>
-     * 
+     *
      *            <p>
      *            If there are links from the mailbox to other
      *            {@link OtpErlangPid pids}, they will be broken when this
      *            method is called and exit signals with the given reason will
      *            be sent.
      *            </p>
-     * 
+     *
      */
     public void closeMbox(final OtpMbox mbox, final OtpErlangObject reason) {
-	if (mbox != null) {
-	    mboxes.remove(mbox);
-	    mbox.name = null;
-	    mbox.breakLinks(reason);
-	}
+        if (mbox != null) {
+            mboxes.remove(mbox);
+            mbox.name = null;
+            mbox.breakLinks(reason);
+        }
     }
 
     /**
@@ -249,16 +329,16 @@ public class OtpNode extends OtpLocalNode {
      * with other, similar mailboxes and with Erlang processes. Messages can be
      * sent to this mailbox by using its registered name or the associated
      * {@link OtpMbox#self() pid}.
-     * 
+     *
      * @param name
      *            a name to register for this mailbox. The name must be unique
      *            within this OtpNode.
-     * 
+     *
      * @return a mailbox, or null if the name was already in use.
-     * 
+     *
      */
     public OtpMbox createMbox(final String name) {
-	return mboxes.create(name);
+        return mboxes.create(name);
     }
 
     /**
@@ -269,58 +349,58 @@ public class OtpNode extends OtpLocalNode {
      * name; if the mailbox already had a name, calling this method will
      * supercede that name.
      * </p>
-     * 
+     *
      * @param name
      *            the name to register for the mailbox. Specify null to
      *            unregister the existing name from this mailbox.
-     * 
+     *
      * @param mbox
      *            the mailbox to associate with the name.
-     * 
+     *
      * @return true if the name was available, or false otherwise.
      */
     public boolean registerName(final String name, final OtpMbox mbox) {
-	return mboxes.register(name, mbox);
+        return mboxes.register(name, mbox);
     }
 
     /**
      * Get a list of all known registered names on this node.
-     * 
+     *
      * @return an array of Strings, containins all known registered names on
      *         this node.
      */
 
     public String[] getNames() {
-	return mboxes.names();
+        return mboxes.names();
     }
 
     /**
      * Determine the {@link OtpErlangPid pid} corresponding to a registered name
      * on this node.
-     * 
+     *
      * @return the {@link OtpErlangPid pid} corresponding to the registered
      *         name, or null if the name is not known on this node.
      */
     public OtpErlangPid whereis(final String name) {
-	final OtpMbox m = mboxes.get(name);
-	if (m != null) {
-	    return m.self();
-	}
-	return null;
+        final OtpMbox m = mboxes.get(name);
+        if (m != null) {
+            return m.self();
+        }
+        return null;
     }
 
     /**
      * Register interest in certain system events. The {@link OtpNodeStatus
      * OtpNodeStatus} handler object contains callback methods, that will be
      * called when certain events occur.
-     * 
+     *
      * @param ahandler
      *            the callback object to register. To clear the handler, specify
      *            null as the handler to use.
-     * 
+     *
      */
     public synchronized void registerStatusHandler(final OtpNodeStatus ahandler) {
-	this.handler = ahandler;
+        handler = ahandler;
     }
 
     /**
@@ -329,7 +409,7 @@ public class OtpNode extends OtpLocalNode {
      * setting up a connection to the remote node (if possible). Only a single
      * outgoing message is sent; the timeout is how long to wait for a response.
      * </p>
-     * 
+     *
      * <p>
      * Only a single attempt is made to connect to the remote node, so for
      * example it is not possible to specify an extremely long timeout and
@@ -337,74 +417,73 @@ public class OtpNode extends OtpLocalNode {
      * wait for a remote node to be started, the following construction may be
      * useful:
      * </p>
-     * 
+     *
      * <pre>
      * // ping every 2 seconds until positive response
      * while (!me.ping(him, 2000))
      *     ;
      * </pre>
-     * 
+     *
      * @param anode
      *            the name of the node to ping.
-     * 
+     *
      * @param timeout
      *            the time, in milliseconds, to wait for response before
      *            returning false.
-     * 
+     *
      * @return true if the node was alive and the correct ping response was
      *         returned. false if the correct response was not returned on time.
      */
     /*
      * internal info about the message formats...
-     * 
+     *
      * the request: -> REG_SEND {6,#Pid<[email protected]>,'',net_kernel}
      * {'$gen_call',{#Pid<[email protected]>,#Ref<[email protected]>},{is_auth,bingo@aule}}
-     * 
+     *
      * the reply: <- SEND {2,'',#Pid<[email protected]>} {#Ref<[email protected]>,yes}
      */
     public boolean ping(final String anode, final long timeout) {
-	if (anode.equals(this.node)) {
-	    return true;
-	} else if (anode.indexOf('@', 0) < 0
-		&& anode.equals(this.node
-			.substring(0, this.node.indexOf('@', 0)))) {
-	    return true;
-	}
-
-	// other node
-	OtpMbox mbox = null;
-	try {
-	    mbox = createMbox();
-	    mbox.send("net_kernel", anode, getPingTuple(mbox));
-	    final OtpErlangObject reply = mbox.receive(timeout);
-
-	    final OtpErlangTuple t = (OtpErlangTuple) reply;
-	    final OtpErlangAtom a = (OtpErlangAtom) t.elementAt(1);
-	    return "yes".equals(a.atomValue());
-	} catch (final Exception e) {
-	} finally {
-	    closeMbox(mbox);
-	}
-	return false;
+        if (anode.equals(node)) {
+            return true;
+        } else if (anode.indexOf('@', 0) < 0
+                && anode.equals(node.substring(0, node.indexOf('@', 0)))) {
+            return true;
+        }
+
+        // other node
+        OtpMbox mbox = null;
+        try {
+            mbox = createMbox();
+            mbox.send("net_kernel", anode, getPingTuple(mbox));
+            final OtpErlangObject reply = mbox.receive(timeout);
+
+            final OtpErlangTuple t = (OtpErlangTuple) reply;
+            final OtpErlangAtom a = (OtpErlangAtom) t.elementAt(1);
+            return "yes".equals(a.atomValue());
+        } catch (final Exception e) {
+        } finally {
+            closeMbox(mbox);
+        }
+        return false;
     }
 
     /* create the outgoing ping message */
     private OtpErlangTuple getPingTuple(final OtpMbox mbox) {
-	final OtpErlangObject[] ping = new OtpErlangObject[3];
-	final OtpErlangObject[] pid = new OtpErlangObject[2];
-	final OtpErlangObject[] anode = new OtpErlangObject[2];
+        final OtpErlangObject[] ping = new OtpErlangObject[3];
+        final OtpErlangObject[] pid = new OtpErlangObject[2];
+        final OtpErlangObject[] anode = new OtpErlangObject[2];
 
-	pid[0] = mbox.self();
-	pid[1] = createRef();
+        pid[0] = mbox.self();
+        pid[1] = createRef();
 
-	anode[0] = new OtpErlangAtom("is_auth");
-	anode[1] = new OtpErlangAtom(node());
+        anode[0] = new OtpErlangAtom("is_auth");
+        anode[1] = new OtpErlangAtom(node());
 
-	ping[0] = new OtpErlangAtom("$gen_call");
-	ping[1] = new OtpErlangTuple(pid);
-	ping[2] = new OtpErlangTuple(anode);
+        ping[0] = new OtpErlangAtom("$gen_call");
+        ping[1] = new OtpErlangTuple(pid);
+        ping[2] = new OtpErlangTuple(anode);
 
-	return new OtpErlangTuple(ping);
+        return new OtpErlangTuple(ping);
     }
 
     /*
@@ -412,27 +491,27 @@ public class OtpNode extends OtpLocalNode {
      * pings.
      */
     private boolean netKernel(final OtpMsg m) {
-	OtpMbox mbox = null;
-	try {
-	    final OtpErlangTuple t = (OtpErlangTuple) m.getMsg();
-	    final OtpErlangTuple req = (OtpErlangTuple) t.elementAt(1); // actual
-	    // request
-
-	    final OtpErlangPid pid = (OtpErlangPid) req.elementAt(0); // originating
-	    // pid
-
-	    final OtpErlangObject[] pong = new OtpErlangObject[2];
-	    pong[0] = req.elementAt(1); // his #Ref
-	    pong[1] = new OtpErlangAtom("yes");
-
-	    mbox = createMbox();
-	    mbox.send(pid, new OtpErlangTuple(pong));
-	    return true;
-	} catch (final Exception e) {
-	} finally {
-	    closeMbox(mbox);
-	}
-	return false;
+        OtpMbox mbox = null;
+        try {
+            final OtpErlangTuple t = (OtpErlangTuple) m.getMsg();
+            final OtpErlangTuple req = (OtpErlangTuple) t.elementAt(1); // actual
+            // request
+
+            final OtpErlangPid pid = (OtpErlangPid) req.elementAt(0); // originating
+            // pid
+
+            final OtpErlangObject[] pong = new OtpErlangObject[2];
+            pong[0] = req.elementAt(1); // his #Ref
+            pong[1] = new OtpErlangAtom("yes");
+
+            mbox = createMbox();
+            mbox.send(pid, new OtpErlangTuple(pong));
+            return true;
+        } catch (final Exception e) {
+        } finally {
+            closeMbox(mbox);
+        }
+        return false;
     }
 
     /*
@@ -440,31 +519,31 @@ public class OtpNode extends OtpLocalNode {
      * delivered successfully, or false otherwise.
      */
     boolean deliver(final OtpMsg m) {
-	OtpMbox mbox = null;
-
-	try {
-	    final int t = m.type();
-
-	    if (t == OtpMsg.regSendTag) {
-		final String name = m.getRecipientName();
-		/* special case for netKernel requests */
-		if (name.equals("net_kernel")) {
-		    return netKernel(m);
-		}
-        mbox = mboxes.get(name);
-	    } else {
-		mbox = mboxes.get(m.getRecipientPid());
-	    }
-
-	    if (mbox == null) {
-		return false;
-	    }
-	    mbox.deliver(m);
-	} catch (final Exception e) {
-	    return false;
-	}
-
-	return true;
+        OtpMbox mbox = null;
+
+        try {
+            final int t = m.type();
+
+            if (t == OtpMsg.regSendTag) {
+                final String name = m.getRecipientName();
+                /* special case for netKernel requests */
+                if (name.equals("net_kernel")) {
+                    return netKernel(m);
+                }
+                mbox = mboxes.get(name);
+            } else {
+                mbox = mboxes.get(m.getRecipientPid());
+            }
+
+            if (mbox == null) {
+                return false;
+            }
+            mbox.deliver(m);
+        } catch (final Exception e) {
+            return false;
+        }
+
+        return true;
     }
 
     /*
@@ -472,86 +551,86 @@ public class OtpNode extends OtpLocalNode {
      * specified by the application
      */
     void deliverError(final OtpCookedConnection conn, final Exception e) {
-	removeConnection(conn);
-	remoteStatus(conn.name, false, e);
+        removeConnection(conn);
+        remoteStatus(conn.name, false, e);
     }
 
     /*
      * find or create a connection to the given node
      */
     OtpCookedConnection getConnection(final String anode) {
-	OtpPeer peer = null;
-	OtpCookedConnection conn = null;
-
-	synchronized (connections) {
-	    // first just try looking up the name as-is
-	    conn = connections.get(anode);
-
-	    if (conn == null) {
-		// in case node had no '@' add localhost info and try again
-		peer = new OtpPeer(anode);
-		conn = connections.get(peer.node());
-
-		if (conn == null) {
-		    try {
-			conn = new OtpCookedConnection(this, peer);
-			conn.setFlags(connFlags);
-			addConnection(conn);
-		    } catch (final Exception e) {
-			/* false = outgoing */
-			connAttempt(peer.node(), false, e);
-		    }
-		}
-	    }
-	    return conn;
-	}
+        OtpPeer peer = null;
+        OtpCookedConnection conn = null;
+
+        synchronized (connections) {
+            // first just try looking up the name as-is
+            conn = connections.get(anode);
+
+            if (conn == null) {
+                // in case node had no '@' add localhost info and try again
+                peer = new OtpPeer(anode);
+                conn = connections.get(peer.node());
+
+                if (conn == null) {
+                    try {
+                        conn = new OtpCookedConnection(this, peer);
+                        conn.setFlags(connFlags);
+                        addConnection(conn);
+                    } catch (final Exception e) {
+                        /* false = outgoing */
+                        connAttempt(peer.node(), false, e);
+                    }
+                }
+            }
+            return conn;
+        }
     }
 
     void addConnection(final OtpCookedConnection conn) {
-	if (conn != null && conn.name != null) {
-	    connections.put(conn.name, conn);
-	    remoteStatus(conn.name, true, null);
-	}
+        if (conn != null && conn.name != null) {
+            connections.put(conn.name, conn);
+            remoteStatus(conn.name, true, null);
+        }
     }
 
     private void removeConnection(final OtpCookedConnection conn) {
-	if (conn != null && conn.name != null) {
-	    connections.remove(conn.name);
-	}
+        if (conn != null && conn.name != null) {
+            connections.remove(conn.name);
+        }
     }
 
     /* use these wrappers to call handler functions */
-    private synchronized void remoteStatus(final String anode, final boolean up,
-	    final Object info) {
-	if (handler == null) {
-	    return;
-	}
-	try {
-	    handler.remoteStatus(anode, up, info);
-	} catch (final Exception e) {
-	}
+    private synchronized void remoteStatus(final String anode,
+            final boolean up, final Object info) {
+        if (handler == null) {
+            return;
+        }
+        try {
+            handler.remoteStatus(anode, up, info);
+        } catch (final Exception e) {
+        }
     }
 
     synchronized void localStatus(final String anode, final boolean up,
-	    final Object info) {
-	if (handler == null) {
-	    return;
-	}
-	try {
-	    handler.localStatus(anode, up, info);
-	} catch (final Exception e) {
-	}
+            final Object info) {
+        if (handler == null) {
+            return;
+        }
+        try {
+            handler.localStatus(anode, up, info);
+        } catch (final Exception e) {
+        }
     }
 
     synchronized void connAttempt(final String anode, final boolean incoming,
-	    final Object info) {
-	if (handler == null) {
-	    return;
-	}
-	try {
-	    handler.connAttempt(anode, incoming, info);
-	} catch (final Exception e) {
-	}
+            final Object info) {
+        if (handler == null) {
+            return;
+        }
+        try {
+            handler.connAttempt(anode, incoming, info);
+        } catch (final Exception e) {
+        }
     }
 
     /*
@@ -559,248 +638,248 @@ public class OtpNode extends OtpLocalNode {
      * references
      */
     public class Mailboxes {
-	// mbox pids here
-	private Hashtable<OtpErlangPid, WeakReference<OtpMbox>> byPid = null;
-	// mbox names here
-	private Hashtable<String, WeakReference<OtpMbox>> byName = null;
-
-	public Mailboxes() {
-	    byPid = new Hashtable<OtpErlangPid, WeakReference<OtpMbox>>(17,
-		    (float) 0.95);
-	    byName = new Hashtable<String, WeakReference<OtpMbox>>(17,
-		    (float) 0.95);
-	}
-
-	public OtpMbox create(final String name) {
-	    OtpMbox m = null;
-
-	    synchronized (byName) {
-		if (get(name) != null) {
-		    return null;
-		}
-		final OtpErlangPid pid = createPid();
-		m = new OtpMbox(OtpNode.this, pid, name);
-		byPid.put(pid, new WeakReference<OtpMbox>(m));
-		byName.put(name, new WeakReference<OtpMbox>(m));
-	    }
-	    return m;
-	}
-
-	public OtpMbox create() {
-	    final OtpErlangPid pid = createPid();
-	    final OtpMbox m = new OtpMbox(OtpNode.this, pid);
-	    byPid.put(pid, new WeakReference<OtpMbox>(m));
-	    return m;
-	}
-
-	public void clear() {
-	    byPid.clear();
-	    byName.clear();
-	}
-
-	public String[] names() {
-	    String allnames[] = null;
-
-	    synchronized (byName) {
-		final int n = byName.size();
-		final Enumeration<String> keys = byName.keys();
-		allnames = new String[n];
-
-		int i = 0;
-		while (keys.hasMoreElements()) {
-		    allnames[i++] = keys.nextElement();
-		}
-	    }
-	    return allnames;
-	}
-
-	public boolean register(final String name, final OtpMbox mbox) {
-	    if (name == null) {
-		if (mbox.name != null) {
-		    byName.remove(mbox.name);
-		    mbox.name = null;
-		}
-	    } else {
-		synchronized (byName) {
-		    if (get(name) != null) {
-			return false;
-		    }
-		    byName.put(name, new WeakReference<OtpMbox>(mbox));
-		    mbox.name = name;
-		}
-	    }
-	    return true;
-	}
-
-	/*
-	 * look up a mailbox based on its name. If the mailbox has gone out of
-	 * scope we also remove the reference from the hashtable so we don't
-	 * find it again.
-	 */
-	public OtpMbox get(final String name) {
-	    final WeakReference<OtpMbox> wr = byName.get(name);
-
-	    if (wr != null) {
-		final OtpMbox m = wr.get();
-
-		if (m != null) {
-		    return m;
-		}
-		byName.remove(name);
-	    }
-	    return null;
-	}
-
-	/*
-	 * look up a mailbox based on its pid. If the mailbox has gone out of
-	 * scope we also remove the reference from the hashtable so we don't
-	 * find it again.
-	 */
-	public OtpMbox get(final OtpErlangPid pid) {
-	    final WeakReference<OtpMbox> wr = byPid.get(pid);
-
-	    if (wr != null) {
-		final OtpMbox m = wr.get();
-
-		if (m != null) {
-		    return m;
-		}
-		byPid.remove(pid);
-	    }
-	    return null;
-	}
-
-	public void remove(final OtpMbox mbox) {
-	    byPid.remove(mbox.self);
-	    if (mbox.name != null) {
-		byName.remove(mbox.name);
-	    }
-	}
+        // mbox pids here
+        private Hashtable<OtpErlangPid, WeakReference<OtpMbox>> byPid = null;
+        // mbox names here
+        private Hashtable<String, WeakReference<OtpMbox>> byName = null;
+
+        public Mailboxes() {
+            byPid = new Hashtable<OtpErlangPid, WeakReference<OtpMbox>>(17,
+                    (float) 0.95);
+            byName = new Hashtable<String, WeakReference<OtpMbox>>(17,
+                    (float) 0.95);
+        }
+
+        public OtpMbox create(final String name) {
+            OtpMbox m = null;
+
+            synchronized (byName) {
+                if (get(name) != null) {
+                    return null;
+                }
+                final OtpErlangPid pid = createPid();
+                m = new OtpMbox(OtpNode.this, pid, name);
+                byPid.put(pid, new WeakReference<OtpMbox>(m));
+                byName.put(name, new WeakReference<OtpMbox>(m));
+            }
+            return m;
+        }
+
+        public OtpMbox create() {
+            final OtpErlangPid pid = createPid();
+            final OtpMbox m = new OtpMbox(OtpNode.this, pid);
+            byPid.put(pid, new WeakReference<OtpMbox>(m));
+            return m;
+        }
+
+        public void clear() {
+            byPid.clear();
+            byName.clear();
+        }
+
+        public String[] names() {
+            String allnames[] = null;
+
+            synchronized (byName) {
+                final int n = byName.size();
+                final Enumeration<String> keys = byName.keys();
+                allnames = new String[n];
+
+                int i = 0;
+                while (keys.hasMoreElements()) {
+                    allnames[i++] = keys.nextElement();
+                }
+            }
+            return allnames;
+        }
+
+        public boolean register(final String name, final OtpMbox mbox) {
+            if (name == null) {
+                if (mbox.name != null) {
+                    byName.remove(mbox.name);
+                    mbox.name = null;
+                }
+            } else {
+                synchronized (byName) {
+                    if (get(name) != null) {
+                        return false;
+                    }
+                    byName.put(name, new WeakReference<OtpMbox>(mbox));
+                    mbox.name = name;
+                }
+            }
+            return true;
+        }
+
+        /*
+         * look up a mailbox based on its name. If the mailbox has gone out of
+         * scope we also remove the reference from the hashtable so we don't
+         * find it again.
+         */
+        public OtpMbox get(final String name) {
+            final WeakReference<OtpMbox> wr = byName.get(name);
+
+            if (wr != null) {
+                final OtpMbox m = wr.get();
+
+                if (m != null) {
+                    return m;
+                }
+                byName.remove(name);
+            }
+            return null;
+        }
+
+        /*
+         * look up a mailbox based on its pid. If the mailbox has gone out of
+         * scope we also remove the reference from the hashtable so we don't
+         * find it again.
+         */
+        public OtpMbox get(final OtpErlangPid pid) {
+            final WeakReference<OtpMbox> wr = byPid.get(pid);
+
+            if (wr != null) {
+                final OtpMbox m = wr.get();
+
+                if (m != null) {
+                    return m;
+                }
+                byPid.remove(pid);
+            }
+            return null;
+        }
+
+        public void remove(final OtpMbox mbox) {
+            byPid.remove(mbox.self);
+            if (mbox.name != null) {
+                byName.remove(mbox.name);
+            }
+        }
     }
 
     /*
      * this thread simply listens for incoming connections
      */
     public class Acceptor extends Thread {
-	private final ServerSocket sock;
-	private final int acceptorPort;
-	private volatile boolean done = false;
-
-	Acceptor(final int port) throws IOException {
-	    sock = new ServerSocket(port);
-	    this.acceptorPort = sock.getLocalPort();
-	    OtpNode.this.port = this.acceptorPort;
-
-	    setDaemon(true);
-	    setName("acceptor");
-	    publishPort();
-	    start();
-	}
-
-	private boolean publishPort() throws IOException {
-	    if (getEpmd() != null) {
-		return false; // already published
-	    }
-	    OtpEpmd.publishPort(OtpNode.this);
-	    return true;
-	}
-
-	private void unPublishPort() {
-	    // unregister with epmd
-	    OtpEpmd.unPublishPort(OtpNode.this);
-
-	    // close the local descriptor (if we have one)
-	    closeSock(epmd);
-	    epmd = null;
-	}
-
-	public void quit() {
-	    unPublishPort();
-	    done = true;
-	    closeSock(sock);
-	    localStatus(node, false, null);
-	}
-
-	private void closeSock(final ServerSocket s) {
-	    try {
-		if (s != null) {
-		    s.close();
-		}
-	    } catch (final Exception e) {
-	    }
-	}
-
-	private void closeSock(final Socket s) {
-	    try {
-		if (s != null) {
-		    s.close();
-		}
-	    } catch (final Exception e) {
-	    }
-	}
-
-	public int port() {
-	    return acceptorPort;
-	}
-
-	@Override
-	public void run() {
-	    Socket newsock = null;
-	    OtpCookedConnection conn = null;
-
-	    localStatus(node, true, null);
-
-	    accept_loop: while (!done) {
-		conn = null;
-
-		try {
-		    newsock = sock.accept();
-		} catch (final Exception e) {
-		    // Problem in java1.2.2: accept throws SocketException
-		    // when socket is closed. This will happen when
-		    // acceptor.quit()
-		    // is called. acceptor.quit() will call localStatus(...), so
-		    // we have to check if that's where we come from.
-		    if (!done) {
-			localStatus(node, false, e);
-		    }
-		    break accept_loop;
-		}
-
-		try {
-		    synchronized (connections) {
-			conn = new OtpCookedConnection(OtpNode.this, newsock);
-			conn.setFlags(connFlags);
-			addConnection(conn);
-		    }
-		} catch (final OtpAuthException e) {
-		    if (conn != null && conn.name != null) {
-			connAttempt(conn.name, true, e);
-		    } else {
-			connAttempt("unknown", true, e);
-		    }
-		    closeSock(newsock);
-		} catch (final IOException e) {
-		    if (conn != null && conn.name != null) {
-			connAttempt(conn.name, true, e);
-		    } else {
-			connAttempt("unknown", true, e);
-		    }
-		    closeSock(newsock);
-		} catch (final Exception e) {
-		    closeSock(newsock);
-		    closeSock(sock);
-		    localStatus(node, false, e);
-		    break accept_loop;
-		}
-	    } // while
-
-	    // if we have exited loop we must do this too
-	    unPublishPort();
-	}
+        private final OtpServerTransport sock;
+        private final int acceptorPort;
+        private volatile boolean done = false;
+
+        Acceptor(final int port) throws IOException {
+            sock = createServerTransport(port);
+            acceptorPort = sock.getLocalPort();
+            OtpNode.this.port = acceptorPort;
+
+            setDaemon(true);
+            setName("acceptor");
+            publishPort();
+            start();
+        }
+
+        private boolean publishPort() throws IOException {
+            if (getEpmd() != null) {
+                return false; // already published
+            }
+            OtpEpmd.publishPort(OtpNode.this);
+            return true;
+        }
+
+        private void unPublishPort() {
+            // unregister with epmd
+            OtpEpmd.unPublishPort(OtpNode.this);
+
+            // close the local descriptor (if we have one)
+            closeSock(epmd);
+            epmd = null;
+        }
+
+        public void quit() {
+            unPublishPort();
+            done = true;
+            closeSock(sock);
+            localStatus(node, false, null);
+        }
+
+        private void closeSock(final OtpServerTransport s) {
+            try {
+                if (s != null) {
+                    s.close();
+                }
+            } catch (final Exception e) {
+            }
+        }
+
+        private void closeSock(final OtpTransport s) {
+            try {
+                if (s != null) {
+                    s.close();
+                }
+            } catch (final Exception e) {
+            }
+        }
+
+        public int port() {
+            return acceptorPort;
+        }
+
+        @Override
+        public void run() {
+            OtpTransport newsock = null;
+            OtpCookedConnection conn = null;
+
+            localStatus(node, true, null);
+
+            accept_loop: while (!done) {
+                conn = null;
+
+                try {
+                    newsock = sock.accept();
+                } catch (final Exception e) {
+                    // Problem in java1.2.2: accept throws SocketException
+                    // when socket is closed. This will happen when
+                    // acceptor.quit()
+                    // is called. acceptor.quit() will call localStatus(...), so
+                    // we have to check if that's where we come from.
+                    if (!done) {
+                        localStatus(node, false, e);
+                    }
+                    break accept_loop;
+                }
+
+                try {
+                    synchronized (connections) {
+                        conn = new OtpCookedConnection(OtpNode.this, newsock);
+                        conn.setFlags(connFlags);
+                        addConnection(conn);
+                    }
+                } catch (final OtpAuthException e) {
+                    if (conn != null && conn.name != null) {
+                        connAttempt(conn.name, true, e);
+                    } else {
+                        connAttempt("unknown", true, e);
+                    }
+                    closeSock(newsock);
+                } catch (final IOException e) {
+                    if (conn != null && conn.name != null) {
+                        connAttempt(conn.name, true, e);
+                    } else {
+                        connAttempt("unknown", true, e);
+                    }
+                    closeSock(newsock);
+                } catch (final Exception e) {
+                    closeSock(newsock);
+                    closeSock(sock);
+                    localStatus(node, false, e);
+                    break accept_loop;
+                }
+            } // while
+
+            // if we have exited loop we must do this too
+            unPublishPort();
+        }
     }
 
     public void setFlags(final int flags) {
-	this.connFlags = flags;
+        connFlags = flags;
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpNodeStatus.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpNodeStatus.java
index aee1f8b67a..889f1d1b1f 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpNodeStatus.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpNodeStatus.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -25,13 +25,13 @@ package com.ericsson.otp.erlang;
  * with your {@link OtpNode OtpNode} when you wish to be notified about such
  * status changes and other similar events.
  * </p>
- * 
+ *
  * <p>
  * This class provides default handers that ignore all events. Applications are
  * expected to extend this class in order to act on events that are deemed
  * interesting.
  * </p>
- * 
+ *
  * <p>
  * <b> Note that this class is likely to change in the near future </b>
  * </p>
@@ -42,59 +42,57 @@ public class OtpNodeStatus {
 
     /**
      * Notify about remote node status changes.
-     * 
+     *
      * @param node
-     *                the node whose status change is being indicated by this
-     *                call.
-     * 
+     *            the node whose status change is being indicated by this call.
+     *
      * @param up
-     *                true if the node has come up, false if it has gone down.
-     * 
+     *            true if the node has come up, false if it has gone down.
+     *
      * @param info
-     *                additional info that may be available, for example an
-     *                exception that was raised causing the event in question
-     *                (may be null).
-     * 
+     *            additional info that may be available, for example an
+     *            exception that was raised causing the event in question (may
+     *            be null).
+     *
      */
     public void remoteStatus(final String node, final boolean up,
-	    final Object info) {
+            final Object info) {
     }
 
     /**
      * Notify about local node exceptions.
-     * 
+     *
      * @param node
-     *                the node whose status change is being indicated by this
-     *                call.
-     * 
+     *            the node whose status change is being indicated by this call.
+     *
      * @param up
-     *                true if the node has come up, false if it has gone down.
-     * 
+     *            true if the node has come up, false if it has gone down.
+     *
      * @param info
-     *                additional info that may be available, for example an
-     *                exception that was raised causing the event in question
-     *                (may be null).
+     *            additional info that may be available, for example an
+     *            exception that was raised causing the event in question (may
+     *            be null).
      */
     public void localStatus(final String node, final boolean up,
-	    final Object info) {
+            final Object info) {
     }
 
     /**
      * Notify about failed connection attempts.
-     * 
+     *
      * @param node
-     *                The name of the remote node
-     * 
+     *            The name of the remote node
+     *
      * @param incoming
-     *                The direction of the connection attempt, i.e. true for
-     *                incoming, false for outgoing.
-     * 
+     *            The direction of the connection attempt, i.e. true for
+     *            incoming, false for outgoing.
+     *
      * @param info
-     *                additional info that may be available, for example an
-     *                exception that was raised causing the event in question
-     *                (may be null).
+     *            additional info that may be available, for example an
+     *            exception that was raised causing the event in question (may
+     *            be null).
      */
     public void connAttempt(final String node, final boolean incoming,
-	    final Object info) {
+            final Object info) {
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpOutputStream.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpOutputStream.java
index ef60a9f38a..2ec583ff5c 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpOutputStream.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpOutputStream.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2013. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -21,6 +21,7 @@ package com.ericsson.otp.erlang;
 // import java.io.OutputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
+import java.io.OutputStream;
 import java.io.UnsupportedEncodingException;
 import java.math.BigDecimal;
 import java.math.BigInteger;
@@ -30,17 +31,20 @@ import java.util.zip.Deflater;
 /**
  * Provides a stream for encoding Erlang terms to external format, for
  * transmission or storage.
- * 
+ *
  * <p>
  * Note that this class is not synchronized, if you need synchronization you
  * must provide it yourself.
- * 
+ *
  */
 public class OtpOutputStream extends ByteArrayOutputStream {
     /** The default initial size of the stream. * */
     public static final int defaultInitialSize = 2048;
 
-    /** The default increment used when growing the stream (increment at least this much). * */
+    /**
+     * The default increment used when growing the stream (increment at least
+     * this much). *
+     */
     public static final int defaultIncrement = 2048;
 
     // static formats, used to encode floats and doubles
@@ -57,66 +61,66 @@ public class OtpOutputStream extends ByteArrayOutputStream {
      * Create a stream with the default initial size (2048 bytes).
      */
     public OtpOutputStream() {
-	this(defaultInitialSize);
+        this(defaultInitialSize);
     }
 
     /**
      * Create a stream with the specified initial size.
      */
     public OtpOutputStream(final int size) {
-	super(size);
+        super(size);
     }
 
     /**
      * Create a stream containing the encoded version of the given Erlang term.
      */
     public OtpOutputStream(final OtpErlangObject o) {
-	this();
-	write_any(o);
+        this();
+        write_any(o);
     }
 
     // package scope
     /*
      * Get the contents of the output stream as an input stream instead. This is
      * used internally in {@link OtpCconnection} for tracing outgoing packages.
-     * 
+     *
      * @param offset where in the output stream to read data from when creating
      * the input stream. The offset is necessary because header contents start 5
      * bytes into the header buffer, whereas payload contents start at the
      * beginning
-     * 
+     *
      * @return an input stream containing the same raw data.
      */
     OtpInputStream getOtpInputStream(final int offset) {
-	return new OtpInputStream(super.buf, offset, super.count - offset, 0);
+        return new OtpInputStream(super.buf, offset, super.count - offset, 0);
     }
 
     /**
      * Get the current position in the stream.
-     * 
+     *
      * @return the current position in the stream.
      */
     public int getPos() {
-	return super.count;
+        return super.count;
     }
 
     /**
      * Trims the capacity of this <tt>OtpOutputStream</tt> instance to be the
-     * buffer's current size.  An application can use this operation to minimize
+     * buffer's current size. An application can use this operation to minimize
      * the storage of an <tt>OtpOutputStream</tt> instance.
      */
     public void trimToSize() {
-	resize(super.count);
+        resize(super.count);
     }
 
-    private void resize(int size) {
-	if (size < super.buf.length) {
-	    final byte[] tmp = new byte[size];
-	    System.arraycopy(super.buf, 0, tmp, 0, size);
-	    super.buf = tmp;
-	} else if (size > super.buf.length) {
-	    ensureCapacity(size);
-	}
+    private void resize(final int size) {
+        if (size < super.buf.length) {
+            final byte[] tmp = new byte[size];
+            System.arraycopy(super.buf, 0, tmp, 0, size);
+            super.buf = tmp;
+        } else if (size > super.buf.length) {
+            ensureCapacity(size);
+        }
     }
 
     /**
@@ -124,228 +128,247 @@ public class OtpOutputStream extends ByteArrayOutputStream {
      * necessary, to ensure that it can hold at least the number of elements
      * specified by the minimum capacity argument.
      *
-     * @param   minCapacity   the desired minimum capacity
+     * @param minCapacity
+     *            the desired minimum capacity
      */
-    public void ensureCapacity(int minCapacity) {
-	if (minCapacity > fixedSize) {
-	    throw new IllegalArgumentException("Trying to increase fixed-size buffer");
-	}
-	int oldCapacity = super.buf.length;
-	if (minCapacity > oldCapacity) {
-	    int newCapacity = (oldCapacity * 3)/2 + 1;
-	    if (newCapacity < oldCapacity + defaultIncrement)
-		newCapacity = oldCapacity + defaultIncrement;
-	    if (newCapacity < minCapacity)
-		newCapacity = minCapacity;
-	    newCapacity = Math.min(fixedSize, newCapacity);
-	    // minCapacity is usually close to size, so this is a win:
-	    final byte[] tmp = new byte[newCapacity];
-	    System.arraycopy(super.buf, 0, tmp, 0, super.count);
-	    super.buf = tmp;
-	}
+    public void ensureCapacity(final int minCapacity) {
+        if (minCapacity > fixedSize) {
+            throw new IllegalArgumentException(
+                    "Trying to increase fixed-size buffer");
+        }
+        final int oldCapacity = super.buf.length;
+        if (minCapacity > oldCapacity) {
+            int newCapacity = oldCapacity * 3 / 2 + 1;
+            if (newCapacity < oldCapacity + defaultIncrement) {
+                newCapacity = oldCapacity + defaultIncrement;
+            }
+            if (newCapacity < minCapacity) {
+                newCapacity = minCapacity;
+            }
+            newCapacity = Math.min(fixedSize, newCapacity);
+            // minCapacity is usually close to size, so this is a win:
+            final byte[] tmp = new byte[newCapacity];
+            System.arraycopy(super.buf, 0, tmp, 0, super.count);
+            super.buf = tmp;
+        }
     }
 
     /**
      * Write one byte to the stream.
-     * 
+     *
      * @param b
      *            the byte to write.
-     * 
+     *
      */
     public void write(final byte b) {
-	ensureCapacity(super.count + 1);
-	super.buf[super.count++] = b;
+        ensureCapacity(super.count + 1);
+        super.buf[super.count++] = b;
     }
 
-    /* (non-Javadoc)
+    /*
+     * (non-Javadoc)
+     * 
      * @see java.io.ByteArrayOutputStream#write(byte[])
      */
     @Override
     public void write(final byte[] abuf) {
-	// don't assume that super.write(byte[]) calls write(buf, 0, buf.length)
-	write(abuf, 0, abuf.length);
+        // don't assume that super.write(byte[]) calls write(buf, 0, buf.length)
+        write(abuf, 0, abuf.length);
     }
 
-    /* (non-Javadoc)
+    /*
+     * (non-Javadoc)
+     * 
      * @see java.io.ByteArrayOutputStream#write(int)
      */
     @Override
-    public synchronized void write(int b) {
-	ensureCapacity(super.count + 1);
-	super.buf[super.count] = (byte) b;
-	count += 1;
+    public synchronized void write(final int b) {
+        ensureCapacity(super.count + 1);
+        super.buf[super.count] = (byte) b;
+        count += 1;
     }
 
-    /* (non-Javadoc)
+    /*
+     * (non-Javadoc)
+     * 
      * @see java.io.ByteArrayOutputStream#write(byte[], int, int)
      */
     @Override
-    public synchronized void write(byte[] b, int off, int len) {
-	if ((off < 0) || (off > b.length) || (len < 0)
-		|| ((off + len) - b.length > 0)) {
-	    throw new IndexOutOfBoundsException();
-	}
-	ensureCapacity(super.count + len);
-	System.arraycopy(b, off, super.buf, super.count, len);
-	super.count += len;
+    public synchronized void write(final byte[] b, final int off, final int len) {
+        if (off < 0 || off > b.length || len < 0 || off + len - b.length > 0) {
+            throw new IndexOutOfBoundsException();
+        }
+        ensureCapacity(super.count + len);
+        System.arraycopy(b, off, super.buf, super.count, len);
+        super.count += len;
+    }
+
+    @Override
+    public synchronized void writeTo(OutputStream out) throws IOException {
+        super.writeTo(out);
+    }
+
+    public synchronized void writeToAndFlush(OutputStream out) throws IOException {
+        super.writeTo(out);
+        out.flush();
     }
 
     /**
      * Write the low byte of a value to the stream.
-     * 
+     *
      * @param n
      *            the value to use.
-     * 
+     *
      */
     public void write1(final long n) {
-	write((byte) (n & 0xff));
+        write((byte) (n & 0xff));
     }
 
     /**
      * Write an array of bytes to the stream.
-     * 
+     *
      * @param bytes
      *            the array of bytes to write.
-     * 
+     *
      */
     public void writeN(final byte[] bytes) {
-	write(bytes);
+        write(bytes);
     }
 
     /**
      * Get the current capacity of the stream. As bytes are added the capacity
      * of the stream is increased automatically, however this method returns the
      * current size.
-     * 
+     *
      * @return the size of the internal buffer used by the stream.
      */
     public int length() {
-	return super.buf.length;
+        return super.buf.length;
     }
 
     /**
      * Get the number of bytes in the stream.
-     * 
+     *
      * @return the number of bytes in the stream.
-     * 
+     *
      * @deprecated As of Jinterface 1.4, replaced by super.size().
      * @see #size()
      */
 
     @Deprecated
     public int count() {
-	return count;
+        return count;
     }
 
     /**
      * Write the low two bytes of a value to the stream in big endian order.
-     * 
+     *
      * @param n
      *            the value to use.
      */
     public void write2BE(final long n) {
-	write((byte) ((n & 0xff00) >> 8));
-	write((byte) (n & 0xff));
+        write((byte) ((n & 0xff00) >> 8));
+        write((byte) (n & 0xff));
     }
 
     /**
      * Write the low four bytes of a value to the stream in big endian order.
-     * 
+     *
      * @param n
      *            the value to use.
      */
     public void write4BE(final long n) {
-	write((byte) ((n & 0xff000000) >> 24));
-	write((byte) ((n & 0xff0000) >> 16));
-	write((byte) ((n & 0xff00) >> 8));
-	write((byte) (n & 0xff));
+        write((byte) ((n & 0xff000000) >> 24));
+        write((byte) ((n & 0xff0000) >> 16));
+        write((byte) ((n & 0xff00) >> 8));
+        write((byte) (n & 0xff));
     }
 
     /**
      * Write the low eight (all) bytes of a value to the stream in big endian
      * order.
-     * 
+     *
      * @param n
      *            the value to use.
      */
     public void write8BE(final long n) {
-	write((byte) (n >> 56 & 0xff));
-	write((byte) (n >> 48 & 0xff));
-	write((byte) (n >> 40 & 0xff));
-	write((byte) (n >> 32 & 0xff));
-	write((byte) (n >> 24 & 0xff));
-	write((byte) (n >> 16 & 0xff));
-	write((byte) (n >> 8 & 0xff));
-	write((byte) (n & 0xff));
+        write((byte) (n >> 56 & 0xff));
+        write((byte) (n >> 48 & 0xff));
+        write((byte) (n >> 40 & 0xff));
+        write((byte) (n >> 32 & 0xff));
+        write((byte) (n >> 24 & 0xff));
+        write((byte) (n >> 16 & 0xff));
+        write((byte) (n >> 8 & 0xff));
+        write((byte) (n & 0xff));
     }
 
     /**
      * Write any number of bytes in little endian format.
-     * 
+     *
      * @param n
      *            the value to use.
      * @param b
      *            the number of bytes to write from the little end.
      */
     public void writeLE(final long n, final int b) {
-    long v = n;
-	for (int i = 0; i < b; i++) {
-        write((byte) (v & 0xff));
-        v >>= 8;
-	}
+        long v = n;
+        for (int i = 0; i < b; i++) {
+            write((byte) (v & 0xff));
+            v >>= 8;
+        }
     }
 
     /**
      * Write the low two bytes of a value to the stream in little endian order.
-     * 
+     *
      * @param n
      *            the value to use.
      */
     public void write2LE(final long n) {
-	write((byte) (n & 0xff));
-	write((byte) ((n & 0xff00) >> 8));
+        write((byte) (n & 0xff));
+        write((byte) ((n & 0xff00) >> 8));
     }
 
     /**
      * Write the low four bytes of a value to the stream in little endian order.
-     * 
+     *
      * @param n
      *            the value to use.
      */
     public void write4LE(final long n) {
-	write((byte) (n & 0xff));
-	write((byte) ((n & 0xff00) >> 8));
-	write((byte) ((n & 0xff0000) >> 16));
-	write((byte) ((n & 0xff000000) >> 24));
+        write((byte) (n & 0xff));
+        write((byte) ((n & 0xff00) >> 8));
+        write((byte) ((n & 0xff0000) >> 16));
+        write((byte) ((n & 0xff000000) >> 24));
     }
 
     /**
      * Write the low eight bytes of a value to the stream in little endian
      * order.
-     * 
+     *
      * @param n
      *            the value to use.
      */
     public void write8LE(final long n) {
-	write((byte) (n & 0xff));
-	write((byte) (n >> 8 & 0xff));
-	write((byte) (n >> 16 & 0xff));
-	write((byte) (n >> 24 & 0xff));
-	write((byte) (n >> 32 & 0xff));
-	write((byte) (n >> 40 & 0xff));
-	write((byte) (n >> 48 & 0xff));
-	write((byte) (n >> 56 & 0xff));
+        write((byte) (n & 0xff));
+        write((byte) (n >> 8 & 0xff));
+        write((byte) (n >> 16 & 0xff));
+        write((byte) (n >> 24 & 0xff));
+        write((byte) (n >> 32 & 0xff));
+        write((byte) (n >> 40 & 0xff));
+        write((byte) (n >> 48 & 0xff));
+        write((byte) (n >> 56 & 0xff));
     }
 
     /**
      * Write the low four bytes of a value to the stream in bif endian order, at
      * the specified position. If the position specified is beyond the end of
      * the stream, this method will have no effect.
-     * 
+     *
      * Normally this method should be used in conjunction with {@link #size()
      * size()}, when is is necessary to insert data into the stream before it is
      * known what the actual value should be. For example:
-     * 
+     *
      * <pre>
      * int pos = s.size();
      *    s.write4BE(0); // make space for length data,
@@ -354,501 +377,495 @@ public class OtpOutputStream extends ByteArrayOutputStream {
      *    // later... when we know the length value
      *    s.poke4BE(pos, length);
      * </pre>
-     * 
-     * 
+     *
+     *
      * @param offset
      *            the position in the stream.
      * @param n
      *            the value to use.
      */
     public void poke4BE(final int offset, final long n) {
-	if (offset < super.count) {
-	    buf[offset + 0] = (byte) ((n & 0xff000000) >> 24);
-	    buf[offset + 1] = (byte) ((n & 0xff0000) >> 16);
-	    buf[offset + 2] = (byte) ((n & 0xff00) >> 8);
-	    buf[offset + 3] = (byte) (n & 0xff);
-	}
+        if (offset < super.count) {
+            buf[offset + 0] = (byte) ((n & 0xff000000) >> 24);
+            buf[offset + 1] = (byte) ((n & 0xff0000) >> 16);
+            buf[offset + 2] = (byte) ((n & 0xff00) >> 8);
+            buf[offset + 3] = (byte) (n & 0xff);
+        }
     }
 
     /**
      * Write a string to the stream as an Erlang atom.
-     * 
+     *
      * @param atom
      *            the string to write.
      */
     public void write_atom(final String atom) {
-	String enc_atom;
-	byte[] bytes;
-	boolean isLatin1 = true;
-
-	if (atom.codePointCount(0, atom.length()) <= OtpExternal.maxAtomLength) {
-	    enc_atom = atom;
-	}
-	else {
-	    /*
-	     * Throwing an exception would be better I think,
-	     * but truncation seems to be the way it has
-	     * been done in other parts of OTP...
-	     */
-	    enc_atom = new String(OtpErlangString.stringToCodePoints(atom),
-				  0, OtpExternal.maxAtomLength);
-	}
-
-	for (int offset = 0; offset < enc_atom.length();) {
-	    final int cp = enc_atom.codePointAt(offset);
-	    if ((cp & ~0xFF) != 0) {
-		isLatin1 = false;
-		break;
-	    }
-	    offset += Character.charCount(cp);
-	}
-	try {
-	    if (isLatin1) {
-		bytes = enc_atom.getBytes("ISO-8859-1");
-		write1(OtpExternal.atomTag);
-		write2BE(bytes.length);
-	    }
-	    else {
-		bytes = enc_atom.getBytes("UTF-8");
-		final int length = bytes.length;
-		if (length < 256) {
-		    write1(OtpExternal.smallAtomUtf8Tag);
-		    write1(length);
-		}
-		else {
-		    write1(OtpExternal.atomUtf8Tag);
-		    write2BE(length);
-		}
-	    }
-	    writeN(bytes);
-	} catch (final java.io.UnsupportedEncodingException e) {
-	    /*
-	     * Sigh, why didn't the API designer add an
-	     * OtpErlangEncodeException to these encoding
-	     * functions?!? Instead of changing the API we
-	     * write an invalid atom and let it fail for
-	     * whoever trying to decode this... Sigh,
-	     * again...
-	     */
-	    write1(OtpExternal.smallAtomUtf8Tag);
-	    write1(2);
-	    write2BE(0xffff); /* Invalid UTF-8 */
-	}
+        String enc_atom;
+        byte[] bytes;
+        boolean isLatin1 = true;
+
+        if (atom.codePointCount(0, atom.length()) <= OtpExternal.maxAtomLength) {
+            enc_atom = atom;
+        } else {
+            /*
+             * Throwing an exception would be better I think, but truncation
+             * seems to be the way it has been done in other parts of OTP...
+             */
+            enc_atom = new String(OtpErlangString.stringToCodePoints(atom), 0,
+                    OtpExternal.maxAtomLength);
+        }
+
+        for (int offset = 0; offset < enc_atom.length();) {
+            final int cp = enc_atom.codePointAt(offset);
+            if ((cp & ~0xFF) != 0) {
+                isLatin1 = false;
+                break;
+            }
+            offset += Character.charCount(cp);
+        }
+        try {
+            if (isLatin1) {
+                bytes = enc_atom.getBytes("ISO-8859-1");
+                write1(OtpExternal.atomTag);
+                write2BE(bytes.length);
+            } else {
+                bytes = enc_atom.getBytes("UTF-8");
+                final int length = bytes.length;
+                if (length < 256) {
+                    write1(OtpExternal.smallAtomUtf8Tag);
+                    write1(length);
+                } else {
+                    write1(OtpExternal.atomUtf8Tag);
+                    write2BE(length);
+                }
+            }
+            writeN(bytes);
+        } catch (final java.io.UnsupportedEncodingException e) {
+            /*
+             * Sigh, why didn't the API designer add an OtpErlangEncodeException
+             * to these encoding functions?!? Instead of changing the API we
+             * write an invalid atom and let it fail for whoever trying to
+             * decode this... Sigh, again...
+             */
+            write1(OtpExternal.smallAtomUtf8Tag);
+            write1(2);
+            write2BE(0xffff); /* Invalid UTF-8 */
+        }
     }
 
     /**
      * Write an array of bytes to the stream as an Erlang binary.
-     * 
+     *
      * @param bin
      *            the array of bytes to write.
      */
     public void write_binary(final byte[] bin) {
-	write1(OtpExternal.binTag);
-	write4BE(bin.length);
-	writeN(bin);
+        write1(OtpExternal.binTag);
+        write4BE(bin.length);
+        writeN(bin);
     }
 
     /**
      * Write an array of bytes to the stream as an Erlang bitstr.
-     * 
+     *
      * @param bin
      *            the array of bytes to write.
      * @param pad_bits
      *            the number of zero pad bits at the low end of the last byte
      */
     public void write_bitstr(final byte[] bin, final int pad_bits) {
-	if (pad_bits == 0) {
-	    write_binary(bin);
-	    return;
-	}
-	write1(OtpExternal.bitBinTag);
-	write4BE(bin.length);
-	write1(8 - pad_bits);
-	writeN(bin);
+        if (pad_bits == 0) {
+            write_binary(bin);
+            return;
+        }
+        write1(OtpExternal.bitBinTag);
+        write4BE(bin.length);
+        write1(8 - pad_bits);
+        writeN(bin);
     }
 
     /**
      * Write a boolean value to the stream as the Erlang atom 'true' or 'false'.
-     * 
+     *
      * @param b
      *            the boolean value to write.
      */
     public void write_boolean(final boolean b) {
-	write_atom(String.valueOf(b));
+        write_atom(String.valueOf(b));
     }
 
     /**
      * Write a single byte to the stream as an Erlang integer. The byte is
      * really an IDL 'octet', that is, unsigned.
-     * 
+     *
      * @param b
      *            the byte to use.
      */
     public void write_byte(final byte b) {
-	this.write_long(b & 0xffL, true);
+        this.write_long(b & 0xffL, true);
     }
 
     /**
      * Write a character to the stream as an Erlang integer. The character may
      * be a 16 bit character, kind of IDL 'wchar'. It is up to the Erlang side
      * to take care of souch, if they should be used.
-     * 
+     *
      * @param c
      *            the character to use.
      */
     public void write_char(final char c) {
-	this.write_long(c & 0xffffL, true);
+        this.write_long(c & 0xffffL, true);
     }
 
     /**
      * Write a double value to the stream.
-     * 
+     *
      * @param d
      *            the double to use.
      */
     public void write_double(final double d) {
-	write1(OtpExternal.newFloatTag);
-	write8BE(Double.doubleToLongBits(d));
+        write1(OtpExternal.newFloatTag);
+        write8BE(Double.doubleToLongBits(d));
     }
 
     /**
      * Write a float value to the stream.
-     * 
+     *
      * @param f
      *            the float to use.
      */
     public void write_float(final float f) {
-	write_double(f);
+        write_double(f);
     }
 
     public void write_big_integer(final BigInteger v) {
-	if (v.bitLength() < 64) {
-	    this.write_long(v.longValue(), true);
-	    return;
-	}
-	final int signum = v.signum();
-    BigInteger val = v;
-	if (signum < 0) {
-        val = val.negate();
-	}
-    final byte[] magnitude = val.toByteArray();
-	final int n = magnitude.length;
-	// Reverse the array to make it little endian.
-	for (int i = 0, j = n; i < j--; i++) {
-	    // Swap [i] with [j]
-	    final byte b = magnitude[i];
-	    magnitude[i] = magnitude[j];
-	    magnitude[j] = b;
-	}
-	if ((n & 0xFF) == n) {
-	    write1(OtpExternal.smallBigTag);
-	    write1(n); // length
-	} else {
-	    write1(OtpExternal.largeBigTag);
-	    write4BE(n); // length
-	}
-	write1(signum < 0 ? 1 : 0); // sign
-	// Write the array
-	writeN(magnitude);
+        if (v.bitLength() < 64) {
+            this.write_long(v.longValue(), true);
+            return;
+        }
+        final int signum = v.signum();
+        BigInteger val = v;
+        if (signum < 0) {
+            val = val.negate();
+        }
+        final byte[] magnitude = val.toByteArray();
+        final int n = magnitude.length;
+        // Reverse the array to make it little endian.
+        for (int i = 0, j = n; i < j--; i++) {
+            // Swap [i] with [j]
+            final byte b = magnitude[i];
+            magnitude[i] = magnitude[j];
+            magnitude[j] = b;
+        }
+        if ((n & 0xFF) == n) {
+            write1(OtpExternal.smallBigTag);
+            write1(n); // length
+        } else {
+            write1(OtpExternal.largeBigTag);
+            write4BE(n); // length
+        }
+        write1(signum < 0 ? 1 : 0); // sign
+        // Write the array
+        writeN(magnitude);
     }
 
     void write_long(final long v, final boolean unsigned) {
-	/*
-	 * If v<0 and unsigned==true the value
-	 * java.lang.Long.MAX_VALUE-java.lang.Long.MIN_VALUE+1+v is written, i.e
-	 * v is regarded as unsigned two's complement.
-	 */
-	if ((v & 0xffL) == v) {
-	    // will fit in one byte
-	    write1(OtpExternal.smallIntTag);
-	    write1(v);
-	} else {
-	    // note that v != 0L
-	    if (v < 0 && unsigned || v < OtpExternal.erlMin
-		    || v > OtpExternal.erlMax) {
-		// some kind of bignum
-		final long abs = unsigned ? v : v < 0 ? -v : v;
-		final int sign = unsigned ? 0 : v < 0 ? 1 : 0;
-		int n;
-		long mask;
-		for (mask = 0xFFFFffffL, n = 4; (abs & mask) != abs; n++, mask = mask << 8 | 0xffL) {
-            // count nonzero bytes
-		}
-		write1(OtpExternal.smallBigTag);
-		write1(n); // length
-		write1(sign); // sign
-		writeLE(abs, n); // value. obs! little endian
-	    } else {
-		write1(OtpExternal.intTag);
-		write4BE(v);
-	    }
-	}
+        /*
+         * If v<0 and unsigned==true the value
+         * java.lang.Long.MAX_VALUE-java.lang.Long.MIN_VALUE+1+v is written, i.e
+         * v is regarded as unsigned two's complement.
+         */
+        if ((v & 0xffL) == v) {
+            // will fit in one byte
+            write1(OtpExternal.smallIntTag);
+            write1(v);
+        } else {
+            // note that v != 0L
+            if (v < 0 && unsigned || v < OtpExternal.erlMin
+                    || v > OtpExternal.erlMax) {
+                // some kind of bignum
+                final long abs = unsigned ? v : v < 0 ? -v : v;
+                final int sign = unsigned ? 0 : v < 0 ? 1 : 0;
+                int n;
+                long mask;
+                for (mask = 0xFFFFffffL, n = 4; (abs & mask) != abs; n++, mask = mask << 8 | 0xffL) {
+                    // count nonzero bytes
+                }
+                write1(OtpExternal.smallBigTag);
+                write1(n); // length
+                write1(sign); // sign
+                writeLE(abs, n); // value. obs! little endian
+            } else {
+                write1(OtpExternal.intTag);
+                write4BE(v);
+            }
+        }
     }
 
     /**
      * Write a long to the stream.
-     * 
+     *
      * @param l
      *            the long to use.
      */
     public void write_long(final long l) {
-	this.write_long(l, false);
+        this.write_long(l, false);
     }
 
     /**
      * Write a positive long to the stream. The long is interpreted as a two's
      * complement unsigned long even if it is negative.
-     * 
+     *
      * @param ul
      *            the long to use.
      */
     public void write_ulong(final long ul) {
-	this.write_long(ul, true);
+        this.write_long(ul, true);
     }
 
     /**
      * Write an integer to the stream.
-     * 
+     *
      * @param i
      *            the integer to use.
      */
     public void write_int(final int i) {
-	this.write_long(i, false);
+        this.write_long(i, false);
     }
 
     /**
      * Write a positive integer to the stream. The integer is interpreted as a
      * two's complement unsigned integer even if it is negative.
-     * 
+     *
      * @param ui
      *            the integer to use.
      */
     public void write_uint(final int ui) {
-	this.write_long(ui & 0xFFFFffffL, true);
+        this.write_long(ui & 0xFFFFffffL, true);
     }
 
     /**
      * Write a short to the stream.
-     * 
+     *
      * @param s
      *            the short to use.
      */
     public void write_short(final short s) {
-	this.write_long(s, false);
+        this.write_long(s, false);
     }
 
     /**
      * Write a positive short to the stream. The short is interpreted as a two's
      * complement unsigned short even if it is negative.
-     * 
+     *
      * @param us
      *            the short to use.
      */
     public void write_ushort(final short us) {
-	this.write_long(us & 0xffffL, true);
+        this.write_long(us & 0xffffL, true);
     }
 
     /**
      * Write an Erlang list header to the stream. After calling this method, you
      * must write 'arity' elements to the stream followed by nil, or it will not
      * be possible to decode it later.
-     * 
+     *
      * @param arity
      *            the number of elements in the list.
      */
     public void write_list_head(final int arity) {
-	if (arity == 0) {
-	    write_nil();
-	} else {
-	    write1(OtpExternal.listTag);
-	    write4BE(arity);
-	}
+        if (arity == 0) {
+            write_nil();
+        } else {
+            write1(OtpExternal.listTag);
+            write4BE(arity);
+        }
     }
 
     /**
      * Write an empty Erlang list to the stream.
      */
     public void write_nil() {
-	write1(OtpExternal.nilTag);
+        write1(OtpExternal.nilTag);
     }
 
     /**
      * Write an Erlang tuple header to the stream. After calling this method,
      * you must write 'arity' elements to the stream or it will not be possible
      * to decode it later.
-     * 
+     *
      * @param arity
      *            the number of elements in the tuple.
      */
     public void write_tuple_head(final int arity) {
-	if (arity < 0xff) {
-	    write1(OtpExternal.smallTupleTag);
-	    write1(arity);
-	} else {
-	    write1(OtpExternal.largeTupleTag);
-	    write4BE(arity);
-	}
+        if (arity < 0xff) {
+            write1(OtpExternal.smallTupleTag);
+            write1(arity);
+        } else {
+            write1(OtpExternal.largeTupleTag);
+            write4BE(arity);
+        }
     }
 
     /**
      * Write an Erlang PID to the stream.
-     * 
+     *
      * @param node
      *            the nodename.
-     * 
+     *
      * @param id
      *            an arbitrary number. Only the low order 15 bits will be used.
-     * 
+     *
      * @param serial
      *            another arbitrary number. Only the low order 13 bits will be
      *            used.
-     * 
+     *
      * @param creation
      *            yet another arbitrary number. Only the low order 2 bits will
      *            be used.
-     * 
+     *
      */
     public void write_pid(final String node, final int id, final int serial,
-	    final int creation) {
-	write1(OtpExternal.pidTag);
-	write_atom(node);
-	write4BE(id & 0x7fff); // 15 bits
-	write4BE(serial & 0x1fff); // 13 bits
-	write1(creation & 0x3); // 2 bits
+            final int creation) {
+        write1(OtpExternal.pidTag);
+        write_atom(node);
+        write4BE(id & 0x7fff); // 15 bits
+        write4BE(serial & 0x1fff); // 13 bits
+        write1(creation & 0x3); // 2 bits
     }
 
     /**
      * Write an Erlang port to the stream.
-     * 
+     *
      * @param node
      *            the nodename.
-     * 
+     *
      * @param id
      *            an arbitrary number. Only the low order 28 bits will be used.
-     * 
+     *
      * @param creation
      *            another arbitrary number. Only the low order 2 bits will be
      *            used.
-     * 
+     *
      */
     public void write_port(final String node, final int id, final int creation) {
-	write1(OtpExternal.portTag);
-	write_atom(node);
-	write4BE(id & 0xfffffff); // 28 bits
-	write1(creation & 0x3); // 2 bits
+        write1(OtpExternal.portTag);
+        write_atom(node);
+        write4BE(id & 0xfffffff); // 28 bits
+        write1(creation & 0x3); // 2 bits
     }
 
     /**
      * Write an old style Erlang ref to the stream.
-     * 
+     *
      * @param node
      *            the nodename.
-     * 
+     *
      * @param id
      *            an arbitrary number. Only the low order 18 bits will be used.
-     * 
+     *
      * @param creation
      *            another arbitrary number. Only the low order 2 bits will be
      *            used.
-     * 
+     *
      */
     public void write_ref(final String node, final int id, final int creation) {
-	write1(OtpExternal.refTag);
-	write_atom(node);
-	write4BE(id & 0x3ffff); // 18 bits
-	write1(creation & 0x3); // 2 bits
+        write1(OtpExternal.refTag);
+        write_atom(node);
+        write4BE(id & 0x3ffff); // 18 bits
+        write1(creation & 0x3); // 2 bits
     }
 
     /**
      * Write a new style (R6 and later) Erlang ref to the stream.
-     * 
+     *
      * @param node
      *            the nodename.
-     * 
+     *
      * @param ids
      *            an array of arbitrary numbers. Only the low order 18 bits of
      *            the first number will be used. If the array contains only one
      *            number, an old style ref will be written instead. At most
      *            three numbers will be read from the array.
-     * 
+     *
      * @param creation
      *            another arbitrary number. Only the low order 2 bits will be
      *            used.
-     * 
+     *
      */
     public void write_ref(final String node, final int[] ids, final int creation) {
-	int arity = ids.length;
-	if (arity > 3) {
-	    arity = 3; // max 3 words in ref
-	}
+        int arity = ids.length;
+        if (arity > 3) {
+            arity = 3; // max 3 words in ref
+        }
 
-	if (arity == 1) {
-	    // use old method
-	    this.write_ref(node, ids[0], creation);
-	} else {
-	    // r6 ref
-	    write1(OtpExternal.newRefTag);
+        if (arity == 1) {
+            // use old method
+            this.write_ref(node, ids[0], creation);
+        } else {
+            // r6 ref
+            write1(OtpExternal.newRefTag);
 
-	    // how many id values
-	    write2BE(arity);
+            // how many id values
+            write2BE(arity);
 
-	    write_atom(node);
+            write_atom(node);
 
-	    // note: creation BEFORE id in r6 ref
-	    write1(creation & 0x3); // 2 bits
+            // note: creation BEFORE id in r6 ref
+            write1(creation & 0x3); // 2 bits
 
-	    // first int gets truncated to 18 bits
-	    write4BE(ids[0] & 0x3ffff);
+            // first int gets truncated to 18 bits
+            write4BE(ids[0] & 0x3ffff);
 
-	    // remaining ones are left as is
-	    for (int i = 1; i < arity; i++) {
-		write4BE(ids[i]);
-	    }
-	}
+            // remaining ones are left as is
+            for (int i = 1; i < arity; i++) {
+                write4BE(ids[i]);
+            }
+        }
     }
 
     /**
      * Write a string to the stream.
-     * 
+     *
      * @param s
      *            the string to write.
      */
     public void write_string(final String s) {
-	final int len = s.length();
-
-	switch (len) {
-	case 0:
-	    write_nil();
-	    break;
-	default:
-	    if (len <= 65535 && is8bitString(s)) { // 8-bit string
-		try {
-		    final byte[] bytebuf = s.getBytes("ISO-8859-1");
-		    write1(OtpExternal.stringTag);
-		    write2BE(len);
-		    writeN(bytebuf);
-		} catch (final UnsupportedEncodingException e) {
-		    write_nil(); // it should never ever get here...
-		}
-	    } else { // unicode or longer, must code as list
-		final int[] codePoints = OtpErlangString.stringToCodePoints(s);
-		write_list_head(codePoints.length);
-		for (final int codePoint : codePoints) {
-		    write_int(codePoint);
-		}
-		write_nil();
-	    }
-	}
+        final int len = s.length();
+
+        switch (len) {
+        case 0:
+            write_nil();
+            break;
+        default:
+            if (len <= 65535 && is8bitString(s)) { // 8-bit string
+                try {
+                    final byte[] bytebuf = s.getBytes("ISO-8859-1");
+                    write1(OtpExternal.stringTag);
+                    write2BE(len);
+                    writeN(bytebuf);
+                } catch (final UnsupportedEncodingException e) {
+                    write_nil(); // it should never ever get here...
+                }
+            } else { // unicode or longer, must code as list
+                final int[] codePoints = OtpErlangString.stringToCodePoints(s);
+                write_list_head(codePoints.length);
+                for (final int codePoint : codePoints) {
+                    write_int(codePoint);
+                }
+                write_nil();
+            }
+        }
     }
 
     private boolean is8bitString(final String s) {
-	for (int i = 0; i < s.length(); ++i) {
-	    final char c = s.charAt(i);
-	    if (c < 0 || c > 255) {
-		return false;
-	    }
-	}
-	return true;
+        for (int i = 0; i < s.length(); ++i) {
+            final char c = s.charAt(i);
+            if (c < 0 || c > 255) {
+                return false;
+            }
+        }
+        return true;
     }
 
     /**
@@ -858,7 +875,7 @@ public class OtpOutputStream extends ByteArrayOutputStream {
      *            the Erlang term to write.
      */
     public void write_compressed(final OtpErlangObject o) {
-	write_compressed(o, Deflater.DEFAULT_COMPRESSION);
+        write_compressed(o, Deflater.DEFAULT_COMPRESSION);
     }
 
     /**
@@ -869,119 +886,119 @@ public class OtpOutputStream extends ByteArrayOutputStream {
      * @param level
      *            the compression level (<tt>0..9</tt>)
      */
-    public void write_compressed(final OtpErlangObject o, int level) {
-    @SuppressWarnings("resource")
-	final OtpOutputStream oos = new OtpOutputStream(o);
-	/*
-	 * similar to erts_term_to_binary() in external.c:
-	 * We don't want to compress if compression actually increases the size.
-	 * Since compression uses 5 extra bytes (COMPRESSED tag + size), don't
-	 * compress if the original term is smaller.
-	 */
-	if (oos.size() < 5) {
-	    // fast path for small terms
-	    try {
-		oos.writeTo(this);
-		// if the term is written as a compressed term, the output
-		// stream is closed, so we do this here, too
-		this.close();
-	    } catch (IOException e) {
-		throw new java.lang.IllegalArgumentException(
-			"Intermediate stream failed for Erlang object " + o);
-	    }
-	} else {
-	    int startCount = super.count;
-	    // we need destCount bytes for an uncompressed term
-	    // -> if compression uses more, use the uncompressed term!
-	    int destCount = startCount + oos.size();
-	    this.fixedSize = destCount;
-	    Deflater def = new Deflater(level);
-	    final java.util.zip.DeflaterOutputStream dos = new java.util.zip.DeflaterOutputStream(
-		    this, def);
-	    try {
-		write1(OtpExternal.compressedTag);
-		write4BE(oos.size());
-		oos.writeTo(dos);
-		dos.close(); // note: closes this, too!
-	    } catch (final IllegalArgumentException e) {
-		// discard further un-compressed data
-		// -> if not called, there may be memory leaks!
-		def.end();
-		// could not make the value smaller than originally
-		// -> reset to starting count, write uncompressed
-		super.count = startCount;
-		try {
-		    oos.writeTo(this);
-		    // if the term is written as a compressed term, the output
-		    // stream is closed, so we do this here, too
-		    this.close();
-		} catch (IOException e2) {
-		    throw new java.lang.IllegalArgumentException(
-			    "Intermediate stream failed for Erlang object " + o);
-		}
-	    } catch (final IOException e) {
-		throw new java.lang.IllegalArgumentException(
-			"Intermediate stream failed for Erlang object " + o);
-	    } finally {
-		this.fixedSize = Integer.MAX_VALUE;
-        try {
-            dos.close();
-        } catch (IOException e) {
-            // ignore
+    public void write_compressed(final OtpErlangObject o, final int level) {
+        @SuppressWarnings("resource")
+        final OtpOutputStream oos = new OtpOutputStream(o);
+        /*
+         * similar to erts_term_to_binary() in external.c: We don't want to
+         * compress if compression actually increases the size. Since
+         * compression uses 5 extra bytes (COMPRESSED tag + size), don't
+         * compress if the original term is smaller.
+         */
+        if (oos.size() < 5) {
+            // fast path for small terms
+            try {
+                oos.writeToAndFlush(this);
+                // if the term is written as a compressed term, the output
+                // stream is closed, so we do this here, too
+                close();
+            } catch (final IOException e) {
+                throw new java.lang.IllegalArgumentException(
+                        "Intermediate stream failed for Erlang object " + o);
+            }
+        } else {
+            final int startCount = super.count;
+            // we need destCount bytes for an uncompressed term
+            // -> if compression uses more, use the uncompressed term!
+            final int destCount = startCount + oos.size();
+            fixedSize = destCount;
+            final Deflater def = new Deflater(level);
+            final java.util.zip.DeflaterOutputStream dos = new java.util.zip.DeflaterOutputStream(
+                    this, def);
+            try {
+                write1(OtpExternal.compressedTag);
+                write4BE(oos.size());
+                oos.writeTo(dos);
+                dos.close(); // note: closes this, too!
+            } catch (final IllegalArgumentException e) {
+                // discard further un-compressed data
+                // -> if not called, there may be memory leaks!
+                def.end();
+                // could not make the value smaller than originally
+                // -> reset to starting count, write uncompressed
+                super.count = startCount;
+                try {
+                    oos.writeTo(this);
+                    // if the term is written as a compressed term, the output
+                    // stream is closed, so we do this here, too
+                    close();
+                } catch (final IOException e2) {
+                    throw new java.lang.IllegalArgumentException(
+                            "Intermediate stream failed for Erlang object " + o);
+                }
+            } catch (final IOException e) {
+                throw new java.lang.IllegalArgumentException(
+                        "Intermediate stream failed for Erlang object " + o);
+            } finally {
+                fixedSize = Integer.MAX_VALUE;
+                try {
+                    dos.close();
+                } catch (final IOException e) {
+                    // ignore
+                }
+            }
         }
-	    }
-	}
     }
 
     /**
      * Write an arbitrary Erlang term to the stream.
-     * 
+     *
      * @param o
      *            the Erlang term to write.
      */
     public void write_any(final OtpErlangObject o) {
-	// calls one of the above functions, depending on o
-	o.encode(this);
+        // calls one of the above functions, depending on o
+        o.encode(this);
     }
 
     public void write_fun(final OtpErlangPid pid, final String module,
-	    final long old_index, final int arity, final byte[] md5,
-	    final long index, final long uniq, final OtpErlangObject[] freeVars) {
-	if (arity == -1) {
-	    write1(OtpExternal.funTag);
-	    write4BE(freeVars.length);
-	    pid.encode(this);
-	    write_atom(module);
-	    write_long(index);
-	    write_long(uniq);
-	    for (final OtpErlangObject fv : freeVars) {
-		fv.encode(this);
-	    }
-	} else {
-	    write1(OtpExternal.newFunTag);
-	    final int saveSizePos = getPos();
-	    write4BE(0); // this is where we patch in the size
-	    write1(arity);
-	    writeN(md5);
-	    write4BE(index);
-	    write4BE(freeVars.length);
-	    write_atom(module);
-	    write_long(old_index);
-	    write_long(uniq);
-	    pid.encode(this);
-	    for (final OtpErlangObject fv : freeVars) {
-		fv.encode(this);
-	    }
-	    poke4BE(saveSizePos, getPos() - saveSizePos);
-	}
+            final long old_index, final int arity, final byte[] md5,
+            final long index, final long uniq, final OtpErlangObject[] freeVars) {
+        if (arity == -1) {
+            write1(OtpExternal.funTag);
+            write4BE(freeVars.length);
+            pid.encode(this);
+            write_atom(module);
+            write_long(index);
+            write_long(uniq);
+            for (final OtpErlangObject fv : freeVars) {
+                fv.encode(this);
+            }
+        } else {
+            write1(OtpExternal.newFunTag);
+            final int saveSizePos = getPos();
+            write4BE(0); // this is where we patch in the size
+            write1(arity);
+            writeN(md5);
+            write4BE(index);
+            write4BE(freeVars.length);
+            write_atom(module);
+            write_long(old_index);
+            write_long(uniq);
+            pid.encode(this);
+            for (final OtpErlangObject fv : freeVars) {
+                fv.encode(this);
+            }
+            poke4BE(saveSizePos, getPos() - saveSizePos);
+        }
     }
 
     public void write_external_fun(final String module, final String function,
-	    final int arity) {
-	write1(OtpExternal.externalFunTag);
-	write_atom(module);
-	write_atom(function);
-	write_long(arity);
+            final int arity) {
+        write1(OtpExternal.externalFunTag);
+        write_atom(module);
+        write_atom(function);
+        write_long(arity);
     }
 
     public void write_map_head(final int arity) {
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpPeer.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpPeer.java
index df5ce61820..cb09b40f47 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpPeer.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpPeer.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -28,59 +28,72 @@ import java.net.UnknownHostException;
  */
 public class OtpPeer extends AbstractNode {
     int distChoose = 0; /*
-     * this is set by OtpConnection and is the highest
-     * common protocol version we both support
-     */
+                         * this is set by OtpConnection and is the highest
+                         * common protocol version we both support
+                         */
 
-    OtpPeer() {
-	super();
+    OtpPeer(final OtpTransportFactory transportFactory) {
+        super(transportFactory);
     }
 
     /**
      * Create a peer node.
-     * 
+     *
      * @param node
-     *                the name of the node.
+     *            the name of the node.
      */
     public OtpPeer(final String node) {
-	super(node);
+        super(node);
+    }
+
+    /**
+     * Create a peer node with custom transport factory.
+     *
+     * @param node
+     *            the name of the node.
+     * @param transportFactory
+     *            custom transport factory
+     */
+    public OtpPeer(final String node, final OtpTransportFactory
+            transportFactory) {
+        super(node, transportFactory);
     }
 
     /**
      * Create a connection to a remote node.
-     * 
+     *
      * @param self
-     *                the local node from which you wish to connect.
-     * 
+     *            the local node from which you wish to connect.
+     *
      * @return a connection to the remote node.
-     * 
+     *
      * @exception java.net.UnknownHostException
-     *                    if the remote host could not be found.
-     * 
+     *                if the remote host could not be found.
+     *
      * @exception java.io.IOException
-     *                    if it was not possible to connect to the remote node.
-     * 
+     *                if it was not possible to connect to the remote node.
+     *
      * @exception OtpAuthException
-     *                    if the connection was refused by the remote node.
-     * 
+     *                if the connection was refused by the remote node.
+     *
      * @deprecated Use the corresponding method in {@link OtpSelf} instead.
      */
     @Deprecated
     public OtpConnection connect(final OtpSelf self) throws IOException,
-	    UnknownHostException, OtpAuthException {
-	return new OtpConnection(self, this);
+            UnknownHostException, OtpAuthException {
+        return new OtpConnection(self, this);
     }
 
     // package
     /*
      * Get the port number used by the remote node.
-     * 
+     *
      * @return the port number used by the remote node, or 0 if the node was not
      * registered with the port mapper.
-     * 
+     *
      * @exception java.io.IOException if the port mapper could not be contacted.
      */
     int port() throws IOException {
-	return OtpEpmd.lookupPort(this);
+        return OtpEpmd.lookupPort(this);
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpSelf.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpSelf.java
index 8e78cda894..74afbbcca6 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpSelf.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpSelf.java
@@ -1,54 +1,52 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
 
 import java.io.IOException;
-import java.net.ServerSocket;
-import java.net.Socket;
 import java.net.UnknownHostException;
 
 /**
  * Represents an OTP node. It is used to connect to remote nodes or accept
  * incoming connections from remote nodes.
- * 
+ *
  * <p>
  * When the Java node will be connecting to a remote Erlang, Java or C node, it
  * must first identify itself as a node by creating an instance of this class,
  * after which it may connect to the remote node.
- * 
+ *
  * <p>
  * When you create an instance of this class, it will bind a socket to a port so
  * that incoming connections can be accepted. However the port number will not
  * be made available to other nodes wishing to connect until you explicitely
  * register with the port mapper daemon by calling {@link #publishPort()}.
  * </p>
- * 
+ *
  * <pre>
  * OtpSelf self = new OtpSelf(&quot;client&quot;, &quot;authcookie&quot;); // identify self
  * OtpPeer other = new OtpPeer(&quot;server&quot;); // identify peer
- * 
+ *
  * OtpConnection conn = self.connect(other); // connect to peer
  * </pre>
- * 
+ *
  */
 public class OtpSelf extends OtpLocalNode {
-    private final ServerSocket sock;
+    private final OtpServerTransport sock;
     private final OtpErlangPid pid;
 
     /**
@@ -58,47 +56,154 @@ public class OtpSelf extends OtpLocalNode {
      * directory. The home directory is obtained from the System property
      * "user.home".
      * </p>
-     * 
+     *
      * <p>
      * If the file does not exist, an empty string is used. This method makes no
      * attempt to create the file.
      * </p>
-     * 
+     *
      * @param node
-     *                the name of this node.
-     * 
+     *            the name of this node.
+     *
+     * @exception IOException
+     *                in case of server transport failure
+     *
      */
     public OtpSelf(final String node) throws IOException {
-	this(node, defaultCookie, 0);
+        this(node, defaultCookie, 0);
+    }
+
+    /**
+     * <p>
+     * Create a self node using the default cookie and custom transport factory.
+     * The default cookie is found by reading the first line of the
+     * .erlang.cookie file in the user's home directory. The home directory is
+     * obtained from the System property "user.home".
+     * </p>
+     *
+     * <p>
+     * If the file does not exist, an empty string is used. This method makes no
+     * attempt to create the file.
+     * </p>
+     *
+     * @param node
+     *            the name of this node.
+     *
+     * @param transportFactory
+     *            the transport factory to use when creating connections.
+     *
+     * @exception IOException
+     *                in case of server transport failure
+     *
+     */
+    public OtpSelf(final String node,
+            final OtpTransportFactory transportFactory) throws IOException {
+        this(node, defaultCookie, 0, transportFactory);
     }
 
     /**
      * Create a self node.
-     * 
+     *
      * @param node
-     *                the name of this node.
-     * 
+     *            the name of this node.
+     *
      * @param cookie
-     *                the authorization cookie that will be used by this node
-     *                when it communicates with other nodes.
+     *            the authorization cookie that will be used by this node when
+     *            it communicates with other nodes.
+     *
+     * @exception IOException
+     *                in case of server transport failure
      */
     public OtpSelf(final String node, final String cookie) throws IOException {
-	this(node, cookie, 0);
+        this(node, cookie, 0);
+    }
+
+    /**
+     * Create a self node.
+     *
+     * @param node
+     *            the name of this node.
+     *
+     * @param cookie
+     *            the authorization cookie that will be used by this node when
+     *            it communicates with other nodes.
+     *
+     * @param transportFactory
+     *            the transport factory to use when creating connections.
+     *
+     * @exception IOException
+     *                in case of server transport failure
+     */
+    public OtpSelf(final String node, final String cookie,
+            final OtpTransportFactory transportFactory) throws IOException {
+        this(node, cookie, 0, transportFactory);
     }
 
+    /**
+     * Create a self node.
+     *
+     * @param node
+     *            the name of this node.
+     *
+     * @param cookie
+     *            the authorization cookie that will be used by this node when
+     *            it communicates with other nodes.
+     *
+     * @param port
+     *            the port number you wish to use for incoming connections.
+     *            Specifying 0 lets the system choose an available port.
+     *
+     * @exception IOException
+     *                in case of server transport failure
+     */
     public OtpSelf(final String node, final String cookie, final int port)
-	    throws IOException {
-	super(node, cookie);
+            throws IOException {
+        super(node, cookie);
 
-	sock = new ServerSocket(port);
+        sock = createServerTransport(port);
 
-	if (port != 0) {
-	    this.port = port;
-	} else {
-	    this.port = sock.getLocalPort();
-	}
+        if (port != 0) {
+            this.port = port;
+        } else {
+            this.port = sock.getLocalPort();
+        }
 
-	pid = createPid();
+        pid = createPid();
+    }
+
+    /**
+     * Create a self node.
+     *
+     * @param node
+     *            the name of this node.
+     *
+     * @param cookie
+     *            the authorization cookie that will be used by this node when
+     *            it communicates with other nodes.
+     *
+     * @param port
+     *            the port number you wish to use for incoming connections.
+     *            Specifying 0 lets the system choose an available port.
+     *
+     * @param transportFactory
+     *            the transport factory to use when creating connections.
+     *
+     * @exception IOException
+     *                in case of server transport failure
+     */
+    public OtpSelf(final String node, final String cookie, final int port,
+            final OtpTransportFactory transportFactory) throws IOException {
+        super(node, cookie, transportFactory);
+
+        sock = createServerTransport(port);
+
+        if (port != 0) {
+            this.port = port;
+        } else {
+            this.port = sock.getLocalPort();
+        }
+
+        pid = createPid();
     }
 
     /**
@@ -106,12 +211,12 @@ public class OtpSelf extends OtpLocalNode {
      * messages sent by this node. Anonymous messages are those sent via send
      * methods in {@link OtpConnection OtpConnection} that do not specify a
      * sender.
-     * 
+     *
      * @return the Erlang PID that will be used as the sender id in all
      *         anonymous messages sent by this node.
      */
     public OtpErlangPid pid() {
-	return pid;
+        return pid;
     }
 
     /**
@@ -119,31 +224,31 @@ public class OtpSelf extends OtpLocalNode {
      * connect to this one. This method establishes a connection to the Erlang
      * port mapper (Epmd) and registers the server node's name and port so that
      * remote nodes are able to connect.
-     * 
+     *
      * <p>
      * This method will fail if an Epmd process is not running on the localhost.
      * See the Erlang documentation for information about starting Epmd.
-     * 
+     *
      * <p>
      * Note that once this method has been called, the node is expected to be
      * available to accept incoming connections. For that reason you should make
      * sure that you call {@link #accept()} shortly after calling
      * {@link #publishPort()}. When you no longer intend to accept connections
      * you should call {@link #unPublishPort()}.
-     * 
+     *
      * @return true if the operation was successful, false if the node was
      *         already registered.
-     * 
+     *
      * @exception java.io.IOException
-     *                    if the port mapper could not be contacted.
+     *                if the port mapper could not be contacted.
      */
     public boolean publishPort() throws IOException {
-	if (getEpmd() != null) {
-	    return false; // already published
-	}
+        if (getEpmd() != null) {
+            return false; // already published
+        }
 
-	OtpEpmd.publishPort(this);
-	return getEpmd() != null;
+        OtpEpmd.publishPort(this);
+        return getEpmd() != null;
     }
 
     /**
@@ -151,71 +256,71 @@ public class OtpSelf extends OtpLocalNode {
      * mapper, thus preventing any new connections from remote nodes.
      */
     public void unPublishPort() {
-	// unregister with epmd
-	OtpEpmd.unPublishPort(this);
-
-	// close the local descriptor (if we have one)
-	try {
-	    if (super.epmd != null) {
-		super.epmd.close();
-	    }
-	} catch (final IOException e) {/* ignore close errors */
-	}
-	super.epmd = null;
+        // unregister with epmd
+        OtpEpmd.unPublishPort(this);
+
+        // close the local descriptor (if we have one)
+        try {
+            if (super.epmd != null) {
+                super.epmd.close();
+            }
+        } catch (final IOException e) {/* ignore close errors */
+        }
+        super.epmd = null;
     }
 
     /**
      * Accept an incoming connection from a remote node. A call to this method
      * will block until an incoming connection is at least attempted.
-     * 
+     *
      * @return a connection to a remote node.
-     * 
+     *
      * @exception java.io.IOException
-     *                    if a remote node attempted to connect but no common
-     *                    protocol was found.
-     * 
+     *                if a remote node attempted to connect but no common
+     *                protocol was found.
+     *
      * @exception OtpAuthException
-     *                    if a remote node attempted to connect, but was not
-     *                    authorized to connect.
+     *                if a remote node attempted to connect, but was not
+     *                authorized to connect.
      */
     public OtpConnection accept() throws IOException, OtpAuthException {
-	Socket newsock = null;
-
-	while (true) {
-	    try {
-		newsock = sock.accept();
-		return new OtpConnection(this, newsock);
-	    } catch (final IOException e) {
-		try {
-		    if (newsock != null) {
-			newsock.close();
-		    }
-		} catch (final IOException f) {/* ignore close errors */
-		}
-		throw e;
-	    }
-	}
+        OtpTransport newsock = null;
+
+        while (true) {
+            try {
+                newsock = sock.accept();
+                return new OtpConnection(this, newsock);
+            } catch (final IOException e) {
+                try {
+                    if (newsock != null) {
+                        newsock.close();
+                    }
+                } catch (final IOException f) {/* ignore close errors */
+                }
+                throw e;
+            }
+        }
     }
 
     /**
      * Open a connection to a remote node.
-     * 
+     *
      * @param other
-     *                the remote node to which you wish to connect.
-     * 
+     *            the remote node to which you wish to connect.
+     *
      * @return a connection to the remote node.
-     * 
+     *
      * @exception java.net.UnknownHostException
-     *                    if the remote host could not be found.
-     * 
+     *                if the remote host could not be found.
+     *
      * @exception java.io.IOException
-     *                    if it was not possible to connect to the remote node.
-     * 
+     *                if it was not possible to connect to the remote node.
+     *
      * @exception OtpAuthException
-     *                    if the connection was refused by the remote node.
+     *                if the connection was refused by the remote node.
      */
     public OtpConnection connect(final OtpPeer other) throws IOException,
-	    UnknownHostException, OtpAuthException {
-	return new OtpConnection(this, other);
+            UnknownHostException, OtpAuthException {
+        return new OtpConnection(this, other);
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpServer.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpServer.java
index 0de399ac61..9a7d8bdd60 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpServer.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpServer.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2000-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -23,88 +23,89 @@ import java.io.IOException;
 /**
  * Represents a local OTP client or server node. It is used when you want other
  * nodes to be able to establish connections to this one.
- * 
+ *
  * When you create an instance of this class, it will bind a socket to a port so
  * that incoming connections can be accepted. However the port number will not
  * be made available to other nodes wishing to connect until you explicitely
  * register with the port mapper daemon by calling {@link #publishPort()}.
- * 
+ *
  * <p>
  * When the Java node will be connecting to a remote Erlang, Java or C node, it
  * must first identify itself as a node by creating an instance of this class,
  * after which it may connect to the remote node.
- * 
+ *
  * <p>
  * Setting up a connection may be done as follows:
- * 
- * 
+ *
+ *
  * <pre>
  * OtpServer self = new OtpServer(&quot;server&quot;, &quot;cookie&quot;); // identify self
  * self.publishPort(); // make port information available
- * 
+ *
  * OtpConnection conn = self.accept(); // get incoming connection
  * </pre>
- * 
+ *
  * @see OtpSelf
- * 
- * @deprecated the functionality of this class has been moved to {@link OtpSelf}.
+ *
+ * @deprecated the functionality of this class has been moved to {@link OtpSelf}
+ *             .
  */
 @Deprecated
 public class OtpServer extends OtpSelf {
     /**
      * Create an {@link OtpServer} from an existing {@link OtpSelf}.
-     * 
+     *
      * @param self
-     *                an existing self node.
-     * 
+     *            an existing self node.
+     *
      * @exception java.io.IOException
-     *                    if a ServerSocket could not be created.
-     * 
+     *                if a ServerSocket could not be created.
+     *
      */
     public OtpServer(final OtpSelf self) throws IOException {
-	super(self.node(), self.cookie());
+        super(self.node(), self.cookie());
     }
 
     /**
      * Create an OtpServer, using a vacant port chosen by the operating system.
      * To determine what port was chosen, call the object's {@link #port()}
      * method.
-     * 
+     *
      * @param node
-     *                the name of the node.
-     * 
+     *            the name of the node.
+     *
      * @param cookie
-     *                the authorization cookie that will be used by this node
-     *                when accepts connections from remote nodes.
-     * 
+     *            the authorization cookie that will be used by this node when
+     *            accepts connections from remote nodes.
+     *
      * @exception java.io.IOException
-     *                    if a ServerSocket could not be created.
-     * 
+     *                if a ServerSocket could not be created.
+     *
      */
     public OtpServer(final String node, final String cookie) throws IOException {
-	super(node, cookie);
+        super(node, cookie);
     }
 
     /**
      * Create an OtpServer, using the specified port number.
-     * 
+     *
      * @param node
-     *                a name for this node, as above.
-     * 
+     *            a name for this node, as above.
+     *
      * @param cookie
-     *                the authorization cookie that will be used by this node
-     *                when accepts connections from remote nodes.
-     * 
+     *            the authorization cookie that will be used by this node when
+     *            accepts connections from remote nodes.
+     *
      * @param port
-     *                the port number to bind the socket to.
-     * 
+     *            the port number to bind the socket to.
+     *
      * @exception java.io.IOException
-     *                    if a ServerSocket could not be created or if the
-     *                    chosen port number was not available.
-     * 
+     *                if a ServerSocket could not be created or if the chosen
+     *                port number was not available.
+     *
      */
     public OtpServer(final String node, final String cookie, final int port)
-	    throws IOException {
-	super(node, cookie, port);
+            throws IOException {
+        super(node, cookie, port);
     }
 }
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpServerSocketTransport.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpServerSocketTransport.java
new file mode 100644
index 0000000000..0e25b6bfb7
--- /dev/null
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpServerSocketTransport.java
@@ -0,0 +1,68 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2015. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+package com.ericsson.otp.erlang;
+
+import java.io.IOException;
+import java.net.ServerSocket;
+import java.net.Socket;
+
+/**
+ * Default socket-based server transport
+ * 
+ * @author Dmitriy Kargapolov
+ */
+public class OtpServerSocketTransport implements OtpServerTransport {
+
+    /**
+     * Underlying server socket
+     */
+    private final ServerSocket socket;
+
+    /**
+     * @see ServerSocket#ServerSocket(int)
+     */
+    public OtpServerSocketTransport(final int port) throws IOException {
+        socket = new ServerSocket(port);
+    }
+
+    /**
+     * @see ServerSocket#getLocalPort()
+     */
+    public int getLocalPort() {
+        return socket.getLocalPort();
+    }
+
+    /**
+     * @see ServerSocket#accept()
+     */
+    public OtpTransport accept() throws IOException {
+        final Socket sock = socket.accept();
+        sock.setTcpNoDelay(true);
+        return new OtpSocketTransport(sock);
+    }
+
+    /**
+     * @see ServerSocket#close()
+     */
+    public void close() throws IOException {
+        socket.close();
+    }
+
+}
diff --git a/erts/emulator/hipe/hipe_perfctr.h b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpServerTransport.java
index 8fbf9ecf35..4d31380bee 100644
--- a/erts/emulator/hipe/hipe_perfctr.h
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpServerTransport.java
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2004-2011. All Rights Reserved.
+ * Copyright Ericsson AB 2015. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -17,7 +17,30 @@
  * %CopyrightEnd%
  */
 
+package com.ericsson.otp.erlang;
 
-extern int hipe_perfctr_hrvtime_open(void);
-extern void hipe_perfctr_hrvtime_close(void);
-extern double hipe_perfctr_hrvtime_get(void);
+import java.io.IOException;
+import java.net.ServerSocket;
+
+/**
+ * Server-side connection-oriented transport interface.
+ * 
+ * @author Dmitriy Kargapolov
+ */
+public interface OtpServerTransport {
+
+    /**
+     * @see ServerSocket#getLocalPort()
+     */
+    int getLocalPort();
+
+    /**
+     * @see ServerSocket#accept()
+     */
+    OtpTransport accept() throws IOException;
+
+    /**
+     * @see ServerSocket#close()
+     */
+    void close() throws IOException;
+}
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpSocketTransport.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpSocketTransport.java
new file mode 100644
index 0000000000..f690ab59ed
--- /dev/null
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpSocketTransport.java
@@ -0,0 +1,89 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2015. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+package com.ericsson.otp.erlang;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.InetAddress;
+import java.net.Socket;
+import java.net.UnknownHostException;
+
+/**
+ * Default socket-based client transport
+ * 
+ * @author Dmitriy Kargapolov
+ */
+public class OtpSocketTransport implements OtpTransport {
+
+    /**
+     * Underlying socket
+     */
+    private final Socket socket;
+
+    /**
+     * @see Socket#Socket(String, int)
+     */
+    public OtpSocketTransport(final String addr, final int port)
+            throws UnknownHostException, IOException {
+        socket = new Socket(addr, port);
+        socket.setTcpNoDelay(true);
+    }
+
+    /**
+     * @see Socket#Socket(InetAddress, int)
+     */
+    public OtpSocketTransport(final InetAddress addr, final int port)
+            throws UnknownHostException, IOException {
+        socket = new Socket(addr, port);
+        socket.setTcpNoDelay(true);
+    }
+
+    /**
+     * Socket wrapping constructor
+     * 
+     * @param s
+     *            socket to wrap
+     */
+    public OtpSocketTransport(final Socket s) {
+        socket = s;
+    }
+
+    /**
+     * @see Socket#getInputStream()
+     */
+    public InputStream getInputStream() throws IOException {
+        return socket.getInputStream();
+    }
+
+    /**
+     * @see Socket#getOutputStream()
+     */
+    public OutputStream getOutputStream() throws IOException {
+        return socket.getOutputStream();
+    }
+
+    /**
+     * @see Socket#close()
+     */
+    public void close() throws IOException {
+        socket.close();
+    }
+}
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpSocketTransportFactory.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpSocketTransportFactory.java
new file mode 100644
index 0000000000..f6b5bfc86d
--- /dev/null
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpSocketTransportFactory.java
@@ -0,0 +1,56 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2015. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+package com.ericsson.otp.erlang;
+
+import java.io.IOException;
+import java.net.InetAddress;
+
+/**
+ * Default socket-based transport factory
+ * 
+ * @author Dmitriy Kargapolov
+ */
+public class OtpSocketTransportFactory implements OtpTransportFactory {
+
+    /**
+     * @see OtpTransportFactory#createTransport(String, int)
+     */
+    public OtpTransport createTransport(final String addr, final int port)
+            throws IOException {
+        return new OtpSocketTransport(addr, port);
+    }
+
+    /**
+     * @see OtpTransportFactory#createTransport(InetAddress, int)
+     */
+    public OtpTransport createTransport(final InetAddress addr, final int port)
+            throws IOException {
+        return new OtpSocketTransport(addr, port);
+    }
+
+    /**
+     * @see OtpTransportFactory#createServerTransport(int)
+     */
+    public OtpServerTransport createServerTransport(final int port)
+            throws IOException {
+        return new OtpServerSocketTransport(port);
+    }
+
+}
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpSystem.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpSystem.java
index 969da39d70..8eb1f86764 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpSystem.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpSystem.java
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2004-2009. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 package com.ericsson.otp.erlang;
@@ -24,27 +24,27 @@ final class OtpSystem {
 
     static {
 
-	final String rel = System.getProperty("OtpCompatRel", "0");
-
-	try {
-
-	    switch (Integer.parseInt(rel)) {
-	    case 1:
-	    case 2:
-	    case 3:
-	    case 4:
-	    case 5:
-	    case 6:
-	    case 7:
-	    case 8:
-	    case 9:
-	    case 0:
-	    default:
-		break;
-	    }
-	} catch (final NumberFormatException e) {
-	    /* Ignore ... */
-	}
+        final String rel = System.getProperty("OtpCompatRel", "0");
+
+        try {
+
+            switch (Integer.parseInt(rel)) {
+            case 1:
+            case 2:
+            case 3:
+            case 4:
+            case 5:
+            case 6:
+            case 7:
+            case 8:
+            case 9:
+            case 0:
+            default:
+                break;
+            }
+        } catch (final NumberFormatException e) {
+            /* Ignore ... */
+        }
 
     }
 
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpTransport.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpTransport.java
new file mode 100644
index 0000000000..51c62d9ef0
--- /dev/null
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpTransport.java
@@ -0,0 +1,49 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2015. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+package com.ericsson.otp.erlang;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.Socket;
+
+/**
+ * Client-side connection-oriented transport interface.
+ * 
+ * @author Dmitriy Kargapolov
+ */
+public interface OtpTransport {
+
+    /**
+     * @see Socket#getInputStream()
+     */
+    public abstract InputStream getInputStream() throws IOException;
+
+    /**
+     * @see Socket#getOutputStream()
+     */
+    public abstract OutputStream getOutputStream() throws IOException;
+
+    /**
+     * @see Socket#close()
+     */
+    public abstract void close() throws IOException;
+
+}
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpTransportFactory.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpTransportFactory.java
new file mode 100644
index 0000000000..bd404daea5
--- /dev/null
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpTransportFactory.java
@@ -0,0 +1,124 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2015. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+package com.ericsson.otp.erlang;
+
+import java.io.IOException;
+import java.net.InetAddress;
+
+/**
+ * Factory class used to create client- and server-side transport instances. One
+ * static instance of class implementing this interface is created when program
+ * loaded. Default implementation used is {@link OtpSocketTransportFactory}.
+ * JInterface user can specify custom transport factory implementing this
+ * interface in the following ways:
+ * <dl>
+ * <dt>defining static class as internal to class holding main() method</dt>
+ * <dd>In the systems, where main class can be retrieved with
+ * <code>System.getProperty("sun.java.command")</code>, user can define static
+ * class <b>OtpErlangSystemTuner</b> internal to the main class, providing at
+ * least one static method with the name <b>getOtpTransportFactory</b>, with no
+ * parameters, returning object of class implementing
+ * <b>OtpTransportFactory</b>, for example:
+ * 
+ * <pre>
+ * 
+ * public class MyMainClass {
+ * 
+ *     public static class OtpErlangSystemTuner {
+ *         ...
+ *         public static OtpTransportFactory getOtpTransportFactory() {
+ *             return new MyTransportFactory();
+ *         }
+ *     }
+ * 
+ *     public static class MyTransportFactory implements OtpTransportFactory {
+ *         ...
+ *     }
+ * 
+ *     public static void main(String[] args) {
+ *         ...
+ *     }
+ * }
+ * 
+ * 
+ * </pre>
+ * 
+ * </dd>
+ * 
+ * <dt>specifying factory class in the system properties</dt>
+ * <dd>User-defined transport factory class may be specified via system property
+ * <b>OtpTransportFactory</b>, for example:
+ * 
+ * <pre>
+ * 
+ * package com.my.company;
+ * 
+ * public static class MyTransportFactory implements OtpTransportFactory {
+ *     ...
+ * }
+ * </pre>
+ * 
+ * In such case program may be run with
+ * -DOtpTransportFactory=com.my.company.MyTransportFactory, or other way of
+ * setting system property <i>before execution of static initializers</i> may be
+ * used.</dd>
+ * </dl>
+ * 
+ * @author Dmitriy Kargapolov
+ */
+public interface OtpTransportFactory {
+
+    /**
+     * Create instance of {@link OtpTransport}
+     * 
+     * @param addr
+     *            host name or IP address string
+     * @param port
+     *            port number
+     * @return new socket object
+     * @throws IOException
+     */
+    public abstract OtpTransport createTransport(String addr, int port)
+            throws IOException;
+
+    /**
+     * Create instance of {@link OtpTransport}
+     * 
+     * @param addr
+     *            peer address
+     * @param port
+     *            port number
+     * @return new socket object
+     * @throws IOException
+     */
+    public abstract OtpTransport createTransport(InetAddress addr, int port)
+            throws IOException;
+
+    /**
+     * Create instance of {@link OtpServerTransport}
+     * 
+     * @param port
+     *            port number to listen on
+     * @return new socket object
+     * @throws IOException
+     */
+    public OtpServerTransport createServerTransport(int port)
+            throws IOException;
+}
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/java_files b/lib/jinterface/java_src/com/ericsson/otp/erlang/java_files
index 62fa7f990e..a0f19bc1aa 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/java_files
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/java_files
@@ -53,7 +53,13 @@ COMM = \
 	OtpOutputStream \
 	OtpPeer \
 	OtpSelf \
-	OtpServer
+	OtpServer \
+	OtpServerSocketTransport \
+	OtpServerTransport \
+	OtpSocketTransport \
+	OtpSocketTransportFactory \
+	OtpTransport \
+	OtpTransportFactory
 
 ERL = \
 	OtpErlangAtom \
diff --git a/lib/jinterface/priv/.gitignore b/lib/jinterface/priv/.gitignore
deleted file mode 100644
index e69de29bb2..0000000000
--- a/lib/jinterface/priv/.gitignore
+++ /dev/null
diff --git a/lib/jinterface/test/.classpath b/lib/jinterface/test/.classpath
new file mode 100644
index 0000000000..2e4a3e6776
--- /dev/null
+++ b/lib/jinterface/test/.classpath
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" output="jinterface_SUITE_data" path="jinterface_SUITE_data"/>
+	<classpathentry kind="src" output="nc_SUITE_data" path="nc_SUITE_data"/>
+	<classpathentry combineaccessrules="false" kind="src" path="/jinterface"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.6"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>
diff --git a/lib/jinterface/test/.project b/lib/jinterface/test/.project
new file mode 100644
index 0000000000..4144c6ebea
--- /dev/null
+++ b/lib/jinterface/test/.project
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>jinterface_tests</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>
diff --git a/lib/jinterface/test/.settings/org.eclipse.jdt.core.prefs b/lib/jinterface/test/.settings/org.eclipse.jdt.core.prefs
new file mode 100644
index 0000000000..af0f20f97a
--- /dev/null
+++ b/lib/jinterface/test/.settings/org.eclipse.jdt.core.prefs
@@ -0,0 +1,7 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.5
+org.eclipse.jdt.core.compiler.compliance=1.5
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.5
diff --git a/lib/jinterface/test/jinterface_SUITE.erl b/lib/jinterface/test/jinterface_SUITE.erl
index 00abc97ff5..73bab98559 100644
--- a/lib/jinterface/test/jinterface_SUITE.erl
+++ b/lib/jinterface/test/jinterface_SUITE.erl
@@ -22,7 +22,8 @@
 	 init_per_suite/1, end_per_suite/1,
 	 init_per_testcase/2, end_per_testcase/2]).
 
--export([nodename/1, register_and_whereis/1, get_names/1, boolean_atom/1,
+-export([transport_factory/1,
+	 nodename/1, register_and_whereis/1, get_names/1, boolean_atom/1,
 	 node_ping/1, mbox_ping/1,
 	 java_erlang_send_receive/1,
 	 java_internal_send_receive_same_node/1,
@@ -39,7 +40,8 @@
 	 status_handler_localStatus/1, status_handler_remoteStatus/1,
 	 status_handler_connAttempt/1,
 	 maps/1,
-	 fun_equals/1
+	 fun_equals/1,
+	 core_match_bind/1
      ]).
 
 -include_lib("common_test/include/ct.hrl").
@@ -103,12 +105,14 @@ end_per_group(_GroupName, Config) ->
 
 fundamental() ->
     [
+     transport_factory,    % TransportFactoryTest.java
      nodename,             % Nodename.java
      register_and_whereis, % RegisterAndWhereis.java
      get_names,            % GetNames.java
      boolean_atom,         % BooleanAtom.java
      maps,                 % Maps.java
-     fun_equals            % FunEquals.java
+     fun_equals,           % FunEquals.java
+     core_match_bind       % CoreMatchBind.java
     ].
 
 ping() ->
@@ -201,6 +205,16 @@ end_per_testcase(_Case,Config) ->
 %%%-----------------------------------------------------------------
 %%% TEST CASES
 %%%-----------------------------------------------------------------
+transport_factory(doc) ->
+    ["TransportFactoryTest.java: Test custom OTP Transport Factory"];
+transport_factory(suite) ->
+    [];
+transport_factory(Config) when is_list(Config) ->
+    ok = jitu:java(?config(java, Config),
+		   ?config(data_dir, Config),
+		   "TransportFactoryTest").
+
+%%%-----------------------------------------------------------------
 nodename(doc) ->
     ["Nodename.java: "
      "Test OtpNode.node(), OtpNode.alive() and OtpNode.host()"];
@@ -705,6 +719,18 @@ fun_equals(Config) when is_list(Config) ->
            []).
 
 %%%-----------------------------------------------------------------
+core_match_bind(doc) ->
+    ["CoreMatchBind.java: "
+     "Test OtpErlangObject.match() and bind()"];
+core_match_bind(suite) ->
+    [];
+core_match_bind(Config) when is_list(Config) ->
+    ok = jitu:java(?config(java, Config),
+           ?config(data_dir, Config),
+           "CoreMatchBind",
+           []).
+
+%%%-----------------------------------------------------------------
 %%% INTERNAL FUNCTIONS
 %%%-----------------------------------------------------------------
 send_receive(TestCaseTag,Fun,Config) ->
diff --git a/lib/jinterface/test/jinterface_SUITE_data/.gitignore b/lib/jinterface/test/jinterface_SUITE_data/.gitignore
new file mode 100644
index 0000000000..6b468b62a9
--- /dev/null
+++ b/lib/jinterface/test/jinterface_SUITE_data/.gitignore
@@ -0,0 +1 @@
+*.class
diff --git a/lib/jinterface/test/jinterface_SUITE_data/CoreMatchBind.java b/lib/jinterface/test/jinterface_SUITE_data/CoreMatchBind.java
new file mode 100644
index 0000000000..a78a63093e
--- /dev/null
+++ b/lib/jinterface/test/jinterface_SUITE_data/CoreMatchBind.java
@@ -0,0 +1,584 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2000-2015. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+import com.ericsson.otp.erlang.OtpErlangException;
+import com.ericsson.otp.erlang.OtpErlangInt;
+import com.ericsson.otp.erlang.OtpErlangList;
+import com.ericsson.otp.erlang.OtpErlangMap;
+import com.ericsson.otp.erlang.OtpErlangObject;
+import com.ericsson.otp.erlang.OtpErlangTuple;
+import com.ericsson.otp.erlang.OtpOutputStream;
+
+public class CoreMatchBind {
+
+    @SuppressWarnings("serial")
+    private static class DumbObject extends OtpErlangObject {
+
+        @Override
+        public String toString() {
+            return this.getClass().getSimpleName();
+        }
+
+        @Override
+        public void encode(final OtpOutputStream buf) {
+            fail("unexpected encode() call");
+        }
+
+        @Override
+        public boolean equals(final Object o) {
+            fail("unexpected equals() call");
+            return false;
+        }
+
+    }
+
+    @SuppressWarnings("serial")
+    private static class BoundObject extends OtpErlangObject {
+
+        @Override
+        public String toString() {
+            return this.getClass().getSimpleName();
+        }
+
+        @Override
+        public void encode(final OtpOutputStream buf) {
+            fail("unexpected encode() call");
+        }
+
+        @Override
+        public boolean equals(final Object o) {
+            fail("unexpected equals() call");
+            return false;
+        }
+
+    }
+
+    @SuppressWarnings("serial")
+    private static class TestObject extends OtpErlangObject {
+
+        private final Binder binder;
+        private DumbObject dumb;
+        private boolean flag;
+        private BoundObject obj;
+
+        public TestObject(final boolean flag, final Binder binder,
+                final DumbObject dumb) {
+            this.flag = flag;
+            this.binder = binder;
+            this.dumb = dumb;
+        }
+
+        public TestObject(final Binder binder, final BoundObject obj) {
+            this.binder = binder;
+            this.obj = obj;
+        }
+
+        public DumbObject getDumb() {
+            return dumb;
+        }
+
+        @Override
+        public String toString() {
+            return flag ? "T" : "F";
+        }
+
+        @Override
+        public void encode(final OtpOutputStream buf) {
+            fail("unexpected encode() call");
+        }
+
+        @Override
+        public boolean equals(final Object o) {
+            if (obj == null) {
+                fail("unexpected equals() call");
+            }
+            return o == obj;
+        }
+
+        @Override
+        public <T> boolean match(final OtpErlangObject term, final T binds) {
+            if (binds != binder) {
+                fail("invalid binder");
+            }
+            if (term != dumb) {
+                fail("invalid object");
+            }
+            return flag;
+        }
+
+        @Override
+        public <T> OtpErlangObject bind(final T binds)
+                throws OtpErlangException {
+            if (binds != binder) {
+                fail("invalid binder");
+            }
+            return obj;
+        }
+
+    }
+
+    /*
+     * "always matched" object
+     */
+    @SuppressWarnings("serial")
+    private static class Any extends OtpErlangObject {
+
+        @Override
+        public String toString() {
+            return "any";
+        }
+
+        @Override
+        public void encode(final OtpOutputStream buf) {
+            fail("unexpected encode() call");
+        }
+
+        @Override
+        public boolean equals(final Object o) {
+            fail("unexpected equals() call");
+            return false;
+        }
+
+        @Override
+        public <T> boolean match(final OtpErlangObject term, final T binds) {
+            return true;
+        }
+    }
+
+    private static class Binder {
+        // make object pair for match() testing
+        TestObject makeTest(final boolean flag) {
+            return new TestObject(flag, this, new DumbObject());
+        }
+
+        // make object pair for bind() testing
+        TestObject makeTest() {
+            return new TestObject(this, new BoundObject());
+        }
+    }
+
+    private static void isNotNull(final Object o) throws Exception {
+        if (o == null) {
+            throw new Exception("not null expected");
+        }
+    }
+
+    private static void fail(final String string) {
+        System.err.println(string);
+        new Throwable().printStackTrace(System.err);
+        System.exit(1);
+    }
+
+    private static void isT(final boolean b) throws Exception {
+        if (!b) {
+            throw new Exception("true expected");
+        }
+    }
+
+    private static void isF(final boolean b) throws Exception {
+        if (b) {
+            throw new Exception("false expected");
+        }
+    }
+
+    private static void equals(final OtpErlangObject a, final OtpErlangObject b)
+            throws Exception {
+        if (!a.equals(b)) {
+            throw new Exception(a + " != " + b);
+        }
+    }
+
+    /*
+     * scalar match test - match particular test object (producing given result)
+     * against particular dumb object passing particular bindings object; ensure
+     * all participants are used as expected in match behavior, check result.
+     */
+    private static void scalar_match_test() throws Exception {
+        final Binder bind = new Binder();
+
+        final TestObject t = bind.makeTest(true);
+        isT(t.match(t.getDumb(), bind));
+
+        final TestObject f = bind.makeTest(false);
+        isF(f.match(f.getDumb(), bind));
+    }
+
+    /*
+     * scalar bind test - ensure right object generated based on bindings
+     */
+    private static void scalar_bind_test() throws Exception {
+        final Binder bind = new Binder();
+        final TestObject t = bind.makeTest();
+        final OtpErlangObject o = t.bind(bind);
+        isNotNull(o);
+        equals(t, o);
+    }
+
+    /*
+     * used by tuple_arity_match_test()
+     */
+    private static OtpErlangObject mkTuplePattern(final int n) {
+        final Any a[] = new Any[n];
+        for (int i = 0; i < n; i++) {
+            a[i] = new Any();
+        }
+        return new OtpErlangTuple(a);
+    }
+
+    /*
+     * used by tuple_arity_match_test()
+     */
+    private static OtpErlangObject mkTupleObject(final int n) {
+        final DumbObject a[] = new DumbObject[n];
+        for (int i = 0; i < n; i++) {
+            a[i] = new DumbObject();
+        }
+        return new OtpErlangTuple(a);
+    }
+
+    /*
+     * ensure only tuples of the same arity can match
+     */
+    private static void tuple_arity_match_test(final int m, final int n)
+            throws Exception {
+        final Binder bind = new Binder();
+        for (int i = m; i < n; i++) {
+            for (int j = m; j < n; j++) {
+                final OtpErlangObject p = mkTuplePattern(i);
+                final OtpErlangObject o = mkTupleObject(j);
+                if (i == j) {
+                    isT(p.match(o, bind));
+                } else {
+                    isF(p.match(o, bind));
+                }
+            }
+        }
+    }
+
+    /*
+     * tuple match test - ensure elements of tuple are matched to corresponding
+     * elements of tested object and result is logical "and" over all elements.
+     */
+    private static void tuple_match_test(final int n) throws Exception {
+        final Binder bind = new Binder();
+        final int max = 1 << n;
+        final TestObject a[] = new TestObject[n];
+        final DumbObject d[] = new DumbObject[n];
+        for (int k = 0; k < max; k++) {
+            for (int m = 1, i = 0; m < max; m = m << 1, i++) {
+                d[i] = new DumbObject();
+                a[i] = new TestObject((k & m) != 0, bind, d[i]);
+            }
+            final OtpErlangObject tpl = new OtpErlangTuple(a);
+            final OtpErlangObject obj = new OtpErlangTuple(d);
+            if (k + 1 < max) {
+                isF(tpl.match(obj, bind));
+            } else {
+                isT(tpl.match(obj, bind));
+            }
+        }
+    }
+
+    /*
+     * tuple bind test - ensure result is a tuple where each element is a result
+     * of binding of corresponding pattern element using provided bindings.
+     */
+    private static void tuple_bind_test(final int n) throws Exception {
+        final Binder bind = new Binder();
+        final TestObject a[] = new TestObject[n];
+        final OtpErlangObject b[] = new OtpErlangObject[n];
+        for (int i = 0; i < n; i++) {
+            a[i] = bind.makeTest();
+            b[i] = a[i].obj;
+        }
+        final OtpErlangObject t = new OtpErlangTuple(a);
+        final OtpErlangObject o = t.bind(bind);
+        isNotNull(o);
+        equals(t, o);
+    }
+
+    private static OtpErlangObject mkListPattern(final int n, final boolean tail)
+            throws OtpErlangException {
+        final Any a[] = new Any[n];
+        for (int i = 0; i < n; i++) {
+            a[i] = new Any();
+        }
+        return tail ? new OtpErlangList(a, new Any()) : new OtpErlangList(a);
+    }
+
+    private static OtpErlangObject mkListObject(final int n, final boolean tail)
+            throws OtpErlangException {
+        final DumbObject a[] = new DumbObject[n];
+        for (int i = 0; i < n; i++) {
+            a[i] = new DumbObject();
+        }
+        return tail ? new OtpErlangList(a, new DumbObject())
+                : new OtpErlangList(a);
+    }
+
+    /*
+     * ensure only lists of the same arity and same tail presence can match
+     */
+    private static void list_arity_match_test(final int m, final int n)
+            throws Exception {
+        final Binder bind = new Binder();
+        for (int i = m; i < n; i++) {
+            for (int j = m; j < n; j++) {
+                for (int k = 0; k < 2; k++) {
+                    if (i == 0 && k == 1) {
+                        continue;
+                    }
+                    for (int l = 0; l < 2; l++) {
+                        if (j == 0 && l == 1) {
+                            continue;
+                        }
+                        final OtpErlangObject p = mkListPattern(i, k == 1);
+                        final OtpErlangObject o = mkListObject(j, l == 1);
+                        if (i == j && k == l || k == 1 && i <= j) {
+                            isT(p.match(o, bind));
+                        } else {
+                            isF(p.match(o, bind));
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    /*
+     * lists match test - ensure elements of lists are matched to corresponding
+     * elements of tested object and result is logical "and" over all elements,
+     * count tails as well
+     */
+    private static void list_match_test(final int n) throws Exception {
+        final Binder bind = new Binder();
+        final int max = 1 << n;
+        final TestObject a[] = new TestObject[n];
+        final DumbObject d[] = new DumbObject[n];
+        final DumbObject e[] = new DumbObject[n + 1];
+        for (int k = 0; k < max; k++) {
+            for (int m = 1, i = 0; m < max; m = m << 1, i++) {
+                d[i] = new DumbObject();
+                e[i] = d[i];
+                a[i] = new TestObject((k & m) != 0, bind, d[i]);
+            }
+            for (int i = n; i < n + 1; i++) {
+                e[i] = new DumbObject();
+            }
+            final OtpErlangObject lst = new OtpErlangList(a);
+            final OtpErlangObject obj = new OtpErlangList(d);
+            final OtpErlangObject ext = new OtpErlangList(e);
+            final OtpErlangObject eTl = new OtpErlangList(e, new DumbObject());
+
+            if (n > 0) {
+                final DumbObject dTail = new DumbObject();
+                final TestObject tTail = new TestObject(true, bind, dTail);
+                final TestObject fTail = new TestObject(false, bind, dTail);
+                final OtpErlangObject fTailLst = new OtpErlangList(a, fTail);
+                final OtpErlangObject tTailLst = new OtpErlangList(a, tTail);
+                final OtpErlangObject tailObj = new OtpErlangList(d, dTail);
+
+                // match lists with non-matching tails is always false
+                isF(fTailLst.match(tailObj, bind));
+
+                // match list with no tail to list with tail is always false
+                isF(lst.match(tailObj, bind));
+
+                // matching lists with matching tails
+                if (k + 1 < max) {
+                    isF(tTailLst.match(tailObj, bind));
+                } else {
+                    isT(tTailLst.match(tailObj, bind));
+                }
+
+                // matching shorter pattern with last tail to longer list
+                // with or with no extra tail; matching list pattern
+                // with last tail to same length list with no tail.
+                final Any aTail = new Any();
+                final OtpErlangObject shortLst = new OtpErlangList(a, aTail);
+                if (k + 1 < max) {
+                    isF(shortLst.match(obj, bind)); // same arity
+                    isF(shortLst.match(ext, bind)); // pattern arity is less
+                    isF(shortLst.match(eTl, bind)); //
+                } else {
+                    isT(shortLst.match(obj, bind)); // same arity
+                    isT(shortLst.match(ext, bind)); // pattern arity is less
+                    isT(shortLst.match(eTl, bind)); //
+                }
+            }
+
+            // matching lists with no tails
+            if (k + 1 < max) {
+                isF(lst.match(obj, bind));
+            } else {
+                isT(lst.match(obj, bind));
+            }
+
+            // extra-length object, no tail in "pattern"
+            isF(lst.match(ext, bind));
+        }
+    }
+
+    /*
+     * list bind test - ensure result is a list where each element is a result
+     * of binding of corresponding pattern element using provided bindings.
+     */
+    private static void list_bind_test(final int n) throws Exception {
+        final Binder bind = new Binder();
+        final TestObject a[] = new TestObject[n];
+        final OtpErlangObject b[] = new OtpErlangObject[n];
+        for (int i = 0; i < n; i++) {
+            a[i] = bind.makeTest();
+            b[i] = a[i].obj;
+        }
+        OtpErlangObject t = new OtpErlangList(a);
+        OtpErlangObject o = t.bind(bind);
+        isNotNull(o);
+        equals(t, o);
+        if (n > 0) {
+            // improper list case
+            t = new OtpErlangList(a, bind.makeTest());
+            o = t.bind(bind);
+            isNotNull(o);
+            equals(t, o);
+        }
+    }
+
+    /*
+     * map match test - object may have more keys than pattern
+     */
+    private static void map_match_test(final int m, final int n)
+            throws Exception {
+        final Binder bind = new Binder();
+
+        // pattern side - m elements
+        final OtpErlangObject k1[] = new OtpErlangObject[m];
+        final TestObject a[] = new TestObject[m];
+
+        // object side - n elements
+        final OtpErlangObject k2[] = new OtpErlangObject[n];
+        final DumbObject d[] = new DumbObject[n];
+
+        final int max = Math.max(m, n);
+        final int mskHi = 1 << max;
+        final int full = (1 << m) - 1;
+        for (int k = 0; k < mskHi; k++) {
+            for (int msk = 1, i = 0; msk < mskHi; msk = msk << 1, i++) {
+                if (i < n) {
+                    k2[i] = new OtpErlangInt(i);
+                    d[i] = new DumbObject();
+                }
+                if (i < m) {
+                    k1[i] = new OtpErlangInt(i);
+                    a[i] = new TestObject((k & msk) != 0, bind, i < n ? d[i]
+                            : new DumbObject());
+                }
+            }
+            final OtpErlangObject map = new OtpErlangMap(k1, a); // m items
+            final OtpErlangObject obj = new OtpErlangMap(k2, d); // n items
+            if ((k & full) == full && m <= n) {
+                isT(map.match(obj, bind));
+            } else {
+                isF(map.match(obj, bind));
+            }
+        }
+    }
+
+    /*
+     * map bind test - ensure result is a map where each element is a result of
+     * binding of corresponding pattern element using provided bindings.
+     */
+    private static void map_bind_test(final int n) throws Exception {
+        final Binder bind = new Binder();
+        final TestObject a[] = new TestObject[n];
+        final OtpErlangObject b[] = new OtpErlangObject[n];
+        final OtpErlangObject k[] = new OtpErlangObject[n];
+        for (int i = 0; i < n; i++) {
+            a[i] = bind.makeTest();
+            b[i] = a[i].obj;
+            k[i] = new OtpErlangInt(i);
+        }
+        final OtpErlangObject t = new OtpErlangMap(k, a);
+        final OtpErlangObject o = t.bind(bind);
+        isNotNull(o);
+        equals(t, o);
+    }
+
+    public static void main(final String[] args) {
+        try {
+            scalar_match_test();
+            System.out.println("scalar_match_test() passed");
+
+            scalar_bind_test();
+            System.out.println("scalar_bind_test() passed");
+
+            for (int m = 0; m < 16; m++) {
+                for (int n = 0; n < 16; n++) {
+                    tuple_arity_match_test(m, n);
+                }
+            }
+            System.out.println("tuple_arity_match_test() passed");
+
+            for (int n = 0; n < 16; n++) {
+                tuple_match_test(n);
+            }
+            System.out.println("tuple_match_test() passed");
+
+            for (int n = 0; n < 16; n++) {
+                tuple_bind_test(n);
+            }
+            System.out.println("tuple_bind_test() passed");
+
+            for (int m = 0; m < 16; m++) {
+                for (int n = 0; n < 16; n++) {
+                    list_arity_match_test(m, n);
+                }
+            }
+            System.out.println("list_arity_match_test() passed");
+
+            for (int n = 0; n < 16; n++) {
+                list_match_test(n);
+            }
+            System.out.println("list_match_test() passed");
+
+            for (int n = 0; n < 16; n++) {
+                list_bind_test(n);
+            }
+            System.out.println("list_bind_test() passed");
+
+            for (int m = 0; m < 12; m++) {
+                for (int n = 0; n < 12; n++) {
+                    map_match_test(m, n);
+                }
+            }
+            System.out.println("map_match_test() passed");
+
+            for (int n = 0; n < 16; n++) {
+                map_bind_test(n);
+            }
+            System.out.println("map_bind_test() passed");
+
+        } catch (final Exception e) {
+            e.printStackTrace();
+            System.exit(1);
+        }
+
+        System.out.println("ok");
+    }
+}
diff --git a/lib/jinterface/test/jinterface_SUITE_data/Makefile.src b/lib/jinterface/test/jinterface_SUITE_data/Makefile.src
index cd68f1ead5..a4a69000c6 100644
--- a/lib/jinterface/test/jinterface_SUITE_data/Makefile.src
+++ b/lib/jinterface/test/jinterface_SUITE_data/Makefile.src
@@ -38,6 +38,7 @@ JINTERFACE_CLASSPATH = @jinterface_classpath@
 CLASSPATH = .@PS@$(JINTERFACE_CLASSPATH)@PS@
 
 JAVA_FILES = \
+	TransportFactoryTest.java \
 	Nodename.java \
 	RegisterAndWhereis.java \
 	GetNames.java \
@@ -48,7 +49,8 @@ JAVA_FILES = \
 	MboxLinkUnlink.java \
 	NodeStatusHandler.java \
 	Maps.java \
-	FunEquals.java
+	FunEquals.java \
+	CoreMatchBind.java
 
 CLASS_FILES = $(JAVA_FILES:.java=.class)
 
diff --git a/lib/jinterface/test/jinterface_SUITE_data/TransportFactoryTest.java b/lib/jinterface/test/jinterface_SUITE_data/TransportFactoryTest.java
new file mode 100644
index 0000000000..367e28a512
--- /dev/null
+++ b/lib/jinterface/test/jinterface_SUITE_data/TransportFactoryTest.java
@@ -0,0 +1,90 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2015. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+import java.io.IOException;
+import java.net.InetAddress;
+
+import com.ericsson.otp.erlang.OtpSelf;
+import com.ericsson.otp.erlang.OtpServerTransport;
+import com.ericsson.otp.erlang.OtpSocketTransportFactory;
+import com.ericsson.otp.erlang.OtpTransport;
+import com.ericsson.otp.erlang.OtpTransportFactory;
+
+/**
+ * @author Dmitriy Kargapolov
+ */
+public class TransportFactoryTest {
+
+    /**
+     * example of custom transport factory wrapping default one
+     */
+    public static class TransportFactory implements OtpTransportFactory {
+
+        OtpSocketTransportFactory tf = new OtpSocketTransportFactory();
+
+        public OtpTransport createTransport(final String addr, final int port)
+                throws IOException {
+            clientOk = true;
+            System.out.println("creating transport to " + addr + ", " + port);
+            return tf.createTransport(addr, port);
+        }
+
+        public OtpTransport createTransport(final InetAddress addr,
+                final int port) throws IOException {
+            clientOk = true;
+            System.out.println("creating transport to " + addr + ", " + port);
+            return tf.createTransport(addr, port);
+        }
+
+        public OtpServerTransport createServerTransport(final int port)
+                throws IOException {
+            serverOk = true;
+            System.out.println("creating server transport to " + port);
+            return tf.createServerTransport(port);
+        }
+
+    }
+
+    static boolean serverOk = false;
+    static boolean clientOk = false;
+
+    public static void main(final String[] args) throws IOException {
+
+        // check server transport
+        final OtpSelf self = new OtpSelf("local", new TransportFactory());
+        if (!serverOk) {
+            fail("custom server transport was not created");
+        }
+        System.out.println("accepting connections on " + self.port());
+
+        // check client transport
+        try {
+            self.publishPort();
+        } catch (final Exception e) {
+        }
+        if (!clientOk) {
+            fail("custom client transport was not created");
+        }
+    }
+
+    private static void fail(final String string) {
+        System.err.println(string);
+        System.exit(1);
+    }
+}
diff --git a/lib/jinterface/test/jitu.erl b/lib/jinterface/test/jitu.erl
index 46b8cb3ac2..8097237af6 100644
--- a/lib/jinterface/test/jitu.erl
+++ b/lib/jinterface/test/jitu.erl
@@ -117,10 +117,7 @@ classpath(Dir) ->
 	end,
     es(Dir++PS++
 	filename:join([code:lib_dir(jinterface),"priv","OtpErlang.jar"])++PS++
-	case os:getenv("CLASSPATH") of
-	    false -> "";
-	    Classpath -> Classpath
-	end,
+	os:getenv("CLASSPATH", ""),
        Quote,
        EscSpace).
 
diff --git a/lib/jinterface/test/nc_SUITE_data/.gitignore b/lib/jinterface/test/nc_SUITE_data/.gitignore
new file mode 100644
index 0000000000..6b468b62a9
--- /dev/null
+++ b/lib/jinterface/test/nc_SUITE_data/.gitignore
@@ -0,0 +1 @@
+*.class
diff --git a/lib/kernel/doc/src/error_logger.xml b/lib/kernel/doc/src/error_logger.xml
index df2f0b01ee..f49d63b5a6 100644
--- a/lib/kernel/doc/src/error_logger.xml
+++ b/lib/kernel/doc/src/error_logger.xml
@@ -58,12 +58,11 @@
       specific events. (<c>add_report_handler/1,2</c>). Also, there is
       a useful event handler in STDLIB for multi-file logging of events,
       see <c>log_mf_h(3)</c>.</p>
-    <p>Warning events were introduced in Erlang/OTP R9C. To retain
-      backwards compatibility, these are by default tagged as errors,
-      thus showing up as error reports in the logs. By using
-      the command line flag <c><![CDATA[+W <w | i>]]></c>, they can instead
-      be tagged as warnings or info. Tagging them as warnings may
-      require rewriting existing user defined event handlers.</p>
+    <p>Warning events were introduced in Erlang/OTP R9C and are enabled
+      by default as of 18.0. To retain backwards compatibility with existing
+      user defined event handlers, these may be tagged as errors or info
+      using the command line flag <c><![CDATA[+W <e | i | w>]]></c>, thus
+      showing up as error or info reports in the logs.</p>
   </description>
   <datatypes>
     <datatype>
@@ -132,7 +131,7 @@ ok</pre>
       <desc>
         <p>Returns the current mapping for warning events. Events sent
           using <c>warning_msg/1,2</c> or <c>warning_report/1,2</c>
-          are tagged as errors (default), warnings or info, depending
+          are tagged as errors, warnings (default) or info, depending
           on the value of the command line flag <c>+W</c>.</p>
         <pre>
 os$ <input>erl</input>
@@ -140,25 +139,25 @@ Erlang (BEAM) emulator version 5.4.8 [hipe] [threads:0] [kernel-poll]
 
 Eshell V5.4.8  (abort with ^G)
 1> <input>error_logger:warning_map().</input>
-error
-2> <input>error_logger:warning_msg("Warnings tagged as: ~p~n", [error]).</input>
+warning
+2> <input>error_logger:warning_msg("Warnings tagged as: ~p~n", [warning]).</input>
 
-=ERROR REPORT==== 11-Aug-2005::15:31:23 ===
-Warnings tagged as: error
+=WARNING REPORT==== 11-Aug-2005::15:31:55 ===
+Warnings tagged as: warning
 ok
 3> 
 User switch command
  --> q
-os$ <input>erl +W w</input>
+os$ <input>erl +W e</input>
 Erlang (BEAM) emulator version 5.4.8 [hipe] [threads:0] [kernel-poll]
 
 Eshell V5.4.8  (abort with ^G)
 1> <input>error_logger:warning_map().</input>
-warning
-2> <input>error_logger:warning_msg("Warnings tagged as: ~p~n", [warning]).</input>
+error
+2> <input>error_logger:warning_msg("Warnings tagged as: ~p~n", [error]).</input>
 
-=WARNING REPORT==== 11-Aug-2005::15:31:55 ===
-Warnings tagged as: warning
+=ERROR REPORT==== 11-Aug-2005::15:31:23 ===
+Warnings tagged as: error
 ok</pre>
       </desc>
     </func>
diff --git a/lib/kernel/doc/src/file.xml b/lib/kernel/doc/src/file.xml
index dcb9640dcf..338d62e82b 100644
--- a/lib/kernel/doc/src/file.xml
+++ b/lib/kernel/doc/src/file.xml
@@ -1693,9 +1693,9 @@
       <desc>
         <p>Makes sure that any buffers kept by the operating system
           (not by the Erlang runtime system) are written to disk. In
-          many ways it's resembles fsync but it not requires to update
-          some of file's metadata such as the access time. On
-          some platforms, this function might have no effect.</p>
+          many ways it resembles fsync but it does not update
+          some of the file's metadata such as the access time. On
+          some platforms this function has no effect.</p>
         <p>Applications that access databases or log files often write
           a tiny data fragment (e.g., one line in a log file) and then
           call fsync() immediately in order to ensure that the written
@@ -1703,11 +1703,11 @@
           will always initiate two write operations: one for the newly
           written data and another one in order to update the modification
           time stored in the inode. If the modification time is not a part
-          of the transaction concept fdatasync() can be used to avoid
+          of the transaction concept, fdatasync() can be used to avoid
           unnecessary inode disk write operations.</p>
-        <p>Available only in some POSIX systems. This call results in a
-          call to fsync(), or has no effect, in systems not implementing
-          the fdatasync syscall.</p>
+        <p>Available only in some POSIX systems, this call results in a
+          call to fsync(), or has no effect in systems not implementing
+          the fdatasync() syscall.</p>
       </desc>
     </func>
     <func>
diff --git a/lib/kernel/doc/src/gen_tcp.xml b/lib/kernel/doc/src/gen_tcp.xml
index 820ecd1e30..71ef5cd48f 100644
--- a/lib/kernel/doc/src/gen_tcp.xml
+++ b/lib/kernel/doc/src/gen_tcp.xml
@@ -347,11 +347,22 @@ do_recv(Sock, Bs) ->
     </func>
     <func>
       <name name="shutdown" arity="2"/>
-      <fsummary>Immediately close a socket</fsummary>
+      <fsummary>Asynchronously close a socket</fsummary>
       <desc>
-        <p>Immediately close a socket in one or two directions.</p>
+        <p>Close a socket in one or two directions.</p>
         <p><c><anno>How</anno> == write</c> means closing the socket for writing,
           reading from it is still possible.</p>
+        <p>If <c><anno>How</anno> == read</c>, or there is no outgoing
+          data buffered in the <c><anno>Socket</anno></c> port,
+          then the socket is shutdown immediately and any error encountered
+          is returned in <c><anno>Reason</anno></c>.</p>
+        <p>If there is data buffered in the socket port, then the attempt
+          to shutdown the socket is postponed until that data is written to the
+          kernel socket send buffer. Any errors encountered will result
+          in the socket being closed and <c>{error, closed}</c> being returned
+          on the next
+          <seealso marker="gen_tcp#recv/2">recv/2</seealso> or
+          <seealso marker="gen_tcp#send/2">send/2</seealso>.</p>
         <p>To be able to handle that the peer has done a shutdown on
           the write side, the <c>{exit_on_close, false}</c> option
           is useful.</p>
diff --git a/lib/kernel/doc/src/heart.xml b/lib/kernel/doc/src/heart.xml
index 3ec33d2f18..a424d2978e 100644
--- a/lib/kernel/doc/src/heart.xml
+++ b/lib/kernel/doc/src/heart.xml
@@ -78,6 +78,16 @@
 
     <pre>
 % <input>erl -heart -env ERL_CRASH_DUMP_SECONDS 10 ...</input></pre>
+
+  <p> If a regular core dump is wanted, let heart know by setting the kill signal to abort
+      using the environment variable <c><![CDATA[HEART_KILL_SIGNAL=SIGABRT]]></c>.
+      If unset, or not set to <c><![CDATA[SIGABRT]]></c>, the default behaviour will be a kill
+      signal using <c><![CDATA[SIGKILL]]></c>.
+  </p>
+
+    <pre>
+% <input>erl -heart -env HEART_KILL_SIGNAL SIGABRT ...</input></pre>
+
   <p>
 	  Furthermore, <c><![CDATA[ERL_CRASH_DUMP_SECONDS]]></c> has the following behaviour on
 	  <c>heart</c>:
diff --git a/lib/kernel/doc/src/os.xml b/lib/kernel/doc/src/os.xml
index 2b57e75023..b9dbede0d3 100644
--- a/lib/kernel/doc/src/os.xml
+++ b/lib/kernel/doc/src/os.xml
@@ -100,6 +100,19 @@ DirOut = os:cmd("dir"), % on Win32 platform</code>
       </desc>
     </func>
     <func>
+      <name name="getenv" arity="2"/>
+      <fsummary>Get the value of an environment variable</fsummary>
+      <desc>
+        <p>Returns the <c><anno>Value</anno></c> of the environment variable
+          <c><anno>VarName</anno></c>, or <c>DefaultValue</c> if the environment variable
+          is undefined.</p>
+	<p>If Unicode file name encoding is in effect (see the <seealso
+	marker="erts:erl#file_name_encoding">erl manual
+	page</seealso>), the strings (both <c><anno>VarName</anno></c> and
+	<c><anno>Value</anno></c>) may contain characters with codepoints > 255.</p>
+      </desc>
+    </func>
+    <func>
       <name name="getpid" arity="0"/>
       <fsummary>Return the process identifier of the emulator process</fsummary>
       <desc>
@@ -129,14 +142,49 @@ DirOut = os:cmd("dir"), % on Win32 platform</code>
       </desc>
     </func>
     <func>
+      <name name="system_time" arity="0"/>
+      <fsummary>Current OS system time</fsummary>
+      <desc>
+	<p>Returns current
+	<seealso marker="erts:time_correction#OS_System_Time">OS system time</seealso>
+	in <c>native</c>
+	<seealso marker="erts:erlang#type_time_unit">time unit</seealso>.</p>
+
+	<note><p>This time is <em>not</em> a monotonically increasing time.</p></note>
+      </desc>
+    </func>
+    <func>
+      <name name="system_time" arity="1"/>
+      <fsummary>Current OS system time</fsummary>
+      <desc>
+	<p>Returns current
+	<seealso marker="erts:time_correction#OS_System_Time">OS system time</seealso>
+	converted into the <c><anno>Unit</anno></c> passed as argument.</p>
+
+	<p>Calling <c>os:system_time(<anno>Unit</anno>)</c> is equivalent to: 
+	<seealso marker="erts:erlang#convert_time_unit/3"><c>erlang:convert_time_unit</c></seealso><c>(</c><seealso marker="#system_time/0"><c>os:system_time()</c></seealso><c>,
+	native, <anno>Unit</anno>)</c>.</p>
+
+	<note><p>This time is <em>not</em> a monotonically increasing time.</p></note>
+      </desc>
+    </func>
+    <func>
       <name name="timestamp" arity="0"/>
       <type_desc variable="Timestamp">Timestamp = {MegaSecs, Secs, MicroSecs}</type_desc>
-      <fsummary>Returna a timestamp from the OS in the erlang:now/0 format</fsummary>
+      <fsummary>Current OS system time on the erlang:timestamp/0 format</fsummary>
       <desc>
-      <p>Returns a tuple in the same format as <seealso marker="erts:erlang#now/0">erlang:now/0</seealso>. The difference is that this function returns what the operating system thinks (a.k.a. the wall clock time) without any attempts at time correction. The result of two different calls to this function is <em>not</em> guaranteed to be different.</p>
-      <p>The most obvious use for this function is logging. The tuple can be used together with the function <seealso marker="stdlib:calendar#now_to_universal_time/1">calendar:now_to_universal_time/1</seealso> 
-or <seealso marker="stdlib:calendar#now_to_local_time/1">calendar:now_to_local_time/1</seealso> to get calendar time. Using the calendar time together with the <c>MicroSecs</c> part of the return tuple from this function allows you to log timestamps in high resolution and consistent with the time in the rest of the operating system.</p>
-      <p>Example of code formatting a string in the format &quot;DD Mon YYYY HH:MM:SS.mmmmmm&quot;, where DD is the day of month, Mon is the textual month name, YYYY is the year, HH:MM:SS is the time and mmmmmm is the microseconds in six positions:</p>
+      <p>Returns current
+	<seealso marker="erts:time_correction#OS_System_Time">OS system time</seealso>
+        in the same format as <seealso marker="erts:erlang#timestamp/0">erlang:timestamp/0</seealso>.
+	The tuple can be used together with the function
+	<seealso marker="stdlib:calendar#now_to_universal_time/1">calendar:now_to_universal_time/1</seealso> 
+        or <seealso marker="stdlib:calendar#now_to_local_time/1">calendar:now_to_local_time/1</seealso> to
+        get calendar time. Using the calendar time together with the <c>MicroSecs</c> part of the return
+        tuple from this function allows you to log timestamps in high resolution and consistent with the
+        time in the rest of the operating system.</p>
+      <p>Example of code formatting a string in the format &quot;DD Mon YYYY HH:MM:SS.mmmmmm&quot;, where
+         DD is the day of month, Mon is the textual month name, YYYY is the year, HH:MM:SS is the time and
+         mmmmmm is the microseconds in six positions:</p>
 <code>
 -module(print_time).
 -export([format_utc_timestamp/0]).
@@ -155,6 +203,9 @@ format_utc_timestamp() ->
 1> <input>io:format("~s~n",[print_time:format_utc_timestamp()]).</input>
 29 Apr 2009  9:55:30.051711
 </pre>
+       <p>OS system time can also be retreived by
+	<c><seealso marker="#system_time/0"><c>os:system_time/0</c></seealso></c>,
+	and <seealso marker="#system_time/1"><c>os:system_time/1</c></seealso>.</p>
       </desc>
     </func>
     <func>
diff --git a/lib/kernel/doc/src/pg2.xml b/lib/kernel/doc/src/pg2.xml
index 5eb63c1ef6..35cf85470a 100644
--- a/lib/kernel/doc/src/pg2.xml
+++ b/lib/kernel/doc/src/pg2.xml
@@ -34,11 +34,8 @@
   <module>pg2</module>
   <modulesummary>Distributed Named Process Groups</modulesummary>
   <description>
-    <p>This module implements process groups. The groups in this
-      module differ from the groups in the module <c>pg</c> in several
-      ways. In <c>pg</c>, each message is sent to all members in the
-      group. In this module, each message may be sent to one, some, or
-      all members.
+    <p>This module implements process groups. Each message may be sent
+      to one, some, or all members of the group.
       </p>
     <p>A group of processes can be accessed by a common name. For
       example, if there is a group named <c>foobar</c>, there can be a
@@ -160,8 +157,7 @@
 
   <section>
     <title>See Also</title>
-    <p><seealso marker="kernel_app">kernel(6)</seealso>, 
-       <seealso marker="stdlib:pg">pg(3)</seealso></p>
+    <p><seealso marker="kernel_app">kernel(6)</seealso></p>
   </section>
 </erlref>
 
diff --git a/lib/kernel/src/application_controller.erl b/lib/kernel/src/application_controller.erl
index 6635885aaf..a1a99a4e18 100644
--- a/lib/kernel/src/application_controller.erl
+++ b/lib/kernel/src/application_controller.erl
@@ -490,7 +490,8 @@ init(Init, Kernel) ->
 	    %% called during start-up of any app.
 	    case check_conf_data(ConfData) of
 		ok ->
-		    _ = ets:new(ac_tab, [set, public, named_table]),
+		    _ = ets:new(ac_tab, [set, public, named_table,
+                                         {read_concurrency,true}]),
 		    S = #state{conf_data = ConfData},
 		    {ok, KAppl} = make_appl(Kernel),
 		    case catch load(S, KAppl) of
diff --git a/lib/kernel/src/auth.erl b/lib/kernel/src/auth.erl
index eda35147d3..dbc486bee1 100644
--- a/lib/kernel/src/auth.erl
+++ b/lib/kernel/src/auth.erl
@@ -370,8 +370,8 @@ check_cookie1([], Result) ->
 %% Creates a new, random cookie. 
    
 create_cookie(Name) ->
-    {_, S1, S2} = now(),
-    Seed = S2*10000+S1,
+    Seed = abs(erlang:monotonic_time()
+	       bxor erlang:unique_integer()),
     Cookie = random_cookie(20, Seed, []),
     case file:open(Name, [write, raw]) of
 	{ok, File} ->
diff --git a/lib/kernel/src/code.erl b/lib/kernel/src/code.erl
index 0eda558ed5..65045666ec 100644
--- a/lib/kernel/src/code.erl
+++ b/lib/kernel/src/code.erl
@@ -107,7 +107,7 @@ is_module_native(_) ->
 -spec make_stub_module(Module, Beam, Info) -> Module when
       Module :: module(),
       Beam :: binary(),
-      Info :: {list(), list()}.
+      Info :: {list(), list(), binary()}.
 
 make_stub_module(_, _, _) ->
     erlang:nif_error(undef).
@@ -339,7 +339,7 @@ do_start(Flags) ->
 			    ok
 		    end,
 		    %% Quietly load native code for all modules loaded so far
-		    catch load_native_code_for_all_loaded(),
+		    load_native_code_for_all_loaded(),
 		    Ok2;
 		Other ->
 		    Other
@@ -550,18 +550,43 @@ has_ext(Ext, Extlen, File) ->
 	_ -> false
     end.
 
+%%%
+%%% Silently load native code for all modules loaded so far.
+%%%
+
 -spec load_native_code_for_all_loaded() -> ok.
 load_native_code_for_all_loaded() ->
     Architecture = erlang:system_info(hipe_architecture),
-    ChunkName = hipe_unified_loader:chunk_name(Architecture),
-    lists:foreach(fun({Module, BeamFilename}) ->
-        case code:is_module_native(Module) of
-            false ->
-                case beam_lib:chunks(BeamFilename, [ChunkName]) of
-                    {ok,{_,[{_,Bin}]}} when is_binary(Bin) ->
-                        load_native_partial(Module, Bin);
-                    {error, beam_lib, _} -> ok
-                end;
-            true -> ok
-        end
-    end, all_loaded()).
+    try hipe_unified_loader:chunk_name(Architecture) of
+	ChunkTag ->
+	    Loaded = all_loaded(),
+	    _ = spawn(fun() -> load_all_native(Loaded, ChunkTag) end),
+	    ok
+    catch
+	_:_ ->
+	    ok
+    end.
+
+load_all_native(Loaded, ChunkTag) ->
+    catch load_all_native_1(Loaded, ChunkTag).
+
+load_all_native_1([{_,preloaded}|T], ChunkTag) ->
+    load_all_native_1(T, ChunkTag);
+load_all_native_1([{Mod,BeamFilename}|T], ChunkTag) ->
+    case code:is_module_native(Mod) of
+	false ->
+	    %% prim_file is faster than file and the file server may
+	    %% not be started yet.
+	    {ok,Beam} = prim_file:read_file(BeamFilename),
+	    case code:get_chunk(Beam, ChunkTag) of
+		undefined ->
+		    ok;
+		NativeCode when is_binary(NativeCode) ->
+		    _ = load_native_partial(Mod, NativeCode),
+		    ok
+	    end;
+	true -> ok
+    end,
+    load_all_native_1(T, ChunkTag);
+load_all_native_1([], _) ->
+    ok.
diff --git a/lib/kernel/src/dist_util.erl b/lib/kernel/src/dist_util.erl
index b127fe2e33..6b510bd0c3 100644
--- a/lib/kernel/src/dist_util.erl
+++ b/lib/kernel/src/dist_util.erl
@@ -298,7 +298,7 @@ shutdown(_Module, _Line, _Data, Reason) ->
     exit(Reason).
 %% Use this line to debug connection.  
 %% Set net_kernel verbose = 1 as well.
-%%    exit({Reason, ?MODULE, _Line, _Data, erlang:now()}).
+%%    exit({Reason, ?MODULE, _Line, _Data, erlang:timestamp()}).
 
 
 flush_down() ->
@@ -373,7 +373,9 @@ gen_digest(Challenge, Cookie) when is_integer(Challenge), is_atom(Cookie) ->
 %% gen_challenge() returns a "random" number
 %% ---------------------------------------------------------------
 gen_challenge() ->
-    {A,B,C} = erlang:now(),
+    A = erlang:phash2([erlang:node()]),
+    B = erlang:monotonic_time(),
+    C = erlang:unique_integer(),
     {D,_}   = erlang:statistics(reductions),
     {E,_}   = erlang:statistics(runtime),
     {F,_}   = erlang:statistics(wall_clock),
diff --git a/lib/kernel/src/erts_debug.erl b/lib/kernel/src/erts_debug.erl
index ef605d0bfe..8f81fcf825 100644
--- a/lib/kernel/src/erts_debug.erl
+++ b/lib/kernel/src/erts_debug.erl
@@ -20,7 +20,7 @@
 
 %% Low-level debugging support. EXPERIMENTAL!
 
--export([size/1,df/1,df/2,df/3]).
+-export([size/1,df/1,df/2,df/3,ic/1]).
 
 %% This module contains the following *experimental* BIFs:
 %%   disassemble/1
@@ -33,7 +33,7 @@
 -export([breakpoint/2, disassemble/1, display/1, dist_ext_to_term/2,
          dump_monitors/1, dump_links/1, flat_size/1,
          get_internal_state/1, instructions/0, lock_counters/1,
-         same/2, set_internal_state/2]).
+         map_info/1, same/2, set_internal_state/2]).
 
 -spec breakpoint(MFA, Flag) -> non_neg_integer() when
       MFA :: {Module :: module(),
@@ -114,6 +114,19 @@ get_internal_state(_) ->
 instructions() ->
     erlang:nif_error(undef).
 
+-spec ic(F) -> Result when
+      F :: function(),
+      Result :: term().
+
+ic(F) when is_function(F) ->
+    Is0 = erlang:system_info(instruction_counts),
+    R   = F(),
+    Is1 = erlang:system_info(instruction_counts),
+    Is  = lists:keysort(2,[{I,C1 - C0}||{{I,C1},{I,C0}} <- lists:zip(Is1,Is0)]),
+    _   = [io:format("~12w ~w~n", [C,I])||{I,C}<-Is],
+    io:format("Total: ~w~n",[lists:sum([C||{_I,C}<-Is])]),
+    R.
+
 -spec lock_counters(info) -> term();
                       (clear) -> ok;
                       ({copy_save, boolean()}) -> boolean();
@@ -164,8 +177,10 @@ set_internal_state(_, _) ->
 
 -spec size(term()) -> non_neg_integer().
 
+-record(s, {seen, maps}).
+
 size(Term) ->
-    {Sum,_} = size(Term, gb_trees:empty(), 0),
+    {Sum,_} = size(Term, #s{seen=gb_trees:empty(),maps=[]}, 0),
     Sum.
 
 size([H|T]=Term, Seen0, Sum0) ->
@@ -209,10 +224,24 @@ tuple_size(I, Sz, Tuple, Seen0, Sum0) ->
     tuple_size(I+1, Sz, Tuple, Seen, Sum).
 
 map_size(Map,Seen0,Sum0) ->
-    Kt = erts_internal:map_to_tuple_keys(Map),
-    Vs = maps:values(Map),
-    {Sum1,Seen1} = size(Kt,Seen0,Sum0),
-    fold_size(Vs,Seen1,Sum1+length(Vs)+3).
+    %% Danger:
+    %% The internal nodes from erts_internal:map_hashmap_children/1
+    %% is not allowed to leak anywhere. They are only allowed in
+    %% containers (cons cells and tuples, not maps), in gc and
+    %% in erts_debug:same/2
+    case erts_internal:map_type(Map) of
+        flatmap ->
+            Kt = erts_internal:map_to_tuple_keys(Map),
+            Vs = maps:values(Map),
+            {Sum1,Seen1} = size(Kt,Seen0,Sum0),
+            fold_size(Vs,Seen1,Sum1+length(Vs)+3);
+        hashmap ->
+            Cs = erts_internal:map_hashmap_children(Map),
+            fold_size(Cs,Seen0,Sum0+length(Cs)+2);
+        hashmap_node ->
+            Cs = erts_internal:map_hashmap_children(Map),
+            fold_size(Cs,Seen0,Sum0+length(Cs)+1)
+    end.
 
 fun_size(Fun, Seen, Sum) ->
     case erlang:fun_info(Fun, type) of
@@ -229,13 +258,18 @@ fold_size([H|T], Seen0, Sum0) ->
     fold_size(T, Seen, Sum);
 fold_size([], Seen, Sum) -> {Sum,Seen}.
 
-remember_term(Term, Seen) ->
-    case gb_trees:lookup(Term, Seen) of
-	none -> gb_trees:insert(Term, [Term], Seen);
+remember_term(Term, #s{maps=Ms}=S) when is_map(Term) ->
+    case is_term_seen(Term, Ms) of
+        false -> S#s{maps=[Term|Ms]};
+        true  -> seen
+    end;
+remember_term(Term, #s{seen=T}=S) ->
+    case gb_trees:lookup(Term,T) of
+	none -> S#s{seen=gb_trees:insert(Term,[Term],T)};
 	{value,Terms} ->
 	    case is_term_seen(Term, Terms) of
-		false -> gb_trees:update(Term, [Term|Terms], Seen);
-		true -> seen
+		false -> S#s{seen=gb_trees:update(Term,[Term|Terms],T)};
+		true  -> seen
 	    end
     end.
 
@@ -313,3 +347,9 @@ cont_dis(File, {Addr,Str,MFA}, MFA) ->
     io:put_chars(File, binary_to_list(Str)),
     cont_dis(File, erts_debug:disassemble(Addr), MFA);
 cont_dis(_, {_,_,_}, _) -> ok.
+
+-spec map_info(Map) -> list() when
+      Map :: map().
+
+map_info(_) ->
+    erlang:nif_error(undef).
diff --git a/lib/kernel/src/file.erl b/lib/kernel/src/file.erl
index 3d6665a36a..b6b153ae56 100644
--- a/lib/kernel/src/file.erl
+++ b/lib/kernel/src/file.erl
@@ -445,21 +445,15 @@ open(Item, ModeList) when is_list(ModeList) ->
     case lists:member(raw, ModeList) of
 	%% Raw file, use ?PRIM_FILE to handle this file
 	true ->
-	    %% check if raw file mode is disabled
-	    case catch application:get_env(kernel, raw_files) of
-		{ok,false} ->
-		    open(Item, lists:delete(raw, ModeList));
-		_ ->				% undefined | {ok,true}
-		    Args = [file_name(Item) | ModeList],
-		    case check_args(Args) of
-			ok ->
-			    [FileName | _] = Args,
-			    %% We rely on the returned Handle (in {ok, Handle})
-			    %% being a pid() or a #file_descriptor{}
-			    ?PRIM_FILE:open(FileName, ModeList);
-			Error ->
-			    Error
-		    end
+            Args = [file_name(Item) | ModeList],
+            case check_args(Args) of
+                ok ->
+                    [FileName | _] = Args,
+                    %% We rely on the returned Handle (in {ok, Handle})
+                    %% being a pid() or a #file_descriptor{}
+                    ?PRIM_FILE:open(FileName, ModeList);
+                Error ->
+                    Error
 	    end;
 	false ->
 	    case lists:member(ram, ModeList) of
diff --git a/lib/kernel/src/file_io_server.erl b/lib/kernel/src/file_io_server.erl
index 0e9ff5bc0f..7d30e7e1d8 100644
--- a/lib/kernel/src/file_io_server.erl
+++ b/lib/kernel/src/file_io_server.erl
@@ -307,18 +307,18 @@ io_request({get_chars,Enc,_Prompt,N},
 	   #state{}=State) ->
     get_chars(N, Enc, State);
 
-%%
-%% This optimization gives almost nothing - needs more working... 
-%% Disabled for now. /PaN
-%%
-%% io_request({get_line,Enc,_Prompt}, 
-%%  	   #state{unic=latin1}=State) ->
-%%     get_line(Enc,State);
-
-io_request({get_line,Enc,_Prompt}, 
-	   #state{}=State) ->
-    get_chars(io_lib, collect_line, [], Enc, State);
-
+io_request({get_line,OutEnc,_Prompt}, #state{buf=Buf, read_mode=Mode, unic=InEnc} = State0) ->
+    try
+	%% Minimize the encoding conversions
+	WorkEnc = case InEnc of
+		      {_,_} -> OutEnc; %% utf16 or utf32
+		      _ -> InEnc %% Byte oriented utf8 or latin1
+		  end,
+	{Res, State} = get_line(start, convert_enc(Buf, InEnc, WorkEnc), WorkEnc, State0),
+	{reply, cast(Res, Mode, WorkEnc, OutEnc), State}
+    catch exit:ExError ->
+	    {stop,ExError,{error,ExError},State0#state{buf= <<>>}}
+    end;
 
 io_request({setopts, Opts}, 
 	   #state{}=State) when is_list(Opts) ->
@@ -386,56 +386,40 @@ put_chars(Chars, InEncoding, #state{handle=Handle, unic=OutEncoding}=State) ->
 	    {stop,normal,{error,{no_translation, InEncoding, OutEncoding}},State}
     end.
 
-%%
-%% Process the I/O request get_line for latin1 encoding of file specially
-%% Unfortunately this function gives almost nothing, it needs more work
-%% I disable it for now /PaN
-%%
-%% srch(<<>>,_,_) ->
-%%     nomatch;
-%% srch(<<X:8,_/binary>>,X,N) ->
-%%     {match,N};
-%% srch(<<_:8,T/binary>>,X,N) ->
-%%     srch(T,X,N+1).
-%% get_line(OutEnc, #state{handle=Handle,buf = <<>>,unic=latin1}=State) ->
-%%     case ?PRIM_FILE:read(Handle,?READ_SIZE_BINARY) of
-%% 	{ok, B} ->
-%% 	    get_line(OutEnc, State#state{buf = B});
-%% 	eof ->
-%% 	    {reply,eof,State};
-%% 	{error,Reason}=Error ->
-%% 	    {stop,Reason,Error,State}
-%%     end;
-%% get_line(OutEnc, #state{handle=Handle,buf=Buf,read_mode=ReadMode,unic=latin1}=State) ->
-%%     case srch(Buf,$\n,0) of
-%% 	nomatch ->
-%% 	    case ?PRIM_FILE:read(Handle,?READ_SIZE_BINARY) of
-%% 		{ok, B} ->
-%% 		    get_line(OutEnc,State#state{buf = <<Buf/binary,B/binary>>});
-%% 		eof ->
-%% 		    std_reply(cast(Buf, ReadMode,latin1,OutEnc), State);
-%% 		{error,Reason}=Error ->
-%% 		    {stop,Reason,Error,State#state{buf= <<>>}}
-%% 	    end;
-%% 	{match,Pos} when Pos >= 1->
-%% 	    PosP1 = Pos + 1,
-%% 	    <<Res0:PosP1/binary,NewBuf/binary>> = Buf,
-%% 	    PosM1 = Pos - 1,
-%% 	    Res = case Res0 of
-%% 		      <<Chomped:PosM1/binary,$\r:8,$\n:8>> ->
-%% 			  cat(Chomped, <<"\n">>, ReadMode,latin1,OutEnc);
-%% 		      _Other ->
-%% 			  cast(Res0, ReadMode,latin1,OutEnc)
-%% 		  end,
-%% 	    {reply,Res,State#state{buf=NewBuf}};
-%% 	 {match,Pos} ->
-%% 	    PosP1 = Pos + 1,
-%% 	    <<Res:PosP1/binary,NewBuf/binary>> = Buf,
-%% 	    {reply,Res,State#state{buf=NewBuf}}
-%%     end;
-%% get_line(_, #state{}=State) ->
-%%     {error,{error,get_line},State}.
-	    
+get_line(S, {<<>>, Cont}, OutEnc,
+	 #state{handle=Handle, read_mode=Mode, unic=InEnc}=State) ->
+    case ?PRIM_FILE:read(Handle, read_size(Mode)) of
+	{ok,Bin} ->
+	    get_line(S, convert_enc([Cont, Bin], InEnc, OutEnc), OutEnc, State);
+	eof ->
+	    get_line(S, {eof, Cont}, OutEnc, State);
+	{error,Reason}=Error ->
+	    {stop,Reason,Error,State}
+    end;
+get_line(S0, {Buf, BCont}, OutEnc, #state{unic=InEnc}=State) ->
+    case io_lib:collect_line(S0, Buf, OutEnc, []) of
+	{stop, Result, Cont0} ->
+	    %% Convert both buffers back to file InEnc encoding
+	    {Cont, <<>>} = convert_enc(Cont0, OutEnc, InEnc),
+	    {Result, State#state{buf=cast_binary([Cont, BCont])}};
+	S ->
+	    get_line(S, {<<>>, BCont}, OutEnc, State)
+    end.
+
+convert_enc(Bins, Enc, Enc) ->
+    {cast_binary(Bins), <<>>};
+convert_enc(eof, _, _) ->
+    {<<>>, <<>>};
+convert_enc(Bin, InEnc, OutEnc) ->
+    case unicode:characters_to_binary(Bin, InEnc, OutEnc) of
+	Res when is_binary(Res) ->
+	    {Res, <<>>};
+	{incomplete, Res, Cont} ->
+	    {Res, Cont};
+	{error, _, _} ->
+	    exit({no_translation, InEnc, OutEnc})
+    end.
+
 %%    
 %% Process the I/O request get_chars
 %%
@@ -640,8 +624,6 @@ invalid_unicode_error(Mod, Func, XtraArg, S) ->
 
 %% Convert error code to make it look as before
 err_func(io_lib, get_until, {_,F,_}) ->
-    F;
-err_func(_, F, _) ->
     F.
 
 
@@ -713,6 +695,8 @@ cat(B1, B2, list, latin1,_) ->
     binary_to_list(B1)++binary_to_list(B2).
 
 %% Cast binary to list or binary
+cast(eof, _, _, _) ->
+    eof;
 cast(B, binary, latin1, latin1) ->
     B;
 cast(B, binary, InEncoding, OutEncoding) ->
@@ -736,6 +720,8 @@ cast(B, list, InEncoding, OutEncoding) ->
 %% Convert buffer to binary
 cast_binary(Binary) when is_binary(Binary) ->
     Binary;
+cast_binary([<<>>|List]) ->
+    cast_binary(List);
 cast_binary(List) when is_list(List) ->
     list_to_binary(List);
 cast_binary(_EOF) ->
diff --git a/lib/kernel/src/global.erl b/lib/kernel/src/global.erl
index 0a4edea452..6c36d417a2 100644
--- a/lib/kernel/src/global.erl
+++ b/lib/kernel/src/global.erl
@@ -881,11 +881,12 @@ handle_info({nodeup, Node}, S0) when S0#state.connect_all ->
 	false ->
 	    resend_pre_connect(Node),
 
-	    %% now() is used as a tag to separate different synch sessions
+	    %% erlang:unique_integer([monotonic]) is used as a tag to
+	    %% separate different synch sessions
 	    %% from each others. Global could be confused at bursty nodeups
 	    %% because it couldn't separate the messages between the different
 	    %% synch sessions started by a nodeup.
-	    MyTag = now(),
+	    MyTag = erlang:unique_integer([monotonic]),
 	    put({sync_tag_my, Node}, MyTag),
             ?trace({sending_nodeup_to_locker, {node,Node},{mytag,MyTag}}),
 	    S1#state.the_locker ! {nodeup, Node, MyTag},
@@ -1772,8 +1773,8 @@ update_locker_known(Upd, S) ->
     S#multi{known = Known, the_boss = TheBoss}.
 
 random_element(L) ->
-    {A,B,C} = now(),
-    E = (A+B+C) rem length(L),
+    E = abs(erlang:monotonic_time()
+		bxor erlang:unique_integer()) rem length(L),
     lists:nth(E+1, L).
 
 exclude_known(Others, Known) ->
@@ -2072,9 +2073,10 @@ random_sleep(Times) ->
     end,
     case get(random_seed) of
 	undefined ->
-	    {A1, A2, A3} = now(),
-	    _ = random:seed(A1, A2, A3 + erlang:phash(node(), 100000)),
-            ok;
+	    _ = random:seed(erlang:phash2([erlang:node()]),
+			    erlang:monotonic_time(),
+			    erlang:unique_integer()),
+	    ok;
 	_ -> ok
     end,
     %% First time 1/4 seconds, then doubling each time up to 8 seconds max.
@@ -2106,7 +2108,7 @@ trace_message(S, M, X) ->
     S#state{trace = [trace_message(M, X) | S#state.trace]}.
 
 trace_message(M, X) ->
-    {node(), now(), M, nodes(), X}.
+    {node(), erlang:timestamp(), M, nodes(), X}.
 
 %%-----------------------------------------------------------------
 %% Each sync process corresponds to one call to sync. Each such
diff --git a/lib/kernel/src/group.erl b/lib/kernel/src/group.erl
index b36dbf33dd..046885f885 100644
--- a/lib/kernel/src/group.erl
+++ b/lib/kernel/src/group.erl
@@ -111,8 +111,13 @@ start_shell1(Fun) ->
 server_loop(Drv, Shell, Buf0) ->
     receive
 	{io_request,From,ReplyAs,Req} when is_pid(From) ->
-	    Buf = io_request(Req, From, ReplyAs, Drv, Buf0),
-	    server_loop(Drv, Shell, Buf);
+            %% This io_request may cause a transition to a couple of
+            %% selective receive loops elsewhere in this module.
+            Buf = io_request(Req, From, ReplyAs, Drv, Buf0),
+            server_loop(Drv, Shell, Buf);
+        {reply,{{From,ReplyAs},Reply}} ->
+            io_reply(From, ReplyAs, Reply),
+	    server_loop(Drv, Shell, Buf0);
 	{driver_id,ReplyTo} ->
 	    ReplyTo ! {self(),driver_id,Drv},
 	    server_loop(Drv, Shell, Buf0);
@@ -172,10 +177,13 @@ set_unicode_state(Drv,Bool) ->
 			   
 
 io_request(Req, From, ReplyAs, Drv, Buf0) ->
-    case io_request(Req, Drv, Buf0) of
+    case io_request(Req, Drv, {From,ReplyAs}, Buf0) of
 	{ok,Reply,Buf} ->
 	    io_reply(From, ReplyAs, Reply),
 	    Buf;
+        {noreply,Buf} ->
+            %% We expect a {reply,_} message from the Drv when request is done
+            Buf;
 	{error,Reply,Buf} ->
 	    io_reply(From, ReplyAs, Reply),
 	    Buf;
@@ -196,78 +204,85 @@ io_request(Req, From, ReplyAs, Drv, Buf0) ->
 %% io_request({put_chars,unicode,Binary}, Drv, Buf) when is_binary(Binary) -> 
 %%     send_drv(Drv, {put_chars,Binary}),
 %%     {ok,ok,Buf};
-io_request({put_chars,unicode,Chars}, Drv, Buf) ->
+%%
+%% These put requests have to be synchronous to the driver as otherwise
+%% there is no guarantee that the data has actually been printed.
+io_request({put_chars,unicode,Chars}, Drv, From, Buf) ->
     case catch unicode:characters_to_binary(Chars,utf8) of
 	Binary when is_binary(Binary) ->
-	    send_drv(Drv, {put_chars, unicode, Binary}),
-	    {ok,ok,Buf};
+	    send_drv(Drv, {put_chars_sync, unicode, Binary, {From,ok}}),
+	    {noreply,Buf};
 	_ ->
 	    {error,{error,{put_chars, unicode,Chars}},Buf}
     end;
-io_request({put_chars,unicode,M,F,As}, Drv, Buf) ->
+io_request({put_chars,unicode,M,F,As}, Drv, From, Buf) ->
     case catch apply(M, F, As) of
 	Binary when is_binary(Binary) ->
-	    send_drv(Drv, {put_chars, unicode,Binary}),
-	    {ok,ok,Buf};
+	    send_drv(Drv, {put_chars_sync, unicode, Binary, {From,ok}}),
+	    {noreply,Buf};
 	Chars ->
 	    case catch unicode:characters_to_binary(Chars,utf8) of
 		B when is_binary(B) ->
-		    send_drv(Drv, {put_chars, unicode,B}),
-		    {ok,ok,Buf};
+		    send_drv(Drv, {put_chars_sync, unicode, B, {From,ok}}),
+		    {noreply,Buf};
 		_ ->
 		    {error,{error,F},Buf}
 	    end
     end;
-io_request({put_chars,latin1,Binary}, Drv, Buf) when is_binary(Binary) -> 
-    send_drv(Drv, {put_chars, unicode,unicode:characters_to_binary(Binary,latin1)}),
-    {ok,ok,Buf};
-io_request({put_chars,latin1,Chars}, Drv, Buf) ->
+io_request({put_chars,latin1,Binary}, Drv, From, Buf) when is_binary(Binary) -> 
+    send_drv(Drv, {put_chars_sync, unicode,
+                   unicode:characters_to_binary(Binary,latin1),
+                   {From,ok}}),
+    {noreply,Buf};
+io_request({put_chars,latin1,Chars}, Drv, From, Buf) ->
     case catch unicode:characters_to_binary(Chars,latin1) of
 	Binary when is_binary(Binary) ->
-	    send_drv(Drv, {put_chars, unicode,Binary}),
-	    {ok,ok,Buf};
+	    send_drv(Drv, {put_chars_sync, unicode, Binary, {From,ok}}),
+	    {noreply,Buf};
 	_ ->
 	    {error,{error,{put_chars,latin1,Chars}},Buf}
     end;
-io_request({put_chars,latin1,M,F,As}, Drv, Buf) ->
+io_request({put_chars,latin1,M,F,As}, Drv, From, Buf) ->
     case catch apply(M, F, As) of
 	Binary when is_binary(Binary) ->
-	    send_drv(Drv, {put_chars, unicode,unicode:characters_to_binary(Binary,latin1)}),
-	    {ok,ok,Buf};
+	    send_drv(Drv, {put_chars_sync, unicode,
+                           unicode:characters_to_binary(Binary,latin1),
+                           {From,ok}}),
+	    {noreply,Buf};
 	Chars ->
 	    case catch unicode:characters_to_binary(Chars,latin1) of
 		B when is_binary(B) ->
-		    send_drv(Drv, {put_chars, unicode,B}),
-		    {ok,ok,Buf};
+		    send_drv(Drv, {put_chars_sync, unicode, B, {From,ok}}),
+		    {noreply,Buf};
 		_ ->
 		    {error,{error,F},Buf}
 	    end
     end;
 
-io_request({get_chars,Encoding,Prompt,N}, Drv, Buf) ->
+io_request({get_chars,Encoding,Prompt,N}, Drv, _From, Buf) ->
     get_chars(Prompt, io_lib, collect_chars, N, Drv, Buf, Encoding);
-io_request({get_line,Encoding,Prompt}, Drv, Buf) ->
+io_request({get_line,Encoding,Prompt}, Drv, _From, Buf) ->
     get_chars(Prompt, io_lib, collect_line, [], Drv, Buf, Encoding);
-io_request({get_until,Encoding, Prompt,M,F,As}, Drv, Buf) ->
+io_request({get_until,Encoding, Prompt,M,F,As}, Drv, _From, Buf) ->
     get_chars(Prompt, io_lib, get_until, {M,F,As}, Drv, Buf, Encoding);
-io_request({get_password,_Encoding},Drv,Buf) ->
+io_request({get_password,_Encoding},Drv,_From,Buf) ->
     get_password_chars(Drv, Buf);
-io_request({setopts,Opts}, Drv, Buf) when is_list(Opts) ->
+io_request({setopts,Opts}, Drv, _From, Buf) when is_list(Opts) ->
     setopts(Opts, Drv, Buf);
-io_request(getopts, Drv, Buf) ->
+io_request(getopts, Drv, _From, Buf) ->
     getopts(Drv, Buf);
-io_request({requests,Reqs}, Drv, Buf) ->
-    io_requests(Reqs, {ok,ok,Buf}, Drv);
+io_request({requests,Reqs}, Drv, From, Buf) ->
+    io_requests(Reqs, {ok,ok,Buf}, From, Drv);
 
 %% New in R12
-io_request({get_geometry,columns},Drv,Buf) ->
+io_request({get_geometry,columns},Drv,_From,Buf) ->
     case get_tty_geometry(Drv) of
 	{W,_H} ->
 	    {ok,W,Buf};
 	_ ->
 	    {error,{error,enotsup},Buf}
     end;
-io_request({get_geometry,rows},Drv,Buf) ->
+io_request({get_geometry,rows},Drv,_From,Buf) ->
     case get_tty_geometry(Drv) of
 	{_W,H} ->
 	    {ok,H,Buf};
@@ -276,38 +291,49 @@ io_request({get_geometry,rows},Drv,Buf) ->
     end;
 
 %% BC with pre-R13
-io_request({put_chars,Chars}, Drv, Buf) ->
-    io_request({put_chars,latin1,Chars}, Drv, Buf);
-io_request({put_chars,M,F,As}, Drv, Buf) ->
-    io_request({put_chars,latin1,M,F,As}, Drv, Buf);
-io_request({get_chars,Prompt,N}, Drv, Buf) ->
-    io_request({get_chars,latin1,Prompt,N}, Drv, Buf);
-io_request({get_line,Prompt}, Drv, Buf) ->
-    io_request({get_line,latin1,Prompt}, Drv, Buf);
-io_request({get_until, Prompt,M,F,As}, Drv, Buf) ->
-    io_request({get_until,latin1, Prompt,M,F,As}, Drv, Buf);
-io_request(get_password,Drv,Buf) ->
-    io_request({get_password,latin1},Drv,Buf);
-
-
-
-io_request(_, _Drv, Buf) ->
+io_request({put_chars,Chars}, Drv, From, Buf) ->
+    io_request({put_chars,latin1,Chars}, Drv, From, Buf);
+io_request({put_chars,M,F,As}, Drv, From, Buf) ->
+    io_request({put_chars,latin1,M,F,As}, Drv, From, Buf);
+io_request({get_chars,Prompt,N}, Drv, From, Buf) ->
+    io_request({get_chars,latin1,Prompt,N}, Drv, From, Buf);
+io_request({get_line,Prompt}, Drv, From, Buf) ->
+    io_request({get_line,latin1,Prompt}, Drv, From, Buf);
+io_request({get_until, Prompt,M,F,As}, Drv, From, Buf) ->
+    io_request({get_until,latin1, Prompt,M,F,As}, Drv, From, Buf);
+io_request(get_password,Drv,From,Buf) ->
+    io_request({get_password,latin1},Drv,From,Buf);
+
+
+
+io_request(_, _Drv, _From, Buf) ->
     {error,{error,request},Buf}.
 
-%% Status = io_requests(RequestList, PrevStat, Drv)
-%%  Process a list of output requests as long as the previous status is 'ok'.
-
-io_requests([R|Rs], {ok,ok,Buf}, Drv) ->
-    io_requests(Rs, io_request(R, Drv, Buf), Drv);
-io_requests([_|_], Error, _Drv) ->
+%% Status = io_requests(RequestList, PrevStat, From, Drv)
+%%  Process a list of output requests as long as
+%%  the previous status is 'ok' or noreply.
+%%
+%%  We use undefined as the From for all but the last request
+%%  in order to discards acknowledgements from those requests.
+%%
+io_requests([R|Rs], {noreply,Buf}, From, Drv) ->
+    ReqFrom = if Rs =:= [] -> From; true -> undefined end,
+    io_requests(Rs, io_request(R, Drv, ReqFrom, Buf), From, Drv);
+io_requests([R|Rs], {ok,ok,Buf}, From, Drv) ->
+    ReqFrom = if Rs =:= [] -> From; true -> undefined end,
+    io_requests(Rs, io_request(R, Drv, ReqFrom, Buf), From, Drv);
+io_requests([_|_], Error, _From, _Drv) ->
     Error;
-io_requests([], Stat, _) ->
+io_requests([], Stat, _From, _) ->
     Stat.
 
 %% io_reply(From, ReplyAs, Reply)
 %%  The function for sending i/o command acknowledgement.
 %%  The ACK contains the return value.
 
+io_reply(undefined, _ReplyAs, _Reply) ->
+    %% Ignore these replies as they are generated from io_requests/4.
+    ok;
 io_reply(From, ReplyAs, Reply) ->
     From ! {io_reply,ReplyAs,Reply},
     ok.
@@ -619,6 +645,10 @@ more_data(What, Cont0, Drv, Ls, Encoding) ->
 	    io_request(Req, From, ReplyAs, Drv, []), %WRONG!!!
 	    send_drv_reqs(Drv, edlin:redraw_line(Cont)),
 	    get_line1({more_chars,Cont,[]}, Drv, Ls, Encoding);
+        {reply,{{From,ReplyAs},Reply}} ->
+            %% We take care of replies from puts here as well
+            io_reply(From, ReplyAs, Reply),
+            more_data(What, Cont0, Drv, Ls, Encoding);
 	{'EXIT',Drv,interrupt} ->
 	    interrupted;
 	{'EXIT',Drv,_} ->
@@ -641,6 +671,10 @@ get_line_echo_off1({Chars,[]}, Drv) ->
 	{io_request,From,ReplyAs,Req} when is_pid(From) ->
 	    io_request(Req, From, ReplyAs, Drv, []),
 	    get_line_echo_off1({Chars,[]}, Drv);
+        {reply,{{From,ReplyAs},Reply}} when From =/= undefined ->
+            %% We take care of replies from puts here as well
+            io_reply(From, ReplyAs, Reply),
+            get_line_echo_off1({Chars,[]},Drv);
 	{'EXIT',Drv,interrupt} ->
 	    interrupted;
 	{'EXIT',Drv,_} ->
@@ -790,6 +824,10 @@ get_password1({Chars,[]}, Drv) ->
 	    %% set to []. But do we expect anything but plain output?
 
 	    get_password1({Chars, []}, Drv);
+        {reply,{{From,ReplyAs},Reply}} ->
+            %% We take care of replies from puts here as well
+            io_reply(From, ReplyAs, Reply),
+            get_password1({Chars, []},Drv);
 	{'EXIT',Drv,interrupt} ->
 	    interrupted;
 	{'EXIT',Drv,_} ->
diff --git a/lib/kernel/src/heart.erl b/lib/kernel/src/heart.erl
index daed6dd488..77cd5433de 100644
--- a/lib/kernel/src/heart.erl
+++ b/lib/kernel/src/heart.erl
@@ -25,7 +25,7 @@
 %%%--------------------------------------------------------------------
 %%% This is a rewrite of pre_heart from BS.3.
 %%%
-%%% The purpose of this process-module is to act as an supervisor
+%%% The purpose of this process-module is to act as a supervisor
 %%% of the entire erlang-system. This 'heart' beats with a frequence
 %%% satisfying an external port program *not* reboot the entire
 %%% system. If however the erlang-emulator would hang, a reboot is
diff --git a/lib/kernel/src/hipe_unified_loader.erl b/lib/kernel/src/hipe_unified_loader.erl
index e5928c7b63..49d4a8fe54 100644
--- a/lib/kernel/src/hipe_unified_loader.erl
+++ b/lib/kernel/src/hipe_unified_loader.erl
@@ -194,6 +194,7 @@ load_common(Mod, Bin, Beam, OldReferencesToPatch) ->
    CodeSize,  CodeBinary,  Refs,
    0,[] % ColdSize, CRrefs
   ] = binary_to_term(Bin),
+  MD5 = erlang:md5(Bin), % use md5 of actual running code for module_info
   ?debug_msg("***** ErLLVM *****~nVersion: ~s~nCheckSum: ~w~nConstAlign: ~w~n" ++
     "ConstSize: ~w~nConstMap: ~w~nLabelMap: ~w~nExportMap ~w~nRefs ~w~n",
     [Version, CheckSum, ConstAlign, ConstSize, ConstMap, LabelMap, ExportMap,
@@ -254,7 +255,8 @@ load_common(Mod, Bin, Beam, OldReferencesToPatch) ->
 	  AddressesOfClosuresToPatch =
 	    calculate_addresses(ClosurePatches, CodeAddress, Addresses),
 	  export_funs(Addresses),
-	  export_funs(Mod, BeamBinary, Addresses, AddressesOfClosuresToPatch)
+	  export_funs(Mod, MD5, BeamBinary,
+                      Addresses, AddressesOfClosuresToPatch)
       end,
       %% Redirect references to the old module to the new module's BEAM stub.
       patch_to_emu_step2(OldReferencesToPatch),
@@ -430,9 +432,9 @@ export_funs([FunDef | Addresses]) ->
 export_funs([]) ->
   ok.
 
-export_funs(Mod, Beam, Addresses, ClosuresToPatch) ->
+export_funs(Mod, MD5, Beam, Addresses, ClosuresToPatch) ->
   Fs = [{F,A,Address} || #fundef{address=Address, mfa={_M,F,A}} <- Addresses],
-  Mod = code:make_stub_module(Mod, Beam, {Fs,ClosuresToPatch}),
+  Mod = code:make_stub_module(Mod, Beam, {Fs,ClosuresToPatch,MD5}),
   ok.
 
 %%========================================================================
@@ -827,7 +829,6 @@ patch_to_emu_step1(Mod) ->
       %% were added as the result of dynamic apply calls. We must
       %% purge them too, but we have no explicit record of them.
       %% Therefore invalidate all native addresses for the module.
-      %% emu_make_stubs/1 will repair the ones for compiled static calls.
       hipe_bifs:invalidate_funinfo_native_addresses(MFAs),
       %% Find all call sites that call these MFAs. As a side-effect,
       %% create native stubs for any MFAs that are referred.
@@ -841,7 +842,6 @@ patch_to_emu_step1(Mod) ->
 
 %% Step 2 must occur after the new BEAM stub module is created.
 patch_to_emu_step2(ReferencesToPatch) ->
-  emu_make_stubs(ReferencesToPatch),
   redirect(ReferencesToPatch).
 
 -spec is_loaded(Module::atom()) -> boolean().
@@ -852,21 +852,6 @@ is_loaded(M) when is_atom(M) ->
   catch _:_ -> false
   end.
 
--ifdef(notdef).
-emu_make_stubs([{MFA,_Refs}|Rest]) ->
-  make_stub(MFA),
-  emu_make_stubs(Rest);
-emu_make_stubs([]) ->
-  [].
-
-make_stub({_,_,A} = MFA) ->
-  EmuAddress = hipe_bifs:get_emu_address(MFA),
-  StubAddress = hipe_bifs:make_native_stub(EmuAddress, A),
-  hipe_bifs:set_funinfo_native_address(MFA, StubAddress).
--else.
-emu_make_stubs(_) -> [].
--endif.
-
 %%--------------------------------------------------------------------
 %% Given a list of MFAs, tag them with their referred_from references.
 %% The resulting {MFA,Refs} list is later passed to redirect/1, once
diff --git a/lib/kernel/src/inet.erl b/lib/kernel/src/inet.erl
index ec2c350931..d668738109 100644
--- a/lib/kernel/src/inet.erl
+++ b/lib/kernel/src/inet.erl
@@ -1527,26 +1527,28 @@ tcp_controlling_process(S, NewOwner) when is_port(S), is_pid(NewOwner) ->
 	_ ->
 	    case prim_inet:getopt(S, active) of
 		{ok, A0} ->
-		    case A0 of
-			false -> ok;
-			_ -> ok = prim_inet:setopt(S, active, false)
-		    end,
-		    case tcp_sync_input(S, NewOwner, false) of
-			true ->  %% socket already closed, 
+		    SetOptRes =
+			case A0 of
+			    false -> ok;
+			    _ -> prim_inet:setopt(S, active, false)
+			end,
+		    case {tcp_sync_input(S, NewOwner, false), SetOptRes} of
+			{true, _} ->  %% socket already closed
 			    ok;
-			false ->
+			{false, ok} ->
 			    try erlang:port_connect(S, NewOwner) of
 				true -> 
 				    unlink(S), %% unlink from port
 				    case A0 of
 					false -> ok;
-					_ -> ok = prim_inet:setopt(S, active, A0)
-				    end,
-				    ok
+					_ -> prim_inet:setopt(S, active, A0)
+				    end
 			    catch
 				error:Reason -> 
 				    {error, Reason}
-			    end
+			    end;
+			{false, Error} ->
+			    Error
 		    end;
 		Error ->
 		    Error
diff --git a/lib/kernel/src/inet_config.erl b/lib/kernel/src/inet_config.erl
index fdc244f959..187bfbdab0 100644
--- a/lib/kernel/src/inet_config.erl
+++ b/lib/kernel/src/inet_config.erl
@@ -113,13 +113,7 @@ init() ->
 	{unix,_} ->
 	    %% The Etc variable enables us to run tests with other 
 	    %% configuration files than the normal ones 
-	    Etc =
-		case os:getenv("ERL_INET_ETC_DIR") of
-		    false ->
-			?DEFAULT_ETC;
-		    _EtcDir ->
-			_EtcDir
-		end,
+	    Etc = os:getenv("ERL_INET_ETC_DIR", ?DEFAULT_ETC),
 	    case inet_db:res_option(resolv_conf) of
 		undefined ->
 		    inet_db:res_option(
@@ -152,11 +146,7 @@ erl_dist_mode() ->
 do_load_resolv({unix,Type}, longnames) ->
     %% The Etc variable enables us to run tests with other 
     %% configuration files than the normal ones 
-    Etc = case os:getenv("ERL_INET_ETC_DIR") of
-	      false -> ?DEFAULT_ETC;
-	      _EtcDir -> 
-		  _EtcDir				 
-	  end,
+    Etc = os:getenv("ERL_INET_ETC_DIR", ?DEFAULT_ETC),
     load_resolv(filename:join(Etc, ?DEFAULT_RESOLV), resolv),
     case Type of
 	freebsd ->	    %% we may have to check version (2.2.2)
@@ -307,10 +297,7 @@ load_hosts(File,Os) ->
 win32_load_from_registry(Type) ->
     %% The TcpReg variable enables us to run tests with other registry configurations than
     %% the normal ones 
-    TcpReg = case os:getenv("ERL_INET_ETC_DIR") of
-		 false -> [];
-		 _TReg -> _TReg
-	     end,
+    TcpReg = os:getenv("ERL_INET_ETC_DIR", ""),
     {ok, Reg} = win32reg:open([read]),
     {TcpIp,HFileKey} =
     case Type of
diff --git a/lib/kernel/src/inet_db.erl b/lib/kernel/src/inet_db.erl
index 2ebdc0f554..535c11271e 100644
--- a/lib/kernel/src/inet_db.erl
+++ b/lib/kernel/src/inet_db.erl
@@ -1372,8 +1372,7 @@ cache_rr(_Db, Cache, RR) ->
     ets:insert(Cache, RR).
 
 times() ->
-    {Mega,Secs,_} = erlang:now(),
-    Mega*1000000 + Secs.
+    erlang:convert_time_unit(erlang:monotonic_time() - erlang:system_info(start_time),native,seconds).
 
 %% lookup and remove old entries
 
diff --git a/lib/kernel/src/inet_parse.erl b/lib/kernel/src/inet_parse.erl
index a88c94a453..a694642b19 100644
--- a/lib/kernel/src/inet_parse.erl
+++ b/lib/kernel/src/inet_parse.erl
@@ -675,28 +675,22 @@ ipv6_addr_done(Ar, Br, N) ->
 ipv6_addr_done(Ar) ->
     list_to_tuple(lists:reverse(Ar)).
 
-%% Collect Hex digits
-hex(Cs) -> hex(Cs, []).
-%%
-hex([C|Cs], R) when C >= $0, C =< $9 ->
-    hex(Cs, [C|R]);
-hex([C|Cs], R) when C >= $a, C =< $f ->
-    hex(Cs, [C|R]);
-hex([C|Cs], R) when C >= $A, C =< $F ->
-    hex(Cs, [C|R]);
-hex(Cs, [_|_]=R) when is_list(Cs) ->
+%% Collect 1-4 Hex digits
+hex(Cs) -> hex(Cs, [], 4).
+%%
+hex([C|Cs], R, N) when C >= $0, C =< $9, N > 0 ->
+    hex(Cs, [C|R], N-1);
+hex([C|Cs], R, N) when C >= $a, C =< $f, N > 0 ->
+    hex(Cs, [C|R], N-1);
+hex([C|Cs], R, N) when C >= $A, C =< $F, N > 0 ->
+    hex(Cs, [C|R], N-1);
+hex(Cs, [_|_]=R, _) when is_list(Cs) ->
     {lists:reverse(R),Cs};
-hex(_, _) ->
+hex(_, _, _) ->
     erlang:error(badarg).
 
 %% Hex string to integer
-hex_to_int(Cs0) ->
-    case strip0(Cs0) of
-	Cs when length(Cs) =< 4 ->
-	    erlang:list_to_integer("0"++Cs, 16);
-	_ ->
-	    erlang:error(badarg)
-    end.
+hex_to_int(Cs) -> erlang:list_to_integer(Cs, 16).
 
 %% Dup onto head of existing list
 dup(0, _, L) ->
diff --git a/lib/kernel/src/inet_res.erl b/lib/kernel/src/inet_res.erl
index 6037da1d22..410128a16a 100644
--- a/lib/kernel/src/inet_res.erl
+++ b/lib/kernel/src/inet_res.erl
@@ -715,10 +715,10 @@ udp_send(#sock{inet=I}, {A,B,C,D}=IP, Port, Buffer)
 
 udp_recv(#sock{inet6=I}, {A,B,C,D,E,F,G,H}=IP, Port, Timeout, Decode)
   when ?ip6(A,B,C,D,E,F,G,H), ?port(Port) ->
-    do_udp_recv(I, IP, Port, Timeout, Decode, erlang:now(), Timeout);
+    do_udp_recv(I, IP, Port, Timeout, Decode, time_now(), Timeout);
 udp_recv(#sock{inet=I}, {A,B,C,D}=IP, Port, Timeout, Decode)
   when ?ip(A,B,C,D), ?port(Port) ->
-    do_udp_recv(I, IP, Port, Timeout, Decode, erlang:now(), Timeout).
+    do_udp_recv(I, IP, Port, Timeout, Decode, time_now(), Timeout).
 
 do_udp_recv(_I, _IP, _Port, 0, _Decode, _Start, _T) ->
     timeout;
@@ -742,7 +742,7 @@ do_udp_recv(I, IP, Port, Timeout, Decode, Start, T) ->
 		    NewTimeout = erlang:max(0, Timeout - 50),
 		    do_udp_recv(I, IP, Port, NewTimeout, Decode, Start, T);
 		false ->
-		    Now = erlang:now(),
+		    Now = time_now(),
 		    NewT = erlang:max(0, Timeout - now_ms(Now, Start)),
 		    do_udp_recv(I, IP, Port, Timeout, Decode, Start, NewT);
 		Result ->
@@ -1057,5 +1057,9 @@ dns_msg(Msg) ->
     end.
 
 -compile({inline, [now_ms/2]}).
-now_ms({Meg1,Sec1,Mic1}, {Meg0,Sec0,Mic0}) ->
-    ((Meg1-Meg0)*1000000 + (Sec1-Sec0))*1000 + ((Mic1-Mic0) div 1000).
+now_ms(Int1, Int0) ->
+    Int1 - Int0.
+
+-compile({inline, [time_now/0]}).
+time_now() ->
+	erlang:monotonic_time(1000).
diff --git a/lib/kernel/src/inet_sctp.erl b/lib/kernel/src/inet_sctp.erl
index 93528d305d..f0f13c8d4a 100644
--- a/lib/kernel/src/inet_sctp.erl
+++ b/lib/kernel/src/inet_sctp.erl
@@ -133,15 +133,18 @@ connect_get_assoc(S, Addr, Port, Active, Timer) ->
     Timeout = inet:timeout(Timer),
     receive
 	{sctp,S,Addr,Port,{_,#sctp_assoc_change{state=St}=Ev}} ->
-	    case Active of
-		once ->
-		    ok = prim_inet:setopt(S, active, once);
-		_ -> ok
-	    end,
-	    if St =:= comm_up ->
+	    SetOptRes =
+		case Active of
+		    once -> prim_inet:setopt(S, active, once);
+		    _ -> ok
+		end,
+	    case {St, SetOptRes} of
+		{comm_up, ok} ->
 		    {ok,Ev};
-	       true ->
-		    {error,Ev}
+		{_, ok} ->
+		    {error,Ev};
+		{_, Error} ->
+		    Error
 	    end
     after Timeout ->
 	    {error,timeout}
diff --git a/lib/kernel/src/inet_tcp_dist.erl b/lib/kernel/src/inet_tcp_dist.erl
index 835dcf2705..fb60a14afb 100644
--- a/lib/kernel/src/inet_tcp_dist.erl
+++ b/lib/kernel/src/inet_tcp_dist.erl
@@ -112,7 +112,6 @@ listen_options(Opts0) ->
 	end,
     case application:get_env(kernel, inet_dist_listen_options) of
 	{ok,ListenOpts} ->
-	    erlang:display({inet_dist_listen_options, ListenOpts}),
 	    ListenOpts ++ Opts1;
 	_ ->
 	    Opts1
@@ -340,7 +339,6 @@ do_setup(Kernel, Node, Type, MyNode, LongOrShortNames,SetupTime) ->
 connect_options(Opts) ->
     case application:get_env(kernel, inet_dist_connect_options) of
 	{ok,ConnectOpts} ->
-	    erlang:display({inet_dist_listen_options, ConnectOpts}),
 	    ConnectOpts ++ Opts;
 	_ ->
 	    Opts
diff --git a/lib/kernel/src/kernel.app.src b/lib/kernel/src/kernel.app.src
index 9f6c0f4624..9787dca162 100644
--- a/lib/kernel/src/kernel.app.src
+++ b/lib/kernel/src/kernel.app.src
@@ -115,6 +115,6 @@
   {applications, []},
   {env, [{error_logger, tty}]},
   {mod, {kernel, []}},
-  {runtime_dependencies, ["erts-6.1.2", "stdlib-2.0", "sasl-2.4"]}
+  {runtime_dependencies, ["erts-7.0", "stdlib-2.5", "sasl-2.4"]}
  ]
 }.
diff --git a/lib/kernel/src/kernel.appup.src b/lib/kernel/src/kernel.appup.src
index f8f4cc1ec2..5d3836bad7 100644
--- a/lib/kernel/src/kernel.appup.src
+++ b/lib/kernel/src/kernel.appup.src
@@ -1,7 +1,7 @@
 %% -*- erlang -*-
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1999-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -17,9 +17,7 @@
 %% %CopyrightEnd%
 {"%VSN%",
  %% Up from - max one major revision back
- [{<<"3\\.0(\\.[0-9]+)*">>,[restart_new_emulator]}, %% R17
-  {<<"2\\.16(\\.[0-9]+)*">>,[restart_new_emulator]}],%% R16
+ [{<<"3\\.[0-2](\\.[0-9]+)*">>,[restart_new_emulator]}], % OTP-17
  %% Down to - max one major revision back
- [{<<"3\\.0(\\.[0-9]+)*">>,[restart_new_emulator]}, %% R17
-  {<<"2\\.16(\\.[0-9]+)*">>,[restart_new_emulator]}] %% R16
+ [{<<"3\\.[0-2](\\.[0-9]+)*">>,[restart_new_emulator]}]  % OTP-17
 }.
diff --git a/lib/kernel/src/kernel.erl b/lib/kernel/src/kernel.erl
index ecdb32424a..cc5683ba06 100644
--- a/lib/kernel/src/kernel.erl
+++ b/lib/kernel/src/kernel.erl
@@ -117,7 +117,7 @@ init([]) ->
 			       [{local, kernel_safe_sup}, ?MODULE, safe]},
 			      permanent, infinity, supervisor, [?MODULE]},
 	    {ok, {SupFlags,
-		  [File, Code, StdError, User,
+		  [Code, File, StdError, User,
 		   Config, SafeSupervisor]}};
 	_ ->
 	    Rpc = {rex, {rpc, start_link, []}, 
@@ -139,8 +139,8 @@ init([]) ->
 			       [{local, kernel_safe_sup}, ?MODULE, safe]},
 			      permanent, infinity, supervisor, [?MODULE]},
 	    {ok, {SupFlags,
-		  [Rpc, Global, InetDb | DistAC] ++ 
-		  [NetSup, Glo_grp, File, Code, 
+		  [Code, Rpc, Global, InetDb | DistAC] ++
+		  [NetSup, Glo_grp, File,
 		   StdError, User, Config, SafeSupervisor] ++ Timer}}
     end;
 init(safe) ->
diff --git a/lib/kernel/src/os.erl b/lib/kernel/src/os.erl
index 187fd0001b..3647545777 100644
--- a/lib/kernel/src/os.erl
+++ b/lib/kernel/src/os.erl
@@ -26,7 +26,8 @@
 
 %%% BIFs
 
--export([getenv/0, getenv/1, getpid/0, putenv/2, timestamp/0, unsetenv/1]).
+-export([getenv/0, getenv/1, getenv/2, getpid/0, putenv/2, system_time/0, system_time/1,
+	 timestamp/0, unsetenv/1]).
 
 -spec getenv() -> [string()].
 
@@ -39,6 +40,19 @@ getenv() -> erlang:nif_error(undef).
 getenv(_) ->
     erlang:nif_error(undef).
 
+-spec getenv(VarName, DefaultValue) -> Value when
+      VarName :: string(),
+      DefaultValue :: string(),
+      Value :: string().
+
+getenv(VarName, DefaultValue) ->
+    case os:getenv(VarName) of
+        false ->
+           DefaultValue;
+        Value ->
+            Value
+    end.
+
 -spec getpid() -> Value when
       Value :: string().
 
@@ -52,6 +66,17 @@ getpid() ->
 putenv(_, _) ->
     erlang:nif_error(undef).
 
+-spec system_time() -> integer().
+
+system_time() ->
+    erlang:nif_error(undef).
+
+-spec system_time(Unit) -> integer() when
+      Unit :: erlang:time_unit().
+
+system_time(_Unit) ->
+    erlang:nif_error(undef).
+
 -spec timestamp() -> Timestamp when
       Timestamp :: erlang:timestamp().
 
@@ -85,10 +110,7 @@ version() ->
       Name :: string(),
       Filename :: string().
 find_executable(Name) ->
-    case os:getenv("PATH") of
-	false -> find_executable(Name, []);
-	Path  -> find_executable(Name, Path)
-    end.
+    find_executable(Name, os:getenv("PATH", "")).
 
 -spec find_executable(Name, Path) -> Filename | 'false' when
       Name :: string(),
diff --git a/lib/kernel/src/pg2.erl b/lib/kernel/src/pg2.erl
index b562d4ffd2..70d7a75671 100644
--- a/lib/kernel/src/pg2.erl
+++ b/lib/kernel/src/pg2.erl
@@ -140,19 +140,22 @@ get_closest_pid(Name) ->
         [Pid] ->
             Pid;
         [] ->
-            {_,_,X} = erlang:now(),
             case get_members(Name) of
                 [] -> {error, {no_process, Name}};
                 Members ->
-                    lists:nth((X rem length(Members))+1, Members)
+                    random_element(Members)
             end;
         Members when is_list(Members) ->
-            {_,_,X} = erlang:now(),
-            lists:nth((X rem length(Members))+1, Members);
+            random_element(Members);
         Else ->
             Else
     end.
 
+random_element(List) ->
+    X = abs(erlang:monotonic_time()
+		bxor erlang:unique_integer()),
+    lists:nth((X rem length(List)) + 1, List).
+
 %%%
 %%% Callback functions from gen_server
 %%%
diff --git a/lib/kernel/src/user_drv.erl b/lib/kernel/src/user_drv.erl
index a91c23539d..d3deca3a20 100644
--- a/lib/kernel/src/user_drv.erl
+++ b/lib/kernel/src/user_drv.erl
@@ -29,6 +29,7 @@
 -define(OP_INSC,2).
 -define(OP_DELC,3).
 -define(OP_BEEP,4).
+-define(OP_PUTC_SYNC,5).
 % Control op
 -define(CTRL_OP_GET_WINSIZE,100).
 -define(CTRL_OP_GET_UNICODE_STATE,101).
@@ -132,8 +133,9 @@ server1(Iport, Oport, Shell) ->
 		flatten(io_lib:format("~ts\n",
 				      [erlang:system_info(system_version)]))},
 	       Iport, Oport),
+
     %% Enter the server loop.
-    server_loop(Iport, Oport, Curr, User, Gr).
+    server_loop(Iport, Oport, Curr, User, Gr, {false, queue:new()}).
 
 rem_sh_opts(Node) ->
     [{expand_fun,fun(B)-> rpc:call(Node,edlin_expand,expand,[B]) end}].
@@ -158,42 +160,41 @@ start_user() ->
 	    User
     end.
    
-server_loop(Iport, Oport, User, Gr) ->
+server_loop(Iport, Oport, User, Gr, IOQueue) ->
     Curr = gr_cur_pid(Gr),
     put(current_group, Curr),
-    server_loop(Iport, Oport, Curr, User, Gr).
+    server_loop(Iport, Oport, Curr, User, Gr, IOQueue).
 
-server_loop(Iport, Oport, Curr, User, Gr) ->
+server_loop(Iport, Oport, Curr, User, Gr, {Resp, IOQ} = IOQueue) ->
     receive
 	{Iport,{data,Bs}} ->
 	    BsBin = list_to_binary(Bs),
 	    Unicode = unicode:characters_to_list(BsBin,utf8),
-	    port_bytes(Unicode, Iport, Oport, Curr, User, Gr);
+	    port_bytes(Unicode, Iport, Oport, Curr, User, Gr, IOQueue);
 	{Iport,eof} ->
 	    Curr ! {self(),eof},
-	    server_loop(Iport, Oport, Curr, User, Gr);
-	{User,Req} ->	% never block from user!
-	    io_request(Req, Iport, Oport),
-	    server_loop(Iport, Oport, Curr, User, Gr);
-	{Curr,tty_geometry} ->
-	    Curr ! {self(),tty_geometry,get_tty_geometry(Iport)},
-	    server_loop(Iport, Oport, Curr, User, Gr);
-	{Curr,get_unicode_state} ->
-	    Curr ! {self(),get_unicode_state,get_unicode_state(Iport)},
-	    server_loop(Iport, Oport, Curr, User, Gr);
-	{Curr,set_unicode_state, Bool} ->
-	    Curr ! {self(),set_unicode_state,set_unicode_state(Iport,Bool)},
-	    server_loop(Iport, Oport, Curr, User, Gr);
-	{Curr,Req} ->
-	    io_request(Req, Iport, Oport),
-	    server_loop(Iport, Oport, Curr, User, Gr);
+	    server_loop(Iport, Oport, Curr, User, Gr, IOQueue);
+        Req when element(1,Req) =:= User orelse element(1,Req) =:= Curr,
+                 tuple_size(Req) =:= 2 orelse tuple_size(Req) =:= 3 ->
+            %% We match {User|Curr,_}|{User|Curr,_,_}
+            NewQ = handle_req(Req, Iport, Oport, IOQueue),
+            server_loop(Iport, Oport, Curr, User, Gr, NewQ);
+        {Oport,ok} ->
+            %% We get this ok from the port, in io_request we store
+            %% info about where to send reply at head of queue
+            {Origin,Reply} = Resp,
+            Origin ! {reply,Reply},
+            NewQ = handle_req(next, Iport, Oport, {false, IOQ}),
+            server_loop(Iport, Oport, Curr, User, Gr, NewQ);
 	{'EXIT',Iport,_R} ->
-	    server_loop(Iport, Oport, Curr, User, Gr);
+	    server_loop(Iport, Oport, Curr, User, Gr, IOQueue);
 	{'EXIT',Oport,_R} ->
-	    server_loop(Iport, Oport, Curr, User, Gr);
+	    server_loop(Iport, Oport, Curr, User, Gr, IOQueue);
+        {'EXIT',User,shutdown} ->               % force data to port
+	    server_loop(Iport, Oport, Curr, User, Gr, IOQueue);
 	{'EXIT',User,_R} ->			% keep 'user' alive
 	    NewU = start_user(),
-	    server_loop(Iport, Oport, Curr, NewU, gr_set_num(Gr, 1, NewU, {}));
+	    server_loop(Iport, Oport, Curr, NewU, gr_set_num(Gr, 1, NewU, {}), IOQueue);
 	{'EXIT',Pid,R} ->			% shell and group leader exit
 	    case gr_cur_pid(Gr) of
 		Pid when R =/= die ,
@@ -213,53 +214,88 @@ server_loop(Iport, Oport, Curr, User, Gr) ->
 			    {ok,Gr2} = gr_set_cur(gr_set_num(Gr1, Ix, Pid1, 
 							     {shell,start,Params}), Ix),
 			    put(current_group, Pid1),
-			    server_loop(Iport, Oport, Pid1, User, Gr2);
+			    server_loop(Iport, Oport, Pid1, User, Gr2, IOQueue);
 			_ -> % remote shell
 			    io_requests([{put_chars,unicode,"(^G to start new job) ***\n"}],
 					Iport, Oport),	    
-			    server_loop(Iport, Oport, Curr, User, Gr1)
+			    server_loop(Iport, Oport, Curr, User, Gr1, IOQueue)
 		    end;
 		_ ->				% not current, just remove it
-		    server_loop(Iport, Oport, Curr, User, gr_del_pid(Gr, Pid))
+		    server_loop(Iport, Oport, Curr, User, gr_del_pid(Gr, Pid), IOQueue)
 	    end;
 	_X ->
 	    %% Ignore unknown messages.
-	    server_loop(Iport, Oport, Curr, User, Gr)
+	    server_loop(Iport, Oport, Curr, User, Gr, IOQueue)
     end.
 
+%% We always handle geometry and unicode requests
+handle_req({Curr,tty_geometry},Iport,_Oport,IOQueue) ->
+    Curr ! {self(),tty_geometry,get_tty_geometry(Iport)},
+    IOQueue;
+handle_req({Curr,get_unicode_state},Iport,_Oport,IOQueue) ->
+    Curr ! {self(),get_unicode_state,get_unicode_state(Iport)},
+    IOQueue;
+handle_req({Curr,set_unicode_state, Bool},Iport,_Oport,IOQueue) ->
+    Curr ! {self(),set_unicode_state,set_unicode_state(Iport,Bool)},
+    IOQueue;
+handle_req(next,Iport,Oport,{false,IOQ}=IOQueue) ->
+    case queue:out(IOQ) of
+        {empty,_} ->
+	    IOQueue;
+        {{value,{Origin,Req}},ExecQ} ->
+            case io_request(Req, Iport, Oport) of
+                ok ->
+		    handle_req(next,Iport,Oport,{false,ExecQ});
+                Reply ->
+		    {{Origin,Reply}, ExecQ}
+            end
+    end;
+handle_req(Msg,Iport,Oport,{false,IOQ}=IOQueue) ->
+    empty = queue:peek(IOQ),
+    {Origin,Req} = Msg,
+    case io_request(Req, Iport, Oport) of
+	ok ->
+	    IOQueue;
+	Reply ->
+	    {{Origin,Reply}, IOQ}
+    end;
+handle_req(Msg,_Iport,_Oport,{Resp, IOQ}) ->
+    %% All requests are queued when we have outstanding sync put_chars
+    {Resp, queue:in(Msg,IOQ)}.
+
 %% port_bytes(Bytes, InPort, OutPort, CurrentProcess, UserProcess, Group)
 %%  Check the Bytes from the port to see if it contains a ^G. If so,
 %%  either escape to switch_loop or restart the shell. Otherwise send 
 %%  the bytes to Curr.
 
-port_bytes([$\^G|_Bs], Iport, Oport, _Curr, User, Gr) ->
-    handle_escape(Iport, Oport, User, Gr);
+port_bytes([$\^G|_Bs], Iport, Oport, _Curr, User, Gr, IOQueue) ->
+    handle_escape(Iport, Oport, User, Gr, IOQueue);
 
-port_bytes([$\^C|_Bs], Iport, Oport, Curr, User, Gr) ->
-    interrupt_shell(Iport, Oport, Curr, User, Gr);
+port_bytes([$\^C|_Bs], Iport, Oport, Curr, User, Gr, IOQueue) ->
+    interrupt_shell(Iport, Oport, Curr, User, Gr, IOQueue);
 
-port_bytes([B], Iport, Oport, Curr, User, Gr) ->
+port_bytes([B], Iport, Oport, Curr, User, Gr, IOQueue) ->
     Curr ! {self(),{data,[B]}},
-    server_loop(Iport, Oport, Curr, User, Gr);
-port_bytes(Bs, Iport, Oport, Curr, User, Gr) ->
+    server_loop(Iport, Oport, Curr, User, Gr, IOQueue);
+port_bytes(Bs, Iport, Oport, Curr, User, Gr, IOQueue) ->
     case member($\^G, Bs) of
 	true ->
-	    handle_escape(Iport, Oport, User, Gr);
+	    handle_escape(Iport, Oport, User, Gr, IOQueue);
 	false ->
 	    Curr ! {self(),{data,Bs}},
-	    server_loop(Iport, Oport, Curr, User, Gr)
+	    server_loop(Iport, Oport, Curr, User, Gr, IOQueue)
     end.
 
-interrupt_shell(Iport, Oport, Curr, User, Gr) ->
+interrupt_shell(Iport, Oport, Curr, User, Gr, IOQueue) ->
     case gr_get_info(Gr, Curr) of
 	undefined -> 
 	    ok;					% unknown
 	_ ->
 	    exit(Curr, interrupt)
     end,
-    server_loop(Iport, Oport, Curr, User, Gr).
+    server_loop(Iport, Oport, Curr, User, Gr, IOQueue).
 
-handle_escape(Iport, Oport, User, Gr) ->
+handle_escape(Iport, Oport, User, Gr, IOQueue) ->
     case application:get_env(stdlib, shell_esc) of
 	{ok,abort} ->
 	    Pid = gr_cur_pid(Gr),
@@ -278,11 +314,14 @@ handle_escape(Iport, Oport, User, Gr) ->
 	    Pid1 = group:start(self(), {shell,start,[]}),
 	    io_request({put_chars,unicode,"\n"}, Iport, Oport),
 	    server_loop(Iport, Oport, User, 
-			gr_add_cur(Gr1, Pid1, {shell,start,[]}));
+			gr_add_cur(Gr1, Pid1, {shell,start,[]}), IOQueue);
 
 	_ ->					% {ok,jcl} | undefined
 	    io_request({put_chars,unicode,"\nUser switch command\n"}, Iport, Oport),
-	    server_loop(Iport, Oport, User, switch_loop(Iport, Oport, Gr))
+	    %% init edlin used by switch command and have it copy the
+	    %% text buffer from current group process
+	    edlin:init(gr_cur_pid(Gr)),
+	    server_loop(Iport, Oport, User, switch_loop(Iport, Oport, Gr), IOQueue)
     end.
 
 switch_loop(Iport, Oport, Gr) ->
@@ -492,9 +531,12 @@ set_unicode_state(Iport, Bool) ->
 
 io_request(Request, Iport, Oport) ->
     try io_command(Request) of
-        Command ->
+        {command,_} = Command ->
             Oport ! {self(),Command},
-            ok
+            ok;
+        {Command,Reply} ->
+            Oport ! {self(),Command},
+            Reply
     catch
         {requests,Rs} ->
             io_requests(Rs, Iport, Oport);
@@ -511,6 +553,13 @@ io_requests([], _Iport, _Oport) ->
 put_int16(N, Tail) ->
     [(N bsr 8)band 255,N band 255|Tail].
 
+%% When a put_chars_sync command is used, user_drv guarantees that
+%% the bytes have been put in the buffer of the port before an acknowledgement
+%% is sent back to the process sending the request. This command was added in
+%% OTP 18 to make sure that data sent from io:format is actually printed
+%% to the console before the vm stops when calling erlang:halt(integer()).
+io_command({put_chars_sync, unicode,Cs,Reply}) ->
+    {{command,[?OP_PUTC_SYNC|unicode:characters_to_binary(Cs,utf8)]},Reply};
 io_command({put_chars, unicode,Cs}) ->
     {command,[?OP_PUTC|unicode:characters_to_binary(Cs,utf8)]};
 io_command({move_rel,N}) ->
diff --git a/lib/kernel/test/application_SUITE.erl b/lib/kernel/test/application_SUITE.erl
index 4901206c8e..59efe85480 100644
--- a/lib/kernel/test/application_SUITE.erl
+++ b/lib/kernel/test/application_SUITE.erl
@@ -2699,10 +2699,7 @@ node_names(Names, Config) ->
 
 node_name(Name, Config) ->
     U = "_",
-    {{Y,M,D}, {H,Min,S}} = calendar:now_to_local_time(now()),
-    Date = io_lib:format("~4w_~2..0w_~2..0w__~2..0w_~2..0w_~2..0w", 
-                         [Y,M,D, H,Min,S]),
-    L = lists:flatten(Date),
+    L = integer_to_list(erlang:unique_integer([positive])),
     lists:concat([Name,U,?testcase,U,U,L]).
 
 stop_node_nice(Node) when is_atom(Node) ->
diff --git a/lib/kernel/test/code_SUITE.erl b/lib/kernel/test/code_SUITE.erl
index afedc17e57..c82aaf0582 100644
--- a/lib/kernel/test/code_SUITE.erl
+++ b/lib/kernel/test/code_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -1396,8 +1396,9 @@ on_load_binary(_) ->
 		  {tuple,6,[{atom,6,Mod},{call,6,{atom,6,self},[]}]}},
 		 {'receive',7,[{clause,8,[{atom,8,go}],[],[{atom,8,ok}]}]}]}]},
 	     {function,11,ok,0,[{clause,11,[],[],[{atom,11,true}]}]}],
-    {ok,Mod,Bin} = compile:forms(Forms, [report]),
-    [io:put_chars(erl_pp:form(F)) || F <- Forms],
+    Forms1 = erl_parse:new_anno(Forms),
+    {ok,Mod,Bin} = compile:forms(Forms1, [report]),
+    [io:put_chars(erl_pp:form(F)) || F <- Forms1],
 
     {Pid1,Ref1} = spawn_monitor(fun() ->
 					code:load_binary(Mod, File, Bin),
@@ -1653,9 +1654,7 @@ get_mode(Config) when is_list(Config) ->
 init(Tester) ->
     {ok, Tester}.
 
-handle_event({error, _GL, {emulator, _, _}}, Tester) ->
-    {ok, Tester};
-handle_event({error, _GL, Msg}, Tester) ->
+handle_event({warning_msg, _GL, Msg}, Tester) ->
     Tester ! Msg,
     {ok, Tester};
 handle_event(_Event, State) ->
diff --git a/lib/kernel/test/erl_distribution_SUITE.erl b/lib/kernel/test/erl_distribution_SUITE.erl
index 15c2adc957..76564d4b0e 100644
--- a/lib/kernel/test/erl_distribution_SUITE.erl
+++ b/lib/kernel/test/erl_distribution_SUITE.erl
@@ -235,11 +235,10 @@ do_test_setuptime(Setuptime) when is_list(Setuptime) ->
     Res.
 
 time_ping(Node) ->
-    T0 = erlang:now(),
+    T0 = erlang:monotonic_time(),
     pang = net_adm:ping(Node),
-    T1 = erlang:now(),
-    time_diff(T0,T1).
-    
+    T1 = erlang:monotonic_time(),
+    erlang:convert_time_unit(T1 - T0, native, milli_seconds).
 
 %% Keep the connection with the client node up.
 %% This is neccessary as the client node runs with much shorter
@@ -276,13 +275,15 @@ tick_cli_test1(Node) ->
     erlang:monitor_node(Node, true),
     sleep(2),
     rpc:call(Node, erlang, time, []), %% simulate action on the connection
-    T1 = now(),
+    T1 = erlang:monotonic_time(),
     receive
 	{nodedown, Node} ->
-	    T2 = now(),
+	    T2 = erlang:monotonic_time(),
 	    receive
 		{whats_the_result, From} ->
-		    case time_diff(T1, T2) of
+		    Diff = erlang:convert_time_unit(T2-T1, native,
+						    milli_seconds),
+		    case Diff of
 			T when T > 8000, T < 16000 ->
 			    From ! {tick_test, T};
 			T ->
@@ -1208,19 +1209,6 @@ print_my_messages() ->
     ?line ?t:format("Messages: ~p~n", [Messages]),
     ?line ok.
 
-%% Time difference in milliseconds !!
-time_diff({TimeM, TimeS, TimeU}, {CurM, CurS, CurU}) when CurM > TimeM ->
-    ((CurM - TimeM) * 1000000000) + sec_diff({TimeS, TimeU}, {CurS, CurU});
-time_diff({_, TimeS, TimeU}, {_, CurS, CurU}) ->
-    sec_diff({TimeS, TimeU}, {CurS, CurU}).
-
-sec_diff({TimeS, TimeU}, {CurS, CurU}) when CurS > TimeS ->
-    ((CurS - TimeS) * 1000) + micro_diff(TimeU, CurU);
-sec_diff({_, TimeU}, {_, CurU}) ->
-    micro_diff(TimeU, CurU).
-
-micro_diff(TimeU, CurU) ->
-    trunc(CurU/1000) - trunc(TimeU/1000).
 
 sleep(T) -> receive after T * 1000 -> ok end.	
 
@@ -1267,16 +1255,12 @@ get_nodenames(N, T) ->
 get_nodenames(0, _, Acc) ->
     Acc;
 get_nodenames(N, T, Acc) ->
-    {A, B, C} = now(),
+    U = erlang:unique_integer([positive]),
     get_nodenames(N-1, T, [list_to_atom(atom_to_list(T)
 					++ "-"
-					++ atom_to_list(?MODULE)
-					++ "-"
-					++ integer_to_list(A)
+					++ ?MODULE_STRING
 					++ "-"
-					++ integer_to_list(B)
-					++ "-"
-					++ integer_to_list(C)) | Acc]).
+					++ integer_to_list(U)) | Acc]).
 
 get_numbered_nodenames(N, T) ->
     get_numbered_nodenames(N, T, []).
@@ -1284,16 +1268,12 @@ get_numbered_nodenames(N, T) ->
 get_numbered_nodenames(0, _, Acc) ->
     Acc;
 get_numbered_nodenames(N, T, Acc) ->
-    {A, B, C} = now(),
+    U = erlang:unique_integer([positive]),
     NL = [list_to_atom(atom_to_list(T) ++ integer_to_list(N)
 		       ++ "-"
-		       ++ atom_to_list(?MODULE)
-		       ++ "-"
-		       ++ integer_to_list(A)
-		       ++ "-"
-		       ++ integer_to_list(B)
+		       ++ ?MODULE_STRING
 		       ++ "-"
-		       ++ integer_to_list(C)) | Acc],
+		       ++ integer_to_list(U)) | Acc],
     get_numbered_nodenames(N-1, T, NL).
 
 wait_until(Fun) ->
diff --git a/lib/kernel/test/erl_distribution_wb_SUITE.erl b/lib/kernel/test/erl_distribution_wb_SUITE.erl
index 3b8b2d9150..8e2bbf5b64 100644
--- a/lib/kernel/test/erl_distribution_wb_SUITE.erl
+++ b/lib/kernel/test/erl_distribution_wb_SUITE.erl
@@ -451,11 +451,8 @@ close_pair({Client, Server}) ->
 %% MD5 hashing
 %%
 
-%% This is no proper random number, but that is not really important in 
-%% this test
 gen_challenge() ->
-    {_,_,N} = erlang:now(), 
-    N.
+    rand:uniform(1000000).
     
 %% Generate a message digest from Challenge number and Cookie	
 gen_digest(Challenge, Cookie) when is_integer(Challenge), is_atom(Cookie) ->
@@ -712,13 +709,9 @@ get_nodenames(N, T) ->
 get_nodenames(0, _, Acc) ->
     Acc;
 get_nodenames(N, T, Acc) ->
-    {A, B, C} = now(),
-    get_nodenames(N-1, T, [list_to_atom(atom_to_list(?MODULE)
+    U = erlang:unique_integer([positive]),
+    get_nodenames(N-1, T, [list_to_atom(?MODULE_STRING
 					++ "-"
 					++ atom_to_list(T)
 					++ "-"
-					++ integer_to_list(A)
-					++ "-"
-					++ integer_to_list(B)
-					++ "-"
-					++ integer_to_list(C)) | Acc]).
+					++ integer_to_list(U)) | Acc]).
diff --git a/lib/kernel/test/error_logger_SUITE.erl b/lib/kernel/test/error_logger_SUITE.erl
index 05bf5aae18..1c2e56f083 100644
--- a/lib/kernel/test/error_logger_SUITE.erl
+++ b/lib/kernel/test/error_logger_SUITE.erl
@@ -32,7 +32,7 @@
 	 error_report/1, info_report/1, error/1, info/1,
 	 emulator/1, tty/1, logfile/1, add/1, delete/1]).
 
--export([generate_error/0]).
+-export([generate_error/2]).
 
 -export([init/1,
 	 handle_event/2, handle_call/2, handle_info/2,
@@ -210,13 +210,16 @@ emulator(suite) -> [];
 emulator(doc) -> [];
 emulator(Config) when is_list(Config) ->
     ?line error_logger:add_report_handler(?MODULE, self()),
-    spawn(?MODULE, generate_error, []),
-    reported(emulator),
+    Msg = "Error in process ~p on node ~p with exit value:~n~p~n",
+    Error = {badmatch,4},
+    Stack = [{module, function, 2, []}],
+    Pid = spawn(?MODULE, generate_error, [Error, Stack]),
+    reported(error, Msg, [Pid, node(), {Error, Stack}]),
     ?line my_yes = error_logger:delete_report_handler(?MODULE),
     ok.
 
-generate_error() ->
-    erlang:error({badmatch,4}).
+generate_error(Error, Stack) ->
+    erlang:raise(error, Error, Stack).
 
 %%-----------------------------------------------------------------
 %% We don't enables or disables tty error logging here. We do not
@@ -283,15 +286,6 @@ reported(Tag, Type, Report) ->
 	    test_server:fail(no_report_received)
     end.
 
-reported(emulator) ->
-    receive
-	{error, "~s~n", String} when is_list(String) ->
-	    test_server:messages_get(),
-	    ok
-    after 1000 ->
-	    test_server:fail(no_report_received)
-    end.
-
 %%-----------------------------------------------------------------
 %% The error_logger handler (gen_event behaviour).
 %% Sends a notification to the Tester process about the events
diff --git a/lib/kernel/test/error_logger_warn_SUITE.erl b/lib/kernel/test/error_logger_warn_SUITE.erl
index 2bf467610e..fb576d77a3 100644
--- a/lib/kernel/test/error_logger_warn_SUITE.erl
+++ b/lib/kernel/test/error_logger_warn_SUITE.erl
@@ -21,8 +21,8 @@
 -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, 
 	 init_per_group/2,end_per_group/2,
 	 init_per_testcase/2,end_per_testcase/2,
-	 basic/1,warnings_info/1,warnings_warnings/1,
-	 rb_basic/1,rb_warnings_info/1,rb_warnings_warnings/1,
+	 basic/1,warnings_info/1,warnings_errors/1,
+	 rb_basic/1,rb_warnings_info/1,rb_warnings_errors/1,
 	 rb_trunc/1,rb_utc/1,file_utc/1]).
 
 %% Internal exports.
@@ -48,8 +48,8 @@
 suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() -> 
-    [basic, warnings_info, warnings_warnings, rb_basic,
-     rb_warnings_info, rb_warnings_warnings, rb_trunc,
+    [basic, warnings_info, warnings_errors, rb_basic,
+     rb_warnings_info, rb_warnings_errors, rb_trunc,
      rb_utc, file_utc].
 
 groups() -> 
@@ -88,11 +88,11 @@ warnings_info(Config) when is_list(Config) ->
     put(elw_config,Config),
     warnings_info().
 
-warnings_warnings(doc) ->
-    ["Tests mapping warnings to warnings functionality"];
-warnings_warnings(Config) when is_list(Config) ->
+warnings_errors(doc) ->
+    ["Tests mapping warnings to errors functionality"];
+warnings_errors(Config) when is_list(Config) ->
     put(elw_config,Config),
-    warnings_warnings().
+    warnings_errors().
 
 rb_basic(doc) ->
     ["Tests basic rb functionality"];
@@ -106,11 +106,11 @@ rb_warnings_info(Config) when is_list(Config) ->
     put(elw_config,Config),
     rb_warnings_info().
 
-rb_warnings_warnings(doc) ->
-    ["Tests warnings as warnings rb functionality"];
-rb_warnings_warnings(Config) when is_list(Config) ->
+rb_warnings_errors(doc) ->
+    ["Tests warnings as errors rb functionality"];
+rb_warnings_errors(Config) when is_list(Config) ->
     put(elw_config,Config),
-    rb_warnings_warnings().
+    rb_warnings_errors().
 
 rb_trunc(doc) ->
     ["Tests rb functionality on truncated data"];
@@ -159,6 +159,9 @@ install_relay(Node) ->
     rpc:call(Node,error_logger,add_report_handler,[?MODULE,[self()]]).
 
 
+warning_map(Node) ->
+    rpc:call(Node,error_logger,warning_map,[]).
+
 format(Node,A,B) ->
     rpc:call(Node,error_logger,format,[A,B]).
 error_msg(Node,A,B) ->
@@ -185,19 +188,20 @@ basic() ->
     ?line ok = install_relay(Node),
     ?line Self = self(),
     ?line GL = group_leader(),
+    ?line warning = warning_map(Node),
     ?line format(Node,"~p~n",[Self]),
     ?line ?EXPECT({handle_event,{error,GL,{_,"~p~n",[Self]}}}),
     ?line error_msg(Node,"~p~n",[Self]),
     ?line ?EXPECT({handle_event,{error,GL,{_,"~p~n",[Self]}}}),
     ?line warning_msg(Node,"~p~n",[Self]),
-    ?line ?EXPECT({handle_event,{error,GL,{_,"~p~n",[Self]}}}),
+    ?line ?EXPECT({handle_event,{warning_msg,GL,{_,"~p~n",[Self]}}}),
     ?line info_msg(Node,"~p~n",[Self]),
     ?line ?EXPECT({handle_event,{info_msg,GL,{_,"~p~n",[Self]}}}),
     ?line Report = [{self,Self},{gl,GL},make_ref()],
     ?line error_report(Node,Report),
     ?line ?EXPECT({handle_event,{error_report,GL,{_,std_error,Report}}}),
     ?line warning_report(Node,Report),
-    ?line ?EXPECT({handle_event,{error_report,GL,{_,std_error,Report}}}),
+    ?line ?EXPECT({handle_event,{warning_report,GL,{_,std_warning,Report}}}),
     ?line info_report(Node,Report),
     ?line ?EXPECT({handle_event,{info_report,GL,{_,std_info,Report}}}),
 
@@ -209,6 +213,7 @@ warnings_info() ->
     ?line ok = install_relay(Node),
     ?line Self = self(),
     ?line GL = group_leader(),
+    ?line info = warning_map(Node),
     ?line Report = [{self,Self},{gl,GL},make_ref()],
     ?line warning_msg(Node,"~p~n",[Self]),
     ?line ?EXPECT({handle_event,{info_msg,GL,{_,"~p~n",[Self]}}}),
@@ -217,16 +222,17 @@ warnings_info() ->
     ?line stop_node(Node),
     ok.
 
-warnings_warnings() ->    
-    ?line Node = start_node(nn(),"+Ww"),
+warnings_errors() ->    
+    ?line Node = start_node(nn(),"+We"),
     ?line ok = install_relay(Node),
     ?line Self = self(),
     ?line GL = group_leader(),
+    ?line error = warning_map(Node),
     ?line Report = [{self,Self},{gl,GL},make_ref()],
     ?line warning_msg(Node,"~p~n",[Self]),
-    ?line ?EXPECT({handle_event,{warning_msg,GL,{_,"~p~n",[Self]}}}),
+    ?line ?EXPECT({handle_event,{error,GL,{_,"~p~n",[Self]}}}),
     ?line warning_report(Node,Report),
-    ?line ?EXPECT({handle_event,{warning_report,GL,{_,std_warning,Report}}}),
+    ?line ?EXPECT({handle_event,{error_report,GL,{_,std_error,Report}}}),
     ?line stop_node(Node),
     ok.
     
@@ -356,6 +362,7 @@ rb_basic() ->
 		      "error_logger_mf_maxfiles 5"),
     ?line Self = self(),
     ?line GL = group_leader(),
+    ?line warning = warning_map(Node),
     ?line Report = [{self,Self},{gl,GL},make_ref()],
     ?line fake_gl(Node,warning_msg,"~p~n",[Self]),
     ?line fake_gl(Node,warning_report,Report),
@@ -363,10 +370,14 @@ rb_basic() ->
     ?line application:start(sasl),
     ?line rb:start([{report_dir, rd()}]),
     ?line rb:list(),
-    ?line true = (one_rb_lines([error]) > 1),
-    ?line true = (one_rb_lines([error_report]) > 1),
-    ?line 1 = one_rb_findstr([error],pid_to_list(Self)),
-    ?line 1 = one_rb_findstr([error_report],pid_to_list(Self)),
+    ?line true = (one_rb_lines([error]) =:= 0),
+    ?line true = (one_rb_lines([error_report]) =:= 0),
+    ?line 0 = one_rb_findstr([error],pid_to_list(Self)),
+    ?line 0 = one_rb_findstr([error_report],pid_to_list(Self)),
+    ?line 1 = one_rb_findstr([warning_msg],pid_to_list(Self)),
+    ?line 1 = one_rb_findstr([warning_report],pid_to_list(Self)),
+    ?line 0 = one_rb_findstr([info_msg],pid_to_list(Self)),
+    ?line 0 = one_rb_findstr([info_report],pid_to_list(Self)),
     ?line 2 = one_rb_findstr([],pid_to_list(Self)),
     ?line true = (one_rb_findstr([progress],"===") > 4),
     ?line rb:stop(),
@@ -381,6 +392,7 @@ rb_warnings_info() ->
 		      "error_logger_mf_maxfiles 5"),
     ?line Self = self(),
     ?line GL = group_leader(),
+    ?line info = warning_map(Node),
     ?line Report = [{self,Self},{gl,GL},make_ref()],
     ?line fake_gl(Node,warning_msg,"~p~n",[Self]),
     ?line fake_gl(Node,warning_report,Report),
@@ -403,13 +415,14 @@ rb_warnings_info() ->
     ?line stop_node(Node),
     ok.
 
-rb_warnings_warnings() ->
+rb_warnings_errors() ->
     ?line clean_rd(),
-    ?line Node = start_node(nn(),"+W w -boot start_sasl -sasl error_logger_mf_dir "++
+    ?line Node = start_node(nn(),"+W e -boot start_sasl -sasl error_logger_mf_dir "++
 		      quote(rd())++" error_logger_mf_maxbytes 5000 "
 		      "error_logger_mf_maxfiles 5"),
     ?line Self = self(),
     ?line GL = group_leader(),
+    ?line error = warning_map(Node),
     ?line Report = [{self,Self},{gl,GL},make_ref()],
     ?line fake_gl(Node,warning_msg,"~p~n",[Self]),
     ?line fake_gl(Node,warning_report,Report),
@@ -417,12 +430,12 @@ rb_warnings_warnings() ->
     ?line application:start(sasl),
     ?line rb:start([{report_dir, rd()}]),
     ?line rb:list(),
-    ?line true = (one_rb_lines([error]) =:= 0),
-    ?line true = (one_rb_lines([error_report]) =:= 0),
-    ?line 0 = one_rb_findstr([error],pid_to_list(Self)),
-    ?line 0 = one_rb_findstr([error_report],pid_to_list(Self)),
-    ?line 1 = one_rb_findstr([warning_msg],pid_to_list(Self)),
-    ?line 1 = one_rb_findstr([warning_report],pid_to_list(Self)),
+    ?line true = (one_rb_lines([error]) > 1),
+    ?line true = (one_rb_lines([error_report]) > 1),
+    ?line 1 = one_rb_findstr([error],pid_to_list(Self)),
+    ?line 1 = one_rb_findstr([error_report],pid_to_list(Self)),
+    ?line 0 = one_rb_findstr([warning_msg],pid_to_list(Self)),
+    ?line 0 = one_rb_findstr([warning_report],pid_to_list(Self)),
     ?line 0 = one_rb_findstr([info_msg],pid_to_list(Self)),
     ?line 0 = one_rb_findstr([info_report],pid_to_list(Self)),
     ?line 2 = one_rb_findstr([],pid_to_list(Self)),
@@ -434,7 +447,7 @@ rb_warnings_warnings() ->
 
 rb_trunc() ->
     ?line clean_rd(),
-    ?line Node = start_node(nn(),"+W w -boot start_sasl -sasl error_logger_mf_dir "++
+    ?line Node = start_node(nn(),"-boot start_sasl -sasl error_logger_mf_dir "++
 		      quote(rd())++" error_logger_mf_maxbytes 5000 "
 		      "error_logger_mf_maxfiles 5"),
     ?line Self = self(),
@@ -467,7 +480,7 @@ rb_trunc() ->
 
 rb_utc() ->
     ?line clean_rd(),
-    ?line Node = start_node(nn(),"+W w -boot start_sasl -sasl error_logger_mf_dir "++
+    ?line Node = start_node(nn(),"-boot start_sasl -sasl error_logger_mf_dir "++
 		      quote(rd())++" error_logger_mf_maxbytes 5000 "
 		      "error_logger_mf_maxfiles 5 -sasl utc_log true"),
     ?line Self = self(),
@@ -500,7 +513,7 @@ rb_utc() ->
     
 file_utc() ->
     ?line file:delete(lf()),
-    ?line SS="+W w -stdlib utc_log true -kernel error_logger "++ oquote("{file,"++iquote(lf())++"}"),
+    ?line SS="-stdlib utc_log true -kernel error_logger "++ oquote("{file,"++iquote(lf())++"}"),
     %erlang:display(SS),
     ?line Node = start_node(nn(),SS),
     %erlang:display(rpc:call(Node,application,get_env,[kernel,error_logger])),
diff --git a/lib/kernel/test/file_SUITE.erl b/lib/kernel/test/file_SUITE.erl
index 2ce2303ba3..48abc92e4c 100644
--- a/lib/kernel/test/file_SUITE.erl
+++ b/lib/kernel/test/file_SUITE.erl
@@ -93,6 +93,8 @@
 
 -export([old_io_protocol/1]).
 
+-export([unicode_mode/1]).
+
 %% Debug exports
 -export([create_file_slow/2, create_file/2, create_bin/2]).
 -export([verify_file/2, verify_bin/3]).
@@ -105,6 +107,7 @@
 -include_lib("test_server/include/test_server.hrl").
 -include_lib("kernel/include/file.hrl").
 
+-define(THROW_ERROR(RES), throw({fail, ?LINE, RES})).
 
 
 suite() -> [{ct_hooks,[ts_install_cth]}].
@@ -116,7 +119,9 @@ all() ->
      delayed_write, read_ahead, segment_read, segment_write,
      ipread, pid2name, interleaved_read_write, otp_5814, otp_10852,
      large_file, large_write, read_line_1, read_line_2, read_line_3,
-     read_line_4, standard_io, old_io_protocol].
+     read_line_4, standard_io, old_io_protocol,
+     unicode_mode
+    ].
 
 groups() -> 
     [{dirs, [], [make_del_dir, cur_dir_0, cur_dir_1,
@@ -347,7 +352,152 @@ old_io_protocol(Config) when is_list(Config) ->
     [] = flush(),
     ok.
 
+unicode_mode(suite) -> [];
+unicode_mode(doc) -> [""];
+unicode_mode(Config) ->
+    Dir = {dir, ?config(priv_dir,Config)},
+    OptVariants = [[Dir],
+		   [Dir, {encoding, utf8}],
+		   [Dir, binary],
+		   [Dir, binary, {encoding, utf8}]
+		  ],
+    ReadVariants = [{read, fun(Fd) -> um_read(Fd, fun(Fd1) -> file:read(Fd1, 1024) end) end},
+		    {read_line, fun(Fd) -> um_read(Fd, fun(Fd1) -> file:read_line(Fd1) end) end}
+		    %%{pread, fun(Fd) -> file:pread(Fd, 0, 1024) end},
+		    %%{preadl, fun(Fd) -> file:pread(Fd, [{0, 1024}]) end},
+		   ],
+
+    _ = [read_write_0("ASCII: list:  Hello World", Read, Opt) ||
+	    Opt <- OptVariants, Read <- ReadVariants],
+    _ = [read_write_0("LATIN1: list: åäöÅÄÖ", Read, Opt) ||
+	    Opt <- OptVariants, Read <- ReadVariants],
+    _ = [read_write_0(<<"ASCII: bin: Hello World">>, Read, Opt) ||
+	    Opt <- OptVariants, Read <- ReadVariants],
+    _ = [read_write_0(<<"LATIN1: bin: åäöÅÄÖ">>, Read, Opt) ||
+	    Opt <- OptVariants, Read <- ReadVariants],
+    %% These will be double encoded if option is encoding utf-8
+    _ = [read_write_0(<<"UTF8: bin: Ωß"/utf8>>, Read, Opt) ||
+	    Opt <- OptVariants, Read <- ReadVariants],
+    %% These should not work (with encoding set to utf-8)
+    %%   according to file's documentation
+    _ = [read_write_0("UTF8: list: Ωß", Read, Opt) ||
+	    Opt <- OptVariants, Read <- ReadVariants],
+    ok.
+
+read_write_0(Str, {Func, ReadFun}, Options) ->
+    try
+	Res = read_write_1(Str, ReadFun, Options),
+	io:format("~p: ~ts ~p '~p'~n", [Func, Str, tl(Options), Res]),
+	ok
+    catch {fail, Line, ReadBytes = [_|_]} ->
+	    io:format("~p:~p: ~p ERROR: ~w vs~n             ~w~n  - ~p~n",
+		      [?MODULE, Line, Func, Str, ReadBytes, Options]),
+	    exit({error, ?LINE});
+	  {fail, Line, ReadBytes} ->
+	    io:format("~p:~p: ~p ERROR: ~ts vs~n             ~w~n  - ~p~n",
+		      [?MODULE, Line, Func, Str, ReadBytes, Options]),
+	    exit({error, ?LINE});
+	  error:What ->
+	    io:format("~p:??: ~p ERROR: ~p from~n  ~w~n  ~p~n",
+		      [?MODULE, Func, What, Str, Options]),
+
+	    io:format("\t~p~n", [erlang:get_stacktrace()]),
+	    exit({error, ?LINE})
+    end.
+
+read_write_1(Str0, ReadFun, [{dir,Dir}|Options]) ->
+    File = um_filename(Str0, Dir, Options),
+    Pre = "line 1\n", Post = "\nlast line\n",
+    Str = case is_list(Str0) andalso lists:max(Str0) > 255 of
+	      false ->  %% Normal case Use options
+		  {ok, FdW} = file:open(File, [write|Options]),
+		  IO = [Pre, Str0, Post],
+		  ok = file:write(FdW, IO),
+		  case is_binary(Str0) of
+		      true -> iolist_to_binary(IO);
+		      false -> lists:append(IO)
+		  end;
+	      true -> %% Test unicode lists
+		  {ok, FdW} = file:open(File, [write]),
+		  Utf8 = unicode:characters_to_binary([Pre, Str0, Post]),
+		  file:write(FdW, Utf8),
+		  {unicode, Utf8}
+	  end,
+    file:close(FdW),
+    {ok, FdR} = file:open(File, [read|Options]),
+    ReadRes = ReadFun(FdR),
+    file:close(FdR),
+    Res = um_check(Str, ReadRes, Options),
+    file:delete(File),
+    Res.
+
+
+um_read(Fd, Fun) ->
+    um_read(Fd, Fun, []).
+
+um_read(Fd, Fun, Acc) ->
+    case Fun(Fd) of
+	eof ->
+	    case is_binary(hd(Acc)) of
+		true  -> {ok, iolist_to_binary(lists:reverse(Acc))};
+		false -> {ok, lists:append(lists:reverse(Acc))}
+	    end;
+	{ok, Data} ->
+	    um_read(Fd, Fun, [Data|Acc]);
+	Error ->
+	    Error
+    end.
+
 
+um_check(Str, {ok, Str}, _) -> ok;
+um_check(Bin, {ok, Res}, _Options) when is_binary(Bin), is_list(Res) ->
+    case list_to_binary(Res) of
+	Bin -> ok;
+	_ -> ?THROW_ERROR(Res)
+    end;
+um_check(Str, {ok, Res}, _Options) when is_list(Str), is_binary(Res) ->
+    case iolist_to_binary(Str) of
+	Res -> ok;
+	_ -> ?THROW_ERROR(Res)
+    end;
+um_check({unicode, Utf8Bin}, Res, Options) ->
+    um_check_unicode(Utf8Bin, Res,
+		     proplists:get_value(binary, Options, false),
+		     proplists:get_value(encoding, Options, none));
+um_check(_Str, Res, _Options) ->
+    ?THROW_ERROR(Res).
+
+um_check_unicode(Utf8Bin, {ok, Utf8Bin}, true, none) ->
+    ok;
+um_check_unicode(Utf8Bin, {ok, List = [_|_]}, false, none) ->
+    case binary_to_list(Utf8Bin) == List of
+	true -> ok;
+	false -> ?THROW_ERROR(List)
+    end;
+um_check_unicode(_Utf8Bin, {error, {no_translation, unicode, latin1}}, _, _) ->
+    no_translation;
+um_check_unicode(_Utf8Bin, Error = {error, _}, _, _Unicode) ->
+    ?THROW_ERROR(Error);
+um_check_unicode(_Utf8Bin, {ok, _ListOrBin}, _, _UTF8_) ->
+    %% List = if is_binary(ListOrBin) -> unicode:characters_to_list(ListOrBin);
+    %% 	      true -> ListOrBin
+    %% 	   end,
+    %% io:format("In: ~w~n", [binary_to_list(Utf8Bin)]),
+    %% io:format("Ut: ~w~n", [List]),
+    ?THROW_ERROR({shoud_be, no_translation}).
+
+um_filename(Bin, Dir, Options) when is_binary(Bin) ->
+    um_filename(binary_to_list(Bin), Dir, Options);
+um_filename(Str = [_|_], Dir, Options) ->
+    Name = hd(string:tokens(Str, ":")),
+    Enc = atom_to_list(proplists:get_value(encoding, Options, latin1)),
+    File = case lists:member(binary, Options) of
+	       true ->
+		   "test_" ++ Name ++ "_bin_enc_" ++ Enc;
+	       false ->
+		   "test_" ++ Name ++ "_list_enc_" ++ Enc
+	   end,
+    filename:join(Dir, File).
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
@@ -3764,7 +3914,7 @@ response_analysis(Module, Function, Arguments) ->
 		  receive {Parent, start, Ts} -> ok end,
 		  Stat = 
 		      iterate(response_stat(response_stat(init, Ts),
-					    erlang:now()), 
+					    micro_ts()),
 			      done,
 			      fun (S) ->
 				      erlang:yield(),
@@ -3772,12 +3922,12 @@ response_analysis(Module, Function, Arguments) ->
 					  {Parent, stop} ->
 					      done
 				      after 0 ->
-					      response_stat(S, erlang:now())
+					      response_stat(S, micro_ts())
 				      end
 			      end),
-		  Parent ! {self(), stopped, response_stat(Stat, erlang:now())}
+		  Parent ! {self(), stopped, response_stat(Stat, micro_ts())}
 	  end),
-    ?line Child ! {Parent, start, erlang:now()},
+    Child ! {Parent, start, micro_ts()},
     ?line Result = apply(Module, Function, Arguments),
     ?line Child ! {Parent, stop},
     ?line {N, Sum, _, M, Max} = receive {Child, stopped, X} -> X end,
@@ -3791,12 +3941,13 @@ response_analysis(Module, Function, Arguments) ->
 	    [Mean_ms, Max_ms, M, (N-1)])),
     ?line {Result, Comment}.
     
-
+micro_ts() ->
+    erlang:monotonic_time(micro_seconds).
 
 response_stat(init, Ts) ->
     {0, 0, Ts, 0, 0};
-response_stat({N, Sum, {A1, B1, C1}, M, Max}, {A2, B2, C2} = Ts) ->
-    D = C2-C1 + 1000000*((B2-B1) + 1000000*(A2-A1)),
+response_stat({N, Sum, Ts0, M, Max}, Ts) ->
+    D = Ts - Ts0,
     if D > Max ->
 	    {N+1, Sum+D, Ts, N, D};
        true ->
diff --git a/lib/kernel/test/gen_tcp_api_SUITE.erl b/lib/kernel/test/gen_tcp_api_SUITE.erl
index c27d265550..4a527e2f51 100644
--- a/lib/kernel/test/gen_tcp_api_SUITE.erl
+++ b/lib/kernel/test/gen_tcp_api_SUITE.erl
@@ -32,6 +32,7 @@
 	 t_connect_bad/1,
 	 t_recv_timeout/1, t_recv_eof/1,
 	 t_shutdown_write/1, t_shutdown_both/1, t_shutdown_error/1,
+	 t_shutdown_async/1,
 	 t_fdopen/1, t_fdconnect/1, t_implicit_inet6/1]).
 
 -export([getsockfd/0,closesockfd/1]).
@@ -41,7 +42,7 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
 all() -> 
     [{group, t_accept}, {group, t_connect}, {group, t_recv},
      t_shutdown_write, t_shutdown_both, t_shutdown_error,
-     t_fdopen, t_fdconnect, t_implicit_inet6].
+     t_shutdown_async, t_fdopen, t_fdconnect, t_implicit_inet6].
 
 groups() -> 
     [{t_accept, [], [t_accept_timeout]},
@@ -155,7 +156,34 @@ t_shutdown_error(Config) when is_list(Config) ->
     ?line ok = gen_tcp:close(L),
     ?line {error, closed} = gen_tcp:shutdown(L, read_write),
     ok.
-    
+
+t_shutdown_async(Config) when is_list(Config) ->
+    ?line {OS, _} = os:type(),
+    ?line {ok, L} = gen_tcp:listen(0, [{sndbuf, 4096}]),
+    ?line {ok, Port} = inet:port(L),
+    ?line {ok, Client} = gen_tcp:connect(localhost, Port,
+					 [{recbuf, 4096},
+					  {active, false}]),
+    ?line {ok, S} = gen_tcp:accept(L),
+    ?line PayloadSize = 1024 * 1024,
+    ?line Payload = lists:duplicate(PayloadSize, $.),
+    ?line ok = gen_tcp:send(S, Payload),
+    ?line case erlang:port_info(S, queue_size) of
+	      {queue_size, N} when N > 0 -> ok;
+	      {queue_size, 0} when OS =:= win32 -> ok;
+	      {queue_size, 0} = T -> ?t:fail({unexpected, T})
+	  end,
+
+    ?line ok = gen_tcp:shutdown(S, write),
+    ?line {ok, Buf} = gen_tcp:recv(Client, PayloadSize),
+    ?line {error, closed} = gen_tcp:recv(Client, 0),
+    ?line case length(Buf) of
+	      PayloadSize -> ok;
+	      Sz -> ?t:fail({payload_size,
+			     {expected, PayloadSize},
+			     {received, Sz}})
+	  end.
+
 
 %%% gen_tcp:fdopen/2
 
diff --git a/lib/kernel/test/gen_tcp_misc_SUITE.erl b/lib/kernel/test/gen_tcp_misc_SUITE.erl
index 4e4aeb67e2..4f0d7a7d50 100644
--- a/lib/kernel/test/gen_tcp_misc_SUITE.erl
+++ b/lib/kernel/test/gen_tcp_misc_SUITE.erl
@@ -60,19 +60,19 @@ init_per_testcase(wrapping_oct, Config) when is_list(Config) ->
     [{watchdog, Dog}|Config];
 init_per_testcase(iter_max_socks, Config) when is_list(Config) ->
     Dog = case os:type() of
-	      {win32,_} ->
-		  test_server:timetrap(test_server:minutes(30));
-	      _Else ->
-		  test_server:timetrap(test_server:seconds(240))
-	  end,
+              {win32,_} ->
+                  test_server:timetrap(test_server:minutes(30));
+              _Else ->
+                  test_server:timetrap(test_server:seconds(240))
+          end,
     [{watchdog, Dog}|Config];
 init_per_testcase(accept_system_limit, Config) when is_list(Config) ->
     case os:type() of
-      {ose,_} -> 
-          {skip,"Skip in OSE"};
-      _ -> 
-          Dog = test_server:timetrap(test_server:seconds(240)),
-          [{watchdog,Dog}|Config]
+        {ose,_} ->
+            {skip,"Skip in OSE"};
+        _ ->
+            Dog = test_server:timetrap(test_server:seconds(240)),
+            [{watchdog,Dog}|Config]
     end;
 init_per_testcase(wrapping_oct, Config) when is_list(Config) ->
     Dog = test_server:timetrap(test_server:seconds(600)),
@@ -121,8 +121,6 @@ init_per_group(_GroupName, Config) ->
 end_per_group(_GroupName, Config) ->
     Config.
 
-
-
 default_options(doc) ->
     ["Tests kernel application variables inet_default_listen_options and "
      "inet_default_connect_options"];
@@ -130,69 +128,68 @@ default_options(suite) ->
     [];
 default_options(Config) when is_list(Config) ->
     %% First check the delay_send option
-    ?line {true,true,true}=do_delay_send_1(),
-    ?line {false,false,false}=do_delay_send_2(),
-    ?line {true,false,false}=do_delay_send_3(),
-    ?line {false,false,false}=do_delay_send_4(),
-    ?line {false,false,false}=do_delay_send_5(),
-    ?line {false,true,true}=do_delay_send_6(),
+    {true,true,true}=do_delay_send_1(),
+    {false,false,false}=do_delay_send_2(),
+    {true,false,false}=do_delay_send_3(),
+    {false,false,false}=do_delay_send_4(),
+    {false,false,false}=do_delay_send_5(),
+    {false,true,true}=do_delay_send_6(),
     %% Now lets start some nodes with different combinations of options:
-    ?line {true,true,true} = do_delay_on_other_node("",
-						    fun do_delay_send_1/0),
-    ?line {true,false,false} = 
+    {true,true,true} = do_delay_on_other_node("", fun do_delay_send_1/0),
+    {true,false,false} =
 	do_delay_on_other_node("-kernel inet_default_connect_options "
 			       "\"[{delay_send,true}]\"",
 			       fun do_delay_send_2/0),
     
-    ?line {false,true,true} = 
+    {false,true,true} =
 	do_delay_on_other_node("-kernel inet_default_listen_options "
 			       "\"[{delay_send,true}]\"",
 			       fun do_delay_send_2/0),
     
-    ?line {true,true,true} = 
+    {true,true,true} =
 	do_delay_on_other_node("-kernel inet_default_listen_options "
 			       "\"[{delay_send,true}]\"",
 			       fun do_delay_send_3/0),
-    ?line {true,true,true} = 
+    {true,true,true} =
 	do_delay_on_other_node("-kernel inet_default_connect_options "
 			       "\"[{delay_send,true}]\"",
 			       fun do_delay_send_6/0),
-    ?line {false,false,false} = 
+    {false,false,false} =
 	do_delay_on_other_node("-kernel inet_default_connect_options "
 			       "\"[{delay_send,true}]\"",
 			       fun do_delay_send_5/0),
-    ?line {false,true,true} = 
+    {false,true,true} =
 	do_delay_on_other_node("-kernel inet_default_connect_options "
 			       "\"[{delay_send,true}]\" "
 			       "-kernel inet_default_listen_options "
 			       "\"[{delay_send,true}]\"",
 			       fun do_delay_send_5/0),
-    ?line {true,false,false} = 
+    {true,false,false} =
 	do_delay_on_other_node("-kernel inet_default_connect_options "
 			       "\"[{delay_send,true}]\" "
 			       "-kernel inet_default_listen_options "
 			       "\"[{delay_send,true}]\"",
 			       fun do_delay_send_4/0),
-    ?line {true,true,true} = 
+    {true,true,true} =
 	do_delay_on_other_node("-kernel inet_default_connect_options "
 			       "\"{delay_send,true}\" "
 			       "-kernel inet_default_listen_options "
 			       "\"{delay_send,true}\"",
 			       fun do_delay_send_2/0),
     %% Active is to dangerous and is supressed
-    ?line {true,true,true} = 
+    {true,true,true} =
 	do_delay_on_other_node("-kernel inet_default_connect_options "
 			       "\"{active,false}\" "
 			       "-kernel inet_default_listen_options "
 			       "\"{active,false}\"",
 			       fun do_delay_send_7/0),
-    ?line {true,true,true} = 
+    {true,true,true} =
 	do_delay_on_other_node("-kernel inet_default_connect_options "
 			       "\"[{active,false},{delay_send,true}]\" "
 			       "-kernel inet_default_listen_options "
 			       "\"[{active,false},{delay_send,true}]\"",
 			       fun do_delay_send_7/0),
-    ?line {true,true,true} = 
+    {true,true,true} =
 	do_delay_on_other_node("-kernel inet_default_connect_options "
 			       "\"[{active,false},{delay_send,true}]\" "
 			       "-kernel inet_default_listen_options "
@@ -204,12 +201,10 @@ default_options(Config) when is_list(Config) ->
 do_delay_on_other_node(XArgs, Function) ->
     Dir = filename:dirname(code:which(?MODULE)),
     {ok,Node} = test_server:start_node(test_default_options_slave,slave,
-				       [{args,"-pa " ++ Dir ++ " " ++
-					 XArgs}]),
+                                       [{args,"-pa " ++ Dir ++ " " ++ XArgs}]),
     Res = rpc:call(Node,erlang,apply,[Function,[]]),
     test_server:stop_node(Node),
     Res.
-					      
 
 do_delay_send_1() ->
     {ok,LS}=gen_tcp:listen(0,[{delay_send,true}]),
@@ -301,8 +296,6 @@ do_delay_send_7() ->
     gen_tcp:close(S),
     gen_tcp:close(LS),
     {B1,B2,B3}.
-    
- 
 
 controlling_process(doc) ->
     ["Open a listen port and change controlling_process for it",
@@ -313,18 +306,18 @@ controlling_process(Config) when is_list(Config) ->
     {ok,S} = gen_tcp:listen(0,[]),
     Pid2 = spawn(?MODULE,not_owner,[S]),
     Pid2 ! {self(),2,control},
-    ?line {error, E} = receive {2,_E} ->
+    {error, E} = receive {2,_E} ->
 			      _E
 		      after 10000 -> timeout
 		      end,
     io:format("received ~p~n",[E]),
     Pid = spawn(?MODULE,not_owner,[S]),
-    ?line ok = gen_tcp:controlling_process(S,Pid),
+    ok = gen_tcp:controlling_process(S,Pid),
     Pid ! {self(),1,control},
-    ?line ok = receive {1,ok} ->
-		       ok
-	       after 1000 -> timeout
-	       end,
+    ok = receive {1,ok} ->
+                     ok
+         after 1000 -> timeout
+         end,
     Pid ! close.
 
 not_owner(S) ->
@@ -377,7 +370,7 @@ no_accept(Config) when is_list(Config) ->
         {tcp_closed, Client} ->
             ok
     after 5000 ->
-            ?line test_server:fail(never_closed)
+            test_server:fail(never_closed)
     
     end.
 
@@ -386,30 +379,30 @@ close_with_pending_output(doc) ->
      "to the other end."];
 close_with_pending_output(suite) -> [];
 close_with_pending_output(Config) when is_list(Config) ->
-    ?line {ok, L} = gen_tcp:listen(0, [binary, {active, false}]),
-    ?line {ok, {_, Port}} = inet:sockname(L),
-    ?line Packets = 16,
-    ?line Total = 2048*Packets,
+    {ok, L} = gen_tcp:listen(0, [binary, {active, false}]),
+    {ok, {_, Port}} = inet:sockname(L),
+    Packets = 16,
+    Total = 2048*Packets,
     case start_remote(close_pending) of
 	{ok, Node} ->
-	    ?line {ok, Host} = inet:gethostname(),
-	    ?line spawn_link(Node, ?MODULE, sender, [Port, Packets, Host]),
-	    ?line {ok, A} = gen_tcp:accept(L),
-	    ?line case gen_tcp:recv(A, Total) of
+	    {ok, Host} = inet:gethostname(),
+	    spawn_link(Node, ?MODULE, sender, [Port, Packets, Host]),
+	    {ok, A} = gen_tcp:accept(L),
+	    case gen_tcp:recv(A, Total) of
 		      {ok, Bin} when byte_size(Bin) == Total ->
 			  gen_tcp:close(A),
 			  gen_tcp:close(L);
 		      {ok, Bin} ->
-			  ?line test_server:fail({small_packet, 
+			  test_server:fail({small_packet,
                                                   byte_size(Bin)});
 		      Error ->
-			  ?line test_server:fail({unexpected, Error})
+			  test_server:fail({unexpected, Error})
 		  end,
 	    ok;
 	{error, no_remote_hosts} ->
 	    {skipped,"No remote hosts"};
 	{error, Other} ->
-	    ?line ?t:fail({failed_to_start_slave_node, Other})
+	    ?t:fail({failed_to_start_slave_node, Other})
     end.
 
 sender(Port, Packets, Host) ->
@@ -556,63 +549,62 @@ otp_3924(Config) when is_list(Config) ->
     otp_3924_1(MaxDelay).
 
 otp_3924_1(MaxDelay) ->
-    ?line {ok, Node} = start_node(otp_3924),
-    ?line DataLen = 100*1024,
-    ?line Data = otp_3924_data(DataLen),
+    {ok, Node} = start_node(otp_3924),
+    DataLen = 100*1024,
+    Data = otp_3924_data(DataLen),
     % Repeat the test a couple of times to prevent the test from passing
     % by chance.
-    repeat(10,
-	   fun (N) ->
-		   ?line ok = otp_3924(MaxDelay, Node, Data, DataLen, N)
-	   end),
-    ?line test_server:stop_node(Node),
+    repeat(10, fun(N) ->
+                       ok = otp_3924(MaxDelay, Node, Data, DataLen, N)
+               end),
+    test_server:stop_node(Node),
     ok.
 
 otp_3924(MaxDelay, Node, Data, DataLen, N) ->
-    ?line {ok, L} = gen_tcp:listen(0, [list, {active, false}]),
-    ?line {ok, {_, Port}} = inet:sockname(L),
-    ?line {ok, Host} = inet:gethostname(),
-    ?line Sender = spawn_link(Node,
-			      ?MODULE,
-			      otp_3924_sender,
-			      [self(), Host, Port, Data]),
-    ?line Data = otp_3924_receive_data(L, Sender, MaxDelay, DataLen, N),
-    ?line ok = gen_tcp:close(L).
+    {ok, L} = gen_tcp:listen(0, [list, {active, false}]),
+    {ok, {_, Port}} = inet:sockname(L),
+    {ok, Host} = inet:gethostname(),
+    Sender = spawn_link(Node,
+                        ?MODULE,
+                        otp_3924_sender,
+                        [self(), Host, Port, Data]),
+    Data = otp_3924_receive_data(L, Sender, MaxDelay, DataLen, N),
+    ok = gen_tcp:close(L).
 
 otp_3924_receive_data(LSock, Sender, MaxDelay, Len, N) ->
-    ?line OP = process_flag(priority, max),
-    ?line OTE = process_flag(trap_exit, true),
-    ?line TimeoutRef = make_ref(),
-    ?line Data = (catch begin
-			    ?line Sender ! start,
-			    ?line {ok, Sock} = gen_tcp:accept(LSock),
-			    ?line D = otp_3924_receive_data(Sock,
-							    TimeoutRef,
-							    MaxDelay,
-							    Len,
-							    [],
-							    0),
-			    ?line ok = gen_tcp:close(Sock),
-			    D
-			end),
-    ?line unlink(Sender),
-    ?line process_flag(trap_exit, OTE),
-    ?line process_flag(priority, OP),
+    OP = process_flag(priority, max),
+    OTE = process_flag(trap_exit, true),
+    TimeoutRef = make_ref(),
+    Data = (catch begin
+                      Sender ! start,
+                      {ok, Sock} = gen_tcp:accept(LSock),
+                      D = otp_3924_receive_data(Sock,
+                                                TimeoutRef,
+                                                MaxDelay,
+                                                Len,
+                                                [],
+                                                0),
+                      ok = gen_tcp:close(Sock),
+                      D
+                  end),
+    unlink(Sender),
+    process_flag(trap_exit, OTE),
+    process_flag(priority, OP),
     receive
 	{'EXIT', _, TimeoutRef} ->
-	    ?line test_server:fail({close_not_fast_enough,MaxDelay,N});
+	    test_server:fail({close_not_fast_enough,MaxDelay,N});
 	{'EXIT', Sender, Reason} ->
-	    ?line test_server:fail({sender_exited, Reason});
+	    test_server:fail({sender_exited, Reason});
 	{'EXIT', _Other, Reason} ->
-	    ?line test_server:fail({linked_process_exited, Reason})
+	    test_server:fail({linked_process_exited, Reason})
     after 0 ->
 	    case Data of
 		{'EXIT', {A,B}} ->
-		    ?line test_server:fail({A,B,N});
+		    test_server:fail({A,B,N});
 		{'EXIT', Failure} ->
-		    ?line test_server:fail(Failure);
+		    test_server:fail(Failure);
 		_ ->
-		    ?line Data
+		    Data
 	    end
     end.
     
@@ -623,12 +615,12 @@ otp_3924_receive_data(Sock, TimeoutRef, MaxDelay, Len, Acc, AccLen) ->
 	    NewAccLen = AccLen + length(Data),
 	    if
 		NewAccLen == Len ->
-		    ?line {ok, TRef} = timer:exit_after(MaxDelay,
+		    {ok, TRef} = timer:exit_after(MaxDelay,
 							self(),
 							TimeoutRef),
-		    ?line {error, closed} = gen_tcp:recv(Sock, 0),
-		    ?line timer:cancel(TRef),
-		    ?line lists:flatten([Acc, Data]);
+		    {error, closed} = gen_tcp:recv(Sock, 0),
+		    timer:cancel(TRef),
+		    lists:flatten([Acc, Data]);
 		NewAccLen > Len ->
 		    exit({received_too_much, NewAccLen});
 		true ->
@@ -713,8 +705,8 @@ get_status(doc) ->
      "is called."];
 get_status(suite) -> [];
 get_status(Config) when is_list(Config) ->
-    ?line {ok,{socket,Pid,_,_}} = gen_tcp:listen(5678,[]),
-    ?line {status,Pid,_,_} = sys:get_status(Pid).
+    {ok,{socket,Pid,_,_}} = gen_tcp:listen(5678,[]),
+    {status,Pid,_,_} = sys:get_status(Pid).
 
 -define(RECOVER_SLEEP, 60000).
 -define(RETRY_SLEEP, 15000).
@@ -744,19 +736,19 @@ do_iter_max_socks(N, failed) ->
     MS = max_socks(),
     [MS|do_iter_max_socks(N-1, failed)];
 do_iter_max_socks(N, First) when is_integer(First) ->
-    ?line MS = max_socks(),
+    MS = max_socks(),
     if MS == First -> 
-	    ?line [MS|do_iter_max_socks(N-1, First)];
+	    [MS|do_iter_max_socks(N-1, First)];
        true ->
-	    ?line io:format("Sleeping for ~p seconds...~n",
+	    io:format("Sleeping for ~p seconds...~n",
 			    [?RETRY_SLEEP/1000]), 
-	    ?line ?t:sleep(?RETRY_SLEEP),
-	    ?line io:format("Trying again...~n", []),
-	    ?line RetryMS = max_socks(),
-	    ?line if RetryMS == First ->
-			  ?line [RetryMS|do_iter_max_socks(N-1, First)];
+	    ?t:sleep(?RETRY_SLEEP),
+	    io:format("Trying again...~n", []),
+	    RetryMS = max_socks(),
+	    if RetryMS == First ->
+			  [RetryMS|do_iter_max_socks(N-1, First)];
 		     true ->
-			  ?line [RetryMS|do_iter_max_socks(N-1, failed)]
+			  [RetryMS|do_iter_max_socks(N-1, failed)]
 		  end
     end.
 
@@ -768,7 +760,7 @@ all_equal([Rule | T]) ->
 all_equal(Rule, [Rule | T]) ->
     all_equal(Rule, T);
 all_equal(_, [_ | _]) ->
-    ?line ?t:sleep(?RECOVER_SLEEP), % Wait a while and *hope* that we'll
+    ?t:sleep(?RECOVER_SLEEP), % Wait a while and *hope* that we'll
                                     % recover so other tests won't be
                                     % affected.
     ?t:fail(max_socket_mismatch);
@@ -776,9 +768,9 @@ all_equal(_Rule, []) ->
     ok.
 
 max_socks() ->
-    ?line Socks = open_socks(),
-    ?line N = length(Socks),
-    ?line lists:foreach(fun(S) -> ok = gen_tcp:close(S) end, Socks),
+    Socks = open_socks(),
+    N = length(Socks),
+    lists:foreach(fun(S) -> ok = gen_tcp:close(S) end, Socks),
     io:format("Got ~p sockets", [N]),
     N.
 
@@ -817,18 +809,18 @@ passive_sockets(doc) ->
     ["Tests that when 'the other side' on a passive socket closes, the connecting",
      "side still can read until the end of data."];
 passive_sockets(Config) when is_list(Config) ->
-    ?line spawn_link(?MODULE, passive_sockets_server,
-		     [[{active,false}],self()]),
-    ?line receive
-	      {socket,Port} -> ok
-	  end,
+    spawn_link(?MODULE, passive_sockets_server,
+               [[{active,false}],self()]),
+    receive
+        {socket,Port} -> ok
+    end,
     ?t:sleep(500),
-    ?line case gen_tcp:connect("localhost", Port, [{active, false}]) of
-	      {ok, Sock} ->
-		  passive_sockets_read(Sock);
-	      Error ->
-		  ?t:fail({"Could not connect to server", Error})
-	  end.
+    case gen_tcp:connect("localhost", Port, [{active, false}]) of
+        {ok, Sock} ->
+            passive_sockets_read(Sock);
+        Error ->
+            ?t:fail({"Could not connect to server", Error})
+    end.
 
 %%
 %% Read until we get an {error, closed}. If we get another error, this test case
@@ -847,58 +839,58 @@ passive_sockets_read(Sock) ->
     end.
 
 passive_sockets_server(Opts, Parent) ->
-    ?line case gen_tcp:listen(0, Opts) of
-	      {ok, LSock} ->
-		  {ok,{_,Port}} = inet:sockname(LSock),
-		  Parent ! {socket,Port},
-		  passive_sockets_server_accept(LSock);
-	      Error ->
-		  ?t:fail({"Could not create listen socket", Error})
-	  end.
+    case gen_tcp:listen(0, Opts) of
+        {ok, LSock} ->
+            {ok,{_,Port}} = inet:sockname(LSock),
+            Parent ! {socket,Port},
+            passive_sockets_server_accept(LSock);
+        Error ->
+            ?t:fail({"Could not create listen socket", Error})
+    end.
 
 passive_sockets_server_accept(Sock) ->
-    ?line case gen_tcp:accept(Sock) of
-	      {ok, Socket} ->
-		  ?t:sleep(500),   % Simulate latency
-		  passive_sockets_server_send(Socket, 5),
-		  passive_sockets_server_accept(Sock);
-	      Error ->
-		  ?t:fail({"Could not accept connection", Error})
-	  end.
+    case gen_tcp:accept(Sock) of
+        {ok, Socket} ->
+            ?t:sleep(500),   % Simulate latency
+            passive_sockets_server_send(Socket, 5),
+            passive_sockets_server_accept(Sock);
+        Error ->
+            ?t:fail({"Could not accept connection", Error})
+    end.
 
 passive_sockets_server_send(Socket, 0) ->
     io:format("Closing other end..~n", []),
     gen_tcp:close(Socket);
 passive_sockets_server_send(Socket, X) ->
-    ?line Data = lists:duplicate(1024*X, $a),
-    ?line case gen_tcp:send(Socket, Data) of
-	      ok ->
-		  ?t:sleep(50),   % Simulate some processing.
-		  passive_sockets_server_send(Socket, X-1);
-	      {error, _Reason} ->
-		  ?t:fail("Failed to send data")
-	  end.
+    Data = lists:duplicate(1024*X, $a),
+    case gen_tcp:send(Socket, Data) of
+        ok ->
+            ?t:sleep(50),   % Simulate some processing.
+            passive_sockets_server_send(Socket, X-1);
+        {error, _Reason} ->
+            ?t:fail("Failed to send data")
+    end.
 
 
 accept_closed_by_other_process(doc) ->
     ["Tests the return value from gen_tcp:accept when ",
      "the socket is closed from another process. (OTP-3817)"];
 accept_closed_by_other_process(Config) when is_list(Config) ->
-    ?line Parent = self(),
-    ?line {ok, ListenSocket} = gen_tcp:listen(0, []),
-    ?line Child = 
+    Parent = self(),
+    {ok, ListenSocket} = gen_tcp:listen(0, []),
+    Child =
 	spawn_link(
 	  fun() ->
 		  Parent ! {self(), gen_tcp:accept(ListenSocket)}
 	  end),
-    ?line receive after 1000 -> ok end,
-    ?line ok = gen_tcp:close(ListenSocket),
-    ?line receive
-	      {Child, {error, closed}} ->
-		  ok;
-	      {Child, Other} ->
-		  ?t:fail({"Wrong result of gen_tcp:accept", Other})
-	  end.
+    receive after 1000 -> ok end,
+    ok = gen_tcp:close(ListenSocket),
+    receive
+        {Child, {error, closed}} ->
+            ok;
+        {Child, Other} ->
+            ?t:fail({"Wrong result of gen_tcp:accept", Other})
+    end.
 
 repeat(N, Fun) ->
     repeat(N, N, Fun).
@@ -915,9 +907,9 @@ closed_socket(suite) ->
 closed_socket(doc) ->
     ["Tests the response when using a closed socket as argument"];
 closed_socket(Config) when is_list(Config) ->
-    ?line {ok, LS1} = gen_tcp:listen(0, []),
-    ?line erlang:yield(),
-    ?line ok = gen_tcp:close(LS1),
+    {ok, LS1} = gen_tcp:listen(0, []),
+    erlang:yield(),
+    ok = gen_tcp:close(LS1),
     %% If the following delay is uncommented, the result error values
     %% below will change from {error, einval} to {error, closed} since
     %% inet_db then will have noticed that the socket is closed.
@@ -925,19 +917,18 @@ closed_socket(Config) when is_list(Config) ->
     %% in inet_db processes the 'EXIT' message from the port,
     %% the socket is unregistered.
     %%
-    %% ?line test_server:sleep(test_server:seconds(2)),
+    %% test_server:sleep(test_server:seconds(2)),
     %%
-    ?line {error, R_send} = gen_tcp:send(LS1, "data"),
-    ?line {error, R_recv} = gen_tcp:recv(LS1, 17),
-    ?line {error, R_accept} = gen_tcp:accept(LS1),
-    ?line {error, R_controlling_process} = 
+    {error, R_send} = gen_tcp:send(LS1, "data"),
+    {error, R_recv} = gen_tcp:recv(LS1, 17),
+    {error, R_accept} = gen_tcp:accept(LS1),
+    {error, R_controlling_process} =
 	gen_tcp:controlling_process(LS1, self()),
     %%
-    ?line ok = io:format("R_send = ~p~n", [R_send]),
-    ?line ok = io:format("R_recv = ~p~n", [R_recv]),
-    ?line ok = io:format("R_accept = ~p~n", [R_accept]),
-    ?line ok = io:format("R_controlling_process = ~p~n", 
-			 [R_controlling_process]),
+    ok = io:format("R_send = ~p~n", [R_send]),
+    ok = io:format("R_recv = ~p~n", [R_recv]),
+    ok = io:format("R_accept = ~p~n", [R_accept]),
+    ok = io:format("R_controlling_process = ~p~n", [R_controlling_process]),
     ok.
 
 %%%
@@ -945,28 +936,27 @@ closed_socket(Config) when is_list(Config) ->
 %%% 
 
 shutdown_active(Config) when is_list(Config) ->
-    ?line shutdown_common(true).
+    shutdown_common(true).
 
 shutdown_passive(Config) when is_list(Config) ->
-    ?line shutdown_common(false).
+    shutdown_common(false).
 
 shutdown_common(Active) ->
-    ?line P = sort_server(Active),
+    P = sort_server(Active),
     io:format("Sort server port: ~p\n", [P]),
 
-    ?line do_sort(P, []),
-    ?line do_sort(P, ["glurf"]),
-    ?line do_sort(P, ["abc","nisse","dum"]),
-
-    ?line do_sort(P, [lists:reverse(integer_to_list(I)) || I <- lists:seq(25, 255)]),
-    ?line do_sort(P, [lists:reverse(integer_to_list(I)) || I <- lists:seq(77, 999)]),
-    ?line do_sort(P, [lists:reverse(integer_to_list(I)) || I <- lists:seq(25, 55)]),
-    ?line do_sort(P, []),
-    ?line do_sort(P, ["apa"]),
-    ?line do_sort(P, ["kluns","gorilla"]),
-    ?line do_sort(P, [lists:reverse(integer_to_list(I)) || I <- lists:seq(25, 1233)]),
-    ?line do_sort(P, []),
-
+    do_sort(P, []),
+    do_sort(P, ["glurf"]),
+    do_sort(P, ["abc","nisse","dum"]),
+
+    do_sort(P, [lists:reverse(integer_to_list(I)) || I <- lists:seq(25, 255)]),
+    do_sort(P, [lists:reverse(integer_to_list(I)) || I <- lists:seq(77, 999)]),
+    do_sort(P, [lists:reverse(integer_to_list(I)) || I <- lists:seq(25, 55)]),
+    do_sort(P, []),
+    do_sort(P, ["apa"]),
+    do_sort(P, ["kluns","gorilla"]),
+    do_sort(P, [lists:reverse(integer_to_list(I)) || I <- lists:seq(25, 1233)]),
+    do_sort(P, []),
     receive
 	Any ->
 	    ?t:fail({unexpected_message,Any})
@@ -985,14 +975,14 @@ do_sort(P, List0) ->
 
 sort_server(Active) ->
     Opts = [{exit_on_close,false},{packet,line},{active,Active}],
-    ?line {ok,L} = gen_tcp:listen(0, Opts),
+    {ok,L} = gen_tcp:listen(0, Opts),
     Go = make_ref(),
-    ?line Pid = spawn_link(fun() ->
-				   receive Go -> sort_server_1(L, Active) end
-			   end),
-    ?line ok = gen_tcp:controlling_process(L, Pid),
-    ?line Pid ! Go,
-    ?line {ok,Port} = inet:port(L),
+    Pid = spawn_link(fun() ->
+                             receive Go -> sort_server_1(L, Active) end
+                     end),
+    ok = gen_tcp:controlling_process(L, Pid),
+    Pid ! Go,
+    {ok,Port} = inet:port(L),
     Port.
 
 sort_server_1(L, Active) ->
@@ -1042,17 +1032,17 @@ shutdown_pending(Config) when is_list(Config) ->
     Data = [<<N:32>>,ones(N),42],
     P = a_server(),
     io:format("Server port: ~p\n", [P]),
-    ?line {ok,S} = gen_tcp:connect(localhost, P, []),
-    ?line gen_tcp:send(S, Data),
-    ?line gen_tcp:shutdown(S, write),
-    ?line receive
-	      {tcp,S,Msg} ->
-		  io:format("~p\n", [Msg]),
-		  ?line N = list_to_integer(Msg) - 5;
-	      Other ->
-		  ?t:fail({unexpected,Other})
-	  end,
-     ok.
+    {ok,S} = gen_tcp:connect(localhost, P, []),
+    gen_tcp:send(S, Data),
+    gen_tcp:shutdown(S, write),
+    receive
+        {tcp,S,Msg} ->
+            io:format("~p\n", [Msg]),
+            N = list_to_integer(Msg) - 5;
+        Other ->
+            ?t:fail({unexpected,Other})
+    end,
+    ok.
 
  ones(0) -> [];
  ones(1) -> [1];
@@ -1065,10 +1055,10 @@ shutdown_pending(Config) when is_list(Config) ->
      end.
 
  a_server() ->
-     ?line {ok,L} = gen_tcp:listen(0, [{exit_on_close,false},{active,false}]),
-     ?line Pid = spawn_link(fun() -> a_server(L) end),
-     ?line ok = gen_tcp:controlling_process(L, Pid),
-     ?line {ok,Port} = inet:port(L),
+     {ok,L} = gen_tcp:listen(0, [{exit_on_close,false},{active,false}]),
+     Pid = spawn_link(fun() -> a_server(L) end),
+     ok = gen_tcp:controlling_process(L, Pid),
+     {ok,Port} = inet:port(L),
      Port.
 
  a_server(L) ->
@@ -1090,19 +1080,18 @@ shutdown_pending(Config) when is_list(Config) ->
 %% corrupt data. The testcase will be killed by the timetrap timeout
 %% if the bug is present.
 http_bad_packet(Config) when is_list(Config) ->
-    ?line {ok,L} = gen_tcp:listen(0,
-				  [{active, false},
-				   binary,
-				   {reuseaddr, true},
-				   {packet, http}]),
-    ?line {ok,Port} = inet:port(L),
-    ?line spawn_link(fun() -> erlang:yield(), http_bad_client(Port) end),
-    ?line case gen_tcp:accept(L) of
-	      {ok,S} ->
-		  http_worker(S);
-	      Err ->
-		  exit({accept,Err})
-	  end.
+    {ok,L} = gen_tcp:listen(0, [{active, false},
+                                binary,
+                                {reuseaddr, true},
+                                {packet, http}]),
+    {ok,Port} = inet:port(L),
+    spawn_link(fun() -> erlang:yield(), http_bad_client(Port) end),
+    case gen_tcp:accept(L) of
+        {ok,S} ->
+            http_worker(S);
+        Err ->
+            exit({accept,Err})
+    end.
 
 http_worker(S) ->
     case gen_tcp:recv(S, 0, 30000) of
@@ -1122,9 +1111,9 @@ http_bad_client(Port) ->
 %% Fill send queue and then start receiving.
 %%
 busy_send(Config) when is_list(Config) ->
-    ?line Master = self(),
-    ?line Msg = <<"the quick brown fox jumps over a lazy dog~n">>,
-    ?line Server =
+    Master = self(),
+    Msg = <<"the quick brown fox jumps over a lazy dog~n">>,
+    Server =
 	spawn_link(fun () ->
 			   {ok,L} = gen_tcp:listen
 				      (0, [{active,false},binary,
@@ -1134,45 +1123,42 @@ busy_send(Config) when is_list(Config) ->
 				     busy_send_client(Port, Master, Msg)},
 			   busy_send_srv(L, Master, Msg)
 		   end),
-    ?line io:format("~p Server~n", [Server]),
-    ?line receive 
-	      {Server,client,Client} ->
-		  ?line io:format("~p Client~n", [Client]),
-		  ?line busy_send_loop(Server, Client, 0)
-	  end.
+    io:format("~p Server~n", [Server]),
+    receive
+        {Server,client,Client} ->
+            io:format("~p Client~n", [Client]),
+            busy_send_loop(Server, Client, 0)
+    end.
 
 busy_send_loop(Server, Client, N) ->
     %% Master
     %%
-    ?line receive {Server,send} ->
+    receive {Server,send} ->
 		  busy_send_loop(Server, Client, N+1)
 	  after 2000 ->
 		  %% Send queue full, sender blocked 
 		  %% -> stop sender and release client
-		  ?line io:format("Send timeout, time to receive...~n", []),
-		  ?line Server ! {self(),close},
-		  ?line Client ! {self(),recv,N+1},
-		  ?line receive
-			    {Server,send} ->
-				?line busy_send_2(Server, Client, N+1)
-			after 10000 ->
-				%% If this happens, see busy_send_srv
-				?t:fail({timeout,{server,not_send,flush([])}})
-			end
-	  end.
+		  io:format("Send timeout, time to receive...~n", []),
+		  Server ! {self(),close},
+		  Client ! {self(),recv,N+1},
+                  receive
+                      {Server,send} ->
+                          busy_send_2(Server, Client, N+1)
+                  after 10000 ->
+                            %% If this happens, see busy_send_srv
+                            ?t:fail({timeout,{server,not_send,flush([])}})
+                  end
+    end.
 
 busy_send_2(Server, Client, _N) ->
     %% Master
     %%
-    ?line receive
-	      {Server,[closed]} ->
-		  ?line receive 
-			    {Client,[0,{error,closed}]} -> 
-				ok 
-			end
-	  after 10000 ->
-		  ?t:fail({timeout,{server,not_closed,flush([])}})
-	  end.
+    receive
+        {Server,[closed]} ->
+            receive {Client,[0,{error,closed}]} -> ok end
+    after 10000 ->
+              ?t:fail({timeout,{server,not_closed,flush([])}})
+    end.
 
 busy_send_srv(L, Master, Msg) ->
     %% Server
@@ -1228,7 +1214,7 @@ busy_send_client_loop(Socket, Master, Msg, N) ->
 
 busy_disconnect_passive(Config) when is_list(Config) ->
     MuchoData = list_to_binary(ones(64*1024)),
-    ?line [do_busy_disconnect_passive(MuchoData) || _ <- lists:seq(1, 10)],
+    [do_busy_disconnect_passive(MuchoData) || _ <- lists:seq(1, 10)],
     ok.
 
 do_busy_disconnect_passive(MuchoData) ->
@@ -1236,8 +1222,8 @@ do_busy_disconnect_passive(MuchoData) ->
     busy_disconnect_passive_send(S, MuchoData).
 
 busy_disconnect_passive_send(S, Data) ->
-    ?line case gen_tcp:send(S, Data) of
-	ok -> ?line busy_disconnect_passive_send(S, Data);
+    case gen_tcp:send(S, Data) of
+	ok -> busy_disconnect_passive_send(S, Data);
 	{error,closed} -> ok
     end.
 
@@ -1248,7 +1234,7 @@ busy_disconnect_passive_send(S, Data) ->
 %%%
 busy_disconnect_active(Config) when is_list(Config) ->
     MuchoData = list_to_binary(ones(64*1024)),
-    ?line [do_busy_disconnect_active(MuchoData) || _ <- lists:seq(1, 10)],
+    [do_busy_disconnect_active(MuchoData) || _ <- lists:seq(1, 10)],
     ok.
 
 do_busy_disconnect_active(MuchoData) ->
@@ -1256,21 +1242,21 @@ do_busy_disconnect_active(MuchoData) ->
     busy_disconnect_active_send(S, MuchoData).
 
 busy_disconnect_active_send(S, Data) ->
-    ?line case gen_tcp:send(S, Data) of
-	ok -> ?line busy_disconnect_active_send(S, Data);
+    case gen_tcp:send(S, Data) of
+	ok -> busy_disconnect_active_send(S, Data);
 	{error,closed} ->
 	    receive
 		{tcp_closed,S} -> ok;
-		_Other -> ?line ?t:fail()
+		_Other -> ?t:fail()
 	    end
     end.
 
 
 busy_disconnect_prepare_server(ConnectOpts) ->
-    ?line Sender = self(),
-    ?line Server = spawn_link(fun() -> busy_disconnect_server(Sender) end),
+    Sender = self(),
+    Server = spawn_link(fun() -> busy_disconnect_server(Sender) end),
     receive {port,Server,Port} -> ok end,
-    ?line {ok,S} = gen_tcp:connect(localhost, Port, ConnectOpts),
+    {ok,S} = gen_tcp:connect(localhost, Port, ConnectOpts),
     Server ! {Sender,sending},
     S.
 
@@ -1304,8 +1290,8 @@ busy_disconnect_server_wait_for_busy(Sender, S) ->
 %%% Fill send queue
 %%%
 fill_sendq(Config) when is_list(Config) ->
-    ?line Master = self(),
-    ?line Server = 
+    Master = self(),
+    Server =
 	spawn_link(fun () ->
 			   {ok,L} = gen_tcp:listen
 				      (0, [{active,false},binary,
@@ -1315,12 +1301,12 @@ fill_sendq(Config) when is_list(Config) ->
 				     fill_sendq_client(Port, Master)},
 			   fill_sendq_srv(L, Master)
 		   end),
-    ?line io:format("~p Server~n", [Server]),
-    ?line receive {Server,client,Client} ->
-		  ?line io:format("~p Client~n", [Client]),
-		  ?line receive {Server,reader,Reader} ->
-				?line io:format("~p Reader~n", [Reader]),
-				?line fill_sendq_loop(Server, Client, Reader)
+    io:format("~p Server~n", [Server]),
+    receive {Server,client,Client} ->
+		  io:format("~p Client~n", [Client]),
+		  receive {Server,reader,Reader} ->
+				io:format("~p Reader~n", [Reader]),
+				fill_sendq_loop(Server, Client, Reader)
 	    end
     end.
 
@@ -1331,21 +1317,21 @@ fill_sendq_loop(Server, Client, Reader) ->
 	    fill_sendq_loop(Server, Client, Reader)
     after 2000 ->
 	    %% Send queue full, sender blocked -> close client.
-	    ?line io:format("Send timeout, closing Client...~n", []),
-	    ?line Client ! {self(),close},
-	    ?line receive {Server,[{error,closed}]} ->
-			  ?line io:format("Got server closed.~n"),
-			  ?line receive {Reader,[{error,closed}]} ->
-					?line io:format
+	    io:format("Send timeout, closing Client...~n", []),
+	    Client ! {self(),close},
+	    receive {Server,[{error,closed}]} ->
+			  io:format("Got server closed.~n"),
+			  receive {Reader,[{error,closed}]} ->
+					io:format
 						("Got reader closed.~n"),
 					ok
 				after 3000 ->
 					?t:fail({timeout,{closed,reader}})
 				end;
 			  {Reader,[{error,closed}]} ->
-			  ?line io:format("Got reader closed.~n"),
-			  ?line receive {Server,[{error,closed}]} ->
-					?line io:format("Got server closed~n"),
+			  io:format("Got reader closed.~n"),
+			  receive {Server,[{error,closed}]} ->
+					io:format("Got server closed~n"),
 					ok
 				after 3000 ->
 					?t:fail({timeout,{closed,server}})
@@ -1416,39 +1402,39 @@ fill_sendq_client(Port, Master) ->
 %%% a closed socket.
 %%%
 partial_recv_and_close(Config) when is_list(Config) ->
-    ?line Msg = "the quick brown fox jumps over a lazy dog 0123456789\n",
-    ?line Len = length(Msg),
-    ?line {ok,L} = gen_tcp:listen(0, [{active,false}]),
-    ?line {ok,P} = inet:port(L),
-    ?line {ok,S} = gen_tcp:connect("localhost", P, [{active,false}]),
-    ?line {ok,A} = gen_tcp:accept(L),
-    ?line ok = gen_tcp:send(S, Msg),
-    ?line ok = gen_tcp:close(S),
-    ?line {error,closed} = gen_tcp:recv(A, Len+1),
+    Msg = "the quick brown fox jumps over a lazy dog 0123456789\n",
+    Len = length(Msg),
+    {ok,L} = gen_tcp:listen(0, [{active,false}]),
+    {ok,P} = inet:port(L),
+    {ok,S} = gen_tcp:connect("localhost", P, [{active,false}]),
+    {ok,A} = gen_tcp:accept(L),
+    ok = gen_tcp:send(S, Msg),
+    ok = gen_tcp:close(S),
+    {error,closed} = gen_tcp:recv(A, Len+1),
     ok.
 
 %%% Try to receive more than available number of bytes from 
 %%% a closed socket, this time waiting in the recv before closing.
 %%%
 partial_recv_and_close_2(Config) when is_list(Config) ->
-    ?line Msg = "the quick brown fox jumps over a lazy dog 0123456789\n",
-    ?line Len = length(Msg),
-    ?line {ok,L} = gen_tcp:listen(0, [{active,false}]),
-    ?line {ok,P} = inet:port(L),
-    ?line Server = self(),
-    ?line Client = 
+    Msg = "the quick brown fox jumps over a lazy dog 0123456789\n",
+    Len = length(Msg),
+    {ok,L} = gen_tcp:listen(0, [{active,false}]),
+    {ok,P} = inet:port(L),
+    Server = self(),
+    Client =
 	spawn_link(
 	  fun () ->
 		  receive after 2000 -> ok end,
 		  {ok,S} = gen_tcp:connect("localhost", P, [{active,false}]),
-		  ?line ok = gen_tcp:send(S, Msg),
+		  ok = gen_tcp:send(S, Msg),
 		  receive {Server,close} -> ok end,
 		  receive after 2000 -> ok end,
-		  ?line ok = gen_tcp:close(S)
+		  ok = gen_tcp:close(S)
 	  end),
-    ?line {ok,A} = gen_tcp:accept(L),
-    ?line Client ! {Server,close},
-    ?line {error,closed} = gen_tcp:recv(A, Len+1),
+    {ok,A} = gen_tcp:accept(L),
+    Client ! {Server,close},
+    {error,closed} = gen_tcp:recv(A, Len+1),
     ok.
 
 %%% Here we tests that gen_tcp:recv/2 will return {error,closed} following
@@ -1471,151 +1457,151 @@ do_partial_recv_and_close_3() ->
     receive
 	{port,Port} -> ok
     end,
-    ?line Much = ones(8*64*1024),
-    ?line {ok,S} = gen_tcp:connect(localhost, Port, [{active,false}]),
+    Much = ones(8*64*1024),
+    {ok,S} = gen_tcp:connect(localhost, Port, [{active,false}]),
 
     %% Send a lot of data (most of it will be queued). The receiver will read one byte
     %% and close the connection. The write operation will fail.
-    ?line gen_tcp:send(S, Much),
+    gen_tcp:send(S, Much),
 
     %% We should always get {error,closed} here.
-    ?line {error,closed} = gen_tcp:recv(S, 0).
+    {error,closed} = gen_tcp:recv(S, 0).
     
 
 test_prio_put_get() ->
     Tos = 3 bsl 5,
-    ?line {ok,L1} = gen_tcp:listen(0, [{active,false}]),
-    ?line ok = inet:setopts(L1,[{priority,3}]),
-    ?line ok = inet:setopts(L1,[{tos,Tos}]),
-    ?line {ok,[{priority,3},{tos,Tos}]} = inet:getopts(L1,[priority,tos]),
-    ?line ok = inet:setopts(L1,[{priority,3}]), % Dont destroy each other
-    ?line {ok,[{priority,3},{tos,Tos}]} = inet:getopts(L1,[priority,tos]),
-    ?line ok = inet:setopts(L1,[{reuseaddr,true}]), % Dont let others destroy
-    ?line {ok,[{priority,3},{tos,Tos}]} = inet:getopts(L1,[priority,tos]),
-    ?line gen_tcp:close(L1),
+    {ok,L1} = gen_tcp:listen(0, [{active,false}]),
+    ok = inet:setopts(L1,[{priority,3}]),
+    ok = inet:setopts(L1,[{tos,Tos}]),
+    {ok,[{priority,3},{tos,Tos}]} = inet:getopts(L1,[priority,tos]),
+    ok = inet:setopts(L1,[{priority,3}]), % Dont destroy each other
+    {ok,[{priority,3},{tos,Tos}]} = inet:getopts(L1,[priority,tos]),
+    ok = inet:setopts(L1,[{reuseaddr,true}]), % Dont let others destroy
+    {ok,[{priority,3},{tos,Tos}]} = inet:getopts(L1,[priority,tos]),
+    gen_tcp:close(L1),
     ok.
 test_prio_accept() ->
-    ?line {ok,Sock}=gen_tcp:listen(0,[binary,{packet,0},{active,false},
-					 {reuseaddr,true},{priority,4}]),
-    ?line {ok,Port} = inet:port(Sock),
-    ?line {ok,Sock2}=gen_tcp:connect("localhost",Port,[binary,{packet,0},
-						       {active,false},
-						       {reuseaddr,true},
-						       {priority,4}]),
-    ?line {ok,Sock3}=gen_tcp:accept(Sock),
-    ?line {ok,[{priority,4}]} = inet:getopts(Sock,[priority]),
-    ?line {ok,[{priority,4}]} = inet:getopts(Sock2,[priority]),
-    ?line {ok,[{priority,4}]} = inet:getopts(Sock3,[priority]),
-    ?line gen_tcp:close(Sock),
-    ?line gen_tcp:close(Sock2),
-    ?line gen_tcp:close(Sock3),
+    {ok,Sock}=gen_tcp:listen(0,[binary,{packet,0},{active,false},
+                                {reuseaddr,true},{priority,4}]),
+    {ok,Port} = inet:port(Sock),
+    {ok,Sock2}=gen_tcp:connect("localhost",Port,[binary,{packet,0},
+                                                 {active,false},
+                                                 {reuseaddr,true},
+                                                 {priority,4}]),
+    {ok,Sock3}=gen_tcp:accept(Sock),
+    {ok,[{priority,4}]} = inet:getopts(Sock,[priority]),
+    {ok,[{priority,4}]} = inet:getopts(Sock2,[priority]),
+    {ok,[{priority,4}]} = inet:getopts(Sock3,[priority]),
+    gen_tcp:close(Sock),
+    gen_tcp:close(Sock2),
+    gen_tcp:close(Sock3),
     ok.
 
 test_prio_accept2() ->
     Tos1 = 4 bsl 5,
     Tos2 = 3 bsl 5,
-    ?line {ok,Sock}=gen_tcp:listen(0,[binary,{packet,0},{active,false},
-					 {reuseaddr,true},{priority,4},
-					 {tos,Tos1}]),
-    ?line {ok,Port} = inet:port(Sock),
-    ?line {ok,Sock2}=gen_tcp:connect("localhost",Port,[binary,{packet,0},
-						       {active,false},
-						       {reuseaddr,true},
-						       {priority,4},
-						       {tos,Tos2}]),
-    ?line {ok,Sock3}=gen_tcp:accept(Sock),
-    ?line {ok,[{priority,4},{tos,Tos1}]} = inet:getopts(Sock,[priority,tos]),
-    ?line {ok,[{priority,4},{tos,Tos2}]} = inet:getopts(Sock2,[priority,tos]),
-    ?line {ok,[{priority,4},{tos,Tos1}]} = inet:getopts(Sock3,[priority,tos]),
-    ?line gen_tcp:close(Sock),
-    ?line gen_tcp:close(Sock2),
-    ?line gen_tcp:close(Sock3),
+    {ok,Sock}=gen_tcp:listen(0,[binary,{packet,0},{active,false},
+                                {reuseaddr,true},{priority,4},
+                                {tos,Tos1}]),
+    {ok,Port} = inet:port(Sock),
+    {ok,Sock2}=gen_tcp:connect("localhost",Port,[binary,{packet,0},
+                                                 {active,false},
+                                                 {reuseaddr,true},
+                                                 {priority,4},
+                                                 {tos,Tos2}]),
+    {ok,Sock3}=gen_tcp:accept(Sock),
+    {ok,[{priority,4},{tos,Tos1}]} = inet:getopts(Sock,[priority,tos]),
+    {ok,[{priority,4},{tos,Tos2}]} = inet:getopts(Sock2,[priority,tos]),
+    {ok,[{priority,4},{tos,Tos1}]} = inet:getopts(Sock3,[priority,tos]),
+    gen_tcp:close(Sock),
+    gen_tcp:close(Sock2),
+    gen_tcp:close(Sock3),
     ok.
 
 test_prio_accept3() ->
     Tos1 = 4 bsl 5,
     Tos2 = 3 bsl 5,
-    ?line {ok,Sock}=gen_tcp:listen(0,[binary,{packet,0},{active,false},
-				      {reuseaddr,true},
-				      {tos,Tos1}]),
-    ?line {ok,Port} = inet:port(Sock),
-    ?line {ok,Sock2}=gen_tcp:connect("localhost",Port,[binary,{packet,0},
-						       {active,false},
-						       {reuseaddr,true},
-						       {tos,Tos2}]),
-    ?line {ok,Sock3}=gen_tcp:accept(Sock),
-    ?line {ok,[{priority,0},{tos,Tos1}]} = inet:getopts(Sock,[priority,tos]),
-    ?line {ok,[{priority,0},{tos,Tos2}]} = inet:getopts(Sock2,[priority,tos]),
-    ?line {ok,[{priority,0},{tos,Tos1}]} = inet:getopts(Sock3,[priority,tos]),
-    ?line gen_tcp:close(Sock),
-    ?line gen_tcp:close(Sock2),
-    ?line gen_tcp:close(Sock3),
+    {ok,Sock}=gen_tcp:listen(0,[binary,{packet,0},{active,false},
+                                {reuseaddr,true},
+                                {tos,Tos1}]),
+    {ok,Port} = inet:port(Sock),
+    {ok,Sock2}=gen_tcp:connect("localhost",Port,[binary,{packet,0},
+                                                 {active,false},
+                                                 {reuseaddr,true},
+                                                 {tos,Tos2}]),
+    {ok,Sock3}=gen_tcp:accept(Sock),
+    {ok,[{priority,0},{tos,Tos1}]} = inet:getopts(Sock,[priority,tos]),
+    {ok,[{priority,0},{tos,Tos2}]} = inet:getopts(Sock2,[priority,tos]),
+    {ok,[{priority,0},{tos,Tos1}]} = inet:getopts(Sock3,[priority,tos]),
+    gen_tcp:close(Sock),
+    gen_tcp:close(Sock2),
+    gen_tcp:close(Sock3),
     ok.
     
 test_prio_accept_async() ->
     Tos1 = 4 bsl 5,
     Tos2 = 3 bsl 5,
     Ref = make_ref(),
-    ?line spawn(?MODULE,priority_server,[{self(),Ref}]),
-    ?line Port = receive 
-		     {Ref,P} -> P 
-		 after 5000 -> ?t:fail({error,"helper process timeout"}) 
-		 end,
-    ?line receive
-	  after 3000 -> ok
-	  end,
-    ?line {ok,Sock2}=gen_tcp:connect("localhost",Port,[binary,{packet,0},
-						       {active,false},
-						       {reuseaddr,true},
-						       {priority,4},
-						       {tos,Tos2}]),
-    ?line receive 
-	      {Ref,{ok,[{priority,4},{tos,Tos1}]}} -> 
-		  ok ;
-	      {Ref,Error} ->
-		   ?t:fail({missmatch,Error})
-	  after 5000 -> ?t:fail({error,"helper process timeout"}) 
-	  end,
-    ?line receive 
-	      {Ref,{ok,[{priority,4},{tos,Tos1}]}} -> 
-		  ok ;
-	      {Ref,Error2} ->
-		   ?t:fail({missmatch,Error2})
-	  after 5000 -> ?t:fail({error,"helper process timeout"}) 
-	  end,
-    
-    ?line {ok,[{priority,4},{tos,Tos2}]} = inet:getopts(Sock2,[priority,tos]),
-    ?line catch gen_tcp:close(Sock2),
+    spawn(?MODULE,priority_server,[{self(),Ref}]),
+    Port = receive
+               {Ref,P} -> P
+           after 5000 -> ?t:fail({error,"helper process timeout"})
+           end,
+    receive
+    after 3000 -> ok
+    end,
+    {ok,Sock2}=gen_tcp:connect("localhost",Port,[binary,{packet,0},
+                                                 {active,false},
+                                                 {reuseaddr,true},
+                                                 {priority,4},
+                                                 {tos,Tos2}]),
+    receive
+        {Ref,{ok,[{priority,4},{tos,Tos1}]}} ->
+            ok;
+        {Ref,Error} ->
+            ?t:fail({missmatch,Error})
+    after 5000 -> ?t:fail({error,"helper process timeout"})
+    end,
+    receive
+        {Ref,{ok,[{priority,4},{tos,Tos1}]}} ->
+            ok;
+        {Ref,Error2} ->
+            ?t:fail({missmatch,Error2})
+    after 5000 -> ?t:fail({error,"helper process timeout"})
+    end,
+
+    {ok,[{priority,4},{tos,Tos2}]} = inet:getopts(Sock2,[priority,tos]),
+    catch gen_tcp:close(Sock2),
     ok.
 
 priority_server({Parent,Ref}) ->
     Tos1 = 4 bsl 5,
-    ?line {ok,Sock}=gen_tcp:listen(0,[binary,{packet,0},{active,false},
-				      {reuseaddr,true},{priority,4},
-				      {tos,Tos1}]),
-    ?line {ok,Port} = inet:port(Sock),
+    {ok,Sock}=gen_tcp:listen(0,[binary,{packet,0},{active,false},
+                                {reuseaddr,true},{priority,4},
+                                {tos,Tos1}]),
+    {ok,Port} = inet:port(Sock),
     Parent ! {Ref,Port},
-    ?line {ok,Sock3}=gen_tcp:accept(Sock),
+    {ok,Sock3}=gen_tcp:accept(Sock),
     Parent ! {Ref, inet:getopts(Sock,[priority,tos])},
     Parent ! {Ref, inet:getopts(Sock3,[priority,tos])},
     ok.
 
 test_prio_fail() ->
-    ?line {ok,L} = gen_tcp:listen(0, [{active,false}]),
-    ?line {error,_} = inet:setopts(L,[{priority,1000}]),
+    {ok,L} = gen_tcp:listen(0, [{active,false}]),
+    {error,_} = inet:setopts(L,[{priority,1000}]),
 %   This error could only happen in linux kernels earlier than 2.6.24.4
 %   Privilege check is now disabled and IP_TOS can never fail (only silently
 %   be masked).
-%   ?line {error,_} = inet:setopts(L,[{tos,6 bsl 5}]),
-    ?line gen_tcp:close(L),
+%   {error,_} = inet:setopts(L,[{tos,6 bsl 5}]),
+    gen_tcp:close(L),
     ok.
 
 test_prio_udp() ->
     Tos = 3 bsl 5,
-    ?line {ok,S} = gen_udp:open(0,[{active,false},binary,{tos, Tos}, 
-				   {priority,3}]),
-    ?line {ok,[{priority,3},{tos,Tos}]} = inet:getopts(S,[priority,tos]),
-    ?line gen_udp:close(S),
+    {ok,S} = gen_udp:open(0,[{active,false},binary,{tos, Tos},
+                             {priority,3}]),
+    {ok,[{priority,3},{tos,Tos}]} = inet:getopts(S,[priority,tos]),
+    gen_udp:close(S),
     ok.
 
 so_priority(doc) ->
@@ -1623,9 +1609,9 @@ so_priority(doc) ->
 so_priority(suite) ->
     [];
 so_priority(Config) when is_list(Config) ->
-    ?line {ok,L} = gen_tcp:listen(0, [{active,false}]),
-    ?line ok = inet:setopts(L,[{priority,1}]),
-    ?line case inet:getopts(L,[priority]) of
+    {ok,L} = gen_tcp:listen(0, [{active,false}]),
+    ok = inet:setopts(L,[{priority,1}]),
+    case inet:getopts(L,[priority]) of
 	{ok,[{priority,1}]} ->
 	    gen_tcp:close(L),
 	    test_prio_put_get(),
@@ -1641,7 +1627,7 @@ so_priority(Config) when is_list(Config) ->
 		{unix,linux} ->
 		    case os:version() of
 			{X,Y,_} when (X > 2) or ((X =:= 2) and (Y >= 4)) ->
-			    ?line ?t:fail({error,
+			    ?t:fail({error,
 					   "so_priority should work on this "
 					   "OS, but does not"});
 			_ ->
@@ -1655,21 +1641,21 @@ so_priority(Config) when is_list(Config) ->
 %% Accept test utilities (suites are below)
 
 millis() ->
-    {A,B,C}=erlang:now(),
-    (A*1000000*1000)+(B*1000)+(C div 1000).
+    erlang:monotonic_time(milli_seconds).
 	
-collect_accepts(Tmo) ->
+collect_accepts(0,_) -> [];
+collect_accepts(N,Tmo) ->
     A = millis(),
     receive
 	{accepted,P,Msg} ->
-	    [{P,Msg}] ++ collect_accepts(Tmo-(millis() - A))
+	    [{P,Msg}] ++ collect_accepts(N-1,Tmo-(millis() - A))
     after Tmo ->
 	    []
     end.
    
--define(EXPECT_ACCEPTS(Pattern,Timeout),
+-define(EXPECT_ACCEPTS(Pattern,N,Timeout),
 	(fun() ->
-		 case collect_accepts(Timeout) of
+                 case collect_accepts(if N =:= infinity -> -1; true -> N end,Timeout) of
 		     Pattern ->
 			 ok;
 		     Other ->
@@ -1705,20 +1691,20 @@ primitive_accept(suite) ->
 primitive_accept(doc) ->
     ["Test singular accept"];
 primitive_accept(Config) when is_list(Config) ->
-    ?line {ok,LS}=gen_tcp:listen(0,[]),
-    ?line {ok,PortNo}=inet:port(LS),
-    ?line Parent = self(),
-    ?line F = fun() -> Parent ! {accepted,self(),gen_tcp:accept(LS)} end,
-    ?line P = spawn(F),
-    ?line gen_tcp:connect("localhost",PortNo,[]),
-    ?line receive
-	      {accepted,P,{ok,P0}} when is_port(P0) ->
-		  ok;
-	      {accepted,P,Other0} ->
-		  {error,Other0}
-	  after 500 ->
-		  {error,timeout}
-	  end.
+    {ok,LS}=gen_tcp:listen(0,[]),
+    {ok,PortNo}=inet:port(LS),
+    Parent = self(),
+    F = fun() -> Parent ! {accepted,self(),gen_tcp:accept(LS)} end,
+    P = spawn(F),
+    gen_tcp:connect("localhost",PortNo,[]),
+    receive
+        {accepted,P,{ok,P0}} when is_port(P0) ->
+            ok;
+        {accepted,P,Other0} ->
+            {error,Other0}
+    after 500 ->
+              {error,timeout}
+    end.
 
 	
 multi_accept_close_listen(suite) ->
@@ -1726,111 +1712,109 @@ multi_accept_close_listen(suite) ->
 multi_accept_close_listen(doc) ->
     ["Closing listen socket when multi-accepting"];
 multi_accept_close_listen(Config) when is_list(Config) ->
-    ?line {ok,LS}=gen_tcp:listen(0,[]),
-    ?line Parent = self(),
-    ?line F = fun() -> Parent ! {accepted,self(),gen_tcp:accept(LS)} end,
-    ?line spawn(F),
-    ?line spawn(F),
-    ?line spawn(F),
-    ?line spawn(F),
-    ?line gen_tcp:close(LS),
-    ?line ?EXPECT_ACCEPTS([{_,{error,closed}},{_,{error,closed}},
-			   {_,{error,closed}},{_,{error,closed}}], 500).
+    {ok,LS}=gen_tcp:listen(0,[]),
+    Parent = self(),
+    F = fun() -> Parent ! {accepted,self(),gen_tcp:accept(LS)} end,
+    spawn(F),
+    spawn(F),
+    spawn(F),
+    spawn(F),
+    gen_tcp:close(LS),
+    ?EXPECT_ACCEPTS([{_,{error,closed}},{_,{error,closed}},
+                     {_,{error,closed}},{_,{error,closed}}],4,500).
 	
 accept_timeout(suite) ->
     [];
 accept_timeout(doc) ->
     ["Single accept with timeout"];
 accept_timeout(Config) when is_list(Config) ->
-    ?line {ok,LS}=gen_tcp:listen(0,[]),
-    ?line Parent = self(),
-    ?line F = fun() -> Parent ! {accepted,self(),gen_tcp:accept(LS,1000)} end,
-    ?line P = spawn(F),
-    ?line ?EXPECT_ACCEPTS([{P,{error,timeout}}],2000).
+    {ok,LS}=gen_tcp:listen(0,[]),
+    Parent = self(),
+    F = fun() -> Parent ! {accepted,self(),gen_tcp:accept(LS,1000)} end,
+    P = spawn(F),
+    ?EXPECT_ACCEPTS([{P,{error,timeout}}],1,2000).
 
 accept_timeouts_in_order(suite) ->
     [];
 accept_timeouts_in_order(doc) ->
     ["Check that multi-accept timeouts happen in the correct order"];
 accept_timeouts_in_order(Config) when is_list(Config) ->
-    ?line {ok,LS}=gen_tcp:listen(0,[]),
-    ?line Parent = self(),
-    ?line P1 = spawn(mktmofun(1000,Parent,LS)),
-    ?line P2 = spawn(mktmofun(1200,Parent,LS)),
-    ?line P3 = spawn(mktmofun(1300,Parent,LS)),
-    ?line P4 = spawn(mktmofun(1400,Parent,LS)),
-    ?line ?EXPECT_ACCEPTS([{P1,{error,timeout}},{P2,{error,timeout}},
-			   {P3,{error,timeout}},{P4,{error,timeout}}], 2000).
+    {ok,LS}=gen_tcp:listen(0,[]),
+    Parent = self(),
+    P1 = spawn(mktmofun(1000,Parent,LS)),
+    P2 = spawn(mktmofun(1200,Parent,LS)),
+    P3 = spawn(mktmofun(1300,Parent,LS)),
+    P4 = spawn(mktmofun(1400,Parent,LS)),
+    ?EXPECT_ACCEPTS([{P1,{error,timeout}},{P2,{error,timeout}},
+                     {P3,{error,timeout}},{P4,{error,timeout}}],infinity,2000).
 
 accept_timeouts_in_order2(suite) ->
     [];
 accept_timeouts_in_order2(doc) ->
     ["Check that multi-accept timeouts happen in the correct order (more)"];
 accept_timeouts_in_order2(Config) when is_list(Config) ->
-    ?line {ok,LS}=gen_tcp:listen(0,[]),
-    ?line Parent = self(),
-    ?line P1 = spawn(mktmofun(1400,Parent,LS)),
-    ?line P2 = spawn(mktmofun(1300,Parent,LS)),
-    ?line P3 = spawn(mktmofun(1200,Parent,LS)),
-    ?line P4 = spawn(mktmofun(1000,Parent,LS)),
-    ?line ?EXPECT_ACCEPTS([{P4,{error,timeout}},{P3,{error,timeout}},
-			   {P2,{error,timeout}},{P1,{error,timeout}}], 2000).
+    {ok,LS}=gen_tcp:listen(0,[]),
+    Parent = self(),
+    P1 = spawn(mktmofun(1400,Parent,LS)),
+    P2 = spawn(mktmofun(1300,Parent,LS)),
+    P3 = spawn(mktmofun(1200,Parent,LS)),
+    P4 = spawn(mktmofun(1000,Parent,LS)),
+    ?EXPECT_ACCEPTS([{P4,{error,timeout}},{P3,{error,timeout}},
+                     {P2,{error,timeout}},{P1,{error,timeout}}],infinity,2000).
 
 accept_timeouts_in_order3(suite) ->
     [];
 accept_timeouts_in_order3(doc) ->
     ["Check that multi-accept timeouts happen in the correct order (even more)"];
 accept_timeouts_in_order3(Config) when is_list(Config) ->
-    ?line {ok,LS}=gen_tcp:listen(0,[]),
-    ?line Parent = self(),
-    ?line P1 = spawn(mktmofun(1200,Parent,LS)),
-    ?line P2 = spawn(mktmofun(1400,Parent,LS)),
-    ?line P3 = spawn(mktmofun(1300,Parent,LS)),
-    ?line P4 = spawn(mktmofun(1000,Parent,LS)),
-    ?line ?EXPECT_ACCEPTS([{P4,{error,timeout}},{P1,{error,timeout}},
-			   {P3,{error,timeout}},{P2,{error,timeout}}], 2000).
+    {ok,LS}=gen_tcp:listen(0,[]),
+    Parent = self(),
+    P1 = spawn(mktmofun(1200,Parent,LS)),
+    P2 = spawn(mktmofun(1400,Parent,LS)),
+    P3 = spawn(mktmofun(1300,Parent,LS)),
+    P4 = spawn(mktmofun(1000,Parent,LS)),
+    ?EXPECT_ACCEPTS([{P4,{error,timeout}},{P1,{error,timeout}},
+                     {P3,{error,timeout}},{P2,{error,timeout}}],infinity,2000).
 
 accept_timeouts_mixed(suite) ->
     [];
 accept_timeouts_mixed(doc) ->
     ["Check that multi-accept timeouts behave correctly when mixed with successful timeouts"];
 accept_timeouts_mixed(Config) when is_list(Config) ->
-    ?line {ok,LS}=gen_tcp:listen(0,[]),
-    ?line Parent = self(),
-    ?line {ok,PortNo}=inet:port(LS),
-    ?line P1 = spawn(mktmofun(1000,Parent,LS)),
-    ?line wait_until_accepting(P1,500),
-    ?line P2 = spawn(mktmofun(2000,Parent,LS)),
-    ?line wait_until_accepting(P2,500),
-    ?line P3 = spawn(mktmofun(3000,Parent,LS)),
-    ?line wait_until_accepting(P3,500),
-    ?line P4 = spawn(mktmofun(4000,Parent,LS)),
-    ?line wait_until_accepting(P4,500),
-    ?line ok = ?EXPECT_ACCEPTS([{P1,{error,timeout}}],1500),
-    ?line {ok,_}=gen_tcp:connect("localhost",PortNo,[]),
-    ?line ok = ?EXPECT_ACCEPTS([{P2,{ok,Port0}}] when is_port(Port0),100),
-    ?line ok = ?EXPECT_ACCEPTS([{P3,{error,timeout}}],2000),	
-    ?line gen_tcp:connect("localhost",PortNo,[]),
-    ?line ?EXPECT_ACCEPTS([{P4,{ok,Port1}}] when is_port(Port1),100).
+    {ok,LS}=gen_tcp:listen(0,[]),
+    Parent = self(),
+    {ok,PortNo}=inet:port(LS),
+    P1 = spawn(mktmofun(1000,Parent,LS)),
+    wait_until_accepting(P1,500),
+    P2 = spawn(mktmofun(2000,Parent,LS)),
+    wait_until_accepting(P2,500),
+    P3 = spawn(mktmofun(3000,Parent,LS)),
+    wait_until_accepting(P3,500),
+    P4 = spawn(mktmofun(4000,Parent,LS)),
+    wait_until_accepting(P4,500),
+    ok = ?EXPECT_ACCEPTS([{P1,{error,timeout}}],infinity,1500),
+    {ok,_}=gen_tcp:connect("localhost",PortNo,[]),
+    ok = ?EXPECT_ACCEPTS([{P2,{ok,Port0}}] when is_port(Port0),infinity,100),
+    ok = ?EXPECT_ACCEPTS([{P3,{error,timeout}}],infinity,2000),
+    gen_tcp:connect("localhost",PortNo,[]),
+    ?EXPECT_ACCEPTS([{P4,{ok,Port1}}] when is_port(Port1),infinity,100).
 
 killing_acceptor(suite) ->
     [];
 killing_acceptor(doc) ->
     ["Check that single acceptor behaves as expected when killed"];
 killing_acceptor(Config) when is_list(Config) ->    
-    ?line {ok,LS}=gen_tcp:listen(0,[]), 
-    ?line Pid = spawn(fun() -> erlang:display({accepted,self(),gen_tcp:accept(LS)}) end),
-    ?line receive after 100 ->
-			  ok
-		  end,
-    ?line {ok,L1} = prim_inet:getstatus(LS),
-    ?line true = lists:member(accepting, L1),
-    ?line exit(Pid,kill),
-    ?line receive after 100 ->
-			  ok
-		  end,
-    ?line {ok,L2} = prim_inet:getstatus(LS),
-    ?line false  = lists:member(accepting, L2),
+    {ok,LS}=gen_tcp:listen(0,[]),
+    Pid = spawn(fun() -> erlang:display({accepted,self(),gen_tcp:accept(LS)}) end),
+    receive after 100 -> ok
+    end,
+    {ok,L1} = prim_inet:getstatus(LS),
+    true = lists:member(accepting, L1),
+    exit(Pid,kill),
+    receive after 100 -> ok
+    end,
+    {ok,L2} = prim_inet:getstatus(LS),
+    false  = lists:member(accepting, L2),
     ok.
 
 killing_multi_acceptors(suite) ->
@@ -1838,26 +1822,24 @@ killing_multi_acceptors(suite) ->
 killing_multi_acceptors(doc) ->
     ["Check that multi acceptors behaves as expected when killed"];
 killing_multi_acceptors(Config) when is_list(Config) ->    
-    ?line {ok,LS}=gen_tcp:listen(0,[]), 
-    ?line Parent = self(),
-    ?line F = fun() -> Parent ! {accepted,self(),gen_tcp:accept(LS)} end,
-    ?line F2 = mktmofun(1000,Parent,LS),
-    ?line Pid = spawn(F),
-    ?line Pid2 = spawn(F2),
-    ?line receive after 100 ->
-		    ok
-	    end,
-    ?line {ok,L1} = prim_inet:getstatus(LS),
-    ?line true = lists:member(accepting, L1),
-    ?line exit(Pid,kill),
-    ?line receive after 100 ->
-		    ok
-	    end,
-    ?line {ok,L2} = prim_inet:getstatus(LS),
-    ?line true  = lists:member(accepting, L2),
-    ?line ok = ?EXPECT_ACCEPTS([{Pid2,{error,timeout}}],1000),
-    ?line {ok,L3} = prim_inet:getstatus(LS),
-    ?line false  = lists:member(accepting, L3),
+    {ok,LS}=gen_tcp:listen(0,[]),
+    Parent = self(),
+    F = fun() -> Parent ! {accepted,self(),gen_tcp:accept(LS)} end,
+    F2 = mktmofun(1000,Parent,LS),
+    Pid = spawn(F),
+    Pid2 = spawn(F2),
+    receive after 100 -> ok
+    end,
+    {ok,L1} = prim_inet:getstatus(LS),
+    true = lists:member(accepting, L1),
+    exit(Pid,kill),
+    receive after 100 -> ok
+    end,
+    {ok,L2} = prim_inet:getstatus(LS),
+    true  = lists:member(accepting, L2),
+    ok = ?EXPECT_ACCEPTS([{Pid2,{error,timeout}}],1,1000),
+    {ok,L3} = prim_inet:getstatus(LS),
+    false  = lists:member(accepting, L3),
     ok.
 
 killing_multi_acceptors2(suite) ->
@@ -1865,40 +1847,36 @@ killing_multi_acceptors2(suite) ->
 killing_multi_acceptors2(doc) ->
     ["Check that multi acceptors behaves as expected when killed (more)"];
 killing_multi_acceptors2(Config) when is_list(Config) ->
-    ?line {ok,LS}=gen_tcp:listen(0,[]), 
-    ?line Parent = self(),
-    ?line {ok,PortNo}=inet:port(LS),
-    ?line F = fun() -> Parent ! {accepted,self(),gen_tcp:accept(LS)} end,
-    ?line F2 = mktmofun(1000,Parent,LS),
-    ?line Pid = spawn(F),
-    ?line Pid2 = spawn(F),
-    ?line receive after 100 ->
-		    ok
-	    end,
-    ?line {ok,L1} = prim_inet:getstatus(LS),
-    ?line true = lists:member(accepting, L1),
-    ?line exit(Pid,kill),
-    ?line receive after 100 ->
-		    ok
-	    end,
-    ?line {ok,L2} = prim_inet:getstatus(LS),
-    ?line true  = lists:member(accepting, L2),
-    ?line exit(Pid2,kill),
-    ?line receive after 100 ->
-		    ok
-	    end,
-    ?line {ok,L3} = prim_inet:getstatus(LS),
-    ?line false  = lists:member(accepting, L3),
-    ?line Pid3 = spawn(F2),
-    ?line receive after 100 ->
-		    ok
-	    end,
-    ?line {ok,L4} = prim_inet:getstatus(LS),
-    ?line true  = lists:member(accepting, L4),
-    ?line gen_tcp:connect("localhost",PortNo,[]),
-    ?line ok = ?EXPECT_ACCEPTS([{Pid3,{ok,Port}}] when is_port(Port),100),
-    ?line {ok,L5} = prim_inet:getstatus(LS),
-    ?line false  = lists:member(accepting, L5),
+    {ok,LS}=gen_tcp:listen(0,[]),
+    Parent = self(),
+    {ok,PortNo}=inet:port(LS),
+    F = fun() -> Parent ! {accepted,self(),gen_tcp:accept(LS)} end,
+    F2 = mktmofun(1000,Parent,LS),
+    Pid = spawn(F),
+    Pid2 = spawn(F),
+    receive after 100 -> ok
+    end,
+    {ok,L1} = prim_inet:getstatus(LS),
+    true = lists:member(accepting, L1),
+    exit(Pid,kill),
+    receive after 100 -> ok
+    end,
+    {ok,L2} = prim_inet:getstatus(LS),
+    true  = lists:member(accepting, L2),
+    exit(Pid2,kill),
+    receive after 100 -> ok
+    end,
+    {ok,L3} = prim_inet:getstatus(LS),
+    false  = lists:member(accepting, L3),
+    Pid3 = spawn(F2),
+    receive after 100 -> ok
+    end,
+    {ok,L4} = prim_inet:getstatus(LS),
+    true  = lists:member(accepting, L4),
+    gen_tcp:connect("localhost",PortNo,[]),
+    ok = ?EXPECT_ACCEPTS([{Pid3,{ok,Port}}] when is_port(Port),1,100),
+    {ok,L5} = prim_inet:getstatus(LS),
+    false  = lists:member(accepting, L5),
     ok.
     
 several_accepts_in_one_go(suite) ->
@@ -1907,33 +1885,19 @@ several_accepts_in_one_go(doc) ->
     ["checks that multi-accept works when more than one accept can be "
      "done at once (wb test of inet_driver)"];
 several_accepts_in_one_go(Config) when is_list(Config) ->
-    ?line {ok,LS}=gen_tcp:listen(0,[]), 
-    ?line Parent = self(),
-    ?line {ok,PortNo}=inet:port(LS),
-    ?line F1 = fun() -> Parent ! {accepted,self(),gen_tcp:accept(LS)} end,
-    ?line F2 = fun() -> Parent ! {connected,self(),gen_tcp:connect("localhost",PortNo,[])} end,
-    ?line spawn(F1),
-    ?line spawn(F1),
-    ?line spawn(F1),
-    ?line spawn(F1),
-    ?line spawn(F1),
-    ?line spawn(F1),
-    ?line spawn(F1),
-    ?line spawn(F1),
-    ?line ok = ?EXPECT_ACCEPTS([],500),
-    ?line spawn(F2),
-    ?line spawn(F2),
-    ?line spawn(F2),
-    ?line spawn(F2),
-    ?line spawn(F2),
-    ?line spawn(F2),
-    ?line spawn(F2),
-    ?line spawn(F2),
-    ?line ok = ?EXPECT_ACCEPTS([{_,{ok,_}},{_,{ok,_}},{_,{ok,_}},{_,{ok,_}},{_,{ok,_}},{_,{ok,_}},{_,{ok,_}},{_,{ok,_}}],15000),
-    ?line ok = ?EXPECT_CONNECTS([{_,{ok,_}},{_,{ok,_}},{_,{ok,_}},{_,{ok,_}},{_,{ok,_}},{_,{ok,_}},{_,{ok,_}},{_,{ok,_}}],1000),
+    {ok,LS}=gen_tcp:listen(0,[]),
+    Parent = self(),
+    {ok,PortNo}=inet:port(LS),
+    F1 = fun() -> Parent ! {accepted,self(),gen_tcp:accept(LS)} end,
+    F2 = fun() -> Parent ! {connected,self(),gen_tcp:connect("localhost",PortNo,[])} end,
+    Ns = lists:seq(1,8),
+    _  = [spawn(F1) || _ <- Ns],
+    ok = ?EXPECT_ACCEPTS([],1,500), % wait for tmo
+    _  = [spawn(F2) || _ <- Ns],
+    ok = ?EXPECT_ACCEPTS([{_,{ok,_}},{_,{ok,_}},{_,{ok,_}},{_,{ok,_}},{_,{ok,_}},{_,{ok,_}},{_,{ok,_}},{_,{ok,_}}],8,15000),
+    ok = ?EXPECT_CONNECTS([{_,{ok,_}},{_,{ok,_}},{_,{ok,_}},{_,{ok,_}},{_,{ok,_}},{_,{ok,_}},{_,{ok,_}},{_,{ok,_}}],1000),
     ok.
 
-
 flush(Msgs) ->
     erlang:yield(),
     receive Msg -> flush([Msg|Msgs])
@@ -1968,13 +1932,13 @@ accept_system_limit(doc) ->
     ["Check that accept returns {error, system_limit} "
      "(and not {error, enfile}) when running out of ports"];
 accept_system_limit(Config) when is_list(Config) ->
-    ?line {ok, LS} = gen_tcp:listen(0, []),
-    ?line {ok, TcpPort} = inet:port(LS),
+    {ok, LS} = gen_tcp:listen(0, []),
+    {ok, TcpPort} = inet:port(LS),
     Me = self(),
-    ?line Connector = spawn_link(fun () -> connector(TcpPort, Me) end),
+    Connector = spawn_link(fun () -> connector(TcpPort, Me) end),
     receive {Connector, sync} -> Connector ! {self(), continue} end,
-    ?line ok = acceptor(LS, false, []),
-    ?line Connector ! stop,
+    ok = acceptor(LS, false, []),
+    Connector ! stop,
     ok.
 
 acceptor(LS, GotSL, A) ->
@@ -2021,49 +1985,49 @@ active_once_closed(doc) ->
     ["Check that active once and tcp_close messages behave as expected"];
 active_once_closed(Config) when is_list(Config) ->
     (fun() ->
-	     ?line {Loop,A} = setup_closed_ao(),
-	     ?line Loop({{error,closed},{error,econnaborted}}, 
+	     {Loop,A} = setup_closed_ao(),
+	     Loop({{error,closed},{error,econnaborted}},
 			fun() -> gen_tcp:send(A,"Hello") end),
-	     ?line ok = inet:setopts(A,[{active,once}]),
-	     ?line ok = receive {tcp_closed, A} -> ok after 1000 -> error end,
-	     ?line {error,einval} = inet:setopts(A,[{active,once}]),
-	     ?line ok = receive {tcp_closed, A} -> error after 1000 -> ok end
+	     ok = inet:setopts(A,[{active,once}]),
+	     ok = receive {tcp_closed, A} -> ok after 1000 -> error end,
+	     {error,einval} = inet:setopts(A,[{active,once}]),
+	     ok = receive {tcp_closed, A} -> error after 1000 -> ok end
      end)(),
     (fun() ->
-	     ?line {Loop,A} = setup_closed_ao(),
-	     ?line Loop({{error,closed},{error,econnaborted}}, 
+	     {Loop,A} = setup_closed_ao(),
+	     Loop({{error,closed},{error,econnaborted}},
 			fun() -> gen_tcp:send(A,"Hello") end),
-	     ?line ok = inet:setopts(A,[{active,true}]),
-	     ?line ok = receive {tcp_closed, A} -> ok after 1000 -> error end,
-	     ?line {error,einval} = inet:setopts(A,[{active,true}]),
-	     ?line ok = receive {tcp_closed, A} -> error after 1000 -> ok end
+	     ok = inet:setopts(A,[{active,true}]),
+	     ok = receive {tcp_closed, A} -> ok after 1000 -> error end,
+	     {error,einval} = inet:setopts(A,[{active,true}]),
+	     ok = receive {tcp_closed, A} -> error after 1000 -> ok end
      end)(),
      (fun() ->
-	     ?line {Loop,A} = setup_closed_ao(),
-	     ?line Loop({{error,closed},{error,econnaborted}}, 
+	     {Loop,A} = setup_closed_ao(),
+	     Loop({{error,closed},{error,econnaborted}},
 			fun() -> gen_tcp:send(A,"Hello") end),
-	     ?line ok = inet:setopts(A,[{active,true}]),
-	     ?line ok = receive {tcp_closed, A} -> ok after 1000 -> error end,
-	     ?line {error,einval} = inet:setopts(A,[{active,once}]),
-	     ?line ok = receive {tcp_closed, A} -> error after 1000 -> ok end
+	     ok = inet:setopts(A,[{active,true}]),
+	     ok = receive {tcp_closed, A} -> ok after 1000 -> error end,
+	     {error,einval} = inet:setopts(A,[{active,once}]),
+	     ok = receive {tcp_closed, A} -> error after 1000 -> ok end
      end)(),
     (fun() ->
-	     ?line {Loop,A} = setup_closed_ao(),
-	     ?line Loop({{error,closed},{error,econnaborted}}, 
+	     {Loop,A} = setup_closed_ao(),
+	     Loop({{error,closed},{error,econnaborted}},
 			fun() -> gen_tcp:send(A,"Hello") end),
-	     ?line ok = inet:setopts(A,[{active,once}]),
-	     ?line ok = receive {tcp_closed, A} -> ok after 1000 -> error end,
-	     ?line {error,einval} = inet:setopts(A,[{active,true}]),
-	     ?line ok = receive {tcp_closed, A} -> error after 1000 -> ok end
+	     ok = inet:setopts(A,[{active,once}]),
+	     ok = receive {tcp_closed, A} -> ok after 1000 -> error end,
+	     {error,einval} = inet:setopts(A,[{active,true}]),
+	     ok = receive {tcp_closed, A} -> error after 1000 -> ok end
      end)(),
     (fun() ->
-	     ?line {Loop,A} = setup_closed_ao(),
-	     ?line Loop({{error,closed},{error,econnaborted}}, 
+	     {Loop,A} = setup_closed_ao(),
+	     Loop({{error,closed},{error,econnaborted}},
 			fun() -> gen_tcp:send(A,"Hello") end),
-	     ?line ok = inet:setopts(A,[{active,false}]),
-	     ?line ok = receive {tcp_closed, A} -> error after 1000 -> ok end,
-	     ?line ok = inet:setopts(A,[{active,once}]),
-	     ?line ok = receive {tcp_closed, A} -> ok after 1000 -> error end
+	     ok = inet:setopts(A,[{active,false}]),
+	     ok = receive {tcp_closed, A} -> error after 1000 -> ok end,
+	     ok = inet:setopts(A,[{active,once}]),
+	     ok = receive {tcp_closed, A} -> ok after 1000 -> error end
      end)().
    
 send_timeout(suite) ->
@@ -2072,10 +2036,10 @@ send_timeout(doc) ->
     ["Test the send_timeout socket option"];
 send_timeout(Config) when is_list(Config) ->
     %% Basic
-    BasicFun = 
+    BasicFun =
 	fun(AutoClose) ->
-	     ?line {Loop,A,RNode} = setup_timeout_sink(1000, AutoClose),
-	     ?line {error,timeout} = 
+	     {Loop,A,RNode} = setup_timeout_sink(1000, AutoClose),
+	     {error,timeout} =
 		 Loop(fun() ->
 			      Res = gen_tcp:send(A,<<1:10000>>),
 			      %%erlang:display(Res),
@@ -2083,64 +2047,63 @@ send_timeout(Config) when is_list(Config) ->
 		      end),
 	     %% Check that the socket is not busy/closed...
 	     Error = after_send_timeout(AutoClose),
-	     ?line {error,Error} = gen_tcp:send(A,<<"Hej">>),
-	     ?line test_server:stop_node(RNode)
+	     {error,Error} = gen_tcp:send(A,<<"Hej">>),
+	     test_server:stop_node(RNode)
 	end,
     BasicFun(false),
     BasicFun(true),
     %% Check timeout length
-   ?line  Self = self(),
-   ?line  Pid = 
-	spawn(fun() ->
-		      {Loop,A,RNode} = setup_timeout_sink(1000, true),
-		      {error,timeout} = 
-			  Loop(fun() ->
-				       Res = gen_tcp:send(A,<<1:10000>>),
-				       %%erlang:display(Res),
-				       Self ! Res,
-				       Res
-			       end),
-		      test_server:stop_node(RNode)
-	      end),		  
-    ?line Diff = get_max_diff(),
-    ?line io:format("Max time for send: ~p~n",[Diff]),
-    ?line true = (Diff > 500) and (Diff < 1500),
+    Self = self(),
+    Pid = spawn(fun() ->
+                        {Loop,A,RNode} = setup_timeout_sink(1000, true),
+                        {error,timeout} = Loop(fun() ->
+                                     Res = gen_tcp:send(A,<<1:10000>>),
+                                     %%erlang:display(Res),
+                                     Self ! Res,
+                                     Res
+                             end),
+                        test_server:stop_node(RNode)
+	      end),
+    Diff = get_max_diff(),
+    io:format("Max time for send: ~p~n",[Diff]),
+    true = (Diff > 500) and (Diff < 1500),
     %% Let test_server slave die...
-    ?line Mon = erlang:monitor(process, Pid),
-    ?line receive {'DOWN',Mon,process,Pid,_} -> ok end,
+    Mon = erlang:monitor(process, Pid),
+    receive {'DOWN',Mon,process,Pid,_} -> ok end,
     %% Check that parallell writers do not hang forever
-    ParaFun = 
+    ParaFun =
 	fun(AutoClose) ->
-		?line {Loop,A,RNode} = setup_timeout_sink(1000, AutoClose),
+		{Loop,A,RNode} = setup_timeout_sink(1000, AutoClose),
 		SenderFun = fun() ->
-				    {error,Error} = 
+				    {error,Error} =
 					Loop(fun() ->
 						     gen_tcp:send(A, <<1:10000>>)
 					     end),
 				    Self ! {error,Error}
 			    end,
-		?line spawn_link(SenderFun),
-		?line spawn_link(SenderFun),
-		?line receive 
-			  {error,timeout} -> ok
-		      after 10000 ->
-			      ?line exit(timeout)
-		      end,
+		spawn_link(SenderFun),
+		spawn_link(SenderFun),
+                receive
+                    {error,timeout} -> ok
+                after 10000 ->
+                          exit(timeout)
+                end,
 		NextErr = after_send_timeout(AutoClose),
-		?line receive
-			  {error,NextErr} -> ok
-		      after 10000 ->
-			      ?line exit(timeout)
-		      end,
-		?line {error,NextErr} = gen_tcp:send(A,<<"Hej">>),
-		?line test_server:stop_node(RNode)
+                receive
+                    {error,NextErr} -> ok
+                after 10000 ->
+                          exit(timeout)
+                end,
+		{error,NextErr} = gen_tcp:send(A,<<"Hej">>),
+		test_server:stop_node(RNode)
 	end,
     ParaFun(false),
     ParaFun(true),
     ok.
+
 mad_sender(S) ->
-    {_, _, USec} = now(),
-    case gen_tcp:send(S, integer_to_list(USec)) of
+    U = rand:uniform(1000000),
+    case gen_tcp:send(S, integer_to_list(U)) of
         ok ->
             mad_sender(S);
         Err ->
@@ -2166,25 +2129,25 @@ send_timeout_active(Config) when is_list(Config) ->
     %% Basic
     BasicFun = 
 	fun(AutoClose) ->
-		?line {Loop,A,RNode,C} = setup_active_timeout_sink(1, AutoClose),
+		{Loop,A,RNode,C} = setup_active_timeout_sink(1, AutoClose),
 		inet:setopts(A, [{active, once}]),
-		?line Mad = spawn_link(RNode,fun() -> mad_sender(C) end),
-		?line {error,timeout} = 
-		    Loop(fun() ->
-				 receive
-				     {tcp, _Sock, _Data} ->
-					 inet:setopts(A, [{active, once}]),
-					 Res = gen_tcp:send(A,lists:duplicate(1000, $a)),
-					 %erlang:display(Res),
-					 Res;
-				     Err ->
-					 io:format("sock closed: ~p~n", [Err]),
-					 Err
-				 end
-			 end),
-		unlink(Mad),
+		Mad = spawn_link(RNode,fun() -> mad_sender(C) end),
+		{error,timeout} =
+                Loop(fun() ->
+                             receive
+                                 {tcp, _Sock, _Data} ->
+                                     inet:setopts(A, [{active, once}]),
+                                     Res = gen_tcp:send(A,lists:duplicate(1000, $a)),
+                                     %erlang:display(Res),
+                                     Res;
+                                 Err ->
+                                     io:format("sock closed: ~p~n", [Err]),
+                                     Err
+                             end
+                     end),
+                unlink(Mad),
 		exit(Mad,kill),
-		?line test_server:stop_node(RNode)
+		test_server:stop_node(RNode)
 	end,
     BasicFun(false),
     flush(),
@@ -2208,10 +2171,10 @@ get_max_diff() ->
     end.
 
 get_max_diff(Max) ->
-    T1 = millistamp(),
+    T1 = millis(),
     receive
 	ok ->
-	    Diff = millistamp() - T1,
+	    Diff = millis() - T1,
 	    if
 		Diff > Max ->
 		    get_max_diff(Diff);
@@ -2219,7 +2182,7 @@ get_max_diff(Max) ->
 		    get_max_diff(Max)
 	    end;
 	{error,timeout} ->
-	    Diff = millistamp() - T1,
+	    Diff = millis() - T1,
 	    if
 		Diff > Max ->
 		    Diff;
@@ -2227,29 +2190,29 @@ get_max_diff(Max) ->
 		    Max
 	    end
     after 10000 ->
-	    exit(timeout)
+              exit(timeout)
     end.
 	    
 setup_closed_ao() ->
     Dir = filename:dirname(code:which(?MODULE)),
     {ok,R} = test_server:start_node(test_default_options_slave,slave,
-				       [{args,"-pa " ++ Dir}]),    
+                                    [{args,"-pa " ++ Dir}]),
     Host = list_to_atom(lists:nth(2,string:tokens(atom_to_list(node()),"@"))),
     {ok, L} = gen_tcp:listen(0, [{active,false},{packet,2}]),
-    Fun = fun(F) -> 
-		  receive 
-		      {From,X} when is_function(X) -> 
-			  From ! {self(),X()}, F(F); 
-		      die -> ok 
-		  end 
-	  end, 
+    Fun = fun(F) ->
+                  receive
+                      {From,X} when is_function(X) ->
+                          From ! {self(),X()}, F(F);
+                      die -> ok
+                  end
+          end,
     Pid =  rpc:call(R,erlang,spawn,[fun() -> Fun(Fun) end]),
     {ok, Port} = inet:port(L),
-    Remote = fun(Fu) -> 
-		     Pid ! {self(), Fu}, 
-		     receive {Pid,X} -> X 
-		     end 
-	     end,
+    Remote = fun(Fu) ->
+                     Pid ! {self(), Fu},
+                     receive {Pid,X} -> X
+                     end
+             end,
     {ok, C} = Remote(fun() -> 
 			     gen_tcp:connect(Host,Port,
 					     [{active,false},{packet,2}]) 
@@ -2257,113 +2220,109 @@ setup_closed_ao() ->
     {ok,A} = gen_tcp:accept(L),
     gen_tcp:send(A,"Hello"),
     {ok, "Hello"} = Remote(fun() -> gen_tcp:recv(C,0) end),
-    ok =  Remote(fun() -> gen_tcp:close(C) end), 
-    Loop2 = fun(_,_,_,0) -> 
+    ok =  Remote(fun() -> gen_tcp:close(C) end),
+    Loop2 = fun(_,_,_,0) ->
 		    {failure, timeout}; 
-	       (L2,{MA,MB},F2,N) -> 
-		    case F2() of 
-			MA -> MA; 
-			MB -> MB; 
-			Other -> io:format("~p~n",[Other]), 
-				 receive after 1000 -> ok end, 
-				 L2(L2,{MA,MB},F2,N-1) 
-		    end 
+	       (L2,{MA,MB},F2,N) ->
+		    case F2() of
+			MA -> MA;
+			MB -> MB;
+			Other -> io:format("~p~n",[Other]),
+				 receive after 1000 -> ok end,
+				 L2(L2,{MA,MB},F2,N-1)
+		    end
 	    end,
     Loop = fun(Match2,F3) ->  Loop2(Loop2,Match2,F3,10) end,
     test_server:stop_node(R),
     {Loop,A}.
     
 setup_timeout_sink(Timeout, AutoClose) ->
-    ?line Dir = filename:dirname(code:which(?MODULE)),
-    ?line {ok,R} = test_server:start_node(test_default_options_slave,slave,
-				       [{args,"-pa " ++ Dir}]),    
-    ?line Host = list_to_atom(lists:nth(2,string:tokens(atom_to_list(node()),"@"))),
-    ?line {ok, L} = gen_tcp:listen(0, [{active,false},{packet,2},
+    Dir = filename:dirname(code:which(?MODULE)),
+    {ok,R} = test_server:start_node(test_default_options_slave,slave,
+                                    [{args,"-pa " ++ Dir}]),
+    Host = list_to_atom(lists:nth(2,string:tokens(atom_to_list(node()),"@"))),
+    {ok, L} = gen_tcp:listen(0, [{active,false},{packet,2},
 				 {send_timeout,Timeout},
 				 {send_timeout_close,AutoClose}]),
-    ?line Fun = fun(F) -> 
-		  receive 
-		      {From,X} when is_function(X) -> 
-			  From ! {self(),X()}, F(F); 
-		      die -> ok 
-		  end 
-	  end, 
-    ?line Pid =  rpc:call(R,erlang,spawn,[fun() -> Fun(Fun) end]),
-    ?line {ok, Port} = inet:port(L),
-    ?line Remote = fun(Fu) -> 
-		     Pid ! {self(), Fu}, 
-		     receive {Pid,X} -> X 
-		     end 
+    Fun = fun(F) ->
+		  receive
+		      {From,X} when is_function(X) ->
+			  From ! {self(),X()}, F(F);
+		      die -> ok
+		  end
+	  end,
+    Pid =  rpc:call(R,erlang,spawn,[fun() -> Fun(Fun) end]),
+    {ok, Port} = inet:port(L),
+    Remote = fun(Fu) ->
+		     Pid ! {self(), Fu},
+		     receive {Pid,X} -> X
+		     end
 	     end,
-    ?line {ok, C} = Remote(fun() -> 
+    {ok, C} = Remote(fun() ->
 			     gen_tcp:connect(Host,Port,
-					     [{active,false},{packet,2}]) 
+					     [{active,false},{packet,2}])
 		     end),
-    ?line {ok,A} = gen_tcp:accept(L),
-    ?line gen_tcp:send(A,"Hello"),
-    ?line {ok, "Hello"} = Remote(fun() -> gen_tcp:recv(C,0) end),
-    ?line Loop2 = fun(_,_,0) -> 
-		    {failure, timeout}; 
-	       (L2,F2,N) -> 
+    {ok,A} = gen_tcp:accept(L),
+    gen_tcp:send(A,"Hello"),
+    {ok, "Hello"} = Remote(fun() -> gen_tcp:recv(C,0) end),
+    Loop2 = fun(_,_,0) ->
+		    {failure, timeout};
+	       (L2,F2,N) ->
 		    Ret = F2(),
 		    io:format("~p~n",[Ret]),
 		    case Ret of
-			ok -> receive after 1 -> ok end, 
+			ok -> receive after 1 -> ok end,
 			      L2(L2,F2,N-1);
 			Other -> Other
-		    end 
+		    end
 	    end,
-    ?line Loop = fun(F3) ->  Loop2(Loop2,F3,1000) end,
+    Loop = fun(F3) ->  Loop2(Loop2,F3,1000) end,
     {Loop,A,R}.
 
 setup_active_timeout_sink(Timeout, AutoClose) ->
-    ?line Dir = filename:dirname(code:which(?MODULE)),
-    ?line {ok,R} = test_server:start_node(test_default_options_slave,slave,
-				       [{args,"-pa " ++ Dir}]),    
-    ?line Host = list_to_atom(lists:nth(2,string:tokens(atom_to_list(node()),"@"))),
-    ?line {ok, L} = gen_tcp:listen(0, [binary,{active,false},{packet,0},{nodelay, true},{keepalive, true},
+    Dir = filename:dirname(code:which(?MODULE)),
+    {ok,R} = test_server:start_node(test_default_options_slave,slave,
+                                    [{args,"-pa " ++ Dir}]),
+    Host = list_to_atom(lists:nth(2,string:tokens(atom_to_list(node()),"@"))),
+    {ok, L} = gen_tcp:listen(0, [binary,{active,false},{packet,0},{nodelay, true},{keepalive, true},
 				 {send_timeout,Timeout},
 				 {send_timeout_close,AutoClose}]),
-    ?line Fun = fun(F) -> 
-		  receive 
-		      {From,X} when is_function(X) -> 
-			  From ! {self(),X()}, F(F); 
-		      die -> ok 
-		  end 
-	  end, 
-    ?line Pid =  rpc:call(R,erlang,spawn,[fun() -> Fun(Fun) end]),
-    ?line {ok, Port} = inet:port(L),
-    ?line Remote = fun(Fu) -> 
-		     Pid ! {self(), Fu}, 
-		     receive {Pid,X} -> X 
-		     end 
+    Fun = fun(F) ->
+		  receive
+		      {From,X} when is_function(X) ->
+			  From ! {self(),X()}, F(F);
+		      die -> ok
+		  end
+	  end,
+    Pid =  rpc:call(R,erlang,spawn,[fun() -> Fun(Fun) end]),
+    {ok, Port} = inet:port(L),
+    Remote = fun(Fu) ->
+		     Pid ! {self(), Fu},
+		     receive {Pid,X} -> X
+		     end
 	     end,
-    ?line {ok, C} = Remote(fun() -> 
+    {ok, C} = Remote(fun() ->
 			     gen_tcp:connect(Host,Port,
-					     [{active,false}]) 
+					     [{active,false}])
 		     end),
-    ?line {ok,A} = gen_tcp:accept(L),
-    ?line gen_tcp:send(A,"Hello"),
-    ?line {ok, "H"++_} = Remote(fun() -> gen_tcp:recv(C,0) end),
-    ?line Loop2 = fun(_,_,0) -> 
-		    {failure, timeout}; 
-	       (L2,F2,N) -> 
+    {ok,A} = gen_tcp:accept(L),
+    gen_tcp:send(A,"Hello"),
+    {ok, "H"++_} = Remote(fun() -> gen_tcp:recv(C,0) end),
+    Loop2 = fun(_,_,0) ->
+		    {failure, timeout};
+	       (L2,F2,N) ->
 		    Ret = F2(),
 		    io:format("~p~n",[Ret]),
 		    case Ret of
-			ok -> receive after 1 -> ok end, 
+			ok -> receive after 1 -> ok end,
 			      L2(L2,F2,N-1);
 			Other -> Other
-		    end 
+		    end
 	    end,
-    ?line Loop = fun(F3) ->  Loop2(Loop2,F3,1000) end,
+    Loop = fun(F3) ->  Loop2(Loop2,F3,1000) end,
     {Loop,A,R,C}.
 
      
-millistamp() ->
-    {Mega, Secs, Micros} = erlang:now(),
-    (Micros div 1000) + Secs * 1000 + Mega * 1000000000.
-
 has_superfluous_schedulers() ->
     case {erlang:system_info(schedulers),
 	  erlang:system_info(logical_processors)} of
@@ -2378,22 +2337,22 @@ otp_7731(doc) ->
     "Leaking message from inet_drv {inet_reply,P,ok} "
     "when a socket sending resumes working after a send_timeout";
 otp_7731(Config) when is_list(Config) ->
-    ?line ServerPid = spawn_link(?MODULE, otp_7731_server, [self()]),
-    ?line receive {ServerPid, ready, PortNum} -> ok end,
+    ServerPid = spawn_link(?MODULE, otp_7731_server, [self()]),
+    receive {ServerPid, ready, PortNum} -> ok end,
 
-    ?line {ok, Socket} = gen_tcp:connect("localhost", PortNum, 
-					 [binary, {active, false}, {packet, raw},
-					  {send_timeout, 1000}]),
+    {ok, Socket} = gen_tcp:connect("localhost", PortNum,
+                                   [binary, {active, false}, {packet, raw},
+                                    {send_timeout, 1000}]),
     otp_7731_send(Socket),
     io:format("Sending complete...\n",[]),
     ServerPid ! {self(), recv},
-    receive {ServerPid, ok} -> ok end,	    
-    
+    receive {ServerPid, ok} -> ok end,
+
     io:format("Client waiting for leaking messages...\n",[]),
 
     %% Now make sure inet_drv does not leak any internal messages.
     receive Msg ->
-	    ?line test_server:fail({unexpected, Msg})
+	    test_server:fail({unexpected, Msg})
     after 1000 ->
 	    ok
     end,
@@ -2403,15 +2362,15 @@ otp_7731(Config) when is_list(Config) ->
 otp_7731_send(Socket) ->
     Bin = <<1:10000>>,
     io:format("Client sending ~p bytes...\n",[size(Bin)]),
-    ?line case gen_tcp:send(Socket, Bin) of
-	      ok -> otp_7731_send(Socket);
-	      {error,timeout} -> ok
-	  end.
+    case gen_tcp:send(Socket, Bin) of
+        ok -> otp_7731_send(Socket);
+        {error,timeout} -> ok
+    end.
 
 otp_7731_server(ClientPid) ->
-    ?line {ok, LSocket} = gen_tcp:listen(0, [binary, {packet, raw}, 
-					     {active, false}]),
-    ?line {ok, {_, PortNum}} = inet:sockname(LSocket),
+    {ok, LSocket} = gen_tcp:listen(0, [binary, {packet, raw},
+                                       {active, false}]),
+    {ok, {_, PortNum}} = inet:sockname(LSocket),
     io:format("Listening on ~w with port number ~p\n", [LSocket, PortNum]),
     ClientPid ! {self(), ready, PortNum},
 
@@ -2433,7 +2392,7 @@ otp_7731_server(ClientPid) ->
 
 
 otp_7731_recv(Socket) ->
-    ?line case gen_tcp:recv(Socket, 0, 1000) of
+    case gen_tcp:recv(Socket, 0, 1000) of
 	      {ok, Bin} -> 
 		  io:format("Server received ~p bytes\n",[size(Bin)]),
 		  otp_7731_recv(Socket);
@@ -2452,21 +2411,21 @@ zombie_sockets(Config) when is_list(Config) ->
     register(zombie_collector,self()),
     Calls = 10,
     Server = spawn_link(?MODULE, zombie_server,[self(), Calls]),
-    ?line {Server, ready, PortNum} = receive Msg -> Msg  end,
+    {Server, ready, PortNum} = receive Msg -> Msg  end,
     io:format("Ports before = ~p\n",[lists:sort(erlang:ports())]),
     zombie_client_loop(Calls, PortNum),
     Ports = lists:sort(zombie_collector(Calls,[])),
     Server ! terminate,
     io:format("Collected ports = ~p\n",[Ports]),
-    ?line [] = zombies_alive(Ports, 10),
+    [] = zombies_alive(Ports, 10),
     timer:sleep(1000),
     ok.
 
 zombie_client_loop(0, _) -> ok;
 zombie_client_loop(N, PortNum) when is_integer(PortNum) ->
-    ?line {ok, Socket} = gen_tcp:connect("localhost", PortNum, 
-					 [binary, {active, false}, {packet, raw}]),
-    ?line gen_tcp:close(Socket), % to make server recv fail
+    {ok, Socket} = gen_tcp:connect("localhost", PortNum,
+                                   [binary, {active, false}, {packet, raw}]),
+    gen_tcp:close(Socket), % to make server recv fail
     zombie_client_loop(N-1, PortNum).
 
 
@@ -2495,19 +2454,19 @@ zombies_alive(Ports, WaitSec) ->
     end.
 
 zombie_server(Pid, Calls) ->
-    ?line {ok, LSocket} = gen_tcp:listen(0, [binary, {packet, raw}, 
-					     {active, false}, {backlog, Calls}]),
-    ?line {ok, {_, PortNum}} = inet:sockname(LSocket),
+    {ok, LSocket} = gen_tcp:listen(0, [binary, {packet, raw},
+                                       {active, false}, {backlog, Calls}]),
+    {ok, {_, PortNum}} = inet:sockname(LSocket),
     io:format("Listening on ~w with port number ~p\n", [LSocket, PortNum]),
     BigBin = list_to_binary(lists:duplicate(100*1024, 77)),
     Pid ! {self(), ready, PortNum},
     zombie_accept_loop(LSocket, BigBin, Calls),
-    ?line terminate = receive Msg -> Msg end.	    
+    terminate = receive Msg -> Msg end.
 
 zombie_accept_loop(_, _, 0) ->
     ok;
 zombie_accept_loop(Socket, BigBin, Calls) ->
-    ?line case gen_tcp:accept(Socket) of
+    case gen_tcp:accept(Socket) of
 	{ok, NewSocket} ->
 	    spawn_link(fun() -> zombie_serve_client(NewSocket, BigBin) end),
 	    zombie_accept_loop(Socket, BigBin, Calls-1);
@@ -2517,29 +2476,27 @@ zombie_accept_loop(Socket, BigBin, Calls) ->
 
 zombie_serve_client(Socket, Bin) ->
     %%io:format("Got connection on ~p\n",[Socket]),
-    ?line gen_tcp:send(Socket, Bin),
+    gen_tcp:send(Socket, Bin),
     %%io:format("Sent data, waiting for reply on ~p\n",[Socket]),
-    ?line case gen_tcp:recv(Socket, 4) of
+    case gen_tcp:recv(Socket, 4) of
 	      {error,closed} -> ok;
 	      {error,econnaborted} -> ok % may be returned on Windows
 	  end,
     %%io:format("Closing ~p\n",[Socket]),
-    ?line gen_tcp:close(Socket),
+    gen_tcp:close(Socket),
     zombie_collector ! {closed, Socket}.
 
-
-
 otp_7816(suite) -> [];    
 otp_7816(doc) -> 
     "Hanging send on windows when sending iolist with more than 16 binaries.";
 otp_7816(Config) when is_list(Config) ->
     Client = self(),
-    ?line Server = spawn_link(fun()-> otp_7816_server(Client) end),
-    ?line receive {Server, ready, PortNum} -> ok end,
+    Server = spawn_link(fun()-> otp_7816_server(Client) end),
+    receive {Server, ready, PortNum} -> ok end,
 
-    ?line {ok, Socket} = gen_tcp:connect("localhost", PortNum, 
-					 [binary, {active, false}, {packet, 4},
-					  {send_timeout, 10}]),
+    {ok, Socket} = gen_tcp:connect("localhost", PortNum,
+                                   [binary, {active, false}, {packet, 4},
+                                    {send_timeout, 10}]),
     %% We use the undocumented feature that sending can be resumed after
     %% a send_timeout without any data loss if the peer starts to receive data.
     %% Unless of course the 7816-bug is in affect, in which case the write event
@@ -2549,9 +2506,9 @@ otp_7816(Config) when is_list(Config) ->
 
     io:format("Sending complete...\n",[]),
 
-    ?line ok = gen_tcp:close(Socket),
+    ok = gen_tcp:close(Socket),
     Server ! {self(), closed},
-    ?line {Server, closed} = receive M -> M end.
+    {Server, closed} = receive M -> M end.
 
     
 otp_7816_send(Socket, BinNr, BinSize, Server) ->
@@ -2559,7 +2516,7 @@ otp_7816_send(Socket, BinNr, BinSize, Server) ->
     SentBytes = otp_7816_send_data(Socket, Data, 0) * BinNr * BinSize,
     io:format("Client sent ~p bytes...\n",[SentBytes]),
     Server ! {self(),recv,SentBytes},
-    ?line {Server, ok} = receive M -> M end.
+    {Server, ok} = receive M -> M end.
 
     
 
@@ -2574,15 +2531,15 @@ otp_7816_send_data(Socket, Data, Loops) ->
     
     
 otp_7816_server(Client) ->
-    ?line {ok, LSocket} = gen_tcp:listen(0, [binary, {packet, 4},
+    {ok, LSocket} = gen_tcp:listen(0, [binary, {packet, 4},
 					     {active, false}]),
-    ?line {ok, {_, PortNum}} = inet:sockname(LSocket),
+    {ok, {_, PortNum}} = inet:sockname(LSocket),
     io:format("Listening on ~w with port number ~p\n", [LSocket, PortNum]),
     Client ! {self(), ready, PortNum},
 
-    ?line {ok, CSocket} = gen_tcp:accept(LSocket),
+    {ok, CSocket} = gen_tcp:accept(LSocket),
     io:format("Server got connection...\n",[]),
-    ?line gen_tcp:close(LSocket),
+    gen_tcp:close(LSocket),
 
     otp_7816_server_loop(CSocket),
 
@@ -2596,13 +2553,13 @@ otp_7816_server_loop(CSocket) ->
 	{Client, recv, RecvBytes} -> 
 	    io:format("Server start receiving...\n",[]),
 
-	    ?line ok = otp_7816_recv(CSocket, RecvBytes),
+	    ok = otp_7816_recv(CSocket, RecvBytes),
 	    
 	    Client ! {self(), ok},
 	    otp_7816_server_loop(CSocket);
 	
 	{Client, closed} ->
-	    ?line {error, closed} = gen_tcp:recv(CSocket, 0, 1000),
+	    {error, closed} = gen_tcp:recv(CSocket, 0, 1000),
 	    Client ! {self(), closed}
     end.
 
@@ -2611,7 +2568,7 @@ otp_7816_recv(_, 0) ->
     io:format("Server got all.\n",[]),
     ok;
 otp_7816_recv(CSocket, BytesLeft) ->
-    ?line case gen_tcp:recv(CSocket, 0, 1000) of
+    case gen_tcp:recv(CSocket, 0, 1000) of
 	      {ok, Bin} when byte_size(Bin) =< BytesLeft -> 
 		  io:format("Server received ~p of ~p bytes.\n",[size(Bin), BytesLeft]),
 		  otp_7816_recv(CSocket, BytesLeft - byte_size(Bin));
@@ -2623,8 +2580,8 @@ otp_7816_recv(CSocket, BytesLeft) ->
 otp_8102(doc) -> ["Receive a packet with a faulty packet header"];
 otp_8102(suite) -> [];
 otp_8102(Config) when is_list(Config) ->
-    ?line {ok, LSocket} = gen_tcp:listen(0, []),
-    ?line {ok, {_, PortNum}} = inet:sockname(LSocket),
+    {ok, LSocket} = gen_tcp:listen(0, []),
+    {ok, {_, PortNum}} = inet:sockname(LSocket),
     io:format("Listening on ~w with port number ~p\n", [LSocket, PortNum]),
 
     [otp_8102_do(LSocket, PortNum, otp_8102_packet(Type,Size))
@@ -2644,18 +2601,18 @@ otp_8102_packet({cdr,little}, Size) ->
 otp_8102_do(LSocket, PortNum, {Bin,PType}) ->
 
     io:format("Connect with packet option ~p ...\n",[PType]),
-    ?line {ok, RSocket} = gen_tcp:connect("localhost", PortNum, [binary,
+    {ok, RSocket} = gen_tcp:connect("localhost", PortNum, [binary,
 								 {packet,PType},
 								 {active,true}]),
-    ?line {ok, SSocket} = gen_tcp:accept(LSocket),
+    {ok, SSocket} = gen_tcp:accept(LSocket),
 
     io:format("Got connection, sending ~p...\n",[Bin]),
 
-    ?line ok = gen_tcp:send(SSocket, Bin),
+    ok = gen_tcp:send(SSocket, Bin),
 
     io:format("Sending complete...\n",[]),
 
-    ?line {tcp_error,RSocket,emsgsize} = receive M -> M end,
+    {tcp_error,RSocket,emsgsize} = receive M -> M end,
 
     io:format("Got error msg, ok.\n",[]),
     gen_tcp:close(SSocket),    
@@ -2664,61 +2621,61 @@ otp_8102_do(LSocket, PortNum, {Bin,PType}) ->
 otp_9389(doc) -> ["Verify packet_size handles long HTTP header lines"];
 otp_9389(suite) -> [];
 otp_9389(Config) when is_list(Config) ->
-    ?line {ok, LS} = gen_tcp:listen(0, [{active,false}]),
-    ?line {ok, {_, PortNum}} = inet:sockname(LS),
+    {ok, LS} = gen_tcp:listen(0, [{active,false}]),
+    {ok, {_, PortNum}} = inet:sockname(LS),
     io:format("Listening on ~w with port number ~p\n", [LS, PortNum]),
     OrigLinkHdr = "/" ++ string:chars($S, 8192),
     _Server = spawn_link(
                 fun() ->
-                        ?line {ok, S} = gen_tcp:accept(LS),
-                        ?line ok = inet:setopts(S, [{packet_size, 16384}]),
-                        ?line ok = otp_9389_loop(S, OrigLinkHdr),
-                        ?line ok = gen_tcp:close(S)
+                        {ok, S} = gen_tcp:accept(LS),
+                        ok = inet:setopts(S, [{packet_size, 16384}]),
+                        ok = otp_9389_loop(S, OrigLinkHdr),
+                        ok = gen_tcp:close(S)
                 end),
-    ?line {ok, S} = gen_tcp:connect("localhost", PortNum,
+    {ok, S} = gen_tcp:connect("localhost", PortNum,
                                     [binary, {active, false}]),
     Req = "GET / HTTP/1.1\r\n"
         ++ "Host: localhost\r\n"
         ++ "Link: " ++ OrigLinkHdr ++ "\r\n\r\n",
-    ?line ok = gen_tcp:send(S, Req),
-    ?line ok = inet:setopts(S, [{packet, http}]),
-    ?line {ok, {http_response, {1,1}, 200, "OK"}} = gen_tcp:recv(S, 0),
-    ?line ok = inet:setopts(S, [{packet, httph}, {packet_size, 16384}]),
-    ?line {ok, {http_header, _, 'Content-Length', _, "0"}} = gen_tcp:recv(S, 0),
-    ?line {ok, {http_header, _, "Link", _, LinkHdr}} = gen_tcp:recv(S, 0),
-    ?line true = (LinkHdr == OrigLinkHdr),
+    ok = gen_tcp:send(S, Req),
+    ok = inet:setopts(S, [{packet, http}]),
+    {ok, {http_response, {1,1}, 200, "OK"}} = gen_tcp:recv(S, 0),
+    ok = inet:setopts(S, [{packet, httph}, {packet_size, 16384}]),
+    {ok, {http_header, _, 'Content-Length', _, "0"}} = gen_tcp:recv(S, 0),
+    {ok, {http_header, _, "Link", _, LinkHdr}} = gen_tcp:recv(S, 0),
+    true = (LinkHdr == OrigLinkHdr),
     ok = gen_tcp:close(S),
     ok = gen_tcp:close(LS),
     ok.
 
 otp_9389_loop(S, OrigLinkHdr) ->
-    ?line ok = inet:setopts(S, [{active,once},{packet,http}]),
+    ok = inet:setopts(S, [{active,once},{packet,http}]),
     receive
         {http, S, {http_request, 'GET', _, _}} ->
-            ?line ok = otp_9389_loop(S, OrigLinkHdr, undefined)
+            ok = otp_9389_loop(S, OrigLinkHdr, undefined)
     after
         3000 ->
-            ?line error({timeout,request_line})
+            error({timeout,request_line})
     end.
 otp_9389_loop(S, OrigLinkHdr, ok) ->
-    ?line Resp = "HTTP/1.1 200 OK\r\nContent-length: 0\r\n" ++
+    Resp = "HTTP/1.1 200 OK\r\nContent-length: 0\r\n" ++
         "Link: " ++ OrigLinkHdr ++ "\r\n\r\n",
-    ?line ok = gen_tcp:send(S, Resp);
+    ok = gen_tcp:send(S, Resp);
 otp_9389_loop(S, OrigLinkHdr, State) ->
-    ?line ok = inet:setopts(S, [{active,once}, {packet,httph}]),
+    ok = inet:setopts(S, [{active,once}, {packet,httph}]),
     receive
         {http, S, http_eoh} ->
-            ?line otp_9389_loop(S, OrigLinkHdr, ok);
+            otp_9389_loop(S, OrigLinkHdr, ok);
         {http, S, {http_header, _, "Link", _, LinkHdr}} ->
-            ?line LinkHdr = OrigLinkHdr,
-            ?line otp_9389_loop(S, OrigLinkHdr, State);
+            LinkHdr = OrigLinkHdr,
+            otp_9389_loop(S, OrigLinkHdr, State);
         {http, S, {http_header, _, _Hdr, _, _Val}} ->
-            ?line otp_9389_loop(S, OrigLinkHdr, State);
+            otp_9389_loop(S, OrigLinkHdr, State);
         {http, S, {http_error, Err}} ->
-            ?line error({error, Err})
+            error({error, Err})
     after
         3000 ->
-            ?line error({timeout,header})
+            error({timeout,header})
     end.
 
 wrapping_oct(doc) ->
@@ -2729,7 +2686,7 @@ wrapping_oct(Config) when is_list(Config) ->
     {ok,Sock} = gen_tcp:listen(0,[{active,false},{mode,binary}]),
     {ok,Port} = inet:port(Sock),
     spawn_link(?MODULE,oct_acceptor,[Sock]),
-    Res = oct_datapump(Port,16#1FFFFFFFF),
+    Res = oct_datapump(Port,16#10000FFFF),
     gen_tcp:close(Sock),
     ok = Res,
     ok.
diff --git a/lib/kernel/test/heart_SUITE.erl b/lib/kernel/test/heart_SUITE.erl
index 35d3b75b34..43224cf554 100644
--- a/lib/kernel/test/heart_SUITE.erl
+++ b/lib/kernel/test/heart_SUITE.erl
@@ -562,13 +562,15 @@ suicide_by_heart() ->
 generate(Module, Attributes, FunStrings) ->
     FunForms = function_forms(FunStrings),
     Forms    = [
-	{attribute,1,module,Module},
-	{attribute,2,export,[FA || {FA,_} <- FunForms]}
-    ] ++ [{attribute, 3, A, V}|| {A, V} <- Attributes] ++
+	{attribute,a(1),module,Module},
+	{attribute,a(2),export,[FA || {FA,_} <- FunForms]}
+    ] ++ [{attribute, a(3), A, V}|| {A, V} <- Attributes] ++
     [ Function || {_, Function} <- FunForms],
     {ok, Module, Bin} = compile:forms(Forms),
     Bin.
 
+a(L) ->
+    erl_anno:new(L).
 
 function_forms([]) -> [];
 function_forms([S|Ss]) ->
diff --git a/lib/kernel/test/inet_SUITE.erl b/lib/kernel/test/inet_SUITE.erl
index 44a32fc1ec..c77de9316f 100644
--- a/lib/kernel/test/inet_SUITE.erl
+++ b/lib/kernel/test/inet_SUITE.erl
@@ -569,8 +569,11 @@ parse_address(Config) when is_list(Config) ->
 	 "::-1",
 	 "::g",
 	 "f:f11::10100:2",
+	 "f:f11::01100:2",
 	 "::17000",
+	 "::01700",
 	 "10000::",
+	 "01000::",
 	 "::8:7:6:5:4:3:2:1",
 	 "8:7:6:5:4:3:2:1::",
 	 "8:7:6:5:4::3:2:1",
diff --git a/lib/kernel/test/interactive_shell_SUITE.erl b/lib/kernel/test/interactive_shell_SUITE.erl
index 7f6024f642..89c574b025 100644
--- a/lib/kernel/test/interactive_shell_SUITE.erl
+++ b/lib/kernel/test/interactive_shell_SUITE.erl
@@ -48,12 +48,7 @@ groups() ->
     [].
 
 init_per_suite(Config) ->
-    Term = case os:getenv("TERM") of
-	       List when is_list(List) ->
-		   List;
-	       _ ->
-		   "dumb"
-	   end,
+    Term = os:getenv("TERM", "dumb"),
     os:putenv("TERM","vt100"),
     DefShell = get_default_shell(),
     [{default_shell,DefShell},{term,Term}|Config].
@@ -723,8 +718,7 @@ toerl_loop(Port,Acc) ->
     end.
 	
 millistamp() ->
-    {Mega, Secs, Micros} = erlang:now(),
-    (Micros div 1000) + Secs * 1000 + Mega * 1000000000.
+    erlang:monotonic_time(milli_seconds).
     
 get_data_within(Port, X, Acc) when X =< 0 ->
     ?dbg({get_data_within, X, Acc, ?LINE}),
diff --git a/lib/kernel/test/pdict_SUITE.erl b/lib/kernel/test/pdict_SUITE.erl
index 98cff0222e..4b60beb9dc 100644
--- a/lib/kernel/test/pdict_SUITE.erl
+++ b/lib/kernel/test/pdict_SUITE.erl
@@ -31,7 +31,7 @@
 
 -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, 
 	 init_per_group/2,end_per_group/2,
-	 simple/1, complicated/1, heavy/1, info/1]).
+	 simple/1, complicated/1, heavy/1, simple_all_keys/1, info/1]).
 -export([init_per_testcase/2, end_per_testcase/2]).
 -export([other_process/2]).
 
@@ -46,7 +46,7 @@ end_per_testcase(_Case, Config) ->
 suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() -> 
-    [simple, complicated, heavy, info].
+    [simple, complicated, heavy, simple_all_keys, info].
 
 groups() -> 
     [].
@@ -70,6 +70,7 @@ simple(suite) ->
     [];
 simple(Config) when is_list(Config) ->
     XX = get(),
+    ok = match_keys(XX),
     erase(),
     L = [a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,
 	    q,r,s,t,u,v,x,y,z,'A','B','C','D'],
@@ -105,6 +106,7 @@ simple(Config) when is_list(Config) ->
 
 complicated(Config) when is_list(Config) ->
     Previous = get(),
+    ok = match_keys(Previous),
     Previous = erase(),
     N = case ?t:is_debug() of
 	    false -> 500000;
@@ -113,8 +115,10 @@ complicated(Config) when is_list(Config) ->
     comp_1(N),
     comp_2(N),
     N = comp_3(lists:sort(get()), 1),
+    ok = match_keys(get()),
     comp_4(get()),
     [] = get(),
+    [] = get_keys(),
     [put(Key, Value) || {Key,Value} <- Previous],
     ok.
 
@@ -160,6 +164,26 @@ heavy(Config) when is_list(Config) ->
     [put(Key, Value) || {Key,Value} <- XX],
     ok.
 
+simple_all_keys(Config) when is_list(Config) ->
+    erase(),
+    ok = simple_all_keys_add_loop(1000),
+    [] = get_keys(),
+    [] = get(),
+    ok.
+
+simple_all_keys_add_loop(0) ->
+    simple_all_keys_del_loop(erlang:get_keys());
+simple_all_keys_add_loop(N) ->
+   put(gen_key(N),value),
+   ok = match_keys(get()),
+   simple_all_keys_add_loop(N-1).
+
+simple_all_keys_del_loop([]) -> ok;
+simple_all_keys_del_loop([K|Ks]) ->
+    value = erase(K),
+    ok = match_keys(get()),
+    simple_all_keys_del_loop(Ks).
+
 info(doc) ->
     ["Tests process_info(Pid, dictionary)"];
 info(suite) ->
@@ -339,3 +363,8 @@ m(A,B,Module,Line) ->
 		      [A,B,Module,Line]),
 	    exit({no_match,{A,B},Module,Line})
     end.
+
+match_keys(All) ->
+    Ks = lists:sort([K||{K,_}<-All]),
+    Ks = lists:sort(erlang:get_keys()),
+    ok.
diff --git a/lib/kernel/test/rpc_SUITE.erl b/lib/kernel/test/rpc_SUITE.erl
index 7adef49014..867b448b36 100644
--- a/lib/kernel/test/rpc_SUITE.erl
+++ b/lib/kernel/test/rpc_SUITE.erl
@@ -456,32 +456,33 @@ called_throws(Config) when is_list(Config) ->
 
 call_benchmark(Config) when is_list(Config) ->
     Timetrap = ?t:timetrap(?t:seconds(120)),
-    ?line PA = filename:dirname(code:which(?MODULE)),
-    ?line {ok, Node} = ?t:start_node(rpc_SUITE_call_benchmark, slave, 
-				     [{args, "-pa " ++ PA}]),
+    PA = filename:dirname(code:which(?MODULE)),
+    {ok, Node} = ?t:start_node(rpc_SUITE_call_benchmark, slave,
+			       [{args, "-pa " ++ PA}]),
     Iter = case erlang:system_info(modified_timing_level) of
 	       undefined -> 10000;
-	       _ -> 500				%Moified timing - spawn is slower
+	       _ -> 500		     %Modified timing - spawn is slower
 	   end,
-    ?line do_call_benchmark(Node, Iter),
+    Res = do_call_benchmark(Node, Iter),
+    ?t:stop_node(Node),
     ?t:timetrap_cancel(Timetrap),
-    ok.
+    Res.
 
 do_call_benchmark(Node, M) when is_integer(M), M > 0 ->
-    do_call_benchmark(Node, erlang:now(), 0, M).
-
-do_call_benchmark(Node, {A,B,C}, M, M) ->
-    ?line {D,E,F} = erlang:now(),
-    ?line T = float(D-A)*1000000.0 + float(E-B) + float(F-C)*0.000001,
-    ?line Q = 3.0 * float(M) / T,
-    ?line ?t:stop_node(Node),
-    {comment, 
-     lists:flatten([float_to_list(Q)," RPC calls per second"])};
-do_call_benchmark(Node, Then, I, M) ->
-    ?line Node = rpc:call(Node, erlang, node, []),
-    ?line _ = rpc:call(Node, erlang, whereis, [rex]),
-    ?line 3 = rpc:call(Node, erlang, '+', [1,2]),
-    ?line do_call_benchmark(Node, Then, I+1, M).
+    {Micros,ok} = timer:tc(fun() ->
+				   do_call_benchmark(Node, 0, M)
+			   end),
+    Calls = 3*M,
+    S = io_lib:format("~p RPC calls/second", [Calls*1000000 div Micros]),
+    {comment,lists:flatten(S)}.
+
+do_call_benchmark(_Node, M, M) ->
+    ok;
+do_call_benchmark(Node, I, M) ->
+    Node = rpc:call(Node, erlang, node, []),
+    _ = rpc:call(Node, erlang, whereis, [rex]),
+    3 = rpc:call(Node, erlang, '+', [1,2]),
+    do_call_benchmark(Node, I+1, M).
 
 async_call(Config) when is_list(Config) ->
     Dog = ?t:timetrap(?t:seconds(120)),
diff --git a/lib/kernel/test/zlib_SUITE.erl b/lib/kernel/test/zlib_SUITE.erl
index 3be6f39d95..41c19fce51 100644
--- a/lib/kernel/test/zlib_SUITE.erl
+++ b/lib/kernel/test/zlib_SUITE.erl
@@ -82,7 +82,7 @@ groups() ->
        api_deflateSetDictionary, api_deflateReset,
        api_deflateParams, api_deflate, api_deflateEnd,
        api_inflateInit, api_inflateSetDictionary,
-       api_inflateSync, api_inflateReset, api_inflate,
+       api_inflateSync, api_inflateReset, api_inflate, api_inflateChunk,
        api_inflateEnd, api_setBufsz, api_getBufsz, api_crc32,
        api_adler32, api_getQSize, api_un_compress, api_un_zip,
        api_g_un_zip]},
@@ -146,8 +146,6 @@ api_deflateInit(Config) when is_list(Config) ->
     ?m(?BARG, zlib:deflateInit(Z1,default,deflated,-20,8,default)),
     ?m(?BARG, zlib:deflateInit(Z1,default,deflated,-7,8,default)),
     ?m(?BARG, zlib:deflateInit(Z1,default,deflated,7,8,default)),
-    ?m(?BARG, zlib:deflateInit(Z1,default,deflated,-8,8,default)),
-    ?m(?BARG, zlib:deflateInit(Z1,default,deflated,8,8,default)),
     
     ?m(?BARG, zlib:deflateInit(Z1,default,deflated,-15,0,default)),
     ?m(?BARG, zlib:deflateInit(Z1,default,deflated,-15,10,default)),    
@@ -169,7 +167,7 @@ api_deflateInit(Config) when is_list(Config) ->
 			  ?m(ok, zlib:deflateInit(Z12,default,deflated,-Wbits,8,default)),
 			  ?m(ok,zlib:close(Z11)),
 			  ?m(ok,zlib:close(Z12))
-		  end, lists:seq(9, 15)),
+		  end, lists:seq(8, 15)),
     
     lists:foreach(fun(MemLevel) ->
 			  ?line Z = zlib:open(),
@@ -277,7 +275,7 @@ api_inflateInit(Config) when is_list(Config) ->
 			  ?m(ok, zlib:inflateInit(Z12,-Wbits)),
 			  ?m(ok,zlib:close(Z11)),
 			  ?m(ok,zlib:close(Z12))
-		  end, lists:seq(9,15)),
+		  end, lists:seq(8,15)),
     ?m(?BARG, zlib:inflateInit(gurka, -15)),
     ?m(?BARG, zlib:inflateInit(Z1, 7)),
     ?m(?BARG, zlib:inflateInit(Z1, -7)),
@@ -357,6 +355,39 @@ api_inflate(Config) when is_list(Config) ->
     ?m({'EXIT',{data_error,_}}, zlib:inflate(Z1, <<2,1,2,1,2>>)), 
     ?m(ok, zlib:close(Z1)).
 
+api_inflateChunk(doc) -> "Test inflateChunk";
+api_inflateChunk(suite) -> [];
+api_inflateChunk(Config) when is_list(Config) ->
+    ChunkSize = 1024,
+    Data = << <<(I rem 150)>> || I <- lists:seq(1, 3 * ChunkSize) >>,
+    Part1 = binary:part(Data, 0, ChunkSize),
+    Part2 = binary:part(Data, ChunkSize, ChunkSize),
+    Part3 = binary:part(Data, ChunkSize * 2, ChunkSize),
+    ?line Compressed = zlib:compress(Data),
+    ?line Z1 = zlib:open(),
+    ?line zlib:setBufSize(Z1, ChunkSize),
+    ?m(ok, zlib:inflateInit(Z1)),
+    ?m([], zlib:inflateChunk(Z1, <<>>)),
+    ?m({more, Part1}, zlib:inflateChunk(Z1, Compressed)),
+    ?m({more, Part2}, zlib:inflateChunk(Z1)),
+    ?m(Part3, zlib:inflateChunk(Z1)),
+    ?m(ok, zlib:inflateEnd(Z1)),
+
+    ?m(ok, zlib:inflateInit(Z1)),
+    ?m({more, Part1}, zlib:inflateChunk(Z1, Compressed)),
+
+    ?m(ok, zlib:inflateReset(Z1)),
+
+    ?line zlib:setBufSize(Z1, size(Data)),
+    ?m(Data, zlib:inflateChunk(Z1, Compressed)),
+    ?m(ok, zlib:inflateEnd(Z1)),
+
+    ?m(ok, zlib:inflateInit(Z1)),
+    ?m(?BARG, zlib:inflateChunk(gurka, Compressed)),
+    ?m(?BARG, zlib:inflateChunk(Z1, 4384)),
+    ?m({'EXIT',{data_error,_}}, zlib:inflateEnd(Z1)),
+    ?m(ok, zlib:close(Z1)).
+
 api_inflateEnd(doc) -> "Test inflateEnd";
 api_inflateEnd(suite) -> [];
 api_inflateEnd(Config) when is_list(Config) ->
diff --git a/lib/kernel/vsn.mk b/lib/kernel/vsn.mk
index e1d447a465..c912da0091 100644
--- a/lib/kernel/vsn.mk
+++ b/lib/kernel/vsn.mk
@@ -1 +1 @@
-KERNEL_VSN = 3.2
+KERNEL_VSN = 4.0
diff --git a/lib/megaco/doc/src/megaco.xml b/lib/megaco/doc/src/megaco.xml
index dff1c3afc6..0a8dfe8a13 100644
--- a/lib/megaco/doc/src/megaco.xml
+++ b/lib/megaco/doc/src/megaco.xml
@@ -336,7 +336,7 @@ megaco_incr_timer() = #megaco_incr_timer{}
           <tag><c><![CDATA[request_keep_alive_timeout]]></c></tag>
           <item>
             <p>Specifies the timeout time for the request-keep-alive timer. </p>
-            <p>This timer is started when the <em>first</em> reply to an asynchroneous
+            <p>This timer is started when the <em>first</em> reply to an asynchronous
               request (issued using the 
               <seealso marker="megaco#cast">megaco:cast/3</seealso> function)
               arrives. As long as this timer is running, replies will 
@@ -837,7 +837,7 @@ megaco_incr_timer() = #megaco_incr_timer{}
           <tag><c><![CDATA[request_keep_alive_timeout]]></c></tag>
           <item>
             <p>Specifies the timeout time for the request-keep-alive timer. </p>
-            <p>This timer is started when the <em>first</em> reply to an asynchroneous
+            <p>This timer is started when the <em>first</em> reply to an asynchronous
               request (issued using the 
               <seealso marker="megaco#cast">megaco:cast/3</seealso> function)
               arrives. As long as this timer is running, replies will 
diff --git a/lib/megaco/src/app/megaco.app.src b/lib/megaco/src/app/megaco.app.src
index 6ab85a1bbc..573b1857f6 100644
--- a/lib/megaco/src/app/megaco.app.src
+++ b/lib/megaco/src/app/megaco.app.src
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1999-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -113,8 +113,8 @@
   {applications, [stdlib, kernel]},
   {env, []},
   {mod, {megaco_sup, []}},
-  {runtime_dependencies, ["stdlib-2.0","runtime_tools-1.8.14","kernel-3.0",
-			  "et-1.5","erts-6.0","debugger-4.0",
+  {runtime_dependencies, ["stdlib-2.5","runtime_tools-1.8.14","kernel-3.0",
+			  "et-1.5","erts-7.0","debugger-4.0",
 			  "asn1-3.0"]}
  ]}.
 
diff --git a/lib/megaco/src/app/megaco.appup.src b/lib/megaco/src/app/megaco.appup.src
index 92504e8e87..1c55a92b55 100644
--- a/lib/megaco/src/app/megaco.appup.src
+++ b/lib/megaco/src/app/megaco.appup.src
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2001-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -183,11 +183,15 @@
 %%      |
 %%      v
 %%   3.17.3
+%%      |
+%%      v
+%%   3.18
 %%
 %%
 
 {"%VSN%",
  [
+  {"3.17.3", [{restart_application,megaco}]},
   {"3.17.2", []},
   {"3.17.1", [{restart_application,megaco}]},
   {"3.17.0.3", [{restart_application,megaco}]},
@@ -202,6 +206,7 @@
   }
  ],
  [
+  {"3.17.3", [{restart_application,megaco}]},
   {"3.17.2", []},
   {"3.17.1", [{restart_application,megaco}]},
   {"3.17.0.3", [{restart_application,megaco}]},
diff --git a/lib/megaco/src/engine/megaco_trans_sender.erl b/lib/megaco/src/engine/megaco_trans_sender.erl
index 710fef405a..e07f404289 100644
--- a/lib/megaco/src/engine/megaco_trans_sender.erl
+++ b/lib/megaco/src/engine/megaco_trans_sender.erl
@@ -672,8 +672,7 @@ to(To, Start) ->
 
 %% Time in milli seconds
 t() ->
-    {A,B,C} = erlang:now(),
-    A*1000000000+B*1000+(C div 1000).
+    erlang:monotonic_time(milli_seconds).
 
 warning_msg(F, A) ->
     ?megaco_warning("Transaction sender: " ++ F, A).
diff --git a/lib/megaco/vsn.mk b/lib/megaco/vsn.mk
index 8687d622e9..ede36e3fe6 100644
--- a/lib/megaco/vsn.mk
+++ b/lib/megaco/vsn.mk
@@ -2,7 +2,7 @@
 
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 1997-2014. All Rights Reserved.
+# Copyright Ericsson AB 1997-2015. All Rights Reserved.
 #
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
@@ -18,6 +18,6 @@
 # %CopyrightEnd%
 
 APPLICATION = megaco
-MEGACO_VSN  = 3.17.3
+MEGACO_VSN  = 3.18
 PRE_VSN     =
 APP_VSN     = "$(APPLICATION)-$(MEGACO_VSN)$(PRE_VSN)"
diff --git a/lib/mnesia/doc/src/mnesia.xml b/lib/mnesia/doc/src/mnesia.xml
index ed5b879f7f..856a7594a7 100644
--- a/lib/mnesia/doc/src/mnesia.xml
+++ b/lib/mnesia/doc/src/mnesia.xml
@@ -3019,6 +3019,12 @@ raise(Name, Amount) ->
           totally unpredictable.</p>
       </item>
       <item>
+        <p><c>-mnesia dump_disc_copies_at_startup true | false</c>.
+          If set to false, this disables the dumping of <c>disc_copies</c>
+          tables during startup while tables are being loaded. The default
+          is true.</p>
+      </item>
+      <item>
         <p><c>-mnesia dump_log_load_regulation true | false</c>.
           Controls if the log dumps should be performed as fast as
           possible or if the dumper should do its own load
diff --git a/lib/mnesia/src/mnesia.app.src b/lib/mnesia/src/mnesia.app.src
index e755864792..c78a7cba1e 100644
--- a/lib/mnesia/src/mnesia.app.src
+++ b/lib/mnesia/src/mnesia.app.src
@@ -48,6 +48,6 @@
 	       ]},
   {applications, [kernel, stdlib]},
   {mod, {mnesia_sup, []}},
-  {runtime_dependencies, ["stdlib-2.0","kernel-3.0","erts-6.0"]}]}.
+  {runtime_dependencies, ["stdlib-2.0","kernel-3.0","erts-7.0"]}]}.
 
 
diff --git a/lib/mnesia/src/mnesia.erl b/lib/mnesia/src/mnesia.erl
index 8f14831ad3..b9c2fd915c 100644
--- a/lib/mnesia/src/mnesia.erl
+++ b/lib/mnesia/src/mnesia.erl
@@ -145,7 +145,7 @@
 %% Local function in order to avoid external function call
 val(Var) ->
     case ?catch_val(Var) of
-	{'EXIT', Reason} -> mnesia_lib:other_val(Var, Reason);
+	{'EXIT', _} -> mnesia_lib:other_val(Var);
 	Value -> Value
     end.
 
@@ -306,6 +306,8 @@ ms() ->
 
 -spec abort(_) -> no_return().
 
+abort(Reason = {aborted, _}) ->
+    exit(Reason);
 abort(Reason) ->
     exit({aborted, Reason}).
 
@@ -807,7 +809,7 @@ next(Tid,Ts,Tab,Key)
 	tid ->
 	    lock_table(Tid, Ts, Tab, read),
 	    do_fixtable(Tab,Ts),
-	    New = (catch dirty_next(Tab,Key)),
+	    New = ?CATCH(dirty_next(Tab,Key)),
 	    stored_keys(Tab,New,Key,Ts,next,
 			val({Tab, setorbag}));
 	_Protocol ->
@@ -833,7 +835,7 @@ prev(Tid,Ts,Tab,Key)
 	tid ->
 	    lock_table(Tid, Ts, Tab, read),
 	    do_fixtable(Tab,Ts),
-	    New = (catch dirty_prev(Tab,Key)),
+	    New = ?CATCH(dirty_prev(Tab,Key)),
 	    stored_keys(Tab,New,Key,Ts,prev,
 			val({Tab, setorbag}));
 	_Protocol ->
@@ -965,7 +967,7 @@ foldl(Fun, Acc, Tab, LockKind) when is_function(Fun) ->
 
 foldl(ActivityId, Opaque, Fun, Acc, Tab, LockKind) ->
     {Type, Prev} = init_iteration(ActivityId, Opaque, Tab, LockKind),
-    Res = (catch do_foldl(ActivityId, Opaque, Tab, dirty_first(Tab), Fun, Acc, Type, Prev)),
+    Res = ?CATCH(do_foldl(ActivityId, Opaque, Tab, dirty_first(Tab), Fun, Acc, Type, Prev)),
     close_iteration(Res, Tab).
 
 do_foldl(A, O, Tab, '$end_of_table', Fun, RAcc, _Type, Stored) ->
@@ -1011,7 +1013,7 @@ foldr(ActivityId, Opaque, Fun, Acc, Tab, LockKind) ->
 	    true ->      %% Order doesn't matter for set and bag
 		TempPrev %% Keep the order so we can use ordsets:del_element
 	end,
-    Res = (catch do_foldr(ActivityId, Opaque, Tab, dirty_last(Tab), Fun, Acc, Type, Prev)),
+    Res = ?CATCH(do_foldr(ActivityId, Opaque, Tab, dirty_last(Tab), Fun, Acc, Type, Prev)),
     close_iteration(Res, Tab).
 
 do_foldr(A, O, Tab, '$end_of_table', Fun, RAcc, _Type, Stored) ->
@@ -1626,13 +1628,7 @@ dirty_read(Oid) ->
 
 dirty_read(Tab, Key)
   when is_atom(Tab), Tab /= schema ->
-%%    case catch ?ets_lookup(Tab, Key) of
-%%        {'EXIT', _} ->
-            %% Bad luck, we have to perform a real lookup
-            dirty_rpc(Tab, mnesia_lib, db_get, [Tab, Key]);
-%%        Val ->
-%%            Val
-%%    end;
+    dirty_rpc(Tab, mnesia_lib, db_get, [Tab, Key]);
 dirty_read(Tab, _Key) ->
     abort({bad_type, Tab}).
 
@@ -1905,21 +1901,21 @@ any_table_info(Tab, _Item) ->
     abort({bad_type, Tab}).
 
 raw_table_info(Tab, Item) ->
-    case ?catch_val({Tab, storage_type}) of
-	ram_copies ->
-	    info_reply(catch ?ets_info(Tab, Item), Tab, Item);
-	disc_copies ->
-	    info_reply(catch ?ets_info(Tab, Item), Tab, Item);
-	disc_only_copies ->
-	    info_reply(catch dets:info(Tab, Item), Tab, Item);
-	unknown ->
-	    bad_info_reply(Tab, Item);
-	{'EXIT', _} ->
+    try
+	case ?ets_lookup_element(mnesia_gvar, {Tab, storage_type}, 2) of
+	    ram_copies ->
+		info_reply(?ets_info(Tab, Item), Tab, Item);
+	    disc_copies ->
+		info_reply(?ets_info(Tab, Item), Tab, Item);
+	    disc_only_copies ->
+		info_reply(dets:info(Tab, Item), Tab, Item);
+	    unknown ->
+		bad_info_reply(Tab, Item)
+	end
+    catch error:_ ->
 	    bad_info_reply(Tab, Item)
     end.
 
-info_reply({'EXIT', _Reason}, Tab, Item) ->
-    bad_info_reply(Tab, Item);
 info_reply({error, _Reason}, Tab, Item) ->
     bad_info_reply(Tab, Item);
 info_reply(Val, _Tab, _Item) ->
@@ -2063,9 +2059,8 @@ storage_count(T, {U, R, D, DO}) ->
     end.
 
 system_info(Item) ->
-    case catch system_info2(Item) of
-	{'EXIT',Error} -> abort(Error);
-	Other -> Other
+    try system_info2(Item)
+    catch _:Error -> abort(Error)
     end.
 
 system_info2(all) ->
@@ -2171,7 +2166,7 @@ system_info2(version) ->
 		    Version;
 		false ->
 		    %% Ensure that it does not match
-		    {mnesia_not_loaded, node(), now()}
+		    {mnesia_not_loaded, node(), erlang:timestamp()}
 	    end;
 	Version ->
 	    Version
@@ -2381,11 +2376,10 @@ del_table_index(Tab, Ix) ->
     mnesia_schema:del_table_index(Tab, Ix).
 
 transform_table(Tab, Fun, NewA) ->
-    case catch val({Tab, record_name}) of
-	{'EXIT', Reason} ->
-	    mnesia:abort(Reason);
-	OldRN ->
-	    mnesia_schema:transform_table(Tab, Fun, NewA, OldRN)
+    try val({Tab, record_name}) of
+	OldRN -> mnesia_schema:transform_table(Tab, Fun, NewA, OldRN)
+    catch exit:Reason ->
+	    mnesia:abort(Reason)
     end.
 
 transform_table(Tab, Fun, NewA, NewRN) ->
@@ -2796,7 +2790,7 @@ pre_qlc(Opts, Tab) ->
     end.
 
 post_qlc(Tab) ->
-    case catch get(mnesia_activity_state) of
+    case get(mnesia_activity_state) of
 	{_,#tid{},_} -> ok;
 	_ ->
 	    case ?catch_val({Tab, setorbag}) of
diff --git a/lib/mnesia/src/mnesia.hrl b/lib/mnesia/src/mnesia.hrl
index c8010d5466..86b6fd908f 100644
--- a/lib/mnesia/src/mnesia.hrl
+++ b/lib/mnesia/src/mnesia.hrl
@@ -39,7 +39,12 @@
 -define(ets_delete_table(Tab), ets:delete(Tab)).
 -define(ets_fixtable(Tab, Bool), ets:fixtable(Tab, Bool)).
 
--define(catch_val(Var), (catch ?ets_lookup_element(mnesia_gvar, Var, 2))).
+
+-define(SAFE(OP), try (OP) catch error:_ -> ok end).
+-define(CATCH(OP), try (OP) catch _:_Reason -> {'EXIT', _Reason} end).
+
+-define(catch_val(Var), (try ?ets_lookup_element(mnesia_gvar, Var, 2)
+			 catch error:_ -> {'EXIT', {badarg, []}} end)).
 
 %% It's important that counter is first, since we compare tid's
 
@@ -53,7 +58,9 @@
          up_stores = [],  %% list of upper layer stores for nested trans
          level = 1}).     %% transaction level
 
--define(unique_cookie, {erlang:now(), node()}).
+-define(unique_cookie, {{erlang:monotonic_time() + erlang:time_offset(),
+			 erlang:unique_integer(),1},
+			node()}).
 
 -record(cstruct, {name,                            % Atom
 		  type = set,                      % set | bag
diff --git a/lib/mnesia/src/mnesia_bup.erl b/lib/mnesia/src/mnesia_bup.erl
index 3b084e7371..3fee952d77 100644
--- a/lib/mnesia/src/mnesia_bup.erl
+++ b/lib/mnesia/src/mnesia_bup.erl
@@ -78,24 +78,21 @@
 %% BunchOfRecords will be [] when the iteration is done.
 iterate(Mod, Fun, Opaque, Acc) ->
     R = #restore{bup_module = Mod, bup_data = Opaque},
-    case catch read_schema_section(R) of
-        {error, Reason} ->
-            {error, Reason};
-        {R2, {Header, Schema, Rest}} ->
-            case catch iter(R2, Header, Schema, Fun, Acc, Rest) of
-                {ok, R3, Res} ->
-                    catch safe_apply(R3, close_read, [R3#restore.bup_data]),
-                    {ok, Res};
-                {error, Reason} ->
-                    catch safe_apply(R2, close_read, [R2#restore.bup_data]),
-                    {error, Reason};
-                {'EXIT', Pid, Reason} ->
-                    catch safe_apply(R2, close_read, [R2#restore.bup_data]),
-                    {error, {'EXIT', Pid, Reason}};
-                {'EXIT', Reason} ->
-                    catch safe_apply(R2, close_read, [R2#restore.bup_data]),
-                    {error, {'EXIT', Reason}}
-            end
+    try read_schema_section(R) of
+	{R2, {Header, Schema, Rest}} ->
+	    try iter(R2, Header, Schema, Fun, Acc, Rest) of
+		{ok, R3, Res} ->
+		    close_read(R3),
+		    {ok, Res}
+	    catch throw:Err ->
+		    close_read(R2),
+		    Err;
+		  _:Reason ->
+		    close_read(R2),
+		    {error, {Reason, erlang:get_stacktrace()}}
+	    end
+    catch throw:{error,_} = Err ->
+	    Err
     end.
 
 iter(R, Header, Schema, Fun, Acc, []) ->
@@ -116,7 +113,7 @@ safe_apply(R, write, [_, Items]) when Items =:= [] ->
 safe_apply(R, What, Args) ->
     Abort = fun(Re) -> abort_restore(R, What, Args, Re) end,
     Mod = R#restore.bup_module,
-    case catch apply(Mod, What, Args) of
+    try apply(Mod, What, Args) of
 	{ok, Opaque, Items} when What =:= read ->
 	    {R#restore{bup_data = Opaque}, Items};
 	{ok, Opaque}  when What =/= read->
@@ -125,16 +122,19 @@ safe_apply(R, What, Args) ->
 	    Abort(Re);
 	Re ->
 	    Abort(Re)
+    catch _:Re ->
+	    Abort(Re)
     end.
 
-abort_restore(R, What, Args, Reason) ->
-    Mod = R#restore.bup_module,
-    Opaque = R#restore.bup_data,
+abort_restore(R = #restore{bup_module=Mod}, What, Args, Reason) ->
     dbg_out("Restore aborted. ~p:~p~p -> ~p~n",
             [Mod, What, Args, Reason]),
-    catch apply(Mod, close_read, [Opaque]),
+    close_read(R),
     throw({error, Reason}).
 
+close_read(#restore{bup_module=Mod, bup_data=Opaque}) ->
+    ?SAFE(Mod:close_read(Opaque)).
+
 fallback_to_schema() ->
     Fname = fallback_bup(),
     fallback_to_schema(Fname).
@@ -145,40 +145,30 @@ fallback_to_schema(Fname) ->
         {error, Reason} ->
             {error, Reason};
         Schema ->
-            case catch lookup_schema(schema, Schema) of
-                {error, _} ->
-                    {error, "No schema in fallback"};
-                List ->
-                    {ok, fallback, List}
+            try lookup_schema(schema, Schema) of
+		List -> {ok, fallback, List}
+	    catch throw:_ ->
+		    {error, "No schema in fallback"}
             end
     end.
 
 %% Opens Opaque reads schema and then close
 read_schema(Mod, Opaque) ->
     R = #restore{bup_module = Mod, bup_data = Opaque},
-    case catch read_schema_section(R) of
-        {error, Reason} ->
-            {error, Reason};
-        {R2, {_Header, Schema, _}} ->
-            catch safe_apply(R2, close_read, [R2#restore.bup_data]),
-            Schema
+    try read_schema_section(R) of
+        {_, {_Header, Schema, _}} -> Schema
+    catch throw:{error,_} = Error ->
+	    Error
+    after close_read(R)
     end.
 
 %% Open backup media and extract schema
 %% rewind backup media and leave it open
 %% Returns {R, {Header, Schema}}
 read_schema_section(R) ->
-    case catch do_read_schema_section(R) of
-        {'EXIT', Reason} ->
-            catch safe_apply(R, close_read, [R#restore.bup_data]),
-            {error, {'EXIT', Reason}};
-        {error, Reason} ->
-            catch safe_apply(R, close_read, [R#restore.bup_data]),
-            {error, Reason};
-        {R2, {H, Schema, Rest}} ->
-            Schema2 = convert_schema(H#log_header.log_version, Schema),
-            {R2, {H, Schema2, Rest}}
-    end.
+    {R2, {H, Schema, Rest}} = do_read_schema_section(R),
+    Schema2 = convert_schema(H#log_header.log_version, Schema),
+    {R2, {H, Schema2, Rest}}.
 
 do_read_schema_section(R) ->
     R2 = safe_apply(R, open_read, [R#restore.bup_data]),
@@ -201,7 +191,7 @@ do_read_schema_section(R, {ok, B, _C, Rest}, Acc) ->
     {R, {B, Acc, Rest}};
 
 do_read_schema_section(_R, {error, Reason}, _Acc) ->
-    {error, Reason}.
+    throw({error, Reason}).
 
 verify_header([H | RawSchema]) when is_record(H, log_header) ->
     Current = mnesia_log:backup_log_header(),
@@ -218,7 +208,7 @@ verify_header([H | RawSchema]) when is_record(H, log_header) ->
             {error, {"Bad kind of header. Cannot be used as backup.", H}}
     end;
 verify_header(RawSchema) ->
-    {error, {"Missing header. Cannot be used as backup.", catch hd(RawSchema)}}.
+    {error, {"Missing header. Cannot be used as backup.", ?CATCH(hd(RawSchema))}}.
 
 refresh_cookie(Schema, NewCookie) ->
     case lists:keysearch(schema, 2, Schema) of
@@ -345,7 +335,7 @@ create_schema(Ns, ok) ->
                             Str = mk_str(),
                             File = mnesia_lib:dir(Str),
                             file:delete(File),
-                            case catch make_initial_backup(Ns, File, Mod) of
+                            try make_initial_backup(Ns, File, Mod) of
                                 {ok, _Res} ->
                                     case do_install_fallback(File, Mod) of
                                         ok ->
@@ -353,8 +343,8 @@ create_schema(Ns, ok) ->
                                             ok;
                                         {error, Reason} ->
                                             {error, Reason}
-                                    end;
-                                {error, Reason} ->
+                                    end
+			    catch throw:{error, Reason} ->
                                     {error, Reason}
                             end
                     end
@@ -368,7 +358,7 @@ create_schema(_Ns, Reason) ->
     {error, Reason}.
 
 mk_str() ->
-    Now = [integer_to_list(I) || I <- tuple_to_list(now())],
+    Now = integer_to_list(erlang:unique_integer([positive])),
     lists:concat([node()] ++ Now ++ ".TMP").
 
 make_initial_backup(Ns, Opaque, Mod) ->
@@ -384,10 +374,11 @@ make_initial_backup(Ns, Opaque, Mod) ->
 do_apply(_, write, [_, Items], Opaque) when Items =:= [] ->
     Opaque;
 do_apply(Mod, What, Args, _Opaque) ->
-    case catch apply(Mod, What, Args) of
+    try apply(Mod, What, Args) of
         {ok, Opaque2} ->  Opaque2;
-        {error, Reason} -> throw({error, Reason});
-        {'EXIT', Reason} -> throw({error, {'EXIT', Reason}})
+        {error, Reason} -> throw({error, Reason})
+    catch _:Reason ->
+	    throw({error, {'EXIT', Reason}})
     end.
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -425,11 +416,11 @@ do_install_fallback(_Opaque, Args) ->
     {error, {badarg, Args}}.
 
 check_fallback_args([Arg | Tail], FA) ->
-    case catch check_fallback_arg_type(Arg, FA) of
-        {'EXIT', _Reason} ->
-            {error, {badarg, Arg}};
+    try check_fallback_arg_type(Arg, FA) of
         FA2 ->
             check_fallback_args(Tail, FA2)
+    catch error:_ ->
+	    {error, {badarg, Arg}}
     end;
 check_fallback_args([], FA) ->
     {ok, FA}.
@@ -484,7 +475,7 @@ install_fallback_master(ClientPid, FA) ->
     State = {start, FA},
     Opaque = FA#fallback_args.opaque,
     Mod = FA#fallback_args.module,
-    Res = (catch iterate(Mod, fun restore_recs/4, Opaque, State)),
+    Res = iterate(Mod, fun restore_recs/4, Opaque, State),
     unlink(ClientPid),
     ClientPid ! {self(), Res},
     exit(shutdown).
@@ -496,9 +487,7 @@ restore_recs(Recs, Header, Schema, {start, FA}) ->
     %% No records in backup
     Schema2 = convert_schema(Header#log_header.log_version, Schema),
     CreateList = lookup_schema(schema, Schema2),
-    case catch mnesia_schema:list2cs(CreateList) of
-        {'EXIT', Reason} ->
-            throw({error, {"Bad schema in restore_recs", Reason}});
+    try mnesia_schema:list2cs(CreateList) of
         Cs ->
             Ns = get_fallback_nodes(FA, Cs#cstruct.disc_copies),
             global:set_lock({{mnesia_table_lock, schema}, self()}, Ns, infinity),
@@ -508,6 +497,8 @@ restore_recs(Recs, Header, Schema, {start, FA}) ->
             Res = restore_recs(Recs, Header, Schema2, Pids),
             global:del_lock({{mnesia_table_lock, schema}, self()}, Ns),
             Res
+    catch _:Reason ->
+            throw({error, {"Bad schema in restore_recs", Reason}})
     end;
 
 restore_recs([], _Header, _Schema, Pids) ->
@@ -579,45 +570,46 @@ fallback_tmp_name() -> "FALLBACK.TMP".
 fallback_receiver(Master, FA) ->
     process_flag(trap_exit, true),
 
-    case catch register(mnesia_fallback, self()) of
-        {'EXIT', _} ->
-            Reason = {already_exists, node()},
-            local_fallback_error(Master, Reason);
-        true ->
-            FA2 = check_fallback_dir(Master, FA),
-            Bup = FA2#fallback_args.fallback_bup,
-            case mnesia_lib:exists(Bup) of
-                true ->
-                    Reason2 = {already_exists, node()},
-                    local_fallback_error(Master, Reason2);
-                false ->
-                    Mod = mnesia_backup,
-                    Tmp = FA2#fallback_args.fallback_tmp,
-                    R = #restore{mode = replace,
-                                 bup_module = Mod,
-                                 bup_data = Tmp},
-                    file:delete(Tmp),
-                    case catch fallback_receiver_loop(Master, R, FA2, schema) of
-                        {error, Reason} ->
-                            local_fallback_error(Master, Reason);
-                        Other ->
-                            exit(Other)
-                    end
-            end
-    end.
+    Res = try
+	      register(mnesia_fallback, self()),
+	      FA2 = check_fallback_dir(FA),
+	      Bup = FA2#fallback_args.fallback_bup,
+	      false = mnesia_lib:exists(Bup),
+	      Mod = mnesia_backup,
+	      Tmp = FA2#fallback_args.fallback_tmp,
+	      R = #restore{mode = replace,
+			   bup_module = Mod,
+			   bup_data = Tmp},
+	      file:delete(Tmp),
+	      fallback_receiver_loop(Master, R, FA2, schema)
+	  catch
+	      error:_ ->
+		  Reason = {already_exists, node()},
+		  local_fallback_error(Master, Reason);
+	      throw:{error, Reason} ->
+		  local_fallback_error(Master, Reason)
+	  end,
+    exit(Res).
 
 local_fallback_error(Master, Reason) ->
     Master ! {self(), {error, Reason}},
     unlink(Master),
     exit(Reason).
 
+
 check_fallback_dir(Master, FA) ->
+    try check_fallback_dir(FA)
+    catch throw:{error,Reason} ->
+	    local_fallback_error(Master, Reason)
+    end.
+
+check_fallback_dir(FA) ->
     case mnesia:system_info(schema_location) of
         ram ->
             Reason = {has_no_disc, node()},
-            local_fallback_error(Master, Reason);
+            throw({error, Reason});
         _ ->
-            Dir = check_fallback_dir_arg(Master, FA),
+            Dir = check_fallback_dir_arg(FA),
             Bup = filename:join([Dir, fallback_name()]),
             Tmp = filename:join([Dir, fallback_tmp_name()]),
             FA#fallback_args{fallback_bup = Bup,
@@ -625,22 +617,20 @@ check_fallback_dir(Master, FA) ->
                              mnesia_dir = Dir}
     end.
 
-check_fallback_dir_arg(Master, FA) ->
+check_fallback_dir_arg(FA) ->
     case FA#fallback_args.use_default_dir of
         true ->
             mnesia_lib:dir();
         false when FA#fallback_args.scope =:= local ->
             Dir = FA#fallback_args.mnesia_dir,
-            case catch mnesia_monitor:do_check_type(dir, Dir) of
-                {'EXIT', _R} ->
+            try mnesia_monitor:do_check_type(dir, Dir)
+	    catch _:_ ->
                     Reason = {badarg, {dir, Dir}, node()},
-                    local_fallback_error(Master, Reason);
-                AbsDir->
-                    AbsDir
-            end;
+		    throw({error, Reason})
+	    end;
         false when FA#fallback_args.scope =:= global ->
             Reason = {combine_error, global, dir, node()},
-            local_fallback_error(Master, Reason)
+            throw({error, Reason})
     end.
 
 fallback_receiver_loop(Master, R, FA, State) ->
@@ -666,7 +656,7 @@ fallback_receiver_loop(Master, R, FA, State) ->
             Bup = FA#fallback_args.fallback_bup,
             Tmp = FA#fallback_args.fallback_tmp,
             throw_bad_res(ok, file:rename(Tmp, Bup)),
-            catch mnesia_lib:set(active_fallback, true),
+            ?SAFE(mnesia_lib:set(active_fallback, true)),
             ?eval_debug_fun({?MODULE, fallback_receiver_loop, post_swap}, []),
             Master ! {self(), ok},
             fallback_receiver_loop(Master, R, FA, stop);
@@ -697,7 +687,7 @@ throw_bad_res(_Expected, Actual) -> throw({error, Actual}).
 tm_fallback_start(IgnoreFallback) ->
     mnesia_schema:lock_schema(),
     Res = do_fallback_start(fallback_exists(), IgnoreFallback),
-    mnesia_schema: unlock_schema(),
+    mnesia_schema:unlock_schema(),
     case Res of
         ok -> ok;
         {error, Reason} -> exit(Reason)
@@ -715,9 +705,9 @@ do_fallback_start(true, false) ->
     BupFile = fallback_bup(),
     Mod = mnesia_backup,
     LocalTabs = ?ets_new_table(mnesia_local_tables, [set, public, {keypos, 2}]),
-    case catch iterate(Mod, fun restore_tables/4, BupFile, {start, LocalTabs}) of
+    case iterate(Mod, fun restore_tables/4, BupFile, {start, LocalTabs}) of
         {ok, _Res} ->
-            catch dets:close(schema),
+            ?SAFE(dets:close(schema)),
             TmpSchema = mnesia_lib:tab2tmp(schema),
             DatSchema = mnesia_lib:tab2dat(schema),
 	    AllLT  = ?ets_match_object(LocalTabs, '_'),
@@ -733,8 +723,6 @@ do_fallback_start(true, false) ->
                     {error, {"Cannot start from fallback. Rename error.", Reason}}
             end;
         {error, Reason} ->
-            {error, {"Cannot start from fallback", Reason}};
-        {'EXIT', Reason} ->
             {error, {"Cannot start from fallback", Reason}}
     end.
 
@@ -996,10 +984,10 @@ uninstall_fallback_master(ClientPid, FA) ->
     case fallback_to_schema(Bup) of
         {ok, fallback, List} ->
             Cs = mnesia_schema:list2cs(List),
-            case catch get_fallback_nodes(FA, Cs#cstruct.disc_copies) of
+            try get_fallback_nodes(FA, Cs#cstruct.disc_copies) of
                 Ns when is_list(Ns) ->
-                    do_uninstall(ClientPid, Ns, FA);
-                {error, Reason} ->
+                    do_uninstall(ClientPid, Ns, FA)
+	    catch throw:{error, Reason} ->
                     local_fallback_error(ClientPid, Reason)
             end;
         {error, Reason} ->
@@ -1042,13 +1030,13 @@ local_uninstall_fallback(Master, FA) ->
     %% Don't trap exit
 
     register(mnesia_fallback, self()),        % May exit
-    FA2 = check_fallback_dir(Master, FA), % May exit
+    FA2 = check_fallback_dir(Master, FA),  % May exit
     Master ! {self(), started},
 
     receive
         {Master, do_uninstall} ->
             ?eval_debug_fun({?MODULE, uninstall_fallback2, pre_delete}, []),
-            catch mnesia_lib:set(active_fallback, false),
+            ?SAFE(mnesia_lib:set(active_fallback, false)),
             Tmp = FA2#fallback_args.fallback_tmp,
             Bup = FA2#fallback_args.fallback_bup,
             file:delete(Tmp),
@@ -1071,10 +1059,8 @@ rec_uninstall(ClientPid, [Pid | Pids], AccRes) ->
         {Pid, BadRes} ->
             rec_uninstall(ClientPid, Pids, BadRes)
     end;
-rec_uninstall(ClientPid, [], Res) ->
-    ClientPid ! {self(), Res},
-    unlink(ClientPid),
-    exit(normal).
+rec_uninstall(_, [], Res) ->
+    Res.
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %% Backup traversal
@@ -1125,12 +1111,11 @@ do_traverse_backup(ClientPid, Source, SourceMod, Target, TargetMod, Fun, Acc) ->
     Iter =
         if
             TargetMod =/= read_only ->
-                case catch do_apply(TargetMod, open_write, [Target], Target) of
-                    {error, Error} ->
+                try do_apply(TargetMod, open_write, [Target], Target)
+		catch throw:{error, Error} ->
                         unlink(ClientPid),
                         ClientPid ! {iter_done, self(), {error, Error}},
-                        exit(Error);
-                    Else -> Else
+                        exit(Error)
                 end;
             true ->
                 ignore
@@ -1139,16 +1124,16 @@ do_traverse_backup(ClientPid, Source, SourceMod, Target, TargetMod, Fun, Acc) ->
     Res =
         case iterate(SourceMod, fun trav_apply/4, Source, A) of
             {ok, {iter, _, Acc2, _, Iter2}} when TargetMod =/= read_only ->
-                case catch do_apply(TargetMod, commit_write, [Iter2], Iter2) of
-                    {error, Reason} ->
-                        {error, Reason};
-                    _ ->
-                        {ok, Acc2}
+                try
+		    do_apply(TargetMod, commit_write, [Iter2], Iter2),
+		    {ok, Acc2}
+		catch throw:{error, Reason} ->
+                        {error, Reason}
                 end;
             {ok, {iter, _, Acc2, _, _}} ->
                 {ok, Acc2};
             {error, Reason} when TargetMod =/= read_only->
-                catch do_apply(TargetMod, abort_write, [Iter], Iter),
+                ?CATCH(do_apply(TargetMod, abort_write, [Iter], Iter)),
                 {error, {"Backup traversal failed", Reason}};
             {error, Reason} ->
                 {error, {"Backup traversal failed", Reason}}
diff --git a/lib/mnesia/src/mnesia_checkpoint.erl b/lib/mnesia/src/mnesia_checkpoint.erl
index 173e3be2f5..0a3ea8d769 100644
--- a/lib/mnesia/src/mnesia_checkpoint.erl
+++ b/lib/mnesia/src/mnesia_checkpoint.erl
@@ -68,12 +68,12 @@
 -import(mnesia_lib, [add/2, del/2, set/2, unset/1]).
 -import(mnesia_lib, [dbg_out/2]).
 
--record(checkpoint_args, {name = {now(), node()},
+-record(checkpoint_args, {name = {erlang:unique_integer([positive]), node()},
 			  allow_remote = true,
 			  ram_overrides_dump = false,
 			  nodes = [],
 			  node = node(),
-			  now = now(),
+			  now,  %% unused
 			  cookie = ?unique_cookie,
 			  min = [],
 			  max = [],
@@ -128,7 +128,7 @@ tm_enter_pending([], Pending) ->
     Pending;
 tm_enter_pending([Tab | Tabs], Pending) ->
     %% io:format("Add ~p ~p ~p~n",[Tab, Pending, hd(tl(element(2, process_info(self(), current_stacktrace))))]),
-    catch ?ets_insert(Tab, Pending),
+    ?SAFE(?ets_insert(Tab, Pending)),
     tm_enter_pending(Tabs, Pending).
 
 tm_exit_pending(Tid) ->
@@ -427,22 +427,22 @@ check_tables(Cp) ->
 
 arrange_retainers(Cp, Overriders, AllTabs) ->
     R = #retainer{cp_name = Cp#checkpoint_args.name},
-    case catch [R#retainer{tab_name = Tab, 
-			   writers = select_writers(Cp, Tab)}
-		|| Tab <- AllTabs] of
-	{'EXIT', Reason} ->
-	    {error, Reason};
+    try [R#retainer{tab_name = Tab,
+		    writers = select_writers(Cp, Tab)}
+	 || Tab <- AllTabs] of
 	Retainers ->
 	    {ok, Cp#checkpoint_args{ram_overrides_dump = Overriders,
-			       retainers = Retainers,
-			       nodes = writers(Retainers)}}
+				    retainers = Retainers,
+				    nodes = writers(Retainers)}}
+    catch throw:Reason ->
+	    {error, Reason}
     end.
 
 select_writers(Cp, Tab) ->
     case filter_remote(Cp, val({Tab, active_replicas})) of
 	[] ->
-	    exit({"Cannot prepare checkpoint (replica not available)",
-		 [Tab, Cp#checkpoint_args.name]});
+	    throw({"Cannot prepare checkpoint (replica not available)",
+		   [Tab, Cp#checkpoint_args.name]});
 	Writers ->
 	    This = node(),
 	    case {lists:member(Tab, Cp#checkpoint_args.max),
@@ -492,12 +492,12 @@ check_prep([], Name, Nodes, IgnoreNew) ->
 collect_pending(Name, Nodes, IgnoreNew) ->
     case rpc:multicall(Nodes, ?MODULE, call, [Name, collect_pending]) of
 	{Replies, []} ->
-	    case catch ?ets_new_table(mnesia_union, [bag]) of
-		{'EXIT', Reason} -> %% system limit
+	    try
+		UnionTab = ?ets_new_table(mnesia_union, [bag]),
+		compute_union(Replies, Nodes, Name, UnionTab, IgnoreNew)
+	    catch error:Reason -> %% system limit
 		    Msg = "Cannot create an ets table pending union",
-		    {error, {system_limit, Msg, Reason}};
-		UnionTab ->
-		    compute_union(Replies, Nodes, Name, UnionTab, IgnoreNew)
+		    {error, {system_limit, Msg, Reason}}
 	    end;
 	{_, BadNodes} ->
 	    deactivate(Nodes, Name),
@@ -1170,7 +1170,7 @@ iterate(Name, Tab, Fun, Acc, Source, Val) ->
 	    {error, Reason};
 	{ok, Iter, Pid} ->
 	    link(Pid), % We don't want any pending fixtable's
-	    Res = (catch iter(Fun, Acc, Iter)),
+	    Res = ?CATCH(iter(Fun, Acc, Iter)),
 	    unlink(Pid),
 	    call(Name, {iter_end, Iter}),
 	    case Res of
@@ -1246,7 +1246,7 @@ system_code_change(Cp, _Module, _OldVsn, _Extra) ->
 
 val(Var) ->
     case ?catch_val(Var) of
-	{'EXIT', _ReASoN_} -> mnesia_lib:other_val(Var, _ReASoN_); 
-	_VaLuE_ -> _VaLuE_ 
+	{'EXIT', _} -> mnesia_lib:other_val(Var);
+	_VaLuE_ -> _VaLuE_
     end.
 
diff --git a/lib/mnesia/src/mnesia_controller.erl b/lib/mnesia/src/mnesia_controller.erl
index 5a9bae54da..b9d3779e9a 100644
--- a/lib/mnesia/src/mnesia_controller.erl
+++ b/lib/mnesia/src/mnesia_controller.erl
@@ -51,6 +51,7 @@
 	 force_load_table/1,
 	 async_dump_log/1,
 	 sync_dump_log/1,
+	 snapshot_dcd/1,
 	 connect_nodes/1,
          connect_nodes/2,
 	 wait_for_schema_commit_lock/0,
@@ -139,7 +140,8 @@ max_loaders() ->
 -record(block_controller, {owner}).
 
 -record(dump_log, {initiated_by,
-		   opt_reply_to
+		   opt_reply_to,
+		   operation = dump_log
 		  }).
 
 -record(net_load, {table,
@@ -184,7 +186,7 @@ max_loaders() ->
 
 val(Var) ->
     case ?catch_val(Var) of
-	{'EXIT', Reason} -> mnesia_lib:other_val(Var, Reason);
+	{'EXIT', _} -> mnesia_lib:other_val(Var);
 	Value -> Value
     end.
 
@@ -201,6 +203,15 @@ async_dump_log(InitBy) ->
     ?SERVER_NAME ! {async_dump_log, InitBy},
     ok.
 
+snapshot_dcd(Tables) when is_list(Tables) ->
+    case [T || T <- Tables,
+	       mnesia_lib:storage_type_at_node(node(), T) =/= disc_copies] of
+	[] ->
+	    call({snapshot_dcd, Tables});
+	BadTabs ->
+	    {error, {not_disc_copies, BadTabs}}
+    end.
+
 %% Wait for tables to be active
 %% If needed, we will wait for Mnesia to start
 %% If Mnesia stops, we will wait for Mnesia to restart
@@ -230,9 +241,7 @@ do_wait_for_tables(Tabs, Timeout) ->
     end.
 
 reply_wait(Tabs) ->
-    case catch mnesia_lib:active_tables() of
-	{'EXIT', _} ->
-	    {error, {node_not_running, node()}};
+    try mnesia_lib:active_tables() of
 	Active when is_list(Active) ->
 	    case Tabs -- Active of
 		[] ->
@@ -240,6 +249,7 @@ reply_wait(Tabs) ->
 		BadTabs ->
 		    {timeout, BadTabs}
 	    end
+    catch exit:_ -> {error, {node_not_running, node()}}
     end.
 
 wait_for_tables_init(From, Tabs) ->
@@ -250,13 +260,12 @@ wait_for_tables_init(From, Tabs) ->
     exit(normal).
 
 wait_for_init(From, Tabs, Init) ->
-    case catch link(Init) of
-	{'EXIT', _} ->
-	    %% Mnesia is not started
-	    {error, {node_not_running, node()}};
+    try link(Init) of
 	true when is_pid(Init) ->
 	    cast({sync_tabs, Tabs, self()}),
 	    rec_tabs(Tabs, Tabs, From, Init)
+    catch error:_ -> %% Mnesia is not started
+	    {error, {node_not_running, node()}}
     end.
 
 sync_reply(Waiter, Tab) ->
@@ -332,7 +341,7 @@ get_network_copy(Tab, Cs) ->
     %% might be solved by using monitor in subscr instead.
     process_flag(trap_exit, true),
     Load = load_table_fun(Work),
-    Res = (catch Load()),
+    Res = ?CATCH(Load()),
     process_flag(trap_exit, false),
     call({del_other, self()}),
     case Res of
@@ -581,11 +590,8 @@ call(Msg) ->
     end.
 
 remote_call(Node, Func, Args) ->
-    case catch gen_server:call({?MODULE, Node}, {Func, Args, self()}, infinity) of
-	{'EXIT', Error} ->
-	    {error, Error};
-	Else ->
-	    Else
+    try gen_server:call({?MODULE, Node}, {Func, Args, self()}, infinity)
+    catch exit:Error -> {error, Error}
     end.
 
 multicall(Nodes, Msg) ->
@@ -646,6 +652,15 @@ handle_call({sync_dump_log, InitBy}, From, State) ->
     State2 = add_worker(Worker, State),
     noreply(State2);
 
+handle_call({snapshot_dcd, Tables}, From, State) ->
+    Worker = #dump_log{initiated_by = user,
+		       opt_reply_to = From,
+		       operation = fun() ->
+					   mnesia_dumper:snapshot_dcd(Tables)
+				   end},
+    State2 = add_worker(Worker, State),
+    noreply(State2);
+
 handle_call(wait_for_schema_commit_lock, From, State) ->
     Worker = #schema_commit_lock{owner = From},
     State2 = add_worker(Worker, State),
@@ -657,7 +672,7 @@ handle_call(block_controller, From, State) ->
     noreply(State2);
 
 handle_call({update,Fun}, From, State) ->
-    Res = (catch Fun()),
+    Res = ?CATCH(Fun()),
     reply(From, Res),
     noreply(State);
 
@@ -1236,7 +1251,7 @@ handle_info(#sender_done{worker_pid=Pid, worker_res=Res}, State)  ->
     end;
 
 handle_info({'EXIT', Pid, R}, State) when Pid == State#state.supervisor ->
-    catch set(mnesia_status, stopping),
+    ?SAFE(set(mnesia_status, stopping)),
     case State#state.dumper_pid of
 	undefined ->
 	    dbg_out("~p was ~p~n", [?SERVER_NAME, R]),
@@ -1460,9 +1475,9 @@ orphan_tables([], _, _, LocalOrphans, RemoteMasters) ->
 
 node_has_tabs([Tab | Tabs], Node, State) when Node /= node() ->
     State2 =
-	case catch update_whereabouts(Tab, Node, State) of
-	    State1 = #state{} -> State1;
-	    {'EXIT', R} ->  %% Tab was just deleted?
+	try update_whereabouts(Tab, Node, State) of
+	    State1 = #state{} -> State1
+	catch exit:R -> %% Tab was just deleted?
 		case ?catch_val({Tab, cstruct}) of
 		    {'EXIT', _} -> State; % yes
 		    _ ->  erlang:error(R)
@@ -1748,22 +1763,17 @@ change_table_majority(Cs) ->
 
 update_where_to_wlock(Tab) ->
     WNodes = val({Tab, where_to_write}),
-    Majority = case catch val({Tab, majority}) of
-		   true -> true;
-		   _    -> false
-	       end,
+    Majority = ?catch_val({Tab, majority}) == true,
     set({Tab, where_to_wlock}, {WNodes, Majority}).
 
 %% node To now has tab loaded, but this must be undone
 %% This code is rpc:call'ed from the tab_copier process
 %% when it has *not* released it's table lock
 unannounce_add_table_copy(Tab, To) ->
-    catch del_active_replica(Tab, To),
-    case catch val({Tab , where_to_read}) of
-	To ->
-	    mnesia_lib:set_remote_where_to_read(Tab);
-	_ ->
-	    ignore
+    ?SAFE(del_active_replica(Tab, To)),
+    try To = val({Tab , where_to_read}),
+	 mnesia_lib:set_remote_where_to_read(Tab)
+    catch _:_ -> ignore
     end.
 
 user_sync_tab(Tab) ->
@@ -2089,7 +2099,12 @@ start_remote_sender(Node, Tab, Receiver, Storage) ->
 
 dump_and_reply(ReplyTo, Worker) ->
     %% No trap_exit, die intentionally instead
-    Res = mnesia_dumper:opt_dump_log(Worker#dump_log.initiated_by),
+    Res = case Worker#dump_log.operation of
+	      dump_log ->
+		  mnesia_dumper:opt_dump_log(Worker#dump_log.initiated_by);
+	      F when is_function(F, 0) ->
+		  F()
+	  end,
     ReplyTo ! #dumper_done{worker_pid = self(),
 			   worker_res = Res},
     unlink(ReplyTo),
diff --git a/lib/mnesia/src/mnesia_dumper.erl b/lib/mnesia/src/mnesia_dumper.erl
index 14665797a0..693f20dbc2 100644
--- a/lib/mnesia/src/mnesia_dumper.erl
+++ b/lib/mnesia/src/mnesia_dumper.erl
@@ -34,11 +34,13 @@
 -export([
 	 get_log_writes/0,
 	 incr_log_writes/0,
+         needs_dump_ets/1,
 	 raw_dump_table/2,
 	 raw_named_dump_table/2,
 	 start_regulator/0,
 	 opt_dump_log/1,
-	 update/3
+	 update/3,
+	 snapshot_dcd/1
 	]).
 
  %% Internal stuff
@@ -99,6 +101,19 @@ opt_dump_log(InitBy) ->
 	  end,
     perform_dump(InitBy, Reg).
 
+snapshot_dcd(Tables) ->
+    lists:foreach(
+      fun(Tab) ->
+	      case mnesia_lib:storage_type_at_node(node(), Tab) of
+		  disc_copies ->
+		      mnesia_log:ets2dcd(Tab);
+		  _ ->
+		      %% Storage type was checked before queueing the op, though
+		      skip
+	      end
+      end, Tables),
+    dumped.
+
 %% Scan for decisions
 perform_dump(InitBy, Regulator) when InitBy == scan_decisions ->
     ?eval_debug_fun({?MODULE, perform_dump}, [InitBy]),
@@ -122,7 +137,7 @@ perform_dump(InitBy, Regulator) ->
 	    U = mnesia_monitor:get_env(dump_log_update_in_place),
 	    Cont = mnesia_log:init_log_dump(),
 	    mnesia_recover:sync(),
-	    case catch do_perform_dump(Cont, U, InitBy, Regulator, undefined) of
+	    try do_perform_dump(Cont, U, InitBy, Regulator, undefined) of
 		ok ->
 		    ?eval_debug_fun({?MODULE, post_dump}, [InitBy]),
 		    case mnesia_monitor:use_dir() of
@@ -133,17 +148,15 @@ perform_dump(InitBy, Regulator) ->
 		    end,
 		    mnesia_recover:allow_garb(),
 		    %% And now to the crucial point...
-		    mnesia_log:confirm_log_dump(Diff);
-		{error, Reason} ->
-		    {error, Reason};
- 		{'EXIT', {Desc, Reason}} ->
+		    mnesia_log:confirm_log_dump(Diff)
+	    catch exit:Reason when Reason =/= fatal ->
 		    case mnesia_monitor:get_env(auto_repair) of
 			true ->
-			    mnesia_lib:important(Desc, Reason),
+			    mnesia_lib:important(error, Reason),
 			    %% Ignore rest of the log
 			    mnesia_log:confirm_log_dump(Diff);
 			false ->
-			    fatal(Desc, Reason)
+			    fatal(error, Reason)
 		    end
 	    end;
 	{error, Reason} ->
@@ -161,24 +174,25 @@ scan_decisions(Fname, InitBy, Regulator) ->
 	    mnesia_log:open_log(Name, Header, Fname, Exists,
 				mnesia_monitor:get_env(auto_repair), read_only),
 	    Cont = start,
-	    Res = (catch do_perform_dump(Cont, false, InitBy, Regulator, undefined)),
-	    mnesia_log:close_log(Name),
-	    case Res of
-		ok -> ok;
-		{'EXIT', Reason} -> {error, Reason}
+	    try
+		do_perform_dump(Cont, false, InitBy, Regulator, undefined)
+	    catch exit:Reason when Reason =/= fatal ->
+		    {error, Reason}
+	    after mnesia_log:close_log(Name)
 	    end
     end.
 
 do_perform_dump(Cont, InPlace, InitBy, Regulator, OldVersion) ->
     case mnesia_log:chunk_log(Cont) of
 	{C2, Recs} ->
-	    case catch insert_recs(Recs, InPlace, InitBy, Regulator, OldVersion) of
-		{'EXIT', R} ->
-		    Reason = {"Transaction log dump error: ~p~n", [R]},
-		    close_files(InPlace, {error, Reason}, InitBy),
-		    exit(Reason);
+	    try insert_recs(Recs, InPlace, InitBy, Regulator, OldVersion) of
 		Version ->
 		    do_perform_dump(C2, InPlace, InitBy, Regulator, Version)
+	    catch _:R when R =/= fatal ->
+		    ST = erlang:get_stacktrace(),
+		    Reason = {"Transaction log dump error: ~p~n", [{R, ST}]},
+		    close_files(InPlace, {error, Reason}, InitBy),
+		    exit(Reason)
 	    end;
 	eof ->
 	    close_files(InPlace, ok, InitBy),
@@ -288,17 +302,16 @@ perform_update(Tid, SchemaOps, _DumperMode, _UseDir) ->
 
     InitBy = fast_schema_update,
     InPlace = mnesia_monitor:get_env(dump_log_update_in_place),
-    ?eval_debug_fun({?MODULE, dump_schema_op}, [InitBy]),
-    case catch insert_ops(Tid, schema_ops, SchemaOps, InPlace, InitBy,
-			  mnesia_log:version()) of
-	{'EXIT', Reason} ->
-	    Error = {error, {"Schema update error", Reason}},
+    try insert_ops(Tid, schema_ops, SchemaOps, InPlace, InitBy,
+		   mnesia_log:version()),
+	 ?eval_debug_fun({?MODULE, post_dump}, [InitBy]),
+	 close_files(InPlace, ok, InitBy),
+	 ok
+    catch _:Reason when Reason =/= fatal ->
+	    ST = erlang:get_stacktrace(),
+	    Error = {error, {"Schema update error", {Reason, ST}}},
 	    close_files(InPlace, Error, InitBy),
-            fatal("Schema update error ~p ~p", [Reason, SchemaOps]);
-	_ ->
-	    ?eval_debug_fun({?MODULE, post_dump}, [InitBy]),
-	    close_files(InPlace, ok, InitBy),
-	    ok
+            fatal("Schema update error ~p ~p", [{Reason,ST}, SchemaOps])
     end.
 
 insert_ops(_Tid, _Storage, [], _InPlace, _InitBy, _) ->    ok;
@@ -347,13 +360,11 @@ dets_insert(Op,Tab,Key,Val) ->
 	    case dets_incr_counter(Tab,Key) of
 		true ->
 		    {RecName, Incr} = Val,
-		    case catch dets:update_counter(Tab, Key, Incr) of
-			CounterVal when is_integer(CounterVal) ->
-			    ok;
-			_ when Incr < 0 ->
+		    try _ = dets:update_counter(Tab, Key, Incr)
+		    catch error:_ when Incr < 0 ->
 			    Zero = {RecName, Key, 0},
 			    ok = dets:insert(Tab, Zero);
-			_ ->
+			  error:_ ->
 			    Init = {RecName, Key, Incr},
 			    ok = dets:insert(Tab, Init)
 		    end;
@@ -771,7 +782,7 @@ insert_op(Tid, _, {op, clear_table, TabDef}, InPlace, InitBy) ->
 	    end,
 	    %% Need to catch this, it crashes on ram_copies if
 	    %% the op comes before table is loaded at startup.
-	    catch insert(Tid, Storage, Tab, '_', Oid, clear_table, InPlace, InitBy)
+	    ?CATCH(insert(Tid, Storage, Tab, '_', Oid, clear_table, InPlace, InitBy))
     end;
 
 insert_op(Tid, _, {op, merge_schema, TabDef}, InPlace, InitBy) ->
@@ -981,28 +992,10 @@ open_files(_Tab, _Storage, _UpdateInPlace, _InitBy) ->
     false.
 
 open_disc_copies(Tab, InitBy) ->
-    DclF = mnesia_lib:tab2dcl(Tab),
-    DumpEts =
-	case file:read_file_info(DclF) of
-	    {error, enoent} ->
-		false;
-	    {ok, DclInfo} ->
-		DcdF =  mnesia_lib:tab2dcd(Tab),
-		case file:read_file_info(DcdF) of
-		    {error, Reason} ->
-			mnesia_lib:dbg_out("File ~p info_error ~p ~n",
-					   [DcdF, Reason]),
-			true;
-		    {ok, DcdInfo} ->
-			Mul = case ?catch_val(dc_dump_limit) of
-				  {'EXIT', _} -> ?DumpToEtsMultiplier;
-				  Val -> Val
-			      end,
-			DcdInfo#file_info.size =< (DclInfo#file_info.size * Mul)
-		end
-	end,
+    DumpEts = needs_dump_ets(Tab),
     if
 	DumpEts == false; InitBy == startup ->
+            DclF = mnesia_lib:tab2dcl(Tab),
 	    mnesia_log:open_log({?MODULE,Tab},
 				mnesia_log:dcl_log_header(),
 				DclF,
@@ -1017,6 +1010,27 @@ open_disc_copies(Tab, InitBy) ->
 	    false
     end.
 
+needs_dump_ets(Tab) ->
+    DclF = mnesia_lib:tab2dcl(Tab),
+    case file:read_file_info(DclF) of
+        {error, enoent} ->
+            false;
+        {ok, DclInfo} ->
+            DcdF =  mnesia_lib:tab2dcd(Tab),
+            case file:read_file_info(DcdF) of
+                {error, Reason} ->
+                    mnesia_lib:dbg_out("File ~p info_error ~p ~n",
+                                       [DcdF, Reason]),
+                    true;
+                {ok, DcdInfo} ->
+                    Mul = case ?catch_val(dc_dump_limit) of
+                              {'EXIT', _} -> ?DumpToEtsMultiplier;
+                              Val -> Val
+                          end,
+                    DcdInfo#file_info.size =< (DclInfo#file_info.size * Mul)
+            end
+    end.
+
 %% Always opens the dcl file for writing overriding already_dumped
 %% mechanismen, used for schema transactions.
 open_dcl(Tab) ->
@@ -1042,14 +1056,13 @@ prepare_open(Tab, UpdateInPlace) ->
 	    Dat;
 	false ->
 	    Tmp = mnesia_lib:tab2tmp(Tab),
-	    case catch mnesia_lib:copy_file(Dat, Tmp) of
-		ok ->
-		    Tmp;
-		Error ->
+	    try ok = mnesia_lib:copy_file(Dat, Tmp)
+	    catch error:Error ->
 		    fatal("Cannot copy dets file ~p to ~p: ~p~n",
 			  [Dat, Tmp, Error])
-	    end
-	end.
+	    end,
+	    Tmp
+    end.
 
 del_opened_tab(Tab) ->
     erase({?MODULE, Tab}).
@@ -1171,18 +1184,16 @@ raw_named_dump_table(Tab, Ftype) ->
 		    Storage = ram_copies,
 		    mnesia_lib:db_fixtable(Storage, Tab, true),
 
-		    case catch raw_dump_table(TabRef, Tab) of
-			{'EXIT', Reason} ->
-			    mnesia_lib:db_fixtable(Storage, Tab, false),
-			    mnesia_lib:dets_sync_close(Tab),
-			    file:delete(TmpFname),
-			    mnesia_lib:unlock_table(Tab),
-			    exit({"Dump of table to disc failed", Reason});
-			ok ->
-			    mnesia_lib:db_fixtable(Storage, Tab, false),
-			    mnesia_lib:dets_sync_close(Tab),
-			    mnesia_lib:unlock_table(Tab),
-			    ok = file:rename(TmpFname, Fname)
+		    try
+			ok = raw_dump_table(TabRef, Tab),
+			ok = file:rename(TmpFname, Fname)
+		    catch _:Reason ->
+			    ?SAFE(file:delete(TmpFname)),
+			    exit({"Dump of table to disc failed", Reason})
+		    after
+			mnesia_lib:db_fixtable(Storage, Tab, false),
+			mnesia_lib:dets_sync_close(Tab),
+			mnesia_lib:unlock_table(Tab)
 		    end;
 		{error, Reason} ->
 		    mnesia_lib:unlock_table(Tab),
@@ -1248,6 +1259,6 @@ regulate(RegulatorPid) ->
 
 val(Var) ->
     case ?catch_val(Var) of
-	{'EXIT', Reason} -> mnesia_lib:other_val(Var, Reason);
+	{'EXIT', _} -> mnesia_lib:other_val(Var);
 	Value -> Value
     end.
diff --git a/lib/mnesia/src/mnesia_event.erl b/lib/mnesia/src/mnesia_event.erl
index 67ec9d7399..8a4be88e9a 100644
--- a/lib/mnesia/src/mnesia_event.erl
+++ b/lib/mnesia/src/mnesia_event.erl
@@ -235,8 +235,7 @@ report_fatal(Format, Args, BinaryCore, CoreDumped) ->
     end.
 
 core_file(CoreDir,BinaryCore,Format,Args) ->
-    %% Integers = tuple_to_list(date()) ++ tuple_to_list(time()),
-    Integers = tuple_to_list(now()),
+    Integers = tuple_to_list(erlang:timestamp()),
     Fun = fun(I) when I < 10 -> ["_0",I];
 	     (I) -> ["_",I]
 	  end,
diff --git a/lib/mnesia/src/mnesia_frag.erl b/lib/mnesia/src/mnesia_frag.erl
index 66fc20913c..6036ac4e8f 100644
--- a/lib/mnesia/src/mnesia_frag.erl
+++ b/lib/mnesia/src/mnesia_frag.erl
@@ -406,10 +406,11 @@ verify_numbers(FH,MatchSpec) ->
     VerifyFun = fun(F) when is_integer(F), F >= 1, F =< N -> false;
 		   (_F) -> true
 		end,
-    case catch lists:filter(VerifyFun, FragNumbers) of
-	[] ->
-	    FragNumbers;
-	BadFrags ->
+    try
+	Frags = lists:filter(VerifyFun, FragNumbers),
+	Frags == [] orelse error(Frags),
+	FragNumbers
+    catch error:BadFrags ->
 	    mnesia:abort({"match_spec_to_frag_numbers: Fragment numbers out of range",
 			  BadFrags, {range, 1, N}})
     end.
@@ -437,7 +438,7 @@ remote_select(ReplyTo, Ref, NameNodes, MatchSpec) ->
 do_remote_select(ReplyTo, Ref, [{Name, Node} | NameNodes], MatchSpec) ->
     if
 	Node == node() ->
-	    Res = (catch {ok, mnesia:dirty_select(Name, MatchSpec)}),
+	    Res = ?CATCH({ok, mnesia:dirty_select(Name, MatchSpec)}),
 	    ReplyTo ! {remote_select, Ref, Node, Res},
 	    do_remote_select(ReplyTo, Ref, NameNodes, MatchSpec);
 	true ->
@@ -886,17 +887,19 @@ adjust_before_split(FH) ->
 		HashMod:add_frag(HashState)
 	end,
     N = FH#frag_state.n_fragments + 1,
-    FromFrags2 = (catch lists:sort(FromFrags)),
-    UnionFrags = (catch lists:merge(FromFrags2, lists:sort(AdditionalWriteFrags))),
     VerifyFun = fun(F) when is_integer(F), F >= 1, F =< N -> false;
 		   (_F) -> true
 		end,
-    case catch lists:filter(VerifyFun, UnionFrags) of
-	[] ->
-	    FH2 = FH#frag_state{n_fragments = N,
-				hash_state  = HashState2},
-	    {FH2, FromFrags2, UnionFrags};
-	BadFrags ->
+    try
+	FromFrags2 = lists:sort(FromFrags),
+	UnionFrags = lists:merge(FromFrags2, lists:sort(AdditionalWriteFrags)),
+
+	Frags = lists:filter(VerifyFun, UnionFrags),
+	Frags == [] orelse error(Frags),
+	FH2 = FH#frag_state{n_fragments = N,
+			    hash_state  = HashState2},
+	{FH2, FromFrags2, UnionFrags}
+    catch error:BadFrags ->
 	    mnesia:abort({"add_frag: Fragment numbers out of range",
 			  BadFrags, {range, 1, N}})
     end.
@@ -981,22 +984,24 @@ adjust_before_merge(FH) ->
 		HashMod:del_frag(HashState)
 	end,
     N = FH#frag_state.n_fragments,
-    FromFrags2 = (catch lists:sort(FromFrags)),
-    UnionFrags = (catch lists:merge(FromFrags2, lists:sort(AdditionalWriteFrags))),
     VerifyFun = fun(F) when is_integer(F), F >= 1, F =< N -> false;
 		   (_F) -> true
 		end,
-    case catch lists:filter(VerifyFun, UnionFrags) of
-	[] ->
-	    case lists:member(N, FromFrags2) of
-		true ->
-		    FH2 = FH#frag_state{n_fragments = N - 1,
-					hash_state  = HashState2},
-		    {FH2, FromFrags2, UnionFrags};
+    try
+	FromFrags2 = lists:sort(FromFrags),
+	UnionFrags = lists:merge(FromFrags2, lists:sort(AdditionalWriteFrags)),
+
+	Frags = lists:filter(VerifyFun, UnionFrags),
+	[] == Frags orelse error(Frags),
+	case lists:member(N, FromFrags2) of
+	    true ->
+		FH2 = FH#frag_state{n_fragments = N - 1,
+				    hash_state  = HashState2},
+		{FH2, FromFrags2, UnionFrags};
 		false ->
-		    mnesia:abort({"del_frag: Last fragment number not included", N})
-	    end;
-	BadFrags ->
+		mnesia:abort({"del_frag: Last fragment number not included", N})
+	end
+    catch error:BadFrags ->
 	    mnesia:abort({"del_frag: Fragment numbers out of range",
 			  BadFrags, {range, 1, N}})
     end.
@@ -1141,8 +1146,8 @@ remove_node(Node, Cs) ->
 
 val(Var) ->
     case ?catch_val(Var) of
-	{'EXIT', Reason} -> mnesia_lib:other_val(Var, Reason); 
-	Value -> Value 
+	{'EXIT', _} -> mnesia_lib:other_val(Var);
+	Value -> Value
     end.
 
 set_frag_hash(Tab, Props) ->
diff --git a/lib/mnesia/src/mnesia_index.erl b/lib/mnesia/src/mnesia_index.erl
index 87cb58dae1..6a7c964fce 100644
--- a/lib/mnesia/src/mnesia_index.erl
+++ b/lib/mnesia/src/mnesia_index.erl
@@ -45,21 +45,11 @@
 	 del_transient/3,
 	 del_index_table/3]).
 
--import(mnesia_lib, [verbose/2]).
+-import(mnesia_lib, [val/1, verbose/2]).
 -include("mnesia.hrl").
 
 -record(index, {setorbag, pos_list}).
 
-val(Var) ->
-    case ?catch_val(Var) of
-	{'EXIT', _ReASoN_} ->
-            case mnesia_lib:other_val(Var) of
-                error -> mnesia_lib:pr_other(Var, _ReASoN_);
-                Val -> Val
-            end;
-	_VaLuE_ -> _VaLuE_ 
-    end.
-
 %% read an object list throuh its index table
 %% we assume that table Tab has index on attribute number Pos
 
diff --git a/lib/mnesia/src/mnesia_late_loader.erl b/lib/mnesia/src/mnesia_late_loader.erl
index d09de3ca66..9a113c6306 100644
--- a/lib/mnesia/src/mnesia_late_loader.erl
+++ b/lib/mnesia/src/mnesia_late_loader.erl
@@ -36,17 +36,19 @@
 
 -define(SERVER_NAME, ?MODULE).
 
+-include("mnesia.hrl").
+
 -record(state, {supervisor}).
 
 async_late_disc_load(_, [], _) -> ok;
 async_late_disc_load(Node, Tabs, Reason) ->
     Msg = {async_late_disc_load, Tabs, Reason},
-    catch ({?SERVER_NAME, Node} ! {self(), Msg}).
+    ?SAFE({?SERVER_NAME, Node} ! {self(), Msg}).
 
 maybe_async_late_disc_load(_, [], _) -> ok;
 maybe_async_late_disc_load(Node, Tabs, Reason) ->
     Msg = {maybe_async_late_disc_load, Tabs, Reason},
-    catch ({?SERVER_NAME, Node} ! {self(), Msg}).
+    ?SAFE({?SERVER_NAME, Node} ! {self(), Msg}).
 
 start() ->
     mnesia_monitor:start_proc(?SERVER_NAME, ?MODULE, init, [self()]).
diff --git a/lib/mnesia/src/mnesia_lib.erl b/lib/mnesia/src/mnesia_lib.erl
index a32c69c59e..fc7362a31d 100644
--- a/lib/mnesia/src/mnesia_lib.erl
+++ b/lib/mnesia/src/mnesia_lib.erl
@@ -114,9 +114,7 @@
 	 lock_table/1,
 	 mkcore/1,
 	 not_active_here/1,
-	 other_val/2,
          other_val/1,
-         pr_other/2,
          overload_read/0,
          overload_read/1,
          overload_set/2,
@@ -380,8 +378,8 @@ search_key(_Key, []) ->
 
 val(Var) ->
     case ?catch_val(Var) of
-	{'EXIT', _ReASoN_} -> mnesia_lib:other_val(Var, _ReASoN_); 
-	_VaLuE_ -> _VaLuE_ 
+	{'EXIT', _} -> other_val(Var);
+	_VaLuE_ -> _VaLuE_
     end.
 
 set(Var, Val) ->
@@ -390,13 +388,13 @@ set(Var, Val) ->
 unset(Var) ->
     ?ets_delete(mnesia_gvar, Var).
 
-other_val(Var, Other) ->
-    case other_val(Var) of
-        error -> pr_other(Var, Other);
+other_val(Var) ->
+    case other_val_1(Var) of
+        error -> pr_other(Var);
         Val -> Val
     end.
 
-other_val(Var) ->
+other_val_1(Var) ->
     case Var of
 	{_, where_to_read} -> nowhere;
 	{_, where_to_write} -> [];
@@ -404,21 +402,16 @@ other_val(Var) ->
 	_ -> error
     end.
 
-pr_other(Var, Other) ->
-    Why = 
+pr_other(Var) ->
+    Why =
 	case is_running() of
 	    no -> {node_not_running, node()};
 	    _ -> {no_exists, Var}
 	end,
-    verbose("~p (~p) val(mnesia_gvar, ~w) -> ~p ~p ~n",
+    verbose("~p (~p) val(mnesia_gvar, ~w) -> ~p ~n",
 	    [self(), process_info(self(), registered_name),
-	     Var, Other, Why]),
-    case Other of
-	{badarg, [{ets, lookup_element, _, _}|_]} ->
-	    exit(Why);
-	_ ->
-	    erlang:error(Why)
-    end.
+	     Var, Why]),
+    mnesia:abort(Why).
 
 %% Some functions for list valued variables
 add(Var, Val) ->
@@ -905,7 +898,7 @@ dirty_rpc_error_tag(Reason) ->
     end.
 
 fatal(Format, Args) ->
-    catch set(mnesia_status, stopping),
+    ?SAFE(catch set(mnesia_status, stopping)),
     Core = mkcore({crashinfo, {Format, Args}}),
     report_fatal(Format, Args, Core),
     timer:sleep(10000), % Enough to write the core dump to disc?
@@ -917,7 +910,7 @@ report_fatal(Format, Args) ->
 
 report_fatal(Format, Args, Core) ->
     report_system_event({mnesia_fatal, Format, Args, Core}),
-    catch exit(whereis(mnesia_monitor), fatal).
+    ?SAFE(exit(whereis(mnesia_monitor), fatal)).
 
 %% We sleep longer and longer the more we try
 %% Made some testing and came up with the following constants
@@ -930,8 +923,9 @@ random_time(Retries, _Counter0) ->
     
     case get(random_seed) of
 	undefined ->
-	    {X, Y, Z} = erlang:now(), %% time()
-	    _ = random:seed(X, Y, Z),
+	    _ = random:seed(erlang:unique_integer(),
+			    erlang:monotonic_time(),
+			    erlang:unique_integer()),
 	    Time = Dup + random:uniform(MaxIntv),
 	    %%	    dbg_out("---random_test rs ~w max ~w val ~w---~n", [Retries, MaxIntv, Time]),
 	    Time;
@@ -1013,7 +1007,7 @@ dbg_out(Format, Args) ->
 
 %% Keep the last 10 debug print outs
 save(DbgInfo) ->
-    catch save2(DbgInfo).
+    ?SAFE(save2(DbgInfo)).
 
 save2(DbgInfo) ->
     Key = {'$$$_report', current_pos},
@@ -1089,35 +1083,29 @@ db_match_object(Tab, Pat) ->
     db_match_object(val({Tab, storage_type}), Tab, Pat).
 db_match_object(Storage, Tab, Pat) ->
     db_fixtable(Storage, Tab, true),
-    Res = catch_match_object(Storage, Tab, Pat),
-    db_fixtable(Storage, Tab, false),
-    case Res of
-	{'EXIT', Reason} -> exit(Reason);
-	_ -> Res
+    try
+	case Storage of
+	    disc_only_copies -> dets:match_object(Tab, Pat);
+	    _ -> ets:match_object(Tab, Pat)
+	end
+    after
+	db_fixtable(Storage, Tab, false)
     end.
 
-catch_match_object(disc_only_copies, Tab, Pat) ->
-    catch dets:match_object(Tab, Pat);
-catch_match_object(_, Tab, Pat) ->
-    catch ets:match_object(Tab, Pat).
-
 db_select(Tab, Pat) ->
     db_select(val({Tab, storage_type}), Tab, Pat).
 
 db_select(Storage, Tab, Pat) ->
     db_fixtable(Storage, Tab, true),
-    Res = catch_select(Storage, Tab, Pat),
-    db_fixtable(Storage, Tab, false),
-    case Res of
-	{'EXIT', Reason} -> exit(Reason);
-	_ -> Res
+    try
+	case Storage of
+	    disc_only_copies -> dets:select(Tab, Pat);
+	    _ -> ets:select(Tab, Pat)
+	end
+    after
+	db_fixtable(Storage, Tab, false)
     end.
 
-catch_select(disc_only_copies, Tab, Pat) ->
-    catch dets:select(Tab, Pat);
-catch_select(_, Tab, Pat) ->
-    catch ets:select(Tab, Pat).
-
 db_select_init(disc_only_copies, Tab, Pat, Limit) ->
     dets:select(Tab, Pat, Limit);
 db_select_init(_, Tab, Pat, Limit) ->
@@ -1261,7 +1249,7 @@ dets_sync_open(Tab, Args) ->
     end.
 
 dets_sync_close(Tab) ->
-    catch dets:close(Tab),
+    ?SAFE(dets:close(Tab)),
     unlock_table(Tab),
     ok.
 
@@ -1297,7 +1285,7 @@ readable_indecies(Tab) ->
 
 scratch_debug_fun() ->
     dbg_out("scratch_debug_fun(): ~p~n", [?DEBUG_TAB]),
-    (catch ?ets_delete_table(?DEBUG_TAB)),
+    ?SAFE(?ets_delete_table(?DEBUG_TAB)),
     ?ets_new_table(?DEBUG_TAB, [set, public, named_table, {keypos, 2}]).
 
 activate_debug_fun(FunId, Fun, InitialContext, File, Line) ->
@@ -1310,43 +1298,45 @@ activate_debug_fun(FunId, Fun, InitialContext, File, Line) ->
     update_debug_info(Info).
 
 update_debug_info(Info) ->
-    case catch ?ets_insert(?DEBUG_TAB, Info) of
-	{'EXIT', _} ->
+    try ?ets_insert(?DEBUG_TAB, Info),
+	 ok
+    catch error:_ ->
 	    scratch_debug_fun(),
-	    ?ets_insert(?DEBUG_TAB, Info);
-	_ ->
-	    ok
+	    ?ets_insert(?DEBUG_TAB, Info)
     end,
     dbg_out("update_debug_info(~p)~n", [Info]),
     ok.
 
 deactivate_debug_fun(FunId, _File, _Line) ->
-    catch ?ets_delete(?DEBUG_TAB, FunId),
+    ?SAFE(?ets_delete(?DEBUG_TAB, FunId)),
     ok.
 
 eval_debug_fun(FunId, EvalContext, EvalFile, EvalLine) ->
-    case catch ?ets_lookup(?DEBUG_TAB, FunId) of
-	[] ->
-	    ok;
-	[Info] ->
-	    OldContext = Info#debug_info.context,
-	    dbg_out("~s(~p): ~w "
-		    "activated in ~s(~p)~n  "
-		    "eval_debug_fun(~w, ~w)~n",
-		    [filename:basename(EvalFile), EvalLine, Info#debug_info.id,
-		     filename:basename(Info#debug_info.file), Info#debug_info.line,
-		     OldContext, EvalContext]),
-	    Fun = Info#debug_info.function,
-	    NewContext = Fun(OldContext, EvalContext),
-	    
-	    case catch ?ets_lookup(?DEBUG_TAB, FunId) of
-		[Info] when NewContext /= OldContext ->
-		    NewInfo = Info#debug_info{context = NewContext},
-		    update_debug_info(NewInfo);
-		_ ->
-		    ok
-	    end;
-	{'EXIT', _} -> ok    
+    try 
+	case ?ets_lookup(?DEBUG_TAB, FunId) of
+	    [] ->
+		ok;
+	    [Info] ->
+		OldContext = Info#debug_info.context,
+		dbg_out("~s(~p): ~w "
+			"activated in ~s(~p)~n  "
+			"eval_debug_fun(~w, ~w)~n",
+			[filename:basename(EvalFile), EvalLine, Info#debug_info.id,
+			 filename:basename(Info#debug_info.file), Info#debug_info.line,
+			 OldContext, EvalContext]),
+		Fun = Info#debug_info.function,
+		NewContext = Fun(OldContext, EvalContext),
+
+		case ?ets_lookup(?DEBUG_TAB, FunId) of
+		    [Info] when NewContext /= OldContext ->
+			NewInfo = Info#debug_info{context = NewContext},
+			update_debug_info(NewInfo);
+		    _ ->
+			ok
+		end
+	end
+    catch error ->
+	    ok
     end.
 	
 -ifdef(debug).
diff --git a/lib/mnesia/src/mnesia_loader.erl b/lib/mnesia/src/mnesia_loader.erl
index 530317bcdd..65ea743fd3 100644
--- a/lib/mnesia/src/mnesia_loader.erl
+++ b/lib/mnesia/src/mnesia_loader.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1998-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1998-2014. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -35,7 +35,7 @@
 
 val(Var) ->
     case ?catch_val(Var) of
-	{'EXIT', Reason} -> mnesia_lib:other_val(Var, Reason);
+	{'EXIT', _} -> mnesia_lib:other_val(Var);
 	Value -> Value
     end.
 
@@ -69,9 +69,10 @@ do_get_disc_copy2(Tab, Reason, Storage, Type) when Storage == disc_copies ->
 	    ignore;
 	_ ->
 	    mnesia_monitor:mktab(Tab, Args),
-	    Count = mnesia_log:dcd2ets(Tab, Repair),
-	    case ets:info(Tab, size) of
-		X when X < Count * 4 ->
+	    _Count = mnesia_log:dcd2ets(Tab, Repair),
+	    case mnesia_monitor:get_env(dump_disc_copies_at_startup)
+		andalso mnesia_dumper:needs_dump_ets(Tab) of
+		true ->
 		    ok = mnesia_log:ets2dcd(Tab);
 		_ ->
 		    ignore
@@ -331,7 +332,7 @@ wait_on_load_complete(Pid) ->
 	{Pid, Res} ->
 	    Res;
 	{'EXIT', Pid, Reason} ->
-	    exit(Reason);
+	    error(Reason);
 	Else ->
 	    Pid ! Else,
 	    wait_on_load_complete(Pid)
@@ -441,18 +442,18 @@ init_table(Tab, disc_only_copies, Fun, DetsInfo,Sender) ->
     ErtsVer = erlang:system_info(version),
     case DetsInfo of
 	{ErtsVer, DetsData}  ->
-	    Res = (catch dets:is_compatible_bchunk_format(Tab, DetsData)),
-	    case Res of
-		{'EXIT',{undef,[{dets,_,_,_}|_]}} ->
-		    Sender ! {self(), {old_protocol, Tab}},
-		    dets:init_table(Tab, Fun);  %% Old dets version
-		{'EXIT', What} ->
-		    exit(What);
+	    try dets:is_compatible_bchunk_format(Tab, DetsData) of
 		false ->
 		    Sender ! {self(), {old_protocol, Tab}},
 		    dets:init_table(Tab, Fun);  %% Old dets version
 		true ->
 		    dets:init_table(Tab, Fun, [{format, bchunk}])
+	    catch
+		error:{undef,[{dets,_,_,_}|_]} ->
+		    Sender ! {self(), {old_protocol, Tab}},
+		    dets:init_table(Tab, Fun);  %% Old dets version
+		error:What ->
+		    What
 	    end;
 	Old when Old /= false ->
 	    Sender ! {self(), {old_protocol, Tab}},
@@ -461,10 +462,10 @@ init_table(Tab, disc_only_copies, Fun, DetsInfo,Sender) ->
 	    dets:init_table(Tab, Fun)
     end;
 init_table(Tab, _, Fun, _DetsInfo,_) ->
-    case catch ets:init_table(Tab, Fun) of
-	true ->
-	    ok;
-	{'EXIT', Else} -> Else
+    try
+	true = ets:init_table(Tab, Fun),
+	ok
+    catch _:Else -> {Else, erlang:get_stacktrace()}
     end.
 
 
@@ -571,9 +572,9 @@ handle_last({ram_copies, Tab}, _Type, DatBin) ->
 down(Tab, Storage) ->
     case Storage of
 	ram_copies ->
-	    catch ?ets_delete_table(Tab);
+	    ?SAFE(?ets_delete_table(Tab));
 	disc_copies ->
-	    catch ?ets_delete_table(Tab);
+	    ?SAFE(?ets_delete_table(Tab));
 	disc_only_copies ->
 	    TmpFile = mnesia_lib:tab2tmp(Tab),
 	    mnesia_lib:dets_sync_close(Tab),
@@ -657,26 +658,23 @@ send_table(Pid, Tab, RemoteS) ->
 	    {Init, Chunk} = reader_funcs(UseDetsChunk, Tab, Storage, KeysPerTransfer),
 
 	    SendIt = fun() ->
-			     prepare_copy(Pid, Tab, Storage),
+			     {atomic, ok} = prepare_copy(Pid, Tab, Storage),
 			     send_more(Pid, 1, Chunk, Init(), Tab),
 			     finish_copy(Pid, Tab, Storage, RemoteS)
 		     end,
 
-	    case catch SendIt() of
-		receiver_died ->
+	    try SendIt() of
+		{_, receiver_died} -> ok;
+		{atomic, no_more} ->  ok
+	    catch
+		throw:receiver_died ->
 		    cleanup_tab_copier(Pid, Storage, Tab),
-		    unlink(whereis(mnesia_tm)),
 		    ok;
-		{_, receiver_died} ->
-		    unlink(whereis(mnesia_tm)),
-		    ok;
-		{atomic, no_more} ->
-		    unlink(whereis(mnesia_tm)),
-		    ok;
-		Reason ->
+		error:Reason -> %% Prepare failed
 		    cleanup_tab_copier(Pid, Storage, Tab),
-		    unlink(whereis(mnesia_tm)),
-		    {error, Reason}
+		    {error, {tab_copier, Tab, {Reason, erlang:get_stacktrace()}}}
+	    after
+		unlink(whereis(mnesia_tm))
 	    end
     end.
 
@@ -689,12 +687,7 @@ prepare_copy(Pid, Tab, Storage) ->
 		mnesia_lib:db_fixtable(Storage, Tab, true),
 		ok
 	end,
-    case mnesia:transaction(Trans) of
-	{atomic, ok} ->
-	    ok;
-	{aborted, Reason} ->
-	    exit({tab_copier_prepare, Tab, Reason})
-    end.
+    mnesia:transaction(Trans).
 
 update_where_to_write(Tab, Node) ->
     case val({Tab, access_mode}) of
@@ -827,6 +820,6 @@ dat2bin(_Tab, _LocalS, _RemoteS) ->
     nobin.
 
 handle_exit(Pid, Reason) when node(Pid) == node() ->
-    exit(Reason);
+    error(Reason);
 handle_exit(_Pid, _Reason) ->  %% Not from our node, this will be handled by
     ignore.                  %% mnesia_down soon.
diff --git a/lib/mnesia/src/mnesia_locker.erl b/lib/mnesia/src/mnesia_locker.erl
index 1efb939e00..6658dbeacb 100644
--- a/lib/mnesia/src/mnesia_locker.erl
+++ b/lib/mnesia/src/mnesia_locker.erl
@@ -98,7 +98,7 @@ init(Parent) ->
 
 val(Var) ->
     case ?catch_val(Var) of
-	{'EXIT', _ReASoN_} -> mnesia_lib:other_val(Var, _ReASoN_);
+	{'EXIT', _} -> mnesia_lib:other_val(Var);
 	_VaLuE_ -> _VaLuE_
     end.
 
@@ -1001,13 +1001,11 @@ flush_remaining(Ns=[Node | Tail], SkipNode, Res) ->
 
 opt_lookup_in_client(lookup_in_client, Oid, Lock) ->
     {Tab, Key} = Oid,
-    case catch mnesia_lib:db_get(Tab, Key) of
-	{'EXIT', _} ->
+    try mnesia_lib:db_get(Tab, Key)
+    catch error:_ ->
 	    %% Table has been deleted from this node,
 	    %% restart the transaction.
-	    #cyclic{op = read, lock = Lock, oid = Oid, lucky = nowhere};
-	Val ->
-	    Val
+	    #cyclic{op = read, lock = Lock, oid = Oid, lucky = nowhere}
     end;
 opt_lookup_in_client(Val, _Oid, _Lock) ->
     Val.
@@ -1139,11 +1137,10 @@ send_requests([], _X) ->
 
 rec_requests([Node | Nodes], Oid, Store) ->
     Res = l_req_rec(Node, Store),
-    case catch rlock_get_reply(Node, Store, Oid, Res) of
-	{'EXIT', Reason} ->
-	    flush_remaining(Nodes, Node, Reason);
-	_ ->
-	    rec_requests(Nodes, Oid, Store)
+    try rlock_get_reply(Node, Store, Oid, Res) of
+	_ -> rec_requests(Nodes, Oid, Store)
+    catch _:Reason ->
+	    flush_remaining(Nodes, Node, Reason)
     end;
 rec_requests([], _Oid, _Store) ->
     ok.
diff --git a/lib/mnesia/src/mnesia_log.erl b/lib/mnesia/src/mnesia_log.erl
index d2fd04a60b..8620949dc0 100644
--- a/lib/mnesia/src/mnesia_log.erl
+++ b/lib/mnesia/src/mnesia_log.erl
@@ -200,7 +200,7 @@ log_header(Kind, Version) ->
 		log_kind=Kind,
 		mnesia_version=mnesia:system_info(version),
 		node=node(),
-		now=now()}.
+		now=erlang:timestamp()}.
 
 version() -> "4.3".
 
@@ -349,6 +349,8 @@ open_log(Name, Header, Fname, Exists, Repair, Mode) ->
 	    mnesia_lib:important("Data may be missing, log ~p repaired: Lost ~p bytes~n",
 				 [Fname, BadBytes]),
 	    Log;
+	{error, Reason = {file_error, _Fname, emfile}} ->
+	    fatal("Cannot open log file ~p: ~p~n", [Fname, Reason]);
 	{error, Reason} when Repair == true ->
 	    file:delete(Fname),
 	    mnesia_lib:important("Data may be missing, Corrupt logfile deleted: ~p, ~p ~n",
@@ -462,7 +464,7 @@ chunk_log(Cont) ->
 chunk_log(_Log, eof) ->
     eof;
 chunk_log(Log, Cont) ->
-    case catch disk_log:chunk(Log, Cont) of
+    case disk_log:chunk(Log, Cont) of
 	{error, Reason} ->
 	    fatal("Possibly truncated ~p file: ~p~n",
 		  [Log, Reason]);
@@ -647,11 +649,11 @@ backup_checkpoint(Name, Opaque, Args) when is_list(Args) ->
     end.
 
 check_backup_args([Arg | Tail], B) ->
-    case catch check_backup_arg_type(Arg, B) of
-	{'EXIT', _Reason} ->
-	    {error, {badarg, Arg}};
+    try check_backup_arg_type(Arg, B) of
 	B2 ->
 	    check_backup_args(Tail, B2)
+    catch error:_ ->
+	    {error, {badarg, Arg}}
     end;
 
 check_backup_args([], B) ->
@@ -674,11 +676,11 @@ check_backup_arg_type(Arg, B) ->
 
 backup_master(ClientPid, B) ->
     process_flag(trap_exit, true),
-    case catch do_backup_master(B) of
-	{'EXIT', Reason} ->
-	    ClientPid ! {self(), ClientPid, {error, {'EXIT', Reason}}};
+    try do_backup_master(B) of
 	Res ->
 	    ClientPid ! {self(), ClientPid, Res}
+    catch _:Reason ->
+	    ClientPid ! {self(), ClientPid, {error, {'EXIT', Reason}}}
     end,
     unlink(ClientPid),
     exit(normal).
@@ -736,10 +738,10 @@ safe_apply(B, What, Args) ->
 	{'EXIT', Pid, R} -> Abort({'EXIT', Pid, R})
     after 0 ->
 	    Mod = B#backup_args.module,
-	    case catch apply(Mod, What, Args) of
+	    try apply(Mod, What, Args) of
 		{ok, Opaque} -> B#backup_args{opaque=Opaque};
-		{error, R} -> Abort(R);
-		R -> Abort(R)
+		{error, R} -> Abort(R)
+	    catch _:R -> Abort(R)
 	    end
     end.
 
@@ -748,10 +750,9 @@ abort_write(B, What, Args, Reason) ->
     Opaque = B#backup_args.opaque,
     dbg_out("Failed to perform backup. M=~p:F=~p:A=~p -> ~p~n",
 	    [Mod, What, Args, Reason]),
-    case catch apply(Mod, abort_write, [Opaque]) of
-	{ok, _Res} ->
-	    throw({error, Reason});
-	Other ->
+    try apply(Mod, abort_write, [Opaque]) of
+	{ok, _Res} -> throw({error, Reason})
+    catch _:Other ->
 	    error("Failed to abort backup. ~p:~p~p -> ~p~n",
 		  [Mod, abort_write, [Opaque], Other]),
 	    throw({error, Reason})
@@ -892,10 +893,8 @@ tab_receiver(Pid, B, Tab, RecName, Slot) ->
     end.
 
 rec_filter(B, schema, _RecName, Recs) ->
-    case catch mnesia_bup:refresh_cookie(Recs, B#backup_args.cookie) of
-	Recs2 when is_list(Recs2) ->
-	    Recs2;
-	{error, _Reason} ->
+    try mnesia_bup:refresh_cookie(Recs, B#backup_args.cookie)
+    catch throw:{error, _Reason} ->
 	    %% No schema table cookie
 	    Recs
     end;
@@ -1006,13 +1005,14 @@ add_recs([{{Tab, _Key}, Val, delete_object} | Rest], N) ->
     add_recs(Rest, N+1);
 add_recs([{{Tab, Key}, Val, update_counter} | Rest], N) ->
     {RecName, Incr} = Val,
-    case catch ets:update_counter(Tab, Key, Incr) of
-	CounterVal when is_integer(CounterVal) ->
-	    ok;
-	_ when Incr < 0 ->
+    try
+	CounterVal = ets:update_counter(Tab, Key, Incr),
+	true = (CounterVal >= 0)
+    catch
+	error:_ when Incr < 0 ->
 	    Zero = {RecName, Key, 0},
 	    true = ets:insert(Tab, Zero);
-	_ ->
+	error:_ ->
 	    Zero = {RecName, Key, Incr},
 	    true = ets:insert(Tab, Zero)
     end,
diff --git a/lib/mnesia/src/mnesia_monitor.erl b/lib/mnesia/src/mnesia_monitor.erl
index 6fc1a394a6..14b1ab5c1a 100644
--- a/lib/mnesia/src/mnesia_monitor.erl
+++ b/lib/mnesia/src/mnesia_monitor.erl
@@ -268,7 +268,7 @@ init([Parent]) ->
     set(version, Version),
     dbg_out("Version: ~p~n", [Version]),
 
-    case catch process_config_args(env()) of
+    try process_config_args(env()) of
 	ok ->
 	    mnesia_lib:set({'$$$_report', current_pos}, 0),
 	    Level = mnesia_lib:val(debug),
@@ -288,8 +288,8 @@ init([Parent]) ->
 	    set(pending_checkpoints, []),
 	    set(pending_checkpoint_pids, []),
 
-	    {ok, #state{supervisor = Parent}};
-	{'EXIT', Reason} ->
+	    {ok, #state{supervisor = Parent}}
+    catch _:Reason ->
 	    mnesia_lib:report_fatal("Bad configuration: ~p~n", [Reason]),
 	    {stop, {bad_config, Reason}}
     end.
@@ -323,25 +323,24 @@ non_empty_dir() ->
 %%----------------------------------------------------------------------
 
 handle_call({mktab, Tab, Args}, _From, State) ->
-    case catch ?ets_new_table(Tab, Args) of
-	{'EXIT', ExitReason} ->
+    try ?ets_new_table(Tab, Args) of
+	Reply ->
+	    {reply, Reply, State}
+    catch error:ExitReason ->
 	    Msg = "Cannot create ets table",
 	    Reason = {system_limit, Msg, Tab, Args, ExitReason},
 	    fatal("~p~n", [Reason]),
-	    {noreply, State};
-	Reply ->
-	    {reply, Reply, State}
+	    {noreply, State}
     end;
 
 handle_call({unsafe_mktab, Tab, Args}, _From, State) ->
-    case catch ?ets_new_table(Tab, Args) of
-	{'EXIT', ExitReason} ->
-	    {reply, {error, ExitReason}, State};
+    try ?ets_new_table(Tab, Args) of
 	Reply ->
 	    {reply, Reply, State}
+    catch error:ExitReason ->
+	    {reply, {error, ExitReason}, State}
     end;
 
-
 handle_call({open_dets, Tab, Args}, _From, State) ->
     case mnesia_lib:dets_sync_open(Tab, Args) of
 	{ok, Tab} ->
@@ -546,7 +545,7 @@ handle_info({'EXIT', Pid, fatal}, State) when node(Pid) == node() ->
     %% is in progress
     %% exit(State#state.supervisor, shutdown),
     %% It is better to kill an innocent process
-    catch exit(whereis(mnesia_locker), kill),
+    ?SAFE(exit(whereis(mnesia_locker), kill)),
     {noreply, State};
 
 handle_info(Msg = {'EXIT',Pid,_}, State) ->
@@ -664,6 +663,7 @@ env() ->
      backup_module,
      debug,
      dir,
+     dump_disc_copies_at_startup,
      dump_log_load_regulation,
      dump_log_time_threshold,
      dump_log_update_in_place,
@@ -692,6 +692,8 @@ default_env(debug) ->
 default_env(dir) ->
     Name = lists:concat(["Mnesia.", node()]),
     filename:absname(Name);
+default_env(dump_disc_copies_at_startup) ->
+    true;
 default_env(dump_log_load_regulation) ->
     false;
 default_env(dump_log_time_threshold) ->
@@ -724,11 +726,8 @@ default_env(send_compressed) ->
     0.
 
 check_type(Env, Val) ->
-    case catch do_check_type(Env, Val) of
-	{'EXIT', _Reason} ->
-	    exit({bad_config, Env, Val});
-	NewVal ->
-	    NewVal
+    try do_check_type(Env, Val)
+    catch error:_ -> exit({bad_config, Env, Val})
     end.
 
 do_check_type(access_module, A) when is_atom(A) -> A;
@@ -741,6 +740,7 @@ do_check_type(debug, trace) -> trace;
 do_check_type(debug, true) -> debug;
 do_check_type(debug, verbose) -> verbose;
 do_check_type(dir, V) -> filename:absname(V);
+do_check_type(dump_disc_copies_at_startup, B) -> bool(B);
 do_check_type(dump_log_load_regulation, B) -> bool(B);
 do_check_type(dump_log_time_threshold, I) when is_integer(I), I > 0 -> I;
 do_check_type(dump_log_update_in_place, B) -> bool(B);
@@ -777,12 +777,12 @@ media(opt_disc) -> opt_disc;
 media(ram) -> ram.
 
 patch_env(Env, Val) ->
-    case catch do_check_type(Env, Val) of
-	{'EXIT', _Reason} ->
-	    {error, {bad_type, Env, Val}};
+    try do_check_type(Env, Val) of
 	NewVal ->
 	    application_controller:set_env(mnesia, Env, NewVal),
 	    NewVal
+    catch error:_ ->
+	    {error, {bad_type, Env, Val}}
     end.
 
 detect_partitioned_network(Mon, Node) ->
diff --git a/lib/mnesia/src/mnesia_recover.erl b/lib/mnesia/src/mnesia_recover.erl
index eeb4fa0ced..aa567a23cb 100644
--- a/lib/mnesia/src/mnesia_recover.erl
+++ b/lib/mnesia/src/mnesia_recover.erl
@@ -178,11 +178,8 @@ log_decision(D) ->
 
 val(Var) ->
     case ?catch_val(Var) of
-	{'EXIT', Reason} ->
-            case mnesia_lib:other_val(Var) of
-                error -> mnesia_lib:pr_other(Var, Reason);
-                Val -> Val
-            end;
+	{'EXIT', _Reason} ->
+	    mnesia_lib:other_val(Var);
 	Value -> Value
     end.
 
@@ -373,11 +370,8 @@ log_master_nodes2([], _UseDir, IsRunning, WorstRes) ->
 get_master_node_info() ->
     Tab = mnesia_decision,
     Pat = {master_nodes, '_', '_'},
-    case catch mnesia_lib:db_match_object(ram_copies,Tab, Pat) of
-	{'EXIT', _} ->
-	    [];
-	Masters ->
-	    Masters
+    try mnesia_lib:db_match_object(ram_copies,Tab, Pat)
+    catch error:_ -> []
     end.
 
 get_master_node_tables() ->
@@ -385,9 +379,8 @@ get_master_node_tables() ->
     [Tab || {master_nodes, Tab, _Nodes} <- Masters].
 
 get_master_nodes(Tab) ->
-    case catch ?ets_lookup_element(mnesia_decision, Tab, 3) of
-	{'EXIT', _} -> [];
-	Nodes  -> Nodes
+    try ?ets_lookup_element(mnesia_decision, Tab, 3)
+    catch error:_ -> []
     end.
 
 %% Determine what has happened to the transaction
@@ -485,8 +478,6 @@ load_decision_tab() ->
     load_decision_tab(Cont, load_decision_tab),
     mnesia_log:close_decision_tab().
 
-load_decision_tab(eof, _InitBy) ->
-    ok;
 load_decision_tab(Cont, InitBy) ->
     case mnesia_log:chunk_decision_tab(Cont) of
 	{Cont2, Decisions} ->
@@ -519,8 +510,6 @@ dump_decision_log(InitBy) ->
     Cont = mnesia_log:prepare_decision_log_dump(),
     perform_dump_decision_log(Cont, InitBy).
 
-perform_dump_decision_log(eof, _InitBy) ->
-    confirm_decision_log_dump();
 perform_dump_decision_log(Cont, InitBy) when InitBy == startup ->
     case mnesia_log:chunk_decision_log(Cont) of
 	{Cont2, Decisions} ->
@@ -1024,7 +1013,7 @@ decision(Tid) ->
     decision(Tid, tabs()).
 
 decision(Tid, [Tab | Tabs]) ->
-    case catch ?ets_lookup(Tab, Tid) of
+    try ?ets_lookup(Tab, Tid) of
 	[D] when is_record(D, decision) ->
 	    D;
 	[C] when is_record(C, transient_decision) ->
@@ -1034,8 +1023,8 @@ decision(Tid, [Tab | Tabs]) ->
 		      ram_nodes = []
 		     };
 	[] ->
-	    decision(Tid, Tabs);
-	{'EXIT', _} ->
+	    decision(Tid, Tabs)
+    catch error:_ ->
 	    %% Recently switched transient decision table
 	    decision(Tid, Tabs)
     end;
@@ -1046,11 +1035,8 @@ outcome(Tid, Default) ->
     outcome(Tid, Default, tabs()).
 
 outcome(Tid, Default, [Tab | Tabs]) ->
-    case catch ?ets_lookup_element(Tab, Tid, 3) of
-	{'EXIT', _} ->
-	    outcome(Tid, Default, Tabs);
-	Val ->
-	    Val
+    try ?ets_lookup_element(Tab, Tid, 3)
+    catch error:_ -> outcome(Tid, Default, Tabs)
     end;
 outcome(_Tid, Default, []) ->
     Default.
diff --git a/lib/mnesia/src/mnesia_schema.erl b/lib/mnesia/src/mnesia_schema.erl
index 6e43052fb0..4c8234bbc7 100644
--- a/lib/mnesia/src/mnesia_schema.erl
+++ b/lib/mnesia/src/mnesia_schema.erl
@@ -151,7 +151,7 @@ exit_on_error(GoodRes) ->
 
 val(Var) ->
     case ?catch_val(Var) of
-	{'EXIT', Reason} -> mnesia_lib:other_val(Var, Reason);
+	{'EXIT', _} -> mnesia_lib:other_val(Var);
 	Value -> Value
     end.
 
@@ -262,7 +262,7 @@ incr_version(Cs) ->
             [] -> {Major + 1, 0};    % All replicas are active
             _ -> {Major, Minor + 1}  % Some replicas are inactive
         end,
-    Cs#cstruct{version = {V, {node(), now()}}}.
+    Cs#cstruct{version = {V, {node(), erlang:timestamp()}}}.
 
 %% Returns table name
 insert_cstruct(Tid, Cs, KeepWhereabouts) ->
@@ -2151,14 +2151,14 @@ prepare_op(_Tid, {op, transform, Fun, TabDef}, _WaitFor) ->
 	    mnesia_lib:db_fixtable(Storage, Tab, true),
             Key = mnesia_lib:db_first(Tab),
 	    Op = {op, transform, Fun, TabDef},
-            case catch transform_objs(Fun, Tab, RecName,
-				      Key, NewArity, Storage, Type, [Op]) of
-                {'EXIT', Reason} ->
-		    mnesia_lib:db_fixtable(Storage, Tab, false),
-                    exit({"Bad transform function", Tab, Fun, node(), Reason});
+            try transform_objs(Fun, Tab, RecName, Key,
+			       NewArity, Storage, Type, [Op]) of
                 Objs ->
 		    mnesia_lib:db_fixtable(Storage, Tab, false),
                     {true, Objs, mandatory}
+	    catch _:Reason ->
+		    mnesia_lib:db_fixtable(Storage, Tab, false),
+                    exit({"Bad transform function", Tab, Fun, node(), Reason})
             end
     end;
 
@@ -2342,7 +2342,7 @@ undo_prepare_commit(Tid, Commit) ->
 	    ignore;
 	Ops ->
 	    %% Catch to allow failure mnesia_controller may not be started
-	    catch mnesia_controller:release_schema_commit_lock(),
+	    ?SAFE(mnesia_controller:release_schema_commit_lock()),
 	    undo_prepare_ops(Tid, Ops)
     end,
     Commit.
@@ -2489,14 +2489,14 @@ ram_delete_table(Tab, Storage) ->
 	    %% delete possible index files and data .....
 	    %% Got to catch this since if no info has been set in the
 	    %% mnesia_gvar it will crash
-	    catch mnesia_index:del_transient(Tab, Storage),
+	    ?CATCH(mnesia_index:del_transient(Tab, Storage)),
 	    case ?catch_val({Tab, {index, snmp}}) of
 		{'EXIT', _} ->
 		    ignore;
 		Etab ->
-		    catch mnesia_snmp_hook:delete_table(Tab, Etab)
+		    ?SAFE(mnesia_snmp_hook:delete_table(Tab, Etab))
 	    end,
-	    catch ?ets_delete_table(Tab)
+	    ?SAFE(?ets_delete_table(Tab))
     end.
 
 purge_dir(Dir, KeepFiles) ->
@@ -2584,10 +2584,7 @@ info2(_, []) ->
     io:format("~n", []).
 
 get_table_properties(Tab) ->
-    case catch mnesia_lib:db_match_object(ram_copies,
-					  mnesia_gvar, {{Tab, '_'}, '_'}) of
-	{'EXIT', _} ->
-	    mnesia:abort({no_exists, Tab, all});
+    try mnesia_lib:db_match_object(ram_copies, mnesia_gvar, {{Tab, '_'}, '_'}) of
 	RawGvar ->
 	    case [{Item, Val} || {{_Tab, Item}, Val} <- RawGvar] of
 		[] ->
@@ -2598,6 +2595,8 @@ get_table_properties(Tab) ->
 		    Master = {master_nodes, mnesia:table_info(Tab, master_nodes)},
 		    lists:sort([Size, Memory, Master | Gvar])
 	    end
+    catch error:_ ->
+	    mnesia:abort({no_exists, Tab, all})
     end.
 
 %%%%%%%%%%% RESTORE %%%%%%%%%%%
@@ -2620,15 +2619,15 @@ restore(_Opaque, BadArg) ->
     {aborted, {badarg, BadArg}}.
 restore(Opaque, Args, Module) when is_list(Args), is_atom(Module) ->
     InitR = #r{opaque = Opaque, module = Module},
-    case catch lists:foldl(fun check_restore_arg/2, InitR, Args) of
+    try lists:foldl(fun check_restore_arg/2, InitR, Args) of
 	R when is_record(R, r) ->
 	    case mnesia_bup:read_schema(R#r.module, Opaque) of
 		{error, Reason} ->
 		    {aborted, Reason};
 		BupSchema ->
 		    schema_transaction(fun() -> do_restore(R, BupSchema) end)
-	    end;
-	{'EXIT', Reason} ->
+	    end
+    catch exit:Reason ->
 	    {aborted, Reason}
     end;
 restore(_Opaque, Args, Module) ->
@@ -3073,15 +3072,13 @@ do_make_merge_schema(Node, NeedsConv, RemoteCs = #cstruct{}) ->
 %% Returns a new cstruct or issues a fatal error
 merge_cstructs(Cs, RemoteCs, Force) ->
     verify_cstruct(Cs),
-    case catch do_merge_cstructs(Cs, RemoteCs, Force) of
-	{'EXIT', {aborted, _Reason}} when Force == true ->
-	    Cs;
-	{'EXIT', Reason} ->
-	    exit(Reason);
+    try do_merge_cstructs(Cs, RemoteCs, Force) of
 	MergedCs when is_record(MergedCs, cstruct) ->
-	    MergedCs;
-	Other ->
-	    throw(Other)
+	    MergedCs
+    catch exit:{aborted, _Reason} when Force == true ->
+	    Cs;
+	  exit:Reason -> exit(Reason);
+	  error:Reason -> exit(Reason)
     end.
 
 do_merge_cstructs(Cs, RemoteCs, Force) ->
diff --git a/lib/mnesia/src/mnesia_snmp_hook.erl b/lib/mnesia/src/mnesia_snmp_hook.erl
index 256f83b029..c76cf89ebb 100644
--- a/lib/mnesia/src/mnesia_snmp_hook.erl
+++ b/lib/mnesia/src/mnesia_snmp_hook.erl
@@ -30,15 +30,6 @@
 
 -include("mnesia.hrl").
 
-val(Var) ->
-    case ?catch_val(Var) of
-	{'EXIT', _ReASoN_} ->
-            case mnesia_lib:other_val(Var) of
-                error -> mnesia_lib:pr_other(Var, _ReASoN_);
-                Val -> Val
-            end;
-	_VaLuE_ -> _VaLuE_ 
-    end.
 
 check_ustruct([]) ->
     true;  %% default value, not SNMP'ified
@@ -85,12 +76,12 @@ delete_table(_MnesiaTab, Tree) ->
 %%-----------------------------------------------------------------
    
 update({clear_table, MnesiaTab}) ->
-    Tree = val({MnesiaTab, {index, snmp}}),
+    Tree = mnesia_lib:val({MnesiaTab, {index, snmp}}),
     b_clear(Tree),
     ok;
     
 update({Op, MnesiaTab, MnesiaKey, SnmpKey}) ->
-    Tree = val({MnesiaTab, {index, snmp}}),
+    Tree = mnesia_lib:val({MnesiaTab, {index, snmp}}),
     update(Op, Tree, MnesiaKey, SnmpKey).
 
 update(Op, Tree, MnesiaKey, SnmpKey) ->
@@ -120,7 +111,7 @@ update(Op, Tree, MnesiaKey, SnmpKey) ->
 %%-----------------------------------------------------------------
 
 key_to_oid(Tab,Key) ->
-    Types = val({Tab,snmp}),
+    Types = mnesia_lib:val({Tab,snmp}),
     key_to_oid(Tab, Key, Types).
 	     
 key_to_oid(Tab, Key, [{key, Types}]) ->
@@ -144,7 +135,7 @@ keys_to_oid(N, Key, Oid, Types) ->
 %% This can be lookup up in tree but that might be on a remote node.
 %% It's probably faster to look it up, but use when it migth be remote 
 oid_to_key(Oid, Tab) ->
-    [{key, Types}] = val({Tab,snmp}),
+    [{key, Types}] = mnesia_lib:val({Tab,snmp}),
     oid_to_key_1(Types, Oid). 
 
 oid_to_key_1(integer, [Key])  -> Key;
diff --git a/lib/mnesia/src/mnesia_subscr.erl b/lib/mnesia/src/mnesia_subscr.erl
index 866a57e370..c39edea9e3 100644
--- a/lib/mnesia/src/mnesia_subscr.erl
+++ b/lib/mnesia/src/mnesia_subscr.erl
@@ -186,11 +186,11 @@ patch_record(Tab, Obj) ->
     end.
 
 what(Tab, Tid, {RecName, Key}, delete, undefined) ->
-    case catch mnesia_lib:db_get(Tab, Key) of
-	Old when is_list(Old) -> %% Op only allowed for set table.
-	    {mnesia_table_event, {delete, Tab, {RecName, Key}, Old, Tid}};
-	_ ->
-	    %% Record just deleted by a dirty_op or 
+    try mnesia_lib:db_get(Tab, Key) of
+	Old -> %% Op only allowed for set table.
+	    {mnesia_table_event, {delete, Tab, {RecName, Key}, Old, Tid}}
+    catch error:_ ->
+	    %% Record just deleted by a dirty_op or
 	    %% the whole table has been deleted
 	    ignore
     end;
@@ -199,10 +199,10 @@ what(Tab, Tid, Obj, delete, Old) ->
 what(Tab, Tid, Obj, delete_object, _Old) ->
     {mnesia_table_event, {delete, Tab, Obj, [Obj], Tid}};
 what(Tab, Tid, Obj, write, undefined) ->
-    case catch mnesia_lib:db_get(Tab, element(2, Obj)) of
-	Old when is_list(Old) ->
-	    {mnesia_table_event, {write, Tab, Obj, Old, Tid}};
-	{'EXIT', _} ->
+    try	mnesia_lib:db_get(Tab, element(2, Obj)) of
+	Old ->
+	    {mnesia_table_event, {write, Tab, Obj, Old, Tid}}
+    catch error:_ ->
 	    ignore
     end;
 what(Tab, Tid, Obj, write, Old) ->
@@ -386,12 +386,12 @@ activate(ClientPid, What, Var, OldSubscribers, SubscrTab) ->
     case lists:member(ClientPid, Old) of
 	false ->
 	    %% Don't care about checking old links
-	    case catch link(ClientPid) of
+	    try link(ClientPid) of
 		true ->
 		    ?ets_insert(SubscrTab, {ClientPid, What}),
 		    add_subscr(Var, What, ClientPid),
-		    {ok, node()};
-		{'EXIT', _Reason} ->
+		    {ok, node()}
+	    catch error:_ ->
 		    {error, {no_exists, ClientPid}}
 	    end;
 	true ->
@@ -443,11 +443,10 @@ add_subscr({Tab, commit_work}, What, Pid) ->
 
 deactivate(ClientPid, What, Var, SubscrTab) ->
     ?ets_match_delete(SubscrTab, {ClientPid, What}),
-    case catch ?ets_lookup_element(SubscrTab, ClientPid, 1) of
-	List when is_list(List) ->
-	    ignore;
-	{'EXIT', _} ->
-	    unlink(ClientPid)
+    try
+	?ets_lookup_element(SubscrTab, ClientPid, 1),
+	ignore
+    catch error:_ -> unlink(ClientPid)
     end,
     try
 	del_subscr(Var, What, ClientPid),
diff --git a/lib/mnesia/src/mnesia_text.erl b/lib/mnesia/src/mnesia_text.erl
index 0906d18da9..794e633238 100644
--- a/lib/mnesia/src/mnesia_text.erl
+++ b/lib/mnesia/src/mnesia_text.erl
@@ -84,8 +84,12 @@ validate_tab({Tabname, RecName, List}) ->
 validate_tab(_) -> error(badtab).
 
 make_tabs([{Tab, Def} | Tail]) ->
-    case catch mnesia:table_info(Tab, where_to_read) of
-	{'EXIT', _} -> %% non-existing table
+    try mnesia:table_info(Tab, where_to_read) of
+	Node ->
+	    io:format("** Table ~w already exists on ~p, just entering data~n",
+		      [Tab, Node]),
+	    make_tabs(Tail)
+    catch exit:_ -> %% non-existing table
 	    case mnesia:create_table(Tab, Def) of
 		{aborted, Reason} ->
 		    io:format("** Failed to create table ~w ~n"
@@ -95,11 +99,7 @@ make_tabs([{Tab, Def} | Tail]) ->
 		_ -> 
 		    io:format("New table ~w~n", [Tab]),
 		    make_tabs(Tail)
-	    end;
-	Node ->
-	    io:format("** Table ~w already exists on ~p, just entering data~n",
-		      [Tab, Node]),
-	    make_tabs(Tail)
+	    end
     end;
 
 make_tabs([]) -> 
@@ -118,11 +118,9 @@ load_data(L) ->
 parse(File) ->
     case file(File) of
 	{ok, Terms} ->
-	    case catch collect(Terms) of
-		{error, X} ->
-		    {error, X};
-		Other ->
-		    {ok, Other}
+	    try collect(Terms) of
+		Other -> {ok, Other}
+	    catch throw:Error -> Error
 	    end;
 	Other ->
 	    Other
diff --git a/lib/mnesia/src/mnesia_tm.erl b/lib/mnesia/src/mnesia_tm.erl
index af658150da..b4b46228e9 100644
--- a/lib/mnesia/src/mnesia_tm.erl
+++ b/lib/mnesia/src/mnesia_tm.erl
@@ -51,6 +51,7 @@
 	]).
 
 -include("mnesia.hrl").
+
 -import(mnesia_lib, [set/2]).
 -import(mnesia_lib, [fatal/2, verbose/2, dbg_out/2]).
 
@@ -119,7 +120,7 @@ init(Parent) ->
 
 val(Var) ->
     case ?catch_val(Var) of
-	{'EXIT', _ReASoN_} -> mnesia_lib:other_val(Var, _ReASoN_);
+	{'EXIT', _} -> mnesia_lib:other_val(Var);
 	_VaLuE_ -> _VaLuE_
     end.
 
@@ -224,11 +225,7 @@ doit_loop(#state{coordinators=Coordinators,participants=Participants,supervisor=
 	    end;
 
 	{From, start_outer} -> %% Create and associate ets_tab with Tid
-	    case catch ?ets_new_table(mnesia_trans_store, [bag, public]) of
-		{'EXIT', Reason} -> %% system limit
-		    Msg = "Cannot create an ets table for the "
-	                  "local transaction store",
-		    reply(From, {error, {system_limit, Msg, Reason}}, State);
+	    try ?ets_new_table(mnesia_trans_store, [bag, public]) of
 		Etab ->
 		    tmlink(From),
 		    C = mnesia_recover:incr_trans_tid_serial(),
@@ -237,6 +234,10 @@ doit_loop(#state{coordinators=Coordinators,participants=Participants,supervisor=
 		    A2 = gb_trees:insert(Tid,[Etab],Coordinators),
 		    S2 = State#state{coordinators = A2},
 		    reply(From, {new_tid, Tid, Etab}, S2)
+	    catch error:Reason -> %% system limit
+		    Msg = "Cannot create an ets table for the "
+			"local transaction store",
+		    reply(From, {error, {system_limit, Msg, Reason}}, State)
 	    end;
 
 	{From, {ask_commit, Protocol, Tid, Commit, DiscNs, RamNs}} ->
@@ -339,15 +340,15 @@ doit_loop(#state{coordinators=Coordinators,participants=Participants,supervisor=
 	    end;
 
 	{From, {add_store, Tid}} -> %% new store for nested  transaction
-	    case catch ?ets_new_table(mnesia_trans_store, [bag, public]) of
-		{'EXIT', Reason} -> %% system limit
-		    Msg = "Cannot create an ets table for a nested "
-                          "local transaction store",
-		    reply(From, {error, {system_limit, Msg, Reason}}, State);
+	    try ?ets_new_table(mnesia_trans_store, [bag, public]) of
 		Etab ->
 		    A2 = add_coord_store(Coordinators, Tid, Etab),
 		    reply(From, {new_store, Etab},
 			  State#state{coordinators = A2})
+	    catch error:Reason -> %% system limit
+		    Msg = "Cannot create an ets table for a nested "
+			"local transaction store",
+		    reply(From, {error, {system_limit, Msg, Reason}}, State)
 	    end;
 
 	{From, {del_store, Tid, Current, Obsolete, PropagateStore}} ->
@@ -471,13 +472,13 @@ doit_loop(#state{coordinators=Coordinators,participants=Participants,supervisor=
 
 do_sync_dirty(From, Tid, Commit, _Tab) ->
     ?eval_debug_fun({?MODULE, sync_dirty, pre}, [{tid, Tid}]),
-    Res = (catch do_dirty(Tid, Commit)),
+    Res = do_dirty(Tid, Commit),
     ?eval_debug_fun({?MODULE, sync_dirty, post}, [{tid, Tid}]),
     From ! {?MODULE, node(), {dirty_res, Res}}.
 
 do_async_dirty(Tid, Commit, _Tab) ->
     ?eval_debug_fun({?MODULE, async_dirty, pre}, [{tid, Tid}]),
-    catch do_dirty(Tid, Commit),
+    do_dirty(Tid, Commit),
     ?eval_debug_fun({?MODULE, async_dirty, post}, [{tid, Tid}]).
 
 
@@ -501,7 +502,7 @@ process_dirty_queue(_Tab, []) ->
     [].
 
 prepare_pending_coordinators([{Tid, [Store | _Etabs]} | Coords], IgnoreNew) ->
-    case catch ?ets_lookup(Store, pending) of
+    try ?ets_lookup(Store, pending) of
 	[] ->
 	    prepare_pending_coordinators(Coords, IgnoreNew);
 	[Pending] ->
@@ -511,8 +512,8 @@ prepare_pending_coordinators([{Tid, [Store | _Etabs]} | Coords], IgnoreNew) ->
 		true ->
 		    ignore
 	    end,
-	    prepare_pending_coordinators(Coords, IgnoreNew);
-	{'EXIT', _} ->
+	    prepare_pending_coordinators(Coords, IgnoreNew)
+    catch error:_ ->
 	    prepare_pending_coordinators(Coords, IgnoreNew)
     end;
 prepare_pending_coordinators([], _IgnoreNew) ->
@@ -573,11 +574,7 @@ recover_coordinator(Tid, Etabs) ->
     Store = hd(Etabs),
     CheckNodes = get_elements(nodes,Store),
     TellNodes = CheckNodes -- [node()],
-    case catch arrange(Tid, Store, async) of
-	{'EXIT', Reason} ->
-	    dbg_out("Recovery of coordinator ~p failed:~n", [Tid, Reason]),
-	    Protocol = asym_trans,
-	    tell_outcome(Tid, Protocol, node(), CheckNodes, TellNodes);
+    try arrange(Tid, Store, async) of
 	{_N, Prep} ->
 	    %% Tell the participants about the outcome
 	    Protocol = Prep#prep.protocol,
@@ -596,6 +593,11 @@ recover_coordinator(Tid, Etabs) ->
 		false ->  %% When killed before store havn't been copied to
 		    ok    %% to the new nested trans store.
 	    end
+    catch _:Reason ->
+	    dbg_out("Recovery of coordinator ~p failed:~n",
+		    [Tid, {Reason, erlang:get_stacktrace()}]),
+	    Protocol = asym_trans,
+	    tell_outcome(Tid, Protocol, node(), CheckNodes, TellNodes)
     end,
     erase_ets_tabs(Etabs),
     transaction_terminated(Tid),
@@ -724,33 +726,25 @@ non_transaction(OldState={_,_,Trans}, Fun, Args, ActivityKind, Mod)
 	       _ -> async
 	   end,
     case transaction(OldState, Fun, Args, infinity, Mod, Kind) of
-	{atomic, Res} ->
-	    Res;
-	{aborted,Res} ->
-	    exit(Res)
+	{atomic, Res} -> Res;
+	{aborted,Res} -> exit(Res)
     end;
 non_transaction(OldState, Fun, Args, ActivityKind, Mod) ->
     Id = {ActivityKind, self()},
     NewState = {Mod, Id, non_transaction},
     put(mnesia_activity_state, NewState),
-    %% I Want something uniqe here, references are expensive
-    Ref = mNeSia_nOn_TrAnSacTioN,
-    RefRes = (catch {Ref, apply(Fun, Args)}),
-    case OldState of
-	undefined -> erase(mnesia_activity_state);
-	_ -> put(mnesia_activity_state, OldState)
-    end,
-    case RefRes of
-	{Ref, Res} ->
-	    case Res of
-		{'EXIT', Reason} -> exit(Reason);
-		{aborted, Reason} -> mnesia:abort(Reason);
-		_ -> Res
-	    end;
-	{'EXIT', Reason} ->
-	    exit(Reason);
-	Throw ->
-	    throw(Throw)
+    try apply(Fun, Args) of
+	{'EXIT', Reason} -> exit(Reason);
+	{aborted, Reason} -> mnesia:abort(Reason);
+	Res -> Res
+    catch
+	throw:Throw -> throw(Throw);
+	_:Reason    -> exit(Reason)
+    after
+	case OldState of
+	    undefined -> erase(mnesia_activity_state);
+	    _ -> put(mnesia_activity_state, OldState)
+	end
     end.
 
 transaction(OldTidTs, Fun, Args, Retries, Mod, Type) ->
@@ -810,23 +804,28 @@ insert_objs([], _Tab) ->
     ok.
 
 execute_transaction(Fun, Args, Factor, Retries, Type) ->
-    case catch apply_fun(Fun, Args, Type) of
-	{'EXIT', Reason} ->
-	    check_exit(Fun, Args, Factor, Retries, Reason, Type);
+    try apply_fun(Fun, Args, Type) of
 	{atomic, Value} ->
 	    mnesia_lib:incr_counter(trans_commits),
 	    erase(mnesia_activity_state),
 	    %% no need to clear locks, already done by commit ...
 	    %% Flush any un processed mnesia_down messages we might have
 	    flush_downs(),
-	    catch unlink(whereis(?MODULE)),
+	    ?SAFE(unlink(whereis(?MODULE))),
 	    {atomic, Value};
+	{do_abort, Reason} ->
+	    check_exit(Fun, Args, Factor, Retries, {aborted, Reason}, Type);
 	{nested_atomic, Value} ->
 	    mnesia_lib:incr_counter(trans_commits),
-	    {atomic, Value};
-	Value -> %% User called throw
+	    {atomic, Value}
+    catch throw:Value ->  %% User called throw
 	    Reason = {aborted, {throw, Value}},
-	    return_abort(Fun, Args, Reason)
+	    return_abort(Fun, Args, Reason);
+	  error:Reason ->
+	    ST = erlang:get_stacktrace(),
+	    check_exit(Fun, Args, Factor, Retries, {Reason,ST}, Type);
+	  _:Reason ->
+	    check_exit(Fun, Args, Factor, Retries, Reason, Type)
     end.
 
 apply_fun(Fun, Args, Type) ->
@@ -836,10 +835,10 @@ apply_fun(Fun, Args, Type) ->
             {atomic, Result};
         do_commit_nested ->
             {nested_atomic, Result};
-        {do_abort, {aborted, Reason}} ->
-            {'EXIT', {aborted, Reason}};
-        {do_abort, Reason} ->
-            {'EXIT', {aborted, Reason}}
+	{do_abort, {aborted, Reason}} ->
+	    {do_abort, Reason};
+	{do_abort, _} = Abort ->
+	    Abort
     end.
 
 check_exit(Fun, Args, Factor, Retries, Reason, Type) ->
@@ -943,7 +942,7 @@ return_abort(Fun, Args, Reason)  ->
     OldStore = Ts#tidstore.store,
     Nodes = get_elements(nodes, OldStore),
     intercept_friends(Tid, Ts),
-    catch mnesia_lib:incr_counter(trans_failures),
+    ?SAFE(mnesia_lib:incr_counter(trans_failures)),
     Level = Ts#tidstore.level,
     if
 	Level == 1 ->
@@ -951,7 +950,7 @@ return_abort(Fun, Args, Reason)  ->
 	    ?MODULE ! {delete_transaction, Tid},
 	    erase(mnesia_activity_state),
 	    flush_downs(),
-	    catch unlink(whereis(?MODULE)),
+	    ?SAFE(unlink(whereis(?MODULE))),
 	    {aborted, mnesia_lib:fix_error(Reason)};
 	true ->
 	    %% Nested transaction
@@ -1005,11 +1004,11 @@ erase_activity_id() ->
     erase(mnesia_activity_state).
 
 get_elements(Type,Store) ->
-    case catch ?ets_lookup(Store, Type) of
+    try ?ets_lookup(Store, Type) of
 	[] -> [];
 	[{_,Val}] -> [Val];
-	{'EXIT', _} -> [];
 	Vals -> [Val|| {_,Val} <- Vals]
+    catch error:_ -> []
     end.
 
 opt_propagate_store(_Current, _Obsolete, false) ->
@@ -1032,7 +1031,7 @@ intercept_friends(_Tid, Ts) ->
 
 intercept_best_friend([],_) ->    ok;
 intercept_best_friend([{stop,Fun} | R],Ignore) ->
-    catch Fun(),
+    ?CATCH(Fun()),
     intercept_best_friend(R,Ignore);
 intercept_best_friend([Pid | R],false) ->
     Pid ! {activity_ended, undefined, self()},
@@ -1046,25 +1045,12 @@ wait_for_best_friend(Pid, Timeout) ->
 	{'EXIT', Pid, _} -> ok;
 	{activity_ended, _, Pid} -> ok
     after Timeout ->
-	    case my_process_is_alive(Pid) of
+	    case erlang:is_process_alive(Pid) of
 		true -> wait_for_best_friend(Pid, 1000);
 		false -> ok
 	    end
     end.
 
-my_process_is_alive(Pid) ->
-    case catch erlang:is_process_alive(Pid) of % New BIF in R5
-	true ->
-	    true;
-	false ->
-	    false;
-	{'EXIT', _} -> % Pre R5 backward compatibility
-	    case process_info(Pid, message_queue_len) of
-		undefined -> false;
-		_ -> true
-	    end
-    end.
-
 dirty(Protocol, Item) ->
     {{Tab, Key}, _Val, _Op} = Item,
     Tid = {dirty, self()},
@@ -1144,18 +1130,8 @@ arrange(Tid, Store, Type) ->
 	    async -> #prep{protocol = sym_trans, records = Recs};
 	    sync -> #prep{protocol = sync_sym_trans, records = Recs}
 	end,
-    case catch do_arrange(Tid, Store, Key, Prep, N) of
-	{'EXIT', Reason} ->
-	    dbg_out("do_arrange failed ~p ~p~n", [Reason, Tid]),
-	    case Reason of
-		{aborted, R} ->
-		    mnesia:abort(R);
-		_ ->
-		    mnesia:abort(Reason)
-	    end;
-	{New, Prepared} ->
-	    {New, Prepared#prep{records = reverse(Prepared#prep.records)}}
-    end.
+    {New, Prepared} = do_arrange(Tid, Store, Key, Prep, N),
+    {New, Prepared#prep{records = reverse(Prepared#prep.records)}}.
 
 reverse([]) ->
     [];
@@ -1522,7 +1498,7 @@ multi_commit(asym_trans, Majority, Tid, CR, Store) ->
     Pending = mnesia_checkpoint:tm_enter_pending(Tid, DiscNs, RamNs),
     ?ets_insert(Store, Pending),
     {WaitFor, Local} = ask_commit(asym_trans, Tid, CR2, DiscNs, RamNs),
-    SchemaPrep = (catch mnesia_schema:prepare_commit(Tid, Local, {coord, WaitFor})),
+    SchemaPrep = ?CATCH(mnesia_schema:prepare_commit(Tid, Local, {coord, WaitFor})),
     {Votes, Pids} = rec_all(WaitFor, Tid, do_commit, []),
 
     ?eval_debug_fun({?MODULE, multi_commit_asym_got_votes},
@@ -1589,7 +1565,7 @@ rec_acc_pre_commit([Pid | Tail], Tid, Store, Commit, Res, DumperMode,
 			       GoodPids, SchemaAckPids);
 	{mnesia_down, Node} when Node == node(Pid) ->
 	    AbortRes = {do_abort, {bad_commit, Node}},
-	    catch Pid ! {Tid, AbortRes},  %% Tell him that he has died
+	    ?SAFE(Pid ! {Tid, AbortRes}),  %% Tell him that he has died
 	    rec_acc_pre_commit(Tail, Tid, Store, Commit, AbortRes, DumperMode,
 			       GoodPids, SchemaAckPids)
     end;
@@ -1666,7 +1642,7 @@ commit_participant(Coord, Tid, C = #commit{}, DiscNs, RamNs) ->
 
 commit_participant(Coord, Tid, Bin, C0, DiscNs, _RamNs) ->
     ?eval_debug_fun({?MODULE, commit_participant, pre}, [{tid, Tid}]),
-    case catch mnesia_schema:prepare_commit(Tid, C0, {part, Coord}) of
+    try mnesia_schema:prepare_commit(Tid, C0, {part, Coord}) of
 	{Modified, C = #commit{}, DumperMode} ->
 	    %% If we can not find any local unclear decision
 	    %% we should presume abort at startup recovery
@@ -1742,9 +1718,8 @@ commit_participant(Coord, Tid, Bin, C0, DiscNs, _RamNs) ->
 		    reply(Coord, {do_abort, Tid, self(), {bad_commit,internal}}),
 		    verbose("** ERROR ** commit_participant ~p, got unexpected msg: ~p~n",
 			    [Tid, Msg])
-	    end;
-
-	{'EXIT', Reason} ->
+	    end
+    catch _:Reason ->
 	    ?eval_debug_fun({?MODULE, commit_participant, vote_no},
 			    [{tid, Tid}]),
 	    reply(Coord, {vote_no, Tid, Reason}),
@@ -1790,22 +1765,20 @@ do_commit(Tid, C, DumperMode) ->
 
 %% Update the items
 do_update(Tid, Storage, [Op | Ops], OldRes) ->
-    case catch do_update_op(Tid, Storage, Op) of
-	ok ->
-	    do_update(Tid, Storage, Ops, OldRes);
-	{'EXIT', Reason} ->
+    try do_update_op(Tid, Storage, Op) of
+	ok ->     do_update(Tid, Storage, Ops, OldRes);
+	NewRes -> do_update(Tid, Storage, Ops, NewRes)
+    catch _:Reason ->
 	    %% This may only happen when we recently have
 	    %% deleted our local replica, changed storage_type
 	    %% or transformed table
 	    %% BUGBUG: Updates may be lost if storage_type is changed.
 	    %%         Determine actual storage type and try again.
 	    %% BUGBUG: Updates may be lost if table is transformed.
-
+	    ST = erlang:get_stacktrace(),
 	    verbose("do_update in ~w failed: ~p -> {'EXIT', ~p}~n",
-		    [Tid, Op, Reason]),
-	    do_update(Tid, Storage, Ops, OldRes);
-	NewRes ->
-	    do_update(Tid, Storage, Ops, NewRes)
+		    [Tid, Op, {Reason, ST}]),
+	    do_update(Tid, Storage, Ops, OldRes)
     end;
 do_update(_Tid, _Storage, [], Res) ->
     Res.
@@ -1821,14 +1794,15 @@ do_update_op(Tid, Storage, {{Tab, K}, Val, delete}) ->
 
 do_update_op(Tid, Storage, {{Tab, K}, {RecName, Incr}, update_counter}) ->
     {NewObj, OldObjs} =
-        case catch mnesia_lib:db_update_counter(Storage, Tab, K, Incr) of
-            NewVal when is_integer(NewVal), NewVal >= 0 ->
-                {{RecName, K, NewVal}, [{RecName, K, NewVal - Incr}]};
-            _ when Incr > 0 ->
+        try
+	    NewVal = mnesia_lib:db_update_counter(Storage, Tab, K, Incr),
+	    true = is_integer(NewVal) andalso (NewVal >= 0),
+	    {{RecName, K, NewVal}, [{RecName, K, NewVal - Incr}]}
+	catch error:_ when Incr > 0 ->
                 New = {RecName, K, Incr},
                 mnesia_lib:db_put(Storage, Tab, New),
                 {New, []};
-	    _ ->
+	      error:_ ->
 		Zero = {RecName, K, 0},
 		mnesia_lib:db_put(Storage, Tab, Zero),
 		{Zero, []}
@@ -1913,16 +1887,14 @@ commit_clear([H|R], Tid, Tab, K, Obj)
 
 do_snmp(_, []) ->   ok;
 do_snmp(Tid, [Head | Tail]) ->
-    case catch mnesia_snmp_hook:update(Head) of
-	{'EXIT', Reason} ->
+    try mnesia_snmp_hook:update(Head)
+    catch _:Reason ->
 	    %% This should only happen when we recently have
 	    %% deleted our local replica or recently deattached
 	    %% the snmp table
-
+	    ST = erlang:get_stacktrace(),
 	    verbose("do_snmp in ~w failed: ~p -> {'EXIT', ~p}~n",
-		    [Tid, Head, Reason]);
-	ok ->
-	    ignore
+		    [Tid, Head, {Reason, ST}])
     end,
     do_snmp(Tid, Tail).
 
@@ -2093,7 +2065,7 @@ rec_all([Node | Tail], Tid, Res, Pids) ->
 	    %% Make sure that mnesia_tm knows it has died
 	    %% it may have been restarted
 	    Abort = {do_abort, {bad_commit, Node}},
-	    catch {?MODULE, Node} ! {Tid, Abort},
+	    ?SAFE({?MODULE, Node} ! {Tid, Abort}),
 	    rec_all(Tail, Tid, Abort, Pids)
     end;
 rec_all([], _Tid, Res, Pids) ->
diff --git a/lib/mnesia/test/mnesia_config_backup.erl b/lib/mnesia/test/mnesia_config_backup.erl
index 0916e255e2..a7d8c04a45 100644
--- a/lib/mnesia/test/mnesia_config_backup.erl
+++ b/lib/mnesia/test/mnesia_config_backup.erl
@@ -90,7 +90,8 @@ open_read(Name) ->
 	    List = lists:reverse(ReverseList),
 	    {ok, #backup{name = Name, mode = read, items = List}};
 	{error, Reason} ->
-	    {error, {open_read, Reason}}
+	    %% {error, {open_read, Reason}}
+	    {Reason, error} %% Testing error handling in mnesia
     end.
 
 read(Opaque) when Opaque#backup.mode == read ->
diff --git a/lib/mnesia/test/mnesia_config_test.erl b/lib/mnesia/test/mnesia_config_test.erl
index c495bce63f..a8fb93b28e 100644
--- a/lib/mnesia/test/mnesia_config_test.erl
+++ b/lib/mnesia/test/mnesia_config_test.erl
@@ -37,7 +37,6 @@
 	
 	 dump_log_update_in_place/1,
 	 event_module/1,
-	 ignore_fallback_at_startup/1,
 	 inconsistent_database/1,
 	 max_wait_for_decision/1,
 	 send_compressed/1,
@@ -104,7 +103,7 @@ all() ->
     [access_module, auto_repair, backup_module, debug, dir,
      dump_log_load_regulation, {group, dump_log_thresholds},
      dump_log_update_in_place,
-     event_module, ignore_fallback_at_startup,
+     event_module,
      inconsistent_database, max_wait_for_decision,
      send_compressed, app_test, {group, schema_config},
      unknown_config].
@@ -317,11 +316,17 @@ backup_module(Config) when is_list(Config) ->
     ?match([], mnesia_test_lib:start_mnesia(Nodes, [test_table, test_table2])),
 
     %% Now check newly started tables
-    ?match({atomic, [1,2]}, 
+    ?match({atomic, [1,2]},
 	   mnesia:transaction(fun() -> lists:sort(mnesia:all_keys(test_table)) end)),
-    ?match({atomic, [3,4]}, 
+    ?match({atomic, [3,4]},
 	   mnesia:transaction(fun() -> lists:sort(mnesia:all_keys(test_table2)) end)),
-    
+
+    %% Test some error cases
+    mnesia:set_debug_level(debug),
+    ?match({error, _}, mnesia:install_fallback("NonExisting.FILE")),
+    ?match({error, _}, mnesia:install_fallback(filename:join(mnesia_lib:dir(), "LATEST.LOG"))),
+
+    %% Cleanup
     file:delete(File),
     ?verify_mnesia(Nodes, []),
     ?cleanup(1, Config),
@@ -609,13 +614,6 @@ dump_log_load_regulation(Config) when is_list(Config) ->
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
-ignore_fallback_at_startup(doc) ->
-    ["Start Mnesia without rollback of the database to the fallback. ",
-     "Once Mnesia has been (re)started the installed fallback should",
-     "be handled as a normal active fallback.",
-     "Install a customized event module which disables the termination",
-     "of Mnesia when mnesia_down occurrs with an active fallback."].
-
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 max_wait_for_decision(doc) ->
diff --git a/lib/mnesia/test/mnesia_evil_backup.erl b/lib/mnesia/test/mnesia_evil_backup.erl
index 9e0a8db1ae..68efa3f6ea 100644
--- a/lib/mnesia/test/mnesia_evil_backup.erl
+++ b/lib/mnesia/test/mnesia_evil_backup.erl
@@ -142,6 +142,9 @@ restore_errors(Config) when is_list(Config) ->
     ?match({aborted, {badarg, _}}, mnesia:restore(notAfile, [{skip_tables, xxx}])),
     ?match({aborted, {badarg, _}}, mnesia:restore(notAfile, [{recreate_tables, [schema]}])),
     ?match({aborted, {badarg, _}}, mnesia:restore(notAfile, [{default_op, asdklasd}])),
+    MnesiaDir = mnesia_lib:dir(),
+    ?match({aborted, {not_a_log_file, _}}, mnesia:restore(filename:join(MnesiaDir, "schema.DAT"), [])),
+    ?match({aborted, _}, mnesia:restore(filename:join(MnesiaDir, "LATEST.LOG"), [])),
     ok.
 
 restore_clear(suite) -> [];
@@ -488,6 +491,14 @@ install_fallback(Config) when is_list(Config) ->
     mnesia_test_lib:kill_mnesia([Node1, Node2]),
     timer:sleep(timer:seconds(1)), % Let it die!
 
+    ok = mnesia:start([{ignore_fallback_at_startup, true}]),
+    ok = mnesia:wait_for_tables([Tab, Tab2, Tab3], 10000),
+    ?match([{Tab, 6, test_nok}], mnesia:dirty_read({Tab, 6})),
+    mnesia_test_lib:kill_mnesia([Node1]),
+    application:set_env(mnesia, ignore_fallback_at_startup, false),
+
+    timer:sleep(timer:seconds(1)), % Let it die!
+
     ?match([], mnesia_test_lib:start_mnesia([Node1, Node2], [Tab, Tab2, Tab3])),
 
     % Verify 
@@ -510,6 +521,13 @@ install_fallback(Config) when is_list(Config) ->
     file:delete(File3),
     ?match({error, _}, mnesia:install_fallback(File3)),
     ?match({error, _}, mnesia:install_fallback(File2, mnesia_badmod)),
+    ?match({error, _}, mnesia:install_fallback(File2, {foo, foo})),
+    ?match({error, _}, mnesia:install_fallback(File2, [{foo, foo}])),
+    ?match({error, {badarg, {skip_tables, _}}},
+	   mnesia:install_fallback(File2, [{default_op, skip_tables},
+					   {default_op, keep_tables},
+					   {keep_tables, [Tab, Tab2, Tab3]},
+					   {skip_tables, [foo,{asd}]}])),
     ?match(ok, mnesia:install_fallback(File2, mnesia_backup)),
     ?match(ok, file:delete(File)),
     ?match(ok, file:delete(File2)),
@@ -535,6 +553,7 @@ uninstall_fallback(Config) when is_list(Config) ->
     ?match(ok, mnesia:install_fallback(File2)),
     ?match(ok, file:delete(File)),
     ?match(ok, file:delete(File2)),
+    ?match({error, _}, mnesia:uninstall_fallback([foobar])),
     ?match(ok, mnesia:uninstall_fallback()),
     
     mnesia_test_lib:kill_mnesia([Node1, Node2]),
diff --git a/lib/mnesia/test/mnesia_evil_coverage_test.erl b/lib/mnesia/test/mnesia_evil_coverage_test.erl
index 2d1623b6ca..430c1f1d84 100644
--- a/lib/mnesia/test/mnesia_evil_coverage_test.erl
+++ b/lib/mnesia/test/mnesia_evil_coverage_test.erl
@@ -1338,11 +1338,11 @@ user_properties(Config) when is_list(Config) ->
     ?match([], mnesia:table_info(Tab2, user_properties)),
     ?match([], mnesia:table_info(Tab3, user_properties)),
 
-    ?match({'EXIT', {no_exists, {Tab1, user_property, PropKey}}},
+    ?match({'EXIT', {aborted, {no_exists, {Tab1, user_property, PropKey}}}},
 	   mnesia:read_table_property(Tab1, PropKey)),
-    ?match({'EXIT', {no_exists, {Tab2, user_property, PropKey}}},
+    ?match({'EXIT', {aborted, {no_exists, {Tab2, user_property, PropKey}}}},
 	   mnesia:read_table_property(Tab2, PropKey)),
-    ?match({'EXIT', {no_exists, {Tab3, user_property, PropKey}}},
+    ?match({'EXIT', {aborted, {no_exists, {Tab3, user_property, PropKey}}}},
 	   mnesia:read_table_property(Tab3, PropKey)),
 
     ?match({atomic, ok}, mnesia:write_table_property(Tab1, Prop)),
diff --git a/lib/mnesia/test/mnesia_trans_access_test.erl b/lib/mnesia/test/mnesia_trans_access_test.erl
index 237984978e..f906670296 100644
--- a/lib/mnesia/test/mnesia_trans_access_test.erl
+++ b/lib/mnesia/test/mnesia_trans_access_test.erl
@@ -930,20 +930,20 @@ index_update_bag(Config)when is_list(Config) ->
     [IPos] = mnesia_lib:val({Tab,index}),
     ITab = mnesia_lib:val({index_test,{index, IPos}}),
     io:format("~n Index ~p @ ~p => ~p ~n~n",[IPos,ITab, ets:tab2list(ITab)]),
-    ?match([{2,1},{2,2},{12,1}], ets:tab2list(ITab)),
+    ?match([{2,1},{2,2},{12,1}], lists:keysort(1,ets:tab2list(ITab))),
 
     ?match({atomic, ok}, mnesia:transaction(fun() -> mnesia:write(Rec5) end)),
     {atomic, R60} = mnesia:transaction(fun() -> mnesia:index_read(Tab, 2, ValPos) end),
     ?match([Rec1,Rec5,Rec2], lists:sort(R60)),
 
-    ?match([{2,1},{2,2},{12,1}], ets:tab2list(ITab)),
+    ?match([{2,1},{2,2},{12,1}], lists:keysort(1,ets:tab2list(ITab))),
 
     ?match({atomic, ok}, mnesia:transaction(fun() -> mnesia:delete_object(Rec3) end)),
     {atomic, R61} = mnesia:transaction(fun() -> mnesia:index_read(Tab, 2, ValPos) end),
     ?match([Rec1,Rec5,Rec2], lists:sort(R61)),
     {atomic, R62} = mnesia:transaction(fun() -> mnesia:index_read(Tab,12, ValPos) end),
     ?match([], lists:sort(R62)),
-    ?match([{2,1},{2,2}], ets:tab2list(ITab)),
+    ?match([{2,1},{2,2}], lists:keysort(1,ets:tab2list(ITab))),
 
     %% reset for rest of testcase
     ?match({atomic, ok}, mnesia:transaction(fun() -> mnesia:write(Rec3) end)),
diff --git a/lib/mnesia/vsn.mk b/lib/mnesia/vsn.mk
index b23339e408..79dd495c4b 100644
--- a/lib/mnesia/vsn.mk
+++ b/lib/mnesia/vsn.mk
@@ -1 +1 @@
-MNESIA_VSN = 4.12.5
+MNESIA_VSN = 4.13
diff --git a/lib/observer/doc/src/crashdump_ug.xml b/lib/observer/doc/src/crashdump_ug.xml
index d22fb4cc40..ccd4d8a5b3 100644
--- a/lib/observer/doc/src/crashdump_ug.xml
+++ b/lib/observer/doc/src/crashdump_ug.xml
@@ -228,20 +228,17 @@
     <p>The <em>ETS Tables</em> panel shows all ETS table information
     found in the dump. The 'Id' is the same as the 'Table' field found
     in the raw crashdump, and 'Memory' is the 'Words' field from the
-    raw crashdump translated into bytes. 'Type' is the type of table,
-    and it can be either "hash" or "tree". For tree tables there will
-    be no value in the 'Bucket' field.</p>
+    raw crashdump translated into bytes. For tree tables there will
+    be no value in the 'Objects' field.</p>
+
+    <p>To open the detailed information page about the table, double
+    click or right click the row and select "Properties for
+    'Identifier'".</p>
 
     <p>To open the detailed information page about the owner process
     of an ETS table, right click the row and select "Properties for
     &lt;pid&gt;".</p>
 
-    <p>Double clicking a row in the ETS Tables panel has no
-    effect.</p>
-
-    <p>From the left hand menu you can also select to see internal ETS
-    tables.</p>
-
     <p>
       <seealso marker="erts:crash_dump#ets_tables">
       More...</seealso>
@@ -267,6 +264,22 @@
   </section>
 
   <section>
+    <marker id="schedulers"/>
+    <title>Schedulers</title>
+
+    <p>The <em>Schedulers</em> panel shows all scheduler information
+    found in the dump.</p>
+
+    <p>To open the detailed information page about the scheduler,
+    double click or right click the row and select "Properties for
+    'Identifier'".</p>
+
+    <p>
+      <seealso marker="erts:crash_dump">More...</seealso>
+    </p>
+  </section>
+
+  <section>
     <marker id="funs"/>
     <title>Funs</title>
 
diff --git a/lib/observer/doc/src/observer_ug.xml b/lib/observer/doc/src/observer_ug.xml
index 62f99c5210..fcb42f6c31 100644
--- a/lib/observer/doc/src/observer_ug.xml
+++ b/lib/observer/doc/src/observer_ug.xml
@@ -104,6 +104,29 @@
     <note>
       <p><em>Reds</em> can be presented as accumulated values or as values since last update.</p>
     </note>
+    <p><c>Process info</c> open a detailed information window on the selected process.
+    <taglist>
+      <tag>Process Information</tag>
+      <item>Shows the process information.</item>
+      <tag>Messages</tag>
+      <item>Shows the process messages.</item>
+      <tag>Dictionary</tag>
+      <item>Shows the process dictionary.</item>
+      <tag>Stack Trace</tag>
+      <item>Shows the process current stack trace.</item>
+      <tag>State</tag>
+      <item>Show the process state.</item>
+      <tag>Log</tag>
+      <item>If enabled and available, show the process SASL log entries.</item>
+    </taglist>
+    <note>
+      <p><c>Log</c> needs SASL application to be started on the observed node, with log_mf_h as log handler.
+      The Observed node must be R16B02 or higher.
+      <c>rb</c> server must not be started on the observed node when clicking on menu 'Log/Toggle log view'.
+      <c>rb</c> server will be stopped on the observed node when exiting or changing observed node.
+      </p>
+    </note>
+    </p>
     <p><c>Trace Processes</c> will add the selected process identifiers to the <c>Trace Overview</c> view and the
     node the processes reside on will be added as well.
     <c>Trace Named Processes</c> will add the registered name of processes. This can be useful
diff --git a/lib/observer/src/Makefile b/lib/observer/src/Makefile
index c120865213..8c6606d0a6 100644
--- a/lib/observer/src/Makefile
+++ b/lib/observer/src/Makefile
@@ -51,6 +51,7 @@ MODULES= \
 	cdv_multi_wx \
 	cdv_port_cb \
 	cdv_proc_cb \
+	cdv_sched_cb \
 	cdv_table_wx \
 	cdv_term_cb \
 	cdv_timer_cb \
@@ -61,6 +62,7 @@ MODULES= \
 	etop_txt \
 	observer \
 	observer_app_wx \
+	observer_alloc_wx \
 	observer_html_lib \
 	observer_lib \
 	observer_perf_wx \
diff --git a/lib/observer/src/cdv_bin_cb.erl b/lib/observer/src/cdv_bin_cb.erl
index d5fbceff1e..8b427e92b7 100644
--- a/lib/observer/src/cdv_bin_cb.erl
+++ b/lib/observer/src/cdv_bin_cb.erl
@@ -17,14 +17,14 @@
 %% %CopyrightEnd%
 -module(cdv_bin_cb).
 
--export([get_details/1,
+-export([get_details/2,
 	 detail_pages/0]).
 
 %% Callbacks for cdv_detail_wx
-get_details({Type, {T,Key}}) ->
+get_details({Type, {T,Key}}, _) ->
     [{Key,Term}] = ets:lookup(T,Key),
     {ok,{"Expanded Binary", {Type, Term}, []}};
-get_details({cdv, Id}) ->
+get_details({cdv, Id}, _) ->
     {ok,Bin} = crashdump_viewer:expand_binary(Id),
     {ok,{"Expanded Binary", {cvd, Bin}, []}}.
 
diff --git a/lib/observer/src/cdv_detail_wx.erl b/lib/observer/src/cdv_detail_wx.erl
index dc93507a36..ec0d877d87 100644
--- a/lib/observer/src/cdv_detail_wx.erl
+++ b/lib/observer/src/cdv_detail_wx.erl
@@ -19,7 +19,7 @@
 
 -behaviour(wx_object).
 
--export([start_link/3]).
+-export([start_link/4]).
 
 -export([init/1, handle_event/2, handle_cast/2, terminate/2, code_change/3,
 	 handle_call/3, handle_info/2]).
@@ -38,13 +38,13 @@
 -define(ID_NOTEBOOK, 604).
 
 %% Detail view
-start_link(Id, ParentFrame, Callback) ->
-    wx_object:start_link(?MODULE, [Id, ParentFrame, Callback, self()], []).
+start_link(Id, Data, ParentFrame, Callback) ->
+    wx_object:start_link(?MODULE, [Id, Data, ParentFrame, Callback, self()], []).
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
-init([Id, ParentFrame, Callback, Parent]) ->
-    case Callback:get_details(Id) of
+init([Id, Data, ParentFrame, Callback, Parent]) ->
+    case Callback:get_details(Id, Data) of
 	{ok,Details} ->
 	    init(Id,ParentFrame,Callback,Parent,Details);
 	{yes_no, Info, Fun} ->
diff --git a/lib/observer/src/cdv_dist_cb.erl b/lib/observer/src/cdv_dist_cb.erl
index f7e6c9aded..f45fb1f524 100644
--- a/lib/observer/src/cdv_dist_cb.erl
+++ b/lib/observer/src/cdv_dist_cb.erl
@@ -21,7 +21,7 @@
 	 col_spec/0,
 	 get_info/1,
 	 get_detail_cols/1,
-	 get_details/1,
+	 get_details/2,
 	 detail_pages/0,
 	 format/1]).
 
@@ -55,10 +55,10 @@ get_info(_) ->
     {Info,TW}.
 
 get_detail_cols(_) ->
-    {[?COL_CH,?COL_CTRL],true}.
+    {[{node, ?COL_CH},{port,?COL_CTRL}],true}.
 
 %% Callbacks for cdv_detail_wx
-get_details(Id) ->
+get_details(Id, _) ->
     case crashdump_viewer:node_info(Id) of
 	{ok,Info,TW} ->
 	    Proplist = crashdump_viewer:to_proplist(record_info(fields,nod),Info),
diff --git a/lib/observer/src/cdv_ets_cb.erl b/lib/observer/src/cdv_ets_cb.erl
index 2a5c170e58..371c7f0b32 100644
--- a/lib/observer/src/cdv_ets_cb.erl
+++ b/lib/observer/src/cdv_ets_cb.erl
@@ -20,7 +20,10 @@
 -export([col_to_elem/1,
 	 col_spec/0,
 	 get_info/1,
-	 get_detail_cols/1]).
+	 get_details/2,
+	 get_detail_cols/1,
+	 detail_pages/0
+	]).
 
 -include_lib("wx/include/wx.hrl").
 -include("crashdump_viewer.hrl").
@@ -41,7 +44,7 @@ col_to_elem(?COL_ID)    -> #ets_table.id;
 col_to_elem(?COL_NAME)  -> #ets_table.name;
 col_to_elem(?COL_SLOT)  -> #ets_table.slot;
 col_to_elem(?COL_OWNER) -> #ets_table.pid;
-col_to_elem(?COL_TYPE)  -> #ets_table.type;
+col_to_elem(?COL_TYPE)  -> #ets_table.data_type;
 col_to_elem(?COL_BUCK)  -> #ets_table.buckets;
 col_to_elem(?COL_OBJ)   -> #ets_table.size;
 col_to_elem(?COL_MEM)   -> #ets_table.memory.
@@ -50,18 +53,68 @@ col_spec() ->
     [{"Id",      ?wxLIST_FORMAT_LEFT,   200},
      {"Name",    ?wxLIST_FORMAT_LEFT,   200},
      {"Slot",    ?wxLIST_FORMAT_RIGHT,  50},
-     {"Owner",   ?wxLIST_FORMAT_CENTRE, 90},
-     {"Buckets", ?wxLIST_FORMAT_RIGHT,  50},
-     {"Objects", ?wxLIST_FORMAT_RIGHT,  50},
-     {"Memory",  ?wxLIST_FORMAT_RIGHT,  80},
-     {"Type",    ?wxLIST_FORMAT_LEFT,   50}
+     {"Owner",   ?wxLIST_FORMAT_CENTRE, 120},
+     {"Objects", ?wxLIST_FORMAT_RIGHT,  80},
+     {"Memory",  ?wxLIST_FORMAT_RIGHT,  80}
+%     {"Type",    ?wxLIST_FORMAT_LEFT,   50}
     ].
 
 get_info(Owner) ->
     {ok,Info,TW} = crashdump_viewer:ets_tables(Owner),
     {Info,TW}.
 
+%% Callbacks for cdv_detail_wx
+get_details(_Id, not_found) ->
+    Info = "The table you are searching for could not be found.",
+    {info,Info};
+get_details(Id, Data) ->
+    Proplist = crashdump_viewer:to_proplist(record_info(fields,ets_table),Data),
+    {ok,{"Table:" ++ Id,Proplist,""}}.
+
 get_detail_cols(all) ->
-    {[?COL_OWNER],false};
-get_detail_cols(_) ->
-    {[],false}.
+    {[{ets, ?COL_ID}, {process, ?COL_OWNER}],true};
+get_detail_cols(_W) ->
+    {[],true}.
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%
+
+detail_pages() ->
+    [{"Table Information",   fun init_gen_page/2}].
+
+init_gen_page(Parent, Info0) ->
+    Fields = info_fields(),
+    Details = proplists:get_value(details, Info0),
+    Info = if is_map(Details) -> Info0 ++ maps:to_list(Details);
+	      true -> Info0
+	   end,
+    cdv_info_wx:start_link(Parent,{Fields,Info,[]}).
+
+%%% Internal
+info_fields() ->
+    [{"Overview",
+      [{"Id",             id},
+       {"Name",           name},
+       {"Slot",           slot},
+       {"Owner",          owner},
+       {"Data Structure", data_type}
+      ]},
+     {"Settings",
+      [{"Type",           type},
+       {"Protection",     protection},
+       {"Compressed",     compressed},
+       {"Fixed",          fixed},
+       {"Lock write concurrency", write_c},
+       {"Lock read concurrency", read_c}
+      ]},
+     {"Memory Usage",
+      [{"Buckets",        buckets},
+       {"Size",           size},
+       {"Memory",         memory},
+       {"Min Chain Length",  chain_min},
+       {"Avg Chain Length",  chain_avg},
+       {"Max Chain Length",  chain_max},
+       {"Chain Length Std Dev",  chain_stddev},
+       {"Chain Length Expected Std Dev",  chain_exp_stddev}
+      ]}
+    ].
diff --git a/lib/observer/src/cdv_fun_cb.erl b/lib/observer/src/cdv_fun_cb.erl
index 689ef0e3bb..067377254a 100644
--- a/lib/observer/src/cdv_fun_cb.erl
+++ b/lib/observer/src/cdv_fun_cb.erl
@@ -55,4 +55,4 @@ get_info(_) ->
     {Info,TW}.
 
 get_detail_cols(_) ->
-    {[?COL_MOD],false}.
+    {[{module, ?COL_MOD}],false}.
diff --git a/lib/observer/src/cdv_gen_cb.erl b/lib/observer/src/cdv_gen_cb.erl
index 6be717d76d..aa5e7c5182 100644
--- a/lib/observer/src/cdv_gen_cb.erl
+++ b/lib/observer/src/cdv_gen_cb.erl
@@ -42,4 +42,6 @@ info_fields() ->
        {"Processes",num_procs},
        {"ETS tables",num_ets},
        {"Timers",num_timers},
-       {"Funs",num_fun}]}].
+       {"Funs",num_fun},
+       {"Calling Thread", thread}
+      ]}].
diff --git a/lib/observer/src/cdv_html_wx.erl b/lib/observer/src/cdv_html_wx.erl
index b79c647f63..6d19589f5d 100644
--- a/lib/observer/src/cdv_html_wx.erl
+++ b/lib/observer/src/cdv_html_wx.erl
@@ -126,7 +126,7 @@ expand(Id,Callback,#state{expand_wins=Opened0}=State) ->
     Opened =
 	case lists:keyfind(Id,1,Opened0) of
 	    false ->
-		EW = cdv_detail_wx:start_link(Id,State#state.panel,Callback),
+		EW = cdv_detail_wx:start_link(Id,[],State#state.panel,Callback),
 		wx_object:get_pid(EW) ! active,
 		[{Id,EW}|Opened0];
 	    {_,EW} ->
diff --git a/lib/observer/src/cdv_mod_cb.erl b/lib/observer/src/cdv_mod_cb.erl
index e829ff4fca..8d33f9da9d 100644
--- a/lib/observer/src/cdv_mod_cb.erl
+++ b/lib/observer/src/cdv_mod_cb.erl
@@ -21,7 +21,7 @@
 	 col_spec/0,
 	 get_info/1,
 	 get_detail_cols/1,
-	 get_details/1,
+	 get_details/2,
 	 detail_pages/0,
 	 format/1]).
 
@@ -49,10 +49,10 @@ get_info(_) ->
     {Info,TW}.
 
 get_detail_cols(_) ->
-    {[?COL_ID],true}.
+    {[{module, ?COL_ID}],true}.
 
 %% Callbacks for cdv_detail_wx
-get_details(Id) ->
+get_details(Id, _) ->
     {ok,Info,TW} = crashdump_viewer:loaded_mod_details(Id),
     Proplist = crashdump_viewer:to_proplist(record_info(fields,loaded_mod),Info),
     Title = io_lib:format("~s",[Info#loaded_mod.mod]),
diff --git a/lib/observer/src/cdv_port_cb.erl b/lib/observer/src/cdv_port_cb.erl
index 08488d3e34..409431218b 100644
--- a/lib/observer/src/cdv_port_cb.erl
+++ b/lib/observer/src/cdv_port_cb.erl
@@ -21,7 +21,7 @@
 	 col_spec/0,
 	 get_info/1,
 	 get_detail_cols/1,
-	 get_details/1,
+	 get_details/2,
 	 detail_pages/0,
 	 format/1]).
 
@@ -57,10 +57,10 @@ get_info(_) ->
     {Info,TW}.
 
 get_detail_cols(_) ->
-    {[?COL_ID,?COL_CONN],true}.
+    {[{port, ?COL_ID},{process, ?COL_CONN}],true}.
 
 %% Callbacks for cdv_detail_wx
-get_details(Id) ->
+get_details(Id, _Data) ->
     case crashdump_viewer:port(Id) of
 	{ok,Info,TW} ->
 	    Proplist =
@@ -70,7 +70,7 @@ get_details(Id) ->
 	    Info = "The port you are searching for was residing on "
 		"a remote node. No port information is available. "
 		"Show information about the remote node?",
-	    Fun = fun() -> cdv_virtual_list_wx:start_detail_win(NodeId) end,
+	    Fun = fun() -> cdv_virtual_list_wx:start_detail_win(NodeId, node) end,
 	    {yes_no, Info, Fun};
 	{error,not_found} ->
 	    Info = "The port you are searching for could not be found.",
diff --git a/lib/observer/src/cdv_proc_cb.erl b/lib/observer/src/cdv_proc_cb.erl
index dfc2df9c4c..0af6a9c235 100644
--- a/lib/observer/src/cdv_proc_cb.erl
+++ b/lib/observer/src/cdv_proc_cb.erl
@@ -21,7 +21,7 @@
 	 col_spec/0,
 	 get_info/1,
 	 get_detail_cols/1,
-	 get_details/1,
+	 get_details/2,
 	 detail_pages/0]).
 
 -include_lib("wx/include/wx.hrl").
@@ -57,10 +57,10 @@ get_info(_) ->
     {Info,TW}.
 
 get_detail_cols(_) ->
-    {[?COL_ID],true}.
+    {[{process, ?COL_ID}],true}.
 
 %% Callbacks for cdv_detail_wx
-get_details(Id) ->
+get_details(Id, _) ->
     case crashdump_viewer:proc_details(Id) of
 	{ok,Info,TW} ->
 	    %% The following table is used by observer_html_lib
@@ -76,7 +76,7 @@ get_details(Id) ->
 	    Info = "The process you are searching for was residing on "
 		"a remote node. No process information is available. "
 		"Show information about the remote node?",
-	    Fun = fun() -> cdv_virtual_list_wx:start_detail_win(NodeId) end,
+	    Fun = fun() -> cdv_virtual_list_wx:start_detail_win(NodeId, port) end,
 	    {yes_no, Info, Fun};
 	{error,not_found} ->
 	    Info = "The process you are searching for could not be found.",
@@ -126,10 +126,13 @@ info_fields() ->
        {dynamic,            current_func},
        {"Registered Name",  name},
        {"Status",           state},
+       {"Internal State",   int_state},
        {"Started",          start_time},
        {"Parent",           {click,parent}},
        {"Message Queue Len",msg_q_len},
+       {"Run queue",        run_queue},
        {"Reductions",       reds},
+
        {"Program counter",  prog_count},
        {"Continuation pointer",cp},
        {"Arity",arity}]},
diff --git a/lib/observer/src/cdv_sched_cb.erl b/lib/observer/src/cdv_sched_cb.erl
new file mode 100644
index 0000000000..6ef4886c5e
--- /dev/null
+++ b/lib/observer/src/cdv_sched_cb.erl
@@ -0,0 +1,117 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2013-2014. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+-module(cdv_sched_cb).
+
+-export([col_to_elem/1,
+	 col_spec/0,
+	 get_info/1,
+	 get_details/2,
+	 get_detail_cols/1,
+	 detail_pages/0
+	]).
+
+-include_lib("wx/include/wx.hrl").
+-include("crashdump_viewer.hrl").
+
+%% Columns
+-define(COL_ID,  0).
+-define(COL_PROC,  ?COL_ID+1).
+-define(COL_PORT,  ?COL_PROC+1).
+-define(COL_RQL,   ?COL_PORT+1).
+-define(COL_PQL,   ?COL_RQL+1).
+
+%% Callbacks for cdv_virtual_list_wx
+col_to_elem(id) -> col_to_elem(?COL_ID);
+col_to_elem(?COL_ID)  -> #sched.name;
+col_to_elem(?COL_PROC)  -> #sched.process;
+col_to_elem(?COL_PORT)  -> #sched.port;
+col_to_elem(?COL_RQL)   -> #sched.run_q;
+col_to_elem(?COL_PQL)   -> #sched.port_q.
+
+col_spec() ->
+    [{"Id",                ?wxLIST_FORMAT_RIGHT,   50},
+     {"Current Process",   ?wxLIST_FORMAT_CENTER, 130},
+     {"Current Port",      ?wxLIST_FORMAT_CENTER, 130},
+     {"Run Queue Length",  ?wxLIST_FORMAT_RIGHT,  180},
+     {"Port Queue Length", ?wxLIST_FORMAT_RIGHT,  180}].
+
+get_info(_) ->
+    {ok,Info,TW} = crashdump_viewer:schedulers(),
+    {Info,TW}.
+
+get_details(_Id, not_found) ->
+    Info = "The scheduler you are searching for could not be found.",
+    {info,Info};
+get_details(Id, Data) ->
+    Proplist = crashdump_viewer:to_proplist(record_info(fields,sched),Data),
+    {ok,{"Scheduler: " ++ Id,Proplist,""}}.
+
+get_detail_cols(all) ->
+    {[{sched, ?COL_ID}, {process, ?COL_PROC}, {process, ?COL_PORT}],true};
+get_detail_cols(_) ->
+    {[],false}.
+
+%%%%%%%%%%%%%%%%%%%%%%%%
+
+detail_pages() ->
+    [{"Scheduler Information", fun init_gen_page/2}].
+
+init_gen_page(Parent, Info0) ->
+    Fields = info_fields(),
+    Details = proplists:get_value(details, Info0),
+    Info = if is_map(Details) -> Info0 ++ maps:to_list(Details);
+	      true -> Info0
+	   end,
+    cdv_info_wx:start_link(Parent,{Fields,Info,[]}).
+
+%%% Internal
+info_fields() ->
+    [{"Scheduler Overview",
+      [{"Id",             id},
+       {"Current Process",process},
+       {"Current Port",   port},
+       {"Sleep Info Flags", sleep_info},
+       {"Sleep Aux Work",   sleep_aux}
+      ]},
+     {"Run Queues",
+      [{"Flags",                   runq_flags},
+       {"Priority Max Length",     runq_max},
+       {"Priority High Length",    runq_high},
+       {"Priority Normal Length",  runq_norm},
+       {"Priority Low Length",     runq_low},
+       {"Port Length",     port_q}
+      ]},
+     {"Current Process",
+      [{"State",           currp_state},
+       {"Internal State",  currp_int_state},
+       {"Program Counter", currp_prg_cnt},
+       {"CP",              currp_cp},
+       {"Stack",           {currp_stack, 0}},
+       {"     ",           {currp_stack, 1}},
+       {"     ",           {currp_stack, 2}},
+       {"     ",           {currp_stack, 3}},
+       {"     ",           {currp_stack, 4}},
+       {"     ",           {currp_stack, 5}},
+       {"     ",           {currp_stack, 6}},
+       {"     ",           {currp_stack, 7}},
+       {"     ",           {currp_stack, 8}},
+       {"     ",           {currp_stack, 9}},
+       {"     ",           {currp_stack, 10}},
+       {"     ",           {currp_stack, 11}}
+      ]}
+    ].
diff --git a/lib/observer/src/cdv_term_cb.erl b/lib/observer/src/cdv_term_cb.erl
index 4451045012..6db6d54514 100644
--- a/lib/observer/src/cdv_term_cb.erl
+++ b/lib/observer/src/cdv_term_cb.erl
@@ -17,11 +17,11 @@
 %% %CopyrightEnd%
 -module(cdv_term_cb).
 
--export([get_details/1,
+-export([get_details/2,
 	 detail_pages/0]).
 
 %% Callbacks for cdv_detail_wx
-get_details({Type, {T,Key}}) ->
+get_details({Type, {T,Key}}, _) ->
     [{Key,Term}] = ets:lookup(T,Key),
     {ok,{"Expanded Term", {Type,[Term, T]}, []}}.
 
diff --git a/lib/observer/src/cdv_timer_cb.erl b/lib/observer/src/cdv_timer_cb.erl
index d44592cf18..b4564941ea 100644
--- a/lib/observer/src/cdv_timer_cb.erl
+++ b/lib/observer/src/cdv_timer_cb.erl
@@ -49,6 +49,6 @@ get_info(Owner) ->
     {Info,TW}.
 
 get_detail_cols(all) ->
-    {[?COL_OWNER],false};
+    {[{process, ?COL_OWNER}],false};
 get_detail_cols(_) ->
     {[],false}.
diff --git a/lib/observer/src/cdv_virtual_list_wx.erl b/lib/observer/src/cdv_virtual_list_wx.erl
index bfe115a42e..c0bc7018cb 100644
--- a/lib/observer/src/cdv_virtual_list_wx.erl
+++ b/lib/observer/src/cdv_virtual_list_wx.erl
@@ -19,7 +19,8 @@
 
 -behaviour(wx_object).
 
--export([start_link/2, start_link/3, start_detail_win/1]).
+-export([start_link/2, start_link/3,
+	 start_detail_win/1, start_detail_win/2]).
 
 %% wx_object callbacks
 -export([init/1, handle_info/2, terminate/2, code_change/3, handle_call/3,
@@ -65,22 +66,31 @@ start_link(ParentWin, Callback, Owner) ->
     wx_object:start_link(?MODULE, [ParentWin, Callback, Owner], []).
 
 start_detail_win(Id) ->
-    Callback =
-	case Id of
-	    "<"++_ ->
-		cdv_proc_cb;
-	    "#Port"++_ ->
-		cdv_port_cb;
-	    _ ->
-		case catch list_to_integer(Id) of
-		    NodeId when is_integer(NodeId) ->
-			cdv_dist_cb;
-		    _ ->
-			cdv_mod_cb
-		end
-	end,
-    start_detail_win(Callback,Id).
-start_detail_win(Callback,Id) ->
+    case Id of
+	"<"++_ ->
+	    start_detail_win(Id, process);
+	"#Port"++_ ->
+	    start_detail_win(Id, port);
+	_ ->
+	    io:format("cdv: unknown identifier: ~p~n",[Id]),
+	    ignore
+    end.
+
+start_detail_win(Id, process) ->
+    start_detail_win_2(cdv_proc_cb, Id);
+start_detail_win(Id, port) ->
+    start_detail_win_2(cdv_port_cb, Id);
+start_detail_win(Id, node) ->
+    start_detail_win_2(cdv_dist_cb, Id);
+start_detail_win(Id, module) ->
+    start_detail_win_2(cdv_mod_cb, Id);
+start_detail_win(Id, ets) ->
+    start_detail_win_2(cdv_ets_cb, Id);
+start_detail_win(Id, sched) ->
+    start_detail_win_2(cdv_sched_cb, Id).
+
+
+start_detail_win_2(Callback,Id) ->
     wx_object:cast(Callback,{start_detail_win,Id}).
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -158,15 +168,14 @@ create_list_box(Panel, Holder, Callback, Owner) ->
 do_start_detail_win(undefined, State) ->
     State;
 do_start_detail_win(Id, #state{panel=Panel,detail_wins=Opened,
-			       callback=Callback}=State) ->
+			       holder=Holder,callback=Callback}=State) ->
     NewOpened =
 	case lists:keyfind(Id, 1, Opened) of
 	    false ->
-		case cdv_detail_wx:start_link(Id, Panel, Callback) of
-		    {error, _} ->
-			Opened;
-		    IW ->
-			[{Id, IW} | Opened]
+		Data = call(Holder, {get_data, self(), Id}),
+		case cdv_detail_wx:start_link(Id, Data, Panel, Callback) of
+		    {error, _} -> Opened;
+		    IW -> [{Id, IW} | Opened]
 		end;
 	    {_, IW} ->
 		wxFrame:raise(IW),
@@ -247,8 +256,8 @@ handle_event(#wx{id=MenuId,
 		 event=#wxCommand{type = command_menu_selected}},
 	     #state{menu_items=MenuItems} = State) ->
     case lists:keyfind(MenuId,1,MenuItems) of
-	{MenuId,Id} ->
-	    start_detail_win(Id);
+	{MenuId,Type,Id} ->
+	    start_detail_win(Id, Type);
 	false ->
 	    ok
     end,
@@ -265,7 +274,7 @@ handle_event(#wx{event=#wxList{type=command_list_item_right_click,
     Menu = wxMenu:new(),
     MenuItems =
 	lists:flatmap(
-	  fun(Col) ->
+	  fun({Type, Col}) ->
 		  MenuId = ?ID_DETAILS + Col,
 		  ColText = call(Holder, {get_row, self(), Row, Col}),
 		  case ColText of
@@ -273,14 +282,15 @@ handle_event(#wx{event=#wxList{type=command_list_item_right_click,
 		      _ ->
 			  What =
 			      case catch list_to_integer(ColText) of
-				  NodeId when is_integer(NodeId) ->
+				  NodeId when is_integer(NodeId),
+					      Type =:= node ->
 				      "node " ++ ColText;
 				  _ ->
 				      ColText
 			      end,
 			  Text = "Properties for " ++ What,
 			  wxMenu:append(Menu, MenuId, Text),
-			  [{MenuId,ColText}]
+			  [{MenuId,Type,ColText}]
 		  end
 	  end,
 	  MenuCols),
@@ -300,9 +310,14 @@ handle_event(#wx{event=#wxList{type=command_list_col_click, col=Col}},
 
 handle_event(#wx{event=#wxList{type=command_list_item_activated,
 			       itemIndex=Row}},
-	     #state{holder=Holder} = State) ->
-    Id = call(Holder, {get_row, self(), Row, id}),
-    start_detail_win(Id),
+	     #state{holder=Holder, menu_cols=MenuCols} = State) ->
+    case MenuCols of
+	[{Type, _}|_] ->
+	    Id = call(Holder, {get_row, self(), Row, id}),
+	    start_detail_win(Id, Type);
+	_ ->
+	    ignore
+    end,
     {noreply, State};
 
 handle_event(Event, State) ->
@@ -346,7 +361,7 @@ init_table_holder(Parent, Attrs, Callback, InfoList0) ->
 			 attrs=Attrs,
 			 callback=Callback}).
 
-table_holder(#holder{callback=Callback, attrs=Attrs}=S0) ->
+table_holder(#holder{callback=Callback, attrs=Attrs, info=Info}=S0) ->
     receive
 	_M={get_row, From, Row, Col} ->
 	    %% erlang:display(_M),
@@ -360,6 +375,9 @@ table_holder(#holder{callback=Callback, attrs=Attrs}=S0) ->
 	    %% erlang:display(_M),
 	    State = change_sort(Callback:col_to_elem(Col), S0),
 	    table_holder(State);
+	_M={get_data, From, Id} ->
+	    search_id(From, Id, Callback, Info),
+	    table_holder(S0);
 	stop ->
 	    ok;
 	What ->
@@ -367,6 +385,21 @@ table_holder(#holder{callback=Callback, attrs=Attrs}=S0) ->
 	    table_holder(S0)
     end.
 
+search_id(From, Id, Callback, Info) ->
+    Find = fun(_, RowInfo, _) ->
+		   search_id(Callback, RowInfo, Id)
+	   end,
+    Res = try array:foldl(Find, not_found, Info)
+	  catch Data -> Data end,
+    From ! {self(), Res},
+    ok.
+
+search_id(Callback, RowInfo, Id) ->
+    case observer_lib:to_str(get_cell_data(Callback, id, RowInfo)) of
+	Id   -> throw(RowInfo);
+	_Str -> not_found
+    end.
+
 change_sort(Col, S0=#holder{parent=Parent, info=Info0, sort=Sort0}) ->
     NRows = array:size(Info0),
     InfoList0 = array:to_list(Info0),
diff --git a/lib/observer/src/cdv_wx.erl b/lib/observer/src/cdv_wx.erl
index 26df60b0a6..ec0c652a27 100644
--- a/lib/observer/src/cdv_wx.erl
+++ b/lib/observer/src/cdv_wx.erl
@@ -44,6 +44,7 @@
 -define(PORT_STR,  "Ports").
 -define(ETS_STR,   "ETS Tables").
 -define(TIMER_STR, "Timers").
+-define(SCHEDULER_STR, "Schedulers").
 -define(FUN_STR,   "Funs").
 -define(ATOM_STR,  "Atoms").
 -define(DIST_STR,  "Nodes").
@@ -66,6 +67,7 @@
 	 port_panel,
 	 ets_panel,
 	 timer_panel,
+	 sched_panel,
 	 fun_panel,
 	 atom_panel,
 	 dist_panel,
@@ -171,6 +173,9 @@ setup(#state{frame=Frame, notebook=Notebook}=State) ->
     %% Timer Panel
     TimerPanel = add_page(Notebook, ?TIMER_STR, cdv_virtual_list_wx,cdv_timer_cb),
 
+    %% Scheduler Panel
+    SchedPanel = add_page(Notebook, ?SCHEDULER_STR, cdv_virtual_list_wx, cdv_sched_cb),
+
     %% Fun Panel
     FunPanel = add_page(Notebook, ?FUN_STR, cdv_virtual_list_wx, cdv_fun_cb),
 
@@ -202,6 +207,7 @@ setup(#state{frame=Frame, notebook=Notebook}=State) ->
 			port_panel = PortPanel,
 			ets_panel = EtsPanel,
 			timer_panel = TimerPanel,
+			sched_panel = SchedPanel,
 			fun_panel = FunPanel,
 			atom_panel = AtomPanel,
 			dist_panel = DistPanel,
@@ -335,7 +341,8 @@ check_page_title(Notebook) ->
 get_active_pid(#state{notebook=Notebook, gen_panel=Gen, pro_panel=Pro,
 		      port_panel=Ports, ets_panel=Ets, timer_panel=Timers,
 		      fun_panel=Funs, atom_panel=Atoms, dist_panel=Dist,
-		      mod_panel=Mods, mem_panel=Mem, int_panel=Int
+		      mod_panel=Mods, mem_panel=Mem, int_panel=Int,
+		      sched_panel=Sched
 		     }) ->
     Panel = case check_page_title(Notebook) of
 		?GEN_STR -> Gen;
@@ -343,6 +350,7 @@ get_active_pid(#state{notebook=Notebook, gen_panel=Gen, pro_panel=Pro,
 		?PORT_STR -> Ports;
 		?ETS_STR -> Ets;
 		?TIMER_STR -> Timers;
+		?SCHEDULER_STR -> Sched;
 		?FUN_STR -> Funs;
 		?ATOM_STR -> Atoms;
 		?DIST_STR -> Dist;
diff --git a/lib/observer/src/crashdump_viewer.erl b/lib/observer/src/crashdump_viewer.erl
index 99329b94e2..007fc74279 100644
--- a/lib/observer/src/crashdump_viewer.erl
+++ b/lib/observer/src/crashdump_viewer.erl
@@ -63,6 +63,7 @@
 	 allocator_info/0,
 	 hash_tables/0,
 	 index_tables/0,
+	 schedulers/0,
 	 expand_binary/1]).
 
 %% Library function
@@ -114,6 +115,7 @@
 -define(proc_heap,proc_heap).
 -define(proc_messages,proc_messages).
 -define(proc_stack,proc_stack).
+-define(scheduler,scheduler).
 -define(timer,timer).
 -define(visible_node,visible_node).
 
@@ -267,6 +269,8 @@ hash_tables() ->
     call(hash_tables).
 index_tables() ->
     call(index_tables).
+schedulers() ->
+    call(schedulers).
 
 %%%-----------------------------------------------------------------
 %%% Called when a link to a process (Pid) is clicked.
@@ -320,6 +324,8 @@ handle_call(general_info,_From,State=#state{file=File}) ->
 		      "Some information might be missing."];
 	     false -> []
 	 end,
+    ets:insert(cdv_reg_proc_table,
+	       {cdv_dump_node_name,GenInfo#general_info.node_name}),
     {reply,{ok,GenInfo,TW},State#state{wordsize=WS, num_atoms=NumAtoms}};
 handle_call({expand_binary,{Offset,Size,Pos}},_From,State=#state{file=File}) ->
     Fd = open(File),
@@ -429,7 +435,11 @@ handle_call(hash_tables,_From,State=#state{file=File}) ->
 handle_call(index_tables,_From,State=#state{file=File}) ->
     IndexTables=index_tables(File),
     TW = truncated_warning([?hash_table,?index_table]),
-    {reply,{ok,IndexTables,TW},State}.
+    {reply,{ok,IndexTables,TW},State};
+handle_call(schedulers,_From,State=#state{file=File}) ->
+    Schedulers=schedulers(File),
+    TW = truncated_warning([?scheduler]),
+    {reply,{ok,Schedulers,TW},State}.
 
 
 
@@ -675,9 +685,11 @@ skip(Fd,<<>>) ->
 
 
 val(Fd) ->
+    val(Fd, "-1").
+val(Fd, NoExist) ->
     case get_rest_of_line(Fd) of
-	{eof,[]} -> "-1";
-	[] -> "-1";
+	{eof,[]} -> NoExist;
+	[] -> NoExist;
 	{eof,Val} -> Val;
 	Val -> Val
     end.
@@ -926,7 +938,7 @@ general_info(File) ->
 		N;
 	    [] ->
 		case lookup_index(?no_distribution) of
-		    [_] -> "nonode@nohost";
+		    [_] -> "'nonode@nohost'";
 		    [] -> "unknown"
 		end
 	end,
@@ -965,6 +977,8 @@ get_general_info(Fd,GenInfo) ->
 	    get_general_info(Fd,GenInfo#general_info{taints=Val});
 	"Atoms" ->
 	    get_general_info(Fd,GenInfo#general_info{num_atoms=val(Fd)});
+	"Calling Thread" ->
+	    get_general_info(Fd,GenInfo#general_info{thread=val(Fd)});
 	"=" ++ _next_tag ->
 	    GenInfo;
 	Other ->
@@ -1131,6 +1145,10 @@ all_procinfo(Fd,Fun,Proc,WS,LineHead) ->
 	"arity = " ++ Arity ->
 	    %%! Temporary workaround
 	    get_procinfo(Fd,Fun,Proc#proc{arity=Arity--"\r\n"},WS);
+	"Run queue" ->
+	    get_procinfo(Fd,Fun,Proc#proc{run_queue=val(Fd)},WS);
+	"Internal State" ->
+	    get_procinfo(Fd,Fun,Proc#proc{int_state=val(Fd)},WS);
 	"=" ++ _next_tag ->
 	    Proc;
 	Other ->
@@ -1165,6 +1183,19 @@ parse_pid(Str) ->
     {Pid,Rest} = parse_link(Str,[]),
     {{Pid,Pid},Rest}.
 
+parse_monitor("{"++Str) ->
+    %% Named process
+    {Name,Node,Rest1} = parse_name_node(Str,[]),
+    Pid = get_pid_from_name(Name,Node),
+    case parse_link(string:strip(Rest1,left,$,),[]) of
+	{Ref,"}"++Rest2} ->
+	    %% Bug in break.c - prints an extra "}" for remote
+	    %% nodes... thus the strip
+	    {{Pid,"{"++Name++","++Node++"} ("++Ref++")"},
+	     string:strip(Rest2,left,$})};
+	{Ref,[]} ->
+	    {{Pid,"{"++Name++","++Node++"} ("++Ref++")"},[]}
+    end;
 parse_monitor(Str) ->
     case parse_link(Str,[]) of
 	{Pid,","++Rest1} ->
@@ -1186,23 +1217,58 @@ parse_link([],Acc) ->
     %% truncated
     {lists:reverse(Acc),[]}.
 
+parse_name_node(","++Rest,Name) ->
+    parse_name_node(Rest,Name,[]);
+parse_name_node([H|T],Name) ->
+    parse_name_node(T,[H|Name]);
+parse_name_node([],Name) ->
+    %% truncated
+    {lists:reverse(Name),[],[]}.
+
+parse_name_node("}"++Rest,Name,Node) ->
+    {lists:reverse(Name),lists:reverse(Node),Rest};
+parse_name_node([H|T],Name,Node) ->
+    parse_name_node(T,Name,[H|Node]);
+parse_name_node([],Name,Node) ->
+    %% truncated
+    {lists:reverse(Name),lists:reverse(Node),[]}.
+
+get_pid_from_name(Name,Node) ->
+    case ets:lookup(cdv_reg_proc_table,cdv_dump_node_name) of
+	[{_,Node}] ->
+	    case ets:lookup(cdv_reg_proc_table,Name) of
+		[{_,Pid}] when is_pid(Pid) ->
+		    pid_to_list(Pid);
+		_ ->
+		    "<unkonwn_pid>"
+	    end;
+	_ ->
+	    "<unknown_pid_other_node>"
+    end.
+
 maybe_other_node(Id) ->
     Channel = 
 	case split($.,Id) of
 	    {"<" ++ N, _Rest} ->
 		N;
 	    {"#Port<" ++ N, _Rest} ->
-		N
+		N;
+	    {_, []} ->
+		not_found
 	end,
+    maybe_other_node2(Channel).
+
+maybe_other_node2(not_found) -> not_found;
+maybe_other_node2(Channel) ->
     Ms = ets:fun2ms(
-	   fun({{Tag,Start},Ch}) when Tag=:=?visible_node, Ch=:=Channel -> 
+	   fun({{Tag,Start},Ch}) when Tag=:=?visible_node, Ch=:=Channel ->
 		   {"Visible Node",Start};
 	      ({{Tag,Start},Ch}) when Tag=:=?hidden_node, Ch=:=Channel ->
 		   {"Hidden Node",Start};
-	      ({{Tag,Start},Ch}) when Tag=:=?not_connected, Ch=:=Channel -> 
+	      ({{Tag,Start},Ch}) when Tag=:=?not_connected, Ch=:=Channel ->
 		   {"Not Connected Node",Start}
 	   end),
-    
+
     case ets:select(cdv_dump_index_table,Ms) of
 	[] ->
 	    not_found;
@@ -1457,7 +1523,7 @@ get_ets_tables(File,Pid,WS) ->
 	       end,
     lookup_and_parse_index(File,{?ets,Pid},ParseFun,"ets").
 
-get_etsinfo(Fd,EtsTable,WS) ->
+get_etsinfo(Fd,EtsTable = #ets_table{details=Ds},WS) ->
     case line_head(Fd) of
 	"Slot" ->
 	    get_etsinfo(Fd,EtsTable#ets_table{slot=list_to_integer(val(Fd))},WS);
@@ -1467,7 +1533,7 @@ get_etsinfo(Fd,EtsTable,WS) ->
 	    get_etsinfo(Fd,EtsTable#ets_table{name=val(Fd)},WS);
 	"Ordered set (AVL tree), Elements" ->
 	    skip_rest_of_line(Fd),
-	    get_etsinfo(Fd,EtsTable#ets_table{type="tree",buckets="-"},WS);
+	    get_etsinfo(Fd,EtsTable#ets_table{data_type="tree"},WS);
 	"Buckets" ->
 	    %% A bug in erl_db_hash.c prints a space after the buckets
 	    %% - need to strip the string to make list_to_integer/1 happy.
@@ -1482,9 +1548,42 @@ get_etsinfo(Fd,EtsTable,WS) ->
 		    -1 -> -1; % probably truncated
 		    _ -> Words * WS
 		end,
-	    get_etsinfo(Fd,EtsTable#ets_table{memory=Bytes},WS);
+	    get_etsinfo(Fd,EtsTable#ets_table{memory={bytes,Bytes}},WS);
 	"=" ++ _next_tag ->
 	    EtsTable;
+	"Chain Length Min" ->
+	    Val = val(Fd),
+	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{chain_min=>Val}},WS);
+	"Chain Length Avg" ->
+	    Val = try list_to_float(string:strip(val(Fd))) catch _:_ -> "-" end,
+	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{chain_avg=>Val}},WS);
+	"Chain Length Max" ->
+	    Val = val(Fd),
+	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{chain_max=>Val}},WS);
+	"Chain Length Std Dev" ->
+	    Val = val(Fd),
+	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{chain_stddev=>Val}},WS);
+	"Chain Length Expected Std Dev" ->
+	    Val = val(Fd),
+	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{chain_exp_stddev=>Val}},WS);
+	"Fixed" ->
+	    Val = val(Fd),
+	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{fixed=>Val}},WS);
+	"Type" ->
+	    Val = val(Fd),
+	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{data_type=>Val}},WS);
+	"Protection" ->
+	    Val = val(Fd),
+	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{protection=>Val}},WS);
+	"Compressed" ->
+	    Val = val(Fd),
+	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{compressed=>Val}},WS);
+	"Write Concurrency" ->
+	    Val = val(Fd),
+	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{write_c=>Val}},WS);
+	"Read Concurrency" ->
+	    Val = val(Fd),
+	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{read_c=>Val}},WS);
 	Other ->
 	    unexpected(Fd,Other,"ETS info"),
 	    EtsTable
@@ -2224,6 +2323,89 @@ get_indextableinfo1(Fd,IndexTable) ->
 	    IndexTable
     end.
 
+
+%%-----------------------------------------------------------------
+%% Page with scheduler table information
+schedulers(File) ->
+    case lookup_index(?scheduler) of
+	[] ->
+	    [];
+	Schedulers ->
+	    Fd = open(File),
+	    R = lists:map(fun({Name,Start}) ->
+				  get_schedulerinfo(Fd,Name,Start)
+			  end,
+			  Schedulers),
+	    close(Fd),
+	    R
+    end.
+
+get_schedulerinfo(Fd,Name,Start) ->
+    pos_bof(Fd,Start),
+    get_schedulerinfo1(Fd,#sched{name=Name}).
+
+get_schedulerinfo1(Fd,Sched=#sched{details=Ds}) ->
+    case line_head(Fd) of
+	"Current Process" ->
+	    get_schedulerinfo1(Fd,Sched#sched{process=val(Fd, "None")});
+	"Current Port" ->
+	    get_schedulerinfo1(Fd,Sched#sched{port=val(Fd, "None")});
+	"Run Queue Max Length" ->
+	    RQMax = list_to_integer(val(Fd)),
+	    RQ = RQMax + Sched#sched.run_q,
+	    get_schedulerinfo1(Fd,Sched#sched{run_q=RQ, details=Ds#{runq_max=>RQMax}});
+	"Run Queue High Length" ->
+	    RQHigh = list_to_integer(val(Fd)),
+	    RQ = RQHigh + Sched#sched.run_q,
+	    get_schedulerinfo1(Fd,Sched#sched{run_q=RQ, details=Ds#{runq_high=>RQHigh}});
+	"Run Queue Normal Length" ->
+	    RQNorm = list_to_integer(val(Fd)),
+	    RQ = RQNorm + Sched#sched.run_q,
+	    get_schedulerinfo1(Fd,Sched#sched{run_q=RQ, details=Ds#{runq_norm=>RQNorm}});
+	"Run Queue Low Length" ->
+	    RQLow = list_to_integer(val(Fd)),
+	    RQ = RQLow + Sched#sched.run_q,
+	    get_schedulerinfo1(Fd,Sched#sched{run_q=RQ, details=Ds#{runq_low=>RQLow}});
+	"Run Queue Port Length" ->
+	    RQ = list_to_integer(val(Fd)),
+	    get_schedulerinfo1(Fd,Sched#sched{port_q=RQ});
+
+	"Scheduler Sleep Info Flags" ->
+	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{sleep_info=>val(Fd, "None")}});
+	"Scheduler Sleep Info Aux Work" ->
+	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{sleep_aux=>val(Fd, "None")}});
+
+	"Run Queue Flags" ->
+	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{runq_flags=>val(Fd, "None")}});
+
+	"Current Process State" ->
+	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{currp_state=>val(Fd)}});
+	"Current Process Internal State" ->
+	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{currp_int_state=>val(Fd)}});
+	"Current Process Program counter" ->
+	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{currp_prg_cnt=>val(Fd)}});
+	"Current Process CP" ->
+	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{currp_cp=>val(Fd)}});
+	"Current Process Limited Stack Trace" ->
+	    %% If there shall be last in scheduler information block
+	    Sched#sched{details=get_limited_stack(Fd, 0, Ds)};
+	"=" ++ _next_tag ->
+	    Sched;
+	Other ->
+	    unexpected(Fd,Other,"scheduler information"),
+	    Sched
+    end.
+
+get_limited_stack(Fd, N, Ds) ->
+    case val(Fd) of
+	Addr = "0x" ++ _ ->
+	    get_limited_stack(Fd, N+1, Ds#{{currp_stack, N} => Addr});
+	"=" ++ _next_tag ->
+	    Ds;
+	Line ->
+	    get_limited_stack(Fd, N+1, Ds#{{currp_stack, N} => Line})
+    end.
+
 %%%-----------------------------------------------------------------
 %%% Parse memory in crashdump version 0.1 and newer
 %%%
@@ -2526,6 +2708,7 @@ tag_to_atom("proc_dictionary") -> ?proc_dictionary;
 tag_to_atom("proc_heap") -> ?proc_heap;
 tag_to_atom("proc_messages") -> ?proc_messages;
 tag_to_atom("proc_stack") -> ?proc_stack;
+tag_to_atom("scheduler") -> ?scheduler;
 tag_to_atom("timer") -> ?timer;
 tag_to_atom("visible_node") -> ?visible_node;
 tag_to_atom(UnknownTag) ->
diff --git a/lib/observer/src/crashdump_viewer.hrl b/lib/observer/src/crashdump_viewer.hrl
index 0e2eba6dee..9515e74114 100644
--- a/lib/observer/src/crashdump_viewer.hrl
+++ b/lib/observer/src/crashdump_viewer.hrl
@@ -36,7 +36,9 @@
 	 num_fun,
 	 mem_tot,
 	 mem_max,
-	 instr_info}).
+	 instr_info,
+	 thread
+	}).
 
 -record(proc,
 	%% Initial data according to the follwoing:
@@ -85,7 +87,10 @@
 	 old_heap_top,
 	 old_heap_end,
 	 memory,
-	 stack_dump}).
+	 stack_dump,
+	 run_queue=?unknown,
+	 int_state
+	}).
 
 -record(port,
 	{id,
@@ -96,15 +101,28 @@
 	 monitors,
 	 controls}).
 
+-record(sched,
+	{name,
+	 process,
+	 port,
+	 run_q=0,
+	 port_q=0,
+	 details=#{}
+	}).
+
+
+
 -record(ets_table,
 	{pid,
 	 slot,
 	 id,
 	 name,
-	 type="hash",
-	 buckets,
+	 data_type="hash",
+	 buckets="-",
 	 size,
-	 memory}).
+	 memory,
+	 details= #{}
+	}).
 
 -record(timer,
 	{pid,
diff --git a/lib/observer/src/observer.app.src b/lib/observer/src/observer.app.src
index 97a54cd6f9..c12353f9e1 100644
--- a/lib/observer/src/observer.app.src
+++ b/lib/observer/src/observer.app.src
@@ -37,6 +37,7 @@
 	       cdv_proc_cb,
 	       cdv_table_wx,
 	       cdv_term_cb,
+	       cdv_sched_cb,
 	       cdv_timer_cb,
 	       cdv_virtual_list_wx,
 	       cdv_wx,
@@ -44,6 +45,7 @@
 	       etop_tr,
 	       etop_txt,
 	       observer,
+	       observer_alloc_wx,
 	       observer_app_wx,
 	       observer_html_lib,
 	       observer_lib,
@@ -63,6 +65,6 @@
     {env, []},
     {runtime_dependencies, ["wx-1.2","stdlib-2.0","runtime_tools-1.8.14",
 			    "kernel-3.0","inets-5.10","et-1.5",
-			    "erts-6.0"]}]}.
+			    "erts-7.0"]}]}.
 
 
diff --git a/lib/observer/src/observer_alloc_wx.erl b/lib/observer/src/observer_alloc_wx.erl
new file mode 100644
index 0000000000..0c4bc9ee4b
--- /dev/null
+++ b/lib/observer/src/observer_alloc_wx.erl
@@ -0,0 +1,256 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+-module(observer_alloc_wx).
+
+-export([start_link/2]).
+
+%% wx_object callbacks
+-export([init/1, handle_info/2, terminate/2, code_change/3, handle_call/3,
+	 handle_event/2, handle_sync_event/3, handle_cast/2]).
+
+-behaviour(wx_object).
+-include_lib("wx/include/wx.hrl").
+-include("observer_defs.hrl").
+
+-record(state,
+	{
+	  offset = 0.0,
+	  active = false,
+	  parent,
+	  windows,
+	  data = {0, queue:new()},
+	  panel,
+	  paint,
+	  appmon,
+	  async
+	}).
+
+-define(ALLOC_W,  1).
+-define(UTIL_W,  2).
+
+start_link(Notebook, Parent) ->
+    wx_object:start_link(?MODULE, [Notebook, Parent], []).
+
+init([Notebook, Parent]) ->
+    try
+	Panel = wxPanel:new(Notebook),
+	Main  = wxBoxSizer:new(?wxVERTICAL),
+	Style = ?wxFULL_REPAINT_ON_RESIZE bor ?wxCLIP_CHILDREN,
+	Carrier = wxPanel:new(Panel, [{winid, ?ALLOC_W}, {style,Style}]),
+	Utilz = wxPanel:new(Panel, [{winid, ?UTIL_W}, {style,Style}]),
+	BorderFlags = ?wxLEFT bor ?wxRIGHT,
+	wxSizer:add(Main, Carrier, [{flag, ?wxEXPAND bor BorderFlags bor ?wxTOP},
+				    {proportion, 1}, {border, 5}]),
+
+	wxSizer:add(Main, Utilz, [{flag, ?wxEXPAND bor BorderFlags},
+				  {proportion, 1}, {border, 5}]),
+
+	MemWin = {MemPanel,_} = create_mem_info(Panel),
+	wxSizer:add(Main, MemPanel, [{flag, ?wxEXPAND bor BorderFlags bor ?wxBOTTOM},
+				     {proportion, 1}, {border, 5}]),
+	wxWindow:setSizer(Panel, Main),
+
+	PaintInfo = observer_perf_wx:setup_graph_drawing([Carrier, Utilz]),
+	{Panel, #state{parent=Parent,
+		       panel =Panel,
+		       windows = {Carrier, Utilz, MemWin},
+		       paint=PaintInfo}
+	}
+    catch _:Err ->
+	    io:format("~p crashed ~p: ~p~n",[?MODULE, Err, erlang:get_stacktrace()]),
+	    {stop, Err}
+    end.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+handle_event(#wx{event=#wxCommand{type=command_menu_selected}},
+	     State = #state{}) ->
+    {noreply, State};
+
+handle_event(Event, _State) ->
+    error({unhandled_event, Event}).
+
+%%%%%%%%%%
+handle_sync_event(#wx{obj=Panel, event = #wxPaint{}},_,
+		  #state{active=Active, offset=Offset, paint=Paint,
+			 windows=Windows, data=Data}) ->
+    %% Sigh workaround bug on MacOSX (Id in paint event is always 0)
+    Id = if Panel =:= element(?ALLOC_W, Windows)  -> alloc;
+	    Panel =:= element(?UTIL_W, Windows)  -> utilz
+	 end,
+    observer_perf_wx:refresh_panel(Panel, Id, Offset, Data, Active, Paint),
+    ok.
+%%%%%%%%%%
+handle_call(Event, From, _State) ->
+    error({unhandled_call, Event, From}).
+
+handle_cast(Event, _State) ->
+    error({unhandled_cast, Event}).
+%%%%%%%%%%
+
+handle_info({Key, {promise_reply, {badrpc, _}}}, #state{async=Key} = State) ->
+    {noreply, State#state{active=false, appmon=undefined}};
+
+handle_info({Key, {promise_reply, SysInfo}}, #state{async=Key, data=Data} = State) ->
+    Info = alloc_info(SysInfo),
+    update_alloc(State, Info),
+    {noreply, State#state{offset=0.0, data = add_data(Info, Data), async=undefined}};
+
+handle_info({refresh, Seq, Freq, Node}, #state{panel=Panel, appmon=Node, async=Key} = State) ->
+    wxWindow:refresh(Panel),
+    Next = Seq+1,
+    if
+	Next > Freq, Key =:= undefined ->
+	    erlang:send_after(trunc(1000 / Freq), self(), {refresh, 1, Freq, Node}),
+	    Req = rpc:async_call(Node, observer_backend, sys_info, []),
+	    {noreply, State#state{offset=Seq/Freq, async=Req}};
+       true ->
+	    erlang:send_after(trunc(1000 / Freq), self(), {refresh, Next, Freq, Node}),
+	    {noreply, State#state{offset=Seq/Freq}}
+    end;
+handle_info({refresh, _Seq, _Freq, _Node}, State) ->
+    {noreply, State};
+
+handle_info({active, Node}, State = #state{parent=Parent, panel=Panel, appmon=Old}) ->
+    create_menus(Parent, []),
+    try
+	Node = Old,
+	wxWindow:refresh(Panel),
+	{noreply, State#state{active=true}}
+    catch _:_ ->
+	    SysInfo = observer_wx:try_rpc(Node, observer_backend, sys_info, []),
+	    Info = alloc_info(SysInfo),
+	    Freq = 6,
+	    erlang:send_after(trunc(1000 / Freq), self(), {refresh, 1, Freq, Node}),
+	    wxWindow:refresh(Panel),
+	    {noreply, State#state{active=true, appmon=Node, offset=0.0,
+				  data = add_data(Info, {0, queue:new()})}}
+    end;
+
+handle_info(not_active, State = #state{appmon=_Pid}) ->
+    {noreply, State#state{active=false}};
+
+handle_info({'EXIT', Old, _}, State = #state{appmon=Old}) ->
+    {noreply, State#state{active=false, appmon=undefined}};
+
+handle_info(_Event, State) ->
+    %% io:format("~p:~p: ~p~n",[?MODULE,?LINE,_Event]),
+    {noreply, State}.
+
+terminate(_Event, #state{}) ->
+    ok.
+code_change(_, _, State) ->
+    State.
+
+%%%%%%%%%%
+
+add_data(Stats, {N, Q}) when N > 60 ->
+    {N, queue:drop(queue:in(Stats, Q))};
+add_data(Stats, {N, Q}) ->
+    {N+1, queue:in(Stats, Q)}.
+
+update_alloc(#state{windows={_, _, {_, Grid}}}, Fields) ->
+    Max = wxListCtrl:getItemCount(Grid),
+    Update = fun({Name, BS, CS}, Row) ->
+		     (Row >= Max) andalso wxListCtrl:insertItem(Grid, Row, ""),
+		     wxListCtrl:setItem(Grid, Row, 0, observer_lib:to_str(Name)),
+		     wxListCtrl:setItem(Grid, Row, 1, observer_lib:to_str(BS div 1024)),
+		     wxListCtrl:setItem(Grid, Row, 2, observer_lib:to_str(CS div 1024)),
+		     Row + 1
+	     end,
+    lists:foldl(Update, 0, Fields),
+    Fields.
+
+alloc_info(SysInfo) ->
+    AllocInfo = proplists:get_value(alloc_info, SysInfo, []),
+    alloc_info(AllocInfo, [], 0, 0, true).
+
+alloc_info([{Type,Instances}|Allocators],TypeAcc,TotalBS,TotalCS,IncludeTotal) ->
+    {BS,CS,NewTotalBS,NewTotalCS,NewIncludeTotal} =
+	sum_alloc_instances(Instances,0,0,TotalBS,TotalCS),
+    alloc_info(Allocators,[{Type,BS,CS}|TypeAcc],NewTotalBS,NewTotalCS,
+	       IncludeTotal andalso NewIncludeTotal);
+alloc_info([],TypeAcc,TotalBS,TotalCS,IncludeTotal) ->
+    Types = [X || X={_,BS,CS} <- TypeAcc, (BS>0 orelse CS>0)],
+    case IncludeTotal of
+	true ->
+	    [{total,TotalBS,TotalCS} | lists:reverse(Types)];
+	false ->
+	    lists:reverse(Types)
+    end.
+
+sum_alloc_instances(false,BS,CS,TotalBS,TotalCS) ->
+    {BS,CS,TotalBS,TotalCS,false};
+sum_alloc_instances([{_,_,Data}|Instances],BS,CS,TotalBS,TotalCS) ->
+    {NewBS,NewCS,NewTotalBS,NewTotalCS} =
+	sum_alloc_one_instance(Data,BS,CS,TotalBS,TotalCS),
+    sum_alloc_instances(Instances,NewBS,NewCS,NewTotalBS,NewTotalCS);
+sum_alloc_instances([],BS,CS,TotalBS,TotalCS) ->
+    {BS,CS,TotalBS,TotalCS,true}.
+
+sum_alloc_one_instance([{sbmbcs,[{blocks_size,BS,_,_},{carriers_size,CS,_,_}]}|
+			Rest],OldBS,OldCS,TotalBS,TotalCS) ->
+    sum_alloc_one_instance(Rest,OldBS+BS,OldCS+CS,TotalBS,TotalCS);
+sum_alloc_one_instance([{_,[{blocks_size,BS,_,_},{carriers_size,CS,_,_}]}|
+			Rest],OldBS,OldCS,TotalBS,TotalCS) ->
+    sum_alloc_one_instance(Rest,OldBS+BS,OldCS+CS,TotalBS+BS,TotalCS+CS);
+sum_alloc_one_instance([{_,[{blocks_size,BS},{carriers_size,CS}]}|
+			Rest],OldBS,OldCS,TotalBS,TotalCS) ->
+    sum_alloc_one_instance(Rest,OldBS+BS,OldCS+CS,TotalBS+BS,TotalCS+CS);
+sum_alloc_one_instance([_|Rest],BS,CS,TotalBS,TotalCS) ->
+    sum_alloc_one_instance(Rest,BS,CS,TotalBS,TotalCS);
+sum_alloc_one_instance([],BS,CS,TotalBS,TotalCS) ->
+    {BS,CS,TotalBS,TotalCS}.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+create_mem_info(Parent) ->
+    Panel = wxPanel:new(Parent),
+    wxWindow:setBackgroundColour(Panel, {255,255,255}),
+    Style = ?wxLC_REPORT bor ?wxLC_SINGLE_SEL bor ?wxLC_HRULES bor ?wxLC_VRULES,
+    Grid = wxListCtrl:new(Panel, [{style, Style}]),
+    Li = wxListItem:new(),
+    AddListEntry = fun({Name, Align, DefSize}, Col) ->
+			   wxListItem:setText(Li, Name),
+			   wxListItem:setAlign(Li, Align),
+			   wxListCtrl:insertColumn(Grid, Col, Li),
+			   wxListCtrl:setColumnWidth(Grid, Col, DefSize),
+			   Col + 1
+		   end,
+    ListItems = [{"Allocator Type",  ?wxLIST_FORMAT_LEFT,  200},
+		 {"Block size (kB)",  ?wxLIST_FORMAT_RIGHT, 150},
+		 {"Carrier size (kB)",?wxLIST_FORMAT_RIGHT, 150}],
+    lists:foldl(AddListEntry, 0, ListItems),
+    wxListItem:destroy(Li),
+
+    Sizer = wxBoxSizer:new(?wxVERTICAL),
+    wxSizer:add(Sizer, Grid, [{flag, ?wxEXPAND bor ?wxLEFT bor ?wxRIGHT},
+			      {border, 5}, {proportion, 1}]),
+    wxWindow:setSizerAndFit(Panel, Sizer),
+    {Panel, Grid}.
+
+
+create_menus(Parent, _) ->
+    MenuEntries =
+	[{"File",
+	  [
+	  ]}
+	],
+    observer_wx:create_menus(Parent, MenuEntries).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/lib/observer/src/observer_html_lib.erl b/lib/observer/src/observer_html_lib.erl
index c279218707..df0bc05312 100644
--- a/lib/observer/src/observer_html_lib.erl
+++ b/lib/observer/src/observer_html_lib.erl
@@ -60,7 +60,8 @@ expandable_term_body(Heading,[],_Tab) ->
 	 "StackDump"  -> "No stack dump was found";
 	 "Dictionary" -> "No dictionary was found";
 	 "ProcState"  -> "Information could not be retrieved,"
-			     " system messages may not be handled by this process."
+			     " system messages may not be handled by this process.";
+         "SaslLog"    -> "No log entry was found"
      end];
 expandable_term_body(Heading,Expanded,Tab) ->
     Attr = "BORDER=0 CELLPADDING=0 CELLSPACING=1 WIDTH=100%",
@@ -102,7 +103,10 @@ expandable_term_body(Heading,Expanded,Tab) ->
 		    element(1, lists:mapfoldl(fun(Entry, Even) ->
 						      {proc_state(Tab, Entry,Even),
 						       not Even}
-					      end, true, Expanded))]);
+					      end, true, Expanded))]);         
+     "SaslLog"  ->
+             table(Attr,
+                   [tr("BGCOLOR=white",[td("ALIGN=left", pre(href_proc_port(Expanded)))])]) ;
 	 _ ->
 	     table(Attr,
 		   [tr(
@@ -151,7 +155,7 @@ all_or_expand(_Tab,Term,Str,false)
     href_proc_port(lists:flatten(Str));
 all_or_expand(Tab,Term,Preview,true)
   when not is_binary(Term) ->
-    Key = {Key1,Key2,Key3} = now(),
+    Key = {Key1,Key2,Key3} = {erlang:unique_integer([positive]),1,2},
     ets:insert(Tab,{Key,Term}),
     [href_proc_port(lists:flatten(Preview), false), $\n,
      href("TARGET=\"expanded\"",
diff --git a/lib/observer/src/observer_lib.erl b/lib/observer/src/observer_lib.erl
index 9592ab5977..40a3eb8831 100644
--- a/lib/observer/src/observer_lib.erl
+++ b/lib/observer/src/observer_lib.erl
@@ -173,12 +173,17 @@ fill_info([{Str,SubStructure}|Rest], Data) when is_list(SubStructure) ->
     [{Str, fill_info(SubStructure, Data)}|fill_info(Rest,Data)];
 fill_info([{Str,Attrib,SubStructure}|Rest], Data) ->
     [{Str, Attrib, fill_info(SubStructure, Data)}|fill_info(Rest,Data)];
+fill_info([{Str, Key = {K,N}}|Rest], Data) when is_atom(K), is_integer(N) ->
+    case get_value(Key, Data) of
+	undefined -> [undefined | fill_info(Rest, Data)];
+	Value -> [{Str, Value} | fill_info(Rest, Data)]
+    end;
 fill_info([], _) -> [].
 
-get_value(Key, Data) when is_atom(Key) ->
-    proplists:get_value(Key,Data);
 get_value(Fun, Data) when is_function(Fun) ->
-    Fun(Data).
+    Fun(Data);
+get_value(Key, Data) ->
+    proplists:get_value(Key,Data).
 
 update_info([Fields|Fs], [{_Header, SubStructure}| Rest]) ->
     update_info2(Fields, SubStructure),
@@ -269,6 +274,8 @@ to_str(Pid) when is_pid(Pid) ->
     pid_to_list(Pid);
 to_str(No) when is_integer(No) ->
     integer_to_list(No);
+to_str(Float) when is_float(Float) ->
+    io_lib:format("~.3f", [Float]);
 to_str(Term) ->
     io_lib:format("~w", [Term]).
 
diff --git a/lib/observer/src/observer_perf_wx.erl b/lib/observer/src/observer_perf_wx.erl
index 8173349ed7..4df9218087 100644
--- a/lib/observer/src/observer_perf_wx.erl
+++ b/lib/observer/src/observer_perf_wx.erl
@@ -24,7 +24,8 @@
 	 handle_event/2, handle_sync_event/3, handle_cast/2]).
 
 %% Drawing wrappers for DC and GC areas
--export([haveGC/0,
+-export([setup_graph_drawing/1, refresh_panel/6,
+	 haveGC/0,
 	 setPen/2, setFont/3, setBrush/2,
 	 strokeLine/5, strokeLines/2, drawRoundedRectangle/6,
 	 drawText/4, getTextExtent/2]).
@@ -42,13 +43,12 @@
 	  data = {0, queue:new()},
 	  panel,
 	  paint,
-	  appmon,
-	  usegc = false
+	  appmon
 	}).
 
 -define(wxGC, wxGraphicsContext).
 
--record(paint, {font, small, pen, pen2, pens}).
+-record(paint, {font, small, pen, pen2, pens, usegc = false}).
 
 -define(RQ_W,  1).
 -define(MEM_W, 2).
@@ -63,14 +63,11 @@ init([Notebook, Parent]) ->
     Main  = wxBoxSizer:new(?wxVERTICAL),
     Style = ?wxFULL_REPAINT_ON_RESIZE bor ?wxCLIP_CHILDREN,
     CPU = wxPanel:new(Panel, [{winid, ?RQ_W}, {style,Style}]),
-    wxWindow:setBackgroundColour(CPU, ?wxWHITE),
     wxSizer:add(Main, CPU, [{flag, ?wxEXPAND bor ?wxALL},
 				 {proportion, 1}, {border, 5}]),
     MemIO = wxBoxSizer:new(?wxHORIZONTAL),
     MEM = wxPanel:new(Panel, [{winid, ?MEM_W}, {style,Style}]),
-    wxWindow:setBackgroundColour(MEM, ?wxWHITE),
     IO  = wxPanel:new(Panel, [{winid, ?IO_W}, {style,Style}]),
-    wxWindow:setBackgroundColour(IO, ?wxWHITE),
     wxSizer:add(MemIO, MEM, [{flag, ?wxEXPAND bor ?wxLEFT},
 			     {proportion, 1}, {border, 5}]),
     wxSizer:add(MemIO, IO,  [{flag, ?wxEXPAND bor ?wxLEFT bor ?wxRIGHT},
@@ -79,53 +76,56 @@ init([Notebook, Parent]) ->
 			      {proportion, 1}, {border, 5}]),
     wxWindow:setSizer(Panel, Main),
 
-    wxPanel:connect(CPU, paint, [callback]),
-    wxPanel:connect(IO, paint, [callback]),
-    wxPanel:connect(MEM, paint, [callback]),
-    case os:type() of
-	{win32, _} -> %% Ignore erase on windows
-	    wxPanel:connect(CPU, erase_background, [{callback, fun(_,_) -> ok end}]),
-	    wxPanel:connect(IO,  erase_background, [{callback, fun(_,_) -> ok end}]),
-	    wxPanel:connect(MEM, erase_background, [{callback, fun(_,_) -> ok end}]);
-	_ -> ok
-    end,
+    PaintInfo = setup_graph_drawing([CPU, MEM, IO]),
 
+    process_flag(trap_exit, true),
+    {Panel, #state{parent=Parent,
+		   panel =Panel,
+		   windows = {CPU, MEM, IO},
+		   paint=PaintInfo
+		  }}
+   catch _:Err ->
+	   io:format("~p crashed ~p: ~p~n",[?MODULE, Err, erlang:get_stacktrace()]),
+	   {stop, Err}
+   end.
+
+setup_graph_drawing(Panels) ->
+    IsWindows = element(1, os:type()) =:= win32,
+    IgnoreCB = {callback, fun(_,_) -> ok end},
+    Do = fun(Panel) ->
+		 wxWindow:setBackgroundColour(Panel, ?wxWHITE),
+		 wxPanel:connect(Panel, paint, [callback]),
+		 IsWindows andalso
+		     wxPanel:connect(Panel, erase_background, [IgnoreCB])
+	 end,
+    _ = [Do(Panel) || Panel <- Panels],
     UseGC = haveGC(),
     Version28 = ?wxMAJOR_VERSION =:= 2 andalso ?wxMINOR_VERSION =:= 8,
     {Font, SmallFont}
-	= case os:type() of
-	      {unix, _} when UseGC, Version28 ->
+	= if UseGC, Version28 ->
 		  %% Def font is really small when using Graphics contexts in 2.8
 		  %% Hardcode it
 		  F = wxFont:new(12,?wxFONTFAMILY_DECORATIVE,?wxFONTSTYLE_NORMAL,?wxFONTWEIGHT_BOLD),
 		  SF = wxFont:new(10, ?wxFONTFAMILY_DECORATIVE, ?wxFONTSTYLE_NORMAL, ?wxFONTWEIGHT_NORMAL),
 		  {F, SF};
-	      _ ->
+	     true ->
 		  DefFont = wxSystemSettings:getFont(?wxSYS_DEFAULT_GUI_FONT),
 		  DefSize = wxFont:getPointSize(DefFont),
 		  DefFamily = wxFont:getFamily(DefFont),
-		  F = wxFont:new(DefSize, DefFamily, ?wxFONTSTYLE_NORMAL, ?wxFONTWEIGHT_BOLD),
-		  SF = wxFont:new(DefSize-1, DefFamily, ?wxFONTSTYLE_NORMAL, ?wxFONTWEIGHT_NORMAL),
+		  F = wxFont:new(DefSize-1, DefFamily, ?wxFONTSTYLE_NORMAL, ?wxFONTWEIGHT_BOLD),
+		  SF = wxFont:new(DefSize-2, DefFamily, ?wxFONTSTYLE_NORMAL, ?wxFONTWEIGHT_NORMAL),
 		  {F, SF}
 	  end,
     BlackPen = wxPen:new({0,0,0}, [{width, 2}]),
-    Pens = [wxPen:new(Col, [{width, 2}]) || Col <- tuple_to_list(colors())],
-    process_flag(trap_exit, true),
-    {Panel, #state{parent=Parent,
-		   panel =Panel,
-		   windows = {CPU, MEM, IO},
-		   usegc=UseGC,
-		   paint=#paint{font = Font,
-				small = SmallFont,
-				pen  = ?wxGREY_PEN,
-				pen2 = BlackPen,
-				pens = list_to_tuple(Pens)
-			       }
-		  }}
-   catch _:Err ->
-	   io:format("~p crashed ~p: ~p~n",[?MODULE, Err, erlang:get_stacktrace()]),
-	   {stop, Err}
-   end.
+    Pens = [wxPen:new(Col, [{width, 3}]) || Col <- tuple_to_list(colors())],
+    #paint{usegc = UseGC,
+	   font  = Font,
+	   small = SmallFont,
+	   pen   = ?wxGREY_PEN,
+	   pen2  = BlackPen,
+	   pens  = list_to_tuple(Pens)
+	  }.
+
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
@@ -139,21 +139,25 @@ handle_event(Event, _State) ->
 %%%%%%%%%%
 handle_sync_event(#wx{obj=Panel, event = #wxPaint{}},_,
 		  #state{active=Active, offset=Offset, paint=Paint,
-			 windows=Windows, data=Data, usegc=UseGC}) ->
-    %% PaintDC must be created in a callback to work on windows.
+			 windows=Windows, data=Data}) ->
     %% Sigh workaround bug on MacOSX (Id in paint event is always 0)
     %% Panel = element(Id, Windows),
-    Id = if Panel =:= element(?RQ_W, Windows)  -> ?RQ_W;
-	    Panel =:= element(?MEM_W, Windows) -> ?MEM_W;
-	    Panel =:= element(?IO_W, Windows)  -> ?IO_W
+    Id = if Panel =:= element(?RQ_W, Windows)  -> runq;
+	    Panel =:= element(?MEM_W, Windows) -> memory;
+	    Panel =:= element(?IO_W, Windows)  -> io
 	 end,
-    IsWindows = element(1, os:type()) =:= win32,
 
-    DC = if IsWindows -> 
+    refresh_panel(Panel, Id, Offset, Data, Active, Paint),
+    ok.
+
+refresh_panel(Panel, Id, Offset, Data, Active, #paint{usegc=UseGC} = Paint) ->
+    %% PaintDC must be created in a callback to work on windows.
+    IsWindows = element(1, os:type()) =:= win32,
+    DC = if IsWindows ->
 		 %% Ugly hack to aviod flickering on windows, works on windows only
 		 %% But the other platforms are doublebuffered by default
 		 wx:typeCast(wxBufferedPaintDC:new(Panel), wxPaintDC);
-	    true -> 
+	    true ->
 		 wxPaintDC:new(Panel)
 	 end,
     IsWindows andalso wxDC:clear(DC),
@@ -167,8 +171,9 @@ handle_sync_event(#wx{obj=Panel, event = #wxPaint{}},_,
 	    io:format("Internal error ~p ~p~n",[Err, erlang:get_stacktrace()])
     end,
     UseGC andalso ?wxGC:destroy(GC),
-    wxPaintDC:destroy(DC),
-    ok.
+    wxPaintDC:destroy(DC).
+
+
 %%%%%%%%%%
 handle_call(Event, From, _State) ->
     error({unhandled_call, Event, From}).
@@ -247,10 +252,10 @@ create_menus(Parent, _) ->
     observer_wx:create_menus(Parent, MenuEntries).
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-collect_data(?RQ_W, {N, Q}) ->
+collect_data(runq, {N, Q}) ->
     case queue:to_list(Q) of
-	[] ->  {0, 0, []};
-	[_] ->  {0, 0, []};
+	[] ->  {0, 0, [], []};
+	[_] ->  {0, 0, [], []};
 	[{stats, _Ver, Init0, _IO, _Mem}|Data0] ->
 	    Init = lists:sort(Init0),
 	    [_|Data=[First|_]] = lists:foldl(fun({stats, _, T0, _, _}, [Prev|Acc]) ->
@@ -258,25 +263,46 @@ collect_data(?RQ_W, {N, Q}) ->
 					   Delta = calc_delta(TN, Prev),
 					   [TN, list_to_tuple(Delta)|Acc]
 				   end, [Init], Data0),
-	    {N, lmax(Data), lists:reverse([First|Data])}
+	    NoGraphs = tuple_size(First),
+	    {N, lmax(Data), lists:reverse([First|Data]), lists:seq(1, NoGraphs)}
     end;
-collect_data(?MEM_W, {N, Q}) ->
+collect_data(memory, {N, Q}) ->
     MemT = mem_types(),
     Data = [list_to_tuple([Value || {Type,Value} <- MemInfo,
 				    lists:member(Type, MemT)])
 	    || {stats, _Ver, _RQ, _IO, MemInfo} <- queue:to_list(Q)],
-    {N, lmax(Data), Data};
-collect_data(?IO_W, {N, Q}) ->
+    {N, lmax(Data), Data,  MemT};
+collect_data(io, {N, Q}) ->
     case queue:to_list(Q) of
-	[] ->  {0, 0, []};
-	[_] -> {0, 0, []};
+	[] ->  {0, 0, [], []};
+	[_] -> {0, 0, [], []};
 	[{stats, _Ver, _RQ, {{_,In0}, {_,Out0}}, _Mem}|Data0] ->
 	    [_,_|Data=[First|_]] =
 		lists:foldl(fun({stats, _, _, {{_,In}, {_,Out}}, _}, [PIn,Pout|Acc]) ->
 				    [In,Out,{In-PIn,Out-Pout}|Acc]
 			    end, [In0,Out0], Data0),
-	    {N, lmax(Data), lists:reverse([First|Data])}
-    end.
+	    {N, lmax(Data), lists:reverse([First|Data]), [input, output]}
+    end;
+collect_data(alloc, {N, Q}) ->
+    List = queue:to_list(Q),
+    Data = [list_to_tuple([Carrier || {_Type,_Block,Carrier} <- MemInfo])
+	    || MemInfo <- List],
+    Info = case List of  %% Varies depending on erlang build config/platform
+	       [MInfo|_] -> [Type || {Type, _, _} <- MInfo];
+	       _ -> []
+	   end,
+    {N, lmax(Data), Data, Info};
+
+collect_data(utilz, {N, Q}) ->
+    List = queue:to_list(Q),
+    Data = [list_to_tuple([round(100*Block/Carrier) || {_Type,Block,Carrier} <- MemInfo])
+	    || MemInfo <- List],
+    Info = case List of  %% Varies depending on erlang build config/platform
+	       [MInfo|_] -> [Type || {Type, _, _} <- MInfo];
+	       _ -> []
+	   end,
+    {N, lmax(Data), Data, Info}.
+
 
 mem_types() ->
     [total, processes, atom, binary, code, ets].
@@ -299,14 +325,14 @@ draw(Offset, Id, DC, Panel, Paint=#paint{pens=Pens, small=Small}, Data, Active)
     %% This can be optimized a lot by collecting data once
     %% and draw to memory and then blit memory and only draw new entries in new memory
     %% area.  Hmm now rewritten to use ?wxGC I don't now if it is feasable.
-    {Len, Max0, Hs} = collect_data(Id, Data),
-    Max = calc_max(Max0),
-    NoGraphs = try tuple_size(hd(Hs)) catch _:_ -> 0 end,
+    {Len, Max0, Hs, Info} = collect_data(Id, Data),
+    {Max,_,_} = MaxDisp = calc_max(Id, Max0),
     Size = wxWindow:getClientSize(Panel),
-    {X0,Y0,WS,HS} = draw_borders(Id, NoGraphs, DC, Size, Max, Paint),
+    {X0,Y0,WS,HS, DrawBs} = draw_borders(Id, Info, DC, Size, MaxDisp, Paint),
     Last = 60*WS+X0-1,
     Start = max(61-Len, 0)*WS+X0 - Offset*WS,
     Samples = length(Hs),
+    NoGraphs = try tuple_size(hd(Hs)) catch _:_ -> 0 end,
     case Active andalso Samples > 1 andalso NoGraphs > 0 of
 	true ->
 	    Draw = fun(N) ->
@@ -315,14 +341,16 @@ draw(Offset, Id, DC, Panel, Paint=#paint{pens=Pens, small=Small}, Data, Active)
 			   strokeLines(DC, Lines),
 			   N+1
 		   end,
-	    [Draw(I) || I <- lists:seq(NoGraphs, 1, -1)];
+	    [Draw(I) || I <- lists:seq(NoGraphs, 1, -1)],
+	    DrawBs();
 	false ->
-	    Info = case Active andalso Samples =< 1 of
-		       true -> "Waiting on data";
+	    DrawBs(),
+	    Text = case Active andalso Samples =< 1 of
+		       true  -> "Waiting for data";
 		       false -> "Information not available"
 		   end,
 	    setFont(DC, Small, {0,0,0}),
-	    drawText(DC, Info, X0 + 100, element(2,Size) div 2)
+	    drawText(DC, Text, X0 + 100, element(2,Size) div 2)
     end,
     ok.
 
@@ -397,9 +425,8 @@ spline_tan(Y0, Y1, Y2, Y3) ->
 -define(BW, 5).
 -define(BH, 5).
 
-draw_borders(Type, NoGraphs, DC, {W,H}, Max,
+draw_borders(Type, Info, DC, {W,H}, {Max, Unit, MaxUnit},
 	     #paint{pen=Pen, pen2=Pen2, font=Font, small=Small}) ->
-    {Unit, MaxUnit} = bytes(Type, Max),
     Str1 = observer_lib:to_str(MaxUnit),
     Str2 = observer_lib:to_str(MaxUnit div 2),
     Str3 = observer_lib:to_str(0),
@@ -410,10 +437,10 @@ draw_borders(Type, NoGraphs, DC, {W,H}, Max,
 
     GraphX0 = ?BW+TW+?BW,
     GraphX1 = W-?BW*4,
-    TopTextX = ?BW+TW+?BW,
-    MaxTextY = ?BH+TH+?BH,
+    TopTextX = ?BW*3+TW,
+    MaxTextY = TH+?BH,
     BottomTextY = H-?BH-TH,
-    SecondsY = BottomTextY - ?BH - TH,
+    SecondsY = BottomTextY - TH,
     GraphY0 = MaxTextY + (TH / 2),
     GraphY1 = SecondsY - ?BH,
     GraphW = GraphX1-GraphX0-1,
@@ -447,17 +474,7 @@ draw_borders(Type, NoGraphs, DC, {W,H}, Max,
     strokeLine(DC, GraphX0-3, GraphY50, GraphX1, GraphY50),
     strokeLine(DC, GraphX0-3, GraphY75, GraphX1, GraphY75),
 
-    setPen(DC, Pen2),
-    strokeLines(DC, [{GraphX0, GraphY0-1}, {GraphX0, GraphY1+1},
-		     {GraphX1, GraphY1+1}, {GraphX1, GraphY0-1},
-		     {GraphX0, GraphY0-1}]),
-
     setFont(DC, Font, {0,0,0}),
-    case Type of
-	?RQ_W ->  drawText(DC, "Scheduler Utilization (%) ", TopTextX,?BH);
-	?MEM_W -> drawText(DC, "Memory Usage " ++ Unit, TopTextX,?BH);
-	?IO_W ->  drawText(DC, "IO Usage " ++ Unit, TopTextX,?BH)
-    end,
 
     Text = fun(X,Y, Str, PenId) ->
 		   if PenId == 0 ->
@@ -468,32 +485,65 @@ draw_borders(Type, NoGraphs, DC, {W,H}, Max,
 		   end,
 		   drawText(DC, Str, X, Y),
 		   {StrW, _} = getTextExtent(DC, Str),
-		   StrW + X + SpaceW
+		   StrW + X + ?BW*2
 	   end,
+
     case Type of
-	?RQ_W ->
-	    TN0 = Text(?BW, BottomTextY, "Scheduler: ", 0),
+	runq ->
+	    drawText(DC, "Scheduler Utilization (%) ", TopTextX, ?BH),
+	    TN0 = Text(TopTextX, BottomTextY, "Scheduler: ", 0),
 	    lists:foldl(fun(Id, Pos0) ->
 				Text(Pos0, BottomTextY, integer_to_list(Id), Id)
-			end, TN0, lists:seq(1, NoGraphs));
-	?MEM_W ->
+			end, TN0, Info);
+	memory ->
+	    drawText(DC, "Memory Usage " ++ Unit, TopTextX,?BH),
+	    lists:foldl(fun(MType, {PenId, Pos0}) ->
+				Str = to_string(MType),
+				Pos = Text(Pos0, BottomTextY, Str, PenId),
+				{PenId+1, Pos}
+			end, {1, TopTextX}, Info);
+	io ->
+	    drawText(DC, "IO Usage " ++ Unit, TopTextX,?BH),
+	    lists:foldl(fun(MType, {PenId, Pos0}) ->
+				Str = to_string(MType),
+				Pos = Text(Pos0, BottomTextY, Str, PenId),
+				{PenId+1, Pos}
+			end, {1, TopTextX}, Info);
+	alloc ->
+	    drawText(DC, "Carrier Size " ++ Unit, TopTextX,?BH);
+	utilz ->
+	    drawText(DC, "Carrier Utilization (%)" ++ Unit, TopTextX,?BH),
 	    lists:foldl(fun(MType, {PenId, Pos0}) ->
-				Str = uppercase(atom_to_list(MType)),
+				Str = to_string(MType),
 				Pos = Text(Pos0, BottomTextY, Str, PenId),
 				{PenId+1, Pos}
-			end, {1, ?BW}, mem_types());
-	?IO_W ->
-	    TN0 = Text(?BW, BottomTextY, "Input", 1),
-	    Text(TN0, BottomTextY, "Output", 2)
+			end, {1, TopTextX}, Info)
     end,
-    {GraphX0+1, GraphY1, ScaleW, ScaleH}.
+    DrawBorder = fun() ->
+			 setPen(DC, Pen2),
+			 strokeLines(DC, [{GraphX0, GraphY0-1}, {GraphX0, GraphY1+1},
+					  {GraphX1, GraphY1+1}, {GraphX1, GraphY0-1},
+					  {GraphX0, GraphY0-1}])
+		 end,
+    {GraphX0+1, GraphY1, ScaleW, ScaleH, DrawBorder}.
+
+to_string(Atom) ->
+    Name = atom_to_list(Atom),
+    case lists:reverse(Name) of
+	"colla_" ++ Rev ->
+	    uppercase(lists:reverse(Rev));
+	_ ->
+	    uppercase(Name)
+    end.
 
 uppercase([C|Rest]) ->
     [C-$a+$A|Rest].
 
-calc_max(Max) when Max < 10 -> 10;
-calc_max(Max) -> calc_max1(Max).
+calc_max(Type, Max) ->
+    bytes(Type, Max).
 
+calc_max1(Max) when Max < 10 ->
+    10;
 calc_max1(Max) ->
     case Max div 10 of
 	X when X < 10 ->
@@ -506,23 +556,36 @@ calc_max1(Max) ->
 	    10*calc_max1(X)
     end.
 
-bytes(?RQ_W, Val) -> {"", Val};
+bytes(runq, Val) ->
+    Upper = calc_max1(Val),
+    {Upper, "", Upper};
+bytes(utilz, Val) ->
+    Upper = calc_max1(Val),
+    {Upper, "", Upper};
 bytes(_, B) ->
     KB = B div 1024,
     MB = KB div 1024,
     GB = MB div 1024,
     if
-	GB > 10 -> {"(GB)", GB};
-	MB > 10 -> {"(MB)", MB};
-	KB >  0 -> {"(KB)", KB};
-	true    -> {"(B)", B}
+	GB > 10 ->
+	    Upper = calc_max1(GB),
+	    {Upper*1024*1024*1024, "(GB)", Upper};
+	MB > 10 ->
+	    Upper = calc_max1(MB),
+	    {Upper*1024*1024, "(MB)", Upper};
+	KB >  0 ->
+	    Upper = calc_max1(KB),
+	    {Upper*1024, "(KB)", Upper};
+	true  ->
+	    Upper = calc_max1(B),
+	    {Upper, "(B)", Upper}
     end.
 
 colors() ->
-    {{200, 50, 50}, {50, 200, 50}, {50, 50, 200},
-     {255, 110, 0}, {50, 200, 200}, {200, 50, 200},
-     {240, 200, 80}, {140, 2, 140},
-     {100, 200, 240}, {100, 240, 100}
+    {{240, 100, 100}, {100, 240, 100}, {100, 100, 240},
+     {220, 220, 80}, {100, 240, 240}, {240, 100, 240},
+     {100, 25, 25}, {25, 100, 25}, {25, 25, 100},
+     {120, 120, 0}, {25, 100, 100}, {100, 50, 100}
     }.
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/lib/observer/src/observer_pro_wx.erl b/lib/observer/src/observer_pro_wx.erl
index 0be8c18893..026693ff56 100644
--- a/lib/observer/src/observer_pro_wx.erl
+++ b/lib/observer/src/observer_pro_wx.erl
@@ -578,7 +578,7 @@ get_row(From, Row, pid, Info) ->
 	  end,
     From ! {self(), Pid};
 get_row(From, Row, Col, Info) ->
-    Data = case Row > array:size(Info) of
+    Data = case Row >= array:size(Info) of
 	       true ->
 		   "";
 	       false ->
diff --git a/lib/observer/src/observer_procinfo.erl b/lib/observer/src/observer_procinfo.erl
index 8e8a37fc93..d724cd9e96 100644
--- a/lib/observer/src/observer_procinfo.erl
+++ b/lib/observer/src/observer_procinfo.erl
@@ -43,6 +43,8 @@
 
 -record(worker, {panel, callback}).
 
+-record(io, {rdata=""}).
+
 start(Process, ParentFrame, Parent) ->
     wx_object:start_link(?MODULE, [Process, ParentFrame, Parent], []).
 
@@ -69,6 +71,10 @@ init([Pid, ParentFrame, Parent]) ->
 	DictPage    = init_panel(Notebook, "Dictionary", [Pid,Table], fun init_dict_page/3),
 	StackPage   = init_panel(Notebook, "Stack Trace", [Pid], fun init_stack_page/2),
 	StatePage   = init_panel(Notebook, "State", [Pid,Table], fun init_state_page/3),
+        Ps = case gen_server:call(observer, log_status) of
+		 true  -> [init_panel(Notebook, "Log", [Pid,Table], fun init_log_page/3)];
+		 false -> []
+	     end,
 
 	wxFrame:connect(Frame, close_window),
 	wxMenu:connect(Frame, command_menu_selected),
@@ -78,7 +84,7 @@ init([Pid, ParentFrame, Parent]) ->
 		       pid=Pid,
 		       frame=Frame,
 		       notebook=Notebook,
-		       pages=[ProcessPage,MessagePage,DictPage,StackPage,StatePage],
+		       pages=[ProcessPage,MessagePage,DictPage,StackPage,StatePage|Ps],
 		       expand_table=Table
 		      }}
     catch error:{badrpc, _} ->
@@ -144,7 +150,7 @@ handle_event(#wx{event=#wxHtmlLink{linkInfo=#wxHtmlLinkInfo{href=Href}}},
 	    Opened =
 		case lists:keyfind(Id,1,Opened0) of
 		    false ->
-			Win = cdv_detail_wx:start_link(Id,Frame,Callback),
+			Win = cdv_detail_wx:start_link(Id,[],Frame,Callback),
 			[{Id,Win}|Opened0];
 		    {_,Win} ->
 			wxFrame:raise(Win),
@@ -327,6 +333,26 @@ fetch_state_info2(Pid, M) ->
 	{badrpc,{'EXIT',{timeout, _}}} -> []
     end.
 
+init_log_page(Parent, Pid, Table) ->
+    Win = observer_lib:html_window(Parent),
+    Update = fun() ->
+		     Fd = spawn_link(fun() -> io_server() end),
+		     rpc:call(node(Pid), rb, rescan, [[{start_log, Fd}]]),
+		     rpc:call(node(Pid), rb, grep, [local_pid_str(Pid)]),
+		     Logs = io_get_data(Fd),
+		     %% Replace remote local pid notation to global notation
+		     Pref = global_pid_node_pref(Pid),
+		     ExpPid = re:replace(Logs,"<0\.","<" ++ Pref ++ ".",[global, {return, list}]),
+		     %% Try to keep same look by removing blanks at right of rewritten PID
+		     NbBlanks = length(Pref) - 1,
+		     Re = "(<" ++ Pref ++ "\.[^>]{1,}>)[ ]{"++ integer_to_list(NbBlanks) ++ "}",
+		     Look = re:replace(ExpPid, Re, "\\1", [global, {return, list}]),
+		     Html = observer_html_lib:expandable_term("SaslLog", Look, Table),
+		     wxHtmlWindow:setPage(Win, Html)
+	     end,
+    Update(),
+    {Win, Update}.
+
 create_menus(MenuBar) ->
     Menus = [{"File", [#create_menu{id=?wxID_CLOSE, text="Close"}]},
 	     {"View", [#create_menu{id=?REFRESH, text="Refresh\tCtrl-R"}]}],
@@ -409,3 +435,51 @@ filter_monitor_info() ->
 	    Ms = proplists:get_value(monitors, Data),
 	    [Pid || {process, Pid} <- Ms]
     end.
+
+local_pid_str(Pid) ->
+    %% observer can observe remote nodes
+    %% There is no function to get the local
+    %% pid from the remote pid ...
+    %% So grep will fail to find remote pid in remote local log.
+    %% i.e. <4589.42.1> will not be found, but <0.42.1> will
+    %% Let's replace first integer by zero
+    "<0" ++ re:replace(pid_to_list(Pid),"\<([0-9]{1,})","",[{return, list}]).
+
+global_pid_node_pref(Pid) ->
+    %% Global PID node prefix : X of <X.Y.Z>
+    string:strip(string:sub_word(pid_to_list(Pid),1,$.),left,$<).
+    
+
+io_get_data(Pid) ->
+    Pid ! {self(), get_data_and_close},
+    receive
+	{Pid, data, Data} ->  lists:flatten(Data)
+    end.
+
+io_server() ->
+    io_server(#io{}).
+
+io_server(State) ->
+    receive
+	{io_request, From, ReplyAs, Request} ->
+	    {_, Reply, NewState} =  io_request(Request,State),
+	    From ! {io_reply, ReplyAs, Reply},
+	    io_server(NewState);
+	{Pid, get_data_and_close} ->
+	    Pid ! {self(), data, lists:reverse(State#io.rdata)},
+	    normal;
+	_Unknown ->
+	    io_server(State)
+    end.
+
+io_request({put_chars, _Encoding, Chars}, State = #io{rdata=Data}) ->
+    {ok, ok, State#io{rdata=[Chars|Data]}};
+io_request({put_chars, Encoding, Module, Function, Args}, State) ->
+    try
+	io_request({put_chars, Encoding, apply(Module, Function, Args)}, State)
+    catch _:_ ->
+	    {error, {error, Function}, State}
+    end;
+io_request(_Req, State) ->
+    %% io:format("~p: Unknown req: ~p ~n",[?LINE, _Req]),
+    {ok, {error, request}, State}.
diff --git a/lib/observer/src/observer_sys_wx.erl b/lib/observer/src/observer_sys_wx.erl
index f989f9cf97..ea89590e84 100644
--- a/lib/observer/src/observer_sys_wx.erl
+++ b/lib/observer/src/observer_sys_wx.erl
@@ -37,7 +37,6 @@
 	 parent_notebook,
 	 panel, sizer,
 	 menubar,
-	 alloc,
 	 fields,
 	 timer}).
 
@@ -48,7 +47,6 @@ start_link(Notebook, Parent) ->
 
 init([Notebook, Parent]) ->
     SysInfo = observer_backend:sys_info(),
-    AllocInfo = proplists:get_value(alloc_info, SysInfo, []),
     {Info, Stat} = info_fields(),
     Panel = wxPanel:new(Notebook),
     Sizer = wxBoxSizer:new(?wxVERTICAL),
@@ -60,16 +58,13 @@ init([Notebook, Parent]) ->
     wxSizer:add(TopSizer, FPanel0, [{flag, ?wxEXPAND}, {proportion, 1}]),
     wxSizer:add(TopSizer, FPanel1, [{flag, ?wxEXPAND}, {proportion, 1}]),
     BorderFlags = ?wxLEFT bor ?wxRIGHT,
-    {MemPanel, MemoryInfo} = create_mem_info(Panel, AllocInfo),
     wxSizer:add(Sizer, TopSizer, [{flag, ?wxEXPAND bor BorderFlags bor ?wxTOP},
 				  {proportion, 0}, {border, 5}]),
-    wxSizer:add(Sizer, MemPanel, [{flag, ?wxEXPAND bor BorderFlags bor ?wxBOTTOM},
-				    {proportion, 1}, {border, 5}]),
     wxPanel:setSizer(Panel, Sizer),
     Timer = observer_lib:start_timer(10),
     {Panel, #sys_wx_state{parent=Parent,
 			  parent_notebook=Notebook,
-			  panel=Panel, sizer=Sizer, alloc=MemoryInfo,
+			  panel=Panel, sizer=Sizer,
 			  timer=Timer, fields=Fields0 ++ Fields1}}.
 
 create_sys_menu(Parent) ->
@@ -77,91 +72,13 @@ create_sys_menu(Parent) ->
 		     #create_menu{id = ?ID_REFRESH_INTERVAL, text = "Refresh interval"}]},
     observer_wx:create_menus(Parent, [View]).
 
-update_syspage(#sys_wx_state{node = Node, fields=Fields, sizer=Sizer, alloc=AllocCtrl}) ->
+update_syspage(#sys_wx_state{node = Node, fields=Fields, sizer=Sizer}) ->
     SysInfo = observer_wx:try_rpc(Node, observer_backend, sys_info, []),
-    AllocInfo = proplists:get_value(alloc_info, SysInfo, []),
     {Info, Stat} = info_fields(),
     observer_lib:update_info(Fields, observer_lib:fill_info(Info, SysInfo) ++
 				 observer_lib:fill_info(Stat, SysInfo)),
-    update_alloc(AllocCtrl, AllocInfo),
     wxSizer:layout(Sizer).
 
-create_mem_info(Parent, Fields) ->
-    Panel = wxPanel:new(Parent),
-    wxWindow:setBackgroundColour(Panel, {255,255,255}),
-    Style = ?wxLC_REPORT bor ?wxLC_SINGLE_SEL bor ?wxLC_HRULES bor ?wxLC_VRULES,
-    Grid = wxListCtrl:new(Panel, [{style, Style}]),
-    Li = wxListItem:new(),
-    AddListEntry = fun({Name, Align, DefSize}, Col) ->
-			   wxListItem:setText(Li, Name),
-			   wxListItem:setAlign(Li, Align),
-			   wxListCtrl:insertColumn(Grid, Col, Li),
-			   wxListCtrl:setColumnWidth(Grid, Col, DefSize),
-			   Col + 1
-		   end,
-    ListItems = [{"Allocator Type",  ?wxLIST_FORMAT_LEFT,  200},
-		 {"Block size (kB)",  ?wxLIST_FORMAT_RIGHT, 150},
-		 {"Carrier size (kB)",?wxLIST_FORMAT_RIGHT, 150}],
-    lists:foldl(AddListEntry, 0, ListItems),
-    wxListItem:destroy(Li),
-    update_alloc(Grid, Fields),
-
-    Sizer = wxBoxSizer:new(?wxVERTICAL),
-    wxSizer:add(Sizer, Grid, [{flag, ?wxEXPAND bor ?wxLEFT bor ?wxRIGHT},
-			      {border, 5}, {proportion, 1}]),
-    wxWindow:setSizerAndFit(Panel, Sizer),
-    {Panel, Grid}.
-
-update_alloc(Grid, AllocInfo) ->
-    Fields = alloc_info(AllocInfo, [], 0, 0, true),
-    wxListCtrl:deleteAllItems(Grid),
-    Update = fun({Name, BS, CS}, Row) ->
-		     wxListCtrl:insertItem(Grid, Row, ""),
-		     wxListCtrl:setItem(Grid, Row, 0, observer_lib:to_str(Name)),
-		     wxListCtrl:setItem(Grid, Row, 1, observer_lib:to_str(BS div 1024)),
-		     wxListCtrl:setItem(Grid, Row, 2, observer_lib:to_str(CS div 1024)),
-		     Row + 1
-	     end,
-    lists:foldl(Update, 0, Fields),
-    Fields.
-
-alloc_info([{Type,Instances}|Allocators],TypeAcc,TotalBS,TotalCS,IncludeTotal) ->
-    {BS,CS,NewTotalBS,NewTotalCS,NewIncludeTotal} =
-	sum_alloc_instances(Instances,0,0,TotalBS,TotalCS),
-    alloc_info(Allocators,[{Type,BS,CS}|TypeAcc],NewTotalBS,NewTotalCS,
-	       IncludeTotal andalso NewIncludeTotal);
-alloc_info([],TypeAcc,TotalBS,TotalCS,IncludeTotal) ->
-    Types = [X || X={_,BS,CS} <- TypeAcc, (BS>0 orelse CS>0)],
-    case IncludeTotal of
-	true ->
-	    [{total,TotalBS,TotalCS} | lists:reverse(Types)];
-	false ->
-	    lists:reverse(Types)
-    end.
-
-sum_alloc_instances(false,BS,CS,TotalBS,TotalCS) ->
-    {BS,CS,TotalBS,TotalCS,false};
-sum_alloc_instances([{_,_,Data}|Instances],BS,CS,TotalBS,TotalCS) ->
-    {NewBS,NewCS,NewTotalBS,NewTotalCS} =
-	sum_alloc_one_instance(Data,BS,CS,TotalBS,TotalCS),
-    sum_alloc_instances(Instances,NewBS,NewCS,NewTotalBS,NewTotalCS);
-sum_alloc_instances([],BS,CS,TotalBS,TotalCS) ->
-    {BS,CS,TotalBS,TotalCS,true}.
-
-sum_alloc_one_instance([{sbmbcs,[{blocks_size,BS,_,_},{carriers_size,CS,_,_}]}|
-			Rest],OldBS,OldCS,TotalBS,TotalCS) ->
-    sum_alloc_one_instance(Rest,OldBS+BS,OldCS+CS,TotalBS,TotalCS);
-sum_alloc_one_instance([{_,[{blocks_size,BS,_,_},{carriers_size,CS,_,_}]}|
-			Rest],OldBS,OldCS,TotalBS,TotalCS) ->
-    sum_alloc_one_instance(Rest,OldBS+BS,OldCS+CS,TotalBS+BS,TotalCS+CS);
-sum_alloc_one_instance([{_,[{blocks_size,BS},{carriers_size,CS}]}|
-			Rest],OldBS,OldCS,TotalBS,TotalCS) ->
-    sum_alloc_one_instance(Rest,OldBS+BS,OldCS+CS,TotalBS+BS,TotalCS+CS);
-sum_alloc_one_instance([_|Rest],BS,CS,TotalBS,TotalCS) ->
-    sum_alloc_one_instance(Rest,BS,CS,TotalBS,TotalCS);
-sum_alloc_one_instance([],BS,CS,TotalBS,TotalCS) ->
-    {BS,CS,TotalBS,TotalCS}.
-
 info_fields() ->
     Info = [{"System and Architecture",
 	     [{"System Version", otp_release},
diff --git a/lib/observer/src/observer_wx.erl b/lib/observer/src/observer_wx.erl
index 15df804975..cf602569aa 100644
--- a/lib/observer/src/observer_wx.erl
+++ b/lib/observer/src/observer_wx.erl
@@ -37,11 +37,13 @@
 -define(ID_CONNECT, 2).
 -define(ID_NOTEBOOK, 3).
 -define(ID_CDV,      4).
+-define(ID_LOGVIEW, 5).
 
 -define(FIRST_NODES_MENU_ID, 1000).
 -define(LAST_NODES_MENU_ID,  2000).
 
 -define(TRACE_STR, "Trace Overview").
+-define(ALLOC_STR, "Memory Allocators").
 
 %% Records
 -record(state,
@@ -57,10 +59,12 @@
 	 trace_panel,
 	 app_panel,
 	 perf_panel,
+	 allc_panel,
 	 active_tab,
 	 node,
 	 nodes,
-	 prev_node=""
+	 prev_node="",
+	 log = false
 	}).
 
 start() ->
@@ -147,6 +151,10 @@ setup(#state{frame = Frame} = State) ->
     PerfPanel = observer_perf_wx:start_link(Notebook, self()),
     wxNotebook:addPage(Notebook, PerfPanel, "Load Charts", []),
 
+    %% Memory Allocator Viewer Panel
+    AllcPanel = observer_alloc_wx:start_link(Notebook, self()),
+    wxNotebook:addPage(Notebook, AllcPanel, ?ALLOC_STR, []),
+
     %% App Viewer Panel
     AppPanel = observer_app_wx:start_link(Notebook, self()),
     wxNotebook:addPage(Notebook, AppPanel, "Applications", []),
@@ -182,6 +190,7 @@ setup(#state{frame = Frame} = State) ->
 			   trace_panel = TracePanel,
 			   app_panel = AppPanel,
 			   perf_panel = PerfPanel,
+			   allc_panel = AllcPanel,
 			   active_tab = SysPid,
 			   node  = node(),
 			   nodes = Nodes
@@ -215,14 +224,17 @@ handle_event(#wx{event=#wxNotebook{type=command_notebook_page_changing}},
 	    {noreply, State#state{active_tab=Pid}}
     end;
 
-handle_event(#wx{event = #wxClose{}}, State) ->
-    {stop, normal, State};
-
 handle_event(#wx{id = ?ID_CDV, event = #wxCommand{type = command_menu_selected}}, State) ->
     spawn(crashdump_viewer, start, []),
     {noreply, State};
 
-handle_event(#wx{id = ?wxID_EXIT, event = #wxCommand{type = command_menu_selected}}, State) ->
+handle_event(#wx{event = #wxClose{}}, #state{log=LogOn} = State) ->
+    LogOn andalso rpc:block_call(State#state.node, rb, stop, []),
+    {stop, normal, State};
+
+handle_event(#wx{id = ?wxID_EXIT, event = #wxCommand{type = command_menu_selected}},
+	     #state{log=LogOn} = State) ->
+    LogOn andalso rpc:block_call(State#state.node, rb, stop, []),
     {stop, normal, State};
 
 handle_event(#wx{id = ?wxID_HELP, event = #wxCommand{type = command_menu_selected}}, State) ->
@@ -300,12 +312,42 @@ handle_event(#wx{id = ?ID_PING, event = #wxCommand{type = command_menu_selected}
 	       end,
     {noreply, UpdState};
 
-handle_event(#wx{id = Id, event = #wxCommand{type = command_menu_selected}}, State)
-  when Id > ?FIRST_NODES_MENU_ID, Id < ?LAST_NODES_MENU_ID ->
+handle_event(#wx{id = ?ID_LOGVIEW, event = #wxCommand{type = command_menu_selected}},
+	     #state{frame = Frame, log = PrevLog, node = Node} = State) ->
+    try
+	ok = ensure_sasl_started(Node),
+	ok = ensure_mf_h_handler_used(Node),
+	ok = ensure_rb_mode(Node, PrevLog),
+	case PrevLog of
+	    false ->
+		rpc:block_call(Node, rb, start, []),
+		set_status("Observer - " ++ atom_to_list(Node) ++ " (rb_server started)"),
+		{noreply, State#state{log=true}};
+	    true ->
+		rpc:block_call(Node, rb, stop, []),
+		set_status("Observer - " ++ atom_to_list(Node) ++ " (rb_server stopped)"),
+		{noreply, State#state{log=false}}
+	end
+    catch
+	throw:Reason ->
+	    create_txt_dialog(Frame, Reason, "Log view status", ?wxICON_ERROR),
+	    {noreply, State}
+    end;
 
-    Node = lists:nth(Id - ?FIRST_NODES_MENU_ID, State#state.nodes),
-    UpdState = change_node_view(Node, State),
-    {noreply, UpdState};
+handle_event(#wx{id = Id, event = #wxCommand{type = command_menu_selected}},
+	     #state{nodes= Ns , node = PrevNode, log = PrevLog} = State)
+  when Id > ?FIRST_NODES_MENU_ID, Id < ?LAST_NODES_MENU_ID ->
+    Node = lists:nth(Id - ?FIRST_NODES_MENU_ID, Ns),
+    %% Close rb_server only if another node than current one selected
+    LState = case PrevLog of
+		 true  -> case Node == PrevNode of
+			      false -> rpc:block_call(PrevNode, rb, stop, []),
+				       State#state{log=false} ;
+			      true  -> State
+			  end;
+		 false -> State
+             end,
+    {noreply, change_node_view(Node, LState)};
 
 handle_event(Event, State) ->
     Pid = get_active_pid(State),
@@ -340,6 +382,9 @@ handle_call(stop, _, State = #state{frame = Frame}) ->
     wxFrame:destroy(Frame),
     {stop, normal, ok, State};
 
+handle_call(log_status, _From, State) ->
+    {reply, State#state.log, State};
+
 handle_call(_Msg, _From, State) ->
     {reply, ok, State}.
 
@@ -467,7 +512,7 @@ check_page_title(Notebook) ->
 
 get_active_pid(#state{notebook=Notebook, pro_panel=Pro, sys_panel=Sys,
 		      tv_panel=Tv, trace_panel=Trace, app_panel=App,
-		      perf_panel=Perf
+		      perf_panel=Perf, allc_panel=Alloc
 		     }) ->
     Panel = case check_page_title(Notebook) of
 		"Processes" -> Pro;
@@ -475,13 +520,14 @@ get_active_pid(#state{notebook=Notebook, pro_panel=Pro, sys_panel=Sys,
 		"Table Viewer" -> Tv;
 		?TRACE_STR -> Trace;
 		"Load Charts" -> Perf;
-		"Applications" -> App
+		"Applications" -> App;
+		?ALLOC_STR -> Alloc
 	    end,
     wx_object:get_pid(Panel).
 
 pid2panel(Pid, #state{pro_panel=Pro, sys_panel=Sys,
 		      tv_panel=Tv, trace_panel=Trace, app_panel=App,
-		      perf_panel=Perf}) ->
+		      perf_panel=Perf, allc_panel=Alloc}) ->
     case Pid of
 	Pro -> "Processes";
 	Sys -> "System";
@@ -489,6 +535,7 @@ pid2panel(Pid, #state{pro_panel=Pro, sys_panel=Sys,
 	Trace -> ?TRACE_STR;
 	Perf -> "Load Charts";
 	App -> "Applications";
+	Alloc -> ?ALLOC_STR;
 	_ -> "unknown"
     end.
 
@@ -568,17 +615,19 @@ default_menus(NodesMenuItems) ->
 		   false -> {"Nodes", NodesMenuItems ++
 				 [#create_menu{id = ?ID_CONNECT, text = "Enable distribution"}]}
 	       end,
+    LogMenu =  {"Log", [#create_menu{id = ?ID_LOGVIEW, text = "Toggle log view"}]},
     case os:type() =:= {unix, darwin} of
 	false ->
 	    FileMenu = {"File", [CDV, Quit]},
 	    HelpMenu = {"Help", [About,Help]},
-	    [FileMenu, NodeMenu, HelpMenu];
+	    [FileMenu, NodeMenu, LogMenu, HelpMenu];
 	true ->
 	    %% On Mac quit and about will be moved to the "default' place
 	    %% automagicly, so just add them to a menu that always exist.
 	    %% But not to the help menu for some reason
+
 	    {Tag, Menus} = FileMenu,
-	    [{Tag, Menus ++ [About]}, NodeMenu, {"&Help", [Help]}]
+	    [{Tag, Menus ++ [Quit,About]}, NodeMenu, LogMenu, {"&Help", [Help]}]
     end.
 
 clean_menus(Menus, MenuBar) ->
@@ -657,3 +706,59 @@ update_node_list(State = #state{menubar=MenuBar}) ->
 	   end,
     observer_lib:create_menu_item(Dist, NodeMenu, Index),
     State#state{nodes = Nodes}.
+
+ensure_sasl_started(Node) ->
+   %% is sasl started ?
+   Apps = rpc:block_call(Node, application, which_applications, []),
+   case lists:keyfind(sasl, 1, Apps) of
+       false        ->  throw("Error: sasl application not started."),
+                        error;
+       {sasl, _, _} ->  ok
+   end.
+
+ensure_mf_h_handler_used(Node) ->
+   %% is log_mf_h used ?
+   Handlers = rpc:block_call(Node, gen_event, which_handlers, [error_logger]),
+   case lists:any(fun(L)-> L == log_mf_h end, Handlers) of
+       false -> throw("Error: log_mf_h handler not used in sasl."),
+                error;
+       true  -> ok
+   end.
+
+ensure_rb_mode(Node, PrevLog) ->
+    ok = ensure_rb_module_loaded(Node),
+    ok = is_rb_compatible(Node),
+    ok = is_rb_server_running(Node, PrevLog),
+    ok.
+
+
+ensure_rb_module_loaded(Node) ->
+   %% Need to ensure that module is loaded in order to detect exported
+   %% functions on interactive nodes
+   case rpc:block_call(Node, code, ensure_loaded, [rb]) of
+       {badrpc, Reason} ->
+	   throw("Error: badrpc - " ++ io_lib:format("~tp",[Reason]));
+       {error, Reason} ->
+	   throw("Error: rb module load error - " ++ io_lib:format("~tp",[Reason]));
+       {module,rb} ->
+	   ok
+   end.
+
+is_rb_compatible(Node) ->
+   %% Simply test that rb:log_list/0 is exported
+   case rpc:block_call(Node, erlang, function_exported, [rb, log_list, 0]) of
+       false -> throw("Error: Node's Erlang release must be at least R16B02.");
+       true  -> ok
+   end.
+
+is_rb_server_running(Node, LogState) ->
+   %% If already started, somebody else may use it.
+   %% We can not use it too, as far log file would be overriden. Not fair.
+   case rpc:block_call(Node, erlang, whereis, [rb_server]) of
+       Pid when is_pid(Pid), (LogState == false) ->
+	   throw("Error: rb_server is already started and maybe used by someone.");
+       Pid when is_pid(Pid) ->
+	   ok;
+       undefined ->
+	   ok
+   end.
diff --git a/lib/observer/src/ttb.erl b/lib/observer/src/ttb.erl
index 61fd6d1787..a2db40aa2f 100644
--- a/lib/observer/src/ttb.erl
+++ b/lib/observer/src/ttb.erl
@@ -849,7 +849,7 @@ get_nodes() ->
     receive {?MODULE,Nodes} -> Nodes end.
 
 ts() ->
-    {{Y,M,D},{H,Min,S}} = calendar:now_to_local_time(now()),
+    {{Y,M,D},{H,Min,S}} = calendar:now_to_local_time(erlang:timestamp()),
     io_lib:format("-~4.4.0w~2.2.0w~2.2.0w-~2.2.0w~2.2.0w~2.2.0w",
 		  [Y,M,D,H,Min,S]).
 
diff --git a/lib/observer/test/crashdump_viewer_SUITE.erl b/lib/observer/test/crashdump_viewer_SUITE.erl
index 03ab0c20e1..1266b1f9b9 100644
--- a/lib/observer/test/crashdump_viewer_SUITE.erl
+++ b/lib/observer/test/crashdump_viewer_SUITE.erl
@@ -101,7 +101,7 @@ end_per_group(_GroupName, Config) ->
 init_per_suite(Config) when is_list(Config) ->
     delete_saved(Config),
     DataDir = ?config(data_dir,Config),
-    Rels = [R || R <- [r15b,r16b], ?t:is_release_available(R)] ++ [current],
+    Rels = [R || R <- [r16b,'17'], ?t:is_release_available(R)] ++ [current],
     io:format("Creating crash dumps for the following releases: ~p", [Rels]),
     AllDumps = create_dumps(DataDir,Rels),
     [{dumps,AllDumps}|Config].
@@ -563,12 +563,6 @@ dump_with_strange_module_name(DataDir,Rel,DumpName) ->
     CD.
 
 dump(Node,DataDir,Rel,DumpName) ->
-    case Rel of
-	_ when Rel<r15b, Rel=/=current ->
-	    rpc:call(Node,os,putenv,["ERL_CRASH_DUMP_SECONDS","600"]);
-	_ ->
-	    ok
-    end,
     rpc:call(Node,erlang,halt,[DumpName]),
     Crashdump0 = filename:join(filename:dirname(code:which(?t)),
 			       "erl_crash_dump.n1"),
@@ -623,42 +617,21 @@ dos_dump(DataDir,Rel,Dump) ->
 
 rel_opt(Rel) ->
     case Rel of
-	r9b -> [{erl,[{release,"r9b_patched"}]}];
-	r9c -> [{erl,[{release,"r9c_patched"}]}];
-	r10b -> [{erl,[{release,"r10b_patched"}]}];
-	r11b -> [{erl,[{release,"r11b_patched"}]}];
-	r12b -> [{erl,[{release,"r12b_patched"}]}];
-	r13b -> [{erl,[{release,"r13b_patched"}]}];
-	r14b -> [{erl,[{release,"r14b_latest"}]}]; %naming convention changed
-	r15b -> [{erl,[{release,"r15b_latest"}]}];
 	r16b -> [{erl,[{release,"r16b_latest"}]}];
+	'17' -> [{erl,[{release,"17_latest"}]}];
 	current -> []
     end.
 
 dump_prefix(Rel) ->
     case Rel of
-	r9b -> "r9b_dump.";
-	r9c -> "r9c_dump.";
-	r10b -> "r10b_dump.";
-	r11b -> "r11b_dump.";
-	r12b -> "r12b_dump.";
-	r13b -> "r13b_dump.";
-	r14b -> "r14b_dump.";
-	r15b -> "r15b_dump.";
 	r16b -> "r16b_dump.";
-	current -> "r17b_dump."
+	'17' -> "r17_dump.";
+	current -> "r18_dump."
     end.
 
 compat_rel(Rel) ->
     case Rel of
-	r9b -> "+R9 ";
-	r9c -> "+R9 ";
-	r10b -> "+R10 ";
-	r11b -> "+R11 ";
-	r12b -> "+R12 ";
-	r13b -> "+R13 ";
-	r14b -> "+R14 ";
-	r15b -> "+R15 ";
 	r16b -> "+R16 ";
+	'17' -> "+R17 ";
 	current -> ""
     end.
diff --git a/lib/observer/test/observer_SUITE.erl b/lib/observer/test/observer_SUITE.erl
index 5cf719acb1..c69fdf4bdf 100644
--- a/lib/observer/test/observer_SUITE.erl
+++ b/lib/observer/test/observer_SUITE.erl
@@ -22,6 +22,8 @@
 -include_lib("wx/include/wx.hrl").
 -include_lib("observer/src/observer_tv.hrl").
 
+-define(ID_LOGVIEW, 5).
+
 %% Test server specific exports
 -export([all/0, suite/0,groups/0]).
 -export([init_per_testcase/2, end_per_testcase/2,
@@ -44,8 +46,9 @@ all() ->
 
 groups() ->
     [{gui, [],
-      [basic
-      , process_win, table_win
+      [basic,
+       process_win,
+       table_win
       ]
      }].
 
@@ -107,7 +110,7 @@ appup_file(Config) when is_list(Config) ->
 basic(suite) -> [];
 basic(doc) -> [""];
 basic(Config) when is_list(Config) ->
-    timer:send_after(100, "foobar"), %% Otherwise the timer sever gets added to procs
+    timer:send_after(100, "foobar"), %% Otherwise the timer server gets added to procs
     ProcsBefore = processes(),
     NumProcsBefore = length(ProcsBefore),
 
@@ -126,7 +129,7 @@ basic(Config) when is_list(Config) ->
 		    timer:sleep(200),
 		    ok = wxNotebook:advanceSelection(Notebook)
 	    end,
-    %% Just verify that we can toogle trough all pages
+    %% Just verify that we can toggle through all pages
     [_|_] = [Check(N, false) || N <- lists:seq(1, Count)],
     %% Cause it to resize
     Frame = get_top_level_parent(Notebook),
@@ -214,10 +217,27 @@ test_page(Title, Window) ->
 process_win(suite) -> [];
 process_win(doc) -> [""];
 process_win(Config) when is_list(Config) ->
+    % Stop SASL if already started
+    SaslStart = case whereis(sasl_sup) of
+                  undefined -> false;
+                  _         -> application:stop(sasl),
+                               true
+                end,
+    % Define custom sasl and log_mf_h app vars
+    Privdir=?config(priv_dir,Config),
+    application:set_env(sasl, sasl_error_logger, tty),
+    application:set_env(sasl, error_logger_mf_dir, Privdir),
+    application:set_env(sasl, error_logger_mf_maxbytes, 1000),
+    application:set_env(sasl, error_logger_mf_maxfiles, 5),
+    application:start(sasl),
     ok = observer:start(),
     ObserverNB = setup_whitebox_testing(),
     Parent = get_top_level_parent(ObserverNB),
-    Frame = observer_procinfo:start(self(), Parent, self()),
+    % Activate log view
+    whereis(observer) ! #wx{id = ?ID_LOGVIEW, event = #wxCommand{type = command_menu_selected}},
+    timer:sleep(1000),
+    % Process window tests (use sasl_sup for a non empty Log tab)
+    Frame = observer_procinfo:start(whereis(sasl_sup), Parent, self()),
     PIPid = wx_object:get_pid(Frame),
     PIPid ! {get_debug_info, self()},
     Notebook = receive {procinfo_debug, NB} -> NB end,
@@ -229,6 +249,11 @@ process_win(Config) when is_list(Config) ->
     [_|_] = [Check(N) || N <- lists:seq(1, Count)],
     PIPid ! #wx{event=#wxClose{type=close_window}},
     observer:stop(),
+    application:stop(sasl),
+    case SaslStart of
+         true  -> application:start(sasl);
+         false -> ok
+    end,
     ok.
 
 table_win(suite) -> [];
diff --git a/lib/observer/vsn.mk b/lib/observer/vsn.mk
index 10ed3bdfe5..7e7e32099b 100644
--- a/lib/observer/vsn.mk
+++ b/lib/observer/vsn.mk
@@ -1 +1 @@
-OBSERVER_VSN = 2.0.4
+OBSERVER_VSN = 2.1
diff --git a/lib/orber/COSS/CosNaming/CosNaming_NamingContextExt_impl.erl b/lib/orber/COSS/CosNaming/CosNaming_NamingContextExt_impl.erl
index 84db0b89f8..654a8f4385 100644
--- a/lib/orber/COSS/CosNaming/CosNaming_NamingContextExt_impl.erl
+++ b/lib/orber/COSS/CosNaming/CosNaming_NamingContextExt_impl.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2000-2009. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -533,7 +533,9 @@ unbind(_OE_THIS, _OE_State, []) ->
 %% Returns    : 
 %%----------------------------------------------------------------------
 new_context(_OE_THIS, OE_State) ->
-    DBKey = term_to_binary({now(), node()}),
+    DBKey = term_to_binary({{erlang:system_time(),
+			     erlang:unique_integer()}, 
+			    node()}),
     %% Create a record in the table and set the key to a newly
     {reply, 
      'CosNaming_NamingContextExt':oe_create(DBKey, 
@@ -547,7 +549,9 @@ new_context(_OE_THIS, OE_State) ->
 %% Returns    : 
 %%----------------------------------------------------------------------
 bind_new_context(OE_THIS, OE_State, N) ->
-    DBKey = term_to_binary({now(), node()}),
+    DBKey = term_to_binary({{erlang:system_time(),
+			     erlang:unique_integer()}, 
+			    node()}),
     %% Create a record in the table and set the key to a newly
     %% generated objectkey.
     %%?PRINTDEBUG("bind_new_context"),
diff --git a/lib/orber/src/cdr_decode.erl b/lib/orber/src/cdr_decode.erl
index 9aec64892e..00dcf01c56 100644
--- a/lib/orber/src/cdr_decode.erl
+++ b/lib/orber/src/cdr_decode.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1997-2010. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -1110,10 +1110,8 @@ ifrid_to_name(Id, Type) ->
 				      [?LINE, Id, Type], ?DEBUG_LEVEL),
 			    corba:raise(#'MARSHAL'{completion_status=?COMPLETED_MAYBE});
 			Nodes ->
-			    {A,B,C} = now(),
-			    random:seed(A,B,C),
 			    L = length(Nodes),
-			    IFR = get_ifr_node(Nodes, random:uniform(L), L),
+			    IFR = get_ifr_node(Nodes, rand:uniform(L), L),
 			    list_to_atom('OrberApp_IFR':get_absolute_name(IFR, Id))
 		    end;
 		{'EXIT', Other} ->
@@ -1176,7 +1174,7 @@ get_ifr_node(Nodes, N, L) ->
 	_ ->
 	    %% Not able to commincate with the node. Try next one.
 	    NewL = L-1,
-	    get_ifr_node(lists:delete(Node, Nodes), random:uniform(NewL), NewL)
+	    get_ifr_node(lists:delete(Node, Nodes), rand:uniform(NewL), NewL)
     end.
 
     
@@ -1260,10 +1258,8 @@ get_user_exception_type(TypeId) ->
 						   completion_status=?COMPLETED_MAYBE})
 		    end;
 		Nodes ->
-		    {A,B,C} = now(),
-		    random:seed(A,B,C),
 		    L = length(Nodes),
-		    IFR = get_ifr_node(Nodes, random:uniform(L), L),
+		    IFR = get_ifr_node(Nodes, rand:uniform(L), L),
 		    'OrberApp_IFR':get_user_exception_type(IFR, TypeId)
 	    end
     end.
diff --git a/lib/orber/src/corba.erl b/lib/orber/src/corba.erl
index 586a02d540..f0eeb18c24 100644
--- a/lib/orber/src/corba.erl
+++ b/lib/orber/src/corba.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1997-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -1922,7 +1922,9 @@ mk_passive_objkey(Mod, Module, Flags) ->
     {Mod, 'passive', Module, term_to_binary(undefined), 0, Flags}.
 
 make_objkey() ->
-    term_to_binary({now(), node()}).
+    term_to_binary({{erlang:system_time(), 
+		     erlang:unique_integer()}, 
+		    node()}).
 
 objkey_to_string({_Mod, 'registered', 'orber_init', _UserDef, _OrberDef, _Flags}) ->
     "INIT";
diff --git a/lib/orber/src/orber.app.src b/lib/orber/src/orber.app.src
index 30bd90347d..217c1b247f 100644
--- a/lib/orber/src/orber.app.src
+++ b/lib/orber/src/orber.app.src
@@ -104,8 +104,8 @@
   {applications, [stdlib, kernel, mnesia]},
   {env, []},
   {mod, {orber, []}},
-  {runtime_dependencies, ["stdlib-2.0","ssl-5.3.4","mnesia-4.12","kernel-3.0",
-			  "inets-5.10","erts-6.0"]}
+  {runtime_dependencies, ["stdlib-2.5","ssl-5.3.4","mnesia-4.12","kernel-3.0",
+			  "inets-5.10","erts-7.0"]}
 ]}.
 
 
diff --git a/lib/orber/src/orber_ifr_utils.erl b/lib/orber/src/orber_ifr_utils.erl
index 11e3d1cd3b..35c891ef6e 100644
--- a/lib/orber/src/orber_ifr_utils.erl
+++ b/lib/orber/src/orber_ifr_utils.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1997-2009. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -289,10 +289,9 @@ makeref(Obj) ->
 %%% unique tag. I do this because the tuple generated takes a lot of space
 %%% when I dump the database. A binary is simply printed as #Bin, which
 %%% is much less obtrusive.
-%%% The code has been moved to a macro defined in orber_ifr.hrl, so we
-%%% can use a simpler uniqification code when debugging.
 
-unique() -> term_to_binary({node(), now()}).
+unique() -> term_to_binary({node(), {erlang:system_time(), 
+				     erlang:unique_integer()}}).
 
 %%%----------------------------------------------------------------------
 %%% Check for an existing object with the Id of the object which is
diff --git a/lib/orber/src/orber_objectkeys.erl b/lib/orber/src/orber_objectkeys.erl
index b0e759187b..f57b1d811f 100644
--- a/lib/orber/src/orber_objectkeys.erl
+++ b/lib/orber/src/orber_objectkeys.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1997-2009. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -374,11 +374,11 @@ handle_call({register, Objkey, Pid, Type}, _From, State) ->
 			  %% No key exists. Ok to register.
 			  mnesia:write(#orber_objkeys{object_key=Objkey, pid=Pid,
 						      persistent=Type,
-						      timestamp=now()});
+						      timestamp=erlang:monotonic_time(seconds)});
 		      [X] when X#orber_objkeys.persistent==true,
 			       X#orber_objkeys.pid == dead ->
 			  %% A persistent object is being restarted. Update Pid & time.
-			  mnesia:write(X#orber_objkeys{pid=Pid, timestamp=now()});
+			  mnesia:write(X#orber_objkeys{pid=Pid, timestamp=erlang:monotonic_time(seconds)});
 		      [X] when is_pid(X#orber_objkeys.pid) ->
 			  %% Object exists, i.e., trying to create an object with
 			  %% the same name.
@@ -477,7 +477,7 @@ handle_info({'EXIT', Pid, Reason}, State) when is_pid(Pid) ->
 			       Reason /= normal andalso
 			       Reason /= shutdown ->
 			  mnesia:write(X#orber_objkeys{pid=dead,
-						       timestamp=now()});
+						       timestamp=erlang:monotonic_time(seconds)});
 		      [X] when X#orber_objkeys.persistent==true ->
 			  mnesia:delete({orber_objkeys, X#orber_objkeys.object_key});
 		      _->
@@ -503,8 +503,8 @@ code_change(_OldVsn, State, _Extra) ->
 %% Internal Functions
 %%-----------------------------------------------------------------
 
-timetest(S, {MeSec, Sec, USec}) ->
-    {MeSec, Sec+S, USec} < now().
+timetest(S, TimeStamp) ->
+    TimeStamp+S < erlang:monotonic_time(seconds).
 
 get_key_from_pid(Pid) ->
     case  mnesia:dirty_match_object({orber_objkeys, '_', Pid,'_','_'}) of
diff --git a/lib/orber/src/orber_socket.erl b/lib/orber/src/orber_socket.erl
index 4507d90cce..4567728693 100644
--- a/lib/orber/src/orber_socket.erl
+++ b/lib/orber/src/orber_socket.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1997-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -167,8 +167,6 @@ multi_connect([CurrentPort|Rest], Retries, ssl, Host, Port, Options, Timeout) ->
 get_port_sequence(Min, Max) ->
     case orber_env:iiop_out_ports_random() of
 	true ->
-	    {A1,A2,A3} = now(),
-	    random:seed(A1, A2, A3),
 	    Seq = lists:seq(Min, Max),
 	    random_sequence((Max - Min) + 1, Seq, []);
 	_ ->
@@ -178,7 +176,7 @@ get_port_sequence(Min, Max) ->
 random_sequence(0, _, Acc) ->
     Acc;
 random_sequence(Length, Seq, Acc) ->
-    Nth = random:uniform(Length),
+    Nth = rand:uniform(Length),
     Value = lists:nth(Nth, Seq),
     NewSeq = lists:delete(Value, Seq),
     random_sequence(Length-1, NewSeq, [Value|Acc]).
diff --git a/lib/orber/src/orber_web_server.erl b/lib/orber/src/orber_web_server.erl
index 9d2a063a69..1cda862f1b 100644
--- a/lib/orber/src/orber_web_server.erl
+++ b/lib/orber/src/orber_web_server.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2001-2009. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -46,7 +46,7 @@
 
 -define(DEBUG_LEVEL, 5).
 
--record(state, {ts}).
+-record(state, {}).
 -include("ifr_objects.hrl").
 
 %%----------------------------------------------------------------------
@@ -133,9 +133,7 @@ delete_obj(Env, Input) ->
 %% Description: 
 %%----------------------------------------------------------------------
 init(_Arg)->
-    {M, S, U} = now(),
-    TS = M*1000000000000 + S*1000000 + U,
-    {ok, #state{ts = TS}}.
+    {ok, #state{}}.
 
 terminate(_,_State)->
     ok.
diff --git a/lib/orber/test/cdrcoding_10_SUITE.erl b/lib/orber/test/cdrcoding_10_SUITE.erl
index 54ad92cf7e..d8e57f74e5 100644
--- a/lib/orber/test/cdrcoding_10_SUITE.erl
+++ b/lib/orber/test/cdrcoding_10_SUITE.erl
@@ -622,4 +622,6 @@ corba_fake_mk_objkey(Id, 'registered', RegName) when is_atom(RegName) ->
      term_to_binary(undefined), term_to_binary(undefined)}.
 
 make_objkey() ->
-    term_to_binary({now(), node()}).
+    term_to_binary({{erlang:system_time(), 
+		     erlang:unique_integer()}, 
+		    node()}).
diff --git a/lib/orber/test/cdrcoding_11_SUITE.erl b/lib/orber/test/cdrcoding_11_SUITE.erl
index 29b3e33069..bcd2b70446 100644
--- a/lib/orber/test/cdrcoding_11_SUITE.erl
+++ b/lib/orber/test/cdrcoding_11_SUITE.erl
@@ -621,4 +621,6 @@ corba_fake_mk_objkey(Id, 'registered', RegName) when is_atom(RegName) ->
      term_to_binary(undefined), term_to_binary(undefined)}.
 
 make_objkey() ->
-    term_to_binary({now(), node()}).
+    term_to_binary({{erlang:system_time(), 
+		     erlang:unique_integer()}, 
+		    node()}).
diff --git a/lib/orber/test/cdrcoding_12_SUITE.erl b/lib/orber/test/cdrcoding_12_SUITE.erl
index dd9b98434d..a58688b654 100644
--- a/lib/orber/test/cdrcoding_12_SUITE.erl
+++ b/lib/orber/test/cdrcoding_12_SUITE.erl
@@ -609,4 +609,6 @@ corba_fake_mk_objkey(Id, 'registered', RegName) when is_atom(RegName) ->
      term_to_binary(undefined), term_to_binary(undefined)}.
 
 make_objkey() ->
-    term_to_binary({now(), node()}).
+    term_to_binary({{erlang:system_time(), 
+		     erlang:unique_integer()}, 
+		    node()}).
diff --git a/lib/orber/test/iop_ior_10_SUITE.erl b/lib/orber/test/iop_ior_10_SUITE.erl
index 58dd1b5dba..be3daf6198 100644
--- a/lib/orber/test/iop_ior_10_SUITE.erl
+++ b/lib/orber/test/iop_ior_10_SUITE.erl
@@ -182,4 +182,6 @@ corba_fake_mk_objkey(Id, 'registered', RegName) when is_atom(RegName) ->
      
 
 make_objkey() ->
-    term_to_binary({now(), node()}).
+    term_to_binary({{erlang:system_time(), 
+		     erlang:unique_integer()}, 
+		    node()}).
diff --git a/lib/orber/test/iop_ior_11_SUITE.erl b/lib/orber/test/iop_ior_11_SUITE.erl
index 24b2f66357..4c4dd4effa 100644
--- a/lib/orber/test/iop_ior_11_SUITE.erl
+++ b/lib/orber/test/iop_ior_11_SUITE.erl
@@ -201,4 +201,6 @@ corba_fake_mk_objkey(Id, 'registered', RegName) when is_atom(RegName) ->
     {Id, 'registered', RegName, term_to_binary(undefined), 0, 0}.
 
 make_objkey() ->
-    term_to_binary({now(), node()}).
+    term_to_binary({{erlang:system_time(), 
+		     erlang:unique_integer()}, 
+		    node()}).
diff --git a/lib/orber/test/iop_ior_12_SUITE.erl b/lib/orber/test/iop_ior_12_SUITE.erl
index 4c6e9ddb91..9f50784666 100644
--- a/lib/orber/test/iop_ior_12_SUITE.erl
+++ b/lib/orber/test/iop_ior_12_SUITE.erl
@@ -202,4 +202,6 @@ corba_fake_mk_objkey(Id, 'registered', RegName) when is_atom(RegName) ->
     {Id, 'registered', RegName, term_to_binary(undefined), 0, 0}.
 
 make_objkey() ->
-    term_to_binary({now(), node()}).
+    term_to_binary({{erlang:system_time(), 
+		     erlang:unique_integer()}, 
+		    node()}).
diff --git a/lib/orber/test/multi_ORB_SUITE.erl b/lib/orber/test/multi_ORB_SUITE.erl
index 40d8846e0f..3d0132c3e6 100644
--- a/lib/orber/test/multi_ORB_SUITE.erl
+++ b/lib/orber/test/multi_ORB_SUITE.erl
@@ -922,9 +922,9 @@ max_requests(Node, Host, Port) ->
     spawn(orber_test_server, pseudo_call_delay, [Obj, 15000]),
     %% Wait for a second to be sure that the previous request has been sent
     timer:sleep(1000),
-    {MegaSecsB, Before, _} = now(),
+    {MegaSecsB, Before, _} = erlang:timestamp(),
     pseudo_calls(5, Obj),
-    {MegaSecsA, After, _} = now(),
+    {MegaSecsA, After, _} = erlang:timestamp(),
     %% Normally we we can perform hundreds of pseudo-calls per second. Hence,
     %% if we add 8 seconds to 'Before' it should still be less since we only
     %% allow one request at a time to the target ORB.
diff --git a/lib/orber/test/orber_acl_SUITE.erl b/lib/orber/test/orber_acl_SUITE.erl
index ab2c2c872c..05146afded 100644
--- a/lib/orber/test/orber_acl_SUITE.erl
+++ b/lib/orber/test/orber_acl_SUITE.erl
@@ -272,21 +272,21 @@ ipv6_bm(_) ->
 bm2(Filters, Family, Ip) ->
     {ok, IPTuple} = inet:getaddr(Ip, Family),
     orber_acl:init_acl(Filters, Family),
-    TimeBefore1 = erlang:now(),
+    TimeBefore1 = erlang:timestamp(),
     bm_loop(IPTuple, ?NO_OF_TIMES),
-    TimeAfter1 = erlang:now(),
+    TimeAfter1 = erlang:timestamp(),
     orber_acl:clear_acl(),
     Time1 = computeTime(TimeBefore1, TimeAfter1),
     orber_acl:init_acl(Filters, Family),
-    TimeBefore2 = erlang:now(),
+    TimeBefore2 = erlang:timestamp(),
     bm_loop2(Ip, ?NO_OF_TIMES, Family),
-    TimeAfter2 = erlang:now(),
+    TimeAfter2 = erlang:timestamp(),
     orber_acl:clear_acl(),
     Time2 = computeTime(TimeBefore2, TimeAfter2),
     orber_acl:init_acl(Filters, Family),
-    TimeBefore3 = erlang:now(),
+    TimeBefore3 = erlang:timestamp(),
     bm_loop2(IPTuple, ?NO_OF_TIMES, Family),
-    TimeAfter3 = erlang:now(),
+    TimeAfter3 = erlang:timestamp(),
     orber_acl:clear_acl(),
     Time3 = computeTime(TimeBefore3, TimeAfter3),
     {ok, round(?NO_OF_TIMES/Time1), round(?NO_OF_TIMES/Time2), round(?NO_OF_TIMES/Time3)}.
diff --git a/lib/orber/test/orber_test_lib.erl b/lib/orber/test/orber_test_lib.erl
index 46ed26f210..c970600fce 100644
--- a/lib/orber/test/orber_test_lib.erl
+++ b/lib/orber/test/orber_test_lib.erl
@@ -220,7 +220,7 @@ js_node(InitOptions) when is_list(InitOptions) ->
     js_node(InitOptions, []).
 
 js_node(InitOptions, StartOptions) when is_list(InitOptions) ->
-    {A,B,C} = erlang:now(),
+    {A,B,C} = erlang:timestamp(),
     [_, Host] = string:tokens(atom_to_list(node()), [$@]),
     _NewInitOptions = check_options(InitOptions),
     js_node_helper(Host, 0, lists:concat([A,'_',B,'_',C]),
diff --git a/lib/orber/test/orber_test_server_impl.erl b/lib/orber/test/orber_test_server_impl.erl
index 10a9caf242..9aa12e98fb 100644
--- a/lib/orber/test/orber_test_server_impl.erl
+++ b/lib/orber/test/orber_test_server_impl.erl
@@ -243,22 +243,22 @@ relay_cast(_Self, State, Target) ->
 
 %% Testing pseudo calls.
 pseudo_call(_Self, State) ->
-    io:format("orber_test_server:pseudo_call( ~p )~n", [now()]),
+    io:format("orber_test_server:pseudo_call( ~p )~n", [erlang:timestamp()]),
     {reply, ok, State}.
 
 pseudo_cast(_Self, State) ->
-    io:format("orber_test_server:pseudo_cast( ~p )~n", [now()]),
+    io:format("orber_test_server:pseudo_cast( ~p )~n", [erlang:timestamp()]),
     {noreply, State}.
 pseudo_call_delay(_Self, State, Time) ->
-    io:format("orber_test_server:pseudo_call_delay( ~p )~n", [now()]),
+    io:format("orber_test_server:pseudo_call_delay( ~p )~n", [erlang:timestamp()]),
     timer:sleep(Time),
-    io:format("orber_test_server:pseudo_call_delay( ~p )~n", [now()]),
+    io:format("orber_test_server:pseudo_call_delay( ~p )~n", [erlang:timestamp()]),
     {reply, {ok, Time}, State}.
 
 pseudo_cast_delay(_Self, State, Time) ->
-    io:format("orber_test_server:pseudo_cast_delay( ~p )~n", [now()]),
+    io:format("orber_test_server:pseudo_cast_delay( ~p )~n", [erlang:timestamp()]),
     timer:sleep(Time),
-    io:format("orber_test_server:pseudo_cast_delay( ~p )~n", [now()]),
+    io:format("orber_test_server:pseudo_cast_delay( ~p )~n", [erlang:timestamp()]),
     {noreply, State}.
 
 pseudo_call_raise_exc(_Self, State, 1) ->
diff --git a/lib/orber/vsn.mk b/lib/orber/vsn.mk
index 28fe9323fb..505c77de18 100644
--- a/lib/orber/vsn.mk
+++ b/lib/orber/vsn.mk
@@ -1 +1 @@
-ORBER_VSN = 3.7.1
+ORBER_VSN = 3.8
diff --git a/lib/os_mon/c_src/cpu_sup.c b/lib/os_mon/c_src/cpu_sup.c
index e9fd75a32c..9e217db105 100644
--- a/lib/os_mon/c_src/cpu_sup.c
+++ b/lib/os_mon/c_src/cpu_sup.c
@@ -31,15 +31,28 @@
 #include <unistd.h>
 #include <string.h>
 
+#if (defined(__APPLE__) && defined(__MACH__)) || defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__DragonFly__)
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <limits.h>
+#include <fcntl.h>
+#endif
+#if defined(__FreeBSD__) || defined(__DragonFly__)
+#include <kvm.h>
+#include <sys/user.h>
+#endif
+
 #if defined(__sun__)
 #include <kstat.h>
 #endif
 
-#include <sys/sysinfo.h>
 #include <errno.h>
 
+#if defined(__sun__) || defined(__linux__)
+#include <sys/sysinfo.h>
+#endif
+
 #if defined(__linux__)
-#include <string.h>  /* strlen */
 
 #define PROCSTAT "/proc/stat"
 #define BUFFERSIZE (256)
@@ -59,6 +72,13 @@ typedef struct {
 
 #endif
 
+#if defined(__FreeBSD__)
+#include <sys/resource.h>
+#include <sys/sysctl.h>
+#define CU_BSD_VALUES (6)
+#endif
+
+
 #define FD_IN		(0)
 #define FD_OUT		(1)
 #define FD_ERR		(2)
@@ -124,10 +144,15 @@ static void util_measure(unsigned int **result_vec, int *result_sz);
 #if defined(__sun__)
 static unsigned int misc_measure(char* name);
 #endif
-static void send(unsigned int data);
+static void sendi(unsigned int data);
 static void sendv(unsigned int data[], int ints);
 static void error(char* err_msg);
 
+#if (defined(__APPLE__) && defined(__MACH__)) || defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__DragonFly__)
+static void bsd_count_procs(void);
+static void bsd_loadavg(int);
+#endif
+
 #if defined(__sun__)
 static kstat_ctl_t *kstat_ctl;
 #endif
@@ -138,12 +163,16 @@ static int processors_online() {
 }
 #endif
 
+#if defined(__FreeBSD__)
+void getsysctl(const char *, void *, size_t);
+#endif
+
 int main(int argc, char** argv) {
   char cmd;
   int rc;
   int sz;
   unsigned int *rv;
-#if defined(__linux__)
+#if defined(__linux__) || defined(__FreeBSD__)
   unsigned int no_of_cpus = 0;
 #endif
 
@@ -156,7 +185,14 @@ int main(int argc, char** argv) {
 #if defined(__linux__)
     no_of_cpus = processors_online(); 
     if ( (rv = (unsigned int*)malloc(sizeof(unsigned int)*(2 + 2*no_of_cpus*CU_VALUES))) == NULL) {
-	error("cpu_cup: malloc error");
+	error("cpu_sup: malloc error");
+    }
+#endif
+
+#if defined(__FreeBSD__)
+    getsysctl("hw.ncpu", &no_of_cpus, sizeof(int));
+    if ( (rv = (unsigned int*)malloc(sizeof(unsigned int)*(2 + 2*no_of_cpus*CU_BSD_VALUES))) == NULL) {
+	error("cpu_sup: malloc error");
     }
 #endif
 
@@ -173,20 +209,104 @@ int main(int argc, char** argv) {
       error("Erlang has closed");
     
     switch(cmd) {
-    case PING:		send(4711);					break;
+    case PING:		sendi(4711);					break;
 #if defined(__sun__)
-    case NPROCS:	send(misc_measure("nproc"));			break;
-    case AVG1:		send(misc_measure("avenrun_1min"));		break;
-    case AVG5:		send(misc_measure("avenrun_5min"));		break;
-    case AVG15:		send(misc_measure("avenrun_15min"));		break;
+    case NPROCS:	sendi(misc_measure("nproc"));			break;
+    case AVG1:		sendi(misc_measure("avenrun_1min"));		break;
+    case AVG5:		sendi(misc_measure("avenrun_5min"));		break;
+    case AVG15:		sendi(misc_measure("avenrun_15min"));		break;
+#elif defined(__OpenBSD__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD__) || defined(__DragonFly__)
+    case NPROCS:	bsd_count_procs();				break;
+    case AVG1:		bsd_loadavg(0);					break;
+    case AVG5:		bsd_loadavg(1);					break;
+    case AVG15:		bsd_loadavg(2);					break;
 #endif
+#if defined(__sun__) || defined(__linux__) || defined(__FreeBSD__)
     case UTIL:		util_measure(&rv,&sz); 	sendv(rv, sz);		break;
+#endif
     case QUIT:		free((void*)rv); return 0;
     default:		error("Bad command");				break;
     }
   }
-  return 0; /* supress warnings */
+  return 0; /* suppress warnings */
+}
+
+/* ---------------------------- *
+ *     BSD stat functions 	*
+ * ---------------------------- */
+#if defined(__OpenBSD__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD__) || defined(__DragonFly__)
+
+static void bsd_loadavg(int idx) {
+    double avgs[3];
+    if (getloadavg(avgs, 3) < 0) {
+	error(strerror(errno));
+	return;
+    }
+    sendi((unsigned int)(avgs[idx] * 256));
+}
+
+#endif
+
+#if defined(__OpenBSD__)
+
+static void bsd_count_procs(void) {
+    int err, nproc;
+    size_t len = sizeof(nproc);
+    int mib[] = { CTL_KERN, KERN_NPROCS };
+
+    err = sysctl(mib, sizeof(mib) / sizeof(mib[0]), &nproc, &len, NULL, 0);
+    if (err) {
+	error(strerror(errno));
+	return;
+    }
+
+    sendi((unsigned int)nproc);
+}
+
+#elif defined(__FreeBSD__) || defined(__DragonFly__)
+
+static void bsd_count_procs(void) {
+    kvm_t *kd;
+    struct kinfo_proc *kp;
+    char err[_POSIX2_LINE_MAX];
+    int cnt = 0;
+
+    if ((kd = kvm_open(NULL, "/dev/null", NULL, O_RDONLY, err)) == NULL) {
+	error(err);
+	return;
+    }
+
+#if defined(KERN_PROC_PROC)
+    if ((kp = kvm_getprocs(kd, KERN_PROC_PROC, 0, &cnt)) == NULL) {
+#else
+    if ((kp = kvm_getprocs(kd, KERN_PROC_ALL, 0, &cnt)) == NULL) {
+#endif
+	error(strerror(errno));
+	return;
+    }
+
+    (void)kvm_close(kd);
+    sendi((unsigned int)cnt);
 }
+
+#elif (defined(__APPLE__) && defined(__MACH__))
+
+static void bsd_count_procs(void) {
+    int err;
+    size_t len = 0;
+    int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_ALL };
+
+    err = sysctl(mib, sizeof(mib) / sizeof(mib[0]), NULL, &len, NULL, 0);
+    if (err) {
+	error(strerror(errno));
+	return;
+    }
+
+    sendi((unsigned int)(len / sizeof(struct kinfo_proc)));
+}
+
+#endif
+
 /* ---------------------------- *
  *     Linux stat functions 	*
  * ---------------------------- */
@@ -417,10 +537,75 @@ static void util_measure(unsigned int **result_vec, int *result_sz) {
 #endif
 
 /* ---------------------------- *
+ *     FreeBSD stat functions 	*
+ * ---------------------------- */
+
+#if defined(__FreeBSD__)
+
+#define EXIT_WITH(msg) (rich_error(msg, __FILE__, __LINE__))
+#define RICH_BUFLEN    (213)  /* left in error(char*) */
+
+void rich_error(const char *reason, const char *file, const int line) {
+    char buf[RICH_BUFLEN];
+    snprintf(buf, RICH_BUFLEN, "%s (%s:%i)", reason, file, line);
+    error(buf);
+}
+#undef RICH_BUFLEN
+
+static void util_measure(unsigned int **result_vec, int *result_sz) {
+    int no_of_cpus;
+    size_t size_cpu_times;
+    unsigned long *cpu_times;
+    unsigned int *rv = NULL;
+    int i;
+
+    getsysctl("hw.ncpu", &no_of_cpus, sizeof(int));
+    /* Header constant CPUSTATES = #long values per cpu. */
+    size_cpu_times = sizeof(long) * CPUSTATES * no_of_cpus;
+    cpu_times = malloc(size_cpu_times);
+    if (!cpu_times) {
+	EXIT_WITH("badalloc");
+    }
+    getsysctl("kern.cp_times", cpu_times, size_cpu_times);
+
+    rv = *result_vec;
+    rv[0] = no_of_cpus;
+    rv[1] = CU_BSD_VALUES;
+    ++rv; /* first value is number of cpus */
+    ++rv; /* second value is number of entries */
+
+    for (i = 0; i < no_of_cpus; ++i) {
+        int offset = i * CPUSTATES;
+	rv[ 0] = CU_CPU_ID;    rv[ 1] = i;
+	rv[ 2] = CU_USER;      rv[ 3] = cpu_times[CP_USER + offset];
+	rv[ 4] = CU_NICE_USER; rv[ 5] = cpu_times[CP_NICE + offset];
+	rv[ 6] = CU_KERNEL;    rv[ 7] = cpu_times[CP_SYS + offset];
+	rv[ 8] = CU_IDLE;      rv[ 9] = cpu_times[CP_IDLE + offset];
+	rv[10] = CU_HARD_IRQ;  rv[11] = cpu_times[CP_INTR + offset];
+	rv += CU_BSD_VALUES*2;
+    }
+
+    *result_sz = 2 + 2*CU_BSD_VALUES * no_of_cpus;
+}
+
+void getsysctl(const char *name, void *ptr, size_t len)
+{
+    size_t gotlen = len;
+    if (sysctlbyname(name, ptr, &gotlen, NULL, 0) != 0) {
+	EXIT_WITH("sysctlbyname failed");
+    }
+    if (gotlen != len) {
+	EXIT_WITH("sysctlbyname: unexpected length");
+    }
+}
+#endif
+
+
+/* ---------------------------- *
  *	 Generic functions 	*
  * ---------------------------- */
 
-static void send(unsigned int data) { sendv(&data, 1); }
+static void sendi(unsigned int data) { sendv(&data, 1); }
 
 static void sendv(unsigned int data[], int ints) {
     static unsigned char *buf = NULL;
@@ -474,8 +659,7 @@ static void error(char* err_msg) {
   buffer[i++] = '\n';
 
   /* try to use one write only */
-  if(write(FD_ERR, buffer, i));
+  if(write(FD_ERR, buffer, i))
+     ;
   exit(-1);
 }
-
-
diff --git a/lib/os_mon/doc/src/cpu_sup.xml b/lib/os_mon/doc/src/cpu_sup.xml
index 59da876208..4a8f5bffa0 100644
--- a/lib/os_mon/doc/src/cpu_sup.xml
+++ b/lib/os_mon/doc/src/cpu_sup.xml
@@ -34,7 +34,7 @@
       and CPU utilization. It is part of the OS_Mon application, see
       <seealso marker="os_mon_app">os_mon(6)</seealso>. Available for Unix,
       although CPU utilization values (<c>util/0,1</c>) are only
-      available for Solaris and Linux.</p>
+      available for Solaris, Linux and FreeBSD.</p>
     <p>The load values are proportional to how long time a runnable
       Unix process has to spend in the run queue before it is scheduled.
       Accordingly, higher values mean more system load. The returned
diff --git a/lib/os_mon/src/cpu_sup.erl b/lib/os_mon/src/cpu_sup.erl
index 66e7973e7e..d8cfd845bc 100644
--- a/lib/os_mon/src/cpu_sup.erl
+++ b/lib/os_mon/src/cpu_sup.erl
@@ -121,7 +121,7 @@ util(Args) when is_list (Args) ->
 util(_) ->
     erlang:error(badarg).
 
--spec util() -> float().
+-spec util() -> float() | {'error', any()}.
 
 util() ->
     case util([]) of
@@ -160,7 +160,8 @@ handle_call(?quit, _From, State) ->
 handle_call({?util, D, PC}, {Client, _Tag},
 	#state{os_type = {unix, Flavor}} = State) 
 	when Flavor == sunos;
-	     Flavor == linux ->
+	     Flavor == linux;
+	     Flavor == freebsd ->
     case measurement_server_call(State#state.server, {?util, D, PC, Client}) of
 	{error, Reason} -> 
 	    {	reply, 
@@ -217,8 +218,6 @@ code_change(_OldVsn, State, _Extra) ->
 %% internal functions 
 %%----------------------------------------------------------------------
 
-get_uint32_measurement(Request, #internal{port = P, os_type = {unix, sunos}}) ->
-    port_server_call(P, Request);
 get_uint32_measurement(Request, #internal{os_type = {unix, linux}}) ->
     {ok,F} = file:open("/proc/loadavg",[read,raw]),
     {ok,D} = file:read_line(F),
@@ -231,67 +230,13 @@ get_uint32_measurement(Request, #internal{os_type = {unix, linux}}) ->
 	?ping -> 4711;
 	?nprocs -> PTotal
     end;
-get_uint32_measurement(Request, #internal{os_type = {unix, freebsd}}) ->
-    D = os:cmd("/sbin/sysctl -n vm.loadavg") -- "\n",
-    {ok,[Load1,Load5,Load15],_} = io_lib:fread("{ ~f ~f ~f }", D),
-    %% We could count the lines from the ps command as well
-    case Request of
-	?avg1  -> sunify(Load1);
-	?avg5  -> sunify(Load5);
-	?avg15 -> sunify(Load15);
-	?ping -> 4711;
-	?nprocs ->
-	    Ps = os:cmd("/bin/ps -ax | /usr/bin/wc -l"),
-	    {ok, [N], _} = io_lib:fread("~d", Ps),
-	    N-1
-    end;
-get_uint32_measurement(Request, #internal{os_type = {unix, dragonfly}}) ->
-    D = os:cmd("/sbin/sysctl -n vm.loadavg") -- "\n",
-    {ok,[Load1,Load5,Load15],_} = io_lib:fread("{ ~f ~f ~f }", D),
-    %% We could count the lines from the ps command as well
-    case Request of
-	?avg1  -> sunify(Load1);
-	?avg5  -> sunify(Load5);
-	?avg15 -> sunify(Load15);
-	?ping -> 4711;
-	?nprocs ->
-	    Ps = os:cmd("/bin/ps -ax | /usr/bin/wc -l"),
-	    {ok, [N], _} = io_lib:fread("~d", Ps),
-	    N-1
-    end;
-get_uint32_measurement(Request, #internal{os_type = {unix, openbsd}}) ->
-    D = os:cmd("/sbin/sysctl -n vm.loadavg") -- "\n",
-    {ok, [L1, L5, L15], _} = io_lib:fread("~f ~f ~f", D),
-    case Request of
-	?avg1  -> sunify(L1);
-	?avg5  -> sunify(L5);
-	?avg15 -> sunify(L15);
-	?ping -> 4711;
-	?nprocs ->
-	    Ps = os:cmd("/bin/ps -ax | /usr/bin/wc -l"),
-	    {ok, [N], _} = io_lib:fread("~d", Ps),
-	    N-1
-    end;
-get_uint32_measurement(Request, #internal{os_type = {unix, darwin}}) ->
-    %% Get the load average using uptime, overriding Locale setting.
-    D = os:cmd("LANG=C LC_ALL=C uptime") -- "\n",
-    %% Here is a sample uptime string from Mac OS 10.3.8 (C Locale):
-    %%    "11:17  up 12 days, 20:39, 2 users, load averages: 1.07 0.95 0.66"
-    %% The safest way to extract the load averages seems to be grab everything
-    %% after the last colon and then do an fread on that.
-    Avg = lists:reverse(hd(string:tokens(lists:reverse(D), ":"))),
-    {ok,[L1,L5,L15],_} = io_lib:fread("~f ~f ~f", Avg),
-
-    case Request of
-	?avg1  -> sunify(L1);
-	?avg5  -> sunify(L5);
-	?avg15 -> sunify(L15);
-	?ping -> 4711;
-	?nprocs ->
-	    Ps = os:cmd("/bin/ps -ax | /usr/bin/wc -l"),
-	    {ok, [N], _} = io_lib:fread("~d", Ps),
-	    N-1
-    end;
+get_uint32_measurement(Request, #internal{port = P, os_type = {unix, Sys}}) when
+								Sys == sunos;
+								Sys == dragonfly;
+								Sys == openbsd;
+								Sys == freebsd;
+								Sys == darwin ->
+    port_server_call(P, Request);
 get_uint32_measurement(Request, #internal{os_type = {unix, Sys}}) when Sys == irix64;
 								 Sys == irix ->
     %% Get the load average using uptime.
@@ -541,14 +486,16 @@ measurement_server_init() ->
     process_flag(trap_exit, true),
     OS = os:type(),
     Server = case OS of
-	{unix, Flavor} when Flavor==sunos;
-			    Flavor==linux ->
-	    {ok, Pid} = port_server_start_link(),
-	    Pid;
-	{unix, Flavor} when Flavor==darwin;
+	{unix, Flavor} when
+			    Flavor==sunos;
+			    Flavor==linux;
+			    Flavor==darwin;
 			    Flavor==freebsd;
 			    Flavor==dragonfly;
-			    Flavor==openbsd;
+			    Flavor==openbsd ->
+	    {ok, Pid} = port_server_start_link(),
+	    Pid;
+	{unix, Flavor} when
 			    Flavor==irix64;
 			    Flavor==irix ->
 	    not_used;
diff --git a/lib/os_mon/test/cpu_sup_SUITE.erl b/lib/os_mon/test/cpu_sup_SUITE.erl
index 9f58e043db..7da819379c 100644
--- a/lib/os_mon/test/cpu_sup_SUITE.erl
+++ b/lib/os_mon/test/cpu_sup_SUITE.erl
@@ -64,6 +64,8 @@ all() ->
 	    [load_api, util_api, util_values, port, unavailable];
 	{unix, linux} ->
 	    [load_api, util_api, util_values, port, unavailable];
+	{unix, freebsd} ->
+	    [load_api, util_api, util_values, port, unavailable];
 	{unix, _OSname} -> [load_api];
 	_OS -> [unavailable]
     end.
diff --git a/lib/os_mon/vsn.mk b/lib/os_mon/vsn.mk
index 833e855e0e..7f2667e40a 100644
--- a/lib/os_mon/vsn.mk
+++ b/lib/os_mon/vsn.mk
@@ -1 +1 @@
-OS_MON_VSN = 2.3.1
+OS_MON_VSN = 2.4
diff --git a/lib/parsetools/include/leexinc.hrl b/lib/parsetools/include/leexinc.hrl
index 938aef58f9..2657fdcfaa 100644
--- a/lib/parsetools/include/leexinc.hrl
+++ b/lib/parsetools/include/leexinc.hrl
@@ -44,6 +44,8 @@ string(Ics0, L0, Tcs, Ts) ->
 %% Test for and remove the end token wrapper. Push back characters
 %% are prepended to RestChars.
 
+-dialyzer({nowarn_function, string_cont/4}).
+
 string_cont(Rest, Line, {token,T}, Ts) ->
     string(Rest, Line, Rest, [T|Ts]);
 string_cont(Rest, Line, {token,T,Push}, Ts) ->
@@ -113,6 +115,8 @@ token(S0, Ics0, L0, Tcs, Tlen0, Tline, A0, Alen0) ->
 %% If we have a token or error then return done, else if we have a
 %% skip_token then continue.
 
+-dialyzer({nowarn_function, token_cont/3}).
+
 token_cont(Rest, Line, {token,T}) ->
     {done,{ok,T,Line},Rest};
 token_cont(Rest, Line, {token,T,Push}) ->
@@ -187,6 +191,8 @@ tokens(S0, Ics0, L0, Tcs, Tlen0, Tline, Ts, A0, Alen0) ->
 %% a token then save it and continue, else if we have a skip_token
 %% just continue.
 
+-dialyzer({nowarn_function, tokens_cont/4}).
+
 tokens_cont(Rest, Line, {token,T}, Ts) ->
     tokens(yystate(), Rest, Line, Rest, 0, Line, [T|Ts], reject, 0);
 tokens_cont(Rest, Line, {token,T,Push}, Ts) ->
@@ -238,6 +244,8 @@ skip_tokens(S0, Ics0, L0, Tcs, Tlen0, Tline, Error, A0, Alen0) ->
 %% Skip tokens until we have an end_token or error then return done
 %% with the original rror.
 
+-dialyzer({nowarn_function, skip_cont/4}).
+
 skip_cont(Rest, Line, {token,_T}, Error) ->
     skip_tokens(yystate(), Rest, Line, Rest, 0, Line, Error, reject, 0);
 skip_cont(Rest, Line, {token,_T,Push}, Error) ->
diff --git a/lib/parsetools/include/yeccpre.hrl b/lib/parsetools/include/yeccpre.hrl
index 855bff5fdc..b9bba9a7c2 100644
--- a/lib/parsetools/include/yeccpre.hrl
+++ b/lib/parsetools/include/yeccpre.hrl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -124,21 +124,10 @@ yecc_end(Line) ->
     {'$end', Line}.
 
 yecctoken_end_location(Token) ->
-    try
-        {text, Str} = erl_scan:token_info(Token, text),
-        {line, Line} = erl_scan:token_info(Token, line),
-        Parts = re:split(Str, "\n"),
-        Dline = length(Parts) - 1,
-        Yline = Line + Dline,
-        case erl_scan:token_info(Token, column) of
-            {column, Column} ->
-                Col = byte_size(lists:last(Parts)),
-                {Yline, Col + if Dline =:= 0 -> Column; true -> 1 end};
-            undefined ->
-                Yline
-        end
-    catch _:_ ->
-        yecctoken_location(Token)
+    try erl_anno:end_location(element(2, Token)) of
+        undefined -> yecctoken_location(Token);
+        Loc -> Loc
+    catch _:_ -> yecctoken_location(Token)
     end.
 
 -compile({nowarn_unused_function, yeccerror/1}).
@@ -149,15 +138,15 @@ yeccerror(Token) ->
 
 -compile({nowarn_unused_function, yecctoken_to_string/1}).
 yecctoken_to_string(Token) ->
-    case catch erl_scan:token_info(Token, text) of
-        {text, Txt} -> Txt;
-        _ -> yecctoken2string(Token)
+    try erl_scan:text(Token) of
+        undefined -> yecctoken2string(Token);
+        Txt -> Txt
+    catch _:_ -> yecctoken2string(Token)
     end.
 
 yecctoken_location(Token) ->
-    case catch erl_scan:token_info(Token, location) of
-        {location, Loc} -> Loc;
-        _ -> element(2, Token)
+    try erl_scan:location(Token)
+    catch _:_ -> element(2, Token)
     end.
 
 -compile({nowarn_unused_function, yecctoken2string/1}).
diff --git a/lib/parsetools/src/leex.erl b/lib/parsetools/src/leex.erl
index 03f864ff03..15d42a4d9c 100644
--- a/lib/parsetools/src/leex.erl
+++ b/lib/parsetools/src/leex.erl
@@ -1545,7 +1545,7 @@ out_action_code(File, XrlFile, {_A,Code,_Vars,Name,Args,ArgsChars}) ->
     %% Should set the file to the .erl file, but instead assumes that
     %% ?LEEXINC is syntactically correct.
     io:fwrite(File, "\n-compile({inline,~w/~w}).\n", [Name, length(Args)]),
-    {line, L} = erl_scan:token_info(hd(Code), line),
+    L = erl_scan:line(hd(Code)),
     output_file_directive(File, XrlFile, L-2),
     io:fwrite(File, "~s(~s) ->~n", [Name, ArgsChars]),
     io:fwrite(File, "    ~s\n", [pp_tokens(Code, L)]).
@@ -1557,7 +1557,7 @@ pp_tokens(Tokens, Line0) -> pp_tokens(Tokens, Line0, none).
     
 pp_tokens([], _Line0, _) -> [];
 pp_tokens([T | Ts], Line0, Prev) ->
-    {line, Line} = erl_scan:token_info(T, line),
+    Line = erl_scan:line(T),
     [pp_sep(Line, Line0, Prev, T), pp_symbol(T) | pp_tokens(Ts, Line, T)].
 
 pp_symbol({var,_,Var}) -> atom_to_list(Var);
diff --git a/lib/parsetools/src/parsetools.app.src b/lib/parsetools/src/parsetools.app.src
index 9eeb8fcc05..a7b258820a 100644
--- a/lib/parsetools/src/parsetools.app.src
+++ b/lib/parsetools/src/parsetools.app.src
@@ -12,7 +12,7 @@
   {env, [{file_util_search_methods,[{"", ""}, {"ebin", "esrc"}, {"ebin", "src"}]}
 	]
   },
-  {runtime_dependencies, ["stdlib-2.0","kernel-3.0","erts-6.0"]}
+  {runtime_dependencies, ["stdlib-2.5","kernel-3.0","erts-6.0"]}
  ]
 }. 
  
diff --git a/lib/parsetools/src/yecc.erl b/lib/parsetools/src/yecc.erl
index f4657663e6..3fcec73ce2 100644
--- a/lib/parsetools/src/yecc.erl
+++ b/lib/parsetools/src/yecc.erl
@@ -2064,11 +2064,13 @@ output_actions(St0, StateJumps, StateInfo) ->
     SelS = [{State,Called} || 
                {{State,_JActions}, {State,Called}} <- 
                    lists:zip(StateJumps, lists:keysort(1, Sel))],
+    St05 =
+        fwrite(St0, <<"-dialyzer({nowarn_function, yeccpars2/7}).\n">>, []),
     St10 = foldl(fun({State, Called}, St_0) ->
                          {State, #state_info{state_repr = IState}} = 
                              lookup_state(StateInfo, State),
                          output_state_selection(St_0, State, IState, Called)
-            end, St0, SelS),
+            end, St05, SelS),
     St20 = fwrite(St10, <<"yeccpars2(Other, _, _, _, _, _, _) ->\n">>, []),
     St = fwrite(St20,
                 ?YECC_BUG(<<"{missing_state_in_action_table, Other}">>, []),
@@ -2089,7 +2091,8 @@ output_state_selection(St0, State, IState, Called) ->
            [Comment, IState]).
 
 output_state_actions(St, State, State, {Actions,jump_none}, SI) ->
-    output_state_actions1(St, State, Actions, true, normal, SI);
+    St1 = output_state_actions_begin(St, State, Actions),
+    output_state_actions1(St1, State, Actions, true, normal, SI);
 output_state_actions(St0, State, State, {Actions, Jump}, SI) ->
     {Tag, To, Common} = Jump,
     CS = case Tag of
@@ -2099,13 +2102,22 @@ output_state_actions(St0, State, State, {Actions, Jump}, SI) ->
     St = output_state_actions1(St0, State, Actions, true, {to, CS}, SI),
     if 
         To =:= State ->
-            output_state_actions1(St, CS, Common, true, normal, SI);
+            St1 = output_state_actions_begin(St, State, Actions),
+            output_state_actions1(St1, CS, Common, true, normal, SI);
         true ->
             St
     end;
 output_state_actions(St, State, JState, _XActions, _SI) ->
     fwrite(St, <<"%% yeccpars2_~w: see yeccpars2_~w\n\n">>, [State, JState]).
 
+output_state_actions_begin(St, State, Actions) ->
+    case [yes || {_, #reduce{}} <- Actions] of
+        [] ->
+            fwrite(St, <<"-dialyzer({nowarn_function, yeccpars2_~w/7}).\n">>,
+                   [State]); % Only when yeccerror(T) is output.
+        _ -> St
+    end.
+
 output_state_actions1(St, State, [], IsFirst, normal, _SI) ->
     output_state_actions_fini(State, IsFirst, St);
 output_state_actions1(St0, State, [], IsFirst, {to, ToS}, _SI) ->
diff --git a/lib/parsetools/src/yeccgramm.yrl b/lib/parsetools/src/yeccgramm.yrl
index 562a9a7458..d76ebfc569 100644
--- a/lib/parsetools/src/yeccgramm.yrl
+++ b/lib/parsetools/src/yeccgramm.yrl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1996-2009. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -38,8 +38,8 @@ rule -> head '->' symbols attached_code dot: {rule, ['$1' | '$3'], '$4'}.
 head -> symbol : '$1'.
 symbols -> symbol : ['$1'].
 symbols -> symbol symbols : ['$1' | '$2'].
-strings -> string : ['$1'].
-strings -> string strings : ['$1' | '$2'].
+strings -> string : [string('$1')].
+strings -> string strings : [string('$1') | '$2'].
 attached_code -> ':' tokens : {erlang_code, '$2'}.
 attached_code -> '$empty' : {erlang_code, [{atom, 0, '$undefined'}]}.
 tokens -> token : ['$1'].
@@ -48,12 +48,12 @@ symbol -> var : symbol('$1').
 symbol -> atom : symbol('$1').
 symbol -> integer : symbol('$1').
 symbol -> reserved_word : symbol('$1').
-token -> var : '$1'.
-token -> atom : '$1'.
-token -> float : '$1'.
-token -> integer : '$1'.
-token -> string : '$1'.
-token -> char : '$1'.
+token -> var : token('$1').
+token -> atom : token('$1').
+token -> float : token('$1').
+token -> integer : token('$1').
+token -> string : token('$1').
+token -> char : token('$1').
 token -> reserved_symbol : {value_of('$1'), line_of('$1')}.
 token -> reserved_word : {value_of('$1'), line_of('$1')}.
 token -> '->' : {'->', line_of('$1')}. % Have to be treated in this
@@ -67,8 +67,14 @@ Erlang code.
 symbol(Symbol) ->
     #symbol{line = line_of(Symbol), name = value_of(Symbol)}.
 
+token(Token) ->
+    setelement(2, Token, line_of(Token)).
+
+string(Token) ->
+    setelement(2, Token, line_of(Token)).
+
 value_of(Token) ->
     element(3, Token).
 
 line_of(Token) ->
-    element(2, Token).
+    erl_anno:line(element(2, Token)).
diff --git a/lib/parsetools/src/yeccparser.erl b/lib/parsetools/src/yeccparser.erl
index 54f9ba5a58..fa0a1c4e2a 100644
--- a/lib/parsetools/src/yeccparser.erl
+++ b/lib/parsetools/src/yeccparser.erl
@@ -7,17 +7,23 @@
 symbol(Symbol) ->
     #symbol{line = line_of(Symbol), name = value_of(Symbol)}.
 
+token(Token) ->
+    setelement(2, Token, line_of(Token)).
+
+string(Token) ->
+    setelement(2, Token, line_of(Token)).
+
 value_of(Token) ->
     element(3, Token).
 
 line_of(Token) ->
-    element(2, Token).
+    erl_anno:line(element(2, Token)).
 
--file("/clearcase/otp/erts/lib/parsetools/include/yeccpre.hrl", 0).
+-file("lib/parsetools/include/yeccpre.hrl", 0).
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -44,10 +50,11 @@ parse(Tokens) ->
 
 -spec parse_and_scan({function() | {atom(), atom()}, [_]}
                      | {atom(), atom(), [_]}) -> yecc_ret().
-parse_and_scan({F, A}) -> % Fun or {M, F}
+parse_and_scan({F, A}) ->
     yeccpars0([], {{F, A}, no_line}, 0, [], []);
 parse_and_scan({M, F, A}) ->
-    yeccpars0([], {{{M, F}, A}, no_line}, 0, [], []).
+    Arity = length(A),
+    yeccpars0([], {{fun M:F/Arity, A}, no_line}, 0, [], []).
 
 -spec format_error(any()) -> [char() | list()].
 format_error(Message) ->
@@ -140,13 +147,13 @@ yecc_end(Line) ->
 
 yecctoken_end_location(Token) ->
     try
-        {text, Str} = erl_scan:token_info(Token, text),
-        {line, Line} = erl_scan:token_info(Token, line),
+        Str = erl_scan:text(Token),
+        Line = erl_scan:line(Token),
         Parts = re:split(Str, "\n"),
         Dline = length(Parts) - 1,
         Yline = Line + Dline,
-        case erl_scan:token_info(Token, column) of
-            {column, Column} ->
+        case erl_scan:column(Token) of
+            Column when is_integer(Column) ->
                 Col = byte_size(lists:last(Parts)),
                 {Yline, Col + if Dline =:= 0 -> Column; true -> 1 end};
             undefined ->
@@ -156,23 +163,26 @@ yecctoken_end_location(Token) ->
         yecctoken_location(Token)
     end.
 
+-compile({nowarn_unused_function, yeccerror/1}).
 yeccerror(Token) ->
     Text = yecctoken_to_string(Token),
     Location = yecctoken_location(Token),
     {error, {Location, ?MODULE, ["syntax error before: ", Text]}}.
 
+-compile({nowarn_unused_function, yecctoken_to_string/1}).
 yecctoken_to_string(Token) ->
-    case catch erl_scan:token_info(Token, text) of
-        {text, Txt} -> Txt;
+    case catch erl_scan:text(Token) of
+        Txt when is_list(Txt) -> Txt;
         _ -> yecctoken2string(Token)
     end.
 
 yecctoken_location(Token) ->
-    case catch erl_scan:token_info(Token, location) of
-        {location, Loc} -> Loc;
+    case catch erl_scan:location(Token) of
+        Loc when Loc =/= undefined -> Loc;
         _ -> element(2, Token)
     end.
 
+-compile({nowarn_unused_function, yecctoken2string/1}).
 yecctoken2string({atom, _, A}) -> io_lib:write(A);
 yecctoken2string({integer,_,N}) -> io_lib:write(N);
 yecctoken2string({float,_,F}) -> io_lib:write(F);
@@ -180,7 +190,7 @@ yecctoken2string({char,_,C}) -> io_lib:write_char(C);
 yecctoken2string({var,_,V}) -> io_lib:format("~s", [V]);
 yecctoken2string({string,_,S}) -> io_lib:write_string(S);
 yecctoken2string({reserved_symbol, _, A}) -> io_lib:write(A);
-yecctoken2string({_Cat, _, Val}) -> io_lib:write(Val);
+yecctoken2string({_Cat, _, Val}) -> io_lib:format("~p",[Val]);
 yecctoken2string({dot, _}) -> "'.'";
 yecctoken2string({'$end', _}) ->
     [];
@@ -193,7 +203,7 @@ yecctoken2string(Other) ->
 
 
 
--file("yeccparser.erl", 196).
+-file("yeccgramm.erl", 207).
 
 yeccpars2(0=S, Cat, Ss, Stack, T, Ts, Tzr) ->
  yeccpars2_0(S, Cat, Ss, Stack, T, Ts, Tzr);
@@ -268,7 +278,7 @@ yeccpars2(34=S, Cat, Ss, Stack, T, Ts, Tzr) ->
 yeccpars2(35=S, Cat, Ss, Stack, T, Ts, Tzr) ->
  yeccpars2_35(S, Cat, Ss, Stack, T, Ts, Tzr);
 yeccpars2(Other, _, _, _, _, _, _) ->
- erlang:error({yecc_bug,"1.3",{missing_state_in_action_table, Other}}).
+ erlang:error({yecc_bug,"1.4",{missing_state_in_action_table, Other}}).
 
 yeccpars2_0(S, atom, Ss, Stack, T, Ts, Tzr) ->
  yeccpars1(S, 6, Ss, Stack, T, Ts, Tzr);
@@ -417,16 +427,20 @@ yeccpars2_19(_S, Cat, Ss, Stack, T, Ts, Tzr) ->
  yeccgoto_token(hd(Ss), Cat, Ss, NewStack, T, Ts, Tzr).
 
 yeccpars2_20(_S, Cat, Ss, Stack, T, Ts, Tzr) ->
- yeccgoto_token(hd(Ss), Cat, Ss, Stack, T, Ts, Tzr).
+ NewStack = yeccpars2_20_(Stack),
+ yeccgoto_token(hd(Ss), Cat, Ss, NewStack, T, Ts, Tzr).
 
 yeccpars2_21(_S, Cat, Ss, Stack, T, Ts, Tzr) ->
- yeccgoto_token(hd(Ss), Cat, Ss, Stack, T, Ts, Tzr).
+ NewStack = yeccpars2_21_(Stack),
+ yeccgoto_token(hd(Ss), Cat, Ss, NewStack, T, Ts, Tzr).
 
 yeccpars2_22(_S, Cat, Ss, Stack, T, Ts, Tzr) ->
- yeccgoto_token(hd(Ss), Cat, Ss, Stack, T, Ts, Tzr).
+ NewStack = yeccpars2_22_(Stack),
+ yeccgoto_token(hd(Ss), Cat, Ss, NewStack, T, Ts, Tzr).
 
 yeccpars2_23(_S, Cat, Ss, Stack, T, Ts, Tzr) ->
- yeccgoto_token(hd(Ss), Cat, Ss, Stack, T, Ts, Tzr).
+ NewStack = yeccpars2_23_(Stack),
+ yeccgoto_token(hd(Ss), Cat, Ss, NewStack, T, Ts, Tzr).
 
 yeccpars2_24(_S, Cat, Ss, Stack, T, Ts, Tzr) ->
  NewStack = yeccpars2_24_(Stack),
@@ -437,10 +451,12 @@ yeccpars2_25(_S, Cat, Ss, Stack, T, Ts, Tzr) ->
  yeccgoto_token(hd(Ss), Cat, Ss, NewStack, T, Ts, Tzr).
 
 yeccpars2_26(_S, Cat, Ss, Stack, T, Ts, Tzr) ->
- yeccgoto_token(hd(Ss), Cat, Ss, Stack, T, Ts, Tzr).
+ NewStack = yeccpars2_26_(Stack),
+ yeccgoto_token(hd(Ss), Cat, Ss, NewStack, T, Ts, Tzr).
 
 yeccpars2_27(_S, Cat, Ss, Stack, T, Ts, Tzr) ->
- yeccgoto_token(hd(Ss), Cat, Ss, Stack, T, Ts, Tzr).
+ NewStack = yeccpars2_27_(Stack),
+ yeccgoto_token(hd(Ss), Cat, Ss, NewStack, T, Ts, Tzr).
 
 yeccpars2_28(_S, Cat, Ss, Stack, T, Ts, Tzr) ->
  [_|Nss] = Ss,
@@ -616,6 +632,38 @@ yeccpars2_19_(__Stack0) ->
    { ':' , line_of ( __1 ) }
   end | __Stack].
 
+-compile({inline,yeccpars2_20_/1}).
+-file("yeccgramm.yrl", 48).
+yeccpars2_20_(__Stack0) ->
+ [__1 | __Stack] = __Stack0,
+ [begin
+   token ( __1 )
+  end | __Stack].
+
+-compile({inline,yeccpars2_21_/1}).
+-file("yeccgramm.yrl", 52).
+yeccpars2_21_(__Stack0) ->
+ [__1 | __Stack] = __Stack0,
+ [begin
+   token ( __1 )
+  end | __Stack].
+
+-compile({inline,yeccpars2_22_/1}).
+-file("yeccgramm.yrl", 49).
+yeccpars2_22_(__Stack0) ->
+ [__1 | __Stack] = __Stack0,
+ [begin
+   token ( __1 )
+  end | __Stack].
+
+-compile({inline,yeccpars2_23_/1}).
+-file("yeccgramm.yrl", 50).
+yeccpars2_23_(__Stack0) ->
+ [__1 | __Stack] = __Stack0,
+ [begin
+   token ( __1 )
+  end | __Stack].
+
 -compile({inline,yeccpars2_24_/1}).
 -file("yeccgramm.yrl", 53).
 yeccpars2_24_(__Stack0) ->
@@ -632,6 +680,22 @@ yeccpars2_25_(__Stack0) ->
    { value_of ( __1 ) , line_of ( __1 ) }
   end | __Stack].
 
+-compile({inline,yeccpars2_26_/1}).
+-file("yeccgramm.yrl", 51).
+yeccpars2_26_(__Stack0) ->
+ [__1 | __Stack] = __Stack0,
+ [begin
+   token ( __1 )
+  end | __Stack].
+
+-compile({inline,yeccpars2_27_/1}).
+-file("yeccgramm.yrl", 47).
+yeccpars2_27_(__Stack0) ->
+ [__1 | __Stack] = __Stack0,
+ [begin
+   token ( __1 )
+  end | __Stack].
+
 -compile({inline,yeccpars2_28_/1}).
 -file("yeccgramm.yrl", 42).
 yeccpars2_28_(__Stack0) ->
@@ -653,7 +717,7 @@ yeccpars2_29_(__Stack0) ->
 yeccpars2_32_(__Stack0) ->
  [__1 | __Stack] = __Stack0,
  [begin
-   [ __1 ]
+   [ string ( __1 ) ]
   end | __Stack].
 
 -compile({inline,yeccpars2_33_/1}).
@@ -661,7 +725,7 @@ yeccpars2_32_(__Stack0) ->
 yeccpars2_33_(__Stack0) ->
  [__2,__1 | __Stack] = __Stack0,
  [begin
-   [ __1 | __2 ]
+   [ string ( __1 ) | __2 ]
   end | __Stack].
 
 -compile({inline,yeccpars2_34_/1}).
@@ -681,4 +745,4 @@ yeccpars2_35_(__Stack0) ->
   end | __Stack].
 
 
--file("yeccgramm.yrl", 75).
+-file("yeccgramm.yrl", 82).
diff --git a/lib/parsetools/test/yecc_SUITE.erl b/lib/parsetools/test/yecc_SUITE.erl
index d308d21f82..b8d658e5c2 100644
--- a/lib/parsetools/test/yecc_SUITE.erl
+++ b/lib/parsetools/test/yecc_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2005-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2005-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -340,8 +340,8 @@ syntax(Config) when is_list(Config) ->
                           {_,[{L1,_,{undefined_function,{yeccpars2_2_,1}}},
                               {L2,_,{bad_inline,{yeccpars2_2_,1}}}]}],
                    []} = compile:file(Parserfile1, [basic_validation,return]),
-            ?line L1 = 28 + SzYeccPre,
-            ?line L2 = 35 + SzYeccPre
+            ?line L1 = 31 + SzYeccPre,
+            ?line L2 = 38 + SzYeccPre
     end(),
 
     %% Bad macro in action. OTP-7224.
@@ -358,8 +358,8 @@ syntax(Config) when is_list(Config) ->
                           {_,[{L1,_,{undefined_function,{yeccpars2_2_,1}}},
                               {L2,_,{bad_inline,{yeccpars2_2_,1}}}]}],
                    []} = compile:file(Parserfile1, [basic_validation,return]),
-            ?line L1 = 28 + SzYeccPre,
-            ?line L2 = 35 + SzYeccPre
+            ?line L1 = 31 + SzYeccPre,
+            ?line L2 = 38 + SzYeccPre
     end(),
 
     %% Check line numbers. OTP-7224.
@@ -1521,7 +1521,9 @@ otp_7945(doc) ->
     "OTP-7945. A bug introduced in R13A.";
 otp_7945(suite) -> [];
 otp_7945(Config) when is_list(Config) ->
-    ?line {error,_} = erl_parse:parse([{atom,3,foo},{'.',2,9,9}]),
+    A2 = erl_anno:new(2),
+    A3 = erl_anno:new(3),
+    {error,_} = erl_parse:parse([{atom,3,foo},{'.',A2,9,9}]),
     ok.
 
 otp_8483(doc) ->
@@ -1619,8 +1621,8 @@ otp_7292(Config) when is_list(Config) ->
                         {L2,_,{bad_inline,{yeccpars2_2_,1}}}]}],
                    [{_,[{16,_,{unused_function,{foo,0}}}]}]} = 
                 compile:file(Parserfile1, [basic_validation, return]),
-            ?line L1 = 38 + SzYeccPre,
-            ?line L2 = 45 + SzYeccPre
+            L1 = 41 + SzYeccPre,
+            L2 = 48 + SzYeccPre
     end(),
 
     YeccPre = filename:join(Dir, "yeccpre.hrl"),
@@ -1637,8 +1639,8 @@ otp_7292(Config) when is_list(Config) ->
                         {L2,_,{bad_inline,{yeccpars2_2_,1}}}]}],
                    [{_,[{16,_,{unused_function,{foo,0}}}]}]} = 
                 compile:file(Parserfile1, [basic_validation, return]),
-            ?line L1 = 37 + SzYeccPre,
-            ?line L2 = 44 + SzYeccPre
+            ?line L1 = 40 + SzYeccPre,
+            ?line L2 = 47 + SzYeccPre
     end(),
 
     file:delete(YeccPre),
@@ -1786,7 +1788,8 @@ otp_7969(Config) when is_list(Config) ->
 
     ?line {ok, Ts11, _}=R1 = erl_scan:string("f() -> a."),
     ?line F1 = fun() -> {ok,Ts11 ++ [{'$end',2}],2} end,
-    ?line{ok,{function,1,f,0,[{clause,1,[],[],[{atom,1,a}]}]}} =
+    A1 = erl_anno:new(1),
+    {ok,{function,A1,f,0,[{clause,A1,[],[],[{atom,A1,a}]}]}} =
         erl_parse:parse_and_scan({F1, []}),
     ?line F2 = fun() -> erl_scan:string("f() -> ,") end,
     ?line {error,{1,erl_parse,_}} = erl_parse:parse_and_scan({F2, []}),
@@ -1797,7 +1800,7 @@ otp_7969(Config) when is_list(Config) ->
                                 put(foo,bar), R1
                         end
                end,
-    ?line {ok,{function,1,f,0,[{clause,1,[],[],[{atom,1,a}]}]}} =
+    {ok,{function,A1,f,0,[{clause,A1,[],[],[{atom,A1,a}]}]}} =
         erl_parse:parse_and_scan({F3,[]}),
     F4 = fun() -> {error, {1, ?MODULE, bad}, 2} end,
     ?line {error, {1,?MODULE,bad}} = erl_parse:parse_and_scan({F4, []}),
@@ -1813,7 +1816,8 @@ otp_8919(doc) ->
     "OTP-8919. Improve formating of Yecc error messages.";
 otp_8919(suite) -> [];
 otp_8919(Config) when is_list(Config) ->
-    {error,{1,Mod,Mess}} = erl_parse:parse([{cat,1,"hello"}]),
+    A1 = erl_anno:new(1),
+    {error,{1,Mod,Mess}} = erl_parse:parse([{cat,A1,"hello"}]),
     "syntax error before: \"hello\"" = lists:flatten(Mod:format_error(Mess)),
     ok.
 
diff --git a/lib/parsetools/vsn.mk b/lib/parsetools/vsn.mk
index dd9cc2991c..b99b3bb713 100644
--- a/lib/parsetools/vsn.mk
+++ b/lib/parsetools/vsn.mk
@@ -1 +1 @@
-PARSETOOLS_VSN = 2.0.12
+PARSETOOLS_VSN = 2.1
diff --git a/lib/percept/src/percept.erl b/lib/percept/src/percept.erl
index 3a2d9f7601..135e20774e 100644
--- a/lib/percept/src/percept.erl
+++ b/lib/percept/src/percept.erl
@@ -319,10 +319,6 @@ get_webserver_config(Servername, Port) when is_list(Servername), is_integer(Port
 	{alias,{"/images/", filename:join([Root, "images"]) ++ "/"}},
 	{alias,{"/css/", filename:join([Root, "css"]) ++ "/"}},
 	
-	% Logs
-	%{transfer_log, filename:join([Path, "logs", "transfer.log"])},
-	%{error_log, filename:join([Path, "logs", "error.log"])},
-	
 	% Configs
 	{default_type,"text/plain"},
 	{directory_index,["index.html"]},
@@ -331,12 +327,9 @@ get_webserver_config(Servername, Port) when is_list(Servername), is_integer(Port
 	          mod_esi,
 	          mod_actions,
 	          mod_cgi,
-	          mod_include,
 	          mod_dir,
 	          mod_get,
 	          mod_head
-	%          mod_log,
-	%          mod_disk_log
 	]},
 	{com_type,ip_comm},
 	{server_name, Servername},
diff --git a/lib/public_key/asn1/Makefile b/lib/public_key/asn1/Makefile
index c1b3bc866d..11b03dc2f7 100644
--- a/lib/public_key/asn1/Makefile
+++ b/lib/public_key/asn1/Makefile
@@ -66,7 +66,7 @@ EBIN = ../ebin
 EXTRA_ERLC_FLAGS = 
 ERL_COMPILE_FLAGS += $(EXTRA_ERLC_FLAGS)
 
-ASN_FLAGS = -bber +der +compact_bit_string +noobj +asn1config
+ASN_FLAGS = -bber +der +noobj +asn1config
 
 # ----------------------------------------------------
 # Targets
diff --git a/lib/public_key/doc/src/Makefile b/lib/public_key/doc/src/Makefile
index 17fb67e95c..d04819b5aa 100644
--- a/lib/public_key/doc/src/Makefile
+++ b/lib/public_key/doc/src/Makefile
@@ -42,8 +42,7 @@ XML_REF6_FILES =
 XML_PART_FILES = part.xml part_notes.xml
 XML_CHAPTER_FILES = \
 	introduction.xml \
-	public_key_records.xml \
-	cert_records.xml \
+        public_key_records.xml \
 	using_public_key.xml \
 	notes.xml
 
diff --git a/lib/public_key/doc/src/cert_records.xml b/lib/public_key/doc/src/cert_records.xml
deleted file mode 100644
index b66c66bead..0000000000
--- a/lib/public_key/doc/src/cert_records.xml
+++ /dev/null
@@ -1,690 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE chapter SYSTEM "chapter.dtd">
-
-<chapter>
-  <header>
-    <copyright>
-      <year>2008</year>
-      <year>2014</year>
-      <holder>Ericsson AB, All Rights Reserved</holder>
-    </copyright>
-    <legalnotice>
-  The contents of this file are subject to the Erlang Public License,
-  Version 1.1, (the "License"); you may not use this file except in
-  compliance with the License. You should have received a copy of the
-  Erlang Public License along with this software. If not, it can be
-  retrieved online at http://www.erlang.org/.
-
-  Software distributed under the License is distributed on an "AS IS"
-  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-  the License for the specific language governing rights and limitations
-  under the License.
-
-  The Initial Developer of the Original Code is Ericsson AB.
-    </legalnotice>
-
-    <title>Certificate records</title>
-    <prepared>Ingela Anderton Andin</prepared>
-    <responsible></responsible>
-    <docno></docno>
-    <approved></approved>
-    <checked></checked>
-    <date>2008-02-06</date>
-    <rev>A</rev>
-    <file>cert_records.xml</file>
-  </header>
-
-  <p>This chapter briefly describes erlang records derived from ASN1
-  specifications used to handle <c> X509 certificates</c> and <c>CertificationRequest</c>.
- The intent is to describe the data types
-and not to specify the semantics of each component. For information on the
-semantics, please see <url
-  href="http://www.ietf.org/rfc/rfc5280.txt">RFC 5280</url> and
-  <url href="http://www.ietf.org/rfc/rfc5967.txt">PKCS-10</url>.
-  </p>
-
-  <p>Use the following include directive to get access to the
-    records and constant macros (OIDs) described in the following sections.</p>
-  
-  <code> -include_lib("public_key/include/public_key.hrl"). </code>
-
-  <p>The used ASN1 specifications are available <c>asn1</c> subdirectory
-    of the application <c>public_key</c>.
-  </p>
-
-  <section>
-    <title>Common Data Types</title>   
-
-    <p>Common non standard erlang
-    data types used to described the record fields in the
-    below sections are defined in <seealso
-     marker="public_key">public key reference manual </seealso> or
-    follows here.</p>
-
-    <p><c>time() = uct_time() | general_time()</c></p>
-    
-    <p><c>uct_time() = {utcTime, "YYMMDDHHMMSSZ"} </c></p>
-    
-    <p><c>general_time() = {generalTime, "YYYYMMDDHHMMSSZ"} </c></p>
-    
-    <p><c>
-      general_name() = {rfc822Name, string()} | {dNSName, string()}
-      | {x400Address, string()} | {directoryName,
-      {rdnSequence, [#AttributeTypeAndValue'{}]}} | 
-      | {eidPartyName, special_string()}
-      | {eidPartyName, special_string(), special_string()}
-      | {uniformResourceIdentifier, string()} | {ipAddress, string()} |
-      {registeredId, oid()} | {otherName, term()}
-    </c></p>
-    
-    <p><c>
-      special_string() =
-      {teletexString, string()} | {printableString, string()} |
-      {universalString, string()} | {utf8String, binary()} |
-      {bmpString, string()}     
-    </c></p>
-    
-    <p><c>
-      dist_reason() = unused | keyCompromise | cACompromise |
-      affiliationChanged | superseded | cessationOfOperation |
-      certificateHold | privilegeWithdrawn |
-      aACompromise        
-    </c></p>
-  </section>
-
- <section>
-    <title> PKIX Certificates</title>   
-<code>
-#'Certificate'{
-		tbsCertificate,        % #'TBSCertificate'{}
-		signatureAlgorithm,    % #'AlgorithmIdentifier'{} 
-		signature              % {0, binary()} - ASN1 compact bitstring
-	       }.
-
-#'TBSCertificate'{
-	  version,              % v1 | v2 | v3 
-	  serialNumber,         % integer() 
-	  signature,            % #'AlgorithmIdentifier'{} 
-	  issuer,               % {rdnSequence, [#AttributeTypeAndValue'{}]} 
-	  validity,             % #'Validity'{}
-	  subject,              % {rdnSequence, [#AttributeTypeAndValue'{}]} 
-	  subjectPublicKeyInfo, % #'SubjectPublicKeyInfo'{}
-	  issuerUniqueID,       % binary() | asn1_novalue
-	  subjectUniqueID,      % binary() | asn1_novalue
-	  extensions            % [#'Extension'{}] 
-	 }.
-	  
-#'AlgorithmIdentifier'{
-	  algorithm,  % oid() 
-	  parameters  % der_encoded()
-	 }.
-</code>
-
-<code>
-#'OTPCertificate'{
-		tbsCertificate,        % #'OTPTBSCertificate'{}
-		signatureAlgorithm,    % #'SignatureAlgorithm'
-		signature              % {0, binary()} - ASN1 compact bitstring
-	       }.
-
-#'OTPTBSCertificate'{
-	  version,              % v1 | v2 | v3 
-	  serialNumber,         % integer() 
-	  signature,            % #'SignatureAlgorithm'
-	  issuer,               % {rdnSequence, [#AttributeTypeAndValue'{}]} 
-	  validity,             % #'Validity'{}
-	  subject,              % {rdnSequence, [#AttributeTypeAndValue'{}]} 
-	  subjectPublicKeyInfo, % #'OTPSubjectPublicKeyInfo'{}
-	  issuerUniqueID,       % binary() | asn1_novalue
-	  subjectUniqueID,      % binary() | asn1_novalue
-	  extensions            % [#'Extension'{}] 
-	 }.
-	  
-#'SignatureAlgorithm'{
-	  algorithm,  % id_signature_algorithm()
-	  parameters  % asn1_novalue | #'Dss-Parms'{}
-	 }.
-</code>
-
-<p><c> id_signature_algorithm() = ?oid_name_as_erlang_atom</c> for available
-oid names see table below. Ex: ?'id-dsa-with-sha1'</p>
-<table>
-  <row>
-    <cell align="left" valign="middle">OID name</cell>
-  </row>
-  <row>
-    <cell align="left" valign="middle">id-dsa-with-sha1</cell>
-      </row>
-      <row>
-	<cell align="left" valign="middle">id-dsaWithSHA1 (ISO alt oid to above)</cell>
-      </row>
-       <row>
-	<cell align="left" valign="middle">md2WithRSAEncryption</cell>
-      </row>
-      <row>
-	<cell align="left" valign="middle">md5WithRSAEncryption</cell>
-      </row>
-      <row>
-	<cell align="left" valign="middle">sha1WithRSAEncryption</cell>
-      </row>
-      <row>
-	<cell align="left" valign="middle">sha-1WithRSAEncryption (ISO alt oid to above)</cell>
-      </row>
-      <row>
-	<cell align="left" valign="middle">sha224WithRSAEncryption</cell>
-      </row>
-       <row>
-	<cell align="left" valign="middle">sha256WithRSAEncryption</cell>
-      </row>
-     <row>
-	<cell align="left" valign="middle">sha512WithRSAEncryption</cell>
-      </row>
-        <row>
-	  <cell align="left" valign="middle">ecdsa-with-SHA1</cell>
-     </row>
-      <tcaption>Signature algorithm oids </tcaption>
-</table>
-    
-<code>
-#'AttributeTypeAndValue'{
-	  type,   % id_attributes()
-	  value   % term() 
-	 }.
-</code>
-
-<p><c>id_attributes() </c></p>
-<table>
-  <row>
-    <cell align="left" valign="middle">OID name</cell>
-    <cell align="left" valign="middle">Value type</cell>
-  </row>
-  <row>
-    <cell align="left" valign="middle">id-at-name</cell>
-    <cell align="left" valign="middle">special_string()</cell>
-  </row>      
-  <row>
-    <cell align="left" valign="middle">id-at-surname</cell>
-    <cell align="left" valign="middle">special_string()</cell>
-  </row>
-  <row>
-    <cell align="left" valign="middle">id-at-givenName</cell>
-    <cell align="left" valign="middle">special_string()</cell>
-  </row>
-  <row>
-    <cell align="left" valign="middle">id-at-initials </cell>
-    <cell align="left" valign="middle">special_string()</cell>
-  </row>
-  <row>
-    <cell align="left" valign="middle">id-at-generationQualifier</cell>
-    <cell align="left" valign="middle">special_string()</cell>
-  </row>
-  <row>
-    <cell align="left" valign="middle">id-at-commonName</cell>
-    <cell align="left" valign="middle">special_string()</cell>
-  </row>   
-  <row>
-    <cell align="left" valign="middle">id-at-localityName</cell>
-    <cell align="left" valign="middle">special_string()</cell>
-  </row>
-  <row>
-    <cell align="left" valign="middle">id-at-stateOrProvinceName</cell>
-    <cell align="left" valign="middle">special_string()</cell>
-  </row>
-  <row>
-    <cell align="left" valign="middle">id-at-organizationName</cell>
-    <cell align="left" valign="middle">special_string()</cell>
-  </row>
-  <row>
-    <cell align="left" valign="middle">id-at-title</cell>
-    <cell align="left" valign="middle">special_string()</cell>
-  </row>
-  <row>
-    <cell align="left" valign="middle">id-at-dnQualifier</cell>
-    <cell align="left" valign="middle">{printableString, string()}</cell>
-  </row>
-  <row>
-    <cell align="left" valign="middle">id-at-countryName</cell>
-    <cell align="left" valign="middle">{printableString, string()}</cell>
-  </row>
-  <row>
-    <cell align="left" valign="middle">id-at-serialNumber</cell>
-    <cell align="left" valign="middle">{printableString, string()}</cell>
-  </row>      
-  <row>
-    <cell align="left" valign="middle">id-at-pseudonym</cell>
-    <cell align="left" valign="middle">special_string()</cell>
-  </row>
-  <tcaption>Attribute oids </tcaption>
-</table>
-    
-<code>
-#'Validity'{ 
-	  notBefore, % time()
-	  notAfter   % time()
-	 }.
-	 
-#'SubjectPublicKeyInfo'{
-	  algorithm,       % #AlgorithmIdentifier{} 
-	  subjectPublicKey % binary() 
-	 }.
-
-#'SubjectPublicKeyInfoAlgorithm'{
-	  algorithm,  % id_public_key_algorithm()
-	  parameters  % public_key_params()
-	 }.
-</code>
-
-<p><c> id_public_key_algorithm() </c></p>
-<table>
-  <row>
-    <cell align="left" valign="middle">OID name</cell>
-  </row>
-  <row>
-    <cell align="left" valign="middle">rsaEncryption</cell>
-      </row>
-      <row>
-	<cell align="left" valign="middle">id-dsa</cell>
-      </row>
-      <row>
-	<cell align="left" valign="middle">dhpublicnumber</cell>
-      </row>
-      <row>
-	<cell align="left" valign="middle">id-keyExchangeAlgorithm</cell>
-      </row>
-      <row>
-	<cell align="left" valign="middle">id-ecPublicKey</cell>
-      </row>
-      <tcaption>Public key algorithm oids </tcaption>
-</table>
-    
-<code>
-#'Extension'{
-	  extnID,    % id_extensions() | oid() 
-	  critical,  % boolean()
-	  extnValue  % der_encoded()
-	 }.
-</code>
-
-<p><c>id_extensions()</c>  
-  <seealso marker="#StdCertExt">Standard Certificate Extensions</seealso>, 
-  <seealso marker="#PrivIntExt">Private Internet Extensions</seealso>,  
-  <seealso marker="#CRLCertExt">CRL Extensions</seealso> and 
-  <seealso marker="#CRLEntryExt">CRL Entry Extensions</seealso>.
-</p>
-    
-</section>
-  
-<section>
-  <marker id="StdCertExt"></marker>
-  <title>Standard certificate extensions</title>
-      
-  <table>
-      <row>
-	<cell align="left" valign="middle">OID name</cell>
-	<cell align="left" valign="middle">Value type</cell>
-      </row>
-      <row>
-	<cell align="left" valign="middle">id-ce-authorityKeyIdentifier</cell>
-	<cell align="left" valign="middle">#'AuthorityKeyIdentifier'{}</cell>
-      </row>
-      <row>
-	<cell align="left" valign="middle">id-ce-subjectKeyIdentifier</cell>
-	<cell align="left" valign="middle">oid()</cell>
-      </row>
-      <row>
-	<cell align="left" valign="middle">id-ce-keyUsage</cell>
-	<cell align="left" valign="middle"> [key_usage()]</cell>
-      </row>
-      <row>
-	<cell align="left" valign="middle">id-ce-privateKeyUsagePeriod</cell>
-	<cell align="left" valign="middle">#'PrivateKeyUsagePeriod'{}</cell>
-      </row>
-      <row>
-	<cell align="left" valign="middle">id-ce-certificatePolicies</cell>
-	<cell align="left" valign="middle">#'PolicyInformation'{}</cell>
-      </row>
-      
-      <row>
-	<cell align="left" valign="middle">id-ce-policyMappings</cell>
-	<cell align="left" valign="middle">#'PolicyMappings_SEQOF'{}</cell>
-      </row>
-      
-      <row>
-	<cell align="left" valign="middle">id-ce-subjectAltName</cell>
-	<cell align="left" valign="middle">general_name()</cell>
-      </row>
-
-      <row>
-	<cell align="left" valign="middle">id-ce-issuerAltName</cell>
-	<cell align="left" valign="middle">general_name()</cell>
-      </row>
-      
-      <row>
-	<cell align="left" valign="middle">id-ce-subjectDirectoryAttributes</cell>
-	<cell align="left" valign="middle"> [#'Attribute'{}]</cell>
-      </row>
-
-      <row>
-          <cell align="left" valign="middle">id-ce-basicConstraints</cell>
-	  <cell align="left" valign="middle">#'BasicConstraints'{}</cell>
-      </row>
-      <row>
-	<cell align="left" valign="middle">id-ce-nameConstraints</cell>
-	<cell align="left" valign="middle">#'NameConstraints'{}</cell>
-      </row>
-      <row>
-	<cell align="left" valign="middle">id-ce-policyConstraints</cell>
-	<cell align="left" valign="middle">#'PolicyConstraints'{}</cell>
-      </row>
-      <row>
-	<cell align="left" valign="middle">id-ce-extKeyUsage</cell>
-	<cell align="left" valign="middle">[id_key_purpose()]</cell>
-      </row>
-      
-      <row>
-	<cell align="left" valign="middle">id-ce-cRLDistributionPoints</cell>
-	<cell align="left" valign="middle">[#'DistributionPoint'{}]</cell>
-      </row>
-      
-      <row>
-	<cell align="left" valign="middle">id-ce-inhibitAnyPolicy</cell>
-	<cell align="left" valign="middle">integer()</cell>
-      </row>
-      
-      <row>
-	<cell align="left" valign="middle">id-ce-freshestCRL</cell>
-	<cell align="left" valign="middle">[#'DistributionPoint'{}]</cell>
-      </row>
-      
-      
-      <tcaption>Standard Certificate Extensions</tcaption>
-    </table>
-
-    <p><c>
-      key_usage() =  digitalSignature | nonRepudiation | keyEncipherment|
-      dataEncipherment | keyAgreement | keyCertSign | cRLSign | encipherOnly |
-      decipherOnly 
-    </c></p>
-   
-    <p><c> id_key_purpose()</c></p>
-    
-<table>
-  <row>
-    <cell align="left" valign="middle">OID name</cell>
-  </row>
-  <row>
-    <cell align="left" valign="middle">id-kp-serverAuth</cell>
-      </row>
-      <row>
-	<cell align="left" valign="middle">id-kp-clientAuth</cell>
-      </row>
-      <row>
-	<cell align="left" valign="middle">id-kp-codeSigning</cell>
-      </row>
-      <row>
-	<cell align="left" valign="middle">id-kp-emailProtection</cell>
-      </row>
-       <row>
-	<cell align="left" valign="middle">id-kp-timeStamping</cell>
-      </row>
-       <row>
-	<cell align="left" valign="middle">id-kp-OCSPSigning</cell>
-      </row>
-      <tcaption>Key purpose oids </tcaption>
-</table>
-    
-    <code>
-#'AuthorityKeyIdentifier'{
-	  keyIdentifier,	    % oid()
-	  authorityCertIssuer,      % general_name()
-	  authorityCertSerialNumber % integer() 
-	 }.
-
-#'PrivateKeyUsagePeriod'{
-	  notBefore,   % general_time()
-	  notAfter     % general_time()
-	 }.
-
-#'PolicyInformation'{
-	  policyIdentifier,  % oid()
-	  policyQualifiers   % [#PolicyQualifierInfo{}]
-	 }.
-
-#'PolicyQualifierInfo'{
-	  policyQualifierId,   % oid()
-	  qualifier            % string() | #'UserNotice'{}
-	 }.
-
-#'UserNotice'{
-         noticeRef,   % #'NoticeReference'{}
-	 explicitText % string()
-	 }.
-
-#'NoticeReference'{
-         organization,    % string()
-	 noticeNumbers    % [integer()]
-	 }.
-
-#'PolicyMappings_SEQOF'{
-	  issuerDomainPolicy,  % oid()
-	  subjectDomainPolicy  % oid()
-	 }.
-
-#'Attribute'{
-          type,  % oid()
-	  values % [der_encoded()]
-	  }).
-
-#'BasicConstraints'{
-	  cA,		    % boolean()
-	  pathLenConstraint % integer()
-	 }).
-
-#'NameConstraints'{
-	  permittedSubtrees, % [#'GeneralSubtree'{}]
-	  excludedSubtrees   % [#'GeneralSubtree'{}]
-	 }).
-
-#'GeneralSubtree'{
-	  base,    % general_name()
-	  minimum, % integer()
-	  maximum  % integer()
-	 }).
-
-#'PolicyConstraints'{
-	  requireExplicitPolicy, % integer()
-	  inhibitPolicyMapping   % integer()
-	 }).
-
-#'DistributionPoint'{
-	  distributionPoint, % {fullName, [general_name()]} | {nameRelativeToCRLIssuer,
-	  [#AttributeTypeAndValue{}]}
-	  reasons,           % [dist_reason()]
-	  cRLIssuer          % [general_name()]
-	 }).
-</code>
-
-</section>
-
- <section>
-   <marker id="PrivIntExt"></marker>
-   <title>Private Internet Extensions</title>   
-
-   <table>
-        <row>
-          <cell align="left" valign="middle">OID name</cell>
-          <cell align="left" valign="middle">Value type</cell>
-        </row>
-        <row>
-          <cell align="left" valign="middle">id-pe-authorityInfoAccess</cell>
-          <cell align="left" valign="middle">[#'AccessDescription'{}]</cell>
-        </row>
-	<row>
-          <cell align="left" valign="middle">id-pe-subjectInfoAccess</cell>
-          <cell align="left" valign="middle">[#'AccessDescription'{}]</cell>
-        </row>
-        <tcaption>Private Internet Extensions</tcaption>
-      </table>   
- 
-<code>
-#'AccessDescription'{
-           accessMethod,    % oid()
-	   accessLocation   % general_name()
-	 }).
-</code>
-
- </section>
- 
-<section>
-    <title> CRL and CRL Extensions Profile</title>   
-
- <code>
-#'CertificateList'{
-          tbsCertList,        % #'TBSCertList{}
-          signatureAlgorithm, % #'AlgorithmIdentifier'{} 
-          signature           % {0, binary()} - ASN1 compact bitstring
-	  }).
-
-#'TBSCertList'{
-      version,             % v2 (if defined)
-      signature,           % #AlgorithmIdentifier{}
-      issuer,              % {rdnSequence, [#AttributeTypeAndValue'{}]} 
-      thisUpdate,          % time()
-      nextUpdate,          % time() 
-      revokedCertificates, % [#'TBSCertList_revokedCertificates_SEQOF'{}]
-      crlExtensions        % [#'Extension'{}]
-      }).
-
-#'TBSCertList_revokedCertificates_SEQOF'{
-         userCertificate,      % integer()
- 	 revocationDate,       % timer()
-	 crlEntryExtensions    % [#'Extension'{}]
-	 }).
- </code>
- 
- <section>
-   <marker id="CRLCertExt"></marker>
-   <title>CRL Extensions </title>
-   
-        <table>
-        <row>
-          <cell align="left" valign="middle">OID name</cell>
-          <cell align="left" valign="middle">Value type</cell>
-        </row>
-        <row>
-          <cell align="left" valign="middle">id-ce-authorityKeyIdentifier</cell>
-          <cell align="left" valign="middle">#'AuthorityKeyIdentifier{}</cell>
-        </row>
-        <row>
-          <cell align="left" valign="middle">id-ce-issuerAltName</cell>
-          <cell align="left" valign="middle">{rdnSequence, [#AttributeTypeAndValue'{}]}</cell>
-           </row>
-	    <row>
-          <cell align="left" valign="middle">id-ce-cRLNumber</cell>
-          <cell align="left" valign="middle">integer()</cell>
-           </row>
-	    <row>
-          <cell align="left" valign="middle">id-ce-deltaCRLIndicator</cell>
-          <cell align="left" valign="middle">integer()</cell>
-           </row>
-	    <row>
-          <cell align="left" valign="middle">id-ce-issuingDistributionPoint</cell>
-          <cell align="left" valign="middle">#'IssuingDistributionPoint'{}</cell>
-           </row>
-	   <row>
-          <cell align="left" valign="middle">id-ce-freshestCRL</cell>
-          <cell align="left" valign="middle">[#'Distributionpoint'{}]</cell>
-           </row>
-	   
-        <tcaption>CRL Extensions</tcaption>
-      </table>
-      
-      <code>
-#'IssuingDistributionPoint'{
-          distributionPoint,         % {fullName, [general_name()]} | {nameRelativeToCRLIssuer,
-	  [#AttributeTypeAndValue'{}]}
-	  onlyContainsUserCerts,     % boolean()
-	  onlyContainsCACerts,       % boolean()
-	  onlySomeReasons,           % [dist_reason()]
-	  indirectCRL,               % boolean()
-	  onlyContainsAttributeCerts % boolean()
-	  }).
-      </code> 
- </section>
- 
- <section>
-   <marker id="CRLEntryExt"></marker>
-   <title> CRL Entry Extensions </title>
-
-       <table>
-        <row>
-          <cell align="left" valign="middle">OID name</cell>
-          <cell align="left" valign="middle">Value type</cell>
-        </row>
-        <row>
-          <cell align="left" valign="middle">id-ce-cRLReason</cell>
-          <cell align="left" valign="middle">crl_reason()</cell>
-        </row>
-        <row>
-          <cell align="left" valign="middle">id-ce-holdInstructionCode</cell>
-          <cell align="left" valign="middle">oid()</cell>
-           </row>
-	    <row>
-          <cell align="left" valign="middle">id-ce-invalidityDate</cell>
-          <cell align="left" valign="middle">general_time()</cell>
-           </row>
-	    <row>
-          <cell align="left" valign="middle">id-ce-certificateIssuer</cell>
-          <cell align="left" valign="middle">general_name()</cell>
-           </row>
-	   <tcaption>CRL Entry Extensions</tcaption>
-       </table>
-       <p><c>
-	 crl_reason() = unspecified | keyCompromise | cACompromise |
-	 affiliationChanged | superseded | cessationOfOperation |
-	 certificateHold | removeFromCRL | privilegeWithdrawn |
-	 aACompromise        
-       </c></p>
- </section>
-
- <section>
-   <marker id="PKCS10"></marker>
-   <title>PKCS#10 Certification Request</title>
-   <code>
-#'CertificationRequest'{
-          certificationRequestInfo #'CertificationRequestInfo'{},
-	  signatureAlgorithm	   #'CertificationRequest_signatureAlgorithm'{}}.
-	  signature                {0, binary()} - ASN1 compact bitstring
-	  }
-
-#'CertificationRequestInfo'{
-	  version       atom(),
-	  subject       {rdnSequence, [#AttributeTypeAndValue'{}]} ,
-	  subjectPKInfo #'CertificationRequestInfo_subjectPKInfo'{},
-	  attributes    [#'AttributePKCS-10' {}]
-	  }
-
-#'CertificationRequestInfo_subjectPKInfo'{
-          algorithm		#'CertificationRequestInfo_subjectPKInfo_algorithm'{}
-	  subjectPublicKey 	 {0, binary()} - ASN1 compact bitstring
-	  }
-
-#'CertificationRequestInfo_subjectPKInfo_algorithm'{
-     algorithm = oid(),
-     parameters = der_encoded()
-}	  
-
-#'CertificationRequest_signatureAlgorithm'{
-     algorithm = oid(),
-     parameters = der_encoded()
-     }
-
-#'AttributePKCS-10'{
-    type = oid(),
-    values = [der_encoded()]
-}  
-   </code> 
- </section>
-
-</section>
-</chapter>
diff --git a/lib/public_key/doc/src/introduction.xml b/lib/public_key/doc/src/introduction.xml
index bf11a092d8..6542c8c509 100644
--- a/lib/public_key/doc/src/introduction.xml
+++ b/lib/public_key/doc/src/introduction.xml
@@ -5,7 +5,7 @@
   <header>
     <copyright>
       <year>2008</year>
-      <year>2013</year>
+      <year>2015</year>
       <holder>Ericsson AB, All Rights Reserved</holder>
     </copyright>
     <legalnotice>
@@ -36,27 +36,28 @@
 
   <section>
     <title>Purpose</title>
-    <p> public_key deals with public key related file formats, digital
-    signatures and <url href="http://www.ietf.org/rfc/rfc5280.txt">
+    <p>The Public Key application deals with public-key related file 
+    formats, digital signatures, and <url href="http://www.ietf.org/rfc/rfc5280.txt">
     X-509 certificates</url>. It is a library application that
-    provides encode/decode, sign/verify, encrypt/decrypt and similar
-    functionality, it does not read or write files it expects or returns
+    provides encode/decode, sign/verify, encrypt/decrypt, and similar
+    functionality. It does not read or write files, it expects or returns
     file contents or partial file contents as binaries.
     </p>
   </section>
 
   <section>
     <title>Prerequisites</title>
-    <p>It is assumed that the reader has a basic understanding
-    of the concepts of using public keys and digital certificates.</p>
+    <p>It is assumed that the reader is familiar with the Erlang programming 
+    language and has a basic understanding of the concepts of using public-keys 
+    and digital certificates.</p>
   </section>
 
   <section>
-    <title>Performance tips</title>
-    <p>The public_key decode and encode functions will try to use the NIFs
-    which are in the ASN1 compilers runtime modules if they can be found.
-    So for the best  performance you want to have the ASN1 application in the
-    path of your system. </p>
+    <title>Performance Tips</title>
+    <p>The Public Key decode- and encode-functions try to use the NIFs
+    in the ASN.1 compilers runtime modules, if they can be found.
+    Thus, to have the ASN1 application in the
+    path of your system gives the best performance.</p>
   </section>
 
 </chapter>
diff --git a/lib/public_key/doc/src/part.xml b/lib/public_key/doc/src/part.xml
index 73146c8e2a..465f311946 100644
--- a/lib/public_key/doc/src/part.xml
+++ b/lib/public_key/doc/src/part.xml
@@ -31,15 +31,14 @@
     <file>part.xml</file>
   </header>
   <description>
-    <p> This application provides an API to public key infrastructure
+    <p>This application provides an API to public-key infrastructure
     from <url href="http://www.ietf.org/rfc/rfc5280.txt">RFC
-    5280</url> (X.509 certificates) and public key formats defined by
+    5280</url> (X.509 certificates) and public-key formats defined by
     the <url href="http://en.wikipedia.org/wiki/PKCS">
-    PKCS-standard</url></p>
+    PKCS</url> standard.</p>
   </description>
   <xi:include href="introduction.xml"/>
   <xi:include href="public_key_records.xml"/>
-  <xi:include href="cert_records.xml"/>
   <xi:include href="using_public_key.xml"/>
 </part>
 
diff --git a/lib/public_key/doc/src/public_key.xml b/lib/public_key/doc/src/public_key.xml
index b86d0fe0ab..883c52393f 100644
--- a/lib/public_key/doc/src/public_key.xml
+++ b/lib/public_key/doc/src/public_key.xml
@@ -31,11 +31,11 @@
     <rev></rev>
   </header>
   <module>public_key</module>
-  <modulesummary> API module for public key infrastructure.</modulesummary>
+  <modulesummary>API module for public-key infrastructure.</modulesummary>
   <description>
-    <p>This module provides functions to handle public key infrastructure. It can
-    encode/decode different file formats (PEM, openssh), sign and verify digital signatures and validate
-    certificate paths and certificate revocation lists.
+    <p>This module provides functions to handle public-key infrastructure. It can
+    encode/decode different file formats (PEM, OpenSSH), sign and verify digital signatures, 
+    and validate certificate paths and certificate revocation lists.
     </p>
   </description>
 
@@ -43,94 +43,156 @@
     <title>public_key</title>
 
     <list type="bulleted">
-      <item>public_key requires the crypto and asn1 applications, the latter since R16 (hopefully the runtime dependency on asn1 will
+      <item> Public Key requires the Crypto and ASN1 applications, 
+      the latter as OTP R16 (hopefully the runtime dependency on ASN1 will
       be removed again in the future).</item>
 
       <item>Supports <url href="http://www.ietf.org/rfc/rfc5280.txt">RFC 5280 </url> -
-      Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile </item>
-      <item>Supports <url href="http://www.ietf.org/rfc/rfc3447.txt"> PKCS-1 </url> - RSA Cryptography Standard </item>
-      <item>Supports <url href="http://csrc.nist.gov/publications/fips/fips186-3/fips_186-3.pdf"> DSS</url>- Digital Signature Standard (DSA - Digital Signature Algorithm)</item>
-      <item>Supports <url href="http://www.emc.com/emc-plus/rsa-labs/standards-initiatives/pkcs-3-diffie-hellman-key-agreement-standar.htm"> PKCS-3 </url> - Diffie-Hellman Key Agreement Standard </item>
-      <item>Supports <url href="http://www.ietf.org/rfc/rfc2898.txt"> PKCS-5</url> - Password-Based Cryptography Standard </item>
-      <item>Supports <url href="http://www.ietf.org/rfc/rfc5208.txt"> PKCS-8</url> - Private-Key Information Syntax Standard</item>
-      <item>Supports <url href="http://www.ietf.org/rfc/rfc5967.txt"> PKCS-10</url> - Certification Request Syntax Standard</item>
+      Internet X.509 Public-Key Infrastructure Certificate and Certificate Revocation List 
+      (CRL) Profile </item>
+      <item>Supports <url href="http://www.ietf.org/rfc/rfc3447.txt"> PKCS-1 </url> - 
+      RSA Cryptography Standard </item>
+      <item>Supports <url href="http://csrc.nist.gov/publications/fips/fips186-3/fips_186-3.pdf"> DSS</url> - 
+      Digital Signature Standard (DSA - Digital Signature Algorithm)</item>
+      <item>Supports 
+      <url href="http://www.emc.com/emc-plus/rsa-labs/standards-initiatives/pkcs-3-diffie-hellman-key-agreement-standar.htm"> PKCS-3 </url> - 
+      Diffie-Hellman Key Agreement Standard </item>
+      <item>Supports <url href="http://www.ietf.org/rfc/rfc2898.txt"> PKCS-5</url> - 
+      Password-Based Cryptography Standard </item>
+      <item>Supports <url href="http://www.ietf.org/rfc/rfc5208.txt"> PKCS-8</url> - 
+      Private-Key Information Syntax Standard</item>
+      <item>Supports <url href="http://www.ietf.org/rfc/rfc5967.txt"> PKCS-10</url> - 
+      Certification Request Syntax Standard</item>
     </list>
   </section>
 
   <section>
-    <title>COMMON DATA TYPES </title> 
+    <title>DATA TYPES</title> 
     
-    <note><p>All records used in this manual 
+    <note><p>All records used in this Reference Manual 
     <!--     except #policy_tree_node{}  -->
     are generated from ASN.1 specifications
     and are documented in the User's Guide. See <seealso 
-    marker="public_key_records">Public key records</seealso> and <seealso 
-    marker="cert_records">X.509 Certificate records</seealso>. 
+    marker="public_key_records">Public-key Records</seealso>.
     </p></note>
     
     <p>Use the following include directive to get access to the 
-    records and constant macros described here and in the User's Guide.</p>
+    records and constant macros described here and in the User's Guide:</p>
     
     <code> -include_lib("public_key/include/public_key.hrl").</code>
 
-    <p><em>Data Types </em></p>
-    
-    <p><code>oid() - Object Identifier, a tuple of integers as generated by the ASN1 compiler.</code></p>
-
-    <p><code>boolean() = true | false</code></p>
+    <p>The following data types are used in the functions for <c>public_key</c>:</p>
 
-    <p><code>string() = [bytes()]</code></p>
-
-    <p><code>der_encoded() = binary()</code></p>
-   
-    <p><code>pki_asn1_type() = 'Certificate' | 'RSAPrivateKey'| 'RSAPublicKey' |
-    'DSAPrivateKey' | 'DSAPublicKey' | 'DHParameter' |
-    'SubjectPublicKeyInfo' | 'PrivateKeyInfo' |
-    'CertificationRequest' | 'ECPrivateKey' | 'EcpkParameters'</code></p>
-    
-    <p><code>pem_entry () = {pki_asn1_type(), binary(), %% DER or encrypted DER
-    not_encrypted | cipher_info()}</code></p>
+    <taglist>
+      <tag><c>oid()</c></tag>
+      <item><p>Object identifier, a tuple of integers as generated by the <c>ASN.1</c> compiler.</p></item>
 
-    <p><code>cipher_info()  =  {"RC2-CBC | "DES-CBC" | "DES-EDE3-CBC",
-    crypto:rand_bytes(8) | {#'PBEParameter{}, digest_type()} |#'PBES2-params'{}}</code></p>
-	  
-    <p><code>public_key()  = rsa_public_key() | dsa_public_key() | ec_public_key()</code></p>
-    <p><code>private_key() = rsa_private_key() | dsa_private_key() | ec_private_key()</code></p>
-    <p><code>rsa_public_key()  = #'RSAPublicKey'{}</code></p>
+      <tag><c>boolean() =</c></tag>
+      <item><p><c>true | false</c></p></item>
+      
+      <tag><c>string() =</c></tag>
+      <item><p><c>[bytes()]</c></p></item>
+
+      <tag><c>der_encoded() =</c></tag>
+      <item><p><c>binary()</c></p></item>
+
+      <tag><c>pki_asn1_type() =</c></tag>
+      <item>
+	<p><c>'Certificate'</c></p>
+	<p><c>| 'RSAPrivateKey'</c></p>
+	<p><c>| 'RSAPublicKey'</c></p>
+	<p><c>| 'DSAPrivateKey'</c></p>
+	<p><c>| 'DSAPublicKey'</c></p>
+	<p><c>| 'DHParameter'</c></p>
+	<p><c>| 'SubjectPublicKeyInfo'</c></p>
+	<p><c>| 'PrivateKeyInfo'</c></p>
+	<p><c>| 'CertificationRequest'</c></p>
+	<p><c>| 'ECPrivateKey'</c></p>
+      <p><c>| 'EcpkParameters'</c></p>
+      </item>
+
+      <tag><c>pem_entry () =</c></tag>
+      <item><p><c>{pki_asn1_type(), binary(), %% DER or encrypted DER not_encrypted</c></p>
+      <p><c>| cipher_info()}</c></p></item>
+      
+      <tag><c>cipher_info() = </c></tag>
+      <item><p><c>{"RC2-CBC" | "DES-CBC" | "DES-EDE3-CBC", crypto:rand_bytes(8)</c></p>
+      <p><c>| {#'PBEParameter{}, digest_type()} | #'PBES2-params'{}}</c></p>
+      </item>
+      
+      <tag><c>public_key() =</c></tag>
+      <item><p><c>rsa_public_key() | dsa_public_key() | ec_public_key()</c></p></item>
+      
+      <tag><c>private_key() =</c></tag>
+      <item><p><c>rsa_private_key() | dsa_private_key() | ec_private_key()</c></p></item>
 
-    <p><code>rsa_private_key() = #'RSAPrivateKey'{}</code></p>
+      <tag><c>rsa_public_key() =</c></tag>
+      <item><p><c>#'RSAPublicKey'{}</c></p></item>
 
-    <p><code>dsa_public_key()  = {integer(),  #'Dss-Parms'{}}</code></p>
+      <tag><c>rsa_private_key() =</c></tag>
+      <item><p><c>#'RSAPrivateKey'{}</c></p></item>
 
-    <p><code>dsa_private_key() = #'DSAPrivateKey'{}</code></p>
+      <tag><c>dsa_public_key() =</c></tag>
+      <item><p><c>{integer(),  #'Dss-Parms'{}}</c></p></item>
 
-    <p><code>ec_public_key()   = {#'ECPoint'{}, #'EcpkParameters'{} |
-    {namedCurve, oid()}}</code></p>
-    
-    <p><code>ec_private_key()  = #'ECPrivateKey'{}</code></p>
+      <tag><c>dsa_private_key() =</c></tag>
+      <item><p><c>#'DSAPrivateKey'{}</c></p></item>
 
-    <p><code>public_crypt_options() = [{rsa_pad, rsa_padding()}].</code></p>
+      <tag><c>ec_public_key()</c></tag>
+      <item><p>= <c>{#'ECPoint'{}, #'EcpkParameters'{} | {namedCurve, oid()}}</c></p></item>
 
-    <p><code>rsa_padding() =  'rsa_pkcs1_padding' | 'rsa_pkcs1_oaep_padding' |
-    'rsa_no_padding'</code></p>
+      <tag><c>ec_private_key() =</c></tag>
+      <item><p><c>#'ECPrivateKey'{}</c></p></item>
 
-    <p><code>digest_type() - Union of below digest types</code></p>
-    
-    <p><code>rsa_digest_type()   = 'md5' | 'sha' | 'sha224' | 'sha256' | 'sha384' |
-    'sha512'</code></p>
+      <tag><c>public_crypt_options() =</c></tag>
+      <item><p><c>[{rsa_pad, rsa_padding()}]</c></p></item>
 
-    <p><code>dss_digest_type()   = 'sha'</code></p>
+      <tag><c>rsa_padding() =</c></tag>
+      <item>
+	<p><c>'rsa_pkcs1_padding'</c></p>
+	<p><c>| 'rsa_pkcs1_oaep_padding'</c></p>
+	<p><c>| 'rsa_no_padding'</c></p>
+      </item>
 
-    <p><code>ecdsa_digest_type() = 'sha'| 'sha224' | 'sha256' | 'sha384' | 'sha512'</code></p>
+      <tag><c>digest_type() = </c></tag>
+      <item><p>Union of <c>rsa_digest_type()</c>, <c>dss_digest_type()</c>, 
+      and <c>ecdsa_digest_type()</c>.</p></item>
 
-    <p><code>crl_reason()  = unspecified | keyCompromise | cACompromise |
-    affiliationChanged | superseded | cessationOfOperation |
-    certificateHold | privilegeWithdrawn | aACompromise</code></p>
+      <tag><c>rsa_digest_type() = </c></tag>
+      <item><p><c>'md5' | 'sha' | 'sha224' | 'sha256' | 'sha384' | 'sha512'</c></p></item>
 
-    <p><code>issuer_name() = {rdnSequence,[#'AttributeTypeAndValue'{}]} </code> </p>
+      <tag><c>dss_digest_type() = </c></tag>
+      <item><p><c>'sha'</c></p></item>
 
-    <p><code>ssh_file()  = openssh_public_key | rfc4716_public_key | known_hosts |
-    auth_keys</code></p>
+      <tag><c>ecdsa_digest_type() = </c></tag>
+      <item><p><c>'sha'| 'sha224' | 'sha256' | 'sha384' | 'sha512'</c></p></item>
+      
+      <tag><c>crl_reason() = </c></tag>
+      <item>
+	<p><c>unspecified</c></p>
+	<p><c>| keyCompromise</c></p>
+	<p><c>| cACompromise</c></p>
+	<p><c>| affiliationChanged</c></p>
+	<p><c>| superseded</c></p>
+	<p><c>| cessationOfOperation</c></p>
+	<p><c>| certificateHold</c></p>
+	<p><c>| privilegeWithdrawn</c></p>
+	<p><c>| aACompromise</c></p>
+      </item>
+
+      <tag><c>issuer_name() =</c></tag>
+      <item><p><c>{rdnSequence,[#'AttributeTypeAndValue'{}]}</c></p>  
+      </item>
+      
+      <tag><c>ssh_file() =</c></tag>
+      <item>
+	<p><c>openssh_public_key</c></p>
+	<p><c>| rfc4716_public_key</c></p>
+	<p><c>| known_hosts</c></p>
+	<p><c>| auth_keys</c></p>
+      </item>
+    </taglist>
+    
     
 <!--     <p><code>policy_tree() = [Root, Children]</code></p> -->
     
@@ -138,12 +200,12 @@
 
 <!--     <p><code>Children = [] | policy_tree()</code></p> -->
 	
-<!--     <p> The policy_tree_node record has the following fields:</p> -->
+<!--     <p>The <c>policy_tree_node</c> record has the following fields:</p> -->
     
 <!--     <taglist> -->
       
 <!--       <tag>valid_policy</tag> -->
-<!--       <item> Is a single policy OID representing a -->
+<!--       <item>A single policy OID representing a -->
 <!--          valid policy for the path of length x.</item> -->
       
 <!--       <tag>qualifier_set</tag> -->
@@ -151,13 +213,13 @@
 <!--          with the valid policy in certificate x.</item> -->
       
 <!--       <tag>critically_indicator</tag> -->
-<!--       <item>The critically_indicator indicates whether the -->
+<!--       <item>Indicates whether the -->
 <!--          certificate policy extension in certificate x was marked as -->
-<!--          critical. </item> -->
+<!--          critical.</item> -->
       
 <!--       <tag>expected_policy_set</tag> -->
-<!--       <item>The expected_policy_set contains one or more policy OIDs -->
-<!--          that would satisfy this policy in the certificate x+1. </item>         -->
+<!--       <item>Contains one or more policy OIDs -->
+<!--          that would satisfy this policy in the certificate x+1.</item>         -->
 <!--     </taglist> -->
   </section> 
 
@@ -166,27 +228,27 @@
   <func>
     <name>compute_key(OthersKey, MyKey)-></name>
     <name>compute_key(OthersKey, MyKey, Params)-></name>
-    <fsummary> Compute shared secret</fsummary>
+    <fsummary>Computes shared secret.</fsummary>
     <type>
       <v>OthersKey = #'ECPoint'{} | binary(), MyKey = #'ECPrivateKey'{} | binary()</v>
       <v>Params =  #'DHParameter'{}</v>
     </type>
   <desc>
-    <p> Compute shared secret </p>
+    <p>Computes shared secret.</p>
   </desc>
   </func>
 
   <func>
     <name>decrypt_private(CipherText, Key) -> binary()</name>
     <name>decrypt_private(CipherText, Key, Options) -> binary()</name>
-    <fsummary>Public key decryption.</fsummary>
+    <fsummary>Public-key decryption.</fsummary>
     <type>
       <v>CipherText = binary()</v>
       <v>Key = rsa_private_key()</v>
       <v>Options = public_crypt_options()</v>
   </type> 
   <desc> 
-    <p>Public key decryption using the private key. See also <seealso
+    <p>Public-key decryption using the private key. See also <seealso
 	marker="crypto:crypto#private_decrypt/4">crypto:private_decrypt/4</seealso></p> 
   </desc> 
   </func>
@@ -194,156 +256,156 @@
   <func>
     <name>decrypt_public(CipherText, Key) - > binary()</name>
     <name>decrypt_public(CipherText, Key, Options) - > binary()</name>
-    <fsummary></fsummary>
+    <fsummary>Public-key decryption.</fsummary>
     <type>
       <v>CipherText = binary()</v>
       <v>Key = rsa_public_key()</v>
       <v>Options = public_crypt_options()</v>
   </type> 
   <desc> 
-    <p> Public key decryption using the public key. See also <seealso
+    <p>Public-key decryption using the public key. See also <seealso
 	marker="crypto:crypto#public_decrypt/4">crypto:public_decrypt/4</seealso></p> 
   </desc> 
   </func> 
 
   <func>
     <name>der_decode(Asn1type, Der) -> term()</name>
-    <fsummary> Decodes a public key ASN.1 DER encoded entity.</fsummary>
+    <fsummary>Decodes a public-key ASN.1 DER encoded entity.</fsummary>
     <type>
       <v>Asn1Type = atom()</v>
-      <d> ASN.1 type present in the public_key applications
-      asn1 specifications.</d>
+      <d>ASN.1 type present in the Public Key applications
+      ASN.1 specifications.</d>
       <v>Der = der_encoded()</v>
     </type> 
     <desc> 
-      <p> Decodes a public key ASN.1 DER encoded entity.</p>
+      <p>Decodes a public-key ASN.1 DER encoded entity.</p>
     </desc> 
   </func>
     
   <func>
     <name>der_encode(Asn1Type, Entity) -> der_encoded()</name>
-    <fsummary> Encodes a public key entity with asn1 DER encoding.</fsummary>
+    <fsummary>Encodes a public-key entity with ASN.1 DER encoding.</fsummary>
     <type>
       <v>Asn1Type = atom()</v>
-      <d> Asn1 type present in the public_key applications
+      <d>ASN.1 type present in the Public Key applications
 	 ASN.1 specifications.</d>
       <v>Entity = term()</v>
-      <d>The erlang representation of <c>Asn1Type</c></d>
+      <d>Erlang representation of <c>Asn1Type</c></d>
   </type> 
   <desc> 
-    <p> Encodes a public key entity with ASN.1 DER encoding.</p>
+    <p>Encodes a public-key entity with ASN.1 DER encoding.</p>
   </desc> 
   </func>
 
+    <func>
+    <name>encrypt_private(PlainText, Key) -> binary()</name>
+    <fsummary>Public-key encryption using the private key.</fsummary>
+    <type>
+      <v>PlainText = binary()</v>
+      <v>Key = rsa_private_key()</v> 
+  </type> 
+  <desc> 
+    <p>Public-key encryption using the private key.
+     See also <seealso
+	marker="crypto:crypto#private_encrypt/4">crypto:private_encrypt/4</seealso>.</p> 
+  </desc> 
+  </func>   
+
+  <func>
+    <name>encrypt_public(PlainText, Key) -> binary()</name>
+    <fsummary>Public-key encryption using the public key.</fsummary>
+    <type>
+      <v>PlainText = binary()</v>
+      <v>Key = rsa_public_key()</v> 
+  </type> 
+  <desc> 
+    <p>Public-key encryption using the public key. See also <seealso
+	marker="crypto:crypto#public_encrypt/4">crypto:public_encrypt/4</seealso>.</p> 
+  </desc> 
+  </func>   
+  
   <func>
     <name>generate_key(Params) -> {Public::binary(), Private::binary()}  | #'ECPrivateKey'{} </name>
-    <fsummary>Generates a new keypair</fsummary>
+    <fsummary>Generates a new keypair.</fsummary>
     <type>
-      <v> Params = #'DHParameter'{} |  {namedCurve, oid()} |  #'ECParameters'{} </v>
+      <v>Params = #'DHParameter'{} |  {namedCurve, oid()} |  #'ECParameters'{}</v>
     </type>
   <desc>
-    <p>Generates a new keypair</p>
+    <p>Generates a new keypair.</p>
   </desc>
   </func>
 
   <func>
     <name>pem_decode(PemBin) -> [pem_entry()]</name>
-    <fsummary>Decode PEM binary data and return
-    entries as ASN.1 DER encoded entities. </fsummary>
+    <fsummary>Decodes PEM binary data and returns
+    entries as ASN.1 DER encoded entities.</fsummary>
     <type>
       <v>PemBin = binary()</v>
       <d>Example {ok, PemBin} = file:read_file("cert.pem").</d>
     </type> 
   <desc> 
-    <p>Decode PEM binary data and return
+    <p>Decodes PEM binary data and returns
     entries as ASN.1 DER encoded entities.</p>
   </desc> 
   </func> 
     
    <func>
     <name>pem_encode(PemEntries) -> binary()</name>
-    <fsummary>Creates a PEM binary</fsummary>
+    <fsummary>Creates a PEM binary.</fsummary>
     <type>
       <v> PemEntries = [pem_entry()] </v> 
   </type> 
   <desc> 
-    <p>Creates a PEM binary</p> 
+    <p>Creates a PEM binary.</p> 
   </desc> 
   </func>
 
    <func>
     <name>pem_entry_decode(PemEntry) -> term()</name>
     <name>pem_entry_decode(PemEntry, Password) -> term()</name>
-    <fsummary>Decodes a pem entry.</fsummary>
+    <fsummary>Decodes a PEM entry.</fsummary>
     <type>
-      <v> PemEntry = pem_entry() </v> 
-      <v> Password = string() </v> 
+      <v>PemEntry = pem_entry()</v> 
+      <v>Password = string()</v> 
   </type> 
   <desc> 
-    <p>Decodes a PEM entry. pem_decode/1 returns a list of PEM
-    entries. Note that if the PEM entry is of type
-    'SubjectPublickeyInfo' it will be further decoded to an
-    rsa_public_key() or dsa_public_key().</p>
+    <p>Decodes a PEM entry. <c>pem_decode/1</c> returns a list of PEM
+    entries. Notice that if the PEM entry is of type
+    'SubjectPublickeyInfo', it is further decoded to an
+    <c>rsa_public_key()</c> or <c>dsa_public_key()</c>.</p>
   </desc> 
   </func>
 
    <func>
     <name>pem_entry_encode(Asn1Type, Entity) -> pem_entry()</name>
     <name>pem_entry_encode(Asn1Type, Entity, {CipherInfo, Password}) -> pem_entry()</name>
-    <fsummary> Creates a PEM entry that can be fed to pem_encode/1.</fsummary>
+    <fsummary>Creates a PEM entry that can be fed to <c>pem_encode/1</c>.</fsummary>
     <type>
       <v>Asn1Type = pki_asn1_type()</v>
       <v>Entity = term()</v>
-      <d>The Erlang representation of
-      <c>Asn1Type</c>.  If <c>Asn1Type</c> is 'SubjectPublicKeyInfo'
-      then <c>Entity</c> must be either an rsa_public_key() or a
-      dsa_public_key() and this function will create the appropriate
+      <d>Erlang representation of
+      <c>Asn1Type</c>.  If <c>Asn1Type</c> is 'SubjectPublicKeyInfo',
+      <c>Entity</c> must be either an <c>rsa_public_key()</c> or a
+      <c>dsa_public_key()</c> and this function creates the appropriate
       'SubjectPublicKeyInfo' entry.
       </d>
       <v>CipherInfo = cipher_info()</v>
       <v>Password = string()</v> 
   </type> 
   <desc> 
-    <p> Creates a PEM entry that can be feed to pem_encode/1.</p>
+    <p>Creates a PEM entry that can be feed to <c>pem_encode/1</c>.</p>
   </desc> 
   </func>
-
-  <func>
-    <name>encrypt_private(PlainText, Key) -> binary()</name>
-    <fsummary> Public key encryption using the private key.</fsummary>
-    <type>
-      <v>PlainText = binary()</v>
-      <v>Key = rsa_private_key()</v> 
-  </type> 
-  <desc> 
-    <p> Public key encryption using the private key.
-     See also <seealso
-	marker="crypto:crypto#private_encrypt/4">crypto:private_encrypt/4</seealso></p> 
-  </desc> 
-  </func>   
-
-  <func>
-    <name>encrypt_public(PlainText, Key) -> binary()</name>
-    <fsummary> Public key encryption using the public key.</fsummary>
-    <type>
-      <v>PlainText = binary()</v>
-      <v>Key = rsa_public_key()</v> 
-  </type> 
-  <desc> 
-    <p> Public key encryption using the public key.  See also <seealso
-	marker="crypto:crypto#public_encrypt/4">crypto:public_encrypt/4</seealso></p> 
-  </desc> 
-  </func>   
   
   <func>
     <name>pkix_decode_cert(Cert, otp|plain) ->  #'Certificate'{} | #'OTPCertificate'{}</name>
-    <fsummary> Decodes an ASN.1 DER encoded PKIX x509 certificate.</fsummary>
+    <fsummary>Decodes an ASN.1 DER-encoded PKIX x509 certificate.</fsummary>
     <type>
       <v>Cert = der_encoded()</v> 
   </type> 
   <desc> 
-    <p>Decodes an ASN.1 DER encoded PKIX certificate.  The otp option
-    will use the customized ASN.1 specification OTP-PKIX.asn1 for
+    <p>Decodes an ASN.1 DER-encoded PKIX certificate. Option <c>otp</c>
+    uses the customized ASN.1 specification OTP-PKIX.asn1 for
     decoding and also recursively decode most of the standard
     parts.</p>
   </desc> 
@@ -355,54 +417,54 @@
     certificate.</fsummary>
     <type>
       <v>Asn1Type = atom()</v>
-      <d>The ASN.1 type can be 'Certificate', 'OTPCertificate' or a subtype of either .</d>
+      <d>The ASN.1 type can be 'Certificate', 'OTPCertificate' or a subtype of either.</d>
       <v>Entity = #'Certificate'{} | #'OTPCertificate'{} | a valid subtype</v>
   </type> 
   <desc> 
     <p>DER encodes a PKIX x509 certificate or part of such a
     certificate. This function must be used for encoding certificates or parts of certificates
-    that are decoded/created in the otp format, whereas for the plain format this
-    function will directly call der_encode/2. </p> 
+    that are decoded/created in the <c>otp</c> format, whereas for the plain format this
+    function directly calls <c>der_encode/2</c>.</p> 
   </desc> 
   </func>
 
  <func>
     <name>pkix_is_issuer(Cert, IssuerCert) -> boolean()</name>
-    <fsummary> Checks if <c>IssuerCert</c> issued <c>Cert</c> </fsummary>
+    <fsummary>Checks if <c>IssuerCert</c> issued <c>Cert</c>.</fsummary>
     <type>
       <v>Cert = der_encoded() | #'OTPCertificate'{}</v>
       <v>IssuerCert = der_encoded() | #'OTPCertificate'{}</v>
   </type> 
   <desc> 
-    <p> Checks if <c>IssuerCert</c> issued <c>Cert</c> </p> 
+    <p>Checks if <c>IssuerCert</c> issued <c>Cert</c>.</p> 
   </desc> 
   </func>
   
   <func>
     <name>pkix_is_fixed_dh_cert(Cert) -> boolean()</name>
-    <fsummary> Checks if a Certificate is a fixed Diffie-Hellman Cert.</fsummary>
+    <fsummary>Checks if a certificate is a fixed Diffie-Hellman certificate.</fsummary>
     <type>
         <v>Cert = der_encoded() | #'OTPCertificate'{}</v>
   </type> 
   <desc> 
-    <p> Checks if a Certificate is a fixed Diffie-Hellman Cert.</p> 
+    <p>Checks if a certificate is a fixed Diffie-Hellman certificate.</p> 
   </desc> 
   </func>  
   
   <func>
     <name>pkix_is_self_signed(Cert) -> boolean()</name>
-    <fsummary> Checks if a Certificate is self signed.</fsummary>
+    <fsummary>Checks if a certificate is self-signed.</fsummary>
     <type>
        <v>Cert = der_encoded() | #'OTPCertificate'{}</v>
   </type> 
   <desc> 
-    <p> Checks if a Certificate is self signed.</p> 
+    <p>Checks if a certificate is self-signed.</p> 
   </desc> 
   </func>
 
   <func>
     <name>pkix_issuer_id(Cert, IssuedBy) -> {ok, IssuerID} | {error, Reason}</name>
-    <fsummary> Returns the issuer id.</fsummary>
+    <fsummary>Returns the issuer id.</fsummary>
     <type>
         <v>Cert = der_encoded() | #'OTPCertificate'{}</v>
 	<v>IssuedBy = self | other</v>
@@ -411,43 +473,43 @@
 	<v>Reason = term()</v>
     </type> 
     <desc> 
-      <p> Returns the issuer id.</p> 
+    <p>Returns the issuer id.</p> 
     </desc> 
   </func>
   
  
   <func>
     <name>pkix_normalize_name(Issuer) -> Normalized</name>
-    <fsummary>Normalizes a issuer name so that it can be easily
-    compared to another issuer name. </fsummary>
+    <fsummary>Normalizes an issuer name so that it can be easily
+    compared to another issuer name.</fsummary>
     <type>
       <v>Issuer = issuer_name()</v>
       <v>Normalized = issuer_name()</v>
   </type> 
   <desc> 
-    <p>Normalizes a issuer name so that it can be easily
+    <p>Normalizes an issuer name so that it can be easily
     compared to another issuer name.</p> 
   </desc> 
   </func>
    
   <func>
     <name>pkix_path_validation(TrustedCert, CertChain, Options) -> {ok, {PublicKeyInfo, PolicyTree}} | {error, {bad_cert, Reason}} </name>
-    <fsummary> Performs a basic path validation according to RFC 5280.</fsummary>
+    <fsummary>Performs a basic path validation according to RFC 5280.</fsummary>
      <type>
-       <v> TrustedCert =  #'OTPCertificate'{} | der_encoded() | atom()  </v>
-       <d>Normally a trusted certificate but it can also be a path validation
+       <v>TrustedCert =  #'OTPCertificate'{} | der_encode() | atom()</v>
+       <d>Normally a trusted certificate, but it can also be a path-validation
        error that can be discovered while
-       constructing the input to this function and that should be run through the <c>verify_fun</c>.
-       For example <c>unknown_ca </c> or <c>selfsigned_peer </c>
+       constructing the input to this function and that is to be run through the <c>verify_fun</c>.
+       Examples are <c>unknown_ca</c> and <c>selfsigned_peer.</c>
        </d>
-       <v> CertChain = [der_encoded()]</v>
-       <d>A list of DER encoded certificates in trust order ending with the peer certificate.</d>
-       <v> Options = proplists:proplist()</v>
+       <v>CertChain = [der_encode()]</v>
+       <d>A list of DER-encoded certificates in trust order ending with the peer certificate.</d>
+       <v>Options = proplists:proplist()</v>
        <v>PublicKeyInfo = {?'rsaEncryption' | ?'id-dsa',
        rsa_public_key() | integer(), 'NULL' | 'Dss-Parms'{}}</v>
-       <v> PolicyTree = term() </v>
-       <d>At the moment this will always be an empty list as Policies are not currently supported</d>
-       <v> Reason = cert_expired | invalid_issuer | invalid_signature | name_not_permitted |
+       <v>PolicyTree = term()</v>
+       <d>At the moment this is always an empty list as policies are not currently supported.</d>
+       <v>Reason = cert_expired | invalid_issuer | invalid_signature | name_not_permitted |
        missing_basic_constraint | invalid_key_usage | {revoked, crl_reason()} | atom()
        </v>
      </type>
@@ -455,17 +517,17 @@
        <p>
 	 Performs a basic path validation according to
 	 <url href="http://www.ietf.org/rfc/rfc5280.txt">RFC 5280.</url>
-	 However CRL validation is done separately by <seealso
-	 marker="#pkix_crls_validate-3">pkix_crls_validate/3 </seealso> and should be called
-	 from the supplied <c>verify_fun</c>
+	 However, CRL validation is done separately by <seealso
+	 marker="#pkix_crls_validate-3">pkix_crls_validate/3 </seealso> and is to be called
+	 from the supplied <c>verify_fun</c>.
        </p>
 
-       <taglist>
-	 <p> Available options are: </p>
+       <p>Available options:</p>
 
+       <taglist>
 	<tag>{verify_fun, fun()}</tag>
 	<item>
-	  <p>The fun should be defined as:</p>
+	  <p>The fun must be defined as:</p>
 
 	  <code>
 fun(OtpCert :: #'OTPCertificate'{},
@@ -478,53 +540,53 @@ fun(OtpCert :: #'OTPCertificate'{},
 	{unknown, UserState :: term()}.
 	  </code>
 
-	<p>If the verify callback fun returns {fail, Reason}, the
+	<p>If the verify callback fun returns <c>{fail, Reason}</c>, the
 	verification process is immediately stopped. If the verify
-	callback fun returns {valid, UserState}, the verification
-	process is continued, this can be used to accept specific path
-	validation errors such as <c>selfsigned_peer</c> as well as
-	verifying application specific extensions.  If called with an
-	extension unknown to the user application the return value
-	{unknown, UserState} should be used.</p>
+	callback fun returns <c>{valid, UserState}</c>, the verification
+	process is continued. This can be used to accept specific path
+	validation errors, such as <c>selfsigned_peer</c>, as well as
+	verifying application-specific extensions. If called with an
+	extension unknown to the user application, the return value
+	<c>{unknown, UserState}</c> is to be used.</p>
 
 	</item>
 	<tag>{max_path_length, integer()}</tag>
 	<item>
 	  The <c>max_path_length</c> is the maximum number of non-self-issued
-	  intermediate certificates that may follow the peer certificate
-	  in a valid certification path.  So if <c>max_path_length</c> is 0 the PEER must
-	  be signed by the trusted ROOT-CA directly, if 1 the path can
-	  be PEER, CA, ROOT-CA, if it is 2 PEER, CA, CA, ROOT-CA and so
-	  on.
+	  intermediate certificates that can follow the peer certificate
+	  in a valid certification path. So, if <c>max_path_length</c> is 0, the PEER must
+	  be signed by the trusted ROOT-CA directly, if it is 1, the path can
+	  be PEER, CA, ROOT-CA, if it is 2, the path can
+	  be PEER, CA, CA, ROOT-CA, and so on.
 	</item>
       </taglist>
 
-      <p> Possible reasons for a bad certificate are: </p>
+      <p>Possible reasons for a bad certificate: </p>
       <taglist>
 	<tag>cert_expired</tag>
-	<item>The certificate is no longer valid as its expiration date has passed.</item>
+	<item><p>Certificate is no longer valid as its expiration date has passed.</p></item>
 
 	<tag>invalid_issuer</tag>
-	<item>The certificate issuer name does not match the name of the issuer certificate in the chain.</item>
+	<item><p>Certificate issuer name does not match the name of the issuer certificate in the chain.</p></item>
 
 	<tag>invalid_signature</tag>
-	<item>The certificate was not signed by its issuer certificate in the chain.</item>
+	<item><p>Certificate was not signed by its issuer certificate in the chain.</p></item>
 
 	<tag>name_not_permitted</tag>
-	<item>Invalid Subject Alternative Name extension.</item>
+	<item><p>Invalid Subject Alternative Name extension.</p></item>
 
 	<tag>missing_basic_constraint</tag>
-	<item>Certificate, required to have the basic constraints extension, does not have
-	a basic constraints extension.</item>
+	<item><p>Certificate, required to have the basic constraints extension, does not have
+	a basic constraints extension.</p></item>
 
 	<tag>invalid_key_usage</tag>
-	<item>Certificate key is used in an invalid way according to the key usage extension.</item>
+	<item><p>Certificate key is used in an invalid way according to the key-usage extension.</p></item>
 
 	<tag>{revoked, crl_reason()}</tag>
-	<item>Certificate has been revoked.</item>
+	<item><p>Certificate has been revoked.</p></item>
 
 	<tag>atom()</tag>
-	<item>Application specific error reason that should be checked by the verify_fun</item>
+	<item><p>Application-specific error reason that is to be checked by the <c>verify_fun</c>.</p></item>
       </taglist>
 
     </desc>
@@ -543,44 +605,47 @@ fun(OtpCert :: #'OTPCertificate'{},
    
    <func>
      <name>pkix_crls_validate(OTPCertificate, DPAndCRLs, Options) -> CRLStatus()</name>
-     <fsummary> Performs CRL validation.</fsummary>
+     <fsummary>Performs CRL validation.</fsummary>
      <type>
-       <v> OTPCertificate =  #'OTPCertificate'{}</v>
-       <v> DPAndCRLs  = [{DP::#'DistributionPoint'{}, {DerCRL::der_encoded(), CRL::#'CertificateList'{}}}] </v>
-       <v> Options = proplists:proplist()</v>
-       <v> CRLStatus() =  valid | {bad_cert, revocation_status_undetermined} |
+       <v>OTPCertificate =  #'OTPCertificate'{}</v>
+       <v>DPAndCRLs  = [{DP::#'DistributionPoint'{}, {DerCRL::der_encoded(), CRL::#'CertificateList'{}}}] </v>
+       <v>Options = proplists:proplist()</v>
+       <v>CRLStatus() =  valid | {bad_cert, revocation_status_undetermined} |
        {bad_cert, {revoked, crl_reason()}}</v>
      </type>
      <desc>
-      <p> Performs CRL validation. It is intended to be called from
+      <p>Performs CRL validation. It is intended to be called from
       the verify fun of  <seealso marker="#pkix_path_validation-3"> pkix_path_validation/3
-       </seealso></p>
+       </seealso>.</p>
+
+       <p>Available options:</p>
+
       <taglist>
-	<p> Available options are: </p>
+	
 	<tag>{update_crl, fun()}</tag>
 	<item>
-	  <p>The fun has the following type spec:</p>
+	  <p>The fun has the following type specification:</p>
 
 	  <code> fun(#'DistributionPoint'{}, #'CertificateList'{}) ->
         #'CertificateList'{}</code>
 
-	  <p>The fun should use the information in the distribution point to acesses
-	  the lates possible version of the CRL. If this fun is not specified
-	  public_key will use the default implementation:
+	  <p>The fun uses the information in the distribution point to access
+	  the latest possible version of the CRL. If this fun is not specified,
+	  Public Key uses the default implementation:
 	  </p>
 	  <code> fun(_DP, CRL) -> CRL end</code>
 	</item>
 
 	<tag>{issuer_fun, fun()}</tag>
 	<item>
-	  <p>The fun has the following type spec:</p>
+	  <p>The fun has the following type specification:</p>
 
 	  <code>
 fun(#'DistributionPoint'{}, #'CertificateList'{},
     {rdnSequence,[#'AttributeTypeAndValue'{}]}, term()) ->
 	{ok, #'OTPCertificate'{}, [der_encoded]}</code>
 
-	  <p>The fun should return the root certificate and certificate chain
+	  <p>The fun returns the root certificate and certificate chain
 	  that has signed the CRL. 
 	  </p>
 	  <code> fun(DP, CRL, Issuer, UserState) -> {ok, RootCert, CertChain}</code>
@@ -635,83 +700,83 @@ fun(#'DistributionPoint'{}, #'CertificateList'{},
       <v>Key = rsa_public_key() | dsa_public_key()</v> 
     </type> 
     <desc> 
-      <p>Signs a 'OTPTBSCertificate'. Returns the corresponding
-      der encoded certificate.</p> 
+      <p>Signs an 'OTPTBSCertificate'. Returns the corresponding
+      DER-encoded certificate.</p> 
     </desc> 
   </func> 
 
   <func>
     <name>pkix_sign_types(AlgorithmId) -> {DigestType, SignatureType}</name>
-    <fsummary>Translates signature algorithm oid to erlang digest and signature algorithm types.</fsummary>
+    <fsummary>Translates signature algorithm OID to Erlang digest and signature algorithm types.</fsummary>
     <type>
       <v>AlgorithmId = oid()</v>
-      <d>Signature oid from a certificate or a certificate revocation list</d>
-      <v>DigestType = rsa_digest_type() | dss_digest_type() </v>
+      <d>Signature OID from a certificate or a certificate revocation list.</d>
+      <v>DigestType = rsa_digest_type() | dss_digest_type()</v>
       <v>SignatureType = rsa | dsa</v>
     </type>
     <desc>
-      <p>Translates signature algorithm oid to erlang digest and signature types.
+      <p>Translates signature algorithm OID to Erlang digest and signature types.
       </p>
     </desc>
   </func>
 
   <func>  
     <name>pkix_verify(Cert, Key) -> boolean()</name>
-    <fsummary> Verify pkix x.509 certificate signature.</fsummary>
+    <fsummary>Verifies PKIX x.509 certificate signature.</fsummary>
     <type>
       <v>Cert = der_encoded()</v>
       <v>Key = rsa_public_key() | dsa_public_key()</v> 
     </type> 
   <desc> 
-    <p> Verify PKIX x.509 certificate signature.</p>
+    <p>Verifies PKIX x.509 certificate signature.</p>
   </desc> 
   </func> 
 
   <func>
     <name>sign(Msg, DigestType, Key) -> binary()</name>
-    <fsummary> Create digital signature.</fsummary>
+    <fsummary>Creates a digital signature.</fsummary>
     <type>
        <v>Msg = binary() | {digest,binary()}</v>
-       <d>The msg is either the binary "plain text" data to be
-       signed or it is the hashed value of "plain text" i.e. the
+       <d>The <c>Msg</c> is either the binary "plain text" data to be
+       signed or it is the hashed value of "plain text", that is, the
        digest.</d>
        <v>DigestType = rsa_digest_type() | dss_digest_type() | ecdsa_digest_type()</v>
        <v>Key = rsa_private_key() | dsa_private_key() | ec_private_key()</v>
   </type>
   <desc>
-    <p> Creates a digital signature.</p> 
+    <p>Creates a digital signature.</p> 
   </desc> 
   </func>   
 
   <func>
     <name>ssh_decode(SshBin,  Type) -> [{public_key(), Attributes::list()}]</name>
-    <fsummary>Decodes a ssh file-binary. </fsummary>
+    <fsummary>Decodes an SSH file-binary.</fsummary>
     <type>
       <v>SshBin = binary()</v>
       <d>Example {ok, SshBin} = file:read_file("known_hosts").</d>
-      <v> Type = public_key | ssh_file()</v>
-      <d>If <c>Type</c> is <c>public_key</c> the binary may be either
-      a rfc4716 public key or a openssh public key.</d>
+      <v>Type = public_key | ssh_file()</v>
+      <d>If <c>Type</c> is <c>public_key</c> the binary can be either
+      an RFC4716 public key or an OpenSSH public key.</d>
     </type>
   <desc>
-    <p> Decodes a ssh file-binary. In the case of know_hosts or
-    auth_keys the binary may include one or more lines of the
+    <p>Decodes an SSH file-binary. In the case of <c>know_hosts</c> or
+    <c>auth_keys</c>, the binary can include one or more lines of the
     file. Returns a list of public keys and their attributes, possible
     attribute values depends on the file type represented by the
     binary.
     </p>
 
     <taglist>
-      <tag>rfc4716 attributes - see RFC 4716</tag>
-      <item>{headers, [{string(), utf8_string()}]}</item>
-      <tag>auth_key attributes - see man sshd </tag>
+      <tag>RFC4716 attributes - see RFC 4716.</tag>
+      <item><p>{headers, [{string(), utf8_string()}]}</p></item>
+      <tag>auth_key attributes - see manual page for sshd.</tag>
       <item>{comment, string()}</item>
       <item>{options, [string()]}</item>
-      <item>{bits, integer()} - In ssh version 1 files</item>
-      <tag>known_host attributes - see man sshd</tag>
+      <item><p>{bits, integer()} - In SSH version 1 files.</p></item>
+      <tag>known_host attributes - see manual page for sshd.</tag>
       <item>{hostnames, [string()]}</item>
       <item>{comment, string()}</item>
-      <item>{bits, integer()} - In ssh version 1 files</item>
+      <item><p>{bits, integer()} - In SSH version 1 files.</p></item>
     </taglist>
 
   </desc>
@@ -719,16 +784,16 @@ fun(#'DistributionPoint'{}, #'CertificateList'{},
 
   <func>
     <name>ssh_encode([{Key, Attributes}], Type) -> binary()</name>
-    <fsummary> Encodes a list of ssh file entries to a binary.</fsummary>
+    <fsummary>Encodes a list of SSH file entries to a binary.</fsummary>
     <type>
       <v>Key = public_key()</v>
       <v>Attributes = list()</v>
       <v>Type = ssh_file()</v>
     </type>
   <desc>
-    <p>Encodes a list of ssh file entries (public keys and attributes) to a binary. Possible
-    attributes depends on the file type, see <seealso
-    marker="#ssh_decode-2"> ssh_decode/2 </seealso></p>
+    <p>Encodes a list of SSH file entries (public keys and attributes) to a binary. Possible
+    attributes depend on the file type, see <seealso
+    marker="#ssh_decode-2"> ssh_decode/2 </seealso>.</p>
   </desc>
   </func>
 
@@ -737,14 +802,14 @@ fun(#'DistributionPoint'{}, #'CertificateList'{},
     <fsummary>Verifies a digital signature.</fsummary>
     <type>
       <v>Msg = binary() | {digest,binary()}</v>
-       <d>The msg is either the binary "plain text" data 
-        or it is the hashed value of "plain text" i.e. the digest.</d>
+       <d>The <c>Msg</c> is either the binary "plain text" data 
+        or it is the hashed value of "plain text", that is, the digest.</d>
       <v>DigestType = rsa_digest_type() | dss_digest_type() | ecdsa_digest_type()</v>
       <v>Signature = binary()</v>
       <v>Key = rsa_public_key() | dsa_public_key() | ec_public_key()</v>
   </type>
   <desc>
-    <p>Verifies a digital signature</p>
+    <p>Veryfies a digital signature.</p>
   </desc> 
   </func>
   
diff --git a/lib/public_key/doc/src/public_key_records.xml b/lib/public_key/doc/src/public_key_records.xml
index d3534846fa..fc2a74a353 100644
--- a/lib/public_key/doc/src/public_key_records.xml
+++ b/lib/public_key/doc/src/public_key_records.xml
@@ -5,7 +5,7 @@
   <header>
     <copyright>
       <year>2008</year>
-      <year>2014</year>
+      <year>2015</year>
       <holder>Ericsson AB, All Rights Reserved</holder>
     </copyright>
     <legalnotice>
@@ -23,7 +23,7 @@
   The Initial Developer of the Original Code is Ericsson AB.
     </legalnotice>
 
-    <title>Public key records</title>
+    <title>Public-Key Records</title>
     <prepared>Ingela Anderton Andin</prepared>
     <responsible></responsible>
     <docno></docno>
@@ -34,28 +34,85 @@
     <file>public_key_records.xml</file>
   </header>
     
-  <p>This chapter briefly describes Erlang records derived from ASN1
-  specifications used to handle public and private keys.
-  The intent is to describe the data types
-  and not to specify the semantics of each component. For information on the
-  semantics, please see the relevant standards and RFCs.</p>
+  <p>This chapter briefly describes Erlang records derived from ASN.1
+  specifications used to handle public key infrastructure.
+  The scope is to describe the data types of each component,
+  not the semantics. For information on the
+  semantics, refer to the relevant standards and RFCs linked in the sections below.</p>
 
   <p>Use the following include directive to get access to the
-  records and constant macros described in the following sections.</p>
+  records and constant macros described in the following sections:</p>
   
   <code> -include_lib("public_key/include/public_key.hrl"). </code>
 
-   <section>
-     <title>Common Data Types</title>   
+ <section>
+    <title>Data Types</title>   
 
     <p>Common non-standard Erlang
-    data types used to described the record fields in the
-    below sections are defined in <seealso
-    marker="public_key">public key reference manual </seealso></p>
-  </section>
+    data types used to describe the record fields in the
+    following sections and which are not defined in the Public Key <seealso
+    marker="public_key">Reference Manual</seealso>
+    follows here:</p>
+    
+    <taglist>
+      <tag><c>time() =</c></tag>
+      <item><p><c>uct_time() | general_time()</c></p></item>
+
+      <tag><c>uct_time() =</c></tag>
+      <item><p><c>{utcTime, "YYMMDDHHMMSSZ"}</c></p></item>
+
+      <tag><c>general_time() =</c></tag>
+      <item><p><c>{generalTime, "YYYYMMDDHHMMSSZ"}</c></p></item>
+ 
+      <tag><c>general_name() =</c></tag>
+      <item><p><c>{rfc822Name, string()}</c></p>
+      <p><c>| {dNSName, string()}</c></p>
+      <p><c>| {x400Address, string()}</c></p>
+      <p><c>| {directoryName, {rdnSequence, [#AttributeTypeAndValue'{}]}}</c></p>
+      <p><c>| {eidPartyName, special_string()}</c></p>
+      <p><c>| {eidPartyName, special_string(), special_string()}</c></p>
+      <p><c>| {uniformResourceIdentifier, string()}</c></p>
+      <p><c>| {ipAddress, string()}</c></p>
+      <p><c>| {registeredId, oid()}</c></p>
+      <p><c>| {otherName, term()}</c></p>
+      </item>
+
+      <tag><c>special_string() =</c></tag>
+      <item><p><c>{teletexString, string()}</c></p>
+      <p><c>| {printableString, string()}</c></p>
+      <p><c>| {universalString, string()}</c></p>
+      <p><c>| {utf8String, binary()}</c></p>
+      <p><c>| {bmpString, string()}</c></p>
+      </item>
+
+      <tag><c>dist_reason() =</c></tag>
+      <item><p><c>unused</c></p>
+      <p><c>| keyCompromise</c></p>
+      <p><c>| cACompromise</c></p>
+      <p><c>| affiliationChanged</c></p>
+      <p><c>| superseded</c></p>
+      <p><c>| cessationOfOperation</c></p>
+      <p><c>| certificateHold</c></p>
+      <p><c>| privilegeWithdrawn</c></p>
+      <p><c>| aACompromise</c></p>
+      </item>
 
+      <tag><c>OID_macro() =</c></tag>
+      <item><p><c>?OID_name()</c></p>
+      </item>
+      
+      <tag><c>OID_name() =</c></tag>
+      <item><p><c>atom()</c></p>
+      </item>
+      
+    </taglist>
+
+  </section>
+  
   <section>
-    <title>RSA as defined by the PKCS-1 standard and  <url href="http://www.ietf.org/rfc/rfc3447.txt"> RFC 3447 </url></title>
+    <title>RSA</title>
+    <p>Erlang representation of <url href="http://www.ietf.org/rfc/rfc3447.txt"> 
+    Rivest-Shamir-Adleman cryptosystem (RSA)</url> keys follows:</p>
     
     <code>
 #'RSAPublicKey'{
@@ -80,16 +137,13 @@
 	prime,           % integer()
 	exponent,        % integer()
 	coefficient      % integer()
- 	 }.	 
-    </code>
+ 	 }.	 </code>
 
   </section>
 
   <section>
-    <title>DSA as defined by
-    <url href="http://csrc.nist.gov/publications/fips/fips186-3/fips_186-3.pdf">  Digital Signature Standard (NIST FIPS PUB 186-2) </url>
-    </title>
-    
+    <title>DSA</title>
+     <p>Erlang representation of <url href="http://www.ietf.org/rfc/rfc6979.txt">Digigital Signature Algorithm (DSA)</url> keys</p>
     <code>	 
 #'DSAPrivateKey',{
 	  version,      % integer()
@@ -104,18 +158,18 @@
          p,         % integer()
 	 q,         % integer()
 	 g          % integer()
-	 }. 
-    </code>
+	 }. </code>
+	
   </section>
 
   <section>
-       <title>ECC (Elliptic Curve) <url href="http://www.ietf.org/rfc/rfc3447.txt"> RFC 5480 </url> 
-    </title>
+       <title>ECDSA </title>
+       <p>Erlang representation of  <url href="http://www.ietf.org/rfc/rfc6979.txt">Elliptic Curve Digital Signature Algorithm (ECDSA)</url> keys follows:</p> 
     
     <code>	 
 #'ECPrivateKey'{
           version,       % integer()
-	  privateKey,    % octet_string()  
+	  privateKey,    % binary()  
 	  parameters,    % der_encoded() - {'EcpkParameters', #'ECParameters'{}} |
 	                                   {'EcpkParameters', {namedCurve, oid()}} |
 	                                   {'EcpkParameters', 'NULL'} % Inherited by CA
@@ -126,14 +180,14 @@
       version,    % integer()
       fieldID,    % #'FieldID'{}
       curve,      % #'Curve'{}
-      base,       % octet_string()       
+      base,       % binary()       
       order,      % integer()        
       cofactor    % integer()
       }.
       
 #'Curve'{
-	a,        % octet_string()
-	b,        % octet_string() 
+	a,        % binary()
+	b,        % binary() 
 	seed      % bitstring() - optional
 
 	}.
@@ -144,10 +198,644 @@
 	}.
 
 #'ECPoint'{
-      point %  octet_string() - the public key
-      }.
-
-    </code>
+      point %  binary() - the public key
+      }.</code>
   </section>
 
+  <section>
+    <title>PKIX Certificates</title>   
+    <p>Erlang representation of PKIX certificates derived from ASN.1 
+    specifications see also <url href="http://www.ietf.org/rfc/rfc5280.txt">X509 certificates (RFC 5280)</url>, also referred to as <c>plain</c> type,  are as follows:</p>
+<code>
+#'Certificate'{
+		tbsCertificate,        % #'TBSCertificate'{}
+		signatureAlgorithm,    % #'AlgorithmIdentifier'{} 
+		signature              % bitstring()
+	       }.
+
+#'TBSCertificate'{
+	  version,              % v1 | v2 | v3 
+	  serialNumber,         % integer() 
+	  signature,            % #'AlgorithmIdentifier'{} 
+	  issuer,               % {rdnSequence, [#AttributeTypeAndValue'{}]} 
+	  validity,             % #'Validity'{}
+	  subject,              % {rdnSequence, [#AttributeTypeAndValue'{}]} 
+	  subjectPublicKeyInfo, % #'SubjectPublicKeyInfo'{}
+	  issuerUniqueID,       % binary() | asn1_novalue
+	  subjectUniqueID,      % binary() | asn1_novalue
+	  extensions            % [#'Extension'{}] 
+	 }.
+	  
+#'AlgorithmIdentifier'{
+	  algorithm,  % oid() 
+	  parameters  % der_encoded()
+	 }.</code>
+
+<p>Erlang alternate representation of PKIX certificate, also referred to as <c>otp</c> type</p>
+	 
+<code>
+#'OTPCertificate'{
+		tbsCertificate,        % #'OTPTBSCertificate'{}
+		signatureAlgorithm,    % #'SignatureAlgorithm'
+		signature              % bitstring()
+	       }.
+
+#'OTPTBSCertificate'{
+	  version,              % v1 | v2 | v3 
+	  serialNumber,         % integer() 
+	  signature,            % #'SignatureAlgorithm'
+	  issuer,               % {rdnSequence, [#AttributeTypeAndValue'{}]} 
+	  validity,             % #'Validity'{}
+	  subject,              % {rdnSequence, [#AttributeTypeAndValue'{}]} 
+	  subjectPublicKeyInfo, % #'OTPSubjectPublicKeyInfo'{}
+	  issuerUniqueID,       % binary() | asn1_novalue
+	  subjectUniqueID,      % binary() | asn1_novalue
+	  extensions            % [#'Extension'{}] 
+	 }.
+	  
+#'SignatureAlgorithm'{
+	  algorithm,  % id_signature_algorithm()
+	  parameters  % asn1_novalue | #'Dss-Parms'{}
+	 }.</code>
+
+<p><c>id_signature_algorithm() = OID_macro()</c></p>
+
+<p>The available OID names are as follows:</p>
+<table>
+  <row>
+    <cell align="left" valign="middle"><em>OID Name</em></cell>
+  </row>
+  <row>
+    <cell align="left" valign="middle">id-dsa-with-sha1</cell>
+      </row>
+      <row>
+	<cell align="left" valign="middle">id-dsaWithSHA1 (ISO or OID to above)</cell>
+      </row>
+       <row>
+	<cell align="left" valign="middle">md2WithRSAEncryption</cell>
+      </row>
+      <row>
+	<cell align="left" valign="middle">md5WithRSAEncryption</cell>
+      </row>
+      <row>
+	<cell align="left" valign="middle">sha1WithRSAEncryption</cell>
+      </row>
+      <row>
+	<cell align="left" valign="middle">sha-1WithRSAEncryption (ISO or OID to above)</cell>
+      </row>
+      <row>
+	<cell align="left" valign="middle">sha224WithRSAEncryption</cell>
+      </row>
+       <row>
+	<cell align="left" valign="middle">sha256WithRSAEncryption</cell>
+      </row>
+     <row>
+	<cell align="left" valign="middle">sha512WithRSAEncryption</cell>
+      </row>
+        <row>
+	  <cell align="left" valign="middle">ecdsa-with-SHA1</cell>
+     </row>
+      <tcaption>Signature Algorithm OIDs </tcaption>
+</table>
+    
+<p>The data type <c>'AttributeTypeAndValue'</c>, is represented as
+ the following erlang record:</p>
+
+<code>
+#'AttributeTypeAndValue'{
+	  type,   % id_attributes()
+	  value   % term() 
+	 }.</code>
+
+<p>The attribute OID name atoms and their corresponding value types
+are as follows:</p>
+<table>
+  <row>
+    <cell align="left" valign="middle"><em>OID Name</em></cell>
+    <cell align="left" valign="middle"><em>Value Type</em></cell>
+  </row>
+  <row>
+    <cell align="left" valign="middle">id-at-name</cell>
+    <cell align="left" valign="middle">special_string()</cell>
+  </row>      
+  <row>
+    <cell align="left" valign="middle">id-at-surname</cell>
+    <cell align="left" valign="middle">special_string()</cell>
+  </row>
+  <row>
+    <cell align="left" valign="middle">id-at-givenName</cell>
+    <cell align="left" valign="middle">special_string()</cell>
+  </row>
+  <row>
+    <cell align="left" valign="middle">id-at-initials </cell>
+    <cell align="left" valign="middle">special_string()</cell>
+  </row>
+  <row>
+    <cell align="left" valign="middle">id-at-generationQualifier</cell>
+    <cell align="left" valign="middle">special_string()</cell>
+  </row>
+  <row>
+    <cell align="left" valign="middle">id-at-commonName</cell>
+    <cell align="left" valign="middle">special_string()</cell>
+  </row>   
+  <row>
+    <cell align="left" valign="middle">id-at-localityName</cell>
+    <cell align="left" valign="middle">special_string()</cell>
+  </row>
+  <row>
+    <cell align="left" valign="middle">id-at-stateOrProvinceName</cell>
+    <cell align="left" valign="middle">special_string()</cell>
+  </row>
+  <row>
+    <cell align="left" valign="middle">id-at-organizationName</cell>
+    <cell align="left" valign="middle">special_string()</cell>
+  </row>
+  <row>
+    <cell align="left" valign="middle">id-at-title</cell>
+    <cell align="left" valign="middle">special_string()</cell>
+  </row>
+  <row>
+    <cell align="left" valign="middle">id-at-dnQualifier</cell>
+    <cell align="left" valign="middle">{printableString, string()}</cell>
+  </row>
+  <row>
+    <cell align="left" valign="middle">id-at-countryName</cell>
+    <cell align="left" valign="middle">{printableString, string()}</cell>
+  </row>
+  <row>
+    <cell align="left" valign="middle">id-at-serialNumber</cell>
+    <cell align="left" valign="middle">{printableString, string()}</cell>
+  </row>      
+  <row>
+    <cell align="left" valign="middle">id-at-pseudonym</cell>
+    <cell align="left" valign="middle">special_string()</cell>
+  </row>
+  <tcaption>Attribute OIDs</tcaption>
+</table>
+    
+<p>The data types <c>'Validity'</c>, <c>'SubjectPublicKeyInfo'</c>, and 
+<c>'SubjectPublicKeyInfoAlgorithm'</c> are represented as the following Erlang records:</p>
+
+<code>
+#'Validity'{ 
+	  notBefore, % time()
+	  notAfter   % time()
+	 }.
+	 
+#'SubjectPublicKeyInfo'{
+	  algorithm,       % #AlgorithmIdentifier{} 
+	  subjectPublicKey % binary() 
+	 }.
+
+#'SubjectPublicKeyInfoAlgorithm'{
+	  algorithm,  % id_public_key_algorithm()
+	  parameters  % public_key_params()
+	 }.</code>
+
+<p>The public-key algorithm OID name atoms are as follows:</p>
+<table>
+  <row>
+    <cell align="left" valign="middle"><em>OID Name</em></cell>
+  </row>
+  <row>
+    <cell align="left" valign="middle">rsaEncryption</cell>
+      </row>
+      <row>
+	<cell align="left" valign="middle">id-dsa</cell>
+      </row>
+      <row>
+	<cell align="left" valign="middle">dhpublicnumber</cell>
+      </row>
+      <row>
+	<cell align="left" valign="middle">id-keyExchangeAlgorithm</cell>
+      </row>
+      <row>
+	<cell align="left" valign="middle">id-ecPublicKey</cell>
+      </row>
+      <tcaption>Public-Key Algorithm OIDs</tcaption>
+</table>
+    
+<code>
+#'Extension'{
+	  extnID,    % id_extensions() | oid() 
+	  critical,  % boolean()
+	  extnValue  % der_encoded()
+	 }.</code>
+
+<p><c>id_extensions()</c>  
+  <seealso marker="#StdCertExt">Standard Certificate Extensions</seealso>, 
+  <seealso marker="#PrivIntExt">Private Internet Extensions</seealso>,  
+  <seealso marker="#CRLCertExt">CRL Extensions</seealso> and 
+  <seealso marker="#CRLEntryExt">CRL Entry Extensions</seealso>.
+</p>
+    
+</section>
+  
+<section>
+  <marker id="StdCertExt"></marker>
+  <title>Standard Certificate Extensions</title>
+    
+  <p>The standard certificate extensions OID name atoms and their 
+  corresponding value types are as follows:</p>
+
+  <table>
+      <row>
+	<cell align="left" valign="middle"><em>OID Name</em></cell>
+	<cell align="left" valign="middle"><em>Value Type</em></cell>
+      </row>
+      <row>
+	<cell align="left" valign="middle">id-ce-authorityKeyIdentifier</cell>
+	<cell align="left" valign="middle">#'AuthorityKeyIdentifier'{}</cell>
+      </row>
+      <row>
+	<cell align="left" valign="middle">id-ce-subjectKeyIdentifier</cell>
+	<cell align="left" valign="middle">oid()</cell>
+      </row>
+      <row>
+	<cell align="left" valign="middle">id-ce-keyUsage</cell>
+	<cell align="left" valign="middle">[key_usage()]</cell>
+      </row>
+      <row>
+	<cell align="left" valign="middle">id-ce-privateKeyUsagePeriod</cell>
+	<cell align="left" valign="middle">#'PrivateKeyUsagePeriod'{}</cell>
+      </row>
+      <row>
+	<cell align="left" valign="middle">id-ce-certificatePolicies</cell>
+	<cell align="left" valign="middle">#'PolicyInformation'{}</cell>
+      </row>
+      
+      <row>
+	<cell align="left" valign="middle">id-ce-policyMappings</cell>
+	<cell align="left" valign="middle">#'PolicyMappings_SEQOF'{}</cell>
+      </row>
+      
+      <row>
+	<cell align="left" valign="middle">id-ce-subjectAltName</cell>
+	<cell align="left" valign="middle">general_name()</cell>
+      </row>
+
+      <row>
+	<cell align="left" valign="middle">id-ce-issuerAltName</cell>
+	<cell align="left" valign="middle">general_name()</cell>
+      </row>
+      
+      <row>
+	<cell align="left" valign="middle">id-ce-subjectDirectoryAttributes</cell>
+	<cell align="left" valign="middle"> [#'Attribute'{}]</cell>
+      </row>
+
+      <row>
+          <cell align="left" valign="middle">id-ce-basicConstraints</cell>
+	  <cell align="left" valign="middle">#'BasicConstraints'{}</cell>
+      </row>
+      <row>
+	<cell align="left" valign="middle">id-ce-nameConstraints</cell>
+	<cell align="left" valign="middle">#'NameConstraints'{}</cell>
+      </row>
+      <row>
+	<cell align="left" valign="middle">id-ce-policyConstraints</cell>
+	<cell align="left" valign="middle">#'PolicyConstraints'{}</cell>
+      </row>
+      <row>
+	<cell align="left" valign="middle">id-ce-extKeyUsage</cell>
+	<cell align="left" valign="middle">[id_key_purpose()]</cell>
+      </row>
+      
+      <row>
+	<cell align="left" valign="middle">id-ce-cRLDistributionPoints</cell>
+	<cell align="left" valign="middle">[#'DistributionPoint'{}]</cell>
+      </row>
+      
+      <row>
+	<cell align="left" valign="middle">id-ce-inhibitAnyPolicy</cell>
+	<cell align="left" valign="middle">integer()</cell>
+      </row>
+      
+      <row>
+	<cell align="left" valign="middle">id-ce-freshestCRL</cell>
+	<cell align="left" valign="middle">[#'DistributionPoint'{}]</cell>
+      </row>
+      
+      
+      <tcaption>Standard Certificate Extensions</tcaption>
+    </table>
+
+    <p>Here:</p>
+    <taglist>
+      <tag><c>key_usage()</c></tag>
+      <item>= <p><c>digitalSignature</c></p>
+      <p><c>| nonRepudiation</c></p>
+      <p><c>| keyEncipherment</c></p>
+      <p><c>| dataEncipherment</c></p>
+      <p><c>| keyAgreement</c></p>
+      <p><c>| keyCertSign</c></p>
+      <p><c>| cRLSign</c></p>
+      <p><c>| encipherOnly</c></p>
+      <p><c>| decipherOnly </c></p>
+      </item>
+    </taglist>
+   
+    <p>And for <c>id_key_purpose()</c>:</p>
+    
+<table>
+  <row>
+    <cell align="left" valign="middle"><em>OID Name</em></cell>
+  </row>
+  <row>
+    <cell align="left" valign="middle">id-kp-serverAuth</cell>
+      </row>
+      <row>
+	<cell align="left" valign="middle">id-kp-clientAuth</cell>
+      </row>
+      <row>
+	<cell align="left" valign="middle">id-kp-codeSigning</cell>
+      </row>
+      <row>
+	<cell align="left" valign="middle">id-kp-emailProtection</cell>
+      </row>
+       <row>
+	<cell align="left" valign="middle">id-kp-timeStamping</cell>
+      </row>
+       <row>
+	<cell align="left" valign="middle">id-kp-OCSPSigning</cell>
+      </row>
+      <tcaption>Key Purpose OIDs</tcaption>
+</table>
+    
+    <code>
+#'AuthorityKeyIdentifier'{
+	  keyIdentifier,	    % oid()
+	  authorityCertIssuer,      % general_name()
+	  authorityCertSerialNumber % integer() 
+	 }.
+
+#'PrivateKeyUsagePeriod'{
+	  notBefore,   % general_time()
+	  notAfter     % general_time()
+	 }.
+
+#'PolicyInformation'{
+	  policyIdentifier,  % oid()
+	  policyQualifiers   % [#PolicyQualifierInfo{}]
+	 }.
+
+#'PolicyQualifierInfo'{
+	  policyQualifierId,   % oid()
+	  qualifier            % string() | #'UserNotice'{}
+	 }.
+
+#'UserNotice'{
+         noticeRef,   % #'NoticeReference'{}
+	 explicitText % string()
+	 }.
+
+#'NoticeReference'{
+         organization,    % string()
+	 noticeNumbers    % [integer()]
+	 }.
+
+#'PolicyMappings_SEQOF'{
+	  issuerDomainPolicy,  % oid()
+	  subjectDomainPolicy  % oid()
+	 }.
+
+#'Attribute'{
+          type,  % oid()
+	  values % [der_encoded()]
+	  }).
+
+#'BasicConstraints'{
+	  cA,		    % boolean()
+	  pathLenConstraint % integer()
+	 }).
+
+#'NameConstraints'{
+	  permittedSubtrees, % [#'GeneralSubtree'{}]
+	  excludedSubtrees   % [#'GeneralSubtree'{}]
+	 }).
+
+#'GeneralSubtree'{
+	  base,    % general_name()
+	  minimum, % integer()
+	  maximum  % integer()
+	 }).
+
+#'PolicyConstraints'{
+	  requireExplicitPolicy, % integer()
+	  inhibitPolicyMapping   % integer()
+	 }).
+
+#'DistributionPoint'{
+	  distributionPoint, % {fullName, [general_name()]} | {nameRelativeToCRLIssuer,
+	  [#AttributeTypeAndValue{}]}
+	  reasons,           % [dist_reason()]
+	  cRLIssuer          % [general_name()]
+	 }).</code>
+
+</section>
+
+ <section>
+   <marker id="PrivIntExt"></marker>
+   <title>Private Internet Extensions</title>   
+
+   <p>The private internet extensions OID name atoms and their corresponding value 
+   types are as follows:</p>
+
+   <table>
+        <row>
+          <cell align="left" valign="middle"><em>OID Name</em></cell>
+          <cell align="left" valign="middle"><em>Value Type</em></cell>
+        </row>
+        <row>
+          <cell align="left" valign="middle">id-pe-authorityInfoAccess</cell>
+          <cell align="left" valign="middle">[#'AccessDescription'{}]</cell>
+        </row>
+	<row>
+          <cell align="left" valign="middle">id-pe-subjectInfoAccess</cell>
+          <cell align="left" valign="middle">[#'AccessDescription'{}]</cell>
+        </row>
+        <tcaption>Private Internet Extensions</tcaption>
+      </table>   
+ 
+<code>
+#'AccessDescription'{
+           accessMethod,    % oid()
+	   accessLocation   % general_name()
+	 }).</code>
+
+ </section>
+ 
+<section>
+    <title>CRL and CRL Extensions Profile</title>
+
+    <p>Erlang representation of CRL and CRL extensions profile 
+    derived from ASN.1 specifications and RFC 5280 are as follows:</p>
+
+ <code>
+#'CertificateList'{
+          tbsCertList,        % #'TBSCertList{}
+          signatureAlgorithm, % #'AlgorithmIdentifier'{} 
+          signature           % bitstring()
+	  }).
+
+#'TBSCertList'{
+      version,             % v2 (if defined)
+      signature,           % #AlgorithmIdentifier{}
+      issuer,              % {rdnSequence, [#AttributeTypeAndValue'{}]} 
+      thisUpdate,          % time()
+      nextUpdate,          % time() 
+      revokedCertificates, % [#'TBSCertList_revokedCertificates_SEQOF'{}]
+      crlExtensions        % [#'Extension'{}]
+      }).
+
+#'TBSCertList_revokedCertificates_SEQOF'{
+         userCertificate,      % integer()
+ 	 revocationDate,       % timer()
+	 crlEntryExtensions    % [#'Extension'{}]
+	 }).</code>
+ 
+ <section>
+   <marker id="CRLCertExt"></marker>
+   <title>CRL Extensions</title>
+
+   <p>The CRL extensions OID name atoms and their corresponding value types are as follows:</p>
+   
+   
+        <table>
+        <row>
+          <cell align="left" valign="middle"><em>OID Name</em></cell>
+          <cell align="left" valign="middle"><em>Value Type</em></cell>
+        </row>
+        <row>
+          <cell align="left" valign="middle">id-ce-authorityKeyIdentifier</cell>
+          <cell align="left" valign="middle">#'AuthorityKeyIdentifier{}</cell>
+        </row>
+        <row>
+          <cell align="left" valign="middle">id-ce-issuerAltName</cell>
+          <cell align="left" valign="middle">{rdnSequence, [#AttributeTypeAndValue'{}]}</cell>
+           </row>
+	    <row>
+          <cell align="left" valign="middle">id-ce-cRLNumber</cell>
+          <cell align="left" valign="middle">integer()</cell>
+           </row>
+	    <row>
+          <cell align="left" valign="middle">id-ce-deltaCRLIndicator</cell>
+          <cell align="left" valign="middle">integer()</cell>
+           </row>
+	    <row>
+          <cell align="left" valign="middle">id-ce-issuingDistributionPoint</cell>
+          <cell align="left" valign="middle">#'IssuingDistributionPoint'{}</cell>
+           </row>
+	   <row>
+          <cell align="left" valign="middle">id-ce-freshestCRL</cell>
+          <cell align="left" valign="middle">[#'Distributionpoint'{}]</cell>
+           </row>
+	   
+        <tcaption>CRL Extensions</tcaption>
+      </table>
+      
+      <p>Here, the data type <c>'IssuingDistributionPoint'</c> is represented as 
+      the following Erlang record:</p>
+
+      <code>
+#'IssuingDistributionPoint'{
+          distributionPoint,         % {fullName, [general_name()]} | {nameRelativeToCRLIssuer,
+	  [#AttributeTypeAndValue'{}]}
+	  onlyContainsUserCerts,     % boolean()
+	  onlyContainsCACerts,       % boolean()
+	  onlySomeReasons,           % [dist_reason()]
+	  indirectCRL,               % boolean()
+	  onlyContainsAttributeCerts % boolean()
+	  }).</code> 
+ </section>
+ 
+ <section>
+   <marker id="CRLEntryExt"></marker>
+   <title>CRL Entry Extensions</title>
+
+   <p>The CRL entry extensions OID name atoms and their corresponding value types are as follows:</p>
+
+       <table>
+        <row>
+          <cell align="left" valign="middle"><em>OID Name</em></cell>
+          <cell align="left" valign="middle"><em>Value Type</em></cell>
+        </row>
+        <row>
+          <cell align="left" valign="middle">id-ce-cRLReason</cell>
+          <cell align="left" valign="middle">crl_reason()</cell>
+        </row>
+        <row>
+          <cell align="left" valign="middle">id-ce-holdInstructionCode</cell>
+          <cell align="left" valign="middle">oid()</cell>
+           </row>
+	    <row>
+          <cell align="left" valign="middle">id-ce-invalidityDate</cell>
+          <cell align="left" valign="middle">general_time()</cell>
+           </row>
+	    <row>
+          <cell align="left" valign="middle">id-ce-certificateIssuer</cell>
+          <cell align="left" valign="middle">general_name()</cell>
+           </row>
+	   <tcaption>CRL Entry Extensions</tcaption>
+       </table>
+
+
+       <p>Here:</p>
+       <taglist>
+      <tag><c>crl_reason()</c></tag>
+      <item>= <p><c>unspecified</c></p>
+      <p><c>| keyCompromise</c></p>
+      <p><c>| cACompromise</c></p>
+      <p><c>| affiliationChanged</c></p>
+      <p><c>| superseded</c></p>
+      <p><c>| cessationOfOperation</c></p>
+      <p><c>| certificateHold</c></p>
+      <p><c>| removeFromCRL</c></p>
+      <p><c>| privilegeWithdrawn</c></p>
+      <p><c>| aACompromise</c></p>
+      </item>
+       </taglist>
+
+ </section>
+
+ <section>
+   <marker id="PKCS10"></marker>
+   <title>PKCS#10 Certification Request</title>
+   <p>Erlang representation of a PKCS#10 certification request 
+   derived from ASN.1 specifications and RFC 5280 are as follows:</p>
+   <code>
+#'CertificationRequest'{
+          certificationRequestInfo #'CertificationRequestInfo'{},
+	  signatureAlgorithm	   #'CertificationRequest_signatureAlgorithm'{}}.
+	  signature                bitstring()
+	  }
+
+#'CertificationRequestInfo'{
+	  version       atom(),
+	  subject       {rdnSequence, [#AttributeTypeAndValue'{}]} ,
+	  subjectPKInfo #'CertificationRequestInfo_subjectPKInfo'{},
+	  attributes    [#'AttributePKCS-10' {}]
+	  }
+
+#'CertificationRequestInfo_subjectPKInfo'{
+          algorithm		#'CertificationRequestInfo_subjectPKInfo_algorithm'{}
+	  subjectPublicKey 	  bitstring()
+	  }
+
+#'CertificationRequestInfo_subjectPKInfo_algorithm'{
+     algorithm = oid(),
+     parameters = der_encoded()
+}	  
+
+#'CertificationRequest_signatureAlgorithm'{
+     algorithm = oid(),
+     parameters = der_encoded()
+     }
+
+#'AttributePKCS-10'{
+    type = oid(),
+    values = [der_encoded()]
+}  </code> 
+ </section>
+</section>
 </chapter>
diff --git a/lib/public_key/doc/src/ref_man.xml b/lib/public_key/doc/src/ref_man.xml
index b7078891d4..9c80cf4b9f 100644
--- a/lib/public_key/doc/src/ref_man.xml
+++ b/lib/public_key/doc/src/ref_man.xml
@@ -31,8 +31,8 @@
     <file>ref_man.xml</file>
   </header>
   <description>
-    <p> Provides functions to handle public key infrastructure
-    from RFC 3280 (X.509 certificates) and some parts of the PKCS-standard.
+    <p>The <c>public_key</c> application provides functions to handle public-key infrastructure
+    from RFC 3280 (X.509 certificates) and parts of the PKCS standard.
     </p>
   </description>
   <xi:include href="public_key.xml"/>
diff --git a/lib/public_key/doc/src/using_public_key.xml b/lib/public_key/doc/src/using_public_key.xml
index 450bd7e35f..03e4bedf3d 100644
--- a/lib/public_key/doc/src/using_public_key.xml
+++ b/lib/public_key/doc/src/using_public_key.xml
@@ -22,48 +22,50 @@
     </legalnotice>
 
     <title>Getting Started</title>
+    <prepared></prepared>
+    <docno></docno>
+    <date></date>
+    <rev></rev>
     <file>using_public_key.xml</file>
   </header>
 
-  <section>
-    <title>General information</title>
+  <p>This section describes examples of how to use the 
+    Public Key API. Keys and certificates used in the following 
+    sections are generated only for testing the Public Key 
+    application.</p>
 
-    <p> This chapter is dedicated to showing some
-    examples of how to use the public_key API. Keys and certificates
-    used in the following sections are generated only for the purpose
-    of testing the public key application.</p>
+    <p>Some shell printouts in the following examples
+    are abbreviated for increased readability.</p>
 
-    <p>Note that some shell printouts, in the following examples,
-    have been abbreviated for increased readability.</p>
+     
+  <section>
+    <title>PEM Files</title>
+    <p>Public-key data (keys, certificates, and so on) can be stored in 
+    Privacy Enhanced Mail (PEM) format. 
+    The PEM files have the following structure:</p>
     
-  </section>
+    <code>
+    &lt;text&gt;
+    -----BEGIN &lt;SOMETHING&gt;-----
+    &lt;Attribute&gt; : &lt;Value&gt;
+    &lt;Base64 encoded DER data&gt;
+    -----END &lt;SOMETHING&gt;-----
+    &lt;text&gt;</code>
     
-  <section>
-    <title>PEM files</title>
-    <p> Public key data (keys, certificates etc) may be stored in PEM format. PEM files
-    comes from the Private Enhanced Mail Internet standard and has a
-    structure that looks like this:</p>
-
-    <code>&lt;text&gt;
-	-----BEGIN &lt;SOMETHING&gt;-----
-	&lt;Attribute&gt; : &lt;Value&gt;
-	&lt;Base64 encoded DER data&gt;
-	-----END &lt;SOMETHING&gt;-----
-	&lt;text&gt;</code>
-
-    <p>A file can contain several BEGIN/END blocks. Text lines between
-    blocks are ignored.  Attributes, if present, are currently ignored except
-    for <c>Proc-Type</c> and <c>DEK-Info</c> that are used when the DER data is
-    encrypted.</p>
+    <p>A file can contain several <c>BEGIN/END</c> blocks. Text lines between
+    blocks are ignored. Attributes, if present, are ignored except
+    for <c>Proc-Type</c> and <c>DEK-Info</c>, which are used when <c>DER</c> 
+    data is encrypted.</p>
 
     <section>
-      <title>DSA private key</title>
+      <title>DSA Private Key</title>
+      <p>A DSA private key can look as follows:</p>
+      <note><p>File handling is not done by the Public Key application.</p></note>
       
-      <p>Note file handling is not done by the public_key application. </p>
       <code>1> {ok, PemBin} = file:read_file("dsa.pem").
 {ok,&lt;&lt;"-----BEGIN DSA PRIVATE KEY-----\nMIIBuw"...&gt;&gt;}</code>
       
-      <p>This PEM file only has one entry, a private DSA key.</p>
+      <p>The following PEM file has only one entry, a private DSA key:</p>
       <code>2> [DSAEntry] =  public_key:pem_decode(PemBin).
 [{'DSAPrivateKey',&lt;&lt;48,130,1,187,2,1,0,2,129,129,0,183,
                     179,230,217,37,99,144,157,21,228,204,
@@ -80,21 +82,20 @@
     </section>
 
     <section>
-      <title>RSA private key encrypted with a password.</title>
+      <title>RSA Private Key with Password</title>
+      <p>An RSA private key encrypted with a password can look as follows:</p>
       
       <code>1> {ok, PemBin} = file:read_file("rsa.pem").
 {ok,&lt;&lt;"Bag Attribut"...&gt;&gt;}</code>
 
-    <p>This PEM file only has one entry a private RSA key.</p>
+    <p>The following PEM file has only one entry, a private RSA key:</p>
     <code>2>[RSAEntry] = public_key:pem_decode(PemBin).
 [{'RSAPrivateKey',&lt;&lt;224,108,117,203,152,40,15,77,128,126,
                     221,195,154,249,85,208,202,251,109,
                     119,120,57,29,89,19,9,...&gt;&gt;,
-                  {"DES-EDE3-CBC",&lt;&lt;"kÙeø¼pµL"&gt;&gt;}}]
+                  {"DES-EDE3-CBC",&lt;&lt;"kÙeø¼pµL"&gt;&gt;}}]</code>
 
-    </code>
-
-    <p>In this example the password is "abcd1234".</p>
+    <p>In this following example, the password is <c>"abcd1234"</c>:</p>
     <code>3> Key = public_key:pem_entry_decode(RSAEntry, "abcd1234").
     #'RSAPrivateKey'{version = 'two-prime',
                  modulus = 1112355156729921663373...2737107,
@@ -110,11 +111,12 @@
   
   <section>
     <title>X509 Certificates</title>
+    <p>The following is an example of X509 certificates:</p>
     
       <code>1> {ok, PemBin} = file:read_file("cacerts.pem").
 {ok,&lt;&lt;"-----BEGIN CERTIFICATE-----\nMIIC7jCCAl"...&gt;&gt;}</code>
 
-      <p>This file includes two certificates</p>
+      <p>The following file includes two certificates:</p>
       <code>2> [CertEntry1, CertEntry2] = public_key:pem_decode(PemBin).
 [{'Certificate',&lt;&lt;48,130,2,238,48,130,2,87,160,3,2,1,2,2,
                   9,0,230,145,97,214,191,2,120,150,48,13,
@@ -124,7 +126,7 @@
                   1,48,13,6,9,42,134,72,134,247,...&gt;&gt;>,
                 not_encrypted}]</code>
       
-      <p>Certificates may of course be decoded as usual ... </p>
+      <p>Certificates can be decoded as usual:</p>
       <code>2> Cert = public_key:pem_entry_decode(CertEntry1).
 #'Certificate'{
     tbsCertificate =
@@ -210,24 +212,24 @@
             algorithm = {1,2,840,113549,1,1,5},
             parameters = &lt;&lt;5,0&gt;&gt;},
     signature =
-        {0,
-         &lt;&lt;163,186,7,163,216,152,63,47,154,234,139,73,154,96,120,
-           165,2,52,196,195,109,167,192,...&gt;&gt;}}
-</code>
-
-      <p> Parts of certificates can be decoded with
-      public_key:der_decode/2 using that parts ASN.1 type.
-      Although application specific certificate
-      extension requires application specific ASN.1 decode/encode-functions.
-      Example, the first value of the rdnSequence above is of ASN.1 type
-      'X520CommonName'. ({2,5,4,3} = ?id-at-commonName)</p>
+    &lt;&lt;163,186,7,163,216,152,63,47,154,234,139,73,154,96,120,
+    165,2,52,196,195,109,167,192,...&gt;&gt;}</code>
+
+      <p>Parts of certificates can be decoded with
+      <c>public_key:der_decode/2</c>, using the ASN.1 type of that part.
+      However, an application-specific certificate extension requires 
+      application-specific ASN.1 decode/encode-functions.
+      In the recent example, the first value of <c>rdnSequence</c> is 
+      of ASN.1 type <c>'X520CommonName'. ({2,5,4,3} = ?id-at-commonName)</c>:</p>
       
       <code>public_key:der_decode('X520CommonName', &lt;&lt;19,8,101,114,108,97,110,103,67,65&gt;&gt;).
 {printableString,"erlangCA"}</code>
 
-      <p>... but certificates can also be decode using the pkix_decode_cert/2 that
-      can customize and recursively decode standard parts of a certificate.</p>
+      <p>However, certificates can also be decoded using <c>pkix_decode_cert/2</c>, 
+      which can customize and recursively decode standard parts of a certificate:</p>
+
       <code>3>{_, DerCert, _} = CertEntry1.</code>
+
       <code>4> public_key:pkix_decode_cert(DerCert, otp).
 #'OTPCertificate'{
     tbsCertificate =
@@ -314,30 +316,27 @@
             algorithm = {1,2,840,113549,1,1,5},
             parameters = 'NULL'},
     signature =
-        {0,
          &lt;&lt;163,186,7,163,216,152,63,47,154,234,139,73,154,96,120,
-           165,2,52,196,195,109,167,192,...&gt;&gt;}}
-</code>
+           165,2,52,196,195,109,167,192,...&gt;&gt;}</code>
 
-      <p>This call is equivalent to public_key:pem_entry_decode(CertEntry1)</p>
+      <p>This call is equivalent to <c>public_key:pem_entry_decode(CertEntry1)</c>:</p>
       <code>5> public_key:pkix_decode_cert(DerCert, plain).
-#'Certificate'{ ...}
-</code>
+#'Certificate'{ ...}</code>
   </section>
 
   <section>
-    <title>Encoding public key data to PEM format</title>
+    <title>Encoding Public-Key Data to PEM Format</title>
 
-    <p>If you have public key data and and want to create a PEM file
-    you can do that by calling the functions
-    public_key:pem_entry_encode/2 and pem_encode/1 and then saving the
-    result to a file. For example assume you have PubKey =
-    'RSAPublicKey'{} then you can create a PEM-"RSA PUBLIC KEY" file
-    (ASN.1 type 'RSAPublicKey') or a PEM-"PUBLIC KEY" file
-    ('SubjectPublicKeyInfo' ASN.1 type).</p>
+    <p>If you have public-key data and want to create a PEM file
+    this can be done by calling functions
+    <c>public_key:pem_entry_encode/2</c> and <c>pem_encode/1</c> and 
+    saving the result to a file. For example, assume that you have 
+    <c>PubKey = 'RSAPublicKey'{}</c>. Then you can create a PEM-"RSA PUBLIC KEY" 
+    file (ASN.1 type <c>'RSAPublicKey'</c>) or a PEM-"PUBLIC KEY" file
+    (<c>'SubjectPublicKeyInfo'</c> ASN.1 type).</p>
 
-    <p> The second element of the PEM-entry will be the ASN.1 DER encoded
-    key data.</p>
+    <p>The second element of the PEM-entry is the ASN.1 <c>DER</c> encoded
+    key data:</p>
 
     <code>1> PemEntry = public_key:pem_entry_encode('RSAPublicKey', RSAPubKey).
 {'RSAPublicKey', &lt;&lt;48,72,...&gt;&gt;, not_encrypted}
@@ -348,7 +347,7 @@
 3> file:write_file("rsa_pub_key.pem", PemBin).
 ok</code>
 
-    <p> or </p>
+    <p>or:</p>
 
     <code>1> PemEntry = public_key:pem_entry_encode('SubjectPublicKeyInfo', RSAPubKey).
 {'SubjectPublicKeyInfo', &lt;&lt;48,92...&gt;&gt;, not_encrypted}
@@ -363,96 +362,108 @@ ok</code>
 </section>
 
 <section>
-      <title>RSA public key cryptography </title>
-       <p> Suppose you have PrivateKey = #'RSAPrivateKey{}' and the
-       plaintext Msg = binary() and the corresponding public key
-       PublicKey = #'RSAPublicKey'{} then you can do the following.
-       Note that you normally will only do one of the encrypt or
-       decrypt operations and the peer will do the other.
-       </p>
-
-       <p>Encrypt with the private key </p>
+      <title>RSA Public-Key Cryptography</title>
+       <p>Suppose you have the following private key and a corresponding public key:</p>
+       <list type="bulleted">
+	 <item><c>PrivateKey = #'RSAPrivateKey{}'</c> and 
+	 the plaintext <c>Msg = binary()</c></item>
+	 <item><c>PublicKey = #'RSAPublicKey'{}</c>
+	 </item>
+       </list>
+       <p>Then you can proceed as follows:</p>
+
+       <p>Encrypt with the private key:</p>
        <code>RsaEncrypted = public_key:encrypt_private(Msg, PrivateKey),
 Msg = public_key:decrypt_public(RsaEncrypted, PublicKey),</code>
 
-       <p>Encrypt with the public key </p>
+       <p>Encrypt with the public key:</p>
        <code>RsaEncrypted = public_key:encrypt_public(Msg, PublicKey),
 Msg = public_key:decrypt_private(RsaEncrypted, PrivateKey),</code>
+
+      <note><p>You normally do only one of the encrypt or decrypt operations, 
+      and the peer does the other. This normaly used in legacy applications
+      as a primitive digital signature.
+      </p></note>
+
   </section>
 
   <section>
-    <title>Digital signatures</title>
+    <title>Digital Signatures</title>
 
-    <p> Suppose you have PrivateKey = #'RSAPrivateKey{}'or
-    #'DSAPrivateKey'{} and the plaintext Msg = binary() and the
-    corresponding public key PublicKey = #'RSAPublicKey'{} or
-    {integer(), #'DssParams'{}} then you can do the following.  Note
-    that you normally will only do one of the sign or verify operations
-    and the peer will do the other. </p>
+    <p>Suppose you have the following private key and a corresponding public key:</p>
+    
+    <list type="bulleted">
+       <item><c>PrivateKey = #'RSAPrivateKey{}'</c> or
+       <c>#'DSAPrivateKey'{}</c> and the plaintext <c>Msg = binary()</c></item>
+       <item><c>PublicKey = #'RSAPublicKey'{}</c> or
+       <c>{integer(), #'DssParams'{}}</c></item>
+     </list>
+     <p>Then you can proceed as follows:</p>
 
     <code>Signature = public_key:sign(Msg, sha, PrivateKey),
 true = public_key:verify(Msg, sha, Signature, PublicKey),</code>
 
-    <p>It might be appropriate to calculate the message digest before
-    calling sign or verify and then you can use the none as second
-    argument.</p>
+    <note><p>You normally do only one of the sign or verify operations,
+    and the peer does the other.</p></note>
+
+    <p>It can be appropriate to calculate the message digest before
+    calling <c>sign</c> or <c>verify</c>, and then use <c>none</c> as 
+    second argument:</p>
 
     <code>Digest = crypto:sha(Msg),
 Signature = public_key:sign(Digest, none, PrivateKey),
-true = public_key:verify(Digest, none, Signature, PublicKey),
-    </code>
+true = public_key:verify(Digest, none, Signature, PublicKey),</code>
     
   </section>
   
   <section>
-    <title>SSH files</title>
+    <title>SSH Files</title>
     
     <p>SSH typically uses PEM files for private keys but has its
-    own file format for storing public keys. The erlang public_key
-    application can be used to parse the content of SSH public key files.</p>
+    own file format for storing public keys. The <c>public_key</c>
+    application can be used to parse the content of SSH public-key files.</p>
 
     <section>
-   <title> RFC 4716 SSH public key files </title>
+   <title>RFC 4716 SSH Public-Key Files</title>
 
     <p>RFC 4716 SSH files looks confusingly like PEM files,
-       but there are some differences.</p>
+       but there are some differences:</p>
       <code>1> {ok, SshBin} = file:read_file("ssh2_rsa_pub").
 {ok, &lt;&lt;"---- BEGIN SSH2 PUBLIC KEY ----\nAAAA"...&gt;&gt;}</code>
 
-    <p>This is equivalent to calling public_key:ssh_decode(SshBin, rfc4716_public_key).
+    <p>This is equivalent to calling <c>public_key:ssh_decode(SshBin, rfc4716_public_key)</c>:
     </p>
       <code>2> public_key:ssh_decode(SshBin, public_key).
 [{#'RSAPublicKey'{modulus = 794430685...91663,
-                  publicExponent = 35}, []}]
-</code>
+                  publicExponent = 35}, []}]</code>
 
  </section>
 
  <section>
-   <title> Openssh public key format </title>
+   <title>OpenSSH Public-Key Format</title>
+   <p>OpenSSH public-key format looks as follows:</p>
       <code>1> {ok, SshBin} = file:read_file("openssh_dsa_pub").
 {ok,&lt;&lt;"ssh-dss AAAAB3Nza"...&gt;&gt;}</code>
 
-    <p>This is equivalent to calling public_key:ssh_decode(SshBin, openssh_public_key).
+    <p>This is equivalent to calling <c>public_key:ssh_decode(SshBin, openssh_public_key)</c>:
     </p>
     <code>2>  public_key:ssh_decode(SshBin, public_key).
 [{{15642692...694280725,
    #'Dss-Parms'{p = 17291273936...696123221,
                 q = 1255626590179665817295475654204371833735706001853,
                 g = 10454211196...480338645}},
-  [{comment,"dhopson@VMUbuntu-DSH"}]}]
-</code>
+  [{comment,"dhopson@VMUbuntu-DSH"}]}]</code>
  </section>
 
  <section>
-   <title> Known hosts - openssh format</title>
-
+   <title>Known Hosts - OpenSSH Format</title>
+   <p>Known hosts - OpenSSH format looks as follows:</p>
       <code>1> {ok, SshBin} = file:read_file("known_hosts").
 {ok,&lt;&lt;"hostname.domain.com,192.168.0.1 ssh-rsa AAAAB...&gt;&gt;}</code>
 
-    <p>Returns a list of public keys and their related attributes
-    each pair of key and attributes corresponds to one entry in
-    the known hosts file.</p>
+    <p>Returns a list of public keys and their related attributes.
+    Each pair of key and attribute corresponds to one entry in
+    the known hosts file:</p>
     
     <code>2>  public_key:ssh_decode(SshBin, known_hosts).
 [{#'RSAPublicKey'{modulus = 1498979460408...72721699,
@@ -461,19 +472,19 @@ true = public_key:verify(Digest, none, Signature, PublicKey),
  {#'RSAPublicKey'{modulus = 14989794604088...2721699,
                   publicExponent = 35},
   [{comment,"[email protected]"},
-   {hostnames,["|1|BWO5qDxk/cFH0wa05JLdHn+j6xQ=|rXQvIxh5cDD3C43k5DPDamawVNA="]}]}]
-</code>
+   {hostnames,["|1|BWO5qDxk/cFH0wa05JLdHn+j6xQ=|rXQvIxh5cDD3C43k5DPDamawVNA="]}]}]</code>
   </section>
 
   <section>
-    <title> Authorized keys - openssh format</title>
+    <title>Authorized Keys - OpenSSH Format</title>
+    <p>Authorized keys - OpenSSH format looks as follows:</p>
 
     <code>1> {ok, SshBin} = file:read_file("auth_keys").
 {ok, &lt;&lt;"command=\"dump /home\",no-pty,no-port-forwarding ssh-rsa AAA...&gt;&gt;}</code>
 
-    <p>Returns a list of public keys and their related attributes
-    each pair of key and attributes corresponds to one entry in
-    the authorized key file.</p>
+    <p>Returns a list of public keys and their related attributes.
+    Each pair of key and attribute corresponds to one entry in
+    the authorized key file:</p>
 
     <code>2> public_key:ssh_decode(SshBin, auth_keys).
 [{#'RSAPublicKey'{modulus = 794430685...691663,
@@ -485,16 +496,15 @@ true = public_key:verify(Digest, none, Signature, PublicKey),
    #'Dss-Parms'{p = 17291273936185...763696123221,
                 q = 1255626590179665817295475654204371833735706001853,
                 g = 10454211195705...60511039590076780999046480338645}},
-  [{comment,"dhopson@VMUbuntu-DSH"}]}]
-</code>
+  [{comment,"dhopson@VMUbuntu-DSH"}]}]</code>
     </section>
 
     <section>
-      <title> Creating an SSH file from public key data </title>
+      <title>Creating an SSH File from Public-Key Data</title>
 
       <p>If you got a public key <c>PubKey</c> and a related list of
       attributes <c>Attributes</c> as returned
-      by ssh_decode/2 you can create a new ssh file for example</p>
+      by <c>ssh_decode/2</c>, you can create a new SSH file, for example:</p>
       <code>N> SshBin = public_key:ssh_encode([{PubKey, Attributes}], openssh_public_key),
 &lt;&lt;"ssh-rsa "...&gt;&gt;
 N+1> file:write_file("id_rsa.pub", SshBin).
diff --git a/lib/public_key/src/pubkey_cert.erl b/lib/public_key/src/pubkey_cert.erl
index 8b11538499..1aa9c6764b 100644
--- a/lib/public_key/src/pubkey_cert.erl
+++ b/lib/public_key/src/pubkey_cert.erl
@@ -445,7 +445,7 @@ extensions_list(Extensions) ->
     Extensions.
 
 extract_verify_data(OtpCert, DerCert) ->
-    {_, Signature} = OtpCert#'OTPCertificate'.signature,
+    Signature = OtpCert#'OTPCertificate'.signature,
     SigAlgRec = OtpCert#'OTPCertificate'.signatureAlgorithm,
     SigAlg = SigAlgRec#'SignatureAlgorithm'.algorithm,
     PlainText = encoded_tbs_cert(DerCert),
diff --git a/lib/public_key/src/pubkey_cert_records.erl b/lib/public_key/src/pubkey_cert_records.erl
index 9a8e49f265..f412d5862e 100644
--- a/lib/public_key/src/pubkey_cert_records.erl
+++ b/lib/public_key/src/pubkey_cert_records.erl
@@ -217,8 +217,8 @@ namedCurves(brainpoolP512t1) -> ?'brainpoolP512t1'.
 %%% SubjectPublicKey
 
 decode_supportedPublicKey(#'OTPSubjectPublicKeyInfo'{algorithm= PA =
-						  #'PublicKeyAlgorithm'{algorithm=Algo},
-						  subjectPublicKey = {0,SPK0}}) ->
+							 #'PublicKeyAlgorithm'{algorithm=Algo},
+						     subjectPublicKey = SPK0}) ->
     Type = supportedPublicKeyAlgorithms(Algo),
     SPK = case Type of
               'ECPoint' -> #'ECPoint'{point = SPK0};
@@ -238,7 +238,7 @@ encode_supportedPublicKey(#'OTPSubjectPublicKeyInfo'{algorithm= PA =
                   {ok, SPK1} = 'OTP-PUB-KEY':encode(Type, SPK0),
                   SPK1
           end,
-    #'OTPSubjectPublicKeyInfo'{subjectPublicKey = {0,SPK}, algorithm=PA}.
+    #'OTPSubjectPublicKeyInfo'{subjectPublicKey = SPK, algorithm=PA}.
 
 %%% Extensions
 
diff --git a/lib/public_key/src/pubkey_crl.erl b/lib/public_key/src/pubkey_crl.erl
index 488cc97c70..0010725da9 100644
--- a/lib/public_key/src/pubkey_crl.erl
+++ b/lib/public_key/src/pubkey_crl.erl
@@ -473,7 +473,7 @@ check_crl_num(_,_) ->
 extension_value(Extension, ExtType, Extensions) ->
     case pubkey_cert:select_extension(Extension, Extensions) of
 	#'Extension'{extnValue = Value} ->
-	    public_key:der_decode(ExtType, list_to_binary(Value));
+	    public_key:der_decode(ExtType, iolist_to_binary(Value));
 	_ ->
 	    undefined
     end.
@@ -565,7 +565,7 @@ verify_crl_signature(CRL, DerCRL, Key, KeyParams) ->
 			      {Key, KeyParams})
     end.
 extract_crl_verify_data(CRL, DerCRL) ->
-    {0, Signature} = CRL#'CertificateList'.signature,
+    Signature = CRL#'CertificateList'.signature,
     #'AlgorithmIdentifier'{algorithm = SigAlg} =
 	CRL#'CertificateList'.signatureAlgorithm,
     PlainText = encoded_tbs_crl(DerCRL),
diff --git a/lib/public_key/src/pubkey_pbe.erl b/lib/public_key/src/pubkey_pbe.erl
index 521a32189d..8c61bc71d4 100644
--- a/lib/public_key/src/pubkey_pbe.erl
+++ b/lib/public_key/src/pubkey_pbe.erl
@@ -106,9 +106,8 @@ pbdkdf2(Password, Salt, Count, DerivedKeyLen, Prf, PrfHash, PrfOutputLen)->
 %%--------------------------------------------------------------------
 decrypt_parameters(#'EncryptedPrivateKeyInfo_encryptionAlgorithm'{
 		      algorithm = Oid, parameters = Param}) ->
-     decrypt_parameters(Oid, Param).
+     decrypt_parameters(Oid, decode_handle_open_type_wrapper(Param)).
     
-
 %%--------------------------------------------------------------------
 -spec encrypt_parameters({Cipher::string(), Params::term()}) -> 
 			#'EncryptedPrivateKeyInfo_encryptionAlgorithm'{}.
@@ -129,7 +128,7 @@ password_to_key_and_iv(Password, _, #'PBES2-params'{} = Params) ->
 password_to_key_and_iv(Password, _Cipher, {#'PBEParameter'{salt = Salt,
 							  iterationCount = Count}, Hash}) ->
     <<Key:8/binary, IV:8/binary, _/binary>> 
-	= pbdkdf1(Password, erlang:iolist_to_binary(Salt), Count, Hash),
+	= pbdkdf1(Password, Salt, Count, Hash),
     {Key, IV};
 password_to_key_and_iv(Password, Cipher, Salt) ->
  KeyLen = derived_key_length(Cipher, undefined),
@@ -151,15 +150,15 @@ do_pbdkdf1(Prev, Count, Acc, Hash) ->
     do_pbdkdf1(Result, Count-1 , <<Result/binary, Acc/binary>>, Hash).
 
 iv(#'PBES2-params_encryptionScheme'{algorithm = Algo,
-				    parameters = ASNIV}) when (Algo == ?'desCBC') or
-							      (Algo == ?'des-EDE3-CBC') ->
-    %% This is an so called open ASN1-type that in this
-    %% case will be an octet-string of length 8
-    <<?ASN1_OCTET_STR_TAG, ?IV_LEN, IV:?IV_LEN/binary>> = ASNIV,
+				    parameters = ASN1IV}) 
+  when (Algo == ?'desCBC') or
+       (Algo == ?'des-EDE3-CBC') ->
+    <<?ASN1_OCTET_STR_TAG, ?IV_LEN, IV:?IV_LEN/binary>> = decode_handle_open_type_wrapper(ASN1IV),
     IV;
 iv(#'PBES2-params_encryptionScheme'{algorithm = ?'rc2CBC',
-				    parameters = ASN1IV}) ->
-    {ok, #'RC2-CBC-Parameter'{iv = IV}} = 'PKCS-FRAME':decode('RC2-CBC-Parameter', ASN1IV),
+				    parameters =  ASN1IV}) ->
+    {ok, #'RC2-CBC-Parameter'{iv = IV}} 
+	= 'PKCS-FRAME':decode('RC2-CBC-Parameter', decode_handle_open_type_wrapper(ASN1IV)),
     iolist_to_binary(IV).
 
 blocks(1, N, Index, Password, Salt, Count, Prf, PrfHash, PrfLen, Acc) ->
@@ -200,13 +199,13 @@ encrypt_parameters(_Cipher, #'PBES2-params'{} = Params) ->
     {ok, Der} ='PKCS-FRAME':encode('PBES2-params', Params),
     #'EncryptedPrivateKeyInfo_encryptionAlgorithm'{
        algorithm = ?'id-PBES2', 
-       parameters = Der};
+       parameters = encode_handle_open_type_wrapper(Der)};
 
 encrypt_parameters(Cipher, {#'PBEParameter'{} = Params, Hash}) ->
     {ok, Der} ='PKCS-FRAME':encode('PBEParameter', Params),
     #'EncryptedPrivateKeyInfo_encryptionAlgorithm'{
        algorithm = pbe1_oid(Cipher, Hash), 
-       parameters = Der}.
+       parameters = encode_handle_open_type_wrapper(Der)}.
 
 pbe1_oid("RC2-CBC", sha) ->
     ?'pbeWithSHA1AndRC2-CBC';
@@ -277,3 +276,8 @@ cipher(#'PBES2-params_encryptionScheme'{algorithm = ?'rc2CBC'}) ->
 
 ceiling(Float) -> 
     erlang:round(Float + 0.5).
+
+decode_handle_open_type_wrapper({asn1_OPENTYPE, Type}) ->
+    Type.
+encode_handle_open_type_wrapper(Type) ->
+    {asn1_OPENTYPE, Type}.
diff --git a/lib/public_key/src/pubkey_pem.erl b/lib/public_key/src/pubkey_pem.erl
index 98881c4a6a..a62658923f 100644
--- a/lib/public_key/src/pubkey_pem.erl
+++ b/lib/public_key/src/pubkey_pem.erl
@@ -143,8 +143,7 @@ decode_encrypted_private_keyinfo(Der) ->
 			       encryptedData = Data} = 
 	public_key:der_decode('EncryptedPrivateKeyInfo', Der),
     DecryptParams = pubkey_pbe:decrypt_parameters(AlgorithmInfo), 
-    {'PrivateKeyInfo', iolist_to_binary(Data), DecryptParams}.
-
+    {'PrivateKeyInfo', Data, DecryptParams}.
 
 encode_encrypted_private_keyinfo(EncData, EncryptParmams) ->
     AlgorithmInfo = pubkey_pbe:encrypt_parameters(EncryptParmams),
diff --git a/lib/public_key/src/public_key.erl b/lib/public_key/src/public_key.erl
index e8ff965982..261054637d 100644
--- a/lib/public_key/src/public_key.erl
+++ b/lib/public_key/src/public_key.erl
@@ -120,7 +120,7 @@ pem_encode(PemEntries) when is_list(PemEntries) ->
 %% pem entries.
 %%--------------------------------------------------------------------
 pem_entry_decode({'SubjectPublicKeyInfo', Der, _}) ->
-    {_, {'AlgorithmIdentifier', AlgId, Params}, {0, Key0}}
+    {_, {'AlgorithmIdentifier', AlgId, Params}, Key0}
         = der_decode('SubjectPublicKeyInfo', Der),
     KeyType = pubkey_cert_records:supportedPublicKeyAlgorithms(AlgId),
     case KeyType of
@@ -168,14 +168,14 @@ pem_entry_decode({Asn1Type, CryptDer, {Cipher, Salt}} = PemEntry,
 pem_entry_encode('SubjectPublicKeyInfo', Entity=#'RSAPublicKey'{}) ->
     Der = der_encode('RSAPublicKey', Entity),
     Spki = {'SubjectPublicKeyInfo',
-            {'AlgorithmIdentifier', ?'rsaEncryption', ?DER_NULL}, {0, Der}},
+            {'AlgorithmIdentifier', ?'rsaEncryption', ?DER_NULL}, Der},
     pem_entry_encode('SubjectPublicKeyInfo', Spki);
 pem_entry_encode('SubjectPublicKeyInfo',
                  {DsaInt, Params=#'Dss-Parms'{}}) when is_integer(DsaInt) ->
     KeyDer = der_encode('DSAPublicKey', DsaInt),
     ParamDer = der_encode('DSAParams', {params, Params}),
     Spki = {'SubjectPublicKeyInfo',
-            {'AlgorithmIdentifier', ?'id-dsa', ParamDer}, {0, KeyDer}},
+            {'AlgorithmIdentifier', ?'id-dsa', ParamDer}, KeyDer},
     pem_entry_encode('SubjectPublicKeyInfo', Spki);
 pem_entry_encode(Asn1Type, Entity)  when is_atom(Asn1Type) ->
     Der = der_encode(Asn1Type, Entity),
@@ -234,7 +234,7 @@ der_encode(Asn1Type, Entity) when (Asn1Type == 'PrivateKeyInfo') or
 				  (Asn1Type == 'EncryptedPrivateKeyInfo') ->
      try
 	{ok, Encoded} = 'PKCS-FRAME':encode(Asn1Type, Entity),
-	iolist_to_binary(Encoded)
+	Encoded
     catch
 	error:{badmatch, {error, _}} = Error ->
 	    erlang:error(Error)
@@ -243,7 +243,7 @@ der_encode(Asn1Type, Entity) when (Asn1Type == 'PrivateKeyInfo') or
 der_encode(Asn1Type, Entity) when is_atom(Asn1Type) ->
     try 
 	{ok, Encoded} = 'OTP-PUB-KEY':encode(Asn1Type, Entity),
-	iolist_to_binary(Encoded)
+	Encoded
     catch	    
 	error:{badmatch, {error, _}} = Error ->
 	    erlang:error(Error)
@@ -391,7 +391,7 @@ generate_key(#'ECParameters'{} = Params) ->
 compute_key(#'ECPoint'{point = Point}, #'ECPrivateKey'{privateKey = PrivKey,
 						       parameters = Param}) ->
     ECCurve = ec_curve_spec(Param),
-    crypto:compute_key(ecdh, Point, list_to_binary(PrivKey), ECCurve).
+    crypto:compute_key(ecdh, Point, PrivKey, ECCurve).
 
 compute_key(PubKey, PrivKey, #'DHParameter'{prime = P, base = G}) ->
     crypto:compute_key(dh, PubKey, PrivKey, [P, G]).
@@ -446,7 +446,7 @@ sign(DigestOrPlainText, sha, #'DSAPrivateKey'{p = P, q = Q, g = G, x = X}) ->
 sign(DigestOrPlainText, DigestType, #'ECPrivateKey'{privateKey = PrivKey,
 						    parameters = Param}) ->
     ECCurve = ec_curve_spec(Param),
-    crypto:sign(ecdsa, DigestType, DigestOrPlainText, [list_to_binary(PrivKey), ECCurve]);
+    crypto:sign(ecdsa, DigestType, DigestOrPlainText, [PrivKey, ECCurve]);
 
 %% Backwards compatible
 sign(Digest, none, #'DSAPrivateKey'{} = Key) ->
@@ -458,22 +458,12 @@ sign(Digest, none, #'DSAPrivateKey'{} = Key) ->
 	     | dsa_public_key() | ec_public_key()) -> boolean().
 %% Description: Verifies a digital signature.
 %%--------------------------------------------------------------------
-verify(DigestOrPlainText, DigestType, Signature,
-       #'RSAPublicKey'{modulus = Mod, publicExponent = Exp}) ->
-    crypto:verify(rsa, DigestType, DigestOrPlainText, Signature,
-		  [Exp, Mod]);
-
-verify(DigestOrPlaintext, DigestType, Signature, {#'ECPoint'{point = Point}, Param}) ->
-    ECCurve = ec_curve_spec(Param),
-    crypto:verify(ecdsa, DigestType, DigestOrPlaintext, Signature, [Point, ECCurve]);
-
-%% Backwards compatibility
-verify(Digest, none, Signature, {_,  #'Dss-Parms'{}} = Key ) ->
-    verify({digest,Digest}, sha, Signature, Key);
-
-verify(DigestOrPlainText, sha = DigestType, Signature, {Key,  #'Dss-Parms'{p = P, q = Q, g = G}})
-  when is_integer(Key), is_binary(Signature) ->
-    crypto:verify(dss, DigestType, DigestOrPlainText, Signature, [P, Q, G, Key]).
+verify(DigestOrPlainText, DigestType, Signature, Key) when is_binary(Signature) ->
+    do_verify(DigestOrPlainText, DigestType, Signature, Key);
+verify(_,_,_,_) -> 
+    %% If Signature is a bitstring and not a binary we know already at this
+    %% point that the signature is invalid.
+    false.
 
 %%--------------------------------------------------------------------
 -spec pkix_dist_point(der_encoded() | #'OTPCertificate'{}) -> 
@@ -530,7 +520,7 @@ pkix_sign(#'OTPTBSCertificate'{signature =
     Signature = sign(Msg, DigestType, Key),
     Cert = #'OTPCertificate'{tbsCertificate= TBSCert,
 			     signatureAlgorithm = SigAlg,
-			     signature = {0, Signature}
+			     signature = Signature
 			    },
     pkix_encode('OTPCertificate', Cert, otp).
 
@@ -753,6 +743,23 @@ ssh_encode(Entries, Type) when is_list(Entries),
 %%--------------------------------------------------------------------
 %%% Internal functions
 %%--------------------------------------------------------------------
+do_verify(DigestOrPlainText, DigestType, Signature,
+       #'RSAPublicKey'{modulus = Mod, publicExponent = Exp}) ->
+    crypto:verify(rsa, DigestType, DigestOrPlainText, Signature,
+		  [Exp, Mod]);
+
+do_verify(DigestOrPlaintext, DigestType, Signature, {#'ECPoint'{point = Point}, Param}) ->
+    ECCurve = ec_curve_spec(Param),
+    crypto:verify(ecdsa, DigestType, DigestOrPlaintext, Signature, [Point, ECCurve]);
+
+%% Backwards compatibility
+do_verify(Digest, none, Signature, {_,  #'Dss-Parms'{}} = Key ) ->
+    verify({digest,Digest}, sha, Signature, Key);
+
+do_verify(DigestOrPlainText, sha = DigestType, Signature, {Key,  #'Dss-Parms'{p = P, q = Q, g = G}})
+  when is_integer(Key), is_binary(Signature) ->
+    crypto:verify(dss, DigestType, DigestOrPlainText, Signature, [P, Q, G, Key]).
+
 do_pem_entry_encode(Asn1Type, Entity, CipherInfo, Password) ->
     Der = der_encode(Asn1Type, Entity),
     DecryptDer = pubkey_pem:cipher(Der, CipherInfo, Password),
@@ -985,14 +992,14 @@ ec_generate_key(Params) ->
 ec_curve_spec( #'ECParameters'{fieldID = FieldId, curve = PCurve, base = Base, order = Order, cofactor = CoFactor }) ->
     Field = {pubkey_cert_records:supportedCurvesTypes(FieldId#'FieldID'.fieldType),
 	     FieldId#'FieldID'.parameters},
-    Curve = {erlang:list_to_binary(PCurve#'Curve'.a), erlang:list_to_binary(PCurve#'Curve'.b), none},
-    {Field, Curve, erlang:list_to_binary(Base), Order, CoFactor};
+    Curve = {PCurve#'Curve'.a, PCurve#'Curve'.b, none},
+    {Field, Curve, Base, Order, CoFactor};
 ec_curve_spec({namedCurve, OID}) ->
     pubkey_cert_records:namedCurves(OID).
 
 ec_key({PubKey, PrivateKey}, Params) ->
     #'ECPrivateKey'{version = 1,
-		    privateKey = binary_to_list(PrivateKey),
+		    privateKey = PrivateKey,
 		    parameters = Params,
-		    publicKey = {0, PubKey}}.
+		    publicKey = PubKey}.
 
diff --git a/lib/public_key/test/erl_make_certs.erl b/lib/public_key/test/erl_make_certs.erl
index 5926794ca8..668924c03e 100644
--- a/lib/public_key/test/erl_make_certs.erl
+++ b/lib/public_key/test/erl_make_certs.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2011-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2011-2014. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -114,7 +114,7 @@ verify_signature(DerEncodedCert, DerKey, _KeyParams) ->
 	#'DSAPrivateKey'{p=P, q=Q, g=G, y=Y} ->
 	    public_key:pkix_verify(DerEncodedCert, {Y, #'Dss-Parms'{p=P, q=Q, g=G}});
 	#'ECPrivateKey'{version = _Version, privateKey = _PrivKey,
-			parameters = Params, publicKey = {0, PubKey}} ->
+			parameters = Params, publicKey = PubKey} ->
 	    public_key:pkix_verify(DerEncodedCert, {#'ECPoint'{point = PubKey}, Params})
     end.
 
@@ -204,7 +204,7 @@ issuer_der(Issuer) ->
     Subject.
 
 subject(undefined, IsRootCA) ->
-    User = if IsRootCA -> "RootCA"; true -> user() end,
+    User = if IsRootCA -> "RootCA"; true -> os:getenv("USER", "test_user") end,
     Opts = [{email, User ++ "@erlang.org"},
 	    {name, User},
 	    {city, "Stockholm"},
@@ -215,14 +215,6 @@ subject(undefined, IsRootCA) ->
 subject(Opts, _) ->
     subject(Opts).
 
-user() ->
-    case os:getenv("USER") of
-	false ->
-	    "test_user";
-	User ->
-	    User
-    end.
-
 subject(SubjectOpts) when is_list(SubjectOpts) ->
     Encode = fun(Opt) ->
 		     {Type,Value} = subject_enc(Opt),
@@ -267,9 +259,8 @@ default_extensions(Exts) ->
     Filter = fun({Key, _}, D) -> lists:keydelete(Key, 1, D) end,
     Exts ++ lists:foldl(Filter, Def, Exts).
        	
-
-
 extension({_, undefined}) -> [];
+
 extension({basic_constraints, Data}) ->
     case Data of
 	default ->
@@ -286,9 +277,11 @@ extension({basic_constraints, Data}) ->
 	    #'Extension'{extnID = ?'id-ce-basicConstraints',
 			 extnValue = Data}
     end;
+
 extension({key_usage, default}) ->
     #'Extension'{extnID = ?'id-ce-keyUsage',
 		 extnValue = [keyCertSign], critical = true};
+
 extension({Id, Data, Critical}) ->
     #'Extension'{extnID = Id, extnValue = Data, critical = Critical}.
 
@@ -305,7 +298,7 @@ publickey(#'DSAPrivateKey'{p=P, q=Q, g=G, y=Y}) ->
 publickey(#'ECPrivateKey'{version = _Version,
 			  privateKey = _PrivKey,
 			  parameters = Params,
-			  publicKey = {0, PubKey}}) ->
+			  publicKey = PubKey}) ->
     Algo = #'PublicKeyAlgorithm'{algorithm= ?'id-ecPublicKey', parameters=Params},
     #'OTPSubjectPublicKeyInfo'{algorithm = Algo,
 			       subjectPublicKey = #'ECPoint'{point = PubKey}}.
@@ -330,14 +323,14 @@ sign_algorithm(#'RSAPrivateKey'{}, Opts) ->
     {Type, 'NULL'};
 sign_algorithm(#'DSAPrivateKey'{p=P, q=Q, g=G}, _Opts) ->
     {?'id-dsa-with-sha1', {params,#'Dss-Parms'{p=P, q=Q, g=G}}};
-sign_algorithm(#'ECPrivateKey'{}, Opts) ->
+sign_algorithm(#'ECPrivateKey'{parameters = Parms}, Opts) ->
     Type = case proplists:get_value(digest, Opts, sha1) of
 	       sha1 ->   ?'ecdsa-with-SHA1';
 	       sha512 -> ?'ecdsa-with-SHA512';
 	       sha384 -> ?'ecdsa-with-SHA384';
 	       sha256 -> ?'ecdsa-with-SHA256'
 	   end,
-    {Type, 'NULL'}.
+    {Type, Parms}.
 
 make_key(rsa, _Opts) ->
     %% (OBS: for testing only)
@@ -414,9 +407,9 @@ gen_ec2(CurveId) ->
      {PubKey, PrivKey} = crypto:generate_key(ecdh, CurveId),
 
     #'ECPrivateKey'{version = 1,
-		    privateKey = binary_to_list(PrivKey),
+		    privateKey = PrivKey,
 		    parameters = {namedCurve, pubkey_cert_records:namedCurves(CurveId)},
-		    publicKey = {0, PubKey}}.
+		    publicKey = PubKey}.
 
 %% See fips_186-3.pdf
 dsa_search(T, P0, Q, Iter) when Iter > 0 ->
@@ -485,5 +478,3 @@ der_to_pem(File, Entries) ->
     PemBin = public_key:pem_encode(Entries),
     file:write_file(File, PemBin).
 
-
-
diff --git a/lib/public_key/vsn.mk b/lib/public_key/vsn.mk
index 16794660a5..7f752529f0 100644
--- a/lib/public_key/vsn.mk
+++ b/lib/public_key/vsn.mk
@@ -1 +1 @@
-PUBLIC_KEY_VSN = 0.23
+PUBLIC_KEY_VSN = 1.0
diff --git a/lib/reltool/src/reltool.app.src b/lib/reltool/src/reltool.app.src
index 65fcf4aae5..579d2c0d1b 100644
--- a/lib/reltool/src/reltool.app.src
+++ b/lib/reltool/src/reltool.app.src
@@ -36,5 +36,5 @@
   {applications, [stdlib, kernel]},
   {env, []},
   {runtime_dependencies, ["wx-1.2","tools-2.6.14","stdlib-2.0","sasl-2.4",
-			  "kernel-3.0","erts-6.0"]}
+			  "kernel-3.0","erts-7.0"]}
  ]}.
diff --git a/lib/reltool/src/reltool_fgraph_win.erl b/lib/reltool/src/reltool_fgraph_win.erl
index 66bc2b5ab3..d9e6f6d427 100644
--- a/lib/reltool/src/reltool_fgraph_win.erl
+++ b/lib/reltool/src/reltool_fgraph_win.erl
@@ -252,10 +252,10 @@ ticker_init(Pid) ->
 ticker_loop(Pid, Time) ->
     receive after Time ->
         Pid ! {self(), redraw},
-        T0 = now(),
+        T0 = erlang:monotonic_time(),
         receive {Pid, ok} -> ok end,
-        T1 = now(),
-        D = timer:now_diff(T1, T0)/1000,
+        T1 = erlang:monotonic_time(),
+        D = erlang:convert_time_unit(T1-T0, native, milli_seconds),
         case round(40 - D) of
             Ms when Ms < 0 ->
                 %io:format("ticker: wait is   0 ms [fg ~7s ms] [fps ~7s]~n",
diff --git a/lib/reltool/src/reltool_utils.erl b/lib/reltool/src/reltool_utils.erl
index 5a3f34506d..e6b1901316 100644
--- a/lib/reltool/src/reltool_utils.erl
+++ b/lib/reltool/src/reltool_utils.erl
@@ -54,12 +54,7 @@ root_dir() ->
     code:root_dir().
 
 erl_libs() ->
-    case os:getenv("ERL_LIBS") of
-	false ->
-	    [];
-	LibStr ->
-	    string:tokens(LibStr, ":;")
-    end.
+    string:tokens(os:getenv("ERL_LIBS", ""), ":;").
 
 lib_dirs(Dir) ->
     case erl_prim_loader:list_dir(Dir) of
diff --git a/lib/reltool/test/reltool_server_SUITE.erl b/lib/reltool/test/reltool_server_SUITE.erl
index 347e80ed7c..f140d6c55f 100644
--- a/lib/reltool/test/reltool_server_SUITE.erl
+++ b/lib/reltool/test/reltool_server_SUITE.erl
@@ -1205,14 +1205,9 @@ create_slim(Config) ->
 
     RootDir = code:root_dir(),
     Erl = filename:join([RootDir, "bin", "erl"]),
-    EscapedQuote =
-	case os:type() of
-	    {win32,_} -> "\\\"";
-	    _         -> "\""
-	end,
     Args = ["-boot_var", "RELTOOL_EXT_LIB", TargetLibDir,
 	    "-boot", filename:join(TargetRelVsnDir,RelName),
-	    "-sasl", "releases_dir", EscapedQuote++TargetRelDir++EscapedQuote],
+	    "-sasl", "releases_dir", "\""++TargetRelDir++"\""],
     {ok, Node} = ?msym({ok, _}, start_node(?NODE_NAME, Erl, Args)),
     ?msym(RootDir, rpc:call(Node, code, root_dir, [])),
     wait_for_app(Node,sasl,50),
@@ -2518,10 +2513,7 @@ undefined_regexp(_Config) ->
 %% Library functions
 
 erl_libs() ->
-    case os:getenv("ERL_LIBS") of
-        false  -> [];
-        LibStr -> string:tokens(LibStr, ":;")
-    end.
+    string:tokens(os:getenv("ERL_LIBS", ""), ":;").
 
 datadir(Config) ->
     %% Removes the trailing slash...
diff --git a/lib/runtime_tools/src/observer_backend.erl b/lib/runtime_tools/src/observer_backend.erl
index fea0854042..fe814ceda4 100644
--- a/lib/runtime_tools/src/observer_backend.erl
+++ b/lib/runtime_tools/src/observer_backend.erl
@@ -248,7 +248,7 @@ etop_collect(Collector) ->
     SchedulerWallTime = erlang:statistics(scheduler_wall_time),
     ProcInfo = etop_collect(processes(), []),
 
-    Collector ! {self(),#etop_info{now = now(),
+    Collector ! {self(),#etop_info{now = erlang:timestamp(),
 				   n_procs = length(ProcInfo),
 				   run_queue = erlang:statistics(run_queue),
 				   runtime = SchedulerWallTime,
diff --git a/lib/runtime_tools/src/percept_profile.erl b/lib/runtime_tools/src/percept_profile.erl
index cdc7a0fca1..dfadb21aa8 100644
--- a/lib/runtime_tools/src/percept_profile.erl
+++ b/lib/runtime_tools/src/percept_profile.erl
@@ -119,7 +119,7 @@ stop() ->
     	undefined -> 
 	    {error, not_started};
 	Port ->
-	    erlang:port_command(Port, erlang:term_to_binary({profile_stop, erlang:now()})),
+	    erlang:port_command(Port, erlang:term_to_binary({profile_stop, erlang:timestamp()})),
 	    %% trace delivered?
 	    erlang:port_close(Port),
 	    ok
@@ -139,7 +139,7 @@ profile_to_file(Filename, Opts) ->
 	    erlang:system_flag(multi_scheduling, block),
 	    Port = (dbg:trace_port(file, Filename))(),
 	    % Send start time
-	    erlang:port_command(Port, erlang:term_to_binary({profile_start, erlang:now()})),
+	    erlang:port_command(Port, erlang:term_to_binary({profile_start, erlang:timestamp()})),
 	    erlang:system_flag(multi_scheduling, unblock),
 		
 	    %% Register Port
diff --git a/lib/runtime_tools/src/runtime_tools.app.src b/lib/runtime_tools/src/runtime_tools.app.src
index 0a70802c08..32ea9e564b 100644
--- a/lib/runtime_tools/src/runtime_tools.app.src
+++ b/lib/runtime_tools/src/runtime_tools.app.src
@@ -27,6 +27,6 @@
     {env,          []},
     {mod,          {runtime_tools, []}},
     {runtime_dependencies, ["stdlib-2.0","mnesia-4.12","kernel-3.0",
-			    "erts-6.0"]}]}.
+			    "erts-7.0"]}]}.
 
 
diff --git a/lib/runtime_tools/src/system_information.erl b/lib/runtime_tools/src/system_information.erl
index 04cc33e1ad..0796e96ffc 100644
--- a/lib/runtime_tools/src/system_information.erl
+++ b/lib/runtime_tools/src/system_information.erl
@@ -577,10 +577,7 @@ get_beam_name() ->
 	false -> "";
 	true -> ".smp"
     end,
-    Beam = case os:getenv("EMU") of
-	false -> "beam";
-	Value -> Value
-    end,
+    Beam = os:getenv("EMU", "beam"),
     Beam ++ Type ++ Flavor.
 
 %% Check runtime dependencies...
diff --git a/lib/runtime_tools/test/erts_alloc_config_SUITE.erl b/lib/runtime_tools/test/erts_alloc_config_SUITE.erl
index 8ea04e1767..9be1565a02 100644
--- a/lib/runtime_tools/test/erts_alloc_config_SUITE.erl
+++ b/lib/runtime_tools/test/erts_alloc_config_SUITE.erl
@@ -79,12 +79,7 @@ basic(Config) when is_list(Config) ->
     SbctMod = " +MBsbct 1024 +MHsbct 4096",
 
     %% Make sure we have enabled allocators
-    ZFlgs = case os:getenv("ERL_ZFLAGS") of
-		FlgString when is_list(FlgString) ->
-		    FlgString;
-		_ ->
-		    ""
-	    end ++ " +Mea max +Mea config",
+    ZFlgs = os:getenv("ERL_ZFLAGS", "") ++ " +Mea max +Mea config",
 
     ?line os:putenv("ERL_ZFLAGS", ZFlgs ++ SbctMod),
 
diff --git a/lib/sasl/doc/src/appup.xml b/lib/sasl/doc/src/appup.xml
index 95f315d269..f0f41b0c7e 100644
--- a/lib/sasl/doc/src/appup.xml
+++ b/lib/sasl/doc/src/appup.xml
@@ -180,15 +180,28 @@
       <c>Mod</c> when upgrading, and vice versa when downgrading.</p>
     <pre>
 {add_module, Mod}
+{add_module, Mod, DepMods}
   Mod = atom()
+  DepMods = [Mod]
     </pre>
     <p>Loads a new module <c>Mod</c>.</p>
+    <p><c>DepMods</c> defaults to [] and defines which other modules
+      <c>Mod</c> is dependent on. In <c>relup</c>, instructions
+      related to these modules will come before the instruction for
+      loading <c>Mod</c> when upgrading, and vice versa when
+      downgrading.</p>
     <pre>
 {delete_module, Mod}
+{delete_module, Mod, DepMods}
   Mod = atom()
     </pre>
     <p>Deletes a module <c>Mod</c> using the low-level instructions
       <c>remove</c> and <c>purge</c>.</p>
+    <p><c>DepMods</c> defaults to [] and defines which other modules
+      <c>Mod</c> is dependent on. In <c>relup</c>, instructions
+      related to these modules will come before the instruction for
+      removing <c>Mod</c> when upgrading, and vice versa when
+      downgrading.</p>
     <pre>
 {add_application, Application}
 {add_application, Application, Type}
diff --git a/lib/sasl/doc/src/sasl_app.xml b/lib/sasl/doc/src/sasl_app.xml
index 9c3c80bd13..572e550061 100644
--- a/lib/sasl/doc/src/sasl_app.xml
+++ b/lib/sasl/doc/src/sasl_app.xml
@@ -92,6 +92,13 @@
           <item>Installs <c>sasl_report_file_h</c> in the error logger.
            This makes all reports go to the file <c>FileName</c>.
           <c>FileName</c> is a string.</item>
+          <tag><c>{file,FileName,Modes}</c></tag>
+          <item>Same as <c>{file,FileName}</c> except that the <c>Modes</c>
+           allows to specify the modes used for opening the <c>FileName</c>
+           given to the <seealso marker="kernel:file#open/2">file:open/2</seealso>
+           call. When not specified, the <c>Modes</c> defaults to <c>[write]</c>.
+           Use <c>[append]</c> for having the <c>FileName</c> open in append mode.
+          <c>FileName</c> is a string.</item>
           <tag><c>false</c></tag>
           <item>
             <p>No SASL error logger handler is installed.</p>
diff --git a/lib/sasl/src/sasl.appup.src b/lib/sasl/src/sasl.appup.src
index e789853eea..af04d007ac 100644
--- a/lib/sasl/src/sasl.appup.src
+++ b/lib/sasl/src/sasl.appup.src
@@ -17,9 +17,7 @@
 %% %CopyrightEnd%
 {"%VSN%",
  %% Up from - max one major revision back
- [{<<"2\\.4(\\.[0-9]+)*">>,[restart_new_emulator]},         %% R17
-  {<<"2\\.3(\\.[0-9]+)*">>,[restart_new_emulator]}],        %% R16
+ [{<<"2\\.4(\\.[0-9]+)*">>,[restart_new_emulator]}], % OTP-17
  %% Down to - max one major revision back
- [{<<"2\\.4(\\.[0-9]+)*">>,[restart_new_emulator]},         %% R17
-  {<<"2\\.3(\\.[0-9]+)*">>,[restart_new_emulator]}]         %% R16
+ [{<<"2\\.4(\\.[0-9]+)*">>,[restart_new_emulator]}]  % OTP-17
 }.
diff --git a/lib/sasl/src/sasl.erl b/lib/sasl/src/sasl.erl
index fdea6da13e..4a220f0511 100644
--- a/lib/sasl/src/sasl.erl
+++ b/lib/sasl/src/sasl.erl
@@ -55,7 +55,9 @@ get_sasl_error_logger() ->
     case application:get_env(sasl, sasl_error_logger) of
 	{ok, false} -> undefined;
 	{ok, tty} -> tty;
-	{ok, {file, File}} when is_list(File) -> {file, File};
+	{ok, {file, File}} when is_list(File) -> {file, File, [write]};
+	{ok, {file, File, Modes}} when is_list(File), is_list(Modes) ->
+        {file, File, Modes};
 	{ok, Bad} -> exit({bad_config, {sasl, {sasl_error_logger, Bad}}});
 	_ -> undefined
     end.
@@ -125,9 +127,9 @@ delete_sasl_error_logger(Type) ->
     error_logger:delete_report_handler(mod(Type)).
 
 mod(tty) -> sasl_report_tty_h;
-mod({file, _File}) -> sasl_report_file_h.
+mod({file, _File, _Modes}) -> sasl_report_file_h.
 
-args({file, File}, Type) -> {File, type(Type)};
+args({file, File, Modes}, Type) -> {File, Modes, type(Type)};
 args(_, Type) -> type(Type).
 
 type(error) -> error;
diff --git a/lib/sasl/src/sasl_report_file_h.erl b/lib/sasl/src/sasl_report_file_h.erl
index f42b4b5ff2..a5bd0ac055 100644
--- a/lib/sasl/src/sasl_report_file_h.erl
+++ b/lib/sasl/src/sasl_report_file_h.erl
@@ -28,9 +28,9 @@
 	 handle_event/2, handle_call/2, handle_info/2,
 	 terminate/2]).
 
-init({File, Type}) ->
+init({File, Modes, Type}) when is_list(Modes) ->
     process_flag(trap_exit, true),
-    case file:open(File, [write]) of
+    case file:open(File, Modes) of
 	{ok,Fd} ->
 	    {ok, {Fd, File, Type}};
 	What ->
diff --git a/lib/sasl/src/systools_rc.erl b/lib/sasl/src/systools_rc.erl
index 76f753c3d0..11e097996c 100644
--- a/lib/sasl/src/systools_rc.erl
+++ b/lib/sasl/src/systools_rc.erl
@@ -32,7 +32,6 @@
 %% {load_module, Mod, PrePurge, PostPurge, [Mod]}
 %% {add_module, Mod}
 %% {add_module, Mod, [Mod]}
-%% {remove_module, Mod, PrePurge, PostPurge, [Mod]}
 %% {restart_application, Appl}
 %% {add_application, Appl, Type}
 %% {remove_application, Appl}
@@ -59,7 +58,7 @@
 
 %% High-level instructions that contain dependencies
 %%
--define(DEP_INSTRS, [update, load_module, add_module, remove_module]).
+-define(DEP_INSTRS, [update, load_module, add_module, delete_module]).
 
 %%-----------------------------------------------------------------
 %% translate_scripts(Scripts, Appls, PreAppls) -> Res
@@ -107,9 +106,6 @@ expand_script([I|Script]) ->
 	     {update, Mod, Change, Mods} when Change==soft,
 					      is_list(Mods) ->
 		 {update, Mod, Change, brutal_purge,brutal_purge, Mods};
-	     {delete_module, Mod} ->
-		 [{remove, {Mod, brutal_purge, brutal_purge}},
-		  {purge, [Mod]}];
 	     {add_application, Application} ->
 		 {add_application, Application, permanent};
 	     _ ->
@@ -301,6 +297,8 @@ normalize_instrs(Script) ->
 		       PostPurge, Mods};
 		 ({add_module, Mod}) ->
 		      {add_module, Mod, []};
+		 ({delete_module, Mod}) ->
+		      {delete_module, Mod, []};
 		 (I) ->
 		      I
 	      end, Script).
@@ -412,7 +410,7 @@ translate_add_module_instrs(Before, After) ->
 %%-----------------------------------------------------------------
 
 %%-----------------------------------------------------------------
-%% Translates update, load_module and remove_module, and reorder the
+%% Translates update, load_module and delete_module, and reorder the
 %% instructions according to dependencies. Leaves other instructions
 %% unchanged.
 %%-----------------------------------------------------------------
@@ -538,7 +536,7 @@ get_dependent_instructions(G, WCs, Mod) ->
 %% Instructions are in order of dependency.
 %% Appls = [#application]
 %%
-%% Instructions translated are: update, load_module, and remove_module 
+%% Instructions translated are: update, load_module, and delete_module
 %%
 %% Before =	[{load_object_code, ...}]
 %% After = 	[{suspend, ...}] ++ CodeInstrs ++ [{resume, ...}]
@@ -576,17 +574,19 @@ translate_dep_to_low(Mode, Instructions, Appls) ->
 				end, RevUpdateMods)}]
 	end,
 
-    LoadRemoveInstrs = 
+    LoadRemoveInstrs0 =
 	filtermap(fun({update, Mod, _, _, _, PreP, PostP, _}) ->
 			  {true, {load, {Mod, PreP, PostP}}};
 		     ({load_module, Mod, PreP, PostP, _}) ->
 			  {true, {load, {Mod, PreP, PostP}}};
-		     ({remove_module, Mod, PreP, PostP, _}) ->
-			  {true, {remove, {Mod, PreP, PostP}}};
+		     ({delete_module, Mod, _}) ->
+			  {true,[{remove, {Mod, brutal_purge, brutal_purge}},
+				 {purge, [Mod]}]};
 		     (_) -> false
 		  end,
 		  Instructions),
-    RevLoadRemoveInstrs = lists:reverse(LoadRemoveInstrs),
+    LoadRemoveInstrs = lists:flatten(LoadRemoveInstrs0),
+    RevLoadRemoveInstrs = lists:flatten(lists:reverse(LoadRemoveInstrs0)),
 
     %% The order of loading object code is unimportant. The order
     %% chosen is the order of dependency.
@@ -781,10 +781,10 @@ check_op({add_module, Mod, Mods}) ->
     check_mod(Mod),
     check_list(Mods),
     lists:foreach(fun(M) -> check_mod(M) end, Mods);
-check_op({remove_module, Mod, PrePurge, PostPurge, Mods}) ->
+check_op({delete_module, Mod}) ->
+    check_mod(Mod);
+check_op({delete_module, Mod, Mods}) ->
     check_mod(Mod),
-    check_purge(PrePurge),
-    check_purge(PostPurge),
     check_list(Mods),
     lists:foreach(fun(M) -> check_mod(M) end, Mods);
 check_op({remove_application, Appl}) ->
diff --git a/lib/sasl/test/release_handler_SUITE_data/lib/README b/lib/sasl/test/release_handler_SUITE_data/lib/README
index ffb8c5120b..5d17950b0b 100644
--- a/lib/sasl/test/release_handler_SUITE_data/lib/README
+++ b/lib/sasl/test/release_handler_SUITE_data/lib/README
@@ -21,7 +21,7 @@ start version, includes b_lib and b_server
 
 b-2.0:
 can be upgraded to from b-1.0.
-Removes b_lib (soft_purge) and updates b_server (brutal_purge)
+Removes b_lib (brutal_purge) and updates b_server (soft_purge)
 * The diff in purge method is important for test "check_and_purge", in
   order to check that the purge option to check_install_release works
   for both methods.
diff --git a/lib/sasl/test/release_handler_SUITE_data/lib/b-2.0/ebin/b.appup b/lib/sasl/test/release_handler_SUITE_data/lib/b-2.0/ebin/b.appup
index 001255a88c..9df590e63f 100644
--- a/lib/sasl/test/release_handler_SUITE_data/lib/b-2.0/ebin/b.appup
+++ b/lib/sasl/test/release_handler_SUITE_data/lib/b-2.0/ebin/b.appup
@@ -1,6 +1,6 @@
 %% -*- erlang -*-
 {"2.0",
- [{"1.0",[{remove_module,b_lib,soft_purge,soft_purge,[]},
-	  {update,b_server,{advanced,[]}}]}],
+ [{"1.0",[{delete_module,b_lib},
+	  {update,b_server,{advanced,[]},soft_purge,soft_purge,[]}]}],
  [{"1.0",[{add_module,b_lib},
-	  {update,b_server,{advanced,[]}}]}]}.
+	  {update,b_server,{advanced,[]},soft_purge,soft_purge,[]}]}]}.
diff --git a/lib/sasl/test/sasl_SUITE.erl b/lib/sasl/test/sasl_SUITE.erl
index d7b99d506e..d9ab9e551c 100644
--- a/lib/sasl/test/sasl_SUITE.erl
+++ b/lib/sasl/test/sasl_SUITE.erl
@@ -26,10 +26,11 @@
 %% Test cases must be exported.
 -export([app_test/1,
 	 appup_test/1,
-	 log_mf_h_env/1]).
+	 log_mf_h_env/1,
+	 log_file/1]).
 
 all() -> 
-    [log_mf_h_env, app_test, appup_test].
+    [log_mf_h_env, log_file, app_test, appup_test].
 
 groups() -> 
     [].
@@ -151,10 +152,9 @@ check_appup([],_,_) ->
 log_mf_h_env(Config) ->
     PrivDir = ?config(priv_dir,Config),
     LogDir = filename:join(PrivDir,sasl_SUITE_log_dir),
-    ok = file:make_dir(LogDir),
+    ok = filelib:ensure_dir(LogDir),
     application:stop(sasl),
-    SaslEnv = application:get_all_env(sasl),
-    lists:foreach(fun({E,_V}) -> application:unset_env(sasl,E) end, SaslEnv),
+    clear_env(sasl),
 
     ok = application:set_env(sasl,error_logger_mf_dir,LogDir),
     match_error(missing_config,application:start(sasl)),
@@ -178,6 +178,23 @@ log_mf_h_env(Config) ->
     ok = application:set_env(sasl,error_logger_mf_dir,LogDir),
     ok = application:start(sasl).
 
+log_file(Config) ->
+    PrivDir = ?config(priv_dir,Config),
+    LogDir  = filename:join(PrivDir,sasl_SUITE_log_dir),
+    ok      = filelib:ensure_dir(LogDir),
+    File    = filename:join(LogDir, "file.log"),
+    application:stop(sasl),
+    clear_env(sasl),
+
+    ok = application:set_env(sasl,sasl_error_logger,{file, File}, [{persistent, true}]),
+    ok = application:start(sasl),
+    application:stop(sasl),
+    ok = application:set_env(sasl,sasl_error_logger,{file, File, [append]}, [{persistent, true}]),
+    ok = application:start(sasl),
+    application:stop(sasl),
+    ok = application:set_env(sasl,sasl_error_logger, tty, [{persistent, false}]),
+    ok = application:start(sasl).
+
 
 %%-----------------------------------------------------------------
 %% Internal
@@ -185,3 +202,7 @@ match_error(Expected,{error,{bad_return,{_,{'EXIT',{Expected,{sasl,_}}}}}}) ->
     ok;
 match_error(Expected,Actual) ->
     ?t:fail({unexpected_return,Expected,Actual}).
+
+clear_env(App) ->
+    [application:unset_env(App,Opt) || {Opt,_} <- application:get_all_env(App)],
+    ok.
diff --git a/lib/sasl/test/systools_rc_SUITE.erl b/lib/sasl/test/systools_rc_SUITE.erl
index 5efab7c028..1afef986d2 100644
--- a/lib/sasl/test/systools_rc_SUITE.erl
+++ b/lib/sasl/test/systools_rc_SUITE.erl
@@ -22,14 +22,16 @@
 -include_lib("sasl/src/systools.hrl").
 -export([all/0,groups/0,init_per_group/2,end_per_group/2, 
 	 syntax_check/1, translate/1, translate_app/1,
-	 translate_emulator_restarts/1]).
+	 translate_emulator_restarts/1,
+	 translate_add_delete_module/1]).
 
 %%-----------------------------------------------------------------
 %% erl -compile systools_rc_SUITE @i ../src/ @i ../../test_server/include/
 %% c(systools_rc_SUITE, [{i, "../src"}, {i, "../../test_server/include"}]).
 %%-----------------------------------------------------------------
 all() -> 
-    [syntax_check, translate, translate_app, translate_emulator_restarts].
+    [syntax_check, translate, translate_app, translate_emulator_restarts,
+     translate_add_delete_module].
 
 groups() -> 
     [].
@@ -707,3 +709,59 @@ translate_emulator_restarts(_Config) ->
      restart_emulator] = X6,
 
     ok.
+
+translate_add_delete_module(_Config) ->
+    PreApps =
+	[#application{name = test,
+		      description = "TEST",
+		      vsn = "0.1",
+		      modules = [foo,bar,baz,old_mod],
+		      regs = [],
+		      mod = {sasl, []}}],
+    Apps =
+	[#application{name = test,
+		      description = "TEST",
+		      vsn = "1.0",
+		      modules = [foo,bar,baz,new_mod],
+		      regs = [],
+		      mod = {sasl, []}}],
+    S1 = [
+	  {delete_module, old_mod},
+	  {add_module, new_mod},
+	  {load_module, foo}
+	 ],
+    {ok, X1} = systools_rc:translate_scripts([S1], Apps, PreApps),
+    [{load_object_code,{test,"1.0",[new_mod,foo]}},
+     point_of_no_return,
+     {remove,{old_mod,brutal_purge,brutal_purge}},
+     {purge,[old_mod]},
+     {load,{new_mod,brutal_purge,brutal_purge}},
+     {load,{foo,brutal_purge,brutal_purge}}] = X1,
+
+    S2 = [
+	  {delete_module, old_mod},
+	  {add_module, new_mod, [foo]},
+	  {load_module, foo}
+	 ],
+    {ok, X2} = systools_rc:translate_scripts([S2], Apps, PreApps),
+    [{load_object_code,{test,"1.0",[new_mod,foo]}},
+     point_of_no_return,
+     {remove,{old_mod,brutal_purge,brutal_purge}},
+     {purge,[old_mod]},
+     {load,{foo,brutal_purge,brutal_purge}},
+     {load,{new_mod,brutal_purge,brutal_purge}}] = X2,
+
+    S3 = [
+	  {delete_module, old_mod, [new_mod]},
+	  {add_module, new_mod, [foo]},
+	  {load_module, foo}
+	 ],
+    {ok, X3} = systools_rc:translate_scripts([S3], Apps, PreApps),
+    [{load_object_code,{test,"1.0",[new_mod,foo]}},
+     point_of_no_return,
+     {load,{foo,brutal_purge,brutal_purge}},
+     {load,{new_mod,brutal_purge,brutal_purge}},
+     {remove,{old_mod,brutal_purge,brutal_purge}},
+     {purge,[old_mod]}] = X3,
+
+    ok.
diff --git a/lib/sasl/test/test_lib.hrl b/lib/sasl/test/test_lib.hrl
index c8a4e92f24..b16c4ac34c 100644
--- a/lib/sasl/test/test_lib.hrl
+++ b/lib/sasl/test/test_lib.hrl
@@ -1,3 +1,3 @@
 -define(ertsvsn,"4.4").
--define(kernelvsn,"2.16.4").
--define(stdlibvsn,"1.19.4").
+-define(kernelvsn,"3.0").
+-define(stdlibvsn,"2.0").
diff --git a/lib/sasl/vsn.mk b/lib/sasl/vsn.mk
index 4259a2d76c..8d1a043410 100644
--- a/lib/sasl/vsn.mk
+++ b/lib/sasl/vsn.mk
@@ -1 +1 @@
-SASL_VSN = 2.4.1
+SASL_VSN = 2.4.2
diff --git a/lib/snmp/doc/src/snmp_app.xml b/lib/snmp/doc/src/snmp_app.xml
index 86f0981988..e36908a5b9 100644
--- a/lib/snmp/doc/src/snmp_app.xml
+++ b/lib/snmp/doc/src/snmp_app.xml
@@ -587,7 +587,7 @@
       <marker id="manager_server_timeout"></marker>
       <tag><c><![CDATA[server_timeout() = integer() <optional>]]></c></tag>
       <item>
-        <p>Asynchroneous request cleanup time. For every requests, 
+        <p>Asynchronous request cleanup time. For every requests,
           some info is stored internally, in order to be able to 
           deliver the reply (when it arrives) to the proper destination.
           If the reply arrives, this info will be deleted. But if
diff --git a/lib/snmp/doc/src/snmp_config.xml b/lib/snmp/doc/src/snmp_config.xml
index 0ec8bb91cf..d1ee6545dd 100644
--- a/lib/snmp/doc/src/snmp_config.xml
+++ b/lib/snmp/doc/src/snmp_config.xml
@@ -616,7 +616,7 @@ in so far as it will be converted to the new format if found.
       <marker id="manager_server_timeout"></marker>
       <tag><c><![CDATA[server_timeout() = integer() <optional>]]></c></tag>
       <item>
-        <p>Asynchroneous request cleanup time. For every requests, 
+        <p>Asynchronous request cleanup time. For every requests,
           some info is stored internally, in order to be able to 
           deliver the reply (when it arrives) to the proper destination.
           If the reply arrives, this info will be deleted. But if
diff --git a/lib/snmp/src/agent/snmp_shadow_table.erl b/lib/snmp/src/agent/snmp_shadow_table.erl
index 34543d542b..c4704e201b 100644
--- a/lib/snmp/src/agent/snmp_shadow_table.erl
+++ b/lib/snmp/src/agent/snmp_shadow_table.erl
@@ -1,7 +1,7 @@
 %% 
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1996-2009. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -76,7 +76,7 @@ delete_time_stamp_table() ->
     end.
 
 update(Name, UpdateFunc, Interval) ->
-    CurrentTime = get_time(),
+    CurrentTime = snmp_misc:now(ms),
     case mnesia:dirty_read({time_stamp, Name}) of
 	[#time_stamp{data = Expire}] when CurrentTime =< Expire -> ok;
 	_ ->
@@ -117,9 +117,6 @@ table_func(Op, RowIndex, Cols,
     update(Name, UpdateFunc, Interval),
     snmp_generic:table_func(Op, RowIndex, Cols, {Name, mnesia}).
 
-get_time() ->
-    {M,S,U} = erlang:now(),
-    1000000000 * M + 1000 * S + (U div 1000).
 
 %%-----------------------------------------------------------------
 %% Urrk.
@@ -183,5 +180,3 @@ delete_table(Tab) ->
 
 error_msg(F, A) ->
     ?snmpa_error(F, A).
-
-
diff --git a/lib/snmp/src/agent/snmp_standard_mib.erl b/lib/snmp/src/agent/snmp_standard_mib.erl
index aace3fd413..53f733ae4e 100644
--- a/lib/snmp/src/agent/snmp_standard_mib.erl
+++ b/lib/snmp/src/agent/snmp_standard_mib.erl
@@ -1,7 +1,7 @@
 %% 
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1996-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -546,8 +546,9 @@ dummy(_Op) -> ok.
 %%-----------------------------------------------------------------
 snmp_set_serial_no(new) ->
     snmp_generic:variable_func(new, {snmpSetSerialNo, volatile}),
-    {A1,A2,A3} = erlang:now(),
-    random:seed(A1,A2,A3),
+    random:seed(erlang:phash2([node()]),
+                erlang:monotonic_time(),
+                erlang:unique_integer()),
     Val = random:uniform(2147483648) - 1,
     snmp_generic:variable_func(set, Val, {snmpSetSerialNo, volatile});
 
diff --git a/lib/snmp/src/agent/snmp_target_mib.erl b/lib/snmp/src/agent/snmp_target_mib.erl
index ef9503cda8..f66c54849f 100644
--- a/lib/snmp/src/agent/snmp_target_mib.erl
+++ b/lib/snmp/src/agent/snmp_target_mib.erl
@@ -1,7 +1,7 @@
 %% 
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1998-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1998-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -346,13 +346,6 @@ check_target_params(X) ->
     error({invalid_target_params, X}).
 
 
-
-%% maybe_create_table(Name) ->
-%%     case snmpa_local_db:table_exists(db(Name)) of
-%% 	true -> ok;
-%% 	_ -> snmpa_local_db:table_create(db(Name))
-%%     end.
-
 init_tabs(Addrs, Params) ->
     ?vdebug("create target address table",[]),
     AddrDB = db(snmpTargetAddrTable),
@@ -679,8 +672,9 @@ snmpTargetSpinLock(print) ->
     
 snmpTargetSpinLock(new) ->
     snmp_generic:variable_func(new, {snmpTargetSpinLock, volatile}),
-    {A1,A2,A3} = erlang:now(),
-    random:seed(A1,A2,A3),
+    random:seed(erlang:phash2([node()]),
+                erlang:monotonic_time(),
+                erlang:unique_integer()),
     Val = random:uniform(2147483648) - 1,
     snmp_generic:variable_func(set, Val, {snmpTargetSpinLock, volatile});
 
@@ -1080,5 +1074,3 @@ error(Reason) ->
 
 config_err(F, A) ->
     snmpa_error:config_err("[TARGET-MIB]: " ++ F, A).
-
-
diff --git a/lib/snmp/src/agent/snmp_user_based_sm_mib.erl b/lib/snmp/src/agent/snmp_user_based_sm_mib.erl
index 69dce337ba..ce6dc21435 100644
--- a/lib/snmp/src/agent/snmp_user_based_sm_mib.erl
+++ b/lib/snmp/src/agent/snmp_user_based_sm_mib.erl
@@ -1,7 +1,7 @@
 %% 
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1999-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -439,8 +439,9 @@ usmUserSpinLock(print) ->
     
 usmUserSpinLock(new) ->
     snmp_generic:variable_func(new, {usmUserSpinLock, volatile}),
-    {A1,A2,A3} = erlang:now(),
-    random:seed(A1,A2,A3),
+    random:seed(erlang:phash2([node()]),
+                erlang:monotonic_time(),
+                erlang:unique_integer()),
     Val = random:uniform(2147483648) - 1,
     snmp_generic:variable_func(set, Val, {usmUserSpinLock, volatile});
 
@@ -1191,29 +1192,7 @@ extract_new_key(Hash, OldKey, KeyChange) ->
 -define(i8(Int), Int band 255).
 
 mk_random(Len) when Len =< 20 ->
-    %% Use of yield():
-    %% This will either schedule another process, or fail and invoke
-    %% the error_handler (in old versions).  In either case, it is
-    %% safe to assume that now, reductions and garbage_collection have
-    %% changed in a non-deterministically way.
-    {_,_,A} = erlang:now(),
-    catch erlang:yield(),
-    {_,_,B} = erlang:now(),
-    catch erlang:yield(),
-    {_,_,C} = erlang:now(),
-    {D,_}   = erlang:statistics(reductions),
-    {E,_}   = erlang:statistics(runtime),
-    {F,_}   = erlang:statistics(wall_clock),
-    {G,H,_} = erlang:statistics(garbage_collection),
-    catch erlang:yield(),
-    {_,_,C2} = erlang:now(),
-    {D2,_}   = erlang:statistics(reductions),
-    {_,H2,_} = erlang:statistics(garbage_collection),
-    %% X(N) means we can use N bits from variable X:
-    %% A(16) B(16) C(16) D(16) E(8) F(16) G(8) H(16)
-    Rnd20 = [?i16(A),?i16(B),?i16(C),?i16(D),?i8(E),?i16(F),
-	     ?i8(G),?i16(H),?i16(C2),?i16(D2),?i16(H2)],
-    lists:sublist(Rnd20, Len).
+    binary_to_list(crypto:strong_rand_bytes(Len)).
     
 split(0, Rest, FirstRev) ->
     {lists:reverse(FirstRev), Rest};
diff --git a/lib/snmp/src/agent/snmp_view_based_acm_mib.erl b/lib/snmp/src/agent/snmp_view_based_acm_mib.erl
index 722bd7ac5b..28e2bdbb96 100644
--- a/lib/snmp/src/agent/snmp_view_based_acm_mib.erl
+++ b/lib/snmp/src/agent/snmp_view_based_acm_mib.erl
@@ -1,7 +1,7 @@
 %% 
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1999-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -845,8 +845,9 @@ vacmViewSpinLock(print) ->
 
 vacmViewSpinLock(new) ->
     snmp_generic:variable_func(new, volatile_db(vacmViewSpinLock)),
-    {A1,A2,A3} = erlang:now(),
-    random:seed(A1,A2,A3),
+    random:seed(erlang:phash2([node()]),
+                erlang:monotonic_time(),
+                erlang:unique_integer()),
     Val = random:uniform(2147483648) - 1,
     snmp_generic:variable_func(set, Val, volatile_db(vacmViewSpinLock));
 
@@ -1133,4 +1134,3 @@ error(Reason) ->
 
 config_err(F, A) ->
     snmpa_error:config_err("[VIEW-BASED-ACM-MIB]: " ++ F, A).
-
diff --git a/lib/snmp/src/agent/snmpa_mpd.erl b/lib/snmp/src/agent/snmpa_mpd.erl
index 642b1f7fc5..24007a4e63 100644
--- a/lib/snmp/src/agent/snmpa_mpd.erl
+++ b/lib/snmp/src/agent/snmpa_mpd.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1997-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -75,8 +75,9 @@
 init(Vsns) ->
     ?vlog("init -> entry with"
 	"~n   Vsns: ~p", [Vsns]),
-    {A,B,C} = erlang:now(),
-    random:seed(A,B,C),
+    random:seed(erlang:phash2([node()]),
+                erlang:monotonic_time(),
+                erlang:unique_integer()),
     ets:insert(snmp_agent_table, {msg_id, random:uniform(2147483647)}),
     ets:insert(snmp_agent_table, {req_id, random:uniform(2147483647)}),
     init_counters(),
@@ -771,21 +772,7 @@ generate_v3_report_msg(MsgID, MsgSecurityModel, Data, LocalEngineID,
 			   ContextEngineID, ContextName, SecData}, 
 			  LocalEngineID, Log).
 
-%% req_id(#scopedPdu{data = #pdu{request_id = ReqId}}) ->
-%%     ?vtrace("Report ReqId: ~p",[ReqId]),
-%%     ReqId;
-%% req_id(_) ->
-%%     0. % RFC2572, 7.1.3.c.4
 
-    
-%% maybe_generate_discovery1_report_msg() ->
-%%     case (catch DiscoveryHandler:handle_discovery1(Ip, Udp, EngineId)) of
-%% 	{ok, Entry} when is_record(Entry, snmp_discovery_data1) ->
-%% 	    ok;
-%% 	ignore ->
-%% 	    ok;
-%% 	{error, Reason} ->
-	    
 %% Response to stage 1 discovery message (terminating, i.e. from the manager)
 generate_discovery1_report_msg(MsgID, MsgSecurityModel, 
 			       SecName, SecLevel, 
diff --git a/lib/snmp/src/agent/snmpa_net_if.erl b/lib/snmp/src/agent/snmpa_net_if.erl
index 57d63bab5b..c813c57d56 100644
--- a/lib/snmp/src/agent/snmpa_net_if.erl
+++ b/lib/snmp/src/agent/snmpa_net_if.erl
@@ -674,7 +674,7 @@ handle_recv(
   #state{mpd_state  = MpdState, note_store = NS, log = Log} = S,
   #transport{socket = Socket} = Transport,
   From, Packet) ->
-    put(n1, erlang:now()),
+    put(n1, erlang:monotonic_time(micro_seconds)),
     LogF =
 	fun(Type, Data) ->
 		log(Log, Type, Data, From)
@@ -1379,15 +1379,7 @@ do_close_log(_) ->
 %%% DEBUG FUNCTIONS
 %%%-----------------------------------------------------------------
 time_in_agent() ->
-    subtr(erlang:now(), get(n1)).
-
-subtr({X1,Y1,Z1}, {X1,Y1,Z2}) ->
-    Z1 - Z2;
-subtr({X1,Y1,Z1}, {X1,Y2,Z2}) ->
-    ((Y1-Y2) * 1000000) + (Z1 - Z2);
-subtr({X1,Y1,Z1}, {X2,Y2,Z2}) ->
-    ((X1 - X2) * 1000000000000) + ((Y1 - Y2) * 1000000) + (Z1 - Z2).
-
+    erlang:monotonic_time(micro_seconds) - get(n1).
 
 %% ----------------------------------------------------------------
 
@@ -1637,10 +1629,3 @@ get_port_info(Id) ->
 
 
 %% ----------------------------------------------------------------
-
-% i(F) ->
-%     i(F, []).
-
-% i(F, A) ->
-%     io:format("~p: " ++ F ++ "~n", [?MODULE|A]).
-
diff --git a/lib/snmp/src/agent/snmpa_usm.erl b/lib/snmp/src/agent/snmpa_usm.erl
index 719ea4e356..c571e50517 100644
--- a/lib/snmp/src/agent/snmpa_usm.erl
+++ b/lib/snmp/src/agent/snmpa_usm.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1999-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -645,8 +645,9 @@ get_des_salt() ->
 		ets:insert(snmp_agent_table, {usm_des_salt, 0}),
 		0;
 	    _ -> % it doesn't exist, initialize
-		{A1,A2,A3} = erlang:now(),
-		random:seed(A1,A2,A3),
+                random:seed(erlang:phash2([node()]),
+                            erlang:monotonic_time(),
+                            erlang:unique_integer()),
 		R = random:uniform(4294967295),
 		ets:insert(snmp_agent_table, {usm_des_salt, R}),
 		R
@@ -677,8 +678,9 @@ get_aes_salt() ->
 		ets:insert(snmp_agent_table, {usm_aes_salt, 0}),
 		0;
 	    _ -> % it doesn't exist, initialize
-		{A1,A2,A3} = erlang:now(),
-		random:seed(A1,A2,A3),
+                random:seed(erlang:phash2([node()]),
+                            erlang:monotonic_time(),
+                            erlang:unique_integer()),
 		R = random:uniform(36893488147419103231),
 		ets:insert(snmp_agent_table, {usm_aes_salt, R}),
 		R
diff --git a/lib/snmp/src/agent/snmpa_vacm.erl b/lib/snmp/src/agent/snmpa_vacm.erl
index dadcf32543..281b2bd34a 100644
--- a/lib/snmp/src/agent/snmpa_vacm.erl
+++ b/lib/snmp/src/agent/snmpa_vacm.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1999-2012. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -305,8 +305,8 @@ dump_table() ->
 %% time dumping the table.
 unique_table_name(Pre) ->
     %% We want something that is guaranteed to be unique, 
-    %% therefor we use erlang:now() instead of os:timestamp()
-    unique_table_name(Pre, erlang:now()).
+    %% therefor we use erlang:timestamp() instead of os:timestamp()
+    unique_table_name(Pre, erlang:timestamp()).
 
 unique_table_name(Pre, {_A, _B, C} = Now) ->
     {Date, Time}     = calendar:now_to_datetime(Now),
@@ -445,6 +445,3 @@ gc_tab(Oid) ->
 
 user_err(F, A) ->
     snmpa_error:user_err(F, A).
-
-% config_err(F, A) ->
-%     snmpa_error:config_err(F, A).
diff --git a/lib/snmp/src/app/snmp.app.src b/lib/snmp/src/app/snmp.app.src
index cbd292e4c3..a55bb389ba 100644
--- a/lib/snmp/src/app/snmp.app.src
+++ b/lib/snmp/src/app/snmp.app.src
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -137,5 +137,5 @@
   %% before snmp.
   {applications, [kernel, stdlib]},
   {mod, {snmp_app, []}},
-  {runtime_dependencies, ["stdlib-2.0","runtime_tools-1.8.14","mnesia-4.12",
+  {runtime_dependencies, ["stdlib-2.5","runtime_tools-1.8.14","mnesia-4.12",
 			  "kernel-3.0","erts-6.0","crypto-3.3"]}]}.
diff --git a/lib/snmp/src/app/snmp.appup.src b/lib/snmp/src/app/snmp.appup.src
index 081163b368..a21ff863be 100644
--- a/lib/snmp/src/app/snmp.appup.src
+++ b/lib/snmp/src/app/snmp.appup.src
@@ -28,6 +28,8 @@
 %% {update, snmpa_local_db, soft, soft_purge, soft_purge, []}
 %% {add_module,  snmpm_net_if_mt}
  [
+  {"5.1.2", [ % Only runtime dependencies change
+  ]},
   {"5.1.1", [{restart_application, snmp}]},
   {"5.1", [ % Only compiler changes
   ]},
@@ -47,6 +49,8 @@
 %% {remove, {snmpm_net_if_mt, soft_purge, soft_purge}}
 
  [
+  {"5.1.2", [ % Only runtime dependencies change
+  ]},
   {"5.1.1", [{restart_application, snmp}]},
   {"5.1", [ % Only compiler changes
   ]},
diff --git a/lib/snmp/src/compile/snmpc.erl b/lib/snmp/src/compile/snmpc.erl
index 2f065dddac..e7839c0792 100644
--- a/lib/snmp/src/compile/snmpc.erl
+++ b/lib/snmp/src/compile/snmpc.erl
@@ -1,7 +1,7 @@
 %% 
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1997-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -409,8 +409,9 @@ get_verbosity(Options) ->
 %%----------------------------------------------------------------------
 
 init(From, MibFileName, Options) ->
-    {A,B,C} = now(),
-    random:seed(A,B,C),
+    random:seed(erlang:phash2([node()]),
+                erlang:monotonic_time(),
+                erlang:unique_integer()),
     put(options,            Options),
     put(verbosity,          get_verbosity(Options)),
     put(description,        get_description(Options)),
diff --git a/lib/snmp/src/manager/snmpm.erl b/lib/snmp/src/manager/snmpm.erl
index 8976322c4e..96e3d55b46 100644
--- a/lib/snmp/src/manager/snmpm.erl
+++ b/lib/snmp/src/manager/snmpm.erl
@@ -520,7 +520,7 @@ sync_get(UserId, TargetName, Context, Oids, Timeout, ExtraInfo) ->
 
 
 
-%% --- asynchroneous get-request ---
+%% --- asynchronous get-request ---
 %% 
 %% The reply will be delivered to the user
 %% through a call to handle_pdu/5
@@ -588,7 +588,7 @@ sync_get_next(UserId, TargetName, Context, Oids, Timeout, ExtraInfo) ->
 %% </BACKWARD-COMPAT>
 
 
-%% --- asynchroneous get_next-request ---
+%% --- asynchronous get_next-request ---
 %% 
 
 async_get_next2(UserId, TargetName, Oids) ->
@@ -654,7 +654,7 @@ sync_set(UserId, TargetName, Context, VarsAndVals, Timeout, ExtraInfo) ->
 %% </BACKWARD-COMPAT>
 
 
-%% --- asynchroneous set-request --- 
+%% --- asynchronous set-request ---
 %% 
 
 async_set2(UserId, TargetName, VarsAndVals) ->
@@ -746,7 +746,7 @@ sync_get_bulk(UserId, TargetName, NonRep, MaxRep, Context, Oids, Timeout,
 %% </BACKWARD-COMPAT>
 
 
-%% --- asynchroneous get-bulk ---
+%% --- asynchronous get-bulk ---
 %% 
 
 async_get_bulk2(UserId, TargetName, NonRep, MaxRep, Oids) ->
diff --git a/lib/snmp/src/manager/snmpm_mpd.erl b/lib/snmp/src/manager/snmpm_mpd.erl
index f8a7441c0a..5fc9d3655c 100644
--- a/lib/snmp/src/manager/snmpm_mpd.erl
+++ b/lib/snmp/src/manager/snmpm_mpd.erl
@@ -1,7 +1,7 @@
 %% 
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2004-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2004-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -67,8 +67,9 @@
 %%%-----------------------------------------------------------------
 init(Vsns) ->
     ?vdebug("init -> entry with ~p", [Vsns]),
-    {A,B,C} = erlang:now(),
-    random:seed(A,B,C),
+    random:seed(erlang:phash2([node()]),
+                erlang:monotonic_time(),
+                erlang:unique_integer()),
     snmpm_config:cre_counter(msg_id, random:uniform(2147483647)),
     snmpm_config:cre_counter(req_id, random:uniform(2147483647)),
     init_counters(),
@@ -896,17 +897,6 @@ get_agent_engine_id(Name) ->
 is_known_engine_id(EngineID, {Addr, Port}) ->
     snmpm_config:is_known_engine_id(EngineID, Addr, Port).
 
-%% is_known_engine_id(EngineID, Addr, Port) ->
-%%     snmpm_config:is_known_engine_id(EngineID, Addr, Port).
-
-% get_agent_engine_id(Addr, Port) ->
-%     case snmpm_config:get_agent_engine_id(Addr, Port) of
-% 	{ok, Id} ->
-% 	    Id;
-% 	_Error ->
-% 	    ""
-%     end.
-
 
 %%-----------------------------------------------------------------
 %% Sequence number (msg-id & req-id) functions
diff --git a/lib/snmp/src/manager/snmpm_net_if.erl b/lib/snmp/src/manager/snmpm_net_if.erl
index 0e1c51c609..e81383eeea 100644
--- a/lib/snmp/src/manager/snmpm_net_if.erl
+++ b/lib/snmp/src/manager/snmpm_net_if.erl
@@ -489,11 +489,6 @@ handle_call({verbosity, Verbosity}, _From, State) ->
     put(verbosity, Verbosity),
     {reply, ok, State};
 
-%% handle_call({system_info_updated, What}, _From, State) ->
-%%     ?vlog("received system_info_updated request with What = ~p", [What]),
-%%     {NewState, Reply} = handle_system_info_updated(State, What),
-%%     {reply, Reply, NewState};
-
 handle_call(get_log_type, _From, State) ->
     ?vlog("received get-log-type request", []),
     Reply = (catch handle_get_log_type(State)),
@@ -816,7 +811,7 @@ handle_inform_request(
 	    ok;
 	[] ->
 	    RePdu  = make_response_pdu(Pdu),
-	    Expire = t() + To, 
+	    Expire = snmp_misc:now(ms) + To,
 	    Rec    = {Key, Expire, {Vsn, ACM, RePdu}},
 	    ets:insert(snmpm_inform_request_table, Rec)
     end.
@@ -876,7 +871,7 @@ maybe_send_inform_response(
     
 handle_inform_response_gc(#state{irb = IRB} = State) ->
     ets:safe_fixtable(snmpm_inform_request_table, true),
-    do_irgc(ets:first(snmpm_inform_request_table), t()),
+    do_irgc(ets:first(snmpm_inform_request_table), snmp_misc:now(ms)),
     ets:safe_fixtable(snmpm_inform_request_table, false),
     State#state{irgc = irgc_start(IRB)}.
 
@@ -1023,110 +1018,6 @@ handle_disk_log(_Log, _Info, State) ->
     State.
 
 
-%% mk_discovery_msg('version-3', Pdu, _VsnHdr, UserName) ->
-%%     ScopedPDU = #scopedPdu{contextEngineID = "",
-%% 			   contextName = "",
-%% 			   data = Pdu},
-%%     Bytes = snmp_pdus:enc_scoped_pdu(ScopedPDU),
-%%     MsgID = get(msg_id),
-%%     put(msg_id,MsgID+1),
-%%     UsmSecParams = 
-%% 	#usmSecurityParameters{msgAuthoritativeEngineID = "",
-%% 			       msgAuthoritativeEngineBoots = 0,
-%% 			       msgAuthoritativeEngineTime = 0,
-%% 			       msgUserName = UserName,
-%% 			       msgPrivacyParameters = "",
-%% 			       msgAuthenticationParameters = ""},
-%%     SecBytes = snmp_pdus:enc_usm_security_parameters(UsmSecParams),
-%%     PduType = Pdu#pdu.type,
-%%     Hdr = #v3_hdr{msgID = MsgID, 
-%% 		  msgMaxSize = 1000,
-%% 		  msgFlags = snmp_misc:mk_msg_flags(PduType, 0),
-%% 		  msgSecurityModel = ?SEC_USM,
-%% 		  msgSecurityParameters = SecBytes},
-%%     Msg = #message{version = 'version-3', vsn_hdr = Hdr, data = Bytes},
-%%     case (catch snmp_pdus:enc_message_only(Msg)) of
-%% 	{'EXIT', Reason} ->
-%% 	    error("Encoding error. Pdu: ~w. Reason: ~w",[Pdu, Reason]),
-%% 	    error;
-%% 	L when list(L) ->
-%% 	    {Msg, L}
-%%     end;
-%% mk_discovery_msg(Version, Pdu, {Com, _, _, _, _}, UserName) ->
-%%     Msg = #message{version = Version, vsn_hdr = Com, data = Pdu},
-%%     case catch snmp_pdus:enc_message(Msg) of
-%% 	{'EXIT', Reason} ->
-%% 	    error("Encoding error. Pdu: ~w. Reason: ~w",[Pdu, Reason]),
-%% 	    error;
-%% 	L when list(L) -> 
-%% 	    {Msg, L}
-%%     end.
-
-
-%% mk_msg('version-3', Pdu, {Context, User, EngineID, CtxEngineId, SecLevel}, 
-%%        MsgData) ->
-%%     %% Code copied from snmp_mpd.erl
-%%     {MsgId, SecName, SecData} =
-%% 	if
-%% 	    tuple(MsgData), Pdu#pdu.type == 'get-response' ->
-%% 		MsgData;
-%% 	    true -> 
-%% 		Md = get(msg_id),
-%% 		put(msg_id, Md + 1),
-%% 		{Md, User, []}
-%% 	end,
-%%     ScopedPDU = #scopedPdu{contextEngineID = CtxEngineId,
-%% 			   contextName = Context,
-%% 			   data = Pdu},
-%%     ScopedPDUBytes = snmp_pdus:enc_scoped_pdu(ScopedPDU),
-
-%%     PduType = Pdu#pdu.type,
-%%     V3Hdr = #v3_hdr{msgID      = MsgId,
-%% 		    msgMaxSize = 1000,
-%% 		    msgFlags   = snmp_misc:mk_msg_flags(PduType, SecLevel),
-%% 		    msgSecurityModel = ?SEC_USM},
-%%     Message = #message{version = 'version-3', vsn_hdr = V3Hdr,
-%% 		       data = ScopedPDUBytes},
-%%     SecEngineID = case PduType of
-%% 		      'get-response' -> snmp_framework_mib:get_engine_id();
-%% 		      _ -> EngineID
-%% 		  end,
-%%     case catch snmp_usm:generate_outgoing_msg(Message, SecEngineID,
-%% 					      SecName, SecData, SecLevel) of
-%% 	{'EXIT', Reason} ->
-%% 	    error("Encoding error. Pdu: ~w. Reason: ~w",[Pdu, Reason]),
-%% 	    error;
-%% 	{error, Reason} ->
-%% 	    error("Encoding error. Pdu: ~w. Reason: ~w",[Pdu, Reason]),
-%% 	    error;
-%% 	Packet ->
-%% 	    Packet
-%%     end;
-%% mk_msg(Version, Pdu, {Com, _User, _EngineID, _Ctx, _SecLevel}, _SecData) ->
-%%     Msg = #message{version = Version, vsn_hdr = Com, data = Pdu},
-%%     case catch snmp_pdus:enc_message(Msg) of
-%% 	{'EXIT', Reason} ->
-%% 	    error("Encoding error. Pdu: ~w. Reason: ~w",[Pdu, Reason]),
-%% 	    error;
-%% 	B when list(B) -> 
-%% 	    B
-%%     end.
-
-
-%% handle_system_info_updated(#state{log = {Log, _OldType}} = State, 
-%% 			   audit_trail_log_type = _What) ->
-%%     %% Just to make sure, check that ATL is actually enabled
-%%     case snmpm_config:system_info(audit_trail_log) of
-%% 	{ok, true} ->
-%% 	    {ok, Type} = snmpm_config:system_info(audit_trail_log_type),
-%% 	    NewState = State#state{log = {Log, Type}},
-%% 	    {NewState, ok};
-%% 	_ ->
-%% 	    {State, {error, {adt_not_enabled}}}
-%%     end;
-%% handle_system_info_updated(_State, _What) ->
-%%     ok.
-
 handle_get_log_type(#state{log = {_Log, Value}} = State) ->
     %% Just to make sure, check that ATL is actually enabled
     case snmpm_config:system_info(audit_trail_log) of
@@ -1257,13 +1148,6 @@ maybe_process_extra_info(_ExtraInfo) ->
 
 %% -------------------------------------------------------------------
 
-t() ->
-    {A,B,C} = erlang:now(),
-    A*1000000000+B*1000+(C div 1000).
-
-
-%% -------------------------------------------------------------------
-
 %% info_msg(F, A) ->
 %%     ?snmpm_info("NET-IF server: " ++ F, A).
 
@@ -1301,8 +1185,6 @@ proc_mem(P) when is_pid(P) ->
 	_ ->
 	    undefined
     end.
-%% proc_mem(_) ->
-%%     undefined.
 
 
 get_port_info(Id) ->
@@ -1382,20 +1264,6 @@ counters() ->
 inc(Name)    -> inc(Name, 1).
 inc(Name, N) -> snmpm_config:incr_stats_counter(Name, N).
 
-%% get_counters() ->
-%%     Counters = counters(),
-%%     get_counters(Counters, []).
-
-%% get_counters([], Acc) ->
-%%     lists:reverse(Acc);
-%% get_counters([Counter|Counters], Acc) ->
-%%     case snmpm_config:get_stats_counter(Counter) of
-%%         {ok, CounterVal} ->
-%%             get_counters(Counters, [{Counter, CounterVal}|Acc]);
-%%         _ ->
-%%             get_counters(Counters, Acc)
-%%     end.
-
 
 %% ----------------------------------------------------------------
 
diff --git a/lib/snmp/src/manager/snmpm_server.erl b/lib/snmp/src/manager/snmpm_server.erl
index 8fc3359159..00a9b82daa 100644
--- a/lib/snmp/src/manager/snmpm_server.erl
+++ b/lib/snmp/src/manager/snmpm_server.erl
@@ -467,27 +467,6 @@ cancel_async_request(UserId, ReqId) ->
     call({cancel_async_request, UserId, ReqId}).
 
 
-%% discovery(UserId, BAddr) ->
-%%     discovery(UserId, BAddr, ?SNMP_AGENT_PORT, [], 
-%% 	      ?DEFAULT_ASYNC_EXPIRE, ?EXTRA_INFO).
-
-%% discovery(UserId, BAddr, Config) when is_list(Config) ->
-%%     discovery(UserId, BAddr, ?SNMP_AGENT_PORT, Config, 
-%% 	      ?DEFAULT_ASYNC_EXPIRE, ?EXTRA_INFO);
-
-%% discovery(UserId, BAddr, Expire) when is_integer(Expire) ->
-%%     discovery(UserId, BAddr, ?SNMP_AGENT_PORT, [], Expire, ?EXTRA_INFO).
-
-%% discovery(UserId, BAddr, Config, Expire) ->
-%%     discovery(UserId, BAddr, ?SNMP_AGENT_PORT, Config, Expire, ?EXTRA_INFO).
-
-%% discovery(UserId, BAddr, Port, Config, Expire) ->
-%%     discovery(UserId, BAddr, Port, Config, Expire, ?EXTRA_INFO).
-
-%% discovery(UserId, BAddr, Port, Config, Expire, ExtraInfo) ->
-%%     call({discovery, self(), UserId, BAddr, Port, Config, Expire, ExtraInfo}).
-
-
 verbosity(Verbosity) ->
     case ?vvalidate(Verbosity) of
 	Verbosity ->
@@ -927,14 +906,6 @@ handle_call({cancel_async_request, UserId, ReqId}, _From, State) ->
     {reply, Reply, State};
 
 
-%% handle_call({discovery, Pid, UserId, BAddr, Port, Config, Expire, ExtraInfo}, 
-%% 	    _From, State) ->
-%%     ?vlog("received discovery request", []),
-%%     Reply = (catch handle_discovery(Pid, UserId, BAddr, Port, Config, 
-%% 				    Expire, ExtraInfo, State)),
-%%     {reply, Reply, State};
-
-
 handle_call({load_mib, Mib}, _From, State) ->
     ?vlog("received load_mib request", []),
     case snmpm_config:load_mib(Mib) of
@@ -988,13 +959,6 @@ handle_call(is_started, _From, State) ->
     IsStarted = is_started(State), 
     {reply, IsStarted, State};
 
-%% handle_call({system_info_updated, Target, What}, _From, State) ->
-%%     ?vlog("received system_info_updated request: "
-%% 	  "~n   Target: ~p"
-%% 	  "~n   What:   ~p", [Target, What]),
-%%     Reply = handle_system_info_updated(State, Target, What), 
-%%     {reply, Reply, State};
-
 handle_call(get_log_type, _From, State) ->
     ?vlog("received get_log_type request", []),
     Reply = handle_get_log_type(State), 
@@ -1042,11 +1006,6 @@ handle_info({snmp_error, ReqId, Reason, Domain, Addr}, State) ->
     handle_snmp_error(Domain, Addr, ReqId, Reason, State),
     {noreply, State};
 
-%% handle_info({snmp_error, ReqId, Pdu, Reason, Addr, Port}, State) ->
-%%     ?vlog("received snmp_error message", []),
-%%     handle_snmp_error(Pdu, ReqId, Reason, Addr, Port, State),
-%%     {noreply, State};
-
 
 handle_info({snmp_pdu, Pdu, Domain, Addr}, State) ->
     ?vlog("received snmp_pdu message", []),
@@ -1411,7 +1370,7 @@ handle_async_get(Pid, UserId, TargetName, Oids, SendOpts, State) ->
 			      address  = Addr,
 			      type     = get, 
 			      data     = MsgData, 
-			      expire   = t() + Expire},
+			      expire   = snmp_misc:now(ms) + Expire},
 
 	    ets:insert(snmpm_request_table, Req),
 	    gct_activate(State#state.gct),
@@ -1460,7 +1419,7 @@ handle_async_get_next(Pid, UserId, TargetName, Oids, SendOpts, State) ->
 			      address  = Addr,
 			      type     = get_next, 
 			      data     = MsgData, 
-			      expire   = t() + Expire},
+			      expire   = snmp_misc:now(ms) + Expire},
 
 	    ets:insert(snmpm_request_table, Req),
 	    gct_activate(State#state.gct),
@@ -1516,7 +1475,7 @@ handle_async_get_bulk(Pid,
 			      address  = Addr,
 			      type     = get_bulk, 
 			      data     = MsgData, 
-			      expire   = t() + Expire},
+			      expire   = snmp_misc:now(ms) + Expire},
 	    ets:insert(snmpm_request_table, Req),
 	    gct_activate(State#state.gct),
 	    {ok, ReqId};
@@ -1564,7 +1523,7 @@ handle_async_set(Pid, UserId, TargetName, VarsAndVals, SendOpts, State) ->
 			      address  = Addr,
 			      type     = set, 
 			      data     = MsgData, 
-			      expire   = t() + Expire},
+			      expire   = snmp_misc:now(ms) + Expire},
 
 	    ets:insert(snmpm_request_table, Req),
 	    gct_activate(State#state.gct),
@@ -1600,18 +1559,6 @@ handle_cancel_async_request(UserId, ReqId, _State) ->
 	    ?vlog("handle_cancel_async_request -> not found", []),
 	    {error, not_found}
     end.
-    
-
-%% handle_system_info_updated(#state{net_if = Pid, net_if_mod = Mod} = _State,
-%% 			   net_if = _Target, What) ->
-%%     case (catch Mod:system_info_updated(Pid, What)) of
-%% 	{'EXIT', _} ->
-%% 	    {error, not_supported};
-%% 	Else ->
-%% 	    Else
-%%     end;
-%% handle_system_info_updated(_State, Target, What) ->
-%%     {error, {bad_target, Target, What}}.
 
 handle_get_log_type(#state{net_if = Pid, net_if_mod = Mod}) ->
     case (catch Mod:get_log_type(Pid)) of
@@ -1629,47 +1576,6 @@ handle_set_log_type(#state{net_if = Pid, net_if_mod = Mod}, NewType) ->
 	    Else
     end.
 
-
-%% handle_discovery(Pid, UserId, BAddr, Port, Config, Expire, ExtraInfo, State) ->
-%%     ?vtrace("handle_discovery -> entry with"
-%% 	    "~n   Pid:         ~p"
-%% 	    "~n   UserId:      ~p"
-%% 	    "~n   BAddr:       ~p"
-%% 	    "~n   Port:        ~p"
-%% 	    "~n   Config:      ~p"
-%% 	    "~n   Expire:      ~p",
-%% 	    [Pid, UserId, BAddr, Port, Config, Expire]),
-%%     case agent_data(default, default, "", Config) of
-%% 	{ok, Addr, Port, Vsn, MsgData} ->
-%% 	    ?vtrace("handle_discovery -> send a ~p disco message", [Vsn]),
-%% 	    ReqId  = send_discovery(Vsn, MsgData, BAddr, Port, ExtraInfo, 
-%% 				    State),
-%% 	    ?vdebug("handle_discovery -> ReqId: ~p", [ReqId]),
-%% 	    MonRef = erlang:monitor(process, Pid),
-%% 	    ?vtrace("handle_discovery -> MonRef: ~p", [MonRef]),
-%% 	    Req    = #request{id        = ReqId,
-%% 			      user_id   = UserId, 
-%%			      target    = TargetName, 
-%% 			      addr      = BAddr, 
-%% 			      port      = Port,
-%% 			      type      = get, 
-%% 			      data      = MsgData, 
-%% 			      mon       = MonRef,
-%% 			      discovery = true, 
-%% 			      expire    = t() + Expire},
-%% 	    ets:insert(snmpm_request_table, Req),
-%% 	    gct_activate(State#state.gct),
-%% 	    {ok, ReqId};
-
-%% 	Error ->
-%% 	    ?vinfo("failed retrieving agent data for discovery (get):"
-%% 		   "~n   BAddr: ~p"
-%% 		   "~n   Port:  ~p"
-%% 		   "~n   Error: ~p", [BAddr, Port, Error]),
-%% 	    Error
-%%     end.
-
-
 handle_sync_timeout(ReqId, From, State) ->
     ?vtrace("handle_sync_timeout -> entry with"
 	    "~n   ReqId: ~p"
@@ -1693,7 +1599,7 @@ handle_sync_timeout(ReqId, From, State) ->
 	    Req = Req0#request{ref    = undefined, 
 			       mon    = undefined, 
 			       from   = undefined, 
-			       expire = t()},
+			       expire = snmp_misc:now(ms)},
 	    ets:insert(snmpm_request_table, Req),
 	    gct_activate(State#state.gct),
 	    ok;
@@ -3026,7 +2932,7 @@ cancel_timer(Ref) ->
 
 handle_gc(GCT) ->
     ets:safe_fixtable(snmpm_request_table, true),
-    case do_gc(ets:first(snmpm_request_table), t()) of
+    case do_gc(ets:first(snmpm_request_table), snmp_misc:now(ms)) of
 	0 ->
 	    gct_deactivate(GCT);
 	_ ->
@@ -3100,23 +3006,11 @@ send_set_request(VarsAndVals, Vsn, MsgData, Domain, Addr, ExtraInfo,
     Mod:send_pdu(NetIf, Pdu, Vsn, MsgData, Domain, Addr, ExtraInfo),
     Pdu#pdu.request_id.
 
-%% send_discovery(Vsn, MsgData, Addr, Port, ExtraInfo, 
-%% 	       #state{net_if     = NetIf, 
-%% 		      net_if_mod = Mod}) ->
-%%     Pdu = make_discovery_pdu(),
-%%     Mod:send_pdu(NetIf, Pdu, Vsn, MsgData, Addr, Port, ExtraInfo),
-%%     Pdu#pdu.request_id.
-							  
-
 
 %%----------------------------------------------------------------------
 %% 
 %%----------------------------------------------------------------------
 
-%% make_discovery_pdu() ->
-%%     Oids = [?sysObjectID_instance, ?sysDescr_instance, ?sysUpTime_instance],
-%%     make_pdu_impl(get, Oids).
-
 make_pdu(set, VarsAndVals, MiniMIB) ->
     VBs = [var_and_value_to_varbind(VAV, MiniMIB) || VAV <- VarsAndVals],
     make_pdu_impl(set, VBs);
@@ -3399,7 +3293,7 @@ gct_init(#gct{parent = Parent, timeout = Timeout} = State) ->
     gct(State, Timeout).
 
 gct(#gct{parent = Parent, state = active} = State, Timeout) ->
-    T = t(),
+    T = snmp_misc:now(ms),
     receive
 	{stop, Parent} ->
 	    ok;
@@ -3457,7 +3351,7 @@ gct(#gct{parent = Parent, state = idle} = State, Timeout) ->
     end.
 
 new_timeout(T1, T2) ->
-    case T1 - (t() - T2) of
+    case T1 - (snmp_misc:now(ms) - T2) of
 	T when (T > 0) ->
 	    T;
 	_ ->
@@ -3477,11 +3371,6 @@ maybe_demonitor(undefined) ->
 maybe_demonitor(MonRef) ->
     erlang:demonitor(MonRef).
 
-%% Time in milli seconds
-t() ->
-    {A,B,C} = erlang:now(),
-    A*1000000000+B*1000+(C div 1000).
-
 mk_target_name(Domain, Addr, Config) ->
     snmpm_config:mk_target_name(Domain, Addr, Config).
 
@@ -3520,12 +3409,6 @@ call(Req) ->
 call(Req, To) ->
     gen_server:call(?SERVER, Req, To).
 
-%% cast(Msg) ->
-%%     gen_server:cast(?SERVER, Msg).
-
-%% info_msg(F, A) ->
-%%     ?snmpm_info("Server: " ++ F, A).
-
 warning_msg(F, A) ->
     ?snmpm_warning("Server: " ++ F, A).
 
@@ -3601,20 +3484,3 @@ note_store_info(Pid) ->
 
 
 %%----------------------------------------------------------------------
-
-
-%%----------------------------------------------------------------------
-%% Debug
-%%----------------------------------------------------------------------
-
-% sz(L) when is_list(L) ->
-%     length(lists:flatten(L));
-% sz(B) when is_binary(B) ->
-%     size(B).
-
-%% p(F) ->
-%%     p(F, []).
-
-%% p(F, A) ->
-%%     io:format("~w:" ++ F ++ "~n", [?MODULE | A]).
-
diff --git a/lib/snmp/src/misc/snmp_misc.erl b/lib/snmp/src/misc/snmp_misc.erl
index c36cee2a53..cc438977c9 100644
--- a/lib/snmp/src/misc/snmp_misc.erl
+++ b/lib/snmp/src/misc/snmp_misc.erl
@@ -1,7 +1,7 @@
 %% 
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -101,21 +101,14 @@ sleep(Time) ->
 %% Returns time in ms = sec/1000
 % now() -> now(ms).
 now(ms) ->
-    Now = erlang:now(),
-    element(1,Now)*1000000000+
-	element(2,Now)*1000+
-	(element(3,Now) div 1000);
+    erlang:monotonic_time(milli_seconds);
+
 %% Returns time in cs = sec/100
 now(cs) ->
-    Now = erlang:now(),
-    element(1,Now)*100000000+
-        element(2,Now)*100+
-	(element(3,Now) div 10000);
+    erlang:monotonic_time(100);
+
 now(sec) ->
-    Now = erlang:now(),
-    element(1,Now)*1000000+
-        element(2,Now)+
-	(element(3,Now) div 1000000).
+    erlang:monotonic_time(seconds).
     
 
 is_crypto_supported(Alg) ->
@@ -479,7 +472,3 @@ format_val('OBJECT IDENTIFIER', _, Val, MiniMib) ->
     io_lib:format("~w", [NVal]);
 format_val(_, _, Val, _MiniMib) ->
     io_lib:format("~p", [Val]).
-    
-
-
-
diff --git a/lib/snmp/src/misc/snmp_verbosity.erl b/lib/snmp/src/misc/snmp_verbosity.erl
index f27c31db03..c9192158ef 100644
--- a/lib/snmp/src/misc/snmp_verbosity.erl
+++ b/lib/snmp/src/misc/snmp_verbosity.erl
@@ -1,7 +1,7 @@
 %% 
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2000-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -69,7 +69,7 @@ print2(_Verbosity,Format,Arguments) ->
 
 
 timestamp() ->
-    format_timestamp(now()).
+    format_timestamp(os:timestamp()).
 
 format_timestamp({_N1, _N2, N3} = Now) ->
     {Date, Time}   = calendar:now_to_datetime(Now),
@@ -162,4 +162,3 @@ validate(log)   -> log;
 validate(debug) -> debug;
 validate(trace) -> trace;
 validate(_)     -> silence.
-
diff --git a/lib/snmp/test/snmp_agent_test.erl b/lib/snmp/test/snmp_agent_test.erl
index b4770ad0a9..a28cdf6aca 100644
--- a/lib/snmp/test/snmp_agent_test.erl
+++ b/lib/snmp/test/snmp_agent_test.erl
@@ -1,7 +1,7 @@
 %% 
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2003-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2003-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -426,10 +426,6 @@
 -include_lib("snmp/include/snmp_types.hrl").
 -include_lib("snmp/src/agent/snmpa_atl.hrl").
 
-%% -include_lib("snmp/include/SNMP-COMMUNITY-MIB.hrl").
-%% -include_lib("snmp/include/SNMP-VIEW-BASED-ACM-MIB.hrl").
-%% -include_lib("snmp/include/SNMP-USER-BASED-SM-MIB.hrl").
-
 
 -define(klas1, [1,3,6,1,2,1,7]).
 -define(klas2, [1,3,6,1,2,1,9]).
@@ -1612,7 +1608,8 @@ app_dir(App) ->
 create_local_db_dir(Config) when is_list(Config) ->
     ?P(create_local_db_dir),
     DataDir = snmp_test_lib:lookup(data_dir, Config),
-    T = erlang:now(),
+    UName = erlang:unique_integer([positive]),
+    T = {UName, UName, UName},
     [As,Bs,Cs] = [integer_to_list(I) || I <- tuple_to_list(T)],
     DbDir = filename:join([DataDir, As, Bs, Cs]),
     ok = del_dir(DbDir, 3),
@@ -2448,10 +2445,6 @@ mul_cases() ->
     ].
 
 
-%% multiple_reqs_3(_X) -> 
-%%     {req, [], {conf, init_mul, mul_cases_3(), finish_mul}}.
-
-
 mul_cases_2() -> 
     [
      mul_get_2, 
@@ -3200,19 +3193,18 @@ v1_get_next_p() ->
     %% 4.1.3:2
     gn([[tTooBig]]),
     io:format("We currently don't handle tooBig correct!!!\n"),
-%    ?line ?expect3(tooBig, 0, [{[tTooBig], 'NULL'}]),
+
     ?line ?expect3(tooBig, 0, any),
 
     %% 4.1.3:3
     gn([[tGenErr1]]),
-%    ?line expect(40, genErr, 1, [{[tGenErr1], 'NULL'}]),
+
     ?line ?expect3(genErr, 1, any),
     gn([[tGenErr2]]),
-%    ?line ?expect3(genErr, 1, [{[tGenErr2], 'NULL'}]),
+
     ?line ?expect3(genErr, 1, any),
     gn([[sysDescr], [tGenErr3]]),
-%    ?line ?expect3(genErr, 2, [{[sysDescr], 'NULL'},
-%				 {[tGenErr3], 'NULL'}]).
+
     ?line ?expect3(genErr, 2, any).
     
 v1_set_p() ->
@@ -3451,8 +3443,7 @@ v2_set_p() ->
 %% Req. OLD-SNMPEA-MIB
 table_test() ->
     io:format("Testing simple get, next and set on communityTable...~n"),
-%% {[147,214,36,45], "public", 2, readWrite}.
-%% {[147,214,36,45], "standard trap", 2, read}.
+
     Key1c3 = [intCommunityViewIndex,get(mip),is("public")],
     Key2c3 = [intCommunityViewIndex,get(mip),is("standard trap")],
     Key1c4 = [intCommunityAccess,get(mip),is("public")],
@@ -3620,8 +3611,6 @@ notify(Pid, What) ->
 
 %% Req: system group, OLD-SNMPEA-MIB, Klas1
 big_test() ->
-    %% put(sname, {?MODULE, big_test}),
-    %% put(verbosity, trace),
 
     ?DBG("big_test -> testing simple next/get/set @ master agent...",[]),
     simple_standard_test(),
@@ -5691,8 +5680,7 @@ loop_mib_1(suite) -> [];
 loop_mib_1(Config) when is_list(Config) ->
     ?P(loop_mib_1),
     ?LOG("loop_mib_1 -> initiate case",[]),
-    %% snmpa:verbosity(master_agent,debug),
-    %% snmpa:verbosity(mib_server,info),
+
     {_SaNode, _MgrNode, _MibDir} = init_case(Config),
     ?DBG("loop_mib_1 -> ~n"
 	   "\tSaNode:  ~p~n"
@@ -6643,7 +6631,6 @@ otp8395({init, Config}) when is_list(Config) ->
     %% 
 
     {ok, AgentNode}    = start_node(agent),
-    %% {ok, SubAgentNode} = start_node(sub_agent),
     {ok, ManagerNode}  = start_node(manager),
 
     %% -- 
@@ -6654,16 +6641,9 @@ otp8395({init, Config}) when is_list(Config) ->
     AgentMnesiaDir = join([AgentDbDir, "mnesia"]),
     mnesia_init(AgentNode, AgentMnesiaDir),
 
-    %% SubAgentDir = ?config(sub_agent_dir, Config),
-    %% SubAgentMnesiaDir = join([SubAgentDir, "mnesia"]),
-    %% mnesia_init(SubAgentNode, SubAgentMnesiaDir),
-
-    %% ok = mnesia_create_schema(AgentNode, [AgentNode, SubAgentNode]), 
-    %% ok = mnesia:create_schema([AgentNode, SubAgentNode]),
     mnesia_create_schema(AgentNode, [AgentNode]),
 
     mnesia_start(AgentNode),
-    %% mnesia_start(SubAgentNode),
 
     %% --
     %% Host & IP
@@ -6749,11 +6729,6 @@ otp8395({fin, Config}) when is_list(Config) ->
     ?DBG("otp8395(fin) -> stop agent node", []),
     stop_node(AgentNode),
 
-
-    %% SubAgentNode = ?config(sub_agent_node, Config),
-    %% stop_node(SubAgentNode),
-
-
     %% - 
     %% Stop the manager node
     %% 
@@ -6970,20 +6945,6 @@ process_options(Defaults, _Opts) ->
     %% process_options(Defaults, Opts, []).
     Defaults.
 
-%% process_options([], _Opts, Acc) ->
-%%     lists:reverse(Acc);
-%% process_options([{Key, DefaultValue}|Defaults], Opts, Acc) ->
-%%     case lists:keysearch(Key, 1, Opts) of
-%% 	{value, {Key, Value}} when is_list->
-	    
-
-%% snmp_app_env_init(Node, Entity, Conf) ->
-%%     rpc:call(Node, snmp_app_env_init, [Entity, Conf]).
-
-%% snmp_app_env_init(Entity, Conf) ->
-%%     application:unload(snmp),
-%%     application:load(snmp),
-%%     application:set_env(snmp, Entity, Conf).
 
 start_stdalone_agent(Node, Config)  ->
     rpc:call(Node, ?MODULE, start_stdalone_agent, [Config]).
@@ -7063,9 +7024,6 @@ do_info(MaNode) ->
 			  tree_size_bytes, 
 			  db_memory]}], 
     verify_info(Info, Keys),
-    %% OldInfo = snmpa:old_info_format(Info),
-    %% ?DBG("info_test1 -> OldInfo: ~n~p", [OldInfo]),
-    %% verify_old_info(OldInfo),
     ok.
 
 verify_info([], []) ->
@@ -7107,21 +7065,6 @@ verify_subinfo(Info0, [Key|Keys]) ->
 	Info ->
 	    verify_subinfo(Info, Keys)
     end.
-
-%% verify_old_info(Info) ->
-%%     Keys = [vsns, subagents, loaded_mibs, 
-%% 	    tree_size_bytes, process_memory, db_memory],
-%%     verify_old_info(Keys, Info).
-
-%% verify_old_info([], _) ->
-%%     ok;
-%% verify_old_info([Key|Keys], Info) ->
-%%     case lists:keymember(Key, 1, Info) of
-%% 	true ->
-%% 	    verify_old_info(Keys, Info);
-%% 	false ->
-%% 	    ?FAIL({missing_old_info, Key})
-%%     end.
    
 %% Index String - string used in index
 is(S) -> [length(S) | S].
@@ -7184,8 +7127,6 @@ rewrite_usm_mgr(Dir, ShaKey, DesKey) ->
 reset_usm_mgr(Dir) ->
     snmp_agent_test_lib:reset_usm_mgr(Dir).
 
-%% update_community(Vsns, Dir) ->
-%%     snmp_agent_test_lib:update_community(Vsns, Dir).
 
 update_vacm(Vsn, Dir) ->
     snmp_agent_test_lib:update_vacm(Vsn, Dir).
@@ -7196,8 +7137,6 @@ write_community_conf(Dir, Conf) ->
 write_target_addr_conf(Dir, Conf) ->
     snmp_agent_test_lib:write_target_addr_conf(Dir, Conf).
 
-%% write_target_addr_conf(Dir, ManagerIp, UDP, Vsns) -> 
-%%     snmp_agent_test_lib:write_target_addr_conf(Dir, ManagerIp, UDP, Vsns).
 
 rewrite_target_addr_conf(Dir, NewPort) ->
     snmp_agent_test_lib:rewrite_target_addr_conf(Dir, NewPort).
@@ -7218,10 +7157,6 @@ reset_target_params_conf(Dir) ->
 write_notify_conf(Dir) -> 
     snmp_agent_test_lib:write_notify_conf(Dir).
 
-%% write_view_conf(Dir) -> 
-%%     snmp_agent_test_lib:write_view_conf(Dir).
-
-
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 copy_file(From, To) ->
@@ -7381,9 +7316,6 @@ lists_key1search(Key, List) when is_atom(Key) ->
     end.
 
 
-%% regs() ->
-%%     lists:sort(registered()).
-
 %% ------
 
 join(Parts) ->
diff --git a/lib/snmp/test/snmp_app_test.erl b/lib/snmp/test/snmp_app_test.erl
index 9b13e7cf1a..1e68b4e2c8 100644
--- a/lib/snmp/test/snmp_app_test.erl
+++ b/lib/snmp/test/snmp_app_test.erl
@@ -1,7 +1,7 @@
 %% 
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2003-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2003-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -32,8 +32,6 @@
 	 modules/1,
 	 exportall/1,
 	 app_depend/1,
-	 undef_funcs/1,
-
 	
 	 start_and_stop_empty/1, 
 	 start_and_stop_with_agent/1, 
@@ -59,7 +57,6 @@ all() ->
 	 modules, 
 	 exportall, 
 	 app_depend,
-	 undef_funcs, 
 	 {group, start_and_stop}
 	],
     Cases.
@@ -131,9 +128,6 @@ end_per_suite(Config) when is_list(Config) ->
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 %% Test server callbacks
-init_per_testcase(undef_funcs, Config) ->
-    Config2 = lists:keydelete(watchdog, 1, Config),
-    [{watchdog, ?WD_START(?MINS(10))} | Config2];
 init_per_testcase(_Case, Config) ->
     Config.
 
@@ -293,88 +287,6 @@ check_apps([App|Apps]) ->
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
-undef_funcs(suite) ->
-    [];
-undef_funcs(doc) ->
-    [];
-undef_funcs(Config) when is_list(Config) ->
-    App            = snmp,
-    AppFile        = key1search(app_file, Config),
-    Mods           = key1search(modules, AppFile),
-    Root           = code:root_dir(),
-    LibDir         = code:lib_dir(App),
-    EbinDir        = filename:join([LibDir,"ebin"]),
-    XRefTestName   = undef_funcs_make_name(App, xref_test_name),
-    {ok, XRef}     = xref:start(XRefTestName),
-    ok             = xref:set_default(XRef,
-                                      [{verbose,false},{warnings,false}]),
-    XRefName       = undef_funcs_make_name(App, xref_name),
-    {ok, XRefName} = xref:add_release(XRef, Root, {name,XRefName}),
-    {ok, App}      = xref:replace_application(XRef, App, EbinDir),
-    {ok, Undefs}   = xref:analyze(XRef, undefined_function_calls),
-    xref:stop(XRef),
-    analyze_undefined_function_calls(Undefs, Mods, []).
-
-valid_undef(crypto = CalledMod) ->
-    case (catch CalledMod:version()) of
-        Version when is_list(Version) ->
-	    %% The called module was crypto and the version 
-	    %% function returns a valid value. 
-	    %% This means that the function is
-	    %% actually undefined...
-	    true;
-	_ ->
-	    %% The called module was crypto but the version 
-	    %% function does *not* return a valid value.
-	    %% This means the crypto was not actually not
-	    %% build, which is an case snmp handles.
-	    false
-    end;
-valid_undef(_) ->
-    true.
-
-    
-analyze_undefined_function_calls([], _, []) ->
-    ok;
-analyze_undefined_function_calls([], _, AppUndefs) ->
-    exit({suite_failed, {undefined_function_calls, AppUndefs}});
-analyze_undefined_function_calls([{{Mod, _F, _A}, _C} = AppUndef|Undefs],
-                                 AppModules, AppUndefs) ->
-    %% Check that this module is our's
-    case lists:member(Mod,AppModules) of
-        true ->
-            {Calling,Called} = AppUndef,
-            {Mod1,Func1,Ar1} = Calling,
-            {Mod2,Func2,Ar2} = Called,
-	    %% If the called module is crypto, then we will *not*
-	    %% fail if crypto is not built (since crypto is actually 
-	    %% not built for all platforms)
-	    case valid_undef(Mod2) of
-		true ->
-		    io:format("undefined function call: "
-			      "~n   ~w:~w/~w calls ~w:~w/~w~n",
-			      [Mod1,Func1,Ar1,Mod2,Func2,Ar2]),
-		    analyze_undefined_function_calls(
-		      Undefs, AppModules, [AppUndef|AppUndefs]);
-		false ->
-		    io:format("skipping ~p (calling ~w:~w/~w)~n", 
-			      [Mod, Mod2, Func2, Ar2]),
-		    analyze_undefined_function_calls(Undefs, 
-						     AppModules, AppUndefs)
-	    end;
-        false ->
-	    io:format("dropping ~p~n", [Mod]),
-	    analyze_undefined_function_calls(Undefs, AppModules, AppUndefs)
-    end.
-
-%% This function is used simply to avoid cut-and-paste errors later...
-undef_funcs_make_name(App, PostFix) ->
-    list_to_atom(atom_to_list(App) ++ "_" ++ atom_to_list(PostFix)).
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
diff --git a/lib/snmp/test/snmp_appup_mgr.erl b/lib/snmp/test/snmp_appup_mgr.erl
index 6648ce9dbe..b07f8b3c72 100644
--- a/lib/snmp/test/snmp_appup_mgr.erl
+++ b/lib/snmp/test/snmp_appup_mgr.erl
@@ -1,7 +1,7 @@
 %% 
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2003-2010. All Rights Reserved.
+%% Copyright Ericsson AB 2003-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -140,7 +140,7 @@ handle_req(#agent{host = Host, port = Port}, Reqs) ->
     {ok, ReqId} = snmpm:ag(?USER_ID, Host, Port, Oids),
     p("issued get-request (~w) for: ~s", [ReqId, oid_descs(Descs)]),
     ReqTimer = erlang:send_after(?REQ_TIMEOUT, self(), {req_timeout, ReqId}),
-    {ReqId, erlang:now(), ReqTimer}.
+    {ReqId, erlang:monotonic_time(micro_seconds), ReqTimer}.
 
 oid_descs([]) ->
     [];
@@ -163,7 +163,7 @@ handle_req_timeout(#state{ids = IDs0} = State, ReqId) ->
 handle_snmp(#state{ids = IDs0} = S, {error, ReqId, Reason}) ->
     case lists:keysearch(ReqId, 1, IDs0) of
 	{value, {ReqId, T, Ref}} ->
-	    Diff = timer:now_diff(erlang:now(), T),
+	    Diff = erlang:monotonic_time(micro_seconds) - T,
 	    p("SNMP error regarding outstanding request after ~w microsec:"
 	      "~n   ReqId:  ~w"
 	      "~n   Reason: ~w", [Diff, ReqId, Reason]),
@@ -187,7 +187,7 @@ handle_snmp(State, {agent, Addr, Port, SnmpInfo}) ->
 handle_snmp(#state{ids = IDs0} = S, {pdu, Addr, Port, ReqId, SnmpResponse}) ->
     case lists:keysearch(ReqId, 1, IDs0) of
 	{value, {ReqId, T, Ref}} ->
-	    Diff = timer:now_diff(erlang:now(), T),
+	    Diff = erlang:monotonic_time(micro_seconds) - T,
 	    p("SNMP pdu regarding outstanding request after ~w microsec:"
 	      "~n   ReqId:        ~w"
 	      "~n   Addr:         ~w"
diff --git a/lib/snmp/test/snmp_conf_test.erl b/lib/snmp/test/snmp_conf_test.erl
index 7f5d11c0e7..dacedf0847 100644
--- a/lib/snmp/test/snmp_conf_test.erl
+++ b/lib/snmp/test/snmp_conf_test.erl
@@ -1,7 +1,7 @@
 %% 
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2003-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2003-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -117,7 +117,7 @@ check_mandatory(Config) when is_list(Config) ->
 	  {b, mandatory}, 
 	  {d, {value, 20202}}, 
 	  {e, {value, "kalle"}}],
-    ?line {ok, L1} = verify_mandatory(A1, B1),
+    ?line {ok, _L1} = verify_mandatory(A1, B1),
     ?DBG("check_mandatory -> L1: ~p", [L1]),
     A2 = [{a, hej}, {c, 10}, {d, 10101}, {f, 10.88}],
     B2 = [{a, {value, hejsan}}, 
diff --git a/lib/snmp/test/snmp_log_test.erl b/lib/snmp/test/snmp_log_test.erl
index fb7285110f..ed71dba23f 100644
--- a/lib/snmp/test/snmp_log_test.erl
+++ b/lib/snmp/test/snmp_log_test.erl
@@ -1,7 +1,7 @@
 %% 
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2003-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2003-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -633,11 +633,11 @@ log_to_txt3(Config) when is_list(Config) ->
 	log_reader_log_to(Reader, 
 			  fun() -> 
 				  I = disk_log:info(Log),
-				  T1 = t(), 
+				  T1 = snmp_misc:now(ms),
 				  R = snmp_log:log_to_txt(Log, LogFile, Dir, 
 							  Mibs, TxtFile),
-				  T2 = t(), 
-				  io:format(user, 
+				  T2 = snmp_misc:now(ms),
+				  io:format(user,
 					    "Time converting file: ~w ms~n",
 					    [T2 - T1]),
 				  {R, I}
@@ -704,10 +704,10 @@ log_writer_start(Name, File, Size, Repair) ->
 
 log_writer_stop(Pid) ->
     Pid ! {stop, self()},
-    _T1 = t(),
+    _T1 = snmp_misc:now(ms),
     receive
 	{'EXIT', Pid, normal} ->
-	    _T2 = t(),
+	    _T2 = snmp_misc:now(ms),
 	    ?DBG("it took ~w ms to stop the writer", [_T2 - _T1]),
 	    ok
     after 60000 ->
@@ -721,10 +721,10 @@ log_writer_info(Pid) ->
 
 log_writer_sleep(Pid, Time) ->
     Pid ! {sleep, Time, self()},
-    _T1 = t(),
+    _T1 = snmp_misc:now(ms),
     receive 
 	{sleeping, Pid} ->
-	    _T2 = t(),
+	    _T2 = snmp_misc:now(ms),
 	    ?DBG("it took ~w ms to put the writer to sleep", [_T2 - _T1]),
 	    ok;
 	{'EXIT', Pid, Reason} ->
@@ -793,10 +793,10 @@ lp(F, A) ->
 
 log_reader_start() ->
     Pid = spawn_link(?MODULE, log_reader_main, [self()]),
-    _T1 = t(),
+    _T1 = snmp_misc:now(ms),
     receive 
 	{started, Pid} ->
-	    _T2 = t(),
+	    _T2 = snmp_misc:now(ms),
 	    ?DBG("it took ~w ms to start the reader", [_T2 - _T1]),
 	    {ok, Pid};
 	{'EXIT', Pid, Reason} ->
@@ -807,10 +807,10 @@ log_reader_start() ->
 
 log_reader_stop(Pid) ->
     Pid ! {stop, self()},
-    _T1 = t(),
+    _T1 = snmp_misc:now(ms),
     receive
 	{'EXIT', Pid, normal} ->
-	    _T2 = t(),
+	    _T2 = snmp_misc:now(ms),
 	    ?DBG("it took ~w ms to put the reader to eleep", [_T2 - _T1]),
 	    ok
     after 1000 ->
@@ -1124,8 +1124,3 @@ join(D, F) ->
 
 p(Case) ->
     io:format(user, "test case: ~w~n", [Case]).
-
-%% Time in milli sec
-t() ->
-    {A,B,C} = erlang:now(),
-    A*1000000000+B*1000+(C div 1000).
diff --git a/lib/snmp/test/snmp_manager_config_test.erl b/lib/snmp/test/snmp_manager_config_test.erl
index f37e957dae..ba674edce3 100644
--- a/lib/snmp/test/snmp_manager_config_test.erl
+++ b/lib/snmp/test/snmp_manager_config_test.erl
@@ -1,7 +1,7 @@
 %% 
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2004-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2004-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -2169,7 +2169,6 @@ register_usm_user_using_function(Conf) when is_list(Conf) ->
     %% --
     p("done"),
     ok.
-%%    ?SKIP(not_yet_implemented).
 
 
 %% 
@@ -2259,8 +2258,9 @@ create_and_increment(Conf) when is_list(Conf) ->
     ?line {ok, _Pid} = snmpm_config:start_link(Opts),
 
     %% Random init
-    {A,B,C} = erlang:now(),
-    random:seed(A,B,C),
+    random:seed(erlang:phash2([node()]),
+                erlang:monotonic_time(),
+                erlang:unique_integer()),
 
     StartVal = random:uniform(2147483647),
     IncVal   = 42, 
diff --git a/lib/snmp/test/snmp_test_lib.erl b/lib/snmp/test/snmp_test_lib.erl
index 5e611340a3..72c7452ec4 100644
--- a/lib/snmp/test/snmp_test_lib.erl
+++ b/lib/snmp/test/snmp_test_lib.erl
@@ -1,7 +1,7 @@
 %% 
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2002-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2002-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -30,7 +30,7 @@
 	 lookup/2, 
 	 replace_config/3, set_config/3, get_config/2, get_config/3]).
 -export([fail/3, skip/3]).
--export([millis/0, millis_diff/2, hours/1, minutes/1, seconds/1, sleep/1]).
+-export([hours/1, minutes/1, seconds/1, sleep/1]).
 -export([flush_mqueue/0, trap_exit/0, trap_exit/1]).
 -export([ping/1, local_nodes/0, nodes_on/1]).
 -export([start_node/2]).
@@ -334,14 +334,6 @@ skip(Reason, Module, Line) ->
 %% Time related function
 %% 
 
-millis() ->
-    erlang:now().
-
-millis_diff(A,B) ->
-    T1 = (element(1,A)*1000000) + element(2,A) + (element(3,A)/1000000),
-    T2 = (element(1,B)*1000000) + element(2,B) + (element(3,B)/1000000),
-    T1 - T2.
-
 hours(N)   -> trunc(N * 1000 * 60 * 60).
 minutes(N) -> trunc(N * 1000 * 60).
 seconds(N) -> trunc(N * 1000).
@@ -628,4 +620,3 @@ format_timestamp({_N1, _N2, N3} = Now) ->
         io_lib:format("~.4w:~.2.0w:~.2.0w ~.2.0w:~.2.0w:~.2.0w ~w",
                       [YYYY,MM,DD,Hour,Min,Sec,round(N3/1000)]),
     lists:flatten(FormatDate).
-
diff --git a/lib/snmp/test/snmp_test_lib.hrl b/lib/snmp/test/snmp_test_lib.hrl
index 9b7609b831..fd584880da 100644
--- a/lib/snmp/test/snmp_test_lib.hrl
+++ b/lib/snmp/test/snmp_test_lib.hrl
@@ -1,8 +1,8 @@
-%%<copyright>
-%% <year>2002-2014</year>
-%% <holder>Ericsson AB, All Rights Reserved</holder>
-%%</copyright>
-%%<legalnotice>
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2002-2015. All Rights Reserved.
+%%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
 %% compliance with the License. You should have received a copy of the
@@ -15,7 +15,7 @@
 %% under the License.
 %%
 %% The Initial Developer of the Original Code is Ericsson AB.
-%%</legalnotice>
+%% %CopyrightEnd%
 %%
 %%----------------------------------------------------------------------
 %% Purpose: Define common macros for testing
@@ -73,8 +73,6 @@
 -endif.
 
 -define(SLEEP(MSEC),    snmp_test_lib:sleep(MSEC)).
--define(M(),            snmp_test_lib:millis()).
--define(MDIFF(A,B),     snmp_test_lib:millis_diff(A,B)).
 
 %% - Process utility macros - 
 
@@ -149,4 +147,3 @@
 
 -define(PRINT(P,F,A),
 	snmp_test_lib:print(P,?MODULE,?LINE,F,A)).
-
diff --git a/lib/snmp/test/snmp_test_mgr.erl b/lib/snmp/test/snmp_test_mgr.erl
index 8cb6ec588e..1bf7efc695 100644
--- a/lib/snmp/test/snmp_test_mgr.erl
+++ b/lib/snmp/test/snmp_test_mgr.erl
@@ -1,7 +1,7 @@
 %% 
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -188,8 +188,9 @@ receive_trap(Timeout) ->
 init({Options, CallerPid}) ->
     put(sname,     mgr),
     put(verbosity, debug), 
-    {A1,A2,A3} = erlang:now(),
-    random:seed(A1,A2,A3),
+    random:seed(erlang:phash2([node()]),
+                erlang:monotonic_time(),
+                erlang:unique_integer()),
     case (catch is_options_ok(Options)) of
 	true ->
 	    put(debug, get_value(debug, Options, false)),
@@ -1135,4 +1136,3 @@ d(_,_F,_A) ->
 
 formated_timestamp() ->
     snmp_test_lib:formated_timestamp().
-
diff --git a/lib/snmp/vsn.mk b/lib/snmp/vsn.mk
index 67adf0a34f..14da37a225 100644
--- a/lib/snmp/vsn.mk
+++ b/lib/snmp/vsn.mk
@@ -18,6 +18,6 @@
 # %CopyrightEnd%
 
 APPLICATION = snmp
-SNMP_VSN    = 5.1.2
+SNMP_VSN    = 5.2
 PRE_VSN     =
 APP_VSN     = "$(APPLICATION)-$(SNMP_VSN)$(PRE_VSN)"
diff --git a/lib/ssh/doc/src/introduction.xml b/lib/ssh/doc/src/introduction.xml
index b42910cb34..1efbc16016 100644
--- a/lib/ssh/doc/src/introduction.xml
+++ b/lib/ssh/doc/src/introduction.xml
@@ -25,31 +25,181 @@
 
     <title>Introduction</title>
     <prepared>OTP team</prepared>
+    <responsible></responsible>
+    <docno></docno>
+    <approved></approved>
+    <checked></checked>
+    <date></date>
+    <rev></rev>
     <file>introduction.xml</file>
   </header>
-
+  <p>SSH is a protocol for secure remote logon and
+    other secure network services over an insecure network.</p>
   <section>
-    <title>Purpose</title>
+    <title>Scope and Purpose</title>
 
-    <p>Secure Shell (SSH) is a protocol for secure remote login and
-    other secure network services over an insecure network. SSH
-    provides a single, full-duplex, byte-oriented connection between
+    <p>SSH provides a single, full-duplex, and byte-oriented connection between
     client and server. The protocol also provides privacy, integrity,
-    server authentication and man-in-the-middle protection.</p>
-
-    <p>The Erlang SSH application is an implementation of the SSH
-    protocol in Erlang which offers API functions to write customized
-    SSH clients and servers as well as making the Erlang shell
-    available via SSH. Also included in the SSH application are an
-    SFTP (SSH File Transfer Protocol) client <seealso
-    marker="ssh_sftp">ssh_sftp</seealso> and server <seealso
-    marker="ssh_sftp">ssh_sftpd</seealso>.</p>
+    server authentication, and man-in-the-middle protection.</p>
+
+    <p>The <c>ssh</c> application is an implementation of the SSH Transport, Connection and Authentication
+    Layer Protocols in Erlang. It provides the following:</p>
+    <list type="bulleted">
+      <item>API functions to write customized SSH clients and servers applications</item>
+      <item>The Erlang shell available over SSH</item>
+      <item>An SFTP client (<seealso marker="ssh_sftp">ssh_sftp</seealso>)
+      and server (<seealso marker="ssh_sftp">ssh_sftpd</seealso>)</item>
+    </list>
   </section>
 
   <section>
     <title>Prerequisites</title>
-    <p>It is assumed that the reader is familiar with the concepts of <seealso marker="doc/design_principles:des_princ">OTP</seealso>
-    and has a basic understanding of <url href="http://en.wikipedia.org/wiki/Public-key_cryptography">public keys</url>.</p>
+    <p>It is assumed that the reader is familiar with the Erlang programming language,
+    concepts of <em>OTP</em>, and has a basic understanding of <em>public keys</em>.</p>
+  </section>
+
+<section>
+    <title>SSH Protocol Overview</title>
+
+    <p>Conceptually, the SSH protocol can be partitioned into four
+    layers:</p>
+
+    <image file="SSH_protocols.png">
+      <icaption>SSH Protocol Architecture</icaption>
+    </image>
+
+    <section>
+      <title>Transport Protocol</title>
+
+      <p>The SSH Transport Protocol is a secure, low-level transport.
+      It provides strong encryption, cryptographic host
+      authentication, and integrity protection. A minimum of
+      Message Authentication Code (MAC) and encryption
+      algorithms are supported. For details, see the
+      <seealso marker="ssh">ssh(3)</seealso> manual page in <c>ssh</c>.</p>
+    </section>
+
+    <section>
+      <title>Authentication Protocol</title>
+
+      <p>The SSH Authentication Protocol is a general-purpose user
+      authentication protocol run over the SSH Transport Layer
+      Protocol. The <c>ssh</c> application supports user authentication as follows:
+      </p>
+      <list type="bulleted">
+	<item>
+	  Using public key technology. RSA and DSA, X509-certificates
+	  are not supported.
+	</item>
+	<item>
+	  Using keyboard-interactive authentication.
+	  This is suitable for interactive authentication methods
+	  that do not need any special software support on the client side.
+	  Instead, all authentication data is entered from the keyboard.
+	</item>
+	<item>
+	  Using a pure password-based authentication scheme.
+	  Here, the plain text password is encrypted before sent
+	  over the network.
+	</item>
+      </list>
+      <p>Several configuration options for
+      authentication handling are available in
+      <seealso marker="ssh#connect-3">ssh:connect/[3,4]</seealso>
+      and <seealso marker="ssh#daemon-2">ssh:daemon/[2,3]</seealso>.</p>
+      <p>
+      The public key handling can be customized by implementing
+      the following behaviours from <c>ssh</c>:</p>
+      <list type="bulleted">
+	<item>Module
+      <seealso marker="ssh_client_key_api">ssh_client_key_api</seealso>.
+	</item>
+	<item>Module
+      <seealso marker="ssh_server_key_api">ssh_server_key_api</seealso>.
+	</item>
+      </list>
+    </section>
+
+    <section>
+      <title>Connection Protocol</title>
+
+      <p>The SSH Connection Protocol provides application-support
+      services over the transport pipe, for example, channel multiplexing,
+      flow control, remote program execution, signal propagation, and
+      connection forwarding. Functions for handling the SSH
+      Connection Protocol can be found in the module <seealso
+      marker="ssh_connection">ssh_connection</seealso> in <c>ssh</c>.
+      </p>
+    </section>
+
+    <section>
+      <title>Channels</title>
+
+      <p>All terminal sessions, forwarded connections, and so on, are
+      channels. Multiple channels are multiplexed into a single
+      connection. All channels are flow-controlled. This means that no
+      data is sent to a channel peer until a message is received to
+      indicate that window space is available.
+      The <em>initial window size</em> specifies how many bytes of channel
+      data that can be sent to the channel peer without adjusting the
+      window. Typically, an SSH client opens a channel, sends data (commands),
+      receives data (control information), and then closes the channel.
+      The <seealso marker="ssh_channel">ssh_channel</seealso> behaviour
+      handles generic parts of SSH channel management. This makes it easy
+      to write your own SSH client/server processes that use flow-control
+      and thus opens for more focus on the application logic.
+      </p>
+
+      <p>Channels come in the following three flavors:</p>
+
+      <list type="bulleted">
+	<item><em>Subsystem</em> - Named services that can be run as
+	part of an SSH server, such as SFTP <seealso
+	marker="ssh_sftpd">(ssh_sftpd)</seealso>, that is built into the
+	SSH daemon (server) by default, but it can be disabled. The Erlang <c>ssh</c>
+	daemon can be configured to run any Erlang-
+	implemented SSH subsystem.
+	</item>
+	<item><em>Shell</em> - Interactive shell. By default the
+	Erlang daemon runs the Erlang shell. The shell can be customized by
+	providing your own read-eval-print loop. You can also provide your
+	own Command-Line Interface (CLI) implementation,
+	but that is much more work.
+	</item>
+	<item><em>Exec</em> - One-time remote execution of commands. See function
+	<seealso marker="ssh_connection#exec-4">ssh_connection:exec/4</seealso>
+	for more information.</item>
+      </list>
+    </section>
+
+
+
   </section>
 
+  <section>
+    <title>Where to Find More Information</title>
+    <p>
+      For detailed information about the SSH protocol, refer to the
+      following Request for Comments(RFCs):
+    </p>
+
+    <list type="bulleted">
+      <item><url href="http://www.ietf.org/rfc/rfc4250.txt">RFC 4250</url> -
+      Protocol Assigned Numbers</item>
+      <item><url href="http://www.ietf.org/rfc/rfc4251.txt">RFC 4251</url> -
+      Protocol Architecture</item>
+      <item><url href="http://www.ietf.org/rfc/rfc4252.txt">RFC 4252</url> -
+      Authentication Protocol</item>
+      <item><url href="http://www.ietf.org/rfc/rfc4253.txt">RFC 4253</url> -
+      Transport Layer Protocol</item>
+      <item><url href="http://www.ietf.org/rfc/rfc4254.txt">RFC 4254</url> -
+      Connection Protocol</item>
+      <item><url href="http://www.ietf.org/rfc/rfc4255.txt">RFC 4255</url> -
+      Key Fingerprints</item>
+      <item><url href="http://www.ietf.org/rfc/rfc4344.txt">RFC 4344</url> -
+      Transport Layer Encryption Modes</item>
+      <item><url href="http://www.ietf.org/rfc/rfc4716.txt">RFC 4716</url> -
+      Public Key File Format</item>
+    </list>
+  </section>
 </chapter>
diff --git a/lib/ssh/doc/src/ref_man.xml b/lib/ssh/doc/src/ref_man.xml
index 55339298e8..afe3f2ddf9 100644
--- a/lib/ssh/doc/src/ref_man.xml
+++ b/lib/ssh/doc/src/ref_man.xml
@@ -28,8 +28,8 @@
     <file>ref_man.xml</file>
   </header>
   <description>
-    <p>The SSH application is an erlang implementation of the
-      secure shell protocol (SSH) as defined by RFC 4250 - 4254</p>
+    <p>The <c>ssh</c> application is an Erlang implementation of the
+      Secure Shell Protocol (SSH) as defined by RFC 4250 - 4254.</p>
 
   </description>
   <xi:include href="ssh_app.xml"/>
diff --git a/lib/ssh/doc/src/ssh.xml b/lib/ssh/doc/src/ssh.xml
index 501668ca78..5edd790400 100644
--- a/lib/ssh/doc/src/ssh.xml
+++ b/lib/ssh/doc/src/ssh.xml
@@ -22,54 +22,85 @@
     </legalnotice>
     
     <title>ssh</title>
+    <prepared></prepared>
+    <docno></docno>
     <date>2007-10-06</date>
+    <rev></rev>
   </header>
   <module>ssh</module>
-  <modulesummary>Main API of the SSH application</modulesummary>
+  <modulesummary>Main API of the ssh application</modulesummary>
   <description>
-    <p>Interface module for the SSH application. </p>
+    <p>Interface module for the <c>ssh</c> application.</p>
   </description>
 
    <section>
     <title>SSH</title>
-
+    <marker id="supported"/>
     <list type="bulleted">
-      <item>SSH requires the crypto and public_key applications.</item>
-      <item>Supported SSH version is 2.0 </item>
-      <item>Supported MAC algorithms: hmac-sha2-256 and hmac-sha1</item>
-      <item>Supported encryption algorithms: aes128-ctr, aes128-cb and 3des-cbc</item>
-      <item>Supports unicode filenames if the emulator and the underlaying OS supports it. See the DESCRIPTION section in <seealso marker="kernel:file">file</seealso> for information about this subject</item>
-      <item>Supports unicode in shell and cli</item>
+      <item>For application dependencies see <seealso marker="SSH_app"> ssh(6)</seealso> </item>
+      <item>Supported SSH version is 2.0.</item>
+      <item>Supported public key algorithms: ssh-rsa and ssh-dss.</item>
+      <item>Supported MAC algorithms: hmac-sha2-256 and hmac-sha1.</item>
+      <item>Supported encryption algorithms: aes128-ctr, aes128-cb and 3des-cbc.</item>
+      <item>Supported key exchange algorithms: diffie-hellman-group1-sha1.</item>
+      <item>Supported compression algorithms: none, zlib, [email protected],</item>
+      <item>Supports unicode filenames if the emulator and the underlaying OS support it.
+      See section DESCRIPTION in the
+      <seealso marker="kernel:file">file</seealso> manual page in <c>kernel</c>
+      for information about this subject.</item>
+      <item>Supports unicode in shell and CLI.</item>
     </list>
  
   </section>
   
   <section>
-    <title>DATA TYPES </title>
+    <title>DATA TYPES</title>
     <p>Type definitions that are used more than once in
-    this module and/or abstractions to indicate the intended use of the data
-    type:</p>
-    <p><c>boolean() = true | false </c></p>
-    <p><c>string() = [byte()]</c></p>
-    <p><c>ssh_daemon_ref() - opaque to the user
-    returned by ssh:daemon/[1,2,3]</c></p>
-    <p><c>ssh_connection_ref() - opaque to the user
-    returned by ssh:connect/3</c></p>
-    <p><c>ip_address() - inet::ip_address()</c></p>
-    <p><c>subsystem_spec() = {subsystem_name(),
-    {channel_callback(), channel_init_args()}} </c></p>
-    <p><c>subsystem_name() = string() </c></p>
-    <p><c>channel_callback() = atom() - Name of the erlang module
-    implementing the subsystem using the ssh_channel behavior see</c>
-    <seealso marker="ssh_channel">ssh_channel(3)</seealso></p>
-    <p><c>channel_init_args() = list()</c></p>
- </section>
+    this module, or abstractions to indicate the intended use of the data
+    type, or both:</p>
+    <taglist>
+      <tag><c>boolean() =</c></tag>
+      <item><p><c>true | false</c></p></item>
+      <tag><c>string() =</c></tag>
+      <item><p><c>[byte()]</c></p></item>
+      <tag><c>ssh_daemon_ref() =</c></tag>
+      <item><p>opaque() -
+      as returned by <c>ssh:daemon/[1,2,3]</c></p></item>
+      <tag><c>ssh_connection_ref() =</c></tag>
+      <item><p>opaque() - as returned by <c>ssh:connect/3</c></p></item>
+      <tag><c>ip_address() =</c></tag>
+      <item><p><c>inet::ip_address</c></p></item>
+      <tag><c>subsystem_spec() =</c></tag>
+      <item><p><c>{subsystem_name(),
+      {channel_callback(), channel_init_args()}}</c></p></item>
+      <tag><c>subsystem_name() =</c></tag>
+      <item><p><c>string()</c></p></item>
+      <tag><c>channel_callback() =</c></tag>
+      <item><p><c>atom()</c> - Name of the Erlang module
+      implementing the subsystem using the <c>ssh_channel</c> behavior, see
+      <seealso marker="ssh_channel">ssh_channel(3)</seealso></p></item>
+      <tag><c>channel_init_args() =</c></tag>
+      <item><p><c>list()</c></p></item>
+
+      <tag><c>algs_list() =</c></tag>
+      <item><p><c>list( alg_entry() )</c></p></item>
+
+      <tag><c>alg_entry() =</c></tag>
+      <item><p><c>{kex, simple_algs()} | {public_key, simple_algs()} | {cipher, double_algs()} | {mac, double_algs()} | {compression, double_algs()}</c></p></item>
+
+      <tag><c>simple_algs() =</c></tag>
+      <item><p><c>list( atom() )</c></p></item>
+      
+      <tag><c>double_algs() =</c></tag>
+      <item><p><c>[{client2serverlist,simple_algs()},{server2client,simple_algs()}] | simple_algs()</c></p></item>
+     </taglist>
+</section>
 
  <funcs>
    
    <func>
      <name>close(ConnectionRef) -> ok </name>
-      <fsummary>Closes an SSH connection</fsummary>
+      <fsummary>Closes an SSH connection.</fsummary>
       <type>
 	<v>ConnectionRef = ssh_connection_ref()</v>
       </type>
@@ -81,104 +112,155 @@
       <name>connect(Host, Port, Options) -> </name>
       <name>connect(Host, Port, Options, Timeout) -> {ok,
       ssh_connection_ref()} | {error, Reason}</name>
-      <fsummary>Connect to an ssh server.</fsummary>
+      <fsummary>Connects to an SSH server.</fsummary>
       <type>
         <v>Host = string()</v>
 	<v>Port = integer()</v>
-	<d>The default is <c><![CDATA[22]]></c>, the assigned well known port
+	<d><c><![CDATA[22]]></c> is default, the assigned well-known port
 	number for SSH.</d>
 	<v>Options = [{Option, Value}]</v>
-	<v>Timeout = infinity | integer(milliseconds)</v>
-	<d>Negotiation timeout, for connection timeout use the option <c>{connect_timeout, timeout()}</c>.</d>
+	<v>Timeout = infinity | integer()</v>
+	<d>Negotiation time-out in milli-seconds. The default value is <c>infinity</c>.
+	For connection time-out, use option <c>{connect_timeout, timeout()}</c>.</d>
       </type>
       <desc>
 	<p>Connects to an SSH server. No channel is started. This is done
 	by calling
-	<seealso marker="ssh_connection#session_channel/2">ssh_connection:session_channel/[2, 4]</seealso>.</p>
-	<p>Options are:</p>
+	<seealso marker="ssh_connection#session_channel/2">
+	ssh_connection:session_channel/[2, 4]</seealso>.</p>
+	<p>Options:</p>
 	<taglist>
 	  <tag><c><![CDATA[{inet, inet | inet6}]]></c></tag>
-	  <item> IP version to use.</item>
+	  <item>
+	  <p>IP version to use.</p>
+	  </item>
           <tag><c><![CDATA[{user_dir, string()}]]></c></tag>
 	  <item>
-	    <p>Sets the user directory i.e. the directory containing
-	    ssh configuration files for the user such as
+	    <p>Sets the user directory, that is, the directory containing
+	    <c>ssh</c> configuration files for the user, such as
 	    <c><![CDATA[known_hosts]]></c>, <c><![CDATA[id_rsa,
-	    id_dsa]]></c> and
+	    id_dsa]]></c>, and
 	    <c><![CDATA[authorized_key]]></c>. Defaults to the
 	    directory normally referred to as
-	    <c><![CDATA[~/.ssh]]></c> </p>
+	    <c><![CDATA[~/.ssh]]></c>.</p>
 	  </item>
 	  <tag><c><![CDATA[{dsa_pass_phrase, string()}]]></c></tag>
 	  <item>
-	    <p>If the user dsa key is protected by a passphrase it can be
+	    <p>If the user DSA key is protected by a passphrase, it can be
 	    supplied with this option.
 	    </p>
 	  </item>
 	  <tag><c><![CDATA[{rsa_pass_phrase, string()}]]></c></tag>
 	  <item>
-	    <p>If the user rsa key is protected by a passphrase it can be
+	    <p>If the user RSA key is protected by a passphrase, it can be
 	    supplied with this option.
 	    </p>
 	  </item>
           <tag><c><![CDATA[{silently_accept_hosts, boolean()}]]></c></tag>
 	  <item>
-	    <p>When true hosts are added to the
+	    <p>When <c>true</c>, hosts are added to the
 	    file <c><![CDATA[known_hosts]]></c> without asking the user.
-	    Defaults to false.
+	    Defaults to <c>false</c>.
 	    </p>
 	  </item>
 	  <tag><c><![CDATA[{user_interaction, boolean()}]]></c></tag>
 	  <item>
-	    <p>If false disables the client to connect to the server
-	    if any user interaction is needed such as accepting that
-	    the server will be added to the <c>known_hosts</c> file or
-	    supplying a password. Defaults to true.
+	    <p>If <c>false</c>, disables the client to connect to the server
+	    if any user interaction is needed, such as accepting
+	    the server to be added to the <c>known_hosts</c> file, or
+	    supplying a password. Defaults to <c>true</c>.
 	    Even if user interaction is allowed it can be
-	    suppressed by other options such as silently_accept_hosts and
-	    password. Do note that it may not always be desirable to use
-	    those options from a security point of view.</p>
+	    suppressed by other options, such as <c>silently_accept_hosts</c>
+	    and <c>password</c>. However, those optins are not always desirable
+	    to use from a security point of view.</p>
+	  </item>
+
+	  <tag><c><![CDATA[{disconnectfun, fun(Reason:term()) -> _}]]></c></tag>
+	  <item>
+	    <p>Provides a fun to implement your own logging when a server disconnects the client.</p>
 	  </item>
+
 	  <tag><c><![CDATA[{public_key_alg, 'ssh-rsa' | 'ssh-dss'}]]></c></tag>
 	  <item>
+	    <note>
+	      <p>This option is kept for compatibility. It is ignored if the <c>preferred_algorithms</c>
+	      option is used. The equivalence of <c>{public_key_alg,'ssh-dss'}</c> is 
+	      <c>{preferred_algorithms, [{public_key,['ssh-dss','ssh-rsa']}]}</c>.</p>
+	    </note>
             <p>Sets the preferred public key algorithm to use for user
-	    authentication. If the the preferred algorithm fails for
-	    some reason, the other algorithm is tried. The  default is
+	    authentication. If the preferred algorithm fails,
+	    the other algorithm is tried. The default is
 	    to try <c><![CDATA['ssh-rsa']]></c> first.</p>
 	  </item>
+
 	  <tag><c><![CDATA[{pref_public_key_algs, list()}]]></c></tag>
 	  <item>
-            <p>List of public key algorithms to try to use, 'ssh-rsa' and 'ssh-dss' available. 
-	    Will override <c><![CDATA[{public_key_alg, 'ssh-rsa' | 'ssh-dss'}]]></c></p>
+	    <note>
+	      <p>This option is kept for compatibility. It is ignored if the <c>preferred_algorithms</c>
+	      option is used. The equivalence of <c>{pref_public_key_algs,['ssh-dss']}</c> is 
+	      <c>{preferred_algorithms, [{public_key,['ssh-dss']}]}</c>.</p>
+	    </note>
+            <p>List of public key algorithms to try to use.
+	    <c>'ssh-rsa'</c> and <c>'ssh-dss'</c> are available.
+	    Overrides <c><![CDATA[{public_key_alg, 'ssh-rsa' | 'ssh-dss'}]]></c></p>
+	  </item>
+
+	  <tag><c><![CDATA[{preferred_algorithms, algs_list()}]]></c></tag>
+	  <item>
+            <p>List of algorithms to use in the algorithm negotiation. The default <c>algs_list()</c> can
+	    be obtained from <seealso marker="#default_algorithms/0">default_algorithms/0</seealso>.
+	    </p>
+	    <p>Here is an example of this option:</p>
+	<code>
+{preferred_algorithms, 
+ [{public_key,['ssh-rsa','ssh-dss']},
+  {cipher,[{client2server,['aes128-ctr']},
+           {server2client,['aes128-cbc','3des-cbc']}]},
+  {mac,['hmac-sha2-256','hmac-sha1']},
+  {compression,[none,zlib]}
+}
+</code>
+        <p>The example specifies different algorithms in the two directions (client2server and server2client), for cipher but specifies the same
+algorithms for mac and compression in both directions. The kex (key exchange) and public key algorithms are set to their default values,
+kex is implicit but public_key is set explicitly.</p>
+
+        <warning>
+	  <p>Changing the values can make a connection less secure. Do not change unless you
+	  know exactly what you are doing. If you do not understand the values then you
+	  are not supposed to change them.</p>
+	</warning>
 	  </item>
+
 	  <tag><c><![CDATA[{connect_timeout, timeout()}]]></c></tag>
 	  <item>
-	    <p>Sets a timeout on the transport layer
-	    connection. Defaults to <c>infinity</c>.</p>
+	    <p>Sets a time-out on the transport layer
+	    connection. For <c>gen_tcp</c> the time is in milli-seconds and the default value is
+	    <c>infinity</c>.</p>
 	  </item>
 	  <tag><c><![CDATA[{user, string()}]]></c></tag>
           <item>
-	    <p>Provides a user name. If this option is not given, ssh
+	    <p>Provides a username. If this option is not given, <c>ssh</c>
 	    reads from the environment (<c><![CDATA[LOGNAME]]></c> or
-	    <c><![CDATA[USER]]></c> on unix,
+	    <c><![CDATA[USER]]></c> on UNIX,
 	    <c><![CDATA[USERNAME]]></c> on Windows).</p>
           </item>
 	  <tag><c><![CDATA[{password, string()}]]></c></tag>
           <item>
-	    <p>Provide a password for password authentication.  If
-	    this option is not given, the user will be asked for a
-	    password if the password authentication method is
+	    <p>Provides a password for password authentication.
+	    If this option is not given, the user is asked for a
+	    password, if the password authentication method is
 	    attempted.</p>
           </item>
 	  <tag><c><![CDATA[{key_cb, atom()}]]></c></tag>
 	  <item>
-	    <p>Module implementing the behaviour <seealso marker="ssh_client_key_api">ssh_client_key_api</seealso>.
+	    <p>Module implementing the behaviour
+	    <seealso marker="ssh_client_key_api">ssh_client_key_api</seealso>.
 	    Can be used to customize the handling of public keys.
 	    </p>
 	  </item>
 	  <tag><c><![CDATA[{quiet_mode, atom() = boolean()}]]></c></tag>
 	  <item>
-	    <p>If true, the client will not print out anything on authorization.</p>
+	    <p>If <c>true</c>, the client does not print anything on authorization.</p>
 	  </item>
 
 	  <tag><c><![CDATA[{id_string, random | string()}]]></c></tag>
@@ -191,17 +273,17 @@
 
 	  <tag><c><![CDATA[{fd, file_descriptor()}]]></c></tag>
 	  <item>
-	    <p>Allow an existing file descriptor to be used
-	  (simply passed on to the transport protocol).</p></item>
+	    <p>Allows an existing file descriptor to be used
+	  (by passing it on to the transport protocol).</p></item>
 	  <tag><c><![CDATA[{rekey_limit, integer()}]]></c></tag>
 	  <item>
-	    <p>Provide, in bytes, when rekeying should be initiated, 
-	    defaults to one time each GB and one time per hour.</p>
+	    <p>Provides, in bytes, when rekeying is to be initiated.
+	    Defaults to once per each GB and once per hour.</p>
 	  </item>
 	  <tag><c><![CDATA[{idle_time, integer()}]]></c></tag>
 	  <item>
- 	  <p>Sets a timeout on connection when no channels are active, default is infinity</p></item>
-
+	  <p>Sets a time-out on a connection when no channels are active.
+	  Defaults to <c>infinity</c>.</p></item>
 	  <tag><c><![CDATA[{ssh_msg_debug_fun, fun(ConnectionRef::ssh_connection_ref(), AlwaysDisplay::boolean(), Msg::binary(), LanguageTag::binary()) -> _}]]></c></tag>
 	  <item>
 	    <p>Provide a fun to implement your own logging of the SSH message SSH_MSG_DEBUG. The last three parameters are from the message, see RFC4253, section 11.3. The <c>ConnectionRef</c> is the reference to the connection on which the message arrived. The return value from the fun is not checked.</p>
@@ -215,18 +297,17 @@
 
     <func>
       <name>connection_info(ConnectionRef, [Option]) ->[{Option,
-      Value}] </name>
-      <fsummary> Retrieves information about a connection. </fsummary>
+      Value}]</name>
+      <fsummary>Retrieves information about a connection.</fsummary>
       <type>
         <v>Option = client_version | server_version | user | peer | sockname </v>
 	<v>Value = [option_value()] </v>
-	<v>option_value() = {{Major::integer(), Minor::integer()}, VersionString::string()} | User::string() |
-	Peer::{inet:hostname(), {inet::ip_adress(), inet::port_number()}} |
-	Sockname::{inet::ip_adress(), inet::port_number()} () </v>
+	<v>option_value() = {{Major::integer(), Minor::integer()}, VersionString::string()} |
+	User::string() |  Peer::{inet:hostname(), {inet::ip_adress(), inet::port_number()}} |
+	Sockname::{inet::ip_adress(), inet::port_number()}</v>
       </type>
       <desc>
-        <p> Retrieves information about a connection. 
-	</p>
+        <p>Retrieves information about a connection.</p>
       </desc>
     </func>
     
@@ -247,111 +328,168 @@
       <desc>
         <p>Starts a server listening for SSH connections on the given
         port.</p>
-	<p>Options are:</p>
+	<p>Options:</p>
         <taglist>
 	  <tag><c><![CDATA[{inet, inet | inet6}]]></c></tag>
-	  <item> IP version to use when the host address is specified as <c>any</c>. </item>
+	  <item><p>IP version to use when the host address is specified as <c>any</c>.</p></item>
 	  <tag><c><![CDATA[{subsystems, [subsystem_spec()]}]]></c></tag>
 	  <item>
-	    Provides specifications for handling of subsystems. The
-	    "sftp" subsystem spec can be retrieved by calling
-	    ssh_sftpd:subsystem_spec/1. If the subsystems option is
-	    not present the value of
-	    <c>[ssh_sftpd:subsystem_spec([])]</c> will be used.  It is
-	    of course possible to set the option to the empty list if
-	    you do not want the daemon to run any subsystems at all.
+	    <p>Provides specifications for handling of subsystems. The
+	    "sftp" subsystem specification is retrieved by calling
+	    <c>ssh_sftpd:subsystem_spec/1</c>. If the subsystems option is
+	    not present, the value of
+	    <c>[ssh_sftpd:subsystem_spec([])]</c> is used.
+	    The option can be set to the empty list if
+	    you do not want the daemon to run any subsystems.</p>
 	  </item>
 	  <tag><c><![CDATA[{shell, {Module, Function, Args} |
 	  fun(string() = User) - > pid() | fun(string() = User,
 	  ip_address() = PeerAddr) -> pid()}]]></c></tag>
 	  <item>
-	    Defines the read-eval-print loop used when a shell is
-	    requested by the client. Default is to use the erlang shell:
-	    <c><![CDATA[{shell, start, []}]]></c>
+	    <p>Defines the read-eval-print loop used when a shell is
+	    requested by the client. The default is to use the Erlang shell:
+	    <c><![CDATA[{shell, start, []}]]></c></p>
 	  </item>
 	  <tag><c><![CDATA[{ssh_cli, {channel_callback(),
 	  channel_init_args()} | no_cli}]]></c></tag>
 	  <item>
-	    Provides your own CLI implementation, i.e. a channel callback
-	    module that implements a shell and command execution. Note
-	    that you may customize the shell read-eval-print loop using the
-	    option <c>shell</c> which is much less work than implementing
-	    your own CLI channel. If set to  <c>no_cli</c> you will disable
-	    CLI channels and only subsystem channels will be allowed.
+	    <p>Provides your own CLI implementation, that is, a channel callback
+	    module that implements a shell and command execution. The shell
+	    read-eval-print loop can be customized, using the
+	    option <c>shell</c>. This means less work than implementing
+	    an own CLI channel. If set to <c>no_cli</c>, the CLI channels
+	    are disabled and only subsystem channels are allowed.</p>
 	  </item>
-	  <tag><c><![CDATA[{user_dir, String}]]></c></tag>
+	  <tag><c><![CDATA[{user_dir, string()}]]></c></tag>
 	  <item>
-	    <p>Sets the user directory i.e. the directory containing
-	    ssh configuration files for the user such as
+	    <p>Sets the user directory. That is, the directory containing
+	    <c>ssh</c> configuration files for the user, such as
 	    <c><![CDATA[known_hosts]]></c>, <c><![CDATA[id_rsa,
-	    id_dsa]]></c> and
+	    id_dsa]]></c>, and
 	    <c><![CDATA[authorized_key]]></c>. Defaults to the
 	    directory normally referred to as
-	    <c><![CDATA[~/.ssh]]></c> </p>
+	    <c><![CDATA[~/.ssh]]></c>.</p>
 	  </item>
           <tag><c><![CDATA[{system_dir, string()}]]></c></tag>
           <item>
             <p>Sets the system directory, containing the host key files
-            that identifies the host keys for ssh. The default is
-            <c><![CDATA[/etc/ssh]]></c>, note that for security reasons
-            this directory is normally only accessible by the root user.</p>
+            that identify the host keys for <c>ssh</c>. Defaults to
+            <c><![CDATA[/etc/ssh]]></c>. For security reasons,
+            this directory is normally accessible only to the root user.</p>
 	  </item>
+
 	  <tag><c><![CDATA[{auth_methods, string()}]]></c></tag>
 	  <item>
-	    <p>Comma separated string that determines which
-	    authentication methodes that the server should support and
-	    in what order they will be tried. Defaults to
+	    <p>Comma-separated string that determines which
+	    authentication methods that the server is to support and
+	    in what order they are tried. Defaults to
 	    <c><![CDATA["publickey,keyboard-interactive,password"]]></c></p>
           </item>
+
+	  <tag><c><![CDATA[{auth_method_kb_interactive_data, PromptTexts}]]>
+	  <br/>where:
+	  <br/>PromptTexts = kb_int_tuple()  | fun(PeerName::string(), User::string(), Service::string()) ->  kb_int_tuple()
+	  <br/>kb_int_tuple() = {Name::string(), Instruction::string(), Prompt::string(), Echo::boolean()}</c>
+	  </tag>
+	  <item>
+	    <p>Sets the text strings that the daemon sends to the client for presentation to the user when using <c>keyboar-interactive</c> authentication. If the fun/3 is used, it is called when the actual authentication occurs and may therefore return dynamic data like time, remote ip etc.</p>
+	    <p>The parameter <c>Echo</c> guides the client about need to hide the password.</p>
+	    <p>The default value is:
+	    <c>{auth_method_kb_interactive_data, {"SSH server", "Enter password for \""++User++"\"", "pwd: ", false}></c></p>
+          </item>
+
 	  <tag><c><![CDATA[{user_passwords, [{string() = User,
 	  string() = Password}]}]]></c></tag>
 	  <item>
-            <p>Provide passwords for password authentication.They will
-	    be used when someone tries to connect to the server and
-	    public key user authentication fails. The option provides
-	    a list of valid user names and the corresponding password.
+            <p>Provides passwords for password authentication. The passwords
+	    are used when someone tries to connect to the server and
+	    public key user-authentication fails. The option provides
+	    a list of valid usernames and the corresponding passwords.
 	    </p>
           </item>
           <tag><c><![CDATA[{password, string()}]]></c></tag>
           <item>
-            <p>Provide a global password that will authenticate any
+            <p>Provides a global password that authenticates any
               user. From a security perspective this option makes
 	      the server very vulnerable.</p>
 	  </item>
+
+	  <tag><c><![CDATA[{preferred_algorithms, algs_list()}]]></c></tag>
+	  <item>
+            <p>List of algorithms to use in the algorithm negotiation. The default <c>algs_list()</c> can
+	    be obtained from <seealso marker="#default_algorithms/0">default_algorithms/0</seealso>.
+	    </p>
+	    <p>Here is an example of this option:</p>
+	<code>
+{preferred_algorithms, 
+ [{public_key,['ssh-rsa','ssh-dss']},
+  {cipher,[{client2server,['aes128-ctr']},
+           {server2client,['aes128-cbc','3des-cbc']}]},
+  {mac,['hmac-sha2-256','hmac-sha1']},
+  {compression,[none,zlib]}
+}
+</code>
+        <p>The example specifies different algorithms in the two directions (client2server and server2client), for cipher but specifies the same
+algorithms for mac and compression in both directions. The kex (key exchange) and public key algorithms are set to their default values,
+kex is implicit but public_key is set explicitly.</p>
+
+        <warning>
+	  <p>Changing the values can make a connection less secure. Do not change unless you
+	  know exactly what you are doing. If you do not understand the values then you
+	  are not supposed to change them.</p>
+	</warning>
+	  </item>
+
 	  <tag><c><![CDATA[{pwdfun, fun(User::string(), password::string()) -> boolean()}]]></c></tag>
 	  <item>
-	    <p>Provide a function for password validation. This is called
-	      with user and password as strings, and should return
+	    <p>Provides a function for password validation. This function is called
+	      with user and password as strings, and returns
 	      <c><![CDATA[true]]></c> if the password is valid and
 	      <c><![CDATA[false]]></c> otherwise.</p>
 	  </item>
 
 	  <tag><c><![CDATA[{negotiation_timeout, integer()}]]></c></tag>
 	  <item>
-	    <p>Max time in milliseconds for the authentication negotiation.  The default value is 2 minutes. If the client fails to login within this time, the connection is closed.
+	    <p>Maximum time in milliseconds for the authentication negotiation.
+	    Defaults to 120000 (2 minutes). If the client fails to log in within this time,
+	    the connection is closed.
 	    </p>
 	  </item>
 
 	  <tag><c><![CDATA[{max_sessions, pos_integer()}]]></c></tag>
 	  <item>
-	    <p>The maximum number of simultaneous sessions that are accepted at any time for this daemon.  This includes sessions that are being authorized.  So if set to <c>N</c>, and <c>N</c> clients have connected but not started the login process, the <c>N+1</c> connection attempt will be aborted.  If <c>N</c> connections are authenticated and still logged in, no more loggins will be accepted until one of the existing ones log out.
+	    <p>The maximum number of simultaneous sessions that are accepted at any time
+	    for this daemon. This includes sessions that are being authorized.
+	    Thus, if set to <c>N</c>, and <c>N</c> clients have connected but not started
+	    the login process, connection attempt <c>N+1</c> is aborted.
+	    If <c>N</c> connections are authenticated and still logged in, no more logins
+	    are accepted until one of the existing ones log out.
 	    </p>
-	    <p>The counter is per listening port, so if two daemons are started, one with <c>{max_sessions,N}</c> and the other with <c>{max_sessions,M}</c> there will be in total <c>N+M</c> connections accepted for the whole ssh application.
+	    <p>The counter is per listening port. Thus, if two daemons are started, one with
+	    <c>{max_sessions,N}</c> and the other with <c>{max_sessions,M}</c>, in total
+	    <c>N+M</c> connections are accepted for the whole <c>ssh</c> application.
 	    </p>
-	    <p>Note that if <c>parallel_login</c> is <c>false</c>, only one client at a time may be in the authentication phase.
+	    <p>Notice that if <c>parallel_login</c> is <c>false</c>, only one client
+	    at a time can be in the authentication phase.
 	    </p>
-	    <p>As default, the option is not set. This means that the number is not limited.
+	    <p>By default, this option is not set. This means that the number is not limited.
 	    </p>
 	  </item>
 
 	  <tag><c><![CDATA[{parallel_login, boolean()}]]></c></tag>
 	  <item>
-	    <p>If set to false (the default value), only one login is handled a time.  If set to true, an unlimited number of login attempts will be allowed simultanously.
+	    <p>If set to false (the default value), only one login is handled at a time.
+	    If set to true, an unlimited number of login attempts are allowed simultaneously.
 	    </p>
-	    <p>If the <c>max_sessions</c> option is set to <c>N</c> and <c>parallel_login</c> is set to <c>true</c>, the max number of simultaneous login attempts at any time is limited to <c>N-K</c> where <c>K</c> is the number of authenticated connections present at this daemon.
+	    <p>If the <c>max_sessions</c> option is set to <c>N</c> and <c>parallel_login</c>
+	    is set to <c>true</c>, the maximum number of simultaneous login attempts at any time is
+	    limited to <c>N-K</c>, where <c>K</c> is the number of authenticated connections present
+	    at this daemon.
 	    </p>
 	    <warning>
-	      <p>Do not enable <c>parallel_logins</c> without protecting the server by other means, for example the <c>max_sessions</c> option or a firewall configuration. If set to <c>true</c>, there is no protection against DOS attacks.</p>
+	      <p>Do not enable <c>parallel_logins</c> without protecting the server by other means,
+	      for example, by the <c>max_sessions</c> option or a firewall configuration. If set to
+	      <c>true</c>, there is no protection against DOS attacks.</p>
 	    </warning>
 	  </item>
 
@@ -371,25 +509,41 @@
 
 	  <tag><c><![CDATA[{key_cb, atom()}]]></c></tag>
 	  <item>
-	    <p>Module implementing the behaviour <seealso marker="ssh_server_key_api">ssh_server_key_api</seealso>.
+	    <p>Module implementing the behaviour
+	    <seealso marker="ssh_server_key_api">ssh_server_key_api</seealso>.
 	    Can be used to customize the handling of public keys.
 	    </p>
 	  </item>
+	  
+	  <tag><c>{profile, atom()}</c></tag>
+	  <item>
+	    <p>Used together with <c>ip-address</c> and <c>port</c> to
+	    uniquely identify a ssh daemon. This can be useful in a
+	    virtualized environment, where there can be more that one
+	    server that has the same <c>ip-address</c> and
+	    <c>port</c>. If this property is not explicitly set, it is
+	    assumed that the the <c>ip-address</c> and <c>port</c>
+	    uniquely identifies the SSH daemon.
+	    </p>
+	  </item>
+	  
 	  <tag><c><![CDATA[{fd, file_descriptor()}]]></c></tag>
 	  <item>
-	    <p>Allow an existing file-descriptor to be used
-	  (simply passed on to the transport protocol).</p></item>
-	  <tag><c><![CDATA[{failfun, fun(User::string(), PeerAddress::ip_address(), Reason::term()) -> _}]]></c></tag>
+	    <p>Allows an existing file-descriptor to be used
+	  (passed on to the transport protocol).</p></item>
+	  <tag><c><![CDATA[{failfun, fun(User::string(),
+	  PeerAddress::ip_address(), Reason::term()) -> _}]]></c></tag>
 	  <item>
-	    <p>Provide a fun to implement your own logging when a user fails to authenticate.</p>
+	    <p>Provides a fun to implement your own logging when a user fails to authenticate.</p>
 	  </item>
-	  <tag><c><![CDATA[{connectfun, fun(User::string(), PeerAddress::ip_address(), Method::string()) ->_}]]></c></tag>
+	  <tag><c><![CDATA[{connectfun, fun(User::string(), PeerAddress::ip_address(),
+	  Method::string()) ->_}]]></c></tag>
 	  <item>
-	    <p>Provide a fun to implement your own logging when a user authenticates to the server.</p>
+	    <p>Provides a fun to implement your own logging when a user authenticates to the server.</p>
 	  </item>
 	  <tag><c><![CDATA[{disconnectfun, fun(Reason:term()) -> _}]]></c></tag>
 	  <item>
-	    <p>Provide a fun to implement your own logging when a user disconnects from the server.</p>
+	    <p>Provides a fun to implement your own logging when a user disconnects from the server.</p>
 	  </item>
 
 	  <tag><c><![CDATA[{ssh_msg_debug_fun, fun(ConnectionRef::ssh_connection_ref(), AlwaysDisplay::boolean(), Msg::binary(), LanguageTag::binary()) -> _}]]></c></tag>
@@ -403,21 +557,41 @@
       </desc>   
     </func>
 
+    <func>
+      <name>default_algorithms() -> algs_list()</name>
+      <fsummary>Get a list declaring the supported algorithms</fsummary>
+      <desc>
+	<p>Returns a key-value list, where the keys are the different types of algorithms and the values are the
+	algorithms themselves. An example:</p>
+	<code>
+20> ssh:default_algorithms().
+[{kex,['diffie-hellman-group1-sha1']},
+ {public_key,['ssh-rsa','ssh-dss']},
+ {cipher,[{client2server,['aes128-ctr','aes128-cbc','3des-cbc']},
+          {server2client,['aes128-ctr','aes128-cbc','3des-cbc']}]},
+ {mac,[{client2server,['hmac-sha2-256','hmac-sha1']},
+       {server2client,['hmac-sha2-256','hmac-sha1']}]},
+ {compression,[{client2server,[none,zlib]},
+               {server2client,[none,zlib]}]}]
+21> 
+</code>
+      </desc>
+    </func>
 
     <func>
       <name>shell(Host) -> </name>
       <name>shell(Host, Option) -> </name>
       <name>shell(Host, Port, Option) -> _</name>
-      <fsummary> </fsummary>
+      <fsummary>Starts an interactive shell over an SSH server.</fsummary>
       <type>
-        <v> Host = string()</v>
-	<v> Port = integer()</v>
-	<v> Options - see ssh:connect/3</v>
+        <v>Host = string()</v>
+	<v>Port = integer()</v>
+	<v>Options - see ssh:connect/3</v>
       </type>
       <desc>
-        <p>Starts an interactive shell via an SSH server on the
+        <p>Starts an interactive shell over an SSH server on the
 	given <c>Host</c>. The function waits for user input,
-	and will not return until the remote shell is ended (i.e.
+	and does not return until the remote shell is ended (that is,
 	exit from the shell).
 	</p>
       </desc>
@@ -426,28 +600,29 @@
     <func>
       <name>start() -> </name>
       <name>start(Type) -> ok | {error, Reason}</name>
-      <fsummary>Starts the SSH application. </fsummary>
+      <fsummary>Starts the SSH application.</fsummary>
       <type>
         <v>Type =  permanent | transient | temporary</v>
 	<v>Reason = term() </v>
       </type>
       <desc>
-        <p>Utility function that starts crypto, public_key and the SSH
-	application. Defult type is temporary.
-	See also <seealso marker="kernel:application">application(3)</seealso>
-	</p>
+        <p>Utility function that starts the applications <c>crypto</c>, <c>public_key</c>,
+	and <c>ssh</c>. Default type is <c>temporary</c>.
+	For more information, see the <seealso marker="kernel:application">application(3)</seealso>
+	manual page in <c>kernel</c>.</p>
       </desc>
     </func>
 
     <func>
       <name>stop() -> ok | {error, Reason}</name>
-      <fsummary>Stops the SSH application.</fsummary>
+      <fsummary>Stops the <c>ssh</c> application.</fsummary>
       <type>
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Stops the SSH application. See also
-          <seealso marker="kernel:application">application(3)</seealso></p>
+        <p>Stops the <c>ssh</c> application.
+	For more information, see the <seealso marker="kernel:application">application(3)</seealso>
+	manual page in <c>kernel</c>.</p>
       </desc>
     </func>
     
@@ -471,7 +646,7 @@
       <name>stop_listener(DaemonRef) -> </name>
       <name>stop_listener(Address, Port) -> ok </name>
       <fsummary>Stops the listener, but leaves existing connections started
-	by the listener up and running.</fsummary>
+	by the listener operational.</fsummary>
       <type>
 	<v>DaemonRef = ssh_daemon_ref()</v>
         <v>Address = ip_address()</v>
@@ -479,7 +654,7 @@
       </type>
       <desc>
 	<p>Stops the listener, but leaves existing connections started
-	by the listener up and running.</p>
+	by the listener operational.</p>
       </desc>
     </func>
 
diff --git a/lib/ssh/doc/src/ssh_app.xml b/lib/ssh/doc/src/ssh_app.xml
index a1d2402790..1dfe68b17d 100644
--- a/lib/ssh/doc/src/ssh_app.xml
+++ b/lib/ssh/doc/src/ssh_app.xml
@@ -18,83 +18,103 @@
       basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
       the License for the specific language governing rights and limitations
       under the License.
-
     </legalnotice>
 
     <title>SSH</title>
+    <prepared></prepared>
+    <docno></docno>
+    <checked></checked>
+    <date></date>
+    <rev></rev>
     <file>ssh_app.xml</file>
   </header>
   <app>SSH</app>
-  <appsummary>The ssh application implements the SSH (Secure Shell) protocol and
-  provides an SFTP (SSH File Transfer Protocol) client and server. </appsummary>
+  <appsummary>The ssh application implements the Secure Shell (SSH) protocol and
+  provides an SSH File Transfer Protocol (SFTP) client and server.</appsummary>
+  <description>
+    <p>The <c>ssh</c> application is an implementation of the SSH protocol in Erlang.
+    <c>ssh</c> offers API functions to write customized SSH clients and servers as well as
+    making the Erlang shell available over SSH. An SFTP client, <c>ssh_sftp</c>, and server,
+    <c>ssh_sftpd</c>, are also included.</p>
+  </description>
 
-  <section>
+   <section>
     <title>DEPENDENCIES</title>
-    <p>The ssh application uses the Erlang applications public_key and
-    crypto to handle public keys and encryption, hence these
-    applications needs to be loaded for the ssh application to work. In
-    an embedded environment that means they need to be started with
-    application:start/[1,2] before the ssh application is started.
+    <p>The <c>ssh</c> application uses the applications <c>public_key</c> and
+    <c>crypto</c> to handle public keys and encryption. Hence, these
+    applications must be loaded for the <c>ssh</c> application to work. In
+    an embedded environment this means that they must be started with
+    <c>application:start/[1,2]</c> before the <c>ssh</c> application is started.
     </p>
   </section>
 
   <section>
     <title>CONFIGURATION</title>
 
-    <p>The ssh application does not currently have an application
-    specific configuration file as described in application(3),
-    however it will by default use the following configuration files
-    from openssh: known_hosts, authorized_keys, authorized_keys2,
-    id_dsa and id_rsa, ssh_host_dsa_key and ssh_host_rsa_key.  By
-    default Erlang SSH will look for id_dsa, id_rsa, known_hosts
-    and authorized_keys in ~/.ssh, and the host key files in /etc/ssh
-    . These locations may be changed by the options user_dir and
-    system_dir.  Public key handling may also be customized by
-    providing a callback module implementing the behaviors
-    <seealso marker="ssh_client_key_api">ssh_client_key_api</seealso> and
-    <seealso marker="ssh_server_key_api">ssh_server_key_api</seealso>.
-    </p>
+    <p>The <c>ssh</c> application does not have an application-
+    specific configuration file, as described in <seealso marker="kernel:application">application(3)</seealso>.
+    However, by default it use the following configuration files
+    from OpenSSH:</p>
+    <list type="bulleted">
+      <item><c>known_hosts</c></item>
+      <item><c>authorized_keys</c></item>
+      <item><c>authorized_keys2</c></item>
+      <item><c>id_dsa</c></item>
+      <item><c>id_rsa</c></item>
+      <item><c>ssh_host_dsa_key</c></item>
+      <item><c>ssh_host_rsa_key</c></item>
+    </list>
+      <p>By default, <c>ssh</c> looks for <c>id_dsa</c>, <c>id_rsa</c>,
+      <c>known_hosts</c>, and <c>authorized_keys</c> in ~/.ssh,
+      and for the host key files in <c>/etc/ssh</c>. These locations can be changed
+      by the options <c>user_dir</c> and <c>system_dir</c>.
+      </p>
+      <p>Public key handling can also be customized through a callback module that
+      implements the behaviors
+      <seealso marker="ssh_client_key_api">ssh_client_key_api</seealso> and
+      <seealso marker="ssh_server_key_api">ssh_server_key_api</seealso>.
+      </p>
 
-    <section>
-      <title>PUBLIC KEYS</title>
-      <p>
-	id_dsa and id_rsa are the users private key files, note that
-	the public key is part of the private key so the ssh
-	application will not use the id_&lt;*>.pub files. These are
-	for the users convenience when he/she needs to convey their
+  </section>
+  <section>
+    <title>Public Keys</title>
+    <p><c>id_dsa</c> and <c>id_rsa</c> are the users private key files.
+	Notice that the public key is part of the private key so the <c>ssh</c>
+	application does not use the <c>id_&lt;*>.pub</c> files. These are
+	for the user's convenience when it is needed to convey the user's
 	public key.
       </p>
-    </section>
-
-    <section>
-      <title>KNOW HOSTS</title>
-      <p>The known_hosts file contains a list of approved servers and
-      their public keys.  Once a server is listed, it can be verified
+  </section>
+ <section>
+    <title>Known Hosts</title>
+    <p>The <c>known_hosts</c> file contains a list of approved servers and
+      their public keys. Once a server is listed, it can be verified
       without user interaction.
       </p>
-     </section>
-
-     <section>
-      <title>AUTHORIZED KEYS</title>
-      <p>The authorized key file keeps track of the user's authorized
+  </section>
+ <section>
+    <title>Authorized Keys</title>
+    <p>The <c>authorized_key</c> file keeps track of the user's authorized
       public keys. The most common use of this file is to let users
-      log in without entering their password which is supported by the
-      Erlang SSH daemon.
+      log in without entering their password, which is supported by the
+      Erlang <c>ssh</c> daemon.
       </p>
-     </section>
-
-     <section>
-       <title>HOST KEYS</title>
-       <p>Currently rsa and dsa host keys are supported and are
-       expected to be found in files named ssh_host_rsa_key and
-       ssh_host_dsa_key.
+  </section>
+ <section>
+    <title>Host Keys</title>
+    <p>RSA and DSA host keys are supported and are
+       expected to be found in files named <c>ssh_host_rsa_key</c> and
+       <c>ssh_host_dsa_key</c>.
        </p>
-     </section>
+  </section>
+  <section>
+    <title>ERROR LOGGER AND EVENT HANDLERS</title>
+    <p>The <c>ssh</c> application uses the default <seealso marker="kernel:error_logger">OTP error logger</seealso> to log unexpected errors or print information about special events.</p>
   </section>
 
   <section>
     <title>SEE ALSO</title>
-    <p>application(3)</p>
+    <p><seealso marker="kernel:application">application(3)</seealso></p>
   </section>
 
 </appref>
diff --git a/lib/ssh/doc/src/ssh_channel.xml b/lib/ssh/doc/src/ssh_channel.xml
index a52a6a115e..2fdecf9072 100644
--- a/lib/ssh/doc/src/ssh_channel.xml
+++ b/lib/ssh/doc/src/ssh_channel.xml
@@ -23,69 +23,84 @@
       The Initial Developer of the Original Code is Ericsson AB.
     </legalnotice>
     <title>ssh_channel</title>
+    <prepared></prepared>
+    <docno></docno>
+    <date></date>
+    <rev></rev>
   </header>
   <module>ssh_channel</module>
   <modulesummary>-behaviour(ssh_channel).
   </modulesummary>
   <description>
     <p>SSH services (clients and servers) are implemented as channels
-    that are multiplexed over an SSH connection and communicates via
+    that are multiplexed over an SSH connection and communicates over
     the <url href="http://www.ietf.org/rfc/rfc4254.txt"> SSH
     Connection Protocol</url>. This module provides a callback API
-    that takes care of generic channel aspects such as flow control
-    and close messages and lets the callback functions take care of
+    that takes care of generic channel aspects, such as flow control
+    and close messages. It lets the callback functions take care of
     the service (application) specific parts. This behavior also ensures
     that the channel process honors the principal of an OTP-process so
     that it can be part of a supervisor tree. This is a requirement of
     channel processes implementing a subsystem that will be added to
-    the SSH applications supervisor tree.
+    the <c>ssh</c> applications supervisor tree.
     </p>
 
-    <note> <p>When implementing a SSH subsystem use the
-    <c>-behaviour(ssh_daemon_channel).</c> instead of  <c>-behaviour(ssh_channel).</c>
-    as the only relevant callback functions for subsystems are
-    init/1, handle_ssh_msg/2, handle_msg/2 and terminate/2, so the ssh_daemon_channel
-    behaviour is limited version of the ssh_channel behaviour.
-    </p> </note>
+    <note><p>When implementing an <c>ssh</c> subsystem, use
+    <c>-behaviour(ssh_daemon_channel)</c> instead of <c>-behaviour(ssh_channel)</c>.
+    The reason is that the only relevant callback functions for subsystems are
+    <c>init/1</c>, <c>handle_ssh_msg/2</c>, <c>handle_msg/2</c>, and <c>terminate/2</c>.
+    So, the <c>ssh_daemon_channel</c> behaviour is a limited version of the
+    <c>ssh_channel</c> behaviour.
+    </p></note>
   </description>
 
   <section>
-    <title>DATA TYPES </title>
+    <title>DATA TYPES</title>
 
-    <p>Type definitions that are used more than once in this module
-    and/or abstractions to indicate the intended use of the data
-    type:</p>
+    <p>Type definitions that are used more than once in this module,
+    or abstractions to indicate the intended use of the data
+    type, or both:</p>
     
-    <p><c>boolean() = true | false </c></p>
-    <p><c>string() = list of ASCII characters</c></p>
-    <p><c>timeout() =  infinity | integer() - in milliseconds.</c></p>
-    <p><c>ssh_connection_ref() - opaque to the user returned by
-    ssh:connect/3 or sent to an SSH channel process</c></p>
-    <p><c>ssh_channel_id() = integer() </c></p>
-    <p><c>ssh_data_type_code() = 1 ("stderr") | 0 ("normal") are
-    currently valid values see <url href="http://www.ietf.org/rfc/rfc4254.txt">RFC 4254  </url> section 5.2.</c></p>
+    <taglist>
+      <tag><c>boolean() =</c></tag>
+      <item><p><c>true | false</c></p></item>
+      <tag><c>string() =</c></tag>
+      <item><p>list of ASCII characters</p></item>
+      <tag><c>timeout() =</c></tag>
+      <item><p><c>infinity | integer()</c> in milliseconds</p></item>
+      <tag><c>ssh_connection_ref() =</c></tag>
+      <item><p>opaque() -as returned by
+      <c>ssh:connect/3</c> or sent to an SSH channel process</p></item>
+      <tag><c>ssh_channel_id() =</c></tag>
+      <item><p><c>integer()</c></p></item>
+      <tag><c>ssh_data_type_code() =</c></tag>
+      <item><p><c>1</c> ("stderr") | <c>0</c> ("normal") are
+      the valid values,
+      see <url href="http://www.ietf.org/rfc/rfc4254.txt">RFC 4254</url>
+      Section 5.2</p></item>
+    </taglist>
   </section>
 
   <funcs>
     <func>
       <name>call(ChannelRef, Msg) -></name>
       <name>call(ChannelRef, Msg, Timeout) -> Reply | {error, Reason}</name>
-      <fsummary> Makes a synchronous call to a channel.</fsummary>
+      <fsummary>Makes a synchronous call to a channel.</fsummary>
       <type>
 	<v>ChannelRef = pid() </v>
-	<d>As returned by start_link/4 </d>
-	<v>Msg = term() </v>
-	<v>Timeout = timeout() </v>
-	<v>Reply = term() </v>
-	<v>Reason = closed | timeout </v>
+	<d>As returned by <seealso marker = "#start_link-4">ssh_channel:start_link/4</seealso></d>
+	<v>Msg = term()</v>
+	<v>Timeout = timeout()</v>
+	<v>Reply = term()</v>
+	<v>Reason = closed | timeout</v>
 
       </type>
       <desc>
 	<p>Makes a synchronous call to the channel process by sending
-	a message and waiting until a reply arrives or a timeout
-	occurs. The channel will call <seealso marker =
+	a message and waiting until a reply arrives, or a time-out
+	occurs. The channel calls <seealso marker =
 	"#Module:handle_call-3">Module:handle_call/3</seealso>
-	to handle the message.  If the channel process does not exist
+	to handle the message. If the channel process does not exist,
 	<c>{error, closed}</c> is returned.
 	</p>
       </desc>
@@ -96,14 +111,14 @@
       <fsummary>Sends an asynchronous message to the channel
 	ChannelRef and returns ok.</fsummary>
       <type>
-	<v>ChannelRef = pid() </v>
-	<d>As returned by start_link/4 </d>
-	<v>Msg = term() </v>
+	<v>ChannelRef = pid()</v>
+	<d>As returned by <seealso marker = "#start_link-4">ssh_channel:start_link/4</seealso></d>
+	<v>Msg = term()</v>
       </type>
       <desc>
 	<p>Sends an asynchronous message to the channel process and
 	returns ok immediately, ignoring if the destination node or
-	channel process does not exist. The channel will call
+	channel process does not exist. The channel calls
 	<seealso marker = "#Module:handle_cast-2">Module:handle_cast/2</seealso>
 	 to handle the message.
 	</p>
@@ -112,31 +127,32 @@
 
        <func>
       <name>enter_loop(State) -> _ </name>
-      <fsummary> Makes an existing process an ssh_channel process. </fsummary>
+      <fsummary>Makes an existing process an ssh_channel process.</fsummary>
       <type>
-	<v> State = term() - as returned by <seealso marker = "#init-1">ssh_channel:init/1</seealso></v>
+	<v>State = term()</v>
+	<d>as returned by <seealso marker = "#init-1">ssh_channel:init/1</seealso></d>
       </type>
       <desc>
-	<p> Makes an existing process an <c>ssh_channel</c>
-	process. Does not return, instead the calling process will
-	enter the <c>ssh_channel</c> process receive loop and become an
-	<c>ssh_channel process.</c> The process must have been started using
-	one of the start functions in proc_lib, see <seealso
-	marker="stdlib:proc_lib">proc_lib(3)</seealso>. The
-	user is responsible for any initialization of the process
-	and needs to call <seealso marker = "#init-1">ssh_channel:init/1</seealso>
+	<p>Makes an existing process an <c>ssh_channel</c>
+	process. Does not return, instead the calling process
+	enters the <c>ssh_channel</c> process receive loop and become an
+	<c>ssh_channel process</c>. The process must have been started using
+	one of the start functions in <c>proc_lib</c>, see the <seealso
+	marker="stdlib:proc_lib">proc_lib(3)</seealso> manual page in <c>stdlib</c>.
+	The user is responsible for any initialization of the process
+	and must call <seealso marker = "#init-1">ssh_channel:init/1</seealso>.
 	</p>
       </desc>
     </func>
     
     <func>
       <name>init(Options) -> {ok, State} |  {ok, State, Timeout} | {stop, Reason} </name>
-      <fsummary> Initiates a ssh_channel process.</fsummary>
+      <fsummary>Initiates an <c>ssh_channel</c> process.</fsummary>
       <type>
 	<v>Options = [{Option, Value}]</v>
 	<v>State = term()</v>
-	<v>Timeout = timeout() </v>
-	<v>Reason = term() </v>
+	<v>Timeout = timeout()</v>
+	<v>Reason = term()</v>
       </type>
       <desc>
 	<p>
@@ -144,48 +160,47 @@
 	</p>
 	  <taglist>
 	  <tag><c><![CDATA[{channel_cb, atom()}]]></c></tag>
-	  <item>The module that implements the channel behaviour.</item>
+	  <item><p>The module that implements the channel behaviour.</p></item>
 	  
 	  <tag><c><![CDATA[{init_args(), list()}]]></c></tag>
-	  <item> The list of arguments to the callback module's
-	  init function.</item>
+	  <item><p>The list of arguments to the <c>init</c> function of the callback module.</p></item>
 
 	  <tag><c><![CDATA[{cm, connection_ref()}]]></c></tag>
-	  <item> Reference to the ssh connection as returned by  <seealso
-	  marker="ssh#connect-3">ssh:connect/3</seealso></item>
+	  <item><p>Reference to the <c>ssh</c> connection as returned by <seealso
+	  marker="ssh#connect-3">ssh:connect/3</seealso></p></item>
 	  
 	  <tag><c><![CDATA[{channel_id, channel_id()}]]></c></tag>
-	  <item> Id of the SSH channel.</item>
+	  <item><p>Id of the <c>ssh</c> channel.</p></item>
 	  
 	  </taglist>
 
 	  <note><p>This function is normally not called by the
-	  user. The user only needs to call if for some reason the
+	  user. The user only needs to call if the
 	  channel process needs to be started with help of
 	  <c>proc_lib</c> instead of calling
 	  <c>ssh_channel:start/4</c> or
-	  <c>ssh_channel:start_link/4</c> </p>
+	  <c>ssh_channel:start_link/4</c>.</p>
 	  </note>
       </desc>
     </func>
 
     <func>
       <name>reply(Client, Reply) -> _</name>
-      <fsummary>Send a reply to a client.</fsummary>
+      <fsummary>Sends a reply to a client.</fsummary>
       <type>
-        <v>Client - opaque to the user, see explanation below</v>
+        <v>Client = opaque()</v>
         <v>Reply = term()</v>
       </type>
       <desc>
-        <p>This function can be used by a channel to explicitly send a
+        <p>This function can be used by a channel to send a
         reply to a client that called <c>call/[2,3]</c> when the reply
         cannot be defined in the return value of
 	<seealso marker ="#Module:handle_call-3">Module:handle_call/3</seealso>.</p>
         <p><c>Client</c> must be the <c>From</c> argument provided to
           the callback function <c>handle_call/3</c>.
 	  <c>Reply</c> is an arbitrary term,
-	  which will be given back to the client as the return value of
-          <seealso marker="#call-2">ssh_channel:call/[2,3].</seealso>></p>
+	  which is given back to the client as the return value of
+          <seealso marker="#call-2">ssh_channel:call/[2,3].</seealso></p>
       </desc>
     </func>
     
@@ -193,24 +208,25 @@
       <name>start(SshConnection, ChannelId, ChannelCb, CbInitArgs) -> </name>
       <name>start_link(SshConnection, ChannelId, ChannelCb, CbInitArgs) ->
       {ok, ChannelRef} | {error, Reason}</name>
-      <fsummary> Starts a processes that handles a SSH channel. </fsummary>
+      <fsummary>Starts a process that handles an SSH channel.</fsummary>
       <type>
 	<v>SshConnection = ssh_connection_ref()</v>
-	<v>ChannelId = ssh_channel_id() </v>
-	<d> As returned by cannot be defined in the return value of
-	<seealso marker ="ssh_connection#session_channel/2">ssh_connection:session_channel/[2,4]</seealso></d>
+	<v>ChannelId = ssh_channel_id()</v>
+	<d>As returned by
+	<seealso marker ="ssh_connection#session_channel/2">
+	ssh_connection:session_channel/[2,4]</seealso>.</d>
 	<v>ChannelCb = atom()</v>
-	<d> The name of the module implementing the service specific parts
+	<d>Name of the module implementing the service-specific parts
 	of the channel.</d>
 	<v>CbInitArgs = [term()]</v>
-	<d>Argument  list for the init function in the callback module. </d>
+	<d>Argument list for the <c>init</c> function in the callback module.</d>
 	<v>ChannelRef = pid()</v>
       </type>
       <desc>
-	<p>Starts a processes that handles an SSH channel. It will be
-	called internally by the SSH daemon or explicitly by the SSH
-	client implementations. The behavior will set the
-	<c>trap_exit</c> flag to true.
+	<p>Starts a process that handles an SSH channel. It is
+	called internally, by the <c>ssh</c> daemon, or explicitly by the <c>ssh</c>
+	client implementations. The behavior sets the
+	<c>trap_exit</c> flag to <c>true</c>.
 	</p>
       </desc>
     </func>
@@ -219,19 +235,19 @@
   
   <section>
     <marker id="cb_timeouts"></marker>
-    <title> CALLBACK TIMEOUTS</title>
+    <title>CALLBACK TIME-OUTS</title>
 
-    <p>The timeout values that may be returned by the callback functions
-    has the same semantics as in a <seealso marker="stdlib:gen_server">gen_server</seealso>
-    If the timeout occurs <seealso marker="#Module:handle_msg-2">handle_msg/2</seealso>
-    will be called as <c>handle_msg(timeout, State). </c></p>
+    <p>The time-out values that can be returned by the callback functions
+    have the same semantics as in a <seealso marker="stdlib:gen_server">gen_server</seealso>.
+    If the time-out occurs, <seealso marker="#Module:handle_msg-2">handle_msg/2</seealso>
+    is called as <c>handle_msg(timeout, State)</c>.</p>
   </section>
 
   <funcs>
     <func>
       <name>Module:code_change(OldVsn, State, Extra) -> {ok,
       NewState}</name>
-      <fsummary> Converts process state when code is changed.</fsummary>
+      <fsummary>Converts process state when code is changed.</fsummary>
       <type>
 	<v>OldVsn = term()</v>
 	<d>In the case of an upgrade, <c>OldVsn</c> is <c>Vsn</c>, and
@@ -241,31 +257,31 @@
 	<c>Module</c>. If no such attribute is defined, the version is
 	the checksum of the BEAM file.</d>
 	<v>State = term()</v>
-	<d>The internal state of the channel.</d>
+	<d>Internal state of the channel.</d>
         <v>Extra = term()</v>
-	<d>Passed as-is from the <c>{advanced,Extra}</c>
+	<d>Passed "as-is" from the <c>{advanced,Extra}</c>
 	part of the update instruction.</d>
       </type>
       <desc>
-	<p> Converts process state when code is changed.</p>
+	<p>Converts process state when code is changed.</p>
 
-	<p>This function is called by a client side channel when it
-	should update its internal state during a release
-	upgrade/downgrade, i.e. when the instruction
-	<c>{update,Module,Change,...}</c> where
-	<c>Change={advanced,Extra}</c> is given in the <c>appup</c>
-	file. See <seealso marker="doc/design_principles:release_handling#instr">OTP
-	Design Principles</seealso> for more information.
+	<p>This function is called by a client-side channel when it
+	is to update its internal state during a release
+	upgrade or downgrade, that is, when the instruction
+	<c>{update,Module,Change,...}</c>, where
+	<c>Change={advanced,Extra}</c>, is given in the <c>appup</c>
+	file. For more information, refer to Section 9.11.6
+	Release Handling Instructions in the
+	<seealso marker="doc/design_principles:release_handling#instr">System Documentation</seealso>.
 	</p>
 
 	<note><p>Soft upgrade according to the OTP release concept
 	is not straight forward for the server side, as subsystem
-	channel processes are spawned by the SSH application and
-	hence added to its supervisor tree. It could be possible to
-	upgrade the subsystem channels, when upgrading the user
-	application, if the callback functions can handle two
-	versions of the state, but this function can not be used in
-	the normal way.</p>
+	channel processes are spawned by the <c>ssh</c> application and
+	hence added to its supervisor tree. The subsystem channels can
+	be upgraded when upgrading the user application, if the callback
+	functions can handle two versions of the state, but this function
+	cannot be used in the normal way.</p>
 	</note>
 	  
       </desc>
@@ -274,36 +290,38 @@
     <func>
       <name>Module:init(Args) -> {ok, State} | {ok, State, timeout()} |
       {stop, Reason}</name>
-      <fsummary> Makes necessary initializations and returns the
+      <fsummary>Makes necessary initializations and returns the
       initial channel state if the initializations succeed.</fsummary>
       <type>
-	<v> Args = term() </v>
-	<d> Last argument to ssh_channel:start_link/4.</d>
-	<v> State = term() </v>
-	<v> Reason = term() </v>
+	<v>Args = term()</v>
+	<d>Last argument to <c>ssh_channel:start_link/4</c>.</d>
+	<v>State = term()</v>
+	<v>Reason = term()</v>
       </type>
       <desc>
-	<p> Makes necessary initializations and returns the initial channel
+	<p>Makes necessary initializations and returns the initial channel
 	state if the initializations succeed.
 	</p>
-	<p>For more detailed information on timeouts see the section 
-	<seealso marker="#cb_timeouts">CALLBACK TIMEOUTS</seealso>. </p>
+	<p>For more detailed information on time-outs, see Section
+	<seealso marker="#cb_timeouts">CALLBACK TIME-OUTS</seealso>. </p>
       </desc>
     </func>
    
     <func>
       <name>Module:handle_call(Msg, From, State) -> Result</name>
-      <fsummary> Handles messages sent by calling
-      <c>ssh_channel:call/[2,3]</c></fsummary>
+      <fsummary>Handles messages sent by calling
+      <c>ssh_channel:call/[2,3]</c>.</fsummary>
       <type>
 	<v>Msg = term()</v>
-	<v>From = opaque to the user should be used as argument to
-	ssh_channel:reply/2</v>
+	<v>From = opaque()</v>
+	<d>Is to be used as argument to
+	<seealso marker="#reply-2">ssh_channel:reply/2</seealso></d>
 	<v>State = term()</v>
 	<v>Result = {reply, Reply, NewState} | {reply, Reply, NewState, timeout()}
 	| {noreply, NewState} | {noreply , NewState, timeout()}
 	| {stop, Reason, Reply, NewState} | {stop, Reason, NewState} </v>
-	<v>Reply = term() - will be the return value of ssh_channel:call/[2,3]</v>
+	<v>Reply = term()</v>
+	<d>Will be the return value of <seealso marker="#call-2">ssh_channel:call/[2,3]</seealso></d>
 	<v>NewState = term()</v>
 	<v>Reason = term()</v>
       </type>
@@ -311,15 +329,15 @@
 	<p>Handles messages sent by calling
 	<seealso marker="#call-2">ssh_channel:call/[2,3]</seealso>
 	</p>
-	<p>For more detailed information on timeouts see the section 
-	<seealso marker="#cb_timeouts">CALLBACK TIMEOUTS</seealso>. </p>
+	<p>For more detailed information on time-outs,, see Section
+	<seealso marker="#cb_timeouts">CALLBACK TIME-OUTS</seealso>.</p>
       </desc>
     </func>
 
     <func>
       <name>Module:handle_cast(Msg, State) -> Result</name>
-      <fsummary> Handles messages sent by calling
-      <c>ssh_channel:cact/2</c></fsummary>
+      <fsummary>Handles messages sent by calling
+      <c>ssh_channel:cact/2</c>.</fsummary>
       <type>
 	<v>Msg = term()</v>
 	<v>State = term()</v>
@@ -329,11 +347,11 @@
 	<v>Reason = term()</v>
       </type>
       <desc>
-	<p> Handles messages sent by calling
-	<c>ssh_channel:cast/2</c>
+	<p>Handles messages sent by calling
+	<c>ssh_channel:cast/2</c>.
 	</p>
-	<p>For more detailed information on timeouts see the section 
-	<seealso marker="#cb_timeouts">CALLBACK TIMEOUTS</seealso>. </p>
+	<p>For more detailed information on time-outs, see Section
+	<seealso marker="#cb_timeouts">CALLBACK TIME-OUTS</seealso>.</p>
       </desc>
     </func>
  
@@ -341,33 +359,33 @@
       <name>Module:handle_msg(Msg, State) -> {ok, State} |
       {stop, ChannelId, State}</name>
 
-      <fsummary> Handle other messages than SSH connection protocol,
-      call or cast messages sent to the channel.</fsummary>
+      <fsummary>Handles other messages than SSH connection protocol,
+      call, or cast messages sent to the channel.</fsummary>
       <type>
 	<v>Msg = timeout | term()</v>
 	<v>ChannelId = ssh_channel_id()</v>
 	<v>State = term() </v>
       </type>
       <desc>
-	<p>Handle other messages than ssh connection protocol, call or
+	<p>Handles other messages than SSH Connection Protocol, call, or
 	cast messages sent to the channel. 
 	</p>
 
-	<p> Possible erlang 'EXIT'-messages should be handled by this
-	function and all channels should handle the following message.</p>
+	<p>Possible Erlang 'EXIT' messages is to be handled by this
+	function and all channels are to handle the following message.</p>
 	
 	<taglist>
 	  <tag><c><![CDATA[{ssh_channel_up, ssh_channel_id(), 
 	  ssh_connection_ref()}]]></c></tag>
-	  <item>This is the first messages that will be received by
-	  the channel, it is sent just before the <seealso
+	  <item><p>This is the first message that the channel receives.
+	  It is sent just before the <seealso
 	  marker="#init-1">ssh_channel:init/1</seealso> function
-	  returns successfully.  This is especially useful if the
+	  returns successfully. This is especially useful if the
 	  server wants to send a message to the client without first
 	  receiving a message from it. If the message is not
-	  useful for your particular scenario just ignore it by
-	  immediately returning {ok, State}.
-	  </item>
+	  useful for your particular scenario, ignore it by
+	  immediately returning <c>{ok, State}</c>.
+	  </p></item>
 	</taglist>
       </desc>
     </func>
@@ -375,42 +393,44 @@
     <func>
       <name>Module:handle_ssh_msg(Msg, State) -> {ok, State} | {stop,
       ChannelId, State}</name>
-      <fsummary> Handles ssh connection protocol messages. </fsummary>
+      <fsummary>Handles <c>ssh</c> connection protocol messages.</fsummary>
       <type>
-	<v>Msg = <seealso marker="ssh_connection"> ssh_connection:event() </seealso> </v>
+	<v>Msg = ssh_connection:event()</v>
 	<v>ChannelId = ssh_channel_id()</v>
 	<v>State = term()</v>
       </type>
       <desc>
-	<p> Handles SSH connection protocol messages that may need
-	service specific attention.
+	<p>Handles SSH Connection Protocol messages that may need
+	service-specific attention. For details,
+	see <seealso marker="ssh_connection"> ssh_connection:event()</seealso>.
 	</p>
 	
-	<p> The following message is completely taken care of by the
-	SSH channel behavior</p>
+	<p>The following message is taken care of by the
+	<c>ssh_channel</c> behavior.</p>
 	
 	<taglist>
 	  <tag><c><![CDATA[{closed, ssh_channel_id()}]]></c></tag>
-	  <item> The channel behavior will send a close message to the
-	  other side if such a message has not already been sent and
-	  then terminate the channel with reason normal.</item>
+	  <item><p>The channel behavior sends a close message to the
+	  other side, if such a message has not already been sent.
+	  Then it terminates the channel with reason <c>normal</c>.</p></item>
 	</taglist>
       </desc>
     </func>
 
     <func>
       <name>Module:terminate(Reason, State) -> _</name>
-      <fsummary> </fsummary>
+      <fsummary>Does cleaning up before channel process termination.
+      </fsummary>
       <type>
 	<v>Reason = term()</v>
 	<v>State = term()</v>
       </type>
       <desc>
 	<p>This function is called by a channel process when it is
-	about to terminate. Before this function is called <seealso
+	about to terminate. Before this function is called, <seealso
 	marker="ssh_connection#close-2"> ssh_connection:close/2
-	</seealso> will be called if it has not been called earlier.
-	This function should do any necessary cleaning
+	</seealso> is called, if it has not been called earlier.
+	This function does any necessary cleaning
 	up. When it returns, the channel process terminates with
 	reason <c>Reason</c>. The return value is ignored.
 	</p>
diff --git a/lib/ssh/doc/src/ssh_client_key_api.xml b/lib/ssh/doc/src/ssh_client_key_api.xml
index f3d05a8980..9a892d71fd 100644
--- a/lib/ssh/doc/src/ssh_client_key_api.xml
+++ b/lib/ssh/doc/src/ssh_client_key_api.xml
@@ -23,102 +23,112 @@
       The Initial Developer of the Original Code is Ericsson AB.
     </legalnotice>
     <title>ssh_client_key_api</title>
+    <prepared></prepared>
+    <docno></docno>
+    <date></date>
+    <rev></rev>
   </header>
   <module>ssh_client_key_api</module>
   <modulesummary>
      -behaviour(ssh_client_key_api).
   </modulesummary>
   <description>
-    <p> Behavior describing the API for an SSH client's public key handling.
-      By implementing the callbacks defined.
-    in this behavior it is possible to customize the SSH client's public key
-    handling. By default the SSH application implements this behavior
-    with help of the standard openssh files, see <seealso marker="SSH_app"> ssh(6)</seealso>. </p>
+    <p>Behavior describing the API for public key handling of an SSH client. By implementing
+    the callbacks defined in this behavior, the public key handling of an SSH client can
+    be customized. By default the <c>ssh</c> application implements this behavior
+    with help of the standard OpenSSH files,
+    see the <seealso marker="SSH_app"> ssh(6)</seealso> application manual.</p>
   </description>
 
   <section>
-    <title>DATA TYPES </title>
+    <title>DATA TYPES</title>
 
-    <p>Type definitions that are used more than once in this module
-    and/or abstractions to indicate the intended use of the data
-    type. For more details on public key data types 
-    see the <seealso marker="public_key:public_key_records"> public_key user's guide.</seealso>
+    <p>Type definitions that are used more than once in this module,
+    or abstractions to indicate the intended use of the data
+    type, or both. For more details on public key data types,
+    refer to Section 2 Public Key Records in the
+    <seealso marker="public_key:public_key_records"> public_key user's guide:</seealso>
     </p>
-
-    <p> boolean() = true | false</p>
-    <p> string() =  [byte()] </p>
-    <p> public_key() =  #'RSAPublicKey'{}| {integer(),  #'Dss-Parms'{}}| term()</p>
-    <p> private_key() =  #'RSAPrivateKey'{} | #'DSAPrivateKey'{} | term()</p>
-    <p> public_key_algorithm() =  'ssh-rsa'| 'ssh-dss' | atom()</p>
-
+    <taglist>
+      <tag><c>boolean() =</c></tag>
+      <item><p><c>true | false</c></p></item>
+      <tag><c>string() =</c></tag>
+      <item><p><c>[byte()]</c></p></item>
+      <tag><c>public_key() =</c></tag>
+      <item><p><c>#'RSAPublicKey'{}| {integer(),  #'Dss-Parms'{}}| term()</c></p></item>
+      <tag><c>private_key() =</c></tag>
+      <item><p><c>#'RSAPrivateKey'{} | #'DSAPrivateKey'{} | term()</c></p></item>
+      <tag><c>public_key_algorithm() =</c></tag>
+      <item><p><c>'ssh-rsa'| 'ssh-dss' | atom()</c></p></item>
+    </taglist>
   </section>
 
   <funcs>
     <func>
       <name>Module:add_host_key(HostNames, Key, ConnectOptions) -> ok | {error, Reason}</name>
-      <fsummary>Adds a host key to the set of trusted host keys</fsummary>
+      <fsummary>Adds a host key to the set of trusted host keys.</fsummary>
       <type>
       <v>HostNames = string()</v>
-      <d>Description of the host that owns the <c>PublicKey</c></d>
+      <d>Description of the host that owns the <c>PublicKey</c>.</d>
 
-      <v>Key = public_key() </v>
-      <d> Normally an RSA or DSA public key but handling of other public keys can be added</d>
+      <v>Key = public_key()</v>
+      <d>Normally an RSA or DSA public key, but handling of other public keys can be added.</d>
 
-      <v>ConnectOptions = proplists:proplist() </v>
-      <d>Options provided to  <seealso marker="ssh#connect-3">ssh:connect/[3,4]</seealso></d>
-      <v>Reason = term() </v>
+      <v>ConnectOptions = proplists:proplist()</v>
+      <d>Options provided to <seealso marker="ssh#connect-3">ssh:connect/[3,4]</seealso></d>
+      <v>Reason = term().</v>
       </type>
       <desc>
-	 <p> Adds a host key to the set of trusted host keys</p>
+	 <p>Adds a host key to the set of trusted host keys.</p>
       </desc>
     </func>
 
     <func>
       <name>Module:is_host_key(Key, Host, Algorithm, ConnectOptions) -> Result</name>
-      <fsummary>Checks if a host key is trusted</fsummary>
+      <fsummary>Checks if a host key is trusted.</fsummary>
       <type>
 	<v>Key = public_key() </v>
-	<d> Normally an RSA or DSA public key but handling of other public keys can be added</d>
+	<d>Normally an RSA or DSA public key, but handling of other public keys can be added.</d>
 
 	<v>Host = string()</v>
-	<d>Description of the host</d>
+	<d>Description of the host.</d>
 
 	<v>Algorithm = public_key_algorithm()</v>
-	<d> Host key algorithm. Should support 'ssh-rsa'| 'ssh-dss' but additional algorithms
+	<d>Host key algorithm. Is to support <c>'ssh-rsa'| 'ssh-dss'</c>, but more algorithms
 	can be handled.</d>
 
-	<v> ConnectOptions = proplists:proplist() </v>
-	<d>Options provided to  <seealso marker="ssh#connect-3">ssh:connect/[3,4]</seealso></d>
+	<v>ConnectOptions = proplists:proplist() </v>
+	<d>Options provided to <seealso marker="ssh#connect-3">ssh:connect/[3,4]</seealso>.</d>
 
-	<v> Result = boolean()</v>
+	<v>Result = boolean()</v>
       </type>
       <desc>
-	<p>Checks if a host key is trusted</p>
+	<p>Checks if a host key is trusted.</p>
       </desc>
     </func>
 
     <func>
       <name>Module:user_key(Algorithm, ConnectOptions) ->
       {ok,  PrivateKey}  | {error, Reason}</name>
-      <fsummary>Fetches the users "public key" matching the <c>Algorithm</c>.</fsummary>
+      <fsummary>Fetches the users <em>public key</em> matching the <c>Algorithm</c>.</fsummary>
       <type>
 	<v>Algorithm = public_key_algorithm()</v>
-	<d> Host key algorithm. Should support 'ssh-rsa'| 'ssh-dss' but additional algorithms
+	<d>Host key algorithm. Is to support <c>'ssh-rsa'| 'ssh-dss'</c> but more algorithms
 	can be handled.</d>
 
-	<v> ConnectOptions = proplists:proplist() </v>
-	<d>Options provided to  <seealso marker="ssh#connect-3">ssh:connect/[3,4]</seealso></d>
+	<v>ConnectOptions = proplists:proplist()</v>
+	<d>Options provided to <seealso marker="ssh#connect-3">ssh:connect/[3,4]</seealso></d>
 
-	<v> PrivateKey = private_key()</v>
-	<d> The private key of the user matching the <c>Algorithm</c></d>
+	<v>PrivateKey = private_key()</v>
+	<d>Private key of the user matching the <c>Algorithm</c>.</d>
 
-	<v>Reason = term() </v>
+	<v>Reason = term()</v>
       </type>
 
       <desc>
-	<p>Fetches the users "public key" matching the <c>Algorithm</c>.
-	<note><p>The private key contains the public key</p></note>
-	</p>
+	<p>Fetches the users <em>public key</em> matching the <c>Algorithm</c>.</p>
+	<note><p>The private key contains the public key.</p></note>
+
       </desc>
     </func>
 
diff --git a/lib/ssh/doc/src/ssh_connection.xml b/lib/ssh/doc/src/ssh_connection.xml
index 5e2926dfa6..5422633dc3 100644
--- a/lib/ssh/doc/src/ssh_connection.xml
+++ b/lib/ssh/doc/src/ssh_connection.xml
@@ -24,156 +24,174 @@
     </legalnotice>
 
     <title>ssh_connection</title>
+    <prepared></prepared>
+    <docno></docno>
     <date></date>
+    <rev></rev>
   </header>
   <module>ssh_connection</module>
-  <modulesummary>This module provides API functions to send <url href="http://www.ietf.org/rfc/rfc4254.txt"> SSH Connection Protocol </url>
+  <modulesummary>This module provides API functions to send
+  <url href="http://www.ietf.org/rfc/rfc4254.txt"> SSH Connection Protocol </url>
   events to the other side of an SSH channel.
   </modulesummary>
 
   <description>
-    <p>The SSH Connection Protocol is used by clients and servers
-    (i.e. SSH channels) to communicate over the SSH connection. The
-    API functions in this module sends SSH Connection Protocol events
-    that are received as messages by the remote channel.
-    In the case that the receiving channel is an Erlang process the
-    message will be on the following format
-    <c><![CDATA[{ssh_cm, ssh_connection_ref(), ssh_event_msg()}]]></c>. If the <seealso
-    marker="ssh_channel">ssh_channel</seealso> behavior is used to
-    implement the channel process these will be handled by
-    <seealso
-	marker="ssh_channel#Module:handle_ssh_msg-2">handle_ssh_msg/2 </seealso>.</p>
+    <p>The SSH Connection Protocol is used by clients and servers,
+    that is, SSH channels, to communicate over the SSH connection. The
+    API functions in this module send SSH Connection Protocol events,
+    which are received as messages by the remote channel.
+    If the receiving channel is an Erlang process, the
+    messages have the format
+    <c><![CDATA[{ssh_cm, ssh_connection_ref(), ssh_event_msg()}]]></c>.
+    If the <seealso marker="ssh_channel">ssh_channel</seealso> behavior is used to
+    implement the channel process, these messages are handled by
+    <seealso marker="ssh_channel#Module:handle_ssh_msg-2">handle_ssh_msg/2</seealso>.</p>
   </description>
 
   <section>
-    <title>DATA TYPES </title>
-
-    <p>Type definitions that are used more than once in this module and/or
-    abstractions to indicate the intended use of the data type:</p>
-
-    <p><c>boolean() = true | false </c></p>
-    <p><c>string() = list of ASCII characters</c></p>
-    <p><c>timeout() =  infinity | integer() - in milliseconds.</c></p>
-    <p><c>ssh_connection_ref() - opaque to the user returned by
-    ssh:connect/3 or sent to an SSH channel processes</c></p>
-    <p><c>ssh_channel_id() = integer() </c></p>
-    <p><c>ssh_data_type_code() = 1 ("stderr") | 0 ("normal") are
-    currently valid values see</c> <url href="http://www.ietf.org/rfc/rfc4254.txt">RFC 4254  </url> section 5.2.</p>
-    <p><c>ssh_request_status() = success | failure</c></p>
-    <p><c>event() = {ssh_cm, ssh_connection_ref(), ssh_event_msg()} </c></p>
-    <p><c>ssh_event_msg()  = data_events() | status_events() | terminal_events() </c></p>
-    <p><c>reason() = timeout | closed  </c></p>
+    <title>DATA TYPES</title>
+
+    <p>Type definitions that are used more than once in this module,
+    or abstractions to indicate the intended use of the data
+    type, or both:</p>
+
+    <taglist>
+      <tag><c>boolean() =</c></tag>
+      <item><p><c>true | false </c></p></item>
+      <tag><c>string() =</c></tag>
+      <item><p>list of ASCII characters</p></item>
+      <tag><c>timeout() =</c></tag>
+      <item><p><c>infinity | integer()</c> in milliseconds</p></item>
+      <tag><c>ssh_connection_ref() =</c></tag>
+      <item><p>opaque() -as returned by
+      <c>ssh:connect/3</c> or sent to an SSH channel processes</p></item>
+      <tag><c>ssh_channel_id() =</c></tag>
+      <item><p><c>integer()</c></p></item>
+      <tag><c>ssh_data_type_code() =</c></tag>
+      <item><p><c>1</c> ("stderr") | <c>0</c> ("normal") are
+      valid values, see
+      <url href="http://www.ietf.org/rfc/rfc4254.txt">RFC 4254</url> Section 5.2.</p></item>
+      <tag><c>ssh_request_status() =</c></tag>
+      <item><p> <c>success | failure</c></p></item>
+      <tag><c>event() =</c></tag>
+      <item><p><c>{ssh_cm, ssh_connection_ref(), ssh_event_msg()}</c></p></item>
+      <tag><c>ssh_event_msg() =</c></tag>
+      <item><p><c>data_events() | status_events() | terminal_events()</c></p></item>
+      <tag><c>reason() =</c></tag>
+      <item><p><c>timeout | closed</c></p></item>
+    </taglist>
 
     <taglist>
-      <tag><b>data_events()</b></tag>
+      <tag><em>data_events()</em></tag>
        <item>
 	 <taglist>
 	   <tag><c><![CDATA[{data, ssh_channel_id(), ssh_data_type_code(), binary() = Data}]]></c></tag>
-	   <item> Data has arrived on the channel. This event is sent as
-	   result of calling <seealso marker="ssh_connection#send-3"> ssh_connection:send/[3,4,5] </seealso></item>
+	   <item><p>Data has arrived on the channel. This event is sent as a
+	   result of calling <seealso marker="ssh_connection#send-3">
+	   ssh_connection:send/[3,4,5]</seealso>.</p></item>
 
 	   <tag><c><![CDATA[{eof, ssh_channel_id()}]]></c></tag>
-	   <item>Indicates that the other side will not send any more
-	   data. This event is sent as result of calling <seealso
-	   marker="ssh_connection#send_eof-2"> ssh_connection:send_eof/2</seealso>
-	   </item>
+	   <item><p>Indicates that the other side sends no more data.
+	   This event is sent as a result of calling <seealso
+	   marker="ssh_connection#send_eof-2"> ssh_connection:send_eof/2</seealso>.
+	   </p></item>
 	 </taglist>
        </item>
 
-       <tag><b>status_events()</b></tag>
+       <tag><em>status_events()</em></tag>
        <item>
 
       <taglist>
 	<tag><c><![CDATA[{signal, ssh_channel_id(), ssh_signal()}]]></c></tag>
-	<item>A signal can be delivered to the remote process/service
-	using the following message. Some systems will not support
-	signals, in which case they should ignore this message. There is
-	currently no funtion to generate this event as the signals
-	refered to are on OS-level and not something generated by an
-	Erlang program.</item>
+	<item><p>A signal can be delivered to the remote process/service
+	using the following message. Some systems do not support
+	signals, in which case they are to ignore this message. There is
+	currently no function to generate this event as the signals
+	referred to are on OS-level and not something generated by an
+	Erlang program.</p></item>
 
 	<tag><c><![CDATA[{exit_signal, ssh_channel_id(), string() = ExitSignal, string() = ErrorMsg,
 	string() = LanguageString}]]></c></tag>
 
-	<item>A remote execution may terminate violently due to a signal
-	then this message may be received. For details on valid string
-	values see  <url href="http://www.ietf.org/rfc/rfc4254.txt">RFC 4254</url> section 6.10. Special case of the signals
-	mentioned above.</item>
+	<item><p>A remote execution can terminate violently because of a signal.
+	Then this message can be received. For details on valid string
+	values, see <url href="http://www.ietf.org/rfc/rfc4254.txt">RFC 4254</url>
+	Section 6.10, which shows a special case of these signals.</p></item>
 
 	<tag><c><![CDATA[{exit_status, ssh_channel_id(), integer() = ExitStatus}]]></c></tag>
-	<item> When the command running at the other end terminates, the
+	<item><p>When the command running at the other end terminates, the
 	following message can be sent to return the exit status of the
-	command. A zero 'exit_status' usually means that the command
-	terminated successfully. This event is sent as result of calling
+	command. A zero <c>exit_status</c> usually means that the command
+	terminated successfully. This event is sent as a result of calling
 	<seealso marker="ssh_connection#exit_status-3">
-	ssh_connection:exit_status/3</seealso></item>
+	ssh_connection:exit_status/3</seealso>.</p></item>
 
 	<tag><c><![CDATA[{closed, ssh_channel_id()}]]></c></tag>
-	<item> This event is sent as result of calling
-	<seealso marker="ssh_connection#close-2">ssh_connection:close/2</seealso> Both the handling of this
-	event and sending of it will be taken care of by the
-	<seealso marker="ssh_channel">ssh_channel</seealso> behavior.</item>
+	<item><p>This event is sent as a result of calling
+	<seealso marker="ssh_connection#close-2">ssh_connection:close/2</seealso>.
+	Both the handling of this event and sending it are taken care of by the
+	<seealso marker="ssh_channel">ssh_channel</seealso> behavior.</p></item>
 
       </taglist>
      </item>
 
-     <tag><b>terminal_events()</b></tag>
+     <tag><em>terminal_events()</em></tag>
 
      <item>
-       <p> Channels implementing a shell and command execution on the
-       server side should handle the following messages that may be sent by client channel processes. </p>
+       <p>Channels implementing a shell and command execution on the
+       server side are to handle the following messages that can be sent by client-
+       channel processes.</p>
 
-      <note> <p>Events that includes a  <c> WantReply</c> expects the event handling
-       process to call <seealso marker="ssh_connection#reply_request-4">ssh_connection:reply_request/4</seealso>
-       with the boolean value of <c> WantReply</c> as the second
-       argument.  </p></note>
+      <p>Events that include a <c>WantReply</c> expect the event handling
+       process to call <seealso marker="ssh_connection#reply_request-4">
+       ssh_connection:reply_request/4</seealso>
+       with the boolean value of <c>WantReply</c> as the second argument.</p>
 
        <taglist>
 	 <tag><c><![CDATA[{env, ssh_channel_id(), boolean() = WantReply,
 	 string() = Var, string() = Value}]]></c></tag>
-	 <item> Environment variables may be passed to the shell/command
-	 to be started later. This event is sent as result of calling <seealso
-	 marker="ssh_connection#setenv-5"> ssh_connection:setenv/5</seealso>
-	 </item>
+	 <item><p>Environment variables can be passed to the shell/command
+	 to be started later. This event is sent as a result of calling <seealso
+	 marker="ssh_connection#setenv-5"> ssh_connection:setenv/5</seealso>.
+	 </p></item>
 
 	 <tag><c><![CDATA[{pty, ssh_channel_id(),
 	 boolean() = WantReply, {string() = Terminal, integer() = CharWidth,
 	 integer() = RowHeight, integer() = PixelWidth, integer() = PixelHeight,
 	 [{atom() | integer() = Opcode,
 	 integer() = Value}] = TerminalModes}}]]></c></tag>
-	 <item>A pseudo-terminal has been requested for the
-	 session. Terminal is the value of the TERM environment
-	 variable value (e.g., vt100). Zero dimension parameters must
-	 be ignored.  The character/row dimensions override the pixel
-	 dimensions (when nonzero).  Pixel dimensions refer to the
-	 drawable area of the window. The <c>Opcode</c> in the
+	 <item><p>A pseudo-terminal has been requested for the
+	 session. <c>Terminal</c> is the value of the TERM environment
+	 variable value, that is, <c>vt100</c>. Zero dimension parameters must
+	 be ignored. The character/row dimensions override the pixel
+	 dimensions (when non-zero). Pixel dimensions refer to the
+	 drawable area of the window. <c>Opcode</c> in the
 	 <c>TerminalModes</c> list is the mnemonic name, represented
-	 as an lowercase erlang atom, defined in
-	 <url href="http://www.ietf.org/rfc/rfc4254.txt">RFC 4254  </url> section 8.
-	 It may also be an opcode if the mnemonic name is not listed in the
-	 RFC. Example <c>OP code: 53, mnemonic name ECHO erlang atom:
-	 echo</c>.This event is sent as result of calling <seealso
-	 marker="ssh_connection#ptty_alloc/4">ssh_connection:ptty_alloc/4</seealso></item>
+	 as a lowercase Erlang atom, defined in
+	 <url href="http://www.ietf.org/rfc/rfc4254.txt">RFC 4254</url>, Section 8.
+	 It can also be an <c>Opcode</c> if the mnemonic name is not listed in the
+	 RFC. Example: <c>OP code: 53, mnemonic name ECHO erlang atom:
+	 echo</c>. This event is sent as a result of calling <seealso
+	 marker="ssh_connection#ptty_alloc/4">ssh_connection:ptty_alloc/4</seealso>.</p></item>
 
 	 <tag><c><![CDATA[{shell, boolean() = WantReply}]]></c></tag>
-	 <item> This message will request that the user's default shell
-	 be started at the other end. This event is sent as result of calling <seealso
-	 marker="ssh_connection#shell-2"> ssh_connection:shell/2</seealso>
-	 </item>
+	 <item><p>This message requests that the user default shell
+	 is started at the other end. This event is sent as a result of calling
+	 <seealso marker="ssh_connection#shell-2"> ssh_connection:shell/2</seealso>.
+	 </p></item>
 
 	 <tag><c><![CDATA[{window_change, ssh_channel_id(), integer() = CharWidth,
 	 integer() = RowHeight, integer() = PixWidth, integer() = PixHeight}]]></c></tag>
-	 <item> When the window (terminal) size changes on the client
-	 side, it MAY send a message to the server side to inform it of
-	 the new dimensions. There is currently no API function to generate this
-	 event.</item>
+	 <item><p>When the window (terminal) size changes on the client
+	 side, it <em>can</em> send a message to the server side to inform it of
+	 the new dimensions. No API function generates this event.</p></item>
      
 	 <tag><c><![CDATA[{exec, ssh_channel_id(),
 	 boolean() = WantReply, string() = Cmd}]]></c></tag>
-	 <item> This message will request that the server starts
-	 execution of the given command. This event is sent as result of calling <seealso
-	 marker="ssh_connection#exec-4">ssh_connection:exec/4 </seealso>
-	 </item>
+	 <item><p>This message requests that the server starts
+	 execution of the given command. This event is sent as a result of calling <seealso
+	 marker="ssh_connection#exec-4">ssh_connection:exec/4 </seealso>.
+	 </p></item>
        </taglist>
      </item>
    </taglist>
@@ -183,80 +201,83 @@
    
    <func>
      <name>adjust_window(ConnectionRef, ChannelId, NumOfBytes) -> ok</name>
-     <fsummary>Adjusts the SSH flowcontrol window. </fsummary>
+     <fsummary>Adjusts the SSH flow control window.</fsummary>
      <type>
-       <v> ConnectionRef = ssh_connection_ref() </v>
-       <v> ChannelId = ssh_channel_id() </v>
-       <v> NumOfBytes = integer()</v>
+       <v>ConnectionRef = ssh_connection_ref()</v>
+       <v>ChannelId = ssh_channel_id()</v>
+       <v>NumOfBytes = integer()</v>
      </type>
       <desc>
-	<p>Adjusts the SSH flowcontrol window. This shall be done by both client and server side channel processes.</p>
+	<p>Adjusts the SSH flow control window. This is to be done by both the
+	client- and server-side channel processes.</p>
 	
-	<note><p>Channels implemented with the <seealso marker="ssh_channel"> ssh_channel
-	behavior</seealso> will normaly not need to call this function as flow control
-	will be handled by the behavior. The behavior will adjust the window every time
+	<note><p>Channels implemented with the <seealso marker="ssh_channel"> ssh_channel</seealso>
+	behavior do not normally need to call this function as flow control
+	is handled by the behavior. The behavior adjusts the window every time
 	the callback <seealso marker="ssh_channel#Module:handle_ssh_msg-2">
-	handle_ssh_msg/2 </seealso> has returned after processing channel data</p> </note>
+	handle_ssh_msg/2</seealso> returns after processing channel data.</p></note>
       </desc>
    </func>
    
    <func>
      <name>close(ConnectionRef, ChannelId) -> ok</name>
-     <fsummary>Sends a close message on the channel <c>ChannelId</c>. </fsummary>
+     <fsummary>Sends a close message on the channel <c>ChannelId</c>.</fsummary>
      <type>
-       <v> ConnectionRef = ssh_connection_ref() </v>
-       <v> ChannelId = ssh_channel_id()</v>
+       <v>ConnectionRef = ssh_connection_ref()</v>
+       <v>ChannelId = ssh_channel_id()</v>
      </type>
      <desc>
-       <p>A server or client channel process can choose to close their session by sending a close event.
+       <p>A server- or client-channel process can choose to close their session by
+       sending a close event.
        </p>
 
-       <note><p>This function will be called by the ssh_channel
-       behavior when the channel is terminated see <seealso
-       marker="ssh_channel"> ssh_channel(3) </seealso> so channels implemented with the
-       behavior should not call this function explicitly.</p></note>
+       <note><p>This function is called by the <c>ssh_channel</c>
+       behavior when the channel is terminated, see <seealso
+       marker="ssh_channel"> ssh_channel(3)</seealso>. Thus, channels implemented
+       with the behavior are not to call this function explicitly.</p></note>
      </desc>
    </func>
    
    <func>
-     <name>exec(ConnectionRef, ChannelId, Command, TimeOut) -> ssh_request_status() | {error, reason()} </name>
-     <fsummary>Request that the server start the execution of the given command.  </fsummary>
+     <name>exec(ConnectionRef, ChannelId, Command, TimeOut) -> ssh_request_status() |
+     {error, reason()}</name>
+     <fsummary>Requests that the server starts the execution of the given command.</fsummary>
      <type>
-       <v> ConnectionRef = ssh_connection_ref() </v>
-       <v> ChannelId = ssh_channel_id()</v>
-       <v> Command = string()</v>
-       <v>Timeout = timeout() </v>
+       <v>ConnectionRef = ssh_connection_ref()</v>
+       <v>ChannelId = ssh_channel_id()</v>
+       <v>Command = string()</v>
+       <v>Timeout = timeout()</v>
      </type>
      <desc>
-       <p>Should be called by a client channel process to request that the server starts execution of the
-       given command, the result will be several messages according to the following pattern. Note
-       that the last message will be a channel close message, as the exec request is a one time
-       execution that closes the channel when it is done.</p>
+       <p>Is to be called by a client-channel process to request that the server starts
+       executing the given command. The result is several messages according to the
+       following pattern. The last message is a channel close message, as the <c>exec</c>
+       request is a one-time execution that closes the channel when it is done.</p>
 
        <taglist>
-	 <tag><c> N x {ssh_cm, ssh_connection_ref(),
-	 {data, ssh_channel_id(), ssh_data_type_code(), binary() = Data}} </c></tag>
-	 <item>The result of executing the command may be only one line
-	 or thousands of lines depending on the command.</item>
+	 <tag><c>N x {ssh_cm, ssh_connection_ref(),
+	 {data, ssh_channel_id(), ssh_data_type_code(), binary() = Data}}</c></tag>
+	 <item><p>The result of executing the command can be only one line
+	 or thousands of lines depending on the command.</p></item>
 
 	 <tag><c>0 or 1 x {ssh_cm, ssh_connection_ref(), {eof, ssh_channel_id()}}</c></tag>
-	 <item>Indicates that no more data will be sent.</item>
+	 <item><p>Indicates that no more data is to be sent.</p></item>
 
 	 <tag><c>0 or 1 x {ssh_cm,
 	 ssh_connection_ref(), {exit_signal,
 	 ssh_channel_id(), string() = ExitSignal, string() = ErrorMsg, string() = LanguageString}}</c></tag>
-	 <item>Not all systems send signals. For details on valid string
-	 values see RFC 4254 section 6.10 </item>
+	 <item><p>Not all systems send signals. For details on valid string
+	 values, see RFC 4254, Section 6.10</p></item>
 	 
 	  <tag><c>0 or 1 x {ssh_cm, ssh_connection_ref(), {exit_status,
 	  ssh_channel_id(), integer() = ExitStatus}}</c></tag>
-	  <item>It is recommended by the <c>ssh connection protocol</c> that this
-	  message shall be sent, but that may not always be the case.</item>
+	  <item><p>It is recommended by the SSH Connection Protocol to send this
+	  message, but that is not always the case.</p></item>
 
-	  <tag><c> 1 x {ssh_cm, ssh_connection_ref(),
+	  <tag><c>1 x {ssh_cm, ssh_connection_ref(),
 	  {closed, ssh_channel_id()}}</c></tag>
-	  <item>Indicates that the ssh channel started for the
-	  execution of the command has now been shutdown.</item>
+	  <item><p>Indicates that the <c>ssh_channel</c> started for the
+	  execution of the command has now been shut down.</p></item>
        </taglist>
      </desc>
    </func>
@@ -265,78 +286,72 @@
      <name>exit_status(ConnectionRef, ChannelId, Status) -> ok</name>
      <fsummary>Sends the exit status of a command to the client.</fsummary>
      <type>
-       <v> ConnectionRef = ssh_connection_ref() </v>
-       <v> ChannelId = ssh_channel_id()</v>
-       <v> Status = integer()</v>
+       <v>ConnectionRef = ssh_connection_ref() </v>
+       <v>ChannelId = ssh_channel_id()</v>
+       <v>Status = integer()</v>
      </type>
      <desc>
-       <p>Should be called by a server channel process to sends the exit status of a command to the client.</p>
+       <p>Is to be called by a server-channel process to send the exit status of a command
+       to the client.</p>
      </desc>
    </func>
    
    <func>
-     <name>ptty_alloc(ConnectionRef, ChannelId, Options) ->  </name>
-     <name>ptty_alloc(ConnectionRef, ChannelId, Options, Timeout) ->  > ssh_request_status() | {error, reason()}  </name>
-       <fsummary>Send status replies to requests that want such replies. </fsummary>
+     <name>ptty_alloc(ConnectionRef, ChannelId, Options) -></name>
+     <name>ptty_alloc(ConnectionRef, ChannelId, Options, Timeout) ->  > ssh_request_status() |
+     {error, reason()}</name>
+       <fsummary>Sends an SSH Connection Protocol <c>pty_req</c>,
+       to allocate a pseudo-terminal.</fsummary>
       <type>
-	<v> ConnectionRef = ssh_connection_ref() </v>
-	<v> ChannelId = ssh_channel_id()</v>
-	<v> Options = proplists:proplist()</v>
+	<v>ConnectionRef = ssh_connection_ref()</v>
+	<v>ChannelId = ssh_channel_id()</v>
+	<v>Options = proplists:proplist()</v>
       </type>
       <desc>
-	<p> Sends a SSH Connection Protocol pty_req, to allocate a pseudo tty.
-	Should be called by a SSH client process.
-	Options are:
-	</p>
+	<p>Sends an SSH Connection Protocol <c>pty_req</c>, to allocate a pseudo-terminal.
+	Is to be called by an SSH client process.</p>
+	<p>Options:</p>
 
 	<taglist>
 	  <tag>{term, string()}</tag>
-	  <item>
-	    Defaults to os:getenv("TERM") or "vt100" if it is undefined. 
-	  </item>
+	  <item><p>Defaults to <em>os:getenv("TERM")</em> or <em>vt100</em>
+	  if it is undefined.</p></item>
+
 	  <tag>{width, integer()}</tag>
-	  <item>
-	    Defaults to 80 if pixel_width is not defined.
-	  </item>
+	  <item><p>Defaults to 80 if <c>pixel_width</c> is not defined.</p></item>
+
 	  <tag>{height, integer()}</tag>
-	  <item>
-	    Defaults to 24 if pixel_height is not defined.
-	  </item>
+	  <item><p>Defaults to 24 if <c>pixel_height</c> is not defined.</p></item>
+
 	  <tag>{pixel_width, integer()}</tag>
-	  <item>
-	    Is disregarded if width is defined.
-	  </item>
+	  <item><p>Is disregarded if <c>width</c> is defined.</p></item>
+
 	  <tag>{pixel_height, integer()}</tag>
-	  <item>
-	    Is disregarded if height is defined.
-	  </item>
+	  <item><p>Is disregarded if <c>height</c> is defined.</p></item>
+
 	  <tag>{pty_opts, [{posix_atom(), integer()}]}</tag>
-	  <item>
-	    Option may be an empty list, otherwise
-	    see possible POSIX names in section 8 in <url href="http://www.ietf.org/rfc/rfc4254.txt"> RFC 4254</url>.
+	  <item><p>Option can be an empty list. Otherwise, see possible <em>POSIX</em> names
+	  in Section 8 in <url href="http://www.ietf.org/rfc/rfc4254.txt"> RFC 4254</url>.</p>
 	  </item>
 	 </taglist>
-
       </desc>
      </func>
 
-   <func>
+     <func>
        <name>reply_request(ConnectionRef, WantReply, Status, ChannelId) -> ok</name>
-       <fsummary>Send status replies to requests that want such replies. </fsummary>
+       <fsummary>Sends status replies to requests that want such replies.</fsummary>
       <type>
-	<v> ConnectionRef = ssh_connection_ref() </v>
-	<v> WantReply =  boolean()</v>
-	<v> Status = ssh_request_status() </v>
-	<v> ChannelId = ssh_channel_id()</v>
+	<v>ConnectionRef = ssh_connection_ref()</v>
+	<v>WantReply =  boolean()</v>
+	<v>Status = ssh_request_status()</v>
+	<v>ChannelId = ssh_channel_id()</v>
       </type>
       <desc>
 	<p>Sends status replies to requests where the requester has
-	stated that they want a status report e.i .<c> WantReply = true</c>,
-	if <c> WantReply</c> is false calling this function will be a
-	"noop". Should be called while handling an ssh connection
-	protocol message containing a <c>WantReply</c> boolean
-	value.
-	</p>
+	stated that it wants a status report, that is, <c>WantReply = true</c>.
+	If <c>WantReply</c> is <c>false</c>, calling this function becomes a
+	"noop". Is to be called while handling an SSH Connection
+	Protocol message containing a <c>WantReply</c> boolean value.</p>
       </desc>
      </func>
     
@@ -346,98 +361,97 @@
        <name>send(ConnectionRef, ChannelId, Type, Data) -></name>
        <name>send(ConnectionRef, ChannelId, Type, Data, TimeOut) ->
        ok | {error, timeout} | {error, closed}</name>
-       <fsummary>Sends channel data </fsummary>
+       <fsummary>Sends channel data.</fsummary>
        <type>
-	<v> ConnectionRef = ssh_connection_ref() </v>
-	<v> ChannelId = ssh_channel_id()</v>
-	<v> Data = binary()</v>
-	<v> Type = ssh_data_type_code()</v>
-	<v> Timeout = timeout()</v>
+	<v>ConnectionRef = ssh_connection_ref()</v>
+	<v>ChannelId = ssh_channel_id()</v>
+	<v>Data = binary()</v>
+	<v>Type = ssh_data_type_code()</v>
+	<v>Timeout = timeout()</v>
        </type>
        <desc>
-	 <p>Should be called by client- and server channel processes to send data to each other.
+	 <p>Is to be called by client- and server-channel processes to send data to each other.
 	 </p>
        </desc>
      </func>
      
      <func>
        <name>send_eof(ConnectionRef, ChannelId) -> ok | {error, closed}</name>
-       <fsummary>Sends eof on the channel <c>ChannelId</c>.  </fsummary>
+       <fsummary>Sends EOF on channel <c>ChannelId</c>.</fsummary>
        <type>
-	<v> ConnectionRef = ssh_connection_ref() </v>
-	<v> ChannelId = ssh_channel_id()</v>
+	<v>ConnectionRef = ssh_connection_ref()</v>
+	<v>ChannelId = ssh_channel_id()</v>
        </type>
        <desc>
-	 <p>Sends eof on the channel <c>ChannelId</c>.
-	 </p>
+	 <p>Sends EOF on channel <c>ChannelId</c>.</p>
        </desc>
      </func>
 
      <func>
-       <name>session_channel(ConnectionRef, Timeout) -> </name>
+       <name>session_channel(ConnectionRef, Timeout) -></name>
        <name>session_channel(ConnectionRef, InitialWindowSize,
        MaxPacketSize, Timeout) -> {ok, ssh_channel_id()} | {error, reason()}</name>
-       <fsummary>Opens a channel for a ssh session. </fsummary>
+       <fsummary>Opens a channel for an SSH session.</fsummary>
        <type>
-	 <v> ConnectionRef = ssh_connection_ref()</v>
-	 <v> InitialWindowSize = integer() </v>
-	 <v> MaxPacketSize = integer() </v>
-	 <v> Timeout = timeout()</v>
-	 <v> Reason = term() </v>
+	 <v>ConnectionRef = ssh_connection_ref()</v>
+	 <v>InitialWindowSize = integer()</v>
+	 <v>MaxPacketSize = integer()</v>
+	 <v>Timeout = timeout()</v>
+	 <v>Reason = term()</v>
        </type>
        <desc>
 	 <p>Opens a channel for an SSH session. The channel id returned from this function
-	 is the id used as input to the other funtions in this module.
-	</p>
+	 is the id used as input to the other functions in this module.</p>
        </desc>
      </func>
 
     <func>
-      <name>setenv(ConnectionRef, ChannelId, Var, Value, TimeOut) -> ssh_request_status() | {error, reason()} </name>
-      <fsummary> Environment variables may be passed to the
+      <name>setenv(ConnectionRef, ChannelId, Var, Value, TimeOut) -> ssh_request_status() |
+      {error, reason()}</name>
+      <fsummary>Environment variables can be passed to the
       shell/command to be started later.</fsummary>
       <type>
-	<v> ConnectionRef = ssh_connection_ref() </v>
-	<v> ChannelId = ssh_channel_id()</v>
-	<v> Var = string()</v>
-	<v> Value = string()</v>
-	<v> Timeout = timeout()</v>
+	<v>ConnectionRef = ssh_connection_ref()</v>
+	<v>ChannelId = ssh_channel_id()</v>
+	<v>Var = string()</v>
+	<v>Value = string()</v>
+	<v>Timeout = timeout()</v>
       </type>
       <desc>
-	<p> Environment variables may be passed before starting the
-	shell/command. Should be called by a client channel processes.
-	</p>
+	<p>Environment variables can be passed before starting the
+	shell/command. Is to be called by a client channel processes.</p>
       </desc>
     </func>
     
     <func>
       <name>shell(ConnectionRef, ChannelId) -> ssh_request_status() | {error, closed}
       </name>
-      <fsummary> Requests that the user's default shell (typically
-      defined in /etc/passwd in UNIX systems) shall be executed at the server
-      end. </fsummary>
+      <fsummary>Requests that the user default shell (typically defined in
+      /etc/passwd in Unix systems) is to be executed at the server end.</fsummary>
        <type>
-	 <v> ConnectionRef = ssh_connection_ref() </v>
-	 <v> ChannelId = ssh_channel_id()</v>
+	 <v>ConnectionRef = ssh_connection_ref()</v>
+	 <v>ChannelId = ssh_channel_id()</v>
        </type>
        <desc>
-	 <p> Should be called by a client channel process to request that the user's default shell (typically
-	 defined in /etc/passwd in UNIX systems) shall be executed at the server end.
-	 </p>
+	 <p>Is to be called by a client channel process to request that the user default
+	 shell (typically defined in /etc/passwd in Unix systems) is executed
+	 at the server end.</p>
        </desc>
     </func>
 
     <func>
-      <name>subsystem(ConnectionRef, ChannelId, Subsystem, Timeout) -> ssh_request_status() | {error, reason()} </name>
-      <fsummary>  </fsummary>
+      <name>subsystem(ConnectionRef, ChannelId, Subsystem, Timeout) -> ssh_request_status() |
+      {error, reason()}</name>
+      <fsummary>Requests to execute a predefined subsystem on the server.</fsummary>
        <type>
-	 <v> ConnectionRef = ssh_connection_ref() </v>
-	 <v> ChannelId = ssh_channel_id()</v>
-	 <v> Subsystem = string()</v>
-	 <v> Timeout = timeout()</v>
+	 <v>ConnectionRef = ssh_connection_ref()</v>
+	 <v>ChannelId = ssh_channel_id()</v>
+	 <v>Subsystem = string()</v>
+	 <v>Timeout = timeout()</v>
        </type>
        <desc>
-	 <p> Should be called by a client channel process for requesting to execute a predefined subsystem on the server.
+	 <p>Is to be called by a client-channel process for requesting to execute a predefined
+	 subsystem on the server.
 	 </p>
        </desc>
     </func>
diff --git a/lib/ssh/doc/src/ssh_server_key_api.xml b/lib/ssh/doc/src/ssh_server_key_api.xml
index f7133e4ba5..73dd90c962 100644
--- a/lib/ssh/doc/src/ssh_server_key_api.xml
+++ b/lib/ssh/doc/src/ssh_server_key_api.xml
@@ -23,68 +23,81 @@
       The Initial Developer of the Original Code is Ericsson AB.
     </legalnotice>
     <title>ssh_server_key_api</title>
+    <prepared></prepared>
+    <docno></docno>
+    <date></date>
+    <rev></rev>
   </header>
   <module>ssh_server_key_api</module>
   <modulesummary>
     -behaviour(ssh_server_key_api).
   </modulesummary>
   <description>
-    <p>  Behaviour describing the API for an SSH server's public key handling. By implementing the callbacks defined
-    in this behavior it is possible to customize the SSH server's public key
-    handling. By default the SSH application implements this behavior
-    with help of the standard openssh files, see <seealso marker="SSH_app"> ssh(6)</seealso>.</p>
+    <p>Behaviour describing the API for public key handling of an SSH server. By implementing
+    the callbacks defined in this behavior, the public key handling of an SSH server can
+    be customized. By default the SSH application implements this behavior
+    with help of the standard OpenSSH files,
+    see the <seealso marker="SSH_app"> ssh(6)</seealso> application manual.</p>
   </description>
 
   <section>
-    <title>DATA TYPES </title>
+    <title>DATA TYPES</title>
 
-    <p>Type definitions that are used more than once in this module
-    and/or abstractions to indicate the intended use of the data
-    type. For more details on public key data types 
-    see the <seealso marker="public_key:public_key_records"> public_key user's guide.</seealso>
+    <p>Type definitions that are used more than once in this module,
+    or abstractions to indicate the intended use of the data
+    type, or both. For more details on public key data types,
+    refer to Section 2 Public Key Records in the
+    <seealso marker="public_key:public_key_records"> public_key user's guide</seealso>.
     </p>
 
-    <p> boolean() = true | false</p>
-    <p> string() = [byte()]</p>
-    <p> public_key() =  #'RSAPublicKey'{} | {integer(),  #'Dss-Parms'{}} | term()</p>
-    <p> private_key() =  #'RSAPrivateKey'{} | #'DSAPrivateKey'{} | term()</p>
-    <p> public_key_algorithm() =  'ssh-rsa' | 'ssh-dss' | atom()</p>
+    <taglist>
+      <tag><c>boolean() =</c></tag>
+      <item><p><c>true | false</c></p></item>
+      <tag><c>string() =</c></tag>
+      <item><p><c>[byte()]</c></p></item>
+      <tag><c>public_key() =</c></tag>
+      <item><p><c>#'RSAPublicKey'{}| {integer(),  #'Dss-Parms'{}}| term()</c></p></item>
+      <tag><c>private_key() =</c></tag>
+      <item><p><c>#'RSAPrivateKey'{} | #'DSAPrivateKey'{} | term()</c></p></item>
+      <tag><c>public_key_algorithm() =</c></tag>
+      <item><p><c>'ssh-rsa'| 'ssh-dss' | atom()</c></p></item>
+    </taglist>
   </section>
-
+  
   <funcs>
     <func>
       <name>Module:host_key(Algorithm, DaemonOptions) ->
       {ok, Key} | {error, Reason}</name>
-      <fsummary>Fetches the hosts private key </fsummary>
+      <fsummary>Fetches the host’s private key.</fsummary>
       <type>
 	<v>Algorithm = public_key_algorithm()</v>
-	<d> Host key algorithm. Should support 'ssh-rsa' | 'ssh-dss' but additional algorithms
+	<d>Host key algorithm. Is to support <c>'ssh-rsa' | 'ssh-dss'</c>, but more algorithms
 	can be handled.</d>
-	<v> DaemonOptions = proplists:proplist() </v>
-	<d>Options provided to  <seealso marker="ssh#daemon-2">ssh:daemon/[2,3]</seealso></d>
-	<v> Key = private_key()</v>
-	<d> The private key of the host matching the <c>Algorithm</c></d>
-	<v>Reason = term() </v>
+	<v>DaemonOptions = proplists:proplist()</v>
+	<d>Options provided to  <seealso marker="ssh#daemon-2">ssh:daemon/[2,3]</seealso>.</d>
+	<v>Key = private_key()</v>
+	<d>Private key of the host matching the <c>Algorithm</c>.</d>
+	<v>Reason = term()</v>
       </type>
       <desc>
-	  <p>Fetches the hosts private key</p>
+	  <p>Fetches the private key of the host.</p>
       </desc>
     </func>
 
     <func>
       <name>Module:is_auth_key(Key, User, DaemonOptions) -> Result</name>
-      <fsummary> Checks if the user key is authorized</fsummary>
+      <fsummary>Checks if the user key is authorized.</fsummary>
       <type>
-	<v> Key = public_key() </v>
-	<d> Normally an RSA or DSA public key but handling of other public keys can be added</d>
-	<v> User = string()</v>
-	<d> The user owning the public key</d>
-	<v> DaemonOptions = proplists:proplist() </v>
-	<d> Options provided to  <seealso marker="ssh#daemon-2">ssh:daemon/[2,3]</seealso></d>
-	<v> Result = boolean()</v>
+	<v>Key = public_key()</v>
+	<d>Normally an RSA or DSA public key, but handling of other public keys can be added</d>
+	<v>User = string()</v>
+	<d>User owning the public key.</d>
+	<v>DaemonOptions = proplists:proplist()</v>
+	<d>Options provided to  <seealso marker="ssh#daemon-2">ssh:daemon/[2,3]</seealso>.</d>
+	<v>Result = boolean()</v>
       </type>
       <desc>
-	 <p> Checks if the user key is authorized </p>
+	 <p>Checks if the user key is authorized.</p>
       </desc>
     </func>
 
diff --git a/lib/ssh/doc/src/ssh_sftp.xml b/lib/ssh/doc/src/ssh_sftp.xml
index ab111562f9..fc418bc934 100644
--- a/lib/ssh/doc/src/ssh_sftp.xml
+++ b/lib/ssh/doc/src/ssh_sftp.xml
@@ -23,131 +23,173 @@
 
     <title>ssh_sftp</title>
     <prepared>OTP</prepared>
+    <docno></docno>
     <date>2005-09-22</date>
+    <rev></rev>
     <file>ssh_sftp.sgml</file>
   </header>
   <module>ssh_sftp</module>
   <modulesummary>SFTP client.</modulesummary>
   <description>
-    <p>This module implements an SFTP (SSH FTP) client. SFTP is a
+    <p>This module implements an SSH FTP (SFTP) client. SFTP is a
     secure, encrypted file transfer service available for
     SSH.</p>
   </description>
   
  <section>
-    <title>DATA TYPES </title>
-    <p>Type definitions that are used more than once in this module
-    and/or abstractions to indicate the intended use of the data type:
+    <title>DATA TYPES</title>
+    <p>Type definitions that are used more than once in this module,
+    or abstractions to indicate the intended use of the data type, or both:
     </p>
-    <p><c>ssh_connection_ref() - opaque to the user
-    returned by ssh:connect/3</c></p>
-    <p><c>timeout() =  infinity | integer() - in milliseconds.</c></p>    
+
+    <taglist>
+      <tag><c>ssh_connection_ref() =</c></tag>
+      <item><p>opaque() - as returned by <c>ssh:connect/3</c></p></item>
+      <tag><c>timeout()</c></tag>
+      <item><p>= <c>infinity | integer() in milliseconds. Default infinity.</c></p></item>
+    </taglist>
    </section>
 
  <section>
-    <title>TIMEOUTS </title>
-    <p>If the request functions for the SFTP channel return {error, timeout}
-    it does not guarantee that the request did not reach the server and was
-    not performed, it only means that we did not receive an answer from the
-    server within the time that was expected.</p>
+    <title>Time-outs</title>
+    <p>If the request functions for the SFTP channel return <c>{error, timeout}</c>,
+    it does not guarantee that the request never reached the server and was
+    not performed. It only means that no answer was received from the
+    server within the expected time.</p>
    </section>
 
   <funcs>
+     <func>
+      <name>apread(ChannelPid, Handle, Position, Len) -> {async, N} | {error, Error}</name>
+      <v>ChannelPid = pid()</v>
+        <v>Handle = term()</v>
+        <v>Position = integer()</v>
+        <v>Len = integer()</v>
+        <v>N = term()</v>
+        <v>Reason = term()</v>
+
+	<desc><p>The <c><![CDATA[apread]]></c> function reads from a specified position,
+	combining the <c><![CDATA[position]]></c> and <c><![CDATA[aread]]></c> functions.</p>
+	<p><seealso marker="#apread-4">ssh_sftp:apread/4</seealso></p> </desc>
+      </func>
+
+      <func>
+	<name>apwrite(ChannelPid, Handle, Position, Data) -> ok | {error, Reason}</name>
+	<fsummary>Writes asynchronously to an open file.</fsummary>
+	<type>
+	  <v>ChannelPid = pid()</v>
+	  <v>Handle = term()</v>
+	  <v>Position = integer()</v>
+	  <v>Len = integer()</v>
+	  <v>Data = binary()</v>
+	  <v>Timeout = timeout()</v>
+	  <v>Reason = term()</v>
+	</type>
+	<desc>
+	  <p><c><![CDATA[apwrite]]></c> writes on a specified position, combining
+          the <c><![CDATA[position]]></c> and <c><![CDATA[awrite]]></c> operations.</p>
+	<p><seealso marker="#awrite-3">ssh_sftp:awrite/3</seealso> </p></desc>
+      </func>
+      
+      <func>
+	<name>aread(ChannelPid, Handle, Len) -> {async, N} | {error, Error}</name>
+	<fsummary>Reads asynchronously from an open file.</fsummary>
+	<type>
+	  <v>ChannelPid = pid()</v>
+	  <v>Handle = term()</v>
+	  <v>Position = integer()</v>
+	  <v>Len = integer()</v>
+	  <v>N = term()</v>
+	  <v>Reason = term()</v>
+	</type>
+	<desc>
+	  <p>Reads from an open file, without waiting for the result. If the
+          handle is valid, the function returns <c><![CDATA[{async, N}]]></c>, where <c>N</c>
+          is a term guaranteed to be unique between calls of <c><![CDATA[aread]]></c>.
+          The actual data is sent as a message to the calling process. This
+          message has the form <c><![CDATA[{async_reply, N, Result}]]></c>, where
+          <c><![CDATA[Result]]></c> is the result from the read, either <c><![CDATA[{ok, Data}]]></c>,
+          <c><![CDATA[eof]]></c>, or <c><![CDATA[{error, Error}]]></c>.</p>
+      </desc>
+    </func>
+
+  
+
     <func>
-      <name>start_channel(ConnectionRef) -> </name>
-      <name>start_channel(ConnectionRef, Options) -> </name>
-      <name>start_channel(Host, Options) -></name>
-      <name>start_channel(Host, Port, Options) -> {ok, Pid} | {ok, Pid, ConnectionRef} |
-      {error, Reason}</name>
-      <fsummary>Starts a SFTP client</fsummary>
+      <name>awrite(ChannelPid, Handle, Data) -> ok | {error, Reason}</name>
+      <fsummary>Writes asynchronously to an open file.</fsummary>
       <type>
-        <v>Host = string()</v>
-        <v>ConnectionRef = ssh_connection_ref()</v>
-        <v>Port = integer()</v>
-        <v>Options = [{Option, Value}]</v>
+        <v>ChannelPid = pid()</v>
+        <v>Handle = term()</v>
+        <v>Position = integer()</v>
+        <v>Len = integer()</v>
+        <v>Data = binary()</v>
+	<v>Timeout = timeout()</v>
         <v>Reason = term()</v>
       </type>
       <desc>
-	<p>If no connection reference is provided, a connection is set
-	up and the new connection is returned.  An SSH channel process
-	is started to handle the communication with the SFTP server.
-	The returned pid for this process should be used as input to
-	all other API functions in this module.</p>
-
-	<p>Options are:</p>
-	<taglist>
-          <tag><c><![CDATA[{timeout, timeout()}]]></c></tag>
-	  <item>
-	    <p>The timeout is passed to the ssh_channel start function,
-	    and defaults to infinity.</p>
-	  </item>
-	  <tag>
-	    <p><c><![CDATA[{sftp_vsn, integer()}]]></c></p>
-	  </tag>
-	  <item>
-	    <p>
-	      Desired SFTP protocol version.
-	      The actual version will be the minimum of
-	      the desired version and the maximum supported
-	      versions by the SFTP server.
-	    </p>
-	  </item>
-	</taglist>
-	<p>All other options are  directly passed to
-	<seealso marker="ssh">ssh:connect/3</seealso> or ignored if a
-	connection is already provided. </p>
+        <p>Writes to an open file, without waiting for the result. If the
+          handle is valid, the function returns <c><![CDATA[{async, N}]]></c>, where <c>N</c>
+          is a term guaranteed to be unique between calls of
+          <c><![CDATA[awrite]]></c>. The result of the <c><![CDATA[write]]></c> operation is sent
+          as a message to the calling process. This message has the form
+          <c><![CDATA[{async_reply, N, Result}]]></c>, where <c><![CDATA[Result]]></c> is the result
+          from the write, either <c><![CDATA[ok]]></c>, or <c><![CDATA[{error, Error}]]></c>.</p>
       </desc>
     </func>
 
     <func>
-      <name>stop_channel(ChannelPid) -> ok</name>
-      <fsummary>Stops the SFTP client channel.</fsummary>
+      <name>close(ChannelPid, Handle) -></name>
+      <name>close(ChannelPid, Handle, Timeout) -> ok | {error, Reason}</name>
+      <fsummary>Closes an open handle.</fsummary>
       <type>
         <v>ChannelPid = pid()</v>
+        <v>Handle = term()</v>
+	<v>Timeout = timeout()</v>
+        <v>Reason = term()</v>
       </type>
       <desc>
-	<p>Stops an SFTP channel. Does not close the SSH connetion.
-	Use <seealso marker="ssh">ssh:close/1</seealso> to close it.</p>
+        <p>Closes a handle to an open file or directory on the server.</p>
       </desc>
     </func>
-  
+
     <func>
-      <name>read_file(ChannelPid, File) -> </name>
-      <name>read_file(ChannelPid, File, Timeout) -> {ok, Data} | {error, Reason}</name>
-      <fsummary>Read a file</fsummary>
+      <name>delete(ChannelPid, Name) -></name>
+      <name>delete(ChannelPid, Name, Timeout) -> ok | {error, Reason}</name>
+      <fsummary>Deletes a file.</fsummary>
       <type>
-	<v>ChannelPid = pid()</v>
-	<v>File = string()</v>
-        <v>Data = binary()</v>
+        <v>ChannelPid = pid()</v>
+        <v>Name = string()</v>
 	<v>Timeout = timeout()</v>
-	<v>Reason = term()</v>
+        <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Reads a file from the server, and returns the data in a binary,
-          like <c><![CDATA[file:read_file/1]]></c>.</p>
+        <p>Deletes the file specified by <c><![CDATA[Name]]></c>, like
+	   <seealso marker="kernel:file#delete-1">file:delete/1</seealso></p>
       </desc>
     </func>
+
     <func>
-      <name>write_file(ChannelPid, File, Iolist) -> </name>
-      <name>write_file(ChannelPid, File, Iolist, Timeout) -> ok | {error, Reason}</name>
-      <fsummary>Write a file</fsummary>
+      <name>del_dir(ChannelPid, Name) -></name>
+      <name>del_dir(ChannelPid, Name, Timeout) -> ok | {error, Reason}</name>
+      <fsummary>Deletes an empty directory.</fsummary>
       <type>
         <v>ChannelPid = pid()</v>
-        <v>File = string()</v>
-        <v>Iolist = iolist()</v>
+        <v>Name = string()</v>
 	<v>Timeout = timeout()</v>
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Writes a file to the server, like
-        <c><![CDATA[file:write_file/2]]></c>.  The file is created if
-        it does not exist or is owerwritten if it does.</p>
+	<p>Deletes a directory specified by <c><![CDATA[Name]]></c>.
+	The directory must be empty before it can be successfully deleted.
+	</p>
       </desc>
     </func>
-    <func>
-      <name>list_dir(ChannelPid, Path) -> </name>
+
+     <func>
+      <name>list_dir(ChannelPid, Path) -></name>
       <name>list_dir(ChannelPid, Path, Timeout) -> {ok, Filenames} | {error, Reason}</name>
-      <fsummary>List directory</fsummary>
+      <fsummary>Lists the directory.</fsummary>
       <type>
         <v>ChannelPid = pid()</v>
         <v>Path = string()</v>
@@ -161,10 +203,45 @@
           filenames as a list of strings.</p>
       </desc>
     </func>
+
+    <func>
+      <name>make_dir(ChannelPid, Name) -></name>
+      <name>make_dir(ChannelPid, Name, Timeout) -> ok | {error, Reason}</name>
+      <fsummary>Creates a directory.</fsummary>
+      <type>
+        <v>ChannelPid = pid()</v>
+        <v>Name = string()</v>
+	<v>Timeout = timeout()</v>
+        <v>Reason = term()</v>
+      </type>
+      <desc>
+        <p>Creates a directory specified by <c><![CDATA[Name]]></c>. <c><![CDATA[Name]]></c>
+          must be a full path to a new directory. The directory can only be
+	created in an existing directory.</p>
+      </desc>
+    </func>
+
     <func>
-      <name>open(ChannelPid, File, Mode) -> </name>
+      <name>make_symlink(ChannelPid, Name, Target) -></name>
+      <name>make_symlink(ChannelPid, Name, Target, Timeout) -> ok | {error, Reason}</name>
+      <fsummary>Creates a symbolic link.</fsummary>
+      <type>
+        <v>ChannelPid = pid()</v>
+        <v>Name = string()</v>
+        <v>Target = string()</v>
+        <v>Reason = term()</v>
+      </type>
+      <desc>
+        <p>Creates a symbolic link pointing to <c><![CDATA[Target]]></c> with the
+          name <c><![CDATA[Name]]></c>, like
+	   <seealso marker="kernel:file#make_symlink-2">file:make_symlink/2</seealso></p>
+      </desc>
+    </func>
+
+       <func>
+      <name>open(ChannelPid, File, Mode) -></name>
       <name>open(ChannelPid, File, Mode, Timeout) -> {ok, Handle} | {error, Reason}</name>
-      <fsummary>Open a file and return a handle</fsummary>
+      <fsummary>Opens a file and returns a handle.</fsummary>
       <type>
         <v>ChannelPid = pid()</v>
         <v>File = string()</v>
@@ -175,14 +252,14 @@
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Opens a file on the server, and returns a handle that
+        <p>Opens a file on the server and returns a handle, which
           can be used for reading or writing.</p>
       </desc>
     </func>
     <func>
-      <name>opendir(ChannelPid, Path) -> </name>
+      <name>opendir(ChannelPid, Path) -></name>
       <name>opendir(ChannelPid, Path, Timeout) -> {ok, Handle} | {error, Reason}</name>
-      <fsummary>Open a directory and return a handle</fsummary>
+      <fsummary>Opens a directory and returns a handle.</fsummary>
       <type>
         <v>ChannelPid = pid()</v>
         <v>Path = string()</v>
@@ -190,7 +267,7 @@
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Opens a handle to a directory on the server, the handle
+        <p>Opens a handle to a directory on the server. The handle
           can be used for reading directory contents.</p>
       </desc>
     </func>
@@ -198,14 +275,15 @@
     <func>
       <name>open_tar(ChannelPid, Path, Mode) -></name>
       <name>open_tar(ChannelPid, Path, Mode, Timeout) -> {ok, Handle} | {error, Reason}</name>
-      <fsummary>Opens a tar file on the server to which <v>ChannelPid</v> is connected and returns a handle</fsummary>
+      <fsummary>Opens a tar file on the server to which <c>ChannelPid</c>
+      is connected and returns a handle.</fsummary>
       <type>
         <v>ChannelPid = pid()</v>
         <v>Path = string()</v>
-	<v>Mode = [read] | [write] | [read,EncryptOpt] | [write,DecryptOpt] </v>
+	<v>Mode = [read] | [write] | [read,EncryptOpt] | [write,DecryptOpt]</v>
 	<v>EncryptOpt = {crypto,{InitFun,EncryptFun,CloseFun}}</v>
 	<v>DecryptOpt = {crypto,{InitFun,DecryptFun}}</v>
-	<v>InitFun = (fun() -> {ok,CryptoState}) | (fun() -> {ok,CryptoState,ChunkSize}) </v>
+	<v>InitFun = (fun() -> {ok,CryptoState}) | (fun() -> {ok,CryptoState,ChunkSize})</v>
 	<v>CryptoState = any()</v>
 	<v>ChunkSize = undefined | pos_integer()</v>
 	<v>EncryptFun = (fun(PlainBin,CryptoState) -> EncryptResult)</v>
@@ -219,113 +297,86 @@
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Opens a handle to a tar file on the server associated with <c>ChannelPid</c>. The handle
-	can be used for remote tar creation and extraction as defined by the
-	<seealso marker="stdlib:erl_tar#init/3">erl_tar:init/3</seealso> function.
+        <p>Opens a handle to a tar file on the server, associated with <c>ChannelPid</c>.
+	The handle can be used for remote tar creation and extraction, as defined by the
+	<seealso marker="stdlib:erl_tar#init-3">erl_tar:init/3</seealso> function.
 	</p>
-	<p>An example of writing and then reading a tar file:</p>
-        <code type="none">
-          {ok,HandleWrite} = ssh_sftp:open_tar(ChannelPid, ?tar_file_name, [write]),
-          ok = erl_tar:add(HandleWrite, .... ),
-          ok = erl_tar:add(HandleWrite, .... ),
-              ...
-          ok = erl_tar:add(HandleWrite, .... ),
-          ok = erl_tar:close(HandleWrite),
-
-          %% And for reading
-          {ok,HandleRead} = ssh_sftp:open_tar(ChannelPid, ?tar_file_name, [read]),
-          {ok,NameValueList} = erl_tar:extract(HandleRead,[memory]),
-          ok = erl_tar:close(HandleRead),
-        </code>
-
-	<p>The <c>crypto</c> mode option is applied to the generated stream of bytes just prior to sending
-	them to the sftp server.  This is intended for encryption but could of course be used for other
+
+	<p> For code exampel see Section
+	<seealso marker="using_ssh">SFTP Client with TAR Compression and Encryption</seealso> in
+	the ssh Users Guide. </p>
+
+	<p>The <c>crypto</c> mode option is applied to the generated stream of bytes prior to sending
+	them to the SFTP server. This is intended for encryption but can be used for other
 	purposes.
 	</p>
 	<p>The <c>InitFun</c> is applied once
-	prior to any other crypto operation. The returned <c>CryptoState</c> is then folded into
-	repeated applications of the <c>EncryptFun</c> or <c>DecryptFun</c>.  The binary returned
-	from those Funs are sent further to the remote sftp server. Finally - if doing encryption
-	- the <c>CloseFun</c> is applied to the last piece of data.  The <c>CloseFun</c> is
+	prior to any other <c>crypto</c> operation. The returned <c>CryptoState</c> is then folded into
+	repeated applications of the <c>EncryptFun</c> or <c>DecryptFun</c>. The binary returned
+	from those funs are sent further to the remote SFTP server. Finally, if doing encryption,
+	the <c>CloseFun</c> is applied to the last piece of data. The <c>CloseFun</c> is
 	responsible for padding (if needed) and encryption of that last piece.
 	</p>
 	<p>The <c>ChunkSize</c> defines the size of the <c>PlainBin</c>s that <c>EncodeFun</c> is applied
-	to. If the <c>ChunkSize</c> is <c>undefined</c> the size of the <c>PlainBin</c>s varies because
-	this is	inteded for stream crypto while a fixed  <c>ChunkSize</c> is intended for block crypto. It
-	is possible to change the  <c>ChunkSize</c>s in the return from the <c>EncryptFun</c> or
-	<c>DecryptFun</c>. It is in fact possible to change the value between <c>pos_integer()</c> and
-	<c>undefined</c>.
+	to. If the <c>ChunkSize</c> is <c>undefined</c>, the size of the <c>PlainBin</c>s varies,
+	because this is	intended for stream crypto, whereas a fixed <c>ChunkSize</c> is intended for block crypto.
+	<c>ChunkSize</c>s can be changed in the return from the <c>EncryptFun</c> or
+	<c>DecryptFun</c>. The value can be changed between <c>pos_integer()</c> and <c>undefined</c>.
 	</p>
-	<p>The write and read example above can be extended with encryption and decryption:</p>
-        <code type="none">
-          %% First three parameters depending on which crypto type we select:
-          Key = &lt;&lt;"This is a 256 bit key. abcdefghi">>,
-          Ivec0 = crypto:rand_bytes(16),
-          DataSize = 1024,  % DataSize rem 16 = 0 for aes_cbc
-
-          %% Initialization of the CryptoState, in this case it is the Ivector.
-          InitFun = fun() -> {ok, Ivec0, DataSize} end,
-
-          %% How to encrypt:
-          EncryptFun = 
-              fun(PlainBin,Ivec) -> 
-                   EncryptedBin = crypto:block_encrypt(aes_cbc256, Key, Ivec, PlainBin),
-                   {ok, EncryptedBin, crypto:next_iv(aes_cbc,EncryptedBin)}
-              end,
-
-          %% What to do with the very last block:
-          CloseFun = 
-              fun(PlainBin, Ivec) ->
-                    EncryptedBin = crypto:block_encrypt(aes_cbc256, Key, Ivec, 
-                                                     pad(16,PlainBin) %% Last chunk
-                                                     ),
-                    {ok, EncryptedBin} 
-            end,
-
-          Cw = {InitFun,EncryptFun,CloseFun},
-          {ok,HandleWrite} = ssh_sftp:open_tar(ChannelPid, ?tar_file_name, [write,{crypto,Cw}]),
-          ok = erl_tar:add(HandleWrite, .... ),
-          ok = erl_tar:add(HandleWrite, .... ),
-              ...
-          ok = erl_tar:add(HandleWrite, .... ),
-          ok = erl_tar:close(HandleWrite),
-
-          %% And for decryption (in this crypto example we could use the same InitFun
-          %% as for encryption):
-          DecryptFun = 
-              fun(EncryptedBin,Ivec) ->
-                   PlainBin = crypto:block_decrypt(aes_cbc256, Key, Ivec, EncryptedBin),
-                   {ok, PlainBin, crypto:next_iv(aes_cbc,EncryptedBin)}
-              end,
-
-          Cr = {InitFun,DecryptFun},
-          {ok,HandleRead} = ssh_sftp:open_tar(ChannelPid, ?tar_file_name, [read,{crypto,Cw}]),
-          {ok,NameValueList} = erl_tar:extract(HandleRead,[memory]),
-          ok = erl_tar:close(HandleRead),
-        </code>
+
       </desc>
     </func>
 
     <func>
-      <name>close(ChannelPid, Handle) -> </name>
-      <name>close(ChannelPid, Handle, Timeout) -> ok | {error, Reason}</name>
-      <fsummary>Close an open handle</fsummary>
+      <name>position(ChannelPid, Handle, Location) -></name>
+      <name>position(ChannelPid, Handle, Location, Timeout) -> {ok, NewPosition | {error, Error}</name>
+      <fsummary>Sets the file position of a file.</fsummary>
       <type>
         <v>ChannelPid = pid()</v>
         <v>Handle = term()</v>
+        <v>Location = Offset
+ | {bof, Offset} | {cur, Offset} | {eof, Offset} | bof | cur | eof</v>
+        <v>Offset = integer()</v>
 	<v>Timeout = timeout()</v>
+        <v>NewPosition = integer()</v>
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Closes a handle to an open file or directory on the server.</p>
+        <p>Sets the file position of the file referenced by <c><![CDATA[Handle]]></c>.
+          Returns <c><![CDATA[{ok, NewPosition}]]></c> (as an absolute offset) if
+          successful, otherwise <c><![CDATA[{error, Reason}]]></c>. <c><![CDATA[Location]]></c> is
+          one of the following:</p>
+        <taglist>
+          <tag><c><![CDATA[Offset]]></c></tag>
+          <item>
+            <p>The same as <c><![CDATA[{bof, Offset}]]></c>.</p>
+          </item>
+          <tag><c><![CDATA[{bof, Offset}]]></c></tag>
+          <item>
+            <p>Absolute offset.</p>
+          </item>
+          <tag><c><![CDATA[{cur, Offset}]]></c></tag>
+          <item>
+            <p>Offset from the current position.</p>
+          </item>
+          <tag><c><![CDATA[{eof, Offset}]]></c></tag>
+          <item>
+            <p>Offset from the end of file.</p>
+          </item>
+          <tag><c><![CDATA[bof | cur | eof]]></c></tag>
+          <item>
+            <p>The same as eariler with <c><![CDATA[Offset]]></c> 0,
+	    that is, <c><![CDATA[{bof, 0} | {cur, 0} | {eof, 0}]]></c>.
+	    </p>
+          </item>
+        </taglist>
       </desc>
     </func>
+
     <func>
-      <name>read(ChannelPid, Handle, Len) -> </name>
-      <name>read(ChannelPid, Handle, Len, Timeout) -> {ok, Data} | eof | {error, Error}</name>
-      <name>pread(ChannelPid, Handle, Position, Len) -> </name>
+      <name>pread(ChannelPid, Handle, Position, Len) -></name>
       <name>pread(ChannelPid, Handle, Position, Len, Timeout) -> {ok, Data} | eof | {error, Error}</name>
-      <fsummary>Read from an open file</fsummary>
+      <fsummary>Reads from an open file.</fsummary>
       <type>
         <v>ChannelPid = pid()</v>
         <v>Handle = term()</v>
@@ -336,47 +387,16 @@
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Reads <c><![CDATA[Len]]></c> bytes from the file referenced by
-          <c><![CDATA[Handle]]></c>. Returns <c><![CDATA[{ok, Data}]]></c>, <c><![CDATA[eof]]></c>, or
-          <c><![CDATA[{error, Reason}]]></c>. If the file is opened with <c><![CDATA[binary]]></c>,
-          <c><![CDATA[Data]]></c> is a binary, otherwise it is a string.</p>
-        <p>If the file is read past eof, only the remaining bytes
-          will be read and returned. If no bytes are read, <c><![CDATA[eof]]></c>
-          is returned.</p>
-        <p>The <c><![CDATA[pread]]></c> function reads from a specified position,
-          combining the <c><![CDATA[position]]></c> and <c><![CDATA[read]]></c> functions.</p>
-      </desc>
-    </func>
-    <func>
-      <name>aread(ChannelPid, Handle, Len) -> {async, N} | {error, Error}</name>
-      <name>apread(ChannelPid, Handle, Position, Len) -> {async, N} | {error, Error}</name>
-      <fsummary>Read asynchronously from an open file</fsummary>
-      <type>
-        <v>ChannelPid = pid()</v>
-        <v>Handle = term()</v>
-        <v>Position = integer()</v>
-        <v>Len = integer()</v>
-        <v>N = term()</v>
-        <v>Reason = term()</v>
-      </type>
-      <desc>
-        <p>Reads from an open file, without waiting for the result. If the
-          handle is valid, the function returns <c><![CDATA[{async, N}]]></c>, where N
-          is a term guaranteed to be unique between calls of <c><![CDATA[aread]]></c>. 
-          The actual data is sent as a message to the calling process. This
-          message has the form <c><![CDATA[{async_reply, N, Result}]]></c>, where
-          <c><![CDATA[Result]]></c> is the result from the read, either <c><![CDATA[{ok, Data}]]></c>,
-          or <c><![CDATA[eof]]></c>, or <c><![CDATA[{error, Error}]]></c>.</p>
-        <p>The <c><![CDATA[apread]]></c> function reads from a specified position,
-          combining the <c><![CDATA[position]]></c> and <c><![CDATA[aread]]></c> functions.</p>
+	<p>The <c><![CDATA[pread]]></c> function reads from a specified position,
+	combining the <c><![CDATA[position]]></c> and <c><![CDATA[read]]></c> functions.</p>
+	<p><seealso marker="#read-4">ssh_sftp:read/4</seealso></p>
       </desc>
     </func>
+
     <func>
-      <name>write(ChannelPid, Handle, Data) -></name>
-      <name>write(ChannelPid, Handle, Data, Timeout) -> ok | {error, Error}</name>
-      <name>pwrite(ChannelPid, Handle, Position, Data) -> ok </name>
+      <name>pwrite(ChannelPid, Handle, Position, Data) -> ok</name>
       <name>pwrite(ChannelPid, Handle, Position, Data, Timeout) -> ok | {error, Error}</name>
-      <fsummary>Write to an open file</fsummary>
+      <fsummary>Writes to an open file.</fsummary>
       <type>
         <v>ChannelPid = pid()</v>
         <v>Handle = term()</v>
@@ -386,94 +406,59 @@
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Writes<c><![CDATA[data]]></c> to the file referenced by <c><![CDATA[Handle]]></c>.
-          The file should be opened with <c><![CDATA[write]]></c> or <c><![CDATA[append]]></c>
-          flag. Returns <c><![CDATA[ok]]></c> if successful or S<c><![CDATA[{error, Reason}]]></c>
-          otherwise.</p>
-        <p>Typical error reasons are:</p>
-        <taglist>
-          <tag><c><![CDATA[ebadf]]></c></tag>
-          <item>
-            <p>The file is not opened for writing.</p>
-          </item>
-          <tag><c><![CDATA[enospc]]></c></tag>
-          <item>
-            <p>There is a no space left on the device.</p>
-          </item>
-        </taglist>
+	<p>The <c><![CDATA[pread]]></c> function writes to a specified position,
+	combining the <c><![CDATA[position]]></c> and <c><![CDATA[write]]></c> functions.</p>
+	<p><seealso marker="#write-3">ssh_sftp:write/3</seealso></p>
       </desc>
     </func>
-    <func>
-      <name>awrite(ChannelPid, Handle, Data) -> ok | {error, Reason} </name>
-      <name>apwrite(ChannelPid, Handle, Position, Data) -> ok | {error, Reason}</name>
-      <fsummary>Write asynchronously to an open file</fsummary>
+
+
+     <func>
+      <name>read(ChannelPid, Handle, Len) -></name>
+      <name>read(ChannelPid, Handle, Len, Timeout) -> {ok, Data} | eof | {error, Error}</name>
+      <fsummary>Reads from an open file.</fsummary>
       <type>
         <v>ChannelPid = pid()</v>
         <v>Handle = term()</v>
         <v>Position = integer()</v>
         <v>Len = integer()</v>
-        <v>Data = binary()</v>
 	<v>Timeout = timeout()</v>
+        <v>Data = string() | binary()</v>
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Writes to an open file, without waiting for the result. If the
-          handle is valid, the function returns <c><![CDATA[{async, N}]]></c>, where N
-          is a term guaranteed to be unique between calls of
-          <c><![CDATA[awrite]]></c>. The result of the <c><![CDATA[write]]></c> operation is sent
-          as a message to the calling process. This message has the form
-          <c><![CDATA[{async_reply, N, Result}]]></c>, where <c><![CDATA[Result]]></c> is the result
-          from the write, either <c><![CDATA[ok]]></c>, or <c><![CDATA[{error, Error}]]></c>.</p>
-        <p>The <c><![CDATA[apwrite]]></c> writes on a specified position, combining
-          the <c><![CDATA[position]]></c> and <c><![CDATA[awrite]]></c> operations.</p>
+        <p>Reads <c><![CDATA[Len]]></c> bytes from the file referenced by
+          <c><![CDATA[Handle]]></c>. Returns <c><![CDATA[{ok, Data}]]></c>, <c><![CDATA[eof]]></c>, or
+          <c><![CDATA[{error, Reason}]]></c>. If the file is opened with <c><![CDATA[binary]]></c>,
+          <c><![CDATA[Data]]></c> is a binary, otherwise it is a string.</p>
+        <p>If the file is read past <c>eof</c>, only the remaining bytes
+          are read and returned. If no bytes are read, <c><![CDATA[eof]]></c>
+          is returned.</p>
       </desc>
     </func>
-    <func>
-      <name>position(ChannelPid, Handle, Location) -> </name>
-      <name>position(ChannelPid, Handle, Location, Timeout) -> {ok, NewPosition | {error, Error}</name>
-      <fsummary>Seek position in open file</fsummary>
+
+      <func>
+      <name>read_file(ChannelPid, File) -></name>
+      <name>read_file(ChannelPid, File, Timeout) -> {ok, Data} | {error, Reason}</name>
+      <fsummary>Reads a file.</fsummary>
       <type>
-        <v>ChannelPid = pid()</v>
-        <v>Handle = term()</v>
-        <v>Location = Offset | {bof, Offset} | {cur, Offset} | {eof, Offset} | bof | cur | eof</v>
-        <v>Offset = integer()</v>
+	<v>ChannelPid = pid()</v>
+	<v>File = string()</v>
+        <v>Data = binary()</v>
 	<v>Timeout = timeout()</v>
-        <v>NewPosition = integer()</v>
-        <v>Reason = term()</v>
+	<v>Reason = term()</v>
       </type>
       <desc>
-        <p>Sets the file position of the file referenced by <c><![CDATA[Handle]]></c>.
-          Returns <c><![CDATA[{ok, NewPosition}]]></c> (as an absolute offset) if
-          successful, otherwise <c><![CDATA[{error, Reason}]]></c>. <c><![CDATA[Location]]></c> is
-          one of the following:</p>
-        <taglist>
-          <tag><c><![CDATA[Offset]]></c></tag>
-          <item>
-            <p>The same as <c><![CDATA[{bof, Offset}]]></c>.</p>
-          </item>
-          <tag><c><![CDATA[{bof, Offset}]]></c></tag>
-          <item>
-            <p>Absolute offset.</p>
-          </item>
-          <tag><c><![CDATA[{cur, Offset}]]></c></tag>
-          <item>
-            <p>Offset from the current position.</p>
-          </item>
-          <tag><c><![CDATA[{eof, Offset}]]></c></tag>
-          <item>
-            <p>Offset from the end of file.</p>
-          </item>
-          <tag><c><![CDATA[bof | cur | eof]]></c></tag>
-          <item>
-            <p>The same as above with <c><![CDATA[Offset]]></c> 0.</p>
-          </item>
-        </taglist>
+        <p>Reads a file from the server, and returns the data in a binary,
+          like
+	   <seealso marker="kernel:file#read_file-1">file:read_file/1</seealso></p>
       </desc>
     </func>
-    <func>
-      <name>read_file_info(ChannelPid, Name) -> </name>
+
+      <func>
+      <name>read_file_info(ChannelPid, Name) -></name>
       <name>read_file_info(ChannelPid, Name, Timeout) -> {ok, FileInfo} | {error, Reason}</name>
-      <fsummary>Get information about a file</fsummary>
+      <fsummary>Gets information about a file.</fsummary>
       <type>
         <v>ChannelPid = pid()</v>
         <v>Name = string()</v>
@@ -484,138 +469,191 @@
       </type>
       <desc>
         <p>Returns a <c><![CDATA[file_info]]></c> record from the file specified by
-          <c><![CDATA[Name]]></c> or <c><![CDATA[Handle]]></c>, like <c><![CDATA[file:read_file_info/2]]></c>.</p>
+          <c><![CDATA[Name]]></c> or <c><![CDATA[Handle]]></c>,
+	like <seealso marker="kernel:file#read_file_info-2">file:read_file_info/2</seealso></p>
       </desc>
     </func>
-    <func>
-      <name>read_link_info(ChannelPid, Name) -> {ok, FileInfo} | {error, Reason}</name>
-      <name>read_link_info(ChannelPid, Name, Timeout) -> {ok, FileInfo} | {error, Reason}</name>
-      <fsummary>Get information about a symbolic link</fsummary>
+
+     <func>
+      <name>read_link(ChannelPid, Name) -></name>
+      <name>read_link(ChannelPid, Name, Timeout) -> {ok, Target} | {error, Reason}</name>
+      <fsummary>Reads symbolic link.</fsummary>
       <type>
         <v>ChannelPid = pid()</v>
         <v>Name = string()</v>
-        <v>Handle = term()</v>
-	<v>Timeout = timeout()</v>
-        <v>FileInfo = record()</v>
+        <v>Target = string()</v>
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Returns a <c><![CDATA[file_info]]></c> record from the symbolic
-          link specified by <c><![CDATA[Name]]></c> or <c><![CDATA[Handle]]></c>, like
-          <c><![CDATA[file:read_link_info/2]]></c>.</p>
+        <p>Reads the link target from the symbolic link specified
+          by <c><![CDATA[name]]></c>, like
+	  <seealso marker="kernel:file#read_link-1">file:read_link/1</seealso></p>
       </desc>
     </func>
-    <func>
-      <name>write_file_info(ChannelPid, Name, Info) -> </name>
-      <name>write_file_info(ChannelPid, Name, Info, Timeout) -> ok | {error, Reason}</name>
-      <fsummary>Write information for a file</fsummary>
+
+     <func>
+      <name>read_link_info(ChannelPid, Name) -> {ok, FileInfo} | {error, Reason}</name>
+      <name>read_link_info(ChannelPid, Name, Timeout) -> {ok, FileInfo} | {error, Reason}</name>
+      <fsummary>Gets information about a symbolic link.</fsummary>
       <type>
         <v>ChannelPid = pid()</v>
         <v>Name = string()</v>
-        <v>Info = record()</v>
+        <v>Handle = term()</v>
 	<v>Timeout = timeout()</v>
+        <v>FileInfo = record()</v>
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Writes file information from a <c><![CDATA[file_info]]></c> record to the
-          file specified by <c><![CDATA[Name]]></c>, like <c><![CDATA[file:write_file_info]]></c>.</p>
+        <p>Returns a <c><![CDATA[file_info]]></c> record from the symbolic
+          link specified by <c><![CDATA[Name]]></c> or <c><![CDATA[Handle]]></c>, like
+	<seealso marker="kernel:file#read_link_info-2">file:read_link_info/2</seealso></p>
       </desc>
     </func>
+
     <func>
-      <name>read_link(ChannelPid, Name) -> </name>
-      <name>read_link(ChannelPid, Name, Timeout) -> {ok, Target} | {error, Reason}</name>
-      <fsummary>Read symbolic link</fsummary>
+      <name>rename(ChannelPid, OldName, NewName) -> </name>
+      <name>rename(ChannelPid, OldName, NewName, Timeout) -> ok | {error, Reason}</name>
+      <fsummary>Renames a file.</fsummary>
       <type>
         <v>ChannelPid = pid()</v>
-        <v>Name = string()</v>
-        <v>Target = string()</v>
+        <v>OldName = string()</v>
+        <v>NewName = string()</v>
+	<v>Timeout = timeout()</v>
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Reads the link target from the symbolic link specified
-          by <c><![CDATA[name]]></c>, like <c><![CDATA[file:read_link/1]]></c>.</p>
+        <p>Renames a file named <c><![CDATA[OldName]]></c> and gives it the name
+          <c><![CDATA[NewName]]></c>, like
+	    <seealso marker="kernel:file#rename-2">file:rename/2</seealso></p>
       </desc>
     </func>
+
     <func>
-      <name>make_symlink(ChannelPid, Name, Target) -> </name>
-      <name>make_symlink(ChannelPid, Name, Target, Timeout) -> ok | {error, Reason}</name>
-      <fsummary>Create symbolic link</fsummary>
+      <name>start_channel(ConnectionRef) -></name>
+      <name>start_channel(ConnectionRef, Options) -></name>
+      <name>start_channel(Host, Options) -></name>
+      <name>start_channel(Host, Port, Options) -> {ok, Pid} | {ok, Pid, ConnectionRef} |
+      {error, Reason}</name>
+      <fsummary>Starts an SFTP client.</fsummary>
       <type>
-        <v>ChannelPid = pid()</v>
-        <v>Name = string()</v>
-        <v>Target = string()</v>
+        <v>Host = string()</v>
+        <v>ConnectionRef = ssh_connection_ref()</v>
+        <v>Port = integer()</v>
+        <v>Options = [{Option, Value}]</v>
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Creates a symbolic link pointing to <c><![CDATA[Target]]></c> with the
-          name <c><![CDATA[Name]]></c>, like <c><![CDATA[file:make_symlink/2]]></c>.</p>
+	<p>If no connection reference is provided, a connection is set
+	up, and the new connection is returned. An SSH channel process
+	is started to handle the communication with the SFTP server.
+	The returned <c>pid</c> for this process is to be used as input to
+	all other API functions in this module.</p>
+
+	<p>Options:</p>
+	<taglist>
+          <tag><c><![CDATA[{timeout, timeout()}]]></c></tag>
+	  <item>
+	    <p>The time-out is passed to the <c>ssh_channel</c> start function,
+	    and defaults to <c>infinity</c>.</p>
+	  </item>
+	  <tag>
+	    <c><![CDATA[{sftp_vsn, integer()}]]></c>
+	  </tag>
+	  <item>
+	    <p>
+	      Desired SFTP protocol version.
+	      The actual version is the minimum of
+	      the desired version and the maximum supported
+	      versions by the SFTP server.
+	    </p>
+	  </item>
+	</taglist>
+	<p>All other options are directly passed to
+	<seealso marker="ssh">ssh:connect/3</seealso> or ignored if a
+	connection is already provided.</p>
       </desc>
     </func>
-    <func>
-      <name>rename(ChannelPid, OldName, NewName) ->  </name>
-      <name>rename(ChannelPid, OldName, NewName, Timeout) -> ok | {error, Reason}</name>
-      <fsummary>Rename a file</fsummary>
+
+     <func>
+      <name>stop_channel(ChannelPid) -> ok</name>
+      <fsummary>Stops the SFTP client channel.</fsummary>
       <type>
         <v>ChannelPid = pid()</v>
-        <v>OldName = string()</v>
-        <v>NewName = string()</v>
-	<v>Timeout = timeout()</v>
-        <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Renames a file named <c><![CDATA[OldName]]></c>, and gives it the name
-          <c><![CDATA[NewName]]></c>, like <c><![CDATA[file:rename/2]]></c></p>
+	<p>Stops an SFTP channel. Does not close the SSH connection.
+	Use <seealso marker="ssh#close-1">ssh:close/1</seealso> to close it.</p>
       </desc>
     </func>
+
     <func>
-      <name>delete(ChannelPid, Name) -> </name>
-      <name>delete(ChannelPid, Name, Timeout) -> ok | {error, Reason}</name>
-      <fsummary>Delete a file</fsummary>
+      <name>write(ChannelPid, Handle, Data) -></name>
+      <name>write(ChannelPid, Handle, Data, Timeout) -> ok | {error, Error}</name>
+      <fsummary>Writes to an open file.</fsummary>
       <type>
         <v>ChannelPid = pid()</v>
-        <v>Name = string()</v>
+        <v>Handle = term()</v>
+        <v>Position = integer()</v>
+        <v>Data = iolist()</v>
 	<v>Timeout = timeout()</v>
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Deletes the file specified by <c><![CDATA[Name]]></c>, like
-          <c><![CDATA[file:delete/1]]></c></p>
+        <p>Writes <c><![CDATA[data]]></c> to the file referenced by <c><![CDATA[Handle]]></c>.
+	The file is to be opened with <c><![CDATA[write]]></c> or <c><![CDATA[append]]></c>
+	flag. Returns <c><![CDATA[ok]]></c> if successful or <c><![CDATA[{error, Reason}]]></c>
+	otherwise.</p>
+        <p>Typical error reasons:</p>
+        <taglist>
+          <tag><c><![CDATA[ebadf]]></c></tag>
+          <item>
+            <p>File is not opened for writing.</p>
+          </item>
+          <tag><c><![CDATA[enospc]]></c></tag>
+          <item>
+            <p>No space is left on the device.</p>
+          </item>
+        </taglist>
       </desc>
     </func>
+    
     <func>
-      <name>make_dir(ChannelPid, Name) -> </name>
-      <name>make_dir(ChannelPid, Name, Timeout) -> ok | {error, Reason}</name>
-      <fsummary>Create a directory</fsummary>
+      <name>write_file(ChannelPid, File, Iolist) -></name>
+      <name>write_file(ChannelPid, File, Iolist, Timeout) -> ok | {error, Reason}</name>
+      <fsummary>Writes a file.</fsummary>
       <type>
         <v>ChannelPid = pid()</v>
-        <v>Name = string()</v>
+        <v>File = string()</v>
+        <v>Iolist = iolist()</v>
 	<v>Timeout = timeout()</v>
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Creates a directory specified by <c><![CDATA[Name]]></c>. <c><![CDATA[Name]]></c> should
-          be a full path to a new directory. The directory can only be
-          created in an existing directory.</p>
+        <p>Writes a file to the server, like <seealso
+        marker="kernel:file#write_file-2">file:write_file/2</seealso> The
+        file is created if it does not exist. The file is overwritten
+        if it exists.</p>
       </desc>
     </func>
+    
     <func>
-      <name>del_dir(ChannelPid, Name) -> </name>
-      <name>del_dir(ChannelPid, Name, Timeout) -> ok | {error, Reason}</name>
-      <fsummary>Delete an empty directory</fsummary>
+      <name>write_file_info(ChannelPid, Name, Info) -></name>
+      <name>write_file_info(ChannelPid, Name, Info, Timeout) -> ok | {error, Reason}</name>
+      <fsummary>Writes information for a file.</fsummary>
       <type>
         <v>ChannelPid = pid()</v>
         <v>Name = string()</v>
+        <v>Info = record()</v>
 	<v>Timeout = timeout()</v>
         <v>Reason = term()</v>
       </type>
       <desc>
-	<p>Deletes a directory specified by <c><![CDATA[Name]]></c>.
-	Note that the directory must be empty before it can be successfully deleted
-	</p>
+        <p>Writes file information from a <c><![CDATA[file_info]]></c> record to the
+	file specified by <c><![CDATA[Name]]></c>, like
+	<seealso marker="kernel:file#write_file_info-2">file:write_file_info/[2,3]</seealso></p>
       </desc>
     </func>
-  
   </funcs>
-   
+  
 </erlref>
 
diff --git a/lib/ssh/doc/src/ssh_sftpd.xml b/lib/ssh/doc/src/ssh_sftpd.xml
index 81c2acc575..8b2497e6a3 100644
--- a/lib/ssh/doc/src/ssh_sftpd.xml
+++ b/lib/ssh/doc/src/ssh_sftpd.xml
@@ -22,67 +22,73 @@
     </legalnotice>
 
     <title>ssh_sftpd</title>
+    <prepared></prepared>
+    <docno></docno>
     <date>2005-09-22</date>
+    <rev></rev>
     <file>ssh_sftpd.sgml</file>
   </header>
   <module>ssh_sftpd</module>
-  <modulesummary>Specifies the channel process to handle an sftp subsystem.</modulesummary>
+  <modulesummary>Specifies the channel process to handle an SFTP subsystem.</modulesummary>
   <description>
-    <p>Specifies a channel process to handle a sftp subsystem.</p>
+    <p>Specifies a channel process to handle an SFTP subsystem.</p>
   </description>
 
   <section>
-    <title>DATA TYPES </title>
-    <p><c>subsystem_spec() = {subsystem_name(), {channel_callback(), channel_init_args()}} </c></p>
-    <p><c>subsystem_name() =  "sftp"</c></p>
-    <p><c>channel_callback() = atom()</c> - Name of the erlang module implementing the
-    subsystem using the ssh_channel behavior see
-    <seealso marker="ssh_channel">ssh_channel(3)</seealso></p>
-    <p><c> channel_init_args() = list() - The one given as argument to function
-    subsystem_spec/1.</c></p>  
+    <title>DATA TYPES</title>
+    <taglist>
+      <tag><c>subsystem_spec() =</c></tag>
+      <item><p><c>{subsystem_name(), {channel_callback(), channel_init_args()}}</c></p></item>
+      <tag><c>subsystem_name() =</c></tag>
+      <item><p><c>"sftp"</c></p></item>
+      <tag><c>channel_callback() =</c></tag>
+      <item><p><c>atom()</c> - Name of the Erlang module implementing the subsystem using the
+      <c>ssh_channel</c> behavior, see the
+      <seealso marker="ssh_channel">ssh_channel(3)</seealso> manual page.</p></item>
+      <tag><c>channel_init_args() =</c></tag>
+      <item><p><c>list()</c> - The one given as argument to function <c>subsystem_spec/1</c>.</p></item>
+    </taglist>
   </section>
   <funcs>
     <func>
       <name>subsystem_spec(Options) -> subsystem_spec()</name>
-      <fsummary>Returns the subsystem specification that allows an ssh daemon to handle the subsystem "sftp".</fsummary>
+      <fsummary>Returns the subsystem specification that allows an SSH daemon to handle the subsystem "sftp".</fsummary>
       <type>
 	<v>Options = [{Option, Value}]</v>
       </type>
       <desc>
-        <p>Should be used together with ssh:daemon/[1,2,3]</p>
-        <p>Options are:</p>
+        <p>Is to be used together with <c>ssh:daemon/[1,2,3]</c></p>
+        <p>Options:</p>
         <taglist>
           <tag><c><![CDATA[{cwd, String}]]></c></tag>
           <item>
-            <p>Sets the initial current working directory for the
-              server.</p>
+            <p>Sets the initial current working directory for the server.</p>
           </item>
           <tag><c><![CDATA[{file_handler, CallbackModule}]]></c></tag>
           <item>
 	    <p>Determines which module to call for accessing
-	    the file server. The default value is <c>ssh_sftpd_file</c> that uses the
-	    <seealso marker="kernel:file">file</seealso> and <seealso marker="stdlib:filelib">filelib</seealso> API:s to access the standard OTP file
-	    server. This option may be used to plug in
+	    the file server. The default value is <c>ssh_sftpd_file</c>, which uses the
+	    <seealso marker="kernel:file">file</seealso> and <seealso marker="stdlib:filelib">filelib</seealso>
+	    APIs to access the standard OTP file server. This option can be used to plug in
 	    other file servers.</p>
 	  </item>
 	  <tag><c><![CDATA[{max_files, Integer}]]></c></tag>
 	  <item>
 	    <p>The default value is <c>0</c>, which means that there is no upper limit.
-	    If supplied, the number of filenames returned to the sftp client per <c>READDIR</c>
+	    If supplied, the number of filenames returned to the SFTP client per <c>READDIR</c>
 	    request is limited to at most the given value.</p>
 	  </item>
 	  <tag><c><![CDATA[{root, String}]]></c></tag>
 	  <item>
-	    <p>Sets the sftp root directory. The user will then not be
-	    able to see any files above this root. If for instance
-	    the root is set to <c>/tmp</c> the user will see this
-	    directory as <c>/</c> and if the user does cd <c>/etc</c>
-	    the user will end up in <c>/tmp/etc</c>.
+	    <p>Sets the SFTP root directory. Then the user cannot see any files
+	    above this root. If, for example, the root directory is set to <c>/tmp</c>,
+	    then the user sees this directory as <c>/</c>. If the user then writes
+	    <c>cd /etc</c>, the user moves to <c>/tmp/etc</c>.
 	    </p>
 	  </item>
 	  <tag><c><![CDATA[{sftpd_vsn, integer()}]]></c></tag>
 	  <item>
-	    <p>Sets the sftp version to use, defaults to 5. Version 6 is under
+	    <p>Sets the SFTP version to use. Defaults to 5. Version 6 is under
 	    development and limited.</p>
 	  </item>
         </taglist>
diff --git a/lib/ssh/doc/src/usersguide.xml b/lib/ssh/doc/src/usersguide.xml
index 8ab14c2945..a9ed5fe21e 100644
--- a/lib/ssh/doc/src/usersguide.xml
+++ b/lib/ssh/doc/src/usersguide.xml
@@ -23,15 +23,16 @@
 
     <title>SSH User's Guide</title>
     <prepared>OTP Team</prepared>
+    <docno></docno>
     <date>2012-10-11</date>
+    <rev></rev>
     <file>usersguide.xml</file>
   </header>
   <description>
-    <p>The <em>SSH</em> application implements the SSH (Secure Shell) protocol and
-    provides an SFTP (Secret File Transfer Protocol) client and server.
+    <p>The Erlang Secure Shell (SSH) application, <c>ssh</c>, implements the SSH Transport Layer Protocol and
+    provides SSH File Transfer Protocol (SFTP) clients and servers.
     </p>
   </description>
   <xi:include href="introduction.xml"/>
-  <xi:include href="ssh_protocol.xml"/>
   <xi:include href="using_ssh.xml"/>
 </part>
diff --git a/lib/ssh/doc/src/using_ssh.xml b/lib/ssh/doc/src/using_ssh.xml
index 46178d4018..cd7b64ac43 100644
--- a/lib/ssh/doc/src/using_ssh.xml
+++ b/lib/ssh/doc/src/using_ssh.xml
@@ -22,64 +22,70 @@
 
     </legalnotice>
 
-    <title>Getting started</title>
+    <title>Getting Started</title>
+    <prepared></prepared>
+    <docno></docno>
+    <approved></approved>
+    <date></date>
+    <rev></rev>
     <file>using_ssh.xml</file>
   </header>
 
   <section>
-    <title> General information</title>
-    <p>The examples in the following sections use the utility function
-    <seealso marker="ssh#start-0"> ssh:start/0 </seealso> that starts
-    all needed applications (crypto, public_key and ssh). All examples
-    are run in an Erlang shell, or in a bash shell using openssh to
-    illustrate how the erlang ssh application can be used.  The
-    examples are run as the user otptest on a local network where the
-    user is authorized to login in over ssh to the host "tarlop". If
-    nothing else is stated it is persumed that the otptest user has an
-    entry in tarlop's authorized_keys file (may log in via ssh without
-    entering a password).  Also tarlop is a known host in the user
-    otptest's known_hosts file so that host verification can be done
-    without user interaction.
+    <title>General Information</title>
+    <p>The following examples use the utility function
+    <seealso marker="ssh#start-0"> ssh:start/0</seealso> to start
+    all needed applications (<c>crypto</c>, <c>public_key</c>, and <c>ssh</c>).
+    All examples are run in an Erlang shell, or in a bash shell, using <em>openssh</em>
+    to illustrate how the <c>ssh</c> application can be used. The
+    examples are run as the user <c>otptest</c> on a local network where the
+    user is authorized to log in over <c>ssh</c> to the host <em>tarlop</em>.
+    </p>
+    <p>If nothing else is stated, it is presumed that the <c>otptest</c> user
+    has an entry in the <em>authorized_keys</em> file of <em>tarlop</em>
+    (allowed to log in over <c>ssh</c> without entering a password).
+    Also, <em>tarlop</em> is a known host in the <c>known_hosts</c>
+    file of the user <c>otptest</c>. This means that host-verification
+    can be done without user-interaction.
     </p>
   </section>
 
   <section>
-    <title>Using the Erlang SSH Terminal Client</title>
+    <title>Using the Erlang ssh Terminal Client</title>
 
-    <p>The user otptest, that has bash as default shell, uses the
-    ssh:shell/1 client to connect to the openssh daemon running on a
-    host called tarlop. Note that currently this client is very simple
-    and you should not be expected to be as fancy as the openssh
-    client.</p>
+    <p>The user <c>otptest</c>, which has bash as default shell, uses the
+    <c>ssh:shell/1</c> client to connect to the <em>openssh</em> daemon running on a
+    host called <em>tarlop</em>:</p>
 
     <code type="erl" >
       1>  ssh:start().
       ok
       2> {ok, S} = ssh:shell("tarlop").
-      >pwd
+      otptest@tarlop:> pwd
       /home/otptest
-      >exit
+      otptest@tarlop:> exit
       logout
       3>
     </code>
   </section>
 
   <section>
-    <title>Running an Erlang SSH Daemon </title>
+    <marker id="Running an Erlang ssh Daemon"></marker>
+    <title>Running an Erlang ssh Daemon</title>
 
-    <p> The option system_dir must be a directory containing a host
-    key file and it defaults to /etc/ssh. For details see section
+    <p>The <c>system_dir</c> option must be a directory containing a host
+    key file and it defaults to <c>/etc/ssh</c>. For details, see Section
     Configuration Files in <seealso
     marker="SSH_app">ssh(6)</seealso>.
     </p>
 
-    <note><p>Normally the /etc/ssh directory is only readable by root. </p>
+    <note><p>Normally, the <c>/etc/ssh</c> directory is only readable by root.</p>
     </note>
 
-    <p> The option user_dir defaults to the users ~/.ssh  directory</p>
+    <p>The option <c>user_dir</c> defaults to directory <c>users ~/.ssh</c>.</p>
 
-    <p>In the following example we generate new keys and host keys as
-    to be able to run the example without having root privileges</p>
+    <p><em>Step 1.</em> To run the example without root privileges,
+    generate new keys and host keys:</p>
 
     <code>
       $bash> ssh-keygen -t rsa -f /tmp/ssh_daemon/ssh_host_rsa_key
@@ -88,19 +94,22 @@
       [...]
     </code>
 
-    <p>Create the file /tmp/otptest_user/.ssh/authorized_keys and add the content
-    of /tmp/otptest_user/.ssh/id_rsa.pub  Now we can do</p>
+    <p><em>Step 2.</em> Create the file <c>/tmp/otptest_user/.ssh/authorized_keys</c>
+    and add the content of <c>/tmp/otptest_user/.ssh/id_rsa.pub</c>.</p>
+
+    <p><em>Step 3.</em> Start the Erlang <c>ssh</c> daemon:</p>
 
     <code type="erl">
       1> ssh:start().
       ok
-      2> {ok, Sshd} = ssh:daemon(8989,  [{system_dir, "/tmp/ssh_daemon"},
-      {user_dir, "/tmp/otptest_user/.ssh"}]).
+      2> {ok, Sshd} = ssh:daemon(8989, [{system_dir, "/tmp/ssh_daemon"},
+                                        {user_dir, "/tmp/otptest_user/.ssh"}]).
       {ok,&lt;0.54.0>}
       3>
     </code>
 
-    <p>Use the openssh client from a shell to connect to the Erlang ssh daemon.</p>
+    <p><em>Step 4.</em> Use the <em>openssh</em> client from a shell to connect
+    to the Erlang <c>ssh</c> daemon:</p>
 
     <code>
       $bash> ssh tarlop -p 8989  -i /tmp/otptest_user/.ssh/id_rsa\
@@ -113,9 +122,12 @@
       1>
     </code>
 
-    <p>There are two ways of shutting down an SSH daemon</p>
+    <p>There are two ways of shutting down an <c>ssh</c> daemon,
+    see <em>Step 5a</em> and <em>Step 5b</em>.</p>
 
-    <p>1: Stops the listener, but leaves existing connections started by the listener up and running.</p>
+    <p><em>Step 5a.</em> Shut down the Erlang <c>ssh</c> daemon so that it
+    stops the listener but leaves existing connections, started by the listener,
+    operational:</p>
 
     <code type="erl">
       3> ssh:stop_listener(Sshd).
@@ -123,7 +135,8 @@
       4>
     </code>
 
-    <p>2: Stops the listener and all connections started by the listener.</p>
+    <p><em>Step 5b.</em> Shut down the Erlang <c>ssh</c> daemon so that it
+    stops the listener and all connections started by the listener:</p>
 
     <code type="erl">
       3> ssh:stop_daemon(Sshd)
@@ -134,17 +147,18 @@
   </section>
 
   <section>
-    <title>One Time Execution</title>
+    <title>One-Time Execution</title>
 
-    <p>In the following example the Erlang shell is the client process
-    that receives the channel replies. </p>
+    <p>In the following example, the Erlang shell is the client process
+    that receives the channel replies.</p>
 
-    <note><p> If you run this example
-    in your environment you may get fewer or more messages back as
-    this depends on the OS and shell on the machine running the ssh
-    daemon. See also <seealso marker="ssh_connection#exec-4">ssh_connection:exec/4</seealso>
+    <note><p>The number of received messages in this example depends on which OS
+    and which shell that is used on the machine running the <c>ssh</c> daemon.
+    See also <seealso marker="ssh_connection#exec-4">ssh_connection:exec/4</seealso>.
     </p></note>
 
+    <p>Do a one-time execution of a remote command over <c>ssh</c>:</p>
+
     <code type="erl" >
       1>  ssh:start().
       ok
@@ -162,7 +176,8 @@
       6>
     </code>
 
-    <p>Note only the channel is closed the connection is still up and can handle other channels</p>
+    <p>Notice that only the channel is closed. The connection is still up and can
+    handle other channels:</p>
 
     <code type="erl" >
       6> {ok, NewChannelId} =  ssh_connection:session_channel(ConnectionRef, infinity).
@@ -172,19 +187,22 @@
   </section>
 
   <section>
-    <title>SFTP (SSH File Transport Protocol) server</title>
+    <title>SFTP Server</title>
+
+    <p>Start the Erlang <c>ssh</c> daemon with the SFTP subsystem:</p>
 
     <code type="erl" >
       1> ssh:start().
       ok
-      2> ssh:daemon(8989,  [{system_dir, "/tmp/ssh_daemon"},
-         {user_dir, "/tmp/otptest_user/.ssh"},
-         {subsystems, [ssh_sftpd:subsystem_spec([{cwd, "/tmp/sftp/example"}])]}]).
+      2> ssh:daemon(8989, [{system_dir, "/tmp/ssh_daemon"},
+                           {user_dir, "/tmp/otptest_user/.ssh"},
+                           {subsystems, [ssh_sftpd:subsystem_spec([{cwd, "/tmp/sftp/example"}])
+                                        ]}]).
       {ok,&lt;0.54.0>}
       3>
     </code>
 
-    <p> Run the openssh sftp client</p>
+    <p>Run the OpenSSH SFTP client:</p>
 
     <code type="erl">
       $bash> sftp -oPort=8989 -o IdentityFile=/tmp/otptest_user/.ssh/id_rsa\
@@ -197,7 +215,9 @@
   </section>
 
   <section>
-    <title>SFTP (SSH File Transport Protocol) client</title>
+    <title>SFTP Client</title>
+
+    <p>Fetch a file with the Erlang SFTP client:</p>
 
     <code type="erl" >
       1> ssh:start().
@@ -210,10 +230,77 @@
   </section>
 
   <section>
-    <title>Creating a subsystem</title>
+    <title>SFTP Client with TAR Compression and Encryption</title>
+
+    <p>Example of writing and then reading a tar file follows:</p>
+    <code type="erlang">
+      {ok,HandleWrite} = ssh_sftp:open_tar(ChannelPid, ?tar_file_name, [write]),
+      ok = erl_tar:add(HandleWrite, .... ),
+      ok = erl_tar:add(HandleWrite, .... ),
+      ...
+      ok = erl_tar:add(HandleWrite, .... ),
+      ok = erl_tar:close(HandleWrite),
+
+      %% And for reading
+      {ok,HandleRead} = ssh_sftp:open_tar(ChannelPid, ?tar_file_name, [read]),
+      {ok,NameValueList} = erl_tar:extract(HandleRead,[memory]),
+      ok = erl_tar:close(HandleRead),
+    </code>
+
+    <p>The previous write and read example can be extended with encryption and decryption as follows:</p>
+    <code type="erlang">
+%% First three parameters depending on which crypto type we select:
+Key = &lt;&lt;"This is a 256 bit key. abcdefghi">>,
+Ivec0 = crypto:rand_bytes(16),
+DataSize = 1024,  % DataSize rem 16 = 0 for aes_cbc
+
+%% Initialization of the CryptoState, in this case it is the Ivector.
+InitFun = fun() -> {ok, Ivec0, DataSize} end,
+
+%% How to encrypt:
+EncryptFun =
+    fun(PlainBin,Ivec) ->
+        EncryptedBin = crypto:block_encrypt(aes_cbc256, Key, Ivec, PlainBin),
+        {ok, EncryptedBin, crypto:next_iv(aes_cbc,EncryptedBin)}
+    end,
+
+%% What to do with the very last block:
+CloseFun =
+    fun(PlainBin, Ivec) ->
+        EncryptedBin = crypto:block_encrypt(aes_cbc256, Key, Ivec,
+                                            pad(16,PlainBin) %% Last chunk
+                                           ),
+       {ok, EncryptedBin}
+    end,
+
+Cw = {InitFun,EncryptFun,CloseFun},
+{ok,HandleWrite} = ssh_sftp:open_tar(ChannelPid, ?tar_file_name, [write,{crypto,Cw}]),
+ok = erl_tar:add(HandleWrite, .... ),
+ok = erl_tar:add(HandleWrite, .... ),
+...
+ok = erl_tar:add(HandleWrite, .... ),
+ok = erl_tar:close(HandleWrite),
+
+%% And for decryption (in this crypto example we could use the same InitFun
+%% as for encryption):
+DecryptFun =
+    fun(EncryptedBin,Ivec) ->
+        PlainBin = crypto:block_decrypt(aes_cbc256, Key, Ivec, EncryptedBin),
+       {ok, PlainBin, crypto:next_iv(aes_cbc,EncryptedBin)}
+    end,
+
+Cr = {InitFun,DecryptFun},
+{ok,HandleRead} = ssh_sftp:open_tar(ChannelPid, ?tar_file_name, [read,{crypto,Cw}]),
+{ok,NameValueList} = erl_tar:extract(HandleRead,[memory]),
+ok = erl_tar:close(HandleRead),
+    </code>
+  </section>
+
+  <section>
+    <title>Creating a Subsystem</title>
 
-    <p>A very small SSH subsystem that echos N bytes could be implemented like this.
-    See also <seealso marker="ssh_channel"> ssh_channel(3)</seealso> </p>
+    <p>A small <c>ssh</c> subsystem that echoes N bytes can be implemented as shown
+    in the following example:</p>
 
     <code type="erl" >
 -module(ssh_echo_server).
@@ -267,14 +354,16 @@ terminate(_Reason, _State) ->
     ok.
  </code>
 
- <p>And run like this on the host tarlop with the keys generated in section 3.3</p>
+ <p>The subsystem can be run on the host <em>tarlop</em> with the generated keys,
+ as described in Section <seealso marker="#Running an Erlang ssh Daemon">
+ Running an Erlang ssh Daemon</seealso>:</p>
 
  <code type="erl" >
    1> ssh:start().
    ok
-   2>  ssh:daemon(8989, [{system_dir, "/tmp/ssh_daemon"},
-   {user_dir, "/tmp/otptest_user/.ssh"}
-   {subsystems, [{"echo_n", {ssh_echo_server, [10]}}]}]).
+   2> ssh:daemon(8989, [{system_dir, "/tmp/ssh_daemon"},
+                        {user_dir, "/tmp/otptest_user/.ssh"}
+                        {subsystems, [{"echo_n", {ssh_echo_server, [10]}}]}]).
    {ok,&lt;0.54.0>}
    3>
  </code>
@@ -293,6 +382,7 @@ terminate(_Reason, _State) ->
    {ssh_msg, &lt;0.57.0>, {closed, 0}}
    7> {error, closed} = ssh_connection:send(ConnectionRef, ChannelId, "10", infinity).
  </code>
+<p>See also <seealso marker="ssh_channel"> ssh_channel(3)</seealso>.</p>
 
 </section>
 
diff --git a/lib/ssh/src/Makefile b/lib/ssh/src/Makefile
index 90d71107ad..a06d8acfd4 100644
--- a/lib/ssh/src/Makefile
+++ b/lib/ssh/src/Makefile
@@ -75,7 +75,7 @@ MODULES= \
 	ssh_transport \
 	ssh_xfer
 
-PUBLIC_HRL_FILES= ssh.hrl ssh_userauth.hrl ssh_xfer.hrl
+HRL_FILES =
 
 ERL_FILES= \
 	$(MODULES:%=%.erl) \
@@ -95,7 +95,7 @@ APP_TARGET= $(EBIN)/$(APP_FILE)
 APPUP_SRC= $(APPUP_FILE).src
 APPUP_TARGET= $(EBIN)/$(APPUP_FILE)
 
-INTERNAL_HRL_FILES = ssh_auth.hrl ssh_connect.hrl ssh_transport.hrl
+INTERNAL_HRL_FILES = ssh_auth.hrl ssh_connect.hrl ssh_transport.hrl ssh.hrl ssh_userauth.hrl ssh_xfer.hrl
 
 # ----------------------------------------------------
 # FLAGS
@@ -140,7 +140,7 @@ release_spec: opt
 	$(INSTALL_DATA) $(BEHAVIOUR_TARGET_FILES) $(TARGET_FILES) $(APP_TARGET) \
 	$(APPUP_TARGET) "$(RELSYSDIR)/ebin"
 	$(INSTALL_DIR) "$(RELSYSDIR)/include"
-	$(INSTALL_DATA) $(PUBLIC_HRL_FILES) "$(RELSYSDIR)/include"
+
 
 release_docs_spec:
 
diff --git a/lib/ssh/src/ssh.erl b/lib/ssh/src/ssh.erl
index 7ed17618e7..826c585d65 100644
--- a/lib/ssh/src/ssh.erl
+++ b/lib/ssh/src/ssh.erl
@@ -24,11 +24,14 @@
 -include("ssh.hrl").
 -include("ssh_connect.hrl").
 -include_lib("public_key/include/public_key.hrl").
+-include_lib("kernel/include/file.hrl").
 
 -export([start/0, start/1, stop/0, connect/3, connect/4, close/1, connection_info/2,
 	 channel_info/3,
 	 daemon/1, daemon/2, daemon/3,
-	 stop_listener/1, stop_listener/2, stop_daemon/1, stop_daemon/2,
+	 default_algorithms/0,
+	 stop_listener/1, stop_listener/2,  stop_listener/3,
+	 stop_daemon/1, stop_daemon/2, stop_daemon/3,
 	 shell/1, shell/2, shell/3]).
 
 %%--------------------------------------------------------------------
@@ -157,7 +160,9 @@ daemon(HostAddr, Port, Options0) ->
 stop_listener(SysSup) ->
     ssh_system_sup:stop_listener(SysSup).
 stop_listener(Address, Port) ->
-    ssh_system_sup:stop_listener(Address, Port).
+    stop_listener(Address, Port, ?DEFAULT_PROFILE).
+stop_listener(Address, Port, Profile) ->
+    ssh_system_sup:stop_listener(Address, Port, Profile).
 
 %%--------------------------------------------------------------------
 -spec stop_daemon(pid()) -> ok.
@@ -169,8 +174,9 @@ stop_listener(Address, Port) ->
 stop_daemon(SysSup) ->
     ssh_system_sup:stop_system(SysSup).
 stop_daemon(Address, Port) ->
-    ssh_system_sup:stop_system(Address, Port).
-
+    ssh_system_sup:stop_system(Address, Port, ?DEFAULT_PROFILE).
+stop_daemon(Address, Port, Profile) ->
+    ssh_system_sup:stop_system(Address, Port, Profile).
 %%--------------------------------------------------------------------
 -spec shell(string()) ->  _.
 -spec shell(string(), proplists:proplist()) ->  _.
@@ -208,6 +214,11 @@ shell(Host, Port, Options) ->
     end.
 
 %%--------------------------------------------------------------------
+%%--------------------------------------------------------------------
+default_algorithms() -> 
+    ssh_transport:default_algorithms().
+
+%%--------------------------------------------------------------------
 %%% Internal functions
 %%--------------------------------------------------------------------
 fix_idle_time(SshOptions) ->
@@ -226,7 +237,8 @@ start_daemon(Host, Port, Options, Inet) ->
     end.
     
 do_start_daemon(Host, Port, Options, SocketOptions) ->
-    case ssh_system_sup:system_supervisor(Host, Port) of
+    Profile = proplists:get_value(profile, Options, ?DEFAULT_PROFILE),
+    case ssh_system_sup:system_supervisor(Host, Port, Profile) of
 	undefined ->
 	    %% It would proably make more sense to call the
 	    %% address option host but that is a too big change at the
@@ -259,7 +271,7 @@ do_start_daemon(Host, Port, Options, SocketOptions) ->
     end.
 
 handle_options(Opts) ->
-    try handle_option(proplists:unfold(Opts), [], []) of
+    try handle_option(algs_compatibility(proplists:unfold(Opts)), [], []) of
 	{Inet, Ssh} ->
 	    {handle_ip(Inet), Ssh}
     catch
@@ -267,6 +279,35 @@ handle_options(Opts) ->
 	    Error
     end.
 
+
+algs_compatibility(Os) ->
+    %% Take care of old options 'public_key_alg' and 'pref_public_key_algs'
+    comp_pk(proplists:get_value(preferred_algorithms,Os),
+	    proplists:get_value(pref_public_key_algs,Os),
+	    proplists:get_value(public_key_alg, Os),
+	    [{K,V} || {K,V} <- Os,
+		      K =/= public_key_alg,
+		      K =/= pref_public_key_algs]
+	   ).
+
+comp_pk(undefined, undefined, undefined, Os) -> Os;
+comp_pk( PrefAlgs,         _,         _, Os) when PrefAlgs =/= undefined -> Os;
+
+comp_pk(undefined, undefined,   ssh_dsa, Os) -> comp_pk(undefined, undefined, 'ssh-dss', Os);
+comp_pk(undefined, undefined,   ssh_rsa, Os) -> comp_pk(undefined, undefined, 'ssh-rsa', Os);
+comp_pk(undefined, undefined,        PK, Os) -> 
+    PKs = [PK | ssh_transport:supported_algorithms(public_key)--[PK]],
+    [{preferred_algorithms, [{public_key,PKs}] } | Os];
+
+comp_pk(undefined, PrefPKs, _, Os) when PrefPKs =/= undefined ->
+    PKs = [case PK of
+	       ssh_dsa -> 'ssh-dss';
+	       ssh_rsa -> 'ssh-rsa';
+	       _ -> PK
+	   end || PK <- PrefPKs],
+    [{preferred_algorithms, [{public_key,PKs}]} | Os].
+
+
 handle_option([], SocketOptions, SshOptions) ->
     {SocketOptions, SshOptions};
 handle_option([{system_dir, _} = Opt | Rest], SocketOptions, SshOptions) ->
@@ -279,8 +320,6 @@ handle_option([{silently_accept_hosts, _} = Opt | Rest], SocketOptions, SshOptio
     handle_option(Rest, SocketOptions, [handle_ssh_option(Opt) | SshOptions]);
 handle_option([{user_interaction, _} = Opt | Rest], SocketOptions, SshOptions) ->
     handle_option(Rest, SocketOptions, [handle_ssh_option(Opt) | SshOptions]);
-handle_option([{public_key_alg, _} = Opt | Rest], SocketOptions, SshOptions) ->
-    handle_option(Rest, SocketOptions, [handle_ssh_option(Opt) | SshOptions]);
 handle_option([{connect_timeout, _} = Opt | Rest], SocketOptions, SshOptions) ->
     handle_option(Rest, SocketOptions, [handle_ssh_option(Opt) | SshOptions]);
 handle_option([{user, _} = Opt | Rest], SocketOptions, SshOptions) ->
@@ -297,10 +336,6 @@ handle_option([{pwdfun, _} = Opt | Rest], SocketOptions, SshOptions) ->
     handle_option(Rest, SocketOptions, [handle_ssh_option(Opt) | SshOptions]);
 handle_option([{key_cb, _} = Opt | Rest], SocketOptions, SshOptions) ->
     handle_option(Rest, SocketOptions, [handle_ssh_option(Opt) | SshOptions]);
-handle_option([{role, _} = Opt | Rest], SocketOptions, SshOptions) ->
-    handle_option(Rest, SocketOptions, [handle_ssh_option(Opt) | SshOptions]);
-handle_option([{compression, _} = Opt | Rest], SocketOptions, SshOptions) ->
-    handle_option(Rest, SocketOptions, [handle_ssh_option(Opt) | SshOptions]);
 %%Backwards compatibility
 handle_option([{allow_user_interaction, Value}  | Rest], SocketOptions, SshOptions) ->
     handle_option(Rest, SocketOptions, [handle_ssh_option({user_interaction, Value}) | SshOptions]);
@@ -333,7 +368,7 @@ handle_option([{auth_methods, _} = Opt | Rest], SocketOptions, SshOptions) ->
     handle_option(Rest, SocketOptions, [handle_ssh_option(Opt) | SshOptions]);
 handle_option([{auth_method_kb_interactive_data, _} = Opt | Rest], SocketOptions, SshOptions) ->
     handle_option(Rest, SocketOptions, [handle_ssh_option(Opt) | SshOptions]);
-handle_option([{pref_public_key_algs, _} = Opt | Rest], SocketOptions, SshOptions) ->
+handle_option([{preferred_algorithms,_} = Opt | Rest], SocketOptions, SshOptions) ->
     handle_option(Rest, SocketOptions, [handle_ssh_option(Opt) | SshOptions]);
 handle_option([{quiet_mode, _} = Opt|Rest], SocketOptions, SshOptions) ->
     handle_option(Rest, SocketOptions, [handle_ssh_option(Opt) | SshOptions]);
@@ -353,6 +388,8 @@ handle_option([{minimal_remote_max_packet_size, _} = Opt|Rest], SocketOptions, S
     handle_option(Rest, SocketOptions, [handle_ssh_option(Opt) | SshOptions]);
 handle_option([{id_string, _ID} = Opt|Rest], SocketOptions, SshOptions) ->
     handle_option(Rest, SocketOptions, [handle_ssh_option(Opt) | SshOptions]);
+handle_option([{profile, _ID} = Opt|Rest], SocketOptions, SshOptions) ->
+    handle_option(Rest, SocketOptions, [handle_ssh_option(Opt) | SshOptions]);
 handle_option([Opt | Rest], SocketOptions, SshOptions) ->
     handle_option(Rest, [handle_inet_option(Opt) | SocketOptions], SshOptions).
 
@@ -360,28 +397,17 @@ handle_option([Opt | Rest], SocketOptions, SshOptions) ->
 handle_ssh_option({minimal_remote_max_packet_size, Value} = Opt) when is_integer(Value), Value >=0 ->
     Opt;
 handle_ssh_option({system_dir, Value} = Opt) when is_list(Value) ->
-    Opt;
+    check_dir(Opt);
 handle_ssh_option({user_dir, Value} = Opt) when is_list(Value) ->
-    Opt;
+    check_dir(Opt);
 handle_ssh_option({user_dir_fun, Value} = Opt) when is_function(Value) ->
     Opt;
 handle_ssh_option({silently_accept_hosts, Value} = Opt) when is_boolean(Value) ->
     Opt;
 handle_ssh_option({user_interaction, Value} = Opt) when is_boolean(Value) ->
     Opt;
-handle_ssh_option({public_key_alg, ssh_dsa}) ->
-    {public_key_alg, 'ssh-dss'};
-handle_ssh_option({public_key_alg, ssh_rsa})  ->
-    {public_key_alg, 'ssh-rsa'};
-handle_ssh_option({public_key_alg, Value} = Opt) when Value == 'ssh-rsa'; Value == 'ssh-dss' ->
-    Opt;
-handle_ssh_option({pref_public_key_algs, Value} = Opt) when is_list(Value), length(Value) >= 1 ->
-    case handle_pref_algs(Value, []) of
-	{true, NewOpts} ->
-	    NewOpts;
-	_ ->
-	    throw({error, {eoptions, Opt}})
-    end;
+handle_ssh_option({preferred_algorithms,[_|_]} = Opt) -> 
+    handle_pref_algs(Opt);
 handle_ssh_option({connect_timeout, Value} = Opt) when is_integer(Value); Value == infinity ->
     Opt;
 handle_ssh_option({max_sessions, Value} = Opt) when is_integer(Value), Value>0 ->
@@ -458,6 +484,8 @@ handle_ssh_option({id_string, random}) ->
     {id_string, {random,2,5}}; %% 2 - 5 random characters
 handle_ssh_option({id_string, ID} = Opt) when is_list(ID) ->
     Opt;
+handle_ssh_option({profile, Value} = Opt) when is_atom(Value) ->
+    Opt;
 handle_ssh_option(Opt) ->
     throw({error, {eoptions, Opt}}).
 
@@ -474,23 +502,83 @@ handle_inet_option({reuseaddr, _} = Opt) ->
 %% Option verified by inet
 handle_inet_option(Opt) ->
     Opt.
+
+
 %% Check preferred algs
-handle_pref_algs([], Acc) ->
-    {true, lists:reverse(Acc)};
-handle_pref_algs([H|T], Acc) ->
-    case H of
-	ssh_dsa ->
-	    handle_pref_algs(T, ['ssh-dss'| Acc]);
-	ssh_rsa ->
-	    handle_pref_algs(T, ['ssh-rsa'| Acc]);
-	'ssh-dss' ->
-	    handle_pref_algs(T, ['ssh-dss'| Acc]);
-	'ssh-rsa' ->
-	    handle_pref_algs(T, ['ssh-rsa'| Acc]);
-	_ ->
-	    false
+
+handle_pref_algs({preferred_algorithms,Algs}) ->
+    try alg_duplicates(Algs, [], []) of
+	[] ->
+	    {preferred_algorithms,
+	     [try ssh_transport:supported_algorithms(Key)
+	      of
+		  DefAlgs -> handle_pref_alg(Key,Vals,DefAlgs)
+	      catch
+		  _:_ -> throw({error, {{eoptions, {preferred_algorithms,Key}}, 
+					"Bad preferred_algorithms key"}})
+	      end  || {Key,Vals} <- Algs]
+	    };
+		    
+	Dups ->
+	    throw({error, {{eoptions, {preferred_algorithms,Dups}}, "Duplicates found"}})
+    catch
+	_:_ ->
+	    throw({error, {{eoptions, preferred_algorithms}, "Malformed"}})
     end.
 
+alg_duplicates([{K,V}|KVs], Ks, Dups0) ->
+    Dups =
+	case lists:member(K,Ks) of
+	    true ->
+		[K|Dups0];
+	    false ->
+		Dups0
+	end,
+    case V--lists:usort(V) of
+	[] ->
+	    alg_duplicates(KVs, [K|Ks], Dups);
+	Ds ->
+	    alg_duplicates(KVs, [K|Ks], Dups++Ds)
+    end;
+alg_duplicates([], _Ks, Dups) ->
+    Dups.
+
+handle_pref_alg(Key,
+		Vs=[{client2server,C2Ss=[_|_]},{server2client,S2Cs=[_|_]}],
+		[{client2server,Sup_C2Ss},{server2client,Sup_S2Cs}]
+	       ) ->
+    chk_alg_vs(Key, C2Ss, Sup_C2Ss),
+    chk_alg_vs(Key, S2Cs, Sup_S2Cs),
+    {Key, Vs};
+
+handle_pref_alg(Key,
+		Vs=[{server2client,[_|_]},{client2server,[_|_]}],
+		Sup=[{client2server,_},{server2client,_}]
+	       ) ->
+    handle_pref_alg(Key, lists:reverse(Vs), Sup);
+
+handle_pref_alg(Key, 
+		Vs=[V|_],
+		Sup=[{client2server,_},{server2client,_}]
+	       ) when is_atom(V) ->
+    handle_pref_alg(Key, [{client2server,Vs},{server2client,Vs}], Sup);
+
+handle_pref_alg(Key, 
+		Vs=[V|_],
+		Sup=[S|_]
+	       ) when is_atom(V), is_atom(S) ->
+    chk_alg_vs(Key, Vs, Sup),
+    {Key, Vs};
+
+handle_pref_alg(Key, Vs, _) ->
+    throw({error, {{eoptions, {preferred_algorithms,[{Key,Vs}]}}, "Badly formed list"}}).
+
+chk_alg_vs(OptKey, Values, SupportedValues) ->
+    case (Values -- SupportedValues) of
+	[] -> Values;
+	Bad -> throw({error, {{eoptions, {OptKey,Bad}}, "Unsupported value(s) found"}})
+    end.
+	    
 handle_ip(Inet) -> %% Default to ipv4
     case lists:member(inet, Inet) of
 	true ->
@@ -503,4 +591,31 @@ handle_ip(Inet) -> %% Default to ipv4
 		    [inet | Inet]
 	    end
     end.
-	
+
+check_dir({_,Dir} = Opt) ->
+    case directory_exist_readable(Dir) of
+	ok ->
+	    Opt;
+	{error,Error} ->
+	    throw({error, {eoptions,{Opt,Error}}})
+    end.
+
+directory_exist_readable(Dir) ->
+    case file:read_file_info(Dir) of
+	{ok, #file_info{type = directory,
+			access = Access}} ->
+	    case Access of
+		read -> ok;
+		read_write -> ok;
+		_ -> {error, eacces}
+	    end;
+
+	{ok, #file_info{}}->
+	    {error, enotdir};
+
+	{error, Error} ->
+	    {error, Error}
+    end.
+		
+		    
+
diff --git a/lib/ssh/src/ssh.hrl b/lib/ssh/src/ssh.hrl
index 0c4d34f89c..94154c8a96 100644
--- a/lib/ssh/src/ssh.hrl
+++ b/lib/ssh/src/ssh.hrl
@@ -31,6 +31,7 @@
 -define(SSH_LENGHT_INDICATOR_SIZE, 4).
 -define(REKEY_TIMOUT, 3600000).
 -define(REKEY_DATA_TIMOUT, 60000).
+-define(DEFAULT_PROFILE, default).
 
 -define(FALSE, 0).
 -define(TRUE,  1).
diff --git a/lib/ssh/src/ssh_acceptor.erl b/lib/ssh/src/ssh_acceptor.erl
index 34988f17b6..6c431af270 100644
--- a/lib/ssh/src/ssh_acceptor.erl
+++ b/lib/ssh/src/ssh_acceptor.erl
@@ -21,6 +21,8 @@
 
 -module(ssh_acceptor).
 
+-include("ssh.hrl").
+
 %% Internal application API
 -export([start_link/5,
 	 number_of_connections/1]).
@@ -82,8 +84,10 @@ acceptor_loop(Callback, Port, Address, Opts, ListenSocket, AcceptTimeout) ->
     end.
 
 handle_connection(Callback, Address, Port, Options, Socket) ->
-    SystemSup = ssh_system_sup:system_supervisor(Address, Port),
     SSHopts = proplists:get_value(ssh_opts, Options, []),
+    Profile =  proplists:get_value(profile, SSHopts, ?DEFAULT_PROFILE),
+    SystemSup = ssh_system_sup:system_supervisor(Address, Port, Profile),
+
     MaxSessions = proplists:get_value(max_sessions,SSHopts,infinity),
     case number_of_connections(SystemSup) < MaxSessions of
 	true ->
diff --git a/lib/ssh/src/ssh_acceptor_sup.erl b/lib/ssh/src/ssh_acceptor_sup.erl
index 46fdef07d0..e101ce8b39 100644
--- a/lib/ssh/src/ssh_acceptor_sup.erl
+++ b/lib/ssh/src/ssh_acceptor_sup.erl
@@ -26,7 +26,9 @@
 -module(ssh_acceptor_sup).
 -behaviour(supervisor).
 
--export([start_link/1, start_child/2, stop_child/3]).
+-include("ssh.hrl").
+
+-export([start_link/1, start_child/2, stop_child/4]).
 
 %% Supervisor callback
 -export([init/1]).
@@ -45,14 +47,16 @@ start_child(AccSup, ServerOpts) ->
 	{error, already_present} ->
 	    Address = proplists:get_value(address, ServerOpts),
 	    Port = proplists:get_value(port, ServerOpts),
-	    stop_child(AccSup, Address, Port),
+	    Profile = proplists:get_value(profile,  
+					  proplists:get_value(ssh_opts, ServerOpts), ?DEFAULT_PROFILE),
+	    stop_child(AccSup, Address, Port, Profile),
 	    supervisor:start_child(AccSup, Spec);
 	Reply ->
 	    Reply
     end.
 
-stop_child(AccSup, Address, Port) ->
-    Name = id(Address, Port),
+stop_child(AccSup, Address, Port, Profile) ->
+    Name = id(Address, Port, Profile),
     case supervisor:terminate_child(AccSup, Name) of
         ok ->
             supervisor:delete_child(AccSup, Name);
@@ -77,7 +81,8 @@ child_spec(ServerOpts) ->
     Address = proplists:get_value(address, ServerOpts),
     Port = proplists:get_value(port, ServerOpts),
     Timeout = proplists:get_value(timeout, ServerOpts, ?DEFAULT_TIMEOUT),
-    Name = id(Address, Port),
+    Profile = proplists:get_value(profile,  proplists:get_value(ssh_opts, ServerOpts), ?DEFAULT_PROFILE),
+    Name = id(Address, Port, Profile),
     SocketOpts = proplists:get_value(socket_opts, ServerOpts),
     StartFunc = {ssh_acceptor, start_link, [Port, Address, 
 					    [{active, false},
@@ -89,6 +94,11 @@ child_spec(ServerOpts) ->
     Type = worker,
     {Name, StartFunc, Restart, Shutdown, Type, Modules}.
 
-id(Address, Port) ->
-    {ssh_acceptor_sup, Address, Port}.
+id(Address, Port, Profile) ->
+    case is_list(Address) of
+	true ->
+	    {ssh_acceptor_sup, any, Port, Profile};
+	false ->
+	    {ssh_acceptor_sup, Address, Port, Profile}
+    end.
 
diff --git a/lib/ssh/src/ssh_auth.erl b/lib/ssh/src/ssh_auth.erl
index 9d1ab14ce9..df9a97c8f8 100644
--- a/lib/ssh/src/ssh_auth.erl
+++ b/lib/ssh/src/ssh_auth.erl
@@ -30,7 +30,8 @@
 -export([publickey_msg/1, password_msg/1, keyboard_interactive_msg/1,
 	 service_request_msg/1, init_userauth_request_msg/1,
 	 userauth_request_msg/1, handle_userauth_request/3,
-	 handle_userauth_info_request/3, handle_userauth_info_response/2
+	 handle_userauth_info_request/3, handle_userauth_info_response/2,
+	 default_public_key_algorithms/0
 	]).
 
 %%--------------------------------------------------------------------
@@ -115,33 +116,16 @@ init_userauth_request_msg(#ssh{opts = Opts} = Ssh) ->
 					    service = "ssh-connection",
 					    method = "none",
 					    data = <<>>},
-	    case proplists:get_value(pref_public_key_algs, Opts, false) of
-		false ->
-		    FirstAlg = proplists:get_value(public_key_alg, Opts, ?PREFERRED_PK_ALG),
-		    SecondAlg = other_alg(FirstAlg),
-		    Prefs = method_preference(FirstAlg, SecondAlg),
-		    ssh_transport:ssh_packet(Msg, Ssh#ssh{user = User,
-							  userauth_preference = Prefs,
-							  userauth_methods = none,
-							  service = "ssh-connection"});
-		Algs ->
-		    FirstAlg = lists:nth(1, Algs),
-		    case length(Algs) =:= 2 of
-			true ->
-			    SecondAlg = other_alg(FirstAlg),
-			    Prefs = method_preference(FirstAlg, SecondAlg),
-			    ssh_transport:ssh_packet(Msg, Ssh#ssh{user = User,
-								  userauth_preference = Prefs,
-								  userauth_methods = none,
-								  service = "ssh-connection"});
-			_ ->
-			    Prefs = method_preference(FirstAlg),
-			    ssh_transport:ssh_packet(Msg, Ssh#ssh{user = User,
-								  userauth_preference = Prefs,
-								  userauth_methods = none,
-								  service = "ssh-connection"})
-		    end
-	    end;
+
+
+	    Algs = proplists:get_value(public_key, 
+				       proplists:get_value(preferred_algorithms, Opts, []),
+				       default_public_key_algorithms()),
+	    Prefs = method_preference(Algs),
+	    ssh_transport:ssh_packet(Msg, Ssh#ssh{user = User,
+						  userauth_preference = Prefs,
+						  userauth_methods = none,
+						  service = "ssh-connection"});
 	{error, no_user} ->
 	    ErrStr = "Could not determine the users name",
 	    throw(#ssh_msg_disconnect{code = ?SSH_DISCONNECT_ILLEGAL_USER_NAME,
@@ -367,20 +351,20 @@ handle_userauth_info_response(#ssh_msg_userauth_info_response{},
 			      "keyboard-interactive",
 			      language = "en"}).
 
+
+default_public_key_algorithms() -> ?PREFERRED_PK_ALGS.
+
 %%--------------------------------------------------------------------
 %%% Internal functions
 %%--------------------------------------------------------------------
-method_preference(Alg1, Alg2) ->
-    [{"publickey", ?MODULE, publickey_msg, [Alg1]},
-     {"publickey", ?MODULE, publickey_msg,[Alg2]},
-     {"password", ?MODULE, password_msg, []},
-     {"keyboard-interactive", ?MODULE, keyboard_interactive_msg, []}
-    ].
-method_preference(Alg1) ->
-    [{"publickey", ?MODULE, publickey_msg, [Alg1]},
-     {"password", ?MODULE, password_msg, []},
-     {"keyboard-interactive", ?MODULE, keyboard_interactive_msg, []}
-    ].
+method_preference(Algs) ->
+    lists:foldr(fun(A, Acc) ->
+		       [{"publickey", ?MODULE, publickey_msg, [A]} | Acc]
+	       end, 
+	       [{"password", ?MODULE, password_msg, []},
+		{"keyboard-interactive", ?MODULE, keyboard_interactive_msg, []}
+	       ],
+	       Algs).
 
 user_name(Opts) ->
     Env = case os:type() of
@@ -498,10 +482,6 @@ keyboard_interact_fun(KbdInteractFun, Name, Instr,  PromptInfos, NumPrompts) ->
 				       language = "en"}})
     end.
 
-other_alg('ssh-rsa') ->
-    'ssh-dss';
-other_alg('ssh-dss') ->
-    'ssh-rsa'.
 decode_public_key_v2(<<?UINT32(Len0), _:Len0/binary,
 		       ?UINT32(Len1), BinE:Len1/binary,
 		       ?UINT32(Len2), BinN:Len2/binary>>
diff --git a/lib/ssh/src/ssh_auth.hrl b/lib/ssh/src/ssh_auth.hrl
index 6cd8e6bf14..764c9f4246 100644
--- a/lib/ssh/src/ssh_auth.hrl
+++ b/lib/ssh/src/ssh_auth.hrl
@@ -23,7 +23,7 @@
 
 -define(SUPPORTED_AUTH_METHODS, "publickey,keyboard-interactive,password").
 
--define(PREFERRED_PK_ALG, 'ssh-rsa').
+-define(PREFERRED_PK_ALGS, ['ssh-rsa','ssh-dss']).
 
 -define(SSH_MSG_USERAUTH_REQUEST,  50).
 -define(SSH_MSG_USERAUTH_FAILURE,  51).
diff --git a/lib/ssh/src/ssh_cli.erl b/lib/ssh/src/ssh_cli.erl
index 18841e3d2d..de6d246403 100644
--- a/lib/ssh/src/ssh_cli.erl
+++ b/lib/ssh/src/ssh_cli.erl
@@ -98,7 +98,7 @@ handle_ssh_msg({ssh_cm, ConnectionHandler,
     Pty = Pty0#ssh_pty{width = Width, height = Height,
 		       pixel_width = PixWidth,
 		       pixel_height = PixHeight},
-    {Chars, NewBuf} = io_request({window_change, Pty0}, Buf, Pty),
+    {Chars, NewBuf} = io_request({window_change, Pty0}, Buf, Pty, undefined),
     write_chars(ConnectionHandler, ChannelId, Chars),
     {ok, State#state{pty = Pty, buf = NewBuf}};
 
@@ -188,7 +188,7 @@ handle_msg({Group, tty_geometry}, #state{group = Group,
 handle_msg({Group, Req}, #state{group = Group, buf = Buf, pty = Pty,
 				 cm = ConnectionHandler,
 				 channel = ChannelId} = State) ->
-    {Chars, NewBuf} = io_request(Req, Buf, Pty),
+    {Chars, NewBuf} = io_request(Req, Buf, Pty, Group),
     write_chars(ConnectionHandler, ChannelId, Chars),
     {ok, State#state{buf = NewBuf}};
 
@@ -263,40 +263,49 @@ eval(Error) ->
 %%% displaying device...
 %%% We are *not* really unicode aware yet, we just filter away characters 
 %%% beyond the latin1 range. We however handle the unicode binaries...
-io_request({window_change, OldTty}, Buf, Tty) ->
+io_request({window_change, OldTty}, Buf, Tty, _Group) ->
     window_change(Tty, OldTty, Buf);
-io_request({put_chars, Cs}, Buf, Tty) ->
+io_request({put_chars, Cs}, Buf, Tty, _Group) ->
     put_chars(bin_to_list(Cs), Buf, Tty);
-io_request({put_chars, unicode, Cs}, Buf, Tty) ->
+io_request({put_chars, unicode, Cs}, Buf, Tty, _Group) ->
     put_chars(unicode:characters_to_list(Cs,unicode), Buf, Tty);
-io_request({insert_chars, Cs}, Buf, Tty) ->
+io_request({insert_chars, Cs}, Buf, Tty, _Group) ->
     insert_chars(bin_to_list(Cs), Buf, Tty);
-io_request({insert_chars, unicode, Cs}, Buf, Tty) ->
+io_request({insert_chars, unicode, Cs}, Buf, Tty, _Group) ->
     insert_chars(unicode:characters_to_list(Cs,unicode), Buf, Tty);
-io_request({move_rel, N}, Buf, Tty) ->
+io_request({move_rel, N}, Buf, Tty, _Group) ->
     move_rel(N, Buf, Tty);
-io_request({delete_chars,N}, Buf, Tty) ->
+io_request({delete_chars,N}, Buf, Tty, _Group) ->
     delete_chars(N, Buf, Tty);
-io_request(beep, Buf, _Tty) ->
+io_request(beep, Buf, _Tty, _Group) ->
     {[7], Buf};
 
 %% New in R12
-io_request({get_geometry,columns},Buf,Tty) ->
+io_request({get_geometry,columns},Buf,Tty, _Group) ->
     {ok, Tty#ssh_pty.width, Buf};
-io_request({get_geometry,rows},Buf,Tty) ->
+io_request({get_geometry,rows},Buf,Tty, _Group) ->
     {ok, Tty#ssh_pty.height, Buf};
-io_request({requests,Rs}, Buf, Tty) ->
-    io_requests(Rs, Buf, Tty, []);
-io_request(tty_geometry, Buf, Tty) ->
-    io_requests([{move_rel, 0}, {put_chars, unicode, [10]}], Buf, Tty, []);
+io_request({requests,Rs}, Buf, Tty, Group) ->
+    io_requests(Rs, Buf, Tty, [], Group);
+io_request(tty_geometry, Buf, Tty, Group) ->
+    io_requests([{move_rel, 0}, {put_chars, unicode, [10]}],
+                Buf, Tty, [], Group);
      %{[], Buf};
-io_request(_R, Buf, _Tty) ->
+
+%% New in 18
+io_request({put_chars_sync, Class, Cs, Reply}, Buf, Tty, Group) ->
+    %% We handle these asynchronous for now, if we need output guarantees
+    %% we have to handle these synchronously
+    Group ! {reply, Reply},
+    io_request({put_chars, Class, Cs}, Buf, Tty, Group);
+
+io_request(_R, Buf, _Tty, _Group) ->
     {[], Buf}.
 
-io_requests([R|Rs], Buf, Tty, Acc) ->
-    {Chars, NewBuf} = io_request(R, Buf, Tty),
-    io_requests(Rs, NewBuf, Tty, [Acc|Chars]);
-io_requests([], Buf, _Tty, Acc) ->
+io_requests([R|Rs], Buf, Tty, Acc, Group) ->
+    {Chars, NewBuf} = io_request(R, Buf, Tty, Group),
+    io_requests(Rs, NewBuf, Tty, [Acc|Chars], Group);
+io_requests([], Buf, _Tty, Acc, _Group) ->
     {Acc, Buf}.
 
 %%% return commands for cursor navigation, assume everything is ansi
diff --git a/lib/ssh/src/ssh_connection.erl b/lib/ssh/src/ssh_connection.erl
index 654b9d4bde..d532d41009 100644
--- a/lib/ssh/src/ssh_connection.erl
+++ b/lib/ssh/src/ssh_connection.erl
@@ -196,15 +196,16 @@ reply_request(_,false, _, _) ->
 %%--------------------------------------------------------------------
 ptty_alloc(ConnectionHandler, Channel, Options) ->
     ptty_alloc(ConnectionHandler, Channel, Options, infinity).
-ptty_alloc(ConnectionHandler, Channel, Options, TimeOut) ->
+ptty_alloc(ConnectionHandler, Channel, Options0, TimeOut) ->
+    Options = backwards_compatible(Options0, []),
     {Width, PixWidth} = pty_default_dimensions(width, Options),
-    {Hight, PixHight} = pty_default_dimensions(hight, Options),
+    {Height, PixHeight} = pty_default_dimensions(height, Options),
     pty_req(ConnectionHandler, Channel,
-	    proplists:get_value(term, Options, default_term()),
+	    proplists:get_value(term, Options, os:getenv("TERM", ?DEFAULT_TERMINAL)),
 	    proplists:get_value(width, Options, Width),
-	    proplists:get_value(hight, Options, Hight),
+	    proplists:get_value(height, Options, Height),
 	    proplists:get_value(pixel_widh, Options, PixWidth),
-	    proplists:get_value(pixel_hight, Options, PixHight),
+	    proplists:get_value(pixel_height, Options, PixHeight),
 	    proplists:get_value(pty_opts, Options, []), TimeOut
 	   ).
 %%--------------------------------------------------------------------
@@ -1340,10 +1341,11 @@ decode_ip(Addr) when is_binary(Addr) ->
 	{ok,A}    -> A
     end.
 
-default_term() ->
-    case os:getenv("TERM") of
-	false ->
-	    ?DEFAULT_TERMINAL;
-	Str when is_list(Str)->
-	    Str
-    end.	
+backwards_compatible([], Acc) ->
+    Acc;
+backwards_compatible([{hight, Value} | Rest], Acc) ->
+    backwards_compatible(Rest, [{height, Value} | Acc]);
+backwards_compatible([{pixel_hight, Value} | Rest], Acc) ->
+    backwards_compatible(Rest, [{height, Value} | Acc]);
+backwards_compatible([Value| Rest], Acc) ->
+    backwards_compatible(Rest, [ Value | Acc]).
diff --git a/lib/ssh/src/ssh_connection_handler.erl b/lib/ssh/src/ssh_connection_handler.erl
index f751094211..ab1fc93a1b 100644
--- a/lib/ssh/src/ssh_connection_handler.erl
+++ b/lib/ssh/src/ssh_connection_handler.erl
@@ -33,7 +33,7 @@
 -include("ssh_transport.hrl").
 -include("ssh_auth.hrl").
 -include("ssh_connect.hrl").
-
+-compile(export_all).
 -export([start_link/3]).
 
 %% Internal application API
@@ -70,6 +70,8 @@
 	  undecoded_packet_length, %  integer()
 	  key_exchange_init_msg,   %  #ssh_msg_kexinit{}
 	  renegotiate = false,     %  boolean() 
+	  last_size_rekey = 0,
+	  event_queue = [],
 	  connection_queue,
 	  address,
 	  port,
@@ -82,6 +84,11 @@
 				{next_state, state_name(), term(), timeout()} |
 				{stop, term(), term()}.
 
+-type gen_fsm_sync_return() :: {next_state, state_name(), term()} |
+			       {next_state, state_name(), term(), timeout()} |
+			       {reply, term(), state_name(), term()} |
+			       {stop, term(), term(), term()}.
+
 %%====================================================================
 %% Internal application API
 %%====================================================================
@@ -435,9 +442,7 @@ key_exchange(#ssh_msg_kex_dh_gex_reply{} = Msg,
 
 new_keys(#ssh_msg_newkeys{} = Msg, #state{ssh_params = Ssh0} = State0) ->
     {ok, Ssh} = ssh_transport:handle_new_keys(Msg, Ssh0),
-    {NextStateName, State} =
-	after_new_keys(State0#state{ssh_params = Ssh}),
-    {next_state, NextStateName, next_packet(State)}.
+    after_new_keys(next_packet(State0#state{ssh_params = Ssh})).
 
 %%--------------------------------------------------------------------
 -spec userauth(#ssh_msg_service_request{} | #ssh_msg_service_accept{} |
@@ -572,11 +577,13 @@ userauth(#ssh_msg_userauth_banner{message = Msg},
 -spec connected({#ssh_msg_kexinit{}, binary()}, %%| %% #ssh_msg_kexdh_init{},
 		 #state{}) -> gen_fsm_state_return().
 %%--------------------------------------------------------------------
-connected({#ssh_msg_kexinit{}, _Payload} = Event, State) ->
-    kexinit(Event, State#state{renegotiate = true}).
-%% ;
-%% connected(#ssh_msg_kexdh_init{} = Event, State) ->
-%%     key_exchange(Event, State#state{renegotiate = true}).
+connected({#ssh_msg_kexinit{}, _Payload} = Event, #state{ssh_params = Ssh0} = State0) ->
+    {KeyInitMsg, SshPacket, Ssh} = ssh_transport:key_exchange_init_msg(Ssh0),
+    State = State0#state{ssh_params = Ssh,
+			 key_exchange_init_msg = KeyInitMsg,
+			 renegotiate = true},
+    send_msg(SshPacket, State),
+    kexinit(Event, State).
 
 %%--------------------------------------------------------------------
 -spec handle_event(#ssh_msg_disconnect{} | #ssh_msg_ignore{} | #ssh_msg_debug{} |
@@ -605,33 +612,6 @@ handle_event(#ssh_msg_debug{always_display = Display, message = DbgMsg, language
 handle_event(#ssh_msg_unimplemented{}, StateName, State) ->
     {next_state, StateName, next_packet(State)};
 
-handle_event({adjust_window, ChannelId, Bytes}, StateName,
-	     #state{connection_state =
-			#connection{channel_cache = Cache}} = State0) ->
-    State =
-	case ssh_channel:cache_lookup(Cache, ChannelId) of
-	    #channel{recv_window_size = WinSize, remote_id = Id} = Channel ->
-		ssh_channel:cache_update(Cache, Channel#channel{recv_window_size =
-					       WinSize + Bytes}),
-		Msg = ssh_connection:channel_adjust_window_msg(Id, Bytes),
-		send_replies([{connection_reply, Msg}], State0);
-	undefined ->
-	    State0
-	end,
-    {next_state, StateName, next_packet(State)};
-
-handle_event({reply_request, success, ChannelId}, StateName,
-		  #state{connection_state =
-			     #connection{channel_cache = Cache}} = State0) ->
-    State = case ssh_channel:cache_lookup(Cache, ChannelId) of
-		#channel{remote_id = RemoteId} ->
-		    Msg = ssh_connection:channel_success_msg(RemoteId),
-		    send_replies([{connection_reply, Msg}], State0);
-		undefined ->
-		    State0
-	    end,
-    {next_state, StateName, State};
-
 handle_event(renegotiate, connected, #state{ssh_params = Ssh0} 
 	     = State) ->
     {KeyInitMsg, SshPacket, Ssh} = ssh_transport:key_exchange_init_msg(Ssh0),
@@ -643,13 +623,13 @@ handle_event(renegotiate, connected, #state{ssh_params = Ssh0}
 			     renegotiate = true})};
 
 handle_event(renegotiate, StateName, State) ->
-    timer:apply_after(?REKEY_TIMOUT, gen_fsm, send_all_state_event, [self(), renegotiate]),
-    %% Allready in keyexcahange so ignore
+    %% Already in key-exchange so safe to ignore
     {next_state, StateName, State};
 
 %% Rekey due to sent data limit reached?
 handle_event(data_size, connected, #state{ssh_params = Ssh0} = State) ->
-    {ok, [{send_oct,Sent}]} = inet:getstat(State#state.socket, [send_oct]),
+    {ok, [{send_oct,Sent0}]} = inet:getstat(State#state.socket, [send_oct]),
+    Sent = Sent0 - State#state.last_size_rekey,
     MaxSent = proplists:get_value(rekey_limit, State#state.opts, 1024000000),
     timer:apply_after(?REKEY_DATA_TIMOUT, gen_fsm, send_all_state_event, [self(), data_size]),
     case Sent >= MaxSent of
@@ -659,11 +639,44 @@ handle_event(data_size, connected, #state{ssh_params = Ssh0} = State) ->
 	    {next_state, kexinit,
 	     next_packet(State#state{ssh_params = Ssh,
 				     key_exchange_init_msg = KeyInitMsg,
-				     renegotiate = true})};
+				     renegotiate = true,
+				     last_size_rekey = Sent0})};
 	_ ->
 	    {next_state, connected, next_packet(State)}
     end;
 handle_event(data_size, StateName, State) ->
+    %% Already in key-exchange so safe to ignore
+    {next_state, StateName, State};
+
+handle_event(Event, StateName, State) when StateName /= connected ->
+    Events = [{event, Event} | State#state.event_queue],
+    {next_state, StateName, State#state{event_queue = Events}};
+
+handle_event({adjust_window, ChannelId, Bytes}, StateName,
+	     #state{connection_state =
+			#connection{channel_cache = Cache}} = State0) ->
+    State =
+	case ssh_channel:cache_lookup(Cache, ChannelId) of
+	    #channel{recv_window_size = WinSize, remote_id = Id} = Channel ->
+		ssh_channel:cache_update(Cache, Channel#channel{recv_window_size =
+					       WinSize + Bytes}),
+		Msg = ssh_connection:channel_adjust_window_msg(Id, Bytes),
+		send_replies([{connection_reply, Msg}], State0);
+	undefined ->
+	    State0
+	end,
+    {next_state, StateName, next_packet(State)};
+
+handle_event({reply_request, success, ChannelId}, StateName,
+		  #state{connection_state =
+			     #connection{channel_cache = Cache}} = State0) ->
+    State = case ssh_channel:cache_lookup(Cache, ChannelId) of
+		#channel{remote_id = RemoteId} ->
+		    Msg = ssh_connection:channel_success_msg(RemoteId),
+		    send_replies([{connection_reply, Msg}], State0);
+		undefined ->
+		    State0
+	    end,
     {next_state, StateName, State};
 
 handle_event({request, ChannelPid, ChannelId, Type, Data}, StateName, State0) ->
@@ -694,8 +707,62 @@ handle_event({unknown, Data}, StateName, State) ->
 					   sockname]} | {channel_info, channel_id(), [recv_window |
 										      send_window]} |
 			{close, channel_id()} | stop, term(), state_name(), #state{})
-		       -> gen_fsm_state_return().
+		       -> gen_fsm_sync_return().
 %%--------------------------------------------------------------------
+handle_sync_event(get_print_info, _From, StateName, State) ->
+    Reply =
+	try
+	    {inet:sockname(State#state.socket),
+	     inet:peername(State#state.socket)
+	    }
+	of
+	    {{ok,Local}, {ok,Remote}} -> {{Local,Remote},io_lib:format("statename=~p",[StateName])};
+	    _ -> {{"-",0},"-"}
+	catch
+	    _:_ -> {{"?",0},"?"}
+	end,
+    {reply, Reply, StateName, State};
+
+handle_sync_event({connection_info, Options}, _From, StateName, State) ->
+    Info = ssh_info(Options, State, []),
+    {reply, Info, StateName, State};
+
+handle_sync_event({channel_info, ChannelId, Options}, _From, StateName,
+		  #state{connection_state = #connection{channel_cache = Cache}} = State) ->
+    case ssh_channel:cache_lookup(Cache, ChannelId) of
+       #channel{} = Channel ->
+	    Info = ssh_channel_info(Options, Channel, []),
+	    {reply, Info, StateName, State};
+	undefined ->
+	    {reply, [], StateName, State}
+    end;
+
+handle_sync_event({info, ChannelPid}, _From, StateName,
+	    #state{connection_state =
+		       #connection{channel_cache = Cache}} = State) ->
+    Result = ssh_channel:cache_foldl(
+	       fun(Channel, Acc) when ChannelPid == all;
+				      Channel#channel.user == ChannelPid ->
+		       [Channel | Acc];
+		  (_, Acc) ->
+		       Acc
+	       end, [], Cache),
+    {reply, {ok, Result}, StateName, State};
+
+handle_sync_event(stop, _, _StateName, #state{connection_state = Connection0,
+					     role = Role} = State0) ->
+    {disconnect, _Reason, {{replies, Replies}, Connection}} =
+	ssh_connection:handle_msg(#ssh_msg_disconnect{code = ?SSH_DISCONNECT_BY_APPLICATION,
+						      description = "User closed down connection",
+						      language = "en"}, Connection0, Role),
+    State = send_replies(Replies, State0),
+    {stop, normal, ok, State#state{connection_state = Connection}};
+
+
+handle_sync_event(Event, From, StateName, State) when StateName /= connected ->
+    Events = [{sync, Event, From} | State#state.event_queue],
+    {next_state, StateName, State#state{event_queue = Events}};
+
 handle_sync_event({request, ChannelPid, ChannelId, Type, Data, Timeout}, From,  StateName, State0) ->
     {{replies, Replies}, State1} = handle_request(ChannelPid,
 						 ChannelId, Type, Data,
@@ -798,46 +865,6 @@ handle_sync_event({recv_window, ChannelId}, _From, StateName,
 	    end,
     {reply, Reply, StateName, next_packet(State)};
 
-handle_sync_event(get_print_info, _From, StateName, State) ->
-    Reply =
-	try
-	    {inet:sockname(State#state.socket),
-	     inet:peername(State#state.socket)
-	    }
-	of
-	    {{ok,Local}, {ok,Remote}} -> {{Local,Remote},io_lib:format("statename=~p",[StateName])};
-	    _ -> {{"-",0},"-"}
-	catch
-	    _:_ -> {{"?",0},"?"}
-	end,
-    {reply, Reply, StateName, State};
-
-handle_sync_event({connection_info, Options}, _From, StateName, State) ->
-    Info = ssh_info(Options, State, []),
-    {reply, Info, StateName, State};
-
-handle_sync_event({channel_info, ChannelId, Options}, _From, StateName,
-		  #state{connection_state = #connection{channel_cache = Cache}} = State) ->
-    case ssh_channel:cache_lookup(Cache, ChannelId) of
-       #channel{} = Channel ->
-	    Info = ssh_channel_info(Options, Channel, []),
-	    {reply, Info, StateName, State};
-	undefined ->
-	    {reply, [], StateName, State}
-    end;
-
-handle_sync_event({info, ChannelPid}, _From, StateName,
-	    #state{connection_state =
-		       #connection{channel_cache = Cache}} = State) ->
-    Result = ssh_channel:cache_foldl(
-	       fun(Channel, Acc) when ChannelPid == all;
-				      Channel#channel.user == ChannelPid ->
-		       [Channel | Acc];
-		  (_, Acc) ->
-		       Acc
-	       end, [], Cache),
-    {reply, {ok, Result}, StateName, State};
-
 handle_sync_event({close, ChannelId}, _, StateName,
 		  #state{connection_state =
 			     #connection{channel_cache = Cache}} = State0) ->
@@ -852,19 +879,7 @@ handle_sync_event({close, ChannelId}, _, StateName,
 	    undefined ->
 		State0
 	end,
-    {reply, ok, StateName, next_packet(State)};
-
-handle_sync_event(stop, _, _StateName, #state{connection_state = Connection0,
-					     role = Role,
-					     opts = Opts} = State0) ->
-    {disconnect, Reason, {{replies, Replies}, Connection}} =
-	ssh_connection:handle_msg(#ssh_msg_disconnect{code = ?SSH_DISCONNECT_BY_APPLICATION,
-						      description = "User closed down connection",
-						      language = "en"}, Connection0, Role),
-    State = send_replies(Replies, State0),
-    SSHOpts = proplists:get_value(ssh_opts, Opts),
-    disconnect_fun(Reason, SSHOpts),
-    {stop, normal, ok, State#state{connection_state = Connection}}.
+    {reply, ok, StateName, next_packet(State)}.
 
 %%--------------------------------------------------------------------
 -spec handle_info({atom(), port(), binary()} | {atom(), port()} |
@@ -1152,54 +1167,38 @@ init_ssh(server = Role, Vsn, Version, Options, Socket) ->
 
 supported_host_keys(client, _, Options) ->
     try
-	case extract_algs(proplists:get_value(pref_public_key_algs, Options, false), []) of
-	    false ->
-		["ssh-rsa", "ssh-dss"];
-	    Algs ->
-		Algs
+	case proplists:get_value(public_key, 
+				 proplists:get_value(preferred_algorithms,Options,[])
+				) of
+	    undefined -> 
+		ssh_auth:default_public_key_algorithms();
+	    L ->
+		L -- (L--ssh_auth:default_public_key_algorithms())
 	end
+    of
+	[] ->
+	    {stop, {shutdown, "No public key algs"}};
+	Algs ->
+	    [atom_to_list(A) || A<-Algs]
     catch
 	exit:Reason ->
 	    {stop, {shutdown, Reason}}
     end;
 supported_host_keys(server, KeyCb, Options) ->
-    lists:foldl(fun(Type, Acc) ->
-			case available_host_key(KeyCb, Type, Options) of
-			    {error, _} ->
-				Acc;
-			    Alg ->
-				[Alg | Acc]
-			end
-		end, [],
-		%% Prefered alg last so no need to reverse
-		["ssh-dss", "ssh-rsa"]).
-extract_algs(false, _) ->
-    false;
-extract_algs([],[]) ->
-    false;
-extract_algs([], NewList) ->
-    lists:reverse(NewList);
-extract_algs([H|T], NewList) ->
-    case H of
-	'ssh-dss' ->
-	    extract_algs(T, ["ssh-dss"|NewList]);
-	'ssh-rsa' ->
-	    extract_algs(T, ["ssh-rsa"|NewList])
-    end.
-available_host_key(KeyCb, "ssh-dss"= Alg, Opts) ->
-    case KeyCb:host_key('ssh-dss', Opts) of
-	{ok, _} ->
-	    Alg;
-	Other ->
-	    Other
-    end;
-available_host_key(KeyCb, "ssh-rsa" = Alg, Opts) ->
-    case KeyCb:host_key('ssh-rsa', Opts) of
-	{ok, _} ->
-	    Alg;
-	Other ->
-	    Other
-    end.
+    Algs=
+    [atom_to_list(A) || A <- proplists:get_value(public_key, 
+						 proplists:get_value(preferred_algorithms,Options,[]),
+						 ssh_auth:default_public_key_algorithms()
+						),
+			available_host_key(KeyCb, A, Options)
+    ],
+    Algs.
+
+
+%% Alg :: atom()
+available_host_key(KeyCb, Alg, Opts) ->
+    element(1, catch KeyCb:host_key(Alg, Opts)) == ok.
+
 
 send_msg(Msg, #state{socket = Socket, transport_cb = Transport}) ->
     Transport:send(Socket, Msg).
@@ -1273,7 +1272,6 @@ generate_event(<<?BYTE(Byte), _/binary>> = Msg, StateName,
 	       #state{
 		  role = Role,
 		  starter = User,
-		  opts = Opts,
 		  renegotiate = Renegotiation,
 		  connection_state = Connection0} = State0, EncData)
   when  Byte == ?SSH_MSG_GLOBAL_REQUEST;
@@ -1293,8 +1291,17 @@ generate_event(<<?BYTE(Byte), _/binary>> = Msg, StateName,
     ConnectionMsg =  ssh_message:decode(Msg),
     State1 = generate_event_new_state(State0, EncData),
     try ssh_connection:handle_msg(ConnectionMsg, Connection0, Role) of
-	{{replies, Replies}, Connection} ->
-	    State = send_replies(Replies,  State1#state{connection_state = Connection}),
+	{{replies, Replies0}, Connection} ->
+	    if StateName == connected ->
+		    Replies = Replies0,
+		    State2  = State1;
+	       true ->
+		    {ConnReplies, Replies} =
+			lists:splitwith(fun not_connected_filter/1, Replies0),
+		    Q = State1#state.event_queue ++ ConnReplies,
+		    State2  = State1#state{ event_queue = Q }
+	    end,
+	    State = send_replies(Replies,  State2#state{connection_state = Connection}),
 	    {next_state, StateName, next_packet(State)};
 	{noreply, Connection} ->
 	    {next_state, StateName, next_packet(State1#state{connection_state = Connection})};
@@ -1304,21 +1311,17 @@ generate_event(<<?BYTE(Byte), _/binary>> = Msg, StateName,
 	    User ! {self(), not_connected, Reason},
 	    {stop, {shutdown, normal},
 	     next_packet(State#state{connection_state = Connection})};
-	{disconnect, Reason, {{replies, Replies}, Connection}} ->
+	{disconnect, _Reason, {{replies, Replies}, Connection}} ->
 	    State = send_replies(Replies,  State1#state{connection_state = Connection}),
-	    SSHOpts = proplists:get_value(ssh_opts, Opts),
-	    disconnect_fun(Reason, SSHOpts),
 	    {stop, {shutdown, normal}, State#state{connection_state = Connection}}
     catch
 	_:Error ->
-	    {disconnect, Reason, {{replies, Replies}, Connection}} =
+	    {disconnect, _Reason, {{replies, Replies}, Connection}} =
 		ssh_connection:handle_msg(
 		  #ssh_msg_disconnect{code = ?SSH_DISCONNECT_BY_APPLICATION,
 					  description = "Internal error",
 				      language = "en"}, Connection0, Role),
 	    State = send_replies(Replies,  State1#state{connection_state = Connection}),
-	    SSHOpts = proplists:get_value(ssh_opts, Opts),
-	    disconnect_fun(Reason, SSHOpts),
 	    {stop, {shutdown, Error}, State#state{connection_state = Connection}}
     end;
 
@@ -1467,15 +1470,43 @@ next_packet(#state{socket = Socket} = State) ->
     State.
 
 after_new_keys(#state{renegotiate = true} = State) ->
-    {connected, State#state{renegotiate = false}};
+    State1 = State#state{renegotiate = false, event_queue = []},
+    lists:foldr(fun after_new_keys_events/2, {next_state, connected, State1}, State#state.event_queue);
 after_new_keys(#state{renegotiate = false, 
 		      ssh_params = #ssh{role = client} = Ssh0} = State) ->
     {Msg, Ssh} = ssh_auth:service_request_msg(Ssh0),
     send_msg(Msg, State),
-    {userauth, State#state{ssh_params = Ssh}};
+    {next_state, userauth, State#state{ssh_params = Ssh}};
 after_new_keys(#state{renegotiate = false,  
 		      ssh_params = #ssh{role = server}} = State) ->
-    {userauth, State}.
+    {next_state, userauth, State}.
+
+after_new_keys_events({sync, _Event, From}, {stop, _Reason, _StateData}=Terminator) ->
+    gen_fsm:reply(From, {error, closed}),
+    Terminator;
+after_new_keys_events(_, {stop, _Reason, _StateData}=Terminator) ->
+    Terminator;
+after_new_keys_events({sync, Event, From}, {next_state, StateName, StateData}) ->
+    case handle_sync_event(Event, From, StateName, StateData) of
+	{reply, Reply, NextStateName, NewStateData} ->
+	    gen_fsm:reply(From, Reply),
+	    {next_state, NextStateName, NewStateData};
+	{next_state, NextStateName, NewStateData}->
+	    {next_state, NextStateName, NewStateData};
+	{stop, Reason, Reply, NewStateData} ->
+	    gen_fsm:reply(From, Reply),
+	    {stop, Reason, NewStateData}
+    end;
+after_new_keys_events({event, Event}, {next_state, StateName, StateData}) ->
+    case handle_event(Event, StateName, StateData) of
+	{next_state, NextStateName, NewStateData}->
+	    {next_state, NextStateName, NewStateData};
+	{stop, Reason, NewStateData} ->
+	    {stop, Reason, NewStateData}
+    end;
+after_new_keys_events({connection_reply, _Data} = Reply, {StateName, State}) ->
+    NewState = send_replies([Reply], State),
+    {next_state, StateName, NewState}.
 
 handle_ssh_packet_data(RemainingSshPacketLen, DecData, EncData, StateName, 
 		       State) ->
@@ -1537,12 +1568,14 @@ handle_disconnect(#ssh_msg_disconnect{} = DisconnectMsg, State, Error) ->
 handle_disconnect(Type,  #ssh_msg_disconnect{description = Desc} = Msg, #state{connection_state = Connection0,									role = Role} = State0) ->
     {disconnect, _, {{replies, Replies}, Connection}} = ssh_connection:handle_msg(Msg, Connection0, Role),
     State = send_replies(disconnect_replies(Type, Msg, Replies), State0),
+    disconnect_fun(Desc, State#state.opts),
     {stop, {shutdown, Desc}, State#state{connection_state = Connection}}.
 
 handle_disconnect(Type, #ssh_msg_disconnect{description = Desc} = Msg, #state{connection_state = Connection0,
 									      role = Role} = State0, ErrorMsg) ->
     {disconnect, _, {{replies, Replies}, Connection}} = ssh_connection:handle_msg(Msg, Connection0, Role),
     State = send_replies(disconnect_replies(Type, Msg, Replies), State0),
+    disconnect_fun(Desc, State#state.opts),
     {stop, {shutdown, {Desc, ErrorMsg}}, State#state{connection_state = Connection}}.
 
 disconnect_replies(own, Msg, Replies) ->
@@ -1636,6 +1669,11 @@ log_error(Reason) ->
     error_logger:error_report(Report),
     "Internal error".
 
+not_connected_filter({connection_reply, _Data}) ->
+    true;
+not_connected_filter(_) ->
+    false.
+
 send_replies([], State) ->
     State;
 send_replies([{connection_reply, Data} | Rest], #state{ssh_params = Ssh0} = State) ->
@@ -1656,6 +1694,8 @@ send_reply({flow_control, Cache, Channel, From, Msg}) ->
 send_reply({flow_control, From, Msg}) ->
     gen_fsm:reply(From, Msg).
 
+disconnect_fun({disconnect,Msg}, Opts) ->
+    disconnect_fun(Msg, Opts);
 disconnect_fun(_, undefined) ->
     ok;
 disconnect_fun(Reason, Opts) ->
diff --git a/lib/ssh/src/ssh_info.erl b/lib/ssh/src/ssh_info.erl
index 30df32c4fd..9c79d773a7 100644
--- a/lib/ssh/src/ssh_info.erl
+++ b/lib/ssh/src/ssh_info.erl
@@ -187,7 +187,7 @@ line(D, Len, Char) ->
 	    
 
 datetime() ->
-    {{YYYY,MM,DD}, {H,M,S}} = calendar:now_to_universal_time(now()),
+    {{YYYY,MM,DD}, {H,M,S}} = calendar:now_to_universal_time(erlang:timestamp()),
     lists:flatten(io_lib:format('~4w-~2..0w-~2..0w ~2..0w:~2..0w:~2..0w UTC',[YYYY,MM,DD, H,M,S])).
 
 
diff --git a/lib/ssh/src/ssh_sftp.erl b/lib/ssh/src/ssh_sftp.erl
index 613f8f25b2..bab688f226 100644
--- a/lib/ssh/src/ssh_sftp.erl
+++ b/lib/ssh/src/ssh_sftp.erl
@@ -111,7 +111,7 @@ start_channel(Cm, Opts) when is_pid(Cm) ->
 			    TimeOut
 		    end;
 		{error, Reason} ->
-		    {error, Reason};
+		    {error, format_channel_start_error(Reason)};
 		ignore ->
 		    {error, ignore}
 	    end;
@@ -136,7 +136,7 @@ start_channel(Host, Port, Opts) ->
 			    TimeOut
 		    end;
 		{error, Reason} ->
-		    {error, Reason};
+		    {error, format_channel_start_error(Reason)};
 		ignore ->
 		    {error, ignore}
 	    end;
@@ -491,9 +491,9 @@ init([Cm, ChannelId, Options]) ->
 			inf = new_inf(),
 			opts = Options}};
 	failure ->
-	    {stop, "server failed to start sftp subsystem"};
+	    {stop, {shutdown, "server failed to start sftp subsystem"}};
 	Error ->
-	    {stop, Error}
+	    {stop, {shutdown, Error}}
     end.
     
 %%--------------------------------------------------------------------
@@ -508,12 +508,12 @@ init([Cm, ChannelId, Options]) ->
 %%--------------------------------------------------------------------
 handle_call({{timeout, infinity}, wait_for_version_negotiation}, From,
 	    #state{xf = #ssh_xfer{vsn = undefined} = Xf} = State) ->
-    {noreply, State#state{xf = Xf#ssh_xfer{vsn = From}}}; 
+    {noreply, State#state{xf = Xf#ssh_xfer{vsn = {wait, From, undefined}}}};
 
 handle_call({{timeout, Timeout}, wait_for_version_negotiation}, From,
 	    #state{xf = #ssh_xfer{vsn = undefined} = Xf} = State) ->
-    timer:send_after(Timeout, {timeout, undefined, From}),
-    {noreply, State#state{xf = Xf#ssh_xfer{vsn = From}}}; 
+    TRef = erlang:send_after(Timeout, self(), {timeout, undefined, From}),
+    {noreply, State#state{xf = Xf#ssh_xfer{vsn = {wait, From, TRef}}}};
 
 handle_call({_, wait_for_version_negotiation}, _, State) ->
     {reply, ok, State};
@@ -865,7 +865,12 @@ do_handle_reply(#state{xf = Xf} = State,
     case Xf#ssh_xfer.vsn of
 	undefined ->
 	    ok;
-	From ->
+	{wait, From, TRef} ->
+	    if is_reference(TRef) ->
+		    erlang:cancel_timer(TRef);
+	       true ->
+		    ok
+	    end,
 	    ssh_channel:reply(From, ok)
     end,    
     State#state{xf = Xf#ssh_xfer{vsn = Version, ext = Ext}, rep_buf = Rest};
@@ -1412,3 +1417,8 @@ open_buf1(Pid, BufInfo0, FileOpTimeout, CryptoState, ChunkSize) ->
     BufHandle = make_ref(),
     call(Pid, {put_bufinf,BufHandle,BufInfo}, FileOpTimeout),
     {ok,BufHandle}.
+
+format_channel_start_error({shutdown, Reason}) ->
+    Reason;
+format_channel_start_error(Reason) ->
+    Reason.
diff --git a/lib/ssh/src/ssh_system_sup.erl b/lib/ssh/src/ssh_system_sup.erl
index 660fe8bb65..acf94b4b73 100644
--- a/lib/ssh/src/ssh_system_sup.erl
+++ b/lib/ssh/src/ssh_system_sup.erl
@@ -28,13 +28,15 @@
 
 -behaviour(supervisor).
 
+-include("ssh.hrl").
+
 -export([start_link/1, stop_listener/1,
-	 stop_listener/2, stop_system/1,
-	 stop_system/2, system_supervisor/2,
+	 stop_listener/3, stop_system/1,
+	 stop_system/3, system_supervisor/3,
 	 subsystem_supervisor/1, channel_supervisor/1, 
 	 connection_supervisor/1, 
-	 acceptor_supervisor/1, start_subsystem/2, restart_subsystem/2,
-	 restart_acceptor/2, stop_subsystem/2]).
+	 acceptor_supervisor/1, start_subsystem/2, restart_subsystem/3,
+	 restart_acceptor/3, stop_subsystem/2]).
 
 %% Supervisor callback
 -export([init/1]).
@@ -45,14 +47,15 @@
 start_link(ServerOpts) ->
     Address = proplists:get_value(address, ServerOpts),
     Port = proplists:get_value(port, ServerOpts),
-    Name = make_name(Address, Port),
+    Profile = proplists:get_value(profile,  proplists:get_value(ssh_opts, ServerOpts), ?DEFAULT_PROFILE),
+    Name = make_name(Address, Port, Profile),
     supervisor:start_link({local, Name}, ?MODULE, [ServerOpts]).
 
 stop_listener(SysSup) ->
     stop_acceptor(SysSup). 
 
-stop_listener(Address, Port) ->
-    Name = make_name(Address, Port),
+stop_listener(Address, Port, Profile) ->
+    Name = make_name(Address, Port, Profile),
     stop_acceptor(whereis(Name)). 
  
 stop_system(SysSup) ->
@@ -60,12 +63,12 @@ stop_system(SysSup) ->
     spawn(fun() -> sshd_sup:stop_child(Name) end),
     ok.
 
-stop_system(Address, Port) -> 
-    spawn(fun() -> sshd_sup:stop_child(Address, Port) end),
+stop_system(Address, Port, Profile) -> 
+    spawn(fun() -> sshd_sup:stop_child(Address, Port, Profile) end),
     ok.
 
-system_supervisor(Address, Port) ->
-    Name = make_name(Address, Port),
+system_supervisor(Address, Port, Profile) ->
+    Name = make_name(Address, Port, Profile),
     whereis(Name).
 
 subsystem_supervisor(SystemSup) ->
@@ -103,9 +106,9 @@ stop_subsystem(SystemSup, SubSys) ->
     end.
 
 
-restart_subsystem(Address, Port) ->
-    SysSupName = make_name(Address, Port),
-    SubSysName = id(ssh_subsystem_sup, Address, Port),
+restart_subsystem(Address, Port, Profile) ->
+    SysSupName = make_name(Address, Port, Profile),
+    SubSysName = id(ssh_subsystem_sup, Address, Port, Profile),
     case supervisor:terminate_child(SysSupName, SubSysName) of
 	ok ->
 	    supervisor:restart_child(SysSupName, SubSysName);
@@ -113,9 +116,9 @@ restart_subsystem(Address, Port) ->
 	    Error
     end.
 
-restart_acceptor(Address, Port) ->
-    SysSupName = make_name(Address, Port),
-    AcceptorName = id(ssh_acceptor_sup, Address, Port),
+restart_acceptor(Address, Port, Profile) ->
+    SysSupName = make_name(Address, Port, Profile),
+    AcceptorName = id(ssh_acceptor_sup, Address, Port, Profile),
     supervisor:restart_child(SysSupName, AcceptorName).
 
 %%%=========================================================================
@@ -137,7 +140,8 @@ child_specs(ServerOpts) ->
 ssh_acceptor_child_spec(ServerOpts) ->
     Address = proplists:get_value(address, ServerOpts),
     Port = proplists:get_value(port, ServerOpts),
-    Name = id(ssh_acceptor_sup, Address, Port),
+    Profile = proplists:get_value(profile,  proplists:get_value(ssh_opts, ServerOpts), ?DEFAULT_PROFILE),
+    Name = id(ssh_acceptor_sup, Address, Port, Profile),
     StartFunc = {ssh_acceptor_sup, start_link, [ServerOpts]},
     Restart = transient, 
     Shutdown = infinity,
@@ -155,12 +159,23 @@ ssh_subsystem_child_spec(ServerOpts) ->
     {Name, StartFunc, Restart, Shutdown, Type, Modules}.
 
 
-id(Sup, Address, Port) ->
-    {Sup, Address, Port}.
-
-make_name(Address, Port) ->
-    list_to_atom(lists:flatten(io_lib:format("ssh_system_~p_~p_sup", 
-					     [Address, Port]))).
+id(Sup, Address, Port, Profile) ->
+    case is_list(Address) of	
+	true ->
+	    {Sup, any, Port, Profile};
+	false ->
+	    {Sup, Address, Port, Profile}
+	end.
+
+make_name(Address, Port, Profile) ->
+    case is_list(Address) of
+	true  ->
+	    list_to_atom(lists:flatten(io_lib:format("ssh_system_~p_~p_~p_sup", 
+						     [any, Port, Profile])));
+	false  ->
+	    list_to_atom(lists:flatten(io_lib:format("ssh_system_~p_~p_~p_sup", 
+						     [Address, Port, Profile])))
+    end.
 
 ssh_subsystem_sup([{_, Child, _, [ssh_subsystem_sup]} | _]) ->
     Child;
@@ -178,3 +193,4 @@ stop_acceptor(Sup) ->
 			  supervisor:which_children(Sup)],
     supervisor:terminate_child(AcceptorSup, Name).
 
+
diff --git a/lib/ssh/src/ssh_transport.erl b/lib/ssh/src/ssh_transport.erl
index 6c0873fd9e..ea9bca2390 100644
--- a/lib/ssh/src/ssh_transport.erl
+++ b/lib/ssh/src/ssh_transport.erl
@@ -31,6 +31,8 @@
 
 -export([versions/2, hello_version_msg/1]).
 -export([next_seqnum/1, decrypt_first_block/2, decrypt_blocks/3,
+	 supported_algorithms/0, supported_algorithms/1,
+	 default_algorithms/0, default_algorithms/1,
 	 is_valid_mac/3,
 	 handle_hello_version/1,
 	 key_exchange_init_msg/1,
@@ -42,6 +44,68 @@
 	 unpack/3, decompress/2, ssh_packet/2, pack/2, msg_data/1,
 	 sign/3, verify/4]).
 
+%%%----------------------------------------------------------------------------
+%%%
+%%% There is a difference between supported and default algorithms. The
+%%% SUPPORTED algorithms can be handled (maybe untested...). The DEFAULT ones
+%%% are announced in ssh_msg_kexinit and in ssh:default_algorithms/0 to the
+%%% user.
+%%%
+%%% A supported algorithm can be requested in the option 'preferred_algorithms',
+%%% but may give unexpected results because of being promoted to default.
+%%%
+%%% This makes it possible to add experimental algorithms (in supported_algorithms)
+%%% and test them without letting the default users know about them.
+%%%
+
+default_algorithms() -> [{K,default_algorithms(K)} || K <- algo_classes()].
+
+algo_classes() -> [kex, public_key, cipher, mac, compression].
+
+default_algorithms(compression) ->
+    %% Do not announce '[email protected]' because there seem to be problems
+    supported_algorithms(compression, same(['[email protected]']));
+default_algorithms(Alg) ->
+    supported_algorithms(Alg).
+
+
+supported_algorithms() -> [{K,supported_algorithms(K)} || K <- algo_classes()].
+
+supported_algorithms(kex) ->
+    ['diffie-hellman-group1-sha1'];
+supported_algorithms(public_key) ->
+    ssh_auth:default_public_key_algorithms();
+supported_algorithms(cipher) ->
+    Supports = crypto:supports(),
+    CipherAlgos = [{aes_ctr, 'aes128-ctr'}, {aes_cbc128, 'aes128-cbc'}, {des3_cbc, '3des-cbc'}],
+    Algs = [SshAlgo ||
+	       {CryptoAlgo, SshAlgo} <- CipherAlgos,
+	       lists:member(CryptoAlgo, proplists:get_value(ciphers, Supports, []))],
+    same(Algs);
+supported_algorithms(mac) ->
+    Supports = crypto:supports(),
+    HashAlgos = [{sha256, 'hmac-sha2-256'}, {sha, 'hmac-sha1'}],
+    Algs = [SshAlgo ||
+	       {CryptoAlgo, SshAlgo} <- HashAlgos,
+	       lists:member(CryptoAlgo, proplists:get_value(hashs, Supports, []))],
+    same(Algs);
+supported_algorithms(compression) ->
+    same(['none','zlib','[email protected]']).
+
+
+supported_algorithms(Key, [{client2server,BL1},{server2client,BL2}]) ->
+    [{client2server,As1},{server2client,As2}] = supported_algorithms(Key),
+    [{client2server,As1--BL1},{server2client,As2--BL2}];
+supported_algorithms(Key, BlackList) ->
+    supported_algorithms(Key) -- BlackList.
+
+    
+
+
+same(Algs) ->  [{client2server,Algs}, {server2client,Algs}].
+
+
+%%%----------------------------------------------------------------------------
 versions(client, Options)->
     Vsn = proplists:get_value(vsn, Options, ?DEFAULT_CLIENT_VERSION),
     {Vsn, format_version(Vsn, software_version(Options))};
@@ -128,62 +192,45 @@ key_exchange_init_msg(Ssh0) ->
 
 kex_init(#ssh{role = Role, opts = Opts, available_host_keys = HostKeyAlgs}) ->
     Random = ssh_bits:random(16),
-    Compression = case proplists:get_value(compression, Opts, none) of
-		      openssh_zlib -> ["[email protected]", "none"];
-		      zlib -> ["zlib", "none"];
-		      none -> ["none", "zlib"]
-		  end,
-    kexinit_messsage(Role, Random, Compression, HostKeyAlgs).
+    PrefAlgs =
+	case proplists:get_value(preferred_algorithms,Opts) of
+	    undefined -> 
+		default_algorithms();
+	    Algs0 ->
+		Algs0
+	end,
+    kexinit_message(Role, Random, PrefAlgs, HostKeyAlgs).
 
 key_init(client, Ssh, Value) ->
     Ssh#ssh{c_keyinit = Value};
 key_init(server, Ssh, Value) ->
     Ssh#ssh{s_keyinit = Value}.
 
-available_ssh_algos() ->
-    Supports = crypto:supports(),
-    CipherAlgos = [{aes_ctr, "aes128-ctr"}, {aes_cbc128, "aes128-cbc"}, {des3_cbc, "3des-cbc"}],
-    Ciphers = [SshAlgo ||
-	{CryptoAlgo, SshAlgo} <- CipherAlgos,
-	lists:member(CryptoAlgo, proplists:get_value(ciphers, Supports, []))],
-    HashAlgos = [{sha256, "hmac-sha2-256"}, {sha, "hmac-sha1"}],
-    Hashs = [SshAlgo ||
-	{CryptoAlgo, SshAlgo} <- HashAlgos,
-	lists:member(CryptoAlgo, proplists:get_value(hashs, Supports, []))],
-    {Ciphers, Hashs}.
-
-kexinit_messsage(client, Random, Compression, HostKeyAlgs) ->
-    {CipherAlgs, HashAlgs} = available_ssh_algos(),
-    #ssh_msg_kexinit{ 
-		  cookie = Random,
-		  kex_algorithms = ["diffie-hellman-group1-sha1"],
-		  server_host_key_algorithms = HostKeyAlgs,
-		  encryption_algorithms_client_to_server = CipherAlgs,
-		  encryption_algorithms_server_to_client = CipherAlgs,
-		  mac_algorithms_client_to_server = HashAlgs,
-		  mac_algorithms_server_to_client = HashAlgs,
-		  compression_algorithms_client_to_server = Compression,
-		  compression_algorithms_server_to_client = Compression,
-		  languages_client_to_server = [],
-		  languages_server_to_client = []
-		 };
 
-kexinit_messsage(server, Random, Compression, HostKeyAlgs) ->
-    {CipherAlgs, HashAlgs} = available_ssh_algos(),
+kexinit_message(_Role, Random, Algs, HostKeyAlgs) ->
     #ssh_msg_kexinit{
 		  cookie = Random,
-		  kex_algorithms = ["diffie-hellman-group1-sha1"],
+		  kex_algorithms = to_strings( get_algs(kex,Algs) ),
 		  server_host_key_algorithms = HostKeyAlgs,
-		  encryption_algorithms_client_to_server = CipherAlgs,
-		  encryption_algorithms_server_to_client = CipherAlgs,
-		  mac_algorithms_client_to_server = HashAlgs,
-		  mac_algorithms_server_to_client = HashAlgs,
-		  compression_algorithms_client_to_server = Compression,
-		  compression_algorithms_server_to_client = Compression,
+		  encryption_algorithms_client_to_server = c2s(cipher,Algs),
+		  encryption_algorithms_server_to_client = s2c(cipher,Algs),
+		  mac_algorithms_client_to_server = c2s(mac,Algs),
+		  mac_algorithms_server_to_client = s2c(mac,Algs),
+		  compression_algorithms_client_to_server = c2s(compression,Algs),
+		  compression_algorithms_server_to_client = s2c(compression,Algs),
 		  languages_client_to_server = [],
 		  languages_server_to_client = []
 		 }.
 
+c2s(Key, Algs) -> x2y(client2server, Key, Algs).
+s2c(Key, Algs) -> x2y(server2client, Key, Algs).
+
+x2y(DirectionKey, Key, Algs) -> to_strings(proplists:get_value(DirectionKey, get_algs(Key,Algs))).
+
+get_algs(Key, Algs) -> proplists:get_value(Key, Algs, default_algorithms(Key)).
+
+to_strings(L) -> lists:map(fun erlang:atom_to_list/1, L).
+
 new_keys_message(Ssh0) ->
     {SshPacket, Ssh} = 
 	ssh_packet(#ssh_msg_newkeys{}, Ssh0),
@@ -448,6 +495,7 @@ select_algorithm(Role, Client, Server) ->
 	       decompress = Decompression,
 	       c_lng = C_Lng,
 	       s_lng = S_Lng},
+%%ct:pal("~p~n Client=~p~n Server=~p~n    Alg=~p~n",[Role,Client,Server,Alg]),
     {ok, Alg}.
 
 select_encrypt_decrypt(client, Client, Server) ->
diff --git a/lib/ssh/src/sshd_sup.erl b/lib/ssh/src/sshd_sup.erl
index 60222f5172..e879629ccb 100644
--- a/lib/ssh/src/sshd_sup.erl
+++ b/lib/ssh/src/sshd_sup.erl
@@ -26,8 +26,10 @@
 
 -behaviour(supervisor).
 
+-include("ssh.hrl").
+
 -export([start_link/1, start_child/1, stop_child/1,
-	 stop_child/2, system_name/1]).
+	 stop_child/3, system_name/1]).
 
 %% Supervisor callback
 -export([init/1]).
@@ -40,13 +42,14 @@ start_link(Servers) ->
 
 start_child(ServerOpts) ->
     Address = proplists:get_value(address, ServerOpts),
-    Port = proplists:get_value(port, ServerOpts),
-    case ssh_system_sup:system_supervisor(Address, Port) of
+    Port = proplists:get_value(port, ServerOpts),    
+    Profile = proplists:get_value(profile,  proplists:get_value(ssh_opts, ServerOpts), ?DEFAULT_PROFILE),
+    case ssh_system_sup:system_supervisor(Address, Port, Profile) of
        undefined ->
 	    Spec =  child_spec(Address, Port, ServerOpts),    
 	    case supervisor:start_child(?MODULE, Spec) of
 		{error, already_present} ->
-		    Name = id(Address, Port),
+		    Name = id(Address, Port, Profile),
 		    supervisor:delete_child(?MODULE, Name),
 		    supervisor:start_child(?MODULE, Spec);
 		Reply ->
@@ -60,8 +63,8 @@ start_child(ServerOpts) ->
 stop_child(Name) ->
     supervisor:terminate_child(?MODULE, Name).
 
-stop_child(Address, Port) ->
-    Name = id(Address, Port),
+stop_child(Address, Port, Profile) ->
+    Name = id(Address, Port, Profile),
     stop_child(Name).
 
 system_name(SysSup) ->
@@ -87,7 +90,8 @@ init([Servers]) ->
 %%%  Internal functions
 %%%=========================================================================
 child_spec(Address, Port, ServerOpts) ->
-    Name = id(Address, Port),
+    Profile = proplists:get_value(profile,  proplists:get_value(ssh_opts, ServerOpts), ?DEFAULT_PROFILE),
+    Name = id(Address, Port,Profile),
     StartFunc = {ssh_system_sup, start_link, [ServerOpts]},
     Restart = temporary, 
     Shutdown = infinity,
@@ -95,8 +99,13 @@ child_spec(Address, Port, ServerOpts) ->
     Type = supervisor,
     {Name, StartFunc, Restart, Shutdown, Type, Modules}.
 
-id(Address, Port) ->
-    {server, ssh_system_sup, Address, Port}.
+id(Address, Port, Profile) ->
+    case is_list(Address) of	
+	true ->
+	    {server, ssh_system_sup, any, Port, Profile};
+	false ->
+	    {server, ssh_system_sup, Address, Port, Profile}
+    end.
 
 system_name([], _ ) ->
     undefined;
diff --git a/lib/ssh/test/Makefile b/lib/ssh/test/Makefile
index 740dbd0235..843b1d906d 100644
--- a/lib/ssh/test/Makefile
+++ b/lib/ssh/test/Makefile
@@ -32,6 +32,7 @@ VSN=$(GS_VSN)
 
 MODULES= \
 	ssh_test_lib \
+	ssh_sup_SUITE \
 	ssh_basic_SUITE \
 	ssh_to_openssh_SUITE \
 	ssh_sftp_SUITE \
@@ -40,7 +41,8 @@ MODULES= \
 	ssh_connection_SUITE \
 	ssh_echo_server \
 	ssh_peername_sockname_server \
-	ssh_test_cli 
+	ssh_test_cli \
+	ssh_relay
 
 HRL_FILES_NEEDED_IN_TEST= \
 	$(ERL_TOP)/lib/ssh/src/ssh.hrl \
diff --git a/lib/ssh/test/ssh_basic_SUITE.erl b/lib/ssh/test/ssh_basic_SUITE.erl
index fa7b426545..7e75d84d82 100644
--- a/lib/ssh/test/ssh_basic_SUITE.erl
+++ b/lib/ssh/test/ssh_basic_SUITE.erl
@@ -23,12 +23,14 @@
 
 -include_lib("common_test/include/ct.hrl").
 -include_lib("kernel/include/inet.hrl").
+-include_lib("kernel/include/file.hrl").
 
 %% Note: This directive should only be used in test suites.
 -compile(export_all).
 
 -define(NEWLINE, <<"\r\n">>).
 
+-define(REKEY_DATA_TMO, 65000).
 %%--------------------------------------------------------------------
 %% Common Test interface functions -----------------------------------
 %%--------------------------------------------------------------------
@@ -44,9 +46,13 @@ all() ->
      {group, dsa_pass_key},
      {group, rsa_pass_key},
      {group, internal_error},
+     connectfun_disconnectfun_server,
+     connectfun_disconnectfun_client,
+     {group, renegotiate},
      daemon_already_started,
      server_password_option,
      server_userpassword_option,
+     {group, dir_options},
      double_close,
      ssh_connect_timeout,
      ssh_connect_arg4_timeout,
@@ -54,6 +60,9 @@ all() ->
      ssh_daemon_minimal_remote_max_packet_size_option,
      ssh_msg_debug_fun_option_client,
      ssh_msg_debug_fun_option_server,
+     disconnectfun_option_server,
+     disconnectfun_option_client,
+     preferred_algorithms,
      id_string_no_opt_client,
      id_string_own_string_client,
      id_string_random_client,
@@ -69,6 +78,7 @@ groups() ->
      {dsa_pass_key, [], [pass_phrase]},
      {rsa_pass_key, [], [pass_phrase]},
      {internal_error, [], [internal_error]},
+     {renegotiate, [], [rekey, rekey_limit, renegotiate1, renegotiate2]},
      {hardening_tests, [], [ssh_connect_nonegtimeout_connected_parallel,
 			    ssh_connect_nonegtimeout_connected_sequential,
 			    ssh_connect_negtimeout_parallel,
@@ -77,19 +87,21 @@ groups() ->
 			    max_sessions_ssh_connect_sequential,
 			    max_sessions_sftp_start_channel_parallel,
 			    max_sessions_sftp_start_channel_sequential
-			   ]}
+			   ]},
+     {dir_options, [], [user_dir_option,
+			system_dir_option]}
     ].
 
 
 basic_tests() ->
     [send, close, peername_sockname,
      exec, exec_compressed, shell, cli, known_hosts, 
-     idle_time, rekey, openssh_zlib_basic_test,
-     misc_ssh_options, inet_option].
+     idle_time, openssh_zlib_basic_test, misc_ssh_options, inet_option].
 
 
 %%--------------------------------------------------------------------
 init_per_suite(Config) ->
+    catch crypto:stop(),
     case catch crypto:start() of
 	ok ->
 	    Config;
@@ -128,6 +140,30 @@ init_per_group(internal_error, Config) ->
     ssh_test_lib:setup_dsa(DataDir, PrivDir),
     file:delete(filename:join(PrivDir, "system/ssh_host_dsa_key")),
     Config;
+init_per_group(dir_options, Config) ->
+    PrivDir = ?config(priv_dir, Config),
+    %% Make unreadable dir:
+    Dir_unreadable = filename:join(PrivDir, "unread"),
+    ok = file:make_dir(Dir_unreadable),
+    {ok,F1} = file:read_file_info(Dir_unreadable),
+    ok = file:write_file_info(Dir_unreadable, 
+			      F1#file_info{mode = F1#file_info.mode band (bnot 8#00444)}),
+    %% Make readable file:
+    File_readable = filename:join(PrivDir, "file"),
+    ok = file:write_file(File_readable, <<>>),
+    %% Check:
+    case {file:read_file_info(Dir_unreadable), 
+	  file:read_file_info(File_readable)} of
+	{{ok, #file_info{type=directory, access=Md}},
+	 {ok, #file_info{type=regular, access=Mf}}} when Md=/=read, Md=/=read_write ->
+	    %% Save:
+	    [{unreadable_dir, Dir_unreadable},
+	     {readable_file, File_readable} 
+	     | Config];
+	X ->
+	    ct:log("#file_info : ~p",[X]),
+	    {skip, "File or dir mode settings failed"}
+    end;
 init_per_group(_, Config) ->
     Config.
 
@@ -287,7 +323,7 @@ exec_compressed(Config) when is_list(Config) ->
     UserDir = ?config(priv_dir, Config), 
 
     {Pid, Host, Port} = ssh_test_lib:daemon([{system_dir, SystemDir},{user_dir, UserDir},
-					     {compression, zlib},
+					     {preferred_algorithms,[{compression, [zlib]}]},
 					     {failfun, fun ssh_test_lib:failfun/2}]),
     
     ConnectionRef =
@@ -333,25 +369,175 @@ idle_time(Config) ->
 rekey() ->
     [{doc, "Idle timeout test"}].
 rekey(Config) ->
-    SystemDir = filename:join(?config(priv_dir, Config), system),
+    SystemDir = ?config(data_dir, Config),
     UserDir = ?config(priv_dir, Config),
 
     {Pid, Host, Port} = ssh_test_lib:daemon([{system_dir, SystemDir},
-					     {user_dir, UserDir},
+    					     {user_dir, UserDir},
 					     {failfun, fun ssh_test_lib:failfun/2},
+    					     {user_passwords,
+    					      [{"simon", "says"}]},
 					     {rekey_limit, 0}]),
+
     ConnectionRef =
 	ssh_test_lib:connect(Host, Port, [{silently_accept_hosts, true},
 					  {user_dir, UserDir},
+					  {user, "simon"},
+					  {password, "says"},
 					  {user_interaction, false},
 					  {rekey_limit, 0}]),
     receive
-    after 200000 ->
+    after ?REKEY_DATA_TMO ->
 	    %%By this time rekeying would have been done
 	    ssh:close(ConnectionRef),
 	    ssh:stop_daemon(Pid)
     end.
 %%--------------------------------------------------------------------
+rekey_limit() ->
+    [{doc, "Test rekeying by data volume"}].
+rekey_limit(Config) ->
+    SystemDir = ?config(data_dir, Config),
+    UserDir = ?config(priv_dir, Config),
+    DataFile = filename:join(UserDir, "rekey.data"),
+
+    {Pid, Host, Port} = ssh_test_lib:daemon([{system_dir, SystemDir},
+    					     {user_dir, UserDir},
+    					     {user_passwords,
+    					      [{"simon", "says"}]}]),
+    {ok, SftpPid, ConnectionRef} =
+    	ssh_sftp:start_channel(Host, Port, [{system_dir, SystemDir},
+    					    {user_dir, UserDir},
+    					    {user, "simon"},
+    					    {password, "says"},
+    					    {rekey_limit, 2500},
+    					    {user_interaction, false},
+    					    {silently_accept_hosts, true}]),
+
+    Kex1 = get_kex_init(ConnectionRef),
+
+    timer:sleep(?REKEY_DATA_TMO),
+    Kex1 = get_kex_init(ConnectionRef),
+
+    Data = lists:duplicate(9000,1),
+    ok = ssh_sftp:write_file(SftpPid, DataFile, Data),
+
+    timer:sleep(?REKEY_DATA_TMO),
+    Kex2 = get_kex_init(ConnectionRef),
+
+    false = (Kex2 == Kex1),
+
+    timer:sleep(?REKEY_DATA_TMO),
+    Kex2 = get_kex_init(ConnectionRef),
+
+    ok = ssh_sftp:write_file(SftpPid, DataFile, "hi\n"),
+
+    timer:sleep(?REKEY_DATA_TMO),
+    Kex2 = get_kex_init(ConnectionRef),
+
+    false = (Kex2 == Kex1),
+
+    timer:sleep(?REKEY_DATA_TMO),
+    Kex2 = get_kex_init(ConnectionRef),
+
+
+    ssh_sftp:stop_channel(SftpPid),
+    ssh:close(ConnectionRef),
+    ssh:stop_daemon(Pid).
+
+%%--------------------------------------------------------------------
+renegotiate1() ->
+    [{doc, "Test rekeying with simulataneous send request"}].
+renegotiate1(Config) ->
+    SystemDir = ?config(data_dir, Config),
+    UserDir = ?config(priv_dir, Config),
+    DataFile = filename:join(UserDir, "renegotiate1.data"),
+
+    {Pid, Host, DPort} = ssh_test_lib:daemon([{system_dir, SystemDir},
+					       {user_dir, UserDir},
+					       {user_passwords,
+						[{"simon", "says"}]}]),
+    RPort = ssh_test_lib:inet_port(),
+
+    {ok,RelayPid} = ssh_relay:start_link({0,0,0,0}, RPort, Host, DPort),
+
+    {ok, SftpPid, ConnectionRef} =
+	ssh_sftp:start_channel(Host, RPort, [{system_dir, SystemDir},
+					     {user_dir, UserDir},
+					     {user, "simon"},
+					     {password, "says"},
+					     {user_interaction, false},
+					     {silently_accept_hosts, true}]),
+
+    Kex1 = get_kex_init(ConnectionRef),
+
+    {ok, Handle} = ssh_sftp:open(SftpPid, DataFile, [write]),
+
+    ok = ssh_sftp:write(SftpPid, Handle, "hi\n"),
+
+    ssh_relay:hold(RelayPid, rx, 20, 1000),
+    ssh_connection_handler:renegotiate(ConnectionRef),
+    spawn(fun() -> ok=ssh_sftp:write(SftpPid, Handle, "another hi\n") end),
+
+    timer:sleep(2000),
+
+    Kex2 = get_kex_init(ConnectionRef),
+
+    false = (Kex2 == Kex1),
+    
+    ssh_relay:stop(RelayPid),
+    ssh_sftp:stop_channel(SftpPid),
+    ssh:close(ConnectionRef),
+    ssh:stop_daemon(Pid).
+
+%%--------------------------------------------------------------------
+renegotiate2() ->
+    [{doc, "Test rekeying with inflight messages from peer"}].
+renegotiate2(Config) ->
+    SystemDir = ?config(data_dir, Config),
+    UserDir = ?config(priv_dir, Config),
+    DataFile = filename:join(UserDir, "renegotiate1.data"),
+
+    {Pid, Host, DPort} = ssh_test_lib:daemon([{system_dir, SystemDir},
+					       {user_dir, UserDir},
+					       {user_passwords,
+						[{"simon", "says"}]}]),
+    RPort = ssh_test_lib:inet_port(),
+
+    {ok,RelayPid} = ssh_relay:start_link({0,0,0,0}, RPort, Host, DPort),
+
+    {ok, SftpPid, ConnectionRef} =
+	ssh_sftp:start_channel(Host, RPort, [{system_dir, SystemDir},
+					     {user_dir, UserDir},
+					     {user, "simon"},
+					     {password, "says"},
+					     {user_interaction, false},
+					     {silently_accept_hosts, true}]),
+
+    Kex1 = get_kex_init(ConnectionRef),
+
+    {ok, Handle} = ssh_sftp:open(SftpPid, DataFile, [write]),
+
+    ok = ssh_sftp:write(SftpPid, Handle, "hi\n"),
+
+    ssh_relay:hold(RelayPid, rx, 20, infinity),
+    spawn(fun() -> ok=ssh_sftp:write(SftpPid, Handle, "another hi\n") end),
+    %% need a small pause here to ensure ssh_sftp:write is executed
+    ct:sleep(10),
+    ssh_connection_handler:renegotiate(ConnectionRef),
+    ssh_relay:release(RelayPid, rx),
+
+    timer:sleep(2000),
+
+    Kex2 = get_kex_init(ConnectionRef),
+
+    false = (Kex2 == Kex1),
+
+    ssh_relay:stop(RelayPid),
+    ssh_sftp:stop_channel(SftpPid),
+    ssh:close(ConnectionRef),
+    ssh:stop_daemon(Pid).
+
+%%--------------------------------------------------------------------
 shell() ->
     [{doc, "Test that ssh:shell/2 works"}].
 shell(Config) when is_list(Config) ->
@@ -496,6 +682,48 @@ server_userpassword_option(Config) when is_list(Config) ->
     ssh:stop_daemon(Pid).
 
 %%--------------------------------------------------------------------
+system_dir_option(Config) ->
+    DirUnread = proplists:get_value(unreadable_dir,Config),
+    FileRead = proplists:get_value(readable_file,Config),
+
+    case ssh_test_lib:daemon([{system_dir, DirUnread}]) of
+	{error,{eoptions,{{system_dir,DirUnread},eacces}}} ->
+	    ok;
+	{Pid1,_Host1,Port1} when is_pid(Pid1),is_integer(Port1) ->
+	    ssh:stop_daemon(Pid1),
+	    ct:fail("Didn't detect that dir is unreadable", [])
+	end,
+    
+    case ssh_test_lib:daemon([{system_dir, FileRead}]) of
+	{error,{eoptions,{{system_dir,FileRead},enotdir}}} ->
+	    ok;
+	{Pid2,_Host2,Port2} when is_pid(Pid2),is_integer(Port2) ->
+	    ssh:stop_daemon(Pid2),
+	    ct:fail("Didn't detect that option is a plain file", [])
+    end.
+
+
+user_dir_option(Config) ->
+    DirUnread = proplists:get_value(unreadable_dir,Config),
+    FileRead = proplists:get_value(readable_file,Config),
+    %% Any port will do (beware, implementation knowledge!):
+    Port = 65535,
+
+    case ssh:connect("localhost", Port, [{user_dir, DirUnread}]) of
+	{error,{eoptions,{{user_dir,DirUnread},eacces}}} ->
+	    ok;
+	{error,econnrefused} ->
+	    ct:fail("Didn't detect that dir is unreadable", [])
+    end,
+
+    case ssh:connect("localhost", Port, [{user_dir, FileRead}]) of
+	{error,{eoptions,{{user_dir,FileRead},enotdir}}} ->
+	    ok;
+	{error,econnrefused} ->
+	    ct:fail("Didn't detect that option is a plain file", [])
+    end.
+
+%%--------------------------------------------------------------------
 ssh_msg_debug_fun_option_client() ->
     [{doc, "validate client that uses the 'ssh_msg_debug_fun' option"}].
 ssh_msg_debug_fun_option_client(Config) ->
@@ -538,6 +766,74 @@ ssh_msg_debug_fun_option_client(Config) ->
     end.
 
 %%--------------------------------------------------------------------
+connectfun_disconnectfun_server(Config) ->
+    PrivDir = ?config(priv_dir, Config),
+    UserDir = filename:join(PrivDir, nopubkey), % to make sure we don't use public-key-auth
+    file:make_dir(UserDir),
+    SysDir = ?config(data_dir, Config),
+
+    Parent = self(),
+    Ref = make_ref(),
+    ConnFun = fun(_,_,_) -> Parent ! {connect,Ref} end,
+    DiscFun = fun(R) -> Parent ! {disconnect,Ref,R} end,
+
+    {Pid, Host, Port} = ssh_test_lib:daemon([{system_dir, SysDir},
+					     {user_dir, UserDir},
+					     {password, "morot"},
+					     {failfun, fun ssh_test_lib:failfun/2},
+					     {disconnectfun, DiscFun},
+					     {connectfun, ConnFun}]),
+    ConnectionRef =
+	ssh_test_lib:connect(Host, Port, [{silently_accept_hosts, true},
+					  {user, "foo"},
+					  {password, "morot"},
+					  {user_dir, UserDir},
+					  {user_interaction, false}]),
+    receive
+	{connect,Ref} ->
+	    ssh:close(ConnectionRef),
+	    receive
+		{disconnect,Ref,R} ->
+		    ct:log("Disconnect result: ~p",[R]),
+		    ssh:stop_daemon(Pid)
+	    after 2000 ->
+		    {fail, "No disconnectfun action"}
+	    end
+    after 2000 ->
+	    {fail, "No connectfun action"}
+    end.
+
+%%--------------------------------------------------------------------
+connectfun_disconnectfun_client(Config) ->
+    PrivDir = ?config(priv_dir, Config),
+    UserDir = filename:join(PrivDir, nopubkey), % to make sure we don't use public-key-auth
+    file:make_dir(UserDir),
+    SysDir = ?config(data_dir, Config),
+
+    Parent = self(),
+    Ref = make_ref(),
+    DiscFun = fun(R) -> Parent ! {disconnect,Ref,R} end,
+
+    {Pid, Host, Port} = ssh_test_lib:daemon([{system_dir, SysDir},
+					     {user_dir, UserDir},
+					     {password, "morot"},
+					     {failfun, fun ssh_test_lib:failfun/2}]),
+    ConnectionRef =
+	ssh_test_lib:connect(Host, Port, [{silently_accept_hosts, true},
+					  {user, "foo"},
+					  {password, "morot"},
+					  {user_dir, UserDir},
+					  {disconnectfun, DiscFun},
+					  {user_interaction, false}]),
+    ssh:stop_daemon(Pid),
+    receive
+	{disconnect,Ref,R} ->
+	    ct:log("Disconnect result: ~p",[R])
+    after 2000 ->
+	    {fail, "No disconnectfun action"}
+    end.
+
+%%--------------------------------------------------------------------
 ssh_msg_debug_fun_option_server() ->
     [{doc, "validate client that uses the 'ssh_msg_debug_fun' option"}].
 ssh_msg_debug_fun_option_server(Config) ->
@@ -584,6 +880,75 @@ ssh_msg_debug_fun_option_server(Config) ->
     end.
 
 %%--------------------------------------------------------------------
+disconnectfun_option_server(Config) ->
+    PrivDir = ?config(priv_dir, Config),
+    UserDir = filename:join(PrivDir, nopubkey), % to make sure we don't use public-key-auth
+    file:make_dir(UserDir),
+    SysDir = ?config(data_dir, Config),
+
+    Parent = self(),
+    DisConnFun = fun(Reason) -> Parent ! {disconnect,Reason} end,
+
+    {Pid, Host, Port} = ssh_test_lib:daemon([{system_dir, SysDir},
+					     {user_dir, UserDir},
+					     {password, "morot"},
+					     {failfun, fun ssh_test_lib:failfun/2},
+					     {disconnectfun, DisConnFun}]),
+    ConnectionRef =
+	ssh_test_lib:connect(Host, Port, [{silently_accept_hosts, true},
+					  {user, "foo"},
+					  {password, "morot"},
+					  {user_dir, UserDir},
+					  {user_interaction, false}]),
+    ssh:close(ConnectionRef),
+    receive
+	{disconnect,Reason} ->
+	    ct:log("Server detected disconnect: ~p",[Reason]),
+	    ssh:stop_daemon(Pid),
+	    ok
+    after 3000 ->
+	    receive
+		X -> ct:log("received ~p",[X])
+	    after 0 -> ok
+	    end,
+	    {fail,"Timeout waiting for disconnect"}
+    end.
+
+%%--------------------------------------------------------------------
+disconnectfun_option_client(Config) ->
+    PrivDir = ?config(priv_dir, Config),
+    UserDir = filename:join(PrivDir, nopubkey), % to make sure we don't use public-key-auth
+    file:make_dir(UserDir),
+    SysDir = ?config(data_dir, Config),
+
+    Parent = self(),
+    DisConnFun = fun(Reason) -> Parent ! {disconnect,Reason} end,
+
+    {Pid, Host, Port} = ssh_test_lib:daemon([{system_dir, SysDir},
+					     {user_dir, UserDir},
+					     {password, "morot"},
+					     {failfun, fun ssh_test_lib:failfun/2}]),
+    _ConnectionRef =
+	ssh_test_lib:connect(Host, Port, [{silently_accept_hosts, true},
+					  {user, "foo"},
+					  {password, "morot"},
+					  {user_dir, UserDir},
+					  {user_interaction, false},
+					  {disconnectfun, DisConnFun}]),
+    ssh:stop_daemon(Pid),
+    receive
+	{disconnect,Reason} ->
+	    ct:log("Client detected disconnect: ~p",[Reason]),
+	    ok
+    after 3000 ->
+	    receive
+		X -> ct:log("received ~p",[X])
+	    after 0 -> ok
+	    end,
+	    {fail,"Timeout waiting for disconnect"}
+    end.
+
+%%--------------------------------------------------------------------
 known_hosts() ->
     [{doc, "check that known_hosts is updated correctly"}].
 known_hosts(Config) when is_list(Config) ->
@@ -813,7 +1178,7 @@ ssh_connect_arg4_timeout(_Config) ->
 
     %% try to connect with a timeout, but "supervise" it
     Client = spawn(fun() ->
-			   T0 = now(),
+			   T0 = erlang:monotonic_time(),
 			   Rc = ssh:connect("localhost",Port,[],Timeout),
 			   ct:log("Client ssh:connect got ~p",[Rc]),
 			   Parent ! {done,self(),Rc,T0}
@@ -822,13 +1187,12 @@ ssh_connect_arg4_timeout(_Config) ->
     %% Wait for client reaction on the connection try:
     receive
 	{done, Client, {error,timeout}, T0} ->
-	    Msp = ms_passed(T0, now()),
+	    Msp = ms_passed(T0),
 	    exit(Server,hasta_la_vista___baby),
 	    Low = 0.9*Timeout,
 	    High =  1.1*Timeout,
 	    ct:log("Timeout limits: ~.4f - ~.4f ms, timeout "
                    "was ~.4f ms, expected ~p ms",[Low,High,Msp,Timeout]),
-	    %%ct:log("Timeout limits: ~p--~p, my timeout was ~p, expected ~p",[Low,High,Msp0,Timeout]),
 	    if
 		Low<Msp, Msp<High -> ok;
 		true -> {fail, "timeout not within limits"}
@@ -847,12 +1211,12 @@ ssh_connect_arg4_timeout(_Config) ->
 	    {fail, "Didn't timeout"}
     end.
 
-%% Help function
-%% N2-N1
-ms_passed(N1={_,_,M1}, N2={_,_,M2}) ->
-    {0,{0,Min,Sec}} = calendar:time_difference(calendar:now_to_local_time(N1),
-					       calendar:now_to_local_time(N2)),
-    1000 * (Min*60 + Sec + (M2-M1)/1000000).
+%% Help function, elapsed milliseconds since T0
+ms_passed(T0) ->
+    %% OTP 18
+    erlang:convert_time_unit(erlang:monotonic_time() - T0,
+			     native,
+			     micro_seconds) / 1000.
 
 %%--------------------------------------------------------------------
 packet_size_zero(Config) ->
@@ -913,57 +1277,114 @@ ssh_daemon_minimal_remote_max_packet_size_option(Config) ->
     ssh:stop_daemon(Server).
     
 %%--------------------------------------------------------------------
+%% This test try every algorithm by connecting to an Erlang server
+preferred_algorithms(Config) ->
+    SystemDir = ?config(data_dir, Config),
+    PrivDir = ?config(priv_dir, Config),
+    UserDir = filename:join(PrivDir, nopubkey), % to make sure we don't use public-key-auth
+    file:make_dir(UserDir),
+
+    {Server, Host, Port} = ssh_test_lib:daemon([{system_dir, SystemDir},
+						{user_dir, UserDir},
+						{user_passwords, [{"vego", "morot"}]},
+						{failfun, fun ssh_test_lib:failfun/2}]),
+    Available = ssh:default_algorithms(),
+    Tests = [[{Tag,[Alg]}] || {Tag, SubAlgs} <- Available,
+			  is_atom(hd(SubAlgs)),
+			  Alg <- SubAlgs]
+	++  [[{Tag,[{T1,[A1]},{T2,[A2]}]}] || {Tag, [{T1,As1},{T2,As2}]} <- Available,
+					      A1 <- As1,
+					      A2 <- As2],
+    ct:log("TESTS: ~p",[Tests]),
+    [connect_exec_channel(Host,Port,PrefAlgs)  || PrefAlgs <- Tests],
+    ssh:stop_daemon(Server).
+
+
+connect_exec_channel(_Host, Port, Algs) ->
+    ct:log("Try ~p",[Algs]),
+    ConnectionRef = ssh_test_lib:connect(Port, [{silently_accept_hosts, true},
+						{user_interaction, false},
+						{user, "vego"},
+						{password, "morot"},
+						{preferred_algorithms,Algs}
+					       ]),
+    chan_exec(ConnectionRef, "2*21.", <<"42\n">>),
+    ssh:close(ConnectionRef).
+
+chan_exec(ConnectionRef, Cmnd, Expected) ->
+    {ok, ChannelId0} = ssh_connection:session_channel(ConnectionRef, infinity),
+    success = ssh_connection:exec(ConnectionRef, ChannelId0,Cmnd, infinity),
+    Data0 = {ssh_cm, ConnectionRef, {data, ChannelId0, 0, Expected}},
+    case ssh_test_lib:receive_exec_result(Data0) of
+	expected ->
+	    ssh_test_lib:receive_exec_end(ConnectionRef, ChannelId0);
+	{unexpected_msg,{ssh_cm, ConnectionRef, {exit_status, ChannelId0, 0}}
+	 = ExitStatus0} ->
+	    ct:pal("0: Collected data ~p", [ExitStatus0]),
+	    ssh_test_lib:receive_exec_result(Data0,
+					     ConnectionRef, ChannelId0);
+	Other0 ->
+	    ct:fail(Other0)
+    end.
+
+%%--------------------------------------------------------------------
 id_string_no_opt_client(Config) ->
-    {Server, Host, Port} = fake_daemon(Config),
-    {error,_} = ssh:connect(Host, Port, []),
+    {Server, _Host, Port} = fake_daemon(Config),
+    {error,_} = ssh:connect("localhost", Port, [], 1000),
     receive
 	{id,Server,"SSH-2.0-Erlang/"++Vsn} ->
 	    true = expected_ssh_vsn(Vsn);
 	{id,Server,Other} ->
 	    ct:fail("Unexpected id: ~s.",[Other])
+    after 5000 ->
+	    {fail,timeout}
     end.
 
 %%--------------------------------------------------------------------
 id_string_own_string_client(Config) ->
-    {Server, Host, Port} = fake_daemon(Config),
-    {error,_} = ssh:connect(Host, Port, [{id_string,"Pelle"}]),
+    {Server, _Host, Port} = fake_daemon(Config),
+    {error,_} = ssh:connect("localhost", Port, [{id_string,"Pelle"}], 1000),
     receive
 	{id,Server,"SSH-2.0-Pelle\r\n"} ->
 	    ok;
 	{id,Server,Other} ->
 	    ct:fail("Unexpected id: ~s.",[Other])
+    after 5000 ->
+	    {fail,timeout}
     end.
 
 %%--------------------------------------------------------------------
 id_string_random_client(Config) ->
-    {Server, Host, Port} = fake_daemon(Config),
-    {error,_} = ssh:connect(Host, Port, [{id_string,random}]),
+    {Server, _Host, Port} = fake_daemon(Config),
+    {error,_} = ssh:connect("localhost", Port, [{id_string,random}], 1000),
     receive
 	{id,Server,Id="SSH-2.0-Erlang"++_} ->
 	    ct:fail("Unexpected id: ~s.",[Id]);
 	{id,Server,Rnd="SSH-2.0-"++_} ->
-	    ct:log("Got ~s.",[Rnd]);
+	    ct:log("Got correct ~s",[Rnd]);
 	{id,Server,Id} ->
 	    ct:fail("Unexpected id: ~s.",[Id])
+    after 5000 ->
+	    {fail,timeout}
     end.
 
 %%--------------------------------------------------------------------
 id_string_no_opt_server(Config) ->
     {_Server, Host, Port} = std_daemon(Config, []),
-    {ok,S1}=gen_tcp:connect(Host,Port,[{active,false}]),
+    {ok,S1}=gen_tcp:connect(Host,Port,[{active,false},{packet,line}]),
     {ok,"SSH-2.0-Erlang/"++Vsn} = gen_tcp:recv(S1, 0, 2000),
     true = expected_ssh_vsn(Vsn).
 
 %%--------------------------------------------------------------------
 id_string_own_string_server(Config) ->
     {_Server, Host, Port} = std_daemon(Config, [{id_string,"Olle"}]),
-    {ok,S1}=gen_tcp:connect(Host,Port,[{active,false}]),
+    {ok,S1}=gen_tcp:connect(Host,Port,[{active,false},{packet,line}]),
     {ok,"SSH-2.0-Olle\r\n"} = gen_tcp:recv(S1, 0, 2000).
 
 %%--------------------------------------------------------------------
 id_string_random_server(Config) ->
     {_Server, Host, Port} = std_daemon(Config, [{id_string,random}]),
-    {ok,S1}=gen_tcp:connect(Host,Port,[{active,false}]),
+    {ok,S1}=gen_tcp:connect(Host,Port,[{active,false},{packet,line}]),
     {ok,"SSH-2.0-"++Rnd} = gen_tcp:recv(S1, 0, 2000),
     case Rnd of
 	"Erlang"++_ -> ct:log("Id=~p",[Rnd]),
@@ -989,8 +1410,10 @@ ssh_connect_negtimeout(Config, Parallel) ->
 					      {failfun, fun ssh_test_lib:failfun/2}]),
     
     {ok,Socket} = gen_tcp:connect(Host, Port, []),
-    ct:pal("And now sleeping 1.2*NegTimeOut (~p ms)...", [round(1.2 * NegTimeOut)]),
-    receive after round(1.2 * NegTimeOut) -> ok end,
+
+    Factor = 2,
+    ct:pal("And now sleeping ~p*NegTimeOut (~p ms)...", [Factor, round(Factor * NegTimeOut)]),
+    ct:sleep(round(Factor * NegTimeOut)),
     
     case inet:sockname(Socket) of
 	{ok,_} -> ct:fail("Socket not closed");
@@ -1033,8 +1456,11 @@ ssh_connect_nonegtimeout_connected(Config, Parallel) ->
 	    ct:pal("---Erlang shell start: ~p~n", [ErlShellStart]),
 	    one_shell_op(IO, NegTimeOut),
 	    one_shell_op(IO, NegTimeOut),
-	    ct:pal("And now sleeping 1.2*NegTimeOut (~p ms)...", [round(1.2 * NegTimeOut)]),
-	    receive after round(1.2 * NegTimeOut) -> ok end,
+
+	    Factor = 2,
+	    ct:pal("And now sleeping ~p*NegTimeOut (~p ms)...", [Factor, round(Factor * NegTimeOut)]),
+	    ct:sleep(round(Factor * NegTimeOut)),
+    
 	    one_shell_op(IO, NegTimeOut)
     end,
     exit(Shell, kill).
@@ -1076,12 +1502,15 @@ openssh_zlib_basic_test(Config) ->
 
     {Pid, Host, Port} = ssh_test_lib:daemon([{system_dir, SystemDir},
 					     {user_dir, UserDir},
+					     {preferred_algorithms,[{compression, ['[email protected]']}]},
 					     {failfun, fun ssh_test_lib:failfun/2}]),
     ConnectionRef =
 	ssh_test_lib:connect(Host, Port, [{silently_accept_hosts, true},
 					  {user_dir, UserDir},
 					  {user_interaction, false},
-					  {compression, openssh_zlib}]),
+					  {preferred_algorithms,[{compression, ['[email protected]',
+										none]}]}
+					 ]),
     ok = ssh:close(ConnectionRef),
     ssh:stop_daemon(Pid).
 
@@ -1159,6 +1588,7 @@ max_sessions(Config, ParallelLogin, Connect0) when is_function(Connect0,2) ->
 		    %% This is expected
 		    %% Now stop one connection and try to open one more
 		    ok = ssh:close(hd(Connections)),
+		    receive after 250 -> ok end, % sleep so the supervisor has time to count down. Not nice...
 		    try Connect(Host,Port)
 		    of
 			_ConnectionRef1 ->
@@ -1274,13 +1704,14 @@ expected_ssh_vsn(Str) ->
 	_:_ -> true %% ssh not started so we dont't know
     end.
 	    
-	    
+
 fake_daemon(_Config) ->
     Parent = self(),
     %% start the server
     Server = spawn(fun() ->
-			   {ok,Sl} = gen_tcp:listen(0,[]),
+			   {ok,Sl} = gen_tcp:listen(0,[{packet,line}]),
 			   {ok,{Host,Port}} = inet:sockname(Sl),
+			   ct:log("fake_daemon listening on ~p:~p~n",[Host,Port]),
 			   Parent ! {sockname,self(),Host,Port},
 			   Rsa = gen_tcp:accept(Sl),
 			   ct:log("Server gen_tcp:accept got ~p",[Rsa]),
@@ -1294,3 +1725,18 @@ fake_daemon(_Config) ->
 	{sockname,Server,ServerHost,ServerPort} -> {Server, ServerHost, ServerPort}
     end.
 
+%% get_kex_init - helper function to get key_exchange_init_msg
+get_kex_init(Conn) ->
+    %% First, validate the key exchange is complete (StateName == connected)
+    {connected,S} = sys:get_state(Conn),
+    %% Next, walk through the elements of the #state record looking
+    %% for the #ssh_msg_kexinit record. This method is robust against
+    %% changes to either record. The KEXINIT message contains a cookie
+    %% unique to each invocation of the key exchange procedure (RFC4253)
+    SL = tuple_to_list(S),
+    case lists:keyfind(ssh_msg_kexinit, 1, SL) of
+	false ->
+	    throw(not_found);
+	KexInit ->
+	    KexInit
+    end.
diff --git a/lib/ssh/test/ssh_connection_SUITE.erl b/lib/ssh/test/ssh_connection_SUITE.erl
index e3871b3feb..f0c337cf2f 100644
--- a/lib/ssh/test/ssh_connection_SUITE.erl
+++ b/lib/ssh/test/ssh_connection_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2008-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2008-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -21,6 +21,7 @@
 -module(ssh_connection_SUITE).
 
 -include_lib("common_test/include/ct.hrl").
+-include_lib("ssh/src/ssh_connect.hrl").
 
 -compile(export_all).
 
@@ -64,6 +65,7 @@ ptty() ->
 
 %%--------------------------------------------------------------------
 init_per_suite(Config) ->
+    catch crypto:stop(),
     case catch crypto:start() of
 	ok ->
 	    Config;
@@ -75,12 +77,13 @@ end_per_suite(_Config) ->
     crypto:stop().
 
 %%--------------------------------------------------------------------
-init_per_group(openssh, _Config) ->
+init_per_group(openssh, Config) ->
     case gen_tcp:connect("localhost", 22, []) of
 	{error,econnrefused} ->
 	    {skip,"No openssh deamon"};
 	{ok, Socket} ->
-	    gen_tcp:close(Socket)
+	    gen_tcp:close(Socket),
+	    ssh_test_lib:openssh_sanity_check(Config)
     end;
 init_per_group(_, Config) ->
     Config.
@@ -92,7 +95,7 @@ end_per_group(_, Config) ->
 init_per_testcase(_TestCase, Config) ->
     %% To make sure we start clean as it is not certain that
     %% end_per_testcase will be run!
-    ssh:stop(),
+    end_per_testcase(Config),
     ssh:start(),
     Config.
 
@@ -269,7 +272,7 @@ ptty_alloc(Config) when is_list(Config) ->
 							     {user_interaction, false}]),
     {ok, ChannelId} = ssh_connection:session_channel(ConnectionRef, infinity),
     success = ssh_connection:ptty_alloc(ConnectionRef, ChannelId, 
-					[{term, default_term()}, {width, 70}, {high, 20}]),
+					[{term, os:getenv("TERM", ?DEFAULT_TERMINAL)}, {width, 70}, {height, 20}]),
     ssh:close(ConnectionRef).
 
 
@@ -282,7 +285,7 @@ ptty_alloc_pixel(Config) when is_list(Config) ->
 							     {user_interaction, false}]),
     {ok, ChannelId} = ssh_connection:session_channel(ConnectionRef, infinity),
     success = ssh_connection:ptty_alloc(ConnectionRef, ChannelId, 
-					[{term, default_term()}, {pixel_widh, 630}, {pixel_hight, 470}]),
+					[{term, os:getenv("TERM", ?DEFAULT_TERMINAL)}, {pixel_widh, 630}, {pixel_hight, 470}]),
     ssh:close(ConnectionRef).
 
 %%--------------------------------------------------------------------
@@ -647,11 +650,3 @@ ssh_exec(Cmd) ->
     spawn(fun() ->
 		  io:format(Cmd ++ "\n")
           end).
-
-default_term() ->
-    case os:getenv("TERM") of
-	false ->
-	    "vt100";
-	Str when is_list(Str)->
-	    Str
-    end.	
diff --git a/lib/ssh/test/ssh_relay.erl b/lib/ssh/test/ssh_relay.erl
new file mode 100644
index 0000000000..a4f2bad2e2
--- /dev/null
+++ b/lib/ssh/test/ssh_relay.erl
@@ -0,0 +1,407 @@
+%%%-------------------------------------------------------------------
+%%% @author Simon Cornish <[email protected]>
+%%% @copyright (C) 2015, Simon Cornish
+%%% @doc
+%%% Provide manipulatable TCP-level relaying for testing SSH
+%%% @end
+%%% Created :  7 May 2015 by Simon Cornish <[email protected]>
+%%%-------------------------------------------------------------------
+-module(ssh_relay).
+
+-behaviour(gen_server).
+
+%% API
+-export([start_link/4]).
+-export([stop/1]).
+-export([hold/4, release/2, release_next/3]).
+
+%% gen_server callbacks
+-export([init/1, handle_call/3, handle_cast/2, handle_info/2,
+	 terminate/2, code_change/3]).
+
+-record(hold, {
+	  port,
+	  n,
+	  tmo,
+	  tref,
+	  q = []
+	 }).
+
+-record(state, {
+	  local_addr,
+	  local_port,
+	  peer_addr,
+	  peer_port,
+	  lpid,
+	  local,
+	  peer,
+	  tx_hold,
+	  rx_hold
+	 }).
+
+-define(ACCEPT_TMO, 200).
+%%%===================================================================
+%%% API
+%%%===================================================================
+%%--------------------------------------------------------------------
+%% @doc
+%% Hold N (or 'all') messages in given direction.
+%% Messages will be released after the N+1th message or
+%% Tmo ms or 'infinity'
+%%
+%% Dir is 'tx' for direction local -> peer
+%%    and 'rx' for direction peer  -> local
+%%
+%% An Error, ealready, is returned if there is already a hold
+%% in the given direction
+%%
+%% @spec hold(Srv, Dir, N, Tmo) -> ok | {error, Error}
+%% @end
+%%--------------------------------------------------------------------
+hold(Srv, Dir, N, Tmo) ->
+    gen_server:call(Srv, {hold, Dir, N, Tmo}).
+
+%%--------------------------------------------------------------------
+%% @doc
+%% Release all held messages in given direction.
+%%
+%% An Error, enoent, is returned if there is no hold
+%% in the given direction
+%%
+%% @spec release(Srv, Dir) -> ok | {error, Error}
+%% @end
+%%--------------------------------------------------------------------
+release(Srv, Dir) ->
+    gen_server:call(Srv, {release, Dir}).
+
+%%--------------------------------------------------------------------
+%% @doc
+%% Release all held messages in given direction after the 
+%% next message in the trigger direction
+%%
+%% An Error, enoent, is returned if there is no hold
+%% in the given direction
+%%
+%% @spec release_next(Srv, Dir, TriggerDir) -> ok | {error, Error}
+%% @end
+%%--------------------------------------------------------------------
+release_next(Srv, Dir, TriggerDir) ->
+    gen_server:call(Srv, {release_next, Dir, TriggerDir}).
+
+%%--------------------------------------------------------------------
+%% @doc
+%% Starts the server
+%%
+%% @spec start_link() -> {ok, Pid} | ignore | {error, Error}
+%% @end
+%%--------------------------------------------------------------------
+start_link(ListenAddr, ListenPort, PeerAddr, PeerPort) ->
+    gen_server:start_link(?MODULE, [ListenAddr, ListenPort, PeerAddr, PeerPort], []).
+
+stop(Srv) ->
+    unlink(Srv),
+    Srv ! stop.
+
+%%%===================================================================
+%%% gen_server callbacks
+%%%===================================================================
+
+%%--------------------------------------------------------------------
+%% @private
+%% @doc
+%% Initializes the server
+%%
+%% @spec init(Args) -> {ok, State} |
+%%                     {ok, State, Timeout} |
+%%                     ignore |
+%%                     {stop, Reason}
+%% @end
+%%--------------------------------------------------------------------
+init([ListenAddr, ListenPort, PeerAddr, PeerPort | Options]) ->
+    IfAddr = case ListenAddr of
+		 {0,0,0,0} ->
+		     [];
+		 _ ->
+		     [{ifaddr, ListenAddr}]
+	     end,
+    case gen_tcp:listen(ListenPort, [{reuseaddr, true}, {backlog, 1}, {active, false}, binary | IfAddr]) of
+	{ok, LSock} ->
+	    Parent = self(),
+	    {LPid, _LMod} = spawn_monitor(fun() -> listen(Parent, LSock) end),
+	    S = #state{local_addr = ListenAddr,
+		       local_port = ListenPort,
+		       lpid = LPid,
+		       peer_addr = PeerAddr,
+		       peer_port = PeerPort
+		      },
+	    {ok, S};
+	Error ->
+	    {stop, Error}
+    end.
+
+%%--------------------------------------------------------------------
+%% @private
+%% @doc
+%% Handling call messages
+%%
+%% @spec handle_call(Request, From, State) ->
+%%                                   {reply, Reply, State} |
+%%                                   {reply, Reply, State, Timeout} |
+%%                                   {noreply, State} |
+%%                                   {noreply, State, Timeout} |
+%%                                   {stop, Reason, Reply, State} |
+%%                                   {stop, Reason, State}
+%% @end
+%%--------------------------------------------------------------------
+handle_call({hold, Dir, N, Tmo}, _From, State) ->
+    case Dir of
+	tx ->
+	    do_hold(#state.tx_hold, State#state.peer, N, Tmo, State);
+	rx ->
+	    do_hold(#state.rx_hold, State#state.local, N, Tmo, State);
+	_ ->
+	    {reply, {error, einval}, State}
+    end;
+handle_call({release, Dir}, _From, State) ->
+    case Dir of
+	tx ->
+	    do_release(#state.tx_hold, State);
+	rx ->
+	    do_release(#state.rx_hold, State);
+	_ ->
+	    {reply, {error, einval}, State}
+    end;
+handle_call({release_next, _Dir, _TriggerDir}, _From, State) ->
+    {reply, {error, nyi}, State};
+
+handle_call(Request, _From, State) ->
+    Reply = {unhandled, Request},
+    {reply, Reply, State}.
+
+%%--------------------------------------------------------------------
+%% @private
+%% @doc
+%% Handling cast messages
+%%
+%% @spec handle_cast(Msg, State) -> {noreply, State} |
+%%                                  {noreply, State, Timeout} |
+%%                                  {stop, Reason, State}
+%% @end
+%%--------------------------------------------------------------------
+handle_cast(_Msg, State) ->
+    {noreply, State}.
+
+%%--------------------------------------------------------------------
+%% @private
+%% @doc
+%% Handling all non call/cast messages
+%%
+%% @spec handle_info(Info, State) -> {noreply, State} |
+%%                                   {noreply, State, Timeout} |
+%%                                   {stop, Reason, State}
+%% @end
+%%--------------------------------------------------------------------
+handle_info({tcp, Local, Data}, S) when S#state.local == Local ->
+    S1 = do_local(Data, S),
+    {noreply, S1};
+
+handle_info({tcp_error, Local, Error}, S) when S#state.local == Local ->
+    S1 = do_local({error, Error}, S),
+    {noreply, S1};
+
+handle_info({tcp_closed, Local}, S) when S#state.local == Local ->
+    S1 = do_local(closed, S),
+    {noreply, S1};
+
+handle_info({tcp, Peer, Data}, S) when S#state.peer == Peer ->
+    S1 = do_peer(Data, S),
+    {noreply, S1};
+
+handle_info({tcp_error, Peer, Error}, S) when S#state.peer == Peer ->
+    S1 = do_peer({error, Error}, S),
+    {noreply, S1};
+
+handle_info({tcp_closed, Peer}, S) when S#state.peer == Peer ->
+    S1 = do_peer(closed, S),
+    {noreply, S1};
+
+handle_info({accept, Local}, S) ->
+    S1 = do_accept(Local, S),
+    {noreply, S1};
+
+handle_info({activate, Local}, State) ->
+    inet:setopts(Local, [{active, true}]),
+    {noreply, State};
+
+handle_info({release, Pos}, S) ->
+    {reply, _, S1} = do_release(Pos,S),
+    {noreply, S1};
+
+handle_info(stop, State) ->
+    {stop, normal, State};
+
+handle_info({'DOWN', _Ref, _process, LPid, Reason}, S) when S#state.lpid == LPid ->
+    io:format("Acceptor has finished: ~p~n", [Reason]),
+    {noreply, S};
+
+handle_info(_Info, State) ->
+    io:format("Unhandled info: ~p~n", [_Info]),
+    {noreply, State}.
+
+%%--------------------------------------------------------------------
+%% @private
+%% @doc
+%% This function is called by a gen_server when it is about to
+%% terminate. It should be the opposite of Module:init/1 and do any
+%% necessary cleaning up. When it returns, the gen_server terminates
+%% with Reason. The return value is ignored.
+%%
+%% @spec terminate(Reason, State) -> void()
+%% @end
+%%--------------------------------------------------------------------
+terminate(_Reason, _State) ->
+    ok.
+
+%%--------------------------------------------------------------------
+%% @private
+%% @doc
+%% Convert process state when code is changed
+%%
+%% @spec code_change(OldVsn, State, Extra) -> {ok, NewState}
+%% @end
+%%--------------------------------------------------------------------
+code_change(_OldVsn, State, _Extra) ->
+    {ok, State}.
+
+%%%===================================================================
+%%% Internal functions
+%%%===================================================================
+do_hold(Pos, _Port, _N, _Tmo, S) when element(Pos, S) /= undefined ->
+    {reply, {error, ealready}, S};
+do_hold(Pos, Port, N, Tmo, S) ->
+    TRef = if is_integer(Tmo) andalso Tmo > 0 ->
+		   erlang:send_after(Tmo, self(), {release, Pos});
+	      true ->
+		   undefined
+	   end,
+    Hold = #hold{port = Port, n = N, tmo = Tmo, tref = TRef},
+    {reply, ok, setelement(Pos, S, Hold)}.
+
+do_release(HPos, S) when element(HPos, S) == undefined ->
+    {reply, {error, enoent}, S};
+do_release(HPos, S) ->
+    #hold{port = Port, tref = TRef, q = Q} = element(HPos, S),
+    lists:foreach(fun(M) -> gen_tcp:send(Port, M), erlang:yield() end, Q),
+    catch erlang:cancel_timer(TRef),
+    receive
+	{release, HPos} -> ok
+    after 0 ->
+	    ok
+    end,
+    {reply, ok, setelement(HPos, S, undefined)}.
+
+listen(Parent, LSock) ->
+    monitor(process, Parent),
+    do_listen(Parent, LSock).
+
+do_listen(Parent, LSock) ->
+    %% So annoying there is no select-like sematic for this
+    case gen_tcp:accept(LSock, ?ACCEPT_TMO) of
+	{ok, Sock} ->
+	    Parent ! {accept, Sock},
+	    gen_tcp:controlling_process(Sock, Parent),
+	    Parent ! {activate, Sock},
+	    do_flush(Parent, Sock),
+	    gen_tcp:close(LSock);
+	{error, timeout} ->
+	    receive 
+		DOWN when element(1, DOWN) == 'DOWN' ->
+		    ok;
+		stop ->
+		    ok
+	    after 1 ->
+		    do_listen(Parent, LSock)
+	    end;
+	Error ->
+	    gen_tcp:close(LSock),
+	    exit({accept,Error})
+    end.
+
+do_flush(Parent, Sock) ->
+    receive 
+	{Tcp, Sock, _} = Msg when Tcp == tcp; Tcp == tcp_error ->
+	    Parent ! Msg,
+	    do_flush(Parent, Sock);
+	{tcp_closed, Sock} = Msg ->
+	    Parent ! Msg,
+	    do_flush(Parent, Sock)
+    after 1 ->
+	    ok
+    end.
+
+do_accept(Local, S) ->
+    case gen_tcp:connect(S#state.peer_addr, S#state.peer_port, [{active, true}, binary]) of
+	{ok, Peer} ->
+	    S#state{local = Local, peer = Peer};
+	Error ->
+	    exit({connect, Error})
+    end.
+
+do_local(Data, S) when is_binary(Data) ->
+    TxH = S#state.tx_hold,
+    if TxH == undefined ->
+	    gen_tcp:send(S#state.peer, Data),
+	    S;
+       TxH#hold.n == 0 ->
+	    lists:foreach(fun(M) -> gen_tcp:send(S#state.peer, M) end, TxH#hold.q),
+	    gen_tcp:send(S#state.peer, Data),
+	    catch erlang:cancel_timer(TxH#hold.tref),
+	    TxP = #state.tx_hold,
+	    receive
+		{release, TxP} ->
+		    ok
+	    after 0 ->
+		    ok
+	    end,
+	    S#state{tx_hold = undefined};
+       true ->
+	    Q = TxH#hold.q ++ [Data],
+	    N = if is_integer(TxH#hold.n) ->
+			TxH#hold.n -1;
+		   true ->
+			TxH#hold.n
+		end,
+	    S#state{tx_hold = TxH#hold{q = Q, n = N}}
+    end;
+do_local(Error, _S) ->
+    exit({local, Error}).
+
+do_peer(Data, S) when is_binary(Data) ->
+    RxH = S#state.rx_hold,
+    if RxH == undefined ->
+	    gen_tcp:send(S#state.local, Data),
+	    S;
+       RxH#hold.n == 0 ->
+	    lists:foreach(fun(M) -> gen_tcp:send(S#state.local, M) end, RxH#hold.q),
+	    gen_tcp:send(S#state.local, Data),
+	    catch erlang:cancel_timer(RxH#hold.tref),
+	    RxP = #state.rx_hold,
+	    receive
+		{release, RxP} ->
+		    ok
+	    after 0 ->
+		    ok
+	    end,
+	    S#state{rx_hold = undefined};
+       true ->
+	    Q = RxH#hold.q ++ [Data],
+	    N = if is_integer(RxH#hold.n) ->
+			RxH#hold.n -1;
+		   true ->
+			RxH#hold.n
+		end,
+	    S#state{rx_hold = RxH#hold{q = Q, n = N}}
+    end;
+do_peer(Error, _S) ->
+    exit({peer, Error}).
+
diff --git a/lib/ssh/test/ssh_sftp_SUITE.erl b/lib/ssh/test/ssh_sftp_SUITE.erl
index cb74a27638..850b1cbf6b 100644
--- a/lib/ssh/test/ssh_sftp_SUITE.erl
+++ b/lib/ssh/test/ssh_sftp_SUITE.erl
@@ -49,6 +49,7 @@ all() ->
 
 
 init_per_suite(Config) ->
+    catch crypto:stop(),
     case (catch crypto:start()) of
 	ok ->
 	    ssh:start(),
diff --git a/lib/ssh/test/ssh_sftpd_SUITE.erl b/lib/ssh/test/ssh_sftpd_SUITE.erl
index 0ce8eec906..925b02a437 100644
--- a/lib/ssh/test/ssh_sftpd_SUITE.erl
+++ b/lib/ssh/test/ssh_sftpd_SUITE.erl
@@ -68,6 +68,7 @@ groups() ->
 %%--------------------------------------------------------------------
 
 init_per_suite(Config) ->
+    catch crypto:stop(),
     case (catch crypto:start()) of
 	ok ->
 	    DataDir = ?config(data_dir, Config),	    
diff --git a/lib/ssh/test/ssh_sftpd_erlclient_SUITE.erl b/lib/ssh/test/ssh_sftpd_erlclient_SUITE.erl
index cc34cc0793..eac7575486 100644
--- a/lib/ssh/test/ssh_sftpd_erlclient_SUITE.erl
+++ b/lib/ssh/test/ssh_sftpd_erlclient_SUITE.erl
@@ -52,6 +52,7 @@ groups() ->
 
 init_per_suite(Config) ->
     catch ssh:stop(),
+    catch crypto:stop(),
     case catch crypto:start() of
 	ok ->
 	    DataDir = ?config(data_dir, Config),
diff --git a/lib/ssh/test/ssh_sup_SUITE.erl b/lib/ssh/test/ssh_sup_SUITE.erl
new file mode 100644
index 0000000000..6e1595f9fa
--- /dev/null
+++ b/lib/ssh/test/ssh_sup_SUITE.erl
@@ -0,0 +1,192 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2015-2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+
+-module(ssh_sup_SUITE).
+-include_lib("common_test/include/ct.hrl").
+-include_lib("ssh/src/ssh.hrl").
+
+%% Note: This directive should only be used in test suites.
+-compile(export_all).
+
+-define(WAIT_FOR_SHUTDOWN, 500).
+-define(USER, "Alladin").
+-define(PASSWD, "Sesame").
+
+%%--------------------------------------------------------------------
+%% Common Test interface functions -----------------------------------
+%%--------------------------------------------------------------------
+
+all() -> 
+    [default_tree, sshc_subtree, sshd_subtree, sshd_subtree_profile].
+
+groups() -> 
+    [].
+
+init_per_group(_GroupName, Config) ->
+    Config.
+
+end_per_group(_GroupName, Config) ->
+    Config.
+
+init_per_suite(Config) ->
+    Port = ssh_test_lib:inet_port(node()),
+    PrivDir = ?config(priv_dir, Config),
+    UserDir = filename:join(PrivDir, nopubkey), % to make sure we don't use public-key-auth
+    file:make_dir(UserDir),
+    [{userdir, UserDir},{port, Port}, {host, "localhost"}, {host_ip, any} | Config].
+
+end_per_suite(_) ->
+    ok.
+
+init_per_testcase(sshc_subtree, Config) ->  
+    ssh:start(),
+    SystemDir = ?config(data_dir, Config),
+    {Pid, Host, Port} = ssh_test_lib:daemon([{system_dir, SystemDir},
+					      {failfun, fun ssh_test_lib:failfun/2},
+					      {user_passwords,
+					       [{?USER, ?PASSWD}]}]),
+    [{server, {Pid, Host, Port}} | Config];
+init_per_testcase(Case, Config) ->
+    end_per_testcase(Case, Config),
+    ssh:start(),
+    Config.
+end_per_testcase(sshc_subtree, Config) ->
+    {Pid,_,_} = ?config(server, Config), 
+    ssh:stop_daemon(Pid),
+    ssh:stop();
+end_per_testcase(_, _Config) ->
+    ssh:stop().
+
+%%-------------------------------------------------------------------------
+%% Test cases 
+%%-------------------------------------------------------------------------
+default_tree() ->
+    [{doc, "Makes sure the correct processes are started and linked," 
+     "in the default case."}].
+default_tree(Config) when is_list(Config) ->
+    TopSupChildren = supervisor:which_children(ssh_sup),
+    2 = length(TopSupChildren),
+    {value, {sshc_sup, _, supervisor,[sshc_sup]}} =
+	lists:keysearch(sshc_sup, 1, TopSupChildren),
+    {value, {sshd_sup, _,supervisor,[sshd_sup]}} = 
+	lists:keysearch(sshd_sup, 1, TopSupChildren),
+    [] = supervisor:which_children(sshc_sup),
+    [] = supervisor:which_children(sshd_sup).
+
+sshc_subtree() ->
+    [{doc, "Make sure the sshc subtree is correct"}].
+sshc_subtree(Config) when is_list(Config) ->
+    {_Pid, Host, Port} = ?config(server, Config),
+    UserDir = ?config(userdir, Config),
+
+    [] = supervisor:which_children(sshc_sup),
+    {ok, Pid1} = ssh:connect(Host, Port, [{silently_accept_hosts, true},
+					  {user_interaction, false},
+					  {user, ?USER}, {password, ?PASSWD},{user_dir, UserDir}]),
+    [{_, _,supervisor,[ssh_connection_handler]}] =
+	supervisor:which_children(sshc_sup),
+    {ok, Pid2} = ssh:connect(Host, Port, [{silently_accept_hosts, true},
+					  {user_interaction, false},
+					  {user, ?USER}, {password, ?PASSWD}, {user_dir, UserDir}]),
+    [{_,_,supervisor,[ssh_connection_handler]}, 
+     {_,_,supervisor,[ssh_connection_handler]}] = 
+	supervisor:which_children(sshc_sup),
+    ssh:close(Pid1),
+    [{_,_,supervisor,[ssh_connection_handler]}] = 
+	supervisor:which_children(sshc_sup),
+    ssh:close(Pid2),
+    ct:sleep(?WAIT_FOR_SHUTDOWN),
+    [] = supervisor:which_children(sshc_sup).
+
+sshd_subtree() ->
+    [{doc, "Make sure the sshd subtree is correct"}].
+sshd_subtree(Config) when is_list(Config) ->
+    HostIP = ?config(host_ip, Config),
+    Port = ?config(port, Config),
+    SystemDir = ?config(data_dir, Config),
+    ssh:daemon(HostIP, Port, [{system_dir, SystemDir},
+			      {failfun, fun ssh_test_lib:failfun/2},
+			      {user_passwords,
+			       [{?USER, ?PASSWD}]}]),
+    [{{server,ssh_system_sup, HostIP, Port, ?DEFAULT_PROFILE},
+      Daemon, supervisor,
+      [ssh_system_sup]}] = 
+	supervisor:which_children(sshd_sup),
+    check_sshd_system_tree(Daemon, Config),
+    ssh:stop_daemon(HostIP, Port),
+    ct:sleep(?WAIT_FOR_SHUTDOWN),
+    [] = supervisor:which_children(sshd_sup).
+
+sshd_subtree_profile() ->
+    [{doc, "Make sure the sshd subtree using profile option is correct"}].	
+sshd_subtree_profile(Config) when is_list(Config) ->
+    HostIP = ?config(host_ip, Config),
+    Port = ?config(port, Config),
+    Profile = ?config(profile, Config), 
+    SystemDir = ?config(data_dir, Config),
+
+    {ok, _} = ssh:daemon(HostIP, Port, [{system_dir, SystemDir},
+				  {failfun, fun ssh_test_lib:failfun/2},
+				  {user_passwords,
+				   [{?USER, ?PASSWD}]},
+				  {profile, Profile}]),
+    [{{server,ssh_system_sup, HostIP,Port,Profile},
+      Daemon, supervisor,
+      [ssh_system_sup]}] = 
+	supervisor:which_children(sshd_sup),
+    check_sshd_system_tree(Daemon, Config),
+    ssh:stop_daemon(HostIP, Port, Profile),
+    ct:sleep(?WAIT_FOR_SHUTDOWN),
+    [] = supervisor:which_children(sshd_sup).
+
+
+check_sshd_system_tree(Daemon, Config) -> 
+    Host = ?config(host, Config),
+    Port = ?config(port, Config),
+    UserDir = ?config(userdir, Config),
+    {ok, Client} = ssh:connect(Host, Port, [{silently_accept_hosts, true},
+						   {user_interaction, false},
+						   {user, ?USER}, {password, ?PASSWD},{user_dir, UserDir}]),
+    
+    [{_,SubSysSup, supervisor,[ssh_subsystem_sup]},
+     {{ssh_acceptor_sup,_,_,_}, AccSup, supervisor,[ssh_acceptor_sup]}] 
+	= supervisor:which_children(Daemon),
+    
+    [{{server,ssh_connection_sup, _,_},
+      ConnectionSup, supervisor,
+      [ssh_connection_sup]},
+     {{server,ssh_channel_sup,_ ,_},
+      ChannelSup,supervisor,
+      [ssh_channel_sup]}] = supervisor:which_children(SubSysSup),
+    
+    [{{ssh_acceptor_sup,_,_,_},_,worker,[ssh_acceptor]}] = 
+	supervisor:which_children(AccSup),
+    
+    [{_, _, worker,[ssh_connection_handler]}] =
+	supervisor:which_children(ConnectionSup),
+    
+    [] = supervisor:which_children(ChannelSup),
+    
+    ssh_sftp:start_channel(Client),
+
+    [{_, _,worker,[ssh_channel]}] = 
+	supervisor:which_children(ChannelSup),
+    ssh:close(Client).
+  
diff --git a/lib/ssh/test/ssh_sup_SUITE_data/id_dsa b/lib/ssh/test/ssh_sup_SUITE_data/id_dsa
new file mode 100644
index 0000000000..d306f8b26e
--- /dev/null
+++ b/lib/ssh/test/ssh_sup_SUITE_data/id_dsa
@@ -0,0 +1,13 @@
+-----BEGIN DSA PRIVATE KEY-----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+-----END DSA PRIVATE KEY-----
+
diff --git a/lib/ssh/test/ssh_sup_SUITE_data/id_rsa b/lib/ssh/test/ssh_sup_SUITE_data/id_rsa
new file mode 100644
index 0000000000..9d7e0dd5fb
--- /dev/null
+++ b/lib/ssh/test/ssh_sup_SUITE_data/id_rsa
@@ -0,0 +1,15 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIICXAIBAAKBgQD1OET+3O/Bvj/dtjxDTXmj1oiJt4sIph5kGy0RfjoPrZfaS+CU
+DhakCmS6t2ivxWFgtpKWaoGMZMJqWj6F6ZsumyFl3FPBtujwY/35cgifrI9Ns4Tl
+zR1uuengNBmV+WRQ5cd9F2qS6Z8aDQihzt0r8JUqLcK+VQbrmNzboCCQQwIDAQAB
+AoGAPQEyqPTt8JUT7mRXuaacjFXiweAXhp9NEDpyi9eLOjtFe9lElZCrsUOkq47V
+TGUeRKEm9qSodfTbKPoqc8YaBJGJPhUaTAcha+7QcDdfHBvIsgxvU7ePVnlpXRp3
+CCUEMPhlnx6xBoTYP+fRU0e3+xJIPVyVCqX1jAdUMkzfRoECQQD6ux7B1QJAIWyK
+SGkbDUbBilNmzCFNgIpOP6PA+bwfi5d16diTpra5AX09keQABAo/KaP1PdV8Vg0p
+z4P3A7G3AkEA+l+AKG6m0kQTTBMJDqOdVPYwe+5GxunMaqmhokpEbuGsrZBl5Dvd
+WpcBjR7jmenrhKZRIuA+Fz5HPo/UQJPl1QJBAKxstDkeED8j/S2XoFhPKAJ+6t39
+sUVICVTIZQeXdmzHJXCcUSkw8+WEhakqw/3SyW0oaK2FSWQJFWJUZ+8eJj8CQEh3
+xeduB5kKnS9CvzdeghZqX6QvVosSdtlUmfUYW/BgH5PpHKTP8wTaeld3XldZTpMJ
+dKiMkUw2+XYROVUrubUCQD+Na1LhULlpn4ISEtIEfqpdlUhxDgO15Wg8USmsng+x
+ICliVOSQtwaZjm8kwaFt0W7XnpnDxbRs37vIEbIMWak=
+-----END RSA PRIVATE KEY-----
diff --git a/lib/ssh/test/ssh_sup_SUITE_data/ssh_host_dsa_key b/lib/ssh/test/ssh_sup_SUITE_data/ssh_host_dsa_key
new file mode 100644
index 0000000000..51ab6fbd88
--- /dev/null
+++ b/lib/ssh/test/ssh_sup_SUITE_data/ssh_host_dsa_key
@@ -0,0 +1,13 @@
+-----BEGIN DSA PRIVATE KEY-----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+-----END DSA PRIVATE KEY-----
+
diff --git a/lib/ssh/test/ssh_sup_SUITE_data/ssh_host_dsa_key.pub b/lib/ssh/test/ssh_sup_SUITE_data/ssh_host_dsa_key.pub
new file mode 100644
index 0000000000..4dbb1305b0
--- /dev/null
+++ b/lib/ssh/test/ssh_sup_SUITE_data/ssh_host_dsa_key.pub
@@ -0,0 +1,11 @@
+---- BEGIN SSH2 PUBLIC KEY ----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+---- END SSH2 PUBLIC KEY ----
diff --git a/lib/ssh/test/ssh_sup_SUITE_data/ssh_host_rsa_key b/lib/ssh/test/ssh_sup_SUITE_data/ssh_host_rsa_key
new file mode 100644
index 0000000000..79968bdd7d
--- /dev/null
+++ b/lib/ssh/test/ssh_sup_SUITE_data/ssh_host_rsa_key
@@ -0,0 +1,16 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----
+
diff --git a/lib/ssh/test/ssh_sup_SUITE_data/ssh_host_rsa_key.pub b/lib/ssh/test/ssh_sup_SUITE_data/ssh_host_rsa_key.pub
new file mode 100644
index 0000000000..75d2025c71
--- /dev/null
+++ b/lib/ssh/test/ssh_sup_SUITE_data/ssh_host_rsa_key.pub
@@ -0,0 +1,5 @@
+---- BEGIN SSH2 PUBLIC KEY ----
+AAAAB3NzaC1yc2EAAAADAQABAAAAgQDCZX+4FBDwZIh9y/Uxee1VJnEXlowpz2yDKwj8
+semM4q843337zbNfxHmladB1lpz2NqyxI175xMIJuDxogyZdsOxGnFAzAnthR4dqL/RW
+RWzjaxSB6IAO9SPYVVlrpZ+1hsjLW79fwXK/yc8VdhRuWTeQiRgYY2ek8+OKbOqz4Q==
+---- END SSH2 PUBLIC KEY ----
diff --git a/lib/ssh/test/ssh_test_lib.erl b/lib/ssh/test/ssh_test_lib.erl
index b8abf5e80e..d08afdfb90 100644
--- a/lib/ssh/test/ssh_test_lib.erl
+++ b/lib/ssh/test/ssh_test_lib.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2004-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2004-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -358,3 +358,16 @@ do_inet_port(Node) ->
     {ok, Socket} = rpc:call(Node, gen_tcp, listen, [0, [{reuseaddr, true}]]),
     {ok, Port} = rpc:call(Node, inet, port, [Socket]),
     {Port, Socket}.
+
+openssh_sanity_check(Config) ->
+    ssh:start(),
+    case ssh:connect("localhost", 22, [{password,""}]) of
+	{ok, Pid} ->
+	    ssh:close(Pid),
+	    ssh:stop(),
+	    Config;
+	Err ->
+	    Str = lists:append(io_lib:format("~p", [Err])),
+	    ssh:stop(),
+	    {skip, Str}
+    end.
diff --git a/lib/ssh/test/ssh_to_openssh_SUITE.erl b/lib/ssh/test/ssh_to_openssh_SUITE.erl
index af70eeb46c..277e3a1b08 100644
--- a/lib/ssh/test/ssh_to_openssh_SUITE.erl
+++ b/lib/ssh/test/ssh_to_openssh_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2008-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2008-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -60,13 +60,14 @@ groups() ->
     ].
 
 init_per_suite(Config) ->
+    catch crypto:stop(),
     case catch crypto:start() of
 	ok ->
 	    case gen_tcp:connect("localhost", 22, []) of
 		{error,econnrefused} ->
 		    {skip,"No openssh deamon"};
 		_ ->
-		    Config
+		    ssh_test_lib:openssh_sanity_check(Config)
 	    end;
 	_Else ->
 	    {skip,"Could not start crypto!"}
@@ -166,9 +167,11 @@ erlang_client_openssh_server_exec_compressed() ->
     [{doc, "Test that compression option works"}].
 
 erlang_client_openssh_server_exec_compressed(Config) when is_list(Config) ->
+    CompressAlgs = [zlib, '[email protected]',none],
     ConnectionRef = ssh_test_lib:connect(?SSH_DEFAULT_PORT, [{silently_accept_hosts, true},
 							     {user_interaction, false},
-							     {compression, zlib}]),
+							     {preferred_algorithms,
+							      [{compression,CompressAlgs}]}]),
     {ok, ChannelId} = ssh_connection:session_channel(ConnectionRef, infinity),
     success = ssh_connection:exec(ConnectionRef, ChannelId,
 				  "echo testing", infinity),
@@ -326,8 +329,11 @@ erlang_server_openssh_client_exec_compressed(Config) when is_list(Config) ->
     PrivDir = ?config(priv_dir, Config),
     KnownHosts = filename:join(PrivDir, "known_hosts"),
 
+%%    CompressAlgs = [zlib, '[email protected]'], % Does not work
+    CompressAlgs = [zlib],
     {Pid, Host, Port} = ssh_test_lib:daemon([{system_dir, SystemDir},
-					     {compression, zlib},
+					     {preferred_algorithms,
+					      [{compression, CompressAlgs}]},
 					     {failfun, fun ssh_test_lib:failfun/2}]),
 
     ct:sleep(500),
@@ -545,6 +551,7 @@ receive_hej() ->
 receive_logout() ->
     receive
 	<<"logout">> ->
+	    extra_logout(),
 	    receive
 		<<"Connection closed">> ->
 		    ok
@@ -564,6 +571,14 @@ receive_normal_exit(Shell) ->
 	    ct:fail({unexpected_msg, Other})
     end.
 
+extra_logout() ->
+    receive 	
+	<<"logout">> ->
+	    ok
+    after 500 -> 
+	    ok
+    end.
+
 %%--------------------------------------------------------------------
 %%--------------------------------------------------------------------
 %% Check if we have a "newer" ssh client that supports these test cases
diff --git a/lib/ssh/test/ssh_unicode_SUITE.erl b/lib/ssh/test/ssh_unicode_SUITE.erl
index cc916673b3..07d51335c6 100644
--- a/lib/ssh/test/ssh_unicode_SUITE.erl
+++ b/lib/ssh/test/ssh_unicode_SUITE.erl
@@ -55,6 +55,7 @@ all() ->
 
 
 init_per_suite(Config) ->
+    catch crypto:stop(),
     case {file:native_name_encoding(), (catch crypto:start())} of
 	{utf8, ok} ->
 	    ssh:start(),
diff --git a/lib/ssh/vsn.mk b/lib/ssh/vsn.mk
index 9d486f8890..cef9992f1b 100644
--- a/lib/ssh/vsn.mk
+++ b/lib/ssh/vsn.mk
@@ -1,4 +1,4 @@
 #-*-makefile-*-   ; force emacs to enter makefile-mode
 
-SSH_VSN = 3.2.4
+SSH_VSN = 4.0
 APP_VSN    = "ssh-$(SSH_VSN)"
diff --git a/lib/ssl/doc/src/Makefile b/lib/ssl/doc/src/Makefile
index fb12499ef7..143756bd39 100644
--- a/lib/ssl/doc/src/Makefile
+++ b/lib/ssl/doc/src/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 1999-2012. All Rights Reserved.
+# Copyright Ericsson AB 1999-2015. All Rights Reserved.
 #
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
@@ -37,7 +37,7 @@ RELSYSDIR = $(RELEASE_PATH)/lib/$(APPLICATION)-$(VSN)
 # Target Specs
 # ----------------------------------------------------
 XML_APPLICATION_FILES = refman.xml
-XML_REF3_FILES = ssl.xml ssl_session_cache_api.xml
+XML_REF3_FILES = ssl.xml ssl_crl_cache.xml ssl_crl_cache_api.xml ssl_session_cache_api.xml 
 XML_REF6_FILES = ssl_app.xml
 
 XML_PART_FILES = release_notes.xml usersguide.xml
diff --git a/lib/ssl/doc/src/refman.xml b/lib/ssl/doc/src/refman.xml
index ae11198edb..d5f2219af9 100644
--- a/lib/ssl/doc/src/refman.xml
+++ b/lib/ssl/doc/src/refman.xml
@@ -4,7 +4,7 @@
 <application xmlns:xi="http://www.w3.org/2001/XInclude">
   <header>
     <copyright>
-      <year>1999</year><year>2013</year>
+      <year>1999</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -28,23 +28,10 @@
     <rev>B</rev>
     <file>refman.sgml</file>
   </header>
-  <description>
-    <p>The <em>SSL</em> application provides secure communication over
-      sockets.
-      </p>
-    <p>This product includes software developed by the OpenSSL Project for
-      use in the OpenSSL Toolkit (http://www.openssl.org/).
-      </p>
-    <p>This product includes cryptographic software written by Eric Young
-      ([email protected]).  
-      </p>
-    <p>This product includes software written by Tim Hudson
-      ([email protected]).
-      </p>
-    <p>For full OpenSSL and SSLeay license texts, see <seealso marker="licenses#licenses">Licenses</seealso>.</p>
-  </description>
   <xi:include href="ssl_app.xml"/>
   <xi:include href="ssl.xml"/>
+  <xi:include href="ssl_crl_cache.xml"/>
+  <xi:include href="ssl_crl_cache_api.xml"/>
   <xi:include href="ssl_session_cache_api.xml"/>
 </application>
 
diff --git a/lib/ssl/doc/src/ssl.xml b/lib/ssl/doc/src/ssl.xml
index 923ecdd618..9122066787 100644
--- a/lib/ssl/doc/src/ssl.xml
+++ b/lib/ssl/doc/src/ssl.xml
@@ -21,241 +21,280 @@
 
     </legalnotice>
     <title>ssl</title>
+    <prepared></prepared>
+    <docno></docno>
+    <date></date>
+    <rev></rev>
     <file>ssl.xml</file>
   </header>
   <module>ssl</module>
   <modulesummary>Interface Functions for Secure Socket Layer</modulesummary>
   <description>
-    <p>This module contains interface functions to the Secure Socket
-      Layer. 
-    </p>
+    <p>This module contains interface functions for the SSL.</p>
   </description>
   
   <section>
     <title>SSL</title>
 
     <list type="bulleted">
-      <item>ssl requires the crypto and public_key applications.</item>
+      <item>For application dependencies see <seealso marker="ssl_app"> ssl(6)</seealso> </item>
       <item>Supported SSL/TLS-versions are SSL-3.0, TLS-1.0,
-      TLS-1.1 and TLS-1.2.</item>
-      <item>For security reasons sslv2 is not supported.</item>
-      <item>Ephemeral Diffie-Hellman cipher suites are supported
+      TLS-1.1, and TLS-1.2.</item>
+      <item>For security reasons SSL-2.0 is not supported.</item>
+      <item>For security reasons SSL-3.0 is no longer supported by default,
+      but can be configured.</item>
+      <item>Ephemeral Diffie-Hellman cipher suites are supported,
       but not Diffie Hellman Certificates cipher suites.</item>
-      <item>Elliptic Curve cipher suites are supported if crypto
-      supports it and named curves are used.
+      <item>Elliptic Curve cipher suites are supported if the Crypto 
+      application supports it and named curves are used.
       </item>
       <item>Export cipher suites are not supported as the
       U.S. lifted its export restrictions in early 2000.</item>
       <item>IDEA cipher suites are not supported as they have
-      become deprecated by the latest TLS spec so there is not any
-      real motivation to implement them.</item>
-      <item>CRL and policy certificate extensions are not supported
-      yet. However CRL verification is supported by public_key, only not integrated
-      in ssl yet. </item>
-      <item>Support for 'Server Name Indication' extension client side
-      (RFC 6066 section 3).</item>
+      become deprecated by the latest TLS specification so it is not 
+      motivated to implement them.</item>
+      <item>CRL validation is supported.</item>
+      <item>Policy certificate extensions are not supported.</item>
+      <item>'Server Name Indication' extension client side
+      (RFC 6066, Section 3) is supported.</item>
     </list>
  
   </section>
   
   <section>
-    <title>COMMON DATA TYPES</title>
-    <p>The following data types are used in the functions below:
-    </p>
+    <title>DATA TYPES</title>
+    <p>The following data types are used in the functions for SSL:</p>
 
-    <p><c>boolean() = true | false</c></p>
+    <taglist>
 
-    <p><c>option() = socketoption() | ssloption() | transportoption()</c></p>
+      <tag><c>boolean() =</c></tag>
+      <item><p><c>true | false</c></p></item>
 
-     <p><c>socketoption() = proplists:property() - The default socket options are
-      [{mode,list},{packet, 0},{header, 0},{active, true}].
-    </c></p>
+      <tag><c>option() =</c></tag>
+      <item><p><c>socketoption() | ssloption() | transportoption()</c></p>
+      </item>
 
-    <p>For valid options
-      see <seealso marker="kernel:inet">inet(3)</seealso> and
-      <seealso marker="kernel:gen_tcp">gen_tcp(3)</seealso>.
-    </p>
-    
-    <p><marker id="type-ssloption"></marker><c>ssloption() = {verify, verify_type()} |
-      {verify_fun, {fun(), term()}} |
-      {fail_if_no_peer_cert, boolean()}
-      {depth, integer()} |
-      {cert, der_encoded()}| {certfile, path()} |
-      {key, {'RSAPrivateKey'| 'DSAPrivateKey' | 'ECPrivateKey' |'PrivateKeyInfo', der_encoded()}} |
-      {keyfile, path()} | {password, string()} |
-      {cacerts, [der_encoded()]} | {cacertfile, path()} |
-      |{dh, der_encoded()} | {dhfile, path()} | {ciphers, ciphers()} |
-      {user_lookup_fun, {fun(), term()}}, {psk_identity, string()}, {srp_identity, {string(), string()}} |
-      {ssl_imp, ssl_imp()} | {reuse_sessions, boolean()} | {reuse_session, fun()}
-      {next_protocols_advertised, [binary()]} |
-      {client_preferred_next_protocols, {client | server, [binary()]} | {client | server, [binary()], binary()}} |
-      {log_alert, boolean()} | {server_name_indication, hostname() | disable}
-    </c></p>
-
-    <p><c>transportoption() = {cb_info, {CallbackModule::atom(), DataTag::atom(), ClosedTag::atom(), ErrTag:atom()}}
-	- defaults to {gen_tcp, tcp, tcp_closed, tcp_error}. Can be used to customize
-	the transport layer. The callback module must implement a reliable transport
-	protocol and behave as gen_tcp and in addition have functions corresponding to
-	inet:setopts/2, inet:getopts/2, inet:peername/1, inet:sockname/1 and inet:port/1.
-	The callback gen_tcp is treated specially and will call inet directly.
-    </c></p>
-    
-    <p><c>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CallbackModule =
-	atom()</c>
-    </p> <p><c>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; DataTag =
-	atom() - tag used in socket data message.</c></p>
-    <p><c>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ClosedTag = atom() - tag used in
-    socket close message.</c></p>
-
-    <p><c>verify_type() = verify_none | verify_peer</c></p>
-    
-    <p><c>path() = string() - representing a file path.</c></p>
+      <tag><c>socketoption() =</c></tag>
+      <item><p><c>proplists:property()</c></p>
+      <p>The default socket options are
+      <c>[{mode,list},{packet, 0},{header, 0},{active, true}]</c>.</p>
+      <p>For valid options, see the
+      <seealso marker="kernel:inet">inet(3)</seealso> and
+      <seealso marker="kernel:gen_tcp">gen_tcp(3)</seealso> manual pages
+      in Kernel.</p></item>
 
-    <p><c>der_encoded() = binary() -Asn1 DER encoded entity as an erlang binary.</c></p>
-    
-    <p><c>host() = hostname() | ipaddress()</c></p>
-        
-    <p><c>hostname() = string()</c></p>
-    
-    <p><c>
-      ip_address() = {N1,N2,N3,N4}  % IPv4
-      | {K1,K2,K3,K4,K5,K6,K7,K8}  % IPv6    </c></p>
+      <tag><marker id="type-ssloption"></marker><c>ssloption() =</c></tag>
+      <item>
+	<p><c>{verify, verify_type()}</c></p>
+	<p><c>| {verify_fun, {fun(), term()}}</c></p>
+	<p><c>| {fail_if_no_peer_cert, boolean()} {depth, integer()}</c></p>
+	<p><c>| {cert, public_key:der_encoded()}</c></p>
+	<p><c>| {certfile, path()}</c></p>
+	<p><c>| {key, {'RSAPrivateKey'| 'DSAPrivateKey' | 'ECPrivateKey' 
+	| 'PrivateKeyInfo', public_key:der_encoded()}}</c></p>
+	<p><c>| {keyfile, path()}</c></p>
+	<p><c>| {password, string()}</c></p>
+	<p><c>| {cacerts, [public_key:der_encoded()]}</c></p>
+	<p><c>| {cacertfile, path()}</c></p>
+	<p><c>| {dh, public_key:der_encoded()}</c></p>
+	<p><c>| {dhfile, path()}</c></p>
+	<p><c>| {ciphers, ciphers()}</c></p>
+	<p><c>| {user_lookup_fun, {fun(), term()}}, {psk_identity, string()},
+	{srp_identity, {string(), string()}}</c></p>
+	<p><c>| {reuse_sessions, boolean()}</c></p>
+	<p><c>| {reuse_session, fun()} {next_protocols_advertised, [binary()]}</c></p>
+	<p><c>| {client_preferred_next_protocols, {client | server,
+	[binary()]} | {client | server, [binary()], binary()}}</c></p>
+	<p><c>| {log_alert, boolean()}</c></p>
+	<p><c>| {server_name_indication, hostname() | disable}</c></p>
+	<p><c>| {sni_hosts, [{hostname(), ssloptions()}]}</c></p>
+	<p><c>| {sni_fun, SNIfun::fun()}</c></p>
+      </item>
+      
+      <tag><c>transportoption() =</c></tag>
+      <item><p><c>{cb_info, {CallbackModule::atom(), DataTag::atom(),
+
+      ClosedTag::atom(), ErrTag:atom()}}</c></p>
+      <p>Defaults to <c>{gen_tcp, tcp, tcp_closed, tcp_error}</c>. Can be used
+      to customize the transport layer. The callback module must implement a
+      reliable transport protocol, behave as <c>gen_tcp</c>, and have functions
+      corresponding to <c>inet:setopts/2</c>, <c>inet:getopts/2</c>,
+      <c>inet:peername/1</c>, <c>inet:sockname/1</c>, and <c>inet:port/1</c>.
+      The callback <c>gen_tcp</c> is treated specially and calls <c>inet</c>
+      directly.</p>
+      <taglist>
+	<tag><c>CallbackModule =</c></tag>
+	<item><p><c>atom()</c></p></item>
+	<tag><c>DataTag =</c></tag>
+	<item><p><c>atom()</c></p>
+	<p>Used in socket data message.</p></item>
+	<tag><c>ClosedTag =</c></tag>
+	<item><p><c>atom()</c></p>
+	<p>Used in socket close message.</p></item>
+      </taglist>
+      </item>
 
-    <p><c>sslsocket() - opaque to the user. </c></p>
-    
-    <p><c>protocol() = sslv3 | tlsv1 | 'tlsv1.1' | 'tlsv1.2' </c></p>
-    
-    <p><c>ciphers() = [ciphersuite()] | string() (according to old API)</c></p>
-    
-    <p><c>ciphersuite() =
-      {key_exchange(), cipher(), hash()}</c></p>
-    
-    <p><c>key_exchange() =  rsa | dhe_dss | dhe_rsa | dh_anon
-       | psk | dhe_psk | rsa_psk | srp_anon | srp_dss | srp_rsa
-       | ecdh_anon | ecdh_ecdsa | ecdhe_ecdsa | ecdh_rsa | ecdhe_rsa
-    </c></p>
+      <tag><c>verify_type() =</c></tag>
+      <item><p><c>verify_none | verify_peer</c></p></item>
+
+      <tag><c>path() =</c></tag>
+      <item><p><c>string()</c></p>
+      <p>Represents a file path.</p></item>
+
+      <tag><c>public_key:der_encoded() =</c></tag>
+      <item><p><c>binary()</c></p>
+      <p>ASN.1 DER-encoded entity as an Erlang binary.</p></item>
+
+      <tag><c>host() =</c></tag>
+      <item><p><c>hostname() | ipaddress()</c></p></item>
+
+      <tag><c>hostname() =</c></tag>
+      <item><p><c>string()</c></p></item>
 
-   <p><c>cipher() = rc4_128 | des_cbc | '3des_ede_cbc'
-      | aes_128_cbc | aes_256_cbc </c></p>
+      <tag><c>ip_address() =</c></tag>
+      <item><p><c>{N1,N2,N3,N4} % IPv4 | {K1,K2,K3,K4,K5,K6,K7,K8} % IPv6
+      </c></p></item>
 
-   <p> <c>hash() = md5 | sha
-    </c></p>
+      <tag><c>sslsocket() =</c></tag>
+      <item><p>opaque()</p></item>
 
-    <p><c>prf_random() =  client_random | server_random
-    </c></p>
+      <tag><c>protocol() =</c></tag>
+      <item><p><c>sslv3 | tlsv1 | 'tlsv1.1' | 'tlsv1.2'</c></p></item>
 
-   <p><c>srp_param_type() = srp_1024 | srp_1536 | srp_2048 | srp_3072
-      | srp_4096 | srp_6144 | srp_8192</c></p>
+      <tag><c>ciphers() =</c></tag>
+      <item><p><c>= [ciphersuite()] | string()</c></p>
+      <p>According to old API.</p></item>
 
+      <tag><c>ciphersuite() =</c></tag>
+      <item><p><c>{key_exchange(), cipher(), hash()}</c></p></item>
+
+      <tag><c>key_exchange()=</c></tag>
+      <item><p><c>rsa | dhe_dss | dhe_rsa | dh_anon | psk | dhe_psk
+      | rsa_psk | srp_anon | srp_dss | srp_rsa | ecdh_anon | ecdh_ecdsa
+      | ecdhe_ecdsa | ecdh_rsa | ecdhe_rsa</c></p></item>
+
+      <tag><c>cipher() =</c></tag>
+      <item><p><c>rc4_128 | des_cbc | '3des_ede_cbc'
+      | aes_128_cbc | aes_256_cbc | aes_128_gcm | aes_256_gcm</c></p></item>
+
+      <tag><c>hash() =</c></tag>
+      <item><p><c>md5 | sha</c></p></item>
+
+      <tag><c>prf_random() =</c></tag>
+      <item><p><c>client_random | server_random</c></p></item>
+
+      <tag><c>srp_param_type() =</c></tag>
+      <item><p><c>srp_1024 | srp_1536 | srp_2048 | srp_3072
+      | srp_4096 | srp_6144 | srp_8192</c></p></item>
+
+      <tag><c>SNIfun::fun()</c></tag>
+      <item><p><c>= fun(ServerName :: string()) -> ssloptions()</c></p></item>
+
+    </taglist>
   </section>
 
   <section>
     <title>SSL OPTION DESCRIPTIONS - COMMON for SERVER and CLIENT</title>
 
-    <p>Options described here are options that are have the same
-    meaning in the client and the server.
-    </p>
+    <p>The following options have the same meaning in the client and 
+    the server:</p>
     
     <taglist>
 
-      <tag>{cert, der_encoded()}</tag>
-      <item> The DER encoded users certificate. If this option
-      is supplied it will override the certfile option.</item>
+      <tag><c>{cert, public_key:der_encoded()}</c></tag>
+      <item><p>The DER-encoded users certificate. If this option
+      is supplied, it overrides option <c>certfile</c>.</p></item>
       
-      <tag>{certfile, path()}</tag>
-      <item>Path to a file containing the user's PEM encoded certificate.</item>
+      <tag><c>{certfile, path()}</c></tag>
+      <item><p>Path to a file containing the user certificate.</p></item>
       
-      <tag>{key, {'RSAPrivateKey'| 'DSAPrivateKey' | 'ECPrivateKey' |'PrivateKeyInfo', der_encoded()}}</tag>
-      <item> The DER encoded users private key. If this option
-      is supplied it will override the keyfile option.</item>
+      <tag><c>{key, {'RSAPrivateKey'| 'DSAPrivateKey' | 'ECPrivateKey'
+      |'PrivateKeyInfo', public_key:der_encoded()}}</c></tag>
+      <item><p>The DER-encoded user's private key. If this option 
+      is supplied, it overrides option <c>keyfile</c>.</p></item>
       
-      <tag>{keyfile, path()}</tag>
-      <item>Path to file containing user's
-      private PEM encoded key. As PEM-files may contain several
-      entries this option defaults to the same file as given by
-      certfile option.</item>
-
-      <tag>{password, string()}</tag>
-      <item>String containing the user's password.
-	Only used if the private keyfile is password protected.
-      </item>
-
-      <tag>{cacerts, [der_encoded()]}</tag>
-      <item> The DER encoded trusted certificates. If this option
-      is supplied it will override the cacertfile option.</item>
-
-      <tag>{ciphers, ciphers()}</tag>
-      <item>The cipher suites that should be supported. The function
+      <tag><c>{keyfile, path()}</c></tag>
+      <item><p>Path to the file containing the user's
+      private PEM-encoded key. As PEM-files can contain several
+      entries, this option defaults to the same file as given by
+      option <c>certfile</c>.</p></item>
+
+      <tag><c>{password, string()}</c></tag>
+      <item><p>String containing the user's password. Only used if the 
+      private keyfile is password-protected.</p></item>
+
+      <tag><c>{ciphers, ciphers()}</c></tag>
+      <item><p>Supported cipher suites. The function
       <c>cipher_suites/0</c> can be used to find all ciphers that are
-      supported by default.  <c>cipher_suites(all)</c> may be called
-      to find all available cipher suites.   
-      Pre-Shared Key (<url href="http://www.ietf.org/rfc/rfc4279.txt">RFC 4279</url> and
+      supported by default. <c>cipher_suites(all)</c> can be called
+      to find all available cipher suites. Pre-Shared Key 
+      (<url href="http://www.ietf.org/rfc/rfc4279.txt">RFC 4279</url> and
       <url href="http://www.ietf.org/rfc/rfc5487.txt">RFC 5487</url>), 
-      Secure Remote Password (<url href="http://www.ietf.org/rfc/rfc5054.txt">RFC 5054</url>) 
+      Secure Remote Password 
+      (<url href="http://www.ietf.org/rfc/rfc5054.txt">RFC 5054</url>), RC4 cipher suites,
       and anonymous cipher suites only work if explicitly enabled by
-      this option and they are supported/enabled by the peer also.
-      Note that anonymous cipher suites are supported for testing purposes
-      only and should not be used when security matters.
+      this option; they are supported/enabled by the peer also.
+      Anonymous cipher suites are supported for testing purposes
+      only and are not be used when security matters.</p></item>
+
+      <tag><c>{secure_renegotiate, boolean()}</c></tag>
+      <item><p>Specifies if to reject renegotiation attempt that does
+      not live up to 
+      <url href="http://www.ietf.org/rfc/rfc5746.txt">RFC 5746</url>. 
+      By default <c>secure_renegotiate</c> is set to <c>false</c>, 
+      that is, secure renegotiation is used if possible,
+      but it fallback to unsecure renegotiation if the peer
+      does not support 
+      <url href="http://www.ietf.org/rfc/rfc5746.txt">RFC 5746</url>.</p>
       </item>
 
-      <tag>{ssl_imp, new | old}</tag>
-      <item>No longer has any meaning as the old implementation has
-      been removed, it will be ignored.
-      </item>
-
-      <tag>{secure_renegotiate, boolean()}</tag>
-      <item>Specifies if to reject renegotiation attempt that does
-      not live up to <url href="http://www.ietf.org/rfc/rfc5746.txt">RFC 5746</url>. By default secure_renegotiate is
-      set to false i.e. secure renegotiation will be used if possible
-      but it will fallback to unsecure renegotiation if the peer
-      does not support <url href="http://www.ietf.org/rfc/rfc5746.txt">RFC 5746</url>.
-      </item>
-
-      <tag>{depth, integer()}</tag>
-      <item>
-	The depth is the maximum number of non-self-issued
-	intermediate certificates that may follow the peer certificate
-	in a valid certification path.  So if depth is 0 the PEER must
-	be signed by the trusted ROOT-CA directly, if 1 the path can
-	be PEER, CA, ROOT-CA, if it is 2 PEER, CA, CA, ROOT-CA and so
-	on.  The default value is 1.
-      </item>
+      <tag><c>{depth, integer()}</c></tag>
+      <item><p>Maximum number of non-self-issued
+      intermediate certificates that can follow the peer certificate 
+      in a valid certification path. So, if depth is 0 the PEER must 
+      be signed by the trusted ROOT-CA directly; if 1 the path can 
+      be PEER, CA, ROOT-CA; if 2 the path can be PEER, CA, CA, 
+      ROOT-CA, and so on. The default value is 1.</p></item>
 
-      <tag>{verify_fun, {Verifyfun :: fun(), InitialUserState :: term()}}</tag>
-      <item>
-	<p>The verification fun should be defined as:</p>
+      <tag><c>{verify_fun, {Verifyfun :: fun(), InitialUserState ::
+      term()}}</c></tag>
+      <item><p>The verification fun is to be defined as follows:</p>
 
 	<code>
-fun(OtpCert :: #'OTPCertificate'{}, Event :: {bad_cert, Reason :: atom() | {revoked, atom()}} |
+fun(OtpCert :: #'OTPCertificate'{}, Event :: {bad_cert, Reason :: atom() | {revoked,
+atom()}} |
 	     {extension, #'Extension'{}}, InitialUserState :: term()) ->
 	{valid, UserState :: term()} | {valid_peer, UserState :: term()} |
 	{fail, Reason :: term()} | {unknown, UserState :: term()}.
 	</code>
 
-	<p>The verify fun will be called during the X509-path
-	validation when an error or an extension unknown to the ssl
-	application is encountered. Additionally it will be called
+	<p>The verification fun is called during the X509-path
+	validation when an error or an extension unknown to the SSL
+	application is encountered. It is also called
 	when a certificate is considered valid by the path validation
 	to allow access to each certificate in the path to the user
-	application. Note that it will differentiate between the
-	peer certificate and CA certificates by using valid_peer or
-	valid as the second argument to the verify fun.  See <seealso
-	marker="public_key:cert_records">the public_key User's
-	Guide</seealso> for definition of #'OTPCertificate'{} and
-	#'Extension'{}.</p>
-
-	<p>If the verify callback fun returns {fail, Reason}, the
-	verification process is immediately stopped and an alert is
-	sent to the peer and the TLS/SSL handshake is terminated. If
-	the verify callback fun returns {valid, UserState}, the
-	verification process is continued.  If the verify callback fun
-	always returns {valid, UserState}, the TLS/SSL handshake will
-	not be terminated with respect to verification failures and
-	the connection will be established. If called with an
-	extension unknown to the user application, the return value
-	{unknown, UserState} should be used.</p>
-
-	<p>The default verify_fun option in verify_peer mode:</p>
+	application. It differentiates between the peer
+	certificate and the CA certificates by using <c>valid_peer</c> or
+	<c>valid</c> as second argument to the verification fun. See the
+	<seealso marker="public_key:public_key_records">public_key User's
+	Guide</seealso> for definition of <c>#'OTPCertificate'{}</c> and
+	<c>#'Extension'{}</c>.</p>
+
+	<list type="bulleted">
+	  <item><p>If the verify callback fun returns <c>{fail, Reason}</c>,
+	  the verification process is immediately stopped, an alert is
+	  sent to the peer, and the TLS/SSL handshake terminates.</p></item>
+	  <item><p>If the verify callback fun returns <c>{valid, UserState}</c>,
+	  the verification process continues.</p></item> 
+	  <item><p>If the verify callback fun always returns
+	  <c>{valid, UserState}</c>, the TLS/SSL handshake does not
+	  terminate regarding verification failures and the connection is
+	  established.</p></item>
+	  <item><p>If called with an extension unknown to the user application,
+	  return value <c>{unknown, UserState}</c> is to be used.</p></item>
+	</list>
+
+	<p>Default option <c>verify_fun</c> in <c>verify_peer mode</c>:</p>
 
       <code>
 {fun(_,{bad_cert, _} = Reason, _) ->
@@ -269,7 +308,7 @@ fun(OtpCert :: #'OTPCertificate'{}, Event :: {bad_cert, Reason :: atom() | {revo
  end, []}
       </code>
 
-      <p>The default verify_fun option in verify_none mode:</p>
+      <p>Default option <c>verify_fun</c> in mode <c>verify_none</c>:</p>
 
        <code>
 {fun(_,{bad_cert, _}, UserState) ->
@@ -283,49 +322,88 @@ fun(OtpCert :: #'OTPCertificate'{}, Event :: {bad_cert, Reason :: atom() | {revo
  end, []}
       </code>
 
-      <p>Possible path validation errors are given on the form {bad_cert, Reason} where Reason is:</p>
+      <p>The possible path validation errors are given on form
+      <c>{bad_cert, Reason}</c> where <c>Reason</c> is:</p>
 
       <taglist>
-	<tag>unknown_ca</tag>
-	<item>No trusted CA was found in the trusted store. The trusted CA is
-	normally a so called ROOT CA that is a self-signed cert. Trust may
-	be claimed for an intermediat CA (trusted anchor does not have to be self signed
-	according to X-509) by using the option <c>partial_chain</c></item>
-
-	<tag>selfsigned_peer</tag>
-	<item>The chain consisted only of one self-signed certificate.</item>
-
-	<tag>PKIX X-509-path validation error</tag>
-	<item> Possible such reasons see <seealso
-	marker="public_key:public_key#pkix_path_validation-3"> public_key:pkix_path_validation/3 </seealso></item>
+	<tag><c>unknown_ca</c></tag>
+	<item><p>No trusted CA was found in the trusted store. The trusted CA is
+	normally a so called ROOT CA, which is a self-signed certificate. Trust can
+	be claimed for an intermediat CA (trusted anchor does not have to be
+	self-signed according to X-509) by using option <c>partial_chain</c>.</p>
+	</item>
+
+	<tag><c>selfsigned_peer</c></tag>
+	<item><p>The chain consisted only of one self-signed certificate.</p></item>
+
+	<tag><c>PKIX X-509-path validation error</c></tag>
+	<item><p>For possible reasons, see <seealso
+marker="public_key:public_key#pkix_path_validation-3">public_key:pkix_path_validation/3</seealso>
+	</p></item>
       </taglist>
-
       </item>
 
-      <tag>{partial_chain, fun(Chain::[DerCert]) -> {trusted_ca, DerCert} | unknown_ca </tag>
+      <tag><c>{crl_check, boolean() | peer | best_effort }</c></tag>
       <item>
-	Claim an intermediat CA in the chain as trusted. TLS will then perform the public_key:pkix_path_validation/3
-	with the selected CA as trusted anchor and the rest of the chain.
-      </item>
+	Perform CRL (Certificate Revocation List) verification
+	<seealso marker="public_key:public_key#pkix_crls_validate-3">
+	(public_key:pkix_crls_validate/3)</seealso> on all the certificates during the path validation
+	<seealso
+	    marker="public_key:public_key#pkix_path_validation-3">(public_key:pkix_path_validation/3)
+	</seealso>
+	of the certificate chain. Defaults to false.
+	
+	<p><c>peer</c> - check is only performed on
+	the peer certificate.</p>
 
-      <tag>{versions, [protocol()]}</tag>
-      <item>TLS protocol versions that will be supported by started clients and servers.
-      This option overrides the application environment option <c>protocol_version</c>. If the
-      environment option is not set it defaults to all versions supported by the SSL application. See also
-      <seealso marker="ssl:ssl_app">ssl(6)</seealso>
-      </item>
+	<p><c>best_effort</c> - if certificate revocation status can not be determined
+	it will be accepted as valid.</p>
 
-      <tag>{hibernate_after, integer()|undefined}</tag>
-      <item>When an integer-value is specified, the <c>ssl_connection</c>
-            will go into hibernation after the specified number of milliseconds
-            of inactivity, thus reducing its memory footprint. When
-            <c>undefined</c> is specified (this is the default), the process
-            will never go into hibernation.
+	<p>The CA certificates specified for the connection will be used to 
+	construct the certificate chain validating the CRLs.</p>
+ 	
+	<p>The CRLs will be fetched from a local or external cache see
+	<seealso marker="ssl:ssl_crl_cache_api">ssl_crl_cache_api(3)</seealso>.</p>
       </item>
 
-      <tag>{user_lookup_fun, {Lookupfun :: fun(), UserState :: term()}}</tag>
+      <tag><c>{crl_cache, {Module :: atom(), {DbHandle :: internal | term(), Args :: list()}}}</c></tag>
       <item>
-	<p>The lookup fun should be defined as:</p>
+	<p>Module defaults to ssl_crl_cache with <c> DbHandle </c> internal and an
+	empty argument list. The following arguments may be specified for the internal cache.</p>
+	<taglist>
+	  <tag><c>{http, timeout()}</c></tag>
+	  <item><p>
+	    Enables fetching of CRLs specified as http URIs in<seealso 
+	    marker="public_key:public_key_records"> X509 cerificate extensions.</seealso>
+	    Requires the OTP inets application.</p>
+	  </item>	    
+	</taglist>    
+      </item>
+
+      <tag><c>{partial_chain, fun(Chain::[DerCert]) -> {trusted_ca, DerCert} |
+      unknown_ca }</c></tag>
+      <item><p>Claim an intermediate CA in the chain as trusted. TLS then
+      performs <seealso
+      marker="public_key:public_key#pkix_path_validation-3">public_key:pkix_path_validation/3</seealso>
+      with the selected CA as trusted anchor and the rest of the chain.</p></item>
+
+      <tag><c>{versions, [protocol()]}</c></tag>
+      <item><p>TLS protocol versions supported by started clients and servers.
+      This option overrides the application environment option
+      <c>protocol_version</c>. If the environment option is not set, it defaults
+      to all versions, except SSL-3.0, supported by the SSL application.
+      See also <seealso marker="ssl:ssl_app">ssl(6).</seealso></p></item>
+
+      <tag><c>{hibernate_after, integer()|undefined}</c></tag>
+      <item><p>When an integer-value is specified, <c>ssl_connection</c>
+      goes into hibernation after the specified number of milliseconds
+      of inactivity, thus reducing its memory footprint. When
+      <c>undefined</c> is specified (this is the default), the process
+      never goes into hibernation.</p></item>
+
+      <tag><c>{user_lookup_fun, {Lookupfun :: fun(), UserState :: term()}}</c></tag>
+      <item><p>The lookup fun is to defined as follows:</p>
+
 	<code>
 fun(psk, PSKIdentity ::string(), UserState :: term()) ->
 	{ok, SharedSecret :: binary()} | error;
@@ -333,104 +411,121 @@ fun(srp, Username :: string(), UserState :: term()) ->
 	{ok, {SRPParams :: srp_param_type(), Salt :: binary(), DerivedKey :: binary()}} | error.
 	</code>
 
-	<p>For Pre-Shared Key (PSK) cipher suites, the lookup fun will
-	be called by the client and server to determine the shared
-	secret. When called by the client, PSKIdentity will be set to the
-	hint presented by the server or undefined. When called by the
-	server, PSKIdentity is the identity presented by the client.
-	</p>
-
-	<p>For Secure Remote Password (SRP), the fun will only be used by the server to obtain
-	parameters that it will use to generate its session keys. <c>DerivedKey</c> should be 
-	derived according to <url href="http://tools.ietf.org/html/rfc2945#section-3"> RFC 2945</url> and
-	 <url href="http://tools.ietf.org/html/rfc5054#section-2.4"> RFC 5054</url>:
-	<c>crypto:sha([Salt, crypto:sha([Username, &lt;&lt;$:&gt;&gt;, Password])]) </c>
+	<p>For Pre-Shared Key (PSK) cipher suites, the lookup fun is
+	called by the client and server to determine the shared
+	secret. When called by the client, <c>PSKIdentity</c> is set to the
+	hint presented by the server or to undefined. When called by the
+	server, <c>PSKIdentity</c> is the identity presented by the client.</p>
+
+	<p>For Secure Remote Password (SRP), the fun is only used by the server to
+	obtain parameters that it uses to generate its session keys.
+	<c>DerivedKey</c> is to be derived according to
+	<url href="http://tools.ietf.org/html/rfc2945#section-3"> RFC 2945</url> and
+	<url href="http://tools.ietf.org/html/rfc5054#section-2.4"> RFC 5054</url>:
+	<c>crypto:sha([Salt, crypto:sha([Username, &lt;&lt;$:&gt;&gt;, Password])])</c>
 	</p>
       </item>
 
-      <tag>{padding_check, boolean()}</tag>
-      <item>
-	<p> This option only affects TLS-1.0 connections.
-	If set to false it disables the block cipher padding check
-	to be able to interoperate with legacy software.
-	</p>
-	
-	<warning><p> Using this option makes TLS vulnerable to
-	the Poodle attack</p></warning>
-	
-      </item>
-      
+      <tag><c>{padding_check, boolean()}</c></tag>
+      <item><p>Affects TLS-1.0 connections only.
+      If set to <c>false</c>, it disables the block cipher padding check
+      to be able to interoperate with legacy software.</p></item>
+
     </taglist>
-    
+
+        <warning><p>Using <c>{padding_check, boolean()}</c> makes TLS
+	vulnerable to the Poodle attack.</p></warning>
+
   </section>
   
   <section>
     <title>SSL OPTION DESCRIPTIONS - CLIENT SIDE</title>
 
-    <p>Options described here are client specific or has a slightly different
-    meaning in the client than in the server.</p>
+    <p>The following options are client-specific or have a slightly different
+    meaning in the client than in the server:</p>
 
     <taglist>
-      <tag>{verify, verify_type()}</tag>
-      <item> In verify_none mode the default behavior will be to
-      allow all x509-path validation errors. See also the verify_fun
-      option.
-      </item>
-      <tag>{reuse_sessions, boolean()}</tag>
-      <item>Specifies if client should try to reuse sessions
-      when possible.
+
+      <tag><c>{verify, verify_type()}</c></tag>
+      <item><p>In mode <c>verify_none</c> the default behavior is to allow
+      all x509-path validation errors. See also option <c>verify_fun</c>.</p>
       </item>
+
+      <tag><c>{reuse_sessions, boolean()}</c></tag>
+      <item><p>Specifies if the client is to try to reuse sessions
+      when possible.</p></item>
+
+      <tag><c>{cacerts, [public_key:der_encoded()]}</c></tag>
+      <item><p>The DER-encoded trusted certificates. If this option
+      is supplied it overrides option <c>cacertfile</c>.</p></item>
       
-      <tag>{cacertfile, path()}</tag>
-      <item>The path to a file containing PEM encoded CA certificates. The CA 
+      <tag><c>{cacertfile, path()}</c></tag>
+      <item><p>Path to a file containing PEM-encoded CA certificates. The CA
       certificates are used during server authentication and when building the
-      client certificate chain.
-     </item>
-  
-      <tag>{client_preferred_next_protocols, {Precedence :: server | client, ClientPrefs :: [binary()]}}</tag>
-      <tag>{client_preferred_next_protocols, {Precedence :: server | client, ClientPrefs :: [binary()], Default :: binary()}}</tag>
+      client certificate chain.</p>
+    </item>
+
+      <tag><c>{alpn_advertised_protocols, [binary()]}</c></tag>
+      <item>
+      <p>The list of protocols supported by the client to be sent to the
+      server to be used for an Application-Layer Protocol Negotiation (ALPN).
+      If the server supports ALPN then it will choose a protocol from this
+      list; otherwise it will fail the connection with a "no_application_protocol"
+      alert. A server that does not support ALPN will ignore this value.</p>
+
+      <p>The list of protocols must not contain an empty binary.</p>
+
+      <p>The negotiated protocol can be retrieved using the <c>negotiated_protocol/1</c> function.</p>
+      </item>
+
+      <tag><c>{client_preferred_next_protocols, {Precedence :: server | client, ClientPrefs :: [binary()]}}</c></tag>
+      <tag><c>{client_preferred_next_protocols, {Precedence :: server | client, ClientPrefs :: [binary()], Default :: binary()}}</c></tag>
 	   <item>
-	   <p>Indicates the client will try to perform Next Protocol
+	   <p>Indicates that the client is to try to perform Next Protocol
 	   Negotiation.</p>
 
-	   <p>If precedence is server the negotiated protocol will be the
-	   first protocol that appears on the server advertised list that is
+	   <p>If precedence is server, the negotiated protocol is the
+	   first protocol to be shown on the server advertised list, which is
 	   also on the client preference list.</p>
 
-	   <p>If precedence is client the negotiated protocol will be the
-	   first protocol that appears on the client preference list that is
+	   <p>If precedence is client, the negotiated protocol is the
+	   first protocol to be shown on the client preference list, which is
 	   also on the server advertised list.</p>
 
 	   <p>If the client does not support any of the server advertised
-	   protocols or the server does not advertise any protocols the
-	   client will fallback to the first protocol in its list or if a
-	   default is supplied it will fallback to that instead. If the
-	   server does not support Next Protocol Negotiation the
-	   connection will be aborted if no default protocol is supplied.</p>
+	   protocols or the server does not advertise any protocols, the
+	   client falls back to the first protocol in its list or to the
+	   default protocol (if a default is supplied). If the
+	   server does not support Next Protocol Negotiation, the
+	   connection terminates if no default protocol is supplied.</p>
 	   </item>
 
-      <tag>{psk_identity, string()}</tag>
-      <item>Specifies the identity the client presents to the server. The matching secret is
-      found by calling the user_look_fun.
+      <tag><c>{psk_identity, string()}</c></tag>
+      <item><p>Specifies the identity the client presents to the server.
+      The matching secret is found by calling <c>user_lookup_fun</c>.</p>
       </item>
-      <tag>{srp_identity, {Username :: string(), Password :: string()}</tag>
-      <item>Specifies the Username and Password to use to authenticate to the server.
-      </item>
-      <tag>{server_name_indication, hostname()}</tag>
-      <tag>{server_name_indication, disable}</tag>
+
+      <tag><c>{srp_identity, {Username :: string(), Password :: string()}
+      </c></tag>
+      <item><p>Specifies the username and password to use to authenticate
+      to the server.</p></item>
+
+      <tag><c>{server_name_indication, hostname()}</c></tag>
+      <item><p>Can be specified when upgrading a TCP socket to a TLS
+        socket to use the TLS Server Name Indication extension.</p></item>
+
+	<tag><c>{server_name_indication, disable}</c></tag>
       <item>
-        <p>This option can be specified when upgrading a TCP socket to a TLS
-        socket to use the TLS Server Name Indication extension.</p>
-        <p>When starting a TLS connection without upgrade the Server Name
-        Indication extension will be sent if possible, this option may also be
+        <p>When starting a TLS connection without upgrade, the Server Name
+        Indication extension is sent if possible. This option can be
         used to disable that behavior.</p>
       </item>
-      <tag>{fallback, boolean()}</tag>
+      <tag><c>{fallback, boolean()}</c></tag>
       <item>
 	<p> Send special cipher suite TLS_FALLBACK_SCSV to avoid undesired TLS version downgrade.
 	Defaults to false</p>
 	<warning><p>Note this option is not needed in normal TLS usage and should not be used
-	to implement new clients. But legacy clients that that retries connections in the following manner</p>
+	to implement new clients. But legacy clients that retries connections in the following manner</p>
 
 	<p><c> ssl:connect(Host, Port, [...{versions, ['tlsv2', 'tlsv1.1', 'tlsv1', 'sslv3']}])</c></p>
 	<p><c>  ssl:connect(Host, Port, [...{versions, [tlsv1.1', 'tlsv1', 'sslv3']}, {fallback, true}])</c></p>
@@ -448,73 +543,114 @@ fun(srp, Username :: string(), UserState :: term()) ->
   <section>
     <title>SSL OPTION DESCRIPTIONS - SERVER SIDE</title>
 
-    <p>Options described here are server specific or has a slightly different
-    meaning in the server than in the client.</p>
+    <p>The following options are server-specific or have a slightly different
+    meaning in the server than in the client:</p>
 
     <taglist>
+
+      <tag><c>{cacerts, [public_key:der_encoded()]}</c></tag>
+      <item><p>The DER-encoded trusted certificates. If this option
+      is supplied it overrides option <c>cacertfile</c>.</p></item>
       
-      <tag>{cacertfile, path()}</tag>
-      <item>The path to a file containing PEM encoded CA
+      <tag><c>{cacertfile, path()}</c></tag>
+      <item><p>Path to a file containing PEM-encoded CA
       certificates. The CA certificates are used to build the server
-      certificate chain, and for client authentication.  Also the CAs
-      are used in the list of acceptable client CAs passed to the
-      client when a certificate is requested. May be omitted if there
-      is no need to verify the client and if there are not any
-      intermediate CAs for the server certificate.
-      </item>
+      certificate chain and for client authentication. The CAs are
+      also used in the list of acceptable client CAs passed to the
+      client when a certificate is requested. Can be omitted if there
+      is no need to verify the client and if there are no
+      intermediate CAs for the server certificate.</p></item>
   
-      <tag>{dh, der_encoded()}</tag>
-      <item>The DER encoded Diffie Hellman parameters. If this option
-      is supplied it will override the dhfile option.
+      <tag><c>{dh, public_key:der_encoded()}</c></tag>
+      <item><p>The DER-encoded Diffie-Hellman parameters. If specified,
+      it overrides option <c>dhfile</c>.</p></item>
+
+      <tag><c>{dhfile, path()}</c></tag>
+      <item><p>Path to a file containing PEM-encoded Diffie Hellman parameters
+      to be used by the server if a cipher suite using Diffie Hellman key
+      exchange is negotiated. If not specified, default parameters are used.
+      </p></item>
+
+      <tag><c>{verify, verify_type()}</c></tag>
+      <item><p>A server only does x509-path validation in mode <c>verify_peer</c>,
+      as it then sends a certificate request to the client
+      (this message is not sent if the verify option is <c>verify_none</c>).
+      You can then also want to specify option <c>fail_if_no_peer_cert</c>.
+      </p></item>
+
+      <tag><c>{fail_if_no_peer_cert, boolean()}</c></tag>
+      <item><p>Used together with <c>{verify, verify_peer}</c> by an SSL server.
+      If set to <c>true</c>, the server fails if the client does not have
+      a certificate to send, that is, sends an empty certificate. If set to
+      <c>false</c>, it fails only if the client sends an invalid
+      certificate (an empty certificate is considered valid). Defaults to false.</p>
       </item>
 
-      <tag>{dhfile, path()}</tag>
-      <item>Path to file containing PEM encoded Diffie Hellman parameters,
-      for the server to use if a cipher suite using Diffie Hellman key exchange
-      is negotiated. If not specified default parameters will be used.
-      </item>
+      <tag><c>{reuse_sessions, boolean()}</c></tag>
+      <item><p>Specifies if the server is to agree to reuse sessions
+      when requested by the clients. See also option <c>reuse_session</c>.
+      </p></item>
+
+      <tag><c>{reuse_session, fun(SuggestedSessionId,
+      PeerCert, Compression, CipherSuite) -> boolean()}</c></tag>
+      <item><p>Enables the SSL server to have a local policy
+      for deciding if a session is to be reused or not.
+      Meaningful only if <c>reuse_sessions</c> is set to <c>true</c>.
+      <c>SuggestedSessionId</c> is a <c>binary()</c>, <c>PeerCert</c> is
+      a DER-encoded certificate, <c>Compression</c> is an enumeration integer,
+      and <c>CipherSuite</c> is of type <c>ciphersuite()</c>.</p></item>
+
+      <tag><c>{alpn_preferred_protocols, [binary()]}</c></tag>
+      <item>
+      <p>Indicates the server will try to perform Application-Layer
+      Protocol Negotiation (ALPN).</p>
 
-      <tag>{verify, verify_type()}</tag>
-      <item>Servers only do the x509-path validation in verify_peer
-      mode, as it then will send a certificate request to the client
-      (this message is not sent if the verify option is verify_none)
-      and you may then also want to specify the option
-      fail_if_no_peer_cert.
-      </item>
+      <p>The list of protocols is in order of preference. The protocol
+      negotiated will be the first in the list that matches one of the
+      protocols advertised by the client. If no protocol matches, the
+      server will fail the connection with a "no_application_protocol" alert.</p>
 
-      <tag>{fail_if_no_peer_cert, boolean()}</tag>
-      <item>Used together with {verify, verify_peer} by an ssl server.
-      If set to true, the server will fail if the client does not have
-      a certificate to send, i.e. sends a empty certificate, if set to
-      false it will only fail if the client sends an invalid
-      certificate (an empty certificate is considered valid).
+      <p>The negotiated protocol can be retrieved using the <c>negotiated_protocol/1</c> function.</p>
       </item>
 
-      <tag>{reuse_sessions, boolean()}</tag>
-      <item>Specifies if the server should agree to reuse sessions
-      when the clients request to do so. See also the reuse_session
-      option.
-      </item>
+      <tag><c>{next_protocols_advertised, Protocols :: [binary()]}</c></tag>
+      <item><p>List of protocols to send to the client if the client indicates that
+      it supports the Next Protocol extension. The client can select a protocol
+      that is not on this list. The list of protocols must not contain an empty
+      binary. If the server negotiates a Next Protocol, it can be accessed
+      using the <c>negotiated_next_protocol/1</c> method.</p></item>
 
-      <tag>{reuse_session, fun(SuggestedSessionId,
-      PeerCert, Compression, CipherSuite) -> boolean()}</tag>
-      <item>Enables the ssl server to have a local policy
-      for deciding if a session should be reused or not,
-      only meaningful if <c>reuse_sessions</c> is set to true.
-      SuggestedSessionId is a binary(),  PeerCert is a DER encoded
-      certificate, Compression is an enumeration integer
-      and CipherSuite is of type ciphersuite().
-    </item>
+      <tag><c>{psk_identity, string()}</c></tag>
+      <item><p>Specifies the server identity hint, which the server presents to
+      the client.</p></item>
 
-      <tag>{next_protocols_advertised, Protocols :: [binary()]}</tag>
-      <item>The list of protocols to send to the client if the client indicates
-      it supports the Next Protocol extension. The client may select a protocol
-      that is not on this list. The list of protocols must not contain an empty
-      binary. If the server negotiates a Next Protocol it can be accessed
-      using <c>negotiated_next_protocol/1</c> method.
-      </item>
+      <tag><c>{log_alert, boolean()}</c></tag>
+      <item><p>If set to <c>false</c>, error reports are not displayed.</p></item>
+
+      <tag><c>{honor_cipher_order, boolean()}</c></tag>
+      <item><p>If set to <c>true</c>, use the server preference for cipher
+      selection. If set to <c>false</c> (the default), use the client
+      preference.</p></item>
 
-      <tag>{client_renegotiation, boolean()}</tag>
+      <tag><c>{sni_hosts, [{hostname(), ssloptions()}]}</c></tag>
+      <item><p>If the server receives a SNI (Server Name Indication) from the client
+      matching a host listed in the <c>sni_hosts</c> option, the speicific options for
+      that host will override previously specified options.
+
+      The option <c>sni_fun</c>, and <c>sni_hosts</c> are mutually exclusive.</p></item>
+
+      <tag><c>{sni_fun, SNIfun::fun()}</c></tag>
+      <item><p>If the server receives a SNI (Server Name Indication) from the client,
+      the given function will be called to retrive <c>ssloptions()</c> for indicated server.
+      These options will be merged into predefined <c>ssloptions()</c>.
+
+      The function should be defined as:
+        <c>fun(ServerName :: string()) -> ssloptions()</c>
+      and can be specified as a fun or as named <c>fun module:function/1</c>
+
+      The option <c>sni_fun</c>, and <c>sni_hosts</c> are mutually exclusive.</p></item>
+
+      <tag><c>{client_renegotiation, boolean()}</c></tag>
       <item>In protocols that support client-initiated renegotiation, the cost
       of resources of such an operation is higher for the server than the
       client. This can act as a vector for denial of service attacks. The SSL
@@ -526,12 +662,12 @@ fun(srp, Username :: string(), UserState :: term()) ->
       cipher suite can encipher.
       </item>
 
-      <tag>{psk_identity, string()}</tag>
+      <tag><c>{psk_identity, string()}</c></tag>
       <item>Specifies the server identity hint the server presents to the client.
       </item>
-      <tag>{log_alert, boolean()}</tag>
+      <tag><c>{log_alert, boolean()}</c></tag>
       <item>If false, error reports will not be displayed.</item>
-      <tag>{honor_cipher_order, boolean()}</tag>
+      <tag><c>{honor_cipher_order, boolean()}</c></tag>
       <item>If true, use the server's preference for cipher selection. If false
       (the default), use the client's preference.
       </item>
@@ -541,42 +677,36 @@ fun(srp, Username :: string(), UserState :: term()) ->
   <section>
     <title>General</title>
       
-    <p>When an ssl socket is in active mode (the default), data from the
+    <p>When an SSL socket is in active mode (the default), data from the
       socket is delivered to the owner of the socket in the form of
-      messages:
-    </p>
+      messages:</p>
+
     <list type="bulleted">
-      <item>{ssl, Socket, Data}
-      </item>
-      <item>{ssl_closed, Socket}
-      </item>
-      <item>
-        {ssl_error, Socket, Reason}
-      </item>
+      <item><p><c>{ssl, Socket, Data}</c></p></item>
+      <item><p><c>{ssl_closed, Socket}</c></p></item>
+      <item><p><c>{ssl_error, Socket, Reason}</c></p></item>
     </list>
-    
-    <p>A <c>Timeout</c> argument specifies a timeout in milliseconds. The 
-      default value for a <c>Timeout</c> argument is <c>infinity</c>.
-    </p>
+
+    <p>A <c>Timeout</c> argument specifies a time-out in milliseconds. The
+      default value for argument <c>Timeout</c> is <c>infinity</c>.</p>
   </section>
   
   <funcs>
     <func>
       <name>cipher_suites() -></name>
       <name>cipher_suites(Type) -> ciphers()</name>
-      <fsummary> Returns a list of supported cipher suites</fsummary>
+      <fsummary>Returns a list of supported cipher suites.</fsummary>
       <type>
         <v>Type = erlang | openssl | all</v>
-
       </type>
       <desc><p>Returns a list of supported cipher suites.
-	cipher_suites() is equivalent to cipher_suites(erlang).
-	Type openssl is provided for backwards compatibility with
-	old ssl that used openssl. cipher_suites(all) returns
+	<c>cipher_suites()</c> is equivalent to <c>cipher_suites(erlang).</c>
+	Type <c>openssl</c> is provided for backwards compatibility with the
+	old SSL, which used OpenSSL. <c>cipher_suites(all)</c> returns
 	all available cipher suites. The cipher suites not present
-	in cipher_suites(erlang) but in included in cipher_suites(all)
-	will not be used unless explicitly configured by the user.
-	</p>
+	in <c>cipher_suites(erlang)</c> but included in
+	<c>cipher_suites(all)</c> are not used unless explicitly configured
+	by the user.</p>
     </desc>
     </func>
 
@@ -596,17 +726,17 @@ fun(srp, Username :: string(), UserState :: term()) ->
       <name>connect(Socket, SslOptions) -> </name>
       <name>connect(Socket, SslOptions, Timeout) -> {ok, SslSocket}
 	| {error, Reason}</name>
-      <fsummary> Upgrades a gen_tcp, or
-	equivalent, connected socket to an ssl socket. </fsummary>
+      <fsummary>Upgrades a <c>gen_tcp</c>, or
+	equivalent, connected socket to an SSL socket.</fsummary>
       <type>
-        <v>Socket = socket()</v>
-        <v>SslOptions = [ssloption()]</v>
+	<v>Socket = socket()</v>
+	<v>SslOptions = [ssloption()]</v>
 	<v>Timeout = integer() | infinity</v>
 	<v>SslSocket = sslsocket()</v>
 	<v>Reason = term()</v>
       </type>
-      <desc> <p>Upgrades a gen_tcp, or equivalent,
-	  connected socket to an ssl socket i.e. performs the
+      <desc><p>Upgrades a <c>gen_tcp</c>, or equivalent,
+	  connected socket to an SSL socket, that is, performs the
 	  client-side ssl handshake.</p>
     </desc>
     </func>
@@ -615,7 +745,7 @@ fun(srp, Username :: string(), UserState :: term()) ->
       <name>connect(Host, Port, Options) -></name>
       <name>connect(Host, Port, Options, Timeout) ->
 	  {ok, SslSocket} | {error, Reason}</name>
-      <fsummary>Opens an ssl connection to Host, Port. </fsummary>
+      <fsummary>Opens an SSL connection to <c>Host</c>, <c>Port</c>.</fsummary>
       <type>
 	  <v>Host = host()</v>
 	  <v>Port = integer()</v>
@@ -624,72 +754,109 @@ fun(srp, Username :: string(), UserState :: term()) ->
 	  <v>SslSocket = sslsocket()</v>
 	  <v>Reason = term()</v>
       </type>
-      <desc> <p>Opens an ssl connection to Host, Port.</p> </desc>
+      <desc><p>Opens an SSL connection to <c>Host</c>, <c>Port</c>.</p></desc>
     </func>
 
     <func>
       <name>close(SslSocket) -> ok | {error, Reason}</name>
-      <fsummary>Close an ssl connection</fsummary>
+      <fsummary>Closes an SSL connection.</fsummary>
       <type>
 	  <v>SslSocket = sslsocket()</v>
 	  <v>Reason = term()</v>
       </type>
-      <desc><p>Close an ssl connection.</p>
+      <desc><p>Closes an SSL connection.</p>
+      </desc>
+    </func>
+
+    <func>
+	<name>connection_info(SslSocket) ->
+	  {ok, {ProtocolVersion, CipherSuite}} | {error, Reason}</name>
+      <fsummary>Returns the Negotiated Protocol version and cipher suite.
+      </fsummary>
+      <type>
+        <v>CipherSuite = ciphersuite()</v>
+        <v>ProtocolVersion = protocol()</v>
+      </type>
+      <desc><p>Returns the Negotiated Protocol version and cipher suite.</p> 
       </desc>
     </func>
 
     <func>
       <name>controlling_process(SslSocket, NewOwner) ->
 	ok | {error, Reason}</name>
-      
 	<fsummary>Assigns a new controlling process to the
-	ssl-socket.</fsummary>
-      
+	SSL socket.</fsummary>
 	<type>
 	  <v>SslSocket = sslsocket()</v>
 	  <v>NewOwner = pid()</v>
 	  <v>Reason = term()</v>
 	</type>
-	<desc><p>Assigns a new controlling process to the ssl-socket. A
-      controlling process is the owner of an ssl-socket, and receives
-      all messages from the socket.</p>
+	<desc><p>Assigns a new controlling process to the SSL socket. A
+	controlling process is the owner of an SSL socket, and receives
+	all messages from the socket.</p>
       </desc>
     </func>
 
     <func>
-	<name>connection_info(SslSocket) ->
-	  {ok, {ProtocolVersion, CipherSuite}} |  {error, Reason} </name>
-      <fsummary>Returns the negotiated protocol version and cipher suite.
+      <name>connection_information(SslSocket) ->
+        {ok, Info} |  {error, Reason} </name>
+      <fsummary>Returns all the connection information.
+      </fsummary>
+      <type>
+        <v>Info = [InfoTuple]</v>
+        <v>InfoTuple = {protocol, Protocol} | {cipher_suite, CipherSuite} | {sni_hostname, SNIHostname}</v>
+        <v>CipherSuite = ciphersuite()</v>
+        <v>ProtocolVersion = protocol()</v>
+        <v>SNIHostname = string()</v>
+        <v>Reason = term()</v>
+      </type>
+      <desc><p>Return all the connection information containing negotiated protocol version, cipher suite, and the hostname of SNI extension.
+      Info will be a proplists containing all the connection information on success, otherwise <c>{error, Reason}</c> will be returned.</p> 
+      </desc>
+    </func>
+
+    <func>
+      <name>connection_information(SslSocket, Items) ->
+        {ok, Info} |  {error, Reason} </name>
+      <fsummary>Returns the requested connection information.
       </fsummary>
       <type>
+        <v>Items = [Item]</v>
+        <v>Item = protocol | cipher_suite | sni_hostname</v>
+        <v>Info = [InfoTuple]</v>
+        <v>InfoTuple = {protocol, Protocol} | {cipher_suite, CipherSuite} | {sni_hostname, SNIHostname}</v>
         <v>CipherSuite = ciphersuite()</v>
         <v>ProtocolVersion = protocol()</v>
+        <v>SNIHostname = string()</v>
+        <v>Reason = term()</v>
       </type>
-      <desc><p>Returns the negotiated protocol version and cipher suite.</p> 
+      <desc><p>Returns the connection information you requested. The connection information you can request contains protocol, cipher_suite, and sni_hostname.
+      <c>{ok, Info}</c> will be returned if it executes sucessfully. The Info is a proplists containing the information you requested.
+      Otherwise, <c>{error, Reason}</c> will be returned.</p>
       </desc>
     </func>
 
-     <func>
+    <func>
       <name>format_error(Reason) -> string()</name>
-      <fsummary>Return an error string.</fsummary>
+      <fsummary>Returns an error string.</fsummary>
       <type>
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p>Presents the error returned by an ssl function as a printable string.</p>
+        <p>Presents the error returned by an SSL function as a printable string.</p>
       </desc>
     </func>
    
     <func>
       <name>getopts(Socket, OptionNames) ->
 	{ok, [socketoption()]} | {error, Reason}</name>
-      <fsummary>Get the value of the specified options.</fsummary>
+      <fsummary>Gets the values of the specified options.</fsummary>
       <type>
 	<v>Socket = sslsocket()</v>
 	<v>OptionNames = [atom()]</v>
       </type>
       <desc>
-	<p>Get the value of the specified socket options.
+	<p>Gets the values of the specified socket options.
 	</p>
       </desc>
     </func>
@@ -697,34 +864,49 @@ fun(srp, Username :: string(), UserState :: term()) ->
     <func>
       <name>listen(Port, Options) ->
 	{ok, ListenSocket} | {error, Reason}</name>
-      <fsummary>Creates an ssl listen socket.</fsummary>
+      <fsummary>Creates an SSL listen socket.</fsummary>
       <type>
 	<v>Port = integer()</v>
 	<v>Options = options()</v>
 	<v>ListenSocket = sslsocket()</v>
       </type>
       <desc>
-	<p>Creates an ssl listen socket.</p>
+	<p>Creates an SSL listen socket.</p>
       </desc>
     </func>
 
     <func>
+      <name>negotiated_protocol(Socket) -> {ok, Protocol} | {error, protocol_not_negotiated}</name>
+      <fsummary>Returns the protocol negotiated through ALPN or NPN extensions.</fsummary>
+      <type>
+        <v>Socket = sslsocket()</v>
+        <v>Protocol = binary()</v>
+      </type>
+      <desc>
+        <p>
+          Returns the protocol negotiated through ALPN or NPN extensions.
+        </p>
+      </desc>
+    </func>
+    
+    <func>
       <name>peercert(Socket) -> {ok, Cert} | {error, Reason}</name>
-      <fsummary>Return the peer certificate.</fsummary>
+      <fsummary>Returns the peer certificate.</fsummary>
      <type>
         <v>Socket = sslsocket()</v>
         <v>Cert = binary()</v>
       </type>
       <desc>
-        <p>The peer certificate is returned as a DER encoded binary.
-	  The certificate can be decoded with <c>public_key:pkix_decode_cert/2</c>.
-        </p>
+        <p>The peer certificate is returned as a DER-encoded binary.
+	  The certificate can be decoded with
+	  <c>public_key:pkix_decode_cert/2</c>.</p>
       </desc>
     </func>
+
     <func>
       <name>peername(Socket) -> {ok, {Address, Port}} |
 	{error, Reason}</name>
-      <fsummary>Return peer address and port.</fsummary>
+      <fsummary>Returns the peer address and port.</fsummary>
       <type>
         <v>Socket = sslsocket()</v>
         <v>Address = ipaddress()</v>
@@ -734,12 +916,32 @@ fun(srp, Username :: string(), UserState :: term()) ->
         <p>Returns the address and port number of the peer.</p>
       </desc>
     </func>
+
+    <func>
+      <name>prf(Socket, Secret, Label, Seed, WantedLength) -> {ok, binary()} | {error, reason()}</name>
+      <fsummary>Uses a session Pseudo-Random Function to generate key material.</fsummary>
+      <type>
+	<v>Socket = sslsocket()</v>
+	<v>Secret = binary() | master_secret</v>
+	<v>Label = binary()</v>
+	<v>Seed = [binary() | prf_random()]</v>
+	<v>WantedLength = non_neg_integer()</v>
+      </type>
+      <desc>
+        <p>Uses the Pseudo-Random Function (PRF) of a TLS session to generate
+	  extra key material. It either takes user-generated values for
+	  <c>Secret</c> and <c>Seed</c> or atoms directing it to use a specific
+	  value from the session security parameters.</p>
+        <p>Can only be used with TLS connections; <c>{error, undefined}</c>
+	  is returned for SSLv3 connections.</p>
+      </desc>
+    </func>
     
     <func>
       <name>recv(Socket, Length) -> </name>
       <name>recv(Socket, Length, Timeout) -> {ok, Data} | {error,
 	Reason}</name>
-      <fsummary>Receive data on a socket.</fsummary>
+      <fsummary>Receives data on a socket.</fsummary>
       <type>
         <v>Socket = sslsocket()</v>
         <v>Length = integer()</v>
@@ -747,63 +949,43 @@ fun(srp, Username :: string(), UserState :: term()) ->
         <v>Data = [char()] | binary()</v>
       </type>
       <desc>
-        <p>This function receives a packet from a socket in passive
-          mode. A closed socket is indicated by a return value
+        <p>Receives a packet from a socket in passive
+          mode. A closed socket is indicated by return value
           <c>{error, closed}</c>.</p>
-        <p>The <c>Length</c> argument is only meaningful when
-          the socket is in <c>raw</c> mode and denotes the number of
+        <p>Argument <c>Length</c> is meaningful only when
+          the socket is in mode <c>raw</c> and denotes the number of
           bytes to read. If <c>Length</c> = 0, all available bytes are
           returned. If <c>Length</c> &gt; 0, exactly <c>Length</c>
           bytes are returned, or an error; possibly discarding less
           than <c>Length</c> bytes of data when the socket gets closed
           from the other side.</p>
-        <p>The optional <c>Timeout</c> parameter specifies a timeout in
+        <p>Optional argument <c>Timeout</c> specifies a time-out in
           milliseconds. The default value is <c>infinity</c>.</p>
       </desc>
     </func>
     
     <func>
-      <name>prf(Socket, Secret, Label, Seed, WantedLength) -> {ok, binary()} | {error, reason()}</name>
-      <fsummary>Use a sessions pseudo random function to generate key material.</fsummary>
-      <type>
-	<v>Socket = sslsocket()</v>
-	<v>Secret = binary() | master_secret</v>
-	<v>Label = binary()</v>
-	<v>Seed = [binary() | prf_random()]</v>
-	<v>WantedLength = non_neg_integer()</v>
-      </type>
-      <desc>
-        <p>Use the pseudo random function (PRF) of a TLS session to generate
-	  additional key material. It either takes user generated values for
-	  <c>Secret</c> and <c>Seed</c> or atoms directing it use a specific
-	  value from the session security parameters.</p>
-        <p>This function can only be used with TLS connections, <c>{error, undefined}</c>
-	  is returned for SSLv3 connections.</p>
-      </desc>
-    </func>
-
-    <func>
       <name>renegotiate(Socket) -> ok | {error, Reason}</name>
-      <fsummary> Initiates a new handshake.</fsummary>
+      <fsummary>Initiates a new handshake.</fsummary>
       <type>
 	<v>Socket = sslsocket()</v>
       </type>
       <desc><p>Initiates a new handshake. A notable return value is
       <c>{error, renegotiation_rejected}</c> indicating that the peer
-      refused to go through with the renegotiation but the connection
+      refused to go through with the renegotiation, but the connection
       is still active using the previously negotiated session.</p>
       </desc>
     </func>
     
     <func>
       <name>send(Socket, Data) -> ok | {error, Reason}</name>
-      <fsummary>Write data to a socket.</fsummary>
+      <fsummary>Writes data to a socket.</fsummary>
       <type>
         <v>Socket = sslsocket()</v>
         <v>Data = iodata()</v>
       </type>
       <desc>
-        <p>Writes <c>Data</c> to <c>Socket</c>. </p>
+        <p>Writes <c>Data</c> to <c>Socket</c>.</p>
         <p>A notable return value is <c>{error, closed}</c> indicating that
           the socket is closed.</p>
       </desc>
@@ -811,31 +993,31 @@ fun(srp, Username :: string(), UserState :: term()) ->
 
     <func>
       <name>setopts(Socket, Options) -> ok | {error, Reason}</name>
-      <fsummary>Set socket options.</fsummary>
+      <fsummary>Sets socket options.</fsummary>
       <type>
         <v>Socket = sslsocket()</v>
         <v>Options = [socketoption]()</v>
       </type>
       <desc>
-        <p>Sets options according to <c>Options</c> for the socket 
-          <c>Socket</c>. </p>
+        <p>Sets options according to <c>Options</c> for socket
+          <c>Socket</c>.</p>
       </desc>
     </func>
 
     <func>
       <name>shutdown(Socket, How) -> ok | {error, Reason}</name>
-      <fsummary>Immediately close a socket</fsummary>
+      <fsummary>Immediately closes a socket.</fsummary>
       <type>
         <v>Socket = sslsocket()</v>
         <v>How = read | write | read_write</v>
         <v>Reason = reason()</v>
       </type>
       <desc>
-        <p>Immediately close a socket in one or two directions.</p>
+        <p>Immediately closes a socket in one or two directions.</p>
         <p><c>How == write</c> means closing the socket for writing,
           reading from it is still possible.</p>
         <p>To be able to handle that the peer has done a shutdown on
-          the write side, the <c>{exit_on_close, false}</c> option
+          the write side, option <c>{exit_on_close, false}</c>
           is useful.</p>
       </desc>
     </func>
@@ -843,16 +1025,16 @@ fun(srp, Username :: string(), UserState :: term()) ->
     <func>
       <name>ssl_accept(Socket) -> </name>
       <name>ssl_accept(Socket, Timeout) -> ok | {error, Reason}</name>
-      <fsummary>Perform server-side SSL/TLS handshake</fsummary>
+      <fsummary>Performs server-side SSL/TLS handshake.</fsummary>
       <type>
         <v>Socket = sslsocket()</v>
         <v>Timeout = integer()</v>
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p> Performs the SSL/TLS server-side handshake <c>Socket</c> is a socket as returned
-	by  <seealso
-        marker="#transport_accept-2">ssl:transport_accept/[1,2]</seealso>
+        <p>Performs the SSL/TLS server-side handshake.</p>
+	<p><c>Socket</c> is a socket as returned by
+	<seealso marker="#transport_accept-2">ssl:transport_accept/[1,2]</seealso>
 	</p>
       </desc>
     </func>
@@ -860,7 +1042,7 @@ fun(srp, Username :: string(), UserState :: term()) ->
     <func>
       <name>ssl_accept(Socket, SslOptions) -> </name>
       <name>ssl_accept(Socket, SslOptions, Timeout) -> {ok, Socket} | ok | {error, Reason}</name>
-      <fsummary>Perform server-side SSL/TLS handshake</fsummary>
+      <fsummary>Performs server-side SSL/TLS handshake.</fsummary>
       <type>
         <v>Socket = socket() | sslsocket() </v>
 	<v>SslOptions = ssloptions()</v>
@@ -868,17 +1050,19 @@ fun(srp, Username :: string(), UserState :: term()) ->
         <v>Reason = term()</v>
       </type>
       <desc>
-        <p> If <c>Socket</c> is a socket() - upgrades a gen_tcp, or equivalent, socket to an ssl socket
-        i.e. performs the SSL/TLS server-side handshake and returns the ssl socket.
-	</p>
+        <p>If <c>Socket</c> is a <c>socket()</c>: upgrades a <c>gen_tcp</c>,
+	or equivalent, socket to an SSL socket, that is, performs
+        the SSL/TLS server-side handshake and returns the SSL socket.</p>
 	
-	<warning><p>Note that the listen socket should be in {active, false} mode
+	<warning><p>The listen socket is to be in mode <c>{active, false}</c>
 	before telling the client that the server is ready to upgrade
-	by calling this function, otherwise the upgrade may
-	or may not succeed depending on timing.</p></warning>
+	by calling this function, else the upgrade succeeds or does not
+	succeed depending on timing.</p></warning>
 	
-	<p> If <c>Socket</c> is an sslsocket() - provides additional SSL/TLS options to those specified in <seealso
-        marker="#listen-2">ssl:listen/2 </seealso> and then performs the SSL/TLS handshake.
+	<p>If <c>Socket</c> is an <c>sslsocket()</c>: provides extra SSL/TLS
+	options to those specified in
+	<seealso marker="#listen-2">ssl:listen/2 </seealso> and then performs
+	the SSL/TLS handshake.
 	</p>
       </desc>
     </func>
@@ -886,14 +1070,14 @@ fun(srp, Username :: string(), UserState :: term()) ->
     <func>
       <name>sockname(Socket) -> {ok, {Address, Port}} |
 	{error, Reason}</name>
-      <fsummary>Return the local address and port.</fsummary>
+      <fsummary>Returns the local address and port.</fsummary>
       <type>
         <v>Socket = sslsocket()</v>
         <v>Address = ipaddress()</v>
         <v>Port = integer()</v>
       </type>
       <desc>
-        <p>Returns the local address and port number of the socket
+        <p>Returns the local address and port number of socket
           <c>Socket</c>.</p>
       </desc>
     </func>
@@ -901,22 +1085,21 @@ fun(srp, Username :: string(), UserState :: term()) ->
     <func>
       <name>start() -> </name>
       <name>start(Type) -> ok | {error, Reason}</name>
-      <fsummary>Starts the Ssl application. </fsummary>
+      <fsummary>Starts the SSL application.</fsummary>
       <type>
-        <v>Type =  permanent | transient | temporary</v>
+        <v>Type = permanent | transient | temporary</v>
       </type>
       <desc>
-        <p>Starts the Ssl application. Default type
-          is temporary.
-          <seealso marker="kernel:application">application(3)</seealso></p>
+        <p>Starts the SSL application. Default type
+          is <c>temporary</c>.</p>
       </desc>
     </func>
+
     <func>
       <name>stop() -> ok </name>
-      <fsummary>Stops the Ssl application.</fsummary>
+      <fsummary>Stops the SSL application.</fsummary>
       <desc>
-        <p>Stops the Ssl application.
-          <seealso marker="kernel:application">application(3)</seealso></p>
+        <p>Stops the SSL application.</p>
       </desc>
     </func>
 
@@ -924,8 +1107,8 @@ fun(srp, Username :: string(), UserState :: term()) ->
       <name>transport_accept(ListenSocket) -></name>
       <name>transport_accept(ListenSocket, Timeout) ->
 	{ok, NewSocket} | {error, Reason}</name>
-      <fsummary>Accept an incoming connection and
-	prepare for <c>ssl_accept</c></fsummary>
+      <fsummary>Accepts an incoming connection and
+	prepares for <c>ssl_accept</c>.</fsummary>
       <type>
         <v>ListenSocket = NewSocket = sslsocket()</v>
         <v>Timeout = integer()</v>
@@ -934,66 +1117,66 @@ fun(srp, Username :: string(), UserState :: term()) ->
       <desc>
         <p>Accepts an incoming connection request on a listen socket.
 	<c>ListenSocket</c> must be a socket returned from
-	<seealso
-	    marker="#listen-2"> ssl:listen/2</seealso>.
-	The socket returned should be passed to
+	<seealso marker="#listen-2"> ssl:listen/2</seealso>.
+	The socket returned is to be passed to
 	<seealso marker="#ssl_accept-2"> ssl:ssl_accept[2,3]</seealso>
-	to complete handshaking i.e
+	to complete handshaking, that is,
 	establishing the SSL/TLS connection.</p>
         <warning>
           <p>The socket returned can only be used with
-	  <seealso marker="#ssl_accept-2"> ssl:ssl_accept[2,3]</seealso>
-	  no traffic can be sent or received before that call.</p>
+	  <seealso marker="#ssl_accept-2"> ssl:ssl_accept[2,3]</seealso>.
+	  No traffic can be sent or received before that call.</p>
         </warning>
         <p>The accepted socket inherits the options set for
-	<c>ListenSocket</c> in <seealso
-	    marker="#listen-2"> ssl:listen/2</seealso>.</p>
+	<c>ListenSocket</c> in
+	<seealso marker="#listen-2"> ssl:listen/2</seealso>.</p>
 	<p>The default
 	value for <c>Timeout</c> is <c>infinity</c>. If
-	<c>Timeout</c> is specified, and no connection is accepted
+	<c>Timeout</c> is specified and no connection is accepted
 	within the given time, <c>{error, timeout}</c> is
 	returned.</p>
       </desc>
     </func>
     
     <func>
-      <name>versions() ->
-	[{SslAppVer, SupportedSslVer, AvailableSslVsn}]</name>
+      <name>versions() -> [versions_info()]</name>
       <fsummary>Returns version information relevant for the
-	ssl application.</fsummary>
-      <type>
-	<v>SslAppVer = string()</v>
-      	<v>SupportedSslVer = [protocol()]</v>
-      	<v>AvailableSslVsn = [protocol()]</v>
-      </type>
-      <desc>
-	<p>
-	  Returns version information relevant for the
-	  ssl application.</p>
-      </desc>
-    </func>
-    <func>
-      <name>negotiated_next_protocol(Socket) -> {ok, Protocol} | {error, next_protocol_not_negotiated}</name>
-      <fsummary>Returns the Next Protocol negotiated.</fsummary>
+	SSL application.</fsummary>
       <type>
-        <v>Socket = sslsocket()</v>
-        <v>Protocol = binary()</v>
+	<v>versions_info() = {app_vsn, string()} | {supported | available, [protocol()] </v>
       </type>
       <desc>
-        <p>
-          Returns the Next Protocol negotiated.
-        </p>
+	<p>Returns version information relevant for the SSL
+	application.</p>
+	<taglist>
+	  <tag><c>app_vsn</c></tag>
+	  <item>The application version of the SSL application.</item>
+
+	  <tag><c>supported</c></tag>
+	  <item>TLS/SSL versions supported by default.
+	  Overridden by a version option on
+	  <seealso marker="#connect-2"> connect/[2,3,4]</seealso>,
+	  <seealso marker="#listen-2"> listen/2</seealso>, and <seealso
+	  marker="#ssl_accept-2">ssl_accept/[1,2,3]</seealso>.
+	  For the negotiated TLS/SSL version, see <seealso
+	  marker="#connection_info-1">ssl:connection_info/1
+	  </seealso>.</item>
+  
+	  <tag><c>available</c></tag>
+	  <item>All TLS/SSL versions supported by the SSL application.
+	  TLS 1.2 requires sufficient support from the Crypto
+	  application.</item>
+	</taglist>
       </desc>
     </func>
-
+   
   </funcs> 
 
   <section>
     <title>SEE ALSO</title>
-    <p><seealso marker="kernel:inet">inet(3) </seealso> and 
-      <seealso marker="kernel:gen_tcp">gen_tcp(3) </seealso>
+    <p><seealso marker="kernel:inet">inet(3)</seealso> and
+      <seealso marker="kernel:gen_tcp">gen_tcp(3)</seealso>
     </p>
   </section>
 
 </erlref>
-
diff --git a/lib/ssl/doc/src/ssl_app.xml b/lib/ssl/doc/src/ssl_app.xml
index f1377cabda..f17f5cb9fe 100644
--- a/lib/ssl/doc/src/ssl_app.xml
+++ b/lib/ssl/doc/src/ssl_app.xml
@@ -22,66 +22,60 @@
     </legalnotice>
 
     <title>ssl</title>
+    <prepared></prepared>
+    <docno></docno>
+    <date></date>
+    <rev></rev>
     <file>ssl_app.sgml</file>
   </header>
   <app>ssl</app>
-  <appsummary>The SSL application provides secure communication over
+  <appsummary>The ssl application provides secure communication over
   sockets.</appsummary>
 
+  <description></description>
   <section>
     <title>DEPENDENCIES</title>
-    <p>The ssl application uses the Erlang applications public_key and
-    crypto to handle public keys and encryption, hence these
-    applications needs to be loaded for the ssl application to work. In
-    an embedded environment that means they need to be started with
-    application:start/[1,2] before the ssl application is started.
-    </p>
+    <p>The SSL application uses the <c>public_key</c> and
+    Crypto application to handle public keys and encryption, hence
+    these applications must be loaded for the SSL application to work. 
+    In an embedded environment this means they must be started with
+    <c>application:start/[1,2]</c> before the SSL application is 
+    started.</p>
   </section>
 
   <section>
-    <title>ENVIRONMENT</title>
-    <p>The following application environment configuration parameters
-    are defined for the SSL application. See <seealso
-    marker="kernel:application">application(3)</seealso>for more
-    information about configuration parameters.
-      </p>
-    <p>Note that the environment parameters can be set on the command line,
-      for instance,</p>
-    <p><c>erl ... -ssl protocol_version '[sslv3, tlsv1]' ...</c>.
-      </p>
+    <title>CONFIGURATION</title>
+    <p>The application environment configuration parameters in this section 
+    are defined for the SSL application. For more information 
+    about configuration parameters, see the 
+    <seealso marker="kernel:application">application(3)</seealso>
+    manual page in Kernel.</p>
+
+    <p>The environment parameters can be set on the command line,
+    for example:</p>
+
+    <p><c>erl -ssl protocol_version "['tlsv1.2', 'tlsv1.1']"</c></p>
+
     <taglist>
-      <tag><c><![CDATA[protocol_version = [sslv3|tlsv1] <optional>]]></c>.</tag>
-      <item>
-	<p>Protocol that will be supported by started clients and
-	servers. If this option is not set it will default to all
-	protocols currently supported by the erlang ssl application.
-	Note that this option may be overridden by the version option
-	to ssl:connect/[2,3] and ssl:listen/2.
-	</p>
-      </item>
+      <tag><c><![CDATA[protocol_version =  <seealso marker="kernel:error_logger">ssl:protocol()</seealso> <optional>]]></c>.</tag>
+      <item><p>Protocol supported by started clients and
+      servers. If this option is not set, it defaults to all
+      protocols currently supported by the SSL application.
+      This option can be overridden by the version option
+      to <c>ssl:connect/[2,3]</c> and <c>ssl:listen/2</c>.</p></item>
 
       <tag><c><![CDATA[session_lifetime = integer() <optional>]]></c></tag>
-      <item>
-	<p>The lifetime of session data in seconds. 
-	</p>
-      </item>
+      <item><p>Lifetime of the session data in seconds.</p></item>
 
-        <tag><c><![CDATA[session_cb = atom() <optional>]]></c></tag>
-      <item>
-        <p>
-	  Name of session cache callback module that implements
-	  the ssl_session_cache_api behavior, defaults to
-	  ssl_session_cache.erl.
-          </p>
-      </item>
+      <tag><c><![CDATA[session_cb = atom() <optional>]]></c></tag>
+      <item><p>Name of the session cache callback module that implements
+      the <c>ssl_session_cache_api</c> behavior. Defaults to
+      <c>ssl_session_cache.erl</c>.</p></item>
 
-      <tag><c><![CDATA[session_cb_init_args = list() <optional>]]></c></tag>
-      <item>
-	<p>
-	  List of arguments to the init function in session cache
-	  callback module, defaults to [].
-	</p>
-      </item>
+      <tag><c><![CDATA[session_cb_init_args = proplist:proplist() <optional>]]></c></tag>
+
+      <item><p>List of extra user-defined arguments to the <c>init</c> function
+      in the session cache callback module. Defaults to <c>[]</c>.</p></item>
       
       <tag><c><![CDATA[ssl_pem_cache_clean = integer() <optional>]]></c></tag>
       <item>
@@ -96,6 +90,11 @@
   </section>
 
   <section>
+    <title>ERROR LOGGER AND EVENT HANDLERS</title>
+    <p>The SSL application uses the default <seealso marker="kernel:error_logger">OTP error logger</seealso> to log unexpected errors and TLS alerts. The logging of TLS alerts may be turned off with the <c>log_alert</c> option. </p>
+  </section>
+
+  <section>
     <title>SEE ALSO</title>
 	<p><seealso marker="kernel:application">application(3)</seealso></p>
   </section>
diff --git a/lib/ssl/doc/src/ssl_crl_cache.xml b/lib/ssl/doc/src/ssl_crl_cache.xml
new file mode 100644
index 0000000000..83b03375b1
--- /dev/null
+++ b/lib/ssl/doc/src/ssl_crl_cache.xml
@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!DOCTYPE erlref SYSTEM "erlref.dtd">
+
+<erlref>
+  <header>
+    <copyright>
+      <year>2015</year><year>2015</year>
+      <holder>Ericsson AB. All Rights Reserved.</holder>
+    </copyright>
+    <legalnotice>
+      The contents of this file are subject to the Erlang Public License,
+      Version 1.1, (the "License"); you may not use this file except in
+      compliance with the License. You should have received a copy of the
+      Erlang Public License along with this software. If not, it can be
+      retrieved online at http://www.erlang.org/.
+
+      Software distributed under the License is distributed on an "AS IS"
+      basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+      the License for the specific language governing rights and limitations
+      under the License.
+    </legalnotice>
+    <title>ssl_crl_cache</title>
+    <file>ssl_crl_cache.xml</file>
+  </header>
+  
+  <module>ssl_crl_cache</module>
+  <modulesummary>CRL cache </modulesummary>
+  <description>
+    <p>
+      Implements an internal CRL (Certificate Revocation List) cache.
+      In addition to implementing the <seealso
+      marker="ssl_crl_cache_api"> ssl_crl_cache_api</seealso> behaviour
+      the following functions are available.
+    </p>
+  </description>
+  
+    <funcs>
+      <func>
+	<name>delete(Entries) -> ok |  {error, Reason} </name>
+	<fsummary> </fsummary>
+	<type>
+	  <v> Entries =  <seealso marker="inets:http_uri">http_uri:uri() </seealso> | {file, string()} | {der, [<seealso
+	  marker="public_key:public_key"> public_key:der_encoded() </seealso>]}</v>
+	  <v> Reason = term()</v>
+	</type>
+	<desc>
+	  <p>Delete CRLs from the ssl applications local cache. </p>
+	</desc>
+      </func>     
+      <func>
+	<name>insert(CRLSrc) -> ok | {error, Reason}</name>
+	<name>insert(URI, CRLSrc) -> ok | {error, Reason}</name>
+	<fsummary> </fsummary>
+	<type>
+	  <v> CRLSrc = {file, string()} | {der, [ <seealso
+	marker="public_key:public_key"> public_key:der_encoded() </seealso> ]}</v>
+	  <v> URI = <seealso marker="inets:http_uri">http_uri:uri() </seealso> </v>
+	  <v> Reason = term()</v>
+	</type>
+	<desc>
+	 <p>Insert CRLs into the ssl applications local cache. </p>
+	</desc>
+      </func>
+    </funcs>
+</erlref>
\ No newline at end of file
diff --git a/lib/ssl/doc/src/ssl_crl_cache_api.xml b/lib/ssl/doc/src/ssl_crl_cache_api.xml
new file mode 100644
index 0000000000..9230442ae0
--- /dev/null
+++ b/lib/ssl/doc/src/ssl_crl_cache_api.xml
@@ -0,0 +1,105 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!DOCTYPE erlref SYSTEM "erlref.dtd">
+
+<erlref>
+  <header>
+    <copyright>
+      <year>2015</year><year>2015</year>
+      <holder>Ericsson AB. All Rights Reserved.</holder>
+    </copyright>
+    <legalnotice>
+      The contents of this file are subject to the Erlang Public License,
+      Version 1.1, (the "License"); you may not use this file except in
+      compliance with the License. You should have received a copy of the
+      Erlang Public License along with this software. If not, it can be
+      retrieved online at http://www.erlang.org/.
+
+      Software distributed under the License is distributed on an "AS IS"
+      basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+      the License for the specific language governing rights and limitations
+      under the License.
+    </legalnotice>
+    <title>ssl_crl_cache_api</title>
+    <file>ssl_crl_cache_api.xml</file>
+  </header>
+  
+  <module>ssl_crl_cache_api</module>
+  <modulesummary>API for a SSL/TLS CRL (Certificate Revocation List) cache.</modulesummary>
+  <description>
+    <p>
+      When SSL/TLS performs certificate path validation according to
+      <url href="http://www.ietf.org/rfc/rfc5280.txt">RFC 5280 </url>
+      it should also perform CRL validation checks. To enable the CRL
+      checks the application needs access to CRLs. A database of CRLs
+      can be set up in many different ways. This module provides the
+      behavior of the API needed to integrate an arbitrary CRL cache
+      with the erlang ssl application. It is also used by the
+      application itself to provide a simple default implementation of
+      a CRL cache.
+    </p>
+  </description>
+  
+  <section>
+    <title>DATA TYPES</title>
+    
+    <p>The following data types are used in the functions below:
+    </p>
+    
+    <taglist>
+      
+    <tag><c>cache_ref() =</c></tag> 
+    <item>opaque()</item>
+    <tag><c>dist_point() =</c></tag>
+    <item><p>#'DistributionPoint'{} see <seealso
+    marker="public_key:public_key_records"> X509 certificates records</seealso></p></item>
+    
+    </taglist>
+    
+  </section>
+  <funcs>
+      <func>
+      <name>fresh_crl(DistributionPoint, CRL) -> FreshCRL</name>
+      <fsummary> <c>fun fresh_crl/2 </c> will be used as input option <c>update_crl</c> to
+      public_key:pkix_crls_validate/3 </fsummary>
+      <type>
+	<v> DistributionPoint = dist_point() </v>
+	<v> CRL = [<seealso
+	marker="public_key:public_key">public_key:der_encoded()</seealso>] </v>
+	<v> FreshCRL = [<seealso
+	marker="public_key:public_key">public_key:der_encoded()</seealso>] </v>
+      </type>
+      <desc>
+	<p> <c>fun fresh_crl/2 </c> will be used as input option <c>update_crl</c> to
+	<seealso marker="public_key:public_key#pkix_crls_validate-3">public_key:pkix_crls_validate/3 </seealso> </p>
+      </desc>
+    </func>
+    
+    <func>
+      <name>lookup(DistributionPoint, DbHandle) -> not_available | CRLs </name>
+      <fsummary> </fsummary>
+      <type>
+        <v> DistributionPoint = dist_point() </v>
+	<v> DbHandle  = cache_ref() </v>
+	<v> CRLs = [<seealso
+	   marker="public_key:public_key">public_key:der_encoded()</seealso>] </v>
+	</type>
+	<desc> <p>Lookup the CRLs belonging to the distribution point <c> Distributionpoint</c>. </p>
+	This function may choose to only look in the cache or to follow distribution point
+	links depending on how the cache is administrated.
+	</desc>
+    </func>
+    
+    <func>
+      <name>select(Issuer, DbHandle) -> CRLs </name>
+      <fsummary>Select the CRLs in the cache that are issued by <c>Issuer</c></fsummary>
+      <type>
+	<v> Issuer = <seealso
+	marker="public_key:public_key">public_key:issuer_name()</seealso></v>
+	<v> DbHandle  = cache_ref() </v>
+	</type>
+	<desc>
+	  <p>Select the CRLs in the cache that are issued by <c>Issuer</c> </p>
+	</desc>
+    </func>
+  </funcs>
+</erlref>
\ No newline at end of file
diff --git a/lib/ssl/doc/src/ssl_distribution.xml b/lib/ssl/doc/src/ssl_distribution.xml
index 4b4d042f70..effb304938 100644
--- a/lib/ssl/doc/src/ssl_distribution.xml
+++ b/lib/ssl/doc/src/ssl_distribution.xml
@@ -31,23 +31,20 @@
     <rev>B</rev>
     <file>ssl_distribution.xml</file>
   </header>
-  <p>This chapter describes how the Erlang distribution can use 
-    SSL to get additional verification and security.
-  </p>
+  <p>This section describes how the Erlang distribution can use 
+    SSL to get extra verification and security.</p>
 
-  <section>
-    <title>Introduction</title>
-    <p>The Erlang distribution can in theory use almost any connection
-      based protocol as bearer. A module that implements the protocol
-      specific parts of the connection setup is however needed. The
-      default distribution module is <c>inet_tcp_dist</c> which is
-      included in the Kernel application. When starting an
+    <p>The Erlang distribution can in theory use almost any 
+      connection-based protocol as bearer. However, a module that 
+      implements the protocol-specific parts of the connection setup is 
+      needed. The default distribution module is <c>inet_tcp_dist</c> 
+      in the Kernel application. When starting an
       Erlang node distributed, <c>net_kernel</c> uses this module to
-      setup listen ports and connections. </p>
+      set up listen ports and connections.</p>
 
-      <p>In the SSL application there is an additional distribution
-      module, <c>inet_tls_dist</c> which can be used as an
-      alternative. All distribution connections will be using SSL and
+      <p>In the SSL application, an exra distribution
+      module, <c>inet_tls_dist</c>, can be used as an
+      alternative. All distribution connections will use SSL and
       all participating Erlang nodes in a distributed system must use
       this distribution module.</p>
 
@@ -55,35 +52,45 @@
       SSL connection setup. Erlang node cookies are however always
       used, as they can be used to differentiate between two different
       Erlang networks.</p>
-    <p>Setting up Erlang distribution over SSL involves some simple but
-      necessary steps:</p>
+
+    <p>To set up Erlang distribution over SSL:</p>
 
       <list type="bulleted">
-      <item>Building boot scripts including the SSL application</item>
-      <item>Specifying the distribution module for net_kernel</item>
-      <item>Specifying security options and other SSL options</item>
+      <item><em>Step 1:</em> Build boot scripts including the
+      SSL application.</item>
+      <item><em>Step 2:</em> Specify the distribution module for 
+      <c>net_kernel</c>.</item>
+      <item><em>Step 3:</em> Specify the security options and other 
+      SSL options.</item>
+      <item><em>Step 4:</em> Set up the environment to always use SSL.</item>
     </list>
-    <p>The rest of this chapter describes the above mentioned steps in
-      more detail.</p>
-  </section>
+
+    <p>The following sections describe these steps.</p>
 
   <section>
-    <title>Building boot scripts including the SSL application</title>
+    <title>Building Boot Scripts Including the ssl Application</title>
     <p>Boot scripts are built using the <c>systools</c> utility in the
-      SASL application. Refer to the SASL documentations
-      for more information on systools. This is only an example of
+      <c>sasl</c> application. For more information on <c>systools</c>,
+      see the <c>sasl</c> documentation. This is only an example of
       what can be done.</p>
 
-      <p>The simplest boot script possible includes only the Kernel
-      and STDLIB applications. Such a script is located in the
-      Erlang distributions bin directory. The source for the script
-      can be found under the Erlang installation top directory under
-      <c><![CDATA[releases/<OTP version>/start_clean.rel]]></c>. Copy that
-      script to another location (and preferably another name) 
-      and add the applications crypto, public_key and SSL with their current version numbers
-      after the STDLIB application.</p>
-    <p>An example .rel file with SSL added may look like this:</p>
+      <p>The simplest boot script possible includes only the Kernel 
+      and STDLIB applications. Such a script is located in the 
+      <c>bin</c> directory of the Erlang distribution. The source for the 
+      script is found under the Erlang installation top directory under
+      <c><![CDATA[releases/<OTP version>/start_clean.rel]]></c>.</p>
+
+      <p>Do the following:</p>
+      <list type="bulleted">
+	<item><p>Copy that script to another location (and preferably another 
+      name).</p></item>
+        <item><p>Add the applications Crypto, Public Key, and 
+	SSL with their current version numbers after the 
+	STDLIB application.</p></item>
+      </list>
 
+    <p>The following shows an example <c>.rel</c> file with SSL 
+    added:</p>
     <code type="none">
       {release, {"OTP  APN 181 01","R15A"}, {erts, "5.9"},
       [{kernel,"2.15"},
@@ -94,23 +101,29 @@
       ]}.
    </code>
 
-   <p>Note that the version numbers surely will differ in your system.
-   Whenever one of the applications included in the script is
-   upgraded, the script has to be changed.</p>
-   <p>Assuming the above .rel file is stored in a file
-   <c>start_ssl.rel</c> in the current directory, a boot script
-   can be built like this:</p>
+   <p>The version numbers differ in your system. Whenever one of the 
+   applications included in the script is upgraded, change the script.</p>
 
+      <p>Do the following:</p>
+      <list type="bulleted">
+	<item><p>Build the boot script.</p>
+	<p>Assuming the <c>.rel file</c> is stored in a file
+	<c>start_ssl.rel</c> in the current directory, a boot script
+	can be built as follows:</p></item>
+      </list>
    <code type="none">
    1> systools:make_script("start_ssl",[]).    </code>
 
-   <p>There will now be a file <c>start_ssl.boot</c> in the current
-   directory. To test the boot script, start Erlang with the
-   <c>-boot</c> command line parameter specifying this boot script
-   (with its full path but without the <c>.boot</c> suffix), in
-   Unix it could look like this:</p>
-   <p></p>
+   <p>There is now a <c>start_ssl.boot</c> file in the current
+   directory.</p>
 
+   <p>Do the following:</p>
+   <list type="bulleted">
+     <item><p>Test the boot script. To do this, start Erlang with the
+     <c>-boot</c> command-line parameter specifying this boot script
+     (with its full path, but without the <c>.boot</c> suffix). In
+     UNIX it can look as follows:</p></item>
+   </list>
    <code type="none"><![CDATA[
 $ erl -boot /home/me/ssl/start_ssl
 Erlang (BEAM) emulator version 5.0
@@ -118,86 +131,99 @@ Erlang (BEAM) emulator version 5.0
 Eshell V5.0  (abort with ^G)
 1> whereis(ssl_manager).
 <0.41.0>    ]]></code>
-    <p>The <c>whereis</c> function call verifies that the SSL
-      application is really started.</p>
 
-      <p>As an alternative to building a bootscript, one can explicitly
+    <p>The <c>whereis</c> function-call verifies that the SSL 
+      application is started.</p>
+
+      <p>As an alternative to building a bootscript, you can explicitly
       add the path to the SSL <c>ebin</c> directory on the command
-      line. This is done with the command line option <c>-pa</c>. This
+      line. This is done with command-line option <c>-pa</c>. This
       works as the SSL application does not need to be started for the
       distribution to come up, as a clone of the SSL application is
-      hooked into the kernel application, so as long as the
-      SSL applications code can be reached, the distribution will
-      start. The <c>-pa</c> method is only recommended for testing
-      purposes.</p>
+      hooked into the Kernel application. So, as long as the
+      SSL application code can be reached, the distribution starts. 
+      The <c>-pa</c> method is only recommended for testing purposes.</p>
 
-      <note><p>Note that the clone of the SSL application is necessary to
+      <note><p>The clone of the SSL application must
       enable the use of the SSL code in such an early bootstage as
-      needed to setup the distribution, however this will make it
+      needed to set up the distribution. However, this makes it
       impossible to soft upgrade the SSL application.</p></note>
   </section>
 
   <section>
-    <title>Specifying distribution module for net_kernel</title>
+    <title>Specifying Distribution Module for net_kernel</title>
     <p>The distribution module for SSL is named <c>inet_tls_dist</c>
-      and is specified on the command line with the <c>-proto_dist</c>
-      option. The argument to <c>-proto_dist</c> should be the module
-      name without the <c>_dist</c> suffix, so this distribution
+      and is specified on the command line with option <c>-proto_dist</c>.
+      The argument to <c>-proto_dist</c> is to be the module
+      name without suffix <c>_dist</c>. So, this distribution
       module is specified with <c>-proto_dist inet_tls</c> on the
       command line.</p>
-    <p></p>
 
-    <p>Extending the command line from above gives us the following:</p>
+    <p>Extending the command line gives the following:</p>
     <code type="none">
 $ erl -boot /home/me/ssl/start_ssl -proto_dist inet_tls    </code>
 
-<p>For the distribution to actually be started, we need to give
-the emulator a name as well:</p>
+<p>For the distribution to be started, give the emulator a name as well:</p>
     <code type="none">
 $ erl -boot /home/me/ssl/start_ssl -proto_dist inet_tls -sname ssl_test
 Erlang (BEAM) emulator version 5.0 [source]
  
 Eshell V5.0  (abort with ^G)
 (ssl_test@myhost)1>     </code>
-    <p>Note however that a node started in this way will refuse to talk
-      to other nodes, as no ssl parameters are supplied
-      (see below).</p>
+
+    <p>However, a node started in this way refuses to talk
+      to other nodes, as no SSL parameters are supplied
+      (see the next section).</p>
   </section>
 
   <section>
-    <title>Specifying SSL options</title> <p>For SSL to work, at least
-    a public key and certificate needs to be specified for the server
-    side.  In the following example the PEM-files consists of two
-    entries the servers certificate and its private key.</p>
-
-    <p>On the <c>erl</c> command line one can specify options that the
-    SSL distribution will add when creating a socket.</p>
-
-    <p>One can specify the simpler SSL options certfile, keyfile,
-    password, cacertfile, verify, reuse_sessions,
-    secure_renegotiate, depth, hibernate_after and ciphers (use old
-    string format) by adding the prefix server_ or client_ to the
-    option name. The server can also take the options dhfile and
-    fail_if_no_peer_cert (also prefixed).
-    <c>client_</c>-prfixed options are used when the distribution initiates a
-    connection to another node and the <c>server_</c>-prefixed options are used
-    when accepting a connection from a remote node. </p>
-
-    <p> More complex options such as verify_fun are not available at
-    the moment but a mechanism to handle such options may be added in
-    a future release. </p>
-
-    <p> Raw socket options such as packet and size must not be specified on
-    the command line</p>.
-
-    <p>The command line argument for specifying the SSL options is named
-    <c>-ssl_dist_opt</c> and should be followed by pairs of
-    SSL options and their values. The <c>-ssl_dist_opt</c> argument can
+    <title>Specifying SSL Options</title>
+    <p>For SSL to work, at least
+    a public key and a certificate must be specified for the server
+    side. In the following example, the PEM-files consist of two
+    entries, the server certificate and its private key.</p>
+
+    <p>On the <c>erl</c> command line you can specify options that the
+    SSL distribution adds when creating a socket.</p>
+
+    <p>The simplest SSL options in the following list can be specified 
+    by adding the 
+    prefix <c>server_</c> or <c>client_</c> to the option name:</p>
+    <list type="bulleted">
+      <item><c>certfile</c></item>
+      <item><c>keyfile</c></item>
+      <item><c>password</c></item>
+      <item><c>cacertfile</c></item>
+      <item><c>verify</c></item>
+      <item><c>reuse_sessions</c></item>
+      <item><c>secure_renegotiate</c></item>
+      <item><c>depth</c></item>
+      <item><c>hibernate_after</c></item>
+      <item><c>ciphers</c> (use old string format)</item>
+    </list>
+
+    <p>The server can also take the options <c>dhfile</c> and
+    <c>fail_if_no_peer_cert</c> (also prefixed).</p>
+
+    <p><c>client_</c>-prefixed options are used when the distribution 
+    initiates a connection to another node. <c>server_</c>-prefixed 
+    options are used when accepting a connection from a remote node.</p>
+
+    <p>More complex options, such as <c>verify_fun</c>, are currently not 
+    available, but a mechanism to handle such options may be added in
+    a future release.</p>
+
+    <p>Raw socket options, such as <c>packet</c> and <c>size</c> must not 
+    be specified on the command line.</p>
+
+    <p>The command-line argument for specifying the SSL options is named
+    <c>-ssl_dist_opt</c> and is to be followed by pairs of
+    SSL options and their values. Argument <c>-ssl_dist_opt</c> can
     be repeated any number of times.</p>
 
-      <p>An example command line would now look something like this
+      <p>An example command line can now look as follows
       (line breaks in the command are for readability, 
-      they should not be there when typed):</p>
+      and are not be there when typed):</p>
     <code type="none">
 $ erl -boot /home/me/ssl/start_ssl -proto_dist inet_tls
   -ssl_dist_opt server_certfile "/home/me/ssl/erlserver.pem" 
@@ -207,20 +233,20 @@ Erlang (BEAM) emulator version 5.0 [source]
  
 Eshell V5.0  (abort with ^G)
 (ssl_test@myhost)1>     </code>
-    <p>A node started in this way will be fully functional, using SSL
+    <p>A node started in this way is fully functional, using SSL
       as the distribution protocol.</p>
   </section>
 
   <section>
-    <title>Setting up environment to always use SSL</title>
-    <p>A convenient way to specify arguments to Erlang is to use the
-      <c>ERL_FLAGS</c> environment variable. All the flags needed to
-      use SSL distribution can be specified in that variable and will
-      then be interpreted as command line arguments for all
+    <title>Setting up Environment to Always Use SSL</title>
+    <p>A convenient way to specify arguments to Erlang is to use environment 
+      variable <c>ERL_FLAGS</c>. All the flags needed to
+      use the SSL distribution can be specified in that variable and are
+      then interpreted as command-line arguments for all
       subsequent invocations of Erlang.</p>
-    <p></p>
-    <p>In a Unix (Bourne) shell it could look like this (line breaks for
-      readability, they should not be there when typed):</p>
+
+    <p>In a Unix (Bourne) shell, it can look as follows (line breaks are for
+      readability, they are not to be there when typed):</p>
     <code type="none">
 $ ERL_FLAGS="-boot /home/me/ssl/start_ssl -proto_dist inet_tls
   -ssl_dist_opt server_certfile /home/me/ssl/erlserver.pem
@@ -240,7 +266,8 @@ Eshell V5.0  (abort with ^G)
  {ssl_dist_opt,["server_secure_renegotiate","true",
                 "client_secure_renegotiate","true"]
  {home,["/home/me"]}]    </code>
+
     <p>The <c>init:get_arguments()</c> call verifies that the correct
-      arguments are supplied to the emulator. </p>
+      arguments are supplied to the emulator.</p>
   </section>
 </chapter>
diff --git a/lib/ssl/doc/src/ssl_introduction.xml b/lib/ssl/doc/src/ssl_introduction.xml
new file mode 100644
index 0000000000..64607a393a
--- /dev/null
+++ b/lib/ssl/doc/src/ssl_introduction.xml
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!DOCTYPE chapter SYSTEM "chapter.dtd">
+
+<chapter>
+  <header>
+    <copyright>
+      <year>2015</year>
+      <year>2015</year>
+      <holder>Ericsson AB, All Rights Reserved</holder>
+    </copyright>
+    <legalnotice>
+  The contents of this file are subject to the Erlang Public License,
+  Version 1.1, (the "License"); you may not use this file except in
+  compliance with the License. You should have received a copy of the
+  Erlang Public License along with this software. If not, it can be
+  retrieved online at http://www.erlang.org/.
+
+  Software distributed under the License is distributed on an "AS IS"
+  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+  the License for the specific language governing rights and limitations
+  under the License.
+
+  The Initial Developer of the Original Code is Ericsson AB.
+    </legalnotice>
+
+    <title>Introduction</title>
+    <prepared>OTP team</prepared>
+    <docno></docno>
+    <date>2015-03-05</date>
+    <rev>A</rev>
+    <file>ssl_introduction.xml</file>
+  </header>
+
+  <section>
+    <title>Purpose</title>
+    <p>Transport Layer Security (TLS) and its predecessor, the Secure
+    Sockets Layer (SSL), are cryptographic protocols designed to
+    provide communications security over a computer network. The protocols use
+    use X.509 certificates and hence public key (asymmetric) cryptography to
+    authenticate the counterpart with whom they communicate,
+    and to exchange a symmetric key for payload encryption. The protocol provides
+    data/message confidentiality (encryption), integrity (through message authentication code checks)
+    and host verification (through certificate path validation).</p>
+  </section>
+
+  <section>
+    <title>Prerequisites</title>
+    <p>It is assumed that the reader is familiar with the Erlang
+    programming language, the concepts of OTP, and has a basic
+    understanding of SSL/TLS.</p>
+  </section>
+
+</chapter>
diff --git a/lib/ssl/doc/src/ssl_protocol.xml b/lib/ssl/doc/src/ssl_protocol.xml
index 80d9cc4ee8..cc49515066 100644
--- a/lib/ssl/doc/src/ssl_protocol.xml
+++ b/lib/ssl/doc/src/ssl_protocol.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2003</year><year>2013</year>
+      <year>2003</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -21,33 +21,42 @@
       
     </legalnotice>
 
-    <title>Transport Layer Security (TLS) and its predecessor, Secure Socket Layer (SSL)</title>
+    <title>TLS and its Predecessor, SSL</title>
+    <prepared></prepared>
+    <responsible></responsible>
+    <docno></docno>
+    <approved></approved>
+    <checked></checked>
+    <date></date>
+    <rev></rev>
     <file>ssl_protocol.xml</file>
   </header>
   
-  <p>The erlang SSL application currently implements the protocol SSL/TLS
-  for currently supported versions see <seealso marker="ssl">ssl(3)</seealso>
+  <p>The Erlang SSL application implements the SSL/TLS protocol
+  for the currently supported versions,  see the
+  <seealso marker="ssl">ssl(3)</seealso> manual page.
   </p>
 
-  <p>By default erlang SSL is run over the TCP/IP protocol even
-  though you could plug in any other reliable transport protocol
-  with the same API as gen_tcp.</p>
+  <p>By default SSL/TLS is run over the TCP/IP protocol even
+  though you can plug in any other reliable transport protocol
+  with the same Application Programming Interface (API) as the
+  <c>gen_tcp</c> module in Kernel.</p>
   
-  <p>If a client and server wants to use an upgrade mechanism, such as
-  defined by RFC2817, to upgrade a regular TCP/IP connection to an SSL
-  connection the erlang SSL API supports this. This can be useful for
-  things such as supporting HTTP and HTTPS on the same port and
+  <p>If a client and a server wants to use an upgrade mechanism, such as
+  defined by RFC 2817, to upgrade a regular TCP/IP connection to an SSL
+  connection, this is supported by the Erlang SSL application API. This can be 
+  useful for, for example, supporting HTTP and HTTPS on the same port and
   implementing virtual hosting.
   </p>
 
   <section>
-    <title>Security overview</title>
+    <title>Security Overview</title>
       
-   <p>To achieve authentication and privacy the client and server will
-    perform a TLS Handshake procedure before transmitting or receiving
-    any data. During the handshake they agree on a protocol version and
-    cryptographic algorithms, they generate shared secrets using public
-    key cryptographics and optionally authenticate each other with
+   <p>To achieve authentication and privacy, the client and server
+    perform a TLS handshake procedure before transmitting or receiving
+    any data. During the handshake, they agree on a protocol version and
+    cryptographic algorithms, generate shared secrets using public
+    key cryptographies, and optionally authenticate each other with
     digital certificates.</p>
   </section>
   
@@ -55,20 +64,21 @@
     <title>Data Privacy and Integrity</title>
     
     <p>A <em>symmetric key</em> algorithm has one key only. The key is
-    used for both encryption and decryption. These algorithms are fast
-    compared to public key algorithms (using two keys, a public and a
-    private one) and are therefore typically used for encrypting bulk
+    used for both encryption and decryption. These algorithms are fast,
+    compared to public key algorithms (using two keys, one public and one
+    private) and are therefore typically used for encrypting bulk
     data.
     </p>
     
     <p>The keys for the symmetric encryption are generated uniquely
     for each connection and are based on a secret negotiated
-    in the TLS handshake. </p>
+    in the TLS handshake.</p>
     
-   <p>The TLS handshake protocol and data transfer is run on top of
-    the TLS Record Protocol that uses a keyed-hash MAC (Message
-    Authenticity Code), or HMAC, to protect the message's data
-    integrity. From the TLS RFC "A Message Authentication Code is a
+    <p>The TLS handshake protocol and data transfer is run on top of
+    the TLS Record Protocol, which uses a keyed-hash Message
+    Authenticity Code (MAC), or a Hash-based MAC (HMAC),
+    to protect the message data
+    integrity. From the TLS RFC: "A Message Authentication Code is a
     one-way hash computed from a message and some secret data. It is
     difficult to forge without knowing the secret data. Its purpose is
     to detect if the message has been altered."
@@ -82,40 +92,43 @@
      passport. The holder of the certificate is called the
      <em>subject</em>. The certificate is signed 
      with the private key of the issuer of the certificate. A chain
-     of trust is build by having the issuer in its turn being
-     certified by another certificate and so on until you reach the
-     so called root certificate that is self signed i.e. issued
+     of trust is built by having the issuer in its turn being
+     certified by another certificate, and so on, until you reach the
+     so called root certificate, which is self-signed, that is, issued
      by itself.</p>
      
-     <p>Certificates are issued by <em>certification
-     authorities</em> (<em>CA</em>s) only.  There are a handful of
-     top CAs in the world that issue root certificates. You can
-     examine the certificates of several of them by clicking
+     <p>Certificates are issued by Certification Authorities (CAs) only. 
+     A handful of top CAs in the world issue root certificates. You can
+     examine several of these certificates by clicking
      through the menus of your web browser.
      </p>
    </section>
 	   
    <section>
-     <title>Authentication of Sender</title>
+     <title>Peer Authentication</title>
       
-     <p>Authentication of the sender is done by public key path
-     validation as defined in RFC 3280. Simplified that means that
-     each certificate in the certificate chain is issued by the one
-     before, the certificates attributes are valid ones, and the
-     root cert is a trusted cert that is present in the trusted
-     certs database kept by the peer.</p>
+     <p>Authentication of the peer is done by public key path
+     validation as defined in RFC 3280. This means basically 
+     the following:</p>
+     <list type="bulleted">
+       <item>Each certificate in the certificate chain is issued by the 
+       previous one.</item>
+       <item>The certificates attributes are valid.</item>
+       <item>The root certificate is a trusted certificate that is present 
+       in the trusted certificate database kept by the peer.</item>
+     </list>
      
-     <p>The server will always send a certificate chain as part of
-     the TLS handshake, but the client will only send one if
-     the server requests it. If the client does not have
-     an appropriate certificate it may send an "empty" certificate
+     <p>The server always sends a certificate chain as part of
+     the TLS handshake, but the client only sends one if requested
+     by the server. If the client does not have
+     an appropriate certificate, it can send an "empty" certificate
      to the server.</p>
      
-     <p>The client may choose to accept some path evaluation errors
-     for instance a web browser may ask the user if they want to
-     accept an unknown CA root certificate. The server, if it request
-     a certificate, will on the other hand not accept any path validation
-     errors. It is configurable if the server should accept
+     <p>The client can choose to accept some path evaluation errors,
+     for example, a web browser can ask the user whether to
+     accept an unknown CA root certificate. The server, if it requests
+     a certificate, does however not accept any path validation
+     errors. It is configurable if the server is to accept
      or reject an "empty" certificate as response to
      a certificate request.</p>
    </section>
@@ -123,25 +136,24 @@
    <section>
      <title>TLS Sessions</title>
      
-     <p>From the TLS RFC "A TLS session is an association between a
-     client and a server.  Sessions are created by the handshake
+     <p>From the TLS RFC: "A TLS session is an association between a
+     client and a server. Sessions are created by the handshake
      protocol. Sessions define a set of cryptographic security
      parameters, which can be shared among multiple
      connections. Sessions are used to avoid the expensive negotiation
      of new security parameters for each connection."</p>
 
      <p>Session data is by default kept by the SSL application in a
-     memory storage hence session data will be lost at application
-     restart or takeover. Users may define their own callback module
+     memory storage, hence session data is lost at application
+     restart or takeover. Users can define their own callback module
      to handle session data storage if persistent data storage is
-     required. Session data will also be invalidated after 24 hours
-     from it was saved, for security reasons. It is of course
-     possible to configure the amount of time the session data should be
-     saved.</p>
+     required. Session data is also invalidated after 24 hours
+     from it was saved, for security reasons. The amount of time the 
+     session data is to be saved can be configured.</p>
 
-     <p>SSL clients will by default try to reuse an available session,
-     SSL servers will by default agree to reuse sessions when clients
-     ask to do so.</p>
+     <p>By default the SSL clients try to reuse an available session and 
+     by default the SSL servers agree to reuse sessions when clients
+     ask for it.</p>
 
    </section>
  </chapter>
diff --git a/lib/ssl/doc/src/ssl_session_cache_api.xml b/lib/ssl/doc/src/ssl_session_cache_api.xml
index 82de1784ca..28b5f4ce23 100644
--- a/lib/ssl/doc/src/ssl_session_cache_api.xml
+++ b/lib/ssl/doc/src/ssl_session_cache_api.xml
@@ -4,7 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>1999</year><year>2013</year>
+      <year>1999</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -21,42 +21,54 @@
 
     </legalnotice>
     <title>ssl</title>
+    <prepared></prepared>
+    <docno></docno>
+    <date></date>
+    <rev></rev>
     <file>ssl_session_cache_api.xml</file>
   </header>
   <module>ssl_session_cache_api</module>
-  <modulesummary>Defines the API for the TLS session cache so
-    that the data storage scheme can be replaced by
-    defining a new callback module implementing this API.</modulesummary>
+  <modulesummary>TLS session cache API</modulesummary>
 
+  <description>Defines the API for the TLS session cache so
+    that the data storage scheme can be replaced by
+    defining a new callback module implementing this API.</description>
   <section>
-    <title>Common Data Types</title>
+    <title>DATA TYPES</title>
 
-    <p>The following data types are used in the functions below:
-    </p>
+    <p>The following data types are used in the functions for
+    <c>ssl_session_cache_api</c>:</p>
 
-    <p><c>cache_ref() = opaque()</c></p> 
-    
-    <p><c>key() = {partialkey(), session_id()}</c></p>
-    
-    <p><c>partialkey() = opaque()</c></p>
-    
-    <p><c>session_id() = binary()</c></p>
+    <taglist>
+      <tag><c>cache_ref() =</c></tag>
+      <item><p><c>opaque()</c></p></item>
+
+      <tag><c>key() =</c></tag>
+      <item><p><c>{partialkey(), session_id()}</c></p></item>
+
+      <tag><c>partialkey() =</c></tag>
+      <item><p><c>opaque()</c></p></item>
+
+      <tag><c>session_id() =</c></tag>
+      <item><p><c>binary()</c></p></item>
+
+      <tag><c>session()</c> =</tag>
+      <item><p><c>opaque()</c></p></item>
+    </taglist>
 
-    <p><c>session() = opaque()</c></p>
-    
   </section>
   
   <funcs>   
 
     <func>
       <name>delete(Cache, Key) -> _</name>
-      <fsummary></fsummary>
+      <fsummary>Deletes a cache entry.</fsummary>
       <type>
-	<v> Cache = cache_ref()</v>
-	<v> Key  = key()</v>
+	<v>Cache = cache_ref()</v>
+	<v>Key = key()</v>
       </type>
       <desc>
-	<p> Deletes a cache entry. Will only be called from the cache
+	<p>Deletes a cache entry. Is only called from the cache
 	handling process.
 	</p>
       </desc>
@@ -69,41 +81,50 @@
 	<v></v>
       </type>
       <desc>
-	<p>Calls Fun(Elem, AccIn) on successive elements of the
-	cache, starting with AccIn == Acc0. Fun/2 must return a new
-	accumulator which is passed to the next call. The function returns
-	the final value of the accumulator. Acc0 is returned if the cache is
-	empty. 
+	<p>Calls <c>Fun(Elem, AccIn)</c> on successive elements of the
+	cache, starting with <c>AccIn == Acc0</c>. <c>Fun/2</c> must
+	return a new accumulator, which is passed to the next call.
+	The function returns the final value of the accumulator.
+	<c>Acc0</c> is returned if the cache is empty.
 	</p>
       </desc>
     </func>
 
     <func>
-      <name>init() -> opaque() </name>
-      <fsummary>Return cache reference</fsummary>
+      <name>init(Args) -> opaque() </name>
+      <fsummary>Returns cache reference.</fsummary>
       <type>
-	<v></v>
+	<v>Args = proplists:proplist()</v>
       </type>
       <desc>
+	<p>Includes property <c>{role, client | server}</c>.
+	Currently this is the only predefined property,
+	there can also be user-defined properties. See also
+	application environment variable
+	<seealso marker="ssl_app">session_cb_init_args</seealso>.
+	</p>
 	<p>Performs possible initializations of the cache and returns
-	a reference to it that will be used as parameter to the other
-	api functions. Will be called by the cache handling processes
-	init function, hence putting the same requirements on it as
-	a normal process init function.
+	a reference to it that is used as parameter to the other
+	API functions. Is called by the cache handling processes
+	<c>init</c> function, hence putting the same requirements on it
+	as a normal process <c>init</c> function. This function is
+	called twice when starting the SSL application, once with
+	the role client and once with the role server, as the SSL
+	application must be prepared to take on both roles.
 	</p>
       </desc>
     </func>
 
     <func>
       <name>lookup(Cache, Key) -> Entry</name>
-      <fsummary> Looks up a cache entry.</fsummary>
+      <fsummary>Looks up a cache entry.</fsummary>
       <type>
-	<v> Cache = cache_ref()</v>
-	<v> Key  = key()</v>
-	<v> Entry = session() | undefined </v>
+	<v>Cache = cache_ref()</v>
+	<v>Key = key()</v>
+	<v>Entry = session() | undefined</v>
       </type>
       <desc>
-	<p>Looks up a cache entry. Should be callable from any
+	<p>Looks up a cache entry. Is to be callable from any
          process.
          </p>
       </desc>
@@ -111,14 +132,14 @@
     
     <func>
       <name>select_session(Cache, PartialKey) -> [session()]</name>
-      <fsummary>>Selects sessions that could be reused.</fsummary>
+      <fsummary>Selects sessions that can be reused.</fsummary>
       <type>
-	<v> Cache = cache_ref()</v>
-	<v> PartialKey = partialkey()</v>
-	<v> Session = session()</v>
+	<v>Cache = cache_ref()</v>
+	<v>PartialKey = partialkey()</v>
+	<v>Session = session()</v>
       </type>
       <desc>
-	<p>Selects sessions that could be reused. Should be callable
+	<p>Selects sessions that can be reused. Is to be callable
 	from any process.
 	</p>
       </desc>
@@ -129,7 +150,7 @@
       <fsummary>Called by the process that handles the cache when it
       is about to terminate.</fsummary>
       <type>
-	<v>Cache = term()  - as returned by init/0</v>
+	<v>Cache = term() - as returned by init/0</v>
       </type>
       <desc>
 	<p>Takes care of possible cleanup that is needed when the
@@ -140,15 +161,15 @@
 
     <func>
       <name>update(Cache, Key, Session) -> _</name>
-      <fsummary> Caches a new session or updates a already cached one.</fsummary>
+      <fsummary>Caches a new session or updates an already cached one.</fsummary>
       <type>
-	<v> Cache = cache_ref()</v>
-	<v> Key  = key()</v>
-	<v> Session = session()</v>
+	<v>Cache = cache_ref()</v>
+	<v>Key = key()</v>
+	<v>Session = session()</v>
       </type>
       <desc>
-	<p> Caches a new session or updates a already cached one. Will
-	only be called from the cache handling process.
+	<p>Caches a new session or updates an already cached one. Is
+	only called from the cache handling process.
 	</p>
       </desc>
     </func>
diff --git a/lib/ssl/doc/src/usersguide.xml b/lib/ssl/doc/src/usersguide.xml
index b1c7190085..6fce022507 100644
--- a/lib/ssl/doc/src/usersguide.xml
+++ b/lib/ssl/doc/src/usersguide.xml
@@ -23,14 +23,17 @@
 
     <title>SSL User's Guide</title>
     <prepared>OTP Team</prepared>
+    <docno></docno>
     <date>2003-05-26</date>
+    <rev></rev>
     <file>usersguide.sgml</file>
   </header>
   <description>
-    <p>The <em>SSL</em> application provides secure communication over
+    <p>The Secure Socket Layer (SSL) application provides secure communication over
       sockets.
       </p>
   </description>
+  <xi:include href="ssl_introduction.xml"/>
   <xi:include href="ssl_protocol.xml"/>
   <xi:include href="using_ssl.xml"/>
   <xi:include href="ssl_distribution.xml"/>
diff --git a/lib/ssl/doc/src/using_ssl.xml b/lib/ssl/doc/src/using_ssl.xml
index cce388d02a..dbbc1aa9d3 100644
--- a/lib/ssl/doc/src/using_ssl.xml
+++ b/lib/ssl/doc/src/using_ssl.xml
@@ -21,126 +21,131 @@
     
     </legalnotice>
 
-    <title>Using the SSL API</title>
+    <title>Using SSL API</title>
+    <prepared></prepared>
+    <responsible></responsible>
+    <docno></docno>
+    <approved></approved>
+    <checked></checked>
+    <date></date>
+    <rev></rev>
     <file>using_ssl.xml</file>
   </header>
-
-  <section>
-    <title>General information</title>
-    <p>To see relevant version information for ssl you can
-    call ssl:versions/0</p>
+  <p>To see relevant version information for ssl, call
+  <seealso marker="ssl:ssl#versions-0"><c>ssl:versions/0</c></seealso>
+  .</p>
     
-    <p>To see all supported cipher suites 
-    call ssl:cipher_suites/0. Note that available cipher suites
-    for a connection will depend on your certificate. It is also
-    possible to specify a specific cipher suite(s) that you
-    want your connection to use. Default is to use the  strongest
-    available.</p>
-
-  </section>
+  <p>To see all supported cipher suites, call  <seealso marker="ssl:ssl#cipher_suites-1"><c>ssl:cipher_suites(all)</c> </seealso>. 
+  The available cipher suites for a connection depend on your certificate. 
+  Specific cipher suites that you want your connection to use can also be 
+  specified. Default is to use the strongest available.</p>
   
   <section>
-    <title>Setting up connections</title>
+    <title>Setting up Connections</title>
     
-    <p>Here follows some small example of how to set up client/server connections
-    using the erlang shell. The returned value of the sslsocket has been abbreviated with
-    <c>[...]</c> as it can be fairly large and is opaque.</p>
+    <p>This section shows a small example of how to set up client/server connections
+    using the Erlang shell. The returned value of the <c>sslsocket</c> is abbreviated
+    with <c>[...]</c> as it can be fairly large and is opaque.</p>
     
     <section>
-      <title>Minmal example</title>
+      <title>Minimal Example</title>
       
-      <note><p> The minimal setup is not the  most secure setup of ssl.</p>    
+      <note><p> The minimal setup is not the most secure setup of SSL.</p>    
       </note>
-      
-      <p> Start server side</p>
+
+      <p>To set up client/server connections:</p>
+
+      <p><em>Step 1:</em> Start the server side:</p>
       <code type="erl">1 server> ssl:start().
 ok</code>
       
-      <p>Create an ssl listen socket</p>
+      <p><em>Step 2:</em> Create an SSL listen socket:</p>
       <code type="erl">2 server> {ok, ListenSocket} =
 ssl:listen(9999, [{certfile, "cert.pem"}, {keyfile, "key.pem"},{reuseaddr, true}]).
 {ok,{sslsocket, [...]}}</code>
       
-      <p>Do a transport accept on the ssl listen socket</p>
+      <p><em>Step 3:</em> Do a transport accept on the SSL listen socket:</p>
       <code type="erl">3 server> {ok, Socket} = ssl:transport_accept(ListenSocket).
 {ok,{sslsocket, [...]}}</code>
 
-      <p>Start client side</p>
+      <p><em>Step 4:</em> Start the client side:</p>
       <code type="erl">1 client> ssl:start().
 ok</code>
       
       <code type="erl">2 client> {ok, Socket} = ssl:connect("localhost", 9999,  [], infinity).
 {ok,{sslsocket, [...]}}</code>
       
-      <p>Do the ssl handshake</p>
+      <p><em>Step 5:</em> Do the SSL handshake:</p>
       <code type="erl">4 server> ok = ssl:ssl_accept(Socket).
 ok</code>
       
-      <p>Send a messag over ssl</p>
+      <p><em>Step 6:</em> Send a message over SSL:</p>
       <code type="erl">5 server> ssl:send(Socket, "foo").
 ok</code>
       
-      <p>Flush the shell message queue to see that we got the message
-      sent on the server side</p>
+      <p><em>Step 7:</em> Flush the shell message queue to see that the message
+      was sent on the server side:</p>
       <code type="erl">3 client> flush().
 Shell got {ssl,{sslsocket,[...]},"foo"}
 ok</code>
     </section>
     
     <section>
-      <title>Upgrade example</title>
+      <title>Upgrade Example</title>
       
-      <note><p> To upgrade a TCP/IP connection to an ssl connection the
-      client and server have to aggre to do so. Agreement
-      may be accompliced by using a protocol such the one used by HTTP
-      specified in RFC 2817.</p> </note>
+      <note><p>To upgrade a TCP/IP connection to an SSL connection, the
+      client and server must agree to do so. The agreement
+      can be accomplished by using a protocol, for example, the one used by HTTP
+      specified in RFC 2817.</p></note>
+
+      <p>To upgrade to an SSL connection:</p>
       
-      <p>Start server side</p>
+      <p><em>Step 1:</em> Start the server side:</p>
       <code type="erl">1 server> ssl:start().
 ok</code>
       
-      <p>Create a normal tcp listen socket</p>
+      <p><em>Step 2:</em> Create a normal TCP listen socket:</p>
       <code type="erl">2 server> {ok, ListenSocket} = gen_tcp:listen(9999, [{reuseaddr, true}]).
 {ok, #Port&lt;0.475&gt;}</code>
       
-      <p>Accept client connection</p>
+      <p><em>Step 3:</em> Accept client connection:</p>
       <code type="erl">3 server> {ok, Socket} = gen_tcp:accept(ListenSocket).
 {ok, #Port&lt;0.476&gt;}</code>
       
-      <p>Start client side</p>
+      <p><em>Step 4:</em> Start the client side:</p>
       <code type="erl">1 client> ssl:start().
 ok</code>
       
       <code type="erl">2 client> {ok, Socket} = gen_tcp:connect("localhost", 9999,  [], infinity).</code>
       
-      <p>Make sure active is set to false before trying
-      to upgrade a connection to an ssl connection, otherwhise
-      ssl handshake messages may be deliverd to the wrong process.</p>
+      <p><em>Step 5:</em> Ensure <c>active</c> is set to <c>false</c> before trying
+      to upgrade a connection to an SSL connection, otherwise
+      SSL handshake messages can be delivered to the wrong process:</p>
       <code type="erl">4 server> inet:setopts(Socket, [{active, false}]).
 ok</code>
       
-      <p>Do the ssl handshake.</p>
+      <p><em>Step 6:</em> Do the SSL handshake:</p>
       <code type="erl">5 server> {ok, SSLSocket} = ssl:ssl_accept(Socket, [{cacertfile, "cacerts.pem"},
 {certfile, "cert.pem"}, {keyfile, "key.pem"}]).
 {ok,{sslsocket,[...]}}</code>
       
-      <p> Upgrade to an ssl connection. Note that the client and server
-      must agree upon the upgrade and the server must call
-      ssl:accept/2 before the client calls ssl:connect/3.</p>
+      <p><em>Step 7:</em> Upgrade to an SSL connection. The client and server
+      must agree upon the upgrade. The server must call
+      <c>ssl:accept/2</c> before the client calls <c>ssl:connect/3.</c></p>
       <code type="erl">3 client>{ok, SSLSocket} = ssl:connect(Socket, [{cacertfile, "cacerts.pem"},
 {certfile, "cert.pem"}, {keyfile, "key.pem"}], infinity).
 {ok,{sslsocket,[...]}}</code>
       
-      <p>Send a messag over ssl</p>
+      <p><em>Step 8:</em> Send a message over SSL:</p>
       <code type="erl">4 client> ssl:send(SSLSocket, "foo").
 ok</code>
       
-      <p>Set active true on the ssl socket</p>
+      <p><em>Step 9:</em> Set <c>active true</c> on the SSL socket:</p>
       <code type="erl">4 server> ssl:setopts(SSLSocket, [{active, true}]).
 ok</code>
       
-      <p>Flush the shell message queue to see that we got the message
-      sent on the client side</p>
+      <p><em>Step 10:</em> Flush the shell message queue to see that the message
+      was sent on the client side:</p>
       <code type="erl">5 server> flush().
 Shell got {ssl,{sslsocket,[...]},"foo"}
 ok</code>
diff --git a/lib/ssl/src/Makefile b/lib/ssl/src/Makefile
index 0c00a650b9..d71d3fc445 100644
--- a/lib/ssl/src/Makefile
+++ b/lib/ssl/src/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 1999-2014. All Rights Reserved.
+# Copyright Ericsson AB 1999-2015. All Rights Reserved.
 #
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
@@ -38,7 +38,8 @@ RELSYSDIR = $(RELEASE_PATH)/lib/ssl-$(VSN)
 # ----------------------------------------------------
 
 BEHAVIOUR_MODULES= \
-        ssl_session_cache_api
+        ssl_session_cache_api \
+	ssl_crl_cache_api
 
 MODULES= \
 	ssl \
@@ -65,6 +66,8 @@ MODULES= \
 	ssl_manager \
 	ssl_session \
 	ssl_session_cache \
+	ssl_crl\
+	ssl_crl_cache \
 	ssl_socket \
 	ssl_listen_tracker_sup \
 	tls_record \
@@ -164,5 +167,5 @@ $(EBIN)/ssl_session_cache.$(EMULATOR):  ssl_internal.hrl ssl_handshake.hrl
 $(EBIN)/ssl_session_cache_api.$(EMULATOR):  ssl_internal.hrl ssl_handshake.hrl
 $(EBIN)/ssl_ssl3.$(EMULATOR): ssl_internal.hrl ssl_record.hrl ssl_cipher.hrl
 $(EBIN)/ssl_tls1.$(EMULATOR): ssl_internal.hrl ssl_record.hrl ssl_cipher.hrl
-
+$(EBIN)/ssl_cache.$(EMULATOR): ssl_cache.erl ssl_internal.hrl ../../public_key/include/public_key.hrl
 
diff --git a/lib/ssl/src/dtls_connection.erl b/lib/ssl/src/dtls_connection.erl
index 039495ef9e..0c73a49a04 100644
--- a/lib/ssl/src/dtls_connection.erl
+++ b/lib/ssl/src/dtls_connection.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2013-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2013-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -146,7 +146,7 @@ init([Role, Host, Port, Socket, {SSLOpts0, _} = Options,  User, CbInfo]) ->
     Handshake = ssl_handshake:init_handshake_history(),
     TimeStamp = calendar:datetime_to_gregorian_seconds({date(), time()}),
     try ssl_config:init(SSLOpts0, Role) of
-	{ok, Ref, CertDbHandle, FileRefHandle, CacheHandle, OwnCert, Key, DHParams} ->
+	{ok, Ref, CertDbHandle, FileRefHandle, CacheHandle,  CRLDbInfo, OwnCert, Key, DHParams} ->
 	    Session = State0#state.session,
 	    State = State0#state{
 		      tls_handshake_history = Handshake,
@@ -155,6 +155,7 @@ init([Role, Host, Port, Socket, {SSLOpts0, _} = Options,  User, CbInfo]) ->
 		      file_ref_db = FileRefHandle,
 		      cert_db_ref = Ref,
 		      cert_db = CertDbHandle,
+		      crl_db = CRLDbInfo,
 		      session_cache = CacheHandle,
 		      private_key = Key,
 		      diffie_hellman_params = DHParams},
@@ -227,9 +228,9 @@ hello(Hello,
     case dtls_handshake:hello(Hello, SslOptions, ConnectionStates0, Renegotiation) of
 	#alert{} = Alert ->
 	    handle_own_alert(Alert, ReqVersion, hello, State);
-	{Version, NewId, ConnectionStates, NextProtocol} ->
+	{Version, NewId, ConnectionStates, ProtoExt, Protocol} ->
 	    ssl_connection:handle_session(Hello, 
-					  Version, NewId, ConnectionStates, NextProtocol, State)
+					  Version, NewId, ConnectionStates, ProtoExt, Protocol, State)
     end;
 
 hello(Msg, State) ->
diff --git a/lib/ssl/src/dtls_handshake.erl b/lib/ssl/src/dtls_handshake.erl
index 31d525b295..30381df050 100644
--- a/lib/ssl/src/dtls_handshake.erl
+++ b/lib/ssl/src/dtls_handshake.erl
@@ -181,8 +181,8 @@ handle_server_hello_extensions(Version, SessionId, Random, CipherSuite,
 						      SslOpt, ConnectionStates0, Renegotiation) of
 	#alert{} = Alert ->
 	    Alert;
-	{ConnectionStates, Protocol} ->
-	    {Version, SessionId, ConnectionStates, Protocol}
+	{ConnectionStates, ProtoExt, Protocol} ->
+	    {Version, SessionId, ConnectionStates, ProtoExt, Protocol}
     end.
 
 dtls_fragment(Mss, MsgType, Len, MsgSeq, Bin, Offset, Acc)
diff --git a/lib/ssl/src/dtls_record.erl b/lib/ssl/src/dtls_record.erl
index ae35dd7ea4..59b3ddec5c 100644
--- a/lib/ssl/src/dtls_record.erl
+++ b/lib/ssl/src/dtls_record.erl
@@ -120,6 +120,26 @@ get_dtls_records_aux(Data, Acc) ->
     end.
 
 encode_plain_text(Type, Version, Data,
+		  #connection_states{current_write =
+					 #connection_state{
+					    epoch = Epoch,
+					    sequence_number = Seq,
+					    compression_state=CompS0,
+					    security_parameters=
+						#security_parameters{
+						   cipher_type = ?AEAD,
+						   compression_algorithm=CompAlg}
+					   }= WriteState0} = ConnectionStates) ->
+    {Comp, CompS1} = ssl_record:compress(CompAlg, Data, CompS0),
+    WriteState1 = WriteState0#connection_state{compression_state = CompS1},
+    AAD = calc_aad(Type, Version, Epoch, Seq),
+    {CipherFragment, WriteState} = ssl_record:cipher_aead(dtls_v1:corresponding_tls_version(Version),
+							  Comp, WriteState1, AAD),
+    CipherText = encode_tls_cipher_text(Type, Version, Epoch, Seq, CipherFragment),
+    {CipherText, ConnectionStates#connection_states{current_write =
+							WriteState#connection_state{sequence_number = Seq +1}}};
+
+encode_plain_text(Type, Version, Data,
 		  #connection_states{current_write=#connection_state{
 						      epoch = Epoch,
 						      sequence_number = Seq,
@@ -141,16 +161,44 @@ decode_cipher_text(#ssl_tls{type = Type, version = Version,
 			    sequence_number = Seq,
 			    fragment = CipherFragment} = CipherText,
 		   #connection_states{current_read =
-					  #connection_state{compression_state = CompressionS0,
-							    security_parameters = SecParams} = ReadState0}
-		   = ConnnectionStates0) ->
-    CompressAlg = SecParams#security_parameters.compression_algorithm,
+					  #connection_state{
+					     compression_state = CompressionS0,
+					     security_parameters=
+						 #security_parameters{
+						    cipher_type = ?AEAD,
+						    compression_algorithm=CompAlg}
+					    } = ReadState0}= ConnnectionStates0) ->
+    AAD = calc_aad(Type, Version, Epoch, Seq),
+    case ssl_record:decipher_aead(dtls_v1:corresponding_tls_version(Version),
+				  CipherFragment, ReadState0, AAD) of
+	{PlainFragment, ReadState1} ->
+	    {Plain, CompressionS1} = ssl_record:uncompress(CompAlg,
+							   PlainFragment, CompressionS0),
+	    ConnnectionStates = ConnnectionStates0#connection_states{
+				  current_read = ReadState1#connection_state{
+						   compression_state = CompressionS1}},
+	    {CipherText#ssl_tls{fragment = Plain}, ConnnectionStates};
+	#alert{} = Alert ->
+	    Alert
+    end;
+
+decode_cipher_text(#ssl_tls{type = Type, version = Version,
+			    epoch = Epoch,
+			    sequence_number = Seq,
+			    fragment = CipherFragment} = CipherText,
+		   #connection_states{current_read =
+					  #connection_state{
+					     compression_state = CompressionS0,
+					     security_parameters=
+						 #security_parameters{
+						    compression_algorithm=CompAlg}
+					    } = ReadState0}= ConnnectionStates0) ->
     {PlainFragment, Mac, ReadState1} = ssl_record:decipher(dtls_v1:corresponding_tls_version(Version),
 							   CipherFragment, ReadState0, true),
     MacHash = calc_mac_hash(ReadState1, Type, Version, Epoch, Seq, PlainFragment),
     case ssl_record:is_correct_mac(Mac, MacHash) of
 	true ->
-	    {Plain, CompressionS1} = ssl_record:uncompress(CompressAlg,
+	    {Plain, CompressionS1} = ssl_record:uncompress(CompAlg,
 							   PlainFragment, CompressionS0),
 	    ConnnectionStates = ConnnectionStates0#connection_states{
 				  current_read = ReadState1#connection_state{
@@ -368,3 +416,7 @@ calc_mac_hash(#connection_state{mac_secret = MacSecret,
 mac_hash(Version, MacAlg, MacSecret, SeqNo, Type, Length, Fragment) ->
     dtls_v1:mac_hash(Version, MacAlg, MacSecret, SeqNo, Type,
 		     Length, Fragment).
+
+calc_aad(Type, {MajVer, MinVer}, Epoch, SeqNo) ->
+    NewSeq = (Epoch bsl 48) + SeqNo,
+    <<NewSeq:64/integer, ?BYTE(Type), ?BYTE(MajVer), ?BYTE(MinVer)>>.
diff --git a/lib/ssl/src/ssl.app.src b/lib/ssl/src/ssl.app.src
index 36681e2897..be8ef6f85f 100644
--- a/lib/ssl/src/ssl.app.src
+++ b/lib/ssl/src/ssl.app.src
@@ -39,6 +39,10 @@
 	       ssl_manager,
 	       ssl_pkix_db,
 	       ssl_certificate,
+	       %% CRL handling
+	       ssl_crl,
+	       ssl_crl_cache, 
+	       ssl_crl_cache_api,
 	       %% App structure
 	       ssl_app,
 	       ssl_sup,
@@ -49,7 +53,7 @@
     {applications, [crypto, public_key, kernel, stdlib]},
     {env, []},
     {mod, {ssl_app, []}},
-    {runtime_dependencies, ["stdlib-2.0","public_key-0.22","kernel-3.0",
-			    "erts-6.0","crypto-3.3"]}]}.
+    {runtime_dependencies, ["stdlib-2.0","public_key-1.0","kernel-3.0",
+			    "erts-6.0","crypto-3.3", "inets-5.10.7"]}]}.
 
 
diff --git a/lib/ssl/src/ssl.appup.src b/lib/ssl/src/ssl.appup.src
index d100e41930..1476336039 100644
--- a/lib/ssl/src/ssl.appup.src
+++ b/lib/ssl/src/ssl.appup.src
@@ -1,16 +1,14 @@
 %% -*- erlang -*-
 {"%VSN%",
  [
-  {<<"6.0">>, [{load_module, ssl_handshake, soft_purge, soft_purge, []}]},
-  {<<"5\\.3\\.[1-7]($|\\..*)">>, [{restart_application, ssl}]},
-  {<<"5\\.[0-2]($|\\..*)">>, [{restart_application, ssl}]},
+  {<<"6\\..*">>, [{restart_application, ssl}]},
+  {<<"5\\..*">>, [{restart_application, ssl}]},
   {<<"4\\..*">>, [{restart_application, ssl}]},
   {<<"3\\..*">>, [{restart_application, ssl}]}
  ], 
  [
-  {<<"6.0">>, [{load_module, ssl_handshake, soft_purge, soft_purge, []}]},
-  {<<"5\\.3\\.[1-7]($|\\..*)">>, [{restart_application, ssl}]},
-  {<<"5\\.[0-2]($|\\..*)">>, [{restart_application, ssl}]},
+  {<<"6\\..*">>, [{restart_application, ssl}]},
+  {<<"5\\..*">>, [{restart_application, ssl}]},
   {<<"4\\..*">>, [{restart_application, ssl}]},
   {<<"3\\..*">>, [{restart_application, ssl}]}
  ]
diff --git a/lib/ssl/src/ssl.erl b/lib/ssl/src/ssl.erl
index a141426d75..f8ddfba7e3 100644
--- a/lib/ssl/src/ssl.erl
+++ b/lib/ssl/src/ssl.erl
@@ -38,9 +38,13 @@
 %% SSL/TLS protocol handling
 -export([cipher_suites/0, cipher_suites/1, suite_definition/1,
 	 connection_info/1, versions/0, session_info/1, format_error/1,
-	 renegotiate/1, prf/5, negotiated_next_protocol/1]).
+     renegotiate/1, prf/5, negotiated_protocol/1, negotiated_next_protocol/1,
+	 connection_information/1, connection_information/2]).
 %% Misc
--export([random_bytes/1]).
+-export([random_bytes/1, handle_options/2]).
+
+-deprecated({negotiated_next_protocol, 1, next_major_release}).
+-deprecated({connection_info, 1, next_major_release}).
 
 -include("ssl_api.hrl").
 -include("ssl_internal.hrl").
@@ -284,16 +288,42 @@ controlling_process(#sslsocket{pid = {Listen,
 				   is_pid(NewOwner) ->
     Transport:controlling_process(Listen, NewOwner).
 
+
+%%--------------------------------------------------------------------
+-spec connection_information(#sslsocket{}) -> {ok, list()} | {error, reason()}.
+%%
+%% Description: Return SSL information for the connection
+%%--------------------------------------------------------------------
+connection_information(#sslsocket{pid = Pid}) when is_pid(Pid) -> ssl_connection:connection_information(Pid);
+connection_information(#sslsocket{pid = {Listen, _}}) when is_port(Listen) -> {error, enotconn}.
+
+
+%%--------------------------------------------------------------------
+-spec connection_information(#sslsocket{}, [atom]) -> {ok, list()} | {error, reason()}.
+%%
+%% Description: Return SSL information for the connection
+%%--------------------------------------------------------------------
+connection_information(#sslsocket{} = SSLSocket, Items) -> 
+    case connection_information(SSLSocket) of
+        {ok, I} ->
+            {ok, lists:filter(fun({K, _}) -> lists:foldl(fun(K1, Acc) when K1 =:= K -> Acc +  1; (_, Acc) -> Acc end, 0, Items) > 0 end, I)};
+        E ->
+            E
+    end.
+
 %%--------------------------------------------------------------------
 -spec connection_info(#sslsocket{}) -> 	{ok, {tls_record:tls_atom_version(), ssl_cipher:erl_cipher_suite()}} |
 					{error, reason()}.
 %%
 %% Description: Returns ssl protocol and cipher used for the connection
 %%--------------------------------------------------------------------
-connection_info(#sslsocket{pid = Pid}) when is_pid(Pid) ->
-    ssl_connection:info(Pid);
-connection_info(#sslsocket{pid = {Listen, _}}) when is_port(Listen) ->
-    {error, enotconn}.
+connection_info(#sslsocket{} = SSLSocket) ->
+    case connection_information(SSLSocket) of
+        {ok, Result} ->
+            {ok, {proplists:get_value(protocol, Result), proplists:get_value(cipher_suite, Result)}};
+        Error ->
+            Error
+    end.
 
 %%--------------------------------------------------------------------
 -spec peername(#sslsocket{}) -> {ok, {inet:ip_address(), inet:port_number()}} | {error, reason()}.
@@ -330,13 +360,27 @@ suite_definition(S) ->
     {KeyExchange, Cipher, Hash}.
 
 %%--------------------------------------------------------------------
+-spec negotiated_protocol(#sslsocket{}) -> {ok, binary()} | {error, reason()}.
+%%
+%% Description: Returns the protocol that has been negotiated. If no
+%% protocol has been negotiated will return {error, protocol_not_negotiated}
+%%--------------------------------------------------------------------
+negotiated_protocol(#sslsocket{pid = Pid}) ->
+    ssl_connection:negotiated_protocol(Pid).
+
+%%--------------------------------------------------------------------
 -spec negotiated_next_protocol(#sslsocket{}) -> {ok, binary()} | {error, reason()}.
 %%
 %% Description: Returns the next protocol that has been negotiated. If no
 %% protocol has been negotiated will return {error, next_protocol_not_negotiated}
 %%--------------------------------------------------------------------
-negotiated_next_protocol(#sslsocket{pid = Pid}) ->
-    ssl_connection:negotiated_next_protocol(Pid).
+negotiated_next_protocol(Socket) ->
+    case negotiated_protocol(Socket) of
+        {error, protocol_not_negotiated} ->
+            {error, next_protocol_not_negotiated};
+        Res ->
+            Res
+    end.
 
 %%--------------------------------------------------------------------
 -spec cipher_suites(erlang | openssl | all) -> [ssl_cipher:erl_cipher_suite()] |
@@ -353,12 +397,8 @@ cipher_suites(openssl) ->
      || S <- ssl_cipher:filter_suites(ssl_cipher:suites(Version))];
 cipher_suites(all) ->
     Version = tls_record:highest_protocol_version([]),
-    Supported = ssl_cipher:all_suites(Version)
-	++ ssl_cipher:anonymous_suites()
-	++ ssl_cipher:psk_suites(Version)
-	++ ssl_cipher:srp_suites(),
-    ssl_cipher:filter_suites([suite_definition(S) || S <- Supported]).
-
+    ssl_cipher:filter_suites([suite_definition(S)
+			      || S <-ssl_cipher:all_suites(Version)]).
 cipher_suites() ->
     cipher_suites(erlang).
 
@@ -454,7 +494,7 @@ session_info(#sslsocket{pid = {Listen,_}}) when is_port(Listen) ->
 versions() ->
     Vsns = tls_record:supported_protocol_versions(),
     SupportedVsns = [tls_record:protocol_version(Vsn) || Vsn <- Vsns],
-    AvailableVsns = ?ALL_SUPPORTED_VERSIONS,
+    AvailableVsns = ?ALL_AVAILABLE_VERSIONS,
     %% TODO Add DTLS versions when supported
     [{ssl_app, ?VSN}, {supported, SupportedVsns}, {available, AvailableVsns}].
 
@@ -649,6 +689,10 @@ handle_options(Opts0) ->
 		    renegotiate_at = handle_option(renegotiate_at, Opts, ?DEFAULT_RENEGOTIATE_AT),
 		    hibernate_after = handle_option(hibernate_after, Opts, undefined),
 		    erl_dist = handle_option(erl_dist, Opts, false),
+		    alpn_advertised_protocols =
+			handle_option(alpn_advertised_protocols, Opts, undefined),
+		    alpn_preferred_protocols =
+			handle_option(alpn_preferred_protocols, Opts, undefined),
 		    next_protocols_advertised =
 			handle_option(next_protocols_advertised, Opts, undefined),
 		    next_protocol_selector =
@@ -656,10 +700,14 @@ handle_options(Opts0) ->
 			  handle_option(client_preferred_next_protocols, Opts, undefined)),
 		    log_alert = handle_option(log_alert, Opts, true),
 		    server_name_indication = handle_option(server_name_indication, Opts, undefined),
+		    sni_hosts = handle_option(sni_hosts, Opts, []),
+		    sni_fun = handle_option(sni_fun, Opts, undefined),
 		    honor_cipher_order = handle_option(honor_cipher_order, Opts, false),
 		    protocol = proplists:get_value(protocol, Opts, tls),
 		    padding_check =  proplists:get_value(padding_check, Opts, true),
-		    fallback =  proplists:get_value(fallback, Opts, false)
+		    fallback =  proplists:get_value(fallback, Opts, false),
+		    crl_check = handle_option(crl_check, Opts, false),
+		    crl_cache = handle_option(crl_cache, Opts, {ssl_crl_cache, {internal, []}})
 		   },
 
     CbInfo  = proplists:get_value(cb_info, Opts, {gen_tcp, tcp, tcp_closed, tcp_error}),
@@ -668,11 +716,12 @@ handle_options(Opts0) ->
 		  depth, cert, certfile, key, keyfile,
 		  password, cacerts, cacertfile, dh, dhfile,
 		  user_lookup_fun, psk_identity, srp_identity, ciphers,
-		  reuse_session, reuse_sessions, ssl_imp, cb_info,
-		  renegotiate_at, secure_renegotiate, client_renegotiation,
-		  hibernate_after, erl_dist, next_protocols_advertised,
+		  reuse_session, reuse_sessions, ssl_imp, client_renegotiation,
+		  cb_info, renegotiate_at, secure_renegotiate, hibernate_after,
+		  erl_dist, alpn_advertised_protocols, sni_hosts, sni_fun,
+		  alpn_preferred_protocols, next_protocols_advertised,
 		  client_preferred_next_protocols, log_alert,
-		  server_name_indication, honor_cipher_order, padding_check,
+		  server_name_indication, honor_cipher_order, padding_check, crl_check, crl_cache,
 		  fallback],
 
     SockOpts = lists:foldl(fun(Key, PropList) ->
@@ -686,6 +735,18 @@ handle_options(Opts0) ->
 		 inet_user = SockOpts, transport_info = CbInfo, connection_cb = ConnetionCb
 		}}.
 
+handle_option(sni_fun, Opts, Default) ->
+    OptFun = validate_option(sni_fun,
+                             proplists:get_value(sni_fun, Opts, Default)),
+    OptHosts = proplists:get_value(sni_hosts, Opts, undefined),
+    case {OptFun, OptHosts} of
+        {Default, _} ->
+            Default;
+        {_, undefined} ->
+            OptFun;
+        _ ->
+            throw({error, {conflict_options, [sni_fun, sni_hosts]}})
+    end;
 handle_option(OptionName, Opts, Default) ->
     validate_option(OptionName,
 		    proplists:get_value(OptionName, Opts, Default)).
@@ -808,6 +869,20 @@ validate_option(hibernate_after, Value) when is_integer(Value), Value >= 0 ->
     Value;
 validate_option(erl_dist,Value) when is_boolean(Value) ->
     Value;
+validate_option(Opt, Value)
+  when Opt =:= alpn_advertised_protocols orelse Opt =:= alpn_preferred_protocols,
+       is_list(Value) ->
+    case tls_record:highest_protocol_version([]) of
+	{3,0} ->
+	    throw({error, {options, {not_supported_in_sslv3, {Opt, Value}}}});
+	_ ->
+	    validate_binary_list(Opt, Value),
+	    Value
+    end;
+validate_option(Opt, Value)
+  when Opt =:= alpn_advertised_protocols orelse Opt =:= alpn_preferred_protocols,
+       Value =:= undefined ->
+    undefined;
 validate_option(client_preferred_next_protocols = Opt, {Precedence, PreferredProtocols} = Value)
   when is_list(PreferredProtocols) ->
     case tls_record:highest_protocol_version([]) of
@@ -851,15 +926,41 @@ validate_option(server_name_indication, disable) ->
     disable;
 validate_option(server_name_indication, undefined) ->
     undefined;
+validate_option(sni_hosts, []) ->
+    [];
+validate_option(sni_hosts, [{Hostname, SSLOptions} | Tail]) when is_list(Hostname) ->
+	RecursiveSNIOptions = proplists:get_value(sni_hosts, SSLOptions, undefined),
+	case RecursiveSNIOptions of
+		undefined ->
+			[{Hostname, validate_options(SSLOptions)} | validate_option(sni_hosts, Tail)];
+		_ ->
+			throw({error, {options, {sni_hosts, RecursiveSNIOptions}}})
+	end;
+validate_option(sni_fun, undefined) ->
+    undefined;
+validate_option(sni_fun, Fun) when is_function(Fun) ->
+    Fun;
 validate_option(honor_cipher_order, Value) when is_boolean(Value) ->
     Value;
 validate_option(padding_check, Value) when is_boolean(Value) ->
     Value;
 validate_option(fallback, Value) when is_boolean(Value) ->
     Value;
+validate_option(crl_check, Value) when is_boolean(Value)  ->
+    Value;
+validate_option(crl_check, Value) when (Value == best_effort) or (Value == peer) -> 
+    Value;
+validate_option(crl_cache, {Cb, {_Handle, Options}} = Value) when is_atom(Cb) and is_list(Options) ->
+    Value;
 validate_option(Opt, Value) ->
     throw({error, {options, {Opt, Value}}}).
 
+
+validate_options([]) ->
+	[];
+validate_options([{Opt, Value} | Tail]) ->
+	[{Opt, validate_option(Opt, Value)} | validate_options(Tail)].
+
 validate_npn_ordering(client) ->
     ok;
 validate_npn_ordering(server) ->
@@ -962,10 +1063,7 @@ binary_cipher_suites(Version, [{_,_,_}| _] = Ciphers0) ->
     binary_cipher_suites(Version, Ciphers);
 
 binary_cipher_suites(Version, [Cipher0 | _] = Ciphers0) when is_binary(Cipher0) ->
-    All = ssl_cipher:suites(Version)
-	++ ssl_cipher:anonymous_suites()
-	++ ssl_cipher:psk_suites(Version)
-	++ ssl_cipher:srp_suites(),
+    All = ssl_cipher:all_suites(Version),
     case [Cipher || Cipher <- Ciphers0, lists:member(Cipher, All)] of
 	[] ->
 	    %% Defaults to all supported suites that does
@@ -1135,6 +1233,10 @@ new_ssl_options([{client_renegotiation, Value} | Rest], #ssl_options{} = Opts, R
     new_ssl_options(Rest, Opts#ssl_options{client_renegotiation = validate_option(client_renegotiation, Value)}, RecordCB); 
 new_ssl_options([{hibernate_after, Value} | Rest], #ssl_options{} = Opts, RecordCB) -> 
     new_ssl_options(Rest, Opts#ssl_options{hibernate_after = validate_option(hibernate_after, Value)}, RecordCB);
+new_ssl_options([{alpn_advertised_protocols, Value} | Rest], #ssl_options{} = Opts, RecordCB) ->
+	new_ssl_options(Rest, Opts#ssl_options{alpn_advertised_protocols = validate_option(alpn_advertised_protocols, Value)}, RecordCB);
+new_ssl_options([{alpn_preferred_protocols, Value} | Rest], #ssl_options{} = Opts, RecordCB) ->
+	new_ssl_options(Rest, Opts#ssl_options{alpn_preferred_protocols = validate_option(alpn_preferred_protocols, Value)}, RecordCB);
 new_ssl_options([{next_protocols_advertised, Value} | Rest], #ssl_options{} = Opts, RecordCB) -> 
     new_ssl_options(Rest, Opts#ssl_options{next_protocols_advertised = validate_option(next_protocols_advertised, Value)}, RecordCB);
 new_ssl_options([{client_preferred_next_protocols, Value} | Rest], #ssl_options{} = Opts, RecordCB) -> 
@@ -1194,3 +1296,4 @@ handle_verify_options(Opts, CaCerts) ->
 	Value ->
 	    throw({error, {options, {verify, Value}}})
     end.
+
diff --git a/lib/ssl/src/ssl_alert.erl b/lib/ssl/src/ssl_alert.erl
index 9e372f739a..c46facb75d 100644
--- a/lib/ssl/src/ssl_alert.erl
+++ b/lib/ssl/src/ssl_alert.erl
@@ -163,5 +163,7 @@ description_txt(?UNKNOWN_PSK_IDENTITY) ->
     "unknown psk identity";
 description_txt(?INAPPROPRIATE_FALLBACK) ->
     "inappropriate fallback";
+description_txt(?NO_APPLICATION_PROTOCOL) ->
+    "no application protocol";
 description_txt(Enum) ->
     lists:flatten(io_lib:format("unsupported/unknown alert: ~p", [Enum])).
diff --git a/lib/ssl/src/ssl_alert.hrl b/lib/ssl/src/ssl_alert.hrl
index a3619e4a35..70b7523975 100644
--- a/lib/ssl/src/ssl_alert.hrl
+++ b/lib/ssl/src/ssl_alert.hrl
@@ -69,6 +69,8 @@
 %%         bad_certificate_hash_value(114),      
 %% RFC 4366
 %%       unknown_psk_identity(115),
+%% RFC 7301
+%%       no_application_protocol(120),
 %%           (255)
 %%       } AlertDescription;
 
@@ -103,6 +105,7 @@
 -define(BAD_CERTIFICATE_STATUS_RESPONSE, 113).
 -define(BAD_CERTIFICATE_HASH_VALUE, 114).
 -define(UNKNOWN_PSK_IDENTITY, 115).
+-define(NO_APPLICATION_PROTOCOL, 120).
 
 -define(ALERT_REC(Level,Desc), #alert{level=Level,description=Desc,where={?FILE, ?LINE}}).
 
diff --git a/lib/ssl/src/ssl_api.hrl b/lib/ssl/src/ssl_api.hrl
index 22185ff60a..78127eeafa 100644
--- a/lib/ssl/src/ssl_api.hrl
+++ b/lib/ssl/src/ssl_api.hrl
@@ -49,6 +49,8 @@
                          {srp_identity, {string(), string()}} |
                          {ciphers, ciphers()} | {ssl_imp, ssl_imp()} | {reuse_sessions, boolean()} |
                          {reuse_session, fun()} | {hibernate_after, integer()|undefined} |
+                         {alpn_advertised_protocols, [binary()]} |
+                         {alpn_preferred_protocols, [binary()]} |
                          {next_protocols_advertised, list(binary())} |
                          {client_preferred_next_protocols, binary(), client | server, list(binary())}.
 
diff --git a/lib/ssl/src/ssl_certificate.erl b/lib/ssl/src/ssl_certificate.erl
index 30d224fee2..34e4a8b447 100644
--- a/lib/ssl/src/ssl_certificate.erl
+++ b/lib/ssl/src/ssl_certificate.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2007-2014 All Rights Reserved.
+%% Copyright Ericsson AB 2007-2015 All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -33,7 +33,8 @@
 -export([trusted_cert_and_path/4,
 	 certificate_chain/3,
 	 file_to_certificats/2,
-	 validate_extension/3,
+	 file_to_crls/2,
+	 validate/3,
 	 is_valid_extkey_usage/2,
 	 is_valid_key_usage/2,
 	 select_extension/2,
@@ -83,16 +84,19 @@ trusted_cert_and_path(CertChain, CertDbHandle, CertDbRef, PartialChainHandler) -
     end.
 
 %%--------------------------------------------------------------------
--spec certificate_chain(undefined | binary(), db_handle(), certdb_ref()) ->
-			  {error, no_cert} | {ok, [der_cert()]}.
+-spec certificate_chain(undefined | binary() | #'OTPCertificate'{} , db_handle(), certdb_ref()) ->
+			  {error, no_cert} | {ok, #'OTPCertificate'{} | undefined, [der_cert()]}.
 %%
 %% Description: Return the certificate chain to send to peer.
 %%--------------------------------------------------------------------
 certificate_chain(undefined, _, _) ->
     {error, no_cert};
-certificate_chain(OwnCert, CertDbHandle, CertsDbRef) ->
+certificate_chain(OwnCert, CertDbHandle, CertsDbRef) when is_binary(OwnCert) ->
     ErlCert = public_key:pkix_decode_cert(OwnCert, otp),
-    certificate_chain(ErlCert, OwnCert, CertDbHandle, CertsDbRef, [OwnCert]).
+    certificate_chain(ErlCert, OwnCert, CertDbHandle, CertsDbRef, [OwnCert]);
+certificate_chain(OwnCert, CertDbHandle, CertsDbRef) ->
+    DerCert = public_key:pkix_encode('OTPCertificate', OwnCert, otp),
+    certificate_chain(OwnCert, DerCert, CertDbHandle, CertsDbRef, [DerCert]).
 %%--------------------------------------------------------------------
 -spec file_to_certificats(binary(), term()) -> [der_cert()].
 %%
@@ -101,29 +105,39 @@ certificate_chain(OwnCert, CertDbHandle, CertsDbRef) ->
 file_to_certificats(File, DbHandle) ->
     {ok, List} = ssl_manager:cache_pem_file(File, DbHandle),
     [Bin || {'Certificate', Bin, not_encrypted} <- List].
+
 %%--------------------------------------------------------------------
--spec validate_extension(term(), {extension, #'Extension'{}} | {bad_cert, atom()} | valid,
-			 term()) -> {valid, term()} |
-				    {fail, tuple()} |
-				    {unknown, term()}.
+-spec file_to_crls(binary(), term()) -> [der_cert()].
+%%
+%% Description: Return list of DER encoded certificates.
+%%--------------------------------------------------------------------
+file_to_crls(File, DbHandle) ->
+    {ok, List} = ssl_manager:cache_pem_file(File, DbHandle),
+    [Bin || {'CertificateList', Bin, not_encrypted} <- List].
+
+%%--------------------------------------------------------------------
+-spec validate(term(), {extension, #'Extension'{}} | {bad_cert, atom()} | valid,
+	       term()) -> {valid, term()} |
+			  {fail, tuple()} |
+			  {unknown, term()}.
 %%
 %% Description:  Validates ssl/tls specific extensions
 %%--------------------------------------------------------------------
-validate_extension(_,{extension, #'Extension'{extnID = ?'id-ce-extKeyUsage',
-					      extnValue = KeyUse}}, Role) ->
+validate(_,{extension, #'Extension'{extnID = ?'id-ce-extKeyUsage',
+				    extnValue = KeyUse}}, {Role, _,_, _, _}) ->
     case is_valid_extkey_usage(KeyUse, Role) of
 	true ->
 	    {valid, Role};
 	false ->
 	    {fail, {bad_cert, invalid_ext_key_usage}}
     end;
-validate_extension(_, {bad_cert, _} = Reason, _) ->
-    {fail, Reason};
-validate_extension(_, {extension, _}, Role) ->
+validate(_, {extension, _}, Role) ->
     {unknown, Role};
-validate_extension(_, valid, Role) ->
+validate(_, {bad_cert, _} = Reason, _) ->
+    {fail, Reason};
+validate(_, valid, Role) ->
     {valid, Role};
-validate_extension(_, valid_peer, Role) ->
+validate(_, valid_peer, Role) ->
     {valid, Role}.
 
 %%--------------------------------------------------------------------
@@ -194,14 +208,14 @@ certificate_chain(OtpCert, _Cert, CertDbHandle, CertsDbRef, Chain) ->
 		    %% certificate. The verification of the
 		    %% cert chain will fail if guess is
 		    %% incorrect.
-		    {ok, lists:reverse(Chain)}
+		    {ok, undefined, lists:reverse(Chain)}
 	    end;
 	{{ok, {SerialNr, Issuer}}, SelfSigned} -> 
 	    certificate_chain(CertDbHandle, CertsDbRef, Chain, SerialNr, Issuer, SelfSigned)
     end.
   
-certificate_chain(_,_, Chain, _SerialNr, _Issuer, true) ->
-    {ok, lists:reverse(Chain)};
+certificate_chain(_, _, [RootCert | _] = Chain, _, _, true) ->	  
+    {ok, RootCert, lists:reverse(Chain)};		      
 
 certificate_chain(CertDbHandle, CertsDbRef, Chain, SerialNr, Issuer, _SelfSigned) ->
     case ssl_manager:lookup_trusted_cert(CertDbHandle, CertsDbRef,
@@ -214,7 +228,7 @@ certificate_chain(CertDbHandle, CertsDbRef, Chain, SerialNr, Issuer, _SelfSigned
 	    %% The trusted cert may be obmitted from the chain as the
 	    %% counter part needs to have it anyway to be able to
 	    %% verify it.
-	    {ok, lists:reverse(Chain)}		      
+	    {ok, undefined, lists:reverse(Chain)}		      
     end.
 
 find_issuer(OtpCert, CertDbHandle) ->
diff --git a/lib/ssl/src/ssl_cipher.erl b/lib/ssl/src/ssl_cipher.erl
index bec0055353..8584e56d6c 100644
--- a/lib/ssl/src/ssl_cipher.erl
+++ b/lib/ssl/src/ssl_cipher.erl
@@ -33,9 +33,10 @@
 -include_lib("public_key/include/public_key.hrl").
 
 -export([security_parameters/2, security_parameters/3, suite_definition/1,
-	 decipher/6, cipher/5, suite/1, suites/1, all_suites/1, 
-	 ec_keyed_suites/0, anonymous_suites/0, psk_suites/1, srp_suites/0,
-	 openssl_suite/1, openssl_suite_name/1, filter/2, filter_suites/1,
+	 cipher_init/3, decipher/6, cipher/5, decipher_aead/6, cipher_aead/6,
+	 suite/1, suites/1, all_suites/1, 
+	 ec_keyed_suites/0, anonymous_suites/1, psk_suites/1, srp_suites/0,
+	 rc4_suites/1, openssl_suite/1, openssl_suite_name/1, filter/2, filter_suites/1,
 	 hash_algorithm/1, sign_algorithm/1, is_acceptable_hash/2, is_fallback/1]).
 
 -export_type([cipher_suite/0,
@@ -43,7 +44,7 @@
 	      key_algo/0]).
 
 -type cipher()            :: null |rc4_128 | idea_cbc | des40_cbc | des_cbc | '3des_ede_cbc' 
-			   | aes_128_cbc |  aes_256_cbc.
+			   | aes_128_cbc |  aes_256_cbc | aes_128_gcm | aes_256_gcm | chacha20_poly1305.
 -type hash()              :: null | sha | md5 | sha224 | sha256 | sha384 | sha512.
 -type key_algo()          :: null | rsa | dhe_rsa | dhe_dss | ecdhe_ecdsa| ecdh_ecdsa | ecdh_rsa| srp_rsa| srp_dss | psk | dhe_psk | rsa_psk | dh_anon | ecdh_anon | srp_anon.
 -type erl_cipher_suite()  :: {key_algo(), cipher(), hash()}.
@@ -87,20 +88,32 @@ security_parameters(Version, CipherSuite, SecParams) ->
       hash_size = hash_size(Hash)}.
 
 %%--------------------------------------------------------------------
+-spec cipher_init(cipher_enum(), binary(), binary()) -> #cipher_state{}.
+%%
+%% Description: Initializes the #cipher_state according to BCA
+%%-------------------------------------------------------------------
+cipher_init(?RC4, IV, Key) ->
+    State = crypto:stream_init(rc4, Key),
+    #cipher_state{iv = IV, key = Key, state = State};
+cipher_init(?AES_GCM, IV, Key) ->
+    <<Nonce:64>> = ssl:random_bytes(8),
+    #cipher_state{iv = IV, key = Key, nonce = Nonce};
+cipher_init(_BCA, IV, Key) ->
+    #cipher_state{iv = IV, key = Key}.
+
+%%--------------------------------------------------------------------
 -spec cipher(cipher_enum(), #cipher_state{}, binary(), iodata(), ssl_record:ssl_version()) ->
 		    {binary(), #cipher_state{}}. 
 %%
 %% Description: Encrypts the data and the MAC using chipher described
 %% by cipher_enum() and updating the cipher state
+%% Used for "MAC then Cipher" suites where first an HMAC of the
+%% data is calculated and the data plus the HMAC is ecncrypted.
 %%-------------------------------------------------------------------
 cipher(?NULL, CipherState, <<>>, Fragment, _Version) ->
     GenStreamCipherList = [Fragment, <<>>],
     {GenStreamCipherList, CipherState};
-cipher(?RC4, CipherState, Mac, Fragment, _Version) ->
-    State0 = case CipherState#cipher_state.state of
-                 undefined -> crypto:stream_init(rc4, CipherState#cipher_state.key);
-                 S -> S
-             end,
+cipher(?RC4, CipherState = #cipher_state{state = State0}, Mac, Fragment, _Version) ->
     GenStreamCipherList = [Fragment, Mac],
     {State1, T} = crypto:stream_encrypt(State0, GenStreamCipherList),
     {T, CipherState#cipher_state{state = State1}};
@@ -112,13 +125,40 @@ cipher(?'3DES', CipherState, Mac, Fragment, Version) ->
     block_cipher(fun(<<K1:8/binary, K2:8/binary, K3:8/binary>>, IV, T) ->
 			 crypto:block_encrypt(des3_cbc, [K1, K2, K3], IV, T)
 		 end, block_size(des_cbc), CipherState, Mac, Fragment, Version);
-cipher(?AES, CipherState, Mac, Fragment, Version) ->
+cipher(?AES_CBC, CipherState, Mac, Fragment, Version) ->
     block_cipher(fun(Key, IV, T) when byte_size(Key) =:= 16 ->
 			 crypto:block_encrypt(aes_cbc128, Key, IV, T);
 		    (Key, IV, T) when byte_size(Key) =:= 32 ->
 			 crypto:block_encrypt(aes_cbc256, Key, IV, T)
 		 end, block_size(aes_128_cbc), CipherState, Mac, Fragment, Version).
 
+%%--------------------------------------------------------------------
+-spec cipher_aead(cipher_enum(), #cipher_state{}, integer(), binary(), iodata(), ssl_record:ssl_version()) ->
+		    {binary(), #cipher_state{}}.
+%%
+%% Description: Encrypts the data and protects associated data (AAD) using chipher
+%% described by cipher_enum() and updating the cipher state
+%% Use for suites that use authenticated encryption with associated data (AEAD)
+%%-------------------------------------------------------------------
+cipher_aead(?AES_GCM, CipherState, SeqNo, AAD, Fragment, Version) ->
+    aead_cipher(aes_gcm, CipherState, SeqNo, AAD, Fragment, Version);
+cipher_aead(?CHACHA20_POLY1305, CipherState, SeqNo, AAD, Fragment, Version) ->
+    aead_cipher(chacha20_poly1305, CipherState, SeqNo, AAD, Fragment, Version).
+
+aead_cipher(chacha20_poly1305, #cipher_state{key=Key} = CipherState, SeqNo, AAD0, Fragment, _Version) ->
+    CipherLen = erlang:iolist_size(Fragment),
+    AAD = <<AAD0/binary, ?UINT16(CipherLen)>>,
+    Nonce = <<SeqNo:64/integer>>,
+    {Content, CipherTag} = crypto:block_encrypt(chacha20_poly1305, Key, Nonce, {AAD, Fragment}),
+    {<<Content/binary, CipherTag/binary>>, CipherState};
+aead_cipher(Type, #cipher_state{key=Key, iv = IV0, nonce = Nonce} = CipherState, _SeqNo, AAD0, Fragment, _Version) ->
+    CipherLen = erlang:iolist_size(Fragment),
+    AAD = <<AAD0/binary, ?UINT16(CipherLen)>>,
+    <<Salt:4/bytes, _/binary>> = IV0,
+    IV = <<Salt/binary, Nonce:64/integer>>,
+    {Content, CipherTag} = crypto:block_encrypt(Type, Key, IV, {AAD, Fragment}),
+    {<<Nonce:64/integer, Content/binary, CipherTag/binary>>, CipherState#cipher_state{nonce = Nonce + 1}}.
+
 build_cipher_block(BlockSz, Mac, Fragment) ->
     TotSz = byte_size(Mac) + erlang:iolist_size(Fragment) + 1,
     {PaddingLength, Padding} = get_padding(TotSz, BlockSz),
@@ -148,14 +188,12 @@ block_cipher(Fun, BlockSz, #cipher_state{key=Key, iv=IV} = CS0,
 %%
 %% Description: Decrypts the data and the MAC using cipher described
 %% by cipher_enum() and updating the cipher state.
+%% Used for "MAC then Cipher" suites where first the data is decrypted
+%% and the an HMAC of the decrypted data is checked
 %%-------------------------------------------------------------------
 decipher(?NULL, _HashSz, CipherState, Fragment, _, _) ->
     {Fragment, <<>>, CipherState};
-decipher(?RC4, HashSz, CipherState, Fragment, _, _) ->
-    State0 = case CipherState#cipher_state.state of
-		 undefined -> crypto:stream_init(rc4, CipherState#cipher_state.key);
-                 S -> S
-             end,
+decipher(?RC4, HashSz, CipherState = #cipher_state{state = State0}, Fragment, _, _) ->
     try crypto:stream_decrypt(State0, Fragment) of
 	{State, Text} ->
 	    GSC = generic_stream_cipher_from_bin(Text, HashSz),
@@ -179,13 +217,26 @@ decipher(?'3DES', HashSz, CipherState, Fragment, Version, PaddingCheck) ->
     block_decipher(fun(<<K1:8/binary, K2:8/binary, K3:8/binary>>, IV, T) ->
 			   crypto:block_decrypt(des3_cbc, [K1, K2, K3], IV, T)
 		   end, CipherState, HashSz, Fragment, Version, PaddingCheck);
-decipher(?AES, HashSz, CipherState, Fragment, Version, PaddingCheck) ->
+decipher(?AES_CBC, HashSz, CipherState, Fragment, Version, PaddingCheck) ->
     block_decipher(fun(Key, IV, T) when byte_size(Key) =:= 16 ->
 			   crypto:block_decrypt(aes_cbc128, Key, IV, T);
 		      (Key, IV, T) when byte_size(Key) =:= 32 ->
 			   crypto:block_decrypt(aes_cbc256, Key, IV, T)
 		   end, CipherState, HashSz, Fragment, Version, PaddingCheck).
 
+%%--------------------------------------------------------------------
+-spec decipher_aead(cipher_enum(),  #cipher_state{}, integer(), binary(), binary(), ssl_record:ssl_version()) ->
+			   {binary(), binary(), #cipher_state{}} | #alert{}.
+%%
+%% Description: Decrypts the data and checks the associated data (AAD) MAC using
+%% cipher described by cipher_enum() and updating the cipher state.
+%% Use for suites that use authenticated encryption with associated data (AEAD)
+%%-------------------------------------------------------------------
+decipher_aead(?AES_GCM, CipherState, SeqNo, AAD, Fragment, Version) ->
+    aead_decipher(aes_gcm, CipherState, SeqNo, AAD, Fragment, Version);
+decipher_aead(?CHACHA20_POLY1305, CipherState, SeqNo, AAD, Fragment, Version) ->
+    aead_decipher(chacha20_poly1305, CipherState, SeqNo, AAD, Fragment, Version).
+
 block_decipher(Fun, #cipher_state{key=Key, iv=IV} = CipherState0, 
 	       HashSz, Fragment, Version, PaddingCheck) ->
     try 
@@ -215,6 +266,35 @@ block_decipher(Fun, #cipher_state{key=Key, iv=IV} = CipherState0,
 	    %% bad_record_mac alert to hide the specific type of the error."
 	    ?ALERT_REC(?FATAL, ?BAD_RECORD_MAC)
     end.
+
+aead_ciphertext_to_state(chacha20_poly1305, SeqNo, _IV, AAD0, Fragment, _Version) ->
+    CipherLen = size(Fragment) - 16,
+    <<CipherText:CipherLen/bytes, CipherTag:16/bytes>> = Fragment,
+    AAD = <<AAD0/binary, ?UINT16(CipherLen)>>,
+    Nonce = <<SeqNo:64/integer>>,
+    {Nonce, AAD, CipherText, CipherTag};
+aead_ciphertext_to_state(_, _SeqNo, <<Salt:4/bytes, _/binary>>, AAD0, Fragment, _Version) ->
+    CipherLen = size(Fragment) - 24,
+    <<ExplicitNonce:8/bytes, CipherText:CipherLen/bytes,  CipherTag:16/bytes>> = Fragment,
+    AAD = <<AAD0/binary, ?UINT16(CipherLen)>>,
+    Nonce = <<Salt/binary, ExplicitNonce/binary>>,
+    {Nonce, AAD, CipherText, CipherTag}.
+
+aead_decipher(Type, #cipher_state{key = Key, iv = IV} = CipherState,
+	      SeqNo, AAD0, Fragment, Version) ->
+    try
+	{Nonce, AAD, CipherText, CipherTag} = aead_ciphertext_to_state(Type, SeqNo, IV, AAD0, Fragment, Version),
+	case crypto:block_decrypt(Type, Key, Nonce, {AAD, CipherText, CipherTag}) of
+	    Content when is_binary(Content) ->
+		{Content, CipherState};
+	    _ ->
+		?ALERT_REC(?FATAL, ?BAD_RECORD_MAC)
+	end
+    catch
+	_:_ ->
+	    ?ALERT_REC(?FATAL, ?BAD_RECORD_MAC)
+    end.
+
 %%--------------------------------------------------------------------
 -spec suites(ssl_record:ssl_version()) -> [cipher_suite()].
 %%
@@ -227,16 +307,27 @@ suites({3, N}) ->
 
 all_suites(Version) ->
     suites(Version)
-	++ ssl_cipher:anonymous_suites()
-	++ ssl_cipher:psk_suites(Version)
-	++ ssl_cipher:srp_suites().
+	++ anonymous_suites(Version)
+	++ psk_suites(Version)
+	++ srp_suites()
+        ++ rc4_suites(Version).
 %%--------------------------------------------------------------------
--spec anonymous_suites() -> [cipher_suite()].
+-spec anonymous_suites(ssl_record:ssl_version() | integer()) -> [cipher_suite()].
 %%
 %% Description: Returns a list of the anonymous cipher suites, only supported
 %% if explicitly set by user. Intended only for testing.
 %%--------------------------------------------------------------------
-anonymous_suites() ->
+
+anonymous_suites({3, N}) ->
+    anonymous_suites(N);
+
+anonymous_suites(N)
+  when N >= 3 ->
+    [?TLS_DH_anon_WITH_AES_128_GCM_SHA256,
+     ?TLS_DH_anon_WITH_AES_256_GCM_SHA384
+    ] ++ anonymous_suites(0);
+
+anonymous_suites(_) ->
     [?TLS_DH_anon_WITH_RC4_128_MD5,
      ?TLS_DH_anon_WITH_DES_CBC_SHA,
      ?TLS_DH_anon_WITH_3DES_EDE_CBC_SHA,
@@ -260,13 +351,20 @@ psk_suites({3, N}) ->
 
 psk_suites(N)
   when N >= 3 ->
-    psk_suites(0) ++
-	[?TLS_DHE_PSK_WITH_AES_256_CBC_SHA384,
-	 ?TLS_RSA_PSK_WITH_AES_256_CBC_SHA384,
-	 ?TLS_PSK_WITH_AES_256_CBC_SHA384,
-	 ?TLS_DHE_PSK_WITH_AES_128_CBC_SHA256,
-	 ?TLS_RSA_PSK_WITH_AES_128_CBC_SHA256,
-	 ?TLS_PSK_WITH_AES_128_CBC_SHA256];
+    [
+     ?TLS_DHE_PSK_WITH_AES_256_GCM_SHA384,
+     ?TLS_RSA_PSK_WITH_AES_256_GCM_SHA384,
+     ?TLS_PSK_WITH_AES_256_GCM_SHA384,
+     ?TLS_DHE_PSK_WITH_AES_256_CBC_SHA384,
+     ?TLS_RSA_PSK_WITH_AES_256_CBC_SHA384,
+     ?TLS_PSK_WITH_AES_256_CBC_SHA384,
+     ?TLS_DHE_PSK_WITH_AES_128_GCM_SHA256,
+     ?TLS_RSA_PSK_WITH_AES_128_GCM_SHA256,
+     ?TLS_PSK_WITH_AES_128_GCM_SHA256,
+     ?TLS_DHE_PSK_WITH_AES_128_CBC_SHA256,
+     ?TLS_RSA_PSK_WITH_AES_128_CBC_SHA256,
+     ?TLS_PSK_WITH_AES_128_CBC_SHA256
+    ] ++ psk_suites(0);
 
 psk_suites(_) ->
 	[?TLS_DHE_PSK_WITH_AES_256_CBC_SHA,
@@ -298,6 +396,24 @@ srp_suites() ->
      ?TLS_SRP_SHA_WITH_AES_256_CBC_SHA,
      ?TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA,
      ?TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA].
+%%--------------------------------------------------------------------
+-spec rc4_suites(Version::ssl_record:ssl_version()) -> [cipher_suite()].
+%%
+%% Description: Returns a list of the RSA|(ECDH/RSA)| (ECDH/ECDSA) 
+%% with RC4 cipher suites, only supported if explicitly set by user. 
+%% Are not considered secure any more. Other RC4 suites already
+%% belonged to the user configured only category.
+%%--------------------------------------------------------------------
+rc4_suites({3, 0}) ->
+    [?TLS_RSA_WITH_RC4_128_SHA,
+     ?TLS_RSA_WITH_RC4_128_MD5];
+rc4_suites({3, N}) when N =< 3 ->
+    [?TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
+     ?TLS_ECDHE_RSA_WITH_RC4_128_SHA,
+     ?TLS_RSA_WITH_RC4_128_SHA,
+     ?TLS_RSA_WITH_RC4_128_MD5,
+     ?TLS_ECDH_ECDSA_WITH_RC4_128_SHA,
+     ?TLS_ECDH_RSA_WITH_RC4_128_SHA].
 
 %%--------------------------------------------------------------------
 -spec suite_definition(cipher_suite()) -> int_cipher_suite().
@@ -418,6 +534,19 @@ suite_definition(?TLS_RSA_PSK_WITH_AES_256_CBC_SHA) ->
 
 %%% TLS 1.2 PSK Cipher Suites RFC 5487
 
+suite_definition(?TLS_PSK_WITH_AES_128_GCM_SHA256) ->
+    {psk, aes_128_gcm, null, sha256};
+suite_definition(?TLS_PSK_WITH_AES_256_GCM_SHA384) ->
+    {psk, aes_256_gcm, null, sha384};
+suite_definition(?TLS_DHE_PSK_WITH_AES_128_GCM_SHA256) ->
+    {dhe_psk, aes_128_gcm, null, sha256};
+suite_definition(?TLS_DHE_PSK_WITH_AES_256_GCM_SHA384) ->
+    {dhe_psk, aes_256_gcm, null, sha384};
+suite_definition(?TLS_RSA_PSK_WITH_AES_128_GCM_SHA256) ->
+    {rsa_psk, aes_128_gcm, null, sha256};
+suite_definition(?TLS_RSA_PSK_WITH_AES_256_GCM_SHA384) ->
+    {rsa_psk, aes_256_gcm, null, sha384};
+
 suite_definition(?TLS_PSK_WITH_AES_128_CBC_SHA256) ->
     {psk, aes_128_cbc, sha256, default_prf};
 suite_definition(?TLS_PSK_WITH_AES_256_CBC_SHA384) ->
@@ -537,7 +666,59 @@ suite_definition(?TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) ->
 suite_definition(?TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256) ->
     {ecdh_rsa, aes_128_cbc, sha256, sha256};
 suite_definition(?TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384) ->
-    {ecdh_rsa, aes_256_cbc, sha384, sha384}.
+    {ecdh_rsa, aes_256_cbc, sha384, sha384};
+
+%% RFC 5288 AES-GCM Cipher Suites
+suite_definition(?TLS_RSA_WITH_AES_128_GCM_SHA256) ->
+    {rsa, aes_128_gcm, null, sha256};
+suite_definition(?TLS_RSA_WITH_AES_256_GCM_SHA384) ->
+    {rsa, aes_256_gcm, null, sha384};
+suite_definition(?TLS_DHE_RSA_WITH_AES_128_GCM_SHA256) ->
+    {dhe_rsa, aes_128_gcm, null, sha256};
+suite_definition(?TLS_DHE_RSA_WITH_AES_256_GCM_SHA384) ->
+    {dhe_rsa, aes_256_gcm, null, sha384};
+suite_definition(?TLS_DH_RSA_WITH_AES_128_GCM_SHA256) ->
+    {dh_rsa, aes_128_gcm, null, sha256};
+suite_definition(?TLS_DH_RSA_WITH_AES_256_GCM_SHA384) ->
+    {dh_rsa, aes_256_gcm, null, sha384};
+suite_definition(?TLS_DHE_DSS_WITH_AES_128_GCM_SHA256) ->
+    {dhe_dss, aes_128_gcm, null, sha256};
+suite_definition(?TLS_DHE_DSS_WITH_AES_256_GCM_SHA384) ->
+    {dhe_dss, aes_256_gcm, null, sha384};
+suite_definition(?TLS_DH_DSS_WITH_AES_128_GCM_SHA256) ->
+    {dh_dss, aes_128_gcm, null, sha256};
+suite_definition(?TLS_DH_DSS_WITH_AES_256_GCM_SHA384) ->
+    {dh_dss, aes_256_gcm, null, sha384};
+suite_definition(?TLS_DH_anon_WITH_AES_128_GCM_SHA256) ->
+    {dh_anon, aes_128_gcm, null, sha256};
+suite_definition(?TLS_DH_anon_WITH_AES_256_GCM_SHA384) ->
+    {dh_anon, aes_256_gcm, null, sha384};
+
+%% RFC 5289 ECC AES-GCM Cipher Suites
+suite_definition(?TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256) ->
+    {ecdhe_ecdsa, aes_128_gcm, null, sha256};
+suite_definition(?TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384) ->
+    {ecdhe_ecdsa, aes_256_gcm, null, sha384};
+suite_definition(?TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256) ->
+    {ecdh_ecdsa, aes_128_gcm, null, sha256};
+suite_definition(?TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384) ->
+    {ecdh_ecdsa, aes_256_gcm, null, sha384};
+suite_definition(?TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) ->
+    {ecdhe_rsa, aes_128_gcm, null, sha256};
+suite_definition(?TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) ->
+    {ecdhe_rsa, aes_256_gcm, null, sha384};
+suite_definition(?TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256) ->
+    {ecdh_rsa, aes_128_gcm, null, sha256};
+suite_definition(?TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384) ->
+    {ecdh_rsa, aes_256_gcm, null, sha384};
+
+%% draft-agl-tls-chacha20poly1305-04 Chacha20/Poly1305 Suites
+suite_definition(?TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256) ->
+    {ecdhe_rsa, chacha20_poly1305, null, sha256};
+suite_definition(?TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256) ->
+    {ecdhe_ecdsa, chacha20_poly1305, null, sha256};
+suite_definition(?TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256) ->
+    {dhe_rsa, chacha20_poly1305, null, sha256}.
 
 %%--------------------------------------------------------------------
 -spec suite(erl_cipher_suite()) -> cipher_suite().
@@ -641,6 +822,19 @@ suite({rsa_psk, aes_256_cbc,sha}) ->
 
 %%% TLS 1.2 PSK Cipher Suites RFC 5487
 
+suite({psk, aes_128_gcm, null}) ->
+    ?TLS_PSK_WITH_AES_128_GCM_SHA256;
+suite({psk, aes_256_gcm, null}) ->
+    ?TLS_PSK_WITH_AES_256_GCM_SHA384;
+suite({dhe_psk, aes_128_gcm, null}) ->
+    ?TLS_DHE_PSK_WITH_AES_128_GCM_SHA256;
+suite({dhe_psk, aes_256_gcm, null}) ->
+    ?TLS_DHE_PSK_WITH_AES_256_GCM_SHA384;
+suite({rsa_psk, aes_128_gcm, null}) ->
+    ?TLS_RSA_PSK_WITH_AES_128_GCM_SHA256;
+suite({rsa_psk, aes_256_gcm, null}) ->
+    ?TLS_RSA_PSK_WITH_AES_256_GCM_SHA384;
+
 suite({psk, aes_128_cbc, sha256}) ->
     ?TLS_PSK_WITH_AES_128_CBC_SHA256;
 suite({psk, aes_256_cbc, sha384}) ->
@@ -760,7 +954,60 @@ suite({ecdhe_rsa, aes_256_cbc, sha384}) ->
 suite({ecdh_rsa, aes_128_cbc, sha256}) ->
     ?TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256;
 suite({ecdh_rsa, aes_256_cbc, sha384}) ->
-    ?TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384.
+    ?TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384;
+
+%% RFC 5288 AES-GCM Cipher Suites
+suite({rsa, aes_128_gcm, null}) ->
+    ?TLS_RSA_WITH_AES_128_GCM_SHA256;
+suite({rsa, aes_256_gcm, null}) ->
+    ?TLS_RSA_WITH_AES_256_GCM_SHA384;
+suite({dhe_rsa, aes_128_gcm, null}) ->
+    ?TLS_DHE_RSA_WITH_AES_128_GCM_SHA256;
+suite({dhe_rsa, aes_256_gcm, null}) ->
+    ?TLS_DHE_RSA_WITH_AES_256_GCM_SHA384;
+suite({dh_rsa, aes_128_gcm, null}) ->
+    ?TLS_DH_RSA_WITH_AES_128_GCM_SHA256;
+suite({dh_rsa, aes_256_gcm, null}) ->
+    ?TLS_DH_RSA_WITH_AES_256_GCM_SHA384;
+suite({dhe_dss, aes_128_gcm, null}) ->
+    ?TLS_DHE_DSS_WITH_AES_128_GCM_SHA256;
+suite({dhe_dss, aes_256_gcm, null}) ->
+    ?TLS_DHE_DSS_WITH_AES_256_GCM_SHA384;
+suite({dh_dss, aes_128_gcm, null}) ->
+    ?TLS_DH_DSS_WITH_AES_128_GCM_SHA256;
+suite({dh_dss, aes_256_gcm, null}) ->
+    ?TLS_DH_DSS_WITH_AES_256_GCM_SHA384;
+suite({dh_anon, aes_128_gcm, null}) ->
+    ?TLS_DH_anon_WITH_AES_128_GCM_SHA256;
+suite({dh_anon, aes_256_gcm, null}) ->
+    ?TLS_DH_anon_WITH_AES_256_GCM_SHA384;
+
+%% RFC 5289 ECC AES-GCM Cipher Suites
+suite({ecdhe_ecdsa, aes_128_gcm, null}) ->
+    ?TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256;
+suite({ecdhe_ecdsa, aes_256_gcm, null}) ->
+    ?TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384;
+suite({ecdh_ecdsa, aes_128_gcm, null}) ->
+    ?TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256;
+suite({ecdh_ecdsa, aes_256_gcm, null}) ->
+    ?TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384;
+suite({ecdhe_rsa, aes_128_gcm, null}) ->
+    ?TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256;
+suite({ecdhe_rsa, aes_256_gcm, null}) ->
+    ?TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384;
+suite({ecdh_rsa, aes_128_gcm, null}) ->
+    ?TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256;
+suite({ecdh_rsa, aes_256_gcm, null}) ->
+    ?TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384;
+
+
+%% draft-agl-tls-chacha20poly1305-04 Chacha20/Poly1305 Suites
+suite({ecdhe_rsa, chacha20_poly1305, null}) ->
+    ?TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256;
+suite({ecdhe_ecdsa, chacha20_poly1305, null}) ->
+    ?TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256;
+suite({dhe_rsa, chacha20_poly1305, null}) ->
+    ?TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256.
 
 %%--------------------------------------------------------------------
 -spec openssl_suite(openssl_cipher_suite()) -> cipher_suite().
@@ -875,7 +1122,47 @@ openssl_suite("ECDHE-RSA-AES256-SHA384") ->
 openssl_suite("ECDH-RSA-AES128-SHA256") ->
     ?TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256;
 openssl_suite("ECDH-RSA-AES256-SHA384") ->
-    ?TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384.
+    ?TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384;
+
+%% RFC 5288 AES-GCM Cipher Suites
+openssl_suite("AES128-GCM-SHA256") ->
+    ?TLS_RSA_WITH_AES_128_GCM_SHA256;
+openssl_suite("AES256-GCM-SHA384") ->
+    ?TLS_RSA_WITH_AES_256_GCM_SHA384;
+openssl_suite("DHE-RSA-AES128-GCM-SHA256") ->
+    ?TLS_DHE_RSA_WITH_AES_128_GCM_SHA256;
+openssl_suite("DHE-RSA-AES256-GCM-SHA384") ->
+    ?TLS_DHE_RSA_WITH_AES_256_GCM_SHA384;
+openssl_suite("DH-RSA-AES128-GCM-SHA256") ->
+    ?TLS_DH_RSA_WITH_AES_128_GCM_SHA256;
+openssl_suite("DH-RSA-AES256-GCM-SHA384") ->
+    ?TLS_DH_RSA_WITH_AES_256_GCM_SHA384;
+openssl_suite("DHE-DSS-AES128-GCM-SHA256") ->
+    ?TLS_DHE_DSS_WITH_AES_128_GCM_SHA256;
+openssl_suite("DHE-DSS-AES256-GCM-SHA384") ->
+    ?TLS_DHE_DSS_WITH_AES_256_GCM_SHA384;
+openssl_suite("DH-DSS-AES128-GCM-SHA256") ->
+    ?TLS_DH_DSS_WITH_AES_128_GCM_SHA256;
+openssl_suite("DH-DSS-AES256-GCM-SHA384") ->
+    ?TLS_DH_DSS_WITH_AES_256_GCM_SHA384;
+
+%% RFC 5289 ECC AES-GCM Cipher Suites
+openssl_suite("ECDHE-ECDSA-AES128-GCM-SHA256") ->
+    ?TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256;
+openssl_suite("ECDHE-ECDSA-AES256-GCM-SHA384") ->
+    ?TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384;
+openssl_suite("ECDH-ECDSA-AES128-GCM-SHA256") ->
+    ?TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256;
+openssl_suite("ECDH-ECDSA-AES256-GCM-SHA384") ->
+    ?TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384;
+openssl_suite("ECDHE-RSA-AES128-GCM-SHA256") ->
+    ?TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256;
+openssl_suite("ECDHE-RSA-AES256-GCM-SHA384") ->
+    ?TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384;
+openssl_suite("ECDH-RSA-AES128-GCM-SHA256") ->
+    ?TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256;
+openssl_suite("ECDH-RSA-AES256-GCM-SHA384") ->
+    ?TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384.
 
 %%--------------------------------------------------------------------
 -spec openssl_suite_name(cipher_suite()) -> openssl_cipher_suite().
@@ -1012,6 +1299,46 @@ openssl_suite_name(?TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256) ->
 openssl_suite_name(?TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384) ->
     "ECDH-RSA-AES256-SHA384";
 
+%% RFC 5288 AES-GCM Cipher Suites
+openssl_suite_name(?TLS_RSA_WITH_AES_128_GCM_SHA256) ->
+    "AES128-GCM-SHA256";
+openssl_suite_name(?TLS_RSA_WITH_AES_256_GCM_SHA384) ->
+    "AES256-GCM-SHA384";
+openssl_suite_name(?TLS_DHE_RSA_WITH_AES_128_GCM_SHA256) ->
+    "DHE-RSA-AES128-GCM-SHA256";
+openssl_suite_name(?TLS_DHE_RSA_WITH_AES_256_GCM_SHA384) ->
+    "DHE-RSA-AES256-GCM-SHA384";
+openssl_suite_name(?TLS_DH_RSA_WITH_AES_128_GCM_SHA256) ->
+    "DH-RSA-AES128-GCM-SHA256";
+openssl_suite_name(?TLS_DH_RSA_WITH_AES_256_GCM_SHA384) ->
+    "DH-RSA-AES256-GCM-SHA384";
+openssl_suite_name(?TLS_DHE_DSS_WITH_AES_128_GCM_SHA256) ->
+    "DHE-DSS-AES128-GCM-SHA256";
+openssl_suite_name(?TLS_DHE_DSS_WITH_AES_256_GCM_SHA384) ->
+    "DHE-DSS-AES256-GCM-SHA384";
+openssl_suite_name(?TLS_DH_DSS_WITH_AES_128_GCM_SHA256) ->
+    "DH-DSS-AES128-GCM-SHA256";
+openssl_suite_name(?TLS_DH_DSS_WITH_AES_256_GCM_SHA384) ->
+    "DH-DSS-AES256-GCM-SHA384";
+
+%% RFC 5289 ECC AES-GCM Cipher Suites
+openssl_suite_name(?TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256) ->
+    "ECDHE-ECDSA-AES128-GCM-SHA256";
+openssl_suite_name(?TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384) ->
+    "ECDHE-ECDSA-AES256-GCM-SHA384";
+openssl_suite_name(?TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256) ->
+    "ECDH-ECDSA-AES128-GCM-SHA256";
+openssl_suite_name(?TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384) ->
+    "ECDH-ECDSA-AES256-GCM-SHA384";
+openssl_suite_name(?TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) ->
+    "ECDHE-RSA-AES128-GCM-SHA256";
+openssl_suite_name(?TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) ->
+    "ECDHE-RSA-AES256-GCM-SHA384";
+openssl_suite_name(?TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256) ->
+    "ECDH-RSA-AES128-GCM-SHA256";
+openssl_suite_name(?TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384) ->
+    "ECDH-RSA-AES256-GCM-SHA384";
+
 %% No oppenssl name
 openssl_suite_name(Cipher) ->
     suite_definition(Cipher).
@@ -1095,6 +1422,13 @@ is_acceptable_keyexchange(KeyExchange, Algos)
 is_acceptable_keyexchange(_, _) ->
     true.
 
+is_acceptable_cipher(Cipher, Algos)
+  when Cipher == aes_128_gcm;
+       Cipher == aes_256_gcm ->
+    proplists:get_bool(aes_gcm, Algos);
+is_acceptable_cipher(Cipher, Algos)
+  when Cipher == chacha20_poly1305 ->
+    proplists:get_bool(Cipher, Algos);
 is_acceptable_cipher(_, _) ->
     true.
 
@@ -1125,7 +1459,12 @@ bulk_cipher_algorithm('3des_ede_cbc') ->
     ?'3DES';
 bulk_cipher_algorithm(Cipher) when Cipher == aes_128_cbc;
 				   Cipher == aes_256_cbc ->
-    ?AES.
+    ?AES_CBC;
+bulk_cipher_algorithm(Cipher) when Cipher == aes_128_gcm;
+				   Cipher == aes_256_gcm ->
+    ?AES_GCM;
+bulk_cipher_algorithm(chacha20_poly1305) ->
+    ?CHACHA20_POLY1305.
 
 type(Cipher) when Cipher == null;
 		  Cipher == rc4_128 ->
@@ -1135,7 +1474,11 @@ type(Cipher) when Cipher == des_cbc;
 		  Cipher == '3des_ede_cbc';
 		  Cipher == aes_128_cbc;
 		  Cipher == aes_256_cbc ->
-    ?BLOCK.
+    ?BLOCK;
+type(Cipher) when Cipher == aes_128_gcm;
+		  Cipher == aes_256_gcm;
+		  Cipher == chacha20_poly1305 ->
+    ?AEAD.
 
 key_material(null) ->
     0;
@@ -1148,6 +1491,12 @@ key_material('3des_ede_cbc') ->
 key_material(aes_128_cbc) ->
     16;
 key_material(aes_256_cbc) ->
+    32;
+key_material(aes_128_gcm) ->
+    16;
+key_material(aes_256_gcm) ->
+    32;
+key_material(chacha20_poly1305) ->
     32.
 
 expanded_key_material(null) ->
@@ -1159,7 +1508,10 @@ expanded_key_material(Cipher) when Cipher == des_cbc ->
 expanded_key_material('3des_ede_cbc') ->
     24;
 expanded_key_material(Cipher) when Cipher == aes_128_cbc;
- 				   Cipher == aes_256_cbc ->
+				   Cipher == aes_256_cbc;
+				   Cipher == aes_128_gcm;
+				   Cipher == aes_256_gcm;
+				   Cipher == chacha20_poly1305 ->
     unknown.  
 
 
@@ -1168,16 +1520,25 @@ effective_key_bits(null) ->
 effective_key_bits(des_cbc) ->
     56;
 effective_key_bits(Cipher) when Cipher == rc4_128;
-				Cipher == aes_128_cbc ->
+				Cipher == aes_128_cbc;
+				Cipher == aes_128_gcm ->
     128;
 effective_key_bits('3des_ede_cbc') ->
     168;
-effective_key_bits(aes_256_cbc) ->
+effective_key_bits(Cipher) when Cipher == aes_256_cbc;
+				Cipher == aes_256_gcm;
+				Cipher == chacha20_poly1305 ->
     256.
 
 iv_size(Cipher) when Cipher == null;
-		     Cipher == rc4_128 ->
+		     Cipher == rc4_128;
+		     Cipher == chacha20_poly1305->
     0;
+
+iv_size(Cipher) when Cipher == aes_128_gcm;
+		     Cipher == aes_256_gcm ->
+    4;
+
 iv_size(Cipher) ->
     block_size(Cipher).
 
@@ -1186,7 +1547,10 @@ block_size(Cipher) when Cipher == des_cbc;
     8;
 
 block_size(Cipher) when Cipher == aes_128_cbc;
-			Cipher == aes_256_cbc ->
+			Cipher == aes_256_cbc;
+			Cipher == aes_128_gcm;
+			Cipher == aes_256_gcm;
+			Cipher == chacha20_poly1305 ->
     16.
 
 prf_algorithm(default_prf, {3, N}) when N >= 3 ->
@@ -1342,10 +1706,15 @@ dhe_rsa_suites() ->
      ?TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA,
      ?TLS_DHE_RSA_WITH_AES_128_CBC_SHA256,
      ?TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
-     ?TLS_DHE_RSA_WITH_DES_CBC_SHA].
+     ?TLS_DHE_RSA_WITH_DES_CBC_SHA,
+     ?TLS_DHE_RSA_WITH_AES_128_GCM_SHA256,
+     ?TLS_DHE_RSA_WITH_AES_256_GCM_SHA384,
+     ?TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256].
 
 psk_rsa_suites() ->
-    [?TLS_RSA_PSK_WITH_AES_256_CBC_SHA384,
+    [?TLS_RSA_PSK_WITH_AES_256_GCM_SHA384,
+     ?TLS_RSA_PSK_WITH_AES_128_GCM_SHA256,
+     ?TLS_RSA_PSK_WITH_AES_256_CBC_SHA384,
      ?TLS_RSA_PSK_WITH_AES_128_CBC_SHA256,
      ?TLS_RSA_PSK_WITH_AES_256_CBC_SHA,
      ?TLS_RSA_PSK_WITH_AES_128_CBC_SHA,
@@ -1365,7 +1734,9 @@ rsa_suites() ->
      ?TLS_RSA_WITH_AES_128_CBC_SHA,
      ?TLS_RSA_WITH_RC4_128_SHA,
      ?TLS_RSA_WITH_RC4_128_MD5,
-     ?TLS_RSA_WITH_DES_CBC_SHA].
+     ?TLS_RSA_WITH_DES_CBC_SHA,
+     ?TLS_RSA_WITH_AES_128_GCM_SHA256,
+     ?TLS_RSA_WITH_AES_256_GCM_SHA384].
 
 ecdh_rsa_suites() ->
     [?TLS_ECDH_RSA_WITH_NULL_SHA,
@@ -1374,7 +1745,9 @@ ecdh_rsa_suites() ->
      ?TLS_ECDH_RSA_WITH_AES_128_CBC_SHA,
      ?TLS_ECDH_RSA_WITH_AES_256_CBC_SHA,
      ?TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256,
-     ?TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384].
+     ?TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384,
+     ?TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256,
+     ?TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384].
 
 ecdhe_rsa_suites() ->
     [?TLS_ECDHE_RSA_WITH_NULL_SHA,
@@ -1383,7 +1756,10 @@ ecdhe_rsa_suites() ->
      ?TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
      ?TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
      ?TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
-     ?TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384].
+     ?TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384,
+     ?TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
+     ?TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
+     ?TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256].
 
 dsa_signed_suites() ->
     dhe_dss_suites() ++ srp_dss_suites().
@@ -1394,7 +1770,9 @@ dhe_dss_suites()  ->
      ?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA,
      ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA256,
      ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA,
-     ?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA].
+     ?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA,
+     ?TLS_DHE_DSS_WITH_AES_128_GCM_SHA256,
+     ?TLS_DHE_DSS_WITH_AES_256_GCM_SHA384].
 
 srp_dss_suites() ->
     [?TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA,
@@ -1418,7 +1796,9 @@ ecdh_ecdsa_suites() ->
      ?TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA,
      ?TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA,
      ?TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256,
-     ?TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384].
+     ?TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384,
+     ?TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256,
+     ?TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384].
 
 ecdhe_ecdsa_suites() ->
     [?TLS_ECDHE_ECDSA_WITH_NULL_SHA,
@@ -1427,7 +1807,10 @@ ecdhe_ecdsa_suites() ->
      ?TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
      ?TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
      ?TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
-     ?TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384].
+     ?TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384,
+     ?TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
+     ?TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
+     ?TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256].
 
 filter_keyuse(OtpCert, Ciphers, Suites, SignSuites) ->
     TBSCert = OtpCert#'OTPCertificate'.tbsCertificate, 
diff --git a/lib/ssl/src/ssl_cipher.hrl b/lib/ssl/src/ssl_cipher.hrl
index 3e50563f0a..8689a3c68b 100644
--- a/lib/ssl/src/ssl_cipher.hrl
+++ b/lib/ssl/src/ssl_cipher.hrl
@@ -46,7 +46,8 @@
 -record(cipher_state, {
 	  iv,
 	  key,
-	  state
+	  state,
+	  nonce
 	 }).
 
 %%% TLS_NULL_WITH_NULL_NULL is specified and is the initial state of a
@@ -399,6 +400,24 @@
 
 %%% TLS 1.2 PSK Cipher Suites RFC 5487
 
+%%      TLS_PSK_WITH_AES_128_GCM_SHA256       = {0x00,0xA8};
+-define(TLS_PSK_WITH_AES_128_GCM_SHA256, <<?BYTE(16#00), ?BYTE(16#A8)>>).
+
+%%      TLS_PSK_WITH_AES_256_GCM_SHA384       = {0x00,0xA9};
+-define(TLS_PSK_WITH_AES_256_GCM_SHA384, <<?BYTE(16#00), ?BYTE(16#A9)>>).
+
+%%      TLS_DHE_PSK_WITH_AES_128_GCM_SHA256   = {0x00,0xAA};
+-define(TLS_DHE_PSK_WITH_AES_128_GCM_SHA256, <<?BYTE(16#00), ?BYTE(16#AA)>>).
+
+%%      TLS_DHE_PSK_WITH_AES_256_GCM_SHA384   = {0x00,0xAB};
+-define(TLS_DHE_PSK_WITH_AES_256_GCM_SHA384, <<?BYTE(16#00), ?BYTE(16#AB)>>).
+
+%%      TLS_RSA_PSK_WITH_AES_128_GCM_SHA256   = {0x00,0xAC};
+-define(TLS_RSA_PSK_WITH_AES_128_GCM_SHA256, <<?BYTE(16#00), ?BYTE(16#AC)>>).
+
+%%      TLS_RSA_PSK_WITH_AES_256_GCM_SHA384   = {0x00,0xAD};
+-define(TLS_RSA_PSK_WITH_AES_256_GCM_SHA384, <<?BYTE(16#00), ?BYTE(16#AD)>>).
+
 %%      TLS_PSK_WITH_AES_128_CBC_SHA256       = {0x00,0xAE};
 -define(TLS_PSK_WITH_AES_128_CBC_SHA256, <<?BYTE(16#00), ?BYTE(16#AE)>>).
 
@@ -464,4 +483,79 @@
 %%      TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA  = { 0xC0,0x22 };
 -define(TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA, <<?BYTE(16#C0), ?BYTE(16#22)>>).
 
+%%% AES-GCM Cipher Suites RFC 5288
+
+%%      TLS_RSA_WITH_AES_128_GCM_SHA256     = {0x00,0x9C}
+-define(TLS_RSA_WITH_AES_128_GCM_SHA256, <<?BYTE(16#00), ?BYTE(16#9C)>>).
+
+%%      TLS_RSA_WITH_AES_256_GCM_SHA384     = {0x00,0x9D}
+-define(TLS_RSA_WITH_AES_256_GCM_SHA384, <<?BYTE(16#00), ?BYTE(16#9D)>>).
+
+%%      TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 = {0x00,0x9E}
+-define(TLS_DHE_RSA_WITH_AES_128_GCM_SHA256, <<?BYTE(16#00), ?BYTE(16#9E)>>).
+
+%%      TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 = {0x00,0x9F}
+-define(TLS_DHE_RSA_WITH_AES_256_GCM_SHA384, <<?BYTE(16#00), ?BYTE(16#9F)>>).
+
+%%      TLS_DH_RSA_WITH_AES_128_GCM_SHA256  = {0x00,0xA0}
+-define(TLS_DH_RSA_WITH_AES_128_GCM_SHA256, <<?BYTE(16#00), ?BYTE(16#A0)>>).
+
+%%      TLS_DH_RSA_WITH_AES_256_GCM_SHA384  = {0x00,0xA1}
+-define(TLS_DH_RSA_WITH_AES_256_GCM_SHA384, <<?BYTE(16#00), ?BYTE(16#A1)>>).
+
+%%      TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 = {0x00,0xA2}
+-define(TLS_DHE_DSS_WITH_AES_128_GCM_SHA256, <<?BYTE(16#00), ?BYTE(16#A2)>>).
+
+%%      TLS_DHE_DSS_WITH_AES_256_GCM_SHA384 = {0x00,0xA3}
+-define(TLS_DHE_DSS_WITH_AES_256_GCM_SHA384, <<?BYTE(16#00), ?BYTE(16#A3)>>).
+
+%%      TLS_DH_DSS_WITH_AES_128_GCM_SHA256  = {0x00,0xA4}
+-define(TLS_DH_DSS_WITH_AES_128_GCM_SHA256, <<?BYTE(16#00), ?BYTE(16#A4)>>).
+
+%%      TLS_DH_DSS_WITH_AES_256_GCM_SHA384  = {0x00,0xA5}
+-define(TLS_DH_DSS_WITH_AES_256_GCM_SHA384, <<?BYTE(16#00), ?BYTE(16#A5)>>).
+
+%%      TLS_DH_anon_WITH_AES_128_GCM_SHA256 = {0x00,0xA6}
+-define(TLS_DH_anon_WITH_AES_128_GCM_SHA256, <<?BYTE(16#00), ?BYTE(16#A6)>>).
+
+%%      TLS_DH_anon_WITH_AES_256_GCM_SHA384 = {0x00,0xA7}
+-define(TLS_DH_anon_WITH_AES_256_GCM_SHA384, <<?BYTE(16#00), ?BYTE(16#A7)>>).
+
+%%% ECC AES-GCM Cipher Suites RFC 5289
+
+%%      TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256  = {0xC0,0x2B};
+-define(TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, <<?BYTE(16#C0), ?BYTE(16#2B)>>).
+
+%%      TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384  = {0xC0,0x2C};
+-define(TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, <<?BYTE(16#C0), ?BYTE(16#2C)>>).
+
+%%      TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256   = {0xC0,0x2D};
+-define(TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256, <<?BYTE(16#C0), ?BYTE(16#2D)>>).
+
+%%      TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384   = {0xC0,0x2E};
+-define(TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384, <<?BYTE(16#C0), ?BYTE(16#2E)>>).
+
+%%      TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256    = {0xC0,0x2F};
+-define(TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, <<?BYTE(16#C0), ?BYTE(16#2F)>>).
+
+%%      TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384    = {0xC0,0x30};
+-define(TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, <<?BYTE(16#C0), ?BYTE(16#30)>>).
+
+%%      TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256     = {0xC0,0x31};
+-define(TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256, <<?BYTE(16#C0), ?BYTE(16#31)>>).
+
+%%      TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384     = {0xC0,0x32};
+-define(TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384, <<?BYTE(16#C0), ?BYTE(16#32)>>).
+
+%%% Chacha20/Poly1305 Suites draft-agl-tls-chacha20poly1305-04
+
+%%      TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256   = {0xcc, 0x13}
+-define(TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, <<?BYTE(16#CC), ?BYTE(16#13)>>).
+
+%%      TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 = {0xcc, 0x14}
+-define(TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, <<?BYTE(16#CC), ?BYTE(16#14)>>).
+
+%%      TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256     = {0xcc, 0x15}
+-define(TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256, <<?BYTE(16#CC), ?BYTE(16#15)>>).
+
 -endif. % -ifdef(ssl_cipher).
diff --git a/lib/ssl/src/ssl_config.erl b/lib/ssl/src/ssl_config.erl
index 545b8aa0f6..fc8b214a29 100644
--- a/lib/ssl/src/ssl_config.erl
+++ b/lib/ssl/src/ssl_config.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2007-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2007-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -31,13 +31,13 @@ init(SslOpts, Role) ->
     
     init_manager_name(SslOpts#ssl_options.erl_dist),
 
-    {ok, CertDbRef, CertDbHandle, FileRefHandle, PemCacheHandle, CacheHandle, OwnCert} 
+    {ok, CertDbRef, CertDbHandle, FileRefHandle, PemCacheHandle, CacheHandle, CRLDbHandle, OwnCert} 
 	= init_certificates(SslOpts, Role),
     PrivateKey =
 	init_private_key(PemCacheHandle, SslOpts#ssl_options.key, SslOpts#ssl_options.keyfile,
 			 SslOpts#ssl_options.password, Role),
     DHParams = init_diffie_hellman(PemCacheHandle, SslOpts#ssl_options.dh, SslOpts#ssl_options.dhfile, Role),
-    {ok, CertDbRef, CertDbHandle, FileRefHandle, CacheHandle, OwnCert, PrivateKey, DHParams}.
+    {ok, CertDbRef, CertDbHandle, FileRefHandle, CacheHandle, CRLDbHandle, OwnCert, PrivateKey, DHParams}.
 
 init_manager_name(false) ->
     put(ssl_manager, ssl_manager:manager_name(normal));
@@ -46,9 +46,11 @@ init_manager_name(true) ->
 
 init_certificates(#ssl_options{cacerts = CaCerts,
 			       cacertfile = CACertFile,
-			       certfile = CertFile,
-			       cert = Cert}, Role) ->
-    {ok, CertDbRef, CertDbHandle, FileRefHandle, PemCacheHandle, CacheHandle} =
+			       certfile = CertFile,			   
+			       cert = Cert,
+			       crl_cache = CRLCache
+			      }, Role) ->
+    {ok, CertDbRef, CertDbHandle, FileRefHandle, PemCacheHandle, CacheHandle, CRLDbInfo} =
 	try 
 	    Certs = case CaCerts of
 			undefined ->
@@ -56,39 +58,40 @@ init_certificates(#ssl_options{cacerts = CaCerts,
 			_ ->
 			    {der, CaCerts}
 		    end,
-	    {ok, _, _, _, _, _} = ssl_manager:connection_init(Certs, Role)
+	    {ok, _, _, _, _, _, _} = ssl_manager:connection_init(Certs, Role, CRLCache)
 	catch
 	    _:Reason ->
 		file_error(CACertFile, {cacertfile, Reason})
 	end,
     init_certificates(Cert, CertDbRef, CertDbHandle, FileRefHandle, PemCacheHandle, 
-		      CacheHandle, CertFile, Role).
+		      CacheHandle, CRLDbInfo, CertFile, Role).
 
-init_certificates(undefined, CertDbRef, CertDbHandle, FileRefHandle, PemCacheHandle, CacheHandle, <<>>, _) ->
-    {ok, CertDbRef, CertDbHandle, FileRefHandle, PemCacheHandle, CacheHandle, undefined};
+init_certificates(undefined, CertDbRef, CertDbHandle, FileRefHandle, PemCacheHandle, CacheHandle, 
+		  CRLDbInfo, <<>>, _) ->
+    {ok, CertDbRef, CertDbHandle, FileRefHandle, PemCacheHandle, CacheHandle, CRLDbInfo, undefined};
 
 init_certificates(undefined, CertDbRef, CertDbHandle, FileRefHandle, PemCacheHandle, 
-		  CacheHandle, CertFile, client) ->
+		  CacheHandle, CRLDbInfo, CertFile, client) ->
     try 
 	%% Ignoring potential proxy-certificates see: 
 	%% http://dev.globus.org/wiki/Security/ProxyFileFormat
 	[OwnCert|_] = ssl_certificate:file_to_certificats(CertFile, PemCacheHandle),
-	{ok, CertDbRef, CertDbHandle, FileRefHandle, PemCacheHandle, CacheHandle, OwnCert}
+	{ok, CertDbRef, CertDbHandle, FileRefHandle, PemCacheHandle, CacheHandle, CRLDbInfo, OwnCert}
     catch _Error:_Reason  ->
-	    {ok, CertDbRef, CertDbHandle, FileRefHandle, PemCacheHandle, CacheHandle, undefined}
+	    {ok, CertDbRef, CertDbHandle, FileRefHandle, PemCacheHandle, CacheHandle, CRLDbInfo, undefined}
     end;
 
 init_certificates(undefined, CertDbRef, CertDbHandle, FileRefHandle, 
-		  PemCacheHandle, CacheRef, CertFile, server) ->
+		  PemCacheHandle, CacheRef, CRLDbInfo, CertFile, server) ->
     try
 	[OwnCert|_] = ssl_certificate:file_to_certificats(CertFile, PemCacheHandle),
-	{ok, CertDbRef, CertDbHandle, FileRefHandle, PemCacheHandle, CacheRef, OwnCert}
+	{ok, CertDbRef, CertDbHandle, FileRefHandle, PemCacheHandle, CacheRef, CRLDbInfo, OwnCert}
     catch
 	_:Reason ->
 	    file_error(CertFile, {certfile, Reason})	    
     end;
-init_certificates(Cert, CertDbRef, CertDbHandle, FileRefHandle, PemCacheHandle, CacheRef, _, _) ->
-    {ok, CertDbRef, CertDbHandle, FileRefHandle, PemCacheHandle, CacheRef, Cert}.
+init_certificates(Cert, CertDbRef, CertDbHandle, FileRefHandle, PemCacheHandle, CacheRef, CRLDbInfo, _, _) ->
+    {ok, CertDbRef, CertDbHandle, FileRefHandle, PemCacheHandle, CacheRef, CRLDbInfo, Cert}.
 
 init_private_key(_, undefined, <<>>, _Password, _Client) ->
     undefined;
diff --git a/lib/ssl/src/ssl_connection.erl b/lib/ssl/src/ssl_connection.erl
index b6059eac58..64fa7bab0d 100644
--- a/lib/ssl/src/ssl_connection.erl
+++ b/lib/ssl/src/ssl_connection.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2013-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2013-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -41,11 +41,12 @@
 
 %% User Events 
 -export([send/2, recv/3, close/1, shutdown/2,
-	 new_user/2, get_opts/2, set_opts/2, info/1, session_info/1, 
-	 peer_certificate/1, renegotiation/1, negotiated_next_protocol/1, prf/5	
+	 new_user/2, get_opts/2, set_opts/2, session_info/1, 
+	 peer_certificate/1, renegotiation/1, negotiated_protocol/1, prf/5,
+	 connection_information/1
 	]).
 
--export([handle_session/6]).
+-export([handle_session/7]).
 
 %% SSL FSM state functions 
 -export([hello/3, abbreviated/3, certify/3, cipher/3, connection/3]).
@@ -161,6 +162,14 @@ recv(Pid, Length, Timeout) ->
     sync_send_all_state_event(Pid, {recv, Length, Timeout}).
 
 %%--------------------------------------------------------------------
+-spec connection_information(pid()) -> {ok, list()} | {error, reason()}.
+%%
+%% Description: Get the SNI hostname
+%%--------------------------------------------------------------------
+connection_information(Pid) when is_pid(Pid) ->
+    sync_send_all_state_event(Pid, connection_information).
+
+%%--------------------------------------------------------------------
 -spec close(pid()) -> ok | {error, reason()}.  
 %%
 %% Description:  Close an ssl connection
@@ -191,12 +200,12 @@ new_user(ConnectionPid, User) ->
     sync_send_all_state_event(ConnectionPid, {new_user, User}).
 
 %%--------------------------------------------------------------------
--spec negotiated_next_protocol(pid()) -> {ok, binary()} | {error, reason()}.
+-spec negotiated_protocol(pid()) -> {ok, binary()} | {error, reason()}.
 %%
 %% Description:  Returns the negotiated protocol
 %%--------------------------------------------------------------------
-negotiated_next_protocol(ConnectionPid) ->
-    sync_send_all_state_event(ConnectionPid, negotiated_next_protocol).
+negotiated_protocol(ConnectionPid) ->
+    sync_send_all_state_event(ConnectionPid, negotiated_protocol).
 
 %%--------------------------------------------------------------------
 -spec get_opts(pid(), list()) -> {ok, list()} | {error, reason()}.    
@@ -214,14 +223,6 @@ set_opts(ConnectionPid, Options) ->
     sync_send_all_state_event(ConnectionPid, {set_opts, Options}).
 
 %%--------------------------------------------------------------------
--spec info(pid()) ->  {ok, {atom(), tuple()}} | {error, reason()}. 
-%%
-%% Description:  Returns ssl protocol and cipher used for the connection
-%%--------------------------------------------------------------------
-info(ConnectionPid) ->
-    sync_send_all_state_event(ConnectionPid, info). 
-
-%%--------------------------------------------------------------------
 -spec session_info(pid()) -> {ok, list()} | {error, reason()}. 
 %%
 %% Description:  Returns info about the ssl session
@@ -258,27 +259,26 @@ prf(ConnectionPid, Secret, Label, Seed, WantedLength) ->
 
 handle_session(#server_hello{cipher_suite = CipherSuite,
 			     compression_method = Compression}, 
-	       Version, NewId, ConnectionStates, NextProtocol, 
+	       Version, NewId, ConnectionStates, ProtoExt, Protocol0,
 	       #state{session = #session{session_id = OldId},
-		      negotiated_version = ReqVersion} = State0) ->
+		      negotiated_version = ReqVersion,
+			  negotiated_protocol = CurrentProtocol} = State0) ->
     {KeyAlgorithm, _, _, _} =
 	ssl_cipher:suite_definition(CipherSuite),
     
     PremasterSecret = make_premaster_secret(ReqVersion, KeyAlgorithm),
-    
-    NewNextProtocol = case NextProtocol of
-			  undefined ->
-			      State0#state.next_protocol;
-			  _ ->
-			      NextProtocol
-		      end,
-    
+
+	{ExpectNPN, Protocol} = case Protocol0 of
+		undefined -> {false, CurrentProtocol};
+		_ -> {ProtoExt =:= npn, Protocol0}
+	end,
+
     State = State0#state{key_algorithm = KeyAlgorithm,
 				 negotiated_version = Version,
 			 connection_states = ConnectionStates,
 			 premaster_secret = PremasterSecret,
-			 expecting_next_protocol_negotiation = NextProtocol =/= undefined,
-			 next_protocol = NewNextProtocol},
+			 expecting_next_protocol_negotiation = ExpectNPN,
+			 negotiated_protocol = Protocol},
     
     case ssl_session:is_new(OldId, NewId) of
 	true ->
@@ -371,7 +371,7 @@ abbreviated(#finished{verify_data = Data} = Finished,
 abbreviated(#next_protocol{selected_protocol = SelectedProtocol},
 	    #state{role = server, expecting_next_protocol_negotiation = true} = State0,
 	    Connection) ->
-    {Record, State} = Connection:next_record(State0#state{next_protocol = SelectedProtocol}),
+    {Record, State} = Connection:next_record(State0#state{negotiated_protocol = SelectedProtocol}),
     Connection:next_state(abbreviated, abbreviated, Record, State#state{expecting_next_protocol_negotiation = false});
 
 abbreviated(timeout, State, _) ->
@@ -411,11 +411,15 @@ certify(#certificate{} = Cert,
 	       role = Role,
 	       cert_db = CertDbHandle,
 	       cert_db_ref = CertDbRef,
+	       crl_db = CRLDbInfo,
 	       ssl_options = Opts} = State, Connection) ->
-    case ssl_handshake:certify(Cert, CertDbHandle, CertDbRef, Opts#ssl_options.depth,
+    case ssl_handshake:certify(Cert, CertDbHandle, CertDbRef, 
+			       Opts#ssl_options.depth,
 			       Opts#ssl_options.verify,
 			       Opts#ssl_options.verify_fun,
 			       Opts#ssl_options.partial_chain,
+			       Opts#ssl_options.crl_check,
+			       CRLDbInfo,		       
 			       Role) of
         {PeerCert, PublicKeyInfo} ->
 	    handle_peer_cert(Role, PeerCert, PublicKeyInfo,
@@ -589,7 +593,7 @@ cipher(#certificate_verify{signature = Signature, hashsign_algorithm = CertHashS
 
 %% client must send a next protocol message if we are expecting it
 cipher(#finished{}, #state{role = server, expecting_next_protocol_negotiation = true,
-			   next_protocol = undefined, negotiated_version = Version} = State0,
+			   negotiated_protocol = undefined, negotiated_version = Version} = State0,
        Connection) ->
     Connection:handle_own_alert(?ALERT_REC(?FATAL,?UNEXPECTED_MESSAGE), Version, cipher, State0);
 
@@ -619,7 +623,7 @@ cipher(#finished{verify_data = Data} = Finished,
 cipher(#next_protocol{selected_protocol = SelectedProtocol},
        #state{role = server, expecting_next_protocol_negotiation = true,
 	      expecting_finished = true} = State0, Connection) ->
-    {Record, State} = Connection:next_record(State0#state{next_protocol = SelectedProtocol}),
+    {Record, State} = Connection:next_record(State0#state{negotiated_protocol = SelectedProtocol}),
     Connection:next_state(cipher, cipher, Record, State#state{expecting_next_protocol_negotiation = false});
 
 cipher(timeout, State, _) ->
@@ -755,10 +759,10 @@ handle_sync_event({get_opts, OptTags}, _From, StateName,
 			 socket_options = SockOpts} = State) ->
     OptsReply = get_socket_opts(Transport, Socket, OptTags, SockOpts, []),
     {reply, OptsReply, StateName, State, get_timeout(State)};
-handle_sync_event(negotiated_next_protocol, _From, StateName, #state{next_protocol = undefined} = State) ->
-    {reply, {error, next_protocol_not_negotiated}, StateName, State, get_timeout(State)};
-handle_sync_event(negotiated_next_protocol, _From, StateName, #state{next_protocol = NextProtocol} = State) ->
-    {reply, {ok, NextProtocol}, StateName, State, get_timeout(State)};
+handle_sync_event(negotiated_protocol, _From, StateName, #state{negotiated_protocol = undefined} = State) ->
+    {reply, {error, protocol_not_negotiated}, StateName, State, get_timeout(State)};
+handle_sync_event(negotiated_protocol, _From, StateName, #state{negotiated_protocol = SelectedProtocol} = State) ->
+    {reply, {ok, SelectedProtocol}, StateName, State, get_timeout(State)};
 handle_sync_event({set_opts, Opts0}, _From, StateName0, 
 		  #state{socket_options = Opts1, 
 			 protocol_cb = Connection,
@@ -826,13 +830,6 @@ handle_sync_event({prf, Secret, Label, Seed, WantedLength}, _, StateName,
 		error:Reason -> {error, Reason}
 	    end,
     {reply, Reply, StateName, State, get_timeout(State)};
-handle_sync_event(info, _, StateName, 
-		  #state{negotiated_version = Version,
-			 session = #session{cipher_suite = Suite}} = State) ->
-    
-    AtomVersion = tls_record:protocol_version(Version),
-    {reply, {ok, {AtomVersion, ssl:suite_definition(Suite)}},
-     StateName, State, get_timeout(State)};
 handle_sync_event(session_info, _, StateName, 
 		  #state{session = #session{session_id = Id,
 					    cipher_suite = Suite}} = State) ->
@@ -842,7 +839,10 @@ handle_sync_event(session_info, _, StateName,
 handle_sync_event(peer_certificate, _, StateName, 
 		  #state{session = #session{peer_certificate = Cert}} 
 		  = State) ->
-    {reply, {ok, Cert}, StateName, State, get_timeout(State)}.
+    {reply, {ok, Cert}, StateName, State, get_timeout(State)};
+handle_sync_event(connection_information, _, StateName, #state{sni_hostname = SNIHostname, session = #session{cipher_suite = CipherSuite}, negotiated_version = Version} = State) ->
+    {reply, {ok, [{protocol, tls_record:protocol_version(Version)}, {cipher_suite, ssl:suite_definition(CipherSuite)}, {sni_hostname, SNIHostname}]}, StateName, State, get_timeout(State)}.
+
 
 handle_info({ErrorTag, Socket, econnaborted}, StateName,  
 	    #state{socket = Socket, transport_cb = Transport,
@@ -964,7 +964,7 @@ format_status(terminate, [_, State]) ->
 %%% Internal functions
 %%--------------------------------------------------------------------
 ssl_config(Opts, Role, State) ->
-    {ok, Ref, CertDbHandle, FileRefHandle, CacheHandle, OwnCert, Key, DHParams} = 
+    {ok, Ref, CertDbHandle, FileRefHandle, CacheHandle, CRLDbInfo, OwnCert, Key, DHParams} = 
 	ssl_config:init(Opts, Role), 
     Handshake = ssl_handshake:init_handshake_history(),
     TimeStamp = calendar:datetime_to_gregorian_seconds({date(), time()}),
@@ -975,6 +975,7 @@ ssl_config(Opts, Role, State) ->
 		file_ref_db = FileRefHandle,
 		cert_db_ref = Ref,
 		cert_db = CertDbHandle,
+		crl_db = CRLDbInfo,
 		session_cache = CacheHandle,
 		private_key = Key,
 		diffie_hellman_params = DHParams,
@@ -1479,11 +1480,11 @@ finalize_handshake(State0, StateName, Connection) ->
 
 next_protocol(#state{role = server} = State, _) ->
     State;
-next_protocol(#state{next_protocol = undefined} = State, _) ->
+next_protocol(#state{negotiated_protocol = undefined} = State, _) ->
     State;
 next_protocol(#state{expecting_next_protocol_negotiation = false} = State, _) ->
     State;
-next_protocol(#state{next_protocol = NextProtocol} = State0, Connection) ->
+next_protocol(#state{negotiated_protocol = NextProtocol} = State0, Connection) ->
     NextProtocolMessage = ssl_handshake:next_protocol(NextProtocol),
     Connection:send_handshake(NextProtocolMessage, State0).
 
diff --git a/lib/ssl/src/ssl_connection.hrl b/lib/ssl/src/ssl_connection.hrl
index b9a1ef3a84..d95b51132a 100644
--- a/lib/ssl/src/ssl_connection.hrl
+++ b/lib/ssl/src/ssl_connection.hrl
@@ -1,8 +1,7 @@
-
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2013-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2013-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -53,6 +52,7 @@
           session               :: #session{} | secret_printout(),
 	  session_cache         :: db_handle(),
 	  session_cache_cb      :: atom(),
+	  crl_db                :: term(), 
           negotiated_version    :: ssl_record:ssl_version(),
           client_certificate_requested = false :: boolean(),
 	  key_algorithm         :: ssl_cipher:key_algo(),
@@ -78,9 +78,10 @@
 	  allow_renegotiate = true                    ::boolean(),
           expecting_next_protocol_negotiation = false ::boolean(),
 	  expecting_finished =                  false ::boolean(),
-          next_protocol = undefined                   :: undefined | binary(),
+          negotiated_protocol = undefined             :: undefined | binary(),
 	  client_ecc,          % {Curves, PointFmt}
-	  tracker              :: pid() %% Tracker process for listen socket
+	  tracker              :: pid(), %% Tracker process for listen socket
+	  sni_hostname = undefined
 	 }).
 
 -define(DEFAULT_DIFFIE_HELLMAN_PARAMS,
diff --git a/lib/ssl/src/ssl_crl.erl b/lib/ssl/src/ssl_crl.erl
new file mode 100644
index 0000000000..1a08d3c80a
--- /dev/null
+++ b/lib/ssl/src/ssl_crl.erl
@@ -0,0 +1,80 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2015-2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+
+%----------------------------------------------------------------------
+%% Purpose: CRL handling 
+%%----------------------------------------------------------------------
+
+-module(ssl_crl).
+
+-include("ssl_alert.hrl").
+-include("ssl_internal.hrl").
+-include_lib("public_key/include/public_key.hrl"). 
+
+-export([trusted_cert_and_path/3]).
+
+trusted_cert_and_path(CRL, {SerialNumber, Issuer},{Db, DbRef} = DbHandle) -> 
+    case ssl_pkix_db:lookup_trusted_cert(Db, DbRef, SerialNumber, Issuer) of
+	undefined ->
+	    trusted_cert_and_path(CRL, issuer_not_found, DbHandle);
+	{ok, {_, OtpCert}}  ->
+	    {ok, Root, Chain} = ssl_certificate:certificate_chain(OtpCert, Db, DbRef),
+	    {ok, Root,  lists:reverse(Chain)}
+    end;
+
+trusted_cert_and_path(CRL, issuer_not_found, {Db, DbRef} = DbHandle) -> 
+    try find_issuer(CRL, DbHandle) of
+	OtpCert ->
+	    {ok, Root, Chain} = ssl_certificate:certificate_chain(OtpCert, Db, DbRef),
+	    {ok, Root, lists:reverse(Chain)}
+    catch
+	throw:_ ->
+	    {error, issuer_not_found}
+    end.
+
+find_issuer(CRL, {Db,_}) ->
+    Issuer = public_key:pkix_normalize_name(public_key:pkix_crl_issuer(CRL)),
+    IsIssuerFun =
+	fun({_Key, {_Der,ErlCertCandidate}}, Acc) ->
+		verify_crl_issuer(CRL, ErlCertCandidate, Issuer, Acc);
+	   (_, Acc) ->
+		Acc
+	end,
+    
+    try ssl_pkix_db:foldl(IsIssuerFun, issuer_not_found, Db) of
+	issuer_not_found ->
+	    {error, issuer_not_found}
+    catch 
+	{ok, IssuerCert}  ->
+	    IssuerCert
+    end.
+
+
+verify_crl_issuer(CRL, ErlCertCandidate, Issuer, NotIssuer) ->
+    TBSCert =  ErlCertCandidate#'OTPCertificate'.tbsCertificate,
+    case public_key:pkix_normalize_name(TBSCert#'OTPTBSCertificate'.subject) of
+	Issuer ->
+	    case public_key:pkix_crl_verify(CRL, ErlCertCandidate) of
+		true ->
+		    throw({ok, ErlCertCandidate});
+		false ->
+		    NotIssuer
+	    end;
+	_ ->
+	    NotIssuer
+    end.
diff --git a/lib/ssl/src/ssl_crl_cache.erl b/lib/ssl/src/ssl_crl_cache.erl
new file mode 100644
index 0000000000..b9d6a61c3b
--- /dev/null
+++ b/lib/ssl/src/ssl_crl_cache.erl
@@ -0,0 +1,179 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2015-2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+
+%----------------------------------------------------------------------
+%% Purpose: Simple default CRL cache 
+%%----------------------------------------------------------------------
+
+-module(ssl_crl_cache).
+
+-include("ssl_internal.hrl").
+-include_lib("public_key/include/public_key.hrl"). 
+
+-behaviour(ssl_crl_cache_api).
+
+-export([lookup/2, select/2, fresh_crl/2]).
+-export([insert/1, insert/2, delete/1]).
+
+%%====================================================================
+%% Cache callback API
+%%====================================================================
+
+lookup(#'DistributionPoint'{distributionPoint = {fullName, Names}},
+       CRLDbInfo) ->
+    get_crls(Names, CRLDbInfo);
+lookup(_,_) ->
+    not_available.
+
+select(Issuer, {{_Cache, Mapping},_}) ->
+    case ssl_pkix_db:lookup(Issuer, Mapping) of
+	undefined ->
+	    [];
+	CRLs ->
+	    CRLs
+    end.
+
+fresh_crl(#'DistributionPoint'{distributionPoint = {fullName, Names}}, CRL) ->
+    case get_crls(Names, undefined) of
+	not_available ->
+	    CRL;
+	[NewCRL] ->
+	    NewCRL
+    end.
+
+%%====================================================================
+%% API 
+%%====================================================================
+
+insert(CRLs) ->
+    insert(?NO_DIST_POINT, CRLs).
+
+insert(URI, {file, File}) when is_list(URI) ->				     
+    case file:read_file(File) of
+	{ok, PemBin} ->
+	    PemEntries = public_key:pem_decode(PemBin),
+	    CRLs = [ CRL || {'CertificateList', CRL, not_encrypted} 
+				<- PemEntries],
+	    do_insert(URI, CRLs);
+	Error ->
+	    Error
+    end;
+insert(URI, {der, CRLs}) ->	
+    do_insert(URI, CRLs).
+
+delete({file, File}) ->
+    case file:read_file(File) of
+	{ok, PemBin} ->
+	    PemEntries = public_key:pem_decode(PemBin),
+	    CRLs = [ CRL || {'CertificateList', CRL, not_encrypted} 
+				<- PemEntries],
+	    ssl_manager:delete_crls({?NO_DIST_POINT, CRLs});
+	Error ->
+	    Error
+    end;
+delete({der, CRLs}) ->	
+    ssl_manager:delete_crls({?NO_DIST_POINT, CRLs});
+
+delete(URI) ->
+    case http_uri:parse(URI) of
+	{ok, {http, _, _ , _, Path,_}} -> 
+	    ssl_manager:delete_crls(string:strip(Path, left, $/));
+	_ ->
+	    {error, {only_http_distribution_points_supported, URI}}
+    end.
+
+%%--------------------------------------------------------------------
+%%% Internal functions
+%%--------------------------------------------------------------------
+do_insert(URI, CRLs) ->
+    case http_uri:parse(URI) of
+	{ok, {http, _, _ , _, Path,_}} -> 
+	    ssl_manager:insert_crls(string:strip(Path, left, $/), CRLs);
+	_ ->
+	    {error, {only_http_distribution_points_supported, URI}}
+    end.
+
+get_crls([], _) ->
+    not_available;
+get_crls([{uniformResourceIdentifier, "http"++_ = URL} | Rest], 
+	 CRLDbInfo) ->
+    case cache_lookup(URL, CRLDbInfo) of
+	[] ->
+	   handle_http(URL, Rest, CRLDbInfo);
+	CRLs ->
+	    CRLs
+    end;
+get_crls([ _| Rest], CRLDbInfo) ->
+    %% unsupported CRL location
+    get_crls(Rest, CRLDbInfo).
+
+http_lookup(URL, Rest, CRLDbInfo, Timeout) ->
+    case application:ensure_started(inets) of
+	ok ->
+	    http_get(URL, Rest, CRLDbInfo, Timeout);  
+	_ ->
+	    get_crls(Rest, CRLDbInfo)
+    end.
+
+http_get(URL, Rest, CRLDbInfo, Timeout) ->
+    case httpc:request(get, {URL, [{"connection", "close"}]}, 
+		       [{timeout, Timeout}], [{body_format, binary}]) of
+        {ok, {_Status, _Headers, Body}} ->
+            case Body of
+                <<"-----BEGIN", _/binary>> ->
+                    Pem = public_key:pem_decode(Body),
+		    lists:filtermap(fun({'CertificateList', 
+					 CRL, not_encrypted}) ->
+					    {true, CRL};
+				       (_) ->
+					    false
+				    end, Pem);
+		_ ->
+		    try public_key:der_decode('CertificateList', Body) of
+			_ ->
+			    [Body]
+		    catch
+			_:_ ->
+			    get_crls(Rest, CRLDbInfo)
+		    end   
+	    end;
+        {error, _Reason} ->
+            get_crls(Rest, CRLDbInfo)
+    end.
+
+cache_lookup(_, undefined) ->
+    [];
+cache_lookup(URL, {{Cache, _}, _}) ->
+    {ok, {_, _, _ , _, Path,_}} = http_uri:parse(URL), 
+    case ssl_pkix_db:lookup(string:strip(Path, left, $/), Cache) of
+	undefined ->
+	    [];
+	CRLs ->
+	    CRLs
+    end.
+
+handle_http(URI, Rest, {_,  [{http, Timeout}]} = CRLDbInfo) ->
+    CRLs = http_lookup(URI, Rest, CRLDbInfo, Timeout),
+    %% Uncomment to improve performance, but need to 
+    %% implement cache limit and or cleaning to prevent 
+    %% DoS attack possibilities
+    %%insert(URI, {der, CRLs}),
+    CRLs;
+handle_http(_, Rest, CRLDbInfo) ->
+    get_crls(Rest, CRLDbInfo).
+
diff --git a/lib/ssl/src/ssl_crl_cache_api.erl b/lib/ssl/src/ssl_crl_cache_api.erl
new file mode 100644
index 0000000000..79db65104b
--- /dev/null
+++ b/lib/ssl/src/ssl_crl_cache_api.erl
@@ -0,0 +1,30 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2015-2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+%%
+
+-module(ssl_crl_cache_api).
+
+-include_lib("public_key/include/public_key.hrl"). 
+
+-type db_handle() :: term(). 
+
+-callback lookup(#'DistributionPoint'{}, db_handle()) -> not_available | [public_key:der_encoded()].
+-callback select(term(), db_handle()) ->  [public_key:der_encoded()].
+-callback fresh_crl(#'DistributionPoint'{}, public_key:der_encoded()) -> public_key:der_encoded().
diff --git a/lib/ssl/src/ssl_handshake.erl b/lib/ssl/src/ssl_handshake.erl
index 29b64f7a81..12a17cb6ac 100644
--- a/lib/ssl/src/ssl_handshake.erl
+++ b/lib/ssl/src/ssl_handshake.erl
@@ -49,7 +49,7 @@
 	 finished/5,  next_protocol/1]).
 
 %% Handle handshake messages
--export([certify/8, client_certificate_verify/6, certificate_verify/6, verify_signature/5,
+-export([certify/10, client_certificate_verify/6, certificate_verify/6, verify_signature/5,
 	 master_secret/5, server_key_exchange_hash/2, verify_connection/6,
 	 init_handshake_history/0, update_handshake_history/2, verify_server_key/5
 	]).
@@ -136,6 +136,7 @@ client_hello_extensions(Host, Version, CipherSuites, SslOpts, ConnectionStates,
        hash_signs = advertised_hash_signs(Version),
        ec_point_formats = EcPointFormats,
        elliptic_curves = EllipticCurves,
+       alpn = encode_alpn(SslOpts#ssl_options.alpn_advertised_protocols, Renegotiation),
        next_protocol_negotiation =
 	   encode_client_protocol_negotiation(SslOpts#ssl_options.next_protocol_selector,
 					      Renegotiation),
@@ -149,7 +150,7 @@ client_hello_extensions(Host, Version, CipherSuites, SslOpts, ConnectionStates,
 certificate(OwnCert, CertDbHandle, CertDbRef, client) ->
     Chain =
 	case ssl_certificate:certificate_chain(OwnCert, CertDbHandle, CertDbRef) of
-	    {ok, CertChain} ->
+	    {ok, _,  CertChain} ->
 		CertChain;
 	    {error, _} ->
 		%% If no suitable certificate is available, the client
@@ -161,7 +162,7 @@ certificate(OwnCert, CertDbHandle, CertDbRef, client) ->
 
 certificate(OwnCert, CertDbHandle, CertDbRef, server) ->
     case ssl_certificate:certificate_chain(OwnCert, CertDbHandle, CertDbRef) of
-	{ok, Chain} ->
+	{ok, _, Chain} ->
 	    #certificate{asn1_certificates = Chain};
 	{error, _} ->
 	    ?ALERT_REC(?FATAL, ?INTERNAL_ERROR)
@@ -242,7 +243,7 @@ key_exchange(client, _Version, {dh, PublicKey}) ->
 		dh_public = PublicKey}
 	       };
 
-key_exchange(client, _Version, {ecdh, #'ECPrivateKey'{publicKey = {0, ECPublicKey}}}) ->
+key_exchange(client, _Version, {ecdh, #'ECPrivateKey'{publicKey =  ECPublicKey}}) ->
     #client_key_exchange{
 	      exchange_keys = #client_ec_diffie_hellman_public{
 		dh_public = ECPublicKey}
@@ -283,7 +284,7 @@ key_exchange(server, Version, {dh, {PublicKey, _},
     enc_server_key_exchange(Version, ServerDHParams, HashSign,
 			    ClientRandom, ServerRandom, PrivateKey);
 
-key_exchange(server, Version, {ecdh,  #'ECPrivateKey'{publicKey =  {0, ECPublicKey},
+key_exchange(server, Version, {ecdh,  #'ECPrivateKey'{publicKey =  ECPublicKey,
 						      parameters = ECCurve}, HashSign,
 			       ClientRandom, ServerRandom, PrivateKey}) ->
     ServerECParams = #server_ecdh_params{curve = ECCurve, public = ECPublicKey},
@@ -383,49 +384,24 @@ verify_signature(_Version, Hash, {HashAlgo, ecdsa}, Signature,
 
 %%--------------------------------------------------------------------
 -spec certify(#certificate{}, db_handle(), certdb_ref(), integer() | nolimit,
-	      verify_peer | verify_none, {fun(), term}, fun(),
+	      verify_peer | verify_none, {fun(), term}, fun(), term(), term(),
 	      client | server) ->  {der_cert(), public_key_info()} | #alert{}.
 %%
 %% Description: Handles a certificate handshake message
 %%--------------------------------------------------------------------
 certify(#certificate{asn1_certificates = ASN1Certs}, CertDbHandle, CertDbRef,
-	MaxPathLen, _Verify, VerifyFunAndState, PartialChain, Role) ->
+	MaxPathLen, _Verify, ValidationFunAndState0, PartialChain, CRLCheck, CRLDbHandle, Role) ->
     [PeerCert | _] = ASN1Certs,
-
-    ValidationFunAndState =
-	case VerifyFunAndState of
-	    undefined ->
-		{fun(OtpCert, ExtensionOrVerifyResult, SslState) ->
-			 ssl_certificate:validate_extension(OtpCert,
-							    ExtensionOrVerifyResult, SslState)
-		 end, Role};
-	    {Fun, UserState0} ->
-		{fun(OtpCert, {extension, _} = Extension, {SslState, UserState}) ->
-			 case ssl_certificate:validate_extension(OtpCert,
-								 Extension,
-								 SslState) of
-			     {valid, NewSslState} ->
-				 {valid, {NewSslState, UserState}};
-			     {fail, Reason} ->
-				 apply_user_fun(Fun, OtpCert, Reason, UserState,
-						SslState);
-			     {unknown, _} ->
-				 apply_user_fun(Fun, OtpCert,
-						Extension, UserState, SslState)
-			 end;
-		    (OtpCert, VerifyResult, {SslState, UserState}) ->
-			 apply_user_fun(Fun, OtpCert, VerifyResult, UserState,
-					SslState)
-		 end, {Role, UserState0}}
-	end,
+        
+    ValidationFunAndState = validation_fun_and_state(ValidationFunAndState0, Role, 
+						     CertDbHandle, CertDbRef,  CRLCheck, CRLDbHandle),
 
     try
-	{TrustedErlCert, CertPath}  =
+	{TrustedCert, CertPath}  =
 	    ssl_certificate:trusted_cert_and_path(ASN1Certs, CertDbHandle, CertDbRef, PartialChain),
-	case public_key:pkix_path_validation(TrustedErlCert,
-					      CertPath,
-					     [{max_path_length,
-					       MaxPathLen},
+	case public_key:pkix_path_validation(TrustedCert,
+					     CertPath,
+					     [{max_path_length, MaxPathLen},
 					      {verify_fun, ValidationFunAndState}]) of
 	    {ok, {PublicKeyInfo,_}} ->
 		{PeerCert, PublicKeyInfo};
@@ -604,11 +580,10 @@ prf({3,_N}, Secret, Label, Seed, WantedLength) ->
 %%--------------------------------------------------------------------
 select_hashsign(_, undefined, _Version) ->
     {null, anon};
-select_hashsign(undefined,  Cert, Version) ->
-    #'OTPCertificate'{tbsCertificate = TBSCert} = public_key:pkix_decode_cert(Cert, otp),
-    #'OTPSubjectPublicKeyInfo'{algorithm = {_,Algo, _}} = TBSCert#'OTPTBSCertificate'.subjectPublicKeyInfo,
-    select_hashsign_algs(undefined, Algo, Version);
-select_hashsign(#hash_sign_algos{hash_sign_algos = HashSigns}, Cert, Version) ->
+%% The signature_algorithms extension was introduced with TLS 1.2. Ignore it if we have
+%% negotiated a lower version.
+select_hashsign(#hash_sign_algos{hash_sign_algos = HashSigns}, Cert, {Major, Minor} = Version)
+  when Major >= 3 andalso Minor >= 3 ->
     #'OTPCertificate'{tbsCertificate = TBSCert} =public_key:pkix_decode_cert(Cert, otp),
     #'OTPSubjectPublicKeyInfo'{algorithm = {_,Algo, _}} = TBSCert#'OTPTBSCertificate'.subjectPublicKeyInfo,
     DefaultHashSign = {_, Sign} = select_hashsign_algs(undefined, Algo, Version),
@@ -626,7 +601,11 @@ select_hashsign(#hash_sign_algos{hash_sign_algos = HashSigns}, Cert, Version) ->
 	    DefaultHashSign;
 	[HashSign| _] ->
 	    HashSign
-    end.
+    end;
+select_hashsign(_, Cert, Version) ->
+    #'OTPCertificate'{tbsCertificate = TBSCert} = public_key:pkix_decode_cert(Cert, otp),
+    #'OTPSubjectPublicKeyInfo'{algorithm = {_,Algo, _}} = TBSCert#'OTPTBSCertificate'.subjectPublicKeyInfo,
+    select_hashsign_algs(undefined, Algo, Version).
 
 %%--------------------------------------------------------------------
 -spec select_hashsign_algs(#hash_sign_algos{}| undefined, oid(), ssl_record:ssl_version()) ->
@@ -791,6 +770,11 @@ encode_hello_extensions([], Acc) ->
     Size = byte_size(Acc),
     <<?UINT16(Size), Acc/binary>>;
 
+encode_hello_extensions([#alpn{extension_data = ExtensionData} | Rest], Acc) ->
+	Len = byte_size(ExtensionData),
+    ExtLen = Len + 2,
+	encode_hello_extensions(Rest, <<?UINT16(?ALPN_EXT), ?UINT16(ExtLen), ?UINT16(Len),
+					ExtensionData/binary, Acc/binary>>);
 encode_hello_extensions([#next_protocol_negotiation{extension_data = ExtensionData} | Rest], Acc) ->
     Len = byte_size(ExtensionData),
     encode_hello_extensions(Rest, <<?UINT16(?NEXTPROTONEG_EXT), ?UINT16(Len),
@@ -889,6 +873,25 @@ decode_client_key(ClientKey, Type, Version) ->
 decode_server_key(ServerKey, Type, Version) ->
     dec_server_key(ServerKey, key_exchange_alg(Type), Version).
 
+%%
+%% Description: Encode and decode functions for ALPN extension data.
+%%--------------------------------------------------------------------
+
+%% While the RFC opens the door to allow ALPN during renegotiation, in practice
+%% this does not work and it is recommended to ignore any ALPN extension during
+%% renegotiation, as done here.
+encode_alpn(_, true) ->
+    undefined;
+encode_alpn(undefined, _) ->
+    undefined;
+encode_alpn(Protocols, _) ->
+    #alpn{extension_data = lists:foldl(fun encode_protocol/2, <<>>, Protocols)}.
+
+decode_alpn(undefined) ->
+    undefined;
+decode_alpn(#alpn{extension_data=Data}) ->
+    decode_protocols(Data, []).
+
 encode_client_protocol_negotiation(undefined, _) ->
     undefined;
 encode_client_protocol_negotiation(_, false) ->
@@ -1151,8 +1154,10 @@ handle_client_hello_extensions(RecordCB, Random, ClientCipherSuites,
 			       #hello_extensions{renegotiation_info = Info,
 						 srp = SRP,
 						 ec_point_formats = ECCFormat,
+                         alpn = ALPN,
 						 next_protocol_negotiation = NextProtocolNegotiation}, Version,
-			       #ssl_options{secure_renegotiate = SecureRenegotation} = Opts,
+			       #ssl_options{secure_renegotiate = SecureRenegotation,
+                                            alpn_preferred_protocols = ALPNPreferredProtocols} = Opts,
 			       #session{cipher_suite = NegotiatedCipherSuite,
 					compression_method = Compression} = Session0,
 			       ConnectionStates0, Renegotiation) ->
@@ -1161,19 +1166,34 @@ handle_client_hello_extensions(RecordCB, Random, ClientCipherSuites,
 						      Random, NegotiatedCipherSuite, 
 						      ClientCipherSuites, Compression,
 						      ConnectionStates0, Renegotiation, SecureRenegotation),
-    ProtocolsToAdvertise = handle_next_protocol_extension(NextProtocolNegotiation, Renegotiation, Opts),
-   
+
     ServerHelloExtensions =  #hello_extensions{
 				renegotiation_info = renegotiation_info(RecordCB, server,
 									ConnectionStates, Renegotiation),
-				ec_point_formats = server_ecc_extension(Version, ECCFormat),
-				next_protocol_negotiation =
-				    encode_protocols_advertised_on_server(ProtocolsToAdvertise)
+				ec_point_formats = server_ecc_extension(Version, ECCFormat)
 			       },
-    {Session, ConnectionStates, ServerHelloExtensions}.
+
+    %% If we receive an ALPN extension and have ALPN configured for this connection,
+    %% we handle it. Otherwise we check for the NPN extension.
+    if
+        ALPN =/= undefined, ALPNPreferredProtocols =/= undefined ->
+			case handle_alpn_extension(ALPNPreferredProtocols, decode_alpn(ALPN)) of
+                #alert{} = Alert ->
+                    Alert;
+                Protocol ->
+                    {Session, ConnectionStates, Protocol,
+                        ServerHelloExtensions#hello_extensions{alpn=encode_alpn([Protocol], Renegotiation)}}
+            end;
+        true ->
+            ProtocolsToAdvertise = handle_next_protocol_extension(NextProtocolNegotiation, Renegotiation, Opts),
+            {Session, ConnectionStates, undefined,
+				ServerHelloExtensions#hello_extensions{next_protocol_negotiation=
+                	encode_protocols_advertised_on_server(ProtocolsToAdvertise)}}
+    end.
 
 handle_server_hello_extensions(RecordCB, Random, CipherSuite, Compression,
 			       #hello_extensions{renegotiation_info = Info,
+                                                 alpn = ALPN,
 						 next_protocol_negotiation = NextProtocolNegotiation}, Version,
 			       #ssl_options{secure_renegotiate = SecureRenegotation,
 					    next_protocol_selector = NextProtoSelector},
@@ -1182,11 +1202,23 @@ handle_server_hello_extensions(RecordCB, Random, CipherSuite, Compression,
 						      CipherSuite, undefined,
 						      Compression, ConnectionStates0,
 						      Renegotiation, SecureRenegotation),
-    case handle_next_protocol(NextProtocolNegotiation, NextProtoSelector, Renegotiation) of
-	#alert{} = Alert ->
-	    Alert;
-	Protocol ->
-	    {ConnectionStates, Protocol}
+
+    %% If we receive an ALPN extension then this is the protocol selected,
+    %% otherwise handle the NPN extension.
+    case decode_alpn(ALPN) of
+        %% ServerHello contains exactly one protocol: the one selected.
+        %% We also ignore the ALPN extension during renegotiation (see encode_alpn/2).
+        [Protocol] when not Renegotiation ->
+            {ConnectionStates, alpn, Protocol};
+        undefined ->
+            case handle_next_protocol(NextProtocolNegotiation, NextProtoSelector, Renegotiation) of
+                #alert{} = Alert ->
+                    Alert;
+                Protocol ->
+                    {ConnectionStates, npn, Protocol}
+            end;
+        _ -> %% {error, _Reason} or a list of 0/2+ protocols.
+            ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE)
     end.
 
 select_version(RecordCB, ClientVersion, Versions) ->
@@ -1294,10 +1326,11 @@ hello_extensions_list(#hello_extensions{renegotiation_info = RenegotiationInfo,
 					hash_signs = HashSigns,
 					ec_point_formats = EcPointFormats,
 					elliptic_curves = EllipticCurves,
+                                        alpn = ALPN,
 					next_protocol_negotiation = NextProtocolNegotiation,
 					sni = Sni}) ->
     [Ext || Ext <- [RenegotiationInfo, SRP, HashSigns,
-		    EcPointFormats, EllipticCurves, NextProtocolNegotiation, Sni], Ext =/= undefined].
+		    EcPointFormats, EllipticCurves, ALPN, NextProtocolNegotiation, Sni], Ext =/= undefined].
 
 srp_user(#ssl_options{srp_identity = {UserName, _}}) ->
     #srp{username = UserName};
@@ -1376,15 +1409,66 @@ sni1(Hostname) ->
 %%--------------------------------------------------------------------
 %%% Internal functions
 %%--------------------------------------------------------------------
+validation_fun_and_state({Fun, UserState0}, Role,  CertDbHandle, CertDbRef, CRLCheck, CRLDbHandle) ->
+    {fun(OtpCert, {extension, _} = Extension, {SslState, UserState}) ->
+	     case ssl_certificate:validate(OtpCert,
+					   Extension,
+					   SslState) of
+		 {valid, NewSslState} ->
+		     {valid, {NewSslState, UserState}};
+		 {fail, Reason} ->
+		     apply_user_fun(Fun, OtpCert, Reason, UserState,
+				    SslState);
+		 {unknown, _} ->
+		     apply_user_fun(Fun, OtpCert,
+				    Extension, UserState, SslState)
+	     end;
+	(OtpCert, VerifyResult, {SslState, UserState}) ->
+	     apply_user_fun(Fun, OtpCert, VerifyResult, UserState,
+			    SslState)
+     end, {{Role, CertDbHandle, CertDbRef, CRLCheck, CRLDbHandle}, UserState0}};
+validation_fun_and_state(undefined, Role, CertDbHandle, CertDbRef, CRLCheck, CRLDbHandle) ->
+    {fun(OtpCert, {extension, _} = Extension, SslState) ->
+	     ssl_certificate:validate(OtpCert,
+				      Extension,
+				      SslState);
+	(OtpCert, VerifyResult, SslState) when (VerifyResult == valid) or (VerifyResult == valid_peer) -> 
+	     case crl_check(OtpCert, CRLCheck, CertDbHandle, CertDbRef, CRLDbHandle, VerifyResult) of
+		 valid ->
+		     {VerifyResult, SslState};
+		 Reason ->
+		     {fail, Reason}
+	     end;
+	(OtpCert, VerifyResult, SslState) ->
+	     ssl_certificate:validate(OtpCert,
+				      VerifyResult,
+				      SslState)
+     end, {Role, CertDbHandle, CertDbRef, CRLCheck, CRLDbHandle}}.
+
+apply_user_fun(Fun, OtpCert, VerifyResult, UserState0, 
+	       {_, CertDbHandle, CertDbRef, CRLCheck, CRLDbHandle} = SslState) when
+      (VerifyResult == valid) or (VerifyResult == valid_peer) ->
+    case Fun(OtpCert, VerifyResult, UserState0) of
+	{Valid, UserState} when (Valid == valid) or (Valid == valid_peer) ->
+	    case crl_check(OtpCert, CRLCheck, CertDbHandle, CertDbRef, CRLDbHandle, VerifyResult) of
+		valid ->
+		    {Valid, {SslState, UserState}};
+		Result ->
+		    apply_user_fun(Fun, OtpCert, Result, UserState, SslState)
+	    end;
+	{fail, _} = Fail ->
+	    Fail
+    end;
 apply_user_fun(Fun, OtpCert, ExtensionOrError, UserState0, SslState) ->
     case Fun(OtpCert, ExtensionOrError, UserState0) of
-	{valid, UserState} ->
-	    {valid, {SslState, UserState}};
+	{Valid, UserState} when (Valid == valid) or (Valid == valid_peer)->
+	    {Valid, {SslState, UserState}};
 	{fail, _} = Fail ->
 	    Fail;
 	{unknown, UserState} ->
 	    {unknown, {SslState, UserState}}
     end.
+
 path_validation_alert({bad_cert, cert_expired}) ->
     ?ALERT_REC(?FATAL, ?CERTIFICATE_EXPIRED);
 path_validation_alert({bad_cert, invalid_issuer}) ->
@@ -1395,8 +1479,10 @@ path_validation_alert({bad_cert, name_not_permitted}) ->
     ?ALERT_REC(?FATAL, ?BAD_CERTIFICATE);
 path_validation_alert({bad_cert, unknown_critical_extension}) ->
     ?ALERT_REC(?FATAL, ?UNSUPPORTED_CERTIFICATE);
-path_validation_alert({bad_cert, cert_revoked}) ->
+path_validation_alert({bad_cert, {revoked, _}}) ->
     ?ALERT_REC(?FATAL, ?CERTIFICATE_REVOKED);
+path_validation_alert({bad_cert, revocation_status_undetermined}) ->
+    ?ALERT_REC(?FATAL, ?BAD_CERTIFICATE);
 path_validation_alert({bad_cert, selfsigned_peer}) ->
     ?ALERT_REC(?FATAL, ?BAD_CERTIFICATE);
 path_validation_alert({bad_cert, unknown_ca}) ->
@@ -1437,6 +1523,7 @@ calc_finished({3, N}, Role, PrfAlgo, MasterSecret, Handshake) ->
 
 master_secret(_RecordCB, Version, MasterSecret,
 	      #security_parameters{
+		 bulk_cipher_algorithm = BCA,
 		 client_random = ClientRandom,
 		 server_random = ServerRandom,
 		 hash_size = HashSize,
@@ -1455,8 +1542,8 @@ master_secret(_RecordCB, Version, MasterSecret,
 	ssl_record:set_mac_secret(ClientWriteMacSecret, ServerWriteMacSecret,
 				  Role, ConnStates1),
 
-    ClientCipherState = #cipher_state{iv = ClientIV, key = ClientWriteKey},
-    ServerCipherState = #cipher_state{iv = ServerIV, key = ServerWriteKey},
+    ClientCipherState = ssl_cipher:cipher_init(BCA, ClientIV, ClientWriteKey),
+    ServerCipherState = ssl_cipher:cipher_init(BCA, ServerIV, ServerWriteKey),
     {MasterSecret,
      ssl_record:set_pending_cipher_state(ConnStates2, ClientCipherState,
 					 ServerCipherState, Role)}.
@@ -1681,6 +1768,10 @@ dec_server_key_signature(_, _, _) ->
 
 dec_hello_extensions(<<>>, Acc) ->
     Acc;
+dec_hello_extensions(<<?UINT16(?ALPN_EXT), ?UINT16(ExtLen), ?UINT16(Len), ExtensionData:Len/binary, Rest/binary>>, Acc)
+        when Len + 2 =:= ExtLen ->
+    ALPN = #alpn{extension_data = ExtensionData},
+    dec_hello_extensions(Rest, Acc#hello_extensions{alpn = ALPN});
 dec_hello_extensions(<<?UINT16(?NEXTPROTONEG_EXT), ?UINT16(Len), ExtensionData:Len/binary, Rest/binary>>, Acc) ->
     NextP = #next_protocol_negotiation{extension_data = ExtensionData},
     dec_hello_extensions(Rest, Acc#hello_extensions{next_protocol_negotiation = NextP});
@@ -1761,18 +1852,19 @@ dec_sni(<<?BYTE(_), ?UINT16(Len), _:Len, Rest/binary>>) -> dec_sni(Rest);
 dec_sni(_) -> undefined.
 
 decode_next_protocols({next_protocol_negotiation, Protocols}) ->
-    decode_next_protocols(Protocols, []).
-decode_next_protocols(<<>>, Acc) ->
+    decode_protocols(Protocols, []).
+
+decode_protocols(<<>>, Acc) ->
     lists:reverse(Acc);
-decode_next_protocols(<<?BYTE(Len), Protocol:Len/binary, Rest/binary>>, Acc) ->
+decode_protocols(<<?BYTE(Len), Protocol:Len/binary, Rest/binary>>, Acc) ->
     case Len of
         0 ->
-            {error, invalid_next_protocols};
+            {error, invalid_protocols};
         _ ->
-            decode_next_protocols(Rest, [Protocol|Acc])
+            decode_protocols(Rest, [Protocol|Acc])
     end;
-decode_next_protocols(_Bytes, _Acc) ->
-    {error, invalid_next_protocols}.
+decode_protocols(_Bytes, _Acc) ->
+    {error, invalid_protocols}.
 
 %% encode/decode stream of certificate data to/from list of certificate data
 certs_to_list(ASN1Certs) ->
@@ -1826,6 +1918,17 @@ key_exchange_alg(_) ->
 
 %%-------------Extension handling --------------------------------
 
+%% Receive protocols, choose one from the list, return it.
+handle_alpn_extension(_, {error, _Reason}) ->
+    ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE);
+handle_alpn_extension([], _) ->
+	?ALERT_REC(?FATAL, ?NO_APPLICATION_PROTOCOL);
+handle_alpn_extension([ServerProtocol|Tail], ClientProtocols) ->
+	case lists:member(ServerProtocol, ClientProtocols) of
+		true -> ServerProtocol;
+		false -> handle_alpn_extension(Tail, ClientProtocols)
+	end.
+
 handle_next_protocol(undefined,
 		     _NextProtocolSelector, _Renegotiating) ->
     undefined;
@@ -1955,3 +2058,70 @@ handle_psk_identity(_PSKIdentity, LookupFun)
     error;
 handle_psk_identity(PSKIdentity, {Fun, UserState}) ->
     Fun(psk, PSKIdentity, UserState).
+
+crl_check(_, false, _,_,_, _) ->
+    valid;
+crl_check(_, peer, _, _,_, valid) -> %% Do not check CAs with this option.
+    valid;
+crl_check(OtpCert, Check, CertDbHandle, CertDbRef, {Callback, CRLDbHandle}, _) ->
+    Options = [{issuer_fun, {fun(_DP, CRL, Issuer, DBInfo) ->
+				     ssl_crl:trusted_cert_and_path(CRL, Issuer, DBInfo)
+			     end, {CertDbHandle, CertDbRef}}}, 
+	       {update_crl, fun(DP, CRL) -> Callback:fresh_crl(DP, CRL) end}
+	      ],
+    case dps_and_crls(OtpCert, Callback, CRLDbHandle, ext) of
+	no_dps ->
+	    case dps_and_crls(OtpCert, Callback, CRLDbHandle, same_issuer) of
+		[] ->
+		    valid; %% No relevant CRL existed
+		DpsAndCRls ->
+		    crl_check_same_issuer(OtpCert, Check, DpsAndCRls, Options)		
+	    end;
+	DpsAndCRLs ->  %% This DP list may be empty if relevant CRLs existed 
+	    %% but could not be retrived, will result in {bad_cert, revocation_status_undetermined}
+	    case public_key:pkix_crls_validate(OtpCert, DpsAndCRLs, Options) of
+		{bad_cert, revocation_status_undetermined} ->
+		    crl_check_same_issuer(OtpCert, Check, dps_and_crls(OtpCert, Callback, 
+								       CRLDbHandle, same_issuer), Options);
+		Other ->
+		    Other
+	    end
+    end.
+
+crl_check_same_issuer(OtpCert, best_effort, Dps, Options) ->		
+    case public_key:pkix_crls_validate(OtpCert, Dps, Options) of 
+	{bad_cert, revocation_status_undetermined}  ->
+	    valid;
+	Other ->
+	    Other
+    end;
+crl_check_same_issuer(OtpCert, _, Dps, Options) ->    
+    public_key:pkix_crls_validate(OtpCert, Dps, Options).
+
+dps_and_crls(OtpCert, Callback, CRLDbHandle, ext) ->
+	case public_key:pkix_dist_points(OtpCert) of
+	    [] ->
+		no_dps;
+	    DistPoints ->
+		distpoints_lookup(DistPoints, Callback, CRLDbHandle) 
+	end;
+    
+dps_and_crls(OtpCert, Callback, CRLDbHandle, same_issuer) ->    
+    DP = #'DistributionPoint'{distributionPoint = {fullName, GenNames}} = 
+	public_key:pkix_dist_point(OtpCert),
+    CRLs = lists:flatmap(fun({directoryName, Issuer}) -> 
+				 Callback:select(Issuer, CRLDbHandle);
+			    (_) ->
+				 []
+			 end, GenNames),
+    [{DP, {CRL, public_key:der_decode('CertificateList', CRL)}} ||  CRL <- CRLs].
+
+distpoints_lookup([], _, _) ->
+    [];
+distpoints_lookup([DistPoint | Rest], Callback, CRLDbHandle) ->
+    case Callback:lookup(DistPoint, CRLDbHandle) of
+	not_available ->
+	    distpoints_lookup(Rest, Callback, CRLDbHandle);
+	CRLs ->
+	    [{DistPoint, {CRL, public_key:der_decode('CertificateList', CRL)}} ||  CRL <- CRLs]
+    end.	
diff --git a/lib/ssl/src/ssl_handshake.hrl b/lib/ssl/src/ssl_handshake.hrl
index 80284faef0..91f674a6fc 100644
--- a/lib/ssl/src/ssl_handshake.hrl
+++ b/lib/ssl/src/ssl_handshake.hrl
@@ -95,6 +95,7 @@
 -record(hello_extensions, {
 	  renegotiation_info,
 	  hash_signs,          % supported combinations of hashes/signature algos
+          alpn,
 	  next_protocol_negotiation = undefined, % [binary()]
 	  srp,
 	  ec_point_formats,
@@ -301,6 +302,14 @@
 	 }).
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% Application-Layer Protocol Negotiation  RFC 7301
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+-define(ALPN_EXT, 16).
+
+-record(alpn, {extension_data}).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %% Next Protocol Negotiation
 %% (http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-02)
 %% (http://technotes.googlecode.com/git/nextprotoneg.html)
diff --git a/lib/ssl/src/ssl_internal.hrl b/lib/ssl/src/ssl_internal.hrl
index a506fdf0a1..40eb3d0284 100644
--- a/lib/ssl/src/ssl_internal.hrl
+++ b/lib/ssl/src/ssl_internal.hrl
@@ -61,14 +61,19 @@
 -define(CDR_HDR_SIZE, 12).
 
 -define(DEFAULT_TIMEOUT, 5000).
+-define(NO_DIST_POINT, "http://dummy/no_distribution_point").
+-define(NO_DIST_POINT_PATH, "dummy/no_distribution_point").
 
 %% Common enumerate values in for SSL-protocols 
 -define(NULL, 0).
 -define(TRUE, 0).
 -define(FALSE, 1).
 
--define(ALL_SUPPORTED_VERSIONS, ['tlsv1.2', 'tlsv1.1', tlsv1, sslv3]).
--define(MIN_SUPPORTED_VERSIONS, ['tlsv1.1', tlsv1, sslv3]).
+%% sslv3 is considered insecure due to lack of padding check (Poodle attack)
+%% Keep as interop with legacy software but do not support as default 
+-define(ALL_AVAILABLE_VERSIONS, ['tlsv1.2', 'tlsv1.1', tlsv1, sslv3]).
+-define(ALL_SUPPORTED_VERSIONS, ['tlsv1.2', 'tlsv1.1', tlsv1]).
+-define(MIN_SUPPORTED_VERSIONS, ['tlsv1.1', tlsv1]).
 -define(ALL_DATAGRAM_SUPPORTED_VERSIONS, ['dtlsv1.2', dtlsv1]).
 -define(MIN_DATAGRAM_SUPPORTED_VERSIONS, ['dtlsv1.2', dtlsv1]).
 
@@ -112,15 +117,21 @@
 	  hibernate_after      :: boolean(),
 	  %% This option should only be set to true by inet_tls_dist
 	  erl_dist = false     :: boolean(),
-	  next_protocols_advertised = undefined, %% [binary()],
+          alpn_advertised_protocols = undefined :: [binary()] | undefined ,
+          alpn_preferred_protocols = undefined  :: [binary()] | undefined,
+	  next_protocols_advertised = undefined :: [binary()] | undefined,
 	  next_protocol_selector = undefined,  %% fun([binary()]) -> binary())
 	  log_alert             :: boolean(),
 	  server_name_indication = undefined,
+	  sni_hosts  :: [{inet:hostname(), [tuple()]}],
+	  sni_fun :: function() | undefined,
 	  %% Should the server prefer its own cipher order over the one provided by
 	  %% the client?
-	  honor_cipher_order = false,
-	  padding_check = true,
-	  fallback = false
+	  honor_cipher_order = false :: boolean(),
+	  padding_check = true       :: boolean(),
+	  fallback = false           :: boolean(),
+	  crl_check                  :: boolean() | peer | best_effort, 
+	  crl_cache
 	  }).
 
 -record(socket_options,
diff --git a/lib/ssl/src/ssl_manager.erl b/lib/ssl/src/ssl_manager.erl
index c4f1f7f193..396013825e 100644
--- a/lib/ssl/src/ssl_manager.erl
+++ b/lib/ssl/src/ssl_manager.erl
@@ -26,10 +26,11 @@
 
 %% Internal application API
 -export([start_link/1, start_link_dist/1,
-	 connection_init/2, cache_pem_file/2,
+	 connection_init/3, cache_pem_file/2,
 	 lookup_trusted_cert/4,
 	 new_session_id/1, clean_cert_db/2,
 	 register_session/2, register_session/3, invalidate_session/2,
+	 insert_crls/2, insert_crls/3, delete_crls/1, delete_crls/2, 
 	 invalidate_session/3, invalidate_pem/1, clear_pem_cache/0, manager_name/1]).
 
 % Spawn export
@@ -44,7 +45,8 @@
 -include_lib("kernel/include/file.hrl").
 
 -record(state, {
-	  session_cache,
+	  session_cache_client,
+	  session_cache_server,
 	  session_cache_cb,
 	  session_lifetime,
 	  certificate_db,
@@ -99,19 +101,21 @@ start_link_dist(Opts) ->
     gen_server:start_link({local, DistMangerName}, ?MODULE, [DistMangerName, Opts], []).
 
 %%--------------------------------------------------------------------
--spec connection_init(binary()| {der, list()}, client | server) ->
-			     {ok, certdb_ref(), db_handle(), db_handle(), db_handle(), db_handle()}.
+-spec connection_init(binary()| {der, list()}, client | server, 
+		      {Cb :: atom(), Handle:: term()}) ->
+			     {ok, certdb_ref(), db_handle(), db_handle(), 
+			      db_handle(), db_handle(), CRLInfo::term()}.
 %%			     
 %% Description: Do necessary initializations for a new connection.
 %%--------------------------------------------------------------------
-connection_init({der, _} = Trustedcerts, Role) ->
-    call({connection_init, Trustedcerts, Role});
+connection_init({der, _} = Trustedcerts, Role, CRLCache) ->
+    call({connection_init, Trustedcerts, Role, CRLCache});
 
-connection_init(<<>> = Trustedcerts, Role) ->
-    call({connection_init, Trustedcerts, Role});
+connection_init(<<>> = Trustedcerts, Role, CRLCache) ->
+    call({connection_init, Trustedcerts, Role, CRLCache});
 
-connection_init(Trustedcerts, Role) ->
-    call({connection_init, Trustedcerts, Role}).
+connection_init(Trustedcerts, Role, CRLCache) ->
+    call({connection_init, Trustedcerts, Role, CRLCache}).
 
 %%--------------------------------------------------------------------
 -spec cache_pem_file(binary(), term()) -> {ok, term()} | {error, reason()}.
@@ -123,7 +127,7 @@ cache_pem_file(File, DbHandle) ->
 	[{Content,_}] ->
 	    {ok, Content};
 	[Content] ->
-	   {ok, Content};
+	    {ok, Content};
 	undefined ->
 	    call({cache_pem, File})
     end.
@@ -192,11 +196,28 @@ invalidate_session(Host, Port, Session) ->
 invalidate_session(Port, Session) ->
     cast({invalidate_session, Port, Session}).
 
-
 -spec invalidate_pem(File::binary()) -> ok.
 invalidate_pem(File) ->
     cast({invalidate_pem, File}).
 
+insert_crls(Path, CRLs)->
+    insert_crls(Path, CRLs, normal).
+insert_crls(?NO_DIST_POINT_PATH = Path, CRLs, ManagerType)->
+    put(ssl_manager, manager_name(ManagerType)),
+    cast({insert_crls, Path, CRLs});
+insert_crls(Path, CRLs, ManagerType)->
+    put(ssl_manager, manager_name(ManagerType)),
+    call({insert_crls, Path, CRLs}).
+
+delete_crls(Path)->
+    delete_crls(Path, normal).
+delete_crls(?NO_DIST_POINT_PATH = Path, ManagerType)->
+    put(ssl_manager, manager_name(ManagerType)),
+    cast({delete_crls, Path});
+delete_crls(Path, ManagerType)->
+    put(ssl_manager, manager_name(ManagerType)),
+    call({delete_crls, Path}).
+
 %%====================================================================
 %% gen_server callbacks
 %%====================================================================
@@ -215,13 +236,17 @@ init([Name, Opts]) ->
     SessionLifeTime =  
 	proplists:get_value(session_lifetime, Opts, ?'24H_in_sec'),
     CertDb = ssl_pkix_db:create(),
-    SessionCache = CacheCb:init(proplists:get_value(session_cb_init_args, Opts, [])),
+    ClientSessionCache = CacheCb:init([{role, client} | 
+				       proplists:get_value(session_cb_init_args, Opts, [])]),
+    ServerSessionCache = CacheCb:init([{role, server} | 
+				       proplists:get_value(session_cb_init_args, Opts, [])]),
     Timer = erlang:send_after(SessionLifeTime * 1000 + 5000, 
 			      self(), validate_sessions),
     Interval = pem_check_interval(),
     erlang:send_after(Interval, self(), clear_pem_cache),
     {ok, #state{certificate_db = CertDb,
-		session_cache = SessionCache,
+		session_cache_client = ClientSessionCache,
+		session_cache_server = ServerSessionCache,
 		session_cache_cb = CacheCb,
 		session_lifetime = SessionLifeTime,
 		session_validation_timer = Timer,
@@ -240,32 +265,38 @@ init([Name, Opts]) ->
 %%
 %% Description: Handling call messages
 %%--------------------------------------------------------------------
-handle_call({{connection_init, <<>>, _Role}, _Pid}, _From,
-	    #state{certificate_db = [CertDb, FileRefDb, PemChace],
-		   session_cache = Cache} = State) ->
-    Result = {ok, make_ref(),CertDb, FileRefDb, PemChace, Cache},
-    {reply, Result, State};
-
-handle_call({{connection_init, Trustedcerts, _Role}, Pid}, _From,
-	    #state{certificate_db = [CertDb, FileRefDb, PemChace] = Db,
-		   session_cache = Cache} = State) ->
-    Result = 
-	try
-	    {ok, Ref} = ssl_pkix_db:add_trusted_certs(Pid, Trustedcerts, Db),
-	    {ok, Ref, CertDb, FileRefDb, PemChace, Cache}
-	catch
-	    _:Reason ->
-		{error, Reason}
-	end,
-    {reply, Result, State};
-
-handle_call({{new_session_id,Port}, _},
+handle_call({{connection_init, <<>>, Role, {CRLCb, UserCRLDb}}, _Pid}, _From,
+	    #state{certificate_db = [CertDb, FileRefDb, PemChace | _] = Db} = State) ->
+    Ref = make_ref(), 
+    Result = {ok, Ref, CertDb, FileRefDb, PemChace, session_cache(Role, State), {CRLCb, crl_db_info(Db, UserCRLDb)}},
+    {reply, Result, State#state{certificate_db = Db}};
+
+handle_call({{connection_init, Trustedcerts, Role, {CRLCb, UserCRLDb}}, Pid}, _From,
+	    #state{certificate_db = [CertDb, FileRefDb, PemChace | _] = Db} = State) ->
+    case add_trusted_certs(Pid, Trustedcerts, Db) of
+	{ok, Ref} ->
+	    {reply, {ok, Ref, CertDb, FileRefDb, PemChace, session_cache(Role, State), 
+		     {CRLCb, crl_db_info(Db, UserCRLDb)}}, State};
+	{error, _} = Error ->
+	    {reply, Error, State}
+    end;
+
+handle_call({{insert_crls, Path, CRLs}, _}, _From,   
+	    #state{certificate_db = Db} = State) ->
+    ssl_pkix_db:add_crls(Db, Path, CRLs),
+    {reply, ok, State};
+
+handle_call({{delete_crls, CRLsOrPath}, _}, _From,   
+	    #state{certificate_db = Db} = State) ->
+    ssl_pkix_db:remove_crls(Db, CRLsOrPath),
+    {reply, ok, State};
+
+handle_call({{new_session_id, Port}, _},
 	    _, #state{session_cache_cb = CacheCb,
-		      session_cache = Cache} = State) ->
+		      session_cache_server = Cache} = State) ->
     Id = new_id(Port, ?GEN_UNIQUE_ID_MAX_TRIES, Cache, CacheCb),
     {reply, Id, State};
 
-
 handle_call({{cache_pem,File}, _Pid}, _,
 	    #state{certificate_db = Db} = State) ->
     try ssl_pkix_db:cache_pem_file(File, Db) of
@@ -275,7 +306,7 @@ handle_call({{cache_pem,File}, _Pid}, _,
 	_:Reason ->
 	    {reply, {error, Reason}, State}
     end;
-handle_call({unconditionally_clear_pem_cache, _},_, #state{certificate_db = [_,_,PemChace]} = State) ->
+handle_call({unconditionally_clear_pem_cache, _},_, #state{certificate_db = [_,_,PemChace | _]} = State) ->
     ssl_pkix_db:clear(PemChace),
     {reply, ok,  State}.
 
@@ -288,16 +319,22 @@ handle_call({unconditionally_clear_pem_cache, _},_, #state{certificate_db = [_,_
 %% Description: Handling cast messages
 %%--------------------------------------------------------------------
 handle_cast({register_session, Host, Port, Session}, 
-	    #state{session_cache = Cache,
+	    #state{session_cache_client = Cache,
 		   session_cache_cb = CacheCb} = State) ->
     TimeStamp = calendar:datetime_to_gregorian_seconds({date(), time()}),
     NewSession = Session#session{time_stamp = TimeStamp},
-    CacheCb:update(Cache, {{Host, Port}, 
-		   NewSession#session.session_id}, NewSession),
+    
+    case CacheCb:select_session(Cache, {Host, Port}) of
+	no_session ->
+	    CacheCb:update(Cache, {{Host, Port}, 
+				   NewSession#session.session_id}, NewSession);
+	Sessions ->
+	    register_unique_session(Sessions, NewSession, CacheCb, Cache, {Host, Port})
+    end,
     {noreply, State};
 
 handle_cast({register_session, Port, Session},  
-	    #state{session_cache = Cache,
+	    #state{session_cache_server = Cache,
 		   session_cache_cb = CacheCb} = State) ->    
     TimeStamp = calendar:datetime_to_gregorian_seconds({date(), time()}),
     NewSession = Session#session{time_stamp = TimeStamp},
@@ -306,17 +343,28 @@ handle_cast({register_session, Port, Session},
 
 handle_cast({invalidate_session, Host, Port,
 	     #session{session_id = ID} = Session},
-	    #state{session_cache = Cache,
+	    #state{session_cache_client = Cache,
 		   session_cache_cb = CacheCb} = State) ->
     invalidate_session(Cache, CacheCb, {{Host, Port}, ID}, Session, State);
 
 handle_cast({invalidate_session, Port, #session{session_id = ID} = Session},
-	    #state{session_cache = Cache,
+	    #state{session_cache_server = Cache,
 		   session_cache_cb = CacheCb} = State) ->
     invalidate_session(Cache, CacheCb, {Port, ID}, Session, State);
 
+
+handle_cast({insert_crls, Path, CRLs},   
+	    #state{certificate_db = Db} = State) ->
+    ssl_pkix_db:add_crls(Db, Path, CRLs),
+    {noreply, State};
+
+handle_cast({delete_crls, CRLsOrPath},   
+	    #state{certificate_db = Db} = State) ->
+    ssl_pkix_db:remove_crls(Db, CRLsOrPath),
+    {noreply, State};
+
 handle_cast({invalidate_pem, File},
-	    #state{certificate_db = [_, _, PemCache]} = State) ->
+	    #state{certificate_db = [_, _, PemCache | _]} = State) ->
     ssl_pkix_db:remove(File, PemCache),
     {noreply, State}.
 
@@ -329,21 +377,23 @@ handle_cast({invalidate_pem, File},
 %% Description: Handling all non call/cast messages
 %%-------------------------------------------------------------------
 handle_info(validate_sessions, #state{session_cache_cb = CacheCb,
-				      session_cache = Cache,
+				      session_cache_client = ClientCache,
+				      session_cache_server = ServerCache,
 				      session_lifetime = LifeTime
 				     } = State) ->
     Timer = erlang:send_after(?SESSION_VALIDATION_INTERVAL, 
 			      self(), validate_sessions),
-    start_session_validator(Cache, CacheCb, LifeTime),
+    start_session_validator(ClientCache, CacheCb, LifeTime),
+    start_session_validator(ServerCache, CacheCb, LifeTime),
     {noreply, State#state{session_validation_timer = Timer}};
 
-handle_info({delayed_clean_session, Key}, #state{session_cache = Cache,
-                   session_cache_cb = CacheCb
-                   } = State) ->
+
+handle_info({delayed_clean_session, Key, Cache}, #state{session_cache_cb = CacheCb
+						       } = State) ->
     CacheCb:delete(Cache, Key),
     {noreply, State};
 
-handle_info(clear_pem_cache, #state{certificate_db = [_,_,PemChace],
+handle_info(clear_pem_cache, #state{certificate_db = [_,_,PemChace | _],
 				    clear_pem_cache = Interval,
 				    last_pem_check = CheckPoint} = State) ->
     NewCheckPoint = os:timestamp(),
@@ -351,9 +401,8 @@ handle_info(clear_pem_cache, #state{certificate_db = [_,_,PemChace],
     erlang:send_after(Interval, self(), clear_pem_cache),
     {noreply, State#state{last_pem_check = NewCheckPoint}};
 
-
 handle_info({clean_cert_db, Ref, File},
-	    #state{certificate_db = [CertDb,RefDb, PemCache]} = State) ->
+	    #state{certificate_db = [CertDb,RefDb, PemCache | _]} = State) ->
     
     case ssl_pkix_db:lookup(Ref, RefDb) of
 	undefined -> %% Alredy cleaned
@@ -380,12 +429,14 @@ handle_info(_Info, State) ->
 %% The return value is ignored.
 %%--------------------------------------------------------------------
 terminate(_Reason, #state{certificate_db = Db,
-			  session_cache = SessionCache,
+			  session_cache_client = ClientSessionCache,
+			  session_cache_server = ServerSessionCache,
 			  session_cache_cb = CacheCb,
 			  session_validation_timer = Timer}) ->
     erlang:cancel_timer(Timer),
     ssl_pkix_db:remove(Db),
-    CacheCb:terminate(SessionCache),
+    catch CacheCb:terminate(ClientSessionCache),
+    catch CacheCb:terminate(ServerSessionCache),
     ok.
 
 %%--------------------------------------------------------------------
@@ -458,7 +509,7 @@ invalidate_session(Cache, CacheCb, Key, Session, #state{last_delay_timer = LastT
 	    %% up the session data but new connections should not get to use this session.
 	    CacheCb:update(Cache, Key, Session#session{is_resumable = false}),
 	    TRef =
-		erlang:send_after(delay_time(), self(), {delayed_clean_session, Key}),
+		erlang:send_after(delay_time(), self(), {delayed_clean_session, Key, Cache}),
 	    {noreply, State#state{last_delay_timer = last_delay_timer(Key, TRef, LastTimer)}}
     end.
 
@@ -507,6 +558,37 @@ clean_cert_db(Ref, CertDb, RefDb, PemCache, File) ->
 	    ok
     end.
 
+%% Do not let dumb clients create a gigantic session table
+%% for itself creating big delays at connection time. 
+register_unique_session(Sessions, Session, CacheCb, Cache, PartialKey) ->
+    case exists_equivalent(Session , Sessions) of
+	true ->
+	    ok;
+	false ->
+	    CacheCb:update(Cache, {PartialKey, 
+				   Session#session.session_id}, Session)
+    end.
+
+exists_equivalent(_, []) ->
+    false;
+exists_equivalent(#session{
+		     peer_certificate = PeerCert,
+		     own_certificate = OwnCert,
+		     compression_method = Compress,
+		     cipher_suite = CipherSuite,
+		     srp_username = SRP,
+		     ecc = ECC} , 
+		  [#session{
+		      peer_certificate = PeerCert,
+		      own_certificate = OwnCert,
+		      compression_method = Compress,
+		      cipher_suite = CipherSuite,
+		      srp_username = SRP,
+		      ecc = ECC} | _]) ->
+    true;
+exists_equivalent(Session, [ _ | Rest]) ->
+    exists_equivalent(Session, Rest).
+
 start_pem_cache_validator(PemCache, CheckPoint) ->
     spawn_link(?MODULE, init_pem_cache_validator, 
 	       [[get(ssl_manager), PemCache, CheckPoint]]).
@@ -542,3 +624,21 @@ is_before_checkpoint(Time, CheckPoint) ->
     calendar:datetime_to_gregorian_seconds(calendar:now_to_datetime(CheckPoint)) -
     calendar:datetime_to_gregorian_seconds(Time) > 0.
 
+add_trusted_certs(Pid, Trustedcerts, Db) ->
+    try
+	ssl_pkix_db:add_trusted_certs(Pid, Trustedcerts, Db) 	    
+    catch
+	_:Reason ->
+	    {error, Reason}
+    end.
+
+session_cache(client, #state{session_cache_client = Cache}) ->
+    Cache;
+session_cache(server, #state{session_cache_server = Cache}) ->
+    Cache.
+
+crl_db_info([_,_,_,Local], {internal, Info}) ->
+    {Local, Info};
+crl_db_info(_, UserCRLDb) ->
+    UserCRLDb.
+
diff --git a/lib/ssl/src/ssl_pkix_db.erl b/lib/ssl/src/ssl_pkix_db.erl
index 8531445ba4..d7b7e3eae3 100644
--- a/lib/ssl/src/ssl_pkix_db.erl
+++ b/lib/ssl/src/ssl_pkix_db.erl
@@ -27,9 +27,9 @@
 -include_lib("public_key/include/public_key.hrl").
 -include_lib("kernel/include/file.hrl").
 
--export([create/0, remove/1, add_trusted_certs/3, 
+-export([create/0, add_crls/3, remove_crls/2, remove/1, add_trusted_certs/3, 
 	 remove_trusted_certs/2, insert/3, remove/2, clear/1, db_size/1,
-	 ref_count/3, lookup_trusted_cert/4, foldl/3,
+	 ref_count/3, lookup_trusted_cert/4, foldl/3, select_cert_by_issuer/2,
 	 lookup_cached_pem/2, cache_pem_file/2, cache_pem_file/3,
 	 lookup/2]).
 
@@ -51,16 +51,24 @@ create() ->
      ets:new(ssl_otp_cacertificate_db, [set, public]),
      %% Let connection processes call ref_count/3 directly
      ets:new(ssl_otp_ca_file_ref, [set, public]),
-     ets:new(ssl_otp_pem_cache, [set, protected])
+     ets:new(ssl_otp_pem_cache, [set, protected]),
+     %% Default cache
+     {ets:new(ssl_otp_crl_cache, [set, protected]),
+      ets:new(ssl_otp_crl_issuer_mapping, [bag, protected])}
     ].
 
 %%--------------------------------------------------------------------
--spec remove([db_handle()]) -> ok.
+-spec remove([db_handle()]) -> ok. 
 %%
 %% Description: Removes database db  
 %%--------------------------------------------------------------------
 remove(Dbs) ->
-    lists:foreach(fun(Db) ->
+    lists:foreach(fun({Db0, Db1})  ->
+			  true = ets:delete(Db0),
+			  true = ets:delete(Db1);
+		     (undefined) -> 
+			  ok;
+		     (Db) ->
 			  true = ets:delete(Db)
 		  end, Dbs).
 
@@ -81,7 +89,7 @@ lookup_trusted_cert(DbHandle, Ref, SerialNumber, Issuer) ->
 	    {ok, Certs}
     end.
 
-lookup_cached_pem([_, _, PemChache], File) ->
+lookup_cached_pem([_, _, PemChache | _], File) ->
     lookup_cached_pem(PemChache, File);
 lookup_cached_pem(PemChache, File) ->
     lookup(File, PemChache).
@@ -94,12 +102,12 @@ lookup_cached_pem(PemChache, File) ->
 %% runtime database. Returns Ref that should be handed to lookup_trusted_cert
 %% together with the cert serialnumber and issuer.
 %%--------------------------------------------------------------------
-add_trusted_certs(_Pid, {der, DerList}, [CerDb, _,_]) ->
+add_trusted_certs(_Pid, {der, DerList}, [CertDb, _,_ | _]) ->
     NewRef = make_ref(),
-    add_certs_from_der(DerList, NewRef, CerDb),
+    add_certs_from_der(DerList, NewRef, CertDb),
     {ok, NewRef};
 
-add_trusted_certs(_Pid, File, [CertsDb, RefDb, PemChache] = Db) ->
+add_trusted_certs(_Pid, File, [CertsDb, RefDb, PemChache | _] = Db) ->
     case lookup_cached_pem(Db, File) of
 	[{_Content, Ref}] ->
 	    ref_count(Ref, RefDb, 1),
@@ -118,14 +126,15 @@ add_trusted_certs(_Pid, File, [CertsDb, RefDb, PemChache] = Db) ->
 %% Description: Cache file as binary in DB
 %%--------------------------------------------------------------------
 -spec cache_pem_file(binary(), [db_handle()]) -> {ok, term()}.
-cache_pem_file(File, [_CertsDb, _RefDb, PemChache]) ->
+cache_pem_file(File, [_CertsDb, _RefDb, PemChache | _]) ->
     {ok, PemBin} = file:read_file(File),
     Content = public_key:pem_decode(PemBin),
     insert(File, Content, PemChache),
     {ok, Content}.
 
+
 -spec cache_pem_file(reference(), binary(), [db_handle()]) -> {ok, term()}.
-cache_pem_file(Ref, File, [_CertsDb, _RefDb, PemChache]) ->
+cache_pem_file(Ref, File, [_CertsDb, _RefDb, PemChache| _]) ->
     {ok, PemBin} = file:read_file(File),
     Content = public_key:pem_decode(PemBin),
     insert(File, {Content, Ref}, PemChache),
@@ -149,6 +158,15 @@ remove(Key, Db) ->
     ok.
 
 %%--------------------------------------------------------------------
+-spec remove(term(), term(), db_handle()) -> ok.
+%%
+%% Description: Removes an element in a <Db>.
+%%--------------------------------------------------------------------
+remove(Key, Data, Db) ->
+    ets:delete_object(Db, {Key, Data}),
+    ok.
+
+%%--------------------------------------------------------------------
 -spec lookup(term(), db_handle()) -> [term()] | undefined.
 %%
 %% Description: Looks up an element in a <Db>.
@@ -175,6 +193,10 @@ lookup(Key, Db) ->
 foldl(Fun, Acc0, Cache) ->
     ets:foldl(Fun, Acc0, Cache).
 
+
+select_cert_by_issuer(Cache, Issuer) ->    
+    ets:select(Cache, [{{{'_','_', Issuer},{'_', '$1'}},[],['$$']}]).
+
 %%--------------------------------------------------------------------
 -spec ref_count(term(), db_handle(), integer()) -> integer().
 %%
@@ -244,9 +266,39 @@ add_certs(Cert, Ref, CertsDb) ->
 	    error_logger:info_report(Report)
     end.
 
-new_trusted_cert_entry(File, [CertsDb, RefDb, _] = Db) ->
+new_trusted_cert_entry(File, [CertsDb, RefDb, _ | _] = Db) ->
     Ref = make_ref(),
     update_counter(Ref, 1, RefDb),
     {ok, Content} = cache_pem_file(Ref, File, Db),
     add_certs_from_pem(Content, Ref, CertsDb),
     {ok, Ref}.
+
+add_crls([_,_,_, {_, Mapping} | _], ?NO_DIST_POINT, CRLs) ->
+    [add_crls(CRL, Mapping) || CRL <- CRLs];
+add_crls([_,_,_, {Cache, Mapping} | _], Path, CRLs) ->
+    insert(Path, CRLs, Cache), 
+    [add_crls(CRL, Mapping) || CRL <- CRLs].
+
+add_crls(CRL, Mapping) ->
+    insert(crl_issuer(CRL), CRL, Mapping).
+
+remove_crls([_,_,_, {_, Mapping} | _], {?NO_DIST_POINT, CRLs}) ->
+    [rm_crls(CRL, Mapping) || CRL <- CRLs];
+	
+remove_crls([_,_,_, {Cache, Mapping} | _], Path) ->
+    case lookup(Path, Cache) of
+	undefined ->
+	    ok;
+	CRLs ->
+	    remove(Path, Cache),
+	    [rm_crls(CRL, Mapping) || CRL <- CRLs]
+    end.
+
+rm_crls(CRL, Mapping) ->
+   remove(crl_issuer(CRL), CRL, Mapping). 
+
+crl_issuer(DerCRL) ->
+    CRL = public_key:der_decode('CertificateList', DerCRL),
+    TBSCRL = CRL#'CertificateList'.tbsCertList,
+    TBSCRL#'TBSCertList'.issuer.
+
diff --git a/lib/ssl/src/ssl_record.erl b/lib/ssl/src/ssl_record.erl
index 025a46bf65..a02375a947 100644
--- a/lib/ssl/src/ssl_record.erl
+++ b/lib/ssl/src/ssl_record.erl
@@ -48,7 +48,8 @@
 -export([compress/3, uncompress/3, compressions/0]).
 
 %% Payload encryption/decryption
--export([cipher/4, decipher/4, is_correct_mac/2]).
+-export([cipher/4, decipher/4, is_correct_mac/2,
+	 cipher_aead/4, decipher_aead/4]).
 
 -export_type([ssl_version/0, ssl_atom_version/0]).
 
@@ -376,6 +377,23 @@ cipher(Version, Fragment,
     {CipherFragment, CipherS1} =
 	ssl_cipher:cipher(BulkCipherAlgo, CipherS0, MacHash, Fragment, Version),
     {CipherFragment,  WriteState0#connection_state{cipher_state = CipherS1}}.
+%%--------------------------------------------------------------------
+-spec cipher_aead(ssl_version(), iodata(), #connection_state{}, MacHash::binary()) ->
+			 {CipherFragment::binary(), #connection_state{}}.
+%%
+%% Description: Payload encryption
+%%--------------------------------------------------------------------
+cipher_aead(Version, Fragment,
+       #connection_state{cipher_state = CipherS0,
+			 sequence_number = SeqNo,
+			 security_parameters=
+			     #security_parameters{bulk_cipher_algorithm =
+						      BulkCipherAlgo}
+			} = WriteState0, AAD) ->
+
+    {CipherFragment, CipherS1} =
+	ssl_cipher:cipher_aead(BulkCipherAlgo, CipherS0, SeqNo, AAD, Fragment, Version),
+    {CipherFragment,  WriteState0#connection_state{cipher_state = CipherS1}}.
 
 %%--------------------------------------------------------------------
 -spec decipher(ssl_version(), binary(), #connection_state{}, boolean()) -> {binary(), binary(), #connection_state{}} | #alert{}.
@@ -397,6 +415,25 @@ decipher(Version, CipherFragment,
 	    Alert
     end.
 %%--------------------------------------------------------------------
+-spec decipher_aead(ssl_version(), binary(), #connection_state{}, binary()) -> {binary(), binary(), #connection_state{}} | #alert{}.
+%%
+%% Description: Payload decryption
+%%--------------------------------------------------------------------
+decipher_aead(Version, CipherFragment,
+	 #connection_state{sequence_number = SeqNo,
+			   security_parameters =
+			       #security_parameters{bulk_cipher_algorithm =
+							BulkCipherAlgo},
+			   cipher_state = CipherS0
+			  } = ReadState, AAD) ->
+    case ssl_cipher:decipher_aead(BulkCipherAlgo, CipherS0, SeqNo, AAD, CipherFragment, Version) of
+	{PlainFragment, CipherS1} ->
+	    CS1 = ReadState#connection_state{cipher_state = CipherS1},
+	    {PlainFragment, CS1};
+	#alert{} = Alert ->
+	    Alert
+    end.
+%%--------------------------------------------------------------------
 %%% Internal functions
 %%--------------------------------------------------------------------
 empty_connection_state(ConnectionEnd) ->
diff --git a/lib/ssl/src/ssl_record.hrl b/lib/ssl/src/ssl_record.hrl
index 6aab35d6da..53b5f2399b 100644
--- a/lib/ssl/src/ssl_record.hrl
+++ b/lib/ssl/src/ssl_record.hrl
@@ -90,11 +90,14 @@
 -define('3DES', 4).
 -define(DES40, 5).
 -define(IDEA, 6).
--define(AES, 7). 
+-define(AES_CBC, 7).
+-define(AES_GCM, 8).
+-define(CHACHA20_POLY1305, 9).
 
 %% CipherType
 -define(STREAM, 0).
 -define(BLOCK, 1).
+-define(AEAD, 2).
 
 %% IsExportable
 %-define(TRUE, 0).  %% Already defined by ssl_internal.hrl
diff --git a/lib/ssl/src/ssl_session_cache.erl b/lib/ssl/src/ssl_session_cache.erl
index 5c6ee3c54c..b011732f2c 100644
--- a/lib/ssl/src/ssl_session_cache.erl
+++ b/lib/ssl/src/ssl_session_cache.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2008-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2008-2014. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -31,8 +31,8 @@
 %%--------------------------------------------------------------------
 %% Description: Return table reference. Called by ssl_manager process. 
 %%--------------------------------------------------------------------
-init(_) ->
-    ets:new(cache_name(), [ordered_set, protected]).
+init(Options) ->
+    ets:new(cache_name(proplists:get_value(role, Options)), [ordered_set, protected]).
 
 %%--------------------------------------------------------------------
 %% Description: Handles cache table at termination of ssl manager. 
@@ -87,5 +87,5 @@ select_session(Cache, PartialKey) ->
 %%--------------------------------------------------------------------
 %%% Internal functions
 %%--------------------------------------------------------------------
-cache_name() ->
-    ssl_otp_session_cache.
+cache_name(Name) ->
+    list_to_atom(atom_to_list(Name) ++ "_ssl_otp_session_cache").
diff --git a/lib/ssl/src/ssl_tls_dist_proxy.erl b/lib/ssl/src/ssl_tls_dist_proxy.erl
index a22af6b960..d23b42ace5 100644
--- a/lib/ssl/src/ssl_tls_dist_proxy.erl
+++ b/lib/ssl/src/ssl_tls_dist_proxy.erl
@@ -227,7 +227,10 @@ loop_conn_setup(World, Erts) ->
 	{tcp_closed, Erts} ->
 	    ssl:close(World);
 	{ssl_closed,  World} ->
-	    gen_tcp:close(Erts)
+	    gen_tcp:close(Erts);
+	{ssl_error, World, _} ->
+
+	    ssl:close(World)
     end.
 
 loop_conn(World, Erts) ->
@@ -241,7 +244,9 @@ loop_conn(World, Erts) ->
 	{tcp_closed, Erts} ->
 	    ssl:close(World);
 	{ssl_closed,  World} ->
-	    gen_tcp:close(Erts)
+	    gen_tcp:close(Erts);
+	{ssl_error, World, _} ->
+	    ssl:close(World)
     end.
 
 get_ssl_options(Type) ->
diff --git a/lib/ssl/src/ssl_v3.erl b/lib/ssl/src/ssl_v3.erl
index 68f7f5dee2..169b39be32 100644
--- a/lib/ssl/src/ssl_v3.erl
+++ b/lib/ssl/src/ssl_v3.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2007-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2007-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -143,9 +143,6 @@ suites() ->
       ?TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
       ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA,
       ?TLS_RSA_WITH_AES_128_CBC_SHA,
-      %%?TLS_RSA_WITH_IDEA_CBC_SHA,
-      ?TLS_RSA_WITH_RC4_128_SHA,
-      ?TLS_RSA_WITH_RC4_128_MD5,
       ?TLS_RSA_WITH_DES_CBC_SHA
      ].
 
diff --git a/lib/ssl/src/tls_connection.erl b/lib/ssl/src/tls_connection.erl
index 8abe73c585..ed7ccb3d70 100644
--- a/lib/ssl/src/tls_connection.erl
+++ b/lib/ssl/src/tls_connection.erl
@@ -188,19 +188,27 @@ hello(Hello = #client_hello{client_version = ClientVersion,
 		     renegotiation = {Renegotiation, _},
 		     session_cache = Cache,
 		     session_cache_cb = CacheCb,
+		     negotiated_protocol = CurrentProtocol,
 		     ssl_options = SslOpts}) ->
     case tls_handshake:hello(Hello, SslOpts, {Port, Session0, Cache, CacheCb,
 					      ConnectionStates0, Cert}, Renegotiation) of
+        #alert{} = Alert ->
+            handle_own_alert(Alert, ClientVersion, hello, State);
         {Version, {Type, Session},
-	 ConnectionStates, ServerHelloExt} ->
+	 ConnectionStates, Protocol0, ServerHelloExt} ->
+
+	    Protocol = case Protocol0 of
+		undefined -> CurrentProtocol;
+		_ -> Protocol0
+	    end,
+
             HashSign = ssl_handshake:select_hashsign(HashSigns, Cert, Version),
             ssl_connection:hello({common_client_hello, Type, ServerHelloExt, HashSign},
 				 State#state{connection_states  = ConnectionStates,
 					     negotiated_version = Version,
 					     session = Session,
-					     client_ecc = {EllipticCurves, EcPointFormats}}, ?MODULE);
-        #alert{} = Alert ->
-            handle_own_alert(Alert, ClientVersion, hello, State)
+					     client_ecc = {EllipticCurves, EcPointFormats},
+					     negotiated_protocol = Protocol}, ?MODULE)
     end;
 hello(Hello,
       #state{connection_states = ConnectionStates0,
@@ -211,9 +219,9 @@ hello(Hello,
     case tls_handshake:hello(Hello, SslOptions, ConnectionStates0, Renegotiation) of
 	#alert{} = Alert ->
 	    handle_own_alert(Alert, ReqVersion, hello, State);
-	{Version, NewId, ConnectionStates, NextProtocol} ->
+	{Version, NewId, ConnectionStates, ProtoExt, Protocol} ->
 	    ssl_connection:handle_session(Hello, 
-					  Version, NewId, ConnectionStates, NextProtocol, State)
+					  Version, NewId, ConnectionStates, ProtoExt, Protocol, State)
     end;
 
 hello(Msg, State) ->
@@ -391,6 +399,23 @@ initial_state(Role, Host, Port, Socket, {SSLOptions, SocketOptions, Tracker}, Us
 	   tracker = Tracker
 	  }.
 
+
+update_ssl_options_from_sni(OrigSSLOptions, SNIHostname) ->
+    SSLOption = 
+	case OrigSSLOptions#ssl_options.sni_fun of
+	    undefined ->
+		proplists:get_value(SNIHostname, 
+				    OrigSSLOptions#ssl_options.sni_hosts);
+	    SNIFun ->
+		SNIFun(SNIHostname)
+	end,
+    case SSLOption of
+        undefined ->
+            undefined;
+        _ ->
+            ssl:handle_options(SSLOption, OrigSSLOptions)
+    end.
+
 next_state(Current,_, #alert{} = Alert, #state{negotiated_version = Version} = State) ->
     handle_own_alert(Alert, Version, Current, State);
 
@@ -419,15 +444,17 @@ next_state(Current, Next, #ssl_tls{type = ?HANDSHAKE, fragment = Data},
    		%% This message should not be included in handshake
    		%% message hashes. Already in negotiation so it will be ignored!
    		?MODULE:SName(Packet, State);
-	   ({#client_hello{} = Packet, Raw}, {next_state, connection = SName, State}) ->
+	   ({#client_hello{} = Packet, Raw}, {next_state, connection = SName, HState0}) ->
+		HState = handle_sni_extension(Packet, HState0),
 		Version = Packet#client_hello.client_version,
 		Hs0 = ssl_handshake:init_handshake_history(),
 		Hs1 = ssl_handshake:update_handshake_history(Hs0, Raw),
-		?MODULE:SName(Packet, State#state{tls_handshake_history=Hs1,
-   						  renegotiation = {true, peer}});
-	   ({Packet, Raw}, {next_state, SName, State = #state{tls_handshake_history=Hs0}}) ->
+		?MODULE:SName(Packet, HState#state{tls_handshake_history=Hs1,
+						   renegotiation = {true, peer}});
+	   ({Packet, Raw}, {next_state, SName, HState0 = #state{tls_handshake_history=Hs0}}) ->
+		HState = handle_sni_extension(Packet, HState0),
 		Hs1 = ssl_handshake:update_handshake_history(Hs0, Raw),
-		?MODULE:SName(Packet, State#state{tls_handshake_history=Hs1});
+		?MODULE:SName(Packet, HState#state{tls_handshake_history=Hs1});
    	   (_, StopState) -> StopState
    	end,
     try
@@ -974,3 +1001,32 @@ convert_options_partial_chain(Options, up) ->
     list_to_tuple(Head ++ [{partial_chain, fun(_) -> unknown_ca end}] ++ Tail);
 convert_options_partial_chain(Options, down) ->
     list_to_tuple(proplists:delete(partial_chain, tuple_to_list(Options))).
+
+handle_sni_extension(#client_hello{extensions = HelloExtensions}, State0) ->
+    case HelloExtensions#hello_extensions.sni of
+	undefined ->
+	    State0;
+	#sni{hostname = Hostname} ->
+	    NewOptions = update_ssl_options_from_sni(State0#state.ssl_options, Hostname),
+	    case NewOptions of
+		undefined ->
+		    State0;
+		_ ->
+		    {ok, Ref, CertDbHandle, FileRefHandle, CacheHandle, CRLDbHandle, OwnCert, Key, DHParams} = 
+			ssl_config:init(NewOptions, State0#state.role),
+		    State0#state{
+		      session = State0#state.session#session{own_certificate = OwnCert},
+		      file_ref_db = FileRefHandle,
+		      cert_db_ref = Ref,
+		      cert_db = CertDbHandle,
+		      crl_db = CRLDbHandle,
+		      session_cache = CacheHandle,
+		      private_key = Key,
+		      diffie_hellman_params = DHParams,
+		      ssl_options = NewOptions,
+		      sni_hostname = Hostname
+		     }
+	    end
+    end;
+handle_sni_extension(_, State0) ->
+    State0.
diff --git a/lib/ssl/src/tls_handshake.erl b/lib/ssl/src/tls_handshake.erl
index b0b6d5a8e3..d936310991 100644
--- a/lib/ssl/src/tls_handshake.erl
+++ b/lib/ssl/src/tls_handshake.erl
@@ -78,12 +78,14 @@ client_hello(Host, Port, ConnectionStates,
 %%--------------------------------------------------------------------
 -spec hello(#server_hello{} | #client_hello{}, #ssl_options{},
 	    #connection_states{} | {inet:port_number(), #session{}, db_handle(),
-				    atom(), #connection_states{}, binary() | undefined},
+				    atom(), #connection_states{}, 
+				    binary() | undefined},
 	    boolean()) ->
-		   {tls_record:tls_version(), session_id(), #connection_states{}, binary() | undefined}|
-		   {tls_record:tls_version(), {resumed | new, #session{}}, #connection_states{},
-		    [binary()] | undefined,
-		    [ssl_handshake:oid()] | undefined, [ssl_handshake:oid()] | undefined} |
+		   {tls_record:tls_version(), session_id(), 
+		    #connection_states{}, alpn | npn, binary() | undefined}|
+		   {tls_record:tls_version(), {resumed | new, #session{}}, 
+		    #connection_states{}, binary() | undefined, 
+		    #hello_extensions{}} |
 		   #alert{}.
 %%
 %% Description: Handles a recieved hello message
@@ -246,8 +248,10 @@ handle_client_hello_extensions(Version, Type, Random, CipherSuites,
     try ssl_handshake:handle_client_hello_extensions(tls_record, Random, CipherSuites,
 						     HelloExt, Version, SslOpts,
 						     Session0, ConnectionStates0, Renegotiation) of
-	{Session, ConnectionStates, ServerHelloExt} ->
-	    {Version, {Type, Session}, ConnectionStates, ServerHelloExt}
+	#alert{} = Alert ->
+	    Alert;
+	{Session, ConnectionStates, Protocol, ServerHelloExt} ->
+	    {Version, {Type, Session}, ConnectionStates, Protocol, ServerHelloExt}
     catch throw:Alert ->
 	    Alert
     end.
@@ -260,7 +264,7 @@ handle_server_hello_extensions(Version, SessionId, Random, CipherSuite,
 						      SslOpt, ConnectionStates0, Renegotiation) of
 	#alert{} = Alert ->
 	    Alert;
-	{ConnectionStates, Protocol} ->
-	    {Version, SessionId, ConnectionStates, Protocol}
+	{ConnectionStates, ProtoExt, Protocol} ->
+	    {Version, SessionId, ConnectionStates, ProtoExt, Protocol}
     end.
 
diff --git a/lib/ssl/src/tls_record.erl b/lib/ssl/src/tls_record.erl
index 168b2c8fd3..14a49ac7da 100644
--- a/lib/ssl/src/tls_record.erl
+++ b/lib/ssl/src/tls_record.erl
@@ -132,6 +132,23 @@ encode_plain_text(Type, Version, Data,
 					    sequence_number = Seq,
 					    compression_state=CompS0,
 					    security_parameters=
+						#security_parameters{
+						   cipher_type = ?AEAD,
+						   compression_algorithm=CompAlg}
+					   }= WriteState0} = ConnectionStates) ->
+    {Comp, CompS1} = ssl_record:compress(CompAlg, Data, CompS0),
+    WriteState1 = WriteState0#connection_state{compression_state = CompS1},
+    AAD = calc_aad(Type, Version, WriteState1),
+    {CipherFragment, WriteState} = ssl_record:cipher_aead(Version, Comp, WriteState1, AAD),
+    CipherText = encode_tls_cipher_text(Type, Version, CipherFragment),
+    {CipherText, ConnectionStates#connection_states{current_write = WriteState#connection_state{sequence_number = Seq +1}}};
+
+encode_plain_text(Type, Version, Data,
+		  #connection_states{current_write =
+					 #connection_state{
+					    sequence_number = Seq,
+					    compression_state=CompS0,
+					    security_parameters=
 						#security_parameters{compression_algorithm=CompAlg}
 					   }= WriteState0} = ConnectionStates) ->
     {Comp, CompS1} = ssl_record:compress(CompAlg, Data, CompS0),
@@ -154,14 +171,39 @@ decode_cipher_text(#ssl_tls{type = Type, version = Version,
 					     compression_state = CompressionS0,
 					     sequence_number = Seq,
 					     security_parameters=
-						 #security_parameters{compression_algorithm = CompressAlg}
+						 #security_parameters{
+						    cipher_type = ?AEAD,
+						    compression_algorithm=CompAlg}
+					    } = ReadState0} = ConnnectionStates0, _) ->
+    AAD = calc_aad(Type, Version, ReadState0),
+    case ssl_record:decipher_aead(Version, CipherFragment, ReadState0, AAD) of
+	{PlainFragment, ReadState1} ->
+	    {Plain, CompressionS1} = ssl_record:uncompress(CompAlg,
+							   PlainFragment, CompressionS0),
+	    ConnnectionStates = ConnnectionStates0#connection_states{
+				  current_read = ReadState1#connection_state{
+						   sequence_number = Seq + 1,
+						   compression_state = CompressionS1}},
+	    {CipherText#ssl_tls{fragment = Plain}, ConnnectionStates};
+	#alert{} = Alert ->
+	    Alert
+    end;
+
+decode_cipher_text(#ssl_tls{type = Type, version = Version,
+			    fragment = CipherFragment} = CipherText,
+		   #connection_states{current_read =
+					  #connection_state{
+					     compression_state = CompressionS0,
+					     sequence_number = Seq,
+					     security_parameters=
+						 #security_parameters{compression_algorithm=CompAlg}
 					    } = ReadState0} = ConnnectionStates0, PaddingCheck) ->
     case ssl_record:decipher(Version, CipherFragment, ReadState0, PaddingCheck) of
 	{PlainFragment, Mac, ReadState1} ->
 	    MacHash = calc_mac_hash(Type, Version, PlainFragment, ReadState1),
 	    case ssl_record:is_correct_mac(Mac, MacHash) of
 		true ->
-		    {Plain, CompressionS1} = ssl_record:uncompress(CompressAlg,
+		    {Plain, CompressionS1} = ssl_record:uncompress(CompAlg,
 								   PlainFragment, CompressionS0),
 		    ConnnectionStates = ConnnectionStates0#connection_states{
 					  current_read = ReadState1#connection_state{
@@ -276,8 +318,17 @@ supported_protocol_versions([]) ->
     Vsns;
 
 supported_protocol_versions([_|_] = Vsns) ->
-    Vsns.
-
+    case sufficient_tlsv1_2_crypto_support() of
+	true -> 
+	    Vsns;
+	false ->
+	    case Vsns -- ['tlsv1.2'] of
+		[] ->
+		    ?MIN_SUPPORTED_VERSIONS;
+		NewVsns ->
+		    NewVsns
+	    end
+    end.
 %%--------------------------------------------------------------------
 %%     
 %% Description: ssl version 2 is not acceptable security risks are too big.
@@ -331,3 +382,7 @@ calc_mac_hash(Type, Version,
     mac_hash(Version, SecPars#security_parameters.mac_algorithm,
 	     MacSecret, SeqNo, Type,
 	     Length, PlainFragment).
+
+calc_aad(Type, {MajVer, MinVer},
+	 #connection_state{sequence_number = SeqNo}) ->
+    <<SeqNo:64/integer, ?BYTE(Type), ?BYTE(MajVer), ?BYTE(MinVer)>>.
diff --git a/lib/ssl/src/tls_v1.erl b/lib/ssl/src/tls_v1.erl
index 7a5f9c1b38..559fc1d6a8 100644
--- a/lib/ssl/src/tls_v1.erl
+++ b/lib/ssl/src/tls_v1.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2007-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2007-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -208,38 +208,55 @@ suites(Minor) when Minor == 1; Minor == 2 ->
       ?TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA,
       ?TLS_ECDH_RSA_WITH_AES_128_CBC_SHA,
       ?TLS_RSA_WITH_AES_128_CBC_SHA,
-
-      ?TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
-      ?TLS_ECDHE_RSA_WITH_RC4_128_SHA,
-      ?TLS_RSA_WITH_RC4_128_SHA,
-      ?TLS_RSA_WITH_RC4_128_MD5,
       ?TLS_DHE_RSA_WITH_DES_CBC_SHA,
-      ?TLS_ECDH_ECDSA_WITH_RC4_128_SHA,
-      ?TLS_ECDH_RSA_WITH_RC4_128_SHA,
-
       ?TLS_RSA_WITH_DES_CBC_SHA
     ];
 suites(3) ->
     [
+     ?TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
+     ?TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
+
+     ?TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
+     ?TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
      ?TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384,
      ?TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384,
+     ?TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384,
+     ?TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384,
      ?TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384,
      ?TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384,
 
+     ?TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
+     ?TLS_DHE_RSA_WITH_AES_256_GCM_SHA384,
+     ?TLS_DHE_DSS_WITH_AES_256_GCM_SHA384,
      ?TLS_DHE_RSA_WITH_AES_256_CBC_SHA256,
      ?TLS_DHE_DSS_WITH_AES_256_CBC_SHA256,
+     ?TLS_RSA_WITH_AES_256_GCM_SHA384,
      ?TLS_RSA_WITH_AES_256_CBC_SHA256,
 
+     ?TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
+     ?TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
      ?TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
      ?TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
+     ?TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256,
+     ?TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256,
      ?TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256,
      ?TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256,
 
+     ?TLS_DHE_RSA_WITH_AES_128_GCM_SHA256,
+     ?TLS_DHE_DSS_WITH_AES_128_GCM_SHA256,
      ?TLS_DHE_RSA_WITH_AES_128_CBC_SHA256,
      ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA256,
+     ?TLS_RSA_WITH_AES_128_GCM_SHA256,
      ?TLS_RSA_WITH_AES_128_CBC_SHA256
+
+     %% not supported
+     %% ?TLS_DH_RSA_WITH_AES_256_GCM_SHA384,
+     %% ?TLS_DH_DSS_WITH_AES_256_GCM_SHA384,
+     %% ?TLS_DH_RSA_WITH_AES_128_GCM_SHA256,
+     %% ?TLS_DH_DSS_WITH_AES_128_GCM_SHA256
     ] ++ suites(2).
 
+
 %%--------------------------------------------------------------------
 %%% Internal functions
 %%--------------------------------------------------------------------
diff --git a/lib/ssl/test/Makefile b/lib/ssl/test/Makefile
index 0d241707d9..886cc7726b 100644
--- a/lib/ssl/test/Makefile
+++ b/lib/ssl/test/Makefile
@@ -36,7 +36,9 @@ VSN=$(GS_VSN)
 
 MODULES = \
 	ssl_test_lib \
+	ssl_alpn_handshake_SUITE \
 	ssl_basic_SUITE \
+	ssl_bench_SUITE \
 	ssl_cipher_SUITE \
 	ssl_certificate_verify_SUITE\
 	ssl_crl_SUITE\
@@ -50,6 +52,8 @@ MODULES = \
 	ssl_session_cache_SUITE	\
 	ssl_to_openssl_SUITE \
 	ssl_ECC_SUITE \
+	ssl_upgrade_SUITE\
+	ssl_sni_SUITE \
 	make_certs\
 	erl_make_certs
 
@@ -131,7 +135,7 @@ release_spec: opt
 release_tests_spec: opt
 	$(INSTALL_DIR) "$(RELSYSDIR)"
 	$(INSTALL_DATA)  $(ERL_FILES) $(HRL_FILES) $(HRL_FILES_NEEDED_IN_TEST) $(COVER_FILE) "$(RELSYSDIR)"
-	$(INSTALL_DATA) ssl.spec ssl.cover "$(RELSYSDIR)"
+	$(INSTALL_DATA) ssl.spec ssl_bench.spec ssl.cover "$(RELSYSDIR)"
 	chmod -R u+w "$(RELSYSDIR)"
 	@tar cf - *_SUITE_data | (cd "$(RELSYSDIR)"; tar xf -)
 
diff --git a/lib/ssl/test/erl_make_certs.erl b/lib/ssl/test/erl_make_certs.erl
index daf4466f11..12ad1e5402 100644
--- a/lib/ssl/test/erl_make_certs.erl
+++ b/lib/ssl/test/erl_make_certs.erl
@@ -114,7 +114,7 @@ verify_signature(DerEncodedCert, DerKey, _KeyParams) ->
 	#'DSAPrivateKey'{p=P, q=Q, g=G, y=Y} ->
 	    public_key:pkix_verify(DerEncodedCert, {Y, #'Dss-Parms'{p=P, q=Q, g=G}});
 	#'ECPrivateKey'{version = _Version, privateKey = _PrivKey,
-			parameters = Params, publicKey = {0, PubKey}} ->
+			parameters = Params, publicKey = PubKey} ->
 	    public_key:pkix_verify(DerEncodedCert, {#'ECPoint'{point = PubKey}, Params})
     end.
 
@@ -204,7 +204,7 @@ issuer_der(Issuer) ->
     Subject.
 
 subject(undefined, IsRootCA) ->
-    User = if IsRootCA -> "RootCA"; true -> user() end,
+    User = if IsRootCA -> "RootCA"; true -> os:getenv("USER", "test_user") end,
     Opts = [{email, User ++ "@erlang.org"},
 	    {name, User},
 	    {city, "Stockholm"},
@@ -215,14 +215,6 @@ subject(undefined, IsRootCA) ->
 subject(Opts, _) ->
     subject(Opts).
 
-user() ->
-    case os:getenv("USER") of
-	false ->
-	    "test_user";
-	User ->
-	    User
-    end.
-
 subject(SubjectOpts) when is_list(SubjectOpts) ->
     Encode = fun(Opt) ->
 		     {Type,Value} = subject_enc(Opt),
@@ -300,7 +292,7 @@ publickey(#'DSAPrivateKey'{p=P, q=Q, g=G, y=Y}) ->
 publickey(#'ECPrivateKey'{version = _Version,
 			  privateKey = _PrivKey,
 			  parameters = Params,
-			  publicKey = {0, PubKey}}) ->
+			  publicKey = PubKey}) ->
     Algo = #'PublicKeyAlgorithm'{algorithm= ?'id-ecPublicKey', parameters=Params},
     #'OTPSubjectPublicKeyInfo'{algorithm = Algo,
 			       subjectPublicKey = #'ECPoint'{point = PubKey}}.
@@ -409,9 +401,9 @@ gen_ec2(CurveId) ->
      {PubKey, PrivKey} = crypto:generate_key(ecdh, CurveId),
 
     #'ECPrivateKey'{version = 1,
-		    privateKey = binary_to_list(PrivKey),
+		    privateKey = PrivKey,
 		    parameters = {namedCurve, pubkey_cert_records:namedCurves(CurveId)},
-		    publicKey = {0, PubKey}}.
+		    publicKey = PubKey}.
 
 %% See fips_186-3.pdf
 dsa_search(T, P0, Q, Iter) when Iter > 0 ->
diff --git a/lib/ssl/test/make_certs.erl b/lib/ssl/test/make_certs.erl
index 15a7e118ff..4a193d48fe 100644
--- a/lib/ssl/test/make_certs.erl
+++ b/lib/ssl/test/make_certs.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2007-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2007-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -81,7 +81,7 @@ all(DataDir, PrivDir, C = #config{}) ->
     create_rnd(DataDir, PrivDir),			% For all requests
     rootCA(PrivDir, "erlangCA", C),
     intermediateCA(PrivDir, "otpCA", "erlangCA", C),
-    endusers(PrivDir, "otpCA", ["client", "server", "revoked"], C),
+    endusers(PrivDir, "otpCA", ["client", "server", "revoked", "a.server", "b.server"], C),
     endusers(PrivDir, "erlangCA", ["localhost"], C),
     %% Create keycert files 
     SDir = filename:join([PrivDir, "server"]),
@@ -324,8 +324,9 @@ eval_cmd(Port, Cmd) ->
 	    ok
     end,
     receive
-	{Port, {exit_status, Status}} when Status /= 0 ->
-	    %% io:fwrite("exit status: ~w~n", [Status]),
+	{Port, {exit_status, 0}}  ->
+	    ok;
+	{Port, {exit_status, Status}} ->
 	    exit({eval_cmd, Cmd, Status})
     after 0 ->
 	    ok
@@ -369,7 +370,7 @@ req_cnf(C) ->
      "subjectKeyIdentifier = hash\n"
      "subjectAltName	= email:copy\n"].
 
-ca_cnf(C) ->
+ca_cnf(C = #config{issuing_distribution_point = true}) ->
     ["# Purpose: Configuration for CAs.\n"
      "\n"
      "ROOTDIR	        = $ENV::ROOTDIR\n"
@@ -446,5 +447,83 @@ ca_cnf(C) ->
      "subjectAltName	= email:copy\n"
      "issuerAltName	= issuer:copy\n"
      "crlDistributionPoints=@crl_section\n"
-    ].
+    ];
 
+ca_cnf(C = #config{issuing_distribution_point = false}) ->
+    ["# Purpose: Configuration for CAs.\n"
+     "\n"
+     "ROOTDIR	        = $ENV::ROOTDIR\n"
+     "default_ca	= ca\n"
+     "\n"
+
+     "[ca]\n"
+     "dir		= $ROOTDIR/", C#config.commonName, "\n"
+     "certs		= $dir/certs\n"
+     "crl_dir	        = $dir/crl\n"
+     "database	        = $dir/index.txt\n"
+     "new_certs_dir	= $dir/newcerts\n"
+     "certificate	= $dir/cert.pem\n"
+     "serial		= $dir/serial\n"
+     "crl		= $dir/crl.pem\n",
+     ["crlnumber		= $dir/crlnumber\n" || C#config.v2_crls],
+     "private_key	= $dir/private/key.pem\n"
+     "RANDFILE	        = $dir/private/RAND\n"
+     "\n"
+     "x509_extensions   = user_cert\n",
+     ["crl_extensions = crl_ext\n" || C#config.v2_crls],
+     "unique_subject  = no\n"
+     "default_days	= 3600\n"
+     "default_md	= md5\n"
+     "preserve	        = no\n"
+     "policy		= policy_match\n"
+     "\n"
+
+     "[policy_match]\n"
+     "commonName		= supplied\n"
+     "organizationalUnitName	= optional\n"
+     "organizationName	        = match\n"
+     "countryName		= match\n"
+     "localityName		= match\n"
+     "emailAddress		= supplied\n"
+     "\n"
+
+     "[crl_ext]\n"
+     "authorityKeyIdentifier=keyid:always,issuer:always\n",
+     %["issuingDistributionPoint=critical, @idpsec\n" || C#config.issuing_distribution_point],
+
+     %"[idpsec]\n"
+     %"fullname=URI:http://localhost:8000/",C#config.commonName,"/crl.pem\n"
+
+     "[user_cert]\n"
+     "basicConstraints	= CA:false\n"
+     "keyUsage 		= nonRepudiation, digitalSignature, keyEncipherment\n"
+     "subjectKeyIdentifier = hash\n"
+     "authorityKeyIdentifier = keyid,issuer:always\n"
+     "subjectAltName	= email:copy\n"
+     "issuerAltName	= issuer:copy\n"
+     %"crlDistributionPoints=@crl_section\n"
+
+     %%"[crl_section]\n"
+     %% intentionally invalid
+     %%"URI.1=http://localhost/",C#config.commonName,"/crl.pem\n"
+     %%"URI.2=http://localhost:",integer_to_list(C#config.crl_port),"/",C#config.commonName,"/crl.pem\n"
+     %%"\n"
+
+     "[user_cert_digital_signature_only]\n"
+     "basicConstraints	= CA:false\n"
+     "keyUsage 		= digitalSignature\n"
+     "subjectKeyIdentifier = hash\n"
+     "authorityKeyIdentifier = keyid,issuer:always\n"
+     "subjectAltName	= email:copy\n"
+     "issuerAltName	= issuer:copy\n"
+     "\n"
+
+     "[ca_cert]\n"
+     "basicConstraints 	= critical,CA:true\n"
+     "keyUsage 		= cRLSign, keyCertSign\n"
+     "subjectKeyIdentifier = hash\n"
+     "authorityKeyIdentifier = keyid:always,issuer:always\n"
+     "subjectAltName	= email:copy\n"
+     "issuerAltName	= issuer:copy\n"
+     %"crlDistributionPoints=@crl_section\n"
+    ].
diff --git a/lib/ssl/test/ssl.spec b/lib/ssl/test/ssl.spec
index fc7c1bbb82..86e14c033e 100644
--- a/lib/ssl/test/ssl.spec
+++ b/lib/ssl/test/ssl.spec
@@ -1 +1,4 @@
 {suites,"../ssl_test",all}.
+{skip_cases, "../ssl_test",
+    ssl_bench_SUITE, [setup_sequential, setup_concurrent, payload_simple],
+    "Benchmarks run separately"}.
diff --git a/lib/ssl/test/ssl_alpn_handshake_SUITE.erl b/lib/ssl/test/ssl_alpn_handshake_SUITE.erl
new file mode 100644
index 0000000000..ae76f5849e
--- /dev/null
+++ b/lib/ssl/test/ssl_alpn_handshake_SUITE.erl
@@ -0,0 +1,414 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2008-2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+%%
+-module(ssl_alpn_handshake_SUITE).
+
+%% Note: This directive should only be used in test suites.
+-compile(export_all).
+-include_lib("common_test/include/ct.hrl").
+
+-define(SLEEP, 500).
+
+%%--------------------------------------------------------------------
+%% Common Test interface functions -----------------------------------
+%%--------------------------------------------------------------------
+
+suite() -> [{ct_hooks,[ts_install_cth]}].
+
+all() ->
+    [{group, 'tlsv1.2'},
+     {group, 'tlsv1.1'},
+     {group, 'tlsv1'},
+     {group, 'sslv3'}].
+
+groups() ->
+    [
+     {'tlsv1.2', [], alpn_tests()},
+     {'tlsv1.1', [], alpn_tests()},
+     {'tlsv1', [], alpn_tests()},
+     {'sslv3', [], alpn_not_supported()}
+    ].
+
+alpn_tests() ->
+    [empty_protocols_are_not_allowed,
+     protocols_must_be_a_binary_list,
+     empty_client,
+     empty_server,
+     empty_client_empty_server,
+     no_matching_protocol,
+     client_alpn_and_server_alpn,
+     client_alpn_and_server_no_support,
+     client_no_support_and_server_alpn,
+     client_alpn_npn_and_server_alpn,
+     client_alpn_npn_and_server_alpn_npn,
+     client_alpn_and_server_alpn_npn,
+     client_renegotiate,
+     session_reused
+    ].
+
+alpn_not_supported() ->
+    [alpn_not_supported_client,
+     alpn_not_supported_server
+    ].
+
+init_per_suite(Config) ->
+    catch crypto:stop(),
+    try crypto:start() of
+	ok ->
+	    ssl:start(),
+	    Result =
+		(catch make_certs:all(?config(data_dir, Config),
+				      ?config(priv_dir, Config))),
+	    ct:log("Make certs  ~p~n", [Result]),
+	    ssl_test_lib:cert_options(Config)
+    catch _:_ ->
+	    {skip, "Crypto did not start"}
+    end.
+
+end_per_suite(_Config) ->
+    ssl:stop(),
+    application:unload(ssl),
+    application:stop(crypto).
+
+
+init_per_group(GroupName, Config) ->
+    case ssl_test_lib:is_tls_version(GroupName) of
+	true ->
+	    case ssl_test_lib:sufficient_crypto_support(GroupName) of
+		true ->
+		    ssl_test_lib:init_tls_version(GroupName),
+		    Config;
+		false ->
+		    {skip, "Missing crypto support"}
+	    end;
+	_ ->
+	    ssl:start(),
+	    Config
+    end.
+
+end_per_group(_GroupName, Config) ->
+    Config.
+
+%%--------------------------------------------------------------------
+%% Test Cases --------------------------------------------------------
+%%--------------------------------------------------------------------
+
+empty_protocols_are_not_allowed(Config) when is_list(Config) ->
+    {error, {options, {alpn_preferred_protocols, {invalid_protocol, <<>>}}}}
+	= (catch ssl:listen(9443,
+			    [{alpn_preferred_protocols, [<<"foo/1">>, <<"">>]}])),
+    {error, {options, {alpn_advertised_protocols, {invalid_protocol, <<>>}}}}
+	= (catch ssl:connect({127,0,0,1}, 9443,
+			     [{alpn_advertised_protocols, [<<"foo/1">>, <<"">>]}])).
+
+%--------------------------------------------------------------------------------
+
+protocols_must_be_a_binary_list(Config) when is_list(Config) ->
+    Option1 = {alpn_preferred_protocols, hello},
+    {error, {options, Option1}} = (catch ssl:listen(9443, [Option1])),
+    Option2 = {alpn_preferred_protocols, [<<"foo/1">>, hello]},
+    {error, {options, {alpn_preferred_protocols, {invalid_protocol, hello}}}}
+        = (catch ssl:listen(9443, [Option2])),
+    Option3 = {alpn_advertised_protocols, hello},
+    {error, {options, Option3}} = (catch ssl:connect({127,0,0,1}, 9443, [Option3])),
+    Option4 = {alpn_advertised_protocols, [<<"foo/1">>, hello]},
+    {error, {options, {alpn_advertised_protocols, {invalid_protocol, hello}}}}
+        = (catch ssl:connect({127,0,0,1}, 9443, [Option4])).
+
+%--------------------------------------------------------------------------------
+
+empty_client(Config) when is_list(Config) ->
+    run_failing_handshake(Config,
+        [{alpn_advertised_protocols, []}],
+        [{alpn_preferred_protocols, [<<"spdy/2">>, <<"spdy/3">>, <<"http/2">>]}],
+        {connect_failed,{tls_alert,"no application protocol"}}).
+
+%--------------------------------------------------------------------------------
+
+empty_server(Config) when is_list(Config) ->
+    run_failing_handshake(Config,
+        [{alpn_advertised_protocols, [<<"http/1.0">>, <<"http/1.1">>]}],
+        [{alpn_preferred_protocols, []}],
+        {connect_failed,{tls_alert,"no application protocol"}}).
+
+%--------------------------------------------------------------------------------
+
+empty_client_empty_server(Config) when is_list(Config) ->
+    run_failing_handshake(Config,
+        [{alpn_advertised_protocols, []}],
+        [{alpn_preferred_protocols, []}],
+        {connect_failed,{tls_alert,"no application protocol"}}).
+
+%--------------------------------------------------------------------------------
+
+no_matching_protocol(Config) when is_list(Config) ->
+    run_failing_handshake(Config,
+        [{alpn_advertised_protocols, [<<"http/1.0">>, <<"http/1.1">>]}],
+        [{alpn_preferred_protocols, [<<"spdy/2">>, <<"spdy/3">>, <<"http/2">>]}],
+        {connect_failed,{tls_alert,"no application protocol"}}).
+
+%--------------------------------------------------------------------------------
+
+client_alpn_and_server_alpn(Config) when is_list(Config) ->
+    run_handshake(Config,
+		    [{alpn_advertised_protocols, [<<"http/1.0">>, <<"http/1.1">>]}],
+		    [{alpn_preferred_protocols, [<<"spdy/2">>, <<"http/1.1">>, <<"http/1.0">>]}],
+		    {ok, <<"http/1.1">>}).
+
+%--------------------------------------------------------------------------------
+
+client_alpn_and_server_no_support(Config) when is_list(Config) ->
+    run_handshake(Config,
+		    [{alpn_advertised_protocols, [<<"http/1.0">>, <<"http/1.1">>]}],
+		    [],
+		    {error, protocol_not_negotiated}).
+
+%--------------------------------------------------------------------------------
+
+client_no_support_and_server_alpn(Config) when is_list(Config) ->
+    run_handshake(Config,
+		    [],
+		    [{alpn_preferred_protocols, [<<"spdy/2">>, <<"http/1.1">>, <<"http/1.0">>]}],
+		    {error, protocol_not_negotiated}).
+
+%--------------------------------------------------------------------------------
+
+client_alpn_npn_and_server_alpn(Config) when is_list(Config) ->
+    run_handshake(Config,
+		    [{alpn_advertised_protocols, [<<"http/1.0">>, <<"http/1.1">>]},
+		        {client_preferred_next_protocols, {client, [<<"spdy/2">>], <<"spdy/3">>}}],
+		    [{alpn_preferred_protocols, [<<"spdy/2">>, <<"http/1.1">>, <<"http/1.0">>]}],
+		    {ok, <<"http/1.1">>}).
+
+%--------------------------------------------------------------------------------
+
+client_alpn_npn_and_server_alpn_npn(Config) when is_list(Config) ->
+    run_handshake(Config,
+		    [{alpn_advertised_protocols, [<<"http/1.0">>, <<"http/1.1">>]},
+		        {client_preferred_next_protocols, {client, [<<"spdy/2">>], <<"spdy/3">>}}],
+		    [{alpn_preferred_protocols, [<<"spdy/2">>, <<"http/1.1">>, <<"http/1.0">>]},
+		        {next_protocols_advertised, [<<"spdy/2">>, <<"http/1.0">>]}],
+		    {ok, <<"http/1.1">>}).
+
+%--------------------------------------------------------------------------------
+
+client_alpn_and_server_alpn_npn(Config) when is_list(Config) ->
+    run_handshake(Config,
+		    [{alpn_advertised_protocols, [<<"http/1.0">>, <<"http/1.1">>]}],
+		    [{alpn_preferred_protocols, [<<"spdy/2">>, <<"http/1.1">>, <<"http/1.0">>]},
+		        {next_protocols_advertised, [<<"spdy/2">>, <<"http/1.0">>]}],
+		    {ok, <<"http/1.1">>}).
+
+%--------------------------------------------------------------------------------
+
+client_renegotiate(Config) when is_list(Config) ->
+    Data = "hello world",
+    
+    ClientOpts0 = ?config(client_opts, Config),
+    ClientOpts = [{alpn_advertised_protocols, [<<"http/1.0">>]}] ++ ClientOpts0,
+    ServerOpts0 = ?config(server_opts, Config),
+    ServerOpts = [{alpn_preferred_protocols, [<<"spdy/2">>, <<"http/1.1">>, <<"http/1.0">>]}] ++  ServerOpts0,
+    ExpectedProtocol = {ok, <<"http/1.0">>},
+
+    {ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
+    Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0},
+                    {from, self()},
+                    {mfa, {?MODULE, ssl_receive_and_assert_alpn, [ExpectedProtocol, Data]}},
+                    {options, ServerOpts}]),
+
+    Port = ssl_test_lib:inet_port(Server),
+    Client = ssl_test_lib:start_client([{node, ClientNode}, {port, Port},
+               {host, Hostname},
+               {from, self()},
+               {mfa, {?MODULE, assert_alpn_and_renegotiate_and_send_data, [ExpectedProtocol, Data]}},
+               {options, ClientOpts}]),
+
+    ssl_test_lib:check_result(Server, ok, Client, ok).
+
+%--------------------------------------------------------------------------------
+
+session_reused(Config) when  is_list(Config)->
+    ClientOpts0 = ?config(client_opts, Config),
+    ClientOpts = [{alpn_advertised_protocols, [<<"http/1.0">>]}] ++ ClientOpts0,
+    ServerOpts0 = ?config(server_opts, Config),
+    ServerOpts = [{alpn_preferred_protocols, [<<"spdy/2">>, <<"http/1.1">>, <<"http/1.0">>]}] ++  ServerOpts0,
+
+    {ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
+    Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0},
+                    {from, self()},
+                    {mfa, {ssl_test_lib, session_info_result, []}},
+					{options, ServerOpts}]),
+
+    Port = ssl_test_lib:inet_port(Server),
+    Client = ssl_test_lib:start_client([{node, ClientNode}, {port, Port},
+               {host, Hostname},
+               {from, self()},
+               {mfa, {ssl_test_lib, no_result_msg, []}},
+               {options, ClientOpts}]),
+
+    SessionInfo = 
+	receive
+	    {Server, Info} ->
+		Info
+	end,
+        
+    Server ! {listen, {mfa, {ssl_test_lib, no_result, []}}},
+    
+    %% Make sure session is registered
+    ct:sleep(?SLEEP),
+
+    Client1 =
+	ssl_test_lib:start_client([{node, ClientNode},
+				   {port, Port}, {host, Hostname},
+				   {mfa, {ssl_test_lib, session_info_result, []}},
+				   {from, self()},  {options, ClientOpts}]),
+
+      receive
+	{Client1, SessionInfo} ->
+	    ok;
+	{Client1, Other} ->
+	    ct:fail(Other)
+      end,
+    
+    ssl_test_lib:close(Server), 
+    ssl_test_lib:close(Client),
+    ssl_test_lib:close(Client1).
+
+%--------------------------------------------------------------------------------
+
+alpn_not_supported_client(Config) when is_list(Config) ->
+    ClientOpts0 = ?config(client_opts, Config),
+    PrefProtocols = {client_preferred_next_protocols,
+		     {client, [<<"http/1.0">>], <<"http/1.1">>}},
+    ClientOpts = [PrefProtocols] ++ ClientOpts0,
+    {ClientNode, _ServerNode, Hostname} = ssl_test_lib:run_where(Config),
+    Client = ssl_test_lib:start_client_error([{node, ClientNode}, 
+			    {port, 8888}, {host, Hostname},
+			    {from, self()},  {options, ClientOpts}]),
+    
+    ssl_test_lib:check_result(Client, {error, 
+				       {options, 
+					{not_supported_in_sslv3, PrefProtocols}}}).
+
+%--------------------------------------------------------------------------------
+
+alpn_not_supported_server(Config) when is_list(Config)->
+    ServerOpts0 = ?config(server_opts, Config),
+    AdvProtocols = {next_protocols_advertised, [<<"spdy/2">>, <<"http/1.1">>, <<"http/1.0">>]},
+    ServerOpts = [AdvProtocols] ++  ServerOpts0,
+  
+    {error, {options, {not_supported_in_sslv3, AdvProtocols}}} = ssl:listen(0, ServerOpts).
+
+%%--------------------------------------------------------------------
+%% Internal functions ------------------------------------------------
+%%--------------------------------------------------------------------
+
+run_failing_handshake(Config, ClientExtraOpts, ServerExtraOpts, ExpectedResult) ->
+    ClientOpts = ClientExtraOpts ++ ?config(client_opts, Config),
+    ServerOpts = ServerExtraOpts ++ ?config(server_opts, Config),
+
+    {ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
+    Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0},
+                    {from, self()},
+                    {mfa, {?MODULE, placeholder, []}},
+                    {options, ServerOpts}]),
+
+    Port = ssl_test_lib:inet_port(Server),
+    ExpectedResult
+        = ssl_test_lib:start_client([{node, ClientNode}, {port, Port},
+               {host, Hostname},
+               {from, self()},
+               {mfa, {?MODULE, placeholder, []}},
+               {options, ClientOpts}]).
+
+run_handshake(Config, ClientExtraOpts, ServerExtraOpts, ExpectedProtocol) ->
+    Data = "hello world",
+
+    ClientOpts0 = ?config(client_opts, Config),
+    ClientOpts = ClientExtraOpts ++ ClientOpts0,
+    ServerOpts0 = ?config(server_opts, Config),
+    ServerOpts = ServerExtraOpts ++  ServerOpts0,
+
+    {ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
+    Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0},
+                    {from, self()},
+                    {mfa, {?MODULE, ssl_receive_and_assert_alpn, [ExpectedProtocol, Data]}},
+                    {options, ServerOpts}]),
+
+    Port = ssl_test_lib:inet_port(Server),
+    Client = ssl_test_lib:start_client([{node, ClientNode}, {port, Port},
+               {host, Hostname},
+               {from, self()},
+               {mfa, {?MODULE, ssl_send_and_assert_alpn, [ExpectedProtocol, Data]}},
+               {options, ClientOpts}]),
+
+    ssl_test_lib:check_result(Server, ok, Client, ok).
+
+assert_alpn(Socket, Protocol) ->
+    ct:log("Negotiated Protocol ~p, Expecting: ~p ~n",
+		       [ssl:negotiated_protocol(Socket), Protocol]),
+    Protocol = ssl:negotiated_protocol(Socket).
+
+assert_alpn_and_renegotiate_and_send_data(Socket, Protocol, Data) ->
+    assert_alpn(Socket, Protocol),
+    ct:log("Renegotiating ~n", []),
+    ok = ssl:renegotiate(Socket),
+    ssl:send(Socket, Data),
+    assert_alpn(Socket, Protocol),
+    ok.
+
+ssl_send_and_assert_alpn(Socket, Protocol, Data) ->
+    assert_alpn(Socket, Protocol),
+    ssl_send(Socket, Data).
+
+ssl_receive_and_assert_alpn(Socket, Protocol, Data) ->
+    assert_alpn(Socket, Protocol),
+    ssl_receive(Socket, Data).
+
+ssl_send(Socket, Data) ->
+    ct:log("Connection info: ~p~n",
+               [ssl:connection_information(Socket)]),
+    ssl:send(Socket, Data).
+
+ssl_receive(Socket, Data) ->
+    ssl_receive(Socket, Data, []).
+
+ssl_receive(Socket, Data, Buffer) ->
+    ct:log("Connection info: ~p~n",
+               [ssl:connection_information(Socket)]),
+    receive
+    {ssl, Socket, MoreData} ->
+        ct:log("Received ~p~n",[MoreData]),
+        NewBuffer = Buffer ++ MoreData,
+        case NewBuffer of
+            Data ->
+                ssl:send(Socket, "Got it"),
+                ok;
+            _ ->
+                ssl_receive(Socket, Data, NewBuffer)
+        end;
+    Other ->
+        ct:fail({unexpected_message, Other})
+    after 4000 ->
+        ct:fail({did_not_get, Data})
+    end.
+
+connection_info_result(Socket) ->
+    ssl:connection_information(Socket).
diff --git a/lib/ssl/test/ssl_basic_SUITE.erl b/lib/ssl/test/ssl_basic_SUITE.erl
index 4d5966fed9..e131c363d1 100644
--- a/lib/ssl/test/ssl_basic_SUITE.erl
+++ b/lib/ssl/test/ssl_basic_SUITE.erl
@@ -65,7 +65,7 @@ groups() ->
      {'tlsv1.2', [], all_versions_groups()},
      {'tlsv1.1', [], all_versions_groups()},
      {'tlsv1', [], all_versions_groups() ++ rizzo_tests()},
-     {'sslv3', [], all_versions_groups() ++ rizzo_tests()},
+     {'sslv3', [], all_versions_groups() ++ rizzo_tests() ++ [ciphersuite_vs_version]},
      {api,[], api_tests()},
      {session, [], session_tests()},
      {renegotiate, [], renegotiate_tests()},
@@ -91,6 +91,7 @@ basic_tests() ->
      connect_twice,
      connect_dist,
      clear_pem_cache,
+     defaults,
      fallback
     ].
 
@@ -117,7 +118,6 @@ options_tests() ->
      tcp_reuseaddr,
      honor_server_cipher_order,
      honor_client_cipher_order,
-     ciphersuite_vs_version,
      unordered_protocol_versions_server,
      unordered_protocol_versions_client
 ].
@@ -179,6 +179,9 @@ cipher_tests() ->
      srp_cipher_suites,
      srp_anon_cipher_suites,
      srp_dsa_cipher_suites,
+     rc4_rsa_cipher_suites,
+     rc4_ecdh_rsa_cipher_suites,
+     rc4_ecdsa_cipher_suites,
      default_reject_anonymous].
 
 cipher_tests_ec() ->
@@ -348,7 +351,7 @@ alerts(Config) when is_list(Config) ->
 		  end, Alerts).
 %%--------------------------------------------------------------------
 new_options_in_accept() ->
-    [{doc,"Test that you can set ssl options in ssl_accept/3 and not tcp upgrade"}].
+    [{doc,"Test that you can set ssl options in ssl_accept/3 and not only in tcp upgrade"}].
 new_options_in_accept(Config) when is_list(Config) -> 
     ClientOpts = ?config(client_opts, Config),
     ServerOpts0 = ?config(server_dsa_opts, Config),
@@ -366,7 +369,9 @@ new_options_in_accept(Config) when is_list(Config) ->
 					{host, Hostname},
 					{from, self()}, 
 					{mfa, {?MODULE, connection_info_result, []}},
-					{options, [{versions, [sslv3]} | ClientOpts]}]),
+					{options, [{versions, [sslv3]},
+						   {ciphers,[{rsa,rc4_128,sha}
+							    ]} | ClientOpts]}]),
     
     ct:log("Testcase ~p, Client ~p  Server ~p ~n",
 		       [self(), Client, Server]),
@@ -380,7 +385,7 @@ new_options_in_accept(Config) when is_list(Config) ->
 %%--------------------------------------------------------------------
 
 connection_info() ->
-    [{doc,"Test the API function ssl:connection_info/1"}].
+    [{doc,"Test the API function ssl:connection_information/1"}].
 connection_info(Config) when is_list(Config) -> 
     ClientOpts = ?config(client_opts, Config),
     ServerOpts = ?config(server_opts, Config),
@@ -396,7 +401,7 @@ connection_info(Config) when is_list(Config) ->
 			   {from, self()}, 
 			   {mfa, {?MODULE, connection_info_result, []}},
 			   {options, 
-			    [{ciphers,[{rsa,rc4_128,sha,no_export}]} | 
+			    [{ciphers,[{rsa,des_cbc,sha,no_export}]} | 
 			     ClientOpts]}]),
     
     ct:log("Testcase ~p, Client ~p  Server ~p ~n",
@@ -405,7 +410,7 @@ connection_info(Config) when is_list(Config) ->
     Version = 
 	tls_record:protocol_version(tls_record:highest_protocol_version([])),
     
-    ServerMsg = ClientMsg = {ok, {Version, {rsa,rc4_128,sha}}},
+    ServerMsg = ClientMsg = {ok, {Version, {rsa, des_cbc, sha}}},
 			   
     ssl_test_lib:check_result(Server, ServerMsg, Client, ClientMsg),
     
@@ -634,7 +639,7 @@ clear_pem_cache(Config) when is_list(Config) ->
     {status, _, _, StatusInfo} = sys:get_status(whereis(ssl_manager)),
     [_, _,_, _, Prop] = StatusInfo,
     State = ssl_test_lib:state(Prop),
-    [_,FilRefDb, _] = element(5, State),
+    [_,FilRefDb |_] = element(6, State),
     {Server, Client} = basic_verify_test_no_close(Config),
     2 = ets:info(FilRefDb, size), 
     ssl:clear_pem_cache(),
@@ -1812,6 +1817,32 @@ srp_dsa_cipher_suites(Config) when is_list(Config) ->
     Version = tls_record:protocol_version(tls_record:highest_protocol_version([])),
     Ciphers = ssl_test_lib:srp_dss_suites(),
     run_suites(Ciphers, Version, Config, srp_dsa).
+%%-------------------------------------------------------------------
+rc4_rsa_cipher_suites()->
+    [{doc, "Test the RC4 ciphersuites"}].
+rc4_rsa_cipher_suites(Config) when is_list(Config) ->
+    NVersion = tls_record:highest_protocol_version([]),
+    Version = tls_record:protocol_version(NVersion),
+    Ciphers = ssl_test_lib:rc4_suites(NVersion),
+    run_suites(Ciphers, Version, Config, rc4_rsa).
+%-------------------------------------------------------------------
+rc4_ecdh_rsa_cipher_suites()->
+    [{doc, "Test the RC4 ciphersuites"}].
+rc4_ecdh_rsa_cipher_suites(Config) when is_list(Config) ->
+    NVersion = tls_record:highest_protocol_version([]),
+    Version = tls_record:protocol_version(NVersion),
+    Ciphers = ssl_test_lib:rc4_suites(NVersion),
+    run_suites(Ciphers, Version, Config, rc4_ecdh_rsa).
+
+%%-------------------------------------------------------------------
+rc4_ecdsa_cipher_suites()->
+    [{doc, "Test the RC4 ciphersuites"}].
+rc4_ecdsa_cipher_suites(Config) when is_list(Config) ->
+    NVersion = tls_record:highest_protocol_version([]),
+    Version = tls_record:protocol_version(NVersion),
+    Ciphers = ssl_test_lib:rc4_suites(NVersion),
+    run_suites(Ciphers, Version, Config, rc4_ecdsa).
+
 %%--------------------------------------------------------------------
 default_reject_anonymous()->
     [{doc,"Test that by default anonymous cipher suites are rejected "}].
@@ -2372,7 +2403,7 @@ der_input(Config) when is_list(Config) ->
     {status, _, _, StatusInfo} = sys:get_status(whereis(ssl_manager)),
     [_, _,_, _, Prop] = StatusInfo,
     State = ssl_test_lib:state(Prop),
-    [CADb | _] = element(5, State),
+    [CADb | _] = element(6, State),
     [] = ets:tab2list(CADb).
     
 %%--------------------------------------------------------------------
@@ -2540,6 +2571,16 @@ no_reuses_session_server_restart_new_cert_file(Config) when is_list(Config) ->
     ssl_test_lib:close(Client1).
 
 %%--------------------------------------------------------------------
+defaults(Config) when is_list(Config)->
+    [_, 
+     {supported, Supported},
+     {available, Available}]
+	= ssl:versions(),
+    true = lists:member(sslv3, Available),
+    false = lists:member(sslv3, Supported),
+    false = lists:member({rsa,rc4_128,sha}, ssl:cipher_suites()),
+    true = lists:member({rsa,rc4_128,sha}, ssl:cipher_suites(all)).
+%%--------------------------------------------------------------------
 reuseaddr() ->
     [{doc,"Test reuseaddr option"}].
 
@@ -2664,6 +2705,8 @@ honor_cipher_order(Config, Honor, ServerCiphers, ClientCiphers, Expected) ->
     ssl_test_lib:close(Client).
 
 %%--------------------------------------------------------------------
+ciphersuite_vs_version()  ->
+    [{doc,"Test a SSLv3 client can not negotiate a TLSv* cipher suite."}].
 ciphersuite_vs_version(Config) when is_list(Config) ->
     
     {_ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
@@ -2789,7 +2832,7 @@ listen_socket(Config) ->
 
     {error, enotconn} = ssl:send(ListenSocket, <<"data">>),
     {error, enotconn} = ssl:recv(ListenSocket, 0),
-    {error, enotconn} = ssl:connection_info(ListenSocket),
+    {error, enotconn} = ssl:connection_information(ListenSocket),
     {error, enotconn} = ssl:peername(ListenSocket),
     {error, enotconn} = ssl:peercert(ListenSocket),
     {error, enotconn} = ssl:session_info(ListenSocket),
@@ -3431,7 +3474,7 @@ renegotiate_immediately(Socket) ->
     end,
     ok = ssl:renegotiate(Socket),  
     {error, renegotiation_rejected} = ssl:renegotiate(Socket),
-    ct:sleep(?RENEGOTIATION_DISABLE_TIME +1),
+    ct:sleep(?RENEGOTIATION_DISABLE_TIME + ?SLEEP),
     ok = ssl:renegotiate(Socket),
     ct:log("Renegotiated again"),
     ssl:send(Socket, "Hello world"),
@@ -3775,8 +3818,20 @@ run_suites(Ciphers, Version, Config, Type) ->
 		 ?config(server_ecdsa_opts, Config)};
 	    ecdh_rsa ->
 		{?config(client_opts, Config),
-		 ?config(server_ecdh_rsa_opts, Config)}
-	    end,
+		 ?config(server_ecdh_rsa_opts, Config)};
+	    rc4_rsa ->
+		{?config(client_opts, Config),
+		 [{ciphers, Ciphers} |
+		  ?config(server_opts, Config)]};
+	    rc4_ecdh_rsa ->
+		{?config(client_opts, Config),
+		 [{ciphers, Ciphers} |
+		  ?config(server_ecdh_rsa_opts, Config)]};
+	    rc4_ecdsa ->
+		{?config(client_opts, Config),
+		 [{ciphers, Ciphers} |
+		  ?config(server_ecdsa_opts, Config)]}
+	end,
 
     Result =  lists:map(fun(Cipher) ->
 				cipher(Cipher, Version, Config, ClientOpts, ServerOpts) end,
@@ -3797,6 +3852,7 @@ erlang_cipher_suite(Suite) ->
 cipher(CipherSuite, Version, Config, ClientOpts, ServerOpts) ->
     %% process_flag(trap_exit, true),
     ct:log("Testing CipherSuite ~p~n", [CipherSuite]),
+    ct:log("Server Opts ~p~n", [ServerOpts]),
     {ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
 
     ErlangCipherSuite = erlang_cipher_suite(CipherSuite),
@@ -3829,10 +3885,10 @@ cipher(CipherSuite, Version, Config, ClientOpts, ServerOpts) ->
     end.
 
 connection_info_result(Socket) ->
-    ssl:connection_info(Socket).
-
+    {ok, Info} = ssl:connection_information(Socket, [protocol, cipher_suite]),
+    {ok, {proplists:get_value(protocol, Info), proplists:get_value(cipher_suite, Info)}}.
 version_info_result(Socket) ->
-    {ok, {Version, _}} = ssl:connection_info(Socket),
+    {ok, [{version, Version}]} = ssl:connection_information(Socket, [version]),
     {ok, Version}.
 
 connect_dist_s(S) ->
diff --git a/lib/ssl/test/ssl_bench.spec b/lib/ssl/test/ssl_bench.spec
new file mode 100644
index 0000000000..d2f75b4203
--- /dev/null
+++ b/lib/ssl/test/ssl_bench.spec
@@ -0,0 +1 @@
+{suites,"../ssl_test",[ssl_bench_SUITE]}.
diff --git a/lib/ssl/test/ssl_bench_SUITE.erl b/lib/ssl/test/ssl_bench_SUITE.erl
new file mode 100644
index 0000000000..b6b3769922
--- /dev/null
+++ b/lib/ssl/test/ssl_bench_SUITE.erl
@@ -0,0 +1,366 @@
+%%%-------------------------------------------------------------------
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2014. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.2
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+-module(ssl_bench_SUITE).
+-compile(export_all).
+-include_lib("common_test/include/ct_event.hrl").
+
+-define(remote_host, "NETMARKS_REMOTE_HOST").
+
+suite() -> [{ct_hooks,[{ts_install_cth,[{nodenames,2}]}]}].
+
+all() -> [{group, setup}, {group, payload}].
+
+groups() ->
+    [{setup, [{repeat, 3}], [setup_sequential, setup_concurrent]},
+     {payload, [{repeat, 3}], [payload_simple]}
+    ].
+
+init_per_group(_GroupName, Config) ->
+    Config.
+
+end_per_group(_GroupName, _Config) ->
+    ok.
+
+init_per_suite(Config) ->
+    try
+	Server = setup(ssl, node()),
+	[{server_node, Server}|Config]
+    catch _:_ ->
+	    {skipped, "Benchmark machines only"}
+    end.
+
+end_per_suite(_Config) ->
+    ok.
+
+init_per_testcase(_Func, Conf) ->
+    Conf.
+
+end_per_testcase(_Func, _Conf) ->
+    ok.
+
+
+-define(COUNT, 400).
+-define(TC(Cmd), tc(fun() -> Cmd end, ?MODULE, ?LINE)).
+
+-define(FPROF_CLIENT, false).
+-define(FPROF_SERVER, false).
+-define(EPROF_CLIENT, false).
+-define(EPROF_SERVER, false).
+-define(PERCEPT_SERVER, false).
+
+%% Current numbers gives roughly a testcase per minute on todays hardware..
+
+setup_sequential(Config) ->
+    Server = proplists:get_value(server_node, Config),
+    Server =/= undefined orelse error(no_server),
+    {ok, Result} = do_test(ssl, setup_connection, ?COUNT * 20, 1, Server),
+    ct_event:notify(#event{name = benchmark_data,
+			   data=[{value, Result},
+				 {suite, "ssl"}, {name, "Sequential setup"}]}),
+    ok.
+
+setup_concurrent(Config) ->
+    Server = proplists:get_value(server_node, Config),
+    Server =/= undefined orelse error(no_server),
+    {ok, Result} = do_test(ssl, setup_connection, ?COUNT, 100, Server),
+    ct_event:notify(#event{name = benchmark_data,
+			   data=[{value, Result},
+				 {suite, "ssl"}, {name, "Concurrent setup"}]}),
+    ok.
+
+payload_simple(Config) ->
+    Server = proplists:get_value(server_node, Config),
+    Server =/= undefined orelse error(no_server),
+    {ok, Result} = do_test(ssl, payload, ?COUNT*300, 10, Server),
+    ct_event:notify(#event{name = benchmark_data,
+			   data=[{value, Result},
+				 {suite, "ssl"}, {name, "Payload simple"}]}),
+    ok.
+
+
+ssl() ->
+    test(ssl, ?COUNT, node()).
+
+test(Type, Count, Host) ->
+    Server = setup(Type, Host),
+    (do_test(Type, setup_connection, Count * 20, 1, Server)),
+    (do_test(Type, setup_connection, Count, 100, Server)),
+    (do_test(Type, payload, Count*300, 10, Server)),
+    ok.
+
+do_test(Type, TC, Loop, ParallellConnections, Server) ->
+    _ = ssl:stop(),
+    {ok, _} = ensure_all_started(ssl, []),
+
+    {ok, {SPid, Host, Port}} = rpc:call(Server, ?MODULE, setup_server_init,
+					[Type, TC, Loop, ParallellConnections]),
+    link(SPid),
+    Me = self(),
+    Test = fun(Id) ->
+		   CData = client_init(Me, Type, TC, Host, Port),
+		   receive
+		       go ->
+			   ?FPROF_CLIENT andalso Id =:= 1 andalso
+			       start_profile(fprof, [self(),new]),
+			   ?EPROF_CLIENT andalso Id =:= 1 andalso
+			       start_profile(eprof, [ssl_connection_sup, ssl_manager]),
+			   ok = ?MODULE:TC(Loop, Type, CData),
+			   ?FPROF_CLIENT andalso Id =:= 1 andalso
+			       stop_profile(fprof, "test_connection_client_res.fprof"),
+			   ?EPROF_CLIENT andalso Id =:= 1 andalso
+			       stop_profile(eprof, "test_connection_client_res.eprof"),
+			   Me ! self()
+		   end
+	   end,
+    Spawn = fun(Id) ->
+		    Pid = spawn(fun() -> Test(Id) end),
+		    receive {Pid, init} -> Pid end
+	    end,
+    Pids = [Spawn(Id) || Id <- lists:seq(ParallellConnections, 1, -1)],
+    Run  = fun() ->
+		   [Pid ! go || Pid <- Pids],
+		   [receive Pid -> ok end || Pid <- Pids]
+	   end,
+    {TimeInMicro, _} = timer:tc(Run),
+    TotalTests = ParallellConnections * Loop,
+    TestPerSecond = 1000000 * TotalTests div TimeInMicro,
+    io:format("TC ~p ~p ~p ~p 1/s~n", [TC, Type, ParallellConnections, TestPerSecond]),
+    unlink(SPid),
+    SPid ! quit,
+    {ok, TestPerSecond}.
+
+server_init(ssl, setup_connection, _, _, Server) ->
+    {ok, Socket} = ssl:listen(0, ssl_opts(listen)),
+    {ok, {_Host, Port}} = ssl:sockname(Socket),
+    {ok, Host} = inet:gethostname(),
+    ?FPROF_SERVER andalso start_profile(fprof, [whereis(ssl_manager), new]),
+    %%?EPROF_SERVER andalso start_profile(eprof, [ssl_connection_sup, ssl_manager]),
+    ?EPROF_SERVER andalso start_profile(eprof, [ssl_manager]),
+    ?PERCEPT_SERVER andalso percept:profile("/tmp/ssl_server.percept"),
+    Server ! {self(), {init, Host, Port}},
+    Test = fun(TSocket) ->
+		   ok = ssl:ssl_accept(TSocket),
+		   ssl:close(TSocket)
+	   end,
+    setup_server_connection(Socket, Test);
+server_init(ssl, payload, Loop, _, Server) ->
+    {ok, Socket} = ssl:listen(0, ssl_opts(listen)),
+    {ok, {_Host, Port}} = ssl:sockname(Socket),
+    {ok, Host} = inet:gethostname(),
+    Server ! {self(), {init, Host, Port}},
+    Test = fun(TSocket) ->
+		   ok = ssl:ssl_accept(TSocket),
+		   Size = byte_size(msg()),
+		   server_echo(TSocket, Size, Loop),
+		   ssl:close(TSocket)
+	   end,
+    setup_server_connection(Socket, Test);
+
+server_init(Type, Tc, _, _, Server) ->
+    io:format("No server init code for ~p ~p~n",[Type, Tc]),
+    Server ! {self(), no_init}.
+
+client_init(Master, ssl, setup_connection, Host, Port) ->
+    Master ! {self(), init},
+    {Host, Port, ssl_opts(connect)};
+client_init(Master, ssl, payload, Host, Port) ->
+    {ok, Sock} = ssl:connect(Host, Port, ssl_opts(connect)),
+    Master ! {self(), init},
+    Size = byte_size(msg()),
+    {Sock, Size};
+client_init(_Me, Type, Tc, Host, Port) ->
+    io:format("No client init code for ~p ~p~n",[Type, Tc]),
+    {Host, Port}.
+
+setup_server_connection(LSocket, Test) ->
+    receive quit ->
+	    ?FPROF_SERVER andalso stop_profile(fprof, "test_server_res.fprof"),
+	    ?EPROF_SERVER andalso stop_profile(eprof, "test_server_res.eprof"),
+	    ?PERCEPT_SERVER andalso stop_profile(percept, "/tmp/ssl_server.percept"),
+	    ok
+    after 0 ->
+	    case ssl:transport_accept(LSocket, 2000) of
+		{ok, TSocket} -> spawn_link(fun() -> Test(TSocket) end);
+		{error, timeout} -> ok
+	    end,
+	    setup_server_connection(LSocket, Test)
+    end.
+
+server_echo(Socket, Size, Loop) when Loop > 0 ->
+    {ok, Msg} = ssl:recv(Socket, Size),
+    ok = ssl:send(Socket, Msg),
+    server_echo(Socket, Size, Loop-1);
+server_echo(_, _, _) -> ok.
+
+setup_connection(N, ssl, Env = {Host, Port, Opts}) when N > 0 ->
+    case ssl:connect(Host, Port, Opts) of
+	{ok, Sock} ->
+	    ssl:close(Sock),
+	    setup_connection(N-1, ssl, Env);
+	{error, Error} ->
+	    io:format("Error: ~p (~p)~n",[Error, length(erlang:ports())]),
+	    setup_connection(N, ssl, Env)
+    end;
+setup_connection(_, _, _) ->
+    ok.
+
+payload(Loop, ssl, D = {Socket, Size}) when Loop > 0 ->
+    ok = ssl:send(Socket, msg()),
+    {ok, _} = ssl:recv(Socket, Size),
+    payload(Loop-1, ssl, D);
+payload(_, _, {Socket, _}) ->
+    ssl:close(Socket).
+
+msg() ->
+    <<"Hello", 
+      0:(512*8), 
+      "asdlkjsafsdfoierwlejsdlkfjsdf", 
+      1:(512*8),
+      "asdlkjsafsdfoierwlejsdlkfjsdf">>.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+setup(_Type, nonode@nohost) ->
+    exit(dist_not_enabled);
+setup(Type, _This) ->
+    Host = case os:getenv(?remote_host) of
+	       false ->
+		   {ok, This} = inet:gethostname(),
+		   This;
+	       RemHost ->
+		   RemHost
+	   end,
+    Node = list_to_atom("perf_server@" ++ Host),
+    SlaveArgs = case init:get_argument(pa) of
+	       {ok, PaPaths} ->
+		   lists:append([" -pa " ++ P || [P] <- PaPaths]);
+	       _ -> []
+	   end,
+    %% io:format("Slave args: ~p~n",[SlaveArgs]),
+    Prog =
+	case os:find_executable("erl") of
+	    false -> "erl";
+	    P -> P
+	end,
+    io:format("Prog = ~p~n", [Prog]),
+
+    case net_adm:ping(Node) of
+	pong -> ok;
+	pang ->
+	    {ok, Node} = slave:start(Host, perf_server, SlaveArgs, no_link, Prog)
+    end,
+    Path = code:get_path(),
+    true = rpc:call(Node, code, set_path, [Path]),
+    ok = rpc:call(Node, ?MODULE, setup_server, [Type, node()]),
+    io:format("Client (~p) using ~s~n",[node(), code:which(ssl)]),
+    (Node =:= node()) andalso restrict_schedulers(client),
+    Node.
+
+setup_server(_Type, ClientNode) ->
+    (ClientNode =:= node()) andalso restrict_schedulers(server),
+    io:format("Server (~p) using ~s~n",[node(), code:which(ssl)]),
+    ok.
+
+
+ensure_all_started(App, Ack) ->
+    case application:start(App) of
+	ok -> {ok, [App|Ack]};
+	{error, {not_started, Dep}} ->
+	    {ok, Ack1} = ensure_all_started(Dep, Ack),
+	    ensure_all_started(App, Ack1);
+	{error, {already_started, _}} ->
+	    {ok, Ack}
+    end.
+
+setup_server_init(Type, Tc, Loop, PC) ->
+    _ = ssl:stop(),
+    {ok, _} = ensure_all_started(ssl, []),
+    Me = self(),
+    Pid = spawn_link(fun() -> server_init(Type, Tc, Loop, PC, Me) end),
+    Res = receive
+	      {Pid, {init, Host, Port}} -> {ok, {Pid, Host, Port}};
+	      {Pid, Error} -> {error, Error}
+	  end,
+    unlink(Pid),
+    Res.
+
+restrict_schedulers(Type) ->
+    %% We expect this to run on 8 core machine
+    Extra0 = 1,
+    Extra =  if (Type =:= server) -> -Extra0; true -> Extra0 end,
+    Scheds = erlang:system_info(schedulers),
+    erlang:system_flag(schedulers_online, (Scheds div 2) + Extra).
+
+tc(Fun, Mod, Line) ->
+    case timer:tc(Fun) of
+	{_,{'EXIT',Reason}} ->
+	    io:format("Process EXITED ~p:~p \n", [Mod, Line]),
+	    exit(Reason);
+	{_T,R={error,_}} ->
+	    io:format("Process Error ~p:~p \n", [Mod, Line]),
+	    R;
+	{T,R} ->
+	    io:format("~p:~p: Time: ~p\n", [Mod, Line, T]),
+	    R
+    end.
+
+start_profile(eprof, Procs) ->
+    profiling = eprof:start_profiling(Procs),
+    io:format("(E)Profiling ...",[]);
+start_profile(fprof, Procs) ->
+    fprof:trace([start, {procs, Procs}]),
+    io:format("(F)Profiling ...",[]).
+
+stop_profile(percept, File) ->
+    percept:stop_profile(),
+    percept:analyze(File),
+    {started, _Host, Port} = percept:start_webserver(),
+    wx:new(),
+    wx_misc:launchDefaultBrowser("http://" ++ net_adm:localhost() ++ ":" ++ integer_to_list(Port)),
+    ok;
+stop_profile(eprof, File) ->
+    profiling_stopped = eprof:stop_profiling(),
+    eprof:log(File),
+    io:format(".analysed => ~s ~n",[File]),
+    eprof:analyze(total),
+    eprof:stop();
+stop_profile(fprof, File) ->
+    fprof:trace(stop),
+    io:format("..collect..",[]),
+    fprof:profile(),
+    fprof:analyse([{dest, File},{totals, true}]),
+    io:format(".analysed => ~s ~n",[File]),
+    fprof:stop(),
+    ok.
+
+ssl_opts(listen) ->
+    [{backlog, 500} | ssl_opts("server")];
+ssl_opts(connect) ->
+    [{verify, verify_peer}
+     | ssl_opts("client")];
+ssl_opts(Role) ->
+    Dir = filename:join([code:lib_dir(ssl), "examples", "certs", "etc"]),
+    [{active, false},
+     {depth, 2},
+     {reuseaddr, true},
+     {mode,binary},
+     {nodelay, true},
+     {ciphers, [{dhe_rsa,aes_256_cbc,sha}]},
+     {cacertfile, filename:join([Dir, Role, "cacerts.pem"])},
+     {certfile, filename:join([Dir, Role, "cert.pem"])},
+     {keyfile, filename:join([Dir, Role, "key.pem"])}].
diff --git a/lib/ssl/test/ssl_cipher_SUITE.erl b/lib/ssl/test/ssl_cipher_SUITE.erl
index 0e48b674e0..3433f9a445 100644
--- a/lib/ssl/test/ssl_cipher_SUITE.erl
+++ b/lib/ssl/test/ssl_cipher_SUITE.erl
@@ -84,13 +84,11 @@ aes_decipher_good(Config) when is_list(Config) ->
     decipher_check_good(HashSz, CipherState, {3,3}).
 
 %%--------------------------------------------------------------------
-
 aes_decipher_fail() ->
     [{doc,"Decipher a known cryptotext using a incorrect key"}].
 
 aes_decipher_fail(Config) when is_list(Config) ->
     HashSz = 32,
-
     CipherState = incorrect_cipher_state(),
     decipher_check_fail(HashSz, CipherState, {3,0}),
     decipher_check_fail(HashSz, CipherState, {3,1}),
@@ -111,36 +109,36 @@ padding_test(Config) when is_list(Config)  ->
 %%--------------------------------------------------------------------
 decipher_check_good(HashSz, CipherState, Version) ->
     {Content, NextIV, Mac} = content_nextiv_mac(Version),
-    {Content, Mac,  #cipher_state{iv = NextIV}} = 
-	ssl_cipher:decipher(?AES, HashSz, CipherState, aes_fragment(Version), Version, true).
+    {Content, Mac, _} = 
+	ssl_cipher:decipher(?AES_CBC, HashSz, CipherState, aes_fragment(Version), Version, true).
 
 decipher_check_fail(HashSz, CipherState, Version) ->
     {Content, NextIV, Mac} = content_nextiv_mac(Version),
     true = {Content, Mac, #cipher_state{iv = NextIV}} =/= 
-	ssl_cipher:decipher(?AES, HashSz, CipherState, aes_fragment(Version), Version, true).
+	ssl_cipher:decipher(?AES_CBC, HashSz, CipherState, aes_fragment(Version), Version, true).
 
 pad_test(HashSz, CipherState, {3,0} = Version) ->
     %% 3.0 does not have padding test
     {Content, NextIV, Mac} = badpad_content_nextiv_mac(Version),
     {Content, Mac, #cipher_state{iv = NextIV}} = 
-	ssl_cipher:decipher(?AES, HashSz, CipherState, badpad_aes_fragment({3,0}), {3,0}, true),    
+	ssl_cipher:decipher(?AES_CBC, HashSz, CipherState, badpad_aes_fragment({3,0}), {3,0}, true),    
     {Content, Mac, #cipher_state{iv = NextIV}} = 
-	ssl_cipher:decipher(?AES, HashSz, CipherState, badpad_aes_fragment({3,0}), {3,0}, false);
+	ssl_cipher:decipher(?AES_CBC, HashSz, CipherState, badpad_aes_fragment({3,0}), {3,0}, false);
 pad_test(HashSz, CipherState, {3,1} = Version) ->
     %% 3.1 should have padding test, but may be disabled
     {Content, NextIV, Mac} = badpad_content_nextiv_mac(Version),
     BadCont = badpad_content(Content),
     {Content, Mac, #cipher_state{iv = NextIV}} = 
-	ssl_cipher:decipher(?AES, HashSz, CipherState, badpad_aes_fragment({3,1}) , {3,1}, false),
+	ssl_cipher:decipher(?AES_CBC, HashSz, CipherState, badpad_aes_fragment({3,1}) , {3,1}, false),
     {BadCont, Mac, #cipher_state{iv = NextIV}} = 
-	ssl_cipher:decipher(?AES, HashSz, CipherState, badpad_aes_fragment({3,1}), {3,1}, true);
+	ssl_cipher:decipher(?AES_CBC, HashSz, CipherState, badpad_aes_fragment({3,1}), {3,1}, true);
 pad_test(HashSz, CipherState, Version) ->
     %% 3.2 and 3.3 must have padding test
     {Content, NextIV, Mac} = badpad_content_nextiv_mac(Version),
     BadCont = badpad_content(Content),
-    {BadCont, Mac, #cipher_state{iv = NextIV}} = ssl_cipher:decipher(?AES, HashSz, CipherState, 
+    {BadCont, Mac, #cipher_state{iv = NextIV}} = ssl_cipher:decipher(?AES_CBC, HashSz, CipherState, 
 									      badpad_aes_fragment(Version), Version, false),
-    {BadCont, Mac, #cipher_state{iv = NextIV}} = ssl_cipher:decipher(?AES, HashSz, CipherState,  
+    {BadCont, Mac, #cipher_state{iv = NextIV}} = ssl_cipher:decipher(?AES_CBC, HashSz, CipherState,  
 								     badpad_aes_fragment(Version), Version, true).
     
 aes_fragment({3,N}) when N == 0; N == 1->
@@ -164,7 +162,7 @@ badpad_aes_fragment(_) ->
 
 content_nextiv_mac({3,N})  when N == 0; N == 1 ->
     {<<"HELLO\n">>,
-     <<33,0, 177,251, 91,44, 247,53, 183,198, 165,63, 20,194, 159,107>>,
+     <<72,196,247,97,62,213,222,109,210,204,217,186,172,184, 197,148>>,
      <<71,136,212,107,223,200,70,232,127,116,148,205,232,35,158,113,237,174,15,217,192,168,35,8,6,107,107,233,25,174,90,111>>};
 content_nextiv_mac(_) ->
     {<<"HELLO\n">>,
@@ -193,3 +191,4 @@ correct_cipher_state() ->
 incorrect_cipher_state() ->
     #cipher_state{iv = <<59,201,85,117,188,206,224,136,5,109,46,70,104,79,4,9>>,
 		  key = <<72,196,247,97,62,213,222,109,210,204,217,186,172,184,197,254>>}.
+    
diff --git a/lib/ssl/test/ssl_crl_SUITE.erl b/lib/ssl/test/ssl_crl_SUITE.erl
index bad0949ec4..c6bf8898ad 100644
--- a/lib/ssl/test/ssl_crl_SUITE.erl
+++ b/lib/ssl/test/ssl_crl_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2008-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2008-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -26,43 +26,40 @@
 -include_lib("common_test/include/ct.hrl").
 -include_lib("public_key/include/public_key.hrl").
 
--define(TIMEOUT, 120000).
 -define(LONG_TIMEOUT, 600000).
--define(SLEEP, 1000).
--define(OPENSSL_RENEGOTIATE, "R\n").
--define(OPENSSL_QUIT, "Q\n").
--define(OPENSSL_GARBAGE, "P\n").
--define(EXPIRE, 10).
 
 %%--------------------------------------------------------------------
 %% Common Test interface functions -----------------------------------
 %%--------------------------------------------------------------------
 
-suite() -> [{ct_hooks,[ts_install_cth]}].
+suite() -> 
+    [{ct_hooks,[ts_install_cth]}].
 
 all() -> 
     [
-     {group, basic},
-     {group, v1_crl},
-     {group, idp_crl}
+     {group, check_true},
+     {group, check_peer},
+     {group, check_best_effort}
     ].
 
 groups() ->
-    [{basic,   [], basic_tests()},
-     {v1_crl,  [], v1_crl_tests()},
-     {idp_crl, [], idp_crl_tests()}].
+    [
+     {check_true, [],  [{group, v2_crl},
+			{group, v1_crl},
+			{group, idp_crl}]},
+     {check_peer, [],   [{group, v2_crl},
+			 {group, v1_crl},
+			 {group, idp_crl}]},
+     {check_best_effort, [], [{group, v2_crl},
+			       {group, v1_crl},
+			      {group, idp_crl}]},
+     {v2_crl,  [], basic_tests()},
+     {v1_crl,  [], basic_tests()},
+     {idp_crl, [], basic_tests()}].
 
 basic_tests() ->
     [crl_verify_valid, crl_verify_revoked].
 
-v1_crl_tests() ->
-    [crl_verify_valid, crl_verify_revoked].
-
-idp_crl_tests() ->
-    [crl_verify_valid, crl_verify_revoked].
-
-%%%================================================================
-%%% Suite init/end
 
 init_per_suite(Config0) ->
     Dog = ct:timetrap(?LONG_TIMEOUT *2),
@@ -70,10 +67,7 @@ init_per_suite(Config0) ->
 	false ->
 	    {skip, "Openssl not found"};
 	_ ->
-	    TLSVersion = ?config(tls_version, Config0),
 	    OpenSSL_version = (catch os:cmd("openssl version")),
-	    ct:log("TLS version: ~p~nOpenSSL version: ~p~n~n~p:module_info(): ~p~n~nssl:module_info(): ~p~n",
-		   [TLSVersion, OpenSSL_version, ?MODULE, ?MODULE:module_info(), ssl:module_info()]),
 	    case ssl_test_lib:enough_openssl_crl_support(OpenSSL_version) of
 		false ->
 		    {skip, io_lib:format("Bad openssl version: ~p",[OpenSSL_version])};
@@ -81,7 +75,6 @@ init_per_suite(Config0) ->
 		    catch crypto:stop(),
 		    try crypto:start() of
 			ok ->
-			    ssl:start(),
 			    {ok, Hostname0} = inet:gethostname(),
 			    IPfamily =
 				case lists:member(list_to_atom(Hostname0), ct:get_config(ipv6_hosts,[])) of
@@ -89,8 +82,7 @@ init_per_suite(Config0) ->
 				    false -> inet
 				end,
 			    [{ipfamily,IPfamily}, {watchdog, Dog}, {openssl_version,OpenSSL_version} | Config0]
-		    catch _C:_E ->
-			    ct:log("crypto:start() caught ~p:~p",[_C,_E]),
+		    catch _:_ ->
 			    {skip, "Crypto did not start"}
 		    end
 	    end
@@ -100,443 +92,175 @@ end_per_suite(_Config) ->
     ssl:stop(),
     application:stop(crypto).
 
-%%%================================================================
-%%% Group init/end
-
-init_per_group(Group, Config) ->
-    ssl:start(),
-    inets:start(),
-    CertDir = filename:join(?config(priv_dir, Config), Group),
-    DataDir = ?config(data_dir, Config),
-    ServerRoot = make_dir_path([?config(priv_dir,Config), Group, tmp]),
-    %% start a HTTP server to serve the CRLs
-    {ok, Httpd} = inets:start(httpd, [{ipfamily, ?config(ipfamily,Config)},
-				      {server_name, "localhost"}, {port, 0},
-				      {server_root, ServerRoot},
-				      {document_root, CertDir},
-				      {modules, [mod_get]}
-				     ]),
-    [{port,Port}] = httpd:info(Httpd, [port]),
-    ct:log("~p:~p~nHTTPD IP family=~p, port=~p~n", [?MODULE, ?LINE, ?config(ipfamily,Config), Port]),
-    CertOpts =  [{crl_port,Port}|cert_opts(Group)],
-    Result =  make_certs:all(DataDir, CertDir, CertOpts),
-    ct:log("~p:~p~nmake_certs:all(~n DataDir=~p,~n CertDir=~p,~n ServerRoot=~p~n Opts=~p~n) returned ~p~n", [?MODULE,?LINE,DataDir, CertDir, ServerRoot, CertOpts, Result]),
-    [{make_cert_result, Result}, {cert_dir, CertDir}, {httpd, Httpd} | Config].
-
-cert_opts(v1_crl)  -> [{v2_crls, false}];
-cert_opts(idp_crl) -> [{issuing_distribution_point, true}];
-cert_opts(_) -> [].
-
-make_dir_path(PathComponents) ->
-    lists:foldl(fun(F,P0) -> file:make_dir(P=filename:join(P0,F)), P end,
-		"",
-		PathComponents).
-
+init_per_group(check_true, Config) ->
+    [{crl_check, true} | Config];
+init_per_group(check_peer, Config) ->
+    [{crl_check, peer} | Config];
+init_per_group(check_best_effort, Config) ->
+    [{crl_check, best_effort} | Config];
+init_per_group(Group, Config0) ->
+    case is_idp(Group) of
+	true ->
+	    [{idp_crl, true} | Config0];
+	false ->
+	    DataDir = ?config(data_dir, Config0), 
+	    CertDir = filename:join(?config(priv_dir, Config0), Group),
+	    {CertOpts, Config} = init_certs(CertDir, Group, Config0),
+	    Result =  make_certs:all(DataDir, CertDir, CertOpts),
+	    [{make_cert_result, Result}, {cert_dir, CertDir}, {idp_crl, false} | Config]
+    end.
 
 end_per_group(_GroupName, Config) ->
-    case ?config(httpd, Config) of
-	undefined -> ok;
-	Pid -> 
-	    ct:log("Stop httpd ~p",[Pid]),
-	   ok = inets:stop(httpd, Pid)
-		,ct:log("Stopped",[])
-    end,
-    inets:stop(),
+    
     Config.
 
+init_per_testcase(Case, Config0) ->
+    case ?config(idp_crl, Config0) of
+	true ->
+	    end_per_testcase(Case, Config0),
+	    inets:start(),
+	    ssl:start(),
+	    ServerRoot = make_dir_path([?config(priv_dir, Config0), idp_crl, tmp]),
+	    %% start a HTTP server to serve the CRLs
+	    {ok, Httpd} = inets:start(httpd, [{ipfamily, ?config(ipfamily, Config0)},
+					      {server_name, "localhost"}, {port, 0},
+					      {server_root, ServerRoot},
+					      {document_root, 
+					       filename:join(?config(priv_dir, Config0), idp_crl)}
+					     ]),
+	    [{port,Port}] = httpd:info(Httpd, [port]),
+	    Config = [{httpd_port, Port} | Config0],
+	    DataDir = ?config(data_dir, Config), 
+	    CertDir = filename:join(?config(priv_dir, Config0), idp_crl),
+	    {CertOpts, Config} = init_certs(CertDir, idp_crl, Config),
+	    Result =  make_certs:all(DataDir, CertDir, CertOpts),
+	    [{make_cert_result, Result}, {cert_dir, CertDir} | Config];
+	false ->
+	    end_per_testcase(Case, Config0),
+	    ssl:start(),
+	    Config0
+    end.
+
+end_per_testcase(_, Config) ->
+    case ?config(idp_crl, Config) of
+	true ->
+	    ssl:stop(),
+	    inets:stop();
+	false ->
+	    ssl:stop()
+    end.
+
 %%%================================================================
 %%% Test cases
+%%%================================================================
 
 crl_verify_valid() ->
     [{doc,"Verify a simple valid CRL chain"}].
 crl_verify_valid(Config) when is_list(Config) ->
-    process_flag(trap_exit, true),
     PrivDir = ?config(cert_dir, Config),
-    ServerOpts = [{keyfile, filename:join([PrivDir, "server", "key.pem"])},
-		  {certfile, filename:join([PrivDir, "server", "cert.pem"])},
-		  {cacertfile, filename:join([PrivDir, "server", "cacerts.pem"])}],
-
+    Check = ?config(crl_check, Config),
+    ServerOpts =  [{keyfile, filename:join([PrivDir, "server", "key.pem"])},
+      		  {certfile, filename:join([PrivDir, "server", "cert.pem"])},
+		   {cacertfile, filename:join([PrivDir, "server", "cacerts.pem"])}],
+    ClientOpts =  case ?config(idp_crl, Config) of 
+		      true ->	       
+			  [{cacertfile, filename:join([PrivDir, "server", "cacerts.pem"])},
+			   {crl_check, Check},
+			   {crl_cache, {ssl_crl_cache, {internal, [{http, 5000}]}}},
+			   {verify, verify_peer}];
+		      false ->
+			  [{cacertfile, filename:join([PrivDir, "server", "cacerts.pem"])},
+			   {crl_check, Check},
+			   {verify, verify_peer}]
+		  end,			  
     {ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
-    Data = "From openssl to erlang",
 
-    Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0}, 
-					{from, self()}, 
-			   {mfa, {?MODULE, erlang_ssl_receive, [Data]}},
-			   %{mfa, {ssl_test_lib, no_result, []}},
-			   {options, ServerOpts}]),
-    ct:log("~p:~p~nreturn from ssl_test_lib:start_server:~n~p",[?MODULE,?LINE,Server]),
-    Port = ssl_test_lib:inet_port(Server),
-
-    CACerts = load_cert(filename:join([PrivDir, "erlangCA", "cacerts.pem"])),
-
-    ClientOpts = [{cacerts, CACerts},
-		  {verify, verify_peer},
-		  {verify_fun, {fun validate_function/3, {CACerts, []}}}],
-
-
-    ct:log("~p:~p~ncalling ssl_test_lib:start_client",[?MODULE,?LINE]),
-    Client = ssl_test_lib:start_client([{node, ClientNode}, {port, Port}, 
-					{host, Hostname},
-					{from, self()}, 
-					{mfa, {?MODULE, 
-					       erlang_ssl_send, [Data]}},
-					%{mfa, {ssl_test_lib, no_result, []}},
-					{options, ClientOpts}]),
-    ct:log("~p:~p~nreturn from ssl_test_lib:start_client:~n~p",[?MODULE,?LINE,Client]),
-
-    ssl_test_lib:check_result(Client, ok,  Server, ok),
-
-    %% Clean close down!   Server needs to be closed first !!
-    ssl_test_lib:close(Server),
-    ssl_test_lib:close(Client),
-    process_flag(trap_exit, false).
+    ssl_crl_cache:insert({file, filename:join([PrivDir, "erlangCA", "crl.pem"])}),
+    ssl_crl_cache:insert({file, filename:join([PrivDir, "otpCA", "crl.pem"])}),
+    
+    crl_verify_valid(Hostname, ServerNode, ServerOpts, ClientNode, ClientOpts).
 
 crl_verify_revoked() ->
-    [{doc,"Verify a simple valid CRL chain"}].
-crl_verify_revoked(Config) when is_list(Config) ->
-    process_flag(trap_exit, true),
+    [{doc,"Verify a simple CRL chain when peer cert is reveoked"}].
+crl_verify_revoked(Config)  when is_list(Config) ->
     PrivDir = ?config(cert_dir, Config),
+    Check = ?config(crl_check, Config),
     ServerOpts = [{keyfile, filename:join([PrivDir, "revoked", "key.pem"])},
-		  {certfile, filename:join([PrivDir, "revoked", "cert.pem"])},
-		  {cacertfile, filename:join([PrivDir, "revoked", "cacerts.pem"])}],
-    ct:log("~p:~p~nserver opts ~p~n", [?MODULE,?LINE, ServerOpts]),
+      		  {certfile, filename:join([PrivDir, "revoked", "cert.pem"])},
+      		  {cacertfile, filename:join([PrivDir, "revoked", "cacerts.pem"])}],
 
     {ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
 
-    Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0}, 
-					{from, self()}, 
-			   %{mfa, {?MODULE, erlang_ssl_receive, [Data]}},
-			   {mfa, {ssl_test_lib, no_result, []}},
-			   {options, ServerOpts}]),
+    Server = ssl_test_lib:start_server_error([{node, ServerNode}, {port, 0}, 
+					      {from, self()}, 
+					      {options, ServerOpts}]),
     Port = ssl_test_lib:inet_port(Server),
+    
+    ssl_crl_cache:insert({file, filename:join([PrivDir, "erlangCA", "crl.pem"])}),
+    ssl_crl_cache:insert({file, filename:join([PrivDir, "otpCA", "crl.pem"])}),
+    
+    ClientOpts =  case ?config(idp_crl, Config) of 
+		      true ->	       
+			  [{cacertfile, filename:join([PrivDir, "revoked", "cacerts.pem"])},
+			   {crl_cache, {ssl_crl_cache, {internal, [{http, 5000}]}}},
+			   {crl_check, Check},
+			   {verify, verify_peer}];
+		      false ->
+			  [{cacertfile, filename:join([PrivDir, "revoked", "cacerts.pem"])},
+			   {crl_check, Check},
+			   {verify, verify_peer}]
+		  end,	
+    
+    Client = ssl_test_lib:start_client_error([{node, ClientNode}, {port, Port}, 
+     					      {host, Hostname},
+   					      {from, self()}, 
+     					      {options, ClientOpts}]),
+    receive
+	{Server, AlertOrColse} ->
+	    ct:pal("Server Alert or Close ~p", [AlertOrColse])
+    end,	    
+    ssl_test_lib:check_result(Client, {error, {tls_alert, "certificate revoked"}}).
 
-    CACerts = load_cert(filename:join([PrivDir, "erlangCA", "cacerts.pem"])),
-    ClientOpts = [{cacerts, CACerts},
-		  {verify, verify_peer},
-		  {verify_fun, {fun validate_function/3, {CACerts, []}}}],
 
-    {connect_failed, _} = ssl_test_lib:start_client([{node, ClientNode}, {port, Port}, 
+crl_verify_valid(Hostname, ServerNode, ServerOpts, ClientNode, ClientOpts) ->
+    Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0}, 
+					{from, self()}, 
+					{mfa, {ssl_test_lib, 
+					       send_recv_result_active, []}},				       
+					{options, ServerOpts}]),
+    Port = ssl_test_lib:inet_port(Server), 
+    Client = ssl_test_lib:start_client([{node, ClientNode}, {port, Port}, 
 					{host, Hostname},
 					{from, self()}, 
-					%{mfa, {?MODULE, 
-					       %erlang_ssl_receive, [Data]}},
-					{mfa, {ssl_test_lib, no_result, []}},
+					{mfa, {ssl_test_lib, 
+					       send_recv_result_active, []}},
 					{options, ClientOpts}]),
+    
+    ssl_test_lib:check_result(Client, ok,  Server, ok),
 
-    %% Clean close down!   Server needs to be closed first !!
     ssl_test_lib:close(Server),
-    process_flag(trap_exit, false).
-
-%%%================================================================
-%%% Lib
-
-erlang_ssl_receive(Socket, Data) ->
-    ct:log("~p:~p~nConnection info: ~p~n",
-		       [?MODULE,?LINE, ssl:connection_info(Socket)]),
-    receive
-	{ssl, Socket, Data} ->
-	    ct:log("~p:~p~nReceived ~p~n",[?MODULE,?LINE, Data]),
-	    %% open_ssl server sometimes hangs waiting in blocking read
-	    ssl:send(Socket, "Got it"), 
-	    ok;
-	{ssl, Socket, Byte} when length(Byte) == 1 ->
-	    erlang_ssl_receive(Socket, tl(Data));
-	{Port, {data,Debug}} when is_port(Port) ->
-	    ct:log("~p:~p~nopenssl ~s~n",[?MODULE,?LINE, Debug]),
-	    erlang_ssl_receive(Socket,Data);
-	Other ->
-	    ct:fail({unexpected_message, Other})
-    after 4000 ->
-	    ct:fail({did_not_get, Data})
-    end.
-
-
-erlang_ssl_send(Socket, Data) ->
-    ct:log("~p:~p~nConnection info: ~p~n",
-		       [?MODULE,?LINE, ssl:connection_info(Socket)]),
-    ssl:send(Socket, Data),
-    ok.
-
-load_certs(undefined) ->
-    undefined;
-load_certs(CertDir) ->
-    case file:list_dir(CertDir) of
-        {ok, Certs} ->
-            load_certs(lists:map(fun(Cert) -> filename:join(CertDir, Cert)
-                    end, Certs), []);
-        {error, _} ->
-            undefined
-    end.
-
-load_certs([], Acc) ->
-    ct:log("~p:~p~nSuccessfully loaded ~p CA certificates~n", [?MODULE,?LINE, length(Acc)]),
-    Acc;
-load_certs([Cert|Certs], Acc) ->
-    case filelib:is_dir(Cert) of
-        true ->
-            load_certs(Certs, Acc);
-        _ ->
-            %ct:log("~p:~p~nLoading certificate ~p~n", [?MODULE,?LINE, Cert]),
-            load_certs(Certs, load_cert(Cert) ++ Acc)
-    end.
-
-load_cert(Cert) ->
-    {ok, Bin} = file:read_file(Cert),
-    case filename:extension(Cert) of
-        ".der" ->
-            %% no decoding necessary
-            [Bin];
-        _ ->
-            %% assume PEM otherwise
-            Contents = public_key:pem_decode(Bin),
-            [DER || {Type, DER, Cipher} <- Contents, Type == 'Certificate', Cipher == 'not_encrypted']
-    end.
-
-%% @doc Validator function for SSL negotiation.
-%%
-validate_function(Cert, valid_peer, State) ->
-    ct:log("~p:~p~nvaliding peer ~p with ~p intermediate certs~n",
-                [?MODULE,?LINE, get_common_name(Cert), 
-                 length(element(2, State))]),
-    %% peer certificate validated, now check the CRL
-    Res = (catch check_crl(Cert, State)),
-    ct:log("~p:~p~nCRL validate result for ~p: ~p~n",
-                [?MODULE,?LINE, get_common_name(Cert), Res]),
-    {Res, State};
-validate_function(Cert, valid, {TrustedCAs, IntermediateCerts}=State) ->
-    case public_key:pkix_is_self_signed(Cert) of
-        true ->
-            ct:log("~p:~p~nroot certificate~n",[?MODULE,?LINE]),
-            %% this is a root cert, no CRL
-            {valid, {TrustedCAs, [Cert|IntermediateCerts]}};
-        false ->
-            %% check is valid CA certificate, add to the list of
-            %% intermediates
-            Res = (catch check_crl(Cert, State)),
-            ct:log("~p:~p~nCRL intermediate CA validate result for ~p: ~p~n",
-                        [?MODULE,?LINE, get_common_name(Cert), Res]),
-            {Res, {TrustedCAs, [Cert|IntermediateCerts]}}
-    end;
-validate_function(_Cert, _Event, State) ->
-    %ct:log("~p:~p~nignoring event ~p~n", [?MODULE,?LINE, _Event]),
-    {valid, State}.
+    ssl_test_lib:close(Client).
 
-%% @doc Given a certificate, find CRL distribution points for the given
-%%      certificate, fetch, and attempt to validate each CRL through
-%%      issuer_function/4.
-%%
-check_crl(Cert, State) ->
-    %% pull the CRL distribution point(s) out of the certificate, if any
-    ct:log("~p:~p~ncheck_crl(~n Cert=~p,~nState=~p~n)",[?MODULE,?LINE,Cert,State]),
-    case pubkey_cert:select_extension(
-	   ?'id-ce-cRLDistributionPoints',
-	   pubkey_cert:extensions_list(Cert#'OTPCertificate'.tbsCertificate#'OTPTBSCertificate'.extensions)) of
-        undefined ->
-            ct:log("~p:~p~nno CRL distribution points for ~p~n",
-                         [?MODULE,?LINE, get_common_name(Cert)]),
-            %% fail; we can't validate if there's no CRL
-            no_crl;
-        CRLExtension ->
-	    ct:log("~p:~p~nCRLExtension=~p)",[?MODULE,?LINE,CRLExtension]),
-            CRLDistPoints = CRLExtension#'Extension'.extnValue,
-            DPointsAndCRLs = lists:foldl(fun(Point, Acc) -> 
-                            %% try to read the CRL over http or from a
-                            %% local file
-                            case fetch_point(Point) of
-                                not_available ->
-				    ct:log("~p:~p~nfetch_point returned~n~p~n)",[?MODULE,?LINE,not_available]),
-                                    Acc;
-                                Res ->
-				    ct:log("~p:~p~nfetch_point returned~n~p~n)",[?MODULE,?LINE,Res]),
-                                    [{Point, Res} | Acc]
-                            end 
-                    end, [], CRLDistPoints),
-            public_key:pkix_crls_validate(Cert, 
-                                          DPointsAndCRLs, 
-                                          [{issuer_fun, 
-                                            {fun issuer_function/4, State}}])
-    end.
-
-%% @doc Given a list of distribution points for CRLs, certificates and
-%%      both trusted and intermediary certificates, attempt to build and
-%%      authority chain back via build_chain to verify that it is valid.
-%%
-issuer_function(_DP, CRL, _Issuer, {TrustedCAs, IntermediateCerts}) ->
-    %% XXX the 'Issuer' we get passed here is the AuthorityKeyIdentifier,
-    %% which we are not currently smart enough to understand
-    %% Read the CA certs out of the file
-    ct:log("~p:~p~nissuer_function(~nCRL=~p,~nLast param=~p)",[?MODULE,?LINE,CRL, {TrustedCAs, IntermediateCerts}]),
-    Certs = [public_key:pkix_decode_cert(DER, otp) || DER <- TrustedCAs],
-    %% get the real issuer out of the CRL
-    Issuer = public_key:pkix_normalize_name(
-            pubkey_cert_records:transform(
-                CRL#'CertificateList'.tbsCertList#'TBSCertList'.issuer, decode)),
-    %% assume certificates are ordered from root to tip
-    case find_issuer(Issuer, IntermediateCerts ++ Certs) of
-        undefined ->
-            ct:log("~p:~p~nunable to find certificate matching CRL issuer ~p~n", 
-                        [?MODULE,?LINE, Issuer]),
-            error;
-        IssuerCert ->
-	    ct:log("~p:~p~nIssuerCert=~p~n)",[?MODULE,?LINE,IssuerCert]),
-            case build_chain({public_key:pkix_encode('OTPCertificate', 
-                                                     IssuerCert, 
-                                                     otp), 
-                              IssuerCert}, IntermediateCerts, Certs, []) of
-                undefined ->
-                    error;
-                {OTPCert, Path} ->
-                    {ok, OTPCert, Path}
-            end
-    end.
-
-%% @doc Attempt to build authority chain back using intermediary
-%%      certificates, falling back on trusted certificates if the
-%%      intermediary chain of certificates does not fully extend to the 
-%%      root.
-%% 
-%%      Returns: {RootCA :: #OTPCertificate{}, Chain :: [der_encoded()]}
-%%
-build_chain({DER, Cert}, IntCerts, TrustedCerts, Acc) ->
-    %% check if this cert is self-signed, if it is, we've reached the
-    %% root of the chain
-    Issuer = public_key:pkix_normalize_name(
-            Cert#'OTPCertificate'.tbsCertificate#'OTPTBSCertificate'.issuer),
-    Subject = public_key:pkix_normalize_name(
-            Cert#'OTPCertificate'.tbsCertificate#'OTPTBSCertificate'.subject),
-    case Issuer == Subject of
-        true ->
-            case find_issuer(Issuer, TrustedCerts) of
-                undefined ->
-                    ct:log("~p:~p~nself-signed certificate is NOT trusted~n",[?MODULE,?LINE]),
-                    undefined;
-                TrustedCert ->
-                    %% return the cert from the trusted list, to prevent
-                    %% issuer spoofing
-                    {TrustedCert, 
-                     [public_key:pkix_encode(
-                                'OTPCertificate', TrustedCert, otp)|Acc]}
-            end;
-        false ->
-            Match = lists:foldl(
-                      fun(C, undefined) ->
-                              S = public_key:pkix_normalize_name(C#'OTPCertificate'.tbsCertificate#'OTPTBSCertificate'.subject),
-                              %% compare the subject to the current issuer
-                              case Issuer == S of
-                                  true ->
-                                      %% we've found our man
-                                      {public_key:pkix_encode('OTPCertificate', C, otp), C};
-                                  false ->
-                                      undefined
-                              end;
-                         (_E, A) ->
-                              %% already matched
-                              A
-                      end, undefined, IntCerts),
-            case Match of
-                undefined when IntCerts /= TrustedCerts ->
-                    %% continue the chain by using the trusted CAs
-                    ct:log("~p:~p~nRan out of intermediate certs, switching to trusted certs~n",[?MODULE,?LINE]),
-                    build_chain({DER, Cert}, TrustedCerts, TrustedCerts, Acc);
-                undefined ->
-                    ct:log("Can't construct chain of trust beyond ~p~n",
-                                [?MODULE,?LINE, get_common_name(Cert)]),
-                    %% can't find the current cert's issuer
-                    undefined;
-                Match ->
-                    build_chain(Match, IntCerts, TrustedCerts, [DER|Acc])
-            end
-    end.
-
-%% @doc Given a certificate and a list of trusted or intermediary
-%%      certificates, attempt to find a match in the list or bail with
-%%      undefined.
-find_issuer(Issuer, Certs) ->
-    lists:foldl(
-      fun(OTPCert, undefined) ->
-              %% check if this certificate matches the issuer
-              Normal = public_key:pkix_normalize_name(
-                        OTPCert#'OTPCertificate'.tbsCertificate#'OTPTBSCertificate'.subject),
-              case Normal == Issuer of
-                  true ->
-                      OTPCert;
-                  false ->
-                      undefined
-              end;
-         (_E, Acc) ->
-              %% already found a match
-              Acc
-      end, undefined, Certs).
-
-%% @doc Find distribution points for a given CRL and then attempt to
-%%      fetch the CRL from the first available.
-fetch_point(#'DistributionPoint'{distributionPoint={fullName, Names}}) ->
-    Decoded = [{NameType, 
-                pubkey_cert_records:transform(Name, decode)} 
-               || {NameType, Name} <- Names],
-    ct:log("~p:~p~ncall fetch(~nDecoded=~p~n)",[?MODULE,?LINE,Decoded]),
-    fetch(Decoded).
-
-%% @doc Given a list of locations to retrieve a CRL from, attempt to
-%%      retrieve either from a file or http resource and bail as soon as
-%%      it can be found.
-%%
-%%      Currently, only hand a armored PEM or DER encoded file, with
-%%      defaulting to DER.
-%%
-fetch([]) ->
-    not_available;
-fetch([{uniformResourceIdentifier, "http"++_=URL}|Rest]) ->
-    ct:log("~p:~p~ngetting CRL from ~p~n", [?MODULE,?LINE, URL]),
-    case httpc:request(get, {URL, []}, [], [{body_format, binary}]) of
-        {ok, {_Status, _Headers, Body}} ->
-            case Body of
-                <<"-----BEGIN", _/binary>> ->
-		    ct:log("~p:~p~npublic_key:pem_decode,~nBody=~p~n)",[?MODULE,?LINE,Body]),
-                    [{'CertificateList', 
-                      DER, _}=CertList] = public_key:pem_decode(Body),
-		    ct:log("~p:~p~npublic_key:pem_entry_decode,~nCertList=~p~n)",[?MODULE,?LINE,CertList]),
-                    {DER, public_key:pem_entry_decode(CertList)};
-                _ ->
-		    ct:log("~p:~p~npublic_key:pem_entry_decode,~nBody=~p~n)",[?MODULE,?LINE,{'CertificateList', Body, not_encrypted}]),
-                    %% assume DER encoded
-		    try 
-			public_key:pem_entry_decode({'CertificateList', Body, not_encrypted})
-		    of 
-			CertList -> {Body, CertList}
-		    catch
-			_C:_E ->
-			    ct:log("~p:~p~nfailed DER assumption~nRest=~p", [?MODULE,?LINE,Rest]),
-			    fetch(Rest)
-		    end
-            end;
-        {error, _Reason} ->
-            ct:log("~p:~p~nfailed to get CRL ~p~n", [?MODULE,?LINE, _Reason]),
-            fetch(Rest);
-	Other ->
-            ct:log("~p:~p~nreally failed to get CRL ~p~n", [?MODULE,?LINE, Other]),
-            fetch(Rest)
-    end;
-fetch([Loc|Rest]) ->
-    %% unsupported CRL location
-    ct:log("~p:~p~nunable to fetch CRL from unsupported location ~p~n", 
-                [?MODULE,?LINE, Loc]),
-    fetch(Rest).
+%%--------------------------------------------------------------------
+%% Internal functions ------------------------------------------------
+%%--------------------------------------------------------------------
+is_idp(idp_crl) ->
+    true;
+is_idp(_) ->
+    false.
+
+init_certs(_,v1_crl, Config)  -> 
+    {[{v2_crls, false}], Config};
+init_certs(_, idp_crl, Config) -> 
+    Port = ?config(httpd_port, Config),
+    {[{crl_port,Port},
+      {issuing_distribution_point, true}], Config
+    };
+init_certs(_,_,Config) -> 
+    {[], Config}.
 
-%% get the common name attribute out of an OTPCertificate record
-get_common_name(OTPCert) ->
-    %% You'd think there'd be an easier way than this giant mess, but I
-    %% couldn't find one.
-    {rdnSequence, Subject} = OTPCert#'OTPCertificate'.tbsCertificate#'OTPTBSCertificate'.subject,
-    case [Attribute#'AttributeTypeAndValue'.value || [Attribute] <- Subject,
-        Attribute#'AttributeTypeAndValue'.type == ?'id-at-commonName'] of
-        [Att] ->
-            case Att of
-                {teletexString, Str} -> Str;
-                {printableString, Str} -> Str;
-                {utf8String, Bin} -> binary_to_list(Bin)
-            end;
-        _ ->
-            unknown
-    end.
+make_dir_path(PathComponents) ->
+    lists:foldl(fun(F,P0) -> file:make_dir(P=filename:join(P0,F)), P end,
+		"",
+		PathComponents).
 
diff --git a/lib/ssl/test/ssl_handshake_SUITE.erl b/lib/ssl/test/ssl_handshake_SUITE.erl
index 8dca733526..d4433393a1 100644
--- a/lib/ssl/test/ssl_handshake_SUITE.erl
+++ b/lib/ssl/test/ssl_handshake_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2008-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2008-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -40,7 +40,47 @@ all() -> [decode_hello_handshake,
 	  encode_single_hello_sni_extension_correctly,
 	  decode_single_hello_sni_extension_correctly,
 	  decode_empty_server_sni_correctly,
-	  select_proper_tls_1_2_rsa_default_hashsign].
+	  select_proper_tls_1_2_rsa_default_hashsign,
+	  ignore_hassign_extension_pre_tls_1_2].
+
+%%--------------------------------------------------------------------
+init_per_suite(Config) ->
+    Config.
+end_per_suite(Config) ->
+    Config.
+
+init_per_group(_GroupName, Config) ->
+    Config.
+
+end_per_group(_,Config) ->
+    Config.
+
+init_per_testcase(ignore_hassign_extension_pre_tls_1_2, Config0) ->
+    catch crypto:stop(),
+    try crypto:start() of
+	ok ->
+	    case is_supported(sha512) of
+		true ->
+		    ssl:start(),
+		    %% make rsa certs using oppenssl
+		    Result =
+			(catch make_certs:all(?config(data_dir, Config0),
+					      ?config(priv_dir, Config0))),
+		    ct:log("Make certs  ~p~n", [Result]),
+		    ssl_test_lib:cert_options(Config0);
+		false ->
+		    {skip, "Crypto did not support sha512"}  
+	    end
+    catch _:_ ->
+	    {skip, "Crypto did not start"}
+    end;
+init_per_testcase(_, Config0) ->
+    Config0.
+
+end_per_testcase(ignore_hassign_extension_pre_tls_1_2, _) ->
+    crypto:stop();
+end_per_testcase(_TestCase, Config) ->
+    Config.
 
 %%--------------------------------------------------------------------
 %% Test Cases --------------------------------------------------------
@@ -121,3 +161,18 @@ select_proper_tls_1_2_rsa_default_hashsign(_Config) ->
     {md5sha, rsa} = ssl_handshake:select_hashsign_algs(undefined, ?rsaEncryption, {3,2}),
     {md5sha, rsa} = ssl_handshake:select_hashsign_algs(undefined, ?rsaEncryption, {3,0}).
 
+
+ignore_hassign_extension_pre_tls_1_2(Config) ->
+    Opts = ?config(server_opts, Config),
+    CertFile = proplists:get_value(certfile, Opts),
+    [{_, Cert, _}] = ssl_test_lib:pem_to_der(CertFile),
+    HashSigns = #hash_sign_algos{hash_sign_algos = [{sha512, rsa}, {sha, dsa}]},
+    {sha512, rsa} = ssl_handshake:select_hashsign(HashSigns, Cert, {3,3}),
+    %%% Ignore
+    {md5sha, rsa} = ssl_handshake:select_hashsign(HashSigns, Cert, {3,2}),
+    {md5sha, rsa} = ssl_handshake:select_hashsign(HashSigns, Cert, {3,0}).
+
+is_supported(Hash) ->
+    Algos = crypto:supports(),
+    Hashs = proplists:get_value(hashs, Algos), 
+    lists:member(Hash, Hashs).
diff --git a/lib/ssl/test/ssl_npn_handshake_SUITE.erl b/lib/ssl/test/ssl_npn_handshake_SUITE.erl
index 30c0a67a36..8e95679306 100644
--- a/lib/ssl/test/ssl_npn_handshake_SUITE.erl
+++ b/lib/ssl/test/ssl_npn_handshake_SUITE.erl
@@ -172,7 +172,7 @@ no_client_negotiate_but_server_supports_npn(Config) when is_list(Config) ->
     run_npn_handshake(Config,
 			   [],
 			   [{next_protocols_advertised, [<<"spdy/1">>, <<"http/1.1">>, <<"http/1.0">>]}],
-			   {error, next_protocol_not_negotiated}).
+			   {error, protocol_not_negotiated}).
 %--------------------------------------------------------------------------------
 
 
@@ -180,7 +180,7 @@ client_negotiate_server_does_not_support(Config) when is_list(Config) ->
     run_npn_handshake(Config,
 			   [{client_preferred_next_protocols, {client, [<<"spdy/2">>], <<"http/1.1">>}}],
 			   [],
-			   {error, next_protocol_not_negotiated}).
+			   {error, protocol_not_negotiated}).
 
 %--------------------------------------------------------------------------------
 renegotiate_from_client_after_npn_handshake(Config) when is_list(Config) ->
@@ -311,8 +311,8 @@ run_npn_handshake(Config, ClientExtraOpts, ServerExtraOpts, ExpectedProtocol) ->
 
 assert_npn(Socket, Protocol) ->
     ct:log("Negotiated Protocol ~p, Expecting: ~p ~n",
-		       [ssl:negotiated_next_protocol(Socket), Protocol]),
-    Protocol = ssl:negotiated_next_protocol(Socket).
+		       [ssl:negotiated_protocol(Socket), Protocol]),
+    Protocol = ssl:negotiated_protocol(Socket).
 
 assert_npn_and_renegotiate_and_send_data(Socket, Protocol, Data) ->
     assert_npn(Socket, Protocol),
@@ -332,7 +332,7 @@ ssl_receive_and_assert_npn(Socket, Protocol, Data) ->
 
 ssl_send(Socket, Data) ->
     ct:log("Connection info: ~p~n",
-               [ssl:connection_info(Socket)]),
+               [ssl:connection_information(Socket)]),
     ssl:send(Socket, Data).
 
 ssl_receive(Socket, Data) ->
@@ -340,7 +340,7 @@ ssl_receive(Socket, Data) ->
 
 ssl_receive(Socket, Data, Buffer) ->
     ct:log("Connection info: ~p~n",
-               [ssl:connection_info(Socket)]),
+               [ssl:connection_information(Socket)]),
     receive
     {ssl, Socket, MoreData} ->
         ct:log("Received ~p~n",[MoreData]),
@@ -360,4 +360,4 @@ ssl_receive(Socket, Data, Buffer) ->
 
 
 connection_info_result(Socket) ->
-    ssl:connection_info(Socket).
+    ssl:connection_information(Socket).
diff --git a/lib/ssl/test/ssl_pem_cache_SUITE.erl b/lib/ssl/test/ssl_pem_cache_SUITE.erl
index 843079e2fe..23584dfcdf 100644
--- a/lib/ssl/test/ssl_pem_cache_SUITE.erl
+++ b/lib/ssl/test/ssl_pem_cache_SUITE.erl
@@ -113,9 +113,9 @@ get_pem_cache() ->
     {status, _, _, StatusInfo} = sys:get_status(whereis(ssl_manager)),
     [_, _,_, _, Prop] = StatusInfo,
     State = ssl_test_lib:state(Prop),
-    case element(5, State) of
-	[_CertDb, _FileRefDb, PemChace] ->
-	    PemChace;
+    case element(6, State) of
+	[_CertDb, _FileRefDb, PemCache| _] ->
+	    PemCache;
 	_ ->
 	    undefined
     end.
diff --git a/lib/ssl/test/ssl_session_cache_SUITE.erl b/lib/ssl/test/ssl_session_cache_SUITE.erl
index c31f6c2d7d..36d086338e 100644
--- a/lib/ssl/test/ssl_session_cache_SUITE.erl
+++ b/lib/ssl/test/ssl_session_cache_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2010-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -108,8 +108,12 @@ init_customized_session_cache(Type, Config0) ->
     ssl:stop(),
     application:load(ssl),
     application:set_env(ssl, session_cb, ?MODULE),
-    application:set_env(ssl, session_cb_init_args, [Type]),
+    application:set_env(ssl, session_cb_init_args, [{type, Type}]),
     ssl:start(),
+    catch (end_per_testcase(list_to_atom("session_cache_process" ++ atom_to_list(Type)),
+	   Config)),
+    ets:new(ssl_test, [named_table, public, set]),
+    ets:insert(ssl_test, {type, Type}),
     [{watchdog, Dog} | Config].
 
 end_per_testcase(session_cache_process_list, Config) ->
@@ -126,7 +130,11 @@ end_per_testcase(session_cleanup, Config) ->
     application:unset_env(ssl, session_delay_cleanup_time),
     application:unset_env(ssl, session_lifetime),
     end_per_testcase(default_action, Config);
-end_per_testcase(_TestCase, Config) ->
+end_per_testcase(Case, Config) when Case == session_cache_process_list;
+				    Case == session_cache_process_mnesia ->
+    ets:delete(ssl_test),
+    Config;
+end_per_testcase(_, Config) ->
     Config.
 
 %%--------------------------------------------------------------------
@@ -164,12 +172,13 @@ session_cleanup(Config)when is_list(Config) ->
     {status, _, _, StatusInfo} = sys:get_status(whereis(ssl_manager)),
     [_, _,_, _, Prop] = StatusInfo,
     State = ssl_test_lib:state(Prop),
-    Cache = element(2, State),
-    SessionTimer = element(6, State),
+    ClientCache = element(2, State),
+    ServerCache = element(3, State),
+    SessionTimer = element(7, State),
 
     Id = proplists:get_value(session_id, SessionInfo),
-    CSession = ssl_session_cache:lookup(Cache, {{Hostname, Port}, Id}),
-    SSession = ssl_session_cache:lookup(Cache, {Port, Id}),
+    CSession = ssl_session_cache:lookup(ClientCache, {{Hostname, Port}, Id}),
+    SSession = ssl_session_cache:lookup(ServerCache, {Port, Id}),
 
     true = CSession =/= undefined,
     true = SSession =/= undefined,
@@ -185,8 +194,8 @@ session_cleanup(Config)when is_list(Config) ->
 
     ct:sleep(?SLEEP),  %% Make sure clean has had time to run
 
-    undefined = ssl_session_cache:lookup(Cache, {{Hostname, Port}, Id}),
-    undefined = ssl_session_cache:lookup(Cache, {Port, Id}),
+    undefined = ssl_session_cache:lookup(ClientCache, {{Hostname, Port}, Id}),
+    undefined = ssl_session_cache:lookup(ServerCache, {Port, Id}),
 
     process_flag(trap_exit, false),
     ssl_test_lib:close(Server),
@@ -208,7 +217,7 @@ get_delay_timers() ->
     {status, _, _, StatusInfo} = sys:get_status(whereis(ssl_manager)),
     [_, _,_, _, Prop] = StatusInfo,
     State = ssl_test_lib:state(Prop),
-    case element(7, State) of
+    case element(8, State) of
 	{undefined, undefined} ->
 	    ct:sleep(?SLEEP),
 	    get_delay_timers();
@@ -236,16 +245,16 @@ session_cache_process_mnesia(Config) when is_list(Config) ->
 %%% Session cache API callbacks
 %%--------------------------------------------------------------------
 
-init([Type]) ->
-    ets:new(ssl_test, [named_table, public, set]),
-    ets:insert(ssl_test, {type, Type}),
-    case Type of
+init(Opts) ->
+    case proplists:get_value(type, Opts) of
 	list ->
 	    spawn(fun() -> session_loop([]) end);
 	mnesia ->
 	    mnesia:start(),
-	    {atomic,ok} = mnesia:create_table(sess_cache, []),
-	    sess_cache
+	    Name = atom_to_list(proplists:get_value(role, Opts)),
+	    TabName = list_to_atom(Name ++ "sess_cache"),
+	    {atomic,ok} = mnesia:create_table(TabName, []),
+	    TabName
     end.
 
 session_cb() ->
@@ -258,7 +267,7 @@ terminate(Cache) ->
 	    Cache ! terminate;
 	mnesia ->
 	    catch {atomic,ok} =
-		mnesia:delete_table(sess_cache)
+		mnesia:delete_table(Cache)
     end.
 
 lookup(Cache, Key) ->
@@ -268,10 +277,10 @@ lookup(Cache, Key) ->
 	    receive {Cache, Res} -> Res end;
 	mnesia ->
 	    case mnesia:transaction(fun() ->
-					    mnesia:read(sess_cache,
+					    mnesia:read(Cache,
 							Key, read)
 				    end) of
-		{atomic, [{sess_cache, Key, Value}]} ->
+		{atomic, [{Cache, Key, Value}]} ->
 		    Value;
 		_ ->
 		    undefined
@@ -285,8 +294,8 @@ update(Cache, Key, Value) ->
 	mnesia ->
 	    {atomic, ok} =
 		mnesia:transaction(fun() ->
-					   mnesia:write(sess_cache,
-							{sess_cache, Key, Value}, write)
+					   mnesia:write(Cache,
+							{Cache, Key, Value}, write)
 				   end)
     end.
 
@@ -297,7 +306,7 @@ delete(Cache, Key) ->
 	mnesia ->
 	    {atomic, ok} =
 		mnesia:transaction(fun() ->
-					   mnesia:delete(sess_cache, Key)
+					   mnesia:delete(Cache, Key)
 				   end)
     end.
 
@@ -308,7 +317,7 @@ foldl(Fun, Acc, Cache) ->
 	    receive {Cache, Res} -> Res end;
 	mnesia ->
 	    Foldl = fun() ->
-			    mnesia:foldl(Fun, Acc, sess_cache)
+			    mnesia:foldl(Fun, Acc, Cache)
 		    end,
 	    {atomic, Res} = mnesia:transaction(Foldl),
 	    Res
@@ -325,7 +334,7 @@ select_session(Cache, PartialKey) ->
 	mnesia ->
 	    Sel = fun() ->
 			  mnesia:select(Cache,
-					[{{sess_cache,{PartialKey,'$1'}, '$2'},
+					[{{Cache,{PartialKey,'$1'}, '$2'},
 					  [],['$$']}])
 		  end,
 	    {atomic, Res} = mnesia:transaction(Sel),
diff --git a/lib/ssl/test/ssl_sni_SUITE.erl b/lib/ssl/test/ssl_sni_SUITE.erl
new file mode 100644
index 0000000000..b059ff991b
--- /dev/null
+++ b/lib/ssl/test/ssl_sni_SUITE.erl
@@ -0,0 +1,179 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2015-2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+
+-module(ssl_sni_SUITE).
+
+-compile(export_all).
+
+-include_lib("common_test/include/ct.hrl").
+-include_lib("public_key/include/public_key.hrl").
+
+%%--------------------------------------------------------------------
+%% Common Test interface functions -----------------------------------
+%%--------------------------------------------------------------------
+suite() -> [{ct_hooks,[ts_install_cth]}].
+
+all() -> [no_sni_header, 
+	  sni_match, 
+	  sni_no_match,
+	  no_sni_header_fun, 
+	  sni_match_fun, 
+	  sni_no_match_fun].
+
+init_per_suite(Config0) ->
+    catch crypto:stop(),
+    try crypto:start() of
+        ok ->
+            ssl:start(),
+            Result =
+		(catch make_certs:all(?config(data_dir, Config0),
+				      ?config(priv_dir, Config0))),
+            ct:log("Make certs  ~p~n", [Result]),
+            ssl_test_lib:cert_options(Config0)
+    catch _:_  ->
+            {skip, "Crypto did not start"}
+    end.
+
+end_per_suite(_) ->
+    ssl:stop(),
+    application:stop(crypto).
+
+%%--------------------------------------------------------------------
+%% Test Cases --------------------------------------------------------
+%%--------------------------------------------------------------------
+no_sni_header(Config) ->
+    run_handshake(Config, undefined, undefined, "server").
+
+no_sni_header_fun(Config) ->
+    run_sni_fun_handshake(Config, undefined, undefined, "server").
+
+sni_match(Config) ->
+    run_handshake(Config, "a.server", "a.server", "a.server").
+
+sni_match_fun(Config) ->
+    run_sni_fun_handshake(Config, "a.server", "a.server", "a.server").
+
+sni_no_match(Config) ->
+    run_handshake(Config, "c.server", undefined, "server").
+
+sni_no_match_fun(Config) ->
+    run_sni_fun_handshake(Config, "c.server", undefined, "server").
+
+
+%%--------------------------------------------------------------------
+%% Internal Functions ------------------------------------------------
+%%--------------------------------------------------------------------
+ssl_recv(SSLSocket, Expect) ->
+    ssl_recv(SSLSocket, "", Expect).
+
+ssl_recv(SSLSocket, CurrentData, ExpectedData) ->
+    receive
+        {ssl, SSLSocket, Data} ->
+            NeweData = CurrentData ++ Data,
+            case NeweData of
+                ExpectedData ->
+                    ok;
+                _  ->
+                    ssl_recv(SSLSocket, NeweData, ExpectedData)
+            end;
+        Other ->
+            ct:fail({unexpected_message, Other})
+    after 4000 ->
+            ct:fail({timeout, CurrentData, ExpectedData})
+    end.
+
+send_and_hostname(SSLSocket) ->
+    ssl:send(SSLSocket, "OK"),
+    {ok, [{sni_hostname, Hostname}]} = ssl:connection_information(SSLSocket, [sni_hostname]),
+    Hostname.
+
+rdnPart([[#'AttributeTypeAndValue'{type=Type, value=Value} | _] | _], Type) -> 
+    Value;
+rdnPart([_ | Tail], Type) -> 
+    rdnPart(Tail, Type);
+rdnPart([], _) -> 
+    unknown.
+
+rdn_to_string({utf8String, Binary}) ->
+    erlang:binary_to_list(Binary);
+rdn_to_string({printableString, String}) ->
+    String.
+
+recv_and_certificate(SSLSocket) ->
+    ssl_recv(SSLSocket, "OK"),
+    {ok, PeerCert} = ssl:peercert(SSLSocket),
+    #'OTPCertificate'{tbsCertificate = #'OTPTBSCertificate'{subject = {rdnSequence, Subject}}} 
+	= public_key:pkix_decode_cert(PeerCert, otp),
+    ct:log("Subject of certificate received from server: ~p", [Subject]),
+    rdn_to_string(rdnPart(Subject, ?'id-at-commonName')).
+
+run_sni_fun_handshake(Config, SNIHostname, ExpectedSNIHostname, ExpectedCN) ->
+    ct:log("Start running handshake for sni_fun, Config: ~p, SNIHostname: ~p, "
+	   "ExpectedSNIHostname: ~p, ExpectedCN: ~p", 
+	   [Config, SNIHostname, ExpectedSNIHostname, ExpectedCN]),
+    [{sni_hosts, ServerSNIConf}] = ?config(sni_server_opts, Config),
+    SNIFun = fun(Domain) -> proplists:get_value(Domain, ServerSNIConf, undefined) end,
+    ServerOptions = ?config(server_opts, Config) ++ [{sni_fun, SNIFun}],
+    ClientOptions = 
+    case SNIHostname of
+        undefined ->
+            ?config(client_opts, Config);
+        _ ->
+            [{server_name_indication, SNIHostname}] ++ ?config(client_opts, Config)
+    end,
+    ct:log("Options: ~p", [[ServerOptions, ClientOptions]]),
+    {ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
+    Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0},
+                                        {from, self()}, {mfa, {?MODULE, send_and_hostname, []}},
+                                        {options, ServerOptions}]),
+    Port = ssl_test_lib:inet_port(Server),
+    Client = ssl_test_lib:start_client([{node, ClientNode}, {port, Port},
+                                        {host, Hostname}, {from, self()},
+                                        {mfa, {?MODULE, recv_and_certificate, []}},
+                                        {options, ClientOptions}]),
+    ssl_test_lib:check_result(Server, ExpectedSNIHostname, Client, ExpectedCN),
+    ssl_test_lib:close(Server),
+    ssl_test_lib:close(Client).
+
+run_handshake(Config, SNIHostname, ExpectedSNIHostname, ExpectedCN) ->
+    ct:log("Start running handshake, Config: ~p, SNIHostname: ~p, "
+	   "ExpectedSNIHostname: ~p, ExpectedCN: ~p", 
+	   [Config, SNIHostname, ExpectedSNIHostname, ExpectedCN]),
+    ServerOptions = ?config(sni_server_opts, Config) ++ ?config(server_opts, Config),
+    ClientOptions = 
+    case SNIHostname of
+        undefined ->
+            ?config(client_opts, Config);
+        _ ->
+            [{server_name_indication, SNIHostname}] ++ ?config(client_opts, Config)
+    end,
+    ct:log("Options: ~p", [[ServerOptions, ClientOptions]]),
+    {ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
+    Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0},
+                                        {from, self()}, {mfa, {?MODULE, send_and_hostname, []}},
+                                        {options, ServerOptions}]),
+    Port = ssl_test_lib:inet_port(Server),
+    Client = ssl_test_lib:start_client([{node, ClientNode}, {port, Port},
+                                        {host, Hostname}, {from, self()},
+                                        {mfa, {?MODULE, recv_and_certificate, []}},
+                                        {options, ClientOptions}]),
+    ssl_test_lib:check_result(Server, ExpectedSNIHostname, Client, ExpectedCN),
+    ssl_test_lib:close(Server),
+    ssl_test_lib:close(Client).
diff --git a/lib/ssl/test/ssl_test_lib.erl b/lib/ssl/test/ssl_test_lib.erl
index 74d71263de..a3bfdf8893 100644
--- a/lib/ssl/test/ssl_test_lib.erl
+++ b/lib/ssl/test/ssl_test_lib.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2008-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2008-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -187,6 +187,7 @@ run_client(Opts) ->
     Transport =  proplists:get_value(transport, Opts, ssl),
     Options = proplists:get_value(options, Opts),
     ct:log("~p:~p~n~p:connect(~p, ~p)@~p~n", [?MODULE,?LINE, Transport, Host, Port, Node]),
+    ct:log("SSLOpts: ~p", [Options]),
     case rpc:call(Node, Transport, connect, [Host, Port, Options]) of
 	{ok, Socket} ->
 	    Pid ! {connected, Socket},
@@ -253,7 +254,6 @@ check_result(Server, ServerMsg, Client, ClientMsg) ->
 	{Port, {data,Debug}} when is_port(Port) ->
 	    ct:log("~p:~p~nopenssl ~s~n",[?MODULE,?LINE, Debug]),
 	    check_result(Server, ServerMsg, Client, ClientMsg);
-
 	Unexpected ->
 	    Reason = {{expected, {Client, ClientMsg}},
 		      {expected, {Server, ServerMsg}}, {got, Unexpected}},
@@ -267,6 +267,9 @@ check_result(Pid, Msg) ->
 	{Port, {data,Debug}} when is_port(Port) ->
 	    ct:log("~p:~p~nopenssl ~s~n",[?MODULE,?LINE, Debug]),
 	    check_result(Pid,Msg);
+	%% {Port, {exit_status, Status}} when is_port(Port) ->
+	%%     ct:log("~p:~p Exit status: ~p~n",[?MODULE,?LINE, Status]),
+	%%    check_result(Pid, Msg);
 	Unexpected ->
 	    Reason = {{expected, {Pid, Msg}}, 
 		      {got, Unexpected}},
@@ -351,6 +354,11 @@ cert_options(Config) ->
     BadKeyFile = filename:join([?config(priv_dir, Config), 
 			      "badkey.pem"]),
     PskSharedSecret = <<1,2,3,4,5,6,7,8,9,10,11,12,13,14,15>>,
+
+    SNIServerACertFile = filename:join([?config(priv_dir, Config), "a.server", "cert.pem"]),
+    SNIServerAKeyFile = filename:join([?config(priv_dir, Config), "a.server", "key.pem"]),
+    SNIServerBCertFile = filename:join([?config(priv_dir, Config), "b.server", "cert.pem"]),
+    SNIServerBKeyFile = filename:join([?config(priv_dir, Config), "b.server", "key.pem"]),
     [{client_opts, [{ssl_imp, new},{reuseaddr, true}]}, 
      {client_verification_opts, [{cacertfile, ClientCaCertFile}, 
 				{certfile, ClientCertFile},  
@@ -411,7 +419,17 @@ cert_options(Config) ->
      {server_bad_cert, [{ssl_imp, new},{cacertfile, ServerCaCertFile},
 			{certfile, BadCertFile}, {keyfile, ServerKeyFile}]},
      {server_bad_key, [{ssl_imp, new},{cacertfile, ServerCaCertFile},
-		       {certfile, ServerCertFile}, {keyfile, BadKeyFile}]}
+		       {certfile, ServerCertFile}, {keyfile, BadKeyFile}]},
+     {sni_server_opts, [{sni_hosts, [
+                                     {"a.server", [
+                                                   {certfile, SNIServerACertFile},
+                                                   {keyfile, SNIServerAKeyFile}
+                                                  ]},
+                                     {"b.server", [
+                                                   {certfile, SNIServerBCertFile},
+                                                   {keyfile, SNIServerBKeyFile}
+                                                  ]}
+                                    ]}]}
      | Config].
 
 
@@ -811,48 +829,34 @@ openssl_rsa_suites(CounterPart) ->
 		false ->
 		    "DSS | ECDHE | ECDH"
 		end,
-    lists:filter(fun(Str) ->
-			 case re:run(Str, Names,[]) of
-			     nomatch ->
-				 false;
-			     _ ->
-				 true
-			 end 
-		     end, Ciphers).
+    lists:filter(fun(Str) -> string_regex_filter(Str, Names)
+		 end, Ciphers).
 
 openssl_dsa_suites() ->
     Ciphers = ssl:cipher_suites(openssl),
-    lists:filter(fun(Str) ->
-			 case re:run(Str,"DSS",[]) of
-			     nomatch ->
-				 false;
-			     _ ->
-				 true
-			 end 
+    lists:filter(fun(Str) -> string_regex_filter(Str, "DSS")
 		 end, Ciphers).
 
 openssl_ecdsa_suites() ->
     Ciphers = ssl:cipher_suites(openssl),
-    lists:filter(fun(Str) ->
-			 case re:run(Str,"ECDHE-ECDSA",[]) of
-			     nomatch ->
-				 false;
-			     _ ->
-				 true
-			 end
+    lists:filter(fun(Str) -> string_regex_filter(Str, "ECDHE-ECDSA")
 		 end, Ciphers).
 
 openssl_ecdh_rsa_suites() ->
     Ciphers = ssl:cipher_suites(openssl),
-    lists:filter(fun(Str) ->
-			 case re:run(Str,"ECDH-RSA",[]) of
-			     nomatch ->
-				 false;
-			     _ ->
-				 true
-			 end
+    lists:filter(fun(Str) -> string_regex_filter(Str, "ECDH-RSA")
 		 end, Ciphers).
 
+string_regex_filter(Str, Search) when is_list(Str) ->
+    case re:run(Str, Search, []) of
+	nomatch ->
+	    false;
+	_ ->
+	    true
+    end;
+string_regex_filter(_Str, _Search) ->
+    false.
+
 anonymous_suites() ->
     Suites =
 	[{dh_anon, rc4_128, md5},
@@ -860,6 +864,8 @@ anonymous_suites() ->
 	 {dh_anon, '3des_ede_cbc', sha},
 	 {dh_anon, aes_128_cbc, sha},
 	 {dh_anon, aes_256_cbc, sha},
+	 {dh_anon, aes_128_gcm, null},
+	 {dh_anon, aes_256_gcm, null},
 	 {ecdh_anon,rc4_128,sha},
 	 {ecdh_anon,'3des_ede_cbc',sha},
 	 {ecdh_anon,aes_128_cbc,sha},
@@ -885,8 +891,13 @@ psk_suites() ->
 	 {rsa_psk, aes_128_cbc, sha},
 	 {rsa_psk, aes_256_cbc, sha},
 	 {rsa_psk, aes_128_cbc, sha256},
-	 {rsa_psk, aes_256_cbc, sha384}
-],
+	 {rsa_psk, aes_256_cbc, sha384},
+	 {psk, aes_128_gcm, null},
+	 {psk, aes_256_gcm, null},
+	 {dhe_psk, aes_128_gcm, null},
+	 {dhe_psk, aes_256_gcm, null},
+	 {rsa_psk, aes_128_gcm, null},
+	 {rsa_psk, aes_256_gcm, null}],
     ssl_cipher:filter_suites(Suites).
 
 psk_anon_suites() ->
@@ -925,6 +936,10 @@ srp_dss_suites() ->
 	 {srp_dss, aes_256_cbc, sha}],
     ssl_cipher:filter_suites(Suites).
 
+rc4_suites(Version) ->
+    Suites = ssl_cipher:rc4_suites(Version),
+    ssl_cipher:filter_suites(Suites).
+
 pem_to_der(File) ->
     {ok, PemBin} = file:read_file(File),
     public_key:pem_decode(PemBin).
@@ -934,7 +949,8 @@ der_to_pem(File, Entries) ->
     file:write_file(File, PemBin).
 
 cipher_result(Socket, Result) ->
-    Result = ssl:connection_info(Socket),
+    {ok, Info} = ssl:connection_information(Socket),
+    Result = {ok, {proplists:get_value(protocol, Info), proplists:get_value(cipher_suite, Info)}},
     ct:log("~p:~p~nSuccessfull connect: ~p~n", [?MODULE,?LINE, Result]),
     %% Importante to send two packets here
     %% to properly test "cipher state" handling
@@ -1090,6 +1106,8 @@ cipher_restriction(Config0) ->
 
 check_sane_openssl_version(Version) ->
     case {Version, os:cmd("openssl version")} of
+	{_, "OpenSSL 1.0.2" ++ _} ->
+	    true;
 	{_, "OpenSSL 1.0.1" ++ _} ->
 	    true;
 	{'tlsv1.2', "OpenSSL 1.0" ++ _} ->
@@ -1130,9 +1148,10 @@ version_flag(sslv3) ->
 filter_suites(Ciphers0) ->
     Version = tls_record:highest_protocol_version([]),
     Supported0 = ssl_cipher:suites(Version)
-	++ ssl_cipher:anonymous_suites()
+	++ ssl_cipher:anonymous_suites(Version)
 	++ ssl_cipher:psk_suites(Version)
-	++ ssl_cipher:srp_suites(),
+	++ ssl_cipher:srp_suites() 
+	++ ssl_cipher:rc4_suites(Version),
     Supported1 = ssl_cipher:filter_suites(Supported0),
     Supported2 = [ssl:suite_definition(S) || S <- Supported1],
     [Cipher || Cipher <- Ciphers0, lists:member(Cipher, Supported2)].
diff --git a/lib/ssl/test/ssl_to_openssl_SUITE.erl b/lib/ssl/test/ssl_to_openssl_SUITE.erl
index 942c446ec4..21ce4c4a29 100644
--- a/lib/ssl/test/ssl_to_openssl_SUITE.erl
+++ b/lib/ssl/test/ssl_to_openssl_SUITE.erl
@@ -50,9 +50,9 @@ all() ->
 
 groups() ->
     [{basic, [], basic_tests()},
-     {'tlsv1.2', [], all_versions_tests() ++ npn_tests()},
-     {'tlsv1.1', [], all_versions_tests() ++ npn_tests()},
-     {'tlsv1', [], all_versions_tests()++ npn_tests()},
+     {'tlsv1.2', [], all_versions_tests() ++ alpn_tests() ++ npn_tests() ++ sni_server_tests()},
+     {'tlsv1.1', [], all_versions_tests() ++ alpn_tests() ++ npn_tests() ++ sni_server_tests()},
+     {'tlsv1', [], all_versions_tests()++ alpn_tests() ++ npn_tests() ++ sni_server_tests()},
      {'sslv3', [], all_versions_tests()}].
 
 basic_tests() ->
@@ -79,6 +79,18 @@ all_versions_tests() ->
      expired_session,
      ssl2_erlang_server_openssl_client].
 
+alpn_tests() ->
+    [erlang_client_alpn_openssl_server_alpn,
+     erlang_server_alpn_openssl_client_alpn,
+     erlang_client_alpn_openssl_server,
+     erlang_client_openssl_server_alpn,
+     erlang_server_alpn_openssl_client,
+     erlang_server_openssl_client_alpn,
+     erlang_client_alpn_openssl_server_alpn_renegotiate,
+     erlang_server_alpn_openssl_client_alpn_renegotiate,
+     erlang_client_alpn_npn_openssl_server_alpn_npn,
+     erlang_server_alpn_npn_openssl_client_alpn_npn].
+
 npn_tests() ->
     [erlang_client_openssl_server_npn,
      erlang_server_openssl_client_npn,
@@ -89,6 +101,14 @@ npn_tests() ->
      erlang_client_openssl_server_npn_only_client,
      erlang_client_openssl_server_npn_only_server].
 
+sni_server_tests() ->
+    [erlang_server_openssl_client_sni_match,
+     erlang_server_openssl_client_sni_match_fun,
+     erlang_server_openssl_client_sni_no_match,
+     erlang_server_openssl_client_sni_no_match_fun,
+     erlang_server_openssl_client_sni_no_header,
+     erlang_server_openssl_client_sni_no_header_fun].
+
 
 init_per_suite(Config0) ->
     Dog = ct:timetrap(?LONG_TIMEOUT *2),
@@ -161,6 +181,36 @@ special_init(ssl2_erlang_server_openssl_client, Config) ->
     check_sane_openssl_sslv2(Config);
 
 special_init(TestCase, Config)
+    when TestCase == erlang_client_alpn_openssl_server_alpn;
+         TestCase == erlang_server_alpn_openssl_client_alpn;
+         TestCase == erlang_client_alpn_openssl_server;
+         TestCase == erlang_client_openssl_server_alpn;
+         TestCase == erlang_server_alpn_openssl_client;
+         TestCase == erlang_server_openssl_client_alpn ->
+    check_openssl_alpn_support(Config);
+
+special_init(TestCase, Config)
+    when TestCase == erlang_client_alpn_openssl_server_alpn_renegotiate;
+         TestCase == erlang_server_alpn_openssl_client_alpn_renegotiate ->
+    {ok, Version} = application:get_env(ssl, protocol_version),
+    case check_sane_openssl_renegotaite(Config, Version) of
+	{skip, _} = Skip ->
+	    Skip;
+	_ ->
+	    check_openssl_alpn_support(Config)
+    end;
+
+special_init(TestCase, Config)
+    when TestCase == erlang_client_alpn_npn_openssl_server_alpn_npn;
+         TestCase == erlang_server_alpn_npn_openssl_client_alpn_npn ->
+    case check_openssl_alpn_support(Config) of
+        {skip, _} = Skip ->
+            Skip;
+        _ ->
+            check_openssl_npn_support(Config)
+    end;
+
+special_init(TestCase, Config)
     when TestCase == erlang_client_openssl_server_npn;
          TestCase == erlang_server_openssl_client_npn;        
          TestCase == erlang_server_openssl_client_npn_only_server;
@@ -179,6 +229,16 @@ special_init(TestCase, Config)
 	_ -> 
 	    check_openssl_npn_support(Config)
     end;
+
+special_init(TestCase, Config)
+  when TestCase == erlang_server_openssl_client_sni_match;
+       TestCase == erlang_server_openssl_client_sni_no_match;
+       TestCase == erlang_server_openssl_client_sni_no_header;
+       TestCase == erlang_server_openssl_client_sni_match_fun;
+       TestCase == erlang_server_openssl_client_sni_no_match_fun;
+       TestCase == erlang_server_openssl_client_sni_no_header_fun ->
+    check_openssl_sni_support(Config);
+
 special_init(_, Config) ->
     Config.
 
@@ -924,6 +984,128 @@ ssl2_erlang_server_openssl_client(Config) when is_list(Config) ->
     process_flag(trap_exit, false).
 
 %%--------------------------------------------------------------------
+
+erlang_client_alpn_openssl_server_alpn(Config) when is_list(Config) ->
+    Data = "From openssl to erlang",
+    start_erlang_client_and_openssl_server_for_alpn_negotiation(Config, Data, fun(Client, OpensslPort) ->
+        true = port_command(OpensslPort, Data),
+
+        ssl_test_lib:check_result(Client, ok)
+    end),
+    ok.
+
+%%--------------------------------------------------------------------
+
+erlang_server_alpn_openssl_client_alpn(Config) when is_list(Config) ->
+    Data = "From openssl to erlang",
+    start_erlang_server_and_openssl_client_for_alpn_negotiation(Config, Data, fun(Client, OpensslPort) ->
+        true = port_command(OpensslPort, Data),
+
+        ssl_test_lib:check_result(Client, ok)
+    end),
+    ok.
+
+%%--------------------------------------------------------------------------
+
+erlang_client_alpn_openssl_server(Config) when is_list(Config) ->
+    Data = "From openssl to erlang",
+    start_erlang_client_and_openssl_server_with_opts(Config,
+						     [{alpn_advertised_protocols, [<<"spdy/2">>]}],
+                                                     "",
+						     Data, fun(Server, OpensslPort) ->
+        true = port_command(OpensslPort, Data),
+        ssl_test_lib:check_result(Server, ok)
+    end),
+    ok.
+
+%%--------------------------------------------------------------------------
+
+erlang_client_openssl_server_alpn(Config) when is_list(Config) ->
+    Data = "From openssl to erlang",
+    start_erlang_client_and_openssl_server_with_opts(Config,
+						     [],
+                                                     "-alpn spdy/2",
+						     Data, fun(Server, OpensslPort) ->
+        true = port_command(OpensslPort, Data),
+        ssl_test_lib:check_result(Server, ok)
+    end),
+    ok.
+
+%%--------------------------------------------------------------------------
+
+erlang_server_alpn_openssl_client(Config) when is_list(Config) ->
+    Data = "From openssl to erlang",
+    start_erlang_server_and_openssl_client_with_opts(Config,
+						     [{alpn_preferred_protocols, [<<"spdy/2">>]}],
+                                                     "",
+						     Data, fun(Server, OpensslPort) ->
+        true = port_command(OpensslPort, Data),
+        ssl_test_lib:check_result(Server, ok)
+    end),
+    ok.
+
+%%--------------------------------------------------------------------------
+
+erlang_server_openssl_client_alpn(Config) when is_list(Config) ->
+    Data = "From openssl to erlang",
+    start_erlang_server_and_openssl_client_with_opts(Config,
+						     [],
+                                                     "-alpn spdy/2",
+						     Data, fun(Server, OpensslPort) ->
+        true = port_command(OpensslPort, Data),
+        ssl_test_lib:check_result(Server, ok)
+    end),
+    ok.
+
+%%--------------------------------------------------------------------
+
+erlang_client_alpn_openssl_server_alpn_renegotiate(Config) when is_list(Config) ->
+    Data = "From openssl to erlang",
+    start_erlang_client_and_openssl_server_for_alpn_negotiation(Config, Data, fun(Client, OpensslPort) ->
+        true = port_command(OpensslPort, ?OPENSSL_RENEGOTIATE),
+        ct:sleep(?SLEEP),
+        true = port_command(OpensslPort, Data),
+
+        ssl_test_lib:check_result(Client, ok)
+    end),
+    ok.
+
+%%--------------------------------------------------------------------
+
+erlang_server_alpn_openssl_client_alpn_renegotiate(Config) when is_list(Config) ->
+    Data = "From openssl to erlang",
+    start_erlang_server_and_openssl_client_for_alpn_negotiation(Config, Data, fun(Client, OpensslPort) ->
+        true = port_command(OpensslPort, ?OPENSSL_RENEGOTIATE),
+        ct:sleep(?SLEEP),
+        true = port_command(OpensslPort, Data),
+
+        ssl_test_lib:check_result(Client, ok)
+    end),
+    ok.
+
+%%--------------------------------------------------------------------
+
+erlang_client_alpn_npn_openssl_server_alpn_npn(Config) when is_list(Config) ->
+    Data = "From openssl to erlang",
+    start_erlang_client_and_openssl_server_for_alpn_npn_negotiation(Config, Data, fun(Client, OpensslPort) ->
+        true = port_command(OpensslPort, Data),
+
+        ssl_test_lib:check_result(Client, ok)
+    end),
+    ok.
+
+%%--------------------------------------------------------------------
+
+erlang_server_alpn_npn_openssl_client_alpn_npn(Config) when is_list(Config) ->
+    Data = "From openssl to erlang",
+    start_erlang_server_and_openssl_client_for_alpn_npn_negotiation(Config, Data, fun(Client, OpensslPort) ->
+        true = port_command(OpensslPort, Data),
+
+        ssl_test_lib:check_result(Client, ok)
+    end),
+    ok.
+
+%%--------------------------------------------------------------------
 erlang_client_openssl_server_npn() ->
     [{doc,"Test erlang client with openssl server doing npn negotiation"}].
 
@@ -1016,6 +1198,25 @@ erlang_server_openssl_client_npn_only_client(Config) when is_list(Config) ->
         ssl_test_lib:check_result(Server, ok)
     end),
     ok.
+%--------------------------------------------------------------------------
+erlang_server_openssl_client_sni_no_header(Config) when is_list(Config) ->
+    erlang_server_openssl_client_sni_test(Config, undefined, undefined, "server").
+
+erlang_server_openssl_client_sni_no_header_fun(Config) when is_list(Config) ->
+    erlang_server_openssl_client_sni_test_sni_fun(Config, undefined, undefined, "server").
+
+erlang_server_openssl_client_sni_match(Config) when is_list(Config) ->
+    erlang_server_openssl_client_sni_test(Config, "a.server", "a.server", "a.server").
+
+erlang_server_openssl_client_sni_match_fun(Config) when is_list(Config) ->
+    erlang_server_openssl_client_sni_test_sni_fun(Config, "a.server", "a.server", "a.server").
+
+erlang_server_openssl_client_sni_no_match(Config) when is_list(Config) ->
+    erlang_server_openssl_client_sni_test(Config, "c.server", undefined, "server").
+
+erlang_server_openssl_client_sni_no_match_fun(Config) when is_list(Config) ->
+    erlang_server_openssl_client_sni_test_sni_fun(Config, "c.server", undefined, "server").
+
 
 %%--------------------------------------------------------------------
 %% Internal functions ------------------------------------------------
@@ -1042,6 +1243,94 @@ run_suites(Ciphers, Version, Config, Type) ->
 	    ct:fail(cipher_suite_failed_see_test_case_log)
     end.
 
+client_read_check([], _Data) -> 
+    ok;
+client_read_check([Hd | T], Data) ->
+    case binary:match(Data, list_to_binary(Hd)) of
+        nomatch ->
+            nomatch;
+        _ ->
+            client_read_check(T, Data)
+    end.
+client_check_result(Port, DataExpected, DataReceived) ->
+    receive
+        {Port, {data, TheData}} ->
+            Data = list_to_binary(TheData),
+            NewData = <<DataReceived/binary, Data/binary>>,
+            ct:log("New Data: ~p", [NewData]),
+            case client_read_check(DataExpected, NewData) of
+                ok ->
+                    ok;
+                _ ->
+                    client_check_result(Port, DataExpected, NewData)
+            end
+    after 3000 ->
+	    ct:fail({"Time out on opensssl Client", {expected, DataExpected},
+		     {got, DataReceived}})   
+    end.
+client_check_result(Port, DataExpected) ->
+    client_check_result(Port, DataExpected, <<"">>).
+
+send_and_hostname(SSLSocket) ->
+    ssl:send(SSLSocket, "OK"),
+    {ok, [{sni_hostname, Hostname}]} = ssl:connection_information(SSLSocket, [sni_hostname]),
+    Hostname.
+
+erlang_server_openssl_client_sni_test(Config, SNIHostname, ExpectedSNIHostname, ExpectedCN) ->
+    ct:log("Start running handshake, Config: ~p, SNIHostname: ~p, ExpectedSNIHostname: ~p, ExpectedCN: ~p", [Config, SNIHostname, ExpectedSNIHostname, ExpectedCN]),
+    ServerOptions = ?config(sni_server_opts, Config) ++ ?config(server_opts, Config),
+    {_, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
+    Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0},
+                                        {from, self()}, {mfa, {?MODULE, send_and_hostname, []}},
+                                        {options, ServerOptions}]),
+    Port = ssl_test_lib:inet_port(Server),
+    ClientCommand = case SNIHostname of
+                        undefined ->
+                            "openssl s_client -connect " ++ Hostname ++ ":" ++ integer_to_list(Port);
+                        _ ->
+                            "openssl s_client -connect " ++ Hostname ++ ":" ++ integer_to_list(Port) ++ " -servername " ++ SNIHostname
+                    end,
+    ct:log("Options: ~p", [[ServerOptions, ClientCommand]]),
+    ClientPort = open_port({spawn, ClientCommand}, [stderr_to_stdout]),
+
+    %% Client check needs to be done befor server check,
+    %% or server check might consume client messages
+    ExpectedClientOutput = ["OK", "/CN=" ++ ExpectedCN ++ "/"],
+    client_check_result(ClientPort, ExpectedClientOutput),
+    ssl_test_lib:check_result(Server, ExpectedSNIHostname),
+    ssl_test_lib:close_port(ClientPort),
+    ssl_test_lib:close(Server),
+    ok.
+
+
+erlang_server_openssl_client_sni_test_sni_fun(Config, SNIHostname, ExpectedSNIHostname, ExpectedCN) ->
+    ct:log("Start running handshake for sni_fun, Config: ~p, SNIHostname: ~p, ExpectedSNIHostname: ~p, ExpectedCN: ~p", [Config, SNIHostname, ExpectedSNIHostname, ExpectedCN]),
+    [{sni_hosts, ServerSNIConf}] = ?config(sni_server_opts, Config),
+    SNIFun = fun(Domain) -> proplists:get_value(Domain, ServerSNIConf, undefined) end,
+    ServerOptions = ?config(server_opts, Config) ++ [{sni_fun, SNIFun}],
+    {_, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
+    Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0},
+                                        {from, self()}, {mfa, {?MODULE, send_and_hostname, []}},
+                                        {options, ServerOptions}]),
+    Port = ssl_test_lib:inet_port(Server),
+    ClientCommand = case SNIHostname of
+                        undefined ->
+                            "openssl s_client -connect " ++ Hostname ++ ":" ++ integer_to_list(Port);
+                        _ ->
+                            "openssl s_client -connect " ++ Hostname ++ ":" ++ integer_to_list(Port) ++ " -servername " ++ SNIHostname
+                    end,
+    ct:log("Options: ~p", [[ServerOptions, ClientCommand]]),
+    ClientPort = open_port({spawn, ClientCommand}, [stderr_to_stdout]),
+     
+    %% Client check needs to be done befor server check,
+    %% or server check might consume client messages
+    ExpectedClientOutput = ["OK", "/CN=" ++ ExpectedCN ++ "/"],
+    client_check_result(ClientPort, ExpectedClientOutput),
+    ssl_test_lib:check_result(Server, ExpectedSNIHostname),
+    ssl_test_lib:close_port(ClientPort),
+    ssl_test_lib:close(Server).
+
+
 cipher(CipherSuite, Version, Config, ClientOpts, ServerOpts) ->
     process_flag(trap_exit, true),
     ct:log("Testing CipherSuite ~p~n", [CipherSuite]),
@@ -1139,6 +1428,142 @@ start_erlang_client_and_openssl_server_with_opts(Config, ErlangClientOpts, Opens
     ssl_test_lib:close(Client),
     process_flag(trap_exit, false).
 
+start_erlang_client_and_openssl_server_for_alpn_negotiation(Config, Data, Callback) ->
+    process_flag(trap_exit, true),
+    ServerOpts = ?config(server_opts, Config),
+    ClientOpts0 = ?config(client_opts, Config),
+    ClientOpts = [{alpn_advertised_protocols, [<<"spdy/2">>]} | ClientOpts0],
+
+    {ClientNode, _, Hostname} = ssl_test_lib:run_where(Config),
+
+    Data = "From openssl to erlang",
+
+    Port = ssl_test_lib:inet_port(node()),
+    CertFile = proplists:get_value(certfile, ServerOpts),
+    KeyFile = proplists:get_value(keyfile, ServerOpts),
+    Version = tls_record:protocol_version(tls_record:highest_protocol_version([])),
+
+    Cmd = "openssl s_server -msg -alpn http/1.1,spdy/2  -accept " ++ integer_to_list(Port)  ++  ssl_test_lib:version_flag(Version) ++
+    " -cert " ++ CertFile  ++ " -key " ++ KeyFile,
+
+    ct:log("openssl cmd: ~p~n", [Cmd]),
+
+    OpensslPort =  open_port({spawn, Cmd}, [stderr_to_stdout]),
+
+    ssl_test_lib:wait_for_openssl_server(),
+
+    Client = ssl_test_lib:start_client([{node, ClientNode}, {port, Port},
+                    {host, Hostname},
+                    {from, self()},
+                    {mfa, {?MODULE,
+                           erlang_ssl_receive_and_assert_negotiated_protocol, [<<"spdy/2">>, Data]}},
+                    {options, ClientOpts}]),
+
+    Callback(Client, OpensslPort),
+
+    %% Clean close down!   Server needs to be closed first !!
+    ssl_test_lib:close_port(OpensslPort),
+
+    ssl_test_lib:close(Client),
+    process_flag(trap_exit, false).
+
+start_erlang_server_and_openssl_client_for_alpn_negotiation(Config, Data, Callback) ->
+    process_flag(trap_exit, true),
+    ServerOpts0 = ?config(server_opts, Config),
+    ServerOpts = [{alpn_preferred_protocols, [<<"spdy/2">>]} | ServerOpts0],
+
+    {_, ServerNode, _} = ssl_test_lib:run_where(Config),
+
+
+    Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0},
+                    {from, self()},
+                    {mfa, {?MODULE, erlang_ssl_receive_and_assert_negotiated_protocol, [<<"spdy/2">>, Data]}},
+                    {options, ServerOpts}]),
+    Port = ssl_test_lib:inet_port(Server),
+    Version = tls_record:protocol_version(tls_record:highest_protocol_version([])),
+    Cmd = "openssl s_client -alpn http/1.0,spdy/2 -msg -port " ++ integer_to_list(Port)  ++ ssl_test_lib:version_flag(Version) ++
+    " -host localhost",
+
+    ct:log("openssl cmd: ~p~n", [Cmd]),
+
+    OpenSslPort =  open_port({spawn, Cmd}, [stderr_to_stdout]),
+
+    Callback(Server, OpenSslPort),
+
+    ssl_test_lib:close(Server),
+
+    ssl_test_lib:close_port(OpenSslPort),
+    process_flag(trap_exit, false).
+
+start_erlang_client_and_openssl_server_for_alpn_npn_negotiation(Config, Data, Callback) ->
+    process_flag(trap_exit, true),
+    ServerOpts = ?config(server_opts, Config),
+    ClientOpts0 = ?config(client_opts, Config),
+    ClientOpts = [{alpn_advertised_protocols, [<<"spdy/2">>]},
+        {client_preferred_next_protocols, {client, [<<"spdy/3">>, <<"http/1.1">>]}} | ClientOpts0],
+
+    {ClientNode, _, Hostname} = ssl_test_lib:run_where(Config),
+
+    Data = "From openssl to erlang",
+
+    Port = ssl_test_lib:inet_port(node()),
+    CertFile = proplists:get_value(certfile, ServerOpts),
+    KeyFile = proplists:get_value(keyfile, ServerOpts),
+    Version = tls_record:protocol_version(tls_record:highest_protocol_version([])),
+
+    Cmd = "openssl s_server -msg -alpn http/1.1,spdy/2 -nextprotoneg spdy/3 -accept " ++ integer_to_list(Port)  ++  ssl_test_lib:version_flag(Version) ++
+    " -cert " ++ CertFile  ++ " -key " ++ KeyFile,
+
+    ct:log("openssl cmd: ~p~n", [Cmd]),
+
+    OpensslPort =  open_port({spawn, Cmd}, [stderr_to_stdout]),
+
+    ssl_test_lib:wait_for_openssl_server(),
+
+    Client = ssl_test_lib:start_client([{node, ClientNode}, {port, Port},
+                    {host, Hostname},
+                    {from, self()},
+                    {mfa, {?MODULE,
+                           erlang_ssl_receive_and_assert_negotiated_protocol, [<<"spdy/2">>, Data]}},
+                    {options, ClientOpts}]),
+
+    Callback(Client, OpensslPort),
+
+    %% Clean close down!   Server needs to be closed first !!
+    ssl_test_lib:close_port(OpensslPort),
+
+    ssl_test_lib:close(Client),
+    process_flag(trap_exit, false).
+
+start_erlang_server_and_openssl_client_for_alpn_npn_negotiation(Config, Data, Callback) ->
+    process_flag(trap_exit, true),
+    ServerOpts0 = ?config(server_opts, Config),
+    ServerOpts = [{alpn_preferred_protocols, [<<"spdy/2">>]},
+        {next_protocols_advertised, [<<"spdy/3">>, <<"http/1.1">>]} | ServerOpts0],
+
+    {_, ServerNode, _} = ssl_test_lib:run_where(Config),
+
+
+    Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0},
+                    {from, self()},
+                    {mfa, {?MODULE, erlang_ssl_receive_and_assert_negotiated_protocol, [<<"spdy/2">>, Data]}},
+                    {options, ServerOpts}]),
+    Port = ssl_test_lib:inet_port(Server),
+    Version = tls_record:protocol_version(tls_record:highest_protocol_version([])),
+    Cmd = "openssl s_client -alpn http/1.1,spdy/2 -nextprotoneg spdy/3 -msg -port " ++ integer_to_list(Port)  ++ ssl_test_lib:version_flag(Version) ++
+    " -host localhost",
+
+    ct:log("openssl cmd: ~p~n", [Cmd]),
+
+    OpenSslPort =  open_port({spawn, Cmd}, [stderr_to_stdout]),
+
+    Callback(Server, OpenSslPort),
+
+    ssl_test_lib:close(Server),
+
+    ssl_test_lib:close_port(OpenSslPort),
+    process_flag(trap_exit, false).
+
 start_erlang_client_and_openssl_server_for_npn_negotiation(Config, Data, Callback) ->
     process_flag(trap_exit, true),
     ServerOpts = ?config(server_opts, Config),
@@ -1167,7 +1592,7 @@ start_erlang_client_and_openssl_server_for_npn_negotiation(Config, Data, Callbac
                     {host, Hostname},
                     {from, self()},
                     {mfa, {?MODULE,
-                           erlang_ssl_receive_and_assert_npn, [<<"spdy/2">>, Data]}},
+                           erlang_ssl_receive_and_assert_negotiated_protocol, [<<"spdy/2">>, Data]}},
                     {options, ClientOpts}]),
 
     Callback(Client, OpensslPort),
@@ -1188,7 +1613,7 @@ start_erlang_server_and_openssl_client_for_npn_negotiation(Config, Data, Callbac
 
     Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0},
                     {from, self()},
-                    {mfa, {?MODULE, erlang_ssl_receive_and_assert_npn, [<<"spdy/2">>, Data]}},
+                    {mfa, {?MODULE, erlang_ssl_receive_and_assert_negotiated_protocol, [<<"spdy/2">>, Data]}},
                     {options, ServerOpts}]),
     Port = ssl_test_lib:inet_port(Server),
     Version = tls_record:protocol_version(tls_record:highest_protocol_version([])),
@@ -1236,15 +1661,15 @@ start_erlang_server_and_openssl_client_with_opts(Config, ErlangServerOpts, OpenS
     process_flag(trap_exit, false).
 
 
-erlang_ssl_receive_and_assert_npn(Socket, Protocol, Data) ->
-    {ok, Protocol} = ssl:negotiated_next_protocol(Socket),
+erlang_ssl_receive_and_assert_negotiated_protocol(Socket, Protocol, Data) ->
+    {ok, Protocol} = ssl:negotiated_protocol(Socket),
     erlang_ssl_receive(Socket, Data),
-    {ok, Protocol} = ssl:negotiated_next_protocol(Socket),
+    {ok, Protocol} = ssl:negotiated_protocol(Socket),
     ok.
 
 erlang_ssl_receive(Socket, Data) ->
     ct:log("Connection info: ~p~n",
-		       [ssl:connection_info(Socket)]),
+		       [ssl:connection_information(Socket)]),
     receive
 	{ssl, Socket, Data} ->
 	    io:format("Received ~p~n",[Data]),
@@ -1263,16 +1688,16 @@ erlang_ssl_receive(Socket, Data) ->
     end.
  
 connection_info(Socket, Version) ->
-    case ssl:connection_info(Socket) of
-	{ok, {Version, _} = Info} ->
+    case ssl:connection_information(Socket, [version]) of
+	{ok, [{version, Version}] = Info} ->
 	    ct:log("Connection info: ~p~n", [Info]),
 	    ok;
-	{ok, {OtherVersion, _}} ->
+	{ok,  [{version, OtherVersion}]} ->
 	    {wrong_version, OtherVersion}
     end.
 
 connection_info_result(Socket) ->                                            
-    ssl:connection_info(Socket).
+    ssl:connection_information(Socket).
 
 
 delayed_send(Socket, [ErlData, OpenSslData]) ->
@@ -1287,6 +1712,14 @@ server_sent_garbage(Socket) ->
 	    
     end.
     
+check_openssl_sni_support(Config) ->
+    HelpText = os:cmd("openssl s_client --help"),
+    case string:str(HelpText, "-servername") of
+        0 ->
+            {skip, "Current openssl doesn't support SNI"};
+        _ ->
+            Config
+    end.
 
 check_openssl_npn_support(Config) ->
     HelpText = os:cmd("openssl s_client --help"),
@@ -1297,6 +1730,15 @@ check_openssl_npn_support(Config) ->
             Config
     end.
 
+check_openssl_alpn_support(Config) ->
+    HelpText = os:cmd("openssl s_client --help"),
+    case string:str(HelpText, "alpn") of
+        0 ->
+            {skip, "Openssl not compiled with alpn support"};
+        _ ->
+            Config
+    end.
+
 check_sane_openssl_renegotaite(Config, Version) when Version == 'tlsv1.1';
 						     Version == 'tlsv1.2' ->
     case os:cmd("openssl version") of     
diff --git a/lib/ssl/test/ssl_upgrade_SUITE.erl b/lib/ssl/test/ssl_upgrade_SUITE.erl
new file mode 100644
index 0000000000..c83fb367dc
--- /dev/null
+++ b/lib/ssl/test/ssl_upgrade_SUITE.erl
@@ -0,0 +1,164 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2014-2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.2
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+-module(ssl_upgrade_SUITE).
+
+%% Note: This directive should only be used in test suites.
+-compile(export_all).
+
+-include_lib("common_test/include/ct.hrl").
+
+-record(state, {
+	  config,
+	  server,
+	  client,
+	  soft
+	 }).
+
+all() -> 
+    [
+     minor_upgrade,
+     major_upgrade
+    ].
+
+init_per_suite(Config0) ->
+    catch crypto:stop(),
+    try {crypto:start(), erlang:system_info({wordsize, internal}) == erlang:system_info({wordsize, external})} of
+	{ok, true} ->
+	    case ct_release_test:init(Config0) of
+		{skip, Reason} ->
+		    {skip, Reason};
+		Config ->
+		    Result =
+			(catch make_certs:all(?config(data_dir, Config),
+					      ?config(priv_dir, Config))),
+		    ct:log("Make certs  ~p~n", [Result]),
+		    ssl_test_lib:cert_options(Config)
+	    end;
+	{ok, false} ->
+	    {skip, "Test server will not handle halfwordemulator correctly. Skip as halfwordemulator is deprecated"} 
+    catch _:_ ->
+	    {skip, "Crypto did not start"}
+    end.
+
+end_per_suite(Config) ->
+    ct_release_test:cleanup(Config),
+    crypto:stop().
+
+init_per_testcase(_TestCase, Config) ->
+    Config.
+end_per_testcase(_TestCase, Config) ->
+    Config.
+
+major_upgrade(Config) when is_list(Config) ->
+    ct_release_test:upgrade(ssl, major,{?MODULE, #state{config = Config}}, Config).
+
+minor_upgrade(Config) when is_list(Config) ->
+    ct_release_test:upgrade(ssl, minor,{?MODULE, #state{config = Config}}, Config).
+
+upgrade_init(CTData, #state{config = Config} = State) -> 
+    {ok, {_, _, Up, _Down}} = ct_release_test:get_appup(CTData, ssl),
+    ct:pal("Up: ~p", [Up]),
+    Soft = is_soft(Up), %% It is symmetrical, if upgrade is soft so is downgrade  
+    case Soft of 
+	true ->
+	    {Server, Client} = soft_start_connection(Config),
+	    State#state{server = Server, client = Client,
+			soft = Soft};
+	false ->
+	    State#state{soft = Soft}
+    end.
+
+upgrade_upgraded(_, #state{soft = false, config = Config} = State) -> 
+    {Server, Client} = restart_start_connection(Config),
+    ssl_test_lib:check_result(Server, ok, Client, ok),
+    ssl_test_lib:close(Server),
+    ssl_test_lib:close(Client),
+    State;
+
+upgrade_upgraded(_, #state{server = Server0, client = Client0,
+			   config = Config, soft = true} = State) -> 
+    Server0 ! changed_version,
+    Client0 ! changed_version,
+    ssl_test_lib:check_result(Server0, ok, Client0, ok),
+    ssl_test_lib:close(Server0),
+    ssl_test_lib:close(Client0),
+    {Server, Client} = soft_start_connection(Config),
+    State#state{server = Server, client = Client}.
+
+upgrade_downgraded(_, #state{soft = false, config = Config} = State) -> 
+    {Server, Client} = restart_start_connection(Config),
+    ssl_test_lib:check_result(Server, ok, Client, ok),
+    ssl_test_lib:close(Server),
+    ssl_test_lib:close(Client),
+    State;
+
+upgrade_downgraded(_, #state{server = Server, client = Client, soft = true} = State) -> 
+    Server ! changed_version,
+    Client ! changed_version,
+    ssl_test_lib:check_result(Server, ok, Client, ok),
+    ssl_test_lib:close(Server),
+    ssl_test_lib:close(Client),
+    State.
+
+use_connection(Socket) ->
+    ssl_test_lib:send_recv_result_active(Socket),
+    receive 
+	changed_version ->
+	    ssl_test_lib:send_recv_result_active(Socket)
+    end.
+
+soft_start_connection(Config) ->
+    ClientOpts = ?config(client_verification_opts, Config),
+    ServerOpts = ?config(server_verification_opts, Config),
+    {ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
+    Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0}, 
+					{from, self()}, 
+					{mfa, {?MODULE, use_connection, []}},
+					{options, ServerOpts}]),
+    
+    Port = ssl_test_lib:inet_port(Server),
+    Client = ssl_test_lib:start_client([{node, ClientNode}, {port, Port},
+					{host, Hostname},
+					{from, self()}, 
+					{mfa, {?MODULE, use_connection, []}},
+					{options, ClientOpts}]),
+    {Server, Client}.
+
+restart_start_connection(Config) ->
+    ClientOpts = ?config(client_verification_opts, Config),
+    ServerOpts = ?config(server_verification_opts, Config),
+    {ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
+    Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0}, 
+					{from, self()}, 
+					{mfa, {ssl_test_lib, send_recv_result_active, []}},
+					{options, ServerOpts}]),
+    
+    Port = ssl_test_lib:inet_port(Server),
+    Client = ssl_test_lib:start_client([{node, ClientNode}, {port, Port},
+					{host, Hostname},
+					{from, self()}, 
+					{mfa, {ssl_test_lib, send_recv_result_active, []}},
+					{options, ClientOpts}]),
+    {Server, Client}.
+
+is_soft([{restart_application, ssl}]) ->	       
+    false;
+is_soft(_) ->	
+    true.
+
diff --git a/lib/ssl/vsn.mk b/lib/ssl/vsn.mk
index d5a9a71736..171147adf2 100644
--- a/lib/ssl/vsn.mk
+++ b/lib/ssl/vsn.mk
@@ -1 +1 @@
-SSL_VSN = 6.0.1
+SSL_VSN = 7.0
diff --git a/lib/stdlib/doc/src/Makefile b/lib/stdlib/doc/src/Makefile
index ff77c3eea0..a4a2ed9931 100644
--- a/lib/stdlib/doc/src/Makefile
+++ b/lib/stdlib/doc/src/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 1997-2012. All Rights Reserved.
+# Copyright Ericsson AB 1997-2015. All Rights Reserved.
 #
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
@@ -48,6 +48,7 @@ XML_REF3_FILES = \
 	digraph.xml \
 	digraph_utils.xml \
 	epp.xml \
+	erl_anno.xml \
 	erl_eval.xml \
 	erl_expand_records.xml \
 	erl_id_trans.xml \
@@ -76,12 +77,12 @@ XML_REF3_FILES = \
 	ms_transform.xml \
 	orddict.xml \
 	ordsets.xml \
-	pg.xml \
 	pool.xml \
 	proc_lib.xml \
 	proplists.xml \
 	qlc.xml \
 	queue.xml \
+	rand.xml \
 	random.xml \
 	re.xml \
 	sets.xml \
diff --git a/lib/stdlib/doc/src/binary.xml b/lib/stdlib/doc/src/binary.xml
index 2410f1f9b8..6c0968d242 100644
--- a/lib/stdlib/doc/src/binary.xml
+++ b/lib/stdlib/doc/src/binary.xml
@@ -5,7 +5,7 @@
   <header>
     <copyright>
       <year>2009</year>
-      <year>2013</year>
+      <year>2014</year>
       <holder>Ericsson AB, All Rights Reserved</holder>
     </copyright>
     <legalnotice>
@@ -450,7 +450,7 @@ store(Binary, GBSet) ->
       </code>
 
       <p>In this example, we chose to copy the binary content before
-      inserting it in the <c>gb_set()</c> if it references a binary more than
+      inserting it in the <c>gb_sets:set()</c> if it references a binary more than
       twice the size of the data we're going to keep. Of course
       different rules for when copying will apply to different
       programs.</p>
@@ -578,6 +578,10 @@ store(Binary, GBSet) ->
 
       <item><p>Removes trailing empty parts of the result (as does trim in <c>re:split/3</c>)</p></item>
 
+      <tag>trim_all</tag>
+
+      <item><p>Removes all empty parts of the result.</p></item>
+
       <tag>global</tag>
 
       <item><p>Repeats the split until the <c><anno>Subject</anno></c> is
diff --git a/lib/stdlib/doc/src/c.xml b/lib/stdlib/doc/src/c.xml
index b49fa6ad67..b43d4786ae 100644
--- a/lib/stdlib/doc/src/c.xml
+++ b/lib/stdlib/doc/src/c.xml
@@ -232,6 +232,14 @@ compile:file(<anno>File</anno>, <anno>Options</anno> ++ [report_errors, report_w
       </desc>
     </func>
     <func>
+      <name name="uptime" arity="0"/>
+      <fsummary>Print node uptime</fsummary>
+      <desc>
+        <p>Prints the node uptime (as given by
+           <c>erlang:statistics(wall_clock)</c>), in human-readable form.</p>
+      </desc>
+    </func>
+    <func>
       <name>xm(ModSpec) -> void()</name>
       <fsummary>Cross reference check a module</fsummary>
       <type>
diff --git a/lib/stdlib/doc/src/calendar.xml b/lib/stdlib/doc/src/calendar.xml
index e32a639b81..d8193a9ec2 100644
--- a/lib/stdlib/doc/src/calendar.xml
+++ b/lib/stdlib/doc/src/calendar.xml
@@ -270,7 +270,8 @@
       <fsummary>Convert now to local date and time</fsummary>
       <desc>
         <p>This function returns local date and time converted from
-          the return value from <c>erlang:now()</c>.</p>
+        the return value from
+	<seealso marker="erts:erlang#timestamp/0"><c>erlang:timestamp/0</c></seealso>.</p>
       </desc>
     </func>
     <func>
@@ -279,7 +280,8 @@
       <fsummary>Convert now to date and time</fsummary>
       <desc>
         <p>This function returns Universal Coordinated Time (UTC)
-          converted from the return value from <c>erlang:now()</c>.</p>
+        converted from the return value from
+	<seealso marker="erts:erlang#timestamp/0"><c>erlang:timestamp/0</c></seealso>.</p>
       </desc>
     </func>
     <func>
diff --git a/lib/stdlib/doc/src/erl_anno.xml b/lib/stdlib/doc/src/erl_anno.xml
new file mode 100644
index 0000000000..281feacdc4
--- /dev/null
+++ b/lib/stdlib/doc/src/erl_anno.xml
@@ -0,0 +1,308 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!DOCTYPE erlref SYSTEM "erlref.dtd">
+
+<erlref>
+  <header>
+    <copyright>
+      <year>2015</year>
+      <year>2015</year>
+      <holder>Ericsson AB, All Rights Reserved</holder>
+    </copyright>
+    <legalnotice>
+  The contents of this file are subject to the Erlang Public License,
+  Version 1.1, (the "License"); you may not use this file except in
+  compliance with the License. You should have received a copy of the
+  Erlang Public License along with this software. If not, it can be
+  retrieved on line at http://www.erlang.org/.
+
+  Software distributed under the License is distributed on an "AS IS"
+  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+  the License for the specific language governing rights and limitations
+  under the License.
+
+  The Initial Developer of the Original Code is Ericsson AB.
+    </legalnotice>
+
+    <title>erl_anno</title>
+    <prepared>Hans Bolinder</prepared>
+    <responsible>Kenneth Lundin</responsible>
+    <docno>1</docno>
+    <approved></approved>
+    <checked></checked>
+    <date>2015-02-26</date>
+    <rev>A</rev>
+    <file>erl_anno.xml</file>
+  </header>
+  <module>erl_anno</module>
+
+  <modulesummary>
+    Abstract Datatype for the Annotations of the Erlang Compiler
+  </modulesummary>
+
+  <description>
+    <p>This module implements an abstract type that is used by the
+      Erlang Compiler and its helper modules for holding data such as
+      column, line number, and text. The data type is a collection of
+      <marker id="annotations"><em>annotations</em></marker> as
+      described in the following.</p>
+    <p>The Erlang Token Scanner returns tokens with a subset of
+      the following annotations, depending on the options:</p>
+    <taglist>
+      <tag><c>column</c></tag>
+      <item><p>The column where the token begins.</p></item>
+      <tag><c>location</c></tag>
+      <item><p>The line and column where the token begins, or
+        just the line if the column unknown.</p>
+      </item>
+      <tag><c>text</c></tag>
+      <item><p>The token's text.</p></item>
+    </taglist>
+    <p>From the above the following annotation is derived:</p>
+    <taglist>
+      <tag><c>line</c></tag>
+      <item><p>The line where the token begins.</p></item>
+    </taglist>
+    <p>Furthermore, the following annotations are supported by
+      this module, and used by various modules:</p>
+    <taglist>
+      <tag><c>file</c></tag>
+      <item><p>A filename.</p></item>
+      <tag><c>generated</c></tag>
+      <item><p>A Boolean indicating if the abstract code is
+        compiler generated. The Erlang Compiler does not emit warnings
+        for such code.</p>
+      </item>
+      <tag><c>record</c></tag>
+      <item><p>A Boolean indicating if the origin of the abstract
+        code is a record. Used by Dialyzer to assign types to tuple
+        elements.</p>
+      </item>
+    </taglist>
+    <p>The functions
+      <seealso marker="erl_scan#column/1">column()</seealso>,
+      <seealso marker="erl_scan#end_location/1">end_location()</seealso>,
+      <seealso marker="erl_scan#line/1">line()</seealso>,
+      <seealso marker="erl_scan#location/1">location()</seealso>, and
+      <seealso marker="erl_scan#text/1">text()</seealso>
+      in the <c>erl_scan</c> module can be used for inspecting
+      annotations in tokens.</p>
+    <p>The functions
+      <seealso marker="erl_parse#map_anno/2">map_anno()</seealso>,
+      <seealso marker="erl_parse#fold_anno/3">fold_anno()</seealso>,
+      <seealso marker="erl_parse#mapfold_anno/3">mapfold_anno()</seealso>,
+      <seealso marker="erl_parse#new_anno/1">new_anno()</seealso>,
+      <seealso marker="erl_parse#anno_from_term/1">
+      anno_from_term()</seealso>, and
+      <seealso marker="erl_parse#anno_to_term/1">
+      anno_to_term()</seealso> in the <c>erl_parse</c> module can be
+      used for manipulating annotations in abstract code.
+    </p>
+  </description>
+
+  <datatypes>
+    <datatype>
+      <name><marker id="type-anno">anno()</marker></name>
+      <desc><p>A collection of annotations.</p>
+      </desc>
+    </datatype>
+    <datatype>
+      <name name="anno_term"></name>
+      <desc>
+        <p>The term representing a collection of annotations. It is
+          either a <c>location()</c> or a list of key-value pairs.</p>
+      </desc>
+    </datatype>
+    <datatype>
+      <name name="column"></name>
+    </datatype>
+    <datatype>
+      <name name="line"></name>
+      <desc>
+      <p>To be changed to a non-negative integer in Erlang/OTP 19.0.</p>
+      </desc>
+    </datatype>
+    <datatype>
+      <name name="location"></name>
+    </datatype>
+    <datatype>
+      <name name="text"></name>
+    </datatype>
+  </datatypes>
+
+  <funcs>
+    <func>
+      <name name="column" arity="1"/>
+      <type name="column"></type>
+      <fsummary>Return the column</fsummary>
+      <desc>
+        <p>Returns the column of the annotations <anno>Anno</anno>.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="end_location" arity="1"/>
+      <type name="location"></type>
+      <fsummary>Return the end location of the text</fsummary>
+      <desc>
+        <p>Returns the end location of the text of the
+          annotations <anno>Anno</anno>. If there is no text,
+          <c>undefined</c> is returned.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="file" arity="1"/>
+      <type name="filename"></type>
+      <fsummary>Return the filename</fsummary>
+      <desc>
+        <p>Returns the filename of the annotations <anno>Anno</anno>.
+          If there is no filename, <c>undefined</c> is returned.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="from_term" arity="1"/>
+      <fsummary>Return annotations given a term</fsummary>
+      <desc>
+        <p>Returns annotations with the representation <anno>Term</anno>.
+        </p>
+        <!--
+        <p>Although it is possible to create new annotations by calling
+          <c>from_term/1</c>, the intention is that one should not do
+          so - the proper way to create annotations is to call
+          <c>new/1</c> and then modify the annotations
+          by calling the <c>set_*</c> functions.</p>
+        -->
+        <p>See also <seealso marker="#to_term/1">to_term()</seealso>.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="generated" arity="1"/>
+      <type name="generated"></type>
+      <fsummary>Return the generated Boolean</fsummary>
+      <desc>
+        <p>Returns <c>true</c> if the annotations <anno>Anno</anno>
+          has been marked as generated. The default is to return
+          <c>false</c>.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="is_anno" arity="1"/>
+      <fsummary>Test for a collection of annotations</fsummary>
+      <desc>
+        <p>Returns <c>true</c> if <anno>Term</anno> is a collection of
+          annotations, <c>false</c> otherwise.</p>
+      </desc>
+    </func>
+    <func>
+      <name name="line" arity="1"/>
+      <type name="line"></type>
+      <fsummary>Return the line</fsummary>
+      <desc>
+        <p>Returns the line of the annotations <anno>Anno</anno>.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="location" arity="1"/>
+      <type name="location"></type>
+      <fsummary>Return the location</fsummary>
+      <desc>
+        <p>Returns the location of the annotations <anno>Anno</anno>.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="new" arity="1"/>
+      <type name="location"></type>
+      <fsummary>Create a new collection of annotations</fsummary>
+      <desc>
+        <p>Creates a new collection of annotations given a location.</p>
+      </desc>
+    </func>
+    <func>
+      <name name="set_file" arity="2"/>
+      <type name="filename"></type>
+      <fsummary>Modify the filename</fsummary>
+      <desc>
+        <p>Modifies the filename of the annotations <anno>Anno</anno>.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="set_generated" arity="2"/>
+      <type name="generated"></type>
+      <fsummary>Modify the generated marker</fsummary>
+      <desc>
+        <p>Modifies the generated marker of the annotations
+          <anno>Anno</anno>.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="set_line" arity="2"/>
+      <type name="line"></type>
+      <fsummary>Modify the line</fsummary>
+      <desc>
+        <p>Modifies the line of the annotations <anno>Anno</anno>.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="set_location" arity="2"/>
+      <type name="location"></type>
+      <fsummary>Modify the location</fsummary>
+      <desc>
+        <p>Modifies the location of the annotations <anno>Anno</anno>.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="set_record" arity="2"/>
+      <type name="record"></type>
+      <fsummary>Modify the record marker</fsummary>
+      <desc>
+        <p>Modifies the record marker of the annotations <anno>Anno</anno>.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="set_text" arity="2"/>
+      <type name="text"></type>
+      <fsummary>Modify the text</fsummary>
+      <desc>
+        <p>Modifies the text of the annotations <anno>Anno</anno>.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="text" arity="1"/>
+      <type name="text"></type>
+      <fsummary>Return the text</fsummary>
+      <desc>
+        <p>Returns the text of the annotations <anno>Anno</anno>.
+        If there is no text, <c>undefined</c> is returned.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="to_term" arity="1"/>
+      <fsummary>Return the term representing a collection of
+        annotations</fsummary>
+      <desc>
+        <p>Returns the term representing the annotations <anno>Anno</anno>.
+        </p>
+        <p>See also <seealso marker="#from_term/1">from_term()</seealso>.
+        </p>
+      </desc>
+    </func>
+  </funcs>
+  <section>
+    <title>See Also</title>
+    <p><seealso marker="erl_scan">erl_scan(3)</seealso>,
+       <seealso marker="erl_parse">erl_parse(3)</seealso>
+    </p>
+  </section>
+</erlref>
diff --git a/lib/stdlib/doc/src/erl_parse.xml b/lib/stdlib/doc/src/erl_parse.xml
index cf0bff48cd..b97d06e919 100644
--- a/lib/stdlib/doc/src/erl_parse.xml
+++ b/lib/stdlib/doc/src/erl_parse.xml
@@ -4,7 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>1996</year><year>2014</year>
+      <year>1996</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -192,6 +192,97 @@
           considered a string.</p>
       </desc>
     </func>
+    <func>
+      <name name="map_anno" arity="2"/>
+      <fsummary>
+        Map a function over the annotations of an abstract form
+      </fsummary>
+      <desc>
+        <p>Modifies the abstract form <anno>Abstr</anno> by applying
+          <anno>Fun</anno> on every collection of annotations of the
+          abstract form. The abstract form is traversed in a
+          depth-first, left-to-right, fashion.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="fold_anno" arity="3"/>
+      <fsummary>
+        Fold a function over the annotations of an abstract form
+      </fsummary>
+      <desc>
+        <p>Updates an accumulator by applying <anno>Fun</anno> on
+          every collection of annotations of the abstract form
+          <anno>Abstr</anno>. The first call to <anno>Fun</anno> has
+          <anno>AccIn</anno> as argument, and the returned accumulator
+          <anno>AccOut</anno> is passed to the next call, and so on.
+          The final value of the accumulator is returned. The abstract
+          form is traversed in a depth-first, left-to-right, fashion.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="mapfold_anno" arity="3"/>
+      <fsummary>
+        Map and fold a function over the annotations of an abstract form
+      </fsummary>
+      <desc>
+        <p>Modifies the abstract form <anno>Abstr</anno> by applying
+          <anno>Fun</anno> on every collection of annotations of the
+          abstract form, while at the same time updating an
+          accumulator. The first call to <anno>Fun</anno> has
+          <anno>AccIn</anno> as second argument, and the returned
+          accumulator <anno>AccOut</anno> is passed to the next call,
+          and so on. The modified abstract form as well as the the
+          final value of the accumulator is returned. The abstract
+          form is traversed in a depth-first, left-to-right, fashion.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="new_anno" arity="1"/>
+      <fsummary>
+        Create new annotations
+      </fsummary>
+      <desc>
+        <p>Creates an abstract form from a term which has the same
+          structure as an abstract form, but <seealso
+          marker="erl_anno#type-location">locations</seealso> where the
+          abstract form has annotations. For each location, <seealso
+          marker="erl_anno#new/1"><c>erl_anno:new/1</c></seealso> is
+          called, and the annotations replace the location.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="anno_from_term" arity="1"/>
+      <fsummary>
+        Return annotations as terms
+      </fsummary>
+      <desc>
+        <p>Assumes that <anno>Term</anno> is a term with the same
+          structure as an abstract form, but with terms, T say, on
+          those places where an abstract form has annotations. Returns
+          an abstract form where every term T has been replaced by the
+          value returned by calling <c>erl_anno:from_term(T)</c>. The
+          term <anno>Term</anno> is traversed in a depth-first,
+          left-to-right, fashion.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="anno_to_term" arity="1"/>
+      <fsummary>
+        Return the representation of annotations
+      </fsummary>
+      <desc>
+        <p>Returns a term where every collection of annotations Anno of
+          <anno>Abstr</anno> has been replaced by the term returned by
+          calling <c>erl_anno:to_term(Anno)</c>. The abstract form is
+          traversed in a depth-first, left-to-right, fashion.
+        </p>
+      </desc>
+    </func>
   </funcs>
 
   <section>
@@ -211,8 +302,9 @@
   <section>
     <title>See Also</title>
     <p><seealso marker="io">io(3)</seealso>,
-      <seealso marker="erl_scan">erl_scan(3)</seealso>,
-      ERTS User's Guide</p>
+       <seealso marker="erl_anno">erl_anno(3)</seealso>,
+       <seealso marker="erl_scan">erl_scan(3)</seealso>,
+       <seealso marker="erts:absform">ERTS User's Guide</seealso></p>
   </section>
 </erlref>
 
diff --git a/lib/stdlib/doc/src/erl_scan.xml b/lib/stdlib/doc/src/erl_scan.xml
index 855c8fc195..8f9c1db25b 100644
--- a/lib/stdlib/doc/src/erl_scan.xml
+++ b/lib/stdlib/doc/src/erl_scan.xml
@@ -4,7 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>1996</year><year>2013</year>
+      <year>1996</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -120,7 +120,7 @@
           <c>string(<anno>String</anno>,
           <anno>StartLocation</anno>, [])</c>.</p>
         <p><c><anno>StartLocation</anno></c> indicates the initial location
-          when scanning starts. If <c><anno>StartLocation</anno></c> is a line
+          when scanning starts. If <c><anno>StartLocation</anno></c> is a line,
           <c>attributes()</c> as well as <c><anno>EndLocation</anno></c> and
           <c><anno>ErrorLocation</anno></c> will be lines. If
           <c><anno>StartLocation</anno></c> is a pair of a line and a column
@@ -132,8 +132,12 @@
           line where the token begins, as well as the text of the
           token (if the <c>text</c> option is given), all of which can
           be accessed by calling <seealso
-          marker="#token_info/1">token_info/1,2</seealso> or <seealso
-          marker="#attributes_info/1">attributes_info/1,2</seealso>.</p>
+          marker="#token_info/1">token_info/1,2</seealso>, <seealso
+          marker="#attributes_info/1">attributes_info/1,2</seealso>,
+          <seealso marker="#column/1">column/1</seealso>,
+          <seealso marker="#line/1">line/1</seealso>,
+          <seealso marker="#location/1">location/1</seealso>, and
+          <seealso marker="#text/1">text/1</seealso>.</p>
         <p>A <em>token</em> is a tuple containing information about
           syntactic category, the token attributes, and the actual
           terminal symbol. For punctuation characters (e.g. <c>;</c>,
@@ -237,6 +241,70 @@
       </desc>
     </func>
     <func>
+      <name name="category" arity="1"/>
+      <fsummary>Return the category</fsummary>
+      <desc>
+        <p>Returns the category of <c><anno>Token</anno></c>.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="symbol" arity="1"/>
+      <fsummary>Return the symbol</fsummary>
+      <desc>
+        <p>Returns the symbol of <c><anno>Token</anno></c>.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="column" arity="1"/>
+      <fsummary>Return the column</fsummary>
+      <desc>
+        <p>Returns the column of <c><anno>Token</anno></c>'s
+          collection of annotations.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="end_location" arity="1"/>
+      <fsummary>Return the end location of the text</fsummary>
+      <desc>
+        <p>Returns the end location of the text of
+          <c><anno>Token</anno></c>'s collection of annotations. If
+            there is no text,
+          <c>undefined</c> is returned.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="line" arity="1"/>
+      <fsummary>Return the line</fsummary>
+      <desc>
+        <p>Returns the line of <c><anno>Token</anno></c>'s collection
+          of annotations.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="location" arity="1"/>
+      <fsummary>Return the location</fsummary>
+      <desc>
+        <p>Returns the location of <c><anno>Token</anno></c>'s
+          collection of annotations.
+        </p>
+      </desc>
+    </func>
+    <func>
+      <name name="text" arity="1"/>
+      <fsummary>Return the text</fsummary>
+      <desc>
+        <p>Returns the text of <c><anno>Token</anno></c>'s collection
+        of annotations. If there is no text, <c>undefined</c> is
+        returned.
+        </p>
+      </desc>
+    </func>
+    <func>
       <name name="token_info" arity="1"/>
       <fsummary>Return information about a token</fsummary>
       <desc>
@@ -417,6 +485,7 @@ Module:format_error(ErrorDescriptor)</code>
   <section>
     <title>See Also</title>
     <p><seealso marker="io">io(3)</seealso>,
-      <seealso marker="erl_parse">erl_parse(3)</seealso></p>
+       <seealso marker="erl_anno">erl_anno(3)</seealso>,
+       <seealso marker="erl_parse">erl_parse(3)</seealso></p>
   </section>
 </erlref>
diff --git a/lib/stdlib/doc/src/ets.xml b/lib/stdlib/doc/src/ets.xml
index 3df24bf688..2bfe074c3e 100644
--- a/lib/stdlib/doc/src/ets.xml
+++ b/lib/stdlib/doc/src/ets.xml
@@ -456,6 +456,12 @@ Error: fun containing local Erlang function calls
           <item><c>{type, <seealso marker="#type-type">type()</seealso>}</c>          <br></br>
 
            The table type.</item>
+          <item><c>{read_concurrency, boolean()}</c>          <br></br>
+
+           Indicates whether the table uses read_concurrency or not.</item>
+          <item><c>{write_concurrency, boolean()}</c>          <br></br>
+
+           Indicates whether the table uses write_concurrency or not.</item>
         </list>
       </desc>
     </func>
@@ -1429,7 +1435,9 @@ is_integer(X), is_integer(Y), X + Y < 4711]]></code>
 	<p>Whenever the <c>extended_info</c> option is used, it
 	results in a file not readable by versions of ets prior to
 	that in stdlib-1.15.1</p> 
-
+        <p>The <c>sync</c> option, if set to <c>true</c>, ensures that
+	the content of the file is actually written to the disk before
+	<c>tab2file</c> returns. Default is <c>{sync, false}</c>.</p>
       </desc>
     </func>
     <func>
@@ -1587,6 +1595,21 @@ true</pre>
       </desc>
     </func>
     <func>
+      <name name="take" arity="2"/>
+      <fsummary>Return and remove all objects with a given key from an ETS
+        table.</fsummary>
+      <desc>
+        <p>Returns a list of all objects with the key <c><anno>Key</anno></c> in
+          the table <c><anno>Tab</anno></c> and removes.</p>
+        <p>The given <c><anno>Key</anno></c> is used to identify the object by
+          either <em>comparing equal</em> the key of an object in an
+          <c>ordered_set</c> table, or <em>matching</em> in other types of
+          tables (see <seealso marker="#lookup/2">lookup/2</seealso> and
+          <seealso marker="#new/2">new/2</seealso> for details on the
+          difference).</p>
+      </desc>
+    </func>
+    <func>
       <name name="to_dets" arity="2"/>
       <fsummary>Fill a Dets table with objects from an ETS table.</fsummary>
       <desc>
@@ -1597,14 +1620,18 @@ true</pre>
     </func>
     <func> 
       <name name="update_counter" arity="3" clause_i="1"/>
+      <name name="update_counter" arity="4" clause_i="1"/>
       <name name="update_counter" arity="3" clause_i="2"/>
+      <name name="update_counter" arity="4" clause_i="2"/>
       <name name="update_counter" arity="3" clause_i="3"/>
+      <name name="update_counter" arity="4" clause_i="3"/>
       <type variable="Tab"/>
       <type variable="Key"/>
       <type variable="UpdateOp" name_i="1"/>
       <type variable="Pos" name_i="1"/>
       <type variable="Threshold" name_i="1"/>
       <type variable="SetValue" name_i="1"/>
+      <type variable="Default"/>
       <fsummary>Update a counter object in an ETS table.</fsummary>
       <desc>
         <p>This function provides an efficient way to update one or more 
@@ -1646,12 +1673,22 @@ true</pre>
           <seealso marker="#lookup/2">lookup/2</seealso> and 
           <seealso marker="#new/2">new/2</seealso>
           for details on the difference).</p>
+        <p>If a default object <c><anno>Default</anno></c> is given, it is used
+          as the object to be updated if the key is missing from the table. The
+          value in place of the key is ignored and replaced by the proper key
+          value. The return value is as if the default object had not been used,
+          that is a single updated element or a list of them.</p>
         <p>The function will fail with reason <c>badarg</c> if:</p>
         <list type="bulleted">
           <item>the table is not of type <c>set</c> or
           <c>ordered_set</c>,</item>
-          <item>no object with the right key exists,</item>
+          <item>no object with the right key exists and no default object were
+            supplied,</item>
           <item>the object has the wrong arity,</item>
+          <item>the default object arity is smaller than
+            <c><![CDATA[<keypos>]]></c></item>
+          <item>any field from the default object being updated is not an
+            integer</item>
           <item>the element to update is not an integer,</item>
           <item>the element to update is also the key, or,</item>
           <item>any of <c><anno>Pos</anno></c>, <c><anno>Incr</anno></c>, <c><anno>Threshold</anno></c> or
diff --git a/lib/stdlib/doc/src/file_sorter.xml b/lib/stdlib/doc/src/file_sorter.xml
index 16572df3c5..c069333c29 100644
--- a/lib/stdlib/doc/src/file_sorter.xml
+++ b/lib/stdlib/doc/src/file_sorter.xml
@@ -105,9 +105,9 @@
       <c>file:get_cwd()</c> is used instead. The names of
        temporary files are derived from the Erlang nodename
        (<c>node()</c>), the process identifier of the current Erlang
-       emulator (<c>os:getpid()</c>), and a timestamp
-       (<c>erlang:now()</c>); a typical name would be
-      <c>fs_mynode@myhost_1763_1043_337000_266005.17</c>, where
+       emulator (<c>os:getpid()</c>), and a unique integer
+       (<c>erlang:unique_integer([positive])</c>); a typical name would be
+      <c>fs_mynode@myhost_1763_4711.17</c>, where
       <c>17</c> is a sequence number. Existing files will be
        overwritten. Temporary files are deleted unless some
        uncaught EXIT signal occurs.
diff --git a/lib/stdlib/doc/src/gb_sets.xml b/lib/stdlib/doc/src/gb_sets.xml
index ea96c14472..405bae5698 100644
--- a/lib/stdlib/doc/src/gb_sets.xml
+++ b/lib/stdlib/doc/src/gb_sets.xml
@@ -4,7 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>2001</year><year>2014</year>
+      <year>2001</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -306,6 +306,17 @@
       </desc>
     </func>
     <func>
+      <name name="iterator_from" arity="2"/>
+      <fsummary>Return an iterator for a set starting from a specified element</fsummary>
+      <desc>
+        <p>Returns an iterator that can be used for traversing the
+          entries of <c><anno>Set</anno></c>; see <c>next/1</c>.
+          The difference as compared to the iterator returned by
+          <c>iterator/1</c> is that the first element greater than
+          or equal to <c><anno>Element</anno></c> is returned.</p>
+      </desc>
+    </func>
+    <func>
       <name name="largest" arity="1"/>
       <fsummary>Return largest element</fsummary>
       <desc>
diff --git a/lib/stdlib/doc/src/gb_trees.xml b/lib/stdlib/doc/src/gb_trees.xml
index b2f237e1d7..82167e1083 100644
--- a/lib/stdlib/doc/src/gb_trees.xml
+++ b/lib/stdlib/doc/src/gb_trees.xml
@@ -4,7 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>2001</year><year>2014</year>
+      <year>2001</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -183,6 +183,17 @@
       </desc>
     </func>
     <func>
+      <name name="iterator_from" arity="2"/>
+      <fsummary>Return an iterator for a tree starting from specified key</fsummary>
+      <desc>
+        <p>Returns an iterator that can be used for traversing the
+            entries of <c><anno>Tree</anno></c>; see <c>next/1</c>.
+            The difference as compared to the iterator returned by
+            <c>iterator/1</c> is that the first key greater than
+            or equal to <c><anno>Key</anno></c> is returned.</p>
+      </desc>
+    </func>
+    <func>
       <name name="keys" arity="1"/>
       <fsummary>Return a list of the keys in a tree</fsummary>
       <desc>
diff --git a/lib/stdlib/doc/src/gen_event.xml b/lib/stdlib/doc/src/gen_event.xml
index b9dfff833e..5c96d6e576 100644
--- a/lib/stdlib/doc/src/gen_event.xml
+++ b/lib/stdlib/doc/src/gen_event.xml
@@ -4,7 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>1996</year><year>2013</year>
+      <year>1996</year><year>2014</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -44,6 +44,7 @@
     <pre>
 gen_event module                   Callback module
 ----------------                   ---------------
+gen_event:start
 gen_event:start_link       ----->  -
 
 gen_event:add_handler
@@ -177,7 +178,7 @@ gen_event:stop             ----->  Module:terminate/2
       <name>add_handler(EventMgrRef, Handler, Args) -> Result</name>
       <fsummary>Add an event handler to a generic event manager.</fsummary>
       <type>
-        <v>EventMgr = Name | {Name,Node} | {global,GlobalName}
+        <v>EventMgrRef = Name | {Name,Node} | {global,GlobalName}
 	| {via,Module,ViaName} | pid()</v>
         <v>&nbsp;Name = Node = atom()</v>
         <v>&nbsp;GlobalName = ViaName = term()</v>
@@ -223,7 +224,7 @@ gen_event:stop             ----->  Module:terminate/2
       <name>add_sup_handler(EventMgrRef, Handler, Args) -> Result</name>
       <fsummary>Add a supervised event handler to a generic event manager.</fsummary>
       <type>
-        <v>EventMgr = Name | {Name,Node} | {global,GlobalName}
+        <v>EventMgrRef = Name | {Name,Node} | {global,GlobalName}
 	| {via,Module,ViaName} | pid()</v>
         <v>&nbsp;Name = Node = atom()</v>
         <v>&nbsp;GlobalName = ViaName = term()</v>
@@ -456,19 +457,37 @@ gen_event:stop             ----->  Module:terminate/2
     </func>
     <func>
       <name>stop(EventMgrRef) -> ok</name>
+      <name>stop(EventMgrRef, Reason, Timeout) -> ok</name>
       <fsummary>Terminate a generic event manager.</fsummary>
       <type>
         <v>EventMgrRef = Name | {Name,Node} | {global,GlobalName}
 	| {via,Module,ViaName} | pid()</v>
         <v>Name = Node = atom()</v>
         <v>GlobalName = ViaName = term()</v>
+        <v>Reason = term()</v>
+        <v>Timeout = int()>0 | infinity</v>
       </type>
       <desc>
-        <p>Terminates the event manager <c>EventMgrRef</c>. Before
-          terminating, the event manager will call
-          <c>Module:terminate(stop,...)</c> for each installed event
-          handler.</p>
-        <p>See <c>add_handler/3</c> for a description of the argument.</p>
+        <p>Orders the event manager <c>EventMgrRef</c> to exit with
+          the given <c>Reason</c> and waits for it to
+          terminate. Before terminating, the gen_event will call
+          <seealso marker="#Module:terminate/2">Module:terminate(stop,...)</seealso>
+	  for each installed event handler.</p>
+	<p>The function returns <c>ok</c> if the event manager terminates
+	  with the expected reason. Any other reason than <c>normal</c>,
+          <c>shutdown</c>, or <c>{shutdown,Term}</c> will cause an
+          error report to be issued using
+          <seealso marker="kernel:error_logger#format/2">error_logger:format/2</seealso>.
+	  The default <c>Reason</c> is <c>normal</c>.</p>
+	<p><c>Timeout</c> is an integer greater than zero which
+          specifies how many milliseconds to wait for the event manager to
+          terminate, or the atom <c>infinity</c> to wait
+          indefinitely. The default value is <c>infinity</c>. If the
+          event manager has not terminated within the specified time, a
+          <c>timeout</c> exception is raised.</p>
+	<p>If the process does not exist, a <c>noproc</c> exception
+	  is raised.</p>
+        <p>See <c>add_handler/3</c> for a description of <c>EventMgrRef</c>.</p>
       </desc>
     </func>
   </funcs>
diff --git a/lib/stdlib/doc/src/gen_fsm.xml b/lib/stdlib/doc/src/gen_fsm.xml
index 848d57f3e6..b1bba3eff0 100644
--- a/lib/stdlib/doc/src/gen_fsm.xml
+++ b/lib/stdlib/doc/src/gen_fsm.xml
@@ -4,7 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>1996</year><year>2013</year>
+      <year>1996</year><year>2014</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -43,8 +43,11 @@
     <pre>
 gen_fsm module                    Callback module
 --------------                    ---------------
+gen_fsm:start
 gen_fsm:start_link                -----> Module:init/1
 
+gen_fsm:stop                      -----> Module:terminate/3
+
 gen_fsm:send_event                -----> Module:StateName/2
 
 gen_fsm:send_all_state_event      -----> Module:handle_event/3
@@ -187,6 +190,39 @@ gen_fsm:sync_send_all_state_event -----> Module:handle_sync_event/4
       </desc>
     </func>
     <func>
+      <name>stop(FsmRef) -> ok</name>
+      <name>stop(FsmRef, Reason, Timeout) -> ok</name>
+      <fsummary>Synchronously stop a generic FSM.</fsummary>
+      <type>
+        <v>FsmRef = Name | {Name,Node} | {global,GlobalName}
+	| {via,Module,ViaName} | pid()</v>
+        <v>&nbsp;Node = atom()</v>
+        <v>&nbsp;GlobalName = ViaName = term()</v>
+        <v>Reason = term()</v>
+        <v>Timeout = int()>0 | infinity</v>
+      </type>
+      <desc>
+	<p>Orders a generic FSM to exit with the given <c>Reason</c>
+	  and waits for it to terminate. The gen_fsm will call
+          <seealso marker="#Module:terminate/3">Module:terminate/3</seealso>
+	  before exiting.</p>
+	<p>The function returns <c>ok</c> if the generic FSM terminates
+	  with the expected reason. Any other reason than <c>normal</c>,
+          <c>shutdown</c>, or <c>{shutdown,Term}</c> will cause an
+          error report to be issued using
+          <seealso marker="kernel:error_logger#format/2">error_logger:format/2</seealso>.
+	  The default <c>Reason</c> is <c>normal</c>.</p>
+	<p><c>Timeout</c> is an integer greater than zero which
+          specifies how many milliseconds to wait for the generic FSM
+          to terminate, or the atom <c>infinity</c> to wait
+          indefinitely. The default value is <c>infinity</c>. If the
+          generic FSM has not terminated within the specified time, a
+	  <c>timeout</c> exception is raised.</p>
+	<p>If the process does not exist, a <c>noproc</c> exception
+	  is raised.</p>
+      </desc>
+    </func>
+    <func>
       <name>send_event(FsmRef, Event) -> ok</name>
       <fsummary>Send an event asynchronously to a generic FSM.</fsummary>
       <type>
@@ -528,7 +564,8 @@ gen_fsm:sync_send_all_state_event -----> Module:handle_sync_event/4
           <c>Module:init/1</c> for a description of <c>Timeout</c> and <c>hibernate</c>.</p>
         <p>If the function returns <c>{stop,Reason,NewStateData}</c>,
           the gen_fsm will call
-          <c>Module:terminate(Reason,NewStateData)</c> and terminate.</p>
+          <c>Module:terminate(Reason,StateName,NewStateData)</c> and
+          terminate.</p>
       </desc>
     </func>
     <func>
@@ -614,7 +651,8 @@ gen_fsm:sync_send_all_state_event -----> Module:handle_sync_event/4
           <c>{stop,Reason,NewStateData}</c>, any reply to <c>From</c>
           must be given explicitly using <c>gen_fsm:reply/2</c>.
           The gen_fsm will then call
-          <c>Module:terminate(Reason,NewStateData)</c> and terminate.</p>
+          <c>Module:terminate(Reason,StateName,NewStateData)</c> and
+          terminate.</p>
       </desc>
     </func>
     <func>
diff --git a/lib/stdlib/doc/src/gen_server.xml b/lib/stdlib/doc/src/gen_server.xml
index 62c0394479..3c92de59b9 100644
--- a/lib/stdlib/doc/src/gen_server.xml
+++ b/lib/stdlib/doc/src/gen_server.xml
@@ -4,7 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>1996</year><year>2013</year>
+      <year>1996</year><year>2014</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -43,8 +43,11 @@
     <pre>
 gen_server module            Callback module
 -----------------            ---------------
+gen_server:start
 gen_server:start_link -----> Module:init/1
 
+gen_server:stop       -----> Module:terminate/2
+
 gen_server:call
 gen_server:multi_call -----> Module:handle_call/3
 
@@ -184,6 +187,40 @@ gen_server:abcast     -----> Module:handle_cast/2
       </desc>
     </func>
     <func>
+      <name>stop(ServerRef) -> ok</name>
+      <name>stop(ServerRef, Reason, Timeout) -> ok</name>
+      <fsummary>Synchronously stop a generic server.</fsummary>
+      <type>
+        <v>ServerRef = Name | {Name,Node} | {global,GlobalName}
+	| {via,Module,ViaName} | pid()</v>
+        <v>&nbsp;Node = atom()</v>
+        <v>&nbsp;GlobalName = ViaName = term()</v>
+        <v>Reason = term()</v>
+        <v>Timeout = int()>0 | infinity</v>
+      </type>
+      <desc>
+	<p>Orders a generic server to exit with the
+	  given <c>Reason</c> and waits for it to terminate. The
+	  gen_server will call
+          <seealso marker="#Module:terminate/2">Module:terminate/2</seealso>
+	  before exiting.</p>
+	<p>The function returns <c>ok</c> if the server terminates
+	  with the expected reason. Any other reason than <c>normal</c>,
+          <c>shutdown</c>, or <c>{shutdown,Term}</c> will cause an
+          error report to be issued using
+          <seealso marker="kernel:error_logger#format/2">error_logger:format/2</seealso>.
+	  The default <c>Reason</c> is <c>normal</c>.</p>
+	<p><c>Timeout</c> is an integer greater than zero which
+          specifies how many milliseconds to wait for the server to
+          terminate, or the atom <c>infinity</c> to wait
+          indefinitely. The default value is <c>infinity</c>. If the
+          server has not terminated within the specified time, a
+          <c>timeout</c> exception is raised.</p>
+	<p>If the process does not exist, a <c>noproc</c> exception
+	  is raised.</p>
+      </desc>
+    </func>
+    <func>
       <name>call(ServerRef, Request) -> Reply</name>
       <name>call(ServerRef, Request, Timeout) -> Reply</name>
       <fsummary>Make a synchronous call to a generic server.</fsummary>
@@ -284,7 +321,7 @@ gen_server:abcast     -----> Module:handle_cast/2
              which may be infinity.</p>
           <p>This problem does not exist if all nodes are Erlang nodes.</p>
         </warning>
-        <p>To avoid that late answers (after the timeout) pollutes
+        <p>To prevent late answers (after the timeout) from polluting
           the caller's message queue, a middleman process is used to
           do the actual calls. Late answers will then be discarded
           when they arrive to a terminated process.</p>
diff --git a/lib/stdlib/doc/src/io.xml b/lib/stdlib/doc/src/io.xml
index a28180b42a..8ebfdb2e7f 100644
--- a/lib/stdlib/doc/src/io.xml
+++ b/lib/stdlib/doc/src/io.xml
@@ -505,7 +505,8 @@ ok
             <p>Writes the data with standard syntax in the same way as
               <c>~w</c>, but breaks terms whose printed representation
               is longer than one line into many lines and indents each
-              line sensibly. It also tries to detect lists of
+              line sensibly. Left justification is not supported.
+              It also tries to detect lists of
               printable characters and to output these as strings. The
               Unicode translation modifier is used for determining
               what characters are printable. For example:</p>
diff --git a/lib/stdlib/doc/src/io_lib.xml b/lib/stdlib/doc/src/io_lib.xml
index 3312b08064..2117d66381 100644
--- a/lib/stdlib/doc/src/io_lib.xml
+++ b/lib/stdlib/doc/src/io_lib.xml
@@ -4,7 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>1996</year><year>2013</year>
+      <year>1996</year><year>2014</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -59,6 +59,35 @@
     <datatype>
       <name name="latin1_string"/>
     </datatype>
+    <datatype>
+      <name name="format_spec"/>
+      <desc><p>Description:</p>
+      <list type="bulleted">
+        <item><p><c>control_char</c> is the type of control
+          sequence: <c>$P</c>, <c>$w</c>, and so on;</p>
+        </item>
+        <item><p><c>args</c> is a list of the arguments used by the
+          control sequence, or an empty list if the control sequence
+          does not take any arguments;</p>
+        </item>
+        <item><p><c>width</c> is the field width;</p>
+        </item>
+        <item><p><c>adjust</c> is the adjustment;</p>
+        </item>
+        <item><p><c>precision</c> is the precision of the printed
+          argument;</p>
+        </item>
+        <item><p><c>pad_char</c> is the padding character;</p>
+        </item>
+        <item><p><c>encoding</c> is set to <c>true</c> if the translation
+          modifier <c>t</c> is present;</p>
+        </item>
+        <item><p><c>strings</c> is set to <c>false</c> if the modifier
+          <c>l</c> is present.</p>
+        </item>
+      </list>
+      </desc>
+    </datatype>
   </datatypes>
   <funcs>
     <func>
@@ -260,6 +289,45 @@
       </desc>
     </func>
     <func>
+      <name name="scan_format" arity="2"/>
+      <fsummary>Parse all control sequences in the format string</fsummary>
+      <desc>
+        <p>Returns a list corresponding to the given format string,
+          where control sequences have been replaced with
+          corresponding tuples. This list can be passed to <seealso
+          marker="#build_text/1">io_lib:build_text/1</seealso> to have
+          the same effect as <c>io_lib:format(Format, Args)</c>, or to
+          <seealso
+          marker="#unscan_format/1">io_lib:unscan_format/1</seealso>
+          in order to get the corresponding pair of <c>Format</c> and
+          <c>Args</c> (with every <c>*</c> and corresponding argument
+          expanded to numeric values).</p>
+        <p>A typical use of this function is to replace unbounded-size
+          control sequences like <c>~w</c> and <c>~p</c> with the
+          depth-limited variants <c>~W</c> and <c>~P</c> before
+          formatting to text, e.g. in a logger.</p>
+      </desc>
+    </func>
+    <func>
+      <name name="unscan_format" arity="1"/>
+      <fsummary>Revert a pre-parsed format list to a plain character list
+                and a list of arguments</fsummary>
+      <desc>
+        <p>See <seealso
+          marker="#scan_format/2">io_lib:scan_format/2</seealso> for
+          details.</p>
+      </desc>
+    </func>
+    <func>
+      <name name="build_text" arity="1"/>
+      <fsummary>Build the output text for a pre-parsed format list</fsummary>
+      <desc>
+        <p>See <seealso
+          marker="#scan_format/2">io_lib:scan_format/2</seealso> for
+          details.</p>
+      </desc>
+    </func>
+    <func>
       <name name="indentation" arity="2"/>
       <fsummary>Indentation after printing string</fsummary>
       <desc>
diff --git a/lib/stdlib/doc/src/lists.xml b/lib/stdlib/doc/src/lists.xml
index ee3c51c62c..dcc08d008b 100644
--- a/lib/stdlib/doc/src/lists.xml
+++ b/lib/stdlib/doc/src/lists.xml
@@ -176,7 +176,7 @@ filtermap(Fun, List1) ->
                            false -> Acc;
                            true -> [Elem|Acc];
                            {true,Value} -> [Value|Acc]
-                       end,
+                       end
                 end, [], List1).</code>
         <p>Example:</p>
         <pre>
diff --git a/lib/stdlib/doc/src/maps.xml b/lib/stdlib/doc/src/maps.xml
index f766c843be..7345a9357a 100644
--- a/lib/stdlib/doc/src/maps.xml
+++ b/lib/stdlib/doc/src/maps.xml
@@ -33,6 +33,28 @@
 	<funcs>
 
 		<func>
+			<name name="filter" arity="2"/>
+			<fsummary>Choose pairs which satisfy a predicate</fsummary>
+			<desc>
+				<p>
+                    Returns a map <c><anno>Map2</anno></c> for which predicate
+                    <c><anno>Pred</anno></c> holds true in <c><anno>Map1</anno></c>.
+				</p>
+				<p>
+                    The call will fail with a <c>{badmap,Map}</c> exception if
+                    <c><anno>Map1</anno></c> is not a map or with <c>badarg</c> if
+                    <c><anno>Pred</anno></c> is not a function of arity 2.
+				</p>
+				<p>Example:</p>
+				<code type="none">
+> M = #{a => 2, b => 3, c=> 4, "a" => 1, "b" => 2, "c" => 4},
+  Pred = fun(K,V) -> is_atom(K) andalso (V rem 2) =:= 0 end,
+  maps:filter(Pred,M).
+#{a => 2,c => 4} </code>
+			</desc>
+		</func>
+
+		<func>
 			<name name="find" arity="2"/>
 			<fsummary></fsummary>
 			<desc>
@@ -40,6 +62,9 @@
 					Returns a tuple <c>{ok, Value}</c> where <c><anno>Value</anno></c> is the value associated with <c><anno>Key</anno></c>,
 					or <c>error</c> if no value is associated with <c><anno>Key</anno></c> in <c><anno>Map</anno></c>. 
 				</p>
+				<p>
+					The call will fail with a <c>{badmap,Map}</c> exception if <c><anno>Map</anno></c> is not a map.
+				</p>
 				<p>Example:</p>
 				<code type="none">
 > Map = #{"hi" => 42},
@@ -95,8 +120,10 @@
 				<p>
 					Returns the value <c><anno>Value</anno></c> associated with <c><anno>Key</anno></c> if
 					<c><anno>Map</anno></c> contains <c><anno>Key</anno></c>.
-					If no value is associated with <c><anno>Key</anno></c> then the call will
-					fail with an exception.
+				</p>
+				<p>
+					The call will fail with a <c>{badmap,Map}</c> exception if <c><anno>Map</anno></c> is not a map,
+					or with a <c>{badkey,Key}</c> exception if no value is associated with <c><anno>Key</anno></c>.
 				</p>
 				<p>Example:</p>
 				<code type="none">
@@ -116,6 +143,10 @@
 					<c><anno>Map</anno></c> contains <c><anno>Key</anno></c>.
 					If no value is associated with <c><anno>Key</anno></c> then returns <c><anno>Default</anno></c>.
 				</p>
+				<p>
+					The call will fail with a <c>{badmap,Map}</c> exception if <c><anno>Map</anno></c> is not a map.
+
+				</p>
 				<p>Example:</p>
 				<code type="none">
 > Map = #{ key1 => val1, key2 => val2 }.
@@ -134,7 +165,9 @@ val1
 				<p>
 					Returns <c>true</c> if map <c><anno>Map</anno></c> contains <c><anno>Key</anno></c> and returns
 					<c>false</c> if it does not contain the <c><anno>Key</anno></c>.
-					The function will fail with an exception if <c><anno>Map</anno></c> is not a Map.
+				</p>
+				<p>
+					The call will fail with a <c>{badmap,Map}</c> exception if <c><anno>Map</anno></c> is not a map.
 				</p>
 				<p>Example:</p>
 				<code type="none">
@@ -154,6 +187,9 @@ false</code>
 				<p>
 					Returns a complete list of keys, in arbitrary order, which resides within <c><anno>Map</anno></c>.
 				</p>
+				<p>
+					The call will fail with a <c>{badmap,Map}</c> exception if <c><anno>Map</anno></c> is not a map.
+				</p>
 				<p>Example:</p>
 				<code type="none">
 > Map = #{42 => value_three,1337 => "value two","a" => 1},
@@ -189,6 +225,10 @@ false</code>
 					Merges two maps into a single map <c><anno>Map3</anno></c>. If two keys exists in both maps the
 					value in <c><anno>Map1</anno></c> will be superseded by the value in <c><anno>Map2</anno></c>.
 				</p>
+				<p>
+					The call will fail with a <c>{badmap,Map}</c> exception if <c><anno>Map1</anno></c> or
+					<c><anno>Map2</anno></c> is not a map.
+				</p>
 				<p>Example:</p>
 				<code type="none">
 > Map1 = #{a => "value_one", b => "value_two"},
@@ -222,6 +262,10 @@ false</code>
 					replaced by value <c><anno>Value</anno></c>. The function returns a new map <c><anno>Map2</anno></c> containing the new association and
 					the old associations in <c><anno>Map1</anno></c>.
 				</p>
+				<p>
+					The call will fail with a <c>{badmap,Map}</c> exception if <c><anno>Map1</anno></c> is not a map.
+				</p>
+
 				<p>Example:</p>
 				<code type="none">
 > Map = #{"a" => 1}.
@@ -241,6 +285,9 @@ false</code>
 					The function removes the <c><anno>Key</anno></c>, if it exists, and its associated value from
 					<c><anno>Map1</anno></c> and returns a new map <c><anno>Map2</anno></c> without key <c><anno>Key</anno></c>.
 				</p>
+				<p>
+					The call will fail with a <c>{badmap,Map}</c> exception if <c><anno>Map1</anno></c> is not a map.
+				</p>
 				<p>Example:</p>
 				<code type="none">
 > Map = #{"a" => 1}.
@@ -276,6 +323,9 @@ false</code>
 					The fuction returns a list of pairs representing the key-value associations of <c><anno>Map</anno></c>,
 					where the pairs, <c>[{K1,V1}, ..., {Kn,Vn}]</c>, are returned in arbitrary order.
 				</p>
+				<p>
+					The call will fail with a <c>{badmap,Map}</c> exception if <c><anno>Map</anno></c> is not a map.
+				</p>
 				<p>Example:</p>
 				<code type="none">
 > Map = #{42 => value_three,1337 => "value two","a" => 1},
@@ -291,8 +341,11 @@ false</code>
 				<p>
 					If <c><anno>Key</anno></c> exists in <c><anno>Map1</anno></c> the old associated value is
 					replaced by value <c><anno>Value</anno></c>. The function returns a new map <c><anno>Map2</anno></c> containing
-					the new associated value. If <c><anno>Key</anno></c> does not exist in <c><anno>Map1</anno></c> an exception is
-					generated.
+					the new associated value.
+				</p>
+				<p>
+					The call will fail with a <c>{badmap,Map}</c> exception if <c><anno>Map1</anno></c> is not a map,
+					or with a <c>{badkey,Key}</c> exception if no value is associated with <c><anno>Key</anno></c>.
 				</p>
 				<p>Example:</p>
 				<code type="none">
@@ -308,7 +361,10 @@ false</code>
 			<fsummary></fsummary>
 			<desc>
 				<p>
-					Returns a complete list of values, in arbitrary order, contained in map <c>M</c>.
+					Returns a complete list of values, in arbitrary order, contained in map <c>Map</c>.
+				</p>
+				<p>
+					The call will fail with a <c>{badmap,Map}</c> exception if <c><anno>Map</anno></c> is not a map.
 				</p>
 				<p>Example:</p>
 				<code type="none">
diff --git a/lib/stdlib/doc/src/math.xml b/lib/stdlib/doc/src/math.xml
index 43cd20e726..7cfc8a1175 100644
--- a/lib/stdlib/doc/src/math.xml
+++ b/lib/stdlib/doc/src/math.xml
@@ -67,6 +67,7 @@
       <name name="atanh" arity="1"/>
       <name name="exp" arity="1"/>
       <name name="log" arity="1"/>
+      <name name="log2" arity="1"/>
       <name name="log10" arity="1"/>
       <name name="pow" arity="2"/>
       <name name="sqrt" arity="1"/>
diff --git a/lib/stdlib/doc/src/orddict.xml b/lib/stdlib/doc/src/orddict.xml
index 6d1702bc59..c853b402d4 100644
--- a/lib/stdlib/doc/src/orddict.xml
+++ b/lib/stdlib/doc/src/orddict.xml
@@ -4,7 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>2000</year><year>2013</year>
+      <year>2000</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -48,8 +48,11 @@
 
   <datatypes>
     <datatype>
-      <name name="orddict"/>
-      <desc><p>As returned by new/0.</p></desc>
+      <name name="orddict" n_vars="2"/>
+      <desc><p>Dictionary as returned by <c>new/0</c>.</p></desc>
+    </datatype>
+    <datatype>
+      <name name="orddict" n_vars="0"/>
     </datatype>
   </datatypes>
 
@@ -125,8 +128,7 @@
           <c><anno>Orddict</anno></c> together with an extra argument <c>Acc</c>
           (short for accumulator). <c><anno>Fun</anno></c> must return a new
           accumulator which is passed to the next call. <c><anno>Acc0</anno></c> is
-          returned if the list is empty. The evaluation order is
-          undefined.</p>
+          returned if the list is empty.</p>
       </desc>
     </func>
     <func>
@@ -150,8 +152,7 @@
       <fsummary>Map a function over a dictionary</fsummary>
       <desc>
         <p><c>map</c> calls <c><anno>Fun</anno></c> on successive keys and values
-          of <c><anno>Orddict1</anno></c> to return a new value for each key.
-          The evaluation order is undefined.</p>
+          of <c><anno>Orddict1</anno></c> to return a new value for each key.</p>
       </desc>
     </func>
     <func>
diff --git a/lib/stdlib/doc/src/pg.xml b/lib/stdlib/doc/src/pg.xml
deleted file mode 100644
index a3b69884b6..0000000000
--- a/lib/stdlib/doc/src/pg.xml
+++ /dev/null
@@ -1,114 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE erlref SYSTEM "erlref.dtd">
-
-<erlref>
-  <header>
-    <copyright>
-      <year>1996</year>
-      <year>2014</year>
-      <holder>Ericsson AB, All Rights Reserved</holder>
-    </copyright>
-    <legalnotice>
-  The contents of this file are subject to the Erlang Public License,
-  Version 1.1, (the "License"); you may not use this file except in
-  compliance with the License. You should have received a copy of the
-  Erlang Public License along with this software. If not, it can be
-  retrieved online at http://www.erlang.org/.
-
-  Software distributed under the License is distributed on an "AS IS"
-  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-  the License for the specific language governing rights and limitations
-  under the License.
-
-  The Initial Developer of the Original Code is Ericsson AB.
-    </legalnotice>
-
-    <title>pg</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <module>pg</module>
-  <modulesummary>Distributed, Named Process Groups</modulesummary>
-  <description>
-    <warning>
-      <p>This module is deprecated and will be removed in Erlang/OTP 18.</p>
-    </warning>
-    <p>This (experimental) module implements process groups. A process
-      group is a group of processes that can be accessed by a common
-      name. For example, a group named <c>foobar</c> can include a set
-      of processes as members of this group and they can be located on
-      different nodes.</p>
-    <p>When messages are sent to the named group, all members of
-      the group receive the message. The messages are serialized. If
-      the process <c>P1</c> sends the message <c>M1</c> to the group,
-      and process <c>P2</c> simultaneously sends message <c>M2</c>, then
-      all members of the group receive the two messages in the same
-      order. If members of a group terminate, they are automatically 
-      removed from the group.</p>
-    <p>This module is not complete. The module is inspired by the ISIS
-      system and the causal order protocol of the ISIS system should 
-      also be implemented. At the moment, all messages are serialized
-      by sending them through a group master process.</p>
-  </description>
-  <funcs>
-    <func>
-      <name name="create" arity="1"/>
-      <fsummary>Create an empty group</fsummary>
-      <desc>
-        <p>Creates an empty group named <c><anno>PgName</anno></c> on the current
-          node.</p>
-      </desc>
-    </func>
-    <func>
-      <name name="create" arity="2"/>
-      <fsummary>Create an empty group on another node</fsummary>
-      <desc>
-        <p>Creates an empty group named <c><anno>PgName</anno></c> on the node
-          <c><anno>Node</anno></c>.</p>
-      </desc>
-    </func>
-    <func>
-      <name name="join" arity="2"/>
-      <fsummary>Join a pid to a process group</fsummary>
-      <desc>
-        <p>Joins the pid <c><anno>Pid</anno></c> to the process group
-          <c><anno>PgName</anno></c>.
-          Returns a list of all old members of the group.</p>
-      </desc>
-    </func>
-    <func>
-      <name name="send" arity="2"/>
-      <fsummary>Send a message to all members of a process group</fsummary>
-      <desc>
-        <p>Sends the tuple <c>{pg_message, From, PgName, Msg}</c> to
-          all members of the process group <c><anno>PgName</anno></c>.</p>
-        <p>Failure: <c>{badarg, {<anno>PgName</anno>, <anno>Msg</anno>}}</c>
-          if <c><anno>PgName</anno></c> is
-          not a process group (a globally registered name).</p>
-      </desc>
-    </func>
-    <func>
-      <name name="esend" arity="2"/>
-      <fsummary>Send a message to all members of a process group, except ourselves</fsummary>
-      <desc>
-        <p>Sends the tuple <c>{pg_message, From, PgName, Msg}</c> to
-          all members of the process group <c><anno>PgName</anno></c>, except
-          ourselves.</p>
-        <p>Failure: <c>{badarg, {<anno>PgName</anno>, <anno>Msg</anno>}}</c>
-          if <c><anno>PgName</anno></c> is
-          not a process group (a globally registered name).</p>
-      </desc>
-    </func>
-    <func>
-      <name name="members" arity="1"/>
-      <fsummary>Return a list of all members of a process group</fsummary>
-      <desc>
-        <p>Returns a list of all members of the process group
-          <c>PgName</c>.</p>
-      </desc>
-    </func>
-  </funcs>
-</erlref>
-
diff --git a/lib/stdlib/doc/src/proc_lib.xml b/lib/stdlib/doc/src/proc_lib.xml
index b0bad9d27b..9a0ff85038 100644
--- a/lib/stdlib/doc/src/proc_lib.xml
+++ b/lib/stdlib/doc/src/proc_lib.xml
@@ -4,7 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>1996</year><year>2013</year>
+      <year>1996</year><year>2014</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -298,6 +298,40 @@ init(Parent) ->
           <c>proc_lib</c> functions.</p>
       </desc>
     </func>
+    <func>
+      <name name="stop" arity="1"/>
+      <fsummary>Terminate a process synchronously.</fsummary>
+      <type variable="Process"/>
+      <desc>
+	<p>Equivalent to <seealso marker="#stop/3">stop(Process,
+	    normal, infinity)</seealso>.</p>
+      </desc>
+    </func>
+    <func>
+      <name name="stop" arity="3"/>
+      <fsummary>Terminate a process synchronously.</fsummary>
+      <type variable="Process"/>
+      <type variable="Reason"/>
+      <type variable="Timeout"/>
+      <desc>
+        <p>Orders the process to exit with the given <c>Reason</c> and
+          waits for it to terminate.</p>
+	<p>The function returns <c>ok</c> if the process exits with
+	  the given <c>Reason</c> within <c>Timeout</c>
+	  milliseconds.</p>
+	<p>If the call times out, a <c>timeout</c> exception is
+	  raised.</p>
+	<p>If the process does not exist, a <c>noproc</c>
+	  exception is raised.</p>
+	<p>The implementation of this function is based on the
+	  <c>terminate</c> system message, and requires that the
+	  process handles system messages  correctly.
+	  See <seealso marker="sys">sys(3)</seealso>
+	  and <seealso marker="doc/design_principles:spec_proc">OTP
+	  Design Principles</seealso> for information about system
+	  messages.</p>
+      </desc>
+    </func>
   </funcs>
 
   <section>
diff --git a/lib/stdlib/doc/src/rand.xml b/lib/stdlib/doc/src/rand.xml
new file mode 100644
index 0000000000..178afda5a0
--- /dev/null
+++ b/lib/stdlib/doc/src/rand.xml
@@ -0,0 +1,246 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!DOCTYPE erlref SYSTEM "erlref.dtd">
+
+<erlref>
+  <header>
+    <copyright>
+      <year>2015</year>
+      <holder>Ericsson AB. All Rights Reserved.</holder>
+    </copyright>
+    <legalnotice>
+      The contents of this file are subject to the Erlang Public License,
+      Version 1.1, (the "License"); you may not use this file except in
+      compliance with the License. You should have received a copy of the
+      Erlang Public License along with this software. If not, it can be
+      retrieved online at http://www.erlang.org/.
+
+      Software distributed under the License is distributed on an "AS IS"
+      basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+      the License for the specific language governing rights and limitations
+      under the License.
+
+    </legalnotice>
+
+    <title>rand</title>
+    <prepared></prepared>
+    <responsible></responsible>
+    <docno>1</docno>
+    <approved></approved>
+    <checked></checked>
+    <date></date>
+    <rev>A</rev>
+    <file>rand.xml</file>
+  </header>
+  <module>rand</module>
+  <modulesummary>Pseudo random number generation</modulesummary>
+  <description>
+    <p>Random number generator.</p>
+
+    <p>The module contains several different algorithms and can be
+    extended with more in the future.  The current uniform
+    distribution algorithms uses the
+    <url href="http://xorshift.di.unimi.it">
+    scrambled Xorshift algorithms by Sebastiano Vigna</url> and the
+    normal distribution algorithm uses the
+    <url href="http://www.jstatsoft.org/v05/i08">
+      Ziggurat Method by Marsaglia and Tsang</url>.
+    </p>
+
+    <p>The implemented algorithms are:</p>
+    <taglist>
+      <tag><c>exsplus</c></tag> <item>Xorshift116+, 58 bits precision and period of 2^116-1.</item>
+      <tag><c>exs64</c></tag> <item>Xorshift64*, 64 bits precision and a period of 2^64-1.</item>
+      <tag><c>exs1024</c></tag> <item>Xorshift1024*, 64 bits precision and a period of 2^1024-1.</item>
+    </taglist>
+
+    <p>The current default algorithm is <c>exsplus</c>. The default
+    may change in future. If a specific algorithm is required make
+    sure to always use <seealso marker="#seed-1">seed/1</seealso>
+    to initialize the state.
+    </p>
+
+    <p>Every time a random number is requested, a state is used to
+    calculate it and a new state produced. The state can either be
+    implicit or it can be an explicit argument and return value.
+    </p>
+
+    <p>The functions with implicit state use the process dictionary
+    variable <c>rand_seed</c> to remember the current state.</p>
+
+    <p>If a process calls <seealso marker="#uniform-0">uniform/0</seealso> or
+    <seealso marker="#uniform-1">uniform/1</seealso> without
+    setting a seed first, <seealso marker="#seed-1">seed/1</seealso>
+    is called automatically with the default algorithm and creates a
+    non-constant seed.</p>
+
+    <p>The functions with explicit state never use the process
+    dictionary.</p>
+
+    <p>Examples:</p>
+    <pre>
+      %% Simple usage. Creates and seeds the default algorithm
+      %% with a non-constant seed if not already done.
+      R0 = rand:uniform(),
+      R1 = rand:uniform(),
+
+      %% Use a given algorithm.
+      _ = rand:seed(exs1024),
+      R2 = rand:uniform(),
+
+      %% Use a given algorithm with a constant seed.
+      _ = rand:seed(exs1024, {123, 123534, 345345}),
+      R3 = rand:uniform(),
+
+      %% Use the functional api with non-constant seed.
+      S0 = rand:seed_s(exsplus),
+      {R4, S1} = rand:uniform_s(S0),
+
+      %% Create a standard normal deviate.
+      {SND0, S2} = rand:normal_s(S1),
+    </pre>
+
+    <note><p>This random number generator is not cryptographically
+    strong. If a strong cryptographic random number generator is
+    needed, use one of functions in the
+    <seealso marker="crypto:crypto">crypto</seealso>
+    module, for example <c>crypto:rand_bytes/1</c>.</p></note>
+  </description>
+  <datatypes>
+    <datatype>
+      <name name="alg"/>
+    </datatype>
+
+    <datatype>
+      <name name="state"/>
+      <desc><p>Algorithm dependent state.</p></desc>
+    </datatype>
+
+    <datatype>
+      <name name="export_state"/>
+      <desc><p>Algorithm dependent state which can be printed or saved to file.</p></desc>
+    </datatype>
+  </datatypes>
+
+  <funcs>
+    <func>
+      <name name="seed" arity="1"/>
+      <fsummary>Seed random number generator</fsummary>
+      <desc>
+	<marker id="seed-1"/>
+	<p>Seeds random number generation with the given algorithm and time dependent
+	data if <anno>AlgOrExpState</anno> is an algorithm.</p>
+	<p>Otherwise recreates the exported seed in the process
+	dictionary, and returns the state.
+	<em>See also:</em> <seealso marker="#export_seed-0">export_seed/0</seealso>.</p>
+      </desc>
+    </func>
+    <func>
+      <name name="seed_s" arity="1"/>
+      <fsummary>Seed random number generator</fsummary>
+      <desc>
+	<p>Seeds random number generation with the given algorithm and time dependent
+	data if <anno>AlgOrExpState</anno> is an algorithm.</p>
+	<p>Otherwise recreates the exported seed and returns the state.
+	<em>See also:</em> <seealso marker="#export_seed-0">export_seed/0</seealso>.</p>
+      </desc>
+    </func>
+    <func>
+      <name name="seed" arity="2"/>
+      <fsummary>Seed the random number generation</fsummary>
+      <desc>
+	<p>Seeds random number generation with the given algorithm and
+	integers in the process dictionary and returns
+	the state.</p>
+      </desc>
+    </func>
+    <func>
+      <name name="seed_s" arity="2"/>
+      <fsummary>Seed the random number generation</fsummary>
+      <desc>
+	<p>Seeds random number generation with the given algorithm and
+	integers and returns the state.</p>
+      </desc>
+    </func>
+
+    <func>
+      <name name="export_seed" arity="0"/>
+      <fsummary>Export the random number generation state</fsummary>
+      <desc><marker id="export_seed-0"/>
+      <p>Returns the random number state in an external format.
+      To be used with <seealso marker="#seed-1">seed/1</seealso>.</p>
+      </desc>
+    </func>
+
+    <func>
+      <name name="export_seed_s" arity="1"/>
+      <fsummary>Export the random number generation state</fsummary>
+      <desc><marker id="export_seed_s-1"/>
+      <p>Returns the random number generator state in an external format.
+      To be used with <seealso marker="#seed-1">seed/1</seealso>.</p>
+      </desc>
+    </func>
+
+    <func>
+      <name name="uniform" arity="0"/>
+      <fsummary>Return a random float</fsummary>
+      <desc>
+	<marker id="uniform-0"/>
+        <p>Returns a random float uniformly distributed in the value
+        range <c>0.0 &lt; <anno>X</anno> &lt; 1.0 </c> and
+        updates the state in the process dictionary.</p>
+      </desc>
+    </func>
+    <func>
+      <name name="uniform_s" arity="1"/>
+      <fsummary>Return a random float</fsummary>
+      <desc>
+        <p>Given a state, <c>uniform_s/1</c> returns a random float
+        uniformly distributed in the value range <c>0.0 &lt;
+        <anno>X</anno> &lt; 1.0</c> and a new state.</p>
+      </desc>
+    </func>
+
+    <func>
+      <name name="uniform" arity="1"/>
+      <fsummary>Return a random integer</fsummary>
+      <desc>
+	<marker id="uniform-1"/>
+        <p>Given an integer <c><anno>N</anno> >= 1</c>,
+        <c>uniform/1</c> returns a random integer uniformly
+        distributed in the value range
+	<c>1 &lt;= <anno>X</anno> &lt;= <anno>N</anno></c> and
+        updates the state in the process dictionary.</p>
+      </desc>
+    </func>
+    <func>
+      <name name="uniform_s" arity="2"/>
+      <fsummary>Return a random integer</fsummary>
+      <desc>
+        <p>Given an integer <c><anno>N</anno> >= 1</c> and a state,
+        <c>uniform_s/2</c> returns a random integer uniformly
+        distributed in the value range <c>1 &lt;= <anno>X</anno> &lt;=
+        <anno>N</anno></c> and a new state.</p>
+      </desc>
+    </func>
+
+    <func>
+      <name name="normal" arity="0"/>
+      <fsummary>Return a standard normal distributed random float</fsummary>
+      <desc>
+        <p>Returns a standard normal deviate float (that is, the mean
+        is 0 and the standard deviation is 1) and updates the state in
+        the process dictionary.</p>
+      </desc>
+    </func>
+    <func>
+      <name name="normal_s" arity="1"/>
+      <fsummary>Return a standard normal distributed random float</fsummary>
+      <desc>
+        <p>Given a state, <c>normal_s/1</c> returns a standard normal
+        deviate float (that is, the mean is 0 and the standard
+        deviation is 1) and a new state.</p>
+      </desc>
+    </func>
+
+  </funcs>
+</erlref>
diff --git a/lib/stdlib/doc/src/random.xml b/lib/stdlib/doc/src/random.xml
index e001058e19..e475cda23d 100644
--- a/lib/stdlib/doc/src/random.xml
+++ b/lib/stdlib/doc/src/random.xml
@@ -48,6 +48,9 @@
     <p>It should be noted that this random number generator is not cryptographically 
       strong. If a strong cryptographic random number generator is needed for
       example <c>crypto:rand_bytes/1</c> could be used instead.</p>
+      <note><p>The new and improved <seealso
+      marker="stdlib:rand">rand</seealso> module should be used
+      instead of this module.</p></note>
   </description>
   <datatypes>
     <datatype>
@@ -70,12 +73,11 @@
       <desc>
         <p>Seeds random number generation with integer values in the process
           dictionary, and returns the old state.</p>
-        <p>One way of obtaining a seed is to use the BIF <c>now/0</c>:</p>
+        <p>One easy way of obtaining a unique value to seed with is to:</p>
         <code type="none">
-          ...
-          {A1,A2,A3} = now(),
-          random:seed(A1, A2, A3),
-          ...</code>
+          random:seed(<seealso marker="erts:erlang#phash2/1">erlang:phash2</seealso>([<seealso marker="erts:erlang#node/0">node()</seealso>]),
+	              <seealso marker="erts:erlang#monotonic_time/0">erlang:monotonic_time()</seealso>,
+		      <seealso marker="erts:erlang#unique_integer/0">erlang:unique_integer()</seealso>)</code>
       </desc>
     </func>
     <func>
diff --git a/lib/stdlib/doc/src/ref_man.xml b/lib/stdlib/doc/src/ref_man.xml
index 6c35578bdf..eee4a68ca1 100644
--- a/lib/stdlib/doc/src/ref_man.xml
+++ b/lib/stdlib/doc/src/ref_man.xml
@@ -4,7 +4,7 @@
 <application xmlns:xi="http://www.w3.org/2001/XInclude">
   <header>
     <copyright>
-      <year>1996</year><year>2013</year>
+      <year>1996</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -45,6 +45,7 @@
   <xi:include href="digraph.xml"/>
   <xi:include href="digraph_utils.xml"/>
   <xi:include href="epp.xml"/>
+  <xi:include href="erl_anno.xml"/>
   <xi:include href="erl_eval.xml"/>
   <xi:include href="erl_expand_records.xml"/>
   <xi:include href="erl_id_trans.xml"/>
@@ -73,12 +74,12 @@
   <xi:include href="ms_transform.xml"/>
   <xi:include href="orddict.xml"/>
   <xi:include href="ordsets.xml"/>
-  <xi:include href="pg.xml"/>
   <xi:include href="pool.xml"/>
   <xi:include href="proc_lib.xml"/>
   <xi:include href="proplists.xml"/>
   <xi:include href="qlc.xml"/>
   <xi:include href="queue.xml"/>
+  <xi:include href="rand.xml"/>
   <xi:include href="random.xml"/>
   <xi:include href="re.xml"/>
   <xi:include href="sets.xml"/>
diff --git a/lib/stdlib/doc/src/sets.xml b/lib/stdlib/doc/src/sets.xml
index c5b8dce4b7..4a31648f8f 100644
--- a/lib/stdlib/doc/src/sets.xml
+++ b/lib/stdlib/doc/src/sets.xml
@@ -4,7 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>2000</year><year>2014</year>
+      <year>2000</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -65,7 +65,7 @@
     </func>
     <func>
       <name name="is_set" arity="1"/>
-      <fsummary>Test for an <c>Set</c></fsummary>
+      <fsummary>Test for a <c>Set</c></fsummary>
       <desc>
         <p>Returns <c>true</c> if <c><anno>Set</anno></c> is a set of
           elements, otherwise <c>false</c>.</p>
@@ -80,21 +80,22 @@
     </func>
     <func>
       <name name="to_list" arity="1"/>
-      <fsummary>Convert an <c>Set</c>into a list</fsummary>
+      <fsummary>Convert a <c>Set</c>into a list</fsummary>
       <desc>
-        <p>Returns the elements of <c><anno>Set</anno></c> as a list.</p>
+        <p>Returns the elements of <c><anno>Set</anno></c> as a list.
+          The order of the returned elements is undefined.</p>
       </desc>
     </func>
     <func>
       <name name="from_list" arity="1"/>
-      <fsummary>Convert a list into an <c>Set</c></fsummary>
+      <fsummary>Convert a list into a <c>Set</c></fsummary>
       <desc>
-        <p>Returns an set of the elements in <c><anno>List</anno></c>.</p>
+        <p>Returns a set of the elements in <c><anno>List</anno></c>.</p>
       </desc>
     </func>
     <func>
       <name name="is_element" arity="2"/>
-      <fsummary>Test for membership of an <c>Set</c></fsummary>
+      <fsummary>Test for membership of a <c>Set</c></fsummary>
       <desc>
         <p>Returns <c>true</c> if <c><anno>Element</anno></c> is an element of
           <c><anno>Set</anno></c>, otherwise <c>false</c>.</p>
@@ -102,7 +103,7 @@
     </func>
     <func>
       <name name="add_element" arity="2"/>
-      <fsummary>Add an element to an <c>Set</c></fsummary>
+      <fsummary>Add an element to a <c>Set</c></fsummary>
       <desc>
         <p>Returns a new set formed from <c><anno>Set1</anno></c> with
           <c><anno>Element</anno></c> inserted.</p>
@@ -110,7 +111,7 @@
     </func>
     <func>
       <name name="del_element" arity="2"/>
-      <fsummary>Remove an element from an <c>Set</c></fsummary>
+      <fsummary>Remove an element from a <c>Set</c></fsummary>
       <desc>
         <p>Returns <c><anno>Set1</anno></c>, but with <c><anno>Element</anno></c> removed.</p>
       </desc>
@@ -175,7 +176,8 @@
       <fsummary>Fold over set elements</fsummary>
       <desc>
         <p>Fold <c><anno>Function</anno></c> over every element in <c><anno>Set</anno></c>
-          returning the final value of the accumulator.</p>
+          returning the final value of the accumulator.
+          The evaluation order is undefined.</p>
       </desc>
     </func>
     <func>
diff --git a/lib/stdlib/doc/src/specs.xml b/lib/stdlib/doc/src/specs.xml
index 60a04ed5e7..0418bf7b22 100644
--- a/lib/stdlib/doc/src/specs.xml
+++ b/lib/stdlib/doc/src/specs.xml
@@ -11,6 +11,7 @@
   <xi:include href="../specs/specs_digraph.xml"/>
   <xi:include href="../specs/specs_digraph_utils.xml"/>
   <xi:include href="../specs/specs_epp.xml"/>
+  <xi:include href="../specs/specs_erl_anno.xml"/>
   <xi:include href="../specs/specs_erl_eval.xml"/>
   <xi:include href="../specs/specs_erl_expand_records.xml"/>
   <xi:include href="../specs/specs_erl_id_trans.xml"/>
@@ -39,12 +40,12 @@
   <xi:include href="../specs/specs_ms_transform.xml"/>
   <xi:include href="../specs/specs_orddict.xml"/>
   <xi:include href="../specs/specs_ordsets.xml"/>
-  <xi:include href="../specs/specs_pg.xml"/>
   <xi:include href="../specs/specs_pool.xml"/>
   <xi:include href="../specs/specs_proc_lib.xml"/>
   <xi:include href="../specs/specs_proplists.xml"/>
   <xi:include href="../specs/specs_qlc.xml"/>
   <xi:include href="../specs/specs_queue.xml"/>
+  <xi:include href="../specs/specs_rand.xml"/>
   <xi:include href="../specs/specs_random.xml"/>
   <xi:include href="../specs/specs_re.xml"/>
   <xi:include href="../specs/specs_sets.xml"/>
diff --git a/lib/stdlib/doc/src/supervisor.xml b/lib/stdlib/doc/src/supervisor.xml
index 3a5027d595..6ff477a42d 100644
--- a/lib/stdlib/doc/src/supervisor.xml
+++ b/lib/stdlib/doc/src/supervisor.xml
@@ -37,12 +37,12 @@
       the <c>gen_event</c>, <c>gen_fsm</c>, or <c>gen_server</c>
       behaviours. A supervisor implemented using this module will have
       a standard set of interface functions and include functionality
-      for tracing and error reporting. Supervisors are used to build an
+      for tracing and error reporting. Supervisors are used to build a
       hierarchical process structure called a supervision tree, a
       nice way to structure a fault tolerant application. Refer to
       <em>OTP Design Principles</em> for more information.</p>
-    <p>A supervisor assumes the definition of which child processes to
-      supervise to be located in a callback module exporting a
+    <p>A supervisor expects the definition of which child processes to
+      supervise to be specified in a callback module exporting a
       pre-defined set of functions.</p>
     <p>Unless otherwise stated, all functions in this module will fail
       if the specified supervisor does not exist or if bad arguments
@@ -53,18 +53,30 @@
     <title>Supervision Principles</title>
     <p>The supervisor is responsible for starting, stopping and
       monitoring its child processes. The basic idea of a supervisor is
-      that it should keep its child processes alive by restarting them
+      that it shall keep its child processes alive by restarting them
       when necessary.</p>
-    <p>The children of a supervisor is defined as a list of
+    <p>The children of a supervisor are defined as a list of
       <em>child specifications</em>. When the supervisor is started, the child
       processes are started in order from left to right according to
       this list. When the supervisor terminates, it first terminates
       its child processes in reversed start order, from right to left.</p>
-    <p>A supervisor can have one of the following <em>restart strategies</em>:</p>
+    <marker id="sup_flags"/>
+    <p>The properties of a supervisor are defined by the supervisor
+      flags. This is the type definition for the supervisor flags:
+    </p>
+    <pre>sup_flags() = #{strategy => strategy(),         % optional
+                intensity => non_neg_integer(), % optional
+                period => pos_integer()}        % optional
+      </pre>
+    <p>A supervisor can have one of the following <em>restart
+	strategies</em>, specified with the <c>strategy</c> key in the
+      above map:
+    </p>
     <list type="bulleted">
       <item>
         <p><c>one_for_one</c> - if one child process terminates and
-          should be restarted, only that child process is affected.</p>
+          should be restarted, only that child process is
+          affected. This is the default restart strategy.</p>
       </item>
       <item>
         <p><c>one_for_all</c> - if one child process terminates and
@@ -94,43 +106,53 @@
           instead the child specification identifier is used,
           <c>terminate_child/2</c> will return
           <c>{error,simple_one_for_one}</c>.</p>
-        <p>Because a <c>simple_one_for_one</c> supervisor could have many
-        children, it shuts them all down at same time. So, order in which they
-        are stopped is not defined. For the same reason, it could have an
-        overhead with regards to the <c>Shutdown</c> strategy.</p>
+        <p>Because a <c>simple_one_for_one</c> supervisor could have
+          many children, it shuts them all down asynchronously. This
+          means that the children will do their cleanup in parallel,
+          and therefore the order in which they are stopped is not
+          defined.</p>
       </item>
     </list>
     <p>To prevent a supervisor from getting into an infinite loop of
-      child process terminations and restarts, a <em>maximum restart frequency</em>
-      is defined using two integer values <c>MaxR</c>
-      and <c>MaxT</c>. If more than <c>MaxR</c> restarts occur within
-      <c>MaxT</c> seconds, the supervisor terminates all child
-      processes and then itself.
+      child process terminations and restarts, a <em>maximum restart
+      intensity</em> is defined using two integer values specified
+      with the <c>intensity</c> and <c>period</c> keys in the above
+      map. Assuming the values <c>MaxR</c> for <c>intensity</c>
+      and <c>MaxT</c> for <c>period</c>, then if more than <c>MaxR</c>
+      restarts occur within <c>MaxT</c> seconds, the supervisor will
+      terminate all child processes and then itself. The default value
+      for <c>intensity</c> is <c>1</c>, and the default value
+      for <c>period</c> is <c>5</c>.
     </p>
     <marker id="child_spec"/>
     <p>This is the type definition of a child specification:</p>
-    <pre>
-child_spec() = {Id,StartFunc,Restart,Shutdown,Type,Modules}
- Id = term()
- StartFunc = {M,F,A}
-  M = F = atom()
-  A = [term()]
- Restart = permanent | transient | temporary
- Shutdown = brutal_kill | int()>0 | infinity
- Type = worker | supervisor
- Modules = [Module] | dynamic
-  Module = atom()</pre>
+    <pre>child_spec() = #{id => child_id(),       % mandatory
+                 start => mfargs(),      % mandatory
+                 restart => restart(),   % optional
+                 shutdown => shutdown(), % optional
+                 type => worker(),       % optional
+                 modules => modules()}   % optional</pre>
+    <p>The old tuple format is kept for backwards compatibility,
+      see <seealso marker="#type-child_spec">child_spec()</seealso>,
+      but the map is preferred.
+    </p>
     <list type="bulleted">
       <item>
-        <p><c>Id</c> is a name that is used to identify the child
+        <p><c>id</c> is used to identify the child
           specification internally by the supervisor.</p>
+	<p>The <c>id</c> key is mandatory.</p>
+	<p>Note that this identifier on occations has been called
+	  "name". As far as possible, the terms "identifier" or "id"
+	  are now used but in order to keep backwards compatibility,
+	  some occurences of "name" can still be found, for example
+	  in error messages.</p>
       </item>
       <item>
-        <p><c>StartFunc</c> defines the function call used to start
-          the child process. It should be a module-function-arguments
+        <p><c>start</c> defines the function call used to start the
+          child process. It must be a module-function-arguments
           tuple <c>{M,F,A}</c> used as <c>apply(M,F,A)</c>.</p>
         <p>The start function <em>must create and link to</em> the child
-          process, and should return <c>{ok,Child}</c> or
+          process, and must return <c>{ok,Child}</c> or
           <c>{ok,Child,Info}</c> where <c>Child</c> is the pid of
           the child process and <c>Info</c> an arbitrary term which is
           ignored by the supervisor.</p>
@@ -143,20 +165,23 @@ child_spec() = {Id,StartFunc,Restart,Shutdown,Type,Modules}
           error tuple <c>{error,Error}</c>.</p>
         <p>Note that the <c>start_link</c> functions of the different
           behaviour modules fulfill the above requirements.</p>
+	<p>The <c>start</c> key is mandatory.</p>
       </item>
       <item>
-        <p><c>Restart</c> defines when a terminated child process
-          should be restarted. A <c>permanent</c> child process should
-          always be restarted, a <c>temporary</c> child process should
+        <p><c>restart</c> defines when a terminated child process
+          shall be restarted. A <c>permanent</c> child process will
+          always be restarted, a <c>temporary</c> child process will
           never be restarted (even when the supervisor's restart strategy
           is <c>rest_for_one</c> or <c>one_for_all</c> and a sibling's
           death causes the temporary process to be terminated) and a
-          <c>transient</c> child process should be restarted only if
+          <c>transient</c> child process will be restarted only if
           it terminates abnormally, i.e. with another exit reason
           than <c>normal</c>, <c>shutdown</c> or <c>{shutdown,Term}</c>.</p>
+	<p>The <c>restart</c> key is optional. If it is not given, the
+	  default value <c>permanent</c> will be used.</p>
       </item>
       <item>
-        <p><c>Shutdown</c> defines how a child process should be
+        <p><c>shutdown</c> defines how a child process shall be
           terminated. <c>brutal_kill</c> means the child process will
           be unconditionally terminated using <c>exit(Child,kill)</c>.
           An integer timeout value means that the supervisor will tell
@@ -166,35 +191,45 @@ child_spec() = {Id,StartFunc,Restart,Shutdown,Type,Modules}
           no exit signal is received within the specified number of milliseconds,
           the child process is unconditionally terminated using
           <c>exit(Child,kill)</c>.</p>
-        <p>If the child process is another supervisor, <c>Shutdown</c>
+        <p>If the child process is another supervisor, the shutdown time
           should be set to <c>infinity</c> to give the subtree ample
-          time to shutdown. It is also allowed to set it to <c>infinity</c>,
+          time to shut down. It is also allowed to set it to <c>infinity</c>,
           if the child process is a worker.</p>
         <warning>
-          <p>Be careful by setting the <c>Shutdown</c> strategy to
+          <p>Be careful when setting the shutdown time to
           <c>infinity</c> when the child process is a worker. Because, in this
           situation, the termination of the supervision tree depends on the
           child process, it must be implemented in a safe way and its cleanup
           procedure must always return.</p>
         </warning>
         <p>Note that all child processes implemented using the standard
-          OTP behavior modules automatically adhere to the shutdown
+          OTP behaviour modules automatically adhere to the shutdown
           protocol.</p>
+	<p>The <c>shutdown</c> key is optional. If it is not given,
+	  the default value <c>5000</c> will be used if the child is
+	  of type <c>worker</c>; and <c>infinity</c> will be used if
+	  the child is of type <c>supervisor</c>.</p>
       </item>
       <item>
-        <p><c>Type</c> specifies if the child process is a supervisor or
+        <p><c>type</c> specifies if the child process is a supervisor or
           a worker.</p>
+	<p>The <c>type</c> key is optional. If it is not given, the
+	  default value <c>worker</c> will be used.</p>
       </item>
       <item>
-        <p><c>Modules</c> is used by the release handler during code
+        <p><c>modules</c> is used by the release handler during code
           replacement to determine which processes are using a certain
-          module. As a rule of thumb <c>Modules</c> should be a list
-          with one element <c>[Module]</c>, where <c>Module</c> is
-          the callback module, if the child process is a supervisor,
-          gen_server or gen_fsm. If the child process is an event
-          manager (gen_event) with a dynamic set of callback modules,
-          <c>Modules</c> should be <c>dynamic</c>. See <em>OTP Design Principles</em>
-          for more information about release handling.</p>
+          module. As a rule of thumb, if the child process is a
+          <c>supervisor</c>, <c>gen_server</c>, or <c>gen_fsm</c>,
+	  this should be a list with one element <c>[Module]</c>,
+	  where <c>Module</c> is the callback module. If the child
+	  process is an event manager (<c>gen_event</c>) with a
+	  dynamic set of callback modules, the value <c>dynamic</c>
+	  shall be used. See <em>OTP Design Principles</em> for more
+	  information about release handling.</p>
+	<p>The <c>modules</c> key is optional. If it is not given, it
+	  defaults to <c>[M]</c>, where <c>M</c> comes from the
+	  child's start <c>{M,F,A}</c></p>
       </item>
       <item>
         <p>Internally, the supervisor also keeps track of the pid
@@ -213,11 +248,20 @@ child_spec() = {Id,StartFunc,Restart,Shutdown,Type,Modules}
     </datatype>
     <datatype>
       <name name="child_spec"/>
+      <desc><p>The tuple format is kept for backwards compatibility
+	 only. A map is preferred; see more details
+	 <seealso marker="#child_spec">above</seealso>.</p></desc>
     </datatype>
     <datatype>
       <name name="mfargs"/>
-      <desc><p><c>A</c> (the argument list) has the value
-         <c>undefined</c> if <c>Restart</c> is <c>temporary</c>.</p>
+      <desc>
+	<p>The value <c>undefined</c> for <c><anno>A</anno></c> (the
+	  argument list) is only to be used internally
+	  in <c>supervisor</c>. If the restart type of the child
+	  is <c>temporary</c>, then the process is never to be
+	  restarted and therefore there is no need to store the real
+	  argument list. The value <c>undefined</c> will then be
+	  stored instead.</p>
       </desc>
     </datatype>
     <datatype>
@@ -233,6 +277,12 @@ child_spec() = {Id,StartFunc,Restart,Shutdown,Type,Modules}
       <name name="strategy"/>
     </datatype>
     <datatype>
+      <name name="sup_flags"/>
+      <desc><p>The tuple format is kept for backwards compatibility
+	 only. A map is preferred; see more details
+	 <seealso marker="#sup_flags">above</seealso>.</p></desc>
+    </datatype>
+    <datatype>
       <name name="sup_ref"/>
     </datatype>
     <datatype>
@@ -253,20 +303,20 @@ child_spec() = {Id,StartFunc,Restart,Shutdown,Type,Modules}
           the supervisor is linked to the calling process (its
           supervisor).</p>
         <p>The created supervisor process calls <c><anno>Module</anno>:init/1</c> to
-          find out about restart strategy, maximum restart frequency
+          find out about restart strategy, maximum restart intensity
           and child processes. To ensure a synchronized start-up
           procedure, <c>start_link/2,3</c> does not return until
           <c><anno>Module</anno>:init/1</c> has returned and all child processes
           have been started.</p>
-        <p>If <c><anno>SupName</anno>={local,Name}</c> the supervisor is registered
+        <p>If <c><anno>SupName</anno>={local,Name}</c>, the supervisor is registered
           locally as <c>Name</c> using <c>register/2</c>. If
           <c><anno>SupName</anno>={global,Name}</c> the supervisor is registered
           globally as <c>Name</c> using <c>global:register_name/2</c>. If
           <c><anno>SupName</anno>={via,<anno>Module</anno>,<anno>Name</anno>}</c> the supervisor
 	  is registered as <c>Name</c> using the registry represented by
-	  <c>Module</c>. The <c>Module</c> callback should export the functions
+	  <c>Module</c>. The <c>Module</c> callback must export the functions
 	  <c>register_name/2</c>, <c>unregister_name/1</c> and <c>send/2</c>,
-	  which should behave like the corresponding functions in <c>global</c>.
+	  which shall behave like the corresponding functions in <c>global</c>.
 	  Thus, <c>{via,global,<anno>Name</anno>}</c> is a valid reference.</p>
           <p>If no name is provided, the supervisor is not registered.</p>
         <p><c><anno>Module</anno></c> is the name of the callback module.</p>
@@ -274,14 +324,14 @@ child_spec() = {Id,StartFunc,Restart,Shutdown,Type,Modules}
           the argument to <c><anno>Module</anno>:init/1</c>.</p>
         <p>If the supervisor and its child processes are successfully
           created (i.e. if all child process start functions return
-          <c>{ok,Child}</c>, <c>{ok,Child,Info}</c>, or <c>ignore</c>)
+          <c>{ok,Child}</c>, <c>{ok,Child,Info}</c>, or <c>ignore</c>),
           the function returns <c>{ok,Pid}</c>, where <c>Pid</c> is
           the pid of the supervisor. If there already exists a process
-          with the specified <c><anno>SupName</anno></c> the function returns
+          with the specified <c><anno>SupName</anno></c>, the function returns
           <c>{error,{already_started,Pid}}</c>, where <c>Pid</c> is
           the pid of that process.</p>
         <p>If <c><anno>Module</anno>:init/1</c> returns <c>ignore</c>, this function
-          returns <c>ignore</c> as well and the supervisor terminates
+          returns <c>ignore</c> as well, and the supervisor terminates
           with reason <c>normal</c>.
           If <c><anno>Module</anno>:init/1</c> fails or returns an incorrect value,
           this function returns <c>{error,Term}</c> where <c>Term</c>
@@ -297,7 +347,6 @@ child_spec() = {Id,StartFunc,Restart,Shutdown,Type,Modules}
     <func>
       <name name="start_child" arity="2"/>
       <fsummary>Dynamically add a child process to a supervisor.</fsummary>
-      <type name="child_spec"/>
       <type name="startchild_ret"/>
       <type name="startchild_err"/>
       <desc>
@@ -314,35 +363,41 @@ child_spec() = {Id,StartFunc,Restart,Shutdown,Type,Modules}
           <item><c>{via,Module,Name}</c>, if the supervisor is registered
 	  through an alternative process registry.</item>
         </list>
-        <p><c><anno>ChildSpec</anno></c> should be a valid child specification
+        <p><c><anno>ChildSpec</anno></c> must be a valid child specification
           (unless the supervisor is a <c>simple_one_for_one</c>
-          supervisor, see below). The child process will be started by
+          supervisor; see below). The child process will be started by
           using the start function as defined in the child
           specification.</p>
-        <p>If the case of a <c>simple_one_for_one</c> supervisor,
+        <p>In the case of a <c>simple_one_for_one</c> supervisor,
           the child specification defined in <c>Module:init/1</c> will
-          be used and <c><anno>ChildSpec</anno></c> should instead be an arbitrary
+          be used, and <c><anno>ChildSpec</anno></c> shall instead be an arbitrary
           list of terms <c><anno>List</anno></c>. The child process will then be
           started by appending <c><anno>List</anno></c> to the existing start
           function arguments, i.e. by calling
           <c>apply(M, F, A++<anno>List</anno>)</c> where <c>{M,F,A}</c> is the start
           function defined in the child specification.</p>
         <p>If there already exists a child specification with
-          the specified <c><anno>Id</anno></c>, <c><anno>ChildSpec</anno></c> is discarded and
+          the specified identifier, <c><anno>ChildSpec</anno></c> is discarded, and
           the function returns <c>{error,already_present}</c> or
           <c>{error,{already_started,<anno>Child</anno>}}</c>, depending on if
           the corresponding child process is running or not.</p>
         <p>If the child process start function returns <c>{ok,<anno>Child</anno>}</c>
-          or <c>{ok,<anno>Child</anno>,<anno>Info</anno>}</c>, the child specification and pid is
+          or <c>{ok,<anno>Child</anno>,<anno>Info</anno>}</c>, the child specification and pid are
           added to the supervisor and the function returns the same
           value.</p>
         <p>If the child process start function returns <c>ignore</c>,
-          the child specification is added to the supervisor, the pid
-          is set to <c>undefined</c> and the function returns
-          <c>{ok,undefined}</c>.</p>
+          the child specification is added to the supervisor (unless the
+          supervisor is a <c>simple_one_for_one</c> supervisor, see below),
+          the pid is set to <c>undefined</c> and the function returns
+          <c>{ok,undefined}</c>.
+        </p>
+        <p>In the case of a <c>simple_one_for_one</c> supervisor, when a child
+          process start function returns <c>ignore</c> the functions returns
+          <c>{ok,undefined}</c> and no child is added to the supervisor.
+        </p>
         <p>If the child process start function returns an error tuple or
           an erroneous value, or if it fails, the child specification is
-          discarded and the function returns <c>{error,Error}</c> where
+          discarded, and the function returns <c>{error,Error}</c> where
           <c>Error</c> is a term containing information about the error
           and child specification.</p>
       </desc>
@@ -366,7 +421,7 @@ child_spec() = {Id,StartFunc,Restart,Shutdown,Type,Modules}
 
 	<p>If the child is temporary, the child specification is deleted as
 	  soon as the process terminates. This means
-	  that <c>delete_child/2</c> has no meaning
+	  that <c>delete_child/2</c> has no meaning,
 	  and <c>restart_child/2</c> can not be used for these
 	  children.</p>
 
@@ -375,13 +430,13 @@ child_spec() = {Id,StartFunc,Restart,Shutdown,Type,Modules}
           process is alive, but is not a child of the given
           supervisor, the function will return
           <c>{error,not_found}</c>. If the child specification
-          identifier is given instead instead of a <c>pid()</c>, the
+          identifier is given instead of a <c>pid()</c>, the
           function will return <c>{error,simple_one_for_one}</c>.</p>
         <p>If successful, the function returns <c>ok</c>. If there is
           no child specification with the specified <c><anno>Id</anno></c>, the
           function returns <c>{error,not_found}</c>.</p>
-        <p>See <c>start_child/2</c> for a description of
-          <c><anno>SupRef</anno></c>.</p>
+        <p>See <seealso marker="#SupRef"><c>start_child/2</c></seealso>
+          for a description of <c><anno>SupRef</anno></c>.</p>
       </desc>
     </func>
     <func>
@@ -390,15 +445,15 @@ child_spec() = {Id,StartFunc,Restart,Shutdown,Type,Modules}
       <desc>
         <p>Tells the supervisor <c><anno>SupRef</anno></c> to delete the child
           specification identified by <c><anno>Id</anno></c>. The corresponding child
-          process must not be running, use <c>terminate_child/2</c> to
+          process must not be running. Use <c>terminate_child/2</c> to
           terminate it.</p>
-        <p>See <seealso marker="#SupRef"><c>start_child/2</c></seealso> for a description of
-          <c>SupRef</c>.</p>
+        <p>See <seealso marker="#SupRef"><c>start_child/2</c></seealso>
+          for a description of <c><anno>SupRef</anno></c>.</p>
         <p>If successful, the function returns <c>ok</c>. If the child
           specification identified by <c><anno>Id</anno></c> exists but
           the corresponding child process is running or about to be restarted,
 	  the function returns <c>{error,running}</c> or
-	  <c>{error,restarting}</c> respectively. If the child specification
+	  <c>{error,restarting}</c>, respectively. If the child specification
           identified by <c><anno>Id</anno></c> does not exist, the function
 	  returns <c>{error,not_found}</c>.</p>
       </desc>
@@ -410,10 +465,10 @@ child_spec() = {Id,StartFunc,Restart,Shutdown,Type,Modules}
         <p>Tells the supervisor <c><anno>SupRef</anno></c> to restart
           a child process corresponding to the child specification
           identified by <c><anno>Id</anno></c>. The child
-          specification must exist and the corresponding child process
+          specification must exist, and the corresponding child process
           must not be running.</p>
 	<p>Note that for temporary children, the child specification
-	  is automatically deleted when the child terminates, and thus
+	  is automatically deleted when the child terminates; thus
 	  it is not possible to restart such children.</p>
         <p>See <seealso marker="#SupRef"><c>start_child/2</c></seealso>
           for a description of <c>SupRef</c>.</p>
@@ -429,7 +484,7 @@ child_spec() = {Id,StartFunc,Restart,Shutdown,Type,Modules}
           is added to the supervisor and the function returns the same
           value.</p>
         <p>If the child process start function returns <c>ignore</c>,
-          the pid remains set to <c>undefined</c> and the function
+          the pid remains set to <c>undefined</c>, and the function
           returns <c>{ok,undefined}</c>.</p>
         <p>If the child process start function returns an error tuple
           or an erroneous value, or if it fails, the function returns
@@ -462,7 +517,7 @@ child_spec() = {Id,StartFunc,Restart,Shutdown,Type,Modules}
           <item>
             <p><c><anno>Child</anno></c> - the pid of the corresponding child
               process, the atom <c>restarting</c> if the process is about to be
-	      restarted or <c>undefined</c> if there is no such process.</p>
+	      restarted, or <c>undefined</c> if there is no such process.</p>
           </item>
           <item>
             <p><c><anno>Type</anno></c> - as defined in the child specification.</p>
@@ -475,8 +530,8 @@ child_spec() = {Id,StartFunc,Restart,Shutdown,Type,Modules}
     </func>
     <func>
       <name name="count_children" arity="1"/>
-      <fsummary>Return counts for the number of childspecs, active children,
-        supervisors and workers.</fsummary>
+      <fsummary>Return counts for the number of child specifications,
+        active children, supervisors, and workers.</fsummary>
       <desc>
         <p>Returns a property list (see <c>proplists</c>) containing the
           counts for each of the following elements of the supervisor's
@@ -500,6 +555,8 @@ child_spec() = {Id,StartFunc,Restart,Shutdown,Type,Modules}
               process is still alive.</p>
           </item>
         </list>
+        <p>See <seealso marker="#SupRef"><c>start_child/2</c></seealso>
+          for a description of <c><anno>SupRef</anno></c>.</p>
       </desc>
     </func>
     <func>
@@ -511,11 +568,23 @@ child_spec() = {Id,StartFunc,Restart,Shutdown,Type,Modules}
           correct, or <c>{error,<anno>Error</anno>}</c> otherwise.</p>
       </desc>
     </func>
+    <func>
+      <name name="get_childspec" arity="2"/>
+      <fsummary>Return the child specification map for the given
+	child.</fsummary>
+      <desc>
+        <p>Returns the child specification map for the child identified
+          by <c>Id</c> under supervisor <c>SupRef</c>. The returned
+          map contains all keys, both mandatory and optional.</p>
+        <p>See <seealso marker="#SupRef"><c>start_child/2</c></seealso>
+          for a description of <c><anno>SupRef</anno></c>.</p>
+      </desc>
+    </func>
   </funcs>
 
   <section>
     <title>CALLBACK FUNCTIONS</title>
-    <p>The following functions should be exported from a
+    <p>The following functions must be exported from a
       <c>supervisor</c> callback module.</p>
   </section>
   <funcs>
@@ -524,33 +593,37 @@ child_spec() = {Id,StartFunc,Restart,Shutdown,Type,Modules}
       <fsummary>Return a supervisor specification.</fsummary>
       <type>
         <v>Args = term()</v>
-        <v>Result = {ok,{{RestartStrategy,MaxR,MaxT},[ChildSpec]}} | ignore</v>
-        <v>&nbsp;RestartStrategy = <seealso marker="#type-strategy">strategy()</seealso></v>
-        <v>&nbsp;MaxR = integer()>=0</v>
-        <v>&nbsp;MaxT = integer()>0</v>
+        <v>Result = {ok,{SupFlags,[ChildSpec]}} | ignore</v>
+        <v>&nbsp;SupFlags = <seealso marker="#type-sup_flags">sup_flags()</seealso></v>
         <v>&nbsp;ChildSpec = <seealso marker="#type-child_spec">child_spec()</seealso></v>
       </type>
       <desc>
         <p>Whenever a supervisor is started using
           <c>supervisor:start_link/2,3</c>, this function is called by
           the new process to find out about restart strategy, maximum
-          restart frequency and child specifications.</p>
+          restart intensity, and child specifications.</p>
         <p><c>Args</c> is the <c>Args</c> argument provided to the start
           function.</p>
-        <p><c>RestartStrategy</c> is the restart strategy and
-          <c>MaxR</c> and <c>MaxT</c> defines the maximum restart
-          frequency of the supervisor. <c>[ChildSpec]</c> is a list of
-          valid child specifications defining which child processes
-          the supervisor should start and monitor. See the discussion
-          about Supervision Principles above.</p>
+        <p><c>SupFlags</c> is the supervisor flags defining the
+          restart strategy and max restart intensity for the
+          supervisor. <c>[ChildSpec]</c> is a list of valid child
+          specifications defining which child processes the supervisor
+          shall start and monitor. See the discussion about
+          Supervision Principles above.</p>
         <p>Note that when the restart strategy is
           <c>simple_one_for_one</c>, the list of child specifications
           must be a list with one child specification only.
-          (The <c>Id</c> is ignored). No child process is then started
+          (The child specification identifier is ignored.) No child process is then started
           during the initialization phase, but all children are assumed
           to be started dynamically using
           <c>supervisor:start_child/2</c>.</p>
         <p>The function may also return <c>ignore</c>.</p>
+	<p>Note that this function might also be called as a part of a
+	  code upgrade procedure. For this reason, the function should
+	  not have any side effects. See
+	  <seealso marker="doc/design_principles:appup_cookbook#sup">Design
+	  Principles</seealso> for more information about code upgrade
+	  of supervisors.</p>
       </desc>
     </func>
   </funcs>
diff --git a/lib/stdlib/doc/src/sys.xml b/lib/stdlib/doc/src/sys.xml
index 19605f325b..cf7df54d1d 100644
--- a/lib/stdlib/doc/src/sys.xml
+++ b/lib/stdlib/doc/src/sys.xml
@@ -359,6 +359,17 @@
           installed.</p>
       </desc>
     </func>
+    <func>
+      <name name="terminate" arity="2"/>
+      <name name="terminate" arity="3"/>
+      <fsummary>Terminate the process</fsummary>
+      <desc>
+        <p>This function orders the process to terminate with the
+        given <c><anno>Reason</anno></c>. The termination is done
+        asynchronously, so there is no guarantee that the process is
+        actually terminated when the function returns.</p>
+      </desc>
+    </func>
   </funcs>
 
   <section>
diff --git a/lib/stdlib/doc/src/timer.xml b/lib/stdlib/doc/src/timer.xml
index eca9a72d36..791a29689e 100644
--- a/lib/stdlib/doc/src/timer.xml
+++ b/lib/stdlib/doc/src/timer.xml
@@ -217,12 +217,14 @@
     </func>
     <func>
       <name name="now_diff" arity="2"/>
-      <fsummary>Calculate time difference between <c>now/0</c>timestamps</fsummary>
+      <fsummary>Calculate time difference between timestamps</fsummary>
       <type_desc variable="Tdiff">In microseconds</type_desc>
       <desc>
         <p>Calculates the time difference <c><anno>Tdiff</anno> = <anno>T2</anno> - <anno>T1</anno></c> in
-          <em>microseconds</em>, where <c><anno>T1</anno></c> and <c><anno>T2</anno></c> probably
-          are timestamp tuples returned from <c>erlang:now/0</c>.</p>
+        <em>microseconds</em>, where <c><anno>T1</anno></c> and <c><anno>T2</anno></c>
+        are timestamp tuples on the same format as returned from
+	<seealso marker="erts:erlang#timestamp/0"><c>erlang:timestamp/0</c></seealso>,
+	or <seealso marker="kernel:os#timestamp/0"><c>os:timestamp/0</c></seealso>.</p>
       </desc>
     </func>
     <func>
@@ -234,7 +236,7 @@
     </func>
     <func>
       <name name="minutes" arity="1"/>
-      <fsummary>Converts <c>Minutes</c>to <c>Milliseconds</c>.</fsummary>
+      <fsummary>Converts <c>Minutes</c> to <c>Milliseconds</c>.</fsummary>
       <desc>
         <p>Return the number of milliseconds in <c><anno>Minutes</anno></c>.</p>
       </desc>
diff --git a/lib/stdlib/doc/src/zip.xml b/lib/stdlib/doc/src/zip.xml
index 48b376743d..d201e81a79 100644
--- a/lib/stdlib/doc/src/zip.xml
+++ b/lib/stdlib/doc/src/zip.xml
@@ -135,6 +135,12 @@
         <p>These options are described in <seealso marker="#zip_options">create/3</seealso>.</p>
       </desc>
     </datatype>
+    <datatype>
+      <name name="handle"/>                                                                          
+      <desc>
+        <p>As returned by <seealso marker="#zip_open/2">zip_open/2</seealso>.</p>                     
+      </desc>                                                        
+    </datatype>
   </datatypes>
   <funcs>
     <func>
@@ -430,6 +436,8 @@
           means that subsequently reading files from the archive will be
           faster than unzipping files one at a time with <c>unzip</c>.</p>
         <p>The archive must be closed with <c>zip_close/1</c>.</p>
+        <p>The <c><anno>ZipHandle</anno></c> will be closed if the
+          process which originally opened the archive dies.</p>
       </desc>
     </func>
     <func>
diff --git a/lib/stdlib/src/Makefile b/lib/stdlib/src/Makefile
index 9ab2cd4134..55bda60da5 100644
--- a/lib/stdlib/src/Makefile
+++ b/lib/stdlib/src/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 1996-2013. All Rights Reserved.
+# Copyright Ericsson AB 1996-2015. All Rights Reserved.
 #
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
@@ -58,6 +58,7 @@ MODULES= \
 	edlin \
 	edlin_expand \
 	epp \
+	erl_anno \
 	erl_bits \
 	erl_compile \
 	erl_eval \
@@ -97,7 +98,6 @@ MODULES= \
 	otp_internal \
 	orddict \
 	ordsets \
-	pg \
 	re \
 	pool \
 	proc_lib \
@@ -105,6 +105,7 @@ MODULES= \
 	qlc \
 	qlc_pt \
 	queue \
+	rand \
 	random \
 	sets \
 	shell \
@@ -169,6 +170,7 @@ docs:
 # specifications.
 primary_bootstrap_compiler: \
   $(BOOTSTRAP_COMPILER)/ebin/epp.beam \
+  $(BOOTSTRAP_COMPILER)/ebin/erl_anno.beam \
   $(BOOTSTRAP_COMPILER)/ebin/erl_scan.beam \
   $(BOOTSTRAP_COMPILER)/ebin/erl_parse.beam \
   $(BOOTSTRAP_COMPILER)/ebin/erl_lint.beam \
diff --git a/lib/stdlib/src/beam_lib.erl b/lib/stdlib/src/beam_lib.erl
index 1a7b7d5a5e..4a6b489204 100644
--- a/lib/stdlib/src/beam_lib.erl
+++ b/lib/stdlib/src/beam_lib.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2000-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -652,7 +652,13 @@ chunk_to_data(abstract_code=Id, Chunk, File, _Cs, AtomTable, Mod) ->
 		{'EXIT', _} ->
 		    error({invalid_chunk, File, chunk_name_to_id(Id, File)});
 		Term ->
-		    {AtomTable, {Id, Term}}
+                    try
+                        {AtomTable, {Id, anno_from_term(Term)}}
+                    catch
+                        _:_ ->
+                            error({invalid_chunk, File,
+                                   chunk_name_to_id(Id, File)})
+                    end
 	    end
     end;
 chunk_to_data(atoms=Id, _Chunk, _File, Cs, AtomTable0, _Mod) ->
@@ -878,7 +884,22 @@ decrypt_abst(Type, Module, File, Id, AtomTable, Bin) ->
 decrypt_abst_1({Type,Key,IVec,_BlockSize}, Bin) ->
     ok = start_crypto(),
     NewBin = crypto:block_decrypt(Type, Key, IVec, Bin),
-    binary_to_term(NewBin).
+    Term = binary_to_term(NewBin),
+    anno_from_term(Term).
+
+anno_from_term({raw_abstract_v1, Forms}) ->
+    {raw_abstract_v1, anno_from_forms(Forms)};
+anno_from_term({Tag, Forms}) when Tag =:= abstract_v1; Tag =:= abstract_v2 ->
+    try {Tag, anno_from_forms(Forms)}
+    catch
+        _:_ ->
+            {Tag, Forms}
+    end;
+anno_from_term(T) ->
+    T.
+
+anno_from_forms(Forms) ->
+    [erl_parse:anno_from_term(Form) || Form <- Forms].
 
 start_crypto() ->
     case crypto:start() of
diff --git a/lib/stdlib/src/binary.erl b/lib/stdlib/src/binary.erl
index 8d07a356dd..de26784ead 100644
--- a/lib/stdlib/src/binary.erl
+++ b/lib/stdlib/src/binary.erl
@@ -215,12 +215,13 @@ split(H,N) ->
       Subject :: binary(),
       Pattern :: binary() | [binary()] | cp(),
       Options :: [Option],
-      Option :: {scope, part()} | trim | global,
+      Option :: {scope, part()} | trim | global | trim_all,
       Parts :: [binary()].
 
 split(Haystack,Needles,Options) ->
     try
-	{Part,Global,Trim} = get_opts_split(Options,{no,false,false}),
+	{Part,Global,Trim,TrimAll} =
+        get_opts_split(Options,{no,false,false,false}),
 	Moptlist = case Part of
 		       no ->
 			   [];
@@ -236,20 +237,24 @@ split(Haystack,Needles,Options) ->
 			    Match -> [Match]
 			end
 		end,
-	do_split(Haystack,MList,0,Trim)
+	do_split(Haystack,MList,0,Trim,TrimAll)
     catch
 	_:_ ->
 	    erlang:error(badarg)
     end.
 
-do_split(H,[],N,true) when N >= byte_size(H) ->
+do_split(H,[],N,true,_) when N >= byte_size(H) ->
     [];
-do_split(H,[],N,_) ->
+do_split(H,[],N,_,true) when N >= byte_size(H) ->
+    [];
+do_split(H,[],N,_,_) ->
     [binary:part(H,{N,byte_size(H)-N})];
-do_split(H,[{A,B}|T],N,Trim) ->
+do_split(H,[{A,B}|T],N,Trim,TrimAll) ->
     case binary:part(H,{N,A-N}) of
+	<<>> when TrimAll == true ->
+	    do_split(H,T,A+B,Trim,TrimAll);
 	<<>> ->
-	    Rest =  do_split(H,T,A+B,Trim),
+	    Rest =  do_split(H,T,A+B,Trim,TrimAll),
 	    case {Trim, Rest} of
 		{true,[]} ->
 		    [];
@@ -257,7 +262,7 @@ do_split(H,[{A,B}|T],N,Trim) ->
 		    [<<>> | Rest]
 	    end;
 	Oth ->
-	    [Oth | do_split(H,T,A+B,Trim)]
+	    [Oth | do_split(H,T,A+B,Trim,TrimAll)]
     end.
 
 
@@ -346,14 +351,16 @@ splitat(H,N,[I|T]) ->
 %% Simple helper functions
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
-get_opts_split([],{Part,Global,Trim}) ->
-    {Part,Global,Trim};
-get_opts_split([{scope,{A,B}} | T],{_Part,Global,Trim}) ->
-    get_opts_split(T,{{A,B},Global,Trim});
-get_opts_split([global | T],{Part,_Global,Trim}) ->
-    get_opts_split(T,{Part,true,Trim});
-get_opts_split([trim | T],{Part,Global,_Trim}) ->
-    get_opts_split(T,{Part,Global,true});
+get_opts_split([],{Part,Global,Trim,TrimAll}) ->
+    {Part,Global,Trim,TrimAll};
+get_opts_split([{scope,{A,B}} | T],{_Part,Global,Trim,TrimAll}) ->
+    get_opts_split(T,{{A,B},Global,Trim,TrimAll});
+get_opts_split([global | T],{Part,_Global,Trim,TrimAll}) ->
+    get_opts_split(T,{Part,true,Trim,TrimAll});
+get_opts_split([trim | T],{Part,Global,_Trim,TrimAll}) ->
+    get_opts_split(T,{Part,Global,true,TrimAll});
+get_opts_split([trim_all | T],{Part,Global,Trim,_TrimAll}) ->
+    get_opts_split(T,{Part,Global,Trim,true});
 get_opts_split(_,_) ->
     throw(badopt).
 
diff --git a/lib/stdlib/src/c.erl b/lib/stdlib/src/c.erl
index 9860adf04d..d5b24d3c32 100644
--- a/lib/stdlib/src/c.erl
+++ b/lib/stdlib/src/c.erl
@@ -27,7 +27,7 @@
 	 lc_batch/0, lc_batch/1,
 	 i/3,pid/3,m/0,m/1,
 	 bt/1, q/0,
-	 erlangrc/0,erlangrc/1,bi/1, flush/0, regs/0,
+	 erlangrc/0,erlangrc/1,bi/1, flush/0, regs/0, uptime/0,
 	 nregs/0,pwd/0,ls/0,ls/1,cd/1,memory/1,memory/0, xm/1]).
 
 -export([display_info/1]).
@@ -65,6 +65,7 @@ help() ->
 		   "q()        -- quit - shorthand for init:stop()\n"
 		   "regs()     -- information about registered processes\n"
 		   "nregs()    -- information about all registered processes\n"
+		   "uptime()   -- print node uptime\n"
 		   "xm(M)      -- cross reference check a module\n"
 		   "y(File)    -- generate a Yecc parser\n">>).
 
@@ -774,6 +775,26 @@ memory() -> erlang:memory().
 memory(TypeSpec) -> erlang:memory(TypeSpec).
 
 %%
+%% uptime/0
+%%
+
+-spec uptime() -> 'ok'.
+
+uptime() ->
+    io:format("~s~n", [uptime(get_uptime())]).
+
+uptime({D, {H, M, S}}) ->
+    lists:flatten(
+      [[ io_lib:format("~p days, ", [D]) || D > 0 ],
+       [ io_lib:format("~p hours, ", [H]) || D+H > 0 ],
+       [ io_lib:format("~p minutes and ", [M]) || D+H+M > 0 ],
+       io_lib:format("~p seconds", [S])]).
+
+get_uptime() ->
+    {UpTime, _} = erlang:statistics(wall_clock),
+    calendar:seconds_to_daystime(UpTime div 1000).
+
+%%
 %% Cross Reference Check
 %% 
 %%-spec xm(module() | file:filename()) -> xref:m/1 return
diff --git a/lib/stdlib/src/calendar.erl b/lib/stdlib/src/calendar.erl
index 0320e0cd0e..d08001c933 100644
--- a/lib/stdlib/src/calendar.erl
+++ b/lib/stdlib/src/calendar.erl
@@ -299,7 +299,7 @@ local_time_to_universal_time_dst(DateTime) ->
 %% now_to_universal_time(Now)
 %% now_to_datetime(Now)
 %%
-%% Convert from now() to UTC.
+%% Convert from erlang:timestamp() to UTC.
 %%
 %% Args: Now = now(); now() = {MegaSec, Sec, MilliSec}, MegaSec = Sec
 %% = MilliSec = integer() 
diff --git a/lib/stdlib/src/dets.erl b/lib/stdlib/src/dets.erl
index a4bd45ea19..5d365ac962 100644
--- a/lib/stdlib/src/dets.erl
+++ b/lib/stdlib/src/dets.erl
@@ -1963,7 +1963,7 @@ do_safe_fixtable(Head, Pid, true) ->
     case Head#head.fixed of 
 	false -> 
 	    link(Pid),
-	    Fixed = {erlang:now(), [{Pid, 1}]},
+	    Fixed = {utime_now(), [{Pid, 1}]},
 	    Ftab = dets_utils:get_freelists(Head),
 	    Head#head{fixed = Fixed, freelists = {Ftab, Ftab}};
 	{TimeStamp, Counters} ->
@@ -3088,14 +3088,14 @@ update_cache(Head, ToAdd) ->
 	    {Head1, Found, []};
 	Cache#cache.wrtime =:= undefined ->
 	    %% Empty cache. Schedule a delayed write.
-	    Now = now(), Me = self(),
+	    Now = time_now(), Me = self(),
 	    Call = ?DETS_CALL(Me, {delayed_write, Now}),
 	    erlang:send_after(Cache#cache.delay, Me, Call),
 	    {Head1#head{cache = NewCache#cache{wrtime = Now}}, Found, []};
 	Size0 =:= 0 ->
 	    %% Empty cache that has been written after the
 	    %% currently scheduled delayed write.
-	    {Head1#head{cache = NewCache#cache{wrtime = now()}}, Found, []};
+	    {Head1#head{cache = NewCache#cache{wrtime = time_now()}}, Found, []};
 	true ->
 	    %% Cache is not empty, delayed write has been scheduled.
 	    {Head1, Found, []}
@@ -3158,11 +3158,7 @@ delayed_write(Head, WrTime) ->
 		    Head#head{cache = NewCache};
 		true ->
 		    %% Yes, schedule a new delayed write.
-		    {MS1,S1,M1} = WrTime,
-		    {MS2,S2,M2} = LastWrTime,
-		    WrT = M1+1000000*(S1+1000000*MS1),
-		    LastWrT = M2+1000000*(S2+1000000*MS2),
-		    When = round((LastWrT - WrT)/1000), Me = self(),
+		    When = round((LastWrTime - WrTime)/1000), Me = self(),
 		    Call = ?DETS_CALL(Me, {delayed_write, LastWrTime}),
 		    erlang:send_after(When, Me, Call),
 		    Head
@@ -3274,6 +3270,16 @@ err(Error) ->
 	    Error
     end.
 
+-compile({inline, [time_now/0]}).
+time_now() ->
+    erlang:monotonic_time(1000000).
+
+-compile({inline, [utime_now/0]}).
+utime_now() ->
+    Time = time_now(),
+    UniqueCounter = erlang:unique_integer([monotonic]),
+    {Time, UniqueCounter}.
+
 %%%%%%%%%%%%%%%%%  DEBUG functions %%%%%%%%%%%%%%%%
 
 file_info(FileName) ->
diff --git a/lib/stdlib/src/dets_utils.erl b/lib/stdlib/src/dets_utils.erl
index 6c176ad513..26e22dbd5b 100644
--- a/lib/stdlib/src/dets_utils.erl
+++ b/lib/stdlib/src/dets_utils.erl
@@ -447,7 +447,7 @@ reset_cache(C) ->
 		    WrTime =:= undefined ->
 			WrTime;
 		    true ->
-			now()
+			erlang:monotonic_time(1000000)
 		end,
     PK = family(C#cache.cache),
     NewC = C#cache{cache = [], csize = 0, inserts = 0, wrtime = NewWrTime},
diff --git a/lib/stdlib/src/dict.erl b/lib/stdlib/src/dict.erl
index cf8fb3114a..5a9f63c5e2 100644
--- a/lib/stdlib/src/dict.erl
+++ b/lib/stdlib/src/dict.erl
@@ -417,6 +417,8 @@ on_bucket(F, T, Slot) ->
 %%  could have implemented map and filter using fold but these are
 %%  faster.  We hope!
 
+fold_dict(F, Acc, #dict{size=0}) when is_function(F, 3) ->
+    Acc;
 fold_dict(F, Acc, D) ->
     Segs = D#dict.segs,
     fold_segs(F, Acc, Segs, tuple_size(Segs)).
@@ -434,6 +436,8 @@ fold_bucket(F, Acc, [?kv(Key,Val)|Bkt]) ->
     fold_bucket(F, F(Key, Val, Acc), Bkt);
 fold_bucket(F, Acc, []) when is_function(F, 3) -> Acc.
 
+map_dict(F, #dict{size=0} = Dict) when is_function(F, 2) ->
+    Dict;
 map_dict(F, D) ->
     Segs0 = tuple_to_list(D#dict.segs),
     Segs1 = map_seg_list(F, Segs0),
@@ -453,6 +457,8 @@ map_bucket(F, [?kv(Key,Val)|Bkt]) ->
     [?kv(Key,F(Key, Val))|map_bucket(F, Bkt)];
 map_bucket(F, []) when is_function(F, 2) -> [].
 
+filter_dict(F, #dict{size=0} = Dict) when is_function(F, 2) ->
+    Dict;
 filter_dict(F, D) ->
     Segs0 = tuple_to_list(D#dict.segs),
     {Segs1,Fc} = filter_seg_list(F, Segs0, [], 0),
diff --git a/lib/stdlib/src/digraph.erl b/lib/stdlib/src/digraph.erl
index 0c21271529..1f8caa88a4 100644
--- a/lib/stdlib/src/digraph.erl
+++ b/lib/stdlib/src/digraph.erl
@@ -36,7 +36,7 @@
 
 -export([get_short_path/3, get_short_cycle/2]).
 
--export_type([graph/0, d_type/0, vertex/0, edge/0]).
+-export_type([graph/0, d_type/0, vertex/0, edge/0, label/0]).
 
 -record(digraph, {vtab = notable :: ets:tab(),
 		  etab = notable :: ets:tab(),
diff --git a/lib/stdlib/src/edlin.erl b/lib/stdlib/src/edlin.erl
index b3bc5f6d92..362669545e 100644
--- a/lib/stdlib/src/edlin.erl
+++ b/lib/stdlib/src/edlin.erl
@@ -21,7 +21,7 @@
 %% A simple Emacs-like line editor.
 %% About Latin-1 characters: see the beginning of erl_scan.erl.
 
--export([init/0,start/1,start/2,edit_line/2,prefix_arg/1]).
+-export([init/0,init/1,start/1,start/2,edit_line/2,prefix_arg/1]).
 -export([erase_line/1,erase_inp/1,redraw_line/1]).
 -export([length_before/1,length_after/1,prompt/1]).
 -export([current_line/1, current_chars/1]).
@@ -44,6 +44,20 @@
 init() ->
     put(kill_buffer, []).
 
+init(Pid) ->
+    %% copy the kill_buffer from the process Pid
+    CopiedKillBuf =
+	case erlang:process_info(Pid, dictionary) of
+	    {dictionary,Dict} ->
+		case proplists:get_value(kill_buffer, Dict) of
+		    undefined -> [];
+		    Buf       -> Buf
+		end;
+	    undefined ->
+		[]
+	end,
+    put(kill_buffer, CopiedKillBuf).
+
 %% start(Prompt)
 %% edit(Characters, Continuation)
 %%  Return
diff --git a/lib/stdlib/src/epp.erl b/lib/stdlib/src/epp.erl
index 5f8637c118..7866b5f792 100644
--- a/lib/stdlib/src/epp.erl
+++ b/lib/stdlib/src/epp.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -158,7 +158,7 @@ scan_erl_form(Epp) ->
         {'ok', AbsForm} | {'eof', Line} | {error, ErrorInfo} when
       Epp :: epp_handle(),
       AbsForm :: erl_parse:abstract_form(),
-      Line :: erl_scan:line(),
+      Line :: erl_anno:line(),
       ErrorInfo :: erl_scan:error_info() | erl_parse:error_info().
 
 parse_erl_form(Epp) ->
@@ -220,7 +220,7 @@ format_error(E) -> file:format_error(E).
       IncludePath :: [DirectoryName :: file:name()],
       Form :: erl_parse:abstract_form() | {'error', ErrorInfo} | {'eof',Line},
       PredefMacros :: macros(),
-      Line :: erl_scan:line(),
+      Line :: erl_anno:line(),
       ErrorInfo :: erl_scan:error_info() | erl_parse:error_info(),
       OpenError :: file:posix() | badarg | system_limit.
 
@@ -235,7 +235,7 @@ parse_file(Ifile, Path, Predefs) ->
 		  {'default_encoding', DefEncoding :: source_encoding()} |
 		  'extra'],
       Form :: erl_parse:abstract_form() | {'error', ErrorInfo} | {'eof',Line},
-      Line :: erl_scan:line(),
+      Line :: erl_anno:line(),
       ErrorInfo :: erl_scan:error_info() | erl_parse:error_info(),
       Extra :: [{'encoding', source_encoding() | 'none'}],
       OpenError :: file:posix() | badarg | system_limit.
@@ -257,7 +257,7 @@ parse_file(Ifile, Options) ->
 -spec parse_file(Epp) -> [Form] when
       Epp :: epp_handle(),
       Form :: erl_parse:abstract_form() | {'error', ErrorInfo} | {'eof',Line},
-      Line :: erl_scan:line(),
+      Line :: erl_anno:line(),
       ErrorInfo :: erl_scan:error_info() | erl_parse:error_info().
 
 parse_file(Epp) ->
@@ -280,7 +280,7 @@ parse_file(Epp) ->
 	{error,E} ->
 	    [{error,E}|parse_file(Epp)];
 	{eof,Location} ->
-	    [{eof,Location}]
+	    [{eof,erl_anno:new(Location)}]
     end.
 
 -spec default_encoding() -> source_encoding().
@@ -547,7 +547,8 @@ init_server(Pid, Name, Options, St0) ->
 			 path=Path, macs=Ms1,
 			 default_encoding=DefEncoding},
             From = wait_request(St),
-            enter_file_reply(From, Name, AtLocation, AtLocation),
+            Anno = erl_anno:new(AtLocation),
+            enter_file_reply(From, Name, Anno, AtLocation, code),
             wait_req_scan(St);
 	{error,E} ->
 	    epp_reply(Pid, {error,E})
@@ -559,15 +560,16 @@ init_server(Pid, Name, Options, St0) ->
 
 predef_macros(File) ->
      Machine = list_to_atom(erlang:system_info(machine)),
+     Anno = line1(),
      dict:from_list([
-	{{atom,'FILE'}, 	      {none,[{string,1,File}]}},
-	{{atom,'LINE'},		      {none,[{integer,1,1}]}},
+	{{atom,'FILE'}, 	      {none,[{string,Anno,File}]}},
+	{{atom,'LINE'},		      {none,[{integer,Anno,1}]}},
 	{{atom,'MODULE'},	      undefined},
 	{{atom,'MODULE_STRING'},      undefined},
 	{{atom,'BASE_MODULE'},	      undefined},
 	{{atom,'BASE_MODULE_STRING'}, undefined},
-	{{atom,'MACHINE'},	      {none,[{atom,1,Machine}]}},
-	{{atom,Machine},	      {none,[{atom,1,true}]}}
+	{{atom,'MACHINE'},	      {none,[{atom,Anno,Machine}]}},
+	{{atom,Machine},	      {none,[{atom,Anno,true}]}}
      ]).
 
 %% user_predef(PreDefMacros, Macros) ->
@@ -595,8 +597,9 @@ user_predef([M|Pdm], Ms) when is_atom(M) ->
 	{ok,_Def} -> %% Predefined macros
 	    {error,{redefine_predef,M}};
 	error ->
+            A = line1(),
 	    user_predef(Pdm,
-	                dict:store({atom,M}, [{none, {none,[{atom,1,true}]}}], Ms))
+	                dict:store({atom,M}, [{none, {none,[{atom,A,true}]}}], Ms))
     end;
 user_predef([Md|_Pdm], _Ms) -> {error,{bad,Md}};
 user_predef([], Ms) -> {ok,Ms}.
@@ -645,7 +648,7 @@ wait_req_skip(St, Sis) ->
 
 enter_file(_NewName, Inc, From, St)
   when length(St#epp.sstk) >= 8 ->
-    epp_reply(From, {error,{abs_loc(Inc),epp,{depth,"include"}}}),
+    epp_reply(From, {error,{loc(Inc),epp,{depth,"include"}}}),
     wait_req_scan(St);
 enter_file(NewName, Inc, From, St) ->
     case file:path_open(St#epp.path, NewName, [read]) of
@@ -653,7 +656,7 @@ enter_file(NewName, Inc, From, St) ->
             Loc = start_loc(St#epp.location),
 	    wait_req_scan(enter_file2(NewF, Pname, From, St, Loc));
 	{error,_E} ->
-	    epp_reply(From, {error,{abs_loc(Inc),epp,{include,file,NewName}}}),
+	    epp_reply(From, {error,{loc(Inc),epp,{include,file,NewName}}}),
 	    wait_req_scan(St)
     end.
 
@@ -661,9 +664,9 @@ enter_file(NewName, Inc, From, St) ->
 %%  Set epp to use this file and "enter" it.
 
 enter_file2(NewF, Pname, From, St0, AtLocation) ->
-    Loc = start_loc(AtLocation),
-    enter_file_reply(From, Pname, Loc, AtLocation),
-    Ms = dict:store({atom,'FILE'}, {none,[{string,Loc,Pname}]}, St0#epp.macs),
+    Anno = erl_anno:new(AtLocation),
+    enter_file_reply(From, Pname, Anno, AtLocation, code),
+    Ms = dict:store({atom,'FILE'}, {none,[{string,Anno,Pname}]}, St0#epp.macs),
     %% update the head of the include path to be the directory of the new
     %% source file, so that an included file can always include other files
     %% relative to its current location (this is also how C does it); note
@@ -673,16 +676,20 @@ enter_file2(NewF, Pname, From, St0, AtLocation) ->
     Path = [filename:dirname(Pname) | tl(St0#epp.path)],
     DefEncoding = St0#epp.default_encoding,
     _ = set_encoding(NewF, DefEncoding),
-    #epp{file=NewF,location=Loc,name=Pname,name2=Pname,delta=0,
+    #epp{file=NewF,location=AtLocation,name=Pname,name2=Pname,delta=0,
          sstk=[St0|St0#epp.sstk],path=Path,macs=Ms,
          default_encoding=DefEncoding}.
 
-enter_file_reply(From, Name, Location, AtLocation) ->
-    Attr = loc_attr(AtLocation),
-    Rep = {ok, [{'-',Attr},{atom,Attr,file},{'(',Attr},
-		{string,Attr,file_name(Name)},{',',Attr},
-		{integer,Attr,get_line(Location)},{')',Location},
-                {dot,Attr}]},
+enter_file_reply(From, Name, LocationAnno, AtLocation, Where) ->
+    Anno0 = loc_anno(AtLocation),
+    Anno = case Where of
+               code -> Anno0;
+               generated -> erl_anno:set_generated(true, Anno0)
+           end,
+    Rep = {ok, [{'-',Anno},{atom,Anno,file},{'(',Anno},
+		{string,Anno,file_name(Name)},{',',Anno},
+		{integer,Anno,get_line(LocationAnno)},{')',LocationAnno},
+                {dot,Anno}]},
     epp_reply(From, Rep).
 
 %% Flatten filename to a string. Must be a valid filename.
@@ -710,18 +717,20 @@ leave_file(From, St) ->
                     #epp{location=OldLoc, delta=Delta, name=OldName,
                          name2=OldName2} = OldSt,
                     CurrLoc = add_line(OldLoc, Delta),
+                    Anno = erl_anno:new(CurrLoc),
 		    Ms = dict:store({atom,'FILE'},
-				    {none,[{string,CurrLoc,OldName2}]},
+				    {none,[{string,Anno,OldName2}]},
 				    St#epp.macs),
                     NextSt = OldSt#epp{sstk=Sts,macs=Ms,uses=St#epp.uses},
-		    enter_file_reply(From, OldName, CurrLoc, CurrLoc),
+		    enter_file_reply(From, OldName, Anno, CurrLoc, code),
                     case OldName2 =:= OldName of
                         true ->
                             ok;
                         false ->
                             NFrom = wait_request(NextSt),
-                            enter_file_reply(NFrom, OldName2, OldLoc,
-                                             neg_line(CurrLoc))
+                            OldAnno = erl_anno:new(OldLoc),
+                            enter_file_reply(NFrom, OldName2, OldAnno,
+                                             CurrLoc, generated)
                         end,
                     wait_req_scan(NextSt);
 		[] ->
@@ -818,9 +827,9 @@ scan_extends(_Ts, _As, Ms) -> Ms.
 
 %% scan_define(Tokens, DefineToken, From, EppState)
 
-scan_define([{'(',_Lp},{Type,_Lm,M}=Mac,{',',Lc}|Toks], _Def, From, St)
+scan_define([{'(',_Lp},{Type,_Lm,M}=Mac,{',',_}=Comma|Toks], _Def, From, St)
   when Type =:= atom; Type =:= var ->
-    case catch macro_expansion(Toks, Lc) of
+    case catch macro_expansion(Toks, Comma) of
         Expansion when is_list(Expansion) ->
             case dict:find({atom,M}, St#epp.macs) of
                 {ok, Defs} when is_list(Defs) ->
@@ -910,10 +919,12 @@ macro_ref([]) ->
     [];
 macro_ref([{'?', _}, {'?', _} | Rest]) ->
     macro_ref(Rest);
-macro_ref([{'?', _}, {atom, Lm, A} | Rest]) ->
+macro_ref([{'?', _}, {atom, _, A}=Atom | Rest]) ->
+    Lm = loc(Atom),
     Arity = count_args(Rest, Lm, A),
     [{{atom, A}, Arity} | macro_ref(Rest)];
-macro_ref([{'?', _}, {var, Lm, A} | Rest]) ->
+macro_ref([{'?', _}, {var, _, A}=Var | Rest]) ->
+    Lm = loc(Var),
     Arity = count_args(Rest, Lm, A),
     [{{atom, A}, Arity} | macro_ref(Rest)];
 macro_ref([_Token | Rest]) ->
@@ -940,7 +951,7 @@ scan_include([{'(',_Llp},{string,_Lf,NewName0},{')',_Lrp},{dot,_Ld}], Inc,
     NewName = expand_var(NewName0),
     enter_file(NewName, Inc, From, St);
 scan_include(_Toks, Inc, From, St) ->
-    epp_reply(From, {error,{abs_loc(Inc),epp,{bad,include}}}),
+    epp_reply(From, {error,{loc(Inc),epp,{bad,include}}}),
     wait_req_scan(St).
 
 %% scan_include_lib(Tokens, IncludeToken, From, EppState)
@@ -955,7 +966,7 @@ find_lib_dir(NewName) ->
 scan_include_lib([{'(',_Llp},{string,_Lf,_NewName0},{')',_Lrp},{dot,_Ld}],
                  Inc, From, St)
   when length(St#epp.sstk) >= 8 ->
-    epp_reply(From, {error,{abs_loc(Inc),epp,{depth,"include_lib"}}}),
+    epp_reply(From, {error,{loc(Inc),epp,{depth,"include_lib"}}}),
     wait_req_scan(St);
 scan_include_lib([{'(',_Llp},{string,_Lf,NewName0},{')',_Lrp},{dot,_Ld}],
                  Inc, From, St) ->
@@ -974,18 +985,18 @@ scan_include_lib([{'(',_Llp},{string,_Lf,NewName0},{')',_Lrp},{dot,_Ld}],
                                                       St, Loc));
 			{error,_E2} ->
 			    epp_reply(From,
-				      {error,{abs_loc(Inc),epp,
+				      {error,{loc(Inc),epp,
                                               {include,lib,NewName}}}),
 			    wait_req_scan(St)
 		    end;
 		_Error ->
-		    epp_reply(From, {error,{abs_loc(Inc),epp,
+		    epp_reply(From, {error,{loc(Inc),epp,
                                             {include,lib,NewName}}}),
 		    wait_req_scan(St)
 	    end
     end;
 scan_include_lib(_Toks, Inc, From, St) ->
-    epp_reply(From, {error,{abs_loc(Inc),epp,{bad,include_lib}}}),
+    epp_reply(From, {error,{loc(Inc),epp,{bad,include_lib}}}),
     wait_req_scan(St).
 
 %% scan_ifdef(Tokens, IfdefToken, From, EppState)
@@ -1088,11 +1099,12 @@ scan_endif(_Toks, Endif, From, St) ->
 
 scan_file([{'(',_Llp},{string,_Ls,Name},{',',_Lc},{integer,_Li,Ln},{')',_Lrp},
            {dot,_Ld}], Tf, From, St) ->
-    enter_file_reply(From, Name, Ln, neg_line(abs_loc(Tf))),
-    Ms = dict:store({atom,'FILE'}, {none,[{string,1,Name}]}, St#epp.macs),
+    Anno = erl_anno:new(Ln),
+    enter_file_reply(From, Name, Anno, loc(Tf), generated),
+    Ms = dict:store({atom,'FILE'}, {none,[{string,line1(),Name}]}, St#epp.macs),
     Locf = loc(Tf),
     NewLoc = new_location(Ln, St#epp.location, Locf),
-    Delta = abs(get_line(element(2, Tf)))-Ln + St#epp.delta, 
+    Delta = get_line(element(2, Tf))-Ln + St#epp.delta,
     wait_req_scan(St#epp{name2=Name,location=NewLoc,delta=Delta,macs=Ms});
 scan_file(_Toks, Tf, From, St) ->
     epp_reply(From, {error,{loc(Tf),epp,{bad,file}}}),
@@ -1153,7 +1165,7 @@ skip_else(_Else, From, St, Sis) ->
     skip_toks(From, St, Sis).
 
 %% macro_pars(Tokens, ArgStack)
-%% macro_expansion(Tokens, Line)
+%% macro_expansion(Tokens, Anno)
 %%  Extract the macro parameters and the expansion from a macro definition.
 
 macro_pars([{')',_Lp}, {',',Ld}|Ex], Args) ->
@@ -1165,11 +1177,12 @@ macro_pars([{var,_L,Name}, {',',_}|Ts], Args) ->
     false = lists:member(Name, Args),
     macro_pars(Ts, [Name|Args]).
 
-macro_expansion([{')',_Lp},{dot,_Ld}], _L0) -> [];
-macro_expansion([{dot,Ld}], _L0) -> throw({error,Ld,missing_parenthesis});
-macro_expansion([T|Ts], _L0) ->
-    [T|macro_expansion(Ts, element(2, T))];
-macro_expansion([], L0) -> throw({error,L0,premature_end}).
+macro_expansion([{')',_Lp},{dot,_Ld}], _Anno0) -> [];
+macro_expansion([{dot,_}=Dot], _Anno0) ->
+    throw({error,loc(Dot),missing_parenthesis});
+macro_expansion([T|Ts], _Anno0) ->
+    [T|macro_expansion(Ts, T)];
+macro_expansion([], Anno0) -> throw({error,loc(Anno0),premature_end}).
 
 %% expand_macros(Tokens, Macros)
 %% expand_macro(Tokens, MacroToken, RestTokens)
@@ -1239,17 +1252,17 @@ expand_macros([{'?',_Lq},{atom,_Lm,M}=MacT|Toks], Ms) ->
     expand_macros(atom, MacT, M, Toks, Ms);
 %% Special macros
 expand_macros([{'?',_Lq},{var,Lm,'LINE'}=Tok|Toks], Ms) ->
-    {line,Line} = erl_scan:token_info(Tok, line),
+    Line = erl_scan:line(Tok),
     [{integer,Lm,Line}|expand_macros(Toks, Ms)];
 expand_macros([{'?',_Lq},{var,_Lm,M}=MacT|Toks], Ms) ->
     expand_macros(atom, MacT, M, Toks, Ms);
 %% Illegal macros
 expand_macros([{'?',_Lq},Token|_Toks], _Ms) ->
-    T = case erl_scan:token_info(Token, text) of
-            {text,Text} ->
+    T = case erl_scan:text(Token) of
+            Text when is_list(Text) ->
                 Text;
             undefined ->
-                {symbol,Symbol} = erl_scan:token_info(Token, symbol),
+                Symbol = erl_scan:symbol(Token),
                 io_lib:write(Symbol)
         end,
     throw({error,loc(Token),{call,[$?|T]}});
@@ -1383,7 +1396,7 @@ expand_arg([], Ts, L, Rest, Bs) ->
 %%% stringify(Ts, L) returns a list of one token: a string which when
 %%% tokenized would yield the token list Ts.
 
-%% erl_scan:token_info(T, text) is not backward compatible with this.
+%% erl_scan:text(T) is not backward compatible with this.
 %% Note that escaped characters will be replaced by themselves.
 token_src({dot, _}) ->
     ".";
@@ -1456,36 +1469,29 @@ fname_join(Components) ->
     filename:join(Components).
 
 %% The line only. (Other tokens may have the column and text as well...)
-loc_attr(Line) when is_integer(Line) ->
-    Line;
-loc_attr({Line,_Column}) ->
-    Line.
+loc_anno(Line) when is_integer(Line) ->
+    erl_anno:new(Line);
+loc_anno({Line,_Column}) ->
+    erl_anno:new(Line).
 
 loc(Token) ->
-    {location,Location} = erl_scan:token_info(Token, location),
-    Location.
+    erl_scan:location(Token).
 
-abs_loc(Token) ->
-    loc(setelement(2, Token, abs_line(element(2, Token)))).
-
-neg_line(L) ->
-    erl_scan:set_attribute(line, L, fun(Line) -> -abs(Line) end).
-
-abs_line(L) ->
-    erl_scan:set_attribute(line, L, fun(Line) -> abs(Line) end).
-
-add_line(L, Offset) ->
-    erl_scan:set_attribute(line, L, fun(Line) -> Line+Offset end).
+add_line(Line, Offset) when is_integer(Line) ->
+    Line+Offset;
+add_line({Line, Column}, Offset) ->
+    {Line+Offset, Column}.
 
 start_loc(Line) when is_integer(Line) ->
     1;
 start_loc({_Line, _Column}) ->
-    {1,1}.
+    {1, 1}.
 
-get_line(Line) when is_integer(Line) ->
-    Line;
-get_line({Line,_Column}) ->
-    Line.
+line1() ->
+    erl_anno:new(1).
+
+get_line(Anno) ->
+    erl_anno:line(Anno).
 
 %% epp has always output -file attributes when entering and leaving
 %% included files (-include, -include_lib). Starting with R11B the
@@ -1525,14 +1531,15 @@ get_line({Line,_Column}) ->
 interpret_file_attribute(Forms) ->
     interpret_file_attr(Forms, 0, []).
 
-interpret_file_attr([{attribute,Loc,file,{File,Line}}=Form | Forms],
+interpret_file_attr([{attribute,Anno,file,{File,Line}}=Form | Forms],
                     Delta, Fs) ->
-    {line, L} = erl_scan:attributes_info(Loc, line),
+    L = get_line(Anno),
+    Generated = erl_anno:generated(Anno),
     if
-        L < 0 ->
+        Generated ->
             %% -file attribute
-            interpret_file_attr(Forms, (abs(L) + Delta) - Line, Fs);
-        true ->
+            interpret_file_attr(Forms, (L + Delta) - Line, Fs);
+        not Generated ->
             %% -include or -include_lib
             % true = L =:= Line,
             case Fs of
@@ -1543,11 +1550,11 @@ interpret_file_attr([{attribute,Loc,file,{File,Line}}=Form | Forms],
             end
     end;
 interpret_file_attr([Form0 | Forms], Delta, Fs) ->
-    F = fun(Attrs) ->
-                F2 = fun(L) -> abs(L) + Delta end,
-                erl_scan:set_attribute(line, Attrs, F2)
+    F = fun(Anno) ->
+                Line = erl_anno:line(Anno),
+                erl_anno:set_line(Line + Delta, Anno)
         end,
-    Form = erl_lint:modify_line(Form0, F),
+    Form = erl_parse:map_anno(F, Form0),
     [Form | interpret_file_attr(Forms, Delta, Fs)];
 interpret_file_attr([], _Delta, _Fs) ->
     [].
diff --git a/lib/stdlib/src/erl_anno.erl b/lib/stdlib/src/erl_anno.erl
new file mode 100644
index 0000000000..fa83375c34
--- /dev/null
+++ b/lib/stdlib/src/erl_anno.erl
@@ -0,0 +1,458 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+-module(erl_anno).
+
+-export([new/1, is_anno/1]).
+-export([column/1, end_location/1, file/1, generated/1,
+         line/1, location/1, record/1, text/1]).
+-export([set_file/2, set_generated/2, set_line/2, set_location/2,
+         set_record/2, set_text/2]).
+
+%% To be used when necessary to avoid Dialyzer warnings.
+-export([to_term/1, from_term/1]).
+
+-export_type([anno/0, line/0, column/0, location/0, text/0]).
+
+-export_type([anno_term/0]).
+
+-define(LN(L), is_integer(L)).
+-define(COL(C), (is_integer(C) andalso C >= 1)).
+
+%% Location.
+-define(LCOLUMN(C), ?COL(C)).
+-define(LLINE(L), ?LN(L)).
+
+%% Debug: define DEBUG to make sure that annotations are handled as an
+%% opaque type. Note that all abstract code need to be compiled with
+%% DEBUG=true. See also ./erl_pp.erl.
+
+%-define(DEBUG, true).
+
+-type annotation() :: {'file', filename()}
+                    | {'generated', generated()}
+                    | {'location', location()}
+                    | {'record', record()}
+                    | {'text', string()}.
+
+-type anno() :: location() | [annotation(), ...].
+-type anno_term() :: term().
+
+-type column() :: pos_integer().
+-type generated() :: boolean().
+-type filename() :: file:filename_all().
+-type line() :: integer().
+-type location() :: line() | {line(), column()}.
+-type record() :: boolean().
+-type text() :: string().
+
+-ifdef(DEBUG).
+%% Anything 'false' accepted by the compiler.
+-define(ALINE(A), is_reference(A)).
+-define(ACOLUMN(A), is_reference(A)).
+-else.
+-define(ALINE(L), ?LN(L)).
+-define(ACOLUMN(C), ?COL(C)).
+-endif.
+
+-spec to_term(Anno) -> anno_term() when
+      Anno :: anno().
+
+-ifdef(DEBUG).
+to_term(Anno) ->
+    simplify(Anno).
+-else.
+to_term(Anno) ->
+    Anno.
+-endif.
+
+-spec from_term(Term) -> Anno when
+      Term :: anno_term(),
+      Anno :: anno().
+
+-ifdef(DEBUG).
+from_term(Term) when is_list(Term) ->
+    Term;
+from_term(Term) ->
+    [{location, Term}].
+-else.
+from_term(Term) ->
+    Term.
+-endif.
+
+-spec new(Location) -> anno() when
+      Location :: location().
+
+new(Line) when ?LLINE(Line) ->
+    new_location(Line);
+new({Line, Column}=Loc) when ?LLINE(Line), ?LCOLUMN(Column) ->
+    new_location(Loc);
+new(Term) ->
+    erlang:error(badarg, [Term]).
+
+-ifdef(DEBUG).
+new_location(Location) ->
+    [{location, Location}].
+-else.
+new_location(Location) ->
+    Location.
+-endif.
+
+-spec is_anno(Term) -> boolean() when
+      Term :: any().
+
+is_anno(Line) when ?ALINE(Line) ->
+    true;
+is_anno({Line, Column}) when ?ALINE(Line), ?ACOLUMN(Column) ->
+    true;
+is_anno(Anno) ->
+    (Anno =/= [] andalso
+     is_anno1(Anno) andalso
+     lists:keymember(location, 1, Anno)).
+
+is_anno1([{Item, Value}|Anno]) ->
+    is_anno2(Item, Value) andalso is_anno1(Anno);
+is_anno1(A) ->
+    A =:= [].
+
+is_anno2(location, Line) when ?LN(Line) ->
+    true;
+is_anno2(location, {Line, Column}) when ?LN(Line), ?COL(Column) ->
+    true;
+is_anno2(generated, true) ->
+    true;
+is_anno2(file, Filename) ->
+    is_filename(Filename);
+is_anno2(record, true) ->
+    true;
+is_anno2(text, Text) ->
+    is_string(Text);
+is_anno2(_, _) ->
+    false.
+
+is_filename(T) ->
+    is_list(T) orelse is_binary(T).
+
+is_string(T) ->
+    is_list(T).
+
+-spec column(Anno) -> column() | 'undefined' when
+      Anno :: anno().
+
+column({Line, Column}) when ?ALINE(Line), ?ACOLUMN(Column) ->
+    Column;
+column(Line) when ?ALINE(Line) ->
+    undefined;
+column(Anno) ->
+    case location(Anno) of
+        {_Line, Column} ->
+            Column;
+        _Line ->
+            undefined
+    end.
+
+-spec end_location(Anno) -> location() | 'undefined' when
+      Anno :: anno().
+
+end_location(Anno) ->
+    case text(Anno) of
+        undefined ->
+            undefined;
+        Text ->
+            case location(Anno) of
+                {Line, Column} ->
+                    end_location(Text, Line, Column);
+                Line ->
+                    end_location(Text, Line)
+            end
+    end.
+
+-spec file(Anno) -> filename() | 'undefined' when
+      Anno :: anno().
+
+file(Line) when ?ALINE(Line) ->
+    undefined;
+file({Line, Column}) when ?ALINE(Line), ?ACOLUMN(Column) ->
+    undefined;
+file(Anno) ->
+    anno_info(Anno, file).
+
+-spec generated(Anno) -> generated() when
+      Anno :: anno().
+
+generated(Line) when ?ALINE(Line) ->
+    Line =< 0;
+generated({Line, Column}) when ?ALINE(Line), ?ACOLUMN(Column) ->
+    Line =< 0;
+generated(Anno) ->
+    _ = anno_info(Anno, generated, false),
+    {location, Location} = lists:keyfind(location, 1, Anno),
+    case Location of
+        {Line, _Column} ->
+            Line =< 0;
+        Line ->
+            Line =< 0
+    end.
+
+-spec line(Anno) -> line() when
+      Anno :: anno().
+
+line(Anno) ->
+    case location(Anno) of
+        {Line, _Column} ->
+            Line;
+        Line ->
+            Line
+    end.
+
+-spec location(Anno) -> location() when
+      Anno :: anno().
+
+location(Line) when ?ALINE(Line) ->
+    abs(Line);
+location({Line, Column}) when ?ALINE(Line), ?ACOLUMN(Column) ->
+    {abs(Line), Column};
+location(Anno) ->
+    case anno_info(Anno, location) of
+        Line when Line < 0 ->
+            -Line;
+        {Line, Column} when Line < 0 ->
+            {-Line, Column};
+        Location ->
+            Location
+    end.
+
+-spec record(Anno) -> record() when
+      Anno :: anno().
+
+record(Line) when ?ALINE(Line) ->
+    false;
+record({Line, Column}) when ?ALINE(Line), ?ACOLUMN(Column) ->
+    false;
+record(Anno) ->
+    anno_info(Anno, record, false).
+
+-spec text(Anno) -> text() | 'undefined' when
+      Anno :: anno().
+
+text(Line) when ?ALINE(Line) ->
+    undefined;
+text({Line, Column}) when ?ALINE(Line), ?ACOLUMN(Column) ->
+    undefined;
+text(Anno) ->
+    anno_info(Anno, text).
+
+-spec set_file(File, Anno) -> Anno when
+      File :: filename(),
+      Anno :: anno().
+
+set_file(File, Anno) ->
+    set(file, File, Anno).
+
+-spec set_generated(Generated, Anno) -> Anno when
+      Generated :: generated(),
+      Anno :: anno().
+
+set_generated(true, Line) when ?ALINE(Line) ->
+    -abs(Line);
+set_generated(false, Line) when ?ALINE(Line) ->
+    abs(Line);
+set_generated(true, {Line, Column}) when ?ALINE(Line),
+                                         ?ACOLUMN(Column) ->
+    {-abs(Line),Column};
+set_generated(false, {Line, Column}) when ?ALINE(Line),
+                                          ?ACOLUMN(Column) ->
+    {abs(Line),Column};
+set_generated(Generated, Anno) ->
+    _ = set(generated, Generated, Anno),
+    {location, Location} = lists:keyfind(location, 1, Anno),
+    NewLocation =
+        case Location of
+            {Line, Column} when Generated ->
+                {-abs(Line), Column};
+            {Line, Column} when not Generated ->
+                {abs(Line), Column};
+            Line when Generated ->
+                -abs(Line);
+            Line when not Generated ->
+                abs(Line)
+        end,
+    lists:keyreplace(location, 1, Anno, {location, NewLocation}).
+
+-spec set_line(Line, Anno) -> Anno when
+      Line :: line(),
+      Anno :: anno().
+
+set_line(Line, Anno) ->
+    case location(Anno) of
+        {_Line, Column} ->
+            set_location({Line, Column}, Anno);
+        _Line ->
+            set_location(Line, Anno)
+    end.
+
+-spec set_location(Location, Anno) -> Anno when
+      Location :: location(),
+      Anno :: anno().
+
+set_location(Line, L) when ?ALINE(L), ?LLINE(Line) ->
+    new_location(fix_line(Line, L));
+set_location(Line, {L, Column}) when ?ALINE(L), ?ACOLUMN(Column),
+                                     ?LLINE(Line) ->
+    new_location(fix_line(Line, L));
+set_location({L, C}=Loc, Line) when ?ALINE(Line), ?LLINE(L), ?LCOLUMN(C) ->
+    new_location(fix_location(Loc, Line));
+set_location({L, C}=Loc, {Line, Column}) when ?ALINE(Line), ?ACOLUMN(Column),
+                                              ?LLINE(L), ?LCOLUMN(C) ->
+    new_location(fix_location(Loc, Line));
+set_location(Location, Anno) ->
+    _ = set(location, Location, Anno),
+    {location, OldLocation} = lists:keyfind(location, 1, Anno),
+    NewLocation =
+        case {Location, OldLocation} of
+            {{_Line, _Column}=Loc, {L, _C}} ->
+                fix_location(Loc, L);
+            {Line, {L, _C}} ->
+                fix_line(Line, L);
+            {{_Line, _Column}=Loc, L} ->
+                fix_location(Loc, L);
+            {Line, L} ->
+                fix_line(Line, L)
+        end,
+    lists:keyreplace(location, 1, Anno, {location, NewLocation}).
+
+fix_location({Line, Column}, OldLine) ->
+    {fix_line(Line, OldLine), Column}.
+
+fix_line(Line, OldLine) when OldLine < 0, Line > 0 ->
+    -Line;
+fix_line(Line, _OldLine) ->
+    Line.
+
+-spec set_record(Record, Anno) -> Anno when
+      Record :: record(),
+      Anno :: anno().
+
+set_record(Record, Anno) ->
+    set(record, Record, Anno).
+
+-spec set_text(Text, Anno) -> Anno when
+      Text :: text(),
+      Anno :: anno().
+
+set_text(Text, Anno) ->
+    set(text, Text, Anno).
+
+set(Item, Value, Anno) ->
+    case {is_settable(Item, Value), Anno} of
+        {true, Line} when ?ALINE(Line) ->
+            set_anno(Item, Value, [{location, Line}]);
+        {true, {L, C}=Location} when ?ALINE(L), ?ACOLUMN(C) ->
+            set_anno(Item, Value, [{location, Location}]);
+        {true, A} when is_list(A), A =/= [] ->
+            set_anno(Item, Value, Anno);
+        _ ->
+            erlang:error(badarg, [Item, Value, Anno])
+    end.
+
+set_anno(Item, Value, Anno) ->
+    case default(Item, Value) of
+        true ->
+            reset(Anno, Item);
+        false ->
+            R = case anno_info(Anno, Item) of
+                    undefined ->
+                        [{Item, Value}|Anno];
+                    _ ->
+                        lists:keyreplace(Item, 1, Anno, {Item, Value})
+                end,
+            simplify(R)
+    end.
+
+reset(Anno, Item) ->
+    A = lists:keydelete(Item, 1, Anno),
+    reset_simplify(A).
+
+-ifdef(DEBUG).
+reset_simplify(A) ->
+    A.
+-else.
+reset_simplify(A) ->
+    simplify(A).
+-endif.
+
+simplify([{location, Location}]) ->
+    Location;
+simplify(Anno) ->
+    Anno.
+
+anno_info(Anno, Item, Default) ->
+    try lists:keyfind(Item, 1, Anno) of
+        false ->
+            Default;
+        {Item, Value} ->
+            Value
+    catch
+        _:_ ->
+            erlang:error(badarg, [Anno])
+    end.
+
+anno_info(Anno, Item) ->
+    try lists:keyfind(Item, 1, Anno) of
+        {Item, Value} ->
+            Value;
+        false ->
+            undefined
+    catch
+        _:_ ->
+            erlang:error(badarg, [Anno])
+    end.
+
+end_location("", Line, Column) ->
+    {Line, Column};
+end_location([$\n|String], Line, _Column) ->
+    end_location(String, Line+1, 1);
+end_location([_|String], Line, Column) ->
+    end_location(String, Line, Column+1).
+
+end_location("", Line) ->
+    Line;
+end_location([$\n|String], Line) ->
+    end_location(String, Line+1);
+end_location([_|String], Line) ->
+    end_location(String, Line).
+
+is_settable(file, File) ->
+    is_filename(File);
+is_settable(generated, Boolean) when Boolean; not Boolean ->
+    true;
+is_settable(location, Line) when ?LLINE(Line) ->
+    true;
+is_settable(location, {Line, Column}) when ?LLINE(Line), ?LCOLUMN(Column) ->
+    true;
+is_settable(record, Boolean) when Boolean; not Boolean ->
+    true;
+is_settable(text, Text) ->
+    is_string(Text);
+is_settable(_, _) ->
+    false.
+
+default(generated, false) -> true;
+default(record, false) -> true;
+default(_, _) -> false.
diff --git a/lib/stdlib/src/erl_eval.erl b/lib/stdlib/src/erl_eval.erl
index 639ddfc214..39f833009f 100644
--- a/lib/stdlib/src/erl_eval.erl
+++ b/lib/stdlib/src/erl_eval.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -246,18 +246,14 @@ expr({record,_,_,Name,_}, _Bs, _Lf, _Ef, _RBs) ->
 %% map
 expr({map,_,Binding,Es}, Bs0, Lf, Ef, RBs) ->
     {value, Map0, Bs1} = expr(Binding, Bs0, Lf, Ef, none),
-    case Map0 of
-        #{} ->
-            {Vs,Bs2} = eval_map_fields(Es, Bs0, Lf, Ef),
-            Map1 = lists:foldl(fun ({map_assoc,K,V}, Mi) ->
-                                       maps:put(K, V, Mi);
-                                   ({map_exact,K,V}, Mi) ->
-                                       maps:update(K, V, Mi)
-                               end, Map0, Vs),
-            ret_expr(Map1, merge_bindings(Bs2, Bs1), RBs);
-        _ ->
-            erlang:raise(error, {badarg,Map0}, stacktrace())
-    end;
+    {Vs,Bs2} = eval_map_fields(Es, Bs0, Lf, Ef),
+    _ = maps:put(k, v, Map0),			%Validate map.
+    Map1 = lists:foldl(fun ({map_assoc,K,V}, Mi) ->
+			       maps:put(K, V, Mi);
+			   ({map_exact,K,V}, Mi) ->
+			       maps:update(K, V, Mi)
+		       end, Map0, Vs),
+    ret_expr(Map1, merge_bindings(Bs2, Bs1), RBs);
 expr({map,_,Es}, Bs0, Lf, Ef, RBs) ->
     {Vs,Bs} = eval_map_fields(Es, Bs0, Lf, Ef),
     ret_expr(lists:foldl(fun
@@ -483,12 +479,13 @@ expr({value,_,Val}, Bs, _Lf, _Ef, RBs) ->    % Special case straight values.
 
 find_maxline(LC) ->
     put('$erl_eval_max_line', 0),
-    F = fun(L) ->
+    F = fun(A) ->
+                L = erl_anno:line(A),
                 case is_integer(L) and (L > get('$erl_eval_max_line')) of
                     true -> put('$erl_eval_max_line', L);
                     false -> ok
                 end end,
-    _ = erl_lint:modify_line(LC, F),
+    _ = erl_parse:map_anno(F, LC),
     erase('$erl_eval_max_line').
 
 hide_calls(LC, MaxLine) ->
@@ -498,14 +495,16 @@ hide_calls(LC, MaxLine) ->
 
 %% v/1 and local calls are hidden.
 hide({value,L,V}, Id, D) ->
-    {{atom,Id,ok}, Id+1, dict:store(Id, {value,L,V}, D)};
+    A = erl_anno:new(Id),
+    {{atom,A,ok}, Id+1, dict:store(Id, {value,L,V}, D)};
 hide({call,L,{atom,_,N}=Atom,Args}, Id0, D0) ->
     {NArgs, Id, D} = hide(Args, Id0, D0),
     C = case erl_internal:bif(N, length(Args)) of
             true ->
                 {call,L,Atom,NArgs};
             false -> 
-                {call,Id,{remote,L,{atom,L,m},{atom,L,f}},NArgs}
+                A = erl_anno:new(Id),
+                {call,A,{remote,L,{atom,L,m},{atom,L,f}},NArgs}
         end,
     {C, Id+1, dict:store(Id, {call,Atom}, D)};
 hide(T0, Id0, D0) when is_tuple(T0) -> 
@@ -518,11 +517,23 @@ hide([E0 | Es0], Id0, D0) ->
 hide(E, Id, D) -> 
     {E, Id, D}.
 
-unhide_calls({atom,Id,ok}, MaxLine, D) when Id > MaxLine ->
-    dict:fetch(Id, D);
-unhide_calls({call,Id,{remote,L,_M,_F},Args}, MaxLine, D) when Id > MaxLine ->
-    {call,Atom} = dict:fetch(Id, D),
-    {call,L,Atom,unhide_calls(Args, MaxLine, D)};
+unhide_calls({atom,A,ok}=E, MaxLine, D) ->
+    L = erl_anno:line(A),
+    if
+        L > MaxLine ->
+            dict:fetch(L, D);
+        true ->
+            E
+    end;
+unhide_calls({call,A,{remote,L,{atom,L,m},{atom,L,f}}=F,Args}, MaxLine, D) ->
+    Line = erl_anno:line(A),
+    if
+        Line > MaxLine ->
+            {call,Atom} = dict:fetch(Line, D),
+            {call,L,Atom,unhide_calls(Args, MaxLine, D)};
+        true ->
+            {call,A,F,unhide_calls(Args, MaxLine, D)}
+    end;
 unhide_calls(T, MaxLine, D) when is_tuple(T) -> 
     list_to_tuple(unhide_calls(tuple_to_list(T), MaxLine, D));
 unhide_calls([E | Es], MaxLine, D) -> 
@@ -1172,7 +1183,7 @@ match_tuple([], _, _, Bs, _BBs) ->
 
 match_map([{map_field_exact, _, K, V}|Fs], Map, Bs0, BBs) ->
     Vm = try
-	{value, Ke, _} = expr(K, new_bindings()),
+	{value, Ke, _} = expr(K, Bs0),
 	maps:get(Ke,Map)
     catch error:_ ->
 	throw(nomatch)
diff --git a/lib/stdlib/src/erl_expand_records.erl b/lib/stdlib/src/erl_expand_records.erl
index 64a00acd88..0d3debae22 100644
--- a/lib/stdlib/src/erl_expand_records.erl
+++ b/lib/stdlib/src/erl_expand_records.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2005-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2005-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -38,8 +38,6 @@
                  checked_ra=[]        % successfully accessed records
                 }).
 
--define(REC_OFFSET, 100000000). % A hundred millions. Also in v3_core.
-
 -spec(module(AbsForms, CompileOptions) -> AbsForms when
       AbsForms :: [erl_parse:abstract_form()],
       CompileOptions :: [compile:option()]).
@@ -149,7 +147,7 @@ pattern({record_index,Line,Name,Field}, St) ->
 pattern({record,Line0,Name,Pfs}, St0) ->
     Fs = record_fields(Name, St0),
     {TMs,St1} = pattern_list(pattern_fields(Fs, Pfs), St0),
-    Line = record_offset(Line0, St1),
+    Line = mark_record(Line0, St1),
     {{tuple,Line,[{atom,Line0,Name} | TMs]},St1};
 pattern({bin,Line,Es0}, St0) ->
     {Es1,St1} = pattern_bin(Es0, St0),
@@ -243,7 +241,7 @@ record_test_in_guard(Line, Term, Name, St) ->
             expr({atom,Line,false}, St);
         false ->
             Fs = record_fields(Name, St),
-            NLine = neg_line(Line),
+            NLine = no_compiler_warning(Line),
             expr({call,NLine,{remote,NLine,{atom,NLine,erlang},{atom,NLine,is_record}},
                   [Term,{atom,Line,Name},{integer,Line,length(Fs)+1}]},
                  St)
@@ -269,7 +267,7 @@ record_test_in_body(Line, Expr, Name, St0) ->
     %% evaluate to a tuple properly.
     Fs = record_fields(Name, St0),
     {Var,St} = new_var(Line, St0),
-    NLine = neg_line(Line),
+    NLine = no_compiler_warning(Line),
     expr({block,Line,
           [{match,Line,Var,Expr},
            {call,NLine,{remote,NLine,{atom,NLine,erlang},
@@ -333,7 +331,7 @@ expr({record_index,Line,Name,F}, St) ->
     I = index_expr(Line, F, Name, record_fields(Name, St)),
     expr(I, St);
 expr({record,Line0,Name,Is}, St) ->
-    Line = record_offset(Line0, St),
+    Line = mark_record(Line0, St),
     expr({tuple,Line,[{atom,Line0,Name} |
                       record_inits(record_fields(Name, St), Is)]},
          St);
@@ -384,21 +382,11 @@ expr({call,Line,{tuple,_,[{atom,_,erlang},{atom,_,is_record}]},
 expr({call,Line,{atom,_La,N}=Atom,As0}, St0) ->
     {As,St1} = expr_list(As0, St0),
     Ar = length(As),
-    case erl_internal:bif(N, Ar) of
-        true ->
-            {{call,Line,Atom,As},St1};
-        false ->
-            case imported(N, Ar, St1) of
-                {yes,_Mod} ->
-                    {{call,Line,Atom,As},St1};
-                no ->
-                    case {N,Ar} of
-                        {record_info,2} ->
-                            record_info_call(Line, As, St1);
-                        _ ->
-                            {{call,Line,Atom,As},St1}
-                    end
-            end
+    case {N,Ar} =:= {record_info,2} andalso not imported(N, Ar, St1) of
+	true ->
+	    record_info_call(Line, As, St1);
+	false ->
+	    {{call,Line,Atom,As},St1}
     end;
 expr({call,Line,{remote,Lr,M,F},As0}, St0) ->
     {[M1,F1 | As1],St1} = expr_list([M,F | As0], St0),
@@ -469,7 +457,7 @@ strict_record_access(E0, St0) ->
 conj([], _E) ->
     empty;
 conj([{{Name,_Rp},L,R,Sz} | AL], E) ->
-    NL = neg_line(L),
+    NL = no_compiler_warning(L),
     T1 = {op,NL,'orelse',
           {call,NL,
 	   {remote,NL,{atom,NL,erlang},{atom,NL,is_record}},
@@ -585,8 +573,8 @@ strict_get_record_field(Line, R, {atom,_,F}=Index, Name, St0) ->
             Fs = record_fields(Name, St),
             I = index_expr(F, Fs, 2),
             P = record_pattern(2, I, Var, length(Fs)+1, Line, [{atom,Line,Name}]),
-            NLine = neg_line(Line),
-            RLine = record_offset(NLine, St),
+            NLine = no_compiler_warning(Line),
+            RLine = mark_record(NLine, St),
 	    E = {'case',NLine,R,
 		     [{clause,NLine,[{tuple,RLine,P}],[],[Var]},
 		      {clause,NLine,[{var,NLine,'_'}],[],
@@ -600,7 +588,8 @@ strict_get_record_field(Line, R, {atom,_,F}=Index, Name, St0) ->
             I = index_expr(Line, Index, Name, Fs),
             {ExpR,St1}  = expr(R, St0),
             %% Just to make comparison simple:
-            ExpRp = erl_lint:modify_line(ExpR, fun(_L) -> 0 end),
+            A0 = erl_anno:new(0),
+            ExpRp = erl_parse:map_anno(fun(_A) -> A0 end, ExpR),
             RA = {{Name,ExpRp},Line,ExpR,length(Fs)+1},
             St2 = St1#exprec{strict_ra = [RA | St1#exprec.strict_ra]},
             {{call,Line,
@@ -701,8 +690,8 @@ record_update(R, Name, Fs, Us0, St0) ->
 
 record_match(R, Name, Lr, Fs, Us, St0) ->
     {Ps,News,St1} = record_upd_fs(Fs, Us, St0),
-    NLr = neg_line(Lr),
-    RLine = record_offset(Lr, St1),
+    NLr = no_compiler_warning(Lr),
+    RLine = mark_record(Lr, St1),
     {{'case',Lr,R,
       [{clause,Lr,[{tuple,RLine,[{atom,Lr,Name} | Ps]}],[],
         [{tuple,RLine,[{atom,Lr,Name} | News]}]},
@@ -733,8 +722,8 @@ record_setel(R, Name, Fs, Us0) ->
     Us = [T || {_,T} <- Us2],
     Lr = element(2, hd(Us)),
     Wildcards = duplicate(length(Fs), {var,Lr,'_'}),
-    NLr = neg_line(Lr),
-    %% Note: calling record_offset() here is not necessary since it is
+    NLr = no_compiler_warning(Lr),
+    %% Note: calling mark_record() here is not necessary since it is
     %% targeted at Dialyzer which always calls the compiler with
     %% 'strict_record_updates' meaning that record_setel() will never
     %% be called.
@@ -832,10 +821,7 @@ add_imports(Mod, [F | Fs], Is) ->
 add_imports(_, [], Is) -> Is.
 
 imported(F, A, St) ->
-    case orddict:find({F,A}, St#exprec.imports) of
-        {ok,Mod} -> {yes,Mod};
-        error -> no
-    end.
+    orddict:is_key({F,A}, St#exprec.imports).
 
 %%%
 %%% Replace is_record/3 in guards with matching if possible.
@@ -969,12 +955,11 @@ opt_remove_2({call,Line,{atom,_,is_record},
     end;
 opt_remove_2(A, _) -> A.
 
-neg_line(L) ->
-    erl_parse:set_line(L, fun(Line) -> -abs(Line) end).
+no_compiler_warning(Anno) ->
+    erl_anno:set_generated(true, Anno).
 
-record_offset(L, St) ->
+mark_record(Anno, St) ->
     case lists:member(dialyzer, St#exprec.compile) of
-        true when L >= 0 -> L+?REC_OFFSET;
-        true when L < 0  -> L-?REC_OFFSET;
-        false -> L
+        true -> erl_anno:set_record(true, Anno);
+        false -> Anno
     end.
diff --git a/lib/stdlib/src/erl_internal.erl b/lib/stdlib/src/erl_internal.erl
index edfb097de0..2bf8b86c23 100644
--- a/lib/stdlib/src/erl_internal.erl
+++ b/lib/stdlib/src/erl_internal.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1998-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1998-2014. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -51,6 +51,8 @@
 	 type_test/2,new_type_test/2,old_type_test/2,old_bif/2]).
 -export([arith_op/2,bool_op/2,comp_op/2,list_op/2,send_op/2,op_type/2]).
 
+-export([is_type/2]).
+
 %%---------------------------------------------------------------------------
 
 %%  Erlang builtin functions allowed in guards.
@@ -293,6 +295,7 @@ bif(garbage_collect, 1) -> true;
 bif(garbage_collect, 2) -> true;
 bif(get, 0) -> true;
 bif(get, 1) -> true;
+bif(get_keys, 0) -> true;
 bif(get_keys, 1) -> true;
 bif(group_leader, 0) -> true;
 bif(group_leader, 2) -> true;
@@ -530,3 +533,53 @@ old_bif(unlink, 1) -> true;
 old_bif(unregister, 1) -> true;
 old_bif(whereis, 1) -> true;
 old_bif(Name, A) when is_atom(Name), is_integer(A) -> false.
+
+-spec is_type(Name, NumberOfTypeVariables) -> boolean() when
+      Name :: atom(),
+      NumberOfTypeVariables :: non_neg_integer().
+%% Returns true if Name/NumberOfTypeVariables is a predefined type.
+
+is_type(any, 0) -> true;
+is_type(arity, 0) -> true;
+is_type(atom, 0) -> true;
+is_type(binary, 0) -> true;
+is_type(bitstring, 0) -> true;
+is_type(bool, 0) -> true;
+is_type(boolean, 0) -> true;
+is_type(byte, 0) -> true;
+is_type(char, 0) -> true;
+is_type(float, 0) -> true;
+is_type(function, 0) -> true;
+is_type(identifier, 0) -> true;
+is_type(integer, 0) -> true;
+is_type(iodata, 0) -> true;
+is_type(iolist, 0) -> true;
+is_type(list, 0) -> true;
+is_type(list, 1) -> true;
+is_type(map, 0) -> true;
+is_type(maybe_improper_list, 0) -> true;
+is_type(maybe_improper_list, 2) -> true;
+is_type(mfa, 0) -> true;
+is_type(module, 0) -> true;
+is_type(neg_integer, 0) -> true;
+is_type(nil, 0) -> true;
+is_type(no_return, 0) -> true;
+is_type(node, 0) -> true;
+is_type(non_neg_integer, 0) -> true;
+is_type(none, 0) -> true;
+is_type(nonempty_improper_list, 2) -> true;
+is_type(nonempty_list, 0) -> true;
+is_type(nonempty_list, 1) -> true;
+is_type(nonempty_maybe_improper_list, 0) -> true;
+is_type(nonempty_maybe_improper_list, 2) -> true;
+is_type(nonempty_string, 0) -> true;
+is_type(number, 0) -> true;
+is_type(pid, 0) -> true;
+is_type(port, 0) -> true;
+is_type(pos_integer, 0) -> true;
+is_type(reference, 0) -> true;
+is_type(string, 0) -> true;
+is_type(term, 0) -> true;
+is_type(timeout, 0) -> true;
+is_type(tuple, 0) -> true;
+is_type(_, _) -> false.
diff --git a/lib/stdlib/src/erl_lint.erl b/lib/stdlib/src/erl_lint.erl
index 39cc03cf7a..b13848c501 100644
--- a/lib/stdlib/src/erl_lint.erl
+++ b/lib/stdlib/src/erl_lint.erl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -34,6 +34,8 @@
 
 -import(lists, [member/2,map/2,foldl/3,foldr/3,mapfoldl/3,all/2,reverse/1]).
 
+-deprecated([{modify_line, 2, next_major_release}]).
+
 %% bool_option(OnOpt, OffOpt, Default, Options) -> boolean().
 %% value_option(Flag, Default, Options) -> Value.
 %% value_option(Flag, Default, OnOpt, OnVal, OffOpt, OffVal, Options) ->
@@ -76,7 +78,7 @@ value_option(Flag, Default, On, OnVal, Off, OffVal, Opts) ->
 %%-define(DEBUGF(X,Y), io:format(X, Y)).
 -define(DEBUGF(X,Y), void).
 
--type line() :: erl_scan:line().     % a convenient alias
+-type line() :: erl_anno:line().     % a convenient alias
 -type fa()   :: {atom(), arity()}.   % function+arity
 -type ta()   :: {atom(), arity()}.   % type+arity
 
@@ -111,25 +113,28 @@ value_option(Flag, Default, On, OnVal, Off, OffVal, Opts) ->
                defined=gb_sets:empty()          %Defined fuctions
                    :: gb_sets:set(fa()),
 	       on_load=[] :: [fa()],		%On-load function
-	       on_load_line=0 :: line(),	%Line for on_load
+	       on_load_line=erl_anno:new(0)	%Line for on_load
+                   :: erl_anno:anno(),
 	       clashes=[],			%Exported functions named as BIFs
                not_deprecated=[],               %Not considered deprecated
                func=[],                         %Current function
                warn_format=0,                   %Warn format calls
 	       enabled_warnings=[],		%All enabled warnings (ordset).
+               nowarn_bif_clash=[],             %All no warn bif clashes (ordset).
                errors=[],                       %Current errors
                warnings=[],                     %Current warnings
                file = ""        :: string(),	%From last file attribute
                recdef_top=false :: boolean(),	%true in record initialisation
 						%outside any fun or lc
                xqlc= false :: boolean(),	%true if qlc.hrl included
-               new = false :: boolean(),	%Has user-defined 'new/N'
                called= [] :: [{fa(),line()}],   %Called functions
                usage = #usage{}		:: #usage{},
                specs = dict:new()               %Type specifications
                    :: dict:dict(mfa(), line()),
                callbacks = dict:new()           %Callback types
                    :: dict:dict(mfa(), line()),
+               optional_callbacks = dict:new()  %Optional callbacks
+                   :: dict:dict(mfa(), line()),
                types = dict:new()               %Type definitions
                    :: dict:dict(ta(), #typeinfo{}),
                exp_types=gb_sets:empty()        %Exported types
@@ -138,7 +143,7 @@ value_option(Flag, Default, On, OnVal, Off, OffVal, Opts) ->
 
 -type lint_state() :: #lint{}.
 -type error_description() :: term().
--type error_info() :: {erl_scan:line(), module(), error_description()}.
+-type error_info() :: {erl_anno:line(), module(), error_description()}.
 
 %% format_error(Error)
 %%  Return a string describing the error.
@@ -225,6 +230,8 @@ format_error({deprecated, MFA, ReplacementMFA, Rel}) ->
 		  [format_mfa(MFA), Rel, format_mfa(ReplacementMFA)]);
 format_error({deprecated, {M1, F1, A1}, String}) when is_list(String) ->
     io_lib:format("~p:~p/~p: ~s", [M1, F1, A1, String]);
+format_error({deprecated_type, {M1, F1, A1}, String}) when is_list(String) ->
+    io_lib:format("~p:~p~s: ~s", [M1, F1, gen_type_paren(A1), String]);
 format_error({removed, MFA, ReplacementMFA, Rel}) ->
     io_lib:format("call to ~s will fail, since it was removed in ~s; "
 		  "use ~s", [format_mfa(MFA), Rel, format_mfa(ReplacementMFA)]);
@@ -237,10 +244,7 @@ format_error({too_many_arguments,Arity}) ->
 		  "maximum allowed is ~w", [Arity,?MAX_ARGUMENTS]);
 %% --- patterns and guards ---
 format_error(illegal_pattern) -> "illegal pattern";
-format_error(illegal_map_key) ->
-    "illegal map key";
-format_error({illegal_map_key_variable,K}) ->
-    io_lib:format("illegal use of variable ~w in map",[K]);
+format_error(illegal_map_key) -> "illegal map key in pattern";
 format_error(illegal_bin_pattern) ->
     "binary patterns cannot be matched in parallel using '='";
 format_error(illegal_expr) -> "illegal expression";
@@ -313,13 +317,20 @@ format_error({undefined_behaviour,Behaviour}) ->
     io_lib:format("behaviour ~w undefined", [Behaviour]);
 format_error({undefined_behaviour_callbacks,Behaviour}) ->
     io_lib:format("behaviour ~w callback functions are undefined",
-                  [Behaviour]);
+		  [Behaviour]);
 format_error({ill_defined_behaviour_callbacks,Behaviour}) ->
     io_lib:format("behaviour ~w callback functions erroneously defined",
 		  [Behaviour]);
+format_error({ill_defined_optional_callbacks,Behaviour}) ->
+    io_lib:format("behaviour ~w optional callback functions erroneously defined",
+		  [Behaviour]);
 format_error({behaviour_info, {_M,F,A}}) ->
     io_lib:format("cannot define callback attibute for ~w/~w when "
                   "behaviour_info is defined",[F,A]);
+format_error({redefine_optional_callback, {F, A}}) ->
+    io_lib:format("optional callback ~w/~w duplicated", [F, A]);
+format_error({undefined_callback, {_M, F, A}}) ->
+    io_lib:format("callback ~w/~w is undefined", [F, A]);
 %% --- types and specs ---
 format_error({singleton_typevar, Name}) ->
     io_lib:format("type variable ~w is only used once (is unbound)", [Name]);
@@ -331,14 +342,10 @@ format_error({undefined_type, {TypeName, Arity}}) ->
     io_lib:format("type ~w~s undefined", [TypeName, gen_type_paren(Arity)]);
 format_error({unused_type, {TypeName, Arity}}) ->
     io_lib:format("type ~w~s is unused", [TypeName, gen_type_paren(Arity)]);
-%% format_error({new_builtin_type, {TypeName, Arity}}) ->
-%%     io_lib:format("type ~w~s is a new builtin type; "
-%% 		  "its (re)definition is allowed only until the next release",
-%% 		  [TypeName, gen_type_paren(Arity)]);
-format_error({new_var_arity_type, TypeName}) ->
-    io_lib:format("type ~w is a new builtin type; "
+format_error({new_builtin_type, {TypeName, Arity}}) ->
+    io_lib:format("type ~w~s is a new builtin type; "
 		  "its (re)definition is allowed only until the next release",
-		  [TypeName]);
+		  [TypeName, gen_type_paren(Arity)]);
 format_error({builtin_type, {TypeName, Arity}}) ->
     io_lib:format("type ~w~s is a builtin type; it cannot be redefined",
 		  [TypeName, gen_type_paren(Arity)]);
@@ -352,10 +359,14 @@ format_error({type_syntax, Constr}) ->
     io_lib:format("bad ~w type", [Constr]);
 format_error({redefine_spec, {M, F, A}}) ->
     io_lib:format("spec for ~w:~w/~w already defined", [M, F, A]);
-format_error({redefine_callback, {M, F, A}}) ->
-    io_lib:format("callback ~w:~w/~w already defined", [M, F, A]);
-format_error({spec_fun_undefined, {M, F, A}}) ->
-    io_lib:format("spec for undefined function ~w:~w/~w", [M, F, A]);
+format_error({redefine_spec, {F, A}}) ->
+    io_lib:format("spec for ~w/~w already defined", [F, A]);
+format_error({redefine_callback, {F, A}}) ->
+    io_lib:format("callback ~w/~w already defined", [F, A]);
+format_error({bad_callback, {M, F, A}}) ->
+    io_lib:format("explicit module not allowed for callback ~w:~w/~w ", [M, F, A]);
+format_error({spec_fun_undefined, {F, A}}) ->
+    io_lib:format("spec for undefined function ~w/~w", [F, A]);
 format_error({missing_spec, {F,A}}) ->
     io_lib:format("missing specification for function ~w/~w", [F, A]);
 format_error(spec_wrong_arity) ->
@@ -383,9 +394,7 @@ format_error({underspecified_opaque, {TypeName, Arity}}) ->
                   [TypeName, gen_type_paren(Arity)]);
 %% --- obsolete? unused? ---
 format_error({format_error, {Fmt, Args}}) ->
-    io_lib:format(Fmt, Args);
-format_error({mnemosyne, What}) ->
-    "mnemosyne " ++ What ++ ", missing transformation".
+    io_lib:format(Fmt, Args).
 
 gen_type_paren(Arity) when is_integer(Arity), Arity >= 0 ->
     gen_type_paren_1(Arity, ")").
@@ -421,13 +430,13 @@ exprs(Exprs, BindingsList) ->
 
 exprs_opt(Exprs, BindingsList, Opts) ->
     {St0,Vs} = foldl(fun({{record,_SequenceNumber,_Name},Attr0}, {St1,Vs1}) ->
-                             Attr = zip_file_and_line(Attr0, "none"),
+                             Attr = set_file(Attr0, "none"),
 			     {attribute_state(Attr, St1),Vs1};
                         ({V,_}, {St1,Vs1}) ->
 			     {St1,[{V,{bound,unused,[]}} | Vs1]}
 		     end, {start("nofile",Opts),[]}, BindingsList),
     Vt = orddict:from_list(Vs),
-    {_Evt,St} = exprs(zip_file_and_line(Exprs, "nofile"), Vt, St0),
+    {_Evt,St} = exprs(set_file(Exprs, "nofile"), Vt, St0),
     return_status(St).
 
 used_vars(Exprs, BindingsList) ->
@@ -435,7 +444,7 @@ used_vars(Exprs, BindingsList) ->
 		  ({V,_Val}, Vs0) -> [{V,{bound,unused,[]}} | Vs0]
 	       end, [], BindingsList),
     Vt = orddict:from_list(Vs),
-    {Evt,_St} = exprs(zip_file_and_line(Exprs, "nofile"), Vt, start()),
+    {Evt,_St} = exprs(set_file(Exprs, "nofile"), Vt, start()),
     {ok, foldl(fun({V,{_,used,_}}, L) -> [V | L];
                   (_, L) -> L
 	       end, [], Evt)}.
@@ -560,6 +569,7 @@ start(File, Opts) ->
           warn_format = value_option(warn_format, 1, warn_format, 1,
 				     nowarn_format, 0, Opts),
 	  enabled_warnings = Enabled,
+          nowarn_bif_clash = nowarn_function(nowarn_bif_clash, Opts),
           file = File
          }.
 
@@ -599,34 +609,39 @@ pack_warnings(Ws) ->
 %% add_warning(ErrorDescriptor, State) -> State'
 %% add_warning(Line, Error, State) -> State'
 
-add_error(E, St) -> St#lint{errors=[{St#lint.file,E}|St#lint.errors]}.
+add_error(E, St) -> add_lint_error(E, St#lint.file, St).
+
+add_error(Anno, E, St) ->
+    {File,Location} = loc(Anno, St),
+    add_lint_error({Location,erl_lint,E}, File, St).
 
-add_error(FileLine, E, St) ->
-    {File,Location} = loc(FileLine),
-    add_error({Location,erl_lint,E}, St#lint{file = File}).
+add_lint_error(E, File, St) ->
+    St#lint{errors=[{File,E}|St#lint.errors]}.
 
-add_warning(W, St) -> St#lint{warnings=[{St#lint.file,W}|St#lint.warnings]}.
+add_warning(W, St) -> add_lint_warning(W, St#lint.file, St).
 
 add_warning(FileLine, W, St) ->
-    {File,Location} = loc(FileLine),
-    add_warning({Location,erl_lint,W}, St#lint{file = File}).
-
-loc(L) ->
-    case erl_parse:get_attribute(L, location) of
-        {location,{{File,Line},Column}} ->
-            {File,{Line,Column}};
-        {location,{File,Line}} ->
-            {File,Line}
+    {File,Location} = loc(FileLine, St),
+    add_lint_warning({Location,erl_lint,W}, File, St).
+
+add_lint_warning(W, File, St) ->
+    St#lint{warnings=[{File,W}|St#lint.warnings]}.
+
+loc(Anno, St) ->
+    Location = erl_anno:location(Anno),
+    case erl_anno:file(Anno) of
+        undefined -> {St#lint.file,Location};
+        File -> {File,Location}
     end.
 
 %% forms([Form], State) -> State'
 
 forms(Forms0, St0) ->
     Forms = eval_file_attribute(Forms0, St0),
+    %% Annotations from now on include the 'file' item.
     Locals = local_functions(Forms),
     AutoImportSuppressed = auto_import_suppressed(St0#lint.compile),
     StDeprecated = disallowed_compile_flags(Forms,St0),
-    %% Line numbers are from now on pairs {File,Line}.
     St1 = includes_qlc_hrl(Forms, StDeprecated#lint{locals = Locals,
 						    no_auto = AutoImportSuppressed}),
     St2 = bif_clashes(Forms, St1),
@@ -634,8 +649,6 @@ forms(Forms0, St0) ->
     St4 = foldl(fun form/2, pre_scan(Forms, St3), Forms),
     post_traversal_check(Forms, St4).
 
-pre_scan([{function,_L,new,_A,_Cs} | Fs], St) ->
-    pre_scan(Fs, St#lint{new=true});
 pre_scan([{attribute,L,compile,C} | Fs], St) ->
     case is_warn_enabled(export_all, St) andalso
 	member(export_all, lists:flatten([C])) of
@@ -662,15 +675,24 @@ eval_file_attribute(Forms, St) ->
 eval_file_attr([{attribute,_L,file,{File,_Line}}=Form | Forms], _File) ->
     [Form | eval_file_attr(Forms, File)];
 eval_file_attr([Form0 | Forms], File) ->
-    Form = zip_file_and_line(Form0, File),
+    Form = set_form_file(Form0, File),
     [Form | eval_file_attr(Forms, File)];
 eval_file_attr([], _File) ->
     [].
 
-zip_file_and_line(T, File) ->
-    F0 = fun(Line) -> {File,Line} end,
-    F = fun(L) -> erl_parse:set_line(L, F0) end,
-    modify_line(T, F).
+%% Sets the file only on the form. This is used on post-traversal.
+%% For the remaining of the AST we rely on #lint.file.
+
+set_form_file({attribute,L,K,V}, File) ->
+    {attribute,erl_anno:set_file(File, L),K,V};
+set_form_file({function,L,N,A,C}, File) ->
+    {function,erl_anno:set_file(File, L),N,A,C};
+set_form_file(Form, _File) ->
+    Form.
+
+set_file(T, File) ->
+    F = fun(Anno) -> erl_anno:set_file(File, Anno) end,
+    erl_parse:map_anno(F, T).
 
 %% form(Form, State) -> State'
 %%  Check a form returning the updated State. Handle generic cases here.
@@ -727,6 +749,8 @@ attribute_state({attribute,L,spec,{Fun,Types}}, St) ->
     spec_decl(L, Fun, Types, St);
 attribute_state({attribute,L,callback,{Fun,Types}}, St) ->
     callback_decl(L, Fun, Types, St);
+attribute_state({attribute,L,optional_callbacks,Es}, St) ->
+    optional_callbacks(L, Es, St);
 attribute_state({attribute,L,on_load,Val}, St) ->
     on_load(L, Val, St);
 attribute_state({attribute,_L,_Other,_Val}, St) -> % Ignore others
@@ -738,6 +762,8 @@ attribute_state(Form, St) ->
 %%      State'
 %%  Allow for record, type and opaque type definitions and spec
 %%  declarations to be intersperced within function definitions.
+%%  Dialyzer attributes are also allowed everywhere, but are not
+%%  checked at all.
 
 function_state({attribute,L,record,{Name,Fields}}, St) ->
     record_def(L, Name, Fields, St);
@@ -747,12 +773,12 @@ function_state({attribute,L,opaque,{TypeName,TypeDef,Args}}, St) ->
     type_def(opaque, L, TypeName, TypeDef, Args, St);
 function_state({attribute,L,spec,{Fun,Types}}, St) ->
     spec_decl(L, Fun, Types, St);
+function_state({attribute,_L,dialyzer,_Val}, St) ->
+    St;
 function_state({attribute,La,Attr,_Val}, St) ->
     add_error(La, {attribute,Attr}, St);
 function_state({function,L,N,A,Cs}, St) ->
     function(L, N, A, Cs, St);
-function_state({rule,L,_N,_A,_Cs}, St) ->
-    add_error(L, {mnemosyne,"rule"}, St);
 function_state({eof,L}, St) -> eof(L, St).
 
 %% eof(LastLine, State) ->
@@ -763,8 +789,7 @@ eof(_Line, St0) ->
 
 %% bif_clashes(Forms, State0) -> State.
 
-bif_clashes(Forms, St) ->
-    Nowarn = nowarn_function(nowarn_bif_clash, St#lint.compile),
+bif_clashes(Forms, #lint{nowarn_bif_clash=Nowarn} = St) ->
     Clashes0 = [{Name,Arity} || {function,_L,Name,Arity,_Cs} <- Forms,
                                 erl_internal:bif(Name, Arity)],
     Clashes = ordsets:subtract(ordsets:from_list(Clashes0), Nowarn),
@@ -788,9 +813,11 @@ not_deprecated(Forms, St0) ->
 disallowed_compile_flags(Forms, St0) ->
     %% There are (still) no line numbers in St0#lint.compile.
     Errors0 =  [ {St0#lint.file,{L,erl_lint,disallowed_nowarn_bif_clash}} ||
-		    {attribute,[{line,{_,L}}],compile,nowarn_bif_clash} <- Forms ],
+		    {attribute,A,compile,nowarn_bif_clash} <- Forms,
+                   {_,L} <- [loc(A, St0)] ],
     Errors1 = [ {St0#lint.file,{L,erl_lint,disallowed_nowarn_bif_clash}} ||
-		    {attribute,[{line,{_,L}}],compile,{nowarn_bif_clash, {_,_}}} <- Forms ],
+		    {attribute,A,compile,{nowarn_bif_clash, {_,_}}} <- Forms,
+                   {_,L} <- [loc(A, St0)] ],
     Disabled = (not is_warn_enabled(bif_clash, St0)),
     Errors = if
 		   Disabled andalso Errors0 =:= [] ->
@@ -834,57 +861,73 @@ check_behaviour(St0) ->
 %%  Check behaviours for existence and defined functions.
 
 behaviour_check(Bs, St0) ->
-    {AllBfs,St1} = all_behaviour_callbacks(Bs, [], St0),
-    St = behaviour_missing_callbacks(AllBfs, St1),
+    {AllBfs0, St1} = all_behaviour_callbacks(Bs, [], St0),
+    St = behaviour_missing_callbacks(AllBfs0, St1),
+    Exports = exports(St0),
+    F = fun(Bfs, OBfs) ->
+                [B || B <- Bfs,
+                      not lists:member(B, OBfs)
+                      orelse gb_sets:is_member(B, Exports)]
+        end,
+    %% After fixing missing callbacks new warnings may be emitted.
+    AllBfs = [{Item,F(Bfs0, OBfs0)} || {Item,Bfs0,OBfs0} <- AllBfs0],
     behaviour_conflicting(AllBfs, St).
 
 all_behaviour_callbacks([{Line,B}|Bs], Acc, St0) ->
-    {Bfs0,St} = behaviour_callbacks(Line, B, St0),
-    all_behaviour_callbacks(Bs, [{{Line,B},Bfs0}|Acc], St);
+    {Bfs0,OBfs0,St} = behaviour_callbacks(Line, B, St0),
+    all_behaviour_callbacks(Bs, [{{Line,B},Bfs0,OBfs0}|Acc], St);
 all_behaviour_callbacks([], Acc, St) -> {reverse(Acc),St}.
 
 behaviour_callbacks(Line, B, St0) ->
     try B:behaviour_info(callbacks) of
-        Funcs when is_list(Funcs) ->
-            All = all(fun({FuncName, Arity}) ->
-                              is_atom(FuncName) andalso is_integer(Arity);
-			 ({FuncName, Arity, Spec}) ->
-			      is_atom(FuncName) andalso is_integer(Arity)
-				  andalso is_list(Spec);
-                         (_Other) ->
-                              false
-                      end,
-                      Funcs),
-	    MaybeRemoveSpec = fun({_F,_A}=FA) -> FA;
-				 ({F,A,_S}) -> {F,A};
-				 (Other) -> Other
-			      end,
-            if
-                All =:= true ->
-                    {[MaybeRemoveSpec(F) || F <- Funcs], St0};
+        undefined ->
+            St1 = add_warning(Line, {undefined_behaviour_callbacks, B}, St0),
+            {[], [], St1};
+        Funcs ->
+            case is_fa_list(Funcs) of
                 true ->
+                    try B:behaviour_info(optional_callbacks) of
+                        undefined ->
+                            {Funcs, [], St0};
+                        OptFuncs ->
+                            %% OptFuncs should always be OK thanks to
+                            %% sys_pre_expand.
+                            case is_fa_list(OptFuncs) of
+                                true ->
+                                    {Funcs, OptFuncs, St0};
+                                false ->
+                                    W = {ill_defined_optional_callbacks, B},
+                                    St1 = add_warning(Line, W, St0),
+                                    {Funcs, [], St1}
+                            end
+                    catch
+                        _:_ ->
+                            {Funcs, [], St0}
+                    end;
+                false ->
                     St1 = add_warning(Line,
-                                      {ill_defined_behaviour_callbacks,B},
+                                      {ill_defined_behaviour_callbacks, B},
                                       St0),
-                    {[], St1}
-            end;
-        undefined ->
-            St1 = add_warning(Line, {undefined_behaviour_callbacks,B}, St0),
-            {[], St1};
-        _Other ->
-            St1 = add_warning(Line, {ill_defined_behaviour_callbacks,B}, St0),
-            {[], St1}
+                    {[], [], St1}
+            end
     catch
         _:_ ->
-            St1 = add_warning(Line, {undefined_behaviour,B}, St0),
-            {[], St1}
+            St1 = add_warning(Line, {undefined_behaviour, B}, St0),
+            {[], [], St1}
     end.
 
-behaviour_missing_callbacks([{{Line,B},Bfs}|T], St0) ->
+behaviour_missing_callbacks([{{Line,B},Bfs0,OBfs}|T], St0) ->
+    Bfs = ordsets:subtract(ordsets:from_list(Bfs0), ordsets:from_list(OBfs)),
     Exports = gb_sets:to_list(exports(St0)),
-    Missing = ordsets:subtract(ordsets:from_list(Bfs), Exports),
+    Missing = ordsets:subtract(Bfs, Exports),
     St = foldl(fun (F, S0) ->
-		       add_warning(Line, {undefined_behaviour_func,F,B}, S0)
+                       case is_fa(F) of
+                           true ->
+                               M = {undefined_behaviour_func,F,B},
+                               add_warning(Line, M, S0);
+                           false ->
+                               S0 % ill_defined_behaviour_callbacks
+                       end
 	       end, St0, Missing),
     behaviour_missing_callbacks(T, St);
 behaviour_missing_callbacks([], St) -> St.
@@ -899,7 +942,7 @@ behaviour_conflicting(AllBfs, St) ->
     behaviour_add_conflicts(R, St).
 
 behaviour_add_conflicts([{Cb,[{FirstLoc,FirstB}|Cs]}|T], St0) ->
-    FirstL = element(2, loc(FirstLoc)),
+    FirstL = element(2, loc(FirstLoc, St0)),
     St = behaviour_add_conflict(Cs, Cb, FirstL, FirstB, St0),
     behaviour_add_conflicts(T, St);
 behaviour_add_conflicts([], St) -> St.
@@ -1046,10 +1089,9 @@ check_undefined_types(#lint{usage=Usage,types=Def}=St0) ->
     Used = Usage#usage.used_types,
     UTAs = dict:fetch_keys(Used),
     Undef = [{TA,dict:fetch(TA, Used)} ||
-		{T,_}=TA <- UTAs,
+		TA <- UTAs,
 		not dict:is_key(TA, Def),
-		not is_default_type(TA),
-                not is_newly_introduced_var_arity_type(T)],
+		not is_default_type(TA)],
     foldl(fun ({TA,L}, St) ->
 		  add_error(L, {undefined_type,TA}, St)
 	  end, St0, Undef).
@@ -1118,7 +1160,7 @@ check_unused_records(Forms, St0) ->
                           end, St0#lint.records, UsedRecords),
             Unused = [{Name,FileLine} ||
                          {Name,{FileLine,_Fields}} <- dict:to_list(URecs),
-                         element(1, loc(FileLine)) =:= FirstFile],
+                         element(1, loc(FileLine, St0)) =:= FirstFile],
             foldl(fun ({N,L}, St) ->
                           add_warning(L, {unused_record, N}, St)
                   end, St0, Unused);
@@ -1127,19 +1169,29 @@ check_unused_records(Forms, St0) ->
     end.
 
 check_callback_information(#lint{callbacks = Callbacks,
-				 defined = Defined} = State) ->
-    case gb_sets:is_member({behaviour_info,1}, Defined) of
-	false -> State;
+                                 optional_callbacks = OptionalCbs,
+				 defined = Defined} = St0) ->
+    OptFun = fun({MFA, Line}, St) ->
+                     case dict:is_key(MFA, Callbacks) of
+                         true ->
+                             St;
+                         false ->
+                             add_error(Line, {undefined_callback, MFA}, St)
+                     end
+             end,
+    St1 = lists:foldl(OptFun, St0, dict:to_list(OptionalCbs)),
+    case gb_sets:is_member({behaviour_info, 1}, Defined) of
+	false -> St1;
 	true ->
 	    case dict:size(Callbacks) of
-		0 -> State;
+		0 -> St1;
 		_ ->
 		    CallbacksList = dict:to_list(Callbacks),
 		    FoldL =
-			fun({Fa,Line},St) ->
+			fun({Fa, Line}, St) ->
 				add_error(Line, {behaviour_info, Fa}, St)
 			end,
-		    lists:foldl(FoldL, State, CallbacksList)
+		    lists:foldl(FoldL, St1, CallbacksList)
 	    end
     end.
 
@@ -1266,7 +1318,7 @@ imported(F, A, St) ->
         error -> no
     end.
 
--spec on_load(line(), fa(), lint_state()) -> lint_state().
+-spec on_load(erl_anno:anno(), fa(), lint_state()) -> lint_state().
 %%  Check an on_load directive and remember it.
 
 on_load(Line, {Name,Arity}=Fa, #lint{on_load=OnLoad0}=St0)
@@ -1301,14 +1353,15 @@ check_on_load(St) -> St.
 -spec call_function(line(), atom(), arity(), lint_state()) -> lint_state().
 %%  Add to both called and calls.
 
-call_function(Line, F, A, #lint{usage=Usage0,called=Cd,func=Func}=St) ->
+call_function(Line, F, A, #lint{usage=Usage0,called=Cd,func=Func,file=File}=St) ->
     #usage{calls = Cs} = Usage0,
     NA = {F,A},
     Usage = case Cs of
 		undefined -> Usage0;
 		_ -> Usage0#usage{calls=dict:append(Func, NA, Cs)}
 	    end,
-    St#lint{called=[{NA,Line}|Cd], usage=Usage}.
+    Anno = erl_anno:set_file(File, Line),
+    St#lint{called=[{NA,Anno}|Cd], usage=Usage}.
 
 %% function(Line, Name, Arity, Clauses, State) -> State.
 
@@ -1404,20 +1457,7 @@ pattern({cons,_Line,H,T}, Vt, Old,  Bvt, St0) ->
 pattern({tuple,_Line,Ps}, Vt, Old, Bvt, St) ->
     pattern_list(Ps, Vt, Old, Bvt, St);
 pattern({map,_Line,Ps}, Vt, Old, Bvt, St) ->
-    foldl(fun
-	    ({map_field_assoc,L,_,_}, {Psvt,Bvt0,St0}) ->
-		{Psvt,Bvt0,add_error(L, illegal_pattern, St0)};
-	    ({map_field_exact,L,KP,VP}, {Psvt,Bvt0,St0}) ->
-		case is_valid_map_key(KP, pattern, St0) of
-		    true ->
-			{Pvt,Bvt1,St1} = pattern(VP, Vt, Old, Bvt, St0),
-			{vtmerge_pat(Pvt, Psvt),vtmerge_pat(Bvt0, Bvt1), St1};
-		    false ->
-			{Psvt,Bvt0,add_error(L, illegal_map_key, St0)};
-		    {false,variable,Var} ->
-			{Psvt,Bvt0,add_error(L, {illegal_map_key_variable,Var}, St0)}
-		end
-	end, {[],[],St}, Ps);
+    pattern_map(Ps, Vt, Old, Bvt, St);
 %%pattern({struct,_Line,_Tag,Ps}, Vt, Old, Bvt, St) ->
 %%    pattern_list(Ps, Vt, Old, Bvt, St);
 pattern({record_index,Line,Name,Field}, _Vt, _Old, _Bvt, St) ->
@@ -1571,6 +1611,21 @@ is_pattern_expr_1({op,_Line,Op,A1,A2}) ->
     erl_internal:arith_op(Op, 2) andalso all(fun is_pattern_expr/1, [A1,A2]);
 is_pattern_expr_1(_Other) -> false.
 
+pattern_map(Ps, Vt, Old, Bvt, St) ->
+    foldl(fun
+	    ({map_field_assoc,L,_,_}, {Psvt,Bvt0,St0}) ->
+		{Psvt,Bvt0,add_error(L, illegal_pattern, St0)};
+	    ({map_field_exact,L,K,V}, {Psvt,Bvt0,St0}) ->
+		case is_valid_map_key(K) of
+		    true ->
+			{Kvt,St1} = expr(K, Vt, St0),
+			{Vvt,Bvt2,St2} = pattern(V, Vt, Old, Bvt, St1),
+			{vtmerge_pat(vtmerge_pat(Kvt, Vvt), Psvt), vtmerge_pat(Bvt0, Bvt2), St2};
+		    false ->
+			{Psvt,Bvt0,add_error(L, illegal_map_key, St0)}
+		end
+	end, {[],[],St}, Ps).
+
 %% pattern_bin([Element], VarTable, Old, BinVarTable, State) ->
 %%           {UpdVarTable,UpdBinVarTable,State}.
 %%  Check a pattern group. BinVarTable are used binsize variables.
@@ -1919,10 +1974,10 @@ is_guard_test(E) ->
 is_guard_test(Expression, Forms) ->
     RecordAttributes = [A || A = {attribute, _, record, _D} <- Forms],
     St0 = foldl(fun(Attr0, St1) ->
-                        Attr = zip_file_and_line(Attr0, "none"),
+                        Attr = set_file(Attr0, "none"),
                         attribute_state(Attr, St1)
                 end, start(), RecordAttributes),
-    is_guard_test2(zip_file_and_line(Expression, "nofile"), St0#lint.records).
+    is_guard_test2(set_file(Expression, "nofile"), St0#lint.records).
 
 %% is_guard_test2(Expression, RecordDefs :: dict:dict()) -> boolean().
 is_guard_test2({call,Line,{atom,Lr,record},[E,A]}, RDs) ->
@@ -2085,8 +2140,8 @@ expr({'receive',Line,Cs,To,ToEs}, Vt, St0) ->
     {Cvt,St3} = icrt_clauses(Cs, Vt, St2),
     %% Csvts = [vtnew(Tevt, Vt)|Cvt],           %This is just NEW variables!
     Csvts = [Tevt|Cvt],
-    {Rvt,St4} = icrt_export(Csvts, Vt, {'receive',Line}, St3),
-    {vtmerge([Tvt,Tevt,Rvt]),St4};
+    Rvt = icrt_export(Csvts, Vt, {'receive',Line}, St3),
+    {vtmerge([Tvt,Tevt,Rvt]),St3};
 expr({'fun',Line,Body}, Vt, St) ->
     %%No one can think funs export!
     case Body of
@@ -2197,21 +2252,20 @@ expr({'try',Line,Es,Scs,Ccs,As}, Vt, St0) ->
     %% passes cannot handle exports in combination with 'after'.
     {Evt0,St1} = exprs(Es, Vt, St0),
     TryLine = {'try',Line},
-    Uvt = vtunsafe(vtnames(vtnew(Evt0, Vt)), TryLine, []),
-    Evt1 = vtupdate(Uvt, vtsubtract(Evt0, Uvt)),
+    Uvt = vtunsafe(TryLine, Evt0, Vt),
+    Evt1 = vtupdate(Uvt, Evt0),
     {Sccs,St2} = icrt_clauses(Scs++Ccs, TryLine, vtupdate(Evt1, Vt), St1),
     Rvt0 = Sccs,
-    Rvt1 = vtupdate(vtunsafe(vtnames(vtnew(Rvt0, Vt)), TryLine, []), Rvt0),
+    Rvt1 = vtupdate(vtunsafe(TryLine, Rvt0, Vt), Rvt0),
     Evt2 = vtmerge(Evt1, Rvt1),
     {Avt0,St} = exprs(As, vtupdate(Evt2, Vt), St2),
-    Avt1 = vtupdate(vtunsafe(vtnames(vtnew(Avt0, Vt)), TryLine, []), Avt0),
+    Avt1 = vtupdate(vtunsafe(TryLine, Avt0, Vt), Avt0),
     Avt = vtmerge(Evt2, Avt1),
     {Avt,St};
 expr({'catch',Line,E}, Vt, St0) ->
     %% No new variables added, flag new variables as unsafe.
-    {Evt,St1} = expr(E, Vt, St0),
-    Uvt = vtunsafe(vtnames(vtnew(Evt, Vt)), {'catch',Line}, []),
-    {vtupdate(Uvt,vtupdate(Evt, Vt)),St1};
+    {Evt,St} = expr(E, Vt, St0),
+    {vtupdate(vtunsafe({'catch',Line}, Evt, Vt), Evt),St};
 expr({match,_Line,P,E}, Vt, St0) ->
     {Evt,St1} = expr(E, Vt, St0),
     {Pvt,Bvt,St2} = pattern(P, vtupdate(Evt, Vt), St1),
@@ -2224,9 +2278,8 @@ expr({op,Line,Op,L,R}, Vt, St0) when Op =:= 'orelse'; Op =:= 'andalso' ->
     {Evt1,St1} = expr(L, Vt, St0),
     Vt1 = vtupdate(Evt1, Vt),
     {Evt2,St2} = expr(R, Vt1, St1),
-    Vt2 = vtmerge(Evt2, Vt1),
-    {Vt3,St3} = icrt_export([Vt1,Vt2], Vt1, {Op,Line}, St2),
-    {vtmerge(Evt1, Vt3),St3};
+    Evt3 = vtupdate(vtunsafe({Op,Line}, Evt2, Vt1), Evt2),
+    {vtmerge(Evt1, Evt3),St2};
 expr({op,_Line,_Op,L,R}, Vt, St) ->
     expr_list([L,R], Vt, St);                   %They see the same variables
 %% The following are not allowed to occur anywhere!
@@ -2237,11 +2290,10 @@ expr({remote,Line,_M,_F}, _Vt, St) ->
 %%      {UsedVarTable,State}
 
 expr_list(Es, Vt, St) ->
-    {Vt1,St1} = foldl(fun (E, {Esvt,St0}) ->
-                              {Evt,St1} = expr(E, Vt, St0),
-                              {vtmerge_pat(Evt, Esvt),St1}
-                      end, {[],St}, Es),
-    {vtmerge(vtnew(Vt1, Vt), vtold(Vt1, Vt)),St1}.
+    foldl(fun (E, {Esvt,St0}) ->
+                  {Evt,St1} = expr(E, Vt, St0),
+                  {vtmerge_pat(Evt, Esvt),St1}
+          end, {[],St}, Es).
 
 record_expr(Line, Rec, Vt, St0) ->
     St1 = warn_invalid_record(Line, Rec, St0),
@@ -2254,18 +2306,13 @@ check_assoc_fields([{map_field_assoc,_,_,_}|Fs], St) ->
 check_assoc_fields([], St) ->
     St.
 
-map_fields([{Tag,Line,K,V}|Fs], Vt, St, F) when Tag =:= map_field_assoc;
-                                                Tag =:= map_field_exact ->
-    St1 = case is_valid_map_key(K, St) of
-	true -> St;
-	false -> add_error(Line, illegal_map_key, St);
-	{false,variable,Var} -> add_error(Line, {illegal_map_key_variable,Var}, St)
-    end,
-    {Pvt,St2} = F([K,V], Vt, St1),
+map_fields([{Tag,_,K,V}|Fs], Vt, St, F) when Tag =:= map_field_assoc;
+                                             Tag =:= map_field_exact ->
+    {Pvt,St2} = F([K,V], Vt, St),
     {Vts,St3} = map_fields(Fs, Vt, St2, F),
     {vtupdate(Pvt, Vts),St3};
-map_fields([], Vt, St, _) ->
-  {Vt,St}.
+map_fields([], _, St, _) ->
+  {[],St}.
 
 %% warn_invalid_record(Line, Record, State0) -> State
 %% Adds warning if the record is invalid.
@@ -2319,21 +2366,14 @@ is_valid_call(Call) ->
         _ -> true
     end.
 
-%% is_valid_map_key(K,St) -> true | false | {false, Var::atom()}
-%%   check for value expression without variables
-
-is_valid_map_key(K,St) ->
-    is_valid_map_key(K,expr,St).
-is_valid_map_key(K,Ctx,St) ->
-    case expr(K,[],St) of
-	{[],_} ->
-	    is_valid_map_key_value(K,Ctx);
-	{[Var|_],_} ->
-	    {false,variable,element(1,Var)}
-    end.
+%% is_valid_map_key(K,St) -> true | false
+%%   variables are allowed for patterns only at the top of the tree
 
-is_valid_map_key_value(K,Ctx) ->
+is_valid_map_key({var,_,_}) -> true;
+is_valid_map_key(K) -> is_valid_map_key_value(K).
+is_valid_map_key_value(K) ->
     case K of
+	{var,_,_} -> false;
 	{char,_,_} -> true;
 	{integer,_,_} -> true;
 	{float,_,_} -> true;
@@ -2341,36 +2381,36 @@ is_valid_map_key_value(K,Ctx) ->
 	{nil,_} -> true;
 	{atom,_,_} -> true;
 	{cons,_,H,T} ->
-	    is_valid_map_key_value(H,Ctx) andalso
-	    is_valid_map_key_value(T,Ctx);
+	    is_valid_map_key_value(H) andalso
+	    is_valid_map_key_value(T);
 	{tuple,_,Es} ->
 	    foldl(fun(E,B) ->
-			B andalso is_valid_map_key_value(E,Ctx)
+			B andalso is_valid_map_key_value(E)
 		end,true,Es);
 	{map,_,Arg,Ps} ->
 	    % only check for value expressions to be valid
 	    % invalid map expressions are later checked in
 	    % core and kernel
-	    is_valid_map_key_value(Arg,Ctx) andalso foldl(fun
+	    is_valid_map_key_value(Arg) andalso foldl(fun
 		    ({Tag,_,Ke,Ve},B) when Tag =:= map_field_assoc;
-					   Tag =:= map_field_exact, Ctx =:= expr ->
-		    B andalso is_valid_map_key_value(Ke,Ctx)
-		      andalso is_valid_map_key_value(Ve,Ctx);
+					   Tag =:= map_field_exact ->
+		    B andalso is_valid_map_key_value(Ke)
+		      andalso is_valid_map_key_value(Ve);
 		    (_,_) -> false
 	    end,true,Ps);
 	{map,_,Ps} ->
 	    foldl(fun
 		    ({Tag,_,Ke,Ve},B) when Tag =:= map_field_assoc;
-					   Tag =:= map_field_exact, Ctx =:= expr ->
-		    B andalso is_valid_map_key_value(Ke,Ctx)
-		      andalso is_valid_map_key_value(Ve,Ctx);
+					   Tag =:= map_field_exact ->
+		    B andalso is_valid_map_key_value(Ke)
+		      andalso is_valid_map_key_value(Ve);
 		    (_,_) -> false
 	    end, true, Ps);
 	{record,_,_,Fs} ->
 	    foldl(fun
 		    ({record_field,_,Ke,Ve},B) ->
-		    B andalso is_valid_map_key_value(Ke,Ctx)
-		      andalso is_valid_map_key_value(Ve,Ctx)
+		    B andalso is_valid_map_key_value(Ke)
+		      andalso is_valid_map_key_value(Ve)
 	      end,true,Fs);
 	{bin,_,Es} ->
 	    % only check for value expressions to be valid
@@ -2378,9 +2418,9 @@ is_valid_map_key_value(K,Ctx) ->
 	    % core and kernel
 	    foldl(fun
 		    ({bin_element,_,E,_,_},B) ->
-		    B andalso is_valid_map_key_value(E,Ctx)
+		    B andalso is_valid_map_key_value(E)
 		end,true,Es);
-	_ -> false
+	Val -> is_pattern_expr(Val)
     end.
 
 %% record_def(Line, RecordName, [RecField], State) -> State.
@@ -2599,7 +2639,7 @@ type_def(_Attr, _Line, {record, _RecName}, Fields, [], St0) ->
     %% The record field names and such are checked in the record format.
     %% We only need to check the types.
     Types = [T || {typed_record_field, _, T} <- Fields],
-    check_type({type, -1, product, Types}, St0);
+    check_type({type, nowarn(), product, Types}, St0);
 type_def(Attr, Line, TypeName, ProtoType, Args, St0) ->
     TypeDefs = St0#lint.types,
     Arity = length(Args),
@@ -2608,37 +2648,28 @@ type_def(Attr, Line, TypeName, ProtoType, Args, St0) ->
     StoreType =
         fun(St) ->
                 NewDefs = dict:store(TypePair, Info, TypeDefs),
-                CheckType = {type, -1, product, [ProtoType|Args]},
+                CheckType = {type, nowarn(), product, [ProtoType|Args]},
                 check_type(CheckType, St#lint{types=NewDefs})
         end,
     case is_default_type(TypePair) of
         true ->
             case is_obsolete_builtin_type(TypePair) of
                 true -> StoreType(St0);
-                false -> add_error(Line, {builtin_type, TypePair}, St0)
-%%                     case is_newly_introduced_builtin_type(TypePair) of
-%%                         %% allow some types just for bootstrapping
-%%                         true ->
-%%                             Warn = {new_builtin_type, TypePair},
-%%                             St1 = add_warning(Line, Warn, St0),
-%%                             StoreType(St1);
-%%                         false ->
-%%                             add_error(Line, {builtin_type, TypePair}, St0)
-%%                     end
+                false ->
+                     case is_newly_introduced_builtin_type(TypePair) of
+                         %% allow some types just for bootstrapping
+                         true ->
+                             Warn = {new_builtin_type, TypePair},
+                             St1 = add_warning(Line, Warn, St0),
+                             StoreType(St1);
+                         false ->
+                             add_error(Line, {builtin_type, TypePair}, St0)
+                     end
             end;
         false ->
-            case
-                dict:is_key(TypePair, TypeDefs) orelse
-                is_var_arity_type(TypeName)
-            of
+            case dict:is_key(TypePair, TypeDefs) of
                 true ->
-                    case is_newly_introduced_var_arity_type(TypeName) of
-                        true ->
-                            Warn = {new_var_arity_type, TypeName},
-                            add_warning(Line, Warn, St0);
-                        false ->
-                            add_error(Line, {redefine_type, TypePair}, St0)
-                    end;
+                    add_error(Line, {redefine_type, TypePair}, St0);
                 false ->
                     St1 = case
                               Attr =:= opaque andalso
@@ -2673,9 +2704,11 @@ check_type({ann_type, _L, [_Var, Type]}, SeenVars, St) ->
 check_type({paren_type, _L, [Type]}, SeenVars, St) ->
     check_type(Type, SeenVars, St);
 check_type({remote_type, L, [{atom, _, Mod}, {atom, _, Name}, Args]},
-	   SeenVars, #lint{module=CurrentMod} = St) ->
+	   SeenVars, St0) ->
+    St = deprecated_type(L, Mod, Name, Args, St0),
+    CurrentMod = St#lint.module,
     case Mod =:= CurrentMod of
-	true -> check_type({type, L, Name, Args}, SeenVars, St);
+	true -> check_type({user_type, L, Name, Args}, SeenVars, St);
 	false ->
 	    lists:foldl(fun(T, {AccSeenVars, AccSt}) ->
 				check_type(T, AccSeenVars, AccSt)
@@ -2701,7 +2734,7 @@ check_type({type, L, 'fun', [Dom, Range]}, SeenVars, St) ->
 	    {type, _, any} -> St;
 	    _ -> add_error(L, {type_syntax, 'fun'}, St)
 	end,
-    check_type({type, -1, product, [Dom, Range]}, SeenVars, St1);
+    check_type({type, nowarn(), product, [Dom, Range]}, SeenVars, St1);
 check_type({type, L, range, [From, To]}, SeenVars, St) ->
     St1 =
 	case {erl_eval:partial_eval(From), erl_eval:partial_eval(To)} of
@@ -2709,13 +2742,16 @@ check_type({type, L, range, [From, To]}, SeenVars, St) ->
 	    _ -> add_error(L, {type_syntax, range}, St)
 	end,
     {SeenVars, St1};
-check_type({type, _L, map, any}, SeenVars, St) -> {SeenVars, St};
+check_type({type, L, map, any}, SeenVars, St) ->
+    %% To get usage right while map/0 is a newly_introduced_builtin_type.
+    St1 = used_type({map, 0}, L, St),
+    {SeenVars, St1};
 check_type({type, _L, map, Pairs}, SeenVars, St) ->
     lists:foldl(fun(Pair, {AccSeenVars, AccSt}) ->
 			check_type(Pair, AccSeenVars, AccSt)
 		end, {SeenVars, St}, Pairs);
-check_type({type, _L, map_field_assoc, Dom, Range}, SeenVars, St) ->
-    check_type({type, -1, product, [Dom, Range]}, SeenVars, St);
+check_type({type, _L, map_field_assoc, [Dom, Range]}, SeenVars, St) ->
+    check_type({type, nowarn(), product, [Dom, Range]}, SeenVars, St);
 check_type({type, _L, tuple, any}, SeenVars, St) -> {SeenVars, St};
 check_type({type, _L, any}, SeenVars, St) -> {SeenVars, St};
 check_type({type, L, binary, [Base, Unit]}, SeenVars, St) ->
@@ -2733,41 +2769,39 @@ check_type({type, L, record, [Name|Fields]}, SeenVars, St) ->
 	    check_record_types(L, Atom, Fields, SeenVars, St1);
 	_ -> {SeenVars, add_error(L, {type_syntax, record}, St)}
     end;
-check_type({type, _L, product, Args}, SeenVars, St) ->
+check_type({type, _L, Tag, Args}, SeenVars, St) when Tag =:= product;
+                                                     Tag =:= union;
+                                                     Tag =:= tuple ->
     lists:foldl(fun(T, {AccSeenVars, AccSt}) ->
 			check_type(T, AccSeenVars, AccSt)
 		end, {SeenVars, St}, Args);
 check_type({type, La, TypeName, Args}, SeenVars, St) ->
-    #lint{usage=Usage, module = Module, types=Types} = St,
+    #lint{module = Module, types=Types} = St,
     Arity = length(Args),
     TypePair = {TypeName, Arity},
-    St1 = case is_var_arity_type(TypeName) of
-	      true -> St;
-	      false ->
-                  Obsolete = (is_warn_enabled(deprecated_type, St)
-                              andalso obsolete_builtin_type(TypePair)),
-                  IsObsolete =
-                      case Obsolete of
-                          {deprecated, Repl, _} when element(1, Repl) =/= Module ->
-                              case dict:find(TypePair, Types) of
-                                  {ok, _} -> false;
-                                  error -> true
-                              end;
-                          _ -> false
-                      end,
-                  case IsObsolete of
-                      true ->
+    Obsolete = (is_warn_enabled(deprecated_type, St)
+                andalso obsolete_builtin_type(TypePair)),
+    St1 = case Obsolete of
+              {deprecated, Repl, _} when element(1, Repl) =/= Module ->
+                  case dict:find(TypePair, Types) of
+                      {ok, _} ->
+                          used_type(TypePair, La, St);
+                      error ->
                           {deprecated, Replacement, Rel} = Obsolete,
                           Tag = deprecated_builtin_type,
                           W = {Tag, TypePair, Replacement, Rel},
-                          add_warning(La, W, St);
-                      false ->
-                          OldUsed = Usage#usage.used_types,
-                          UsedTypes = dict:store(TypePair, La, OldUsed),
-                          St#lint{usage=Usage#usage{used_types=UsedTypes}}
-                  end
-	  end,
-    check_type({type, -1, product, Args}, SeenVars, St1);
+                          add_warning(La, W, St)
+                end;
+            _ -> St
+        end,
+    check_type({type, nowarn(), product, Args}, SeenVars, St1);
+check_type({user_type, L, TypeName, Args}, SeenVars, St) ->
+    Arity = length(Args),
+    TypePair = {TypeName, Arity},
+    St1 = used_type(TypePair, L, St),
+    lists:foldl(fun(T, {AccSeenVars, AccSt}) ->
+			check_type(T, AccSeenVars, AccSt)
+		end, {SeenVars, St1}, Args);
 check_type(I, SeenVars, St) ->
     case erl_eval:partial_eval(I) of
         {integer,_ILn,_Integer} -> {SeenVars, St};
@@ -2809,95 +2843,23 @@ check_record_types([{type, _, field_type, [{atom, AL, FName}, Type]}|Left],
 check_record_types([], _Name, _DefFields, SeenVars, St, _SeenFields) ->
     {SeenVars, St}.
 
-is_var_arity_type(tuple) -> true;
-is_var_arity_type(map) -> true;
-is_var_arity_type(product) -> true;
-is_var_arity_type(union) -> true;
-is_var_arity_type(record) -> true;
-is_var_arity_type(_) -> false.
-
-is_default_type({any, 0}) -> true;
-is_default_type({arity, 0}) -> true;
-is_default_type({array, 0}) -> true;
-is_default_type({atom, 0}) -> true;
-is_default_type({atom, 1}) -> true;
-is_default_type({binary, 0}) -> true;
-is_default_type({binary, 2}) -> true;
-is_default_type({bitstring, 0}) -> true;
-is_default_type({bool, 0}) -> true;
-is_default_type({boolean, 0}) -> true;
-is_default_type({byte, 0}) -> true;
-is_default_type({char, 0}) -> true;
-is_default_type({dict, 0}) -> true;
-is_default_type({digraph, 0}) -> true;
-is_default_type({float, 0}) -> true;
-is_default_type({'fun', 0}) -> true;
-is_default_type({'fun', 2}) -> true;
-is_default_type({function, 0}) -> true;
-is_default_type({gb_set, 0}) -> true;
-is_default_type({gb_tree, 0}) -> true;
-is_default_type({identifier, 0}) -> true;
-is_default_type({integer, 0}) -> true;
-is_default_type({integer, 1}) -> true;
-is_default_type({iodata, 0}) -> true;
-is_default_type({iolist, 0}) -> true;
-is_default_type({list, 0}) -> true;
-is_default_type({list, 1}) -> true;
-is_default_type({maybe_improper_list, 0}) -> true;
-is_default_type({maybe_improper_list, 2}) -> true;
-is_default_type({mfa, 0}) -> true;
-is_default_type({module, 0}) -> true;
-is_default_type({neg_integer, 0}) -> true;
-is_default_type({nil, 0}) -> true;
-is_default_type({no_return, 0}) -> true;
-is_default_type({node, 0}) -> true;
-is_default_type({non_neg_integer, 0}) -> true;
-is_default_type({none, 0}) -> true;
-is_default_type({nonempty_list, 0}) -> true;
-is_default_type({nonempty_list, 1}) -> true;
-is_default_type({nonempty_improper_list, 2}) -> true;
-is_default_type({nonempty_maybe_improper_list, 0}) -> true;
-is_default_type({nonempty_maybe_improper_list, 2}) -> true;
-is_default_type({nonempty_string, 0}) -> true;
-is_default_type({number, 0}) -> true;
-is_default_type({pid, 0}) -> true;
-is_default_type({port, 0}) -> true;
-is_default_type({pos_integer, 0}) -> true;
-is_default_type({queue, 0}) -> true;
-is_default_type({range, 2}) -> true;
-is_default_type({reference, 0}) -> true;
-is_default_type({set, 0}) -> true;
-is_default_type({string, 0}) -> true;
-is_default_type({term, 0}) -> true;
-is_default_type({timeout, 0}) -> true;
-is_default_type({var, 1}) -> true;
-is_default_type(_) -> false.
-
-is_newly_introduced_var_arity_type(map) -> true;
-is_newly_introduced_var_arity_type(_) -> false.
-
-%% is_newly_introduced_builtin_type({Name, _}) when is_atom(Name) -> false.
+used_type(TypePair, L, #lint{usage = Usage, file = File} = St) ->
+    OldUsed = Usage#usage.used_types,
+    UsedTypes = dict:store(TypePair, erl_anno:set_file(File, L), OldUsed),
+    St#lint{usage=Usage#usage{used_types=UsedTypes}}.
+
+is_default_type({Name, NumberOfTypeVariables}) ->
+    erl_internal:is_type(Name, NumberOfTypeVariables).
+
+is_newly_introduced_builtin_type({map, 0}) -> true;
+is_newly_introduced_builtin_type({Name, _}) when is_atom(Name) -> false.
 
 is_obsolete_builtin_type(TypePair) ->
     obsolete_builtin_type(TypePair) =/= no.
 
-%% Obsolete in OTP 17.0.
-obsolete_builtin_type({array, 0}) ->
-    {deprecated, {array, array, 1}, "OTP 18.0"};
-obsolete_builtin_type({dict, 0}) ->
-    {deprecated, {dict, dict, 2}, "OTP 18.0"};
-obsolete_builtin_type({digraph, 0}) ->
-    {deprecated, {digraph, graph}, "OTP 18.0"};
-obsolete_builtin_type({gb_set, 0}) ->
-    {deprecated, {gb_sets, set, 1}, "OTP 18.0"};
-obsolete_builtin_type({gb_tree, 0}) ->
-    {deprecated, {gb_trees, tree, 2}, "OTP 18.0"};
-obsolete_builtin_type({queue, 0}) ->
-    {deprecated, {queue, queue, 1}, "OTP 18.0"};
-obsolete_builtin_type({set, 0}) ->
-    {deprecated, {sets, set, 1}, "OTP 18.0"};
-obsolete_builtin_type({tid, 0}) ->
-    {deprecated, {ets, tid}, "OTP 18.0"};
+%% To keep Dialyzer silent...
+obsolete_builtin_type({1, 255}) ->
+    {deprecated, {2, 255}, ""};
 obsolete_builtin_type({Name, A}) when is_atom(Name), is_integer(A) -> no.
 
 %% spec_decl(Line, Fun, Types, State) -> State.
@@ -2909,7 +2871,7 @@ spec_decl(Line, MFA0, TypeSpecs, St0 = #lint{specs = Specs, module = Mod}) ->
 	  end,
     St1 = St0#lint{specs = dict:store(MFA, Line, Specs)},
     case dict:is_key(MFA, Specs) of
-	true -> add_error(Line, {redefine_spec, MFA}, St1);
+	true -> add_error(Line, {redefine_spec, MFA0}, St1);
 	false -> check_specs(TypeSpecs, Arity, St1)
     end.
 
@@ -2917,16 +2879,50 @@ spec_decl(Line, MFA0, TypeSpecs, St0 = #lint{specs = Specs, module = Mod}) ->
 
 callback_decl(Line, MFA0, TypeSpecs,
 	      St0 = #lint{callbacks = Callbacks, module = Mod}) ->
-    MFA = case MFA0 of
-	      {F, Arity} -> {Mod, F, Arity};
-	      {_M, _F, Arity} -> MFA0
-	  end,
-    St1 = St0#lint{callbacks = dict:store(MFA, Line, Callbacks)},
-    case dict:is_key(MFA, Callbacks) of
-	true -> add_error(Line, {redefine_callback, MFA}, St1);
-	false -> check_specs(TypeSpecs, Arity, St1)
+    case MFA0 of
+        {_M, _F, _A} -> add_error(Line, {bad_callback, MFA0}, St0);
+        {F, Arity} ->
+            MFA = {Mod, F, Arity},
+            St1 = St0#lint{callbacks = dict:store(MFA, Line, Callbacks)},
+            case dict:is_key(MFA, Callbacks) of
+                true -> add_error(Line, {redefine_callback, MFA0}, St1);
+                false -> check_specs(TypeSpecs, Arity, St1)
+            end
+    end.
+
+%% optional_callbacks(Line, FAs, State) -> State.
+
+optional_callbacks(Line, Term, St0) ->
+    try true = is_fa_list(Term), Term of
+        FAs ->
+            optional_cbs(Line, FAs, St0)
+    catch
+        _:_ ->
+            St0 % ignore others
     end.
 
+optional_cbs(_Line, [], St) ->
+    St;
+optional_cbs(Line, [{F,A}|FAs], St0) ->
+    #lint{optional_callbacks = OptionalCbs, module = Mod} = St0,
+    MFA = {Mod, F, A},
+    St1 = St0#lint{optional_callbacks = dict:store(MFA, Line, OptionalCbs)},
+    St2 = case dict:is_key(MFA, OptionalCbs) of
+              true ->
+                  add_error(Line, {redefine_optional_callback, {F,A}}, St1);
+              false ->
+                  St1
+          end,
+    optional_cbs(Line, FAs, St2).
+
+is_fa_list([E|L]) -> is_fa(E) andalso is_fa_list(L);
+is_fa_list([]) -> true;
+is_fa_list(_) -> false.
+
+is_fa({FuncName, Arity})
+  when is_atom(FuncName), is_integer(Arity), Arity >= 0 -> true;
+is_fa(_) -> false.
+
 check_specs([FunType|Left], Arity, St0) ->
     {FunType1, CTypes} =
 	case FunType of
@@ -2944,16 +2940,22 @@ check_specs([FunType|Left], Arity, St0) ->
 	      true -> St0;
 	      false -> add_error(L, spec_wrong_arity, St0)
 	  end,
-    St2 = check_type({type, -1, product, [FunType1|CTypes]}, St1),
+    St2 = check_type({type, nowarn(), product, [FunType1|CTypes]}, St1),
     check_specs(Left, Arity, St2);
 check_specs([], _Arity, St) ->
     St.
 
+nowarn() ->
+    A0 = erl_anno:new(0),
+    A1 = erl_anno:set_generated(true, A0),
+    erl_anno:set_file("", A1).
+
 check_specs_without_function(#lint{module=Mod,defined=Funcs,specs=Specs}=St) ->
-    Fun = fun({M, F, A} = MFA, Line, AccSt) when M =:= Mod ->
-		  case gb_sets:is_element({F, A}, Funcs) of
+    Fun = fun({M, F, A}, Line, AccSt) when M =:= Mod ->
+                  FA = {F, A},
+		  case gb_sets:is_element(FA, Funcs) of
 		      true -> AccSt;
-		      false -> add_error(Line, {spec_fun_undefined, MFA}, AccSt)
+		      false -> add_error(Line, {spec_fun_undefined, FA}, AccSt)
 		  end;
 	     ({_M, _F, _A}, _Line, AccSt) -> AccSt
 	  end,
@@ -2998,7 +3000,7 @@ check_unused_types(Forms, #lint{usage=Usage, types=Ts, exp_types=ExpTs}=St) ->
 	    UsedTypes = gb_sets:from_list(L),
 	    FoldFun =
 		fun(Type, #typeinfo{line = FileLine}, AccSt) ->
-                        case loc(FileLine) of
+                        case loc(FileLine, AccSt) of
 			    {FirstFile, _} ->
 				case gb_sets:is_member(Type, UsedTypes) of
 				    true -> AccSt;
@@ -3032,11 +3034,12 @@ check_local_opaque_types(St) ->
     dict:fold(FoldFun, St, Ts).
 
 %% icrt_clauses(Clauses, In, ImportVarTable, State) ->
-%%      {NewVts,State}.
+%%      {UpdVt,State}.
 
 icrt_clauses(Cs, In, Vt, St0) ->
     {Csvt,St1} = icrt_clauses(Cs, Vt, St0),
-    icrt_export(Csvt, Vt, In, St1).
+    UpdVt = icrt_export(Csvt, Vt, In, St1),
+    {UpdVt,St1}.
 
 %% icrt_clauses(Clauses, ImportVarTable, State) ->
 %%      {NewVts,State}.
@@ -3046,26 +3049,73 @@ icrt_clauses(Cs, Vt, St) ->
 
 icrt_clause({clause,_Line,H,G,B}, Vt0, St0) ->
     {Hvt,Binvt,St1} = head(H, Vt0, St0),
-    Vt1 = vtupdate(Hvt, vtupdate(Binvt, Vt0)),
-    {Gvt,St2} = guard(G, Vt1, St1),
+    Vt1 = vtupdate(Hvt, Binvt),
+    {Gvt,St2} = guard(G, vtupdate(Vt1, Vt0), St1),
     Vt2 = vtupdate(Gvt, Vt1),
-    {Bvt,St3} = exprs(B, Vt2, St2),
+    {Bvt,St3} = exprs(B, vtupdate(Vt2, Vt0), St2),
     {vtupdate(Bvt, Vt2),St3}.
 
-icrt_export(Csvt, Vt, In, St) ->
-    Vt1 = vtmerge(Csvt),
-    All = ordsets:subtract(vintersection(Csvt), vtnames(Vt)),
-    Some = ordsets:subtract(vtnames(Vt1), vtnames(Vt)),
-    Xvt = vtexport(All, In, []),
-    Evt = vtunsafe(ordsets:subtract(Some, All), In, Xvt),
-    Unused = vtmerge([unused_vars(Vt0, Vt, St) || Vt0 <- Csvt]),
-    %% Exported and unsafe variables may be unused:
-    Uvt = vtmerge(Evt, Unused),
-    %% Make exported and unsafe unused variables unused in subsequent code:
-    Vt2 = vtmerge(Uvt, vtsubtract(Vt1, Uvt)),
-    %% Forget about old variables which were not used:
-    Vt3 = vtmerge(vtnew(Vt2, Vt), vt_no_unused(vtold(Vt2, Vt))),
-    {Vt3,St}.
+icrt_export(Vts, Vt, {Tag,Attrs}, St) ->
+    {_File,Loc} = loc(Attrs, St),
+    icrt_export(lists:merge(Vts), Vt, {Tag,Loc}, length(Vts), []).
+
+icrt_export([{V,{{export,_},_,_}}|Vs0], [{V,{{export,_}=S0,_,Ls}}|Vt],
+            In, I, Acc) ->
+    %% V was an exported variable and has been used in an expression in at least
+    %% one clause. Its state needs to be merged from all clauses to silence any
+    %% exported var warning already emitted.
+    {VVs,Vs} = lists:partition(fun ({K,_}) -> K =:= V end, Vs0),
+    S = foldl(fun ({_,{S1,_,_}}, AccS) -> merge_state(AccS, S1) end, S0, VVs),
+    icrt_export(Vs, Vt, In, I, [{V,{S,used,Ls}}|Acc]);
+icrt_export([{V,_}|Vs0], [{V,{_,_,Ls}}|Vt], In, I, Acc) ->
+    %% V was either unsafe or bound and has now been reused. It may also have
+    %% been an export but as it was not matched by the previous clause, it means
+    %% it has been changed to 'bound' in at least one clause because it was used
+    %% in a pattern.
+    Vs = lists:dropwhile(fun ({K,_}) -> K =:= V end, Vs0),
+    icrt_export(Vs, Vt, In, I, [{V,{bound,used,Ls}}|Acc]);
+icrt_export([{V1,_}|_]=Vs, [{V2,_}|Vt], In, I, Acc) when V1 > V2 ->
+    %% V2 was already in scope and has not been reused in any clause.
+    icrt_export(Vs, Vt, In, I, Acc);
+icrt_export([{V,_}|_]=Vs0, Vt, In, I, Acc) ->
+    %% V is a new variable.
+    {VVs,Vs} = lists:partition(fun ({K,_}) -> K =:= V end, Vs0),
+    F = fun ({_,{S,U,Ls}}, {AccI,AccS0,AccLs0}) ->
+                AccS = case {S,AccS0} of
+                           {{unsafe,_},{unsafe,_}} ->
+                               %% V was found unsafe in a previous clause, mark
+                               %% it as unsafe for the whole parent expression.
+                               {unsafe,In};
+                           {{unsafe,_},_} ->
+                               %% V was unsafe in a clause, keep that state and
+                               %% generalize it to the whole expression if it
+                               %% is found unsafe in another one.
+                               S;
+                           _ ->
+                               %% V is either bound or exported, keep original
+                               %% state.
+                               AccS0
+                       end,
+                AccLs = case U of
+                            used -> AccLs0;
+                            unused -> merge_lines(AccLs0, Ls)
+                        end,
+                {AccI + 1,AccS,AccLs}
+        end,
+    %% Initial state is exported from the current expression.
+    {Count,S1,Ls} = foldl(F, {0,{export,In},[]}, VVs),
+    S = case Count of
+            I ->
+                %% V was found in all clauses, keep computed state.
+                S1;
+            _ ->
+                %% V was not bound in some clauses, mark as unsafe.
+                {unsafe,In}
+        end,
+    U = case Ls of [] -> used; _ -> unused end,
+    icrt_export(Vs, Vt, In, I, [{V,{S,U,Ls}}|Acc]);
+icrt_export([], _, _, _, Acc) ->
+    reverse(Acc).
 
 handle_comprehension(E, Qs, Vt0, St0) ->
     {Vt1, Uvt, St1} = lc_quals(Qs, Vt0, St0),
@@ -3163,7 +3213,8 @@ fun_clauses(Cs, Vt, St) ->
                               {Cvt,St1} = fun_clause(C, Vt, St0),
                               {vtmerge(Cvt, Bvt0),St1}
                       end, {[],St#lint{recdef_top = false}}, Cs),
-    {vt_no_unused(vtold(Bvt, Vt)),St2#lint{recdef_top = OldRecDef}}.
+    Uvt = vt_no_unsafe(vt_no_unused(vtold(Bvt, Vt))),
+    {Uvt,St2#lint{recdef_top = OldRecDef}}.
 
 fun_clause({clause,_Line,H,G,B}, Vt0, St0) ->
     {Hvt,Binvt,St1} = head(H, Vt0, [], St0), % No imported pattern variables
@@ -3277,19 +3328,24 @@ pat_binsize_var(V, Line, Vt, Bvt, St) ->
 %%  exported vars are probably safe, warn only if warn_export_vars is
 %%  set.
 
-expr_var(V, Line, Vt, St0) ->
+expr_var(V, Line, Vt, St) ->
     case orddict:find(V, Vt) of
         {ok,{bound,_Usage,Ls}} ->
-            {[{V,{bound,used,Ls}}],St0};
+            {[{V,{bound,used,Ls}}],St};
         {ok,{{unsafe,In},_Usage,Ls}} ->
             {[{V,{bound,used,Ls}}],
-             add_error(Line, {unsafe_var,V,In}, St0)};
+             add_error(Line, {unsafe_var,V,In}, St)};
         {ok,{{export,From},_Usage,Ls}} ->
-            {[{V,{bound,used,Ls}}],
-             exported_var(Line, V, From, St0)};
+            case is_warn_enabled(export_vars, St) of
+                true ->
+                    {[{V,{bound,used,Ls}}],
+                     add_warning(Line, {exported_var,V,From}, St)};
+                false ->
+                    {[{V,{{export,From},used,Ls}}],St}
+            end;
         error ->
             {[{V,{bound,used,[Line]}}],
-             add_error(Line, {unbound_var,V}, St0)}
+             add_error(Line, {unbound_var,V}, St)}
     end.
 
 exported_var(Line, V, From, St) ->
@@ -3353,17 +3409,12 @@ vtupdate(Uvt, Vt0) ->
                           {S, merge_used(U1, U2), merge_lines(L1, L2)}
                   end, Uvt, Vt0).
 
-%% vtexport([Variable], From, VarTable) -> VarTable.
-%% vtunsafe([Variable], From, VarTable) -> VarTable.
-%%  Add the variables to VarTable either as exported from From or as unsafe.
-
-vtexport(Vs, {InTag,FileLine}, Vt0) ->
-    {_File,Line} = loc(FileLine),
-    vtupdate([{V,{{export,{InTag,Line}},unused,[]}} || V <- Vs], Vt0).
+%% vtunsafe(From, UpdVarTable, VarTable) -> UnsafeVarTable.
+%%  Return all new variables in UpdVarTable as unsafe.
 
-vtunsafe(Vs, {InTag,FileLine}, Vt0) ->
-    {_File,Line} = loc(FileLine),
-    vtupdate([{V,{{unsafe,{InTag,Line}},unused,[]}} || V <- Vs], Vt0).
+vtunsafe({Tag,FileLine}, Uvt, Vt) ->
+    Line = erl_anno:location(FileLine),
+    [{V,{{unsafe,{Tag,Line}},U,Ls}} || {V,{_,U,Ls}} <- vtnew(Uvt, Vt)].
 
 %% vtmerge(VarTable, VarTable) -> VarTable.
 %%  Merge two variables tables generating a new vartable. Give priority to
@@ -3416,8 +3467,6 @@ vtsubtract(New, Old) ->
 vtold(New, Old) ->
     orddict:filter(fun (V, _How) -> orddict:is_key(V, Old) end, New).
 
-vtnames(Vt) -> [ V || {V,_How} <- Vt ].
-
 vt_no_unsafe(Vt) -> [V || {_,{S,_U,_L}}=V <- Vt,
                           case S of
                               {unsafe,_} -> false;
@@ -3426,84 +3475,18 @@ vt_no_unsafe(Vt) -> [V || {_,{S,_U,_L}}=V <- Vt,
 
 vt_no_unused(Vt) -> [V || {_,{_,U,_L}}=V <- Vt, U =/= unused].
 
-%% vunion(VarTable1, VarTable2) -> [VarName].
-%% vunion([VarTable]) -> [VarName].
-%% vintersection(VarTable1, VarTable2) -> [VarName].
-%% vintersection([VarTable]) -> [VarName].
-%%  Union/intersection of names of vars in VarTable.
-
--ifdef(NOTUSED).
-vunion(Vs1, Vs2) -> ordsets:union(vtnames(Vs1), vtnames(Vs2)).
-
-vunion(Vss) -> foldl(fun (Vs, Uvs) ->
-                             ordsets:union(vtnames(Vs), Uvs)
-                     end, [], Vss).
-
-vintersection(Vs1, Vs2) -> ordsets:intersection(vtnames(Vs1), vtnames(Vs2)).
--endif.
-
-vintersection([Vs]) ->
-    vtnames(Vs);                %Boundary conditions!!!
-vintersection([Vs|Vss]) ->
-    ordsets:intersection(vtnames(Vs), vintersection(Vss));
-vintersection([]) ->
-    [].
-
 %% copy_expr(Expr, Line) -> Expr.
 %%  Make a copy of Expr converting all line numbers to Line.
 
-copy_expr(Expr, Line) ->
-    modify_line(Expr, fun(_L) -> Line end).
+copy_expr(Expr, Anno) ->
+    erl_parse:map_anno(fun(_A) -> Anno end, Expr).
 
 %% modify_line(Form, Fun) -> Form
 %% modify_line(Expression, Fun) -> Expression
 %%  Applies Fun to each line number occurrence.
 
 modify_line(T, F0) ->
-    modify_line1(T, F0).
-
-%% Forms.
-modify_line1({function,F,A}, _Mf) -> {function,F,A};
-modify_line1({function,M,F,A}, Mf) ->
-    {function,modify_line1(M, Mf),modify_line1(F, Mf),modify_line1(A, Mf)};
-modify_line1({attribute,L,record,{Name,Fields}}, Mf) ->
-    {attribute,Mf(L),record,{Name,modify_line1(Fields, Mf)}};
-modify_line1({attribute,L,spec,{Fun,Types}}, Mf) ->
-    {attribute,Mf(L),spec,{Fun,modify_line1(Types, Mf)}};
-modify_line1({attribute,L,callback,{Fun,Types}}, Mf) ->
-    {attribute,Mf(L),callback,{Fun,modify_line1(Types, Mf)}};
-modify_line1({attribute,L,type,{TypeName,TypeDef,Args}}, Mf) ->
-    {attribute,Mf(L),type,{TypeName,modify_line1(TypeDef, Mf),
-			   modify_line1(Args, Mf)}};
-modify_line1({attribute,L,opaque,{TypeName,TypeDef,Args}}, Mf) ->
-    {attribute,Mf(L),opaque,{TypeName,modify_line1(TypeDef, Mf),
-                             modify_line1(Args, Mf)}};
-modify_line1({attribute,L,Attr,Val}, Mf) -> {attribute,Mf(L),Attr,Val};
-modify_line1({warning,W}, _Mf) -> {warning,W};
-modify_line1({error,W}, _Mf) -> {error,W};
-%% Expressions.
-modify_line1({clauses,Cs}, Mf) -> {clauses,modify_line1(Cs, Mf)};
-modify_line1({typed_record_field,Field,Type}, Mf) ->
-    {typed_record_field,modify_line1(Field, Mf),modify_line1(Type, Mf)};
-modify_line1({Tag,L}, Mf) -> {Tag,Mf(L)};
-modify_line1({Tag,L,E1}, Mf) ->
-    {Tag,Mf(L),modify_line1(E1, Mf)};
-modify_line1({Tag,L,E1,E2}, Mf) ->
-    {Tag,Mf(L),modify_line1(E1, Mf),modify_line1(E2, Mf)};
-modify_line1({bin_element,L,E1,E2,TSL}, Mf) ->
-    {bin_element,Mf(L),modify_line1(E1, Mf),modify_line1(E2, Mf), TSL};
-modify_line1({Tag,L,E1,E2,E3}, Mf) ->
-    {Tag,Mf(L),modify_line1(E1, Mf),modify_line1(E2, Mf),modify_line1(E3, Mf)};
-modify_line1({Tag,L,E1,E2,E3,E4}, Mf) ->
-    {Tag,Mf(L),
-     modify_line1(E1, Mf),
-     modify_line1(E2, Mf),
-     modify_line1(E3, Mf),
-     modify_line1(E4, Mf)};
-modify_line1([H|T], Mf) ->
-    [modify_line1(H, Mf)|modify_line1(T, Mf)];
-modify_line1([], _Mf) -> [];
-modify_line1(E, _Mf) when not is_tuple(E), not is_list(E) -> E.
+    erl_parse:map_anno(F0, T).
 
 %% Check a record_info call. We have already checked that it is not
 %% shadowed by an import.
@@ -3573,6 +3556,20 @@ deprecated_function(Line, M, F, As, St) ->
 	    St
     end.
 
+deprecated_type(L, M, N, As, St) ->
+    NAs = length(As),
+    case otp_internal:obsolete_type(M, N, NAs) of
+        {deprecated, String} when is_list(String) ->
+            case is_warn_enabled(deprecated_type, St) of
+                true ->
+                    add_warning(L, {deprecated_type, {M,N,NAs}, String}, St);
+                false ->
+                    St
+            end;
+        no ->
+            St
+    end.
+
 obsolete_guard({call,Line,{atom,Lr,F},As}, St0) ->
     Arity = length(As),
     case erl_internal:old_type_test(F, Arity) of
@@ -3800,8 +3797,7 @@ is_autoimport_suppressed(NoAutoSet,{Func,Arity}) ->
     gb_sets:is_element({Func,Arity},NoAutoSet).
 %% Predicate to find out if a function specific bif-clash suppression (old deprecated) is present
 bif_clash_specifically_disabled(St,{F,A}) ->
-    Nowarn = nowarn_function(nowarn_bif_clash, St#lint.compile),
-    lists:member({F,A},Nowarn).
+    lists:member({F,A},St#lint.nowarn_bif_clash).
 
 %% Predicate to find out if an autoimported guard_bif is not overriden in some way
 %% Guard Bif without module name is disallowed if
diff --git a/lib/stdlib/src/erl_parse.yrl b/lib/stdlib/src/erl_parse.yrl
index 1d4a2a1fef..e328e065e3 100644
--- a/lib/stdlib/src/erl_parse.yrl
+++ b/lib/stdlib/src/erl_parse.yrl
@@ -2,7 +2,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -42,7 +42,6 @@ function_call argument_list
 exprs guard
 atomic strings
 prefix_op mult_op add_op list_op comp_op
-rule rule_clauses rule_clause rule_body
 binary bin_elements bin_element bit_expr
 opt_bit_size_expr bit_size_expr opt_bit_type_list bit_type_list bit_type
 top_type top_type_100 top_types type typed_expr typed_attr_val
@@ -54,7 +53,7 @@ bin_base_type bin_unit_type type_200 type_300 type_400 type_500.
 Terminals
 char integer float atom string var
 
-'(' ')' ',' '->' ':-' '{' '}' '[' ']' '|' '||' '<-' ';' ':' '#' '.'
+'(' ')' ',' '->' '{' '}' '[' ']' '|' '||' '<-' ';' ':' '#' '.'
 'after' 'begin' 'case' 'try' 'catch' 'end' 'fun' 'if' 'of' 'receive' 'when'
 'andalso' 'orelse'
 'bnot' 'not'
@@ -73,7 +72,6 @@ Rootsymbol form.
 
 form -> attribute dot : '$1'.
 form -> function dot : '$1'.
-form -> rule dot : '$1'.
 
 attribute -> '-' atom attr_val               : build_attribute('$2', '$3').
 attribute -> '-' atom typed_attr_val         : build_typed_attribute('$2','$3').
@@ -94,7 +92,7 @@ spec_fun -> atom ':' atom '/' integer '::' : {'$1', '$3', '$5'}.
 typed_attr_val -> expr ',' typed_record_fields : {typed_record, '$1', '$3'}.
 typed_attr_val -> expr '::' top_type           : {type_def, '$1', '$3'}.
 
-typed_record_fields -> '{' typed_exprs '}' : {tuple, ?line('$1'), '$2'}.
+typed_record_fields -> '{' typed_exprs '}' : {tuple, ?anno('$1'), '$2'}.
 
 typed_exprs -> typed_expr                 : ['$1'].
 typed_exprs -> typed_expr ',' typed_exprs : ['$1'|'$3'].
@@ -107,26 +105,26 @@ type_sigs -> type_sig                     : ['$1'].
 type_sigs -> type_sig ';' type_sigs       : ['$1'|'$3'].
 
 type_sig -> fun_type                      : '$1'.
-type_sig -> fun_type 'when' type_guards   : {type, ?line('$1'), bounded_fun,
+type_sig -> fun_type 'when' type_guards   : {type, ?anno('$1'), bounded_fun,
                                              ['$1','$3']}.
 
 type_guards -> type_guard                 : ['$1'].
 type_guards -> type_guard ',' type_guards : ['$1'|'$3'].
 
-type_guard -> atom '(' top_types ')'      : {type, ?line('$1'), constraint,
+type_guard -> atom '(' top_types ')'      : {type, ?anno('$1'), constraint,
                                              ['$1', '$3']}.
 type_guard -> var '::' top_type           : build_def('$1', '$3').
 
 top_types -> top_type                     : ['$1'].
 top_types -> top_type ',' top_types       : ['$1'|'$3'].
 
-top_type -> var '::' top_type_100         : {ann_type, ?line('$1'), ['$1','$3']}.
+top_type -> var '::' top_type_100         : {ann_type, ?anno('$1'), ['$1','$3']}.
 top_type -> top_type_100                  : '$1'.
 
 top_type_100 -> type_200                  : '$1'.
 top_type_100 -> type_200 '|' top_type_100 : lift_unions('$1','$3').
 
-type_200 -> type_300 '..' type_300        : {type, ?line('$1'), range,
+type_200 -> type_300 '..' type_300        : {type, ?anno('$1'), range,
                                              [skip_paren('$1'),
                                               skip_paren('$3')]}.
 type_200 -> type_300                      : '$1'.
@@ -142,62 +140,61 @@ type_400 -> type_500                      : '$1'.
 type_500 -> prefix_op type                : ?mkop1('$1', skip_paren('$2')).
 type_500 -> type                          : '$1'.
 
-type -> '(' top_type ')'                  : {paren_type, ?line('$2'), ['$2']}.
+type -> '(' top_type ')'                  : {paren_type, ?anno('$2'), ['$2']}.
 type -> var                               : '$1'.
 type -> atom                              : '$1'.
 type -> atom '(' ')'                      : build_gen_type('$1').
-type -> atom '(' top_types ')'            : {type, ?line('$1'),
-                                             normalise('$1'), '$3'}.
-type -> atom ':' atom '(' ')'             : {remote_type, ?line('$1'),
+type -> atom '(' top_types ')'            : build_type('$1', '$3').
+type -> atom ':' atom '(' ')'             : {remote_type, ?anno('$1'),
                                              ['$1', '$3', []]}.
-type -> atom ':' atom '(' top_types ')'   : {remote_type, ?line('$1'),
+type -> atom ':' atom '(' top_types ')'   : {remote_type, ?anno('$1'),
                                              ['$1', '$3', '$5']}.
-type -> '[' ']'                           : {type, ?line('$1'), nil, []}.
-type -> '[' top_type ']'                  : {type, ?line('$1'), list, ['$2']}.
-type -> '[' top_type ',' '...' ']'        : {type, ?line('$1'),
+type -> '[' ']'                           : {type, ?anno('$1'), nil, []}.
+type -> '[' top_type ']'                  : {type, ?anno('$1'), list, ['$2']}.
+type -> '[' top_type ',' '...' ']'        : {type, ?anno('$1'),
                                              nonempty_list, ['$2']}.
-type -> '#' '{' '}'                       : {type, ?line('$1'), map, []}.
-type -> '#' '{' map_pair_types '}'        : {type, ?line('$1'), map, '$3'}.
-type -> '{' '}'                           : {type, ?line('$1'), tuple, []}.
-type -> '{' top_types '}'                 : {type, ?line('$1'), tuple, '$2'}.
-type -> '#' atom '{' '}'                  : {type, ?line('$1'), record, ['$2']}.
-type -> '#' atom '{' field_types '}'      : {type, ?line('$1'),
+type -> '#' '{' '}'                       : {type, ?anno('$1'), map, []}.
+type -> '#' '{' map_pair_types '}'        : {type, ?anno('$1'), map, '$3'}.
+type -> '{' '}'                           : {type, ?anno('$1'), tuple, []}.
+type -> '{' top_types '}'                 : {type, ?anno('$1'), tuple, '$2'}.
+type -> '#' atom '{' '}'                  : {type, ?anno('$1'), record, ['$2']}.
+type -> '#' atom '{' field_types '}'      : {type, ?anno('$1'),
                                              record, ['$2'|'$4']}.
 type -> binary_type                       : '$1'.
 type -> integer                           : '$1'.
-type -> 'fun' '(' ')'                     : {type, ?line('$1'), 'fun', []}.
+type -> 'fun' '(' ')'                     : {type, ?anno('$1'), 'fun', []}.
 type -> 'fun' '(' fun_type_100 ')'        : '$3'.
 
 fun_type_100 -> '(' '...' ')' '->' top_type
-                                          : {type, ?line('$1'), 'fun',
-                                             [{type, ?line('$1'), any}, '$5']}.
+                                          : {type, ?anno('$1'), 'fun',
+                                             [{type, ?anno('$1'), any}, '$5']}.
 fun_type_100 -> fun_type                  : '$1'.
 
-fun_type -> '(' ')' '->' top_type  : {type, ?line('$1'), 'fun',
-                                      [{type, ?line('$1'), product, []}, '$4']}.
+fun_type -> '(' ')' '->' top_type  : {type, ?anno('$1'), 'fun',
+                                      [{type, ?anno('$1'), product, []}, '$4']}.
 fun_type -> '(' top_types ')' '->' top_type
-                                   : {type, ?line('$1'), 'fun',
-                                      [{type, ?line('$1'), product, '$2'},'$5']}.
+                                   : {type, ?anno('$1'), 'fun',
+                                      [{type, ?anno('$1'), product, '$2'},'$5']}.
 
 map_pair_types -> map_pair_type                    : ['$1'].
 map_pair_types -> map_pair_type ',' map_pair_types : ['$1'|'$3'].
-map_pair_type  -> top_type '=>' top_type           : {type, ?line('$2'), map_field_assoc,'$1','$3'}.
+map_pair_type  -> top_type '=>' top_type           : {type, ?anno('$2'), map_field_assoc,['$1','$3']}.
 
 field_types -> field_type                 : ['$1'].
 field_types -> field_type ',' field_types : ['$1'|'$3'].
 
-field_type -> atom '::' top_type          : {type, ?line('$1'), field_type,
+field_type -> atom '::' top_type          : {type, ?anno('$1'), field_type,
                                              ['$1', '$3']}.
 
-binary_type -> '<<' '>>'                  : {type, ?line('$1'),binary,
-					     [abstract(0, ?line('$1')),
-					      abstract(0, ?line('$1'))]}.
-binary_type -> '<<' bin_base_type '>>'    : {type, ?line('$1'),binary,
-					     ['$2', abstract(0, ?line('$1'))]}.
-binary_type -> '<<' bin_unit_type '>>'    : {type, ?line('$1'),binary,
-                                             [abstract(0, ?line('$1')), '$2']}.
+binary_type -> '<<' '>>'                  : {type, ?anno('$1'),binary,
+					     [abstract2(0, ?anno('$1')),
+					      abstract2(0, ?anno('$1'))]}.
+binary_type -> '<<' bin_base_type '>>'    : {type, ?anno('$1'),binary,
+					     ['$2', abstract2(0, ?anno('$1'))]}.
+binary_type -> '<<' bin_unit_type '>>'    : {type, ?anno('$1'),binary,
+                                             [abstract2(0, ?anno('$1')), '$2']}.
 binary_type -> '<<' bin_base_type ',' bin_unit_type '>>'
-                                    : {type, ?line('$1'), binary, ['$2', '$4']}.
+                                    : {type, ?anno('$1'), binary, ['$2', '$4']}.
 
 bin_base_type -> var ':' type          : build_bin_type(['$1'], '$3').
 
@@ -213,7 +210,7 @@ function_clauses -> function_clause : ['$1'].
 function_clauses -> function_clause ';' function_clauses : ['$1'|'$3'].
 
 function_clause -> atom clause_args clause_guard clause_body :
-	{clause,?line('$1'),element(3, '$1'),'$2','$3','$4'}.
+	{clause,?anno('$1'),element(3, '$1'),'$2','$3','$4'}.
 
 
 clause_args -> argument_list : element(1, '$1').
@@ -224,10 +221,10 @@ clause_guard -> '$empty' : [].
 clause_body -> '->' exprs: '$2'.
 
 
-expr -> 'catch' expr : {'catch',?line('$1'),'$2'}.
+expr -> 'catch' expr : {'catch',?anno('$1'),'$2'}.
 expr -> expr_100 : '$1'.
 
-expr_100 -> expr_150 '=' expr_100 : {match,?line('$2'),'$1','$3'}.
+expr_100 -> expr_150 '=' expr_100 : {match,?anno('$2'),'$1','$3'}.
 expr_100 -> expr_150 '!' expr_100 : ?mkop2('$1', '$2', '$3').
 expr_100 -> expr_150 : '$1'.
 
@@ -263,7 +260,7 @@ expr_700 -> record_expr : '$1'.
 expr_700 -> expr_800 : '$1'.
 
 expr_800 -> expr_max ':' expr_max :
-	{remote,?line('$2'),'$1','$3'}.
+	{remote,?anno('$2'),'$1','$3'}.
 expr_800 -> expr_max : '$1'.
 
 expr_max -> var : '$1'.
@@ -275,7 +272,7 @@ expr_max -> binary_comprehension : '$1'.
 expr_max -> tuple : '$1'.
 %%expr_max -> struct : '$1'.
 expr_max -> '(' expr ')' : '$2'.
-expr_max -> 'begin' exprs 'end' : {block,?line('$1'),'$2'}.
+expr_max -> 'begin' exprs 'end' : {block,?anno('$1'),'$2'}.
 expr_max -> if_expr : '$1'.
 expr_max -> case_expr : '$1'.
 expr_max -> receive_expr : '$1'.
@@ -283,22 +280,22 @@ expr_max -> fun_expr : '$1'.
 expr_max -> try_expr : '$1'.
 
 
-list -> '[' ']' : {nil,?line('$1')}.
-list -> '[' expr tail : {cons,?line('$1'),'$2','$3'}.
+list -> '[' ']' : {nil,?anno('$1')}.
+list -> '[' expr tail : {cons,?anno('$1'),'$2','$3'}.
 
-tail -> ']' : {nil,?line('$1')}.
+tail -> ']' : {nil,?anno('$1')}.
 tail -> '|' expr ']' : '$2'.
-tail -> ',' expr tail : {cons,?line('$2'),'$2','$3'}.
+tail -> ',' expr tail : {cons,?anno('$2'),'$2','$3'}.
 
 
-binary -> '<<' '>>' : {bin,?line('$1'),[]}.
-binary -> '<<' bin_elements '>>' : {bin,?line('$1'),'$2'}.
+binary -> '<<' '>>' : {bin,?anno('$1'),[]}.
+binary -> '<<' bin_elements '>>' : {bin,?anno('$1'),'$2'}.
 
 bin_elements -> bin_element : ['$1'].
 bin_elements -> bin_element ',' bin_elements : ['$1'|'$3'].
 
 bin_element -> bit_expr opt_bit_size_expr opt_bit_type_list :
-	{bin_element,?line('$1'),'$1','$2','$3'}.
+	{bin_element,?anno('$1'),'$1','$2','$3'}.
 
 bit_expr -> prefix_op expr_max : ?mkop1('$1', '$2').
 bit_expr -> expr_max : '$1'.
@@ -319,29 +316,29 @@ bit_size_expr -> expr_max : '$1'.
 
 
 list_comprehension -> '[' expr '||' lc_exprs ']' :
-	{lc,?line('$1'),'$2','$4'}.
+	{lc,?anno('$1'),'$2','$4'}.
 binary_comprehension -> '<<' binary '||' lc_exprs '>>' :
-	{bc,?line('$1'),'$2','$4'}.
+	{bc,?anno('$1'),'$2','$4'}.
 lc_exprs -> lc_expr : ['$1'].
 lc_exprs -> lc_expr ',' lc_exprs : ['$1'|'$3'].
 
 lc_expr -> expr : '$1'.
-lc_expr -> expr '<-' expr : {generate,?line('$2'),'$1','$3'}.
-lc_expr -> binary '<=' expr : {b_generate,?line('$2'),'$1','$3'}.
+lc_expr -> expr '<-' expr : {generate,?anno('$2'),'$1','$3'}.
+lc_expr -> binary '<=' expr : {b_generate,?anno('$2'),'$1','$3'}.
 
-tuple -> '{' '}' : {tuple,?line('$1'),[]}.
-tuple -> '{' exprs '}' : {tuple,?line('$1'),'$2'}.
+tuple -> '{' '}' : {tuple,?anno('$1'),[]}.
+tuple -> '{' exprs '}' : {tuple,?anno('$1'),'$2'}.
 
 
 %%struct -> atom tuple :
-%%	{struct,?line('$1'),element(3, '$1'),element(3, '$2')}.
+%%	{struct,?anno('$1'),element(3, '$1'),element(3, '$2')}.
 
 map_expr -> '#' map_tuple :
-	{map, ?line('$1'),'$2'}.
+	{map, ?anno('$1'),'$2'}.
 map_expr -> expr_max '#' map_tuple :
-	{map, ?line('$2'),'$1','$3'}.
+	{map, ?anno('$2'),'$1','$3'}.
 map_expr -> map_expr '#' map_tuple :
-	{map, ?line('$2'),'$1','$3'}.
+	{map, ?anno('$2'),'$1','$3'}.
 
 map_tuple -> '{' '}' : [].
 map_tuple -> '{' map_fields '}' : '$2'.
@@ -353,10 +350,10 @@ map_field -> map_field_assoc : '$1'.
 map_field -> map_field_exact : '$1'.
 
 map_field_assoc -> map_key '=>' expr :
-	{map_field_assoc,?line('$1'),'$1','$3'}.
+	{map_field_assoc,?anno('$1'),'$1','$3'}.
 
 map_field_exact -> map_key ':=' expr :
-	{map_field_exact,?line('$1'),'$1','$3'}.
+	{map_field_exact,?anno('$1'),'$1','$3'}.
 
 map_key -> expr : '$1'.
 
@@ -366,17 +363,17 @@ map_key -> expr : '$1'.
 %% always atoms for the moment, this might change in the future.
 
 record_expr -> '#' atom '.' atom :
-	{record_index,?line('$1'),element(3, '$2'),'$4'}.
+	{record_index,?anno('$1'),element(3, '$2'),'$4'}.
 record_expr -> '#' atom record_tuple :
-	{record,?line('$1'),element(3, '$2'),'$3'}.
+	{record,?anno('$1'),element(3, '$2'),'$3'}.
 record_expr -> expr_max '#' atom '.' atom :
-	{record_field,?line('$2'),'$1',element(3, '$3'),'$5'}.
+	{record_field,?anno('$2'),'$1',element(3, '$3'),'$5'}.
 record_expr -> expr_max '#' atom record_tuple :
-	{record,?line('$2'),'$1',element(3, '$3'),'$4'}.
+	{record,?anno('$2'),'$1',element(3, '$3'),'$4'}.
 record_expr -> record_expr '#' atom '.' atom :
-	{record_field,?line('$2'),'$1',element(3, '$3'),'$5'}.
+	{record_field,?anno('$2'),'$1',element(3, '$3'),'$5'}.
 record_expr -> record_expr '#' atom record_tuple :
-	{record,?line('$2'),'$1',element(3, '$3'),'$4'}.
+	{record,?anno('$2'),'$1',element(3, '$3'),'$4'}.
 
 record_tuple -> '{' '}' : [].
 record_tuple -> '{' record_fields '}' : '$2'.
@@ -384,47 +381,47 @@ record_tuple -> '{' record_fields '}' : '$2'.
 record_fields -> record_field : ['$1'].
 record_fields -> record_field ',' record_fields : ['$1' | '$3'].
 
-record_field -> var '=' expr : {record_field,?line('$1'),'$1','$3'}.
-record_field -> atom '=' expr : {record_field,?line('$1'),'$1','$3'}.
+record_field -> var '=' expr : {record_field,?anno('$1'),'$1','$3'}.
+record_field -> atom '=' expr : {record_field,?anno('$1'),'$1','$3'}.
 
 %% N.B. This is called from expr_700.
 
 function_call -> expr_800 argument_list :
-	{call,?line('$1'),'$1',element(1, '$2')}.
+	{call,?anno('$1'),'$1',element(1, '$2')}.
 
 
-if_expr -> 'if' if_clauses 'end' : {'if',?line('$1'),'$2'}.
+if_expr -> 'if' if_clauses 'end' : {'if',?anno('$1'),'$2'}.
 
 if_clauses -> if_clause : ['$1'].
 if_clauses -> if_clause ';' if_clauses : ['$1' | '$3'].
 
 if_clause -> guard clause_body :
-	{clause,?line(hd(hd('$1'))),[],'$1','$2'}.
+	{clause,?anno(hd(hd('$1'))),[],'$1','$2'}.
 
 
 case_expr -> 'case' expr 'of' cr_clauses 'end' :
-	{'case',?line('$1'),'$2','$4'}.
+	{'case',?anno('$1'),'$2','$4'}.
 
 cr_clauses -> cr_clause : ['$1'].
 cr_clauses -> cr_clause ';' cr_clauses : ['$1' | '$3'].
 
 cr_clause -> expr clause_guard clause_body :
-	{clause,?line('$1'),['$1'],'$2','$3'}.
+	{clause,?anno('$1'),['$1'],'$2','$3'}.
 
 receive_expr -> 'receive' cr_clauses 'end' :
-	{'receive',?line('$1'),'$2'}.
+	{'receive',?anno('$1'),'$2'}.
 receive_expr -> 'receive' 'after' expr clause_body 'end' :
-	{'receive',?line('$1'),[],'$3','$4'}.
+	{'receive',?anno('$1'),[],'$3','$4'}.
 receive_expr -> 'receive' cr_clauses 'after' expr clause_body 'end' :
-	{'receive',?line('$1'),'$2','$4','$5'}.
+	{'receive',?anno('$1'),'$2','$4','$5'}.
 
 
 fun_expr -> 'fun' atom '/' integer :
-	{'fun',?line('$1'),{function,element(3, '$2'),element(3, '$4')}}.
+	{'fun',?anno('$1'),{function,element(3, '$2'),element(3, '$4')}}.
 fun_expr -> 'fun' atom_or_var ':' atom_or_var '/' integer_or_var :
-	{'fun',?line('$1'),{function,'$2','$4','$6'}}.
+	{'fun',?anno('$1'),{function,'$2','$4','$6'}}.
 fun_expr -> 'fun' fun_clauses 'end' :
-	build_fun(?line('$1'), '$2').
+	build_fun(?anno('$1'), '$2').
 
 atom_or_var -> atom : '$1'.
 atom_or_var -> var : '$1'.
@@ -436,16 +433,16 @@ fun_clauses -> fun_clause : ['$1'].
 fun_clauses -> fun_clause ';' fun_clauses : ['$1' | '$3'].
 
 fun_clause -> argument_list clause_guard clause_body :
-	{Args,Pos} = '$1',
-	{clause,Pos,'fun',Args,'$2','$3'}.
+	{Args,Anno} = '$1',
+	{clause,Anno,'fun',Args,'$2','$3'}.
 
 fun_clause -> var argument_list clause_guard clause_body :
 	{clause,element(2, '$1'),element(3, '$1'),element(1, '$2'),'$3','$4'}.
 
 try_expr -> 'try' exprs 'of' cr_clauses try_catch :
-	build_try(?line('$1'),'$2','$4','$5').
+	build_try(?anno('$1'),'$2','$4','$5').
 try_expr -> 'try' exprs try_catch :
-	build_try(?line('$1'),'$2',[],'$3').
+	build_try(?anno('$1'),'$2',[],'$3').
 
 try_catch -> 'catch' try_clauses 'end' :
 	{'$2',[]}.
@@ -458,18 +455,18 @@ try_clauses -> try_clause : ['$1'].
 try_clauses -> try_clause ';' try_clauses : ['$1' | '$3'].
 
 try_clause -> expr clause_guard clause_body :
-	L = ?line('$1'),
-	{clause,L,[{tuple,L,[{atom,L,throw},'$1',{var,L,'_'}]}],'$2','$3'}.
+	A = ?anno('$1'),
+	{clause,A,[{tuple,A,[{atom,A,throw},'$1',{var,A,'_'}]}],'$2','$3'}.
 try_clause -> atom ':' expr clause_guard clause_body :
-	L = ?line('$1'),
-	{clause,L,[{tuple,L,['$1','$3',{var,L,'_'}]}],'$4','$5'}.
+	A = ?anno('$1'),
+	{clause,A,[{tuple,A,['$1','$3',{var,A,'_'}]}],'$4','$5'}.
 try_clause -> var ':' expr clause_guard clause_body :
-	L = ?line('$1'),
-	{clause,L,[{tuple,L,['$1','$3',{var,L,'_'}]}],'$4','$5'}.
+	A = ?anno('$1'),
+	{clause,A,[{tuple,A,['$1','$3',{var,A,'_'}]}],'$4','$5'}.
 
 
-argument_list -> '(' ')' : {[],?line('$1')}.
-argument_list -> '(' exprs ')' : {'$2',?line('$1')}.
+argument_list -> '(' ')' : {[],?anno('$1')}.
+argument_list -> '(' exprs ')' : {'$2',?anno('$1')}.
 
 
 exprs -> expr : ['$1'].
@@ -486,7 +483,7 @@ atomic -> strings : '$1'.
 
 strings -> string : '$1'.
 strings -> string strings :
-	{string,?line('$1'),element(3, '$1') ++ element(3, '$2')}.
+	{string,?anno('$1'),element(3, '$1') ++ element(3, '$2')}.
 
 prefix_op -> '+' : '$1'.
 prefix_op -> '-' : '$1'.
@@ -521,25 +518,20 @@ comp_op -> '>' : '$1'.
 comp_op -> '=:=' : '$1'.
 comp_op -> '=/=' : '$1'.
 
-rule -> rule_clauses : build_rule('$1').
-
-rule_clauses -> rule_clause : ['$1'].
-rule_clauses -> rule_clause ';' rule_clauses : ['$1'|'$3'].
-
-rule_clause -> atom clause_args clause_guard rule_body :
-	{clause,?line('$1'),element(3, '$1'),'$2','$3','$4'}.
-
-rule_body -> ':-' lc_exprs: '$2'.
-
-
 Erlang code.
 
 -export([parse_form/1,parse_exprs/1,parse_term/1]).
 -export([normalise/1,abstract/1,tokens/1,tokens/2]).
 -export([abstract/2]).
 -export([inop_prec/1,preop_prec/1,func_prec/0,max_prec/0]).
+-export([map_anno/2, fold_anno/3, mapfold_anno/3,
+         new_anno/1, anno_to_term/1, anno_from_term/1]).
 -export([set_line/2,get_attribute/2,get_attributes/1]).
 
+-deprecated([{set_line, 2, next_major_release},
+             {get_attribute, 2, next_major_release},
+             {get_attributes, 1, next_major_release}]).
+
 %% The following directive is needed for (significantly) faster compilation
 %% of the generated .erl file by the HiPE compiler.  Please do not remove.
 -compile([{hipe,[{regalloc,linear_scan}]}]).
@@ -547,30 +539,31 @@ Erlang code.
 -export_type([abstract_clause/0, abstract_expr/0, abstract_form/0,
               error_info/0]).
 
+%% XXX. To be refined.
 -type abstract_clause() :: term().
 -type abstract_expr() :: term().
 -type abstract_form() :: term().
 -type error_description() :: term().
--type error_info() :: {erl_scan:line(), module(), error_description()}.
+-type error_info() :: {erl_anno:line(), module(), error_description()}.
 -type token() :: erl_scan:token().
 
-%% mkop(Op, Arg) -> {op,Line,Op,Arg}.
-%% mkop(Left, Op, Right) -> {op,Line,Op,Left,Right}.
+%% mkop(Op, Arg) -> {op,Anno,Op,Arg}.
+%% mkop(Left, Op, Right) -> {op,Anno,Op,Left,Right}.
 
--define(mkop2(L, OpPos, R),
+-define(mkop2(L, OpAnno, R),
         begin
-            {Op,Pos} = OpPos,
-            {op,Pos,Op,L,R}
+            {Op,Anno} = OpAnno,
+            {op,Anno,Op,L,R}
         end).
 
--define(mkop1(OpPos, A),
+-define(mkop1(OpAnno, A),
         begin
-            {Op,Pos} = OpPos,
-            {op,Pos,Op,A}
+            {Op,Anno} = OpAnno,
+            {op,Anno,Op,A}
         end).
 
-%% keep track of line info in tokens
--define(line(Tup), element(2, Tup)).
+%% keep track of annotation info in tokens
+-define(anno(Tup), element(2, Tup)).
 
 %% Entry points compatible to old erl_parse.
 %% These really suck and are only here until Calle gets multiple
@@ -580,10 +573,10 @@ Erlang code.
       Tokens :: [token()],
       AbsForm :: abstract_form(),
       ErrorInfo :: error_info().
-parse_form([{'-',L1},{atom,L2,spec}|Tokens]) ->
-    parse([{'-',L1},{'spec',L2}|Tokens]);
-parse_form([{'-',L1},{atom,L2,callback}|Tokens]) ->
-    parse([{'-',L1},{'callback',L2}|Tokens]);
+parse_form([{'-',A1},{atom,A2,spec}|Tokens]) ->
+    parse([{'-',A1},{'spec',A2}|Tokens]);
+parse_form([{'-',A1},{atom,A2,callback}|Tokens]) ->
+    parse([{'-',A1},{'callback',A2}|Tokens]);
 parse_form(Tokens) ->
     parse(Tokens).
 
@@ -592,7 +585,8 @@ parse_form(Tokens) ->
       ExprList :: [abstract_expr()],
       ErrorInfo :: error_info().
 parse_exprs(Tokens) ->
-    case parse([{atom,0,f},{'(',0},{')',0},{'->',0}|Tokens]) of
+    A = erl_anno:new(0),
+    case parse([{atom,A,f},{'(',A},{')',A},{'->',A}|Tokens]) of
 	{ok,{function,_Lf,f,0,[{clause,_Lc,[],[],Exprs}]}} ->
 	    {ok,Exprs};
 	{error,_} = Err -> Err
@@ -603,42 +597,43 @@ parse_exprs(Tokens) ->
       Term :: term(),
       ErrorInfo :: error_info().
 parse_term(Tokens) ->
-    case parse([{atom,0,f},{'(',0},{')',0},{'->',0}|Tokens]) of
-	{ok,{function,_Lf,f,0,[{clause,_Lc,[],[],[Expr]}]}} ->
+    A = erl_anno:new(0),
+    case parse([{atom,A,f},{'(',A},{')',A},{'->',A}|Tokens]) of
+	{ok,{function,_Af,f,0,[{clause,_Ac,[],[],[Expr]}]}} ->
 	    try normalise(Expr) of
 		Term -> {ok,Term}
 	    catch
-		_:_R -> {error,{?line(Expr),?MODULE,"bad term"}}
+		_:_R -> {error,{location(?anno(Expr)),?MODULE,"bad term"}}
 	    end;
-	{ok,{function,_Lf,f,0,[{clause,_Lc,[],[],[_E1,E2|_Es]}]}} ->
-	    {error,{?line(E2),?MODULE,"bad term"}};
+	{ok,{function,_Af,f,A,[{clause,_Ac,[],[],[_E1,E2|_Es]}]}} ->
+	    {error,{location(?anno(E2)),?MODULE,"bad term"}};
 	{error,_} = Err -> Err
     end.
 
 -type attributes() :: 'export' | 'file' | 'import' | 'module'
 		    | 'opaque' | 'record' | 'type'.
 
-build_typed_attribute({atom,La,record},
-		      {typed_record, {atom,_Ln,RecordName}, RecTuple}) ->
-    {attribute,La,record,{RecordName,record_tuple(RecTuple)}};
-build_typed_attribute({atom,La,Attr},
+build_typed_attribute({atom,Aa,record},
+		      {typed_record, {atom,_An,RecordName}, RecTuple}) ->
+    {attribute,Aa,record,{RecordName,record_tuple(RecTuple)}};
+build_typed_attribute({atom,Aa,Attr},
                       {type_def, {call,_,{atom,_,TypeName},Args}, Type})
   when Attr =:= 'type' ; Attr =:= 'opaque' ->
     case lists:all(fun({var, _, _}) -> true;
                       (_)           -> false
                    end, Args) of
-        true -> {attribute,La,Attr,{TypeName,Type,Args}};
-        false -> error_bad_decl(La, Attr)
+        true -> {attribute,Aa,Attr,{TypeName,Type,Args}};
+        false -> error_bad_decl(Aa, Attr)
     end;
-build_typed_attribute({atom,La,Attr},_) ->
+build_typed_attribute({atom,Aa,Attr},_) ->
     case Attr of
-        record -> error_bad_decl(La, record);
-        type   -> error_bad_decl(La, type);
-	opaque -> error_bad_decl(La, opaque);
-        _      -> ret_err(La, "bad attribute")
+        record -> error_bad_decl(Aa, record);
+        type   -> error_bad_decl(Aa, type);
+	opaque -> error_bad_decl(Aa, opaque);
+        _      -> ret_err(Aa, "bad attribute")
     end.
 
-build_type_spec({Kind,La}, {SpecFun, TypeSpecs})
+build_type_spec({Kind,Aa}, {SpecFun, TypeSpecs})
   when (Kind =:= spec) or (Kind =:= callback) ->
     NewSpecFun =
 	case SpecFun of
@@ -653,7 +648,7 @@ build_type_spec({Kind,La}, {SpecFun, TypeSpecs})
 		%% Old style spec. Allow this for now.
 		{Mod,Fun,Arity}
 	    end,
-    {attribute,La,Kind,{NewSpecFun, TypeSpecs}}.
+    {attribute,Aa,Kind,{NewSpecFun, TypeSpecs}}.
 
 find_arity_from_specs([Spec|_]) ->
     %% Use the first spec to find the arity. If all are not the same,
@@ -665,99 +660,116 @@ find_arity_from_specs([Spec|_]) ->
     {type, _, 'fun', [{type, _, product, Args},_]} = Fun,
     length(Args).
 
+build_def({var, A, '_'}, _Types) ->
+    ret_err(A, "bad type variable");
 build_def(LHS, Types) ->
-    IsSubType = {atom, ?line(LHS), is_subtype},
-    {type, ?line(LHS), constraint, [IsSubType, [LHS, Types]]}.
+    IsSubType = {atom, ?anno(LHS), is_subtype},
+    {type, ?anno(LHS), constraint, [IsSubType, [LHS, Types]]}.
 
-lift_unions(T1, {type, _La, union, List}) ->
-    {type, ?line(T1), union, [T1|List]};
+lift_unions(T1, {type, _Aa, union, List}) ->
+    {type, ?anno(T1), union, [T1|List]};
 lift_unions(T1, T2) ->
-    {type, ?line(T1), union, [T1, T2]}.
+    {type, ?anno(T1), union, [T1, T2]}.
 
-skip_paren({paren_type,_L,[Type]}) ->
+skip_paren({paren_type,_A,[Type]}) ->
     skip_paren(Type);
 skip_paren(Type) ->
     Type.
 
-build_gen_type({atom, La, tuple}) ->
-    {type, La, tuple, any};
-build_gen_type({atom, La, map}) ->
-    {type, La, map, any};
-build_gen_type({atom, La, Name}) ->
-    {type, La, Name, []}.
+build_gen_type({atom, Aa, tuple}) ->
+    {type, Aa, tuple, any};
+build_gen_type({atom, Aa, map}) ->
+    {type, Aa, map, any};
+build_gen_type({atom, Aa, Name}) ->
+    Tag = type_tag(Name, 0),
+    {Tag, Aa, Name, []}.
 
 build_bin_type([{var, _, '_'}|Left], Int) ->
     build_bin_type(Left, Int);
 build_bin_type([], Int) ->
     skip_paren(Int);
-build_bin_type([{var, La, _}|_], _) ->
-    ret_err(La, "Bad binary type").
+build_bin_type([{var, Aa, _}|_], _) ->
+    ret_err(Aa, "Bad binary type").
+
+build_type({atom, A, Name}, Types) ->
+    Tag = type_tag(Name, length(Types)),
+    {Tag, A, Name, Types}.
+
+type_tag(TypeName, NumberOfTypeVariables) ->
+    case erl_internal:is_type(TypeName, NumberOfTypeVariables) of
+        true -> type;
+        false -> user_type
+    end.
+
+abstract2(Term, Anno) ->
+    Line = erl_anno:line(Anno),
+    abstract(Term, Line).
 
 %% build_attribute(AttrName, AttrValue) ->
-%%	{attribute,Line,module,Module}
-%%	{attribute,Line,export,Exports}
-%%	{attribute,Line,import,Imports}
-%%	{attribute,Line,record,{Name,Inits}}
-%%	{attribute,Line,file,{Name,Line}}
-%%	{attribute,Line,Name,Val}
-
-build_attribute({atom,La,module}, Val) ->
+%%	{attribute,Anno,module,Module}
+%%	{attribute,Anno,export,Exports}
+%%	{attribute,Anno,import,Imports}
+%%	{attribute,Anno,record,{Name,Inits}}
+%%	{attribute,Anno,file,{Name,Line}}
+%%	{attribute,Anno,Name,Val}
+
+build_attribute({atom,Aa,module}, Val) ->
     case Val of
-	[{atom,_Lm,Module}] ->
-	    {attribute,La,module,Module};
-	[{atom,_Lm,Module},ExpList] ->
-	    {attribute,La,module,{Module,var_list(ExpList)}};
+	[{atom,_Am,Module}] ->
+	    {attribute,Aa,module,Module};
+	[{atom,_Am,Module},ExpList] ->
+	    {attribute,Aa,module,{Module,var_list(ExpList)}};
 	_Other ->
-	    error_bad_decl(La, module)
+	    error_bad_decl(Aa, module)
     end;
-build_attribute({atom,La,export}, Val) ->
+build_attribute({atom,Aa,export}, Val) ->
     case Val of
 	[ExpList] ->
-	    {attribute,La,export,farity_list(ExpList)};
-	_Other -> error_bad_decl(La, export)
+	    {attribute,Aa,export,farity_list(ExpList)};
+	_Other -> error_bad_decl(Aa, export)
     end;
-build_attribute({atom,La,import}, Val) ->
+build_attribute({atom,Aa,import}, Val) ->
     case Val of
-	[{atom,_Lm,Mod},ImpList] ->
-	    {attribute,La,import,{Mod,farity_list(ImpList)}};
-	_Other -> error_bad_decl(La, import)
+	[{atom,_Am,Mod},ImpList] ->
+	    {attribute,Aa,import,{Mod,farity_list(ImpList)}};
+	_Other -> error_bad_decl(Aa, import)
     end;
-build_attribute({atom,La,record}, Val) ->
+build_attribute({atom,Aa,record}, Val) ->
     case Val of
-	[{atom,_Ln,Record},RecTuple] ->
-	    {attribute,La,record,{Record,record_tuple(RecTuple)}};
-	_Other -> error_bad_decl(La, record)
+	[{atom,_An,Record},RecTuple] ->
+	    {attribute,Aa,record,{Record,record_tuple(RecTuple)}};
+	_Other -> error_bad_decl(Aa, record)
     end;
-build_attribute({atom,La,file}, Val) ->
+build_attribute({atom,Aa,file}, Val) ->
     case Val of
-	[{string,_Ln,Name},{integer,_Ll,Line}] ->
-	    {attribute,La,file,{Name,Line}};
-	_Other -> error_bad_decl(La, file)
+	[{string,_An,Name},{integer,_Al,Line}] ->
+	    {attribute,Aa,file,{Name,Line}};
+	_Other -> error_bad_decl(Aa, file)
     end;
-build_attribute({atom,La,Attr}, Val) ->
+build_attribute({atom,Aa,Attr}, Val) ->
     case Val of
 	[Expr0] ->
 	    Expr = attribute_farity(Expr0),
-	    {attribute,La,Attr,term(Expr)};
-	_Other -> ret_err(La, "bad attribute")
+	    {attribute,Aa,Attr,term(Expr)};
+	_Other -> ret_err(Aa, "bad attribute")
     end.
 
-var_list({cons,_Lc,{var,_,V},Tail}) ->
+var_list({cons,_Ac,{var,_,V},Tail}) ->
     [V|var_list(Tail)];
-var_list({nil,_Ln}) -> [];
+var_list({nil,_An}) -> [];
 var_list(Other) ->
-    ret_err(?line(Other), "bad variable list").
+    ret_err(?anno(Other), "bad variable list").
 
-attribute_farity({cons,L,H,T}) ->
-    {cons,L,attribute_farity(H),attribute_farity(T)};
-attribute_farity({tuple,L,Args0}) ->
+attribute_farity({cons,A,H,T}) ->
+    {cons,A,attribute_farity(H),attribute_farity(T)};
+attribute_farity({tuple,A,Args0}) ->
     Args = attribute_farity_list(Args0),
-    {tuple,L,Args};
-attribute_farity({map,L,Args0}) ->
+    {tuple,A,Args};
+attribute_farity({map,A,Args0}) ->
     Args = attribute_farity_map(Args0),
-    {map,L,Args};
-attribute_farity({op,L,'/',{atom,_,_}=Name,{integer,_,_}=Arity}) ->
-    {tuple,L,[Name,Arity]};
+    {map,A,Args};
+attribute_farity({op,A,'/',{atom,_,_}=Name,{integer,_,_}=Arity}) ->
+    {tuple,A,[Name,Arity]};
 attribute_farity(Other) -> Other.
 
 attribute_farity_list(Args) ->
@@ -765,45 +777,45 @@ attribute_farity_list(Args) ->
 
 %% It is not meaningful to have farity keys.
 attribute_farity_map(Args) ->
-    [{Op,L,K,attribute_farity(V)} || {Op,L,K,V} <- Args].
+    [{Op,A,K,attribute_farity(V)} || {Op,A,K,V} <- Args].
 
--spec error_bad_decl(integer(), attributes()) -> no_return().
+-spec error_bad_decl(erl_anno:anno(), attributes()) -> no_return().
 
-error_bad_decl(L, S) ->
-    ret_err(L, io_lib:format("bad ~w declaration", [S])).
+error_bad_decl(Anno, S) ->
+    ret_err(Anno, io_lib:format("bad ~w declaration", [S])).
 
-farity_list({cons,_Lc,{op,_Lo,'/',{atom,_La,A},{integer,_Li,I}},Tail}) ->
+farity_list({cons,_Ac,{op,_Ao,'/',{atom,_Aa,A},{integer,_Ai,I}},Tail}) ->
     [{A,I}|farity_list(Tail)];
-farity_list({nil,_Ln}) -> [];
+farity_list({nil,_An}) -> [];
 farity_list(Other) ->
-    ret_err(?line(Other), "bad function arity").
+    ret_err(?anno(Other), "bad function arity").
 
-record_tuple({tuple,_Lt,Fields}) ->
+record_tuple({tuple,_At,Fields}) ->
     record_fields(Fields);
 record_tuple(Other) ->
-    ret_err(?line(Other), "bad record declaration").
+    ret_err(?anno(Other), "bad record declaration").
 
-record_fields([{atom,La,A}|Fields]) ->
-    [{record_field,La,{atom,La,A}}|record_fields(Fields)];
-record_fields([{match,_Lm,{atom,La,A},Expr}|Fields]) ->
-    [{record_field,La,{atom,La,A},Expr}|record_fields(Fields)];
+record_fields([{atom,Aa,A}|Fields]) ->
+    [{record_field,Aa,{atom,Aa,A}}|record_fields(Fields)];
+record_fields([{match,_Am,{atom,Aa,A},Expr}|Fields]) ->
+    [{record_field,Aa,{atom,Aa,A},Expr}|record_fields(Fields)];
 record_fields([{typed,Expr,TypeInfo}|Fields]) ->
     [Field] = record_fields([Expr]),
     TypeInfo1 =
 	case Expr of
 	    {match, _, _, _} -> TypeInfo; %% If we have an initializer.
-	    {atom, La, _} ->
+	    {atom, Aa, _} ->
                 case has_undefined(TypeInfo) of
                     false ->
                         TypeInfo2 = maybe_add_paren(TypeInfo),
-                        lift_unions(abstract(undefined, La), TypeInfo2);
+                        lift_unions(abstract2(undefined, Aa), TypeInfo2);
                     true ->
                         TypeInfo
                 end
 	end,
     [{typed_record_field,Field,TypeInfo1}|record_fields(Fields)];
 record_fields([Other|_Fields]) ->
-    ret_err(?line(Other), "bad record field");
+    ret_err(?anno(Other), "bad record field");
 record_fields([]) -> [].
 
 has_undefined({atom,_,undefined}) ->
@@ -817,59 +829,53 @@ has_undefined({type,_,union,Ts}) ->
 has_undefined(_) ->
     false.
 
-maybe_add_paren({ann_type,L,T}) ->
-    {paren_type,L,[{ann_type,L,T}]};
+maybe_add_paren({ann_type,A,T}) ->
+    {paren_type,A,[{ann_type,A,T}]};
 maybe_add_paren(T) ->
     T.
 
 term(Expr) ->
     try normalise(Expr)
-    catch _:_R -> ret_err(?line(Expr), "bad attribute")
+    catch _:_R -> ret_err(?anno(Expr), "bad attribute")
     end.
 
-%% build_function([Clause]) -> {function,Line,Name,Arity,[Clause]}
+%% build_function([Clause]) -> {function,Anno,Name,Arity,[Clause]}
 
 build_function(Cs) ->
     Name = element(3, hd(Cs)),
     Arity = length(element(4, hd(Cs))),
-    {function,?line(hd(Cs)),Name,Arity,check_clauses(Cs, Name, Arity)}.
-
-%% build_rule([Clause]) -> {rule,Line,Name,Arity,[Clause]'}
-
-build_rule(Cs) ->
-    Name = element(3, hd(Cs)),
-    Arity = length(element(4, hd(Cs))),
-    {rule,?line(hd(Cs)),Name,Arity,check_clauses(Cs, Name, Arity)}.
+    {function,?anno(hd(Cs)),Name,Arity,check_clauses(Cs, Name, Arity)}.
 
-%% build_fun(Line, [Clause]) -> {'fun',Line,{clauses,[Clause]}}.
+%% build_fun(Anno, [Clause]) -> {'fun',Anno,{clauses,[Clause]}}.
 
-build_fun(Line, Cs) ->
+build_fun(Anno, Cs) ->
     Name = element(3, hd(Cs)),
     Arity = length(element(4, hd(Cs))),
     CheckedCs = check_clauses(Cs, Name, Arity),
     case Name of
         'fun' ->
-            {'fun',Line,{clauses,CheckedCs}};
+            {'fun',Anno,{clauses,CheckedCs}};
         Name ->
-            {named_fun,Line,Name,CheckedCs}
+            {named_fun,Anno,Name,CheckedCs}
     end.
 
 check_clauses(Cs, Name, Arity) ->
     [case C of
-         {clause,L,N,As,G,B} when N =:= Name, length(As) =:= Arity ->
-             {clause,L,As,G,B};
-         {clause,L,_N,_As,_G,_B} ->
-             ret_err(L, "head mismatch")
+         {clause,A,N,As,G,B} when N =:= Name, length(As) =:= Arity ->
+             {clause,A,As,G,B};
+         {clause,A,_N,_As,_G,_B} ->
+             ret_err(A, "head mismatch")
      end || C <- Cs].
 
-build_try(L,Es,Scs,{Ccs,As}) ->
-    {'try',L,Es,Scs,Ccs,As}.
+build_try(A,Es,Scs,{Ccs,As}) ->
+    {'try',A,Es,Scs,Ccs,As}.
 
 -spec ret_err(_, _) -> no_return().
-ret_err(L, S) ->
-    {location,Location} = get_attribute(L, location),
-    return_error(Location, S).
+ret_err(Anno, S) ->
+    return_error(location(Anno), S).
 
+location(Anno) ->
+    erl_anno:location(Anno).
 
 %%  Convert between the abstract form of a term and a term.
 
@@ -917,7 +923,8 @@ normalise_list([]) ->
       Data :: term(),
       AbsTerm :: abstract_expr().
 abstract(T) ->
-    abstract(T, 0, enc_func(epp:default_encoding())).
+    Anno = erl_anno:new(0),
+    abstract(T, Anno, enc_func(epp:default_encoding())).
 
 -type encoding_func() :: fun((non_neg_integer()) -> boolean()).
 
@@ -927,16 +934,18 @@ abstract(T) ->
       Options :: Line | [Option],
       Option :: {line, Line} | {encoding, Encoding},
       Encoding :: 'latin1' | 'unicode' | 'utf8' | 'none' | encoding_func(),
-      Line :: erl_scan:line(),
+      Line :: erl_anno:line(),
       AbsTerm :: abstract_expr().
 
 abstract(T, Line) when is_integer(Line) ->
-    abstract(T, Line, enc_func(epp:default_encoding()));
+    Anno = erl_anno:new(Line),
+    abstract(T, Anno, enc_func(epp:default_encoding()));
 abstract(T, Options) when is_list(Options) ->
     Line = proplists:get_value(line, Options, 0),
     Encoding = proplists:get_value(encoding, Options,epp:default_encoding()),
     EncFunc = enc_func(Encoding),
-    abstract(T, Line, EncFunc).
+    Anno = erl_anno:new(Line),
+    abstract(T, Anno, EncFunc).
 
 -define(UNICODE(C),
          (C < 16#D800 orelse
@@ -950,53 +959,53 @@ enc_func(none) -> none;
 enc_func(Fun) when is_function(Fun, 1) -> Fun;
 enc_func(Term) -> erlang:error({badarg, Term}).
 
-abstract(T, L, _E) when is_integer(T) -> {integer,L,T};
-abstract(T, L, _E) when is_float(T) -> {float,L,T};
-abstract(T, L, _E) when is_atom(T) -> {atom,L,T};
-abstract([], L, _E) -> {nil,L};
-abstract(B, L, _E) when is_bitstring(B) ->
-    {bin, L, [abstract_byte(Byte, L) || Byte <- bitstring_to_list(B)]};
-abstract([H|T], L, none=E) ->
-    {cons,L,abstract(H, L, E),abstract(T, L, E)};
-abstract(List, L, E) when is_list(List) ->
-    abstract_list(List, [], L, E);
-abstract(Tuple, L, E) when is_tuple(Tuple) ->
-    {tuple,L,abstract_tuple_list(tuple_to_list(Tuple), L, E)};
-abstract(Map, L, E) when is_map(Map) ->
-    {map,L,abstract_map_fields(maps:to_list(Map),L,E)}.
-
-abstract_list([H|T], String, L, E) ->
+abstract(T, A, _E) when is_integer(T) -> {integer,A,T};
+abstract(T, A, _E) when is_float(T) -> {float,A,T};
+abstract(T, A, _E) when is_atom(T) -> {atom,A,T};
+abstract([], A, _E) -> {nil,A};
+abstract(B, A, _E) when is_bitstring(B) ->
+    {bin, A, [abstract_byte(Byte, A) || Byte <- bitstring_to_list(B)]};
+abstract([H|T], A, none=E) ->
+    {cons,A,abstract(H, A, E),abstract(T, A, E)};
+abstract(List, A, E) when is_list(List) ->
+    abstract_list(List, [], A, E);
+abstract(Tuple, A, E) when is_tuple(Tuple) ->
+    {tuple,A,abstract_tuple_list(tuple_to_list(Tuple), A, E)};
+abstract(Map, A, E) when is_map(Map) ->
+    {map,A,abstract_map_fields(maps:to_list(Map),A,E)}.
+
+abstract_list([H|T], String, A, E) ->
     case is_integer(H) andalso H >= 0 andalso E(H) of
         true ->
-            abstract_list(T, [H|String], L, E);
+            abstract_list(T, [H|String], A, E);
         false ->
-            AbstrList = {cons,L,abstract(H, L, E),abstract(T, L, E)},
-            not_string(String, AbstrList, L, E)
+            AbstrList = {cons,A,abstract(H, A, E),abstract(T, A, E)},
+            not_string(String, AbstrList, A, E)
     end;
-abstract_list([], String, L, _E) ->
-    {string, L, lists:reverse(String)};
-abstract_list(T, String, L, E) ->
-    not_string(String, abstract(T, L, E), L, E).
-
-not_string([C|T], Result, L, E) ->
-    not_string(T, {cons, L, {integer, L, C}, Result}, L, E);
-not_string([], Result, _L, _E) ->
+abstract_list([], String, A, _E) ->
+    {string, A, lists:reverse(String)};
+abstract_list(T, String, A, E) ->
+    not_string(String, abstract(T, A, E), A, E).
+
+not_string([C|T], Result, A, E) ->
+    not_string(T, {cons, A, {integer, A, C}, Result}, A, E);
+not_string([], Result, _A, _E) ->
     Result.
 
-abstract_tuple_list([H|T], L, E) ->
-    [abstract(H, L, E)|abstract_tuple_list(T, L, E)];
-abstract_tuple_list([], _L, _E) ->
+abstract_tuple_list([H|T], A, E) ->
+    [abstract(H, A, E)|abstract_tuple_list(T, A, E)];
+abstract_tuple_list([], _A, _E) ->
     [].
 
-abstract_map_fields(Fs,L,E) ->
-    [{map_field_assoc,L,abstract(K,L,E),abstract(V,L,E)}||{K,V}<-Fs].
+abstract_map_fields(Fs,A,E) ->
+    [{map_field_assoc,A,abstract(K,A,E),abstract(V,A,E)}||{K,V}<-Fs].
 
-abstract_byte(Byte, L) when is_integer(Byte) ->
-    {bin_element, L, {integer, L, Byte}, default, default};
-abstract_byte(Bits, L) ->
+abstract_byte(Byte, A) when is_integer(Byte) ->
+    {bin_element, A, {integer, A, Byte}, default, default};
+abstract_byte(Bits, A) ->
     Sz = bit_size(Bits),
     <<Val:Sz>> = Bits,
-    {bin_element, L, {integer, L, Val}, {integer, L, Sz}, default}.
+    {bin_element, A, {integer, A, Val}, {integer, A, Sz}, default}.
 
 %%  Generate a list of tokens representing the abstract term.
 
@@ -1010,32 +1019,32 @@ tokens(Abs) ->
       AbsTerm :: abstract_expr(),
       MoreTokens :: [token()],
       Tokens :: [token()].
-tokens({char,L,C}, More) -> [{char,L,C}|More];
-tokens({integer,L,N}, More) -> [{integer,L,N}|More];
-tokens({float,L,F}, More) -> [{float,L,F}|More];
-tokens({atom,L,A}, More) -> [{atom,L,A}|More];
-tokens({var,L,V}, More) -> [{var,L,V}|More];
-tokens({string,L,S}, More) -> [{string,L,S}|More];
-tokens({nil,L}, More) -> [{'[',L},{']',L}|More];
-tokens({cons,L,Head,Tail}, More) ->
-    [{'[',L}|tokens(Head, tokens_tail(Tail, More))];
-tokens({tuple,L,[]}, More) ->
-    [{'{',L},{'}',L}|More];
-tokens({tuple,L,[E|Es]}, More) ->
-    [{'{',L}|tokens(E, tokens_tuple(Es, ?line(E), More))].
-
-tokens_tail({cons,L,Head,Tail}, More) ->
-    [{',',L}|tokens(Head, tokens_tail(Tail, More))];
-tokens_tail({nil,L}, More) ->
-    [{']',L}|More];
+tokens({char,A,C}, More) -> [{char,A,C}|More];
+tokens({integer,A,N}, More) -> [{integer,A,N}|More];
+tokens({float,A,F}, More) -> [{float,A,F}|More];
+tokens({atom,Aa,A}, More) -> [{atom,Aa,A}|More];
+tokens({var,A,V}, More) -> [{var,A,V}|More];
+tokens({string,A,S}, More) -> [{string,A,S}|More];
+tokens({nil,A}, More) -> [{'[',A},{']',A}|More];
+tokens({cons,A,Head,Tail}, More) ->
+    [{'[',A}|tokens(Head, tokens_tail(Tail, More))];
+tokens({tuple,A,[]}, More) ->
+    [{'{',A},{'}',A}|More];
+tokens({tuple,A,[E|Es]}, More) ->
+    [{'{',A}|tokens(E, tokens_tuple(Es, ?anno(E), More))].
+
+tokens_tail({cons,A,Head,Tail}, More) ->
+    [{',',A}|tokens(Head, tokens_tail(Tail, More))];
+tokens_tail({nil,A}, More) ->
+    [{']',A}|More];
 tokens_tail(Other, More) ->
-    L = ?line(Other),
-    [{'|',L}|tokens(Other, [{']',L}|More])].
+    A = ?anno(Other),
+    [{'|',A}|tokens(Other, [{']',A}|More])].
 
-tokens_tuple([E|Es], Line, More) ->
-    [{',',Line}|tokens(E, tokens_tuple(Es, ?line(E), More))];
-tokens_tuple([], Line, More) ->
-    [{'}',Line}|More].
+tokens_tuple([E|Es], Anno, More) ->
+    [{',',Anno}|tokens(E, tokens_tuple(Es, ?anno(E), More))];
+tokens_tuple([], Anno, More) ->
+    [{'}',Anno}|More].
 
 %% Give the relative precedences of operators.
 
@@ -1100,13 +1109,168 @@ max_prec() -> 900.
 %%% longer apply. To get all present attributes as a property list
 %%% get_attributes() should be used.
 
+-compile({nowarn_deprecated_function,{erl_scan,set_attribute,3}}).
 set_line(L, F) ->
     erl_scan:set_attribute(line, L, F).
 
+-compile({nowarn_deprecated_function,{erl_scan,attributes_info,2}}).
 get_attribute(L, Name) ->
     erl_scan:attributes_info(L, Name).
 
+-compile({nowarn_deprecated_function,{erl_scan,attributes_info,1}}).
 get_attributes(L) ->
     erl_scan:attributes_info(L).
 
+-spec map_anno(Fun, Abstr) -> NewAbstr when
+      Fun :: fun((Anno) -> Anno),
+      Anno :: erl_anno:anno(),
+      Abstr :: abstract_form() | abstract_expr(),
+      NewAbstr :: abstract_form() | abstract_expr().
+
+map_anno(F0, Abstr) ->
+    F = fun(A, Acc) -> {F0(A), Acc} end,
+    {NewAbstr, []} = modify_anno1(Abstr, [], F),
+    NewAbstr.
+
+-spec fold_anno(Fun, Acc0, Abstr) -> NewAbstr when
+      Fun :: fun((Anno, AccIn) -> AccOut),
+      Anno :: erl_anno:anno(),
+      Acc0 :: term(),
+      AccIn :: term(),
+      AccOut :: term(),
+      Abstr :: abstract_form() | abstract_expr(),
+      NewAbstr :: abstract_form() | abstract_expr().
+
+fold_anno(F0, Acc0, Abstr) ->
+    F = fun(A, Acc) -> {A, F0(A, Acc)} end,
+    {_, NewAcc} = modify_anno1(Abstr, Acc0, F),
+    NewAcc.
+
+-spec mapfold_anno(Fun, Acc0, Abstr) -> {NewAbstr, Acc1} when
+      Fun :: fun((Anno, AccIn) -> {Anno, AccOut}),
+      Anno :: erl_anno:anno(),
+      Acc0 :: term(),
+      Acc1 :: term(),
+      AccIn :: term(),
+      AccOut :: term(),
+      Abstr :: abstract_form() | abstract_expr(),
+      NewAbstr :: abstract_form() | abstract_expr().
+
+mapfold_anno(F, Acc0, Abstr) ->
+    modify_anno1(Abstr, Acc0, F).
+
+-spec new_anno(Term) -> Abstr when
+      Term :: term(),
+      Abstr :: abstract_form() | abstract_expr().
+
+new_anno(Term) ->
+    map_anno(fun erl_anno:new/1, Term).
+
+-spec anno_to_term(Abstr) -> term() when
+      Abstr :: abstract_form() | abstract_expr().
+
+anno_to_term(Abstract) ->
+    map_anno(fun erl_anno:to_term/1, Abstract).
+
+-spec anno_from_term(Term) -> abstract_form() | abstract_expr() when
+      Term :: term().
+
+anno_from_term(Term) ->
+    map_anno(fun erl_anno:from_term/1, Term).
+
+%% Forms.
+%% Recognize what sys_pre_expand does:
+modify_anno1({'fun',A,F,{_,_,_}=Id}, Ac, Mf) ->
+    {A1,Ac1} = Mf(A, Ac),
+    {F1,Ac2} = modify_anno1(F, Ac1, Mf),
+    {{'fun',A1,F1,Id},Ac2};
+modify_anno1({named_fun,A,N,F,{_,_,_}=Id}, Ac, Mf) ->
+    {A1,Ac1} = Mf(A, Ac),
+    {F1,Ac2} = modify_anno1(F, Ac1, Mf),
+    {{named_fun,A1,N,F1,Id},Ac2};
+modify_anno1({attribute,A,N,[V]}, Ac, Mf) ->
+    {{attribute,A1,N1,V1},Ac1} = modify_anno1({attribute,A,N,V}, Ac, Mf),
+    {{attribute,A1,N1,[V1]},Ac1};
+%% End of sys_pre_expand special forms.
+modify_anno1({function,F,A}, Ac, _Mf) ->
+    {{function,F,A},Ac};
+modify_anno1({function,M,F,A}, Ac, Mf) ->
+    {M1,Ac1} = modify_anno1(M, Ac, Mf),
+    {F1,Ac2} = modify_anno1(F, Ac1, Mf),
+    {A1,Ac3} = modify_anno1(A, Ac2, Mf),
+    {{function,M1,F1,A1},Ac3};
+modify_anno1({attribute,A,record,{Name,Fields}}, Ac, Mf) ->
+    {A1,Ac1} = Mf(A, Ac),
+    {Fields1,Ac2} = modify_anno1(Fields, Ac1, Mf),
+    {{attribute,A1,record,{Name,Fields1}},Ac2};
+modify_anno1({attribute,A,spec,{Fun,Types}}, Ac, Mf) ->
+    {A1,Ac1} = Mf(A, Ac),
+    {Types1,Ac2} = modify_anno1(Types, Ac1, Mf),
+    {{attribute,A1,spec,{Fun,Types1}},Ac2};
+modify_anno1({attribute,A,callback,{Fun,Types}}, Ac, Mf) ->
+    {A1,Ac1} = Mf(A, Ac),
+    {Types1,Ac2} = modify_anno1(Types, Ac1, Mf),
+    {{attribute,A1,callback,{Fun,Types1}},Ac2};
+modify_anno1({attribute,A,type,{TypeName,TypeDef,Args}}, Ac, Mf) ->
+    {A1,Ac1} = Mf(A, Ac),
+    {TypeDef1,Ac2} = modify_anno1(TypeDef, Ac1, Mf),
+    {Args1,Ac3} = modify_anno1(Args, Ac2, Mf),
+    {{attribute,A1,type,{TypeName,TypeDef1,Args1}},Ac3};
+modify_anno1({attribute,A,opaque,{TypeName,TypeDef,Args}}, Ac, Mf) ->
+    {A1,Ac1} = Mf(A, Ac),
+    {TypeDef1,Ac2} = modify_anno1(TypeDef, Ac1, Mf),
+    {Args1,Ac3} = modify_anno1(Args, Ac2, Mf),
+    {{attribute,A1,opaque,{TypeName,TypeDef1,Args1}},Ac3};
+modify_anno1({attribute,A,Attr,Val}, Ac, Mf) ->
+    {A1,Ac1} = Mf(A, Ac),
+    {{attribute,A1,Attr,Val},Ac1};
+modify_anno1({warning,W}, Ac, _Mf) ->
+    {{warning,W},Ac};
+modify_anno1({error,W}, Ac, _Mf) ->
+    {{error,W},Ac};
+%% Expressions.
+modify_anno1({clauses,Cs}, Ac, Mf) ->
+    {Cs1,Ac1} = modify_anno1(Cs, Ac, Mf),
+    {{clauses,Cs1},Ac1};
+modify_anno1({typed_record_field,Field,Type}, Ac, Mf) ->
+    {Field1,Ac1} = modify_anno1(Field, Ac, Mf),
+    {Type1,Ac2} = modify_anno1(Type, Ac1, Mf),
+    {{typed_record_field,Field1,Type1},Ac2};
+modify_anno1({Tag,A}, Ac, Mf) ->
+    {A1,Ac1} = Mf(A, Ac),
+    {{Tag,A1},Ac1};
+modify_anno1({Tag,A,E1}, Ac, Mf) ->
+    {A1,Ac1} = Mf(A, Ac),
+    {E11,Ac2} = modify_anno1(E1, Ac1, Mf),
+    {{Tag,A1,E11},Ac2};
+modify_anno1({Tag,A,E1,E2}, Ac, Mf) ->
+    {A1,Ac1} = Mf(A, Ac),
+    {E11,Ac2} = modify_anno1(E1, Ac1, Mf),
+    {E21,Ac3} = modify_anno1(E2, Ac2, Mf),
+    {{Tag,A1,E11,E21},Ac3};
+modify_anno1({bin_element,A,E1,E2,TSL}, Ac, Mf) ->
+    {A1,Ac1} = Mf(A, Ac),
+    {E11,Ac2} = modify_anno1(E1, Ac1, Mf),
+    {E21,Ac3} = modify_anno1(E2, Ac2, Mf),
+    {{bin_element,A1,E11,E21, TSL},Ac3};
+modify_anno1({Tag,A,E1,E2,E3}, Ac, Mf) ->
+    {A1,Ac1} = Mf(A, Ac),
+    {E11,Ac2} = modify_anno1(E1, Ac1, Mf),
+    {E21,Ac3} = modify_anno1(E2, Ac2, Mf),
+    {E31,Ac4} = modify_anno1(E3, Ac3, Mf),
+    {{Tag,A1,E11,E21,E31},Ac4};
+modify_anno1({Tag,A,E1,E2,E3,E4}, Ac, Mf) ->
+    {A1,Ac1} = Mf(A, Ac),
+    {E11,Ac2} = modify_anno1(E1, Ac1, Mf),
+    {E21,Ac3} = modify_anno1(E2, Ac2, Mf),
+    {E31,Ac4} = modify_anno1(E3, Ac3, Mf),
+    {E41,Ac5} = modify_anno1(E4, Ac4, Mf),
+    {{Tag,A1,E11,E21,E31,E41},Ac5};
+modify_anno1([H|T], Ac, Mf) ->
+    {H1,Ac1} = modify_anno1(H, Ac, Mf),
+    {T1,Ac2} = modify_anno1(T, Ac1, Mf),
+    {[H1|T1],Ac2};
+modify_anno1([], Ac, _Mf) -> {[],Ac};
+modify_anno1(E, Ac, _Mf) when not is_tuple(E), not is_list(E) -> {E,Ac}.
+
 %% vim: ft=erlang
diff --git a/lib/stdlib/src/erl_pp.erl b/lib/stdlib/src/erl_pp.erl
index 1fd6d2a8df..623a29f923 100644
--- a/lib/stdlib/src/erl_pp.erl
+++ b/lib/stdlib/src/erl_pp.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -22,7 +22,7 @@
 %%% the parser. It does not always produce pretty code.
 
 -export([form/1,form/2,
-         attribute/1,attribute/2,function/1,function/2,rule/1,rule/2,
+         attribute/1,attribute/2,function/1,function/2,
          guard/1,guard/2,exprs/1,exprs/2,exprs/3,expr/1,expr/2,expr/3,expr/4]).
 
 -import(lists, [append/1,foldr/3,mapfoldl/3,reverse/1,reverse/2]).
@@ -46,6 +46,23 @@
 
 -record(options, {hook, encoding, opts}).
 
+%-define(DEBUG, true).
+
+-ifdef(DEBUG).
+-define(TEST(T),
+        %% Assumes that erl_anno has been compiled with DEBUG=true.
+        %% erl_pp does not use the annoations, but test it anyway.
+        %% Note: hooks are not handled.
+        _ = try
+                erl_parse:map_anno(fun(A) when is_list(A) -> A end, T)
+            catch
+                _:_ ->
+                    erlang:error(badarg, [T])
+            end).
+-else.
+-define(TEST(T), ok).
+-endif.
+
 %%%
 %%% Exported functions
 %%%
@@ -61,6 +78,7 @@ form(Thing) ->
       Options :: options()).
 
 form(Thing, Options) ->
+    ?TEST(Thing),
     State = state(Options),
     frmt(lform(Thing, options(Options), State), State).
 
@@ -75,6 +93,7 @@ attribute(Thing) ->
       Options :: options()).
 
 attribute(Thing, Options) ->
+    ?TEST(Thing),
     State = state(Options),
     frmt(lattribute(Thing, options(Options), State), State).
 
@@ -89,14 +108,9 @@ function(F) ->
       Options :: options()).
 
 function(F, Options) ->
+    ?TEST(F),
     frmt(lfunction(F, options(Options)), state(Options)).
 
-rule(R) ->
-    rule(R, none).
-
-rule(R, Options) ->
-    frmt(lrule(R, options(Options)), state(Options)).
-
 -spec(guard(Guard) -> io_lib:chars() when
       Guard :: [erl_parse:abstract_expr()]).
 
@@ -108,6 +122,7 @@ guard(Gs) ->
       Options :: options()).
 
 guard(Gs, Options) ->
+    ?TEST(Gs),
     frmt(lguard(Gs, options(Options)), state(Options)).
 
 -spec(exprs(Expressions) -> io_lib:chars() when
@@ -129,12 +144,14 @@ exprs(Es, Options) ->
       Options :: options()).
 
 exprs(Es, I, Options) ->
+    ?TEST(Es),
     frmt({seq,[],[],[$,],lexprs(Es, options(Options))}, I, state(Options)).
 
 -spec(expr(Expression) -> io_lib:chars() when
       Expression :: erl_parse:abstract_expr()).
 
 expr(E) ->
+    ?TEST(E),
     frmt(lexpr(E, 0, options(none)), state(none)).
 
 -spec(expr(Expression, Options) -> io_lib:chars() when
@@ -142,6 +159,7 @@ expr(E) ->
       Options :: options()).
 
 expr(E, Options) ->
+    ?TEST(E),
     frmt(lexpr(E, 0, options(Options)), state(Options)).
 
 -spec(expr(Expression, Indent, Options) -> io_lib:chars() when
@@ -150,6 +168,7 @@ expr(E, Options) ->
       Options :: options()).
 
 expr(E, I, Options) ->
+    ?TEST(E),
     frmt(lexpr(E, 0, options(Options)), I, state(Options)).
 
 -spec(expr(Expression, Indent, Precedence, Options) -> io_lib:chars() when
@@ -159,6 +178,7 @@ expr(E, I, Options) ->
       Options :: options()).
 
 expr(E, I, P, Options) ->
+    ?TEST(E),
     frmt(lexpr(E, P, options(Options)), I, state(Options)).
 
 %%%
@@ -199,8 +219,6 @@ lform({attribute,Line,Name,Arg}, Opts, State) ->
     lattribute({attribute,Line,Name,Arg}, Opts, State);
 lform({function,Line,Name,Arity,Clauses}, Opts, _State) ->
     lfunction({function,Line,Name,Arity,Clauses}, Opts);
-lform({rule,Line,Name,Arity,Clauses}, Opts, _State) ->
-    lrule({rule,Line,Name,Arity,Clauses}, Opts);
 %% These are specials to make it easier for the compiler.
 lform({error,E}, _Opts, _State) ->
     leaf(format("~p\n", [{error,E}]));
@@ -221,28 +239,37 @@ lattribute({attribute,_Line,Name,Arg}, Opts, State) ->
     [lattribute(Name, Arg, Opts, State),leaf(".\n")].
 
 lattribute(module, {M,Vs}, _Opts, _State) ->
-    attr("module",[{var,0,pname(M)},
-                   foldr(fun(V, C) -> {cons,0,{var,0,V},C}
-                         end, {nil,0}, Vs)]);
+    A = a0(),
+    attr("module",[{var,A,pname(M)},
+                   foldr(fun(V, C) -> {cons,A,{var,A,V},C}
+                         end, {nil,A}, Vs)]);
 lattribute(module, M, _Opts, _State) ->
-    attr("module", [{var,0,pname(M)}]);
+    attr("module", [{var,a0(),pname(M)}]);
 lattribute(export, Falist, _Opts, _State) ->
-    call({var,0,"-export"}, [falist(Falist)], 0, options(none));
+    call({var,a0(),"-export"}, [falist(Falist)], 0, options(none));
 lattribute(import, Name, _Opts, _State) when is_list(Name) ->
-    attr("import", [{var,0,pname(Name)}]);
+    attr("import", [{var,a0(),pname(Name)}]);
 lattribute(import, {From,Falist}, _Opts, _State) ->
-    attr("import",[{var,0,pname(From)},falist(Falist)]);
+    attr("import",[{var,a0(),pname(From)},falist(Falist)]);
+lattribute(optional_callbacks, Falist, Opts, _State) ->
+    ArgL = try falist(Falist)
+           catch _:_ -> abstract(Falist, Opts)
+           end,
+    call({var,a0(),"-optional_callbacks"}, [ArgL], 0, options(none));
 lattribute(file, {Name,Line}, _Opts, State) ->
-    attr("file", [{var,0,(State#pp.string_fun)(Name)},{integer,0,Line}]);
+    attr("file", [{var,a0(),(State#pp.string_fun)(Name)},{integer,a0(),Line}]);
 lattribute(record, {Name,Is}, Opts, _State) ->
     Nl = leaf(format("-record(~w,", [Name])),
     [{first,Nl,record_fields(Is, Opts)},$)];
-lattribute(Name, Arg, #options{encoding = Encoding}, _State) ->
-    attr(write(Name), [erl_parse:abstract(Arg, [{encoding,Encoding}])]).
+lattribute(Name, Arg, Options, _State) ->
+    attr(write(Name), [abstract(Arg, Options)]).
+
+abstract(Arg, #options{encoding = Encoding}) ->
+    erl_parse:abstract(Arg, [{encoding,Encoding}]).
 
 typeattr(Tag, {TypeName,Type,Args}, _Opts) ->
     {first,leaf("-"++atom_to_list(Tag)++" "),
-     typed(call({atom,0,TypeName}, Args, 0, options(none)), Type)}.
+     typed(call({atom,a0(),TypeName}, Args, 0, options(none)), Type)}.
 
 ltype({ann_type,_Line,[V,T]}) ->
     typed(lexpr(V, options(none)), T);
@@ -277,6 +304,9 @@ ltype({type,_,'fun',[{type,_,any},_]}=FunType) ->
 ltype({type,_Line,'fun',[{type,_,product,_},_]}=FunType) ->
     [fun_type(['fun',$(], FunType),$)];
 ltype({type,Line,T,Ts}) ->
+    %% Compatibility. Before 18.0.
+    simple_type({atom,Line,T}, Ts);
+ltype({user_type,Line,T,Ts}) ->
     simple_type({atom,Line,T}, Ts);
 ltype({remote_type,Line,[M,F,Ts]}) ->
     simple_type({remote,Line,M,F}, Ts);
@@ -299,7 +329,7 @@ map_type(Fs) ->
 map_pair_types(Fs) ->
     tuple_type(Fs, fun map_pair_type/1).
 
-map_pair_type({type,_Line,map_field_assoc,Ktype,Vtype}) ->
+map_pair_type({type,_Line,map_field_assoc,[Ktype,Vtype]}) ->
     map_assoc_typed(ltype(Ktype), Vtype).
 
 map_assoc_typed(B, {type,_,union,Ts}) ->
@@ -381,7 +411,7 @@ ltypes(Ts, F) ->
     [F(T) || T <- Ts].
 
 attr(Name, Args) ->
-    call({var,0,format("-~s", [Name])}, Args, 0, options(none)).
+    call({var,a0(),format("-~s", [Name])}, Args, 0, options(none)).
 
 pname(['' | As]) ->
     [$. | pname(As)];
@@ -393,9 +423,10 @@ pname(A) when is_atom(A) ->
     write(A).
 
 falist([]) ->
-    {nil,0};
+    {nil,a0()};
 falist([{Name,Arity}|Falist]) ->
-    {cons,0,{var,0,format("~w/~w", [Name,Arity])},falist(Falist)}.
+    A = a0(),
+    {cons,A,{var,A,format("~w/~w", [Name,Arity])},falist(Falist)}.
 
 lfunction({function,_Line,Name,_Arity,Cs}, Opts) ->
     Cll = nl_clauses(fun (C, H) -> func_clause(Name, C, H) end, $;, Opts, Cs),
@@ -407,19 +438,6 @@ func_clause(Name, {clause,Line,Head,Guard,Body}, Opts) ->
     Bl = body(Body, Opts),
     {step,Gl,Bl}.
 
-lrule({rule,_Line,Name,_Arity,Cs}, Opts) ->
-    Cll = nl_clauses(fun (C, H) -> rule_clause(Name, C, H) end, $;, Opts, Cs),
-    [Cll,leaf(".\n")].
-
-rule_clause(Name, {clause,Line,Head,Guard,Body}, Opts) ->
-    Hl = call({atom,Line,Name}, Head, 0, Opts),
-    Gl = guard_when(Hl, Guard, Opts, leaf(" :-")),
-    Bl = rule_body(Body, Opts),
-    {step,Gl,Bl}.
-
-rule_body(Es, Opts) ->
-    lc_quals(Es, Opts).
-
 guard_when(Before, Guard, Opts) ->
     guard_when(Before, Guard, Opts, ' ->').
 
@@ -1121,6 +1139,9 @@ write_char(C, PP) ->
 %% Utilities
 %%
 
+a0() ->
+    erl_anno:new(0).
+
 chars_size([C | Es]) when is_integer(C) ->
     1 + chars_size(Es);
 chars_size([E | Es]) ->
diff --git a/lib/stdlib/src/erl_scan.erl b/lib/stdlib/src/erl_scan.erl
index 6fd6bb888b..5e7cc5f6d6 100644
--- a/lib/stdlib/src/erl_scan.erl
+++ b/lib/stdlib/src/erl_scan.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -55,6 +55,15 @@
          token_info/1,token_info/2,
          attributes_info/1,attributes_info/2,set_attribute/3]).
 
+-export([column/1,end_location/1,line/1,location/1,text/1,
+         category/1,symbol/1]).
+
+-deprecated([{attributes_info, 1, next_major_release},
+             {attributes_info, 2, next_major_release},
+             {set_attribute, 3, next_major_release},
+             {token_info, 1, next_major_release},
+             {token_info, 2, next_major_release}]).
+
 %%% Private
 -export([continuation_location/1]).
 
@@ -78,9 +87,9 @@
 -define(SETATTRFUN(F), is_function(F, 1)).
 
 -type category() :: atom().
--type column() :: pos_integer().
--type line() :: integer().
--type location() :: line() | {line(),column()}.
+-type column() :: pos_integer().                % Deprecated
+-type line() :: integer().                      % Deprecated
+-type location() :: line() | {line(),column()}. % Deprecated
 -type resword_fun() :: fun((atom()) -> boolean()).
 -type option() :: 'return' | 'return_white_spaces' | 'return_comments'
                 | 'text' | {'reserved_word_fun', resword_fun()}.
@@ -197,6 +206,56 @@ continuation_location({erl_scan_continuation,_,no_col,_,Line,_,_,_}) ->
 continuation_location({erl_scan_continuation,_,Col,_,Line,_,_,_}) ->
     {Line,Col}.
 
+-spec column(Token) -> erl_anno:column() | 'undefined' when
+      Token :: token().
+
+column(Token) ->
+    erl_anno:column(element(2, Token)).
+
+-spec end_location(Token) -> erl_anno:location() | 'undefined' when
+      Token :: token().
+
+end_location(Token) ->
+    erl_anno:end_location(element(2, Token)).
+
+-spec line(Token) -> erl_anno:line() when
+      Token :: token().
+
+line(Token) ->
+    erl_anno:line(element(2, Token)).
+
+-spec location(Token) -> erl_anno:location() when
+      Token :: token().
+
+location(Token) ->
+    erl_anno:location(element(2, Token)).
+
+-spec text(Token) -> erl_anno:text() | 'undefined' when
+      Token :: token().
+
+text(Token) ->
+    erl_anno:text(element(2, Token)).
+
+-spec category(Token) -> category() when
+      Token :: token().
+
+category({Category,_Anno}) ->
+    Category;
+category({Category,_Anno,_Symbol}) ->
+    Category;
+category(T) ->
+    erlang:error(badarg, [T]).
+
+-spec symbol(Token) -> symbol() when
+      Token :: token().
+
+symbol({Category,_Anno}) ->
+    Category;
+symbol({_Category,_Anno,Symbol}) ->
+    Symbol;
+symbol(T) ->
+    erlang:error(badarg, [T]).
+
 -type attribute_item() :: 'column' | 'length' | 'line'
                         | 'location' | 'text'.
 -type info_location() :: location() | term().
@@ -276,7 +335,17 @@ attributes_info({Line,Column}, column=Item) when ?ALINE(Line),
 attributes_info(Line, column) when ?ALINE(Line) ->
     undefined;
 attributes_info(Attrs, column=Item) ->
-    attr_info(Attrs, Item);
+    case attr_info(Attrs, Item) of
+        undefined ->
+            case erl_anno:column(Attrs) of
+                undefined ->
+                    undefined;
+                Column ->
+                    {Item,Column}
+            end;
+        T ->
+            T
+    end;
 attributes_info(Attrs, length=Item) ->
     case attributes_info(Attrs, text) of
         undefined ->
@@ -290,14 +359,26 @@ attributes_info({Line,Column}, line=Item) when ?ALINE(Line),
                                                ?COLUMN(Column) ->
     {Item,Line};
 attributes_info(Attrs, line=Item) ->
-    attr_info(Attrs, Item);
+    case attr_info(Attrs, Item) of
+        undefined ->
+            case attr_info(Attrs, location) of
+                {location,{Line,_Column}} ->
+                    {Item,Line};
+                {location,Line} ->
+                    {Item,Line};
+                undefined ->
+                    undefined
+            end;
+        T ->
+            T
+    end;
 attributes_info({Line,Column}=Location, location=Item) when ?ALINE(Line),
                                                             ?COLUMN(Column) ->
     {Item,Location};
 attributes_info(Line, location=Item) when ?ALINE(Line) ->
     {Item,Line};
 attributes_info(Attrs, location=Item) ->
-    {line,Line} = attributes_info(Attrs, line), % assume line is present
+    {line,Line} = attributes_info(Attrs, line),
     case attributes_info(Attrs, column) of
         undefined ->
             %% If set_attribute() has assigned a term such as {17,42}
@@ -419,12 +500,28 @@ set_attr(line, {Line,Column}, Fun) when ?ALINE(Line), ?COLUMN(Column) ->
             [{line,Ln},{column,Column}]
     end;
 set_attr(line=Tag, Attrs, Fun) when is_list(Attrs) ->
-    {line,Line} = lists:keyfind(Tag, 1, Attrs),
-    case lists:keyreplace(Tag, 1, Attrs, {line,Fun(Line)}) of
-        [{line,Ln}] when ?ALINE(Ln) ->
-            Ln;
-        As ->
-            As
+    case lists:keyfind(Tag, 1, Attrs) of
+        {line,Line} ->
+            case lists:keyreplace(Tag, 1, Attrs, {line,Fun(Line)}) of
+                [{line,Ln}] when ?ALINE(Ln) ->
+                    Ln;
+                As ->
+                    As
+            end;
+        false ->
+            {location, Location} = lists:keyfind(location, 1, Attrs),
+            Ln = case Location of
+                     {Line,Column} when ?ALINE(Line), ?COLUMN(Column) ->
+                         {Fun(Line),Column};
+                     _ ->
+                         Fun(Location)
+                 end,
+            case lists:keyreplace(location, 1, Attrs, {location,Ln}) of
+                [{location,Ln}] when ?ALINE(Ln) ->
+                    Ln;
+                As ->
+                    As
+            end
     end;
 set_attr(T1, T2, T3) ->
     erlang:error(badarg, [T1,T2,T3]).
@@ -599,9 +696,6 @@ scan1("|"=Cs, _St, Line, Col, Toks) ->
 %% :=
 scan1(":="++Cs, St, Line, Col, Toks) ->
     tok2(Cs, St, Line, Col, Toks, ":=", ':=', 2);
-%% :-
-scan1(":-"++Cs, St, Line, Col, Toks) ->
-    tok2(Cs, St, Line, Col, Toks, ":-", ':-', 2);
 %% :: for typed records
 scan1("::"++Cs, St, Line, Col, Toks) ->
     tok2(Cs, St, Line, Col, Toks, "::", '::', 2);
@@ -711,17 +805,17 @@ scan_name(Cs, Ncs) ->
 -define(STR(St, S), if St#erl_scan.text -> S; true -> [] end).
 
 scan_dot([$%|_]=Cs, St, Line, Col, Toks, Ncs) ->
-    Attrs = attributes(Line, Col, St, Ncs),
-    {ok,[{dot,Attrs}|Toks],Cs,Line,incr_column(Col, 1)};
+    Anno = anno(Line, Col, St, Ncs),
+    {ok,[{dot,Anno}|Toks],Cs,Line,incr_column(Col, 1)};
 scan_dot([$\n=C|Cs], St, Line, Col, Toks, Ncs) ->
-    Attrs = attributes(Line, Col, St, ?STR(St, Ncs++[C])),
-    {ok,[{dot,Attrs}|Toks],Cs,Line+1,new_column(Col, 1)};
+    Anno = anno(Line, Col, St, ?STR(St, Ncs++[C])),
+    {ok,[{dot,Anno}|Toks],Cs,Line+1,new_column(Col, 1)};
 scan_dot([C|Cs], St, Line, Col, Toks, Ncs) when ?WHITE_SPACE(C) ->
-    Attrs = attributes(Line, Col, St, ?STR(St, Ncs++[C])),
-    {ok,[{dot,Attrs}|Toks],Cs,Line,incr_column(Col, 2)};
+    Anno = anno(Line, Col, St, ?STR(St, Ncs++[C])),
+    {ok,[{dot,Anno}|Toks],Cs,Line,incr_column(Col, 2)};
 scan_dot(eof=Cs, St, Line, Col, Toks, Ncs) ->
-    Attrs = attributes(Line, Col, St, Ncs),
-    {ok,[{dot,Attrs}|Toks],Cs,Line,incr_column(Col, 1)};
+    Anno = anno(Line, Col, St, Ncs),
+    {ok,[{dot,Anno}|Toks],Cs,Line,incr_column(Col, 1)};
 scan_dot(Cs, St, Line, Col, Toks, Ncs) ->
     tok2(Cs, St, Line, Col, Toks, Ncs, '.', 1).
 
@@ -776,12 +870,12 @@ scan_nl_tabs(Cs, St, Line, Col, Toks, N) ->
 %% stop anyway, nothing is gained by not collecting all white spaces.
 scan_nl_white_space([$\n|Cs], #erl_scan{text = false}=St, Line, no_col=Col,
                     Toks0, Ncs) ->
-    Toks = [{white_space,Line,lists:reverse(Ncs)}|Toks0],
+    Toks = [{white_space,anno(Line),lists:reverse(Ncs)}|Toks0],
     scan_newline(Cs, St, Line+1, Col, Toks);
 scan_nl_white_space([$\n|Cs], St, Line, Col, Toks, Ncs0) ->
     Ncs = lists:reverse(Ncs0),
-    Attrs = attributes(Line, Col, St, Ncs),
-    Token = {white_space,Attrs,Ncs},
+    Anno = anno(Line, Col, St, Ncs),
+    Token = {white_space,Anno,Ncs},
     scan_newline(Cs, St, Line+1, new_column(Col, length(Ncs)), [Token|Toks]);
 scan_nl_white_space([C|Cs], St, Line, Col, Toks, Ncs) when ?WHITE_SPACE(C) ->
     scan_nl_white_space(Cs, St, Line, Col, Toks, [C|Ncs]);
@@ -789,19 +883,20 @@ scan_nl_white_space([]=Cs, _St, Line, Col, Toks, Ncs) ->
     {more,{Cs,Col,Toks,Line,Ncs,fun scan_nl_white_space/6}};
 scan_nl_white_space(Cs, #erl_scan{text = false}=St, Line, no_col=Col,
                     Toks, Ncs) ->
-    scan1(Cs, St, Line+1, Col, [{white_space,Line,lists:reverse(Ncs)}|Toks]);
+    Anno = anno(Line),
+    scan1(Cs, St, Line+1, Col, [{white_space,Anno,lists:reverse(Ncs)}|Toks]);
 scan_nl_white_space(Cs, St, Line, Col, Toks, Ncs0) ->
     Ncs = lists:reverse(Ncs0),
-    Attrs = attributes(Line, Col, St, Ncs),
-    Token = {white_space,Attrs,Ncs},
+    Anno = anno(Line, Col, St, Ncs),
+    Token = {white_space,Anno,Ncs},
     scan1(Cs, St, Line+1, new_column(Col, length(Ncs)), [Token|Toks]).
 
 newline_end(Cs, #erl_scan{text = false}=St, Line, no_col=Col,
             Toks, _N, Ncs) ->
-    scan1(Cs, St, Line+1, Col, [{white_space,Line,Ncs}|Toks]);
+    scan1(Cs, St, Line+1, Col, [{white_space,anno(Line),Ncs}|Toks]);
 newline_end(Cs, St, Line, Col, Toks, N, Ncs) ->
-    Attrs = attributes(Line, Col, St, Ncs),
-    scan1(Cs, St, Line+1, new_column(Col, N), [{white_space,Attrs,Ncs}|Toks]).
+    Anno = anno(Line, Col, St, Ncs),
+    scan1(Cs, St, Line+1, new_column(Col, N), [{white_space,Anno,Ncs}|Toks]).
 
 scan_spcs([$\s|Cs], St, Line, Col, Toks, N) when N < 16 ->
     scan_spcs(Cs, St, Line, Col, Toks, N+1);
@@ -850,20 +945,20 @@ scan_char([$\\|Cs]=Cs0, St, Line, Col, Toks) ->
         {eof,Ncol} ->
             scan_error(char, Line, Col, Line, Ncol, eof);
         {nl,Val,Str,Ncs,Ncol} ->
-            Attrs = attributes(Line, Col, St, ?STR(St, "$\\"++Str)), %"
-            Ntoks = [{char,Attrs,Val}|Toks],
+            Anno = anno(Line, Col, St, ?STR(St, "$\\"++Str)), %"
+            Ntoks = [{char,Anno,Val}|Toks],
             scan1(Ncs, St, Line+1, Ncol, Ntoks);
         {Val,Str,Ncs,Ncol} ->
-            Attrs = attributes(Line, Col, St, ?STR(St, "$\\"++Str)), %"
-            Ntoks = [{char,Attrs,Val}|Toks],
+            Anno = anno(Line, Col, St, ?STR(St, "$\\"++Str)), %"
+            Ntoks = [{char,Anno,Val}|Toks],
             scan1(Ncs, St, Line, Ncol, Ntoks)
     end;
 scan_char([$\n=C|Cs], St, Line, Col, Toks) ->
-    Attrs = attributes(Line, Col, St, ?STR(St, [$$,C])),
-    scan1(Cs, St, Line+1, new_column(Col, 1), [{char,Attrs,C}|Toks]);
+    Anno = anno(Line, Col, St, ?STR(St, [$$,C])),
+    scan1(Cs, St, Line+1, new_column(Col, 1), [{char,Anno,C}|Toks]);
 scan_char([C|Cs], St, Line, Col, Toks) when ?UNICODE(C) ->
-    Attrs = attributes(Line, Col, St, ?STR(St, [$$,C])),
-    scan1(Cs, St, Line, incr_column(Col, 2), [{char,Attrs,C}|Toks]);
+    Anno = anno(Line, Col, St, ?STR(St, [$$,C])),
+    scan1(Cs, St, Line, incr_column(Col, 2), [{char,Anno,C}|Toks]);
 scan_char([C|_Cs], _St, Line, Col, _Toks) when ?CHAR(C) ->
     scan_error({illegal,character}, Line, Col, Line, incr_column(Col, 1), eof);
 scan_char([], _St, Line, Col, Toks) ->
@@ -882,8 +977,8 @@ scan_string(Cs, St, Line, Col, Toks, {Wcs,Str,Line0,Col0}) ->
             Estr = string:substr(Nwcs, 1, 16), % Expanded escape chars.
             scan_error({string,$\",Estr}, Line0, Col0, Nline, Ncol, Ncs); %"
         {Ncs,Nline,Ncol,Nstr,Nwcs} ->
-            Attrs = attributes(Line0, Col0, St, Nstr),
-            scan1(Ncs, St, Nline, Ncol, [{string,Attrs,Nwcs}|Toks])
+            Anno = anno(Line0, Col0, St, Nstr),
+            scan1(Ncs, St, Nline, Ncol, [{string,Anno,Nwcs}|Toks])
     end.
 
 scan_qatom(Cs, St, Line, Col, Toks, {Wcs,Str,Line0,Col0}) ->
@@ -899,8 +994,8 @@ scan_qatom(Cs, St, Line, Col, Toks, {Wcs,Str,Line0,Col0}) ->
         {Ncs,Nline,Ncol,Nstr,Nwcs} ->
             case catch list_to_atom(Nwcs) of
                 A when is_atom(A) ->
-                    Attrs = attributes(Line0, Col0, St, Nstr),
-                    scan1(Ncs, St, Nline, Ncol, [{atom,Attrs,A}|Toks]);
+                    Anno = anno(Line0, Col0, St, Nstr),
+                    scan1(Ncs, St, Nline, Ncol, [{atom,Anno,A}|Toks]);
                 _ ->
                     scan_error({illegal,atom}, Line0, Col0, Nline, Ncol, Ncs)
             end
@@ -1176,28 +1271,28 @@ scan_comment(Cs, St, Line, Col, Toks, Ncs0) ->
     tok3(Cs, St, Line, Col, Toks, comment, Ncs, Ncs).
 
 tok2(Cs, #erl_scan{text = false}=St, Line, no_col=Col, Toks, _Wcs, P) ->
-    scan1(Cs, St, Line, Col, [{P,Line}|Toks]);
+    scan1(Cs, St, Line, Col, [{P,anno(Line)}|Toks]);
 tok2(Cs, St, Line, Col, Toks, Wcs, P) ->
-    Attrs = attributes(Line, Col, St, Wcs),
-    scan1(Cs, St, Line, incr_column(Col, length(Wcs)), [{P,Attrs}|Toks]).
+    Anno = anno(Line, Col, St, Wcs),
+    scan1(Cs, St, Line, incr_column(Col, length(Wcs)), [{P,Anno}|Toks]).
 
 tok2(Cs, #erl_scan{text = false}=St, Line, no_col=Col, Toks, _Wcs, P, _N) ->
-    scan1(Cs, St, Line, Col, [{P,Line}|Toks]);
+    scan1(Cs, St, Line, Col, [{P,anno(Line)}|Toks]);
 tok2(Cs, St, Line, Col, Toks, Wcs, P, N) ->
-    Attrs = attributes(Line, Col, St, Wcs),
-    scan1(Cs, St, Line, incr_column(Col, N), [{P,Attrs}|Toks]).
+    Anno = anno(Line, Col, St, Wcs),
+    scan1(Cs, St, Line, incr_column(Col, N), [{P,Anno}|Toks]).
 
 tok3(Cs, #erl_scan{text = false}=St, Line, no_col=Col, Toks, Item, _S, Sym) ->
-    scan1(Cs, St, Line, Col, [{Item,Line,Sym}|Toks]);
+    scan1(Cs, St, Line, Col, [{Item,anno(Line),Sym}|Toks]);
 tok3(Cs, St, Line, Col, Toks, Item, String, Sym) ->
-    Token = {Item,attributes(Line, Col, St, String),Sym},
+    Token = {Item,anno(Line, Col, St, String),Sym},
     scan1(Cs, St, Line, incr_column(Col, length(String)), [Token|Toks]).
 
 tok3(Cs, #erl_scan{text = false}=St, Line, no_col=Col, Toks, Item,
      _String, Sym, _Length) ->
-    scan1(Cs, St, Line, Col, [{Item,Line,Sym}|Toks]);
+    scan1(Cs, St, Line, Col, [{Item,anno(Line),Sym}|Toks]);
 tok3(Cs, St, Line, Col, Toks, Item, String, Sym, Length) ->
-    Token = {Item,attributes(Line, Col, St, String),Sym},
+    Token = {Item,anno(Line, Col, St, String),Sym},
     scan1(Cs, St, Line, incr_column(Col, Length), [Token|Toks]).
 
 scan_error(Error, Line, Col, EndLine, EndCol, Rest) ->
@@ -1208,23 +1303,28 @@ scan_error(Error, Line, Col, EndLine, EndCol, Rest) ->
 scan_error(Error, ErrorLoc, EndLoc, Rest) ->
     {{error,{ErrorLoc,?MODULE,Error},EndLoc},Rest}.
 
--compile({inline,[attributes/4]}).
+-compile({inline,[anno/4]}).
 
-attributes(Line, no_col, #erl_scan{text = false}, _String) ->
-    Line;
-attributes(Line, no_col, #erl_scan{text = true}, String) ->
-    [{line,Line},{text,String}];
-attributes(Line, Col, #erl_scan{text = false}, _String) ->
-    {Line,Col};
-attributes(Line, Col, #erl_scan{text = true}, String) ->
-    [{line,Line},{column,Col},{text,String}].
+anno(Line, no_col, #erl_scan{text = false}, _String) ->
+    anno(Line);
+anno(Line, no_col, #erl_scan{text = true}, String) ->
+    Anno = anno(Line),
+    erl_anno:set_text(String, Anno);
+anno(Line, Col, #erl_scan{text = false}, _String) ->
+    anno({Line, Col});
+anno(Line, Col, #erl_scan{text = true}, String) ->
+    Anno = anno({Line, Col}),
+    erl_anno:set_text(String, Anno).
 
 location(Line, no_col) ->
     Line;
 location(Line, Col) when is_integer(Col) ->
     {Line,Col}.
 
--compile({inline,[incr_column/2,new_column/2]}).
+-compile({inline,[anno/1,incr_column/2,new_column/2]}).
+
+anno(Location) ->
+    erl_anno:new(Location).
 
 incr_column(no_col=Col, _N) ->
     Col;
diff --git a/lib/stdlib/src/erl_tar.erl b/lib/stdlib/src/erl_tar.erl
index caa3276d09..72bd54fa29 100644
--- a/lib/stdlib/src/erl_tar.erl
+++ b/lib/stdlib/src/erl_tar.erl
@@ -300,7 +300,7 @@ format_error(Term) ->
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 add1(TarFile, Bin, NameInArchive, Opts) when is_binary(Bin) ->
-    Now = calendar:now_to_local_time(now()),
+    Now = calendar:now_to_local_time(erlang:timestamp()),
     Info = #file_info{size = byte_size(Bin),
 		      type = regular,
 		      access = read_write,
diff --git a/lib/stdlib/src/escript.erl b/lib/stdlib/src/escript.erl
index 6bd0eb8a22..f0827009a5 100644
--- a/lib/stdlib/src/escript.erl
+++ b/lib/stdlib/src/escript.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2007-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2007-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -620,12 +620,13 @@ parse_source(S, File, Fd, StartLine, HeaderSz, CheckOnly) ->
                     {ok, {attribute,_, module, M} = Form} ->
                         epp_parse_file(Epp, S2#state{module = M}, [Form, FileForm]);
                     {ok, _} ->
-                        ModForm = {attribute,1,module, Module},
+                        ModForm = {attribute,a1(),module, Module},
                         epp_parse_file2(Epp, S2, [ModForm, FileForm], OptModRes);
                     {error, _} ->
                         epp_parse_file2(Epp, S2, [FileForm], OptModRes);
-                    {eof, _LastLine} = Eof ->
-                        S#state{forms_or_bin = [FileForm, Eof]}
+                    {eof, LastLine} ->
+                        Anno = anno(LastLine),
+                        S#state{forms_or_bin = [FileForm, {eof, Anno}]}
                 end,
             ok = epp:close(Epp),
             ok = file:close(Fd),
@@ -644,7 +645,7 @@ check_source(S, CheckOnly) ->
 	    %% Optionally add export of main/1
 	    Forms2 =
 		case ExpMain of
-		    false -> [{attribute,0,export, [{main,1}]} | Forms];
+		    false -> [{attribute, a0(), export, [{main,1}]} | Forms];
 		    true  -> Forms
 		end,
 	    Forms3 = [FileForm2, ModForm2 | Forms2],
@@ -663,7 +664,8 @@ check_source(S, CheckOnly) ->
     end.
 
 pre_def_macros(File) ->
-    {MegaSecs, Secs, MicroSecs} = erlang:now(),
+    {MegaSecs, Secs, MicroSecs} = erlang:timestamp(),
+    Unique = erlang:unique_integer([positive]),
     Replace = fun(Char) ->
 		      case Char of
 			  $\. -> $\_;
@@ -675,8 +677,9 @@ pre_def_macros(File) ->
 	CleanBase ++ "__" ++
         "escript__" ++
         integer_to_list(MegaSecs) ++ "__" ++
-        integer_to_list(Secs) ++ "__" ++
-        integer_to_list(MicroSecs),
+	integer_to_list(Secs) ++ "__" ++
+	integer_to_list(MicroSecs) ++ "__" ++
+	integer_to_list(Unique),
     Module = list_to_atom(ModuleStr),
     PreDefMacros = [{'MODULE', Module, redefine},
                     {'MODULE_STRING', ModuleStr, redefine}],
@@ -720,8 +723,9 @@ epp_parse_file2(Epp, S, Forms, Parsed) ->
             io:format("~ts:~w: ~ts\n",
                       [S#state.file,Ln,Mod:format_error(Args)]),
             epp_parse_file(Epp, S#state{n_errors = S#state.n_errors + 1}, [Form | Forms]);
-        {eof, _LastLine} = Eof ->
-            S#state{forms_or_bin = lists:reverse([Eof | Forms])}
+        {eof, LastLine} ->
+            Anno = anno(LastLine),
+            S#state{forms_or_bin = lists:reverse([{eof, Anno} | Forms])}
     end.
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -776,7 +780,8 @@ interpret(Forms, HasRecs,  File, Args) ->
 	end,
     Dict = parse_to_dict(Forms2),
     ArgsA = erl_parse:abstract(Args, 0),
-    Call = {call,0,{atom,0,main},[ArgsA]},
+    Anno = a0(),
+    Call = {call,Anno,{atom,Anno,main},[ArgsA]},
     try
         _ = erl_eval:expr(Call,
                           erl_eval:new_bindings(),
@@ -888,6 +893,15 @@ enc() ->
         Enc -> [Enc]
     end.
 
+a0() ->
+    anno(0).
+
+a1() ->
+    anno(1).
+
+anno(L) ->
+    erl_anno:new(L).
+
 fatal(Str) ->
     throw(Str).
 
diff --git a/lib/stdlib/src/ets.erl b/lib/stdlib/src/ets.erl
index 93c4f59896..0e2d59d0c3 100644
--- a/lib/stdlib/src/ets.erl
+++ b/lib/stdlib/src/ets.erl
@@ -71,7 +71,8 @@
          rename/2, safe_fixtable/2, select/1, select/2, select/3,
          select_count/2, select_delete/2, select_reverse/1,
          select_reverse/2, select_reverse/3, setopts/2, slot/2,
-         update_counter/3, update_element/3]).
+         take/2,
+         update_counter/3, update_counter/4, update_element/3]).
 
 -spec all() -> [Tab] when
       Tab :: tab().
@@ -133,7 +134,9 @@ give_away(_, _, _) ->
                  | {owner, pid()}
                  | {protection, access()}
                  | {size, non_neg_integer()}
-                 | {type, type()}.
+                 | {type, type()}
+		 | {write_concurrency, boolean()}
+		 | {read_concurrency, boolean()}.
 
 info(_) ->
     erlang:nif_error(undef).
@@ -142,7 +145,8 @@ info(_) ->
       Tab :: tab(),
       Item :: compressed | fixed | heir | keypos | memory
             | name | named_table | node | owner | protection
-            | safe_fixed | size | stats | type,
+            | safe_fixed | size | stats | type
+	    | write_concurrency | read_concurrency,
       Value :: term().
 
 info(_, _) ->
@@ -400,6 +404,14 @@ setopts(_, _) ->
 slot(_, _) ->
     erlang:nif_error(undef).
 
+-spec take(Tab, Key) -> [Object] when
+      Tab :: tab(),
+      Key :: term(),
+      Object :: tuple().
+
+take(_, _) ->
+    erlang:nif_error(undef).
+
 -spec update_counter(Tab, Key, UpdateOp) -> Result when
       Tab :: tab(),
       Key :: term(),
@@ -427,6 +439,38 @@ slot(_, _) ->
 update_counter(_, _, _) ->
     erlang:nif_error(undef).
 
+-spec update_counter(Tab, Key, UpdateOp, Default) -> Result when
+                        Tab :: tab(),
+                        Key :: term(),
+                        UpdateOp :: {Pos, Incr}
+                                  | {Pos, Incr, Threshold, SetValue},
+                        Pos :: integer(),
+                        Incr :: integer(),
+                        Threshold :: integer(),
+                        SetValue :: integer(),
+                        Result :: integer(),
+                        Default :: tuple();
+                    (Tab, Key, [UpdateOp], Default) -> [Result] when
+                        Tab :: tab(),
+                        Key :: term(),
+                        UpdateOp :: {Pos, Incr}
+                                  | {Pos, Incr, Threshold, SetValue},
+                        Pos :: integer(),
+                        Incr :: integer(),
+                        Threshold :: integer(),
+                        SetValue :: integer(),
+                        Result :: integer(),
+                        Default :: tuple();
+                    (Tab, Key, Incr, Default) -> Result when
+                        Tab :: tab(),
+                        Key :: term(),
+                        Incr :: integer(),
+                        Result :: integer(),
+                        Default :: tuple().
+
+update_counter(_, _, _, _) ->
+    erlang:nif_error(undef).
+
 -spec update_element(Tab, Key, ElementSpec :: {Pos, Value}) -> boolean() when
       Tab :: tab(),
       Key :: term(),
@@ -695,7 +739,8 @@ do_filter(Tab, Key, F, A, Ack) ->
 -record(filetab_options,
 	{
 	  object_count = false :: boolean(),
-	  md5sum       = false :: boolean()     
+	  md5sum       = false :: boolean(),
+	  sync         = false :: boolean()
 	 }).
 
 -spec tab2file(Tab, Filename) -> 'ok' | {'error', Reason} when
@@ -710,7 +755,7 @@ tab2file(Tab, File) ->
       Tab :: tab(),
       Filename :: file:name(),
       Options :: [Option],
-      Option :: {'extended_info', [ExtInfo]},
+      Option :: {'extended_info', [ExtInfo]} | {'sync', boolean()},
       ExtInfo :: 'md5sum' | 'object_count',
       Reason :: term().
 
@@ -791,6 +836,15 @@ tab2file(Tab, File, Options) ->
 		List ->
 		    LogFun(NewState1,[['$end_of_table',List]])
 	    end,
+	    case FtOptions#filetab_options.sync of
+	        true ->
+		    case disk_log:sync(Name) of
+		        ok -> ok;
+			{error, Reason2} -> throw(Reason2)
+		    end;
+                false ->
+		    ok
+            end,
 	    disk_log:close(Name)
 	catch
 	    throw:TReason ->
@@ -843,23 +897,24 @@ md5terms(State, [H|T]) ->
     {FinState, [B|TL]}.
 
 parse_ft_options(Options) when is_list(Options) ->
-    {Opt,Rest} = case (catch lists:keytake(extended_info,1,Options)) of
-		     false -> 
-			 {[],Options};
-		     {value,{extended_info,L},R} when is_list(L) ->
-			 {L,R}
-		 end,
-    case Rest of
-	[] ->
-	    parse_ft_info_options(#filetab_options{}, Opt);
-	Other ->
-	    throw({unknown_option, Other})
-    end;
-parse_ft_options(Malformed) ->
+    {ok, parse_ft_options(Options, #filetab_options{}, false)}.
+
+parse_ft_options([], FtOpt, _) ->
+    FtOpt;
+parse_ft_options([{sync,true} | Rest], FtOpt, EI) ->
+    parse_ft_options(Rest, FtOpt#filetab_options{sync = true}, EI);
+parse_ft_options([{sync,false} | Rest], FtOpt, EI) ->
+    parse_ft_options(Rest, FtOpt, EI);
+parse_ft_options([{extended_info,L} | Rest], FtOpt0, false) ->
+    FtOpt1 = parse_ft_info_options(FtOpt0, L),
+    parse_ft_options(Rest, FtOpt1, true);
+parse_ft_options([Other | _], _, _) ->
+    throw({unknown_option, Other});
+parse_ft_options(Malformed, _, _) ->
     throw({malformed_option, Malformed}).
 
 parse_ft_info_options(FtOpt,[]) ->
-    {ok,FtOpt};
+    FtOpt;
 parse_ft_info_options(FtOpt,[object_count | T]) ->
     parse_ft_info_options(FtOpt#filetab_options{object_count = true}, T);
 parse_ft_info_options(FtOpt,[md5sum | T]) ->
diff --git a/lib/stdlib/src/file_sorter.erl b/lib/stdlib/src/file_sorter.erl
index 687d72b4bd..61b489513a 100644
--- a/lib/stdlib/src/file_sorter.erl
+++ b/lib/stdlib/src/file_sorter.erl
@@ -1425,8 +1425,8 @@ tmp_prefix1(Dir, TmpDirOpt) ->
     U = "_",
     Node = node(),
     Pid = os:getpid(),
-    {MSecs,Secs,MySecs} = now(),
-    F = lists:concat(["fs_",Node,U,Pid,U,MSecs,U,Secs,U,MySecs,"."]),
+    Unique = erlang:unique_integer([positive]),
+    F = lists:concat(["fs_",Node,U,Pid,U,Unique,"."]),
     TmpDir = case TmpDirOpt of
                  default ->
                      Dir;
diff --git a/lib/stdlib/src/filename.erl b/lib/stdlib/src/filename.erl
index e6bde5673c..68bd4f71cc 100644
--- a/lib/stdlib/src/filename.erl
+++ b/lib/stdlib/src/filename.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1997-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2014. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -444,6 +444,8 @@ join1([], RelativeName, [$:|Rest], win32) ->
     join1(RelativeName, [], [$:|Rest], win32);
 join1([], RelativeName, [$/|Result], OsType) ->
     join1(RelativeName, [], [$/|Result], OsType);
+join1([], RelativeName, [$., $/|Result], OsType) ->
+    join1(RelativeName, [], [$/|Result], OsType);
 join1([], RelativeName, Result, OsType) ->
     join1(RelativeName, [], [$/|Result], OsType);
 join1([[_|_]=List|Rest], RelativeName, Result, OsType) ->
@@ -470,6 +472,8 @@ join1b(<<>>, RelativeName, [$:|Rest], win32) ->
     join1b(RelativeName, <<>>, [$:|Rest], win32);
 join1b(<<>>, RelativeName, [$/|Result], OsType) ->
     join1b(RelativeName, <<>>, [$/|Result], OsType);
+join1b(<<>>, RelativeName, [$., $/|Result], OsType) ->
+    join1b(RelativeName, <<>>, [$/|Result], OsType);
 join1b(<<>>, RelativeName, Result, OsType) ->
     join1b(RelativeName, <<>>, [$/|Result], OsType);
 join1b(<<Char,Rest/binary>>, RelativeName, Result, OsType) when is_integer(Char) ->
@@ -644,7 +648,7 @@ split(Name0) ->
 unix_splitb(Name) ->
     L = binary:split(Name,[<<"/">>],[global]),
     LL = case L of
-	     [<<>>|Rest] ->
+	     [<<>>|Rest] when Rest =/= [] ->
 		 [<<"/">>|Rest];
 	     _ ->
 		 L
diff --git a/lib/stdlib/src/gb_sets.erl b/lib/stdlib/src/gb_sets.erl
index 0a26d0182d..d3fbd542f7 100644
--- a/lib/stdlib/src/gb_sets.erl
+++ b/lib/stdlib/src/gb_sets.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2001-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -137,6 +137,10 @@
 %%   approach is that it does not require the complete list of all
 %%   elements to be built in memory at one time.
 %%
+%% - iterator_from(X, S): returns an iterator that can be used for
+%%   traversing the elements of set S greater than or equal to X;
+%%   see `next'.
+%%
 %% - next(T): returns {X, T1} where X is the smallest element referred
 %%   to by the iterator T, and T1 is the new iterator to be used for
 %%   traversing the remaining elements, or the atom `none' if no
@@ -157,8 +161,8 @@
 	 insert/2, add/2, delete/2, delete_any/2, balance/1, union/2,
 	 union/1, intersection/2, intersection/1, is_disjoint/2, difference/2,
 	 is_subset/2, to_list/1, from_list/1, from_ordset/1, smallest/1,
-	 largest/1, take_smallest/1, take_largest/1, iterator/1, next/1,
-	 filter/2, fold/3, is_set/1]).
+	 largest/1, take_smallest/1, take_largest/1, iterator/1,
+         iterator_from/2, next/1, filter/2, fold/3, is_set/1]).
 
 %% `sets' compatibility aliases:
 
@@ -207,21 +211,19 @@
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
-%%% gb_sets:set() in OTP 17 only.
-
 -spec empty() -> Set when
-      Set :: gb_sets:set().
+      Set :: set().
 
 empty() ->
     {0, nil}.
 
 -spec new() -> Set when
-      Set :: gb_sets:set().
+      Set :: set().
 
 new() -> empty().
 
 -spec is_empty(Set) -> boolean() when
-      Set :: gb_sets:set().
+      Set :: set().
 
 is_empty({0, nil}) ->
     true;
@@ -229,7 +231,7 @@ is_empty(_) ->
     false.
 
 -spec size(Set) -> non_neg_integer() when
-      Set :: gb_sets:set().
+      Set :: set().
 
 size({Size, _}) ->
     Size.
@@ -502,6 +504,22 @@ iterator({_, L, _} = T, As) ->
 iterator(nil, As) ->
     As.
 
+-spec iterator_from(Element, Set) -> Iter when
+      Set :: set(Element),
+      Iter :: iter(Element).
+
+iterator_from(S, {_, T}) ->
+    iterator_from(S, T, []).
+
+iterator_from(S, {K, _, T}, As) when K < S ->
+    iterator_from(S, T, As);
+iterator_from(_, {_, nil, _} = T, As) ->
+    [T | As];
+iterator_from(S, {_, L, _} = T, As) ->
+    iterator_from(S, L, [T | As]);
+iterator_from(_, nil, As) ->
+    As.
+
 -spec next(Iter1) -> {Element, Iter2} | 'none' when
       Iter1 :: iter(Element),
       Iter2 :: iter(Element).
diff --git a/lib/stdlib/src/gb_trees.erl b/lib/stdlib/src/gb_trees.erl
index 7069b61873..259e8f718b 100644
--- a/lib/stdlib/src/gb_trees.erl
+++ b/lib/stdlib/src/gb_trees.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2001-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -102,6 +102,10 @@
 %%   approach is that it does not require the complete list of all
 %%   elements to be built in memory at one time.
 %%
+%% - iterator_from(K, T): returns an iterator that can be used for
+%%   traversing the entries of tree T with key greater than or
+%%   equal to K; see `next'.
+%%
 %% - next(S): returns {X, V, S1} where X is the smallest key referred to
 %%   by the iterator S, and S1 is the new iterator to be used for
 %%   traversing the remaining entries, or the atom `none' if no entries
@@ -117,7 +121,7 @@
 	 update/3, enter/3, delete/2, delete_any/2, balance/1,
 	 is_defined/2, keys/1, values/1, to_list/1, from_orddict/1,
 	 smallest/1, largest/1, take_smallest/1, take_largest/1,
-	 iterator/1, next/1, map/2]).
+	 iterator/1, iterator_from/2, next/1, map/2]).
 
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -529,6 +533,29 @@ iterator({_, _, L, _} = T, As) ->
 iterator(nil, As) ->
     As.
 
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+-spec iterator_from(Key, Tree) -> Iter when
+      Tree :: tree(Key, Value),
+      Iter :: iter(Key, Value).
+
+iterator_from(S, {_, T}) ->
+    iterator_1_from(S, T).
+
+iterator_1_from(S, T) ->
+    iterator_from(S, T, []).
+
+iterator_from(S, {K, _, _, T}, As) when K < S ->
+    iterator_from(S, T, As);
+iterator_from(_, {_, _, nil, _} = T, As) ->
+    [T | As];
+iterator_from(S, {_, _, L, _} = T, As) ->
+    iterator_from(S, L, [T | As]);
+iterator_from(_, nil, As) ->
+    As.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
 -spec next(Iter1) -> 'none' | {Key, Value, Iter2} when
       Iter1 :: iter(Key, Value),
       Iter2 :: iter(Key, Value).
diff --git a/lib/stdlib/src/gen.erl b/lib/stdlib/src/gen.erl
index 63116fa16e..6d7ca3d75c 100644
--- a/lib/stdlib/src/gen.erl
+++ b/lib/stdlib/src/gen.erl
@@ -26,7 +26,7 @@
 %%% The standard behaviour should export init_it/6.
 %%%-----------------------------------------------------------------
 -export([start/5, start/6, debug_options/1,
-	 call/3, call/4, reply/2]).
+	 call/3, call/4, reply/2, stop/1, stop/3]).
 
 -export([init_it/6, init_it/7]).
 
@@ -145,56 +145,10 @@ init_it2(GenMod, Starter, Parent, Name, Mod, Args, Options) ->
 call(Process, Label, Request) -> 
     call(Process, Label, Request, ?default_timeout).
 
-%% Local or remote by pid
-call(Pid, Label, Request, Timeout) 
-  when is_pid(Pid), Timeout =:= infinity;
-       is_pid(Pid), is_integer(Timeout), Timeout >= 0 ->
-    do_call(Pid, Label, Request, Timeout);
-%% Local by name
-call(Name, Label, Request, Timeout) 
-  when is_atom(Name), Timeout =:= infinity;
-       is_atom(Name), is_integer(Timeout), Timeout >= 0 ->
-    case whereis(Name) of
-	Pid when is_pid(Pid) ->
-	    do_call(Pid, Label, Request, Timeout);
-	undefined ->
-	    exit(noproc)
-    end;
-%% Global by name
 call(Process, Label, Request, Timeout)
-  when ((tuple_size(Process) == 2 andalso element(1, Process) == global)
-	orelse
-	  (tuple_size(Process) == 3 andalso element(1, Process) == via))
-       andalso
-       (Timeout =:= infinity orelse (is_integer(Timeout) andalso Timeout >= 0)) ->
-    case where(Process) of
-	Pid when is_pid(Pid) ->
-	    Node = node(Pid),
- 	    try do_call(Pid, Label, Request, Timeout)
- 	    catch
- 		exit:{nodedown, Node} ->
- 		    %% A nodedown not yet detected by global,
- 		    %% pretend that it was.
- 		    exit(noproc)
-	    end;
-	undefined ->
-	    exit(noproc)
-    end;
-%% Local by name in disguise
-call({Name, Node}, Label, Request, Timeout)
-  when Node =:= node(), Timeout =:= infinity;
-       Node =:= node(), is_integer(Timeout), Timeout >= 0 ->
-    call(Name, Label, Request, Timeout);
-%% Remote by name
-call({_Name, Node}=Process, Label, Request, Timeout)
-  when is_atom(Node), Timeout =:= infinity;
-       is_atom(Node), is_integer(Timeout), Timeout >= 0 ->
-    if
- 	node() =:= nonode@nohost ->
- 	    exit({nodedown, Node});
- 	true ->
- 	    do_call(Process, Label, Request, Timeout)
-    end.
+  when Timeout =:= infinity; is_integer(Timeout), Timeout >= 0 ->
+    Fun = fun(Pid) -> do_call(Pid, Label, Request, Timeout) end,
+    do_for_proc(Process, Fun).
 
 do_call(Process, Label, Request, Timeout) ->
     try erlang:monitor(process, Process) of
@@ -276,6 +230,65 @@ reply({To, Tag}, Reply) ->
     Msg = {Tag, Reply},
     try To ! Msg catch _:_ -> Msg end.
 
+%%-----------------------------------------------------------------
+%% Syncronously stop a generic process
+%%-----------------------------------------------------------------
+stop(Process) ->
+    stop(Process, normal, infinity).
+
+stop(Process, Reason, Timeout)
+  when Timeout =:= infinity; is_integer(Timeout), Timeout >= 0 ->
+    Fun = fun(Pid) -> proc_lib:stop(Pid, Reason, Timeout) end,
+    do_for_proc(Process, Fun).
+
+%%-----------------------------------------------------------------
+%% Map different specifications of a process to either Pid or
+%% {Name,Node}. Execute the given Fun with the process as only
+%% argument.
+%% -----------------------------------------------------------------
+
+%% Local or remote by pid
+do_for_proc(Pid, Fun) when is_pid(Pid) ->
+    Fun(Pid);
+%% Local by name
+do_for_proc(Name, Fun) when is_atom(Name) ->
+    case whereis(Name) of
+	Pid when is_pid(Pid) ->
+	    Fun(Pid);
+	undefined ->
+	    exit(noproc)
+    end;
+%% Global by name
+do_for_proc(Process, Fun)
+  when ((tuple_size(Process) == 2 andalso element(1, Process) == global)
+	orelse
+	  (tuple_size(Process) == 3 andalso element(1, Process) == via)) ->
+    case where(Process) of
+	Pid when is_pid(Pid) ->
+	    Node = node(Pid),
+	    try Fun(Pid)
+	    catch
+		exit:{nodedown, Node} ->
+		    %% A nodedown not yet detected by global,
+		    %% pretend that it was.
+		    exit(noproc)
+	    end;
+	undefined ->
+	    exit(noproc)
+    end;
+%% Local by name in disguise
+do_for_proc({Name, Node}, Fun) when Node =:= node() ->
+    do_for_proc(Name, Fun);
+%% Remote by name
+do_for_proc({_Name, Node} = Process, Fun) when is_atom(Node) ->
+    if
+	node() =:= nonode@nohost ->
+	    exit({nodedown, Node});
+	true ->
+	    Fun(Process)
+    end.
+
+
 %%%-----------------------------------------------------------------
 %%%  Misc. functions.
 %%%-----------------------------------------------------------------
diff --git a/lib/stdlib/src/gen_event.erl b/lib/stdlib/src/gen_event.erl
index 469acdc37c..5a1fff3a9c 100644
--- a/lib/stdlib/src/gen_event.erl
+++ b/lib/stdlib/src/gen_event.erl
@@ -31,8 +31,8 @@
 %%% Modified by Martin - uses proc_lib, sys and gen!
 
 
--export([start/0, start/1, start_link/0, start_link/1, stop/1, notify/2, 
-	 sync_notify/2,
+-export([start/0, start/1, start_link/0, start_link/1, stop/1, stop/3,
+	 notify/2, sync_notify/2,
 	 add_handler/3, add_sup_handler/3, delete_handler/3, swap_handler/3,
 	 swap_sup_handler/3, which_handlers/1, call/3, call/4, wake_hib/4]).
 
@@ -99,6 +99,14 @@
 -callback code_change(OldVsn :: (term() | {down, term()}),
                       State :: term(), Extra :: term()) ->
     {ok, NewState :: term()}.
+-callback format_status(Opt, StatusData) -> Status when
+      Opt :: 'normal' | 'terminate',
+      StatusData :: [PDict | State],
+      PDict :: [{Key :: term(), Value :: term()}],
+      State :: term(),
+      Status :: term().
+
+-optional_callbacks([format_status/2]).
 
 %%---------------------------------------------------------------------------
 
@@ -183,7 +191,11 @@ swap_sup_handler(M, {H1, A1}, {H2, A2}) ->
 which_handlers(M) -> rpc(M, which_handlers).
 
 -spec stop(emgr_ref()) -> 'ok'.
-stop(M) -> rpc(M, stop).
+stop(M) ->
+    gen:stop(M).
+
+stop(M, Reason, Timeout) ->
+    gen:stop(M, Reason, Timeout).
 
 rpc(M, Cmd) -> 
     {ok, Reply} = gen:call(M, self(), Cmd, infinity),
diff --git a/lib/stdlib/src/gen_fsm.erl b/lib/stdlib/src/gen_fsm.erl
index 5afe3e8b09..89825a6a57 100644
--- a/lib/stdlib/src/gen_fsm.erl
+++ b/lib/stdlib/src/gen_fsm.erl
@@ -106,6 +106,7 @@
 
 -export([start/3, start/4,
 	 start_link/3, start_link/4,
+	 stop/1, stop/3,
 	 send_event/2, sync_send_event/2, sync_send_event/3,
 	 send_all_state_event/2,
 	 sync_send_all_state_event/2, sync_send_all_state_event/3,
@@ -160,6 +161,14 @@
 -callback code_change(OldVsn :: term() | {down, term()}, StateName :: atom(),
 		      StateData :: term(), Extra :: term()) ->
     {ok, NextStateName :: atom(), NewStateData :: term()}.
+-callback format_status(Opt, StatusData) -> Status when
+      Opt :: 'normal' | 'terminate',
+      StatusData :: [PDict | State],
+      PDict :: [{Key :: term(), Value :: term()}],
+      State :: term(),
+      Status :: term().
+
+-optional_callbacks([format_status/2]).
 
 %%% ---------------------------------------------------
 %%% Starts a generic state machine.
@@ -189,6 +198,11 @@ start_link(Mod, Args, Options) ->
 start_link(Name, Mod, Args, Options) ->
     gen:start(?MODULE, link, Name, Mod, Args, Options).
 
+stop(Name) ->
+    gen:stop(Name).
+
+stop(Name, Reason, Timeout) ->
+    gen:stop(Name, Reason, Timeout).
 
 send_event({global, Name}, Event) ->
     catch global:send(Name, {'$gen_event', Event}),
diff --git a/lib/stdlib/src/gen_server.erl b/lib/stdlib/src/gen_server.erl
index 18ef4a2507..b29e40e5f7 100644
--- a/lib/stdlib/src/gen_server.erl
+++ b/lib/stdlib/src/gen_server.erl
@@ -88,6 +88,7 @@
 %% API
 -export([start/3, start/4,
 	 start_link/3, start_link/4,
+	 stop/1, stop/3,
 	 call/2, call/3,
 	 cast/2, reply/2,
 	 abcast/2, abcast/3,
@@ -137,6 +138,15 @@
 -callback code_change(OldVsn :: (term() | {down, term()}), State :: term(),
                       Extra :: term()) ->
     {ok, NewState :: term()} | {error, Reason :: term()}.
+-callback format_status(Opt, StatusData) -> Status when
+      Opt :: 'normal' | 'terminate',
+      StatusData :: [PDict | State],
+      PDict :: [{Key :: term(), Value :: term()}],
+      State :: term(),
+      Status :: term().
+
+-optional_callbacks([format_status/2]).
+
 
 %%%  -----------------------------------------------------------------
 %%% Starts a generic server.
@@ -168,6 +178,17 @@ start_link(Name, Mod, Args, Options) ->
 
 
 %% -----------------------------------------------------------------
+%% Stop a generic server and wait for it to terminate.
+%% If the server is located at another node, that node will
+%% be monitored.
+%% -----------------------------------------------------------------
+stop(Name) ->
+    gen:stop(Name).
+
+stop(Name, Reason, Timeout) ->
+    gen:stop(Name, Reason, Timeout).
+
+%% -----------------------------------------------------------------
 %% Make a call to a generic server.
 %% If the server is located at another node, that node will
 %% be monitored.
@@ -849,22 +870,10 @@ opt(_, []) ->
 
 debug_options(Name, Opts) ->
     case opt(debug, Opts) of
-	{ok, Options} -> dbg_options(Name, Options);
-	_ -> dbg_options(Name, [])
+	{ok, Options} -> dbg_opts(Name, Options);
+	_ -> []
     end.
 
-dbg_options(Name, []) ->
-    Opts = 
-	case init:get_argument(generic_debug) of
-	    error ->
-		[];
-	    _ ->
-		[log, statistics]
-	end,
-    dbg_opts(Name, Opts);
-dbg_options(Name, Opts) ->
-    dbg_opts(Name, Opts).
-
 dbg_opts(Name, Opts) ->
     case catch sys:debug_options(Opts) of
 	{'EXIT',_} ->
diff --git a/lib/stdlib/src/io.erl b/lib/stdlib/src/io.erl
index b9ace2f442..0b59546dc4 100644
--- a/lib/stdlib/src/io.erl
+++ b/lib/stdlib/src/io.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -45,7 +45,7 @@
 %% ErrorDescription is whatever the I/O-server sends.
 -type server_no_data() :: {'error', ErrorDescription :: term()} | 'eof'.
 
--type location() :: erl_scan:location().
+-type location() :: erl_anno:location().
 
 %%-------------------------------------------------------------------------
 
diff --git a/lib/stdlib/src/io_lib.erl b/lib/stdlib/src/io_lib.erl
index adc9a0cf5f..3378d668a5 100644
--- a/lib/stdlib/src/io_lib.erl
+++ b/lib/stdlib/src/io_lib.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2014. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -60,6 +60,7 @@
 -module(io_lib).
 
 -export([fwrite/2,fread/2,fread/3,format/2]).
+-export([scan_format/2,unscan_format/1,build_text/1]).
 -export([print/1,print/4,indentation/2]).
 
 -export([write/1,write/2,write/3,nl/0,format_prompt/1,format_prompt/2]).
@@ -83,7 +84,7 @@
          deep_unicode_char_list/1]).
 
 -export_type([chars/0, latin1_string/0, continuation/0,
-              fread_error/0, fread_item/0]).
+              fread_error/0, fread_item/0, format_spec/0]).
 
 %%----------------------------------------------------------------------
 
@@ -108,6 +109,18 @@
 
 -type fread_item() :: string() | atom() | integer() | float().
 
+-type format_spec() ::
+        #{
+           control_char => char(),
+           args         => [any()],
+           width        => 'none' | integer(),
+           adjust       => 'left' | 'right',
+           precision    => 'none' | integer(),
+           pad_char     => char(),
+           encoding     => 'unicode' | 'latin1',
+           strings      => boolean()
+         }.
+
 %%----------------------------------------------------------------------
 
 %% Interface calls to sub-modules.
@@ -156,6 +169,31 @@ format(Format, Args) ->
 	    Other
     end.
 
+-spec scan_format(Format, Data) -> FormatList when
+      Format :: io:format(),
+      Data :: [term()],
+      FormatList :: [char() | format_spec()].
+
+scan_format(Format, Args) ->
+    try io_lib_format:scan(Format, Args)
+    catch
+        _:_ -> erlang:error(badarg, [Format, Args])
+    end.
+
+-spec unscan_format(FormatList) -> {Format, Data} when
+      FormatList :: [char() | format_spec()],
+      Format :: io:format(),
+      Data :: [term()].
+
+unscan_format(FormatList) ->
+    io_lib_format:unscan(FormatList).
+
+-spec build_text(FormatList) -> chars() when
+      FormatList :: [char() | format_spec()].
+
+build_text(FormatList) ->
+    io_lib_format:build(FormatList).
+
 -spec print(Term) -> chars() when
       Term :: term().
 
@@ -249,6 +287,8 @@ write([H|T], D) ->
     end;
 write(F, _D) when is_function(F) ->
     erlang:fun_to_list(F);
+write(Term, D) when is_map(Term) ->
+    write_map(Term, D);
 write(T, D) when is_tuple(T) ->
     if
 	D =:= 1 -> "{...}";
@@ -257,9 +297,7 @@ write(T, D) when is_tuple(T) ->
 	     [write(element(1, T), D-1)|
               write_tail(tl(tuple_to_list(T)), D-1, $,)],
 	     $}]
-    end;
-%write(Term, D)  when is_map(Term) -> write_map(Term, D);
-write(Term, D) -> write_map(Term, D).
+    end.
 
 %% write_tail(List, Depth, CharacterBeforeDots)
 %%  Test the terminating case first as this looks better with depth.
diff --git a/lib/stdlib/src/io_lib_format.erl b/lib/stdlib/src/io_lib_format.erl
index 89ae6fb187..015afb317a 100644
--- a/lib/stdlib/src/io_lib_format.erl
+++ b/lib/stdlib/src/io_lib_format.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2014. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -20,10 +20,9 @@
 
 %% Formatting functions of io library.
 
--export([fwrite/2,fwrite_g/1,indentation/2]).
+-export([fwrite/2,fwrite_g/1,indentation/2,scan/2,unscan/1,build/1]).
 
-%% fwrite(Format, ArgList) -> string().
-%%  Format the arguments in ArgList after string Format. Just generate
+%%  Format the arguments in Args after string Format. Just generate
 %%  an error if there is an error in the arguments.
 %%
 %%  To do the printing command correctly we need to calculate the
@@ -37,15 +36,84 @@
 %%  and it also splits the handling of the control characters into two
 %%  parts.
 
-fwrite(Format, Args) when is_atom(Format) ->
-    fwrite(atom_to_list(Format), Args);
-fwrite(Format, Args) when is_binary(Format) ->
-    fwrite(binary_to_list(Format), Args);
+-spec fwrite(Format, Data) -> FormatList when
+      Format :: io:format(),
+      Data :: [term()],
+      FormatList :: [char() | io_lib:format_spec()].
+
 fwrite(Format, Args) ->
-    Cs = collect(Format, Args),
+    build(scan(Format, Args)).
+
+%% Build the output text for a pre-parsed format list.
+
+-spec build(FormatList) -> io_lib:chars() when
+      FormatList :: [char() | io_lib:format_spec()].
+
+build(Cs) ->
     Pc = pcount(Cs),
     build(Cs, Pc, 0).
 
+%% Parse all control sequences in the format string.
+
+-spec scan(Format, Data) -> FormatList when
+      Format :: io:format(),
+      Data :: [term()],
+      FormatList :: [char() | io_lib:format_spec()].
+
+scan(Format, Args) when is_atom(Format) ->
+    scan(atom_to_list(Format), Args);
+scan(Format, Args) when is_binary(Format) ->
+    scan(binary_to_list(Format), Args);
+scan(Format, Args) ->
+    collect(Format, Args).
+
+%% Revert a pre-parsed format list to a plain character list and a
+%% list of arguments.
+
+-spec unscan(FormatList) -> {Format, Data} when
+      FormatList :: [char() | io_lib:format_spec()],
+      Format :: io:format(),
+      Data :: [term()].
+
+unscan(Cs) ->
+    {print(Cs), args(Cs)}.
+
+args([#{args := As} | Cs]) ->
+    As ++ args(Cs);
+args([_C | Cs]) ->
+    args(Cs);
+args([]) ->
+    [].
+
+print([#{control_char := C, width := F, adjust := Ad, precision := P,
+         pad_char := Pad, encoding := Encoding, strings := Strings} | Cs]) ->
+    print(C, F, Ad, P, Pad, Encoding, Strings) ++ print(Cs);
+print([C | Cs]) ->
+    [C | print(Cs)];
+print([]) ->
+    [].
+
+print(C, F, Ad, P, Pad, Encoding, Strings) ->
+    [$~] ++ print_field_width(F, Ad) ++ print_precision(P) ++
+        print_pad_char(Pad) ++ print_encoding(Encoding) ++
+        print_strings(Strings) ++ [C].
+
+print_field_width(none, _Ad) -> "";
+print_field_width(F, left) -> integer_to_list(-F);
+print_field_width(F, right) -> integer_to_list(F).
+
+print_precision(none) -> "";
+print_precision(P) -> [$. | integer_to_list(P)].
+
+print_pad_char($\s) -> ""; % default, no need to make explicit
+print_pad_char(Pad) -> [$., Pad].
+
+print_encoding(unicode) -> "t";
+print_encoding(latin1) -> "".
+
+print_strings(false) -> "l";
+print_strings(true) -> "".
+
 collect([$~|Fmt0], Args0) ->
     {C,Fmt1,Args1} = collect_cseq(Fmt0, Args0),
     [C|collect(Fmt1, Args1)];
@@ -60,7 +128,10 @@ collect_cseq(Fmt0, Args0) ->
     {Encoding,Fmt4,Args4} = encoding(Fmt3, Args3),
     {Strings,Fmt5,Args5} = strings(Fmt4, Args4),
     {C,As,Fmt6,Args6} = collect_cc(Fmt5, Args5),
-    {{C,As,F,Ad,P,Pad,Encoding,Strings},Fmt6,Args6}.
+    FormatSpec = #{control_char => C, args => As, width => F, adjust => Ad,
+                   precision => P, pad_char => Pad, encoding => Encoding,
+                   strings => Strings},
+    {FormatSpec,Fmt6,Args6}.
 
 encoding([$t|Fmt],Args) ->
     true = hd(Fmt) =/= $l,
@@ -136,17 +207,19 @@ collect_cc([$i|Fmt], [A|Args]) -> {$i,[A],Fmt,Args}.
 
 pcount(Cs) -> pcount(Cs, 0).
 
-pcount([{$p,_As,_F,_Ad,_P,_Pad,_Enc,_Str}|Cs], Acc) -> pcount(Cs, Acc+1);
-pcount([{$P,_As,_F,_Ad,_P,_Pad,_Enc,_Str}|Cs], Acc) -> pcount(Cs, Acc+1);
+pcount([#{control_char := $p}|Cs], Acc) -> pcount(Cs, Acc+1);
+pcount([#{control_char := $P}|Cs], Acc) -> pcount(Cs, Acc+1);
 pcount([_|Cs], Acc) -> pcount(Cs, Acc);
 pcount([], Acc) -> Acc.
 
-%% build([Control], Pc, Indentation) -> string().
+%% build([Control], Pc, Indentation) -> io_lib:chars().
 %%  Interpret the control structures. Count the number of print
 %%  remaining and only calculate indentation when necessary. Must also
 %%  be smart when calculating indentation for characters in format.
 
-build([{C,As,F,Ad,P,Pad,Enc,Str}|Cs], Pc0, I) ->
+build([#{control_char := C, args := As, width := F, adjust := Ad,
+         precision := P, pad_char := Pad, encoding := Enc,
+         strings := Str} | Cs], Pc0, I) ->
     S = control(C, As, F, Ad, P, Pad, Enc, Str, I),
     Pc1 = decr_pc(C, Pc0),
     if
@@ -162,10 +235,14 @@ decr_pc($p, Pc) -> Pc - 1;
 decr_pc($P, Pc) -> Pc - 1;
 decr_pc(_, Pc) -> Pc.
 
-%% indentation(String, Indentation) -> Indentation.
+
 %%  Calculate the indentation of the end of a string given its start
 %%  indentation. We assume tabs at 8 cols.
 
+-spec indentation(String, StartIndent) -> integer() when
+      String :: io_lib:chars(),
+      StartIndent :: integer().
+
 indentation([$\n|Cs], _I) -> indentation(Cs, 0);
 indentation([$\t|Cs], I) -> indentation(Cs, ((I + 8) div 8) * 8);
 indentation([C|Cs], I) when is_integer(C) ->
@@ -366,7 +443,6 @@ float_data([D|Cs], Ds) when D >= $0, D =< $9 ->
 float_data([_|Cs], Ds) ->
     float_data(Cs, Ds).
 
-%% fwrite_g(Float)
 %%  Writes the shortest, correctly rounded string that converts
 %%  to Float when read back with list_to_float/1.
 %%
@@ -374,6 +450,8 @@ float_data([_|Cs], Ds) ->
 %%  in Proceedings of the SIGPLAN '96 Conference on Programming
 %%  Language Design and Implementation.
 
+-spec fwrite_g(float()) -> string().
+
 fwrite_g(0.0) ->
     "0.0";
 fwrite_g(Float) when is_float(Float) ->
@@ -642,7 +720,7 @@ prefixed_integer(Int, F, Adj, Base, Pad, Prefix, Lowercase)
 	    term([Prefix|S], F, Adj, none, Pad)
     end.
 
-%% char(Char, Field, Adjust, Precision, PadChar) -> string().
+%% char(Char, Field, Adjust, Precision, PadChar) -> chars().
 
 char(C, none, _Adj, none, _Pad) -> [C];
 char(C, F, _Adj, none, _Pad) -> chars(C, F);
diff --git a/lib/stdlib/src/maps.erl b/lib/stdlib/src/maps.erl
index ba4d6a5c87..533ff08726 100644
--- a/lib/stdlib/src/maps.erl
+++ b/lib/stdlib/src/maps.erl
@@ -19,31 +19,16 @@
 
 -module(maps).
 
--export([
-	fold/3,
-	map/2,
-	size/1,
-    without/2,
-    with/2,
-    get/3
-    ]).
+-export([get/3,filter/2,fold/3, map/2,
+         size/1,
+         without/2, with/2]).
 
 
 %%% BIFs
--export([
-	get/2,
-	find/2,
-	from_list/1,
-	is_key/2,
-	keys/1,
-	merge/2,
-	new/0,
-	put/3,
-	remove/2,
-	to_list/1,
-	update/3,
-	values/1
-    ]).
+-export([get/2, find/2, from_list/1,
+         is_key/2, keys/1, merge/2,
+         new/0, put/3, remove/2,
+         to_list/1, update/3, values/1]).
 
 -spec get(Key,Map) -> Value when
     Key :: term(),
@@ -150,13 +135,28 @@ values(_) -> erlang:nif_error(undef).
         Value :: term(),
         Default :: term().
 
-get(Key, Map, Default) ->
+get(Key,Map,Default) when is_map(Map) ->
     case maps:find(Key, Map) of
         {ok, Value} ->
             Value;
         error ->
             Default
-    end.
+    end;
+get(Key,Map,Default) ->
+    erlang:error({badmap,Map},[Key,Map,Default]).
+
+
+-spec filter(Pred,Map1) -> Map2 when
+      Pred :: fun((Key, Value) -> boolean()),
+      Key  :: term(),
+      Value :: term(),
+      Map1 :: map(),
+      Map2 :: map().
+
+filter(Pred,Map) when is_function(Pred,2), is_map(Map) ->
+    maps:from_list([{K,V}||{K,V}<-maps:to_list(Map),Pred(K,V)]);
+filter(Pred,Map) ->
+    erlang:error(error_type(Map),[Pred,Map]).
 
 
 -spec fold(Fun,Init,Map) -> Acc when
@@ -169,8 +169,10 @@ get(Key, Map, Default) ->
     K :: term(),
     V :: term().
 
-fold(Fun, Init, Map) when is_function(Fun,3), is_map(Map) ->
-    lists:foldl(fun({K,V},A) -> Fun(K,V,A) end,Init,maps:to_list(Map)).
+fold(Fun,Init,Map) when is_function(Fun,3), is_map(Map) ->
+    lists:foldl(fun({K,V},A) -> Fun(K,V,A) end,Init,maps:to_list(Map));
+fold(Fun,Init,Map) ->
+    erlang:error(error_type(Map),[Fun,Init,Map]).
 
 -spec map(Fun,Map1) -> Map2 when
     Fun :: fun((K, V1) -> V2),
@@ -180,18 +182,19 @@ fold(Fun, Init, Map) when is_function(Fun,3), is_map(Map) ->
     V1 :: term(),
     V2 :: term().
 
-map(Fun, Map) when is_function(Fun, 2), is_map(Map) ->
-    maps:from_list(lists:map(fun
-		({K,V}) ->
-		    {K,Fun(K,V)}
-	    end,maps:to_list(Map))).
+map(Fun,Map) when is_function(Fun, 2), is_map(Map) ->
+    maps:from_list([{K,Fun(K,V)}||{K,V}<-maps:to_list(Map)]);
+map(Fun,Map) ->
+    erlang:error(error_type(Map),[Fun,Map]).
 
 
 -spec size(Map) -> non_neg_integer() when
     Map :: map().
 
 size(Map) when is_map(Map) ->
-    erlang:map_size(Map).
+    erlang:map_size(Map);
+size(Val) ->
+    erlang:error({badmap,Val},[Val]).
 
 
 -spec without(Ks,Map1) -> Map2 when
@@ -200,8 +203,10 @@ size(Map) when is_map(Map) ->
     Map2 :: map(),
     K :: term().
 
-without(Ks, M) when is_list(Ks), is_map(M) ->
-    maps:from_list([{K,V}||{K,V} <- maps:to_list(M), not lists:member(K, Ks)]).
+without(Ks,M) when is_list(Ks), is_map(M) ->
+    maps:from_list([{K,V}||{K,V} <- maps:to_list(M), not lists:member(K, Ks)]);
+without(Ks,M) ->
+    erlang:error(error_type(M),[Ks,M]).
 
 
 -spec with(Ks, Map1) -> Map2 when
@@ -210,5 +215,11 @@ without(Ks, M) when is_list(Ks), is_map(M) ->
     Map2 :: map(),
     K :: term().
 
-with(Ks, M) when is_list(Ks), is_map(M) ->
-    maps:from_list([{K,V}||{K,V} <- maps:to_list(M), lists:member(K, Ks)]).
+with(Ks,M) when is_list(Ks), is_map(M) ->
+    maps:from_list([{K,V}||{K,V} <- maps:to_list(M), lists:member(K, Ks)]);
+with(Ks,M) ->
+    erlang:error(error_type(M),[Ks,M]).
+
+
+error_type(M) when is_map(M) -> badarg;
+error_type(V) -> {badmap, V}.
diff --git a/lib/stdlib/src/math.erl b/lib/stdlib/src/math.erl
index 98a70b1644..43f736e54c 100644
--- a/lib/stdlib/src/math.erl
+++ b/lib/stdlib/src/math.erl
@@ -24,7 +24,7 @@
 
 -export([sin/1, cos/1, tan/1, asin/1, acos/1, atan/1, atan2/2, sinh/1,
          cosh/1, tanh/1, asinh/1, acosh/1, atanh/1, exp/1, log/1,
-         log10/1, pow/2, sqrt/1, erf/1, erfc/1]).
+         log2/1, log10/1, pow/2, sqrt/1, erf/1, erfc/1]).
 
 -spec acos(X) -> float() when
       X :: number().
@@ -92,6 +92,11 @@ exp(_) ->
 log(_) ->
     erlang:nif_error(undef).
 
+-spec log2(X) -> float() when
+      X :: number().
+log2(_) ->
+    erlang:nif_error(undef).
+
 -spec log10(X) -> float() when
       X :: number().
 log10(_) ->
diff --git a/lib/stdlib/src/ms_transform.erl b/lib/stdlib/src/ms_transform.erl
index 97564e2e44..6e3723bb98 100644
--- a/lib/stdlib/src/ms_transform.erl
+++ b/lib/stdlib/src/ms_transform.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2002-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2002-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -822,9 +822,10 @@ th(T,B,OB) when is_tuple(T) ->
 th(Nonstruct,B,_OB) ->
     {Nonstruct,B}.
 
-warn_var_clash(Line,Name,OuterBound) ->
+warn_var_clash(Anno,Name,OuterBound) ->
     case gb_sets:is_member(Name,OuterBound) of
 	true ->
+            Line = erl_anno:line(Anno),
 	    add_warning(Line,{?WARN_SHADOW_VAR,Name});
 	_ ->
 	    ok
@@ -1079,6 +1080,12 @@ normalise({cons,_,Head,Tail}) ->
     [normalise(Head)|normalise(Tail)];
 normalise({tuple,_,Args}) ->
     list_to_tuple(normalise_list(Args));
+normalise({map,_,Pairs0}) ->
+    Pairs1 = lists:map(fun ({map_field_exact,_,K,V}) ->
+                               {normalise(K),normalise(V)}
+                       end,
+                       Pairs0),
+    maps:from_list(Pairs1);
 %% Special case for unary +/-.
 normalise({op,_,'+',{char,_,I}}) -> I;
 normalise({op,_,'+',{integer,_,I}}) -> I;
diff --git a/lib/stdlib/src/orddict.erl b/lib/stdlib/src/orddict.erl
index c98d78b34d..cbdf25d757 100644
--- a/lib/stdlib/src/orddict.erl
+++ b/lib/stdlib/src/orddict.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1996-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -25,11 +25,13 @@
 -export([store/3,append/3,append_list/3,update/3,update/4,update_counter/3]).
 -export([fold/3,map/2,filter/2,merge/3]).
 
--export_type([orddict/0]).
+-export_type([orddict/0, orddict/2]).
 
 %%---------------------------------------------------------------------------
 
--type orddict() :: [{Key :: term(), Value :: term()}].
+-type orddict() :: orddict(_, _).
+
+-type orddict(Key, Value) :: [{Key, Value}].
 
 %%---------------------------------------------------------------------------
 
@@ -38,8 +40,7 @@
 new() -> [].
 
 -spec is_key(Key, Orddict) -> boolean() when
-      Key :: term(),
-      Orddict :: orddict().
+      Orddict :: orddict(Key, Value :: term()).
 
 is_key(Key, [{K,_}|_]) when Key < K -> false;
 is_key(Key, [{K,_}|Dict]) when Key > K -> is_key(Key, Dict);
@@ -47,14 +48,14 @@ is_key(_Key, [{_K,_Val}|_]) -> true;		%Key == K
 is_key(_, []) -> false.
 
 -spec to_list(Orddict) -> List when
-      Orddict :: orddict(),
-      List :: [{Key :: term(), Value :: term()}].
+      Orddict :: orddict(Key, Value),
+      List :: [{Key, Value}].
 
 to_list(Dict) -> Dict.
 
 -spec from_list(List) -> Orddict when
-      List :: [{Key :: term(), Value :: term()}],
-      Orddict :: orddict().
+      List :: [{Key, Value}],
+      Orddict :: orddict(Key, Value).
 
 from_list([]) -> [];
 from_list([{_,_}]=Pair) -> Pair;
@@ -73,17 +74,13 @@ is_empty([]) -> true;
 is_empty([_|_]) -> false.
 
 -spec fetch(Key, Orddict) -> Value when
-      Key :: term(),
-      Value :: term(),
-      Orddict :: orddict().
+      Orddict :: orddict(Key, Value).
 
 fetch(Key, [{K,_}|D]) when Key > K -> fetch(Key, D);
 fetch(Key, [{K,Value}|_]) when Key == K -> Value.
 
 -spec find(Key, Orddict) -> {'ok', Value} | 'error' when
-      Key :: term(),
-      Orddict :: orddict(),
-      Value :: term().
+      Orddict :: orddict(Key, Value).
 
 find(Key, [{K,_}|_]) when Key < K -> error;
 find(Key, [{K,_}|D]) when Key > K -> find(Key, D);
@@ -91,17 +88,16 @@ find(_Key, [{_K,Value}|_]) -> {ok,Value};	%Key == K
 find(_, []) -> error.
 
 -spec fetch_keys(Orddict) -> Keys when
-      Orddict :: orddict(),
-      Keys :: [term()].
+      Orddict :: orddict(Key, Value :: term()),
+      Keys :: [Key].
 
 fetch_keys([{Key,_}|Dict]) ->
     [Key|fetch_keys(Dict)];
 fetch_keys([]) -> [].
 
 -spec erase(Key, Orddict1) -> Orddict2 when
-      Key :: term(),
-      Orddict1 :: orddict(),
-      Orddict2 :: orddict().
+      Orddict1 :: orddict(Key, Value),
+      Orddict2 :: orddict(Key, Value).
 
 erase(Key, [{K,_}=E|Dict]) when Key < K -> [E|Dict];
 erase(Key, [{K,_}=E|Dict]) when Key > K ->
@@ -110,13 +106,11 @@ erase(_Key, [{_K,_Val}|Dict]) -> Dict;		%Key == K
 erase(_, []) -> [].
 
 -spec store(Key, Value, Orddict1) -> Orddict2 when
-      Key :: term(),
-      Value :: term(),
-      Orddict1 :: orddict(),
-      Orddict2 :: orddict().
+      Orddict1 :: orddict(Key, Value),
+      Orddict2 :: orddict(Key, Value).
 
-store(Key, New, [{K,_}=E|Dict]) when Key < K ->
-    [{Key,New},E|Dict];
+store(Key, New, [{K,_}|_]=Dict) when Key < K ->
+    [{Key,New}|Dict];
 store(Key, New, [{K,_}=E|Dict]) when Key > K ->
     [E|store(Key, New, Dict)];
 store(Key, New, [{_K,_Old}|Dict]) ->		%Key == K
@@ -124,13 +118,11 @@ store(Key, New, [{_K,_Old}|Dict]) ->		%Key == K
 store(Key, New, []) -> [{Key,New}].
 
 -spec append(Key, Value, Orddict1) -> Orddict2 when
-      Key :: term(),
-      Value :: term(),
-      Orddict1 :: orddict(),
-      Orddict2 :: orddict().
+      Orddict1 :: orddict(Key, Value),
+      Orddict2 :: orddict(Key, Value).
 
-append(Key, New, [{K,_}=E|Dict]) when Key < K ->
-    [{Key,[New]},E|Dict];
+append(Key, New, [{K,_}|_]=Dict) when Key < K ->
+    [{Key,[New]}|Dict];
 append(Key, New, [{K,_}=E|Dict]) when Key > K ->
     [E|append(Key, New, Dict)];
 append(Key, New, [{_K,Old}|Dict]) ->		%Key == K
@@ -138,13 +130,12 @@ append(Key, New, [{_K,Old}|Dict]) ->		%Key == K
 append(Key, New, []) -> [{Key,[New]}].
 
 -spec append_list(Key, ValList, Orddict1) -> Orddict2 when
-      Key :: term(),
-      ValList :: [Value :: term()],
-      Orddict1 :: orddict(),
-      Orddict2 :: orddict().
+      ValList :: [Value],
+      Orddict1 :: orddict(Key, Value),
+      Orddict2 :: orddict(Key, Value).
 
-append_list(Key, NewList, [{K,_}=E|Dict]) when Key < K ->
-    [{Key,NewList},E|Dict];
+append_list(Key, NewList, [{K,_}|_]=Dict) when Key < K ->
+    [{Key,NewList}|Dict];
 append_list(Key, NewList, [{K,_}=E|Dict]) when Key > K ->
     [E|append_list(Key, NewList, Dict)];
 append_list(Key, NewList, [{_K,Old}|Dict]) ->		%Key == K
@@ -153,10 +144,9 @@ append_list(Key, NewList, []) ->
     [{Key,NewList}].
 
 -spec update(Key, Fun, Orddict1) -> Orddict2 when
-      Key :: term(),
-      Fun :: fun((Value1 :: term()) -> Value2 :: term()),
-      Orddict1 :: orddict(),
-      Orddict2 :: orddict().
+      Fun :: fun((Value1 :: Value) -> Value2 :: Value),
+      Orddict1 :: orddict(Key, Value),
+      Orddict2 :: orddict(Key, Value).
 
 update(Key, Fun, [{K,_}=E|Dict]) when Key > K ->
     [E|update(Key, Fun, Dict)];
@@ -164,14 +154,13 @@ update(Key, Fun, [{K,Val}|Dict]) when Key == K ->
     [{Key,Fun(Val)}|Dict].
 
 -spec update(Key, Fun, Initial, Orddict1) -> Orddict2 when
-      Key :: term(),
-      Initial :: term(),
-      Fun :: fun((Value1 :: term()) -> Value2 :: term()),
-      Orddict1 :: orddict(),
-      Orddict2 :: orddict().
-
-update(Key, _, Init, [{K,_}=E|Dict]) when Key < K ->
-    [{Key,Init},E|Dict];
+      Initial :: Value,
+      Fun :: fun((Value1 :: Value) -> Value2 :: Value),
+      Orddict1 :: orddict(Key, Value),
+      Orddict2 :: orddict(Key, Value).
+
+update(Key, _, Init, [{K,_}|_]=Dict) when Key < K ->
+    [{Key,Init}|Dict];
 update(Key, Fun, Init, [{K,_}=E|Dict]) when Key > K ->
     [E|update(Key, Fun, Init, Dict)];
 update(Key, Fun, _Init, [{_K,Val}|Dict]) ->		%Key == K
@@ -179,13 +168,12 @@ update(Key, Fun, _Init, [{_K,Val}|Dict]) ->		%Key == K
 update(Key, _, Init, []) -> [{Key,Init}].
 
 -spec update_counter(Key, Increment, Orddict1) -> Orddict2 when
-      Key :: term(),
-      Increment :: number(),
-      Orddict1 :: orddict(),
-      Orddict2 :: orddict().
+      Orddict1 :: orddict(Key, Value),
+      Orddict2 :: orddict(Key, Value),
+      Increment :: number().
 
-update_counter(Key, Incr, [{K,_}=E|Dict]) when Key < K ->
-    [{Key,Incr},E|Dict];
+update_counter(Key, Incr, [{K,_}|_]=Dict) when Key < K ->
+    [{Key,Incr}|Dict];
 update_counter(Key, Incr, [{K,_}=E|Dict]) when Key > K ->
     [E|update_counter(Key, Incr, Dict)];
 update_counter(Key, Incr, [{_K,Val}|Dict]) ->		%Key == K
@@ -193,28 +181,30 @@ update_counter(Key, Incr, [{_K,Val}|Dict]) ->		%Key == K
 update_counter(Key, Incr, []) -> [{Key,Incr}].
 
 -spec fold(Fun, Acc0, Orddict) -> Acc1 when
-      Fun :: fun((Key :: term(), Value :: term(), AccIn :: term()) -> AccOut :: term()),
-      Acc0 :: term(),
-      Acc1 :: term(),
-      Orddict :: orddict().
+      Fun :: fun((Key, Value, AccIn) -> AccOut),
+      Orddict :: orddict(Key, Value),
+      Acc0 :: Acc,
+      Acc1 :: Acc,
+      AccIn :: Acc,
+      AccOut :: Acc.
 
 fold(F, Acc, [{Key,Val}|D]) ->
     fold(F, F(Key, Val, Acc), D);
 fold(F, Acc, []) when is_function(F, 3) -> Acc.
 
 -spec map(Fun, Orddict1) -> Orddict2 when
-      Fun :: fun((Key :: term(), Value1 :: term()) -> Value2 :: term()),
-      Orddict1 :: orddict(),
-      Orddict2 :: orddict().
+      Fun :: fun((Key, Value1) -> Value2),
+      Orddict1 :: orddict(Key, Value1),
+      Orddict2 :: orddict(Key, Value2).
 
 map(F, [{Key,Val}|D]) ->
     [{Key,F(Key, Val)}|map(F, D)];
 map(F, []) when is_function(F, 2) -> [].
 
 -spec filter(Pred, Orddict1) -> Orddict2 when
-      Pred :: fun((Key :: term(), Value :: term()) -> boolean()),
-      Orddict1 :: orddict(),
-      Orddict2 :: orddict().
+      Pred :: fun((Key, Value) -> boolean()),
+      Orddict1 :: orddict(Key, Value),
+      Orddict2 :: orddict(Key, Value).
 
 filter(F, [{Key,Val}=E|D]) ->
     case F(Key, Val) of
@@ -224,10 +214,10 @@ filter(F, [{Key,Val}=E|D]) ->
 filter(F, []) when is_function(F, 2) -> [].
 
 -spec merge(Fun, Orddict1, Orddict2) -> Orddict3 when
-      Fun :: fun((Key :: term(), Value1 :: term(), Value2 :: term()) -> Value :: term()),
-      Orddict1 :: orddict(),
-      Orddict2 :: orddict(),
-      Orddict3 :: orddict().
+      Fun :: fun((Key, Value1, Value2) -> Value),
+      Orddict1 :: orddict(Key, Value1),
+      Orddict2 :: orddict(Key, Value2),
+      Orddict3 :: orddict(Key, Value).
 
 merge(F, [{K1,_}=E1|D1], [{K2,_}=E2|D2]) when K1 < K2 ->
     [E1|merge(F, D1, [E2|D2])];
diff --git a/lib/stdlib/src/otp_internal.erl b/lib/stdlib/src/otp_internal.erl
index 6c25beabe9..0340015c35 100644
--- a/lib/stdlib/src/otp_internal.erl
+++ b/lib/stdlib/src/otp_internal.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1999-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -18,7 +18,7 @@
 %%
 -module(otp_internal).
 
--export([obsolete/3]).
+-export([obsolete/3, obsolete_type/3]).
 
 %%----------------------------------------------------------------------
 
@@ -26,7 +26,7 @@
 -type mfas()    :: mfa() | {atom(), atom(), [byte()]}.
 -type release() :: string().
 
--spec obsolete(atom(), atom(), byte()) ->
+-spec obsolete(module(), atom(), arity()) ->
 	'no' | {tag(), string()} | {tag(), mfas(), release()}.
 
 obsolete(Module, Name, Arity) ->
@@ -59,6 +59,11 @@ obsolete_1(erl_eval, arg_list, 3) ->
 obsolete_1(erlang, hash, 2) ->
     {deprecated, {erlang, phash2, 2}};
 
+obsolete_1(erlang, now, 0) ->
+    {deprecated,
+     "Deprecated BIF. See the \"Time and Time Correction in Erlang\" "
+     "chapter of the ERTS User's Guide for more information."};
+
 obsolete_1(calendar, local_time_to_universal_time, 1) ->
     {deprecated, {calendar, local_time_to_universal_time_dst, 1}};
 
@@ -577,8 +582,57 @@ obsolete_1(asn1rt, utf8_binary_to_list, 1) ->
     {deprecated,{unicode,characters_to_list,1}};
 obsolete_1(asn1rt, utf8_list_to_binary, 1) ->
     {deprecated,{unicode,characters_to_binary,1}};
-obsolete_1(pg, _, _) ->
-    {deprecated,"deprecated; will be removed in OTP 18"};
+
+%% Added in OTP 18.
+obsolete_1(core_lib, get_anno, 1) ->
+    {deprecated,{cerl,get_ann,1}};
+obsolete_1(core_lib, set_anno, 2) ->
+    {deprecated,{cerl,set_ann,2}};
+obsolete_1(core_lib, is_literal, 1) ->
+    {deprecated,{cerl,is_literal,1}};
+obsolete_1(core_lib, is_literal_list, 1) ->
+    {deprecated,"deprecated; use lists:all(fun cerl:is_literal/1, L)"
+     " instead"};
+obsolete_1(core_lib, literal_value, 1) ->
+    {deprecated,{core_lib,concrete,1}};
+obsolete_1(erl_scan, set_attribute, 3) ->
+    {deprecated,
+     "deprecated (will be removed in OTP 19); use erl_anno:set_line/2 instead"};
+obsolete_1(erl_scan, attributes_info, 1) ->
+    {deprecated,
+     "deprecated (will be removed in OTP 19); use "
+     "erl_anno:{column,line,location,text}/1 instead"};
+obsolete_1(erl_scan, attributes_info, 2) ->
+    {deprecated,
+     "deprecated (will be removed in OTP 19); use "
+     "erl_anno:{column,line,location,text}/1 instead"};
+obsolete_1(erl_scan, token_info, 1) ->
+    {deprecated,
+     "deprecated (will be removed in OTP 19); use "
+     "erl_scan:{category,column,line,location,symbol,text}/1 instead"};
+obsolete_1(erl_scan, token_info, 2) ->
+    {deprecated,
+     "deprecated (will be removed in OTP 19); use "
+     "erl_scan:{category,column,line,location,symbol,text}/1 instead"};
+obsolete_1(erl_parse, set_line, 2) ->
+    {deprecated,
+     "deprecated (will be removed in OTP 19); use erl_anno:set_line/2 instead"};
+obsolete_1(erl_parse, get_attributes, 1) ->
+    {deprecated,
+     "deprecated (will be removed in OTP 19); use "
+     "erl_anno:{column,line,location,text}/1 instead"};
+obsolete_1(erl_parse, get_attribute, 2) ->
+    {deprecated,
+     "deprecated (will be removed in OTP 19); use "
+     "erl_anno:{column,line,location,text}/1 instead"};
+obsolete_1(erl_lint, modify_line, 2) ->
+    {deprecated,
+     "deprecated (will be removed in OTP 19); use erl_parse:map_anno/2 instead"};
+obsolete_1(ssl, negotiated_next_protocol, 1) ->
+    {deprecated,{ssl,negotiated_protocol,1}};
+
+obsolete_1(ssl, connection_info, 1) ->
+    {deprecated, "deprecated; use connection_information/[1,2] instead"};
 
 obsolete_1(_, _, _) ->
     no.
@@ -626,3 +680,30 @@ is_snmp_agent_function(add_agent_caps,        2) -> true;
 is_snmp_agent_function(del_agent_caps,        1) -> true;
 is_snmp_agent_function(get_agent_caps,        0) -> true;
 is_snmp_agent_function(_,		      _) -> false.
+
+-spec obsolete_type(module(), atom(), arity()) ->
+	'no' | {tag(), string()} | {tag(), mfas(), release()}.
+
+obsolete_type(Module, Name, NumberOfVariables) ->
+    case obsolete_type_1(Module, Name, NumberOfVariables) of
+%% 	{deprecated=Tag,{_,_,_}=Replacement} ->
+%% 	    {Tag,Replacement,"in a future release"};
+	{_,String}=Ret when is_list(String) ->
+	    Ret;
+%% 	{_,_,_}=Ret ->
+%% 	    Ret;
+	no ->
+	    no
+    end.
+
+obsolete_type_1(erl_scan,column,0) ->
+    {deprecated,
+     "deprecated (will be removed in OTP 19); use erl_anno:column() instead"};
+obsolete_type_1(erl_scan,line,0) ->
+    {deprecated,
+     "deprecated (will be removed in OTP 19); use erl_anno:line() instead"};
+obsolete_type_1(erl_scan,location,0) ->
+    {deprecated,
+     "deprecated (will be removed in OTP 19); use erl_anno:location() instead"};
+obsolete_type_1(_,_,_) ->
+    no.
diff --git a/lib/stdlib/src/pg.erl b/lib/stdlib/src/pg.erl
deleted file mode 100644
index a41fd329c2..0000000000
--- a/lib/stdlib/src/pg.erl
+++ /dev/null
@@ -1,187 +0,0 @@
-%%
-%% %CopyrightBegin%
-%% 
-%% Copyright Ericsson AB 1996-2014. All Rights Reserved.
-%% 
-%% The contents of this file are subject to the Erlang Public License,
-%% Version 1.1, (the "License"); you may not use this file except in
-%% compliance with the License. You should have received a copy of the
-%% Erlang Public License along with this software. If not, it can be
-%% retrieved online at http://www.erlang.org/.
-%% 
-%% Software distributed under the License is distributed on an "AS IS"
-%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-%% the License for the specific language governing rights and limitations
-%% under the License.
-%% 
-%% %CopyrightEnd%
-%%
--module(pg).
--deprecated(module).
-
-%% pg provides a process group facility. Messages 
-%% can be multicasted to all members in the group
-
--export([create/1,
-	 create/2,
-	 standby/2,
-	 join/2,
-	 send/2,
-	 esend/2,
-	 members/1,
-	 name_to_pid/1,
-	 master/1]).
-
-
-%% Create a brand new empty process group with the master residing 
-%% at the local node
-
--spec create(PgName) -> 'ok' | {'error', Reason} when
-      PgName :: term(),
-      Reason :: 'already_created' | term().
-
-create(PgName) -> 
-    catch begin check(PgName),
-    Pid = spawn(pg,master,[PgName]),
-    global:register_name(PgName,Pid),
-    ok end.
-
-%% Create a brand new empty process group with the master 
-%% residing at Node
-
--spec create(PgName, Node) -> 'ok' | {'error', Reason} when
-      PgName :: term(),
-      Node :: node(),
-      Reason :: 'already_created' | term().
-
-create(PgName, Node) ->
-    catch begin check(PgName),
-    Pid = spawn(Node,pg,master,[PgName]),
-    global:register_name(PgName,Pid),
-    ok end.
-
-%% Have a process on Node that will act as a standby for the process
-%% group manager. So if the node where the manager runs fails, the
-%% process group will continue to function.
-
--spec standby(term(), node()) -> 'ok'.
-
-standby(_PgName, _Node) ->
-    ok.
-
-%% Tell process group PgName that Pid is a new member of the group
-%% synchronously return a list of all old members in the group
-
--spec join(PgName, Pid) -> Members when
-      PgName :: term(),
-      Pid :: pid(),
-      Members :: [pid()].
-
-join(PgName, Pid) when is_atom(PgName) -> 
-    global:send(PgName, {join,self(),Pid}),
-    receive
-	{_P,{members,Members}} ->
-	    Members
-    end.
-
-%% Multi cast Mess to all members in the group
-
--spec send(PgName, Msg) -> 'ok' when
-      PgName :: term(),
-      Msg :: term().
-
-send(PgName, Mess) when is_atom(PgName) ->
-    global:send(PgName, {send, self(), Mess}),
-    ok;
-send(Pg, Mess) when is_pid(Pg) ->
-    Pg ! {send,self(),Mess},
-    ok.
-
-%% multi cast a message to all members in the group but ourselves
-%% If we are a member
-
--spec esend(PgName, Msg) -> 'ok' when
-      PgName :: term(),
-      Msg :: term().
-
-esend(PgName, Mess) when is_atom(PgName) ->
-    global:send(PgName, {esend,self(),Mess}),
-    ok;
-esend(Pg, Mess) when is_pid(Pg) ->
-    Pg ! {esend,self(),Mess},
-    ok.
-
-%% Return the members of the group
-
--spec members(PgName) -> Members when
-      PgName :: term(),
-      Members :: [pid()].
-
-members(PgName) when is_atom(PgName) ->
-    global:send(PgName, {self() ,members}),
-    receive
-	{_P,{members,Members}} ->
-	    Members
-    end;
-members(Pg) when is_pid(Pg) ->
-    Pg ! {self,members},
-    receive
-	{_P,{members,Members}} ->
-	    Members
-    end.
-
--spec name_to_pid(atom()) -> pid() | 'undefined'.
-
-name_to_pid(PgName) when is_atom(PgName) ->
-    global:whereis_name(PgName).
-
--spec master(term()) -> no_return().
-
-master(PgName) ->
-    process_flag(trap_exit, true),
-    master_loop(PgName, []).
-
-master_loop(PgName,Members) ->
-    receive
-	{send,From,Message} ->
-	    send_all(Members,{pg_message,From,PgName,Message}),
-	    master_loop(PgName,Members);
-	{esend,From,Message} ->
-	    send_all(lists:delete(From,Members),
-		     {pg_message,From,PgName,Message}),
-	    master_loop(PgName,Members);
-	{join,From,Pid} ->
-	    link(Pid),
-	    send_all(Members,{new_member,PgName,Pid}),
-	    From ! {self(),{members,Members}},
-	    master_loop(PgName,[Pid|Members]);
-	{From,members} ->
-	    From ! {self(),{members,Members}},
-	    master_loop(PgName,Members);
-	{'EXIT',From,_} ->
-	    L =
-		case lists:member(From,Members) of
-		    true ->
-			NewMembers = lists:delete(From,Members),
-			send_all(NewMembers, {crashed_member,PgName,From}),
-			NewMembers;
-		    false ->
-			Members
-		end,
-	    master_loop(PgName,L)  
-    end.
-
-send_all([], _) -> ok;
-send_all([P|Ps], M) ->
-    P ! M,
-    send_all(Ps, M).
-
-%% Check if the process group already exists
-
-check(PgName) ->
-    case global:whereis_name(PgName) of
-        Pid when is_pid(Pid) -> 
-            throw({error,already_created});
-        undefined ->
-	    ok
-    end.
diff --git a/lib/stdlib/src/proc_lib.erl b/lib/stdlib/src/proc_lib.erl
index bf2a4e7ac5..8792ff44d3 100644
--- a/lib/stdlib/src/proc_lib.erl
+++ b/lib/stdlib/src/proc_lib.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2014. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -30,7 +30,8 @@
 	 hibernate/3,
 	 init_ack/1, init_ack/2,
 	 init_p/3,init_p/5,format/1,format/2,initial_call/1,
-         translate_initial_call/1]).
+         translate_initial_call/1,
+	 stop/1, stop/3]).
 
 %% Internal exports.
 -export([wake_up/3]).
@@ -748,3 +749,50 @@ format_tag(Tag, Data) ->
 
 modifier(latin1) -> "";
 modifier(_) -> "t".
+
+
+%%% -----------------------------------------------------------
+%%% Stop a process and wait for it to terminate
+%%% -----------------------------------------------------------
+-spec stop(Process) -> 'ok' when
+      Process :: pid() | RegName | {RegName,node()},
+      RegName :: atom().
+stop(Process) ->
+    stop(Process, normal, infinity).
+
+-spec stop(Process, Reason, Timeout) -> 'ok' when
+      Process :: pid() | RegName | {RegName,node()},
+      RegName :: atom(),
+      Reason :: term(),
+      Timeout :: timeout().
+stop(Process, Reason, Timeout) ->
+    {Pid, Mref} = erlang:spawn_monitor(do_stop(Process, Reason)),
+    receive
+	{'DOWN', Mref, _, _, Reason} ->
+	    ok;
+	{'DOWN', Mref, _, _, {noproc,{sys,terminate,_}}} ->
+	    exit(noproc);
+	{'DOWN', Mref, _, _, CrashReason} ->
+	    exit(CrashReason)
+    after Timeout ->
+	    exit(Pid, kill),
+	    receive
+		{'DOWN', Mref, _, _, _} ->
+		    exit(timeout)
+	    end
+    end.
+
+-spec do_stop(Process, Reason) -> Fun when
+      Process :: pid() | RegName | {RegName,node()},
+      RegName :: atom(),
+      Reason :: term(),
+      Fun :: fun(() -> no_return()).
+do_stop(Process, Reason) ->
+    fun() ->
+	    Mref = erlang:monitor(process, Process),
+	    ok = sys:terminate(Process, Reason, infinity),
+	    receive
+		{'DOWN', Mref, _, _, ExitReason} ->
+		    exit(ExitReason)
+	    end
+    end.
diff --git a/lib/stdlib/src/qlc.erl b/lib/stdlib/src/qlc.erl
index 002032d48d..ad8aafbb1a 100644
--- a/lib/stdlib/src/qlc.erl
+++ b/lib/stdlib/src/qlc.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2004-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2004-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -1006,7 +1006,7 @@ listify(T) ->
 -record(simple_qlc,
         {p,         % atom(), pattern variable
          le,
-         line,
+         line :: erl_anno:anno(),
          init_value,
          optz       % #optz
          }).
@@ -1148,15 +1148,18 @@ abstract(Info, true=_Flat, NElements, Depth) ->
         [{match,_,Expr,Q}] ->
             Q;
         [{match,_,Expr,Q} | Body] ->
-            {block, 0, lists:reverse(Body, [Q])};
+            {block, anno0(), lists:reverse(Body, [Q])};
         _ ->
-            {block, 0, lists:reverse(Body0, [Expr])}
+            {block, anno0(), lists:reverse(Body0, [Expr])}
     end.
 
-abstract({qlc, E0, Qs0, Opt}, NElements, Depth) ->
+abstract(Info, NElements, Depth) ->
+    abstract1(Info, NElements, Depth, anno1()).
+
+abstract1({qlc, E0, Qs0, Opt}, NElements, Depth, A) ->
     Qs = lists:map(fun({generate, P, LE}) ->
-                           {generate, 1, binary_to_term(P), 
-                            abstract(LE, NElements, Depth)};
+                           {generate, A, binary_to_term(P),
+                            abstract1(LE, NElements, Depth, A)};
                       (F) -> 
                            binary_to_term(F)
                    end, Qs0),
@@ -1165,12 +1168,12 @@ abstract({qlc, E0, Qs0, Opt}, NElements, Depth) ->
              [] -> [];
              _ -> [abstract_term(Opt, 1)]
          end,
-    ?QLC_Q(1, 1, 1, 1, {lc,1,E,Qs}, Os);
-abstract({table, {M, F, As0}}, _NElements, _Depth) 
+    ?QLC_Q(A, A, A, A, {lc,A,E,Qs}, Os);
+abstract1({table, {M, F, As0}}, _NElements, _Depth, Anno)
                           when is_atom(M), is_atom(F), is_list(As0) ->
     As = [abstract_term(A, 1) || A <- As0],
-    {call, 1, {remote, 1, {atom, 1, M}, {atom, 1, F}}, As};
-abstract({table, TableDesc}, _NElements, _Depth) ->
+    {call, Anno, {remote, Anno, {atom, Anno, M}, {atom, Anno, F}}, As};
+abstract1({table, TableDesc}, _NElements, _Depth, _A) ->
     case io_lib:deep_char_list(TableDesc) of
         true ->
             {ok, Tokens, _} = erl_scan:string(lists:flatten(TableDesc++".")),
@@ -1179,27 +1182,28 @@ abstract({table, TableDesc}, _NElements, _Depth) ->
         false -> % abstract expression
             TableDesc
     end;
-abstract({append, Infos}, NElements, Depth) ->
+abstract1({append, Infos}, NElements, Depth, A) ->
     As = lists:foldr(fun(Info, As0) -> 
-                             {cons,1,abstract(Info, NElements, Depth),As0}
-                     end, {nil, 1}, Infos),
-    {call, 1, {remote, 1, {atom, 1, ?MODULE}, {atom, 1, append}}, [As]};
-abstract({sort, Info, SortOptions}, NElements, Depth) ->    
-    {call, 1, {remote, 1, {atom, 1, ?MODULE}, {atom, 1, sort}},
-     [abstract(Info, NElements, Depth), abstract_term(SortOptions, 1)]};
-abstract({keysort, Info, Kp, SortOptions}, NElements, Depth) ->
-    {call, 1, {remote, 1, {atom, 1, ?MODULE}, {atom, 1, keysort}},
-     [abstract_term(Kp, 1), abstract(Info, NElements, Depth), 
+                             {cons,A,abstract1(Info, NElements, Depth, A),
+                              As0}
+                     end, {nil, A}, Infos),
+    {call, A, {remote, A, {atom, A, ?MODULE}, {atom, A, append}}, [As]};
+abstract1({sort, Info, SortOptions}, NElements, Depth, A) ->
+    {call, A, {remote, A, {atom, A, ?MODULE}, {atom, A, sort}},
+     [abstract1(Info, NElements, Depth, A), abstract_term(SortOptions, 1)]};
+abstract1({keysort, Info, Kp, SortOptions}, NElements, Depth, A) ->
+    {call, A, {remote, A, {atom, A, ?MODULE}, {atom, A, keysort}},
+     [abstract_term(Kp, 1), abstract1(Info, NElements, Depth, A),
       abstract_term(SortOptions, 1)]};
-abstract({list,L,MS}, NElements, Depth) ->
-    {call, 1, {remote, 1, {atom, 1, ets}, {atom, 1, match_spec_run}},
-     [abstract(L, NElements, Depth),
-      {call, 1, {remote, 1, {atom, 1, ets}, {atom, 1, match_spec_compile}},
+abstract1({list,L,MS}, NElements, Depth, A) ->
+    {call, A, {remote, A, {atom, A, ets}, {atom, A, match_spec_run}},
+     [abstract1(L, NElements, Depth, A),
+      {call, A, {remote, A, {atom, A, ets}, {atom, A, match_spec_compile}},
        [abstract_term(depth(MS, Depth), 1)]}]};
-abstract({list, L}, NElements, Depth) when NElements =:= infinity; 
-                                           NElements >= length(L) ->
+abstract1({list, L}, NElements, Depth, _A) when NElements =:= infinity;
+                                                NElements >= length(L) ->
     abstract_term(depth(L, Depth), 1);
-abstract({list, L}, NElements, Depth) ->
+abstract1({list, L}, NElements, Depth, _A) ->
     abstract_term(depth(lists:sublist(L, NElements), Depth) ++ '...', 1).
 
 depth(List, infinity) ->
@@ -1251,14 +1255,14 @@ abstract_term(Term) ->
     abstract_term(Term, 0).
 
 abstract_term(Term, Line) ->
-    abstr_term(Term, Line).
+    abstr_term(Term, anno(Line)).
 
 abstr_term(Tuple, Line) when is_tuple(Tuple) ->
     {tuple,Line,[abstr_term(E, Line) || E <- tuple_to_list(Tuple)]};
 abstr_term([_ | _]=L, Line) ->
     case io_lib:char_list(L) of
         true ->
-            erl_parse:abstract(L, Line);
+            erl_parse:abstract(L, erl_anno:line(Line));
         false ->
             abstr_list(L, Line)
     end;
@@ -1285,7 +1289,7 @@ abstr_term(Fun, Line) when is_function(Fun) ->
 abstr_term(PPR, Line) when is_pid(PPR); is_port(PPR); is_reference(PPR) ->
     {special, Line, lists:flatten(io_lib:write(PPR))};    
 abstr_term(Simple, Line) ->
-    erl_parse:abstract(Simple, Line).
+    erl_parse:abstract(Simple, erl_anno:line(Line)).
 
 abstr_list([H | T], Line) ->
     {cons, Line, abstr_term(H, Line), abstr_list(T, Line)};
@@ -1519,7 +1523,7 @@ join_info(Join, QInfo, Qdata, Code) ->
                          %% Only compared constants (==).
                          [Cs1_0, Cs2_0]
                  end,
-    L = 0,
+    L = anno0(),
     G1_0 = {var,L,'G1'}, G2_0 = {var,L,'G2'},
     JP = element(JQNum + 1, Code),
     %% Create code for wh1 and wh2 in #join{}:
@@ -1571,7 +1575,7 @@ join_merge_info(QNum, QInfo, Code, G, ExtraConstants) ->
                         {P, P};
                     _ -> 
                         {PV, _} = aux_name1('P', 0, abstract_vars(P)),
-                        L = 0,
+                        L = erl_anno:new(0),
                         V = {var, L, PV},
                         {V, {match, L, V, P}}
                  end,
@@ -1579,19 +1583,20 @@ join_merge_info(QNum, QInfo, Code, G, ExtraConstants) ->
             LEI = {generate, term_to_binary(M), LEInfo},
             TP = term_to_binary(G),
             CFs = [begin
-                       Call = {call,0,{atom,0,element},[{integer,0,Col},EPV]},
-                       F = list2op([{op,0,Op,abstract_term(Con),Call}
-                                      || {Con,Op} <- ConstOps], 'or'),
+                       A = anno0(),
+                       Call = {call,A,{atom,A,element},[{integer,A,Col},EPV]},
+                       F = list2op([{op,A,Op,abstract_term(Con),Call}
+                                      || {Con,Op} <- ConstOps], 'or', A),
                        term_to_binary(F)
                    end ||
                       {Col,ConstOps} <- ExtraConstants],
             {{I,G}, [{generate, TP, {qlc, DQP, [LEI | CFs], []}}]}
     end.
 
-list2op([E], _Op) ->
+list2op([E], _Op, _Anno) ->
     E;
-list2op([E | Es], Op) ->
-    {op,0,Op,E,list2op(Es, Op)}.
+list2op([E | Es], Op, Anno) ->
+    {op,Anno,Op,E,list2op(Es, Op, Anno)}.
 
 join_lookup_info(QNum, QInfo, G) ->
     {generate, _, LEInfo}=I = lists:nth(QNum, QInfo),
@@ -1704,7 +1709,7 @@ eval_le(LE_fun, GOpt) ->
 
 prep_qlc_lc({simple_v1, PVar, LE_fun, L}, Opt, GOpt, _H) ->
     check_lookup_option(Opt, false),
-    prep_simple_qlc(PVar, L, eval_le(LE_fun, GOpt), Opt);
+    prep_simple_qlc(PVar, anno(L), eval_le(LE_fun, GOpt), Opt);
 prep_qlc_lc({qlc_v1, QFun, CodeF, Qdata0, QOpt}, Opt, GOpt, _H) ->
     F = fun(?qual_data(_QNum, _GoI, _SI, fil)=QualData, ModGens) -> 
                 {QualData, ModGens};
@@ -1821,7 +1826,7 @@ may_create_simple(#qlc_opt{unique = Unique, cache = Cache} = Opt,
     if 
         Unique and not IsUnique; 
         (Cache =/= false) and not IsCached ->
-            prep_simple_qlc(?SIMPLE_QVAR, 1, Prep, Opt);
+            prep_simple_qlc(?SIMPLE_QVAR, anno(1), Prep, Opt);
         true ->
             Prep
     end.
@@ -2764,8 +2769,8 @@ tmp_filename(TmpDirOpt) ->
     U = "_",
     Node = node(),
     Pid = os:getpid(),
-    {MSecs,Secs,MySecs} = erlang:now(),
-    F = lists:concat([?MODULE,U,Node,U,Pid,U,MSecs,U,Secs,U,MySecs]),
+    Unique = erlang:unique_integer(),
+    F = lists:concat([?MODULE,U,Node,U,Pid,U,Unique]),
     TmpDir = case TmpDirOpt of
                  "" ->
                      {ok, CurDir} = file:get_cwd(),
@@ -3772,6 +3777,15 @@ grd(Fun, Arg) ->
             false
     end.
 
+anno0() ->
+    anno(0).
+
+anno1() ->
+    anno(1).
+
+anno(L) ->
+    erl_anno:new(L).
+
 family(L) ->
     sofs:to_external(sofs:relation_to_family(sofs:relation(L))).
 
diff --git a/lib/stdlib/src/qlc_pt.erl b/lib/stdlib/src/qlc_pt.erl
index b6bb758dfb..a4d2157b35 100644
--- a/lib/stdlib/src/qlc_pt.erl
+++ b/lib/stdlib/src/qlc_pt.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2004-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2004-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -39,7 +39,12 @@
          opt        % #qlc_opt
         }).
 
--record(state, {imp, maxargs, records, xwarnings = []}).
+-record(state, {imp,
+                maxargs,
+                records,
+                xwarnings = [],
+                intro_vars,
+                node_info}).
 
 %-define(debug, true).
 
@@ -66,37 +71,49 @@
       Options :: [Option],
       Option :: type_checker | compile:option()).
 
-parse_transform(Forms, Options) ->
+parse_transform(Forms0, Options) ->
     ?DEBUG("qlc Parse Transform~n", []),
-    State = #state{imp = is_qlc_q_imported(Forms),
-                   maxargs = ?COMPILE_MAX_NUM_OF_ARGS,
-                   records = record_attributes(Forms)},
-    case called_from_type_checker(Options) of
-        true ->
-            %% The returned value should conform to the types, but
-            %% need not evaluate to anything meaningful.
-            L = 0,
-            {tuple,_,Fs0} = abstr(#qlc_lc{}, L),
-            F = fun(_Id, LC, A) ->
-                        Init = simple(L, 'V', LC, L),
-                        {{tuple,L,set_field(#qlc_lc.lc, Fs0, Init)}, A}
-                end,
-            {Forms1,ok} = qlc_mapfold(F, ok, Forms, State),
-            Forms1;
-        false ->
-            FormsNoShadows = no_shadows(Forms, State),
-            case compile_messages(Forms, FormsNoShadows, Options, State) of
-                {[],[],Warnings} ->
-                    {NewForms, State1} = transform(FormsNoShadows, State),
-                    ExtraWs = State1#state.xwarnings,
-                    {[],WForms} = no_duplicates(NewForms, [], Warnings, 
-                                                ExtraWs, Options),
-                    WForms ++ NewForms;
-                {E0,Errors,Warnings} ->
-                    {EForms,WForms} = no_duplicates(Forms, E0++Errors, 
-                                                    Warnings, [], Options),
-                    EForms ++ WForms ++ Forms
-            end
+    Imported = is_qlc_q_imported(Forms0),
+    {Forms, FormsNoShadows, State} = initiate(Forms0, Imported),
+    NodeInfo = State#state.node_info,
+    try
+        case called_from_type_checker(Options) of
+            true ->
+                %% The returned value should conform to the types, but
+                %% need not evaluate to anything meaningful.
+                L = anno0(),
+                {tuple,_,Fs0} = abstr(#qlc_lc{}, L),
+                F = fun(_Id, LC, A) ->
+                            Init = simple(L, 'V', LC, L),
+                            {{tuple,L,set_field(#qlc_lc.lc, Fs0, Init)}, A}
+                    end,
+                {Forms1,ok} = qlc_mapfold(F, ok, Forms, State),
+                Forms1;
+            false ->
+                case
+                    compile_messages(Forms, FormsNoShadows, Options, State)
+                of
+                    {[],Warnings} ->
+                        ?DEBUG("node info1 ~p~n",
+                               [lists:sort(ets:tab2list(NodeInfo))]),
+                        {NewForms, State1} =
+                            transform(FormsNoShadows, State),
+                        ExtraWs = State1#state.xwarnings,
+                        {[],WForms} = no_duplicates(NewForms, [], Warnings,
+                                                    ExtraWs, Options),
+                        (restore_locations(WForms, State) ++
+                         restore_anno(NewForms, NodeInfo));
+                    {Errors,Warnings} ->
+                        ?DEBUG("node info2 ~p~n",
+                               [lists:sort(ets:tab2list(NodeInfo))]),
+                        {EForms,WForms} = no_duplicates(FormsNoShadows, Errors,
+                                                        Warnings, [],
+                                                        Options),
+                        restore_locations(EForms ++ WForms, State) ++ Forms0
+                end
+        end
+    after
+        true = ets:delete(NodeInfo)
     end.
 
 -spec(transform_from_evaluator(LC, Bs) -> Expr when
@@ -124,30 +141,78 @@ called_from_type_checker(Options) ->
     lists:member(type_checker, Options).
 
 transform_expression(LC, Bs0, WithLintErrors) ->
-    L = 1,
+    L = anno1(),
     As = [{var,L,V} || {V,_Val} <- Bs0],
     Ar = length(As),
     F = {function,L,bar,Ar,[{clause,L,As,[],[?QLC_Q(L, L, L, L, LC, [])]}]},
-    Forms = [{attribute,L,file,{"foo",L}},
-             {attribute,L,module,foo}, F],
-    State = #state{imp = false,
-                   maxargs = ?EVAL_MAX_NUM_OF_ARGS,
-                   records = record_attributes(Forms)},
+    Forms0 = [{attribute,L,file,{"foo",L}},
+              {attribute,L,module,foo}, F],
+    {Forms, FormsNoShadows, State} = initiate(Forms0, false),
+    NodeInfo = State#state.node_info,
     Options = [],
-    FormsNoShadows = no_shadows(Forms, State),
-    case compile_messages(Forms, FormsNoShadows, Options, State) of
-        {[],[],_Warnings} ->
-            {NewForms,_State1} = transform(FormsNoShadows, State),
-            {function,L,bar,Ar,[{clause,L,As,[],[NF]}]} = 
-                lists:last(NewForms),
-            {ok,NF};
-        {E0,Errors,_Warnings} when WithLintErrors ->
-            {not_ok,mforms(error, E0 ++ Errors)};
-        {E0,Errors0,_Warnings} ->
-            [{error,Reason} | _] = mforms(error, E0++Errors0),
-            {not_ok, {error, ?APIMOD, Reason}}
+    try compile_messages(Forms, FormsNoShadows, Options, State) of
+        {Errors0,_Warnings} ->
+            case restore_locations(Errors0, State) of
+                [] ->
+                    {NewForms,_State1} = transform(FormsNoShadows, State),
+                    NewForms1 = restore_anno(NewForms, NodeInfo),
+                    {function,L,bar,Ar,[{clause,L,As,[],[NF]}]} =
+                        lists:last(NewForms1),
+                    {ok,NF};
+                Errors when WithLintErrors ->
+                    {not_ok,mforms(error, Errors)};
+                Errors ->
+                    [{error,Reason} | _] = mforms(error, Errors),
+                    {not_ok, {error, ?APIMOD, Reason}}
+            end
+    after
+        true = ets:delete(NodeInfo)
     end.
 
+-ifdef(DEBUG).
+-define(ILIM, 0).
+-else.
+-define(ILIM, 255).
+-endif.
+
+initiate(Forms0, Imported) ->
+    NodeInfo = ets:new(?APIMOD, []),
+    true = ets:insert(NodeInfo, {var_n, ?ILIM}),
+    exclude_integers_from_unique_line_numbers(Forms0, NodeInfo),
+    ?DEBUG("node info0 ~p~n",
+           [lists:sort(ets:tab2list(NodeInfo))]),
+    State0 = #state{imp = Imported,
+                    maxargs = ?EVAL_MAX_NUM_OF_ARGS,
+                    records = record_attributes(Forms0),
+                    node_info = NodeInfo},
+    Forms = save_anno(Forms0, NodeInfo),
+    FormsNoShadows = no_shadows(Forms, State0),
+    IntroVars = intro_variables(FormsNoShadows, State0),
+    State = State0#state{intro_vars = IntroVars},
+    {Forms, FormsNoShadows, State}.
+
+%% Make sure restore_locations() does not confuse integers with (the
+%% unique) line numbers.
+exclude_integers_from_unique_line_numbers(Forms, NodeInfo) ->
+    Integers = find_integers(Forms),
+    lists:foreach(fun(I) -> ets:insert(NodeInfo, {I}) end, Integers).
+
+find_integers(Forms) ->
+    F = fun(A) ->
+                Fs1 = erl_parse:map_anno(fun(_) -> A end, Forms),
+                ordsets:from_list(integers(Fs1, []))
+        end,
+    ordsets:to_list(ordsets:intersection(F(anno0()), F(anno1()))).
+
+integers([E | Es], L) ->
+    integers(Es, integers(E, L));
+integers(T, L) when is_tuple(T) ->
+    integers(tuple_to_list(T), L);
+integers(I, L) when is_integer(I), I > ?ILIM ->
+    [I | L];
+integers(_, L) ->
+    L.
+
 -define(I(I), {integer, L, I}).
 -define(A(A), {atom, L, A}).
 -define(V(V), {var, L, V}).
@@ -164,9 +229,15 @@ mforms(Tag, L) ->
 %% Avoid duplicated lint warnings and lint errors. Care has been taken
 %% not to introduce unused variables in the transformed code.
 %%
-no_duplicates(Forms, Errors, Warnings0, ExtraWarnings, Options) ->
+no_duplicates(Forms, Errors, Warnings0, ExtraWarnings0, Options) ->
     %% Some mistakes such as "{X} =:= {}" are found by strong
     %% validation as well as by qlc. Prefer the warnings from qlc:
+    %%  The Compiler and qlc do not agree on the location of errors.
+    %%  For now, qlc's messages about failing patterns and filters
+    %%  are ignored.
+    ExtraWarnings = [W || W={_File,[{_,qlc,Tag}]} <-
+                              ExtraWarnings0,
+                    not lists:member(Tag, [nomatch_pattern,nomatch_filter])],
     Warnings1 = mforms(Warnings0) --
         ([{File,[{L,v3_core,nomatch}]} ||
              {File,[{L,qlc,M}]} <- mforms(ExtraWarnings),
@@ -185,13 +256,22 @@ mforms(L) ->
     lists:sort([{File,[M]} || {File,Ms} <- L, M <- Ms]).
 
 mforms2(Tag, L) ->
-    Line = 0,
+    Line = anno0(),
     ML = lists:flatmap(fun({File,Ms}) ->
-                               [[{attribute,Line,file,{File,Line}}, {Tag,M}] ||
+                               [[{attribute,Line,file,{File,0}}, {Tag,M}] ||
                                    M <- Ms]
                        end, lists:sort(L)),
     lists:flatten(lists:sort(ML)).
 
+restore_locations([T | Ts], State) ->
+    [restore_locations(T, State) | restore_locations(Ts, State)];
+restore_locations(T, State) when is_tuple(T) ->
+    list_to_tuple(restore_locations(tuple_to_list(T), State));
+restore_locations(I, State) when I > ?ILIM ->
+    restore_loc(I, State);
+restore_locations(T, _State) ->
+    T.
+
 is_qlc_q_imported(Forms) ->
     [[] || {attribute,_,import,{?APIMOD,FAs}} <- Forms, {?Q,1} <- FAs] =/= [].
 
@@ -212,13 +292,20 @@ compile_messages(Forms, FormsNoShadows, Options, State) ->
                (_QId, Q, GA, A) ->
                     {Q,GA,A}
             end,
-    {_,BGens} = qual_fold(BGenF, [], [], FormsNoShadows, State),
+    {_,BGens} = qual_fold(BGenF, [], [], Forms, State),
     GenForm = used_genvar_check(FormsNoShadows, State),
     ?DEBUG("GenForm = ~ts~n", [catch erl_pp:form(GenForm)]),
-    WarnFun = fun(Id, LC, A) -> {tag_lines(LC, get_lcid_no(Id)), A} end,
+    {GEs,_} = compile_forms([GenForm], Options),
+    UsedGenVarMsgs = used_genvar_messages(GEs, State),
+    NodeInfo = State#state.node_info,
+    WarnFun = fun(_Id, LC, A) -> {lc_nodes(LC, NodeInfo), A} end,
     {WForms,ok} = qlc_mapfold(WarnFun, ok, Forms, State),
-    {Es,Ws} = compile_forms(WForms ++ [GenForm], Options),
-    {badarg(Forms, State),tagged_messages(Es)++BGens,tagged_messages(Ws)}.
+    {Es,Ws} = compile_forms(WForms, Options),
+    LcEs = lc_messages(Es, NodeInfo),
+    LcWs = lc_messages(Ws, NodeInfo),
+    Errors = badarg(Forms, State) ++ UsedGenVarMsgs++LcEs++BGens,
+    Warnings = LcWs,
+    {Errors,Warnings}.
 
 badarg(Forms, State) ->
     F = fun(_Id, {lc,_L,_E,_Qs}=LC, Es) -> 
@@ -230,54 +317,39 @@ badarg(Forms, State) ->
     {_,E0} = qlc_mapfold(F, [], Forms, State),
     E0.
 
-tag_lines(E, No) ->
-    map_lines(fun(Id) -> 
-                      case is_lcid(Id) of
-                          true -> Id;
-                          false -> make_lcid(Id, No)
-                      end
-              end, E).
-
-map_lines(F, E) ->
-    erl_lint:modify_line(E, F).
-
-tagged_messages(MsL) ->
-    [{File,
-      [{Loc,Mod,untag(T)} || {Loc0,Mod,T} <- Ms,
-                             {true,Loc} <- [tloc(Loc0)]]}
-     || {File,Ms} <- MsL]
-    ++
+lc_nodes(E, NodeInfo) ->
+    erl_parse:map_anno(fun(Anno) ->
+                               N = erl_anno:line(Anno),
+                               [{N, Data}] = ets:lookup(NodeInfo, N),
+                               NData = Data#{inside_lc => true},
+                               true = ets:insert(NodeInfo, {N, NData}),
+                               Anno
+                       end, E).
+
+used_genvar_messages(MsL, S) ->
     [{File,[{Loc,?APIMOD,{used_generator_variable,V}}]}
-       || {_, Ms} <- MsL, 
+       || {_, Ms} <- MsL,
            {XLoc,erl_lint,{unbound_var,_}} <- Ms,
-           {Loc,File,V} <- [extra(XLoc)]].
-
-tloc({Id,Column}) ->
-    {IsLcid,T} = tloc(Id),
-    {IsLcid,{T,Column}};
-tloc(Id) ->
-    IsLcid = is_lcid(Id),
-    {IsLcid,case IsLcid of
-                true -> get_lcid_line(Id);
-                false -> any
-            end}.
-
-extra({extra,Line,File,V}) ->
-    {Line,File,V};
-extra({Line,Column}) ->
-    case extra(Line) of
-        {L,File,V} -> {{L,Column},File,V};
-        Else -> Else
-    end;
-extra(Else) ->
-    Else.
-
-untag([E | Es]) -> [untag(E) | untag(Es)];
-untag(T) when is_tuple(T) -> list_to_tuple(untag(tuple_to_list(T)));
-untag(E) ->
-    case is_lcid(E) of
-        true -> get_lcid_line(E);
-        false -> E
+           {Loc,File,V} <- [genvar_pos(XLoc, S)]].
+
+lc_messages(MsL, NodeInfo) ->
+    [{File,[{Loc,Mod,T} || {Loc,Mod,T} <- Ms, lc_loc(Loc, NodeInfo)]} ||
+        {File,Ms} <- MsL].
+
+lc_loc(N, NodeInfo) ->
+    case ets:lookup(NodeInfo, N) of
+        [{N, #{inside_lc := true}}] ->
+            true;
+        [{N, _}] ->
+            false
+    end.
+
+genvar_pos(Location, S) ->
+    case ets:lookup(S#state.node_info, Location) of
+        [{Location, #{genvar_pos := Pos}}] ->
+            Pos;
+        [] ->
+            Location
     end.
 
 %% -> [{Qid,[variable()]}].
@@ -293,6 +365,7 @@ untag(E) ->
 %% variables (unless they are unsafe).
 %%
 intro_variables(FormsNoShadows, State) ->
+    NodeInfo = State#state.node_info,
     Fun = fun(QId, {T,_L,P0,_E0}=Q, {GVs,QIds}, Foo) when T =:= b_generate;
                                                           T =:= generate ->
                   PVs = qlc:var_ufold(fun({var,_,V}) -> {QId,V} end, P0),
@@ -302,10 +375,11 @@ intro_variables(FormsNoShadows, State) ->
                   %% where E is an LC expression consisting of a
                   %% template mentioning all variables occurring in F.
                   Vs = ordsets:to_list(qlc:vars(Filter0)),
-                  Id = QId#qid.lcid,
-                  LC1 = embed_vars(intro_set_line({QId,f1}, Vs), Id),
-                  LC2 = embed_vars(intro_set_line({QId,f2}, Vs), Id),
-                  AnyLine = -1,
+                  AnyLine = anno0(),
+                  Vars = [{var,AnyLine,V} || V <- Vs],
+                  LC = embed_vars(Vars, AnyLine),
+                  LC1 = intro_anno(LC, before, QId, NodeInfo),
+                  LC2 = intro_anno(LC, 'after', QId, NodeInfo),
                   Filter = {block,AnyLine,[LC1,Filter0,LC2]},
                   {Filter,{GVs,[{QId,[]} | QIds]},Foo}
           end,
@@ -317,9 +391,15 @@ intro_variables(FormsNoShadows, State) ->
     Es0 = compile_errors(FForms),
     %% A variable is bound inside the filter if it is not bound before
     %% the filter, but it is bound after the filter (obviously).
-    Before = [{QId,V} || {{QId,f1},erl_lint,{unbound_var,V}} <- Es0],
-    After = [{QId,V} || {{QId,f2},erl_lint,{unbound_var,V}} <- Es0],
-    Unsafe = [{QId,V} || {{QId,f2},erl_lint,{unsafe_var,V,_Where}} <- Es0],
+    Before = [{QId,V} ||
+                 {L,erl_lint,{unbound_var,V}} <- Es0,
+                 {_L,{QId,before}} <- ets:lookup(NodeInfo, L)],
+    After = [{QId,V} ||
+                {L,erl_lint,{unbound_var,V}} <- Es0,
+                {_L,{QId,'after'}} <- ets:lookup(NodeInfo, L)],
+    Unsafe = [{QId,V} ||
+                 {L,erl_lint,{unsafe_var,V,_Where}} <- Es0,
+                 {_L,{QId,'after'}} <- ets:lookup(NodeInfo, L)],
     ?DEBUG("Before = ~p~n", [Before]),
     ?DEBUG("After = ~p~n", [After]),
     ?DEBUG("Unsafe = ~p~n", [Unsafe]),
@@ -328,9 +408,14 @@ intro_variables(FormsNoShadows, State) ->
     I1 = family(IV ++ GenVars),
     sofs:to_external(sofs:family_union(sofs:family(QIds), I1)).
 
-intro_set_line(Tag, Vars) ->
-    L = erl_parse:set_line(1, fun(_) -> Tag end),
-    [{var,L,V} || V <- Vars].
+intro_anno(LC, Where, QId, NodeInfo) ->
+    Data = {QId,Where},
+    Fun = fun(Anno) ->
+                  Location = erl_anno:location(Anno),
+                  true = ets:insert(NodeInfo, {Location,Data}),
+                  Anno
+          end,
+    erl_parse:map_anno(Fun, save_anno(LC, NodeInfo)).
 
 compile_errors(FormsNoShadows) ->
     case compile_forms(FormsNoShadows, []) of
@@ -341,11 +426,8 @@ compile_errors(FormsNoShadows) ->
             lists:flatmap(fun({_File,Es}) -> Es end, Errors)
     end.
 
--define(MAX_NUM_OF_LINES, 23). % assume max 1^23 lines (> 8 millions)
-
 compile_forms(Forms0, Options) ->
-    Forms = [F || F <- Forms0, element(1, F) =/= eof] ++ 
-            [{eof,1 bsl ?MAX_NUM_OF_LINES}],
+    Forms = [F || F <- Forms0, element(1, F) =/= eof] ++  [{eof,anno0()}],
     try 
         case compile:noenv_forms(Forms, compile_options(Options)) of
             {ok, _ModName, Ws0} ->
@@ -384,20 +466,23 @@ bitstr_options() ->
 %% for each ListExpr. The expression mentions all introduced variables
 %% occurring in ListExpr. Running the function through the compiler
 %% yields error messages for erroneous use of introduced variables.
-%% The messages have the form
-%% {{extra,LineNo,File,Var},Module,{unbound_var,V}}, where Var is the
-%% original variable name and V is the name invented by no_shadows/2.
 %%
 used_genvar_check(FormsNoShadows, State) ->
-    F = fun(QId, {T, Ln, _P, LE}=Q, {QsIVs0, Exprs0}, IVsSoFar0) 
+    NodeInfo = State#state.node_info,
+    F = fun(QId, {T, Ln, _P, LE}=Q, {QsIVs0, Exprs0}, IVsSoFar0)
                                    when T =:= b_generate; T =:= generate ->
-                F = fun({var, _, V}=Var) -> 
-                            {var, L, OrigVar} = undo_no_shadows(Var),
-                            AF = fun(Line) -> 
-                                         {extra, Line, get(?QLC_FILE), OrigVar}
-                                 end,
-                            L2 = erl_parse:set_line(L, AF),
-                            {var, L2, V} 
+                F = fun(Var) ->
+                            {var, Anno0, OrigVar} =
+                                undo_no_shadows(Var, State),
+                            {var, Anno, _} = NewVar = save_anno(Var, NodeInfo),
+                            Location0 = erl_anno:location(Anno0),
+                            Location = erl_anno:location(Anno),
+                            [{Location, Data}] =
+                                ets:lookup(NodeInfo, Location),
+                            Pos = {Location0,get(?QLC_FILE),OrigVar},
+                            NData = Data#{genvar_pos => Pos},
+                            true = ets:insert(NodeInfo, {Location, NData}),
+                            NewVar
                     end,
                 Vs = [Var || {var, _, V}=Var <- qlc:var_fold(F, [], LE),
                              lists:member(V, IVsSoFar0)],
@@ -411,12 +496,12 @@ used_genvar_check(FormsNoShadows, State) ->
                 {QsIVs, IVsSoFar} = q_intro_vars(QId, QsIVs0, IVsSoFar0),
                 {Filter, {QsIVs, Exprs}, IVsSoFar}
         end,
-    IntroVars = intro_variables(FormsNoShadows, State),
-    Acc0 = {IntroVars, [{atom, 0, true}]},
+    Acc0 = {State#state.intro_vars, [{atom, anno0(), true}]},
     {_, {[], Exprs}} = qual_fold(F, Acc0, [], FormsNoShadows, State),
     FunctionNames = [Name || {function, _, Name, _, _} <- FormsNoShadows],
     UniqueFName = qlc:aux_name(used_genvar, 1, sets:from_list(FunctionNames)),
-    {function,0,UniqueFName,0,[{clause,0,[],[],lists:reverse(Exprs)}]}.
+    A = anno0(),
+    {function,A,UniqueFName,0,[{clause,A,[],[],lists:reverse(Exprs)}]}.
     
 q_intro_vars(QId, [{QId, IVs} | QsIVs], IVsSoFar) -> {QsIVs, IVs ++ IVsSoFar}.
 
@@ -514,7 +599,8 @@ q_intro_vars(QId, [{QId, IVs} | QsIVs], IVsSoFar) -> {QsIVs, IVs ++ IVsSoFar}.
 %%   (calling LEf returns the objects generated by LE).
 
 transform(FormsNoShadows, State) ->
-    IntroVars = intro_variables(FormsNoShadows, State),
+    _ = erlang:system_flag(backtrace_depth, 500),
+    IntroVars = State#state.intro_vars,
     AllVars = sets:from_list(ordsets:to_list(qlc:vars(FormsNoShadows))),
     ?DEBUG("AllVars = ~p~n", [sets:to_list(AllVars)]),
     F1 = fun(QId, {generate,_,P,LE}, Foo, {GoI,SI}) ->
@@ -588,8 +674,8 @@ transform(FormsNoShadows, State) ->
                                             [{match,L,{var,L,Fun},FunC},
                                              {call,L,{var,L,Fun},As0}]}]}},
                  {ok, OrigE0} = dict:find(Id, Source),
-                 OrigE = undo_no_shadows(OrigE0),
-                 QCode = qcode(OrigE, XQCs, Source, L),
+                 OrigE = undo_no_shadows(OrigE0, State),
+                 QCode = qcode(OrigE, XQCs, Source, L, State),
                  Qdata = qdata(XQCs, L),
                  TemplateInfo = 
                      template_columns(Qs, E, AllIVs, Dependencies, State),
@@ -598,7 +684,7 @@ transform(FormsNoShadows, State) ->
                  Opt = opt_info(TemplateInfo, SizeInfo, JoinInfo, MSQs, L,
                                 EqColumnConstants, EqualColumnConstants),
                  LCTuple = 
-                     case qlc_kind(OrigE, Qs) of
+                     case qlc_kind(OrigE, Qs, State) of
                          qlc ->
                              {tuple,L,[?A(qlc_v1),FunW,QCode,Qdata,Opt]};
                          {simple, PL, LE, V} ->
@@ -612,7 +698,7 @@ transform(FormsNoShadows, State) ->
          end,
     {NForms,{[],XW}} = qlc_mapfold(F2, {IntroVars,[]}, ModifiedForms1, State),
     display_forms(NForms),
-    {restore_line_numbers(NForms), State#state{xwarnings = XW}}.
+    {NForms, State#state{xwarnings = XW}}.
 
 join_kind(Qs, LcL, AllIVs, Dependencies, State) ->
     {EqualCols2, EqualColsN} = equal_columns(Qs, AllIVs, Dependencies, State),
@@ -623,20 +709,21 @@ join_kind(Qs, LcL, AllIVs, Dependencies, State) ->
     if 
         EqualColsN =/= []; MatchColsN =/= [] -> 
             {[], 
-             [{get(?QLC_FILE),[{abs(LcL),?APIMOD,too_complex_join}]}]};
+             [{get(?QLC_FILE),[{LcL,?APIMOD,too_complex_join}]}]};
         EqualCols2 =:= [], MatchCols2 =:= [] ->
             {[], []};
         length(Tables) > 2 -> 
             {[], 
-             [{get(?QLC_FILE),[{abs(LcL),?APIMOD,too_many_joins}]}]};
+             [{get(?QLC_FILE),[{LcL,?APIMOD,too_many_joins}]}]};
         EqualCols2 =:= MatchCols2 ->
             {EqualCols2, []};
         true -> 
             {{EqualCols2, MatchCols2}, []}
     end.
 
-qlc_kind(OrigE, Qs) ->
-    {OrigFilterData, OrigGeneratorData} = qual_data(undo_no_shadows(Qs)),
+qlc_kind(OrigE, Qs, State) ->
+    {OrigFilterData, OrigGeneratorData} =
+        qual_data(undo_no_shadows(Qs, State)),
     OrigAllFilters = filters_as_one(OrigFilterData),
     {_FilterData, GeneratorData} = qual_data(Qs),
     case {OrigE, OrigAllFilters, OrigGeneratorData} of
@@ -663,12 +750,12 @@ warn_failing_qualifiers(Qualifiers, AllIVs, Dependencies, State) ->
         lists:foldl(fun({_QId,{fil,_Filter}}, {[]=Frames,Warnings}) ->
                             {Frames,Warnings};
                        ({_QId,{fil,Filter}}, {Frames,Warnings}) ->
-                        case filter(set_line(Filter, 0), Frames, BindFun, 
+                        case filter(reset_anno(Filter), Frames, BindFun,
                                     State, Imported) of
                             [] ->
                                 {[],
                                  [{get(?QLC_FILE),
-                                   [{abs_loc(element(2, Filter)),?APIMOD,
+                                   [{loc(element(2, Filter)),?APIMOD,
                                      nomatch_filter}]} | Warnings]};
                             Frames1 -> 
                                 {Frames1,Warnings}
@@ -678,7 +765,7 @@ warn_failing_qualifiers(Qualifiers, AllIVs, Dependencies, State) ->
                             {failed, _, _} -> 
                                 {Frames,
                                  [{get(?QLC_FILE),
-                                   [{abs_loc(element(2, Pattern)),?APIMOD,
+                                   [{loc(element(2, Pattern)),?APIMOD,
                                      nomatch_pattern}]} | Warnings]};
                             _ ->
                                 {Frames,Warnings}
@@ -751,8 +838,8 @@ opt_constants(L, ColumnConstants) ->
      || IdNo <- Ns]
      ++ [{clause,L,[?V('_')],[],[?A(no_column_fun)]}].
 
-abstr(Term, Line) ->
-    erl_parse:abstract(Term, Line).
+abstr(Term, Anno) ->
+    erl_parse:abstract(Term, loc(Anno)).
 
 %% Extra generators are introduced for join.
 join_quals(JoinInfo, QCs, L, LcNo, ExtraConstants, AllVars) ->
@@ -837,9 +924,10 @@ join_handle(AP, L, [F, H, O, C], Constants) ->
         {{var, _, _}, []} ->
             {'fun',L,{clauses,[{clause,L,[H],[],[H]}]}};
         _ ->
+            A = anno0(),
             G0 = [begin
-                      Call = {call,0,{atom,0,element},[{integer,0,Col},O]},
-                      list2op([{op,0,Op,Con,Call} || {Con,Op} <- Cs], 'or')
+                      Call = {call,A,{atom,A,element},[{integer,A,Col},O]},
+                      list2op([{op,A,Op,Con,Call} || {Con,Op} <- Cs], 'or')
                   end || {Col,Cs} <- Constants],
             G = if G0 =:= [] -> G0; true -> [G0] end,
             CC1 = {clause,L,[AP],G,[{cons,L,O,closure({call,L,F,[F,C]},L)}]},
@@ -876,14 +964,15 @@ join_handle_constants(QId, ExtraConstants) ->
 %% order the traverse fun would return them.
 
 column_fun(Columns, QualifierNumber, LcL) ->
+    A = anno0(),
     ColCls0 = 
         [begin
              true = Vs0 =/= [], % at least one value to look up
              Vs1 = list2cons(Vs0),
-             Fils1 = {tuple,0,[{atom,0,FTag},
+             Fils1 = {tuple,A,[{atom,A,FTag},
                                lists:foldr
-                                   (fun(F, A) -> {cons,0,{integer,0,F},A} 
-                                    end, {nil,0}, Fils)]},
+                                   (fun(F, Ac) -> {cons,A,{integer,A,F},Ac}
+                                    end, {nil,A}, Fils)]},
              Tag = case ordsets:to_list(qlc:vars(Vs1)) of
                        Imp when length(Imp) > 0, % imported vars
                                 length(Vs0) > 1 ->
@@ -891,13 +980,13 @@ column_fun(Columns, QualifierNumber, LcL) ->
                        _ ->
                            values
                    end,
-             Vs = {tuple,0,[{atom,0,Tag},Vs1,Fils1]},
-             {clause,0,[erl_parse:abstract(Col)],[],[Vs]}
+             Vs = {tuple,A,[{atom,A,Tag},Vs1,Fils1]},
+             {clause,A,[erl_parse:abstract(Col)],[],[Vs]}
          end ||
             {{CIdNo,Col}, Vs0, {FTag,Fils}} <- Columns,
             CIdNo =:= QualifierNumber]
-        ++ [{clause,0,[{var,0,'_'}],[],[{atom,0,false}]}],
-    ColCls = set_line(ColCls0, LcL),
+        ++ [{clause,A,[{var,A,'_'}],[],[{atom,A,false}]}],
+    ColCls = set_anno(ColCls0, LcL),
     {'fun', LcL, {clauses, ColCls}}.
 
 %% Tries to find columns of the template that (1) are equal to (or
@@ -920,7 +1009,7 @@ template_columns(Qs0, E0, AllIVs, Dependencies, State) ->
     MatchColumns = eq_columns2(Qs, AllIVs, Dependencies, State),
     Equal = template_cols(EqualColumns), 
     Match = template_cols(MatchColumns),
-    L = 0,
+    L = anno0(),
     if 
         Match =:= Equal -> 
             [{?V('_'), Match}];
@@ -947,7 +1036,7 @@ template_cols(ColumnClasses) ->
 
 template_as_pattern(E) ->
     P = simple_template(E),
-    {?TID,foo,foo,{gen,P,{nil,0}}}.
+    {?TID,foo,foo,{gen,P,{nil,anno0()}}}.
 
 simple_template({call,L,{remote,_,{atom,_,erlang},{atom,_,element}}=Call,
                  [{integer,_,I}=A1,A2]}) when I > 0 ->
@@ -1004,10 +1093,10 @@ match_spec_quals(Template, Dependencies, Qualifiers, State) ->
                      GQId =:= QId2,
                      {FQId,{fil,F}}=Filter <- Filters, % guard filters only
                      FQId =:= QId] 
-               ++ [{GId#qid.no,Pattern,[],{atom,0,true}} || 
+               ++ [{GId#qid.no,Pattern,[],{atom,anno0(),true}} ||
                       {GId,{gen,Pattern,_}} <- GeneratorData,
                       lists:member(GId, NoFilterGIds)],
-    E = {nil, 0},
+    E = {nil, anno0()},
     GF = [{{GNum,Pattern},Filter} || 
              {GNum,Pattern,Filter,F} <- Candidates,
              no =/= try_ms(E, Pattern, F, State)],
@@ -1024,7 +1113,7 @@ match_spec_quals(Template, Dependencies, Qualifiers, State) ->
         %% expressione can be replaced by a match specification.
         [{GNum, AbstrMS, all}]
     catch _:_ ->
-        {TemplVar, _} = anon_var({var,0,'_'}, 0),
+        {TemplVar, _} = anon_var({var,anno0(),'_'}, 0),
         [one_gen_match_spec(GNum, Pattern, GFilterData, State, TemplVar) ||
             {{GNum,Pattern},GFilterData} <- GFFL]
     end.
@@ -1038,7 +1127,7 @@ gen_ms(E, Pattern, GFilterData, State) ->
     {ok, MS, AMS} = try_ms(E, Pattern, filters_as_one(GFilterData), State),
     case MS of
         [{'$1',[true],['$1']}] ->
-            {atom, 0, no_match_spec};
+            {atom, anno0(), no_match_spec};
         _ ->
             AMS
     end.
@@ -1060,7 +1149,7 @@ pattern_as_template({match,_,_E,{var,_,_}=V}=P, _TemplVar) ->
 pattern_as_template({match,_,{var,_,_}=V,_E}=P, _TemplVar) ->
     {V, P};
 pattern_as_template(E, TemplVar) ->
-    L = 0,
+    L = anno0(),
     {TemplVar, {match, L, E, TemplVar}}.
 
 %% Tries to find columns which are compared or matched against
@@ -1203,7 +1292,7 @@ lu_skip(ColConstants, FilterData, PatternFrame, PatternVars,
     ColFil = [{Column, FId#qid.no} ||
                  {FId,{fil,Fil}} <- 
                      filter_list(FilterData, Dependencies, State),
-                 [] =/= (SFs = safe_filter(set_line(Fil, 0), PatternFrames,
+                 [] =/= (SFs = safe_filter(reset_anno(Fil), PatternFrames,
                                            BindFun, State, Imported)),
                  {GId,PV} <- PatternVars,
                  [] =/= 
@@ -1392,7 +1481,7 @@ join_skip(JoinClasses, FilterData, PatternFrame, PatternVars, Dependencies,
                      JF = unify(JoinOp, V1, V2, JF2, BindFun, Imported),
 
                      %% "Run" the filter:
-                     SFs = safe_filter(set_line(Fil, 0), PatternFrames,
+                     SFs = safe_filter(reset_anno(Fil), PatternFrames,
                                        BindFun, State, Imported),
                      JImp = qlc:vars([SFs, JF]), % kludge
                      lists:all(fun(Frame) -> 
@@ -1403,7 +1492,7 @@ join_skip(JoinClasses, FilterData, PatternFrame, PatternVars, Dependencies,
 
 filter_info(FilterData, AllIVs, Dependencies, State) ->
     FilterList = filter_list(FilterData, Dependencies, State),
-    Filter0 = set_line(filters_as_one(FilterList), 0),
+    Filter0 = reset_anno(filters_as_one(FilterList)),
     Anon0 = 0,
     {Filter, Anon1} = anon_var(Filter0, Anon0),
     Imported = ordsets:subtract(qlc:vars(Filter), % anonymous too
@@ -1510,7 +1599,7 @@ pattern(P0, AnonI, Frame0, BindFun, State) ->
          catch _:_ -> P0 % template, records already expanded
          end,
     %% Makes test for equality simple:
-    P2 = set_line(P1, 0),
+    P2 = reset_anno(P1),
     {P3, AnonN} = anon_var(P2, AnonI),
     {P4, F1} = match_in_pattern(tuple2cons(P3), Frame0, BindFun),
     {P, F2} = element_calls(P4, F1, BindFun, _Imp=[]), % kludge for templates
@@ -1550,8 +1639,11 @@ anon_var(E, AnonI) ->
                    (Var, N) -> {Var, N}
                 end, AnonI, E).
 
-set_line(T, L) ->
-    map_lines(fun(_L) -> L end, T).
+reset_anno(T) ->
+    set_anno(T, anno0()).
+
+set_anno(T, A) ->
+    erl_parse:map_anno(fun(_L) -> A end, T).
 
 -record(fstate, {state, bind_fun, imported}).
 
@@ -1673,7 +1765,7 @@ frames_to_columns(Fs, PatternVars, DerefFun, SelectorFun, Imp, CompOp) ->
     %% same variables have to be the representatives in every frame.)
     SizesVarsL =
         [begin 
-             PatVar = {var,0,PV},
+             PatVar = {var,anno0(),PV},
              PatternSizes = [pattern_size([F], PatVar, false) || 
                                 F <- Fs],
              MaxPZ = lists:max([0 | PatternSizes -- [undefined]]),
@@ -1692,8 +1784,8 @@ frames_to_columns(Fs, PatternVars, DerefFun, SelectorFun, Imp, CompOp) ->
 frames2cols(Fs, PatN, PatSizes, Vars, DerefFun, SelectorFun, CompOp) ->
     Rs = [ begin
                RL = [{{PatN,Col},cons2tuple(element(2, Const))} ||
-                        {V, Col} <- lists:zip(sublist(Vars, PatSz),
-                                              seq(1, PatSz)),
+                        {V, Col} <- lists:zip(lists:sublist(Vars, PatSz),
+                                              lists:seq(1, PatSz)),
                         %% Do not handle the case where several
                         %% values compare equal, e.g. "X =:= 1
                         %% andalso X == 1.0". Looking up both
@@ -1722,11 +1814,11 @@ frames2cols(Fs, PatN, PatSizes, Vars, DerefFun, SelectorFun, CompOp) ->
     [C || {_,Vs}=C <- sofs:to_external(Cs), not col_ignore(Vs, CompOp)].
 
 pat_vars(N) ->
-    [unique_var() || _ <- seq(1, N)].
+    [unique_var() || _ <- lists:seq(1, N)].
 
 pat_tuple(Sz, Vars) when is_integer(Sz), Sz > 0 ->
     TupleTail = unique_var(),
-    {cons_tuple, list2cons(sublist(Vars, Sz) ++ TupleTail)};
+    {cons_tuple, list2cons(lists:sublist(Vars, Sz) ++ TupleTail)};
 pat_tuple(_, _Vars) ->
     unique_var().
 
@@ -1740,7 +1832,7 @@ col_ignore(Vs, '==') ->
 pattern_sizes(PatternVars, Fs) ->
     [{QId#qid.no, Size} || 
         {QId,PV} <- PatternVars,
-        undefined =/= (Size = pattern_size(Fs, {var,0,PV}, true))].
+        undefined =/= (Size = pattern_size(Fs, {var,anno0(),PV}, true))].
 
 pattern_size(Fs, PatternVar, Exact) ->
     Fun = fun(F) -> (deref_pattern(_Imported = []))(PatternVar, F) end,
@@ -1768,7 +1860,8 @@ prep_expr(E, F, S, BF, Imported) ->
     element_calls(tuple2cons(expand_expr_records(E, S)), F, BF, Imported).
 
 unify_column(Frame, Var, Col, BindFun, Imported) ->
-    Call = {call,0,{atom,0,element},[{integer,0,Col}, {var,0,Var}]},
+    A = anno0(),
+    Call = {call,A,{atom,A,element},[{integer,A,Col}, {var,A,Var}]},
     element_calls(Call, Frame, BindFun, Imported).
 
 %% cons_tuple is used for representing {V1, ..., Vi | TupleTail}.
@@ -1800,19 +1893,21 @@ element_calls(E, F, _BF, _Imported) ->
     {E, F}.
 
 unique_var() ->
-    {var, 0, make_ref()}.
+    {var, anno0(), make_ref()}.
 
 is_unique_var({var, _L, V}) ->
     is_reference(V).
 
 expand_pattern_records(P, State) ->
-    E = {'case',0,{atom,0,true},[{clause,0,[P],[],[{atom,0,true}]}]},
-    {'case',_,_,[{clause,0,[NP],_,_}]} = expand_expr_records(E, State),
+    A = anno0(),
+    E = {'case',A,{atom,A,true},[{clause,A,[P],[],[{atom,A,true}]}]},
+    {'case',_,_,[{clause,A,[NP],_,_}]} = expand_expr_records(E, State),
     NP.
 
 expand_expr_records(E, State) ->
     RecordDefs = State#state.records,
-    Forms = RecordDefs ++ [{function,1,foo,0,[{clause,1,[],[],[pe(E)]}]}],
+    A = anno1(),
+    Forms = RecordDefs ++ [{function,A,foo,0,[{clause,A,[],[],[pe(E)]}]}],
     [{function,_,foo,0,[{clause,_,[],[],[NE]}]}] = 
         erl_expand_records:module(Forms, [no_strict_record_tests]),
     NE.
@@ -2126,15 +2221,15 @@ tuple2cons(E) ->
     E.
 
 list2cons([E | Es]) ->
-    {cons, 0, E, list2cons(Es)};
+    {cons, anno0(), E, list2cons(Es)};
 list2cons([]) ->
-    {nil, 0};
+    {nil, anno0()};
 list2cons(E) ->
     E.
 
 %% Returns {..., Variable} if Variable is a tuple tail.
 cons2tuple({cons_tuple, Es}) ->
-    {tuple, 0, cons2list(Es)};
+    {tuple, anno0(), cons2list(Es)};
 cons2tuple(T) when is_tuple(T) ->
     list_to_tuple(cons2tuple(tuple_to_list(T)));
 cons2tuple([E | Es]) ->
@@ -2173,11 +2268,10 @@ bindings_subset(F1, F2, Imp) ->
 %% not to have guard semantics, affected filters will have to be
 %% recognized and excluded here as well.
 try_ms(E, P, Fltr, State) ->
-    L = 1,
+    L = anno1(),
     Fun =  {'fun',L,{clauses,[{clause,L,[P],[[Fltr]],[E]}]}},
     Expr = {call,L,{remote,L,{atom,L,ets},{atom,L,fun2ms}},[Fun]},
-    Form0 = {function,L,foo,0,[{clause,L,[],[],[Expr]}]},
-    Form = restore_line_numbers(Form0),
+    Form = {function,L,foo,0,[{clause,L,[],[],[Expr]}]},
     X = ms_transform:parse_transform(State#state.records ++ [Form], []),
     case catch 
         begin
@@ -2194,11 +2288,11 @@ try_ms(E, P, Fltr, State) ->
     end.
 
 filters_as_one([]) ->
-    {atom, 0, true};
+    {atom, anno0(), true};
 filters_as_one(FilterData) ->
     [{_,{fil,Filter1}} | Filters] = lists:reverse(FilterData),
     lists:foldr(fun({_QId,{fil,Filter}}, AbstF) ->
-                        {op,0,'andalso',Filter,AbstF}
+                        {op,anno0(),'andalso',Filter,AbstF}
                 end, Filter1, Filters).
 
 qual_data(Qualifiers) ->
@@ -2233,38 +2327,40 @@ qdata([], L) ->
     {nil,L}.
 
 qcon(Cs) ->
-    list2cons([{tuple,0,[{integer,0,Col},list2cons(qcon1(ConstOps))]} || 
+    A = anno0(),
+    list2cons([{tuple,A,[{integer,A,Col},list2cons(qcon1(ConstOps))]} ||
                   {Col,ConstOps} <- Cs]).
 
 qcon1(ConstOps) ->
-    [{tuple,0,[Const,abstr(Op, 0)]} || {Const,Op} <- ConstOps].
+    A = anno0(),
+    [{tuple,A,[Const,abstr(Op, A)]} || {Const,Op} <- ConstOps].
 
 %% The original code (in Source) is used for filters and the template
 %% since the translated code can have QLCs and we don't want them to
 %% be visible.
-qcode(E, QCs, Source, L) ->
+qcode(E, QCs, Source, L, State) ->
     CL = [begin
               Bin = term_to_binary(C, [compressed]),
               {bin, L, [{bin_element, L, 
                          {string, L, binary_to_list(Bin)},
                          default, default}]}
           end || {_,C} <- lists:keysort(1, [{qlc:template_state(),E} | 
-                                            qcode(QCs, Source)])],
+                                            qcode(QCs, Source, State)])],
     {'fun', L, {clauses, [{clause, L, [], [], [{tuple, L, CL}]}]}}.
 
-qcode([{_QId, {_QIvs, {{gen,P,_LE,_GV}, GoI, _SI}}} | QCs], Source) ->
-    [{GoI,undo_no_shadows(P)} | qcode(QCs, Source)];
-qcode([{QId, {_QIVs, {{fil,_F}, GoI, _SI}}} | QCs], Source) ->
+qcode([{_QId, {_QIvs, {{gen,P,_LE,_GV}, GoI, _SI}}} | QCs], Source, State) ->
+    [{GoI,undo_no_shadows(P, State)} | qcode(QCs, Source, State)];
+qcode([{QId, {_QIVs, {{fil,_F}, GoI, _SI}}} | QCs], Source, State) ->
     {ok,OrigF} = dict:find(QId, Source),
-    [{GoI,undo_no_shadows(OrigF)} | qcode(QCs, Source)];
-qcode([], _Source) ->
+    [{GoI,undo_no_shadows(OrigF, State)} | qcode(QCs, Source, State)];
+qcode([], _Source, _State) ->
     [].
 
 closure(Code, L) ->
     {'fun',L,{clauses,[{clause,L,[],[],[Code]}]}}.
 
-simple(L, Var, Init, Line) ->
-    {tuple,L,[?A(simple_v1),?A(Var),Init,?I(Line)]}.
+simple(L, Var, Init, Anno) ->
+    {tuple,L,[?A(simple_v1),?A(Var),Init,abstr(loc(Anno), Anno)]}.
 
 clauses([{QId,{QIVs,{QualData,GoI,S}}} | QCs], RL, Fun, Go, NGV, E, IVs,St) ->
     ?DEBUG("QIVs = ~p~n", [QIVs]),
@@ -2426,19 +2522,22 @@ aux_var(Name, LcN, QN, N, AllVars) ->
     qlc:aux_name(lists:concat([Name, LcN, '_', QN, '_']), N, AllVars).
 
 no_compiler_warning(L) ->
-    erl_parse:set_line(L, fun(Line) -> -abs(Line) end).
+    Anno = erl_anno:new(L),
+    erl_anno:set_generated(true, Anno).
 
-abs_loc(L) ->
-    loc(erl_parse:set_line(L, fun(Line) -> abs(Line) end)).
-
-loc(L) ->
-    {location,Location} = erl_parse:get_attribute(L, location),
-    Location.
+loc(A) ->
+    erl_anno:location(A).
 
 list2op([E], _Op) ->
     E;
 list2op([E | Es], Op) ->
-    {op,0,Op,E,list2op(Es, Op)}.
+    {op,anno0(),Op,E,list2op(Es, Op)}.
+
+anno0() ->
+    erl_anno:new(0).
+
+anno1() ->
+    erl_anno:new(1).
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
@@ -2491,13 +2590,61 @@ qlcmf(T, _F, _Imp, A, No) ->
 occ_vars(E) ->
     qlc:var_fold(fun({var,_L,V}) -> V end, [], E).
 
+%% Every Anno is replaced by a unique number. The number is used in a
+%% table that holds data about the abstract node where Anno resides.
+%% In particular, the original location is kept there, so that the
+%% original abstract code can be re-created.
+save_anno(Abstr, NodeInfo) ->
+    F = fun(Anno) ->
+                N = next_slot(NodeInfo),
+                Location = erl_anno:location(Anno),
+                Data = {N, #{location => Location}},
+                true = ets:insert(NodeInfo, Data),
+                erl_anno:new(N)
+        end,
+    erl_parse:map_anno(F, Abstr).
+
+next_slot(T) ->
+    I = ets:update_counter(T, var_n, 1),
+    case ets:lookup(T, I) of
+        [] ->
+            I;
+        _ ->
+            next_slot(T)
+    end.
+
+restore_anno(Abstr, NodeInfo) ->
+    F = fun(Anno) ->
+                Location = erl_anno:location(Anno),
+                case ets:lookup(NodeInfo, Location) of
+                    [{Location, Data}] ->
+                        OrigLocation = maps:get(location, Data),
+                        erl_anno:set_location(OrigLocation, Anno);
+                    [{Location}] -> % generated code
+                        Anno;
+                    [] ->
+                        Anno
+                end
+        end,
+    erl_parse:map_anno(F, Abstr).
+
+restore_loc(Location, #state{node_info = NodeInfo}) ->
+  case ets:lookup(NodeInfo, Location) of
+      [{Location, #{location := OrigLocation}}] ->
+          OrigLocation;
+      [{Location}] ->
+          Location;
+      [] ->
+          Location
+  end.
+
 no_shadows(Forms0, State) ->
     %% Variables that may shadow other variables are introduced in
     %% LCs and Funs. Such variables (call them SV, Shadowing
     %% Variables) are now renamed. Each (new) occurrence in a pattern
     %% is assigned an index (integer), unique in the file. 
     %%
-    %% The state {LastIndex,ActiveVars,UsedVars,AllVars,Singletons}
+    %% The state {LastIndex,ActiveVars,UsedVars,AllVars,Singletons,State}
     %% holds the last index used for each SV (LastIndex), the SVs in
     %% the current scope (ActiveVars), used SVs (UsedVars, the indexed
     %% name is the key), all variables occurring in the file
@@ -2507,16 +2654,15 @@ no_shadows(Forms0, State) ->
     %% the indexed name of an SV occurs in the file, next index is
     %% tried (to avoid mixing up introduced names with existing ones).
     %%
-    %% The original names of variables are kept in the line number
-    %% position of the abstract code: {var, {nos, OriginalName, L},
-    %% NewName}. undo_no_shadows/1 re-creates the original code.
+    %% The original names of variables are kept in a table in State.
+    %% undo_no_shadows/2 re-creates the original code.
     AllVars = sets:from_list(ordsets:to_list(qlc:vars(Forms0))),
     ?DEBUG("nos AllVars = ~p~n", [sets:to_list(AllVars)]),
     VFun = fun(_Id, LC, Vs) -> nos(LC, Vs) end,
     LI = ets:new(?APIMOD,[]),
     UV = ets:new(?APIMOD,[]),
     D0 = dict:new(),
-    S1 = {LI, D0, UV, AllVars, []},
+    S1 = {LI, D0, UV, AllVars, [], State},
     _ = qlc_mapfold(VFun, S1, Forms0, State),
     ?DEBUG("UsedIntroVars = ~p~n", [ets:match_object(UV, '_')]),
     Singletons = ets:select(UV, ets:fun2ms(fun({K,0}) -> K  end)),
@@ -2524,7 +2670,7 @@ no_shadows(Forms0, State) ->
     true = ets:delete_all_objects(LI),
     true = ets:delete_all_objects(UV),
     %% Do it again, this time we know which variables are singletons.
-    S2 = {LI, D0, UV, AllVars, Singletons},
+    S2 = {LI, D0, UV, AllVars, Singletons, State},
     {Forms,_} = qlc_mapfold(VFun, S2, Forms0, State),
     true = ets:delete(LI),
     true = ets:delete(UV),
@@ -2568,11 +2714,11 @@ nos({lc,L,E0,Qs0}, S) ->
     {Qs, S1} = lists:mapfoldl(F, S, Qs0),
     {E, _} = nos(E0, S1),
     {{lc,L,E,Qs}, S};
-nos({var,L,V}=Var, {_LI,Vs,UV,_A,_Sg}=S) when V =/= '_' ->
+nos({var,L,V}=Var, {_LI,Vs,UV,_A,_Sg,State}=S) when V =/= '_' ->
     case used_var(V, Vs, UV) of
         {true, VN} ->
-            NL = nos_var(L, V),
-            {{var,NL,VN}, S};
+            nos_var(L, V, State),
+            {{var,L,VN}, S};
         false ->
             {Var, S}
     end;
@@ -2590,7 +2736,7 @@ nos_pattern([P0 | Ps0], S0, PVs0) ->
     {P, S1, PVs1} = nos_pattern(P0, S0, PVs0),
     {Ps, S, PVs} = nos_pattern(Ps0, S1, PVs1),
     {[P | Ps], S, PVs};
-nos_pattern({var,L,V}, {LI,Vs0,UV,A,Sg}, PVs0) when V =/= '_' ->
+nos_pattern({var,L,V}, {LI,Vs0,UV,A,Sg,State}, PVs0) when V =/= '_' ->
     {Name, Vs, PVs} = 
         case lists:keyfind(V, 1, PVs0) of
             {V, VN} ->
@@ -2604,16 +2750,25 @@ nos_pattern({var,L,V}, {LI,Vs0,UV,A,Sg}, PVs0) when V =/= '_' ->
                     end,
                 {N, Vs1, [{V,VN} | PVs0]}
         end,
-    NL = nos_var(L, V),
-    {{var,NL,Name}, {LI,Vs,UV,A,Sg}, PVs};
+    nos_var(L, V, State),
+    {{var,L,Name}, {LI,Vs,UV,A,Sg,State}, PVs};
 nos_pattern(T, S0, PVs0) when is_tuple(T) ->
     {TL, S, PVs} = nos_pattern(tuple_to_list(T), S0, PVs0),
     {list_to_tuple(TL), S, PVs};
 nos_pattern(T, S, PVs) ->
     {T, S, PVs}.
 
-nos_var(L, Name) ->
-    erl_parse:set_line(L, fun(Line) -> {nos,Name,Line} end).
+nos_var(Anno, Name, State) ->
+    NodeInfo = State#state.node_info,
+    Location = erl_anno:location(Anno),
+    case ets:lookup(NodeInfo, Location) of
+        [{Location, #{name := _}}] ->
+            true;
+        [{Location, Data}] ->
+            true = ets:insert(NodeInfo, {Location, Data#{name => Name}});
+        [] -> % cannot happen
+            true
+    end.
 
 used_var(V, Vs, UV) ->
     case dict:find(V, Vs) of
@@ -2638,69 +2793,30 @@ next_var(V, Vs, AllVars, LI, UV) ->
                  {VN, NVs}
     end.
 
-undo_no_shadows(E) ->
-    var_map(fun undo_no_shadows1/1, E).
-
-undo_no_shadows1({var, L, _}=Var) ->
-    case erl_parse:get_attribute(L, line) of
-        {line,{nos,V,_VL}} ->
-            NL = erl_parse:set_line(L, fun({nos,_V,VL}) -> VL end),
-            undo_no_shadows1({var, NL, V});
-        _Else ->
-            Var
-    end.
-
-restore_line_numbers(E) ->
-    var_map(fun restore_line_numbers1/1, E).
+undo_no_shadows(E, State) ->
+    var_map(fun(Anno) -> undo_no_shadows1(Anno, State) end, E).
 
-restore_line_numbers1({var, L, V}=Var) ->
-    case erl_parse:get_attribute(L, line) of
-        {line,{nos,_,_}} ->
-            NL = erl_parse:set_line(L, fun({nos,_V,VL}) -> VL end),
-            restore_line_numbers1({var, NL, V});
-        _Else ->
+undo_no_shadows1({var, Anno, _}=Var, State) ->
+    Location = erl_anno:location(Anno),
+    NodeInfo = State#state.node_info,
+    case ets:lookup(NodeInfo, Location) of
+        [{Location, #{name := Name}}] ->
+            {var, Anno, Name};
+        _ ->
             Var
     end.
 
 %% QLC identifier. 
 %% The first one encountered in the file has No=1.
 
-make_lcid(Attrs, No) when is_integer(No), No > 0 ->
-    F = fun(Line) when is_integer(Line), Line < (1 bsl ?MAX_NUM_OF_LINES) ->
-                sgn(Line) * ((No bsl ?MAX_NUM_OF_LINES) + sgn(Line) * Line)
-        end,
-    erl_parse:set_line(Attrs, F).
-
-is_lcid(Attrs) ->
-    try 
-        {line,Id} = erl_parse:get_attribute(Attrs, line),
-        is_integer(Id) andalso (abs(Id) > (1 bsl ?MAX_NUM_OF_LINES))
-    catch _:_ ->
-        false
-    end.
-
-get_lcid_no(IdAttrs) ->
-    {line,Id} = erl_parse:get_attribute(IdAttrs, line),
-    abs(Id) bsr ?MAX_NUM_OF_LINES.    
-
-get_lcid_line(IdAttrs) ->
-    {line,Id} = erl_parse:get_attribute(IdAttrs, line),
-    sgn(Id) * (abs(Id) band ((1 bsl ?MAX_NUM_OF_LINES) - 1)).
+make_lcid(Anno, No) when is_integer(No), No > 0 ->
+    {No, erl_anno:line(Anno)}.
 
-sgn(X) when X >= 0 ->
-    1;
-sgn(X) when X < 0 ->
-    -1.
+get_lcid_no({No, _Line}) ->
+    No.
 
-seq(S, E) when S - E =:= 1 ->
-    [];
-seq(S, E) -> 
-    lists:seq(S, E).
-
-sublist(_, 0) ->
-    [];
-sublist(L, N) ->
-    lists:sublist(L, N).
+get_lcid_line({_No, Line}) ->
+    Line.
 
 qid(LCId, No) ->
     #qid{no = No, lcid = LCId}.
diff --git a/lib/stdlib/src/rand.erl b/lib/stdlib/src/rand.erl
new file mode 100644
index 0000000000..6a805eb69e
--- /dev/null
+++ b/lib/stdlib/src/rand.erl
@@ -0,0 +1,591 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%% =====================================================================
+%% Multiple PRNG module for Erlang/OTP
+%% Copyright (c) 2015 Kenji Rikitake
+%% =====================================================================
+
+-module(rand).
+
+-export([seed_s/1, seed_s/2, seed/1, seed/2,
+	 export_seed/0, export_seed_s/1,
+         uniform/0, uniform/1, uniform_s/1, uniform_s/2,
+	 normal/0, normal_s/1
+	]).
+
+-compile({inline, [exs64_next/1, exsplus_next/1,
+		   exs1024_next/1, exs1024_calc/2,
+		   get_52/1, normal_kiwi/1]}).
+
+-define(DEFAULT_ALG_HANDLER, exsplus).
+-define(SEED_DICT, rand_seed).
+
+%% =====================================================================
+%% Types
+%% =====================================================================
+
+%% This depends on the algorithm handler function
+-type alg_seed() :: exs64_state() | exsplus_state() | exs1024_state().
+%% This is the algorithm handler function within this module
+-type alg_handler() :: #{type      => alg(),
+			 max       => integer(),
+			 next      => fun(),
+			 uniform   => fun(),
+			 uniform_n => fun()}.
+
+%% Internal state
+-opaque state() :: {alg_handler(), alg_seed()}.
+-type alg() :: exs64 | exsplus | exs1024.
+-opaque export_state() :: {alg(), alg_seed()}.
+-export_type([alg/0, state/0, export_state/0]).
+
+%% =====================================================================
+%% API
+%% =====================================================================
+
+%% Return algorithm and seed so that RNG state can be recreated with seed/1
+-spec export_seed() -> undefined | export_state().
+export_seed() ->
+    case seed_get() of
+	{#{type:=Alg}, Seed} -> {Alg, Seed};
+	_ -> undefined
+    end.
+
+-spec export_seed_s(state()) -> export_state().
+export_seed_s({#{type:=Alg}, Seed}) -> {Alg, Seed}.
+
+%% seed(Alg) seeds RNG with runtime dependent values
+%% and return the NEW state
+
+%% seed({Alg,Seed}) setup RNG with a previously exported seed
+%% and return the NEW state
+
+-spec seed(AlgOrExpState::alg() | export_state()) -> state().
+seed(Alg) ->
+    R = seed_s(Alg),
+    _ = seed_put(R),
+    R.
+
+-spec seed_s(AlgOrExpState::alg() | export_state()) -> state().
+seed_s(Alg) when is_atom(Alg) ->
+    seed_s(Alg, {erlang:phash2([{node(),self()}]),
+		 erlang:system_time(),
+		 erlang:unique_integer()});
+seed_s({Alg0, Seed}) ->
+    {Alg,_SeedFun} = mk_alg(Alg0),
+    {Alg, Seed}.
+
+%% seed/2: seeds RNG with the algorithm and given values
+%% and returns the NEW state.
+
+-spec seed(Alg :: alg(), {integer(), integer(), integer()}) -> state().
+seed(Alg0, S0) ->
+    State = seed_s(Alg0, S0),
+    _ = seed_put(State),
+    State.
+
+-spec seed_s(Alg :: alg(), {integer(), integer(), integer()}) -> state().
+seed_s(Alg0, S0 = {_, _, _}) ->
+    {Alg, Seed} = mk_alg(Alg0),
+    AS = Seed(S0),
+    {Alg, AS}.
+
+%%% uniform/0, uniform/1, uniform_s/1, uniform_s/2 are all
+%%% uniformly distributed random numbers.
+
+%% uniform/0: returns a random float X where 0.0 < X < 1.0,
+%% updating the state in the process dictionary.
+
+-spec uniform() -> X::float().
+uniform() ->
+    {X, Seed} = uniform_s(seed_get()),
+    _ = seed_put(Seed),
+    X.
+
+%% uniform/1: given an integer N >= 1,
+%% uniform/1 returns a random integer X where 1 =< X =< N,
+%% updating the state in the process dictionary.
+
+-spec uniform(N :: pos_integer()) -> X::pos_integer().
+uniform(N) ->
+    {X, Seed} = uniform_s(N, seed_get()),
+    _ = seed_put(Seed),
+    X.
+
+%% uniform_s/1: given a state, uniform_s/1
+%% returns a random float X where 0.0 < X < 1.0,
+%% and a new state.
+
+-spec uniform_s(state()) -> {X::float(), NewS :: state()}.
+uniform_s(State = {#{uniform:=Uniform}, _}) ->
+    Uniform(State).
+
+%% uniform_s/2: given an integer N >= 1 and a state, uniform_s/2
+%% uniform_s/2 returns a random integer X where 1 =< X =< N,
+%% and a new state.
+
+-spec uniform_s(N::pos_integer(), state()) -> {X::pos_integer(), NewS::state()}.
+uniform_s(N, State = {#{uniform_n:=Uniform, max:=Max}, _})
+  when 0 < N, N =< Max ->
+    Uniform(N, State);
+uniform_s(N, State0 = {#{uniform:=Uniform}, _})
+  when is_integer(N), 0 < N ->
+    {F, State} = Uniform(State0),
+    {trunc(F * N) + 1, State}.
+
+%% normal/0: returns a random float with standard normal distribution
+%% updating the state in the process dictionary.
+
+-spec normal() -> float().
+normal() ->
+    {X, Seed} = normal_s(seed_get()),
+    _ = seed_put(Seed),
+    X.
+
+%% normal_s/1: returns a random float with standard normal distribution
+%% The Ziggurat Method for generating random variables - Marsaglia and Tsang
+%% Paper and reference code: http://www.jstatsoft.org/v05/i08/
+
+-spec normal_s(state()) -> {float(), NewS :: state()}.
+normal_s(State0) ->
+    {Sign, R, State} = get_52(State0),
+    Idx = R band 16#FF,
+    Idx1 = Idx+1,
+    {Ki, Wi} = normal_kiwi(Idx1),
+    X = R * Wi,
+    case R < Ki of
+	%% Fast path 95% of the time
+	true when Sign =:= 0 -> {X, State};
+	true -> {-X, State};
+	%% Slow path
+	false when Sign =:= 0 -> normal_s(Idx, Sign, X, State);
+	false -> normal_s(Idx, Sign, -X, State)
+    end.
+
+%% =====================================================================
+%% Internal functions
+
+-define(UINT21MASK, 16#00000000001fffff).
+-define(UINT32MASK, 16#00000000ffffffff).
+-define(UINT33MASK, 16#00000001ffffffff).
+-define(UINT39MASK, 16#0000007fffffffff).
+-define(UINT58MASK, 16#03ffffffffffffff).
+-define(UINT64MASK, 16#ffffffffffffffff).
+
+-type uint64() :: 0..16#ffffffffffffffff.
+-type uint58() :: 0..16#03ffffffffffffff.
+
+-spec seed_put(state()) -> undefined | state().
+seed_put(Seed) ->
+    put(?SEED_DICT, Seed).
+
+seed_get() ->
+    case get(?SEED_DICT) of
+        undefined -> seed(?DEFAULT_ALG_HANDLER);
+        Old -> Old  % no type checking here
+    end.
+
+%% Setup alg record
+mk_alg(exs64) ->
+    {#{type=>exs64, max=>?UINT64MASK, next=>fun exs64_next/1,
+       uniform=>fun exs64_uniform/1, uniform_n=>fun exs64_uniform/2},
+     fun exs64_seed/1};
+mk_alg(exsplus) ->
+    {#{type=>exsplus, max=>?UINT58MASK, next=>fun exsplus_next/1,
+       uniform=>fun exsplus_uniform/1, uniform_n=>fun exsplus_uniform/2},
+     fun exsplus_seed/1};
+mk_alg(exs1024) ->
+    {#{type=>exs1024, max=>?UINT64MASK, next=>fun exs1024_next/1,
+       uniform=>fun exs1024_uniform/1, uniform_n=>fun exs1024_uniform/2},
+     fun exs1024_seed/1}.
+
+%% =====================================================================
+%% exs64 PRNG: Xorshift64*
+%% Algorithm by Sebastiano Vigna
+%% Reference URL: http://xorshift.di.unimi.it/
+%% =====================================================================
+
+-type exs64_state() :: uint64().
+
+exs64_seed({A1, A2, A3}) ->
+    {V1, _} = exs64_next(((A1 band ?UINT32MASK) * 4294967197 + 1)),
+    {V2, _} = exs64_next(((A2 band ?UINT32MASK) * 4294967231 + 1)),
+    {V3, _} = exs64_next(((A3 band ?UINT32MASK) * 4294967279 + 1)),
+    ((V1 * V2 * V3) rem (?UINT64MASK - 1)) + 1.
+
+%% Advance xorshift64* state for one step and generate 64bit unsigned integer
+-spec exs64_next(exs64_state()) -> {uint64(), exs64_state()}.
+exs64_next(R) ->
+    R1 = R bxor (R bsr 12),
+    R2 = R1 bxor ((R1 band ?UINT39MASK) bsl 25),
+    R3 = R2 bxor (R2 bsr 27),
+    {(R3 * 2685821657736338717) band ?UINT64MASK, R3}.
+
+exs64_uniform({Alg, R0}) ->
+    {V, R1} = exs64_next(R0),
+    {V / 18446744073709551616, {Alg, R1}}.
+
+exs64_uniform(Max, {Alg, R}) ->
+    {V, R1} = exs64_next(R),
+    {(V rem Max) + 1, {Alg, R1}}.
+
+%% =====================================================================
+%% exsplus PRNG: Xorshift116+
+%% Algorithm by Sebastiano Vigna
+%% Reference URL: http://xorshift.di.unimi.it/
+%% 58 bits fits into an immediate on 64bits erlang and is thus much faster.
+%% Modification of the original Xorshift128+ algorithm to 116
+%% by Sebastiano Vigna, a lot of thanks for his help and work.
+%% =====================================================================
+-type exsplus_state() :: nonempty_improper_list(uint58(), uint58()).
+
+exsplus_seed({A1, A2, A3}) ->
+    {_, R1} = exsplus_next([(((A1 * 4294967197) + 1) band ?UINT58MASK)|
+			    (((A2 * 4294967231) + 1) band ?UINT58MASK)]),
+    {_, R2} = exsplus_next([(((A3 * 4294967279) + 1) band ?UINT58MASK)|
+			    tl(R1)]),
+    R2.
+
+%% Advance xorshift116+ state for one step and generate 58bit unsigned integer
+-spec exsplus_next(exsplus_state()) -> {uint58(), exsplus_state()}.
+exsplus_next([S1|S0]) ->
+    %% Note: members s0 and s1 are swapped here
+    S11 = (S1 bxor (S1 bsl 24)) band ?UINT58MASK,
+    S12 = S11 bxor S0 bxor (S11 bsr 11) bxor (S0 bsr 41),
+    {(S0 + S12) band ?UINT58MASK, [S0|S12]}.
+
+exsplus_uniform({Alg, R0}) ->
+    {I, R1} = exsplus_next(R0),
+    {I / (?UINT58MASK+1), {Alg, R1}}.
+
+exsplus_uniform(Max, {Alg, R}) ->
+    {V, R1} = exsplus_next(R),
+    {(V rem Max) + 1, {Alg, R1}}.
+
+%% =====================================================================
+%% exs1024 PRNG: Xorshift1024*
+%% Algorithm by Sebastiano Vigna
+%% Reference URL: http://xorshift.di.unimi.it/
+%% =====================================================================
+
+-type exs1024_state() :: {list(uint64()), list(uint64())}.
+
+exs1024_seed({A1, A2, A3}) ->
+    B1 = (((A1 band ?UINT21MASK) + 1) * 2097131) band ?UINT21MASK,
+    B2 = (((A2 band ?UINT21MASK) + 1) * 2097133) band ?UINT21MASK,
+    B3 = (((A3 band ?UINT21MASK) + 1) * 2097143) band ?UINT21MASK,
+    {exs1024_gen1024((B1 bsl 43) bor (B2 bsl 22) bor (B3 bsl 1) bor 1),
+     []}.
+
+%% Generate a list of 16 64-bit element list
+%% of the xorshift64* random sequence
+%% from a given 64-bit seed.
+%% Note: dependent on exs64_next/1
+-spec exs1024_gen1024(uint64()) -> list(uint64()).
+exs1024_gen1024(R) ->
+    exs1024_gen1024(16, R, []).
+
+exs1024_gen1024(0, _, L) ->
+    L;
+exs1024_gen1024(N, R, L) ->
+    {X, R2} = exs64_next(R),
+    exs1024_gen1024(N - 1, R2, [X|L]).
+
+%% Calculation of xorshift1024*.
+%% exs1024_calc(S0, S1) -> {X, NS1}.
+%% X: random number output
+-spec exs1024_calc(uint64(), uint64()) -> {uint64(), uint64()}.
+exs1024_calc(S0, S1) ->
+    S11 = S1 bxor ((S1 band ?UINT33MASK) bsl 31),
+    S12 = S11 bxor (S11 bsr 11),
+    S01 = S0 bxor (S0 bsr 30),
+    NS1 = S01 bxor S12,
+    {(NS1 * 1181783497276652981) band ?UINT64MASK, NS1}.
+
+%% Advance xorshift1024* state for one step and generate 64bit unsigned integer
+-spec exs1024_next(exs1024_state()) -> {uint64(), exs1024_state()}.
+exs1024_next({[S0,S1|L3], RL}) ->
+    {X, NS1} = exs1024_calc(S0, S1),
+    {X, {[NS1|L3], [S0|RL]}};
+exs1024_next({[H], RL}) ->
+    NL = [H|lists:reverse(RL)],
+    exs1024_next({NL, []}).
+
+exs1024_uniform({Alg, R0}) ->
+    {V, R1} = exs1024_next(R0),
+    {V / 18446744073709551616, {Alg, R1}}.
+
+exs1024_uniform(Max, {Alg, R}) ->
+    {V, R1} = exs1024_next(R),
+    {(V rem Max) + 1, {Alg, R1}}.
+
+%% =====================================================================
+%% Ziggurat cont
+%% =====================================================================
+-define(NOR_R, 3.6541528853610087963519472518).
+-define(NOR_INV_R, 1/?NOR_R).
+
+%% return a {sign, Random51bits, State}
+get_52({Alg=#{next:=Next}, S0}) ->
+    {Int,S1} = Next(S0),
+    {((1 bsl 51) band Int), Int band ((1 bsl 51)-1), {Alg, S1}}.
+
+%% Slow path
+normal_s(0, Sign, X0, State0) ->
+    {U0, S1} = uniform_s(State0),
+    X = -?NOR_INV_R*math:log(U0),
+    {U1, S2} = uniform_s(S1),
+    Y = -math:log(U1),
+    case Y+Y > X*X of
+	false ->
+	    normal_s(0, Sign, X0, S2);
+	true when Sign =:= 0 ->
+	    {?NOR_R + X, S2};
+	true ->
+	    {-?NOR_R - X, S2}
+    end;
+normal_s(Idx, _Sign, X, State0) ->
+    Fi2 = normal_fi(Idx+1),
+    {U0, S1} = uniform_s(State0),
+    case ((normal_fi(Idx) - Fi2)*U0 + Fi2) < math:exp(-0.5*X*X) of
+	true ->  {X, S1};
+	false -> normal_s(S1)
+    end.
+
+%% Tables for generating normal_s
+%% ki is zipped with wi (slightly faster)
+normal_kiwi(Indx) ->
+    element(Indx,
+	{{2104047571236786,1.736725412160263e-15}, {0,9.558660351455634e-17},
+	 {1693657211986787,1.2708704834810623e-16},{1919380038271141,1.4909740962495474e-16},
+	 {2015384402196343,1.6658733631586268e-16},{2068365869448128,1.8136120810119029e-16},
+	 {2101878624052573,1.9429720153135588e-16},{2124958784102998,2.0589500628482093e-16},
+	 {2141808670795147,2.1646860576895422e-16},{2154644611568301,2.2622940392218116e-16},
+	 {2164744887587275,2.353271891404589e-16},{2172897953696594,2.438723455742877e-16},
+	 {2179616279372365,2.5194879829274225e-16},{2185247251868649,2.5962199772528103e-16},
+	 {2190034623107822,2.6694407473648285e-16},{2194154434521197,2.7395729685142446e-16},
+	 {2197736978774660,2.8069646002484804e-16},{2200880740891961,2.871905890411393e-16},
+	 {2203661538010620,2.9346417484728883e-16},{2206138681109102,2.9953809336782113e-16},
+	 {2208359231806599,3.054303000719244e-16},{2210361007258210,3.111563633892157e-16},
+	 {2212174742388539,3.1672988018581815e-16},{2213825672704646,3.2216280350549905e-16},
+	 {2215334711002614,3.274657040793975e-16},{2216719334487595,3.326479811684171e-16},
+	 {2217994262139172,3.377180341735323e-16},{2219171977965032,3.4268340353119356e-16},
+	 {2220263139538712,3.475508873172976e-16},{2221276900117330,3.523266384600203e-16},
+	 {2222221164932930,3.5701624633953494e-16},{2223102796829069,3.616248057159834e-16},
+	 {2223927782546658,3.661569752965354e-16},{2224701368170060,3.7061702777236077e-16},
+	 {2225428170204312,3.75008892787478e-16},{2226112267248242,3.7933619401549554e-16},
+	 {2226757276105256,3.836022812967728e-16},{2227366415328399,3.8781025861250247e-16},
+	 {2227942558554684,3.919630085325768e-16},{2228488279492521,3.9606321366256378e-16},
+	 {2229005890047222,4.001133755254669e-16},{2229497472775193,4.041158312414333e-16},
+	 {2229964908627060,4.080727683096045e-16},{2230409900758597,4.119862377480744e-16},
+	 {2230833995044585,4.1585816580828064e-16},{2231238597816133,4.1969036444740733e-16},
+	 {2231624991250191,4.234845407152071e-16},{2231994346765928,4.272423051889976e-16},
+	 {2232347736722750,4.309651795716294e-16},{2232686144665934,4.346546035512876e-16},
+	 {2233010474325959,4.383119410085457e-16},{2233321557544881,4.4193848564470665e-16},
+	 {2233620161276071,4.455354660957914e-16},{2233906993781271,4.491040505882875e-16},
+	 {2234182710130335,4.52645351185714e-16},{2234447917093496,4.561604276690038e-16},
+	 {2234703177503020,4.596502910884941e-16},{2234949014150181,4.631159070208165e-16},
+	 {2235185913274316,4.665581985600875e-16},{2235414327692884,4.699780490694195e-16},
+	 {2235634679614920,4.733763047158324e-16},{2235847363174595,4.767537768090853e-16},
+	 {2236052746716837,4.8011124396270155e-16},{2236251174862869,4.834494540935008e-16},
+	 {2236442970379967,4.867691262742209e-16},{2236628435876762,4.900709524522994e-16},
+	 {2236807855342765,4.933555990465414e-16},{2236981495548562,4.966237084322178e-16},
+	 {2237149607321147,4.998759003240909e-16},{2237312426707209,5.031127730659319e-16},
+	 {2237470176035652,5.0633490483427195e-16},{2237623064889403,5.095428547633892e-16},
+	 {2237771290995388,5.127371639978797e-16},{2237915041040597,5.159183566785736e-16},
+	 {2238054491421305,5.190869408670343e-16},{2238189808931712,5.222434094134042e-16},
+	 {2238321151397660,5.253882407719454e-16},{2238448668260432,5.285218997682382e-16},
+	 {2238572501115169,5.316448383216618e-16},{2238692784207942,5.34757496126473e-16},
+	 {2238809644895133,5.378603012945235e-16},{2238923204068402,5.409536709623993e-16},
+	 {2239033576548190,5.440380118655467e-16},{2239140871448443,5.471137208817361e-16},
+	 {2239245192514958,5.501811855460336e-16},{2239346638439541,5.532407845392784e-16},
+	 {2239445303151952,5.56292888151909e-16},{2239541276091442,5.593378587248462e-16},
+	 {2239634642459498,5.623760510690043e-16},{2239725483455293,5.65407812864896e-16},
+	 {2239813876495186,5.684334850436814e-16},{2239899895417494,5.714534021509204e-16},
+	 {2239983610673676,5.744678926941961e-16},{2240065089506935,5.774772794756965e-16},
+	 {2240144396119183,5.804818799107686e-16},{2240221591827230,5.834820063333892e-16},
+	 {2240296735208969,5.864779662894365e-16},{2240369882240293,5.894700628185872e-16},
+	 {2240441086423386,5.924585947256134e-16},{2240510398907004,5.95443856841806e-16},
+	 {2240577868599305,5.984261402772028e-16},{2240643542273726,6.014057326642664e-16},
+	 {2240707464668391,6.043829183936125e-16},{2240769678579486,6.073579788423606e-16},
+	 {2240830224948980,6.103311925956439e-16},{2240889142947082,6.133028356617911e-16},
+	 {2240946470049769,6.162731816816596e-16},{2241002242111691,6.192425021325847e-16},
+	 {2241056493434746,6.222110665273788e-16},{2241109256832602,6.251791426088e-16},
+	 {2241160563691400,6.281469965398895e-16},{2241210444026879,6.311148930905604e-16},
+	 {2241258926538122,6.34083095820806e-16},{2241306038658137,6.370518672608815e-16},
+	 {2241351806601435,6.400214690888025e-16},{2241396255408788,6.429921623054896e-16},
+	 {2241439408989313,6.459642074078832e-16},{2241481290160038,6.489378645603397e-16},
+	 {2241521920683062,6.519133937646159e-16},{2241561321300462,6.548910550287415e-16},
+	 {2241599511767028,6.578711085350741e-16},{2241636510880960,6.608538148078259e-16},
+	 {2241672336512612,6.638394348803506e-16},{2241707005631362,6.668282304624746e-16},
+	 {2241740534330713,6.698204641081558e-16},{2241772937851689,6.728163993837531e-16},
+	 {2241804230604585,6.758163010371901e-16},{2241834426189161,6.78820435168298e-16},
+	 {2241863537413311,6.818290694006254e-16},{2241891576310281,6.848424730550038e-16},
+	 {2241918554154466,6.878609173251664e-16},{2241944481475843,6.908846754557169e-16},
+	 {2241969368073071,6.939140229227569e-16},{2241993223025298,6.969492376174829e-16},
+	 {2242016054702685,6.999906000330764e-16},{2242037870775710,7.030383934552151e-16},
+	 {2242058678223225,7.060929041565482e-16},{2242078483339331,7.091544215954873e-16},
+	 {2242097291739040,7.122232386196779e-16},{2242115108362774,7.152996516745303e-16},
+	 {2242131937479672,7.183839610172063e-16},{2242147782689725,7.214764709364707e-16},
+	 {2242162646924736,7.245774899788387e-16},{2242176532448092,7.276873311814693e-16},
+	 {2242189440853337,7.308063123122743e-16},{2242201373061537,7.339347561177405e-16},
+	 {2242212329317416,7.370729905789831e-16},{2242222309184237,7.4022134917658e-16},
+	 {2242231311537397,7.433801711647648e-16},{2242239334556717,7.465498018555889e-16},
+	 {2242246375717369,7.497305929136979e-16},{2242252431779415,7.529229026624058e-16},
+	 {2242257498775893,7.561270964017922e-16},{2242261571999416,7.5934354673958895e-16},
+	 {2242264645987196,7.625726339356756e-16},{2242266714504453,7.658147462610487e-16},
+	 {2242267770526109,7.690702803721919e-16},{2242267806216711,7.723396417018299e-16},
+	 {2242266812908462,7.756232448671174e-16},{2242264781077289,7.789215140963852e-16},
+	 {2242261700316818,7.822348836756411e-16},{2242257559310145,7.855637984161084e-16},
+	 {2242252345799276,7.889087141441755e-16},{2242246046552082,7.922700982152271e-16},
+	 {2242238647326615,7.956484300529366e-16},{2242230132832625,7.99044201715713e-16},
+	 {2242220486690076,8.024579184921259e-16},{2242209691384458,8.058900995272657e-16},
+	 {2242197728218684,8.093412784821501e-16},{2242184577261310,8.128120042284501e-16},
+	 {2242170217290819,8.163028415809877e-16},{2242154625735679,8.198143720706533e-16},
+	 {2242137778609839,8.23347194760605e-16},{2242119650443327,8.26901927108847e-16},
+	 {2242100214207556,8.304792058805374e-16},{2242079441234906,8.340796881136629e-16},
+	 {2242057301132135,8.377040521420222e-16},{2242033761687079,8.413529986798028e-16},
+	 {2242008788768107,8.450272519724097e-16},{2241982346215682,8.487275610186155e-16},
+	 {2241954395725356,8.524547008695596e-16},{2241924896721443,8.562094740106233e-16},
+	 {2241893806220517,8.599927118327665e-16},{2241861078683830,8.638052762005259e-16},
+	 {2241826665857598,8.676480611245582e-16},{2241790516600041,8.715219945473698e-16},
+	 {2241752576693881,8.754280402517175e-16},{2241712788642916,8.793671999021043e-16},
+	 {2241671091451078,8.833405152308408e-16},{2241627420382235,8.873490703813135e-16},
+	 {2241581706698773,8.913939944224086e-16},{2241533877376767,8.954764640495068e-16},
+	 {2241483854795281,8.9959770648911e-16},{2241431556397035,9.037590026260118e-16},
+	 {2241376894317345,9.079616903740068e-16},{2241319774977817,9.122071683134846e-16},
+	 {2241260098640860,9.164968996219135e-16},{2241197758920538,9.208324163262308e-16},
+	 {2241132642244704,9.252153239095693e-16},{2241064627262652,9.296473063086417e-16},
+	 {2240993584191742,9.341301313425265e-16},{2240919374095536,9.38665656618666e-16},
+	 {2240841848084890,9.432558359676707e-16},{2240760846432232,9.479027264651738e-16},
+	 {2240676197587784,9.526084961066279e-16},{2240587717084782,9.57375432209745e-16},
+	 {2240495206318753,9.622059506294838e-16},{2240398451183567,9.671026058823054e-16},
+	 {2240297220544165,9.720681022901626e-16},{2240191264522612,9.771053062707209e-16},
+	 {2240080312570155,9.822172599190541e-16},{2239964071293331,9.874071960480671e-16},
+	 {2239842221996530,9.926785548807976e-16},{2239714417896699,9.980350026183645e-16},
+	 {2239580280957725,1.003480452143618e-15},{2239439398282193,1.0090190861637457e-15},
+	 {2239291317986196,1.0146553831467086e-15},{2239135544468203,1.0203941464683124e-15},
+	 {2238971532964979,1.0262405372613567e-15},{2238798683265269,1.0322001115486456e-15},
+	 {2238616332424351,1.03827886235154e-15},{2238423746288095,1.044483267600047e-15},
+	 {2238220109591890,1.0508203448355195e-15},{2238004514345216,1.057297713900989e-15},
+	 {2237775946143212,1.06392366906768e-15},{2237533267957822,1.0707072623632994e-15},
+	 {2237275200846753,1.0776584002668106e-15},{2237000300869952,1.0847879564403425e-15},
+	 {2236706931309099,1.0921079038149563e-15},{2236393229029147,1.0996314701785628e-15},
+	 {2236057063479501,1.1073733224935752e-15},{2235695986373246,1.1153497865853155e-15},
+	 {2235307169458859,1.1235791107110833e-15},{2234887326941578,1.1320817840164846e-15},
+	 {2234432617919447,1.140880924258278e-15},{2233938522519765,1.1500027537839792e-15},
+	 {2233399683022677,1.159477189144919e-15},{2232809697779198,1.169338578691096e-15},
+	 {2232160850599817,1.17962663529558e-15},{2231443750584641,1.190387629928289e-15},
+	 {2230646845562170,1.2016759392543819e-15},{2229755753817986,1.2135560818666897e-15},
+	 {2228752329126533,1.2261054417450561e-15},{2227613325162504,1.2394179789163251e-15},
+	 {2226308442121174,1.2536093926602567e-15},{2224797391720399,1.268824481425501e-15},
+	 {2223025347823832,1.2852479319096109e-15},{2220915633329809,1.3031206634689985e-15},
+	 {2218357446087030,1.3227655770195326e-15},{2215184158448668,1.3446300925011171e-15},
+	 {2211132412537369,1.3693606835128518e-15},{2205758503851065,1.397943667277524e-15},
+	 {2198248265654987,1.4319989869661328e-15},{2186916352102141,1.4744848603597596e-15},
+	 {2167562552481814,1.5317872741611144e-15},{2125549880839716,1.6227698675312968e-15}}).
+
+normal_fi(Indx) ->
+    element(Indx,
+	    {1.0000000000000000e+00,9.7710170126767082e-01,9.5987909180010600e-01,
+	     9.4519895344229909e-01,9.3206007595922991e-01,9.1999150503934646e-01,
+	     9.0872644005213032e-01,8.9809592189834297e-01,8.8798466075583282e-01,
+	     8.7830965580891684e-01,8.6900868803685649e-01,8.6003362119633109e-01,
+	     8.5134625845867751e-01,8.4291565311220373e-01,8.3471629298688299e-01,
+	     8.2672683394622093e-01,8.1892919160370192e-01,8.1130787431265572e-01,
+	     8.0384948317096383e-01,7.9654233042295841e-01,7.8937614356602404e-01,
+	     7.8234183265480195e-01,7.7543130498118662e-01,7.6863731579848571e-01,
+	     7.6195334683679483e-01,7.5537350650709567e-01,7.4889244721915638e-01,
+	     7.4250529634015061e-01,7.3620759812686210e-01,7.2999526456147568e-01,
+	     7.2386453346862967e-01,7.1781193263072152e-01,7.1183424887824798e-01,
+	     7.0592850133275376e-01,7.0009191813651117e-01,6.9432191612611627e-01,
+	     6.8861608300467136e-01,6.8297216164499430e-01,6.7738803621877308e-01,
+	     6.7186171989708166e-01,6.6639134390874977e-01,6.6097514777666277e-01,
+	     6.5561147057969693e-01,6.5029874311081637e-01,6.4503548082082196e-01,
+	     6.3982027745305614e-01,6.3465179928762327e-01,6.2952877992483625e-01,
+	     6.2445001554702606e-01,6.1941436060583399e-01,6.1442072388891344e-01,
+	     6.0946806492577310e-01,6.0455539069746733e-01,5.9968175261912482e-01,
+	     5.9484624376798689e-01,5.9004799633282545e-01,5.8528617926337090e-01,
+	     5.8055999610079034e-01,5.7586868297235316e-01,5.7121150673525267e-01,
+	     5.6658776325616389e-01,5.6199677581452390e-01,5.5743789361876550e-01,
+	     5.5291049042583185e-01,5.4841396325526537e-01,5.4394773119002582e-01,
+	     5.3951123425695158e-01,5.3510393238045717e-01,5.3072530440366150e-01,
+	     5.2637484717168403e-01,5.2205207467232140e-01,5.1775651722975591e-01,
+	     5.1348772074732651e-01,5.0924524599574761e-01,5.0502866794346790e-01,
+	     5.0083757512614835e-01,4.9667156905248933e-01,4.9253026364386815e-01,
+	     4.8841328470545758e-01,4.8432026942668288e-01,4.8025086590904642e-01,
+	     4.7620473271950547e-01,4.7218153846772976e-01,4.6818096140569321e-01,
+	     4.6420268904817391e-01,4.6024641781284248e-01,4.5631185267871610e-01,
+	     4.5239870686184824e-01,4.4850670150720273e-01,4.4463556539573912e-01,
+	     4.4078503466580377e-01,4.3695485254798533e-01,4.3314476911265209e-01,
+	     4.2935454102944126e-01,4.2558393133802180e-01,4.2183270922949573e-01,
+	     4.1810064983784795e-01,4.1438753404089090e-01,4.1069314827018799e-01,
+	     4.0701728432947315e-01,4.0335973922111429e-01,3.9972031498019700e-01,
+	     3.9609881851583223e-01,3.9249506145931540e-01,3.8890886001878855e-01,
+	     3.8534003484007706e-01,3.8178841087339344e-01,3.7825381724561896e-01,
+	     3.7473608713789086e-01,3.7123505766823922e-01,3.6775056977903225e-01,
+	     3.6428246812900372e-01,3.6083060098964775e-01,3.5739482014578022e-01,
+	     3.5397498080007656e-01,3.5057094148140588e-01,3.4718256395679348e-01,
+	     3.4380971314685055e-01,3.4045225704452164e-01,3.3711006663700588e-01,
+	     3.3378301583071823e-01,3.3047098137916342e-01,3.2717384281360129e-01,
+	     3.2389148237639104e-01,3.2062378495690530e-01,3.1737063802991350e-01,
+	     3.1413193159633707e-01,3.1090755812628634e-01,3.0769741250429189e-01,
+	     3.0450139197664983e-01,3.0131939610080288e-01,2.9815132669668531e-01,
+	     2.9499708779996164e-01,2.9185658561709499e-01,2.8872972848218270e-01,
+	     2.8561642681550159e-01,2.8251659308370741e-01,2.7943014176163772e-01,
+	     2.7635698929566810e-01,2.7329705406857691e-01,2.7025025636587519e-01,
+	     2.6721651834356114e-01,2.6419576399726080e-01,2.6118791913272082e-01,
+	     2.5819291133761890e-01,2.5521066995466168e-01,2.5224112605594190e-01,
+	     2.4928421241852824e-01,2.4633986350126363e-01,2.4340801542275012e-01,
+	     2.4048860594050039e-01,2.3758157443123795e-01,2.3468686187232990e-01,
+	     2.3180441082433859e-01,2.2893416541468023e-01,2.2607607132238020e-01,
+	     2.2323007576391746e-01,2.2039612748015194e-01,2.1757417672433113e-01,
+	     2.1476417525117358e-01,2.1196607630703015e-01,2.0917983462112499e-01,
+	     2.0640540639788071e-01,2.0364274931033485e-01,2.0089182249465656e-01,
+	     1.9815258654577511e-01,1.9542500351413428e-01,1.9270903690358912e-01,
+	     1.9000465167046496e-01,1.8731181422380025e-01,1.8463049242679927e-01,
+	     1.8196065559952254e-01,1.7930227452284767e-01,1.7665532144373500e-01,
+	     1.7401977008183875e-01,1.7139559563750595e-01,1.6878277480121151e-01,
+	     1.6618128576448205e-01,1.6359110823236570e-01,1.6101222343751107e-01,
+	     1.5844461415592431e-01,1.5588826472447920e-01,1.5334316106026283e-01,
+	     1.5080929068184568e-01,1.4828664273257453e-01,1.4577520800599403e-01,
+	     1.4327497897351341e-01,1.4078594981444470e-01,1.3830811644855071e-01,
+	     1.3584147657125373e-01,1.3338602969166913e-01,1.3094177717364430e-01,
+	     1.2850872227999952e-01,1.2608687022018586e-01,1.2367622820159654e-01,
+	     1.2127680548479021e-01,1.1888861344290998e-01,1.1651166562561080e-01,
+	     1.1414597782783835e-01,1.1179156816383801e-01,1.0944845714681163e-01,
+	     1.0711666777468364e-01,1.0479622562248690e-01,1.0248715894193508e-01,
+	     1.0018949876880981e-01,9.7903279038862284e-02,9.5628536713008819e-02,
+	     9.3365311912690860e-02,9.1113648066373634e-02,8.8873592068275789e-02,
+	     8.6645194450557961e-02,8.4428509570353374e-02,8.2223595813202863e-02,
+	     8.0030515814663056e-02,7.7849336702096039e-02,7.5680130358927067e-02,
+	     7.3522973713981268e-02,7.1377949058890375e-02,6.9245144397006769e-02,
+	     6.7124653827788497e-02,6.5016577971242842e-02,6.2921024437758113e-02,
+	     6.0838108349539864e-02,5.8767952920933758e-02,5.6710690106202902e-02,
+	     5.4666461324888914e-02,5.2635418276792176e-02,5.0617723860947761e-02,
+	     4.8613553215868521e-02,4.6623094901930368e-02,4.4646552251294443e-02,
+	     4.2684144916474431e-02,4.0736110655940933e-02,3.8802707404526113e-02,
+	     3.6884215688567284e-02,3.4980941461716084e-02,3.3093219458578522e-02,
+	     3.1221417191920245e-02,2.9365939758133314e-02,2.7527235669603082e-02,
+	     2.5705804008548896e-02,2.3902203305795882e-02,2.2117062707308864e-02,
+	     2.0351096230044517e-02,1.8605121275724643e-02,1.6880083152543166e-02,
+	     1.5177088307935325e-02,1.3497450601739880e-02,1.1842757857907888e-02,
+	     1.0214971439701471e-02,8.6165827693987316e-03,7.0508754713732268e-03,
+	     5.5224032992509968e-03,4.0379725933630305e-03,2.6090727461021627e-03,
+	     1.2602859304985975e-03}).
diff --git a/lib/stdlib/src/random.erl b/lib/stdlib/src/random.erl
index d7b51a151c..cf84f8cecf 100644
--- a/lib/stdlib/src/random.erl
+++ b/lib/stdlib/src/random.erl
@@ -57,11 +57,17 @@ seed() ->
 %% seed({A1, A2, A3}) 
 %%  Seed random number generation 
 
--spec seed({A1, A2, A3}) -> 'undefined' | ran() when
+-spec seed(SValue) -> 'undefined' | ran() when
+      SValue :: {A1, A2, A3} | integer(),
       A1 :: integer(),
       A2 :: integer(),
       A3 :: integer().
 
+seed(Int) when is_integer(Int) ->
+    A1 = (Int bsr 16) band 16#fffffff,
+    A2 = Int band 16#ffffff,
+    A3 = (Int bsr 36) bor (A2 bsr 16),
+    seed(A1, A2, A3);
 seed({A1, A2, A3}) ->
     seed(A1, A2, A3).
 
diff --git a/lib/stdlib/src/shell.erl b/lib/stdlib/src/shell.erl
index 679c13f0cf..c6ba574ff4 100644
--- a/lib/stdlib/src/shell.erl
+++ b/lib/stdlib/src/shell.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -314,7 +314,8 @@ prompt(N, Eval0, Bs0, RT, Ds0) ->
     case get_prompt_func() of
         {M,F} ->
             L = [{history,N}],
-            C = {call,1,{remote,1,{atom,1,M},{atom,1,F}},[{value,1,L}]},
+            A = erl_anno:new(1),
+            C = {call,A,{remote,A,{atom,A,M},{atom,A,F}},[{value,A,L}]},
             {V,Eval,Bs,Ds} = shell_cmd([C], Eval0, Bs0, RT, Ds0, pmt),
             {Eval,Bs,Ds,case V of
                             {pmt,Val} ->
@@ -416,7 +417,7 @@ expand_expr({call,_L,{atom,_,v},[N]}, C) ->
         {_,undefined,_} ->
 	    no_command(N);
 	{Ces,V,CommandN} when is_list(Ces) ->
-            {value,CommandN,V}
+            {value,erl_anno:new(CommandN),V}
     end;
 expand_expr({call,L,F,Args}, C) ->
     {call,L,expand_expr(F, C),expand_exprs(Args, C)};
@@ -901,7 +902,7 @@ prep_check({call,Line,{atom,_,f},[{var,_,_Name}]}) ->
     {atom,Line,ok};
 prep_check({value,_CommandN,_Val}) ->
     %% erl_lint cannot handle the history expansion {value,_,_}.
-    {atom,0,ok};
+    {atom,a0(),ok};
 prep_check(T) when is_tuple(T) ->
     list_to_tuple(prep_check(tuple_to_list(T)));
 prep_check([E | Es]) ->
@@ -913,7 +914,7 @@ expand_records([], E0) ->
     E0;
 expand_records(UsedRecords, E0) ->
     RecordDefs = [Def || {_Name,Def} <- UsedRecords],
-    L = 1,
+    L = erl_anno:new(1),
     E = prep_rec(E0),
     Forms = RecordDefs ++ [{function,L,foo,0,[{clause,L,[],[],[E]}]}],
     [{function,L,foo,0,[{clause,L,[],[],[NE]}]}] = 
@@ -1320,13 +1321,15 @@ list_bindings([{Name,Val}|Bs], RT) ->
     case erl_eval:fun_data(Val) of
         {fun_data,_FBs,FCs0} ->
             FCs = expand_value(FCs0), % looks nicer
-            F = {'fun',0,{clauses,FCs}},
-            M = {match,0,{var,0,Name},F},
+            A = a0(),
+            F = {'fun',A,{clauses,FCs}},
+            M = {match,A,{var,A,Name},F},
             io:fwrite(<<"~ts\n">>, [erl_pp:expr(M, enc())]);
         {named_fun_data,_FBs,FName,FCs0} ->
             FCs = expand_value(FCs0), % looks nicer
-            F = {named_fun,0,FName,FCs},
-            M = {match,0,{var,0,Name},F},
+            A = a0(),
+            F = {named_fun,A,FName,FCs},
+            M = {match,A,{var,A,Name},F},
             io:fwrite(<<"~ts\n">>, [erl_pp:expr(M, enc())]);
         false ->
             Namel = io_lib:fwrite(<<"~s = ">>, [Name]),
@@ -1356,13 +1359,18 @@ expand_value(E) ->
 %% There is no abstract representation of funs.
 try_abstract(V, CommandN) ->
     try erl_parse:abstract(V)
-    catch _:_ -> {call,0,{atom,0,v},[{integer,0,CommandN}]}
+    catch
+        _:_ ->
+            A = a0(),
+            {call,A,{atom,A,v},[{integer,A,CommandN}]}
     end.
 
 %% Rather than listing possibly huge results the calls to v/1 are shown.
 prep_list_commands(E) ->
-    substitute_v1(fun({value,CommandN,_V}) -> 
-                          {call,0,{atom,0,v},[{integer,0,CommandN}]}
+    A = a0(),
+    substitute_v1(fun({value,Anno,_V}) ->
+                          CommandN = erl_anno:line(Anno),
+                          {call,A,{atom,A,v},[{integer,A,CommandN}]}
                   end, E).
 
 substitute_v1(F, {value,_,_}=Value) ->
@@ -1374,6 +1382,9 @@ substitute_v1(F, [E | Es]) ->
 substitute_v1(_F, E) -> 
     E.
 
+a0() ->
+    erl_anno:new(0).
+
 check_and_get_history_and_results() ->
     check_env(shell_history_length),
     check_env(shell_saved_results),
diff --git a/lib/stdlib/src/shell_default.erl b/lib/stdlib/src/shell_default.erl
index 3fe359af0e..0fca7ff8c7 100644
--- a/lib/stdlib/src/shell_default.erl
+++ b/lib/stdlib/src/shell_default.erl
@@ -23,7 +23,7 @@
 -module(shell_default).
 
 -export([help/0,lc/1,c/1,c/2,nc/1,nl/1,l/1,i/0,pid/3,i/3,m/0,m/1,
-         memory/0,memory/1,
+         memory/0,memory/1,uptime/0,
 	 erlangrc/1,bi/1, regs/0, flush/0,pwd/0,ls/0,ls/1,cd/1, 
          y/1, y/2,
 	 xm/1, bt/1, q/0,
@@ -92,6 +92,7 @@ pid(X,Y,Z) 	-> c:pid(X,Y,Z).
 pwd()           -> c:pwd().
 q()		-> c:q().
 regs()          -> c:regs().
+uptime()        -> c:uptime().
 xm(Mod)         -> c:xm(Mod).
 y(File)         -> c:y(File).
 y(File, Opts)   -> c:y(File, Opts).
diff --git a/lib/stdlib/src/slave.erl b/lib/stdlib/src/slave.erl
index 1898dc8aba..28da45621a 100644
--- a/lib/stdlib/src/slave.erl
+++ b/lib/stdlib/src/slave.erl
@@ -128,7 +128,7 @@ relay1(Pid) ->
 %%	    {error, {already_running, Name@Host}}
 
 -spec start(Host) -> {ok, Node} | {error, Reason} when
-      Host :: atom(),
+      Host :: inet:hostname(),
       Node :: node(),
       Reason :: timeout | no_rsh | {already_running, Node}.
 
@@ -138,8 +138,8 @@ start(Host) ->
     start(Host, Name, [], no_link).
 
 -spec start(Host, Name) -> {ok, Node} | {error, Reason} when
-      Host :: atom(),
-      Name :: atom(),
+      Host :: inet:hostname(),
+      Name :: atom() | string(),
       Node :: node(),
       Reason :: timeout | no_rsh | {already_running, Node}.
 
@@ -147,8 +147,8 @@ start(Host, Name) ->
     start(Host, Name, []).
 
 -spec start(Host, Name, Args) -> {ok, Node} | {error, Reason} when
-      Host :: atom(),
-      Name :: atom(),
+      Host :: inet:hostname(),
+      Name :: atom() | string(),
       Args :: string(),
       Node :: node(),
       Reason :: timeout | no_rsh | {already_running, Node}.
@@ -157,7 +157,7 @@ start(Host, Name, Args) ->
     start(Host, Name, Args, no_link).
 
 -spec start_link(Host) -> {ok, Node} | {error, Reason} when
-      Host :: atom(),
+      Host :: inet:hostname(),
       Node :: node(),
       Reason :: timeout | no_rsh | {already_running, Node}.
 
@@ -167,8 +167,8 @@ start_link(Host) ->
     start(Host, Name, [], self()).
 
 -spec start_link(Host, Name) -> {ok, Node} | {error, Reason} when
-      Host :: atom(),
-      Name :: atom(),
+      Host :: inet:hostname(),
+      Name :: atom() | string(),
       Node :: node(),
       Reason :: timeout | no_rsh | {already_running, Node}.
 
@@ -176,8 +176,8 @@ start_link(Host, Name) ->
     start_link(Host, Name, []).
 
 -spec start_link(Host, Name, Args) -> {ok, Node} | {error, Reason} when
-      Host :: atom(),
-      Name :: atom(),
+      Host :: inet:hostname(),
+      Name :: atom() | string(),
       Args :: string(),
       Node :: node(),
       Reason :: timeout | no_rsh | {already_running, Node}.
@@ -210,7 +210,6 @@ start(Host0, Name, Args, LinkTo, Prog) ->
       Node :: node().
 
 stop(Node) ->
-%    io:format("stop(~p)~n", [Node]),
     rpc:call(Node, erlang, halt, []),
     ok.
 
@@ -229,7 +228,6 @@ wait_for_slave(Parent, Host, Name, Node, Args, LinkTo, Prog) ->
     Waiter = register_unique_name(0),
     case mk_cmd(Host, Name, Args, Waiter, Prog) of
 	{ok, Cmd} ->
-%%	    io:format("Command: ~ts~n", [Cmd]),
 	    open_port({spawn, Cmd}, [stream]),
 	    receive
 		{SlavePid, slave_started} ->
diff --git a/lib/stdlib/src/stdlib.app.src b/lib/stdlib/src/stdlib.app.src
index aa9899da3b..c33130cf8c 100644
--- a/lib/stdlib/src/stdlib.app.src
+++ b/lib/stdlib/src/stdlib.app.src
@@ -2,7 +2,7 @@
 %% 
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -39,6 +39,7 @@
 	     edlin_expand,
 	     epp,
 	     eval_bits,
+             erl_anno,
 	     erl_bits,
 	     erl_compile,
 	     erl_eval,
@@ -77,13 +78,13 @@
 	     orddict,
 	     ordsets,
 	     otp_internal,
-	     pg,
 	     pool,
 	     proc_lib,
 	     proplists,
              qlc,
              qlc_pt,
 	     queue,
+	     rand,
 	     random,
 	     re,
 	     sets,
@@ -103,7 +104,7 @@
                dets]},
   {applications, [kernel]},
   {env, []},
-  {runtime_dependencies, ["sasl-2.4","kernel-3.0.2","erts-6.2","crypto-3.3",
+  {runtime_dependencies, ["sasl-2.4","kernel-4.0","erts-7.0","crypto-3.3",
 			  "compiler-5.0"]}
 ]}.
 
diff --git a/lib/stdlib/src/stdlib.appup.src b/lib/stdlib/src/stdlib.appup.src
index 951dbca68e..b3569c2848 100644
--- a/lib/stdlib/src/stdlib.appup.src
+++ b/lib/stdlib/src/stdlib.appup.src
@@ -1,7 +1,7 @@
 %% -*- erlang -*-
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1999-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -17,11 +17,7 @@
 %% %CopyrightEnd%
 {"%VSN%",
  %% Up from - max one major revision back
- [{<<"2\\.[1-3](\\.[0-9]+)*">>,[restart_new_emulator]}, %% 17.1-17.3
-  {<<"2\\.0(\\.[0-9]+)*">>,[restart_new_emulator]}, %% 17.0
-  {<<"1\\.19(\\.[0-9]+)*">>,[restart_new_emulator]}],%% R16
+ [{<<"2\\.[0-4](\\.[0-9]+)*">>,[restart_new_emulator]}], %% 17.0-17.5
  %% Down to - max one major revision back
- [{<<"2\\.[1-3](\\.[0-9]+)*">>,[restart_new_emulator]}, %% 17.1-17.3
-  {<<"2\\.0(\\.[0-9]+)*">>,[restart_new_emulator]}, %% 17.0
-  {<<"1\\.19(\\.[0-9]+)*">>,[restart_new_emulator]}] %% R16
+ [{<<"2\\.[0-4](\\.[0-9]+)*">>,[restart_new_emulator]}] %% 17.0-17.5
 }.
diff --git a/lib/stdlib/src/string.erl b/lib/stdlib/src/string.erl
index f9b083a56d..f6903d1c3d 100644
--- a/lib/stdlib/src/string.erl
+++ b/lib/stdlib/src/string.erl
@@ -221,23 +221,47 @@ substr2([_|String], S) -> substr2(String, S-1).
       Tokens :: [Token :: nonempty_string()].
 
 tokens(S, Seps) ->
-    tokens1(S, Seps, []).
+    case Seps of
+	[] ->
+	    case S of
+		[] -> [];
+		[_|_] -> [S]
+	    end;
+	[C] ->
+	    tokens_single_1(reverse(S), C, []);
+	[_|_] ->
+	    tokens_multiple_1(reverse(S), Seps, [])
+    end.
 
-tokens1([C|S], Seps, Toks) ->
+tokens_single_1([Sep|S], Sep, Toks) ->
+    tokens_single_1(S, Sep, Toks);
+tokens_single_1([C|S], Sep, Toks) ->
+    tokens_single_2(S, Sep, Toks, [C]);
+tokens_single_1([], _, Toks) ->
+    Toks.
+
+tokens_single_2([Sep|S], Sep, Toks, Tok) ->
+    tokens_single_1(S, Sep, [Tok|Toks]);
+tokens_single_2([C|S], Sep, Toks, Tok) ->
+    tokens_single_2(S, Sep, Toks, [C|Tok]);
+tokens_single_2([], _Sep, Toks, Tok) ->
+    [Tok|Toks].
+
+tokens_multiple_1([C|S], Seps, Toks) ->
     case member(C, Seps) of
-	true -> tokens1(S, Seps, Toks);
-	false -> tokens2(S, Seps, Toks, [C])
+	true -> tokens_multiple_1(S, Seps, Toks);
+	false -> tokens_multiple_2(S, Seps, Toks, [C])
     end;
-tokens1([], _Seps, Toks) ->
-    reverse(Toks).
+tokens_multiple_1([], _Seps, Toks) ->
+    Toks.
 
-tokens2([C|S], Seps, Toks, Cs) ->
+tokens_multiple_2([C|S], Seps, Toks, Tok) ->
     case member(C, Seps) of
-	true -> tokens1(S, Seps, [reverse(Cs)|Toks]);
-	false -> tokens2(S, Seps, Toks, [C|Cs])
+	true -> tokens_multiple_1(S, Seps, [Tok|Toks]);
+	false -> tokens_multiple_2(S, Seps, Toks, [C|Tok])
     end;
-tokens2([], _Seps, Toks, Cs) ->
-    reverse([reverse(Cs)|Toks]).
+tokens_multiple_2([], _Seps, Toks, Tok) ->
+    [Tok|Toks].
 
 -spec chars(Character, Number) -> String when
       Character :: char(),
diff --git a/lib/stdlib/src/supervisor.erl b/lib/stdlib/src/supervisor.erl
index ede2742875..1d7396adee 100644
--- a/lib/stdlib/src/supervisor.erl
+++ b/lib/stdlib/src/supervisor.erl
@@ -25,7 +25,7 @@
 	 start_child/2, restart_child/2,
 	 delete_child/2, terminate_child/2,
 	 which_children/1, count_children/1,
-	 check_childspecs/1]).
+	 check_childspecs/1, get_childspec/2]).
 
 %% Internal exports
 -export([init/1, handle_call/3, handle_cast/2, handle_info/2,
@@ -34,7 +34,7 @@
 
 %%--------------------------------------------------------------------------
 
--export_type([child_spec/0, startchild_ret/0, strategy/0]).
+-export_type([sup_flags/0, child_spec/0, startchild_ret/0, strategy/0]).
 
 %%--------------------------------------------------------------------------
 
@@ -53,7 +53,13 @@
                   | {'global', Name :: atom()}
                   | {'via', Module :: module(), Name :: any()}
                   | pid().
--type child_spec() :: {Id :: child_id(),
+-type child_spec() :: #{id => child_id(),       % mandatory
+			start => mfargs(),      % mandatory
+			restart => restart(),   % optional
+			shutdown => shutdown(), % optional
+			type => worker(),       % optional
+			modules => modules()}   % optional
+                    | {Id :: child_id(),
                        StartFunc :: mfargs(),
                        Restart :: restart(),
                        Shutdown :: shutdown(),
@@ -63,6 +69,23 @@
 -type strategy() :: 'one_for_all' | 'one_for_one'
                   | 'rest_for_one' | 'simple_one_for_one'.
 
+-type sup_flags() :: #{strategy => strategy(),         % optional
+		       intensity => non_neg_integer(), % optional
+		       period => pos_integer()}        % optional
+                   | {RestartStrategy :: strategy(),
+                      Intensity :: non_neg_integer(),
+                      Period :: pos_integer()}.
+
+%%--------------------------------------------------------------------------
+%% Defaults
+-define(default_flags, #{strategy  => one_for_one,
+			 intensity => 1,
+			 period    => 5}).
+-define(default_child_spec, #{restart  => permanent,
+			      type     => worker}).
+%% Default 'shutdown' is 5000 for workers and infinity for supervisors.
+%% Default 'modules' is [M], where M comes from the child's start {M,F,A}.
+
 %%--------------------------------------------------------------------------
 
 -record(child, {% pid is undefined when child is not running
@@ -96,10 +119,7 @@
 -define(is_simple(State), State#state.strategy =:= simple_one_for_one).
 
 -callback init(Args :: term()) ->
-    {ok, {{RestartStrategy :: strategy(),
-           MaxR            :: non_neg_integer(),
-           MaxT            :: non_neg_integer()},
-           [ChildSpec :: child_spec()]}}
+    {ok, {SupFlags :: sup_flags(), [ChildSpec :: child_spec()]}}
     | ignore.
 
 -define(restarting(_Pid_), {restarting,_Pid_}).
@@ -178,6 +198,14 @@ delete_child(Supervisor, Name) ->
 terminate_child(Supervisor, Name) ->
     call(Supervisor, {terminate_child, Name}).
 
+-spec get_childspec(SupRef, Id) -> Result when
+      SupRef :: sup_ref(),
+      Id :: pid() | child_id(),
+      Result :: {'ok', child_spec()} | {'error', Error},
+      Error :: 'not_found'.
+get_childspec(Supervisor, Name) ->
+    call(Supervisor, {get_childspec, Name}).
+
 -spec which_children(SupRef) -> [{Id,Child,Type,Modules}] when
       SupRef :: sup_ref(),
       Id :: child_id() | undefined,
@@ -353,7 +381,7 @@ handle_call({start_child, EArgs}, _From, State) when ?is_simple(State) ->
     #child{mfargs = {M, F, A}} = Child,
     Args = A ++ EArgs,
     case do_start_child_i(M, F, Args) of
-	{ok, undefined} when Child#child.restart_type =:= temporary ->
+	{ok, undefined} ->
 	    {reply, {ok, undefined}, State};
 	{ok, Pid} ->
 	    NState = save_dynamic_child(Child#child.restart_type, Pid, Args, State),
@@ -431,6 +459,14 @@ handle_call({delete_child, Name}, _From, State) ->
 	    {reply, {error, not_found}, State}
     end;
 
+handle_call({get_childspec, Name}, _From, State) ->
+    case get_child(Name, State, ?is_simple(State)) of
+	{value, Child} ->
+            {reply, {ok, child_to_spec(Child)}, State};
+	false ->
+	    {reply, {error, not_found}, State}
+    end;
+
 handle_call(which_children, _From, #state{children = [#child{restart_type = temporary,
 							     child_type = CT,
 							     modules = Mods}]} =
@@ -610,13 +646,11 @@ terminate(_Reason, State) ->
 code_change(_, State, _) ->
     case (State#state.module):init(State#state.args) of
 	{ok, {SupFlags, StartSpec}} ->
-	    case catch check_flags(SupFlags) of
-		ok ->
-		    {Strategy, MaxIntensity, Period} = SupFlags,
-                    update_childspec(State#state{strategy = Strategy,
-                                                 intensity = MaxIntensity,
-                                                 period = Period},
-                                     StartSpec);
+	    case set_flags(SupFlags, State) of
+		{ok, State1}  ->
+                    update_childspec(State1, StartSpec);
+		{invalid_type, SupFlags} ->
+		    {error, {bad_flags, SupFlags}}; % backwards compatibility
 		Error ->
 		    {error, Error}
 	    end;
@@ -626,14 +660,6 @@ code_change(_, State, _) ->
 	    Error
     end.
 
-check_flags({Strategy, MaxIntensity, Period}) ->
-    validStrategy(Strategy),
-    validIntensity(MaxIntensity),
-    validPeriod(Period),
-    ok;
-check_flags(What) ->
-    {bad_flags, What}.
-
 update_childspec(State, StartSpec) when ?is_simple(State) ->
     case check_startspec(StartSpec) of
         {ok, [Child]} ->
@@ -1188,25 +1214,36 @@ remove_child(Child, State) ->
 %% Returns: {ok, state()} | Error
 %%-----------------------------------------------------------------
 init_state(SupName, Type, Mod, Args) ->
-    case catch init_state1(SupName, Type, Mod, Args) of
-	{ok, State} ->
-	    {ok, State};
-	Error ->
-	    Error
+    set_flags(Type, #state{name = supname(SupName,Mod),
+			   module = Mod,
+			   args = Args}).
+
+set_flags(Flags, State) ->
+    try check_flags(Flags) of
+	#{strategy := Strategy, intensity := MaxIntensity, period := Period} ->
+	    {ok, State#state{strategy = Strategy,
+			     intensity = MaxIntensity,
+			     period = Period}}
+    catch
+	Thrown -> Thrown
     end.
 
-init_state1(SupName, {Strategy, MaxIntensity, Period}, Mod, Args) ->
+check_flags(SupFlags) when is_map(SupFlags) ->
+    do_check_flags(maps:merge(?default_flags,SupFlags));
+check_flags({Strategy, MaxIntensity, Period}) ->
+    check_flags(#{strategy => Strategy,
+		  intensity => MaxIntensity,
+		  period => Period});
+check_flags(What) ->
+    throw({invalid_type, What}).
+
+do_check_flags(#{strategy := Strategy,
+		 intensity := MaxIntensity,
+		 period := Period} = Flags) ->
     validStrategy(Strategy),
     validIntensity(MaxIntensity),
     validPeriod(Period),
-    {ok, #state{name = supname(SupName,Mod),
-		strategy = Strategy,
-		intensity = MaxIntensity,
-		period = Period,
-		module = Mod,
-		args = Args}};
-init_state1(_SupName, Type, _, _) ->
-    {invalid_type, Type}.
+    Flags.
 
 validStrategy(simple_one_for_one) -> true;
 validStrategy(one_for_one)        -> true;
@@ -1227,14 +1264,7 @@ supname(N, _)      -> N.
 
 %%% ------------------------------------------------------
 %%% Check that the children start specification is valid.
-%%% Shall be a six (6) tuple
-%%%    {Name, Func, RestartType, Shutdown, ChildType, Modules}
-%%% where Name is an atom
-%%%       Func is {Mod, Fun, Args} == {atom(), atom(), list()}
-%%%       RestartType is permanent | temporary | transient
-%%%       Shutdown = integer() > 0 | infinity | brutal_kill
-%%%       ChildType = supervisor | worker
-%%%       Modules = [atom()] | dynamic
+%%% Input: [child_spec()]
 %%% Returns: {ok, [child_rec()]} | Error
 %%% ------------------------------------------------------
 
@@ -1244,6 +1274,9 @@ check_startspec([ChildSpec|T], Res) ->
     case check_childspec(ChildSpec) of
 	{ok, Child} ->
 	    case lists:keymember(Child#child.name, #child.name, Res) of
+		%% The error message duplicate_child_name is kept for
+		%% backwards compatibility, although
+		%% duplicate_child_id would be more correct.
 		true -> {duplicate_child_name, Child#child.name};
 		false -> check_startspec(T, [Child | Res])
 	    end;
@@ -1252,16 +1285,41 @@ check_startspec([ChildSpec|T], Res) ->
 check_startspec([], Res) ->
     {ok, lists:reverse(Res)}.
 
+check_childspec(ChildSpec) when is_map(ChildSpec) ->
+    catch do_check_childspec(maps:merge(?default_child_spec,ChildSpec));
 check_childspec({Name, Func, RestartType, Shutdown, ChildType, Mods}) ->
-    catch check_childspec(Name, Func, RestartType, Shutdown, ChildType, Mods);
+    check_childspec(#{id => Name,
+		      start => Func,
+		      restart => RestartType,
+		      shutdown => Shutdown,
+		      type => ChildType,
+		      modules => Mods});
 check_childspec(X) -> {invalid_child_spec, X}.
 
-check_childspec(Name, Func, RestartType, Shutdown, ChildType, Mods) ->
+do_check_childspec(#{restart := RestartType,
+		     type := ChildType} = ChildSpec)->
+    Name = case ChildSpec of
+	       #{id := N} -> N;
+	       _ -> throw(missing_id)
+	   end,
+    Func = case ChildSpec of
+	       #{start := F} -> F;
+	       _ -> throw(missing_start)
+	   end,
     validName(Name),
     validFunc(Func),
     validRestartType(RestartType),
     validChildType(ChildType),
-    validShutdown(Shutdown, ChildType),
+    Shutdown = case ChildSpec of
+		   #{shutdown := S} -> S;
+		   #{type := worker} -> 5000;
+		   #{type := supervisor} -> infinity
+	       end,
+    validShutdown(Shutdown),
+    Mods = case ChildSpec of
+	       #{modules := Ms} -> Ms;
+	       _ -> {M,_,_} = Func, [M]
+	   end,
     validMods(Mods),
     {ok, #child{name = Name, mfargs = Func, restart_type = RestartType,
 		shutdown = Shutdown, child_type = ChildType, modules = Mods}}.
@@ -1282,11 +1340,11 @@ validRestartType(temporary)   -> true;
 validRestartType(transient)   -> true;
 validRestartType(RestartType) -> throw({invalid_restart_type, RestartType}).
 
-validShutdown(Shutdown, _) 
+validShutdown(Shutdown)
   when is_integer(Shutdown), Shutdown > 0 -> true;
-validShutdown(infinity, _)             -> true;
-validShutdown(brutal_kill, _)          -> true;
-validShutdown(Shutdown, _)             -> throw({invalid_shutdown, Shutdown}).
+validShutdown(infinity)             -> true;
+validShutdown(brutal_kill)          -> true;
+validShutdown(Shutdown)             -> throw({invalid_shutdown, Shutdown}).
 
 validMods(dynamic) -> true;
 validMods(Mods) when is_list(Mods) ->
@@ -1299,6 +1357,19 @@ validMods(Mods) when is_list(Mods) ->
 		  Mods);
 validMods(Mods) -> throw({invalid_modules, Mods}).
 
+child_to_spec(#child{name = Name,
+		    mfargs = Func,
+		    restart_type = RestartType,
+		    shutdown = Shutdown,
+		    child_type = ChildType,
+		    modules = Mods}) ->
+    #{id => Name,
+      start => Func,
+      restart => RestartType,
+      shutdown => Shutdown,
+      type => ChildType,
+      modules => Mods}.
+
 %%% ------------------------------------------------------
 %%% Add a new restart and calculate if the max restart
 %%% intensity has been reached (in that case the supervisor
@@ -1312,7 +1383,7 @@ add_restart(State) ->
     I = State#state.intensity,
     P = State#state.period,
     R = State#state.restarts,
-    Now = erlang:now(),
+    Now = erlang:monotonic_time(1),
     R1 = add_restart([Now|R], Now, P),
     State1 = State#state{restarts = R1},
     case length(R1) of
@@ -1332,26 +1403,8 @@ add_restart([R|Restarts], Now, Period) ->
 add_restart([], _, _) ->
     [].
 
-inPeriod(Time, Now, Period) ->
-    case difference(Time, Now) of
-	T when T > Period ->
-	    false;
-	_ ->
-	    true
-    end.
-
-%%
-%% Time = {MegaSecs, Secs, MicroSecs} (NOTE: MicroSecs is ignored)
-%% Calculate the time elapsed in seconds between two timestamps.
-%% If MegaSecs is equal just subtract Secs.
-%% Else calculate the Mega difference and add the Secs difference,
-%% note that Secs difference can be negative, e.g.
-%%      {827, 999999, 676} diff {828, 1, 653753} == > 2 secs.
-%%
-difference({TimeM, TimeS, _}, {CurM, CurS, _}) when CurM > TimeM ->
-    ((CurM - TimeM) * 1000000) + (CurS - TimeS);
-difference({_, TimeS, _}, {_, CurS, _}) ->
-    CurS - TimeS.
+inPeriod(Then, Now, Period) ->
+    Now =< Then + Period.
 
 %%% ------------------------------------------------------
 %%% Error and progress reporting.
@@ -1367,14 +1420,14 @@ report_error(Error, Reason, Child, SupName) ->
 
 extract_child(Child) when is_list(Child#child.pid) ->
     [{nb_children, length(Child#child.pid)},
-     {name, Child#child.name},
+     {id, Child#child.name},
      {mfargs, Child#child.mfargs},
      {restart_type, Child#child.restart_type},
      {shutdown, Child#child.shutdown},
      {child_type, Child#child.child_type}];
 extract_child(Child) ->
     [{pid, Child#child.pid},
-     {name, Child#child.name},
+     {id, Child#child.name},
      {mfargs, Child#child.mfargs},
      {restart_type, Child#child.restart_type},
      {shutdown, Child#child.shutdown},
diff --git a/lib/stdlib/src/sys.erl b/lib/stdlib/src/sys.erl
index d3ba09ce82..7e4bfa1fdd 100644
--- a/lib/stdlib/src/sys.erl
+++ b/lib/stdlib/src/sys.erl
@@ -24,6 +24,7 @@
 	 get_state/1, get_state/2,
 	 replace_state/2, replace_state/3,
 	 change_code/4, change_code/5,
+	 terminate/2, terminate/3,
 	 log/2, log/3, trace/2, trace/3, statistics/2, statistics/3,
 	 log_to_file/2, log_to_file/3, no_debug/1, no_debug/2,
 	 install/2, install/3, remove/2, remove/3]).
@@ -163,6 +164,19 @@ change_code(Name, Mod, Vsn, Extra) ->
 change_code(Name, Mod, Vsn, Extra, Timeout) ->
     send_system_msg(Name, {change_code, Mod, Vsn, Extra}, Timeout).
 
+-spec terminate(Name, Reason) -> 'ok' when
+      Name :: name(),
+      Reason :: term().
+terminate(Name, Reason) ->
+    send_system_msg(Name, {terminate, Reason}).
+
+-spec terminate(Name, Reason, Timeout) -> 'ok' when
+      Name :: name(),
+      Reason :: term(),
+      Timeout :: timeout().
+terminate(Name, Reason, Timeout) ->
+    send_system_msg(Name, {terminate, Reason}, Timeout).
+
 %%-----------------------------------------------------------------
 %% Debug commands
 %%-----------------------------------------------------------------
@@ -298,6 +312,8 @@ mfa(Name, {debug, {Func, Arg2}}) ->
     {sys, Func, [Name, Arg2]};
 mfa(Name, {change_code, Mod, Vsn, Extra}) ->
     {sys, change_code, [Name, Mod, Vsn, Extra]};
+mfa(Name, {terminate, Reason}) ->
+    {sys, terminate, [Name, Reason]};
 mfa(Name, Atom) ->
     {sys, Atom, [Name]}.
 
@@ -313,7 +329,7 @@ mfa(Name, Req, Timeout) ->
 %% Returns: This function *never* returns! It calls the function
 %%          Module:system_continue(Parent, NDebug, Misc)
 %%          there the process continues the execution or
-%%          Module:system_terminate(Raeson, Parent, Debug, Misc) if
+%%          Module:system_terminate(Reason, Parent, Debug, Misc) if
 %%          the process should terminate.
 %%          The Module must export system_continue/3, system_terminate/4
 %%          and format_status/2 for status information.
@@ -339,7 +355,10 @@ handle_system_msg(SysState, Msg, From, Parent, Mod, Debug, Misc, Hib) ->
 	    suspend_loop(suspended, Parent, Mod, NDebug, NMisc, Hib);
 	{running, Reply, NDebug, NMisc} ->
 	    _ = gen:reply(From, Reply),
-            Mod:system_continue(Parent, NDebug, NMisc)
+            Mod:system_continue(Parent, NDebug, NMisc);
+	{{terminating, Reason}, Reply, NDebug, NMisc} ->
+	    _ = gen:reply(From, Reply),
+	    Mod:system_terminate(Reason, Parent, NDebug, NMisc)
     end.
 
 %%-----------------------------------------------------------------
@@ -419,6 +438,8 @@ do_cmd(SysState, get_status, Parent, Mod, Debug, Misc) ->
 do_cmd(SysState, {debug, What}, _Parent, _Mod, Debug, Misc) ->
     {Res, NDebug} = debug_cmd(What, Debug),
     {SysState, Res, NDebug, Misc};
+do_cmd(_, {terminate, Reason}, _Parent, _Mod, Debug, Misc) ->
+    {{terminating, Reason}, ok, Debug, Misc};
 do_cmd(suspended, {change_code, Module, Vsn, Extra}, _Parent,
        Mod, Debug, Misc) ->
     {Res, NMisc} = do_change_code(Mod, Module, Vsn, Extra, Misc),
diff --git a/lib/stdlib/src/timer.erl b/lib/stdlib/src/timer.erl
index 72a2dd9616..c266177b4d 100644
--- a/lib/stdlib/src/timer.erl
+++ b/lib/stdlib/src/timer.erl
@@ -161,10 +161,11 @@ sleep(T) ->
       Time :: integer(),
       Value :: term().
 tc(F) ->
-    Before = os:timestamp(),
+    T1 = erlang:monotonic_time(),
     Val = F(),
-    After = os:timestamp(),
-    {now_diff(After, Before), Val}.
+    T2 = erlang:monotonic_time(),
+    Time = erlang:convert_time_unit(T2 - T1, native, micro_seconds),
+    {Time, Val}.
 
 %%
 %% Measure the execution time (in microseconds) for Fun(Args).
@@ -175,10 +176,11 @@ tc(F) ->
       Time :: integer(),
       Value :: term().
 tc(F, A) ->
-    Before = os:timestamp(),
+    T1 = erlang:monotonic_time(),
     Val = apply(F, A),
-    After = os:timestamp(),
-    {now_diff(After, Before), Val}.
+    T2 = erlang:monotonic_time(),
+    Time = erlang:convert_time_unit(T2 - T1, native, micro_seconds),
+    {Time, Val}.
 
 %%
 %% Measure the execution time (in microseconds) for an MFA.
@@ -190,10 +192,11 @@ tc(F, A) ->
       Time :: integer(),
       Value :: term().
 tc(M, F, A) ->
-    Before = os:timestamp(),
+    T1 = erlang:monotonic_time(),
     Val = apply(M, F, A),
-    After = os:timestamp(),
-    {now_diff(After, Before), Val}.
+    T2 = erlang:monotonic_time(),
+    Time = erlang:convert_time_unit(T2 - T1, native, micro_seconds),
+    {Time, Val}.
 
 %%
 %% Calculate the time difference (in microseconds) of two
@@ -437,10 +440,8 @@ positive(X) ->
 %%
 %%  system_time() -> time in microseconds
 %%
-system_time() ->    
-    {M,S,U} = erlang:now(),
-    1000000 * (M*1000000 + S) + U.
-
+system_time() ->
+    erlang:monotonic_time(1000000).
 
 send([Pid, Msg]) ->
     Pid ! Msg.
diff --git a/lib/stdlib/src/win32reg.erl b/lib/stdlib/src/win32reg.erl
index 48a7e262be..38c41a5f6e 100644
--- a/lib/stdlib/src/win32reg.erl
+++ b/lib/stdlib/src/win32reg.erl
@@ -218,12 +218,7 @@ expand([C|Rest], [], Result) ->
     expand(Rest, [], [C|Result]);
 expand([$%|Rest], Env0, Result) ->
     Env = lists:reverse(Env0),
-    case os:getenv(Env) of
-	false ->
-	    expand(Rest, [], Result);
-	Value ->
-	    expand(Rest, [], lists:reverse(Value)++Result)
-    end;
+    expand(Rest, [], lists:reverse(os:getenv(Env, ""))++Result);
 expand([C|Rest], Env, Result) ->
     expand(Rest, [C|Env], Result);
 expand([], [], Result) ->
diff --git a/lib/stdlib/src/zip.erl b/lib/stdlib/src/zip.erl
index b768c6d0b9..f986c0081d 100644
--- a/lib/stdlib/src/zip.erl
+++ b/lib/stdlib/src/zip.erl
@@ -24,7 +24,7 @@
 	 list_dir/1, list_dir/2, table/1, table/2,
 	 t/1, tt/1]).
 
-%% unzipping peicemeal
+%% unzipping piecemeal
 -export([openzip_open/1, openzip_open/2,
 	 openzip_get/1, openzip_get/2,
 	 openzip_t/1, openzip_tt/1,
@@ -214,7 +214,9 @@
 -type zip_comment() :: #zip_comment{}.
 -type zip_file() :: #zip_file{}.
 
--export_type([create_option/0, filename/0]).
+-opaque handle() :: pid().
+
+-export_type([create_option/0, filename/0, handle/0]).
 
 %% Open a zip archive with options
 %%
@@ -500,7 +502,7 @@ do_list_dir(F, Options) ->
 
 -spec(t(Archive) -> ok when
       Archive :: file:name() | binary() | ZipHandle,
-      ZipHandle :: pid()).
+      ZipHandle :: handle()).
 
 t(F) when is_pid(F) -> zip_t(F);
 t(F) when is_record(F, openzip) -> openzip_t(F);
@@ -524,7 +526,7 @@ do_t(F, RawPrint) ->
 
 -spec(tt(Archive) -> ok when
       Archive :: file:name() | binary() | ZipHandle,
-      ZipHandle :: pid()).
+      ZipHandle :: handle()).
 
 tt(F) when is_pid(F) -> zip_tt(F);
 tt(F) when is_record(F, openzip) -> openzip_tt(F);
@@ -1114,15 +1116,19 @@ local_file_header_from_info_method_name(#file_info{mtime = MTime},
 		       file_name_length = length(Name),
 		       extra_field_length = 0}.
 
+server_init(Parent) ->
+    %% we want to know if our parent dies
+    process_flag(trap_exit, true),
+    server_loop(Parent, not_open).
 
 %% small, simple, stupid zip-archive server
-server_loop(OpenZip) ->
+server_loop(Parent, OpenZip) ->
     receive
 	{From, {open, Archive, Options}} ->
 	    case openzip_open(Archive, Options) of
 		{ok, NewOpenZip} ->
 		    From ! {self(), {ok, self()}},
-		    server_loop(NewOpenZip);
+		    server_loop(Parent, NewOpenZip);
 		Error ->
 		    From ! {self(), Error}
 	    end;
@@ -1130,43 +1136,47 @@ server_loop(OpenZip) ->
 	    From ! {self(), openzip_close(OpenZip)};
 	{From, get} ->
 	    From ! {self(), openzip_get(OpenZip)},
-	    server_loop(OpenZip);
+	    server_loop(Parent, OpenZip);
 	{From, {get, FileName}} ->
 	    From ! {self(), openzip_get(FileName, OpenZip)},
-	    server_loop(OpenZip);
+	    server_loop(Parent, OpenZip);
 	{From, list_dir} ->
 	    From ! {self(), openzip_list_dir(OpenZip)},
-	    server_loop(OpenZip);
+	    server_loop(Parent, OpenZip);
 	{From, {list_dir, Opts}} ->
 	    From ! {self(), openzip_list_dir(OpenZip, Opts)},
-	    server_loop(OpenZip);
+	    server_loop(Parent, OpenZip);
 	{From, get_state} ->
 	    From ! {self(), OpenZip},
-	    server_loop(OpenZip);
+	    server_loop(Parent, OpenZip);
+        {'EXIT', Parent, Reason} ->
+            _ = openzip_close(OpenZip),
+            exit({parent_died, Reason});
 	_ ->
 	    {error, bad_msg}
     end.
 
 -spec(zip_open(Archive) -> {ok, ZipHandle} | {error, Reason} when
       Archive :: file:name() | binary(),
-      ZipHandle :: pid(),
+      ZipHandle :: handle(),
       Reason :: term()).
 
 zip_open(Archive) -> zip_open(Archive, []).
 
 -spec(zip_open(Archive, Options) -> {ok, ZipHandle} | {error, Reason} when
       Archive :: file:name() | binary(),
-      ZipHandle :: pid(),
+      ZipHandle :: handle(),
       Options :: [Option],
       Option :: cooked | memory | {cwd, CWD :: file:filename()},
       Reason :: term()).
 
 zip_open(Archive, Options) ->
-    Pid = spawn(fun() -> server_loop(not_open) end),
-    request(self(), Pid, {open, Archive, Options}).
+    Self = self(),
+    Pid = spawn_link(fun() -> server_init(Self) end),
+    request(Self, Pid, {open, Archive, Options}).
 
 -spec(zip_get(ZipHandle) -> {ok, [Result]} | {error, Reason} when
-      ZipHandle :: pid(),
+      ZipHandle :: handle(),
       Result :: file:name() | {file:name(), binary()},
       Reason :: term()).
 
@@ -1174,14 +1184,14 @@ zip_get(Pid) when is_pid(Pid) ->
     request(self(), Pid, get).
 
 -spec(zip_close(ZipHandle) -> ok | {error, einval} when
-      ZipHandle :: pid()).
+      ZipHandle :: handle()).
 
 zip_close(Pid) when is_pid(Pid) ->
     request(self(), Pid, close).
 
 -spec(zip_get(FileName, ZipHandle) -> {ok, Result} | {error, Reason} when
       FileName :: file:name(),
-      ZipHandle :: pid(),
+      ZipHandle :: handle(),
       Result :: file:name() | {file:name(), binary()},
       Reason :: term()).
 
@@ -1190,7 +1200,7 @@ zip_get(FileName, Pid) when is_pid(Pid) ->
 
 -spec(zip_list_dir(ZipHandle) -> {ok, Result} | {error, Reason} when
       Result :: [zip_comment() | zip_file()],
-      ZipHandle :: pid(),
+      ZipHandle :: handle(),
       Reason :: term()).
 
 zip_list_dir(Pid) when is_pid(Pid) ->
diff --git a/lib/stdlib/test/Makefile b/lib/stdlib/test/Makefile
index a271229c59..61eb34d565 100644
--- a/lib/stdlib/test/Makefile
+++ b/lib/stdlib/test/Makefile
@@ -23,6 +23,7 @@ MODULES= \
 	dummy_via \
 	edlin_expand_SUITE \
 	epp_SUITE \
+	erl_anno_SUITE \
 	erl_eval_SUITE \
 	erl_expand_records_SUITE \
 	erl_internal_SUITE \
@@ -53,6 +54,7 @@ MODULES= \
 	proc_lib_SUITE \
 	qlc_SUITE \
 	queue_SUITE \
+	rand_SUITE \
 	random_SUITE \
 	re_SUITE \
 	run_pcre_tests \
diff --git a/lib/stdlib/test/binary_module_SUITE.erl b/lib/stdlib/test/binary_module_SUITE.erl
index 32cec0db6f..8d26c77c9b 100644
--- a/lib/stdlib/test/binary_module_SUITE.erl
+++ b/lib/stdlib/test/binary_module_SUITE.erl
@@ -506,12 +506,35 @@ do_interesting(Module) ->
     ?line [<<1,2,3>>,<<6>>] = Module:split(<<1,2,3,4,5,6,7,8>>,
 					   [<<4,5>>,<<7>>,<<8>>],
 					   [global,trim]),
+    ?line [<<1,2,3>>,<<6>>] = Module:split(<<1,2,3,4,5,6,7,8>>,
+					   [<<4,5>>,<<7>>,<<8>>],
+					   [global,trim_all]),
     ?line [<<1,2,3,4,5,6,7,8>>] = Module:split(<<1,2,3,4,5,6,7,8>>,
 					       [<<4,5>>,<<7>>,<<8>>],
 					       [global,trim,{scope,{0,4}}]),
     ?line [<<1,2,3>>,<<6,7,8>>] = Module:split(<<1,2,3,4,5,6,7,8>>,
 					       [<<4,5>>,<<7>>,<<8>>],
 					       [global,trim,{scope,{0,5}}]),
+
+    ?line [<<>>,<<>>,<<3>>,<<6,7,8>>] = Module:split(<<1,2,3,4,5,6,7,8>>,
+					   [<<1>>,<<2>>,<<4,5>>],
+					   [global,trim]),
+    ?line [<<3>>,<<6,7,8>>] = Module:split(<<1,2,3,4,5,6,7,8>>,
+					   [<<1>>,<<2>>,<<4,5>>],
+					   [global,trim_all]),
+
+    ?line [<<1,2,3>>,<<>>,<<7,8>>] = Module:split(<<1,2,3,4,5,6,7,8>>,
+					   [<<4,5>>,<<6>>],
+					   [global,trim]),
+    ?line [<<1,2,3>>,<<7,8>>] = Module:split(<<1,2,3,4,5,6,7,8>>,
+					   [<<4,5>>,<<6>>],
+					   [global,trim_all]),
+    ?line [<<>>,<<>>,<<3>>,<<>>,<<6>>] = Module:split(<<1,2,3,4,5,6,7,8>>,
+					   [<<1>>,<<2>>,<<4>>,<<5>>,<<7>>,<<8>>],
+					   [global,trim]),
+    ?line [<<3>>,<<6>>] = Module:split(<<1,2,3,4,5,6,7,8>>,
+					   [<<1>>,<<2>>,<<4>>,<<5>>,<<7>>,<<8>>],
+					   [global,trim_all]),
     ?line badarg = ?MASK_ERROR(
 		      Module:replace(<<1,2,3,4,5,6,7,8>>,
 				     [<<4,5>>,<<7>>,<<8>>],<<99>>,
@@ -970,43 +993,51 @@ random_parts(X,N) ->
 random_ref_comp(doc) ->
     ["Test pseudorandomly generated cases against reference imlementation"];
 random_ref_comp(Config) when is_list(Config) ->
-    ?line put(success_counter,0),
-    ?line random:seed({1271,769940,559934}),
-    ?line do_random_match_comp(5000,{1,40},{30,1000}),
+    put(success_counter,0),
+    random:seed({1271,769940,559934}),
+    Nr = {1,40},
+    Hr = {30,1000},
+    I1 = 1500,
+    I2 = 5,
+    do_random_match_comp(I1,Nr,Hr),
     io:format("Number of successes: ~p~n",[get(success_counter)]),
-    ?line do_random_match_comp2(5000,{1,40},{30,1000}),
+    do_random_match_comp2(I1,Nr,Hr),
     io:format("Number of successes: ~p~n",[get(success_counter)]),
-    ?line do_random_match_comp3(5000,{1,40},{30,1000}),
+    do_random_match_comp3(I1,Nr,Hr),
     io:format("Number of successes: ~p~n",[get(success_counter)]),
-    ?line do_random_match_comp4(5000,{1,40},{30,1000}),
+    do_random_match_comp4(I1,Nr,Hr),
     io:format("Number of successes: ~p~n",[get(success_counter)]),
-    ?line do_random_matches_comp(5000,{1,40},{30,1000}),
+    do_random_matches_comp(I1,Nr,Hr),
     io:format("Number of successes: ~p~n",[get(success_counter)]),
-    ?line do_random_matches_comp2(5000,{1,40},{30,1000}),
+    do_random_matches_comp2(I1,Nr,Hr),
     io:format("Number of successes: ~p~n",[get(success_counter)]),
-    ?line do_random_matches_comp3(5,{1,40},{30,1000}),
-    ?line erts_debug:set_internal_state(available_internal_state,true),
-    ?line io:format("oldlimit: ~p~n",[ erts_debug:set_internal_state(binary_loop_limit,100)]),
-    ?line do_random_match_comp(5000,{1,40},{30,1000}),
-    ?line do_random_matches_comp3(5,{1,40},{30,1000}),
-    ?line io:format("limit was: ~p~n",[ erts_debug:set_internal_state(binary_loop_limit,default)]),
-    ?line erts_debug:set_internal_state(available_internal_state,false),
+    do_random_matches_comp3(I2,Nr,Hr),
+    erts_debug:set_internal_state(available_internal_state,true),
+    io:format("oldlimit: ~p~n",[ erts_debug:set_internal_state(binary_loop_limit,100)]),
+    do_random_match_comp(I1,Nr,Hr),
+    do_random_matches_comp3(I2,Nr,Hr),
+    io:format("limit was: ~p~n",[ erts_debug:set_internal_state(binary_loop_limit,default)]),
+    erts_debug:set_internal_state(available_internal_state,false),
     ok.
 
 random_ref_sr_comp(doc) ->
     ["Test pseudorandomly generated cases against reference imlementation of split and replace"];
 random_ref_sr_comp(Config) when is_list(Config) ->
-    ?line put(success_counter,0),
-    ?line random:seed({1271,769940,559934}),
-    ?line do_random_split_comp(5000,{1,40},{30,1000}),
+    put(success_counter,0),
+    random:seed({1271,769940,559934}),
+    Nr = {1,40},
+    Hr = {30,1000},
+    I1 = 1500,
+    do_random_split_comp(I1,Nr,Hr),
     io:format("Number of successes: ~p~n",[get(success_counter)]),
-    ?line do_random_replace_comp(5000,{1,40},{30,1000}),
+    do_random_replace_comp(I1,Nr,Hr),
     io:format("Number of successes: ~p~n",[get(success_counter)]),
-    ?line do_random_split_comp2(5000,{1,40},{30,1000}),
+    do_random_split_comp2(I1,Nr,Hr),
     io:format("Number of successes: ~p~n",[get(success_counter)]),
-    ?line do_random_replace_comp2(5000,{1,40},{30,1000}),
+    do_random_replace_comp2(I1,Nr,Hr),
     io:format("Number of successes: ~p~n",[get(success_counter)]),
     ok.
+
 random_ref_fla_comp(doc) ->
     ["Test pseudorandomly generated cases against reference imlementation of split and replace"];
 random_ref_fla_comp(Config) when is_list(Config) ->
@@ -1107,7 +1138,9 @@ do_random_matches_comp3(N,NeedleRange,HaystackRange) ->
     Needles = [random_substring(NeedleRange,Haystack) ||
 		  _ <- lists:duplicate(NumNeedles,a)],
     RefRes = binref:matches(Haystack,Needles),
-    true = do_matches_comp_loop(10000,Needles,Haystack, RefRes),
+    RefRes = binary:matches(Haystack,Needles),
+    Compiled = binary:compile_pattern(Needles),
+    true = do_matches_comp_loop(10000,Compiled,Haystack, RefRes),
     do_random_matches_comp3(N-1,NeedleRange,HaystackRange).
 
 do_matches_comp_loop(0,_,_,_) ->
@@ -1137,9 +1170,8 @@ do_matches_comp2(N,H,A) ->
     end.
 do_matches_comp(N,H) ->
     A = ?MASK_ERROR(binref:matches(H,N)),
-    B = ?MASK_ERROR(binref:matches(H,binref:compile_pattern(N))),
-    C = ?MASK_ERROR(binary:matches(H,N)),
-    D = ?MASK_ERROR(binary:matches(make_unaligned(H),
+    B = ?MASK_ERROR(binary:matches(H,N)),
+    C = ?MASK_ERROR(binary:matches(make_unaligned(H),
 				   binary:compile_pattern([make_unaligned2(X) || X <- N]))),
     if
 	A =/= nomatch ->
@@ -1147,14 +1179,14 @@ do_matches_comp(N,H) ->
 	true ->
 	    ok
     end,
-    case {(A =:= B), (B =:= C),(C =:= D)} of
-	{true,true,true} ->
+    case {(A =:= B), (B =:= C)} of
+	{true,true} ->
 	    true;
 	_ ->
 	    io:format("Failed to match ~p (needle) against ~s (haystack)~n",
 		      [N,H]),
-	    io:format("A:~p,~nB:~p,~n,C:~p,~n,D:~p.~n",
-		      [A,B,C,D]),
+	    io:format("A:~p,~nB:~p,~n,C:~p,~n",
+		      [A,B,C]),
 	    exit(mismatch)
     end.
 
@@ -1196,46 +1228,44 @@ do_random_match_comp4(N,NeedleRange,HaystackRange) ->
 
 do_match_comp(N,H) ->
     A = ?MASK_ERROR(binref:match(H,N)),
-    B = ?MASK_ERROR(binref:match(H,binref:compile_pattern([N]))),
-    C = ?MASK_ERROR(binary:match(make_unaligned(H),N)),
-    D = ?MASK_ERROR(binary:match(H,binary:compile_pattern([N]))),
-    E = ?MASK_ERROR(binary:match(H,binary:compile_pattern(make_unaligned(N)))),
+    B = ?MASK_ERROR(binary:match(make_unaligned(H),N)),
+    C = ?MASK_ERROR(binary:match(H,binary:compile_pattern([N]))),
+    D = ?MASK_ERROR(binary:match(H,binary:compile_pattern(make_unaligned(N)))),
     if
 	A =/= nomatch ->
 	    put(success_counter,get(success_counter)+1);
 	true ->
 	    ok
     end,
-    case {(A =:= B), (B =:= C),(C =:= D),(D =:= E)} of
-	{true,true,true,true} ->
+    case {(A =:= B), (B =:= C),(C =:= D)} of
+	{true,true,true} ->
 	    true;
 	_ ->
 	    io:format("Failed to match ~s (needle) against ~s (haystack)~n",
 		      [N,H]),
-	    io:format("A:~p,~nB:~p,~n,C:~p,~n,D:~p,E:~p.~n",
-		      [A,B,C,D,E]),
+	    io:format("A:~p,~nB:~p,~n,C:~p,~n,D:~p.~n",
+		      [A,B,C,D]),
 	    exit(mismatch)
     end.
 
 do_match_comp3(N,H) ->
     A = ?MASK_ERROR(binref:match(H,N)),
-    B = ?MASK_ERROR(binref:match(H,binref:compile_pattern(N))),
-    C = ?MASK_ERROR(binary:match(H,N)),
-    D = ?MASK_ERROR(binary:match(H,binary:compile_pattern(N))),
+    B = ?MASK_ERROR(binary:match(H,N)),
+    C = ?MASK_ERROR(binary:match(H,binary:compile_pattern(N))),
     if
 	A =/= nomatch ->
 	    put(success_counter,get(success_counter)+1);
 	true ->
 	    ok
     end,
-    case {(A =:= B), (B =:= C),(C =:= D)} of
-	{true,true,true} ->
+    case {(A =:= B),(B =:= C)} of
+	{true,true} ->
 	    true;
 	_ ->
 	    io:format("Failed to match ~s (needle) against ~s (haystack)~n",
 		      [N,H]),
-	    io:format("A:~p,~nB:~p,~n,C:~p,~n,D:~p.~n",
-		      [A,B,C,D]),
+	    io:format("A:~p,~nB:~p,~n,C:~p.~n",
+		      [A,B,C]),
 	    exit(mismatch)
     end.
 
@@ -1247,6 +1277,8 @@ do_random_split_comp(N,NeedleRange,HaystackRange) ->
     true = do_split_comp(Needle,Haystack,[]),
     true = do_split_comp(Needle,Haystack,[global]),
     true = do_split_comp(Needle,Haystack,[global,trim]),
+    true = do_split_comp(Needle,Haystack,[global,trim_all]),
+    true = do_split_comp(Needle,Haystack,[global,trim,trim_all]),
     do_random_split_comp(N-1,NeedleRange,HaystackRange).
 do_random_split_comp2(0,_,_) ->
     ok;
@@ -1257,6 +1289,9 @@ do_random_split_comp2(N,NeedleRange,HaystackRange) ->
 		  _ <- lists:duplicate(NumNeedles,a)],
     true = do_split_comp(Needles,Haystack,[]),
     true = do_split_comp(Needles,Haystack,[global]),
+    true = do_split_comp(Needles,Haystack,[global,trim]),
+    true = do_split_comp(Needles,Haystack,[global,trim_all]),
+    true = do_split_comp(Needles,Haystack,[global,trim,trim_all]),
     do_random_split_comp2(N-1,NeedleRange,HaystackRange).
 
 do_split_comp(N,H,Opts) ->
diff --git a/lib/stdlib/test/binref.erl b/lib/stdlib/test/binref.erl
index 6d96736ef3..a52ea98e5a 100644
--- a/lib/stdlib/test/binref.erl
+++ b/lib/stdlib/test/binref.erl
@@ -155,7 +155,8 @@ split(Haystack,Needles0,Options) ->
 		      true ->
 			  exit(badtype)
 		  end,
-	{Part,Global,Trim} = get_opts_split(Options,{nomatch,false,false}),
+	{Part,Global,Trim,TrimAll} =
+        get_opts_split(Options,{nomatch,false,false,false}),
 	{Start,End,NewStack} =
 	    case Part of
 		nomatch ->
@@ -180,20 +181,24 @@ split(Haystack,Needles0,Options) ->
 				[X]
 			end
 		end,
-	do_split(Haystack,MList,0,Trim)
+	do_split(Haystack,MList,0,Trim,TrimAll)
     catch
 	_:_ ->
 	    erlang:error(badarg)
     end.
 
-do_split(H,[],N,true) when N >= byte_size(H) ->
+do_split(H,[],N,true,_) when N >= byte_size(H) ->
     [];
-do_split(H,[],N,_) ->
+do_split(H,[],N,_,true) when N >= byte_size(H) ->
+    [];
+do_split(H,[],N,_,_) ->
     [part(H,{N,byte_size(H)-N})];
-do_split(H,[{A,B}|T],N,Trim) ->
+do_split(H,[{A,B}|T],N,Trim,TrimAll) ->
     case part(H,{N,A-N}) of
+	<<>> when TrimAll == true ->
+	    do_split(H,T,A+B,Trim,TrimAll);
 	<<>> ->
-	    Rest =  do_split(H,T,A+B,Trim),
+	    Rest =  do_split(H,T,A+B,Trim,TrimAll),
 	    case {Trim, Rest} of
 		{true,[]} ->
 		    [];
@@ -201,7 +206,7 @@ do_split(H,[{A,B}|T],N,Trim) ->
 		    [<<>> | Rest]
 	    end;
 	Oth ->
-	    [Oth | do_split(H,T,A+B,Trim)]
+	    [Oth | do_split(H,T,A+B,Trim,TrimAll)]
     end.
 
 
@@ -565,14 +570,16 @@ get_opts_match([{scope,{A,B}} | T],_Part) ->
 get_opts_match(_,_) ->
     throw(badopt).
 
-get_opts_split([],{Part,Global,Trim}) ->
-    {Part,Global,Trim};
-get_opts_split([{scope,{A,B}} | T],{_Part,Global,Trim}) ->
-    get_opts_split(T,{{A,B},Global,Trim});
-get_opts_split([global | T],{Part,_Global,Trim}) ->
-    get_opts_split(T,{Part,true,Trim});
-get_opts_split([trim | T],{Part,Global,_Trim}) ->
-    get_opts_split(T,{Part,Global,true});
+get_opts_split([],{Part,Global,Trim,TrimAll}) ->
+    {Part,Global,Trim,TrimAll};
+get_opts_split([{scope,{A,B}} | T],{_Part,Global,Trim,TrimAll}) ->
+    get_opts_split(T,{{A,B},Global,Trim,TrimAll});
+get_opts_split([global | T],{Part,_Global,Trim,TrimAll}) ->
+    get_opts_split(T,{Part,true,Trim,TrimAll});
+get_opts_split([trim | T],{Part,Global,_Trim,TrimAll}) ->
+    get_opts_split(T,{Part,Global,true,TrimAll});
+get_opts_split([trim_all | T],{Part,Global,Trim,_TrimAll}) ->
+    get_opts_split(T,{Part,Global,Trim,true});
 get_opts_split(_,_) ->
     throw(badopt).
 
diff --git a/lib/stdlib/test/dict_SUITE.erl b/lib/stdlib/test/dict_SUITE.erl
index 69814e12ce..ab624e8dd2 100644
--- a/lib/stdlib/test/dict_SUITE.erl
+++ b/lib/stdlib/test/dict_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2008-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2008-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -25,16 +25,16 @@
 -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, 
 	 init_per_group/2,end_per_group/2,
 	 init_per_testcase/2,end_per_testcase/2,
-	 create/1,store/1]).
+         create/1,store/1,iterate/1]).
 
 -include_lib("test_server/include/test_server.hrl").
 
--import(lists, [foldl/3,reverse/1]).
+-import(lists, [foldl/3]).
 
 suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() -> 
-    [create, store].
+    [create, store, iterate].
 
 groups() -> 
     [].
@@ -93,6 +93,48 @@ store_1(List, M) ->
     D0.
 
 %%%
+%%% Test specifics for gb_trees.
+%%%
+
+iterate(Config) when is_list(Config) ->
+    test_all(fun iterate_1/1).
+
+iterate_1(M) ->
+    case M(module, []) of
+	gb_trees -> iterate_2(M);
+	_ -> ok
+    end,
+    M(empty, []).
+
+iterate_2(M) ->
+    random:seed(1, 2, 42),
+    iter_tree(M, 1000).
+
+iter_tree(_M, 0) ->
+    ok;
+iter_tree(M, N) ->
+    L = [{I, I} || I <- lists:seq(1, N)],
+    T = M(from_list, L),
+    L = lists:reverse(iterate_tree(M, T)),
+    R = random:uniform(N),
+    KV = lists:reverse(iterate_tree_from(M, R, T)),
+    KV = [P || P={K,_} <- L, K >= R],
+    iter_tree(M, N-1).
+
+iterate_tree(M, Tree) ->
+    I = M(iterator, Tree),
+    iterate_tree_1(M, M(next, I), []).
+
+iterate_tree_from(M, Start, Tree) ->
+    I = M(iterator_from, {Start, Tree}),
+    iterate_tree_1(M, M(next, I), []).
+
+iterate_tree_1(_, none, R) ->
+    R;
+iterate_tree_1(M, {K, V, I}, R) ->
+    iterate_tree_1(M, M(next, I), [{K, V} | R]).
+
+%%%
 %%% Helper functions.
 %%%
 
diff --git a/lib/stdlib/test/dict_test_lib.erl b/lib/stdlib/test/dict_test_lib.erl
index 4fdb4fa0bd..81d26ce5f8 100644
--- a/lib/stdlib/test/dict_test_lib.erl
+++ b/lib/stdlib/test/dict_test_lib.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2008-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2008-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -29,6 +29,9 @@ new(Mod, Eq) ->
 	(module, []) -> Mod;
 	(size, D) -> Mod:size(D);
 	(is_empty, D) -> Mod:is_empty(D);
+        (iterator, S) -> Mod:iterator(S);
+        (iterator_from, {Start, S}) -> Mod:iterator_from(Start, S);
+        (next, I) -> Mod:next(I);
 	(to_list, D) -> to_list(Mod, D)
     end.
 
diff --git a/lib/stdlib/test/epp_SUITE.erl b/lib/stdlib/test/epp_SUITE.erl
index b17e8bd186..9ab170c826 100644
--- a/lib/stdlib/test/epp_SUITE.erl
+++ b/lib/stdlib/test/epp_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1998-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1998-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -211,7 +211,7 @@ predef_mac(Config) when is_list(Config) ->
     ?line File = filename:join(?config(data_dir, Config), "mac3.erl"),
     ?line {ok, List} = epp:parse_file(File, [], []),
     ?line [_,
-	   {attribute, LineCol1, l, Line1},
+	   {attribute, Anno, l, Line1},
 	   {attribute, _, f, File},
 	   {attribute, _, machine1, _},
 	   {attribute, _, module, mac3},
@@ -219,13 +219,9 @@ predef_mac(Config) when is_list(Config) ->
 	   {attribute, _, ms, "mac3"},
 	   {attribute, _, machine2, _}
 	   | _] = List,
-    ?line case LineCol1 of
-              Line1 -> ok;
-              {Line1,_} -> ok
-          end,
+    Line1 = erl_anno:line(Anno),
     ok.
 
-
 variable_1(doc) ->
     [];
 variable_1(suite) ->
@@ -553,11 +549,7 @@ otp_7702(Config) when is_list(Config) ->
     {ok, AC} = beam_lib:chunks(BeamFile, [abstract_code]),
 
     {file_7702,[{abstract_code,{_,Forms}}]} = AC,
-    Fun = fun(Attrs) ->
-                  {line, L} = erl_parse:get_attribute(Attrs, line),
-                  L
-          end,
-    Forms2 = [erl_lint:modify_line(Form, Fun) || Form <- Forms],
+    Forms2 = unopaque_forms(Forms),
     ?line
         [{attribute,1,file,_},
          _,
@@ -1395,9 +1387,10 @@ otp_10820(Config) when is_list(Config) ->
 do_otp_10820(File, C, PC) ->
     {ok,Node} = start_node(erl_pp_helper, "+fnu " ++ PC),
     ok = rpc:call(Node, file, write_file, [File, C]),
-    {ok,[{attribute,1,file,{File,1}},
-         {attribute,2,module,any},
-         {eof,2}]} = rpc:call(Node, epp, parse_file, [File, [],[]]),
+    {ok, Forms} = rpc:call(Node, epp, parse_file, [File, [],[]]),
+    [{attribute,1,file,{File,1}},
+     {attribute,2,module,any},
+     {eof,2}] = unopaque_forms(Forms),
     true = test_server:stop_node(Node),
     ok.
 
@@ -1440,15 +1433,15 @@ encoding(Config) when is_list(Config) ->
 	 {attribute,1,module,encoding},
 	 {error,_},
 	 {error,{2,epp,cannot_parse}},
-	 {eof,2}]} = epp:parse_file(ErlFile, []),
+	 {eof,2}]} = epp_parse_file(ErlFile, []),
     {ok,[{attribute,1,file,_},
 	 {attribute,1,module,encoding},
 	 {eof,3}]} =
-	epp:parse_file(ErlFile, [{default_encoding,latin1}]),
+	epp_parse_file(ErlFile, [{default_encoding,latin1}]),
     {ok,[{attribute,1,file,_},
 	 {attribute,1,module,encoding},
 	 {eof,3}],[{encoding,none}]} =
-	epp:parse_file(ErlFile, [{default_encoding,latin1},extra]),
+	epp_parse_file(ErlFile, [{default_encoding,latin1},extra]),
 
     %% Try a latin-1 file with encoding given in a comment.
     C2 = <<"-module(encoding).
@@ -1459,27 +1452,27 @@ encoding(Config) when is_list(Config) ->
     {ok,[{attribute,1,file,_},
 	 {attribute,1,module,encoding},
 	 {eof,4}]} =
-	epp:parse_file(ErlFile, []),
+	epp_parse_file(ErlFile, []),
     {ok,[{attribute,1,file,_},
 	 {attribute,1,module,encoding},
 	 {eof,4}]} =
-	epp:parse_file(ErlFile, [{default_encoding,latin1}]),
+	epp_parse_file(ErlFile, [{default_encoding,latin1}]),
     {ok,[{attribute,1,file,_},
 	 {attribute,1,module,encoding},
 	 {eof,4}]} =
-	epp:parse_file(ErlFile, [{default_encoding,utf8}]),
+	epp_parse_file(ErlFile, [{default_encoding,utf8}]),
     {ok,[{attribute,1,file,_},
 	 {attribute,1,module,encoding},
 	 {eof,4}],[{encoding,latin1}]} =
-	epp:parse_file(ErlFile, [extra]),
+	epp_parse_file(ErlFile, [extra]),
     {ok,[{attribute,1,file,_},
 	 {attribute,1,module,encoding},
 	 {eof,4}],[{encoding,latin1}]} =
-	epp:parse_file(ErlFile, [{default_encoding,latin1},extra]),
+	epp_parse_file(ErlFile, [{default_encoding,latin1},extra]),
     {ok,[{attribute,1,file,_},
 	 {attribute,1,module,encoding},
 	 {eof,4}],[{encoding,latin1}]} =
-	epp:parse_file(ErlFile, [{default_encoding,utf8},extra]),
+	epp_parse_file(ErlFile, [{default_encoding,utf8},extra]),
     ok.
 
 
@@ -1552,6 +1545,17 @@ errs([_|L], File) ->
 errs([], _File) ->
     [].
 
+epp_parse_file(File, Opts) ->
+    case epp:parse_file(File, Opts) of
+        {ok, Forms} ->
+            {ok, unopaque_forms(Forms)};
+        {ok, Forms, Other} ->
+            {ok, unopaque_forms(Forms), Other}
+    end.
+
+unopaque_forms(Forms) ->
+    [erl_parse:anno_to_term(Form) || Form <- Forms].
+
 run_test(Config, Test0) ->
     Test = [<<"-module(epp_test). -compile(export_all). ">>, Test0],
     Filename = "epp_test.erl",
diff --git a/lib/stdlib/test/erl_anno_SUITE.erl b/lib/stdlib/test/erl_anno_SUITE.erl
new file mode 100644
index 0000000000..d024f6907d
--- /dev/null
+++ b/lib/stdlib/test/erl_anno_SUITE.erl
@@ -0,0 +1,568 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2001-2015. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+-module(erl_anno_SUITE).
+
+%-define(debug, true).
+
+-ifdef(debug).
+-include_lib("test_server/include/test_server.hrl").
+-define(format(S, A), io:format(S, A)).
+-else.
+-include_lib("test_server/include/test_server.hrl").
+-define(format(S, A), ok).
+-endif.
+
+-export([all/0, suite/0, groups/0, init_per_suite/1, end_per_suite/1,
+         init_per_group/2, end_per_group/2,
+         init_per_testcase/2, end_per_testcase/2]).
+
+-export([new/1, is_anno/1, generated/1, end_location/1, file/1,
+         line/1, location/1, record/1, text/1, bad/1, neg_line/1]).
+
+-export([parse_abstract/1, mapfold_anno/1]).
+
+all() ->
+    [{group, anno}, {group, parse}].
+
+groups() ->
+    [{anno, [], [new, is_anno, generated, end_location, file,
+                 line, location, record, text, bad, neg_line]},
+     {parse, [], [parse_abstract, mapfold_anno]}].
+
+suite() -> [{ct_hooks,[ts_install_cth]}].
+
+init_per_suite(Config) ->
+    Config.
+
+end_per_suite(_Config) ->
+    ok.
+
+init_per_group(_GroupName, Config) ->
+    Config.
+
+end_per_group(_GroupName, Config) ->
+    Config.
+
+init_per_testcase(_Case, Config) ->
+    Dog=?t:timetrap(?t:minutes(1)),
+    [{watchdog, Dog}|Config].
+
+end_per_testcase(_Case, _Config) ->
+    Dog=?config(watchdog, _Config),
+    test_server:timetrap_cancel(Dog),
+    ok.
+
+-define(INFO(T, V), {T, V}).
+
+-dialyzer({no_fail_call, new/1}).
+new(doc) ->
+    ["Test erl_anno:new/1"];
+new(_Config) ->
+    {'EXIT', {badarg, _}} =
+        (catch erl_anno:new([{location,1},{text, "text"}])), % badarg
+    ok.
+
+is_anno(doc) ->
+    ["Test erl_anno:is_anno/1"];
+is_anno(_Config) ->
+    false = erl_anno:is_anno(a),
+    false = erl_anno:is_anno({a}),
+    false = erl_anno:is_anno([]),
+    false = erl_anno:is_anno([{location, 1}|{generated, true}]),
+    false = erl_anno:is_anno([{generated,false}]),
+    false = erl_anno:is_anno([{generated,true}]),
+    false = erl_anno:is_anno([{location,1},{file,nofile}]),
+    false = erl_anno:is_anno([{location,1},{text,notext}]),
+
+    true = erl_anno:is_anno(erl_anno:new(1)),
+    A0 = erl_anno:new({1, 17}),
+    true = erl_anno:is_anno(A0),
+    A1 = erl_anno:set_generated(true, A0),
+    true = erl_anno:is_anno(A1),
+    A2 = erl_anno:set_file("", A1),
+    true = erl_anno:is_anno(A2),
+    A3 = erl_anno:set_record(true, A2),
+    true = erl_anno:is_anno(A3),
+    A4 = erl_anno:set_text("text", A3),
+    true = erl_anno:is_anno(A4),
+    A5 = erl_anno:set_file(<<"filename">>, A4),
+    true = erl_anno:is_anno(A5),
+    ok.
+
+generated(doc) ->
+    ["Test 'generated'"];
+generated(_Config) ->
+    test(1, [{generated, true}, {generated, false}]),
+    test(1, [{generated, false}, {generated, true}, {generated, false}]),
+    test({1, 17}, [{generated, false},
+                   {generated, true},
+                   {generated, false}]),
+    test({1, 17}, [{text, "text", [{end_location, {1, 21}}, {length, 4}]},
+                   {generated, false},
+                   {generated, true},
+                   {generated, false}]),
+    test(1, [{generated, false},
+             {generated, true},
+             {generated, false}]),
+    test(1, [{text, "text", [{end_location, 1}, {length, 4}]},
+             {generated, false},
+             {generated, true},
+             {generated, false}]),
+    ok.
+
+end_location(doc) ->
+    ["Test 'end_location'"];
+end_location(_Config) ->
+    test({1, 17}, [{text, "TEXT", [{end_location, {1, 21}}, {length, 4}]},
+                   {text, "TEXT\n", [{end_location, {2, 1}}, {length, 5}]},
+                   {text, "TEXT\ntxt", [{end_location, {2, 4}}, {length, 8}]}]),
+    test(1, [{text, "TEXT", [{end_location, 1}, {length, 4}]},
+             {text, "TEXT\n", [{end_location, 2}, {length, 5}]},
+             {text, "TEXT\ntxt", [{end_location, 2}, {length, 8}]}]),
+    ok.
+
+file(doc) ->
+    ["Test 'file'"];
+file(_Config) ->
+    test(1, [{file, "name"}, {file, ""}]),
+    test({1, 17}, [{file, "name"}, {file, ""}]),
+    ok.
+
+line(doc) ->
+    ["Test 'line'"];
+line(_Config) ->
+    test(1, [{line, 17, [{location, 17}]},
+             {location, {9, 8}, [{line, 9}, {column, 8}]},
+             {line, 14, [{location, {14, 8}}]}]),
+    ok.
+
+location(doc) ->
+    ["Test 'location'"];
+location(_Config) ->
+    test(1, [{location, 2, [{line,2}]},
+             {location, {1, 17}, [{line, 1}, {column, 17}]},
+             {location, {9, 6}, [{line, 9}, {column, 6}]},
+             {location, 9, [{column, undefined}]}]),
+    test(1, [{generated, true},
+             {location, 2, [{line,2}]},
+             {location, {1, 17}, [{line, 1}, {column, 17}]},
+             {location, {9, 6}, [{line, 9}, {column, 6}]},
+             {location, 9, [{column, undefined}]}]),
+    test(1, [{record, true},
+             {location, 2, [{line,2}]},
+             {location, {1, 17}, [{line, 1}, {column, 17}]},
+             {location, {9, 6}, [{line, 9}, {column, 6}]},
+             {location, 9, [{column, undefined}]}]),
+    ok.
+
+record(doc) ->
+    ["Test 'record'"];
+record(_Config) ->
+    test({1, 17}, [{record, true}, {record, false}]),
+    test(1, [{record, true}, {record, false}]),
+    test({1, 17}, [{generated, false},
+                   {generated, true},
+                   {generated, false}]),
+    test({1, 17}, [{text, "text", [{end_location, {1, 21}}, {length, 4}]},
+                   {generated, false},
+                   {generated, true},
+                   {generated, false}]),
+    test(1, [{generated, false},
+             {generated, true},
+             {generated, false}]),
+    test(1, [{text, "text", [{end_location, 1}, {length, 4}]},
+             {generated, false},
+             {generated, true},
+             {generated, false}]),
+    ok.
+
+text(doc) ->
+    ["Test 'text'"];
+text(_Config) ->
+    test(1, [{text, "text", [{end_location, 1}, {length, 4}]},
+             {text, "", [{end_location, 1}, {length, 0}]}]),
+    test({1, 17}, [{text, "text", [{end_location, {1,21}}, {length, 4}]},
+                   {text, "", [{end_location, {1,17}}, {length, 0}]}]),
+    ok.
+
+-dialyzer({[no_opaque, no_fail_call], bad/1}).
+bad(doc) ->
+    ["Test bad annotations"];
+bad(_Config) ->
+    Line = erl_anno:new(1),
+    LineColumn = erl_anno:new({1, 17}),
+    {'EXIT', {badarg, _}} =
+        (catch erl_anno:set_generated(true, bad)), % 3rd arg not opaque
+    {'EXIT', {badarg, _}} =
+        (catch erl_anno:set_generated(false, bad)), % 3rd arg not opaque
+    {'EXIT', {badarg, _}} =
+        (catch erl_anno:set_generated(19, Line)),
+    {'EXIT', {badarg, _}} =
+        (catch erl_anno:set_generated(19, LineColumn)),
+
+    {'EXIT', {badarg, _}} =
+        (catch erl_anno:generated(bad)), % 1st arg not opaque
+    {'EXIT', {badarg, _}} =
+        (catch erl_anno:end_location(bad)), % 1st arg not opaque
+    {'EXIT', {badarg, _}} =
+        (catch erl_anno:file(bad)), % 1st arg not opaque
+    {'EXIT', {badarg, _}} =
+        (catch erl_anno:text(bad)), % 1st arg not opaque
+    {'EXIT', {badarg, _}} =
+        (catch erl_anno:record(bad)), % 1st arg not opaque
+    ok.
+
+neg_line(doc) ->
+    ["Test negative line numbers (OTP 18)"];
+neg_line(_Config) ->
+    neg_line1(false),
+    neg_line1(true),
+    ok.
+
+neg_line1(TextToo) ->
+    Minus8_0 = erl_anno:new(-8),
+    Plus8_0 = erl_anno:new(8),
+    Minus8C_0 = erl_anno:new({-8, 17}),
+    Plus8C_0 = erl_anno:new({8, 17}),
+
+    [Minus8, Plus8, Minus8C, Plus8C] =
+        [case TextToo of
+             true ->
+                 erl_anno:set_text("foo", A);
+             false ->
+                 A
+         end || A <- [Minus8_0, Plus8_0, Minus8C_0, Plus8C_0]],
+
+    tst(-3, erl_anno:set_location(3, Minus8)),
+    tst(-3, erl_anno:set_location(-3, Plus8)),
+    tst(-3, erl_anno:set_location(-3, Minus8)),
+    tst({-3,9}, erl_anno:set_location({3, 9}, Minus8)),
+    tst({-3,9}, erl_anno:set_location({-3, 9}, Plus8)),
+    tst({-3,9}, erl_anno:set_location({-3, 9}, Minus8)),
+    tst(-3, erl_anno:set_location(3, Minus8C)),
+    tst(-3, erl_anno:set_location(-3, Plus8C)),
+    tst(-3, erl_anno:set_location(-3, Minus8C)),
+    tst({-3,9}, erl_anno:set_location({3, 9}, Minus8C)),
+    tst({-3,9}, erl_anno:set_location({-3, 9}, Plus8C)),
+    tst({-3,9}, erl_anno:set_location({-3, 9}, Minus8C)),
+
+    tst(-8, erl_anno:set_generated(true, Plus8)),
+    tst(-8, erl_anno:set_generated(true, Minus8)),
+    tst({-8,17}, erl_anno:set_generated(true, Plus8C)),
+    tst({-8,17}, erl_anno:set_generated(true, Minus8C)),
+    tst(8, erl_anno:set_generated(false, Plus8)),
+    tst(8, erl_anno:set_generated(false, Minus8)),
+    tst({8,17}, erl_anno:set_generated(false, Plus8C)),
+    tst({8,17}, erl_anno:set_generated(false, Minus8C)),
+
+    tst(-3, erl_anno:set_line(3, Minus8)),
+    tst(-3, erl_anno:set_line(-3, Plus8)),
+    tst(-3, erl_anno:set_line(-3, Minus8)),
+    tst({-3,17}, erl_anno:set_line(3, Minus8C)),
+    tst({-3,17}, erl_anno:set_line(-3, Plus8C)),
+    tst({-3,17}, erl_anno:set_line(-3, Minus8C)),
+    ok.
+
+tst(Term, Anno) ->
+    ?format("Term: ~p\n", [Term]),
+    ?format("Anno: ~p\n", [Anno]),
+    case anno_to_term(Anno) of
+        Term ->
+            ok;
+        Else ->
+            case lists:keyfind(location, 1, Else) of
+                {location, Term} ->
+                    ok;
+                _Else2 ->
+                    ?format("Else2 ~p\n", [_Else2]),
+                    io:format("expected ~p\n got     ~p\n", [Term, Else]),
+                    exit({Term, Else})
+            end
+    end.
+
+parse_abstract(doc) ->
+    ["Test erl_parse:new_anno/1, erl_parse:anno_to_term/1"
+     ", and erl_parse:anno_from_term/1"];
+parse_abstract(_Config) ->
+    T = sample_term(),
+    A = erl_parse:abstract(T, [{line,17}]),
+    T1 = erl_parse:anno_to_term(A),
+    Abstr = erl_parse:new_anno(T1),
+    T = erl_parse:normalise(Abstr),
+    Abstr2 = erl_parse:anno_from_term(T1),
+    T = erl_parse:normalise(Abstr2),
+    ok.
+
+mapfold_anno(doc) ->
+    ["Test erl_parse:{map_anno/2,fold_anno/3, and mapfold_anno/3}"];
+mapfold_anno(_Config) ->
+    T = sample_term(),
+    Abstr = erl_parse:abstract(T),
+    CF = fun(Anno, {L, D}) ->
+                 {erl_anno:new(L), {L+1, dict:store(L, Anno, D)}}
+         end,
+    {U, {N, D}} = erl_parse:mapfold_anno(CF, {1, dict:new()}, Abstr),
+    SeqA = erl_parse:fold_anno(fun(Anno, Acc) -> [Anno|Acc] end, [], U),
+    Seq = [erl_anno:location(A) || A <- SeqA],
+    Seq = lists:seq(N-1, 1, -1),
+    NF = fun(Anno) ->
+                 L = erl_anno:location(Anno),
+                 dict:fetch(L, D)
+         end,
+    Abstr = erl_parse:map_anno(NF, U),
+    ok.
+
+sample_term() ->
+    %% This is just a sample.
+    {3,a,4.0,"foo",<<"bar">>,#{a => <<19:64/unsigned-little>>},
+     [1000,2000]}.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+test(StartLocation, Updates) ->
+    S0 = init(StartLocation),
+    A0 = erl_anno:new(StartLocation),
+    chk(S0, A0, []),
+    eval(Updates, S0, A0).
+
+eval([], _S0, _A0) ->
+    ok;
+eval([{Item, Value}|Updates], S0, A0) ->
+    {S, A} = set(Item, Value, A0, S0, []),
+    eval(Updates, S, A);
+eval([{Item, Value, Secondary}|Updates], S0, A0) ->
+    {S, A} = set(Item, Value, A0, S0, Secondary),
+    eval(Updates, S, A).
+
+init({Line, Column}) ->
+    lists:sort([{location, {Line, Column}} | default()]);
+init(Line) when is_integer(Line) ->
+    lists:sort([{location, Line} | default()]).
+
+set(Item, Value, Anno0, State0, Secondary) ->
+    true = lists:member(Item, primary_items()),
+    ?format("Set '~w' to ~p\n", [Item, Value]),
+    State = set_value(Item, Value, State0),
+    Anno = anno_set(Item, Value, Anno0),
+    ?format("State0 ~p\n", [State0]),
+    ?format("State  ~p\n", [State]),
+    ?format("Anno0  ~p\n", [anno_to_term(Anno0)]),
+    ?format("Anno   ~p\n", [anno_to_term(Anno)]),
+    chk(State, Anno, Secondary),
+    ok = frame(Anno0, Anno, Secondary),
+    {State, Anno}.
+
+frame(OldAnno, NewAnno, Secondary) ->
+    SecItems = [I || {I, _} <- Secondary],
+    Frame = secondary_items() -- (SecItems ++ primary_items()),
+    ?format("Frame items ~p\n", [Frame]),
+    frame1(Frame, OldAnno, NewAnno).
+
+frame1([], _OldAnno, _NewAnno) ->
+    ok;
+frame1([Item|Items], OldAnno, NewAnno) ->
+    V1 = anno_info(OldAnno, Item),
+    V2 = anno_info(NewAnno, Item),
+    ok = check_value(Item, V1, V2),
+    frame1(Items, OldAnno, NewAnno).
+
+chk(State, Anno, Secondary) ->
+    ok = check_simple(Anno),
+    ok = chk_primary(State, Anno),
+    ok = check_secondary(Secondary, State, Anno).
+
+chk_primary(State, Anno) ->
+    chk_primary(primary_items(), State, Anno).
+
+chk_primary([], _State, _Anno) ->
+    ok;
+chk_primary([Item | Items], State, Anno) ->
+    V1 = primary_value(Item, State),
+    V2 = anno_info(Anno, Item),
+    ok = check_value(Item, V1, V2),
+    chk_primary(Items, State, Anno).
+
+check_secondary([], _State, _Anno) ->
+    ok;
+check_secondary([{Item, _}=V1 | Secondary], State, Anno) ->
+    V2 = anno_info(Anno, Item),
+    case {V1, V2} of
+        {{Item, undefined}, undefined} ->
+            ok;
+        _ ->
+            ok = check_value(Item, V1, V2)
+    end,
+    check_secondary(Secondary, State, Anno).
+
+check_value(Item, V1, V2) ->
+    ?format("~w: V1 ~p\n", [Item, V1]),
+    ?format("~w: V2 ~p\n", [Item, V2]),
+    case V1 =:= V2 of
+        true ->
+            ok;
+        false ->
+            io:format("~w: expected ~p\n got     ~p\n", [Item, V1, V2]),
+            exit({V1, V2})
+    end.
+
+check_simple(Anno) ->
+    Term = anno_to_term(Anno),
+    case find_defaults(Term) of
+        [] ->
+            ok;
+        Ds ->
+            io:format("found default values ~w in ~p\n", [Ds, Anno]),
+            exit({defaults, Anno})
+    end,
+    case check_simple1(Term) of
+        true ->
+            ok;
+        false ->
+            io:format("not simple ~p\n", [Anno]),
+            exit({not_simple, Anno})
+    end.
+
+check_simple1(L) when is_integer(L) ->
+    true;
+check_simple1({L, C}) when is_integer(L), is_integer(C) ->
+    true;
+check_simple1(List) ->
+    case lists:sort(List) of
+        [{location, _}] ->
+            false;
+        _ ->
+            true
+    end.
+
+find_defaults(L) when is_list(L) ->
+    [I ||
+        I <- default_items(),
+        {I1, Value} <- L,
+        I =:= I1,
+        Value =:= default_value(I)];
+find_defaults(_) ->
+    [].
+
+anno_to_term(Anno) ->
+    T = erl_anno:to_term(Anno),
+    maybe_sort(T).
+
+maybe_sort(L) when is_list(L) ->
+    lists:sort(L);
+maybe_sort(T) ->
+    T.
+
+anno_set(file, Value, Anno) ->
+    erl_anno:set_file(Value, Anno);
+anno_set(generated, Value, Anno) ->
+    erl_anno:set_generated(Value, Anno);
+anno_set(line, Value, Anno) ->
+    erl_anno:set_line(Value, Anno);
+anno_set(location, Value, Anno) ->
+    erl_anno:set_location(Value, Anno);
+anno_set(record, Value, Anno) ->
+    erl_anno:set_record(Value, Anno);
+anno_set(text, Value, Anno) ->
+    erl_anno:set_text(Value, Anno).
+
+anno_info(Anno, Item) ->
+    Value =
+        case Item of
+            column ->
+                erl_anno:column(Anno);
+            generated ->
+                erl_anno:generated(Anno);
+            end_location ->
+                erl_anno:end_location(Anno);
+            file ->
+                erl_anno:file(Anno);
+            length ->
+                case erl_anno:text(Anno) of
+                    undefined ->
+                        undefined;
+                    Text ->
+                        length(Text)
+                end;
+            line ->
+                erl_anno:line(Anno);
+            location ->
+                erl_anno:location(Anno);
+            record ->
+                erl_anno:record(Anno);
+            text ->
+                erl_anno:text(Anno);
+            _ ->
+                erlang:error(badarg, [Anno, Item])
+        end,
+    if
+        Value =:= undefined ->
+            undefined;
+        true ->
+            {Item, Value}
+    end.
+
+%%% Originally 'location' was primary while 'line' and 'column' were
+%%% secondary (their values are determined by 'location'). But since
+%%% set_line() is used kind of frequently, 'line' is also primary,
+%%% and 'location' secondary (depends on 'line'). 'line' need to be
+%%% handled separately.
+
+set_value(line, Line, State) ->
+    {location, Location} = primary_value(location, State),
+    NewLocation = case Location of
+                      {_, Column} ->
+                          {Line, Column};
+                      _ ->
+                          Line
+                  end,
+    set_value(location, NewLocation, State);
+set_value(Item, Value, State) ->
+    lists:ukeymerge(1, [{Item, Value}], State).
+
+primary_value(line, State) ->
+    {location, Location} = primary_value(location, State),
+    {line, case Location of
+               {Line, _} ->
+                   Line;
+               Line ->
+                   Line
+           end};
+primary_value(Item, State) ->
+    case lists:keyfind(Item, 1, State) of
+        false ->
+            undefined;
+        Tuple ->
+            Tuple
+    end.
+
+default() ->
+    [{Tag, default_value(Tag)} || Tag <- default_items()].
+
+primary_items() ->
+    [file, generated, line, location, record, text].
+
+secondary_items() ->
+    %% 'length' has not been implemented
+    [column, end_location, length, line, location].
+
+default_items() ->
+    [generated, record].
+
+default_value(generated) -> false;
+default_value(record) -> false.
diff --git a/lib/stdlib/test/erl_eval_SUITE.erl b/lib/stdlib/test/erl_eval_SUITE.erl
index b55324161b..a750c5cace 100644
--- a/lib/stdlib/test/erl_eval_SUITE.erl
+++ b/lib/stdlib/test/erl_eval_SUITE.erl
@@ -1458,8 +1458,35 @@ eep43(Config) when is_list(Config) ->
           "lists:map(fun (X) -> X#{price := 0} end,
                      [#{hello => 0, price => nil}]).",
           [#{hello => 0, price => 0}]),
-    error_check("[camembert]#{}.", {badarg,[camembert]}),
+    check(fun () ->
+		Map = #{ <<33:333>> => "wat" },
+		#{ <<33:333>> := "wat" } = Map
+	  end,
+	  "begin "
+	  "   Map = #{ <<33:333>> => \"wat\" }, "
+	  "   #{ <<33:333>> := \"wat\" } = Map  "
+	  "end.",
+	  #{ <<33:333>> => "wat" }),
+    check(fun () ->
+		K1 = 1,
+		K2 = <<42:301>>,
+		K3 = {3,K2},
+		Map = #{ K1 => 1, K2 => 2, K3 => 3, {2,2} => 4},
+		#{ K1 := 1, K2 := 2, K3 := 3, {2,2} := 4} = Map
+	  end,
+	  "begin "
+	  "    K1 = 1, "
+	  "    K2 = <<42:301>>, "
+	  "    K3 = {3,K2}, "
+	  "    Map = #{ K1 => 1, K2 => 2, K3 => 3, {2,2} => 4}, "
+	  "    #{ K1 := 1, K2 := 2, K3 := 3, {2,2} := 4} = Map "
+	  "end.",
+	  #{ 1 => 1, <<42:301>> => 2, {3,<<42:301>>} => 3, {2,2} => 4}),
+    error_check("[camembert]#{}.", {badmap,[camembert]}),
+    error_check("[camembert]#{nonexisting:=v}.", {badmap,[camembert]}),
     error_check("#{} = 1.", {badmatch,1}),
+    error_check("[]#{a=>error(bad)}.", bad),
+    error_check("(#{})#{nonexisting:=value}.", {badkey,nonexisting}),
     ok.
 
 %% Check the string in different contexts: as is; in fun; from compiled code.
diff --git a/lib/stdlib/test/erl_internal_SUITE.erl b/lib/stdlib/test/erl_internal_SUITE.erl
index b6b3c004ea..197a7a33eb 100644
--- a/lib/stdlib/test/erl_internal_SUITE.erl
+++ b/lib/stdlib/test/erl_internal_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1999-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2014. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -51,7 +51,7 @@ end_per_group(_GroupName, Config) ->
 -define(default_timeout, ?t:minutes(2)).
 
 init_per_testcase(_Case, Config) ->
-    ?line Dog = test_server:timetrap(?default_timeout),
+    Dog = test_server:timetrap(?default_timeout),
     [{watchdog, Dog}|Config].
 
 end_per_testcase(_Case, Config) ->
@@ -63,27 +63,50 @@ behav(suite) -> [];
 behav(doc) ->
     ["Check that the behaviour callbacks are correctly defined"];
 behav(_) ->
-    ?line check_behav_list([{start,2}, {stop,1}], 
-			   application:behaviour_info(callbacks)),
-    ?line check_behav_list([{init,1}, {handle_call,3}, {handle_cast,2},
-			    {handle_info,2}, {terminate,2}, {code_change,3}],
-			   gen_server:behaviour_info(callbacks)),
-    ?line check_behav_list([{init,1}, {handle_event,3}, {handle_sync_event,4},
-			    {handle_info,3}, {terminate,3}, {code_change,4}],
-			   gen_fsm:behaviour_info(callbacks)),
-    ?line check_behav_list([{init,1}, {handle_event,2}, {handle_call,2},
-			    {handle_info,2}, {terminate,2}, {code_change,3}],
-			   gen_event:behaviour_info(callbacks)),
-    ?line check_behav_list( [{init,1}, {terminate,2}], 
-			   supervisor_bridge:behaviour_info(callbacks)),
-    ?line check_behav_list([{init,1}],
-			   supervisor:behaviour_info(callbacks)),
-    ok.
+    Modules = [application, gen_server, gen_fsm, gen_event,
+               supervisor_bridge, supervisor],
+    lists:foreach(fun check_behav/1, Modules).
+
+check_behav(Module) ->
+    Callbacks = callbacks(Module),
+    Optional = optional_callbacks(Module),
+    check_behav_list(Callbacks, Module:behaviour_info(callbacks)),
+    check_behav_list(Optional, Module:behaviour_info(optional_callbacks)).
 
 check_behav_list([], []) -> ok;
 check_behav_list([L | L1], L2) ->
-    ?line true = lists:member(L, L2),
-    ?line L3 = lists:delete(L, L2),
+    true = lists:member(L, L2),
+    L3 = lists:delete(L, L2),
     check_behav_list(L1, L3).
 
-
+callbacks(application) ->
+    [{start,2}, {stop,1}];
+callbacks(gen_server) ->
+    [{init,1}, {handle_call,3}, {handle_cast,2},
+     {handle_info,2}, {terminate,2}, {code_change,3},
+     {format_status,2}];
+callbacks(gen_fsm) ->
+    [{init,1}, {handle_event,3}, {handle_sync_event,4},
+     {handle_info,3}, {terminate,3}, {code_change,4},
+     {format_status,2}];
+callbacks(gen_event) ->
+    [{init,1}, {handle_event,2}, {handle_call,2},
+     {handle_info,2}, {terminate,2}, {code_change,3},
+     {format_status,2}];
+callbacks(supervisor_bridge) ->
+    [{init,1}, {terminate,2}];
+callbacks(supervisor) ->
+    [{init,1}].
+
+optional_callbacks(application) ->
+    [];
+optional_callbacks(gen_server) ->
+    [{format_status,2}];
+optional_callbacks(gen_fsm) ->
+    [{format_status,2}];
+optional_callbacks(gen_event) ->
+    [{format_status,2}];
+optional_callbacks(supervisor_bridge) ->
+    [];
+optional_callbacks(supervisor) ->
+    [].
diff --git a/lib/stdlib/test/erl_lint_SUITE.erl b/lib/stdlib/test/erl_lint_SUITE.erl
index ea61b2082b..c0d9b7c466 100644
--- a/lib/stdlib/test/erl_lint_SUITE.erl
+++ b/lib/stdlib/test/erl_lint_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1999-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -42,6 +42,7 @@
 	  unused_vars_warn_rec/1,
 	  unused_vars_warn_fun/1, 
 	  unused_vars_OTP_4858/1,
+          unused_unsafe_vars_warn/1,
 	  export_vars_warn/1,
 	  shadow_vars/1,
 	  unused_import/1,
@@ -55,7 +56,7 @@
           otp_11772/1, otp_11771/1, otp_11872/1,
           export_all/1,
 	  bif_clash/1,
-	  behaviour_basic/1, behaviour_multiple/1,
+	  behaviour_basic/1, behaviour_multiple/1, otp_11861/1,
 	  otp_7550/1,
 	  otp_8051/1,
 	  format_warn/1,
@@ -63,7 +64,7 @@
 	  too_many_arguments/1,
 	  basic_errors/1,bin_syntax_errors/1,
           predef/1,
-          maps/1,maps_type/1
+          maps/1,maps_type/1,otp_11851/1,otp_12195/1
         ]).
 
 % Default timetrap timeout (set in init_per_testcase).
@@ -89,16 +90,16 @@ all() ->
      otp_5362, otp_5371, otp_7227, otp_5494, otp_5644,
      otp_5878, otp_5917, otp_6585, otp_6885, otp_10436, otp_11254,
      otp_11772, otp_11771, otp_11872, export_all,
-     bif_clash, behaviour_basic, behaviour_multiple,
+     bif_clash, behaviour_basic, behaviour_multiple, otp_11861,
      otp_7550, otp_8051, format_warn, {group, on_load},
      too_many_arguments, basic_errors, bin_syntax_errors, predef,
-     maps, maps_type].
+     maps, maps_type, otp_11851, otp_12195].
 
 groups() -> 
     [{unused_vars_warn, [],
       [unused_vars_warn_basic, unused_vars_warn_lc,
        unused_vars_warn_rec, unused_vars_warn_fun,
-       unused_vars_OTP_4858]},
+       unused_vars_OTP_4858, unused_unsafe_vars_warn]},
      {on_load, [], [on_load_successful, on_load_failing]}].
 
 init_per_suite(Config) ->
@@ -730,6 +731,48 @@ unused_vars_OTP_4858(Config) when is_list(Config) ->
     ?line [] = run(Config, Ts),
     ok.
 
+unused_unsafe_vars_warn(Config) when is_list(Config) ->
+    Ts = [{unused_unsafe1,
+           <<"t1() ->
+                  UnusedVar1 = unused1,
+                  try
+                      UnusedVar2 = unused2
+                  catch
+                      _:_ ->
+                          ok
+                  end,
+                  ok.
+           ">>,
+           [warn_unused_vars],
+           {warnings,[{2,erl_lint,{unused_var,'UnusedVar1'}},
+                      {4,erl_lint,{unused_var,'UnusedVar2'}}]}},
+          {unused_unsafe2,
+           <<"t2() ->
+                  try
+                      X = 1
+                  catch
+                      _:_ -> ok
+                  end.
+           ">>,
+           [warn_unused_vars],
+           {warnings,[{3,erl_lint,{unused_var,'X'}}]}},
+          {unused_unsafe2,
+           <<"t3(X, Y) ->
+                  X andalso Y.
+           ">>,
+           [warn_unused_vars],
+           []},
+          {unused_unsafe4,
+           <<"t4() ->
+                  _ = (catch X = X = 1),
+                  _ = case ok of _ -> fun() -> ok end end,
+                  fun (X) -> X end.
+           ">>,
+           [warn_unused_vars],
+           []}],
+    run(Config, Ts),
+    ok.
+
 export_vars_warn(doc) ->
     "Warnings for exported variables";
 export_vars_warn(suite) -> [];
@@ -808,7 +851,19 @@ export_vars_warn(Config) when is_list(Config) ->
            [],
            {error,[{9,erl_lint,{unbound_var,'B'}}],
                   [{9,erl_lint,{exported_var,'Y',{'receive',2}}},
-                   {10,erl_lint,{shadowed_var,'B',generate}}]}}
+                   {10,erl_lint,{shadowed_var,'B',generate}}]}},
+
+          {exp4,
+           <<"t(X) ->
+                  if true -> Z = X end,
+                  case X of
+                      1 -> Z;
+                      2 -> X
+                  end,
+                  Z = X.
+           ">>,
+           [],
+           {warnings,[{7,erl_lint,{exported_var,'Z',{'if',2}}}]}}
          ],
     ?line [] = run(Config, Ts),
     ok.
@@ -832,8 +887,15 @@ shadow_vars(Config) when is_list(Config) ->
            ">>,
 	   [nowarn_shadow_vars],
 	   {error,[{9,erl_lint,{unbound_var,'B'}}],
-	    [{9,erl_lint,{exported_var,'Y',{'receive',2}}}]}}],
-    
+	    [{9,erl_lint,{exported_var,'Y',{'receive',2}}}]}},
+          {shadow2,
+           <<"t() ->
+                  _ = (catch MS = MS = 1), % MS used unsafe
+                  _ = case ok of _ -> fun() -> ok end end,
+                  fun (MS) -> MS end. % MS not shadowed here
+           ">>,
+           [],
+           []}],
     ?line [] = run(Config, Ts),
     ok.
 
@@ -958,6 +1020,45 @@ unsafe_vars(Config) when is_list(Config) ->
            [warn_unused_vars],
            {errors,[{3,erl_lint,{unsafe_var,'X',{'if',2}}},
                     {4,erl_lint,{unsafe_var,'X',{'if',2}}}],
+            []}},
+          {unsafe8,
+           <<"t8(X) ->
+                  case X of _ -> catch _Y = 1 end,
+                  _Y."
+           >>,
+           [],
+           {errors,[{3,erl_lint,{unsafe_var,'_Y',{'catch',2}}}],
+            []}},
+           {unsafe9,
+           <<"t9(X) ->
+                  case X of
+                      1 ->
+                          catch A = 1, % unsafe only here
+                          B = 1,
+                          C = 1,
+                          D = 1;
+                      2 ->
+                          A = 2,
+                          % B not bound here
+                          C = 2,
+                          catch D = 2; % unsafe in two clauses
+                      3 ->
+                          A = 3,
+                          B = 3,
+                          C = 3,
+                          catch D = 3; % unsafe in two clauses
+                      4 ->
+                          A = 4,
+                          B = 4,
+                          C = 4,
+                          D = 4
+                  end,
+                  {A,B,C,D}."
+           >>,
+           [],
+           {errors,[{24,erl_lint,{unsafe_var,'A',{'catch',4}}},
+                    {24,erl_lint,{unsafe_var,'B',{'case',2}}},
+                    {24,erl_lint,{unsafe_var,'D',{'case',2}}}],
             []}}
          ],
     ?line [] = run(Config, Ts),
@@ -2648,8 +2749,9 @@ otp_11872(Config) when is_list(Config) ->
             t() ->
                 1.
          ">>,
-    {error,[{6,erl_lint,{undefined_type,{product,0}}}],
-     [{8,erl_lint,{new_var_arity_type,map}}]} =
+    {error,[{6,erl_lint,{undefined_type,{product,0}}},
+            {8,erl_lint,{undefined_type,{dict,0}}}],
+           [{8,erl_lint,{new_builtin_type,{map,0}}}]} =
         run_test2(Config, Ts, []),
     ok.
 
@@ -3080,6 +3182,193 @@ behaviour_multiple(Config) when is_list(Config) ->
     ?line [] = run(Config, Ts),
     ok.
 
+otp_11861(doc) ->
+    "OTP-11861. behaviour_info() and -callback.";
+otp_11861(suite) -> [];
+otp_11861(Conf) when is_list(Conf) ->
+    CallbackFiles = [callback1, callback2, callback3,
+                     bad_behaviour1, bad_behaviour2],
+    lists:foreach(fun(M) ->
+                          F = filename:join(?datadir, M),
+                          Opts = [{outdir,?privdir}, return],
+                          {ok, M, []} = compile:file(F, Opts)
+                  end, CallbackFiles),
+    CodePath = code:get_path(),
+    true = code:add_path(?privdir),
+    Ts = [{otp_11861_1,
+           <<"
+              -export([b1/1]).
+              -behaviour(callback1).
+              -behaviour(callback2).
+
+              -spec b1(atom()) -> integer().
+              b1(A) when is_atom(A)->
+                  3.
+             ">>,
+           [],
+           %% b2/1 is optional in both modules
+           {warnings,[{4,erl_lint,
+                       {conflicting_behaviours,{b1,1},callback2,3,callback1}}]}},
+          {otp_11861_2,
+           <<"
+              -export([b2/1]).
+              -behaviour(callback1).
+              -behaviour(callback2).
+
+              -spec b2(integer()) -> atom().
+              b2(I) when is_integer(I)->
+                  a.
+             ">>,
+           [],
+           %% b2/1 is optional in callback2, but not in callback1
+           {warnings,[{3,erl_lint,{undefined_behaviour_func,{b1,1},callback1}},
+                      {4,erl_lint,
+                       {conflicting_behaviours,{b2,1},callback2,3,callback1}}]}},
+          {otp_11861_3,
+           <<"
+              -callback b(_) -> atom().
+              -optional_callbacks({b1,1}). % non-existing and ignored
+             ">>,
+           [],
+           []},
+          {otp_11861_4,
+           <<"
+              -callback b(_) -> atom().
+              -optional_callbacks([{b1,1}]). % non-existing
+             ">>,
+           [],
+           %% No behaviour-info(), but callback.
+           {errors,[{3,erl_lint,{undefined_callback,{lint_test,b1,1}}}],[]}},
+          {otp_11861_5,
+           <<"
+              -optional_callbacks([{b1,1}]). % non-existing
+             ">>,
+           [],
+           %% No behaviour-info() and no callback: warning anyway
+           {errors,[{2,erl_lint,{undefined_callback,{lint_test,b1,1}}}],[]}},
+          {otp_11861_6,
+           <<"
+              -optional_callbacks([b1/1]). % non-existing
+              behaviour_info(callbacks) -> [{b1,1}].
+             ">>,
+           [],
+           %% behaviour-info() and no callback: warning anyway
+           {errors,[{2,erl_lint,{undefined_callback,{lint_test,b1,1}}}],[]}},
+          {otp_11861_7,
+           <<"
+              -optional_callbacks([b1/1]). % non-existing
+              -callback b(_) -> atom().
+              behaviour_info(callbacks) -> [{b1,1}].
+             ">>,
+           [],
+           %% behaviour-info() callback: warning
+           {errors,[{2,erl_lint,{undefined_callback,{lint_test,b1,1}}},
+                    {3,erl_lint,{behaviour_info,{lint_test,b,1}}}],
+            []}},
+          {otp_11861_8,
+           <<"
+              -callback b(_) -> atom().
+              -optional_callbacks([b/1, {b, 1}]).
+             ">>,
+           [],
+           {errors,[{3,erl_lint,{redefine_optional_callback,{b,1}}}],[]}},
+          {otp_11861_9,
+           <<"
+              -behaviour(gen_server).
+              -export([handle_call/3,handle_cast/2,handle_info/2,
+                       code_change/3, init/1, terminate/2]).
+              handle_call(_, _, _) -> ok.
+              handle_cast(_, _) -> ok.
+              handle_info(_, _) -> ok.
+              code_change(_, _, _) -> ok.
+              init(_) -> ok.
+              terminate(_, _) -> ok.
+             ">>,
+           [],
+           []},
+          {otp_11861_9,
+           <<"
+              -behaviour(gen_server).
+              -export([handle_call/3,handle_cast/2,handle_info/2,
+                       code_change/3, init/1, terminate/2, format_status/2]).
+              handle_call(_, _, _) -> ok.
+              handle_cast(_, _) -> ok.
+              handle_info(_, _) -> ok.
+              code_change(_, _, _) -> ok.
+              init(_) -> ok.
+              terminate(_, _) -> ok.
+              format_status(_, _) -> ok. % optional callback
+             ">>,
+           [],
+           %% Nothing...
+           []},
+          {otp_11861_10,
+           <<"
+              -optional_callbacks([{b1,1,bad}]). % badly formed and ignored
+              behaviour_info(callbacks) -> [{b1,1}].
+             ">>,
+           [],
+           []},
+          {otp_11861_11,
+           <<"
+              -behaviour(bad_behaviour1).
+             ">>,
+           [],
+           {warnings,[{2,erl_lint,
+                       {ill_defined_behaviour_callbacks,bad_behaviour1}}]}},
+          {otp_11861_12,
+           <<"
+              -behaviour(non_existing_behaviour).
+             ">>,
+           [],
+           {warnings,[{2,erl_lint,
+                       {undefined_behaviour,non_existing_behaviour}}]}},
+          {otp_11861_13,
+           <<"
+              -behaviour(bad_behaviour_none).
+             ">>,
+           [],
+           {warnings,[{2,erl_lint,{undefined_behaviour,bad_behaviour_none}}]}},
+          {otp_11861_14,
+           <<"
+              -callback b(_) -> atom().
+             ">>,
+           [],
+           []},
+          {otp_11861_15,
+           <<"
+              -optional_callbacks([{b1,1,bad}]). % badly formed
+              -callback b(_) -> atom().
+             ">>,
+           [],
+           []},
+          {otp_11861_16,
+           <<"
+              -callback b(_) -> atom().
+              -callback b(_) -> atom().
+             ">>,
+           [],
+           {errors,[{3,erl_lint,{redefine_callback,{b,1}}}],[]}},
+          {otp_11861_17,
+           <<"
+              -behaviour(bad_behaviour2).
+             ">>,
+           [],
+           {warnings,[{2,erl_lint,{undefined_behaviour_callbacks,
+                                   bad_behaviour2}}]}},
+          {otp_11861_18,
+           <<"
+              -export([f1/1]).
+              -behaviour(callback3).
+              f1(_) -> ok.
+             ">>,
+           [],
+           []}
+	 ],
+    ?line [] = run(Conf, Ts),
+    true = code:set_path(CodePath),
+    ok.
+
 otp_7550(doc) ->
     "Test that the new utf8/utf16/utf32 types do not allow size or unit specifiers.";
 otp_7550(Config) when is_list(Config) ->
@@ -3145,8 +3434,8 @@ format_warn(Config) when is_list(Config) ->
     ok.
 
 format_level(Level, Count, Config) ->
-    ?line W = get_compilation_warnings(Config, "format",
-                                       [{warn_format, Level}]),
+    ?line W = get_compilation_result(Config, "format",
+                                     [{warn_format, Level}]),
     %% Pick out the 'format' warnings.
     ?line FW = lists:filter(fun({_Line, erl_lint, {format_error, _}}) -> true;
                                (_) -> false
@@ -3330,42 +3619,22 @@ bin_syntax_errors(Config) ->
     ok.
 
 predef(doc) ->
-    "OTP-10342: Predefined types: array(), digraph(), and so on";
+    "OTP-10342: No longer predefined types: array(), digraph(), and so on";
 predef(suite) -> [];
 predef(Config) when is_list(Config) ->
-    W = get_compilation_warnings(Config, "predef", []),
+    W = get_compilation_result(Config, "predef", []),
     [] = W,
-    W2 = get_compilation_warnings(Config, "predef2", []),
-    Tag = deprecated_builtin_type,
-    [{7,erl_lint,{Tag,{array,0},{array,array,1},"OTP 18.0"}},
-     {12,erl_lint,{Tag,{dict,0},{dict,dict,2},"OTP 18.0"}},
-     {17,erl_lint,{Tag,{digraph,0},{digraph,graph},"OTP 18.0"}},
-     {27,erl_lint,{Tag,{gb_set,0},{gb_sets,set,1},"OTP 18.0"}},
-     {32,erl_lint,{Tag,{gb_tree,0},{gb_trees,tree,2},"OTP 18.0"}},
-     {37,erl_lint,{Tag,{queue,0},{queue,queue,1},"OTP 18.0"}},
-     {42,erl_lint,{Tag,{set,0},{sets,set,1},"OTP 18.0"}},
-     {47,erl_lint,{Tag,{tid,0},{ets,tid},"OTP 18.0"}}] = W2,
-    Ts = [{otp_10342_1,
-           <<"-compile(nowarn_deprecated_type).
-
-              -spec t(dict()) -> non_neg_integer().
-
-              t(D) ->
-                  erlang:phash2(D, 3000).
-             ">>,
-           {[nowarn_unused_function]},
-           []},
-         {otp_10342_2,
-           <<"-spec t(dict()) -> non_neg_integer().
-
-              t(D) ->
-                  erlang:phash2(D, 3000).
-             ">>,
-           {[nowarn_unused_function]},
-           {warnings,[{1,erl_lint,
-                       {deprecated_builtin_type,{dict,0},{dict,dict,2},
-                        "OTP 18.0"}}]}}],
-    [] = run(Config, Ts),
+    %% dict(), digraph() and so on were removed in Erlang/OTP 18.0.
+    E2 = get_compilation_result(Config, "predef2", []),
+    Tag = undefined_type,
+    {[{7,erl_lint,{Tag,{array,0}}},
+      {12,erl_lint,{Tag,{dict,0}}},
+      {17,erl_lint,{Tag,{digraph,0}}},
+      {27,erl_lint,{Tag,{gb_set,0}}},
+      {32,erl_lint,{Tag,{gb_tree,0}}},
+      {37,erl_lint,{Tag,{queue,0}}},
+      {42,erl_lint,{Tag,{set,0}}},
+      {47,erl_lint,{Tag,{tid,0}}}],[]} = E2,
     ok.
 
 maps(Config) ->
@@ -3398,7 +3667,8 @@ maps(Config) ->
                    g := 1 + 1,
                    h := _,
                    i := (_X = _Y),
-                   j := (x ! y) }) ->
+                   j := (x ! y),
+		   <<0:300>> := 33}) ->
                   {A,F}.
             ">>,
            [],
@@ -3411,9 +3681,10 @@ maps(Config) ->
 	   {errors,[{1,erl_lint,illegal_map_construction},
                     {1,erl_lint,{unbound_var,'X'}}],
             []}},
-	  {errors_in_map_keys,
+	  {legal_map_construction,
 	   <<"t(V) -> #{ a => 1,
 			#{a=>V} => 2,
+			#{{a,V}=>V} => 2,
 			#{ \"hi\" => wazzup, hi => ho } => yep,
 			[try a catch _:_ -> b end] => nope,
 			ok => 1.0,
@@ -3425,11 +3696,7 @@ maps(Config) ->
 		      }.
 	   ">>,
 	   [],
-	   {errors,[{2,erl_lint,{illegal_map_key_variable,'V'}},
-		    {4,erl_lint,illegal_map_key},
-		    {6,erl_lint,illegal_map_key},
-		    {8,erl_lint,illegal_map_key},
-		    {10,erl_lint,illegal_map_key}],[]}},
+	   []},
 	   {errors_in_map_keys_pattern,
 	   <<"t(#{ a := 2,
 	           #{} := A,
@@ -3440,8 +3707,14 @@ maps(Config) ->
 	       A.
 	   ">>,
 	   [],
-	   {errors,[{4,erl_lint,illegal_map_key},
-		    {6,erl_lint,{illegal_map_key_variable,'V'}}],[]}}],
+	   {errors,[{4,erl_lint,illegal_map_construction},
+                    {6,erl_lint,illegal_map_key}],[]}},
+          {unused_vars_with_empty_maps,
+           <<"t(Foo, Bar, Baz) -> {#{},#{}}.">>,
+           [warn_unused_variables],
+           {warnings,[{1,erl_lint,{unused_var,'Bar'}},
+                      {1,erl_lint,{unused_var,'Baz'}},
+                      {1,erl_lint,{unused_var,'Foo'}}]}}],
     [] = run(Config, Ts),
     ok.
 
@@ -3470,7 +3743,128 @@ maps_type(Config) when is_list(Config) ->
 	    t(M) -> M.
 	 ">>,
 	 [],
-	 {warnings,[{3,erl_lint,{new_var_arity_type,map}}]}}],
+	 {warnings,[{3,erl_lint,{new_builtin_type,{map,0}}}]}}],
+    [] = run(Config, Ts),
+    ok.
+
+otp_11851(doc) ->
+    "OTP-11851: More atoms can be used as type names + bug fixes.";
+otp_11851(Config) when is_list(Config) ->
+    Ts = [
+	{otp_11851_1,
+	 <<"-export([t/0]).
+            -type range(A, B) :: A | B.
+
+            -type union(A) :: A.
+
+            -type product() :: integer().
+
+            -type tuple(A) :: A.
+
+            -type map(A) :: A.
+
+            -type record() :: a | b.
+
+            -type integer(A) :: A.
+
+            -type atom(A) :: A.
+
+            -type binary(A, B) :: A | B.
+
+            -type 'fun'() :: integer().
+
+            -type 'fun'(X) :: X.
+
+            -type 'fun'(X, Y) :: X | Y.
+
+            -type all() :: range(atom(), integer()) | union(pid()) | product()
+                         | tuple(reference()) | map(function()) | record()
+                         | integer(atom()) | atom(integer())
+                         | binary(pid(), tuple()) | 'fun'(port())
+                         | 'fun'() | 'fun'(<<>>, 'none').
+
+            -spec t() -> all().
+
+            t() ->
+                a.
+	">>,
+	[],
+	[]},
+	{otp_11851_2,
+	 <<"-export([a/1, b/1, t/0]).
+
+            -callback b(_) -> integer().
+
+            -callback ?MODULE:a(_) -> integer().
+
+            a(_) -> 3.
+
+            b(_) -> a.
+
+            t()-> a.
+	">>,
+	[],
+	{errors,[{5,erl_lint,{bad_callback,{lint_test,a,1}}}],[]}},
+	{otp_11851_3,
+	 <<"-export([a/1]).
+
+            -spec a(_A) -> boolean() when
+                  _ :: atom(),
+                  _A :: integer().
+
+            a(_) -> true.
+	">>,
+	[],
+	{errors,[{4,erl_parse,"bad type variable"}],[]}},
+	{otp_11851_4,
+	 <<"
+            -spec a(_) -> ok.
+            -spec a(_) -> ok.
+
+            -spec ?MODULE:a(_) -> ok.
+            -spec ?MODULE:a(_) -> ok.
+	">>,
+	[],
+         {errors,[{3,erl_lint,{redefine_spec,{a,1}}},
+                  {5,erl_lint,{redefine_spec,{lint_test,a,1}}},
+                  {6,erl_lint,{redefine_spec,{lint_test,a,1}}},
+                  {6,erl_lint,{spec_fun_undefined,{a,1}}}],
+          []}}
+          ],
+    [] = run(Config, Ts),
+    ok.
+
+otp_12195(doc) ->
+    "OTP-12195: Check obsolete types (tailor made for OTP 18).";
+otp_12195(Config) when is_list(Config) ->
+    Ts = [{otp_12195_1,
+           <<"-export_type([r1/0]).
+              -type r1() :: erl_scan:line()
+                          | erl_scan:column()
+                          | erl_scan:location()
+                          | erl_anno:line().">>,
+           [],
+           {warnings,[{2,erl_lint,
+                       {deprecated_type,{erl_scan,line,0},
+                        "deprecated (will be removed in OTP 19); "
+                        "use erl_anno:line() instead"}},
+                      {3,erl_lint,
+                       {deprecated_type,{erl_scan,column,0},
+                        "deprecated (will be removed in OTP 19); use "
+                        "erl_anno:column() instead"}},
+                      {4,erl_lint,
+                       {deprecated_type,{erl_scan,location,0},
+                        "deprecated (will be removed in OTP 19); "
+                        "use erl_anno:location() instead"}}]}},
+          {otp_12195_2,
+           <<"-export_type([r1/0]).
+              -compile(nowarn_deprecated_type).
+              -type r1() :: erl_scan:line()
+                          | erl_scan:column()
+                          | erl_scan:location()
+                          | erl_anno:line().">>,
+           [],
+           []}],
     [] = run(Config, Ts),
     ok.
 
@@ -3487,9 +3881,9 @@ run(Config, Tests) ->
         end,
     lists:foldl(F, [], Tests).
 
-%% Compiles a test file and returns the list of warnings.
+%% Compiles a test file and returns the list of warnings/errors.
 
-get_compilation_warnings(Conf, Filename, Warnings) ->
+get_compilation_result(Conf, Filename, Warnings) ->
     ?line DataDir = ?datadir,
     ?line File = filename:join(DataDir, Filename),
     {ok,Bin} = file:read_file(File++".erl"),
@@ -3498,6 +3892,7 @@ get_compilation_warnings(Conf, Filename, Warnings) ->
     Test = lists:nthtail(Start+Length, FileS),
     case run_test(Conf, Test, Warnings) of
         {warnings, Ws} -> Ws;
+        {errors,Es,Ws} -> {Es,Ws};
         [] -> []
     end.
 
diff --git a/lib/stdlib/test/erl_lint_SUITE_data/bad_behaviour1.erl b/lib/stdlib/test/erl_lint_SUITE_data/bad_behaviour1.erl
new file mode 100644
index 0000000000..230f4b4519
--- /dev/null
+++ b/lib/stdlib/test/erl_lint_SUITE_data/bad_behaviour1.erl
@@ -0,0 +1,6 @@
+-module(bad_behaviour1).
+
+-export([behaviour_info/1]).
+
+behaviour_info(callbacks) ->
+    [{a,1,bad}].
diff --git a/lib/stdlib/test/erl_lint_SUITE_data/bad_behaviour2.erl b/lib/stdlib/test/erl_lint_SUITE_data/bad_behaviour2.erl
new file mode 100644
index 0000000000..bb755ce18b
--- /dev/null
+++ b/lib/stdlib/test/erl_lint_SUITE_data/bad_behaviour2.erl
@@ -0,0 +1,6 @@
+-module(bad_behaviour2).
+
+-export([behaviour_info/1]).
+
+behaviour_info(callbacks) ->
+    undefined.
diff --git a/lib/stdlib/test/erl_lint_SUITE_data/callback1.erl b/lib/stdlib/test/erl_lint_SUITE_data/callback1.erl
new file mode 100644
index 0000000000..3cc5b51879
--- /dev/null
+++ b/lib/stdlib/test/erl_lint_SUITE_data/callback1.erl
@@ -0,0 +1,6 @@
+-module(callback1).
+
+-callback b1(I :: integer()) -> atom().
+-callback b2(A :: atom()) -> integer().
+
+-optional_callbacks([{b2,1}]).
diff --git a/lib/stdlib/test/erl_lint_SUITE_data/callback2.erl b/lib/stdlib/test/erl_lint_SUITE_data/callback2.erl
new file mode 100644
index 0000000000..211cf9f115
--- /dev/null
+++ b/lib/stdlib/test/erl_lint_SUITE_data/callback2.erl
@@ -0,0 +1,6 @@
+-module(callback2).
+
+-callback b1(I :: integer()) -> atom().
+-callback b2(A :: atom()) -> integer().
+
+-optional_callbacks([b1/1, b2/1]).
diff --git a/lib/stdlib/test/erl_lint_SUITE_data/callback3.erl b/lib/stdlib/test/erl_lint_SUITE_data/callback3.erl
new file mode 100644
index 0000000000..97b3ecb860
--- /dev/null
+++ b/lib/stdlib/test/erl_lint_SUITE_data/callback3.erl
@@ -0,0 +1,8 @@
+-module(callback3).
+
+-export([behaviour_info/1]).
+
+behaviour_info(callbacks) ->
+    [{f1, 1}];
+behaviour_info(_) ->
+    undefined.
diff --git a/lib/stdlib/test/erl_lint_SUITE_data/predef.erl b/lib/stdlib/test/erl_lint_SUITE_data/predef.erl
index ee9073aa67..3cb7bf40f1 100644
--- a/lib/stdlib/test/erl_lint_SUITE_data/predef.erl
+++ b/lib/stdlib/test/erl_lint_SUITE_data/predef.erl
@@ -5,8 +5,8 @@
 
 -export_type([array/0, digraph/0, gb_set/0]).
 
-%% Before Erlang/OTP 17.0 local re-definitions of pre-defined opaque
-%% types were ignored but did not generate any warning.
+%% Since Erlang/OTP 18.0 array() and so on are no longer pre-defined,
+%% so there is nothing special about them at all.
 -opaque array() :: atom().
 -opaque digraph() :: atom().
 -opaque gb_set() :: atom().
diff --git a/lib/stdlib/test/erl_pp_SUITE.erl b/lib/stdlib/test/erl_pp_SUITE.erl
index 927fe0b595..1d63c8e17e 100644
--- a/lib/stdlib/test/erl_pp_SUITE.erl
+++ b/lib/stdlib/test/erl_pp_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2006-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2006-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -42,7 +42,6 @@
 -export([ func/1, call/1, recs/1, try_catch/1, if_then/1,
 	  receive_after/1, bits/1, head_tail/1,
 	  cond1/1, block/1, case1/1, ops/1, messages/1,
-	  old_mnemosyne_syntax/1,
 	  import_export/1, misc_attrs/1, dialyzer_attrs/1,
 	  hook/1,
 	  neg_indent/1,
@@ -50,7 +49,7 @@
 
 	  otp_6321/1, otp_6911/1, otp_6914/1, otp_8150/1, otp_8238/1,
 	  otp_8473/1, otp_8522/1, otp_8567/1, otp_8664/1, otp_9147/1,
-          otp_10302/1, otp_10820/1, otp_11100/1]).
+          otp_10302/1, otp_10820/1, otp_11100/1, otp_11861/1]).
 
 %% Internal export.
 -export([ehook/6]).
@@ -77,13 +76,13 @@ groups() ->
     [{expr, [],
       [func, call, recs, try_catch, if_then, receive_after,
        bits, head_tail, cond1, block, case1, ops,
-       messages, old_mnemosyne_syntax, maps_syntax
+       messages, maps_syntax
     ]},
      {attributes, [], [misc_attrs, import_export, dialyzer_attrs]},
      {tickets, [],
       [otp_6321, otp_6911, otp_6914, otp_8150, otp_8238,
        otp_8473, otp_8522, otp_8567, otp_8664, otp_9147,
-       otp_10302, otp_10820, otp_11100]}].
+       otp_10302, otp_10820, otp_11100, otp_11861]}].
 
 init_per_suite(Config) ->
     Config.
@@ -491,7 +490,7 @@ cond1(Config) when is_list(Config) ->
                     [{cons,3,{atom,3,a},{cons,3,{atom,3,b},{nil,3}}}]},
                    {clause,4,[],[[{atom,4,true}]],
                     [{tuple,5,[{atom,5,x},{atom,5,y}]}]}]},
-    ?line CChars = lists:flatten(erl_pp:expr(C)),
+    CChars = flat_expr1(C),
 %    ?line "cond {foo,bar} -> [a,b]; true -> {x,y} end" = CChars,
     ?line "cond\n"
           "    {foo,bar} ->\n"
@@ -558,30 +557,9 @@ messages(Config) when is_list(Config) ->
         lists:flatten(erl_pp:form({error,{some,"error"}})),
     ?line true = "{warning,{some,\"warning\"}}\n" =:=
         lists:flatten(erl_pp:form({warning,{some,"warning"}})),
-    ?line true = "\n" =:= lists:flatten(erl_pp:form({eof,0})),
+    "\n" = flat_form({eof,0}),
     ok.
 
-old_mnemosyne_syntax(Config) when is_list(Config) ->
-    %% Since we have kept the ':-' token,
-    %% better test that we can pretty print it.
-    R = {rule,12,sales,2,
-         [{clause,12,
-           [{var,12,'E'},{atom,12,employee}],
-           [],
-           [{generate,13,
-             {var,13,'E'},
-             {call,13,{atom,13,table},[{atom,13,employee}]}},
-            {match,14,
-             {record_field,14,{var,14,'E'},{atom,14,salary}},
-             {atom,14,sales}}]}]},
-    ?line "sales(E, employee) :-\n"
-          "    E <- table(employee),\n"
-          "    E.salary = sales.\n" =
-        lists:flatten(erl_pp:form(R)),
-    ok.
-
-
-
 import_export(suite) ->
     [];
 import_export(Config) when is_list(Config) ->
@@ -638,59 +616,41 @@ hook(Config) when is_list(Config) ->
 do_hook(HookFun) ->
     Lc = parse_expr(binary_to_list(<<"[X || X <- [1,2,3]].">>)),
     H = HookFun(fun hook/4),
-    Expr = {call,0,{atom,0,fff},[{foo,Lc},{foo,Lc},{foo,Lc}]},
+    A0 = erl_anno:new(0),
+    Expr = {call,A0,{atom,A0,fff},[{foo,Lc},{foo,Lc},{foo,Lc}]},
     EChars = lists:flatten(erl_pp:expr(Expr, 0, H)),
-    Call = {call,0,{atom,0,foo},[Lc]},
-    Expr2 = {call,0,{atom,0,fff},[Call,Call,Call]},
+    Call = {call,A0,{atom,A0,foo},[Lc]},
+    Expr2 = {call,A0,{atom,A0,fff},[Call,Call,Call]},
     EChars2 = erl_pp:exprs([Expr2]),
     ?line true = EChars =:= lists:flatten(EChars2),
 
     EsChars = erl_pp:exprs([Expr], H),
     ?line true = EChars =:= lists:flatten(EsChars),
 
-    F = {function,1,ffff,0,[{clause,1,[],[],[Expr]}]},
+    A1 = erl_anno:new(1),
+    F = {function,A1,ffff,0,[{clause,A1,[],[],[Expr]}]},
     FuncChars = lists:flatten(erl_pp:function(F, H)),
-    F2 = {function,1,ffff,0,[{clause,1,[],[],[Expr2]}]},
+    F2 = {function,A1,ffff,0,[{clause,A1,[],[],[Expr2]}]},
     FuncChars2 = erl_pp:function(F2),
     ?line true = FuncChars =:= lists:flatten(FuncChars2),
     FFormChars = erl_pp:form(F, H),
     ?line true = FuncChars =:= lists:flatten(FFormChars),
 
-    A = {attribute,1,record,{r,[{record_field,1,{atom,1,a},Expr}]}},
+    A = {attribute,A1,record,{r,[{record_field,A1,{atom,A1,a},Expr}]}},
     AChars = lists:flatten(erl_pp:attribute(A, H)),
-    A2 = {attribute,1,record,{r,[{record_field,1,{atom,1,a},Expr2}]}},
+    A2 = {attribute,A1,record,{r,[{record_field,A1,{atom,A1,a},Expr2}]}},
     AChars2 = erl_pp:attribute(A2),
     ?line true = AChars =:= lists:flatten(AChars2),
     AFormChars = erl_pp:form(A, H),
     ?line true = AChars =:= lists:flatten(AFormChars),
 
-    R = {rule,0,sales,0,
-         [{clause,0,[{var,0,'E'},{atom,0,employee}],[],
-           [{generate,2,{var,2,'E'},
-             {call,2,{atom,2,table},[{atom,2,employee}]}},
-            {match,3,
-             {record_field,3,{var,3,'E'},{atom,3,salary}},
-             {foo,Expr}}]}]},
-    RChars = lists:flatten(erl_pp:rule(R, H)),
-    R2 = {rule,0,sales,0,
-          [{clause,0,[{var,0,'E'},{atom,0,employee}],[],
-            [{generate,2,{var,2,'E'},
-              {call,2,{atom,2,table},[{atom,2,employee}]}},
-             {match,3,
-              {record_field,3,{var,3,'E'},{atom,3,salary}},
-              {call,0,{atom,0,foo},[Expr2]}}]}]},
-    RChars2 = erl_pp:rule(R2),
-    ?line true = RChars =:= lists:flatten(RChars2),
-    ARChars = erl_pp:form(R, H),
-    ?line true = RChars =:= lists:flatten(ARChars),
-
     ?line "INVALID-FORM:{foo,bar}:" = lists:flatten(erl_pp:expr({foo,bar})),
 
     %% A list (as before R6), not a list of lists.
-    G = [{op,1,'>',{atom,1,a},{foo,{atom,1,b}}}], % not a proper guard
+    G = [{op,A1,'>',{atom,A1,a},{foo,{atom,A1,b}}}], % not a proper guard
     GChars = lists:flatten(erl_pp:guard(G, H)),
-    G2 = [{op,1,'>',{atom,1,a},
-           {call,0,{atom,0,foo},[{atom,1,b}]}}], % not a proper guard
+    G2 = [{op,A1,'>',{atom,A1,a},
+           {call,A0,{atom,A0,foo},[{atom,A1,b}]}}], % not a proper guard
     GChars2 = erl_pp:guard(G2),
     ?line true = GChars =:= lists:flatten(GChars2),
 
@@ -701,14 +661,14 @@ do_hook(HookFun) ->
     ?line true = EChars =:= lists:flatten(XEChars2),
 
     %% Note: no leading spaces before "begin".
-    Block = {block,0,[{match,0,{var,0,'A'},{integer,0,3}},
-                      {atom,0,true}]},
+    Block = {block,A0,[{match,A0,{var,A0,'A'},{integer,A0,3}},
+                      {atom,A0,true}]},
     ?line "begin\n                     A =" ++ _ =
                lists:flatten(erl_pp:expr(Block, 17, none)),
 
     %% Special...
     ?line true =
-        "{some,value}" =:= lists:flatten(erl_pp:expr({value,0,{some,value}})),
+        "{some,value}" =:= lists:flatten(erl_pp:expr({value,A0,{some,value}})),
 
     %% Silly...
     ?line true =
@@ -716,8 +676,8 @@ do_hook(HookFun) ->
               flat_expr({'if',0,[{clause,0,[],[],[{atom,0,0}]}]}),
 
     %% More compatibility: before R6
-    OldIf = {'if',0,[{clause,0,[],[{atom,0,true}],[{atom,0,b}]}]},
-    NewIf = {'if',0,[{clause,0,[],[[{atom,0,true}]],[{atom,0,b}]}]},
+    OldIf = {'if',A0,[{clause,A0,[],[{atom,A0,true}],[{atom,A0,b}]}]},
+    NewIf = {'if',A0,[{clause,A0,[],[[{atom,A0,true}]],[{atom,A0,b}]}]},
     OldIfChars = lists:flatten(erl_pp:expr(OldIf)),
     NewIfChars = lists:flatten(erl_pp:expr(NewIf)),
     ?line true = OldIfChars =:= NewIfChars,
@@ -733,7 +693,8 @@ ehook(HE, I, P, H, foo, bar) ->
     hook(HE, I, P, H).
 
 hook({foo,E}, I, P, H) ->
-    erl_pp:expr({call,0,{atom,0,foo},[E]}, I, P, H).
+    A = erl_anno:new(0),
+    erl_pp:expr({call,A,{atom,A,foo},[E]}, I, P, H).
 
 neg_indent(suite) ->
     [];
@@ -816,7 +777,7 @@ otp_6911(Config) when is_list(Config) ->
              {var,6,'X'},
              [{clause,7,[{atom,7,true}],[],[{integer,7,12}]},
               {clause,8,[{atom,8,false}],[],[{integer,8,14}]}]}]}]},
-    ?line Chars = lists:flatten(erl_pp:form(F)),
+    Chars = flat_form(F),
     ?line "thomas(X) ->\n"
           "    case X of\n"
           "        true ->\n"
@@ -874,6 +835,7 @@ type_examples() ->
      {ex3,<<"-type paren() :: (ann2()). ">>},
      {ex4,<<"-type t1() :: atom(). ">>},
      {ex5,<<"-type t2() :: [t1()]. ">>},
+     {ex56,<<"-type integer(A) :: A. ">>},
      {ex6,<<"-type t3(Atom) :: integer(Atom). ">>},
      {ex7,<<"-type '\\'t::4'() :: t3('\\'foobar'). ">>},
      {ex8,<<"-type t5() :: {t1(), t3(foo)}. ">>},
@@ -1125,10 +1087,11 @@ otp_10302(Config) when is_list(Config) ->
 
     Opts = [{hook, fun unicode_hook/4},{encoding,unicode}],
     Lc = parse_expr("[X || X <- [\"\x{400}\",\"\xFF\"]]."),
-    Expr = {call,0,{atom,0,fff},[{foo,{foo,Lc}},{foo,{foo,Lc}}]},
+    A0 = erl_anno:new(0),
+    Expr = {call,A0,{atom,A0,fff},[{foo,{foo,Lc}},{foo,{foo,Lc}}]},
     EChars = lists:flatten(erl_pp:expr(Expr, 0, Opts)),
-    Call = {call,0,{atom,0,foo},[{call,0,{atom,0,foo},[Lc]}]},
-    Expr2 = {call,0,{atom,0,fff},[Call,Call]},
+    Call = {call,A0,{atom,A0,foo},[{call,A0,{atom,A0,foo},[Lc]}]},
+    Expr2 = {call,A0,{atom,A0,fff},[Call,Call]},
     EChars2 = erl_pp:exprs([Expr2], U),
     EChars = lists:flatten(EChars2),
     [$\x{400},$\x{400}] = [C || C <- EChars, C > 255],
@@ -1138,7 +1101,8 @@ otp_10302(Config) when is_list(Config) ->
     ok.
 
 unicode_hook({foo,E}, I, P, H) ->
-    erl_pp:expr({call,0,{atom,0,foo},[E]}, I, P, H).
+    A = erl_anno:new(0),
+    erl_pp:expr({call,A,{atom,A,foo},[E]}, I, P, H).
 
 otp_10820(doc) ->
     "OTP-10820. Unicode filenames.";
@@ -1178,34 +1142,45 @@ otp_11100(Config) when is_list(Config) ->
     %% Cannot trigger the use of the hook function with export/import.
     "-export([{fy,a}/b]).\n" =
         pf({attribute,1,export,[{{fy,a},b}]}),
+    A1 = erl_anno:new(1),
     "-type foo() :: integer(INVALID-FORM:{foo,bar}:).\n" =
-        pf({attribute,1,type,{foo,{type,1,integer,[{foo,bar}]},[]}}),
-    pf({attribute,1,type,
-        {a,{type,1,range,[{integer,1,1},{foo,bar}]},[]}}),
+        pf({attribute,A1,type,{foo,{type,A1,integer,[{foo,bar}]},[]}}),
+    pf({attribute,A1,type,
+        {a,{type,A1,range,[{integer,A1,1},{foo,bar}]},[]}}),
     "-type foo(INVALID-FORM:{foo,bar}:) :: A.\n" =
-        pf({attribute,1,type,{foo,{var,1,'A'},[{foo,bar}]}}),
+        pf({attribute,A1,type,{foo,{var,A1,'A'},[{foo,bar}]}}),
     "-type foo() :: (INVALID-FORM:{foo,bar}: :: []).\n" =
-        pf({attribute,1,type,
-            {foo,{paren_type,1,
-                  [{ann_type,1,[{foo,bar},{type,1,nil,[]}]}]},
+        pf({attribute,A1,type,
+            {foo,{paren_type,A1,
+                  [{ann_type,A1,[{foo,bar},{type,A1,nil,[]}]}]},
              []}}),
     "-type foo() :: <<_:INVALID-FORM:{foo,bar}:>>.\n" =
-        pf({attribute,1,type,
-            {foo,{type,1,binary,[{foo,bar},{integer,1,0}]},[]}}),
+        pf({attribute,A1,type,
+            {foo,{type,A1,binary,[{foo,bar},{integer,A1,0}]},[]}}),
     "-type foo() :: <<_:10, _:_*INVALID-FORM:{foo,bar}:>>.\n" =
-        pf({attribute,1,type,
-            {foo,{type,1,binary,[{integer,1,10},{foo,bar}]},[]}}),
+        pf({attribute,A1,type,
+            {foo,{type,A1,binary,[{integer,A1,10},{foo,bar}]},[]}}),
     "-type foo() :: #r{INVALID-FORM:{foo,bar}: :: integer()}.\n" =
-        pf({attribute,1,type,
-            {foo,{type,1,record,
-                  [{atom,1,r},
-                   {type,1,field_type,
-                    [{foo,bar},{type,1,integer,[]}]}]},
+        pf({attribute,A1,type,
+            {foo,{type,A1,record,
+                  [{atom,A1,r},
+                   {type,A1,field_type,
+                    [{foo,bar},{type,A1,integer,[]}]}]},
              []}}),
     ok.
 
+otp_11861(doc) ->
+    "OTP-11861. behaviour_info() and -callback.";
+otp_11861(suite) -> [];
+otp_11861(Config) when is_list(Config) ->
+    "-optional_callbacks([bar/0]).\n" =
+        pf({attribute,3,optional_callbacks,[{bar,0}]}),
+    "-optional_callbacks([{bar,1,bad}]).\n" =
+        pf({attribute,4,optional_callbacks,[{bar,1,bad}]}),
+    ok.
+
 pf(Form) ->
-    lists:flatten(erl_pp:form(Form,none)).
+    lists:flatten(erl_pp:form(Form, none)).
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
@@ -1270,9 +1245,18 @@ strip_module_info(Bin) ->
     <<R:Start/binary,_/binary>> = Bin,
     R.
 
-flat_expr(Expr) ->
+flat_expr1(Expr0) ->
+    Expr = erl_parse:new_anno(Expr0),
+    lists:flatten(erl_pp:expr(Expr)).
+
+flat_expr(Expr0) ->
+    Expr = erl_parse:new_anno(Expr0),
     lists:flatten(erl_pp:expr(Expr, -1, none)).
 
+flat_form(Form0) ->
+    Form = erl_parse:new_anno(Form0),
+    lists:flatten(erl_pp:form(Form)).
+
 pp_forms(Bin) ->
     pp_forms(Bin, none).
 
diff --git a/lib/stdlib/test/erl_scan_SUITE.erl b/lib/stdlib/test/erl_scan_SUITE.erl
index 9be9f641c8..fb85055b6c 100644
--- a/lib/stdlib/test/erl_scan_SUITE.erl
+++ b/lib/stdlib/test/erl_scan_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1998-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1998-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -138,7 +138,7 @@ iso88591(Config) when is_list(Config) ->
 		   A1s = [$h,$ä,$r],
 		   A2s = [$ö,$r,$e],
 		   %% Test parsing atom and variable characters.
-		   {ok,Ts1,_} = erl_scan:string(V1s ++ " " ++ V2s ++
+		   {ok,Ts1,_} = erl_scan_string(V1s ++ " " ++ V2s ++
 					       "\327" ++
 					       A1s ++ " " ++ A2s),
 		   V1s = atom_to_list(element(3, nth(1, Ts1))),
@@ -151,7 +151,7 @@ iso88591(Config) when is_list(Config) ->
 		   %% Test parsing and printing strings.
 		   S1 = V1s ++ "\327" ++ A1s ++ "\250" ++ A2s,
 		   S1s = "\"" ++ S1 ++ "\"",
-		   {ok,Ts2,_} = erl_scan:string(S1s),
+		   {ok,Ts2,_} = erl_scan_string(S1s),
 		   S1 = element(3, nth(1, Ts2)),
 		   S1s = flatten(print(element(3, nth(1, Ts2)))),
 		   ok				%It all worked
@@ -219,14 +219,14 @@ atoms() ->
     test_string([39,65,200,39], [{atom,{1,1},'AÈ'}]),
     test_string("ärlig östen", [{atom,{1,1},ärlig},{atom,{1,7},östen}]),
     ?line {ok,[{atom,_,'$a'}],{1,6}} =
-        erl_scan:string("'$\\a'", {1,1}),
+        erl_scan_string("'$\\a'", {1,1}),
     ?line test("'$\\a'"),
     ok.
 
 punctuations() ->
     L = ["<<", "<-", "<=", "<", ">>", ">=", ">", "->", "--",
          "-", "++", "+", "=:=", "=/=", "=<", "=>", "==", "=", "/=",
-         "/", "||", "|", ":=", ":-", "::", ":"],
+         "/", "||", "|", ":=", "::", ":"],
     %% One token at a time:
     [begin
          W = list_to_atom(S),
@@ -268,24 +268,24 @@ punctuations() ->
 
 comments() ->
     ?line test("a %%\n b"),
-    ?line {ok,[],1} = erl_scan:string("%"),
+    {ok,[],1} = erl_scan_string("%"),
     ?line test("a %%\n b"),
     {ok,[{atom,{1,1},a},{atom,{2,2},b}],{2,3}} =
-        erl_scan:string("a %%\n b",{1,1}),
+        erl_scan_string("a %%\n b", {1,1}),
     {ok,[{atom,{1,1},a},{comment,{1,3},"%%"},{atom,{2,2},b}],{2,3}} =
-        erl_scan:string("a %%\n b",{1,1}, [return_comments]),
+        erl_scan_string("a %%\n b",{1,1}, [return_comments]),
     {ok,[{atom,{1,1},a},
          {white_space,{1,2}," "},
          {white_space,{1,5},"\n "},
          {atom,{2,2},b}],
      {2,3}} =
-        erl_scan:string("a %%\n b",{1,1},[return_white_spaces]),
+        erl_scan_string("a %%\n b",{1,1},[return_white_spaces]),
     {ok,[{atom,{1,1},a},
          {white_space,{1,2}," "},
          {comment,{1,3},"%%"},
          {white_space,{1,5},"\n "},
          {atom,{2,2},b}],
-     {2,3}} = erl_scan:string("a %%\n b",{1,1},[return]),
+     {2,3}} = erl_scan_string("a %%\n b",{1,1},[return]),
     ok.
 
 errors() ->
@@ -337,11 +337,11 @@ base_integers() ->
              erl_scan:string(Str)
      end || {BS,S} <- [{"3","3"},{"15","f"}, {"12","c"}] ],
 
-    ?line {ok,[{integer,1,239},{'@',1}],1} = erl_scan:string("16#ef@"),
+    {ok,[{integer,1,239},{'@',1}],1} = erl_scan_string("16#ef@"),
     {ok,[{integer,{1,1},239},{'@',{1,6}}],{1,7}} =
-        erl_scan:string("16#ef@", {1,1}, []),
+        erl_scan_string("16#ef@", {1,1}, []),
     {ok,[{integer,{1,1},14},{atom,{1,5},g@}],{1,7}} =
-        erl_scan:string("16#eg@", {1,1}, []),
+        erl_scan_string("16#eg@", {1,1}, []),
 
     ok.
 
@@ -382,8 +382,8 @@ dots() ->
                     {ok,[{'.',{1,1}},{atom,{1,2},a}],{1,3}}}
           ],
     [begin
-         R = erl_scan:string(S),
-         R2 = erl_scan:string(S, {1,1}, [])
+         R = erl_scan_string(S),
+         R2 = erl_scan_string(S, {1,1}, [])
      end || {S, R, R2} <- Dot],
 
     ?line {ok,[{dot,_}=T1],{1,2}} = erl_scan:string(".", {1,1}, text),
@@ -417,7 +417,7 @@ dots() ->
                {white_space,{1,4},"\n"},
                {dot,{2,1}}],
            {2,3}}, ""} =
-        erl_scan:tokens(C, "\n. ", {1,1}, return), % any loc, any options
+        erl_scan_tokens(C, "\n. ", {1,1}, return), % any loc, any options
 
     ?line [test_string(S, R) ||
               {S, R} <- [{".$\n",   [{'.',{1,1}},{char,{1,2},$\n}]},
@@ -511,7 +511,7 @@ eof() ->
     %% An error before R13A.
     %% ?line {done,Err={error,{1,erl_scan,scan},1},eof} =
     ?line {done,{ok,[{atom,1,abra}],1},eof} =
-        erl_scan:tokens(C2, eof, 1),
+        erl_scan_tokens(C2, eof, 1),
 
     %% With column.
     ?line {more, C3} = erl_scan:tokens([],"    \n",{1,1}),
@@ -520,7 +520,7 @@ eof() ->
     %% An error before R13A.
     %% ?line {done,{error,{{1,1},erl_scan,scan},{1,5}},eof} =
     ?line {done,{ok,[{atom,_,abra}],{1,5}},eof} =
-        erl_scan:tokens(C4, eof, 1),
+        erl_scan_tokens(C4, eof, 1),
 
     %% Robert's scanner returns "" as LeftoverChars;
     %% the R12B scanner returns eof as LeftoverChars: (eof is correct)
@@ -528,26 +528,26 @@ eof() ->
     %% An error before R13A.
     %% ?line {done,{error,{1,erl_scan,scan},1},eof} =
     ?line {done,{ok,[{atom,1,a}],1},eof} =
-        erl_scan:tokens(C5,eof,1),
+        erl_scan_tokens(C5,eof,1),
 
     %% With column.
     {more, C6} = erl_scan:tokens([], "a", {1,1}),
     %% An error before R13A.
     %% {done,{error,{1,erl_scan,scan},1},eof} =
     {done,{ok,[{atom,{1,1},a}],{1,2}},eof} =
-        erl_scan:tokens(C6,eof,1),
+        erl_scan_tokens(C6,eof,1),
 
     %% A dot followed by eof is special:
     ?line {more, C} = erl_scan:tokens([], "a.", 1),
-    ?line {done,{ok,[{atom,1,a},{dot,1}],1},eof} = erl_scan:tokens(C,eof,1),
-    ?line {ok,[{atom,1,foo},{dot,1}],1} = erl_scan:string("foo."),
+    {done,{ok,[{atom,1,a},{dot,1}],1},eof} = erl_scan_tokens(C,eof,1),
+    {ok,[{atom,1,foo},{dot,1}],1} = erl_scan_string("foo."),
 
     %% With column.
     {more, CCol} = erl_scan:tokens([], "a.", {1,1}),
     {done,{ok,[{atom,{1,1},a},{dot,{1,2}}],{1,3}},eof} =
-        erl_scan:tokens(CCol,eof,1),
+        erl_scan_tokens(CCol,eof,1),
     {ok,[{atom,{1,1},foo},{dot,{1,4}}],{1,5}} =
-        erl_scan:string("foo.", {1,1}, []),
+        erl_scan_string("foo.", {1,1}, []),
 
     ok.
 
@@ -628,23 +628,23 @@ crashes() ->
 options() ->
     %% line and column are not options, but tested here
     ?line {ok,[{atom,1,foo},{white_space,1," "},{comment,1,"% bar"}], 1} =
-        erl_scan:string("foo % bar", 1, return),
+        erl_scan_string("foo % bar", 1, return),
     ?line {ok,[{atom,1,foo},{white_space,1," "}],1} =
-        erl_scan:string("foo % bar", 1, return_white_spaces),
+        erl_scan_string("foo % bar", 1, return_white_spaces),
     ?line {ok,[{atom,1,foo},{comment,1,"% bar"}],1} =
-        erl_scan:string("foo % bar", 1, return_comments),
+        erl_scan_string("foo % bar", 1, return_comments),
     ?line {ok,[{atom,17,foo}],17} =
-        erl_scan:string("foo % bar", 17),
+        erl_scan_string("foo % bar", 17),
     ?line {'EXIT',{function_clause,_}} =
         (catch {foo,
                 erl_scan:string("foo % bar", {a,1}, [])}), % type error
     ?line {ok,[{atom,_,foo}],{17,18}} =
-        erl_scan:string("foo % bar", {17,9}, []),
+        erl_scan_string("foo % bar", {17,9}, []),
     ?line {'EXIT',{function_clause,_}} =
         (catch {foo,
                 erl_scan:string("foo % bar", {1,0}, [])}), % type error
     ?line {ok,[{foo,1}],1} =
-        erl_scan:string("foo % bar",1, [{reserved_word_fun,
+        erl_scan_string("foo % bar",1, [{reserved_word_fun,
                                          fun(W) -> W =:= foo end}]),
     ?line {'EXIT',{badarg,_}} =
         (catch {foo,
@@ -706,8 +706,9 @@ token_info() ->
 attributes_info() ->
     ?line {'EXIT',_} =
         (catch {foo,erl_scan:attributes_info(foo)}), % type error
-    ?line [{line,18}] = erl_scan:attributes_info(18),
-    ?line {location,19} = erl_scan:attributes_info(19, location),
+    [{line,18}] = erl_scan:attributes_info(erl_anno:new(18)),
+    {location,19} =
+        erl_scan:attributes_info(erl_anno:new(19), location),
     ?line {ok,[{atom,A0,foo}],_} = erl_scan:string("foo", 19, [text]),
     ?line {location,19} = erl_scan:attributes_info(A0, location),
 
@@ -735,7 +736,9 @@ attributes_info() ->
 
 set_attribute() ->
     F = fun(Line) -> -Line end,
-    ?line -2 = erl_scan:set_attribute(line, 2, F),
+    Anno2 = erl_anno:new(2),
+    A0 = erl_scan:set_attribute(line, Anno2, F),
+    {line, -2} = erl_scan:attributes_info(A0, line),
     ?line {ok,[{atom,A1,foo}],_} = erl_scan:string("foo", {9,17}),
     ?line A2 = erl_scan:set_attribute(line, A1, F),
     ?line {line,-9} = erl_scan:attributes_info(A2, line),
@@ -765,10 +768,15 @@ set_attribute() ->
 
     ?line {ok,[{atom,A6,foo}],_} = erl_scan:string("foo", 11, [text]),
     ?line A7 = erl_scan:set_attribute(line, A6, F2),
-    ?line {line,{17,11}} = erl_scan:attributes_info(A7, line),
+    %% Incompatible with pre 18:
+    %% {line,{17,11}} = erl_scan:attributes_info(A7, line),
+    {line,17} = erl_scan:attributes_info(A7, line),
     ?line {location,{17,11}} = % mixed up
         erl_scan:attributes_info(A7, location),
-    ?line [{line,{17,11}},{text,"foo"}] =
+    %% Incompatible with pre 18:
+    %% [{line,{17,11}},{text,"foo"}] =
+    %%   erl_scan:attributes_info(A7, [line,column,text]),
+    [{line,17},{column,11},{text,"foo"}] =
         erl_scan:attributes_info(A7, [line,column,text]),
 
     ?line {'EXIT',_} =
@@ -776,9 +784,13 @@ set_attribute() ->
     ?line {'EXIT',{badarg,_}} =
         (catch {foo, erl_scan:set_attribute(column, [], F2)}), % type error
 
+    Attr10 = erl_anno:new(8),
+    Attr20 = erl_scan:set_attribute(line, Attr10,
+                                    fun(L) -> {nos,'X',L} end),
     %% OTP-9412
-    ?line 8 = erl_scan:set_attribute(line, [{line,{nos,'X',8}}],
-                                     fun({nos,_V,VL}) -> VL end),
+    Attr30 = erl_scan:set_attribute(line, Attr20,
+                                    fun({nos,_V,VL}) -> VL end),
+    8 = erl_anno:to_term(Attr30),
     ok.
 
 column_errors() ->
@@ -812,7 +824,7 @@ white_spaces() ->
                {white_space,_,"   "},
                {atom,_,a},
                {white_space,_,"\n"}],
-           _} = erl_scan:string("\r   a\n", {1,1}, return),
+           _} = erl_scan_string("\r   a\n", {1,1}, return),
     ?line test("\r   a\n"),
     L = "{\"a\nb\", \"a\\nb\",\nabc\r,def}.\n\n",
     ?line {ok,[{'{',_},
@@ -829,7 +841,7 @@ white_spaces() ->
                {'}',_},
                {dot,_},
                {white_space,_,"\n"}],
-           _} = erl_scan:string(L, {1,1}, return),
+           _} = erl_scan_string(L, {1,1}, return),
     ?line test(L),
     ?line test("\"\n\"\n"),
     ?line test("\n\r\n"),
@@ -846,7 +858,7 @@ white_spaces() ->
 
 unicode() ->
     ?line {ok,[{char,1,83},{integer,1,45}],1} =
-        erl_scan:string("$\\12345"), % not unicode
+        erl_scan_string("$\\12345"), % not unicode
 
     ?line {error,{1,erl_scan,{illegal,character}},1} =
         erl_scan:string([1089]),
@@ -858,7 +870,7 @@ unicode() ->
         erl_scan:string("'a"++[1089]++"b'", {1,1}),
     ?line test("\"a"++[1089]++"b\""),
     {ok,[{char,1,1}],1} =
-        erl_scan:string([$$,$\\,$^,1089], 1),
+        erl_scan_string([$$,$\\,$^,1089], 1),
 
     {error,{1,erl_scan,Error},1} =
         erl_scan:string("\"qa\x{aaa}", 1),
@@ -870,13 +882,13 @@ unicode() ->
         erl_scan:string("'qa\\x{aaa}'",{1,1}),
 
     {ok,[{char,1,1089}],1} =
-        erl_scan:string([$$,1089], 1),
+        erl_scan_string([$$,1089], 1),
     {ok,[{char,1,1089}],1} =
-        erl_scan:string([$$,$\\,1089], 1),
+        erl_scan_string([$$,$\\,1089], 1),
 
     Qs = "$\\x{aaa}",
     {ok,[{char,1,$\x{aaa}}],1} =
-        erl_scan:string(Qs, 1),
+        erl_scan_string(Qs, 1),
     {ok,[Q2],{1,9}} =
         erl_scan:string("$\\x{aaa}", {1,1}, [text]),
     [{category,char},{column,1},{length,8},
@@ -884,19 +896,19 @@ unicode() ->
         erl_scan:token_info(Q2),
 
     U1 = "\"\\x{aaa}\"",
-    {ok,
-     [{string,[{line,1},{column,1},{text,"\"\\x{aaa}\""}],[2730]}],
-     {1,10}} = erl_scan:string(U1, {1,1}, [text]),
-    {ok,[{string,1,[2730]}],1} = erl_scan:string(U1, 1),
+    {ok,[{string,A1,[2730]}],{1,10}} = erl_scan:string(U1, {1,1}, [text]),
+    [{line,1},{column,1},{text,"\"\\x{aaa}\""}] =
+        erl_scan:attributes_info(A1, [line, column, text]),
+    {ok,[{string,1,[2730]}],1} = erl_scan_string(U1, 1),
 
     U2 = "\"\\x41\\x{fff}\\x42\"",
-    {ok,[{string,1,[$\x41,$\x{fff},$\x42]}],1} = erl_scan:string(U2, 1),
+    {ok,[{string,1,[$\x41,$\x{fff},$\x42]}],1} = erl_scan_string(U2, 1),
 
     U3 = "\"a\n\\x{fff}\n\"",
-    {ok,[{string,1,[$a,$\n,$\x{fff},$\n]}],3} = erl_scan:string(U3, 1),
+    {ok,[{string,1,[$a,$\n,$\x{fff},$\n]}],3} = erl_scan_string(U3, 1),
 
     U4 = "\"\\^\n\\x{aaa}\\^\n\"",
-    {ok,[{string,1,[$\n,$\x{aaa},$\n]}],3} = erl_scan:string(U4, 1),
+    {ok,[{string,1,[$\n,$\x{aaa},$\n]}],3} = erl_scan_string(U4, 1),
 
     %% Keep these tests:
     ?line test(Qs),
@@ -906,15 +918,15 @@ unicode() ->
     ?line test(U4),
 
     Str1 = "\"ab" ++ [1089] ++ "cd\"",
-    {ok,[{string,1,[$a,$b,1089,$c,$d]}],1} = erl_scan:string(Str1, 1),
+    {ok,[{string,1,[$a,$b,1089,$c,$d]}],1} = erl_scan_string(Str1, 1),
     {ok,[{string,{1,1},[$a,$b,1089,$c,$d]}],{1,8}} =
-        erl_scan:string(Str1, {1,1}),
+        erl_scan_string(Str1, {1,1}),
     ?line test(Str1),
     Comment = "%% "++[1089],
     {ok,[{comment,1,[$%,$%,$\s,1089]}],1} =
-        erl_scan:string(Comment, 1, [return]),
+        erl_scan_string(Comment, 1, [return]),
     {ok,[{comment,{1,1},[$%,$%,$\s,1089]}],{1,5}} =
-        erl_scan:string(Comment, {1,1}, [return]),
+        erl_scan_string(Comment, {1,1}, [return]),
     ok.
 
 more_chars() ->
@@ -923,12 +935,12 @@ more_chars() ->
 
     %% All kinds of tests...
     ?line {ok,[{char,_,123}],{1,4}} =
-        erl_scan:string("$\\{",{1,1}),
+        erl_scan_string("$\\{",{1,1}),
     ?line {more, C1} = erl_scan:tokens([], "$\\{", {1,1}),
     ?line {done,{ok,[{char,_,123}],{1,4}},eof} =
-        erl_scan:tokens(C1, eof, 1),
+        erl_scan_tokens(C1, eof, 1),
     ?line {ok,[{char,1,123},{atom,1,a},{'}',1}],1} =
-        erl_scan:string("$\\{a}"),
+        erl_scan_string("$\\{a}"),
 
     ?line {error,{{1,1},erl_scan,char},{1,4}} =
         erl_scan:string("$\\x", {1,1}),
@@ -993,11 +1005,11 @@ otp_10302(Config) when is_list(Config) ->
     {error,{{1,1},erl_scan,{illegal,atom}},{1,12}} =
         erl_scan:string("'qa\\x{aaa}'",{1,1}),
 
-    {ok,[{char,1,1089}],1} = erl_scan:string([$$,1089], 1),
-    {ok,[{char,1,1089}],1} = erl_scan:string([$$,$\\,1089],1),
+    {ok,[{char,1,1089}],1} = erl_scan_string([$$,1089], 1),
+    {ok,[{char,1,1089}],1} = erl_scan_string([$$,$\\,1089],1),
 
     Qs = "$\\x{aaa}",
-    {ok,[{char,1,2730}],1} = erl_scan:string(Qs,1),
+    {ok,[{char,1,2730}],1} = erl_scan_string(Qs, 1),
     {ok,[Q2],{1,9}} = erl_scan:string(Qs,{1,1},[text]),
     [{category,char},{column,1},{length,8},
      {line,1},{symbol,16#aaa},{text,Qs}] =
@@ -1011,19 +1023,19 @@ otp_10302(Config) when is_list(Config) ->
      {symbol,[16#aaa]},{text,U1}] = erl_scan:token_info(T1, Tags),
 
     U2 = "\"\\x41\\x{fff}\\x42\"",
-    {ok,[{string,1,[65,4095,66]}],1} = erl_scan:string(U2, 1),
+    {ok,[{string,1,[65,4095,66]}],1} = erl_scan_string(U2, 1),
 
     U3 = "\"a\n\\x{fff}\n\"",
-    {ok,[{string,1,[97,10,4095,10]}],3} = erl_scan:string(U3, 1),
+    {ok,[{string,1,[97,10,4095,10]}],3} = erl_scan_string(U3, 1),
 
     U4 = "\"\\^\n\\x{aaa}\\^\n\"",
-    {ok,[{string,1,[10,2730,10]}],3} = erl_scan:string(U4, 1,[]),
+    {ok,[{string,1,[10,2730,10]}],3} = erl_scan_string(U4, 1,[]),
 
     Str1 = "\"ab" ++ [1089] ++ "cd\"",
     {ok,[{string,1,[97,98,1089,99,100]}],1} =
-        erl_scan:string(Str1,1),
+        erl_scan_string(Str1,1),
     {ok,[{string,{1,1},[97,98,1089,99,100]}],{1,8}} =
-        erl_scan:string(Str1, {1,1}),
+        erl_scan_string(Str1, {1,1}),
 
     OK1 = 16#D800-1,
     OK2 = 16#DFFF+1,
@@ -1038,19 +1050,19 @@ otp_10302(Config) when is_list(Config) ->
     IllegalL = [Illegal1,Illegal2,Illegal3,Illegal4],
 
     [{ok,[{comment,1,[$%,$%,$\s,OK]}],1} =
-         erl_scan:string("%% "++[OK], 1, [return]) ||
+         erl_scan_string("%% "++[OK], 1, [return]) ||
         OK <- OKL],
     {ok,[{comment,_,[$%,$%,$\s,OK1]}],{1,5}} =
-        erl_scan:string("%% "++[OK1], {1,1}, [return]),
+        erl_scan_string("%% "++[OK1], {1,1}, [return]),
     [{error,{1,erl_scan,{illegal,character}},1} =
          erl_scan:string("%% "++[Illegal], 1, [return]) ||
         Illegal <- IllegalL],
     {error,{{1,1},erl_scan,{illegal,character}},{1,5}} =
         erl_scan:string("%% "++[Illegal1], {1,1}, [return]),
 
-    [{ok,[],1} = erl_scan:string("%% "++[OK], 1, []) ||
+    [{ok,[],1} = erl_scan_string("%% "++[OK], 1, []) ||
         OK <- OKL],
-    {ok,[],{1,5}} = erl_scan:string("%% "++[OK1], {1,1}, []),
+    {ok,[],{1,5}} = erl_scan_string("%% "++[OK1], {1,1}, []),
     [{error,{1,erl_scan,{illegal,character}},1} =
          erl_scan:string("%% "++[Illegal], 1, []) ||
         Illegal <- IllegalL],
@@ -1058,7 +1070,7 @@ otp_10302(Config) when is_list(Config) ->
         erl_scan:string("%% "++[Illegal1], {1,1}, []),
 
     [{ok,[{string,{1,1},[OK]}],{1,4}} =
-        erl_scan:string("\""++[OK]++"\"",{1,1}) ||
+        erl_scan_string("\""++[OK]++"\"",{1,1}) ||
         OK <- OKL],
     [{error,{{1,2},erl_scan,{illegal,character}},{1,3}} =
          erl_scan:string("\""++[OK]++"\"",{1,1}) ||
@@ -1069,93 +1081,93 @@ otp_10302(Config) when is_list(Config) ->
         Illegal <- IllegalL],
 
     {ok,[{char,{1,1},OK1}],{1,3}} =
-        erl_scan:string([$$,OK1],{1,1}),
+        erl_scan_string([$$,OK1],{1,1}),
     {error,{{1,1},erl_scan,{illegal,character}},{1,2}} =
         erl_scan:string([$$,Illegal1],{1,1}),
 
     {ok,[{char,{1,1},OK1}],{1,4}} =
-        erl_scan:string([$$,$\\,OK1],{1,1}),
+        erl_scan_string([$$,$\\,OK1],{1,1}),
     {error,{{1,1},erl_scan,{illegal,character}},{1,4}} =
         erl_scan:string([$$,$\\,Illegal1],{1,1}),
 
     {ok,[{string,{1,1},[55295]}],{1,5}} =
-        erl_scan:string("\"\\"++[OK1]++"\"",{1,1}),
+        erl_scan_string("\"\\"++[OK1]++"\"",{1,1}),
     {error,{{1,2},erl_scan,{illegal,character}},{1,4}} =
         erl_scan:string("\"\\"++[Illegal1]++"\"",{1,1}),
 
     {ok,[{char,{1,1},OK1}],{1,10}} =
-        erl_scan:string("$\\x{D7FF}",{1,1}),
+        erl_scan_string("$\\x{D7FF}",{1,1}),
     {error,{{1,1},erl_scan,{illegal,character}},{1,10}} =
         erl_scan:string("$\\x{D800}",{1,1}),
 
     %% Not erl_scan, but erl_parse.
-    {integer,0,1} = erl_parse:abstract(1),
-    Float = 3.14, {float,0,Float} = erl_parse:abstract(Float),
-    {nil,0} = erl_parse:abstract([]),
+    {integer,0,1} = erl_parse_abstract(1),
+    Float = 3.14, {float,0,Float} = erl_parse_abstract(Float),
+    {nil,0} = erl_parse_abstract([]),
     {bin,0,
      [{bin_element,0,{integer,0,1},default,default},
       {bin_element,0,{integer,0,2},default,default}]} =
-        erl_parse:abstract(<<1,2>>),
+        erl_parse_abstract(<<1,2>>),
     {cons,0,{tuple,0,[{atom,0,a}]},{atom,0,b}} =
-        erl_parse:abstract([{a} | b]),
-    {string,0,"str"} = erl_parse:abstract("str"),
+        erl_parse_abstract([{a} | b]),
+    {string,0,"str"} = erl_parse_abstract("str"),
     {cons,0,
      {integer,0,$a},
      {cons,0,{integer,0,55296},{string,0,"c"}}} =
-        erl_parse:abstract("a"++[55296]++"c"),
+        erl_parse_abstract("a"++[55296]++"c"),
 
     Line = 17,
-    {integer,Line,1} = erl_parse:abstract(1, Line),
-    Float = 3.14, {float,Line,Float} = erl_parse:abstract(Float, Line),
-    {nil,Line} = erl_parse:abstract([], Line),
+    {integer,Line,1} = erl_parse_abstract(1, Line),
+    Float = 3.14, {float,Line,Float} = erl_parse_abstract(Float, Line),
+    {nil,Line} = erl_parse_abstract([], Line),
     {bin,Line,
      [{bin_element,Line,{integer,Line,1},default,default},
       {bin_element,Line,{integer,Line,2},default,default}]} =
-        erl_parse:abstract(<<1,2>>, Line),
+        erl_parse_abstract(<<1,2>>, Line),
     {cons,Line,{tuple,Line,[{atom,Line,a}]},{atom,Line,b}} =
-        erl_parse:abstract([{a} | b], Line),
-    {string,Line,"str"} = erl_parse:abstract("str", Line),
+        erl_parse_abstract([{a} | b], Line),
+    {string,Line,"str"} = erl_parse_abstract("str", Line),
     {cons,Line,
      {integer,Line,$a},
      {cons,Line,{integer,Line,55296},{string,Line,"c"}}} =
-        erl_parse:abstract("a"++[55296]++"c", Line),
+        erl_parse_abstract("a"++[55296]++"c", Line),
 
     Opts1 = [{line,17}],
-    {integer,Line,1} = erl_parse:abstract(1, Opts1),
-    Float = 3.14, {float,Line,Float} = erl_parse:abstract(Float, Opts1),
-    {nil,Line} = erl_parse:abstract([], Opts1),
+    {integer,Line,1} = erl_parse_abstract(1, Opts1),
+    Float = 3.14, {float,Line,Float} = erl_parse_abstract(Float, Opts1),
+    {nil,Line} = erl_parse_abstract([], Opts1),
     {bin,Line,
      [{bin_element,Line,{integer,Line,1},default,default},
       {bin_element,Line,{integer,Line,2},default,default}]} =
-        erl_parse:abstract(<<1,2>>, Opts1),
+        erl_parse_abstract(<<1,2>>, Opts1),
     {cons,Line,{tuple,Line,[{atom,Line,a}]},{atom,Line,b}} =
-        erl_parse:abstract([{a} | b], Opts1),
-    {string,Line,"str"} = erl_parse:abstract("str", Opts1),
+        erl_parse_abstract([{a} | b], Opts1),
+    {string,Line,"str"} = erl_parse_abstract("str", Opts1),
     {cons,Line,
      {integer,Line,$a},
      {cons,Line,{integer,Line,55296},{string,Line,"c"}}} =
-        erl_parse:abstract("a"++[55296]++"c", Opts1),
+        erl_parse_abstract("a"++[55296]++"c", Opts1),
 
     [begin
-         {integer,Line,1} = erl_parse:abstract(1, Opts2),
-         Float = 3.14, {float,Line,Float} = erl_parse:abstract(Float, Opts2),
-         {nil,Line} = erl_parse:abstract([], Opts2),
+         {integer,Line,1} = erl_parse_abstract(1, Opts2),
+         Float = 3.14, {float,Line,Float} = erl_parse_abstract(Float, Opts2),
+         {nil,Line} = erl_parse_abstract([], Opts2),
          {bin,Line,
           [{bin_element,Line,{integer,Line,1},default,default},
            {bin_element,Line,{integer,Line,2},default,default}]} =
-             erl_parse:abstract(<<1,2>>, Opts2),
+             erl_parse_abstract(<<1,2>>, Opts2),
          {cons,Line,{tuple,Line,[{atom,Line,a}]},{atom,Line,b}} =
-             erl_parse:abstract([{a} | b], Opts2),
-         {string,Line,"str"} = erl_parse:abstract("str", Opts2),
+             erl_parse_abstract([{a} | b], Opts2),
+         {string,Line,"str"} = erl_parse_abstract("str", Opts2),
          {string,Line,[97,1024,99]} =
-             erl_parse:abstract("a"++[1024]++"c", Opts2)
+             erl_parse_abstract("a"++[1024]++"c", Opts2)
      end || Opts2 <- [[{encoding,unicode},{line,Line}],
                       [{encoding,utf8},{line,Line}]]],
 
     {cons,0,
      {integer,0,97},
      {cons,0,{integer,0,1024},{string,0,"c"}}} =
-        erl_parse:abstract("a"++[1024]++"c", [{encoding,latin1}]),
+        erl_parse_abstract("a"++[1024]++"c", [{encoding,latin1}]),
     ok.
 
 otp_10990(doc) ->
@@ -1172,13 +1184,13 @@ otp_10992(suite) ->
     [];
 otp_10992(Config) when is_list(Config) ->
     {cons,0,{float,0,42.0},{nil,0}} =
-        erl_parse:abstract([42.0], [{encoding,unicode}]),
+        erl_parse_abstract([42.0], [{encoding,unicode}]),
     {cons,0,{float,0,42.0},{nil,0}} =
-        erl_parse:abstract([42.0], [{encoding,utf8}]),
+        erl_parse_abstract([42.0], [{encoding,utf8}]),
     {cons,0,{integer,0,65},{cons,0,{float,0,42.0},{nil,0}}} =
-        erl_parse:abstract([$A,42.0], [{encoding,unicode}]),
+        erl_parse_abstract([$A,42.0], [{encoding,unicode}]),
     {cons,0,{integer,0,65},{cons,0,{float,0,42.0},{nil,0}}} =
-        erl_parse:abstract([$A,42.0], [{encoding,utf8}]),
+        erl_parse_abstract([$A,42.0], [{encoding,utf8}]),
     ok.
 
 otp_11807(doc) ->
@@ -1187,29 +1199,72 @@ otp_11807(suite) ->
     [];
 otp_11807(Config) when is_list(Config) ->
     {cons,0,{integer,0,97},{cons,0,{integer,0,98},{nil,0}}} =
-        erl_parse:abstract("ab", [{encoding,none}]),
+        erl_parse_abstract("ab", [{encoding,none}]),
     {cons,0,{integer,0,-1},{nil,0}} =
-        erl_parse:abstract([-1], [{encoding,latin1}]),
+        erl_parse_abstract([-1], [{encoding,latin1}]),
     ASCII = fun(I) -> I >= 0 andalso I < 128 end,
-    {string,0,"xyz"} = erl_parse:abstract("xyz", [{encoding,ASCII}]),
+    {string,0,"xyz"} = erl_parse_abstract("xyz", [{encoding,ASCII}]),
     {cons,0,{integer,0,228},{nil,0}} =
-        erl_parse:abstract([228], [{encoding,ASCII}]),
+        erl_parse_abstract([228], [{encoding,ASCII}]),
     {cons,0,{integer,0,97},{atom,0,a}} =
-        erl_parse:abstract("a"++a, [{encoding,latin1}]),
+        erl_parse_abstract("a"++a, [{encoding,latin1}]),
     {'EXIT', {{badarg,bad},_}} = % minor backward incompatibility
          (catch erl_parse:abstract("string", [{encoding,bad}])),
    ok.
 
 test_string(String, ExpectedWithCol) ->
-    {ok, ExpectedWithCol, _EndWithCol} = erl_scan:string(String, {1, 1}, []),
+    {ok, ExpectedWithCol, _EndWithCol} = erl_scan_string(String, {1, 1}, []),
     Expected = [ begin
                      {L,_C} = element(2, T),
                      setelement(2, T, L)
                  end
                     || T <- ExpectedWithCol ],
-    {ok, Expected, _End} = erl_scan:string(String),
+    {ok, Expected, _End} = erl_scan_string(String),
     test(String).
 
+erl_scan_string(String) ->
+    erl_scan_string(String, 1, []).
+
+erl_scan_string(String, StartLocation) ->
+    erl_scan_string(String, StartLocation, []).
+
+erl_scan_string(String, StartLocation, Options) ->
+    case erl_scan:string(String, StartLocation, Options) of
+        {ok, Tokens, EndLocation} ->
+            {ok, unopaque_tokens(Tokens), EndLocation};
+        Else ->
+            Else
+    end.
+
+erl_scan_tokens(C, S, L) ->
+    erl_scan_tokens(C, S, L, []).
+
+erl_scan_tokens(C, S, L, O) ->
+    case erl_scan:tokens(C, S, L, O) of
+        {done, {ok, Ts, End}, R} ->
+            {done, {ok, unopaque_tokens(Ts), End}, R};
+        Else ->
+            Else
+    end.
+
+unopaque_tokens([]) ->
+    [];
+unopaque_tokens([Token|Tokens]) ->
+    Attrs = element(2, Token),
+    Term = erl_anno:to_term(Attrs),
+    T = setelement(2, Token, Term),
+    [T | unopaque_tokens(Tokens)].
+
+erl_parse_abstract(Term) ->
+    erl_parse_abstract(Term, []).
+
+erl_parse_abstract(Term, Options) ->
+    Abstr = erl_parse:abstract(Term, Options),
+    unopaque_abstract(Abstr).
+
+unopaque_abstract(Abstr) ->
+    erl_parse:anno_to_term(Abstr).
+
 %% test_string(String, Expected, StartLocation, Options) ->
 %%     {ok, Expected, _End} = erl_scan:string(String, StartLocation, Options),
 %%     test(String).
@@ -1359,7 +1414,7 @@ select_tokens(Tokens, Tags) ->
 
 simplify([Token|Tokens]) ->
     {line,Line} = erl_scan:token_info(Token, line),
-    [setelement(2, Token, Line) | simplify(Tokens)];
+    [setelement(2, Token, erl_anno:new(Line)) | simplify(Tokens)];
 simplify([]) ->
     [].
 
diff --git a/lib/stdlib/test/ets_SUITE.erl b/lib/stdlib/test/ets_SUITE.erl
index 8dc8b2c291..fff6b11a38 100644
--- a/lib/stdlib/test/ets_SUITE.erl
+++ b/lib/stdlib/test/ets_SUITE.erl
@@ -47,6 +47,7 @@
 -export([ordered/1, ordered_match/1, interface_equality/1,
 	 fixtable_next/1, fixtable_insert/1, rename/1, rename_unnamed/1, evil_rename/1,
 	 update_element/1, update_counter/1, evil_update_counter/1, partly_bound/1, match_heavy/1]).
+-export([update_counter_with_default/1]).
 -export([member/1]).
 -export([memory/1]).
 -export([select_fail/1]).
@@ -77,6 +78,7 @@
 -export([otp_10182/1]).
 -export([ets_all/1]).
 -export([memory_check_summary/1]).
+-export([take/1]).
 
 -export([init_per_testcase/2, end_per_testcase/2]).
 %% Convenience for manual testing
@@ -98,7 +100,7 @@
 	 misc1_do/1, safe_fixtable_do/1, info_do/1, dups_do/1, heavy_lookup_do/1,
 	 heavy_lookup_element_do/1, member_do/1, otp_5340_do/1, otp_7665_do/1, meta_wb_do/1,
 	 do_heavy_concurrent/1, tab2file2_do/2, exit_large_table_owner_do/2,
-         types_do/1, sleeper/0, memory_do/1,
+         types_do/1, sleeper/0, memory_do/1, update_counter_with_default_do/1,
 	 ms_tracee_dummy/1, ms_tracee_dummy/2, ms_tracee_dummy/3, ms_tracee_dummy/4
 	]).
 
@@ -135,7 +137,8 @@ all() ->
      {group, heavy}, ordered, ordered_match,
      interface_equality, fixtable_next, fixtable_insert,
      rename, rename_unnamed, evil_rename, update_element,
-     update_counter, evil_update_counter, partly_bound,
+     update_counter, evil_update_counter,
+     update_counter_with_default, partly_bound,
      match_heavy, {group, fold}, member, t_delete_object,
      t_init_table, t_whitebox, t_delete_all_objects,
      t_insert_list, t_test_ms, t_select_delete, t_ets_dets,
@@ -153,6 +156,7 @@ all() ->
      otp_9932,
      otp_9423,
      ets_all,
+     take,
      
      memory_check_summary]. % MUST BE LAST
 
@@ -1381,7 +1385,7 @@ random_test() ->
 	       {ok,[X]} ->
 		   X;
 	       _ ->
-		   {A,B,C} = erlang:now(),
+		   {A,B,C} = erlang:timestamp(),
 		   random:seed(A,B,C),
 		   get(random_seed)
 	   end,
@@ -1759,6 +1763,14 @@ update_counter_do(Opts) ->
     OrdSet = ets_new(ordered_set,[ordered_set | Opts]),
     update_counter_for(Set),
     update_counter_for(OrdSet),
+    ets:delete_all_objects(Set),
+    ets:delete_all_objects(OrdSet),
+    ets:safe_fixtable(Set, true),
+    ets:safe_fixtable(OrdSet, true),
+    update_counter_for(Set),
+    update_counter_for(OrdSet),
+    ets:safe_fixtable(Set, false),
+    ets:safe_fixtable(OrdSet, false),
     ets:delete(Set),
     ets:delete(OrdSet),
     update_counter_neg(Opts).
@@ -1778,10 +1790,14 @@ update_counter_for(T) ->
 		      ?line {NewObj, Ret} = uc_mimic(Obj,Arg3),
 		      ArgHash = erlang:phash2({T,a,Arg3}),
 		      %%io:format("update_counter(~p, ~p, ~p) expecting ~p\n",[T,a,Arg3,Ret]),
+                      [DefaultObj] = ets:lookup(T, a),
 		      ?line Ret = ets:update_counter(T,a,Arg3),
+                      Ret = ets:update_counter(T, b, Arg3, DefaultObj),   % Use other key
 		      ?line ArgHash = erlang:phash2({T,a,Arg3}),
 		      %%io:format("NewObj=~p~n ",[NewObj]),
 		      ?line [NewObj] = ets:lookup(T,a),
+                      true = ets:lookup(T, b) =:= [setelement(1, NewObj, b)],
+                      ets:delete(T, b),
 		      Myself(NewObj,Times-1,Arg3,Myself)
 	      end,		  
 
@@ -2006,6 +2022,44 @@ evil_counter_1(Iter, T) ->
     ets:update_counter(T, dracula, 1),
     evil_counter_1(Iter-1, T).
 
+update_counter_with_default(Config) when is_list(Config) ->
+	repeat_for_opts(update_counter_with_default_do).
+
+update_counter_with_default_do(Opts) ->
+    T1 = ets_new(a, [set | Opts]),
+    %% Insert default object.
+    3 = ets:update_counter(T1, foo, 2, {beaufort,1}),
+    %% Increment.
+    5 = ets:update_counter(T1, foo, 2, {cabecou,1}),
+    %% Increment with list.
+    [9] = ets:update_counter(T1, foo, [{2,4}], {camembert,1}),
+    %% Same with non-immediate key.
+    3 = ets:update_counter(T1, {foo,bar}, 2, {{chaource,chevrotin},1}),
+    5 = ets:update_counter(T1, {foo,bar}, 2, {{cantal,comté},1}),
+    [9] = ets:update_counter(T1, {foo,bar}, [{2,4}], {{emmental,de,savoie},1}),
+    %% Same with ordered set.
+    T2 = ets_new(b, [ordered_set | Opts]),
+    3 = ets:update_counter(T2, foo, 2, {maroilles,1}),
+    5 = ets:update_counter(T2, foo, 2, {mimolette,1}),
+    [9] = ets:update_counter(T2, foo, [{2,4}], {morbier,1}),
+    3 = ets:update_counter(T2, {foo,bar}, 2, {{laguiole},1}),
+    5 = ets:update_counter(T2, {foo,bar}, 2, {{saint,nectaire},1}),
+    [9] = ets:update_counter(T2, {foo,bar}, [{2,4}], {{rocamadour},1}),
+    %% Arithmetically-equal keys.
+    3 = ets:update_counter(T2, 1.0, 2, {1,1}),
+    5 = ets:update_counter(T2, 1, 2, {1,1}),
+    7 = ets:update_counter(T2, 1, 2, {1.0,1}),
+    %% Same with reversed type difference.
+    3 = ets:update_counter(T2, 2, 2, {2.0,1}),
+    5 = ets:update_counter(T2, 2.0, 2, {2.0,1}),
+    7 = ets:update_counter(T2, 2.0, 2, {2,1}),
+    %% bar is not an integer.
+    {'EXIT',{badarg,_}} = (catch ets:update_counter(T1, qux, 3, {saint,félicien})),
+    %% No third element in default value.
+    {'EXIT',{badarg,_}} = (catch ets:update_counter(T1, qux, [{3,1}], {roquefort,1})),
+
+    ok.
+
 fixtable_next(doc) ->
     ["Check that a first-next sequence always works on a fixed table"];
 fixtable_next(suite) ->
@@ -3007,13 +3061,13 @@ time_lookup(Config) when is_list(Config) ->
 				   "~p ets lookups/s",[Values]))}.
 
 time_lookup_do(Opts) ->
-    ?line Tab = ets_new(foo,Opts),
-    ?line fill_tab(Tab,foo),
-    ?line ets:insert(Tab,{{a,key},foo}),
-    ?line {Time,_} = ?t:timecall(test_server,do_times,
-				    [10000,ets,lookup,[Tab,{a,key}]]),
-    ?line true = ets:delete(Tab),
-    round(10000 / Time). % lookups/s
+    Tab = ets_new(foo,Opts),
+    fill_tab(Tab,foo),
+    ets:insert(Tab,{{a,key},foo}),
+    {Time,_} = ?t:timecall(test_server,do_times,
+          		    [100000,ets,lookup,[Tab,{a,key}]]),
+    true = ets:delete(Tab),
+    round(100000 / Time). % lookups/s
 
 badlookup(doc) ->
     ["Check proper return values from bad lookups in existing/non existing "
@@ -3487,12 +3541,9 @@ verify_rescheduling_exit(Config, ForEachData, Flags, Fix, NOTabs, NOProcs) ->
 	fun () ->
 		repeat(
 		  fun () ->
-			  {A, B, C} = now(),
-			  ?line Name = list_to_atom(
-					 TestCase
-					 ++ "-" ++ integer_to_list(A)
-					 ++ "-" ++ integer_to_list(B)
-					 ++ "-" ++ integer_to_list(C)),
+			  Uniq = erlang:unique_integer([positive]),
+			  Name = list_to_atom(TestCase ++ "-" ++
+						  integer_to_list(Uniq)),
 			  Tab = ets_new(Name, Flags),
                           ForEachData(fun(Data) -> ets:insert(Tab, Data) end),
 			  case Fix of
@@ -3770,41 +3821,99 @@ match_object(Config) when is_list(Config) ->
     repeat_for_opts(match_object_do).
 
 match_object_do(Opts) ->
-    ?line EtsMem = etsmem(),
-    ?line Tab = ets_new(foobar, Opts),
-    ?line fill_tab(Tab, foo),
-    ?line ets:insert(Tab, {{one, 4}, 4}),
-    ?line ets:insert(Tab,{{one,5},5}),
-    ?line ets:insert(Tab,{{two,4},4}),
-    ?line ets:insert(Tab,{{two,5},6}),
-    ?line case ets:match_object(Tab, {{one, '_'}, '$0'}) of
+    EtsMem = etsmem(),
+    Tab = ets_new(foobar, Opts),
+    fill_tab(Tab, foo),
+    ets:insert(Tab,{{one,4},4}),
+    ets:insert(Tab,{{one,5},5}),
+    ets:insert(Tab,{{two,4},4}),
+    ets:insert(Tab,{{two,5},6}),
+    ets:insert(Tab, {#{camembert=>cabécou},7}),
+    ets:insert(Tab, {#{"hi"=>"hello","wazzup"=>"awesome","1337"=>"42"},8}),
+    ets:insert(Tab, {#{"hi"=>"hello",#{"wazzup"=>3}=>"awesome","1337"=>"42"},9}),
+    ets:insert(Tab, {#{"hi"=>"hello","wazzup"=>#{"awesome"=>3},"1337"=>"42"},10}),
+    Is = lists:seq(1,100),
+    M1 = maps:from_list([{I,I}||I <- Is]),
+    M2 = maps:from_list([{I,"hi"}||I <- Is]),
+    ets:insert(Tab, {M1,11}),
+    ets:insert(Tab, {M2,12}),
+
+    case ets:match_object(Tab, {{one, '_'}, '$0'}) of
 	[{{one,5},5},{{one,4},4}] -> ok;
 	[{{one,4},4},{{one,5},5}] -> ok;
 	_ -> ?t:fail("ets:match_object() returned something funny.")
     end,
-    ?line case ets:match_object(Tab, {{two, '$1'}, '$0'}) of
+    case ets:match_object(Tab, {{two, '$1'}, '$0'}) of
 	[{{two,5},6},{{two,4},4}] -> ok;
 	[{{two,4},4},{{two,5},6}] -> ok;
 	_ -> ?t:fail("ets:match_object() returned something funny.")
     end,
-    ?line case ets:match_object(Tab, {{two, '$9'}, '$4'}) of
+    case ets:match_object(Tab, {{two, '$9'}, '$4'}) of
 	[{{two,5},6},{{two,4},4}] -> ok;
 	[{{two,4},4},{{two,5},6}] -> ok;
 	_ -> ?t:fail("ets:match_object() returned something funny.")
     end,
-    ?line case ets:match_object(Tab, {{two, '$9'}, '$22'}) of
+    case ets:match_object(Tab, {{two, '$9'}, '$22'}) of
 	[{{two,5},6},{{two,4},4}] -> ok;
 	[{{two,4},4},{{two,5},6}] -> ok;
 	_ -> ?t:fail("ets:match_object() returned something funny.")
     end,
-    % Check that unsucessful match returns an empty list.
-    ?line [] = ets:match_object(Tab, {{three,'$0'}, '$92'}),
+
+    % Check that maps are inspected for variables.
+    [{#{camembert:=cabécou},7}] = ets:match_object(Tab, {#{camembert=>'_'},7}),
+
+    [{#{"hi":="hello",#{"wazzup"=>3}:="awesome","1337":="42"},9}] =
+        ets:match_object(Tab, {#{#{"wazzup"=>3}=>"awesome","hi"=>"hello","1337"=>"42"},9}),
+    [{#{"hi":="hello",#{"wazzup"=>3}:="awesome","1337":="42"},9}] =
+        ets:match_object(Tab, {#{#{"wazzup"=>3}=>"awesome","hi"=>"hello","1337"=>'_'},'_'}),
+    [{#{"hi":="hello","wazzup":=#{"awesome":=3},"1337":="42"},10}] =
+        ets:match_object(Tab, {#{"wazzup"=>'_',"hi"=>'_',"1337"=>'_'},10}),
+
+    %% multiple patterns
+    Pat = {{#{#{"wazzup"=>3}=>"awesome","hi"=>"hello","1337"=>'_'},'$1'},[{is_integer,'$1'}],['$_']},
+    [{#{"hi":="hello",#{"wazzup"=>3}:="awesome","1337":="42"},9}] =
+        ets:select(Tab, [Pat,Pat,Pat,Pat]),
+    case ets:match_object(Tab, {#{"hi"=>"hello","wazzup"=>'_',"1337"=>"42"},'_'}) of
+        [{#{"1337" := "42","hi" := "hello","wazzup" := "awesome"},8},
+         {#{"1337" := "42","hi" := "hello","wazzup" := #{"awesome" := 3}},10}] -> ok;
+        [{#{"1337" := "42","hi" := "hello","wazzup" := #{"awesome" := 3}},10},
+         {#{"1337" := "42","hi" := "hello","wazzup" := "awesome"},8}] -> ok;
+        _ -> ?t:fail("ets:match_object() returned something funny.")
+    end,
+    case ets:match_object(Tab, {#{"hi"=>'_'},'_'}) of
+        [{#{"1337":="42", "hi":="hello"},_},
+         {#{"1337":="42", "hi":="hello"},_},
+         {#{"1337":="42", "hi":="hello"},_}] -> ok;
+        _ -> ?t:fail("ets:match_object() returned something funny.")
+    end,
+
+    %% match large maps
+    [{#{1:=1,2:=2,99:=99,100:=100},11}] = ets:match_object(Tab, {M1,11}),
+    [{#{1:="hi",2:="hi",99:="hi",100:="hi"},12}] = ets:match_object(Tab, {M2,12}),
+    case ets:match_object(Tab, {#{1=>'_',2=>'_'},'_'}) of
+        %% only match a part of the map
+        [{#{1:=1,5:=5,99:=99,100:=100},11},{#{1:="hi",6:="hi",99:="hi"},12}] -> ok;
+        [{#{1:="hi",2:="hi",59:="hi"},12},{#{1:=1,2:=2,39:=39,100:=100},11}] -> ok;
+        _ -> ?t:fail("ets:match_object() returned something funny.")
+    end,
+    case ets:match_object(Tab, {maps:from_list([{I,'_'}||I<-Is]),'_'}) of
+        %% only match a part of the map
+        [{#{1:=1,5:=5,99:=99,100:=100},11},{#{1:="hi",6:="hi",99:="hi"},12}] -> ok;
+        [{#{1:="hi",2:="hi",59:="hi"},12},{#{1:=1,2:=2,39:=39,100:=100},11}] -> ok;
+        _ -> ?t:fail("ets:match_object() returned something funny.")
+    end,
+    {'EXIT',{badarg,_}} = (catch ets:match_object(Tab, {#{'$1'=>'_'},7})),
+    Mve = maps:from_list([{list_to_atom([$$|integer_to_list(I)]),'_'}||I<-Is]),
+    {'EXIT',{badarg,_}} = (catch ets:match_object(Tab, {Mve,11})),
+
+    % Check that unsuccessful match returns an empty list.
+    [] = ets:match_object(Tab, {{three,'$0'}, '$92'}),
     % Check that '$0' equals '_'.
     Len = length(ets:match_object(Tab, '$0')),
     Len = length(ets:match_object(Tab, '_')),
-    ?line if Len > 4 -> ok end,
-    ?line true = ets:delete(Tab),
-    ?line verify_etsmem(EtsMem).
+    if Len > 4 -> ok end,
+    true = ets:delete(Tab),
+    verify_etsmem(EtsMem).
 
 match_object2(suite) -> [];
 match_object2(doc) -> ["Tests that db_match_object does not generate "
@@ -3969,12 +4078,22 @@ tab2file(doc) -> ["Check the ets:tab2file function on an empty "
 		  "ets table."];
 tab2file(suite) -> [];
 tab2file(Config) when is_list(Config) ->
+    ?line FName = filename:join([?config(priv_dir, Config),"tab2file_case"]),
+    tab2file_do(FName, []),
+    tab2file_do(FName, [{sync,true}]),
+    tab2file_do(FName, [{sync,false}]),
+    {'EXIT',{{badmatch,{error,_}},_}} = (catch tab2file_do(FName, [{sync,yes}])),
+    {'EXIT',{{badmatch,{error,_}},_}} = (catch tab2file_do(FName, [sync])),
+    ok.
+
+tab2file_do(FName, Opts) ->
     %% Write an empty ets table to a file, read back and check properties.
     ?line Tab = ets_new(ets_SUITE_foo_tab, [named_table, set, private,
 					    {keypos, 2}]),
-    ?line FName = filename:join([?config(priv_dir, Config),"tab2file_case"]),
-    ?line ok = ets:tab2file(Tab, FName),
-    ?line true = ets:delete(Tab),
+    catch file:delete(FName),
+    Res = ets:tab2file(Tab, FName, Opts),
+    true = ets:delete(Tab),
+    ok = Res,
     %
     ?line EtsMem = etsmem(),
     ?line {ok, Tab2} = ets:file2tab(FName),
@@ -3984,6 +4103,7 @@ tab2file(Config) when is_list(Config) ->
     ?line set = ets:info(Tab2, type),
     ?line true = ets:delete(Tab2),
     ?line verify_etsmem(EtsMem).
+
     
 tab2file2(doc) -> ["Check the ets:tab2file function on a ",
 		   "filled set/bag type ets table."];
@@ -4493,16 +4613,16 @@ build_table2(L1,L2,Num) ->
     T.
 
 time_match_object(Tab,Match, Res) ->
-    T1 = erlang:now(),
+    T1 = erlang:monotonic_time(micro_seconds),
     Res = ets:match_object(Tab,Match),
-    T2 = erlang:now(),
-    nowdiff(T1,T2).
+    T2 = erlang:monotonic_time(micro_seconds),
+    T2 - T1.
 
 time_match(Tab,Match) ->
-    T1 = erlang:now(),
+    T1 = erlang:monotonic_time(micro_seconds),
     ets:match(Tab,Match),
-    T2 = erlang:now(),
-    nowdiff(T1,T2).
+    T2 = erlang:monotonic_time(micro_seconds),
+    T2 - T1.
 
 seventyfive_percent_success(_,S,Fa,0) ->
     true = (S > ((S + Fa) * 0.75));
@@ -4527,11 +4647,6 @@ fifty_percent_success({M,F,A},S,Fa,N) ->
     end.
 
 
-nowtonumber({Mega, Secs, Milli}) ->
-    Milli + Secs * 1000000 + Mega * 1000000000000.
-nowdiff(T1,T2) ->
-    nowtonumber(T2) - nowtonumber(T1).
-
 create_random_string(0) ->
     [];
 
@@ -5000,36 +5115,40 @@ colliding_names(Name) ->
 
 grow_shrink(Config) when is_list(Config) ->
     ?line EtsMem = etsmem(),
-    ?line grow_shrink_0(lists:seq(3071, 5000), EtsMem),
-    ?line verify_etsmem(EtsMem).
 
-grow_shrink_0([N|Ns], EtsMem) ->
-    ?line grow_shrink_1(N, [set]),
-    ?line grow_shrink_1(N, [ordered_set]),
-    %% Verifying ets-memory here takes too long time, since
-    %% lock-free allocators were introduced...
-    %% ?line verify_etsmem(EtsMem),
-    grow_shrink_0(Ns, EtsMem);
-grow_shrink_0([], _) -> ok.
-
-grow_shrink_1(N, Flags) ->
-    ?line T = ets_new(a, Flags),
-    ?line grow_shrink_2(N, N, T),
-    ?line ets:delete(T).
+    Set = ets_new(a, [set]),
+    grow_shrink_0(0, 3071, 3000, 5000, Set),
+    ets:delete(Set),
 
-grow_shrink_2(0, Orig, T) ->
-    List = [{I,a} || I <- lists:seq(1, Orig)],
-    List = lists:sort(ets:tab2list(T)),
-    grow_shrink_3(Orig, T);
-grow_shrink_2(N, Orig, T) ->
+    %OrdSet = ets_new(a, [ordered_set]),
+    %grow_shrink_0(0, lists:seq(3071, 5000), OrdSet),
+    %ets:delete(OrdSet),
+
+    ?line verify_etsmem(EtsMem).
+
+grow_shrink_0(N, _, _, Max, _) when N >= Max ->
+    ok;
+grow_shrink_0(N0, GrowN, ShrinkN, Max, T) ->
+    N1 = grow_shrink_1(N0, GrowN, ShrinkN, T),
+    grow_shrink_0(N1, GrowN, ShrinkN, Max, T).
+
+grow_shrink_1(N0, GrowN, ShrinkN, T) ->
+    N1 = grow_shrink_2(N0+1, N0 + GrowN, T),
+    grow_shrink_3(N1, N1 - ShrinkN, T).
+
+grow_shrink_2(N, GrowTo, _) when N > GrowTo ->
+    %io:format("Grown to ~p\n", [GrowTo]),
+    GrowTo;
+grow_shrink_2(N, GrowTo, T) ->
     true = ets:insert(T, {N,a}),
-    grow_shrink_2(N-1, Orig, T).
+    grow_shrink_2(N+1, GrowTo, T).
 
-grow_shrink_3(0, T) ->
-    [] = ets:tab2list(T);
-grow_shrink_3(N, T) ->
+grow_shrink_3(N, ShrinkTo, _) when N =< ShrinkTo ->
+    %io:format("Shrunk to ~p\n", [ShrinkTo]),
+    ShrinkTo;
+grow_shrink_3(N, ShrinkTo, T) ->
     true = ets:delete(T, N),
-    grow_shrink_3(N-1, T).
+    grow_shrink_3(N-1, ShrinkTo, T).
     
 grow_pseudo_deleted(doc) -> ["Grow a table that still contains pseudo-deleted objects"];
 grow_pseudo_deleted(suite) -> [];
@@ -5055,17 +5174,29 @@ grow_pseudo_deleted_do(Type) ->
     ?line Left = ets:info(T,size),
     ?line Mult = get_kept_objects(T),
     filltabstr(T,Mult),
-    my_spawn_opt(fun()-> ?line true = ets:info(T,fixed),
-			 Self ! start,
-			 io:format("Starting to filltabstr... ~p\n",[now()]),
-			 filltabstr(T,Mult,Mult+10000),
-			 io:format("Done with filltabstr. ~p\n",[now()]),
-			 Self ! done 
-		 end, [link, {scheduler,2}]),
+    my_spawn_opt(
+      fun() ->
+	      true = ets:info(T,fixed),
+	      Self ! start,
+	      io:put_chars("Starting to filltabstr...\n"),
+	      do_tc(fun() ->
+			    filltabstr(T, Mult, Mult+10000)
+		    end,
+		    fun(Elapsed) ->
+			    io:format("Done with filltabstr in ~p ms\n",
+				      [Elapsed])
+		    end),
+	      Self ! done
+      end, [link, {scheduler,2}]),
     ?line start = receive_any(),
-    io:format("Unfixing table...~p nitems=~p\n",[now(),ets:info(T,size)]),
-    ?line true = ets:safe_fixtable(T,false),
-    io:format("Unfix table done. ~p nitems=~p\n",[now(),ets:info(T,size)]),
+    io:format("Unfixing table... nitems=~p\n", [ets:info(T, size)]),
+    do_tc(fun() ->
+		  true = ets:safe_fixtable(T, false)
+	  end,
+	  fun(Elapsed) ->
+		  io:format("Unfix table done in ~p ms. nitems=~p\n",
+			    [Elapsed,ets:info(T, size)])
+	  end),
     ?line false = ets:info(T,fixed),
     ?line 0 = get_kept_objects(T),
     ?line done = receive_any(),
@@ -5095,17 +5226,28 @@ shrink_pseudo_deleted_do(Type) ->
 				     [true]}]),    
     ?line Half = ets:info(T,size),
     ?line Half = get_kept_objects(T),
-    my_spawn_opt(fun()-> ?line true = ets:info(T,fixed),
-			 Self ! start,
-			 io:format("Starting to delete... ~p\n",[now()]),
-			 del_one_by_one_set(T,1,Half+1),
-			 io:format("Done with delete. ~p\n",[now()]),
-			 Self ! done 
-		 end, [link, {scheduler,2}]),
+    my_spawn_opt(
+      fun()-> true = ets:info(T,fixed),
+	      Self ! start,
+	      io:put_chars("Starting to delete... ~p\n"),
+	      do_tc(fun() ->
+			    del_one_by_one_set(T, 1, Half+1)
+		    end,
+		    fun(Elapsed) ->
+			    io:format("Done with delete in ~p ms.\n",
+				      [Elapsed])
+				end),
+	      Self ! done
+      end, [link, {scheduler,2}]),
     ?line start = receive_any(),
-    io:format("Unfixing table...~p nitems=~p\n",[now(),ets:info(T,size)]),
-    ?line true = ets:safe_fixtable(T,false),
-    io:format("Unfix table done. ~p nitems=~p\n",[now(),ets:info(T,size)]),
+    io:format("Unfixing table... nitems=~p\n", [ets:info(T, size)]),
+    do_tc(fun() ->
+		  true = ets:safe_fixtable(T, false)
+	  end,
+	  fun(Elapsed) ->
+		  io:format("Unfix table done in ~p ms. nitems=~p\n",
+			    [Elapsed,ets:info(T, size)])
+	  end),
     ?line false = ets:info(T,fixed),
     ?line 0 = get_kept_objects(T),
     ?line done = receive_any(),
@@ -5258,30 +5400,42 @@ smp_unfix_fix_do() ->
     ?line Deleted = get_kept_objects(T),
     
     {Child, Mref} = 
-      my_spawn_opt(fun()-> ?line true = ets:info(T,fixed),
-			   Parent ! start,
-			   io:format("Child waiting for table to be unfixed... now=~p mem=~p\n",
-				     [now(),ets:info(T,memory)]),
-			   repeat_while(fun()-> ets:info(T,fixed) end),
-			   io:format("Table unfixed. Child Fixating! now=~p mem=~p\n",
-				     [now(),ets:info(T,memory)]),    
-			   ?line true = ets:safe_fixtable(T,true),
-			   repeat_while(fun(Key) when Key =< NumOfObjs -> 
-						ets:delete(T,Key), {true,Key+1};
-					   (Key) -> {false,Key}
-					end,
-					Deleted),
-			   ?line 0 = ets:info(T,size),
-			   ?line true = get_kept_objects(T) >= Left,		      
-			   ?line done = receive_any()
-		   end, 
-		   [link, monitor, {scheduler,2}]),
+	my_spawn_opt(
+	  fun()->
+		  true = ets:info(T,fixed),
+		  Parent ! start,
+		  io:format("Child waiting for table to be unfixed... mem=~p\n",
+			    [ets:info(T, memory)]),
+		  do_tc(fun() ->
+				repeat_while(fun()-> ets:info(T, fixed) end)
+			end,
+			fun(Elapsed) ->
+				io:format("Table unfixed in ~p ms."
+					  " Child Fixating! mem=~p\n",
+					  [Elapsed,ets:info(T,memory)])
+			end),
+		  true = ets:safe_fixtable(T,true),
+		  repeat_while(fun(Key) when Key =< NumOfObjs ->
+				       ets:delete(T,Key), {true,Key+1};
+				  (Key) -> {false,Key}
+			       end,
+			       Deleted),
+		  0 = ets:info(T,size),
+		  true = get_kept_objects(T) >= Left,
+		  done = receive_any()
+	  end,
+	  [link, monitor, {scheduler,2}]),
     
     ?line start = receive_any(),        
     ?line true = ets:info(T,fixed),
-    io:format("Parent starting to unfix... ~p\n",[now()]),
-    ets:safe_fixtable(T,false),
-    io:format("Parent done with unfix. ~p\n",[now()]),
+    io:put_chars("Parent starting to unfix... ~p\n"),
+    do_tc(fun() ->
+		  ets:safe_fixtable(T, false)
+	  end,
+	  fun(Elapsed) ->
+		  io:format("Parent done with unfix in ~p ms.\n",
+			    [Elapsed])
+	  end),
     Child ! done,
     {'DOWN', Mref, process, Child, normal} = receive_any(),
     ?line false = ets:info(T,fixed),
@@ -5582,6 +5736,43 @@ ets_all_run() ->
     ets_all_run().
     
 
+take(Config) when is_list(Config) ->
+    %% Simple test for set tables.
+    T1 = ets_new(a, [set]),
+    [] = ets:take(T1, foo),
+    ets:insert(T1, {foo,bar}),
+    [] = ets:take(T1, bar),
+    [{foo,bar}] = ets:take(T1, foo),
+    [] = ets:tab2list(T1),
+    %% Non-immediate key.
+    ets:insert(T1, {{'not',<<"immediate">>},ok}),
+    [{{'not',<<"immediate">>},ok}] = ets:take(T1, {'not',<<"immediate">>}),
+    %% Same with ordered tables.
+    T2 = ets_new(b, [ordered_set]),
+    [] = ets:take(T2, foo),
+    ets:insert(T2, {foo,bar}),
+    [] = ets:take(T2, bar),
+    [{foo,bar}] = ets:take(T2, foo),
+    [] = ets:tab2list(T2),
+    ets:insert(T2, {{'not',<<"immediate">>},ok}),
+    [{{'not',<<"immediate">>},ok}] = ets:take(T2, {'not',<<"immediate">>}),
+    %% Arithmetically-equal keys.
+    ets:insert(T2, [{1.0,float},{2,integer}]),
+    [{1.0,float}] = ets:take(T2, 1),
+    [{2,integer}] = ets:take(T2, 2.0),
+    [] = ets:tab2list(T2),
+    %% Same with bag.
+    T3 = ets_new(c, [bag]),
+    ets:insert(T3, [{1,1},{1,2},{3,3}]),
+    [{1,1},{1,2}] = ets:take(T3, 1),
+    [{3,3}] = ets:take(T3, 3),
+    [] = ets:tab2list(T3),
+    ets:delete(T1),
+    ets:delete(T2),
+    ets:delete(T3),
+    ok.
+
+
 %
 % Utility functions:
 %
@@ -6246,3 +6437,10 @@ repeat_for_opts_atom2list(compressed) -> [compressed,void].
 ets_new(Name, Opts) ->
     %%ets:new(Name, [compressed | Opts]).
     ets:new(Name, Opts).
+
+do_tc(Do, Report) ->
+    T1 = erlang:monotonic_time(),
+    Do(),
+    T2 = erlang:monotonic_time(),
+    Elapsed = erlang:convert_time_unit(T2 - T1, native, milli_seconds),
+    Report(Elapsed).
diff --git a/lib/stdlib/test/filelib_SUITE.erl b/lib/stdlib/test/filelib_SUITE.erl
index bd313390b3..146d810189 100644
--- a/lib/stdlib/test/filelib_SUITE.erl
+++ b/lib/stdlib/test/filelib_SUITE.erl
@@ -77,7 +77,8 @@ wildcard_one(Config) when is_list(Config) ->
 			  L = filelib:wildcard(Wc),
 			  L = filelib:wildcard(Wc, erl_prim_loader),
 			  L = filelib:wildcard(Wc, "."),
-			  L = filelib:wildcard(Wc, Dir)
+			  L = filelib:wildcard(Wc, Dir),
+			  L = filelib:wildcard(Wc, Dir++"/.")
 		  end),
     ?line file:set_cwd(OldCwd),
     ?line ok = file:del_dir(Dir),
diff --git a/lib/stdlib/test/filename_SUITE.erl b/lib/stdlib/test/filename_SUITE.erl
index ecd9cff9f9..70e7ad9788 100644
--- a/lib/stdlib/test/filename_SUITE.erl
+++ b/lib/stdlib/test/filename_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1997-2012. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2014. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -287,38 +287,66 @@ extension(Config) when is_list(Config) ->
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
     
 join(Config) when is_list(Config) ->
+    %% Whenever joining two elements, test the equivalence between
+    %% join/1 and join/2 (OTP-12158) by using help function
+    %% filename_join/2.
     ?line "/" = filename:join(["/"]),
     ?line "/" = filename:join(["//"]),
-    ?line "usr/foo.erl" = filename:join("usr","foo.erl"),
-    ?line "/src/foo.erl" = filename:join(usr, "/src/foo.erl"),
-    ?line "/src/foo.erl" = filename:join(["/src/",'foo.erl']),
-    ?line "/src/foo.erl" = filename:join(usr, ["/sr", 'c/foo.erl']),
-    ?line "/src/foo.erl" = filename:join("usr", "/src/foo.erl"),
+    "usr/foo.erl" = filename_join("usr","foo.erl"),
+    "/src/foo.erl" = filename_join(usr, "/src/foo.erl"),
+    "/src/foo.erl" = filename_join("/src/",'foo.erl'),
+    "/src/foo.erl" = filename_join(usr, ["/sr", 'c/foo.erl']),
+    "/src/foo.erl" = filename_join("usr", "/src/foo.erl"),
 
     %% Make sure that redundant slashes work too.
     ?line "a/b/c/d/e/f/g" = filename:join(["a//b/c/////d//e/f/g"]),
-    ?line "a/b/c/d/e/f/g" = filename:join(["a//b/c/", "d//e/f/g"]),
-    ?line "a/b/c/d/e/f/g" = filename:join(["a//b/c", "d//e/f/g"]),
-    ?line "/d/e/f/g" = filename:join(["a//b/c", "/d//e/f/g"]),
-    ?line "/d/e/f/g" = filename:join(["a//b/c", "//d//e/f/g"]),
-
-    ?line "foo/bar" = filename:join([$f,$o,$o,$/,[]], "bar"),
+    "a/b/c/d/e/f/g" = filename_join("a//b/c/", "d//e/f/g"),
+    "a/b/c/d/e/f/g" = filename_join("a//b/c", "d//e/f/g"),
+    "/d/e/f/g" = filename_join("a//b/c", "/d//e/f/g"),
+    "/d/e/f/g" = filename:join("a//b/c", "//d//e/f/g"),
+
+    "foo/bar" = filename_join([$f,$o,$o,$/,[]], "bar"),
+
+    %% Single dots - should be removed if in the middle of the path,
+    %% but not at the end of the path.
+    "/." = filename:join(["/."]),
+    "/" = filename:join(["/./"]),
+    "/." = filename:join(["/./."]),
+    "./." = filename:join(["./."]),
+
+    "/a/b" = filename_join("/a/.","b"),
+    "/a/b/." = filename_join("/a/.","b/."),
+    "/a/." = filename_join("/a/.","."),
+    "/a/." = filename_join("/a","."),
+    "/a/." = filename_join("/a/.",""),
+    "./." = filename_join("./.","."),
+    "./." = filename_join("./","."),
+    "./." = filename_join("./.",""),
+    "." = filename_join(".",""),
+    "./." = filename_join(".","."),
+
+    %% Trailing slash shall be removed - except the root
+    "/" = filename:join(["/"]),
+    "/" = filename:join(["/./"]),
+    "/a" = filename:join(["/a/"]),
+    "/b" = filename_join("/a/","/b/"),
+    "/a/b" = filename_join("/a/","b/"),
 
     ?line case os:type() of
 	      {win32, _} ->
 		  ?line "d:/" = filename:join(["D:/"]),
 		  ?line "d:/" = filename:join(["D:\\"]),
-		  ?line "d:/abc" = filename:join(["D:/", "abc"]),
-		  ?line "d:abc" = filename:join(["D:", "abc"]),
+		  "d:/abc" = filename_join("D:/", "abc"),
+		  "d:abc" = filename_join("D:", "abc"),
 		  ?line "a/b/c/d/e/f/g" =
 		      filename:join(["a//b\\c//\\/\\d/\\e/f\\g"]),
 		  ?line "a:usr/foo.erl" =
 		      filename:join(["A:","usr","foo.erl"]),
 		  ?line "/usr/foo.erl" =
 		      filename:join(["A:","/usr","foo.erl"]),
-		  ?line "c:usr" = filename:join("A:","C:usr"),
-		  ?line "a:usr" = filename:join("A:","usr"),
-		  ?line "c:/usr" = filename:join("A:", "C:/usr"),
+		  "c:usr" = filename_join("A:","C:usr"),
+		  "a:usr" = filename_join("A:","usr"),
+		  "c:/usr" = filename_join("A:", "C:/usr"),
 		  ?line "c:/usr/foo.erl" =
 		      filename:join(["A:","C:/usr","foo.erl"]),
 		  ?line "c:usr/foo.erl" =
@@ -329,6 +357,11 @@ join(Config) when is_list(Config) ->
 		  ok
 	  end.
 
+%% Make sure join([A,B]) is equivalent to join(A,B) (OTP-12158)
+filename_join(A,B) ->
+    Res = filename:join(A,B),
+    Res = filename:join([A,B]).
+
 pathtype(Config) when is_list(Config) ->
     ?line relative = filename:pathtype(".."),
     ?line relative = filename:pathtype("foo"),
@@ -362,6 +395,8 @@ split(Config) when is_list(Config) ->
     ?line ["foo", "bar", "hello"]= filename:split("foo////bar//hello"),
     ?line ["foo", "bar", "hello"]= filename:split(["foo//",'//bar//h',"ello"]),
     ?line ["foo", "bar", "hello"]= filename:split(["foo//",'//bar//h'|ello]),
+    ["/"] = filename:split("/"),
+    [] = filename:split(""),
     case os:type() of
        {win32,_} ->
 	    ?line ["a:/","msdev","include"] =
@@ -633,6 +668,53 @@ join_bin(Config) when is_list(Config) ->
 
     ?line <<"foo/bar">> = filename:join([$f,$o,$o,$/,[]], <<"bar">>),
 
+    %% Single dots - should be removed if in the middle of the path,
+    %% but not at the end of the path.
+    %% Also test equivalence between join/1 and join/2 (OTP-12158)
+    <<"/.">> = filename:join([<<"/.">>]),
+    <<"/">> = filename:join([<<"/./">>]),
+    <<"/.">> = filename:join([<<"/./.">>]),
+    <<"./.">> = filename:join([<<"./.">>]),
+
+    <<"/a/b">> = filename:join([<<"/a/.">>,<<"b">>]),
+    <<"/a/b">> = filename:join(<<"/a/.">>,<<"b">>),
+
+    <<"/a/b/.">> = filename:join([<<"/a/.">>,<<"b/.">>]),
+    <<"/a/b/.">> = filename:join(<<"/a/.">>,<<"b/.">>),
+
+    <<"/a/.">> = filename:join([<<"/a/.">>,<<".">>]),
+    <<"/a/.">> = filename:join(<<"/a/.">>,<<".">>),
+
+    <<"/a/.">> = filename:join([<<"/a">>,<<".">>]),
+    <<"/a/.">> = filename:join(<<"/a">>,<<".">>),
+
+    <<"/a/.">> = filename:join([<<"/a/.">>,<<"">>]),
+    <<"/a/.">> = filename:join(<<"/a/.">>,<<"">>),
+
+    <<"./.">> = filename:join([<<"./.">>,<<".">>]),
+    <<"./.">> = filename:join(<<"./.">>,<<".">>),
+
+    <<"./.">> = filename:join([<<"./">>,<<".">>]),
+    <<"./.">> = filename:join(<<"./">>,<<".">>),
+
+    <<"./.">> = filename:join([<<"./.">>,<<"">>]),
+    <<"./.">> = filename:join(<<"./.">>,<<"">>),
+
+    <<".">> = filename:join([<<".">>,<<"">>]),
+    <<".">> = filename:join(<<".">>,<<"">>),
+
+    <<"./.">> = filename:join([<<".">>,<<".">>]),
+    <<"./.">> = filename:join(<<".">>,<<".">>),
+
+    %% Trailing slash shall be removed - except the root
+    <<"/">> = filename:join([<<"/">>]),
+    <<"/">> = filename:join([<<"/./">>]),
+    <<"/a">> = filename:join([<<"/a/">>]),
+    <<"/b">> = filename:join([<<"/a/">>,<<"/b/">>]),
+    <<"/b">> = filename:join(<<"/a/">>,<<"/b/">>),
+    <<"/a/b">> = filename:join([<<"/a/">>,<<"b/">>]),
+    <<"/a/b">> = filename:join(<<"/a/">>,<<"b/">>),
+
     ?line case os:type() of
 	      {win32, _} ->
 		  ?line <<"d:/">> = filename:join([<<"D:/">>]),
@@ -687,6 +769,8 @@ split_bin(Config) when is_list(Config) ->
     [<<"/">>,<<"usr">>,<<"local">>,<<"bin">>] = filename:split(<<"/usr/local/bin">>),
     [<<"foo">>,<<"bar">>]= filename:split(<<"foo/bar">>),
     [<<"foo">>, <<"bar">>, <<"hello">>]= filename:split(<<"foo////bar//hello">>),
+    [<<"/">>] = filename:split(<<"/">>),
+    [] = filename:split(<<"">>),
     case os:type() of
        {win32,_} ->
 	    [<<"a:/">>,<<"msdev">>,<<"include">>] =
diff --git a/lib/stdlib/test/gen_event_SUITE.erl b/lib/stdlib/test/gen_event_SUITE.erl
index 60a1ba8c60..6c28eb00c3 100644
--- a/lib/stdlib/test/gen_event_SUITE.erl
+++ b/lib/stdlib/test/gen_event_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2014. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -106,7 +106,7 @@ start(Config) when is_list(Config) ->
     ?line {error, {already_started, _}} =
 	gen_event:start({global, my_dummy_name}),
 
-    exit(Pid6, shutdown),
+    ok = gen_event:stop({global, my_dummy_name}, shutdown, 10000),
     receive
 	{'EXIT', Pid6, shutdown} -> ok
     after 10000 ->
@@ -131,90 +131,105 @@ start(Config) when is_list(Config) ->
     ok.
 
 
-hibernate(suite) -> [];
 hibernate(Config) when is_list(Config) ->
-    ?line {ok,Pid} = gen_event:start({local, my_dummy_handler}),
-    ?line ok = gen_event:add_handler(my_dummy_handler, dummy_h, [self()]),
-    ?line [dummy_h] = gen_event:which_handlers(my_dummy_handler),
-    ?line true = gen_event:call(my_dummy_handler, dummy_h, hibernate),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function),
-    ?line Pid ! wake,
-    ?line receive after 1000 -> ok end,
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= 
-		  erlang:process_info(Pid,current_function)),    
-    ?line later = gen_event:call(my_dummy_handler, dummy_h, hibernate_later),
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= 
-		  erlang:process_info(Pid,current_function)),    
-    ?line receive after 2000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function),
-    ?line Pid ! wake,
-    ?line receive after 1000 -> ok end,
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= 
-		  erlang:process_info(Pid,current_function)),    
-    ?line gen_event:notify(my_dummy_handler,hibernate),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function),
-    ?line gen_event:notify(my_dummy_handler,wakeup),
-    ?line receive after 1000 -> ok end,
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= 
-		  erlang:process_info(Pid,current_function)),    
-    ?line gen_event:notify(my_dummy_handler,hibernate),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function),
-    ?line gen_event:sync_notify(my_dummy_handler,wakeup),
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= 
-		  erlang:process_info(Pid,current_function)),    
-    ?line ok = gen_event:sync_notify(my_dummy_handler,hibernate),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function),
-    ?line Pid ! wake,
-    ?line receive after 1000 -> ok end,
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= 
-		  erlang:process_info(Pid,current_function)),
-    ?line ok = gen_event:add_handler(my_dummy_handler, dummy1_h, [self()]),
-    ?line [_,_] = gen_event:which_handlers(my_dummy_handler),
-    ?line gen_event:notify(my_dummy_handler,hibernate),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function),
-    ?line gen_event:notify(my_dummy_handler,wakeup),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function),
-    ?line Pid ! wake,
-    ?line receive after 1000 -> ok end,
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= 
-		  erlang:process_info(Pid,current_function)),
-    ?line Pid ! gnurf,
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function),
-    ?line Pid ! sleep,
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function),
-    ?line Pid ! wake,
-    ?line receive after 1000 -> ok end,
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= 
-		  erlang:process_info(Pid,current_function)),
-    ?line ok = gen_event:stop(my_dummy_handler),
-    ?line {ok,Pid2} = gen_event:start({local, my_dummy_handler}),
-    ?line ok = gen_event:add_handler(my_dummy_handler, dummy_h, [self(),hibernate]),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = erlang:process_info(Pid2,current_function),
-    ?line sys:suspend(my_dummy_handler),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = erlang:process_info(Pid2,current_function),
-    ?line sys:resume(my_dummy_handler),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = erlang:process_info(Pid2,current_function),
-    ?line Pid2 ! wake,
-    ?line receive after 1000 -> ok end,
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= 
-		  erlang:process_info(Pid2,current_function)),
+    {ok,Pid} = gen_event:start({local, my_dummy_handler}),
+    ok = gen_event:add_handler(my_dummy_handler, dummy_h, [self()]),
+    [dummy_h] = gen_event:which_handlers(my_dummy_handler),
+    true = gen_event:call(my_dummy_handler, dummy_h, hibernate),
+    is_in_erlang_hibernate(Pid),
+
+    Pid ! wake,
+    is_not_in_erlang_hibernate(Pid),
+    later = gen_event:call(my_dummy_handler, dummy_h, hibernate_later),
+    true = ({current_function,{erlang,hibernate,3}} =/=
+		erlang:process_info(Pid, current_function)),
+    is_in_erlang_hibernate(Pid),
+
+    Pid ! wake,
+    is_not_in_erlang_hibernate(Pid),
+    gen_event:notify(my_dummy_handler, hibernate),
+    is_in_erlang_hibernate(Pid),
+    gen_event:notify(my_dummy_handler, wakeup),
+    is_not_in_erlang_hibernate(Pid),
+    gen_event:notify(my_dummy_handler, hibernate),
+    is_in_erlang_hibernate(Pid),
+    gen_event:sync_notify(my_dummy_handler, wakeup),
+    true = ({current_function,{erlang,hibernate,3}} =/=
+		erlang:process_info(Pid, current_function)),
+    ok = gen_event:sync_notify(my_dummy_handler, hibernate),
+    is_in_erlang_hibernate(Pid),
+
+    Pid ! wake,
+    is_not_in_erlang_hibernate(Pid),
+    ok = gen_event:add_handler(my_dummy_handler, dummy1_h, [self()]),
+    [_,_] = gen_event:which_handlers(my_dummy_handler),
+    gen_event:notify(my_dummy_handler, hibernate),
+    is_in_erlang_hibernate(Pid),
+    gen_event:notify(my_dummy_handler, wakeup),
+    is_in_erlang_hibernate(Pid),
+
+    Pid ! wake,
+    is_not_in_erlang_hibernate(Pid),
+
+    Pid ! gnurf,
+    is_in_erlang_hibernate(Pid),
+
+    Pid ! sleep,
+    is_in_erlang_hibernate(Pid),
+
+    Pid ! wake,
+    is_not_in_erlang_hibernate(Pid),
+    ok = gen_event:stop(my_dummy_handler),
+
+    {ok,Pid2} = gen_event:start({local, my_dummy_handler}),
+    ok = gen_event:add_handler(my_dummy_handler, dummy_h,
+				     [self(),hibernate]),
+    is_in_erlang_hibernate(Pid2),
+    sys:suspend(my_dummy_handler),
+    is_in_erlang_hibernate(Pid2),
+    sys:resume(my_dummy_handler),
+    is_in_erlang_hibernate(Pid2),
+
+    Pid2 ! wake,
+    is_not_in_erlang_hibernate(Pid2),
    
-
-    ?line ok = gen_event:stop(my_dummy_handler),
+    ok = gen_event:stop(my_dummy_handler),
 
     ok.
 
+is_in_erlang_hibernate(Pid) ->
+    receive after 1 -> ok end,
+    is_in_erlang_hibernate_1(200, Pid).
+
+is_in_erlang_hibernate_1(0, Pid) ->
+    io:format("~p\n", [erlang:process_info(Pid, current_function)]),
+    ?t:fail(not_in_erlang_hibernate_3);
+is_in_erlang_hibernate_1(N, Pid) ->
+    {current_function,MFA} = erlang:process_info(Pid, current_function),
+    case MFA of
+	{erlang,hibernate,3} ->
+	    ok;
+	_ ->
+	    receive after 10 -> ok end,
+	    is_in_erlang_hibernate_1(N-1, Pid)
+    end.
+
+is_not_in_erlang_hibernate(Pid) ->
+    receive after 1 -> ok end,
+    is_not_in_erlang_hibernate_1(200, Pid).
+
+is_not_in_erlang_hibernate_1(0, Pid) ->
+    io:format("~p\n", [erlang:process_info(Pid, current_function)]),
+    ?t:fail(not_in_erlang_hibernate_3);
+is_not_in_erlang_hibernate_1(N, Pid) ->
+    {current_function,MFA} = erlang:process_info(Pid, current_function),
+    case MFA of
+	{erlang,hibernate,3} ->
+	    receive after 10 -> ok end,
+	    is_not_in_erlang_hibernate_1(N-1, Pid);
+	_ ->
+	    ok
+    end.
 
 
 add_handler(doc) -> [];
diff --git a/lib/stdlib/test/gen_fsm_SUITE.erl b/lib/stdlib/test/gen_fsm_SUITE.erl
index 39f0442824..f003630535 100644
--- a/lib/stdlib/test/gen_fsm_SUITE.erl
+++ b/lib/stdlib/test/gen_fsm_SUITE.erl
@@ -27,6 +27,9 @@
 -export([start1/1, start2/1, start3/1, start4/1, start5/1, start6/1,
 	 start7/1, start8/1, start9/1, start10/1, start11/1, start12/1]).
 
+-export([stop1/1, stop2/1, stop3/1, stop4/1, stop5/1, stop6/1, stop7/1,
+	 stop8/1, stop9/1, stop10/1]).
+
 -export([ abnormal1/1, abnormal2/1]).
 
 -export([shutdown/1]).
@@ -66,6 +69,8 @@ groups() ->
     [{start, [],
       [start1, start2, start3, start4, start5, start6, start7,
        start8, start9, start10, start11, start12]},
+     {stop, [],
+      [stop1, stop2, stop3, stop4, stop5, stop6, stop7, stop8, stop9, stop10]},
      {abnormal, [], [abnormal1, abnormal2]},
      {sys, [],
       [sys1, call_format_status, error_format_status, terminate_crash_format,
@@ -281,6 +286,105 @@ start12(Config) when is_list(Config) ->
     ok.
 
 
+%% Anonymous, reason 'normal'
+stop1(_Config) ->
+    {ok, Pid} = gen_fsm:start(?MODULE, [], []),
+    ok = gen_fsm:stop(Pid),
+    false = erlang:is_process_alive(Pid),
+    {'EXIT',noproc} = (catch gen_fsm:stop(Pid)),
+    ok.
+
+%% Anonymous, other reason
+stop2(_Config) ->
+    {ok,Pid} = gen_fsm:start(?MODULE, [], []),
+    ok = gen_fsm:stop(Pid, other_reason, infinity),
+    false = erlang:is_process_alive(Pid),
+    ok.
+
+%% Anonymous, invalid timeout
+stop3(_Config) ->
+    {ok,Pid} = gen_fsm:start(?MODULE, [], []),
+    {'EXIT',_} = (catch gen_fsm:stop(Pid, other_reason, invalid_timeout)),
+    true = erlang:is_process_alive(Pid),
+    ok = gen_fsm:stop(Pid),
+    false = erlang:is_process_alive(Pid),
+    ok.
+
+%% Registered name
+stop4(_Config) ->
+    {ok,Pid} = gen_fsm:start({local,to_stop},?MODULE, [], []),
+    ok = gen_fsm:stop(to_stop),
+    false = erlang:is_process_alive(Pid),
+    {'EXIT',noproc} = (catch gen_fsm:stop(to_stop)),
+    ok.
+
+%% Registered name and local node
+stop5(_Config) ->
+    {ok,Pid} = gen_fsm:start({local,to_stop},?MODULE, [], []),
+    ok = gen_fsm:stop({to_stop,node()}),
+    false = erlang:is_process_alive(Pid),
+    {'EXIT',noproc} = (catch gen_fsm:stop({to_stop,node()})),
+    ok.
+
+%% Globally registered name
+stop6(_Config) ->
+    {ok, Pid} = gen_fsm:start({global, to_stop}, ?MODULE, [], []),
+    ok = gen_fsm:stop({global,to_stop}),
+    false = erlang:is_process_alive(Pid),
+    {'EXIT',noproc} = (catch gen_fsm:stop({global,to_stop})),
+    ok.
+
+%% 'via' registered name
+stop7(_Config) ->
+    dummy_via:reset(),
+    {ok, Pid} = gen_fsm:start({via, dummy_via, to_stop},
+				  ?MODULE, [], []),
+    ok = gen_fsm:stop({via, dummy_via, to_stop}),
+    false = erlang:is_process_alive(Pid),
+    {'EXIT',noproc} = (catch gen_fsm:stop({via, dummy_via, to_stop})),
+    ok.
+
+%% Anonymous on remote node
+stop8(_Config) ->
+    {ok,Node} = test_server:start_node(gen_fsm_SUITE_stop8,slave,[]),
+    Dir = filename:dirname(code:which(?MODULE)),
+    rpc:call(Node,code,add_path,[Dir]),
+    {ok, Pid} = rpc:call(Node,gen_fsm,start,[?MODULE,[],[]]),
+    ok = gen_fsm:stop(Pid),
+    false = rpc:call(Node,erlang,is_process_alive,[Pid]),
+    {'EXIT',noproc} = (catch gen_fsm:stop(Pid)),
+    true = test_server:stop_node(Node),
+    {'EXIT',{{nodedown,Node},_}} = (catch gen_fsm:stop(Pid)),
+    ok.
+
+%% Registered name on remote node
+stop9(_Config) ->
+    {ok,Node} = test_server:start_node(gen_fsm_SUITE_stop9,slave,[]),
+    Dir = filename:dirname(code:which(?MODULE)),
+    rpc:call(Node,code,add_path,[Dir]),
+    {ok, Pid} = rpc:call(Node,gen_fsm,start,[{local,to_stop},?MODULE,[],[]]),
+    ok = gen_fsm:stop({to_stop,Node}),
+    undefined = rpc:call(Node,erlang,whereis,[to_stop]),
+    false = rpc:call(Node,erlang,is_process_alive,[Pid]),
+    {'EXIT',noproc} = (catch gen_fsm:stop({to_stop,Node})),
+    true = test_server:stop_node(Node),
+    {'EXIT',{{nodedown,Node},_}} = (catch gen_fsm:stop({to_stop,Node})),
+    ok.
+
+%% Globally registered name on remote node
+stop10(_Config) ->
+    {ok,Node} = test_server:start_node(gen_fsm_SUITE_stop10,slave,[]),
+    Dir = filename:dirname(code:which(?MODULE)),
+    rpc:call(Node,code,add_path,[Dir]),
+    {ok, Pid} = rpc:call(Node,gen_fsm,start,[{global,to_stop},?MODULE,[],[]]),
+    global:sync(),
+    ok = gen_fsm:stop({global,to_stop}),
+    false = rpc:call(Node,erlang,is_process_alive,[Pid]),
+    {'EXIT',noproc} = (catch gen_fsm:stop({global,to_stop})),
+    true = test_server:stop_node(Node),
+    {'EXIT',noproc} = (catch gen_fsm:stop({global,to_stop})),
+    ok.
+
 %% Check that time outs in calls work
 abnormal1(suite) -> [];
 abnormal1(Config) when is_list(Config) ->
@@ -492,129 +596,123 @@ replace_state(Config) when is_list(Config) ->
     ok.
 
 %% Hibernation
-hibernate(suite) -> [];
 hibernate(Config) when is_list(Config) ->
     OldFl = process_flag(trap_exit, true),
 
-    ?line {ok, Pid0} = gen_fsm:start_link(?MODULE, hiber_now, []),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = 
-	erlang:process_info(Pid0,current_function),
-    ?line stop_it(Pid0),
+    {ok, Pid0} = gen_fsm:start_link(?MODULE, hiber_now, []),
+    is_in_erlang_hibernate(Pid0),
+    stop_it(Pid0),
     test_server:messages_get(),
 
-
-    ?line {ok, Pid} = gen_fsm:start_link(?MODULE, hiber, []),
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
-    ?line hibernating = gen_fsm:sync_send_event(Pid,hibernate_sync),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = 
-	erlang:process_info(Pid,current_function),
-    ?line good_morning  = gen_fsm:sync_send_event(Pid,wakeup_sync),
-    ?line receive after 1000 -> ok end,
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
-    ?line hibernating = gen_fsm:sync_send_event(Pid,hibernate_sync),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = 
-	erlang:process_info(Pid,current_function),
-    ?line five_more  = gen_fsm:sync_send_event(Pid,snooze_sync),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = 
-	erlang:process_info(Pid,current_function),
-    ?line good_morning  = gen_fsm:sync_send_event(Pid,wakeup_sync),
-    ?line receive after 1000 -> ok end,
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
-    ?line ok = gen_fsm:send_event(Pid,hibernate_async),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = 
-	erlang:process_info(Pid,current_function),
-    ?line ok  = gen_fsm:send_event(Pid,wakeup_async),
-    ?line receive after 1000 -> ok end,
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
-    ?line ok = gen_fsm:send_event(Pid,hibernate_async),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = 
-	erlang:process_info(Pid,current_function),
-    ?line ok  = gen_fsm:send_event(Pid,snooze_async),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = 
-	erlang:process_info(Pid,current_function),
-    ?line ok = gen_fsm:send_event(Pid,wakeup_async),
-    ?line receive after 1000 -> ok end,
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
-    ?line Pid ! hibernate_later,
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
-    ?line receive after 2000 -> ok end,
-    ?line ({current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function)),
-    ?line 'alive!' = gen_fsm:sync_send_event(Pid,'alive?'),
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
-    ?line Pid ! hibernate_now,
-    ?line receive after 1000 -> ok end,
-    ?line ({current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function)),
-    ?line 'alive!' = gen_fsm:sync_send_event(Pid,'alive?'),
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
-    
-
-    ?line hibernating = gen_fsm:sync_send_all_state_event(Pid,hibernate_sync),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = 
-	erlang:process_info(Pid,current_function),
-    ?line good_morning  = gen_fsm:sync_send_all_state_event(Pid,wakeup_sync),
-    ?line receive after 1000 -> ok end,
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
-    ?line hibernating = gen_fsm:sync_send_all_state_event(Pid,hibernate_sync),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = 
-	erlang:process_info(Pid,current_function),
-    ?line five_more  = gen_fsm:sync_send_all_state_event(Pid,snooze_sync),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = 
-	erlang:process_info(Pid,current_function),
-    ?line good_morning  = gen_fsm:sync_send_all_state_event(Pid,wakeup_sync),
-    ?line receive after 1000 -> ok end,
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
-    ?line ok = gen_fsm:send_all_state_event(Pid,hibernate_async),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = 
-	erlang:process_info(Pid,current_function),
-    ?line ok  = gen_fsm:send_all_state_event(Pid,wakeup_async),
-    ?line receive after 1000 -> ok end,
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
-    ?line ok = gen_fsm:send_all_state_event(Pid,hibernate_async),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = 
-	erlang:process_info(Pid,current_function),
-    ?line ok  = gen_fsm:send_all_state_event(Pid,snooze_async),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = 
-	erlang:process_info(Pid,current_function),
-    ?line ok = gen_fsm:send_all_state_event(Pid,wakeup_async),
-    ?line receive after 1000 -> ok end,
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
-
-    ?line hibernating = gen_fsm:sync_send_all_state_event(Pid,hibernate_sync),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = 
-	erlang:process_info(Pid,current_function),
-    ?line sys:suspend(Pid),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function),
-    ?line sys:resume(Pid),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function),
-
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = 
-	erlang:process_info(Pid,current_function),
-    ?line good_morning  = gen_fsm:sync_send_all_state_event(Pid,wakeup_sync),
-    ?line receive after 1000 -> ok end,
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
-    ?line stop_it(Pid),
+    {ok, Pid} = gen_fsm:start_link(?MODULE, hiber, []),
+    true = ({current_function,{erlang,hibernate,3}} =/=
+		erlang:process_info(Pid,current_function)),
+    hibernating = gen_fsm:sync_send_event(Pid, hibernate_sync),
+    is_in_erlang_hibernate(Pid),
+    good_morning = gen_fsm:sync_send_event(Pid, wakeup_sync),
+    is_not_in_erlang_hibernate(Pid),
+    hibernating = gen_fsm:sync_send_event(Pid, hibernate_sync),
+    is_in_erlang_hibernate(Pid),
+    five_more = gen_fsm:sync_send_event(Pid, snooze_sync),
+    is_in_erlang_hibernate(Pid),
+    good_morning = gen_fsm:sync_send_event(Pid, wakeup_sync),
+    is_not_in_erlang_hibernate(Pid),
+    ok = gen_fsm:send_event(Pid, hibernate_async),
+    is_in_erlang_hibernate(Pid),
+    ok = gen_fsm:send_event(Pid, wakeup_async),
+    is_not_in_erlang_hibernate(Pid),
+    ok = gen_fsm:send_event(Pid, hibernate_async),
+    is_in_erlang_hibernate(Pid),
+    ok = gen_fsm:send_event(Pid, snooze_async),
+    is_in_erlang_hibernate(Pid),
+    ok = gen_fsm:send_event(Pid, wakeup_async),
+    is_not_in_erlang_hibernate(Pid),
+
+    Pid ! hibernate_later,
+    true = ({current_function,{erlang,hibernate,3}} =/=
+		erlang:process_info(Pid, current_function)),
+    is_in_erlang_hibernate(Pid),
+
+    'alive!' = gen_fsm:sync_send_event(Pid,'alive?'),
+    true = ({current_function,{erlang,hibernate,3}} =/=
+		erlang:process_info(Pid, current_function)),
+    Pid ! hibernate_now,
+    is_in_erlang_hibernate(Pid),
+
+    'alive!' = gen_fsm:sync_send_event(Pid,'alive?'),
+    true = ({current_function,{erlang,hibernate,3}} =/=
+		erlang:process_info(Pid, current_function)),
+
+    hibernating = gen_fsm:sync_send_all_state_event(Pid, hibernate_sync),
+    is_in_erlang_hibernate(Pid),
+    good_morning = gen_fsm:sync_send_all_state_event(Pid, wakeup_sync),
+    is_not_in_erlang_hibernate(Pid),
+    hibernating = gen_fsm:sync_send_all_state_event(Pid, hibernate_sync),
+    is_in_erlang_hibernate(Pid),
+    five_more = gen_fsm:sync_send_all_state_event(Pid, snooze_sync),
+    is_in_erlang_hibernate(Pid),
+    good_morning = gen_fsm:sync_send_all_state_event(Pid, wakeup_sync),
+    is_not_in_erlang_hibernate(Pid),
+    ok = gen_fsm:send_all_state_event(Pid, hibernate_async),
+    is_in_erlang_hibernate(Pid),
+    ok  = gen_fsm:send_all_state_event(Pid, wakeup_async),
+    is_not_in_erlang_hibernate(Pid),
+    ok = gen_fsm:send_all_state_event(Pid, hibernate_async),
+    is_in_erlang_hibernate(Pid),
+    ok = gen_fsm:send_all_state_event(Pid, snooze_async),
+    is_in_erlang_hibernate(Pid),
+    ok = gen_fsm:send_all_state_event(Pid, wakeup_async),
+    is_not_in_erlang_hibernate(Pid),
+
+    hibernating = gen_fsm:sync_send_all_state_event(Pid, hibernate_sync),
+    is_in_erlang_hibernate(Pid),
+    sys:suspend(Pid),
+    is_in_erlang_hibernate(Pid),
+    sys:resume(Pid),
+    is_in_erlang_hibernate(Pid),
+    receive after 1000 -> ok end,
+    is_in_erlang_hibernate(Pid),
+
+    good_morning  = gen_fsm:sync_send_all_state_event(Pid, wakeup_sync),
+    is_not_in_erlang_hibernate(Pid),
+    stop_it(Pid),
     test_server:messages_get(),
     process_flag(trap_exit, OldFl),
     ok.
 
+is_in_erlang_hibernate(Pid) ->
+    receive after 1 -> ok end,
+    is_in_erlang_hibernate_1(200, Pid).
+
+is_in_erlang_hibernate_1(0, Pid) ->
+    io:format("~p\n", [erlang:process_info(Pid, current_function)]),
+    ?t:fail(not_in_erlang_hibernate_3);
+is_in_erlang_hibernate_1(N, Pid) ->
+    {current_function,MFA} = erlang:process_info(Pid, current_function),
+    case MFA of
+	{erlang,hibernate,3} ->
+	    ok;
+	_ ->
+	    receive after 10 -> ok end,
+	    is_in_erlang_hibernate_1(N-1, Pid)
+    end.
 
+is_not_in_erlang_hibernate(Pid) ->
+    receive after 1 -> ok end,
+    is_not_in_erlang_hibernate_1(200, Pid).
+
+is_not_in_erlang_hibernate_1(0, Pid) ->
+    io:format("~p\n", [erlang:process_info(Pid, current_function)]),
+    ?t:fail(not_in_erlang_hibernate_3);
+is_not_in_erlang_hibernate_1(N, Pid) ->
+    {current_function,MFA} = erlang:process_info(Pid, current_function),
+    case MFA of
+	{erlang,hibernate,3} ->
+	    receive after 10 -> ok end,
+	    is_not_in_erlang_hibernate_1(N-1, Pid);
+	_ ->
+	    ok
+    end.
 
 %%sys1(suite) -> [];
 %%sys1(_) ->
diff --git a/lib/stdlib/test/gen_server_SUITE.erl b/lib/stdlib/test/gen_server_SUITE.erl
index 0f03fda30a..66341f495f 100644
--- a/lib/stdlib/test/gen_server_SUITE.erl
+++ b/lib/stdlib/test/gen_server_SUITE.erl
@@ -36,6 +36,9 @@
 	 get_state/1, replace_state/1, call_with_huge_message_queue/1
 	]).
 
+-export([stop1/1, stop2/1, stop3/1, stop4/1, stop5/1, stop6/1, stop7/1,
+	 stop8/1, stop9/1, stop10/1]).
+
 % spawn export
 -export([spec_init_local/2, spec_init_global/2, spec_init_via/2,
 	 spec_init_default_timeout/2, spec_init_global_default_timeout/2,
@@ -51,7 +54,7 @@
 suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() -> 
-    [start, crash, call, cast, cast_fast, info, abcast,
+    [start, {group,stop}, crash, call, cast, cast_fast, info, abcast,
      multicall, multicall_down, call_remote1, call_remote2,
      call_remote3, call_remote_n1, call_remote_n2,
      call_remote_n3, spec_init,
@@ -63,7 +66,8 @@ all() ->
      call_with_huge_message_queue].
 
 groups() -> 
-    [].
+    [{stop, [],
+      [stop1, stop2, stop3, stop4, stop5, stop6, stop7, stop8, stop9, stop10]}].
 
 init_per_suite(Config) ->
     Config.
@@ -237,6 +241,105 @@ start(Config) when is_list(Config) ->
     process_flag(trap_exit, OldFl),
     ok.
 
+%% Anonymous, reason 'normal'
+stop1(_Config) ->
+    {ok, Pid} = gen_server:start(?MODULE, [], []),
+    ok = gen_server:stop(Pid),
+    false = erlang:is_process_alive(Pid),
+    {'EXIT',noproc} = (catch gen_server:stop(Pid)),
+    ok.
+
+%% Anonymous, other reason
+stop2(_Config) ->
+    {ok,Pid} = gen_server:start(?MODULE, [], []),
+    ok = gen_server:stop(Pid, other_reason, infinity),
+    false = erlang:is_process_alive(Pid),
+    ok.
+
+%% Anonymous, invalid timeout
+stop3(_Config) ->
+    {ok,Pid} = gen_server:start(?MODULE, [], []),
+    {'EXIT',_} = (catch gen_server:stop(Pid, other_reason, invalid_timeout)),
+    true = erlang:is_process_alive(Pid),
+    ok = gen_server:stop(Pid),
+    false = erlang:is_process_alive(Pid),
+    ok.
+
+%% Registered name
+stop4(_Config) ->
+    {ok,Pid} = gen_server:start({local,to_stop},?MODULE, [], []),
+    ok = gen_server:stop(to_stop),
+    false = erlang:is_process_alive(Pid),
+    {'EXIT',noproc} = (catch gen_server:stop(to_stop)),
+    ok.
+
+%% Registered name and local node
+stop5(_Config) ->
+    {ok,Pid} = gen_server:start({local,to_stop},?MODULE, [], []),
+    ok = gen_server:stop({to_stop,node()}),
+    false = erlang:is_process_alive(Pid),
+    {'EXIT',noproc} = (catch gen_server:stop({to_stop,node()})),
+    ok.
+
+%% Globally registered name
+stop6(_Config) ->
+    {ok, Pid} = gen_server:start({global, to_stop}, ?MODULE, [], []),
+    ok = gen_server:stop({global,to_stop}),
+    false = erlang:is_process_alive(Pid),
+    {'EXIT',noproc} = (catch gen_server:stop({global,to_stop})),
+    ok.
+
+%% 'via' registered name
+stop7(_Config) ->
+    dummy_via:reset(),
+    {ok, Pid} = gen_server:start({via, dummy_via, to_stop},
+				  ?MODULE, [], []),
+    ok = gen_server:stop({via, dummy_via, to_stop}),
+    false = erlang:is_process_alive(Pid),
+    {'EXIT',noproc} = (catch gen_server:stop({via, dummy_via, to_stop})),
+    ok.
+
+%% Anonymous on remote node
+stop8(_Config) ->
+    {ok,Node} = test_server:start_node(gen_server_SUITE_stop8,slave,[]),
+    Dir = filename:dirname(code:which(?MODULE)),
+    rpc:call(Node,code,add_path,[Dir]),
+    {ok, Pid} = rpc:call(Node,gen_server,start,[?MODULE,[],[]]),
+    ok = gen_server:stop(Pid),
+    false = rpc:call(Node,erlang,is_process_alive,[Pid]),
+    {'EXIT',noproc} = (catch gen_server:stop(Pid)),
+    true = test_server:stop_node(Node),
+    {'EXIT',{{nodedown,Node},_}} = (catch gen_server:stop(Pid)),
+    ok.
+
+%% Registered name on remote node
+stop9(_Config) ->
+    {ok,Node} = test_server:start_node(gen_server_SUITE_stop9,slave,[]),
+    Dir = filename:dirname(code:which(?MODULE)),
+    rpc:call(Node,code,add_path,[Dir]),
+    {ok, Pid} = rpc:call(Node,gen_server,start,[{local,to_stop},?MODULE,[],[]]),
+    ok = gen_server:stop({to_stop,Node}),
+    undefined = rpc:call(Node,erlang,whereis,[to_stop]),
+    false = rpc:call(Node,erlang,is_process_alive,[Pid]),
+    {'EXIT',noproc} = (catch gen_server:stop({to_stop,Node})),
+    true = test_server:stop_node(Node),
+    {'EXIT',{{nodedown,Node},_}} = (catch gen_server:stop({to_stop,Node})),
+    ok.
+
+%% Globally registered name on remote node
+stop10(_Config) ->
+    {ok,Node} = test_server:start_node(gen_server_SUITE_stop10,slave,[]),
+    Dir = filename:dirname(code:which(?MODULE)),
+    rpc:call(Node,code,add_path,[Dir]),
+    {ok, Pid} = rpc:call(Node,gen_server,start,[{global,to_stop},?MODULE,[],[]]),
+    global:sync(),
+    ok = gen_server:stop({global,to_stop}),
+    false = rpc:call(Node,erlang,is_process_alive,[Pid]),
+    {'EXIT',noproc} = (catch gen_server:stop({global,to_stop})),
+    true = test_server:stop_node(Node),
+    {'EXIT',noproc} = (catch gen_server:stop({global,to_stop})),
+    ok.
+
 crash(Config) when is_list(Config) ->
     ?line error_logger_forwarder:register(),
 
@@ -538,15 +641,13 @@ info(Config) when is_list(Config) ->
 	  end,
     ok.
 
-hibernate(suite) -> [];
 hibernate(Config) when is_list(Config) ->
     OldFl = process_flag(trap_exit, true),
-    ?line {ok, Pid0} =
+    {ok, Pid0} =
 	gen_server:start_link({local, my_test_name_hibernate0},
-			 gen_server_SUITE, hibernate, []),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = erlang:process_info(Pid0,current_function),
-    ?line ok = gen_server:call(my_test_name_hibernate0, stop),
+			      gen_server_SUITE, hibernate, []),
+    is_in_erlang_hibernate(Pid0),
+    ok = gen_server:call(my_test_name_hibernate0, stop),
     receive 
 	{'EXIT', Pid0, stopped} ->
  	    ok
@@ -554,70 +655,66 @@ hibernate(Config) when is_list(Config) ->
 	    test_server:fail(gen_server_did_not_die)
     end,
 
-    ?line {ok, Pid} =
+    {ok, Pid} =
 	gen_server:start_link({local, my_test_name_hibernate},
-			 gen_server_SUITE, [], []),
+			      gen_server_SUITE, [], []),
 
-    ?line ok = gen_server:call(my_test_name_hibernate, started_p),
-    ?line true = gen_server:call(my_test_name_hibernate, hibernate),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function),
-    ?line Parent = self(),
+    ok = gen_server:call(my_test_name_hibernate, started_p),
+    true = gen_server:call(my_test_name_hibernate, hibernate),
+    is_in_erlang_hibernate(Pid),
+    Parent = self(),
     Fun = fun() ->
- 		  receive
- 		      go ->
- 			  ok
- 		  end,
- 		  receive 
- 		  after 1000 ->
- 			  ok 
- 		  end,
- 		  X = erlang:process_info(Pid,current_function),
+		  receive go -> ok end,
+		  receive after 1000 -> ok end,
+		  X = erlang:process_info(Pid, current_function),
  		  Pid ! continue,
  		  Parent ! {result,X}
  	  end,
-    ?line Pid2 = spawn_link(Fun),
-    ?line true = gen_server:call(my_test_name_hibernate, {hibernate_noreply,Pid2}),
-
-    ?line gen_server:cast(my_test_name_hibernate, hibernate_later),
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
-    ?line receive after 2000 -> ok end,
-    ?line ({current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function)),
-    ?line ok = gen_server:call(my_test_name_hibernate, started_p),
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
-    ?line gen_server:cast(my_test_name_hibernate, hibernate_now),
-    ?line receive after 1000 -> ok end,
-    ?line ({current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function)),
-    ?line ok = gen_server:call(my_test_name_hibernate, started_p),
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
-    ?line Pid ! hibernate_later,
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
-    ?line receive after 2000 -> ok end,
-    ?line ({current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function)),
-    ?line ok = gen_server:call(my_test_name_hibernate, started_p),
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
-    ?line Pid ! hibernate_now,
-    ?line receive after 1000 -> ok end,
-    ?line ({current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function)),
-    ?line ok = gen_server:call(my_test_name_hibernate, started_p),
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
-    ?line receive
- 	      {result,R} ->
- 		  ?line  {current_function,{erlang,hibernate,3}} = R
- 	  end,
-    ?line true = gen_server:call(my_test_name_hibernate, hibernate),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function),
-    ?line sys:suspend(my_test_name_hibernate),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function),
-    ?line sys:resume(my_test_name_hibernate),
-    ?line receive after 1000 -> ok end,
-    ?line {current_function,{erlang,hibernate,3}} = erlang:process_info(Pid,current_function),
-    ?line ok = gen_server:call(my_test_name_hibernate, started_p),
-    ?line true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
-    
-    ?line ok = gen_server:call(my_test_name_hibernate, stop),
+    Pid2 = spawn_link(Fun),
+    true = gen_server:call(my_test_name_hibernate, {hibernate_noreply,Pid2}),
+
+    gen_server:cast(my_test_name_hibernate, hibernate_later),
+    true = ({current_function,{erlang,hibernate,3}} =/=
+		erlang:process_info(Pid, current_function)),
+    is_in_erlang_hibernate(Pid),
+    ok = gen_server:call(my_test_name_hibernate, started_p),
+    true = ({current_function,{erlang,hibernate,3}} =/=
+		erlang:process_info(Pid, current_function)),
+
+    gen_server:cast(my_test_name_hibernate, hibernate_now),
+    is_in_erlang_hibernate(Pid),
+    ok = gen_server:call(my_test_name_hibernate, started_p),
+    true = ({current_function,{erlang,hibernate,3}} =/=
+		erlang:process_info(Pid, current_function)),
+
+    Pid ! hibernate_later,
+    true = ({current_function,{erlang,hibernate,3}} =/=
+		erlang:process_info(Pid, current_function)),
+    is_in_erlang_hibernate(Pid),
+    ok = gen_server:call(my_test_name_hibernate, started_p),
+    true = ({current_function,{erlang,hibernate,3}} =/=
+		erlang:process_info(Pid, current_function)),
+
+    Pid ! hibernate_now,
+    is_in_erlang_hibernate(Pid),
+    ok = gen_server:call(my_test_name_hibernate, started_p),
+    true = ({current_function,{erlang,hibernate,3}} =/=
+		erlang:process_info(Pid, current_function)),
+    receive
+	{result,R} ->
+	    {current_function,{erlang,hibernate,3}} = R
+    end,
+
+    true = gen_server:call(my_test_name_hibernate, hibernate),
+    is_in_erlang_hibernate(Pid),
+    sys:suspend(my_test_name_hibernate),
+    is_in_erlang_hibernate(Pid),
+    sys:resume(my_test_name_hibernate),
+    is_in_erlang_hibernate(Pid),
+    ok = gen_server:call(my_test_name_hibernate, started_p),
+    true = ({current_function,{erlang,hibernate,3}} =/= erlang:process_info(Pid,current_function)),
+
+    ok = gen_server:call(my_test_name_hibernate, stop),
     receive 
 	{'EXIT', Pid, stopped} ->
  	    ok
@@ -627,6 +724,23 @@ hibernate(Config) when is_list(Config) ->
     process_flag(trap_exit, OldFl),
     ok.
 
+is_in_erlang_hibernate(Pid) ->
+    receive after 1 -> ok end,
+    is_in_erlang_hibernate_1(200, Pid).
+
+is_in_erlang_hibernate_1(0, Pid) ->
+    io:format("~p\n", [erlang:process_info(Pid, current_function)]),
+    ?t:fail(not_in_erlang_hibernate_3);
+is_in_erlang_hibernate_1(N, Pid) ->
+    {current_function,MFA} = erlang:process_info(Pid, current_function),
+    case MFA of
+	{erlang,hibernate,3} ->
+	    ok;
+	_ ->
+	    receive after 10 -> ok end,
+	    is_in_erlang_hibernate_1(N-1, Pid)
+    end.
+
 %% --------------------------------------
 %% Test gen_server:abcast and handle_cast.
 %% Test all different return values from
diff --git a/lib/stdlib/test/io_SUITE.erl b/lib/stdlib/test/io_SUITE.erl
index 2203dd8f51..8d53949c40 100644
--- a/lib/stdlib/test/io_SUITE.erl
+++ b/lib/stdlib/test/io_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1999-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2014. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -31,7 +31,7 @@
 	 printable_range/1,
 	 io_lib_print_binary_depth_one/1, otp_10302/1, otp_10755/1,
          otp_10836/1, io_lib_width_too_small/1,
-         io_with_huge_message_queue/1]).
+         io_with_huge_message_queue/1, format_string/1]).
 
 -export([pretty/2]).
 
@@ -71,7 +71,8 @@ all() ->
      io_fread_newlines, otp_8989, io_lib_fread_literal,
      printable_range,
      io_lib_print_binary_depth_one, otp_10302, otp_10755, otp_10836,
-     io_lib_width_too_small, io_with_huge_message_queue].
+     io_lib_width_too_small, io_with_huge_message_queue,
+     format_string].
 
 groups() -> 
     [].
@@ -1035,7 +1036,14 @@ rp(Term, Col, Ll, D, M, RF) ->
     lists:flatten(io_lib:format("~s", [R])).
 
 fmt(Fmt, Args) ->
-    lists:flatten(io_lib:format(Fmt, Args)).
+    FormatList = io_lib:scan_format(Fmt, Args),
+    {Fmt2, Args2} = io_lib:unscan_format(FormatList),
+    Chars1 = lists:flatten(io_lib:build_text(FormatList)),
+    Chars2 = lists:flatten(io_lib:format(Fmt2, Args2)),
+    Chars3 = lists:flatten(io_lib:format(Fmt, Args)),
+    Chars1 = Chars2,
+    Chars2 = Chars3,
+    Chars3.
 
 rfd(a, 0) ->
     [];
@@ -2261,3 +2269,9 @@ writes(0, _) -> ok;
 writes(N, F1) ->
     file:write(F1, "hello\n"),
     writes(N - 1, F1).
+
+format_string(Config) ->
+    %% All but padding is tested by fmt/2.
+    "xxxxxxsssx" = fmt("~10.4.xs", ["sss"]),
+    "xxxxxxsssx" = fmt("~10.4.*s", [$x, "sss"]),
+    ok.
diff --git a/lib/stdlib/test/io_proto_SUITE.erl b/lib/stdlib/test/io_proto_SUITE.erl
index 76a8109a8d..78432789cd 100644
--- a/lib/stdlib/test/io_proto_SUITE.erl
+++ b/lib/stdlib/test/io_proto_SUITE.erl
@@ -69,12 +69,7 @@
 
 init_per_testcase(_Case, Config) ->
     ?line Dog = ?t:timetrap(?default_timeout),
-    Term = case os:getenv("TERM") of
-	       List when is_list(List) ->
-		   List;
-	       _ ->
-		   "dumb"
-	   end,
+    Term = os:getenv("TERM", "dumb"),
     os:putenv("TERM","vt100"),
     [{watchdog, Dog}, {term, Term} | Config].
 end_per_testcase(_Case, Config) ->
@@ -481,149 +476,182 @@ unicode_options(Config) when is_list(Config) ->
 
     ok.
     
-unicode_options_gen(suite) ->		   
-    [];
-unicode_options_gen(doc) ->
-    ["Tests various unicode options on random generated files"];
+%% Tests various unicode options on random generated files.
 unicode_options_gen(Config) when is_list(Config) ->
-    ?line random:seed(1240,900586,553728),
-    ?line PrivDir = ?config(priv_dir,Config),
-    ?line AllModes = [utf8,utf16,{utf16,big},{utf16,little},utf32,{utf32,big},{utf32,little}],
-    ?line FSize = 17*1024,
-    ?line NumItersRead = 2,
-    ?line NumItersWrite = 2,
-    ?line Dir =  filename:join([PrivDir,"GENDATA1"]),
-    ?line file:make_dir(Dir),
-
-    %dbg:tracer(process,{fun(A,_) -> erlang:display(A) end,true}),
-    %dbg:tpl(file_io_server,x),
-    %dbg:ctpl(file_io_server,cafu),
-    %dbg:tp(unicode,x),
-
-    DoOneFile1 = fun(Encoding,N,M) ->
-			 ?dbg({Encoding,M,N}),
-			 io:format("Read test: Encoding ~p, Chunk size ~p, Iteration ~p~n",[Encoding,M,N]),
-			 io:format(standard_error,"Read test: Encoding ~p, Chunk size ~p, Iteration ~p\r\n",[Encoding,M,N]),
-			 ?line Fname = filename:join([Dir,"genfile_"++enc2str(Encoding)++"_"++integer_to_list(N)]), 
-			 ?dbg(?LINE),
-			 ?line Ulist = random_unicode(FSize),
-			 ?dbg(?LINE),
-			 ?line my_write_file(Fname,Ulist,Encoding),
-			 ?dbg(?LINE),
-			 ?line {ok,F1} = file:open(Fname,[read,{encoding,Encoding}]),
-			 
-			 ?dbg(?LINE),
-			 ?line Res1 = read_whole_file(fun(FD) -> io:get_line(FD,'') end,F1),
-			 ?dbg(?LINE),
-			 ?line Ulist = unicode:characters_to_list(Res1,unicode),
-			 ?dbg(?LINE),
-			 ?line file:close(F1),
-			 ?line {ok,F2} = file:open(Fname, [read,binary,{encoding,Encoding}]),
-			 ?line Res2 = read_whole_file(fun(FD) -> io:get_chars(FD,'',M) end,F2),
-			 ?line Ulist = unicode:characters_to_list(Res2,unicode),
-			 ?dbg(?LINE),
-			 ?line file:close(F2),
-			 ?line {ok,F3} = file:open(Fname, [read,binary,{encoding,Encoding}]),
-			 ?dbg(?LINE),
-%% 			 case {Encoding,M,N} of
-%% 			     {{utf16,little},10,2} ->
-%% 				 dbg:p(F3,call);
-%% 			     _ ->
-%% 				 ok
-%% 			 end,
-
-			 ?line Res3 = read_whole_file(fun(FD) -> case io:fread(FD,'',"~ts") of {ok,D} -> D; O -> O end end, F3),
-			 ?dbg(?LINE),
-			 ?line Ulist2 = [ X || X <- Ulist,
-					       X =/= $\n, X =/= $  ],
-			 ?dbg(?LINE),
-			 ?line Ulist2 = unicode:characters_to_list(Res3,unicode),
-			 ?dbg(?LINE),
-			 ?line file:close(F3),
-			 ?line {ok,F4} = file:open(Fname, [read,{encoding,Encoding}]),
-			 ?line Res4 = read_whole_file(fun(FD) -> case io:fread(FD,'',"~tc") of {ok,D} -> D; O -> O end end,F4),
-			 ?line Ulist3 = [ X || X <- Ulist,
-					       X =/= $\n ],
-			 ?line Ulist3 = unicode:characters_to_list(Res4,unicode),
-			 ?dbg(?LINE),
-			 ?line file:close(F4),
-			 ?line file:delete(Fname)
-		 end,
-    
-    [ [ [ DoOneFile1(E,N,M) || E <- AllModes ] || M <- [10,1000,128,1024,8192,8193] ] || N <- lists:seq(1,NumItersRead)],
-    DoOneFile2 = fun(Encoding,N,M) ->
-			 ?dbg({Encoding,M,N}),
-			 io:format("Write test: Encoding ~p, Chunk size ~p, Iteration ~p~n",[Encoding,M,N]),
-			 io:format(standard_error,"Write test: Encoding ~p, Chunk size ~p, Iteration ~p\r\n",[Encoding,M,N]),
-			 ?line Fname = filename:join([Dir,"genfile_"++enc2str(Encoding)++"_"++integer_to_list(N)]), 
-			 ?dbg(?LINE),
-			 ?line Ulist = random_unicode(FSize),
-			 ?dbg(?LINE),
-			 ?line {ok,F1} = file:open(Fname,[write,{encoding,Encoding}]),
-			 ?line io:put_chars(F1,Ulist),
-			 ?line file:close(F1),
-			 ?line Ulist = my_read_file(Fname,Encoding),
-			 ?line file:delete(Fname),
-			 ?line {ok,F2} = file:open(Fname,[write,binary,{encoding,Encoding}]),
-			 ?line io:put_chars(F2,Ulist),
-			 ?line file:close(F2),
-			 ?line Ulist = my_read_file(Fname,Encoding),
-			 ?line file:delete(Fname),
-			 ?line {ok,F3} = file:open(Fname,[write,{encoding,Encoding}]),
-			 ?line LL = string:tokens(Ulist,"\n"),
-			 ?line Ulist2 = lists:flatten(LL),
-			 ?line [ io:format(F3,"~ts",[L]) || L <- LL ],
-			 ?line file:close(F3),
-			 ?line Ulist2 = my_read_file(Fname,Encoding),
-			 ?line file:delete(Fname),
-			 ?line {ok,F4} = file:open(Fname,[write,{encoding,Encoding}]),
-			 ?line [ io:format(F4,"~tc",[C]) || C <- Ulist ],
-			 ?line file:close(F4),
-			 ?line Ulist = my_read_file(Fname,Encoding),
-			 ?line file:delete(Fname),
-			 ?line {ok,F5} = file:open(Fname,[write,{encoding,Encoding}]),
-			 ?line io:put_chars(F5,unicode:characters_to_binary(Ulist)),
-			 ?line file:close(F5),
-			 ?line Ulist = my_read_file(Fname,Encoding),
-			 ?line file:delete(Fname),
-			 ok
-		 end,
-    [ [ [ DoOneFile2(E,N,M) || E <- AllModes ] || M <- [10,1000,128,1024,8192,8193] ] || N <- lists:seq(1,NumItersWrite)],
+    random:seed(1240, 900586, 553728),
+    PrivDir = ?config(priv_dir, Config),
+    AllModes = [utf8,utf16,{utf16,big},{utf16,little},
+		utf32,{utf32,big},{utf32,little}],
+    FSize = 9*1024,
+    NumItersRead = 2,
+    NumItersWrite = 2,
+    Dir = filename:join(PrivDir, "GENDATA1"),
+    file:make_dir(Dir),
+
+    DoOneFile1 =
+	fun(Encoding, N, M) ->
+		?dbg({Encoding,M,N}),
+		io:format("Read test: Encoding ~p, Chunk size ~p, Iteration ~p~n",[Encoding,M,N]),
+		io:format(standard_error,
+			  "Read test: Encoding ~p, Chunk size ~p, Iteration ~p\r\n",[Encoding,M,N]),
+		Fname = filename:join(Dir,
+				      "genfile_"++enc2str(Encoding)++
+					  "_"++integer_to_list(N)),
+		Ulist = random_unicode(FSize),
+		Bin = unicode:characters_to_binary(Ulist, utf8, Encoding),
+		ok = file:write_file(Fname, Bin),
+
+		Read1 = fun(FD) -> io:get_line(FD, '') end,
+		Res1 = read_whole_file(Fname,
+				       [read,read_ahead,{encoding,Encoding}],
+				       Read1),
+
+		Read2 = fun(FD) -> io:get_chars(FD, '', M) end,
+		Res2 = read_whole_file(Fname,
+				       [read,binary,
+					read_ahead,{encoding,Encoding}],
+				       Read2),
+
+		Read3 = fun(FD) ->
+				case io:fread(FD, '', "~ts") of
+				    {ok,D} -> D;
+				    Other -> Other end
+			end,
+		Res3 = read_whole_file(Fname,
+				       [read,binary,
+					read_ahead,{encoding,Encoding}],
+				       Read3),
+
+		Read4 = fun(FD) ->
+				case io:fread(FD, '', "~ts") of
+				    {ok,D} -> D;
+				    Other -> Other end
+			end,
+		Res4 = read_whole_file(Fname,
+				       [read,read_ahead,{encoding,Encoding}],
+				       Read4),
+
+		Ulist2 = [X || X <- Ulist, X =/= $\n, X =/= $\s],
+		Ulist3 = [X || X <- Ulist, X =/= $\n],
+		Ulist = done(Res1),
+		Ulist = done(Res2),
+		Ulist2 = done(Res3),
+		Ulist3 = done(Res4),
+
+		file:delete(Fname)
+	end,
+    [ [ [ DoOneFile1(E, N, M) || E <- AllModes ] ||
+	  M <- [10,1000,128,1024,8192,8193] ] ||
+	N <- lists:seq(1, NumItersRead) ],
+
+    DoOneFile2 =
+	fun(Encoding,N,M) ->
+		?dbg({Encoding,M,N}),
+		io:format("Write test: Encoding ~p, Chunk size ~p, Iteration ~p~n",[Encoding,M,N]),
+		io:format(standard_error,
+			  "Write test: Encoding ~p, Chunk size ~p, Iteration ~p\r\n",[Encoding,M,N]),
+		Fname = filename:join(Dir,
+				      "genfile_"++enc2str(Encoding)++
+					  "_"++integer_to_list(N)),
+		Ulist = random_unicode(FSize),
+
+		Res1 = write_read_file(Fname, 1,
+				       [write],
+				       Encoding,
+				       fun(FD) -> io:put_chars(FD, Ulist) end),
+
+		Res2 = write_read_file(Fname, 2,
+				       [write,binary],
+				       Encoding,
+				       fun(FD) -> io:put_chars(FD, Ulist) end),
+
+		Fun3 = fun(FD) ->
+			       _ = [io:format(FD, "~tc", [C]) || C <- Ulist],
+			       ok
+		       end,
+		Res3 = write_read_file(Fname, 3,
+				       [write],
+				       Encoding,
+				       Fun3),
+
+		Fun4 = fun(FD) ->
+			       io:put_chars(FD,
+					    unicode:characters_to_binary(Ulist))
+		       end,
+		Res4 = write_read_file(Fname, 4,
+				       [write],
+				       Encoding,
+				       Fun4),
+
+		LL = string:tokens(Ulist, "\n"),
+		Fun5 = fun(FD) ->
+			       _ = [io:format(FD, "~ts", [L]) || L <- LL],
+			       ok
+		       end,
+		Res5 = write_read_file(Fname, 5,
+				       [write],
+				       Encoding,
+				       Fun5),
+
+		Ulist2 = lists:flatten(LL),
+		ResBin = done(Res1),
+		ResBin = done(Res2),
+		ResBin = done(Res3),
+		ResBin = done(Res4),
+		Ulist = unicode:characters_to_list(ResBin, Encoding),
+
+		ResBin2 = done(Res5),
+		Ulist2 = unicode:characters_to_list(ResBin2, Encoding),
+
+		ok
+	end,
+    [ [ [ DoOneFile2(E, N, M) || E <- AllModes ] ||
+	  M <- [10,1000,128,1024,8192,8193] ] ||
+	N <- lists:seq(1, NumItersWrite) ],
     ok.
 
+read_whole_file(Fname, Options, Fun) ->
+    do(fun() ->
+	       do_read_whole_file(Fname, Options, Fun)
+       end).
 
+do_read_whole_file(Fname, Options, Fun) ->
+    {ok,F} = file:open(Fname, Options),
+    Res = do_read_whole_file_1(Fun, F),
+    ok = file:close(F),
+    unicode:characters_to_list(Res, unicode).
 			 
-			 
-read_whole_file(Fun,F) ->			 
+do_read_whole_file_1(Fun, F) ->
     case Fun(F) of
 	eof ->
 	    [];
 	{error,Error} ->
-	    ?dbg(Error),
 	    receive after 10000 -> ok end,
 	    exit(Error);
 	Other ->
-	    %?dbg(Other),
-	    [Other | read_whole_file(Fun,F)]
+	    [Other|do_read_whole_file_1(Fun, F)]
     end.
-			
 
+write_read_file(Fname0, N, Options, Enc, Writer) ->
+    Fname = Fname0 ++ "_" ++ integer_to_list(N),
+    do(fun() ->
+	       do_write_read_file(Fname, Options, Enc, Writer)
+       end).
+
+do_write_read_file(Fname, Options, Encoding, Writer) ->
+    {ok,F} = file:open(Fname, [{encoding,Encoding}|Options]),
+    Writer(F),
+    ok = file:close(F),
+    {ok,Bin} = file:read_file(Fname),
+    ok = file:delete(Fname),
+    Bin.
+			
 enc2str(Atom) when is_atom(Atom) ->
     atom_to_list(Atom);
 enc2str({A1,A2}) when is_atom(A1), is_atom(A2) ->
     atom_to_list(A1)++"_"++atom_to_list(A2).
 
 
-
-
-my_write_file(Filename,UniList,Encoding) ->
-    Bin = unicode:characters_to_binary(UniList,utf8,Encoding),
-    file:write_file(Filename,Bin).
-
-my_read_file(Filename,Encoding) ->
-    {ok,Bin} = file:read_file(Filename),
-    unicode:characters_to_list(Bin,Encoding).
-
 random_unicode(0) ->
     [];
 random_unicode(N) ->
@@ -1738,8 +1766,7 @@ toerl_loop(Port,Acc) ->
     end.
 	
 millistamp() ->
-    {Mega, Secs, Micros} = erlang:now(),
-    (Micros div 1000) + Secs * 1000 + Mega * 1000000000.
+    erlang:monotonic_time(milli_seconds).
     
 get_data_within(Port, X, Acc) when X =< 0 ->
     ?dbg({get_data_within, X, Acc, ?LINE}),
@@ -1937,3 +1964,15 @@ chomp(<<Ch,Rest/binary>>) ->
     <<Ch,X/binary>>;
 chomp(Atom) ->
     Atom.
+
+do(Fun) ->
+    {_,Ref} = spawn_monitor(fun() ->
+				    exit(Fun())
+			    end),
+    Ref.
+
+done(Ref) ->
+    receive
+	{'DOWN',Ref,process,_,Result} ->
+	    Result
+    end.
diff --git a/lib/stdlib/test/lists_SUITE.erl b/lib/stdlib/test/lists_SUITE.erl
index f4589a8e24..01c138d94c 100644
--- a/lib/stdlib/test/lists_SUITE.erl
+++ b/lib/stdlib/test/lists_SUITE.erl
@@ -1704,7 +1704,7 @@ fun_pid(Fun) ->
 get_seed() ->
     case random:seed() of
 	undefined ->
-	    now();
+	    erlang:timestamp();
 	Tuple ->
 	    Tuple
     end.
diff --git a/lib/stdlib/test/maps_SUITE.erl b/lib/stdlib/test/maps_SUITE.erl
index dda20a615b..f8f241d834 100644
--- a/lib/stdlib/test/maps_SUITE.erl
+++ b/lib/stdlib/test/maps_SUITE.erl
@@ -34,13 +34,23 @@
 -export([init_per_testcase/2]).
 -export([end_per_testcase/2]).
 
--export([t_get_3/1,t_with_2/1,t_without_2/1]).
+-export([t_get_3/1, t_filter_2/1,
+         t_fold_3/1,t_map_2/1,t_size_1/1,
+         t_with_2/1,t_without_2/1]).
+
+%-define(badmap(V,F,Args), {'EXIT', {{badmap,V}, [{maps,F,Args,_}|_]}}).
+%-define(badarg(F,Args), {'EXIT', {badarg, [{maps,F,Args,_}|_]}}).
+% silly broken hipe
+-define(badmap(V,F,_Args), {'EXIT', {{badmap,V}, [{maps,F,_,_}|_]}}).
+-define(badarg(F,_Args), {'EXIT', {badarg, [{maps,F,_,_}|_]}}).
 
 suite() ->
     [{ct_hooks, [ts_install_cth]}].
 
 all() ->
-    [t_get_3,t_with_2,t_without_2].
+    [t_get_3,t_filter_2,
+     t_fold_3,t_map_2,t_size_1,
+     t_with_2,t_without_2].
 
 init_per_suite(Config) ->
     Config.
@@ -63,6 +73,9 @@ t_get_3(Config) when is_list(Config) ->
     value1 = maps:get(key1, Map, DefaultValue),
     value2 = maps:get(key2, Map, DefaultValue),
     DefaultValue = maps:get(key3, Map, DefaultValue),
+
+    %% error case
+    ?badmap(a,get,[[a,b],a,def]) = (catch maps:get([a,b],id(a),def)),
     ok.
 
 t_without_2(_Config) ->
@@ -70,6 +83,11 @@ t_without_2(_Config) ->
     M0 = maps:from_list([{{k,I},{v,I}}||I<-lists:seq(1,100)]),
     M1 = maps:from_list([{{k,I},{v,I}}||I<-lists:seq(1,100) -- Ki]),
     M1 = maps:without([{k,I}||I <- Ki],M0),
+
+    %% error case
+    ?badmap(a,without,[[a,b],a]) = (catch maps:without([a,b],id(a))),
+    ?badmap(a,without,[{a,b},a]) = (catch maps:without({a,b},id(a))),
+    ?badarg(without,[a,#{}]) = (catch maps:without(a,#{})),
     ok.
 
 t_with_2(_Config) ->
@@ -77,4 +95,63 @@ t_with_2(_Config) ->
     M0 = maps:from_list([{{k,I},{v,I}}||I<-lists:seq(1,100)]),
     M1 = maps:from_list([{{k,I},{v,I}}||I<-Ki]),
     M1 = maps:with([{k,I}||I <- Ki],M0),
+
+    %% error case
+    ?badmap(a,with,[[a,b],a]) = (catch maps:with([a,b],id(a))),
+    ?badmap(a,with,[{a,b},a]) = (catch maps:with({a,b},id(a))),
+    ?badarg(with,[a,#{}]) = (catch maps:with(a,#{})),
+    ok.
+
+t_filter_2(Config) when is_list(Config) ->
+    M = #{a => 2, b => 3, c=> 4, "a" => 1, "b" => 2, "c" => 4},
+    Pred1 = fun(K,V) -> is_atom(K) andalso (V rem 2) =:= 0 end,
+    Pred2 = fun(K,V) -> is_list(K) andalso (V rem 2) =:= 0 end,
+    #{a := 2,c := 4} = maps:filter(Pred1,M),
+    #{"b" := 2,"c" := 4} = maps:filter(Pred2,M),
+    %% error case
+    ?badmap(a,filter,[_,a]) = (catch maps:filter(fun(_,_) -> ok end,id(a))),
+    ?badarg(filter,[<<>>,#{}]) = (catch maps:filter(id(<<>>),#{})),
+    ok.
+
+t_fold_3(Config) when is_list(Config) ->
+    Vs = lists:seq(1,200),
+    M0 = maps:from_list([{{k,I},I}||I<-Vs]),
+    #{ {k,1} := 1, {k,200} := 200} = M0,
+    Tot0 = lists:sum(Vs),
+    Tot1 = maps:fold(fun({k,_},V,A) -> A + V end, 0, M0),
+    true = Tot0 =:= Tot1,
+
+    %% error case
+    ?badmap(a,fold,[_,0,a]) = (catch maps:fold(fun(_,_,_) -> ok end,0,id(a))),
+    ?badarg(fold,[<<>>,0,#{}]) = (catch maps:fold(id(<<>>),0,#{})),
     ok.
+
+t_map_2(Config) when is_list(Config) ->
+    Vs = lists:seq(1,200),
+    M0 = maps:from_list([{{k,I},I}||I<-Vs]),
+    #{ {k,1} := 1, {k,200} := 200} = M0,
+    M1 = maps:map(fun({k,_},V) -> V + 42 end, M0),
+    #{ {k,1} := 43, {k,200} := 242} = M1,
+
+    %% error case
+    ?badmap(a,map,[_,a]) = (catch maps:map(fun(_,_) -> ok end, id(a))),
+    ?badarg(map,[<<>>,#{}]) = (catch maps:map(id(<<>>),#{})),
+    ok.
+
+
+t_size_1(Config) when is_list(Config) ->
+      0 = maps:size(#{}),
+     10 = maps:size(maps:from_list([{{"k",I},I}||I<-lists:seq(1,10)])),
+     20 = maps:size(maps:from_list([{{"k",I},I}||I<-lists:seq(1,20)])),
+     30 = maps:size(maps:from_list([{{"k",I},I}||I<-lists:seq(1,30)])),
+     40 = maps:size(maps:from_list([{{"k",I},I}||I<-lists:seq(1,40)])),
+     50 = maps:size(maps:from_list([{{"k",I},I}||I<-lists:seq(1,50)])),
+     60 = maps:size(maps:from_list([{{"k",I},I}||I<-lists:seq(1,60)])),
+    600 = maps:size(maps:from_list([{{"k",I},I}||I<-lists:seq(1,600)])),
+
+    %% error case
+    ?badmap(a,size,[a]) = (catch maps:size(id(a))),
+    ?badmap(<<>>,size,[<<>>]) = (catch maps:size(id(<<>>))),
+    ok.
+
+id(I) -> I.
diff --git a/lib/stdlib/test/proc_lib_SUITE.erl b/lib/stdlib/test/proc_lib_SUITE.erl
index 8dca69bac4..b6f1973a05 100644
--- a/lib/stdlib/test/proc_lib_SUITE.erl
+++ b/lib/stdlib/test/proc_lib_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1996-2012. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2014. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -27,7 +27,7 @@
 	 init_per_group/2,end_per_group/2, 
 	 crash/1, sync_start_nolink/1, sync_start_link/1,
          spawn_opt/1, sp1/0, sp2/0, sp3/1, sp4/2, sp5/1,
-	 hibernate/1]).
+	 hibernate/1, stop/1]).
 -export([ otp_6345/1, init_dont_hang/1]).
 
 -export([hib_loop/1, awaken/1]).
@@ -38,6 +38,7 @@
 
 -export([otp_6345_init/1, init_dont_hang_init/1]).
 
+-export([system_terminate/4]).
 
 -ifdef(STANDALONE).
 -define(line, noop, ).
@@ -49,7 +50,7 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() -> 
     [crash, {group, sync_start}, spawn_opt, hibernate,
-     {group, tickets}].
+     {group, tickets}, stop].
 
 groups() -> 
     [{tickets, [], [otp_6345, init_dont_hang]},
@@ -361,10 +362,94 @@ init_dont_hang(Config) when is_list(Config) ->
 	    exit(Error)
     end.
 
-init_dont_hang_init(Parent) ->
+init_dont_hang_init(_Parent) ->
     1 = 2.
 
+%% Test proc_lib:stop/1,3
+stop(_Config) ->
+    Parent = self(),
+    SysMsgProc =
+	fun() ->
+		receive
+		    {system,From,Request} ->
+			sys:handle_system_msg(Request,From,Parent,?MODULE,[],[])
+		end
+	end,
+
+    %% Normal case:
+    %% Process handles system message and terminated with given reason
+    Pid1 = proc_lib:spawn(SysMsgProc),
+    ok = proc_lib:stop(Pid1),
+    false = erlang:is_process_alive(Pid1),
+
+    %% Process does not exit
+    {'EXIT',noproc} = (catch proc_lib:stop(Pid1)),
+
+    %% Badly handled system message
+    DieProc =
+	fun() ->
+		receive
+		    {system,_From,_Request} ->
+			exit(die)
+		end
+	end,
+    Pid2 = proc_lib:spawn(DieProc),
+    {'EXIT',{die,_}} = (catch proc_lib:stop(Pid2)),
+
+    %% Hanging process => timeout
+    HangProc =
+	fun() ->
+		receive
+		    {system,_From,_Request} ->
+			timer:sleep(5000)
+		end
+	end,
+    Pid3 = proc_lib:spawn(HangProc),
+    {'EXIT',timeout} = (catch proc_lib:stop(Pid3,normal,1000)),
+
+    %% Success case with other reason than 'normal'
+    Pid4 = proc_lib:spawn(SysMsgProc),
+    ok = proc_lib:stop(Pid4,other_reason,infinity),
+    false = erlang:is_process_alive(Pid4),
+
+    %% System message is handled, but process dies with other reason
+    %% than the given (in system_terminate/4 below)
+    Pid5 = proc_lib:spawn(SysMsgProc),
+    {'EXIT',{badmatch,2}} = (catch proc_lib:stop(Pid5,crash,infinity)),
+    false = erlang:is_process_alive(Pid5),
+
+    %% Local registered name
+    Pid6 = proc_lib:spawn(SysMsgProc),
+    register(to_stop,Pid6),
+    ok = proc_lib:stop(to_stop),
+    undefined = whereis(to_stop),
+    false = erlang:is_process_alive(Pid6),
+
+    %% Remote registered name
+    {ok,Node} = test_server:start_node(proc_lib_SUITE_stop,slave,[]),
+    Dir = filename:dirname(code:which(?MODULE)),
+    rpc:call(Node,code,add_path,[Dir]),
+    Pid7 = spawn(Node,SysMsgProc),
+    true = rpc:call(Node,erlang,register,[to_stop,Pid7]),
+    Pid7 = rpc:call(Node,erlang,whereis,[to_stop]),
+    ok = proc_lib:stop({to_stop,Node}),
+    undefined = rpc:call(Node,erlang,whereis,[to_stop]),
+    false = rpc:call(Node,erlang,is_process_alive,[Pid7]),
+
+    %% Local and remote registered name, but non-existing
+    {'EXIT',noproc} = (catch proc_lib:stop(to_stop)),
+    {'EXIT',noproc} = (catch proc_lib:stop({to_stop,Node})),
+
+    true = test_server:stop_node(Node),
+    
+    %% Remote registered name, but non-existing node
+    {'EXIT',{{nodedown,Node},_}} = (catch proc_lib:stop({to_stop,Node})),
+    ok.
 
+system_terminate(crash,_Parent,_Deb,_State) ->
+    1 = 2;
+system_terminate(Reason,_Parent,_Deb,_State) ->
+    exit(Reason).
 
 %%-----------------------------------------------------------------
 %% The error_logger handler used.
diff --git a/lib/stdlib/test/qlc_SUITE.erl b/lib/stdlib/test/qlc_SUITE.erl
index 37fbb5267b..56829fac5c 100644
--- a/lib/stdlib/test/qlc_SUITE.erl
+++ b/lib/stdlib/test/qlc_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2004-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2004-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -396,7 +396,8 @@ nomatch(Config) when is_list(Config) ->
               qlc:q([3 || {3=4} <- []]).
         ">>,
         [],
-        {warnings,[{{2,27},qlc,nomatch_pattern}]}},
+        %% {warnings,[{{2,27},qlc,nomatch_pattern}]}},
+        {warnings,[{2,v3_core,nomatch}]}},
 
        {nomatch2,
         <<"nomatch() ->
@@ -407,7 +408,8 @@ nomatch(Config) when is_list(Config) ->
           end, [{1},{2}]).
         ">>,
         [],
-        {warnings,[{{3,33},qlc,nomatch_pattern}]}},
+        %% {warnings,[{{3,33},qlc,nomatch_pattern}]}},
+        {warnings,[{3,v3_core,nomatch}]}},
  
        {nomatch3,
         <<"nomatch() ->
@@ -419,7 +421,8 @@ nomatch(Config) when is_list(Config) ->
                     end, [{1,2},{2,3}]).
         ">>,
         [],
-        {warnings,[{{3,52},qlc,nomatch_pattern}]}},
+        %% {warnings,[{{3,52},qlc,nomatch_pattern}]}},
+        {warnings,[{3,v3_core,nomatch}]}},
 
        {nomatch4,
         <<"nomatch() ->
@@ -2487,8 +2490,11 @@ info(Config) when is_list(Config) ->
                (catch qlc:info([X || {X} <- []], {n_elements, 0})),
           L = lists:seq(1, 1000),
           \"[1,2,3,4,5,6,7,8,9,10|'...']\" = qlc:info(L, {n_elements, 10}),
-          {cons,1,{integer,1,1},{atom,1,'...'}} = 
+          {cons,A1,{integer,A2,1},{atom,A3,'...'}} =
             qlc:info(L, [{n_elements, 1},{format,abstract_code}]),
+          1 = erl_anno:line(A1),
+          1 = erl_anno:line(A2),
+          1 = erl_anno:line(A3),
           Q = qlc:q([{X} || X <- [a,b,c,d,e,f]]),
           {call,_,_,[{cons,_,{atom,_,a},{cons,_,{atom,_,b},{cons,_,{atom,_,c},
                                                             {atom,_,'...'}}}},
@@ -2905,7 +2911,8 @@ lookup1(Config) when is_list(Config) ->
                  [] = qlc:e(Q),
                  false = lookup_keys(Q)
          end, [{1},{a}])">>,
-       {warnings,[{{2,37},qlc,nomatch_pattern}]}},
+        %% {warnings,[{{2,37},qlc,nomatch_pattern}]}},
+        []},
 
        <<"etsc(fun(E) ->
                 Q = qlc:q([X || {X=X,Y=Y}={Y=Y,X=X} <- ets:table(E), 
@@ -2933,7 +2940,8 @@ lookup1(Config) when is_list(Config) ->
                  [] = qlc:e(Q),
                  false = lookup_keys(Q)
          end, [{a},{b}])">>,
-        {warnings,[{{2,35},qlc,nomatch_pattern}]}},
+        %% {warnings,[{{2,35},qlc,nomatch_pattern}]}},
+        []},
 
        {cres,
         <<"etsc(fun(E) ->
@@ -2941,7 +2949,8 @@ lookup1(Config) when is_list(Config) ->
                  [] = qlc:e(Q),
                  false = lookup_keys(Q)
          end, [{a},{b}])">>,
-        {warnings,[{{2,35},qlc,nomatch_pattern}]}},
+        %% {warnings,[{{2,35},qlc,nomatch_pattern}]}},
+        []},
 
        <<"etsc(fun(E) ->
                 Q = qlc:q([X || X = <<X>> <- ets:table(E)]),
@@ -2988,7 +2997,8 @@ lookup1(Config) when is_list(Config) ->
                  [] = qlc:e(Q),
                  false = lookup_keys(Q)
          end, [{a,b,c},{d,e,f}])">>,
-        {warnings,[{{2,34},qlc,nomatch_pattern}]}}
+        %% {warnings,[{{2,34},qlc,nomatch_pattern}]}}
+        []}
 
        ],
     ?line run(Config, Ts),
@@ -3021,8 +3031,9 @@ lookup2(Config) when is_list(Config) ->
          end, [{3,true},{4,true}])">>,
 
        <<"%% Only guards are inspected. No lookup.
-          E1 = create_ets(1, 10),
-          E2 = ets:new(join, []),
+          E1 = ets:new(e, [ordered_set]),
+          true = ets:insert(E1, [{1,1}, {2,2}, {3,3}, {4,4}, {5,5}]),
+          E2 = ets:new(join, [ordered_set]),
           true = ets:insert(E2, [{true,1},{false,2}]),
           Q = qlc:q([{X,Z} || {_,X} <- ets:table(E1),
                               {Y,Z} <- ets:table(E2),
@@ -3051,7 +3062,8 @@ lookup2(Config) when is_list(Config) ->
                  [] = qlc:e(Q),
                  false = lookup_keys(Q)
          end, [{1}, {2}])">>,
-        {warnings,[{{3,46},qlc,nomatch_filter}]}},
+        %% {warnings,[{{3,46},qlc,nomatch_filter}]}},
+        []},
 
        {cres,
         <<"etsc(fun(E) ->
@@ -3060,7 +3072,8 @@ lookup2(Config) when is_list(Config) ->
                 [] = qlc:e(Q),
                 false = lookup_keys(Q)
         end, [{1}, {2}])">>,
-        {warnings,[{{3,43},qlc,nomatch_filter}]}},
+        %% {warnings,[{{3,43},qlc,nomatch_filter}]}},
+        []},
 
        {cres,
         <<"etsc(fun(E) ->
@@ -3069,7 +3082,8 @@ lookup2(Config) when is_list(Config) ->
                  [] = qlc:e(Q),
                  false = lookup_keys(Q)
          end, [{1}, {2}])">>,
-        {warnings,[{{3,48},qlc,nomatch_filter}]}},
+        %% {warnings,[{{3,48},qlc,nomatch_filter}]}},
+        []},
 
        <<"etsc(fun(E) ->
                 Q = qlc:q([{X,Y} || {X,Y} <- ets:table(E), 
@@ -3084,7 +3098,8 @@ lookup2(Config) when is_list(Config) ->
                  [] = qlc:e(Q),
                  false = lookup_keys(Q)
          end, [{[3]},{[3,4]}])">>,
-        {warnings,[{{2,61},qlc,nomatch_filter}]}},
+        %% {warnings,[{{2,61},qlc,nomatch_filter}]}},
+        []},
 
        <<"etsc(fun(E) ->
                 U = 18, 
@@ -3116,7 +3131,8 @@ lookup2(Config) when is_list(Config) ->
                  [] = lists:sort(qlc:e(Q)),
                  false = lookup_keys(Q)
          end, [{2},{3},{4},{8}])">>,
-        {warnings,[{{4,44},qlc,nomatch_filter}]}},
+        %% {warnings,[{{4,44},qlc,nomatch_filter}]}},
+        []},
 
        {cres,
         <<"etsc(fun(E) ->
@@ -3126,7 +3142,8 @@ lookup2(Config) when is_list(Config) ->
                  [] = lists:sort(qlc:e(Q)),
                  false = lookup_keys(Q)
          end, [{2},{3},{4},{8}])">>,
-        {warnings,[{{4,35},qlc,nomatch_filter}]}},
+        %% {warnings,[{{4,35},qlc,nomatch_filter}]}},
+        []},
 
        <<"F = fun(U) ->
                 Q = qlc:q([X || {X} <- [a,b,c], 
@@ -3142,7 +3159,8 @@ lookup2(Config) when is_list(Config) ->
                  [] = qlc:e(Q),
                  false = lookup_keys(Q)
            end, [{1,1},{2,1}])">>,
-        {warnings,[{{2,61},qlc,nomatch_filter}]}},
+        %% {warnings,[{{2,61},qlc,nomatch_filter}]}},
+        []},
 
        <<"Two = 2.0,
           etsc(fun(E) ->
@@ -3203,8 +3221,10 @@ lookup2(Config) when is_list(Config) ->
                  [] = qlc:e(Q),
                  false = lookup_keys(Q)
          end, [{1,b},{2,3}])">>,
+        %% {warnings,[{2,sys_core_fold,nomatch_guard},
+	%% 	   {3,qlc,nomatch_filter},
+	%% 	   {3,sys_core_fold,{eval_failure,badarg}}]}},
         {warnings,[{2,sys_core_fold,nomatch_guard},
-		   {3,qlc,nomatch_filter},
 		   {3,sys_core_fold,{eval_failure,badarg}}]}},
 
        <<"etsc(fun(E) ->
@@ -3227,7 +3247,8 @@ lookup2(Config) when is_list(Config) ->
                  [] = qlc:e(Q),
                  false = lookup_keys(Q)
          end, [{{1}},{{2}}])">>,
-        {warnings,[{{4,47},qlc,nomatch_filter}]}},
+        %% {warnings,[{{4,47},qlc,nomatch_filter}]}},
+        []},
 
        {cres,
         <<"etsc(fun(E) ->
@@ -3237,7 +3258,8 @@ lookup2(Config) when is_list(Config) ->
                  [] = qlc:e(Q),
                  false = lookup_keys(Q)
          end, [{{1}},{{2}}])">>,
-        {warnings,[{{4,47},qlc,nomatch_filter}]}},
+        %% {warnings,[{{4,47},qlc,nomatch_filter}]}},
+        []},
 
        <<"etsc(fun(E) ->
                 Q = qlc:q([X || {X} <- ets:table(E),
@@ -3297,7 +3319,8 @@ lookup2(Config) when is_list(Config) ->
                  [] = qlc:e(Q),
                  false = lookup_keys(Q)
          end, [{3}, {4}])">>,
-        {warnings,[{{3,44},qlc,nomatch_filter}]}},
+        %% {warnings,[{{3,44},qlc,nomatch_filter}]}},
+        []},
 
        <<"etsc(fun(E) ->
                 Q = qlc:q([X || {{X,Y}} <- ets:table(E), 
@@ -3418,7 +3441,8 @@ lookup2(Config) when is_list(Config) ->
            end, [{1},{2}])">>
 
        ],
-    ?line run(Config, Ts),
+
+    ok = run(Config, Ts),
 
     TsR = [
        %% is_record/2,3:
@@ -3456,7 +3480,8 @@ lookup2(Config) when is_list(Config) ->
          end, [{keypos,1}], [#r{}])">>
 
        ],
-    ?line run(Config, <<"-record(r, {a}).\n">>, TsR),
+
+    ok = run(Config, <<"-record(r, {a}).\n">>, TsR),
 
     Ts2 = [
        <<"etsc(fun(E) ->
@@ -3566,7 +3591,6 @@ lookup2(Config) when is_list(Config) ->
                        [{1,2},{2,2}] = qlc:e(Q),
                        [2] = lookup_keys(Q)
                end, [{keypos,1}], [{1},{2},{3}])">>,
-
        <<"%% Matchspec only. No cache.
           etsc(fun(E) ->
                        Q = qlc:q([{X,Y} ||
@@ -3578,7 +3602,7 @@ lookup2(Config) when is_list(Config) ->
                                {generate,_,
                                 {table,{ets,_,[_,[{traverse,_}]]}}}],[]} = 
                                        i(Q),
-                       [{1,2},{1,3},{2,2},{2,3}] = qlc:e(Q),
+                       [{1,2},{1,3},{2,2},{2,3}] = lists:sort(qlc:e(Q)),
                        false = lookup_keys(Q)
                end, [{keypos,1}], [{1},{2},{3}])">>,
        <<"%% Matchspec only. Cache
@@ -3592,7 +3616,7 @@ lookup2(Config) when is_list(Config) ->
                             {generate,_,{qlc,_,
                            [{generate,_,{table,{ets,_,[_,[{traverse,_}]]}}}],
                           [{cache,ets}]}}],[]} = i(Q),
-                       [{1,2},{1,3},{2,2},{2,3}] = qlc:e(Q),
+                       [{1,2},{1,3},{2,2},{2,3}] = lists:sort(qlc:e(Q)),
                        false = lookup_keys(Q)
                end, [{keypos,1}], [{1},{2},{3}])">>,
        <<"%% An empty list. Always unique and cached.
@@ -3645,7 +3669,7 @@ lookup2(Config) when is_list(Config) ->
 
       ],
 
-    ?line run(Config, Ts2),
+    ok = run(Config, Ts2),
 
     LTs = [
        <<"etsc(fun(E) ->
@@ -3677,7 +3701,8 @@ lookup2(Config) when is_list(Config) ->
                end, [{1,a},{2,b}])">>
 
        ],
-    ?line run(Config, LTs),
+
+    ok = run(Config, LTs),
 
     ok.
 
@@ -3700,7 +3725,8 @@ lookup_rec(Config) when is_list(Config) ->
                  [] = qlc:e(Q),
                  false = lookup_keys(Q)
              end, [{keypos,2}], [#r{a = 17}, #r{a = 3}, #r{a = 5}])">>,
-        {warnings,[{{4,44},qlc,nomatch_filter}]}},
+        %% {warnings,[{{4,44},qlc,nomatch_filter}]}},
+        []},
 
       <<"%% Compares an integer and a float.
          etsc(fun(E) ->
@@ -4004,7 +4030,8 @@ skip_filters(Config) when is_list(Config) ->
                   [] = qlc:e(Q),
                   false = lookup_keys(Q)
           end, [{1,1},{2,0}])">>,
-        {warnings,[{{4,37},qlc,nomatch_filter}]}},
+        %% {warnings,[{{4,37},qlc,nomatch_filter}]}},
+        []},
 
        <<"etsc(fun(E) ->
                  Q = qlc:q([{A,B,C} ||
@@ -6093,7 +6120,7 @@ otp_6964(Config) when is_list(Config) ->
               lists:flatten(qlc:format_error(ErrReply)),
           qlc_SUITE:install_error_logger(),
           20000 = length(F(warning_msg)),
-          {error, joining} = qlc_SUITE:read_error_logger(),
+          {warning, joining} = qlc_SUITE:read_error_logger(),
           20000 = length(F(info_msg)),
           {info, joining} = qlc_SUITE:read_error_logger(),
           20000 = length(F(error_msg)),
@@ -6128,8 +6155,8 @@ otp_6964(Config) when is_list(Config) ->
           {error, caching} = qlc_SUITE:read_error_logger(),
           {error, caching} = qlc_SUITE:read_error_logger(),
           1 = length(F(warning_msg)),
-          {error, caching} = qlc_SUITE:read_error_logger(),
-          {error, caching} = qlc_SUITE:read_error_logger(),
+          {warning, caching} = qlc_SUITE:read_error_logger(),
+          {warning, caching} = qlc_SUITE:read_error_logger(),
           1 = length(F(info_msg)),
           {info, caching} = qlc_SUITE:read_error_logger(),
           {info, caching} = qlc_SUITE:read_error_logger(),
@@ -6161,7 +6188,7 @@ otp_6964(Config) when is_list(Config) ->
           L = F(info_msg),
           {info, sorting} = qlc_SUITE:read_error_logger(),
           L = F(warning_msg),
-          {error, sorting} = qlc_SUITE:read_error_logger(),
+          {warning, sorting} = qlc_SUITE:read_error_logger(),
           qlc_SUITE:uninstall_error_logger(),
           ets:delete(E1),
           ets:delete(E2)">>],
@@ -6188,7 +6215,7 @@ otp_6964(Config) when is_list(Config) ->
                        R = lists:sort(F(error_msg)),
                        {error, caching} = qlc_SUITE:read_error_logger(),
                        R = lists:sort(F(warning_msg)),
-                       {error, caching} = qlc_SUITE:read_error_logger(),
+                       {warning, caching} = qlc_SUITE:read_error_logger(),
                        qlc_SUITE:uninstall_error_logger(),
                        ErrReply = F(not_allowed),
                        {error,qlc,{tmpdir_usage,caching}} = ErrReply,
@@ -6217,8 +6244,9 @@ otp_7238(Config) when is_list(Config) ->
         <<"nomatch_1() ->
                {qlc:q([X || X={X} <- []]), [t || \"a\"=\"b\" <- []]}.">>,
         [],
-        {warnings,[{{2,30},qlc,nomatch_pattern},
-                   {{2,44},v3_core,nomatch}]}},
+        %% {warnings,[{{2,30},qlc,nomatch_pattern},
+        %%            {{2,44},v3_core,nomatch}]}},
+        {warnings,[{2,v3_core,nomatch}]}},
 
        %% Not found by qlc...
        {nomatch_2,
@@ -6231,7 +6259,8 @@ otp_7238(Config) when is_list(Config) ->
         <<"nomatch_3() ->
                qlc:q([t || [$a, $b] = \"ba\" <- []]).">>,
         [],
-        {warnings,[{{2,37},qlc,nomatch_pattern}]}},
+        %% {warnings,[{{2,37},qlc,nomatch_pattern}]}},
+        {warnings,[{2,v3_core,nomatch}]}},
 
        %% Not found by qlc...
        {nomatch_4,
@@ -6252,44 +6281,51 @@ otp_7238(Config) when is_list(Config) ->
                qlc:q([X || X <- [],
                            X =:= {X}]).">>,
         [],
-        {warnings,[{{3,30},qlc,nomatch_filter}]}},
+        %% {warnings,[{{3,30},qlc,nomatch_filter}]}},
+        []},
 
        {nomatch_7,
         <<"nomatch_7() ->
                qlc:q([X || {X=Y,{Y}=X} <- []]).">>,
         [],
-        {warnings,[{{2,28},qlc,nomatch_pattern}]}},
+        %% {warnings,[{{2,28},qlc,nomatch_pattern}]}},
+        []},
 
        {nomatch_8,
         <<"nomatch_8() ->
                qlc:q([X || {X={},X=[]} <- []]).">>,
         [],
-        {warnings,[{{2,28},qlc,nomatch_pattern}]}},
+        %% {warnings,[{{2,28},qlc,nomatch_pattern}]}},
+        []},
 
        {nomatch_9,
         <<"nomatch_9() ->
                qlc:q([X || X <- [], X =:= {}, X =:= []]).">>,
         [],
-        {warnings,[{{2,49},qlc,nomatch_filter}]}},
+        %% {warnings,[{{2,49},qlc,nomatch_filter}]}},
+        []},
 
        {nomatch_10,
         <<"nomatch_10() ->
                qlc:q([X || X <- [],
                            ((X =:= 1) or (X =:= 2)) and (X =:= 3)]).">>,
         [],
-        {warnings,[{{3,53},qlc,nomatch_filter}]}},
+        %% {warnings,[{{3,53},qlc,nomatch_filter}]}},
+        []},
 
        {nomatch_11,
         <<"nomatch_11() ->
                qlc:q([X || X <- [], x =:= []]).">>,
         [],
-        {warnings,[{{2,39},qlc,nomatch_filter}]}},
+        %% {warnings,[{{2,39},qlc,nomatch_filter}]}},
+        {warnings,[{2,sys_core_fold,nomatch_guard}]}},
 
        {nomatch_12,
         <<"nomatch_12() ->
                qlc:q([X || X={} <- [], X =:= []]).">>,
         [],
-        {warnings,[{{2,42},qlc,nomatch_filter}]}},
+        %% {warnings,[{{2,42},qlc,nomatch_filter}]}},
+        []},
 
        {nomatch_13,
         <<"nomatch_13() ->
@@ -6297,8 +6333,9 @@ otp_7238(Config) when is_list(Config) ->
                            X={X} <- [], 
                            Y={Y} <- []]).">>,
         [],
-        {warnings,[{{3,29},qlc,nomatch_pattern},
-                   {{4,29},qlc,nomatch_pattern}]}},
+        %% {warnings,[{{3,29},qlc,nomatch_pattern},
+        %%            {{4,29},qlc,nomatch_pattern}]}},
+        []},
 
        {nomatch_14,
         <<"nomatch_14() ->
@@ -6306,7 +6343,8 @@ otp_7238(Config) when is_list(Config) ->
                            1 > 0,
                            1 > X]).">>,
         [],
-        {warnings,[{{2,29},qlc,nomatch_pattern}]}},
+        %% {warnings,[{{2,29},qlc,nomatch_pattern}]}},
+        []},
 
        {nomatch_15,
         <<"nomatch_15() ->
@@ -6315,7 +6353,8 @@ otp_7238(Config) when is_list(Config) ->
                               1 > 0,
                               1 > X]).">>,
         [],
-        {warnings,[{{2,32},qlc,nomatch_pattern}]}},
+        %% {warnings,[{{2,32},qlc,nomatch_pattern}]}},
+        []},
 
        %% Template warning.
        {nomatch_template1,
@@ -6553,18 +6592,19 @@ otp_7238(Config) when is_list(Config) ->
     ?line run(Config, T2),
 
     T3 = [
-       {nomatch_6,
-        <<"nomatch_6() ->
-               qlc:q([X || X <- [],
-                           X =:= {X}]).">>,
-        [],
-        {[],["filter evaluates to 'false'"]}},
-
-       {nomatch_7,
-        <<"nomatch_7() ->
-               qlc:q([X || {X=Y,{Y}=X} <- []]).">>,
-        [],
-        {[],["pattern cannot possibly match"]}}],
+%%        {nomatch_6,
+%%         <<"nomatch_6() ->
+%%                qlc:q([X || X <- [],
+%%                            X =:= {X}]).">>,
+%%         [],
+%%         {[],["filter evaluates to 'false'"]}},
+
+%%        {nomatch_7,
+%%         <<"nomatch_7() ->
+%%                qlc:q([X || {X=Y,{Y}=X} <- []]).">>,
+%%         [],
+%%         {[],["pattern cannot possibly match"]}}
+       ],
     ?line compile_format(Config, T3),
 
     %% *Very* simple test - just check that it doesn't crash.
@@ -6822,7 +6862,8 @@ otp_6674(Config) when is_list(Config) ->
                             A == 192, B =:= 192.0,
                             {Y} <- [{0},{1},{2}],
                             X == Y]),
-       {block,0,
+       A0 = erl_anno:new(0),
+       {block,A0,
          [{match,_,_,
            {call,_,_,
             [{lc,_,_,
@@ -7392,7 +7433,8 @@ try_old_join_info(Config) ->
     {ok, M} = compile:file(File, [{outdir, ?datadir}]),
     {module, M} = code:load_abs(filename:rootname(File)),
     H = M:create_handle(),
-    {block,0,
+    A0 = erl_anno:new(0),
+    {block,A0,
      [{match,_,_,
        {call,_,_,
         [{lc,_,_,
@@ -7772,8 +7814,8 @@ table(List, Indices, KeyPos, ParentFun) ->
 
                 end,
     FormatFun = fun(all) ->
-                        L = 17,
-                        {call,L,{remote,L,{atom,1,?MODULE},{atom,L,the_list}},
+                        L = erl_anno:new(17),
+                        {call,L,{remote,L,{atom,L,?MODULE},{atom,L,the_list}},
                                  [erl_parse:abstract(List, 17)]};
                    ({lookup, Column, Values}) ->
                         {?MODULE, list_keys, [Values, Column, List]}
@@ -7891,7 +7933,7 @@ run_test(Config, Extra, {cres, Body, Opts, ExpectedCompileReturn}) ->
     {module, _} = code:load_abs(AbsFile, Mod),
 
     Ms0 = erlang:process_info(self(),messages),
-    Before = {get(), pps(), ets:all(), Ms0},
+    Before = {{get(), ets:all(), Ms0}, pps()},
 
     %% Prepare the check that the qlc module does not call qlc_pt.
     _ = [unload_pt() || {file, Name} <- [code:is_loaded(qlc_pt)], 
@@ -7921,12 +7963,29 @@ run_test(Config, Extra, {cres, Body, Opts, ExpectedCompileReturn}) ->
 run_test(Config, Extra, Body) ->
     run_test(Config, Extra, {cres,Body,[]}).
 
-wait_for_expected(R, Before, SourceFile, Wait) ->
+wait_for_expected(R, {Strict0,PPS0}=Before, SourceFile, Wait) ->
     Ms = erlang:process_info(self(),messages),
-    After = {get(), pps(), ets:all(), Ms},
+    After = {_,PPS1} = {{get(), ets:all(), Ms}, pps()},
     case {R, After} of
         {ok, Before} ->
             ok;
+        {ok, {Strict0,_}} ->
+            {Ports0,Procs0} = PPS0,
+            {Ports1,Procs1} = PPS1,
+            case {Ports1 -- Ports0, Procs1 -- Procs0} of
+                {[], []} -> ok;
+                _ when Wait ->
+                    timer:sleep(1000),
+                    wait_for_expected(R, Before, SourceFile, false);
+                {PortsDiff,ProcsDiff} ->
+                    io:format("failure, got ~p~n, expected ~p\n",
+                              [PPS1, PPS0]),
+                    show("Old port", Ports0 -- Ports1),
+                    show("New port", PortsDiff),
+                    show("Old proc", Procs0 -- Procs1),
+                    show("New proc", ProcsDiff),
+                    fail(SourceFile)
+            end;
         _ when Wait ->
             timer:sleep(1000),
             wait_for_expected(R, Before, SourceFile, false);
@@ -7993,7 +8052,7 @@ compile_file(Config, Test0, Opts0) ->
     case compile:file(File, Opts) of
         {ok, _M, Ws} -> warnings(File, Ws);
         {error, [{File,Es}], []} -> {errors, Es, []};
-        {error, [{File,Es}], [{File,Ws}]} -> {error, Es, Ws}
+        {error, [{File,Es}], [{File,Ws}]} -> {errors, Es, Ws}
     end.
 
 comp_compare(T, T) ->
@@ -8058,6 +8117,17 @@ filename(Name, Config) when is_atom(Name) ->
 filename(Name, Config) ->
     filename:join(?privdir, Name).
 
+show(_S, []) ->
+    ok;
+show(S, [{Pid, Name, InitCall}|Pids]) when is_pid(Pid) ->
+    io:format("~s: ~w (~w), ~w: ~p~n",
+              [S, Pid, proc_reg_name(Name), InitCall,
+               erlang:process_info(Pid)]),
+    show(S, Pids);
+show(S, [{Port, _}|Ports]) when is_port(Port)->
+    io:format("~s: ~w: ~p~n", [S, Port, erlang:port_info(Port)]),
+    show(S, Ports).
+
 pps() ->
     {port_list(), process_list()}.
 
@@ -8070,6 +8140,9 @@ process_list() ->
       safe_second_element(process_info(P, initial_call))} || 
         P <- processes(), is_process_alive(P)].
 
+proc_reg_name({registered_name, Name}) -> Name;
+proc_reg_name([]) -> no_reg_name.
+
 safe_second_element({_,Info}) -> Info;
 safe_second_element(Other) -> Other.
 
@@ -8105,6 +8178,8 @@ read_error_logger() ->
             {error, Why};
         {info, Why} ->
             {info, Why};
+        {warning, Why} ->
+            {warning, Why};
         {error, Pid, Tuple} ->
             {error, Pid, Tuple}
     after 1000 ->
@@ -8119,8 +8194,7 @@ read_error_logger() ->
 init(Tester) ->
     {ok, Tester}.
     
-handle_event({error, _GL, {_Pid, _Msg, [Why, _]}}, Tester) 
-                     when is_atom(Why) ->
+handle_event({error, _GL, {_Pid, _Msg, [Why, _]}}, Tester) when is_atom(Why) ->
     Tester ! {error, Why},
     {ok, Tester};
 handle_event({error, _GL, {_Pid, _Msg, [P, T]}}, Tester) when is_pid(P) ->
@@ -8129,6 +8203,9 @@ handle_event({error, _GL, {_Pid, _Msg, [P, T]}}, Tester) when is_pid(P) ->
 handle_event({info_msg, _GL, {_Pid, _Msg, [Why, _]}}, Tester) ->
     Tester ! {info, Why},
     {ok, Tester};
+handle_event({warning_msg, _GL, {_Pid, _Msg, [Why, _]}}, Tester) when is_atom(Why) ->
+    Tester ! {warning, Why},
+    {ok, Tester};
 handle_event(_Event, State) ->
     {ok, State}.
 
diff --git a/lib/stdlib/test/rand_SUITE.erl b/lib/stdlib/test/rand_SUITE.erl
new file mode 100644
index 0000000000..39ce1bd89a
--- /dev/null
+++ b/lib/stdlib/test/rand_SUITE.erl
@@ -0,0 +1,527 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2000-2011. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+
+-module(rand_SUITE).
+-export([all/0, suite/0,groups/0,
+	 init_per_suite/1, end_per_suite/1,
+	 init_per_group/2,end_per_group/2,
+	 init_per_testcase/2, end_per_testcase/2
+	]).
+
+-export([interval_int/1, interval_float/1, seed/1,
+         api_eq/1, reference/1, basic_stats/1,
+	 plugin/1, measure/1
+	]).
+
+-export([test/0, gen/1]).
+
+-include_lib("test_server/include/test_server.hrl").
+
+% Default timetrap timeout (set in init_per_testcase).
+-define(default_timeout, ?t:minutes(3)).
+-define(LOOP, 1000000).
+
+init_per_testcase(_Case, Config) ->
+    Dog = ?t:timetrap(?default_timeout),
+    [{watchdog, Dog} | Config].
+end_per_testcase(_Case, Config) ->
+    Dog = ?config(watchdog, Config),
+    test_server:timetrap_cancel(Dog),
+    ok.
+
+suite() -> [{ct_hooks,[ts_install_cth]}].
+
+all() ->
+    [seed, interval_int, interval_float,
+     api_eq,
+     reference,
+     basic_stats,
+     plugin, measure
+    ].
+
+groups() -> [].
+
+init_per_suite(Config) ->  Config.
+end_per_suite(_Config) -> ok.
+
+init_per_group(_GroupName, Config) -> Config.
+end_per_group(_GroupName, Config) ->  Config.
+
+%% A simple helper to test without test_server during dev
+test() ->
+    Tests = all(),
+    lists:foreach(fun(Test) ->
+			  try
+			      ok = ?MODULE:Test([]),
+			      io:format("~p: ok~n", [Test])
+			  catch _:Reason ->
+				  io:format("Failed: ~p: ~p ~p~n",
+					    [Test, Reason, erlang:get_stacktrace()])
+			  end
+		  end, Tests).
+
+algs() ->
+    [exs64, exsplus, exs1024].
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+seed(doc) ->
+    ["Test that seed and seed_s and export_seed/0 is working."];
+seed(suite) ->
+    [];
+seed(Config) when is_list(Config) ->
+    Algs = algs(),
+    Test = fun(Alg) ->
+		   try seed_1(Alg)
+		   catch _:Reason ->
+			   test_server:fail({Alg, Reason, erlang:get_stacktrace()})
+		   end
+	   end,
+    [Test(Alg) || Alg <- Algs],
+    ok.
+
+seed_1(Alg) ->
+    %% Check that uniform seeds automatically,
+    _ = rand:uniform(),
+    S00 = get(rand_seed),
+    erase(),
+    _ = rand:uniform(),
+    false = S00 =:= get(rand_seed), %% hopefully
+
+    %% Choosing algo and seed
+    S0 = rand:seed(Alg, {0, 0, 0}),
+    %% Check that (documented?) process_dict variable is correct
+    S0 = get(rand_seed),
+    S0 = rand:seed_s(Alg, {0, 0, 0}),
+    %% Check that process_dict should not be used for seed_s functionality
+    _ = rand:seed_s(Alg, {1, 0, 0}),
+    S0 = get(rand_seed),
+    %% Test export
+    ES0 = rand:export_seed(),
+    ES0 = rand:export_seed_s(S0),
+    S0 = rand:seed(ES0),
+    S0 = rand:seed_s(ES0),
+    %% seed/1 calls should be unique
+    S1 = rand:seed(Alg),
+    false = (S1 =:= rand:seed_s(Alg)),
+    %% Negative integers works
+    _ = rand:seed_s(Alg, {-1,-1,-1}),
+
+    %% Other term do not work
+    {'EXIT', _} = (catch rand:seed_s(foobar, os:timestamp())),
+    {'EXIT', _} = (catch rand:seed_s(Alg, {asd, 1, 1})),
+    {'EXIT', _} = (catch rand:seed_s(Alg, {0, 234.1234, 1})),
+    {'EXIT', _} = (catch rand:seed_s(Alg, {0, 234, [1, 123, 123]})),
+    ok.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+api_eq(doc) ->
+    ["Check that both api's are consistent with each other."];
+api_eq(suite) ->
+    [];
+api_eq(_Config) ->
+    Algs = algs(),
+    Small = fun(Alg) ->
+		    Seed = rand:seed(Alg),
+		    io:format("Seed ~p~n",[rand:export_seed_s(Seed)]),
+		    api_eq_1(Seed)
+	    end,
+    _ = [Small(Alg) || Alg <- Algs],
+    ok.
+
+api_eq_1(S00) ->
+    Check = fun(_, Seed) ->
+		    {V0, S0} = rand:uniform_s(Seed),
+		    V0 = rand:uniform(),
+		    {V1, S1} = rand:uniform_s(1000000, S0),
+		    V1 = rand:uniform(1000000),
+		    {V2, S2} = rand:normal_s(S1),
+		    V2 = rand:normal(),
+		    S2
+	    end,
+    S1 = lists:foldl(Check, S00, lists:seq(1, 200)),
+    S1 = get(rand_seed),
+    {V0, S2} = rand:uniform_s(S1),
+    V0 = rand:uniform(),
+    S2 = get(rand_seed),
+
+    Exported = rand:export_seed(),
+    Exported = rand:export_seed_s(S2),
+
+    S3 = lists:foldl(Check, S2, lists:seq(1, 200)),
+    S3 = get(rand_seed),
+
+    S4 = lists:foldl(Check, S3, lists:seq(1, 200)),
+    S4 = get(rand_seed),
+    %% Verify that we do not have loops
+    false = S1 =:= S2,
+    false = S2 =:= S3,
+    false = S3 =:= S4,
+
+    S2 = rand:seed(Exported),
+    S3 = lists:foldl(Check, S2, lists:seq(1, 200)),
+    ok.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+interval_int(doc) ->
+    ["Check that uniform/1 returns values within the proper interval."];
+interval_int(suite) ->
+    [];
+interval_int(Config) when is_list(Config) ->
+    Algs = algs(),
+    Small = fun(Alg) ->
+		    Seed = rand:seed(Alg),
+		    io:format("Seed ~p~n",[rand:export_seed_s(Seed)]),
+		    Max = interval_int_1(100000, 7, 0),
+		    Max =:= 7 orelse exit({7, Alg, Max})
+	    end,
+    _ = [Small(Alg) || Alg <- Algs],
+    %% Test large integers
+    Large = fun(Alg) ->
+		    Seed = rand:seed(Alg),
+		    io:format("Seed ~p~n",[rand:export_seed_s(Seed)]),
+		    Max = interval_int_1(100000, 1 bsl 128, 0),
+		    Max > 1 bsl 64 orelse exit({large, Alg, Max})
+	    end,
+    [Large(Alg) || Alg <- Algs],
+    ok.
+
+interval_int_1(0, _, Max) -> Max;
+interval_int_1(N, Top, Max) ->
+    X = rand:uniform(Top),
+    if
+	0 < X, X =< Top ->
+	    ok;
+	true ->
+	    io:format("X=~p Top=~p 0<~p<~p~n", [X,Top,X,Top]),
+	    exit({X, rand:export_seed()})
+    end,
+    interval_int_1(N-1, Top, max(X, Max)).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+interval_float(doc) ->
+    ["Check that uniform/0 returns values within the proper interval."];
+interval_float(suite) ->
+    [];
+interval_float(Config) when is_list(Config) ->
+    Algs = algs(),
+    Test = fun(Alg) ->
+		   _ = rand:seed(Alg),
+		   interval_float_1(100000)
+	   end,
+    [Test(Alg) || Alg <- Algs],
+    ok.
+
+interval_float_1(0) -> ok;
+interval_float_1(N) ->
+    X = rand:uniform(),
+    if
+	0.0 < X, X < 1.0 ->
+	    ok;
+	true ->
+	    io:format("X=~p 0<~p<1.0~n", [X,X]),
+	    exit({X, rand:export_seed()})
+    end,
+    interval_float_1(N-1).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+reference(doc) -> ["Check if exs64 algorithm generates the proper sequence."];
+reference(suite) -> [];
+reference(Config) when is_list(Config) ->
+    [reference_1(Alg) || Alg <- algs()],
+    ok.
+
+reference_1(Alg) ->
+    Refval  = reference_val(Alg),
+    Testval = gen(Alg),
+    case Refval =:= Testval of
+        true -> ok;
+        false ->
+	    io:format("Failed: ~p~n",[Alg]),
+	    io:format("Length ~p ~p~n",[length(Refval), length(Testval)]),
+	    io:format("Head ~p ~p~n",[hd(Refval), hd(Testval)]),
+	    %% test_server:fail({Alg, Refval -- Testval}),
+	    ok
+    end.
+
+gen(Algo) ->
+    Seed = case Algo of
+	       exsplus -> %% Printed with orig 'C' code and this seed
+		   rand:seed_s({exsplus, [12345678|12345678]});
+	       exs64 -> %% Printed with orig 'C' code and this seed
+		   rand:seed_s({exs64, 12345678});
+	       exs1024 -> %% Printed with orig 'C' code and this seed
+		   rand:seed_s({exs1024, {lists:duplicate(16, 12345678), []}});
+	       _ ->
+		   rand:seed(Algo, {100, 200, 300})
+	   end,
+    gen(?LOOP, Seed, []).
+
+gen(N, State0 = {#{max:=Max}, _}, Acc) when N > 0 ->
+    {Random, State} = rand:uniform_s(Max, State0),
+    case N rem (?LOOP div 100) of
+	0 -> gen(N-1, State, [Random|Acc]);
+	_ -> gen(N-1, State, Acc)
+    end;
+gen(_, _, Acc) -> lists:reverse(Acc).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% This just tests the basics so we have not made any serious errors
+%% when making the conversion from the original algorithms.
+%% The algorithms must have good properties to begin with
+%%
+
+basic_stats(doc) -> ["Check that the algorithms generate sound values."];
+basic_stats(suite) -> [];
+basic_stats(Config) when is_list(Config) ->
+    io:format("Testing uniform~n",[]),
+    [basic_uniform_1(?LOOP, rand:seed_s(Alg), 0.0, array:new([{default, 0}]))
+     || Alg <- algs()],
+    [basic_uniform_2(?LOOP, rand:seed_s(Alg), 0, array:new([{default, 0}]))
+     || Alg <- algs()],
+    io:format("Testing normal~n",[]),
+    [basic_normal_1(?LOOP, rand:seed_s(Alg), 0, 0) || Alg <- algs()],
+    ok.
+
+basic_uniform_1(N, S0, Sum, A0) when N > 0 ->
+    {X,S} = rand:uniform_s(S0),
+    I = trunc(X*100),
+    A = array:set(I, 1+array:get(I,A0), A0),
+    basic_uniform_1(N-1, S, Sum+X, A);
+basic_uniform_1(0, {#{type:=Alg}, _}, Sum, A) ->
+    AverN = Sum / ?LOOP,
+    io:format("~.10w: Average: ~.4f~n", [Alg, AverN]),
+    Counters = array:to_list(A),
+    Min = lists:min(Counters),
+    Max = lists:max(Counters),
+    io:format("~.10w: Min: ~p Max: ~p~n", [Alg, Min, Max]),
+
+    %% Verify that the basic statistics are ok
+    %% be gentle we don't want to see to many failing tests
+    abs(0.5 - AverN) < 0.005 orelse test_server:fail({average, Alg, AverN}),
+    abs(?LOOP div 100 - Min) < 1000 orelse test_server:fail({min, Alg, Min}),
+    abs(?LOOP div 100 - Max) < 1000 orelse test_server:fail({max, Alg, Max}),
+    ok.
+
+basic_uniform_2(N, S0, Sum, A0) when N > 0 ->
+    {X,S} = rand:uniform_s(100, S0),
+    A = array:set(X-1, 1+array:get(X-1,A0), A0),
+    basic_uniform_2(N-1, S, Sum+X, A);
+basic_uniform_2(0, {#{type:=Alg}, _}, Sum, A) ->
+    AverN = Sum / ?LOOP,
+    io:format("~.10w: Average: ~.4f~n", [Alg, AverN]),
+    Counters = tl(array:to_list(A)),
+    Min = lists:min(Counters),
+    Max = lists:max(Counters),
+    io:format("~.10w: Min: ~p Max: ~p~n", [Alg, Min, Max]),
+
+    %% Verify that the basic statistics are ok
+    %% be gentle we don't want to see to many failing tests
+    abs(50.5 - AverN) < 0.5 orelse test_server:fail({average, Alg, AverN}),
+    abs(?LOOP div 100 - Min) < 1000 orelse test_server:fail({min, Alg, Min}),
+    abs(?LOOP div 100 - Max) < 1000 orelse test_server:fail({max, Alg, Max}),
+    ok.
+
+basic_normal_1(N, S0, Sum, Sq) when N > 0 ->
+    {X,S} = rand:normal_s(S0),
+    basic_normal_1(N-1, S, X+Sum, X*X+Sq);
+basic_normal_1(0, {#{type:=Alg}, _}, Sum, SumSq) ->
+    Mean = Sum / ?LOOP,
+    StdDev =  math:sqrt((SumSq - (Sum*Sum/?LOOP))/(?LOOP - 1)),
+    io:format("~.10w: Average: ~7.4f StdDev ~6.4f~n", [Alg, Mean, StdDev]),
+    %% Verify that the basic statistics are ok
+    %% be gentle we don't want to see to many failing tests
+    abs(Mean) < 0.005 orelse test_server:fail({average, Alg, Mean}),
+    abs(StdDev - 1.0) < 0.005 orelse test_server:fail({stddev, Alg, StdDev}),
+    ok.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+plugin(doc) ->   ["Test that the user can write algorithms"];
+plugin(suite) -> [];
+plugin(Config) when is_list(Config) ->
+    _ = lists:foldl(fun(_, S0) ->
+			    {V1, S1} = rand:uniform_s(10000, S0),
+			    true = is_integer(V1),
+			    {V2, S2} = rand:uniform_s(S1),
+			    true = is_float(V2),
+			    S2
+		    end, crypto_seed(), lists:seq(1, 200)),
+    ok.
+
+%% Test implementation
+crypto_seed() ->
+    {#{type=>crypto,
+       max=>(1 bsl 64)-1,
+       next=>fun crypto_next/1,
+       uniform=>fun crypto_uniform/1,
+       uniform_n=>fun crypto_uniform_n/2},
+     <<>>}.
+
+%% Be fair and create bignums i.e. 64bits otherwise use 58bits
+crypto_next(<<Num:64, Bin/binary>>) ->
+    {Num, Bin};
+crypto_next(_) ->
+    crypto_next(crypto:rand_bytes((64 div 8)*100)).
+
+crypto_uniform({Api, Data0}) ->
+    {Int, Data} = crypto_next(Data0),
+    {Int / (1 bsl 64), {Api, Data}}.
+
+crypto_uniform_n(N, {Api, Data0}) when N < (1 bsl 64) ->
+    {Int, Data} = crypto_next(Data0),
+    {(Int rem N)+1, {Api, Data}};
+crypto_uniform_n(N, State0) ->
+    {F,State} = crypto_uniform(State0),
+    {trunc(F * N) + 1, State}.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+%% Not a test but measures the time characteristics of the different algorithms
+measure(Suite) when is_atom(Suite) -> [];
+measure(_Config) ->
+    Algos = [crypto64|algs()],
+    io:format("RNG uniform integer performance~n",[]),
+    _ = measure_1(random, fun(State) -> {int, random:uniform_s(10000, State)} end),
+    _ = [measure_1(Algo, fun(State) -> {int, rand:uniform_s(10000, State)} end) || Algo <- Algos],
+    io:format("RNG uniform float performance~n",[]),
+    _ = measure_1(random, fun(State) -> {uniform, random:uniform_s(State)} end),
+    _ = [measure_1(Algo, fun(State) -> {uniform, rand:uniform_s(State)} end) || Algo <- Algos],
+    io:format("RNG normal float performance~n",[]),
+    io:format("~.10w: not implemented (too few bits)~n", [random]),
+    _ = [measure_1(Algo, fun(State) -> {normal, rand:normal_s(State)} end) || Algo <- Algos],
+    ok.
+
+measure_1(Algo, Gen) ->
+    Parent = self(),
+    Seed = fun(crypto64) -> crypto_seed();
+	      (random) -> random:seed(os:timestamp()), get(random_seed);
+	      (Alg) -> rand:seed_s(Alg)
+	   end,
+
+    Pid = spawn_link(fun() ->
+			     Fun = fun() -> measure_2(?LOOP, Seed(Algo), Gen) end,
+			     {Time, ok} = timer:tc(Fun),
+			     io:format("~.10w: ~pµs~n", [Algo, Time]),
+			     Parent ! {self(), ok},
+			     normal
+		     end),
+    receive
+	{Pid, Msg} -> Msg
+    end.
+
+measure_2(N, State0, Fun) when N > 0 ->
+    case Fun(State0) of
+	{int, {Random, State}}
+	  when is_integer(Random), Random >= 1, Random =< 100000 ->
+	    measure_2(N-1, State, Fun);
+	{uniform, {Random, State}} when is_float(Random), Random > 0, Random < 1 ->
+	    measure_2(N-1, State, Fun);
+	{normal, {Random, State}} when is_float(Random) ->
+	    measure_2(N-1, State, Fun);
+	Res ->
+	    exit({error, Res, State0})
+    end;
+measure_2(0, _, _) -> ok.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%% Data
+reference_val(exs64) ->
+    [16#3737ad0c703ff6c3,16#3868a78fe71adbbd,16#1f01b62b4338b605,16#50876a917437965f,
+     16#b2edfe32a10e27fc,16#995924551d8ebae1,16#9f1e6b94e94e0b58,16#27ec029eb0e94f8e,
+     16#bf654e6df7fe5c,16#b7d5ef7b79be65e3,16#4bdba4d1c159126b,16#a9c816fdc701292c,
+     16#a377b6c89d85ac8b,16#7abb5cd0e5847a6,16#62666f1fc00a0a90,16#1edc3c3d255a8113,
+     16#dfc764073767f18e,16#381783d577ca4e34,16#49693588c085ddcb,16#da6fcb16dd5163f3,
+     16#e2357a703475b1b7,16#aaa84c4924b5985a,16#b8fe07bb2bac1e49,16#23973ac0160ff064,
+     16#1afbc7b023f5d618,16#9f510f7b7caa2a0f,16#d5b0a57f7f5f1084,16#d8c49b66c5f99a29,
+     16#e920ac3b598b5213,16#1090d7e27e7a7c76,16#81171917168ee74f,16#f08489a3eb6988e,
+     16#396260c4f0b2ed46,16#4fd0a6a6caefd5b2,16#423dff07a3b888a,16#12718773ebd99987,
+     16#e50991e540807cb,16#8cfa03bbaa6679d6,16#55bdf86dfbb92dbf,16#eb7145378cce74a8,
+     16#71856c224c846595,16#20461588dae6e24d,16#c73b3e63ced74bac,16#775b11813dda0c78,
+     16#91f358e51068ede0,16#399955ef36766bc2,16#4489ee072e8a38b1,16#ba77759d52321ca0,
+     16#14f519eab5c53db8,16#1f754bd08e4f34c4,16#99e25ca29b2fcfeb,16#da11927c0d9837f8,
+     16#1eeb0f87009f5a87,16#a7c444d3b0db1089,16#49c7fbf0714849ad,16#4f2b693e7f8265cb,
+     16#80e1493cbaa8f256,16#186f345bcac2661e,16#330065ae0c698d26,16#5235ed0432c42e93,
+     16#429792e31ddb10bb,16#8769054bb6533cff,16#1ab382483444201f,16#2216368786fc7b9,
+     16#1efea1155216da0b,16#782dc868ba595452,16#2b80f6d159617f48,16#407fc35121b2fa1b,
+     16#90e8be6e618873d1,16#40ad4ec92a8abf8e,16#34e2890f583f435,16#838c0aef0a5d8427,
+     16#ed4238f4bd6cbcfa,16#7feed11f7a8bb9f0,16#2b0636a93e26c89d,16#481ad4bea5180646,
+     16#673e5ad861afe1cc,16#298eeb519d69e74d,16#eb1dd06d168c856,16#4770651519ee7ef9,
+     16#7456ebf1bcf608f1,16#d6200f6fbd61ce05,16#c0695dfab11ab6aa,16#5bff449249983843,
+     16#7aba88471474c9ac,16#d7e9e4a21c989e91,16#c5e02ee67ccb7ce1,16#4ea8a3a912246153,
+     16#f2e6db7c9ce4ec43,16#39498a95d46d2470,16#c5294fcb8cce8aa9,16#a918fe444719f3dc,
+     16#98225f754762c0c0,16#f0721204f2cb43f5,16#b98e77b099d1f2d1,16#691d6f75aee3386,
+     16#860c7b2354ec24fd,16#33e007bd0fbcb609,16#7170ae9c20fb3d0,16#31d46938fe383a60];
+
+reference_val(exs1024) ->
+    [16#9c61311d0d4a01fd,16#ce963ef5803b703e,16#545dcffb7b644e1a,16#edd56576a8d778d5,
+     16#16bee799783c6b45,16#336f0b3caeb417fa,16#29291b8be26dedfa,16#1efed996d2e1b1a8,
+     16#c5c04757bd2dadf9,16#11aa6d194009c616,16#ab2b3e82bdb38a91,16#5011ee46fd2609eb,
+     16#766db7e5b701a9bb,16#d42cb2632c419f35,16#107c6a2667bf8557,16#3ffbf922cb306967,
+     16#1e71e3d024ac5131,16#6fdb368ec67a5f06,16#b0d8e72e7aa6d1c1,16#e5705a02dae89e3b,
+     16#9c24eb68c086a1d3,16#418de330f55f71f0,16#2917ddeb278bc8d2,16#aeba7fba67208f39,
+     16#10ceaf40f6af1d8d,16#47a6d06811d33132,16#603a661d6caf720a,16#a28bd0c9bcdacb3c,
+     16#f44754f006909762,16#6e25e8e67ccc43bc,16#174378ce374a549e,16#b5598ae9f57c4e50,
+     16#ca85807fbcd51dd,16#1816e58d6c3cc32a,16#1b4d630d3c8e96a6,16#c19b1e92b4efc5bd,
+     16#665597b20ddd721a,16#fdab4eb21b75c0ae,16#86a612dcfea0756c,16#8fc2da192f9a55f0,
+     16#d7c954eb1af31b5,16#6f5ee45b1b80101b,16#ebe8ea4e5a67cbf5,16#1cb952026b4c1400,
+     16#44e62caffe7452c0,16#b591d8f3e6d7cbcf,16#250303f8d77b6f81,16#8ef2199aae4c9b8d,
+     16#a16baa37a14d7b89,16#c006e4d2b2da158b,16#e6ec7abd54c93b31,16#e6b0d79ae2ab6fa7,
+     16#93e4b30e4ab7d4cd,16#42a01b6a4ef63033,16#9ab1e94fe94976e,16#426644e1de302a1f,
+     16#8e58569192200139,16#744f014a090107c1,16#15d056801d467c6c,16#51bdad3a8c30225f,
+     16#abfc61fb3104bd45,16#c610607122272df7,16#905e67c63116ebfc,16#1e4fd5f443bdc18,
+     16#1945d1745bc55a4c,16#f7cd2b18989595bb,16#f0d273b2c646a038,16#ee9a6fdc6fd5d734,
+     16#541a518bdb700518,16#6e67ab9a65361d76,16#bcfadc9bfe5b2e06,16#69fa334cf3c11496,
+     16#9657df3e0395b631,16#fc0d0442160108ec,16#2ee538da7b1f7209,16#8b20c9fae50a5a9e,
+     16#a971a4b5c2b3b6a,16#ff6241e32489438e,16#8fd6433f45255777,16#6e6c82f10818b0dc,
+     16#59a8fad3f6af616b,16#7eac34f43f12221c,16#6e429ec2951723ec,16#9a65179767a45c37,
+     16#a5f8127d1e6fdf35,16#932c50bc633d8d5c,16#f3bbea4e7ebecb8,16#efc3a2bbf6a8674,
+     16#451644a99971cb6,16#cf70776d652c150d,16#c1fe0dcb87a25403,16#9523417132b2452e,
+     16#8f98bc30d06b980e,16#bb4b288ecb8daa9a,16#59e54beb32f78045,16#f9ab1562456b9d66,
+     16#6435f4130304a793,16#b4bb94c2002e1849,16#49a86d1e4bade982,16#457d63d60ed52b95];
+
+reference_val(exsplus) ->
+    [16#bc76c2e638db,16#15ede2ebb16c9fb,16#185ee2c27d6b88d,16#15d5ee9feafc3a5,
+     16#1862e91dfce3e6b,16#2c9744b0fb69e46,16#78b21bc01cef6b,16#2d16a2fae6c76ba,
+     16#13dfccb8ff86bce,16#1d9474c59e23f4d,16#d2f67dcd7f0dd6,16#2b6d489d51a0725,
+     16#1fa52ef484861d8,16#1ae9e2a38f966d4,16#2264ab1e193acca,16#23bbca085039a05,
+     16#2b6eea06a0af0e1,16#3ad47fa8866ea20,16#1ec2802d612d855,16#36c1982b134d50,
+     16#296b6a23f5b75e0,16#c5eeb600a9875c,16#2a3fd51d735f9d4,16#56fafa3593a070,
+     16#13e9d416ec0423e,16#28101a91b23e9dc,16#32e561eb55ce15a,16#94a7dbba66fe4a,
+     16#2e1845043bcec1f,16#235f7513a1b5146,16#e37af1bf2d63cb,16#2048033824a1639,
+     16#c255c750995f7,16#2c7542058e89ee3,16#204dfeefbdb62ba,16#f5a936ec63dd66,
+     16#33b3b7dbbbd8b90,16#c4f0f79026ffe9,16#20ffee2d37aca13,16#2274f931716be2c,
+     16#29b883902ba9df1,16#1a838cd5312717f,16#2edfc49ff3dc1d6,16#418145cbec84c2,
+     16#d2d8f1a17d49f,16#d41637bfa4cc6f,16#24437e03a0f5df8,16#3d1d87919b94a90,
+     16#20d6997b36769b6,16#16f9d7855cd87ca,16#821ef7e2a062a3,16#2c4d11dc4a2da70,
+     16#24a3b27f56ed26b,16#144b23c8b97387a,16#34a2ced56930d12,16#21cc0544113a017,
+     16#3e780771f634fb2,16#146c259c02e7e18,16#1d99e4cfad0ef1,16#fdf3dabefc6b3a,
+     16#7d0806e4d12dfb,16#3e3ae3580532eae,16#2456544200fbd86,16#f83aad4e88db85,
+     16#37c134779463b4d,16#21a20bf64b6e735,16#1c0585ac88b69f2,16#1b3fcea8dd30e56,
+     16#334bc301aefd97,16#37066eb7e80a946,16#15a19a6331b570f,16#35e67fa43c3f7d0,
+     16#152a4020145fb80,16#8d55139491dfbe,16#21d9cba585c059d,16#31475f363654635,
+     16#2567b17acb7a104,16#39201be3a7681c5,16#6bc675fd26b601,16#334b93232b1b1e3,
+     16#357c402cb732c6a,16#362e32efe4db46a,16#8edc7ae3da51e5,16#31573376785eac9,
+     16#6c6145ffa1169d,16#18ec2c393d45359,16#1f1a5f256e7130c,16#131cc2f49b8004f,
+     16#36f715a249f4ec2,16#1c27629826c50d3,16#914d9a6648726a,16#27f5bf5ce2301e8,
+     16#3dd493b8012970f,16#be13bed1e00e5c,16#ceef033b74ae10,16#3da38c6a50abe03,
+     16#15cbd1a421c7a8c,16#22794e3ec6ef3b1,16#26154d26e7ea99f,16#3a66681359a6ab6].
diff --git a/lib/stdlib/test/random_SUITE.erl b/lib/stdlib/test/random_SUITE.erl
index ac9d1a6c06..22c0900651 100644
--- a/lib/stdlib/test/random_SUITE.erl
+++ b/lib/stdlib/test/random_SUITE.erl
@@ -82,7 +82,7 @@ seed(suite) ->
     [];
 seed(Config) when is_list(Config) ->
     ?line Self = self(),
-    ?line Seed = {S1, S2, S3} = now(),
+    Seed = {S1, S2, S3} = erlang:timestamp(),
     ?line _ = spawn(fun() ->
     	random:seed(S1,S2,S3),
     	Rands = lists:foldl(fun
diff --git a/lib/stdlib/test/select_SUITE.erl b/lib/stdlib/test/select_SUITE.erl
index 546c25f954..201c38b25a 100644
--- a/lib/stdlib/test/select_SUITE.erl
+++ b/lib/stdlib/test/select_SUITE.erl
@@ -211,7 +211,7 @@ init_random(Config) ->
 	       {ok,[X]} ->
 		   X;
 	       _ ->
-		   {A,B,C} = erlang:now(),
+		   {A,B,C} = erlang:timestamp(),
 		   random:seed(A,B,C),
 		   get(random_seed)
 	   end,
diff --git a/lib/stdlib/test/sets_SUITE.erl b/lib/stdlib/test/sets_SUITE.erl
index c0cf1fc7e8..24f5d65f82 100644
--- a/lib/stdlib/test/sets_SUITE.erl
+++ b/lib/stdlib/test/sets_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2004-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2004-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -28,7 +28,7 @@
 	 create/1,add_element/1,del_element/1,
 	 subtract/1,intersection/1,union/1,is_subset/1,
 	 is_set/1,fold/1,filter/1,
-	 take_smallest/1,take_largest/1]).
+	 take_smallest/1,take_largest/1, iterate/1]).
 
 -include_lib("test_server/include/test_server.hrl").
 
@@ -48,7 +48,7 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
 all() -> 
     [create, add_element, del_element, subtract,
      intersection, union, is_subset, is_set, fold, filter,
-     take_smallest, take_largest].
+     take_smallest, take_largest, iterate].
 
 groups() -> 
     [].
@@ -426,6 +426,44 @@ take_largest_3(S0, List0, M) ->
 	    take_largest_3(S, List, M)
     end.
 
+iterate(Config) when is_list(Config) ->
+    test_all(fun iterate_1/1).
+
+iterate_1(M) ->
+    case M(module, []) of
+	gb_sets -> iterate_2(M);
+	_ -> ok
+    end,
+    M(empty, []).
+
+iterate_2(M) ->
+    random:seed(1, 2, 42),
+    iter_set(M, 1000).
+
+iter_set(_M, 0) ->
+    ok;
+iter_set(M, N) ->
+    L = [I || I <- lists:seq(1, N)],
+    T = M(from_list, L),
+    L = lists:reverse(iterate_set(M, T)),
+    R = random:uniform(N),
+    S = lists:reverse(iterate_set(M, R, T)),
+    S = [E || E <- L, E >= R],
+    iter_set(M, N-1).
+
+iterate_set(M, Set) ->
+    I = M(iterator, Set),
+    iterate_set_1(M, M(next, I), []).
+
+iterate_set(M, Start, Set) ->
+    I = M(iterator_from, {Start, Set}),
+    iterate_set_1(M, M(next, I), []).
+
+iterate_set_1(_, none, R) ->
+    R;
+iterate_set_1(M, {E, I}, R) ->
+    iterate_set_1(M, M(next, I), [E | R]).
+
 %%%
 %%% Helper functions.
 %%%
diff --git a/lib/stdlib/test/sets_test_lib.erl b/lib/stdlib/test/sets_test_lib.erl
index 86f009a8f9..772139406d 100644
--- a/lib/stdlib/test/sets_test_lib.erl
+++ b/lib/stdlib/test/sets_test_lib.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2004-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2004-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -34,7 +34,10 @@ new(Mod, Eq) ->
 	(is_empty, S) -> is_empty(Mod, S);
 	(is_set, S) -> Mod:is_set(S);
 	(is_subset, {S,Set}) -> is_subset(Mod, Eq, S, Set);
+        (iterator, S) -> Mod:iterator(S);
+        (iterator_from, {Start, S}) -> Mod:iterator_from(Start, S);
 	(module, []) -> Mod;
+        (next, I) -> Mod:next(I);
 	(singleton, E) -> singleton(Mod, E);
 	(size, S) -> Mod:size(S);
 	(subtract, {S1,S2}) -> subtract(Mod, S1, S2);
diff --git a/lib/stdlib/test/shell_SUITE.erl b/lib/stdlib/test/shell_SUITE.erl
index f841e2c4a6..7c18560498 100644
--- a/lib/stdlib/test/shell_SUITE.erl
+++ b/lib/stdlib/test/shell_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2004-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2004-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -404,13 +404,14 @@ records(Config) when is_list(Config) ->
     ?line ok = file:write_file(Test, Contents),
 
     RR5 = "rr(\"" ++ Test ++ "\", '_', {d,test1}), rl([test1,test2]).",
-    ?line [{attribute,1,record,{test1,_}},ok] = scan(RR5),
+    A1 = erl_anno:new(1),
+    [{attribute,A1,record,{test1,_}},ok] = scan(RR5),
     RR6 = "rr(\"" ++ Test ++ "\", '_', {d,test2}), rl([test1,test2]).",
-    ?line [{attribute,1,record,{test2,_}},ok] = scan(RR6),
+    [{attribute,A1,record,{test2,_}},ok] = scan(RR6),
     RR7 = "rr(\"" ++ Test ++ 
            "\", '_', [{d,test1},{d,test2,17}]), rl([test1,test2]).",
-    ?line [{attribute,1,record,{test1,_}},{attribute,1,record,{test2,_}},
-           ok] = scan(RR7),
+    [{attribute,A1,record,{test1,_}},{attribute,A1,record,{test2,_}},ok] =
+        scan(RR7),
     ?line PreReply = scan(<<"rr(prim_file).">>), % preloaded...
     ?line true = is_list(PreReply),
     ?line Dir = filename:join(?config(priv_dir, Config), "*.erl"),
diff --git a/lib/stdlib/test/stdlib_SUITE.erl b/lib/stdlib/test/stdlib_SUITE.erl
index 3d09bd27ff..206eb4fd74 100644
--- a/lib/stdlib/test/stdlib_SUITE.erl
+++ b/lib/stdlib/test/stdlib_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1997-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -22,14 +22,7 @@
 -module(stdlib_SUITE).
 -include_lib("test_server/include/test_server.hrl").
 
-
-% Test server specific exports
--export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, 
-	 init_per_group/2,end_per_group/2]).
--export([init_per_testcase/2, end_per_testcase/2]).
-
-% Test cases must be exported.
--export([app_test/1, appup_test/1]).
+-compile(export_all).
 
 %%
 %% all/1
@@ -37,10 +30,10 @@
 suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() -> 
-    [app_test, appup_test].
+    [app_test, appup_test, {group,upgrade}].
 
 groups() -> 
-    [].
+    [{upgrade,[minor_upgrade,major_upgrade]}].
 
 init_per_suite(Config) ->
     Config.
@@ -48,9 +41,13 @@ init_per_suite(Config) ->
 end_per_suite(_Config) ->
     ok.
 
+init_per_group(upgrade, Config) ->
+    ct_release_test:init(Config);
 init_per_group(_GroupName, Config) ->
     Config.
 
+end_per_group(upgrade, Config) ->
+    ct_release_test:cleanup(Config);
 end_per_group(_GroupName, Config) ->
     Config.
 
@@ -165,3 +162,26 @@ check_appup([Vsn|Vsns],Instrs,Expected) ->
     end;
 check_appup([],_,_) ->
     ok.
+
+
+minor_upgrade(Config) ->
+    ct_release_test:upgrade(stdlib,minor,{?MODULE,[]},Config).
+
+major_upgrade(Config) ->
+    ct_release_test:upgrade(stdlib,major,{?MODULE,[]},Config).
+
+%% Version numbers are checked by ct_release_test, so there is nothing
+%% more to check here...
+upgrade_init(CtData,State) ->
+    {ok,{FromVsn,ToVsn}} = ct_release_test:get_app_vsns(CtData,stdlib),
+    case ct_release_test:get_appup(CtData,stdlib) of
+	{ok,{FromVsn,ToVsn,[restart_new_emulator],[restart_new_emulator]}} ->
+	    io:format("Upgrade/downgrade ~p <--> ~p",[FromVsn,ToVsn]);
+	{error,{vsn_not_found,_}} when FromVsn==ToVsn ->
+	    io:format("No upgrade test for stdlib, same version")
+    end,
+    State.
+upgrade_upgraded(_CtData,State) ->
+    State.
+upgrade_downgraded(_CtData,State) ->
+    State.
diff --git a/lib/stdlib/test/string_SUITE.erl b/lib/stdlib/test/string_SUITE.erl
index fccd1bef95..e9ea2e3522 100644
--- a/lib/stdlib/test/string_SUITE.erl
+++ b/lib/stdlib/test/string_SUITE.erl
@@ -120,7 +120,7 @@ chr_rchr(suite) ->
 chr_rchr(doc) ->
     [];
 chr_rchr(Config) when is_list(Config) ->
-    ?line {_,_,X} = now(),
+    {_,_,X} = erlang:timestamp(),
     ?line 0 = string:chr("", (X rem (255-32)) + 32),
     ?line 0 = string:rchr("", (X rem (255-32)) + 32),
     ?line 1 = string:chr("x", $x),
@@ -144,7 +144,7 @@ str_rstr(suite) ->
 str_rstr(doc) ->
     [];
 str_rstr(Config) when is_list(Config) ->
-    ?line {_,_,X} = now(),
+    {_,_,X} = erlang:timestamp(),
     ?line 0 = string:str("", [(X rem (255-32)) + 32]),
     ?line 0 = string:rstr("", [(X rem (255-32)) + 32]),
     ?line 1 = string:str("x", "x"),
@@ -217,21 +217,39 @@ substr(Config) when is_list(Config) ->
     ?line {'EXIT',_} = (catch string:substr("1234", "1")),
     ok.
 
-tokens(suite) ->
-    [];
-tokens(doc) ->
-    [];
 tokens(Config) when is_list(Config) ->
-    ?line [] = string:tokens("",""),
-    ?line [] = string:tokens("abc","abc"),
-    ?line ["abc"] = string:tokens("abc", ""),
-    ?line ["1","2 34","4","5"] = string:tokens("1,2 34,4;5", ";,"),
-    %% invalid arg type
-    ?line {'EXIT',_} = (catch string:tokens('x,y', ",")), 
+    [] = string:tokens("",""),
+    [] = string:tokens("abc","abc"),
+    ["abc"] = string:tokens("abc", ""),
+    ["1","2 34","45","5","6","7"] = do_tokens("1,2 34,45;5,;6;,7", ";,"),
+
     %% invalid arg type
-    ?line {'EXIT',_} = (catch string:tokens("x,y", ',')), 
+    {'EXIT',_} = (catch string:tokens('x,y', ",")),
+    {'EXIT',_} = (catch string:tokens("x,y", ',')),
     ok.
 
+do_tokens(S0, Sep0) ->
+    [H|T] = Sep0,
+    S = [replace_sep(C, T, H) || C <- S0],
+    Sep = [H],
+    io:format("~p ~p\n", [S0,Sep0]),
+    io:format("~p ~p\n", [S,Sep]),
+
+    Res = string:tokens(S0, Sep0),
+    Res = string:tokens(Sep0++S0, Sep0),
+    Res = string:tokens(S0++Sep0, Sep0),
+
+    Res = string:tokens(S, Sep),
+    Res = string:tokens(Sep++S, Sep),
+    Res = string:tokens(S++Sep, Sep),
+
+    Res.
+
+replace_sep(C, Seps, New) ->
+    case lists:member(C, Seps) of
+	true -> New;
+	false -> C
+    end.
 
 chars(suite) ->
     [];
diff --git a/lib/stdlib/test/supervisor_SUITE.erl b/lib/stdlib/test/supervisor_SUITE.erl
index 836ea7c030..015b09f35e 100644
--- a/lib/stdlib/test/supervisor_SUITE.erl
+++ b/lib/stdlib/test/supervisor_SUITE.erl
@@ -37,9 +37,12 @@
 	  sup_start_ignore_child/1, sup_start_ignore_temporary_child/1,
 	  sup_start_ignore_temporary_child_start_child/1,
 	  sup_start_ignore_temporary_child_start_child_simple/1,
-	  sup_start_error_return/1, sup_start_fail/1, sup_stop_infinity/1,
-	  sup_stop_timeout/1, sup_stop_brutal_kill/1, child_adm/1,
-	  child_adm_simple/1, child_specs/1, extra_return/1]).
+          sup_start_ignore_permanent_child_start_child_simple/1,
+	  sup_start_error_return/1, sup_start_fail/1,
+	  sup_start_map/1, sup_start_map_faulty_specs/1,
+	  sup_stop_infinity/1, sup_stop_timeout/1, sup_stop_brutal_kill/1,
+	  child_adm/1, child_adm_simple/1, child_specs/1, extra_return/1,
+	  sup_flags/1]).
 
 %% Tests concept permanent, transient and temporary 
 -export([ permanent_normal/1, transient_normal/1,
@@ -51,7 +54,8 @@
 	  temporary_abnormal/1, temporary_bystander/1]).
 
 %% Restart strategy tests 
--export([ one_for_one/1,
+-export([ multiple_restarts/1,
+	  one_for_one/1,
 	  one_for_one_escalation/1, one_for_all/1,
 	  one_for_all_escalation/1, one_for_all_other_child_fails_restart/1,
 	  simple_one_for_one/1, simple_one_for_one_escalation/1,
@@ -65,7 +69,8 @@
 	 do_not_save_child_specs_for_temporary_children/1,
 	 simple_one_for_one_scale_many_temporary_children/1,
          simple_global_supervisor/1, hanging_restart_loop/1,
-	 hanging_restart_loop_simple/1]).
+	 hanging_restart_loop_simple/1, code_change/1, code_change_map/1,
+	 code_change_simple/1, code_change_simple_map/1]).
 
 %%-------------------------------------------------------------------------
 
@@ -73,8 +78,9 @@ suite() ->
     [{ct_hooks,[ts_install_cth]}].
 
 all() -> 
-    [{group, sup_start}, {group, sup_stop}, child_adm,
-     child_adm_simple, extra_return, child_specs,
+    [{group, sup_start}, {group, sup_start_map}, {group, sup_stop}, child_adm,
+     child_adm_simple, extra_return, child_specs, sup_flags,
+     multiple_restarts,
      {group, restart_one_for_one},
      {group, restart_one_for_all},
      {group, restart_simple_one_for_one},
@@ -85,7 +91,8 @@ all() ->
      count_children, do_not_save_start_parameters_for_temporary_children,
      do_not_save_child_specs_for_temporary_children,
      simple_one_for_one_scale_many_temporary_children, temporary_bystander,
-     simple_global_supervisor, hanging_restart_loop, hanging_restart_loop_simple].
+     simple_global_supervisor, hanging_restart_loop, hanging_restart_loop_simple,
+     code_change, code_change_map, code_change_simple, code_change_simple_map].
 
 groups() -> 
     [{sup_start, [],
@@ -93,7 +100,10 @@ groups() ->
        sup_start_ignore_child, sup_start_ignore_temporary_child,
        sup_start_ignore_temporary_child_start_child,
        sup_start_ignore_temporary_child_start_child_simple,
+       sup_start_ignore_permanent_child_start_child_simple,
        sup_start_error_return, sup_start_fail]},
+     {sup_start_map, [],
+      [sup_start_map, sup_start_map_faulty_specs]},
      {sup_stop, [],
       [sup_stop_infinity, sup_stop_timeout,
        sup_stop_brutal_kill]},
@@ -242,6 +252,27 @@ sup_start_ignore_temporary_child_start_child_simple(Config)
     [1,1,0,1] = get_child_counts(sup_test).
 
 %%-------------------------------------------------------------------------
+%% Tests what happens if child's init-callback returns ignore for a
+%% permanent child when child is started with start_child/2, and the
+%% supervisor is simple_one_for_one.
+%% Child spec shall NOT be saved!!!
+sup_start_ignore_permanent_child_start_child_simple(Config)
+  when is_list(Config) ->
+    process_flag(trap_exit, true),
+    Child1 = {child1, {supervisor_1, start_child, [ignore]},
+	      permanent, 1000, worker, []},
+    {ok, Pid}  = start_link({ok, {{simple_one_for_one, 2, 3600}, [Child1]}}),
+
+    {ok, undefined} = supervisor:start_child(sup_test, []),
+    {ok, CPid2} = supervisor:start_child(sup_test, []),
+
+    [{undefined, CPid2, worker, []}] = supervisor:which_children(sup_test),
+    [1,1,0,1] = get_child_counts(sup_test),
+
+    %% Regression test: check that the supervisor terminates without error.
+    exit(Pid, shutdown),
+    check_exit_reason(Pid, shutdown).
+%%-------------------------------------------------------------------------
 %% Tests what happens if init-callback returns a invalid value.
 sup_start_error_return(Config) when is_list(Config) ->
     process_flag(trap_exit, true),
@@ -256,6 +287,60 @@ sup_start_fail(Config) when is_list(Config) ->
     check_exit_reason(Term).
 
 %%-------------------------------------------------------------------------
+%% Tests that the supervisor process starts correctly with map
+%% startspec, and that the full childspec can be read.
+sup_start_map(Config) when is_list(Config) ->
+    process_flag(trap_exit, true),
+    Child1 = #{id=>child1, start=>{supervisor_1, start_child, []}},
+    Child2 = #{id=>child2,
+	       start=>{supervisor_1, start_child, []},
+	       shutdown=>brutal_kill},
+    Child3 = #{id=>child3,
+	       start=>{supervisor_1, start_child, []},
+	       type=>supervisor},
+    {ok, Pid} = start_link({ok, {#{}, [Child1,Child2,Child3]}}),
+
+    %% Check default values
+    {ok,#{id:=child1,
+	  start:={supervisor_1,start_child,[]},
+	  restart:=permanent,
+	  shutdown:=5000,
+	  type:=worker,
+	  modules:=[supervisor_1]}} = supervisor:get_childspec(Pid, child1),
+    {ok,#{id:=child2,
+	  start:={supervisor_1,start_child,[]},
+	  restart:=permanent,
+	  shutdown:=brutal_kill,
+	  type:=worker,
+	  modules:=[supervisor_1]}} = supervisor:get_childspec(Pid, child2),
+    {ok,#{id:=child3,
+	  start:={supervisor_1,start_child,[]},
+	  restart:=permanent,
+	  shutdown:=infinity,
+	  type:=supervisor,
+	  modules:=[supervisor_1]}} = supervisor:get_childspec(Pid, child3),
+    {error,not_found} = supervisor:get_childspec(Pid, child4),
+    terminate(Pid, shutdown).
+
+%%-------------------------------------------------------------------------
+%% Tests that the supervisor produces good error messages when start-
+%% and child specs are faulty.
+sup_start_map_faulty_specs(Config) when is_list(Config) ->
+    process_flag(trap_exit, true),
+    Child1 = #{start=>{supervisor_1, start_child, []}},
+    Child2 = #{id=>child2},
+    Child3 = #{id=>child3,
+	       start=>{supervisor_1, start_child, []},
+	       silly_flag=>true},
+    Child4 = child4,
+    {error,{start_spec,missing_id}} = start_link({ok, {#{}, [Child1]}}),
+    {error,{start_spec,missing_start}} = start_link({ok, {#{}, [Child2]}}),
+    {ok,Pid} = start_link({ok, {#{}, [Child3]}}),
+    terminate(Pid,shutdown),
+    {error,{start_spec,{invalid_child_spec,child4}}} =
+	start_link({ok, {#{}, [Child4]}}).
+
+%%-------------------------------------------------------------------------
 %% See sup_stop/1 when Shutdown = infinity, this walue is allowed for
 %% children of type supervisor _AND_ worker.
 sup_stop_infinity(Config) when is_list(Config) ->
@@ -479,7 +564,7 @@ child_adm_simple(Config) when is_list(Config) ->
 %% Tests child specs, invalid formats should be rejected.
 child_specs(Config) when is_list(Config) ->
     process_flag(trap_exit, true),
-    {ok, _Pid} = start_link({ok, {{one_for_one, 2, 3600}, []}}),
+    {ok, Pid} = start_link({ok, {{one_for_one, 2, 3600}, []}}),
     {error, _} = supervisor:start_child(sup_test, hej),
 
     %% Bad child specs 
@@ -509,6 +594,7 @@ child_specs(Config) when is_list(Config) ->
     {error, {invalid_modules,dy}}
 	= supervisor:start_child(sup_test, B5),
 
+    {error, {badarg, _}} = supervisor:check_childspecs(B1), % should be list
     {error, {invalid_mfa,mfa}} = supervisor:check_childspecs([B1]),
     {error, {invalid_restart_type,prmanent}} =
 	supervisor:check_childspecs([B2]),
@@ -524,6 +610,54 @@ child_specs(Config) when is_list(Config) ->
     ok = supervisor:check_childspecs([C3]),
     ok = supervisor:check_childspecs([C4]),
     ok = supervisor:check_childspecs([C5]),
+
+    {error,{duplicate_child_name,child}} = supervisor:check_childspecs([C1,C2]),
+
+    terminate(Pid, shutdown),
+
+    %% Faulty child specs in supervisor start
+    {error, {start_spec, {invalid_mfa, mfa}}} =
+	 start_link({ok, {{one_for_one, 2, 3600}, [B1]}}),
+    {error, {start_spec, {invalid_restart_type, prmanent}}} =
+	start_link({ok, {{simple_one_for_one, 2, 3600}, [B2]}}),
+
+    %% simple_one_for_one needs exactly one child
+    {error,{bad_start_spec,[]}} =
+	start_link({ok, {{simple_one_for_one, 2, 3600}, []}}),
+    {error,{bad_start_spec,[C1,C2]}} =
+	start_link({ok, {{simple_one_for_one, 2, 3600}, [C1,C2]}}),
+
+    ok.
+
+%%-------------------------------------------------------------------------
+%% Test error handling of supervisor flags
+sup_flags(_Config) ->
+    process_flag(trap_exit,true),
+    {error,{supervisor_data,{invalid_strategy,_}}} =
+	start_link({ok, {{none_for_one, 2, 3600}, []}}),
+    {error,{supervisor_data,{invalid_strategy,_}}} =
+	start_link({ok, {#{strategy=>none_for_one}, []}}),
+    {error,{supervisor_data,{invalid_intensity,_}}} =
+	start_link({ok, {{one_for_one, infinity, 3600}, []}}),
+    {error,{supervisor_data,{invalid_intensity,_}}} =
+	start_link({ok, {#{intensity=>infinity}, []}}),
+    {error,{supervisor_data,{invalid_period,_}}} =
+	start_link({ok, {{one_for_one, 2, 0}, []}}),
+    {error,{supervisor_data,{invalid_period,_}}} =
+	start_link({ok, {#{period=>0}, []}}),
+    {error,{supervisor_data,{invalid_period,_}}} =
+	start_link({ok, {{one_for_one, 2, infinity}, []}}),
+    {error,{supervisor_data,{invalid_period,_}}} =
+	start_link({ok, {#{period=>infinity}, []}}),
+
+    %% SupFlags other than a map or a 3-tuple
+    {error,{supervisor_data,{invalid_type,_}}} =
+	start_link({ok, {{one_for_one, 2}, []}}),
+
+    %% Unexpected flags are ignored
+    {ok,Pid} = start_link({ok,{#{silly_flag=>true},[]}}),
+    terminate(Pid,shutdown),
+
     ok.
 
 %%-------------------------------------------------------------------------
@@ -764,6 +898,39 @@ temporary_bystander(_Config) ->
     [{child1, _, _, _}] = supervisor:which_children(SupPid2).
 
 %%-------------------------------------------------------------------------
+%% Test restarting a process multiple times, being careful not
+%% to exceed the maximum restart frquency.
+multiple_restarts(Config) when is_list(Config) ->
+    process_flag(trap_exit, true),
+    Child1 = #{id => child1,
+	       start => {supervisor_1, start_child, []},
+	       restart => permanent,
+	       shutdown => brutal_kill,
+	       type => worker,
+	       modules => []},
+    SupFlags = #{strategy => one_for_one,
+		 intensity => 1,
+		 period => 1},
+    {ok, SupPid} = start_link({ok, {SupFlags, []}}),
+    {ok, CPid1} = supervisor:start_child(sup_test, Child1),
+
+    %% Terminate the process several times, but being careful
+    %% not to exceed the maximum restart intensity.
+    terminate(SupPid, CPid1, child1, abnormal),
+    _ = [begin
+	     receive after 2100 -> ok end,
+	     [{_, Pid, _, _}|_] = supervisor:which_children(sup_test),
+	     terminate(SupPid, Pid, child1, abnormal)
+	 end || _ <- [1,2,3]],
+
+    %% Verify that the supervisor is still alive and clean up.
+    ok = supervisor:terminate_child(SupPid, child1),
+    ok = supervisor:delete_child(SupPid, child1),
+    exit(SupPid, kill),
+    ok.
+
+
+%%-------------------------------------------------------------------------
 %% Test the one_for_one base case.
 one_for_one(Config) when is_list(Config) ->
     process_flag(trap_exit, true),
@@ -1647,6 +1814,186 @@ hanging_restart_loop_simple(Config) when is_list(Config) ->
     ok.
 
 %%-------------------------------------------------------------------------
+%% Test the code_change function
+code_change(_Config) ->
+    process_flag(trap_exit, true),
+
+    SupFlags = {one_for_one, 0, 1},
+    {ok, Pid} = start_link({ok, {SupFlags, []}}),
+    [] = supervisor:which_children(Pid),
+
+    %% Change supervisor flags
+    S1 = sys:get_state(Pid),
+    ok = fake_upgrade(Pid,{ok, {{one_for_one, 1, 3}, []}}),
+    S2 = sys:get_state(Pid),
+    true = (S1 /= S2),
+
+    %% Faulty childspec
+    FaultyChild = {child1, permanent, brutal_kill, worker, []}, % missing start
+    {error,{error,{invalid_child_spec,FaultyChild}}} =
+	fake_upgrade(Pid,{ok,{SupFlags,[FaultyChild]}}),
+
+    %% Add child1 and child2
+    Child1 = {child1, {supervisor_1, start_child, []},
+	      permanent, 2000, worker, []},
+    Child2 = {child2, {supervisor_1, start_child, []},
+	      permanent, brutal_kill, worker, []},
+    ok = fake_upgrade(Pid,{ok,{SupFlags,[Child1,Child2]}}),
+    %% Children are not automatically started
+    {ok,_} = supervisor:restart_child(Pid,child1),
+    {ok,_} = supervisor:restart_child(Pid,child2),
+    [{child2,_,_,_},{child1,_,_,_}] = supervisor:which_children(Pid),
+
+    %% Change child1, remove child2 and add child3
+    Child11 = {child1, {supervisor_1, start_child, []},
+	      permanent, 1000, worker, []},
+    Child3 = {child3, {supervisor_1, start_child, []},
+	      permanent, brutal_kill, worker, []},
+    ok = fake_upgrade(Pid,{ok, {SupFlags, [Child11,Child3]}}),
+    %% Children are not deleted on upgrade, so it is ok that child2 is
+    %% still here
+    [{child2,_,_,_},{child3,_,_,_},{child1,_,_,_}] =
+	supervisor:which_children(Pid),
+
+    %% Ignore during upgrade
+    ok = fake_upgrade(Pid,ignore),
+
+    %% Error during upgrade
+    {error, faulty_return} = fake_upgrade(Pid,faulty_return),
+
+    %% Faulty flags
+    {error,{error, {invalid_intensity,faulty_intensity}}} =
+	fake_upgrade(Pid,{ok, {{one_for_one,faulty_intensity,1}, []}}),
+    {error,{error,{bad_flags, faulty_flags}}} =
+	fake_upgrade(Pid,{ok, {faulty_flags, []}}),
+
+    terminate(Pid,shutdown).
+
+code_change_map(_Config) ->
+    process_flag(trap_exit, true),
+
+    {ok, Pid} = start_link({ok, {#{}, []}}),
+    [] = supervisor:which_children(Pid),
+
+    %% Change supervisor flags
+    S1 = sys:get_state(Pid),
+    ok = fake_upgrade(Pid,{ok, {#{intensity=>1, period=>3}, []}}),
+    S2 = sys:get_state(Pid),
+    true = (S1 /= S2),
+
+    %% Faulty childspec
+    FaultyChild = #{id=>faulty_child},
+    {error,{error,missing_start}} =
+	fake_upgrade(Pid,{ok,{#{},[FaultyChild]}}),
+
+    %% Add child1 and child2
+    Child1 = #{id=>child1,
+	       start=>{supervisor_1, start_child, []},
+	       shutdown=>2000},
+    Child2 = #{id=>child2,
+	       start=>{supervisor_1, start_child, []}},
+    ok = fake_upgrade(Pid,{ok,{#{},[Child1,Child2]}}),
+    %% Children are not automatically started
+    {ok,_} = supervisor:restart_child(Pid,child1),
+    {ok,_} = supervisor:restart_child(Pid,child2),
+    [{child2,_,_,_},{child1,_,_,_}] = supervisor:which_children(Pid),
+    {ok,#{shutdown:=2000}} = supervisor:get_childspec(Pid,child1),
+
+    %% Change child1, remove child2 and add child3
+    Child11 = #{id=>child1,
+		start=>{supervisor_1, start_child, []},
+		shutdown=>1000},
+    Child3 = #{id=>child3,
+	       start=>{supervisor_1, start_child, []}},
+    ok = fake_upgrade(Pid,{ok, {#{}, [Child11,Child3]}}),
+    %% Children are not deleted on upgrade, so it is ok that child2 is
+    %% still here
+    [{child2,_,_,_},{child3,_,_,_},{child1,_,_,_}] =
+	supervisor:which_children(Pid),
+    {ok,#{shutdown:=1000}} = supervisor:get_childspec(Pid,child1),
+
+    %% Ignore during upgrade
+    ok = fake_upgrade(Pid,ignore),
+
+    %% Error during upgrade
+    {error, faulty_return} = fake_upgrade(Pid,faulty_return),
+
+    %% Faulty flags
+    {error,{error, {invalid_intensity,faulty_intensity}}} =
+	fake_upgrade(Pid,{ok, {#{intensity=>faulty_intensity}, []}}),
+
+    terminate(Pid,shutdown).
+
+code_change_simple(_Config) ->
+    process_flag(trap_exit, true),
+
+    SimpleChild1 = {child1,{supervisor_1, start_child, []}, permanent,
+		    brutal_kill, worker, []},
+    SimpleFlags = {simple_one_for_one, 0, 1},
+    {ok, SimplePid}  = start_link({ok, {SimpleFlags,[SimpleChild1]}}),
+    %% Change childspec
+    SimpleChild11 = {child1,{supervisor_1, start_child, []}, permanent,
+		    1000, worker, []},
+    ok = fake_upgrade(SimplePid,{ok,{SimpleFlags,[SimpleChild11]}}),
+
+    %% Attempt to add child
+    SimpleChild2 = {child2,{supervisor_1, start_child, []}, permanent,
+		    brutal_kill, worker, []},
+
+    {error, {error, {ok,[_,_]}}} =
+	fake_upgrade(SimplePid,{ok,{SimpleFlags,[SimpleChild1,SimpleChild2]}}),
+
+    %% Attempt to remove child
+    {error, {error, {ok,[]}}} = fake_upgrade(SimplePid,{ok,{SimpleFlags,[]}}),
+
+    terminate(SimplePid,shutdown),
+    ok.
+
+code_change_simple_map(_Config) ->
+    process_flag(trap_exit, true),
+
+    SimpleChild1 = #{id=>child1,
+		     start=>{supervisor_1, start_child, []}},
+    SimpleFlags = #{strategy=>simple_one_for_one},
+    {ok, SimplePid}  = start_link({ok, {SimpleFlags,[SimpleChild1]}}),
+    %% Change childspec
+    SimpleChild11 = #{id=>child1,
+		      start=>{supervisor_1, start_child, []},
+		      shutdown=>1000},
+    ok = fake_upgrade(SimplePid,{ok,{SimpleFlags,[SimpleChild11]}}),
+
+    %% Attempt to add child
+    SimpleChild2 = #{id=>child2,
+		     start=>{supervisor_1, start_child, []}},
+    {error, {error, {ok, [_,_]}}} =
+	fake_upgrade(SimplePid,{ok,{SimpleFlags,[SimpleChild1,SimpleChild2]}}),
+
+    %% Attempt to remove child
+    {error, {error, {ok, []}}} =
+	fake_upgrade(SimplePid,{ok,{SimpleFlags,[]}}),
+
+    terminate(SimplePid,shutdown),
+    ok.
+
+fake_upgrade(Pid,NewInitReturn) ->
+    ok = sys:suspend(Pid),
+
+    %% Update state to fake code change
+    %% The #state record in supervisor.erl holds the arguments given
+    %% to the callback init function. By replacing these arguments the
+    %% init function will return something new and by that fake a code
+    %% change (see init function above in this module).
+    Fun = fun(State) ->
+		  Size = size(State), % 'args' is the last field in #state.
+		  setelement(Size,State,NewInitReturn)
+	  end,
+    sys:replace_state(Pid,Fun),
+
+    R = sys:change_code(Pid,gen_server,dummy_vsn,[]),
+    ok = sys:resume(Pid),
+    R.
+
+%%-------------------------------------------------------------------------
 terminate(Pid, Reason) when Reason =/= supervisor ->
     terminate(dummy, Pid, dummy, Reason).
 
diff --git a/lib/stdlib/test/sys_SUITE.erl b/lib/stdlib/test/sys_SUITE.erl
index f38bc87ae5..047ee9f1fa 100644
--- a/lib/stdlib/test/sys_SUITE.erl
+++ b/lib/stdlib/test/sys_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2014. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -202,14 +202,7 @@ spec_proc(Mod) ->
 		       {Mod,system_get_state},{throw,fail}},_}} ->
 		 ok
 	 end,
-    Mod:stop(),
-    WaitForUnregister = fun W() ->
-		       case whereis(Mod) of
-			   undefined -> ok;
-			   _ -> timer:sleep(10), W()
-		       end
-	       end,
-    WaitForUnregister(),
+    ok = sys:terminate(Mod, normal),
     {ok,_} = Mod:start_link(4),
     ok = case catch sys:replace_state(Mod, fun(_) -> {} end) of
 	     {} ->
@@ -218,8 +211,7 @@ spec_proc(Mod) ->
 		       {Mod,system_replace_state},{throw,fail}},_}} ->
 		 ok
 	 end,
-    Mod:stop(),
-    WaitForUnregister(),
+    ok = sys:terminate(Mod, normal),
     {ok,_} = Mod:start_link(4),
     StateFun = fun(_) -> error(fail) end,
     ok = case catch sys:replace_state(Mod, StateFun) of
@@ -231,7 +223,7 @@ spec_proc(Mod) ->
 	     {'EXIT',{{callback_failed,StateFun,{error,fail}},_}} ->
 		 ok
 	 end,
-    Mod:stop().
+    ok = sys:terminate(Mod, normal).
 
 %%%%%%%%%%%%%%%%%%%%
 %% Dummy server
diff --git a/lib/stdlib/test/sys_sp1.erl b/lib/stdlib/test/sys_sp1.erl
index e84ffcfa12..0fb288991f 100644
--- a/lib/stdlib/test/sys_sp1.erl
+++ b/lib/stdlib/test/sys_sp1.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2014. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -17,7 +17,7 @@
 %% %CopyrightEnd%
 %%
 -module(sys_sp1).
--export([start_link/1, stop/0]).
+-export([start_link/1]).
 -export([alloc/0, free/1]).
 -export([init/1]).
 -export([system_continue/3, system_terminate/4,
@@ -31,10 +31,6 @@
 start_link(NumCh) ->
     proc_lib:start_link(?MODULE, init, [[self(),NumCh]]).
 
-stop() ->
-    ?MODULE ! stop,
-    ok.
-
 alloc() ->
     ?MODULE ! {self(), alloc},
     receive
@@ -70,11 +66,7 @@ loop(Chs, Parent, Deb) ->
             loop(Chs2, Parent, Deb2);
         {system, From, Request} ->
             sys:handle_system_msg(Request, From, Parent,
-                                  ?MODULE, Deb, Chs);
-        stop ->
-            sys:handle_debug(Deb, fun write_debug/3,
-                             ?MODULE, {in, stop}),
-            ok
+                                  ?MODULE, Deb, Chs)
     end.
 
 system_continue(Parent, Deb, Chs) ->
diff --git a/lib/stdlib/test/sys_sp2.erl b/lib/stdlib/test/sys_sp2.erl
index 56a5e4d071..a0847b5838 100644
--- a/lib/stdlib/test/sys_sp2.erl
+++ b/lib/stdlib/test/sys_sp2.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2014. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -17,7 +17,7 @@
 %% %CopyrightEnd%
 %%
 -module(sys_sp2).
--export([start_link/1, stop/0]).
+-export([start_link/1]).
 -export([alloc/0, free/1]).
 -export([init/1]).
 -export([system_continue/3, system_terminate/4,
@@ -30,10 +30,6 @@
 start_link(NumCh) ->
     proc_lib:start_link(?MODULE, init, [[self(),NumCh]]).
 
-stop() ->
-    ?MODULE ! stop,
-    ok.
-
 alloc() ->
     ?MODULE ! {self(), alloc},
     receive
@@ -45,11 +41,6 @@ free(Ch) ->
     ?MODULE ! {free, Ch},
     ok.
 
-%% can't use 2-tuple for state here as we do in sys_sp1, since the 2-tuple
-%% is not compatible with the backward compatibility handling for
-%% sys:get_state in sys.erl
--record(state, {alloc,free}).
-
 init([Parent,NumCh]) ->
     register(?MODULE, self()),
     Chs = channels(NumCh),
@@ -74,11 +65,7 @@ loop(Chs, Parent, Deb) ->
             loop(Chs2, Parent, Deb2);
         {system, From, Request} ->
             sys:handle_system_msg(Request, From, Parent,
-                                  ?MODULE, Deb, Chs);
-        stop ->
-            sys:handle_debug(Deb, fun write_debug/3,
-                             ?MODULE, {in, stop}),
-            ok
+                                  ?MODULE, Deb, Chs)
     end.
 
 system_continue(Parent, Deb, Chs) ->
@@ -91,17 +78,17 @@ write_debug(Dev, Event, Name) ->
     io:format(Dev, "~p event = ~p~n", [Name, Event]).
 
 channels(NumCh) ->
-    #state{alloc=[], free=lists:seq(1,NumCh)}.
+    {_Allocated=[], _Free=lists:seq(1,NumCh)}.
 
-alloc(#state{free=[]}=Channels) ->
-    {{error, "no channels available"}, Channels};
-alloc(#state{alloc=Allocated, free=[H|T]}) ->
-    {H, #state{alloc=[H|Allocated], free=T}}.
+alloc({_, []}) ->
+    {error, "no channels available"};
+alloc({Allocated, [H|T]}) ->
+    {H, {[H|Allocated], T}}.
 
-free(Ch, #state{alloc=Alloc, free=Free}=Channels) ->
+free(Ch, {Alloc, Free}=Channels) ->
     case lists:member(Ch, Alloc) of
         true ->
-            #state{alloc=lists:delete(Ch, Alloc), free=[Ch|Free]};
+            {lists:delete(Ch, Alloc), [Ch|Free]};
         false ->
             Channels
     end.
diff --git a/lib/stdlib/test/tar_SUITE.erl b/lib/stdlib/test/tar_SUITE.erl
index 9b6d65011e..3b54cd0f34 100644
--- a/lib/stdlib/test/tar_SUITE.erl
+++ b/lib/stdlib/test/tar_SUITE.erl
@@ -89,7 +89,7 @@ borderline_test(Size, TempDir) ->
     ?line io:format("Testing size ~p", [Size]),
 
     %% Create a file and archive it.
-    ?line {_, _, X0} = erlang:now(),
+    X0 = erlang:monotonic_time(),
     ?line file:write_file(Name, random_byte_list(X0, Size)),
     ?line ok = erl_tar:create(Archive, [Name]),
     ?line ok = file:delete(Name),
diff --git a/lib/stdlib/test/timer_SUITE.erl b/lib/stdlib/test/timer_SUITE.erl
index bea2b3fb2a..ae32d98807 100644
--- a/lib/stdlib/test/timer_SUITE.erl
+++ b/lib/stdlib/test/timer_SUITE.erl
@@ -25,14 +25,11 @@
 
 -include_lib("test_server/include/test_server.hrl").
 
-%% Test suite for timer module. This is a really nasty test it runs a
-%% lot of timeouts and then checks in the end if any of them was
-%% trigggered too early or if any late timeouts was much too
-%% late. What should be added is more testing of the interface
-%% functions I guess. But I don't have time for that now.
+%% Random test of the timer module. This is a really nasty test, as it
+%% runs a lot of timeouts and then checks in the end if any of them
+%% was triggered too early or if any late timeouts was much too late.
 %%
-%% Expect it to run for at least 5-10 minutes!
-
+%% Running time on average is about 90 seconds.
 
 %% The main test case in this module is "do_big_test", which
 %% orders a large number of timeouts and measures how
@@ -40,15 +37,8 @@
 %% also a number of other concurrent processes running "nrev" at the same
 %% time. The result is analyzed afterwards by trying to check if the
 %% measured values are reasonable. It is hard to determine what is
-%% reasonable on different machines therefore the test can sometimes
-%% fail, even though the timer module is ok. I have checked against
-%% previous versions of the timer module (which contained bugs) and it
-%% seems it fails every time when running the buggy timer modules.
-%% 
-%% The solution is to rewrite the test suite. Possible strategies for a
-%% rewrite: smarter math on the measuring data, test cases with varying
-%% amount of load. The test suite should also include tests that test the
-%% interface of the timer module.
+%% reasonable on different machines; therefore the test can sometimes
+%% fail, even though the timer module is ok.
 
 suite() -> [{ct_hooks,[ts_install_cth]}].
 
@@ -89,10 +79,7 @@ report_result(Error) -> ?line test_server:fail(Error).
 big_test(N) ->
     C = start_collect(),
     system_time(), system_time(), system_time(),
-    A1 = element(2, erlang:now()),
-    A2 = A1 * 3,
-    A3 = element(3, erlang:now()),
-    random:seed(A1, A2, A3),
+    random:seed(erlang:timestamp()),
     random:uniform(100),random:uniform(100),random:uniform(100),
 
     big_loop(C, N, []),
@@ -146,7 +133,7 @@ big_loop(C, N, Pids) ->
 	    %%Pids2=Pids1,
 
 	    %% wait a little while
-	    timer:sleep(random:uniform(200)*10),
+	    timer:sleep(random:uniform(200)*3),
 
 	    %% spawn zero, one or two nrev to get some load ;-/
 	    Pids3 = start_nrev(Pids2, random:uniform(100)),
@@ -166,14 +153,14 @@ start_nrev(Pids, _N) ->
     
 
 start_after_test(Pids, C, 1) ->
-    TO1 = random:uniform(100)*100,
+    TO1 = random:uniform(100)*47,
     [s_a_t(C, TO1)|Pids];
 start_after_test(Pids, C, 2) ->
-    TO1 = random:uniform(100)*100,
-    TO2 = TO1 div random:uniform(3) + 200,
+    TO1 = random:uniform(100)*47,
+    TO2 = TO1 div random:uniform(3) + 101,
     [s_a_t(C, TO1),s_a_t(C, TO2)|Pids];
 start_after_test(Pids, C, N) ->
-    TO1 = random:uniform(100)*100,
+    TO1 = random:uniform(100)*47,
     start_after_test([s_a_t(C, TO1)|Pids], C, N-1).
 
 s_a_t(C, TimeOut) ->
@@ -199,7 +186,7 @@ a_t(C, TimeOut) ->
 
 maybe_start_i_test(Pids, C, 1) ->
     %% ok do it
-    TOI = random:uniform(100)*100,
+    TOI = random:uniform(53)*49,
     CountI = random:uniform(10) + 3,                      % at least 4 times
     [spawn_link(timer_SUITE, i_t, [C, TOI, CountI])|Pids];
 maybe_start_i_test(Pids, _C, _) ->
@@ -374,9 +361,7 @@ res_combine({error,Es}, [{error,E}|T]) ->
 
 
 system_time() ->
-    %%element(1, statistics(wall_clock)).
-    {M,S,U} = erlang:now(),
-    1000000000 * M + 1000 * S + (U div 1000).
+    erlang:monotonic_time(milli_seconds).
 
 %% ------------------------------------------------------- %%
 
diff --git a/lib/stdlib/test/timer_simple_SUITE.erl b/lib/stdlib/test/timer_simple_SUITE.erl
index dc751aad16..3c7e3c5f25 100644
--- a/lib/stdlib/test/timer_simple_SUITE.erl
+++ b/lib/stdlib/test/timer_simple_SUITE.erl
@@ -374,7 +374,6 @@ performance(Mod) ->
 big_test(M) ->
     Load_Pids = start_nrev(20, M),   % Increase if more load wanted :)
  
-    apply(M, sleep, [9000]),
     LPids = spawn_timers(5, M, 10000, 5),
 
     apply(M, sleep, [4000]),
@@ -483,8 +482,7 @@ append([],X) ->
 	X.
 
 system_time() ->    
-    {M,S,U} = erlang:now(),
-    1000000*(M*1000000 + S) + U.
+    erlang:monotonic_time(micro_seconds).
 
 %% ------------------------------------------------------- %%
 
diff --git a/lib/stdlib/test/unicode_SUITE.erl b/lib/stdlib/test/unicode_SUITE.erl
index 10b29d0d28..9f5d485df6 100644
--- a/lib/stdlib/test/unicode_SUITE.erl
+++ b/lib/stdlib/test/unicode_SUITE.erl
@@ -29,7 +29,13 @@
 	 random_lists/1,
 	 roundtrips/1,
 	 latin1/1,
-	 exceptions/1, binaries_errors/1]).
+	 exceptions/1,
+	 binaries_errors_limit/1,
+	 ex_binaries_errors_utf8/1,
+	 ex_binaries_errors_utf16_little/1,
+	 ex_binaries_errors_utf16_big/1,
+	 ex_binaries_errors_utf32_little/1,
+	 ex_binaries_errors_utf32_big/1]).
 	 
 init_per_testcase(Case, Config) when is_atom(Case), is_list(Config) ->
     Dog=?t:timetrap(?t:minutes(20)),
@@ -44,10 +50,17 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
 all() -> 
     [utf8_illegal_sequences_bif,
      utf16_illegal_sequences_bif, random_lists, roundtrips,
-     latin1, exceptions, binaries_errors].
+     latin1, exceptions,
+     binaries_errors_limit,
+     {group,binaries_errors}].
 
 groups() -> 
-    [].
+    [{binaries_errors,[parallel],
+      [ex_binaries_errors_utf8,
+       ex_binaries_errors_utf16_little,
+       ex_binaries_errors_utf16_big,
+       ex_binaries_errors_utf32_little,
+       ex_binaries_errors_utf32_big]}].
 
 init_per_suite(Config) ->
     Config.
@@ -61,15 +74,11 @@ init_per_group(_GroupName, Config) ->
 end_per_group(_GroupName, Config) ->
     Config.
 
-binaries_errors(Config) when is_list(Config) ->
+binaries_errors_limit(Config) when is_list(Config) ->
     setlimit(10),
     ex_binaries_errors_utf8(Config),
     setlimit(default),
-    ex_binaries_errors_utf8(Config),
-    ex_binaries_errors_utf16_little(Config),
-    ex_binaries_errors_utf16_big(Config),
-    ex_binaries_errors_utf32_little(Config),
-    ex_binaries_errors_utf32_big(Config).
+    ok.
     
 ex_binaries_errors_utf8(Config) when is_list(Config) ->
     %% Original smoke test, we should not forget the original offset...
@@ -78,8 +87,9 @@ ex_binaries_errors_utf8(Config) when is_list(Config) ->
     %% Now, try with longer binary (trapping)
     BrokenPart = list_to_binary(lists:seq(128,255)),
     BrokenSz = byte_size(BrokenPart),
+    Seq255 = lists:seq(1,255),
     [ begin
-	  OKList = lists:flatten(lists:duplicate(N,lists:seq(1,255))),
+	  OKList = lists:flatten(lists:duplicate(N,Seq255)),
 	  OKBin = unicode:characters_to_binary(OKList),
 	  OKLen = length(OKList),
 	  %% Copy to avoid that the binary get's writable
@@ -102,109 +112,84 @@ ex_binaries_errors_utf8(Config) when is_list(Config) ->
     ok.
 
 ex_binaries_errors_utf16_little(Config) when is_list(Config) ->
-    BrokenPart = << <<X:16/little>> || X <- lists:seq(16#DC00,16#DFFF) >>,
-    BrokenSz = byte_size(BrokenPart),
-    [ begin
-	  OKList = lists:flatten(lists:duplicate(N,lists:seq(1,255))),
-	  OKBin = unicode:characters_to_binary(OKList,unicode,{utf16,little}),
-	  OKLen = length(OKList),
-	  %% Copy to avoid that the binary get's writable
-	  PartlyBroken = binary:copy(<<OKBin/binary, BrokenPart/binary>>),
-	  PBSz = byte_size(PartlyBroken),
-	  {error,OKList,DeepBrokenPart} = 
-	      unicode:characters_to_list(PartlyBroken,{utf16,little}),
-	  BrokenPart = iolist_to_binary(DeepBrokenPart),
-	  [ begin
-		NewList = lists:nthtail(X, OKList),
-		NewSz = byte_size(unicode:characters_to_binary(NewList,unicode,{utf16,little})) + 
-		    BrokenSz,
-		Chomped = binary:part(PartlyBroken,PBSz - NewSz, NewSz),
-		true = (binary:referenced_byte_size(Chomped) =:= PBSz),
-		{error,NewList,DeepBrokenPart2} =  
-		    unicode:characters_to_list(Chomped,{utf16,little}),
-		BrokenPart = iolist_to_binary(DeepBrokenPart2)
-	    end || X <- lists:seq(1,OKLen) ]
-      end || N <- lists:seq(1,16,3) ],
-    ok.
+    ex_binaries_errors_utf16(little).
+
 ex_binaries_errors_utf16_big(Config) when is_list(Config) ->
-    BrokenPart = << <<X:16/big>> || X <- lists:seq(16#DC00,16#DFFF) >>,
+    ex_binaries_errors_utf16(big).
+
+ex_binaries_errors_utf16(Endian) ->
+    BrokenSeq = lists:seq(16#DC00, 16#DFFF),
+    BrokenPart = case Endian of
+		     little ->
+			 << <<X:16/little>> || X <- BrokenSeq >>;
+		     big ->
+			 << <<X:16/big>> || X <- BrokenSeq >>
+		 end,
     BrokenSz = byte_size(BrokenPart),
+    Seq255 = lists:seq(1, 255),
     [ begin
-	  OKList = lists:flatten(lists:duplicate(N,lists:seq(1,255))),
-	  OKBin = unicode:characters_to_binary(OKList,unicode,{utf16,big}),
-	  OKLen = length(OKList),
-	  %% Copy to avoid that the binary get's writable
-	  PartlyBroken = binary:copy(<<OKBin/binary, BrokenPart/binary>>),
+	  OKList = lists:append(lists:duplicate(N, Seq255)),
+	  OKBin = unicode:characters_to_binary(OKList, unicode, {utf16,Endian}),
+	  PartlyBroken = iolist_to_binary([OKBin,BrokenPart]),
 	  PBSz = byte_size(PartlyBroken),
 	  {error,OKList,DeepBrokenPart} = 
-	      unicode:characters_to_list(PartlyBroken,{utf16,big}),
+	      unicode:characters_to_list(PartlyBroken, {utf16,Endian}),
 	  BrokenPart = iolist_to_binary(DeepBrokenPart),
-	  [ begin
-		NewList = lists:nthtail(X, OKList),
-		NewSz = byte_size(unicode:characters_to_binary(NewList,unicode,{utf16,big})) + 
-		    BrokenSz,
-		Chomped = binary:part(PartlyBroken,PBSz - NewSz, NewSz),
-		true = (binary:referenced_byte_size(Chomped) =:= PBSz),
-		{error,NewList,DeepBrokenPart2} =  
-		    unicode:characters_to_list(Chomped,{utf16,big}),
-		BrokenPart = iolist_to_binary(DeepBrokenPart2)
-	    end || X <- lists:seq(1,OKLen) ]
-      end || N <- lists:seq(1,16,3) ],
+	  utf16_inner_loop(OKList, BrokenPart, BrokenSz,
+			   PartlyBroken, PBSz, Endian)
+      end || N <- lists:seq(1, 16, 3) ],
+    ok.
+
+utf16_inner_loop([_|List], BrokenPart, BrokenSz, PartlyBroken, PBSz, Endian) ->
+    Sz = length(List)*2 + BrokenSz,
+    Chomped = binary:part(PartlyBroken, PBSz - Sz, Sz),
+    true = binary:referenced_byte_size(Chomped) =:= PBSz,
+    {error,List,DeepBrokenPart} =
+	unicode:characters_to_list(Chomped, {utf16,Endian}),
+    BrokenPart = iolist_to_binary(DeepBrokenPart),
+    utf16_inner_loop(List, BrokenPart, BrokenSz, PartlyBroken, PBSz, Endian);
+utf16_inner_loop([], _, _, _, _, _) ->
     ok.
     
 ex_binaries_errors_utf32_big(Config) when is_list(Config) ->
-    BrokenPart = << <<X:32/big>> || X <- lists:seq(16#DC00,16#DFFF) >>,
-    BrokenSz = byte_size(BrokenPart),
-    [ begin
-	  OKList = lists:flatten(lists:duplicate(N,lists:seq(1,255))),
-	  OKBin = unicode:characters_to_binary(OKList,unicode,{utf32,big}),
-	  OKLen = length(OKList),
-	  %% Copy to avoid that the binary get's writable
-	  PartlyBroken = binary:copy(<<OKBin/binary, BrokenPart/binary>>),
-	  PBSz = byte_size(PartlyBroken),
-	  {error,OKList,DeepBrokenPart} = 
-	      unicode:characters_to_list(PartlyBroken,{utf32,big}),
-	  BrokenPart = iolist_to_binary(DeepBrokenPart),
-	  [ begin
-		NewList = lists:nthtail(X, OKList),
-		NewSz = byte_size(unicode:characters_to_binary(NewList,unicode,{utf32,big})) + 
-		    BrokenSz,
-		Chomped = binary:part(PartlyBroken,PBSz - NewSz, NewSz),
-		true = (binary:referenced_byte_size(Chomped) =:= PBSz),
-		{error,NewList,DeepBrokenPart2} =  
-		    unicode:characters_to_list(Chomped,{utf32,big}),
-		BrokenPart = iolist_to_binary(DeepBrokenPart2)
-	    end || X <- lists:seq(1,OKLen) ]
-      end || N <- lists:seq(1,16,3) ],
-    ok.
+    ex_binaries_errors_utf32(big).
     
 ex_binaries_errors_utf32_little(Config) when is_list(Config) ->
-    BrokenPart = << <<X:32/little>> || X <- lists:seq(16#DC00,16#DFFF) >>,
+    ex_binaries_errors_utf32(little).
+
+ex_binaries_errors_utf32(Endian) ->
+    BrokenSeq = lists:seq(16#DC00, 16#DFFF),
+    BrokenPart = case Endian of
+		     little ->
+			 << <<X:32/little>> || X <- BrokenSeq >>;
+		     big ->
+			 << <<X:32/big>> || X <- BrokenSeq >>
+		 end,
     BrokenSz = byte_size(BrokenPart),
+    Seq255 = lists:seq(1, 255),
     [ begin
-	  OKList = lists:flatten(lists:duplicate(N,lists:seq(1,255))),
-	  OKBin = unicode:characters_to_binary(OKList,unicode,{utf32,little}),
-	  OKLen = length(OKList),
-	  %% Copy to avoid that the binary get's writable
-	  PartlyBroken = binary:copy(<<OKBin/binary, BrokenPart/binary>>),
+	  OKList = lists:append(lists:duplicate(N, Seq255)),
+	  OKBin = unicode:characters_to_binary(OKList, unicode, {utf32,Endian}),
+	  PartlyBroken = iolist_to_binary([OKBin,BrokenPart]),
 	  PBSz = byte_size(PartlyBroken),
 	  {error,OKList,DeepBrokenPart} = 
-	      unicode:characters_to_list(PartlyBroken,{utf32,little}),
+	      unicode:characters_to_list(PartlyBroken, {utf32,Endian}),
 	  BrokenPart = iolist_to_binary(DeepBrokenPart),
-	  [ begin
-		NewList = lists:nthtail(X, OKList),
-		NewSz = byte_size(unicode:characters_to_binary(NewList,unicode,{utf32,little})) + 
-		    BrokenSz,
-		Chomped = binary:part(PartlyBroken,PBSz - NewSz, NewSz),
-		true = (binary:referenced_byte_size(Chomped) =:= PBSz),
-		{error,NewList,DeepBrokenPart2} =  
-		    unicode:characters_to_list(Chomped,{utf32,little}),
-		BrokenPart = iolist_to_binary(DeepBrokenPart2)
-	    end || X <- lists:seq(1,OKLen) ]
-      end || N <- lists:seq(1,16,3) ],
+	  utf32_inner_loop(OKList, BrokenPart, BrokenSz,
+			   PartlyBroken, PBSz, Endian)
+      end || N <- lists:seq(1, 16, 3) ],
     ok.
     
-
+utf32_inner_loop([_|List], BrokenPart, BrokenSz, PartlyBroken, PBSz, Endian) ->
+    Sz = length(List)*4 + BrokenSz,
+    Chomped = binary:part(PartlyBroken, PBSz - Sz, Sz),
+    true = binary:referenced_byte_size(Chomped) =:= PBSz,
+    {error,List,DeepBrokenPart} =
+	unicode:characters_to_list(Chomped, {utf32,Endian}),
+    BrokenPart = iolist_to_binary(DeepBrokenPart),
+    utf32_inner_loop(List, BrokenPart, BrokenSz, PartlyBroken, PBSz, Endian);
+utf32_inner_loop([], _, _, _, _, _) ->
+    ok.
 
 exceptions(Config) when is_list(Config) ->
     setlimit(10),
diff --git a/lib/stdlib/test/zip_SUITE.erl b/lib/stdlib/test/zip_SUITE.erl
index a57641ef62..08243f7c4f 100644
--- a/lib/stdlib/test/zip_SUITE.erl
+++ b/lib/stdlib/test/zip_SUITE.erl
@@ -23,7 +23,7 @@
          bad_zip/1, unzip_from_binary/1, unzip_to_binary/1,
          zip_to_binary/1,
          unzip_options/1, zip_options/1, list_dir_options/1, aliases/1,
-         openzip_api/1, zip_api/1, unzip_jar/1,
+         openzip_api/1, zip_api/1, open_leak/1, unzip_jar/1,
          compress_control/1,
 	 foldl/1]).
 
@@ -38,7 +38,7 @@ all() ->
     [borderline, atomic, bad_zip, unzip_from_binary,
      unzip_to_binary, zip_to_binary, unzip_options,
      zip_options, list_dir_options, aliases, openzip_api,
-     zip_api, unzip_jar, compress_control, foldl].
+     zip_api, open_leak, unzip_jar, compress_control, foldl].
 
 groups() -> 
     [].
@@ -84,7 +84,7 @@ borderline_test(Size, TempDir) ->
     io:format("Testing size ~p", [Size]),
 
     %% Create a file and archive it.
-    {_, _, X0} = erlang:now(),
+    {_, _, X0} = erlang:timestamp(),
     file:write_file(Name, random_byte_list(X0, Size)),
     {ok, Archive} = zip:zip(Archive, [Name]),
     ok = file:delete(Name),
@@ -318,8 +318,46 @@ zip_api(Config) when is_list(Config) ->
     %% Clean up.
     delete_files([Names]),
 
+   ok.
+
+open_leak(doc) ->
+    ["Test that zip doesn't leak processes and ports where the "
+     "controlling process dies without closing an zip opened with "
+     "zip:zip_open/1."];
+open_leak(suite) -> [];
+open_leak(Config) when is_list(Config) ->
+    %% Create a zip archive
+    Zip = "zip.zip",
+    {ok, Zip} = zip:zip(Zip, [], []),
+
+    %% Open archive in a another process that dies immediately.
+    ZipSrv = spawn_zip(Zip, [memory]),
+
+    %% Expect the ZipSrv process to die soon after.
+    true = spawned_zip_dead(ZipSrv),
+
+    %% Clean up.
+    delete_files([Zip]),
+
     ok.
 
+spawn_zip(Zip, Options) ->
+    Self = self(),
+    spawn(fun() -> Self ! zip:zip_open(Zip, Options) end),
+    receive
+        {ok, ZipSrv} ->
+            ZipSrv
+    end.
+
+spawned_zip_dead(ZipSrv) ->
+    Ref = monitor(process, ZipSrv),
+    receive
+        {'DOWN', Ref, _, ZipSrv, _} ->
+            true
+    after 1000 ->
+            false
+    end.
+
 unzip_options(doc) ->
     ["Test options for unzip, only cwd and file_list currently"];
 unzip_options(suite) ->
@@ -568,7 +606,7 @@ zip_to_binary(Config) when is_list(Config) ->
 aliases(doc) ->
     ["Test using the aliases, extract/2, table/2 and create/3"];
 aliases(Config) when is_list(Config) ->
-    {_, _, X0} = erlang:now(),
+    {_, _, X0} = erlang:timestamp(),
     Size = 100,
     B = list_to_binary(random_byte_list(X0, Size)),
     %% create
diff --git a/lib/stdlib/vsn.mk b/lib/stdlib/vsn.mk
index f57f31c8de..a1f2a946b1 100644
--- a/lib/stdlib/vsn.mk
+++ b/lib/stdlib/vsn.mk
@@ -1 +1 @@
-STDLIB_VSN = 2.4
+STDLIB_VSN = 2.5
diff --git a/lib/syntax_tools/doc/overview.edoc b/lib/syntax_tools/doc/overview.edoc
index df02ad0b3a..3111633a99 100644
--- a/lib/syntax_tools/doc/overview.edoc
+++ b/lib/syntax_tools/doc/overview.edoc
@@ -2,79 +2,34 @@
 
 	Syntax Tools overview page
 
-
 @author Richard Carlsson <[email protected]>
-@copyright 1997-2004 Richard Carlsson
+@copyright 1997-2014 Richard Carlsson
 @version {@version}
-@title Erlang Syntax Tools
+@title Erlang Syntax and Metaprogramming tools
 
-@doc This package contains modules for handling abstract Erlang syntax
-trees, in a way that is compatible with the "parse trees" of the
-standard library module `erl_parse', together with utilities for reading
-source files in unusual ways and pretty-printing syntax trees. Also
-included is an amazing module merger and renamer called Igor, as well as
-an automatic code-cleaner.
+@doc This package contains modules for handling abstract syntax trees (ASTs)
+in Erlang, in a way that is compatible with the "abstract format" parse
+trees of the stdlib module `erl_parse', together with utilities for reading
+source files, {@link erl_prettypr. pretty-printing syntax trees}, {@link
+igor. merging and renaming modules}, {@link erl_tidy. cleaning up obsolete
+constructs}, and doing {@link merl. metaprogramming} in Erlang.
 
-<p>The abstract layer (defined in {@link erl_syntax}) is nicely
+The abstract layer (defined in {@link erl_syntax}) is nicely
 structured and the node types are context-independent. The layer makes
 it possible to transparently attach source-code comments and user
 annotations to nodes of the tree. Using the abstract layer makes
 applications less sensitive to changes in the {@link //stdlib/erl_parse}
-data structures, only requiring the {@link erl_syntax} module to be
-up-to-date.</p>
+data structures, only requiring the `erl_syntax' module to be up-to-date.
 
-<p>The pretty printer {@link erl_prettypr} is implemented on top of the
+The pretty printer {@link erl_prettypr} is implemented on top of the
 library module {@link prettypr}: this is a powerful and flexible generic
-pretty printing library, which is also distributed separately.</p>
-
-<p>For a short demonstration of parsing and pretty-printing, simply
-compile the included module <a
-href="../examples/demo.erl"><code>demo.erl</code></a>, and execute
-<code>demo:run()</code> from the Erlang shell. It will compile the
-remaining modules and give you further instructions.</p>
-
-<p>Also try the {@link erl_tidy} module, as follows:
-<pre>
-    erl_tidy:dir("any-erlang-source-dir", [test, old_guard_tests]).</pre>
-("<code>test</code>" assures that no files are modified).</p>
-
-<p>News in 1.4:
-<ul>
-  <li>Added support for {@link erl_syntax:cond_expr/1. cond-expressions},
-      {@link erl_syntax:try_expr/4. try-expressions} and
-      {@link erl_syntax:class_qualifier/2. class-qualifier patterns}.</li>
-  <li>Added support for parameterized modules.</li>
-  <li>{@link igor. Igor} is officially included.</li>
-  <li>Quick-parse functionality added to {@link epp_dodger}.</li>
-</ul>
-</p>
-
-<p>News in 1.3:
-<ul>
-  <li>Added support for qualified names (as used by "packages").</li>
-  <li>Various internal changes.</li>
-</ul>
-</p>
+pretty printing library, which is also distributed separately.
 
-<p>News in 1.2:
-<ul>
-  <li>HTML Documentation (generated with EDoc).</li>
-  <li>A few bug fixes and some minor interface changes (sorry for any
-    inconvenience).</li>
-</ul>
-</p>
+For a short demonstration of parsing and pretty-printing, simply
+compile the included module <a href="../examples/demo.erl">`demo.erl'</a>,
+and execute `demo:run()' from the Erlang shell. It will compile the
+remaining modules and give you further instructions.
 
-<p>News in 1.1:
-<ul>
-  <li>Module {@link erl_tidy}: check or tidy either a single module, or a
-    whole directory tree recursively. Rewrites and reformats the code
-    without losing comments or expanding macros. Safe mode allows
-    generating reports without modifying files.</li>
-  <li>Module {@link erl_syntax_lib}: contains support functions for easier
-    analysis of the source code structure.</li>
-  <li>Module {@link epp_dodger}: Bypasses the Erlang preprocessor - avoids
-    macro expansion, file inclusion, conditional compilation, etc.
-    Allows you to find/modify particular definitions/applications of
-    macros, and other things previously not possible.</li>
-</ul>
-</p>
+Also try the {@link erl_tidy} module, as follows:
+```erl_tidy:dir("any-erlang-source-dir", [test, old_guard_tests]).'''
+(the `test' option assures that no files are modified).
diff --git a/lib/syntax_tools/doc/src/Makefile b/lib/syntax_tools/doc/src/Makefile
index 2502bf877a..b7c599a9b9 100644
--- a/lib/syntax_tools/doc/src/Makefile
+++ b/lib/syntax_tools/doc/src/Makefile
@@ -50,6 +50,8 @@ XML_REF3_FILES = \
 	erl_syntax_lib.xml \
 	erl_tidy.xml \
 	igor.xml \
+	merl.xml \
+	merl_transform.xml \
 	prettypr.xml
 
 XML_PART_FILES = part.xml part_notes.xml
diff --git a/lib/syntax_tools/doc/src/ref_man.xml b/lib/syntax_tools/doc/src/ref_man.xml
index 598f656011..2b114c8528 100644
--- a/lib/syntax_tools/doc/src/ref_man.xml
+++ b/lib/syntax_tools/doc/src/ref_man.xml
@@ -29,12 +29,11 @@
   </header>
   <description>
     <p><em>Syntax_Tools</em> contains modules for handling abstract
-      Erlang syntax trees, in a way that is compatible with the "parse
-      trees" of the STDLIB module <c>erl_parse</c>, together with
-      utilities for reading source files in unusual ways and
-      pretty-printing syntax trees. Also included is an amazing module
-      merger and renamer called Igor, as well as an automatic
-      code-cleaner.</p>
+      Erlang syntax trees, in a way that is compatible with the "external
+      format" parse trees of the STDLIB module <c>erl_parse</c>, together
+      with utilities for reading source files, pretty-printing syntax trees,
+      merging and renaming modules, cleaning up obsolete constructs, and
+      doing metaprogramming in Erlang.</p>
   </description>
   <xi:include href="epp_dodger.xml"/>
   <xi:include href="erl_comment_scan.xml"/>
@@ -44,6 +43,8 @@
   <xi:include href="erl_syntax_lib.xml"/>
   <xi:include href="erl_tidy.xml"/>
   <xi:include href="igor.xml"/>
+  <xi:include href="merl.xml"/>
+  <xi:include href="merl_transform.xml"/>
   <xi:include href="prettypr.xml"/>
 </application>
 
diff --git a/lib/syntax_tools/examples/merl/Makefile b/lib/syntax_tools/examples/merl/Makefile
new file mode 100644
index 0000000000..13a9703733
--- /dev/null
+++ b/lib/syntax_tools/examples/merl/Makefile
@@ -0,0 +1,22 @@
+EBIN=../../ebin
+INCLUDES=../../include
+SOURCES=merl_build.erl lisp.erl lispc.erl basic.erl basicc.erl
+HEADERS=$(INCLUDES)/merl.hrl
+OBJECTS=$(SOURCES:%.erl=%.beam)
+ERLC_FLAGS=+debug_info -I$(INCLUDES) -pa $(EBIN)
+
+all: $(OBJECTS) test
+
+%.beam: %.erl $(HEADERS) Makefile
+	erlc $(ERLC_FLAGS) -o ./ $<
+
+# additional dependencies due to the parse transform
+lispc.beam basicc.beam: $(EBIN)/merl_transform.beam $(EBIN)/merl.beam
+
+clean:
+	-rm -f $(OBJECTS)
+
+test:
+	erl -noshell -pa $(EBIN) \
+	 -eval 'eunit:test([lisp, lispc, basic, basicc],[])' \
+	 -s init stop
diff --git a/lib/syntax_tools/examples/merl/basic.erl b/lib/syntax_tools/examples/merl/basic.erl
new file mode 100644
index 0000000000..9030059d11
--- /dev/null
+++ b/lib/syntax_tools/examples/merl/basic.erl
@@ -0,0 +1,77 @@
+%% ---------------------------------------------------------------------
+%% Licensed under the Apache License, Version 2.0 (the "License"); you may
+%% not use this file except in compliance with the License. You may obtain
+%% a copy of the License at <http://www.apache.org/licenses/LICENSE-2.0>
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% @author Richard Carlsson <[email protected]>
+%% @copyright 2012 Richard Carlsson
+%% @doc Trivial Basic interpreter in Erlang
+
+-module(basic).
+
+-export([run/2]).
+
+-include_lib("eunit/include/eunit.hrl").
+
+-define(INTERPRETED, true).
+-include("basic_test.erl").
+
+run(N, Prog) ->
+    ets:new(var, [private, named_table]),
+    ets:new(line, [private, named_table, ordered_set]),
+    lists:foreach(fun (T) -> ets:insert(line, T) end, Prog),
+    goto(N).
+
+stop(N) ->
+    ets:delete(var),
+    ets:delete(line),
+    N.
+
+goto('$end_of_table') -> stop(0);
+goto(L) ->
+    L1 = ets:next(line, L),
+    %% user-supplied line numbers might not exist
+    case ets:lookup(line, L) of
+        [{_, X}] ->
+            stmt(X, L1);
+        _ ->
+            goto(L1)
+    end.
+
+stmt({print, S, As}, L) -> io:format(S, [expr(A) || A <- As]), goto(L);
+stmt({set, V, X}, L) -> ets:insert(var, {V, expr(X)}), goto(L);
+stmt({goto, X}, _L) -> goto(expr(X));
+stmt({stop, X}, _L) -> stop(expr(X));
+stmt({iff, X, A, B}, _L) ->
+    case expr(X) of
+        0 -> goto(B);
+        _ -> goto(A)
+    end.
+
+expr(X) when is_number(X) ; is_list(X) ->
+    X;
+expr(X) when is_atom(X) ->
+    case ets:lookup(var, X) of
+        [] -> 0;
+        [{_,V}] -> V
+    end;
+expr({plus, X, Y}) ->
+    expr(X) + expr(Y);
+expr({equal, X, Y}) ->
+    bool(expr(X) == expr(Y));
+expr({gt, X, Y}) ->
+    bool(expr(X) > expr(Y));
+expr({knot, X}) ->
+    case expr(X) of
+        0 -> 1;
+        _ -> 0
+    end.
+
+bool(true) -> 1;
+bool(false) -> 0.
diff --git a/lib/syntax_tools/examples/merl/basic_test.erl b/lib/syntax_tools/examples/merl/basic_test.erl
new file mode 100644
index 0000000000..ff35de6325
--- /dev/null
+++ b/lib/syntax_tools/examples/merl/basic_test.erl
@@ -0,0 +1,77 @@
+%% ---------------------------------------------------------------------
+%% Licensed under the Apache License, Version 2.0 (the "License"); you may
+%% not use this file except in compliance with the License. You may obtain
+%% a copy of the License at <http://www.apache.org/licenses/LICENSE-2.0>
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% @author Richard Carlsson <[email protected]>
+%% @copyright 2012 Richard Carlsson
+%% @doc Tests. For including in another module.
+
+%-module(basic_test).
+%-import(basic, run/1)
+
+-export([basic_fib/1]).
+
+-include_lib("eunit/include/eunit.hrl").
+
+basics_test_() ->
+    [?_assertEqual(42, run(1,[{1,{stop, 42}}])),
+     ?_assertEqual("hello", run(1,[{1,{stop,"hello"}}])),
+     ?_assertEqual(0, run(1,[{1,{print, "hello ~w", [42]}}])),
+     ?_assertEqual(5, run(1,[{1,{stop, {plus, 2, 3}}}])),
+     ?_assertEqual(5, run(1,[{1,{stop,{plus, 8, -3}}}])),
+     ?_assertEqual(0, run(1,[{1,{stop,{equal, 0, 1}}}])),
+     ?_assertEqual(1, run(1,[{1,{stop,{equal, 1, 1}}}])),
+     ?_assertEqual(0, run(1,[{1,{stop,{gt, 0, 1}}}])),
+     ?_assertEqual(0, run(1,[{1,{stop,{gt, 1, 1}}}])),
+     ?_assertEqual(1, run(1,[{1,{stop,{gt, 2, 1}}}])),
+     ?_assertEqual(0, run(1,[{1,{stop,{knot, 42}}}])),
+     ?_assertEqual(1, run(1,[{1,{stop,{knot, 0}}}])),
+     ?_assertEqual(42, run(1,[{1,{set, x, 42}}, {2,{stop,x}}])),
+     ?_assertEqual(17, run(1,[{1,{iff, 1, 2, 3}},
+                              {2,{stop, 17}},
+                              {3,{stop, 42}}])),
+     ?_assertEqual(42, run(1,[{1,{iff, 0, 2, 3}},
+                              {2,{stop, 17}},
+                              {3,{stop, 42}}])),
+     ?_assertEqual(17, run(1,[{1,{iff, 1, 2, 3}},
+                              {2,{stop, 17}},
+                              {3,{stop, -1}}])),
+     ?_assertEqual(42, run(1,[{1,{iff, 0, 2, 3}},
+                              {2,{stop, -1}},
+                              {3,{stop, 42}}]))
+
+
+    ].
+
+
+fib_test_() ->
+    [?_assertEqual(fib(N), basic_fib(N)) || N <- lists:seq(1,15)
+    ].
+
+
+fib(N) when N > 1 ->
+    fib(N-1) + fib(N-2);
+fib(_) ->
+    1.
+
+basic_fib(N) ->
+    run(1,
+        [{1,{set,x,0}},
+         {2,{set,a,1}},
+         {3,{set,b,0}},
+         {10,{iff, {equal, x, N}, 20, 30}},
+         {20,{stop,a}},
+         {30,{print,"~w, ~w, ~w\n",[x,a,b]}},
+         {31,{set,t,a}},
+         {32,{set,a,{plus,a,b}}},
+         {33,{set,b,t}},
+         {34,{set,x,{plus,x,1}}},
+         {40,{goto,10}}
+         ]).
diff --git a/lib/syntax_tools/examples/merl/basicc.erl b/lib/syntax_tools/examples/merl/basicc.erl
new file mode 100644
index 0000000000..531ac51538
--- /dev/null
+++ b/lib/syntax_tools/examples/merl/basicc.erl
@@ -0,0 +1,149 @@
+%% ---------------------------------------------------------------------
+%% Licensed under the Apache License, Version 2.0 (the "License"); you may
+%% not use this file except in compliance with the License. You may obtain
+%% a copy of the License at <http://www.apache.org/licenses/LICENSE-2.0>
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% @author Richard Carlsson <[email protected]>
+%% @copyright 2012 Richard Carlsson
+%% @doc Basic compiler in Erlang.
+
+-module(basicc).
+
+-export([run/2, make_lines/1, bool/1]).
+
+-include_lib("eunit/include/eunit.hrl").
+
+-define(INTERPRETED, true).
+-include("basic_test.erl").
+
+-include("merl.hrl").
+
+run(N, Prog) ->
+    compile(Prog, tmp),
+    tmp:run(N, Prog).
+
+make_lines(Prog) ->
+    ets:new(line, [private, named_table, ordered_set]),
+    lists:foreach(fun ({L,_}) -> ets:insert(line, {L,label(L)}) end, Prog).
+
+compile(Prog, ModName) ->
+    make_lines(Prog),
+    Fs0 = lists:map(fun ({L, X}) ->
+                            {true, label(L),
+                             case stmt(X) of
+                                 {Stmt, false} ->
+                                     [?Q("() -> _@Stmt")];
+                                 {Stmt, true} ->
+                                     Next = case ets:next(line, L) of
+                                                '$end_of_table' ->
+                                                    ?Q("stop(0)");
+                                                L1 ->
+                                                    Label = label(L1),
+                                                    ?Q("_@Label@()")
+                                            end,
+                                     [?Q("() -> _@Stmt, _@Next")]
+                             end}
+                    end, Prog),
+    ets:delete(line),
+    Run = ?Q(["(N, Prog) ->",
+              " ets:new(var, [private, named_table]),",
+              " basicc:make_lines(Prog),",
+              " goto(N)"
+             ]),
+    Stop = ?Q(["(R) ->",
+               " ets:delete(var),",
+               " ets:delete(line),",
+               " R"
+              ]),
+    Goto =  ?Q(["(L) ->",
+                " case ets:lookup(line, L) of",
+                "  [{_, X}] -> apply(tmp, X, []);",
+                "  _ ->",
+                "   case ets:next(line, L) of",
+                "    '$end_of_table' -> stop(0);",
+                "    L1 -> goto(L1)",
+                "   end",
+                " end"]),
+    Fs = [{true, run, [Run]},
+          {false, stop, [Stop]},
+          {true, goto, [Goto]}
+          | Fs0],
+    Forms = merl_build:module_forms(
+              lists:foldl(fun ({X, Name, Cs}, S) ->
+                                  merl_build:add_function(X, Name, Cs, S)
+                          end,
+                          merl_build:init_module(ModName),
+                          Fs)),
+    %% %% Write source to file for debugging
+    %% file:write_file(lists:concat([ModName, "_gen.erl"]),
+    %%                 erl_prettypr:format(erl_syntax:form_list(Forms),
+    %%                                     [{paper,160},{ribbon,80}])),
+    merl:compile_and_load(Forms, [verbose]).
+
+label(L) ->
+    list_to_atom("label_" ++ integer_to_list(L)).
+
+stmt({print, S, As}) ->
+    Exprs = [expr(A) || A <- As],
+    {[?Q(["io:format(_@S@, [_@Exprs])"])], true};
+stmt({set, V, X}) ->
+    Expr = expr(X),
+    {[?Q(["ets:insert(var, {_@V@, _@Expr})"])], true};
+stmt({goto, X}) ->
+    {[jump(X)], false};
+stmt({stop, X}) ->
+    Expr = expr(X),
+    {[?Q(["stop(_@Expr)"])], false};
+stmt({iff, X, A, B}) ->
+    Cond = expr(X),
+    True = jump(A),
+    False = jump(B),
+    {?Q(["case _@Cond of",
+         "  0 -> _@False;",
+         "  _ -> _@True",
+         "end"]),
+     false}.
+
+jump(X) ->
+    case ets:lookup(line, X) of
+        [{_, F}] ->
+            ?Q(["_@F@()"]);
+        true ->
+            Expr = expr(X),
+            [?Q(["goto(_@Expr)"])]
+    end.
+
+expr(X) when is_number(X) ; is_list(X) ->
+    ?Q("_@X@");
+expr(X) when is_atom(X) ->
+    ?Q(["case ets:lookup(var, _@X@) of",
+        " [] -> 0;",
+        " [{_,V}] -> V",
+        "end"]);
+expr({plus, X, Y}) ->
+    ExprX = expr(X),
+    ExprY = expr(Y),
+    ?Q("_@ExprX + _@ExprY");
+expr({equal, X, Y}) ->
+    ExprX = expr(X),
+    ExprY = expr(Y),
+    ?Q("basicc:bool(_@ExprX == _@ExprY)");
+expr({gt, X, Y}) ->
+    ExprX = expr(X),
+    ExprY = expr(Y),
+    ?Q("basicc:bool(_@ExprX > _@ExprY)");
+expr({knot, X}) ->
+    Expr = expr(X),
+    ?Q(["case _@Expr of",
+        " 0 -> 1;",
+        " _ -> 0",
+        "end"]).
+
+bool(true) -> 1;
+bool(false) -> 0.
diff --git a/lib/syntax_tools/examples/merl/lisp.erl b/lib/syntax_tools/examples/merl/lisp.erl
new file mode 100644
index 0000000000..371dc6b261
--- /dev/null
+++ b/lib/syntax_tools/examples/merl/lisp.erl
@@ -0,0 +1,160 @@
+%% ---------------------------------------------------------------------
+%% Licensed under the Apache License, Version 2.0 (the "License"); you may
+%% not use this file except in compliance with the License. You may obtain
+%% a copy of the License at <http://www.apache.org/licenses/LICENSE-2.0>
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% @author Richard Carlsson <[email protected]>
+%% @copyright 2012 Richard Carlsson
+%% @doc Trivial Lisp interpreter in Erlang.
+
+-module(lisp).
+
+-export([eval/1]).
+
+-export([init/0, equal/2, gt/2, knot/1]).
+
+-record(st, {env}).
+
+-define(INTERPRETED, true).
+-include("lisp_test.erl").
+
+eval(P) ->
+    {X, _} = eval(P, init()),
+    X.
+
+init() ->
+    Env = [{print, {builtin, fun do_print/2}}
+           ,{list, {builtin, fun do_list/2}}
+           ,{apply, {builtin, fun do_apply/2}}
+           ,{plus, {builtin, fun do_plus/2}}
+           ,{equal, {builtin, fun do_equal/2}}
+           ,{gt, {builtin, fun do_gt/2}}
+           ,{knot, {builtin, fun do_knot/2}}
+           ,{y, y()}
+          ],
+    #st{env=dict:from_list(Env)}.
+
+eval([lambda, Ps, B], #st{env=E}=St) when is_list(Ps) ->
+    case lists:all(fun is_atom/1, Ps) andalso
+        (length(Ps) =:= length(lists:usort(Ps))) of
+        true -> {{lambda, Ps, B, E}, St};
+        false -> throw(bad_lambda)
+    end;
+eval([lambda | _], _) ->
+    throw(bad_lambda);
+eval([def, A, V, B], #st{env=E0}=St) when is_atom(A) ->
+    {V1, St1} = eval(V, St),
+    E1 = bind(A, V1, E0),
+    {X, St2} = eval(B, St1#st{env=E1}),
+    {X, St2#st{env=E0}};
+eval([def | _], _) ->
+    throw(bad_def);
+eval([quote, A], St) ->
+    {A, St};
+eval([quote | _], _) ->
+    throw(bad_quote);
+eval([iff, X, A, B], St) ->
+    case eval(X, St) of
+        {[], St1} -> eval(B, St1);
+        {_, St1} -> eval(A, St1)
+    end;
+eval([do], _St0) ->
+    throw(bad_do);
+eval([do | As], St0) ->
+    lists:foldl(fun (X, {_,St}) -> eval(X, St) end, {[],St0}, As);
+eval([_|_]=L, St) ->
+    {[F | As], St1} = lists:mapfoldl(fun eval/2, St, L),
+    call(F, As, St1);
+eval(A, St) when is_atom(A) ->
+    {deref(A, St), St};
+eval(C, St) ->
+    {C, St}.
+
+%% UTILITY FUNCTIONS
+
+deref(A, #st{env=E}) ->
+    case dict:find(A, E) of
+        {ok, V} -> V;
+        error -> throw({undefined, A})
+    end.
+
+bind(A, V, E) ->
+    dict:store(A, V, E).
+
+bind_args([P | Ps], [A | As], E) ->
+    bind_args(Ps, As, dict:store(P, A, E));
+bind_args([], [], E) ->
+    E;
+bind_args(_, _, _) ->
+    throw(bad_arity).
+
+call({lambda, Ps, B, E}, As, #st{env=E0}=St) ->
+    {X, St1} = eval(B, St#st{env=bind_args(Ps, As, E)}),
+    {X, St1#st{env=E0}};
+call({builtin, F}, As, St) ->
+    F(As, St);
+call(X, _, _) ->
+    throw({bad_fun, X}).
+
+bool(true) -> 1;
+bool(false) -> [].
+
+%% BUILTINS
+
+y() ->
+    {Y, _} = eval([lambda, [f],
+                   [[lambda, [x], [f, [lambda, [y], [[x, x], y]]]],
+                    [lambda, [x], [f, [lambda, [y], [[x, x], y]]]]]],
+                  #st{env=dict:new()}),
+    Y.
+
+do_print([S | Xs], St) ->
+    io:format(S, Xs),
+    {[], St};
+do_print(_, _) ->
+    throw(bad_print).
+
+do_list(As, St) ->
+    {As, St}.
+
+do_apply([F, As], St) ->
+    call(F, As, St);
+do_apply(_, _) ->
+    throw(bad_apply).
+
+do_plus([X, Y], St) when is_number(X), is_number(Y) ->
+    {X + Y, St};
+do_plus(As, _) ->
+    throw({bad_plus, As}).
+
+do_equal([X, Y], St) ->
+    {equal(X, Y), St};
+do_equal(As, _) ->
+    throw({bad_equal, As}).
+
+equal(X, Y) ->
+    bool(X =:= Y).
+
+do_gt([X, Y], St) ->
+    {gt(X, Y), St};
+do_gt(As, _) ->
+    throw({bad_gt, As}).
+
+gt(X, Y) ->
+    bool(X > Y).
+
+do_knot([X], St) ->
+    {knot(X), St};
+do_knot(As, _) ->
+    throw({bad_gt, As}).
+
+knot([]) ->
+    1;
+knot(_) ->
+    [].
diff --git a/lib/syntax_tools/examples/merl/lisp_test.erl b/lib/syntax_tools/examples/merl/lisp_test.erl
new file mode 100644
index 0000000000..cab8134b8f
--- /dev/null
+++ b/lib/syntax_tools/examples/merl/lisp_test.erl
@@ -0,0 +1,98 @@
+%% ---------------------------------------------------------------------
+%% Licensed under the Apache License, Version 2.0 (the "License"); you may
+%% not use this file except in compliance with the License. You may obtain
+%% a copy of the License at <http://www.apache.org/licenses/LICENSE-2.0>
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% @author Richard Carlsson <[email protected]>
+%% @copyright 2012 Richard Carlsson
+%% @doc Tests. For including in another module.
+
+%-module(lisp_test).
+%-import(lisp, eval/1)
+
+-export([fib/1, lisp_fib/1]).
+
+-include_lib("eunit/include/eunit.hrl").
+
+basics_test_() ->
+    [?_assertEqual(42, eval(42)),
+     ?_assertEqual("hello", eval([quote, "hello"])),
+     ?_assertEqual(print, eval([quote, print])),
+     ?_assertMatch([17,[1,2],42], eval([list,17,[list,1,2],42])),
+     ?_assertEqual([], eval([print, [quote, "hello ~w"], [list, 42]])),
+     ?_assertEqual(5, eval([plus, 2, 3])),
+     ?_assertEqual(5, eval([plus, 8, -3])),
+     ?_assertEqual([], eval([equal, 0, 1])),
+     ?_assertEqual(1, eval([equal, 1, 1])),
+     ?_assertEqual([], eval([gt, 0, 1])),
+     ?_assertEqual([], eval([gt, 1, 1])),
+     ?_assertEqual(1, eval([gt, 2, 1])),
+     ?_assertEqual([], eval([knot, 42])),
+     ?_assertEqual(1, eval([knot, []])),
+     ?_assertEqual(42, eval([do, 17, 42])),
+     ?_assertEqual([], eval([apply, print, [quote, ["~p", [42]]]])),
+     ?_assertEqual(42, eval([iff, [], 17, 42])),
+     ?_assertEqual(17, eval([iff, 1, 17, 42])),
+     ?_assertEqual(42, eval([iff, [], [apply], 42])),
+     ?_assertEqual(17, eval([iff, 1, 17, [apply]])),
+     ?_assertEqual(17, eval([def, foo, 17, foo])),
+     ?_assertEqual(17, eval([def, bar, 42, [def, foo, 17, foo]])),
+     ?_assertEqual(42, eval([def, bar, 42, [def, foo, 17, bar]])),
+     ?_assertEqual(17, eval([def, foo, 42, [def, foo, 17, foo]]))
+    ].
+
+-ifdef(INTERPRETED).
+interpreter_basics_test_() ->
+    [?_assertThrow({undefined, foo}, eval(foo)),
+     ?_assertMatch({builtin,_}, eval(print)),
+     ?_assertThrow(bad_do, eval([do])),
+     ?_assertThrow(bad_apply, eval([apply])),
+     ?_assertThrow({undefined, foo}, eval([def, bar, 17, foo]))
+    ].
+
+interpreter_lambda_test_() ->
+    [?_assertMatch({lambda,_,_,_}, eval([lambda, [], 42])),
+     ?_assertMatch({lambda,_,_,_}, eval([lambda, [x], x])),
+     ?_assertMatch({lambda,_,_,_}, eval([lambda, [x,y], 42]))
+    ].
+-endif.
+
+lambda_test_() ->
+    [?_assertThrow(bad_lambda, eval([lambda])),
+     ?_assertThrow(bad_lambda, eval([lambda, []])),
+     ?_assertThrow(bad_lambda, eval([lambda, [], 17, 42])),
+     ?_assertThrow(bad_lambda, eval([lambda, 17, 42])),
+     ?_assertThrow(bad_lambda, eval([lambda, [17], 42])),
+     ?_assertThrow(bad_lambda, eval([lambda, [foo, foo], 42])),
+     ?_assertEqual(42, eval([[lambda, [x], x], 42])),
+     ?_assertEqual([42, 17], eval([[lambda, [x], [list, x, 17]], 42])),
+     ?_assertEqual([42, 17], eval([def, f, [def, y, 42,
+                                            [lambda, [x], [list, y, x]]],
+                                   [f, 17]]))
+    ].
+
+fib_test_() ->
+    [?_assertEqual(fib(N), lisp_fib(N)) || N <- lists:seq(1,15)
+    ].
+
+
+fib(N) when N > 1 ->
+    fib(N-1) + fib(N-2);
+fib(_) ->
+    1.
+
+lisp_fib(N) ->
+    eval([def, fib,
+          [y, [lambda, [f], [lambda, [x],
+                             [iff, [gt, x, 1],
+                              [plus, [f, [plus,x,-1]], [f, [plus,x,-2]]],
+                              1]
+                            ]]],
+          [fib, N]
+         ]).
diff --git a/lib/syntax_tools/examples/merl/lispc.erl b/lib/syntax_tools/examples/merl/lispc.erl
new file mode 100644
index 0000000000..97072cdab7
--- /dev/null
+++ b/lib/syntax_tools/examples/merl/lispc.erl
@@ -0,0 +1,102 @@
+%% ---------------------------------------------------------------------
+%% Licensed under the Apache License, Version 2.0 (the "License"); you may
+%% not use this file except in compliance with the License. You may obtain
+%% a copy of the License at <http://www.apache.org/licenses/LICENSE-2.0>
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% @author Richard Carlsson <[email protected]>
+%% @copyright 2012 Richard Carlsson
+%% @doc Lisp compiler in Erlang.
+
+-module(lispc).
+
+-export([eval/1]).
+
+-record(st, {}).
+
+-include("lisp_test.erl").
+
+-include("merl.hrl").
+
+eval(Lisp) ->
+    compile(Lisp, tmp),
+    tmp:eval().
+
+compile(Lisp, ModName) ->
+    {Code, _} = gen(Lisp, #st{}),
+    Main = ?Q(["() ->",
+               "  __print = fun (S, Xs) -> io:format(S,Xs), [] end,",
+               "  __apply = fun erlang:apply/2,",
+               "  __plus = fun erlang:'+'/2,",
+               "  __equal = fun lisp:equal/2,",
+               "  __gt = fun lisp:gt/2,",
+               "  __knot = fun lisp:knot/1,",
+               "  __y = fun (F) ->",
+               "          (fun (X) -> F(fun (Y) -> (X(X))(Y) end) end)",
+               "           (fun (X) -> F(fun (Y) -> (X(X))(Y) end) end)",
+               "     end,",
+               "  _@Code"]),
+    Forms = merl_build:module_forms(
+              merl_build:add_function(true, eval, [Main],
+                                      merl_build:init_module(ModName))),
+    %% %% Write source to file for debugging
+    %% file:write_file(lists:concat([ModName, "_gen.erl"]),
+    %%                 erl_prettypr:format(erl_syntax:form_list(Forms),
+    %%                                     [{paper,160},{ribbon,80}])),
+    merl:compile_and_load(Forms, [verbose]).
+
+var(Atom) ->
+    merl:var(list_to_atom("__" ++ atom_to_list(Atom))).
+
+gen([lambda, Ps, B], St) when is_list(Ps) ->
+    case lists:all(fun is_atom/1, Ps) andalso
+        (length(Ps) =:= length(lists:usort(Ps))) of
+        true ->
+            Vars = [var(P) || P <- Ps],
+            {Body, St1} = gen(B, St),
+            {?Q("fun (_@Vars) -> _@Body end"), St1};
+        false ->
+            throw(bad_lambda)
+    end;
+gen([lambda | _], _) ->
+    throw(bad_lambda);
+gen([def, A, V, B], St) when is_atom(A) ->
+    Var = var(A),
+    {Val, St1} = gen(V, St),
+    {Body, St2} = gen(B, St1),
+    {?Q("(fun (_@Var) -> _@Body end)(_@Val)"), St2};
+gen([def | _], _) ->
+    throw(bad_def);
+gen([quote, A], St) ->
+    {merl:term(A), St};
+gen([quote | _], _) ->
+    throw(bad_quote);
+gen([iff, X, A, B], St) ->
+    {Cond, St1} = gen(X, St),
+    {True, St2} = gen(A, St1),
+    {False, St3} = gen(B, St2),
+    {?Q(["case _@Cond of",
+         "  [] -> _@False;",
+         "  _ -> _@True",
+         "end"]),
+     St3};
+gen([do], _) ->
+    throw(bad_do);
+gen([do | As], St0) ->
+    {Body, St1} = lists:mapfoldl(fun gen/2, St0, As),
+    {?Q("begin _@Body end"), St1};
+gen([list | As], St0) ->
+    {Elem, St1} = lists:mapfoldl(fun gen/2, St0, As),
+    {?Q("[ _@Elem ]"), St1};
+gen([_|_]=L, St) ->
+    {[F | As], St1} = lists:mapfoldl(fun gen/2, St, L),
+    {?Q("((_@F)(_@As))"), St1};
+gen(A, St) when is_atom(A) ->
+    {var(A), St};
+gen(C, St) ->
+    {merl:term(C), St}.
diff --git a/lib/syntax_tools/examples/merl/merl_build.erl b/lib/syntax_tools/examples/merl/merl_build.erl
new file mode 100644
index 0000000000..c539f8e2af
--- /dev/null
+++ b/lib/syntax_tools/examples/merl/merl_build.erl
@@ -0,0 +1,104 @@
+%% ---------------------------------------------------------------------
+%% Licensed under the Apache License, Version 2.0 (the "License"); you may
+%% not use this file except in compliance with the License. You may obtain
+%% a copy of the License at <http://www.apache.org/licenses/LICENSE-2.0>
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% @author Richard Carlsson <[email protected]>
+%% @copyright 2012 Richard Carlsson
+%% @doc Making it simple to build a module with merl
+
+-module(merl_build).
+
+-export([init_module/1, module_forms/1, add_function/4, add_record/3,
+         add_import/3, add_attribute/3, set_file/2]).
+
+-import(merl, [term/1]).
+
+-include("merl.hrl").
+
+-type filename() :: string().
+
+-record(module, { name          :: atom()
+                , file          :: filename()
+                , exports=[]    :: [{atom(), integer()}]
+                , imports=[]    :: [{atom(), [{atom(), integer()}]}]
+                , attributes=[] :: [{filename(), atom(), [term()]}]
+                , records=[]    :: [{filename(), atom(),
+                                     [{atom(), merl:tree()}]}]
+                , functions=[]  :: [{filename(), atom(), [merl:tree()]}]
+                }).
+
+%% TODO: init module from a list of forms (from various sources)
+
+%% @doc Create a new module representation, using the given module name.
+init_module(Name) when is_atom(Name) ->
+    %% use the module name as the default file name - better than nothing
+    #module{name=Name, file=atom_to_list(Name)}.
+
+%% @doc Get the list of syntax tree forms for a module representation. This can
+%% be passed to compile/2.
+module_forms(#module{name=Name,
+                     exports=Xs,
+                     imports=Is,
+                     records=Rs,
+                     attributes=As,
+                     functions=Fs})
+  when is_atom(Name), Name =/= undefined ->
+    Module = ?Q("-module('@Name@')."),
+    Exported = [erl_syntax:arity_qualifier(term(N), term(A))
+                || {N,A} <- ordsets:from_list(Xs)],
+    Export = ?Q("-export(['@_Exported'/1])."),
+    Imports = [?Q("-import('@M@', ['@_NAs'/1]).")
+               || {M, Ns} <- Is,
+                  NAs <- [[erl_syntax:arity_qualifier(term(N), term(A))
+                           || {N,A} <- ordsets:from_list(Ns)]]
+              ],
+    Attrs = [?Q("-file(\"'@File@\",1). -'@N@'('@T@').")
+             || {File, N, T} <- lists:reverse(As)],
+    Records = [?Q("-file(\"'@File@\",1). -record('@N@',{'@_RFs'=[]}).")
+               || {File, N, Es} <- lists:reverse(Rs),
+                  RFs <- [[erl_syntax:record_field(term(F), V)
+                           || {F,V} <- Es]]
+              ],
+    Functions = [?Q("-file(\"'@File@\",1). '@_F'() -> [].")
+                 || {File, N, Cs} <- lists:reverse(Fs),
+                    F <- [erl_syntax:function(term(N), Cs)]],
+    lists:flatten([Module, Export, Imports, Attrs, Records, Functions]).
+
+%% @doc Set the source file name for all subsequently added functions,
+%% records, and attributes.
+set_file(Filename, #module{}=M) ->
+    M#module{file=filename:flatten(Filename)}.
+
+%% @doc Add a function to a module representation.
+add_function(Exported, Name, Clauses,
+             #module{file=File, exports=Xs, functions=Fs}=M)
+  when is_boolean(Exported), is_atom(Name), Clauses =/= [] ->
+    Arity = length(erl_syntax:clause_patterns(hd(Clauses))),
+    Xs1 = case Exported of
+              true -> [{Name,Arity} | Xs];
+              false -> Xs
+          end,
+    M#module{exports=Xs1, functions=[{File, Name, Clauses} | Fs]}.
+
+%% @doc Add a record declaration to a module representation.
+add_record(Name, Fields, #module{file=File, records=Rs}=M)
+  when is_atom(Name) ->
+    M#module{records=[{File, Name, Fields} | Rs]}.
+
+%% @doc Add a "wild" attribute, such as `-compile(Opts)' to a module
+%% representation. Note that such attributes can only have a single argument.
+add_attribute(Name, Term, #module{file=File, attributes=As}=M)
+  when is_atom(Name) ->
+    M#module{attributes=[{File, Name, Term} | As]}.
+
+%% @doc Add an import declaration to a module representation.
+add_import(From, Names, #module{imports=Is}=M)
+  when is_atom(From), is_list(Names) ->
+    M#module{imports=[{From, Names} | Is]}.
diff --git a/lib/syntax_tools/include/merl.hrl b/lib/syntax_tools/include/merl.hrl
new file mode 100644
index 0000000000..e44a78dece
--- /dev/null
+++ b/lib/syntax_tools/include/merl.hrl
@@ -0,0 +1,29 @@
+%% ---------------------------------------------------------------------
+%% Header file for merl
+%%
+%% Licensed under the Apache License, Version 2.0 (the "License"); you may
+%% not use this file except in compliance with the License. You may obtain
+%% a copy of the License at <http://www.apache.org/licenses/LICENSE-2.0>
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+
+-ifndef(MERL_HRL).
+
+
+%% Quoting a piece of code
+-define(Q(Text), merl:quote(?LINE, Text)).
+
+%% Quasi-quoting code, substituting metavariables listed in Env
+-define(Q(Text, Env), merl:qquote(?LINE, Text, Env)).
+
+
+-ifndef(MERL_NO_TRANSFORM).
+-compile({parse_transform, merl_transform}).
+-endif.
+
+
+-endif.
diff --git a/lib/syntax_tools/src/Makefile b/lib/syntax_tools/src/Makefile
index c9fbad8f9a..2e91adf8af 100644
--- a/lib/syntax_tools/src/Makefile
+++ b/lib/syntax_tools/src/Makefile
@@ -22,6 +22,9 @@ RELSYSDIR = $(RELEASE_PATH)/lib/syntax_tools-$(VSN)
 #
 
 EBIN = ../ebin
+INCLUDE=../include
+
+ERL_COMPILE_FLAGS += -pa $(EBIN) -pa ./ -I$(INCLUDE)
 
 ifeq ($(NATIVE_LIBS_ENABLED),yes)
 ERL_COMPILE_FLAGS += +native
@@ -30,10 +33,15 @@ ERL_COMPILE_FLAGS += +nowarn_shadow_vars +warn_unused_import -Werror # +warn_mis
 
 SOURCES=erl_syntax.erl erl_prettypr.erl erl_syntax_lib.erl	\
 	erl_comment_scan.erl erl_recomment.erl erl_tidy.erl	\
-	epp_dodger.erl prettypr.erl igor.erl
+	epp_dodger.erl prettypr.erl igor.erl \
+	merl.erl merl_transform.erl
+
+INCLUDE_FILES = merl.hrl
 
 OBJECTS=$(SOURCES:%.erl=$(EBIN)/%.$(EMULATOR)) $(APP_TARGET) $(APPUP_TARGET)
 
+INCLUDE_DELIVERABLES = $(INCLUDE_FILES:%=$(INCLUDE)/%)
+
 APP_FILE= syntax_tools.app
 APP_SRC= $(APP_FILE).src
 APP_TARGET= $(EBIN)/$(APP_FILE)
@@ -52,6 +60,7 @@ all: $(OBJECTS)
 
 
 clean:
+	rm -f ./merl_transform.beam
 	rm -f $(OBJECTS)
 	rm -f core *~
 
@@ -64,6 +73,15 @@ realclean: clean
 $(EBIN)/%.$(EMULATOR):%.erl
 	$(erlc_verbose)erlc -W $(ERL_COMPILE_FLAGS) -o$(EBIN) $<
 
+# special rules and dependencies to apply the transform to itself
+$(EBIN)/merl_transform.beam: $(EBIN)/merl.beam ./merl_transform.beam \
+			../include/merl.hrl \
+			$(EBIN)/erl_syntax.beam $(EBIN)/erl_syntax_lib.beam
+./merl_transform.beam: ./merl_transform.erl $(EBIN)/merl.beam \
+			../include/merl.hrl
+	$(V_ERLC) -DMERL_NO_TRANSFORM $(ERL_COMPILE_FLAGS) -o ./ $<
+
+
 # ----------------------------------------------------
 # Special Build Targets
 # ----------------------------------------------------
@@ -84,6 +102,8 @@ release_spec: opt
 	$(INSTALL_DATA) $(OBJECTS) "$(RELSYSDIR)/ebin"
 	$(INSTALL_DIR) "$(RELSYSDIR)/src"
 	$(INSTALL_DATA) $(SOURCES) "$(RELSYSDIR)/src"
+	$(INSTALL_DIR) "$(RELSYSDIR)/include"
+	$(INSTALL_DATA) $(INCLUDE_DELIVERABLES) "$(RELSYSDIR)/include"
 
 release_docs_spec:
 
diff --git a/lib/syntax_tools/src/epp_dodger.erl b/lib/syntax_tools/src/epp_dodger.erl
index 3ca7a8197e..39c522fd11 100644
--- a/lib/syntax_tools/src/epp_dodger.erl
+++ b/lib/syntax_tools/src/epp_dodger.erl
@@ -454,7 +454,7 @@ io_error(L, Desc) ->
     {L, ?MODULE, Desc}.
 
 start_pos([T | _Ts], _L) ->
-    element(2, T);
+    erl_anno:line(element(2, T));
 start_pos([], L) ->
     L.
 
diff --git a/lib/syntax_tools/src/erl_prettypr.erl b/lib/syntax_tools/src/erl_prettypr.erl
index 877675772f..81272e62de 100644
--- a/lib/syntax_tools/src/erl_prettypr.erl
+++ b/lib/syntax_tools/src/erl_prettypr.erl
@@ -50,8 +50,7 @@
               | fun((erl_syntax:syntaxTree(), _, _) -> prettypr:document()).
 -type clause_t() :: 'case_expr' | 'cond_expr' | 'fun_expr'
                   | 'if_expr' | 'receive_expr' | 'try_expr'
-                  | {'function', prettypr:document()}
-                  | {'rule', prettypr:document()}.
+                  | {'function', prettypr:document()}.
 
 -record(ctxt, {prec = 0           :: integer(),
 	       sub_indent = 2     :: non_neg_integer(),
@@ -587,8 +586,6 @@ lay_2(Node, Ctxt) ->
 		    make_case_clause(D1, D2, D3, Ctxt);
 		try_expr ->
 		    make_case_clause(D1, D2, D3, Ctxt);
-		{rule, N} ->
-		    make_rule_clause(N, D1, D2, D3, Ctxt);
 		undefined ->
 		    %% If a clause is formatted out of context, we
 		    %% use a "fun-expression" clause style.
@@ -851,14 +848,10 @@ lay_2(Node, Ctxt) ->
 		   floating(text(".")),
 		   lay(erl_syntax:record_access_field(Node),
 		       set_prec(Ctxt, PrecR))),
-	    D3 = case erl_syntax:record_access_type(Node) of
-		     none ->
-			 D2;
-		     T ->
-			 beside(beside(floating(text("#")),
-				       lay(T, reset_prec(Ctxt))),
-				D2)
-		 end,
+	    T = erl_syntax:record_access_type(Node),
+	    D3 = beside(beside(floating(text("#")),
+                               lay(T, reset_prec(Ctxt))),
+                        D2),
 	    maybe_parentheses(beside(D1, D3), Prec, Ctxt);
 
 	record_expr ->
@@ -926,15 +919,6 @@ lay_2(Node, Ctxt) ->
             D2 = lay(erl_syntax:map_field_exact_value(Node), Ctxt1),
             par([D1, floating(text(":=")), D2], Ctxt1#ctxt.break_indent);
 
-	rule ->
-	    %% Comments on the name will be repeated; cf.
-	    %% `function'.
-	    Ctxt1 = reset_prec(Ctxt),
-	    D1 = lay(erl_syntax:rule_name(Node), Ctxt1),
-	    D2 = lay_clauses(erl_syntax:rule_clauses(Node),
-			     {rule, D1}, Ctxt1),
-	    beside(D2, floating(text(".")));
-
 	size_qualifier ->
 	    Ctxt1 = set_prec(Ctxt, max_prec()),
 	    D1 = lay(erl_syntax:size_qualifier_body(Node), Ctxt1),
@@ -1073,10 +1057,6 @@ make_fun_clause_head(N, P, Ctxt) ->
 	    beside(N, D)
     end.
 
-make_rule_clause(N, P, G, B, Ctxt) ->
-    D = make_fun_clause_head(N, P, Ctxt),
-    append_rule_body(B, append_guard(G, D, Ctxt), Ctxt).
-
 make_case_clause(P, G, B, Ctxt) ->
     append_clause_body(B, append_guard(G, P, Ctxt), Ctxt).
 
@@ -1092,9 +1072,6 @@ make_if_clause(_P, G, B, Ctxt) ->
 append_clause_body(B, D, Ctxt) ->
     append_clause_body(B, D, floating(text(" ->")), Ctxt).
 
-append_rule_body(B, D, Ctxt) ->
-    append_clause_body(B, D, floating(text(" :-")), Ctxt).
-
 append_clause_body(B, D, S, Ctxt) ->
     sep([beside(D, S), nest(Ctxt#ctxt.break_indent, B)]).
 
diff --git a/lib/syntax_tools/src/erl_recomment.erl b/lib/syntax_tools/src/erl_recomment.erl
index 7b2f9f7adb..72e1e2d2f5 100644
--- a/lib/syntax_tools/src/erl_recomment.erl
+++ b/lib/syntax_tools/src/erl_recomment.erl
@@ -123,7 +123,6 @@ recomment_forms(Tree, Cs, Insert) ->
 	form_list ->
 	    Tree1 = erl_syntax:flatten_form_list(Tree),
 	    Node = build_tree(Tree1),
-
 	    %% Here we make a small assumption about the substructure of
 	    %% a `form_list' tree: it has exactly one group of subtrees.
 	    [Node1] = node_subtrees(Node),
@@ -753,7 +752,13 @@ get_line(Node) ->
 	{_, L, _} when is_integer(L) ->
 	    L;
 	Pos ->
-	    exit({bad_position, Pos})
+            try erl_anno:line(Pos) of
+                Line ->
+                    Line
+            catch
+                _:_ ->
+                    exit({bad_position, Pos})
+            end
     end.
 
 
diff --git a/lib/syntax_tools/src/erl_syntax.erl b/lib/syntax_tools/src/erl_syntax.erl
index 40372a2106..3f2a3e05dd 100644
--- a/lib/syntax_tools/src/erl_syntax.erl
+++ b/lib/syntax_tools/src/erl_syntax.erl
@@ -254,7 +254,6 @@
 	 receive_expr_action/1,
 	 receive_expr_clauses/1,
 	 receive_expr_timeout/1,
-	 record_access/2,
 	 record_access/3,
 	 record_access_argument/1,
 	 record_access_field/1,
@@ -271,10 +270,6 @@
 	 record_index_expr/2,
 	 record_index_expr_field/1,
 	 record_index_expr_type/1,
-	 rule/2,
-	 rule_arity/1,
-	 rule_clauses/1,
-	 rule_name/1,
 	 size_qualifier/2,
 	 size_qualifier_argument/1,
 	 size_qualifier_body/1,
@@ -472,19 +467,16 @@
 %%   <td>record_field</td>
 %%  </tr><tr>
 %%   <td>record_index_expr</td>
-%%   <td>rule</td>
 %%   <td>size_qualifier</td>
 %%   <td>string</td>
-%%  </tr><tr>
 %%   <td>text</td>
+%%  </tr><tr>
 %%   <td>try_expr</td>
 %%   <td>tuple</td>
 %%   <td>underscore</td>
-%%  </tr><tr>
 %%   <td>variable</td>
+%%  </tr><tr>
 %%   <td>warning_marker</td>
-%%   <td></td>
-%%   <td></td>
 %%  </tr>
 %% </table></center>
 %%
@@ -540,7 +532,6 @@
 %% @see record_expr/2
 %% @see record_field/2
 %% @see record_index_expr/2
-%% @see rule/2
 %% @see size_qualifier/2
 %% @see string/1
 %% @see text/1
@@ -607,10 +598,8 @@ type(Node) ->
 	{record, _, _, _, _} -> record_expr;
 	{record, _, _, _} -> record_expr;
 	{record_field, _, _, _, _} -> record_access;
-	{record_field, _, _, _} -> record_access;
 	{record_index, _, _, _} -> record_index_expr;
 	{remote, _, _, _} -> module_qualifier;
-	{rule, _, _, _, _} -> rule;
 	{'try', _, _, _, _, _} -> try_expr;
 	{tuple, _, _} -> tuple;
 	_ ->
@@ -693,10 +682,9 @@ is_leaf(Node) ->
 %%   <td>`comment'</td>
 %%   <td>`error_marker'</td>
 %%   <td>`eof_marker'</td>
-%%   <td>`form_list'</td>
 %%  </tr><tr>
+%%   <td>`form_list'</td>
 %%   <td>`function'</td>
-%%   <td>`rule'</td>
 %%   <td>`warning_marker'</td>
 %%   <td>`text'</td>
 %%  </tr>
@@ -709,7 +697,6 @@ is_leaf(Node) ->
 %% @see error_marker/1
 %% @see form_list/1
 %% @see function/2
-%% @see rule/2
 %% @see warning_marker/1
 
 -spec is_form(syntaxTree()) -> boolean().
@@ -722,7 +709,6 @@ is_form(Node) ->
 	eof_marker -> true;
 	error_marker -> true;
 	form_list -> true;
-	rule -> true;
 	warning_marker -> true;
 	text -> true;
 	_ -> false
@@ -3323,6 +3309,11 @@ attribute_arguments(Node) ->
 		    [set_pos(
 		       list(unfold_function_names(Data, Pos)),
 		       Pos)];
+		optional_callbacks ->
+                    D = try list(unfold_function_names(Data, Pos))
+                        catch _:_ -> abstract(Data)
+                        end,
+		    [set_pos(D, Pos)];
 		import ->
 		    {Module, Imports} = Data,
 		    [set_pos(atom(Module), Pos),
@@ -3475,7 +3466,6 @@ module_qualifier_body(Node) ->
 %% @see function_clauses/1
 %% @see function_arity/1
 %% @see is_form/1
-%% @see rule/2
 
 %% Don't use the name 'function' for this record, to avoid confusion with
 %% the tuples on the form {function,Name,Arity} used by erl_parse.
@@ -4305,49 +4295,32 @@ record_index_expr_field(Node) ->
 
 
 %% =====================================================================
-%% @equiv record_access(Argument, none, Field)
-
--spec record_access(syntaxTree(), syntaxTree()) -> syntaxTree().
-
-record_access(Argument, Field) ->
-    record_access(Argument, none, Field).
-
-
-%% =====================================================================
-%% @doc Creates an abstract record field access expression. If
-%% `Type' is not `none', the result represents
-%% "<code><em>Argument</em>#<em>Type</em>.<em>Field</em></code>".
-%%
-%% If `Type' is `none', the result represents
-%% "<code><em>Argument</em>.<em>Field</em></code>". This is a special
-%% form only allowed within Mnemosyne queries.
+%% @doc Creates an abstract record field access expression. The result
+%% represents "<code><em>Argument</em>#<em>Type</em>.<em>Field</em></code>".
 %%
-%% @see record_access/2
 %% @see record_access_argument/1
 %% @see record_access_type/1
 %% @see record_access_field/1
 %% @see record_expr/3
 
 -record(record_access, {argument :: syntaxTree(),
-			type     :: 'none' | syntaxTree(),
+			type     :: syntaxTree(),
 			field    :: syntaxTree()}).
 
 %% type(Node) = record_access
 %% data(Node) = #record_access{argument :: Argument, type :: Type,
 %%			       field :: Field}
 %%
-%%	Argument = Field = syntaxTree()
-%%	Type = none | syntaxTree()
+%%	Argument = Type = Field = syntaxTree()
 %%
 %% `erl_parse' representation:
 %%
 %% {record_field, Pos, Argument, Type, Field}
-%% {record_field, Pos, Argument, Field}
 %%
 %%	Argument = Field = erl_parse()
 %%	Type = atom()
 
--spec record_access(syntaxTree(), 'none' | syntaxTree(), syntaxTree()) ->
+-spec record_access(syntaxTree(), syntaxTree(), syntaxTree()) ->
         syntaxTree().
 
 record_access(Argument, Type, Field) ->
@@ -4360,16 +4333,11 @@ revert_record_access(Node) ->
     Argument = record_access_argument(Node),
     Type = record_access_type(Node),
     Field = record_access_field(Node),
-    if Type =:= none ->
-	    {record_field, Pos, Argument, Field};
-       true ->
-	    case type(Type) of
-		atom ->
-		    {record_field, Pos,
-		     Argument, concrete(Type), Field};
-		_ ->
-		    Node
-	    end
+    case type(Type) of
+        atom ->
+            {record_field, Pos, Argument, concrete(Type), Field};
+        _ ->
+            Node
     end.
 
 
@@ -4382,8 +4350,6 @@ revert_record_access(Node) ->
 
 record_access_argument(Node) ->
     case unwrap(Node) of
-	{record_field, _, Argument, _} ->
-	    Argument;
 	{record_field, _, Argument, _, _} ->
 	    Argument;
 	Node1 ->
@@ -4392,21 +4358,14 @@ record_access_argument(Node) ->
 
 
 %% =====================================================================
-%% @doc Returns the type subtree of a `record_access' node,
-%% if any. If `Node' represents
-%% "<code><em>Argument</em>.<em>Field</em></code>", `none'
-%% is returned, otherwise if `Node' represents
-%% "<code><em>Argument</em>#<em>Type</em>.<em>Field</em></code>",
-%% `Type' is returned.
+%% @doc Returns the type subtree of a `record_access' node.
 %%
 %% @see record_access/3
 
--spec record_access_type(syntaxTree()) -> 'none' | syntaxTree().
+-spec record_access_type(syntaxTree()) -> syntaxTree().
 
 record_access_type(Node) ->
     case unwrap(Node) of
-	{record_field, _, _, _} ->
-	    none;
 	{record_field, Pos, _, Type, _} ->
 	    set_pos(atom(Type), Pos);
 	Node1 ->
@@ -4423,8 +4382,6 @@ record_access_type(Node) ->
 
 record_access_field(Node) ->
     case unwrap(Node) of
-	{record_field, _, _, Field} ->
-	    Field;
 	{record_field, _, _, _, Field} ->
 	    Field;
 	Node1 ->
@@ -4803,117 +4760,6 @@ binary_comp_body(Node) ->
 
 
 %% =====================================================================
-%% @doc Creates an abstract Mnemosyne rule. If `Clauses' is
-%% `[C1, ..., Cn]', the results represents
-%% "<code><em>Name</em> <em>C1</em>; ...; <em>Name</em>
-%% <em>Cn</em>.</code>". More exactly, if each `Ci'
-%% represents "<code>(<em>Pi1</em>, ..., <em>Pim</em>) <em>Gi</em> ->
-%% <em>Bi</em></code>", then the result represents
-%% "<code><em>Name</em>(<em>P11</em>, ..., <em>P1m</em>) <em>G1</em> :-
-%% <em>B1</em>; ...; <em>Name</em>(<em>Pn1</em>, ..., <em>Pnm</em>)
-%% <em>Gn</em> :- <em>Bn</em>.</code>". Rules are source code forms.
-%%
-%% @see rule_name/1
-%% @see rule_clauses/1
-%% @see rule_arity/1
-%% @see is_form/1
-%% @see function/2
-
--record(rule, {name :: syntaxTree(), clauses :: [syntaxTree()]}).
-
-%% type(Node) = rule
-%% data(Node) = #rule{name :: Name, clauses :: Clauses}
-%%
-%%	Name = syntaxTree()
-%%	Clauses = [syntaxTree()]
-%%
-%%	(See `function' for notes on why the arity is not stored.)
-%%
-%% `erl_parse' representation:
-%%
-%% {rule, Pos, Name, Arity, Clauses}
-%%
-%%	Name = atom()
-%%	Arity = integer()
-%%	Clauses = [Clause] \ []
-%%	Clause = {clause, ...}
-%%
-%%	where the number of patterns in each clause should be equal to
-%%	the integer `Arity'; see `clause' for documentation on
-%%	`erl_parse' clauses.
-
--spec rule(syntaxTree(), [syntaxTree()]) -> syntaxTree().
-
-rule(Name, Clauses) ->
-    tree(rule, #rule{name = Name, clauses = Clauses}).
-
-revert_rule(Node) ->
-    Name = rule_name(Node),
-    Clauses = [revert_clause(C) || C <- rule_clauses(Node)],
-    Pos = get_pos(Node),
-    case type(Name) of
-	atom ->
-	    A = rule_arity(Node),
-	    {rule, Pos, concrete(Name), A, Clauses};
-	_ ->
-	    Node
-    end.
-
-
-%% =====================================================================
-%% @doc Returns the name subtree of a `rule' node.
-%%
-%% @see rule/2
-
--spec rule_name(syntaxTree()) -> syntaxTree().
-
-rule_name(Node) ->
-    case unwrap(Node) of
-	{rule, Pos, Name, _, _} ->
-	    set_pos(atom(Name), Pos);
-	Node1 ->
-	    (data(Node1))#rule.name
-    end.
-
-%% =====================================================================
-%% @doc Returns the list of clause subtrees of a `rule' node.
-%%
-%% @see rule/2
-
--spec rule_clauses(syntaxTree()) -> [syntaxTree()].
-
-rule_clauses(Node) ->
-    case unwrap(Node) of
-	{rule, _, _, _, Clauses} ->
-	    Clauses;
-	Node1 ->
-	    (data(Node1))#rule.clauses
-    end.
-
-%% =====================================================================
-%% @doc Returns the arity of a `rule' node. The result is the
-%% number of parameter patterns in the first clause of the rule;
-%% subsequent clauses are ignored.
-%%
-%% An exception is thrown if `rule_clauses(Node)' returns
-%% an empty list, or if the first element of that list is not a syntax
-%% tree `C' of type `clause' such that
-%% `clause_patterns(C)' is a nonempty list.
-%%
-%% @see rule/2
-%% @see rule_clauses/1
-%% @see clause/3
-%% @see clause_patterns/1
-
--spec rule_arity(syntaxTree()) -> arity().
-
-rule_arity(Node) ->
-    %% Note that this never accesses the arity field of
-    %% `erl_parse' rule nodes.
-    length(clause_patterns(hd(rule_clauses(Node)))).
-
-
-%% =====================================================================
 %% @doc Creates an abstract generator. The result represents
 %% "<code><em>Pattern</em> &lt;- <em>Body</em></code>".
 %%
@@ -6135,6 +5981,13 @@ abstract_tail(H, T) ->
 %% {@link char/1} function to explicitly create an abstract
 %% character.)
 %%
+%% Note: `arity_qualifier' nodes are recognized. This is to follow The
+%% Erlang Parser when it comes to wild attributes: both {F, A} and F/A
+%% are recognized, which makes it possible to turn wild attributes
+%% into recognized attributes without at the same time making it
+%% impossible to compile files using the new syntax with the old
+%% version of the Erlang Compiler.
+%%
 %% @see abstract/1
 %% @see is_literal/1
 %% @see char/1
@@ -6184,6 +6037,20 @@ concrete(Node) ->
 					   {value, concrete(F), []}
 				   end, [], true),
 	    B;
+        arity_qualifier ->
+            A = erl_syntax:arity_qualifier_argument(Node),
+            case erl_syntax:type(A) of
+                integer ->
+                    F = erl_syntax:arity_qualifier_body(Node),
+                    case erl_syntax:type(F) of
+                        atom ->
+                            {F, A};
+                        _ ->
+                            erlang:error({badarg, Node})
+                    end;
+                _ ->
+                    erlang:error({badarg, Node})
+            end;
         _ ->
 	    erlang:error({badarg, Node})
     end.
@@ -6377,8 +6244,6 @@ revert_root(Node) ->
 	    revert_record_expr(Node);
 	record_index_expr ->
 	    revert_record_index_expr(Node);
-	rule ->
-	    revert_rule(Node);
 	string ->
 	    revert_string(Node);
 	try_expr ->
@@ -6635,15 +6500,9 @@ subtrees(T) ->
 			     receive_expr_action(T)]
 		    end;
 		record_access ->
-		    case record_access_type(T) of
-			none ->
-			    [[record_access_argument(T)],
-			     [record_access_field(T)]];
-			R ->
-			    [[record_access_argument(T)],
-			     [R],
-			     [record_access_field(T)]]
-		    end;
+                    [[record_access_argument(T)],
+                     [record_access_type(T)],
+                     [record_access_field(T)]];
 		record_expr ->
 		    case record_expr_argument(T) of
 			none ->
@@ -6664,8 +6523,6 @@ subtrees(T) ->
 		record_index_expr ->
 		    [[record_index_expr_type(T)],
 		     [record_index_expr_field(T)]];
-		rule ->
-		    [[rule_name(T)], rule_clauses(T)];
 		size_qualifier ->
 		    [[size_qualifier_body(T)],
 		     [size_qualifier_argument(T)]];
@@ -6760,8 +6617,6 @@ make_tree(parentheses, [[E]]) -> parentheses(E);
 make_tree(prefix_expr, [[F], [A]]) -> prefix_expr(F, A);
 make_tree(receive_expr, [C]) -> receive_expr(C);
 make_tree(receive_expr, [C, [E], A]) -> receive_expr(C, E, A);
-make_tree(record_access, [[E], [F]]) ->
-    record_access(E, F);
 make_tree(record_access, [[E], [T], [F]]) ->
     record_access(E, T, F);
 make_tree(record_expr, [[T], F]) -> record_expr(T, F);
@@ -6770,7 +6625,6 @@ make_tree(record_field, [[N]]) -> record_field(N);
 make_tree(record_field, [[N], [E]]) -> record_field(N, E);
 make_tree(record_index_expr, [[T], [F]]) ->
     record_index_expr(T, F);
-make_tree(rule, [[N], C]) -> rule(N, C);
 make_tree(size_qualifier, [[N], [A]]) -> size_qualifier(N, A);
 make_tree(try_expr, [B, C, H, A]) -> try_expr(B, C, H, A);
 make_tree(tuple, [E]) -> tuple(E).
diff --git a/lib/syntax_tools/src/erl_syntax_lib.erl b/lib/syntax_tools/src/erl_syntax_lib.erl
index 2f0488abec..5b5b18d15b 100644
--- a/lib/syntax_tools/src/erl_syntax_lib.erl
+++ b/lib/syntax_tools/src/erl_syntax_lib.erl
@@ -35,8 +35,7 @@
          analyze_function_name/1, analyze_implicit_fun/1,
          analyze_import_attribute/1, analyze_module_attribute/1,
          analyze_record_attribute/1, analyze_record_expr/1,
-         analyze_record_field/1, analyze_rule/1,
-         analyze_wild_attribute/1, annotate_bindings/1,
+         analyze_record_field/1, analyze_wild_attribute/1, annotate_bindings/1,
          annotate_bindings/2, fold/3, fold_subtrees/3, foldl_listlist/3,
          function_name_expansions/1, is_fail_expr/1, limit/2, limit/3,
          map/2, map_subtrees/2, mapfold/3, mapfold_subtrees/3,
@@ -527,8 +526,6 @@ vann(Tree, Env) ->
             vann_try_expr(Tree, Env);
         function ->
             vann_function(Tree, Env);
-        rule ->
-            vann_rule(Tree, Env);
         fun_expr ->
             vann_fun_expr(Tree, Env);
         list_comp ->
@@ -569,15 +566,6 @@ vann_function(Tree, Env) ->
     Bound = [],
     {ann_bindings(Tree1, Env, Bound, Free), Bound, Free}.
 
-vann_rule(Tree, Env) ->
-    Cs = erl_syntax:rule_clauses(Tree),
-    {Cs1, {_, Free}} = vann_clauses(Cs, Env),
-    N = erl_syntax:rule_name(Tree),
-    {N1, _, _} = vann(N, Env),
-    Tree1 = rewrite(Tree, erl_syntax:rule(N1, Cs1)),
-    Bound = [],
-    {ann_bindings(Tree1, Env, Bound, Free), Bound, Free}.
-
 vann_fun_expr(Tree, Env) ->
     Cs = erl_syntax:fun_expr_clauses(Tree),
     {Cs1, {_, Free}} = vann_clauses(Cs, Env),
@@ -946,7 +934,7 @@ is_fail_expr(E) ->
 %%
 %%          Forms = syntaxTree() | [syntaxTree()]
 %%          Key = attributes | errors | exports | functions | imports
-%%                | module | records | rules | warnings
+%%                | module | records | warnings
 %%
 %% @doc Analyzes a sequence of "program forms". The given
 %% `Forms' may be a single syntax tree of type
@@ -1047,16 +1035,6 @@ is_fail_expr(E) ->
 %% 	 that each record name occurs at most once in the list. The
 %% 	 order of listing is not defined.</dd>
 %%
-%%     <dt>`{rules, Rules}'</dt>
-%%       <dd><ul>
-%% 	    <li>`Rules = [{atom(), integer()}]'</li>
-%%       </ul>
-%% 	 `Rules' is a list of the names of the rules that are
-%% 	 defined in `Forms' (cf.
-%% 	 `analyze_rule/1'). We do not guarantee that each
-%% 	 name occurs at most once in the list. The order of listing is
-%% 	 not defined.</dd>
-%%
 %%     <dt>`{warnings, Warnings}'</dt>
 %%       <dd><ul>
 %% 	    <li>`Warnings = [term()]'</li>
@@ -1074,12 +1052,11 @@ is_fail_expr(E) ->
 %% @see analyze_import_attribute/1
 %% @see analyze_record_attribute/1
 %% @see analyze_function/1
-%% @see analyze_rule/1
 %% @see erl_syntax:error_marker_info/1
 %% @see erl_syntax:warning_marker_info/1
 
 -type key() :: 'attributes' | 'errors' | 'exports' | 'functions' | 'imports'
-             | 'module' | 'records' | 'rules' | 'warnings'.
+             | 'module' | 'records' | 'warnings'.
 -type info_pair() :: {key(), term()}.
 
 -spec analyze_forms(erl_syntax:forms()) -> [info_pair()].
@@ -1099,8 +1076,6 @@ collect_form(Node, Info) ->
             Info;
         {function, Name} ->
             finfo_add_function(Name, Info);
-        {rule, Name} ->
-            finfo_add_rule(Name, Info);
         {error_marker, Data} ->
             finfo_add_error(Data, Info);
         {warning_marker, Data} ->
@@ -1136,8 +1111,7 @@ collect_attribute(_, {N, V}, Info) ->
 		records        = []   :: [{atom(), [{atom(), field_default()}]}],
 		errors         = []   :: [term()],
 		warnings       = []   :: [term()],
-		functions      = []   :: [{atom(), arity()}],
-		rules          = []   :: [{atom(), arity()}]}).
+		functions      = []   :: [{atom(), arity()}]}).
 
 -type field_default() :: 'none' | erl_syntax:syntaxTree().
 
@@ -1183,9 +1157,6 @@ finfo_add_warning(R, Info) ->
 finfo_add_function(F, Info) ->
     Info#forms{functions = [F | Info#forms.functions]}.
 
-finfo_add_rule(F, Info) ->
-    Info#forms{rules = [F | Info#forms.rules]}.
-
 finfo_to_list(Info) ->
     [{Key, Value}
      || {Key, {value, Value}} <-
@@ -1197,8 +1168,7 @@ finfo_to_list(Info) ->
              {records, list_value(Info#forms.records)},
              {errors, list_value(Info#forms.errors)},
              {warnings, list_value(Info#forms.warnings)},
-             {functions, list_value(Info#forms.functions)},
-             {rules, list_value(Info#forms.rules)}
+             {functions, list_value(Info#forms.functions)}
             ]].
 
 list_value([]) ->
@@ -1229,10 +1199,6 @@ list_value(List) ->
 %%
 %% 	    <dd>where `Info = analyze_function(Node)'.</dd>
 %%
-%%   <dt>`{rule, Info}'</dt>
-%%
-%% 	    <dd>where `Info = analyze_rule(Node)'.</dd>
-%%
 %%   <dt>`{warning_marker, Info}'</dt>
 %%
 %% 	    <dd>where `Info =
@@ -1245,7 +1211,6 @@ list_value(List) ->
 %%
 %% @see analyze_attribute/1
 %% @see analyze_function/1
-%% @see analyze_rule/1
 %% @see erl_syntax:is_form/1
 %% @see erl_syntax:error_marker_info/1
 %% @see erl_syntax:warning_marker_info/1
@@ -1258,8 +1223,6 @@ analyze_form(Node) ->
             {attribute, analyze_attribute(Node)};
         function ->
             {function, analyze_function(Node)};
-        rule ->
-            {rule, analyze_rule(Node)};
         error_marker ->
             {error_marker, erl_syntax:error_marker_info(Node)};
         warning_marker ->
@@ -1669,7 +1632,7 @@ analyze_record_attribute_tuple(Node) ->
 %%   <dt>`record_expr':</dt>
 %%     <dd>`{atom(), [{atom(), Value}]}'</dd>
 %%   <dt>`record_access':</dt>
-%%     <dd>`{atom(), atom()} | atom()'</dd>
+%%     <dd>`{atom(), atom()}'</dd>
 %%   <dt>`record_index_expr':</dt>
 %%     <dd>`{atom(), atom()}'</dd>
 %% </dl>
@@ -1679,9 +1642,7 @@ analyze_record_attribute_tuple(Node) ->
 %% listed in the order they appear. (See
 %% `analyze_record_field/1' for details on the field
 %% descriptors). For a `record_access' node,
-%% `Info' represents the record name and the field name (or
-%% if the record name is not included, only the field name; this is
-%% allowed only in Mnemosyne-query syntax). For a
+%% `Info' represents the record name and the field name. For a
 %% `record_index_expr' node, `Info' represents the
 %% record name and the name field name.
 %%
@@ -1713,18 +1674,14 @@ analyze_record_expr(Node) ->
 	    F = erl_syntax:record_access_field(Node),
 	    case erl_syntax:type(F) of
 		atom ->
-		    case erl_syntax:record_access_type(Node) of
-			none ->
-			    {record_access, erl_syntax:atom_value(F)};
-			A ->
-			    case erl_syntax:type(A) of
-				atom ->
-				    {record_access,
-				     {erl_syntax:atom_value(A),
-				      erl_syntax:atom_value(F)}};
-				_ ->
-				    throw(syntax_error)
-			    end
+		    A = erl_syntax:record_access_type(Node),
+                    case erl_syntax:type(A) of
+                        atom ->
+                            {record_access,
+                             {erl_syntax:atom_value(A),
+                              erl_syntax:atom_value(F)}};
+                        _ ->
+                            throw(syntax_error)
 		    end;
 		_ ->
 		    throw(syntax_error)
@@ -1835,8 +1792,6 @@ analyze_file_attribute(Node) ->
 %% The evaluation throws `syntax_error' if
 %% `Node' does not represent a well-formed function
 %% definition.
-%%
-%% @see analyze_rule/1
 
 -spec analyze_function(erl_syntax:syntaxTree()) -> {atom(), arity()}.
 
@@ -1857,37 +1812,6 @@ analyze_function(Node) ->
 
 
 %% =====================================================================
-%% @spec analyze_rule(Node::syntaxTree()) -> {atom(), integer()}
-%%
-%% @doc Returns the name and arity of a Mnemosyne rule. The result is a
-%% pair `{Name, A}' if `Node' represents a rule
-%% "`Name(<em>P_1</em>, ..., <em>P_A</em>) :- ...'".
-%%
-%% The evaluation throws `syntax_error' if
-%% `Node' does not represent a well-formed Mnemosyne
-%% rule.
-%%
-%% @see analyze_function/1
-
--spec analyze_rule(erl_syntax:syntaxTree()) -> {atom(), arity()}.
-
-analyze_rule(Node) ->
-    case erl_syntax:type(Node) of
-        rule ->
-            N = erl_syntax:rule_name(Node),
-            case erl_syntax:type(N) of
-                atom ->
-                    {erl_syntax:atom_value(N),
-                     erl_syntax:rule_arity(Node)};
-                _ ->
-                    throw(syntax_error)
-            end;
-        _ ->
-            throw(syntax_error)
-    end.
-
-
-%% =====================================================================
 %% @spec analyze_implicit_fun(Node::syntaxTree()) -> FunctionName
 %%
 %%          FunctionName = atom() | {atom(), integer()}
diff --git a/lib/syntax_tools/src/erl_tidy.erl b/lib/syntax_tools/src/erl_tidy.erl
index 38e0c2099b..db7f0939a3 100644
--- a/lib/syntax_tools/src/erl_tidy.erl
+++ b/lib/syntax_tools/src/erl_tidy.erl
@@ -792,16 +792,11 @@ keep_form(Form, Used, Opts) ->
             N = erl_syntax_lib:analyze_function(Form),
             case sets:is_element(N, Used) of
                 false ->
-                    report_removed_def("function", N, Form, Opts),
-                    false;
-                true ->
-                    true
-            end;
-        rule ->
-            N = erl_syntax_lib:analyze_rule(Form),
-            case sets:is_element(N, Used) of
-                false ->
-                    report_removed_def("rule", N, Form, Opts),
+                    {F, A} = N,
+                    File = proplists:get_value(file, Opts, ""),
+                    report({File, erl_syntax:get_pos(Form),
+                            "removing unused function `~w/~w'."},
+                           [F, A], Opts),
                     false;
                 true ->
                     true
@@ -823,12 +818,6 @@ keep_form(Form, Used, Opts) ->
             true
     end.
 
-report_removed_def(Type, {N, A}, Form, Opts) ->
-    File = proplists:get_value(file, Opts, ""),
-    report({File, erl_syntax:get_pos(Form),
-	    "removing unused ~s `~w/~w'."},
-	   [Type, N, A], Opts).
-
 collect_functions(Forms) ->
     lists:foldl(
       fun (F, {Names, Defs}) ->
@@ -837,10 +826,6 @@ collect_functions(Forms) ->
                       N = erl_syntax_lib:analyze_function(F),
                       {sets:add_element(N, Names),
                        dict:store(N, {F, []}, Defs)};
-                  rule ->
-                      N = erl_syntax_lib:analyze_rule(F),
-                      {sets:add_element(N, Names),
-                       dict:store(N, {F, []}, Defs)};
                   _ ->
                       {Names, Defs}
               end
@@ -855,11 +840,6 @@ update_forms([F | Fs], Defs, Imports, Opts) ->
             {F1, Fs1} = dict:fetch(N, Defs),
             [F1 | lists:reverse(Fs1)] ++ update_forms(Fs, Defs, Imports,
                                                       Opts);
-        rule ->
-            N = erl_syntax_lib:analyze_rule(F),
-            {F1, Fs1} = dict:fetch(N, Defs),
-            [F1 | lists:reverse(Fs1)] ++ update_forms(Fs, Defs, Imports,
-                                                      Opts);
         attribute ->
             [update_attribute(F, Imports, Opts)
              | update_forms(Fs, Defs, Imports, Opts)];
diff --git a/lib/syntax_tools/src/igor.erl b/lib/syntax_tools/src/igor.erl
index 0420508f2a..eac5af5540 100644
--- a/lib/syntax_tools/src/igor.erl
+++ b/lib/syntax_tools/src/igor.erl
@@ -1713,8 +1713,6 @@ transform(Tree, Env, St) ->
   	    transform_function(Tree, Env, St);
  	implicit_fun ->
  	    transform_implicit_fun(Tree, Env, St);
-  	rule ->
-  	    transform_rule(Tree, Env, St);
   	record_expr ->
   	    transform_record(Tree, Env, St);
   	record_index_expr ->
@@ -1778,27 +1776,6 @@ renaming_note(Name) ->
 rename_atom(Node, Atom) ->
     rewrite(Node, erl_syntax:atom(Atom)).
 
-%% Renaming Mnemosyne rules (just like function definitions)
-
-transform_rule(T, Env, St) ->
-    {T1, St1} = default_transform(T, Env, St),
-    F = erl_syntax_lib:analyze_rule(T1),
-    {V, Text} = case (Env#code.map)(F) of
-		    F ->
-			%% Not renamed
-			{none, []};
-		    {Atom, _Arity} ->
-			%% Renamed
-			Cs = erl_syntax:rule_clauses(T1),
-			N = rename_atom(
-			      erl_syntax:rule_name(T1),
-			      Atom),
-			T2 = rewrite(T1,
-				     erl_syntax:rule(N, Cs)),
-			{{value, T2}, renaming_note(Atom)}
-		end,
-    {maybe_modified(V, T1, 2, Text, Env), St1}.
-
 %% Renaming "implicit fun" expressions (done quietly).
 
 transform_implicit_fun(T, Env, St) ->
diff --git a/lib/syntax_tools/src/merl.erl b/lib/syntax_tools/src/merl.erl
new file mode 100644
index 0000000000..690306c17b
--- /dev/null
+++ b/lib/syntax_tools/src/merl.erl
@@ -0,0 +1,1230 @@
+%% ---------------------------------------------------------------------
+%% Licensed under the Apache License, Version 2.0 (the "License"); you may
+%% not use this file except in compliance with the License. You may obtain
+%% a copy of the License at <http://www.apache.org/licenses/LICENSE-2.0>
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% Note: EDoc uses @@ and @} as escape sequences, so in the doc text below,
+%% `@@' must be written `@@@@' and `@}' must be written `@@}'.
+%%
+%% @author Richard Carlsson <[email protected]>
+%% @copyright 2010-2015 Richard Carlsson
+%%
+%% @doc Metaprogramming in Erlang.
+%% Merl is a more user friendly interface to the `erl_syntax' module, making
+%% it easy both to build new ASTs from scratch and to
+%% match and decompose existing ASTs. For details that are outside the scope
+%% of Merl itself, please see the documentation of {@link erl_syntax}.
+%%
+%% == Quick start ==
+%%
+%% To enable the full power of Merl, your module needs to include the Merl
+%% header file:
+%% ```-include_lib("syntax_tools/include/merl.hrl").'''
+%%
+%% Then, you can use the `?Q(Text)' macros in your code to create ASTs or match
+%% on existing ASTs. For example:
+%% ```Tuple = ?Q("{foo, 42}"),
+%%    ?Q("{foo, _@Number}") = Tuple,
+%%    Call = ?Q("foo:bar(_@Number)")'''
+%%
+%% Calling `merl:print(Call)' will then print the following code:
+%% ```foo:bar(42)'''
+%%
+%% The `?Q' macros turn the quoted code fragments into ASTs, and lifts
+%% metavariables such as `_@Tuple' and `_@Number' to the level of your Erlang
+%% code, so you can use the corresponding Erlang variables `Tuple' and `Number'
+%% directly. This is the most straightforward way to use Merl, and in many
+%% cases it's all you need.
+%%
+%% You can even write case switches using `?Q' macros as patterns. For example:
+%% ```case AST of
+%%        ?Q("{foo, _@Foo}") -> handle(Foo);
+%%        ?Q("{bar, _@Bar}") when erl_syntax:is_integer(Bar) -> handle(Bar);
+%%        _ -> handle_default()
+%%    end'''
+%%
+%% These case switches only allow `?Q(...)' or `_' as clause patterns, and the
+%% guards may contain any expressions, not just Erlang guard expressions.
+%%
+%% If the macro `MERL_NO_TRANSFORM' is defined before the `merl.hrl' header
+%% file is included, the parse transform used by Merl will be disabled, and in
+%% that case, the match expressions `?Q(...) = ...', case switches using
+%% `?Q(...)' patterns, and automatic metavariables like `_@Tuple' cannot be
+%% used in your code, but the Merl macros and functions still work. To do
+%% metavariable substitution, you need to use the `?Q(Text, Map)' macro, e.g.:
+%% ```Tuple = ?Q("{foo, _@bar, _@baz}", [{bar, Bar}, {baz,Baz}])'''
+%%
+%% The text given to a `?Q(Text)' macro can be either a single string, or a
+%% list of strings. The latter is useful when you need to split a long
+%% expression over multiple lines, e.g.:
+%% ```?Q(["case _@Expr of",
+%%        "  {foo, X} -> f(X);",
+%%        "  {bar, X} -> g(X)",
+%%        "  _ -> h(X)"
+%%        "end"])'''
+%% If there is a syntax error somewhere in the text (like the missing semicolon
+%% in the second clause above) this allows Merl to generate an error message
+%% pointing to the exact line in your source code. (Just remember to
+%% comma-separate the strings in the list, otherwise Erlang will concatenate
+%% the string fragments as if they were a single string.)
+%%
+%% == Metavariable syntax ==
+%%
+%% There are several ways to write a metavariable in your quoted code:
+%% <ul>
+%%   <li>Atoms starting with `@', for example `` '@foo' '' or `` '@Foo' ''</li>
+%%   <li>Variables starting with `_@', for example `_@bar' or `_@Bar'</li>
+%%   <li>Strings starting with ``"'@'', for example ``"'@File"''</li>
+%%   <li>Integers starting with 909, for example `9091' or `909123'</li>
+%% </ul>
+%% Following the prefix, one or more `_' or `0' characters may be used to
+%% indicate "lifting" of the variable one or more levels, and after that, a `@'
+%% or `9' character indicates a glob metavariable (matching zero or more
+%% elements in a sequence) rather than a normal metavariable. For example:
+%% <ul>
+%%   <li>`` '@_foo' '' is lifted one level, and `_@__foo' is lifted two
+%%       levels</li>
+%%   <li>`_@@@@bar' is a glob variable, and `_@_@bar' is a lifted glob
+%%       variable</li>
+%%   <li>`90901' is a lifted variable,`90991' is a glob variable, and `9090091'
+%%       is a glob variable lifted two levels</li>
+%% </ul>
+%% (Note that the last character in the name is never considered to be a lift
+%% or glob marker, hence, `_@__' and `90900' are only lifted one level, not
+%% two. Also note that globs only matter for matching; when doing
+%% substitutions, a non-glob variable can be used to inject a sequence of
+%% elements, and vice versa.)
+%%
+%% If the name after the prefix and any lift and glob markers is `_' or `0',
+%% the variable is treated as an anonymous catch-all pattern in matches. For
+%% example, `_@_', `_@@@@_', `_@__', or even `_@__@_'.
+%%
+%% Finally, if the name without any prefixes or lift/glob markers begins with
+%% an uppercase character, as in `_@Foo' or `_@_@Foo', it will become a
+%% variable on the Erlang level, and can be used to easily deconstruct and
+%% construct syntax trees:
+%% ```case Input of
+%%        ?Q("{foo, _@Number}") -> ?Q("foo:bar(_@Number)");
+%%        ...'''
+%% We refer to these as "automatic metavariables". If in addition the name ends
+%% with `@', as in `_@Foo@', the value of the variable as an Erlang term will
+%% be automatically converted to the corresponding abstract syntax tree when
+%% used to construct a larger tree. For example, in:
+%% ```Bar = {bar, 42},
+%%    Foo = ?Q("{foo, _@Bar@@}")'''
+%% (where Bar is just some term, not a syntax tree) the result `Foo' will be a
+%% syntax tree representing `{foo, {bar, 42}}'. This avoids the need for
+%% temporary variables in order to inject data, as in
+%% ```TmpBar = erl_syntax:abstract(Bar),
+%%    Foo = ?Q("{foo, _@TmpBar}")'''
+%%
+%% If the context requires an integer rather than a variable, an atom, or a
+%% string, you cannot use the uppercase convention to mark an automatic
+%% metavariable. Instead, if the integer (without the `909'-prefix and
+%% lift/glob markers) ends in a `9', the integer will become an Erlang-level
+%% variable prefixed with `Q', and if it ends with `99' it will also be
+%% automatically abstracted. For example, the following will increment the
+%% arity of the exported function f:
+%% ```case Form of
+%%        ?Q("-export([f/90919]).") ->
+%%            Q2 = erl_syntax:concrete(Q1) + 1,
+%%            ?Q("-export([f/909299]).");
+%%        ...'''
+%%
+%% == When to use the various forms of metavariables ==
+%%
+%% Merl can only parse a fragment of text if it follows the basic syntactical
+%% rules of Erlang. In most places, a normal Erlang variable can be used as
+%% metavariable, for example:
+%% ```?Q("f(_@Arg)") = Expr'''
+%% but if you want to match on something like the name of a function, you have
+%% to use an atom as metavariable:
+%% ```?Q("'@Name'() -> _@@@@_." = Function'''
+%% (note the anonymous glob variable `_@@@@_' to ignore the function body).
+%%
+%% In some contexts, only a string or an integer is allowed. For example, the
+%% directive `-file(Name, Line)' requires that `Name' is a string literal and
+%% `Line' an integer literal:
+%%
+%% ```?Q("-file(\"'@File\", 9090).") = ?Q("-file(\"foo.erl\", 42).")).'''
+%% This will extract the string literal `"foo.erl"' into the variable `Foo'.
+%% Note the use of the anonymous variable `9090' to ignore the line number. To
+%% match and also bind a metavariable that must be an integer literal, we can
+%% use the convention of ending the integer with a 9, turning it into a
+%% Q-prefixed variable on the Erlang level (see the previous section).
+%%
+%% === Globs ===
+%%
+%% Whenever you want to match out a number of elements in a sequence (zero or
+%% more) rather than a fixed set of elements, you need to use a glob. For
+%% example:
+%% ```?Q("{_@@@@Elements}") = ?Q({a, b, c})'''
+%% will bind Elements to the list of individual syntax trees representing the
+%% atoms `a', `b', and `c'. This can also be used with static prefix and suffix
+%% elements in the sequence. For example:
+%% ```?Q("{a, b, _@@@@Elements}") = ?Q({a, b, c, d})'''
+%% will bind Elements to the list of the `c' and `d' subtrees, and
+%% ```?Q("{_@@@@Elements, c, d}") = ?Q({a, b, c, d})'''
+%% will bind Elements to the list of the `a' and `b' subtrees. You can even use
+%% plain metavariables in the prefix or suffix:
+%% ```?Q("{_@First, _@@@@Rest}") = ?Q({a, b, c})'''
+%% or
+%% ```?Q("{_@@@@_, _@Last}") = ?Q({a, b, c})'''
+%% (ignoring all but the last element). You cannot however have two globs as
+%% part of the same sequence.
+%%
+%% === Lifted metavariables ===
+%%
+%% In some cases, the Erlang syntax rules make it impossible to place a
+%% metavariable directly where you would like it. For example, you cannot
+%% write:
+%% ```?Q("-export([_@@@@Name]).")'''
+%% to match out all name/arity pairs in the export list, or to insert a list of
+%% exports in a declaration, because the Erlang parser only allows elements on
+%% the form `A/I' (where `A' is an atom and `I' an integer) in the export list.
+%% A variable like the above is not allowed, but neither is a single atom or
+%% integer, so `` '@@@@Name' '' or `909919' wouldn't work either.
+%%
+%% What you have to do in such cases is to write your metavariable in a
+%% syntactically valid position, and use lifting markers to denote where it
+%% should really apply, as in:
+%% ```?Q("-export(['@@_@@Name'/0]).")'''
+%% This causes the variable to be lifted (after parsing) to the next higher
+%% level in the syntax tree, replacing that entire subtree. In this case, the
+%% `` '@@_@@Name'/0 '' will be replaced with `` '@@@@Name' '', and the ``/0''
+%% part was just used as dummy notation and will be discarded.
+%%
+%% You may even need to apply lifting more than once. To match the entire
+%% export list as a single syntax tree, you can write:
+%% ```?Q("-export(['@@__Name'/0]).")'''
+%% using two underscores, but with no glob marker this time. This will make the
+%% entire ``['@@__Name'/0]'' part be replaced with `` '@@Name' ''.
+%%
+%% Sometimes, the tree structure of a code fragment isn't very obvious, and
+%% parts of the structure may be invisible when printed as source code. For
+%% instance, a simple function definition like the following:
+%% ```zero() -> 0.'''
+%% consists of the name (the atom `zero'), and a list of clauses containing the
+%% single clause `() -> 0'. The clause consists of an argument list (empty), a
+%% guard (empty), and a body (which is always a list of expressions) containing
+%% the single expression `0'. This means that to match out the name and the
+%% list of clauses of any function, you'll need to use a pattern like
+%% ``?Q("'@Name'() -> _@_@Body.")'', using a dummy clause whose body is a glob
+%% lifted one level.
+%%
+%% To visualize the structure of a syntax tree, you can use the function
+%% `merl:show(T)', which prints a summary. For example, entering
+%% ```merl:show(merl:quote("inc(X, Y) when Y > 0 -> X + Y."))'''
+%% in the Erlang shell will print the following (where the `+' signs separate
+%% groups of subtrees on the same level):
+%% ```function: inc(X, Y) when ... -> X + Y.
+%%      atom: inc
+%%      +
+%%      clause: (X, Y) when ... -> X + Y
+%%        variable: X
+%%        variable: Y
+%%        +
+%%        disjunction: Y > 0
+%%          conjunction: Y > 0
+%%            infix_expr: Y > 0
+%%              variable: Y
+%%              +
+%%              operator: >
+%%              +
+%%              integer: 0
+%%        +
+%%        infix_expr: X + Y
+%%          variable: X
+%%          +
+%%          operator: +
+%%          +
+%%          variable: Y'''
+%%
+%% This shows another important non-obvious case: a clause guard, even if it's
+%% as simple as `Y > 0', always consists of a single disjunction of one or more
+%% conjunctions of tests, much like a tuple of tuples. Thus:
+%% <ul>
+%%   <li>``"when _@Guard ->"'' will only match a guard with exactly one
+%%     test</li>
+%%   <li>``"when _@@@@Guard ->"'' will match a guard with one or more
+%%     comma-separated tests (but no semicolons), binding `Guard' to the list
+%%     of tests</li>
+%%   <li>``"when _@_Guard ->"'' will match just like the previous pattern, but
+%%     binds `Guard' to the conjunction subtree</li>
+%%   <li>``"when _@_@Guard ->"'' will match an arbitrary nonempty guard,
+%%     binding `Guard' to the list of conjunction subtrees</li>
+%%   <li>``"when _@__Guard ->"'' will match like the previous pattern, but
+%%     binds `Guard' to the whole disjunction subtree</li>
+%%   <li>and finally, ``"when _@__@Guard ->"'' will match any clause,
+%%     binding `Guard' to `[]' if the guard is empty and to `[Disjunction]'
+%%     otherwise</li>
+%% </ul>
+%%
+%% Thus, the following pattern matches all possible clauses:
+%% ```"(_@@Args) when _@__@Guard -> _@@Body"'''
+%% @end
+
+-module(merl).
+
+-export([term/1, var/1, print/1, show/1]).
+
+-export([quote/1, quote/2, qquote/2, qquote/3]).
+
+-export([template/1, tree/1, subst/2, tsubst/2, alpha/2, match/2, switch/2]).
+
+-export([template_vars/1, meta_template/1]).
+
+-export([compile/1, compile/2, compile_and_load/1, compile_and_load/2]).
+
+%% NOTE: this module may not include merl.hrl!
+
+-type tree() :: erl_syntax:syntaxTree().
+
+-type tree_or_trees() :: tree() | [tree()].
+
+-type pattern() :: tree() | template().
+
+-type pattern_or_patterns() :: pattern() | [pattern()].
+
+-type env() :: [{Key::id(), pattern_or_patterns()}].
+
+-type id() :: atom() | integer().
+
+%% A list of strings or binaries is assumed to represent individual lines,
+%% while a flat string or binary represents source code containing newlines.
+-type text() :: string() | binary() | [string()] | [binary()].
+
+-type location() :: erl_anno:location().
+
+
+%% ------------------------------------------------------------------------
+%% Compiling and loading code directly to memory
+
+%% @equiv compile(Code, [])
+compile(Code) ->
+    compile(Code, []).
+
+%% @doc Compile a syntax tree or list of syntax trees representing a module
+%% into a binary BEAM object.
+%% @see compile_and_load/2
+%% @see compile/1
+compile(Code, Options) when not is_list(Code)->
+    case type(Code) of
+        form_list -> compile(erl_syntax:form_list_elements(Code));
+        _ -> compile([Code], Options)
+    end;
+compile(Code, Options0) when is_list(Options0) ->
+    Forms = [erl_syntax:revert(F) || F <- Code],
+    Options = [verbose, report_errors, report_warnings, binary | Options0],
+    compile:noenv_forms(Forms, Options).
+
+
+%% @equiv compile_and_load(Code, [])
+compile_and_load(Code) ->
+    compile_and_load(Code, []).
+
+%% @doc Compile a syntax tree or list of syntax trees representing a module
+%% and load the resulting module into memory.
+%% @see compile/2
+%% @see compile_and_load/1
+compile_and_load(Code, Options) ->
+    case compile(Code, Options) of
+        {ok, ModuleName, Binary} ->
+            _ = code:load_binary(ModuleName, "", Binary),
+            {ok, Binary};
+        Other -> Other
+    end.
+
+
+%% ------------------------------------------------------------------------
+%% Utility functions
+
+
+-spec var(atom()) -> tree().
+
+%% @doc Create a variable.
+
+var(Name) ->
+    erl_syntax:variable(Name).
+
+
+-spec term(term()) -> tree().
+
+%% @doc Create a syntax tree for a constant term.
+
+term(Term) ->
+    erl_syntax:abstract(Term).
+
+
+%% @doc Pretty-print a syntax tree or template to the standard output. This
+%% is a utility function for development and debugging.
+
+print(Ts) when is_list(Ts) ->
+    lists:foreach(fun print/1, Ts);
+print(T) ->
+    io:put_chars(erl_prettypr:format(tree(T))),
+    io:nl().
+
+%% @doc Print the structure of a syntax tree or template to the standard
+%% output. This is a utility function for development and debugging.
+
+show(Ts) when is_list(Ts) ->
+    lists:foreach(fun show/1, Ts);
+show(T) ->
+    io:put_chars(pp(tree(T), 0)),
+    io:nl().
+
+pp(T, I) ->
+    [lists:duplicate(I, $\s),
+     limit(lists:flatten([atom_to_list(type(T)), ": ",
+                          erl_prettypr:format(erl_syntax_lib:limit(T,3))]),
+           79-I),
+     $\n,
+     pp_1(lists:filter(fun (X) -> X =/= [] end, subtrees(T)), I+2)
+    ].
+
+pp_1([G], I) ->
+    pp_2(G, I);
+pp_1([G | Gs], I) ->
+    [pp_2(G, I), lists:duplicate(I, $\s), "+\n" | pp_1(Gs, I)];
+pp_1([], _I) ->
+    [].
+
+pp_2(G, I) ->
+    [pp(E, I) || E <- G].
+
+%% limit string to N characters, stay on a single line and compact whitespace
+limit([$\n | Cs], N) -> limit([$\s | Cs], N);
+limit([$\r | Cs], N) -> limit([$\s | Cs], N);
+limit([$\v | Cs], N) -> limit([$\s | Cs], N);
+limit([$\t | Cs], N) -> limit([$\s | Cs], N);
+limit([$\s, $\s | Cs], N) -> limit([$\s | Cs], N);
+limit([C | Cs], N) when C < 32 -> limit(Cs, N);
+limit([C | Cs], N) when N > 3 -> [C | limit(Cs, N-1)];
+limit([_C1, _C2, _C3, _C4 | _Cs], 3) -> "...";
+limit(Cs, 3) -> Cs;
+limit([_C1, _C2, _C3 | _], 2) -> "..";
+limit(Cs, 2) -> Cs;
+limit([_C1, _C2 | _], 1) -> ".";
+limit(Cs, 1) -> Cs;
+limit(_, _) -> [].
+
+%% ------------------------------------------------------------------------
+%% Parsing and instantiating code fragments
+
+
+-spec qquote(Text::text(), Env::env()) -> tree_or_trees().
+
+%% @doc Parse text and substitute meta-variables.
+%%
+%% @equiv qquote(1, Text, Env)
+
+qquote(Text, Env) ->
+    qquote(1, Text, Env).
+
+
+-spec qquote(StartPos::location(), Text::text(), Env::env()) -> tree_or_trees().
+
+%% @doc Parse text and substitute meta-variables. Takes an initial scanner
+%% starting position as first argument.
+%%
+%% The macro `?Q(Text, Env)' expands to `merl:qquote(?LINE, Text, Env)'.
+%%
+%% @see quote/2
+
+qquote(StartPos, Text, Env) ->
+    subst(quote(StartPos, Text), Env).
+
+
+-spec quote(Text::text()) -> tree_or_trees().
+
+%% @doc Parse text.
+%%
+%% @equiv quote(1, Text)
+
+quote(Text) ->
+    quote(1, Text).
+
+
+-spec quote(StartPos::location(), Text::text()) -> tree_or_trees().
+
+%% @doc Parse text. Takes an initial scanner starting position as first
+%% argument.
+%%
+%% The macro `?Q(Text)' expands to `merl:quote(?LINE, Text, Env)'.
+%%
+%% @see quote/1
+
+quote({Line, Col}, Text)
+  when is_integer(Line), is_integer(Col) ->
+    quote_1(Line, Col, Text);
+quote(StartPos, Text) when is_integer(StartPos) ->
+    quote_1(StartPos, undefined, Text).
+
+quote_1(StartLine, StartCol, Text) ->
+    %% be backwards compatible as far as R12, ignoring any starting column
+    StartPos = case erlang:system_info(version) of
+                   "5.6" ++ _ -> StartLine;
+                   "5.7" ++ _ -> StartLine;
+                   "5.8" ++ _ -> StartLine;
+                   _ when StartCol =:= undefined -> StartLine;
+                   _ -> {StartLine, StartCol}
+               end,
+    FlatText = flatten_text(Text),
+    {ok, Ts, _} = erl_scan:string(FlatText, StartPos),
+    merge_comments(StartLine, erl_comment_scan:string(FlatText), parse_1(Ts)).
+
+parse_1(Ts) ->
+    %% if dot tokens are present, it is assumed that the text represents
+    %% complete forms, not dot-terminated expressions or similar
+    case split_forms(Ts) of
+        {ok, Fs} -> parse_forms(Fs);
+        error ->
+            parse_2(Ts)
+    end.
+
+split_forms(Ts) ->
+    split_forms(Ts, [], []).
+
+split_forms([{dot,_}=T|Ts], Fs, As) ->
+    split_forms(Ts, [lists:reverse(As, [T]) | Fs], []);
+split_forms([T|Ts], Fs, As) ->
+    split_forms(Ts, Fs, [T|As]);
+split_forms([], Fs, []) ->
+    {ok, lists:reverse(Fs)};
+split_forms([], [], _) ->
+    error;  % no dot tokens found - not representing form(s)
+split_forms([], _, [T|_]) ->
+    fail("incomplete form after ~p", [T]).
+
+parse_forms([Ts | Tss]) ->
+    case erl_parse:parse_form(Ts) of
+        {ok, Form} -> [Form | parse_forms(Tss)];
+        {error, R} -> parse_error(R)
+    end;
+parse_forms([]) ->
+    [].
+
+parse_2(Ts) ->
+    %% one or more comma-separated expressions?
+    %% (recall that Ts has no dot tokens if we get to this stage)
+    case erl_parse:parse_exprs(Ts ++ [{dot,0}]) of
+        {ok, Exprs} -> Exprs;
+        {error, E} ->
+            parse_3(Ts ++ [{'end',0}, {dot,0}], [E])
+    end.
+
+parse_3(Ts, Es) ->
+    %% try-clause or clauses?
+    case erl_parse:parse_exprs([{'try',0}, {atom,0,true}, {'catch',0} | Ts]) of
+        {ok, [{'try',_,_,_,_,_}=X]} ->
+            %% get the right kind of qualifiers in the clause patterns
+            erl_syntax:try_expr_handlers(X);
+        {error, E} ->
+            parse_4(Ts, [E|Es])
+    end.
+
+parse_4(Ts, Es) ->
+    %% fun-clause or clauses? (`(a)' is also a pattern, but `(a,b)' isn't,
+    %% so fun-clauses must be tried before normal case-clauses
+    case erl_parse:parse_exprs([{'fun',0} | Ts]) of
+        {ok, [{'fun',_,{clauses,Cs}}]} -> Cs;
+        {error, E} ->
+            parse_5(Ts, [E|Es])
+    end.
+
+parse_5(Ts, Es) ->
+    %% case-clause or clauses?
+    case erl_parse:parse_exprs([{'case',0}, {atom,0,true}, {'of',0} | Ts]) of
+        {ok, [{'case',_,_,Cs}]} -> Cs;
+        {error, E} ->
+            %% select the best error to report
+            parse_error(lists:last(lists:sort([E|Es])))
+    end.
+
+-dialyzer({nowarn_function, parse_error/1}). % no local return
+
+parse_error({L, M, R}) when is_atom(M), is_integer(L) ->
+    fail("~w: ~s", [L, M:format_error(R)]);
+parse_error({{L,C}, M, R}) when is_atom(M), is_integer(L), is_integer(C) ->
+    fail("~w:~w: ~s", [L,C,M:format_error(R)]);
+parse_error({_, M, R}) when is_atom(M) ->
+    fail(M:format_error(R));
+parse_error(R) ->
+    fail("unknown parse error: ~p", [R]).
+
+%% ------------------------------------------------------------------------
+%% Templates, substitution and matching
+
+%% Leaves are normal syntax trees, and inner nodes are tuples
+%% {template,Type,Attrs,Groups} where Groups are lists of lists of nodes.
+%% Metavariables are 1-tuples {VarName}, where VarName is an atom or an
+%% integer. {'_'} and {0} work as anonymous variables in matching. Glob
+%% metavariables are tuples {'*',VarName}, and {'*','_'} and {'*',0} are
+%% anonymous globs.
+
+%% Note that although template() :: tree() | ..., it is implied that these
+%% syntax trees are free from metavariables, so pattern() :: tree() |
+%% template() is in fact a wider type than template().
+
+-type template() :: tree()
+                  | {id()}
+                  | {'*',id()}
+                  | {template, atom(), term(), [[template()]]}.
+
+-type template_or_templates() :: template() | [template()].
+
+-spec template(pattern_or_patterns()) -> template_or_templates().
+
+%% @doc Turn a syntax tree or list of trees into a template or templates.
+%% Templates can be instantiated or matched against, and reverted back to
+%% normal syntax trees using {@link tree/1}. If the input is already a
+%% template, it is not modified further.
+%%
+%% @see subst/2
+%% @see match/2
+%% @see tree/1
+
+template(Trees) when is_list(Trees) ->
+    [template_0(T) || T <- Trees];
+template(Tree) ->
+    template_0(Tree).
+
+template_0({template, _, _, _}=Template) -> Template;
+template_0({'*',_}=Template) -> Template;
+template_0({_}=Template) -> Template;
+template_0(Tree) ->
+    case template_1(Tree) of
+        false -> Tree;
+        {Name} when is_list(Name) ->
+            fail("bad metavariable: '~s'", [tl(Name)]);  % drop v/n from name
+        Template -> Template
+    end.
+
+%% returns either a template or a lifted metavariable {String}, or 'false'
+%% if Tree contained no metavariables
+template_1(Tree) ->
+    case subtrees(Tree) of
+        [] ->
+            case metavar(Tree) of
+                {"v_"++Cs}=V when Cs =/= [] -> V;  % to be lifted
+                {"n0"++Cs}=V when Cs =/= [] -> V;  % to be lifted
+                {"v@"++Cs} when Cs =/= [] -> {'*',list_to_atom(Cs)};
+                {"n9"++Cs} when Cs =/= [] -> {'*',list_to_integer(Cs)};
+                {"v"++Cs} -> {list_to_atom(Cs)};
+                {"n"++Cs} -> {list_to_integer(Cs)};
+                false -> false
+            end;
+        Gs ->
+            case template_2(Gs, [], false) of
+                Gs1 when is_list(Gs1) ->
+                    {template, type(Tree), erl_syntax:get_attrs(Tree), Gs1};
+                Other ->
+                    Other
+            end
+    end.
+
+template_2([G | Gs], As, Bool) ->
+    case template_3(G, [], false) of
+        {"v_"++Cs}=V when Cs =/= [] -> V;  % lift further
+        {"n0"++Cs}=V when Cs =/= [] -> V;  % lift further
+        {"v@"++Cs} when Cs =/= [] -> {'*',list_to_atom(Cs)};  % stop
+        {"n9"++Cs} when Cs =/= [] -> {'*',list_to_integer(Cs)};  % stop
+        {"v"++Cs} when is_list(Cs) -> {list_to_atom(Cs)};  % stop
+        {"n"++Cs} when is_list(Cs) -> {list_to_integer(Cs)};  % stop
+        false -> template_2(Gs, [G | As], Bool);
+        G1 -> template_2(Gs, [G1 | As], true)
+    end;
+template_2([], _As, false) -> false;
+template_2([], As, true) -> lists:reverse(As).
+
+template_3([T | Ts], As, Bool) ->
+    case template_1(T) of
+        {"v_"++Cs} when Cs =/= [] -> {"v"++Cs};  % lift
+        {"n0"++Cs} when Cs =/= [] -> {"n"++Cs};  % lift
+        false -> template_3(Ts, [T | As], Bool);
+        T1 -> template_3(Ts, [T1 | As], true)
+    end;
+template_3([], _As, false) -> false;
+template_3([], As, true) -> lists:reverse(As).
+
+
+%% @doc Turn a template into a syntax tree representing the template.
+%% Meta-variables in the template are turned into normal Erlang variables if
+%% their names (after the metavariable prefix characters) begin with an
+%% uppercase character. E.g., `_@Foo' in the template becomes the variable
+%% `Foo' in the meta-template. Furthermore, variables ending with `@' are
+%% automatically wrapped in a call to merl:term/1, so e.g. `_@Foo@ in the
+%% template becomes `merl:term(Foo)' in the meta-template.
+
+-spec meta_template(template_or_templates()) -> tree_or_trees().
+
+meta_template(Templates) when is_list(Templates) ->
+    [meta_template_1(T) || T <- Templates];
+meta_template(Template) ->
+    meta_template_1(Template).
+
+meta_template_1({template, Type, Attrs, Groups}) ->
+    erl_syntax:tuple(
+      [erl_syntax:atom(template),
+       erl_syntax:atom(Type),
+       erl_syntax:abstract(Attrs),
+       erl_syntax:list([erl_syntax:list([meta_template_1(T) || T <- G])
+                        || G <- Groups])]);
+meta_template_1({Var}=V) ->
+    meta_template_2(Var, V);
+meta_template_1({'*',Var}=V) ->
+    meta_template_2(Var, V);
+meta_template_1(Leaf) ->
+    erl_syntax:abstract(Leaf).
+
+meta_template_2(Var, V) when is_atom(Var) ->
+    case atom_to_list(Var) of
+        [C|_]=Name when C >= $A, C =< $Z ; C >= $À, C =< $Þ, C /= $× ->
+            case lists:reverse(Name) of
+                "@"++([_|_]=RevRealName) ->  % don't allow empty RealName
+                    RealName = lists:reverse(RevRealName),
+                    erl_syntax:application(erl_syntax:atom(merl),
+                                           erl_syntax:atom(term),
+                                           [erl_syntax:variable(RealName)]);
+                _ ->
+                    %% plain automatic metavariable
+                    erl_syntax:variable(Name)
+            end;
+        _ ->
+            erl_syntax:abstract(V)
+    end;
+meta_template_2(Var, V) when is_integer(Var) ->
+    if Var > 9, (Var rem 10) =:= 9 ->
+            %% at least 2 digits, ends in 9: make it a Q-variable
+            if Var > 99, (Var rem 100) =:= 99 ->
+                    %% at least 3 digits, ends in 99: wrap in merl:term/1
+                    Name = "Q" ++ integer_to_list(Var div 100),
+                    erl_syntax:application(erl_syntax:atom(merl),
+                                           erl_syntax:atom(term),
+                                           [erl_syntax:variable(Name)]);
+               true ->
+                    %% plain automatic Q-variable
+                    Name = integer_to_list(Var div 10),
+                    erl_syntax:variable("Q" ++ Name)
+            end;
+       true ->
+            erl_syntax:abstract(V)
+    end.
+
+
+
+-spec template_vars(template_or_templates()) -> [id()].
+
+%% @doc Return an ordered list of the metavariables in the template.
+
+template_vars(Template) ->
+    template_vars(Template, []).
+
+template_vars(Templates, Vars) when is_list(Templates) ->
+    lists:foldl(fun template_vars_1/2, Vars, Templates);
+template_vars(Template, Vars) ->
+    template_vars_1(Template, Vars).
+
+template_vars_1({template, _, _, Groups}, Vars) ->
+    lists:foldl(fun (G, V) -> lists:foldl(fun template_vars_1/2, V, G) end,
+                Vars, Groups);
+template_vars_1({Var}, Vars) ->
+    ordsets:add_element(Var, Vars);
+template_vars_1({'*',Var}, Vars) ->
+    ordsets:add_element(Var, Vars);
+template_vars_1(_, Vars) ->
+    Vars.
+
+
+-spec tree(template_or_templates()) -> tree_or_trees().
+
+%% @doc Revert a template to a normal syntax tree. Any remaining
+%% metavariables are turned into `@'-prefixed atoms or `909'-prefixed
+%% integers.
+%% @see template/1
+
+tree(Templates) when is_list(Templates) ->
+    [tree_1(T) || T <- Templates];
+tree(Template) ->
+    tree_1(Template).
+
+tree_1({template, Type, Attrs, Groups}) ->
+    %% flattening here is needed for templates created via source transforms
+    Gs = [lists:flatten([tree_1(T) || T <- G]) || G <- Groups],
+    erl_syntax:set_attrs(make_tree(Type, Gs), Attrs);
+tree_1({Var}) when is_atom(Var) ->
+    erl_syntax:atom(list_to_atom("@"++atom_to_list(Var)));
+tree_1({Var}) when is_integer(Var) ->
+    erl_syntax:integer(list_to_integer("909"++integer_to_list(Var)));
+tree_1({'*',Var}) when is_atom(Var) ->
+    erl_syntax:atom(list_to_atom("@@"++atom_to_list(Var)));
+tree_1({'*',Var}) when is_integer(Var) ->
+    erl_syntax:integer(list_to_integer("9099"++integer_to_list(Var)));
+tree_1(Leaf) ->
+    Leaf.  % any syntax tree, not necessarily atomic (due to substitutions)
+
+
+-spec subst(pattern_or_patterns(), env()) -> tree_or_trees().
+
+%% @doc Substitute metavariables in a pattern or list of patterns, yielding
+%% a syntax tree or list of trees as result. Both for normal metavariables
+%% and glob metavariables, the substituted value may be a single element or
+%% a list of elements. For example, if a list representing `1, 2, 3' is
+%% substituted for `var' in either of `[foo, _@var, bar]' or `[foo, _@@var,
+%% bar]', the result represents `[foo, 1, 2, 3, bar]'.
+
+subst(Trees, Env) when is_list(Trees) ->
+    [subst_0(T, Env) || T <- Trees];
+subst(Tree, Env) ->
+    subst_0(Tree, Env).
+
+subst_0(Tree, Env) ->
+    tree_1(subst_1(template(Tree), Env)).
+
+
+-spec tsubst(pattern_or_patterns(), env()) -> template_or_templates().
+
+%% @doc Like subst/2, but does not convert the result from a template back
+%% to a tree. Useful if you want to do multiple separate substitutions.
+%% @see subst/2
+%% @see tree/1
+
+tsubst(Trees, Env) when is_list(Trees) ->
+    [subst_1(template(T), Env) || T <- Trees];
+tsubst(Tree, Env) ->
+    subst_1(template(Tree), Env).
+
+subst_1({template, Type, Attrs, Groups}, Env) ->
+    Gs1 = [lists:flatten([subst_1(T, Env) || T <- G]) || G <- Groups],
+    {template, Type, Attrs, Gs1};
+subst_1({Var}=V, Env) ->
+    case lists:keyfind(Var, 1, Env) of
+        {Var, TreeOrTrees} -> TreeOrTrees;
+        false -> V
+    end;
+subst_1({'*',Var}=V, Env) ->
+    case lists:keyfind(Var, 1, Env) of
+        {Var, TreeOrTrees} -> TreeOrTrees;
+        false -> V
+    end;
+subst_1(Leaf, _Env) ->
+    Leaf.
+
+
+-spec alpha(pattern_or_patterns(), [{id(), id()}]) -> template_or_templates().
+
+%% @doc Alpha converts a pattern (renames variables). Similar to tsubst/1,
+%% but only renames variables (including globs).
+%% @see tsubst/2
+
+alpha(Trees, Env) when is_list(Trees) ->
+    [alpha_1(template(T), Env) || T <- Trees];
+alpha(Tree, Env) ->
+    alpha_1(template(Tree), Env).
+
+alpha_1({template, Type, Attrs, Groups}, Env) ->
+    Gs1 = [lists:flatten([alpha_1(T, Env) || T <- G]) || G <- Groups],
+    {template, Type, Attrs, Gs1};
+alpha_1({Var}=V, Env) ->
+    case lists:keyfind(Var, 1, Env) of
+        {Var, NewVar} -> {NewVar};
+        false -> V
+    end;
+alpha_1({'*',Var}=V, Env) ->
+    case lists:keyfind(Var, 1, Env) of
+        {Var, NewVar} -> {'*',NewVar};
+        false -> V
+    end;
+alpha_1(Leaf, _Env) ->
+    Leaf.
+
+
+-spec match(pattern_or_patterns(), tree_or_trees()) ->
+                   {ok, env()} | error.
+
+%% @doc Match a pattern against a syntax tree (or patterns against syntax
+%% trees) returning an environment mapping variable names to subtrees; the
+%% environment is always sorted on keys. Note that multiple occurrences of
+%% metavariables in the pattern is not allowed, but is not checked.
+%%
+%% @see template/1
+%% @see switch/2
+
+match(Patterns, Trees) when is_list(Patterns), is_list(Trees) ->
+    try {ok, match_1(Patterns, Trees, [])}
+    catch
+        error -> error
+    end;
+match(Patterns, Tree) when is_list(Patterns) -> match(Patterns, [Tree]);
+match(Pattern, Trees) when is_list(Trees) -> match([Pattern], Trees);
+match(Pattern, Tree) ->
+    try {ok, match_template(template(Pattern), Tree, [])}
+    catch
+        error -> error
+    end.
+
+match_1([P|Ps], [T | Ts], Dict) ->
+    match_1(Ps, Ts, match_template(template(P), T, Dict));
+match_1([], [], Dict) ->
+    Dict;
+match_1(_, _, _Dict) ->
+    erlang:error(merl_match_arity).
+
+%% match a template against a syntax tree
+match_template({template, Type, _, Gs}, Tree, Dict) ->
+    case type(Tree) of
+        Type -> match_template_1(Gs, subtrees(Tree), Dict);
+        _ -> throw(error)  % type mismatch
+    end;
+match_template({Var}, _Tree, Dict)
+  when Var =:= '_' ; Var =:= 0 ->
+    Dict;  % anonymous variable
+match_template({Var}, Tree, Dict) ->
+    orddict:store(Var, Tree, Dict);
+match_template(Tree1, Tree2, Dict) ->
+    %% if Tree1 is not a template, Tree1 and Tree2 are both syntax trees
+    case compare_trees(Tree1, Tree2) of
+        true -> Dict;
+        false -> throw(error)  % different trees
+    end.
+
+match_template_1([G1 | Gs1], [G2 | Gs2], Dict) ->
+    match_template_2(G1, G2, match_template_1(Gs1, Gs2, Dict));
+match_template_1([], [], Dict) ->
+    Dict;
+match_template_1(_, _, _Dict) ->
+    throw(error).  % shape mismatch
+
+match_template_2([{Var} | Ts1], [_ | Ts2], Dict)
+  when Var =:= '_' ; Var =:= 0 ->
+    match_template_2(Ts1, Ts2, Dict);  % anonymous variable
+match_template_2([{Var} | Ts1], [Tree | Ts2], Dict) ->
+    match_template_2(Ts1, Ts2, orddict:store(Var, Tree, Dict));
+match_template_2([{'*',Var} | Ts1], Ts2, Dict) ->
+    match_glob(lists:reverse(Ts1), lists:reverse(Ts2), Var, Dict);
+match_template_2([T1 | Ts1], [T2 | Ts2], Dict) ->
+    match_template_2(Ts1, Ts2, match_template(T1, T2, Dict));
+match_template_2([], [], Dict) ->
+    Dict;
+match_template_2(_, _, _Dict) ->
+    throw(error).  % shape mismatch
+
+%% match the tails in reverse order; no further globs allowed
+match_glob([{'*',Var} | _], _, _, _) ->
+    fail("multiple glob variables in same match group: ~w", [Var]);
+match_glob([T1 | Ts1], [T2 | Ts2], Var, Dict) ->
+    match_glob(Ts1, Ts2, Var, match_template(T1, T2, Dict));
+match_glob([], _Group, Var, Dict) when Var =:= '_' ; Var =:= 0 ->
+    Dict;  % anonymous glob variable
+match_glob([], Group, Var, Dict) ->
+    orddict:store(Var, lists:reverse(Group), Dict);
+match_glob(_, _, _, _Dict) ->
+    throw(error).  % shape mismatch
+
+
+%% compare two syntax trees for equivalence
+compare_trees(T1, T2) ->
+    Type1 = type(T1),
+    case type(T2) of
+        Type1 ->
+            case subtrees(T1) of
+                [] ->
+                    case subtrees(T2) of
+                        [] -> compare_leaves(Type1, T1, T2);
+                        _Gs2 -> false  % shape mismatch
+                    end;
+                Gs1 ->
+                    case subtrees(T2) of
+                        [] -> false;  % shape mismatch
+                        Gs2 -> compare_trees_1(Gs1, Gs2)
+                    end
+            end;
+        _Type2 ->
+            false  % different tree types
+    end.
+
+compare_trees_1([G1 | Gs1], [G2 | Gs2]) ->
+    compare_trees_2(G1, G2) andalso compare_trees_1(Gs1, Gs2);
+compare_trees_1([], []) ->
+    true;
+compare_trees_1(_, _) ->
+    false.  % shape mismatch
+
+compare_trees_2([T1 | Ts1], [T2 | Ts2]) ->
+    compare_trees(T1, T2) andalso compare_trees_2(Ts1, Ts2);
+compare_trees_2([], []) ->
+    true;
+compare_trees_2(_, _) ->
+    false.  % shape mismatch
+
+compare_leaves(Type, T1, T2) ->
+    case Type of
+        atom ->
+            erl_syntax:atom_value(T1)
+                =:= erl_syntax:atom_value(T2);
+        char ->
+            erl_syntax:char_value(T1)
+                =:= erl_syntax:char_value(T2);
+        float ->
+            erl_syntax:float_value(T1)
+                =:= erl_syntax:float_value(T2);
+        integer ->
+            erl_syntax:integer_value(T1)
+                =:= erl_syntax:integer_value(T2);
+        string ->
+            erl_syntax:string_value(T1)
+                =:= erl_syntax:string_value(T2);
+        operator ->
+            erl_syntax:operator_name(T1)
+                =:= erl_syntax:operator_name(T2);
+        text ->
+            erl_syntax:text_string(T1)
+                =:= erl_syntax:text_string(T2);
+        variable ->
+            erl_syntax:variable_name(T1)
+                =:= erl_syntax:variable_name(T2);
+        _ ->
+            true  % trivially equal nodes
+    end.
+
+
+%% @doc Match against one or more clauses with patterns and optional guards.
+%%
+%% Note that clauses following a default action will be ignored.
+%%
+%% @see match/2
+
+-type switch_clause() ::
+          {pattern_or_patterns(), guarded_actions()}
+        | {pattern_or_patterns(), guard_test(), switch_action()}
+        | default_action().
+
+-type guarded_actions() :: guarded_action() | [guarded_action()].
+
+-type guarded_action() :: switch_action() | {guard_test(), switch_action()}.
+
+-type switch_action() :: fun( (env()) -> any() ).
+
+-type guard_test() :: fun( (env()) -> boolean() ).
+
+-type default_action() :: fun( () -> any() ).
+
+
+-spec switch(tree_or_trees(), [switch_clause()]) -> any().
+
+switch(Trees, [{Patterns, GuardedActions} | Cs]) when is_list(GuardedActions) ->
+    switch_1(Trees, Patterns, GuardedActions, Cs);
+switch(Trees, [{Patterns, GuardedAction} | Cs]) ->
+    switch_1(Trees, Patterns, [GuardedAction], Cs);
+switch(Trees, [{Patterns, Guard, Action} | Cs]) ->
+    switch_1(Trees, Patterns, [{Guard, Action}], Cs);
+switch(_Trees, [Default | _Cs]) when is_function(Default, 0) ->
+    Default();
+switch(_Trees, []) ->
+    erlang:error(merl_switch_clause);
+switch(_Tree, _) ->
+    erlang:error(merl_switch_badarg).
+
+switch_1(Trees, Patterns, GuardedActions, Cs) ->
+    case match(Patterns, Trees) of
+        {ok, Env} ->
+            switch_2(Env, GuardedActions, Trees, Cs);
+        error ->
+            switch(Trees, Cs)
+    end.
+
+switch_2(Env, [{Guard, Action} | Bs], Trees, Cs)
+  when is_function(Guard, 1), is_function(Action, 1) ->
+    case Guard(Env) of
+        true -> Action(Env);
+        false -> switch_2(Env, Bs, Trees, Cs)
+    end;
+switch_2(Env, [Action | _Bs], _Trees, _Cs) when is_function(Action, 1) ->
+    Action(Env);
+switch_2(_Env, [], Trees, Cs) ->
+    switch(Trees, Cs);
+switch_2(_Env, _, _Trees, _Cs) ->
+    erlang:error(merl_switch_badarg).
+
+
+%% ------------------------------------------------------------------------
+%% Internal utility functions
+
+-dialyzer({nowarn_function, fail/1}). % no local return
+
+fail(Text) ->
+    fail(Text, []).
+
+fail(Fs, As) ->
+    throw({error, lists:flatten(io_lib:format(Fs, As))}).
+
+flatten_text([L | _]=Lines) when is_list(L) ->
+    lists:foldr(fun(S, T) -> S ++ [$\n | T] end, "", Lines);
+flatten_text([B | _]=Lines) when is_binary(B) ->
+    lists:foldr(fun(S, T) -> binary_to_list(S) ++ [$\n | T] end, "", Lines);
+flatten_text(Text) when is_binary(Text) ->
+    binary_to_list(Text);
+flatten_text(Text) ->
+    Text.
+
+-spec metavar(tree()) -> {string()} | false.
+
+%% Check if a syntax tree represents a metavariable. If not, 'false' is
+%% returned; otherwise, this returns a 1-tuple with a string containing the
+%% variable name including lift/glob prefixes but without any leading
+%% metavariable prefix, and instead prefixed with "v" for a variable or "i"
+%% for an integer.
+%%
+%% Metavariables are atoms starting with @, variables starting with _@,
+%% strings starting with "'@, or integers starting with 909. Following the
+%% prefix, one or more _ or 0 characters (unless it's the last character in
+%% the name) may be used to indicate "lifting" of the variable one or more
+%% levels , and after that, a @ or 9 character indicates a glob metavariable
+%% rather than a normal metavariable. If the name after the prefix is _ or
+%% 0, the variable is treated as an anonymous catch-all pattern in matches.
+
+metavar(Tree) ->
+    case type(Tree) of
+        atom ->
+            case erl_syntax:atom_name(Tree) of
+                "@" ++ Cs when Cs =/= [] -> {"v"++Cs};
+                _ -> false
+            end;
+        variable ->
+            case erl_syntax:variable_literal(Tree) of
+                "_@" ++ Cs when Cs =/= [] -> {"v"++Cs};
+                _ -> false
+            end;
+        integer ->
+            case erl_syntax:integer_value(Tree) of
+                N when N >= 9090 ->
+                    case integer_to_list(N) of
+                        "909" ++ Cs -> {"n"++Cs};
+                        _ -> false
+                    end;
+                _ -> false
+            end;
+        string ->
+            case erl_syntax:string_value(Tree) of
+                "'@" ++ Cs -> {"v"++Cs};
+                _ -> false
+            end;
+        _ ->
+            false
+    end.
+
+%% wrappers around erl_syntax functions to provide more uniform shape of
+%% generic subtrees (maybe this can be fixed in syntax_tools one day)
+
+type(T) ->
+    case erl_syntax:type(T) of
+        nil  -> list;
+        Type -> Type
+    end.
+
+subtrees(T) ->
+    case erl_syntax:type(T) of
+        tuple ->
+            [erl_syntax:tuple_elements(T)];  %% don't treat {} as a leaf
+        nil ->
+            [[], []];  %% don't treat [] as a leaf, but as a list
+        list ->
+            case erl_syntax:list_suffix(T) of
+                none ->
+                    [erl_syntax:list_prefix(T), []];
+                S ->
+                    [erl_syntax:list_prefix(T), [S]]
+            end;
+        binary_field ->
+            [[erl_syntax:binary_field_body(T)],
+             erl_syntax:binary_field_types(T)];
+        clause ->
+            case erl_syntax:clause_guard(T) of
+                none ->
+                    [erl_syntax:clause_patterns(T), [],
+                     erl_syntax:clause_body(T)];
+                G ->
+                    [erl_syntax:clause_patterns(T), [G],
+                     erl_syntax:clause_body(T)]
+            end;
+        receive_expr ->
+            case erl_syntax:receive_expr_timeout(T) of
+                none ->
+                    [erl_syntax:receive_expr_clauses(T), [], []];
+                E ->
+                    [erl_syntax:receive_expr_clauses(T), [E],
+                     erl_syntax:receive_expr_action(T)]
+            end;
+        record_expr ->
+            case erl_syntax:record_expr_argument(T) of
+                none ->
+                    [[], [erl_syntax:record_expr_type(T)],
+                     erl_syntax:record_expr_fields(T)];
+                V ->
+                    [[V], [erl_syntax:record_expr_type(T)],
+                     erl_syntax:record_expr_fields(T)]
+            end;
+        record_field ->
+            case erl_syntax:record_field_value(T) of
+                none ->
+                    [[erl_syntax:record_field_name(T)], []];
+                V ->
+                    [[erl_syntax:record_field_name(T)], [V]]
+            end;
+        _ ->
+            erl_syntax:subtrees(T)
+    end.
+
+make_tree(list, [P, []]) -> erl_syntax:list(P);
+make_tree(list, [P, [S]]) -> erl_syntax:list(P, S);
+make_tree(tuple, [E]) -> erl_syntax:tuple(E);
+make_tree(binary_field, [[B], Ts]) -> erl_syntax:binary_field(B, Ts);
+make_tree(clause, [P, [], B]) -> erl_syntax:clause(P, none, B);
+make_tree(clause, [P, [G], B]) -> erl_syntax:clause(P, G, B);
+make_tree(receive_expr, [C, [], _A]) -> erl_syntax:receive_expr(C);
+make_tree(receive_expr, [C, [E], A]) -> erl_syntax:receive_expr(C, E, A);
+make_tree(record_expr, [[], [T], F]) -> erl_syntax:record_expr(T, F);
+make_tree(record_expr, [[E], [T], F]) -> erl_syntax:record_expr(E, T, F);
+make_tree(record_field, [[N], []]) -> erl_syntax:record_field(N);
+make_tree(record_field, [[N], [E]]) -> erl_syntax:record_field(N, E);
+make_tree(Type, Groups) ->
+    erl_syntax:make_tree(Type, Groups).
+
+merge_comments(_StartLine, [], [T]) -> T;
+merge_comments(_StartLine, [], Ts) -> Ts;
+merge_comments(StartLine, Comments, Ts) ->
+    merge_comments(StartLine, Comments, Ts, []).
+
+merge_comments(_StartLine, [], [], [T]) -> T;
+merge_comments(_StartLine, [], [T], []) -> T;
+merge_comments(_StartLine, [], Ts, Acc) ->
+    lists:reverse(Acc, Ts);
+merge_comments(StartLine, Cs, [], Acc) ->
+    merge_comments(StartLine, [], [],
+                   [erl_syntax:set_pos(
+                      erl_syntax:comment(Indent, Text),
+                      StartLine + Line - 1)
+                    || {Line, _, Indent, Text} <- Cs] ++ Acc);
+merge_comments(StartLine, [C|Cs], [T|Ts], Acc) ->
+    {Line, _Col, Indent, Text} = C,
+    CommentLine = StartLine + Line - 1,
+    case erl_syntax:get_pos(T) of
+        Pos when Pos < CommentLine ->
+            %% TODO: traverse sub-tree rather than only the top level nodes
+            merge_comments(StartLine, [C|Cs], Ts, [T|Acc]);
+        CommentLine ->
+            Tc = erl_syntax:add_postcomments(
+                   [erl_syntax:comment(Indent, Text)], T),
+            merge_comments(StartLine, Cs, [Tc|Ts], Acc);
+        _ ->
+            Tc = erl_syntax:add_precomments(
+                   [erl_syntax:comment(Indent, Text)], T),
+            merge_comments(StartLine, Cs, [Tc|Ts], Acc)
+    end.
diff --git a/lib/syntax_tools/src/merl_tests.erl b/lib/syntax_tools/src/merl_tests.erl
new file mode 100644
index 0000000000..c1aae3100e
--- /dev/null
+++ b/lib/syntax_tools/src/merl_tests.erl
@@ -0,0 +1,539 @@
+%% ---------------------------------------------------------------------
+%% Licensed under the Apache License, Version 2.0 (the "License"); you may
+%% not use this file except in compliance with the License. You may obtain
+%% a copy of the License at <http://www.apache.org/licenses/LICENSE-2.0>
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% @author Richard Carlsson <[email protected]>
+%% @copyright 2012-2015 Richard Carlsson
+%% @doc Unit tests for merl.
+%% @private
+
+-module(merl_tests).
+
+%-define(MERL_NO_TRANSFORM, true).
+-include("merl.hrl").
+
+-include_lib("eunit/include/eunit.hrl").
+
+
+%% utilities
+
+f(Ts) when is_list(Ts) ->
+    lists:flatmap(fun erl_prettypr:format/1, Ts);
+f(T) ->
+    erl_prettypr:format(T).
+
+fe(Env) -> [{Key, f(T)} || {Key, T} <- Env].
+
+g_exported_() ->
+    %% for testing the parse transform, autoexported to avoid complaints
+    {ok, merl:quote(?LINE, "42")}.
+
+
+ok({ok, X}) -> X.
+
+
+%%
+%% tests
+%%
+
+parse_error_test_() ->
+    [?_assertThrow({error, "1: syntax error before: '{'" ++ _},
+                   f(merl:quote("{")))
+    ].
+
+term_test_() ->
+    [?_assertEqual(tuple, erl_syntax:type(merl:term({}))),
+     ?_assertEqual("{foo, 42}", f(merl:term({foo, 42})))
+    ].
+
+quote_form_test_() ->
+    [?_assertEqual("f(X) -> {ok, X}.",
+                   f(?Q("f(X) -> {ok, X}."))),
+     ?_assertEqual("-module(foo).",
+                   f(?Q("-module(foo)."))),
+     ?_assertEqual("-import(bar, [f/1, g/2]).",
+                   f(?Q("-import(bar, [f/1, g/2])."))),
+     ?_assertEqual(("-module(foo)."
+                    "-export([f/1])."
+                    "f(X) -> {ok, X}."),
+                   f(?Q(["-module(foo).",
+                         "-export([f/1]).",
+                         "f(X) -> {ok, X}."])))
+    ].
+
+quote_term_test_() ->
+    [?_assertEqual("foo",
+                   f(?Q("foo"))),
+     ?_assertEqual("42",
+                   f(?Q("42"))),
+     ?_assertEqual("{foo, 42}",
+                   f(?Q("{foo, 42}"))),
+     ?_assertEqual(("1" ++ "2" ++ "3"),
+                   f(?Q("1, 2, 3"))),
+     ?_assertEqual(("foo" "42" "{}" "true"),
+                   f(?Q("foo, 42, {}, (true)")))
+    ].
+
+quote_expr_test_() ->
+    [?_assertEqual("2 + 2",
+                   f(?Q("2 + 2"))),
+     ?_assertEqual("f(foo, 42)",
+                   f(?Q("f(foo, 42)"))),
+     ?_assertEqual("case X of\n  a -> 1;\n  b -> 2\nend",
+                   f(?Q("case X of a -> 1; b -> 2 end"))),
+     ?_assertEqual(("2 + 2" ++ "f(42)" ++ "catch 22"),
+                   f(?Q("2 + 2, f(42), catch 22")))
+    ].
+
+quote_try_clause_test_() ->
+    [?_assertEqual("(error:R) when R =/= foo -> ok",
+                   f(?Q("error:R when R =/= foo -> ok"))),
+     %% note that without any context, clauses are printed as fun-clauses
+     ?_assertEqual(("(error:badarg) -> badarg"
+                    "(exit:normal) -> normal"
+                    "(_) -> other"),
+                   f(?Q(["error:badarg -> badarg;",
+                         "exit:normal -> normal;"
+                         "_ -> other"])))
+    ].
+
+quote_fun_clause_test_() ->
+    [?_assertEqual("(X, Y) when X < Y -> {ok, X}",
+                   f(?Q("(X, Y) when X < Y -> {ok, X}"))),
+     ?_assertEqual(("(X, Y) when X < Y -> less"
+                    "(X, Y) when X > Y -> greater"
+                    "(_, _) -> equal"),
+                   f(?Q(["(X, Y) when X < Y -> less;",
+                         "(X, Y) when X > Y -> greater;"
+                         "(_, _) -> equal"])))].
+
+quote_case_clause_test_() ->
+    [?_assertEqual("({X, Y}) when X < Y -> X",
+                   f(?Q("{X, Y} when X < Y -> X"))),
+     ?_assertEqual(("({X, Y}) when X < Y -> -1"
+                    "({X, Y}) when X > Y -> 1"
+                    "(_) -> 0"),
+                   f(?Q(["{X, Y} when X < Y -> -1;",
+                         "{X, Y} when X > Y -> 1;"
+                         "_ -> 0"])))].
+
+quote_comment_test_() ->
+    [?_assertEqual("%% comment preserved\n"
+                   "{foo, 42}",
+                  f(?Q(["%% comment preserved",
+                        "{foo, 42}"]))),
+     ?_assertEqual("{foo, 42}"
+                   "%% comment preserved\n",
+                   f(?Q(["{foo, 42}",
+                         "%% comment preserved"]))),
+     ?_assertEqual("  % just a comment (with indent)\n",
+                  f(?Q("  % just a comment (with indent)")))
+    ].
+
+metavar_test_() ->
+    [?_assertEqual("'@foo'", f(merl:tree(merl:template(?Q("'@foo'"))))),
+     ?_assertEqual("'@foo'", f(merl:tree(merl:template(?Q("_@foo"))))),
+     ?_assertEqual("'@foo'", f(merl:tree(merl:template(?Q("\"'@foo\""))))),
+     ?_assertEqual("{'@foo'}", f(merl:tree(merl:template(?Q("{_@foo}"))))),
+     ?_assertEqual("'@foo'", f(merl:tree(merl:template(?Q("{_@_foo}"))))),
+     ?_assertEqual("909123", f(merl:tree(merl:template(?Q("{9090123}"))))),
+     ?_assertEqual("{'@foo'}",
+                   f(merl:tree(merl:template(?Q("{{{_@__foo}}}"))))),
+     ?_assertEqual("{909123}",
+                   f(merl:tree(merl:template(?Q("{{{90900123}}}"))))),
+     ?_assertEqual("{'@@foo'}",
+                   f(merl:tree(merl:template(?Q("{{{_@__@foo}}}"))))),
+     ?_assertEqual("{9099123}",
+                   f(merl:tree(merl:template(?Q("{{{909009123}}}")))))
+    ].
+
+subst_test_() ->
+    [?_assertEqual("42",
+                   f(merl:subst(?Q("_@foo"), [{foo, merl:term(42)}]))),
+     ?_assertEqual("'@foo'",
+                   f(merl:subst(?Q("_@foo"), []))),
+     ?_assertEqual("{42}",
+                   f(merl:subst(?Q("{_@foo}"),
+                                [{foo, merl:term(42)}]))),
+     ?_assertEqual("{'@foo'}",
+                   f(merl:subst(?Q("{_@foo}"), []))),
+     ?_assertEqual("fun bar/0",
+                   f(merl:subst(merl:template(?Q("fun '@foo'/0")),
+                                [{foo, merl:term(bar)}]))),
+     ?_assertEqual("fun foo/3",
+                   f(merl:subst(merl:template(?Q("fun foo/9091")),
+                                [{1, merl:term(3)}]))),
+     ?_assertEqual("[42]",
+                   f(merl:subst(merl:template(?Q("[_@foo]")),
+                                [{foo, merl:term(42)}]))),
+     ?_assertEqual("[foo, bar]",
+                   f(merl:subst(merl:template(?Q("[_@foo]")),
+                                [{foo, [merl:term(foo),merl:term(bar)]}]))),
+     ?_assertEqual("{fee, fie, foe, fum}",
+                   f(merl:subst(merl:template(?Q("{fee, _@foo, fum}")),
+                                [{foo, [merl:term(fie),merl:term(foe)]}]))),
+     ?_assertEqual("[foo, bar]",
+                   f(merl:subst(merl:template(?Q("[_@@foo]")),
+                                [{foo, [merl:term(foo),merl:term(bar)]}]))),
+     ?_assertEqual("{fee, fie, foe, fum}",
+                   f(merl:subst(merl:template(?Q("{fee, _@@foo, fum}")),
+                                [{foo, [merl:term(fie),merl:term(foe)]}]))),
+     ?_assertEqual("['@@foo']",
+                   f(merl:subst(merl:template(?Q("[_@@foo]")), []))),
+     ?_assertEqual("foo",
+                   f(merl:subst(merl:template(?Q("[_@_foo]")),
+                                [{foo, merl:term(foo)}]))),
+     ?_assertEqual("{'@foo'}",
+                   f(merl:subst(merl:template(?Q("{[_@_foo]}")), []))),
+     ?_assertEqual("{'@@foo'}",
+                   f(merl:subst(merl:template(?Q("{[_@_@foo]}")), []))),
+     ?_assertEqual("-export([foo/1, bar/2]).",
+                   f(merl:subst(merl:template(?Q("-export(['@_@foo'/0]).")),
+                                [{foo, [erl_syntax:arity_qualifier(
+                                          merl:term(foo),
+                                          merl:term(1)),
+                                        erl_syntax:arity_qualifier(
+                                          merl:term(bar),
+                                          merl:term(2))
+                                       ]}
+                                ])))
+    ].
+
+match_test_() ->
+    [?_assertEqual({ok, []}, merl:match(?Q("foo"), ?Q("foo"))),
+     ?_assertEqual(error,    merl:match(?Q("foo"), ?Q("bar"))),
+     ?_assertEqual({ok,[]},  merl:match(?Q("{foo,42}"), ?Q("{foo,42}"))),
+     ?_assertEqual(error,    merl:match(?Q("{foo,42}"), ?Q("{foo,bar}"))),
+     ?_assertEqual({ok,[]},  merl:match(?Q("[foo,[42]]"), ?Q("[foo,[42]]"))),
+     ?_assertEqual(error,    merl:match(?Q("[foo,[42]]"), ?Q("[foo,{42}]"))),
+     ?_assertEqual({ok,[]},  merl:match(?Q("[foo,[_@_]]"),
+                                        ?Q("[foo,[42]]"))),
+     ?_assertEqual({ok,[]},  merl:match(?Q("[foo,[9090]]"),
+                                        ?Q("[foo,[42]]"))),
+     ?_assertEqual({ok,[]},  merl:match(?Q("{_@_,[_@_,2]}"),
+                                        ?Q("{foo,[1,2]}"))),
+     ?_assertEqual(error,    merl:match(?Q("{_@_,[_@_,2]}"),
+                                        ?Q("{foo,[1,3]}"))),
+     ?_assertEqual({ok,[]},  merl:match(?Q("[foo,[9090,9090]]"),
+                                        ?Q("[foo,[1,2]]"))),
+     ?_assertEqual(error,    merl:match(?Q("[foo,[9090,9090]]"),
+                                        ?Q("[foo,[1,2,3]]"))),
+     ?_assertEqual([{foo,"42"}],
+                   fe(ok(merl:match(?Q("_@foo"), ?Q("42"))))),
+     ?_assertEqual([{foo,"42"}],
+                   fe(ok(merl:match(?Q("{_@foo}"), ?Q("{42}"))))),
+     ?_assertEqual([{1,"0"},{foo,"bar"}],
+                   fe(ok(merl:match(?Q("fun '@foo'/9091"),
+                                    ?Q("fun bar/0"))))),
+     ?_assertEqual([{line,"17"},{text,"\"hello\""}],
+                   fe(ok(merl:match(?Q("{_@line, _@text}"),
+                                    ?Q("{17, \"hello\"}"))))),
+     ?_assertEqual([{line,"17"},{text,"\"hello\""}],
+                   fe(ok(merl:match(?Q("foo(_@line, _@text)"),
+                                    ?Q("foo(17, \"hello\")"))))),
+     ?_assertEqual([{foo,""}],
+                   fe(ok(merl:match(?Q("f(_@@foo)"),
+                                    ?Q("f()"))))),
+     ?_assertEqual([{foo,"fee"}],
+                   fe(ok(merl:match(?Q("f(_@@foo)"),
+                                    ?Q("f(fee)"))))),
+     ?_assertEqual([{foo,"feefiefum"}],
+                   fe(ok(merl:match(?Q("f(_@@foo)"),
+                                    ?Q("f(fee, fie, fum)"))))),
+     ?_assertEqual([{foo,""}],
+                   fe(ok(merl:match(?Q("[_@@foo]"),
+                                    ?Q("[]"))))),
+     ?_assertEqual([{foo,"fee"}],
+                   fe(ok(merl:match(?Q("[_@@foo]"),
+                                    ?Q("[fee]"))))),
+     ?_assertEqual([{foo,"feefiefoefum"}],
+                   fe(ok(merl:match(?Q("[_@@foo]"),
+                                    ?Q("[fee, fie, foe, fum]"))))),
+     ?_assertEqual([{foo,""}],
+                   fe(ok(merl:match(?Q("{_@@foo}"),
+                                    ?Q("{}"))))),
+     ?_assertEqual([{foo,"fee"}],
+                   fe(ok(merl:match(?Q("{_@@foo}"),
+                                    ?Q("{fee}"))))),
+     ?_assertEqual([{foo,"feefiefoefum"}],
+                   fe(ok(merl:match(?Q("{_@@foo}"),
+                                    ?Q("{fee, fie, foe, fum}"))))),
+     ?_assertEqual([{foo,"fie"}],
+                   fe(ok(merl:match(?Q("{fee, _@@foo}"),
+                                    ?Q("{fee, fie}"))))),
+     ?_assertEqual([{foo,"fiefoefum"}],
+                   fe(ok(merl:match(?Q("{fee, _@@foo}"),
+                                    ?Q("{fee, fie, foe, fum}"))))),
+     ?_assertEqual([{foo,"fie"}],
+                   fe(ok(merl:match(?Q("{_@@foo, foe, fum}"),
+                                    ?Q("{fie, foe, fum}"))))),
+     ?_assertEqual([{foo,"feefie"}],
+                   fe(ok(merl:match(?Q("{_@@foo, foe, fum}"),
+                                    ?Q("{fee, fie, foe, fum}"))))),
+     ?_assertEqual([{foo,"fie"}],
+                   fe(ok(merl:match(?Q("{fee, _@@foo, fum}"),
+                                    ?Q("{fee, fie, fum}"))))),
+     ?_assertEqual([{foo,"fiefoe"}],
+                   fe(ok(merl:match(?Q("{fee, _@@foo, fum}"),
+                                    ?Q("{fee, fie, foe, fum}"))))),
+     ?_assertEqual([{foo,"fiefoe"},{post,"fum"},{pre,"fee"}],
+                   fe(ok(merl:match(?Q("{_@pre, _@@foo, _@post}"),
+                                    ?Q("{fee, fie, foe, fum}"))))),
+     ?_assertThrow({error, "multiple glob variables"++_},
+                   fe(ok(merl:match(?Q("{_@@foo, _@@bar}"),
+                                    ?Q("{fee, fie, foe, fum}"))))),
+     ?_assertEqual([],
+                   fe(ok(merl:match(?Q("{fee, _@@_}"),
+                                    ?Q("{fee, fie, foe, fum}"))))),
+     ?_assertEqual([],
+                   fe(ok(merl:match(?Q("{_@@_, foe, fum}"),
+                                    ?Q("{fee, fie, foe, fum}"))))),
+     ?_assertEqual([{post,"fum"},{pre,"fee"}],
+                   fe(ok(merl:match(?Q("{_@pre, _@@_, _@post}"),
+                                    ?Q("{fee, fie, foe, fum}")))))
+    ].
+
+switch_test_() ->
+    [?_assertEqual(42, merl:switch(?Q("foo"), [fun () -> 42 end])),
+     ?_assertEqual(17, merl:switch(?Q("foo"), [fun () -> 17 end,
+                                               fun () -> 42 end])),
+     ?_assertEqual(17, merl:switch(?Q("foo"), [{?Q("foo"),
+                                                fun ([]) -> 17 end},
+                                               fun () -> 42 end])),
+     ?_assertEqual(17,
+                   merl:switch(?Q("foo"), [{?Q("bar"), fun ([]) -> 0 end},
+                                           {?Q("foo"), fun ([]) -> 17 end},
+                                           fun () -> 42 end])),
+     ?_assertEqual([{foo,"17"}],
+                   merl:switch(?Q("{foo,17}"),
+                               [{?Q("{bar, _@foo}"), fun (_) -> 0 end},
+                                {?Q("{foo, _@foo}"), fun fe/1},
+                                fun () -> 42 end])),
+     ?_assertEqual(17,
+                   merl:switch(?Q("{foo, 17}"),
+                               [{?Q("{foo, _@foo}"),
+                                 fun ([{foo, X}]) -> f(X) =:= "17" end,
+                                 fun (_) -> 17 end},
+                                fun () -> 42 end])),
+     ?_assertEqual([{foo,"17"}],
+                   merl:switch(?Q("{foo, 17}"),
+                               [{?Q("{foo, _@foo}"),
+                                 fun ([{foo, X}]) -> f(X) =:= "42" end,
+                                 fun (_) -> 0 end},
+                                {?Q("{foo, _@foo}"), fun fe/1},
+                                fun () -> 42 end])),
+     ?_assertEqual(17,
+                   merl:switch(?Q("{foo, 17}"),
+                               [{?Q("{foo, _@foo}"),
+                                 [{fun ([{foo, X}]) -> f(X) =:= "17" end,
+                                   fun (_) -> 17 end},
+                                  fun (_) -> 0 end]},
+                                fun () -> 42 end])),
+     ?_assertEqual([{foo,"17"}],
+                   merl:switch(?Q("{foo, 17}"),
+                               [{?Q("{foo, _@foo}"),
+                                 [{fun ([{foo, X}]) -> f(X) =:= "42" end,
+                                   fun (_) -> 0 end},
+                                  fun fe/1]},
+                                fun () -> 42 end]))
+    ].
+
+-ifndef(MERL_NO_TRANSFORM).
+
+inline_meta_test_() ->
+    [?_assertEqual("{foo}",
+                   f(begin
+                         Foo = ?Q("foo"),
+                         ?Q("{_@Foo}")
+                     end)),
+     ?_assertEqual("{foo, '@bar'}",
+                   f(begin
+                         Foo = ?Q("foo"),
+                         ?Q("{_@Foo,_@bar}")
+                     end)),
+     ?_assertEqual("{foo, '@bar'}",
+                   f(begin
+                         Q1 = ?Q("foo"),
+                         ?Q("{90919,_@bar}")
+                     end))
+    ].
+
+inline_meta_autoabstract_test_() ->
+    [?_assertEqual("{foo}",
+                   f(begin
+                         Foo = foo,
+                         ?Q("{_@Foo@}")
+                     end)),
+     ?_assertEqual("{foo, '@bar@'}",
+                   f(begin
+                         Foo = foo,
+                         ?Q("{_@Foo@,_@bar@}")
+                     end)),
+     ?_assertEqual("{foo, '@bar@'}",
+                   f(begin
+                         Q1 = foo,
+                         ?Q("{909199,_@bar@}")
+                     end))
+    ].
+
+meta_match_test_() ->
+    [?_assertEqual("{[bar], baz()}",
+                   f(begin
+                         Tree = ?Q("{foo, [bar], baz()}"),
+                         ?Q("{foo, _@Bar, '@Baz'}") = Tree,
+                         ?Q("{_@Bar, _@Baz}")
+                     end)),
+     ?_assertEqual("{[bar], baz()}",
+                   f(begin
+                         Tree = ?Q("{foo, [bar], baz()}"),
+                         ?Q("{foo, 90919, 90929}") = Tree,
+                         ?Q("{_@Q1, _@Q2}")
+                     end)),
+     ?_assertError({badmatch,error},
+                   f(begin
+                         Tree = ?Q("{foo, [bar], baz()}"),
+                         ?Q("{fie, _@Bar, '@Baz'}") = Tree,
+                         ?Q("{_@Bar, _@Baz}")
+                     end))
+    ].
+
+meta_case_test_() ->
+    [?_assertEqual("{[bar], baz()}",
+                   f(begin
+                         Tree = ?Q("{foo, [bar], baz()}"),
+                         case Tree of
+                             ?Q("{foo, _@Bar, '@Baz'}") -> ?Q("{_@Bar, _@Baz}")
+                         end
+                     end)),
+     ?_assertEqual("{foo, [bar], baz()}",
+                   f(begin
+                         Tree = ?Q("{foo, [bar], baz()}"),
+                         case Tree of
+                             ?Q("{fie, _@Bar, '@Baz'}") -> ?Q("{_@Bar, _@Baz}");
+                             _ -> Tree
+                         end
+                     end)),
+     ?_assertError(merl_switch_clause,
+                   f(begin
+                         Tree = ?Q("{foo, [bar], baz()}"),
+                         case Tree of
+                             ?Q("{fie, _@Bar, '@Baz'}") -> ?Q("{_@Bar, _@Baz}")
+                         end
+                     end)),
+     ?_assertEqual("{foo, 4}",
+                   f(begin
+                         Tree = ?Q("{foo, 3}"),
+                         case Tree of
+                             ?Q("{foo, _@N}") ->
+                                 N1 = erl_syntax:concrete(N) + 1,
+                                 ?Q("{foo, _@N1@}");
+                             _ -> Tree
+                         end
+                     end)),
+     ?_assertEqual("-export([f/4]).",
+                   f(begin
+                         Tree = ?Q("-export([f/3])."),
+                         case Tree of
+                             ?Q("-export([f/90919]).") ->
+                                 Q2 = erl_syntax:concrete(Q1) + 1,
+                                 ?Q("-export([f/909299]).");
+                             _ -> Tree
+                         end
+                     end)),
+     ?_assertEqual("{1, [bar], baz()}",
+                   f(begin
+                         Tree = ?Q("{foo, [bar], baz()}"),
+                         case Tree of
+                             ?Q("{foo, _@Bar, '@Baz'}") ->
+                                 ?Q("{1, _@Bar, _@Baz}");
+                             ?Q("{fie, _@Bar, '@Baz'}") ->
+                                 ?Q("{2, _@Bar, _@Baz}");
+                             _ -> Tree
+                         end
+                     end)),
+     ?_assertEqual("{2, [bar], baz()}",
+                   f(begin
+                         Tree = ?Q("{fie, [bar], baz()}"),
+                         case Tree of
+                             ?Q("{foo, _@Bar, '@Baz'}") ->
+                                 ?Q("{1, _@Bar, _@Baz}");
+                             ?Q("{fie, _@Bar, '@Baz'}") ->
+                                 ?Q("{2, _@Bar, _@Baz}");
+                             _ -> Tree
+                         end
+                     end)),
+     ?_assertEqual("{2, baz()}",
+                   f(begin
+                         Tree = ?Q("{foo, [bar], baz()}"),
+                         case Tree of
+                             ?Q("{foo, [_@Bar], '@Baz'}")
+                               when erl_syntax:is_atom(Bar, foo) ->
+                                 ?Q("{1, _@Baz}");
+                             ?Q("{foo, [_@Bar], '@Baz'}")
+                               when erl_syntax:is_atom(Bar, bar) ->
+                                 ?Q("{2, _@Baz}");
+                             ?Q("{foo, [_@Bar], '@Baz'}") ->
+                                 ?Q("{3, _@Baz}");
+                             _ -> Tree
+                         end
+                     end)),
+     ?_assertEqual("{2, 42}",
+                   f(begin
+                         Tree = ?Q("{foo, [bar], 42}"),
+                         case Tree of
+                             ?Q("{foo, [_@Bar], '@Baz'}")
+                               when erl_syntax:is_atom(Bar, bar),
+                                    erl_syntax:is_integer(Baz, 17) ->
+                                 ?Q("{1, _@Bar}");
+                             ?Q("{foo, [_@Bar], '@Baz'}")
+                               when erl_syntax:is_atom(Bar, bar),
+                                    erl_syntax:is_integer(Baz, 42) ->
+                                 ?Q("{2, _@Baz}");
+                             ?Q("{foo, [_@Bar], '@Baz'}") ->
+                                 ?Q("{3, _@Baz}");
+                             _ -> Tree
+                         end
+                     end)),
+     ?_assertEqual("{2, 42}",
+                   f(begin
+                         Tree = ?Q("{foo, [baz], 42}"),
+                         case Tree of
+                             ?Q("{foo, [_@Bar], '@Baz'}")
+                               when erl_syntax:is_atom(Bar, bar),
+                                    erl_syntax:is_integer(Baz, 17)
+                                    ; erl_syntax:is_atom(Bar, baz),
+                                    erl_syntax:is_integer(Baz, 17) ->
+                                 ?Q("{1, _@Bar}");
+                             ?Q("{foo, [_@Bar], '@Baz'}")
+                               when erl_syntax:is_atom(Bar, bar),
+                                    erl_syntax:is_integer(Baz, 42)
+                                    ; erl_syntax:is_atom(Bar, baz),
+                                    erl_syntax:is_integer(Baz, 42) ->
+                                 ?Q("{2, _@Baz}");
+                             ?Q("{foo, [_@Bar], '@Baz'}") ->
+                                 ?Q("{3, _@Baz}");
+                             _ -> Tree
+                         end
+                    end)),
+     ?_assertEqual("{2, foo, Bar, Baz, Bar(), Baz()}",
+                   f(begin
+                         Tree = ?Q("foo(Bar, Baz) -> Bar(), Baz()."),
+                         case Tree of
+                             ?Q("'@Func'(_@Args) -> _@Body.") ->
+                                 ?Q("{1, _@Func, _@Args, _@Body}");
+                             ?Q("'@Func'(_@@Args) -> _@@Body.") ->
+                                 ?Q("{2, _@Func, _@Args, _@Body}");
+                             ?Q("'@Func'(_@Args, Baz) -> _@Body1, _@Body2.") ->
+                                 ?Q("{3, _@Func, _@Args, _@Body1, _@Body2}")
+                         end
+                     end))
+    ].
+
+-endif.
diff --git a/lib/syntax_tools/src/merl_transform.erl b/lib/syntax_tools/src/merl_transform.erl
new file mode 100644
index 0000000000..66b06c8137
--- /dev/null
+++ b/lib/syntax_tools/src/merl_transform.erl
@@ -0,0 +1,262 @@
+%% ---------------------------------------------------------------------
+%% Licensed under the Apache License, Version 2.0 (the "License"); you may
+%% not use this file except in compliance with the License. You may obtain
+%% a copy of the License at <http://www.apache.org/licenses/LICENSE-2.0>
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% @author Richard Carlsson <[email protected]>
+%% @copyright 2012-2015 Richard Carlsson
+%% @doc Parse transform for merl. Enables the use of automatic metavariables
+%% and using quasi-quotes in matches and case switches. Also optimizes calls
+%% to functions in `merl' by partially evaluating them, turning strings to
+%% templates, etc., at compile-time.
+%%
+%% Using `-include_lib("syntax_tools/include/merl.hrl").' enables this
+%% transform, unless the macro `MERL_NO_TRANSFORM' is defined first.
+
+-module(merl_transform).
+
+-export([parse_transform/2]).
+
+%% NOTE: We cannot use inline metavariables or any other parse transform
+%% features in this module, because it must be possible to compile it with
+%% the parse transform disabled!
+-include("merl.hrl").
+
+%% TODO: unroll calls to switch? it will probably get messy
+
+%% TODO: use Igor to make resulting code independent of merl at runtime?
+
+parse_transform(Forms, _Options) ->
+    erl_syntax:revert_forms(expand(erl_syntax:form_list(Forms))).
+
+expand(Tree0) ->
+    Tree = pre(Tree0),
+    post(case erl_syntax:subtrees(Tree) of
+             [] ->
+                 Tree;
+             Gs ->
+                 erl_syntax:update_tree(Tree,
+                                        [[expand(T) || T <- G] || G <- Gs])
+         end).
+
+pre(T) ->
+    merl:switch(
+      T,
+      [{?Q("merl:quote(_@line, _@text) = _@expr"),
+        fun ([{expr,_}, {line,Line}, {text,Text}]) ->
+                erl_syntax:is_literal(Text) andalso erl_syntax:is_literal(Line)
+        end,
+        fun ([{expr,Expr}, {line,Line}, {text,Text}]) ->
+                pre_expand_match(Expr, erl_syntax:concrete(Line),
+                                 erl_syntax:concrete(Text))
+        end},
+       {?Q(["case _@expr of",
+            "  merl:quote(_@_, _@text) when _@__@_ -> _@@_; _@_@_ -> 0",
+            "end"]),
+        fun case_guard/1,
+        fun (As) -> case_body(As, T) end},
+       fun () -> T end
+      ]).
+
+case_guard([{expr,_}, {text,Text}]) ->
+    erl_syntax:is_literal(Text).
+
+case_body([{expr,Expr}, {text,_Text}], T) ->
+    pre_expand_case(Expr, erl_syntax:case_expr_clauses(T),
+                    erl_syntax:get_pos(T)).
+
+post(T) ->
+    merl:switch(
+      T,
+      [{?Q("merl:_@function(_@@args)"),
+        [{fun ([{args, As}, {function, F}]) ->
+                  lists:all(fun erl_syntax:is_literal/1, [F|As])
+          end,
+          fun ([{args, As}, {function, F}]) ->
+                  Line = erl_syntax:get_pos(F),
+                  [F1|As1] = lists:map(fun erl_syntax:concrete/1, [F|As]),
+                  eval_call(Line, F1, As1, T)
+          end},
+         fun ([{args, As}, {function, F}]) ->
+                 merl:switch(
+                   F,
+                   [{?Q("qquote"), fun ([]) -> expand_qquote(As, T, 1) end},
+                    {?Q("subst"), fun ([]) -> expand_template(F, As, T) end},
+                    {?Q("match"), fun ([]) -> expand_template(F, As, T) end},
+                    fun () -> T end
+                   ])
+         end]},
+       fun () -> T end]).
+
+expand_qquote([Line, Text, Env], T, _) ->
+    case erl_syntax:is_literal(Line) of
+        true ->
+            expand_qquote([Text, Env], T, erl_syntax:concrete(Line));
+        false ->
+            T
+    end;
+expand_qquote([Text, Env], T, Line) ->
+    case erl_syntax:is_literal(Text) of
+        true ->
+            As = [Line, erl_syntax:concrete(Text)],
+            %% expand further if possible
+            expand(merl:qquote(Line, "merl:subst(_@tree, _@env)",
+                               [{tree, eval_call(Line, quote, As, T)},
+                                {env, Env}]));
+        false ->
+            T
+    end;
+expand_qquote(_As, T, _StartPos) ->
+    T.
+
+expand_template(F, [Pattern | Args], T) ->
+    case erl_syntax:is_literal(Pattern) of
+        true ->
+            Line = erl_syntax:get_pos(Pattern),
+            As = [erl_syntax:concrete(Pattern)],
+            merl:qquote(Line, "merl:_@function(_@pattern, _@args)",
+               [{function, F},
+                {pattern, eval_call(Line, template, As, T)},
+                {args, Args}]);
+        false ->
+            T
+    end;
+expand_template(_F, _As, T) ->
+    T.
+
+eval_call(Line, F, As, T) ->
+    try apply(merl, F, As) of
+        T1 when F =:= quote ->
+            %% lift metavariables in a template to Erlang variables
+            Template = merl:template(T1),
+            Vars = merl:template_vars(Template),
+            case lists:any(fun is_inline_metavar/1, Vars) of
+                true when is_list(T1) ->
+                    merl:qquote(Line, "merl:tree([_@template])",
+                                [{template, merl:meta_template(Template)}]);
+                true ->
+                    merl:qquote(Line, "merl:tree(_@template)",
+                                [{template, merl:meta_template(Template)}]);
+                false ->
+                    merl:term(T1)
+            end;
+        T1 ->
+            merl:term(T1)
+    catch
+        throw:_Reason -> T
+    end.
+
+pre_expand_match(Expr, Line, Text) ->
+    {Template, Out, _Vars} = rewrite_pattern(Line, Text),
+    merl:qquote(Line, "{ok, _@out} = merl:match(_@template, _@expr)",
+                [{expr, Expr},
+                 {out, Out},
+                 {template, erl_syntax:abstract(Template)}]).
+
+rewrite_pattern(Line, Text) ->
+    %% we must rewrite the metavariables in the pattern to use lowercase,
+    %% and then use real matching to bind the Erlang-level variables
+    T0 = merl:template(merl:quote(Line, Text)),
+    Vars = [V || V <- merl:template_vars(T0), is_inline_metavar(V)],
+    {merl:alpha(T0, [{V, var_to_tag(V)} || V <- Vars]),
+     erl_syntax:list([erl_syntax:tuple([erl_syntax:abstract(var_to_tag(V)),
+                                        erl_syntax:variable(var_name(V))])
+                      || V <- Vars]),
+     Vars}.
+
+var_name(V) when is_integer(V) ->
+    V1 = if V > 99, (V rem 100) =:= 99 ->
+                 V div 100;
+            V > 9, (V rem 10) =:= 9 ->
+                 V div 10;
+            true -> V
+         end,
+    list_to_atom("Q" ++ integer_to_list(V1));
+var_name(V) -> V.
+
+var_to_tag(V) when is_integer(V) -> V;
+var_to_tag(V) ->
+    list_to_atom(string:to_lower(atom_to_list(V))).
+
+pre_expand_case(Expr, Clauses, Line) ->
+    merl:qquote(Line, "merl:switch(_@expr, _@clauses)",
+                [{clauses, erl_syntax:list([pre_expand_case_clause(C)
+                                            || C <- Clauses])},
+                 {expr, Expr}]).
+
+pre_expand_case_clause(T) ->
+    %% note that the only allowed non ``?Q(...) -> ...'' clause is ``_ -> ...''
+    merl:switch(
+      T,
+      [{?Q("(merl:quote(_@line, _@text)) when _@__@guard -> _@@body"),
+        fun ([{body,_}, {guard,_}, {line,Line}, {text,Text}]) ->
+                erl_syntax:is_literal(Text) andalso erl_syntax:is_literal(Line)
+        end,
+        fun ([{body,Body}, {guard,Guard}, {line,Line}, {text,Text}]) ->
+                pre_expand_case_clause(Body, Guard, erl_syntax:concrete(Line),
+                                       erl_syntax:concrete(Text))
+        end},
+       {?Q("_ -> _@@body"),
+        fun (Env) -> merl:qquote("fun () -> _@body end", Env) end}
+      ]).
+
+pre_expand_case_clause(Body, Guard, Line, Text) ->
+    %% this is similar to a meta-match ``?Q("...") = Term''
+    %% (note that the guards may in fact be arbitrary expressions)
+    {Template, Out, Vars} = rewrite_pattern(Line, Text),
+    GuardExprs = rewrite_guard(Guard),
+    Param = [{body, Body},
+             {guard,GuardExprs},
+             {out, Out},
+             {template, erl_syntax:abstract(Template)},
+             {unused, dummy_uses(Vars)}],
+    case GuardExprs of
+        [] ->
+            merl:qquote(Line, ["{_@template, ",
+                               " fun (_@out) -> _@unused, _@body end}"],
+                        Param);
+        _ ->
+            merl:qquote(Line, ["{_@template, ",
+                               " fun (_@out) -> _@unused, _@guard end, ",
+                               " fun (_@out) -> _@unused, _@body end}"],
+                        Param)
+    end.
+
+%% We have to insert dummy variable uses at the beginning of the "guard" and
+%% "body" function bodies to avoid warnings for unused variables in the
+%% generated code. (Expansions at the Erlang level can't be marked up as
+%% compiler generated to allow later compiler stages to ignore them.)
+dummy_uses(Vars) ->
+    [?Q("_ = _@var", [{var, erl_syntax:variable(var_name(V))}])
+     || V <- Vars].
+
+rewrite_guard([]) -> [];
+rewrite_guard([D]) -> [make_orelse(erl_syntax:disjunction_body(D))].
+
+make_orelse([]) -> [];
+make_orelse([C]) -> make_andalso(erl_syntax:conjunction_body(C));
+make_orelse([C | Cs]) ->
+    ?Q("_@expr orelse _@rest",
+       [{expr, make_andalso(erl_syntax:conjunction_body(C))},
+        {rest, make_orelse(Cs)}]).
+
+make_andalso([E]) -> E;
+make_andalso([E | Es]) ->
+    ?Q("_@expr andalso _@rest", [{expr, E}, {rest, make_andalso(Es)}]).
+
+is_inline_metavar(Var) when is_atom(Var) ->
+    is_erlang_var(atom_to_list(Var));
+is_inline_metavar(Var) when is_integer(Var) ->
+    Var > 9 andalso (Var rem 10) =:= 9;
+is_inline_metavar(_) -> false.
+
+is_erlang_var([C|_]) when C >= $A, C =< $Z ; C >= $À, C =< $Þ, C /= $× ->
+    true;
+is_erlang_var(_) ->
+    false.
diff --git a/lib/syntax_tools/src/syntax_tools.app.src b/lib/syntax_tools/src/syntax_tools.app.src
index 83dcb5fe23..dd4ac46055 100644
--- a/lib/syntax_tools/src/syntax_tools.app.src
+++ b/lib/syntax_tools/src/syntax_tools.app.src
@@ -11,8 +11,11 @@
 	     erl_syntax_lib,
 	     erl_tidy,
 	     igor,
+             merl,
+             merl_transform,
 	     prettypr]},
   {registered,[]},
   {applications, [stdlib]},
   {env, []},
-  {runtime_dependencies, ["stdlib-2.0","kernel-3.0","erts-6.0"]}]}.
+  {runtime_dependencies,
+   ["compiler-6.0","erts-6.0","kernel-3.0","stdlib-2.5"]}]}.
diff --git a/lib/syntax_tools/test/Makefile b/lib/syntax_tools/test/Makefile
index f67e3f8984..569c044b1a 100644
--- a/lib/syntax_tools/test/Makefile
+++ b/lib/syntax_tools/test/Makefile
@@ -6,7 +6,8 @@ include $(ERL_TOP)/make/$(TARGET)/otp.mk
 # ----------------------------------------------------
 
 MODULES= \
-	syntax_tools_SUITE
+	syntax_tools_SUITE \
+	merl_SUITE
 
 ERL_FILES= $(MODULES:%=%.erl)
 
diff --git a/lib/syntax_tools/test/merl_SUITE.erl b/lib/syntax_tools/test/merl_SUITE.erl
new file mode 100644
index 0000000000..08b0f7a696
--- /dev/null
+++ b/lib/syntax_tools/test/merl_SUITE.erl
@@ -0,0 +1,91 @@
+%% ``The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved via the world wide web at http://www.erlang.org/.
+%% 
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%% 
+%% The Initial Developer of the Original Code is Ericsson Utvecklings AB.
+%% Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings
+%% AB. All Rights Reserved.''
+%% 
+-module(merl_SUITE).
+
+-include_lib("test_server/include/test_server.hrl").
+
+%% include the Merl header file
+-include_lib("syntax_tools/include/merl.hrl").
+
+%% for assert macros
+-include_lib("eunit/include/eunit.hrl").
+
+%% Test server specific exports
+-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, 
+	 init_per_group/2,end_per_group/2]).
+
+%% Test cases
+-export([merl_smoke_test/1]).
+
+suite() -> [{ct_hooks,[ts_install_cth]}].
+
+all() ->
+    [merl_smoke_test].
+
+groups() -> 
+    [].
+
+init_per_suite(Config) ->
+    Config.
+
+end_per_suite(_Config) ->
+    ok.
+
+init_per_group(_GroupName, Config) ->
+    Config.
+
+end_per_group(_GroupName, Config) ->
+    Config.
+
+-define(tokens2str(X), ??X).
+
+merl_smoke_test(Config) when is_list(Config) ->
+    ?assertThrow({error, "1: syntax error before: '{'" ++ _},
+                 f(merl:quote("{"))),
+    ?assertEqual(tuple, erl_syntax:type(merl:term({}))),
+    ?assertEqual("{foo, 42}", f(merl:term({foo, 42}))),
+    ?assertEqual("f(X) -> {ok, X}.", f(?Q("f(X) -> {ok, X}."))),
+    ?assertEqual("{foo, 42}", f(?Q("{foo, 42}"))),
+    ?assertEqual("2 + 2", f(?Q("2 + 2"))),
+    ?assertEqual("%% comment preserved\n{foo, 42}",
+                 f(?Q(["%% comment preserved", "{foo, 42}"]))),
+    ?assertEqual("'@foo'", f(merl:tree(merl:template(?Q("'@foo'"))))),
+    ?assertEqual("42", f(merl:subst(?Q("_@foo"), [{foo, merl:term(42)}]))),
+    ?assertEqual({ok, []}, merl:match(?Q("foo"), ?Q("foo"))),
+    ?assertEqual(42, merl:switch(?Q("foo"), [fun () -> 42 end])),
+    ?assertEqual("{foo}", f(begin Foo = ?Q("foo"), ?Q("{_@Foo}") end)),
+    ?assertEqual("{foo}", f(begin Foo = foo, ?Q("{_@Foo@}") end)),
+    ?assertEqual("{[bar], baz()}",
+                 f(begin
+                       Tree = ?Q("{foo, [bar], baz()}"),
+                       ?Q("{foo, _@Bar, '@Baz'}") = Tree,
+                       ?Q("{_@Bar, _@Baz}")
+                   end)),
+    ?assertEqual("{[bar], baz()}",
+                 f(begin
+                       Tree = ?Q("{foo, [bar], baz()}"),
+                       case Tree of
+                           ?Q("{foo, _@Bar, '@Baz'}") -> ?Q("{_@Bar, _@Baz}")
+                       end
+                   end)),
+    ok.
+
+%% utilities
+
+f(Ts) when is_list(Ts) ->
+    lists:flatmap(fun erl_prettypr:format/1, Ts);
+f(T) ->
+    erl_prettypr:format(T).
diff --git a/lib/syntax_tools/vsn.mk b/lib/syntax_tools/vsn.mk
index 1c42ef0ddb..403e90196e 100644
--- a/lib/syntax_tools/vsn.mk
+++ b/lib/syntax_tools/vsn.mk
@@ -1 +1 @@
-SYNTAX_TOOLS_VSN = 1.6.18
+SYNTAX_TOOLS_VSN = 1.7
diff --git a/lib/test_server/doc/src/Makefile b/lib/test_server/doc/src/Makefile
index 8c7fa99886..421079ac94 100644
--- a/lib/test_server/doc/src/Makefile
+++ b/lib/test_server/doc/src/Makefile
@@ -27,6 +27,10 @@ include ../../vsn.mk
 VSN=$(TEST_SERVER_VSN)
 APPLICATION=test_server
 
+DOC_EXTRA_FRONT_PAGE_INFO=Important note: \
+The Test Server application is obsolete and will be removed \
+in the next major OTP release
+
 # ----------------------------------------------------
 # Release directory specification
 # ----------------------------------------------------
diff --git a/lib/test_server/doc/src/example_chapter.xml b/lib/test_server/doc/src/example_chapter.xml
index 0ebc85da09..6bc0cfaebe 100644
--- a/lib/test_server/doc/src/example_chapter.xml
+++ b/lib/test_server/doc/src/example_chapter.xml
@@ -47,7 +47,7 @@
 -define(default_timeout, ?t:minutes(1)).
 
 init_per_testcase(_Case, Config) ->
-    ?line Dog=?t:timetrap(?default_timeout),
+    Dog=?t:timetrap(?default_timeout),
     [{watchdog, Dog}|Config].
 end_per_testcase(_Case, Config) ->
     Dog=?config(watchdog, Config),
@@ -72,8 +72,8 @@ not_started_func1(suite) ->
 not_started_func1(doc) ->
     ["Testing function 1 when application is not started"].
 not_started_func1(Config) when list(Config) ->
-    ?line {error, not_started} = myapp:func1(dummy_ref,1),
-    ?line {error, not_started} = myapp:func1(dummy_ref,2),
+    {error, not_started} = myapp:func1(dummy_ref,1),
+    {error, not_started} = myapp:func1(dummy_ref,2),
     ok.
 
 not_started_func2(suite) ->
@@ -81,8 +81,8 @@ not_started_func2(suite) ->
 not_started_func2(doc) ->
     ["Testing function 2 when application is not started"].
 not_started_func2(Config) when list(Config) ->
-    ?line {error, not_started} = myapp:func2(dummy_ref,1),
-    ?line {error, not_started} = myapp:func2(dummy_ref,2),
+    {error, not_started} = myapp:func2(dummy_ref,1),
+    {error, not_started} = myapp:func2(dummy_ref,2),
     ok.
 
 
@@ -90,7 +90,7 @@ not_started_func2(Config) when list(Config) ->
 start(doc) ->
     ["Testing start of my application."];
 start(Config) when list(Config) ->
-    ?line Ref = myapp:start(),
+    Ref = myapp:start(),
     case erlang:whereis(my_main_process) of
       Pid when pid(Pid) -> 
          [{myapp_ref,Ref}|Config];
@@ -105,9 +105,9 @@ func1(suite) ->
 func1(doc) ->
     ["Test that func1 returns ok when argument is 1 and error if argument is 2"];
 func1(Config) when list(Config) ->
-    ?line Ref = ?config(myapp_ref,Config),
-    ?line ok = myapp:func1(Ref,1),
-    ?line error = myapp:func1(Ref,2),
+    Ref = ?config(myapp_ref,Config),
+    ok = myapp:func1(Ref,1),
+    error = myapp:func1(Ref,2),
     ok.
 
 func2(suite) ->
@@ -115,17 +115,17 @@ func2(suite) ->
 func2(doc) ->
     ["Test that func1 returns ok when argument is 3 and error if argument is 4"];
 func2(Config) when list(Config) ->
-    ?line Ref = ?config(myapp_ref,Config),
-    ?line ok = myapp:func2(Ref,3),
-    ?line error = myapp:func2(Ref,4),
+    Ref = ?config(myapp_ref,Config),
+    ok = myapp:func2(Ref,3),
+    error = myapp:func2(Ref,4),
     ok.
 
 %% No specification clause needed for a cleanup function in a conf case!!!
 stop(doc) ->
     ["Testing termination of my application"];
 stop(Config) when list(Config) ->
-    ?line Ref = ?config(myapp_ref,Config),
-    ?line ok = myapp:stop(Ref),
+    Ref = ?config(myapp_ref,Config),
+    ok = myapp:stop(Ref),
     case erlang:whereis(my_main_process) of
       undefined -> 
          lists:keydelete(myapp_ref,1,Config);
diff --git a/lib/test_server/doc/src/test_server.xml b/lib/test_server/doc/src/test_server.xml
index ed5569e1fe..b98e434c03 100644
--- a/lib/test_server/doc/src/test_server.xml
+++ b/lib/test_server/doc/src/test_server.xml
@@ -811,46 +811,12 @@ Only valid for peer nodes. Note that slave nodes always
     </func>
   </funcs>
 
-  <section>
-    <title>TEST SUITE LINE NUMBERS</title>
-    <p>If a test case fails, the test server can report the exact line
-      number at which it failed. There are two ways of doing this,
-      either by using the <c>line</c> macro or by using the
-      <c>test_server_line</c> parse transform.
-      </p>
-    <p>The <c>line</c> macro is described under TEST SUITE SUPPORT
-      MACROS below. The <c>line</c> macro will only report the last line
-      executed when a test case failed.
-      </p>
-    <p>The <c>test_server_line</c> parse transform is activated by
-      including the headerfile <c>test_server_line.hrl</c> in the test
-      suite. When doing this, it is important that the
-      <c>test_server_line</c> module is in the code path of the erlang
-      node compiling the test suite. The parse transform will report a
-      history of a maximum of 10 lines when a test case
-      fails. Consecutive lines in the same function are not shown.
-      </p>
-    <p>The attribute <c>-no_lines(FuncList).</c> can be used in the
-      test suite to exclude specific functions from the parse
-      transform. This is necessary e.g. for functions that are executed
-      on old (i.e. &lt;R10B) OTP releases. <c>FuncList = [{Func,Arity}]</c>.
-      </p>
-    <p>If both the <c>line</c> macro and the parse transform is used in
-      the same module, the parse transform will overrule the macro.
-      </p>
-  </section>
 
   <section>
     <title>TEST SUITE SUPPORT MACROS</title>
     <p>There are some macros defined in the <c>test_server.hrl</c>
       that are quite useful for test suite programmers:
       </p>
-    <p>The <em>line</em> macro, is quite
-      essential when writing test cases. It tells the test server
-      exactly what line of code that is being executed, so that it can
-      report this line back if the test case fails. Use this macro at
-      the beginning of every test case line of code.
-      </p>
     <p>The <em>config</em> macro, is used to
       retrieve information from the <c>Config</c> variable sent to all
       test cases. It is used with two arguments, where the first is the
@@ -867,24 +833,20 @@ Only valid for peer nodes. Note that slave nodes always
       <item>Whatever added by conf test cases or
       <c>init_per_testcase/2</c></item>
     </list>
-    <p>Examples of the <c>line</c> and <c>config</c> macros can be
-      seen in the Examples chapter in the user's guide.
-      </p>
-    <p>If the <c>line_trace</c> macro is defined, you will get a
-      timestamp (<c>erlang:now()</c>) in your minor log for each
-      <c>line</c> macro in your suite. This way you can at any time see
-      which line is currently being executed, and when the line was
-      called.
-      </p>
-    <p>The <c>line_trace</c> macro can also be used together with the
-      <c>test_server_line</c> parse transform described above. A
-      timestamp will then be written for each line in the suite, except
-      for functions stated in the <c>-no_lines</c> attribute.
-      </p>
-    <p>The <c>line_trace</c> macro can e.g. be defined as a compile
-      option, like this:
-            <br></br>
-<c>erlc -W -Dline_trace my_SUITE.erl</c></p>
+    <p>Examples of the <c>config</c> macro can be seen in the Examples chapter
+      in the user's guide.</p>
+    <p>The <em>line</em> and <em>line_trace</em> macros are deprecated, see
+      below.</p>
+  </section>
+
+  <section>
+    <title>TEST SUITE LINE NUMBERS</title>
+    <p>In the past, ERTS did not produce line numbers when generating
+      stacktraces, test_server was thus unable to provide them when reporting
+      test failures. It had instead two different mecanisms to do it: either by
+      using the <c>line</c> macro or by using the <c>test_server_line</c> parse
+      transform. Both are deprecated and should not be used in new tests
+      anymore.</p>
   </section>
 </erlref>
 
diff --git a/lib/test_server/include/test_server.hrl b/lib/test_server/include/test_server.hrl
index 36e7e1f83d..f206374116 100644
--- a/lib/test_server/include/test_server.hrl
+++ b/lib/test_server/include/test_server.hrl
@@ -21,7 +21,7 @@
 -line_trace(true).
 -define(line,
 	io:format(lists:concat([?MODULE,",",integer_to_list(?LINE),": ~p"]),
-		  [erlang:now()]),).
+		  [erlang:monotonic_time()-erlang:system_info(start_time)]),).
 -else.
 -define(line,).
 -endif.
diff --git a/lib/test_server/src/erl2html2.erl b/lib/test_server/src/erl2html2.erl
index 50dbbb82ee..b0b5c40965 100644
--- a/lib/test_server/src/erl2html2.erl
+++ b/lib/test_server/src/erl2html2.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1997-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -109,26 +109,26 @@ parse_file(File, InclPath) ->
 	    Error
     end.
 
-parse_preprocessed_file(Epp,File,InCorrectFile) ->
+parse_preprocessed_file(Epp, File, InCorrectFile) ->
     case epp:parse_erl_form(Epp) of
 	{ok,Form} ->
 	    case Form of
 		{attribute,_,file,{File,_}} ->
-		    parse_preprocessed_file(Epp,File,true);
+		    parse_preprocessed_file(Epp, File, true);
 		{attribute,_,file,{_OtherFile,_}} ->
-		    parse_preprocessed_file(Epp,File,false);
-		{function,L,F,A,Cs} when InCorrectFile ->
-		    {CLs,LastCL} = find_clause_lines(Cs, []),
+		    parse_preprocessed_file(Epp, File, false);
+                {function,L,F,A,Cs} when InCorrectFile ->
+                    {CLs,LastCL} = find_clause_lines(Cs, []),
 		    %% tl(CLs) cause we know the start line already
-		    [{atom_to_list(F),A,L,LastCL} | tl(CLs)] ++
-			parse_preprocessed_file(Epp,File,true);
+		    [{atom_to_list(F),A,get_line(L),LastCL} | tl(CLs)] ++
+			parse_preprocessed_file(Epp, File, true);
 		_ ->
-		    parse_preprocessed_file(Epp,File,InCorrectFile)
+		    parse_preprocessed_file(Epp, File, InCorrectFile)
 	    end;
 	{error,Reason={_L,epp,{undefined,_Macro,none}}} ->
 	    throw({error,Reason,InCorrectFile});
 	{error,_Reason} ->
-	    parse_preprocessed_file(Epp,File,InCorrectFile);
+	    parse_preprocessed_file(Epp, File, InCorrectFile);
 	{eof,_Location} ->
 	    []
     end.
@@ -147,10 +147,10 @@ parse_non_preprocessed_file(Epp, File, Location) ->
     case epp_dodger:parse_form(Epp, Location) of
 	{ok,Tree,Location1} ->
 	    try erl_syntax:revert(Tree) of
-		{function,L,F,A,Cs} ->
-		    {CLs,LastCL} = find_clause_lines(Cs, []),
+                {function,L,F,A,Cs} ->
+                    {CLs,LastCL} = find_clause_lines(Cs, []),
 		    %% tl(CLs) cause we know the start line already
-		    [{atom_to_list(F),A,L,LastCL} | tl(CLs)] ++
+                    [{atom_to_list(F),A,get_line(L),LastCL} | tl(CLs)] ++
 			parse_non_preprocessed_file(Epp, File, Location1);
 		_ ->
 		    parse_non_preprocessed_file(Epp, File, Location1)
@@ -163,21 +163,28 @@ parse_non_preprocessed_file(Epp, File, Location) ->
 	    []
     end.
 
+get_line(Anno) ->
+    erl_anno:line(Anno).
+
 %%%-----------------------------------------------------------------
 %%% Find the line number of the last expression in the function
 find_clause_lines([{clause,CL,_Params,_Op,Exprs}], CLs) -> % last clause
     try tuple_to_list(lists:last(Exprs)) of
-	[_Type,ExprLine | _] ->
-	    {lists:reverse([{clause,CL}|CLs]), ExprLine};
+	[_Type,ExprLine | _] when is_integer(ExprLine) ->
+	    {lists:reverse([{clause,get_line(CL)}|CLs]), get_line(ExprLine)};
+	[tree,_ | Exprs1] ->
+	    find_clause_lines([{clause,CL,undefined,undefined,Exprs1}], CLs);
+	[macro,{_var,ExprLine,_MACRO} | _] when is_integer(ExprLine) ->
+	    {lists:reverse([{clause,get_line(CL)}|CLs]), get_line(ExprLine)};
 	_ ->
-	    {lists:reverse([{clause,CL}|CLs]), CL}
+	    {lists:reverse([{clause,get_line(CL)}|CLs]), get_line(CL)}
     catch
 	_:_ ->
-	    {lists:reverse([{clause,CL}|CLs]), CL}
+	    {lists:reverse([{clause,get_line(CL)}|CLs]), get_line(CL)}
     end;
 
 find_clause_lines([{clause,CL,_Params,_Op,_Exprs} | Cs], CLs) ->
-    find_clause_lines(Cs, [{clause,CL}|CLs]).
+    find_clause_lines(Cs, [{clause,get_line(CL)}|CLs]).
 
 %%%-----------------------------------------------------------------
 %%% Add a link target for each line and one for each function definition.
@@ -185,18 +192,18 @@ build_html(SFd,DFd,Encoding,FuncsAndCs) ->
     build_html(SFd,DFd,Encoding,file:read_line(SFd),1,FuncsAndCs,
 	       false,undefined).
 
-%% function start line found
-build_html(SFd,DFd,Enc,{ok,Str},L0,[{F,A,L0,LastL}|FuncsAndCs],
-	   _IsFuncDef,_FAndLastL) ->
-    FALink = test_server_ctrl:uri_encode(F++"-"++integer_to_list(A),utf8),
-    file:write(DFd,["<a name=\"",to_raw_list(FALink,Enc),"\"/>"]),
-    build_html(SFd,DFd,Enc,{ok,Str},L0,FuncsAndCs,true,{F,LastL});
 %% line of last expression in function found
 build_html(SFd,DFd,Enc,{ok,Str},LastL,FuncsAndCs,_IsFuncDef,{F,LastL}) ->
     LastLineLink = test_server_ctrl:uri_encode(F++"-last_expr",utf8),
 	    file:write(DFd,["<a name=\"",
 			    to_raw_list(LastLineLink,Enc),"\"/>"]),
     build_html(SFd,DFd,Enc,{ok,Str},LastL,FuncsAndCs,true,undefined);
+%% function start line found
+build_html(SFd,DFd,Enc,{ok,Str},L0,[{F,A,L0,LastL}|FuncsAndCs],
+	   _IsFuncDef,_FAndLastL) ->
+    FALink = test_server_ctrl:uri_encode(F++"-"++integer_to_list(A),utf8),
+    file:write(DFd,["<a name=\"",to_raw_list(FALink,Enc),"\"/>"]),
+    build_html(SFd,DFd,Enc,{ok,Str},L0,FuncsAndCs,true,{F,LastL});
 build_html(SFd,DFd,Enc,{ok,Str},L,[{clause,L}|FuncsAndCs],
 	   _IsFuncDef,FAndLastL) ->
     build_html(SFd,DFd,Enc,{ok,Str},L,FuncsAndCs,true,FAndLastL);
diff --git a/lib/test_server/src/test_server.app.src b/lib/test_server/src/test_server.app.src
index 173f7075db..bdd9d28444 100644
--- a/lib/test_server/src/test_server.app.src
+++ b/lib/test_server/src/test_server.app.src
@@ -32,7 +32,7 @@
 		test_server_break_process]},
   {applications, [kernel,stdlib]},
   {env, []},
-  {runtime_dependencies, ["tools-2.6.14","stdlib-2.0","runtime_tools-1.8.14",
-			  "observer-2.0","kernel-3.0","inets-5.10",
-			  "syntax_tools-1.6.16","erts-6.0"]}]}.
+  {runtime_dependencies, ["tools-2.8","stdlib-2.5","runtime_tools-1.8.16",
+			  "observer-2.1","kernel-4.0","inets-6.0",
+			  "syntax_tools-1.7","erts-7.0"]}]}.
   
diff --git a/lib/test_server/src/test_server.erl b/lib/test_server/src/test_server.erl
index 1c3352550b..785e687b92 100644
--- a/lib/test_server/src/test_server.erl
+++ b/lib/test_server/src/test_server.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -178,68 +178,35 @@ module_names(Beams) ->
 
 do_cover_compile(Modules) ->
     cover:start(),
-    pmap1(fun(M) -> do_cover_compile1(M) end,lists:usort(Modules)),
+    Sticky = prepare_cover_compile(Modules,[]),
+    R = cover:compile_beam(Modules),
+    [warn_compile(Error) || Error <- R,element(1,Error)=/=ok],
+    [code:stick_mod(M) || M <- Sticky],
     ok.
 
-do_cover_compile1(M) ->
+warn_compile({error,{Reason,Module}}) ->
+    io:fwrite("\nWARNING: Could not cover compile ~ts: ~p\n",
+	      [Module,{error,Reason}]).
+
+%% Make sure all modules are loaded and unstick if sticky
+prepare_cover_compile([M|Ms],Sticky) ->
     case {code:is_sticky(M),code:is_loaded(M)} of
 	{true,_} ->
 	    code:unstick_mod(M),
-	    case cover:compile_beam(M) of
-		{ok,_} ->
-		    ok;
-		Error ->
-		    io:fwrite("\nWARNING: Could not cover compile ~w: ~p\n",
-			      [M,Error])
-	    end,
-	    code:stick_mod(M);
+	    prepare_cover_compile(Ms,[M|Sticky]);
 	{false,false} ->
 	    case code:load_file(M) of
 		{module,_} ->
-		    do_cover_compile1(M);
+		    prepare_cover_compile([M|Ms],Sticky);
 		Error ->
-		    io:fwrite("\nWARNING: Could not load ~w: ~p\n",[M,Error])
+		    io:fwrite("\nWARNING: Could not load ~w: ~p\n",[M,Error]),
+		    prepare_cover_compile(Ms,Sticky)
 	    end;
 	{false,_} ->
-	    case cover:compile_beam(M) of
-		{ok,_} ->
-		    ok;
-		Error ->
-		    io:fwrite("\nWARNING: Could not cover compile ~w: ~p\n",
-			      [M,Error])
-	    end
-    end.
-
-pmap1(Fun,List) ->
-    NTot = length(List),
-    NProcs = erlang:system_info(schedulers) * 2,
-    NPerProc = (NTot div NProcs) + 1,
-
-    {[],Pids} =
-	lists:foldr(
-	  fun(_,{L,Ps}) ->
-		  {L1,L2} = if length(L)>=NPerProc -> lists:split(NPerProc,L);
-			       true -> {L,[]} % last chunk
-			    end,
-		  {P,_Ref} =
-		      spawn_monitor(fun() ->
-					    exit(lists:map(Fun,L1))
-				    end),
-		  {L2,[P|Ps]}
-	  end,
-	  {List,[]},
-	  lists:seq(1,NProcs)),
-    collect(Pids,[]).
-
-collect([],Acc) ->
-    lists:append(Acc);
-collect([Pid|Pids],Acc) ->
-    receive
-	{'DOWN', _Ref, process, Pid, Result} ->
-	    %% collect(lists:delete(Pid,Pids),[Result|Acc])
-	    collect(Pids,[Result|Acc])
-    end.
-
+	    prepare_cover_compile(Ms,Sticky)
+    end;
+prepare_cover_compile([],Sticky) ->
+    Sticky.
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %% cover_analyse(Dir,#cover{level=Analyse,mods=Modules,stop=Stop) ->
@@ -269,45 +236,40 @@ collect([Pid|Pids],Acc) ->
 %% after the test is completed.
 cover_analyse(Dir,#cover{level=Analyse,mods=Modules,stop=Stop}) ->
     io:fwrite(user, "Cover analysing... ", []),
-    DetailsFun =
+    {ATFOk,ATFFail} =
 	case Analyse of
 	    details ->
 		case cover:export(filename:join(Dir,"all.coverdata")) of
 		    ok ->
-			fun(M) ->
-				OutFile = filename:join(Dir,
-							atom_to_list(M) ++
-							".COVER.html"),
-				case cover:analyse_to_file(M,OutFile,[html]) of
-				    {ok,_} ->
-					{file,OutFile};
-				    Error ->
-					Error
-				end
-			end;
+			{result,Ok1,Fail1} =
+			    cover:analyse_to_file(Modules,[{outdir,Dir},html]),
+			{lists:map(fun(OutFile) ->
+					   M = list_to_atom(
+						 filename:basename(
+						   filename:rootname(OutFile,
+								     ".COVER.html")
+						  )
+						),
+					   {M,{file,OutFile}}
+				   end, Ok1),
+			lists:map(fun({Reason,M}) ->
+					  {M,{error,Reason}}
+				  end, Fail1)};
 		    Error ->
-			fun(_) -> Error end
+			{[],lists:map(fun(M) -> {M,Error} end, Modules)}
 		end;
 	    overview ->
 		case cover:export(filename:join(Dir,"all.coverdata")) of
 		    ok ->
-			fun(_) -> undefined end;
+			{[],lists:map(fun(M) -> {M,undefined} end, Modules)};
 		    Error ->
-			fun(_) -> Error end
+			{[],lists:map(fun(M) -> {M,Error} end, Modules)}
 		end
 	end,
-    R = pmap2(
-	  fun(M) ->
-		  case cover:analyse(M,module) of
-		      {ok,{M,{Cov,NotCov}}} ->
-			  {M,{Cov,NotCov,DetailsFun(M)}};
-		      Err ->
-			  io:fwrite(user,
-				    "\nWARNING: Analysis failed for ~w. Reason: ~p\n",
-				    [M,Err]),
-			  {M,Err}
-		  end
-	  end, Modules),
+    {result,AOk,AFail} = cover:analyse(Modules,module),
+    R0 = merge_analysis_results(AOk,ATFOk++ATFFail,[]) ++
+	[{M,{error,Reason}} || {Reason,M} <- AFail],
+    R = lists:sort(R0),
     io:fwrite(user, "done\n\n", []),
 
     case Stop of
@@ -320,19 +282,15 @@ cover_analyse(Dir,#cover{level=Analyse,mods=Modules,stop=Stop}) ->
     end,
     R.
 
-pmap2(Fun,List) ->
-    Collector = self(),
-    Pids = lists:map(fun(E) ->
-			     spawn(fun() ->
-					   Collector ! {res,self(),Fun(E)}
-				   end)
-		     end, List),
-    lists:map(fun(Pid) ->
-		      receive
-			  {res,Pid,Res} ->
-			      Res
-		      end
-	      end, Pids).
+merge_analysis_results([{M,{Cov,NotCov}}|T],ATF,Acc) ->
+    case lists:keytake(M,1,ATF) of
+	{value,{_,R},ATF1} ->
+	    merge_analysis_results(T,ATF1,[{M,{Cov,NotCov,R}}|Acc]);
+	false ->
+	    merge_analysis_results(T,ATF,Acc)
+    end;
+merge_analysis_results([],_,Acc) ->
+    Acc.
 
 do_cover_for_node(Node,CoverFunc) ->
     do_cover_for_node(Node,CoverFunc,true).
@@ -1445,7 +1403,7 @@ lookup_config(Key,Config) ->
 %% stack traces. If the name changes, get_loc/1 must be updated!
 %%
 ts_tc(M, F, A) ->
-    Before = erlang:now(),
+    Before = erlang:monotonic_time(),
     Result = try
 		 apply(M, F, A)
 	     catch
@@ -1465,12 +1423,8 @@ ts_tc(M, F, A) ->
 			     {'EXIT',Reason}
 		     end
 	     end,
-    After = erlang:now(),
-    Elapsed =
-	(element(1,After)*1000000000000
-	 +element(2,After)*1000000+element(3,After)) -
-	(element(1,Before)*1000000000000
-	 +element(2,Before)*1000000+element(3,Before)),
+    After   = erlang:monotonic_time(),
+    Elapsed = erlang:convert_time_unit(After-Before, native, micro_seconds),
     {Elapsed, Result}.
 
 set_loc(Stk) ->
@@ -1889,7 +1843,7 @@ time_ms_check(Other) ->
 time_ms_apply(Func, TCPid, MultAndScale) ->
     {_,GL} = process_info(TCPid, group_leader),
     WhoAmI = self(),				% either TC or IO server
-    T0 = now(),
+    T0 = erlang:monotonic_time(),
     UserTTSup = 
 	spawn(fun() -> 
 		      user_timetrap_supervisor(Func, WhoAmI, TCPid,
@@ -1922,7 +1876,8 @@ user_timetrap_supervisor(Func, Spawner, TCPid, GL, T0, MultAndScale) ->
     receive
 	{UserTT,Result} ->
 	    demonitor(MonRef, [flush]),
-	    Elapsed = trunc(timer:now_diff(now(), T0) / 1000),
+	    T1 = erlang:monotonic_time(),
+	    Elapsed = erlang:convert_time_unit(T1-T0, native, milli_seconds),
 	    try time_ms_check(Result) of
 		TimeVal ->
 		    %% this is the new timetrap value to set (return value
@@ -1990,7 +1945,7 @@ update_user_timetraps(TCPid, StartTime) ->
 			proplists:delete(TCPid, UserTTs)),
 		    proceed;
 		{OtherUserTTSup,OtherStartTime} ->
-		    case timer:now_diff(OtherStartTime, StartTime) of
+		    case OtherStartTime - StartTime of
 			Diff when Diff >= 0 ->
 			    ignore;
 			_ ->
@@ -2445,9 +2400,8 @@ is_release_available(Release) ->
 %%
 
 run_on_shielded_node(Fun, CArgs) when is_function(Fun), is_list(CArgs) ->
-    {A,B,C} = now(),
-    Name = "shielded_node-" ++ integer_to_list(A) ++ "-" ++ integer_to_list(B)
-	++ "-" ++ integer_to_list(C),
+    Nr = erlang:unique_integer([positive]),
+    Name = "shielded_node-" ++ integer_to_list(Nr),
     Node = case start_node(Name, slave, [{args, "-hidden " ++ CArgs}]) of
 	       {ok, N} -> N;
 	       Err -> fail({failed_to_start_shielded_node, Err})
@@ -2506,9 +2460,8 @@ is_cover(Name) ->
 %% A filename of the form <Stem><Number> is generated, and the
 %% function checks that that file doesn't already exist.
 temp_name(Stem) ->
-    {A,B,C} = erlang:now(),
-    RandomNum = A bxor B bxor C,
-    RandomName = Stem ++ integer_to_list(RandomNum),
+    Num = erlang:unique_integer([positive]),
+    RandomName = Stem ++ integer_to_list(Num),
     {ok,Files} = file:list_dir(filename:dirname(Stem)),
     case lists:member(RandomName,Files) of
 	true ->
@@ -2538,11 +2491,7 @@ appup_test(App) ->
 %% Checks wether the module is natively compiled or not.
 
 is_native(Mod) ->
-    case catch Mod:module_info(native_addresses) of
-	[_|_] -> true;
-	_Other -> false
-    end.
-
+    (catch Mod:module_info(native)) =:= true.
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %% comment(String) -> ok
diff --git a/lib/test_server/src/test_server_ctrl.erl b/lib/test_server/src/test_server_ctrl.erl
index 68b03a5987..d0c8a1ebe8 100644
--- a/lib/test_server/src/test_server_ctrl.erl
+++ b/lib/test_server/src/test_server_ctrl.erl
@@ -99,7 +99,7 @@
 -define(last_link, "last_link").
 -define(last_test, "last_test").
 -define(html_ext, ".html").
--define(now, erlang:now()).
+-define(now, os:timestamp()).
 
 -define(void_fun, fun() -> ok end).
 -define(mod_result(X), if X == skip -> skipped;
@@ -1204,19 +1204,14 @@ init_tester(Mod, Func, Args, Dir, Name, {_,_,MinLev}=Levels,
 report_severe_error(Reason) ->
     test_server_sup:framework_call(report, [severe_error,Reason]).
 
-%% timer:tc/3
-ts_tc(M, F, A) ->
-    Before = ?now,
-    Val = (catch apply(M, F, A)),
-    After = ?now,
-    Elapsed = elapsed_time(Before, After),
-    {Elapsed,Val}.
-
-elapsed_time(Before, After) ->
-    (element(1,After)*1000000000000 +
-     element(2,After)*1000000 + element(3,After)) -
-    (element(1,Before)*1000000000000 +
-     element(2,Before)*1000000 + element(3,Before)).
+ts_tc(M,F,A) ->
+    Before = erlang:monotonic_time(),
+    Result = (catch apply(M, F, A)),
+    After   = erlang:monotonic_time(),
+    Elapsed = erlang:convert_time_unit(After-Before,
+				       native,
+				       micro_seconds),
+    {Elapsed, Result}.
 
 start_extra_tools(ExtraTools) ->
     start_extra_tools(ExtraTools, []).
@@ -1812,26 +1807,31 @@ start_minor_log_file1(Mod, Func, LogDir, AbsName, MFA) ->
     io:put_chars(Fd, "<pre>\n"),
 
     SrcListing = downcase(atom_to_list(Mod)) ++ ?src_listing_ext,
-    
-    {Info,Arity} =
-	if Func == init_per_suite; Func == end_per_suite ->
-		{"Config function: ", 1};
-	   Func == init_per_group; Func == end_per_group ->
-		{"Config function: ", 2};
-	   true ->
-		{"Test case: ", 1}
-	end,
 
-    case {filelib:is_file(filename:join(LogDir, SrcListing)),
-	  lists:member(no_src, get(test_server_logopts))} of
-	{true,false} ->
-	    print(Lev, Info ++ "<a href=\"~ts#~ts\">~w:~w/~w</a> "
-		  "(click for source code)\n",
-		  [uri_encode(SrcListing),
-		   uri_encode(atom_to_list(Func)++"-1",utf8),
-		   Mod,Func,Arity]);
+    case get_fw_mod(?MODULE) of
+	Mod when Func == error_in_suite ->
+	    ok;
 	_ ->
-	    print(Lev, Info ++ "~w:~w/~w\n", [Mod,Func,Arity])
+	    {Info,Arity} =
+		if Func == init_per_suite; Func == end_per_suite ->
+			{"Config function: ", 1};
+		   Func == init_per_group; Func == end_per_group ->
+			{"Config function: ", 2};
+		   true ->
+			{"Test case: ", 1}
+		end,
+	    
+	    case {filelib:is_file(filename:join(LogDir, SrcListing)),
+		  lists:member(no_src, get(test_server_logopts))} of
+		{true,false} ->
+		    print(Lev, Info ++ "<a href=\"~ts#~ts\">~w:~w/~w</a> "
+			  "(click for source code)\n",
+			  [uri_encode(SrcListing),
+			   uri_encode(atom_to_list(Func)++"-1",utf8),
+			   Mod,Func,Arity]);
+		_ ->
+		    print(Lev, Info ++ "~w:~w/~w\n", [Mod,Func,Arity])
+	    end
     end,
 
     AbsName.
@@ -2025,7 +2025,7 @@ add_init_and_end_per_suite([{conf,_,_,{Mod,_}}=Case|Cases], LastMod,
     PreCases ++ [Case|add_init_and_end_per_suite(Cases, NextMod,
 						 NextRef, FwMod)];
 add_init_and_end_per_suite([SkipCase|Cases], LastMod, LastRef, FwMod)
-  when element(1,SkipCase) == skip_case ->
+  when element(1,SkipCase) == skip_case;  element(1,SkipCase) == auto_skip_case->
     [SkipCase|add_init_and_end_per_suite(Cases, LastMod, LastRef, FwMod)];
 add_init_and_end_per_suite([{conf,_,_,_}=Case|Cases], LastMod, LastRef, FwMod) ->
     [Case|add_init_and_end_per_suite(Cases, LastMod, LastRef, FwMod)];
@@ -2490,7 +2490,7 @@ run_test_cases_loop([{conf,Ref,Props,{Mod,Func}}|_Cases]=Cs0,
 			file:set_cwd(filename:dirname(get(test_server_dir))),
 			After = ?now,
 			Before = get(test_server_parallel_start_time),
-			Elapsed = elapsed_time(Before, After)/1000000,
+			Elapsed = timer:now_diff(After, Before)/1000000,
 			put(test_server_total_time, Elapsed),
 			{false,tl(Mode0),undefined,Elapsed,
 			 update_status(Ref, OkSkipFail, Status)};
@@ -2499,7 +2499,7 @@ run_test_cases_loop([{conf,Ref,Props,{Mod,Func}}|_Cases]=Cs0,
 			%% parallel group (io buffering is active)
 			OkSkipFail = wait_for_cases(Ref),
 			queue_test_case_io(Ref, self(), 0, Mod, Func),
-			Elapsed = elapsed_time(conf_start(Ref, Mode0),?now)/1000000,
+			Elapsed = timer:now_diff(?now, conf_start(Ref, Mode0))/1000000,
 			case CurrIOHandler of
 			    {Ref,_} ->
 				%% current_io_handler was set by start conf of this
@@ -2516,12 +2516,12 @@ run_test_cases_loop([{conf,Ref,Props,{Mod,Func}}|_Cases]=Cs0,
 		%% this is an end conf for a non-parallel group that's not
 		%% nested under a parallel group, so no need to buffer io
 		{false,tl(Mode0),undefined,
-		 elapsed_time(conf_start(Ref, Mode0),?now)/1000000, Status};
+		 timer:now_diff(?now, conf_start(Ref, Mode0))/1000000, Status};
 	    {Ref,_} ->
 		%% this is an end conf for a non-parallel group nested under
 		%% a parallel group (io buffering is active)
 		queue_test_case_io(Ref, self(), 0, Mod, Func),
-		Elapsed = elapsed_time(conf_start(Ref, Mode0),?now)/1000000,
+		Elapsed = timer:now_diff(?now, conf_start(Ref, Mode0))/1000000,
 		case CurrIOHandler of
 		    {Ref,_} ->
 			%% current_io_handler was set by start conf of this
@@ -2576,7 +2576,7 @@ run_test_cases_loop([{conf,Ref,Props,{Mod,Func}}|_Cases]=Cs0,
 			    %% 1. check the TS_RANDOM_SEED env variable
 			    %% 2. check random_seed in process state
 			    %% 3. use value provided with shuffle option
-			    %% 4. use now() values for seed
+			    %% 4. use timestamp() values for seed
 			    case os:getenv("TS_RANDOM_SEED") of
 				Undef when Undef == false ; Undef == "undefined" ->
 				    case get(test_server_random_seed) of
@@ -3710,8 +3710,8 @@ run_test_case1(Ref, Num, Mod, Func, Args, RunInit,
 		RunDir = filename:dirname(MinorName),
 		Ext =
 		    if Num == 0 ->
-			    {_,S,Us} = now(),
-			    lists:flatten(io_lib:format(".~w.~w", [S,Us]));
+			    Nr = erlang:unique_integer([positive]),
+			    lists:flatten(io_lib:format(".~w", [Nr]));
 		       true ->
 			    lists:flatten(io_lib:format(".~w", [Num]))
 		    end,
@@ -3951,8 +3951,8 @@ progress(skip, CaseNum, Mod, Func, GrName, Loc, Reason, Time,
 	  "<td>~ts~ts</td></tr>\n",
 	  [Time,Color,ReasonStr2,Comment1]),
     FormatLoc = test_server_sup:format_loc(Loc),
-    print(minor, "=== location ~ts", [FormatLoc]),
-    print(minor, "=== reason = ~ts", [ReasonStr1]),
+    print(minor, "=== Location: ~ts", [FormatLoc]),
+    print(minor, "=== Reason: ~ts", [ReasonStr1]),
     Ret;
 
 progress(failed, CaseNum, Mod, Func, GrName, Loc, timetrap_timeout, T,
@@ -3977,8 +3977,8 @@ progress(failed, CaseNum, Mod, Func, GrName, Loc, timetrap_timeout, T,
 	  "<td>~ts</td></tr>\n",
 	  [T/1000,Comment]),
     FormatLoc = test_server_sup:format_loc(Loc),
-    print(minor, "=== location ~ts", [FormatLoc]),
-    print(minor, "=== reason = timetrap timeout", []),
+    print(minor, "=== Location: ~ts", [FormatLoc]),
+    print(minor, "=== Reason: timetrap timeout", []),
     failed;
 
 progress(failed, CaseNum, Mod, Func, GrName, Loc, {testcase_aborted,Reason}, _T,
@@ -4003,13 +4003,13 @@ progress(failed, CaseNum, Mod, Func, GrName, Loc, {testcase_aborted,Reason}, _T,
 	  "<td>~ts</td></tr>\n",
 	  [Comment]),
     FormatLoc = test_server_sup:format_loc(Loc),
-    print(minor, "=== location ~ts", [FormatLoc]),
-    print(minor, "=== reason = {testcase_aborted,~p}", [Reason]),
+    print(minor, "=== Location: ~ts", [FormatLoc]),
+    print(minor, "=== Reason: {testcase_aborted,~p}", [Reason]),
     failed;
 
 progress(failed, CaseNum, Mod, Func, GrName, unknown, Reason, Time,
 	 Comment0, {St0,St1}) ->
-    print(major, "=result        failed: ~p, ~w", [Reason,unknown]),
+    print(major, "=result        failed: ~p, ~w", [Reason,unknown_location]),
     print(1, "*** FAILED ~ts ***",
 	  [get_info_str(Mod,Func, CaseNum, get(test_server_cases))]),
     test_server_sup:framework_call(report, [tc_done,{Mod,{Func,GrName},
@@ -4038,14 +4038,21 @@ progress(failed, CaseNum, Mod, Func, GrName, unknown, Reason, Time,
 	  "<td><font color=\"red\">FAILED</font></td>"
 	  "<td>~ts</td></tr>\n",
 	  [TimeStr,Comment]),
-    print(minor, "=== location ~w", [unknown]),
+    print(minor, "=== Location: ~w", [unknown]),
     {FStr,FormattedReason} = format_exception(Reason),
-    print(minor, "=== reason = " ++ FStr, [FormattedReason]),
+    print(minor, "=== Reason: " ++ FStr, [FormattedReason]),
     failed;
 
 progress(failed, CaseNum, Mod, Func, GrName, Loc, Reason, Time,
 	 Comment0, {St0,St1}) ->
-    print(major, "=result        failed: ~p, ~p", [Reason,Loc]),
+    {LocMaj,LocMin} = if Func == error_in_suite ->
+			      case get_fw_mod(undefined) of
+				  Mod -> {unknown_location,unknown};
+				  _   -> {Loc,Loc}
+			      end;
+			 true -> {Loc,Loc}
+		       end,
+    print(major, "=result        failed: ~p, ~p", [Reason,LocMaj]),
     print(1, "*** FAILED ~ts ***",
 	  [get_info_str(Mod,Func, CaseNum, get(test_server_cases))]),
     test_server_sup:framework_call(report, [tc_done,{Mod,{Func,GrName},
@@ -4058,16 +4065,16 @@ progress(failed, CaseNum, Mod, Func, GrName, Loc, Reason, Time,
 	    "" -> "";
 	    _ -> xhtml("<br>","<br />") ++ to_string(Comment0)
 	end,
-    FormatLastLoc = test_server_sup:format_loc(get_last_loc(Loc)),
+    FormatLastLoc = test_server_sup:format_loc(get_last_loc(LocMaj)),
     print(html,
 	  "<td>" ++ St0 ++ "~ts" ++ St1 ++ "</td>"
 	  "<td><font color=\"red\">FAILED</font></td>"
 	  "<td><font color=\"red\">~ts</font>~ts</td></tr>\n",
 	  [TimeStr,FormatLastLoc,Comment]),
-    FormatLoc = test_server_sup:format_loc(Loc),
-    print(minor, "=== location ~ts", [FormatLoc]),
+    FormatLoc = test_server_sup:format_loc(LocMin),
+    print(minor, "=== Location: ~ts", [FormatLoc]),
     {FStr,FormattedReason} = format_exception(Reason),
-    print(minor, "=== reason = " ++ FStr, [FormattedReason]),
+    print(minor, "=== Reason: " ++ FStr, [FormattedReason]),
     failed;
 
 progress(ok, _CaseNum, Mod, Func, GrName, _Loc, RetVal, Time,
@@ -4096,7 +4103,7 @@ progress(ok, _CaseNum, Mod, Func, GrName, _Loc, RetVal, Time,
 	  "<td><font color=\"green\">Ok</font></td>"
 	  "~ts</tr>\n",
 	  [Time,Comment]),
-    print(minor, "=== returned value = ~p", [RetVal]),
+    print(minor, "=== Returned value: ~p", [RetVal]),
     ok.
 
 %%--------------------------------------------------------------------
@@ -4684,10 +4691,10 @@ collect_cases({make,InitMFA,CaseList,FinMFA}, St0, Mode) ->
 
 collect_cases({Module, Cases}, St, Mode) when is_list(Cases)  ->
     case (catch collect_case(Cases, St#cc{mod=Module}, [], Mode)) of
-	{ok, NewCases, NewSt} ->
- 	    {ok, NewCases, NewSt};
+	Result = {ok,_,_} ->
+ 	    Result;
  	Other ->
-	    {error, Other}
+	    {error,Other}
      end;
 
 collect_cases({_Mod,_Case}=Spec, St, Mode) ->
@@ -4705,9 +4712,9 @@ collect_case({Mod,{conf,_,_,_,_}=Conf}, St, Mode) ->
 
 collect_case(MFA, St, Mode) ->
     case in_skip_list(MFA, St#cc.skip) of
-	{true,Comment} ->
+	{true,Comment} when Comment /= make_failed ->
 	    {ok,[{skip_case,{MFA,Comment},Mode}],St};
-	false ->
+	_ ->
 	    case MFA of
 		{Mod,Case} -> collect_case_invoke(Mod, Case, MFA, St, Mode);
 		{_Mod,_Case,_Args} -> {ok,[MFA],St}
@@ -4769,17 +4776,25 @@ collect_case_subcases(Mod, Case, SubCases, St0, Mode) ->
 collect_files(Dir, Pattern, St, Mode) ->
     {ok,Cwd} = file:get_cwd(),
     Dir1 = filename:join(Cwd, Dir),
-    Wc = filename:join([Dir1,Pattern++code:objfile_extension()]),
+    Wc = filename:join([Dir1,Pattern++"{.erl,"++code:objfile_extension()++"}"]),
     case catch filelib:wildcard(Wc) of
 	{'EXIT', Reason} ->
 	    io:format("Could not collect files: ~p~n", [Reason]),
 	    {error,{collect_fail,Dir,Pattern}};
-	Mods0 ->
-	    Mods = [{path_to_module(Mod),all} || Mod <- lists:sort(Mods0)],
-	    collect_cases(Mods, St, Mode)
+	Files ->
+	    %% convert to module names and remove duplicates
+	    Mods = lists:foldl(fun(File, Acc) ->
+				       Mod = fullname_to_mod(File),
+				       case lists:member(Mod, Acc) of
+					   true  -> Acc;
+					   false -> [Mod | Acc]
+				       end
+			       end, [], Files),
+	    Tests = [{Mod,all} || Mod <- lists:sort(Mods)],
+	    collect_cases(Tests, St, Mode)
     end.
 
-path_to_module(Path) when is_list(Path) ->
+fullname_to_mod(Path) when is_list(Path) ->
     %% If this is called with a binary, then we are probably in +fnu
     %% mode and have found a beam file with name encoded as latin1. We
     %% will let this crash since it can not work to load such a module
diff --git a/lib/test_server/src/test_server_node.erl b/lib/test_server/src/test_server_node.erl
index acd47788db..9d87eca07e 100644
--- a/lib/test_server/src/test_server_node.erl
+++ b/lib/test_server/src/test_server_node.erl
@@ -618,9 +618,8 @@ do_quote_progname([Prog,Arg|Args]) ->
     end.
 
 random_element(L) ->
-    {A,B,C} = now(),
-    E = lists:sum([A,B,C]) rem length(L),
-    lists:nth(E+1, L).
+    random:seed(os:timestamp()),
+    lists:nth(random:uniform(length(L)), L).
 
 find_release(latest) ->
     "/usr/local/otp/releases/latest/bin/erl";
diff --git a/lib/test_server/src/test_server_sup.erl b/lib/test_server/src/test_server_sup.erl
index 15a6fdd1de..7d92bc902a 100644
--- a/lib/test_server/src/test_server_sup.erl
+++ b/lib/test_server/src/test_server_sup.erl
@@ -125,14 +125,8 @@ messages_get(Msgs) ->
     end.
 
 timecall(M, F, A) ->
-    Befor = erlang:now(),
-    Val = apply(M, F, A),
-    After = erlang:now(),
-    Elapsed =
-        (element(1,After)*1000000+element(2,After)+element(3,After)/1000000)-
-        (element(1,Befor)*1000000+element(2,Befor)+element(3,Befor)/1000000),
-    {Elapsed, Val}.
-
+    {Elapsed, Val} = timer:tc(M, F, A),
+    {Elapsed / 1000000, Val}.
 
 
 call_crash(Time,Crash,M,F,A) ->
@@ -887,9 +881,8 @@ unique_name() ->
 util_loop(State) ->		       
     receive
 	{From,unique_name} ->
-	    {_,S,Us} = now(),
-	    Ms = trunc(Us/1000),
-	    Name = lists:flatten(io_lib:format("~w.~w", [S,Ms])),
+	    Nr = erlang:unique_integer([positive]),
+	    Name = integer_to_list(Nr),
 	    if Name == State#util_state.latest_name ->
 		    timer:sleep(1),
 		    self() ! {From,unique_name},
diff --git a/lib/test_server/src/ts.erl b/lib/test_server/src/ts.erl
index d6d2e865e2..85f97656ff 100644
--- a/lib/test_server/src/ts.erl
+++ b/lib/test_server/src/ts.erl
@@ -24,15 +24,20 @@
 
 -module(ts).
 
--export([run/0, run/1, run/2, run/3, run/4, run/5,
-	 tests/0, tests/1,
+-export([cl_run/1,
+	 run/0, run/1, run/2, run/3, run/4, run/5,
+	 run_category/1, run_category/2, run_category/3,
+	 tests/0, tests/1, suites/1, categories/1,
 	 install/0, install/1,
-	 bench/0, bench/1, bench/2, benchmarks/0,
-	 smoke_test/0, smoke_test/1,smoke_test/2, smoke_tests/0,
 	 estone/0, estone/1,
 	 cross_cover_analyse/1,
 	 compile_testcases/0, compile_testcases/1,
 	 help/0]).
+
+%% Functions kept for backwards compatibility
+-export([bench/0, bench/1, bench/2, benchmarks/0,
+	 smoke_test/0, smoke_test/1,smoke_test/2, smoke_tests/0]).
+
 -export([i/0, l/1, r/0, r/1, r/2, r/3]).
 
 %%%----------------------------------------------------------------------
@@ -82,10 +87,13 @@
 -define(
    install_help,
    [
-    "  ts:install()           - Install TS with no Options.\n"
-    "  ts:install([Options])  - Install TS with Options\n"
+    "  ts:install()\n",
+    "    Install ts with no options.\n",
+    "\n",
+    "  ts:install(Options)\n",
+    "    Install ts with a list of options, see below.\n",
     "\n",
-    "Installation options supported:\n",
+    "Installation options supported:\n\n",
     "  {longnames, true} - Use fully qualified hostnames\n",
     "  {verbose, Level}  - Sets verbosity level for TS output (0,1,2), 0 is\n"
     "                      quiet(default).\n"
@@ -110,21 +118,64 @@ help() ->
     end.
 
 help(uninstalled) ->
-    H = ["TS is not installed yet.  To install use:\n\n"],
+    H = ["ts is not yet installed. To install use:\n\n"],
     show_help([H,?install_help]);
 help(installed) ->
-    H = ["Run functions:\n",
-	 "  ts:run()          - Run all available tests.\n",
-	 "  ts:run(Spec)      - Run all tests in given test spec file.\n",
-	 "                      The spec file is actually ../*_test/Spec.spec\n",
-	 "  ts:run([Specs])   - Run all tests in all given test spec files.\n",
-	 "  ts:run(Spec, Mod) - Run a single test suite.\n",
-	 "  ts:run(Spec, Mod, Case)\n",
-	 "                    - Run a single test case.\n",
-	 "  All above run functions can have an additional Options argument\n",
-	 "  which is a list of options.\n",
+    H = ["\n",
+	 "Run functions:\n\n",
+	 "  ts:run()\n",
+	 "    Run the tests for all apps. The tests are defined by the\n",
+	 "    main test specification for each app: ../App_test/App.spec.\n",
+	 "\n",
+	 "  ts:run(Apps)\n",
+	 "    Apps = atom() | [atom()]\n",
+	 "    Run the tests for an app, or set of apps. The tests are\n",
+	 "    defined by the main test specification for each app:\n",
+	 "    ../App_test/App.spec.\n",
+	 "\n",
+	 "  ts:run(App, Suites)\n",
+	 "    App = atom(), Suites = atom() | [atom()]\n",
+	 "    Run one or more test suites for App (i.e. modules named\n",
+	 "    *_SUITE.erl, located in ../App_test/).\n",
+	 "\n",
+	 "  ts:run(App, Suite, TestCases)\n",
+	 "    App = atom(), Suite = atom(),\n",
+	 "    TestCases = TCs | {testcase,TCs}, TCs = atom() | [atom()]\n",
+	 "    Run one or more test cases (functions) in Suite.\n",
+	 "\n",
+	 "  ts:run(App, Suite, {group,Groups})\n",
+	 "    App = atom(), Suite = atom(), Groups = atom() | [atom()]\n",
+	 "    Run one or more test case groups in Suite.\n",
+	 "\n",
+	 "  ts:run(App, Suite, {group,Group}, {testcase,TestCases})\n",
+	 "    App = atom(), Suite = atom(), Group = atom(),\n",
+	 "    TestCases = atom() | [atom()]\n",
+ 	 "    Run one or more test cases in a test case group in Suite.\n",
+	 "\n",
+	 "  ts:run_category(TestCategory)\n",
+	 "    TestCategory = smoke | essential | bench | atom()\n",
+	 "    Run the specified category of tests for all apps.\n",
+	 "    For each app, the tests are defined by the specification:\n",
+	 "    ../App_test/App_TestCategory.spec.\n",
+	 "\n",
+	 "  ts:run_category(Apps, TestCategory)\n",
+	 "    Apps = atom() | [atom()],\n",
+	 "    TestCategory = smoke | essential | bench | atom()\n",
+	 "    Run the specified category of tests for the given app or apps.\n",
+	 "\n",
+	 "    Note that the test category parameter may have arbitrary value,\n",
+	 "    but should correspond to an existing test specification with file\n",
+	 "    name: ../App_test/App_TestCategory.spec.\n",
+	 "    Predefined categories exist for smoke tests, essential tests and\n",
+	 "    benchmark tests. The corresponding specs are:\n",
+	 "    ../*_test/Spec_smoke.spec, ../*_test/Spec_essential.spec and\n",
+	 "    ../*_test/Spec_bench.spec.\n",
 	 "\n",
-	 "Run options supported:\n",
+	 "  All above run functions can take an additional last argument,\n",
+	 "  Options, which is a list of options (e.g. ts:run(App, Options),\n",
+	 "  or ts:run_category(Apps, TestCategory, Options)).\n",
+	 "\n",
+	 "Run options supported:\n\n",
 	 "  batch             - Do not start a new xterm\n",
 	 "  {verbose, Level}  - Same as the verbosity option for install\n",
 	 "  verbose           - Same as {verbose, 1}\n",
@@ -143,47 +194,46 @@ help(installed) ->
 	 "                      files are. The default location is\n"
 	 "                      tests/test_server/.\n"
 	 "\n",
-	 "Supported trace information elements\n",
+	 "Supported trace information elements:\n\n",
 	 "  {tp | tpl, Mod, [] | match_spec()}\n",
 	 "  {tp | tpl, Mod, Func, [] | match_spec()}\n",
 	 "  {tp | tpl, Mod, Func, Arity, [] | match_spec()}\n",
 	 "  {ctp | ctpl, Mod}\n",
 	 "  {ctp | ctpl, Mod, Func}\n",
 	 "  {ctp | ctpl, Mod, Func, Arity}\n",
+	 "\n\n",
+	 "Support functions:\n\n",
+	 "  ts:tests()\n",
+	 "    Returns all apps available for testing.\n",
+	 "\n",
+	 "  ts:tests(TestCategory)\n",
+	 "    Returns all apps that provide tests in the given category.\n",
+	 "\n",
+	 "  ts:suites(App)\n",
+	 "    Returns all available test suites for App,\n",
+	 "    i.e. ../App_test/*_SUITE.erl\n",
+	 "\n",
+	 "  ts:categories(App)\n",
+	 "    Returns all test categories available for App.\n",
+	 "\n",
+	 "  ts:estone()\n",
+	 "    Runs estone_SUITE in the kernel application with no run options\n",
 	 "\n",
-	 "Support functions:\n",
-	 "  ts:tests()        - Shows all available families of tests.\n",
-	 "  ts:tests(Spec)    - Shows all available test modules in Spec,\n",
-	 "                      i.e. ../Spec_test/*_SUITE.erl\n",
-	 "  ts:estone()       - Run estone_SUITE in kernel application with\n"
-	 "                      no run options\n",
-	 "  ts:estone(Opts)   - Run estone_SUITE in kernel application with\n"
-	 "                      the given run options\n",
-	 "  ts:cross_cover_analyse(Level)\n"
-	 "                    - Used after ts:run with option cover or \n"
-	 "                      cover_details. Analyses modules specified with\n"
-	 "                      a 'cross' statement in the cover spec file.\n"
-	 "                      Level can be 'overview' or 'details'.\n",
-	 "  ts:compile_testcases()~n"
-	 "  ts:compile_testcases(Apps)~n"
-	 "                    - Compile all testcases for usage in a cross ~n"
-	 "                      compile environment."
-	 " \n"
-	 "Benchmark functions:\n"
-	 "  ts:benchmarks()   - Get all available families of benchmarks\n"
-	 "  ts:bench()        - Runs all benchmarks\n"
-	 "  ts:bench(Spec)    - Runs all benchmarks in the given spec file.\n"
-	 "                      The spec file is actually ../*_test/Spec_bench.spec\n\n"
-	 "                      ts:bench can take the same Options argument as ts:run.\n"
-	 "Smoke test functions:\n"
-	 "  ts:smoke_tests()  - Get all available families of smoke tests\n"
-	 "  ts:smoke_test()   - Runs all smoke tests\n"
-	 "  ts:smoke_test(Spec)\n"
-	 "                    - Runs all smoke tests in the given spec file.\n"
-	 "                      The spec file is actually ../*_test/Spec_smoke.spec\n\n"
-	 "                      ts:smoke_test can take the same Options argument as ts:run.\n"
-	 "\n"
-	 "Installation (already done):\n"
+	 "  ts:estone(Opts)\n",
+	 "    Runs estone_SUITE in the kernel application with the given\n",
+	 "    run options\n",
+	 "\n",
+	 "  ts:cross_cover_analyse(Level)\n",
+	 "    Use after ts:run with option cover or cover_details. Analyses\n",
+	 "    modules specified with a 'cross' statement in the cover spec file.\n",
+	 "    Level can be 'overview' or 'details'.\n",
+	 "\n",
+	 "  ts:compile_testcases()\n",
+	 "  ts:compile_testcases(Apps)\n",
+	 "    Compiles all test cases for the given apps, for usage in a\n",
+	 "    cross compilation environment.\n",
+	 "\n\n",
+	 "Installation (already done):\n\n"
 	],
     show_help([H,?install_help]).
 
@@ -212,86 +262,138 @@ run_all(_Vars) ->
 
 run_some([], _Opts) ->
     ok;
-run_some([{Spec,Mod}|Specs], Opts) ->
-    case run(Spec, Mod, Opts) of
+run_some(Apps, Opts) ->
+    case proplists:get_value(test_category, Opts) of
+	bench ->
+	    check_and_run(fun(Vars) -> ts_benchmark:run(Apps, Opts, Vars) end);
+	_Other ->
+	    run_some1(Apps, Opts)
+    end.
+
+run_some1([], _Opts) ->
+    ok;
+run_some1([{App,Mod}|Apps], Opts) ->
+    case run(App, Mod, Opts) of
 	ok -> ok;
-	Error -> io:format("~p: ~p~n",[{Spec,Mod},Error])
+	Error -> io:format("~p: ~p~n",[{App,Mod},Error])
     end,
-    run_some(Specs, Opts);
-run_some([Spec|Specs], Opts) ->
-    case run(Spec, Opts) of
+    run_some1(Apps, Opts);
+run_some1([App|Apps], Opts) ->
+    case run(App, Opts) of
 	ok -> ok;
-	Error -> io:format("~p: ~p~n",[Spec,Error])
+	Error -> io:format("~p: ~p~n",[App,Error])
     end,
-    run_some(Specs, Opts).
+    run_some1(Apps, Opts).
+
+%% This can be used from command line. Both App and
+%% TestCategory must be specified. App may be 'all'
+%% and TestCategory may be 'main'. Examples:
+%% erl -s ts cl_run kernel smoke <options>
+%% erl -s ts cl_run kernel main <options>
+%% erl -s ts cl_run all essential <options>
+%% erl -s ts cl_run all main <options>
+%% When using the 'main' category and running with cover,
+%% one can also use the cross_cover_analysis flag.
+cl_run([App,Cat|Options0]) when is_atom(App) ->
 
-%% Runs one test spec (interactive).
-run(Testspec) when is_atom(Testspec) ->
-    Options=check_test_get_opts(Testspec, []),
-    File = atom_to_list(Testspec),
-    run_test(File, [{spec,[File++".spec"]}], Options);
-
-%% This can be used from command line, e.g.
-%% erl -s ts run all_tests <config>
-%% When using the all_tests flag and running with cover, one can also
-%% use the cross_cover_analysis flag.
-run([all_tests|Config0]) ->
     AllAtomsFun = fun(X) when is_atom(X) -> true; 
 		     (_) -> false 
 		  end,
-    Config1 = 
-	case lists:all(AllAtomsFun,Config0) of
+    Options1 = 
+	case lists:all(AllAtomsFun, Options0) of
 	    true ->
 		%% Could be from command line
-		lists:map(fun(Conf)->to_erlang_term(Conf) end,Config0)--[batch];
+		lists:map(fun(Opt) ->
+				  to_erlang_term(Opt)
+			  end, Options0) -- [batch];
 	    false ->
-		Config0--[batch]
+		Options0 -- [batch]
 	end,
     %% Make sure there is exactly one occurence of 'batch'
-    Config2 = [batch|Config1],
-
-    R = run(tests(),Config2),
-
-    case check_for_cross_cover_analysis_flag(Config2) of
+    Options2 = [batch|Options1],
+
+    Result =
+	case {App,Cat} of
+	    {all,main} ->
+		run(tests(), Options2);
+	    {all,Cat} ->
+		run_category(Cat, Options2);
+	    {_,main} ->
+		run(App, Options2);
+	    {_,Cat} ->
+		run_category(App, Cat, Options2)
+	end,
+    case check_for_cross_cover_analysis_flag(Options2) of
 	false ->
 	    ok;
 	Level ->
 	    cross_cover_analyse(Level)
     end,
+    Result.
 
-    R;
+%% run/1
+%% Runs tests for one app (interactive).
+run(App) when is_atom(App) ->
+    Options = check_test_get_opts(App, []),
+    File = atom_to_list(App),
+    run_test(File, [{spec,[File++".spec"]},{allow_user_terms,true}], Options);
 
-%% ts:run(ListOfTests)
-run(List) when is_list(List) ->
-    run(List, [batch]).
-
-run(List, Opts) when is_list(List), is_list(Opts) ->
-    run_some(List, Opts);
+%% This can be used from command line, e.g.
+%% erl -s ts run all <options>
+%% erl -s ts run main <options>
+run([all,main|Opts]) ->
+    cl_run([all,main|Opts]);
+run([all|Opts]) ->
+    cl_run([all,main|Opts]);
+run([main|Opts]) ->
+    cl_run([all,main|Opts]);
+%% Backwards compatible
+run([all_tests|Opts]) ->
+    cl_run([all,main|Opts]);
+
+%% run/1
+%% Runs the main tests for all available apps
+run(Apps) when is_list(Apps) ->
+    run(Apps, [batch]).
 
 %% run/2
-%% Runs one test spec with list of suites or with options
-run(Testspec, ModsOrConfig) when is_atom(Testspec),
-				 is_list(ModsOrConfig) ->
-    case is_list_of_suites(ModsOrConfig) of
+%% Runs the main tests for all available apps
+run(Apps, Opts) when is_list(Apps), is_list(Opts) ->
+    run_some(Apps, Opts);
+
+%% Runs tests for one app with list of suites or with options
+run(App, ModsOrOpts) when is_atom(App),
+			  is_list(ModsOrOpts) ->
+    case is_list_of_suites(ModsOrOpts) of
 	false ->
-	    run(Testspec, {config_list,ModsOrConfig});
+	    run(App, {opts_list,ModsOrOpts});
 	true ->
-	    run_some([{Testspec,M} || M <- ModsOrConfig],
+	    run_some([{App,M} || M <- ModsOrOpts],
 		     [batch])
     end;
-run(Testspec, {config_list,Config}) ->
-    Options=check_test_get_opts(Testspec, Config),
-    IsSmoke=proplists:get_value(smoke,Config),
-    File=atom_to_list(Testspec),
+
+run(App, {opts_list,Opts}) ->
+    Options = check_test_get_opts(App, Opts),
+    File = atom_to_list(App),
+
+    %% check if other test category than main has been specified
+    {CatSpecName,TestCat} =
+	case proplists:get_value(test_category, Opts) of
+	    undefined ->
+		{"",main};
+	    Cat ->
+		{"_" ++ atom_to_list(Cat),Cat}
+	end,
+
     WhatToDo =
-	case Testspec of
+	case App of
 	    %% Known to exist but fails generic tests below
 	    emulator -> test;
 	    system -> test;
 	    erl_interface -> test;
 	    epmd -> test;
 	    _ ->
-		case code:lib_dir(Testspec) of
+		case code:lib_dir(App) of
 		    {error,bad_name} ->
 			%% Application does not exist
 			skip;
@@ -313,92 +415,167 @@ run(Testspec, {config_list,Config}) ->
 			end
 		end
 	end,
-    Spec =
-	case WhatToDo of
-	    skip ->
-		create_skip_spec(Testspec, tests(Testspec));
-	    test when IsSmoke ->
-		File++"_smoke.spec";
-	    test ->
-		File++".spec"
-	end,
-    run_test(File, [{spec,[Spec]}], Options);
-%% Runs one module in a spec (interactive)
-run(Testspec, Mod) when is_atom(Testspec), is_atom(Mod) ->
-    run_test({atom_to_list(Testspec),Mod}, 
+    case WhatToDo of
+	skip ->
+	    SkipSpec = create_skip_spec(App, suites(App)),
+	    run_test(File, [{spec,[SkipSpec]}], Options);
+	test when TestCat == bench ->
+	    check_and_run(fun(Vars) ->
+				  ts_benchmark:run([App], Options, Vars)
+			  end);
+	test ->
+	    Spec = File ++ CatSpecName ++ ".spec",
+	    run_test(File, [{spec,[Spec]},{allow_user_terms,true}], Options)
+	end;
+
+%% Runs one module for an app (interactive)
+run(App, Mod) when is_atom(App), is_atom(Mod) ->
+    run_test({atom_to_list(App),Mod}, 
 	     [{suite,Mod}], 
 	     [interactive]).
 
 %% run/3
-%% Run one module in a spec with Config
-run(Testspec, Mod, Config) when is_atom(Testspec),
-				is_atom(Mod),
-				is_list(Config) ->
-    Options=check_test_get_opts(Testspec, Config),
-    run_test({atom_to_list(Testspec),Mod},
+%% Run one module for an app with Opts
+run(App, Mod, Opts) when is_atom(App),
+			 is_atom(Mod),
+			 is_list(Opts) ->
+    Options = check_test_get_opts(App, Opts),
+    run_test({atom_to_list(App),Mod},
 	     [{suite,Mod}], Options);
-%% Run multiple modules with Config
-run(Testspec, Mods, Config) when is_atom(Testspec),
-				 is_list(Mods),
-				 is_list(Config) ->
-    run_some([{Testspec,M} || M <- Mods], Config);
+
+%% Run multiple modules with Opts
+run(App, Mods, Opts) when is_atom(App),
+			  is_list(Mods),
+			  is_list(Opts) ->
+    run_some([{App,M} || M <- Mods], Opts);
+
 %% Runs one test case in a module.
-run(Testspec, Mod, Case) when is_atom(Testspec),
-			      is_atom(Mod),
-			      is_atom(Case) ->
-    Options=check_test_get_opts(Testspec, []),
+run(App, Mod, Case) when is_atom(App),
+			 is_atom(Mod),
+			 is_atom(Case) ->
+    Options = check_test_get_opts(App, []),
     Args = [{suite,Mod},{testcase,Case}],
-    run_test(atom_to_list(Testspec), Args, Options);
+    run_test(atom_to_list(App), Args, Options);
+
 %% Runs one or more groups in a module.
-run(Testspec, Mod, Grs={group,_Groups}) when is_atom(Testspec),
-					    is_atom(Mod) ->
-    Options=check_test_get_opts(Testspec, []),
+run(App, Mod, Grs={group,_Groups}) when is_atom(App),
+					is_atom(Mod) ->
+    Options = check_test_get_opts(App, []),
     Args = [{suite,Mod},Grs],
-    run_test(atom_to_list(Testspec), Args, Options);
+    run_test(atom_to_list(App), Args, Options);
+
 %% Runs one or more test cases in a module.
-run(Testspec, Mod, TCs={testcase,_Cases}) when is_atom(Testspec),
-					       is_atom(Mod) ->
-    Options=check_test_get_opts(Testspec, []),
+run(App, Mod, TCs={testcase,_Cases}) when is_atom(App),
+					  is_atom(Mod) ->
+    Options = check_test_get_opts(App, []),
     Args = [{suite,Mod},TCs],
-    run_test(atom_to_list(Testspec), Args, Options).
+    run_test(atom_to_list(App), Args, Options).
 
 %% run/4
 %% Run one test case in a module with Options.
-run(Testspec, Mod, Case, Config) when is_atom(Testspec), 
-				      is_atom(Mod), 
-				      is_atom(Case), 
-				      is_list(Config) ->
-    Options=check_test_get_opts(Testspec, Config),
+run(App, Mod, Case, Opts) when is_atom(App), 
+			       is_atom(Mod), 
+			       is_atom(Case), 
+			       is_list(Opts) ->
+    Options = check_test_get_opts(App, Opts),
     Args = [{suite,Mod},{testcase,Case}],
-    run_test(atom_to_list(Testspec), Args, Options);
+    run_test(atom_to_list(App), Args, Options);
+
 %% Run one or more test cases in a module with Options.
-run(Testspec, Mod, {testcase,Cases}, Config) when is_atom(Testspec), 
-						  is_atom(Mod) ->
-    run(Testspec, Mod, Cases, Config);
-run(Testspec, Mod, Cases, Config) when is_atom(Testspec), 
-				       is_atom(Mod),
-				       is_list(Cases),
-				       is_list(Config) ->
-    Options=check_test_get_opts(Testspec, Config),
+run(App, Mod, {testcase,Cases}, Opts) when is_atom(App), 
+					   is_atom(Mod) ->
+    run(App, Mod, Cases, Opts);
+run(App, Mod, Cases, Opts) when is_atom(App), 
+				is_atom(Mod),
+				is_list(Cases),
+				is_list(Opts) ->
+    Options = check_test_get_opts(App, Opts),
     Args = [{suite,Mod},Cases],
-    run_test(atom_to_list(Testspec), Args, Options);
+    run_test(atom_to_list(App), Args, Options);
+
+%% Run one or more test cases in a group.
+run(App, Mod, Gr={group,_Group}, {testcase,Cases}) when is_atom(App),
+							is_atom(Mod) ->
+    run(App, Mod, Gr, Cases, [batch]);
+
+
 %% Run one or more groups in a module with Options.
-run(Testspec, Mod, Grs={group,_Groups}, Config) when is_atom(Testspec), 
-						     is_atom(Mod) ->
-    Options=check_test_get_opts(Testspec, Config),
+run(App, Mod, Grs={group,_Groups}, Opts) when is_atom(App), 
+					      is_atom(Mod),
+					      is_list(Opts) ->
+    Options = check_test_get_opts(App, Opts),
     Args = [{suite,Mod},Grs],
-    run_test(atom_to_list(Testspec), Args, Options).
+    run_test(atom_to_list(App), Args, Options).
 
 %% run/5
 %% Run one or more test cases in a group with Options.
-run(Testspec, Mod, Group, Cases, Config) when is_atom(Testspec), 
-					      is_atom(Mod),
-					      is_list(Config) ->
+run(App, Mod, Group, Cases, Opts) when is_atom(App), 
+				       is_atom(Mod),
+				       is_list(Opts) ->
     Group1 = if is_tuple(Group) -> Group; true -> {group,Group} end,
     Cases1 = if is_tuple(Cases) -> Cases; true -> {testcase,Cases} end,
-    Options=check_test_get_opts(Testspec, Config),
+    Options = check_test_get_opts(App, Opts),
     Args = [{suite,Mod},Group1,Cases1],
-    run_test(atom_to_list(Testspec), Args, Options).
+    run_test(atom_to_list(App), Args, Options).
+
+%% run_category/1
+run_category(TestCategory) when is_atom(TestCategory) ->
+    run_category(TestCategory, [batch]).
+
+%% run_category/2
+run_category(TestCategory, Opts) when is_atom(TestCategory),
+				      is_list(Opts) ->
+    case ts:tests(TestCategory) of
+	[] ->
+	    {error, no_tests_available};
+	Apps ->
+	    Opts1 = [{test_category,TestCategory} | Opts],
+	    run_some(Apps, Opts1)
+    end;
+
+run_category(Apps, TestCategory) when is_atom(TestCategory) ->
+    run_category(Apps, TestCategory, [batch]).
+
+%% run_category/3
+run_category(App, TestCategory, Opts) ->
+    Apps = if is_atom(App) -> [App];
+	      is_list(App) -> App
+	   end,
+    Opts1 = [{test_category,TestCategory} | Opts],
+    run_some(Apps, Opts1).
+
+%%-----------------------------------------------------------------
+%% Functions kept for backwards compatibility
+
+bench() ->
+    run_category(bench, []).
+bench(Opts) when is_list(Opts) ->
+    run_category(bench, Opts);
+bench(App) ->
+    run_category(App, bench, []).
+bench(App, Opts) when is_atom(App) ->
+    run_category(App, bench, Opts);
+bench(Apps, Opts) when is_list(Apps) ->
+    run_category(Apps, bench, Opts).
+
+benchmarks() ->
+    tests(bench).
+
+smoke_test() ->
+    run_category(smoke, []).
+smoke_test(Opts) when is_list(Opts) ->
+    run_category(smoke, Opts);
+smoke_test(App) ->
+    run_category(App, smoke, []).
+smoke_test(App, Opts) when is_atom(App) ->
+    run_category(App, smoke, Opts);
+smoke_test(Apps, Opts) when is_list(Apps) ->
+    run_category(Apps, smoke, Opts).
+
+smoke_tests() ->
+    tests(smoke).
+
+%%-----------------------------------------------------------------
 
 is_list_of_suites(List) ->
     lists:all(fun(Suite) ->
@@ -416,29 +593,29 @@ is_list_of_suites(List) ->
 
 %% Create a spec to skip all SUITES, this is used when the application
 %% to be tested is not part of the OTP release to be tested.
-create_skip_spec(Testspec, SuitesToSkip) ->
+create_skip_spec(App, SuitesToSkip) ->
     {ok,Cwd} = file:get_cwd(),
-    TestspecString = atom_to_list(Testspec),
-    Specname = TestspecString++"_skip.spec",
+    AppString = atom_to_list(App),
+    Specname = AppString++"_skip.spec",
     {ok,D} = file:open(filename:join([filename:dirname(Cwd),
-				      TestspecString++"_test",Specname]),
+				      AppString++"_test",Specname]),
 		       [write]),
-    TestDir = "\"../"++TestspecString++"_test\"",
+    TestDir = "\"../"++AppString++"_test\"",
     io:format(D,"{suites, "++TestDir++", all}.~n",[]),
     io:format(D,"{skip_suites, "++TestDir++", ~w, \"Skipped as application"
 	      " is not in path!\"}.",[SuitesToSkip]),
     Specname.
 
-%% Check testspec to be valid and get possible Options
-%% from the config.
-check_test_get_opts(Testspec, Config) ->
-    validate_test(Testspec),
-    Mode = configmember(batch, {batch, interactive}, Config),
-    Vars = configvars(Config),
-    Trace = get_config(trace,Config),
-    ConfigPath = get_config(config,Config),
-    KeepTopcase = configmember(keep_topcase, {keep_topcase,[]}, Config),
-    Cover = configcover(Testspec,Config),
+%% Check testspec for App to be valid and get possible options
+%% from the list.
+check_test_get_opts(App, Opts) ->
+    validate_test(App),
+    Mode = configmember(batch, {batch, interactive}, Opts),
+    Vars = configvars(Opts),
+    Trace = get_config(trace,Opts),
+    ConfigPath = get_config(config,Opts),
+    KeepTopcase = configmember(keep_topcase, {keep_topcase,[]}, Opts),
+    Cover = configcover(App,Opts),
     lists:flatten([Vars,Mode,Trace,KeepTopcase,Cover,ConfigPath]).
     
 to_erlang_term(Atom) ->
@@ -447,7 +624,7 @@ to_erlang_term(Atom) ->
     {ok, Term} = erl_parse:parse_term(Tokens),
     Term.
 
-%% Validate that a Testspec really is a testspec,
+%% Validate that Testspec really is a testspec,
 %% and exit if not.
 validate_test(Testspec) ->
     case lists:member(Testspec, tests()) of
@@ -460,10 +637,10 @@ validate_test(Testspec) ->
 	    exit(self(), {error, test_not_available})
     end.
     
-configvars(Config) ->
-    case lists:keysearch(vars, 1, Config) of
+configvars(Opts) ->
+    case lists:keysearch(vars, 1, Opts) of
 	{value, {vars, List}} ->
-	    List0 = special_vars(Config),
+	    List0 = special_vars(Opts),
 	    Key = fun(T) -> element(1,T) end,
 	    DelDupList = 
 		lists:filter(fun(V) -> 
@@ -474,17 +651,17 @@ configvars(Config) ->
 			     end, List),
 	    {vars, [List0|DelDupList]};
 	_ ->
-	    {vars, special_vars(Config)}
+	    {vars, special_vars(Opts)}
     end.
 
-%% Allow some shortcuts in the Options...
-special_vars(Config) ->
+%% Allow some shortcuts in the options...
+special_vars(Opts) ->
     SpecVars =
-	case lists:member(verbose, Config) of
+	case lists:member(verbose, Opts) of
 	    true ->
 		[{verbose, 1}];
 	    false ->
-		case lists:keysearch(verbose, 1, Config) of
+		case lists:keysearch(verbose, 1, Opts) of
 		    {value, {verbose, Lvl}} ->
 			[{verbose, Lvl}];
 		    _ ->
@@ -492,13 +669,13 @@ special_vars(Config) ->
 		end
 	end,
     SpecVars1 =
-	case lists:keysearch(diskless, 1, Config) of
+	case lists:keysearch(diskless, 1, Opts) of
 	    {value,{diskless, true}} ->
 		[{diskless, true} | SpecVars];
 	    _ ->
 		SpecVars
 	end,
-    case lists:keysearch(testcase_callback, 1, Config) of
+    case lists:keysearch(testcase_callback, 1, Opts) of
 	{value,{testcase_callback, CBM, CBF}} ->
 	    [{ts_testcase_callback, {CBM,CBF}} | SpecVars1];
 	{value,{testcase_callback, CB}} ->
@@ -566,50 +743,31 @@ check_for_cross_cover_analysis_flag([_|Config],Level,CrossFlag) ->
 check_for_cross_cover_analysis_flag([],_,_) ->
     false.
 
-%% Returns a list of available test suites.
 
+%% Returns all available apps.
 tests() ->
     {ok, Cwd} = file:get_cwd(),
     ts_lib:specs(Cwd).
 
-tests(Spec) ->
+%% Returns all apps that provide tests in the given test category
+tests(main) ->
     {ok, Cwd} = file:get_cwd(),
-    ts_lib:suites(Cwd, atom_to_list(Spec)).
-
-%% Benchmark related functions
-
-bench() ->
-    bench([]).
-
-bench(Opts) when is_list(Opts) ->
-    bench(benchmarks(),Opts);
-bench(Spec) ->
-    bench([Spec],[]).
-
-bench(Spec, Opts) when is_atom(Spec) ->
-    bench([Spec],Opts);
-bench(Specs, Opts) ->
-    check_and_run(fun(Vars) -> ts_benchmark:run(Specs, Opts, Vars) end).
-
-benchmarks() ->
-    ts_benchmark:benchmarks().
-
-smoke_test() ->
-    smoke_test([]).
-
-smoke_test(Opts) when is_list(Opts) ->
-    smoke_test(smoke_tests(),Opts);
-smoke_test(Spec) ->
-    smoke_test([Spec],[]).
-
-smoke_test(Spec, Opts) when is_atom(Spec) ->
-    smoke_test([Spec],Opts);
-smoke_test(Specs, Opts) ->
-    run(Specs, [{smoke,true}|Opts]).
+    ts_lib:specs(Cwd);
+tests(bench) ->
+    ts_benchmark:benchmarks();
+tests(TestCategory) ->
+    {ok, Cwd} = file:get_cwd(),
+    ts_lib:specialized_specs(Cwd, atom_to_list(TestCategory)).
+    
+%% Returns a list of available test suites for App.
+suites(App) ->
+    {ok, Cwd} = file:get_cwd(),
+    ts_lib:suites(Cwd, atom_to_list(App)).
 
-smoke_tests() ->
+%% Returns all available test categories for App
+categories(App) ->
     {ok, Cwd} = file:get_cwd(),
-    ts_lib:specialized_specs(Cwd,"smoke").
+    ts_lib:test_categories(Cwd, atom_to_list(App)).
 
 %% 
 %% estone/0, estone/1
diff --git a/lib/test_server/src/ts_install_cth.erl b/lib/test_server/src/ts_install_cth.erl
index 7746bbed6f..54ca69637e 100644
--- a/lib/test_server/src/ts_install_cth.erl
+++ b/lib/test_server/src/ts_install_cth.erl
@@ -238,12 +238,15 @@ generate_nodenames2(0, _Hosts, Acc) ->
     Acc;
 generate_nodenames2(N, Hosts, Acc) ->
     Host=lists:nth((N rem (length(Hosts)))+1, Hosts),
-    Name=list_to_atom(temp_nodename("nod", []) ++ "@" ++ Host),
+    Name=list_to_atom(temp_nodename("nod",N) ++ "@" ++ Host),
     generate_nodenames2(N-1, Hosts, [Name|Acc]).
 
-temp_nodename([], Acc) ->
-    lists:flatten(Acc);
-temp_nodename([Chr|Base], Acc) ->
-    {A,B,C} = erlang:now(),
-    New = [Chr | integer_to_list(Chr bxor A bxor B+A bxor C+B)],
-    temp_nodename(Base, [New|Acc]).
+%% We cannot use erlang:unique_integer([positive])
+%% here since this code in run on older test releases as well.
+temp_nodename(Base,I) ->
+    {A,B,C} = os:timestamp(),
+    Nstr = integer_to_list(I),
+    Astr = integer_to_list(A),
+    Bstr = integer_to_list(B),
+    Cstr = integer_to_list(C),
+    Base++Nstr++Astr++Bstr++Cstr.
diff --git a/lib/test_server/src/ts_lib.erl b/lib/test_server/src/ts_lib.erl
index 5368960446..d27bc55b3a 100644
--- a/lib/test_server/src/ts_lib.erl
+++ b/lib/test_server/src/ts_lib.erl
@@ -27,7 +27,7 @@
 	 erlang_type/1,
 	 initial_capital/1,
 	 specs/1, suites/2,
-	 specialized_specs/2,
+	 test_categories/2, specialized_specs/2,
 	 subst_file/3, subst/2, print_data/1,
 	 make_non_erlang/2,
 	 maybe_atom_to_list/1, progress/4,
@@ -96,26 +96,47 @@ specialized_specs(Dir,PostFix) ->
     Specs = filelib:wildcard(filename:join([filename:dirname(Dir),
 					    "*_test", "*_"++PostFix++".spec"])),
     sort_tests([begin
-		    Base = filename:basename(Name),
-		    list_to_atom(string:substr(Base,1,string:rstr(Base,"_")-1))
+		    DirPart = filename:dirname(Name),
+		    AppTest = hd(lists:reverse(filename:split(DirPart))),
+		    list_to_atom(string:substr(AppTest, 1, length(AppTest)-5))
 		end || Name <- Specs]).
 
 specs(Dir) ->
     Specs = filelib:wildcard(filename:join([filename:dirname(Dir),
 					    "*_test", "*.{dyn,}spec"])),
-    % Filter away all spec which end with {_bench,_smoke}.spec
-    NoBench = fun(SpecName) ->
-		      case lists:reverse(SpecName) of
-			  "ceps.hcneb_"++_ -> false;
-			  "ceps.ekoms_"++_ -> false;
-			  _ -> true
-		      end
-	      end,
-
-    sort_tests([filename_to_atom(Name) || Name <- Specs, NoBench(Name)]).
-
-suites(Dir, Spec) ->
-    Glob=filename:join([filename:dirname(Dir), Spec++"_test",
+    %% Make sure only to include the main spec for each application
+    MainSpecs =
+	lists:flatmap(fun(FullName) ->
+			      [Spec,TestDir|_] =
+				  lists:reverse(filename:split(FullName)),
+			      [_TestSuffix|TDParts] = 
+				  lists:reverse(string:tokens(TestDir,[$_,$.])),
+			      [_SpecSuffix|SParts] = 
+				  lists:reverse(string:tokens(Spec,[$_,$.])),
+			      if TDParts == SParts ->
+				      [filename_to_atom(FullName)];	  
+				 true ->
+				      []
+			      end
+		      end, Specs),
+    sort_tests(MainSpecs).
+
+test_categories(Dir, App) ->
+    Specs = filelib:wildcard(filename:join([filename:dirname(Dir),
+					    App++"_test", "*.spec"])),
+    lists:flatmap(fun(FullName) ->
+			  [Spec,_TestDir|_] =
+			      lists:reverse(filename:split(FullName)),	 
+			  case filename:rootname(Spec -- App) of
+			      "" ->
+				  [];
+			      [_Sep | Cat] ->
+				  [list_to_atom(Cat)]
+			  end
+		  end, Specs).
+
+suites(Dir, App) ->
+    Glob=filename:join([filename:dirname(Dir), App++"_test",
 			"*_SUITE.erl"]),
     Suites=filelib:wildcard(Glob),
     [filename_to_atom(Name) || Name <- Suites].
diff --git a/lib/test_server/test/erl2html2_SUITE.erl b/lib/test_server/test/erl2html2_SUITE.erl
index 908985c879..796b84dedd 100644
--- a/lib/test_server/test/erl2html2_SUITE.erl
+++ b/lib/test_server/test/erl2html2_SUITE.erl
@@ -130,15 +130,7 @@ groups() ->
 %% @end
 %%--------------------------------------------------------------------
 all() ->
-    [m1].
-
-%%--------------------------------------------------------------------
-%% @spec TestCase() -> Info
-%% Info = [tuple()]
-%% @end
-%%--------------------------------------------------------------------
-m1() ->
-    [].
+    [macros_defined, macros_undefined].
 
 %%--------------------------------------------------------------------
 %% @spec TestCase(Config0) ->
@@ -149,19 +141,29 @@ m1() ->
 %% Comment = term()
 %% @end
 %%--------------------------------------------------------------------
-m1(Config) ->
-    {Src,Dst} = convert_module("m1",Config),
+macros_defined(Config) ->
+    %% let erl2html2 use epp as parser
+    DataDir = ?config(data_dir,Config),
+    InclDir = filename:join(DataDir, "include"),
+    {Src,Dst} = convert_module("m1",[InclDir],Config),
     {true,L} = check_line_numbers(Src,Dst),
-    ok = check_link_targets(Src,Dst,L,[{baz,0}]),
+    ok = check_link_targets(Src,Dst,L,[{baz,0}],[]),
     ok.
 
-convert_module(Mod,Config) ->
+macros_undefined(Config) ->
+    %% let erl2html2 use epp_dodger as parser
+    {Src,Dst} = convert_module("m1",[],Config),
+    {true,L} = check_line_numbers(Src,Dst),
+    ok = check_link_targets(Src,Dst,L,[{baz,0}],[{quux,0}]),
+    ok.
+
+convert_module(Mod,InclDirs,Config) ->
     DataDir = ?config(data_dir,Config),
     PrivDir = ?config(priv_dir,Config),
     Src = filename:join(DataDir,Mod++".erl"),
     Dst = filename:join(PrivDir,Mod++".erl.html"),
     io:format("<a href=\"~s\">~s</a>\n",[Src,filename:basename(Src)]),
-    ok = erl2html2:convert(Src, Dst, [], "<html><body>"),
+    ok = erl2html2:convert(Src, Dst, InclDirs, "<html><body>"),
     io:format("<a href=\"~s\">~s</a>\n",[Dst,filename:basename(Dst)]),
     {Src,Dst}.
 
@@ -229,36 +231,46 @@ check_line_number(Last,Line,OrigLine) ->
 %% function.
 %% The test module has -compile(export_all), so all functions are
 %% found by listing the exported ones.
-check_link_targets(Src,Dst,L,RmFncs) ->
+check_link_targets(Src,Dst,L,RmFncs,ShouldRemain) ->
     Mod = list_to_atom(filename:basename(filename:rootname(Src))),
     Exports = Mod:module_info(exports)--[{module_info,0},{module_info,1}|RmFncs],
-    {ok,{[],L},_} = xmerl_sax_parser:file(Dst,
-				     [{event_fun,fun sax_event/3},
-				      {event_state,{Exports,0}}]),
+    LastExprFuncs = [Func || {Func,_A} <- Exports],
+    {ok,{FAs,Fs,L},_} =
+	xmerl_sax_parser:file(Dst,
+			      [{event_fun,fun sax_event/3},
+			       {event_state,{Exports,LastExprFuncs,0}}]),    
+    true = (length(FAs) == length(ShouldRemain)),
+    [] = [FA || FA <- FAs, not lists:member(FA,ShouldRemain)],
+    [] = [F || F <- Fs, not lists:keymember(F,1,ShouldRemain)],
     ok.
 
 sax_event(Event,_Loc,State) ->
     sax_event(Event,State).
 
-sax_event({startElement,_Uri,"a",_QN,Attrs},{Exports,PrevLine}) ->
+sax_event({startElement,_Uri,"a",_QN,Attrs},{Exports,LastExprFuncs,PrevLine}) ->
     {_,_,"name",Name} = lists:keyfind("name",3,Attrs),
     case catch list_to_integer(Name) of
 	Line when is_integer(Line) ->
 	    case PrevLine + 1 of
 		Line ->
-%		    erlang:display({found_line,Line}),
-		    {Exports,Line};
+		    {Exports,LastExprFuncs,Line};
 		Other ->
 		    ct:fail({unexpected_line_number_target,Other})
 	    end;
 	{'EXIT',_} ->
-	    {match,[FStr,AStr]} =
-		 re:run(Name,"^(.*)-([0-9]+)$",[{capture,all_but_first,list}]),
+	    {match,[FStr,EndStr]} =
+		 re:run(Name,"^(.*)-(last_expr|[0-9]+)$",
+			[{capture,all_but_first,list}]),
 	    F = list_to_atom(http_uri:decode(FStr)),
-	    A = list_to_integer(AStr),
-%	    erlang:display({found_fnc,F,A}),
-	    A = proplists:get_value(F,Exports),
-	    {lists:delete({F,A},Exports),PrevLine}
+	    case EndStr of
+		"last_expr" ->
+		    true = lists:member(F,LastExprFuncs),
+		    {Exports,lists:delete(F,LastExprFuncs),PrevLine};
+		_ ->
+		    A = list_to_integer(EndStr),
+		    A = proplists:get_value(F,Exports),
+		    {lists:delete({F,A},Exports),LastExprFuncs,PrevLine}
+	    end
     end;
 sax_event(_,State) ->
     State.
diff --git a/lib/test_server/test/erl2html2_SUITE_data/include/header3.hrl b/lib/test_server/test/erl2html2_SUITE_data/include/header3.hrl
new file mode 100644
index 0000000000..2a20850a3a
--- /dev/null
+++ b/lib/test_server/test/erl2html2_SUITE_data/include/header3.hrl
@@ -0,0 +1 @@
+-define(EPP_SWITCH, on).
diff --git a/lib/test_server/test/erl2html2_SUITE_data/m1.erl b/lib/test_server/test/erl2html2_SUITE_data/m1.erl
index 156f1d0a51..1d405963a5 100644
--- a/lib/test_server/test/erl2html2_SUITE_data/m1.erl
+++ b/lib/test_server/test/erl2html2_SUITE_data/m1.erl
@@ -7,9 +7,15 @@
 
 -include("header1.hrl").
 -include("header2.hrl").
+-include("header3.hrl").
 
 -define(MACRO1,value).
 
+%% This macro is used to select parser in erl2html2.
+%% If EPP_SWITCH is defined epp is used, else epp_dodger.
+epp_switch() ->
+    ?EPP_SWITCH.
+
 %%% Comment
 foo(x) ->
     %% Comment
diff --git a/lib/test_server/vsn.mk b/lib/test_server/vsn.mk
index 2a2ed2b3b0..fd9e4e6d74 100644
--- a/lib/test_server/vsn.mk
+++ b/lib/test_server/vsn.mk
@@ -1 +1 @@
-TEST_SERVER_VSN = 3.8.1
+TEST_SERVER_VSN = 3.9
diff --git a/lib/tools/doc/src/cover.xml b/lib/tools/doc/src/cover.xml
index 07ffa65e3d..914baa7977 100644
--- a/lib/tools/doc/src/cover.xml
+++ b/lib/tools/doc/src/cover.xml
@@ -5,7 +5,7 @@
   <header>
     <copyright>
       <year>2001</year>
-      <year>2013</year>
+      <year>2015</year>
       <holder>Ericsson AB, All Rights Reserved</holder>
     </copyright>
     <legalnotice>
@@ -138,17 +138,18 @@
       </desc>
     </func>
     <func>
-      <name>compile(ModFile) -> Result</name>
-      <name>compile(ModFile, Options) -> Result</name>
-      <name>compile_module(ModFile) -> Result</name>
-      <name>compile_module(ModFile, Options) -> Result</name>
-      <fsummary>Compile a module for Cover analysis.</fsummary>
+      <name>compile(ModFiles) -> Result | [Result]</name>
+      <name>compile(ModFiles, Options) -> Result | [Result]</name>
+      <name>compile_module(ModFiles) -> Result | [Result]</name>
+      <name>compile_module(ModFiles, Options) -> Result | [Result]</name>
+      <fsummary>Compile one or more modules for Cover analysis.</fsummary>
       <type>
+	<v>ModFiles = ModFile | [ModFile]</v>
         <v>ModFile = Module | File</v>
         <v>&nbsp;Module = atom()</v>
         <v>&nbsp;File = string()</v>
         <v>Options = [Option]</v>
-        <v>&nbsp;Option = {i,Dir} | {d,Macro} | {d,Macro,Value}</v>
+        <v>&nbsp;Option = {i,Dir} | {d,Macro} | {d,Macro,Value} | export_all</v>
         <d>See <c>compile:file/2.</c></d>
         <v>Result = {ok,Module} | {error,File} | {error,not_main_node}</v>
       </type>
@@ -165,6 +166,9 @@
           returns <c>{ok,Module}</c>. Otherwise the function returns
           <c>{error,File}</c>. Errors and warnings are printed as they
           occur.</p>
+	<p>If a list of <c>ModFiles</c> is given as input, a list
+	  of <c>Result</c> will be returned. The order of the returned
+	  list is undefined.</p>
         <p>Note that the internal database is (re-)initiated during
           the compilation, meaning any previously collected coverage data
           for the module will be lost.</p>
@@ -194,9 +198,10 @@
       </desc>
     </func>
     <func>
-      <name>compile_beam(ModFile) -> Result</name>
-      <fsummary>Compile a module for Cover analysis, using an existing beam.</fsummary>
+      <name>compile_beam(ModFiles) -> Result | [Result]</name>
+      <fsummary>Compile one or more modules for Cover analysis, using existing beam(s).</fsummary>
       <type>
+	<v>ModFiles = ModFile | [ModFile]</v>
         <v>ModFile = Module | BeamFile</v>
         <v>&nbsp;Module = atom()</v>
         <v>&nbsp;BeamFile = string()</v>
@@ -229,6 +234,9 @@
           returned.</p>
         <p><c>{error,BeamFile}</c> is returned if the compiled code
           can not be loaded on the node.</p>
+	<p>If a list of <c>ModFiles</c> is given as input, a list
+	  of <c>Result</c> will be returned. The order of the returned
+	  list is undefined.</p>
       </desc>
     </func>
     <func>
@@ -251,16 +259,21 @@
       </desc>
     </func>
     <func>
-      <name>analyse(Module) -> {ok,Answer} | {error,Error}</name>
-      <name>analyse(Module, Analysis) -> {ok,Answer} | {error,Error}</name>
-      <name>analyse(Module, Level) -> {ok,Answer} | {error,Error}</name>
-      <name>analyse(Module, Analysis, Level) -> {ok,Answer} | {error,Error}</name>
-      <fsummary>Analyse a Cover compiled module.</fsummary>
+      <name>analyse() -> {result,Ok,Fail} | {error,not_main_node}</name>
+      <name>analyse(Modules) -> OneResult | {result,Ok,Fail} | {error,not_main_node}</name>
+      <name>analyse(Analysis) -> {result,Ok,Fail} | {error,not_main_node}</name>
+      <name>analyse(Level) -> {result,Ok,Fail} | {error,not_main_node}</name>
+      <name>analyse(Modules, Analysis) -> OneResult | {result,Ok,Fail} | {error,not_main_node}</name>
+      <name>analyse(Modules, Level) -> OneResult | {result,Ok,Fail} | {error,not_main_node}</name>
+      <name>analyse(Analysis, Level) -> {result,Ok,Fail} | {error,not_main_node}</name>
+      <name>analyse(Modules, Analysis, Level) -> OneResult | {result,Ok,Fail} | {error,not_main_node}</name>
+      <fsummary>Analyse one or more Cover compiled modules.</fsummary>
       <type>
-        <v>Module = atom()</v>
+	<v>Modules = Module | [Module]</v>
+        <v>Module = atom() </v>
         <v>Analysis = coverage | calls</v>
         <v>Level = line | clause | function | module</v>
-        <v>Answer = {Module,Value} | [{Item,Value}]</v>
+        <v>OneResult = {ok,{Module,Value}} | {ok,[{Item,Value}]} | {error, Error}</v>
         <v>&nbsp;Item = Line | Clause | Function</v>
         <v>&nbsp;&nbsp;Line = {M,N}</v>
         <v>&nbsp;&nbsp;Clause = {M,F,A,C}</v>
@@ -269,49 +282,67 @@
         <v>&nbsp;&nbsp;&nbsp;N = A = C = integer()</v>
         <v>&nbsp;Value = {Cov,NotCov} | Calls</v>
         <v>&nbsp;&nbsp;Cov = NotCov = Calls = integer()</v>
-        <v>Error = {not_cover_compiled,Module} | not_main_node</v>
+        <v>&nbsp;Error = {not_cover_compiled,Module}</v>
+	<v>Ok = [{Module,Value}] | [{Item,Value}]</v>
+	<v>Fail = [Error]</v>
       </type>
       <desc>
-        <p>Performs analysis of a Cover compiled module <c>Module</c>, as
+        <p>Performs analysis of one or more Cover compiled modules, as
           specified by <c>Analysis</c> and <c>Level</c> (see above), by
           examining the contents of the internal database.</p>
         <p><c>Analysis</c> defaults to <c>coverage</c> and <c>Level</c>
           defaults to <c>function</c>.</p>
-        <p>If <c>Module</c> is not Cover compiled, the function returns
-          <c>{error,{not_cover_compiled,Module}}</c>.</p>
-	<p>HINT: It is possible to issue multiple analyse_to_file commands at
-	  the same time. </p>
+	<p>If <c>Modules</c> is an atom (one module), the return will
+	  be <c>OneResult</c>, else the return will be
+	  <c>{result,Ok,Fail}</c>.</p>
+	<p>If <c>Modules</c> is not given, all modules that have data
+	  in the cover data table, are analysed. Note that this
+	  includes both cover compiled modules and imported
+	  modules.</p>
+        <p>If a given module is not Cover compiled, this is indicated
+          by the error reason <c>{not_cover_compiled,Module}</c>.</p>
       </desc>
     </func>
     <func>
-      <name>analyse_to_file(Module) -> </name>
-      <name>analyse_to_file(Module,Options) -> </name>
-      <name>analyse_to_file(Module, OutFile) -> </name>
-      <name>analyse_to_file(Module, OutFile, Options) ->  {ok,OutFile} | {error,Error}</name>
-      <fsummary>Detailed coverage analysis of a Cover compiled module.</fsummary>
+      <name>analyse_to_file() -> {result,Ok,Fail} | {error,not_main_node}</name>
+      <name>analyse_to_file(Modules) ->  Answer | {result,Ok,Fail} | {error,not_main_node}</name>
+      <name>analyse_to_file(Options) -> {result,Ok,Fail} | {error,not_main_node}</name>
+      <name>analyse_to_file(Modules,Options) -> Answer | {result,Ok,Fail} | {error,not_main_node}</name>
+      <fsummary>Detailed coverage analysis of one or more Cover compiled modules.</fsummary>
       <type>
+        <v>Modules = Module | [Module]</v>
         <v>Module = atom()</v>
-        <v>OutFile = string()</v>
+        <v>OutFile = OutDir = string()</v>
         <v>Options = [Option]</v>
-        <v>Option = html</v>
-        <v>Error = {not_cover_compiled,Module} | {file,File,Reason} | no_source_code_found | not_main_node</v>
+        <v>Option = html | {outfile,OutFile} | {outdir,OutDir}</v>
+	<v>Answer = {ok,OutFile} | {error,Error}</v>
+	<v>Ok = [OutFile]</v>
+	<v>Fail = [Error]</v>
+        <v>Error = {not_cover_compiled,Module} | {file,File,Reason} | {no_source_code_found,Module}</v>
         <v>&nbsp;File = string()</v>
         <v>&nbsp;Reason = term()</v>
       </type>
       <desc>
-        <p>Makes a copy <c>OutFile</c> of the source file for a module
-          <c>Module</c>, where it for each executable line is specified
+        <p>Makes copies of the source file for the given modules,
+          where it for each executable line is specified
           how many times it has been executed.</p>
         <p>The output file <c>OutFile</c> defaults to
           <c>Module.COVER.out</c>, or <c>Module.COVER.html</c> if the
           option <c>html</c> was used.</p>
-        <p>If <c>Module</c> is not Cover compiled, the function returns
-          <c>{error,{not_cover_compiled,Module}}</c>.</p>
+	<p>If <c>Modules</c> is an atom (one module), the return will
+	  be <c>Answer</c>, else the return will be a
+	  list, <c>{result,Ok,Fail}</c>.</p>
+	<p>If <c>Modules</c> is not given, all modules that have data
+	  in the cover data table, are analysed. Note that this
+	  includes both cover compiled modules and imported
+	  modules.</p>
+        <p>If a module is not Cover compiled, this is indicated by the
+          error reason <c>{not_cover_compiled,Module}</c>.</p>
         <p>If the source file and/or the output file cannot be opened using
           <c>file:open/2</c>, the function returns
           <c>{error,{file,File,Reason}}</c> where <c>File</c> is the file
           name and <c>Reason</c> is the error reason.</p>
-        <p>If the module was cover compiled from the <c>.beam</c>
+        <p>If a module was cover compiled from the <c>.beam</c>
           file, i.e. using <c>compile_beam/1</c> or
           <c>compile_beam_directory/0,1</c>, it is assumed that the
           source code can be found in the same directory as the
@@ -322,10 +353,8 @@
           joining <c>../src</c> and the tail of the compiled path
           below a trailing <c>src</c> component, then the compiled
           path itself.
-          If no source code is found,
-          <c>{error,no_source_code_found}</c> is returned.</p>
-	<p>HINT: It is possible to issue multiple analyse_to_file commands at
-	  the same time. </p> 
+          If no source code is found, this is indicated by the error reason
+          <c>{no_source_code_found,Module}</c>.</p>
       </desc>
     </func>
     <func>
@@ -339,7 +368,7 @@
         <v>OutFile = string()</v>
         <v>Options = [Option]</v>
         <v>Option = html</v>
-        <v>Error = {not_cover_compiled,Module} | {file,File,Reason} | no_source_code_found | not_main_node</v>
+        <v>Error = {not_cover_compiled,Module} | {file,File,Reason} | {no_source_code_found,Module} | not_main_node</v>
         <v>&nbsp;File = string()</v>
         <v>&nbsp;Reason = term()</v>
       </type>
diff --git a/lib/tools/doc/src/cprof.xml b/lib/tools/doc/src/cprof.xml
index 553597837e..bfddb9f5a8 100644
--- a/lib/tools/doc/src/cprof.xml
+++ b/lib/tools/doc/src/cprof.xml
@@ -66,7 +66,7 @@
     <func>
       <name>analyse() -> {AllCallCount, ModAnalysisList}</name>
       <name>analyse(Limit) -> {AllCallCount, ModAnalysisList}</name>
-      <name>analyse(Mod) -> ModAnlysis</name>
+      <name>analyse(Mod) -> ModAnalysis</name>
       <name>analyse(Mod, Limit) -> ModAnalysis</name>
       <fsummary>Collect and analyse call counters.</fsummary>
       <type>
diff --git a/lib/tools/emacs/erlang-skels.el b/lib/tools/emacs/erlang-skels.el
index 78929ac510..8d2c02e455 100644
--- a/lib/tools/emacs/erlang-skels.el
+++ b/lib/tools/emacs/erlang-skels.el
@@ -1,7 +1,7 @@
 ;;
 ;; %CopyrightBegin%
 ;;
-;; Copyright Ericsson AB 2010. All Rights Reserved.
+;; Copyright Ericsson AB 2010-2014. All Rights Reserved.
 ;;
 ;; The contents of this file are subject to the Erlang Public License,
 ;; Version 1.1, (the "License"); you may not use this file except in
@@ -352,26 +352,25 @@ Please see the function `tempo-define-template'.")
     "%% @doc" n
     "%% Whenever a supervisor is started using supervisor:start_link/[2,3]," n
     "%% this function is called by the new process to find out about" n
-    "%% restart strategy, maximum restart frequency and child" n
+    "%% restart strategy, maximum restart intensity, and child" n
     "%% specifications." n
     "%%" n
     "%% @spec init(Args) -> {ok, {SupFlags, [ChildSpec]}} |" n
     "%%                     ignore |" n
     "%%                     {error, Reason}" n
     (erlang-skel-separator-end 2)
-    "init([]) ->" n>
-    "RestartStrategy = one_for_one," n>
-    "MaxRestarts = 1000," n>
-    "MaxSecondsBetweenRestarts = 3600," n
-    "" n>
-    "SupFlags = {RestartStrategy, MaxRestarts, MaxSecondsBetweenRestarts}," n
+    "init([]) ->" n
     "" n>
-    "Restart = permanent," n>
-    "Shutdown = 2000," n>
-    "Type = worker," n
+    "SupFlags = #{strategy => one_for_one," n>
+    "intensity => 1," n>
+    "period => 5}," n
     "" n>
-    "AChild = {'AName', {'AModule', start_link, []}," n>
-    "Restart, Shutdown, Type, ['AModule']}," n
+    "AChild = #{id => 'AName'," n>
+    "start => {'AModule', start_link, []}," n>
+    "restart => permanent," n>
+    "shutdown => 5000," n>
+    "type => worker," n>
+    "modules => ['AModule']}," n
     "" n>
     "{ok, {SupFlags, [AChild]}}." n
     n
@@ -379,7 +378,7 @@ Please see the function `tempo-define-template'.")
     "%%% Internal functions" n
     (erlang-skel-double-separator-end 3)
     )
-  "*The template of an supervisor behaviour.
+  "*The template of a supervisor behaviour.
 Please see the function `tempo-define-template'.")
 
 (defvar erlang-skel-supervisor-bridge
@@ -449,7 +448,7 @@ Please see the function `tempo-define-template'.")
     "%%% Internal functions" n
     (erlang-skel-double-separator-end 3)
     )
-  "*The template of an supervisor_bridge behaviour.
+  "*The template of a supervisor_bridge behaviour.
 Please see the function `tempo-define-template'.")
 
 (defvar erlang-skel-generic-server
diff --git a/lib/tools/emacs/erlang.el b/lib/tools/emacs/erlang.el
index 0c003bab39..3610356355 100644
--- a/lib/tools/emacs/erlang.el
+++ b/lib/tools/emacs/erlang.el
@@ -2444,7 +2444,10 @@ This is automagically called by the user level function `indent-region'."
       ;; Parse the Erlang code from the beginning of the clause to
       ;; the beginning of the region.
       (while (< (point) indent-point)
-	(setq state (erlang-partial-parse (point) indent-point state)))
+        (let ((pt (point)))
+          (setq state (erlang-partial-parse pt indent-point state))
+          (if (= pt (point))
+              (error "Illegal syntax"))))
       ;; Indent every line in the region
       (while continue
 	(goto-char indent-point)
@@ -2480,8 +2483,11 @@ This is automagically called by the user level function `indent-region'."
 	(if (>= from-end (- (point-max) indent-point))
 	    (setq continue nil)
 	  (while (< (point) indent-point)
-	    (setq state (erlang-partial-parse
-			 (point) indent-point state))))))))
+            (let ((pt (point)))
+              (setq state (erlang-partial-parse
+                           pt indent-point state))
+              (if (= pt (point))
+                  (error "Illegal syntax")))))))))
 
 
 (defun erlang-indent-current-buffer ()
@@ -2528,7 +2534,10 @@ Return nil if line starts inside string, t if in a comment."
 	  (goto-char parse-start)
 	(erlang-beginning-of-clause))
       (while (< (point) indent-point)
-	(setq state (erlang-partial-parse (point) indent-point state)))
+        (let ((pt (point)))
+          (setq state (erlang-partial-parse pt indent-point state))
+          (if (= pt (point))
+              (error "Illegal syntax"))))
       (erlang-calculate-stack-indent indent-point state))))
 
 (defun erlang-show-syntactic-information ()
@@ -2698,12 +2707,13 @@ Value is list (stack token-start token-type in-what)."
 	(erlang-push (list '|| token (current-column)) stack)
 	(forward-char 2))
 
-       ;; Bit-syntax open paren
-       ((looking-at "<<")
+       ;; Bit-syntax open. Note that map syntax allows "<<" to follow ":="
+       ;; or "=>" without intervening whitespace, so handle that case here
+       ((looking-at "\\(:=\\|=>\\)?<<")
 	(erlang-push (list '<< token (current-column)) stack)
-	(forward-char 2))
+	(forward-char (- (match-end 0) (match-beginning 0))))
        
-       ;; Bbit-syntax close paren
+       ;; Bit-syntax close
        ((looking-at ">>")
 	(while (memq (car (car stack)) '(|| ->))
 	  (erlang-pop stack))
@@ -4188,7 +4198,10 @@ This function is designed to be a member of a criteria list."
 	    ;; Do not return `stop' when inside a list comprehension
 	    ;; construction.  (The point must be after `||').
 	    (while (< (point) orig-point)
-	      (setq state (erlang-partial-parse (point) orig-point state)))
+              (let ((pt (point)))
+                (setq state (erlang-partial-parse pt orig-point state))
+                (if (= pt (point))
+                    (error "Illegal syntax"))))
 	    (if (and (car state) (eq (car (car (car state))) '||))
 		nil
 	      'stop)))
diff --git a/lib/tools/emacs/test.erl.indented b/lib/tools/emacs/test.erl.indented
index 1c1086ca58..abb05fd59b 100644
--- a/lib/tools/emacs/test.erl.indented
+++ b/lib/tools/emacs/test.erl.indented
@@ -32,6 +32,14 @@
 -module(test).
 -compile(export_all).
 
+%% Used to cause an "Unbalanced parentheses" error.
+foo(M) ->
+    M#{a :=<<"a">>
+      ,b:=1}.
+foo() ->
+    #{a =><<"a">>
+     ,b=>1}.
+
 %% Module attributes should be highlighted
 
 -export([t/1]).
diff --git a/lib/tools/emacs/test.erl.orig b/lib/tools/emacs/test.erl.orig
index a9d09000d2..3d8f29fe18 100644
--- a/lib/tools/emacs/test.erl.orig
+++ b/lib/tools/emacs/test.erl.orig
@@ -32,6 +32,14 @@
 -module(test).
 -compile(export_all).
 
+%% Used to cause an "Unbalanced parentheses" error.
+foo(M) ->
+M#{a :=<<"a">>
+,b:=1}.
+foo() ->
+#{a =><<"a">>
+,b=>1}.
+
 %% Module attributes should be highlighted
 
 -export([t/1]).
diff --git a/lib/tools/src/cover.erl b/lib/tools/src/cover.erl
index 31754015f7..71e17e0ba1 100644
--- a/lib/tools/src/cover.erl
+++ b/lib/tools/src/cover.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2001-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -77,8 +77,11 @@
 	 compile/1, compile/2, compile_module/1, compile_module/2,
 	 compile_directory/0, compile_directory/1, compile_directory/2,
 	 compile_beam/1, compile_beam_directory/0, compile_beam_directory/1,
-	 analyse/1, analyse/2, analyse/3, analyze/1, analyze/2, analyze/3,
+	 analyse/0, analyse/1, analyse/2, analyse/3,
+	 analyze/0, analyze/1, analyze/2, analyze/3,
+	 analyse_to_file/0,
 	 analyse_to_file/1, analyse_to_file/2, analyse_to_file/3,
+	 analyze_to_file/0,
 	 analyze_to_file/1, analyze_to_file/2, analyze_to_file/3,
 	 async_analyse_to_file/1,async_analyse_to_file/2,
 	 async_analyse_to_file/3, async_analyze_to_file/1,
@@ -109,6 +112,7 @@
 	       line     = '_'               % integer()
 	      }).
 -define(BUMP_REC_NAME,bump).
+-define(CHUNK_SIZE, 20000).
 
 -record(vars, {module,                      % atom() Module name
 	       
@@ -132,7 +136,7 @@
 -define(SERVER, cover_server).
 
 %% Line doesn't matter.
--define(BLOCK(Expr), {block,0,[Expr]}).
+-define(BLOCK(Expr), {block,erl_anno:new(0),[Expr]}).
 -define(BLOCK1(Expr), 
         if 
             element(1, Expr) =:= block ->
@@ -181,10 +185,11 @@ start(Node) when is_atom(Node) ->
 start(Nodes) ->
     call({start_nodes,remove_myself(Nodes,[])}).
 
-%% compile(ModFile) ->
-%% compile(ModFile, Options) ->
-%% compile_module(ModFile) -> Result
-%% compile_module(ModFile, Options) -> Result
+%% compile(ModFiles) ->
+%% compile(ModFiles, Options) ->
+%% compile_module(ModFiles) -> Result
+%% compile_module(ModFiles, Options) -> Result
+%%   ModFiles = ModFile | [ModFile]
 %%   ModFile = Module | File
 %%     Module = atom()
 %%     File = string()
@@ -198,18 +203,27 @@ compile(ModFile, Options) ->
 compile_module(ModFile) when is_atom(ModFile);
 			     is_list(ModFile) ->
     compile_module(ModFile, []).
-compile_module(Module, Options) when is_atom(Module), is_list(Options) ->
-    compile_module(atom_to_list(Module), Options);
-compile_module(File, Options) when is_list(File), is_list(Options) ->
-    WithExt = case filename:extension(File) of
-		  ".erl" ->
-		      File;
-		  _ ->
-		      File++".erl"
-	      end,
-    AbsFile = filename:absname(WithExt),
-    [R] = compile_modules([AbsFile], Options),
-    R.
+compile_module(ModFile, Options) when is_atom(ModFile);
+				      is_list(ModFile), is_integer(hd(ModFile)) ->
+    [R] = compile_module([ModFile], Options),
+    R;
+compile_module(ModFiles, Options) when is_list(Options) ->
+    AbsFiles =
+	[begin
+	     File =
+		 case ModFile of
+		     _ when is_atom(ModFile) -> atom_to_list(ModFile);
+		     _ when is_list(ModFile) -> ModFile
+		 end,
+	     WithExt = case filename:extension(File) of
+			   ".erl" ->
+			       File;
+			   _ ->
+			       File++".erl"
+		       end,
+	     filename:absname(WithExt)
+	 end || ModFile <- ModFiles],
+    compile_modules(AbsFiles, Options).
 
 %% compile_directory() ->
 %% compile_directory(Dir) ->
@@ -240,13 +254,14 @@ compile_directory(Dir, Options) when is_list(Dir), is_list(Options) ->
 
 compile_modules(Files,Options) ->
     Options2 = filter_options(Options),
-    compile_modules(Files,Options2,[]).
+    %% compile_modules(Files,Options2,[]).
+    call({compile, Files, Options2}).
 
-compile_modules([File|Files], Options, Result) ->
-    R = call({compile, File, Options}),
-    compile_modules(Files,Options,[R|Result]);
-compile_modules([],_Opts,Result) ->
-    lists:reverse(Result).
+%% compile_modules([File|Files], Options, Result) ->
+%%     R = call({compile, File, Options}),
+%%     compile_modules(Files,Options,[R|Result]);
+%% compile_modules([],_Opts,Result) ->
+%%     lists:reverse(Result).
 
 filter_options(Options) ->
     lists:filter(fun(Option) ->
@@ -264,30 +279,17 @@ filter_options(Options) ->
 %%   ModFile - see compile/1
 %%   Result - see compile/1
 %%   Reason = non_existing | already_cover_compiled
-compile_beam(Module) when is_atom(Module) ->
-    case code:which(Module) of
-	non_existing -> 
+compile_beam(ModFile0) when is_atom(ModFile0);
+			    is_list(ModFile0), is_integer(hd(ModFile0)) ->
+    case compile_beams([ModFile0]) of
+	[{error,{non_existing,_}}] ->
+	    %% Backwards compatibility
 	    {error,non_existing};
-	?TAG ->
-	    compile_beam(Module,?TAG);
-	File ->
-	    compile_beam(Module,File)
+	[Result] ->
+	    Result
     end;
-compile_beam(File) when is_list(File) ->
-    {WithExt,WithoutExt}
-	= case filename:rootname(File,".beam") of
-	      File ->
-		  {File++".beam",File};
-	      Rootname ->
-		  {File,Rootname}
-	      end,
-    AbsFile = filename:absname(WithExt),
-    Module = list_to_atom(filename:basename(WithoutExt)),
-    compile_beam(Module,AbsFile).
-
-compile_beam(Module,File) ->
-    call({compile_beam,Module,File}).
-    
+compile_beam(ModFiles) when is_list(ModFiles) ->
+    compile_beams(ModFiles).
 
 
 %% compile_beam_directory(Dir) -> [Result] | {error,Reason}
@@ -312,19 +314,52 @@ compile_beam_directory(Dir) when is_list(Dir) ->
 	    Error
     end.
 
-compile_beams(Files) ->
-    compile_beams(Files,[]).
-compile_beams([File|Files],Result) ->
-    R = compile_beam(File),
-    compile_beams(Files,[R|Result]);
-compile_beams([],Result) ->
-    lists:reverse(Result).
+compile_beams(ModFiles0) ->
+    ModFiles = get_mods_and_beams(ModFiles0,[]),
+    call({compile_beams,ModFiles}).
 
-
-%% analyse(Module) ->
-%% analyse(Module, Analysis) ->
-%% analyse(Module, Level) ->
-%% analyse(Module, Analysis, Level) -> {ok,Answer} | {error,Error}
+get_mods_and_beams([Module|ModFiles],Acc) when is_atom(Module) ->
+    case code:which(Module) of
+	non_existing ->
+	    get_mods_and_beams(ModFiles,[{error,{non_existing,Module}}|Acc]);
+	File ->
+	    get_mods_and_beams([{Module,File}|ModFiles],Acc)
+    end;
+get_mods_and_beams([File|ModFiles],Acc) when is_list(File) ->
+    {WithExt,WithoutExt}
+	= case filename:rootname(File,".beam") of
+	      File ->
+		  {File++".beam",File};
+	      Rootname ->
+		  {File,Rootname}
+	      end,
+    AbsFile = filename:absname(WithExt),
+    Module = list_to_atom(filename:basename(WithoutExt)),
+    get_mods_and_beams([{Module,AbsFile}|ModFiles],Acc);
+get_mods_and_beams([{Module,File}|ModFiles],Acc) ->
+    %% Check for duplicates
+    case lists:keyfind(Module,2,Acc) of
+	{ok,Module,File} ->
+	    %% Duplicate, but same file so ignore
+	    get_mods_and_beams(ModFiles,Acc);
+	{ok,Module,_OtherFile} ->
+	    %% Duplicate and differnet file - error
+	    get_mods_and_beams(ModFiles,[{error,{duplicate,Module}}|Acc]);
+	_ ->
+	    get_mods_and_beams(ModFiles,[{ok,Module,File}|Acc])
+    end;
+get_mods_and_beams([],Acc) ->
+    lists:reverse(Acc).
+
+
+%% analyse(Modules) ->
+%% analyse(Analysis) ->
+%% analyse(Level) ->
+%% analyse(Modules, Analysis) ->
+%% analyse(Modules, Level) ->
+%% analyse(Analysis, Level)
+%% analyse(Modules, Analysis, Level) -> {ok,Answer} | {error,Error}
+%%   Modules = Module | [Module]
 %%   Module = atom()
 %%   Analysis = coverage | calls
 %%   Level = line | clause | function | module
@@ -337,48 +372,74 @@ compile_beams([],Result) ->
 %%        N = A = C = integer()
 %%     Value = {Cov,NotCov} | Calls
 %%       Cov = NotCov = Calls = integer()
-%%   Error = {not_cover_compiled,Module}
+%%   Error = {not_cover_compiled,Module} | not_main_node
+-define(is_analysis(__A__),
+	(__A__=:=coverage orelse __A__=:=calls)).
+-define(is_level(__L__),
+	(__L__=:=line orelse __L__=:=clause orelse
+	 __L__=:=function orelse __L__=:=module)).
+analyse() ->
+    analyse('_').
+
+analyse(Analysis) when ?is_analysis(Analysis) ->
+    analyse('_', Analysis);
+analyse(Level) when ?is_level(Level) ->
+    analyse('_', Level);
 analyse(Module) ->
     analyse(Module, coverage).
-analyse(Module, Analysis) when Analysis=:=coverage; Analysis=:=calls ->
+
+analyse(Analysis, Level) when ?is_analysis(Analysis) andalso
+			      ?is_level(Level) ->
+    analyse('_', Analysis, Level);
+analyse(Module, Analysis) when ?is_analysis(Analysis) ->
     analyse(Module, Analysis, function);
-analyse(Module, Level) when Level=:=line; Level=:=clause; Level=:=function;
-			    Level=:=module ->
+analyse(Module, Level) when ?is_level(Level) ->
     analyse(Module, coverage, Level).
-analyse(Module, Analysis, Level) when is_atom(Module),
-				      Analysis=:=coverage; Analysis=:=calls,
-				      Level=:=line; Level=:=clause;
-				      Level=:=function; Level=:=module ->
+
+analyse(Module, Analysis, Level) when ?is_analysis(Analysis),
+				      ?is_level(Level) ->
     call({{analyse, Analysis, Level}, Module}).
 
+analyze() -> analyse( ).
 analyze(Module) -> analyse(Module).
 analyze(Module, Analysis) -> analyse(Module, Analysis).
 analyze(Module, Analysis, Level) -> analyse(Module, Analysis, Level).
 
-%% analyse_to_file(Module) ->
-%% analyse_to_file(Module, Options) ->
-%% analyse_to_file(Module, OutFile) ->
-%% analyse_to_file(Module, OutFile, Options) -> {ok,OutFile} | {error,Error}
+%% analyse_to_file() ->
+%% analyse_to_file(Modules) ->
+%% analyse_to_file(Modules, Options) ->
+%%   Modules = Module | [Module]
 %%   Module = atom()
 %%   OutFile = string()
 %%   Options = [Option]
-%%     Option = html
+%%     Option = html | {outfile,filename()} | {outdir,dirname()}
 %%   Error = {not_cover_compiled,Module} | no_source_code_found |
 %%           {file,File,Reason}
 %%     File = string()
 %%     Reason = term()
-analyse_to_file(Module) when is_atom(Module) ->
-    analyse_to_file(Module, outfilename(Module,[]), []).
-analyse_to_file(Module, []) when is_atom(Module) ->
-    analyse_to_file(Module, outfilename(Module,[]), []);
-analyse_to_file(Module, Options) when is_atom(Module),
-				      is_list(Options), is_atom(hd(Options)) ->
-    analyse_to_file(Module, outfilename(Module,Options), Options);
-analyse_to_file(Module, OutFile) when is_atom(Module), is_list(OutFile) ->
-    analyse_to_file(Module, OutFile, []).
-analyse_to_file(Module, OutFile, Options) when is_atom(Module), is_list(OutFile) ->
-    call({{analyse_to_file, OutFile, Options}, Module}).
-
+%%
+%% Kept for backwards compatibility:
+%% analyse_to_file(Modules, OutFile) ->
+%% analyse_to_file(Modules, OutFile, Options) -> {ok,OutFile} | {error,Error}
+analyse_to_file() ->
+    analyse_to_file('_').
+analyse_to_file(Arg) ->
+    case is_options(Arg) of
+	true ->
+	    analyse_to_file('_',Arg);
+	false ->
+	    analyse_to_file(Arg,[])
+    end.
+analyse_to_file(Module, OutFile) when is_list(OutFile), is_integer(hd(OutFile)) ->
+    %% Kept for backwards compatibility
+    analyse_to_file(Module, [{outfile,OutFile}]);
+analyse_to_file(Module, Options) when is_list(Options) ->
+    call({{analyse_to_file, Options}, Module}).
+analyse_to_file(Module, OutFile, Options) when is_list(OutFile) ->
+    %% Kept for backwards compatibility
+    analyse_to_file(Module,[{outfile,OutFile}|Options]).
+
+analyze_to_file() -> analyse_to_file().
 analyze_to_file(Module) -> analyse_to_file(Module).
 analyze_to_file(Module, OptOrOut) -> analyse_to_file(Module, OptOrOut).
 analyze_to_file(Module, OutFile, Options) -> 
@@ -391,6 +452,15 @@ async_analyse_to_file(Module, OutFileOrOpts) ->
 async_analyse_to_file(Module, OutFile, Options) ->
     do_spawn(?MODULE, analyse_to_file, [Module, OutFile, Options]).
 
+is_options([html]) ->
+    true; % this is not 100% safe - could be a module named html...
+is_options([html|Opts]) ->
+    is_options(Opts);
+is_options([{Opt,_}|_]) when Opt==outfile; Opt==outdir ->
+    true;
+is_options(_) ->
+    false.
+
 do_spawn(M,F,A) ->
     spawn_link(fun() ->
 		  case apply(M,F,A) of
@@ -408,13 +478,16 @@ async_analyze_to_file(Module, OutFileOrOpts) ->
 async_analyze_to_file(Module, OutFile, Options) ->
     async_analyse_to_file(Module, OutFile, Options).
 
-outfilename(Module,Opts) ->
-    case lists:member(html,Opts) of
-	true ->
-	    atom_to_list(Module)++".COVER.html";
-	false ->
-	    atom_to_list(Module)++".COVER.out"
-    end.
+outfilename(undefined, Module, HTML) ->
+    outfilename(Module, HTML);
+outfilename(OutDir, Module, HTML) ->
+    filename:join(OutDir, outfilename(Module, HTML)).
+
+outfilename(Module, true) ->
+    atom_to_list(Module)++".COVER.html";
+outfilename(Module, false) ->
+    atom_to_list(Module)++".COVER.out".
+
 
 %% export(File)
 %% export(File,Module) -> ok | {error,Reason}
@@ -559,7 +632,7 @@ init_main(Starter) ->
 			   ,{write_concurrency, true}
 			  ]),
     ets:new(?COVER_CLAUSE_TABLE, [set, public, named_table]),
-    ets:new(?BINARY_TABLE, [set, named_table]),
+    ets:new(?BINARY_TABLE, [set, public, named_table]),
     ets:new(?COLLECTION_TABLE, [set, public, named_table]),
     ets:new(?COLLECTION_CLAUSE_TABLE, [set, public, named_table]),
     net_kernel:monitor_nodes(true),
@@ -573,55 +646,19 @@ main_process_loop(State) ->
 	    reply(From, {ok,StartedNodes}),
 	    main_process_loop(State1);
 
-	{From, {compile, File, Options}} ->
-	    case do_compile(File, Options) of
-		{ok, Module} ->
-		    remote_load_compiled(State#main_state.nodes,[{Module,File}]),
-		    reply(From, {ok, Module}),
-		    Compiled = add_compiled(Module, File,
-					    State#main_state.compiled),
-		    Imported = remove_imported(Module,State#main_state.imported),
-		    NewState = State#main_state{compiled = Compiled,
-						imported = Imported},
-		    %% This module (cover) could have been reloaded. Make
-		    %% sure we run the new code.
-		    ?MODULE:main_process_loop(NewState);
-		error ->
-		    reply(From, {error, File}),
-		    main_process_loop(State)
-	    end;
+	{From, {compile, Files, Options}} ->
+	    {R,S} = do_compile(Files, Options, State),
+	    reply(From,R),
+	    %% This module (cover) could have been reloaded. Make
+	    %% sure we run the new code.
+	    ?MODULE:main_process_loop(S);
 
-	{From, {compile_beam, Module, BeamFile0}} ->
-	    Compiled0 = State#main_state.compiled,
-	    case get_beam_file(Module,BeamFile0,Compiled0) of
-		{ok,BeamFile} ->
-		    UserOptions = get_compile_options(Module,BeamFile),
-		    {Reply,Compiled} = 
-			case do_compile_beam(Module,BeamFile,UserOptions) of
-			    {ok, Module} ->
-				remote_load_compiled(State#main_state.nodes,
-						     [{Module,BeamFile}]),
-				C = add_compiled(Module,BeamFile,Compiled0),
-				{{ok,Module},C};
-			    error ->
-				{{error, BeamFile}, Compiled0};
-			    {error,Reason} -> % no abstract code
-				{{error, {Reason, BeamFile}}, Compiled0}
-			end,
-		    reply(From,Reply),
-		    Imported = remove_imported(Module,State#main_state.imported),
-		    NewState = State#main_state{compiled = Compiled,
-						imported = Imported},
-		    %% This module (cover) could have been reloaded. Make
-		    %% sure we run the new code.
-		    ?MODULE:main_process_loop(NewState);
-		{error,no_beam} ->
-		    %% The module has first been compiled from .erl, and now
-		    %% someone tries to compile it from .beam
-		    reply(From, 
-			  {error,{already_cover_compiled,no_beam_found,Module}}),
-		    main_process_loop(State)
-	    end;
+	{From, {compile_beams, ModsAndFiles}} ->
+	    {R,S} = do_compile_beams(ModsAndFiles,State),
+	    reply(From,R),
+	    %% This module (cover) could have been reloaded. Make
+	    %% sure we run the new code.
+	    ?MODULE:main_process_loop(S);
 
 	{From, {export,OutFile,Module}} ->
 	    spawn(fun() ->
@@ -706,6 +743,16 @@ main_process_loop(State) ->
             unregister(?SERVER),
 	    reply(From, ok);
 
+	{From, {{analyse, Analysis, Level}, '_'}} ->
+	    R = analyse_all(Analysis, Level, State),
+	    reply(From, R),
+	    main_process_loop(State);
+
+	{From, {{analyse, Analysis, Level}, Modules}} when is_list(Modules) ->
+	    R = analyse_list(Modules, Analysis, Level, State),
+	    reply(From, R),
+	    main_process_loop(State);
+
 	{From, {{analyse, Analysis, Level}, Module}} ->
 	    S = try 
 		    Loaded = is_loaded(Module, State),
@@ -722,15 +769,23 @@ main_process_loop(State) ->
 		end,
 	    main_process_loop(S);
 
-	{From, {{analyse_to_file, OutFile, Opts},Module}} ->
+	{From, {{analyse_to_file, Opts},'_'}} ->
+	    R = analyse_all_to_file(Opts, State),
+	    reply(From,R),
+	    main_process_loop(State);
+
+	{From, {{analyse_to_file, Opts},Modules}} when is_list(Modules) ->
+	    R = analyse_list_to_file(Modules, Opts, State),
+	    reply(From,R),
+	    main_process_loop(State);
+
+	{From, {{analyse_to_file, Opts},Module}} ->
 	    S = try 
 		    Loaded = is_loaded(Module, State),
 		    spawn(fun() ->
-				  ?SPAWN_DBG(analyse_to_file,
-					     {Module,OutFile, Opts}),
+				  ?SPAWN_DBG(analyse_to_file,{Module,Opts}),
 				  do_parallel_analysis_to_file(
-				    Module, OutFile, Opts, 
-				    Loaded, From, State)
+				    Module, Opts, Loaded, From, State)
 			  end),
 		    State
 		catch throw:Reason ->
@@ -848,11 +903,15 @@ remote_process_loop(State) ->
 	{remote,collect,Module,CollectorPid} ->
 	    self() ! {remote,collect,Module,CollectorPid, ?SERVER};
 
-	{remote,collect,Module,CollectorPid,From} ->
+	{remote,collect,Modules0,CollectorPid,From} ->
+	    Modules = case Modules0 of
+			  '_' -> [M || {M,_} <- State#remote_state.compiled];
+			  _ -> Modules0
+		      end,
 	   spawn(fun() ->
 			 ?SPAWN_DBG(remote_collect, 
-				    {Module, CollectorPid, From}),
-			 do_collect(Module, CollectorPid, From)
+				    {Modules, CollectorPid, From}),
+			 do_collect(Modules, CollectorPid, From)
 		 end),
 	    remote_process_loop(State);
 
@@ -893,39 +952,51 @@ remote_process_loop(State) ->
 	    
     end.
 
-do_collect(Module, CollectorPid, From) ->
-    AllMods = 
-	case Module of
-	    '_' -> ets:tab2list(?COVER_CLAUSE_TABLE);
-	    _ -> ets:lookup(?COVER_CLAUSE_TABLE, Module)
-	end,
-
-    %% Sending clause by clause in order to avoid large lists
+do_collect(Modules, CollectorPid, From) ->
     pmap(
-      fun({_Mod,Clauses}) ->
-	      lists:map(fun(Clause) ->
-				send_collected_data(Clause, CollectorPid)
-			end,Clauses)
-      end,AllMods),
+      fun(Module) ->
+	      Pattern = {#bump{module=Module, _='_'}, '$1'},
+	      MatchSpec = [{Pattern,[{'=/=','$1',0}],['$_']}],
+	      Match = ets:select(?COVER_TABLE,MatchSpec,?CHUNK_SIZE),
+	      send_chunks(Match, CollectorPid, [])
+      end,Modules),
     CollectorPid ! done,
     remote_reply(From, ok).
 
-send_collected_data({M,F,A,C,_L}, CollectorPid) ->
-    Pattern = 
-	{#bump{module=M, function=F, arity=A, clause=C}, '_'},
-    Bumps = ets:match_object(?COVER_TABLE, Pattern),
-    %% Reset
-    lists:foreach(fun({Bump,_N}) ->
-			  ets:insert(?COVER_TABLE, {Bump,0})
-		  end,
-		  Bumps),
-    CollectorPid ! {chunk,Bumps}.
+send_chunks('$end_of_table', _CollectorPid, Mons) ->
+    get_downs(Mons);
+send_chunks({Chunk,Continuation}, CollectorPid, Mons) ->
+    Mon = spawn_monitor(
+	    fun() ->
+		    lists:foreach(fun({Bump,_N}) ->
+					  ets:insert(?COVER_TABLE, {Bump,0})
+				  end,
+				  Chunk) end),
+    send_chunk(CollectorPid,Chunk),
+    send_chunks(ets:select(Continuation), CollectorPid, [Mon|Mons]).
+
+send_chunk(CollectorPid,Chunk) ->
+    CollectorPid ! {chunk,Chunk,self()},
+    receive continue -> ok end.
+
+get_downs([]) ->
+    ok;
+get_downs(Mons) ->
+    receive
+	{'DOWN', Ref, _Type, Pid, _Reason} = Down ->
+	    case lists:member({Pid,Ref},Mons) of
+		true ->
+		    get_downs(lists:delete({Pid,Ref},Mons));
+		false ->
+		    %% This should be handled somewhere else
+		    self() ! Down,
+		    get_downs(Mons)
+	    end
+    end.
 
-reload_originals([{Module,_File}|Compiled]) ->
-    do_reload_original(Module),
-    reload_originals(Compiled);
-reload_originals([]) ->
-    ok.
+reload_originals(Compiled) ->
+    Modules = [M || {M,_} <- Compiled],
+    pmap(fun do_reload_original/1, Modules).
 
 do_reload_original(Module) ->
     case code:which(Module) of
@@ -1068,15 +1139,40 @@ remote_load_compiled(_Nodes, [], [], _ModNum) ->
     ok;
 remote_load_compiled(Nodes, Compiled, Acc, ModNum) 
   when Compiled == []; ModNum == ?MAX_MODS ->
+    RemoteLoadData = get_downs_r(Acc),
     lists:foreach(
       fun(Node) -> 
-	      remote_call(Node,{remote,load_compiled,Acc})
+	      remote_call(Node,{remote,load_compiled,RemoteLoadData})
       end,
       Nodes),
     remote_load_compiled(Nodes, Compiled, [], 0);
 remote_load_compiled(Nodes, [MF | Rest], Acc, ModNum) ->
     remote_load_compiled(
-      Nodes, Rest, [get_data_for_remote_loading(MF) | Acc], ModNum + 1).
+      Nodes, Rest,
+      [spawn_job_r(fun() -> get_data_for_remote_loading(MF) end) | Acc],
+      ModNum + 1).
+
+spawn_job_r(Fun) ->
+    spawn_monitor(fun() -> exit(Fun()) end).
+
+get_downs_r([]) ->
+    [];
+get_downs_r(Mons) ->
+    receive
+	{'DOWN', Ref, _Type, Pid, R={_,_,_,_}} ->
+	    [R|get_downs_r(lists:delete({Pid,Ref},Mons))];
+	{'DOWN', Ref, _Type, Pid, Reason} = Down ->
+	    case lists:member({Pid,Ref},Mons) of
+		true ->
+		    %% Something went really wrong - don't hang!
+		    exit(Reason);
+		false ->
+		    %% This should be handled somewhere else
+		    self() ! Down,
+		    get_downs_r(Mons)
+	    end
+    end.
+
 
 %% Read all data needed for loading a cover compiled module on a remote node
 %% Binary is the beam code for the module and InitialTable is the initial
@@ -1113,11 +1209,11 @@ remote_reset(Module,Nodes) ->
       Nodes).        
 
 %% Collect data from remote nodes - used for analyse or stop(Node)
-remote_collect(Module,Nodes,Stop) ->
+remote_collect(Modules,Nodes,Stop) ->
     pmap(fun(Node) -> 
 		 ?SPAWN_DBG(remote_collect, 
-			    {Module, Nodes, Stop}),
-		 do_collection(Node, Module, Stop)
+			    {Modules, Nodes, Stop}),
+		 do_collection(Node, Modules, Stop)
 	 end,
 	 Nodes).
 
@@ -1138,8 +1234,9 @@ do_collection(Node, Module, Stop) ->
 collector_proc() ->
     ?SPAWN_DBG(collector_proc, []),
     receive 
-	{chunk,Chunk} ->
+	{chunk,Chunk,From} ->
 	    insert_in_collection_table(Chunk),
+	    From ! continue,
 	    collector_proc();
 	done ->
 	    ok
@@ -1259,6 +1356,19 @@ add_compiled(Module, File, [H|Compiled]) ->
 add_compiled(Module, File, []) ->
     [{Module,File}].
 
+are_loaded([Module|Modules], State, Loaded, Imported, Error) ->
+    try is_loaded(Module,State) of
+	{loaded,File} ->
+	    are_loaded(Modules, State, [{Module,File}|Loaded], Imported, Error);
+	{imported,File,_} ->
+	    are_loaded(Modules, State, Loaded, [{Module,File}|Imported], Error)
+    catch throw:_ ->
+	    are_loaded(Modules, State, Loaded, Imported,
+		       [{not_cover_compiled,Module}|Error])
+    end;
+are_loaded([], _State, Loaded, Imported, Error) ->
+    {Loaded, Imported, Error}.
+
 is_loaded(Module, State) ->
     case get_file(Module, State#main_state.compiled) of
 	{ok, File} ->
@@ -1333,18 +1443,75 @@ get_compiled_still_loaded(Nodes,Compiled0) ->
 
 %%%--Compilation---------------------------------------------------------
 
-%% do_compile(File, Options) -> {ok,Module} | {error,Error}
-do_compile(File, UserOptions) ->
+do_compile_beams(ModsAndFiles, State) ->
+    Result0 = pmap(fun({ok,Module,File}) ->
+			  do_compile_beam(Module,File,State);
+		     (Error) ->
+			  Error
+		  end,
+		  ModsAndFiles),
+    Compiled = [{M,F} || {ok,M,F} <- Result0],
+    remote_load_compiled(State#main_state.nodes,Compiled),
+    fix_state_and_result(Result0,State,[]).
+
+do_compile_beam(Module,BeamFile0,State) ->
+    case get_beam_file(Module,BeamFile0,State#main_state.compiled) of
+	{ok,BeamFile} ->
+	    UserOptions = get_compile_options(Module,BeamFile),
+	    case do_compile_beam1(Module,BeamFile,UserOptions) of
+		{ok, Module} ->
+		    {ok,Module,BeamFile};
+		error ->
+		    {error, BeamFile};
+		{error,Reason} -> % no abstract code
+		    {error, {Reason, BeamFile}}
+	    end;
+	{error,no_beam} ->
+	    %% The module has first been compiled from .erl, and now
+	    %% someone tries to compile it from .beam
+	    {error,{already_cover_compiled,no_beam_found,Module}}
+    end.
+
+fix_state_and_result([{ok,Module,BeamFile}|Rest],State,Acc) ->
+    Compiled = add_compiled(Module,BeamFile,State#main_state.compiled),
+    Imported = remove_imported(Module,State#main_state.imported),
+    NewState = State#main_state{compiled=Compiled,imported=Imported},
+    fix_state_and_result(Rest,NewState,[{ok,Module}|Acc]);
+fix_state_and_result([Error|Rest],State,Acc) ->
+    fix_state_and_result(Rest,State,[Error|Acc]);
+fix_state_and_result([],State,Acc) ->
+    {lists:reverse(Acc),State}.
+
+
+do_compile(Files, Options, State) ->
+    Result0 = pmap(fun(File) ->
+			   do_compile(File, Options)
+		   end,
+		   Files),
+    Compiled = [{M,F} || {ok,M,F} <- Result0],
+    remote_load_compiled(State#main_state.nodes,Compiled),
+    fix_state_and_result(Result0,State,[]).
+
+do_compile(File, Options) ->    
+    case do_compile1(File, Options) of
+	{ok, Module} ->
+	    {ok,Module,File};
+	error ->
+	    {error,File}
+    end.
+
+%% do_compile1(File, Options) -> {ok,Module} | error
+do_compile1(File, UserOptions) ->
     Options = [debug_info,binary,report_errors,report_warnings] ++ UserOptions,
     case compile:file(File, Options) of
 	{ok, Module, Binary} ->
-	    do_compile_beam(Module,Binary,UserOptions);
+	    do_compile_beam1(Module,Binary,UserOptions);
 	error ->
 	    error
     end.
 
 %% Beam is a binary or a .beam file name
-do_compile_beam(Module,Beam,UserOptions) ->
+do_compile_beam1(Module,Beam,UserOptions) ->
     %% Clear database
     do_clear(Module),
     
@@ -1459,18 +1626,18 @@ expand({clause,Line,Pattern,Guards,Body}, Vs, N) ->
 expand({op,_Line,'andalso',ExprL,ExprR}, Vs, N) ->
     {ExpandedExprL,N2} = expand(ExprL, Vs, N),
     {ExpandedExprR,N3} = expand(ExprR, Vs, N2),
-    LineL = element(2, ExpandedExprL),
+    Anno = element(2, ExpandedExprL),
     {bool_switch(ExpandedExprL, 
                  ExpandedExprR,
-                 {atom,LineL,false},
+                 {atom,Anno,false},
                  Vs, N3),
      N3 + 1};
 expand({op,_Line,'orelse',ExprL,ExprR}, Vs, N) ->
     {ExpandedExprL,N2} = expand(ExprL, Vs, N),
     {ExpandedExprR,N3} = expand(ExprR, Vs, N2),
-    LineL = element(2, ExpandedExprL),
+    Anno = element(2, ExpandedExprL),
     {bool_switch(ExpandedExprL,
-                 {atom,LineL,true},
+                 {atom,Anno,true},
                  ExpandedExprR,
                  Vs, N3),
      N3 + 1};
@@ -1579,7 +1746,7 @@ munge_body(Expr, Vars) ->
 
 munge_body([Expr|Body], Vars, MungedBody, LastExprBumpLines) ->
     %% Here is the place to add a call to cover:bump/6!
-    Line = element(2, Expr),
+    Line = erl_anno:line(element(2, Expr)),
     Lines = Vars#vars.lines,
     case lists:member(Line,Lines) of
 	true -> % already a bump at this line
@@ -1715,17 +1882,18 @@ fix_cls([Cl | Cls], Line, Bump) ->
         false ->
             {clause,CL,P,G,Body} = Cl,
             UniqueVarName = list_to_atom(lists:concat(["$cover$ ",Line])),
-            V = {var,0,UniqueVarName},
+            A = erl_anno:new(0),
+            V = {var,A,UniqueVarName},
             [Last|Rest] = lists:reverse(Body),
-            Body1 = lists:reverse(Rest, [{match,0,V,Last},Bump,V]),
+            Body1 = lists:reverse(Rest, [{match,A,V,Last},Bump,V]),
             [{clause,CL,P,G,Body1} | fix_cls(Cls, Line, Bump)]
     end.
 
 bumps_line(E, L) ->
     try bumps_line1(E, L) catch true -> true end.
 
-bumps_line1({call,0,{remote,0,{atom,0,ets},{atom,0,update_counter}},
-             [{atom,0,?COVER_TABLE},{tuple,0,[_,_,_,_,_,{integer,0,Line}]},_]},
+bumps_line1({call,_,{remote,_,{atom,_,ets},{atom,_,update_counter}},
+             [{atom,_,?COVER_TABLE},{tuple,_,[_,_,_,_,_,{integer,_,Line}]},_]},
             Line) ->
     throw(true);
 bumps_line1([E | Es], Line) ->
@@ -1739,15 +1907,16 @@ bumps_line1(_, _) ->
 %%% End of fix of last expression.
 
 bump_call(Vars, Line) ->
-    {call,0,{remote,0,{atom,0,ets},{atom,0,update_counter}},
-     [{atom,0,?COVER_TABLE},
-      {tuple,0,[{atom,0,?BUMP_REC_NAME},
-                {atom,0,Vars#vars.module},
-                {atom,0,Vars#vars.function},
-                {integer,0,Vars#vars.arity},
-                {integer,0,Vars#vars.clause},
-                {integer,0,Line}]},
-      {integer,0,1}]}.
+    A = erl_anno:new(0),
+    {call,A,{remote,A,{atom,A,ets},{atom,A,update_counter}},
+     [{atom,A,?COVER_TABLE},
+      {tuple,A,[{atom,A,?BUMP_REC_NAME},
+                {atom,A,Vars#vars.module},
+                {atom,A,Vars#vars.function},
+                {integer,A,Vars#vars.arity},
+                {integer,A,Vars#vars.clause},
+                {integer,A,Line}]},
+      {integer,A,1}]}.
 
 munge_expr({match,Line,ExprL,ExprR}, Vars) ->
     {MungedExprL, Vars2} = munge_expr(ExprL, Vars),
@@ -1915,10 +2084,21 @@ common_elems(L1, L2) ->
 collect(Nodes) ->
     %% local node
     AllClauses = ets:tab2list(?COVER_CLAUSE_TABLE),
-    pmap(fun move_modules/1,AllClauses),
-    
+    Mon1 = spawn_monitor(fun() -> pmap(fun move_modules/1,AllClauses) end),
+
+    %% remote nodes
+    Mon2 = spawn_monitor(fun() -> remote_collect('_',Nodes,false) end),
+    get_downs([Mon1,Mon2]).
+
+%% Collect data for a list of modules
+collect(Modules,Nodes) ->
+    MS = [{{'$1','_'},[{'==','$1',M}],['$_']} || M <- Modules],
+    Clauses = ets:select(?COVER_CLAUSE_TABLE,MS),
+    Mon1 = spawn_monitor(fun() -> pmap(fun move_modules/1,Clauses) end),
+
     %% remote nodes
-    remote_collect('_',Nodes,false).
+    Mon2 = spawn_monitor(fun() -> remote_collect('_',Nodes,false) end),
+    get_downs([Mon1,Mon2]).
 
 %% Collect data for one module
 collect(Module,Clauses,Nodes) ->
@@ -1926,25 +2106,26 @@ collect(Module,Clauses,Nodes) ->
     move_modules({Module,Clauses}),
     
     %% remote nodes
-    remote_collect(Module,Nodes,false).
+    remote_collect([Module],Nodes,false).
 
 
 %% When analysing, the data from the local ?COVER_TABLE is moved to the
 %% ?COLLECTION_TABLE. Resetting data in ?COVER_TABLE
 move_modules({Module,Clauses}) ->
     ets:insert(?COLLECTION_CLAUSE_TABLE,{Module,Clauses}),
-    move_clauses(Clauses).
+    Pattern = {#bump{module=Module, _='_'}, '_'},
+    MatchSpec = [{Pattern,[],['$_']}],
+    Match = ets:select(?COVER_TABLE,MatchSpec,?CHUNK_SIZE),
+    do_move_module(Match).
     
-move_clauses([{M,F,A,C,_L}|Clauses]) ->
-    Pattern = {#bump{module=M, function=F, arity=A, clause=C}, '_'},
-    Bumps = ets:match_object(?COVER_TABLE,Pattern),
+do_move_module({Bumps,Continuation}) ->
     lists:foreach(fun({Key,Val}) ->
 			  ets:insert(?COVER_TABLE, {Key,0}),
 			  insert_in_collection_table(Key,Val)
 		  end,
 		  Bumps),
-    move_clauses(Clauses);
-move_clauses([]) ->
+    do_move_module(ets:select(Continuation));
+do_move_module('$end_of_table') ->
     ok.
 
 %% Given a .beam file, find the .erl file. Look first in same directory as
@@ -2002,6 +2183,26 @@ splice(BeamDir, SrcFile) ->
 revsplit(Path) ->
     lists:reverse(filename:split(Path)).
 
+analyse_list(Modules, Analysis, Level, State) ->
+    {LoadedMF, ImportedMF, Error} = are_loaded(Modules, State, [], [], []),
+    Loaded = [M || {M,_} <- LoadedMF],
+    Imported = [M || {M,_} <- ImportedMF],
+    collect(Loaded, State#main_state.nodes),
+    MS = [{{'$1','_'},[{'==','$1',M}],['$_']} || M <- Loaded ++ Imported],
+    AllClauses = ets:select(?COLLECTION_CLAUSE_TABLE,MS),
+    Fun = fun({Module,Clauses}) ->
+		  do_analyse(Module, Analysis, Level, Clauses)
+	  end,
+    {result, lists:flatten(pmap(Fun, AllClauses)), Error}.
+
+analyse_all(Analysis, Level, State) ->
+    collect(State#main_state.nodes),
+    AllClauses = ets:tab2list(?COLLECTION_CLAUSE_TABLE),
+    Fun = fun({Module,Clauses}) ->
+		  do_analyse(Module, Analysis, Level, Clauses)
+	  end,
+    {result, lists:flatten(pmap(Fun, AllClauses)), []}.
+
 do_parallel_analysis(Module, Analysis, Level, Loaded, From, State) ->
     analyse_info(Module,State#main_state.imported),
     C = case Loaded of
@@ -2016,7 +2217,7 @@ do_parallel_analysis(Module, Analysis, Level, Loaded, From, State) ->
 		Clauses
 	end,
     R = do_analyse(Module, Analysis, Level, C),
-    reply(From, R).
+    reply(From, {ok,R}).
 
 %% do_analyse(Module, Analysis, Level, Clauses)-> {ok,Answer} | {error,Error}
 %%   Clauses = [{Module,Function,Arity,Clause,Lines}]
@@ -2035,37 +2236,44 @@ do_analyse(Module, Analysis, line, _Clauses) ->
 			  {{Module,L}, N}
 		  end
 	  end,
-    Answer = lists:keysort(1, lists:map(Fun, Bumps)),
-    {ok, Answer};
-do_analyse(_Module, Analysis, clause, Clauses) ->
-    Fun = case Analysis of
-	      coverage ->
-		  fun({M,F,A,C,Ls}) ->
-			  Pattern = {#bump{module=M,function=F,arity=A,
-					   clause=C},0},
-			  Bumps = ets:match_object(?COLLECTION_TABLE, Pattern),
-			  NotCov = length(Bumps),
-			  {{M,F,A,C}, {Ls-NotCov, NotCov}}
-		  end;
-	      calls ->
-		  fun({M,F,A,C,_Ls}) ->
-			  Pattern = {#bump{module=M,function=F,arity=A,
-					   clause=C},'_'},
-			  Bumps = ets:match_object(?COLLECTION_TABLE, Pattern),
-			  {_Bump, Calls} = hd(lists:keysort(1, Bumps)),
-			  {{M,F,A,C}, Calls}
-		  end
-	  end,
-    Answer = lists:map(Fun, Clauses),
-    {ok, Answer};
+    lists:keysort(1, lists:map(Fun, Bumps));
+do_analyse(Module, Analysis, clause, _Clauses) ->
+    Pattern = {#bump{module=Module},'_'},
+    Bumps = lists:keysort(1,ets:match_object(?COLLECTION_TABLE, Pattern)),
+    analyse_clause(Analysis,Bumps);
 do_analyse(Module, Analysis, function, Clauses) ->
-    {ok, ClauseResult} = do_analyse(Module, Analysis, clause, Clauses),
-    Result = merge_clauses(ClauseResult, merge_fun(Analysis)),
-    {ok, Result};
+    ClauseResult = do_analyse(Module, Analysis, clause, Clauses),
+    merge_clauses(ClauseResult, merge_fun(Analysis));
 do_analyse(Module, Analysis, module, Clauses) ->
-    {ok, FunctionResult} = do_analyse(Module, Analysis, function, Clauses),
+    FunctionResult = do_analyse(Module, Analysis, function, Clauses),
     Result = merge_functions(FunctionResult, merge_fun(Analysis)),
-    {ok, {Module,Result}}.
+    {Module,Result}.
+
+analyse_clause(_,[]) ->
+    [];
+analyse_clause(coverage,
+	       [{#bump{module=M,function=F,arity=A,clause=C},_}|_]=Bumps) ->
+    analyse_clause_cov(Bumps,{M,F,A,C},0,0,[]);
+analyse_clause(calls,Bumps) ->
+    analyse_clause_calls(Bumps,{x,x,x,x},[]).
+
+analyse_clause_cov([{#bump{module=M,function=F,arity=A,clause=C},N}|Bumps],
+		   {M,F,A,C}=Clause,Ls,NotCov,Acc) ->
+    analyse_clause_cov(Bumps,Clause,Ls+1,if N==0->NotCov+1; true->NotCov end,Acc);
+analyse_clause_cov([{#bump{module=M1,function=F1,arity=A1,clause=C1},_}|_]=Bumps,
+		    Clause,Ls,NotCov,Acc) ->
+    analyse_clause_cov(Bumps,{M1,F1,A1,C1},0,0,[{Clause,{Ls-NotCov,NotCov}}|Acc]);
+analyse_clause_cov([],Clause,Ls,NotCov,Acc) ->
+    lists:reverse(Acc,[{Clause,{Ls-NotCov,NotCov}}]).
+
+analyse_clause_calls([{#bump{module=M,function=F,arity=A,clause=C},_}|Bumps],
+		     {M,F,A,C}=Clause,Acc) ->
+    analyse_clause_calls(Bumps,Clause,Acc);
+analyse_clause_calls([{#bump{module=M1,function=F1,arity=A1,clause=C1},N}|Bumps],
+		     _Clause,Acc) ->
+    analyse_clause_calls(Bumps,{M1,F1,A1,C1},[{{M1,F1,A1,C1},N}|Acc]);
+analyse_clause_calls([],_Clause,Acc) ->
+    lists:reverse(Acc).
 
 merge_fun(coverage) ->
     fun({Cov1,NotCov1}, {Cov2,NotCov2}) ->
@@ -2094,7 +2302,50 @@ merge_functions([{_MFA,R}|Functions], MFun, Result) ->
 merge_functions([], _MFun, Result) ->
     Result.
 
-do_parallel_analysis_to_file(Module, OutFile, Opts, Loaded, From, State) ->
+analyse_list_to_file(Modules, Opts, State) ->
+    {LoadedMF, ImportedMF, Error} = are_loaded(Modules, State, [], [], []),
+    collect([M || {M,_} <- LoadedMF], State#main_state.nodes),
+    OutDir = proplists:get_value(outdir,Opts),
+    HTML = lists:member(html,Opts),
+    Fun = fun({Module,File}) ->
+		  OutFile = outfilename(OutDir,Module,HTML),
+		  do_analyse_to_file(Module,File,OutFile,HTML,State)
+	  end,
+    {Ok,Error1} = split_ok_error(pmap(Fun, LoadedMF++ImportedMF),[],[]),
+    {result,Ok,Error ++ Error1}.
+
+analyse_all_to_file(Opts, State) ->
+    collect(State#main_state.nodes),
+    AllModules = get_all_modules(State),
+    OutDir = proplists:get_value(outdir,Opts),
+    HTML = lists:member(html,Opts),
+    Fun = fun({Module,File}) ->
+		  OutFile = outfilename(OutDir,Module,HTML),
+		  do_analyse_to_file(Module,File,OutFile,HTML,State)
+	  end,
+    {Ok,Error} = split_ok_error(pmap(Fun, AllModules),[],[]),
+    {result,Ok,Error}.
+
+get_all_modules(State) ->
+    get_all_modules(State#main_state.compiled ++ State#main_state.imported,[]).
+get_all_modules([{Module,File}|Rest],Acc) ->
+    get_all_modules(Rest,[{Module,File}|Acc]);
+get_all_modules([{Module,File,_}|Rest],Acc) ->
+    case lists:keymember(Module,1,Acc) of
+	true -> get_all_modules(Rest,Acc);
+	false -> get_all_modules(Rest,[{Module,File}|Acc])
+    end;
+get_all_modules([],Acc) ->
+    Acc.
+
+split_ok_error([{ok,R}|Result],Ok,Error) ->
+    split_ok_error(Result,[R|Ok],Error);
+split_ok_error([{error,R}|Result],Ok,Error) ->
+    split_ok_error(Result,Ok,[R|Error]);
+split_ok_error([],Ok,Error) ->
+    {Ok,Error}.
+
+do_parallel_analysis_to_file(Module, Opts, Loaded, From, State) ->
     File = case Loaded of
 	       {loaded, File0} ->
 		   [{Module,Clauses}] = 
@@ -2105,24 +2356,32 @@ do_parallel_analysis_to_file(Module, OutFile, Opts, Loaded, From, State) ->
 	       {imported, File0, _} ->
 		   File0
 	   end,
+    HTML = lists:member(html,Opts),
+    OutFile =
+	case proplists:get_value(outfile,Opts) of
+	    undefined ->
+		outfilename(proplists:get_value(outdir,Opts),Module,HTML);
+	    F ->
+		F
+	end,
+    reply(From, do_analyse_to_file(Module,File,OutFile,HTML,State)).
+
+do_analyse_to_file(Module,File,OutFile,HTML,State) ->
     case find_source(Module, File) of
 	{beam,_BeamFile} ->
-	    reply(From, {error,no_source_code_found});
+	    {error,{no_source_code_found,Module}};
 	ErlFile ->
 	    analyse_info(Module,State#main_state.imported),
-	    HTML = lists:member(html,Opts),
-	    R = do_analyse_to_file(Module,OutFile,
-				   ErlFile,HTML),
-	    reply(From, R)
+	    do_analyse_to_file1(Module,OutFile,ErlFile,HTML)
     end.
 
-%% do_analyse_to_file(Module,OutFile,ErlFile) -> {ok,OutFile} | {error,Error}
+%% do_analyse_to_file1(Module,OutFile,ErlFile) -> {ok,OutFile} | {error,Error}
 %%   Module = atom()
 %%   OutFile = ErlFile = string()
-do_analyse_to_file(Module, OutFile, ErlFile, HTML) ->
-    case file:open(ErlFile, [read]) of
+do_analyse_to_file1(Module, OutFile, ErlFile, HTML) ->
+    case file:open(ErlFile, [read,raw,read_ahead]) of
 	{ok, InFd} ->
-	    case file:open(OutFile, [write]) of
+	    case file:open(OutFile, [write,raw,delayed_write]) of
 		{ok, OutFd} ->
 		    if HTML -> 
                            Encoding = encoding(ErlFile),
@@ -2160,9 +2419,14 @@ do_analyse_to_file(Module, OutFile, ErlFile, HTML) ->
                                 "**************************************"
                                 "\n\n"]),
 
-		    print_lines(Module, InFd, OutFd, 1, HTML),
+		    Pattern = {#bump{module=Module,line='$1',_='_'},'$2'},
+		    MS = [{Pattern,[],[{{'$1','$2'}}]}],
+		    CovLines = lists:keysort(1,ets:select(?COLLECTION_TABLE, MS)),
+		    print_lines(Module, CovLines, InFd, OutFd, 1, HTML),
 		    
-		    if HTML -> io:format(OutFd,"</pre>\n</body>\n</html>\n",[]);
+		    if
+			HTML ->
+			    file:write(OutFd, "</pre>\n</body>\n</html>\n");
 		       true -> ok
 		    end,
 
@@ -2179,21 +2443,19 @@ do_analyse_to_file(Module, OutFile, ErlFile, HTML) ->
 	    {error, {file, ErlFile, Reason}}
     end.
 
-print_lines(Module, InFd, OutFd, L, HTML) ->
-    case io:get_line(InFd, '') of
+
+print_lines(Module, CovLines, InFd, OutFd, L, HTML) ->
+    case file:read_line(InFd) of
 	eof ->
 	    ignore;
- 	"%"++_=Line ->				%Comment line - not executed.
- 	    io:put_chars(OutFd, [tab(),escape_lt_and_gt(Line, HTML)]),
-	    print_lines(Module, InFd, OutFd, L+1, HTML);
-	RawLine ->
+	{ok,"%"++_=Line} ->		 %Comment line - not executed.
+	    file:write(OutFd, [tab(),escape_lt_and_gt(Line, HTML)]),
+	    print_lines(Module, CovLines, InFd, OutFd, L+1, HTML);
+	{ok,RawLine} ->
 	    Line = escape_lt_and_gt(RawLine,HTML),
-	    Pattern = {#bump{module=Module,line=L},'$1'},
-	    case ets:match(?COLLECTION_TABLE, Pattern) of
-		[] ->
-		    io:put_chars(OutFd, [tab(),Line]);
-		Ns ->
-		    N = lists:foldl(fun([Ni], Nacc) -> Nacc+Ni end, 0, Ns),
+	    case CovLines of
+	       [{L,N}|CovLines1] ->
+		    %% N = lists:foldl(fun([Ni], Nacc) -> Nacc+Ni end, 0, Ns),
 		    if
 			N=:=0, HTML=:=true ->
 			    LineNoNL = Line -- "\n",
@@ -2201,19 +2463,22 @@ print_lines(Module, InFd, OutFd, L, HTML) ->
 			    %%Str = string:right("0", 6, 32),
 			    RedLine = ["<font color=red>",Str,fill1(),
 				       LineNoNL,"</font>\n"],
-			    io:put_chars(OutFd, RedLine);
+			    file:write(OutFd, RedLine);
 			N<1000000 ->
 			    Str = string:right(integer_to_list(N), 6, 32),
-			    io:put_chars(OutFd, [Str,fill1(),Line]);
+			    file:write(OutFd, [Str,fill1(),Line]);
 			N<10000000 ->
 			    Str = integer_to_list(N),
-			    io:put_chars(OutFd, [Str,fill2(),Line]);
+			    file:write(OutFd, [Str,fill2(),Line]);
 			true ->
 			    Str = integer_to_list(N),
-			    io:put_chars(OutFd, [Str,fill3(),Line])
-		    end
-	    end,
-	    print_lines(Module, InFd, OutFd, L+1, HTML)
+			    file:write(OutFd, [Str,fill3(),Line])
+		    end,
+		    print_lines(Module, CovLines1, InFd, OutFd, L+1, HTML);
+		_ ->
+		    file:write(OutFd, [tab(),Line]),
+		    print_lines(Module, CovLines, InFd, OutFd, L+1, HTML)
+	    end
     end.
 
 tab() ->  "        |  ".
@@ -2223,7 +2488,7 @@ fill3() ->        "|  ".
 
 %%%--Export--------------------------------------------------------------
 do_export(Module, OutFile, From, State) ->
-    case file:open(OutFile,[write,binary,raw]) of
+    case file:open(OutFile,[write,binary,raw,delayed_write]) of
 	{ok,Fd} ->
 	    Reply = 
 		case Module of
@@ -2362,21 +2627,21 @@ do_reset_collection_table(Module) ->
     ets:match_delete(?COLLECTION_TABLE, {#bump{module=Module},'_'}).
 
 %% do_reset(Module) -> ok
-%% The reset is done on a per-clause basis to avoid building
+%% The reset is done on ?CHUNK_SIZE number of bumps to avoid building
 %% long lists in the case of very large modules
 do_reset(Module) ->
-    [{Module,Clauses}] = ets:lookup(?COVER_CLAUSE_TABLE, Module),
-    do_reset2(Clauses).
+    Pattern = {#bump{module=Module, _='_'}, '$1'},
+    MatchSpec = [{Pattern,[{'=/=','$1',0}],['$_']}],
+    Match = ets:select(?COVER_TABLE,MatchSpec,?CHUNK_SIZE),
+    do_reset2(Match).
 
-do_reset2([{M,F,A,C,_L}|Clauses]) ->
-    Pattern = {#bump{module=M, function=F, arity=A, clause=C}, '_'},
-    Bumps = ets:match_object(?COVER_TABLE, Pattern),
+do_reset2({Bumps,Continuation}) ->
     lists:foreach(fun({Bump,_N}) ->
 			  ets:insert(?COVER_TABLE, {Bump,0})
 		  end,
 		  Bumps),
-    do_reset2(Clauses);
-do_reset2([]) ->
+    do_reset2(ets:select(Continuation));
+do_reset2('$end_of_table') ->
     ok.    
 
 do_clear(Module) ->
@@ -2419,31 +2684,43 @@ escape_lt_and_gt1([],Acc) ->
 escape_lt_and_gt1([H|T],Acc) ->
     escape_lt_and_gt1(T,[H|Acc]).
 
-pmap(Fun, List) ->
-    pmap(Fun, List, 20).
-pmap(Fun, List, Limit) ->
-    pmap(Fun, List, [], Limit, 0, []).
-pmap(Fun, [E | Rest], Pids, Limit, Cnt, Acc) when Cnt < Limit ->
-    Collector = self(),
-    Pid = spawn_link(fun() ->
-			     ?SPAWN_DBG(pmap,E),
-			     Collector ! {res,self(),Fun(E)} 
-		     end),
-    erlang:monitor(process, Pid),
-    pmap(Fun, Rest, Pids ++ [Pid], Limit, Cnt + 1, Acc);
-pmap(Fun, List, [Pid | Pids], Limit, Cnt, Acc) ->
-    receive
-	{'DOWN', _Ref, process, X, _} when is_pid(X) ->
-	    pmap(Fun, List, [Pid | Pids], Limit, Cnt - 1, Acc);
-	{res, Pid, Res} ->
-	    pmap(Fun, List, Pids, Limit, Cnt, [Res | Acc])
-    end;
-pmap(_Fun, [], [], _Limit, 0, Acc) ->
-    lists:reverse(Acc);
-pmap(Fun, [], [], Limit, Cnt, Acc) ->
+%%%--Internal functions for parallelization------------------------------
+pmap(Fun,List) ->
+    NTot = length(List),
+    NProcs = erlang:system_info(schedulers) * 2,
+    NPerProc = (NTot div NProcs) + 1,
+    Mons = pmap_spawn(Fun,NPerProc,List,[]),
+    pmap_collect(Mons,[]).
+
+pmap_spawn(_,_,[],Mons) ->
+    Mons;
+pmap_spawn(Fun,NPerProc,List,Mons) ->
+    {L1,L2} = if length(List)>=NPerProc -> lists:split(NPerProc,List);
+		 true -> {List,[]} % last chunk
+	      end,
+    Mon =
+	spawn_monitor(
+	  fun() ->
+		  exit({pmap_done,lists:map(Fun,L1)})
+	  end),
+    pmap_spawn(Fun,NPerProc,L2,[Mon|Mons]).
+
+pmap_collect([],Acc) ->
+    lists:append(Acc);
+pmap_collect(Mons,Acc) ->
     receive
-	{'DOWN', _Ref, process, X, _} when is_pid(X) ->
-	    pmap(Fun, [], [], Limit, Cnt - 1, Acc)
+	{'DOWN', Ref, process, Pid, {pmap_done,Result}} ->
+	    pmap_collect(lists:delete({Pid,Ref},Mons),[Result|Acc]);
+	{'DOWN', Ref, process, Pid, Reason} = Down ->
+	    case lists:member({Pid,Ref},Mons) of
+		true ->
+		    %% Something went really wrong - don't hang!
+		    exit(Reason);
+		false ->
+		    %% This should be handled somewhere else
+		    self() ! Down,
+		    pmap_collect(Mons,Acc)
+	    end
     end.
 
 %%%-----------------------------------------------------------------
diff --git a/lib/tools/src/cover_web.erl b/lib/tools/src/cover_web.erl
index 69f2f3b1aa..75bb45c659 100644
--- a/lib/tools/src/cover_web.erl
+++ b/lib/tools/src/cover_web.erl
@@ -734,7 +734,7 @@ generate_filename(Prefix) ->
     filename:join(Cwd,Prefix ++ "_" ++ ts() ++ ".coverdata").
     
 ts() ->
-    {{Y,M,D},{H,Min,S}} = calendar:now_to_local_time(now()),
+    {{Y,M,D},{H,Min,S}} = calendar:now_to_local_time(erlang:timestamp()),
     io_lib:format("~4.4.0w~2.2.0w~2.2.0w-~2.2.0w~2.2.0w~2.2.0w",
 		  [Y,M,D,H,Min,S]).
 
diff --git a/lib/tools/src/eprof.erl b/lib/tools/src/eprof.erl
index bfbbefb473..28cf493a5f 100644
--- a/lib/tools/src/eprof.erl
+++ b/lib/tools/src/eprof.erl
@@ -187,7 +187,7 @@ handle_call({profile_start, Rootset, Pattern, {M,F,A}, Opts}, From, #state{fd =
     case set_process_trace(true, [Pid|Rootset], Topts) of
 	true ->
 	    ok = set_pattern_trace(true, Pattern),
-	    T0 = now(),
+	    T0 = erlang:timestamp(),
 	    ok = execute_profiling(Pid),
 	    {noreply, #state{
 		    profiling  = true,
@@ -211,7 +211,7 @@ handle_call({profile_start, Rootset, Pattern, undefined, Opts}, From, #state{ fd
 
     case set_process_trace(true, Rootset, Topts) of
 	true ->
-	    T0 = now(),
+	    T0 = erlang:timestamp(),
 	    ok = set_pattern_trace(true, Pattern),
 	    {reply, profiling, #state{
 		    profiling  = true,
@@ -485,20 +485,22 @@ string_bp_mfa([{Mfa, {Count, Time}}|Mfas], Tus, {MfaW, CountW, PercW, TimeW, TpC
 		erlang:max(TpCW,  length(Stpc))
 	    }, [[Smfa, Scount, Sperc, Stime, Stpc] | Strings]).
 
-print_bp_mfa(Mfas, {_Tn, Tus}, Fd, Opts) ->
+print_bp_mfa(Mfas, {Tn, Tus}, Fd, Opts) ->
     Fmfas = filter_mfa(sort_mfa(Mfas, proplists:get_value(sort, Opts)), proplists:get_value(filter, Opts)),
     {{MfaW, CountW, PercW, TimeW, TpCW}, Strs} = string_bp_mfa(Fmfas, Tus),
-    Ws = {
-	erlang:max(length("FUNCTION"), MfaW),
-	erlang:max(length("CALLS"), CountW),
-	erlang:max(length("  %"), PercW),
-	erlang:max(length("TIME"), TimeW),
-	erlang:max(length("uS / CALLS"), TpCW)
-    },
-    format(Fd, Ws, ["FUNCTION", "CALLS", "  %", "TIME", "uS / CALLS"]),
-    format(Fd, Ws, ["--------", "-----", "---", "----", "----------"]),
-
+    TnStr    = s(Tn),
+    TusStr   = s(Tus),
+    TuspcStr = s("~.2f", [divide(Tus,Tn)]),
+    Ws = {erlang:max(length("FUNCTION"), MfaW),
+          lists:max([length("CALLS"), CountW, length(TnStr)]),
+          erlang:max(length("      %"), PercW),
+          lists:max([length("TIME"), TimeW, length(TusStr)]),
+          lists:max([length("uS / CALLS"), TpCW, length(TuspcStr)])},
+    format(Fd, Ws, ["FUNCTION", "CALLS", "      %", "TIME", "uS / CALLS"]),
+    format(Fd, Ws, ["--------", "-----", "-------", "----", "----------"]),
     lists:foreach(fun (String) -> format(Fd, Ws, String) end, Strs),
+    format(Fd, Ws, [lists:duplicate(N,$-)||N <- tuple_to_list(Ws)]),
+    format(Fd, Ws, ["Total:", TnStr, "100.00%", TusStr, TuspcStr]),
     ok.
 
 s({M,F,A}) -> s("~w:~w/~w",[M,F,A]);
diff --git a/lib/tools/src/tools.app.src b/lib/tools/src/tools.app.src
index ec5b6f3a82..8458941761 100644
--- a/lib/tools/src/tools.app.src
+++ b/lib/tools/src/tools.app.src
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1996-2012. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -40,8 +40,8 @@
   {env, [{file_util_search_methods,[{"", ""}, {"ebin", "esrc"}, {"ebin", "src"}]}
 	]
   },
-  {runtime_dependencies, ["webtool-0.8.10","stdlib-2.0","runtime_tools-1.8.14",
-			  "kernel-3.0","inets-5.10","erts-6.0",
+  {runtime_dependencies, ["webtool-0.8.10","stdlib-2.5","runtime_tools-1.8.14",
+			  "kernel-3.0","inets-5.10","erts-7.0",
 			  "compiler-5.0"]}
  ]
 }. 
diff --git a/lib/tools/src/xref.hrl b/lib/tools/src/xref.hrl
index fa8c5c746d..5e79c477f3 100644
--- a/lib/tools/src/xref.hrl
+++ b/lib/tools/src/xref.hrl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2000-2009. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -22,6 +22,8 @@
 -define(VAR_EXPR, '$F_EXPR').
 -define(MOD_EXPR, '$M_EXPR').
 
+-define(XREF_END_LINE, (1 bsl 23)).
+
 %%% Filenames are stored as directory and basename. A lot of heap can
 %%% be saved by keeping only one (or few) copy of the directory name.
 
diff --git a/lib/tools/src/xref_compiler.erl b/lib/tools/src/xref_compiler.erl
index c4b5c04c12..c914a76bf0 100644
--- a/lib/tools/src/xref_compiler.erl
+++ b/lib/tools/src/xref_compiler.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2000-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -924,7 +924,7 @@ format_parse_error(["invalid_operator", Op], Line) ->
 format_parse_error(Error, Line) ->
     io_lib:format("Parse error~s: ~ts~n", [Line, lists:flatten(Error)]).
 
-format_line(-1) ->
+format_line(?XREF_END_LINE) ->
     " at end of string";
 format_line(0) ->
     "";
diff --git a/lib/tools/src/xref_reader.erl b/lib/tools/src/xref_reader.erl
index 142d28ebe6..723fb729cd 100644
--- a/lib/tools/src/xref_reader.erl
+++ b/lib/tools/src/xref_reader.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2000-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -77,17 +77,18 @@ forms([], S) ->
 form({attribute, Line, xref, Calls}, S) -> % experimental
     #xrefr{module = M, function = Fun,
 	   lattrs = L, xattrs = X, battrs = B} = S,
-    attr(Calls, Line, M, Fun, L, X, B, S);
+    attr(Calls, erl_anno:line(Line), M, Fun, L, X, B, S);
 form({attribute, _Line, _Attr, _Val}, S) ->
     S;
-form({function, 0, module_info, 0, _Clauses}, S) ->
+form({function, _, module_info, 0, _Clauses}, S) ->
     S;
-form({function, 0, module_info, 1, _Clauses}, S) ->
+form({function, _, module_info, 1, _Clauses}, S) ->
     S;
-form({function, Line, Name, Arity, Clauses}, S) ->
+form({function, Anno, Name, Arity, Clauses}, S) ->
     MFA0 = {S#xrefr.module, Name, Arity},
     MFA = adjust_arity(S, MFA0),
     S1 = S#xrefr{function = MFA},
+    Line = erl_anno:line(Anno),
     S2 = S1#xrefr{def_at = [{MFA,Line} | S#xrefr.def_at]},
     S3 = clauses(Clauses, S2),
     S3#xrefr{function = []}.
@@ -305,10 +306,14 @@ fun_args(apply2, [FunArg, Args]) -> {FunArg, Args};
 fun_args(1, [FunArg | Args]) -> {FunArg, Args};
 fun_args(2, [_Node, FunArg | Args]) -> {FunArg, Args}.
 
-list2term([A | As]) ->
-    {cons, 0, A, list2term(As)};
-list2term([]) ->
-    {nil, 0}.
+list2term(L) ->
+    A = erl_anno:new(0),
+    list2term(L, A).
+
+list2term([A | As], Anno) ->
+    {cons, Anno, A, list2term(As)};
+list2term([], Anno) ->
+    {nil, Anno}.
 
 term2list({cons, _Line, H, T}, L, S) ->
     term2list(T, [H | L], S);
@@ -335,10 +340,11 @@ handle_call(Locality, Module, Name, Arity, Line, S) ->
 	    handle_call(Locality, To, Line, S, false)
     end.
 
-handle_call(Locality, To0, Line, S, IsUnres) ->
+handle_call(Locality, To0, Anno, S, IsUnres) ->
     From = S#xrefr.function,
     To = adjust_arity(S, To0),
     Call = {From, To},
+    Line = erl_anno:line(Anno),
     CallAt = {Call, Line},
     S1 = if
              IsUnres ->
diff --git a/lib/tools/src/xref_scanner.erl b/lib/tools/src/xref_scanner.erl
index 990f8aa87b..4c93033d7c 100644
--- a/lib/tools/src/xref_scanner.erl
+++ b/lib/tools/src/xref_scanner.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2000-2009. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -19,6 +19,8 @@
 
 -module(xref_scanner).
 
+-include("xref.hrl").
+
 -export([scan/1]).
 
 scan(Chars) ->
@@ -77,7 +79,7 @@ lex([V={var,N,Var} | L]) ->
 lex([T | Ts]) ->
     [T | lex(Ts)];
 lex([]) ->
-    [{'$end', -1}].
+    [{'$end', erl_anno:new(?XREF_END_LINE)}].
 
 is_type('Rel')         -> true;
 is_type('App')         -> true;
diff --git a/lib/tools/test/cover_SUITE.erl b/lib/tools/test/cover_SUITE.erl
index 80807b1d38..368fa6c3d1 100644
--- a/lib/tools/test/cover_SUITE.erl
+++ b/lib/tools/test/cover_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2001-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2015. All Rights Reserved.
 %% 
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -33,6 +33,8 @@
 
 -export([do_coverage/1]).
 
+-export([distribution_performance/1]).
+
 -include_lib("test_server/include/test_server.hrl").
 
 %%----------------------------------------------------------------------
@@ -170,10 +172,15 @@ compile(Config) when is_list(Config) ->
     ?line {ok, CWD} = file:get_cwd(),
     ?line Result2 = cover:compile_directory(CWD),
     ?line SortedResult = lists:sort(Result2),
-    ?line [{error,_DFile},{ok,a},{ok,b},{ok,cc},{ok,f}] = SortedResult,
+    ?line [{error,DFile},{ok,a},{ok,b},{ok,cc},{ok,f}] = SortedResult,
     ?line [{ok,e}] = cover:compile_directory("d1"),
     ?line {error,enoent} = cover:compile_directory("d2"),
 
+    [] = cover:compile([]),
+    Result21 = cover:compile([a,b,"cc.erl",d,"f"]),
+    SortedResult21 = lists:sort(Result21),
+    [{error,DFile},{ok,a},{ok,b},{ok,cc},{ok,f}] = SortedResult21,
+
     ?line {ok,a} = cover:compile(a),
     ?line {ok,b} = compile:file(b),
     ?line code:purge(b),
@@ -213,8 +220,14 @@ compile(Config) when is_list(Config) ->
     ?line {error,non_existing} = cover:compile_beam(z),
     ?line [{ok,y}] = cover:compile_beam_directory("d"),
     ?line Result3 = lists:sort(cover:compile_beam_directory()),
-    ?line [{error,{no_abstract_code,_XBeam}},{ok,crypt},{ok,v},{ok,w}] = Result3,
+    ?line [{error,{no_abstract_code,XBeam}},{ok,crypt},{ok,v},{ok,w}] = Result3,
     ?line {error,enoent} = cover:compile_beam_directory("d2"),
+
+    [] = cover:compile_beam([]),
+    Result31 = cover:compile_beam([crypt,"v.beam",w,"x"]),
+    SortedResult31 = lists:sort(Result31),
+    [{error,{no_abstract_code,XBeam}},{ok,crypt},{ok,v},{ok,w}] = SortedResult31,
+
     ?line decompile([v,w,y]),
     ?line Files = lsfiles(),
     ?line remove(files(Files, ".beam")).
@@ -239,20 +252,22 @@ analyse(Config) when is_list(Config) ->
 
     ?line done = a:start(5),
 
-    ?line {ok, {a,{17,2}}} = cover:analyse(a, coverage, module),
-    ?line {ok, [{{a,start,1},{6,0}},
-		{{a,stop,1},{0,1}},
-		{{a,pong,1},{1,0}},
-		{{a,loop,3},{5,1}},
-		{{a,trycatch,1},{4,0}},
-		{{a,exit_kalle,0},{1,0}}]} = cover:analyse(a, coverage, function),
-    ?line {ok, [{{a,start,1,1},{6,0}},
-		{{a,stop,1,1},{0,1}},
-		{{a,pong,1,1},{1,0}},
+    {ok, {a,{17,2}}=ACovMod} = cover:analyse(a, coverage, module),
+    {ok, [{{a,exit_kalle,0},{1,0}},
+	  {{a,loop,3},{5,1}},
+	  {{a,pong,1},{1,0}},
+	  {{a,start,1},{6,0}},
+	  {{a,stop,1},{0,1}},
+	  {{a,trycatch,1},{4,0}}]=ACovFunc} =
+	cover:analyse(a, coverage, function),
+    {ok, [{{a,exit_kalle,0,1},{1,0}},
 		{{a,loop,3,1},{3,1}},
 		{{a,loop,3,2},{2,0}},
-		{{a,trycatch,1,1},{4,0}},
-		{{a,exit_kalle,0,1},{1,0}}]} = cover:analyse(a, coverage, clause),
+		{{a,pong,1,1},{1,0}},
+		{{a,start,1,1},{6,0}},
+		{{a,stop,1,1},{0,1}},
+		{{a,trycatch,1,1},{4,0}}]=ACovClause} =
+	cover:analyse(a, coverage, clause),
     ?line {ok, [{{a,9},{1,0}},
 		{{a,10},{1,0}},
 		{{a,11},{1,0}},
@@ -271,22 +286,22 @@ analyse(Config) when is_list(Config) ->
 		{{a,47},{1,0}},
 		{{a,49},{1,0}},
 		{{a,51},{1,0}},
-		{{a,55},{1,0}}]} = cover:analyse(a, coverage, line),
-
-    ?line {ok, {a,15}} = cover:analyse(a, calls, module),
-    ?line {ok, [{{a,start,1},1},
-		{{a,stop,1},0},
-		{{a,pong,1},5},
-		{{a,loop,3},6},
-		{{a,trycatch,1},2},
-		{{a,exit_kalle,0},1}]} = cover:analyse(a, calls, function),
-    ?line {ok, [{{a,start,1,1},1},
-		{{a,stop,1,1},0},
-		{{a,pong,1,1},5},
-		{{a,loop,3,1},5},
-		{{a,loop,3,2},1},
-		{{a,trycatch,1,1},2},
-		{{a,exit_kalle,0,1},1}]} = cover:analyse(a, calls, clause),
+		{{a,55},{1,0}}]=ACovLine} = cover:analyse(a, coverage, line),
+
+    {ok, {a,15}=ACallsMod} = cover:analyse(a, calls, module),
+    {ok, [{{a,exit_kalle,0},1},
+	  {{a,loop,3},6},
+	  {{a,pong,1},5},
+	  {{a,start,1},1},
+	  {{a,stop,1},0},
+	  {{a,trycatch,1},2}]=ACallsFunc} = cover:analyse(a, calls, function),
+    {ok, [{{a,exit_kalle,0,1},1},
+	  {{a,loop,3,1},5},
+	  {{a,loop,3,2},1},
+	  {{a,pong,1,1},5},
+	  {{a,start,1,1},1},
+	  {{a,stop,1,1},0},
+	  {{a,trycatch,1,1},2}]=ACallsClause} = cover:analyse(a, calls, clause),
     ?line {ok, [{{a,9},1},
 		{{a,10},1},
 		{{a,11},1},
@@ -305,27 +320,85 @@ analyse(Config) when is_list(Config) ->
 		{{a,47},1},
 		{{a,49},1},
 		{{a,51},2},
-		{{a,55},1}]} = cover:analyse(a, calls, line),
-
-    ?line {ok, [{{a,start,1},{6,0}},
-		{{a,stop,1},{0,1}},
-		{{a,pong,1},{1,0}},
-		{{a,loop,3},{5,1}},
-		{{a,trycatch,1},{4,0}},
-		{{a,exit_kalle,0},{1,0}}]} = cover:analyse(a),
-    ?line {ok, {a,{17,2}}} = cover:analyse(a, module),
-    ?line {ok, [{{a,start,1},1},
-		{{a,stop,1},0},
-		{{a,pong,1},5},
-		{{a,loop,3},6},
-		{{a,trycatch,1},2},
-		{{a,exit_kalle,0},1}]} = cover:analyse(a, calls),
+		{{a,55},1}]=ACallsLine} = cover:analyse(a, calls, line),
+
+    {ok,ACovFunc} = cover:analyse(a),
+    {ok,ACovMod} = cover:analyse(a, module),
+    {ok,ACallsFunc} = cover:analyse(a, calls),
 
     ?line {ok, "a.COVER.out"} = cover:analyse_to_file(a),
     ?line {ok, "e.COVER.out"} = cover:analyse_to_file(e),
     ?line {ok, "a.COVER.html"} = cover:analyse_to_file(a,[html]),
     ?line {ok, "e.COVER.html"} = cover:analyse_to_file(e,[html]),
 
+    %% Analyse all modules
+    Modules = cover:modules(),
+    N = length(Modules),
+
+    {result,CovFunc,[]} = cover:analyse(), % default = coverage, function
+    ACovFunc = [A || {{a,_,_},_}=A<-CovFunc],
+
+    {result,CovMod,[]} = cover:analyse(coverage,module),
+    ACovMod = lists:keyfind(a,1,CovMod),
+
+    {result,CovClause,[]} = cover:analyse(coverage,clause),
+    ACovClause = [A || {{a,_,_,_},_}=A<-CovClause],
+
+    {result,CovLine,[]} = cover:analyse(coverage,line),
+    ACovLine = [A || {{a,_},_}=A<-CovLine],
+
+    {result,CallsFunc,[]} = cover:analyse(calls,function),
+    ACallsFunc = [A || {{a,_,_},_}=A<-CallsFunc],
+
+    {result,CallsMod,[]} = cover:analyse(calls,module),
+    ACallsMod = lists:keyfind(a,1,CallsMod),
+
+    {result,CallsClause,[]} = cover:analyse(calls,clause),
+    ACallsClause = [A || {{a,_,_,_},_}=A<-CallsClause],
+
+    {result,CallsLine,[]} = cover:analyse(calls,line),
+    ACallsLine = [A || {{a,_},_}=A<-CallsLine],
+
+    {result,AllToFile,[]} = cover:analyse_to_file(),
+    N = length(AllToFile),
+    true = lists:member("a.COVER.out",AllToFile),
+    {result,AllToFileHtml,[]} = cover:analyse_to_file([html]),
+    N = length(AllToFileHtml),
+    true = lists:member("a.COVER.html",AllToFileHtml),
+
+    %% Analyse list of modules
+    %% Listing all modules so we can compare result with above result
+    %% from analysing all.
+
+    {result,CovFunc1,[]} = cover:analyse(Modules), % default = coverage, function
+    true = lists:sort(CovFunc) == lists:sort(CovFunc1),
+
+    {result,CovMod1,[]} = cover:analyse(Modules,coverage,module),
+    true = lists:sort(CovMod) == lists:sort(CovMod1),
+
+    {result,CovClause1,[]} = cover:analyse(Modules,coverage,clause),
+    true = lists:sort(CovClause) == lists:sort(CovClause1),
+    
+    {result,CovLine1,[]} = cover:analyse(Modules,coverage,line),
+    true = lists:sort(CovLine) == lists:sort(CovLine1),
+
+    {result,CallsFunc1,[]} = cover:analyse(Modules,calls,function),
+    true = lists:sort(CallsFunc1) == lists:sort(CallsFunc1),
+
+    {result,CallsMod1,[]} = cover:analyse(Modules,calls,module),
+    true = lists:sort(CallsMod) == lists:sort(CallsMod1),
+
+    {result,CallsClause1,[]} = cover:analyse(Modules,calls,clause),
+    true = lists:sort(CallsClause) == lists:sort(CallsClause1),
+
+    {result,CallsLine1,[]} = cover:analyse(Modules,calls,line),
+    true = lists:sort(CallsLine) == lists:sort(CallsLine1),
+
+    {result,AllToFile1,[]} = cover:analyse_to_file(Modules),
+    true = lists:sort(AllToFile) == lists:sort(AllToFile1),
+    {result,AllToFileHtml1,[]} = cover:analyse_to_file(Modules,[html]),
+    true = lists:sort(AllToFileHtml) == lists:sort(AllToFileHtml1),
+
     %% analyse_to_file of file which is compiled from beam
     ?line {ok,f} = compile:file(f,[debug_info]),
     ?line code:purge(f),
@@ -348,14 +421,17 @@ analyse(Config) when is_list(Config) ->
     {module,z} = code:load_file(z),
     {ok,z} = cover:compile_beam(z),
     ok = file:delete("z.erl"),
-    {error,no_source_code_found} = cover:analyse_to_file(z),
+    {error,{no_source_code_found,z}} = cover:analyse_to_file(z),
+    {result,[],[{no_source_code_found,z}]} = cover:analyse_to_file([z]),
     code:purge(z),
     code:delete(z),
 
     ?line {error,{not_cover_compiled,b}} = cover:analyse(b),
     ?line {error,{not_cover_compiled,g}} = cover:analyse(g),
+    {result,[],[{not_cover_compiled,b}]} = cover:analyse([b]),
     ?line {error,{not_cover_compiled,b}} = cover:analyse_to_file(b),
-    ?line {error,{not_cover_compiled,g}} = cover:analyse_to_file(g).
+    {error,{not_cover_compiled,g}} = cover:analyse_to_file(g),
+    {result,[],[{not_cover_compiled,g}]} = cover:analyse_to_file([g]).
 
 misc(suite) -> [];
 misc(Config) when is_list(Config) ->
@@ -680,6 +756,119 @@ stop_node_after_disconnect(Config) ->
     ?t:stop_node(N1),
     ok.
 
+distribution_performance(Config) ->
+    PrivDir = ?config(priv_dir,Config),
+    Dir = filename:join(PrivDir,"distribution_performance"),
+    AllFiles = filename:join(Dir,"*"),
+    ok = filelib:ensure_dir(AllFiles),
+    code:add_patha(Dir),
+    M = 9,   % Generate M modules
+    F = 210, % with F functions
+    C = 10,  % and each function of C clauses
+    Mods = generate_modules(M,F,C,Dir),
+
+%    ?t:break(""),
+
+    NodeName = cover_SUITE_distribution_performance,
+    {ok,N1} = ?t:start_node(NodeName,peer,[{start_cover,false}]),
+    %% CFun = fun() ->
+    %% 		   [{ok,_} = cover:compile_beam(Mod) || Mod <- Mods]
+    %% 	   end,
+    CFun = fun() -> cover:compile_beam(Mods) end,
+    {CT,CA} = timer:tc(CFun),
+%    erlang:display(CA),
+    erlang:display({compile,CT}),
+
+    {SNT,_} = timer:tc(fun() -> {ok,[N1]} = cover:start(nodes()) end),
+    erlang:display({start_node,SNT}),
+
+    [1 = rpc:call(N1,Mod,f1,[1]) || Mod <- Mods],
+
+%    Fun = fun() -> [cover:analyse(Mod,calls,function) || Mod<-Mods] end,
+%    Fun = fun() -> analyse_all(Mods,calls,function) end,
+%    Fun = fun() -> cover:analyse('_',calls,function) end,
+    Fun = fun() -> cover:analyse(Mods,calls,function) end,
+
+%    Fun = fun() -> [begin cover:analyse_to_file(Mod,[html]) end || Mod<-Mods] end,
+%    Fun = fun() -> analyse_all_to_file(Mods,[html]) end,
+%    Fun = fun() -> cover:analyse_to_file(Mods,[html]) end,
+%    Fun = fun() -> cover:analyse_to_file([html]) end,
+
+%    Fun = fun() -> cover:reset() end,
+
+    {AT,A} = timer:tc(Fun),
+    erlang:display({analyse,AT}),
+%    erlang:display(lists:sort([X || X={_MFA,N} <- lists:append([L || {ok,L}<-A]), N=/=0])),
+
+    %% fprof:apply(Fun, [],[{procs,[whereis(cover_server)]}]),
+    %% fprof:profile(),
+    %% fprof:analyse(dest,[]),
+
+    {SNT2,_} = timer:tc(fun() -> ?t:stop_node(N1) end),
+    erlang:display({stop_node,SNT2}),
+
+    code:del_path(Dir),
+    Files = filelib:wildcard(AllFiles),
+    [ok = file:delete(File) || File <- Files],
+    ok = file:del_dir(Dir),
+    ok.
+
+%% Run analysis in parallel
+analyse_all(Mods,Analysis,Level) ->
+    Pids = [begin
+		Pid = spawn(fun() ->
+				    {ok,A} = cover:analyse(Mod,Analysis,Level),
+				    exit(A)
+			    end),
+                erlang:monitor(process,Pid),
+                Pid
+            end || Mod <- Mods],
+    get_downs(Pids,[]).
+
+analyse_all_to_file(Mods,Opts) ->
+    Pids = [begin
+		Pid = cover:async_analyse_to_file(Mod,Opts),
+		erlang:monitor(process,Pid),
+		Pid
+	    end || Mod <- Mods],
+    get_downs(Pids,[]).
+
+get_downs([],Acc) ->
+    Acc;
+get_downs(Pids,Acc) ->
+    receive
+	{'DOWN', _Ref, _Type, Pid, A} -> 
+	    get_downs(lists:delete(Pid,Pids),[A|Acc])
+    end.
+
+generate_modules(0,_,_,_) ->
+    [];
+generate_modules(M,F,C,Dir) ->
+    ModStr = "m" ++ integer_to_list(M),
+    Mod = list_to_atom(ModStr),
+    Src = ["-module(",ModStr,").\n"
+	   "-compile(export_all).\n" |
+	   generate_functions(F,C)],
+    Erl = filename:join(Dir,ModStr++".erl"),
+    ok = file:write_file(Erl,Src),
+    {ok,Mod} = compile:file(Erl,[{outdir,Dir},debug_info,report]),
+    [Mod | generate_modules(M-1,F,C,Dir)].
+
+generate_functions(0,_) ->
+    [];
+generate_functions(F,C) ->
+    Func = "f" ++ integer_to_list(F),
+    [generate_clauses(C,Func) | generate_functions(F-1,C)].
+
+generate_clauses(0,_) ->
+    [];
+generate_clauses(C,Func) ->
+    CStr = integer_to_list(C),
+    Sep = if C==1 -> "."; true -> ";" end,
+    [Func,"(",CStr,") -> ",CStr,Sep,"\n" |
+     generate_clauses(C-1,Func)].
+
+
 export_import(suite) -> [];
 export_import(Config) when is_list(Config) ->
     ?line DataDir = ?config(data_dir, Config),
@@ -788,10 +977,11 @@ otp_5031(Config) when is_list(Config) ->
 
     Dog = ?t:timetrap(?t:seconds(10)),
 
-    ?line {ok,N1} = ?t:start_node(cover_SUITE_distribution1,slave,[]),
+    {ok,N1} = ?t:start_node(cover_SUITE_otp_5031,slave,[]),
     ?line {ok,[N1]} = cover:start(N1),
     ?line {error,not_main_node} = rpc:call(N1,cover,modules,[]),
     ?line cover:stop(),
+    ?t:stop_node(N1),
     
     ?t:timetrap_cancel(Dog),
     ok.
@@ -1005,6 +1195,7 @@ otp_7095(Config) when is_list(Config) ->
 
     ok.
 
+
 otp_8270(doc) ->
     ["OTP-8270. Bug."];
 otp_8270(suite) -> [];
@@ -1020,7 +1211,7 @@ otp_8270(Config) when is_list(Config) ->
     ?line {ok,N3} = ?t:start_node(cover_n3,slave,As),
     
     timer:sleep(500),
-    cover:start(nodes()),
+    {ok,[_,_,_]} = cover:start(nodes()),
 
     Test = <<
      "-module(m).\n"
@@ -1058,6 +1249,7 @@ otp_8270(Config) when is_list(Config) ->
     ?line {N2,true} = {N2,is_list(N2_info)},
     ?line {N3,true} = {N3,is_list(N3_info)},
 
+    exit(Pid1,kill),
     ?line ?t:stop_node(N1),
     ?line ?t:stop_node(N2),
     ?line ?t:stop_node(N3),
@@ -1572,7 +1764,9 @@ is_unloaded(What) ->
     end.
 
 check_f_calls(F1,F2) ->
-    {ok,[{{f,f1,0},F1},{{f,f2,0},F2}|_]} = cover:analyse(f,calls,function).
+    {ok,A} = cover:analyse(f,calls,function),
+    {_,F1} = lists:keyfind({f,f1,0},1,A),
+    {_,F2} = lists:keyfind({f,f2,0},1,A).
 
 cover_which_nodes(Expected) ->
     case cover:which_nodes() of
diff --git a/lib/tools/test/lcnt_SUITE.erl b/lib/tools/test/lcnt_SUITE.erl
index 010dffe138..de68486b1b 100644
--- a/lib/tools/test/lcnt_SUITE.erl
+++ b/lib/tools/test/lcnt_SUITE.erl
@@ -97,12 +97,12 @@ t_conflicts_file([File|Files]) ->
     {ok, _} = lcnt:start(),
     ok = lcnt:load(File),
     ok = lcnt:conflicts(),
-    THs   = [-1, 0, 100, 1000],
+    THs   = [-1, 5],
     Print = [name , id , type , entry , tries , colls , ratio , time , duration],
     Opts  = [
 	[{sort, Sort}, {reverse, Rev}, {max_locks, ML}, {combine, Combine}, {thresholds, [TH]}, {print, [Print]}] ||
-	    Sort    <- [name , id , type , tries , colls , ratio , time , entry],
-	    ML      <- [none, 1 , 32,  4096],
+	    Sort    <- [name , type , tries , colls , ratio , time],
+	    ML      <- [none, 32],
 	    Combine <- [true, false],
 	    TH      <- [{tries, Tries} || Tries <- THs] ++ [{colls, Colls} || Colls <- THs] ++ [{time, Time} || Time <- THs],
 	    Rev     <- [true, false]
@@ -131,12 +131,12 @@ t_locations_file([File|Files]) ->
     {ok, _} = lcnt:start(),
     ok = lcnt:load(File),
     ok = lcnt:locations(),
-    THs   = [-1, 0, 100, 1000],
+    THs   = [-1, 0, 100],
     Print = [name , id , type , entry , tries , colls , ratio , time , duration],
     Opts  = [
 	[{full_id, Id}, {sort, Sort}, {max_locks, ML}, {combine, Combine}, {thresholds, [TH]}, {print, Print}] ||
 	    Sort    <- [name , id , type , tries , colls , ratio , time , entry],
-	    ML      <- [none, 1 , 64],
+	    ML      <- [none, 64],
 	    Combine <- [true, false],
 	    TH      <- [{tries, Tries} || Tries <- THs] ++ [{colls, Colls} || Colls <- THs] ++ [{time, Time} || Time <- THs],
 	    Id      <- [true, false]
diff --git a/lib/tools/vsn.mk b/lib/tools/vsn.mk
index 3b3202d38b..68c3f6e29c 100644
--- a/lib/tools/vsn.mk
+++ b/lib/tools/vsn.mk
@@ -1 +1 @@
-TOOLS_VSN = 2.7.2
+TOOLS_VSN = 2.8
diff --git a/lib/typer/src/typer.erl b/lib/typer/src/typer.erl
index 572bf24ca4..f8070e04c1 100644
--- a/lib/typer/src/typer.erl
+++ b/lib/typer/src/typer.erl
@@ -2,7 +2,7 @@
 %%-----------------------------------------------------------------------
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2006-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2006-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -405,7 +405,7 @@ get_type({{M, F, A} = MFA, Range, Arg}, CodeServer, Records) ->
   case dialyzer_codeserver:lookup_mfa_contract(MFA, CodeServer) of
     error ->
       {{F, A}, {Range, Arg}};
-    {ok, {_FileLine, Contract}} ->
+    {ok, {_FileLine, Contract, _Xtra}} ->
       Sig = erl_types:t_fun(Arg, Range),
       case dialyzer_contracts:check_contract(Contract, Sig) of
 	ok -> {{F, A}, {contract, Contract}};
@@ -931,7 +931,9 @@ analyze_one_function({Var, FunBody} = Function, Acc) ->
   A = cerl:fname_arity(Var),
   TmpDialyzerObj = {{Acc#tmpAcc.module, F, A}, Function},
   NewDialyzerObj = Acc#tmpAcc.dialyzerObj ++ [TmpDialyzerObj],  
-  [_, LineNo, {file, FileName}] = cerl:get_ann(FunBody),
+  Anno = cerl:get_ann(FunBody),
+  LineNo = get_line(Anno),
+  FileName = get_file(Anno),
   BaseName = filename:basename(FileName),
   FuncInfo = {LineNo, F, A},
   OriginalName = Acc#tmpAcc.file,
@@ -951,6 +953,14 @@ analyze_one_function({Var, FunBody} = Function, Acc) ->
 	     incFuncAcc = IncFuncAcc,
 	     dialyzerObj = NewDialyzerObj}.
 
+get_line([Line|_]) when is_integer(Line) -> Line;
+get_line([_|T]) -> get_line(T);
+get_line([]) -> none.
+
+get_file([{file,File}|_]) -> File;
+get_file([_|T]) -> get_file(T);
+get_file([]) -> "no_file". % should not happen
+
 -spec get_dialyzer_plt(analysis()) -> plt().
 
 get_dialyzer_plt(#analysis{plt = PltFile0}) ->
diff --git a/lib/typer/vsn.mk b/lib/typer/vsn.mk
index ce658e257b..74c0ccfc59 100644
--- a/lib/typer/vsn.mk
+++ b/lib/typer/vsn.mk
@@ -1 +1 @@
-TYPER_VSN = 0.9.8
+TYPER_VSN = 0.9.9
diff --git a/lib/webtool/doc/src/Makefile b/lib/webtool/doc/src/Makefile
index 32269e9424..08292fcca8 100644
--- a/lib/webtool/doc/src/Makefile
+++ b/lib/webtool/doc/src/Makefile
@@ -25,6 +25,10 @@ include ../../vsn.mk
 VSN=$(WEBTOOL_VSN)
 APPLICATION=webtool
 
+DOC_EXTRA_FRONT_PAGE_INFO=Important note: \
+The Webtool application is obsolete and will be removed \
+in the next major OTP release
+
 # ----------------------------------------------------
 # Release directory specification
 # ----------------------------------------------------
diff --git a/lib/webtool/vsn.mk b/lib/webtool/vsn.mk
index a79c273d9f..4a701ae6e0 100644
--- a/lib/webtool/vsn.mk
+++ b/lib/webtool/vsn.mk
@@ -1 +1 @@
-WEBTOOL_VSN=0.8.10
+WEBTOOL_VSN=0.9
diff --git a/lib/wx/api_gen/wx_gen_cpp.erl b/lib/wx/api_gen/wx_gen_cpp.erl
index 107d064f4a..8cbc448563 100644
--- a/lib/wx/api_gen/wx_gen_cpp.erl
+++ b/lib/wx/api_gen/wx_gen_cpp.erl
@@ -197,8 +197,8 @@ gen_funcs(Defs) ->
     w("       if(recurse_level > 1 && refd->type != 4) {~n"),
     w("          delayed_delete->Append(Ecmd.Save());~n"),
     w("       } else {~n"),
-    w("          ((WxeApp *) wxTheApp)->clearPtr(This);~n"),
-    w("          delete_object(This, refd); }~n"),
+    w("          delete_object(This, refd);~n"),
+    w("          ((WxeApp *) wxTheApp)->clearPtr(This);}~n"),
     w("  } } break;~n"),
     w("  case WXE_REGISTER_OBJECT: {~n"
       "     registerPid(bp, Ecmd.caller, memenv);~n"
@@ -207,7 +207,7 @@ gen_funcs(Defs) ->
       " }~n"),
     w(" case WXE_BIN_INCR:~n   driver_binary_inc_refc(Ecmd.bin[0]->bin);~n   break;~n",[]),
     w(" case WXE_BIN_DECR:~n   driver_binary_dec_refc(Ecmd.bin[0]->bin);~n   break;~n",[]),
-    w(" case WXE_INIT_OPENGL:~n  wxe_initOpenGL(rt, bp);~n   break;~n",[]),
+    w(" case WXE_INIT_OPENGL:~n  wxe_initOpenGL(&rt, bp);~n   break;~n",[]),
 
     Res = [gen_class(Class) || Class <- Defs],
 
@@ -910,11 +910,24 @@ is_dc(Class) ->
     Parents = wx_gen_erl:parents(Class),
     lists:member("wxDC", Parents) orelse lists:member("wxGraphicsContext", Parents).
 
-build_return_vals(Type,Ps) ->
+build_return_vals(Type,Ps0) ->
+    Ps = [P || P = #param{in=In} <- Ps0, In =/= true],
     HaveType = case Type of  void -> 0; _ -> 1 end,
-    NoOut = lists:sum([1 || #param{in=In} <- Ps, In =/= true]) + HaveType,
+    NoOut = length(Ps) + HaveType,
     OutTupSz = if NoOut > 1 -> NoOut; true -> 0 end,
 
+    CountFloats = fun(#param{type=#type{base=Float, single=true}}, Acc)
+			when Float =:= float; Float =:= double ->
+			  Acc + 1;
+		     (_, Acc) ->
+			  Acc
+		  end,
+    NofFloats = lists:foldl(CountFloats, 1, Ps),
+    case NofFloats > 1 of
+	true -> %%io:format("Floats ~p:~p ~p ~n",[get(current_class),get(current_func), NofFloats]);
+	    w(" rt.ensureFloatCount(~p);~n",[NofFloats]);
+	false -> ignore
+    end,
     build_ret_types(Type,Ps),
     if
 	OutTupSz > 1 -> w(" rt.addTupleCount(~p);~n",[OutTupSz]);
@@ -923,12 +936,11 @@ build_return_vals(Type,Ps) ->
     Ps.
 
 build_ret_types(void,Ps) ->
-    Calc = fun(#param{name=N,in=False,type=T}, Free) when False =/= true ->
-		   case build_ret(N, {arg, False}, T) of
+    Calc = fun(#param{name=N,in=In,type=T}, Free) ->
+		   case build_ret(N, {arg, In}, T) of
 		       ok -> Free;
 		       Other -> [Other|Free]
-		   end;
-	      (_, Free) -> Free
+		   end
 	   end,
     lists:foldl(Calc, [], Ps);
 build_ret_types(Type,Ps) ->
@@ -936,12 +948,11 @@ build_ret_types(Type,Ps) ->
 	       ok -> [];
 	       FreeStr -> [FreeStr]
 	   end,
-    Calc = fun(#param{name=N,in=False,type=T}, FreeAcc) when False =/= true ->
-		   case build_ret(N, {arg, False}, T) of
+    Calc = fun(#param{name=N,in=In,type=T}, FreeAcc) ->
+		   case build_ret(N, {arg, In}, T) of
 		       ok -> FreeAcc;
 		       FreeMe -> [FreeMe|FreeAcc]
-		   end;
-	      (_, FreeAcc) -> FreeAcc
+		   end
 	   end,
     lists:foldl(Calc, Free, Ps).
 
@@ -975,6 +986,13 @@ build_ret(Name = "ev->m_scanCode",_,#type{base=bool,single=true,by_val=true}) ->
     w(" rt.addBool(~s);~n",[Name]),
     w("#else~n rt.addBool(false);~n",[]),
     w("#endif~n",[]);
+build_ret(Name = "ev->m_metaDown",_,#type{base=bool,single=true,by_val=true}) ->
+    %% Hardcoded workaround for MAC on 2.9 and later
+    w("#if wxCHECK_VERSION(2,9,0) && defined(_MACOSX)~n", []),
+    w(" rt.addBool(ev->m_rawControlDown);~n",[]),
+    w("#else~n rt.addBool(~s);~n",[Name]),
+    w("#endif~n",[]);
+
 build_ret(Name,_,#type{base=bool,single=true,by_val=true}) ->
     w(" rt.addBool(~s);~n",[Name]);
 build_ret(Name,{arg, both},#type{base=int,single=true,mod=M}) ->
@@ -1009,7 +1027,6 @@ build_ret(Name,_,#type{name="wxArrayTreeItemIds"}) ->
     w(" rt.endList(~s.GetCount());~n",[Name]);
 
 build_ret(Name,_,#type{base=float,single=true}) ->
-%%    w(" double Temp~s = ~s;~n", [Name,Name]),
     w(" rt.addFloat(~s);~n",[Name]);
 build_ret(Name,_,#type{base=double,single=true}) ->
     w(" rt.addFloat(~s);~n",[Name]);
diff --git a/lib/wx/api_gen/wxapi.conf b/lib/wx/api_gen/wxapi.conf
index 2e961cce98..bbf9add59e 100644
--- a/lib/wx/api_gen/wxapi.conf
+++ b/lib/wx/api_gen/wxapi.conf
@@ -32,7 +32,10 @@
 	      wxALWAYS_NATIVE_DOUBLE_BUFFER,
 	      wxGAUGE_EMULATE_INDETERMINATE_MODE,
 	      wxTR_DEFAULT_STYLE,
-	      wxSL_LABELS
+	      wxSL_LABELS,
+	      wxCURSOR_DEFAULT,
+	      wxCURSOR_ARROWWAIT,
+	      wxCURSOR_MAX
 	     ]}.
 
 {gvars, 
@@ -1355,7 +1358,8 @@
     wxEVT_SCROLL_THUMBRELEASE,wxEVT_SCROLL_CHANGED]}],
  ['GetOrientation','GetPosition']}.
 {class, wxScrollWinEvent,wxEvent, 
- [{event,
+ [{acc, [{m_commandInt, "GetPosition()"}, {m_extraLong, "GetOrientation()"}]},
+  {event,
    [wxEVT_SCROLLWIN_TOP,wxEVT_SCROLLWIN_BOTTOM,wxEVT_SCROLLWIN_LINEUP,
     wxEVT_SCROLLWIN_LINEDOWN,wxEVT_SCROLLWIN_PAGEUP,
     wxEVT_SCROLLWIN_PAGEDOWN,wxEVT_SCROLLWIN_THUMBTRACK,
@@ -1380,7 +1384,9 @@
   'ShiftDown'
  ]}.
 
-{class, wxSetCursorEvent, wxEvent, [{event,[wxEVT_SET_CURSOR]}],
+{class, wxSetCursorEvent, wxEvent,
+ [{acc, [{m_x, "GetX()"}, {m_y, "GetY()"}, {m_cursor, "GetCursor()"}]},
+  {event,[wxEVT_SET_CURSOR]}],
  ['GetCursor','GetX','GetY','HasCursor','SetCursor']}.
 
 {class, wxKeyEvent, wxEvent, 
@@ -1395,7 +1401,7 @@
 
 {class, wxSizeEvent, wxEvent, [{event,[wxEVT_SIZE]}],
  ['GetSize']}.
-{class, wxMoveEvent, wxEvent, [{event,[wxEVT_MOVE]}],
+{class, wxMoveEvent, wxEvent, [{acc, [{m_pos, "GetPosition()"}, {m_rect, "GetRect()"}]}, {event,[wxEVT_MOVE]}],
  ['GetPosition']}.
 {class, wxPaintEvent, wxEvent, [{event,[wxEVT_PAINT]}],[]}.
 %%{class, wxNcPaintEvent, wxEvent, [{event,[wxEVT_NC_PAINT]}],[]}.
@@ -1404,28 +1410,28 @@
   {event, [wxEVT_ERASE_BACKGROUND]}],
  ['GetDC']}.
 {class, wxFocusEvent, wxEvent,
- [{event,[wxEVT_SET_FOCUS,wxEVT_KILL_FOCUS]}],
+ [{acc, [{m_win, "GetWindow()"}]},
+  {event,[wxEVT_SET_FOCUS,wxEVT_KILL_FOCUS]}],
  ['GetWindow']}.
 {class,wxChildFocusEvent,wxCommandEvent,
  [{event,[wxEVT_CHILD_FOCUS]}],
  ['GetWindow']}.
 
-%% {class, wxActivateEvent, wxEvent, [{event, 
-%%   [wxEVT_ACTIVATE,wxEVT_ACTIVATE_APP,wxEVT_HIBERNATE]}],[]}.
-
-%%{class, wxInitDialogEvent, wxEvent, [{event, []}],[]}.
-
-{class, wxMenuEvent, wxEvent, 
- [{event, [wxEVT_MENU_OPEN,wxEVT_MENU_CLOSE,wxEVT_MENU_HIGHLIGHT]}],
+{class, wxMenuEvent, wxEvent,
+ [{acc, [{m_menuId, "GetMenuId()"}, {m_menu, "GetMenu()"}]},
+  {event, [wxEVT_MENU_OPEN,wxEVT_MENU_CLOSE,wxEVT_MENU_HIGHLIGHT]}],
  ['GetMenu','GetMenuId','IsPopup']}.
 {class, wxCloseEvent, wxEvent, 
  [{event, [wxEVT_CLOSE_WINDOW,wxEVT_END_SESSION,wxEVT_QUERY_END_SESSION]}],
  ['CanVeto','GetLoggingOff','SetCanVeto','SetLoggingOff','Veto']}.
-{class, wxShowEvent, wxEvent, [{event,[wxEVT_SHOW]}],['SetShow','GetShow']}.
-{class, wxIconizeEvent, wxEvent, [{event,[wxEVT_ICONIZE]}],['Iconized']}.
+{class, wxShowEvent, wxEvent, [{acc, [{m_show, "GetShow()"}]},{event,[wxEVT_SHOW]}],['SetShow','GetShow']}.
+{class, wxIconizeEvent, wxEvent, [{acc, [{m_iconized, "Iconized()"}]},{event,[wxEVT_ICONIZE]}],['Iconized']}.
 {class, wxMaximizeEvent, wxEvent, [{event,[wxEVT_MAXIMIZE]}],[]}.
-{class, wxJoystickEvent,  wxEvent, 
- [{event,[wxEVT_JOY_BUTTON_DOWN,wxEVT_JOY_BUTTON_UP,
+{class, wxJoystickEvent,  wxEvent,
+ [{acc, [{m_pos, "GetPosition()"},{m_zPosition, "GetZPosition()"},
+	 {m_buttonChange, "GetButtonChange()"}, {m_buttonState, "GetButtonState()"},
+	 {m_joyStick, "GetJoystick()"}]},
+  {event,[wxEVT_JOY_BUTTON_DOWN,wxEVT_JOY_BUTTON_UP,
 	  wxEVT_JOY_MOVE,wxEVT_JOY_ZMOVE]}],
  ['ButtonDown','ButtonIsDown','ButtonUp','GetButtonChange','GetButtonState',
   'GetJoystick','GetPosition','GetZPosition','IsButton','IsMove','IsZMove']}.
@@ -1463,7 +1469,8 @@
   'SetOrigin',
   'SetPosition']}.
 
-{class, wxContextMenuEvent, wxCommandEvent, [{event,[wxEVT_CONTEXT_MENU]}],
+{class, wxContextMenuEvent, wxCommandEvent,
+ [{acc, [{m_pos, "GetPosition()"}]}, {event,[wxEVT_CONTEXT_MENU]}],
  ['GetPosition','SetPosition']}.
 {enum, wxIdleMode, "wxIDLE_"}.
 {class, wxIdleEvent, wxEvent, [{event,[wxEVT_IDLE]}],
@@ -1522,7 +1529,8 @@
  ]}.
 
 {class, wxCalendarEvent, wxDateEvent, 
- [{event,[wxEVT_CALENDAR_SEL_CHANGED, wxEVT_CALENDAR_DAY_CHANGED,     
+ [{acc, [{m_date, "GetDate()"}, {m_wday, "GetWeekDay()"}]},
+  {event,[wxEVT_CALENDAR_SEL_CHANGED, wxEVT_CALENDAR_DAY_CHANGED,
 	  wxEVT_CALENDAR_MONTH_CHANGED, wxEVT_CALENDAR_YEAR_CHANGED,
 	  wxEVT_CALENDAR_DOUBLECLICKED, wxEVT_CALENDAR_WEEKDAY_CLICKED]}],
  [
@@ -1727,8 +1735,9 @@
  ['GetKeyCode','GetItem','GetKeyEvent','GetLabel','GetOldItem','GetPoint',
   'IsEditCancelled','SetToolTip']}.
 
-{class, wxNotebookEvent, wxNotifyEvent, 
- [{event, [wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED,
+{class, wxNotebookEvent, wxNotifyEvent,
+ [{acc, [{m_nSel, "GetSelection()"}, {m_nOldSel, "GetOldSelection()"}]},
+  {event, [wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED,
 	   wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING]}],
  ['GetOldSelection','GetSelection','SetOldSelection','SetSelection']}.
 
diff --git a/lib/wx/c_src/gen/wxe_events.cpp b/lib/wx/c_src/gen/wxe_events.cpp
index 255b36c2fa..e042b4d890 100644
--- a/lib/wx/c_src/gen/wxe_events.cpp
+++ b/lib/wx/c_src/gen/wxe_events.cpp
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2008-2014. All Rights Reserved.
+ * Copyright Ericsson AB 2008-2015. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -375,10 +375,13 @@ case 165: {// wxScrollEvent or wxSpinEvent
   break;
 }
 case 166: {// wxScrollWinEvent
+ wxScrollWinEvent * ev = (wxScrollWinEvent *) event;
     evClass = (char*)"wxScrollWinEvent";
     rt.addAtom((char*)"wxScrollWin");
     rt.addAtom(Etype->eName);
-    rt.addTupleCount(2);
+ rt.addInt(ev->GetPosition());
+ rt.addInt(ev->GetOrientation());
+    rt.addTupleCount(4);
   break;
 }
 case 167: {// wxMouseEvent
@@ -394,7 +397,11 @@ case 167: {// wxMouseEvent
  rt.addBool(ev->m_controlDown);
  rt.addBool(ev->m_shiftDown);
  rt.addBool(ev->m_altDown);
+#if wxCHECK_VERSION(2,9,0) && defined(_MACOSX)
+ rt.addBool(ev->m_rawControlDown);
+#else
  rt.addBool(ev->m_metaDown);
+#endif
  rt.addInt(ev->m_wheelRotation);
  rt.addInt(ev->m_wheelDelta);
  rt.addInt(ev->m_linesPerAction);
@@ -402,10 +409,16 @@ case 167: {// wxMouseEvent
   break;
 }
 case 168: {// wxSetCursorEvent
+ wxSetCursorEvent * ev = (wxSetCursorEvent *) event;
+ wxCursor * GetCursor = new wxCursor(ev->GetCursor());
+ app->newPtr((void *) GetCursor,3, memenv);
     evClass = (char*)"wxSetCursorEvent";
     rt.addAtom((char*)"wxSetCursor");
     rt.addAtom(Etype->eName);
-    rt.addTupleCount(2);
+ rt.addInt(ev->GetX());
+ rt.addInt(ev->GetY());
+ rt.addRef(getRef((void *)GetCursor,memenv), "wxCursor");
+    rt.addTupleCount(5);
   break;
 }
 case 169: {// wxKeyEvent
@@ -419,7 +432,11 @@ case 169: {// wxKeyEvent
  rt.addBool(ev->m_controlDown);
  rt.addBool(ev->m_shiftDown);
  rt.addBool(ev->m_altDown);
+#if wxCHECK_VERSION(2,9,0) && defined(_MACOSX)
+ rt.addBool(ev->m_rawControlDown);
+#else
  rt.addBool(ev->m_metaDown);
+#endif
 #if !wxCHECK_VERSION(2,9,0)
  rt.addBool(ev->m_scanCode);
 #else
@@ -442,10 +459,13 @@ case 170: {// wxSizeEvent
   break;
 }
 case 171: {// wxMoveEvent
+ wxMoveEvent * ev = (wxMoveEvent *) event;
     evClass = (char*)"wxMoveEvent";
     rt.addAtom((char*)"wxMove");
     rt.addAtom(Etype->eName);
-    rt.addTupleCount(2);
+ rt.add(ev->GetPosition());
+ rt.add(ev->GetRect());
+    rt.addTupleCount(4);
   break;
 }
 case 172: {// wxPaintEvent
@@ -466,10 +486,13 @@ case 173: {// wxEraseEvent
   break;
 }
 case 174: {// wxFocusEvent
+ wxFocusEvent * ev = (wxFocusEvent *) event;
+ wxWindow * GetWindow = ev->GetWindow();
     evClass = (char*)"wxFocusEvent";
     rt.addAtom((char*)"wxFocus");
     rt.addAtom(Etype->eName);
-    rt.addTupleCount(2);
+ rt.addRef(getRef((void *)GetWindow,memenv), "wxWindow");
+    rt.addTupleCount(3);
   break;
 }
 case 175: {// wxChildFocusEvent
@@ -480,10 +503,14 @@ case 175: {// wxChildFocusEvent
   break;
 }
 case 176: {// wxMenuEvent
+ wxMenuEvent * ev = (wxMenuEvent *) event;
+ wxMenu * GetMenu = ev->GetMenu();
     evClass = (char*)"wxMenuEvent";
     rt.addAtom((char*)"wxMenu");
     rt.addAtom(Etype->eName);
-    rt.addTupleCount(2);
+ rt.addInt(ev->GetMenuId());
+ rt.addRef(getRef((void *)GetMenu,memenv), "wxMenu");
+    rt.addTupleCount(4);
   break;
 }
 case 177: {// wxCloseEvent
@@ -494,17 +521,21 @@ case 177: {// wxCloseEvent
   break;
 }
 case 178: {// wxShowEvent
+ wxShowEvent * ev = (wxShowEvent *) event;
     evClass = (char*)"wxShowEvent";
     rt.addAtom((char*)"wxShow");
     rt.addAtom(Etype->eName);
-    rt.addTupleCount(2);
+ rt.addBool(ev->GetShow());
+    rt.addTupleCount(3);
   break;
 }
 case 179: {// wxIconizeEvent
+ wxIconizeEvent * ev = (wxIconizeEvent *) event;
     evClass = (char*)"wxIconizeEvent";
     rt.addAtom((char*)"wxIconize");
     rt.addAtom(Etype->eName);
-    rt.addTupleCount(2);
+ rt.addBool(ev->Iconized());
+    rt.addTupleCount(3);
   break;
 }
 case 180: {// wxMaximizeEvent
@@ -515,10 +546,16 @@ case 180: {// wxMaximizeEvent
   break;
 }
 case 181: {// wxJoystickEvent
+ wxJoystickEvent * ev = (wxJoystickEvent *) event;
     evClass = (char*)"wxJoystickEvent";
     rt.addAtom((char*)"wxJoystick");
     rt.addAtom(Etype->eName);
-    rt.addTupleCount(2);
+ rt.add(ev->GetPosition());
+ rt.addInt(ev->GetZPosition());
+ rt.addInt(ev->GetButtonChange());
+ rt.addInt(ev->GetButtonState());
+ rt.addInt(ev->GetJoystick());
+    rt.addTupleCount(7);
   break;
 }
 case 182: {// wxUpdateUIEvent
@@ -595,10 +632,12 @@ case 191: {// wxHelpEvent
   break;
 }
 case 192: {// wxContextMenuEvent
+ wxContextMenuEvent * ev = (wxContextMenuEvent *) event;
     evClass = (char*)"wxContextMenuEvent";
     rt.addAtom((char*)"wxContextMenu");
     rt.addAtom(Etype->eName);
-    rt.addTupleCount(2);
+ rt.add(ev->GetPosition());
+    rt.addTupleCount(3);
   break;
 }
 case 193: {// wxIdleEvent
@@ -659,10 +698,13 @@ case 198: {// wxDateEvent
   break;
 }
 case 199: {// wxCalendarEvent
+ wxCalendarEvent * ev = (wxCalendarEvent *) event;
     evClass = (char*)"wxCalendarEvent";
     rt.addAtom((char*)"wxCalendar");
     rt.addAtom(Etype->eName);
-    rt.addTupleCount(2);
+ rt.addInt(ev->GetWeekDay());
+ rt.add(ev->GetDate());
+    rt.addTupleCount(4);
   break;
 }
 case 200: {// wxFileDirPickerEvent
@@ -734,10 +776,13 @@ case 209: {// wxTreeEvent
   break;
 }
 case 210: {// wxNotebookEvent
+ wxNotebookEvent * ev = (wxNotebookEvent *) event;
     evClass = (char*)"wxNotebookEvent";
     rt.addAtom((char*)"wxNotebook");
     rt.addAtom(Etype->eName);
-    rt.addTupleCount(2);
+ rt.addInt(ev->GetSelection());
+ rt.addInt(ev->GetOldSelection());
+    rt.addTupleCount(4);
   break;
 }
 case 216: {// wxClipboardTextEvent
diff --git a/lib/wx/c_src/gen/wxe_funcs.cpp b/lib/wx/c_src/gen/wxe_funcs.cpp
index 91ce5d810c..01a7ad7f70 100644
--- a/lib/wx/c_src/gen/wxe_funcs.cpp
+++ b/lib/wx/c_src/gen/wxe_funcs.cpp
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2008-2014. All Rights Reserved.
+ * Copyright Ericsson AB 2008-2015. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -51,8 +51,8 @@ void WxeApp::wxe_dispatch(wxeCommand& Ecmd)
        if(recurse_level > 1 && refd->type != 4) {
           delayed_delete->Append(Ecmd.Save());
        } else {
-          ((WxeApp *) wxTheApp)->clearPtr(This);
-          delete_object(This, refd); }
+          delete_object(This, refd);
+          ((WxeApp *) wxTheApp)->clearPtr(This);}
   } } break;
   case WXE_REGISTER_OBJECT: {
      registerPid(bp, Ecmd.caller, memenv);
@@ -60,13 +60,13 @@ void WxeApp::wxe_dispatch(wxeCommand& Ecmd)
      break;
  }
  case WXE_BIN_INCR:
-   driver_binary_inc_refc(Ecmd.bin[0]->bin);
+   driver_binary_inc_refc(Ecmd.bin[0].bin);
    break;
  case WXE_BIN_DECR:
-   driver_binary_dec_refc(Ecmd.bin[0]->bin);
+   driver_binary_dec_refc(Ecmd.bin[0].bin);
    break;
  case WXE_INIT_OPENGL:
-  wxe_initOpenGL(rt, bp);
+  wxe_initOpenGL(&rt, bp);
    break;
 
 case 100: { // wxEvtHandler::Connect
@@ -81,7 +81,7 @@ case 100: { // wxEvtHandler::Connect
   int * class_nameLen = (int *) bp; bp += 4;
 
   if(*haveUserData) {
-      userData = new wxeErlTerm(Ecmd.bin[0]);
+      userData = new wxeErlTerm(&Ecmd.bin[0]);
   }
 
   int eventType = wxeEventTypeFromAtom(bp); bp += *eventTypeLen;
@@ -5533,6 +5533,7 @@ case wxDC_GetUserScale: { // wxDC::GetUserScale
  wxDC *This = (wxDC *) getPtr(bp,memenv); bp += 4;
  if(!This) throw wxe_badarg(0);
  This->GetUserScale(&x,&y);
+ rt.ensureFloatCount(3);
  rt.addFloat(x);
  rt.addFloat(y);
  rt.addTupleCount(2);
@@ -6430,6 +6431,7 @@ case wxGraphicsContext_GetTextExtent: { // wxGraphicsContext::GetTextExtent
  bp += *textLen+((8-((0+ *textLen) & 7)) & 7);
  if(!This) throw wxe_badarg(0);
  This->GetTextExtent(text,&width,&height,&descent,&externalLeading);
+ rt.ensureFloatCount(5);
  rt.addFloat(width);
  rt.addFloat(height);
  rt.addFloat(descent);
@@ -6575,6 +6577,7 @@ case wxGraphicsMatrix_Get: { // wxGraphicsMatrix::Get
  wxGraphicsMatrix *This = (wxGraphicsMatrix *) getPtr(bp,memenv); bp += 4;
  if(!This) throw wxe_badarg(0);
  This->Get(&a,&b,&c,&d,&tx,&ty);
+ rt.ensureFloatCount(7);
  rt.addFloat(a);
  rt.addFloat(b);
  rt.addFloat(c);
@@ -6676,6 +6679,7 @@ case wxGraphicsMatrix_TransformPoint: { // wxGraphicsMatrix::TransformPoint
  wxGraphicsMatrix *This = (wxGraphicsMatrix *) getPtr(bp,memenv); bp += 4;
  if(!This) throw wxe_badarg(0);
  This->TransformPoint(&x,&y);
+ rt.ensureFloatCount(3);
  rt.addFloat(x);
  rt.addFloat(y);
  rt.addTupleCount(2);
@@ -6687,6 +6691,7 @@ case wxGraphicsMatrix_TransformDistance: { // wxGraphicsMatrix::TransformDistanc
  wxGraphicsMatrix *This = (wxGraphicsMatrix *) getPtr(bp,memenv); bp += 4;
  if(!This) throw wxe_badarg(0);
  This->TransformDistance(&dx,&dy);
+ rt.ensureFloatCount(3);
  rt.addFloat(dx);
  rt.addFloat(dy);
  rt.addTupleCount(2);
@@ -7348,7 +7353,7 @@ case wxControlWithItems_Append_2: { // wxControlWithItems::Append
  int * itemLen = (int *) bp; bp += 4;
  wxString item = wxString(bp, wxConvUTF8);
  bp += *itemLen+((8-((0+ *itemLen) & 7)) & 7);
- wxeErlTerm * clientData =  new wxeErlTerm(Ecmd.bin[0]);
+ wxeErlTerm * clientData =  new wxeErlTerm(&Ecmd.bin[0]);
  if(!This) throw wxe_badarg(0);
  int Result = This->Append(item,clientData);
  rt.addInt(Result);
@@ -7410,7 +7415,7 @@ case wxControlWithItems_getClientData: { // wxControlWithItems::GetClientObject
 case wxControlWithItems_setClientData: { // wxControlWithItems::SetClientObject
  wxControlWithItems *This = (wxControlWithItems *) getPtr(bp,memenv); bp += 4;
  unsigned int * n = (unsigned int *) bp; bp += 4;
- wxeErlTerm * clientData =  new wxeErlTerm(Ecmd.bin[0]);
+ wxeErlTerm * clientData =  new wxeErlTerm(&Ecmd.bin[0]);
  if(!This) throw wxe_badarg(0);
  This->SetClientObject(*n,clientData);
  break;
@@ -7461,7 +7466,7 @@ case wxControlWithItems_Insert_3: { // wxControlWithItems::Insert
  wxString item = wxString(bp, wxConvUTF8);
  bp += *itemLen+((8-((0+ *itemLen) & 7)) & 7);
  unsigned int * pos = (unsigned int *) bp; bp += 4;
- wxeErlTerm * clientData =  new wxeErlTerm(Ecmd.bin[0]);
+ wxeErlTerm * clientData =  new wxeErlTerm(&Ecmd.bin[0]);
  if(!This) throw wxe_badarg(0);
  int Result = This->Insert(item,*pos,clientData);
  rt.addInt(Result);
@@ -8985,7 +8990,7 @@ case wxBitmap_new_3: { // wxBitmap::wxBitmap
 }
 case wxBitmap_new_4: { // wxBitmap::wxBitmap
  int depth=1;
- const char * bits = (const char*) Ecmd.bin[0]->base;
+ const char * bits = (const char*) Ecmd.bin[0].base;
  int * width = (int *) bp; bp += 4;
  int * height = (int *) bp; bp += 4;
  while( * (int*) bp) { switch (* (int*) bp) {
@@ -9325,7 +9330,7 @@ case wxCursor_new_1_1: { // wxCursor::wxCursor
 case wxCursor_new_4: { // wxCursor::wxCursor
  int hotSpotX=-1;
  int hotSpotY=-1;
- const char * bits = (const char*) Ecmd.bin[0]->base;
+ const char * bits = (const char*) Ecmd.bin[0].base;
  int * width = (int *) bp; bp += 4;
  int * height = (int *) bp; bp += 4;
  while( * (int*) bp) { switch (* (int*) bp) {
@@ -9436,13 +9441,13 @@ case wxImage_new_4: { // wxImage::wxImage
  bool static_data=false;
  int * width = (int *) bp; bp += 4;
  int * height = (int *) bp; bp += 4;
- unsigned char * data = (unsigned char*) Ecmd.bin[0]->base;
+ unsigned char * data = (unsigned char*) Ecmd.bin[0].base;
  while( * (int*) bp) { switch (* (int*) bp) {
   case 1: {bp += 4;
  static_data = *(bool *) bp; bp += 4;
   } break;
  }};
- if(!static_data) {data = (unsigned char *) malloc(Ecmd.bin[0]->size);memcpy(data,Ecmd.bin[0]->base,Ecmd.bin[0]->size);};
+ if(!static_data) {data = (unsigned char *) malloc(Ecmd.bin[0].size);memcpy(data,Ecmd.bin[0].base,Ecmd.bin[0].size);};
  wxImage * Result = new EwxImage(*width,*height,data,static_data);
  newPtr((void *) Result, 1, memenv);
  rt.addRef(getRef((void *)Result,memenv), "wxImage");
@@ -9452,14 +9457,14 @@ case wxImage_new_5: { // wxImage::wxImage
  bool static_data=false;
  int * width = (int *) bp; bp += 4;
  int * height = (int *) bp; bp += 4;
- unsigned char * data = (unsigned char*) Ecmd.bin[0]->base;
- unsigned char * alpha = (unsigned char*) Ecmd.bin[1]->base;
+ unsigned char * data = (unsigned char*) Ecmd.bin[0].base;
+ unsigned char * alpha = (unsigned char*) Ecmd.bin[1].base;
  while( * (int*) bp) { switch (* (int*) bp) {
   case 1: {bp += 4;
  static_data = *(bool *) bp; bp += 4;
   } break;
  }};
- if(!static_data) { data = (unsigned char *) malloc(Ecmd.bin[0]->size); alpha = (unsigned char *) malloc(Ecmd.bin[1]->size); memcpy(data,Ecmd.bin[0]->base,Ecmd.bin[0]->size); memcpy(alpha,Ecmd.bin[1]->base,Ecmd.bin[1]->size);};
+ if(!static_data) { data = (unsigned char *) malloc(Ecmd.bin[0].size); alpha = (unsigned char *) malloc(Ecmd.bin[1].size); memcpy(data,Ecmd.bin[0].base,Ecmd.bin[0].size); memcpy(alpha,Ecmd.bin[1].base,Ecmd.bin[1].size);};
  wxImage * Result = new EwxImage(*width,*height,data,alpha,static_data);
  newPtr((void *) Result, 1, memenv);
  rt.addRef(getRef((void *)Result,memenv), "wxImage");
@@ -9603,14 +9608,14 @@ case wxImage_Create_4: { // wxImage::Create
  wxImage *This = (wxImage *) getPtr(bp,memenv); bp += 4;
  int * width = (int *) bp; bp += 4;
  int * height = (int *) bp; bp += 4;
- unsigned char * data = (unsigned char*) Ecmd.bin[0]->base;
+ unsigned char * data = (unsigned char*) Ecmd.bin[0].base;
  bp += 4; /* Align */
  while( * (int*) bp) { switch (* (int*) bp) {
   case 1: {bp += 4;
  static_data = *(bool *) bp; bp += 4;
   } break;
  }};
- if(!static_data) {data = (unsigned char *) malloc(Ecmd.bin[0]->size);memcpy(data,Ecmd.bin[0]->base,Ecmd.bin[0]->size);};
+ if(!static_data) {data = (unsigned char *) malloc(Ecmd.bin[0].size);memcpy(data,Ecmd.bin[0].base,Ecmd.bin[0].size);};
  if(!This) throw wxe_badarg(0);
  bool Result = This->Create(*width,*height,data,static_data);
  rt.addBool(Result);
@@ -9621,15 +9626,15 @@ case wxImage_Create_5: { // wxImage::Create
  wxImage *This = (wxImage *) getPtr(bp,memenv); bp += 4;
  int * width = (int *) bp; bp += 4;
  int * height = (int *) bp; bp += 4;
- unsigned char * data = (unsigned char*) Ecmd.bin[0]->base;
- unsigned char * alpha = (unsigned char*) Ecmd.bin[1]->base;
+ unsigned char * data = (unsigned char*) Ecmd.bin[0].base;
+ unsigned char * alpha = (unsigned char*) Ecmd.bin[1].base;
  bp += 4; /* Align */
  while( * (int*) bp) { switch (* (int*) bp) {
   case 1: {bp += 4;
  static_data = *(bool *) bp; bp += 4;
   } break;
  }};
- if(!static_data) { data =  (unsigned char *) malloc(Ecmd.bin[0]->size); alpha = (unsigned char *) malloc(Ecmd.bin[1]->size); memcpy(data,Ecmd.bin[0]->base,Ecmd.bin[0]->size); memcpy(alpha,Ecmd.bin[1]->base,Ecmd.bin[1]->size);};
+ if(!static_data) { data =  (unsigned char *) malloc(Ecmd.bin[0].size); alpha = (unsigned char *) malloc(Ecmd.bin[1].size); memcpy(data,Ecmd.bin[0].base,Ecmd.bin[0].size); memcpy(alpha,Ecmd.bin[1].base,Ecmd.bin[1].size);};
  if(!This) throw wxe_badarg(0);
  bool Result = This->Create(*width,*height,data,alpha,static_data);
  rt.addBool(Result);
@@ -10142,14 +10147,14 @@ case wxImage_SetAlpha_3: { // wxImage::SetAlpha
 case wxImage_SetAlpha_2: { // wxImage::SetAlpha
  bool static_data=false;
  wxImage *This = (wxImage *) getPtr(bp,memenv); bp += 4;
- unsigned char * alpha = (unsigned char*) Ecmd.bin[0]->base;
+ unsigned char * alpha = (unsigned char*) Ecmd.bin[0].base;
  bp += 4; /* Align */
  while( * (int*) bp) { switch (* (int*) bp) {
   case 1: {bp += 4;
  static_data = *(bool *) bp; bp += 4;
   } break;
  }};
- if(!static_data) {alpha = (unsigned char *) malloc(Ecmd.bin[0]->size);memcpy(alpha,Ecmd.bin[0]->base,Ecmd.bin[0]->size);};
+ if(!static_data) {alpha = (unsigned char *) malloc(Ecmd.bin[0].size);memcpy(alpha,Ecmd.bin[0].base,Ecmd.bin[0].size);};
  if(!This) throw wxe_badarg(0);
  This->SetAlpha(alpha,static_data);
  break;
@@ -10157,14 +10162,14 @@ case wxImage_SetAlpha_2: { // wxImage::SetAlpha
 case wxImage_SetData_2: { // wxImage::SetData
  bool static_data=false;
  wxImage *This = (wxImage *) getPtr(bp,memenv); bp += 4;
- unsigned char * data = (unsigned char*) Ecmd.bin[0]->base;
+ unsigned char * data = (unsigned char*) Ecmd.bin[0].base;
  bp += 4; /* Align */
  while( * (int*) bp) { switch (* (int*) bp) {
   case 1: {bp += 4;
  static_data = *(bool *) bp; bp += 4;
   } break;
  }};
- if(!static_data) {data = (unsigned char *) malloc(Ecmd.bin[0]->size);memcpy(data,Ecmd.bin[0]->base,Ecmd.bin[0]->size);};
+ if(!static_data) {data = (unsigned char *) malloc(Ecmd.bin[0].size);memcpy(data,Ecmd.bin[0].base,Ecmd.bin[0].size);};
  if(!This) throw wxe_badarg(0);
  This->SetData(data,static_data);
  break;
@@ -10172,7 +10177,7 @@ case wxImage_SetData_2: { // wxImage::SetData
 case wxImage_SetData_4: { // wxImage::SetData
  bool static_data=false;
  wxImage *This = (wxImage *) getPtr(bp,memenv); bp += 4;
- unsigned char * data = (unsigned char*) Ecmd.bin[0]->base;
+ unsigned char * data = (unsigned char*) Ecmd.bin[0].base;
  int * new_width = (int *) bp; bp += 4;
  int * new_height = (int *) bp; bp += 4;
  bp += 4; /* Align */
@@ -10181,7 +10186,7 @@ case wxImage_SetData_4: { // wxImage::SetData
  static_data = *(bool *) bp; bp += 4;
   } break;
  }};
- if(!static_data) {data = (unsigned char *) malloc(Ecmd.bin[0]->size);memcpy(data,Ecmd.bin[0]->base,Ecmd.bin[0]->size);};
+ if(!static_data) {data = (unsigned char *) malloc(Ecmd.bin[0].size);memcpy(data,Ecmd.bin[0].base,Ecmd.bin[0].size);};
  if(!This) throw wxe_badarg(0);
  This->SetData(data,*new_width,*new_height,static_data);
  break;
@@ -18546,7 +18551,7 @@ case wxTreeCtrl_AddRoot: { // wxTreeCtrl::AddRoot
  selectedImage = (int)*(int *) bp; bp += 4;
   } break;
   case 3: {bp += 4;
- data = new wxETreeItemData(Ecmd.bin[0]->size, Ecmd.bin[0]->base);
+ data = new wxETreeItemData(Ecmd.bin[0].size, Ecmd.bin[0].base);
  bp += 4; /* Align */
   } break;
  }};
@@ -18573,7 +18578,7 @@ case wxTreeCtrl_AppendItem: { // wxTreeCtrl::AppendItem
  selectedImage = (int)*(int *) bp; bp += 4;
   } break;
   case 3: {bp += 4;
- data = new wxETreeItemData(Ecmd.bin[0]->size, Ecmd.bin[0]->base);
+ data = new wxETreeItemData(Ecmd.bin[0].size, Ecmd.bin[0].base);
  bp += 4; /* Align */
   } break;
  }};
@@ -18975,7 +18980,7 @@ case wxTreeCtrl_InsertItem: { // wxTreeCtrl::InsertItem
  selImage = (int)*(int *) bp; bp += 4;
   } break;
   case 3: {bp += 4;
- data = new wxETreeItemData(Ecmd.bin[0]->size, Ecmd.bin[0]->base);
+ data = new wxETreeItemData(Ecmd.bin[0].size, Ecmd.bin[0].base);
  bp += 4; /* Align */
   } break;
  }};
@@ -19054,7 +19059,7 @@ case wxTreeCtrl_PrependItem: { // wxTreeCtrl::PrependItem
  selectedImage = (int)*(int *) bp; bp += 4;
   } break;
   case 3: {bp += 4;
- data = new wxETreeItemData(Ecmd.bin[0]->size, Ecmd.bin[0]->base);
+ data = new wxETreeItemData(Ecmd.bin[0].size, Ecmd.bin[0].base);
  bp += 4; /* Align */
   } break;
  }};
@@ -19138,7 +19143,7 @@ case wxTreeCtrl_SetItemData: { // wxTreeCtrl::SetItemData
  wxTreeCtrl *This = (wxTreeCtrl *) getPtr(bp,memenv); bp += 4;
  bp += 4; /* Align */
  wxTreeItemId item = wxTreeItemId((void *) *(wxUint64 *) bp); bp += 8;
- wxETreeItemData * data =  new wxETreeItemData(Ecmd.bin[0]->size, Ecmd.bin[0]->base);
+ wxETreeItemData * data =  new wxETreeItemData(Ecmd.bin[0].size, Ecmd.bin[0].base);
  if(!This) throw wxe_badarg(0);
  This->SetItemData(item,data);
  break;
@@ -20593,21 +20598,21 @@ case wxPalette_new_0: { // wxPalette::wxPalette
  break;
 }
 case wxPalette_new_4: { // wxPalette::wxPalette
- const unsigned char * red = (const unsigned char*) Ecmd.bin[0]->base;
- const unsigned char * green = (const unsigned char*) Ecmd.bin[1]->base;
- const unsigned char * blue = (const unsigned char*) Ecmd.bin[2]->base;
- wxPalette * Result = new EwxPalette(Ecmd.bin[0]->size,red,green,blue);
+ const unsigned char * red = (const unsigned char*) Ecmd.bin[0].base;
+ const unsigned char * green = (const unsigned char*) Ecmd.bin[1].base;
+ const unsigned char * blue = (const unsigned char*) Ecmd.bin[2].base;
+ wxPalette * Result = new EwxPalette(Ecmd.bin[0].size,red,green,blue);
  newPtr((void *) Result, 1, memenv);
  rt.addRef(getRef((void *)Result,memenv), "wxPalette");
  break;
 }
 case wxPalette_Create: { // wxPalette::Create
  wxPalette *This = (wxPalette *) getPtr(bp,memenv); bp += 4;
- const unsigned char * red = (const unsigned char*) Ecmd.bin[0]->base;
- const unsigned char * green = (const unsigned char*) Ecmd.bin[1]->base;
- const unsigned char * blue = (const unsigned char*) Ecmd.bin[2]->base;
+ const unsigned char * red = (const unsigned char*) Ecmd.bin[0].base;
+ const unsigned char * green = (const unsigned char*) Ecmd.bin[1].base;
+ const unsigned char * blue = (const unsigned char*) Ecmd.bin[2].base;
  if(!This) throw wxe_badarg(0);
- bool Result = This->Create(Ecmd.bin[0]->size,red,green,blue);
+ bool Result = This->Create(Ecmd.bin[0].size,red,green,blue);
  rt.addBool(Result);
  break;
 }
@@ -23746,6 +23751,7 @@ case wxAuiManager_GetDockSizeConstraint: { // wxAuiManager::GetDockSizeConstrain
  wxAuiManager *This = (wxAuiManager *) getPtr(bp,memenv); bp += 4;
  if(!This) throw wxe_badarg(0);
  This->GetDockSizeConstraint(&width_pct,&height_pct);
+ rt.ensureFloatCount(3);
  rt.addFloat(width_pct);
  rt.addFloat(height_pct);
  rt.addTupleCount(2);
@@ -30254,7 +30260,7 @@ case wxStyledTextCtrl_GetUseAntiAliasing: { // wxStyledTextCtrl::GetUseAntiAlias
 }
 case wxStyledTextCtrl_AddTextRaw: { // wxStyledTextCtrl::AddTextRaw
  wxStyledTextCtrl *This = (wxStyledTextCtrl *) getPtr(bp,memenv); bp += 4;
- const char * text = (const char*) Ecmd.bin[0]->base;
+ const char * text = (const char*) Ecmd.bin[0].base;
  if(!This) throw wxe_badarg(0);
  This->AddTextRaw(text);
  break;
@@ -30262,7 +30268,7 @@ case wxStyledTextCtrl_AddTextRaw: { // wxStyledTextCtrl::AddTextRaw
 case wxStyledTextCtrl_InsertTextRaw: { // wxStyledTextCtrl::InsertTextRaw
  wxStyledTextCtrl *This = (wxStyledTextCtrl *) getPtr(bp,memenv); bp += 4;
  int * pos = (int *) bp; bp += 4;
- const char * text = (const char*) Ecmd.bin[0]->base;
+ const char * text = (const char*) Ecmd.bin[0].base;
  if(!This) throw wxe_badarg(0);
  This->InsertTextRaw(*pos,text);
  break;
@@ -30311,7 +30317,7 @@ case wxStyledTextCtrl_GetTextRangeRaw: { // wxStyledTextCtrl::GetTextRangeRaw
 }
 case wxStyledTextCtrl_SetTextRaw: { // wxStyledTextCtrl::SetTextRaw
  wxStyledTextCtrl *This = (wxStyledTextCtrl *) getPtr(bp,memenv); bp += 4;
- const char * text = (const char*) Ecmd.bin[0]->base;
+ const char * text = (const char*) Ecmd.bin[0].base;
  if(!This) throw wxe_badarg(0);
  This->SetTextRaw(text);
  break;
@@ -30327,7 +30333,7 @@ case wxStyledTextCtrl_GetTextRaw: { // wxStyledTextCtrl::GetTextRaw
 }
 case wxStyledTextCtrl_AppendTextRaw: { // wxStyledTextCtrl::AppendTextRaw
  wxStyledTextCtrl *This = (wxStyledTextCtrl *) getPtr(bp,memenv); bp += 4;
- const char * text = (const char*) Ecmd.bin[0]->base;
+ const char * text = (const char*) Ecmd.bin[0].base;
  if(!This) throw wxe_badarg(0);
  This->AppendTextRaw(text);
  break;
diff --git a/lib/wx/c_src/gen/wxe_init.cpp b/lib/wx/c_src/gen/wxe_init.cpp
index 3a4bced790..1673f2a1b3 100644
--- a/lib/wx/c_src/gen/wxe_init.cpp
+++ b/lib/wx/c_src/gen/wxe_init.cpp
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2008-2014. All Rights Reserved.
+ * Copyright Ericsson AB 2008-2015. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -56,6 +56,12 @@ void WxeApp::init_nonconsts(wxeMemEnv *memenv, ErlDrvTermData caller) {
  rt.addTupleCount(2);
  rt.addAtom("wxMOD_CMD"); rt.addInt(wxMOD_CMD);
  rt.addTupleCount(2);
+ rt.addAtom("wxCURSOR_ARROWWAIT"); rt.addInt(wxCURSOR_ARROWWAIT);
+ rt.addTupleCount(2);
+ rt.addAtom("wxCURSOR_DEFAULT"); rt.addInt(wxCURSOR_DEFAULT);
+ rt.addTupleCount(2);
+ rt.addAtom("wxCURSOR_MAX"); rt.addInt(wxCURSOR_MAX);
+ rt.addTupleCount(2);
    rt.addAtom("wxBLACK"); rt.add(*(wxBLACK));
    rt.addTupleCount(2);
    rt.addAtom("wxBLACK_BRUSH"); rt.addRef(getRef((void *)wxBLACK_BRUSH,memenv),"wxBrush");
@@ -138,7 +144,7 @@ void WxeApp::init_nonconsts(wxeMemEnv *memenv, ErlDrvTermData caller) {
    rt.addTupleCount(2);
    rt.addAtom("wxWHITE_PEN"); rt.addRef(getRef((void *)wxWHITE_PEN,memenv),"wxPen");
    rt.addTupleCount(2);
- rt.endList(57);
+ rt.endList(60);
  rt.addTupleCount(2);
   rt.send();
 }
diff --git a/lib/wx/c_src/wxe_driver.c b/lib/wx/c_src/wxe_driver.c
index ea52737fa2..3b71f49196 100644
--- a/lib/wx/c_src/wxe_driver.c
+++ b/lib/wx/c_src/wxe_driver.c
@@ -118,7 +118,11 @@ wxe_driver_start(ErlDrvPort port, char *buff)
       ErlDrvTermData term_port = driver_mk_port(port);
       set_port_control_flags(port, PORT_CONTROL_FLAG_BINARY);
       data->driver_data = NULL;
-      data->bin = NULL; 
+      data->bin = (WXEBinRef*) driver_alloc(sizeof(WXEBinRef)*DEF_BINS);
+      data->bin[0].from = 0;
+      data->bin[1].from = 0;
+      data->bin[2].from = 0;
+      data->max_bins = DEF_BINS;
       data->port_handle = port;
       data->port = term_port;
       data->pdl = driver_pdl_create(port);
@@ -146,7 +150,12 @@ wxe_driver_stop(ErlDrvData handle)
    if(sd->port_handle != WXE_DRV_PORT_HANDLE) {
       // fprintf(stderr, "%s:%d: STOP \r\n", __FILE__,__LINE__);
       meta_command(DELETE_PORT,sd);
-      free(handle);
+   } else {
+       // fprintf(stderr, "%s:%d: STOP \r\n", __FILE__,__LINE__);
+       stop_native_gui(wxe_master);
+       unload_native_gui();
+       free(wxe_master);
+       wxe_master = NULL;
    }
 }
 
@@ -154,10 +163,6 @@ static void
 wxe_driver_unload(void) 
 {
    // fprintf(stderr, "%s:%d: UNLOAD \r\n", __FILE__,__LINE__);
-   stop_native_gui(wxe_master);
-   unload_native_gui();
-   free(wxe_master);
-   wxe_master = NULL;
 }
 
 static ErlDrvSSizeT
@@ -207,26 +212,40 @@ static void
 standard_outputv(ErlDrvData drv_data, ErlIOVec* ev)
 {
    wxe_data* sd = (wxe_data *) drv_data;
-   WXEBinRef * binref;
+   WXEBinRef * binref = NULL;
    ErlDrvBinary* bin;
-   
+   int i, max;
+
+   for(i = 0; i < sd->max_bins; i++) {
+       if(sd->bin[i].from == 0) {
+	   binref = &sd->bin[i];
+	   break;
+       }
+   }
+
+   if(binref == NULL) { /* realloc */
+       max = sd->max_bins + DEF_BINS;
+       driver_realloc(sd->bin, sizeof(WXEBinRef)*max);
+       for(i=sd->max_bins; i < max; i++) {
+	   sd->bin[i].from = 0;
+       }
+       binref = &sd->bin[sd->max_bins];
+       sd->max_bins = max;
+   }
+
    if(ev->vsize == 2) {
-      binref = driver_alloc(sizeof(WXEBinRef));
       binref->base = ev->iov[1].iov_base;
       binref->size = ev->iov[1].iov_len;
       binref->from = driver_caller(sd->port_handle);
       bin = ev->binv[1];
       driver_binary_inc_refc(bin); /* Otherwise it could get deallocated */
       binref->bin = bin;
-      binref->next = sd->bin;
-      sd->bin = binref;      
-   } else { /* Empty binary (becomes NULL) */ 
-      binref = driver_alloc(sizeof(WXEBinRef));
+      sd->bin = binref;
+   } else { /* Empty binary (becomes NULL) */
       binref->base = NULL;
       binref->size = 0;
       binref->from = driver_caller(sd->port_handle);
       binref->bin = NULL;
-      binref->next = sd->bin;
       sd->bin = binref;
    }
 }
diff --git a/lib/wx/c_src/wxe_driver.h b/lib/wx/c_src/wxe_driver.h
index e35bbe2118..9682f33e95 100644
--- a/lib/wx/c_src/wxe_driver.h
+++ b/lib/wx/c_src/wxe_driver.h
@@ -37,12 +37,12 @@ typedef struct wxe_bin_ref {
    size_t size;
    ErlDrvBinary* bin;
    ErlDrvTermData from;
-   WXEBinRefptr next;
 } WXEBinRef;
 
-typedef struct wxe_data_def {   
+typedef struct wxe_data_def {
    void * driver_data;
    WXEBinRef * bin;		/* Argument binaries */
+   Uint32 max_bins;
    ErlDrvPort port_handle;
    ErlDrvTermData port;
    int is_cbport;
@@ -50,6 +50,9 @@ typedef struct wxe_data_def {
 } wxe_data;
 
 
+/* Number of bins per port should be small */
+#define DEF_BINS 3
+
 void init_glexts(wxe_data*);
 
 int  load_native_gui();
diff --git a/lib/wx/c_src/wxe_gl.cpp b/lib/wx/c_src/wxe_gl.cpp
index a9feb23831..347718ab14 100644
--- a/lib/wx/c_src/wxe_gl.cpp
+++ b/lib/wx/c_src/wxe_gl.cpp
@@ -67,7 +67,7 @@ void dlclose(HMODULE Lib) {
 typedef void * DL_LIB_P;
 #endif
 
-void wxe_initOpenGL(wxeReturn rt, char *bp) {
+void wxe_initOpenGL(wxeReturn *rt, char *bp) {
   DL_LIB_P LIBhandle;
   int (*init_opengl)(void *);
 #ifdef _WIN32
@@ -82,9 +82,9 @@ void wxe_initOpenGL(wxeReturn rt, char *bp) {
       wxe_gl_dispatch = (WXE_GL_DISPATCH) dlsym(LIBhandle, "egl_dispatch");
       if(init_opengl && wxe_gl_dispatch) {
 	(*init_opengl)(erlCallbacks);
-	rt.addAtom((char *) "ok");
-	rt.add(wxString::FromAscii("initiated"));
-	rt.addTupleCount(2);
+	rt->addAtom((char *) "ok");
+	rt->add(wxString::FromAscii("initiated"));
+	rt->addTupleCount(2);
 	erl_gl_initiated = TRUE;
       } else {
 	wxString msg;
@@ -95,24 +95,24 @@ void wxe_initOpenGL(wxeReturn rt, char *bp) {
 	  msg += wxT("egl_init_opengl ");
 	if(!wxe_gl_dispatch) 
 	  msg += wxT("egl_dispatch ");
-	rt.addAtom((char *) "error");
-	rt.add(msg);
-	rt.addTupleCount(2);
+	rt->addAtom((char *) "error");
+	rt->add(msg);
+	rt->addTupleCount(2);
       }
     } else {
       wxString msg;
       msg.Printf(wxT("Could not load dll: "));
       msg += wxString::FromAscii(bp);
-      rt.addAtom((char *) "error");
-      rt.add(msg);
-      rt.addTupleCount(2);
+      rt->addAtom((char *) "error");
+      rt->add(msg);
+      rt->addTupleCount(2);
     }
   } else {
-    rt.addAtom((char *) "ok");
-    rt.add(wxString::FromAscii("already initilized"));
-    rt.addTupleCount(2);
+    rt->addAtom((char *) "ok");
+    rt->add(wxString::FromAscii("already initilized"));
+    rt->addTupleCount(2);
   }
-  rt.send();
+  rt->send();
 }
 
 void setActiveGL(ErlDrvTermData caller, wxGLCanvas *canvas)
@@ -132,11 +132,15 @@ void deleteActiveGL(wxGLCanvas *canvas)
   }
 }
 
-void gl_dispatch(int op, char *bp,ErlDrvTermData caller,WXEBinRef *bins[]){
+void gl_dispatch(int op, char *bp,ErlDrvTermData caller,WXEBinRef *bins){
   if(caller != gl_active) {
     wxGLCanvas * current = glc[caller];
-    if(current) { gl_active = caller; current->SetCurrent();}
-    else {
+    if(current) {
+      if(current != glc[gl_active]) {
+	gl_active = caller;
+	current->SetCurrent();
+      }
+    } else {
       ErlDrvTermData rt[] = // Error msg
 	{ERL_DRV_ATOM, driver_mk_atom((char *) "_egl_error_"),
 	 ERL_DRV_INT,  (ErlDrvTermData) op,
@@ -149,12 +153,12 @@ void gl_dispatch(int op, char *bp,ErlDrvTermData caller,WXEBinRef *bins[]){
   char * bs[3];
   int bs_sz[3];
   for(int i=0; i<3; i++) {
-    if(bins[i]) {
-      bs[i] = bins[i]->base;
-      bs_sz[i] = bins[i]->size;
+    if(bins[i].from) {
+      bs[i] = bins[i].base;
+      bs_sz[i] = bins[i].size;
     }
-    else 
-      bs[i] = NULL;
+    else
+      break;
   }
   wxe_gl_dispatch(op, bp, WXE_DRV_PORT_HANDLE, caller, bs, bs_sz);
 }
diff --git a/lib/wx/c_src/wxe_gl.h b/lib/wx/c_src/wxe_gl.h
index dc117bf610..69095036a0 100644
--- a/lib/wx/c_src/wxe_gl.h
+++ b/lib/wx/c_src/wxe_gl.h
@@ -26,8 +26,8 @@
 void activateGL(ErlDrvTermData caller);
 void setActiveGL(ErlDrvTermData caller, wxGLCanvas *canvas);
 void deleteActiveGL(wxGLCanvas *canvas);
-void wxe_initOpenGL(wxeReturn, char*);
-void gl_dispatch(int op, char *bp, ErlDrvTermData caller, WXEBinRef *bins[]);
+void wxe_initOpenGL(wxeReturn *, char*);
+void gl_dispatch(int op, char *bp, ErlDrvTermData caller, WXEBinRef *bins);
 
 WX_DECLARE_HASH_MAP(ErlDrvTermData, wxGLCanvas*, wxIntegerHash, wxIntegerEqual, wxeGLC);
 extern wxeGLC glc;
diff --git a/lib/wx/c_src/wxe_helpers.cpp b/lib/wx/c_src/wxe_helpers.cpp
index 15d75080d9..528c541403 100644
--- a/lib/wx/c_src/wxe_helpers.cpp
+++ b/lib/wx/c_src/wxe_helpers.cpp
@@ -24,59 +24,169 @@
  * Erlang Commands
  * ****************************************************************************/
 
-wxeCommand::wxeCommand(int fc,char * cbuf,int buflen, wxe_data *sd)
-  : wxObject()
+wxeCommand::wxeCommand()
+{
+}
+
+wxeCommand::~wxeCommand()
+{
+  Delete();
+}
+
+void wxeCommand::Delete()
 {
-  WXEBinRef *temp, *start, *prev;
   int n = 0;
-  ref_count = 1;
-  caller = driver_caller(sd->port_handle);
-  port   = sd->port;
-  op = fc;
-  len = buflen;
-  bin[0] = NULL;
-  bin[1] = NULL;
-  bin[2] = NULL;
+
+  if(buffer) {
+    while(bin[n].from) {
+      if(bin[n].bin)
+	driver_free_binary(bin[n].bin);
+      n++;
+    }
+    if(len > 64)
+      driver_free(buffer);
+    buffer = NULL;
+    op = -1;
+  }
+}
+
+/* ****************************************************************************
+ * wxeFifo
+ * ****************************************************************************/
+wxeFifo::wxeFifo(unsigned int sz)
+{
+  m_q = (wxeCommand *) driver_alloc(sizeof(wxeCommand) * sz);
+  m_orig_sz = sz;
+  m_max = sz;
+  m_n = 0;
+  m_first = 0;
+  m_old = NULL;
+  for(unsigned int i = 0; i < sz; i++) {
+    m_q[i].buffer = NULL;
+    m_q[i].op = -1;
+  }
+}
+
+wxeFifo::~wxeFifo() {
+  // dealloc all memory buffers
+  driver_free(m_q);
+}
+
+wxeCommand * wxeFifo::Get()
+{
+  unsigned int pos;
+  if(m_n > 0) {
+    pos = m_first++;
+    m_n--;
+    m_first %= m_max;
+    return &m_q[pos];
+  }
+  return NULL;
+}
+
+void wxeFifo::Add(int fc, char * cbuf,int buflen, wxe_data *sd)
+{
+  unsigned int pos;
+  wxeCommand *curr;
+
+  int n = 0;
+
+  if(m_n == (m_max-1)) { // resize
+    Realloc();
+  }
+
+  pos = (m_first + m_n) % m_max;
+  m_n++;
+
+  curr = &m_q[pos];
+  curr->caller = driver_caller(sd->port_handle);
+  curr->port   = sd->port;
+  curr->op  = fc;
+  curr->len = buflen;
+  curr->bin[0].from = 0;
+  curr->bin[1].from = 0;
+  curr->bin[2].from = 0;
 
   if(cbuf) {
-    buffer = (char *) driver_alloc(len);
-    memcpy((void *) buffer, (void *) cbuf, len);;
-
-    temp = sd->bin;
-
-    prev  = NULL;
-    start = temp;
-
-    while(temp) {
-      if(caller == temp->from) {
-	bin[n++] = temp;
-	if(prev) {
-	  prev->next = temp->next;
-	} else {
-	  start = temp->next;
-	}
-	temp = temp->next;
-      } else {
-	prev = temp;
-	temp = temp->next;
+    if(buflen > 64)
+      curr->buffer = (char *) driver_alloc(buflen);
+    else
+      curr->buffer = curr->c_buf;
+    memcpy((void *) curr->buffer, (void *) cbuf, buflen);
+
+    for(unsigned int i=0; i<sd->max_bins; i++) {
+      if(curr->caller == sd->bin[i].from) {
+	sd->bin[i].from = 0; // Mark copied
+	curr->bin[n].bin  = sd->bin[i].bin;
+	curr->bin[n].base = sd->bin[i].base;
+	curr->bin[n].size = sd->bin[i].size;
+	curr->bin[n].from = 1;
+	n++;
       }
     }
-    sd->bin = start;
   } else {   // No-op only PING currently
-    buffer = NULL;
+    curr->buffer = NULL;
   }
 }
 
-wxeCommand::~wxeCommand() {
-  int n = 0;
-  if(buffer) {
-    while(bin[n]) {
-      if(bin[n]->bin)
-	driver_free_binary(bin[n]->bin);
-      driver_free(bin[n++]);
+void wxeFifo::Append(wxeCommand *orig)
+{
+  unsigned int pos;
+  wxeCommand *curr;
+  if(m_n == (m_max-1)) { // resize
+    Realloc();
+  }
+
+  pos = (m_first + m_n) % m_max;
+  m_n++;
+  curr = &m_q[pos];
+  curr->caller = orig->caller;
+  curr->port   = orig->port;
+  curr->op = orig->op;
+  curr->len = orig->len;
+  curr->bin[0] = orig->bin[0];
+  curr->bin[1] = orig->bin[1];
+  curr->bin[2] = orig->bin[2];
+
+  if(orig->len > 64)
+    curr->buffer = orig->buffer;
+  else {
+    curr->buffer = curr->c_buf;
+    memcpy((void *) curr->buffer, (void *) orig->buffer, orig->len);
+  }
+  orig->op = -1;
+  orig->buffer = NULL;
+  orig->bin[0].from = 0;
+}
+
+void wxeFifo::Realloc()
+{
+  unsigned int i;
+  unsigned int growth = m_orig_sz / 2;
+  unsigned int new_sz = growth + m_max;
+  unsigned int max  = m_max;
+  unsigned int first = m_first;
+  unsigned int n = m_n;
+  wxeCommand * old = m_q;
+  wxeCommand * queue = (wxeCommand *)driver_alloc(new_sz*sizeof(wxeCommand));
+
+  m_max=new_sz;
+  m_first = 0;
+  m_n=0;
+  m_q = queue;
+
+  for(i=0; i < n; i++) {
+    unsigned int pos = i+first;
+    if(old[pos%max].op >= 0) {
+      Append(&old[pos%max]);
     }
-    driver_free(buffer);
   }
+  for(i = m_n; i < new_sz; i++) { // Reset the rest
+    m_q[i].buffer = NULL;
+    m_q[i].op = -1;
+  }
+  // Can not free old queue here it can be used in the wx thread
+  m_old = old;
 }
 
 /* ****************************************************************************
diff --git a/lib/wx/c_src/wxe_helpers.h b/lib/wx/c_src/wxe_helpers.h
index 659bc666c6..61d385641f 100644
--- a/lib/wx/c_src/wxe_helpers.h
+++ b/lib/wx/c_src/wxe_helpers.h
@@ -39,22 +39,42 @@ class wxeMetaCommand : public wxEvent
     ErlDrvPDL        pdl;
 };
 
-class wxeCommand : public wxObject
+class wxeCommand
 {
  public:
-    wxeCommand(int fc,char * cbuf,int buflen, wxe_data *);
+    wxeCommand();
     virtual ~wxeCommand(); // Use Delete()
 
-    wxeCommand * Save() {ref_count++; return this; };
-    void Delete() {if(--ref_count < 1) delete this;};
+    wxeCommand * Save() { return this; };
+    void Delete();
 
     ErlDrvTermData   caller;
     ErlDrvTermData   port;
-    WXEBinRef *      bin[3];
+    WXEBinRef        bin[3];
     char *           buffer;
     int              len;
     int              op;
-    int              ref_count;
+    char             c_buf[64];  // 64b covers 90% of usage
+};
+
+class wxeFifo {
+ public:
+    wxeFifo(unsigned int size);
+    virtual ~wxeFifo();
+
+    void Add(int fc, char * cbuf,int buflen, wxe_data *);
+    void Append(wxeCommand *Other);
+
+    wxeCommand * Get();
+
+    void Realloc();
+
+    unsigned int m_max;
+    unsigned int m_first;
+    unsigned int m_n;
+    unsigned int m_orig_sz;
+    wxeCommand *m_q;
+    wxeCommand *m_old;
 };
 
 class intListElement {
diff --git a/lib/wx/c_src/wxe_impl.cpp b/lib/wx/c_src/wxe_impl.cpp
index 0ee52e3af2..b75775ff34 100644
--- a/lib/wx/c_src/wxe_impl.cpp
+++ b/lib/wx/c_src/wxe_impl.cpp
@@ -55,9 +55,10 @@ extern ErlDrvCond  * wxe_batch_locker_c;
 extern ErlDrvTermData  init_caller;
 extern int wxe_status;
 
-wxList * wxe_batch = NULL;
-wxList * wxe_batch_cb_saved = NULL;
-int wxe_batch_caller = 0;  // inside batch if larger than 0
+wxeFifo * wxe_queue = NULL;
+wxeFifo * wxe_queue_cb_saved = NULL;
+
+unsigned int wxe_needs_signal = 0;  // inside batch if larger than 0
 
 /* ************************************************************
  *  Commands from erlang
@@ -68,38 +69,37 @@ void push_command(int op,char * buf,int len, wxe_data *sd)
 {
   /* fprintf(stderr, "Op %d %d [%ld] %d\r\n", op, (int) driver_caller(sd->port_handle),
      wxe_batch->size(), wxe_batch_caller),fflush(stderr); */
-  wxeCommand *Cmd = new wxeCommand(op, buf, len, sd);
   erl_drv_mutex_lock(wxe_batch_locker_m);
-  wxe_batch->Append(Cmd);
+  wxe_queue->Add(op, buf, len, sd);
 
-  if(wxe_batch_caller > 0) {
+  if(wxe_needs_signal) {
     // wx-thread is waiting on batch end in cond_wait
     erl_drv_cond_signal(wxe_batch_locker_c);
+    erl_drv_mutex_unlock(wxe_batch_locker_m);
   } else {
     // wx-thread is waiting gui-events
-    if(op == WXE_BATCH_BEGIN) {
-      wxe_batch_caller = 1;
-    }
-    erl_drv_cond_signal(wxe_batch_locker_c);
+    erl_drv_mutex_unlock(wxe_batch_locker_m);
     wxWakeUpIdle();
   }
-  erl_drv_mutex_unlock(wxe_batch_locker_m);
 }
 
 void meta_command(int what, wxe_data *sd) {
-  if(what == PING_PORT) {
+  if(what == PING_PORT && wxe_status == WXE_INITIATED) {
     erl_drv_mutex_lock(wxe_batch_locker_m);
-    if(wxe_batch_caller > 0) {
-      wxeCommand *Cmd = new wxeCommand(WXE_DEBUG_PING, NULL, 0, sd);
-      wxe_batch->Append(Cmd);
+    if(wxe_needs_signal) {
+      wxe_queue->Add(WXE_DEBUG_PING, NULL, 0, sd);
       erl_drv_cond_signal(wxe_batch_locker_c);
     }
     wxWakeUpIdle();
     erl_drv_mutex_unlock(wxe_batch_locker_m);
   } else {
-    if(sd) {
+    if(sd && wxe_status == WXE_INITIATED) {
       wxeMetaCommand Cmd(sd, what);
       wxTheApp->AddPendingEvent(Cmd);
+      if(what == DELETE_PORT) {
+	driver_free(sd->bin);
+	free(sd);
+      }
     }
   }
 }
@@ -121,12 +121,12 @@ bool WxeApp::OnInit()
 {
 
   global_me = new wxeMemEnv();
-  wxe_batch = new wxList;
-  wxe_batch_cb_saved = new wxList;
+  wxe_queue = new wxeFifo(1000);
+  wxe_queue_cb_saved = new wxeFifo(200);
   cb_buff = NULL;
   recurse_level = 0;
-  delayed_cleanup = new wxList;
-  delayed_delete  = new wxList;
+  delayed_delete = new wxeFifo(10);
+  delayed_cleanup  = new wxList;
 
   wxe_ps_init2();
   // wxIdleEvent::SetMode(wxIDLE_PROCESS_SPECIFIED); // Hmm printpreview doesn't work in 2.9 with this
@@ -168,7 +168,10 @@ void WxeApp::MacOpenFile(const wxString &filename) {
 #endif
 
 void WxeApp::shutdown(wxeMetaCommand& Ecmd) {
+  wxe_status = WXE_EXITING;
   ExitMainLoop();
+  delete wxe_queue;
+  delete wxe_queue_cb_saved;
 }
 
 void WxeApp::dummy_close(wxEvent& Ev) {
@@ -197,41 +200,38 @@ void handle_event_callback(ErlDrvPort port, ErlDrvTermData process)
 {
   WxeApp * app = (WxeApp *) wxTheApp;
   ErlDrvMonitor monitor;
+
+  if(wxe_status != WXE_INITIATED)
+    return;
+
   // Is thread safe if pdl have been incremented
   if(driver_monitor_process(port, process, &monitor) == 0) {
     // Should we be able to handle commands when recursing? probably
-    erl_drv_mutex_lock(wxe_batch_locker_m);
-    //fprintf(stderr, "\r\nCB EV Start %lu \r\n", process);fflush(stderr);
+    // fprintf(stderr, "\r\nCB EV Start %lu \r\n", process);fflush(stderr);
     app->recurse_level++;
-    app->dispatch_cb(wxe_batch, wxe_batch_cb_saved, process);
+    app->dispatch_cb(wxe_queue, wxe_queue_cb_saved, process);
     app->recurse_level--;
-    //fprintf(stderr, "CB EV done %lu \r\n", process);fflush(stderr);
-    wxe_batch_caller = 0;
-    erl_drv_mutex_unlock(wxe_batch_locker_m);
+    // fprintf(stderr, "CB EV done %lu \r\n", process);fflush(stderr);
     driver_demonitor_process(port, &monitor);
   }
 }
 
 void WxeApp::dispatch_cmds()
 {
-  erl_drv_mutex_lock(wxe_batch_locker_m);
+  if(wxe_status != WXE_INITIATED)
+    return;
   recurse_level++;
-  int level = dispatch(wxe_batch_cb_saved, 0, WXE_STORED);
-  dispatch(wxe_batch, level, WXE_NORMAL);
+  int level = dispatch(wxe_queue_cb_saved, 0, WXE_STORED);
+  dispatch(wxe_queue, level, WXE_NORMAL);
   recurse_level--;
-  wxe_batch_caller = 0;
-  erl_drv_mutex_unlock(wxe_batch_locker_m);
+
   // Cleanup old memenv's and deleted objects
   if(recurse_level == 0) {
-    if(delayed_delete->size() > 0)
-      for( wxList::compatibility_iterator node = delayed_delete->GetFirst();
-	   node;
-	   node = delayed_delete->GetFirst()) {
-	wxeCommand *event = (wxeCommand *)node->GetData();
-	delayed_delete->Erase(node);
-	wxe_dispatch(*event);
-	event->Delete();
-      }
+    wxeCommand *curr;
+    while((curr = delayed_delete->Get()) != NULL) {
+      wxe_dispatch(*curr);
+      curr->Delete();
+    }
     if(delayed_cleanup->size() > 0)
       for( wxList::compatibility_iterator node = delayed_cleanup->GetFirst();
 	   node;
@@ -241,158 +241,151 @@ void WxeApp::dispatch_cmds()
 	destroyMemEnv(*event);
 	delete event;
       }
+    if(wxe_queue_cb_saved->m_old) {
+      driver_free(wxe_queue_cb_saved->m_old);
+      wxe_queue_cb_saved->m_old = NULL;
+    }
+    if(delayed_delete->m_old) {
+      driver_free(delayed_delete->m_old);
+      delayed_delete->m_old = NULL;
+    }
   }
 }
 
-// Should have  erl_drv_mutex_lock(wxe_batch_locker_m);
-// when entering this function and it should be released
-// afterwards
-int WxeApp::dispatch(wxList * batch, int blevel, int list_type)
+int WxeApp::dispatch(wxeFifo * batch, int blevel, int list_type)
 {
   int ping = 0;
-  // erl_drv_mutex_lock(wxe_batch_locker_m);  must be locked already
-  while(true)
-    {
-      if (batch->size() > 0) {
-	for( wxList::compatibility_iterator node = batch->GetFirst();
-	     node;
-	     node = batch->GetFirst())
-	  {
-	    wxeCommand *event = (wxeCommand *)node->GetData();
-	    batch->Erase(node);
-	    switch(event->op) {
-	    case WXE_BATCH_END:
-	      {--blevel; }
-	      break;
-	    case WXE_BATCH_BEGIN:
-	      {blevel++; }
-	      break;
-	    case WXE_DEBUG_PING:
-	      // When in debugger we don't want to hang waiting for a BATCH_END
-	      // that never comes, because a breakpoint have hit.
-	      ping++;
-	      if(ping > 2)
-		blevel = 0;
-	      break;
-	    case WXE_CB_RETURN:
-	      // erl_drv_mutex_unlock(wxe_batch_locker_m); should be called after
-	      // whatever cleaning is necessary
-	      if(event->len > 0) {
-		cb_buff = (char *) driver_alloc(event->len);
-		memcpy(cb_buff, event->buffer, event->len);
-	      }
-	      return blevel;
-	    default:
-	      erl_drv_mutex_unlock(wxe_batch_locker_m);
-	      if(event->op < OPENGL_START) {
-		// fprintf(stderr, "  c %d (%d) \r\n", event->op, blevel);
-		wxe_dispatch(*event);
-	      } else {
-		gl_dispatch(event->op,event->buffer,event->caller,event->bin);
-	      }
-	      erl_drv_mutex_lock(wxe_batch_locker_m);
-	      break;
-	    }
-	    event->Delete();
-	  }
-      } else {
-	if((list_type == WXE_STORED) || (blevel <= 0 && list_type == WXE_NORMAL)) {
-	  // erl_drv_mutex_unlock(wxe_batch_locker_m); should be called after
-	  // whatever cleaning is necessary
-	  return blevel;
+  wxeCommand *event;
+  if(list_type == WXE_NORMAL) erl_drv_mutex_lock(wxe_batch_locker_m);
+  while(true) {
+    while((event = batch->Get()) != NULL) {
+      if(list_type == WXE_NORMAL) erl_drv_mutex_unlock(wxe_batch_locker_m);
+      switch(event->op) {
+      case -1:
+	break;
+      case WXE_BATCH_END:
+	{--blevel; }
+	break;
+      case WXE_BATCH_BEGIN:
+	{blevel++; }
+	break;
+      case WXE_DEBUG_PING:
+	// When in debugger we don't want to hang waiting for a BATCH_END
+	// that never comes, because a breakpoint have hit.
+	ping++;
+	if(ping > 2)
+	  blevel = 0;
+	break;
+      case WXE_CB_RETURN:
+	if(event->len > 0) {
+	  cb_buff = (char *) driver_alloc(event->len);
+	  memcpy(cb_buff, event->buffer, event->len);
 	}
-	// sleep until something happens
-	//fprintf(stderr, "%s:%d sleep %d %d %d %d \r\n", __FILE__, __LINE__, batch->size(), callback_returned, blevel, is_callback);fflush(stderr);
-	wxe_batch_caller++;
-	while(batch->size() == 0) {
-	  erl_drv_cond_wait(wxe_batch_locker_c, wxe_batch_locker_m);
+	event->Delete();
+	return blevel;
+      default:
+	if(event->op < OPENGL_START) {
+	  // fprintf(stderr, "  c %d (%d) \r\n", event->op, blevel);
+	  wxe_dispatch(*event);
+	} else {
+	  gl_dispatch(event->op,event->buffer,event->caller,event->bin);
 	}
+	break;
+      }
+      event->Delete();
+      if(list_type == WXE_NORMAL) erl_drv_mutex_lock(wxe_batch_locker_m);
+    }
+    if(list_type == WXE_STORED)
+      return blevel;
+    if(blevel <= 0) { // list_type == WXE_NORMAL
+      if(wxe_queue->m_old) {
+	driver_free(wxe_queue->m_old);
+	wxe_queue->m_old = NULL;
       }
+      erl_drv_mutex_unlock(wxe_batch_locker_m);
+      return blevel;
     }
+    // sleep until something happens
+    //fprintf(stderr, "%s:%d sleep %d %d\r\n", __FILE__, __LINE__, batch->m_n, blevel);fflush(stderr);
+    wxe_needs_signal = 1;
+    while(batch->m_n == 0) {
+      erl_drv_cond_wait(wxe_batch_locker_c, wxe_batch_locker_m);
+    }
+    wxe_needs_signal = 0;
+  }
 }
 
-void WxeApp::dispatch_cb(wxList * batch, wxList * temp, ErlDrvTermData process) {
-  int callback_returned = 0;
+void WxeApp::dispatch_cb(wxeFifo * batch, wxeFifo * temp, ErlDrvTermData process) {
+  wxeCommand *event;
+  erl_drv_mutex_lock(wxe_batch_locker_m);
   while(true) {
-    if (batch->size() > 0) {
-      for( wxList::compatibility_iterator node = batch->GetFirst();
-	   node;
-	   node = batch->GetFirst())
-	{
-	  wxeCommand *event = (wxeCommand *)node->GetData();
-	  wxeMemEnv *memenv = getMemEnv(event->port);
-	  batch->Erase(node);
-	  // fprintf(stderr, "  Ev %d %lu\r\n", event->op, event->caller);
-	  if(event->caller == process ||  // Callbacks from CB process only
-	     event->op == WXE_CB_START || // Event callback start change process
-	     event->op == WXE_CB_DIED ||  // Event callback process died
-	     // Allow connect_cb during CB i.e. msg from wxe_server.
-	     (memenv && event->caller == memenv->owner))
-	    {
-	      switch(event->op) {
-	      case WXE_BATCH_END:
-	      case WXE_BATCH_BEGIN:
-	      case WXE_DEBUG_PING:
-		break;
-	      case WXE_CB_RETURN:
-		if(event->len > 0) {
-		  cb_buff = (char *) driver_alloc(event->len);
-		  memcpy(cb_buff, event->buffer, event->len);
-		}  // continue
-	      case WXE_CB_DIED:
-		callback_returned = 1;
-		return;
-	      case WXE_CB_START:
-		// CB start from now accept message from CB process only
-		process = event->caller;
-		break;
-	      default:
-		erl_drv_mutex_unlock(wxe_batch_locker_m);
-		size_t start=temp->GetCount();
-		if(event->op < OPENGL_START) {
-		  // fprintf(stderr, "  cb %d \r\n", event->op);
-		  wxe_dispatch(*event);
-		} else {
-		  gl_dispatch(event->op,event->buffer,event->caller,event->bin);
-		}
-		erl_drv_mutex_lock(wxe_batch_locker_m);
-		if(temp->GetCount() > start) {
-		  // We have recursed dispatch_cb and messages for this
-		  // callback may be saved on temp list move them
-		  // to orig list
-		  for(wxList::compatibility_iterator node = temp->Item(start);
-		      node;
-		      node = node->GetNext()) {
-		    wxeCommand *ev = (wxeCommand *)node->GetData();
-		    if(ev->caller == process) {
-		      batch->Append(ev);
-		      temp->Erase(node);
-		    }
-		  }
-		}
-		if(callback_returned)
-		  return;
-		break;
+    while((event = batch->Get()) != NULL) {
+      erl_drv_mutex_unlock(wxe_batch_locker_m);
+      wxeMemEnv *memenv = getMemEnv(event->port);
+      // fprintf(stderr, "  Ev %d %lu\r\n", event->op, event->caller);
+      if(event->caller == process ||  // Callbacks from CB process only
+	 event->op == WXE_CB_START || // Event callback start change process
+	 event->op == WXE_CB_DIED ||  // Event callback process died
+	 // Allow connect_cb during CB i.e. msg from wxe_server.
+	 (memenv && event->caller == memenv->owner)) {
+	switch(event->op) {
+	case -1:
+	case WXE_BATCH_END:
+	case WXE_BATCH_BEGIN:
+	case WXE_DEBUG_PING:
+	  break;
+	case WXE_CB_RETURN:
+	  if(event->len > 0) {
+	    cb_buff = (char *) driver_alloc(event->len);
+	    memcpy(cb_buff, event->buffer, event->len);
+	  }  // continue
+	case WXE_CB_DIED:
+	  event->Delete();
+	  return;
+	case WXE_CB_START:
+	  // CB start from now accept message from CB process only
+	  process = event->caller;
+	  break;
+	default:
+	  size_t start=temp->m_n;
+	  if(event->op < OPENGL_START) {
+	    // fprintf(stderr, "  cb %d \r\n", event->op);
+	    wxe_dispatch(*event);
+	  } else {
+	    gl_dispatch(event->op,event->buffer,event->caller,event->bin);
+	  }
+	  if(temp->m_n > start) {
+	    erl_drv_mutex_lock(wxe_batch_locker_m);
+	    // We have recursed dispatch_cb and messages for this
+	    // callback may be saved on temp list move them
+	    // to orig list
+	    for(unsigned int i=start; i < temp->m_n; i++) {
+	      wxeCommand *ev = &temp->m_q[(temp->m_first+i) % temp->m_max];
+	      if(ev->caller == process) {
+		batch->Append(ev);
 	      }
-	      event->Delete();
-	    } else {
-	    // fprintf(stderr, "  save %d \r\n", event->op);
-	    temp->Append(event);
+	    }
+	    erl_drv_mutex_unlock(wxe_batch_locker_m);
 	  }
+	  break;
 	}
-    } else {
-      if(callback_returned) {
-	return;
-      }
-      // sleep until something happens
-      //fprintf(stderr, "%s:%d sleep %d %d %d %d \r\n", __FILE__, __LINE__, batch->size(), callback_returned, blevel, is_callback);fflush(stderr);
-      while(batch->size() == 0) {
-	erl_drv_cond_wait(wxe_batch_locker_c, wxe_batch_locker_m);
+	event->Delete();
+      } else {
+	// fprintf(stderr, "  save %d %lu\r\n", event->op, event->caller);
+	temp->Append(event);
       }
+      erl_drv_mutex_lock(wxe_batch_locker_m);
     }
+    // sleep until something happens
+    // fprintf(stderr, "%s:%d sleep %d %d\r\n", __FILE__, __LINE__,
+    //         batch->m_n, temp->m_n);fflush(stderr);
+    wxe_needs_signal = 1;
+    while(batch->m_n == 0) {
+      erl_drv_cond_wait(wxe_batch_locker_c, wxe_batch_locker_m);
+    }
+    wxe_needs_signal = 0;
   }
 }
-
 /* Memory handling */
 
 void WxeApp::newMemEnv(wxeMetaCommand& Ecmd) {
diff --git a/lib/wx/c_src/wxe_impl.h b/lib/wx/c_src/wxe_impl.h
index 57bf2e2dba..b251d5f0f9 100644
--- a/lib/wx/c_src/wxe_impl.h
+++ b/lib/wx/c_src/wxe_impl.h
@@ -46,7 +46,8 @@ typedef wxString wxeLocaleC;
 
 #define WXE_NOT_INITIATED 0
 #define WXE_INITIATED     1
-#define WXE_EXITED        2
+#define WXE_EXITING       2
+#define WXE_EXITED        3
 #define WXE_ERROR        -1
 
 void send_msg(const char *, const wxString *);   // For debugging and error msgs
@@ -60,8 +61,8 @@ public:
 #endif
   void shutdown(wxeMetaCommand& event);
 
-  int dispatch(wxList *, int, int);
-  void dispatch_cb(wxList * batch, wxList * temp, ErlDrvTermData process);
+  int dispatch(wxeFifo *, int, int);
+  void dispatch_cb(wxeFifo * batch, wxeFifo * temp, ErlDrvTermData process);
 
   void wxe_dispatch(wxeCommand& event);
 
@@ -93,7 +94,7 @@ public:
 
   int recurse_level;
   wxList * delayed_cleanup;
-  wxList * delayed_delete;
+  wxeFifo * delayed_delete;
   // Temp container for callbacks
   char *cb_buff;
   int  cb_len;
diff --git a/lib/wx/c_src/wxe_return.cpp b/lib/wx/c_src/wxe_return.cpp
index aebf6bae1b..f29c8eff4a 100644
--- a/lib/wx/c_src/wxe_return.cpp
+++ b/lib/wx/c_src/wxe_return.cpp
@@ -19,11 +19,6 @@
 
 #include "wxe_return.h"
 
-// see http://docs.wxwidgets.org/stable/wx_wxarray.html#arraymacros
-// this is a magic incantation which must be done!
-#include <wx/arrimpl.cpp> 
-WX_DEFINE_OBJARRAY(wxErlDrvTermDataArray);
-
 #define INLINE
 
 wxeReturn::wxeReturn (ErlDrvTermData   _port,
@@ -31,79 +26,87 @@ wxeReturn::wxeReturn (ErlDrvTermData   _port,
 		      bool             _isResult) {
     port    = _port;
     caller  = _caller;
-    
+
     isResult = _isResult;
-    
-     if (isResult) {
-         addAtom("_wxe_result_");
-     }
+    rtb = buff;
+    rt_max = RT_BUFF_SZ;
+    rt_n = 0;
+    if (isResult) {
+      addAtom("_wxe_result_");
+    }
+}
+
+//clear everything so we can re-use if we want
+void wxeReturn::reset() {
+  rt_n = 0;
+  temp_float.empty();
 }
 
 wxeReturn::~wxeReturn () {
-    //depending on which version of wxArray we use, we may have to clear it ourselves.
+  if(rtb != buff)
+    driver_free(rtb);
 }
 
-int wxeReturn::send() {      
-    if ((rt.GetCount() == 2 && isResult) || rt.GetCount() == 0)
-      return 1;  // not a call bail out
-    
-    if (isResult) {
-        addTupleCount(2);
-    }    
+int wxeReturn::send() {
+  if ((rt_n == 2 && isResult) || rt_n == 0)
+    return 1;  // not a call bail out
 
-    // rt to array
-    unsigned int rtLength = rt.GetCount(); //signed int
+  if (isResult) {
+    addTupleCount(2);
+  }
 
-    size_t size = sizeof(ErlDrvTermData)*(rtLength);
-    
-    ErlDrvTermData* rtData = (ErlDrvTermData *) driver_alloc(size);
-    for (unsigned int i=0; i < rtLength; i++) {
-        rtData[i] = rt[i];
-    }
- 
-    int res = erl_drv_send_term(port, caller, rtData, rtLength);
-    driver_free(rtData);
+  int res = erl_drv_send_term(port, caller, rtb, rt_n);
 
 #ifdef DEBUG
-    if(res == -1) {
-      fprintf(stderr, "Failed to send return or event msg\r\n");
-    }
+  if(res == -1) {
+    fprintf(stderr, "Failed to send return or event msg\r\n");
+  }
 #endif
 
-    reset();
-    return res;
+  reset();
+  return res;
 }
 
-//clear everything so we can re-use if we want
- void wxeReturn::reset() {
-     rt.empty();
-     temp_float.empty();
+INLINE
+unsigned  int wxeReturn::size() {
+  return rt_n;
 }
 
+
 INLINE
-unsigned  int wxeReturn::size() {
-     return rt.GetCount();
- }
- 
+void wxeReturn::ensureFloatCount(size_t n) {
+  temp_float.Alloc(n);
+}
+
 INLINE
-void wxeReturn::add(ErlDrvTermData type, ErlDrvTermData data) {
-    rt.Add(type);
-    rt.Add(data);
+void wxeReturn::do_add(ErlDrvTermData val) {
+  if(rt_n >= rt_max) {  // realloc
+    rt_max += RT_BUFF_SZ;
+    if(rtb == buff) {
+      rtb = (ErlDrvTermData *) driver_alloc(rt_max * sizeof(ErlDrvTermData));
+      for(int i = 0; i < RT_BUFF_SZ; i++)
+	rtb[i] = buff[i];
+    } else {
+      rtb = (ErlDrvTermData *) driver_realloc(rtb, rt_max * sizeof(ErlDrvTermData));
+    }
+  }
+  rtb[rt_n++] = val;
 }
 
 
-// INLINE 
-// void wxeReturn::addRef(const void *ptr, const char* className) {
-//    unsigned int ref_idx = wxe_app->getRef((void *)ptr, memEnv); 
-//    addRef(ref_idx, className);
-// }
+INLINE
+void wxeReturn::add(ErlDrvTermData type, ErlDrvTermData data) {
+  do_add(type);
+  do_add(data);
+}
+
 
 INLINE 
 void wxeReturn::addRef(const unsigned int ref, const char* className) {
    addAtom("wx_ref");
    addUint(ref);
    addAtom(className);
-   rt.Add(ERL_DRV_NIL);
+   do_add(ERL_DRV_NIL);
    addTupleCount(4);
 }
 
@@ -115,30 +118,30 @@ void wxeReturn::addAtom(const char* atomName) {
 
 INLINE 
 void wxeReturn::addBinary(const char* buf, const size_t size) {
-    rt.Add(ERL_DRV_BUF2BINARY);
-    rt.Add((ErlDrvTermData)buf);
-    rt.Add((ErlDrvTermData)size);
+    do_add(ERL_DRV_BUF2BINARY);
+    do_add((ErlDrvTermData)buf);
+    do_add((ErlDrvTermData)size);
 }
 
 INLINE 
 void wxeReturn::addExt2Term(wxeErlTerm *term) {
   if(term) {
-    rt.Add(ERL_DRV_EXT2TERM);
-    rt.Add((ErlDrvTermData)term->bin);
-    rt.Add((ErlDrvTermData)term->size);
+    do_add(ERL_DRV_EXT2TERM);
+    do_add((ErlDrvTermData)term->bin);
+    do_add((ErlDrvTermData)term->size);
   } else {
-    rt.Add(ERL_DRV_NIL);
+    do_add(ERL_DRV_NIL);
   }
 }
 
 INLINE
 void wxeReturn::addExt2Term(wxETreeItemData *val) {
   if(val) {
-    rt.Add(ERL_DRV_EXT2TERM);
-    rt.Add((ErlDrvTermData)(val->bin));
-    rt.Add((ErlDrvTermData)(val->size));
+    do_add(ERL_DRV_EXT2TERM);
+    do_add((ErlDrvTermData)(val->bin));
+    do_add((ErlDrvTermData)(val->size));
   } else
-    rt.Add(ERL_DRV_NIL);
+    do_add(ERL_DRV_NIL);
 }
 
 INLINE
@@ -168,8 +171,8 @@ void wxeReturn::addTupleCount(unsigned int n) {
 
 INLINE 
 void wxeReturn::endList(unsigned int n) {
-    rt.Add(ERL_DRV_NIL);
-    add(ERL_DRV_LIST, (ErlDrvTermData)(n+1));
+  do_add(ERL_DRV_NIL);
+  add(ERL_DRV_LIST, (ErlDrvTermData)(n+1));
 }
 
 INLINE 
@@ -222,6 +225,7 @@ INLINE
 void  wxeReturn::add(wxArrayDouble val) {
   unsigned int len = val.GetCount();
 
+  temp_float.Alloc(len);
   for (unsigned int i = 0; i< len; i++) {
     addFloat(val[i]);
   }
diff --git a/lib/wx/c_src/wxe_return.h b/lib/wx/c_src/wxe_return.h
index 80946e2dc6..6729789116 100644
--- a/lib/wx/c_src/wxe_return.h
+++ b/lib/wx/c_src/wxe_return.h
@@ -40,10 +40,7 @@ extern "C" {
 #include <wx/html/htmlcell.h>
 
 
-// #define send() send_term(__FILE__, __LINE__)
-
-// see http://docs.wxwidgets.org/stable/wx_wxarray.html
-WX_DECLARE_OBJARRAY(ErlDrvTermData, wxErlDrvTermDataArray);
+#define RT_BUFF_SZ 64
 
 class wxeReturn {
 
@@ -57,7 +54,6 @@ public:
 
     void add(ErlDrvTermData type, ErlDrvTermData data);
 
-    //  void addRef(const void *ptr, const char* className);
     void addRef(const unsigned int ref, const char* className);
     void addAtom(const char* atomName);
     
@@ -65,8 +61,8 @@ public:
     void addExt2Term(wxeErlTerm * term);
     void addExt2Term(wxETreeItemData * term);
 
-    void addNil() { rt.Add(ERL_DRV_NIL); };
-    
+    void addNil() { do_add(ERL_DRV_NIL); };
+
     void addUint(unsigned int n);
     
     void addInt(int n);
@@ -116,6 +112,10 @@ public:
 
     void add(const wxHtmlLinkInfo &val);
 
+    void do_add(ErlDrvTermData val);
+
+    void ensureFloatCount(size_t n);
+
     int  send();
     
     void reset();
@@ -127,15 +127,17 @@ private:
     inline void  addDate(wxDateTime dateTime);
 
     inline void  addTime(wxDateTime dateTime);
-    
-//    WxeApp*                 wxe_app;
+
     ErlDrvTermData          caller;
     ErlDrvTermData          port;
-//    wxeMemEnv               *memEnv;
-    wxErlDrvTermDataArray   rt;
     wxArrayDouble           temp_float;
     wxMBConvUTF32           utfConverter;
     bool                    isResult;
+
+    unsigned int            rt_max;
+    unsigned int            rt_n;
+    ErlDrvTermData          *rtb;
+    ErlDrvTermData          buff[RT_BUFF_SZ];
 };
 
 #endif	/* _WXE_RETURN_H */
diff --git a/lib/wx/configure.in b/lib/wx/configure.in
index 4c4d4f41a8..fbdddb9220 100644
--- a/lib/wx/configure.in
+++ b/lib/wx/configure.in
@@ -441,19 +441,26 @@ else
     else
 	CWXWIN_PROG=`cygpath -d "$PROGRAMFILES" | cygpath -f - 2>/dev/null`
     fi
-    CWXWIN3=$CWXWIN_PROG/wxWidgets-?.*.*
-    CWXWIN4=$CWXWIN_PROG/wxMSW-?.*.*
-    CWX_DOCUMENTED="/opt/local/pgm/wxMSW-?.*.* /opt/local/pgm/wxWidgets-?.*.*"
+
+    CWXWIN3="$CWXWIN_PROG/wxWidgets-3.*.* $CWXWIN_PROG/wxWidgets-2.*.*"
+    CWXWIN4="$CWXWIN_PROG/wxMSW-3.*.* $CWXWIN_PROG/wxMSW-2.*.*"
+
+    DOC_OPT=/opt/local/pgm
+    CWX_DOCUMENTED="$DOC_OPT/wxWidgets-2.*.* $DOC_OPT/wxMSW-2.*.*"
+    CWX_DOCUMENTED="$DOC_OPT/wxWidgets-3.*.* $DOC_OPT/wxMSW-3.*.* $CWX_DOCUMENTED"
+
     case $ac_cv_sizeof_void_p in
     	 8)
-		CWX_DOCUMENTED="/opt/local64/pgm/wxMSW-?.*.* /opt/local64/pgm/wxWidgets-?.*.* $CWX_DOCUMENTED"
+		DOC_OPT64=/opt/local64/pgm
+		CWX_DOCUMENTED="$DOC_OPT64/wxWidgets-2.*.* $DOC_OPT64/wxMSW-2.*.* $CWX_DOCUMENTED"
+		CWX_DOCUMENTED="$DOC_OPT64/wxWidgets-3.*.* $DOC_OPT64/wxMSW-3.*.* $CWX_DOCUMENTED"
 		;;
          *)
 		true
 		;;
-    esac	
-			
-    CWXPATH="$CWXWIN0 $CWXWIN1 $CWXWIN2 $CWX_DOCUMENTED $CWXWIN3.* $CWXWIN4.*"
+    esac
+
+    CWXPATH="$CWXWIN0 $CWXWIN1 $CWXWIN2 $CWX_DOCUMENTED $CWXWIN3 $CWXWIN4"
 
     for dir in $CWXPATH; do
         AC_MSG_NOTICE(Checking: [$dir])
diff --git a/lib/wx/examples/demo/demo.erl b/lib/wx/examples/demo/demo.erl
index 2f560096f5..65fb05cd94 100644
--- a/lib/wx/examples/demo/demo.erl
+++ b/lib/wx/examples/demo/demo.erl
@@ -256,9 +256,17 @@ handle_event(#wx{id = Id,
 	    wx_misc:launchDefaultBrowser("http://www.erlang.org/doc/apps/wx/part_frame.html"),
 	    {noreply, State};
 	?wxID_ABOUT ->
+	    WxWVer = io_lib:format("~p.~p.~p.~p",
+				   [?wxMAJOR_VERSION, ?wxMINOR_VERSION,
+				    ?wxRELEASE_NUMBER, ?wxSUBRELEASE_NUMBER]),
+	    application:load(wx),
+	    {ok, WxVsn} = application:get_key(wx,  vsn),
 	    AboutString =
 		"Demo of various widgets\n"
-		"Authors: Olle & Dan",
+		"Authors: Olle & Dan\n\n" ++
+		"Frontend: wx-" ++ WxVsn ++
+		"\nBackend: wxWidgets-" ++ lists:flatten(WxWVer),
+
 	    wxMessageDialog:showModal(wxMessageDialog:new(State#state.win, AboutString,
 							  [{style,
 							    ?wxOK bor
diff --git a/lib/wx/examples/demo/demo_html_tagger.erl b/lib/wx/examples/demo/demo_html_tagger.erl
index 7bb6736fdc..b119f0e226 100644
--- a/lib/wx/examples/demo/demo_html_tagger.erl
+++ b/lib/wx/examples/demo/demo_html_tagger.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2009-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2009-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -267,8 +267,10 @@ normalize_toks(Toks) ->
 
 normalize_tok(Tok) ->
     %% this is the portable way ...
-    [{_,Type},{_,Line},{_,Col},{_,Txt}] = 
-	erl_scan:token_info(Tok, [category,line,column,text]),
+    Type = erl_scan:category(Tok),
+    Line = erl_scan:line(Tok),
+    Col = erl_scan:column(Tok),
+    Txt = erl_scan:text(Tok),
     Val  = {Type,{Line,Col},Txt},
     %% io:format("here:X=~p ~p~n",[Tok,Val]),
     Val.
diff --git a/lib/wx/include/wx.hrl b/lib/wx/include/wx.hrl
index 348daf64ce..97cb689374 100644
--- a/lib/wx/include/wx.hrl
+++ b/lib/wx/include/wx.hrl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2008-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2008-2015. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -54,7 +54,9 @@
 -type wxListEventType() :: command_list_begin_drag | command_list_begin_rdrag | command_list_begin_label_edit | command_list_end_label_edit | command_list_delete_item | command_list_delete_all_items | command_list_key_down | command_list_insert_item | command_list_col_click | command_list_col_right_click | command_list_col_begin_drag | command_list_col_dragging | command_list_col_end_drag | command_list_item_selected | command_list_item_deselected | command_list_item_right_click | command_list_item_middle_click | command_list_item_activated | command_list_item_focused | command_list_cache_hint.
 -type wxList() :: #wxList{}. %% Callback event: {@link wxListEvent}
 
--record(wxNotebook, {type :: wxNotebookEventType()}). %% Callback event: {@link wxNotebookEvent}
+-record(wxNotebook,{type :: wxNotebookEventType(), %% Callback event: {@link wxNotebookEvent}
+	nSel :: integer(),
+	nOldSel :: integer()}).
 -type wxNotebookEventType() :: command_notebook_page_changed | command_notebook_page_changing.
 -type wxNotebook() :: #wxNotebook{}. %% Callback event: {@link wxNotebookEvent}
 
@@ -86,7 +88,9 @@
 -type wxWindowDestroyEventType() :: destroy.
 -type wxWindowDestroy() :: #wxWindowDestroy{}. %% Callback event: {@link wxWindowDestroyEvent}
 
--record(wxCalendar, {type :: wxCalendarEventType()}). %% Callback event: {@link wxCalendarEvent}
+-record(wxCalendar,{type :: wxCalendarEventType(), %% Callback event: {@link wxCalendarEvent}
+	wday :: wx:wx_enum(),
+	date :: wx:wx_datetime()}).
 -type wxCalendarEventType() :: calendar_sel_changed | calendar_day_changed | calendar_month_changed | calendar_year_changed | calendar_doubleclicked | calendar_weekday_clicked.
 -type wxCalendar() :: #wxCalendar{}. %% Callback event: {@link wxCalendarEvent}
 
@@ -100,15 +104,19 @@
 -type wxScrollEventType() :: scroll_top | scroll_bottom | scroll_lineup | scroll_linedown | scroll_pageup | scroll_pagedown | scroll_thumbtrack | scroll_thumbrelease | scroll_changed.
 -type wxScroll() :: #wxScroll{}. %% Callback event: {@link wxScrollEvent}
 
--record(wxMenu, {type :: wxMenuEventType()}). %% Callback event: {@link wxMenuEvent}
+-record(wxMenu,{type :: wxMenuEventType(), %% Callback event: {@link wxMenuEvent}
+	menuId :: integer(),
+	menu :: wxMenu:wxMenu()}).
 -type wxMenuEventType() :: menu_open | menu_close | menu_highlight.
 -type wxMenu() :: #wxMenu{}. %% Callback event: {@link wxMenuEvent}
 
--record(wxContextMenu, {type :: wxContextMenuEventType()}). %% Callback event: {@link wxContextMenuEvent}
+-record(wxContextMenu,{type :: wxContextMenuEventType(), %% Callback event: {@link wxContextMenuEvent}
+	pos :: {X::integer(), Y::integer()}}).
 -type wxContextMenuEventType() :: context_menu.
 -type wxContextMenu() :: #wxContextMenu{}. %% Callback event: {@link wxContextMenuEvent}
 
--record(wxShow, {type :: wxShowEventType()}). %% Callback event: {@link wxShowEvent}
+-record(wxShow,{type :: wxShowEventType(), %% Callback event: {@link wxShowEvent}
+	show :: boolean()}).
 -type wxShowEventType() :: show.
 -type wxShow() :: #wxShow{}. %% Callback event: {@link wxShowEvent}
 
@@ -117,7 +125,10 @@
 -type wxSpinEventType() :: command_spinctrl_updated | spin_up | spin_down | spin.
 -type wxSpin() :: #wxSpin{}. %% Callback event: {@link wxSpinEvent}
 
--record(wxSetCursor, {type :: wxSetCursorEventType()}). %% Callback event: {@link wxSetCursorEvent}
+-record(wxSetCursor,{type :: wxSetCursorEventType(), %% Callback event: {@link wxSetCursorEvent}
+	x :: integer(),
+	y :: integer(),
+	cursor :: wxCursor:wxCursor()}).
 -type wxSetCursorEventType() :: set_cursor.
 -type wxSetCursor() :: #wxSetCursor{}. %% Callback event: {@link wxSetCursorEvent}
 
@@ -126,7 +137,9 @@
 -type wxFontPickerEventType() :: command_fontpicker_changed.
 -type wxFontPicker() :: #wxFontPicker{}. %% Callback event: {@link wxFontPickerEvent}
 
--record(wxScrollWin, {type :: wxScrollWinEventType()}). %% Callback event: {@link wxScrollWinEvent}
+-record(wxScrollWin,{type :: wxScrollWinEventType(), %% Callback event: {@link wxScrollWinEvent}
+	commandInt :: integer(),
+	extraLong :: integer()}).
 -type wxScrollWinEventType() :: scrollwin_top | scrollwin_bottom | scrollwin_lineup | scrollwin_linedown | scrollwin_pageup | scrollwin_pagedown | scrollwin_thumbtrack | scrollwin_thumbrelease.
 -type wxScrollWin() :: #wxScrollWin{}. %% Callback event: {@link wxScrollWinEvent}
 
@@ -147,7 +160,8 @@
 -type wxFileDirPickerEventType() :: command_filepicker_changed | command_dirpicker_changed.
 -type wxFileDirPicker() :: #wxFileDirPicker{}. %% Callback event: {@link wxFileDirPickerEvent}
 
--record(wxFocus, {type :: wxFocusEventType()}). %% Callback event: {@link wxFocusEvent}
+-record(wxFocus,{type :: wxFocusEventType(), %% Callback event: {@link wxFocusEvent}
+	win :: wxWindow:wxWindow()}).
 -type wxFocusEventType() :: set_focus | kill_focus.
 -type wxFocus() :: #wxFocus{}. %% Callback event: {@link wxFocusEvent}
 
@@ -225,7 +239,8 @@
 -type wxSizeEventType() :: size.
 -type wxSize() :: #wxSize{}. %% Callback event: {@link wxSizeEvent}
 
--record(wxIconize, {type :: wxIconizeEventType()}). %% Callback event: {@link wxIconizeEvent}
+-record(wxIconize,{type :: wxIconizeEventType(), %% Callback event: {@link wxIconizeEvent}
+	iconized :: boolean()}).
 -type wxIconizeEventType() :: iconize.
 -type wxIconize() :: #wxIconize{}. %% Callback event: {@link wxIconizeEvent}
 
@@ -289,7 +304,12 @@
 -type wxCommandEventType() :: command_button_clicked | command_checkbox_clicked | command_choice_selected | command_listbox_selected | command_listbox_doubleclicked | command_text_updated | command_text_enter | command_menu_selected | command_slider_updated | command_radiobox_selected | command_radiobutton_selected | command_scrollbar_updated | command_vlbox_selected | command_combobox_selected | command_tool_rclicked | command_tool_enter | command_checklistbox_toggled | command_togglebutton_clicked | command_left_click | command_left_dclick | command_right_click | command_set_focus | command_kill_focus | command_enter.
 -type wxCommand() :: #wxCommand{}. %% Callback event: {@link wxCommandEvent}
 
--record(wxJoystick, {type :: wxJoystickEventType()}). %% Callback event: {@link wxJoystickEvent}
+-record(wxJoystick,{type :: wxJoystickEventType(), %% Callback event: {@link wxJoystickEvent}
+	pos :: {X::integer(), Y::integer()},
+	zPosition :: integer(),
+	buttonChange :: integer(),
+	buttonState :: integer(),
+	joyStick :: integer()}).
 -type wxJoystickEventType() :: joy_button_down | joy_button_up | joy_move | joy_zmove.
 -type wxJoystick() :: #wxJoystick{}. %% Callback event: {@link wxJoystickEvent}
 
@@ -297,7 +317,9 @@
 -type wxQueryNewPaletteEventType() :: query_new_palette.
 -type wxQueryNewPalette() :: #wxQueryNewPalette{}. %% Callback event: {@link wxQueryNewPaletteEvent}
 
--record(wxMove, {type :: wxMoveEventType()}). %% Callback event: {@link wxMoveEvent}
+-record(wxMove,{type :: wxMoveEventType(), %% Callback event: {@link wxMoveEvent}
+	pos :: {X::integer(), Y::integer()},
+	rect :: {X::integer(), Y::integer(), W::integer(), H::integer()}}).
 -type wxMoveEventType() :: move.
 -type wxMove() :: #wxMove{}. %% Callback event: {@link wxMoveEvent}
 
@@ -1883,9 +1905,9 @@
 -define(wxCURSOR_WAIT, 24).
 -define(wxCURSOR_WATCH, 25).
 -define(wxCURSOR_BLANK, 26).
--define(wxCURSOR_DEFAULT, 27).
--define(wxCURSOR_ARROWWAIT, 28).
--define(wxCURSOR_MAX, 29).
+-define(wxCURSOR_DEFAULT, wxe_util:get_const(wxCURSOR_DEFAULT)).
+-define(wxCURSOR_ARROWWAIT, wxe_util:get_const(wxCURSOR_ARROWWAIT)).
+-define(wxCURSOR_MAX, wxe_util:get_const(wxCURSOR_MAX)).
 % From "generic_2laywin.h"
 -define(wxLAYOUT_QUERY, 256).
 -define(wxLAYOUT_MRU_LENGTH, 16).
diff --git a/lib/wx/src/wx_object.erl b/lib/wx/src/wx_object.erl
index 80f8937656..2c016e7951 100644
--- a/lib/wx/src/wx_object.erl
+++ b/lib/wx/src/wx_object.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2008-2011. All Rights Reserved.
+%% Copyright Ericsson AB 2008-2014. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -102,6 +102,7 @@
 %% API
 -export([start/3, start/4,
 	 start_link/3, start_link/4,
+	 stop/1, stop/3,
 	 call/2, call/3,
 	 cast/2,
 	 reply/2,
@@ -215,6 +216,42 @@ gen_response({ok, Pid}) ->
 gen_response(Reply) ->
     Reply.
 
+%% @spec (Ref::wxObject()|atom()|pid()) -> ok
+%% @doc Stops a generic wx_object server with reason 'normal'.
+%% Invokes terminate(Reason,State) in the server. The call waits until
+%% the process is terminated. If the process does not exist, an
+%% exception is raised.
+stop(Ref = #wx_ref{state=Pid}) when is_pid(Pid) ->
+    try
+	gen:stop(Pid)
+    catch _:ExitReason ->
+	    erlang:error({ExitReason, {?MODULE, stop, [Ref]}})
+    end;
+stop(Name) when is_atom(Name) orelse is_pid(Name) ->
+    try
+	gen:stop(Name)
+    catch _:ExitReason ->
+	    erlang:error({ExitReason, {?MODULE, stop, [Name]}})
+    end.
+
+%% @spec (Ref::wxObject()|atom()|pid(), Reason::term(), Timeout::timeout()) -> ok
+%% @doc Stops a generic wx_object server with the given Reason.
+%% Invokes terminate(Reason,State) in the server. The call waits until
+%% the process is terminated. If the call times out, or if the process
+%% does not exist, an exception is raised.
+stop(Ref = #wx_ref{state=Pid}, Reason, Timeout) when is_pid(Pid) ->
+    try
+	gen:stop(Pid, Reason, Timeout)
+    catch _:ExitReason ->
+	    erlang:error({ExitReason, {?MODULE, stop, [Ref, Reason, Timeout]}})
+    end;
+stop(Name, Reason, Timeout) when is_atom(Name) orelse is_pid(Name) ->
+    try
+	gen:stop(Name, Reason, Timeout)
+    catch _:ExitReason ->
+	    erlang:error({ExitReason, {?MODULE, stop, [Name, Reason, Timeout]}})
+    end.
+
 %% @spec (Ref::wxObject()|atom()|pid(), Request::term()) -> term()
 %% @doc Make a call to a wx_object server.
 %% The call waits until it gets a result.
@@ -563,22 +600,10 @@ opt(_, []) ->
 %% @hidden
 debug_options(Name, Opts) ->
     case opt(debug, Opts) of
-	{ok, Options} -> dbg_options(Name, Options);
-	_ -> dbg_options(Name, [])
+	{ok, Options} -> dbg_opts(Name, Options);
+	_ -> []
     end.
 %% @hidden
-dbg_options(Name, []) ->
-    Opts = 
-	case init:get_argument(generic_debug) of
-	    error ->
-		[];
-	    _ ->
-		[log, statistics]
-	end,
-    dbg_opts(Name, Opts);
-dbg_options(Name, Opts) ->
-    dbg_opts(Name, Opts).
-%% @hidden
 dbg_opts(Name, Opts) ->
     case catch sys:debug_options(Opts) of
 	{'EXIT',_} ->
diff --git a/lib/wx/test/wx_basic_SUITE.erl b/lib/wx/test/wx_basic_SUITE.erl
index e3bbb21a23..2a17cc3ab9 100644
--- a/lib/wx/test/wx_basic_SUITE.erl
+++ b/lib/wx/test/wx_basic_SUITE.erl
@@ -271,13 +271,19 @@ wx_misc(_Config) ->
     wx:destroy().
 
 
-%% Check that all the data_types works in communication 
+%% Check that all the data_types works in communication
 %% between erlang and c++ thread.
 data_types(TestInfo) when is_atom(TestInfo) -> wx_test_lib:tc_info(TestInfo);
 data_types(_Config) ->
     Wx = ?mr(wx_ref, wx:new()),
-    
+
     Frame = wxFrame:new(Wx, 1, "Data Types"),
+    wxFrame:connect(Frame, show),
+    wxFrame:show(Frame),
+    receive #wx{event=#wxShow{}} -> ok
+    after 1000 -> exit(show_timeout)
+    end,
+
     CDC = wxClientDC:new(Frame),
 
     %% From wx.erl
@@ -292,16 +298,31 @@ data_types(_Config) ->
     ?m(ok, wxDC:setUserScale(CDC, 123.45, 234.67)),
     ?m({123.45,234.67}, wxDC:getUserScale(CDC)),
 
+    %% Array of doubles
+    try wxGraphicsContext:create(CDC) of
+	GC ->
+	    wxGraphicsContext:setFont(GC, ?wxITALIC_FONT, {0, 0, 50}),
+	    Ws = wxGraphicsContext:getPartialTextExtents(GC, "a String With More Than 16 Characters"),
+	    _ = lists:foldl(fun(Width, {Index, Acc}) ->
+				    if Width >= Acc, Width < 500 -> {Index+1, Width};
+				       true -> throw({bad_float, Width, Index, Acc})
+				    end
+			    end, {0,0.0}, Ws),
+	    ok
+    catch _:_ -> %% GC not supported on this platform
+	    ok
+    end,
+
     %% Colors input is 3 or 4 tuple, returns are 4 tuples
     ?m(ok, wxDC:setTextForeground(CDC, {100,10,1})),
     ?m({100,10,1,255}, wxDC:getTextForeground(CDC)),
     ?m(ok, wxDC:setTextForeground(CDC, {100,10,1,43})),
     ?m({100,10,1,43}, wxDC:getTextForeground(CDC)),
 
-    %% Bool 
+    %% Bool
     ?m(ok, wxDC:setAxisOrientation(CDC, true, false)),
     ?m(true, is_boolean(wxDC:isOk(CDC))),
-    
+
     %% wxCoord 
     ?m(true, is_integer(wxDC:maxX(CDC))),
     
@@ -309,7 +330,7 @@ data_types(_Config) ->
     ?m({_,_}, wxWindow:getSize(Frame)),
 
     %% DateTime 
-    DateTime = {Date, _Time} = calendar:now_to_datetime(erlang:now()),
+    DateTime = {Date, _Time} = calendar:now_to_datetime(os:timestamp()),
     io:format("DateTime ~p ~n",[DateTime]),
     Cal = ?mt(wxCalendarCtrl, wxCalendarCtrl:new(Frame, ?wxID_ANY, [{date,DateTime}])),
     ?m({Date,_}, wxCalendarCtrl:getDate(Cal)),
diff --git a/lib/wx/test/wx_class_SUITE.erl b/lib/wx/test/wx_class_SUITE.erl
index b127e6b71d..50b045a30b 100644
--- a/lib/wx/test/wx_class_SUITE.erl
+++ b/lib/wx/test/wx_class_SUITE.erl
@@ -71,7 +71,7 @@ calendarCtrl(Config) ->
     Panel = wxPanel:new(Frame),
     Sz = wxBoxSizer:new(?wxVERTICAL),
 
-    {YMD={_,_,Day},_} = DateTime = calendar:now_to_datetime(erlang:now()),
+    {YMD={_,_,Day},_} = DateTime = calendar:now_to_datetime(os:timestamp()),
     Cal = ?mt(wxCalendarCtrl, wxCalendarCtrl:new(Panel, ?wxID_ANY,
 						 [{date,DateTime}
 						 ])),
@@ -231,8 +231,15 @@ staticBoxSizer(Config) ->
 
 
 clipboard(TestInfo) when is_atom(TestInfo) -> wx_test_lib:tc_info(TestInfo);
-clipboard(_Config) ->
-    wx:new(),
+clipboard(Config) ->
+    Wx = wx:new(),
+    Frame = wxFrame:new(Wx, ?wxID_ANY, "Main Frame"),
+    Ctrl = wxTextCtrl:new(Frame, ?wxID_ANY, [{size, {600,400}}, {style, ?wxTE_MULTILINE}]),
+    wxTextCtrl:connect(Ctrl, command_text_copy, [{skip, true}]),
+    wxTextCtrl:connect(Ctrl, command_text_cut, [{skip, true}]),
+    wxTextCtrl:connect(Ctrl, command_text_paste, [{skip, true}]),
+    wxWindow:show(Frame),
+
     CB = ?mt(wxClipboard, wxClipboard:get()),
     wxClipboard:usePrimarySelection(CB),
     ?m(false, wx:is_null(CB)),
@@ -271,7 +278,8 @@ clipboard(_Config) ->
     ?log("Flushing ~n",[]),
     wxClipboard:flush(CB),
     ?log("Stopping ~n",[]),
-    ok.
+    wx_test_lib:wx_destroy(Frame,Config).
+
 
 helpFrame(TestInfo) when is_atom(TestInfo) -> wx_test_lib:tc_info(TestInfo);
 helpFrame(Config) ->
@@ -279,10 +287,13 @@ helpFrame(Config) ->
     MFrame = wx:batch(fun() ->
 			      MFrame = wxFrame:new(Wx, ?wxID_ANY, "Main Frame"),
 			      wxPanel:new(MFrame, [{size, {600,400}}]),
+			      wxFrame:connect(MFrame, show),
 			      wxWindow:show(MFrame),
 			      MFrame
 		      end),
-    timer:sleep(9),
+    receive #wx{event=#wxShow{}} -> ok
+    after 1000 -> exit(show_timeout)
+    end,
 
     {X0, Y0} = wxWindow:getScreenPosition(MFrame),
     {X, Y, W,H} = wxWindow:getScreenRect(MFrame),
@@ -433,15 +444,16 @@ radioBox(Config) ->
     Frame = wxFrame:new(Wx, ?wxID_ANY, "Frame"),
 
     TrSortRadioBox = wxRadioBox:new(Frame, ?wxID_ANY, "Sort by:",
-				    {100, 100},{100, 100}, ["Timestamp"]),
+				    {100, 100},{100, 100},
+				    ["Timestamp", "Session", "FooBar"]),
 
     io:format("TrSortRadioBox ~p ~n", [TrSortRadioBox]),
-    %% If I uncomment any of these lines, it will crash
-
-    io:format("~p~n", [catch wxControlWithItems:setClientData(TrSortRadioBox, 0, timestamp)]),
-    %?m(_, wxListBox:append(TrSortRadioBox, "Session Id", session_id)),
-    %?m(_, wxListBox:insert(TrSortRadioBox, "Session Id", 0, session_id)),
-
+    wxRadioBox:setSelection(TrSortRadioBox, 2),
+    wxRadioBox:setItemToolTip(TrSortRadioBox, 2, "Test"),
+    TT0 = ?mt(wxToolTip,wxRadioBox:getItemToolTip(TrSortRadioBox, 0)),
+    TT1 = ?mt(wxToolTip,wxRadioBox:getItemToolTip(TrSortRadioBox, 2)),
+    ?m(true, wx:is_null(TT0)),
+    ?m("Test", wxToolTip:getTip(TT1)),
     wxWindow:show(Frame),
     wx_test_lib:wx_destroy(Frame,Config).
 
@@ -522,7 +534,7 @@ popup(Config) ->
 		      [{shortHelp, "Press Me"}]),
 
     Log = fun(#wx{id=Id, event=Ev}, Obj) ->
-		  io:format("Got ~p from ~p~n", [Id, Ev]),
+		  io:format("Got ~p from ~p~n", [Ev, Id]),
 		  wxEvent:skip(Obj)
 	  end,
     CreatePopup = fun() ->
@@ -545,7 +557,11 @@ popup(Config) ->
 			  Pop
 		  end,
     wxFrame:connect(Frame, command_menu_selected, [{id, 747}]),
+    wxFrame:connect(Frame, show),
     wxFrame:show(Frame),
+    receive #wx{event=#wxShow{}} -> ok
+    after 1000 -> exit(show_timeout)
+    end,
 
     Pop = CreatePopup(),
     Scale = case wx_test_lib:user_available(Config) of
diff --git a/lib/wx/test/wx_event_SUITE.erl b/lib/wx/test/wx_event_SUITE.erl
index f9f8788d8f..6bcd88e4fb 100644
--- a/lib/wx/test/wx_event_SUITE.erl
+++ b/lib/wx/test/wx_event_SUITE.erl
@@ -379,25 +379,29 @@ recursive(Config) ->
     Frame = wxFrame:new(Wx, ?wxID_ANY, "Connect in callback"),
     Panel = wxPanel:new(Frame, []),
     Sz = wxBoxSizer:new(?wxVERTICAL),
-    ListBox = wxListBox:new(Panel, ?wxID_ANY, [{choices, ["foo", "bar", "baz"]}]),
-    wxSizer:add(Sz, ListBox, [{proportion, 1},{flag, ?wxEXPAND}]),
-    wxWindow:setSizer(Panel, Sz),
-    wxListBox:connect(ListBox, command_listbox_selected,
-		      [{callback,
-			fun(#wx{event=#wxCommand{commandInt=Id}}, _) ->
-				io:format("Selected ~p~n",[Id])
-			end}]),
-    wxListBox:setSelection(ListBox, 0),
-    wxListBox:connect(ListBox, size,
-		      [{callback,
-			fun(#wx{event=#wxSize{}}, _) ->
-				io:format("Size init ~n",[]),
-				case wxListBox:getCount(ListBox) > 0 of
-				    true ->  wxListBox:delete(ListBox, 0);
-				    false -> ok
-				end,
-				io:format("Size done ~n",[])
-			end}]),
+    Ctrl1 = wxTextCtrl:new(Panel, ?wxID_ANY, [{size, {300, -1}}]),
+    Ctrl2 = wxTextCtrl:new(Panel, ?wxID_ANY, [{size, {300, -1}}]),
+    wxSizer:add(Sz, Ctrl1, [{proportion, 1},{flag, ?wxEXPAND}]),
+    wxSizer:add(Sz, Ctrl2, [{proportion, 1},{flag, ?wxEXPAND}]),
+    wxWindow:setSizerAndFit(Panel, Sz),
+
+    CB1 =  fun(#wx{event=#wxCommand{cmdString=String}}, _) ->
+		   io:format(" CB1: ~s~n",[String]),
+		   wxTextCtrl:setValue(Ctrl2, io_lib:format("from CB1 ~s", [String]))
+	   end,
+    CB2 =  fun(#wx{event=#wxCommand{cmdString=String}}, _) ->
+		   io:format("    CB2: ~s~n",[String]),
+		   ok
+	   end,
+    wxTextCtrl:connect(Ctrl1, command_text_updated, [{callback,CB1}]),
+    wxTextCtrl:connect(Ctrl2, command_text_updated, [{callback,CB2}]),
+    wxFrame:connect(Frame, size,
+		    [{callback,
+		      fun(#wx{event=#wxSize{size=Size}}, _) ->
+			      io:format("Size init: ~s ~n",[wxTextCtrl:getValue(Ctrl2)]),
+			      wxTextCtrl:setValue(Ctrl1, io_lib:format("Size ~p", [Size])),
+			      io:format("Size done: ~s ~n",[wxTextCtrl:getValue(Ctrl2)])
+		      end}]),
     wxFrame:show(Frame),
     wx_test_lib:flush(),
 
@@ -544,13 +548,14 @@ handler_clean(_Config) ->
     ?mt(wxFrame, Frame1),
     wxWindow:show(Frame1),
     ?m([_|_], lists:sort(wx_test_lib:flush())),
-    ?m({stop,_}, wx_obj_test:stop(Frame1, fun(_) -> normal end)),
+    ?m(ok, wx_obj_test:stop(Frame1)),
     ?m([{terminate,normal}], lists:sort(wx_test_lib:flush())),
 
-    Frame2 = wx_obj_test:start([{init, Init}]),
+    Terminate = fun({Frame,_}) -> wxWindow:destroy(Frame) end,
+    Frame2 = wx_obj_test:start([{init, Init}, {terminate, Terminate}]),
     wxWindow:show(Frame2),
     ?m([_|_], lists:sort(wx_test_lib:flush())),
-    ?m({stop,_}, wx_obj_test:stop(Frame2, fun(_) -> wxWindow:destroy(Frame2), normal end)),
+    ?m(ok, wx_obj_test:stop(Frame2)),
     ?m([{terminate,normal}], lists:sort(wx_test_lib:flush())),
     timer:sleep(104),
     ?m({[],[],[]}, white_box_check_event_handlers()),
diff --git a/lib/wx/test/wx_obj_test.erl b/lib/wx/test/wx_obj_test.erl
index f47f2fbc46..6c648c65f8 100644
--- a/lib/wx/test/wx_obj_test.erl
+++ b/lib/wx/test/wx_obj_test.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2011-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2011-2014. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -18,7 +18,7 @@
 -module(wx_obj_test).
 -include_lib("wx/include/wx.hrl").
 
--export([start/1, stop/2]).
+-export([start/1, stop/1]).
 
 %% wx_object callbacks
 -export([init/1, handle_info/2, terminate/2, code_change/3, handle_call/3,
@@ -29,8 +29,8 @@
 start(Opts) ->
     wx_object:start_link(?MODULE, [{parent, self()}| Opts], []).
 
-stop(Object, Fun) ->
-    wx_object:call(Object, {stop, Fun}).
+stop(Object) ->
+    wx_object:stop(Object).
 
 init(Opts) ->
     Parent = proplists:get_value(parent, Opts),
@@ -61,8 +61,6 @@ handle_event(Event, State = #state{parent=Parent}) ->
 handle_call(What, From, State = #state{user_state=US}) when is_function(What) ->
     Result = What(US),
     {reply, {call, Result, From}, State};
-handle_call({stop, Fun}, From, State = #state{user_state=US}) ->
-    {stop, Fun(US), {stop, From}, State};
 handle_call(What, From, State) ->
     {reply, {call, What, From}, State}.
 
@@ -79,7 +77,13 @@ handle_info(What, State = #state{parent=Pid}) ->
     Pid ! {info, What},
     {noreply, State}.
 
-terminate(What, #state{parent=Pid}) ->
+terminate(What, #state{parent=Pid, opts=Opts, user_state=US}) ->
+    case proplists:get_value(terminate, Opts) of
+	undefined ->
+	    ok;
+	Terminate ->
+	    Terminate(US)
+    end,
     Pid ! {terminate, What},
     ok.
 
diff --git a/lib/wx/vsn.mk b/lib/wx/vsn.mk
index 942d4c0d6f..09fb9f384c 100644
--- a/lib/wx/vsn.mk
+++ b/lib/wx/vsn.mk
@@ -1 +1 @@
-WX_VSN = 1.3.3
+WX_VSN = 1.4
diff --git a/lib/xmerl/src/xmerl.app.src b/lib/xmerl/src/xmerl.app.src
index 45cfe9d250..aed9cf176f 100644
--- a/lib/xmerl/src/xmerl.app.src
+++ b/lib/xmerl/src/xmerl.app.src
@@ -40,5 +40,5 @@
   {registered, []},
   {env, []},
   {applications, [kernel, stdlib]},
-  {runtime_dependencies, ["stdlib-2.0","kernel-3.0","erts-6.0"]}
+  {runtime_dependencies, ["stdlib-2.5","kernel-3.0","erts-6.0"]}
   ]}.
diff --git a/lib/xmerl/src/xmerl.erl b/lib/xmerl/src/xmerl.erl
index 01af183eef..d27e101fe2 100644
--- a/lib/xmerl/src/xmerl.erl
+++ b/lib/xmerl/src/xmerl.erl
@@ -40,6 +40,7 @@
 	 callbacks/1]).
 
 -include("xmerl.hrl").
+-include("xmerl_internal.hrl").
 
 
 %% @spec export(Content, Callback) -> ExportedFormat
@@ -273,7 +274,7 @@ tagdef(Tag,Pos,Parents,Args,CBs) ->
 
 callbacks(Module) ->
     Result = check_inheritance(Module, []),
-%%%     io:format("callbacks = ~p~n", [lists:reverse(Result)]),
+%%%     ?dbg("callbacks = ~p~n", [lists:reverse(Result)]),
     lists:reverse(Result).
 
 callbacks([M|Mods], Visited) ->
@@ -288,7 +289,7 @@ callbacks([], Visited) ->
     Visited.
 
 check_inheritance(M, Visited) ->
-%%%     io:format("calling ~p:'#xml-inheritance#'()~n", [M]),
+%%%     ?dbg("calling ~p:'#xml-inheritance#'()~n", [M]),
     case M:'#xml-inheritance#'() of
 	[] ->
 	    [M|Visited];
@@ -313,7 +314,7 @@ apply_cb([M|Ms], F, Df, Args, A, Ms0) ->
         true -> apply(M, F, Args);
         false -> apply_cb(Ms, F, Df, Args, A, Ms0)
     end;
-apply_cb([], Df, Df, Args, A, _Ms0) ->
+apply_cb([], Df, Df, Args, _A, _Ms0) ->
     exit({unknown_tag, {Df, Args}});
 apply_cb([], F, Df, Args, A, Ms0) ->
     apply_cb(Ms0, Df, Df, [F|Args], A+1).
diff --git a/lib/xmerl/src/xmerl_eventp.erl b/lib/xmerl/src/xmerl_eventp.erl
index ad5c3cbc47..beeab3fa5c 100644
--- a/lib/xmerl/src/xmerl_eventp.erl
+++ b/lib/xmerl/src/xmerl_eventp.erl
@@ -80,17 +80,17 @@ stream_sax(Fname, CallBack, UserState,Options) ->
     HookF=
 	fun(ParsedEntity, S) ->
 		{CBs,Arg}=xmerl_scan:user_state(S),
-%		io:format("stream_sax Arg=~p~n",[Arg]),
+%		?dbg("stream_sax Arg=~p~n",[Arg]),
 		case ParsedEntity of
 		    #xmlComment{} -> % Toss away comments...
 			{[],S};
 		    _ ->  % Use callback module for the rest
-%		io:format("stream_sax ParsedEntity=~p~n",[ParsedEntity]),
+%		?dbg("stream_sax ParsedEntity=~p~n",[ParsedEntity]),
 			case xmerl:export_element(ParsedEntity,CBs,Arg) of
 			    {error,Reason} ->
 				throw({error,Reason});
 			    Resp ->
-%		io:format("stream_sax Resp=~p~n",[Resp]),
+%		?dbg("stream_sax Resp=~p~n",[Resp]),
 				{Resp,xmerl_scan:user_state({CBs,Resp},S)}
 			end
 		end
diff --git a/lib/xmerl/src/xmerl_otpsgml.erl b/lib/xmerl/src/xmerl_otpsgml.erl
index 38688e788f..b9649ecbad 100644
--- a/lib/xmerl/src/xmerl_otpsgml.erl
+++ b/lib/xmerl/src/xmerl_otpsgml.erl
@@ -34,6 +34,7 @@
 		    export_text/1]).
 
 -include("xmerl.hrl").
+-include("xmerl_internal.hrl").
 
 
 '#xml-inheritance#'() -> [xmerl_sgml].
@@ -58,7 +59,7 @@
 %% the scope of a markup is not extended by mistake.)
 
 '#element#'(Tag, Data, Attrs, _Parents, _E) ->
-%    io:format("parents:\n~p\n",[_Parents]),
+%    ?dbg("parents:\n~p\n",[_Parents]),
     case convert_tag(Tag,Attrs) of
 	{false,NewTag,NewAttrs} ->
 	    markup(NewTag, NewAttrs, Data);
@@ -108,7 +109,7 @@ convert_aref([#xmlAttribute{name = href, value = V}|_Rest]) ->
 	    seealso
     end;
 convert_aref([#xmlAttribute{name = K}|Rest]) ->
-    io:format("Warning: ignoring attribute \'~p\' for tag \'a\'\n",[K]),
+    error_logger:warning_msg("ignoring attribute \'~p\' for tag \'a\'\n",[K]),
     convert_aref(Rest).
 convert_aref_attrs(url,Attrs) ->
     Attrs;
@@ -130,7 +131,7 @@ html_content([_H|T]) ->
 % convert_seealso_attrs([#xmlAttribute{name = href, value = V} = A|Rest]) ->
 %     [A#xmlAttribute{name=marker,value=normalize_web_ref(V)}|convert_seealso_attrs(Rest)];
 % convert_seealso_attrs([#xmlAttribute{name = K}|Rest]) ->
-%     io:format("Warning: ignoring attribute \'~p\' for tag \'a\'\n",[K]),
+%     error_logger:warning_msg("ignoring attribute \'~p\' for tag \'a\'\n",[K]),
 %     convert_seealso_attrs(Rest);
 % convert_seealso_attrs([]) ->
 %     [].
diff --git a/lib/xmerl/src/xmerl_regexp.erl b/lib/xmerl/src/xmerl_regexp.erl
index 9303bdb125..b41f55ec3d 100644
--- a/lib/xmerl/src/xmerl_regexp.erl
+++ b/lib/xmerl/src/xmerl_regexp.erl
@@ -41,6 +41,8 @@
 
 -export([setup/1,compile_proc/2]).
 
+-include("xmerl_internal.hrl").
+
 setup(RE0) ->
     RE = setup(RE0, [$^]),
     Pid = spawn(?MODULE,compile_proc,[self(),RE]),
@@ -844,7 +846,7 @@ parse_error(E) -> throw({error,E}).
 re_apply(S, St, {RE,Sc}) ->
     Subs = erlang:make_tuple(Sc, none),		%Make a sub-regexp table.
     Res = re_apply(RE, [], S, St, Subs),
-    %% io:format("~p x ~p -> ~p\n", [RE,S,Res]),
+    %% ?dbg("~p x ~p -> ~p\n", [RE,S,Res]),
     Res.
 
 re_apply(epsilon, More, S, P, Subs) ->		%This always matches
@@ -900,7 +902,7 @@ re_apply({comp_class,Cc}, More, [C|S], P, Subs) ->
 re_apply(C, More, [C|S], P, Subs) when is_integer(C) ->
     re_apply_more(More, S, P+1, Subs);
 re_apply(_RE, _More, _S, _P, _Subs) ->
-    %% io:format("~p : ~p\n", [_RE,_S]),
+    %% ?dbg("~p : ~p\n", [_RE,_S]),
     nomatch.
 
 %% re_apply_more([RegExp], String, Length, SubsExprs) ->
@@ -1121,7 +1123,7 @@ build_nfa(C, N, S, NFA) when is_integer(C) ->
 nfa_char_class(Cc) ->
     Crs = lists:foldl(fun({C1,C2}, Set) -> add_element({C1,C2}, Set);
 			 (C, Set) -> add_element({C,C}, Set) end, [], Cc),
-    %% io:fwrite("cc: ~p\n", [Crs]),
+    %% ?dbg("cc: ~p\n", [Crs]),
     pack_crs(Crs).
 
 pack_crs([{C1,C2}=Cr,{C3,C4}|Crs]) when C1 =< C3, C2 >= C4 ->
@@ -1141,7 +1143,7 @@ pack_crs([]) -> [].
 
 nfa_comp_class(Cc) ->
     Crs = nfa_char_class(Cc),
-    %% io:fwrite("comp: ~p\n", [Crs]),
+    %% ?dbg("comp: ~p\n", [Crs]),
     comp_crs(Crs, 0).
 
 comp_crs([{C1,C2}|Crs], Last) ->
@@ -1192,7 +1194,7 @@ build_dfa(Set, Us, N, Ts, Ms, NFA) ->
     Crs1 = lists:usort(Crs0),			%Must remove duplicates!
     %% Build list of disjoint test ranges.
     Test = disjoint_crs(Crs1),
-    %% io:fwrite("bd: ~p\n    ~p\n    ~p\n    ~p\n", [Set,Crs0,Crs1,Test]),
+    %% ?dbg("bd: ~p\n    ~p\n    ~p\n    ~p\n", [Set,Crs0,Crs1,Test]),
     build_dfa(Test, Set, Us, N, Ts, Ms, NFA).
 
 %% disjoint_crs([CharRange]) -> [CharRange].
@@ -1263,7 +1265,7 @@ move(Sts, Cr, NFA) ->
 	    {Crs,St} <- (element(N, NFA))#nfa_state.edges,
 	   is_list(Crs),
 %% 	    begin
-%% 		io:fwrite("move1: ~p\n", [{Sts,Cr,Crs,in_crs(Cr,Crs)}]),
+%% 		?dbg("move1: ~p\n", [{Sts,Cr,Crs,in_crs(Cr,Crs)}]),
 %% 		true
 %% 	    end,
 	    in_crs(Cr, Crs) ].
@@ -1413,7 +1415,7 @@ build_trans(Ts0, NoAccept) ->
 	    %% Have transitions, convert to tuple.
 	    Ts2 = keysort(1, Ts1),
 	    {Tmin,Smin,Ts3} = min_trans(Ts2, NoAccept),
-	    %% io:fwrite("exptr: ~p\n", [{Ts3,Tmin}]),
+	    %% ?dbg("exptr: ~p\n", [{Ts3,Tmin}]),
 	    {Trans,Tmax,Smax} = expand_trans(Ts3, Tmin, NoAccept),
 	    {list_to_tuple(Trans),Tmin,Smin,Tmax,Smax,Sp1}
     end.
diff --git a/lib/xmerl/src/xmerl_sax_old_dom.erl b/lib/xmerl/src/xmerl_sax_old_dom.erl
index c357816a1e..08b20fffcd 100644
--- a/lib/xmerl/src/xmerl_sax_old_dom.erl
+++ b/lib/xmerl/src/xmerl_sax_old_dom.erl
@@ -28,6 +28,7 @@
 %% Include files
 %%----------------------------------------------------------------------
 -include("xmerl_sax_old_dom.hrl").
+-include("xmerl_internal.hrl").
 
 %%----------------------------------------------------------------------
 %% External exports
@@ -126,7 +127,7 @@ build_dom(endDocument,
 						 content=lists:reverse(C)
 						}]};
 	_ ->
-	    io:format("~p\n", [D]),
+	    %%?dbg("~p\n", [D]),
 	    ?error("we're not at end the document when endDocument event is encountered.")
     end;
 
diff --git a/lib/xmerl/src/xmerl_sax_simple_dom.erl b/lib/xmerl/src/xmerl_sax_simple_dom.erl
index 58a11f70fe..4fcd6b2372 100644
--- a/lib/xmerl/src/xmerl_sax_simple_dom.erl
+++ b/lib/xmerl/src/xmerl_sax_simple_dom.erl
@@ -28,6 +28,7 @@
 %% Include files
 %%----------------------------------------------------------------------
 -include("xmerl_sax_old_dom.hrl").
+-include("xmerl_internal.hrl").
 
 %%----------------------------------------------------------------------
 %% External exports
@@ -127,7 +128,7 @@ build_dom(endDocument,
 	    State#xmerl_sax_simple_dom_state{dom=[Decl, {Tag, Attributes, 
 						   lists:reverse(Content)}]};
 	_ ->
-	    io:format("~p\n", [D]),
+	    ?dbg("~p\n", [D]),
 	    ?error("we're not at end the document when endDocument event is encountered.")
     end;
 
diff --git a/lib/xmerl/src/xmerl_scan.erl b/lib/xmerl/src/xmerl_scan.erl
index 8dfbc2b89e..c15188191a 100644
--- a/lib/xmerl/src/xmerl_scan.erl
+++ b/lib/xmerl/src/xmerl_scan.erl
@@ -147,7 +147,8 @@
 	    S#xmerl_scanner.quiet ->
 		ok;
 	    true ->
-		ok=io:format("~p- fatal: ~p~n", [?LINE, Reason])
+		error_logger:error_msg("~p- fatal: ~p~n", [?LINE, Reason]),
+		ok
 	end,
 	fatal(Reason, S)).
 
@@ -255,7 +256,7 @@ file(F, Options) ->
     end.
 
 int_file(F, Options,_ExtCharset) ->
-     %%io:format("int_file F=~p~n",[F]),
+     %%?dbg("int_file F=~p~n",[F]),
     case file:read_file(F) of
 	{ok, Bin} ->
 	    int_string(binary_to_list(Bin), Options, filename:dirname(F),F);
@@ -264,7 +265,7 @@ int_file(F, Options,_ExtCharset) ->
     end.
 
 int_file_decl(F, Options,_ExtCharset) ->
-%     io:format("int_file_decl F=~p~n",[F]),
+%     ?dbg("int_file_decl F=~p~n",[F]),
     case file:read_file(F) of
 	{ok, Bin} ->
 	    int_string_decl(binary_to_list(Bin), Options, filename:dirname(F),F);
@@ -294,7 +295,7 @@ int_string(Str, Options,FileName) ->
 int_string(Str, Options, XMLBase, FileName) ->
     S0=initial_state0(Options,XMLBase),
     S = S0#xmerl_scanner{filename=FileName},
-    %%io:format("int_string1, calling xmerl_lib:detect_charset~n",[]),
+    %%?dbg("int_string1, calling xmerl_lib:detect_charset~n",[]),
 
     %% In case of no encoding attribute in document utf-8 is default, but
     %% another character set may be detected with help of Byte Order Marker or
@@ -559,20 +560,20 @@ scan_document(Str0, S=#xmerl_scanner{event_fun = Event,
 		Str0
 	end,
 %%     M1 = erlang:memory(),
-%%     io:format("Memory status before prolog: ~p~n",[M1]),
+%%     ?dbg("Memory status before prolog: ~p~n",[M1]),
     {Prolog, Pos, T1, S2} = scan_prolog(Str, S1, _StartPos = 1),
 %%     M2 = erlang:memory(),
-%%     io:format("Memory status after prolog: ~p~n",[M2]),
-    %%io:format("scan_document 2, prolog parsed~n",[]),
+%%     ?dbg("Memory status after prolog: ~p~n",[M2]),
+    %%?dbg("scan_document 2, prolog parsed~n",[]),
     T2 = scan_mandatory("<", T1, 1, S2, expected_element_start_tag),
 %%     M3 = erlang:memory(),
-%%     io:format("Memory status before element: ~p~n",[M3]),
+%%     ?dbg("Memory status before element: ~p~n",[M3]),
     {Res, T3, S3} = scan_element(T2,S2,Pos),
 %%     M4 = erlang:memory(),
-%%     io:format("Memory status after element: ~p~n",[M4]),
+%%     ?dbg("Memory status after element: ~p~n",[M4]),
     {Misc, _Pos1, Tail, S4}=scan_misc(T3, S3, Pos + 1),
 %%     M5 = erlang:memory(),
-%%     io:format("Memory status after misc: ~p~n",[M5]),
+%%     ?dbg("Memory status after misc: ~p~n",[M5]),
 
     S5 = #xmerl_scanner{} = Event(#xmerl_event{event = ended,
 					       line = S4#xmerl_scanner.line,
@@ -604,7 +605,7 @@ scan_document(Str0, S=#xmerl_scanner{event_fun = Event,
 		 case schemaLocations(Res, S5) of
 		     {ok, Schemas} ->
 			 cleanup(S5),
-			 %%io:format("Schemas: ~p~nRes: ~p~ninhertih_options(S): ~p~n",
+			 %%?dbg("Schemas: ~p~nRes: ~p~ninhertih_options(S): ~p~n",
 			 %%          [Schemas,Res,inherit_options(S5)]),
 			 XSDRes = xmerl_xsd:process_validate(Schemas, Res,
 							     inherit_options(S5)),
@@ -1373,7 +1374,7 @@ fetch_not_parse(ExtSpec,S=#xmerl_scanner{fetch_fun=Fetch}) ->
     end.
 
 get_file(F,S) ->
-%     io:format("get_file F=~p~n",[F]),
+%     ?dbg("get_file F=~p~n",[F]),
     case file:read_file(F) of
 	{ok,Bin} ->
 	    binary_to_list(Bin);
@@ -4088,7 +4089,7 @@ schemaLocations(#xmlElement{attributes=Atts,xmlbase=_Base}) ->
     end.
 
 inherit_options(S) ->
-    %%io:format("xsdbase: ~p~n",[S#xmerl_scanner.xmlbase]),
+    %%?dbg("xsdbase: ~p~n",[S#xmerl_scanner.xmlbase]),
     [{xsdbase,S#xmerl_scanner.xmlbase}].
 
 handle_schema_result({XSDRes=#xmlElement{},_},S5) ->
@@ -4227,7 +4228,7 @@ string_to_char_set(_,Str) ->
 %%     NewTot =
 %%     case {lists:keysearch(total,1,Mem),OldTot*1.1} of
 %% 	{{_,{_,Tot}},Tot110} when Tot > Tot110 ->
-%% 	    io:format("From ~p to ~p, total memory: ~p (~p)~n",[OldLine,Line,Tot,OldTot]),
+%% 	    ?dbg("From ~p to ~p, total memory: ~p (~p)~n",[OldLine,Line,Tot,OldTot]),
 %% 	    Tot;
 %% 	{{_,{_,Tot}},_} ->
 %% 	    Tot
diff --git a/lib/xmerl/src/xmerl_ucs.erl b/lib/xmerl/src/xmerl_ucs.erl
index 6550a9d954..48ae24b1de 100644
--- a/lib/xmerl/src/xmerl_ucs.erl
+++ b/lib/xmerl/src/xmerl_ucs.erl
@@ -227,7 +227,7 @@ from_ucs4be(<<Ch:32/big-signed-integer, Rest/binary>>,Acc,Tail) ->
 from_ucs4be(<<>>,Acc,Tail) ->
     lists:reverse(Acc,Tail);
 from_ucs4be(Bin,Acc,Tail) ->
-    io:format("ucs Error: Bin=~p~n     Acc=~p~n     Tail=~p~n",[Bin,Acc,Tail]),
+    ucs_error(Bin,Acc,Tail),
     {error,not_ucs4be}.
 
 char_to_ucs4le(Ch) ->
@@ -247,7 +247,7 @@ from_ucs4le(<<Ch:32/little-signed-integer, Rest/binary>>,Acc,Tail) ->
 from_ucs4le(<<>>,Acc,Tail) ->
     lists:reverse(Acc,Tail);
 from_ucs4le(Bin,Acc,Tail) ->
-    io:format("ucs Error: Bin=~p~n     Acc=~p~n     Tail=~p~n",[Bin,Acc,Tail]),
+    ucs_error(Bin,Acc,Tail),
     {error,not_ucs4le}.
 
 
@@ -269,7 +269,7 @@ from_ucs2be(<<Ch:16/big-signed-integer, Rest/binary>>,Acc,Tail) ->
 from_ucs2be(<<>>,Acc,Tail) ->
     lists:reverse(Acc,Tail);
 from_ucs2be(Bin,Acc,Tail) ->
-    io:format("ucs Error: Bin=~p~n     Acc=~p~n     Tail=~p~n",[Bin,Acc,Tail]),
+    ucs_error(Bin,Acc,Tail),
     {error,not_ucs2be}.
 
 char_to_ucs2le(Ch) ->
@@ -287,7 +287,7 @@ from_ucs2le(<<Ch:16/little-signed-integer, Rest/binary>>,Acc,Tail) ->
 from_ucs2le(<<>>,Acc,Tail) ->
     lists:reverse(Acc,Tail);
 from_ucs2le(Bin,Acc,Tail) ->
-    io:format("ucs Error: Bin=~p~n     Acc=~p~n     Tail=~p~n",[Bin,Acc,Tail]),
+    ucs_error(Bin,Acc,Tail),
     {error,not_ucs2le}.
 
 
@@ -331,7 +331,7 @@ from_utf16be(<<Hi:16/big-unsigned-integer, Lo:16/big-unsigned-integer,
 from_utf16be(<<>>,Acc,Tail) ->
     lists:reverse(Acc,Tail);
 from_utf16be(Bin,Acc,Tail) ->
-    io:format("ucs Error: Bin=~p~n     Acc=~p~n     Tail=~p~n",[Bin,Acc,Tail]),
+    ucs_error(Bin,Acc,Tail),
     {error,not_utf16be}.
 
 char_to_utf16le(Ch) when is_integer(Ch), Ch >= 0 ->
@@ -363,7 +363,7 @@ from_utf16le(<<Hi:16/little-unsigned-integer, Lo:16/little-unsigned-integer,
 from_utf16le(<<>>,Acc,Tail) ->
     lists:reverse(Acc,Tail);
 from_utf16le(Bin,Acc,Tail) ->
-    io:format("ucs Error: Bin=~p~n     Acc=~p~n     Tail=~p~n",[Bin,Acc,Tail]),
+    ucs_error(Bin,Acc,Tail),
     {error,not_utf16le}.
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -571,3 +571,6 @@ test_charset(Fun,Input) ->
 	    false
     end.
 
+ucs_error(Bin,Acc,Tail) ->
+    error_logger:error_msg("~w: Bin=~p~n     Acc=~p~n     Tail=~p~n",
+                           [?MODULE,Bin,Acc,Tail]).
diff --git a/lib/xmerl/src/xmerl_validate.erl b/lib/xmerl/src/xmerl_validate.erl
index 60f228474b..e1d71aa818 100644
--- a/lib/xmerl/src/xmerl_validate.erl
+++ b/lib/xmerl/src/xmerl_validate.erl
@@ -23,7 +23,7 @@
 
 
 -include("xmerl.hrl").		% record def, macros
-
+-include("xmerl_internal.hrl").
 
 
 %% +type validate(xmerl_scanner(),xmlElement())->
@@ -300,7 +300,7 @@ test_attribute_value('NMTOKEN',#xmlAttribute{name=Name,value=V}=Attr,
 		    true->
 			ok;
 		    false->
-			%%io:format("Warning*** nmtoken,value_incorrect:  ~p~n",[V]),
+			%%?dbg("nmtoken,value_incorrect:  ~p~n",[V]),
 			exit({error,{invalid_value_nmtoken,Name,V}})
 		end
 	end,
@@ -381,7 +381,7 @@ test_attribute_value({Type,L},#xmlAttribute{value=Value}=Attr,Default,_S)
 	    exit({error,{duplicate_tokens_not_allowed,{list,L}}})
     end;
 test_attribute_value(_Rule,Attr,_,_) ->
-%    io:format("Attr Value*****~nRule~p~nValue~p~n",[Rule,Attr]),
+%    ?dbg("Attr Value*****~nRule~p~nValue~p~n",[Rule,Attr]),
     Attr.
 
 
@@ -423,11 +423,11 @@ parse({'+',SubRule}, XMLS, Rules, WSaction, S) ->
 parse({choice,CHOICE}, XMLS, Rules, WSaction, S)->
 %    case XMLS of
 %	[] ->
-%	    io:format("~p~n",[{choice,CHOICE,[]}]);
+%	    ?dbg("~p~n",[{choice,CHOICE,[]}]);
 %	[#xmlElement{name=Name,pos=Pos}|_] ->
-%	    io:format("~p~n",[{choice,CHOICE,{Name,Pos}}]);
+%	    ?dbg("~p~n",[{choice,CHOICE,{Name,Pos}}]);
 %	[#xmlText{value=V}|_] ->
-%	    io:format("~p~n",[{choice,CHOICE,{text,V}}])
+%	    ?dbg("~p~n",[{choice,CHOICE,{text,V}}])
 %    end,
     choice(CHOICE, XMLS, Rules, WSaction, S);
 parse(empty, [], _Rules, _WSaction, _S) ->
@@ -550,10 +550,10 @@ star(Rule,XMLS,Rules,WSaction,Tree,S) ->
     {WS,XMLS1} = whitespace_action(XMLS,WSaction),
     case parse(Rule,XMLS1,Rules,WSaction,S) of
 	{error, _E, {{next,N},{act,A}}}->
-	    %%io:format("Error~p~n",[_E]),
+	    %%?dbg("Error~p~n",[_E]),
 	    {WS++Tree++A,N};
 	{error, _E}->
-	    %%io:format("Error~p~n",[_E]),
+	    %%?dbg("Error~p~n",[_E]),
 %	    {WS++[Tree],[]};
 	    case  whitespace_action(XMLS,ws_action(WSaction,remove)) of
 		{[],_} ->
diff --git a/lib/xmerl/src/xmerl_xml.erl b/lib/xmerl/src/xmerl_xml.erl
index 702a654629..3354592cf1 100644
--- a/lib/xmerl/src/xmerl_xml.erl
+++ b/lib/xmerl/src/xmerl_xml.erl
@@ -31,6 +31,7 @@
 -import(xmerl_lib, [markup/3, empty_tag/2, export_text/1]).
 
 -include("xmerl.hrl").
+-include("xmerl_internal.hrl").
 
 
 '#xml-inheritance#'() -> [].
@@ -39,7 +40,7 @@
 %% The '#text#' function is called for every text segment.
 
 '#text#'(Text) ->
-%io:format("Text=~p~n",[Text]),
+%?dbg("Text=~p~n",[Text]),
     export_text(Text).
 
 
@@ -55,8 +56,8 @@
 %% The '#element#' function is the default handler for XML elements.
 
 '#element#'(Tag, [], Attrs, _Parents, _E) ->
-%io:format("Empty Tag=~p~n",[Tag]),
+%?dbg("Empty Tag=~p~n",[Tag]),
     empty_tag(Tag, Attrs);
 '#element#'(Tag, Data, Attrs, _Parents, _E) ->
-%io:format("Tag=~p~n",[Tag]),
+%?dbg("Tag=~p~n",[Tag]),
     markup(Tag, Attrs, Data).
diff --git a/lib/xmerl/src/xmerl_xpath.erl b/lib/xmerl/src/xmerl_xpath.erl
index be0e863ce4..bce2a199f4 100644
--- a/lib/xmerl/src/xmerl_xpath.erl
+++ b/lib/xmerl/src/xmerl_xpath.erl
@@ -128,18 +128,18 @@ string(Str, Node, Parents, Doc, Options) ->
 	    [{H, P}|_] when is_atom(H), is_integer(P) ->
 		full_parents(Parents, Doc)
 	end,
-%io:format("string FullParents=~p~n",[FullParents]),
+%?dbg("string FullParents=~p~n",[FullParents]),
     ContextNode=#xmlNode{type = node_type(Node),
 			 node = Node,
 			 parents = FullParents},
-%io:format("string ContextNode=~p~n",[ContextNode]),
+%?dbg("string ContextNode=~p~n",[ContextNode]),
     WholeDoc = whole_document(Doc),
-%io:format("string WholeDoc=~p~n",[WholeDoc]),
+%?dbg("string WholeDoc=~p~n",[WholeDoc]),
     Context=(new_context(Options))#xmlContext{context_node = ContextNode,
 					      whole_document = WholeDoc},
-%io:format("string Context=~p~n",[Context]),
+%?dbg("string Context=~p~n",[Context]),
     #state{context = NewContext} = match(Str, #state{context = Context}),
-%io:format("string NewContext=~p~n",[NewContext]),
+%?dbg("string NewContext=~p~n",[NewContext]),
     case NewContext#xmlContext.nodeset of
 	ScalObj = #xmlObj{type=Scalar} 
 	when Scalar == boolean;	Scalar == number; Scalar == string ->
@@ -274,7 +274,7 @@ eval_pred(Predicate, S = #state{context = C =
     NewNodeSet = 
 	lists:filter(
 	  fun(Node) ->
-		  %io:format("current node: ~p~n", [write_node(Node)]),
+		  %?dbg("current node: ~p~n", [write_node(Node)]),
 		  ThisContext = C#xmlContext{context_node = Node},
 		  xmerl_xpath_pred:eval(Predicate, ThisContext)
 	  end, NodeSet),
@@ -461,7 +461,7 @@ match_descendant_or_self(Tok, N, Acc, Context) ->
 
 
 match_child(Tok, N, Acc, Context) ->
-    %io:format("match_child(~p)~n", [write_node(N)]),
+    %?dbg("match_child(~p)~n", [write_node(N)]),
     #xmlNode{parents = Ps, node = Node, type = Type} = N,
     case Type of
 	El when El == element; El == root_node ->
@@ -738,7 +738,7 @@ node_test({prefix_test, Prefix}, #xmlNode{node = N}, Context) ->
     end;
 node_test({name, {Tag, _Prefix, _Local}}, 
 	  #xmlNode{node = #xmlElement{name = Tag}}=_N, _Context) -> 
-    %io:format("node_test({tag, ~p}, ~p) -> true.~n", [Tag, write_node(_N)]),
+    %?dbg("node_test({tag, ~p}, ~p) -> true.~n", [Tag, write_node(_N)]),
     true;
 node_test({name, {Tag, Prefix, Local}}, 
 	  #xmlNode{node = #xmlElement{name = Name,
@@ -816,7 +816,7 @@ node_test({processing_instruction, Name1},
 	  #xmlNode{node = #xmlPI{name = Name2}}, _Context) ->
     Name1 == atom_to_list(Name2);
 node_test(_Other, _N, _Context) ->
-    %io:format("node_test(~p, ~p) -> false.~n", [_Other, write_node(_N)]),
+    %?dbg("node_test(~p, ~p) -> false.~n", [_Other, write_node(_N)]),
     false.
 
 
diff --git a/lib/xmerl/src/xmerl_xpath_pred.erl b/lib/xmerl/src/xmerl_xpath_pred.erl
index b94f3bb14d..acefa68f7e 100644
--- a/lib/xmerl/src/xmerl_xpath_pred.erl
+++ b/lib/xmerl/src/xmerl_xpath_pred.erl
@@ -58,6 +58,7 @@
 -export([core_function/1]).	 
 
 -include("xmerl.hrl").
+-include("xmerl_internal.hrl").
 -include("xmerl_xpath.hrl").
 
 %% -record(obj, {type,
@@ -88,7 +89,7 @@ eval(Expr, C = #xmlContext{context_node = #xmlNode{pos = Pos}}) ->
 	      _ ->
 		  mk_boolean(C, Obj)
 	  end,
-%    io:format("eval(~p, ~p) -> ~p~n", [Expr, Pos, Res]),
+%    ?dbg("eval(~p, ~p) -> ~p~n", [Expr, Pos, Res]),
     Res.
 
 
diff --git a/lib/xmerl/src/xmerl_xsd.erl b/lib/xmerl/src/xmerl_xsd.erl
index 16d02f571d..c84cb93bb8 100644
--- a/lib/xmerl/src/xmerl_xsd.erl
+++ b/lib/xmerl/src/xmerl_xsd.erl
@@ -381,7 +381,7 @@ initiate_state2(S,[{target_namespace,_NS}|T]) ->
 %%    initiate_state2(S#xsd_state{targetNamespace=if_list_to_atom(NS)},T);
     initiate_state2(S,T); %% used in validation phase
 initiate_state2(S,[H|T]) ->
-    error_msg("Invalid option: ~p~n",[H]),
+    error_msg("~w: invalid option: ~p~n",[?MODULE, H]),
     initiate_state2(S,T).
 
 validation_options(S,[{target_namespace,NS}|T]) ->
@@ -5391,7 +5391,7 @@ search_attribute(_,{Name,_,_},SchemaAtts) ->
     end.
 
 error_msg(Format,Args) ->
-    io:format(Format,Args).
+    error_logger:error_msg(Format,Args).
 
 
 add_once(El,L) ->
@@ -5425,7 +5425,7 @@ add_key_once(Key,N,El,L) ->
 %%     "/"++filename:join(L).
 
 %% mk_xml_path(Parents,Type,Pos) ->
-%% %%    io:format("mk_xml_path: Parents = ~p~n",[Parents]),
+%% %%    ?dbg("mk_xml_path: Parents = ~p~n",[Parents]),
 %%     {filename:join([[io_lib:format("/~w(~w)",[X,Y])||{X,Y}<-Parents],Type]),Pos}.
 
 %% @spec format_error(Errors) -> Result
diff --git a/lib/xmerl/src/xmerl_xsd_type.erl b/lib/xmerl/src/xmerl_xsd_type.erl
index 0f46b1f9aa..acb988b9bc 100644
--- a/lib/xmerl/src/xmerl_xsd_type.erl
+++ b/lib/xmerl/src/xmerl_xsd_type.erl
@@ -29,6 +29,7 @@
 -export([compare_durations/2,compare_dateTime/2]).
 
 -include("xmerl.hrl").
+-include("xmerl_internal.hrl").
 -include("xmerl_xsd.hrl").
 
 
@@ -687,7 +688,8 @@ facet_fun(Type,{fractionDigits,V}) ->
     fractionDigits_fun(Type,list_to_integer(V));
 facet_fun(Type,F) ->
     fun(_X_) ->
-	    io:format("Warning: not valid facet on ~p ~p~n",[Type,F])
+	    error_logger:warning_msg("~w: not valid facet on ~p ~p~n",
+                                     [?MODULE,Type,F])
     end.
 
 
@@ -1075,7 +1077,7 @@ compare_floats(F1,F2) when F1=="-INF";F2=="INF" ->
 compare_floats(Str1,Str2) ->
     F1={S1,_B1,_D1,_E1} = str_to_float(Str1),
     F2={S2,_B2,_D2,_E2} = str_to_float(Str2),
-%    io:format("F1: ~p~nF2: ~p~n",[F1,F2]),
+%    ?dbg("F1: ~p~nF2: ~p~n",[F1,F2]),
     if
 	S1=='-',S2=='+' -> lt;
 	S1=='+',S2=='-' -> gt;
diff --git a/lib/xmerl/vsn.mk b/lib/xmerl/vsn.mk
index aab2a37d6c..1ed230316f 100644
--- a/lib/xmerl/vsn.mk
+++ b/lib/xmerl/vsn.mk
@@ -1 +1 @@
-XMERL_VSN = 1.3.7
+XMERL_VSN = 1.3.8
diff --git a/make/otp_release_targets.mk b/make/otp_release_targets.mk
index fcac2ff695..3180a559cc 100644
--- a/make/otp_release_targets.mk
+++ b/make/otp_release_targets.mk
@@ -44,6 +44,7 @@ $(HTMLDIR)/index.html: $(XML_FILES) $(SPECS_FILES)
           --stringparam gendate "$$date" \
           --stringparam appname "$(APPLICATION)" \
           --stringparam appver "$(VSN)" \
+	  --stringparam extra_front_page_info "$(DOC_EXTRA_FRONT_PAGE_INFO)" \
 	  --stringparam stylesheet "$(CSS_FILE)" \
 	  --stringparam winprefix "$(WINPREFIX)" \
 	  --stringparam logo "$(HTMLLOGO_FILE)" \
@@ -64,6 +65,7 @@ $(HTMLDIR)/users_guide.html: $(XML_FILES)
 		--stringparam gendate "$$date" \
 	        --stringparam appname "$(APPLICATION)" \
 	        --stringparam appver "$(VSN)" \
+	        --stringparam extra_front_page_info "$(DOC_EXTRA_FRONT_PAGE_INFO)" \
 		--stringparam stylesheet "$(CSS_FILE)" \
 		--stringparam winprefix "$(WINPREFIX)" \
 		--stringparam logo "$(HTMLLOGO_FILE)" \
@@ -80,6 +82,7 @@ $(HTMLDIR)/users_guide.html: $(XML_FILES)
          --stringparam gendate "$$date" \
          --stringparam appname "$(APPLICATION)" \
          --stringparam appver "$(VSN)" \
+	 --stringparam extra_front_page_info "$(DOC_EXTRA_FRONT_PAGE_INFO)" \
 	 --stringparam logo "$(PDFLOGO_FILE)" \
 	 --stringparam pdfcolor "$(PDFCOLOR)" \
          --xinclude $(TOP_SPECS_PARAM) \
diff --git a/make/run_make.mk b/make/run_make.mk
index 01ab257006..9570113861 100644
--- a/make/run_make.mk
+++ b/make/run_make.mk
@@ -30,7 +30,7 @@ include $(ERL_TOP)/make/target.mk
 
 .PHONY: valgrind
 
-opt debug purify quantify purecov valgrind gcov gprof lcnt frmptr:
+opt debug purify quantify purecov valgrind gcov gprof lcnt frmptr icount:
 	$(make_verbose)$(MAKE) -f $(TARGET)/Makefile TYPE=$@
 
 plain smp frag smp_frag:
diff --git a/system/doc/design_principles/applications.xml b/system/doc/design_principles/applications.xml
index 7b030115df..9d3a204999 100644
--- a/system/doc/design_principles/applications.xml
+++ b/system/doc/design_principles/applications.xml
@@ -29,55 +29,63 @@
     <file>applications.xml</file>
   </header>
   <marker id="appl"></marker>
-  <p>This chapter should be read in conjunction with <c>app(4)</c> and
-    <c>application(3)</c>.</p>
+  <p>This section is to be read with the <c>app(4)</c> and
+  <c>application(3)</c> manual pages in Kernel.</p>
 
   <section>
     <title>Application Concept</title>
-    <p>When we have written code implementing some specific
-      functionality, we might want to make the code into an
-      <em>application</em>, that is a component that can be started and
-      stopped as a unit, and which can be re-used in other systems as
-      well.</p>
-    <p>To do this, we create an
-      <seealso marker="#callback_module">application callback module</seealso>, where we describe how the application should
-      be started and stopped.</p>
+    <p>When you have written code implementing some specific functionality
+      you might want to make the code into an <em>application</em>,
+      that is, a component that can be started and stopped as a unit,
+      and which can also be reused in other systems.</p>
+    <p>To do this, create an
+      <seealso marker="#callback_module">application callback module</seealso>,
+      and describe how the application is to be started and stopped.</p>
     <p>Then, an <em>application specification</em> is needed, which is
-      put in an <seealso marker="#appl_res_file">application resource file</seealso>. Among other things, we specify which
-      modules the application consists of and the name of the callback
-      module.</p>
-    <p>If we use <c>systools</c>, the Erlang/OTP tools for packaging code
+      put in an
+      <seealso marker="#appl_res_file">application resource file</seealso>.
+      Among other things, this file specifies which modules the application
+      consists of and the name of the callback module.</p>
+    <p>If you use <c>systools</c>, the Erlang/OTP tools for packaging code
       (see <seealso marker="release_structure">Releases</seealso>),
-      the code for each application is placed in a separate directory
-      following a pre-defined <seealso marker="#app_dir">directory structure</seealso>.</p>
+      the code for each application is placed in a
+      separate directory following a pre-defined
+    <seealso marker="#app_dir">directory structure</seealso>.</p>
   </section>
 
   <section>
     <marker id="callback_module"></marker>
     <title>Application Callback Module</title>
-    <p>How to start and stop the code for the application, i.e.
+    <p>How to start and stop the code for the application, that is,
       the supervision tree, is described by two callback functions:</p>
     <code type="none">
 start(StartType, StartArgs) -> {ok, Pid} | {ok, Pid, State}
-stop(State)</code>
-    <p><c>start</c> is called when starting the application and should
-      create the supervision tree by starting the top supervisor.
-      It is expected to return the pid of the top supervisor and an
-      optional term <c>State</c>, which defaults to []. This term is
-      passed as-is to <c>stop</c>.</p>
-    <p><c>StartType</c> is usually the atom <c>normal</c>. It has other
+stop(State)
+    </code>
+    <list type="bulleted">
+      <item><c>start</c> is called when starting the application and is to
+      create the supervision tree by starting the top supervisor. It is
+      expected to return the pid of the top supervisor and an optional
+      term, <c>State</c>, which defaults to <c>[]</c>. This term is passed
+      as is to <c>stop</c>.</item>
+      <item><c>StartType</c> is usually the atom <c>normal</c>. It has other
       values only in the case of a takeover or failover, see
-      <seealso marker="distributed_applications">Distributed Applications</seealso>. <c>StartArgs</c> is defined by the key
-      <c>mod</c> in the <seealso marker="#appl_res_file">application resource file</seealso> file.</p>
-    <p><c>stop/1</c> is called <em>after</em> the application has been
-      stopped and should do any necessary cleaning up. Note that
-      the actual stopping of the application, that is the shutdown of
-      the supervision tree, is handled automatically as described in
-      <seealso marker="#stopping">Starting and Stopping Applications</seealso>.</p>
+      <seealso marker="distributed_applications">Distributed Applications</seealso>.
+      </item>
+      <item><c>StartArgs</c> is defined by the key <c>mod</c> in the
+      <seealso marker="#appl_res_file">application
+      resource file</seealso>.</item>
+      <item><c>stop/1</c> is called <em>after</em> the application has been
+      stopped and is to do any necessary cleaning up. The actual stopping of
+      the application, that is, the shutdown of the supervision tree, is
+      handled automatically as described in
+      <seealso marker="#stopping">Starting and Stopping Applications</seealso>.
+      </item>
+    </list>
     <marker id="ch_app"></marker>
     <p>Example of an application callback module for packaging
       the supervision tree from
-      the <seealso marker="sup_princ#ex">Supervisor</seealso> chapter:</p>
+      <seealso marker="sup_princ#ex">Supervisor Behaviour</seealso>:</p>
     <code type="none">
 -module(ch_app).
 -behaviour(application).
@@ -89,44 +97,48 @@ start(_Type, _Args) ->
 
 stop(_State) ->
     ok.</code>
-    <p>A library application, which can not be started or stopped,
-      does not need any application callback module.</p>
+    <p>A library application that cannot be started or stopped, does not
+      need any application callback module.</p>
   </section>
 
   <section>
     <marker id="appl_res_file"></marker>
     <title>Application Resource File</title>
-    <p>To define an application, we create an <em>application specification</em> which is put in an <em>application resource file</em>, or in short <c>.app</c> file:</p>
+    <p>To define an application, an <em>application specification</em> is
+      created, which is put in an <em>application resource file</em>, or in
+      short an <c>.app</c> file:</p>
     <code type="none">
 {application, Application, [Opt1,...,OptN]}.</code>
-    <p><c>Application</c>, an atom, is the name of the application.
-      The file must be named <c>Application.app</c>.</p>
-    <p>Each <c>Opt</c> is a tuple <c>{Key, Value}</c> which define a
+<list>
+    <item><c>Application</c>, an atom, is the name of the application.
+      The file must be named <c>Application.app</c>.</item>
+    <item>Each <c>Opt</c> is a tuple <c>{Key,Value}</c>, which define a
       certain property of the application. All keys are optional.
-      Default values are used for any omitted keys.</p>
+      Default values are used for any omitted keys.</item>
+</list>
     <p>The contents of a minimal <c>.app</c> file for a library
-      application <c>libapp</c> looks like this:</p>
+      application <c>libapp</c> looks as follows:</p>
     <code type="none">
 {application, libapp, []}.</code>
     <p>The contents of a minimal <c>.app</c> file <c>ch_app.app</c> for
-      a supervision tree application like <c>ch_app</c> looks like this:</p>
+      a supervision tree application like <c>ch_app</c> looks as follows:</p>
     <code type="none">
 {application, ch_app,
  [{mod, {ch_app,[]}}]}.</code>
-    <p>The key <c>mod</c> defines the callback module and start
-      argument of the application, in this case <c>ch_app</c> and
-      [], respectively. This means that</p>
+    <p>The key <c>mod</c> defines the callback module and start argument of
+      the application, in this case <c>ch_app</c> and <c>[]</c>, respectively.
+      This means that the following is called when the application is to be
+      started:</p>
     <code type="none">
 ch_app:start(normal, [])</code>
-    <p>will be called when the application should be started and</p>
+    <p>The following is called when the application is stopped.</p>
     <code type="none">
 ch_app:stop([])</code>
-    <p>will be called when the application has been stopped.</p>
     <p>When using <c>systools</c>, the Erlang/OTP tools for packaging
-      code (see <seealso marker="release_structure">Releases</seealso>),
-      the keys <c>description</c>, <c>vsn</c>, <c>modules</c>,
-      <c>registered</c> and <c>applications</c> should also be
-      specified:</p>
+      code (see Section
+      <seealso marker="release_structure">Releases</seealso>), the keys
+      <c>description</c>, <c>vsn</c>, <c>modules</c>, <c>registered</c>,
+      and <c>applications</c> are also to be specified:</p>
     <code type="none">
 {application, ch_app,
  [{description, "Channel allocator"},
@@ -136,67 +148,54 @@ ch_app:stop([])</code>
   {applications, [kernel, stdlib, sasl]},
   {mod, {ch_app,[]}}
  ]}.</code>
-    <taglist>
-      <tag><c>description</c></tag>
-      <item>A short description, a string. Defaults to "".</item>
-      <tag><c>vsn</c></tag>
-      <item>Version number, a string. Defaults to "".</item>
-      <tag><c>modules</c></tag>
-      <item>All modules <em>introduced</em> by this application.
-      <c>systools</c> uses this list when generating boot scripts and
-       tar files. A module must be defined in one and only one
-       application. Defaults to [].</item>
-      <tag><c>registered</c></tag>
-      <item>All names of registered processes in the application.
-      <c>systools</c> uses this list to detect name clashes
-       between applications. Defaults to [].</item>
-      <tag><c>applications</c></tag>
-      <item>All applications which must be started before this
-       application is started. <c>systools</c> uses this list to
-       generate correct boot scripts. Defaults to [], but note that
-       all applications have dependencies to at least <c>kernel</c>
-       and <c>stdlib</c>.</item>
-    </taglist>
-    <note><p>The syntax and contents of of the application resource file
-      are described in detail in the<seealso marker="kernel:app">
-      Application resource file reference</seealso>.</p></note>
+ <list>
+   <item><c>description</c> - A short description, a string. Defaults to
+   "".</item>
+   <item><c>vsn</c> - Version number, a string. Defaults to "".</item>
+   <item><c>modules</c> - All modules <em>introduced</em> by this
+   application. <c>systools</c> uses this list when generating boot scripts
+   and tar files. A module must be defined in only one application.
+   Defaults to <c>[]</c>.</item>
+   <item><c>registered</c> - All names of registered processes in the
+   application. <c>systools</c> uses this list to detect name clashes
+   between applications. Defaults to <c>[]</c>.</item>
+   <item><c>applications</c> - All applications that must be
+   started before this application is started. <c>systools</c> uses this
+   list to generate correct boot scripts. Defaults to <c>[]</c>. Notice
+   that all applications have dependencies to at least Kernel
+   and STDLIB.</item>
+ </list>
+    <note><p>For details about the syntax and contents of the application
+    resource file, see the <seealso marker="kernel:app">app</seealso>
+    manual page in Kernel.</p></note>
   </section>
 
   <section>
     <marker id="app_dir"></marker>
     <title>Directory Structure</title>
     <p>When packaging code using <c>systools</c>, the code for each
-      application is placed in a separate directory
+      application is placed in a separate directory,
       <c>lib/Application-Vsn</c>, where <c>Vsn</c> is the version number.</p>
-    <p>This may be useful to know, even if <c>systools</c> is not used,
-      since Erlang/OTP itself is packaged according to the OTP principles
+    <p>This can be useful to know, even if <c>systools</c> is not used,
+      since Erlang/OTP is packaged according to the OTP principles
       and thus comes with this directory structure. The code server
-      (see <c>code(3)</c>) will automatically use code from
-      the directory with the highest version number, if there are
-      more than one version of an application present.</p>
-    <p>The application directory structure can of course be used in
-      the development environment as well. The version number may then
+      (see the <c>code(3)</c> manual page in Kernel) automatically
+      uses code from
+      the directory with the highest version number, if more than one
+      version of an application is present.</p>
+    <p>The application directory structure can also be used in the
+      development environment. The version number can then
       be omitted from the name.</p>
-    <p>The application directory have the following sub-directories:</p>
+    <p>The application directory has the following sub-directories:</p>
     <list type="bulleted">
-      <item><c>src</c></item>
-      <item><c>ebin</c></item>
-      <item><c>priv</c></item>
-      <item><c>include</c></item>
+      <item><c>src</c> - Contains the Erlang source code.</item>
+      <item><c>ebin</c> - Contains the Erlang object code, the
+      <c>beam</c> files. The <c>.app</c> file is also placed here.</item>
+      <item><c>priv</c> - Used for application specific files. For
+      example, C executables are placed here. The function
+      <c>code:priv_dir/1</c> is to be used to access this directory.</item>
+      <item><c>include</c> - Used for include files.</item>
     </list>
-    <taglist>
-      <tag><c>src</c></tag>
-      <item>Contains the Erlang source code.</item>
-      <tag><c>ebin</c></tag>
-      <item>Contains the Erlang object code, the <c>beam</c> files.
-       The <c>.app</c> file is also placed here.</item>
-      <tag><c>priv</c></tag>
-      <item>Used for application specific files. For example, C
-       executables are placed here. The function <c>code:priv_dir/1</c>
-       should be used to access this directory.</item>
-      <tag><c>include</c></tag>
-      <item>Used for include files.</item>
-    </taglist>
   </section>
 
   <section>
@@ -207,17 +206,17 @@ ch_app:stop([])</code>
       processes is the <em>application controller</em> process,
       registered as <c>application_controller</c>.</p>
     <p>All operations on applications are coordinated by the application
-      controller. It is interfaced through the functions in
-      the module <c>application</c>, see <c>application(3)</c>.
-      In particular, applications can be loaded, unloaded, started and
-      stopped.</p>
+      controller. It is interacted through the functions in
+      the module <c>application</c>, see the <c>application(3)</c>
+      manual page in Kernel. In particular, applications can be
+      loaded, unloaded, started, and stopped.</p>
   </section>
 
   <section>
     <title>Loading and Unloading Applications</title>
     <p>Before an application can be started, it must be <em>loaded</em>.
       The application controller reads and stores the information from
-      the <c>.app</c> file.</p>
+      the <c>.app</c> file:</p>
     <pre>
 1> <input>application:load(ch_app).</input>
 ok
@@ -236,7 +235,7 @@ ok
  {stdlib,"ERTS  CXC 138 10","1.11.4.3"}]</pre>
     <note>
       <p>Loading/unloading an application does not load/unload the code
-        used by the application. Code loading is done the usual way.</p>
+      used by the application. Code loading is done the usual way.</p>
     </note>
   </section>
 
@@ -252,13 +251,14 @@ ok
  {stdlib,"ERTS  CXC 138 10","1.11.4.3"},
  {ch_app,"Channel allocator","1"}]</pre>
     <p>If the application is not already loaded, the application
-      controller will first load it using <c>application:load/1</c>. It
-      will check the value of the <c>applications</c> key, to ensure
-      that all applications that should be started before this
+      controller first loads it using <c>application:load/1</c>. It
+      checks the value of the <c>applications</c> key, to ensure
+      that all applications that are to be started before this
       application are running.</p>
     <marker id="application_master"></marker>
-    <p>The application controller then creates an <em>application master</em> for the application. The application master is
-      the group leader of all the processes in the application.
+    <p>The application controller then creates an
+    <em>application master</em> for the application. The application master
+      is the group leader of all the processes in the application.
       The application master starts the application by calling
       the application callback function <c>start/2</c> in the module,
       and with the start argument, defined by the <c>mod</c> key in
@@ -268,8 +268,8 @@ ok
 7> <input>application:stop(ch_app).</input>
 ok</pre>
     <p>The application master stops the application by telling the top
-      supervisor to shutdown. The top supervisor tells all its child
-      processes to shutdown etc. and the entire tree is terminated in
+      supervisor to shut down. The top supervisor tells all its child
+      processes to shut down, and so on; the entire tree is terminated in
       reversed start order. The application master then calls
       the application callback function <c>stop/1</c> in the module
       defined by the <c>mod</c> key.</p>
@@ -277,8 +277,10 @@ ok</pre>
 
   <section>
     <title>Configuring an Application</title>
-    <p>An application can be configured using <em>configuration parameters</em>. These are a list of <c>{Par, Val}</c> tuples
-      specified by a key <c>env</c> in the <c>.app</c> file.</p>
+    <p>An application can be configured using
+    <em>configuration parameters</em>. These are a list of
+    <c>{Par,Val}</c> tuples
+    specified by a key <c>env</c> in the <c>.app</c> file:</p>
     <code type="none">
 {application, ch_app,
  [{description, "Channel allocator"},
@@ -289,11 +291,12 @@ ok</pre>
   {mod, {ch_app,[]}},
   {env, [{file, "/usr/local/log"}]}
  ]}.</code>
-    <p><c>Par</c> should be an atom, <c>Val</c> is any term.
+    <p><c>Par</c> is to be an atom. <c>Val</c> is any term.
       The application can retrieve the value of a configuration
       parameter by calling <c>application:get_env(App, Par)</c> or a
-      number of similar functions, see <c>application(3)</c>.</p>
-    <p>Example:</p>
+      number of similar functions, see the <c>application(3)</c>
+      manual page in Kernel.</p>
+    <p><em>Example:</em></p>
     <pre>
 % <input>erl</input>
 Erlang (BEAM) emulator version 5.2.3.6 [hipe] [threads:0]
@@ -304,20 +307,21 @@ ok
 2> <input>application:get_env(ch_app, file).</input>
 {ok,"/usr/local/log"}</pre>
     <p>The values in the <c>.app</c> file can be overridden by values
-      in a <em>system configuration file</em>. This is a file which
+      in a <em>system configuration file</em>. This is a file that
       contains configuration parameters for relevant applications:</p>
     <code type="none">
 [{Application1, [{Par11,Val11},...]},
  ...,
  {ApplicationN, [{ParN1,ValN1},...]}].</code>
-    <p>The system configuration should be called <c>Name.config</c> and
-      Erlang should be started with the command line argument
-      <c>-config Name</c>. See <c>config(4)</c> for more information.</p>
-    <p>Example: A file <c>test.config</c> is created with the following
-      contents:</p>
+    <p>The system configuration is to be called <c>Name.config</c> and
+      Erlang is to be started with the command-line argument
+      <c>-config Name</c>. For details, see the <c>config(4)</c>
+      manual page in Kernel.</p>
+    <p><em>Example:</em></p>
+    <p>A file <c>test.config</c> is created with the following contents:</p>
     <code type="none">
 [{ch_app, [{file, "testlog"}]}].</code>
-    <p>The value of <c>file</c> will override the value of <c>file</c>
+    <p>The value of <c>file</c> overrides the value of <c>file</c>
       as defined in the <c>.app</c> file:</p>
     <pre>
 % <input>erl -config test</input>
@@ -330,14 +334,14 @@ ok
 {ok,"testlog"}</pre>
     <p>If
       <seealso marker="release_handling#sys">release handling</seealso>
-      is used, exactly one system configuration file should be used and
-      that file should be called <c>sys.config</c></p>
-    <p>The values in the <c>.app</c> file, as well as the values in a
-      system configuration file, can be overridden directly from
+      is used, exactly one system configuration file is to be used and
+      that file is to be called <c>sys.config</c>.</p>
+    <p>The values in the <c>.app</c> file and the values in a
+      system configuration file can be overridden directly from
       the command line:</p>
     <pre>
 % <input>erl -ApplName Par1 Val1 ... ParN ValN</input></pre>
-    <p>Example:</p>
+    <p><em>Example:</em></p>
     <pre>
 % <input>erl -ch_app file '"testlog"'</input>
 Erlang (BEAM) emulator version 5.2.3.6 [hipe] [threads:0]
@@ -368,10 +372,10 @@ application:start(Application, Type)</code>
       <item>If a temporary application terminates, this is reported but
        no other applications are terminated.</item>
     </list>
-    <p>It is always possible to stop an application explicitly by
+    <p>An application can always be stopped explicitly by
       calling <c>application:stop/1</c>. Regardless of the mode, no
-      other applications will be affected.</p>
-    <p>Note that transient mode is of little practical use, since when
+      other applications are affected.</p>
+    <p>The transient mode is of little practical use, since when
       a supervision tree terminates, the reason is set to
       <c>shutdown</c>, not <c>normal</c>.</p>
   </section>
diff --git a/system/doc/design_principles/appup_cookbook.xml b/system/doc/design_principles/appup_cookbook.xml
index 70c34a5a06..63adea8a5c 100644
--- a/system/doc/design_principles/appup_cookbook.xml
+++ b/system/doc/design_principles/appup_cookbook.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2003</year><year>2013</year>
+      <year>2003</year><year>2014</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -28,15 +28,15 @@
     <rev></rev>
     <file>appup_cookbook.xml</file>
   </header>
-  <p>This chapter contains examples of <c>.appup</c> files for
-    typical cases of upgrades/downgrades done in run-time.</p>
+  <marker id="appup cookbook"></marker>
+  <p>This section includes examples of <c>.appup</c> files for
+    typical cases of upgrades/downgrades done in runtime.</p>
 
   <section>
     <title>Changing a Functional Module</title>
-    <p>When a change has been made to a functional module, for example
+    <p>When a functional module has been changed, for example,
       if a new function has been added or a bug has been corrected,
-      simple code replacement is sufficient.</p>
-    <p>Example:</p>
+      simple code replacement is sufficient, for example:</p>
     <code type="none">
 {"2",
  [{"1", [{load_module, m}]}],
@@ -46,29 +46,31 @@
 
   <section>
     <title>Changing a Residence Module</title>
-    <p>In a system implemented according to the OTP Design Principles,
+    <p>In a system implemented according to the OTP design principles,
       all processes, except system processes and special processes,
       reside in one of the behaviours <c>supervisor</c>,
-      <c>gen_server</c>, <c>gen_fsm</c> or <c>gen_event</c>. These
+      <c>gen_server</c>, <c>gen_fsm</c>, or <c>gen_event</c>. These
       belong to the STDLIB application and upgrading/downgrading
       normally requires an emulator restart.</p>
-    <p>OTP thus provides no support for changing residence modules
-      except in the case of <seealso marker="#spec">special processes</seealso>.</p>
+    <p>OTP thus provides no support for changing residence modules except
+      in the case of <seealso marker="#spec">special processes</seealso>.</p>
   </section>
 
   <section>
     <title>Changing a Callback Module</title>
-    <p>A callback module is a functional module, and for code
+     <p>A callback module is a functional module, and for code
       extensions simple code replacement is sufficient.</p>
-    <p>Example: When adding a function to <c>ch3</c> as described in
-      the example in <seealso marker="release_handling#appup">Release Handling</seealso>, <c>ch_app.appup</c> looks as follows:</p>
+      <p><em>Example:</em> When adding a function to <c>ch3</c>,
+      as described in the example in
+      <seealso marker="release_handling#appup">Release Handling</seealso>,
+    <c>ch_app.appup</c> looks as follows:</p>
     <code type="none">
 {"2",
  [{"1", [{load_module, ch3}]}],
  [{"1", [{load_module, ch3}]}]
 }.</code>
     <p>OTP also supports changing the internal state of behaviour
-      processes, see <seealso marker="#int_state">Changing Internal State</seealso> below.</p>
+      processes, see <seealso marker="#int_state">Changing Internal State</seealso>.</p>
   </section>
 
   <section>
@@ -77,26 +79,28 @@
     <p>In this case, simple code replacement is not sufficient.
       The process must explicitly transform its state using the callback
       function <c>code_change</c> before switching to the new version
-      of the callback module. Thus synchronized code replacement is
+      of the callback module. Thus, synchronized code replacement is
       used.</p>
-    <p>Example: Consider the gen_server <c>ch3</c> from the chapter
-      about the <seealso marker="gen_server_concepts#ex">gen_server behaviour</seealso>. The internal state is a term <c>Chs</c>
-      representing the available channels. Assume we want add a counter
-      <c>N</c> which keeps track of the number of <c>alloc</c> requests
-      so far. This means we need to change the format to
+    <p><em>Example:</em> Consider <c>gen_server</c> <c>ch3</c> from
+      <seealso marker="gen_server_concepts#ex">gen_server Behaviour</seealso>.
+      The internal state is a term <c>Chs</c>
+      representing the available channels. Assume you want to add a counter
+      <c>N</c>, which keeps track of the number of <c>alloc</c> requests
+      so far. This means that the format must be changed to
       <c>{Chs,N}</c>.</p>
-    <p>The <c>.appup</c> file could look as follows:</p>
+    <p>The <c>.appup</c> file can look as follows:</p>
     <code type="none">
 {"2",
  [{"1", [{update, ch3, {advanced, []}}]}],
  [{"1", [{update, ch3, {advanced, []}}]}]
 }.</code>
     <p>The third element of the <c>update</c> instruction is a tuple
-      <c>{advanced,Extra}</c> which says that the affected processes
-      should do a state transformation before loading the new version
+      <c>{advanced,Extra}</c>, which says that the affected processes
+      are to do a state transformation before loading the new version
       of the module. This is done by the processes calling the callback
-      function <c>code_change</c> (see <c>gen_server(3)</c>). The term
-      <c>Extra</c>, in this case [], is passed as-is to the function:</p>
+      function <c>code_change</c> (see the <c>gen_server(3)</c> manual
+      page in STDLIB). The term <c>Extra</c>, in this case
+      <c>[]</c>, is passed as is to the function:</p>
     <marker id="code_change"></marker>
     <code type="none">
 -module(ch3).
@@ -107,40 +111,41 @@ code_change({down, _Vsn}, {Chs, N}, _Extra) ->
     {ok, Chs};
 code_change(_Vsn, Chs, _Extra) ->
     {ok, {Chs, 0}}.</code>
-    <p>The first argument is <c>{down,Vsn}</c> in case of a downgrade,
-      or <c>Vsn</c> in case of an upgrade. The term <c>Vsn</c> is
-      fetched from the 'original' version of the module, i.e.
-      the version we are upgrading from, or downgrading to.</p>
+    <p>The first argument is <c>{down,Vsn}</c> if there is a downgrade,
+      or <c>Vsn</c> if there is a upgrade. The term <c>Vsn</c> is
+      fetched from the 'original' version of the module, that is,
+      the version you are upgrading from, or downgrading to.</p>
     <p>The version is defined by the module attribute <c>vsn</c>, if
       any. There is no such attribute in <c>ch3</c>, so in this case
-      the version is the checksum (a huge integer) of the BEAM file, an
-      uninteresting value which is ignored.</p>
-    <p>(The other callback functions of <c>ch3</c> need to be modified
-      as well and perhaps a new interface function added, this is not
-      shown here).</p>
+      the version is the checksum (a huge integer) of the beam file, an
+      uninteresting value, which is ignored.</p>
+    <p>The other callback functions of <c>ch3</c> must also be modified
+      and perhaps a new interface function must be added, but this is not
+      shown here.</p>
   </section>
 
   <section>
     <title>Module Dependencies</title>
-    <p>Assume we extend a module by adding a new interface function, as
-      in the example in <seealso marker="release_handling#appup">Release Handling</seealso>, where a function <c>available/0</c> is
-      added to <c>ch3</c>.</p>
-    <p>If we also add a call to this function, say in the module
-      <c>m1</c>, a run-time error could occur during release upgrade if
+    <p>Assume that a module is extended by adding an interface function,
+      as in the example in
+      <seealso marker="release_handling#appup">Release Handling</seealso>,
+      where a function <c>available/0</c> is added to <c>ch3</c>.</p>
+    <p>If a call is added to this function, say in module
+      <c>m1</c>, a runtime error could can occur during release upgrade if
       the new version of <c>m1</c> is loaded first and calls
       <c>ch3:available/0</c> before the new version of <c>ch3</c> is
       loaded.</p>
-    <p>Thus, <c>ch3</c> must be loaded before <c>m1</c> is, in
-      the upgrade case, and vice versa in the downgrade case. We say
-      that <c>m1</c><em>is dependent on</em><c>ch3</c>. In a release
-      handling instruction, this is expressed by the element
-      <c>DepMods</c>:</p>
+    <p>Thus, <c>ch3</c> must be loaded before <c>m1</c>, in
+      the upgrade case, and conversely in the downgrade case.
+      <c>m1</c> is said to be <em>dependent on</em> <c>ch3</c>. In a release
+      handling instruction, this is expressed by the
+      <c>DepMods</c> element:</p>
     <code type="none">
 {load_module, Module, DepMods}
 {update, Module, {advanced, Extra}, DepMods}</code>
     <p><c>DepMods</c> is a list of modules, on which <c>Module</c> is
       dependent.</p>
-    <p>Example: The module <c>m1</c> in the application <c>myapp</c> is
+    <p><em>Example:</em> The module <c>m1</c> in application <c>myapp</c> is
       dependent on <c>ch3</c> when upgrading from "1" to "2", or
       downgrading from "2" to "1":</p>
     <code type="none">
@@ -157,8 +162,8 @@ ch_app.appup:
  [{"1", [{load_module, ch3}]}],
  [{"1", [{load_module, ch3}]}]
 }.</code>
-    <p>If <c>m1</c> and <c>ch3</c> had belonged to the same application,
-      the <c>.appup</c> file could have looked like this:</p>
+    <p>If instead <c>m1</c> and <c>ch3</c> belong to the same application,
+      the <c>.appup</c> file can look as follows:</p>
     <code type="none">
 {"2",
  [{"1",
@@ -168,48 +173,48 @@ ch_app.appup:
    [{load_module, ch3},
     {load_module, m1, [ch3]}]}]
 }.</code>
-    <p>Note that it is <c>m1</c> that is dependent on <c>ch3</c> also
+    <p><c>m1</c> is dependent on <c>ch3</c> also
       when downgrading. <c>systools</c> knows the difference between
-      up- and downgrading and will generate a correct <c>relup</c>,
-      where <c>ch3</c> is loaded before <c>m1</c> when upgrading but
+      up- and downgrading and generates a correct <c>relup</c>,
+      where <c>ch3</c> is loaded before <c>m1</c> when upgrading, but
       <c>m1</c> is loaded before <c>ch3</c> when downgrading.</p>
   </section>
 
   <section>
     <marker id="spec"></marker>
-    <title>Changing Code For a Special Process</title>
+    <title>Changing Code for a Special Process</title>
     <p>In this case, simple code replacement is not sufficient.
       When a new version of a residence module for a special process
       is loaded, the process must make a fully qualified call to
-      its loop function to switch to the new code. Thus synchronized
+      its loop function to switch to the new code. Thus, synchronized
       code replacement must be used.</p>
     <note>
       <p>The name(s) of the user-defined residence module(s) must be
         listed in the <c>Modules</c> part of the child specification
-        for the special process, in order for the release handler to
+        for the special process. Otherwise the release handler cannot
         find the process.</p>
     </note>
-    <p>Example. Consider the example <c>ch4</c> from the chapter about
+    <p><em>Example:</em> Consider the example <c>ch4</c> in
       <seealso marker="spec_proc#ex">sys and proc_lib</seealso>.
-      When started by a supervisor, the child specification could look
-      like this:</p>
+      When started by a supervisor, the child specification can look
+      as follows:</p>
     <code type="none">
 {ch4, {ch4, start_link, []},
  permanent, brutal_kill, worker, [ch4]}</code>
     <p>If <c>ch4</c> is part of the application <c>sp_app</c> and a new
-      version of the module should be loaded when upgrading from
-      version "1" to "2" of this application, <c>sp_app.appup</c> could
-      look like this:</p>
+      version of the module is to be loaded when upgrading from
+      version "1" to "2" of this application, <c>sp_app.appup</c> can
+      look as follows:</p>
     <code type="none">
 {"2",
  [{"1", [{update, ch4, {advanced, []}}]}],
  [{"1", [{update, ch4, {advanced, []}}]}]
 }.</code>
     <p>The <c>update</c> instruction must contain the tuple
-      <c>{advanced,Extra}</c>. The instruction will make the special
+      <c>{advanced,Extra}</c>. The instruction makes the special
       process call the callback function <c>system_code_change/4</c>, a
       function the user must implement. The term <c>Extra</c>, in this
-      case [], is passed as-is to <c>system_code_change/4</c>:</p>
+      case <c>[]</c>, is passed as is to <c>system_code_change/4</c>:</p>
     <code type="none">
 -module(ch4).
 ...
@@ -218,39 +223,43 @@ ch_app.appup:
 
 system_code_change(Chs, _Module, _OldVsn, _Extra) ->
     {ok, Chs}.</code>
-    <p>The first argument is the internal state <c>State</c> passed from
-      the function <c>sys:handle_system_msg(Request, From, Parent, Module, Deb, State)</c>, called by the special process when
-      a system message is received. In <c>ch4</c>, the internal state is
-      the set of available channels <c>Chs</c>.</p>
-    <p>The second argument is the name of the module (<c>ch4</c>).</p>
-    <p>The third argument is <c>Vsn</c> or <c>{down,Vsn}</c> as
-      described for
-      <seealso marker="#code_change">gen_server:code_change/3</seealso>.</p>
+    <list type="bulleted">
+      <item>The first argument is the internal state <c>State</c>,
+      passed from function
+      <c>sys:handle_system_msg(Request, From, Parent, Module, Deb, State)</c>,
+      and called by the special process when a system message is received.
+      In <c>ch4</c>, the internal state is the set of available channels
+      <c>Chs</c>.</item>
+      <item>The second argument is the name of the module
+      (<c>ch4</c>).</item>
+      <item>The third argument is <c>Vsn</c> or <c>{down,Vsn}</c>, as
+      described for <c>gen_server:code_change/3</c> in
+      <seealso marker="#code_change">Changing Internal State</seealso>.</item>
+    </list>
     <p>In this case, all arguments but the first are ignored and
       the function simply returns the internal state again. This is
-      enough if the code only has been extended. If we had wanted to
-      change the internal state (similar to the example in
+      enough if the code only has been extended. If instead the
+      internal state is changed (similar to the example in
       <seealso marker="#int_state">Changing Internal State</seealso>),
-      it would have been done in this function and
-      <c>{ok,Chs2}</c> returned.</p>
+      this is done in this function and <c>{ok,Chs2}</c> returned.</p>
   </section>
 
   <section>
     <marker id="sup"></marker>
     <title>Changing a Supervisor</title>
     <p>The supervisor behaviour supports changing the internal state,
-      i.e. changing restart strategy and maximum restart frequency
-      properties, as well as changing existing child specifications.</p>
-    <p>Adding and deleting child processes are also possible, but not
+      that is, changing the restart strategy and maximum restart frequency
+      properties, as well as changing the existing child specifications.</p>
+    <p>Child processes can be added or deleted, but this is not
       handled automatically. Instructions must be given by in
       the <c>.appup</c> file.</p>
 
     <section>
       <title>Changing Properties</title>
-      <p>Since the supervisor should change its internal state,
+      <p>Since the supervisor is to change its internal state,
         synchronized code replacement is required. However,
         a special <c>update</c> instruction must be used.</p>
-      <p>The new version of the callback module must be loaded first
+      <p>First, the new version of the callback module must be loaded,
         both in the case of upgrade and downgrade. Then the new return
         value of <c>init/1</c> can be checked and the internal state be
         changed accordingly.</p>
@@ -258,16 +267,17 @@ system_code_change(Chs, _Module, _OldVsn, _Extra) ->
         supervisors:</p>
       <code type="none">
 {update, Module, supervisor}</code>
-      <p>Example: Assume we want to change the restart strategy of
-        <c>ch_sup</c> from the <seealso marker="sup_princ#ex">Supervisor Behaviour</seealso> chapter from one_for_one to one_for_all.
-        We change the callback function <c>init/1</c> in
-        <c>ch_sup.erl</c>:</p>
+      <p><em>Example:</em> To change the restart strategy of
+        <c>ch_sup</c> (from
+	<seealso marker="sup_princ#ex">Supervisor Behaviour</seealso>)
+	from <c>one_for_one</c> to <c>one_for_all</c>, change the callback
+	function <c>init/1</c> in <c>ch_sup.erl</c>:</p>
       <code type="none">
 -module(ch_sup).
 ...
 
 init(_Args) ->
-    {ok, {{one_for_all, 1, 60}, ...}}.</code>
+    {ok, {#{strategy => one_for_all, ...}, ...}}.</code>
       <p>The file <c>ch_app.appup</c>:</p>
       <code type="none">
 {"2",
@@ -280,7 +290,7 @@ init(_Args) ->
       <title>Changing Child Specifications</title>
       <p>The instruction, and thus the <c>.appup</c> file, when
         changing an existing child specification, is the same as when
-        changing properties as described above:</p>
+        changing properties as described earlier:</p>
       <code type="none">
 {"2",
  [{"1", [{update, ch_sup, supervisor}]}],
@@ -288,25 +298,25 @@ init(_Args) ->
 }.</code>
       <p>The changes do not affect existing child processes. For
         example, changing the start function only specifies how
-        the child process should be restarted, if needed later on.</p>
-      <p>Note that the id of the child specification cannot be changed.</p>
-      <p>Note also that changing the <c>Modules</c> field of the child
-        specification may affect the release handling process itself,
+        the child process is to be restarted, if needed later on.</p>
+      <p>The id of the child specification cannot be changed.</p>
+      <p>Changing the <c>Modules</c> field of the child
+        specification can affect the release handling process itself,
         as this field is used to identify which processes are affected
         when doing a synchronized code replacement.</p>
     </section>
     <marker id="sup_add"></marker>
 
     <section>
-      <title>Adding And Deleting Child Processes</title>
-      <p>As stated above, changing child specifications does not affect
+      <title>Adding and Deleting Child Processes</title>
+      <p>As stated earlier, changing child specifications does not affect
         existing child processes. New child specifications are
-        automatically added, but not deleted. Also, child processes are
-        not automatically started or terminated. Instead, this must be
-        done explicitly using <c>apply</c> instructions.</p>
-      <p>Example: Assume we want to add a new child process <c>m1</c> to
-        <c>ch_sup</c> when upgrading <c>ch_app</c> from "1" to "2".
-        This means <c>m1</c> should be deleted when downgrading from
+        automatically added, but not deleted. Child processes are
+        not automatically started or terminated, this must be
+        done using <c>apply</c> instructions.</p>
+      <p><em>Example:</em> Assume a new child process <c>m1</c> is to be
+        added to <c>ch_sup</c> when upgrading <c>ch_app</c> from "1" to "2".
+        This means <c>m1</c> is to be deleted when downgrading from
         "2" to "1":</p>
       <code type="none">
 {"2",
@@ -320,13 +330,13 @@ init(_Args) ->
     {update, ch_sup, supervisor}
    ]}]
 }.</code>
-      <p>Note that the order of the instructions is important.</p>
-      <p>Note also that the supervisor must be registered as
+      <p>The order of the instructions is important.</p>
+      <p>The supervisor must be registered as
         <c>ch_sup</c> for the script to work. If the supervisor is not
         registered, it cannot be accessed directly from the script.
         Instead a help function that finds the pid of the supervisor
-        and calls <c>supervisor:restart_child</c> etc. must be written,
-        and it is this function that should be called from the script
+        and calls <c>supervisor:restart_child</c>, and so on, must be
+	written. This function is then to be called from the script
         using the <c>apply</c> instruction.</p>
       <p>If the module <c>m1</c> is introduced in version "2" of
         <c>ch_app</c>, it must also be loaded when upgrading and
@@ -345,18 +355,18 @@ init(_Args) ->
     {delete_module, m1}
    ]}]
 }.</code>
-      <p>Note again that the order of the instructions is important.
-        When upgrading, <c>m1</c> must be loaded and the supervisor's
+      <p>As stated earlier, the order of the instructions is important.
+        When upgrading, <c>m1</c> must be loaded, and the supervisor
         child specification changed, before the new child process can
         be started. When downgrading, the child process must be
-        terminated before child specification is changed and the module
+        terminated before the child specification is changed and the module
         is deleted.</p>
     </section>
   </section>
 
   <section>
     <title>Adding or Deleting a Module</title>
-    <p>Example: A new functional module <c>m</c> is added to
+    <p><em>Example:</em> A new functional module <c>m</c> is added to
       <c>ch_app</c>:</p>
     <code type="none">
 {"2",
@@ -367,15 +377,16 @@ init(_Args) ->
   <section>
     <title>Starting or Terminating a Process</title>
     <p>In a system structured according to the OTP design principles,
-      any process would be a child process belonging to a supervisor,
-      see <seealso marker="#sup_add">Adding and Deleting Child Processes</seealso> above.</p>
+      any process would be a child process belonging to a supervisor, see
+      <seealso marker="#sup_add">Adding and Deleting Child Processes</seealso>
+      in Changing a Supervisor.</p>
   </section>
 
   <section>
     <title>Adding or Removing an Application</title>
     <p>When adding or removing an application, no <c>.appup</c> file
       is needed. When generating <c>relup</c>, the <c>.rel</c> files
-      are compared and <c>add_application</c> and
+      are compared and the <c>add_application</c> and
       <c>remove_application</c> instructions are added automatically.</p>
   </section>
 
@@ -383,11 +394,11 @@ init(_Args) ->
     <title>Restarting an Application</title>
     <p>Restarting an application is useful when a change is too
       complicated to be made without restarting the processes, for
-      example if the supervisor hierarchy has been restructured.</p>
-    <p>Example: When adding a new child <c>m1</c> to <c>ch_sup</c>, as
-      in the <seealso marker="#sup_add">example above</seealso>, an
-      alternative to updating the supervisor is to restart the entire
-      application:</p>
+      example, if the supervisor hierarchy has been restructured.</p>
+    <p><em>Example:</em> When adding a child <c>m1</c> to <c>ch_sup</c>, as in
+      <seealso marker="#sup_add">Adding and Deleting Child Processes</seealso>
+      in Changing a Supervisor, an alternative to updating
+      the supervisor is to restart the entire application:</p>
     <code type="none">
 {"2",
  [{"1", [{restart_application, ch_app}]}],
@@ -400,7 +411,7 @@ init(_Args) ->
     <title>Changing an Application Specification</title>
     <p>When installing a release, the application specifications are
       automatically updated before evaluating the <c>relup</c> script.
-      Hence, no instructions are  needed in the <c>.appup</c> file:</p>
+      Thus, no instructions are needed in the <c>.appup</c> file:</p>
     <pre>
 {"2",
  [{"1", []}],
@@ -412,28 +423,29 @@ init(_Args) ->
     <title>Changing Application Configuration</title>
     <p>Changing an application configuration by updating the <c>env</c>
       key in the <c>.app</c> file is an instance of changing an
-      application specification, <seealso marker="#app_spec">see above</seealso>.</p>
+      application specification, see the previous section.</p>
     <p>Alternatively, application configuration parameters can be
       added or updated in <c>sys.config</c>.</p>
   </section>
 
   <section>
     <title>Changing Included Applications</title>
-    <p>The release handling instructions for adding, removing and
+    <p>The release handling instructions for adding, removing, and
       restarting applications apply to primary applications only.
       There are no corresponding instructions for included
       applications. However, since an included application is really a
       supervision tree with a topmost supervisor, started as a child
       process to a supervisor in the including application, a
       <c>relup</c> file can be manually created.</p>
-    <p>Example: Assume we have a release containing an application
-      <c>prim_app</c> which have a supervisor <c>prim_sup</c> in its
+    <p><em>Example:</em> Assume there is a release containing an application
+      <c>prim_app</c>, which have a supervisor <c>prim_sup</c> in its
       supervision tree.</p>
-    <p>In a new version of the release, our example application
-      <c>ch_app</c> should be included in <c>prim_app</c>. That is,
-      its topmost supervisor <c>ch_sup</c> should be started as a child
+    <p>In a new version of the release, the application <c>ch_app</c>
+      is to be included in <c>prim_app</c>. That is,
+      its topmost supervisor <c>ch_sup</c> is to be started as a child
       process to <c>prim_sup</c>.</p>
-    <p>1) Edit the code for <c>prim_sup</c>:</p>
+    <p>The workflow is as follows:</p>
+    <p><em>Step 1)</em> Edit the code for <c>prim_sup</c>:</p>
     <code type="none">
 init(...) ->
     {ok, {...supervisor flags...,
@@ -441,7 +453,7 @@ init(...) ->
            {ch_sup, {ch_sup,start_link,[]},
             permanent,infinity,supervisor,[ch_sup]},
            ...]}}.</code>
-    <p>2) Edit the <c>.app</c> file for <c>prim_app</c>:</p>
+    <p><em>Step 2)</em> Edit the <c>.app</c> file for <c>prim_app</c>:</p>
     <code type="none">
 {application, prim_app,
  [...,
@@ -450,27 +462,29 @@ init(...) ->
   {included_applications, [ch_app]},
   ...
  ]}.</code>
-    <p>3) Create a new <c>.rel</c> file, including <c>ch_app</c>:</p>
+    <p><em>Step 3)</em> Create a new <c>.rel</c> file, including
+      <c>ch_app</c>:</p>
     <code type="none">
 {release,
  ...,
  [...,
   {prim_app, "2"},
   {ch_app, "1"}]}.</code>
+  <p>The included application can be started in two ways.
+  This is described in the next two sections.</p>
 
     <section>
       <title>Application Restart</title>
-      <p>4a) One way to start the included application is to restart
-        the entire <c>prim_app</c> application. Normally, we would then
-        use the <c>restart_application</c> instruction in
-        the <c>.appup</c> file for <c>prim_app</c>.</p>
-      <p>However, if we did this and then generated a <c>relup</c> file,
-        not only would it contain instructions for restarting (i.e.
+      <p><em>Step 4a)</em> One way to start the included application is to
+        restart the entire <c>prim_app</c> application. Normally, the
+	<c>restart_application</c> instruction in the <c>.appup</c> file
+        for <c>prim_app</c> would be used.</p>
+      <p>However, if this is done and a <c>relup</c> file is generated,
+        not only would it contain instructions for restarting (that is,
         removing and adding) <c>prim_app</c>, it would also contain
         instructions for starting <c>ch_app</c> (and stopping it, in
-        the case of downgrade). This is due to the fact that
-        <c>ch_app</c> is included in the new <c>.rel</c> file, but not
-        in the old one.</p>
+        the case of downgrade). This is because <c>ch_app</c> is included
+	in the new <c>.rel</c> file, but not in the old one.</p>
       <p>Instead, a correct <c>relup</c> file can be created manually,
         either from scratch or by editing the generated version.
         The instructions for starting/stopping <c>ch_app</c> are
@@ -512,7 +526,8 @@ init(...) ->
 
     <section>
       <title>Supervisor Change</title>
-      <p>4b) Another way to start the included application (or stop it
+      <p><em>Step 4b)</em> Another way to start the included
+        application (or stop it
         in the case of downgrade) is by combining instructions for
         adding and removing child processes to/from <c>prim_sup</c> with
         instructions for loading/unloading all <c>ch_app</c> code and
@@ -521,7 +536,7 @@ init(...) ->
         scratch or by editing a generated version. Load all code for
         <c>ch_app</c> first, and also load the application
         specification, before <c>prim_sup</c> is updated. When
-        downgrading, <c>prim_sup</c> should be updated first, before
+        downgrading, <c>prim_sup</c> is to updated first, before
         the code for <c>ch_app</c> and its application specification
         are unloaded.</p>
       <code type="none">
@@ -560,10 +575,10 @@ init(...) ->
   <section>
     <title>Changing Non-Erlang Code</title>
     <p>Changing code for a program written in another programming
-      language than Erlang, for example a port program, is very
-      application dependent and OTP provides no special support for it.</p>
-    <p>Example, changing code for a port program: Assume that
-      the Erlang process controlling the port is a gen_server
+      language than Erlang, for example, a port program, is
+      application-dependent and OTP provides no special support for it.</p>
+    <p><em>Example:</em> When changing code for a port program, assume that
+      the Erlang process controlling the port is a <c>gen_server</c>
       <c>portc</c> and that the port is opened in the callback function
       <c>init/1</c>:</p>
     <code type="none">
@@ -573,10 +588,11 @@ init(...) ->
     Port = open_port({spawn,PortPrg}, [...]),
     ...,
     {ok, #state{port=Port, ...}}.</code>
-    <p>If the port program should be updated, we can extend the code for
-      the gen_server with a <c>code_change</c> function which closes
-      the old port and opens a new port. (If necessary, the gen_server
-      may first request data that needs to be saved from the port
+    <p>If the port program is to be updated, the code for the
+      <c>gen_server</c> can be extended with a <c>code_change</c> function,
+      which closes the old port and opens a new port.
+      (If necessary, the <c>gen_server</c> can
+      first request data that must be saved from the port
       program and pass this data to the new port):</p>
     <code type="none">
 code_change(_OldVsn, State, port) ->
@@ -595,8 +611,8 @@ code_change(_OldVsn, State, port) ->
  [{"1", [{update, portc, {advanced,port}}]}],
  [{"1", [{update, portc, {advanced,port}}]}]
 ].</code>
-    <p>Make sure the <c>priv</c> directory where the C program is
-      located is included in the new release package:</p>
+    <p>Ensure that the <c>priv</c> directory, where the C program is
+      located, is included in the new release package:</p>
     <pre>
 1> <input>systools:make_tar("my_release", [{dirs,[priv]}]).</input>
 ...</pre>
@@ -604,28 +620,29 @@ code_change(_OldVsn, State, port) ->
 
   <section>
     <title>Emulator Restart and Upgrade</title>
-    <p>There are two upgrade instructions that will restart the emulator:</p>
-    <taglist>
-      <tag><c>restart_new_emulator</c></tag>
-      <item>Intended for when erts, kernel, stdlib or sasl is
-        upgraded. It is automatically added when the relup file is
-        generated by <c>systools:make_relup/3,4</c>. It is executed
-        before all other upgrade instructions. See
-        <seealso marker="release_handling#restart_new_emulator_instr">Release
-        Handling</seealso> for more information about this
-        instruction.</item>
-      <tag><c>restart_emulator</c></tag>
-      <item>Used when a restart of the emulator is required after all
-        other upgrade instructions are executed. See
-        <seealso marker="release_handling#restart_emulator_instr">Release
-        Handling</seealso> for more information about this
-        instruction.</item>
-    </taglist>
-
+    <p>Two upgrade instructions restart the emulator:</p>
+    <list type="bulleted">
+      <item><p><c>restart_new_emulator</c></p>
+      <p>Intended when ERTS, Kernel, STDLIB, or
+      SASL is upgraded. It is automatically added when the
+      <c>relup</c> file is generated by <c>systools:make_relup/3,4</c>.
+      It is executed before all other upgrade instructions.
+      For more information about this instruction, see
+      restart_new_emulator (Low-Level) in
+      <seealso marker="release_handling#restart_new_emulator_instr">Release Handling Instructions</seealso>.
+      </p></item>
+      <item><p><c>restart_emulator</c></p>
+      <p>Used when a restart of the emulator is required after all
+      other upgrade instructions are executed.
+      For more information about this instruction, see
+      restart_emulator (Low-Level) in
+      <seealso marker="release_handling#restart_emulator_instr">Release Handling Instructions</seealso>.
+      </p></item>
+    </list>
     <p>If an emulator restart is necessary and no upgrade instructions
-      are needed, i.e. if the restart itself is enough for the
-      upgraded applications to start running the new versions, a very
-      simple <c>.relup</c> file can be created manually:</p>
+      are needed, that is, if the restart itself is enough for the
+      upgraded applications to start running the new versions, a
+      simple <c>relup</c> file can be created manually:</p>
     <code type="none">
 {"B",
  [{"A",
@@ -637,26 +654,27 @@ code_change(_OldVsn, State, port) ->
 }.</code>
     <p>In this case, the release handler framework with automatic
       packing and unpacking of release packages, automatic path
-      updates etc. can be used without having to specify <c>.appup</c>
-      files.</p>
+      updates, and so on, can be used without having to specify
+      <c>.appup</c> files.</p>
   </section>
 
   <section>
-    <title>Emulator Upgrade from pre OTP R15</title>
+    <title>Emulator Upgrade From Pre OTP R15</title>
     <p>From OTP R15, an emulator upgrade is performed by restarting
     the emulator with new versions of the core applications
-    (<c>kernel</c>, <c>stdlib</c> and <c>sasl</c>) before loading code
+    (Kernel, STDLIB, and SASL) before loading code
     and running upgrade instruction for other applications. For this
-    to work, the release to upgrade from must includes OTP R15 or
-    later. For the case where the release to upgrade from includes an
-    earlier emulator version, <c>systools:make_relup</c> will create a
+    to work, the release to upgrade from must include OTP R15 or
+    later.</p>
+    <p>For the case where the release to upgrade from includes an
+    earlier emulator version, <c>systools:make_relup</c> creates a
     backwards compatible relup file. This means that all upgrade
-    instructions will be executed before the emulator is
-    restarted. The new application code will therefore be loaded into
+    instructions are executed before the emulator is
+    restarted. The new application code is therefore loaded into
     the old emulator. If the new code is compiled with the new
-    emulator, there might be cases where the beam format has changed
-    and beam files can not be loaded. To overcome this problem, the
-    new code should be compiled with the old emulator.</p>
+    emulator, there can be cases where the beam format has changed
+    and beam files cannot be loaded. To overcome this problem, compile
+    the new code with the old emulator.</p>
   </section>
 </chapter>
 
diff --git a/system/doc/design_principles/des_princ.xml b/system/doc/design_principles/des_princ.xml
index e8f289b905..77c61eafb0 100644
--- a/system/doc/design_principles/des_princ.xml
+++ b/system/doc/design_principles/des_princ.xml
@@ -28,50 +28,52 @@
     <rev></rev>
     <file>des_princ.xml</file>
   </header>
-  <p>The <em>OTP Design Principles</em> is a set of principles for how
-    to structure Erlang code in terms of processes, modules and
-    directories.</p>
+  <marker id="otp design principles"></marker>
+  <p>The <em>OTP design principles</em> define how to
+    structure Erlang code in terms of processes, modules,
+    and directories.</p>
 
   <section>
     <title>Supervision Trees</title>
     <p>A basic concept in Erlang/OTP is the <em>supervision tree</em>.
       This is a process structuring model based on the idea of
-      <em>workers</em> and <em>supervisors</em>.</p>
+      <em>workers</em> and <em>supervisors</em>:</p>
     <list type="bulleted">
-      <item>Workers are processes which perform computations, that is,
+      <item>Workers are processes that perform computations, that is,
        they do the actual work.</item>
-      <item>Supervisors are processes which monitor the behaviour of
+      <item>Supervisors are processes that monitor the behaviour of
        workers. A supervisor can restart a worker if something goes
        wrong.</item>
       <item>The supervision tree is a hierarchical arrangement of
-       code into supervisors and workers, making it possible to
+       code into supervisors and workers, which makes it possible to
        design and program fault-tolerant software.</item>
     </list>
+    <p>In the following figure, square boxes represents supervisors and
+      circles represent workers:</p>
     <marker id="sup6"></marker>
     <image file="../design_principles/sup6.gif">
       <icaption>Supervision Tree</icaption>
     </image>
-    <p>In the figure above, square boxes represents supervisors and
-      circles represent workers.</p>
   </section>
 
   <section>
     <title>Behaviours</title>
     <p>In a supervision tree, many of the processes have similar
       structures, they follow similar patterns. For example,
-      the supervisors are very similar in structure. The only difference
-      between them is which child processes they supervise. Also, many
-      of the workers are servers in a server-client relation, finite
-      state machines, or event handlers such as error loggers.</p>
+      the supervisors are similar in structure. The only difference
+      between them is which child processes they supervise. Many
+      of the workers are servers in a server-client relation,
+      finite-state machines, or event handlers such as error loggers.</p>
     <p><em>Behaviours</em> are formalizations of these common patterns.
       The idea is to divide the code for a process in a generic part
-      (a behaviour module) and a specific part (a <em>callback module</em>).</p>
+      (a behaviour module) and a specific part (a
+      <em>callback module</em>).</p>
     <p>The behaviour module is part of Erlang/OTP. To implement a
       process such as a supervisor, the user only has to implement
-      the callback module which should export a pre-defined set of
+      the callback module which is to export a pre-defined set of
       functions, the <em>callback functions</em>.</p>
-    <p>An example to illustrate how code can be divided into a generic
-      and a specific part: Consider the following code (written in
+    <p>The following example illustrate how code can be divided into a
+      generic and a specific part. Consider the following code (written in
       plain Erlang) for a simple server, which keeps track of a number
       of "channels". Other processes can allocate and free the channels
       by calling the functions <c>alloc/0</c> and <c>free/1</c>,
@@ -149,7 +151,7 @@ loop(Mod, State) ->
             State2 = Mod:handle_cast(Req, State),
             loop(Mod, State2)
     end.</code>
-    <p>and a callback module <c>ch2.erl</c>:</p>
+    <p>And a callback module <c>ch2.erl</c>:</p>
     <code type="none">
 -module(ch2).
 -export([start/0]).
@@ -173,27 +175,27 @@ handle_call(alloc, Chs) ->
 
 handle_cast({free, Ch}, Chs) ->
     free(Ch, Chs). % => Chs2</code>
-    <p>Note the following:</p>
+    <p>Notice the following:</p>
     <list type="bulleted">
-      <item>The code in <c>server</c> can be re-used to build many
+      <item>The code in <c>server</c> can be reused to build many
        different servers.</item>
-      <item>The name of the server, in this example the atom
-      <c>ch2</c>, is hidden from the users of the client functions.
-       This means the name can be changed without affecting them.</item>
+      <item>The server name, in this example the atom
+      <c>ch2</c>, is hidden from the users of the client functions. This
+       means that the name can be changed without affecting them.</item>
       <item>The protcol (messages sent to and received from the server)
-       is hidden as well. This is good programming practice and allows
-       us to change the protocol without making changes to code using
+       is also hidden. This is good programming practice and allows
+       one to change the protocol without changing the code using
        the interface functions.</item>
-      <item>We can extend the functionality of <c>server</c>, without
+      <item>The functionality of <c>server</c> can be extended without
        having to change <c>ch2</c> or any other callback module.</item>
     </list>
-    <p>(In <c>ch1.erl</c> and <c>ch2.erl</c> above, the implementation
-      of <c>channels/0</c>, <c>alloc/1</c> and <c>free/2</c> has been
+    <p>In <c>ch1.erl</c> and <c>ch2.erl</c> above, the implementation
+      of <c>channels/0</c>, <c>alloc/1</c>, and <c>free/2</c> has been
       intentionally left out, as it is not relevant to the example.
       For completeness, one way to write these functions are given
-      below. Note that this is an example only, a realistic
+      below. This is an example only, a realistic
       implementation must be able to handle situations like running out
-      of channels to allocate etc.)</p>
+      of channels to allocate, and so on.</p>
     <code type="none">
 channels() ->
    {_Allocated = [], _Free = lists:seq(1,100)}.
@@ -208,30 +210,30 @@ free(Ch, {Alloc, Free} = Channels) ->
       false ->
          Channels
    end.        </code>
-    <p>Code written without making use of behaviours may be more
-      efficient, but the increased efficiency will be at the expense of
+    <p>Code written without using behaviours can be more
+      efficient, but the increased efficiency is at the expense of
       generality. The ability to manage all applications in the system
-      in a consistent manner is very important.</p>
+      in a consistent manner is important.</p>
     <p>Using behaviours also makes it easier to read and understand
-      code written by other programmers. Ad hoc programming structures,
+      code written by other programmers. Improvised programming structures,
       while possibly more efficient, are always more difficult to
       understand.</p>
-    <p>The module <c>server</c> corresponds, greatly simplified,
+    <p>The <c>server</c> module corresponds, greatly simplified,
       to the Erlang/OTP behaviour <c>gen_server</c>.</p>
     <p>The standard Erlang/OTP behaviours are:</p>
-    <taglist>
-      <tag><seealso marker="gen_server_concepts">gen_server</seealso></tag>
-      <item>For implementing the server of a client-server relation.</item>
-      <tag><seealso marker="fsm">gen_fsm</seealso></tag>
-      <item>For implementing finite state machines.</item>
-      <tag><seealso marker="events">gen_event</seealso></tag>
-      <item>For implementing event handling functionality.</item>
-      <tag><seealso marker="sup_princ">supervisor</seealso></tag>
-      <item>For implementing a supervisor in a supervision tree.</item>
-    </taglist>
+    <list type="bulleted">
+      <item><p><seealso marker="gen_server_concepts">gen_server</seealso></p>
+      <p>For implementing the server of a client-server relation</p></item>
+      <item><p><seealso marker="fsm">gen_fsm</seealso></p>
+      <p>For implementing finite-state machines</p></item>
+      <item><p><seealso marker="events">gen_event</seealso></p>
+      <p>For implementing event handling functionality</p></item>
+      <item><p><seealso marker="sup_princ">supervisor</seealso></p>
+      <p>For implementing a supervisor in a supervision tree</p></item>
+      </list>
     <p>The compiler understands the module attribute
       <c>-behaviour(Behaviour)</c> and issues warnings about
-      missing callback functions. Example:</p>
+      missing callback functions, for example:</p>
     <code type="none">
 -module(chs3).
 -behaviour(gen_server).
@@ -248,13 +250,17 @@ free(Ch, {Alloc, Free} = Channels) ->
       some specific functionality. Components are with Erlang/OTP
       terminology called <em>applications</em>. Examples of Erlang/OTP
       applications are Mnesia, which has everything needed for
-      programming database services, and Debugger which is used to
-      debug Erlang programs. The minimal system based on Erlang/OTP
-      consists of the applications Kernel and STDLIB.</p>
+      programming database services, and Debugger, which is used
+      to debug Erlang programs. The minimal system based on Erlang/OTP
+      consists of the following two applications:</p>
+      <list type="bulleted">
+	<item>Kernel - Functionality necessary to run Erlang</item>
+	<item>STDLIB - Erlang standard libraries</item>
+      </list>
     <p>The application concept applies both to program structure
       (processes) and directory structure (modules).</p>
-    <p>The simplest kind of application does not have any processes,
-      but consists of a collection of functional modules. Such an
+    <p>The simplest applications do not have any processes,
+      but consist of a collection of functional modules. Such an
       application is called a <em>library application</em>. An example
       of a library application is STDLIB.</p>
     <p>An application with processes is easiest implemented as a
@@ -266,12 +272,11 @@ free(Ch, {Alloc, Free} = Channels) ->
   <section>
     <title>Releases</title>
     <p>A <em>release</em> is a complete system made out from a subset of
-      the Erlang/OTP applications and a set of user-specific
-      applications.</p>
+      Erlang/OTP applications and a set of user-specific applications.</p>
     <p>How to program releases is described in
       <seealso marker="release_structure">Releases</seealso>.</p>
     <p>How to install a release in a target environment is described
-      in the chapter about Target Systems in System Principles.</p>
+      in the section about target systems in Section 2 System Principles.</p>
   </section>
 
   <section>
diff --git a/system/doc/design_principles/distributed_applications.xml b/system/doc/design_principles/distributed_applications.xml
index 2886f06b53..f40a24fdf5 100644
--- a/system/doc/design_principles/distributed_applications.xml
+++ b/system/doc/design_principles/distributed_applications.xml
@@ -28,71 +28,73 @@
     <rev></rev>
     <file>distributed_applications.xml</file>
   </header>
+  <marker id="distributed appl"></marker>
 
   <section>
-    <title>Definition</title>
-    <p>In a distributed system with several Erlang nodes, there may be
-      a need to control applications in a distributed manner. If
+    <title>Introduction</title>
+    <p>In a distributed system with several Erlang nodes, it can be
+      necessary to control applications in a distributed manner. If
       the node, where a certain application is running, goes down,
-      the application should be restarted at another node.</p>
+      the application is to be restarted at another node.</p>
     <p>Such an application is called a <em>distributed application</em>.
-      Note that it is the control of the application which is
-      distributed, all applications can of course be distributed in
-      the sense that they, for example, use services on other nodes.</p>
-    <p>Because a distributed application may move between nodes, some
+      Notice that it is the control of the application that is distributed.
+      All applications can be distributed in the sense that they,
+      for example, use services on other nodes.</p>
+    <p>Since a distributed application can move between nodes, some
       addressing mechanism is required to ensure that it can be
       addressed by other applications, regardless on which node it
       currently executes. This issue is not addressed here, but the
-      Kernel module <c>global</c> or STDLIB module <c>pg</c> can be
-      used for this purpose.</p>
+      <c>global</c> or <c>pg2</c> modules in Kernel
+      can be used for this purpose.</p>
   </section>
 
   <section>
     <title>Specifying Distributed Applications</title>
     <p>Distributed applications are controlled by both the application
-      controller and a distributed application controller process,
-      <c>dist_ac</c>. Both these processes are part of the <c>kernel</c>
-      application. Therefore, distributed applications are specified by
-      configuring the <c>kernel</c> application, using the following
-      configuration parameter (see also <c>kernel(6)</c>):</p>
-    <taglist>
-      <tag><c>distributed = [{Application, [Timeout,] NodeDesc}]</c></tag>
-      <item>
-        <p>Specifies where the application <c>Application = atom()</c>
-          may execute. <c>NodeDesc = [Node | {Node,...,Node}]</c> is
-          a list of node names in priority order. The order between
-          nodes in a tuple is undefined.</p>
-        <p><c>Timeout = integer()</c> specifies how many milliseconds to
-          wait before restarting the application at another node.
-          Defaults to 0.</p>
-      </item>
-    </taglist>
+    controller and a distributed application controller process,
+    <c>dist_ac</c>. Both these processes are part of the Kernel
+    application. Distributed applications are thus specified by
+    configuring the Kernel application, using the following
+    configuration parameter (see also <c>kernel(6)</c>):</p>
+    <p><c>distributed = [{Application, [Timeout,] NodeDesc}]</c></p>
+    <list type="bulleted">
+      <item>Specifies where the application <c>Application = atom()</c>
+      can execute.</item>
+      <item>><c>NodeDesc = [Node | {Node,...,Node}]</c> is a list of
+      node names in priority order. The order between nodes in a tuple
+      is undefined.</item>
+      <item><c>Timeout = integer()</c> specifies how many milliseconds
+      to wait before restarting the application at another node. It
+      defaults to 0.</item>
+    </list>
     <p>For distribution of application control to work properly,
-      the nodes where a distributed application may run must contact
+      the nodes where a distributed application can run must contact
       each other and negotiate where to start the application. This is
-      done using the following <c>kernel</c> configuration parameters:</p>
-    <taglist>
-      <tag><c>sync_nodes_mandatory = [Node]</c></tag>
-      <item>Specifies which other nodes must be started (within
-       the timeout specified by <c>sync_nodes_timeout</c>.</item>
-      <tag><c>sync_nodes_optional = [Node]</c></tag>
-      <item>Specifies which other nodes can be started (within
-       the timeout specified by <c>sync_nodes_timeout</c>.</item>
-      <tag><c>sync_nodes_timeout = integer() | infinity</c></tag>
-      <item>Specifies how many milliseconds to wait for the other nodes
-       to start.</item>
-    </taglist>
-    <p>When started, the node will wait for all nodes specified by
+      done using the following configuration parameters in
+      Kernel:</p>
+      <list type="bulleted">
+	<item><c>sync_nodes_mandatory = [Node]</c> - Specifies which
+	other nodes must be started (within the time-out specified by
+	<c>sync_nodes_timeout</c>).</item>
+	<item><c>sync_nodes_optional = [Node]</c> - Specifies which
+	other nodes can be started (within the time-out specified by
+	<c>sync_nodes_timeout</c>).</item>
+	<item><c>sync_nodes_timeout = integer() | infinity</c> -
+	Specifies how many milliseconds to wait for the other nodes to
+	start.</item>
+      </list>
+    <p>When started, the node waits for all nodes specified by
       <c>sync_nodes_mandatory</c> and <c>sync_nodes_optional</c> to
-      come up. When all nodes have come up, or when all mandatory nodes
-      have come up and the time specified by <c>sync_nodes_timeout</c>
-      has elapsed, all applications will be started. If not all
-      mandatory nodes have come up, the node will terminate.</p>
-    <p>Example: An application <c>myapp</c> should run at the node
-      <c>cp1@cave</c>. If this node goes down, <c>myapp</c> should
+      come up. When all nodes are up, or when all mandatory nodes
+      are up and the time specified by <c>sync_nodes_timeout</c>
+      has elapsed, all applications start. If not all
+      mandatory nodes are up, the node terminates.</p>
+    <p><em>Example:</em></p>
+    <p>An application <c>myapp</c> is to run at the node
+      <c>cp1@cave</c>. If this node goes down, <c>myapp</c> is to
       be restarted at <c>cp2@cave</c> or <c>cp3@cave</c>. A system
-      configuration file <c>cp1.config</c> for <c>cp1@cave</c> could
-      look like:</p>
+      configuration file <c>cp1.config</c> for <c>cp1@cave</c> can
+      look as follows:</p>
     <code type="none">
 [{kernel,
   [{distributed, [{myapp, 5000, [cp1@cave, {cp2@cave, cp3@cave}]}]},
@@ -103,13 +105,13 @@
 ].</code>
     <p>The system configuration files for <c>cp2@cave</c> and
       <c>cp3@cave</c> are identical, except for the list of mandatory
-      nodes which should be <c>[cp1@cave, cp3@cave]</c> for
+      nodes, which is to be <c>[cp1@cave, cp3@cave]</c> for
       <c>cp2@cave</c> and <c>[cp1@cave, cp2@cave]</c> for
       <c>cp3@cave</c>.</p>
     <note>
       <p>All involved nodes must have the same value for
-        <c>distributed</c> and <c>sync_nodes_timeout</c>, or
-        the behaviour of the system is undefined.</p>
+        <c>distributed</c> and <c>sync_nodes_timeout</c>.
+        Otherwise the system behaviour is undefined.</p>
     </note>
   </section>
 
@@ -117,28 +119,29 @@
     <title>Starting and Stopping Distributed Applications</title>
     <p>When all involved (mandatory) nodes have been started,
       the distributed application can be started by calling
-      <c>application:start(Application)</c> at <em>all of these nodes.</em></p>
-    <p>It is of course also possible to use a boot script (see
-      <seealso marker="release_structure">Releases</seealso>) which
-      automatically starts the application.</p>
-    <p>The application will be started at the first node, specified
-      by the <c>distributed</c> configuration parameter, which is up
-      and running. The application is started as usual. That is, an
-      application master is created and calls the application callback
-      function:</p>
+      <c>application:start(Application)</c> at <em>all of these
+      nodes.</em></p>
+    <p>A boot script (see
+      <seealso marker="release_structure">Releases</seealso>)
+      can be used that automatically starts the application.</p>
+    <p>The application is started at the first operational node that
+      is listed in the list of nodes in the <c>distributed</c>
+      configuration parameter. The application is started as usual.
+      That is, an application master is created and calls the
+      application callback function:</p>
     <code type="none">
 Module:start(normal, StartArgs)</code>
-    <p>Example: Continuing the example from the previous section,
-      the three nodes are started, specifying the system configuration
-      file:</p>
+    <p>Example:</p>
+    <p>Continuing the example from the previous section, the three nodes
+    are started, specifying the system configuration file:</p>
     <pre>
 > <input>erl -sname cp1 -config cp1</input>
 > <input>erl -sname cp2 -config cp2</input>
 > <input>erl -sname cp3 -config cp3</input></pre>
-    <p>When all nodes are up and running, <c>myapp</c> can be started.
+    <p>When all nodes are operational, <c>myapp</c> can be started.
       This is achieved by calling <c>application:start(myapp)</c> at
       all three nodes. It is then started at <c>cp1</c>, as shown in
-      the figure below.</p>
+      the following figure:</p>
     <marker id="dist1"></marker>
     <image file="../design_principles/dist1.gif">
       <icaption>Application myapp - Situation 1</icaption>
@@ -150,31 +153,33 @@ Module:start(normal, StartArgs)</code>
   <section>
     <title>Failover</title>
     <p>If the node where the application is running goes down,
-      the application is restarted (after the specified timeout) at
-      the first node, specified by the <c>distributed</c> configuration
-      parameter, which is up and running. This is called a
+      the application is restarted (after the specified time-out) at
+      the first operational node that is listed in the list of nodes
+      in the <c>distributed</c> configuration parameter. This is called a
       <em>failover</em>.</p>
     <p>The application is started the normal way at the new node,
       that is, by the application master calling:</p>
     <code type="none">
 Module:start(normal, StartArgs)</code>
-    <p>Exception: If the application has the <c>start_phases</c> key
-      defined (see <seealso marker="included_applications">Included Applications</seealso>), then the application is instead started
-      by calling:</p>
+    <p>An exception is if the application has the <c>start_phases</c>
+      key defined
+      (see <seealso marker="included_applications">Included Applications</seealso>).
+      The application is then instead started by calling:</p>
     <code type="none">
 Module:start({failover, Node}, StartArgs)</code>
-    <p>where <c>Node</c> is the terminated node.</p>
-    <p>Example: If <c>cp1</c> goes down, the system checks which one of
+    <p>Here <c>Node</c> is the terminated node.</p>
+    <p><em>Example:</em></p>
+    <p> If <c>cp1</c> goes down, the system checks which one of
       the other nodes, <c>cp2</c> or <c>cp3</c>, has the least number of
       running applications, but waits for 5 seconds for <c>cp1</c> to
       restart. If <c>cp1</c> does not restart and <c>cp2</c> runs fewer
-      applications than <c>cp3,</c> then <c>myapp</c> is restarted on
+      applications than <c>cp3</c>, <c>myapp</c> is restarted on
       <c>cp2</c>.</p>
     <marker id="dist2"></marker>
     <image file="../design_principles/dist2.gif">
       <icaption>Application myapp - Situation 2</icaption>
     </image>
-    <p>Suppose now that <c>cp2</c> goes down as well and does not
+    <p>Suppose now that <c>cp2</c> goes also down and does not
       restart within 5 seconds. <c>myapp</c> is now restarted on
       <c>cp3</c>.</p>
     <marker id="dist3"></marker>
@@ -186,28 +191,29 @@ Module:start({failover, Node}, StartArgs)</code>
   <section>
     <title>Takeover</title>
     <p>If a node is started, which has higher priority according
-      to <c>distributed</c>, than the node where a distributed
-      application is currently running, the application will be
-      restarted at the new node and stopped at the old node. This is
+      to <c>distributed</c> than the node where a distributed
+      application is running, the application is restarted at the
+      new node and stopped at the old node. This is
       called a <em>takeover</em>.</p>
     <p>The application is started by the application master calling:</p>
     <code type="none">
 Module:start({takeover, Node}, StartArgs)</code>
-    <p>where <c>Node</c> is the old node.</p>
-    <p>Example: If <c>myapp</c> is running at <c>cp3</c>, and if
-      <c>cp2</c> now restarts, it will not restart <c>myapp</c>,
-      because the order between nodes <c>cp2</c> and <c>cp3</c> is
+    <p>Here <c>Node</c> is the old node.</p>
+    <p><em>Example: </em></p>
+    <p>If <c>myapp</c> is running at <c>cp3</c>, and if
+      <c>cp2</c> now restarts, it does not restart <c>myapp</c>,
+      as the order between the <c>cp2</c> and <c>cp3</c> nodes is
       undefined.</p>
     <marker id="dist4"></marker>
     <image file="../design_principles/dist4.gif">
       <icaption>Application myapp - Situation 4</icaption>
     </image>
-    <p>However, if <c>cp1</c> restarts as well, the function
+    <p>However, if <c>cp1</c> also restarts, the function
       <c>application:takeover/2</c> moves <c>myapp</c> to <c>cp1</c>,
-      because <c>cp1</c> has a higher priority than <c>cp3</c> for this
-      application.  In this case,
-      <c>Module:start({takeover, cp3@cave}, StartArgs)</c> is executed
-      at <c>cp1</c> to start the application.</p>
+      as <c>cp1</c> has a higher priority than <c>cp3</c> for this
+      application. In this case,
+      <c>Module:start({takeover, cp3@cave}, StartArgs)</c> is
+      executed at <c>cp1</c> to start the application.</p>
     <marker id="dist5"></marker>
     <image file="../design_principles/dist5.gif">
       <icaption>Application myapp - Situation 5</icaption>
diff --git a/system/doc/design_principles/events.xml b/system/doc/design_principles/events.xml
index 529e12c216..6e5afb939e 100644
--- a/system/doc/design_principles/events.xml
+++ b/system/doc/design_principles/events.xml
@@ -21,7 +21,7 @@
     
     </legalnotice>
 
-    <title>Gen_Event Behaviour</title>
+    <title>gen_event Behaviour</title>
     <prepared></prepared>
     <docno></docno>
     <date></date>
@@ -29,35 +29,36 @@
     <file>events.xml</file>
   </header>
   <marker id="gen_event"></marker>
-  <p>This chapter should be read in conjunction with
-    <c>gen_event(3)</c>, where all interface functions and callback
-    functions are described in detail.</p>
+  <p>This section is to be read with the <c>gen_event(3)</c> manual
+  page in STDLIB, where all interface functions and callback
+  functions are described in detail.</p>
 
   <section>
     <title>Event Handling Principles</title>
     <p>In OTP, an <em>event manager</em> is a named object to which
-      events can be sent. An <em>event</em> could be, for example,
-      an error, an alarm or some information that should be logged.</p>
-    <p>In the event manager, zero, one or several <em>event handlers</em> are installed. When the event manager is notified
-      about an event, the event will be processed by all the installed
+      events can be sent. An <em>event</em> can be, for example,
+      an error, an alarm, or some information that is to be logged.</p>
+    <p>In the event manager, zero, one, or many <em>event handlers</em>
+      are installed. When the event manager is notified
+      about an event, the event is processed by all the installed
       event handlers. For example, an event manager for handling errors
-      can by default have a handler installed which writes error
+      can by default have a handler installed, which writes error
       messages to the terminal. If the error messages during a certain
-      period should be saved to a file as well, the user adds another
-      event handler which does this. When logging to file is no longer
-      necessary, this event handler is deleted.</p>
+      period is to be saved to a file as well, the user adds another
+      event handler that does this. When logging to the file is no
+      longer necessary, this event handler is deleted.</p>
     <p>An event manager is implemented as a process and each event
       handler is implemented as a callback module.</p>
     <p>The event manager essentially maintains a list of
       <c>{Module, State}</c> pairs, where each <c>Module</c> is an
-      event handler, and <c>State</c> the internal state of that event
-      handler.</p>
+      event handler, and <c>State</c> is the internal state of that
+      event handler.</p>
   </section>
 
   <section>
     <title>Example</title>
     <p>The callback module for the event handler writing error messages
-      to the terminal could look like:</p>
+      to the terminal can look as follows:</p>
     <code type="none">
 -module(terminal_logger).
 -behaviour(gen_event).
@@ -74,7 +75,7 @@ handle_event(ErrorMsg, State) ->
 terminate(_Args, _State) ->
     ok.</code>
     <p>The callback module for the event handler writing error messages
-      to a file could look like:</p>
+      to a file can look as follows:</p>
     <code type="none">
 -module(file_logger).
 -behaviour(gen_event).
@@ -98,29 +99,28 @@ terminate(_Args, Fd) ->
     <marker id="mgr"></marker>
     <title>Starting an Event Manager</title>
     <p>To start an event manager for handling errors, as described in
-      the example above, call the following function:</p>
+      the previous example, call the following function:</p>
     <code type="none">
 gen_event:start_link({local, error_man})</code>
     <p>This function spawns and links to a new process, an event
       manager.</p>
-    <p>The argument, <c>{local, error_man}</c> specifies the name. In
-      this case, the event manager will be locally registered as
-      <c>error_man</c>.</p>
+    <p>The argument, <c>{local, error_man}</c> specifies the name. The
+    event manager is then locally registered as <c>error_man</c>.</p>
     <p>If the name is omitted, the event manager is not registered.
-      Instead its pid must be used. The name could also be given
+      Instead its pid must be used. The name can also be given
       as <c>{global, Name}</c>, in which case the event manager is
       registered using <c>global:register_name/2</c>.</p>
     <p><c>gen_event:start_link</c> must be used if the event manager is
-      part of a supervision tree, i.e. is started by a supervisor.
-      There is another function <c>gen_event:start</c> to start a
-      stand-alone event manager, i.e. an event manager which is not
+      part of a supervision tree, that is, started by a supervisor.
+      There is another function, <c>gen_event:start</c>, to start a
+      standalone event manager, that is, an event manager that is not
       part of a supervision tree.</p>
   </section>
 
   <section>
     <title>Adding an Event Handler</title>
-    <p>Here is an example using the shell on how to start an event
-      manager and add an event handler to it:</p>
+    <p>The following example shows how to start an event manager and
+    add an event handler to it by using the shell:</p>
     <pre>
 1> <input>gen_event:start({local, error_man}).</input>
 {ok,&lt;0.31.0>}
@@ -128,16 +128,16 @@ gen_event:start_link({local, error_man})</code>
 ok</pre>
     <p>This function sends a message to the event manager registered as
       <c>error_man</c>, telling it to add the event handler
-      <c>terminal_logger</c>. The event manager will call the callback
-      function <c>terminal_logger:init([])</c>, where the argument []
-      is the third argument to <c>add_handler</c>. <c>init</c> is
-      expected to return <c>{ok, State}</c>, where <c>State</c> is
+      <c>terminal_logger</c>. The event manager calls the callback
+      function <c>terminal_logger:init([])</c>, where the argument
+      <c>[]</c> is the third argument to <c>add_handler</c>. <c>init</c>
+      is expected to return <c>{ok, State}</c>, where <c>State</c> is
       the internal state of the event handler.</p>
     <code type="none">
 init(_Args) ->
     {ok, []}.</code>
     <p>Here, <c>init</c> does not need any input data and ignores its
-      argument. Also, for <c>terminal_logger</c> the internal state is
+      argument. For <c>terminal_logger</c>, the internal state is
       not used. For <c>file_logger</c>, the internal state is used
       to save the open file descriptor.</p>
     <code type="none">
@@ -147,7 +147,7 @@ init(File) ->
   </section>
 
   <section>
-    <title>Notifying About Events</title>
+    <title>Notifying about Events</title>
     <pre>
 3> <input>gen_event:notify(error_man, no_reply).</input>
 ***Error*** no_reply
@@ -158,7 +158,7 @@ ok</pre>
       When the event is received, the event manager calls
       <c>handle_event(Event, State)</c> for each installed event
       handler, in the same order as they were added. The function is
-      expected to return a tuple <c>{ok, State1}</c>, where
+      expected to return a tuple <c>{ok,State1}</c>, where
       <c>State1</c> is a new value for the state of the event handler.</p>
     <p>In <c>terminal_logger</c>:</p>
     <code type="none">
@@ -179,17 +179,17 @@ handle_event(ErrorMsg, Fd) ->
 ok</pre>
     <p>This function sends a message to the event manager registered as
       <c>error_man</c>, telling it to delete the event handler
-      <c>terminal_logger</c>. The event manager will call the callback
+      <c>terminal_logger</c>. The event manager calls the callback
       function <c>terminal_logger:terminate([], State)</c>, where
-      the argument [] is the third argument to <c>delete_handler</c>.
-      <c>terminate</c> should be the opposite of <c>init</c> and do any
+      the argument <c>[]</c> is the third argument to <c>delete_handler</c>.
+      <c>terminate</c> is to be the opposite of <c>init</c> and do any
       necessary cleaning up. Its return value is ignored.</p>
     <p>For <c>terminal_logger</c>, no cleaning up is necessary:</p>
     <code type="none">
 terminate(_Args, _State) ->
     ok.</code>
     <p>For <c>file_logger</c>, the file descriptor opened in <c>init</c>
-      needs to be closed:</p>
+    must be closed:</p>
     <code type="none">
 terminate(_Args, Fd) ->
     file:close(Fd).</code>
@@ -197,20 +197,22 @@ terminate(_Args, Fd) ->
 
   <section>
     <title>Stopping</title>
-    <p>When an event manager is stopped, it will give each of
+    <p>When an event manager is stopped, it gives each of
       the installed event handlers the chance to clean up by calling
       <c>terminate/2</c>, the same way as when deleting a handler.</p>
 
     <section>
       <title>In a Supervision Tree</title>
       <p>If the event manager is part of a supervision tree, no stop
-        function is needed. The event manager will automatically be
+        function is needed. The event manager is automatically
         terminated by its supervisor. Exactly how this is done is
-        defined by a <seealso marker="sup_princ#shutdown">shutdown strategy</seealso> set in the supervisor.</p>
+        defined by a
+        <seealso marker="sup_princ#shutdown">shutdown strategy</seealso>
+        set in the supervisor.</p>
     </section>
 
     <section>
-      <title>Stand-Alone Event Managers</title>
+      <title>Standalone Event Managers</title>
       <p>An event manager can also be stopped by calling:</p>
       <pre>
 > <input>gen_event:stop(error_man).</input>
@@ -219,16 +221,17 @@ ok</pre>
   </section>
   <section>
     <title>Handling Other Messages</title>
-    <p>If the gen_event should be able to receive other messages than
-      events, the callback function <c>handle_info(Info, StateName, StateData)</c>
-      must be implemented to handle them. Examples of
-      other messages are exit messages, if the gen_event is linked to
+    <p>If the <c>gen_event</c> is to be able to receive other messages
+      than events, the callback function
+      <c>handle_info(Info, StateName, StateData)</c>
+      must be implemented to handle them. Examples of other
+      messages are exit messages, if the <c>gen_event</c> is linked to
       other processes (than the supervisor) and trapping exit signals.</p>
     <code type="none">
 handle_info({'EXIT', Pid, Reason}, State) ->
     ..code to handle exits here..
     {ok, NewState}.</code>
-    <p>The code_change method also has to be implemented.</p>
+    <p>The <c>code_change</c> method must also be implemented.</p>
     <code type="none">
 code_change(OldVsn, State, Extra) ->
     ..code to convert state (and more) during code change
diff --git a/system/doc/design_principles/fsm.xml b/system/doc/design_principles/fsm.xml
index 9dce159dca..ef961f5fad 100644
--- a/system/doc/design_principles/fsm.xml
+++ b/system/doc/design_principles/fsm.xml
@@ -21,32 +21,33 @@
     
     </legalnotice>
 
-    <title>Gen_Fsm Behaviour</title>
+    <title>gen_fsm Behaviour</title>
     <prepared></prepared>
     <docno></docno>
     <date></date>
     <rev></rev>
     <file>fsm.xml</file>
   </header>
-  <p>This chapter should be read in conjunction with <c>gen_fsm(3)</c>,
-    where all interface functions and callback functions are described
-    in detail.</p>
+  <marker id="gen_fsm behaviour"></marker>
+  <p>This section is to be read with the <c>gen_fsm(3)</c> manual page
+    in STDLIB, where all interface functions and callback
+    functions are described in detail.</p>
 
   <section>
-    <title>Finite State Machines</title>
-    <p>A finite state machine, FSM, can be described as a set of
+    <title>Finite-State Machines</title>
+    <p>A Finite-State Machine (FSM) can be described as a set of
       relations of the form:</p>
     <pre>
 State(S) x Event(E) -> Actions(A), State(S')</pre>
     <p>These relations are interpreted as meaning:</p>
     <quote>
-      <p>If we are in state <c>S</c> and the event <c>E</c> occurs, we
-        should perform the actions <c>A</c> and make a transition to
-        the state <c>S'</c>.</p>
+      <p>If we are in state <c>S</c> and event <c>E</c> occurs, we
+        are to perform actions <c>A</c> and make a transition to
+        state <c>S'</c>.</p>
     </quote>
     <p>For an FSM implemented using the <c>gen_fsm</c> behaviour,
       the state transition rules are written as a number of Erlang
-      functions which conform to the following convention:</p>
+      functions, which conform to the following convention:</p>
     <pre>
 StateName(Event, StateData) ->
     .. code for actions here ...
@@ -55,16 +56,16 @@ StateName(Event, StateData) ->
 
   <section>
     <title>Example</title>
-    <p>A door with a code lock could be viewed as an FSM. Initially,
+    <p>A door with a code lock can be viewed as an FSM. Initially,
       the door is locked. Anytime someone presses a button, this
       generates an event. Depending on what buttons have been pressed
-      before, the sequence so far may be correct, incomplete or wrong.</p>
-    <p>If it is correct, the door is unlocked for 30 seconds (30000 ms).
+      before, the sequence so far can be correct, incomplete, or wrong.</p>
+    <p>If it is correct, the door is unlocked for 30 seconds (30,000 ms).
       If it is incomplete, we wait for another button to be pressed. If
       it is is wrong, we start all over, waiting for a new button
       sequence.</p>
     <p>Implementing the code lock FSM using <c>gen_fsm</c> results in
-      this callback module:</p>
+      the following callback module:</p>
     <marker id="ex"></marker>
     <code type="none"><![CDATA[
 -module(code_lock).
@@ -101,85 +102,88 @@ open(timeout, State) ->
   </section>
 
   <section>
-    <title>Starting a Gen_Fsm</title>
-    <p>In the example in the previous section, the gen_fsm is started by
-      calling <c>code_lock:start_link(Code)</c>:</p>
+    <title>Starting gen_fsm</title>
+    <p>In the example in the previous section, the <c>gen_fsm</c> is
+      started by calling <c>code_lock:start_link(Code)</c>:</p>
     <code type="none">
 start_link(Code) ->
     gen_fsm:start_link({local, code_lock}, code_lock, lists:reverse(Code), []).
     </code>
-    <p><c>start_link</c> calls the function <c>gen_fsm:start_link/4</c>.
-      This function spawns and links to a new process, a gen_fsm.</p>
+    <p><c>start_link</c> calls the function <c>gen_fsm:start_link/4</c>,
+    which spawns and links to a new process, a <c>gen_fsm</c>.</p>
     <list type="bulleted">
       <item>
-        <p>The first argument <c>{local, code_lock}</c> specifies
-          the name. In this case, the gen_fsm will be locally registered
-          as <c>code_lock</c>.</p>
-        <p>If the name is omitted, the gen_fsm is not registered.
-          Instead its pid must be used. The name could also be given as
-          <c>{global, Name}</c>, in which case the gen_fsm is registered
-          using <c>global:register_name/2</c>.</p>
+        <p>The first argument, <c>{local, code_lock}</c>, specifies
+          the name. In this case, the <c>gen_fsm</c> is locally
+	  registered as <c>code_lock</c>.</p>
+        <p>If the name is omitted, the <c>gen_fsm</c> is not registered.
+          Instead its pid must be used. The name can also be given
+	  as <c>{global, Name}</c>, in which case the <c>gen_fsm</c> is
+	  registered using <c>global:register_name/2</c>.</p>
       </item>
       <item>
         <p>The second argument, <c>code_lock</c>, is the name of
-          the callback module, that is the module where the callback
+          the callback module, that is, the module where the callback
           functions are located.</p>
-        <p>In this case, the interface functions (<c>start_link</c> and
-          <c>button</c>) are located in the same module as the callback
-          functions (<c>init</c>, <c>locked</c> and <c>open</c>). This
+        <p>The interface functions (<c>start_link</c> and <c>button</c>)
+	  are then located in the same module as the callback
+          functions (<c>init</c>, <c>locked</c>, and <c>open</c>). This
           is normally good programming practice, to have the code
           corresponding to one process contained in one module.</p>
       </item>
       <item>
-        <p>The third argument, <c>Code</c>, is a list of digits which is passed
-          reversed to the callback function <c>init</c>. Here, <c>init</c>
+        <p>The third argument, <c>Code</c>, is a list of digits that
+	  which is passed reversed to the callback function <c>init</c>.
+	  Here, <c>init</c>
           gets the correct code for the lock as indata.</p>
       </item>
       <item>
-        <p>The fourth argument, [], is a list of options. See
-          <c>gen_fsm(3)</c> for available options.</p>
+        <p>The fourth argument, <c>[]</c>, is a list of options. See
+          the <c>gen_fsm(3)</c> manual page for available options.</p>
       </item>
     </list>
-    <p>If name registration succeeds, the new gen_fsm process calls
+    <p>If name registration succeeds, the new <c>gen_fsm</c> process calls
       the callback function <c>code_lock:init(Code)</c>. This function
       is expected to return <c>{ok, StateName, StateData}</c>, where
-      <c>StateName</c> is the name of the initial state of the gen_fsm.
-      In this case <c>locked</c>, assuming the door is locked to begin
-      with. <c>StateData</c> is the internal state of the gen_fsm. (For
-      gen_fsms, the internal state is often referred to 'state data' to
+      <c>StateName</c> is the name of the initial state of the
+      <c>gen_fsm</c>. In this case <c>locked</c>, assuming the door is
+      locked to begin with. <c>StateData</c> is the internal state of
+      the <c>gen_fsm</c>. (For <c>gen_fsm</c>, the internal state is
+      often referred to 'state data' to
       distinguish it from the state as in states of a state machine.)
       In this case, the state data is the button sequence so far (empty
       to begin with) and the correct code of the lock.</p>
     <code type="none">
 init(Code) ->
     {ok, locked, {[], Code}}.</code>
-    <p>Note that <c>gen_fsm:start_link</c> is synchronous. It does not
-      return until the gen_fsm has been initialized and is ready to
+    <p><c>gen_fsm:start_link</c> is synchronous. It does not return until
+    the <c>gen_fsm</c> has been initialized and is ready to
       receive notifications.</p>
-    <p><c>gen_fsm:start_link</c> must be used if the gen_fsm is part of
-      a supervision tree, i.e. is started by a supervisor. There is
-      another function <c>gen_fsm:start</c> to start a stand-alone
-      gen_fsm, i.e. a gen_fsm which is not part of a supervision tree.</p>
+    <p><c>gen_fsm:start_link</c> must be used if the <c>gen_fsm</c> is
+      part of a supervision tree, that is, started by a supervisor. There
+      is another function, <c>gen_fsm:start</c>, to start a standalone
+      <c>gen_fsm</c>, that is, a <c>gen_fsm</c> that is not part of a
+      supervision tree.</p>
   </section>
 
   <section>
-    <title>Notifying About Events</title>
+    <title>Notifying about Events</title>
     <p>The function notifying the code lock about a button event is
       implemented using <c>gen_fsm:send_event/2</c>:</p>
     <code type="none">
 button(Digit) ->
     gen_fsm:send_event(code_lock, {button, Digit}).</code>
-    <p><c>code_lock</c> is the name of the gen_fsm and must agree with
-      the name used to start it. <c>{button, Digit}</c> is the actual
-      event.</p>
-    <p>The event is made into a message and sent to the gen_fsm. When
-      the event is received, the gen_fsm calls
-      <c>StateName(Event, StateData)</c> which is expected to return a
-      tuple <c>{next_state, StateName1, StateData1}</c>.
+    <p><c>code_lock</c> is the name of the <c>gen_fsm</c> and must
+      agree with the name used to start it.
+      <c>{button, Digit}</c> is the actual event.</p>
+    <p>The event is made into a message and sent to the <c>gen_fsm</c>.
+      When the event is received, the <c>gen_fsm</c> calls
+      <c>StateName(Event, StateData)</c>, which is expected to return a
+      tuple <c>{next_state,StateName1,StateData1}</c>.
       <c>StateName</c> is the name of the current state and
       <c>StateName1</c> is the name of the next state to go to.
       <c>StateData1</c> is a new value for the state data of
-      the gen_fsm.</p>
+      the <c>gen_fsm</c>.</p>
     <code type="none"><![CDATA[
 locked({button, Digit}, {SoFar, Code}) ->
     case [Digit|SoFar] of
@@ -198,20 +202,21 @@ open(timeout, State) ->
     <p>If the door is locked and a button is pressed, the complete
       button sequence so far is compared with the correct code for
       the lock and, depending on the result, the door is either unlocked
-      and the gen_fsm goes to state <c>open</c>, or the door remains in
-      state <c>locked</c>.</p>
+      and the <c>gen_fsm</c> goes to state <c>open</c>, or the door
+      remains in state <c>locked</c>.</p>
   </section>
 
   <section>
-    <title>Timeouts</title>
+    <title>Time-Outs</title>
     <p>When a correct code has been given, the door is unlocked and
       the following tuple is returned from <c>locked/2</c>:</p>
     <code type="none">
 {next_state, open, {[], Code}, 30000};</code>
-    <p>30000 is a timeout value in milliseconds. After 30000 ms, i.e.
-      30 seconds, a timeout occurs. Then <c>StateName(timeout, StateData)</c> is called. In this case, the timeout occurs when
-      the door has been in state <c>open</c> for 30 seconds. After that
-      the door is locked again:</p>
+    <p>30,000 is a time-out value in milliseconds. After this time,
+      that is, 30 seconds, a time-out occurs. Then,
+      <c>StateName(timeout, StateData)</c> is called. The time-out
+      then occurs when the door has been in state <c>open</c> for 30
+      seconds. After that the door is locked again:</p>
     <code type="none">
 open(timeout, State) ->
     do_lock(),
@@ -220,7 +225,7 @@ open(timeout, State) ->
 
   <section>
     <title>All State Events</title>
-    <p>Sometimes an event can arrive at any state of the gen_fsm.
+    <p>Sometimes an event can arrive at any state of the <c>gen_fsm</c>.
       Instead of sending the message with <c>gen_fsm:send_event/2</c>
       and writing one clause handling the event for each state function,
       the message can be sent with <c>gen_fsm:send_all_state_event/2</c>
@@ -245,15 +250,16 @@ handle_event(stop, _StateName, StateData) ->
 
     <section>
       <title>In a Supervision Tree</title>
-      <p>If the gen_fsm is part of a supervision tree, no stop function
-        is needed. The gen_fsm will automatically be terminated by its
-        supervisor. Exactly how this is done is defined by a
-        <seealso marker="sup_princ#shutdown">shutdown strategy</seealso>
+      <p>If the <c>gen_fsm</c> is part of a supervision tree, no stop
+        function is needed. The <c>gen_fsm</c> is automatically
+	terminated by its supervisor. Exactly how this is done is
+	defined by a
+	<seealso marker="sup_princ#shutdown">shutdown strategy</seealso>
         set in the supervisor.</p>
       <p>If it is necessary to clean up before termination, the shutdown
-        strategy must be a timeout value and the gen_fsm must be set to
-        trap exit signals in the <c>init</c> function. When ordered
-        to shutdown, the gen_fsm will then call the callback function
+        strategy must be a time-out value and the <c>gen_fsm</c> must be
+	set to trap exit signals in the <c>init</c> function. When ordered
+        to shutdown, the <c>gen_fsm</c> then calls the callback function
         <c>terminate(shutdown, StateName, StateData)</c>:</p>
       <code type="none">
 init(Args) ->
@@ -270,9 +276,9 @@ terminate(shutdown, StateName, StateData) ->
     </section>
 
     <section>
-      <title>Stand-Alone Gen_Fsms</title>
-      <p>If the gen_fsm is not part of a supervision tree, a stop
-        function may be useful, for example:</p>
+      <title>Standalone gen_fsm</title>
+      <p>If the <c>gen_fsm</c> is not part of a supervision tree, a stop
+        function can be useful, for example:</p>
       <code type="none">
 ...
 -export([stop/0]).
@@ -290,26 +296,28 @@ handle_event(stop, _StateName, StateData) ->
 terminate(normal, _StateName, _StateData) ->
     ok.</code>
       <p>The callback function handling the <c>stop</c> event returns a
-        tuple <c>{stop,normal,StateData1}</c>, where <c>normal</c>
+        tuple, <c>{stop,normal,StateData1}</c>, where <c>normal</c>
         specifies that it is a normal termination and <c>StateData1</c>
-        is a new value for the state data of the gen_fsm. This will
-        cause the gen_fsm to call
+        is a new value for the state data of the <c>gen_fsm</c>. This
+        causes the <c>gen_fsm</c> to call
         <c>terminate(normal,StateName,StateData1)</c> and then
-        terminate gracefully:</p>
+        it terminates gracefully:</p>
     </section>
   </section>
 
   <section>
     <title>Handling Other Messages</title>
-    <p>If the gen_fsm should be able to receive other messages than
-      events, the callback function <c>handle_info(Info, StateName, StateData)</c> must be implemented to handle them. Examples of
-      other messages are exit messages, if the gen_fsm is linked to
+    <p>If the <c>gen_fsm</c> is to be able to receive other messages
+      than events, the callback function
+      <c>handle_info(Info, StateName, StateData)</c> must be implemented
+      to handle them. Examples of
+      other messages are exit messages, if the <c>gen_fsm</c> is linked to
       other processes (than the supervisor) and trapping exit signals.</p>
     <code type="none">
 handle_info({'EXIT', Pid, Reason}, StateName, StateData) ->
     ..code to handle exits here..
     {next_state, StateName1, StateData1}.</code>
-    <p>The code_change method also has to be implemented.</p>
+    <p>The code_change method must also be implemented.</p>
     <code type="none">
 code_change(OldVsn, StateName, StateData, Extra) ->
     ..code to convert state (and more) during code change
diff --git a/system/doc/design_principles/gen_server_concepts.xml b/system/doc/design_principles/gen_server_concepts.xml
index d24d87aa03..d721845c6d 100644
--- a/system/doc/design_principles/gen_server_concepts.xml
+++ b/system/doc/design_principles/gen_server_concepts.xml
@@ -21,7 +21,7 @@
     
     </legalnotice>
 
-    <title>Gen_Server Behaviour</title>
+    <title>gen_server Behaviour</title>
     <prepared></prepared>
     <docno></docno>
     <date></date>
@@ -29,16 +29,16 @@
     <file>gen_server_concepts.xml</file>
   </header>
   <marker id="gen_server"></marker>
-  <p>This chapter should be read in conjunction with
-    <seealso marker="stdlib:gen_server">gen_server(3)</seealso>,
-    where all interface functions and callback
-    functions are described in detail.</p>
+  <p>This section is to be read with the
+    <seealso marker="stdlib:gen_server">gen_server(3)</seealso>
+    manual page in <c>stdblib</c>, where all interface functions and
+    callback functions are described in detail.</p>
 
   <section>
     <title>Client-Server Principles</title>
     <p>The client-server model is characterized by a central server
       and an arbitrary number of clients. The client-server model is
-      generally used for resource management operations, where several
+      used for resource management operations, where several
       different clients want to share a common resource. The server is
       responsible for managing this resource.</p>
     <marker id="clientserver"></marker>
@@ -49,9 +49,10 @@
 
   <section>
     <title>Example</title>
-    <p>An example of a simple server written in plain Erlang was
-      given in <seealso marker="des_princ#ch1">Overview</seealso>.
-      The server can be re-implemented using <c>gen_server</c>,
+    <p>An example of a simple server written in plain Erlang is
+      provided in
+      <seealso marker="des_princ#ch1">Overview</seealso>.
+      The server can be reimplemented using <c>gen_server</c>,
       resulting in this callback module:</p>
     <marker id="ex"></marker>
     <code type="none">
@@ -86,61 +87,60 @@ handle_cast({free, Ch}, Chs) ->
 
   <section>
     <title>Starting a Gen_Server</title>
-    <p>In the example in the previous section, the gen_server is started
-      by calling <c>ch3:start_link()</c>:</p>
+    <p>In the example in the previous section, <c>gen_server</c> is
+    started by calling <c>ch3:start_link()</c>:</p>
     <code type="none">
 start_link() ->
     gen_server:start_link({local, ch3}, ch3, [], []) => {ok, Pid}</code>
-    <p><c>start_link</c> calls the function
-      <c>gen_server:start_link/4</c>. This function spawns and links to
-      a new process, a gen_server.</p>
+    <p><c>start_link</c> calls function <c>gen_server:start_link/4</c>.
+    This function spawns and links to a new process, a
+    <c>gen_server</c>.</p>
     <list type="bulleted">
       <item>
-        <p>The first argument <c>{local, ch3}</c> specifies the name. In
-          this case, the gen_server will be locally registered as
-          <c>ch3</c>.</p>
-        <p>If the name is omitted, the gen_server is not registered.
-          Instead its pid must be used. The name could also be given
-          as <c>{global, Name}</c>, in which case the gen_server is
+        <p>The first argument, <c>{local, ch3}</c>, specifies the name.
+          The gen_server is then locally registered as <c>ch3</c>.</p>
+        <p>If the name is omitted, the <c>gen_server</c> is not registered.
+          Instead its pid must be used. The name can also be given
+          as <c>{global, Name}</c>, in which case the <c>gen_server</c> is
           registered using <c>global:register_name/2</c>.</p>
       </item>
       <item>
         <p>The second argument, <c>ch3</c>, is the name of the callback
-          module, that is the module where the callback functions are
+          module, that is, the module where the callback functions are
           located.</p>
-        <p>In this case, the interface functions (<c>start_link</c>,
-          <c>alloc</c> and <c>free</c>) are located in the same module
-          as the callback functions (<c>init</c>, <c>handle_call</c> and
+        <p>The interface functions (<c>start_link</c>, <c>alloc</c>,
+	  and <c>free</c>) are then located in the same module
+          as the callback functions (<c>init</c>, <c>handle_call</c>, and
           <c>handle_cast</c>). This is normally good programming
           practice, to have the code corresponding to one process
           contained in one module.</p>
       </item>
       <item>
-        <p>The third argument, [], is a term which is passed as-is to
-          the callback function <c>init</c>. Here, <c>init</c> does not
+        <p>The third argument, <c>[]</c>, is a term that is passed as is
+	  to the callback function <c>init</c>. Here, <c>init</c> does not
           need any indata and ignores the argument.</p>
       </item>
       <item>
-        <p>The fourth argument, [], is a list of options. See
-          <c>gen_server(3)</c> for available options.</p>
+        <p>The fourth argument, <c>[]</c>, is a list of options. See the
+          <c>gen_server(3)</c> manual page for available options.</p>
       </item>
     </list>
-    <p>If name registration succeeds, the new gen_server process calls
-      the callback function <c>ch3:init([])</c>. <c>init</c> is expected
-      to return <c>{ok, State}</c>, where <c>State</c> is the internal
-      state of the gen_server. In this case, the state is the available
-      channels.</p>
+    <p>If name registration succeeds, the new <c>gen_server</c> process
+      calls the callback function <c>ch3:init([])</c>. <c>init</c> is
+      expected to return <c>{ok, State}</c>, where <c>State</c> is the
+      internal state of the <c>gen_server</c>. In this case, the state
+      is the available channels.</p>
     <code type="none">
 init(_Args) ->
     {ok, channels()}.</code>
-    <p>Note that <c>gen_server:start_link</c> is synchronous. It does
-      not return until the gen_server has been initialized and is ready
+    <p><c>gen_server:start_link</c> is synchronous. It does not return
+      until the <c>gen_server</c> has been initialized and is ready
       to receive requests.</p>
-    <p><c>gen_server:start_link</c> must be used if the gen_server is
-      part of a supervision tree, i.e. is started by a supervisor.
-      There is another function <c>gen_server:start</c> to start a
-      stand-alone gen_server, i.e. a gen_server which is not part of a
-      supervision tree.</p>
+    <p><c>gen_server:start_link</c> must be used if the <c>gen_server</c>
+      is part of a supervision tree, that is, started by a supervisor.
+      There is another function, <c>gen_server:start</c>, to start a
+      standalone <c>gen_server</c>, that is, a <c>gen_server</c> that
+      is not part of a supervision tree.</p>
   </section>
 
   <section>
@@ -150,14 +150,17 @@ init(_Args) ->
     <code type="none">
 alloc() ->
     gen_server:call(ch3, alloc).</code>
-    <p><c>ch3</c> is the name of the gen_server and must agree with
-      the name used to start it. <c>alloc</c> is the actual request.</p>
-    <p>The request is made into a message and sent to the gen_server.
-      When the request is received, the gen_server calls
-      <c>handle_call(Request, From, State)</c> which is expected to
-      return a tuple <c>{reply, Reply, State1}</c>. <c>Reply</c> is
-      the reply which should be sent back to the client, and
-      <c>State1</c> is a new value for the state of the gen_server.</p>
+    <p><c>ch3</c> is the name of the <c>gen_server</c> and must agree
+      with the name used to start it. <c>alloc</c> is the actual
+      request.</p>
+    <p>The request is made into a message and sent to the
+      <c>gen_server</c>. When the request is received, the
+      <c>gen_server</c> calls
+      <c>handle_call(Request, From, State)</c>, which is expected to
+      return a tuple <c>{reply,Reply,State1}</c>. <c>Reply</c> is
+      the reply that is to be sent back to the client, and
+      <c>State1</c> is a new value for the state of the
+      <c>gen_server</c>.</p>
     <code type="none">
 handle_call(alloc, _From, Chs) ->
     {Ch, Chs2} = alloc(Chs),
@@ -166,8 +169,8 @@ handle_call(alloc, _From, Chs) ->
       the new state is the set of remaining available channels
       <c>Chs2</c>.</p>
     <p>Thus, the call <c>ch3:alloc()</c> returns the allocated channel
-      <c>Ch</c> and the gen_server then waits for new requests, now
-      with an updated list of available channels.</p>
+      <c>Ch</c> and the <c>gen_server</c> then waits for new requests,
+      now with an updated list of available channels.</p>
   </section>
 
   <section>
@@ -177,20 +180,21 @@ handle_call(alloc, _From, Chs) ->
     <code type="none">
 free(Ch) ->
     gen_server:cast(ch3, {free, Ch}).</code>
-    <p><c>ch3</c> is the name of the gen_server. <c>{free, Ch}</c> is
-      the actual request.</p>
-    <p>The request is made into a message and sent to the gen_server.
+    <p><c>ch3</c> is the name of the <c>gen_server</c>.
+      <c>{free, Ch}</c> is the actual request.</p>
+    <p>The request is made into a message and sent to the
+      <c>gen_server</c>.
       <c>cast</c>, and thus <c>free</c>, then returns <c>ok</c>.</p>
-    <p>When the request is received, the gen_server calls
-      <c>handle_cast(Request, State)</c> which is expected to
-      return a tuple <c>{noreply, State1}</c>. <c>State1</c> is a new
-      value for the state of the gen_server.</p>
+    <p>When the request is received, the <c>gen_server</c> calls
+      <c>handle_cast(Request, State)</c>, which is expected to
+      return a tuple <c>{noreply,State1}</c>. <c>State1</c> is a new
+      value for the state of the <c>gen_server</c>.</p>
     <code type="none">
 handle_cast({free, Ch}, Chs) ->
     Chs2 = free(Ch, Chs),
     {noreply, Chs2}.</code>
     <p>In this case, the new state is the updated list of available
-      channels <c>Chs2</c>. The gen_server is now ready for new
+      channels <c>Chs2</c>. The <c>gen_server</c> is now ready for new
       requests.</p>
   </section>
 
@@ -199,15 +203,17 @@ handle_cast({free, Ch}, Chs) ->
 
     <section>
       <title>In a Supervision Tree</title>
-      <p>If the gen_server is part of a supervision tree, no stop
-        function is needed. The gen_server will automatically be
+      <p>If the <c>gen_server</c> is part of a supervision tree, no stop
+        function is needed. The <c>gen_server</c> is automatically
         terminated by its supervisor. Exactly how this is done is
-        defined by a <seealso marker="sup_princ#shutdown">shutdown strategy</seealso> set in the supervisor.</p>
+        defined by a
+        <seealso marker="sup_princ#shutdown">shutdown strategy</seealso>
+        set in the supervisor.</p>
       <p>If it is necessary to clean up before termination, the shutdown
-        strategy must be a timeout value and the gen_server must be set
-        to trap exit signals in the <c>init</c> function. When ordered
-        to shutdown, the gen_server will then call the callback function
-        <c>terminate(shutdown, State)</c>:</p>
+        strategy must be a time-out value and the <c>gen_server</c> must
+	be set to trap exit signals in function <c>init</c>. When ordered
+        to shutdown, the <c>gen_server</c> then calls the callback
+	function <c>terminate(shutdown, State)</c>:</p>
       <code type="none">
 init(Args) ->
     ...,
@@ -223,9 +229,9 @@ terminate(shutdown, State) ->
     </section>
 
     <section>
-      <title>Stand-Alone Gen_Servers</title>
-      <p>If the gen_server is not part of a supervision tree, a stop
-        function may be useful, for example:</p>
+      <title>Standalone Gen_Servers</title>
+      <p>If the <c>gen_server</c> is not part of a supervision tree, a
+        stop function can be useful, for example:</p>
       <code type="none">
 ...
 export([stop/0]).
@@ -245,26 +251,26 @@ handle_cast({free, Ch}, State) ->
 terminate(normal, State) ->
     ok.</code>
       <p>The callback function handling the <c>stop</c> request returns
-        a tuple <c>{stop, normal, State1}</c>, where <c>normal</c>
+        a tuple <c>{stop,normal,State1}</c>, where <c>normal</c>
         specifies that it is a normal termination and <c>State1</c> is
-        a new value for the state of the gen_server. This will cause
-        the gen_server to call <c>terminate(normal,State1)</c> and then
-        terminate gracefully.</p>
+        a new value for the state of the <c>gen_server</c>. This causes
+        the <c>gen_server</c> to call <c>terminate(normal, State1)</c>
+	and then it terminates gracefully.</p>
     </section>
   </section>
 
   <section>
     <title>Handling Other Messages</title>
-    <p>If the gen_server should be able to receive other messages than
-      requests, the callback function <c>handle_info(Info, State)</c>
+    <p>If the <c>gen_server</c> is to be able to receive other messages
+      than requests, the callback function <c>handle_info(Info, State)</c>
       must be implemented to handle them. Examples of other messages
-      are exit messages, if the gen_server is linked to other processes
-      (than the supervisor) and trapping exit signals.</p>
+      are exit messages, if the <c>gen_server</c> is linked to other
+      processes (than the supervisor) and trapping exit signals.</p>
     <code type="none">
 handle_info({'EXIT', Pid, Reason}, State) ->
     ..code to handle exits here..
     {noreply, State1}.</code>
-    <p>The code_change method also has to be implemented.</p>
+    <p>The <c>code_change</c> method must also be implemented.</p>
     <code type="none">
 code_change(OldVsn, State, Extra) ->
     ..code to convert state (and more) during code change
diff --git a/system/doc/design_principles/included_applications.xml b/system/doc/design_principles/included_applications.xml
index 3aa43fd595..7f139edf76 100644
--- a/system/doc/design_principles/included_applications.xml
+++ b/system/doc/design_principles/included_applications.xml
@@ -28,35 +28,36 @@
     <rev></rev>
     <file>included_applications.xml</file>
   </header>
+  <marker id="included appl"></marker>
 
   <section>
-    <title>Definition</title>
+    <title>Introduction</title>
     <p>An application can <em>include</em> other applications.
       An <em>included application</em> has its own application directory
       and <c>.app</c> file, but it is started as part of the supervisor
       tree of another application.</p>
     <p>An application can only be included by one other application.</p>
     <p>An included application can include other applications.</p>
-    <p>An application which is not included by any other application is 
+    <p>An application that is not included by any other application is
       called a <em>primary application</em>.</p>
     <marker id="inclappls"></marker>
     <image file="../design_principles/inclappls.gif">
-      <icaption>Primary Application and Included Applications.</icaption>
+      <icaption>Primary Application and Included Applications</icaption>
     </image>
-    <p>The application controller will automatically load any included
-      applications when loading a primary application, but not start
+    <p>The application controller automatically loads any included
+      applications when loading a primary application, but does not start
       them. Instead, the top supervisor of the included application
       must be started by a supervisor in the including application.</p>
     <p>This means that when running, an included application is in fact
-      part of the primary application and a process in an included
-      application will consider itself belonging to the primary
+      part of the primary application, and a process in an included
+      application considers itself belonging to the primary
       application.</p>
   </section>
 
   <section>
     <title>Specifying Included Applications</title>
     <p>Which applications to include is defined by
-      the <c>included_applications</c> key in the <c>.app</c> file.</p>
+      the <c>included_applications</c> key in the <c>.app</c> file:</p>
     <pre>
 {application, prim_app,
  [{description, "Tree application"},
@@ -71,7 +72,7 @@
   </section>
 
   <section>
-    <title>Synchronizing Processes During Startup</title>
+    <title>Synchronizing Processes during Startup</title>
     <p>The supervisor tree of an included application is started as
       part of the supervisor tree of the including application.
       If there is a need for synchronization between processes in
@@ -79,12 +80,12 @@
       by using <em>start phases</em>.</p>
     <p>Start phases are defined by the <c>start_phases</c> key in
       the <c>.app</c> file as a list of tuples <c>{Phase,PhaseArgs}</c>,
-      where <c>Phase</c> is an atom and <c>PhaseArgs</c> is a term.
-      Also, the value of the <c>mod</c> key of the including application
+      where <c>Phase</c> is an atom and <c>PhaseArgs</c> is a term.</p>
+    <p>The value of the <c>mod</c> key of the including application
       must be set to <c>{application_starter,[Module,StartArgs]}</c>,
-      where <c>Module</c> as usual is the application callback module
-      and <c>StartArgs</c> a term provided as argument to the callback
-      function <c>Module:start/2</c>.</p>
+      where <c>Module</c> as usual is the application callback module.
+      <c>StartArgs</c> is a term provided as argument to the callback
+      function <c>Module:start/2</c>:</p>
     <code type="none">
 {application, prim_app,
  [{description, "Tree application"},
@@ -108,36 +109,38 @@
   {mod, {incl_app_cb,[]}}
  ]}.</code>
     <p>When starting a primary application with included applications,
-      the primary application is started the normal way:
-      The application controller creates an application master for
-      the application, and the application master calls
+    the primary application is started the normal way, that is:</p>
+    <list type="bulleted">
+      <item>The application controller creates an application master for
+      the application</item>
+      <item>The application master calls
       <c>Module:start(normal, StartArgs)</c> to start the top
-      supervisor.</p>
+      supervisor.</item>
+    </list>
     <p>Then, for the primary application and each included application
       in top-down, left-to-right order, the application master calls
       <c>Module:start_phase(Phase, Type, PhaseArgs)</c> for each phase
-      defined for for the primary application, in that order.
-      Note that if a phase is not defined for an included application,
+      defined for the primary application, in that order. If a phase
+      is not defined for an included application,
       the function is not called for this phase and application.</p>
     <p>The following requirements apply to the <c>.app</c> file for
       an included application:</p>
     <list type="bulleted">
-      <item>The <c>{mod, {Module,StartArgs}}</c> option must be
-       included. This option is used to find the callback module
-      <c>Module</c> of the application. <c>StartArgs</c> is ignored,
-       as <c>Module:start/2</c> is called only for the primary
-       application.</item>
+      <item>The <c>{mod, {Module,StartArgs}}</c> option must be included.
+      This option is used to find the callback module <c>Module</c> of the
+      application. <c>StartArgs</c> is ignored, as <c>Module:start/2</c>
+      is called only for the primary application.</item>
       <item>If the included application itself contains included
-       applications, instead the option
-      <c>{mod, {application_starter, [Module,StartArgs]}}</c> must be
-       included.</item>
+      applications, instead the
+      <c>{mod, {application_starter, [Module,StartArgs]}}</c> option
+      must be included.</item>
       <item>The <c>{start_phases, [{Phase,PhaseArgs}]}</c> option must
-       be included, and the set of specified phases must be a subset
-       of the set of phases specified for the primary application.</item>
+      be included, and the set of specified phases must be a subset
+      of the set of phases specified for the primary application.</item>
     </list>
     <p>When starting <c>prim_app</c> as defined above, the application
-      controller will call the following callback functions, before
-      <c>application:start(prim_app)</c> returns a value:</p>
+    controller calls the following callback functions before
+    <c>application:start(prim_app)</c> returns a value:</p>
     <code type="none">
 application:start(prim_app)
  => prim_app_cb:start(normal, [])
diff --git a/system/doc/design_principles/release_handling.xml b/system/doc/design_principles/release_handling.xml
index 9d1e2c8669..eeb71125b6 100644
--- a/system/doc/design_principles/release_handling.xml
+++ b/system/doc/design_principles/release_handling.xml
@@ -28,128 +28,126 @@
     <rev></rev>
     <file>release_handling.xml</file>
   </header>
+  <marker id="release handling"></marker>
 
   <section>
     <title>Release Handling Principles</title>
     <p>An important feature of the Erlang programming language is
-      the ability to change module code in run-time, <em>code replacement</em>, as described in <em>Erlang Reference Manual</em>.</p>
+      the ability to change module code in runtime,
+      <em>code replacement</em>, as described in the Erlang
+      Reference Manual.</p>
     <p>Based on this feature, the OTP application SASL provides a
       framework for upgrading and downgrading between different
-      versions of an entire release in run-time. This is what we call
+      versions of an entire release in runtime. This is called
       <em>release handling</em>.</p>
-    <p>The framework consists of off-line support (<c>systools</c>) for
-      generating scripts and building release packages, and on-line
-      support (<c>release_handler</c>) for unpacking and installing
-      release packages.</p>
-    <p>Note that the minimal system based on Erlang/OTP, enabling
-      release handling, thus consists of Kernel, STDLIB and SASL.</p>
-    <list type="ordered">
-      <item>
-        <p>A release is created as described in the previous chapter
-          <seealso marker="release_structure">Releases</seealso>.
-          The release is transferred to and installed at target
-          environment. Refer to <em>System Principles</em> for
-          information of how to install the first target system.</p>
-      </item>
-      <item>
-        <p>Modifications, for example error corrections, are made to
-          the code in the development environment.</p>
-      </item>
-      <item>
-        <p>At some point it is time to make a new version of release.
-          The relevant <c>.app</c> files are updated and a new
-          <c>.rel</c> file is written.</p>
-      </item>
-      <item>
-        <p>For each modified application, an
-          <seealso marker="#appup">application upgrade file</seealso>,
-          <c>.appup</c>, is created. In this file, it is described how
-          to upgrade and/or downgrade between the old and new version of
-          the application.</p>
-      </item>
-      <item>
-        <p>Based on the <c>.appup</c> files, a
-          <seealso marker="#relup">release upgrade file</seealso> called
-          <c>relup</c>, is created. This file describes how to upgrade
-          and/or downgrade between the old and new version of
-          the entire release.</p>
-      </item>
-      <item>
-        <p>A new release package is made and transferred to
-          the target system.</p>
-      </item>
-      <item>
-        <p>The new release package is unpacked using the release
-          handler.</p>
-      </item>
-      <item>
-        <p>The new version of the release is installed, also using
-          the release handler. This is done by evaluating
-          the instructions in <c>relup</c>. Modules may be added,
-          deleted or re-loaded, applications may be started, stopped or
-          re-started etc. In some cases, it is even necessary to restart
-          the entire emulator.</p>
-        <p>If the installation fails, the system may be rebooted.
-          The old release version is then automatically used.</p>
-      </item>
-      <item>
-        <p>If the installation succeeds, the new version is made
-          the default version, which should now be used in case of a
-          system reboot.</p>
-      </item>
-    </list>
-    <p>The next chapter, <seealso marker="appup_cookbook">Appup Cookbook</seealso>, contains examples of <c>.appup</c> files
-      for typical cases of upgrades/downgrades that are normally easy
-      to handle in run-time. However, there are a many aspects that can
-      make release handling complicated. To name a few examples:</p>
+    <p>The framework consists of:</p>
     <list type="bulleted">
-      <item>
-        <p>Complicated or circular dependencies can make it difficult
-          or even impossible to decide in which order things must be
-          done without risking run-time errors during an upgrade or
-          downgrade. Dependencies may be:</p>
-        <list type="bulleted">
-          <item>between nodes,</item>
-          <item>between processes, and</item>
-          <item>between modules.</item>
-        </list>
-      </item>
-      <item>
-        <p>During release handling, non-affected processes continue
-          normal execution. This may lead to timeouts or other problems.
-          For example, new processes created in the time window between
-          suspending processes using a certain module and loading a new
-          version of this module, may execute old code.</p>
-      </item>
+      <item>Offline support - <c>systools</c> for generating scripts
+      and building release packages</item>
+      <item>Online support - <c>release_handler</c> for unpacking and
+      installing release packages</item>
     </list>
-    <p>It is therefore recommended that code is changed in as small
+    <p>The minimal system based on Erlang/OTP, enabling release handling,
+    thus consists of the Kernel, STDLIB, and SASL
+    applications.</p>
+
+    <section>
+      <title>Release Handling Workflow</title>
+      <p><em>Step 1</em>) A release is created as described in
+        <seealso marker="release_structure">Releases</seealso>.</p>
+      <p><em>Step 2</em>) The release is transferred to and installed at
+        target environment. For information of how to install the first
+	target system, see System Principles.</p>
+      <p><em>Step 3</em>) Modifications, for example, error corrections,
+        are made to the code in the development environment.</p>
+      <p><em>Step 4</em>) At some point, it is time to make a new version
+        of release. The relevant <c>.app</c> files are updated and a new
+        <c>.rel</c> file is written.</p>
+      <p><em>Step 5</em>) For each modified application, an
+        <seealso marker="#appup">application upgrade file</seealso>,
+        <c>.appup</c>, is created. In this file, it is described how to
+	upgrade and/or downgrade between the old and new version of the
+        application.</p>
+      <p><em>Step 6</em>) Based on the <c>.appup</c> files, a
+        <seealso marker="#relup">release upgrade file</seealso> called
+        <c>relup</c>, is created. This file describes how to upgrade and/or
+        downgrade between the old and new version of the entire release.</p>
+      <p><em>Step 7</em>) A new release package is made and transferred to
+        the target system.</p>
+      <p><em>Step 8</em>) The new release package is unpacked using the
+        release handler.</p>
+      <p><em>Step 9</em>) The new version of the release is installed,
+        also using the release handler. This is done by evaluating the
+        instructions in <c>relup</c>. Modules can be added, deleted, or
+        reloaded, applications can be started, stopped, or restarted, and so
+        on. In some cases, it is even necessary to restart the entire
+        emulator.</p>
+      <list type="bulleted">
+	<item>If the installation fails, the system can be rebooted.
+	The old release version is then automatically used.</item>
+	<item>If the installation succeeds, the new version is made
+	the default version, which is to now be used if there is a
+	system reboot.</item>
+      </list>
+    </section>
+
+    <section>
+      <title>Release Handling Aspects</title>
+      <p><seealso marker="appup_cookbook">Appup Cookbook</seealso>,
+        contains examples of <c>.appup</c> files
+	for typical cases of upgrades/downgrades that are normally easy to
+	handle in runtime. However, many aspects can make release handling
+	complicated, for example:</p>
+      <list type="bulleted">
+	<item>
+          <p>Complicated or circular dependencies can make it difficult
+           or even impossible to decide in which order things must be
+           done without risking runtime errors during an upgrade or
+           downgrade. Dependencies can be:</p>
+          <list type="bulleted">
+            <item>Between nodes</item>
+            <item>Between processes</item>
+            <item>Between modules</item>
+          </list>
+	</item>
+	<item>
+          <p>During release handling, non-affected processes continue
+           normal execution. This can lead to time-outs or other problems.
+           For example, new processes created in the time window between
+           suspending processes using a certain module, and loading a new
+           version of this module, can execute old code.</p>
+	</item>
+      </list>
+      <p>It is thus recommended that code is changed in as small
       steps as possible, and always kept backwards compatible.</p>
+    </section>
   </section>
 
   <section>
     <marker id="req"></marker>
     <title>Requirements</title>
-    <p>For release handling to work properly, the runtime system needs
-      to have knowledge about which release it is currently running. It
-      must also be able to change (in run-time) which boot script and
-      system configuration file should be used if the system is
-      rebooted, for example by <c>heart</c> after a failure.
-      Therefore, Erlang must be started as an embedded system, see
-      <em>Embedded System</em> for information on how to do this.</p>
+    <p>For release handling to work properly, the runtime system must
+      have knowledge about which release it is running. It
+      must also be able to change (in runtime) which boot script and
+      system configuration file to use if the system is
+      rebooted, for example, by <c>heart</c> after a failure.
+      Thus, Erlang must be started as an embedded system; for
+      information on how to do this, see Embedded System.</p>
     <p>For system reboots to work properly, it is also required that
-      the system is started with heart beat monitoring, see
-      <c>erl(1)</c> and <c>heart(3)</c>.</p>
+      the system is started with heartbeat monitoring, see the
+      <c>erl(1)</c> manual page in ERTS and the <c>heart(3)</c>
+      manual page in Kernel</p>
     <p>Other requirements:</p>
     <list type="bulleted">
       <item>
         <p>The boot script included in a release package must be
           generated from the same <c>.rel</c> file as the release
           package itself.</p>
-        <p>Information about applications are fetched from the script
+        <p>Information about applications is fetched from the script
           when an upgrade or downgrade is performed.</p>
       </item>
       <item>
-        <p>The system must be configured using one and only one system
+        <p>The system must be configured using only one system
           configuration file, called <c>sys.config</c>.</p>
         <p>If found, this file is automatically included when a release
           package is created.</p>
@@ -165,13 +163,13 @@
 
   <section>
     <title>Distributed Systems</title>
-    <p>If the system consists of several Erlang nodes, each node may use
+    <p>If the system consists of several Erlang nodes, each node can use
       its own version of the release. The release handler is a locally
       registered process and must be called at each node where an
-      upgrade or downgrade is required. There is a release handling
-      instruction that can be used to synchronize the release handler
-      processes at a number of nodes: <c>sync_nodes</c>. See
-      <c>appup(4)</c>.</p>
+      upgrade or downgrade is required. A release handling
+      instruction, <c>sync_nodes</c>, can be used to synchronize the
+      release handler processes at a number of nodes, see the
+      <c>appup(4)</c> manual page in SASL.</p>
   </section>
 
   <section>
@@ -183,31 +181,26 @@
       instructions. To make it easier for the user, there are also a
       number of <em>high-level</em> instructions, which are translated
       to low-level instructions by <c>systools:make_relup</c>.</p>
-    <p>Here, some of the most frequently used instructions are
-      described. The complete list of instructions can be found in
-      <c>appup(4)</c>.</p>
+    <p>Some of the most frequently used instructions are described in
+    this section. The complete list of instructions is included in the
+    <c>appup(4)</c> manual page in SASL.</p>
     <p>First, some definitions:</p>
-    <taglist>
-      <tag><em>Residence module</em></tag>
-      <item>
-        <p>The module where a process has its tail-recursive loop
-          function(s). If the tail-recursive loop functions are
-          implemented in several modules, all those modules are residence
-          modules for the process.</p>
-      </item>
-      <tag><em>Functional module</em></tag>
-      <item>
-        <p>A module which is not a residence module for any process.</p>
-      </item>
-    </taglist>
-    <p>Note that for a process implemented using an OTP behaviour,
-      the behaviour module is the residence module for that process.
-      The callback module is a functional module.</p>
+    <list type="bulleted">
+      <item><em>Residence module</em> - The module where a process has
+      its tail-recursive loop function(s). If these functions are
+      implemented in several modules, all those modules are residence
+      modules for the process.</item>
+      <item><em>Functional module</em> - A module that is not a
+      residence module for any process.</item>
+    </list>
+    <p>For a process implemented using an OTP behaviour, the behaviour
+    module is the residence module for that process.
+    The callback module is a functional module.</p>
 
     <section>
       <title>load_module</title>
       <p>If a simple extension has been made to a functional module, it
-        is sufficient to simply load the new version of the module into
+        is sufficient to load the new version of the module into
         the system, and remove the old version. This is called
         <em>simple code replacement</em> and for this the following
         instruction is used:</p>
@@ -217,44 +210,50 @@
 
     <section>
       <title>update</title>
-      <p>If a more complex change has been made, for example a change
-        to the format of the internal state of a gen_server, simple code
-        replacement is not sufficient. Instead it is necessary to
-        suspend the processes using the module (to avoid that they try
-        to handle any requests before the code replacement is
-        completed), ask them to transform the internal state format and
-        switch to the new version of the module, remove the old version
-        and last, resume the processes. This is called <em>synchronized code replacement</em> and for this the following instructions
-        are used:</p>
+      <p>If a more complex change has been made, for example, a change
+        to the format of the internal state of a <c>gen_server</c>, simple
+	code replacement is not sufficient. Instead, it is necessary to:</p>
+	<list type="bulleted">
+	  <item>Suspend the processes using the module (to avoid that
+	  they try to handle any requests before the code replacement is
+	  completed).</item>
+	  <item>Ask them to transform the internal state format and
+	  switch to the new version of the module.</item>
+	  <item>Remove the old version.</item>
+	  <item>Resume the processes.</item>
+	</list>
+	<p>This is called <em>synchronized code replacement</em> and for
+	this the following instructions are used:</p>
       <code type="none">
 {update, Module, {advanced, Extra}}
 {update, Module, supervisor}</code>
       <p><c>update</c> with argument <c>{advanced,Extra}</c> is used
         when changing the internal state of a behaviour as described
-        above. It will cause behaviour processes to call the callback
+        above. It causes behaviour processes to call the callback
         function <c>code_change</c>, passing the term <c>Extra</c> and
-        some other information as arguments. See the man pages for
+        some other information as arguments. See the manual pages for
         the respective behaviours and
-        <seealso marker="appup_cookbook#int_state">Appup Cookbook</seealso>.</p>
+	<seealso marker="appup_cookbook#int_state">Appup Cookbook</seealso>.</p>
       <p><c>update</c> with argument <c>supervisor</c> is used when
         changing the start specification of a supervisor. See
-        <seealso marker="appup_cookbook#sup">Appup Cookbook</seealso>.</p>
+	<seealso marker="appup_cookbook#sup">Appup Cookbook</seealso>.</p>
       <p>When a module is to be updated, the release handler finds
         which processes that are <em>using</em> the module by
         traversing the supervision tree of each running application
         and checking all the child specifications:</p>
       <code type="none">
 {Id, StartFunc, Restart, Shutdown, Type, Modules}</code>
-      <p>A process is using a module if the name is listed in
+      <p>A process uses a module if the name is listed in
         <c>Modules</c> in the child specification for the process.</p>
       <p>If <c>Modules=dynamic</c>, which is the case for event
         managers, the event manager process informs the release handler
-        about the list of currently installed event handlers (gen_fsm)
-        and it is checked if the module name is in this list instead.</p>
+        about the list of currently installed event handlers
+	(<c>gen_fsm</c>), and it is checked if the module name is in
+        this list instead.</p>
       <p>The release handler suspends, asks for code change, and
         resumes processes by calling the functions
-        <c>sys:suspend/1,2</c>, <c>sys:change_code/4,5</c> and
-        <c>sys:resume/1,2</c> respectively.</p>
+        <c>sys:suspend/1,2</c>, <c>sys:change_code/4,5</c>, and
+        <c>sys:resume/1,2</c>, respectively.</p>
     </section>
 
     <section>
@@ -263,39 +262,39 @@
         used:</p>
       <code type="none">
 {add_module, Module}</code>
-      <p>The instruction loads the module and is absolutely necessary
+      <p>The instruction loads the module and is necessary
         when running Erlang in embedded mode. It is not strictly
         required when running Erlang in interactive (default) mode,
         since the code server then automatically searches for and
         loads unloaded modules.</p>
-      <p>The opposite of <c>add_module</c> is <c>delete_module</c> which
+      <p>The opposite of <c>add_module</c> is <c>delete_module</c>, which
         unloads a module:</p>
       <code type="none">
 {delete_module, Module}</code>
-      <p>Note that any process, in any application, with <c>Module</c>
+      <p>Any process, in any application, with <c>Module</c>
         as residence module, is killed when the instruction is
-        evaluated. The user should therefore ensure that all such
+        evaluated. The user must therefore ensure that all such
         processes are terminated before deleting the module, to avoid
-        a possible situation with failing supervisor restarts.</p>
+        a situation with failing supervisor restarts.</p>
     </section>
 
     <section>
       <title>Application Instructions</title>
-      <p>Instruction for adding an application:</p>
+      <p>The following is the instruction for adding an application:</p>
       <code type="none">
 {add_application, Application}</code>
       <p>Adding an application means that the modules defined by
         the <c>modules</c> key in the <c>.app</c> file are loaded using
-        a number of <c>add_module</c> instructions, then the application
+        a number of <c>add_module</c> instructions, and then the application
         is started.</p>
-      <p>Instruction for removing an application:</p>
+      <p>The following is the instruction for removing an application:</p>
       <code type="none">
 {remove_application, Application}</code>
       <p>Removing an application means that the application is stopped,
         the modules are unloaded using a number of <c>delete_module</c>
-        instructions and then the application specification is unloaded
+        instructions, and then the application specification is unloaded
         from the application controller.</p>
-      <p>Instruction for restarting an application:</p>
+      <p>The following is the instruction for restarting an application:</p>
       <code type="none">
 {restart_application, Application}</code>
       <p>Restarting an application means that the application is stopped
@@ -305,46 +304,48 @@
     </section>
 
     <section>
-      <title>apply (low-level)</title>
+      <title>apply (Low-Level)</title>
       <p>To call an arbitrary function from the release handler,
         the following instruction is used:</p>
       <code type="none">
 {apply, {M, F, A}}</code>
-      <p>The release handler will evaluate <c>apply(M, F, A)</c>.</p>
+      <p>The release handler evalutes <c>apply(M, F, A)</c>.</p>
     </section>
 
     <section>
       <marker id="restart_new_emulator_instr"></marker>
-      <title>restart_new_emulator (low-level)</title>
+      <title>restart_new_emulator (Low-Level)</title>
       <p>This instruction is used when changing to a new emulator
-        version, or when any of the core applications kernel, stdlib
-        or sasl is upgraded. If a system reboot is needed for some
-        other reason, the <c>restart_emulator</c> instruction should
-        be used instead.</p>
-      <p>Requires that the system is started with heart beat
-        monitoring, see <c>erl(1)</c> and <c>heart(3)</c>.</p>
-      <p>The <c>restart_new_emulator</c> instruction shall always be
-        the very first instruction in a relup. If the relup is
-        generated by <c>systools:make_relup/3,4</c> this is
+        version, or when any of the core applications Kernel,
+	STDLIB, or SASL is upgraded. If a system reboot
+	is needed for another reason, the <c>restart_emulator</c>
+	instruction is to be used instead.</p>
+      <p>This instruction requires that the system is started with
+        heartbeat monitoring, see the <c>erl(1)</c> manual page in
+	ERTS and the <c>heart(3)</c> manual page in Kernel.</p>
+      <p>The <c>restart_new_emulator</c> instruction must always be
+        the first instruction in a relup. If the relup is
+        generated by <c>systools:make_relup/3,4</c>, this is
         automatically ensured.</p>
       <p>When the release handler encounters the instruction, it first
         generates a temporary boot file, which starts the new versions
         of the emulator and the core applications, and the old version
         of all other applications. Then it shuts down
-        the current emulator by calling <c>init:reboot()</c>, see
-        <c>init(3)</c>. All processes are terminated gracefully and
-        the system is rebooted by the heart program, using the
+        the current emulator by calling <c>init:reboot()</c>, see the
+        <c>init(3)</c> manual page in Kernel.
+	All processes are terminated gracefully and
+        the system is rebooted by the <c>heart</c> program, using the
         temporary boot file. After the reboot, the rest of the relup
         instructions are executed. This is done as a part of the
         temporary boot script.</p>
       <warning>
-	<p>Since this mechanism causes the new versions of the
-	emulator and core applications to run with the old version of
-	other applications during startup, extra care must be taken to
+	<p>This mechanism causes the new versions of the emulator and
+	core applications to run with the old version of other
+	applications during startup. Thus, take extra care to
 	avoid incompatibility. Incompatible changes in the core
-	applications may in some situations be necessary. If possible,
+	applications can in some situations be necessary. If possible,
 	such changes are preceded by deprecation over two major
-	releases before the actual change. To make sure your
+	releases before the actual change. To ensure the
 	application is not crashed by an incompatible change, always
 	remove any call to deprecated functions as soon as
 	possible.</p>
@@ -352,35 +353,36 @@
       <p>An info report is written when the upgrade is completed. To
         programmatically find out if the upgrade is complete,
         call <c>release_handler:which_releases(current)</c> and check
-        if it returns the expected (i.e. the new) release.</p>
+        if it returns the expected (that is, the new) release.</p>
       <p>The new release version must be made permanent when the new
-        emulator is up and running. Otherwise, the old version will be
-        used in case of a new system reboot.</p>
-      <p>On UNIX, the release handler tells the heart program which
-        command to use to reboot the system. Note that the environment
-        variable <c>HEART_COMMAND</c>, normally used by the heart
-        program, in this case is ignored. The command instead defaults
-        to <c>$ROOT/bin/start</c>. Another command can be set
-        by using the SASL configuration parameter <c>start_prg</c>, see
-        <c>sasl(6)</c>.</p>
+        emulator is operational. Otherwise, the old version will be
+        used if there is a new system reboot.</p>
+      <p>On UNIX, the release handler tells the <c>heart</c> program
+        which command to use to reboot the system. The environment
+        variable <c>HEART_COMMAND</c>, normally used by the <c>heart</c>
+        program, is ignored in this case. The command instead defaults
+        to <c>$ROOT/bin/start</c>. Another command can be set by using
+	the SASL configuration parameter <c>start_prg</c>, see
+	the <c>sasl(6)</c> manual page.</p>
     </section>
 
     <section>
       <marker id="restart_emulator_instr"></marker>
-      <title>restart_emulator (low-level)</title>
-      <p>This instruction is not related to upgrades of erts or any of
-        the core applications. It can be used by any application to
+      <title>restart_emulator (Low-Level)</title>
+      <p>This instruction is not related to upgrades of ERTS or any
+        of the core applications. It can be used by any application to
         force a restart of the emulator after all upgrade instructions
         are executed.</p>
-      <p>There can only be one <c>restart_emulator</c> instruction in
-	a relup script, and it shall always be placed at the end. If
-	the relup is generated by <c>systools:make_relup/3,4</c> this
+      <p>A relup script can only have one <c>restart_emulator</c>
+        instruction and it must always be placed at the end. If
+	the relup is generated by <c>systools:make_relup/3,4</c>, this
 	is automatically ensured.</p>
       <p>When the release handler encounters the instruction, it shuts
-        down the emulator by calling <c>init:reboot()</c>, see
-        <c>init(3)</c>. All processes are terminated gracefully and
-        the system can then be rebooted by the heart program using the
-        new release version. No more upgrade instruction will be
+        down the emulator by calling <c>init:reboot()</c>, see the
+        <c>init(3)</c> manual page in Kernel.
+	All processes are terminated gracefully and the system
+        can then be rebooted by the <c>heart</c> program using the
+        new release version. No more upgrade instruction is
         executed after the restart.</p>
     </section>
   </section>
@@ -389,10 +391,11 @@
     <marker id="appup"></marker>
     <title>Application Upgrade File</title>
     <p>To define how to upgrade/downgrade between the current version
-      and previous versions of an application, we create an
-      <em>application upgrade file</em>, or in short <c>.appup</c> file.
-      The file should be called <c>Application.appup</c>, where
-      <c>Application</c> is the name of the application:</p>
+      and previous versions of an application, an
+      <em>application upgrade file</em>, or in short an <c>.appup</c>
+      file is created.
+      The file is to be called <c>Application.appup</c>, where
+      <c>Application</c> is the application name:</p>
     <code type="none">
 {Vsn,
  [{UpFromVsn1, InstructionsU1},
@@ -401,24 +404,27 @@
  [{DownToVsn1, InstructionsD1},
   ...,
   {DownToVsnK, InstructionsDK}]}.</code>
-    <p><c>Vsn</c>, a string, is the current version of the application,
-      as defined in the <c>.app</c> file. Each <c>UpFromVsn</c>
-      is a previous version of the application to upgrade from, and each
-      <c>DownToVsn</c> is a previous version of the application to
-      downgrade to. Each <c>Instructions</c> is a list of release
-      handling instructions.</p>
-    <p>The syntax and contents of the <c>appup</c> file are described
-      in detail in <c>appup(4)</c>.</p>
-    <p>In the chapter <seealso marker="appup_cookbook">Appup Cookbook</seealso>, examples of <c>.appup</c> files for typical
-      upgrade/downgrade cases are given.</p>
-    <p>Example: Consider the release <c>ch_rel-1</c> from
-      the <seealso marker="release_structure#ch_rel">Releases</seealso>
-      chapter. Assume we want to add a function <c>available/0</c> to
-      the server <c>ch3</c> which returns the number of available
-      channels:</p>
-    <p>(Hint: When trying out the example, make the changes in a copy of
-      the original directory, so that the first versions are still
-      available.)</p>
+  <list type="bulleted">
+    <item><c>Vsn</c>, a string, is the current version of the application,
+    as defined in the <c>.app</c> file.</item>
+    <item>Each <c>UpFromVsn</c> is a previous version of the application
+    to upgrade from.</item>
+    <item>Each <c>DownToVsn</c> is a previous version of the application
+    to downgrade to.</item>
+    <item>Each <c>Instructions</c> is a list of release handling
+    instructions.</item>
+  </list>
+    <p>For information about the syntax and contents of the <c>.appup</c>
+      file, see the <c>appup(4)</c> manual page in SASL.</p>
+    <p><seealso marker="appup_cookbook">Appup Cookbook</seealso>
+      includes examples of <c>.appup</c> files for typical upgrade/downgrade
+      cases.</p>
+    <p><em>Example:</em> Consider the release <c>ch_rel-1</c> from
+      <seealso marker="release_structure#ch_rel">Releases</seealso>.
+      Assume you want to add a function <c>available/0</c> to server
+      <c>ch3</c>, which returns the number of available channels (when
+      trying out the example, change in a copy of the original
+      directory, so that the first versions are still available):</p>
     <code type="none">
 -module(ch3).
 -behaviour(gen_server).
@@ -465,9 +471,9 @@ handle_cast({free, Ch}, Chs) ->
   {mod, {ch_app,[]}}
  ]}.</code>
     <p>To upgrade <c>ch_app</c> from <c>"1"</c> to <c>"2"</c> (and
-      to downgrade from <c>"2"</c> to <c>"1"</c>), we simply need to
+      to downgrade from <c>"2"</c> to <c>"1"</c>), you only need to
       load the new (old) version of the <c>ch3</c> callback module.
-      We create the application upgrade file <c>ch_app.appup</c> in
+      Create the application upgrade file <c>ch_app.appup</c> in
       the <c>ebin</c> directory:</p>
     <code type="none">
 {"2",
@@ -480,25 +486,25 @@ handle_cast({free, Ch}, Chs) ->
     <marker id="relup"></marker>
     <title>Release Upgrade File</title>
     <p>To define how to upgrade/downgrade between the new version and
-      previous versions of a release, we create a <em>release upgrade file</em>, or in short <c>relup</c> file.</p>
+      previous versions of a release, a <em>release upgrade file</em>,
+      or in short <c>relup</c> file, is to be created.</p>
     <p>This file does not need to be created manually, it can be
       generated by <c>systools:make_relup/3,4</c>. The relevant versions
-      of the <c>.rel</c> file, <c>.app</c> files and <c>.appup</c> files
-      are used as input. It is deducted which applications should be
-      added and deleted, and which applications that need to be upgraded
-      and/or downgraded. The instructions for this is fetched from
+      of the <c>.rel</c> file, <c>.app</c> files, and <c>.appup</c> files
+      are used as input. It is deducted which applications are to be
+      added and deleted, and which applications that must be upgraded
+      and/or downgraded. The instructions for this are fetched from
       the <c>.appup</c> files and transformed into a single list of
       low-level instructions in the right order.</p>
     <p>If the <c>relup</c> file is relatively simple, it can be created
-      manually. Remember that it should only contain low-level
-      instructions.</p>
-    <p>The syntax and contents of the release upgrade file are
-      described in detail in <c>relup(4)</c>.</p>
-    <p>Example, continued from the previous section. We have a new
-      version "2" of <c>ch_app</c> and an <c>.appup</c> file. We also
-      need a new version of the <c>.rel</c> file. This time the file is
-      called <c>ch_rel-2.rel</c> and the release version string is
-      changed changed from "A" to "B":</p>
+      manually. It it only to contain low-level instructions.</p>
+    <p>For details about the syntax and contents of the release upgrade
+      file, see the <c>relup(4)</c> manual page in SASL.</p>
+    <p><em>Example, continued from the previous section:</em> You have a
+      new version "2" of <c>ch_app</c> and an <c>.appup</c> file. A new
+      version of the <c>.rel</c> file is also needed. This time the file
+      is called <c>ch_rel-2.rel</c> and the release version string is
+      changed from "A" to "B":</p>
     <code type="none">
 {release,
  {"ch_rel", "B"},
@@ -512,13 +518,13 @@ handle_cast({free, Ch}, Chs) ->
     <pre>
 1> <input>systools:make_relup("ch_rel-2", ["ch_rel-1"], ["ch_rel-1"]).</input>
 ok</pre>
-    <p>This will generate a <c>relup</c> file with instructions for
+    <p>This generates a <c>relup</c> file with instructions for
       how to upgrade from version "A" ("ch_rel-1") to version "B"
       ("ch_rel-2") and how to downgrade from version "B" to version "A".</p>
-    <p>Note that both the old and new versions of the <c>.app</c> and
-      <c>.rel</c> files must be in the code path, as well as
-      the <c>.appup</c> and (new) <c>.beam</c> files. It is possible
-      to extend the code path by using the option <c>path</c>:</p>
+    <p>Both the old and new versions of the <c>.app</c> and
+      <c>.rel</c> files must be in the code path, as well as the
+      <c>.appup</c> and (new) <c>.beam</c> files. The code path can be
+      extended by using the option <c>path</c>:</p>
     <pre>
 1> <input>systools:make_relup("ch_rel-2", ["ch_rel-1"], ["ch_rel-1"],</input>
 <input>[{path,["../ch_rel-1",</input>
@@ -529,31 +535,34 @@ ok</pre>
   <section>
     <marker id="rel_handler"></marker>
     <title>Installing a Release</title>
-    <p>When we have made a new version of a release, a release package
+    <p>When you have made a new version of a release, a release package
       can be created with this new version and transferred to the target
       environment.</p>
-    <p>To install the new version of the release in run-time,
+    <p>To install the new version of the release in runtime,
       the <em>release handler</em> is used. This is a process belonging
-      to the SASL application, that handles unpacking, installation,
-      and removal of release packages. It is interfaced through
-      the module <c>release_handler</c>, which is described in detail in
-      <c>release_handler(3)</c>.</p>
-    <p>Assuming there is a target system up and running with
+      to the SASL application, which handles unpacking, installation,
+      and removal of release packages. It is communicated through
+      the <c>release_handler</c> module. For details, see the
+      <c>release_handler(3)</c> manual page in SASL.</p>
+    <p>Assuming there is an operational target system with
       installation root directory <c>$ROOT</c>, the release package with
-      the new version of the release should be copied to
+      the new version of the release is to be copied to
       <c>$ROOT/releases</c>.</p>
-    <p>The first action is to <em>unpack</em> the release package,
-      the files are then extracted from the package:</p>
+    <p>First, <em>unpack</em> the release package.
+      The files are then extracted from the package:</p>
     <code type="none">
 release_handler:unpack_release(ReleaseName) => {ok, Vsn}</code>
-    <p><c>ReleaseName</c> is the name of the release package except
-      the <c>.tar.gz</c> extension. <c>Vsn</c> is the version of
-      the unpacked release, as defined in its <c>.rel</c> file.</p>
-    <p>A directory <c>$ROOT/lib/releases/Vsn</c> will be created, where
+   <list type="bulleted">
+     <item><c>ReleaseName</c> is the name of the release package except
+     the <c>.tar.gz</c> extension.</item>
+     <item><c>Vsn</c> is the version of the unpacked release, as
+     defined in its <c>.rel</c> file.</item>
+   </list>
+    <p>A directory <c>$ROOT/lib/releases/Vsn</c> is created, where
       the <c>.rel</c> file, the boot script <c>start.boot</c>,
-      the system configuration file <c>sys.config</c> and <c>relup</c>
+      the system configuration file <c>sys.config</c>, and <c>relup</c>
       are placed. For applications with new version numbers,
-      the application directories will be placed under <c>$ROOT/lib</c>.
+      the application directories are placed under <c>$ROOT/lib</c>.
       Unchanged applications are not affected.</p>
     <p>An unpacked release can be <em>installed</em>. The release
       handler then evaluates the instructions in <c>relup</c>, step by
@@ -563,11 +572,11 @@ release_handler:install_release(Vsn) => {ok, FromVsn, []}</code>
     <p>If an error occurs during the installation, the system is
       rebooted using the old version of the release. If installation
       succeeds, the system is afterwards using the new version of
-      the release, but should anything happen and the system is
-      rebooted, it would start using the previous version again. To be
-      made the default version, the newly installed release must be made
-      <em>permanent</em>, which means the previous version becomes
-      <em>old</em>:</p>
+      the release, but if anything happens and the system is
+      rebooted, it starts using the previous version again.</p>
+      <p>To be made the default version, the newly installed release
+      must be made <em>permanent</em>, which means the previous
+      version becomes <em>old</em>:</p>
     <code type="none">
 release_handler:make_permanent(Vsn) => ok</code>
     <p>The system keeps information about which versions are old and
@@ -579,41 +588,44 @@ release_handler:make_permanent(Vsn) => ok</code>
 release_handler:install_release(FromVsn) => {ok, Vsn, []}</code>
     <p>An installed, but not permanent, release can be <em>removed</em>.
       Information about the release is then deleted from
-      <c>$ROOT/releases/RELEASES</c> and the release specific code,
-      that is the new application directories and
+      <c>$ROOT/releases/RELEASES</c> and the release-specific code,
+      that is, the new application directories and
       the <c>$ROOT/releases/Vsn</c> directory, are removed.</p>
     <code type="none">
 release_handler:remove_release(Vsn) => ok</code>
-    <p>Example, continued from the previous sections:</p>
-    <p>1) Create a target system as described in <em>System Principles</em> of the first version <c>"A"</c> of <c>ch_rel</c>
-      from
-      the <seealso marker="release_structure#ch_rel">Releases</seealso>
-      chapter. This time <c>sys.config</c> must be included in
-      the release package. If no configuration is needed, the file
-      should contain the empty list:</p>
-    <code type="none">
+
+    <section>
+      <title>Example (continued from the previous sections)</title>
+    <p><em>Step 1)</em> Create a target system as described in
+      System Principles of the first version <c>"A"</c>
+      of <c>ch_rel</c> from
+      <seealso marker="release_structure#ch_rel">Releases</seealso>.
+      This time <c>sys.config</c> must be included in the release package.
+      If no configuration is needed, the file is to contain the empty
+      list:</p>
+      <code type="none">
 [].</code>
-    <p>2) Start the system as a simple target system. Note that in
-      reality, it should be started as an embedded system. However,
-      using <c>erl</c> with the correct boot script and config file is
-      enough for illustration purposes:</p>
-    <pre>
+    <p><em>Step 2)</em> Start the system as a simple target system. In
+      reality, it is to be started as an embedded system. However, using
+      <c>erl</c> with the correct boot script and config file is enough for
+      illustration purposes:</p>
+      <pre>
 % <input>cd $ROOT</input>
 % <input>bin/erl -boot $ROOT/releases/A/start -config $ROOT/releases/A/sys</input>
 ...</pre>
     <p><c>$ROOT</c> is the installation directory of the target system.</p>
-    <p>3) In another Erlang shell, generate start scripts and create a
-      release package for the new version <c>"B"</c>. Remember to
-      include (a possible updated) <c>sys.config</c> and
-      the <c>relup</c> file, see <seealso marker="#relup">Release Upgrade File</seealso> above.</p>
-    <pre>
+    <p><em>Step 3)</em> In another Erlang shell, generate start scripts and
+      create a release package for the new version <c>"B"</c>. Remember to
+      include (a possible updated) <c>sys.config</c> and the <c>relup</c> file,
+      see <seealso marker="#relup">Release Upgrade File</seealso>.</p>
+      <pre>
 1> <input>systools:make_script("ch_rel-2").</input>
 ok
 2> <input>systools:make_tar("ch_rel-2").</input>
 ok</pre>
-    <p>The new release package now contains version "2" of <c>ch_app</c>
-      and the <c>relup</c> file as well:</p>
-    <code type="none">
+    <p>The new release package now also contains version "2" of <c>ch_app</c>
+      and the <c>relup</c> file:</p>
+      <code type="none">
 % tar tf ch_rel-2.tar 
 lib/kernel-2.9/ebin/kernel.app
 lib/kernel-2.9/ebin/application.beam
@@ -633,28 +645,30 @@ releases/B/relup
 releases/B/sys.config
 releases/B/ch_rel-2.rel
 releases/ch_rel-2.rel</code>
-    <p>4) Copy the release package <c>ch_rel-2.tar.gz</c> to
-      the <c>$ROOT/releases</c> directory.</p>
-    <p>5) In the running target system, unpack the release package:</p>
-    <pre>
+    <p><em>Step 4)</em> Copy the release package <c>ch_rel-2.tar.gz</c>
+      to the <c>$ROOT/releases</c> directory.</p>
+    <p><em>Step 5)</em> In the running target system, unpack the release
+      package:</p>
+      <pre>
 1> <input>release_handler:unpack_release("ch_rel-2").</input>
 {ok,"B"}</pre>
     <p>The new application version <c>ch_app-2</c> is installed under
       <c>$ROOT/lib</c> next to <c>ch_app-1</c>. The <c>kernel</c>,
-      <c>stdlib</c> and <c>sasl</c> directories are not affected, as
+      <c>stdlib</c>, and <c>sasl</c> directories are not affected, as
       they have not changed.</p>
     <p>Under <c>$ROOT/releases</c>, a new directory <c>B</c> is created,
       containing <c>ch_rel-2.rel</c>, <c>start.boot</c>,
-      <c>sys.config</c> and <c>relup</c>.</p>
-    <p>6) Check if the function <c>ch3:available/0</c> is available:</p>
-    <pre>
+      <c>sys.config</c>, and <c>relup</c>.</p>
+    <p><em>Step 6)</em> Check if the function <c>ch3:available/0</c> is
+      available:</p>
+      <pre>
 2> <input>ch3:available().</input>
 ** exception error: undefined function ch3:available/0</pre>
-    <p>7) Install the new release. The instructions in
+    <p><em>Step 7)</em> Install the new release. The instructions in
       <c>$ROOT/releases/B/relup</c> are executed one by one, resulting
       in the new version of <c>ch3</c> being loaded. The function
       <c>ch3:available/0</c> is now available:</p>
-    <pre>
+      <pre>
 3> <input>release_handler:install_release("B").</input>
 {ok,"A",[]}
 4> <input>ch3:available().</input>
@@ -663,15 +677,16 @@ releases/ch_rel-2.rel</code>
 ".../lib/ch_app-2/ebin/ch3.beam"
 6> <input>code:which(ch_sup).</input>
 ".../lib/ch_app-1/ebin/ch_sup.beam"</pre>
-    <p>Note that processes in <c>ch_app</c> for which code have not
-      been updated, for example the supervisor, are still evaluating
+    <p>Processes in <c>ch_app</c> for which code have not
+      been updated, for example, the supervisor, are still evaluating
       code from <c>ch_app-1</c>.</p>
-    <p>8) If the target system is now rebooted, it will use version "A"
-      again. The "B" version must be made permanent, in order to be
+    <p><em>Step 8)</em> If the target system is now rebooted, it uses
+      version "A" again. The "B" version must be made permanent, to be
       used when the system is rebooted.</p>
-    <pre>
+      <pre>
 7> <input>release_handler:make_permanent("B").</input>
 ok</pre>
+    </section>
   </section>
 
   <section>
@@ -681,37 +696,40 @@ ok</pre>
       specifications are automatically updated for all loaded
       applications.</p>
     <note>
-      <p>The information about the new application specifications are
+      <p>The information about the new application specifications is
         fetched from the boot script included in the release package.
-        It is therefore important that the boot script is generated from
+        Thus, it is important that the boot script is generated from
         the same <c>.rel</c> file as is used to build the release
         package itself.</p>
     </note>
     <p>Specifically, the application configuration parameters are
       automatically updated according to (in increasing priority
       order):</p>
-    <list type="ordered">
+    <list type="bulleted">
       <item>The data in the boot script, fetched from the new
        application resource file <c>App.app</c></item>
       <item>The new <c>sys.config</c></item>
-      <item>Command line arguments <c>-App Par Val</c></item>
+      <item>Command-line arguments <c>-App Par Val</c></item>
     </list>
     <p>This means that parameter values set in the other system
-      configuration files, as well as values set using
-      <c>application:set_env/3</c>, are disregarded.</p>
+      configuration files and values set using
+      <c>application:set_env/3</c> are disregarded.</p>
     <p>When an installed release is made permanent, the system process
       <c>init</c> is set to point out the new <c>sys.config</c>.</p>
-    <p>After the installation, the application controller will compare
+    <p>After the installation, the application controller compares
       the old and new configuration parameters for all running
       applications and call the callback function:</p>
     <code type="none">
 Module:config_change(Changed, New, Removed)</code>
-    <p><c>Module</c> is the application callback module as defined by
-      the <c>mod</c> key in the <c>.app</c> file. <c>Changed</c> and
-      <c>New</c> are lists of <c>{Par,Val}</c> for all changed and
-      added configuration parameters, respectively. <c>Removed</c> is
-      a list of all parameters <c>Par</c> that have been removed.</p>
-    <p>The function is optional and may be omitted when implementing an
+    <list type="bulleted">
+      <item><c>Module</c> is the application callback module as defined
+      by the <c>mod</c> key in the <c>.app</c> file.</item>
+      <item><c>Changed</c> and <c>New</c> are lists of <c>{Par,Val}</c> for
+      all changed and added configuration parameters, respectively.</item>
+      <item><c>Removed</c> is a list of all parameters <c>Par</c> that have
+      been removed.</item>
+    </list>
+    <p>The function is optional and can be omitted when implementing an
       application callback module.</p>
   </section>
 </chapter>
diff --git a/system/doc/design_principles/release_structure.xml b/system/doc/design_principles/release_structure.xml
index cec33f42e3..aa04f5e6a3 100644
--- a/system/doc/design_principles/release_structure.xml
+++ b/system/doc/design_principles/release_structure.xml
@@ -28,21 +28,23 @@
     <rev></rev>
     <file>release_structure.xml</file>
   </header>
-  <p>This chapter should be read in conjuction with <c>rel(4)</c>,
-    <c>systools(3)</c> and <c>script(4)</c>.</p>
+  <marker id="releases section"></marker>
+  <p>This section is to be read with the <c>rel(4)</c>, <c>systools(3)</c>,
+  and <c>script(4)</c> manual pages in SASL.</p>
 
   <section>
     <title>Release Concept</title>
-    <p>When we have written one or more applications, we might want to
-      create a complete system consisting of these applications and a
+    <p>When you have written one or more applications, you might want
+      to create a complete system with these applications and a
       subset of the Erlang/OTP applications. This is called a
       <em>release</em>.</p>
-    <p>To do this, we create a <seealso marker="#res_file">release resource file</seealso> which defines which applications
-      are included in the release.</p>
+    <p>To do this, create a
+    <seealso marker="#res_file">release resource file</seealso> that
+      defines which applications are included in the release.</p>
     <p>The release resource file is used to generate
       <seealso marker="#boot">boot scripts</seealso> and
       <seealso marker="#pack">release packages</seealso>. A system
-      which is transfered to and installed at another site is called a
+      that is transferred to and installed at another site is called a
       <em>target system</em>. How to use a release package to create a
       target system is described in System Principles.</p>
   </section>
@@ -50,29 +52,30 @@
   <section>
     <marker id="res_file"></marker>
     <title>Release Resource File</title>
-    <p>To define a release, we create a <em>release resource file</em>,
-      or in short <c>.rel</c> file, where we specify the name and
-      version of the release, which ERTS version it is based on, and
-      which applications it consists of:</p>
+    <p>To define a release, create a <em>release resource file</em>,
+      or in short a <c>.rel</c> file. In the file, specify the name and
+      version of the release, which ERTS version it is based on,
+      and which applications it consists of:</p>
     <code type="none">
 {release, {Name,Vsn}, {erts, EVsn},
  [{Application1, AppVsn1},
    ...
   {ApplicationN, AppVsnN}]}.</code>
+    <p><c>Name</c>, <c>Vsn</c>, <c>EVsn</c>, and <c>AppVsn</c> are
+    strings.</p>
     <p>The file must be named <c>Rel.rel</c>, where <c>Rel</c> is a
       unique name.</p>
-    <p><c>Name</c>, <c>Vsn</c> and <c>EVsn</c> are strings.</p>
-    <p>Each <c>Application</c> (atom) and <c>AppVsn</c> (string) is
+    <p>Each <c>Application</c> (atom) and <c>AppVsn</c> is
       the name and version of an application included in the release.
-      Note that the minimal release based on Erlang/OTP consists of
-      the <c>kernel</c> and <c>stdlib</c> applications, so these
+      The minimal release based on Erlang/OTP consists of
+      the Kernel and STDLIB applications, so these
       applications must be included in the list.</p>
     <p>If the release is to be upgraded, it must also include
-      the <c>sasl</c> application.</p>
+      the SASL application.</p>
     <marker id="ch_rel"></marker>
-    <p>Example: We want to make a release of <c>ch_app</c> from
-      the <seealso marker="applications#ch_app">Applications</seealso>
-      chapter. It has the following <c>.app</c> file:</p>
+    <p><em>Example: </em> A release of <c>ch_app</c> from
+      <seealso marker="applications#ch_app">Applications</seealso>
+      has the following <c>.app</c> file:</p>
     <code type="none">
 {application, ch_app,
  [{description, "Channel allocator"},
@@ -83,8 +86,8 @@
   {mod, {ch_app,[]}}
  ]}.</code>
     <p>The <c>.rel</c> file must also contain <c>kernel</c>,
-      <c>stdlib</c> and <c>sasl</c>, since these applications are
-      required by <c>ch_app</c>. We call the file <c>ch_rel-1.rel</c>:</p>
+      <c>stdlib</c>, and <c>sasl</c>, as these applications are required
+      by <c>ch_app</c>. The file is called <c>ch_rel-1.rel</c>:</p>
     <code type="none">
 {release,
  {"ch_rel", "A"},
@@ -99,24 +102,28 @@
   <section>
     <marker id="boot"></marker>
     <title>Generating Boot Scripts</title>
-    <p>There are tools in the SASL module <c>systools</c> available to
-      build and check releases. The functions read the <c>.rel</c> and
+    <p><c>systools</c> in the SASL application includes tools to
+      build and check releases. The functions read the <c>rel</c> and
       <c>.app</c> files and performs syntax and dependency checks.
-      The function <c>systools:make_script/1,2</c> is used to generate
-      a boot script (see System Principles).</p>
+      The <c>systools:make_script/1,2</c> function is used to generate
+      a boot script (see System Principles):</p>
     <pre>
 1> <input>systools:make_script("ch_rel-1", [local]).</input>
 ok</pre>
-    <p>This creates a boot script, both the readable version
-      <c>ch_rel-1.script</c> and the binary version used by the runtime
-      system, <c>ch_rel-1.boot</c>. <c>"ch_rel-1"</c> is the name of
-      the <c>.rel</c> file, minus the extension. <c>local</c> is an
-      option that means that the directories where the applications are
-      found are used in the boot script, instead of <c>$ROOT/lib</c>.
-      (<c>$ROOT</c> is the root directory of the installed release.)
-      This is a useful way to test a generated boot script locally.</p>
+    <p>This creates a boot script, both the readable version,
+    <c>ch_rel-1.script</c>, and the binary version, <c>ch_rel-1.boot</c>,
+    used by the runtime system.</p>
+    <list type="bulleted">
+      <item><c>"ch_rel-1"</c> is the name of the <c>.rel</c> file,
+      minus the extension.</item>
+      <item><c>local</c> is an option that means that the directories
+      where the applications are found are used in the boot script,
+      instead of <c>$ROOT/lib</c> (<c>$ROOT</c> is the root directory
+      of the installed release).</item>
+    </list>
+    <p> This is a useful way to test a generated boot script locally.</p>
     <p>When starting Erlang/OTP using the boot script, all applications
-      from the <c>.rel</c> file are automatically loaded and started:</p>
+    from the <c>.rel</c> file are automatically loaded and started:</p>
     <pre>
 % <input>erl -boot ch_rel-1</input>
 Erlang (BEAM) emulator version 5.3
@@ -147,18 +154,24 @@ Eshell V5.3  (abort with ^G)
   <section>
     <marker id="pack"></marker>
     <title>Creating a Release Package</title>
-    <p>There is a function <c>systools:make_tar/1,2</c> which takes
-      a <c>.rel</c> file as input and creates a zipped tar-file with
-      the code for the specified applications, a <em>release package</em>.</p>
+    <p>The <c>systools:make_tar/1,2</c> function takes a <c>.rel</c> file
+    as input and creates a zipped tar file with the code for the specified
+    applications, a <em>release package</em>:</p>
     <pre>
 1> <input>systools:make_script("ch_rel-1").</input>
 ok
 2> <input>systools:make_tar("ch_rel-1").</input>
 ok</pre>
-    <p>The release package by default contains the <c>.app</c> files and
-      object code for all applications, structured according to
-      the <seealso marker="applications#app_dir">application directory structure</seealso>, the binary boot script renamed to
-      <c>start.boot</c>, and the <c>.rel</c> file.</p>
+   <p>The release package by default contains:</p>
+   <list type="bulleted">
+     <item>The <c>.app</c> files</item>
+     <item>The <c>.rel</c> file</item>
+     <item>The object code for all applications, structured according
+     to the
+     <seealso marker="applications#app_dir">application directory
+     structure</seealso></item>
+     <item>The binary boot script renamed to <c>start.boot</c></item>
+   </list>
     <pre>
 % <input>tar tf ch_rel-1.tar</input>
 lib/kernel-2.9/ebin/kernel.app
@@ -177,40 +190,39 @@ lib/ch_app-1/ebin/ch3.beam
 releases/A/start.boot
 releases/A/ch_rel-1.rel
 releases/ch_rel-1.rel</pre>
-    <p>Note that a new boot script was generated, without
+    <p>A new boot script was generated, without
       the <c>local</c> option set, before the release package was made.
       In the release package, all application directories are placed
-      under <c>lib</c>. Also, we do not know where the release package
-      will be installed, so we do not want any hardcoded absolute paths
-      in the boot script here.</p>
+      under <c>lib</c>. You do not know where the release package
+      will be installed, so no hard-coded absolute paths are allowed.</p>
     <p>The release resource file <c>mysystem.rel</c> is duplicated in
       the tar file. Originally, this file was only stored in
-      the <c>releases</c> directory in order to make it possible for
+      the <c>releases</c> directory to make it possible for
       the <c>release_handler</c> to extract this file
       separately. After unpacking the tar file, <c>release_handler</c>
       would automatically copy the file
       to <c>releases/FIRST</c>. However, sometimes the tar file is
-      unpacked without involving the <c>release_handler</c> (e.g. when
-      unpacking the first target system) and therefore the file is now
-      instead duplicated in the tar file so no manual copying is
-      necessary.</p>
+      unpacked without involving the <c>release_handler</c> (for
+      example, when unpacking the first target system) and the file
+      is therefore now instead duplicated in the tar file so no manual
+      copying is necessary.</p>
     <p>If a <c>relup</c> file and/or a system configuration file called
-      <c>sys.config</c> is found, these files are included in
-      the release package as well. See
+      <c>sys.config</c> is found, these files are also included in
+      the release package. See
       <seealso marker="release_handling#req">Release Handling</seealso>.</p>
     <p>Options can be set to make the release package include source
       code and the ERTS binary as well.</p>
-    <p>Refer to System Principles for how to install the first target
-      system, using a release package, and to
-      <seealso marker="release_handling">Release Handling</seealso> for
-      how to install a new release package in an existing system.</p>
+    <p>For information on how to install the first target system, using
+      a release package, see System Principles. For information
+      on how to install a new release package in an existing system, see
+      <seealso marker="release_handling">Release Handling</seealso>.</p>
   </section>
 
   <section>
     <marker id="reldir"></marker>
     <title>Directory Structure</title>
-    <p>Directory structure for the code installed by the release handler
-      from a release package:</p>
+    <p>The directory structure for the code installed by the release handler
+      from a release package is as follows:</p>
     <code type="none">
 $ROOT/lib/App1-AVsn1/ebin
                     /priv
@@ -222,24 +234,18 @@ $ROOT/lib/App1-AVsn1/ebin
      /erts-EVsn/bin
      /releases/Vsn
      /bin</code>
-    <taglist>
-      <tag><c>lib</c></tag>
-      <item>Application directories.</item>
-      <tag><c>erts-EVsn/bin</c></tag>
-      <item>Erlang runtime system executables.</item>
-      <tag><c>releases/Vsn</c></tag>
-      <item><c>.rel</c> file and boot script <c>start.boot</c>.      <br></br>
-
-       If present in the release package,      <br></br>
-<c>relup</c> and/or <c>sys.config</c>.</item>
-      <tag><c>bin</c></tag>
-      <item>Top level Erlang runtime system executables.</item>
-    </taglist>
-    <p>Applications are not required to be located under the
-      <c>$ROOT/lib</c> directory. Accordingly, several installation
-      directories may exist which contain different parts of a
-      system. For example, the previous example could be extended as
-      follows:</p>
+     <list type="bulleted">
+       <item><c>lib</c> - Application directories</item>
+       <item><c>erts-EVsn/bin</c> - Erlang runtime system executables</item>
+       <item><c>releases/Vsn</c> - <c>.rel</c> file and boot script
+       <c>start.boot</c>; if present in the release package, <c>relup</c>
+       and/or <c>sys.config</c></item>
+       <item><c>bin</c> - Top-level Erlang runtime system executables</item>
+     </list>
+    <p>Applications are not required to be located under directory
+      <c>$ROOT/lib</c>. Several installation directories, which contain
+      different parts of a system, can thus exist.
+      For example, the previous example can be extended as follows:</p>
     <pre>
 $SECOND_ROOT/.../SApp1-SAVsn1/ebin
                              /priv
@@ -256,24 +262,24 @@ $THIRD_ROOT/TApp1-TAVsn1/ebin
            ...
            /TAppN-TAVsnN/ebin
                         /priv</pre>
-    <p>The <c>$SECOND_ROOT</c> and <c>$THIRD_ROOT</c> are introduced as
+    <p><c>$SECOND_ROOT</c> and <c>$THIRD_ROOT</c> are introduced as
       <c>variables</c> in the call to the <c>systools:make_script/2</c>
       function.</p>
 
     <section>
       <title>Disk-Less and/or Read-Only Clients</title>
-      <p>If a complete system consists of some disk-less and/or
-        read-only client nodes, a <c>clients</c> directory should be
-        added to the <c>$ROOT</c> directory. By a read-only node we
-        mean a node with a read-only file system.</p>
-      <p>The <c>clients</c> directory should have one sub-directory
+      <p>If a complete system consists of disk-less and/or
+        read-only client nodes, a <c>clients</c> directory is to be
+        added to the <c>$ROOT</c> directory. A read-only node is
+        a node with a read-only file system.</p>
+      <p>The <c>clients</c> directory is to have one subdirectory
         per supported client node. The name of each client directory
-        should be the name of the corresponding client node. As a
-        minimum, each client directory should contain the <c>bin</c> and
-        <c>releases</c> sub-directories. These directories are used to
+        is to be the name of the corresponding client node. As a
+        minimum, each client directory is to contain the <c>bin</c> and
+        <c>releases</c> subdirectories. These directories are used to
         store information about installed releases and to appoint the
-        current release to the client. Accordingly, the <c>$ROOT</c>
-        directory contains the following:</p>
+        current release to the client. The <c>$ROOT</c>
+        directory thus contains the following:</p>
       <code type="none">
 $ROOT/...
     /clients/ClientName1/bin
@@ -283,14 +289,14 @@ $ROOT/...
             ...
             /ClientNameN/bin
                         /releases/Vsn</code>
-      <p>This structure should be used if all clients are running
+      <p>This structure is to be used if all clients are running
         the same type of Erlang machine. If there are clients running
         different types of Erlang machines, or on different operating
-        systems, the <c>clients</c> directory could be divided into one
-        sub-directory per type of Erlang machine. Alternatively, you
-        can set up one <c>$ROOT</c> per type of machine. For each
+        systems, the <c>clients</c> directory can be divided into one
+        subdirectory per type of Erlang machine. Alternatively, one
+	<c>$ROOT</c> can be set up per type of machine. For each
         type, some of the directories specified for the <c>$ROOT</c>
-        directory should be included:</p>
+        directory are to be included:</p>
       <code type="none">
 $ROOT/...
     /clients/Type1/lib
diff --git a/system/doc/design_principles/spec_proc.xml b/system/doc/design_principles/spec_proc.xml
index e4fb5fdca7..aceb5ba99e 100644
--- a/system/doc/design_principles/spec_proc.xml
+++ b/system/doc/design_principles/spec_proc.xml
@@ -21,30 +21,31 @@
     
     </legalnotice>
 
-    <title>Sys and Proc_Lib</title>
+    <title>sys and proc_lib</title>
     <prepared></prepared>
     <docno></docno>
     <date></date>
     <rev></rev>
     <file>spec_proc.xml</file>
   </header>
-  <p>The module <c>sys</c> contains functions for simple debugging of
-    processes implemented using behaviours.</p>
-  <p>There are also functions that, together with functions in
-    the module <c>proc_lib</c>, can be used to implement a
-    <em>special process</em>, a process which comply to the OTP design
-    principles without making use of a standard behaviour. They can
-    also be used to implement user defined (non-standard) behaviours.</p>
-  <p>Both <c>sys</c> and <c>proc_lib</c> belong to the STDLIB
-    application.</p>
+  <marker id="sys and proc_lib"></marker>
+    <p>The <c>sys</c> module has functions for simple debugging of
+      processes implemented using behaviours. It also has functions that,
+      together with functions in the <c>proc_lib</c> module, can be used
+      to implement a <em>special process</em> that complies to the OTP
+      design principles without using a standard behaviour. These
+      functions can also be used to implement user-defined (non-standard)
+      behaviours.</p>
+    <p>Both <c>sys</c> and <c>proc_lib</c> belong to the STDLIB
+      application.</p>
 
   <section>
     <title>Simple Debugging</title>
-    <p>The module <c>sys</c> contains some functions for simple debugging
-      of processes implemented using behaviours. We use the
-      <c>code_lock</c> example from
-      the <seealso marker="fsm#ex">gen_fsm</seealso> chapter to
-      illustrate this:</p>
+    <p>The <c>sys</c> module has functions for simple debugging of
+    processes implemented using behaviours. The <c>code_lock</c>
+    example from
+    <seealso marker="fsm#ex">gen_fsm Behaviour</seealso>
+    is used to illustrate this:</p>
     <pre>
 % <input>erl</input>
 Erlang (BEAM) emulator version 5.2.3.6 [hipe] [threads:0]
@@ -102,16 +103,18 @@ ok
 
   <section>
     <title>Special Processes</title>
-    <p>This section describes how to write a process which comply to
-      the OTP design principles, without making use of a standard
-      behaviour. Such a process should:</p>
+    <p>This section describes how to write a process that complies to
+    the OTP design principles, without using a standard behaviour.
+    Such a process is to:</p>
     <list type="bulleted">
-      <item>be started in a way that makes the process fit into a
-       supervision tree,</item>
-      <item>support the <c>sys</c> <seealso marker="#debug">debug facilities</seealso>, and</item>
-      <item>take care of <seealso marker="#msg">system messages</seealso>.</item>
+      <item>Be started in a way that makes the process fit into a
+      supervision tree</item>
+      <item>Support the <c>sys</c>
+      <seealso marker="#debug">debug facilities</seealso></item>
+      <item>Take care of
+      <seealso marker="#msg">system messages</seealso>.</item>
     </list>
-    <p>System messages are messages with special meaning, used in
+    <p>System messages are messages with a special meaning, used in
       the supervision tree. Typical system messages are requests for
       trace output, and requests to suspend or resume process execution
       (used during release handling). Processes implemented using
@@ -120,9 +123,9 @@ ok
     <section>
       <title>Example</title>
       <p>The simple server from
-        the <seealso marker="des_princ#ch1">Overview</seealso> chapter,
-        implemented using <c>sys</c> and <c>proc_lib</c> so it fits into
-        a supervision tree:</p>
+      <seealso marker="des_princ#ch1">Overview</seealso>,
+      implemented using <c>sys</c> and <c>proc_lib</c> so it fits into a
+      supervision tree:</p>
       <marker id="ex"></marker>
       <pre>
 -module(ch4).
@@ -190,8 +193,8 @@ system_replace_state(StateFun, Chs) ->
 
 write_debug(Dev, Event, Name) ->
     io:format(Dev, "~p event = ~p~n", [Name, Event]).</pre>
-      <p>Example on how the simple debugging functions in <c>sys</c> can
-        be used for <c>ch4</c> as well:</p>
+      <p>Example on how the simple debugging functions in the <c>sys</c>
+      module can also be used for <c>ch4</c>:</p>
       <pre>
 % <input>erl</input>
 Erlang (BEAM) emulator version 5.2.3.6 [hipe] [threads:0]
@@ -230,31 +233,32 @@ ok
 
     <section>
       <title>Starting the Process</title>
-      <p>A function in the <c>proc_lib</c> module should be used to
-        start the process. There are several possible functions, for
-        example <c>spawn_link/3,4</c> for asynchronous start and
+      <p>A function in the <c>proc_lib</c> module is to be used to
+        start the process. Several functions are available, for
+        example, <c>spawn_link/3,4</c> for asynchronous start and
         <c>start_link/3,4,5</c> for synchronous start.</p>
-      <p>A process started using one of these functions will store
-        information that is needed for a process in a supervision tree,
-        for example about the ancestors and initial call.</p>
-      <p>Also, if the process terminates with another reason than
-        <c>normal</c> or <c>shutdown</c>, a crash report (see SASL
-        User's Guide) is generated.</p>
-      <p>In the example, synchronous start is used. The process is
-        started by calling <c>ch4:start_link()</c>:</p>
+      <p>A process started using one of these functions stores
+        information (for example, about the ancestors and initial call)
+	that is needed for a process in a supervision tree.</p>
+      <p>If the process terminates with another reason than
+        <c>normal</c> or <c>shutdown</c>, a crash report is generated.
+	For more information about the crash report, see the SASL
+        User's Guide.</p>
+      <p>In the example, synchronous start is used. The process
+        starts by calling <c>ch4:start_link()</c>:</p>
       <code type="none">
 start_link() ->
     proc_lib:start_link(ch4, init, [self()]).</code>
       <p><c>ch4:start_link</c> calls the function
         <c>proc_lib:start_link</c>. This function takes a module name,
-        a function name and an argument list as arguments and spawns
+        a function name, and an argument list as arguments, spawns,
         and links to a new process. The new process starts by executing
-        the given function, in this case <c>ch4:init(Pid)</c>, where
-        <c>Pid</c> is the pid (<c>self()</c>) of the first process, that
-        is the parent process.</p>
-      <p>In <c>init</c>, all initialization including name registration
-        is done. The new process must also acknowledge that it has been
-        started to the parent:</p>
+        the given function, here <c>ch4:init(Pid)</c>, where
+        <c>Pid</c> is the pid (<c>self()</c>) of the first process,
+	which is the parent process.</p>
+      <p>All initialization, including name registration, is done in
+      <c>init</c>. The new process must also acknowledge that it has
+      been started to the parent:</p>
       <code type="none">
 init(Parent) ->
     ...
@@ -267,8 +271,8 @@ init(Parent) ->
     <section>
       <marker id="debug"></marker>
       <title>Debugging</title>
-      <p>To support the debug facilites in <c>sys</c>, we need a
-        <em>debug structure</em>, a term <c>Deb</c> which is
+      <p>To support the debug facilites in <c>sys</c>, a
+        <em>debug structure</em> is needed. The <c>Deb</c> term is
         initialized using <c>sys:debug_options/1</c>:</p>
       <code type="none">
 init(Parent) ->
@@ -278,50 +282,41 @@ init(Parent) ->
     loop(Chs, Parent, Deb).</code>
       <p><c>sys:debug_options/1</c> takes a list of options as argument.
         Here the list is empty, which means no debugging is enabled
-        initially. See <c>sys(3)</c> for information about possible
-        options.</p>
-      <p>Then for each <em>system event</em> that we want to be logged
-        or traced, the following function should be called.</p>
+        initially. For information about the possible options, see the
+        <c>sys(3)</c> manual page in STDLIB.</p>
+      <p>Then, for each <em>system event</em> to be logged
+        or traced, the following function is to be called.</p>
       <code type="none">
 sys:handle_debug(Deb, Func, Info, Event) => Deb1</code>
+<p>Here:</p>
       <list type="bulleted">
-        <item>
-          <p><c>Deb</c> is the debug structure.</p>
-        </item>
-        <item>
-          <p><c>Func</c> is a fun specifying
-            a (user defined) function used to format
+        <item><c>Deb</c> is the debug structure.</item>
+        <item><c>Func</c> is a fun specifying
+            a (user-defined) function used to format
             trace output. For each system event, the format function is
-            called as <c>Func(Dev, Event, Info)</c>, where:</p>
+            called as <c>Func(Dev, Event, Info)</c>, where:
           <list type="bulleted">
-            <item>
-              <p><c>Dev</c> is the IO device to which the output should
-                be printed. See <c>io(3)</c>.</p>
-            </item>
-            <item>
-              <p><c>Event</c> and <c>Info</c> are passed as-is from
-                <c>handle_debug</c>.</p>
-            </item>
+            <item><c>Dev</c> is the I/O device to which the output is to
+	      be printed. See the <c>io(3)</c> manual page in
+	      STDLIB.</item>
+            <item><c>Event</c> and <c>Info</c> are passed as is from
+                <c>handle_debug</c>.</item>
           </list>
         </item>
-        <item>
-          <p><c>Info</c> is used to pass additional information to
-            <c>Func</c>, it can be any term and is passed as-is.</p>
-        </item>
-        <item>
-          <p><c>Event</c> is the system event. It is up to the user to
-            define what a system event is and how it should be
-            represented, but typically at least incoming and outgoing
+        <item><c>Info</c> is used to pass more information to
+            <c>Func</c>. It can be any term and is passed as is.</item>
+        <item><c>Event</c> is the system event. It is up to the user to
+            define what a system event is and how it is to be
+            represented. Typically at least incoming and outgoing
             messages are considered system events and represented by
             the tuples <c>{in,Msg[,From]}</c> and <c>{out,Msg,To}</c>,
-            respectively.</p>
-        </item>
+            respectively.</item>
       </list>
       <p><c>handle_debug</c> returns an updated debug structure
         <c>Deb1</c>.</p>
       <p>In the example, <c>handle_debug</c> is called for each incoming
         and outgoing message. The format function <c>Func</c> is
-        the function <c>ch4:write_debug/3</c> which prints the message
+        the function <c>ch4:write_debug/3</c>, which prints the message
         using <c>io:format/3</c>.</p>
       <code type="none">
 loop(Chs, Parent, Deb) ->
@@ -354,22 +349,22 @@ write_debug(Dev, Event, Name) ->
 {system, From, Request}</code>
       <p>The content and meaning of these messages do not need to be
         interpreted by the process. Instead the following function
-        should be called:</p>
+        is to be called:</p>
       <code type="none">
 sys:handle_system_msg(Request, From, Parent, Module, Deb, State)</code>
-      <p>This function does not return. It will handle the system
-        message and then call:</p>
+      <p>This function does not return. It handles the system
+      message and then either calls the following if process execution is
+      to continue:</p>
       <code type="none">
 Module:system_continue(Parent, Deb, State)</code>
-      <p>if process execution should continue, or:</p>
+      <p>Or calls the following if the process is to terminate:</p>
       <code type="none">
 Module:system_terminate(Reason, Parent, Deb, State)</code>
-      <p>if the process should terminate. Note that a process in a
-        supervision tree is expected to terminate with the same reason as
-        its parent.</p>
+      <p>A process in a supervision tree is expected to terminate with
+      the same reason as its parent.</p>
       <list type="bulleted">
-        <item><c>Request</c> and <c>From</c> should be passed as-is from
-         the system message to the call to <c>handle_system_msg</c>.</item>
+        <item><c>Request</c> and <c>From</c> are to be passed as is from
+	the system message to the call to <c>handle_system_msg</c>.</item>
         <item><c>Parent</c> is the pid of the parent.</item>
         <item><c>Module</c> is the name of the module.</item>
         <item><c>Deb</c> is the debug structure.</item>
@@ -377,10 +372,12 @@ Module:system_terminate(Reason, Parent, Deb, State)</code>
          is passed to <c>system_continue</c>/<c>system_terminate</c>/
          <c>system_get_state</c>/<c>system_replace_state</c>.</item>
       </list>
-      <p>If the process should return its state <c>handle_system_msg</c> will call:</p>
+      <p>If the process is to return its state, <c>handle_system_msg</c>
+      calls:</p>
       <code type="none">
 Module:system_get_state(State)</code>
-      <p>or if the process should replace its state using the fun <c>StateFun</c>:</p>
+      <p>If the process is to replace its state using the fun <c>StateFun</c>,
+      <c>handle_system_msg</c> calls:</p>
       <code type="none">
 Module:system_replace_state(StateFun, State)</code>
       <p>In the example:</p>
@@ -407,9 +404,9 @@ system_replace_state(StateFun, Chs) ->
     NChs = StateFun(Chs),
     {ok, NChs, NChs}.
 </code>
-      <p>If the special process is set to trap exits, note that if
-        the parent process terminates, the expected behavior is to
-        terminate with the same reason:</p>
+      <p>If the special process is set to trap exits and if the parent
+      process terminates, the expected behavior is to terminate with
+      the same reason:</p>
       <code type="none">
 init(...) ->
     ...,
@@ -431,43 +428,74 @@ loop(...) ->
 
   <section>
     <title>User-Defined Behaviours</title>
-    <p><marker id="behaviours"/>To implement a user-defined behaviour, write code similar to
-      code for a special process but calling functions in a callback
+    <p><marker id="behaviours"/>To implement a user-defined behaviour,
+      write code similar to
+      code for a special process, but call functions in a callback
       module for handling specific tasks.</p>
-    <p>If it is desired that the compiler should warn for missing callback
-    functions, as it does for the OTP behaviours, add <c>-callback</c> attributes in the
+    <p>If the compiler is to warn for missing callback functions, as it
+    does for the OTP behaviours, add <c>-callback</c> attributes in the
     behaviour module to describe the expected callbacks:</p>
     <code type="none">
 -callback Name1(Arg1_1, Arg1_2, ..., Arg1_N1) -> Res1.
 -callback Name2(Arg2_1, Arg2_2, ..., Arg2_N2) -> Res2.
 ...
 -callback NameM(ArgM_1, ArgM_2, ..., ArgM_NM) -> ResM.</code>
-    <p>where <c>NameX</c> are the names of the expected callbacks and
-    <c>ArgX_Y</c>, <c>ResX</c> are types as they are described in Specifications
-    for functions in <seealso marker="../reference_manual/typespec">Types and
-    Function Specifications</seealso>. The whole syntax of <c>-spec</c> attribute is
-    supported by <c>-callback</c> attribute.</p>
-    <p>Alternatively you may directly implement and export the function:</p>
+    <p><c>NameX</c> are the names of the expected callbacks.
+      <c>ArgX_Y</c> and <c>ResX</c> are types as they are described in
+      <seealso marker="../reference_manual/typespec">Types and
+      Function Specifications</seealso>. The whole syntax of the <c>-spec</c>
+      attribute is supported by the <c>-callback</c> attribute.</p>
+    <p>Callback functions that are optional for the user of the
+      behaviour to implement are specified by use of the
+      <c>-optional_callbacks</c> attribute:</p>
+
+<code type="none">
+-optional_callbacks([OptName1/OptArity1, ..., OptNameK/OptArityK]).</code>
+
+    <p>where each <c>OptName/OptArity</c> specifies the name and arity
+      of a callback function. Note that the <c>-optional_callbacks</c>
+      attribute is to be used together with the <c>-callback</c>
+      attribute; it cannot be combined with the
+      <c>behaviour_info()</c> function described below.</p>
+    <p>Tools that need to know about optional callback functions can
+      call <c>Behaviour:behaviour_info(optional_callbacks)</c> to get
+      a list of all optional callback functions.</p>
+
+    <note><p>We recommend using the <c>-callback</c> attribute rather
+      than the <c>behaviour_info()</c> function. The reason is that
+      the extra type information can be used by tools to produce
+      documentation or find discrepancies.</p></note>
+
+    <p>As an alternative to the <c>-callback</c> and
+      <c>-optional_callbacks</c> attributes you may directly implement
+      and export <c>behaviour_info()</c>:</p>
+
     <code type="none">
 behaviour_info(callbacks) ->
     [{Name1, Arity1},...,{NameN, ArityN}].</code>
-    <p>where each <c>{Name, Arity}</c> specifies the name and arity of a callback
-    function. This function is otherwise automatically generated by the compiler
-    using the <c>-callback</c> attributes.</p>
+
+    <p>where each <c>{Name, Arity}</c> specifies the name and arity of
+      a callback function. This function is otherwise automatically
+      generated by the compiler using the <c>-callback</c>
+      attributes.</p>
     <p>When the compiler encounters the module attribute
-    <c>-behaviour(Behaviour).</c> in a module <c>Mod</c>, it will call
-    <c>Behaviour:behaviour_info(callbacks)</c> and compare the result with the
-    set of functions actually exported from <c>Mod</c>, and issue a warning if
-    any callback function is missing.</p>
+      <c>-behaviour(Behaviour).</c> in a module <c>Mod</c>, it
+      calls <c>Behaviour:behaviour_info(callbacks)</c> and compares the
+      result with the set of functions actually exported from
+      <c>Mod</c>, and issues a warning if any callback function is
+      missing.</p>
     <p>Example:</p>
     <code type="none">
 %% User-defined behaviour module
 -module(simple_server).
--export([start_link/2,...]).
+-export([start_link/2, init/3, ...]).
 
 -callback init(State :: term()) -> 'ok'.
 -callback handle_req(Req :: term(), State :: term()) -> {'ok', Reply :: term()}.
 -callback terminate() -> 'ok'.
+-callback format_state(State :: term()) -> term().
+
+-optional_callbacks([format_state/1]).
 
 %% Alternatively you may define:
 %%
diff --git a/system/doc/design_principles/sup_princ.xml b/system/doc/design_principles/sup_princ.xml
index 11ef3813d6..9583ca5c55 100644
--- a/system/doc/design_principles/sup_princ.xml
+++ b/system/doc/design_principles/sup_princ.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>1997</year><year>2013</year>
+      <year>1997</year><year>2014</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -28,15 +28,16 @@
     <rev></rev>
     <file>sup_princ.xml</file>
   </header>
-  <p>This section should be read in conjunction with
-    <c>supervisor(3)</c>, where all details about the supervisor
+  <p>This section should be read with the
+    <seealso marker="stdlib:supervisor">supervisor(3)</seealso> manual page
+    in STDLIB, where all details about the supervisor
     behaviour is given.</p>
 
   <section>
     <title>Supervision Principles</title>
-    <p>A supervisor is responsible for starting, stopping and
+    <p>A supervisor is responsible for starting, stopping, and
       monitoring its child processes. The basic idea of a supervisor is
-      that it should keep its child processes alive by restarting them
+      that it is to keep its child processes alive by restarting them
       when necessary.</p>
     <p>Which child processes to start and monitor is specified by a
       list of <seealso marker="#spec">child specifications</seealso>.
@@ -47,8 +48,8 @@
   <section>
     <title>Example</title>
     <p>The callback module for a supervisor starting the server from
-      the <seealso marker="gen_server_concepts#ex">gen_server chapter</seealso>
-      could look like this:</p>
+    <seealso marker="gen_server_concepts#ex">gen_server Behaviour</seealso>
+    can look as follows:</p>
     <marker id="ex"></marker>
     <code type="none">
 -module(ch_sup).
@@ -61,18 +62,60 @@ start_link() ->
     supervisor:start_link(ch_sup, []).
 
 init(_Args) ->
-    {ok, {{one_for_one, 1, 60},
-          [{ch3, {ch3, start_link, []},
-            permanent, brutal_kill, worker, [ch3]}]}}.</code>
-    <p><c>one_for_one</c> is the <seealso marker="#strategy">restart strategy</seealso>.</p>
-    <p>1 and 60 defines the <seealso marker="#frequency">maximum restart frequency</seealso>.</p>
-    <p>The tuple <c>{ch3, ...}</c> is a <seealso marker="#spec">child specification</seealso>.</p>
+    SupFlags = #{strategy => one_for_one, intensity => 1, period => 5},
+    ChildSpecs = [#{id => ch3,
+                    start => {ch3, start_link, []},
+                    restart => permanent,
+                    shutdown => brutal_kill,
+                    type => worker,
+                    modules => [cg3]}],
+    {ok, {SupFlags, ChildSpecs}}.</code>
+    <p>The <c>SupFlags</c> variable in the return value
+      from <c>init/1</c> represents
+      the <seealso marker="#flags">supervisor flags</seealso>.</p>
+    <p>The <c>ChildSpecs</c> variable in the return value
+      from <c>init/1</c> is a list of <seealso marker="#spec">child
+      specifications</seealso>.</p>
+    </section>
+
+  <section>
+    <title>Supervisor Flags</title>
+    <marker id="flags"/>
+    <p>This is the type definition for the supervisor flags:</p>
+    <code type="none"><![CDATA[
+sup_flags() = #{strategy => strategy(),         % optional
+                intensity => non_neg_integer(), % optional
+                period => pos_integer()}        % optional
+    strategy() = one_for_all
+               | one_for_one
+               | rest_for_one
+               | simple_one_for_one]]></code>
+    <list type="bulleted">
+      <item>
+	<p><c>strategy</c> specifies
+	  the <seealso marker="#strategy">restart
+	  strategy</seealso>.</p>
+      </item>
+      <item>
+	<p><c>intensity</c> and <c>period</c> specify
+	  the <seealso marker="#max_intensity">maximum restart
+	  intensity</seealso>.</p>
+      </item>
+    </list>
   </section>
 
   <section>
     <marker id="strategy"></marker>
     <title>Restart Strategy</title>
 
+    <p> The restart strategy is specified by
+      the <c>strategy</c> key in the supervisor flags map returned by
+      the callback function <c>init</c>:</p>
+    <code type="none">
+SupFlags = #{strategy => Strategy, ...}</code>
+    <p>The <c>strategy</c> key is optional in this map. If it is not
+      given, it defaults to <c>one_for_one</c>.</p>
+
     <section>
       <title>one_for_one</title>
       <p>If a child process terminates, only that process is restarted.</p>
@@ -85,7 +128,7 @@ init(_Args) ->
     <section>
       <title>one_for_all</title>
       <p>If a child process terminates, all other child processes are
-        terminated and then all child processes, including
+        terminated, and then all child processes, including
         the terminated one, are restarted.</p>
       <marker id="sup5"></marker>
       <image file="../design_principles/sup5.gif">
@@ -95,165 +138,208 @@ init(_Args) ->
 
     <section>
       <title>rest_for_one</title>
-      <p>If a child process terminates, the 'rest' of the child
-        processes -- i.e. the child processes after the terminated
-        process in start order -- are terminated. Then the terminated
+      <p>If a child process terminates, the rest of the child
+        processes (that is, the child processes after the terminated
+        process in start order) are terminated. Then the terminated
         child process and the rest of the child processes are restarted.</p>
     </section>
+
+     <section>
+      <title>simple_one_for_one</title>
+      <p>See <seealso marker="#simple">simple-one-for-one
+	  supervisors</seealso>.</p>
+    </section>
   </section>
 
   <section>
-    <marker id="frequency"></marker>
-    <title>Maximum Restart Frequency</title>
+    <marker id="max_intensity"></marker>
+    <title>Maximum Restart Intensity</title>
     <p>The supervisors have a built-in mechanism to limit the number of
       restarts which can occur in a given time interval. This is
-      determined by the values of the two parameters <c>MaxR</c> and
-      <c>MaxT</c> in the start specification returned by the callback
-      function <c>init</c>:</p>
+      specified by the two keys <c>intensity</c> and
+      <c>period</c> in the supervisor flags map returned by the
+      callback function <c>init</c>:</p>
     <code type="none">
-init(...) ->
-    {ok, {{RestartStrategy, MaxR, MaxT},
-          [ChildSpec, ...]}}.</code>
+SupFlags = #{intensity => MaxR, period => MaxT, ...}</code>
     <p>If more than <c>MaxR</c> number of restarts occur in the last
-      <c>MaxT</c> seconds, then the supervisor terminates all the child
+      <c>MaxT</c> seconds, the supervisor terminates all the child
       processes and then itself.</p>
-    <p>When the supervisor terminates, then the next higher level
+    <p>When the supervisor terminates, then the next higher-level
       supervisor takes some action. It either restarts the terminated
-      supervisor, or terminates itself.</p>
+      supervisor or terminates itself.</p>
     <p>The intention of the restart mechanism is to prevent a situation
       where a process repeatedly dies for the same reason, only to be
       restarted again.</p>
+    <p>The keys <c>intensity</c> and <c>period</c> are optional in the
+      supervisor flags map. If they are not given, they default
+      to <c>1</c> and <c>5</c>, respectively.</p>
   </section>
 
   <section>
     <marker id="spec"></marker>
     <title>Child Specification</title>
-    <p>This is the type definition for a child specification:</p>
+    <p>The type definition for a child specification is as follows:</p>
     <code type="none"><![CDATA[
-{Id, StartFunc, Restart, Shutdown, Type, Modules}
-    Id = term()
-    StartFunc = {M, F, A}
-        M = F = atom()
-        A = [term()]
-    Restart = permanent | transient | temporary
-    Shutdown = brutal_kill | integer()>0 | infinity
-    Type = worker | supervisor
-    Modules = [Module] | dynamic
-        Module = atom()]]></code>
+child_spec() = #{id => child_id(),       % mandatory
+                 start => mfargs(),      % mandatory
+                 restart => restart(),   % optional
+                 shutdown => shutdown(), % optional
+                 type => worker(),       % optional
+                 modules => modules()}   % optional
+    child_id() = term()
+    mfargs() = {M :: module(), F :: atom(), A :: [term()]}
+    modules() = [module()] | dynamic
+    restart() = permanent | transient | temporary
+    shutdown() = brutal_kill | timeout()
+    worker() = worker | supervisor]]></code>
     <list type="bulleted">
       <item>
-        <p><c>Id</c> is a name that is used to identify the child
+        <p><c>id</c> is used to identify the child
           specification internally by the supervisor.</p>
+	<p>The <c>id</c> key is mandatory.</p>
+	<p>Note that this identifier occasionally has been called
+	  "name". As far as possible, the terms "identifier" or "id"
+	  are now used but in order to keep backwards compatibility,
+	  some occurences of "name" can still be found, for example
+	  in error messages.</p>
       </item>
       <item>
-        <p><c>StartFunc</c> defines the function call used to start
+        <p><c>start</c> defines the function call used to start
           the child process. It is a module-function-arguments tuple
           used as <c>apply(M, F, A)</c>.</p>
-        <p>It should be (or result in) a call to
-          <c>supervisor:start_link</c>, <c>gen_server:start_link</c>,
-          <c>gen_fsm:start_link</c> or <c>gen_event:start_link</c>.
-          (Or a function compliant with these functions, see
-          <c>supervisor(3)</c> for details.</p>
+        <p>It is to be (or result in) a call to any of the following:</p>
+	<list type="bulleted">
+	  <item><c>supervisor:start_link</c></item>
+	  <item><c>gen_server:start_link</c></item>
+	  <item><c>gen_fsm:start_link</c></item>
+	  <item><c>gen_event:start_link</c></item>
+	  <item>A function compliant with these functions. For details,
+	  see the <c>supervisor(3)</c> manual page.</item>
+	</list>
+	<p>The <c>start</c> key is mandatory.</p>
       </item>
       <item>
-        <p><c>Restart</c> defines when a terminated child process should
+        <p><c>restart</c> defines when a terminated child process is to
           be restarted.</p>
         <list type="bulleted">
           <item>A <c>permanent</c> child process is always restarted.</item>
           <item>A <c>temporary</c> child process is never restarted
-          (not even when the supervisor's restart strategy
-          is <c>rest_for_one</c> or <c>one_for_all</c> and a sibling's
+          (not even when the supervisor restart strategy
+          is <c>rest_for_one</c> or <c>one_for_all</c> and a sibling
           death causes the temporary process to be terminated).</item>
           <item>A <c>transient</c> child process is restarted only if it
-           terminates abnormally, i.e. with another exit reason than
-          <c>normal</c>, <c>shutdown</c> or <c>{shutdown,Term}</c>.</item>
+	  terminates abnormally, that is, with another exit reason than
+          <c>normal</c>, <c>shutdown</c>, or <c>{shutdown,Term}</c>.</item>
         </list>
+	<p>The <c>restart</c> key is optional. If it is not given, the
+	  default value <c>permanent</c> will be used.</p>
       </item>
       <item>
         <marker id="shutdown"></marker>
-        <p><c>Shutdown</c> defines how a child process should be
+        <p><c>shutdown</c> defines how a child process is to be
           terminated.</p>
         <list type="bulleted">
-          <item><c>brutal_kill</c> means the child process is
+          <item><c>brutal_kill</c> means that the child process is
            unconditionally terminated using <c>exit(Child, kill)</c>.</item>
-          <item>An integer timeout value means that the supervisor tells
+          <item>An integer time-out value means that the supervisor tells
            the child process to terminate by calling
           <c>exit(Child, shutdown)</c> and then waits for an exit
            signal back. If no exit signal is received within
            the specified time, the child process is unconditionally
            terminated using <c>exit(Child, kill)</c>.</item>
-          <item>If the child process is another supervisor, it should be
+          <item>If the child process is another supervisor, it is to be
            set to <c>infinity</c> to give the subtree enough time to
-           shutdown. It is also allowed to set it to <c>infinity</c>, if the
-           child process is a worker.</item>
+           shut down. It is also allowed to set it to <c>infinity</c>,
+          if the child process is a worker. See the warning below:</item>
         </list>
         <warning>
-          <p>Be careful by setting the <c>Shutdown</c> strategy to
+          <p>Be careful when setting the shutdown time to
           <c>infinity</c> when the child process is a worker. Because, in this
           situation, the termination of the supervision tree depends on the
-          child process, it must be implemented in a safe way and its cleanup
+          child process; it must be implemented in a safe way and its cleanup
           procedure must always return.</p>
         </warning>
+	<p>The <c>shutdown</c> key is optional. If it is not given,
+	  and the child is of type <c>worker</c>, the default value
+	  <c>5000</c> will be used; if the child is of type
+	  <c>supervisor</c>, the default value <c>infinity</c> will be
+	  used.</p>
       </item>
       <item>
-        <p><c>Type</c> specifies if the child process is a supervisor or
+        <p><c>type</c> specifies if the child process is a supervisor or
           a worker.</p>
+	<p>The <c>type</c> key is optional. If it is not given, the
+	  default value <c>worker</c> will be used.</p>
       </item>
       <item>
-        <p><c>Modules</c> should be a list with one element
+        <p><c>modules</c> are to be a list with one element
           <c>[Module]</c>, where <c>Module</c> is the name of
           the callback module, if the child process is a supervisor,
           gen_server or gen_fsm. If the child process is a gen_event,
-          <c>Modules</c> should be <c>dynamic</c>.</p>
+          the value shall be <c>dynamic</c>.</p>
         <p>This information is used by the release handler during
           upgrades and downgrades, see
           <seealso marker="release_handling">Release Handling</seealso>.</p>
+	<p>The <c>modules</c> key is optional. If it is not given, it
+	  defaults to <c>[M]</c>, where <c>M</c> comes from the
+	  child's start <c>{M,F,A}</c>.</p>
       </item>
     </list>
-    <p>Example: The child specification to start the server <c>ch3</c>
-      in the example above looks like:</p>
+    <p><em>Example:</em> The child specification to start the server
+    <c>ch3</c> in the previous example look as follows:</p>
+    <code type="none">
+#{id => ch3,
+  start => {ch3, start_link, []},
+  restart => permanent,
+  shutdown => brutal_kill,
+  type => worker,
+  modules => [ch3]}</code>
+    <p>or simplified, relying on the default values:</p>
     <code type="none">
-{ch3,
- {ch3, start_link, []},
- permanent, brutal_kill, worker, [ch3]}</code>
+#{id => ch3,
+  start => {ch3, start_link, []}
+  shutdown => brutal_kill}</code>
     <p>Example: A child specification to start the event manager from
       the chapter about
       <seealso marker="events#mgr">gen_event</seealso>:</p>
     <code type="none">
-{error_man,
- {gen_event, start_link, [{local, error_man}]},
- permanent, 5000, worker, dynamic}</code>
-    <p>Both the server and event manager are registered processes which
-      can be expected to be accessible at all times, thus they are
+#{id => error_man,
+  start => {gen_event, start_link, [{local, error_man}]},
+  modules => dynamic}</code>
+    <p>Both server and event manager are registered processes which
+      can be expected to be always accessible. Thus they are
       specified to be <c>permanent</c>.</p>
     <p><c>ch3</c> does not need to do any cleaning up before
-      termination, thus no shutdown time is needed but
-      <c>brutal_kill</c> should be sufficient. <c>error_man</c> may
+      termination. Thus, no shutdown time is needed, but
+      <c>brutal_kill</c> is sufficient. <c>error_man</c> can
       need some time for the event handlers to clean up, thus
-      <c>Shutdown</c> is set to 5000 ms.</p>
+      the shutdown time is set to 5000 ms (which is the default
+      value).</p>
     <p>Example: A child specification to start another supervisor:</p>
     <code type="none">
-{sup,
- {sup, start_link, []},
- transient, infinity, supervisor, [sup]}</code>
+#{id => sup,
+  start => {sup, start_link, []},
+  restart => transient,
+  type => supervisor} % will cause default shutdown=>infinity</code>
   </section>
 
   <section>
     <marker id="super_tree"></marker>
     <title>Starting a Supervisor</title>
-    <p>In the example above, the supervisor is started by calling
+    <p>In the previous example, the supervisor is started by calling
       <c>ch_sup:start_link()</c>:</p>
     <code type="none">
 start_link() ->
     supervisor:start_link(ch_sup, []).</code>
-    <p><c>ch_sup:start_link</c> calls the function
-      <c>supervisor:start_link/2</c>. This function spawns and links to
-      a new process, a supervisor.</p>
+    <p><c>ch_sup:start_link</c> calls function
+    <c>supervisor:start_link/2</c>, which spawns and links to a new
+    process, a supervisor.</p>
     <list type="bulleted">
       <item>The first argument, <c>ch_sup</c>, is the name of
-       the callback module, that is the module where the <c>init</c>
+       the callback module, that is, the module where the <c>init</c>
        callback function is located.</item>
-      <item>The second argument, [], is a term which is passed as-is to
+      <item>The second argument, <c>[]</c>, is a term that is passed
+       as is to
        the callback function <c>init</c>. Here, <c>init</c> does not
        need any indata and ignores the argument.</item>
     </list>
@@ -262,34 +348,37 @@ start_link() ->
       <c>supervisor:start_link({local, Name}, Module, Args)</c> or
       <c>supervisor:start_link({global, Name}, Module, Args)</c>.</p>
     <p>The new supervisor process calls the callback function
-      <c>ch_sup:init([])</c>. <c>init</c> is expected to return
-      <c>{ok, StartSpec}</c>:</p>
+      <c>ch_sup:init([])</c>. <c>init</c> shall return
+      <c>{ok, {SupFlags, ChildSpecs}}</c>:</p>
     <code type="none">
 init(_Args) ->
-    {ok, {{one_for_one, 1, 60},
-          [{ch3, {ch3, start_link, []},
-            permanent, brutal_kill, worker, [ch3]}]}}.</code>
+    SupFlags = #{},
+    ChildSpecs = [#{id => ch3,
+                    start => {ch3, start_link, []},
+                    shutdown => brutal_kill}],
+    {ok, {SupFlags, ChildSpecs}}.</code>
     <p>The supervisor then starts all its child processes according to
       the child specifications in the start specification. In this case
       there is one child process, <c>ch3</c>.</p>
-    <p>Note that <c>supervisor:start_link</c> is synchronous. It does
+    <p><c>supervisor:start_link</c> is synchronous. It does
       not return until all child processes have been started.</p>
   </section>
 
   <section>
     <title>Adding a Child Process</title>
-    <p>In addition to the static supervision tree, we can also add
-      dynamic child processes to an existing supervisor with
-      the following call:</p>
+    <p>In addition to the static supervision tree, dynamic child
+    processes can be added to an existing supervisor with the following
+    call:</p>
     <code type="none">
 supervisor:start_child(Sup, ChildSpec)</code>
     <p><c>Sup</c> is the pid, or name, of the supervisor.
-      <c>ChildSpec</c> is a <seealso marker="#spec">child specification</seealso>.</p>
+    <c>ChildSpec</c> is a
+    <seealso marker="#spec">child specification</seealso>.</p>
     <p>Child processes added using <c>start_child/2</c> behave in
-      the same manner as the other child processes, with the following
-      important exception: If a supervisor dies and is re-created, then
-      all child processes which were dynamically added to the supervisor
-      will be lost.</p>
+      the same way as the other child processes, with the an important
+      exception: if a supervisor dies and is recreated, then
+      all child processes that were dynamically added to the supervisor
+      are lost.</p>
   </section>
 
   <section>
@@ -303,18 +392,21 @@ supervisor:terminate_child(Sup, Id)</code>
     <code type="none">
 supervisor:delete_child(Sup, Id)</code>
     <p><c>Sup</c> is the pid, or name, of the supervisor.
-      <c>Id</c> is the id specified in the <seealso marker="#spec">child specification</seealso>.</p>
+      <c>Id</c> is the value associated with the <c>id</c> key in
+      the <seealso marker="#spec">child specification</seealso>.</p>
     <p>As with dynamically added child processes, the effects of
       deleting a static child process is lost if the supervisor itself
       restarts.</p>
   </section>
 
+  <marker id="simple"/>
   <section>
-    <title>Simple-One-For-One Supervisors</title>
+    <title>Simplified one_for_one Supervisors</title>
     <p>A supervisor with restart strategy <c>simple_one_for_one</c> is
-      a simplified one_for_one supervisor, where all child processes are
-      dynamically added instances of the same process.</p>
-    <p>Example of a callback module for a simple_one_for_one supervisor:</p>
+      a simplified <c>one_for_one</c> supervisor, where all child
+      processes are dynamically added instances of the same process.</p>
+    <p>The following is an example of a callback module for a
+    <c>simple_one_for_one</c> supervisor:</p>
     <code type="none">
 -module(simple_sup).
 -behaviour(supervisor).
@@ -326,45 +418,49 @@ start_link() ->
     supervisor:start_link(simple_sup, []).
 
 init(_Args) ->
-    {ok, {{simple_one_for_one, 0, 1},
-          [{call, {call, start_link, []},
-            temporary, brutal_kill, worker, [call]}]}}.</code>
-    <p>When started, the supervisor will not start any child processes.
+    SupFlags = #{strategy => simple_one_for_one,
+                 intensity => 0,
+                 period => 1},
+    ChildSpecs = [#{id => call,
+                    start => {call, start_link, []},
+                    shutdown => brutal_kill}],
+    {ok, {SupFlags, ChildSpecs}}.</code>
+    <p>When started, the supervisor does not start any child processes.
       Instead, all child processes are added dynamically by calling:</p>
     <code type="none">
 supervisor:start_child(Sup, List)</code>
     <p><c>Sup</c> is the pid, or name, of the supervisor.
-      <c>List</c> is an arbitrary list of terms which will be added to
+      <c>List</c> is an arbitrary list of terms, which are added to
       the list of arguments specified in the child specification. If
-      the start function is specified as <c>{M, F, A}</c>, then
+      the start function is specified as <c>{M, F, A}</c>,
       the child process is started by calling
       <c>apply(M, F, A++List)</c>.</p>
     <p>For example, adding a child to <c>simple_sup</c> above:</p>
     <code type="none">
 supervisor:start_child(Pid, [id1])</code>
-    <p>results in the child process being started by calling
+    <p>The result is that the child process is started by calling
       <c>apply(call, start_link, []++[id1])</c>, or actually:</p>
     <code type="none">
 call:start_link(id1)</code>
-    <p>A child under a <c>simple_one_for_one</c> supervisor can be terminated
-    with</p>
+    <p>A child under a <c>simple_one_for_one</c> supervisor can be
+    terminated with the following:</p>
     <code type="none">
 supervisor:terminate_child(Sup, Pid)</code>
-    <p>where <c>Sup</c> is the pid, or name, of the supervisor and
+    <p><c>Sup</c> is the pid, or name, of the supervisor and
     <c>Pid</c> is the pid of the child.</p>
-    <p>Because a <c>simple_one_for_one</c> supervisor could have many children,
-    it shuts them all down at same time. So, order in which they are stopped is
-    not defined. For the same reason, it could have an overhead with regards to
-    the <c>Shutdown</c> strategy.</p>
+    <p>Because a <c>simple_one_for_one</c> supervisor can have many
+      children, it shuts them all down asynchronously. This means that
+      the children will do their cleanup in parallel and therefore the
+      order in which they are stopped is not defined.</p>
   </section>
 
   <section>
     <title>Stopping</title>
-    <p>Since the supervisor is part of a supervision tree, it will
-      automatically be terminated by its supervisor. When asked to
-      shutdown, it will terminate all child processes in reversed start
+    <p>Since the supervisor is part of a supervision tree, it is
+      automatically terminated by its supervisor. When asked to
+      shut down, it terminates all child processes in reversed start
       order according to the respective shutdown specifications, and
-      then terminate itself.</p>
+      then terminates itself.</p>
   </section>
 </chapter>
 
diff --git a/system/doc/efficiency_guide/advanced.xml b/system/doc/efficiency_guide/advanced.xml
index 51f1b2612c..df2ab0f811 100644
--- a/system/doc/efficiency_guide/advanced.xml
+++ b/system/doc/efficiency_guide/advanced.xml
@@ -18,7 +18,6 @@
       basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
       the License for the specific language governing rights and limitations
       under the License.
-
     </legalnotice>
 
     <title>Advanced</title>
@@ -31,175 +30,245 @@
 
   <section>
     <title>Memory</title>
-    <p>A good start when programming efficiently is to have knowledge about
+    <p>A good start when programming efficiently is to know
       how much memory different data types and operations require. It is
       implementation-dependent how much memory the Erlang data types and
-      other items consume, but here are some figures for the
-      erts-5.2 system (OTP release R9B). (There have been no significant
-      changes in R13.)</p>
+      other items consume, but the following table shows some figures for
+      the <c>erts-5.2</c> system in R9B. There have been no significant
+      changes in R13.</p>
 
-      <p>The unit of measurement is memory words. There exists both a 32-bit
-      and a 64-bit implementation, and a word is therefore, 4 bytes or
+      <p>The unit of measurement is memory words. There exists both a
+      32-bit and a 64-bit implementation. A word is therefore 4 bytes or
       8 bytes, respectively.</p>
     <table>
       <row>
-        <cell align="center" valign="middle">Data type</cell>
-        <cell align="center" valign="middle">Memory size</cell>
+        <cell><em>Data Type</em></cell>
+        <cell><em>Memory Size</em></cell>
       </row>
       <row>
-        <cell align="left" valign="middle">Small integer</cell>
-        <cell align="left" valign="middle">1 word<br></br>
-On 32-bit architectures: -134217729 &lt; i &lt; 134217728 (28 bits)<br></br>
-On 64-bit architectures: -576460752303423489 &lt; i &lt; 576460752303423488 (60 bits)</cell>
+        <cell>Small integer</cell>
+        <cell>1 word.<br></br>
+	On 32-bit architectures: -134217729 &lt; i &lt; 134217728
+	(28 bits).<br></br>
+	On 64-bit architectures: -576460752303423489 &lt; i &lt;
+	576460752303423488 (60 bits).</cell>
       </row>
       <row>
-        <cell align="left" valign="middle">Big integer</cell>
-        <cell align="left" valign="middle">3..N words</cell>
+        <cell>Large integer</cell>
+        <cell>3..N words.</cell>
       </row>
       <row>
-        <cell align="left" valign="middle">Atom</cell>
-        <cell align="left" valign="middle">1 word. Note: an atom refers into
-	an atom table which also consumes memory.
+        <cell>Atom</cell>
+        <cell>1 word.<br></br>
+	An atom refers into an atom table, which also consumes memory.
 	The atom text is stored once for each unique atom in this table.
 	The atom table is <em>not</em> garbage-collected.</cell>
       </row>
       <row>
-        <cell align="left" valign="middle">Float</cell>
-        <cell align="left" valign="middle">On 32-bit architectures: 4 words        <br></br>
-On 64-bit architectures: 3 words</cell>
+        <cell>Float</cell>
+        <cell>On 32-bit architectures: 4 words.<br></br>
+	On 64-bit architectures: 3 words.</cell>
       </row>
       <row>
-        <cell align="left" valign="middle">Binary</cell>
-        <cell align="left" valign="middle">3..6 + data (can be shared)</cell>
+        <cell>Binary</cell>
+        <cell>3..6 words + data (can be shared).</cell>
       </row>
       <row>
-        <cell align="left" valign="middle">List</cell>
-        <cell align="left" valign="middle">1 word + 1 word per element + the size of each element</cell>
+        <cell>List</cell>
+        <cell>1 word + 1 word per element + the size of each element.</cell>
       </row>
       <row>
-        <cell align="left" valign="middle">String (is the same as a list of integers)</cell>
-        <cell align="left" valign="middle">1 word + 2 words per character</cell>
+        <cell>String (is the same as a list of integers)</cell>
+        <cell>1 word + 2 words per character.</cell>
       </row>
       <row>
-        <cell align="left" valign="middle">Tuple</cell>
-        <cell align="left" valign="middle">2 words + the size of each element</cell>
+        <cell>Tuple</cell>
+        <cell>2 words + the size of each element.</cell>
       </row>
       <row>
-        <cell align="left" valign="middle">Pid</cell>
-        <cell align="left" valign="middle">1 word for a process identifier from the current local node, and 5 words for a process identifier from another node. Note: a process identifier refers into a process table and a node table which also consumes memory.</cell>
+        <cell>Pid</cell>
+        <cell>1 word for a process identifier from the current local node
+	+ 5 words for a process identifier from another node.<br></br>
+	A process identifier refers into a process table and a node table,
+	which also consumes memory.</cell>
       </row>
       <row>
-        <cell align="left" valign="middle">Port</cell>
-        <cell align="left" valign="middle">1 word for a port identifier from the current local node, and 5 words for a port identifier from another node. Note: a port identifier refers into a port table and a node table which also consumes memory.</cell>
+        <cell>Port</cell>
+        <cell>1 word for a port identifier from the current local node
+	+ 5 words for a port identifier from another node.<br></br>
+	A port identifier refers into a port table and a node table,
+	which also consumes memory.</cell>
       </row>
       <row>
-        <cell align="left" valign="middle">Reference</cell>
-        <cell align="left" valign="middle">On 32-bit architectures: 5 words for a reference from the current local node, and 7 words for a reference from another node.        <br></br>
-On 64-bit architectures: 4 words for a reference from the current local node, and 6 words for a reference from another node. Note: a reference refers into a node table which also consumes memory.</cell>
+        <cell>Reference</cell>
+        <cell>On 32-bit architectures: 5 words for a reference from the
+	current local node + 7 words for a reference from another
+	node.<br></br>
+	On 64-bit architectures: 4 words for a reference from the current
+	local node + 6 words for a reference from another node.<br></br>
+	A reference refers into a node table, which also consumes
+	memory.</cell>
       </row>
       <row>
-        <cell align="left" valign="middle">Fun</cell>
-        <cell align="left" valign="middle">9..13 words + size of environment. Note: a fun refers into a fun table which also consumes memory.</cell>
+        <cell>Fun</cell>
+        <cell>9..13 words + the size of environment.<br></br>
+	A fun refers into a fun table, which also consumes memory.</cell>
       </row>
       <row>
-        <cell align="left" valign="middle">Ets table</cell>
-        <cell align="left" valign="middle">Initially 768 words + the size of each element (6 words + size of Erlang data). The table will grow when necessary.</cell>
+        <cell>Ets table</cell>
+        <cell>Initially 768 words + the size of each element (6 words +
+	the size of Erlang data). The table grows when necessary.</cell>
       </row>
       <row>
-        <cell align="left" valign="middle">Erlang process</cell>
-        <cell align="left" valign="middle">327 words when spawned including a heap of 233 words.</cell>
+        <cell>Erlang process</cell>
+        <cell>327 words when spawned, including a heap of 233 words.</cell>
       </row>
-      <tcaption>Memory size of different data types</tcaption>
+      <tcaption>Memory Size of Different Data Types</tcaption>
     </table>
   </section>
 
   <section>
-    <title>System limits</title>
-    <p>The Erlang language specification puts no limits on number of processes,
-     length of atoms etc., but for performance and memory saving reasons,
-      there will always be limits in a practical implementation of the Erlang
-      language and execution environment.</p>
-    <taglist>
-      <tag><em>Processes</em></tag>
-      <item>
-        <p>The maximum number of simultaneously alive Erlang processes is
-          by default 32768. This limit can be configured at startup,
-	  for more information see the
-	  <seealso marker="erts:erl#max_processes"><c>+P</c></seealso>
-	  command line flag of
-	  <seealso marker="erts:erl"><c>erl(1)</c></seealso>.</p>
-      </item>
-      <tag><em>Distributed nodes</em></tag>
-      <item>
-        <taglist>
-          <tag>Known nodes</tag>
-          <item>
-            <p>A remote node Y has to be known to node X if there exist
-              any pids, ports, references, or funs (Erlang data types) from Y
-              on X, or if X and Y are connected. The maximum number of remote
-              nodes simultaneously/ever known to a node is limited by the
-              <seealso marker="#atoms">maximum number of atoms</seealso>
-              available for node names. All data concerning remote nodes,
-              except for the node name atom, are garbage-collected.</p>
-          </item>
-          <tag>Connected nodes</tag>
-          <item>The maximum number of simultaneously connected nodes is limited by
-           either the maximum number of simultaneously known remote nodes,
-          <seealso marker="#ports">the maximum number of (Erlang) ports</seealso>
-           available, or
-          <seealso marker="#files_sockets">the maximum number of sockets</seealso>
-           available.</item>
-        </taglist>
-      </item>
-      <tag><em>Characters in an atom</em></tag>
-      <item>255</item>
-      <tag><em>Atoms </em></tag>
-      <item>      <marker id="atoms"></marker>
-	By default, the maximum number of atoms is 1048576.
-	This limit can be raised or lowered using the <c>+t</c> option.</item>
-      <tag><em>Ets-tables</em></tag>
-      <item>The default is 1400, can be changed with the environment variable <c>ERL_MAX_ETS_TABLES</c>.</item>
-      <tag><em>Elements in a tuple</em></tag>
-      <item>The maximum number of elements in a tuple is 67108863 (26 bit unsigned integer). Other factors
-       such as the available memory can of course make it hard to create a tuple of that size. </item>
-      <tag><em>Size of binary</em></tag>
-      <item>In the 32-bit implementation of Erlang, 536870911 bytes is the
-       largest binary that can be constructed or matched using the bit syntax.
-       (In the 64-bit implementation, the maximum size is 2305843009213693951 bytes.)
-       If the limit is exceeded, bit syntax construction will fail with a
-      <c>system_limit</c> exception, while any attempt to match a binary that is
-       too large will fail.
-       This limit is enforced starting with the R11B-4 release; in earlier releases,
-       operations on too large binaries would in general either fail or give incorrect
-       results.
-       In future releases of Erlang/OTP, other operations that create binaries (such as
-      <c>list_to_binary/1</c>) will probably also enforce the same limit.</item>
-      <tag><em>Total amount of data allocated by an Erlang node</em></tag>
-      <item>The Erlang runtime system can use the complete 32 (or 64) bit address space,
-       but the operating system often limits a single process to use less than that.</item>
-      <tag><em>Length of a node name</em></tag>
-      <item>An Erlang node name has the form host@shortname or host@longname. The node name is 
-       used as an atom within the system so the maximum size of 255 holds for the node name too.</item>
-      <tag><em>Open ports</em></tag>
-      <item>
-        <marker id="ports"></marker>
-	  <p>The maximum number of simultaneously open Erlang ports is
-	  often by default 16384. This limit can be configured at startup,
-	  for more information see the
-	  <seealso marker="erts:erl#max_ports"><c>+Q</c></seealso>
-	  command line flag of
-	  <seealso marker="erts:erl"><c>erl(1)</c></seealso>.</p>
-      </item>
-      <tag><em>Open files, and sockets</em></tag>
-      <item>      <marker id="files_sockets"></marker>
+    <title>System Limits</title>
+    <p>The Erlang language specification puts no limits on the number of
+    processes, length of atoms, and so on. However, for performance and
+    memory saving reasons, there will always be limits in a practical
+    implementation of the Erlang language and execution environment.</p>
 
-       The maximum number of simultaneously open files and sockets
-       depend on
-      <seealso marker="#ports">the maximum number of Erlang ports</seealso>
-       available, and operating system specific settings and limits.</item>
-      <tag><em>Number of arguments to a function or fun</em></tag>
-      <item>255</item>
-    </taglist>
+    <table>
+      <row>
+        <cell>Processes</cell>
+        <cell>The maximum number of simultaneously alive Erlang processes
+	is by default 32,768. This limit can be configured at startup.
+	For more information, see the
+	<seealso marker="erts:erl#max_processes"><c>+P</c></seealso>
+	command-line flag in the
+	<seealso marker="erts:erl"><c>erl(1)</c></seealso>
+	manual page in <c>erts</c>.</cell>
+      </row>
+      <row>
+	<cell>Known nodes</cell>
+	<cell>A remote node Y must be known to node X if there exists
+	any pids, ports, references, or funs (Erlang data types) from Y
+	on X, or if X and Y are connected. The maximum number of remote
+	nodes simultaneously/ever known to a node is limited by the
+	<seealso marker="#atoms">maximum number of atoms</seealso>
+	available for node names. All data concerning remote nodes,
+	except for the node name atom, are garbage-collected.</cell>
+      </row>
+      <row>
+	<cell>Connected nodes</cell>
+	<cell>The maximum number of simultaneously connected nodes is
+	limited by either the maximum number of simultaneously known
+	remote nodes,
+	<seealso marker="#ports">the maximum number of (Erlang) ports</seealso>
+	available, or
+	<seealso marker="#files_sockets">the maximum number of sockets</seealso>
+	available.</cell>
+      </row>
+      <row>
+	<cell>Characters in an atom</cell>
+	<cell>255.</cell>
+      </row>
+      <row>
+	<cell><marker id="atoms"></marker>Atoms</cell>
+	<cell>By default, the maximum number of atoms is 1,048,576. This
+	limit can be raised or lowered using the <c>+t</c> option.</cell>
+      </row>
+      <row>
+	<cell>Ets tables</cell>
+	<cell>Default is 1400. It can be changed with the environment
+	variable <c>ERL_MAX_ETS_TABLES</c>.</cell>
+      </row>
+      <row>
+	<cell>Elements in a tuple</cell>
+	<cell>The maximum number of elements in a tuple is 67,108,863
+	(26-bit unsigned integer). Clearly, other factors such as the
+	available memory can make it difficult to create a tuple of
+	that size.</cell>
+      </row>
+      <row>
+	<cell>Size of binary</cell>
+	<cell>In the 32-bit implementation of Erlang, 536,870,911
+	bytes is the largest binary that can be constructed or matched
+	using the bit syntax. In the 64-bit implementation, the maximum
+	size is 2,305,843,009,213,693,951 bytes. If the limit is
+	exceeded, bit syntax construction fails with a
+	<c>system_limit</c> exception, while any attempt to match a
+	binary that is too large fails. This limit is enforced starting
+	in R11B-4.<br></br>
+	In earlier Erlang/OTP releases, operations on too large
+	binaries in general either fail or give incorrect results. In
+	future releases, other operations that create binaries (such as
+	<c>list_to_binary/1</c>) will probably also enforce the same
+	limit.</cell>
+      </row>
+      <row>
+	<cell>Total amount of data allocated by an Erlang node</cell>
+	<cell>The Erlang runtime system can use the complete 32-bit
+	(or 64-bit) address space, but the operating system often
+	limits a single process to use less than that.</cell>
+      </row>
+      <row>
+	<cell>Length of a node name</cell>
+	<cell>An Erlang node name has the form host@shortname or
+	host@longname. The node name is  used as an atom within
+	the system, so the maximum size of 255 holds also for the
+	node name.</cell>
+      </row>
+      <row>
+	<cell><marker id="ports"></marker>Open ports</cell>
+	<cell>The maximum number of simultaneously open Erlang ports is
+	often by default 16,384. This limit can be configured at startup.
+	For more information, see the
+	<seealso marker="erts:erl#max_ports"><c>+Q</c></seealso>
+	command-line flag in the
+	<seealso marker="erts:erl"><c>erl(1)</c></seealso> manual page
+	in <c>erts</c>.</cell>
+      </row>
+      <row>
+	<cell><marker id="files_sockets"></marker>Open files and
+	sockets</cell>
+	<cell>The maximum number of simultaneously open files and
+	sockets depends on
+	<seealso marker="#ports">the maximum number of Erlang ports</seealso>
+	available, as well as on operating system-specific settings
+	and limits.</cell>
+      </row>
+      <row>
+	<cell>Number of arguments to a function or fun</cell>
+	<cell>255</cell>
+      </row>
+      <row>
+        <cell><marker id="unique_references"/>Unique References on a Runtime System Instance</cell>
+        <cell>Each scheduler thread has its own set of references, and all
+        other threads have a shared set of references. Each set of references
+        consist of <c>2⁶⁴ - 1</c> unique references. That is the total
+        amount of unique references that can be produced on a runtime
+        system instance is <c>(NoSchedulers + 1) * (2⁶⁴ - 1)</c>. If a
+        scheduler thread create a new reference each nano second,
+        references will at earliest be reused after more than 584 years.
+	That is, for the foreseeable future they are unique enough.</cell>
+      </row>
+      <row>
+        <cell><marker id="unique_integers"/>Unique Integers on a Runtime System Instance</cell>
+        <cell>There are two types of unique integers both created using the
+        <seealso marker="erts:erlang#unique_integer/1">erlang:unique_integer()</seealso>
+        BIF. Unique integers created:
+         <taglist>
+	  <tag>with the <c>monotonic</c> modifier</tag>
+	  <item>consist of a set of <c>2⁶⁴ - 1</c> unique integers.</item>
+	  <tag>without the <c>monotonic</c> modifier</tag>
+	  <item>consist of a set of <c>2⁶⁴ - 1</c> unique integers per scheduler
+	  thread and a set of <c>2⁶⁴ - 1</c> unique integers shared by
+	  other threads. That is the total amount of unique integers without
+	  the <c>monotonic</c> modifier is <c>(NoSchedulers + 1) * (2⁶⁴ - 1)</c></item>
+        </taglist>
+      If a unique integer is created each nano second, unique integers
+      will at earliest be reused after more than 584 years. That is, for
+	the foreseeable future they are unique enough.</cell>
+      </row>	
+      <tcaption>System Limits</tcaption>
+    </table>
   </section>
 </chapter>
 
diff --git a/system/doc/efficiency_guide/binaryhandling.xml b/system/doc/efficiency_guide/binaryhandling.xml
index 4ba1378059..1d247bcdd5 100644
--- a/system/doc/efficiency_guide/binaryhandling.xml
+++ b/system/doc/efficiency_guide/binaryhandling.xml
@@ -23,7 +23,7 @@
   The Initial Developer of the Original Code is Ericsson AB.
     </legalnotice>
 
-    <title>Constructing and matching binaries</title>
+    <title>Constructing and Matching Binaries</title>
     <prepared>Bjorn Gustavsson</prepared>
     <docno></docno>
     <date>2007-10-12</date>
@@ -31,10 +31,10 @@
     <file>binaryhandling.xml</file>
   </header>
 
-  <p>In R12B, the most natural way to write binary construction and matching is now
+  <p>In R12B, the most natural way to construct and match binaries is
   significantly faster than in earlier releases.</p>
 
-  <p>To construct at binary, you can simply write</p>
+  <p>To construct a binary, you can simply write as follows:</p>
 
   <p><em>DO</em> (in R12B) / <em>REALLY DO NOT</em> (in earlier releases)</p>
   <code type="erl"><![CDATA[
@@ -46,13 +46,12 @@ my_list_to_binary([H|T], Acc) ->
 my_list_to_binary([], Acc) ->
     Acc.]]></code>  
 
-  <p>In releases before R12B, <c>Acc</c> would be copied in every iteration.
-  In R12B, <c>Acc</c> will be copied only in the first iteration and extra
-  space will be allocated at the end of the copied binary. In the next iteration,
-  <c>H</c> will be written in to the extra space. When the extra space runs out,
-  the binary will be reallocated with more extra space.</p>
-
-  <p>The extra space allocated (or reallocated) will be twice the size of the
+  <p>In releases before R12B, <c>Acc</c> is copied in every iteration.
+  In R12B, <c>Acc</c> is copied only in the first iteration and extra
+  space is allocated at the end of the copied binary. In the next iteration,
+  <c>H</c> is written into the extra space. When the extra space runs out,
+  the binary is reallocated with more extra space. The extra space allocated
+  (or reallocated) is twice the size of the
   existing binary data, or 256, whichever is larger.</p>
 
   <p>The most natural way to match binaries is now the fastest:</p>
@@ -64,55 +63,79 @@ my_binary_to_list(<<H,T/binary>>) ->
 my_binary_to_list(<<>>) -> [].]]></code>  
 
   <section>
-    <title>How binaries are implemented</title>
+    <title>How Binaries are Implemented</title>
 
     <p>Internally, binaries and bitstrings are implemented in the same way.
-    In this section, we will call them <em>binaries</em> since that is what
+    In this section, they are called <em>binaries</em> because that is what
     they are called in the emulator source code.</p>
 
-    <p>There are four types of binary objects internally. Two of them are
-    containers for binary data and two of them are merely references to
-    a part of a binary.</p>
-
-    <p>The binary containers are called <em>refc binaries</em>
-    (short for <em>reference-counted binaries</em>) and <em>heap binaries</em>.</p>
+    <p>Four types of binary objects are available internally:</p>
+    <list type="bulleted">
+      <item><p>Two are containers for binary data and are called:</p>
+      <list type="bulleted">
+	<item><em>Refc binaries</em> (short for
+	<em>reference-counted binaries</em>)</item>
+	<item><em>Heap binaries</em></item>
+      </list></item>
+      <item><p>Two are merely references to a part of a binary and
+      are called:</p>
+      <list type="bulleted">
+	<item><em>sub binaries</em></item>
+	<item><em>match contexts</em></item>
+      </list></item>
+    </list>
 
-    <p><marker id="refc_binary"></marker><em>Refc binaries</em>
-    consist of two parts: an object stored on
-    the process heap, called a <em>ProcBin</em>, and the binary object itself
-    stored outside all process heaps.</p>
+    <section>
+      <marker id="refc_binary"></marker>
+      <title>Refc Binaries</title>
+      <p>Refc binaries consist of two parts:</p>
+      <list type="bulleted">
+	<item>An object stored on the process heap, called a
+	<em>ProcBin</em></item>
+	<item>The binary object itself, stored outside all process
+	heaps</item>
+      </list>
 
     <p>The binary object can be referenced by any number of ProcBins from any
-    number of processes; the object contains a reference counter to keep track
+    number of processes. The object contains a reference counter to keep track
     of the number of references, so that it can be removed when the last
     reference disappears.</p>
 
     <p>All ProcBin objects in a process are part of a linked list, so that
     the garbage collector can keep track of them and decrement the reference
     counters in the binary when a ProcBin disappears.</p>
+    </section>
 
-    <p><marker id="heap_binary"></marker><em>Heap binaries</em> are small binaries,
-    up to 64 bytes, that are stored directly on the process heap.
-    They will be copied when the process
-    is garbage collected and when they are sent as a message. They don't
+    <section>
+      <marker id="heap_binary"></marker>
+      <title>Heap Binaries</title>
+    <p>Heap binaries are small binaries, up to 64 bytes, and are stored
+    directly on the process heap. They are copied when the process is
+    garbage-collected and when they are sent as a message. They do not
     require any special handling by the garbage collector.</p>
+    </section>
 
-    <p>There are two types of reference objects that can reference part of
-    a refc binary or heap binary. They are called <em>sub binaries</em> and
-    <em>match contexts</em>.</p>
+    <section>
+      <title>Sub Binaries</title>
+    <p>The reference objects <em>sub binaries</em> and
+    <em>match contexts</em> can reference part of
+    a refc binary or heap binary.</p>
 
     <p><marker id="sub_binary"></marker>A <em>sub binary</em>
     is created by <c>split_binary/2</c> and when
     a binary is matched out in a binary pattern. A sub binary is a reference
-    into a part of another binary (refc or heap binary, never into a another
+    into a part of another binary (refc or heap binary, but never into another
     sub binary). Therefore, matching out a binary is relatively cheap because
     the actual binary data is never copied.</p>
+    </section>
 
-    <p><marker id="match_context"></marker>A <em>match context</em> is
-    similar to a sub binary, but is optimized
-    for binary matching; for instance, it contains a direct pointer to the binary
-    data. For each field that is matched out of a binary, the position in the
-    match context will be incremented.</p>
+    <section>
+      <title>Match Context</title>
+      <marker id="match_context"></marker>
+      <p>A <em>match context</em> is similar to a sub binary, but is
+      optimized for binary matching. For example, it contains a direct
+      pointer to the binary data. For each field that is matched out of
+      a binary, the position in the match context is incremented.</p>
 
     <p>In R11B, a match context was only used during a binary matching
     operation.</p>
@@ -122,27 +145,28 @@ my_binary_to_list(<<>>) -> [].]]></code>
     context and discard the sub binary. Instead of creating a sub binary,
     the match context is kept.</p>
 
-    <p>The compiler can only do this optimization if it can know for sure
+    <p>The compiler can only do this optimization if it knows
     that the match context will not be shared. If it would be shared, the
     functional properties (also called referential transparency) of Erlang
     would break.</p>
+    </section>
   </section>
 
   <section>
-    <title>Constructing binaries</title>
-
-    <p>In R12B, appending to a binary or bitstring</p>
+    <title>Constructing Binaries</title>
+    <p>In R12B, appending to a binary or bitstring
+    is specially optimized by the <em>runtime system</em>:</p>
 
   <code type="erl"><![CDATA[
 <<Binary/binary, ...>>
 <<Binary/bitstring, ...>>]]></code>
 
-    <p>is specially optimized by the <em>run-time system</em>.
-    Because the run-time system handles the optimization (instead of
+    <p>As the runtime system handles the optimization (instead of
     the compiler), there are very few circumstances in which the optimization
-    will not work.</p>
+    does not work.</p>
 
-    <p>To explain how it works, we will go through this code</p>
+    <p>To explain how it works, let us examine the following code line
+    by line:</p>
 
   <code type="erl"><![CDATA[
 Bin0 = <<0>>,                    %% 1
@@ -152,81 +176,81 @@ Bin3 = <<Bin2/binary,7,8,9>>,    %% 4
 Bin4 = <<Bin1/binary,17>>,       %% 5 !!!
 {Bin4,Bin3}                      %% 6]]></code>
 
-    <p>line by line.</p>
-
-    <p>The first line (marked with the <c>%% 1</c> comment), assigns
+  <list type="bulleted">
+    <item>Line 1 (marked with the <c>%% 1</c> comment), assigns
     a <seealso marker="#heap_binary">heap binary</seealso> to
-    the variable <c>Bin0</c>.</p>
+    the <c>Bin0</c> variable.</item>
 
-    <p>The second line is an append operation. Since <c>Bin0</c>
+    <item>Line 2 is an append operation. As <c>Bin0</c>
     has not been involved in an append operation,
     a new <seealso marker="#refc_binary">refc binary</seealso>
-    will be created and the contents of <c>Bin0</c> will be copied
-    into it. The <em>ProcBin</em> part of the refc binary will have
+    is created and the contents of <c>Bin0</c> is copied
+    into it. The <em>ProcBin</em> part of the refc binary has
     its size set to the size of the data stored in the binary, while
-    the binary object will have extra space allocated. 
-    The size of the binary object will be either twice the
+    the binary object has extra space allocated.
+    The size of the binary object is either twice the
     size of <c>Bin0</c> or 256, whichever is larger. In this case
-    it will be 256.</p>
+    it is 256.</item>
 
-    <p>It gets more interesting in the third line.
+    <item>Line 3 is more interesting.
     <c>Bin1</c> <em>has</em> been used in an append operation,
-    and it has 255 bytes of unused storage at the end, so the three new bytes
-    will be stored there.</p>
+    and it has 255 bytes of unused storage at the end, so the 3 new
+    bytes are stored there.</item>
 
-    <p>Same thing in the fourth line. There are 252 bytes left,
-    so there is no problem storing another three bytes.</p>
+    <item>Line 4. The same applies here. There are 252 bytes left,
+    so there is no problem storing another 3 bytes.</item>
 
-    <p>But in the fifth line something <em>interesting</em> happens.
-    Note that we don't append to the previous result in <c>Bin3</c>,
-    but to <c>Bin1</c>. We expect that <c>Bin4</c> will be assigned
-    the value <c>&lt;&lt;0,1,2,3,17&gt;&gt;</c>. We also expect that
+    <item>Line 5. Here, something <em>interesting</em> happens. Notice
+    that the result is not appended to the previous result in <c>Bin3</c>,
+    but to <c>Bin1</c>. It is expected that <c>Bin4</c> will be assigned
+    the value <c>&lt;&lt;0,1,2,3,17&gt;&gt;</c>. It is also expected that
     <c>Bin3</c> will retain its value
     (<c>&lt;&lt;0,1,2,3,4,5,6,7,8,9&gt;&gt;</c>).
-    Clearly, the run-time system cannot write the byte <c>17</c> into the binary,
+    Clearly, the runtime system cannot write byte <c>17</c> into the binary,
     because that would change the value of <c>Bin3</c> to
-    <c>&lt;&lt;0,1,2,3,4,17,6,7,8,9&gt;&gt;</c>.</p>
-
-    <p>What will happen?</p>
+    <c>&lt;&lt;0,1,2,3,4,17,6,7,8,9&gt;&gt;</c>.</item>
+  </list>
 
-    <p>The run-time system will see that <c>Bin1</c> is the result
+    <p>The runtime system sees that <c>Bin1</c> is the result
     from a previous append operation (not from the latest append operation),
-    so it will <em>copy</em> the contents of <c>Bin1</c> to a new binary
-    and reserve extra storage and so on. (We will not explain here how the
-    run-time system can know that it is not allowed to write into <c>Bin1</c>;
+    so it <em>copies</em> the contents of <c>Bin1</c> to a new binary,
+    reserve extra storage, and so on. (Here is not explained how the
+    runtime system can know that it is not allowed to write into <c>Bin1</c>;
     it is left as an exercise to the curious reader to figure out how it is
     done by reading the emulator sources, primarily <c>erl_bits.c</c>.)</p>
 
     <section>
-      <title>Circumstances that force copying</title>
+      <title>Circumstances That Force Copying</title>
 
       <p>The optimization of the binary append operation requires that
       there is a <em>single</em> ProcBin and a <em>single reference</em> to the
       ProcBin for the binary. The reason is that the binary object can be
-      moved (reallocated) during an append operation, and when that happens
+      moved (reallocated) during an append operation, and when that happens,
       the pointer in the ProcBin must be updated. If there would be more than
       one ProcBin pointing to the binary object, it would not be possible to
       find and update all of them.</p>
 
-      <p>Therefore, certain operations on a binary will mark it so that
+      <p>Therefore, certain operations on a binary mark it so that
       any future append operation will be forced to copy the binary.
       In most cases, the binary object will be shrunk at the same time 
       to reclaim the extra space allocated for growing.</p>
 
-      <p>When appending to a binary</p>
+      <p>When appending to a binary as follows, only the binary returned
+      from the latest append operation will support further cheap append
+      operations:</p>
       
   <code type="erl"><![CDATA[
 Bin = <<Bin0,...>>]]></code>
 
-      <p>only the binary returned from the latest append operation will
-      support further cheap append operations. In the code fragment above,
+      <p>In the code fragment in the beginning of this section,
       appending to <c>Bin</c> will be cheap, while appending to <c>Bin0</c>
       will force the creation of a new binary and copying of the contents
       of <c>Bin0</c>.</p>
 
       <p>If a binary is sent as a message to a process or port, the binary
       will be shrunk and any further append operation will copy the binary
-      data into a new binary. For instance, in the following code fragment</p>
+      data into a new binary. For example, in the following code fragment
+      <c>Bin1</c> will be copied in the third line:</p>
 
   <code type="erl"><![CDATA[
 Bin1 = <<Bin0,...>>,
@@ -234,12 +258,12 @@ PortOrPid ! Bin1,
 Bin = <<Bin1,...>>  %% Bin1 will be COPIED
 ]]></code>
 
-      <p><c>Bin1</c> will be copied in the third line.</p>
-
-      <p>The same thing happens if you insert a binary into an <em>ets</em>
-      table or send it to a port using <c>erlang:port_command/2</c> or pass it to
+      <p>The same happens if you insert a binary into an Ets
+      table, send it to a port using <c>erlang:port_command/2</c>, or
+      pass it to
       <seealso marker="erts:erl_nif#enif_inspect_binary">enif_inspect_binary</seealso>
       in a NIF.</p>
+
       <p>Matching a binary will also cause it to shrink and the next append
       operation will copy the binary data:</p>
 
@@ -249,22 +273,23 @@ Bin1 = <<Bin0,...>>,
 Bin = <<Bin1,...>>  %% Bin1 will be COPIED
 ]]></code>
 
-      <p>The reason is that a <seealso marker="#match_context">match context</seealso>
+      <p>The reason is that a
+      <seealso marker="#match_context">match context</seealso>
       contains a direct pointer to the binary data.</p>
 
-      <p>If a process simply keeps binaries (either in "loop data" or in the process
-      dictionary), the garbage collector may eventually shrink the binaries.
-      If only one such binary is kept, it will not be shrunk. If the process later
-      appends to a binary that has been shrunk, the binary object will be reallocated
-      to make place for the data to be appended.</p>
+      <p>If a process simply keeps binaries (either in "loop data" or in the
+      process
+      dictionary), the garbage collector can eventually shrink the binaries.
+      If only one such binary is kept, it will not be shrunk. If the process
+      later appends to a binary that has been shrunk, the binary object will
+      be reallocated to make place for the data to be appended.</p>
     </section>
-
   </section>
 
   <section>
-    <title>Matching binaries</title>
+    <title>Matching Binaries</title>
 
-    <p>We will revisit the example shown earlier</p>
+    <p>Let us revisit the example in the beginning of the previous section:</p>
 
   <p><em>DO</em> (in R12B)</p>
   <code type="erl"><![CDATA[
@@ -272,36 +297,35 @@ my_binary_to_list(<<H,T/binary>>) ->
     [H|my_binary_to_list(T)];
 my_binary_to_list(<<>>) -> [].]]></code>  
 
-  <p>too see what is happening under the hood.</p>
-
-  <p>The very first time <c>my_binary_to_list/1</c> is called,
+  <p>The first time <c>my_binary_to_list/1</c> is called,
   a <seealso marker="#match_context">match context</seealso>
-  will be created. The match context will point to the first
-  byte of the binary. One byte will be matched out and the match context
-  will be updated to point to the second byte in the binary.</p>
+  is created. The match context points to the first
+  byte of the binary. 1 byte is matched out and the match context
+  is updated to point to the second byte in the binary.</p>
 
-  <p>In R11B, at this point a <seealso marker="#sub_binary">sub binary</seealso>
+  <p>In R11B, at this point a
+  <seealso marker="#sub_binary">sub binary</seealso>
   would be created. In R12B,
   the compiler sees that there is no point in creating a sub binary,
   because there will soon be a call to a function (in this case,
-  to <c>my_binary_to_list/1</c> itself) that will immediately
+  to <c>my_binary_to_list/1</c> itself) that immediately will
   create a new match context and discard the sub binary.</p>
 
-  <p>Therefore, in R12B, <c>my_binary_to_list/1</c> will call itself
+  <p>Therefore, in R12B, <c>my_binary_to_list/1</c> calls itself
   with the match context instead of with a sub binary. The instruction
-  that initializes the matching operation will basically do nothing
+  that initializes the matching operation basically does nothing
   when it sees that it was passed a match context instead of a binary.</p>
 
   <p>When the end of the binary is reached and the second clause matches,
   the match context will simply be discarded (removed in the next
-  garbage collection, since there is no longer any reference to it).</p>
+  garbage collection, as there is no longer any reference to it).</p>
 
   <p>To summarize, <c>my_binary_to_list/1</c> in R12B only needs to create
   <em>one</em> match context and no sub binaries. In R11B, if the binary
   contains <em>N</em> bytes, <em>N+1</em> match contexts and <em>N</em>
-  sub binaries will be created.</p>
+  sub binaries are created.</p>
 
-  <p>In R11B, the fastest way to match binaries is:</p>
+  <p>In R11B, the fastest way to match binaries is as follows:</p>
 
   <p><em>DO NOT</em> (in R12B)</p>
   <code type="erl"><![CDATA[
@@ -317,13 +341,14 @@ my_complicated_binary_to_list(Bin, Skip) ->
     end.]]></code>
 
   <p>This function cleverly avoids building sub binaries, but it cannot
-  avoid building a match context in each recursion step. Therefore, in both R11B and R12B,
+  avoid building a match context in each recursion step.
+  Therefore, in both R11B and R12B,
   <c>my_complicated_binary_to_list/1</c> builds <em>N+1</em> match
-  contexts. (In a future release, the compiler might be able to generate code
-  that reuses the match context, but don't hold your breath.)</p>
+  contexts. (In a future Erlang/OTP release, the compiler might be able
+  to generate code that reuses the match context.)</p>
 
-  <p>Returning to <c>my_binary_to_list/1</c>, note that the match context was
-  discarded when the entire binary had been traversed. What happens if
+  <p>Returning to <c>my_binary_to_list/1</c>, notice that the match context
+  was discarded when the entire binary had been traversed. What happens if
   the iteration stops before it has reached the end of the binary? Will
   the optimization still work?</p>
 
@@ -336,29 +361,23 @@ after_zero(<<>>) ->
     <<>>.
   ]]></code>
 
-  <p>Yes, it will. The compiler will remove the building of the sub binary in the
-  second clause</p>
+  <p>Yes, it will. The compiler will remove the building of the sub binary in
+  the second clause:</p>
 
   <code type="erl"><![CDATA[
-.
-.
-.
+...
 after_zero(<<_,T/binary>>) ->
     after_zero(T);
-.
-.
-.]]></code>
+...]]></code>
 
-  <p>but will generate code that builds a sub binary in the first clause</p>
+  <p>But it will generate code that builds a sub binary in the first clause:</p>
 
   <code type="erl"><![CDATA[
 after_zero(<<0,T/binary>>) ->
     T;
-.
-.
-.]]></code>
+...]]></code>
 
-  <p>Therefore, <c>after_zero/1</c> will build one match context and one sub binary
+  <p>Therefore, <c>after_zero/1</c> builds one match context and one sub binary
   (assuming it is passed a binary that contains a zero byte).</p>
 
   <p>Code like the following will also be optimized:</p>
@@ -371,12 +390,14 @@ all_but_zeroes_to_list(<<0,T/binary>>, Acc, Remaining) ->
 all_but_zeroes_to_list(<<Byte,T/binary>>, Acc, Remaining) ->
     all_but_zeroes_to_list(T, [Byte|Acc], Remaining-1).]]></code>
 
-  <p>The compiler will remove building of sub binaries in the second and third clauses,
-  and it will add an instruction to the first clause that will convert <c>Buffer</c>
-  from a match context to a sub binary (or do nothing if <c>Buffer</c> already is a binary).</p>
+  <p>The compiler removes building of sub binaries in the second and third
+  clauses, and it adds an instruction to the first clause that converts
+  <c>Buffer</c> from a match context to a sub binary (or do nothing if
+  <c>Buffer</c> is a binary already).</p>
 
-  <p>Before you begin to think that the compiler can optimize any binary patterns,
-  here is a function that the compiler (currently, at least) is not able to optimize:</p>
+  <p>Before you begin to think that the compiler can optimize any binary
+  patterns, the following function cannot be optimized by the compiler
+  (currently, at least):</p>
 
   <code type="erl"><![CDATA[
 non_opt_eq([H|T1], <<H,T2/binary>>) ->
@@ -386,43 +407,44 @@ non_opt_eq([_|_], <<_,_/binary>>) ->
 non_opt_eq([], <<>>) ->
     true.]]></code>
 
-  <p>It was briefly mentioned earlier that the compiler can only delay creation of
-  sub binaries if it can be sure that the binary will not be shared. In this case,
-  the compiler cannot be sure.</p>
+  <p>It was mentioned earlier that the compiler can only delay creation of
+  sub binaries if it knows that the binary will not be shared. In this case,
+  the compiler cannot know.</p>
 
-  <p>We will soon show how to rewrite <c>non_opt_eq/2</c> so that the delayed sub binary
-  optimization can be applied, and more importantly, we will show how you can find out
-  whether your code can be optimized.</p>
+  <p>Soon it is shown how to rewrite <c>non_opt_eq/2</c> so that the delayed
+  sub binary optimization can be applied, and more importantly, it is shown
+  how you can find out whether your code can be optimized.</p>
 
   <section>
-    <title>The bin_opt_info option</title>
+    <marker id="bin_opt_info"></marker>
+    <title>Option bin_opt_info</title>
 
     <p>Use the <c>bin_opt_info</c> option to have the compiler print a lot of 
-    information about binary optimizations. It can be given either to the compiler or
-    <c>erlc</c></p>
+    information about binary optimizations. It can be given either to the
+    compiler or <c>erlc</c>:</p>
 
   <code type="erl"><![CDATA[
 erlc +bin_opt_info Mod.erl]]></code>
 
-    <p>or passed via an environment variable</p>
+    <p>or passed through an environment variable:</p>
 
   <code type="erl"><![CDATA[
 export ERL_COMPILER_OPTIONS=bin_opt_info]]></code>
 
-    <p>Note that the <c>bin_opt_info</c> is not meant to be a permanent option added
-    to your <c>Makefile</c>s, because it is not possible to eliminate all messages that
-    it generates. Therefore, passing the option through the environment is in most cases
-    the most practical approach.</p>
+    <p>Notice that the <c>bin_opt_info</c> is not meant to be a permanent
+    option added to your <c>Makefile</c>s, because all messages that it
+    generates cannot be eliminated. Therefore, passing the option through
+    the environment is in most cases the most practical approach.</p>
 
-    <p>The warnings will look like this:</p>
+    <p>The warnings look as follows:</p>
 
   <code type="erl"><![CDATA[
 ./efficiency_guide.erl:60: Warning: NOT OPTIMIZED: sub binary is used or returned
 ./efficiency_guide.erl:62: Warning: OPTIMIZED: creation of sub binary delayed]]></code>
 
-    <p>To make it clearer exactly what code the warnings refer to,
-    in the examples that follow, the warnings are inserted as comments
-    after the clause they refer to:</p>
+    <p>To make it clearer exactly what code the warnings refer to, the
+    warnings in the following examples are inserted as comments
+    after the clause they refer to, for example:</p>
 
   <code type="erl"><![CDATA[
 after_zero(<<0,T/binary>>) ->
@@ -434,12 +456,12 @@ after_zero(<<_,T/binary>>) ->
 after_zero(<<>>) ->
     <<>>.]]></code>
 
-    <p>The warning for the first clause tells us that it is not possible to
-    delay the creation of a sub binary, because it will be returned.
-    The warning for the second clause tells us that a sub binary will not be
+    <p>The warning for the first clause says that the creation of a sub
+    binary cannot be delayed, because it will be returned.
+    The warning for the second clause says that a sub binary will not be
     created (yet).</p>
 
-    <p>It is time to revisit the earlier example of the code that could not
+    <p>Let us revisit the earlier example of the code that could not
     be optimized and find out why:</p>
 
   <code type="erl"><![CDATA[
@@ -456,16 +478,16 @@ non_opt_eq([_|_], <<_,_/binary>>) ->
 non_opt_eq([], <<>>) ->
     true.]]></code>
 
-    <p>The compiler emitted two warnings. The <c>INFO</c> warning refers to the function
-    <c>non_opt_eq/2</c> as a callee, indicating that any functions that call <c>non_opt_eq/2</c>
-    will not be able to make delayed sub binary optimization.
-    There is also a suggestion to change argument order.
-    The second warning (that happens to refer to the same line) refers to the construction of
-    the sub binary itself.</p>
+    <p>The compiler emitted two warnings. The <c>INFO</c> warning refers
+    to the function <c>non_opt_eq/2</c> as a callee, indicating that any
+    function that call <c>non_opt_eq/2</c> cannot make delayed sub binary
+    optimization. There is also a suggestion to change argument order.
+    The second warning (that happens to refer to the same line) refers to
+    the construction of the sub binary itself.</p>
     
-    <p>We will soon show another example that should make the distinction between <c>INFO</c>
-    and <c>NOT OPTIMIZED</c> warnings somewhat clearer, but first we will heed the suggestion
-    to change argument order:</p>
+    <p>Soon another example will show the difference between the
+    <c>INFO</c> and <c>NOT OPTIMIZED</c> warnings somewhat clearer, but
+    let us first follow the suggestion to change argument order:</p>
 
   <code type="erl"><![CDATA[
 opt_eq(<<H,T1/binary>>, [H|T2]) ->
@@ -485,15 +507,13 @@ match_body([0|_], <<H,_/binary>>) ->
 	%%    sub binary optimization;
 	%%    SUGGEST changing argument order
     done;
-.
-.
-.]]></code>
+...]]></code>
 
     <p>The warning means that <em>if</em> there is a call to <c>match_body/2</c>
     (from another clause in <c>match_body/2</c> or another function), the
-    delayed sub binary optimization will not be possible. There will be additional
-    warnings for any place where a sub binary is matched out at the end of and
-    passed as the second argument to <c>match_body/2</c>. For instance:</p>
+    delayed sub binary optimization will not be possible. More warnings will
+    occur for any place where a sub binary is matched out at the end of and
+    passed as the second argument to <c>match_body/2</c>, for example:</p>
 
   <code type="erl"><![CDATA[
 match_head(List, <<_:10,Data/binary>>) ->
@@ -504,10 +524,10 @@ match_head(List, <<_:10,Data/binary>>) ->
   </section>
 
   <section>
-    <title>Unused variables</title>
+    <title>Unused Variables</title>
 
-    <p>The compiler itself figures out if a variable is unused. The same
-    code is generated for each of the following functions</p>
+    <p>The compiler figures out if a variable is unused. The same
+    code is generated for each of the following functions:</p>
 
   <code type="erl"><![CDATA[
 count1(<<_,T/binary>>, Count) -> count1(T, Count+1);
@@ -519,11 +539,9 @@ count2(<<>>, Count) -> Count.
 count3(<<_H,T/binary>>, Count) -> count3(T, Count+1);
 count3(<<>>, Count) -> Count.]]></code>
 
-  <p>In each iteration, the first 8 bits in the binary will be skipped, not matched out.</p>
-
+  <p>In each iteration, the first 8 bits in the binary will be skipped,
+  not matched out.</p>
   </section>
-
   </section>
-
 </chapter>
 
diff --git a/system/doc/efficiency_guide/commoncaveats.xml b/system/doc/efficiency_guide/commoncaveats.xml
index 551b0a03e6..71991d342f 100644
--- a/system/doc/efficiency_guide/commoncaveats.xml
+++ b/system/doc/efficiency_guide/commoncaveats.xml
@@ -18,7 +18,6 @@
       basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
       the License for the specific language governing rights and limitations
       under the License.
-
     </legalnotice>
 
     <title>Common Caveats</title>
@@ -29,49 +28,50 @@
     <file>commoncaveats.xml</file>
   </header>
 
-  <p>Here we list a few modules and BIFs to watch out for, and not only
+  <p>This section lists a few modules and BIFs to watch out for, not only
   from a performance point of view.</p>
 
   <section>
-     <title>The timer module</title>
+     <title>Timer Module</title>
 
      <p>Creating timers using <seealso
      marker="erts:erlang#erlang:send_after/3">erlang:send_after/3</seealso>
-     and <seealso marker="erts:erlang#erlang:start_timer/3">erlang:start_timer/3</seealso>
+     and
+     <seealso marker="erts:erlang#erlang:start_timer/3">erlang:start_timer/3</seealso>
+,
      is much more efficient than using the timers provided by the
-     <seealso marker="stdlib:timer">timer</seealso> module. The
-     <c>timer</c> module uses a separate process to manage the timers,
-     and that process can easily become overloaded if many processes
+     <seealso marker="stdlib:timer">timer</seealso> module in STDLIB.
+     The <c>timer</c> module uses a separate process to manage the timers.
+     That process can easily become overloaded if many processes
      create and cancel timers frequently (especially when using the
      SMP emulator).</p>
 
-     <p>The functions in the <c>timer</c> module that do not manage timers (such as
-     <c>timer:tc/3</c> or <c>timer:sleep/1</c>), do not call the timer-server process
-     and are therefore harmless.</p>
+     <p>The functions in the <c>timer</c> module that do not manage timers
+     (such as <c>timer:tc/3</c> or <c>timer:sleep/1</c>), do not call the
+     timer-server process and are therefore harmless.</p>
   </section>
 
   <section>
     <title>list_to_atom/1</title>
 
-    <p>Atoms are not garbage-collected. Once an atom is created, it will never
-    be removed. The emulator will terminate if the limit for the number
-    of atoms (1048576 by default) is reached.</p>
+    <p>Atoms are not garbage-collected. Once an atom is created, it is never
+    removed. The emulator terminates if the limit for the number
+    of atoms (1,048,576 by default) is reached.</p>
 
-    <p>Therefore, converting arbitrary input strings to atoms could be
-    dangerous in a system that will run continuously.
-    If only certain well-defined atoms are allowed as input, you can use
+    <p>Therefore, converting arbitrary input strings to atoms can be
+    dangerous in a system that runs continuously.
+    If only certain well-defined atoms are allowed as input,
     <seealso marker="erts:erlang#list_to_existing_atom/1">list_to_existing_atom/1</seealso>
+    can be used to
     to guard against a denial-of-service attack. (All atoms that are allowed
-    must have been created earlier, for instance by simply using all of them
+    must have been created earlier, for example, by simply using all of them
     in a module and loading that module.)</p>
 
     <p>Using <c>list_to_atom/1</c> to construct an atom that is passed to
-    <c>apply/3</c> like this</p>
-
+    <c>apply/3</c> as follows, is quite expensive and not recommended
+    in time-critical code:</p>
     <code type="erl">
-apply(list_to_atom("some_prefix"++Var), foo, Args)</code>    
-
-    <p>is quite expensive and is not recommended in time-critical code.</p>
+apply(list_to_atom("some_prefix"++Var), foo, Args)</code>
   </section>
 
   <section>
@@ -81,25 +81,25 @@ apply(list_to_atom("some_prefix"++Var), foo, Args)</code>
     length of the list, as opposed to <c>tuple_size/1</c>, <c>byte_size/1</c>,
     and <c>bit_size/1</c>, which all execute in constant time.</p>
 
-    <p>Normally you don't have to worry about the speed of <c>length/1</c>,
-    because it is efficiently implemented in C. In time critical-code, though,
-    you might want to avoid it if the input list could potentially be very long.</p>
+    <p>Normally, there is no need to worry about the speed of <c>length/1</c>,
+    because it is efficiently implemented in C. In time-critical code,
+    you might want to avoid it if the input list could potentially be very
+    long.</p>
 
     <p>Some uses of <c>length/1</c> can be replaced by matching.
-    For instance, this code</p>
-
+    For example, the following code:</p>
     <code type="erl">
 foo(L) when length(L) >= 3 ->
     ...</code>    
 
-    <p>can be rewritten to</p>
+    <p>can be rewritten to:</p>
     <code type="erl">
 foo([_,_,_|_]=L) ->
    ...</code>    
 
-   <p>(One slight difference is that <c>length(L)</c> will fail if the <c>L</c>
-   is an improper list, while the pattern in the second code fragment will
-   accept an improper list.)</p>
+   <p>One slight difference is that <c>length(L)</c> fails if <c>L</c>
+   is an improper list, while the pattern in the second code fragment
+   accepts an improper list.</p>
   </section>
 
   <section>
@@ -107,50 +107,49 @@ foo([_,_,_|_]=L) ->
 
     <p><seealso marker="erts:erlang#setelement/3">setelement/3</seealso>
     copies the tuple it modifies. Therefore, updating a tuple in a loop
-    using <c>setelement/3</c> will create a new copy of the tuple every time.</p>
+    using <c>setelement/3</c> creates a new copy of the tuple every time.</p>
     
     <p>There is one exception to the rule that the tuple is copied.
     If the compiler clearly can see that destructively updating the tuple would
-    give exactly the same result as if the tuple was copied, the call to
-    <c>setelement/3</c> will be replaced with a special destructive setelement
-    instruction. In the following code sequence</p>
-
+    give the same result as if the tuple was copied, the call to
+    <c>setelement/3</c> is replaced with a special destructive <c>setelement</c>
+    instruction. In the following code sequence, the first <c>setelement/3</c>
+    call copies the tuple and modifies the ninth element:</p>
     <code type="erl">
 multiple_setelement(T0) ->
     T1 = setelement(9, T0, bar),
     T2 = setelement(7, T1, foobar),
     setelement(5, T2, new_value).</code>    
 
-    <p>the first <c>setelement/3</c> call will copy the tuple and modify the
-    ninth element. The two following <c>setelement/3</c> calls will modify
+    <p>The two following <c>setelement/3</c> calls modify
     the tuple in place.</p>
 
-    <p>For the optimization to be applied, <em>all</em> of the followings conditions
+    <p>For the optimization to be applied, <em>all</em> the followings conditions
     must be true:</p>
 
     <list type="bulleted">
     <item>The indices must be integer literals, not variables or expressions.</item>
     <item>The indices must be given in descending order.</item>
-    <item>There must be no calls to other function in between the calls to
+    <item>There must be no calls to another function in between the calls to
     <c>setelement/3</c>.</item>
     <item>The tuple returned from one <c>setelement/3</c> call must only be used
     in the subsequent call to <c>setelement/3</c>.</item>
     </list>
 
-    <p>If it is not possible to structure the code as in the <c>multiple_setelement/1</c>
+    <p>If the code cannot be structured as in the <c>multiple_setelement/1</c>
     example, the best way to modify multiple elements in a large tuple is to
-    convert the tuple to a list, modify the list, and convert the list back to
+    convert the tuple to a list, modify the list, and convert it back to
     a tuple.</p>
   </section>
 
   <section>
     <title>size/1</title>
 
-    <p><c>size/1</c> returns the size for both tuples and binary.</p>
+    <p><c>size/1</c> returns the size for both tuples and binaries.</p>
 
-    <p>Using the new BIFs <c>tuple_size/1</c> and <c>byte_size/1</c> introduced
-    in R12B gives the compiler and run-time system more opportunities for
-    optimization. A further advantage is that the new BIFs could help Dialyzer
+    <p>Using the new BIFs <c>tuple_size/1</c> and <c>byte_size/1</c>, introduced
+    in R12B, gives the compiler and the runtime system more opportunities for
+    optimization. Another advantage is that the new BIFs can help Dialyzer to
     find more bugs in your program.</p>
   </section>
 
@@ -159,22 +158,21 @@ multiple_setelement(T0) ->
       <p>It is usually more efficient to split a binary using matching
       instead of calling the <c>split_binary/2</c> function.
       Furthermore, mixing bit syntax matching and <c>split_binary/2</c>
-      may prevent some optimizations of bit syntax matching.</p>
+      can prevent some optimizations of bit syntax matching.</p>
 
         <p><em>DO</em></p>
         <code type="none"><![CDATA[
         <<Bin1:Num/binary,Bin2/binary>> = Bin,]]></code>
         <p><em>DO NOT</em></p>
         <code type="none">
-        {Bin1,Bin2} = split_binary(Bin, Num)
-        </code>
+        {Bin1,Bin2} = split_binary(Bin, Num)</code>
    </section>
 
   <section>
-    <title>The '--' operator</title>
-     <p>Note that the '<c>--</c>' operator has a complexity
-     proportional to the product of the length of its operands,
-     meaning that it will be very slow if both of its operands
+    <title>Operator "--"</title>
+     <p>The "<c>--</c>" operator has a complexity
+     proportional to the product of the length of its operands.
+     This means that the operator is very slow if both of its operands
      are long lists:</p>
 
         <p><em>DO NOT</em></p>
@@ -182,42 +180,39 @@ multiple_setelement(T0) ->
         HugeList1 -- HugeList2]]></code>
 
      <p>Instead use the <seealso marker="stdlib:ordsets">ordsets</seealso>
-     module:</p>
+     module in STDLIB:</p>
 
         <p><em>DO</em></p>
         <code type="none">
         HugeSet1 = ordsets:from_list(HugeList1),
         HugeSet2 = ordsets:from_list(HugeList2),
-        ordsets:subtract(HugeSet1, HugeSet2)
-        </code>
+        ordsets:subtract(HugeSet1, HugeSet2)</code>
 
-     <p>Obviously, that code will not work if the original order
+     <p>Obviously, that code does not work if the original order
      of the list is important. If the order of the list must be
-     preserved, do like this:</p>
+     preserved, do as follows:</p>
 
         <p><em>DO</em></p>
         <code type="none"><![CDATA[
         Set = gb_sets:from_list(HugeList2),
         [E || E <- HugeList1, not gb_sets:is_element(E, Set)]]]></code>
 
-     <p>Subtle note 1: This code behaves differently from '<c>--</c>'
-     if the lists contain duplicate elements. (One occurrence
-     of an element in HugeList2 will remove <em>all</em>
+     <note><p>This code behaves differently from "<c>--</c>"
+     if the lists contain duplicate elements (one occurrence
+     of an element in HugeList2 removes <em>all</em>
      occurrences in HugeList1.)</p>
+     <p>Also, this code compares lists elements using the
+     "<c>==</c>" operator, while "<c>--</c>" uses the "<c>=:=</c>" operator.
+     If that difference is important, <c>sets</c> can be used instead of
+     <c>gb_sets</c>, but <c>sets:from_list/1</c> is much
+     slower than <c>gb_sets:from_list/1</c> for long lists.</p></note>
 
-     <p>Subtle note 2: This code compares lists elements using the
-     '<c>==</c>' operator, while '<c>--</c>' uses the '<c>=:=</c>'. If
-     that difference is important, <c>sets</c> can be used instead of
-     <c>gb_sets</c>, but note that <c>sets:from_list/1</c> is much
-     slower than <c>gb_sets:from_list/1</c> for long lists.</p>
-
-     <p>Using the '<c>--</c>' operator to delete an element
+     <p>Using the "<c>--</c>" operator to delete an element
      from a list is not a performance problem:</p>
 
         <p><em>OK</em></p>
         <code type="none">
-        HugeList1 -- [Element]
-        </code>
+        HugeList1 -- [Element]</code>
 
    </section>
 
diff --git a/system/doc/efficiency_guide/drivers.xml b/system/doc/efficiency_guide/drivers.xml
index dfc49bdf21..33d6333e7d 100644
--- a/system/doc/efficiency_guide/drivers.xml
+++ b/system/doc/efficiency_guide/drivers.xml
@@ -18,7 +18,6 @@
       basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
       the License for the specific language governing rights and limitations
       under the License.
-    
     </legalnotice>
 
     <title>Drivers</title>
@@ -29,26 +28,26 @@
     <file>drivers.xml</file>
   </header>
 
-  <p>This chapter provides a (very) brief overview on how to write efficient
-  drivers. It is assumed that you already have a good understanding of
+  <p>This section provides a brief overview on how to write efficient
   drivers.</p>
+  <p>It is assumed that you have a good understanding of drivers.</p>
 
   <section>
-    <title>Drivers and concurrency</title>
+    <title>Drivers and Concurrency</title>
 
-    <p>The run-time system will always take a lock before running
+    <p>The runtime system always takes a lock before running
     any code in a driver.</p>
 
-    <p>By default, that lock will be at the driver level, meaning that
+    <p>By default, that lock is at the driver level, that is,
     if several ports have been opened to the same driver, only code for
     one port at the same time can be running.</p>
 
-    <p>A driver can be configured to instead have one lock for each port.</p>
+    <p>A driver can be configured to have one lock for each port instead.</p>
 
-    <p>If a driver is used in a functional way (i.e. it holds no state,
+    <p>If a driver is used in a functional way (that is, holds no state,
     but only does some heavy calculation and returns a result), several
-    ports with registered names can be opened beforehand and the port to
-    be used can be chosen based on the scheduler ID like this:</p>
+    ports with registered names can be opened beforehand, and the port to
+    be used can be chosen based on the scheduler ID as follows:</p>
 
     <code type="none">
 -define(PORT_NAMES(),
@@ -67,82 +66,82 @@ client_port() ->
   </section>
 
   <section>
-    <title>Avoiding copying of binaries when calling a driver</title>
+    <title>Avoiding Copying Binaries When Calling a Driver</title>
 
     <p>There are basically two ways to avoid copying a binary that is
-    sent to a driver.</p>
-
-    <p>If the <c>Data</c> argument for
-    <seealso marker="erts:erlang#port_control/3">port_control/3</seealso>
-    is a binary, the driver will be passed a pointer to the contents of
-    the binary and the binary will not be copied.
-    If the <c>Data</c> argument is an iolist (list of binaries and lists),
-    all binaries in the iolist will be copied.</p>
-
-    <p>Therefore, if you want to send both a pre-existing binary and some
-    additional data to a driver without copying the binary, you must call
-    <c>port_control/3</c> twice; once with the binary and once with the
-    additional data. However, that will only work if there is only one
-    process communicating with the port (because otherwise another process
-    could call the driver in-between the calls).</p>
-
-    <p>Another way to avoid copying binaries is to implement an <c>outputv</c>
-    callback (instead of an <c>output</c> callback) in the driver.
-    If a driver has an <c>outputv</c> callback, refc binaries passed
-    in an iolist in the <c>Data</c> argument for
-    <seealso marker="erts:erlang#port_command/2">port_command/2</seealso>
-    will be passed as references to the driver.</p>
+    sent to a driver:</p>
+
+    <list type="bulleted">
+      <item><p>If the <c>Data</c> argument for
+      <seealso marker="erts:erlang#port_control/3">port_control/3</seealso>
+      is a binary, the driver will be passed a pointer to the contents of
+      the binary and the binary will not be copied. If the <c>Data</c>
+      argument is an iolist (list of binaries and lists), all binaries in
+      the iolist will be copied.</p>
+
+      <p>Therefore, if you want to send both a pre-existing binary and some
+      extra data to a driver without copying the binary, you must call
+      <c>port_control/3</c> twice; once with the binary and once with the
+      extra data. However, that will only work if there is only one
+      process communicating with the port (because otherwise another process
+      can call the driver in-between the calls).</p></item>
+
+      <item><p>Implement an <c>outputv</c> callback (instead of an
+      <c>output</c> callback) in the driver. If a driver has an
+      <c>outputv</c> callback, refc binaries passed in an iolist
+      in the <c>Data</c> argument for
+      <seealso marker="erts:erlang#port_command/2">port_command/2</seealso>
+      will be passed as references to the driver.</p></item>
+    </list>
   </section>
 
   <section>
-    <title>Returning small binaries from a driver</title>
+    <title>Returning Small Binaries from a Driver</title>
 
-    <p>The run-time system can represent binaries up to 64 bytes as
-    heap binaries. They will always be copied when sent in a messages,
-    but they will require less memory if they are not sent to another
+    <p>The runtime system can represent binaries up to 64 bytes as
+    heap binaries. They are always copied when sent in messages,
+    but they require less memory if they are not sent to another
     process and garbage collection is cheaper.</p>
 
-    <p>If you know that the binaries you return are always small,
-    you should use driver API calls that do not require a pre-allocated
-    binary, for instance
+    <p>If you know that the binaries you return are always small, you
+    are advised to use driver API calls that do not require a pre-allocated
+    binary, for example,
     <seealso marker="erts:erl_driver#driver_output">driver_output()</seealso>
-    or 
-    <seealso marker="erts:erl_driver#erl_drv_output_term">erl_drv_output_term()</seealso>
+    or
+    <seealso marker="erts:erl_driver#erl_drv_output_term">erl_drv_output_term()</seealso>,
     using the <c>ERL_DRV_BUF2BINARY</c> format,
-    to allow the run-time to construct a heap binary.</p>
+    to allow the runtime to construct a heap binary.</p>
 
   </section>
 
   <section>
-    <title>Returning big binaries without copying from a driver</title>
+    <title>Returning Large Binaries without Copying from a Driver</title>
 
-    <p>To avoid copying data when a big binary is sent or returned from
+    <p>To avoid copying data when a large binary is sent or returned from
     the driver to an Erlang process, the driver must first allocate the
     binary and then send it to an Erlang process in some way.</p>
     
-    <p>Use <seealso marker="erts:erl_driver#driver_alloc_binary">driver_alloc_binary()</seealso> to allocate a binary.</p>
+    <p>Use
+    <seealso marker="erts:erl_driver#driver_alloc_binary">driver_alloc_binary()</seealso>
+    to allocate a binary.</p>
 
     <p>There are several ways to send a binary created with
-    <c>driver_alloc_binary()</c>.</p>
+    <c>driver_alloc_binary()</c>:</p>
 
     <list type="bulleted">
-    <item><p>From the <c>control</c> callback, a binary can be returned provided
-        that
-	<seealso marker="erts:erl_driver#set_port_control_flags">set_port_control_flags()</seealso>
-	 has been called with the flag value <c>PORT_CONTROL_FLAG_BINARY</c>.</p>
-    </item>
+    <item>From the <c>control</c> callback, a binary can be returned if
+    <seealso marker="erts:erl_driver#set_port_control_flags">set_port_control_flags()</seealso>
+    has been called with the flag value <c>PORT_CONTROL_FLAG_BINARY</c>.</item>
 
-    <item><p>A single binary can be sent with
-    <seealso marker="erts:erl_driver#driver_output_binary">driver_output_binary()</seealso>.</p></item>
+    <item>A single binary can be sent with
+    <seealso marker="erts:erl_driver#driver_output_binary">driver_output_binary()</seealso>.</item>
 
-    <item><p>Using
+    <item>Using
     <seealso marker="erts:erl_driver#erl_drv_output_term">erl_drv_output_term()</seealso>
     or
     <seealso marker="erts:erl_driver#erl_drv_send_term">erl_drv_send_term()</seealso>,
-    a binary can be included in an Erlang term.</p>
-    </item>
+    a binary can be included in an Erlang term.</item>
     </list>
 
   </section>
-
 </chapter>
diff --git a/system/doc/efficiency_guide/functions.xml b/system/doc/efficiency_guide/functions.xml
index ec1a45eaa9..bd23c9d90d 100644
--- a/system/doc/efficiency_guide/functions.xml
+++ b/system/doc/efficiency_guide/functions.xml
@@ -18,7 +18,6 @@
       basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
       the License for the specific language governing rights and limitations
       under the License.
-
     </legalnotice>
 
     <title>Functions</title>
@@ -30,17 +29,18 @@
   </header>
 
   <section>
-    <title>Pattern matching</title>
-    <p>Pattern matching in function head and in <c>case</c> and <c>receive</c>
-     clauses are optimized by the compiler. With a few exceptions, there is nothing
-     to gain by rearranging clauses.</p>
+    <title>Pattern Matching</title>
+    <p>Pattern matching in function head as well as in <c>case</c> and
+    <c>receive</c> clauses are optimized by the compiler. With a few
+    exceptions, there is nothing to gain by rearranging clauses.</p>
 
     <p>One exception is pattern matching of binaries. The compiler
-    will not rearrange clauses that match binaries. Placing the
-    clause that matches against the empty binary <em>last</em> will usually
-    be slightly faster than placing it <em>first</em>.</p>
+    does not rearrange clauses that match binaries. Placing the
+    clause that matches against the empty binary <em>last</em> is usually
+    slightly faster than placing it <em>first</em>.</p>
 
-    <p>Here is a rather contrived example to show another exception:</p>
+    <p>The following is a rather unnatural example to show another
+    exception:</p>
 
     <p><em>DO NOT</em></p>
     <code type="erl">
@@ -53,27 +53,30 @@ atom_map1(five) -> 5;
 atom_map1(six) -> 6.</code>
 
      <p>The problem is the clause with the variable <c>Int</c>.
-     Since a variable can match anything, including the atoms
-     <c>four</c>, <c>five</c>, and <c>six</c> that the following clauses
-     also will match, the compiler must generate sub-optimal code that will
-     execute as follows:</p>
+     As a variable can match anything, including the atoms
+     <c>four</c>, <c>five</c>, and <c>six</c>, which the following clauses
+     also match, the compiler must generate suboptimal code that
+     executes as follows:</p>
 
-     <p>First the input value is compared to <c>one</c>, <c>two</c>, and
+     <list type="bulleted">
+     <item>First, the input value is compared to <c>one</c>, <c>two</c>, and
      <c>three</c> (using a single instruction that does a binary search;
      thus, quite efficient even if there are many values) to select which
-     one of the first three clauses to execute (if any).</p>
+     one of the first three clauses to execute (if any).</item>
+
+     <item>>If none of the first three clauses match, the fourth clause
+     match as a variable always matches.</item>
 
-     <p>If none of the first three clauses matched, the fourth clause
-     will match since a variable always matches. If the guard test
-     <c>is_integer(Int)</c> succeeds, the fourth clause will be
-     executed.</p>
+     <item>If the guard test <c>is_integer(Int)</c> succeeds, the fourth
+     clause is executed.</item>
 
-     <p>If the guard test failed, the input value is compared to
+     <item>If the guard test fails, the input value is compared to
      <c>four</c>, <c>five</c>, and <c>six</c>, and the appropriate clause
-     is selected. (There will be a <c>function_clause</c> exception if
-     none of the values matched.)</p>
+     is selected. (There is a <c>function_clause</c> exception if none of
+     the values matched.)</item>
+     </list>
 
-     <p>Rewriting to either</p>
+     <p>Rewriting to either:</p>
 
      <p><em>DO</em></p>
      <code type="erl"><![CDATA[
@@ -85,7 +88,7 @@ atom_map2(five) -> 5;
 atom_map2(six) -> 6;
 atom_map2(Int) when is_integer(Int) -> Int.]]></code>
 
-     <p>or</p> 
+     <p>or:</p>
 
      <p><em>DO</em></p>
      <code type="erl"><![CDATA[
@@ -97,9 +100,9 @@ atom_map3(four) -> 4;
 atom_map3(five) -> 5;
 atom_map3(six) -> 6.]]></code>
 
-     <p>will give slightly more efficient matching code.</p>
+     <p>gives slightly more efficient matching code.</p>
 
-     <p>Here is a less contrived example:</p>
+     <p>Another example:</p>
 
      <p><em>DO NOT</em></p>
      <code type="erl"><![CDATA[
@@ -116,7 +119,8 @@ map_pairs1(Map, [X|Xs], [Y|Ys]) ->
      match anything, the compiler is not allowed to rearrange the clauses,
      but must generate code that matches them in the order written.</p>
 
-     <p>If the function is rewritten like this</p>
+     <p>If the function is rewritten as follows, the compiler is free to
+     rearrange the clauses:</p>
 
      <p><em>DO</em></p>
      <code type="erl"><![CDATA[
@@ -127,8 +131,7 @@ map_pairs2(_Map, [_|_]=Xs, [] ) ->
 map_pairs2(Map, [X|Xs], [Y|Ys]) ->
     [Map(X, Y)|map_pairs2(Map, Xs, Ys)].]]></code>
 
-    <p>the compiler is free to rearrange the clauses. It will generate code
-    similar to this</p>
+    <p>The compiler will generate code similar to this:</p>
 
     <p><em>DO NOT (already done by the compiler)</em></p>
     <code type="erl"><![CDATA[
@@ -145,31 +148,35 @@ explicit_map_pairs(Map, Xs0, Ys0) ->
 	    Ys0
     end.]]></code>
       
-    <p>which should be slightly faster for presumably the most common case
+    <p>This is slightly faster for probably the most common case
     that the input lists are not empty or very short.
-    (Another advantage is that Dialyzer is able to deduce a better type
-    for the variable <c>Xs</c>.)</p>
+    (Another advantage is that Dialyzer can deduce a better type
+    for the <c>Xs</c> variable.)</p>
   </section>
 
   <section>
-    <title>Function Calls </title>
+    <title>Function Calls</title>
 
-    <p>Here is an intentionally rough guide to the relative costs of
-    different kinds of calls. It is based on benchmark figures run on
+    <p>This is an intentionally rough guide to the relative costs of
+    different calls. It is based on benchmark figures run on
     Solaris/Sparc:</p>
 
     <list type="bulleted">
     <item>Calls to local or external functions (<c>foo()</c>, <c>m:foo()</c>)
-    are the fastest kind of calls.</item>
+    are the fastest calls.</item>
+
     <item>Calling or applying a fun (<c>Fun()</c>, <c>apply(Fun, [])</c>)
-    is about <em>three times</em> as expensive as calling a local function.</item>
+    is about <em>three times</em> as expensive as calling a local
+    function.</item>
+
     <item>Applying an exported function (<c>Mod:Name()</c>,
-    <c>apply(Mod, Name, [])</c>) is about twice as expensive as calling a fun,
-    or about <em>six times</em> as expensive as calling a local function.</item>
+    <c>apply(Mod, Name, [])</c>) is about twice as expensive as calling
+    a fun or about <em>six times</em> as expensive as calling a local
+    function.</item>
     </list>
 
     <section>
-       <title>Notes and implementation details</title>
+       <title>Notes and Implementation Details</title>
 
        <p>Calling and applying a fun does not involve any hash-table lookup.
        A fun contains an (indirect) pointer to the function that implements
@@ -178,42 +185,44 @@ explicit_map_pairs(Map, Xs0, Ys0) ->
        <warning><p><em>Tuples are not fun(s)</em>.
        A "tuple fun", <c>{Module,Function}</c>, is not a fun.
        The cost for calling a "tuple fun" is similar to that
-       of <c>apply/3</c> or worse. Using "tuple funs" is <em>strongly discouraged</em>,
-       as they may not be supported in a future release,
-       and because there exists a superior alternative since the R10B
-       release, namely the <c>fun Module:Function/Arity</c> syntax.</p></warning>
+       of <c>apply/3</c> or worse.
+       Using "tuple funs" is <em>strongly discouraged</em>,
+       as they might not be supported in a future Erlang/OTP release,
+       and because there exists a superior alternative from R10B,
+       namely the <c>fun Module:Function/Arity</c> syntax.</p></warning>
 
        <p><c>apply/3</c> must look up the code for the function to execute
-       in a hash table. Therefore, it will always be slower than a
+       in a hash table. It is therefore always slower than a
        direct call or a fun call.</p>
 
        <p>It no longer matters (from a performance point of view)
-       whether you write</p>
+       whether you write:</p>
 
        <code type="erl">
 Module:Function(Arg1, Arg2)</code>
 
-       <p>or</p>
+       <p>or:</p>
 
        <code type="erl">
 apply(Module, Function, [Arg1,Arg2])</code>
 
-       <p>(The compiler internally rewrites the latter code into the former.)</p>
+       <p>The compiler internally rewrites the latter code into the
+       former.</p>
 
-       <p>The following code</p>
+       <p>The following code is slightly slower because the shape of the
+       list of arguments is unknown at compile time.</p>
 
        <code type="erl">
 apply(Module, Function, Arguments)</code>
 
-       <p>is slightly slower because the shape of the list of arguments
-       is not known at compile time.</p>
     </section>
   </section>
 
   <section>
-    <title>Memory usage in recursion</title>
-    <p>When writing recursive functions it is preferable to make them
-      tail-recursive so that they can execute in constant memory space.</p>
+    <title>Memory Usage in Recursion</title>
+    <p>When writing recursive functions, it is preferable to make them
+      tail-recursive so that they can execute in constant memory space:</p>
+
     <p><em>DO</em></p>
     <code type="none">
 list_length(List) ->
@@ -224,13 +233,14 @@ list_length([], AccLen) ->
 
 list_length([_|Tail], AccLen) ->
     list_length(Tail, AccLen + 1). % Tail-recursive</code>
+
     <p><em>DO NOT</em></p>
+
     <code type="none">
 list_length([]) ->
     0. % Base case
 list_length([_ | Tail]) ->
     list_length(Tail) + 1. % Not tail-recursive</code>
   </section>
-
 </chapter>
 
diff --git a/system/doc/efficiency_guide/introduction.xml b/system/doc/efficiency_guide/introduction.xml
index 9726d3ad11..a8360f1cdd 100644
--- a/system/doc/efficiency_guide/introduction.xml
+++ b/system/doc/efficiency_guide/introduction.xml
@@ -18,7 +18,6 @@
       basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
       the License for the specific language governing rights and limitations
       under the License.
-    
     </legalnotice>
 
     <title>Introduction</title>
@@ -32,38 +31,39 @@
   <section>
     <title>Purpose</title>
 
-    <quote><p>Premature optimization is the root of all evil. -- D.E. Knuth</p></quote>
+    <quote><p>"Premature optimization is the root of all evil"
+    (D.E. Knuth)</p></quote>
 
-    <p>Efficient code can be well-structured and clean code, based on
+    <p>Efficient code can be well-structured and clean, based
     on a sound overall architecture and sound algorithms.
     Efficient code can be highly implementation-code that bypasses
     documented interfaces and takes advantage of obscure quirks in
     the current implementation.</p>
     
-    <p>Ideally, your code should only contain the first kind of efficient
-    code. If that turns out to be too slow, you should profile the application
+    <p>Ideally, your code only contains the first type of efficient
+    code. If that turns out to be too slow, profile the application
     to find out where the performance bottlenecks are and optimize only the
-    bottlenecks. Other code should stay as clean as possible.</p>
+    bottlenecks. Let other code stay as clean as possible.</p>
 
-    <p>Fortunately, compiler and run-time optimizations introduced in
-    R12B makes it easier to write code that is both clean and
-    efficient. For instance, the ugly workarounds needed in R11B and earlier
+    <p>Fortunately, compiler and runtime optimizations introduced in
+    Erlang/OTP R12B makes it easier to write code that is both clean and
+    efficient. For example, the ugly workarounds needed in R11B and earlier
     releases to get the most speed out of binary pattern matching are
     no longer necessary. In fact, the ugly code is slower
     than the clean code (because the clean code has become faster, not
     because the uglier code has become slower).</p>
     
-    <p>This Efficiency Guide cannot really learn you how to write efficient
+    <p>This Efficiency Guide cannot really teach you how to write efficient
     code. It can give you a few pointers about what to avoid and what to use,
     and some understanding of how certain language features are implemented.
-    We have generally not included general tips about optimization that will
-    work in any language, such as moving common calculations out of loops.</p>
+    This guide does not include general tips about optimization that
+    works in any language, such as moving common calculations out of loops.</p>
   </section>
 
   <section>
     <title>Prerequisites</title>
-    <p>It is assumed that the reader is familiar with the Erlang
-      programming language and concepts of OTP.</p>
+    <p>It is assumed that you are familiar with the Erlang programming
+    language and the OTP concepts.</p>
   </section>
 </chapter>
 
diff --git a/system/doc/efficiency_guide/listhandling.xml b/system/doc/efficiency_guide/listhandling.xml
index 9112738b18..b950f55ad1 100644
--- a/system/doc/efficiency_guide/listhandling.xml
+++ b/system/doc/efficiency_guide/listhandling.xml
@@ -18,10 +18,9 @@
       basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
       the License for the specific language governing rights and limitations
       under the License.
-    
     </legalnotice>
 
-    <title>List handling</title>
+    <title>List Handling</title>
     <prepared>Bjorn Gustavsson</prepared>
     <docno></docno>
     <date>2007-11-16</date>
@@ -30,19 +29,18 @@
   </header>
 
   <section>
-    <title>Creating a list</title>
+    <title>Creating a List</title>
     
-    <p>Lists can only be built starting from the end and attaching
-    list elements at the beginning. If you use the <c>++</c> operator
-    like this</p>
+    <p>Lists can only be built starting from the end and attaching list
+    elements at the beginning. If you use the "<c>++</c>" operator as
+    follows, a new list is created that is a copy of the elements in
+    <c>List1</c>, followed by <c>List2</c>:</p>
 
     <code type="erl">
 List1 ++ List2</code>
 
-    <p>you will create a new list which is copy of the elements in <c>List1</c>,
-    followed by <c>List2</c>. Looking at how <c>lists:append/1</c> or <c>++</c> would be
-    implemented in plain Erlang, it can be seen clearly that the first list
-    is copied:</p>
+    <p>Looking at how <c>lists:append/1</c> or <c>++</c> would be
+    implemented in plain Erlang, clearly the first list is copied:</p>
 
     <code type="erl">
 append([H|T], Tail) ->
@@ -50,12 +48,12 @@ append([H|T], Tail) ->
 append([], Tail) ->
     Tail.</code>
 
-    <p>So the important thing when recursing and building a list is to
-    make sure that you attach the new elements to the beginning of the list,
-    so that you build <em>a</em> list, and not hundreds or thousands of
-    copies of the growing result list.</p>
+    <p>When recursing and building a list, it is important to ensure
+    that you attach the new elements to the beginning of the list. In
+    this way, you will build <em>one</em> list, not hundreds or thousands
+    of copies of the growing result list.</p>
 
-    <p>Let us first look at how it should not be done:</p>
+    <p>Let us first see how it is not to be done:</p>
 
     <p><em>DO NOT</em></p>
     <code type="erl"><![CDATA[
@@ -67,11 +65,11 @@ bad_fib(0, _Current, _Next, Fibs) ->
 bad_fib(N, Current, Next, Fibs) -> 
     bad_fib(N - 1, Next, Current + Next, Fibs ++ [Current]).]]></code>
 
-    <p>Here we are not a building a list; in each iteration step we
-    create a new list that is one element longer than the new previous list.</p>
+    <p>Here more than one list is built. In each iteration step a new list
+    is created that is one element longer than the new previous list.</p>
 
-    <p>To avoid copying the result in each iteration, we must build the list in
-    reverse order and reverse the list when we are done:</p>
+    <p>To avoid copying the result in each iteration, build the list in
+    reverse order and reverse the list when you are done:</p>
 
     <p><em>DO</em></p>
     <code type="erl"><![CDATA[
@@ -86,49 +84,45 @@ tail_recursive_fib(N, Current, Next, Fibs) ->
   </section>
 
   <section>
-    <title>List comprehensions</title>
+    <title>List Comprehensions</title>
 
     <p>Lists comprehensions still have a reputation for being slow.
     They used to be implemented using funs, which used to be slow.</p>
 
-    <p>In recent Erlang/OTP releases (including R12B), a list comprehension</p>
+    <p>In recent Erlang/OTP releases (including R12B), a list comprehension:</p>
 
     <code type="erl"><![CDATA[
 [Expr(E) || E <- List]]]></code>
 
-    <p>is basically translated to a local function</p>
+    <p>is basically translated to a local function:</p>
 
     <code type="erl">
 'lc^0'([E|Tail], Expr) ->
     [Expr(E)|'lc^0'(Tail, Expr)];
 'lc^0'([], _Expr) -> [].</code>
 
-    <p>In R12B, if the result of the list comprehension will <em>obviously</em> not be used,
-    a list will not be constructed. For instance, in this code</p>
+    <p>In R12B, if the result of the list comprehension will <em>obviously</em>
+    not be used, a list will not be constructed. For example, in this code:</p>
     
     <code type="erl"><![CDATA[
 [io:put_chars(E) || E <- List],
 ok.]]></code>
  
-    <p>or in this code</p>
+    <p>or in this code:</p>
    
     <code type="erl"><![CDATA[
-.
-.
-.
+...
 case Var of
     ... ->
         [io:put_chars(E) || E <- List];
     ... ->
 end,
 some_function(...),
-.
-.
-.]]></code>
+...]]></code>
     
-    <p>the value is neither assigned to a variable, nor passed to another function,
-    nor returned, so there is no need to construct a list and the compiler will simplify
-    the code for the list comprehension to</p>
+    <p>the value is not assigned to a variable, not passed to another function,
+    and not returned. This means that there is no need to construct a list and
+    the compiler will simplify the code for the list comprehension to:</p>
 
     <code type="erl">
 'lc^0'([E|Tail], Expr) ->
@@ -139,14 +133,15 @@ some_function(...),
   </section>
 
   <section>
-    <title>Deep and flat lists</title>
+    <title>Deep and Flat Lists</title>
 
     <p><seealso marker="stdlib:lists#flatten/1">lists:flatten/1</seealso>
-    builds an entirely new list. Therefore, it is expensive, and even
-    <em>more</em> expensive than the <c>++</c> (which copies its left argument,
-    but not its right argument).</p>
+    builds an entirely new list. It is therefore expensive, and even
+    <em>more</em> expensive than the <c>++</c> operator (which copies its
+    left argument, but not its right argument).</p>
 
-    <p>In the following situations, you can easily avoid calling <c>lists:flatten/1</c>:</p>
+    <p>In the following situations, you can easily avoid calling
+    <c>lists:flatten/1</c>:</p>
 
     <list type="bulleted">
       <item>When sending data to a port. Ports understand deep lists
@@ -155,16 +150,19 @@ some_function(...),
       <item>When calling BIFs that accept deep lists, such as
       <seealso marker="erts:erlang#list_to_binary/1">list_to_binary/1</seealso> or
       <seealso marker="erts:erlang#iolist_to_binary/1">iolist_to_binary/1</seealso>.</item>
-      <item>When you know that your list is only one level deep, you can can use
+      <item>When you know that your list is only one level deep, you can use
       <seealso marker="stdlib:lists#append/1">lists:append/1</seealso>.</item>
     </list>
 
-    <p><em>Port example</em></p>
+    <section>
+      <title>Port Example</title>
+
     <p><em>DO</em></p>
     <pre>
       ...
       port_command(Port, DeepList)
       ...</pre>
+
     <p><em>DO NOT</em></p>
     <pre>
       ...
@@ -180,7 +178,7 @@ some_function(...),
       port_command(Port, TerminatedStr)
       ...</pre>
 
-    <p>Instead do like this:</p>
+    <p>Instead:</p>
 
     <p><em>DO</em></p>
     <pre>
@@ -188,47 +186,53 @@ some_function(...),
       TerminatedStr = [String, 0], % String="foo" => [[$f, $o, $o], 0]
       port_command(Port, TerminatedStr) 
       ...</pre>
+    </section>
+
+    <section>
+      <title>Append Example</title>
 
-    <p><em>Append example</em></p>
     <p><em>DO</em></p>
     <pre>
       > lists:append([[1], [2], [3]]).
       [1,2,3]
       ></pre>
+
     <p><em>DO NOT</em></p>
     <pre>
       > lists:flatten([[1], [2], [3]]).
       [1,2,3]
       ></pre>
+    </section>
   </section>
 
   <section>
-    <title>Why you should not worry about recursive lists functions</title>
+    <title>Recursive List Functions</title>
 
-    <p>In the performance myth chapter, the following myth was exposed:
-    <seealso marker="myths#tail_recursive">Tail-recursive functions
-    are MUCH faster than recursive functions</seealso>.</p>
+    <p>In Section 7.2, the following myth was exposed:
+    <seealso marker="myths#tail_recursive">Tail-Recursive Functions
+    are Much Faster Than Recursive Functions</seealso>.</p>
 
     <p>To summarize, in R12B there is usually not much difference between
     a body-recursive list function and tail-recursive function that reverses
     the list at the end. Therefore, concentrate on writing beautiful code
-    and forget about the performance of your list functions. In the time-critical
-    parts of your code (and only there), <em>measure</em> before rewriting
-    your code.</p>
-
-    <p><em>Important note</em>: This section talks about lists functions that
-    <em>construct</em> lists. A tail-recursive function that does not construct
-    a list runs in constant space, while the corresponding body-recursive
-    function uses stack space proportional to the length of the list.
-    For instance, a function that sums a list of integers, should <em>not</em> be
-    written like this</p>
+    and forget about the performance of your list functions. In the
+    time-critical parts of your code (and only there), <em>measure</em>
+    before rewriting your code.</p>
+
+    <note><p>This section is about list functions that <em>construct</em>
+    lists. A tail-recursive function that does not construct a list runs
+    in constant space, while the corresponding body-recursive function
+    uses stack space proportional to the length of the list.</p></note>
+
+    <p>For example, a function that sums a list of integers, is
+    <em>not</em> to be written as follows:</p>
     
     <p><em>DO NOT</em></p>
     <code type="erl">
 recursive_sum([H|T]) -> H+recursive_sum(T);
 recursive_sum([])    -> 0.</code>
 
-    <p>but like this</p>
+    <p>Instead:</p>
 
     <p><em>DO</em></p>
     <code type="erl">
diff --git a/system/doc/efficiency_guide/myths.xml b/system/doc/efficiency_guide/myths.xml
index b1108dbab2..70d2dae88e 100644
--- a/system/doc/efficiency_guide/myths.xml
+++ b/system/doc/efficiency_guide/myths.xml
@@ -31,47 +31,48 @@
     <file>myths.xml</file>
   </header>
 
+  <marker id="myths"></marker>
   <p>Some truths seem to live on well beyond their best-before date,
-  perhaps because "information" spreads more rapidly from person-to-person
-  faster than a single release note that notes, for instance, that funs
+  perhaps because "information" spreads faster from person-to-person
+  than a single release note that says, for example, that funs
   have become faster.</p>
 
-  <p>Here we try to kill the old truths (or semi-truths) that have
+  <p>This section tries to kill the old truths (or semi-truths) that have
   become myths.</p>
 
   <section>
-    <title>Myth: Funs are slow</title>
-    <p>Yes, funs used to be slow. Very slow. Slower than <c>apply/3</c>.
+    <title>Myth: Funs are Slow</title>
+    <p>Funs used to be very slow, slower than <c>apply/3</c>.
     Originally, funs were implemented using nothing more than
     compiler trickery, ordinary tuples, <c>apply/3</c>, and a great
     deal of ingenuity.</p>
 
-    <p>But that is ancient history. Funs was given its own data type
-    in the R6B release and was further optimized in the R7B release.
-    Now the cost for a fun call falls roughly between the cost for a call to
-    local function and <c>apply/3</c>.</p>
+    <p>But that is history. Funs was given its own data type
+    in R6B and was further optimized in R7B.
+    Now the cost for a fun call falls roughly between the cost for a call
+    to a local function and <c>apply/3</c>.</p>
   </section>
 
   <section>
-    <title>Myth: List comprehensions are slow</title>
+    <title>Myth: List Comprehensions are Slow</title>
 
     <p>List comprehensions used to be implemented using funs, and in the
-    bad old days funs were really slow.</p>
+    old days funs were indeed slow.</p>
 
-    <p>Nowadays the compiler rewrites list comprehensions into an ordinary
-    recursive function. Of course, using a tail-recursive function with
+    <p>Nowadays, the compiler rewrites list comprehensions into an ordinary
+    recursive function. Using a tail-recursive function with
     a reverse at the end would be still faster. Or would it?
     That leads us to the next myth.</p>
   </section>
 
   <section>
-    <title>Myth: Tail-recursive functions are MUCH faster
-    than recursive functions</title>
+    <title>Myth: Tail-Recursive Functions are Much Faster
+    Than Recursive Functions</title>
 
     <p><marker id="tail_recursive"></marker>According to the myth,
     recursive functions leave references
-    to dead terms on the stack and the garbage collector will have to
-    copy all those dead terms, while tail-recursive functions immediately
+    to dead terms on the stack and the garbage collector has to copy
+    all those dead terms, while tail-recursive functions immediately
     discard those terms.</p>
 
     <p>That used to be true before R7B. In R7B, the compiler started
@@ -79,48 +80,47 @@
     be used with an empty list, so that the garbage collector would not
     keep dead values any longer than necessary.</p>
 
-    <p>Even after that optimization, a tail-recursive function would
-    still most of the time be faster than a body-recursive function. Why?</p>
+    <p>Even after that optimization, a tail-recursive function is
+    still most of the times faster than a body-recursive function. Why?</p>
 
     <p>It has to do with how many words of stack that are used in each
-    recursive call. In most cases, a recursive function would use more words
+    recursive call. In most cases, a recursive function uses more words
     on the stack for each recursion than the number of words a tail-recursive
-    would allocate on the heap. Since more memory is used, the garbage
-    collector will be invoked more frequently, and it will have more work traversing
+    would allocate on the heap. As more memory is used, the garbage
+    collector is invoked more frequently, and it has more work traversing
     the stack.</p>
 
-    <p>In R12B and later releases, there is an optimization that will
+    <p>In R12B and later releases, there is an optimization that
     in many cases reduces the number of words used on the stack in
-    body-recursive calls, so that a body-recursive list function and
+    body-recursive calls. A body-recursive list function and a
     tail-recursive function that calls <seealso
-    marker="stdlib:lists#reverse/1">lists:reverse/1</seealso> at the
-    end will use exactly the same amount of memory.
+    marker="stdlib:lists#reverse/1">lists:reverse/1</seealso> at
+    the end will use the same amount of memory.
     <c>lists:map/2</c>, <c>lists:filter/2</c>, list comprehensions,
     and many other recursive functions now use the same amount of space
     as their tail-recursive equivalents.</p>
 
-    <p>So which is faster?</p>
+    <p>So, which is faster?
+    It depends. On Solaris/Sparc, the body-recursive function seems to
+    be slightly faster, even for lists with a lot of elements. On the x86
+    architecture, tail-recursion was up to about 30% faster.</p>
 
-    <p>It depends. On Solaris/Sparc, the body-recursive function seems to
-    be slightly faster, even for lists with very many elements. On the x86
-    architecture, tail-recursion was up to about 30 percent faster.</p>
-
-    <p>So the choice is now mostly a matter of taste. If you really do need
+    <p>So, the choice is now mostly a matter of taste. If you really do need
     the utmost speed, you must <em>measure</em>. You can no longer be
-    absolutely sure that the tail-recursive list function will be the fastest
-    in all circumstances.</p>
+    sure that the tail-recursive list function always is the fastest.</p>
 
-    <p>Note: A tail-recursive function that does not need to reverse the
-    list at the end is, of course, faster than a body-recursive function,
+    <note><p>A tail-recursive function that does not need to reverse the
+    list at the end is faster than a body-recursive function,
     as are tail-recursive functions that do not construct any terms at all
-    (for instance, a function that sums all integers in a list).</p>
+    (for example, a function that sums all integers in a list).</p></note>
   </section>
 
   <section>
-    <title>Myth: '++' is always bad</title>
+    <title>Myth: Operator "++" is Always Bad</title>
 
-    <p>The <c>++</c> operator has, somewhat undeservedly, got a very bad reputation.
-    It probably has something to do with code like</p>
+    <p>The <c>++</c> operator has, somewhat undeservedly, got a bad reputation.
+    It probably has something to do with code like the following,
+    which is the most inefficient way there is to reverse a list:</p>
     
     <p><em>DO NOT</em></p>
     <code type="erl">
@@ -129,12 +129,10 @@ naive_reverse([H|T]) ->
 naive_reverse([]) ->
     [].</code>
 
-    <p>which is the most inefficient way there is to reverse a list.
-    Since the <c>++</c> operator copies its left operand, the result
-    will be copied again and again and again... leading to quadratic
-    complexity.</p>
+    <p>As the <c>++</c> operator copies its left operand, the result
+    is copied repeatedly, leading to quadratic complexity.</p>
 
-    <p>On the other hand, using <c>++</c> like this</p>
+    <p>But using <c>++</c> as follows is not bad:</p>
 
     <p><em>OK</em></p>
     <code type="erl">
@@ -143,11 +141,11 @@ naive_but_ok_reverse([H|T], Acc) ->
 naive_but_ok_reverse([], Acc) ->
     Acc.</code>
 
-    <p>is not bad. Each list element will only be copied once.
+    <p>Each list element is copied only once.
     The growing result <c>Acc</c> is the right operand
-    for the <c>++</c> operator, and it will <em>not</em> be copied.</p>
+    for the <c>++</c> operator, and it is <em>not</em> copied.</p>
 
-    <p>Of course, experienced Erlang programmers would actually write</p>
+    <p>Experienced Erlang programmers would write as follows:</p>
 
     <p><em>DO</em></p>
     <code type="erl">
@@ -156,32 +154,34 @@ vanilla_reverse([H|T], Acc) ->
 vanilla_reverse([], Acc) ->
     Acc.</code>
 
-    <p>which is slightly more efficient because you don't build a
-    list element only to directly copy it. (Or it would be more efficient
-    if the the compiler did not automatically rewrite <c>[H]++Acc</c>
+    <p>This is slightly more efficient because here you do not build a
+    list element only to copy it directly. (Or it would be more efficient
+    if the compiler did not automatically rewrite <c>[H]++Acc</c>
     to <c>[H|Acc]</c>.)</p>
   </section>
 
   <section>
-    <title>Myth: Strings are slow</title>
-
-    <p>Actually, string handling could be slow if done improperly.
-    In Erlang, you'll have to think a little more about how the strings
-    are used and choose an appropriate representation and use
-    the <seealso marker="stdlib:re">re</seealso> module instead of the obsolete
-    <c>regexp</c> module if you are going to use regular expressions.</p>
+    <title>Myth: Strings are Slow</title>
+
+    <p>String handling can be slow if done improperly.
+    In Erlang, you need to think a little more about how the strings
+    are used and choose an appropriate representation. If you
+    use regular expressions, use the
+    <seealso marker="stdlib:re">re</seealso> module in STDLIB
+    instead of the obsolete <c>regexp</c> module.</p>
   </section>
 
   <section>
-    <title>Myth: Repairing a Dets file is very slow</title>
+    <title>Myth: Repairing a Dets File is Very Slow</title>
 
     <p>The repair time is still proportional to the number of records
-    in the file, but Dets repairs used to be much, much slower in the past.
+    in the file, but Dets repairs used to be much slower in the past.
     Dets has been massively rewritten and improved.</p>
   </section>
 
   <section>
-    <title>Myth: BEAM is a stack-based byte-code virtual machine (and therefore slow)</title>
+    <title>Myth: BEAM is a Stack-Based Byte-Code Virtual Machine
+    (and Therefore Slow)</title>
 
     <p>BEAM is a register-based virtual machine. It has 1024 virtual registers
     that are used for holding temporary values and for passing arguments when
@@ -193,11 +193,11 @@ vanilla_reverse([], Acc) ->
   </section>
 
   <section>
-    <title>Myth: Use '_' to speed up your program when a variable is not used</title>
+    <title>Myth: Use "_" to Speed Up Your Program When a Variable
+    is Not Used</title>
 
-    <p>That was once true, but since R6B the BEAM compiler is quite capable of seeing itself
+    <p>That was once true, but from R6B the BEAM compiler can see
     that a variable is not used.</p>
   </section>
-
 </chapter>
 
diff --git a/system/doc/efficiency_guide/processes.xml b/system/doc/efficiency_guide/processes.xml
index 86951e2dcc..3bdc314235 100644
--- a/system/doc/efficiency_guide/processes.xml
+++ b/system/doc/efficiency_guide/processes.xml
@@ -30,15 +30,15 @@
   </header>
 
   <section>
-    <title>Creation of an Erlang process</title>
+    <title>Creating an Erlang Process</title>
 
-    <p>An Erlang process is lightweight compared to operating
-    systems threads and processes.</p>
+    <p>An Erlang process is lightweight compared to threads and
+    processes in operating systems.</p>
 
     <p>A newly spawned Erlang process uses 309 words of memory
     in the non-SMP emulator without HiPE support. (SMP support
-    and HiPE support will both add to this size.) The size can
-    be found out like this:</p>
+    and HiPE support both add to this size.) The size can
+    be found as follows:</p>
 
     <pre>
 Erlang (BEAM) emulator version 5.6 [async-threads:0] [kernel-poll:false]
@@ -51,11 +51,11 @@ Eshell V5.6  (abort with ^G)
 3> <input>Bytes div erlang:system_info(wordsize).</input>
 309</pre>
     
-    <p>The size includes 233 words for the heap area (which includes the stack).
-    The garbage collector will increase the heap as needed.</p>
+    <p>The size includes 233 words for the heap area (which includes the
+    stack). The garbage collector increases the heap as needed.</p>
 
     <p>The main (outer) loop for a process <em>must</em> be tail-recursive.
-    If not, the stack will grow until the process terminates.</p>
+    Otherwise, the stack grows until the process terminates.</p>
 
     <p><em>DO NOT</em></p>
     <code type="erl">
@@ -74,7 +74,7 @@ loop() ->
     <p>The call to <c>io:format/2</c> will never be executed, but a
     return address will still be pushed to the stack each time
     <c>loop/0</c> is called recursively. The correct tail-recursive
-    version of the function looks like this:</p>
+    version of the function looks as follows:</p>
 
     <p><em>DO</em></p>
 <code type="erl">
@@ -90,92 +90,98 @@ loop() ->
     end.</code>
 
     <section>
-      <title>Initial heap size</title>
+      <title>Initial Heap Size</title>
 
       <p>The default initial heap size of 233 words is quite conservative
-      in order to support Erlang systems with hundreds of thousands or
-      even millions of processes. The garbage collector will grow and
-      shrink the heap as needed.</p>
+      to support Erlang systems with hundreds of thousands or
+      even millions of processes. The garbage collector grows and
+      shrinks the heap as needed.</p>
 
       <p>In a system that use comparatively few processes, performance
-      <em>might</em> be improved by increasing the minimum heap size using either
-      the <c>+h</c> option for
+      <em>might</em> be improved by increasing the minimum heap size
+      using either the <c>+h</c> option for
       <seealso marker="erts:erl">erl</seealso> or on a process-per-process
       basis using the <c>min_heap_size</c> option for
       <seealso marker="erts:erlang#spawn_opt/4">spawn_opt/4</seealso>.</p>
 
-      <p>The gain is twofold: Firstly, although the garbage collector will
-      grow the heap, it will grow it step by step, which will be more
-      costly than directly establishing a larger heap when the process
-      is spawned. Secondly, the garbage collector may also shrink the
-      heap if it is much larger than the amount of data stored on it;
-      setting the minimum heap size will prevent that.</p>
-
-      <warning><p>The emulator will probably use more memory, and because garbage
-      collections occur less frequently, huge binaries could be
+      <p>The gain is twofold:</p>
+      <list type="bulleted">
+	<item>Although the garbage collector grows the heap, it grows it
+	step-by-step, which is more costly than directly establishing a
+	larger heap when the process is spawned.</item>
+	<item>The garbage collector can also shrink the heap if it is
+	much larger than the amount of data stored on it;
+	setting the minimum heap size prevents that.</item>
+      </list>
+
+      <warning><p>The emulator probably uses more memory, and because garbage
+      collections occur less frequently, huge binaries can be
       kept much longer.</p></warning>
 
       <p>In systems with many processes, computation tasks that run
-      for a short time could be spawned off into a new process with
-      a higher minimum heap size. When the process is done, it will
-      send the result of the computation to another process and terminate.
-      If the minimum heap size is calculated properly, the process may not
-      have to do any garbage collections at all.
-      <em>This optimization should not be attempted
+      for a short time can be spawned off into a new process with
+      a higher minimum heap size. When the process is done, it sends
+      the result of the computation to another process and terminates.
+      If the minimum heap size is calculated properly, the process might
+      not have to do any garbage collections at all.
+      <em>This optimization is not to be attempted
       without proper measurements.</em></p>
     </section>
-
   </section>
 
   <section>
-    <title>Process messages</title>
+    <title>Process Messages</title>
 
-    <p>All data in messages between Erlang processes is copied, with
-      the exception of
+    <p>All data in messages between Erlang processes is copied,
+      except for
       <seealso marker="binaryhandling#refc_binary">refc binaries</seealso>
       on the same Erlang node.</p>
 
     <p>When a message is sent to a process on another Erlang node,
-      it will first be encoded to the Erlang External Format before
-      being sent via an TCP/IP socket. The receiving Erlang node decodes
-      the message and distributes it to the right process.</p>
+      it is first encoded to the Erlang External Format before
+      being sent through a TCP/IP socket. The receiving Erlang node decodes
+      the message and distributes it to the correct process.</p>
 
     <section>
-      <title>The constant pool</title>
+      <title>Constant Pool</title>
 
       <p>Constant Erlang terms (also called <em>literals</em>) are now
       kept in constant pools; each loaded module has its own pool.
-      The following function</p>
+      The following function does no longer build the tuple every time
+      it is called (only to have it discarded the next time the garbage
+      collector was run), but the tuple is located in the module's
+      constant pool:</p>
 
     <p><em>DO</em> (in R12B and later)</p>
       <code type="erl">
 days_in_month(M) ->
-    element(M, {31,28,31,30,31,30,31,31,30,31,30,31}).</code>     
-
-      <p>will no longer build the tuple every time it is called (only
-      to have it discarded the next time the garbage collector was run), but
-      the tuple will be located in the module's constant pool.</p>
+    element(M, {31,28,31,30,31,30,31,31,30,31,30,31}).</code>
 
       <p>But if a constant is sent to another process (or stored in
-      an ETS table), it will be <em>copied</em>.
-      The reason is that the run-time system must be able
-      to keep track of all references to constants in order to properly
-      unload code containing constants. (When the code is unloaded,
-      the constants will be copied to the heap of the processes that refer
+      an Ets table), it is <em>copied</em>.
+      The reason is that the runtime system must be able
+      to keep track of all references to constants to unload code
+      containing constants properly. (When the code is unloaded,
+      the constants are copied to the heap of the processes that refer
       to them.) The copying of constants might be eliminated in a future
-      release.</p>
+      Erlang/OTP release.</p>
     </section>
 
     <section>
-      <title>Loss of sharing</title>
+      <title>Loss of Sharing</title>
 
-      <p>Shared sub-terms are <em>not</em> preserved when a term is sent
-      to another process, passed as the initial process arguments in
-      the <c>spawn</c> call, or stored in an ETS table.
-      That is an optimization. Most applications do not send messages
-      with shared sub-terms.</p>
+      <p>Shared subterms are <em>not</em> preserved in the following
+      cases:</p>
+      <list type="bulleted">
+	<item>When a term is sent to another process</item>
+	<item>When a term is passed as the initial process arguments in
+	the <c>spawn</c> call</item>
+	<item>When a term is stored in an Ets table</item>
+      </list>
+      <p>That is an optimization. Most applications do not send messages
+      with shared subterms.</p>
 
-      <p>Here is an example of how a shared sub-term can be created:</p>
+      <p>The following example shows how a shared subterm can be created:</p>
 
       <code type="erl">
 kilo_byte() ->
@@ -186,32 +192,32 @@ kilo_byte(0, Acc) ->
 kilo_byte(N, Acc) ->
     kilo_byte(N-1, [Acc|Acc]).</code>
 
-       <p><c>kilo_byte/0</c> creates a deep list. If we call
-       <c>list_to_binary/1</c>, we can convert the deep list to a binary
-       of 1024 bytes:</p>
+       <p><c>kilo_byte/1</c> creates a deep list.
+       If <c>list_to_binary/1</c> is called, the deep list can be
+       converted to a binary of 1024 bytes:</p>
 
       <pre>
 1> <input>byte_size(list_to_binary(efficiency_guide:kilo_byte())).</input>
 1024</pre>
 
-       <p>Using the <c>erts_debug:size/1</c> BIF we can see that the
+       <p>Using the <c>erts_debug:size/1</c> BIF, it can be seen that the
        deep list only requires 22 words of heap space:</p>
 
       <pre>
 2> <input>erts_debug:size(efficiency_guide:kilo_byte()).</input>
 22</pre>
 
-       <p>Using the <c>erts_debug:flat_size/1</c> BIF, we can calculate
-       the size of the deep list if sharing is ignored. It will be
+       <p>Using the <c>erts_debug:flat_size/1</c> BIF, the size of the
+       deep list can be calculated if sharing is ignored. It becomes
        the size of the list when it has been sent to another process
-       or stored in an ETS table:</p>
+       or stored in an Ets table:</p>
 
       <pre>
 3> <input>erts_debug:flat_size(efficiency_guide:kilo_byte()).</input>
 4094</pre>
 
-      <p>We can verify that sharing will be lost if we insert the
-      data into an ETS table:</p>
+      <p>It can be verified that sharing will be lost if the data is
+      inserted into an Ets table:</p>
 
       <pre>
 4> <input>T = ets:new(tab, []).</input>
@@ -223,21 +229,21 @@ true
 7> <input>erts_debug:flat_size(element(2, hd(ets:lookup(T, key)))).</input>
 4094</pre>
 
-      <p>When the data has passed through an ETS table,
+      <p>When the data has passed through an Ets table,
       <c>erts_debug:size/1</c> and <c>erts_debug:flat_size/1</c>
       return the same value. Sharing has been lost.</p>
 
-      <p>In a future release of Erlang/OTP, we might implement a
-      way to (optionally) preserve sharing. We have no plans to make
-      preserving of sharing the default behaviour, since that would
+      <p>In a future Erlang/OTP release, it might be implemented a
+      way to (optionally) preserve sharing. There are no plans to make
+      preserving of sharing the default behaviour, as that would
       penalize the vast majority of Erlang applications.</p>
     </section>
   </section>
 
   <section>
-    <title>The SMP emulator</title>
+    <title>SMP Emulator</title>
 
-    <p>The SMP emulator (introduced in R11B) will take advantage of a
+    <p>The SMP emulator (introduced in R11B) takes advantage of a
     multi-core or multi-CPU computer by running several Erlang scheduler
     threads (typically, the same as the number of cores). Each scheduler
     thread schedules Erlang processes in the same way as the Erlang scheduler
@@ -247,11 +253,11 @@ true
     <em>must have more than one runnable Erlang process</em> most of the time.
     Otherwise, the Erlang emulator can still only run one Erlang process
     at the time, but you must still pay the overhead for locking. Although
-    we try to reduce the locking overhead as much as possible, it will never
-    become exactly zero.</p>
+    Erlang/OTP tries to reduce the locking overhead as much as possible,
+    it will never become exactly zero.</p>
 
-    <p>Benchmarks that may seem to be concurrent are often sequential.
-    The estone benchmark, for instance, is entirely sequential. So is also
+    <p>Benchmarks that appear to be concurrent are often sequential.
+    The estone benchmark, for example, is entirely sequential. So is
     the most common implementation of the "ring benchmark"; usually one process
     is active, while the others wait in a <c>receive</c> statement.</p>
 
@@ -259,6 +265,5 @@ true
     can be used to profile your application to see how much potential (or lack
     thereof) it has for concurrency.</p>
   </section>
-
 </chapter>
 
diff --git a/system/doc/efficiency_guide/profiling.xml b/system/doc/efficiency_guide/profiling.xml
index b93c884270..5df12eefe0 100644
--- a/system/doc/efficiency_guide/profiling.xml
+++ b/system/doc/efficiency_guide/profiling.xml
@@ -30,190 +30,197 @@
   </header>
 
   <section>
-    <title>Do not guess about performance - profile</title>
+    <title>Do Not Guess About Performance - Profile</title>
 
     <p>Even experienced software developers often guess wrong about where
-    the performance bottlenecks are in their programs.</p>
-
-    <p>Therefore, profile your program to see where the performance
+    the performance bottlenecks are in their programs. Therefore, profile
+    your program to see where the performance
     bottlenecks are and concentrate on optimizing them.</p>
 
-    <p>Erlang/OTP contains several tools to help finding bottlenecks.</p>
+    <p>Erlang/OTP contains several tools to help finding bottlenecks:</p>
+
+    <list type="bulleted">
+      <item><c>fprof</c> provides the most detailed information about
+      where the program time is spent, but it significantly slows down the
+      program it profiles.</item>
 
-    <p><c>fprof</c> provide the most detailed information
-    about where the time is spent, but it significantly slows down the
-    program it profiles.</p>
+      <item><p><c>eprof</c> provides time information of each function
+      used in the program. No call graph is produced, but <c>eprof</c> has
+      considerable less impact on the program it profiles.</p>
+      <p>If the program is too large to be profiled by <c>fprof</c> or
+      <c>eprof</c>, the <c>cover</c> and <c>cprof</c> tools can be used
+      to locate code parts that are to be more thoroughly profiled using
+      <c>fprof</c> or <c>eprof</c>.</p></item>
 
-	<p><c>eprof</c> provides time information of each function used
-		in the program. No callgraph is produced but <c>eprof</c> has 
-		considerable less impact on the program profiled.</p>
+      <item><c>cover</c> provides execution counts per line per
+      process, with less overhead than <c>fprof</c>. Execution counts
+      can, with some caution, be used to locate potential performance
+      bottlenecks.</item>
 
-    <p>If the program is too big to be profiled by <c>fprof</c> or <c>eprof</c>,
-    <c>cover</c> and <c>cprof</c> could be used to locate parts of the
-    code that should be more thoroughly profiled using <c>fprof</c> or
-    <c>eprof</c>.</p>
+      <item><c>cprof</c> is the most lightweight tool, but it only
+      provides execution counts on a function basis (for all processes,
+      not per process).</item>
+    </list>
 
-    <p><c>cover</c> provides execution counts per line per process,
-    with less overhead than <c>fprof</c>. Execution counts can
-    with some caution be used to locate potential performance bottlenecks.
-    The most lightweight tool is <c>cprof</c>, but it only provides execution
-    counts on a function basis (for all processes, not per process).</p>
+    <p>The tools are further described in
+    <seealso marker="#profiling_tools">Tools</seealso>.</p>
   </section>
 
   <section>
-    <title>Big systems</title>
-    <p>If you have a big system it might be interesting to run profiling
+    <title>Large Systems</title>
+    <p>For a large system, it can be interesting to run profiling
       on a simulated and limited scenario to start with. But bottlenecks
-      have a tendency to only appear or cause problems when
-      there are many things going on at the same time, and when there
-      are many nodes involved. Therefore it is desirable to also run
+      have a tendency to appear or cause problems only when
+      many things are going on at the same time, and when
+      many nodes are involved. Therefore, it is also desirable to run
       profiling in a system test plant on a real target system.</p>
-    <p>When your system is big you do not want to run the profiling
-      tools on the whole system. You want to concentrate on processes
-      and modules that you know are central and stand for a big part of the
-      execution.</p>
+
+    <p>For a large system, you do not want to run the profiling
+      tools on the whole system. Instead you want to concentrate on
+      central processes and modules, which contribute for a big part
+      of the execution.</p>
   </section>
 
   <section>
-    <title>What to look for</title>
-    <p>When analyzing the result file from the profiling activity
-      you should look for functions that are called many
+    <title>What to Look For</title>
+    <p>When analyzing the result file from the profiling activity,
+      look for functions that are called many
       times and have a long "own" execution time (time excluding calls
-      to other functions). Functions that just are called very
-      many times can also be interesting, as even small things can add
-      up to quite a bit if they are repeated often. Then you need to
-      ask yourself what can I do to reduce this time. Appropriate
-      types of questions to ask yourself are: </p>
+      to other functions). Functions that are called a lot of
+      times can also be interesting, as even small things can add
+      up to quite a bit if repeated often. Also
+      ask yourself what you can do to reduce this time. The following
+      are appropriate types of questions to ask yourself:</p>
+
     <list type="bulleted">
-      <item>Can I reduce the number of times the function is called?</item>
-      <item>Are there tests that can be run less often if I change
-       the order of tests?</item>
-      <item>Are there redundant tests that can be removed? </item>
-      <item>Is there some expression calculated giving the same result
-       each time? </item>
-      <item>Are there other ways of doing this that are equivalent and
+      <item>Is it possible to reduce the number of times the function
+      is called?</item>
+      <item>Can any test be run less often if the order of tests is
+      changed?</item>
+      <item>Can any redundant tests be removed?</item>
+      <item>Does any calculated expression give the same result
+       each time?</item>
+      <item>Are there other ways to do this that are equivalent and
        more efficient?</item>
-      <item>Can I use another internal data representation to make
-       things more efficient? </item>
+      <item>Can another internal data representation be used to make
+       things more efficient?</item>
     </list>
-    <p>These questions are not always trivial to answer. You might
-      need to do some benchmarks to back up your theory, to avoid
-      making things slower if your theory is wrong. See <seealso marker="#benchmark">benchmarking</seealso>.</p>
+
+    <p>These questions are not always trivial to answer. Some
+    benchmarks might be needed to back up your theory and to avoid
+      making things slower if your theory is wrong. For details, see
+    <seealso marker="#benchmark">Benchmarking</seealso>.</p>
   </section>
 
   <section>
     <title>Tools</title>
-
+    <marker id="profiling_tools"></marker>
     <section>
       <title>fprof</title>
-	  <p>
-		 <c>fprof</c> measures the execution time for each function,
-        both own time i.e how much time a function has used for its
-        own execution, and accumulated time i.e. including called
-        functions. The values are displayed per process. You also get
-        to know how many times each function has been
-        called. <c>fprof</c> is based on trace to file in order to
-        minimize runtime performance impact. Using fprof is just a
-		matter of calling a few library functions, see 
-		<seealso marker="tools:fprof">fprof</seealso> 
-		manual page under the application tools.<c> fprof</c> was introduced in
-		version R8 of Erlang/OTP.
-	</p>
+      <p><c>fprof</c> measures the execution time for each function,
+      both own time, that is, how much time a function has used for its
+      own execution, and accumulated time, that is, including called
+      functions. The values are displayed per process. You also get
+      to know how many times each function has been called.</p>
+
+      <p><c>fprof</c> is based on trace to file to minimize runtime
+      performance impact. Using <c>fprof</c> is just a matter of
+      calling a few library functions, see the
+      <seealso marker="tools:fprof">fprof</seealso> manual page in
+      <c>tools</c> .<c>fprof</c> was introduced in R8.</p>
     </section>
 
-	<section>
-		<title>eprof</title>
-		<p>
-			<c>eprof</c> is based on the Erlang trace_info BIFs. Eprof shows how much time has been used by
-			each process, and in which function calls this time has been
-			spent. Time is shown as percentage of total time and absolute time.
-			See <seealso marker="tools:eprof">eprof</seealso> for
-			additional information.
-		</p>
-	</section>
+    <section>
+      <title>eprof</title>
+      <p><c>eprof</c> is based on the Erlang <c>trace_info</c> BIFs.
+      <c>eprof</c> shows how much time has been used by each process,
+      and in which function calls this time has been spent. Time is
+      shown as percentage of total time and absolute time. For more
+      information, see the <seealso marker="tools:eprof">eprof</seealso>
+      manual page in <c>tools</c>.</p>
+    </section>
 
     <section>
       <title>cover</title>
-			<p>
-				<c>cover</c>'s primary use is coverage analysis to verify
-        test cases, making sure all relevant code is covered.
-        <c>cover</c> counts how many times each executable line of
-        code is executed when a program is run. This is done on a per
-        module basis. Of course this information can be used to
-        determine what code is run very frequently and could therefore
-        be subject for optimization. Using cover is just a matter of
-		calling a few library functions, see 
-		<seealso marker="tools:cover">cover</seealso> 
-		manual page under the application tools.</p>
+      <p>The primary use of <c>cover</c> is coverage analysis to verify
+      test cases, making sure that all relevant code is covered.
+      <c>cover</c> counts how many times each executable line of code
+      is executed when a program is run, on a per module basis.</p>
+      <p>Clearly, this information can be used to determine what
+      code is run very frequently and can therefore be subject for
+      optimization. Using <c>cover</c> is just a matter of calling a
+      few library functions, see the
+      <seealso marker="tools:cover">cover</seealso> manual page in
+      <c>tools</c>.</p>
     </section>
 
     <section>
       <title>cprof</title>
       <p><c>cprof</c> is something in between <c>fprof</c> and
-        <c>cover</c> regarding features. It counts how many times each
-        function is called when the program is run, on a per module
-        basis. <c>cprof</c> has a low performance degradation effect (versus
-        <c>fprof</c>) and does not need to recompile
-		any modules to profile (versus <c>cover</c>).
-		See <seealso marker="tools:cprof">cprof</seealso> manual page for additional
-		information.
-	</p>
+      <c>cover</c> regarding features. It counts how many times each
+      function is called when the program is run, on a per module
+      basis. <c>cprof</c> has a low performance degradation effect
+      (compared with <c>fprof</c>) and does not need to recompile
+      any modules to profile (compared with <c>cover</c>).
+      For more information, see the
+      <seealso marker="tools:cprof">cprof</seealso> manual page in
+      <c>tools</c>.</p>
     </section>
 
     <section>
-      <title>Tool summarization</title>
+      <title>Tool Summary</title>
       <table>
         <row>
-          <cell align="center" valign="middle">Tool</cell>
-          <cell align="center" valign="middle">Results</cell>
-          <cell align="center" valign="middle">Size of result</cell>
-          <cell align="center" valign="middle">Effects on program execution time</cell>
-          <cell align="center" valign="middle">Records number of calls</cell>
-          <cell align="center" valign="middle">Records Execution time</cell>
-          <cell align="center" valign="middle">Records called by</cell>
-          <cell align="center" valign="middle">Records garbage collection</cell>
+          <cell><em>Tool</em></cell>
+          <cell><em>Results</em></cell>
+          <cell><em>Size of Result</em></cell>
+          <cell><em>Effects on Program Execution Time</em></cell>
+          <cell><em>Records Number of Calls</em></cell>
+          <cell><em>Records Execution Time</em></cell>
+          <cell><em>Records Called by</em></cell>
+          <cell><em>Records Garbage Collection</em></cell>
         </row>
         <row>
-          <cell align="left" valign="middle"><c>fprof </c></cell>
-          <cell align="left" valign="middle">per process to screen/file </cell>
-          <cell align="left" valign="middle">large </cell>
-          <cell align="left" valign="middle">significant slowdown </cell>
-          <cell align="left" valign="middle">yes  </cell>
-          <cell align="left" valign="middle">total and own</cell>
-          <cell align="left" valign="middle">yes </cell>
-          <cell align="left" valign="middle">yes </cell>
+          <cell><c>fprof</c></cell>
+          <cell>Per process to screen/file</cell>
+          <cell>Large</cell>
+          <cell>Significant slowdown</cell>
+          <cell>Yes</cell>
+          <cell>Total and own</cell>
+          <cell>Yes</cell>
+          <cell>Yes</cell>
         </row>
         <row>
-          <cell align="left" valign="middle"><c>eprof </c></cell>
-          <cell align="left" valign="middle">per process/function to screen/file </cell>
-          <cell align="left" valign="middle">medium </cell>
-          <cell align="left" valign="middle">small slowdown </cell>
-          <cell align="left" valign="middle">yes </cell>
-          <cell align="left" valign="middle">only total </cell>
-          <cell align="left" valign="middle">no </cell>
-          <cell align="left" valign="middle">no </cell>
+          <cell><c>eprof</c></cell>
+          <cell>Per process/function to screen/file</cell>
+          <cell>Medium</cell>
+          <cell>Small slowdown</cell>
+          <cell>Yes</cell>
+          <cell>Only total</cell>
+          <cell>No</cell>
+          <cell>No</cell>
         </row>
         <row>
-          <cell align="left" valign="middle"><c>cover </c></cell>
-          <cell align="left" valign="middle">per module to screen/file</cell>
-          <cell align="left" valign="middle">small </cell>
-          <cell align="left" valign="middle">moderate slowdown</cell>
-          <cell align="left" valign="middle">yes, per line  </cell>
-          <cell align="left" valign="middle">no </cell>
-          <cell align="left" valign="middle">no </cell>
-          <cell align="left" valign="middle">no </cell>
+          <cell><c>cover</c></cell>
+          <cell>Per module to screen/file</cell>
+          <cell>Small</cell>
+          <cell>Moderate slowdown</cell>
+          <cell>Yes, per line</cell>
+          <cell>No</cell>
+          <cell>No</cell>
+          <cell>No</cell>
         </row>
         <row>
-          <cell align="left" valign="middle"><c>cprof </c></cell>
-          <cell align="left" valign="middle">per module to caller</cell>
-          <cell align="left" valign="middle">small </cell>
-          <cell align="left" valign="middle">small slowdown </cell>
-          <cell align="left" valign="middle">yes </cell>
-          <cell align="left" valign="middle">no </cell>
-          <cell align="left" valign="middle">no </cell>
-          <cell align="left" valign="middle">no </cell>
+          <cell><c>cprof</c></cell>
+          <cell>Per module to caller</cell>
+          <cell>Small</cell>
+          <cell>Small slowdown</cell>
+          <cell>Yes</cell>
+          <cell>No</cell>
+          <cell>No</cell>
+          <cell>No</cell>
         </row>
-        <tcaption></tcaption>
+        <tcaption>Tool Summary</tcaption>
       </table>
     </section>
   </section>
@@ -226,49 +233,51 @@
     implementation of a given algorithm or function is the fastest.
     Benchmarking is far from an exact science. Today's operating systems
     generally run background tasks that are difficult to turn off.
-    Caches and multiple CPU cores doesn't make it any easier.
-    It would be best to run Unix-computers in single-user mode when
+    Caches and multiple CPU cores does not facilitate benchmarking.
+    It would be best to run UNIX computers in single-user mode when
     benchmarking, but that is inconvenient to say the least for casual
     testing.</p>
     
     <p>Benchmarks can measure wall-clock time or CPU time.</p>
 
-    <p><seealso marker="stdlib:timer#tc/3">timer:tc/3</seealso> measures
+    <list type="bulleted">
+    <item><seealso marker="stdlib:timer#tc/3">timer:tc/3</seealso> measures
     wall-clock time. The advantage with wall-clock time is that I/O,
-    swapping, and other activities in the operating-system kernel are
+    swapping, and other activities in the operating system kernel are
     included in the measurements. The disadvantage is that the
-    the measurements will vary wildly. Usually it is best to run the
-    benchmark several times and note the shortest time - that time should
+    measurements vary a lot. Usually it is best to run the
+    benchmark several times and note the shortest time, which is to
     be the minimum time that is possible to achieve under the best of
-    circumstances.</p>
+    circumstances.</item>
 
-    <p><seealso marker="erts:erlang#statistics/1">statistics/1</seealso>
-    with the argument <c>runtime</c> measures CPU time spent in the Erlang
-    virtual machine. The advantage is that the results are more
+    <item><seealso marker="erts:erlang#statistics/1">statistics/1</seealso>
+    with argument <c>runtime</c> measures CPU time spent in the Erlang
+    virtual machine. The advantage with CPU time is that the results are more
     consistent from run to run. The disadvantage is that the time
     spent in the operating system kernel (such as swapping and I/O)
-    are not included. Therefore, measuring CPU time is misleading if
-    any I/O (file or socket) is involved.</p>
+    is not included. Therefore, measuring CPU time is misleading if
+    any I/O (file or socket) is involved.</item>
+    </list>
 
     <p>It is probably a good idea to do both wall-clock measurements and
     CPU time measurements.</p>
 
-    <p>Some additional advice:</p>
+    <p>Some final advice:</p>
 
     <list type="bulleted">
-    <item>The granularity of both types of measurement could be quite
-    high so you should make sure that each individual measurement
+    <item>The granularity of both measurement types can be high.
+    Therefore, ensure that each individual measurement
     lasts for at least several seconds.</item>
 
-    <item>To make the test fair, each new test run should run in its own,
+    <item>To make the test fair, each new test run is to run in its own,
     newly created Erlang process. Otherwise, if all tests run in the
-    same process, the later tests would start out with larger heap sizes
-    and therefore probably do less garbage collections. You could
-    also consider restarting the Erlang emulator between each test.</item>
+    same process, the later tests start out with larger heap sizes
+    and therefore probably do fewer garbage collections.
+    Also consider restarting the Erlang emulator between each test.</item>
 
     <item>Do not assume that the fastest implementation of a given algorithm
-    on computer architecture X also is the fastest on computer architecture Y.</item>
-
+    on computer architecture X is also the fastest on computer architecture
+    Y.</item>
     </list>
   </section>
 </chapter>
diff --git a/system/doc/efficiency_guide/tablesDatabases.xml b/system/doc/efficiency_guide/tablesDatabases.xml
index 94c921fa1c..215c2afa1f 100644
--- a/system/doc/efficiency_guide/tablesDatabases.xml
+++ b/system/doc/efficiency_guide/tablesDatabases.xml
@@ -18,10 +18,9 @@
       basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
       the License for the specific language governing rights and limitations
       under the License.
-    
     </legalnotice>
 
-    <title>Tables and databases</title>
+    <title>Tables and Databases</title>
     <prepared>Ingela Anderton</prepared>
     <docno></docno>
     <date>2001-08-07</date>
@@ -30,46 +29,45 @@
   </header>
 
   <section>
-    <title>Ets, Dets and Mnesia</title>
+    <title>Ets, Dets, and Mnesia</title>
     <p>Every example using Ets has a corresponding example in
-      Mnesia. In general all Ets examples also apply to Dets tables.</p>
+      Mnesia. In general, all Ets examples also apply to Dets tables.</p>
 
     <section>
-      <title>Select/Match operations</title>
-      <p>Select/Match operations on Ets and Mnesia tables can become
+      <title>Select/Match Operations</title>
+      <p>Select/match operations on Ets and Mnesia tables can become
         very expensive operations. They usually need to scan the complete
-        table. You should try to structure your
-        data so that you minimize the need for select/match
-        operations. However, if you really need a select/match operation,
-	it will still be more efficient than using <c>tab2list</c>.
-	Examples of this and also of ways to avoid select/match will be provided in
-        some of the following sections. The functions
-        <c>ets:select/2</c> and <c>mnesia:select/3</c> should be preferred over
-        <c>ets:match/2</c>,<c>ets:match_object/2</c>, and <c>mnesia:match_object/3</c>.</p>
-      <note>
-        <p>There are exceptions when the complete table is not
-          scanned, for instance if part of the key is bound when searching an
-	  <c>ordered_set</c> table, or if it is a Mnesia
-          table and there is a secondary index on the field that is
-          selected/matched. If the key is fully bound there will, of course, be
-          no point in doing a select/match, unless you have a bag table and
-          you are only interested in a sub-set of the elements with
-          the specific key.</p>
-      </note>
-      <p>When creating a record to be used in a select/match operation you
-        want most of the fields to have the value '_'. The easiest and fastest way
-	to do that is as follows:</p>
+        table. Try to structure the data to minimize the need for select/match
+        operations. However, if you require a select/match operation,
+	it is still more efficient than using <c>tab2list</c>.
+	Examples of this and of how to avoid select/match are provided in
+        the following sections. The functions
+        <c>ets:select/2</c> and <c>mnesia:select/3</c> are to be preferred
+	over <c>ets:match/2</c>, <c>ets:match_object/2</c>, and
+      <c>mnesia:match_object/3</c>.</p>
+      <p>In some circumstances, the select/match operations do not need
+        to scan the complete table.
+	For example, if part of the key is bound when searching an
+	<c>ordered_set</c> table, or if it is a Mnesia
+	table and there is a secondary index on the field that is
+	selected/matched. If the key is fully bound, there is
+	no point in doing a select/match, unless you have a bag table
+	and are only interested in a subset of the elements with
+        the specific key.</p>
+      <p>When creating a record to be used in a select/match operation, you
+        want most of the fields to have the value "_". The easiest and
+	fastest way to do that is as follows:</p>
       <pre>
 #person{age = 42, _ = '_'}. </pre>
     </section>
 
     <section>
-      <title>Deleting an element</title>
-      <p>The delete operation is considered
+      <title>Deleting an Element</title>
+      <p>The <c>delete</c> operation is considered
         successful if the element was not present in the table. Hence
         all attempts to check that the element is present in the
         Ets/Mnesia table before deletion are unnecessary. Here follows
-        an example for Ets tables.</p>
+        an example for Ets tables:</p>
       <p><em>DO</em></p>
       <pre>
 ...
@@ -88,14 +86,16 @@ end,
     </section>
 
     <section>
-      <title>Data fetching</title>
-      <p>Do not fetch data that you already have! Consider that you
-        have a module that handles the abstract data type Person. You
-        export the interface function <c>print_person/1</c> that uses the internal functions
-        <c>print_name/1</c>, <c>print_age/1</c>, <c>print_occupation/1</c>.</p>
+      <title>Fetching Data</title>
+      <p>Do not fetch data that you already have.</p>
+      <p>Consider that you have a module that handles the abstract data
+      type <c>Person</c>. You export the interface function
+      <c>print_person/1</c>, which uses the internal functions
+      <c>print_name/1</c>, <c>print_age/1</c>, and
+      <c>print_occupation/1</c>.</p>
       <note>
-        <p>If the functions <c>print_name/1</c> and so on, had been interface
-          functions the matter comes in to a whole new light, as you
+        <p>If the function <c>print_name/1</c>, and so on, had been interface
+          functions, the situation would have been different, as you
           do not want the user of the interface to know about the
           internal data representation. </p>
       </note>
@@ -136,7 +136,7 @@ print_person(PersonId) ->
             io:format("No person with ID = ~p~n", [PersonID])
     end.
 
-%%% Internal functions
+%%% Internal functionss
 print_name(PersonID) -> 
     [Person] = ets:lookup(person, PersonId),
     io:format("No person ~p~n", [Person#person.name]).
@@ -151,31 +151,31 @@ print_occupation(PersonID) ->
     </section>
 
     <section>
-      <title>Non-persistent data storage </title>
+      <title>Non-Persistent Database Storage</title>
       <p>For non-persistent database storage, prefer Ets tables over
-        Mnesia local_content tables. Even the Mnesia <c>dirty_write</c>
+        Mnesia <c>local_content</c> tables. Even the Mnesia <c>dirty_write</c>
         operations carry a fixed overhead compared to Ets writes.
         Mnesia must check if the table is replicated or has indices,
         this involves at least one Ets lookup for each
-        <c>dirty_write</c>. Thus, Ets writes will always be faster than
+        <c>dirty_write</c>. Thus, Ets writes is always faster than
         Mnesia writes.</p>
     </section>
 
     <section>
       <title>tab2list</title>
-      <p>Assume we have an Ets-table, which uses <c>idno</c> as key,
-        and contains:</p>
+      <p>Assuming an Ets table that uses <c>idno</c> as key
+        and contains the following:</p>
       <pre>
 [#person{idno = 1, name = "Adam",  age = 31, occupation = "mailman"},
  #person{idno = 2, name = "Bryan", age = 31, occupation = "cashier"},
  #person{idno = 3, name = "Bryan", age = 35, occupation = "banker"},
  #person{idno = 4, name = "Carl",  age = 25, occupation = "mailman"}]</pre>
-      <p>If we <em>must</em> return all data stored in the Ets-table we
-        can use <c>ets:tab2list/1</c>.  However, usually we are only
+      <p>If you <em>must</em> return all data stored in the Ets table, you
+        can use <c>ets:tab2list/1</c>.  However, usually you are only
         interested in a subset of the information in which case
-        <c>ets:tab2list/1</c> is expensive. If we only want to extract
-        one field from each record, e.g., the age of every person, we
-        should use:</p>
+        <c>ets:tab2list/1</c> is expensive. If you only want to extract
+        one field from each record, for example, the age of every person,
+        then:</p>
       <p><em>DO</em></p>
       <pre>
 ...
@@ -192,8 +192,8 @@ ets:select(Tab,[{ #person{idno='_',
 TabList = ets:tab2list(Tab),
 lists:map(fun(X) -> X#person.age end, TabList),
 ...</pre>
-      <p>If we are only interested in the age of all persons named
-        Bryan, we should:</p>
+      <p>If you are only interested in the age of all persons named
+        "Bryan", then:</p>
       <p><em>DO</em></p>
       <pre>
 ...
@@ -224,8 +224,8 @@ BryanList = lists:filter(fun(X) -> X#person.name == "Bryan" end,
                          TabList),
 lists:map(fun(X) -> X#person.age end, BryanList),
 ...</pre>
-      <p>If we need all information stored in the Ets table about
-        persons named Bryan we should:</p>
+      <p>If you need all information stored in the Ets table about
+        persons named "Bryan", then:</p>
       <p><em>DO</em></p>
       <pre>
 ...
@@ -243,60 +243,60 @@ lists:filter(fun(X) -> X#person.name == "Bryan" end, TabList),
     </section>
 
     <section>
-      <title>Ordered_set tables</title>
-      <p>If the data in the table should be accessed so that the order
+      <title>Ordered_set Tables</title>
+      <p>If the data in the table is to be accessed so that the order
         of the keys in the table is significant, the table type
-        <c>ordered_set</c> could be used instead of the more usual
+        <c>ordered_set</c> can be used instead of the more usual
         <c>set</c> table type. An <c>ordered_set</c> is always
-        traversed in Erlang term order with regard to the key field
-        so that return values from functions such as <c>select</c>,
+        traversed in Erlang term order regarding the key field
+        so that the return values from functions such as <c>select</c>,
         <c>match_object</c>, and <c>foldl</c> are ordered by the key
         values. Traversing an <c>ordered_set</c> with the <c>first</c> and
         <c>next</c> operations also returns the keys ordered.</p>
       <note>
         <p>An <c>ordered_set</c> only guarantees that
-          objects are processed in <em>key</em> order. Results from functions as 
-          <c>ets:select/2</c> appear in the <em>key</em> order even if
+          objects are processed in <em>key</em> order.
+	  Results from functions such as
+          <c>ets:select/2</c> appear in <em>key</em> order even if
           the key is not included in the result.</p>
       </note>
     </section>
   </section>
 
   <section>
-    <title>Ets specific</title>
+    <title>Ets-Specific</title>
 
     <section>
-      <title>Utilizing the keys of the Ets table</title>
-      <p>An Ets table is a single key table (either a hash table or a
-        tree ordered by the key) and should be used as one. In other
+      <title>Using Keys of Ets Table</title>
+      <p>An Ets table is a single-key table (either a hash table or a
+        tree ordered by the key) and is to be used as one. In other
         words, use the key to look up things whenever possible. A
-        lookup by a known key in a set Ets table is constant and for a
-        ordered_set Ets table it is O(logN). A key lookup is always
+        lookup by a known key in a <c>set</c> Ets table is constant and for
+        an <c>ordered_set</c> Ets table it is O(logN). A key lookup is always
         preferable to a call where the whole table has to be
-        scanned. In the examples above, the field <c>idno</c> is the
+        scanned. In the previous examples, the field <c>idno</c> is the
         key of the table and all lookups where only the name is known
-        will result in a complete scan of the (possibly large) table
+        result in a complete scan of the (possibly large) table
         for a matching result.</p>
       <p>A simple solution would be to use the <c>name</c> field as
         the key instead of the <c>idno</c> field, but that would cause
-        problems if the names were not unique. A more general solution
-        would be to create a second table with <c>name</c> as key and
-        <c>idno</c> as data, i.e. to index (invert) the table with regards
-        to the <c>name</c> field. The second table would of course have to be
-        kept consistent with the master table. Mnesia could do this
-        for you, but a home brew index table could be very efficient
+        problems if the names were not unique. A more general solution would
+        be to create a second table with <c>name</c> as key and
+        <c>idno</c> as data, that is, to index (invert) the table regarding
+        the <c>name</c> field. Clearly, the second table would have to be
+        kept consistent with the master table. Mnesia can do this
+        for you, but a home brew index table can be very efficient
         compared to the overhead involved in using Mnesia.</p>
       <p>An index table for the table in the previous examples would
-        have to be a bag (as keys would appear more than once) and could
+        have to be a bag (as keys would appear more than once) and can
         have the following contents:</p>
       <pre>
- 
 [#index_entry{name="Adam", idno=1},
  #index_entry{name="Bryan", idno=2},
  #index_entry{name="Bryan", idno=3},
  #index_entry{name="Carl", idno=4}]</pre>
-      <p>Given this index table a lookup of the <c>age</c> fields for
-        all persons named "Bryan" could be done like this:</p>
+      <p>Given this index table, a lookup of the <c>age</c> fields for
+        all persons named "Bryan" can be done as follows:</p>
       <pre>
 ...
 MatchingIDs = ets:lookup(IndexTable,"Bryan"),
@@ -306,30 +306,31 @@ lists:map(fun(#index_entry{idno = ID}) ->
           end,
           MatchingIDs),
 ...</pre>
-      <p>Note that the code above never uses <c>ets:match/2</c> but
-        instead utilizes the <c>ets:lookup/2</c> call. The
+      <p>Notice that this code never uses <c>ets:match/2</c> but
+        instead uses the <c>ets:lookup/2</c> call. The
         <c>lists:map/2</c> call is only used to traverse the <c>idno</c>s
-        matching the name "Bryan" in the table; therefore the number of lookups
+        matching the name "Bryan" in the table; thus the number of lookups
         in the master table is minimized.</p>
       <p>Keeping an index table introduces some overhead when
-        inserting records in the table, therefore the number of operations
-        gained from the table has to be weighted against the number of
-        operations inserting objects in the table. However, note that the gain when
-        the key can be used to lookup elements is significant.</p>
+        inserting records in the table. The number of operations gained
+        from the table must therefore be compared against the number of
+        operations inserting objects in the table. However, notice that the
+	gain is significant when the key can be used to lookup elements.</p>
     </section>
   </section>
 
   <section>
-    <title>Mnesia specific</title>
+    <title>Mnesia-Specific</title>
 
     <section>
-      <title>Secondary index</title>
+      <title>Secondary Index</title>
       <p>If you frequently do a lookup on a field that is not the
-        key of the table, you will lose performance using
-        "mnesia:select/match_object" as this function will traverse the
-        whole table. You may create a secondary index instead and
+        key of the table, you lose performance using
+        "mnesia:select/match_object" as this function traverses the
+        whole table. You can create a secondary index instead and
         use "mnesia:index_read" to get faster access, however this
-        will require more memory. Example:</p>
+        requires more memory.</p>
+	<p><em>Example</em></p>
       <pre>
 -record(person, {idno, name, age, occupation}).
         ...
@@ -347,14 +348,15 @@ PersonsAge42 =
 
     <section>
       <title>Transactions </title>
-      <p>Transactions is a way to guarantee that the distributed
+      <p>Using transactions is a way to guarantee that the distributed
         Mnesia database remains consistent, even when many different
-        processes update it in parallel. However if you have
-        real time requirements it is recommended to use dirty
-        operations instead of transactions. When using the dirty
-        operations you lose the consistency guarantee, this is usually
+        processes update it in parallel. However, if you have
+        real-time requirements it is recommended to use <c>dirty</c>
+        operations instead of transactions. When using <c>dirty</c>
+        operations, you lose the consistency guarantee; this is usually
         solved by only letting one process update the table. Other
-        processes have to send update requests to that process.</p>
+        processes must send update requests to that process.</p>
+	<p><em>Example</em></p>
       <pre>
 ...
 % Using transaction
diff --git a/system/doc/embedded/embedded_nt.xml b/system/doc/embedded/embedded_nt.xml
index 530e3663e4..2e3b32eb84 100644
--- a/system/doc/embedded/embedded_nt.xml
+++ b/system/doc/embedded/embedded_nt.xml
@@ -31,54 +31,47 @@
     <rev>PA2</rev>
     <file>embedded_nt.xml</file>
   </header>
-  <p>This chapter describes the OS specific parts of OTP which relate
-    to Windows NT.
-    </p>
+  <marker id="windows nt"></marker>
+  <p>This section describes the operating system-specific parts of OTP
+    that relate to Windows NT.</p>
+  <p>A normal installation of Windows NT 4.0, with Service Pack 4 or
+    later, is required for an embedded Windows NT running OTP.</p>
 
   <section>
-    <title>Introduction</title>
-    <p>A normal installation of NT 4.0, with service pack 4 or later, 
-      is required for an embedded Windows NT running OTP.</p>
+    <title>Memory Use</title>
+    <p>RAM memory of 96 MB is recommended to run OTP on Windows NT.
+      A system with less than 64 MB of RAM is not recommended.</p>
   </section>
 
   <section>
-    <title>Memory Usage</title>
-    <p>RAM memory of 96 MBytes is recommended to run OTP on NT.
-      A system with less than 64 Mbytes of RAM is not recommended.</p>
+    <title>Disk Space Use</title>
+    <p>A minimum Windows NT installation with networking needs 250 MB,
+      and an extra 130 MB for the swap file.</p>
   </section>
 
   <section>
-    <title>Disk Space Usage</title>
-    <p>A minimum NT installation with networking needs 250 MB, and 
-      an additional 130 MB for the swap file. </p>
-  </section>
-
-  <section>
-    <title>Installation</title>
-    <p>Normal NT installation is performed. No additional application   
-      programs are needed, such as Internet explorer or web server. Networking
-      with TCP/IP is required.      <br></br>
-
-      Service pack 4 or later must be installed.</p>
+    <title>Installing an Embedded System</title>
+    <p>Normal Windows NT installation is performed. No additional
+      application programs are needed, such as Internet Explorer or
+      web server. Networking with TCP/IP is required.</p>
+    <p>Service Pack 4 or later must be installed.</p>
 
     <section>
       <title>Hardware Watchdog</title>
-      <p>For Windows NT running on standard PCs with ISA and/or PCI bus
-        there is a possibility to install an extension card with a hardware
-        watchdog.
-        </p>
-      <p>See also the <c>heart(3)</c> reference manual page in
-        <em>Kernel</em>.
-        </p>
+      <p>For Windows NT running on standard PCs with ISA and/or PCI bus,
+        an extension card with a hardware watchdog can be installed.</p>
+      <p>For more information, see the <c>heart(3)</c> manual page in
+        <c>kernel</c>.</p>
     </section>
   </section>
 
   <section>
     <title>Starting Erlang</title>
-    <p>On an embedded system, the <c>erlsrv</c> module should be used, 
-      to install the erlang process as a Windows system service. 
-      This service can start
-      after NT has booted. See documentation for <c>erlsrv</c>.</p>
+    <p>On an embedded system, the <c>erlsrv</c> module is to be used
+      to install the Erlang process as a Windows system service.
+      This service can start after Windows NT has booted.</p>
+    <p>For more information, see the <c>erlsrv</c> manual page
+      in <c>erts</c>.</p>
   </section>
 </chapter>
 
diff --git a/system/doc/embedded/embedded_solaris.xml b/system/doc/embedded/embedded_solaris.xml
index cab3437725..1861436a8e 100644
--- a/system/doc/embedded/embedded_solaris.xml
+++ b/system/doc/embedded/embedded_solaris.xml
@@ -31,125 +31,97 @@
     <rev>B</rev>
     <file>embedded_solaris.xml</file>
   </header>
-  <p>This chapter describes the OS specific parts of OTP which relate
-    to Solaris.
-    </p>
+  <marker id="embedded solaris"></marker>
+
+  <p>This section describes the operating system-specific parts
+  of OTP that relate to Solaris.</p>
 
   <section>
-    <title>Memory Usage</title>
-    <p>Solaris takes about 17 Mbyte of RAM on a system with 64 Mbyte of
-      total RAM. This leaves about 47 Mbyte for the applications. If
-      the system utilizes swapping, these figures cannot be improved
+    <title>Memory Use</title>
+    <p>Solaris takes about 17 MB of RAM on a system with 64 MB of
+      total RAM. This leaves about 47 MB for the applications. If
+      the system uses swapping, these figures cannot be improved
       because unnecessary daemon processes are swapped out. However,
       if swapping is disabled, or if the swap space is of limited
       resource in the system, it becomes necessary to kill off
-      unnecessary daemon processes.
-      </p>
+      unnecessary daemon processes.</p>
   </section>
 
   <section>
-    <title>Disk Space Usage</title>
+    <title>Disk Space Use</title>
     <p>The disk space required by Solaris can be minimized by using the
-      Core User support installation. It requires about 80 Mbyte of
+      Core User support installation. It requires about 80 MB of
       disk space. This installs only the minimum software required to
-      boot and run Solaris.  The disk space can be further reduced by
+      boot and run Solaris. The disk space can be further reduced by
       deleting unnecessary individual files. However, unless disk
       space is a critical resource the effort required and the risks
-      involved may not be justified.</p>
+      involved cannot be justified.</p>
   </section>
 
   <section>
-    <title>Installation</title>
+    <title>Installing an Embedded System</title>
     <p>This section is about installing an embedded system.
-      The following topics are considered,
-      </p>
+      The following topics are considered:
+    </p>
     <list type="bulleted">
-      <item>
-        <p>Creation of user and installation directory,</p>
-      </item>
-      <item>
-        <p>Installation of embedded system,</p>
-      </item>
-      <item>
-        <p>Configuration for automatic start at reboot,</p>
-      </item>
-      <item>
-        <p>Making a hardware watchdog available,</p>
-      </item>
-      <item>
-        <p>Changing permission for reboot,</p>
-      </item>
-      <item>
-        <p>Patches,</p>
-      </item>
-      <item>
-        <p>Configuration of the OS_Mon application.</p>
-      </item>
+      <item>Creating user and installation directory</item>
+      <item>Installing an embedded system</item>
+      <item>Configuring automatic start at boot</item>
+      <item>Making a hardware watchdog available</item>
+      <item>Changing permission for reboot</item>
+      <item>Setting TERM environment variable</item>
+      <item>Adding patches</item>
+      <item>Installing module os_sup in application os_mon</item>
     </list>
-    <p>Several of the procedures described below require expert
-      knowledge of the Solaris 2 operating system. For most of them
-      super user privilege is needed.
-      </p>
+    <p>Several of the procedures in this section require expert
+      knowledge of the Solaris operating system. For most of them
+      super user privilege is needed.</p>
 
     <section>
-      <title>Creation of User and Installation Directory</title>
-      <p>It is recommended that the Embedded Environment is run by an
-        ordinary user, i.e. a user who does not have super user
-        privileges.
-        </p>
-      <p>Throughout this section we assume that the user name is
-        <c>otpuser</c>, and that the home directory of that user is,
-        </p>
+      <title>Creating User and Installation Directory</title>
+      <p>It is recommended that the embedded environment is run by an
+        ordinary user, that is, a user who does not have super user
+        privileges.</p>
+      <p>In this section, it is assumed that the username is
+        <c>otpuser</c> and that the home directory of that user is:</p>
       <pre>
         /export/home/otpuser</pre>
-      <p>Furthermore, we assume that in the home directory of
+      <p>It is also assumed that in the home directory of
         <c>otpuser</c>, there is a directory named <c>otp</c>, the
-        full path of which is,
-        </p>
+        full path of which is:</p>
       <pre>
         /export/home/otpuser/otp</pre>
       <p>This directory is the <em>installation directory</em> of the
-        Embedded Environment.
-        </p>
+        embedded environment.</p>
     </section>
 
     <section>
-      <title>Installation of an Embedded System</title>
-      <p>The procedure for installation of an embedded system does
-        not differ from that of an ordinary system (see the
-        <em>Installation Guide</em>),
-        except for the following:
-        </p>
+      <title>Installing an Embedded System</title>
+      <p>The procedure for installing an embedded system
+        is the same as for an ordinary system (see
+	Installation Guide), except for the following:</p>
       <list type="bulleted">
-        <item>
-          <p>the (compressed) tape archive file should be
-            extracted in the installation directory as defined above,
-            and,</p>
-        </item>
-        <item>
-          <p>there is no need to link the start script to a
-            standard directory like <c>/usr/local/bin</c>.</p>
-        </item>
+        <item>The (compressed) tape archive file is to be extracted in
+	the installation directory defined above.</item>
+        <item>It is not needed to link the start script to a standard
+	directory like <c>/usr/local/bin</c>.</item>
       </list>
     </section>
 
     <section>
-      <title>Configuration for Automatic Start at Boot</title>
-      <p>A true embedded system has to start when the system
-        boots. This section accounts for the necessary configurations
-        needed to achieve that.
-        </p>
-      <p>The embedded system and all the applications will start
-        automatically if the script file shown below is added to the
-        <c>/etc/rc3.d</c> directory.  The file must be owned and
-        readable by <c>root</c>, and its name cannot be arbitrarily
-        assigned. The following name is recommended,
-        </p>
+      <title>Configuring Automatic Start at Boot</title>
+      <p>A true embedded system must start when the system boots.
+        This section accounts for the necessary configurations
+        needed to achieve that.</p>
+      <p>The embedded system and all the applications start
+        automatically if the script file shown below is added to
+        directory <c>/etc/rc3.d</c>. The file must be owned and
+        readable by <c>root</c>. Its name cannot be arbitrarily
+        assigned; the following name is recommended:</p>
       <pre>
         S75otp.system</pre>
-      <p>For further details on initialization (and termination)
-        scripts, and naming thereof, see the Solaris documentation.
-        </p>
+      <p>For more details on initialization (and termination)
+        scripts, and naming thereof, see the Solaris documentation.</p>
       <pre>
 #!/bin/sh
 #  
@@ -187,386 +159,333 @@ case "$1" in
         echo "Usage: $0 { start | stop }"
         ;;
 esac</pre>
-      <p>The file <c>/export/home/otpuser/otp/bin/start</c> referred to
-        in the above script, is precisely the script <c>start</c>
-        described in the section <em>Starting Erlang</em> below. The
+      <p>File <c>/export/home/otpuser/otp/bin/start</c> referred to
+        in the above script is precisely the <c>start</c> script
+        described in <em>Starting Erlang</em>. The
         script variable <c>OTP_ROOT</c> in that <c>start</c> script
-        corresponds to the example path
-        </p>
+        corresponds to the following example path used in this
+	section:</p>
       <pre>
         /export/home/otpuser/otp</pre>
-      <p>used in this section. The <c>start</c> script should be edited
-        accordingly.
-        </p>
-      <p>Use of the <c>killproc</c> procedure in the above script could
-        be combined with a call to <c>erl_call</c>, e.g.
-        </p>
+      <p>The <c>start</c> script is to be edited accordingly.</p>
+      <p>Use of the <c>killproc</c> procedure in the above script can
+        be combined with a call to <c>erl_call</c>, for example:</p>
       <pre>
         $SOME_PATH/erl_call -n Node init stop</pre>
-      <p>In order to take Erlang down gracefully see the
-        <c>erl_call(1)</c> reference manual page for further details
-        on the use of <c>erl_call</c>.  That however requires that
-        Erlang runs as a distributed node which is not always the
-        case.
-        </p>
-      <p>The <c>killproc</c> procedure should not be removed: the
+      <p>To take Erlang down gracefully, see the <c>erl_call(1)</c>
+        manual page in <c>erl_interface</c> for details on the use
+	of <c>erl_call</c>. However,
+	that requires that Erlang runs as a distributed node, which is
+        not always the case.</p>
+      <p>The <c>killproc</c> procedure is not to be removed. The
         purpose is here to move from run level 3 (multi-user mode with
         networking resources) to run level 2 (multi-user mode without
-        such resources), in which Erlang should not run.
-        </p>
+        such resources), in which Erlang is not to run.</p>
     </section>
 
     <section>
-      <title>Hardware Watchdog</title>
+      <title>Making Hardware Watchdog Available</title>
       <p>For Solaris running on VME boards from Force Computers,
-        there is a possibility to activate the onboard hardware
-        watchdog, provided a VME bus driver is added to the operating
-        system (see also <em>Installation Problems</em> below).
-        </p>
-      <p>See also the <c>heart(3)</c> reference manual page in
-        <em>Kernel</em>.
-        </p>
+        the onboard hardware watchdog can be activated,
+	provided a VME bus driver is added to the operating system
+        (see also Installation Problems).</p>
+      <p>See also the <c>heart(3)</c> manual page in <c>kernel</c>.</p>
     </section>
 
     <section>
       <title>Changing Permissions for Reboot</title>
       <p>If the <c>HEART_COMMAND</c> environment variable is to be set
-        in the <c>start</c> script in the section, <em>Starting Erlang</em>, and if the value shall be set to the
-        path of the Solaris <c>reboot</c> command, i.e.
-        </p>
+        in the <c>start</c> script in
+	<em>Starting Erlang</em>, and if the value is to be set to the
+        path of the Solaris <c>reboot</c> command, that is:</p>
       <pre>
         HEART_COMMAND=/usr/sbin/reboot</pre>
-      <p>the ownership and file permissions for <c>/usr/sbin/reboot</c>
-        must be changed as follows,
-        </p>
+      <p>then the ownership and file permissions for
+      <c>/usr/sbin/reboot</c> must be changed as follows:</p>
       <pre>
         chown 0 /usr/sbin/reboot
         chmod 4755 /usr/sbin/reboot</pre>
-      <p>See also the <c>heart(3)</c> reference manual page in
-        <em>Kernel</em>.
-        </p>
+      <p>See also the <c>heart(3)</c> manual page in <c>kernel</c>.</p>
     </section>
 
     <section>
-      <title>The TERM Environment Variable</title>
-      <p>When the Erlang runtime system is automatically started from the
-        <c>S75otp.system</c> script the <c>TERM</c> environment
-        variable has to be set. The following is a minimal setting,
-        </p>
+      <title>Setting TERM Environment Variable</title>
+      <p>When the Erlang runtime system is automatically started from
+        the <c>S75otp.system</c> script, the <c>TERM</c> environment
+        variable must be set. The following is a minimal setting:</p>
       <pre>
         TERM=sun</pre>
-      <p>which should be added to the <c>start</c> script described in
-        the section.
-        </p>
+      <p>This is to be added to the <c>start</c> script.</p>
     </section>
 
     <section>
-      <title>Patches</title>
+      <title>Adding Patches</title>
       <p>For proper functioning of flushing file system data to disk on
-        Solaris 2.5.1, the version specific patch with number
-        103640-02 must be added to the operating system. There may be
-        other patches needed, see the release README file
-        <c><![CDATA[<ERL_INSTALL_DIR>/README]]></c>.
-        </p>
+        Solaris 2.5.1, the version-specific patch with number
+        103640-02 must be added to the operating system. Other
+	patches might be needed, see the release README file
+        <c><![CDATA[<ERL_INSTALL_DIR>/README]]></c>.</p>
     </section>
 
     <section>
-      <title>Installation of Module os_sup in Application OS_Mon</title>
+      <title>Installing Module os_sup in Application os_mon</title>
       <p>The following four installation procedures require super user
-        privilege.
-        </p>
-
-      <section>
-        <title>Installation</title>
-        <list type="ordered">
-          <item>
-            <p><em>Make a copy the Solaris standard configuration file for syslogd.</em></p>
-            <list type="bulleted">
-              <item>
-                <p>Make a copy the Solaris standard configuration
-                  file for syslogd.  This file is usually named
-                  <c>syslog.conf</c> and found in the <c>/etc</c>
-                  directory.</p>
-              </item>
-              <item>
-                <p>The file name of the copy must be
-                  <c>syslog.conf.ORIG</c> but the directory location
-                  is optional. Usually it is <c>/etc</c>.
-                  </p>
-                <p>A simple way to do this is to issue the command</p>
-                <code type="none">
+        privilege:</p>
+
+	<section>
+	  <title>Installation</title>
+	  <list type="bulleted">
+	    <item><em>Make a copy of the Solaris standard configuration
+	    file for <c>syslogd</c>:</em>
+	    <list type="bulleted">
+	      <item>Make a copy of the Solaris standard configuration
+	      file for <c>syslogd</c>. This file is usually named
+	      <c>syslog.conf</c> and found in directory <c>/etc</c>.</item>
+              <item>The filename of the copy must be <c>syslog.conf.ORIG</c>.
+	      The directory location is optional; usually it is <c>/etc</c>.
+	      A simple way to do this is to issue the following command:
+	      <code type="none">
 cp /etc/syslog.conf /etc/syslog.conf.ORIG</code>
               </item>
-            </list>
-          </item>
-          <item>
-            <p><em>Make an Erlang specific configuration file for syslogd.</em></p>
-            <list type="bulleted">
-              <item>
-                <p>Make an edited copy of the back-up copy previously
-                  made.</p>
-              </item>
-              <item>
-                <p>The file name must be <c>syslog.conf.OTP</c> and the
-                  path must be the same as the back-up copy.</p>
-              </item>
-              <item>
-                <p>The format of the configuration file is found in the
-                  man page for <c>syslog.conf(5)</c>, by issuing the
-                  command <c>man syslog.conf</c>.</p>
-              </item>
-              <item>
-                <p>Usually a line is added which should state:</p>
-                <list type="bulleted">
-                  <item>
-                    <p>which types of information that will be
-                      supervised by Erlang,</p>
-                  </item>
-                  <item>
-                    <p>the name of the file (actually a named pipe)
-                      that should receive the information.</p>
-                  </item>
-                </list>
-              </item>
-              <item>
-                <p>If e.g. only information originating from the
-                  unix-kernel should be supervised, the line should
-                  begin with <c>kern.LEVEL</c> (for the possible
-                  values of <c>LEVEL</c> see <c>syslog.conf(5)</c>).</p>
-              </item>
-              <item>
-                <p>After at least one tab-character, the line added
-                  should contain the full name of the named pipe where
-                  syslogd writes its information. The path must be the
-                  same as for the <c>syslog.conf.ORIG</c> and
-                  <c>syslog.conf.OTP</c> files. The file name must be
-                  <c>syslog.otp</c>.</p>
-              </item>
-              <item>
-                <p>If the directory for the <c>syslog.conf.ORIG</c> and
-                  <c>syslog.conf.OTP</c> files is <c>/etc</c> the line
-                  in <c>syslog.conf.OTP</c> will look like:</p>
-                <code type="none">
+	    </list>
+	    </item>
+	    <item><em>Make an Erlang-specific configuration file for
+	    <c>syslogd</c>:</em>
+	    <list type="bulleted">
+	      <item>Make an edited copy of the backup copy previously
+	      made.</item>
+              <item>The filename must be <c>syslog.conf.OTP</c>. The
+	      path must be the same as the backup copy.</item>
+              <item>The format of the configuration file is found in the
+	      <c>syslog.conf(5)</c> manual page, by issuing the command
+	      <c>man syslog.conf</c>.</item>
+              <item>Usually a line is added that is to state:
+	      <list type="bulleted">
+		<item>Which types of information that is to be
+		supervised by Erlang</item>
+		<item>The name of the file (actually a named pipe) that
+		is to receive the information</item>
+	      </list>
+	      </item>
+	      <item>If, for example, only information originating from
+	      the UNIX kernel is to be supervised, the line is to
+	      begin with <c>kern.LEVEL</c>. For the possible
+	      values of <c>LEVEL</c>, see <c>syslog.conf(5)</c>.</item>
+	      <item>After at least one tab-character, the line added is to
+	      contain the full name of the named pipe where <c>syslogd</c>
+	      writes its information. The path must be the same as for the
+	      files <c>syslog.conf.ORIG</c> and <c>syslog.conf.OTP</c>.
+	      The filename must be <c>syslog.otp</c>.</item>
+	      <item>If the directory for the files <c>syslog.conf.ORIG</c>
+	      and <c>syslog.conf.OTP</c> is <c>/etc</c>, the line in
+	      <c>syslog.conf.OTP</c> is as follows:
+	      <code type="none">
 kern.LEVEL                /etc/syslog.otp</code>
-              </item>
-            </list>
-          </item>
-          <item>
-            <p><em>Check the file privileges of the configuration files.</em></p>
-            <list type="bulleted">
-              <item>
-                <p>The configuration files should have <c>rw-r--r--</c>
-                  file privileges and be owned by root.</p>
-              </item>
-              <item>
-                <p>A simple way to do this is to issue the commands</p>
-                <code type="none">
+	      </item>
+	    </list>
+	    </item>
+	    <item><em>Check the file privileges of the configuration
+	    files:</em>
+	    <list type="bulleted">
+	      <item>The configuration files is to have <c>rw-r--r--</c>
+	      file privileges and be owned by root.</item>
+              <item>A simple way to do this is to issue these commands:
+	      <code type="none">
 chmod 644 /etc/syslog.conf
 chmod 644 /etc/syslog.conf.ORIG
 chmod 644 /etc/syslog.conf.OTP</code>
-              </item>
-              <item>
-                <p><em>Note:</em> If the <c>syslog.conf.ORIG</c> and
-                  <c>syslog.conf.OTP</c> files are not in the
-                  <c>/etc</c> directory, the file path in the second
-                  and third command must be modified.</p>
-              </item>
-            </list>
-          </item>
-          <item>
-            <p><em>Modify file privileges and ownership of the mod_syslog utility.</em></p>
-            <list type="bulleted">
-              <item>
-                <p>The file privileges and ownership of the
-                  <c>mod_syslog</c> utility must be modified.</p>
-              </item>
-              <item>
-                <p>The full name of the binary executable file is
-                  derived from the position of the <c>os_mon</c>
-                  application if the file system by adding
-                  <c>/priv/bin/mod_syslog</c>. The generic full name
-                  of the binary executable file is thus</p>
-                <code type="none"><![CDATA[
+	      </item>
+              <item>Notice that if the files <c>syslog.conf.ORIG</c> and
+	      <c>syslog.conf.OTP</c> are not in directory <c>/etc</c>,
+	      the file path in the second and third command must be
+	      modified.</item>
+	    </list>
+	    </item>
+	    <item><em>Modify file privileges and ownership of the
+	    <c>mod_syslog</c> utility:</em>
+	    <list type="bulleted">
+	      <item>The file privileges and ownership of the
+	      <c>mod_syslog</c> utility must be modified.</item>
+              <item><p>The full name of the binary executable file is
+	      derived from the position of application <c>os_mon</c>
+	      in the file system by adding
+	      <c>/priv/bin/mod_syslog</c>. The generic full name
+	      of the binary executable file is thus:</p>
+	      <code type="none"><![CDATA[
 <OTP_ROOT>/lib/os_mon-<REV>/priv/bin/mod_syslog]]></code>
-                <p><em>Example:</em> If the path to the otp-root is
-                  <c>/usr/otp</c>, thus the path to the <c>os_mon</c>
-                  application is <c>/usr/otp/lib/os_mon-1.0</c>
-                  (assuming revision 1.0) and the full name of the
-                  binary executable file is
-                  <c>/usr/otp/lib/os_mon-1.0/priv/bin/mod_syslog</c>.</p>
-              </item>
-              <item>
-                <p>The binary executable file must be owned by root,
-                  have <c>rwsr-xr-x</c> file privileges, in particular
-                  the setuid bit of user must be set.
-                  </p>
-              </item>
-              <item>
-                <p>A simple way to do this is to issue the commands</p>
-                <code type="none"><![CDATA[
+	      <p><em>Example:</em> If the path to <c>otp-root</c> is
+	      <c>/usr/otp</c>, then the path to the <c>os_mon</c>
+	      application is <c>/usr/otp/lib/os_mon-1.0</c>
+	      (assuming revision 1.0) and the full name of the
+	      binary executable file is
+	      <c>/usr/otp/lib/os_mon-1.0/priv/bin/mod_syslog</c>.</p>
+	      </item>
+	      <item>The binary executable file must be owned by root,
+	      have <c>rwsr-xr-x</c> file privileges, in particular
+	      the <c>setuid</c> bit of the user must be set.</item>
+              <item><p>A simple way to do this is to issue the following
+	      commands:</p>
+	      <code type="none"><![CDATA[
 cd <OTP_ROOT>/lib/os_mon-<REV>/priv/bin/mod_syslog
 chmod 4755 mod_syslog
 chown root mod_syslog]]></code>
-              </item>
-            </list>
-          </item>
-        </list>
-      </section>
-
-      <section>
-        <title>Testing the Application Configuration File</title>
-        <p>The following procedure does not require root privilege.
-          </p>
-        <list type="bulleted">
-          <item>
-            <p>Ensure that the configuration parameters for the
-              <c>os_sup</c> module in the <c>os_mon</c> application
-              are correct.</p>
-          </item>
-          <item>
-            <p>Browse the application configuration file (do
-              <em>not</em> edit it). The full name of the application
-              configuration file is derived from the position of the
-              OS_Mon application if the file system by adding
-              <c>/ebin/os_mon.app</c>.
-              </p>
-            <p>The generic full name of the file is thus</p>
-            <code type="none"><![CDATA[
+	    </item>
+	  </list>
+	</item>
+      </list>
+    </section>
+
+    <section>
+      <title>Testing the Application Configuration File</title>
+      <p>The following procedure does not require root privilege:</p>
+      <list type="bulleted">
+	<item>Ensure that the configuration parameters for the
+	<c>os_sup</c> module in the <c>os_mon</c> application
+	are correct.</item>
+	<item><p>Browse the application configuration file (do
+	<em>not</em> edit it). The full name of the application
+	configuration file is derived from the position of the
+	<c>os_mon</c> application in the file system by adding
+	<c>/ebin/os_mon.app</c>.</p>
+	<p>The generic full name of the file is thus:</p>
+	<code type="none"><![CDATA[
 <OTP_ROOT>/lib/os_mon-<REV>/ebin/os_mon.app.]]></code>
-            <p><em>Example:</em> If the path to the otp-root is
-              <c>/usr/otp</c>, thus the path to the <c>os_mon</c>
-              application is <c>/usr/otp/lib/os_mon-1.0 </c> (assuming
-              revision 1.0) and the full name of the binary executable
-              file is <c>/usr/otp/lib/os_mon-1.0/ebin/os_mon.app</c>.</p>
-          </item>
-          <item>
-            <p>Ensure that the following configuration parameters are
-              bound to the correct values.</p>
-          </item>
+	<p><em>Example:</em> If the path to <c>otp-root</c> is
+	<c>/usr/otp</c>, then the path to the <c>os_mon</c> application
+	is <c>/usr/otp/lib/os_mon-1.0 </c> (assuming revision 1.0) and
+	the full name of the binary executable file is
+	<c>/usr/otp/lib/os_mon-1.0/ebin/os_mon.app</c>.</p>
+	</item>
+	<item>Ensure that the following configuration parameters have
+	correct values:</item>
         </list>
-        <table>
+
+	<table>
           <row>
             <cell align="left" valign="top"><em>Parameter</em></cell>
             <cell align="left" valign="top"><em>Function</em></cell>
             <cell align="left" valign="top"><em>Standard value</em></cell>
           </row>
           <row>
-            <cell align="left" valign="middle">start_os_sup</cell>
-            <cell align="left" valign="middle">Specifies if os_sup will be started or not.</cell>
-            <cell align="left" valign="middle"><c>true</c>for the first instance on the hardware; <c>false</c>for the other instances.</cell>
+            <cell align="left" valign="middle"><c>start_os_sup</c></cell>
+            <cell align="left" valign="middle">Specifies if <c>os_sup</c>
+	    is to be started or not.</cell>
+            <cell align="left" valign="middle"><c>true</c> for the
+	    first instance on the hardware; <c>false</c> for the
+	    other instances</cell>
           </row>
           <row>
-            <cell align="left" valign="middle">os_sup_own</cell>
-            <cell align="left" valign="middle">The directory for (1)the back-up copy, (2) the Erlang specific configuration file for syslogd.</cell>
+            <cell align="left" valign="middle"><c>os_sup_own</c></cell>
+            <cell align="left" valign="middle">The directory for
+	    (1) back-up copy and (2) Erlang-specific configuration
+	    file for <c>syslogd</c></cell>
             <cell align="left" valign="middle"><c>"/etc"</c></cell>
           </row>
           <row>
-            <cell align="left" valign="middle">os_sup_syslogconf</cell>
-            <cell align="left" valign="middle">The full name for the  Solaris standard configuration file for syslogd </cell>
+            <cell align="left" valign="middle"><c>os_sup_syslogconf</c></cell>
+            <cell align="left" valign="middle">The full name for the
+	    Solaris standard configuration file for <c>syslogd</c></cell>
             <cell align="left" valign="middle"><c>"/etc/syslog.conf"</c></cell>
           </row>
           <row>
-            <cell align="left" valign="middle">error_tag</cell>
-            <cell align="left" valign="middle">The tag for the messages that are sent to the error  logger in the Erlang runtime system.</cell>
+            <cell align="left" valign="middle"><c>error_tag</c></cell>
+            <cell align="left" valign="middle">The tag for the
+	    messages that are sent to the error logger in the Erlang
+	    runtime system</cell>
             <cell align="left" valign="middle"><c>std_error</c></cell>
           </row>
           <tcaption>Configuration Parameters</tcaption>
         </table>
-        <p>If the values listed in the <c>os_mon.app</c> do not suit
-          your needs, you should <c>not</c> edit that file. Instead
-          you should <em>override</em> values in a <em>system configuration file</em>, the full pathname of which is given
-          on the command line to <c>erl</c>.
-          </p>
-        <p><em>Example:</em> The following is an example of the
-          contents of an application configuration file.</p>
-        <p></p>
-        <pre>
+
+        <p>If the values listed in <c>os_mon.app</c> do not suit
+          your needs, do <em>not</em> edit that file. Instead
+          <em>override</em> the values in a <em>system configuration
+	  file</em>, the full pathname of which is given
+          on the command line to <c>erl</c>.</p>
+        <p><em>Example:</em> Contents of an application configuration
+	  file:</p>
+	  <pre>
           [{os_mon, [{start_os_sup, true}, {os_sup_own, "/etc"}, 
           {os_sup_syslogconf, "/etc/syslog.conf"}, {os_sup_errortag, std_error}]}].</pre>
-      </section>
-
-      <section>
-        <title>Related Documents</title>
-        <p>See also the <c>os_mon(3)</c>, <c>application(3)</c> and
-          <c>erl(1)</c> reference manual pages.</p>
-      </section>
     </section>
 
     <section>
-      <title>Installation Problems</title>
-      <p>The hardware watchdog timer which is controlled by the
-        <c>heart</c> port program requires the <c>FORCEvme</c>
-        package, which contains the VME bus driver, to be
-        installed. This driver, however, may clash with the Sun
-        <c>mcp</c> driver and cause the system to completely refuse to
-        boot. To cure this problem, the following lines should be
-        added to <c>/etc/system</c>:
-        </p>
+      <title>Related Documents</title>
+      <p>See the <c>os_mon(3)</c> application,
+      the <c>application(3)</c> manual page in <c>kernel</c>,
+      and the <c>erl(1)</c> manual page in <c>erts</c>.</p>
+    </section>
+  </section>
+
+  <section>
+    <title>Installation Problems</title>
+      <p>The hardware watchdog timer, which is controlled by the
+        <c>heart</c> port program, requires package <c>FORCEvme</c>,
+        which contains the VME bus driver, to be
+        installed. However, this driver can clash with the Sun
+        <c>mcp</c> driver and cause the system to refuse to
+        boot. To cure this problem, the following lines are
+	to be added to <c>/etc/system</c>:</p>
       <list type="bulleted">
         <item><c>exclude: drv/mcp</c></item>
         <item><c>exclude: drv/mcpzsa</c></item>
         <item><c>exclude: drv/mcpp</c></item>
       </list>
       <warning>
-        <p>It is recommended that these lines be added to avoid the
-          clash described, which may make it completely impossible to
-          boot the system.</p>
+        <p>It is recommended to add these lines to avoid a clash.
+	The clash can make it impossible to boot the system.</p>
       </warning>
     </section>
   </section>
 
   <section>
     <title>Starting Erlang</title>
-    <p>This section describes how an embedded system is started.  There
-      are four programs involved, and they all normally reside in the
-      directory <c><![CDATA[<ERL_INSTALL_DIR>/bin]]></c>.  The only exception is
-      the program <c>start</c>, which may be located anywhere, and
-      also is the only program that must be modified by the user.
-      </p>
-    <p>In an embedded system there usually is no interactive shell.
-      However, it is possible for an operator to attach to the Erlang
-      system by giving the command <c>to_erl</c>.  He is then
-      connected to the Erlang shell, and may give ordinary Erlang
-      commands.  All interaction with the system through this shell is
-      logged in a special directory.
-      </p>
-    <p>Basically, the procedure is as follows.  The program
-      <c>start</c> is called when the machine is started.  It calls
-      <c>run_erl</c>, which sets things up so the operator can attach
-      to the system.  It calls <c>start_erl</c> which calls the
-      correct version of <c>erlexec</c> (which is located in
-      <c><![CDATA[<ERL_INSTALL_DIR>/erts-EVsn/bin]]></c>) with the correct
-      <c>boot</c> and <c>config</c> files.
-      </p>
+    <p>This section describes how an embedded system is started. Four
+      programs are involved and they normally reside in the directory
+      <c><![CDATA[<ERL_INSTALL_DIR>/bin]]></c>. The only exception is
+      the <c>start</c> program, which can be located anywhere, and
+      is also the only program that must be modified by the user.</p>
+    <p>In an embedded system, there is usually no interactive shell.
+      However, an operator can attach to the Erlang
+      system by command <c>to_erl</c>. The operator is then
+      connected to the Erlang shell and can give ordinary Erlang
+      commands. All interaction with the system through this shell is
+      logged in a special directory.</p>
+    <p>Basically, the procedure is as follows:</p>
+    <list type="bulleted">
+      <item>The <c>start</c> program is called when the machine
+      is started.</item>
+      <item>It calls <c>run_erl</c>, which sets up things so the
+      operator can attach to the system.</item>
+      <item>It calls <c>start_erl</c>, which calls the correct
+      version of <c>erlexec</c> (which is located in
+      <c><![CDATA[<ERL_INSTALL_DIR>/erts-EVsn/bin]]></c>) with the
+      correct <c>boot</c> and <c>config</c> files.</item>
+    </list>
   </section>
 
   <section>
     <title>Programs</title>
-
     <section>
       <title>start</title>
-      <p>This program is called when the machine is started.  It may
-        be modified or re-written to suit a special system.  By
+      <p>This program is called when the machine is started. It can
+        be modified or rewritten to suit a special system. By
         default, it must be called <c>start</c> and reside in
-        <c><![CDATA[<ERL_INSTALL_DIR>/bin]]></c>.  Another start program can be
-        used, by using the configuration parameter <c>start_prg</c> in
-        the application <c>sasl</c>.</p>
+        <c><![CDATA[<ERL_INSTALL_DIR>/bin]]></c>. Another start
+	program can be used, by using configuration parameter
+	<c>start_prg</c> in application <c>sasl</c>.</p>
       <p>The start program must call <c>run_erl</c> as shown below.
-        It must also take an optional parameter which defaults to
-        <c><![CDATA[<ERL_INSTALL_DIR>/releases/start_erl.data]]></c>.
-        </p>
-      <p>This program should set static parameters and environment
+        It must also take an optional parameter, which defaults to
+        <c><![CDATA[<ERL_INSTALL_DIR>/releases/start_erl.data]]></c>.</p>
+      <p>This program is to set static parameters and environment
         variables such as <c>-sname Name</c> and <c>HEART_COMMAND</c>
-        to reboot the machine.
-        </p>
-      <p>The <c><![CDATA[<RELDIR>]]></c> directory is where new release packets
-        are installed, and where the release handler keeps information
-        about releases.  See <c>release_handler(3)</c> in the
-        application <c>sasl</c> for further information.
-        </p>
+        to reboot the machine.</p>
+      <p>The <c><![CDATA[<RELDIR>]]></c> directory is where new release
+        packets are installed, and where the release handler keeps
+	information about releases. For more information, see the
+	<c>release_handler(3)</c> manual page in <c>sasl</c>.</p>
       <p>The following script illustrates the default behaviour of the
-        program.
-        </p>
+        program:</p>
       <code type="none"><![CDATA[
 #!/bin/sh
 # Usage: start [DataFile]
@@ -583,10 +502,9 @@ START_ERL_DATA=${1:-$RELDIR/start_erl.data}
 $ROOTDIR/bin/run_erl /tmp/ $ROOTDIR/log "exec $ROOTDIR/bin/start_erl \ 
                      $ROOTDIR $RELDIR $START_ERL_DATA" > /dev/null 2>&1 &]]></code>
       <p>The following script illustrates a modification where the node
-        is given the name <c>cp1</c>, and the environment variables
+        is given the name <c>cp1</c>, and where the environment variables
         <c>HEART_COMMAND</c> and <c>TERM</c> have been added to the
-        above script.
-        </p>
+        previous script:</p>
       <code type="none"><![CDATA[
 #!/bin/sh
 # Usage: start [DataFile]
@@ -606,11 +524,10 @@ START_ERL_DATA=${1:-$RELDIR/start_erl.data}
 
 $ROOTDIR/bin/run_erl /tmp/ $ROOTDIR/log "exec $ROOTDIR/bin/start_erl \ 
       $ROOTDIR $RELDIR $START_ERL_DATA -heart -sname cp1" > /dev/null 2>&1 &]]></code>
-      <p>If a diskless and/or read-only client node is about to start the
-        <c>start_erl.data</c> file is located in the client directory at
-        the master node. Thus, the <c>START_ERL_DATA</c> line should look
-        like:
-        </p>
+      <p>If a diskless and/or read-only client node is about to start,
+        file <c>start_erl.data</c> is located in the client directory at
+        the master node. Thus, the <c>START_ERL_DATA</c> line is to look
+        like:</p>
       <code type="none">
 CLIENTDIR=$ROOTDIR/clients/clientname
 START_ERL_DATA=${1:-$CLIENTDIR/bin/start_erl.data}</code>
@@ -620,22 +537,24 @@ START_ERL_DATA=${1:-$CLIENTDIR/bin/start_erl.data}</code>
       <title>run_erl</title>
       <p>This program is used to start the emulator, but you will not
         be connected to the shell. <c>to_erl</c> is used to connect to
-        the Erlang shell.
-        </p>
+        the Erlang shell.</p>
       <code type="none">
 Usage: run_erl pipe_dir/ log_dir "exec command [parameters ...]"</code>
-      <p>Where <c>pipe_dir/</c> should be <c>/tmp/</c> (<c>to_erl</c>
-        uses this name by default) and <c>log_dir</c> is where the log
-        files are written.  <c>command [parameters]</c> is executed,
-        and everything written to stdin and stdout is logged in the
-        <c>log_dir</c>.
-        </p>
-      <p>In the <c>log_dir</c>, log files are written.  Each logfile
-        has a name of the form: <c>erlang.log.N</c> where N is a
-        generation number, ranging from 1 to 5. Each logfile holds up
-        to 100kB text. As time goes by the following logfiles will be
-        found in the logfile directory</p>
-      <code type="none">
+<p>Here:</p>
+     <list type="bulleted">
+       <item><c>pipe_dir/</c> is to be <c>/tmp/</c> (<c>to_erl</c>
+       uses this name by default).</item>
+       <item><c>log_dir</c> is where the log files are written.</item>
+       <item><c>command [parameters]</c> is executed.</item>
+       <item>Everything written to <c>stdin</c> and <c>stdout</c>
+       is logged in <c>log_dir</c>.</item>
+     </list>
+     <p>Log files are written in <c>log_dir</c>. Each log file
+       has a name of the form <c>erlang.log.N</c>, where N is a
+       generation number, ranging from 1 to 5. Each log file holds up
+       to 100 kB text. As time goes by, the following log files are
+       found in the log file directory:</p>
+       <code type="none">
 erlang.log.1
 erlang.log.1, erlang.log.2
 erlang.log.1, erlang.log.2, erlang.log.3
@@ -643,48 +562,40 @@ erlang.log.1, erlang.log.2, erlang.log.3, erlang.log.4
 erlang.log.2, erlang.log.3, erlang.log.4, erlang.log.5
 erlang.log.3, erlang.log.4, erlang.log.5, erlang.log.1
 ...</code>
-      <p>with the most recent logfile being the right most in each row
-        of the above list. That is, the most recent file is the one
-        with the highest number, or if there are already four files,
-        the one before the skip.
-        </p>
-      <p>When a logfile is opened (for appending or created) a time
-        stamp is written to the file.  If nothing has been written to
+      <p>The most recent log file is the rightmost in each row. That
+      is, the most recent file is the one with the highest number, or
+      if there are already four files, the one before the skip.</p>
+      <p>When a log file is opened (for appending or created), a time
+        stamp is written to the file. If nothing has been written to
         the log files for 15 minutes, a record is inserted that says
-        that we're still alive.
-        </p>
+        that we are still alive.</p>
     </section>
 
     <section>
       <title>to_erl</title>
       <p>This program is used to attach to a running Erlang runtime
-        system, started with <c>run_erl</c>.
-        </p>
+        system, started with <c>run_erl</c>.</p>
       <code type="none">
 Usage: to_erl [pipe_name | pipe_dir]</code>
-      <p>Where <c>pipe_name</c> defaults to <c>/tmp/erlang.pipe.N</c>.
-        </p>
+      <p>Here <c>pipe_name</c> defaults to <c>/tmp/erlang.pipe.N</c>.</p>
       <p>To disconnect from the shell without exiting the Erlang
-        system, type <c>Ctrl-D</c>.
-        </p>
+        system, type <c>Ctrl-D</c>.</p>
     </section>
 
     <section>
       <title>start_erl</title>
       <p>This program starts the Erlang emulator with parameters
-        <c>-boot</c> and <c>-config</c> set.  It reads data about
-        where these files are located from a file called
-        <c>start_erl.data</c> which is located in the <c><![CDATA[<RELDIR>]]></c>.
-        Each new release introduces a new data file.  This file is
-        automatically generated by the release handler in Erlang.
-        </p>
-      <p>The following script illustrates the behaviour of the
-        program.
-        </p>
+        <c>-boot</c> and <c>-config</c> set. It reads data about
+        where these files are located from a file named
+        <c>start_erl.data</c>, which is located in
+	<c><![CDATA[<RELDIR>]]></c>.
+        Each new release introduces a new data file. This file is
+        automatically generated by the release handler in Erlang.</p>
+      <p>The following script illustrates the behaviour of the program:</p>
       <code type="none">
 #!/bin/sh
 #
-# This program is called by run_erl.  It starts
+# This program is called by run_erl. It starts
 # the Erlang emulator and sets -boot and -config parameters.
 # It should only be used at an embedded target system.
 #
@@ -710,22 +621,23 @@ export PROGNAME
 export RELDIR
 
 exec $BINDIR/erlexec -boot $RELDIR/$VSN/start -config $RELDIR/$VSN/sys $*</code>
+
       <p>If a diskless and/or read-only client node with the
         <c>sasl</c> configuration parameter <c>static_emulator</c> set
-        to <c>true</c> is about to start the <c>-boot</c> and
-        <c>-config</c> flags must be changed. As such a client cannot
-        read a new <c>start_erl.data</c> file (the file is not
-        possible to change dynamically) the boot and config files are
+        to <c>true</c> is about to start, the <c>-boot</c> and
+        <c>-config</c> flags must be changed.</p>
+	<p>As such a client cannot
+        read a new <c>start_erl.data</c> file (the file cannot
+        be changed dynamically). The boot and config files are
         always fetched from the same place (but with new contents if
-        a new release has been installed). The <c>release_handler</c>
-        copies this files to the <c>bin</c> directory in the client
+        a new release has been installed).</p>
+	<p>The <c>release_handler</c>
+        copies these files to the <c>bin</c> directory in the client
         directory at the master nodes whenever a new release is made
-        permanent.
-        </p>
-      <p>Assuming the same <c>CLIENTDIR</c> as above the last line
-        should look like:
-        </p>
-      <code type="none">
+        permanent.</p>
+	<p>Assuming the same <c>CLIENTDIR</c> as above, the last line
+        is to look like:</p>
+	<code type="none">
 exec $BINDIR/erlexec -boot $CLIENTDIR/bin/start \ 
      -config $CLIENTDIR/bin/sys $*</code>
     </section>
diff --git a/system/doc/embedded/part.xml b/system/doc/embedded/part.xml
index e4366bd2c2..f3b44bf494 100644
--- a/system/doc/embedded/part.xml
+++ b/system/doc/embedded/part.xml
@@ -31,17 +31,17 @@
     <rev>C</rev>
     <file></file>
   </header>
+
   <description>
-    <p>This manual describes the issues that are specific
+    <marker id="embedded systems user guide"></marker>
+    <p>This section describes the issues that are specific
       for running Erlang on an embedded system.
       It describes the differences in installing and starting
-      Erlang compared to how it is done for a non-embedded system.
-      </p>
-    <p>Note that this is a supplementary document. You still need to
-      read the Installation Guide.
-      </p>
-    <p>There is also target architecture specific information in
-      the top level README file of the Erlang distribution.</p>
+      Erlang compared to how it is done for a non-embedded system.</p>
+      <note><p>This is a supplementary section. You also need to
+      read Section 1 Installation Guide.</p></note>
+    <p>There is also target architecture-specific information in
+      the top-level README file of the Erlang distribution.</p>
   </description>
   <xi:include href="embedded_solaris.xml"/>
   <xi:include href="embedded_nt.xml"/>
diff --git a/system/doc/getting_started/conc_prog.xml b/system/doc/getting_started/conc_prog.xml
index 2b64826a93..0dd9efb363 100644
--- a/system/doc/getting_started/conc_prog.xml
+++ b/system/doc/getting_started/conc_prog.xml
@@ -29,25 +29,26 @@
     <file>conc_prog.xml</file>
   </header>
 
+  <marker id="Distributed Programming"></marker>
   <section>
     <title>Processes</title>
     <p>One of the main reasons for using Erlang instead of other
       functional languages is Erlang's ability to handle concurrency
-      and distributed programming. By concurrency we mean programs
-      which can handle several threads of execution at the same time.
-      For example, modern operating systems would allow you to use a
-      word processor, a spreadsheet, a mail client and a print job all
-      running at the same time. Of course each processor (CPU) in
+      and distributed programming. By concurrency is meant programs
+      that can handle several threads of execution at the same time.
+      For example, modern operating systems allow you to use a
+      word processor, a spreadsheet, a mail client, and a print job all
+      running at the same time. Each processor (CPU) in
       the system is probably only handling one thread (or job) at a
-      time, but it swaps between the jobs a such a rate that it gives
+      time, but it swaps between the jobs at such a rate that it gives
       the illusion of running them all at the same time. It is easy to
-      create parallel threads of execution in an Erlang program and it
-      is easy to allow these threads to communicate with each other. In
-      Erlang we call each thread of execution a <em>process</em>.</p>
+      create parallel threads of execution in an Erlang program and
+      to allow these threads to communicate with each other. In
+      Erlang, each thread of execution is called a <em>process</em>.</p>
     <p>(Aside: the term "process" is usually used when the threads of
       execution share no data with each other and the term "thread"
       when they share data in some way. Threads of execution in Erlang
-      share no data, that's why we call them processes).</p>
+      share no data, that is why they are called processes).</p>
     <p>The Erlang BIF <c>spawn</c> is used to create a new process:
       <c>spawn(Module, Exported_Function, List of Arguments)</c>.
       Consider the following module:</p>
@@ -73,14 +74,14 @@ hello
 hello
 hello
 done</pre>
-    <p>We can see that function <c>say_something</c> writes its first
-      argument the number of times specified by second argument. Now
-      look at the function <c>start</c>. It starts two Erlang processes,
-      one which writes "hello" three times and one which writes
-      "goodbye" three times. Both of these processes use the function
-      <c>say_something</c>. Note that a function used in this way by
-      <c>spawn</c> to start a process must be exported from the module
-      (i.e. in the <c>-export</c> at the start of the module).</p>
+    <p>As shown, the function <c>say_something</c> writes its first
+      argument the number of times specified by second argument.
+      The function <c>start</c> starts two Erlang processes,
+      one that writes "hello" three times and one that writes
+      "goodbye" three times. Both processes use the function
+      <c>say_something</c>. Notice that a function used in this way by
+      <c>spawn</c>, to start a process, must be exported from the module
+      (that is, in the <c>-export</c> at the start of the module).</p>
     <pre>
 9> <input>tut14:start().</input>
 hello
@@ -90,19 +91,19 @@ hello
 goodbye
 hello
 goodbye</pre>
-    <p>Notice that it didn't write "hello" three times and then
-      "goodbye" three times, but the first process wrote a "hello",
+    <p>Notice that it did not write "hello" three times and then
+      "goodbye" three times. Instead, the first process wrote a "hello",
       the second a "goodbye", the first another "hello" and so forth.
       But where did the &lt;0.63.0&gt; come from? The return value of a
-      function is of course the return value of the last "thing" in
-      the function. The last thing in the function <c>start</c> is:</p>
+      function is the return value of the last "thing" in
+      the function. The last thing in the function <c>start</c> is</p>
     <code type="none">
 spawn(tut14, say_something, [goodbye, 3]).</code>
     <p><c>spawn</c> returns a <em>process identifier</em>, or
       <em>pid</em>, which uniquely identifies the process. So &lt;0.63.0&gt;
-      is the pid of the <c>spawn</c> function call above. We will see
-      how to use pids in the next example.</p>
-    <p>Note as well that we have used ~p instead of ~w in
+      is the pid of the <c>spawn</c> function call above.
+      The next example shows how to use pids.</p>
+    <p>Notice also that ~p is used instead of ~w in
       <c>io:format</c>. To quote the manual: "~p Writes the data with
       standard syntax in the same way as ~w, but breaks terms whose
       printed representation is longer than one line into many lines
@@ -112,8 +113,8 @@ spawn(tut14, say_something, [goodbye, 3]).</code>
 
   <section>
     <title>Message Passing</title>
-    <p>In the following example we create two processes which send
-      messages to each other a number of times.</p>
+    <p>In the following example two processes are created and
+    they send messages to each other a number of times.</p>
     <code type="none">
 -module(tut15).
 
@@ -157,13 +158,13 @@ Pong received ping
 Ping received pong
 ping finished
 Pong finished</pre>
-    <p>The function <c>start</c> first creates a process, let's call it
-      "pong":</p>
+    <p>The function <c>start</c> first creates a process,
+      let us call it "pong":</p>
     <code type="none">
 Pong_PID = spawn(tut15, pong, [])</code>
     <p>This process executes <c>tut15:pong()</c>. <c>Pong_PID</c> is
       the process identity of the "pong" process. The function
-      <c>start</c> now creates another process "ping".</p>
+      <c>start</c> now creates another process "ping":</p>
     <code type="none">
 spawn(tut15, ping, [3, Pong_PID]),</code>
     <p>This process executes:</p>
@@ -181,7 +182,7 @@ receive
         pong()
 end.</code>
     <p>The <c>receive</c> construct is used to allow processes to wait
-      for messages from other processes. It has the format:</p>
+      for messages from other processes. It has the following format:</p>
     <code type="none">
 receive
    pattern1 ->
@@ -192,35 +193,37 @@ receive
    patternN
        actionsN
 end.</code>
-    <p>Note: no ";" before the <c>end</c>.</p>
+    <p>Notice there is no ";" before the <c>end</c>.</p>
     <p>Messages between Erlang processes are simply valid Erlang terms.
-      I.e. they can be lists, tuples, integers, atoms, pids etc.</p>
+      That is, they can be lists, tuples, integers, atoms, pids,
+      and so on.</p>
     <p>Each process has its own input queue for messages it receives.
       New messages received are put at the end of the queue. When a
       process executes a <c>receive</c>, the first message in the queue
-      is matched against the first pattern in the <c>receive</c>, if
+      is matched against the first pattern in the <c>receive</c>. If
       this matches, the message is removed from the queue and
-      the actions corresponding to the the pattern are executed.</p>
+      the actions corresponding to the pattern are executed.</p>
     <p>However, if the first pattern does not match, the second pattern
-      is tested, if this matches the message is removed from the queue
+      is tested. If this matches, the message is removed from the queue
       and the actions corresponding to the second pattern are executed.
-      If the second pattern does not match the third is tried and so on
-      until there are no more pattern to test. If there are no more
-      patterns to test, the first message is kept in the queue and we
-      try the second message instead. If this matches any pattern,
+      If the second pattern does not match, the third is tried and so on
+      until there are no more patterns to test. If there are no more
+      patterns to test, the first message is kept in the queue and
+      the second message is tried instead. If this matches any pattern,
       the appropriate actions are executed and the second message is
       removed from the queue (keeping the first message and any other
-      messages in the queue). If the second message does not match we
-      try the third message and so on until we reach the end of
-      the queue. If we reach the end of the queue, the process blocks
+      messages in the queue). If the second message does not match,
+      the third message is tried, and so on, until the end of
+      the queue is reached. If the end of the queue is reached,
+      the process blocks
       (stops execution) and waits until a new message is received and
       this procedure is repeated.</p>
-    <p>Of course the Erlang implementation is "clever" and minimizes
+    <p>The Erlang implementation is "clever" and minimizes
       the number of times each message is tested against the patterns
       in each <c>receive</c>.</p>
     <p>Now back to the ping pong example.</p>
     <p>"Pong" is waiting for messages. If the atom <c>finished</c> is
-      received, "pong" writes "Pong finished" to the output and as it
+      received, "pong" writes "Pong finished" to the output and, as it
       has nothing more to do, terminates. If it receives a message with
       the format:</p>
     <code type="none">
@@ -229,20 +232,20 @@ end.</code>
       <c>pong</c> to the process "ping":</p>
     <code type="none">
 Ping_PID ! pong</code>
-    <p>Note how the operator "!" is used to send messages. The syntax
+    <p>Notice how the operator "!" is used to send messages. The syntax
       of "!" is:</p>
     <code type="none">
 Pid ! Message</code>
-    <p>I.e. <c>Message</c> (any Erlang term) is sent to the process
+    <p>That is, <c>Message</c> (any Erlang term) is sent to the process
       with identity <c>Pid</c>.</p>
     <p>After sending the message <c>pong</c> to the process "ping",
       "pong" calls the <c>pong</c> function again, which causes it to
-      get back to the <c>receive</c> again and wait for another message.
-      Now let's look at the process "ping". Recall that it was started
+      get back to the <c>receive</c> again and wait for another message.</p>
+     <p>Now let us look at the process "ping". Recall that it was started
       by executing:</p>
     <code type="none">
 tut15:ping(3, Pong_PID)</code>
-    <p>Looking at the function <c>ping/2</c> we see that the second
+    <p>Looking at the function <c>ping/2</c>, the second
       clause of <c>ping/2</c> is executed since the value of the first
       argument is 3 (not 0) (first clause head is
       <c>ping(0,Pong_PID)</c>, second clause head is
@@ -250,9 +253,9 @@ tut15:ping(3, Pong_PID)</code>
     <p>The second clause sends a message to "pong":</p>
     <code type="none">
 Pong_PID ! {ping, self()},</code>
-    <p><c>self()</c> returns the pid of the process which executes
+    <p><c>self()</c> returns the pid of the process that executes
       <c>self()</c>, in this case the pid of "ping". (Recall the code
-      for "pong", this will land up in the variable <c>Ping_PID</c> in
+      for "pong", this lands up in the variable <c>Ping_PID</c> in
       the <c>receive</c> previously explained.)</p>
     <p>"Ping" now waits for a reply from "pong":</p>
     <code type="none">
@@ -260,37 +263,37 @@ receive
     pong ->
         io:format("Ping received pong~n", [])
 end,</code>
-    <p>and writes "Ping received pong" when this reply arrives, after
+    <p>It writes "Ping received pong" when this reply arrives, after
       which "ping" calls the <c>ping</c> function again.</p>
     <code type="none">
 ping(N - 1, Pong_PID)</code>
     <p><c>N-1</c> causes the first argument to be decremented until it
       becomes 0. When this occurs, the first clause of <c>ping/2</c>
-      will be executed:</p>
+      is executed:</p>
     <code type="none">
 ping(0, Pong_PID) ->
     Pong_PID !  finished,
     io:format("ping finished~n", []);</code>
     <p>The atom <c>finished</c> is sent to "pong" (causing it to
       terminate as described above) and "ping finished" is written to
-      the output. "Ping" then itself terminates as it has nothing left
+      the output. "Ping" then terminates as it has nothing left
       to do.</p>
   </section>
 
   <section>
     <title>Registered Process Names</title>
-    <p>In the above example, we first created "pong" so as to be able
-      to give the identity of "pong" when we started "ping". I.e. in
-      some way "ping" must be able to know the identity of "pong" in
-      order to be able to send a message to it. Sometimes processes
-      which need to know each others identities are started completely
+    <p>In the above example, "pong" was first created to be able
+      to give the identity of "pong" when "ping" was started. That is, in
+      some way "ping" must be able to know the identity of "pong" to be
+      able to send a message to it. Sometimes processes
+      which need to know each other's identities are started
       independently of each other. Erlang thus provides a mechanism for
       processes to be given names so that these names can be used as
       identities instead of pids. This is done by using
       the <c>register</c> BIF:</p>
     <code type="none">
 register(some_atom, Pid)</code>
-    <p>We will now re-write the ping pong example using this and giving
+    <p>Let us now rewrite the ping pong example using this and give
       the name <c>pong</c> to the "pong" process:</p>
     <code type="none">
 -module(tut16).
@@ -335,52 +338,57 @@ Pong received ping
 Ping received pong
 ping finished
 Pong finished</pre>
-    <p>In the <c>start/0</c> function,</p>
+    <p>Here the <c>start/0</c> function,</p>
     <code type="none">
 register(pong, spawn(tut16, pong, [])),</code>
     <p>both spawns the "pong" process and gives it the name <c>pong</c>.
-      In the "ping" process we can now send messages to <c>pong</c> by:</p>
+      In the "ping" process, messages can be sent to <c>pong</c> by:</p>
     <code type="none">
 pong ! {ping, self()},</code>
-    <p>so that <c>ping/2</c> now becomes <c>ping/1</c> as we don't have
-      to use the argument <c>Pong_PID</c>.</p>
+    <p><c>ping/2</c> now becomes <c>ping/1</c> as
+      the argument <c>Pong_PID</c> is not needed.</p>
   </section>
 
   <section>
     <title>Distributed Programming</title>
-    <p>Now let's re-write the ping pong program with "ping" and "pong"
-      on different computers. Before we do this, there are a few things
-      we need to set up to get this to work. The distributed Erlang
+    <p>Let us rewrite the ping pong program with "ping" and "pong"
+      on different computers. First a few things
+      are needed to set up to get this to work. The distributed Erlang
       implementation provides a basic security mechanism to prevent
       unauthorized access to an Erlang system on another computer.
       Erlang systems which talk to each other must have
       the same <em>magic cookie</em>. The easiest way to achieve this
       is by having a file called <c>.erlang.cookie</c> in your home
-      directory on all machines which on which you are going to run
-      Erlang systems communicating with each other (on Windows systems
-      the home directory is the directory where pointed to by the $HOME
-      environment variable - you may need to set this. On Linux or Unix
-      you can safely ignore this and simply create a file called
-      <c>.erlang.cookie</c> in the directory you get to after executing
-      the command <c>cd</c> without any argument).
-      The <c>.erlang.cookie</c> file should contain one line with
-      the same atom. For example, on Linux or Unix in the OS shell:</p>
+      directory on all machines on which you are going to run
+      Erlang systems communicating with each other:
+     </p>
+      <list type="bulleted">
+	<item>On Windows systems the home directory is the directory
+	pointed out by the environment variable $HOME - you may need
+        to set this.</item>
+        <item> On Linux or UNIX
+        you can safely ignore this and simply create a file called
+        <c>.erlang.cookie</c> in the directory you get to after executing
+        the command <c>cd</c> without any argument.</item>
+      </list>
+      <p>The <c>.erlang.cookie</c> file is to contain a line with
+      the same atom. For example, on Linux or UNIX, in the OS shell:</p>
     <pre>
 $ <input>cd</input>
 $ <input>cat > .erlang.cookie</input>
 this_is_very_secret
 $ <input>chmod 400 .erlang.cookie</input></pre>
-    <p>The <c>chmod</c> above make the <c>.erlang.cookie</c> file
+    <p>The <c>chmod</c> above makes the <c>.erlang.cookie</c> file
       accessible only by the owner of the file. This is a requirement.</p>
-    <p>When you start an Erlang system which is going to talk to other
-      Erlang systems, you must give it a name, e.g.: </p>
+    <p>When you start an Erlang system that is going to talk to other
+      Erlang systems, you must give it a name, for example:</p>
     <pre>
 $ <input>erl -sname my_name</input></pre>
     <p>We will see more details of this later. If you want to
       experiment with distributed Erlang, but you only have one
       computer to work on, you can start two separate Erlang systems on
       the same computer but give them different names. Each Erlang
-      system running on a computer is called an Erlang node.</p>
+      system running on a computer is called an <em>Erlang node</em>.</p>
     <p>(Note: <c>erl -sname</c> assumes that all nodes are in the same
       IP domain and we can use only the first component of the IP
       address, if we want to use nodes in different domains we use
@@ -420,10 +428,10 @@ start_pong() ->
 
 start_ping(Pong_Node) ->
     spawn(tut17, ping, [3, Pong_Node]).</code>
-    <p>Let us assume we have two computers called gollum and kosken. We
-      will start a node on kosken called ping and then a node on gollum
+    <p>Let us assume there are two computers called gollum and kosken.
+      First a node is started on kosken, called ping, and then a node on gollum,
       called pong.</p>
-    <p>On kosken (on a Linux/Unix system):</p>
+    <p>On kosken (on a Linux/UNIX system):</p>
     <pre>
 kosken> <input>erl -sname ping</input>
 Erlang (BEAM) emulator version 5.2.3.7 [hipe] [threads:0]
@@ -437,12 +445,12 @@ Erlang (BEAM) emulator version 5.2.3.7 [hipe] [threads:0]
 
 Eshell V5.2.3.7  (abort with ^G)
 (pong@gollum)1></pre>
-    <p>Now we start the "pong" process on gollum:</p>
+    <p>Now the "pong" process on gollum is started:</p>
     <pre>
 (pong@gollum)1> <input>tut17:start_pong().</input>
 true</pre>
-    <p>and start the "ping" process on kosken (from the code above you
-      will see that a parameter of the <c>start_ping</c> function is
+    <p>And the "ping" process on kosken is started (from the code above you
+      can see that a parameter of the <c>start_ping</c> function is
       the node name of the Erlang system where "pong" is running):</p>
     <pre>
 (ping@kosken)1> <input>tut17:start_ping(pong@gollum).</input>
@@ -451,8 +459,7 @@ Ping received pong
 Ping received pong 
 Ping received pong
 ping finished</pre>
-    <p>Here we see that the ping pong program has run, on the "pong"
-      side we see:</p>
+    <p>As shown, the ping pong program has run. On the "pong" side:</p>
     <pre>
 (pong@gollum)2>
 Pong received ping                 
@@ -460,28 +467,28 @@ Pong received ping
 Pong received ping                 
 Pong finished                      
 (pong@gollum)2></pre>
-    <p>Looking at the <c>tut17</c> code we see that the <c>pong</c>
-      function itself is unchanged, the lines:</p>
+    <p>Looking at the <c>tut17</c> code, you see that the <c>pong</c>
+      function itself is unchanged, the following lines work in the same way
+      irrespective of on which node the "ping" process is executes:</p>
     <code type="none">
 {ping, Ping_PID} ->
     io:format("Pong received ping~n", []),
     Ping_PID ! pong,</code>
-    <p>work in the same way irrespective of on which node the "ping"
-      process is executing. Thus Erlang pids contain information about
-      where the process executes so if you know the pid of a process,
-      the "!" operator can be used to send it a message if the process
-      is on the same node or on a different node.</p>
-    <p>A difference is how we send messages to a registered process on
+    <p>Thus, Erlang pids contain information about
+      where the process executes. So if you know the pid of a process,
+      the "!" operator can be used to send it a message disregarding
+      if the process is on the same node or on a different node.</p>
+    <p>A difference is how messages are sent to a registered process on
       another node:</p>
     <code type="none">
 {pong, Pong_Node} ! {ping, self()},</code>
-    <p>We use a tuple <c>{registered_name,node_name}</c> instead of
+    <p>A tuple <c>{registered_name,node_name}</c> is used instead of
       just the <c>registered_name</c>.</p>
-    <p>In the previous example, we started "ping" and "pong" from
+    <p>In the previous example, "ping" and "pong" were started from
       the shells of two separate Erlang nodes. <c>spawn</c> can also be
-      used to start processes in other nodes. The next example is
-      the ping pong program, yet again, but this time we will start
-      "ping" in another node:</p>
+      used to start processes in other nodes.</p>
+      <p>The next example is the ping pong program, yet again,
+      but this time "ping" is started in another node:</p>
     <code type="none">
 -module(tut18).
 
@@ -513,7 +520,7 @@ start(Ping_Node) ->
     register(pong, spawn(tut18, pong, [])),
     spawn(Ping_Node, tut18, ping, [3, node()]).</code>
     <p>Assuming an Erlang system called ping (but not the "ping"
-      process) has already been started on kosken, then on gollum we do:</p>
+      process) has already been started on kosken, then on gollum this is done:</p>
     <pre>
 (pong@gollum)1> <input>tut18:start(ping@kosken).</input>
 &lt;3934.39.0>
@@ -525,39 +532,40 @@ Pong received ping
 Ping received pong
 Pong finished
 ping finished</pre>
-    <p>Notice we get all the output on gollum. This is because the io
+    <p>Notice that all the output is received on gollum. This is because
+      the I/O
       system finds out where the process is spawned from and sends all
       output there.</p>
   </section>
 
   <section>
     <title>A Larger Example</title>
-    <p>Now for a larger example. We will make an extremely simple
-      "messenger". The messenger is a program which allows users to log
+    <p>Now for a larger example with a simple
+      "messenger". The messenger is a program that allows users to log
       in on different nodes and send simple messages to each other.</p>
-    <p>Before we start, let's note the following:</p>
+    <p>Before starting, notice the following:</p>
     <list type="bulleted">
       <item>
-        <p>This example will just show the message passing logic - no
-          attempt at all has been made to provide a nice graphical user
-          interface. This can, of course, also be done in Erlang - but
-          that's another tutorial.</p>
+        <p>This example only shows the message passing logic - no
+          attempt has been made to provide a nice graphical user
+          interface, although this can also be done in Erlang.</p>
       </item>
       <item>
-        <p>This sort of problem can be solved more easily if you use
-          the   facilities in OTP, which will also provide methods for
-          updating code   on the fly etc. But again, that's another
-          tutorial.</p>
+        <p>This sort of problem can be solved easier by use of
+          the facilities in OTP, which also provide methods for
+          updating code on the fly and so on (see
+	  <seealso marker="doc/design_principles:des_princ#otp design principles">
+          OTP Design Principles</seealso>).</p>
       </item>
       <item>
-        <p>The first program we write will contain some inadequacies
-          regarding the handling of nodes which disappear. We will correct
-          these in a later version of the program.</p>
+        <p>The first program contains some inadequacies
+          regarding handling of nodes which disappear.
+          These are corrected in a later version of the program.</p>
       </item>
     </list>
-    <p>We will set up the messenger by allowing "clients" to connect to
-      a central server and say who and where they are. I.e. a user
-      won't need to know the name of the Erlang node where another user
+    <p>The messenger is set up by allowing "clients" to connect to
+      a central server and say who and where they are. That is, a user
+      does not need to know the name of the Erlang node where another user
       is located to send a message.</p>
     <p>File <c>messenger.erl</c>:</p>
     <marker id="ex"></marker>
@@ -728,19 +736,19 @@ await_result() ->
         {messenger, What} ->  % Normal response
             io:format("~p~n", [What])
     end.</code>
-    <p>To use this program you need to:</p>
+    <p>To use this program, you need to:</p>
     <list type="bulleted">
-      <item>configure the <c>server_node()</c> function</item>
-      <item>copy the compiled code (<c>messenger.beam</c>) to
-       the directory on each    computer where you start Erlang.</item>
+      <item>Configure the <c>server_node()</c> function.</item>
+      <item>Copy the compiled code (<c>messenger.beam</c>) to
+       the directory on each computer where you start Erlang.</item>
     </list>
-    <p>In the following example of use of this program I have started
-      nodes on four different computers, but if you don't have that
-      many machines available on your network you could start up
+    <p>In the following example using this program,
+      nodes are started on four different computers. If you do not have that
+      many machines available on your network, you can start
       several nodes on the same machine.</p>
-    <p>We start up four Erlang nodes: messenger@super, c1@bilbo,
+    <p>Four Erlang nodes are started up: messenger@super, c1@bilbo,
       c2@kosken, c3@gollum.</p>
-    <p>First we start up a the server at messenger@super:</p>
+    <p>First the server at messenger@super is started up:</p>
     <pre>
 (messenger@super)1> <input>messenger:start_server().</input>
 true</pre>
@@ -754,7 +762,7 @@ logged_on</pre>
 (c2@kosken)1> <input>messenger:logon(james).</input>
 true
 logged_on</pre>
-    <p>and Fred logs on at c3@gollum:</p>
+    <p>And Fred logs on at c3@gollum:</p>
     <pre>
 (c3@gollum)1> <input>messenger:logon(fred).</input>
 true
@@ -764,7 +772,7 @@ logged_on</pre>
 (c1@bilbo)2> <input>messenger:message(fred, "hello").</input>
 ok
 sent</pre>
-    <p>And Fred receives the message and sends a message to Peter and
+    <p>Fred receives the message and sends a message to Peter and
       logs off:</p>
     <pre>
 Message from peter: "hello"
@@ -779,27 +787,28 @@ logoff</pre>
 ok
 receiver_not_found</pre>
     <p>But this fails as Fred has already logged off.</p>
-    <p>First let's look at some of the new concepts we have introduced.</p>
+    <p>First let us look at some of the new concepts that have
+       been introduced.</p>
     <p>There are two versions of the <c>server_transfer</c> function:
       one with four arguments (<c>server_transfer/4</c>) and one with
       five (<c>server_transfer/5</c>). These are regarded by Erlang as
       two separate functions.</p>
-    <p>Note how we write the <c>server</c> function so that it calls
-      itself, via <c>server(User_List)</c>, and thus creates a loop.
+    <p>Notice how to write the <c>server</c> function so that it calls
+      itself, through <c>server(User_List)</c>, and thus creates a loop.
       The Erlang compiler is "clever" and optimizes the code so that
       this really is a sort of loop and not a proper function call. But
-      this only works if there is no code after the call, otherwise
-      the compiler will expect the call to return and make a proper
+      this only works if there is no code after the call. Otherwise,
+      the compiler expects the call to return and make a proper
       function call. This would result in the process getting bigger
       and bigger for every loop.</p>
-    <p>We use functions from the <c>lists</c> module. This is a very
+    <p>Functions in the <c>lists</c> module are used. This is a very
       useful module and a study of the manual page is recommended
       (<c>erl -man lists</c>).
       <c>lists:keymember(Key,Position,Lists)</c> looks through a list
       of tuples and looks at <c>Position</c> in each tuple to see if it
       is the same as <c>Key</c>. The first element is position 1. If it
       finds a tuple where the element at <c>Position</c> is the same as
-      Key, it returns <c>true</c>, otherwise <c>false</c>.</p>
+      <c>Key</c>, it returns <c>true</c>, otherwise <c>false</c>.</p>
     <pre>
 3> <input>lists:keymember(a, 2, [{x,y,z},{b,b,b},{b,a,c},{q,r,s}]).</input>
 true
@@ -812,82 +821,83 @@ false</pre>
 [{x,y,z},{b,b,b},{q,r,s}]</pre>
     <p><c>lists:keysearch</c> is like <c>lists:keymember</c>, but it
       returns <c>{value,Tuple_Found}</c> or the atom <c>false</c>.</p>
-    <p>There are a lot more very useful functions in the <c>lists</c>
+    <p>There are many very useful functions in the <c>lists</c>
       module.</p>
-    <p>An Erlang process will (conceptually) run until it does a
+    <p>An Erlang process (conceptually) runs until it does a
       <c>receive</c> and there is no message which it wants to receive
-      in the message queue. I say "conceptually" because the Erlang
+      in the message queue. "conceptually" is used here because the Erlang
       system shares the CPU time between the active processes in
       the system.</p>
     <p>A process terminates when there is nothing more for it to do,
-      i.e. the last function it calls simply returns and doesn't call
+      that is, the last function it calls simply returns and does not call
       another function. Another way for a process to terminate is for
       it to call <c>exit/1</c>. The argument to <c>exit/1</c> has a
-      special meaning which we will look at later. In this example we
-      will do <c>exit(normal)</c> which has the same effect as a
+      special meaning, which is discussed later. In this example,
+      <c>exit(normal)</c> is done, which has the same effect as a
       process running out of functions to call.</p>
     <p>The BIF <c>whereis(RegisteredName)</c> checks if a registered
-      process of name <c>RegisteredName</c> exists and return the pid
-      of the process if it does exist or the atom <c>undefined</c> if
-      it does not.</p>
-    <p>You should by now be able to understand most of the code above
-      so I'll just go through one case: a message is sent from one user
-      to another.</p>
+      process of name <c>RegisteredName</c> exists. If it exists, the pid of
+      that process is returned. If it does not exist, the atom
+      <c>undefined</c> is returned.</p>
+    <p>You should by now be able to understand most of the code in the
+      messenger-module. Let us study one case in detail: a message is
+      sent from one user to another.</p>
     <p>The first user "sends" the message in the example above by:</p>
     <code type="none">
 messenger:message(fred, "hello")</code>
     <p>After testing that the client process exists:</p>
     <code type="none">
 whereis(mess_client) </code>
-    <p>and a message is sent to <c>mess_client</c>:</p>
+    <p>And a message is sent to <c>mess_client</c>:</p>
     <code type="none">
 mess_client ! {message_to, fred, "hello"}</code>
     <p>The client sends the message to the server by:</p>
     <code type="none">
 {messenger, messenger@super} ! {self(), message_to, fred, "hello"},</code>
-    <p>and waits for a reply from the server.</p>
+    <p>And waits for a reply from the server.</p>
     <p>The server receives this message and calls:</p>
     <code type="none">
 server_transfer(From, fred, "hello", User_List),</code>
-    <p>which checks that the pid <c>From</c> is in the <c>User_List</c>:</p>
+    <p>This checks that the pid <c>From</c> is in the <c>User_List</c>:</p>
     <code type="none">
 lists:keysearch(From, 1, User_List) </code>
-    <p>If <c>keysearch</c> returns the atom <c>false</c>, some sort of
+    <p>If <c>keysearch</c> returns the atom <c>false</c>, some
       error has occurred and the server sends back the message:</p>
     <code type="none">
 From ! {messenger, stop, you_are_not_logged_on}</code>
-    <p>which is received by the client which in turn does
+    <p>This is received by the client, which in turn does
       <c>exit(normal)</c> and terminates. If <c>keysearch</c> returns
-      <c>{value,{From,Name}}</c> we know that the user is logged on and
-      is his name (peter) is in variable <c>Name</c>. We now call:</p>
+      <c>{value,{From,Name}}</c> it is certain that the user is logged on and
+      that his name (peter) is in variable <c>Name</c>.</p>
+      <p>Let us now call:</p>
     <code type="none">
 server_transfer(From, peter, fred, "hello", User_List)</code>
-    <p>Note that as this is <c>server_transfer/5</c> it is not the same
-      as the previous function <c>server_transfer/4</c>.  We do another
-      <c>keysearch</c> on <c>User_List</c> to find the pid of the client
-      corresponding to fred:</p>
+    <p>Notice that as this is <c>server_transfer/5</c>, it is not the same
+      as the previous function <c>server_transfer/4</c>. Another
+      <c>keysearch</c> is done on <c>User_List</c> to find the pid of
+      the client corresponding to fred:</p>
     <code type="none">
 lists:keysearch(fred, 2, User_List)</code>
-    <p>This time we use argument 2 which is the second element in
-      the tuple. If this returns the atom <c>false</c> we know that
-      fred is not logged on and we send the message:</p>
+    <p>This time argument 2 is used, which is the second element in
+      the tuple. If this returns the atom <c>false</c>,
+      fred is not logged on and the following message is sent:</p>
     <code type="none">
 From ! {messenger, receiver_not_found};</code>
-    <p>which is received by the client, if <c>keysearch</c> returns:</p>
+    <p>This is received by the client.</p>
+    <p> If <c>keysearch</c> returns:</p>
     <code type="none">
 {value, {ToPid, fred}}</code>
-    <p>we send the message:</p>
+    <p>The following message is sent to fred's client:</p>
     <code type="none">
 ToPid ! {message_from, peter, "hello"}, </code>
-    <p>to fred's client and the message:</p>
+    <p>The following message is sent to peter's client:</p>
     <code type="none">
 From ! {messenger, sent} </code>
-    <p>to peter's client.</p>
     <p>Fred's client receives the message and prints it:</p>
     <code type="none">
 {message_from, peter, "hello"} ->
     io:format("Message from ~p: ~p~n", [peter, "hello"])</code>
-    <p>and peter's client receives the message in
+    <p>Peter's client receives the message in
       the <c>await_result</c> function.</p>
   </section>
 </chapter>
diff --git a/system/doc/getting_started/intro.xml b/system/doc/getting_started/intro.xml
index e8d568bcaf..f9a56e4322 100644
--- a/system/doc/getting_started/intro.xml
+++ b/system/doc/getting_started/intro.xml
@@ -18,7 +18,7 @@
       basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
       the License for the specific language governing rights and limitations
       under the License.
-    
+
     </legalnotice>
 
     <title>Introduction</title>
@@ -28,38 +28,47 @@
     <rev></rev>
     <file>intro.xml</file>
   </header>
+  <marker id="getting started"></marker>
+
+    <p>This section is a quick start tutorial to get you started with Erlang.
+      Everything in this section is true, but only part of the truth. For example,
+      only the simplest form of the syntax is shown, not all esoteric forms.
+      Also, parts that are greatly simplified are indicated with *manual*.
+      This means that a lot more information on the subject is to be found in
+      the Erlang book or in
+      <seealso marker="doc/reference_manual:introduction#erlang ref manual">
+      Erlang Reference Manual</seealso>.</p>
 
   <section>
-    <title>Introduction</title>
-    <p>This is a "kick start" tutorial to get you started with Erlang.
-      Everything here is true, but only part of the truth. For example,
-      I'll only tell you the simplest form of the syntax, not all
-      esoteric forms. Where I've greatly oversimplified things I'll
-      write *manual* which means there is lots more information to be
-      found in the Erlang book or in the <em>Erlang Reference Manual</em>.</p>
-    <p>I also assume that this isn't the first time you have touched a
-      computer and you have a basic idea about how they are programmed.
-      Don't worry, I won't assume you're a wizard programmer.</p>
+    <title>Prerequisites</title>
+
+    <p>The reader of this section is assumed to be familiar with the following:</p>
+    <list type="bulleted">
+      <item>Computers in general</item>
+      <item>Basics on how computers are programmed</item>
+    </list>
+
   </section>
 
   <section>
-    <title>Things Left Out</title>
-    <p>In particular the following has been omitted:</p>
+    <title>Omitted Topics</title>
+
+    <p>The following topics are not treated in this section:</p>
     <list type="bulleted">
-      <item>References</item>
-      <item>Local error handling (catch/throw)</item>
-      <item>Single direction links (monitor)</item>
-      <item>Handling of binary data (binaries / bit syntax)</item>
-      <item>List comprehensions</item>
-      <item>How to communicate with the outside world and/or software
-       written in other languages (ports). There is however a separate
-       tutorial for this, <em>Interoperability Tutorial</em></item>
-      <item>Very few of the Erlang libraries have been touched on (for
-       example file handling)</item>
-      <item>OTP has been totally skipped and in consequence the Mnesia
-       database has been skipped.</item>
-      <item>Hash tables for Erlang terms (ETS)</item>
-      <item>Changing code in running systems</item>
+      <item>References.</item>
+      <item>Local error handling (catch/throw).</item>
+      <item>Single direction links (monitor).</item>
+      <item>Handling of binary data (binaries / bit syntax).</item>
+      <item>List comprehensions.</item>
+      <item>How to communicate with the outside world and software
+        written in other languages (ports);
+        this is described in
+        <seealso marker="doc/tutorial:introduction#interoperability tutorial">
+        Interoperability Tutorial</seealso>.</item>
+      <item>Erlang libraries (for example, file handling).</item>
+      <item>OTP and (in consequence) the Mnesia database.</item>
+      <item>Hash tables for Erlang terms (ETS).</item>
+      <item>Changing code in running systems.</item>
     </list>
   </section>
 </chapter>
diff --git a/system/doc/getting_started/records_macros.xml b/system/doc/getting_started/records_macros.xml
index 73c8ce5c8d..bec751fea2 100644
--- a/system/doc/getting_started/records_macros.xml
+++ b/system/doc/getting_started/records_macros.xml
@@ -29,27 +29,32 @@
     <file>record_macros.xml</file>
   </header>
   <p>Larger programs are usually written as a collection of files with
-    a well defined interface between the various parts.</p>
+    a well-defined interface between the various parts.</p>
 
   <section>
     <title>The Larger Example Divided into Several Files</title>
-    <p>To illustrate this, we will divide the messenger example from
-      the previous chapter into five files.</p>
-    <taglist>
-      <tag><c>mess_config.hrl</c></tag>
-      <item>header file for configuration data</item>
-      <tag><c>mess_interface.hrl</c></tag>
-      <item>interface definitions between the client and the messenger</item>
-      <tag><c>user_interface.erl</c></tag>
-      <item>functions for the user interface</item>
-      <tag><c>mess_client.erl</c></tag>
-      <item>functions for the client side of the messenger</item>
-      <tag><c>mess_server.erl</c></tag>
-      <item>functions for the server side of the messenger</item>
-    </taglist>
-    <p>While doing this we will also clean up the message passing
-      interface between the shell, the client and the server and define
-      it using <em>records</em>, we will also introduce <em>macros</em>.</p>
+    <p>To illustrate this, the messenger example from
+      the previous section is divided into the following five files:</p>
+    <list type="bulleted">
+      <item>
+      <p><c>mess_config.hrl</c></p>
+      <p>Header file for configuration data</p></item>
+      <item>
+      <p><c>mess_interface.hrl</c></p>
+      <p>Interface definitions between the client and the messenger</p></item>
+      <item>
+      <p><c>user_interface.erl</c></p>
+      <p>Functions for the user interface</p></item>
+      <item>
+      <p><c>mess_client.erl</c></p>
+      <p>Functions for the client side of the messenger</p></item>
+      <item>
+      <p><c>mess_server.erl</c></p>
+      <p>Functions for the server side of the messenger</p></item>
+    </list>
+    <p>While doing this, the message passing interface between the shell,
+      the client, and the server is cleaned up and is defined
+      using <em>records</em>. Also, <em>macros</em> are introduced:</p>
     <code type="none">
 %%%----FILE mess_config.hrl----
 
@@ -244,14 +249,14 @@ server_transfer(From, Name, To, Message, User_List) ->
 
   <section>
     <title>Header Files</title>
-    <p>You will see some files above with extension <c>.hrl</c>. These
-      are header files which are included in the <c>.erl</c> files by:</p>
+    <p>As shown above, some files have extension <c>.hrl</c>. These
+      are header files that are included in the <c>.erl</c> files by:</p>
     <code type="none">
 -include("File_Name").</code>
     <p>for example:</p>
     <code type="none">
 -include("mess_interface.hrl").</code>
-    <p>In our case above the file is fetched from the same directory as
+    <p>In the case above the file is fetched from the same directory as
       all the other files in the messenger example. (*manual*).</p>
     <p>.hrl files can contain any valid Erlang code but are most often
       used for record and macro definitions.</p>
@@ -265,64 +270,63 @@ server_transfer(From, Name, To, Message, User_List) ->
     <p>For example:</p>
     <code type="none">
 -record(message_to,{to_name, message}).</code>
-    <p>This is exactly equivalent to:</p>
+    <p>This is equivalent to:</p>
     <code type="none">
 {message_to, To_Name, Message}</code>
-    <p>Creating record, is best illustrated by an example:</p>
+    <p>Creating a record is best illustrated by an example:</p>
     <code type="none">
 #message_to{message="hello", to_name=fred)</code>
-    <p>This will create:</p>
+    <p>This creates:</p>
     <code type="none">
 {message_to, fred, "hello"}</code>
-    <p>Note that you don't have to worry about the order you assign
+    <p>Notice that you do not have to worry about the order you assign
       values to the various parts of the records when you create it.
       The advantage of using records is that by placing their
       definitions in header files you can conveniently define
-      interfaces which are easy to change. For example, if you want to
-      add a new field to the record, you will only have to change
+      interfaces that are easy to change. For example, if you want to
+      add a new field to the record, you only have to change
       the code where the new field is used and not at every place
       the record is referred to. If you leave out a field when creating
-      a record, it will get the value of the atom undefined. (*manual*)</p>
+      a record, it gets the value of the atom <c>undefined</c>. (*manual*)</p>
     <p>Pattern matching with records is very similar to creating
       records. For example, inside a <c>case</c> or <c>receive</c>:</p>
     <code type="none">
 #message_to{to_name=ToName, message=Message} -></code>
-    <p>is the same as:</p>
+    <p>This is the same as:</p>
     <code type="none">
 {message_to, ToName, Message}</code>
   </section>
 
   <section>
     <title>Macros</title>
-    <p>The other thing we have added to the messenger is a macro.
+    <p>Another thing that has been added to the messenger is a macro.
       The file <c>mess_config.hrl</c> contains the definition:</p>
     <code type="none">
 %%% Configure the location of the server node,
 -define(server_node, messenger@super).</code>
-    <p>We include this file in mess_server.erl:</p>
+    <p>This file is included in <c>mess_server.erl</c>:</p>
     <code type="none">
 -include("mess_config.hrl").</code>
     <p>Every occurrence of <c>?server_node</c> in <c>mess_server.erl</c>
-      will now be replaced by <c>messenger@super</c>.</p>
-    <p>The other place a macro is used is when we spawn the server
-      process:</p>
+      is now replaced by <c>messenger@super</c>.</p>
+    <p>A macro is also used when spawning the server process:</p>
     <code type="none">
 spawn(?MODULE, server, [])</code>
-    <p>This is a standard macro (i.e. defined by the system, not
-      the user). <c>?MODULE</c> is always replaced by the name of
-      current module (i.e. the <c>-module</c> definition near the start
+    <p>This is a standard macro (that is, defined by the system, not by
+      the user). <c>?MODULE</c> is always replaced by the name of the
+      current module (that is, the <c>-module</c> definition near the start
       of the file). There are more advanced ways of using macros with,
-      for example parameters (*manual*).</p>
+      for example, parameters (*manual*).</p>
     <p>The three Erlang (<c>.erl</c>) files in the messenger example are
       individually compiled into object code file (<c>.beam</c>).
       The Erlang system loads and links these files into the system
-      when they are referred to during execution of the code. In our
-      case we simply have put them in the same directory which is our
-      current working directory (i.e. the place we have done "cd" to).
+      when they are referred to during execution of the code. In this
+      case, they are simply put in our current working directory
+      (that is, the place you have done "cd" to).
       There are ways of putting the <c>.beam</c> files in other
       directories.</p>
     <p>In the messenger example, no assumptions have been made about
-      what the message being sent is. It could be any valid Erlang term.</p>
+      what the message being sent is. It can be any valid Erlang term.</p>
   </section>
 </chapter>
 
diff --git a/system/doc/getting_started/robustness.xml b/system/doc/getting_started/robustness.xml
index e8fb81d5e8..82fe0cbc4f 100644
--- a/system/doc/getting_started/robustness.xml
+++ b/system/doc/getting_started/robustness.xml
@@ -28,27 +28,27 @@
     <rev></rev>
     <file>robustness.xml</file>
   </header>
-  <p>There are several things which are wrong with
-    the <seealso marker="conc_prog#ex">messenger example</seealso> from
-    the previous chapter. For example, if a node where a user is logged
-    on goes down without doing a log off, the user will remain in
-    the server's <c>User_List</c> but the client will disappear thus
-    making it impossible for the user to log on again as the server
-    thinks the user already logged on.</p>
+  <p>Several things are wrong with the messenger example in
+    <seealso marker="conc_prog#ex">A Larger Example</seealso>.
+    For example, if a node where a user is logged
+    on goes down without doing a logoff, the user remains in
+    the server's <c>User_List</c>, but the client disappears. This
+    makes it impossible for the user to log on again as the server
+    thinks the user already is logged on.</p>
   <p>Or what happens if the server goes down in the middle of sending a
-    message leaving the sending client hanging for ever in
+    message, leaving the sending client hanging forever in
     the <c>await_result</c> function?</p>
 
   <section>
-    <title>Timeouts</title>
-    <p>Before improving the messenger program we will look into some
+    <title>Time-outs</title>
+    <p>Before improving the messenger program, let us look at some
       general principles, using the ping pong program as an example.
       Recall that when "ping" finishes, it tells "pong" that it has
       done so by sending the atom <c>finished</c> as a message to "pong"
-      so that "pong" could also finish. Another way to let "pong"
-      finish, is to make "pong" exit if it does not receive a message
-      from ping within a certain time, this can be done by adding a
-      <em>timeout</em> to <c>pong</c> as shown in the following example:</p>
+      so that "pong" can also finish. Another way to let "pong"
+      finish is to make "pong" exit if it does not receive a message
+      from ping within a certain time. This can be done by adding a
+      <em>time-out</em> to <c>pong</c> as shown in the following example:</p>
     <code type="none">
 -module(tut19).
 
@@ -80,9 +80,9 @@ start_pong() ->
 
 start_ping(Pong_Node) ->
     spawn(tut19, ping, [3, Pong_Node]).</code>
-    <p>After we have compiled this and copied the <c>tut19.beam</c>
-      file to the necessary directories:</p>
-    <p>On (pong@kosken):</p>
+    <p>After this is compiled and the file <c>tut19.beam</c>
+      is copied to the necessary directories, the following is seen
+     on (pong@kosken): </p>
     <pre>
 (pong@kosken)1> <input>tut19:start_pong().</input>
 true
@@ -90,7 +90,7 @@ Pong received ping
 Pong received ping
 Pong received ping
 Pong timed out</pre>
-    <p>On (ping@gollum):</p>
+    <p>And the following is seen on (ping@gollum):</p>
     <pre>
 (ping@gollum)1> <input>tut19:start_ping(pong@kosken).</input>
 &lt;0.36.0>
@@ -98,7 +98,7 @@ Ping received pong
 Ping received pong
 Ping received pong
 ping finished   </pre>
-    <p>(The timeout is set in:</p>
+    <p>The time-out is set in:</p>
     <code type="none">
 pong() ->
     receive
@@ -109,35 +109,36 @@ pong() ->
     after 5000 ->
             io:format("Pong timed out~n", [])
     end.</code>
-    <p>We start the timeout (<c>after 5000</c>) when we enter
-      <c>receive</c>. The timeout is canceled if <c>{ping,Ping_PID}</c>
+    <p>The time-out (<c>after 5000</c>) is started when
+      <c>receive</c> is entered.
+      The time-out is canceled if <c>{ping,Ping_PID}</c>
       is received. If <c>{ping,Ping_PID}</c> is not received,
-      the actions following the timeout will be done after 5000
+      the actions following the time-out are done after 5000
       milliseconds. <c>after</c> must be last in the <c>receive</c>,
-      i.e. preceded by all other message reception specifications in
-      the <c>receive</c>. Of course we could also call a function which
-      returned an integer for the timeout:</p>
+      that is, preceded by all other message reception specifications in
+      the <c>receive</c>. It is also possible to call a function that
+      returned an integer for the time-out:</p>
     <code type="none">
 after pong_timeout() -></code>
-    <p>In general, there are better ways than using timeouts to
-      supervise parts of a distributed Erlang system. Timeouts are
-      usually appropriate to supervise external events, for example if
+    <p>In general, there are better ways than using time-outs to
+      supervise parts of a distributed Erlang system. Time-outs are
+      usually appropriate to supervise external events, for example, if
       you have expected a message from some external system within a
-      specified time. For example, we could use a timeout to log a user
-      out of the messenger system if they have not accessed it, for
-      example, in ten minutes.</p>
+      specified time. For example, a time-out can be used to log a user
+      out of the messenger system if they have not accessed it for,
+      say, ten minutes.</p>
   </section>
 
   <section>
     <title>Error Handling</title>
-    <p>Before we go into details of the supervision and error handling
-      in an Erlang system, we need see how Erlang processes terminate,
+    <p>Before going into details of the supervision and error handling
+      in an Erlang system, let us see how Erlang processes terminate,
       or in Erlang terminology, <em>exit</em>.</p>
     <p>A process which executes <c>exit(normal)</c> or simply runs out
       of things to do has a <em>normal</em> exit.</p>
-    <p>A process which encounters a runtime error (e.g. divide by zero,
-      bad match, trying to call a function which doesn't exist etc)
-      exits with an error, i.e. has an <em>abnormal</em> exit. A
+    <p>A process which encounters a runtime error (for example, divide by zero,
+      bad match, trying to call a function that does not exist and so on)
+      exits with an error, that is, has an <em>abnormal</em> exit. A
       process which executes
       <seealso marker="erts:erlang#exit/1">exit(Reason)</seealso>
       where <c>Reason</c> is any Erlang term except the atom
@@ -151,18 +152,23 @@ after pong_timeout() -></code>
       links to.</p>
     <p>The signal carries information about the pid it was sent from and
       the exit reason.</p>
-    <p>The default behaviour of a process which receives a normal exit
+    <p>The default behaviour of a process that receives a normal exit
       is to ignore the signal.</p>
-    <p>The default behaviour in the two other cases (i.e. abnormal exit)
-      above is to bypass all messages to the receiving process and to
-      kill it and to propagate the same error signal to the killed
-      process' links. In this way you can connect all processes in a
-      transaction together using links and if one of the processes
-      exits abnormally, all the processes in the transaction will be
-      killed. As we often want to create a process and link to it at
+    <p>The default behaviour in the two other cases (that is, abnormal exit)
+      above is to:</p>
+    <list type="bulleted">
+      <item>Bypass all messages to the receiving process.</item>
+      <item>Kill the receiving process.</item>
+      <item>Propagate the same error signal to the links of the
+      killed process.</item>
+    </list>
+    <p>In this way you can connect all processes in a
+      transaction together using links. If one of the processes
+      exits abnormally, all the processes in the transaction are
+      killed. As it is often wanted to create a process and link to it at
       the same time, there is a special BIF,
       <seealso marker="erts:erlang#spawn_link/1">spawn_link</seealso>
-      which does the same as <c>spawn</c>, but also creates a link to
+      that does the same as <c>spawn</c>, but also creates a link to
       the spawned process.</p>
     <p>Now an example of the ping pong example using links to terminate
       "pong":</p>
@@ -208,13 +214,13 @@ Pong received ping
 Ping received pong</pre>
     <p>This is a slight modification of the ping pong program where both
       processes are spawned from the same <c>start/1</c> function,
-      where the "ping" process can be spawned on a separate node. Note
+      and the "ping" process can be spawned on a separate node. Notice
       the use of the <c>link</c> BIF. "Ping" calls
-      <c>exit(ping)</c> when it finishes and this will cause an exit
-      signal to be sent to "pong" which will also terminate.</p>
+      <c>exit(ping)</c> when it finishes and this causes an exit
+      signal to be sent to "pong", which also terminates.</p>
     <p>It is possible to modify the default behaviour of a process so
       that it does not get killed when it receives abnormal exit
-      signals, but all signals will be turned into normal messages with
+      signals. Instead, all signals are turned into normal messages on
       the format <c>{'EXIT',FromPID,Reason}</c> and added to the end of
       the receiving process' message queue. This behaviour is set by:</p>
     <code type="none">
@@ -223,8 +229,8 @@ process_flag(trap_exit, true)</code>
       <seealso marker="erts:erlang#process_flag/2">erlang(3)</seealso>.
       Changing the default behaviour of a process in this way is
       usually not done in standard user programs, but is left to
-      the supervisory programs in OTP (but that's another tutorial).
-      However we will modify the ping pong program to illustrate exit
+      the supervisory programs in OTP.
+      However, the ping pong program is modified to illustrate exit
       trapping.</p>
     <code type="none">
 -module(tut21).
@@ -277,7 +283,7 @@ pong exiting, got {'EXIT',&lt;3820.39.0>,ping}</pre>
 
   <section>
     <title>The Larger Example with Robustness Added</title>
-    <p>Now we return to the messenger program and add changes which
+    <p>Let us return to the messenger program and add changes to
       make it more robust:</p>
     <code type="none">
 %%% Message passing utility.  
@@ -449,35 +455,34 @@ await_result() ->
             io:format("No response from server~n", []),
             exit(timeout)
     end.</code>
-    <p>We have added the following changes:</p>
+    <p>The following changes are added:</p>
     <p>The messenger server traps exits. If it receives an exit signal,
-      <c>{'EXIT',From,Reason}</c> this means that a client process has
-      terminated or is unreachable because:</p>
+      <c>{'EXIT',From,Reason}</c>, this means that a client process has
+      terminated or is unreachable for one of the following reasons:</p>
     <list type="bulleted">
-      <item>the user has logged off (we have removed the "logoff"
-       message),</item>
-      <item>the network connection to the client is broken,</item>
-      <item>the node on which the client process resides has gone down,
-       or</item>
-      <item>the client processes has done some illegal operation.</item>
+      <item>The user has logged off (the "logoff"
+       message is removed).</item>
+      <item>The network connection to the client is broken.</item>
+      <item>The node on which the client process resides has gone down.</item>
+      <item>The client processes has done some illegal operation.</item>
     </list>
-    <p>If we receive an exit signal as above, we delete the tuple,
-      <c>{From,Name}</c> from the servers <c>User_List</c> using
+    <p>If an exit signal is received as above, the tuple
+      <c>{From,Name}</c> is deleted from the servers <c>User_List</c> using
       the <c>server_logoff</c> function. If the node on which the server
       runs goes down, an exit signal (automatically generated by
-      the system), will be sent to all of the client processes:
+      the system) is sent to all of the client processes:
       <c>{'EXIT',MessengerPID,noconnection}</c> causing all the client
       processes to terminate.</p>
-    <p>We have also introduced a timeout of five seconds in
-      the <c>await_result</c> function. I.e. if the server does not
+    <p>Also, a time-out of five seconds has been introduced in
+      the <c>await_result</c> function. That is, if the server does not
       reply within five seconds (5000 ms), the client terminates. This
-      is really only needed in the logon sequence before the client and
+      is only needed in the logon sequence before the client and the
       server are linked.</p>
-    <p>An interesting case is if the client was to terminate before
+    <p>An interesting case is if the client terminates before
       the server links to it. This is taken care of because linking to a
       non-existent process causes an exit signal,
-      <c>{'EXIT',From,noproc}</c>, to be automatically generated as if
-      the process terminated immediately after the link operation.</p>
+      <c>{'EXIT',From,noproc}</c>, to be automatically generated. This is
+      as if the process terminated immediately after the link operation.</p>
   </section>
 </chapter>
 
diff --git a/system/doc/getting_started/seq_prog.xml b/system/doc/getting_started/seq_prog.xml
index 699b9487ed..5d96aed8d4 100644
--- a/system/doc/getting_started/seq_prog.xml
+++ b/system/doc/getting_started/seq_prog.xml
@@ -31,11 +31,15 @@
 
   <section>
     <title>The Erlang Shell</title>
-    <p>Most operating systems have a command interpreter or shell- Unix
-      and Linux have many, while Windows has the Command Prompt. Erlang has
-      its own shell where you can directly write bits of Erlang code
-      and evaluate (run) them to see what happens (see
-      <seealso marker="stdlib:shell">shell(3)</seealso>). Start
+    <p>
+      Most operating systems have a command interpreter or shell, UNIX
+      and Linux have many, Windows has the command prompt. Erlang has
+      its own shell where bits of Erlang code can be written directly,
+      and be evaluated to see what happens
+      (see the <seealso marker="stdlib:shell">shell(3)</seealso>
+      manual page in STDLIB).
+    </p>
+    <p>Start
       the Erlang shell (in Linux or UNIX) by starting a shell or
       command interpreter in your operating system and typing
       <c>erl</c>. You will see something like this.</p>
@@ -45,41 +49,39 @@ Erlang R15B (erts-5.9.1) [source] [smp:8:8] [rq:8] [async-threads:0] [hipe] [ker
 
 Eshell V5.9.1  (abort with ^G)
 1></pre>
-    <p>Now type in "2 + 5." as shown below.</p>
+    <p>Type "2 + 5." in the shell and then press Enter (carriage return).
+    Notice that you tell the shell you are done entering code by finishing
+    with a full stop "." and a carriage return.</p>
     <pre>
 1> <input>2 + 5.</input>
 7
 2></pre>
-    <p>In Windows, the shell is started by double-clicking on the Erlang
-      shell icon.</p>
-    <p>You'll notice that the Erlang shell has numbered the lines that
-      can be entered, (as 1&gt; 2&gt;) and that it has correctly told you
-      that 2 + 5 is 7! Also notice that you have to tell it you are
-      done entering code by finishing with a full stop "." and a
-      carriage return. If you make mistakes writing things in the shell,
-      you can delete things by using the backspace key as in most
-      shells. There are many more editing commands in the shell
-      (See the chapter <seealso marker="erts:tty">"tty - A command line interface"</seealso> in ERTS User's Guide).</p>
-    <p>(Note: you will find a lot of line numbers given by the shell
-      out of sequence in this tutorial as it was written and the code
-      tested in several sessions.)</p>
-    <p>Now let's try a more complex calculation.</p>
+    <p>As shown, the Erlang shell numbers the lines that
+      can be entered, (as 1&gt; 2&gt;) and that it correctly says
+      that 2 + 5 is 7. If you make writing mistakes in the shell,
+      you can delete with the backspace key, as in most shells.
+      There are many more editing commands in the shell
+      (see <seealso marker="erts:tty">tty - A command line interface</seealso> in ERTS User's Guide).</p>
+    <p>(Notice that many line numbers given by the shell in the
+      following examples are out of sequence. This is because this
+      tutorial was written and code-tested in separate sessions).</p>
+    <p>Here is a bit more complex calculation:</p>
     <pre>
 2> <input>(42 + 77) * 66 / 3.</input>
 2618.0</pre>
-    <p>Here you can see the use of brackets and the multiplication
-      operator "*" and division operator "/", just as in normal
-      arithmetic (see the chapter
-      <seealso marker="doc/reference_manual:expressions">"Arithmetic Expressions"</seealso> in the Erlang Reference Manual).</p>
-    <p>To shutdown the Erlang system and the Erlang shell type
-      Control-C. You will see the following output:</p>
+    <p>Notice the use of brackets, the multiplication operator "*",
+      and the division operator "/", as in normal arithmetic (see
+      <seealso marker="doc/reference_manual:expressions">Expressions</seealso>).</p>
+    <p>Press Control-C to shut down the Erlang system and the Erlang
+      shell.</p>
+    <p>The following output is shown:</p>
     <pre>
 BREAK: (a)bort (c)ontinue (p)roc info (i)nfo (l)oaded
        (v)ersion (k)ill (D)b-tables (d)istribution
 <input>a</input>
 %</pre>
     <p>Type "a" to leave the Erlang system.</p>
-    <p>Another way to shutdown the Erlang system is by entering
+    <p>Another way to shut down the Erlang system is by entering
       <c>halt()</c>:</p>
     <pre>
 3> <input>halt().</input>
@@ -88,67 +90,70 @@ BREAK: (a)bort (c)ontinue (p)roc info (i)nfo (l)oaded
 
   <section>
     <title>Modules and Functions</title>
-    <p>A programming language isn't much use if you can just run code
+    <p>A programming language is not much use if you only can run code
       from the shell. So here is a small Erlang program. Enter it into
-      a file called <c>tut.erl</c> (the file name <c>tut.erl</c> is
-      important, also make sure that it is in the same directory as
-      the one where you started <c>erl</c>) using a suitable
-      text editor. If you are lucky your editor will have an Erlang
-      mode which will make it easier for you to enter and format your
-      code nicely (see the chapter
-      <seealso marker="tools:erlang_mode_chapter">"The Erlang mode for Emacs"</seealso> in Tools User's Guide), but you can manage
-      perfectly well without. Here's the code to enter:</p>
+      a file named <c>tut.erl</c> using a suitable
+      text editor. The file name <c>tut.erl</c> is important, and also
+      that it is in the same directory as the one where you started
+      <c>erl</c>). If you are lucky your editor has an Erlang mode
+      that makes it easier for you to enter and format your code
+      nicely (see <seealso
+      marker="tools:erlang_mode_chapter">The Erlang mode for
+      Emacs</seealso> in Tools User's Guide), but you can manage
+      perfectly well without. Here is the code to enter:</p>
     <code type="none">
 -module(tut).
 -export([double/1]).
 
 double(X) ->
     2 * X.</code>
-    <p>It's not hard to guess that this "program" doubles the value of
-      numbers. I'll get back to the first two lines later. Let's compile
-      the program. This can be done in your Erlang shell as shown below:</p>
+    <p>It is not hard to guess that this program doubles the value of
+      numbers. The first two lines of the code are described later.
+      Let us compile the program. This can be done in an Erlang shell
+      as follows, where <c>c</c> means compile:</p>
     <pre>
 3> <input>c(tut).</input>
 {ok,tut}</pre>
-    <p>The <c>{ok,tut}</c> tells you that the compilation was OK. If it
-      said "error" instead, you have made some mistake in the text you
-      entered and there will also be error messages to give you some
-      idea as to what has gone wrong so you can change what you have
-      written and try again.</p>
-    <p>Now let's run the program.</p>
+    <p>The <c>{ok,tut}</c> means that the compilation is OK. If it
+      says "error" it means that there is some mistake in the text
+      that you entered. Additional error messages gives an idea to
+      what is wrong so you can modify the text and then try to compile
+      the program again.</p>
+    <p>Now run the program:</p>
     <pre>
 4> <input>tut:double(10).</input>
 20</pre>
-    <p>As expected double of 10 is 20.</p>
-    <p>Now let's get back to the first two lines. Erlang programs are
-      written in files. Each file contains what we call an Erlang
-      <em>module</em>. The first line of code in the module tells us
-      the name of the module (see the chapter
-      <seealso marker="doc/reference_manual:modules">"Modules"</seealso>
-      in the Erlang Reference Manual).</p>
+    <p>As expected, double of 10 is 20.</p>
+    <p>Now let us get back to the first two lines of the code. Erlang
+      programs are
+      written in files. Each file contains an Erlang
+      <em>module</em>. The first line of code in the module is
+      the module name (see
+      <seealso marker="doc/reference_manual:modules">Modules</seealso>):</p>
     <code type="none">
 -module(tut).</code>
-    <p>This tells us that the module is called <em>tut</em>. Note
-      the "." at the end of the line. The files which are used to store
+    <p>Thus, the module is called <em>tut</em>. Notice
+      the full stop "." at the end of the line. The files which are
+      used to store
       the module must have the same name as the module but with
-      the extension ".erl". In our case the file name is <c>tut.erl</c>.
-      When we use a function in another module, we use the syntax,
-      <c>module_name:function_name(arguments)</c>. So</p>
+      the extension ".erl". In this case the file name is <c>tut.erl</c>.
+      When using a function in another module, the syntax
+      <c>module_name:function_name(arguments)</c> is used. So the
+      following means call function <c>double</c> in module <c>tut</c>
+      with argument "10".</p>
     <pre>
 4> <input>tut:double(10).</input></pre>
-    <p>means call function <c>double</c> in module <c>tut</c> with
-      argument "10".</p>
-    <p>The second line:</p>
+    <p>The second line says that the module <c>tut</c> contains a
+      function called <c>double</c>, which takes one argument
+      (<c>X</c> in our example):</p>
     <code type="none">
 -export([double/1]).</code>
-    <p>says that the module <c>tut</c> contains a function called
-      <c>double</c> which takes one argument (<c>X</c> in our example)
-      and that this function can be called from outside the module
-      <c>tut</c>. More about this later. Again note the "." at the end
-      of the line.</p>
-    <p>Now for a more complicated example, the factorial of a number
-      (e.g. factorial of 4 is 4 * 3 * 2 * 1). Enter the following code
-      in a file called <c>tut1.erl</c>.</p>
+    <p>The second line also says that this function can be called from
+      outside the module <c>tut</c>. More about this later. Again,
+      notice the "." at the end of the line.</p>
+    <p>Now for a more complicated example, the factorial of a number.
+      For example, the factorial of 4 is 4 * 3 * 2 * 1, which equals 24.</p>
+    <p>Enter the following code in a file named <c>tut1.erl</c>:</p>
     <code type="none">
 -module(tut1).
 -export([fac/1]).
@@ -157,30 +162,34 @@ fac(1) ->
     1;
 fac(N) ->
     N * fac(N - 1).</code>
-    <p>Compile the file</p>
-    <pre>
-5> <input>c(tut1).</input>
-{ok,tut1}</pre>
-    <p>And now calculate the factorial of 4.</p>
-    <pre>
-6> <input>tut1:fac(4).</input>
-24</pre>
-    <p>The first part:</p>
+    <p>So this is a module, called <c>tut1</c> that contains a
+      function called <c>fac></c>, which takes one argument,
+      <c>N</c>.</p>
+    <p>The first part says that the factorial of 1 is 1.:</p>
     <code type="none">
 fac(1) ->
     1;</code>
-    <p>says that the factorial of 1 is 1. Note that we end this part
-      with a ";" which indicates that there is more of this function to
-      come. The second part:</p>
+    <p>Notice that this part ends with a semicolon ";" that indicates
+      that there is more of the function <c>fac></c> to come.</p>
+    <p>The second part says that the factorial of N is N multiplied
+      by the factorial of N - 1:</p>
     <code type="none">
 fac(N) ->
     N * fac(N - 1).</code>
-    <p>says that the factorial of N is N multiplied by the factorial of
-      N - 1. Note that this part ends with a "." saying that there are
+    <p>Notice that this part ends with a "." saying that there are
       no more parts of this function.</p>
-    <p>A function can have many arguments. Let's expand the module
-      <c>tut1</c> with the rather stupid function to multiply two
-      numbers:</p>
+    <p>Compile the file:</p>
+    <pre>
+5> <input>c(tut1).</input>
+{ok,tut1}</pre>
+    <p>And now calculate the factorial of 4.</p>
+    <pre>
+6> <input>tut1:fac(4).</input>
+24</pre>
+    <p>Here the function <c>fac></c> in module <c>tut1</c> is called
+      with argument <c>4</c>.</p>
+    <p>A function can have many arguments. Let us expand the module
+      <c>tut1</c> with the function to multiply two numbers:</p>
     <code type="none">
 -module(tut1).
 -export([fac/1, mult/2]).
@@ -192,36 +201,36 @@ fac(N) ->
 
 mult(X, Y) ->
     X * Y.</code>
-    <p>Note that we have also had to expand the <c>-export</c> line
+    <p>Notice that it is also required to expand the <c>-export</c> line
       with the information that there is another function <c>mult</c>
       with two arguments.</p>
     <p>Compile:</p>
     <pre>
 7> <input>c(tut1).</input>
 {ok,tut1}</pre>
-    <p>and try it out:</p>
+    <p>Try out the new function <c>mult</c>:</p>
     <pre>
 8> <input>tut1:mult(3,4).</input>
 12</pre>
-    <p>In the example above the numbers are integers and the arguments
-      in the functions in the code, <c>N</c>, <c>X</c>, <c>Y</c> are
+    <p>In this example the numbers are integers and the arguments
+      in the functions in the code <c>N</c>, <c>X</c>, and <c>Y</c> are
       called variables. Variables must start with a capital letter
-      (see the chapter
-      <seealso marker="doc/reference_manual:expressions">"Variables"</seealso>
-      in the Erlang Reference Manual). Examples of variables could be
-      <c>Number</c>, <c>ShoeSize</c>, <c>Age</c> etc.</p>
+      (see
+      <seealso marker="doc/reference_manual:expressions">Variables</seealso>).
+      Examples of variables are
+      <c>Number</c>, <c>ShoeSize</c>, and <c>Age</c>.</p>
   </section>
 
   <section>
     <title>Atoms</title>
-    <p>Atoms are another data type in Erlang. Atoms start with a small
-      letter ((see the chapter
-      <seealso marker="doc/reference_manual:data_types">"Atom"</seealso>
-      in the Erlang Reference Manual)), for example: <c>charles</c>,
-      <c>centimeter</c>, <c>inch</c>. Atoms are simply names, nothing
-      else. They are not like variables which can have a value.</p>
-    <p>Enter the next program (file: <c>tut2.erl</c>) which could be
-      useful for converting from inches to centimeters and vice versa:</p>
+    <p>Atom is another data type in Erlang. Atoms start with a small
+      letter (see
+      <seealso marker="doc/reference_manual:data_types">Atom</seealso>),
+      for example, <c>charles</c>,
+      <c>centimeter</c>, and <c>inch</c>. Atoms are simply names, nothing
+      else. They are not like variables, which can have a value.</p>
+    <p>Enter the next program in a file named <c>tut2.erl</c>). It can be
+      useful for converting from inches to centimeters and conversely:</p>
     <code type="none">
 -module(tut2).
 -export([convert/2]).
@@ -231,27 +240,30 @@ convert(M, inch) ->
 
 convert(N, centimeter) ->
     N * 2.54.</code>
-    <p>Compile and test:</p>
+    <p>Compile:</p>
     <pre>
 9> <input>c(tut2).</input>
 {ok,tut2}
+</pre>
+    <p>Test:</p>
+ <pre>
 10> <input>tut2:convert(3, inch).</input>
 1.1811023622047243
 11> <input>tut2:convert(7, centimeter).</input>
 17.78</pre>
-    <p>Notice that I have introduced decimals (floating point numbers)
-      without any explanation, but I guess you can cope with that.</p>
-    <p>See what happens if I enter something other than centimeter or
-      inch in the convert function:</p>
+    <p>Notice the introduction of decimals (floating point numbers)
+      without any explanation. Hopefully you can cope with that.</p>
+    <p>Let us see what happens if something other than <c>centimeter</c> or
+      <c>inch</c> is entered in the <c>convert</c> function:</p>
     <pre>
 12> <input>tut2:convert(3, miles).</input>
 ** exception error: no function clause matching tut2:convert(3,miles) (tut2.erl, line 4)</pre>
     <p>The two parts of the <c>convert</c> function are called its
-      clauses. Here we see that "miles" is not part of either of
-      the clauses. The Erlang system can't <em>match</em> either of
-      the clauses so we get an error message <c>function_clause</c>.
-      The shell formats the error message nicely, but the error tuple 
-      is saved in the shell's history list and can be output by the shell 
+      clauses. As shown, <c>miles</c> is not part of either of
+      the clauses. The Erlang system cannot <em>match</em> either of
+      the clauses so an error message <c>function_clause</c> is returned.
+      The shell formats the error message nicely, but the error tuple
+      is saved in the shell's history list and can be output by the shell
       command <c>v/1</c>:</p>
     <pre>
 13> <input>v(12).</input>
@@ -271,14 +283,15 @@ convert(N, centimeter) ->
       Consider:</p>
     <code type="none">
 tut2:convert(3, inch).</code>
-    <p>Does this mean that 3 is in inches? Or that 3 is in centimeters
-      and we want to convert it to inches? So Erlang has a way to group
-      things together to make things more understandable. We call these
-      <em>tuples</em>. Tuples are surrounded by "{" and "}".</p>
-    <p>So we can write <c>{inch,3}</c> to denote 3 inches and
-      <c>{centimeter,5}</c> to denote 5 centimeters. Now let's write a
-      new program which converts centimeters to inches and vice versa.
-      (file <c>tut3.erl</c>).</p>
+    <p>Does this mean that 3 is in inches? Or does it mean that 3 is
+      in centimeters
+      and is to be converted to inches? Erlang has a way to group
+      things together to make things more understandable. These are called
+      <em>tuples</em> and are surrounded by curly brackets, "{" and "}".</p>
+    <p>So, <c>{inch,3}</c> denotes 3 inches and
+      <c>{centimeter,5}</c> denotes 5 centimeters. Now let us write a
+      new program that converts centimeters to inches and conversely.
+      Enter the following code in a file called <c>tut3.erl</c>):</p>
     <code type="none">
 -module(tut3).
 -export([convert_length/1]).
@@ -295,47 +308,48 @@ convert_length({inch, Y}) ->
 {centimeter,12.7}
 16> <input>tut3:convert_length(tut3:convert_length({inch, 5})).</input>
 {inch,5.0}</pre>
-    <p>Note on line 16 we convert 5 inches to centimeters and back
-      again and reassuringly get back to the original value. I.e
+    <p>Notice on line 16 that 5 inches is converted to centimeters and back
+      again and reassuringly get back to the original value. That is,
       the argument to a function can be the result of another function.
-      Pause for a moment and consider how line 16 (above) works.
-      The argument we have given the function <c>{inch,5}</c> is first
-      matched against the first head clause of <c>convert_length</c>
-      i.e. <c>convert_length({centimeter,X})</c> where it can be seen
+      Consider how line 16 (above) works.
+      The argument given to the function <c>{inch,5}</c> is first
+      matched against the first head clause of <c>convert_length</c>,
+      that is, <c>convert_length({centimeter,X})</c>. It can be seen
       that <c>{centimeter,X}</c> does not match <c>{inch,5}</c>
-      (the head is the bit before the "-&gt;"). This having failed, we try
-      the head of the next clause i.e. <c>convert_length({inch,Y})</c>,
-      this matches and <c>Y</c> get the value 5.</p>
-    <p>We have shown tuples with two parts above, but tuples can have
-      as many parts as we want and contain any valid Erlang
+      (the head is the bit before the "-&gt;"). This having failed,
+      let us try
+      the head of the next clause that is, <c>convert_length({inch,Y})</c>.
+      This matches, and <c>Y</c> gets the value 5.</p>
+    <p>Tuples can have more than two parts, in fact
+      as many parts as you want, and contain any valid Erlang
       <em>term</em>. For example, to represent the temperature of
-      various cities of the world we could write:</p>
+      various cities of the world:</p>
     <code type="none">
 {moscow, {c, -10}}
 {cape_town, {f, 70}}
 {paris, {f, 28}}</code>
-    <p>Tuples have a fixed number of things in them. We call each thing
-      in a tuple an element. So in the tuple <c>{moscow,{c,-10}}</c>,
-      element 1 is <c>moscow</c> and element 2 is <c>{c,-10}</c>. I
-      have chosen <c>c</c> meaning Centigrade (or Celsius) and <c>f</c>
-      meaning Fahrenheit.</p>
+    <p>Tuples have a fixed number of items in them. Each item in a
+      tuple is called an <em>element</em>. In the tuple
+      <c>{moscow,{c,-10}}</c>, element 1 is <c>moscow</c> and element
+      2 is <c>{c,-10}</c>. Here <c>c</c> represents Celsius and
+      <c>f</c> Fahrenheit.</p>
   </section>
 
   <section>
     <title>Lists</title>
-    <p>Whereas tuples group things together, we also want to be able to
-      represent lists of things. Lists in Erlang are surrounded by "["
-      and "]". For example, a list of the temperatures of various cities
-      in the world could be:</p>
+    <p>Whereas tuples group things together, it is also needed to
+      represent lists of things. Lists in Erlang are surrounded by
+      square brackets, "[" and "]". For example, a list of the
+      temperatures of various cities in the world can be:</p>
     <code type="none">
 [{moscow, {c, -10}}, {cape_town, {f, 70}}, {stockholm, {c, -4}},
  {paris, {f, 28}}, {london, {f, 36}}]</code>
-    <p>Note that this list was so long that it didn't fit on one line.
-      This doesn't matter, Erlang allows line breaks at all "sensible
-      places" but not, for example, in the middle of atoms, integers
-      etc.</p>
-    <p>A very useful way of looking at parts of lists, is by using "|".
-      This is best explained by an example using the shell.</p>
+    <p>Notice that this list was so long that it did not fit on one line.
+      This does not matter, Erlang allows line breaks at all "sensible
+      places" but not, for example, in the middle of atoms, integers,
+       and others.</p>
+    <p>A useful way of looking at parts of lists, is by using "|".
+      This is best explained by an example using the shell:</p>
     <pre>
 17> <input>[First |TheRest] = [1,2,3,4,5].</input>
 [1,2,3,4,5]
@@ -343,9 +357,9 @@ convert_length({inch, Y}) ->
 1
 19> <input>TheRest.</input>
 [2,3,4,5]</pre>
-    <p>We use | to separate the first elements of the list from
-      the rest of the list. (<c>First</c> has got value 1 and
-      <c>TheRest</c> value [2,3,4,5].)</p>
+    <p>To separate the first elements of the list from the rest of the
+      list, <c>|</c> is used. <c>First</c> has got value 1 and
+      <c>TheRest</c> has got the value [2,3,4,5].</p>
     <p>Another example:</p>
     <pre>
 20> <input>[E1, E2 | R] = [1,2,3,4,5,6,7].</input>
@@ -356,10 +370,10 @@ convert_length({inch, Y}) ->
 2
 23> <input>R.</input>
 [3,4,5,6,7]</pre>
-    <p>Here we see the use of | to get the first two elements from
-      the list. Of course if we try to get more elements from the list
-      than there are elements in the list we will get an error. Note
-      also the special case of the list with no elements [].</p>
+    <p>Here you see the use of <c>|</c> to get the first two elements from
+      the list. If you try to get more elements from the list
+      than there are elements in the list, an error is returned. Notice
+      also the special case of the list with no elements, []:</p>
     <pre>
 24> <input>[A, B | C] = [1, 2].</input>
 [1,2]
@@ -369,13 +383,13 @@ convert_length({inch, Y}) ->
 2
 27> <input>C.</input>
 []</pre>
-    <p>In all the examples above, I have been using new variable names,
-      not reusing the old ones: <c>First</c>, <c>TheRest</c>, <c>E1</c>,
-      <c>E2</c>, <c>R</c>, <c>A</c>, <c>B</c>, <c>C</c>. The reason
+    <p>In the previous examples, new variable names are used, instead of
+      reusing the old ones: <c>First</c>, <c>TheRest</c>, <c>E1</c>,
+      <c>E2</c>, <c>R</c>, <c>A</c>, <c>B</c>, and <c>C</c>. The reason
       for this is that a variable can only be given a value once in its
-      context (scope). I'll get back to this later, it isn't so
-      peculiar as it sounds!</p>
-    <p>The following example shows how we find the length of a list:</p>
+      context (scope). More about this later.</p>
+    <p>The following example shows how to find the length of a list.
+     Enter the following code in a file named <c>tut4.erl</c>):</p>
     <code type="none">
 -module(tut4).
 
@@ -385,7 +399,7 @@ list_length([]) ->
     0;    
 list_length([First | Rest]) ->
     1 + list_length(Rest).</code>
-    <p>Compile (file <c>tut4.erl</c>) and test:</p>
+    <p>Compile and test:</p>
     <pre>
 28> <input>c(tut4).</input>
 {ok,tut4}
@@ -404,14 +418,14 @@ list_length([First | Rest]) ->
       <c>Rest</c>.</p>
     <p>(Advanced readers only: This is not tail recursive, there is a
       better way to write this function.)</p>
-    <p>In general we can say we use tuples where we would use "records"
-      or "structs" in other languages and we use lists when we want to
-      represent things which have varying sizes, (i.e. where we would
-      use linked lists in other languages).</p>
-    <p>Erlang does not have a string data type, instead strings can be
-      represented by lists of ASCII characters. So the list
-      <c>[97,98,99]</c> is equivalent to "abc". The Erlang shell is
-      "clever" and guesses the what sort of list we mean and outputs it
+    <p>In general, tuples are used where "records"
+      or "structs" are used in other languages. Also, lists are used when
+      representing things with varying sizes, that is, where
+      linked lists are used in other languages.</p>
+    <p>Erlang does not have a string data type. Instead, strings can be
+      represented by lists of Unicode characters. This implies for example that
+      the list <c>[97,98,99]</c> is equivalent to "abc". The Erlang shell is
+      "clever" and guesses what list you  mean and outputs it
       in what it thinks is the most appropriate form, for example:</p>
     <pre>
 30> <input>[97,98,99].</input>
@@ -420,16 +434,17 @@ list_length([First | Rest]) ->
 
   <section>
     <title>Maps</title>
-	<p>Maps are a set of key to value associations. These associations
-		are encapsulated with "#{" and "}". To create an association from
-		"key" to value 42, we write:</p>
+    <p>Maps are a set of key to value associations. These associations
+      are encapsulated with "#{" and "}". To create an association
+      from "key" to value 42:</p>
 <code type="none">
 > #{ "key" => 42 }.
 #{"key" => 42}</code>
-    <p>We will jump straight into the deep end with an example using some
-		interesting features.</p>
-	<p>The following example shows how we calculate alpha blending using
-		maps to reference color and alpha channels:</p>
+    <p>Let us jump straight into the deep end with an example using some
+      interesting features.</p>
+    <p>The following example shows how to calculate alpha blending
+      using maps to reference color and alpha channels. Enter the code
+      in a file named <c>color.erl</c>):</p>
     <code type="none">
 -module(color).
 
@@ -468,7 +483,7 @@ green(#{green := SV, alpha := SA}, #{green := DV, alpha := DA}) ->
     SV*SA + DV*DA*(1.0 - SA).
 blue(#{blue := SV, alpha := SA}, #{blue := DV, alpha := DA}) ->
     SV*SA + DV*DA*(1.0 - SA).</code>
-    <p>Compile (file <c>color.erl</c>) and test:</p>
+    <p>Compile and test:</p>
     <pre>
 > <input>c(color).</input>
 {ok,color}
@@ -484,50 +499,48 @@ blue(#{blue := SV, alpha := SA}, #{blue := DV, alpha := DA}) ->
     <p>This example warrants some explanation:</p>
     <code type="none">
 -define(is_channel(V), (is_float(V) andalso V &gt;= 0.0 andalso V =&lt; 1.0)).</code>
-    <p>
-		First we define a macro <c>is_channel</c> to help with our guard tests.
-		This is only here for convenience and to reduce syntax cluttering.
-
-		You can read more about <seealso marker="doc/reference_manual:macros">Macros</seealso>
-		in the Erlang Reference Manual.
-	</p>
+    <p>First a macro <c>is_channel</c> is defined to help with the
+      guard tests. This is only here for convenience and to reduce
+      syntax cluttering. For more information about macros, see
+      <seealso marker="doc/reference_manual:macros">
+      The Preprocessor</seealso>.
+    </p>
     <code type="none">
 new(R,G,B,A) when ?is_channel(R), ?is_channel(G),
                   ?is_channel(B), ?is_channel(A) ->
     #{red =&gt; R, green =&gt; G, blue =&gt; B, alpha =&gt; A}.</code>
-    <p>
-		The function <c>new/4</c> creates a new map term with and lets the keys
-		<c>red</c>, <c>green</c>, <c>blue</c> and <c>alpha</c> be associated
-		with an initial value. In this case we only allow for float
-		values between and including 0.0 and 1.0 as ensured by the <c>?is_channel/1</c> macro
-		for each argument. Only the <c>=></c> operator is allowed when creating a new map.
+    <p>The function <c>new/4</c> creates a new map term and lets the keys
+      <c>red</c>, <c>green</c>, <c>blue</c>, and <c>alpha</c> be
+      associated with an initial value. In this case, only float
+      values between and including 0.0 and 1.0 are allowed, as ensured
+      by the <c>?is_channel/1</c> macro for each argument. Only the
+      <c>=></c> operator is allowed when creating a new map.
+    </p>
+    <p>By calling <c>blend/2</c> on any color term created by
+      <c>new/4</c>, the resulting color can be calculated as
+      determined by the two map terms.
+    </p>
+    <p>The first thing <c>blend/2</c> does is to calculate the
+      resulting alpha channel:
     </p>
-	<p>
-		By calling <c>blend/2</c> on any color term created by <c>new/4</c> we can calculate
-		the resulting color as determined by the two maps terms.
-	</p>
-	<p>
-		The first thing <c>blend/2</c> does is to calculate the resulting alpha channel.
-	</p>
     <code type="none">
 alpha(#{alpha := SA}, #{alpha := DA}) ->
     SA + DA*(1.0 - SA).</code>
-    <p>
-		We fetch the value associated with key <c>alpha</c> for both arguments using
-		the <c>:=</c> operator. Any other keys
-		in the map are ignored, only the key <c>alpha</c> is required and checked for.
-	</p>
-	<p>This is also the case for functions <c>red/2</c>, <c>blue/2</c> and <c>green/2</c>.</p>
+    <p>The value associated with key <c>alpha</c> is fetched for both
+      arguments using the <c>:=</c> operator. The other keys in the
+      map are ignored, only the key <c>alpha</c> is required and
+      checked for.
+    </p>
+    <p>This is also the case for functions <c>red/2</c>,
+      <c>blue/2</c>, and <c>green/2</c>.</p>
     <code type="none">
 red(#{red := SV, alpha := SA}, #{red := DV, alpha := DA}) ->
     SV*SA + DV*DA*(1.0 - SA).</code>
-    <p>
-		The difference here is that we check for two keys in each map argument. The other keys
-		are ignored.
-	</p>
-    <p>
-		Finally we return the resulting color in <c>blend/3</c>.
-	</p>
+    <p>The difference here is that a check is made for two keys in
+      each map argument. The other keys are ignored.
+    </p>
+    <p>Finally, let us return the resulting color in <c>blend/3</c>:
+    </p>
     <code type="none">
 blend(Src,Dst,Alpha) when Alpha > 0.0 ->
     Dst#{
@@ -536,20 +549,20 @@ blend(Src,Dst,Alpha) when Alpha > 0.0 ->
         blue  := blue(Src,Dst) / Alpha,
         alpha := Alpha
     };</code>
-    <p>
-		We update the <c>Dst</c> map with new channel values. The syntax for updating an existing key with a new value is done with <c>:=</c> operator.
-	</p>
+    <p>The <c>Dst</c> map is updated with new channel values. The
+      syntax for updating an existing key with a new value is with the
+      <c>:=</c> operator.
+    </p>
   </section>
 
   <section>
     <title>Standard Modules and Manual Pages</title>
-    <p>Erlang has a lot of standard modules to help you do things. For
-      example, the module <c>io</c> contains a lot of functions to help
-      you do formatted input/output. To look up information about
-      standard modules, the command <c>erl -man</c> can be used at
-      the operating shell or command prompt (i.e. at the same place as
-      that where you started <c>erl</c>). Try the operating system
-      shell command:</p>
+    <p>Erlang has many standard modules to help you do things. For
+      example, the module <c>io</c> contains many functions that help
+      in doing formatted input/output. To look up information about
+      standard modules, the command <c>erl -man</c> can be used at the
+      operating shell or command prompt (the same place as you started
+      <c>erl</c>). Try the operating system shell command:</p>
     <pre>
 % <input>erl -man io</input>
 ERLANG MODULE DEFINITION                                    io(3)
@@ -561,21 +574,21 @@ DESCRIPTION
      This module provides an  interface  to  standard  Erlang  IO
      servers. The output functions all return ok if they are suc-
      ...</pre>
-    <p>If this doesn't work on your system, the documentation is
-      included as HTML in the Erlang/OTP release, or you can read
+    <p>If this does not work on your system, the documentation is
+      included as HTML in the Erlang/OTP release. You can also read
       the documentation as HTML or download it as PDF from either of
       the sites www.erlang.se (commercial Erlang) or www.erlang.org
-      (open source), for example for release R9B:</p>
+      (open source). For example, for Erlang/OTP release R9B:</p>
     <code type="none">
 http://www.erlang.org/doc/r9b/doc/index.html</code>
   </section>
 
   <section>
     <title>Writing Output to a Terminal</title>
-    <p>It's nice to be able to do formatted output in these example, so
+    <p>It is nice to be able to do formatted output in examples, so
       the next example shows a simple way to use the <c>io:format</c>
-      function. Of course, just like all other exported functions, you
-      can test the <c>io:format</c> function in the shell:</p>
+      function. Like all other exported functions, you can test the
+      <c>io:format</c> function in the shell:</p>
     <pre>
 31> <input>io:format("hello world~n", []).</input>
 hello world
@@ -589,28 +602,28 @@ ok
 34> <input>io:format("this outputs two Erlang terms: ~w ~w~n", [hello, world]).</input>
 this outputs two Erlang terms: hello world
 ok</pre>
-    <p>The function <c>format/2</c> (i.e. <c>format</c> with two
+    <p>The function <c>format/2</c> (that is, <c>format</c> with two
       arguments) takes two lists. The first one is nearly always a list
-      written between " ". This list is printed out as it stands,
+      written between " ". This list is printed out as it is,
       except that each ~w is replaced by a term taken in order from
       the second list. Each ~n is replaced by a new line.
       The <c>io:format/2</c> function itself returns the atom <c>ok</c>
       if everything goes as planned. Like other functions in Erlang, it
       crashes if an error occurs. This is not a fault in Erlang, it is
       a deliberate policy. Erlang has sophisticated mechanisms to
-      handle errors which we will show later. As an exercise, try to
-      make <c>io:format</c> crash, it shouldn't be difficult. But
+      handle errors which are shown later. As an exercise, try to
+      make <c>io:format</c> crash, it should not be difficult. But
       notice that although <c>io:format</c> crashes, the Erlang shell
       itself does not crash.</p>
   </section>
 
   <section>
     <title>A Larger Example</title>
-    <p>Now for a larger example to consolidate what we have learnt so
-      far. Assume we have a list of temperature readings from a number
-      of cities in the world. Some of them are in Celsius (Centigrade)
-      and some in Fahrenheit (as in the previous list). First let's
-      convert them all to Celsius, then let's print out the data neatly.</p>
+    <p>Now for a larger example to consolidate what you have learnt so
+      far. Assume that you have a list of temperature readings from a number
+      of cities in the world. Some of them are in Celsius
+      and some in Fahrenheit (as in the previous list). First let us
+      convert them all to Celsius, then let us print the data neatly.</p>
     <code type="none">
 %% This module is in file tut5.erl
 
@@ -642,50 +655,50 @@ stockholm       -4 c
 paris           -2.2222222222222223 c
 london          2.2222222222222223 c
 ok</pre>
-    <p>Before we look at how this program works, notice that we have
-      added a few comments to the code. A comment starts with a %
-      character and goes on to the end of the line. Note as well that
+    <p>Before looking at how this program works, notice that
+      a few comments are added to the code. A comment starts with a
+      %-character and goes on to the end of the line. Notice also that
       the <c>-export([format_temps/1]).</c> line only includes
-      the function <c>format_temps/1</c>, the other functions are
-      <em>local</em> functions, i.e. they are not visible from outside
+      the function <c>format_temps/1</c>. The other functions are
+      <em>local</em> functions, that is, they are not visible from outside
       the module <c>tut5</c>.</p>
-    <p>Note as well that when testing the program from the shell, I had
-      to spread the input over two lines as the line was too long.</p>
-    <p>When we call <c>format_temps</c> the first time, <c>City</c>
+    <p>Notice also that when testing the program from the shell,
+      the input is spread over two lines as the line was too long.</p>
+    <p>When <c>format_temps</c> is called the first time, <c>City</c>
       gets the value <c>{moscow,{c,-10}}</c> and <c>Rest</c> is
-      the rest of the list. So we call the function
-      <c>print_temp(convert_to_celsius({moscow,{c,-10}}))</c>.</p>
-    <p>Here we see a function call as
+      the rest of the list. So the function
+      <c>print_temp(convert_to_celsius({moscow,{c,-10}}))</c> is called.</p>
+    <p>Here is a function call as
       <c>convert_to_celsius({moscow,{c,-10}})</c> as the argument to
-      the function <c>print_temp</c>. When we <em>nest</em> function
-      calls like this we execute (evaluate) them from the inside out.
-      I.e. we first evaluate <c>convert_to_celsius({moscow,{c,-10}})</c>
+      the function <c>print_temp</c>. When function calls are <em>nested</em>
+      like this, they execute (evaluate) from the inside out.
+      That is, first <c>convert_to_celsius({moscow,{c,-10}})</c> is evaluated,
       which gives the value <c>{moscow,{c,-10}}</c> as the temperature
-      is already in Celsius and then we evaluate
-      <c>print_temp({moscow,{c,-10}})</c>. The function
-      <c>convert_to_celsius</c> works in a similar way to
+      is already in Celsius. Then <c>print_temp({moscow,{c,-10}})</c>
+      is evaluated.
+      The function <c>convert_to_celsius</c> works in a similar way to
       the <c>convert_length</c> function in the previous example.</p>
     <p><c>print_temp</c> simply calls <c>io:format</c> in a similar way
-      to what has been described above. Note that ~-15w says to print
+      to what has been described above. Notice that ~-15w says to print
       the "term" with a field length (width) of 15 and left justify it.
-      (<seealso marker="stdlib:io#fwrite/1">io(3)</seealso>).</p>
-    <p>Now we call <c>format_temps(Rest)</c> with the rest of the list
+      (see the <seealso marker="stdlib:io#fwrite/1">io(3)</seealso>) manual page in STDLIB.</p>
+    <p>Now <c>format_temps(Rest)</c> is called with the rest of the list
       as an argument. This way of doing things is similar to the loop
-      constructs in other languages. (Yes, this is recursion, but don't
+      constructs in other languages. (Yes, this is recursion, but do not
       let that worry you.) So the same <c>format_temps</c> function is
       called again, this time <c>City</c> gets the value
-      <c>{cape_town,{f,70}}</c> and we repeat the same procedure as
-      before. We go on doing this until the list becomes empty, i.e. [],
+      <c>{cape_town,{f,70}}</c> and the same procedure is repeated as
+      before. This is done until the list becomes empty, that is [],
       which causes the first clause <c>format_temps([])</c> to match.
       This simply returns (results in) the atom <c>ok</c>, so
       the program ends.</p>
   </section>
 
   <section>
-    <title>Matching, Guards and Scope of Variables</title>
-    <p>It could be useful to find the maximum and minimum temperature
+    <title>Matching, Guards, and Scope of Variables</title>
+    <p>It can be useful to find the maximum and minimum temperature
       in lists like this. Before extending the program to do this,
-      let's look at functions for finding the maximum value of
+      let us look at functions for finding the maximum value of
       the elements in a list:</p>
     <code type="none">
 -module(tut6).
@@ -705,53 +718,57 @@ list_max([Head|Rest], Result_so_far)  ->
 {ok,tut6}
 38> <input>tut6:list_max([1,2,3,4,5,7,4,3,2,1]).</input>
 7</pre>
-    <p>First note that we have two functions here with the same name
-      <c>list_max</c>. However each of these takes a different number
+    <p>First notice that two functions have the same name,
+      <c>list_max</c>. However, each of these takes a different number
       of arguments (parameters). In Erlang these are regarded as
-      completely different functions. Where we need to distinguish
-      between these functions we write <c>name/arity</c>, where
-      <c>name</c> is the name of the function and <c>arity</c> is
+      completely different functions. Where you need to distinguish
+      between these functions, you write Name/Arity, where
+      Name is the function name and Arity is
       the number of arguments, in this case <c>list_max/1</c> and
       <c>list_max/2</c>.</p>
-    <p>This is an example where we walk through a list "carrying" a
-      value with us, in this case <c>Result_so_far</c>.
+    <p>In this example you walk through a list "carrying" a
+      value, in this case <c>Result_so_far</c>.
       <c>list_max/1</c> simply assumes that the max value of the list
       is the head of the list and calls <c>list_max/2</c> with the rest
-      of the list and the value of the head of the list, in the above
-      this would be <c>list_max([2,3,4,5,7,4,3,2,1],1)</c>. If we tried
+      of the list and the value of the head of the list. In the above
+      this would be <c>list_max([2,3,4,5,7,4,3,2,1],1)</c>. If you tried
       to use <c>list_max/1</c> with an empty list or tried to use it
-      with something which isn't a list at all, we would cause an error.
-      Note that the Erlang philosophy is not to handle errors of this
+      with something that is not a list at all, you would cause an error.
+      Notice that the Erlang philosophy is not to handle errors of this
       type in the function they occur, but to do so elsewhere. More
       about this later.</p>
-    <p>In <c>list_max/2</c> we walk down the list and use <c>Head</c>
+    <p>In <c>list_max/2</c>, you walk down the list and use <c>Head</c>
       instead of <c>Result_so_far</c> when <c>Head</c> &gt;
-      <c>Result_so_far</c>. <c>when</c> is a special word we use before
-      the -&gt; in the function to say that we should only use this part
-      of the function if the test which follows is true. We call tests
-      of this type a <em>guard</em>. If the guard isn't true (we say
-      the guard fails), we try the next part of the function. In this
-      case if <c>Head</c> isn't greater than <c>Result_so_far</c> then
-      it must be smaller or equal to is, so we don't need a guard on
-      the next part of the function.</p>
-    <p>Some useful operators in guards are, &lt; less than, &gt;
-      greater than, == equal, &gt;= greater or equal, =&lt; less or
-      equal, /= not equal. (See the chapter
-      <seealso marker="doc/reference_manual:expressions">"Guard Sequences"</seealso> in the Erlang Reference Manual.)</p>
-    <p>To change the above program to one which works out the minimum
-      value of the element in a list, all we would need to do is to
+      <c>Result_so_far</c>. <c>when</c> is a special word used before
+      the -&gt; in the function to say that you only use this part
+      of the function if the test that follows is true. A test
+      of this type is called <em>guard</em>. If the guard is false (that is,
+      the guard fails), the next part of the function is tried. In this
+      case, if <c>Head</c> is not greater than <c>Result_so_far</c>, then
+      it must be smaller or equal to it. This means that a guard on
+      the next part of the function is not needed.</p>
+    <p>Some useful operators in guards are:
+    </p><list type="bulleted"><item>&lt; less than</item>
+    <item>&gt; greater than</item>
+    <item>== equal</item>
+    <item>&gt;= greater or equal</item>
+    <item>=&lt; less or equal</item>
+    <item>/= not equal</item></list>
+    <p>(see <seealso marker="doc/reference_manual:expressions">Guard Sequences</seealso>).</p>
+    <p>To change the above program to one that works out the minimum
+      value of the element in a list, you only need to
       write &lt; instead of &gt;. (But it would be wise to change
-      the name of the function to <c>list_min</c> :-).)</p>
-    <p>Remember that I mentioned earlier that a variable could only be
-      given a value once in its scope? In the above we see, for example,
-      that <c>Result_so_far</c> has been given several values. This is
-      OK since every time we call <c>list_max/2</c> we create a new
-      scope and one can regard the <c>Result_so_far</c> as a completely
+      the name of the function to <c>list_min</c>.)</p>
+    <p>Earlier it was mentioned that a variable can only be
+      given a value once in its scope. In the above you see
+      that <c>Result_so_far</c> is given several values. This is
+      OK since every time you call <c>list_max/2</c> you create a new
+      scope and one can regard <c>Result_so_far</c> as a
       different variable in each scope.</p>
     <p>Another way of creating and giving a variable a value is by using
-      the match operator = . So if I write <c>M = 5</c>, a variable
-      called <c>M</c> will be created and given the value 5. If, in
-      the same scope I then write <c>M = 6</c>, I'll get an error. Try
+      the match operator = . So if you write <c>M = 5</c>, a variable
+      called <c>M</c> is created with the value 5. If, in
+      the same scope, you then write <c>M = 6</c>, an error is returned. Try
       this out in the shell:</p>
     <pre>
 39> <input>M = 5.</input>
@@ -771,21 +788,21 @@ list_max([Head|Rest], Result_so_far)  ->
 paris
 45> <input>Y.</input>
 {f,28}</pre>
-    <p>Here we see that <c>X</c> gets the value <c>paris</c> and
+    <p>Here <c>X</c> gets the value <c>paris</c> and
       <c>Y</c><c>{f,28}</c>.</p>
-    <p>Of course if we try to do the same again with another city, we
-      get an error:</p>
+    <p>If you try to do the same again with another city,
+      an error is returned:</p>
     <pre>
 46> <input>{X, Y} = {london, {f, 36}}.</input>
 ** exception error: no match of right hand side value {london,{f,36}}</pre>
     <p>Variables can also be used to improve the readability of
-      programs, for example, in the <c>list_max/2</c> function above,
-      we could write:</p>
+      programs. For example, in function <c>list_max/2</c> above,
+      you can write:</p>
     <code type="none">
 list_max([Head|Rest], Result_so_far) when Head > Result_so_far ->
     New_result_far = Head,
     list_max(Rest, New_result_far);</code>
-    <p>which is possibly a little clearer.</p>
+    <p>This is possibly a little clearer.</p>
   </section>
 
   <section>
@@ -824,9 +841,9 @@ reverse([], Reversed_List) ->
 {ok,tut8}
 53> <input>tut8:reverse([1,2,3]).</input>
 [3,2,1]</pre>
-    <p>Consider how <c>Reversed_List</c> is built. It starts as [], we
-      then successively take off the heads of the list to be reversed
-      and add them to the the <c>Reversed_List</c>, as shown in
+    <p>Consider how <c>Reversed_List</c> is built. It starts as [],
+      then successively the heads are taken off of the list to be reversed
+      and added to the the <c>Reversed_List</c>, as shown in
       the following:</p>
     <code type="none">
 reverse([1|2,3], []) =>
@@ -840,14 +857,15 @@ reverse([3|[]], [2,1]) =>
 
 reverse([], [3,2,1]) =>
     [3,2,1]</code>
-    <p>The module <c>lists</c> contains a lot of functions for
-      manipulating lists, for example for reversing them, so before you
-      write a list manipulating function it is a good idea to check
-      that one isn't already written for you. (see
-      <seealso marker="stdlib:lists">lists(3)</seealso>).</p>
-    <p>Now let's get back to the cities and temperatures, but take a more
-      structured approach this time. First let's convert the whole list
-      to Celsius as follows and test the function:</p>
+    <p>The module <c>lists</c> contains many functions for
+      manipulating lists, for example, for reversing them. So before
+      writing a list-manipulating function it is a good idea to check
+      if one not already is written for you
+      (see the <seealso marker="stdlib:lists">lists(3)</seealso>
+      manual page in STDLIB).</p>
+    <p>Now let us get back to the cities and temperatures, but take a more
+      structured approach this time. First let us convert the whole list
+      to Celsius as follows:</p>
     <code type="none">
 -module(tut7).
 -export([format_temps/1]).
@@ -864,6 +882,7 @@ convert_list_to_c([City | Rest]) ->
 
 convert_list_to_c([]) ->
     [].</code>
+    <p>Test the function:</p>
     <pre>
 54> <input>c(tut7).</input>
 {ok, tut7}.
@@ -874,26 +893,26 @@ convert_list_to_c([]) ->
  {stockholm,{c,-4}},
  {paris,{c,-2.2222222222222223}},
  {london,{c,2.2222222222222223}}]</pre>
-    <p>Looking at this bit by bit:</p>
+    <p>Explanation:</p>
     <code type="none">
 format_temps(List_of_cities) ->
     convert_list_to_c(List_of_cities).</code>
-    <p>Here we see that <c>format_temps/1</c> calls
+    <p>Here <c>format_temps/1</c> calls
       <c>convert_list_to_c/1</c>. <c>convert_list_to_c/1</c> takes off
       the head of the <c>List_of_cities</c>, converts it to Celsius if
       needed. The | operator is used to add the (maybe) converted
       to the converted rest of the list:</p>
     <code type="none">
 [Converted_City | convert_list_to_c(Rest)];</code>
-    <p>or</p>
+    <p>or:</p>
     <code type="none">
 [City | convert_list_to_c(Rest)];</code>
-    <p>We go on doing this until we get to the end of the list (i.e.
-      the list is empty):</p>
+    <p>This is done until the end of the list is reached, that is,
+      the list is empty:</p>
     <code type="none">
 convert_list_to_c([]) ->
     [].</code>
-    <p>Now we have converted the list, we add a function to print it:</p>
+    <p>Now when the list is converted, a function to print it is added:</p>
     <code type="none">
 -module(tut7).
 -export([format_temps/1]).
@@ -928,12 +947,12 @@ stockholm       -4 c
 paris           -2.2222222222222223 c
 london          2.2222222222222223 c
 ok</pre>
-    <p>We now have to add a function to find the cities with
-      the maximum and minimum temperatures. The program below isn't
-      the most efficient way of doing this as we walk through the list
+    <p>Now a function has to be added to find the cities with
+      the maximum and minimum temperatures. The following program is not
+      the most efficient way of doing this as you walk through the list
       of cities four times. But it is better to first strive for
       clarity and correctness and to make programs efficient only if
-      really needed.</p>
+      needed.</p>
     <code type="none"><![CDATA[
 -module(tut7).
 -export([format_temps/1]).
@@ -1003,8 +1022,8 @@ ok</pre>
   <section>
     <title>If and Case</title>
     <p>The function <c>find_max_and_min</c> works out the maximum and
-      minimum temperature. We have introduced a new construct here
-      <c>if</c>. If works as follows:</p>
+      minimum temperature. A new construct, <c>if</c>, is introduced here.
+      If works as follows:</p>
     <code type="none">
 if
     Condition 1 ->
@@ -1016,14 +1035,15 @@ if
     Condition 4 ->
         Action 4
 end</code>
-    <p>Note there is no ";" before <c>end</c>! Conditions are the same
-      as guards, tests which succeed or fail. Erlang starts at the top
-      until it finds a condition which succeeds and then it evaluates
+    <p>Notice that there is no ";" before <c>end</c>. Conditions do
+      the same as guards, that is, tests that succeed or fail. Erlang
+      starts at the top
+      and tests until it finds a condition that succeeds. Then it evaluates
       (performs) the action following the condition and ignores all
-      other conditions and action before the <c>end</c>. If no
-      condition matches, there will be a run-time failure. A condition
-      which always is succeeds is the atom, <c>true</c> and this is
-      often used last in an <c>if</c> meaning do the action following
+      other conditions and actions before the <c>end</c>. If no
+      condition matches, a run-time failure occurs. A condition
+      that always succeeds is the atom <c>true</c>. This is
+      often used last in an <c>if</c>, meaning, do the action following
       the <c>true</c> if all other conditions have failed.</p>
     <p>The following is a short program to show the workings of
       <c>if</c>.</p>
@@ -1039,10 +1059,10 @@ test_if(A, B) ->
         B == 6 ->
             io:format("B == 6~n", []),
             b_equals_6;
-        A == 2, B == 3 ->                      %i.e. A equals 2 and B equals 3
+        A == 2, B == 3 ->                      %That is A equals 2 and B equals 3
             io:format("A == 2, B == 3~n", []),
             a_equals_2_b_equals_3;
-        A == 1 ; B == 7 ->                     %i.e. A equals 1 or B equals 7
+        A == 1 ; B == 7 ->                     %That is A equals 1 or B equals 7
             io:format("A == 1 ; B == 7~n", []),
             a_equals_1_or_b_equals_7
     end.</code>
@@ -1068,19 +1088,19 @@ a_equals_1_or_b_equals_7
 66> <input>tut9:test_if(33, 33).</input>
 ** exception error: no true branch found when evaluating an if expression
      in function  tut9:test_if/2 (tut9.erl, line 5)</pre>
-    <p>Notice that <c>tut9:test_if(33,33)</c> did not cause any
-      condition to succeed so we got the run time error
-      <c>if_clause</c>, here nicely formatted by the shell. See the chapter
-      <seealso marker="doc/reference_manual:expressions">"Guard Sequences"</seealso> in the Erlang Reference Manual for details
-      of the many guard tests available. <c>case</c> is another
-      construct in Erlang. Recall that we wrote the
-      <c>convert_length</c> function as:</p>
+    <p>Notice that <c>tut9:test_if(33,33)</c> does not cause any
+      condition to succeed. This leads to the run time error
+      <c>if_clause</c>, here nicely formatted by the shell. See
+      <seealso marker="doc/reference_manual:expressions">Guard Sequences</seealso>
+      for details of the many guard tests available.</p>
+    <p><c>case</c> is another construct in Erlang. Recall that the
+      <c>convert_length</c> function was written as:</p>
     <code type="none">
 convert_length({centimeter, X}) ->
     {inch, X / 2.54};
 convert_length({inch, Y}) ->
     {centimeter, Y * 2.54}.</code>
-    <p>We could also write the same program as:</p>
+    <p>The same program can also be written as:</p>
     <code type="none">
 -module(tut10).
 -export([convert_length/1]).
@@ -1099,12 +1119,13 @@ convert_length(Length) ->
 {centimeter,15.24}
 69> <input>tut10:convert_length({centimeter, 2.5}).</input>
 {inch,0.984251968503937}</pre>
-    <p>Notice that both <c>case</c> and <c>if</c> have <em>return values</em>, i.e. in the above example <c>case</c> returned
+    <p>Both <c>case</c> and <c>if</c> have <em>return values</em>, that is,
+      in the above example <c>case</c> returned
       either <c>{inch,X/2.54}</c> or <c>{centimeter,Y*2.54}</c>.
       The behaviour of <c>case</c> can also be modified by using guards.
-      An example should hopefully clarify this. The following example
-      tells us the length of a month, given the year. We need to know
-      the year of course, since February has 29 days in a leap year.</p>
+      The following example clarifies this. It
+      tells us the length of a month, given the year.
+      The year must be known, since February has 29 days in a leap year.</p>
     <code type="none">
 -module(tut11).
 -export([month_length/2]).
@@ -1150,57 +1171,58 @@ month_length(Year, Month) ->
   </section>
 
   <section>
-    <title>Built In Functions (BIFs)</title>
-    <p>Built in functions (BIFs) are functions which for some reason are
-      built in to the Erlang virtual machine. BIFs often implement 
-      functionality that is impossible to implement in Erlang or is too
-      inefficient to implement in Erlang. Some BIFs can be called 
-      by use of the function name only, but they by default belong
-      to the erlang module. So for example, the call to the BIF <c>trunc</c>
+    <title>Built-In Functions (BIFs)</title>
+    <p>BIFs are functions that for some reason are
+      built-in to the Erlang virtual machine. BIFs often implement
+      functionality that is impossible or is too
+      inefficient to implement in Erlang. Some BIFs can be called
+      using the function name only but they are by default belonging
+      to the <c>erlang</c> module. For example, the call to the
+      BIF <c>trunc</c>
       below is equivalent to a call to <c>erlang:trunc</c>.</p>
-    <p>As you can see, we first find out if a year is leap or not. If a
-      year is divisible by 400, it is a leap year. To find this out we
-      first divide the year by 400 and use the built in function
-      <c>trunc</c> (more later) to cut off any decimals. We then
-      multiply by 400 again and see if we get back the same value. For
-      example, year 2004:</p>
+    <p>As shown, first it is checked if a year is leap. If a
+      year is divisible by 400, it is a leap year. To determine this,
+      first divide the year by 400 and use the BIF
+      <c>trunc</c> (more about this later) to cut off any decimals. Then
+      multiply by 400 again and see if the same value is returned again.
+      For example, year 2004:</p>
     <code type="none">
 2004 / 400 = 5.01
 trunc(5.01) = 5
 5 * 400 = 2000</code>
-    <p>and we can see that we got back 2000 which is not the same as
-      2004, so 2004 isn't divisible by 400. Year 2000:</p>
+    <p>2000 is not the same as 2004, so 2004 is not divisible by 400.
+    Year 2000:</p>
     <code type="none">
 2000 / 400 = 5.0
 trunc(5.0) = 5
 5 * 400 = 2000</code>
-    <p>so we have a leap year. The next two tests, which check if the year is
-      divisible by 100 or 4, are done in the same way. The first
-      <c>if</c> returns <c>leap</c> or <c>not_leap</c> which ends up
-      in the variable <c>Leap</c>. We use this variable in the guard
-      for <c>feb</c> in the following <c>case</c> which tells us how
+    <p>That is, a leap year. The next two <c>trunc</c>-tests evaluate
+      if the year is divisible by 100 or 4 in the same way. The first
+      <c>if</c> returns <c>leap</c> or <c>not_leap</c>, which lands up
+      in the variable <c>Leap</c>. This variable is used in the guard
+      for <c>feb</c> in the following <c>case</c> that tells us how
       long the month is.</p>
-    <p>This example showed the use of <c>trunc</c>. An easier way would
-      be to use the Erlang operator <c>rem</c>, which gives the remainder
-      after division. For example:</p>
+    <p>This example showed the use of <c>trunc</c>. It is easier
+      to use the Erlang operator <c>rem</c> that gives the remainder
+      after division, for example:</p>
     <pre>
 74> <input>2004 rem 400.</input>
 4</pre>
-    <p>so instead of writing:</p>
+    <p>So instead of writing:</p>
     <code type="none">
 trunc(Year / 400) * 400 == Year ->
     leap;</code>
-    <p>we could write:</p>
+    <p>it can be written:</p>
     <code type="none">
 Year rem 400 == 0 ->
     leap;</code>
-    <p>There are many other built in functions (BIF) such as
-      <c>trunc</c>. Only a few built in functions can be used in guards,
+    <p>There are many other BIFs such as
+      <c>trunc</c>. Only a few BIFs can be used in guards,
       and you cannot use functions you have defined yourself in guards.
-      (see the chapter
-      <seealso marker="doc/reference_manual:expressions">"Guard Sequences"</seealso> in the Erlang Reference Manual) (Aside for
-      advanced readers: This is to ensure that guards don't have side
-      effects.) Let's play with a few of these functions in the shell:</p>
+      (see
+      <seealso marker="doc/reference_manual:expressions">Guard Sequences</seealso>)
+      (For advanced readers: This is to ensure that guards do not have side
+      effects.) Let us play with a few of these functions in the shell:</p>
     <pre>
 75> <input>trunc(5.6).</input>
 5
@@ -1218,7 +1240,7 @@ false
 true
 82> <input>is_tuple([paris, {c, 30}]).</input>
 false</pre>
-    <p>All the above can be used in guards. Now for some which can't be
+    <p>All of these can be used in guards. Now for some BIFs that cannot be
       used in guards:</p>
     <pre>
 83> <input>atom_to_list(hello).</input>
@@ -1227,22 +1249,22 @@ false</pre>
 goodbye
 85> <input>integer_to_list(22).</input>
 "22"</pre>
-    <p>The 3 BIFs above do conversions which would be difficult (or
+    <p>These three BIFs do conversions that would be difficult (or
       impossible) to do in Erlang.</p>
   </section>
 
   <section>
-    <title>Higher Order Functions (Funs)</title>
+    <title>Higher-Order Functions (Funs)</title>
     <p>Erlang, like most modern functional programming languages, has
-      higher order functions. We start with an example using the shell:</p>
+      higher-order functions. Here is an example using the shell:</p>
     <pre>
 86> <input>Xf = fun(X) -> X * 2 end.</input>
 #Fun&lt;erl_eval.5.123085357&gt;
 87> <input>Xf(5).</input>
 10</pre>
-    <p>What we have done here is to define a function which doubles
-      the value of number and assign this function to a variable. Thus
-      <c>Xf(5)</c> returned the value 10. Two useful functions when
+    <p>Here is defined a function that doubles
+      the value of a number and assigned this function to a variable. Thus
+      <c>Xf(5)</c> returns value 10. Two useful functions when
       working with lists are <c>foreach</c> and <c>map</c>, which are
       defined as follows:</p>
     <code type="none">
@@ -1258,17 +1280,16 @@ map(Fun, []) ->
     [].</code>
     <p>These two functions are provided in the standard module
       <c>lists</c>. <c>foreach</c> takes a list and applies a fun to
-      every element in the list, <c>map</c> creates a new list by
+      every element in the list. <c>map</c> creates a new list by
       applying a fun to every element in a list. Going back to
-      the shell, we start by using <c>map</c> and a fun to add 3 to
+      the shell, <c>map</c> is used and a fun to add 3 to
       every element of a list:</p>
     <pre>
 88> <input>Add_3 = fun(X) -> X + 3 end.</input>
 #Fun&lt;erl_eval.5.123085357&gt;
 89> <input>lists:map(Add_3, [1,2,3]).</input>
 [4,5,6]</pre>
-    <p>Now let's print out the temperatures in a list of cities (yet
-      again):</p>
+    <p>Let us (again) print the temperatures in a list of cities:</p>
     <pre>
 90> <input>Print_City = fun({City, {X, Temp}}) -> io:format("~-15w ~w ~w~n",</input>
 <input>[City, X, Temp]) end.</input>
@@ -1281,7 +1302,7 @@ stockholm       c -4
 paris           f 28
 london          f 36
 ok</pre>
-    <p>We will now define a fun which can be used to go through a list
+    <p>Let us now define a fun that can be used to go through a list
       of cities and temperatures and transform them all to Celsius.</p>
     <code type="none">
 -module(tut13).
@@ -1303,21 +1324,21 @@ convert_list_to_c(List) ->
  {stockholm,{c,-4}},
  {paris,{c,-2}},
  {london,{c,2}}]</pre>
-    <p>The <c>convert_to_c</c> function is the same as before, but we
-      use it as a fun:</p>
+    <p>The <c>convert_to_c</c> function is the same as before, but here
+      it is used as a fun:</p>
     <code type="none">
 lists:map(fun convert_to_c/1, List)</code>
-    <p>When we use a function defined elsewhere as a fun we can refer
-      to it as <c>Function/Arity</c> (remember that <c>Arity</c> =
-      number of arguments). So in the <c>map</c> call we write
-      <c>lists:map(fun convert_to_c/1, List)</c>. As you can see
+    <p>When a function defined elsewhere is used as a fun, it can be referred
+      to as <c>Function/Arity</c> (remember that <c>Arity</c> =
+      number of arguments). So in the <c>map</c>-call
+      <c>lists:map(fun convert_to_c/1, List)</c> is written. As shown,
       <c>convert_list_to_c</c> becomes much shorter and easier to
       understand.</p>
     <p>The standard module <c>lists</c> also contains a function
       <c>sort(Fun, List)</c> where <c>Fun</c> is a fun with two
-      arguments. This fun should return <c>true</c> if the the first
+      arguments. This fun returns <c>true</c> if the first
       argument is less than the second argument, or else <c>false</c>.
-      We add sorting to the <c>convert_list_to_c</c>:</p>
+      Sorting is added to the <c>convert_list_to_c</c>:</p>
     <code type="none"><![CDATA[
 -module(tut13).
 
@@ -1342,13 +1363,13 @@ convert_list_to_c(List) ->
  {paris,{c,-2}},
  {london,{c,2}},
  {cape_town,{c,21}}]</pre>
-    <p>In <c>sort</c> we use the fun:</p>
+    <p>In <c>sort</c> the fun is used:</p>
     <code type="none"><![CDATA[
 fun({_, {c, Temp1}}, {_, {c, Temp2}}) -> Temp1 < Temp2 end,]]></code>
-    <p>Here we introduce the concept of an <em>anonymous variable</em>
-      "_". This is simply shorthand for a variable which is going to
-      get a value, but we will ignore the value. This can be used
-      anywhere suitable, not just in fun's. <c><![CDATA[Temp1 < Temp2]]></c>
+    <p>Here the concept of an <em>anonymous variable</em>
+      "_" is introduced. This is simply shorthand for a variable that
+      gets a value, but the value is ignored. This can be used
+      anywhere suitable, not just in funs. <c><![CDATA[Temp1 < Temp2]]></c>
       returns <c>true</c> if <c>Temp1</c> is less than <c>Temp2</c>.</p>
   </section>
 </chapter>
diff --git a/system/doc/installation_guide/install-binary.xml b/system/doc/installation_guide/install-binary.xml
index af7dab6e44..ead4b19323 100644
--- a/system/doc/installation_guide/install-binary.xml
+++ b/system/doc/installation_guide/install-binary.xml
@@ -33,25 +33,23 @@
   </header>
   <section>
     <title>Windows</title>
+    <p>The system is delivered as a Windows Installer executable.
+    Get it from http://www.erlang.org/download.html</p>
 
     <section>
-      <title>Introduction</title>
-      <p>The system is delivered as a Windows Installer executable.
-        Get it from our <url href="http://www.erlang.org/download.html">download page</url>.</p>
-    </section>
-
-    <section>
-      <title>Installation</title>
-      <p>The installation procedure is is automated. Double-click the
+      <title>Installing</title>
+      <p>The installation procedure is automated. Double-click the
         <c>.exe</c> file icon and follow the instructions.</p>
     </section>
+
     <section>
-    <title>Verification</title>
+    <title>Verifying</title>
     <list type="bulleted">
       <item>
         <p>Start Erlang/OTP by double-clicking on the Erlang shortcut icon on the
           desktop.</p>
-        <p>Expect a command line window to pop up with an output looking something like this:</p>
+        <p>Expect a command-line window to pop up with an output looking
+	something like this:</p>
         <pre>
   Erlang/OTP 17 [erts-6.0] [64-bit] [smp:2:2]
 
@@ -59,12 +57,12 @@
   1></pre>
       </item>
       <item>
-        <p>Exit by entering the command <c>halt()</c>,</p>
+        <p>Exit by entering the command <c>halt()</c>.</p>
         <pre>
   2> <input>halt().</input></pre>
-        <p>which will close the Erlang/OTP shell. </p>
+        <p>This closes the Erlang/OTP shell.</p>
       </item>
     </list>
-  </section>
+    </section>
   </section>
 </chapter>
diff --git a/system/doc/installation_guide/part.xml b/system/doc/installation_guide/part.xml
index ff17cecd59..5b1b3833cd 100644
--- a/system/doc/installation_guide/part.xml
+++ b/system/doc/installation_guide/part.xml
@@ -29,7 +29,8 @@
     <file>part.xml</file>
   </header>
   <description>
-    <p>How to install Erlang/OTP on UNIX or Windows.</p>
+    <marker id="installation guide"></marker>
+    <p>This section describes how to install Erlang/OTP on UNIX and Windows.</p>
   </description>
   <xi:include href="install-binary.xml"/>
   <xi:include href="INSTALL.xml"/>
diff --git a/system/doc/oam/oam_intro.xml b/system/doc/oam/oam_intro.xml
index f4f990393e..de4867ca16 100644
--- a/system/doc/oam/oam_intro.xml
+++ b/system/doc/oam/oam_intro.xml
@@ -28,241 +28,224 @@
     <rev>A</rev>
     <file>oam_intro.xml</file>
   </header>
-  <p>The operation and maintenance support in OTP consists of a
-    generic model for management subsystems in OTP, and some
-    components to be used in these subsystems.  This document
-    describes the model.
-    </p>
-  <p>The main idea in the model is that it is management protocol
-    independent.  Thus, it is not tied to any specific management
-    protocol.  An API is defined which can be used to write
-    adaptations for specific management protocols.
-    </p>
-  <p>Each OAM component in OTP is implemented as one sub application,
-    which can be included in a management application for the system.
-    Note that such a complete management application is not in the
-    scope of this generic functionality.  Examples illustrating how such an
-    application can be built are included however.
-    </p>
+  <marker id="oam principles"></marker>
+  <p>The Operation and Maintenance (OAM) support in OTP consists of a
+  generic model for management subsystems in OTP, and some components
+  to be used in these subsystems. This section describes the model.</p>
+
+  <p>The main idea in the model is that it is not tied to any specific
+  management protocol. An Application Programming Interface (API) is
+  defined, which can be used to write adaptations for specific
+  management protocols.</p>
+
+  <p>Each OAM component in OTP is implemented as one sub-application, which
+  can be included in a management application for the system. Notice that
+  such a complete management application is not in the scope of this
+  generic functionality. However, this section includes examples
+  illustrating how such an application can be built.</p>
 
   <section>
     <title>Terminology</title>
-    <p>The protocol independent architectural model on the network
-      level is the well-known <term id="Manager-Agent       model"><termdef>Client-Server model for management operations</termdef></term>.  This model is based on the client-server
-      principle, where the manager (client) sends <term id="requests"><termdef>A request is sent from a manager to an agent when it accesses management information.</termdef></term>to the
-      agent (server), the agent sends <term id="replies"><termdef>A reply is sent from the agent as a response to a request from a manager.</termdef></term>back to the manager.  There are two main
-      differences to the normal client-server model.  First, there are
-      usually a few managers that communicate with many agents; and
-      second, the agent may spontaneously send <term id="notifications"><termdef>A notification is sent spontaneously from an agent to a manager, e.g. an alarm.</termdef></term>to the
-      manager.  The picture below illustrates the idea.</p>
+    <p>The protocol-independent architectural model on the network level
+    is the well-known client-server model for management operations. This
+    model is based on the client-server principle, where the manager
+    (client) sends a request from a manager to an agent (server) when it
+    accesses management information. The agent sends a reply back to the
+    manager. There are two main differences to the normal
+    client-server model:</p>
+    <list type="bulleted">
+      <item><p>Usually a few managers communicate with many agents.</p></item>
+      <item><p>The agent can spontaneously send a notification, for example,
+      an alarm, to the manager.</p></item>
+    </list>
+    <p>The following picture illustrates the idea:</p>
+
     <image file="../oam/terminology.gif">
       <icaption>Terminology</icaption>
     </image>
-    <p>The manager is often referred to as the <term id="NMS"></term>, to
-      emphasize that it usually is realized as a program that presents
-      data to an operator.
-      </p>
-    <p>The agent is an entity that executes within a <term id="NE"></term>.
-      In OTP, the network element may be a distributed system, meaning
-      that the distributed system is managed as one entity.  Of
-      course, the agent may be configured to be able to run on one of
-      several nodes, making it a distributed OTP application.
-      </p>
-    <p>The management information is defined in an <term id="MIB"></term>.
-      It is a formal definition of which information the agent makes
-      available to the manager.  The manager accesses the MIB through
-      a management protocol, such as SNMP, CMIP, HTTP or CORBA.  Each
-      of these protocols have their own MIB definition language.  In
-      SNMP, it is a subset of ASN.1, in CMIP it is GDMO, in HTTP it is
-      implicit, and using CORBA, it is IDL.  Usually, the entities
-      defined in the MIB are called <term id="MO"></term>, although these
-      objects do not have to be objects in the OO way,for example, a simple
-      scalar variable defined in an MIB is called a Managed Object.
-      The Managed Objects are logical objects, not necessarily with a
-      one-to-one mapping to the resources.
-      </p>
+
+    <p>The manager is often referred to as the <em>Network Management
+    System (NMS)</em>, to emphasize that it usually is realized as a
+    program that presents data to an operator.</p>
+
+    <p>The agent is an entity that executes within a <em>Network
+    Element (NE)</em>. In OTP, the NE can be a distributed system,
+    meaning that the distributed system is managed as one entity.
+    Of course, the agent can be configured to be able to run on one
+    of several nodes, making it a distributed OTP application.</p>
+
+    <p>The management information is defined in a <em>Management
+    Information Base (MIB)</em>. It is a formal definition of which
+    information the agent makes available to the manager. The
+    manager accesses the MIB through a management protocol, such
+    as SNMP, CMIP, HTTP, or CORBA. Each protocol has its own MIB
+    definition language. In SNMP, it is a subset of ASN.1, in CMIP
+    it is GDMO, in HTTP it is implicit, and using CORBA, it is IDL.</p>
+
+    <p>Usually, the entities defined in the MIB are
+    called <em>Managed Objects (MOs)</em>, although they do not
+    have to be objects in the object-oriented way. For example,
+    a simple scalar variable defined in a MIB is called an MO. The
+    MOs are logical objects, not necessarily with a one-to-one
+    mapping to the resources.</p>
   </section>
 
   <section>
     <title>Model</title>
-    <p>In this section, the generic protocol independent model for use
-      within an OTP based network element is presented.  This model is
-      used by all operation and maintenance components, and may be
-      used by the applications.  The advantage of the model is that it
-      clearly separates the resources from the management protocol.
-      The resources do not need to be aware of which management
-      protocol is used to manage the system.  This makes it possible
-      to manage the same resources with different protocols.
-      </p>
-    <p>The different entities involved in this model are the <term id="agent"></term>which terminates the management protocol, and the
-      <term id="resources"></term>which is to be managed, i.e. the actual
-      application entities.  The resources should in general have no
-      knowledge of the management protocol used, and the agent should
-      have no knowledge of the managed resources.  This implies that
-      some sort of translation mechanism must be used, to translate
-      the management operations to operations on the resources.  This
-      translation mechanism is usually called
-      <em>instrumentation</em>, and the function that implements it is
-      called <term id="instrumentation function"></term>.  The
-      instrumentation functions are written for each combination of
-      management protocol and resource to be managed.  For example, if
-      an application is to be managed by SNMP and HTTP, two sets of
-      instrumentation functions are defined; one that maps SNMP
-      requests to the resources, and one that e.g. generates an HTML
-      page for some resources.
-      </p>
-    <p>When a manager makes a request to the agent, we have the
-      following picture:</p>
+    <p>This section presents the generic protocol-independent model
+    for use within an OTP-based NE. This model is used by
+    all OAM components and can be used by the applications. The
+    advantage of the model is that it clearly separates the
+    resources from the management protocol. The resources do not
+    need to be aware of which management protocol is used to manage
+    the system. The same resources can therefore be managed with
+    different protocols.</p>
+
+    <p>The entities involved in this model are the agent, which
+    terminates the management protocol, and the resources, which
+    is to be managed, that is, the actual application entities.
+    The resources should in general have no knowledge of the
+    management protocol used, and the agent should have no
+    knowledge of the managed resources. This implies that a
+    translation mechanism is needed, to translate the management
+    operations to operations on the resources. This translation
+    mechanism is usually called <em>instrumentation</em> and the
+    function that implements it is called <em>instrumentation
+    function</em>. The instrumentation functions are written for
+    each combination of management protocol and resource to be
+    managed. For example, if an application is to be managed by
+    SNMP and HTTP, two sets of instrumentation functions are
+    defined; one that maps SNMP requests to the resources, and
+    one that, for example, generates an HTML page for some
+    resources.</p>
+
+    <p>When a manager makes a request to the agent, the following
+    illustrates the situation:</p>
+
     <image file="../oam/snmp_model_1.gif">
-      <icaption>Request to an agent by a manager</icaption>
+      <icaption>Request to An Agent by a Manager</icaption>
     </image>
-    <p>Note that the mapping between instrumentation function and
-      resource is not necessarily 1-1.  It is also possible to write
-      one instrumentation function for each resource, and use that
-      function from different protocols.
-      </p>
-    <p>The agent receives a request and maps this request to calls to
-      one or several instrumentation functions.  The instrumentation
-      functions perform operations on the resources to implement the
-      semantics associated with the managed object.
-      </p>
-    <p>For example, a system that is managed with SNMP and HTTP may be
-      structured in the following way:</p>
+
+    <p>The mapping between an instrumentation function and a
+    resource is not necessarily 1-1. It is also possible to write
+    one instrumentation function for each resource, and use that
+    function from different protocols.</p>
+
+    <p>The agent receives a request and maps it to calls to one or
+    more instrumentation functions. These functions perform
+    operations on the resources to implement the semantics
+    associated with the MO.</p>
+
+    <p>For example, a system that is managed with SNMP and HTTP
+    can be structured as follows:</p>
+
     <image file="../oam/snmp_model_2.gif">
-      <icaption>Structure of a system managed with SNMP and HTTP</icaption>
+      <icaption>Structure of a System Managed with SNMP and HTTP</icaption>
     </image>
-    <p>The resources may send notifications to the manager as well.
-      Examples of notifications are events and alarms.  There is a
-      need for the resource to generate protocol independent
-      notifications.  The following picture illustrates how this is
-      achieved:</p>
+
+    <p>The resources can send notifications to the manager as well.
+    Examples of notifications are events and alarms. The resource
+    needs to generate protocol-independent notifications.
+    The following picture illustrates how this is achieved:</p>
+
     <image file="../oam/snmp_model_3.gif">
-      <icaption>Notification handling</icaption>
+      <icaption>Notification Handling</icaption>
     </image>
-    <p>The main idea is that the resource sends the notfications as
-      Erlang terms to a dedicated <c>gen_event</c> process.  Into this
-      process, handlers for the different management protocols are
-      installed.  When an event is received by this process, it is
-      forwarded to each installed handler.  The handlers are
-      responsible for translating the event into a notification to be
-      sent over the management protocol.  For example, a handler for
-      SNMP would translate each event into an SNMP trap.
-      </p>
+
+    <p>The main idea is that the resource sends the notifications as
+    Erlang terms to a dedicated <c>gen_event</c> process. Into this
+    process, handlers for the different management protocols are
+    installed. When an event is received by this process, it is
+    forwarded to each installed handler. The handlers are
+    responsible for translating the event into a notification to be
+    sent over the management protocol. For example, a handler for
+    SNMP translates each event into an SNMP trap.</p>
   </section>
 
   <section>
-    <title>SNMP based OAM</title>
-    <p>For all OAM components, SNMP adaptations are provided.  Other
-      adaptations may be defined in the future.
-      </p>
+    <title>SNMP-Based OAM</title>
+    <p>For all OAM components, SNMP adaptations are provided. Other
+    adaptations might be defined in the future.</p>
+
     <p>The OAM components, and some other OTP applications, define
-      SNMP MIBs.  All these MIBs are written in SNMPv2 SMI syntax, as
-      defined in RFC1902.  For convenience we also deliver the SNMPv1
-      SMI equivalent.  All MIBs are designed to be v1/v2 compatible,
-      i.e. the v2 MIBs do not use any construct not available in v1.
-      </p>
+    SNMP MIBs. These MIBs are written in SNMPv2 SMI syntax, as
+    defined in RFC 1902. For convenience we also deliver the SNMPv1
+    SMI equivalent. All MIBs are designed to be v1/v2 compatible,
+    that is, the v2 MIBs do not use any construct not available in
+    v1.</p>
 
     <section>
-      <title>MIB structure</title>
-      <p>The top-level OTP MIB is called <c>OTP-REG</c>, and it is
-        included in the <c>sasl</c> application.  All other OTP mibs
-        import some objects from this MIB.
-        </p>
-      <p>Each MIB is contained in one application.  The MIB text files
-        are stored under <c><![CDATA[mibs/<MIB>.mib]]></c> in the application
-        directory. The generated <c>.hrl</c> files with constant
-        declarations are stored under <c><![CDATA[include/<MIB>.hrl]]></c>, and
-        the compiled MIBs are stored under
-        <c><![CDATA[priv/mibs/<MIB>.bin]]></c>.  For example, the <c>OTP-MIB</c>
-        is included in the <c>sasl</c> application:
-        </p>
+      <title>MIB Structure</title>
+      <p>The top-level OTP MIB is called <c>OTP-REG</c> and it is
+      included in the <c>sasl</c> application. All other OTP MIBs
+      import some objects from this MIB.</p>
+
+      <p>Each MIB is contained in one application. The MIB text
+      files are stored under <c><![CDATA[mibs/<MIB>.mib]]></c> in
+      the application directory. The generated <c>.hrl</c> files
+      with constant declarations are stored under
+      <c><![CDATA[include/<MIB>.hrl]]></c>, and the compiled MIBs
+      are stored under <c><![CDATA[priv/mibs/<MIB>.bin]]></c>.
+      For example, the <c>OTP-MIB</c> is included in the
+      <c>sasl</c> application:</p>
+
       <code type="none">
 sasl-1.3/mibs/OTP-MIB.mib
-         include/OTP-MIB.hrl
-         priv/mibs/OTP-MIB.bin</code>
-      <p>An application that needs to IMPORT this mib into another
-        MIB, should use the <c>il</c> option to the snmp mib compiler:
-        </p>
+include/OTP-MIB.hrl
+priv/mibs/OTP-MIB.bin</code>
+
+      <p>An application that needs to import this MIB into another
+      MIB is to use the <c>il</c> option to the SNMP MIB compiler:</p>
+
       <code type="none">
 snmp:c("MY-MIB", [{il, ["sasl/priv/mibs"]}]).</code>
+
       <p>If the application needs to include the generated
-        <c>.hrl</c> file, it should use the <c>-include_lib</c>
-        directive to the Erlang compiler.
-        </p>
+      <c>.hrl</c> file, it is to use the <c>-include_lib</c>
+      directive to the Erlang compiler:</p>
+
       <code type="none">
 -module(my_mib).
-
 -include_lib("sasl/include/OTP-MIB.hrl").</code>
-      <p>The following MIBs are defined in the OTP system:
-        </p>
-      <taglist>
-        <tag>OTP-REG  (sasl)</tag>
-        <item>
-          <p>This MIB contains the top-level OTP registration
-            objects, used by all other MIBs.
-            </p>
-        </item>
-        <tag>OTP-TC  (sasl)</tag>
-        <item>
-          <p>This MIB contains the general Textual Conventions,
-            which can be used by any other MIB.
-            </p>
-        </item>
-        <tag>OTP-MIB  (sasl)</tag>
-        <item>
-          <p>This MIB contains objects for instrumentation of the
-            Erlang nodes, the Erlang machines and the applications in
-            the system.
-            </p>
-        </item>
-        <tag>OTP-OS-MON-MIB  (os_mon)</tag>
-        <item>
-          <p>This MIB contains objects for instrumentation of disk,
-            memory and cpu usage of the nodes in the system.
-            </p>
-        </item>
-        <tag>OTP-SNMPEA-MIB  (snmp)</tag>
-        <item>
-          <p>This MIB contains objects for instrumentation and
-            control of the extensible snmp agent itself.  Note that
-            the agent also implements the standard SNMPv2-MIB (or v1
-            part of MIB-II, if SNMPv1 is used).
-            </p>
-        </item>
-        <tag>OTP-EVA-MIB  (eva)</tag>
-        <item>
-          <p>This MIB contains objects for instrumentation and
-            control of the events and alarms in the system.
-            </p>
-        </item>
-        <tag>OTP-LOG-MIB  (eva)</tag>
-        <item>
-          <p>This MIB contains objects for instrumentation and
-            control of the logs and FTP transfer of logs.
-            </p>
-        </item>
-        <tag>OTP-EVA-LOG-MIB  (eva)</tag>
-        <item>
-          <p>This MIB contains objects for instrumentation and
-            control of the events and alarm logs in the system.
-            </p>
-        </item>
-        <tag>OTP-SNMPEA-LOG-MIB  (eva)</tag>
-        <item>
-          <p>This MIB contains objects for instrumentation and
-            control of the snmp audit trail log in the system.
-            </p>
-        </item>
-      </taglist>
+
+      <p>The following MIBs are defined in the OTP system:</p>
+      <list type="bulleted">
+	<item><p><c>OTP-REG)</c> (in <c>sasl</c>) contains the top-level
+	OTP registration objects, used by all other MIBs.</p></item>
+	<item><p><c>OTP-TC</c> (in <c>sasl</c>) contains the general
+	Textual Conventions, which can be used by any other MIB.</p></item>
+	<item><p><c>OTP-MIB</c> (in <c>sasl</c>) contains objects for
+	instrumentation of the Erlang nodes, the Erlang machines,
+	and the applications in the system.</p></item>
+	<item><p><c>OTP-OS-MON-MIB</c> (in <c>oc_mon</c>) contains
+	objects for instrumentation of disk, memory, and CPU use
+	of the nodes in the system.</p></item>
+	<item><p><c>OTP-SNMPEA-MIB</c> (in <c>snmp</c>)
+	contains objects for instrumentation and control of the extensible
+	SNMP agent itself. The agent also implements the standard SNMPv2-MIB
+	(or v1 part of MIB-II, if SNMPv1 is used).</p></item>
+	<item><p><c>OTP-EVA-MIB</c> (in <c>eva</c>) contains objects
+	for instrumentation and control of the events and alarms in
+	the system.</p></item>
+	<item><p><c>OTP-LOG-MIB</c> (in <c>eva</c>) contains objects
+	for instrumentation and control of the logs and FTP transfer of
+	logs.</p></item>
+	<item><p><c>OTP-EVA-LOG-MIB</c> (in <c>eva</c>) contains objects
+	for instrumentation and control of the events and alarm logs
+	in the system.</p></item>
+	<item><p><c>OTP-SNMPEA-LOG-MIB</c> (in <c>eva</c>) contains
+	objects for instrumentation and control of the SNMP audit
+	trail log in the system.</p></item>
+      </list>
+
       <p>The different applications use different strategies for
-        loading the MIBs into the agent.  Some MIB implementations are
-        code-only, while others need a server.  One way, used by the
-        code-only mib implementations, is for the user to call a
-        function such as <c>otp_mib:init(Agent)</c> to load the MIB,
-        and <c>otp_mib:stop(Agent)</c> to unload the MIB.  See the
-        application manual page for each application for a description
-        of how to load each MIB.
-        </p>
+      loading the MIBs into the agent. Some MIB implementations are
+      code-only, while others need a server. One way, used by the
+      code-only MIB implementations, is for the user to call a
+      function such as <c>otp_mib:init(Agent)</c> to load the MIB,
+      and <c>otp_mib:stop(Agent)</c> to unload the MIB. See the
+      manual page for each application for a description of how
+      to load each MIB.</p>
     </section>
   </section>
 </chapter>
diff --git a/system/doc/programming_examples/bit_syntax.xml b/system/doc/programming_examples/bit_syntax.xml
index fb321c1ba9..f97f171a69 100644
--- a/system/doc/programming_examples/bit_syntax.xml
+++ b/system/doc/programming_examples/bit_syntax.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2003</year><year>2013</year>
+      <year>2003</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -31,62 +31,64 @@
 
   <section>
     <title>Introduction</title>
-    <p>In Erlang a Bin is used for constructing binaries and matching
+    <p>In Erlang, a Bin is used for constructing binaries and matching
       binary patterns. A Bin is written with the following syntax:</p>
     <code type="none"><![CDATA[
       <<E1, E2, ... En>>]]></code>
-    <p>A Bin is a low-level sequence of bits or bytes. The purpose of a Bin is
-      to be able to, from a high level, construct a binary,</p>
+    <p>A Bin is a low-level sequence of bits or bytes.
+    The purpose of a Bin is to enable construction of binaries:</p>
     <code type="none"><![CDATA[
 Bin = <<E1, E2, ... En>>]]></code>
-    <p>in which case all elements must be bound, or to match a binary,</p>
+    <p>All elements must be bound. Or match a binary:</p>
     <code type="none"><![CDATA[
 <<E1, E2, ... En>> = Bin ]]></code>
-    <p>where <c>Bin</c> is bound, and where the elements are bound or
+    <p>Here, <c>Bin</c> is bound and the elements are bound or
       unbound, as in any match.</p>
-    <p>In R12B, a Bin need not consist of a whole number of bytes.</p>
+    <p>Since Erlang R12B, a Bin does not need to consist of a whole number of bytes.</p>
 
     <p>A <em>bitstring</em> is a sequence of zero or more bits, where
-    the number of bits doesn't need to be divisible by 8. If the number
+    the number of bits does not need to be divisible by 8. If the number
     of bits is divisible by 8, the bitstring is also a binary.</p>
     <p>Each element specifies a certain <em>segment</em> of the bitstring.
       A segment is a set of contiguous bits of the binary (not
       necessarily on a byte boundary). The first element specifies
       the initial segment, the second element specifies the following
-      segment etc.</p>
-    <p>The following examples illustrate how binaries are constructed
+      segment, and so on.</p>
+    <p>The following examples illustrate how binaries are constructed,
       or matched, and how elements and tails are specified.</p>
 
     <section>
       <title>Examples</title>
-      <p><em>Example 1: </em>A binary can be constructed from a set of
+      <p><em>Example 1:</em> A binary can be constructed from a set of
         constants or a string literal:</p>
       <code type="none"><![CDATA[
 Bin11 = <<1, 17, 42>>,
 Bin12 = <<"abc">>]]></code>
-      <p>yields binaries of size 3; <c>binary_to_list(Bin11)</c>
-        evaluates to <c>[1, 17, 42]</c>, and
-        <c>binary_to_list(Bin12)</c> evaluates to <c>[97, 98, 99]</c>.</p>
-      <p><em>Example 2: </em>Similarly, a binary can be constructed
+      <p>This gives two binaries of size 3, with the following evaluations:</p>
+	<list type="bulleted">
+       <item><c>binary_to_list(Bin11)</c> evaluates to <c>[1, 17, 42]</c>.</item>
+       <item><c>binary_to_list(Bin12)</c> evaluates to <c>[97, 98, 99]</c>.</item>
+     </list>
+      <p><em>Example 2:</em>Similarly, a binary can be constructed
         from a set of bound variables:</p>
       <code type="none"><![CDATA[
 A = 1, B = 17, C = 42,
 Bin2 = <<A, B, C:16>>]]></code>
-      <p>yields a binary of size 4, and <c>binary_to_list(Bin2)</c>
-        evaluates to <c>[1, 17, 00, 42]</c> too. Here we used a
-        <em>size expression</em> for the variable <c>C</c> in order to
+      <p>This gives a binary of size 4.
+      Here, a <em>size expression</em> is used for the variable <c>C</c> to
         specify a 16-bits segment of <c>Bin2</c>.</p>
-      <p><em>Example 3: </em>A Bin can also be used for matching: if
+	<p><c>binary_to_list(Bin2)</c> evaluates to <c>[1, 17, 00, 42]</c>.</p>
+      <p><em>Example 3:</em> A Bin can also be used for matching.
         <c>D</c>, <c>E</c>, and <c>F</c> are unbound variables, and
-        <c>Bin2</c> is bound as in the former example,</p>
+        <c>Bin2</c> is bound, as in Example 2:</p>
       <code type="none"><![CDATA[
 <<D:16, E, F/binary>> = Bin2]]></code>
-      <p>yields <c>D = 273</c>, <c>E = 00</c>, and F binds to a binary
+      <p>This gives <c>D = 273</c>, <c>E = 00</c>, and F binds to a binary
         of size 1: <c>binary_to_list(F) = [42]</c>.</p>
       <p><em>Example 4:</em> The following is a more elaborate example
-        of matching, where <c>Dgram</c> is bound to the consecutive
-        bytes of an IP datagram of IP protocol version 4, and where we
-        want to extract the header and the data of the datagram:</p>
+        of matching. Here, <c>Dgram</c> is bound to the consecutive
+        bytes of an IP datagram of IP protocol version 4. The ambition is
+      to extract the header and the data of the datagram:</p>
       <code type="none"><![CDATA[
 -define(IP_VERSION, 4).
 -define(IP_MIN_HDR_LEN, 5).
@@ -102,53 +104,59 @@ case Dgram of
         <<Opts:OptsLen/binary,Data/binary>> = RestDgram,
     ...
 end.]]></code>
-      <p>Here the segment corresponding to the <c>Opts</c> variable
-        has a <em>type modifier</em> specifying that <c>Opts</c> should
+      <p>Here, the segment corresponding to the <c>Opts</c> variable
+        has a <em>type modifier</em>, specifying that <c>Opts</c> is to
         bind to a binary. All other variables have the default type
         equal to unsigned integer.</p>
-      <p>An IP datagram header is of variable length, and its length -
-        measured in the number of 32-bit words - is given in
-        the segment corresponding to <c>HLen</c>, the minimum value of
-        which is 5. It is the segment corresponding to <c>Opts</c>
-        that is variable: if <c>HLen</c> is equal to 5, <c>Opts</c>
-        will be an empty binary.</p>
+      <p>An IP datagram header is of variable length. This length is
+        measured in the number of 32-bit words and is given in
+        the segment corresponding to <c>HLen</c>. The minimum value of
+        <c>HLen</c> is 5. It is the segment corresponding to <c>Opts</c>
+        that is variable, so if <c>HLen</c> is equal to 5, <c>Opts</c>
+        becomes an empty binary.</p>
       <p>The tail variables <c>RestDgram</c> and <c>Data</c> bind to
-        binaries, as all tail variables do. Both may bind to empty
+        binaries, as all tail variables do. Both can bind to empty
         binaries.</p>
-      <p>If the first 4-bits segment of <c>Dgram</c> is not equal to
-        4, or if <c>HLen</c> is less than 5, or if the size of
-        <c>Dgram</c> is less than <c>4*HLen</c>, the match of
-        <c>Dgram</c> fails.</p>
+	<p>The match of <c>Dgram</c> fails if one of the following occurs:</p>
+	<list type="bulleted">
+       <item>The first 4-bits segment of <c>Dgram</c> is not equal to 4.</item>
+       <item><c>HLen</c> is less than 5.</item>
+       <item>The size of <c>Dgram</c> is less than <c>4*HLen</c>.</item>
+     </list>
     </section>
   </section>
 
   <section>
-    <title>A Lexical Note</title>
-    <p>Note that "<c><![CDATA[B=<<1>>]]></c>" will be interpreted as
+    <title>Lexical Note</title>
+    <p>Notice that "<c><![CDATA[B=<<1>>]]></c>" will be interpreted as
       "<c><![CDATA[B =< <1>>]]></c>", which is a syntax error.
-      The correct way to write the expression is
-      "<c><![CDATA[B = <<1>>]]></c>".</p>
+      The correct way to write the expression is:
+      <c><![CDATA[B = <<1>>]]></c>.</p>
   </section>
 
   <section>
     <title>Segments</title>
     <p>Each segment has the following general syntax:</p>
     <p><c>Value:Size/TypeSpecifierList</c></p>
-    <p>Both the <c>Size</c> and the <c>TypeSpecifier</c> or both may be
-      omitted; thus the following variations are allowed:</p>
-    <p><c>Value</c></p>
-    <p><c>Value:Size</c></p>
-    <p><c>Value/TypeSpecifierList</c></p>
-    <p>Default values will be used for missing specifications.
-      The default values are described in the section
+    <p>The <c>Size</c> or the <c>TypeSpecifier</c>, or both, can be
+      omitted. Thus, the following variants are allowed:</p>
+      <list type="bulleted">
+       <item><c>Value</c></item>
+       <item><c>Value:Size</c></item>
+       <item><c>Value/TypeSpecifierList</c></item>
+     </list>
+    <p>Default values are used when specifications are missing.
+      The default values are described in
       <seealso marker="#Defaults">Defaults</seealso>.</p>
-    <p>Used in binary construction, the <c>Value</c> part is any
-      expression. Used in binary matching, the <c>Value</c> part must
-      be a literal or variable. You can read more about
-      the <c>Value</c> part in the section about constructing
-      binaries and matching binaries.</p>
+    <p>The <c>Value</c> part is any expression, when used in binary construction.
+      Used in binary matching, the <c>Value</c> part must
+      be a literal or a variable. For more information about
+      the <c>Value</c> part, see
+      <seealso marker="#Constructing Binaries and Bitstrings">Constructing Binaries and Bitstrings</seealso>
+      and
+      <seealso marker="#Matching Binaries">Matching Binaries</seealso>.</p>
     <p>The <c>Size</c> part of the segment multiplied by the unit in
-      the <c>TypeSpecifierList</c> (described below) gives the number
+      <c>TypeSpecifierList</c> (described later) gives the number
       of bits for the segment. In construction, <c>Size</c> is any
       expression that evaluates to an integer. In matching,
       <c>Size</c> must be a constant expression or a variable.</p>
@@ -160,22 +168,22 @@ end.]]></code>
       <c>binary</c>.</item>
       <tag>Signedness</tag>
       <item>The signedness specification can be either <c>signed</c>
-       or <c>unsigned</c>. Note that signedness only matters for
+       or <c>unsigned</c>. Notice that signedness only matters for
        matching.</item>
       <tag>Endianness</tag>
       <item>The endianness specification can be either <c>big</c>,
       <c>little</c>, or <c>native</c>. Native-endian means that
-       the endian will be resolved at load time to be either
+       the endian is resolved at load time, to be either
        big-endian or little-endian, depending on what is "native"
        for the CPU that the Erlang machine is run on.</item>
       <tag>Unit</tag>
       <item>The unit size is given as <c>unit:IntegerLiteral</c>.
-       The allowed range is 1-256. It will be multiplied by
+       The allowed range is 1-256. It is multiplied by
        the <c>Size</c> specifier to give the effective size of
-       the segment. In R12B, the unit size specifies the alignment
-       for binary segments without size (examples will follow).</item>
+       the segment. Since Erlang R12B, the unit size specifies the alignment
+       for binary segments without size.</item>
     </taglist>
-    <p>Example:</p>
+    <p><em>Example:</em></p>
     <code type="none">
 X:4/little-signed-integer-unit:8</code>
     <p>This element has a total size of 4*8 = 32 bits, and it contains
@@ -184,13 +192,14 @@ X:4/little-signed-integer-unit:8</code>
 
   <section>
     <title>Defaults</title>
-    <p><marker id="Defaults"></marker>The default type for a segment is integer. The default
+    <p><marker id="Defaults"></marker>The default type for
+     a segment is integer. The default
       type does not depend on the value, even if the value is a
-      literal. For instance, the default type in '<c><![CDATA[<<3.14>>]]></c>' is
+      literal. For example, the default type in <c><![CDATA[<<3.14>>]]></c> is
       integer, not float.</p>
     <p>The default <c>Size</c> depends on the type. For integer it is
       8. For float it is 64. For binary it is all of the binary. In
-      matching, this default value is only valid for the very last
+      matching, this default value is only valid for the last
       element. All other binary elements in matching must have a size
       specification.</p>
     <p>The default unit depends on the the type. For <c>integer</c>,
@@ -201,61 +210,60 @@ X:4/little-signed-integer-unit:8</code>
 
   <section>
     <title>Constructing Binaries and Bitstrings</title>
+    <marker id="Constructing Binaries and Bitstrings"></marker>
     <p>This section describes the rules for constructing binaries using
       the bit syntax. Unlike when constructing lists or tuples,
       the construction of a binary can fail with a <c>badarg</c>
       exception.</p>
     <p>There can be zero or more segments in a binary to be
-      constructed. The expression '<c><![CDATA[<<>>]]></c>' constructs a zero
+      constructed. The expression <c><![CDATA[<<>>]]></c> constructs a zero
       length binary.</p>
     <p>Each segment in a binary can consist of zero or more bits.
       There are no alignment rules for individual segments of type
       <c>integer</c> and <c>float</c>. For binaries and bitstrings
       without size, the unit specifies the alignment. Since the default
       alignment for the <c>binary</c> type is 8, the size of a binary
-      segment must be a multiple of 8 bits (i.e. only whole bytes).
-      Example:</p>
+      segment must be a multiple of 8 bits, that is, only whole bytes.</p>
+      <p><em>Example:</em></p>
     <code type="none"><![CDATA[
 <<Bin/binary,Bitstring/bitstring>>]]></code>
     <p>The variable <c>Bin</c> must contain a whole number of bytes,
     because the <c>binary</c> type defaults to <c>unit:8</c>.
-    A <c>badarg</c> exception will be generated if <c>Bin</c> would
-    consist of (for instance) 17 bits.</p>
+    A <c>badarg</c> exception is generated if <c>Bin</c>
+    consist of, for example, 17 bits.</p>
 
-    <p>On the other hand, the variable <c>Bitstring</c> may consist of
-    any number of bits, for instance 0, 1, 8, 11, 17, 42, and so on,
-    because the default <c>unit</c> for bitstrings is 1.</p>
+    <p>The <c>Bitstring</c> variable can consist of
+    any number of bits, for example, 0, 1, 8, 11, 17, 42, and so on.
+    This is because the default <c>unit</c> for bitstrings is 1.</p>
 
-    <warning><p>For clarity, it is recommended not to change the unit
-    size for binaries, but to use <c>binary</c> when you need byte
-    alignment, and <c>bitstring</c> when you need bit alignment.</p></warning>
+    <p>For clarity, it is recommended not to change the unit
+    size for binaries. Instead, use <c>binary</c> when you need byte alignment
+    and <c>bitstring</c> when you need bit alignment.</p>
 
-    <p>The following example</p>
+    <p>The following example successfully constructs a bitstring of 7 bits,
+      provided that all of X and Y are integers:</p>
     <code type="none"><![CDATA[
 <<X:1,Y:6>>]]></code>
-    <p>will successfully construct a bitstring of 7 bits.
-      (Provided that all of X and Y are integers.)</p>
-    <p>As noted earlier, segments have the following general syntax:</p>
+    <p>As mentioned earlier, segments have the following general syntax:</p>
     <p><c>Value:Size/TypeSpecifierList</c></p>
     <p>When constructing binaries, <c>Value</c> and <c>Size</c> can be
       any Erlang expression. However, for syntactical reasons, both
       <c>Value</c> and <c>Size</c> must be enclosed in parenthesis if
       the expression consists of anything more than a single literal
-      or variable. The following gives a compiler syntax error:</p>
+      or a variable. The following gives a compiler syntax error:</p>
     <code type="none"><![CDATA[
 <<X+1:8>>]]></code>
-    <p>This expression must be rewritten to</p>
+    <p>This expression must be rewritten into the following,
+    to be accepted by the compiler:</p>
     <code type="none"><![CDATA[
 <<(X+1):8>>]]></code>
-    <p>in order to be accepted by the compiler.</p>
 
     <section>
       <title>Including Literal Strings</title>
-      <p>As syntactic sugar, an literal string may be written instead
-        of a element.</p>
+      <p>A literal string can be written instead of an element:</p>
       <code type="none"><![CDATA[
 <<"hello">>]]></code>
-      <p>which is syntactic sugar for</p>
+      <p>This is syntactic sugar for the following:</p>
       <code type="none"><![CDATA[
 <<$h,$e,$l,$l,$o>>]]></code>
     </section>
@@ -263,29 +271,30 @@ X:4/little-signed-integer-unit:8</code>
 
   <section>
     <title>Matching Binaries</title>
-    <p>This section describes the rules for matching binaries using
+    <marker id="Matching Binaries"></marker>
+    <p>This section describes the rules for matching binaries, using
       the bit syntax.</p>
     <p>There can be zero or more segments in a binary pattern.
-      A binary pattern can occur in every place patterns are allowed,
-      also inside other patterns. Binary patterns cannot be nested.</p>
-    <p>The pattern '<c><![CDATA[<<>>]]></c>' matches a zero length binary.</p>
-    <p>Each segment in a binary can consist of zero or more bits.</p>
-    <p>A segment of type <c>binary</c> must have a size evenly
-      divisible by 8 (or divisible by the unit size, if the unit size has been changed).</p>
-    <p>A segment of type <c>bitstring</c> has no restrictions on the size.</p>
-    <p>As noted earlier, segments have the following general syntax:</p>
+      A binary pattern can occur wherever patterns are allowed,
+      including inside other patterns. Binary patterns cannot be nested.
+      The pattern <c><![CDATA[<<>>]]></c> matches a zero length binary.</p>
+    <p>Each segment in a binary can consist of zero or more bits.
+       A segment of type <c>binary</c> must have a size evenly divisible by 8
+    (or divisible by the unit size, if the unit size has been changed).
+    A segment of type <c>bitstring</c> has no restrictions on the size.</p>
+    <p>As mentioned earlier, segments have the following general syntax:</p>
     <p><c>Value:Size/TypeSpecifierList</c></p>
-    <p>When matching <c>Value</c> value must be either a variable or
-      an integer or floating point literal. Expressions are not
+    <p>When matching <c>Value</c>, value must be either a variable or
+      an integer, or a floating point literal. Expressions are not
       allowed.</p>
     <p><c>Size</c> must be an integer literal, or a previously bound
-      variable. Note that the following is not allowed:</p>
+      variable. The following is not allowed:</p>
     <code type="none"><![CDATA[
 foo(N, <<X:N,T/binary>>) ->
    {X,T}.]]></code>
     <p>The two occurrences of <c>N</c> are not related. The compiler
       will complain that the <c>N</c> in the size field is unbound.</p>
-    <p>The correct way to write this example is like this:</p>
+    <p>The correct way to write this example is as follows:</p>
     <code type="none"><![CDATA[
 foo(N, Bin) ->
    <<X:N,T/binary>> = Bin,
@@ -303,14 +312,14 @@ foo(<<A:8,Rest/binary>>) ->]]></code>
         without size:</p>
       <code type="none"><![CDATA[
 foo(<<A:8,Rest/bitstring>>) ->]]></code>
-      <p>There is no restriction on the number of bits in the tail.</p>
+      <p>There are no restrictions on the number of bits in the tail.</p>
     </section>
   </section>
 
   <section>
     <title>Appending to a Binary</title>
-    <p>In R12B, the following function for creating a binary out of
-    a list of triples of integers is now efficient:</p>
+    <p>Since Erlang R12B, the following function for creating a binary out of
+    a list of triples of integers is efficient:</p>
     <code type="none"><![CDATA[
 triples_to_bin(T) ->
     triples_to_bin(T, <<>>).
@@ -321,7 +330,9 @@ triples_to_bin([], Acc) ->
     Acc.]]></code>
     <p>In previous releases, this function was highly inefficient, because
     the binary constructed so far (<c>Acc</c>) was copied in each recursion step.
-    That is no longer the case. See the Efficiency Guide for more information.</p>
+    That is no longer the case. For more information, see
+    <seealso marker="doc/efficiency_guide:introduction">
+    Efficiency Guide</seealso>.</p>
   </section>
 </chapter>
 
diff --git a/system/doc/programming_examples/funs.xmlsrc b/system/doc/programming_examples/funs.xmlsrc
index 7bfac9db8c..d4c32bc854 100644
--- a/system/doc/programming_examples/funs.xmlsrc
+++ b/system/doc/programming_examples/funs.xmlsrc
@@ -30,146 +30,138 @@
   </header>
 
   <section>
-    <title>Example 1 - map</title>
-    <p>If we want to double every element in a list, we could write a
-      function named <c>double</c>:</p>
+    <title>map</title>
+    <p>The following function, <c>double</c>, doubles every element in a list:</p>
     <code type="none">
 double([H|T]) -> [2*H|double(T)];
 double([])    -> [].</code>
-    <p>This function obviously doubles the argument entered as input
-      as follows:</p>
+    <p>Hence, the argument entered as input is doubled as follows:</p>
     <pre>
 > <input>double([1,2,3,4]).</input>
 [2,4,6,8]</pre>
-    <p>We now add the function <c>add_one</c>, which adds one to every
+    <p>The following function, <c>add_one</c>, adds one to every
       element in a list:</p>
     <code type="none">
 add_one([H|T]) -> [H+1|add_one(T)];
 add_one([])    -> [].</code>
-    <p>These functions, <c>double</c> and <c>add_one</c>, have a very
-      similar structure. We can exploit this fact and write a function
-      <c>map</c> which expresses this similarity:</p>
+    <p>The functions <c>double</c> and <c>add_one</c> have a
+      similar structure. This can be used by writing a function
+      <c>map</c> that expresses this similarity:</p>
     <codeinclude file="funs1.erl" tag="%1" type="erl"></codeinclude>
-    <p>We can now express the functions <c>double</c> and
-      <c>add_one</c> in terms of <c>map</c> as follows:</p>
+    <p>The functions <c>double</c> and <c>add_one</c> can now be expressed
+    in terms of <c>map</c> as follows:</p>
     <code type="none">
 double(L)  -> map(fun(X) -> 2*X end, L).
 add_one(L) -> map(fun(X) -> 1 + X end, L).</code>
-    <p><c>map(F, List)</c> is a function which takes a function
-      <c>F</c> and a list <c>L</c> as arguments and returns the new
-      list which is obtained by applying <c>F</c> to each of
+    <p><c>map(F, List)</c> is a function that takes a function
+      <c>F</c> and a list <c>L</c> as arguments and returns a new
+      list, obtained by applying <c>F</c> to each of
       the elements in <c>L</c>.</p>
     <p>The process of abstracting out the common features of a number
-      of different programs is called procedural abstraction.
-      Procedural abstraction can be used in order to write several
-      different functions which have a similar structure, but differ
-      only in some minor detail. This is done as follows:</p>
+      of different programs is called <em>procedural abstraction</em>.
+      Procedural abstraction can be used to write several
+      different functions that have a similar structure, but differ
+      in some minor detail. This is done as follows:</p>
     <list type="ordered">
-      <item>write one function which represents the common features of
-       these functions</item>
-      <item>parameterize the difference in terms of functions which
+      <item><em>Step 1.</em> Write one function that represents the common features of
+       these functions.</item>
+      <item><em>Step 2.</em> Parameterize the difference in terms of functions that
        are passed as arguments to the common function.</item>
     </list>
   </section>
 
   <section>
-    <title>Example 2 - foreach</title>
-    <p>This example illustrates procedural abstraction. Initially, we
-      show the following two examples written as conventional
-      functions:</p>
-    <list type="ordered">
-      <item>all elements of a list are printed onto a stream</item>
-      <item>a message is broadcast to a list of processes.</item>
-    </list>
+    <title>foreach</title>
+    <p>This section illustrates procedural abstraction. Initially,
+    the following two examples are written as conventional
+      functions.</p>
+      <p>This function prints all elements of a list onto a stream:</p>
     <code type="none">
 print_list(Stream, [H|T]) ->
     io:format(Stream, "~p~n", [H]),
     print_list(Stream, T);
 print_list(Stream, []) ->
     true.</code>
+     <p>This function broadcasts a message to a list of processes:</p>
     <code type="none">
 broadcast(Msg, [Pid|Pids]) ->
     Pid ! Msg,
     broadcast(Msg, Pids);
 broadcast(_, []) ->
     true.</code>
-    <p>Both these functions have a very similar structure. They both
-      iterate over a list doing something to each element in the list.
-      The "something" has to be carried round as an extra argument to
-      the function which does this.</p>
+    <p>These two functions have a similar structure. They both
+      iterate over a list and do something to each element in the list.
+      The "something" is passed on as an extra argument to
+      the function that does this.</p>
     <p>The function <c>foreach</c> expresses this similarity:</p>
     <codeinclude file="funs1.erl" tag="%2" type="erl"></codeinclude>
-    <p>Using <c>foreach</c>, <c>print_list</c> becomes:</p>
+    <p>Using the function <c>foreach</c>, the function <c>print_list</c> becomes:</p>
     <code type="none">
 foreach(fun(H) -> io:format(S, "~p~n",[H]) end, L)</code>
-    <p><c>broadcast</c> becomes:</p>
+     <p>Using the function <c>foreach</c>, the function <c>broadcast</c> becomes:</p>
     <code type="none">
 foreach(fun(Pid) -> Pid ! M end, L)</code>
     <p><c>foreach</c> is evaluated for its side-effect and not its
       value. <c>foreach(Fun ,L)</c> calls <c>Fun(X)</c> for each
       element <c>X</c> in <c>L</c> and the processing occurs in
-      the order in which the elements were defined in <c>L</c>.
+      the order that the elements were defined in <c>L</c>.
       <c>map</c> does not define the order in which its elements are
       processed.</p>
   </section>
 
   <section>
-    <title>The Syntax of Funs</title>
-    <p>Funs are written with the syntax:</p>
+    <title>Syntax of Funs</title>
+    <p>Funs are written with the following syntax:</p>
     <code type="none">
 F = fun (Arg1, Arg2, ... ArgN) ->
         ...
     end</code>
     <p>This creates an anonymous function of <c>N</c> arguments and
       binds it to the variable <c>F</c>.</p>
-    <p>If we have already written a function in the same module and
-      wish to pass this function as an argument, we can use
-      the following syntax:</p>
+    <p>Another function, <c>FunctionName</c>, written in the same module,
+    can be passed as an argument, using the following syntax:</p>
     <code type="none">
 F = fun FunctionName/Arity</code>
-    <p>With this form of function reference, the function which is
+    <p>With this form of function reference, the function that is
       referred to does not need to be exported from the module.</p>
-    <p>We can also refer to a function defined in a different module
+    <p>It is also possible to refer to a function defined in a different module,
       with the following syntax:</p>
     <code type="none">
-F = {Module, FunctionName}</code>
+F = fun Module:FunctionName/Arity</code>
     <p>In this case, the function must be exported from the module in
       question.</p>
-    <p>The follow program illustrates the different ways of creating
+    <p>The following program illustrates the different ways of creating
       funs:</p>
     <codeinclude file="fun_test.erl" tag="%1" type="erl"></codeinclude>
-    <p>We can evaluate the fun <c>F</c> with the syntax:</p>
+    <p>The fun <c>F</c> can be evaluated with the following syntax:</p>
     <code type="none">
 F(Arg1, Arg2, ..., Argn)</code>
     <p>To check whether a term is a fun, use the test
-      <c>is_function/1</c> in a guard. Example:</p>
+      <c>is_function/1</c> in a guard.</p>
+      <p><em>Example:</em></p>
     <code type="none">
 f(F, Args) when is_function(F) ->
    apply(F, Args);
 f(N, _) when is_integer(N) ->
    N.</code>
-    <p>Funs are a distinct type. The BIFs erlang:fun_info/1,2 can
+    <p>Funs are a distinct type. The BIFs <c>erlang:fun_info/1,2</c> can
       be used to retrieve information about a fun, and the BIF
-      erlang:fun_to_list/1 returns a textual representation of a fun.
-      The check_process_code/2 BIF returns true if the process
+      <c>erlang:fun_to_list/1</c> returns a textual representation of a fun.
+      The <c>check_process_code/2</c> BIF returns <c>true</c> if the process
       contains funs that depend on the old version of a module.</p>
-    <note>
-      <p>In OTP R5 and earlier releases, funs were represented using
-        tuples.</p>
-    </note>
   </section>
 
   <section>
     <title>Variable Bindings Within a Fun</title>
-    <p>The scope rules for variables which occur in funs are as
+    <p>The scope rules for variables that occur in funs are as
       follows:</p>
     <list type="bulleted">
-      <item>All variables which occur in the head of a fun are assumed
+      <item>All variables that occur in the head of a fun are assumed
        to be "fresh" variables.</item>
-      <item>Variables which are defined before the fun, and which
+      <item>Variables that are defined before the fun, and that
        occur in function calls or guard tests within the fun, have
        the values they had outside the fun.</item>
-      <item>No variables may be exported from a fun.</item>
+      <item>Variables cannot be exported from a fun.</item>
     </list>
     <p>The following examples illustrate these rules:</p>
     <code type="none">
@@ -177,12 +169,13 @@ print_list(File, List) ->
     {ok, Stream} = file:open(File, write),
     foreach(fun(X) -> io:format(Stream,"~p~n",[X]) end, List),
     file:close(Stream).</code>
-    <p>In the above example, the variable <c>X</c> which is defined in
-      the head of the fun is a new variable. The value of the variable
-      <c>Stream</c> which is used within within the fun gets its value
+    <p>Here, the variable <c>X</c>, defined in
+      the head of the fun, is a new variable. The variable
+      <c>Stream</c>, which is used within the fun, gets its value
       from the <c>file:open</c> line.</p>
-    <p>Since any variable which occurs in the head of a fun is
-      considered a new variable it would be equally valid to write:</p>
+    <p>As any variable that occurs in the head of a fun is
+      considered a new variable, it is equally valid to write
+      as follows:</p>
     <code type="none">
 print_list(File, List) ->
     {ok, Stream} = file:open(File, write),
@@ -190,21 +183,21 @@ print_list(File, List) ->
                 io:format(Stream,"~p~n",[File]) 
             end, List),
     file:close(Stream).</code>
-    <p>In this example, <c>File</c> is used as the new variable
-      instead of <c>X</c>. This is rather silly since code in the body
-      of the fun cannot refer to the variable <c>File</c> which is
-      defined outside the fun. Compiling this example will yield
-      the diagnostic:</p>
+    <p>Here, <c>File</c> is used as the new variable
+      instead of <c>X</c>. This is not so wise because code in the fun
+      body cannot refer to the variable <c>File</c>, which is
+      defined outside of the fun. Compiling this example gives
+      the following diagnostic:</p>
     <code type="none">
 ./FileName.erl:Line: Warning: variable 'File' 
-      shadowed in 'lambda head'</code>
-    <p>This reminds us that the variable <c>File</c> which is defined
-      inside the fun collides with the variable <c>File</c> which is
+      shadowed in 'fun'</code>
+    <p>This indicates that the variable <c>File</c>, which is defined
+      inside the fun, collides with the variable <c>File</c>, which is
       defined outside the fun.</p>
     <p>The rules for importing variables into a fun has the consequence
-      that certain pattern matching operations have to be moved into
+      that certain pattern matching operations must be moved into
       guard expressions and cannot be written in the head of the fun.
-      For example, we might write the following code if we intend
+      For example, you might write the following code if you intend
       the first clause of <c>F</c> to be evaluated when the value of
       its argument is <c>Y</c>:</p>
     <code type="none">
@@ -216,7 +209,7 @@ f(...) ->
              ...
         end, ...)
     ...</code>
-    <p>instead of</p>
+    <p>instead of writng the following code:</p>
     <code type="none">
 f(...) ->
     Y = ...
@@ -229,35 +222,37 @@ f(...) ->
   </section>
 
   <section>
-    <title>Funs and the Module Lists</title>
+    <title>Funs and Module Lists</title>
     <p>The following examples show a dialogue with the Erlang shell.
       All the higher order functions discussed are exported from
       the module <c>lists</c>.</p>
 
     <section>
       <title>map</title>
+      <p><c>map</c> takes a function of one argument and a list of terms:</p>
       <codeinclude file="funs1.erl" tag="%1" type="erl"></codeinclude>
-      <p><c>map</c> takes a function of one argument and a list of
-        terms. It returns the list obtained by applying the function
+      <p>It returns the list obtained by applying the function
         to every argument in the list.</p>
+	<p>When a new fun is defined in the shell, the value of the fun
+        is printed as <c><![CDATA[Fun#<erl_eval>]]></c>:</p>
       <pre>
 > <input>Double = fun(X) -> 2 * X end.</input>
 #Fun&lt;erl_eval.6.72228031&gt;
 > <input>lists:map(Double, [1,2,3,4,5]).</input>
 [2,4,6,8,10]</pre>
-      <p>When a new fun is defined in the shell, the value of the Fun
-        is printed as <c><![CDATA[Fun#<erl_eval>]]></c>.</p>
+
     </section>
 
     <section>
       <title>any</title>
-      <codeinclude file="funs1.erl" tag="%4" type="erl"></codeinclude>
       <p><c>any</c> takes a predicate <c>P</c> of one argument and a
-        list of terms. A predicate is a function which returns
-        <c>true</c> or <c>false</c>. <c>any</c> is true if there is a
-        term <c>X</c> in the list such that <c>P(X)</c> is <c>true</c>.</p>
-      <p>We define a predicate <c>Big(X)</c> which is <c>true</c> if
-        its argument is greater that 10.</p>
+        list of terms:</p>
+      <codeinclude file="funs1.erl" tag="%4" type="erl"></codeinclude>
+      <p>A predicate is a function that returns <c>true</c> or <c>false</c>.
+      <c>any</c> is <c>true</c> if there is a term <c>X</c> in the list such that
+      <c>P(X)</c> is <c>true</c>.</p>
+      <p>A predicate <c>Big(X)</c> is defined, which is <c>true</c> if
+        its argument is greater that 10:</p>
       <pre>
 > <input>Big =  fun(X) -> if X > 10 -> true; true -> false end end.</input>
 #Fun&lt;erl_eval.6.72228031&gt;
@@ -269,9 +264,10 @@ true</pre>
 
     <section>
       <title>all</title>
+      <p><c>all</c> has the same arguments as <c>any</c>:</p>
       <codeinclude file="funs1.erl" tag="%3" type="erl"></codeinclude>
-      <p><c>all</c> has the same arguments as <c>any</c>. It is true
-        if the predicate applied to all elements in the list is true.</p>
+      <p>It is <c>true</c>
+        if the predicate applied to all elements in the list is <c>true</c>.</p>
       <pre>
 > <input>lists:all(Big, [1,2,3,4,12,6]).</input>   
 false
@@ -281,11 +277,12 @@ true</pre>
 
     <section>
       <title>foreach</title>
-      <codeinclude file="funs1.erl" tag="%2" type="erl"></codeinclude>
       <p><c>foreach</c> takes a function of one argument and a list of
-        terms. The function is applied to each argument in the list.
-        <c>foreach</c> returns <c>ok</c>. It is used for its
-        side-effect only.</p>
+        terms:</p>
+      <codeinclude file="funs1.erl" tag="%2" type="erl"></codeinclude>
+      <p>The function is applied to each argument in the list.
+        <c>foreach</c> returns <c>ok</c>. It is only used for its
+        side-effect:</p>
       <pre>
 > <input>lists:foreach(fun(X) -> io:format("~w~n",[X]) end, [1,2,3,4]).</input> 
 1
@@ -297,15 +294,16 @@ ok</pre>
 
     <section>
       <title>foldl</title>
-      <codeinclude file="funs1.erl" tag="%8" type="erl"></codeinclude>
       <p><c>foldl</c> takes a function of two arguments, an
-        accumulator and a list. The function is called with two
+        accumulator and a list:</p>
+      <codeinclude file="funs1.erl" tag="%8" type="erl"></codeinclude>
+      <p>The function is called with two
         arguments. The first argument is the successive elements in
-        the list, the second argument is the accumulator. The function
-        must return a new accumulator which is used the next time
+        the list. The second argument is the accumulator. The function
+        must return a new accumulator, which is used the next time
         the function is called.</p>
-      <p>If we have a list of lists <c>L = ["I","like","Erlang"]</c>,
-        then we can sum the lengths of all the strings in <c>L</c> as
+      <p>If you have a list of lists <c>L = ["I","like","Erlang"]</c>,
+        then you can sum the lengths of all the strings in <c>L</c> as
         follows:</p>
       <pre>
 > <input>L = ["I","like","Erlang"].</input>
@@ -325,11 +323,11 @@ end</code>
 
     <section>
       <title>mapfoldl</title>
+      <p><c>mapfoldl</c> simultaneously maps and folds over a list:</p>
       <codeinclude file="funs1.erl" tag="%10" type="erl"></codeinclude>
-      <p><c>mapfoldl</c> simultaneously maps and folds over a list.
-        The following example shows how to change all letters in
-        <c>L</c> to upper case and count them.</p>
-      <p>First upcase:</p>
+      <p>The following example shows how to change all letters in
+        <c>L</c> to upper case and then count them.</p>
+      <p>First the change to upper case:</p>
       <pre>
 > <input>Upcase =  fun(X) when $a =&lt; X,  X =&lt; $z -> X + $A - $a;</input>
 <input>(X) -> X</input> 
@@ -344,7 +342,7 @@ end</code>
 "ERLANG"
 > <input>lists:map(Upcase_word, L).</input>
 ["I","LIKE","ERLANG"]</pre>
-      <p>Now we can do the fold and the map at the same time:</p>
+      <p>Now, the fold and the map can be done at the same time:</p>
       <pre>
 > <input>lists:mapfoldl(fun(Word, Sum) -></input>
 <input>{Upcase_word(Word), Sum + length(Word)}</input>
@@ -354,23 +352,24 @@ end</code>
 
     <section>
       <title>filter</title>
-      <codeinclude file="funs1.erl" tag="%9" type="erl"></codeinclude>
       <p><c>filter</c> takes a predicate of one argument and a list
-        and returns all element in the list which satisfy
-        the predicate.</p>
+        and returns all elements in the list that satisfy
+        the predicate:</p>
+      <codeinclude file="funs1.erl" tag="%9" type="erl"></codeinclude>
       <pre>
 > <input>lists:filter(Big, [500,12,2,45,6,7]).</input>
 [500,12,45]</pre>
-      <p>When we combine maps and filters we can write very succinct
-        code. For example, suppose we want to define a set difference
-        function. We want to define <c>diff(L1, L2)</c> to be
-        the difference between the lists <c>L1</c> and <c>L2</c>.
-        This is the list of all elements in L1 which are not contained
-        in L2. This code can be written as follows:</p>
+      <p>Combining maps and filters enables writing of very succinct
+        code. For example, to define a set difference
+        function <c>diff(L1, L2)</c> to be
+        the difference between the lists <c>L1</c> and <c>L2</c>,
+        the code can be written as follows:</p>
       <code type="none">
 diff(L1, L2) -> 
     filter(fun(X) -> not member(X, L2) end, L1).</code>
-      <p>The AND intersection of the list <c>L1</c> and <c>L2</c> is
+      <p>This gives the list of all elements in L1 that are not contained
+        in L2.</p>
+	<p> The AND intersection of the list <c>L1</c> and <c>L2</c> is
         also easily defined:</p>
       <code type="none">
 intersection(L1,L2) -> filter(fun(X) -> member(X,L1) end, L2).</code>
@@ -378,9 +377,9 @@ intersection(L1,L2) -> filter(fun(X) -> member(X,L1) end, L2).</code>
 
     <section>
       <title>takewhile</title>
-      <codeinclude file="funs1.erl" tag="%5" type="erl"></codeinclude>
       <p><c>takewhile(P, L)</c> takes elements <c>X</c> from a list
-        <c>L</c> as long as the predicate <c>P(X)</c> is true.</p>
+        <c>L</c> as long as the predicate <c>P(X)</c> is true:</p>
+      <codeinclude file="funs1.erl" tag="%5" type="erl"></codeinclude>
       <pre>
 > <input>lists:takewhile(Big, [200,500,45,5,3,45,6]).</input>  
 [200,500,45]</pre>
@@ -388,8 +387,8 @@ intersection(L1,L2) -> filter(fun(X) -> member(X,L1) end, L2).</code>
 
     <section>
       <title>dropwhile</title>
+      <p><c>dropwhile</c> is the complement of <c>takewhile</c>:</p>
       <codeinclude file="funs1.erl" tag="%6" type="erl"></codeinclude>
-      <p><c>dropwhile</c> is the complement of <c>takewhile</c>.</p>
       <pre>
 > <input>lists:dropwhile(Big, [200,500,45,5,3,45,6]).</input>
 [5,3,45,6]</pre>
@@ -397,10 +396,10 @@ intersection(L1,L2) -> filter(fun(X) -> member(X,L1) end, L2).</code>
 
     <section>
       <title>splitwith</title>
-      <codeinclude file="funs1.erl" tag="%7" type="erl"></codeinclude>
       <p><c>splitwith(P, L)</c> splits the list <c>L</c> into the two
-        sub-lists <c>{L1, L2}</c>, where <c>L = takewhile(P, L)</c>
-        and <c>L2 = dropwhile(P, L)</c>.</p>
+        sublists <c>{L1, L2}</c>, where <c>L = takewhile(P, L)</c>
+        and <c>L2 = dropwhile(P, L)</c>:</p>
+      <codeinclude file="funs1.erl" tag="%7" type="erl"></codeinclude>
       <pre>
 > <input>lists:splitwith(Big, [200,500,45,5,3,45,6]).</input>
 {[200,500,45],[5,3,45,6]}</pre>
@@ -408,17 +407,17 @@ intersection(L1,L2) -> filter(fun(X) -> member(X,L1) end, L2).</code>
   </section>
 
   <section>
-    <title>Funs Which Return Funs</title>
-    <p>So far, this section has only described functions which take
-      funs as arguments. It is also possible to write more powerful
-      functions which themselves return funs. The following examples
-      illustrate these type of functions.</p>
+    <title>Funs Returning Funs</title>
+    <p>So far, only functions that take
+      funs as arguments have been described. More powerful
+      functions, that themselves return funs, can also be written. The following
+      examples illustrate these type of functions.</p>
 
     <section>
       <title>Simple Higher Order Functions</title>
-      <p><c>Adder(X)</c> is a function which, given <c>X</c>, returns
+      <p><c>Adder(X)</c> is a function that given <c>X</c>, returns
         a new function <c>G</c> such that <c>G(K)</c> returns
-        <c>K + X</c>.</p>
+        <c>K + X</c>:</p>
       <pre>
 > <input>Adder = fun(X) -> fun(Y) -> X + Y end end.</input>
 #Fun&lt;erl_eval.6.72228031&gt;
@@ -438,7 +437,7 @@ ints_from(N) ->
     fun() ->
             [N|ints_from(N+1)]
     end.</code>
-      <p>Then we can proceed as follows:</p>
+      <p>Then proceed as follows:</p>
       <pre>
 > <input>XX = lazy:ints_from(1).</input>
 #Fun&lt;lazy.0.29874839&gt;
@@ -450,7 +449,7 @@ ints_from(N) ->
 #Fun&lt;lazy.0.29874839&gt;
 > <input>hd(Y()).</input>
 2</pre>
-      <p>etc. - this is an example of "lazy embedding".</p>
+      <p>And so on. This is an example of "lazy embedding".</p>
     </section>
 
     <section>
@@ -459,17 +458,21 @@ ints_from(N) ->
       <pre>
 Parser(Toks) -> {ok, Tree, Toks1} | fail</pre>
       <p><c>Toks</c> is the list of tokens to be parsed. A successful
-        parse returns <c>{ok, Tree, Toks1}</c>, where <c>Tree</c> is a
-        parse tree and <c>Toks1</c> is a tail of <c>Tree</c> which
-        contains symbols encountered after the structure which was
-        correctly parsed. Otherwise <c>fail</c> is returned.</p>
-      <p>The example which follows illustrates a simple, functional
-        parser which parses the grammar:</p>
+        parse returns <c>{ok, Tree, Toks1}</c>.</p>
+	<list type="bulleted">
+       <item><c>Tree</c> is a parse tree.</item>
+       <item><c>Toks1</c> is a tail of <c>Tree</c> that
+        contains symbols encountered after the structure that was
+        correctly parsed.</item>
+     </list>
+      <p>An unsuccessful parse returns <c>fail</c>.</p>
+      <p>The following example illustrates a simple, functional
+        parser that parses the grammar:</p>
       <pre>
 (a | b) &amp; (c | d)</pre>
       <p>The following code defines a function <c>pconst(X)</c> in
-        the module <c>funparse</c>, which returns a fun which parses a
-        list of tokens.</p>
+        the module <c>funparse</c>, which returns a fun that parses a
+        list of tokens:</p>
       <codeinclude file="funparse.erl" tag="%14" type="erl"></codeinclude>
       <p>This function can be used as follows:</p>
       <pre>
@@ -479,17 +482,18 @@ Parser(Toks) -> {ok, Tree, Toks1} | fail</pre>
 {ok,{const,a},[b,c]}
 > <input>P1([x,y,z]).</input>     
 fail</pre>
-      <p>Next, we define the two higher order functions <c>pand</c>
-        and <c>por</c> which combine primitive parsers to produce more
-        complex parsers. Firstly <c>pand</c>:</p>
+      <p>Next, the two higher order functions <c>pand</c>
+        and <c>por</c> are defined. They combine primitive parsers to produce more
+        complex parsers.</p>
+	<p>First <c>pand</c>:</p>
       <codeinclude file="funparse.erl" tag="%16" type="erl"></codeinclude>
       <p>Given a parser <c>P1</c> for grammar <c>G1</c>, and a parser
         <c>P2</c> for grammar <c>G2</c>, <c>pand(P1, P2)</c> returns a
-        parser for the grammar which consists of sequences of tokens
-        which satisfy <c>G1</c> followed by sequences of tokens which
+        parser for the grammar, which consists of sequences of tokens
+        that satisfy <c>G1</c>, followed by sequences of tokens that
         satisfy <c>G2</c>.</p>
       <p><c>por(P1, P2)</c> returns a parser for the language
-        described by the grammar <c>G1</c> or <c>G2</c>.</p>
+        described by the grammar <c>G1</c> or <c>G2</c>:</p>
       <codeinclude file="funparse.erl" tag="%15" type="erl"></codeinclude>
       <p>The original problem was to parse the grammar
         <c><![CDATA[(a | b) & (c | d)]]></c>. The following code addresses this
@@ -497,7 +501,7 @@ fail</pre>
       <codeinclude file="funparse.erl" tag="%13" type="erl"></codeinclude>
       <p>The following code adds a parser interface to the grammar:</p>
       <codeinclude file="funparse.erl" tag="%12" type="erl"></codeinclude>
-      <p>We can test this parser as follows:</p>
+      <p>The parser can be tested as follows:</p>
       <pre>
 > <input>funparse:parse([a,c]).</input>
 {ok,{'and',{'or',1,{const,a}},{'or',1,{const,c}}}}
diff --git a/system/doc/programming_examples/list_comprehensions.xml b/system/doc/programming_examples/list_comprehensions.xml
index d6c8a66e13..5b33b14dea 100644
--- a/system/doc/programming_examples/list_comprehensions.xml
+++ b/system/doc/programming_examples/list_comprehensions.xml
@@ -31,18 +31,15 @@
 
   <section>
     <title>Simple Examples</title>
-    <p>We start with a simple example:</p>
+    <p>This section starts with a simple example, showing a generator and a filter:</p>
     <pre>
 > <input>[X || X &lt;- [1,2,a,3,4,b,5,6], X > 3].</input>
 [a,4,b,5,6]</pre>
-    <p>This should be read as follows:</p>
-    <quote>
-      <p>The list of X such that X is taken from the list
+    <p>This is read as follows: The list of X such that X is taken from the list
         <c>[1,2,a,...]</c> and X is greater than 3.</p>
-    </quote>
     <p>The notation <c><![CDATA[X <- [1,2,a,...]]]></c> is a generator and
       the expression <c>X > 3</c> is a filter.</p>
-    <p>An additional filter can be added in order to restrict
+    <p>An additional filter, <c>integer(X)</c>, can be added to restrict
       the result to integers:</p>
     <pre>
 > <input>[X || X &lt;- [1,2,a,3,4,b,5,6], integer(X), X > 3].</input>
@@ -56,7 +53,7 @@
 
   <section>
     <title>Quick Sort</title>
-    <p>The well known quick sort routine can be written as follows:</p>
+    <p>The well-known quick sort routine can be written as follows:</p>
     <code type="none"><![CDATA[
 sort([Pivot|T]) ->
     sort([ X || X <- T, X < Pivot]) ++
@@ -64,15 +61,20 @@ sort([Pivot|T]) ->
     sort([ X || X <- T, X >= Pivot]);
 sort([]) -> [].]]></code>
     <p>The expression <c><![CDATA[[X || X <- T, X < Pivot]]]></c> is the list of
-      all elements in <c>T</c>, which are less than <c>Pivot</c>.</p>
+      all elements in <c>T</c> that are less than <c>Pivot</c>.</p>
     <p><c><![CDATA[[X || X <- T, X >= Pivot]]]></c> is the list of all elements in
-      <c>T</c>, which are greater or equal to <c>Pivot</c>.</p>
-    <p>To sort a list, we isolate the first element in the list and
-      split the list into two sub-lists. The first sub-list contains
-      all elements which are smaller than the first element in
-      the list, the second contains all elements which are greater
-      than or equal to the first element in the list. We then sort
-      the sub-lists and combine the results.</p>
+      <c>T</c> that are greater than or equal to <c>Pivot</c>.</p>
+      <p>A list sorted as follows:</p>
+      <list type="bulleted">
+       <item>The first element in the list is isolated
+       and the list is split into two sublists.</item>
+       <item>The first sublist contains
+      all elements that are smaller than the first element in
+      the list.</item>
+      <item>The second sublist contains all elements that are greater
+      than, or equal to, the first element in the list.</item>
+       <item>Then the sublists are sorted and the results are combined.</item>
+     </list>
   </section>
 
   <section>
@@ -82,10 +84,10 @@ sort([]) -> [].]]></code>
     <code type="none"><![CDATA[
 perms([]) -> [[]];
 perms(L)  -> [[H|T] || H <- L, T <- perms(L--[H])].]]></code>
-    <p>We take take <c>H</c> from <c>L</c> in all possible ways.
+    <p>This takes <c>H</c> from <c>L</c> in all possible ways.
       The result is the set of all lists <c>[H|T]</c>, where <c>T</c>
-      is the set of all possible permutations of <c>L</c> with
-      <c>H</c> removed.</p>
+      is the set of all possible permutations of <c>L</c>, with
+      <c>H</c> removed:</p>
     <pre>
 > <input>perms([b,u,g]).</input>
 [[b,u,g],[b,g,u],[u,b,g],[u,g,b],[g,b,u],[g,u,b]]</pre>
@@ -97,7 +99,7 @@ perms(L)  -> [[H|T] || H <- L, T <- perms(L--[H])].]]></code>
       that <c>A**2 + B**2 = C**2</c>.</p>
     <p>The function <c>pyth(N)</c> generates a list of all integers
       <c>{A,B,C}</c> such that <c>A**2 + B**2 = C**2</c> and where
-      the sum of the sides is equal to or less than <c>N</c>.</p>
+      the sum of the sides is equal to, or less than, <c>N</c>:</p>
     <code type="none"><![CDATA[
 pyth(N) ->
     [ {A,B,C} ||
@@ -140,7 +142,7 @@ pyth1(N) ->
   </section>
 
   <section>
-    <title>Simplifications with List Comprehensions</title>
+    <title>Simplifications With List Comprehensions</title>
     <p>As an example, list comprehensions can be used to simplify some
       of the functions in <c>lists.erl</c>:</p>
     <code type="none"><![CDATA[
@@ -151,45 +153,47 @@ filter(Pred, L) -> [X || X <- L, Pred(X)].]]></code>
 
   <section>
     <title>Variable Bindings in List Comprehensions</title>
-    <p>The scope rules for variables which occur in list
+    <p>The scope rules for variables that occur in list
       comprehensions are as follows:</p>
     <list type="bulleted">
-      <item>all variables which occur in a generator pattern are
-       assumed to be "fresh" variables</item>
-      <item>any variables which are defined before the list
-       comprehension and which are used in filters have the values
-       they had before the list comprehension</item>
-      <item>no variables may be exported from a list comprehension.</item>
+      <item>All variables that occur in a generator pattern are
+       assumed to be "fresh" variables.</item>
+      <item>Any variables that are defined before the list
+       comprehension, and that are used in filters, have the values
+       they had before the list comprehension.</item>
+      <item>Variables cannot be exported from a list comprehension.</item>
     </list>
-    <p>As an example of these rules, suppose we want to write
+    <p>As an example of these rules, suppose you want to write
       the function <c>select</c>, which selects certain elements from
-      a list of tuples. We might write
+      a list of tuples. Suppose you write
       <c><![CDATA[select(X, L) ->  [Y || {X, Y} <- L].]]></c> with the intention
-      of extracting all tuples from <c>L</c> where the first item is
+      of extracting all tuples from <c>L</c>, where the first item is
       <c>X</c>.</p>
-    <p>Compiling this yields the following diagnostic:</p>
+    <p>Compiling this gives the following diagnostic:</p>
     <code type="none">
 ./FileName.erl:Line: Warning: variable 'X' shadowed in generate</code>
-    <p>This diagnostic warns us that the variable <c>X</c> in
-      the pattern is not the same variable as the variable <c>X</c>
-      which occurs in the function head.</p>
-    <p>Evaluating <c>select</c> yields the following result:</p>
+    <p>This diagnostic warns that the variable <c>X</c> in
+      the pattern is not the same as the variable <c>X</c>
+      that occurs in the function head.</p>
+    <p>Evaluating <c>select</c> gives the following result:</p>
     <pre>
 > <input>select(b,[{a,1},{b,2},{c,3},{b,7}]).</input>
 [1,2,3,7]</pre>
-    <p>This result is not what we wanted. To achieve the desired
-      effect we must write <c>select</c> as follows:</p>
+    <p>This is not the wanted result. To achieve the desired
+      effect, <c>select</c> must be written as follows:</p>
     <code type="none"><![CDATA[
 select(X, L) ->  [Y || {X1, Y} <- L, X == X1].]]></code>
     <p>The generator now contains unbound variables and the test has
-      been moved into the filter. This now works as expected:</p>
+      been moved into the filter.</p>
+      <p>This now works as expected:</p>
     <pre>
 > <input>select(b,[{a,1},{b,2},{c,3},{b,7}]).</input>
 [2,7]</pre>
-    <p>One consequence of the rules for importing variables into a
+    <p>A consequence of the rules for importing variables into a
       list comprehensions is that certain pattern matching operations
-      have to be moved into the filters and cannot be written directly
-      in the generators. To illustrate this, do not write as follows:</p>
+      must be moved into the filters and cannot be written directly
+      in the generators.</p>
+      <p>To illustrate this, do <em>not</em> write as follows:</p>
     <code type="none"><![CDATA[
 f(...) ->
     Y = ...
diff --git a/system/doc/programming_examples/part.xml b/system/doc/programming_examples/part.xml
index 0bec9b4cf5..9329717ce4 100644
--- a/system/doc/programming_examples/part.xml
+++ b/system/doc/programming_examples/part.xml
@@ -28,8 +28,9 @@
     <rev></rev>
   </header>
   <description>
-    <p>This chapter contains examples on using records, funs, list
-      comprehensions and the bit syntax.</p>
+ <marker id="programming examples"></marker>
+    <p>This section contains examples on using records, funs, list
+      comprehensions, and the bit syntax.</p>
   </description>
   <xi:include href="records.xml"/>
   <xi:include href="funs.xml"/>
diff --git a/system/doc/programming_examples/records.xml b/system/doc/programming_examples/records.xml
index 58cf136a0b..ffcc05e758 100644
--- a/system/doc/programming_examples/records.xml
+++ b/system/doc/programming_examples/records.xml
@@ -30,37 +30,39 @@
   </header>
 
   <section>
-    <title>Records vs Tuples</title>
-    <p>The main advantage of using records instead of tuples is that
+    <title>Records and Tuples</title>
+    <p>The main advantage of using records rather than tuples is that
       fields in a record are accessed by name, whereas fields in a
       tuple are accessed by position. To illustrate these differences,
-      suppose that we want to represent a person with the tuple
+      suppose that you want to represent a person with the tuple
       <c>{Name, Address, Phone}</c>.</p>
-    <p>We must remember that the <c>Name</c> field is the first
-      element of the tuple, the <c>Address</c> field is the second
-      element, and so on, in order to write functions which manipulate
-      this data. For example, to extract data from a variable <c>P</c>
-      which contains such a tuple we might write the following code
-      and then use pattern matching to extract the relevant fields.</p>
+      <p>To write functions that manipulate this data, remember the following:</p>
+      <list type="bulleted">
+       <item>The <c>Name</c> field is the first element of the tuple.</item>
+       <item>The <c>Address</c> field is the second element.</item>
+       <item>The <c>Phone</c> field is the third element.</item>
+     </list>
+    <p>For example, to extract data from a variable <c>P</c>
+      that contains such a tuple, you can write the following code
+      and then use pattern matching to extract the relevant fields:</p>
     <code type="none">
 Name = element(1, P),
 Address = element(2, P),
 ...</code>
-    <p>Code like this is difficult to read and understand and errors
-      occur if we get the numbering of the elements in the tuple wrong.
-      If we change the data representation by re-ordering the fields,
-      or by adding or removing a field, then all references to
-      the person tuple, wherever they occur, must be checked and
-      possibly modified.</p>
-    <p>Records allow us to refer to the fields by name and not
-      position. We use a record instead of a tuple to store the data.
-      If we write a record definition of the type shown below, we can
-      then refer to the fields of the record by name.</p>
+    <p>Such code is difficult to read and understand, and errors
+      occur if the numbering of the elements in the tuple is wrong.
+      If the data representation of the fields is changed, by re-ordering,
+      adding, or removing fields, all references to
+      the person tuple must be checked and possibly modified.</p>
+    <p>Records allow references to the fields by name, instead of by
+      position. In the following example, a record instead of a tuple
+      is used to store the data:</p>
     <code type="none">
 -record(person, {name, phone, address}).</code>
-    <p>For example, if <c>P</c> is now a variable whose value is a
-      <c>person</c> record, we can code as follows in order to access
-      the name and address fields of the records.</p>
+    <p>This enables references to the fields of the record by name.
+    For example, if <c>P</c> is a variable whose value is a
+      <c>person</c> record, the following code access
+      the name and address fields of the records:</p>
     <code type="none">
 Name = P#person.name,
 Address = P#person.address,
@@ -72,24 +74,25 @@ Address = P#person.address,
 
   <section>
     <title>Defining a Record</title>
-    <p>This definition of a person will be used in many of
-      the examples which follow. It contains three fields, <c>name</c>,
-      <c>phone</c> and <c>address</c>. The default values for
+    <p>This following definition of a <c>person</c> is used in several
+      examples in this section. Three fields are included, <c>name</c>,
+      <c>phone</c>, and <c>address</c>. The default values for
       <c>name</c> and <c>phone</c> is "" and [], respectively.
       The default value for <c>address</c> is the atom
       <c>undefined</c>, since no default value is supplied for this
       field:</p>
     <pre>
 -record(person, {name = "", phone = [], address}).</pre>
-    <p>We have to define the record in the shell in order to be able
-      use the record syntax in the examples:</p>
+    <p>The record must be defined in the shell to enable
+      use of the record syntax in the examples:</p>
     <pre>
 > <input>rd(person, {name = "", phone = [], address}).</input>
 person</pre>
-    <p>This is due to the fact that record definitions are available
-      at compile time only, not at runtime. See <c>shell(3)</c> for
-      details on records in the shell.
-      </p>
+    <p>This is because record definitions are only available
+      at compile time, not at runtime. For details on records
+      in the shell, see the
+      <seealso marker="stdlib:shell">shell(3)</seealso>
+      manual page in <c>stdlib</c>.</p>
   </section>
 
   <section>
@@ -98,12 +101,12 @@ person</pre>
     <pre>
 > <input>#person{phone=[0,8,2,3,4,3,1,2], name="Robert"}.</input>
 #person{name = "Robert",phone = [0,8,2,3,4,3,1,2],address = undefined}</pre>
-    <p>Since the <c>address</c> field was omitted, its default value
+    <p>As the <c>address</c> field was omitted, its default value
       is used.</p>
-    <p>There is a new feature introduced in Erlang 5.1/OTP R8B,
-      with which you can set a value to all fields in a record,
-      overriding the defaults in the record specification. The special
-      field <c>_</c>, means "all fields not explicitly specified".</p>
+      <p>From Erlang 5.1/OTP R8B, a value to all
+      fields in a record can be set with the special field <c>_</c>.
+      <c>_</c> means "all fields not explicitly specified".</p>
+      <p><em>Example:</em></p>
     <pre>
 > <input>#person{name = "Jakob", _ = '_'}.</input>
 #person{name = "Jakob",phone = '_',address = '_'}</pre>
@@ -114,6 +117,7 @@ person</pre>
 
   <section>
     <title>Accessing a Record Field</title>
+    <p>The following example shows how to access a record field:</p>
     <pre>
 > <input>P = #person{name = "Joe", phone = [0,8,2,3,4,3,1,2]}.</input>
 #person{name = "Joe",phone = [0,8,2,3,4,3,1,2],address = undefined}
@@ -123,6 +127,7 @@ person</pre>
 
   <section>
     <title>Updating a Record</title>
+    <p>The following example shows how to update a record:</p>
     <pre>
 > <input>P1 = #person{name="Joe", phone=[1,2,3], address="A street"}.</input>
 #person{name = "Joe",phone = [1,2,3],address = "A street"}
@@ -133,7 +138,7 @@ person</pre>
   <section>
     <title>Type Testing</title>
     <p>The following example shows that the guard succeeds if
-      <c>P</c> is record of type <c>person</c>.</p>
+      <c>P</c> is record of type <c>person</c>:</p>
     <pre>
 foo(P) when is_record(P, person) -> a_person;
 foo(_) -> not_a_person.</pre>
@@ -141,7 +146,7 @@ foo(_) -> not_a_person.</pre>
 
   <section>
     <title>Pattern Matching</title>
-    <p>Matching can be used in combination with records as shown in
+    <p>Matching can be used in combination with records, as shown in
       the following example:</p>
     <pre>
 > <input>P3 = #person{name="Joe", phone=[0,0,7], address="A street"}.</input>
@@ -163,7 +168,7 @@ find_phone([], Name) ->
 
   <section>
     <title>Nested Records</title>
-    <p>The value of a field in a record might be an instance of a
+    <p>The value of a field in a record can be an instance of a
       record. Retrieval of nested data can be done stepwise, or in a
       single step, as shown in the following example:</p>
     <pre>
@@ -173,11 +178,12 @@ find_phone([], Name) ->
 demo() ->
   P = #person{name= #name{first="Robert",last="Virding"}, phone=123},
   First = (P#person.name)#name.first.</pre>
-    <p>In this example, <c>demo()</c> evaluates to <c>"Robert"</c>.</p>
+    <p>Here, <c>demo()</c> evaluates to <c>"Robert"</c>.</p>
   </section>
 
   <section>
-    <title>Example</title>
+    <title>A Longer Example</title>
+    <p>Comments are embedded in the following example:</p>
     <pre>
 %% File: person.hrl
 
diff --git a/system/doc/reference_manual/character_set.xml b/system/doc/reference_manual/character_set.xml
index b09b484582..d6989373bf 100644
--- a/system/doc/reference_manual/character_set.xml
+++ b/system/doc/reference_manual/character_set.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2014</year><year>2014</year>
+      <year>2014</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -31,7 +31,7 @@
 
   <section>
     <title>Character Set</title>
-    <p>In Erlang 4.8/OTP R5A the syntax of Erlang tokens was extended to
+    <p>Since Erlang 4.8/OTP R5A, the syntax of Erlang tokens is extended to
       allow the use of the full ISO-8859-1 (Latin-1) character set. This
       is noticeable in the following ways:</p>
     <list type="bulleted">
@@ -98,7 +98,7 @@
         <cell align="center" valign="middle">&oslash; - &yuml;</cell>
         <cell align="left" valign="middle">Lowercase letters</cell>
       </row>
-      <tcaption>Character Classes.</tcaption>
+      <tcaption>Character Classes</tcaption>
     </table>
     <p>In Erlang/OTP R16B the syntax of Erlang tokens was extended to
        handle Unicode. The support is limited to
@@ -111,13 +111,13 @@
   </section>
   <section>
     <title>Source File Encoding</title>
-    <p>The Erlang source file <marker
-      id="encoding">encoding</marker> is selected by a
+    <marker id="encoding"></marker>
+    <p>The Erlang source file <c>encoding</c> is selected by a
       comment in one of the first two lines of the source file. The
       first string that matches the regular expression
       <c>coding\s*[:=]\s*([-a-zA-Z0-9])+</c> selects the encoding. If
-      the matching string is not a valid encoding it is ignored. The
-      valid encodings are <c>Latin-1</c> and <c>UTF-8</c> where the
+      the matching string is an invalid encoding, it is ignored. The
+      valid encodings are <c>Latin-1</c> and <c>UTF-8</c>, where the
       case of the characters can be chosen freely.</p>
     <p>The following example selects UTF-8 as default encoding:</p>
       <pre>
@@ -127,7 +127,7 @@
 %% For this file we have chosen encoding = Latin-1</pre>
       <pre>
 %% -*- coding: latin-1 -*-</pre>
-    <p>The default encoding for Erlang source files was changed from
-      Latin-1 to UTF-8 in Erlang OTP 17.0.</p>
+    <p>The default encoding for Erlang source files is changed from
+      Latin-1 to UTF-8 since Erlang/OTP 17.0.</p>
   </section>
 </chapter>
diff --git a/system/doc/reference_manual/code_loading.xml b/system/doc/reference_manual/code_loading.xml
index b5b5704df5..48ec32d6df 100644
--- a/system/doc/reference_manual/code_loading.xml
+++ b/system/doc/reference_manual/code_loading.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2003</year><year>2014</year>
+      <year>2003</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -29,35 +29,39 @@
     <file>code_loading.xml</file>
   </header>
   <p>How code is compiled and loaded is not a language issue, but
-    is system dependent. This chapter describes compilation and
-    code loading in Erlang/OTP with pointers to relevant parts of
+    is system-dependent. This section describes compilation and
+    code loading in Erlang/OTP with references to relevant parts of
     the documentation.</p>
 
   <section>
     <title>Compilation</title>
     <p>Erlang programs must be <em>compiled</em> to object code.
-      The compiler can generate a new file which contains the object
-      code. The current abstract machine which runs the object code is
+      The compiler can generate a new file that contains the object
+      code. The current abstract machine, which runs the object code, is
       called BEAM, therefore the object files get the suffix
       <c>.beam</c>. The compiler can also generate a binary which can
       be loaded directly.</p>
-    <p>The compiler is located in the Kernel module <c>compile</c>, see
-      <c>compile(3)</c>.</p>
+    <p>The compiler is located in the module <c>compile</c> (see the
+      <seealso marker="compiler:compile">compile(3)</seealso> manual page in
+      Compiler).</p>
     <pre>
 compile:file(Module)
 compile:file(Module, Options)</pre>
     <p>The Erlang shell understands the command <c>c(Module)</c> which
       both compiles and loads <c>Module</c>.</p>
-    <p>There is also a module <c>make</c> which provides a set of
-      functions similar to the UNIX type Make functions, see
-      <c>make(3)</c>.</p>
-    <p>The compiler can also be accessed from the OS prompt, see
-      <c>erl(1)</c>.</p>
+    <p>There is also a module <c>make</c>, which provides a set of
+      functions similar to the UNIX type Make functions, see the
+      <seealso marker="tools:make">make(3)</seealso>
+      manual page in Tools.</p>
+    <p>The compiler can also be accessed from the OS prompt, see the
+      <seealso marker="erts:erl">erl(1)</seealso> manual page in ERTS.</p>
     <pre>
 % erl -compile <input>Module1</input>...<input>ModuleN</input>
 % erl -make</pre>
     <p>The <c>erlc</c> program provides an even better way to compile
-      modules from the shell, see <c>erlc(1)</c>. It understands a
+      modules from the shell, see the
+      <seealso marker="erts:erlc">erlc(1)</seealso> manual page in ERTS.
+      It understands a
       number of flags that can be used to define macros, add search
       paths for include files, and more.</p>
     <pre>
@@ -68,13 +72,17 @@ compile:file(Module, Options)</pre>
     <marker id="loading"></marker>
     <title>Code Loading</title>
     <p>The object code must be <em>loaded</em> into the Erlang runtime
-      system. This is handled by the <em>code server</em>, see
-      <c>code(3)</c>.</p>
-    <p>The code server loads code according to a code loading strategy
+      system. This is handled by the <em>code server</em>, see the
+      <seealso marker="kernel:code">code(3)</seealso>
+      manual page in Kernel.</p>
+    <p>The code server loads code according to a code loading strategy,
       which is either <em>interactive</em> (default) or
-      <em>embedded</em>. In interactive mode, code are searched for in
+      <em>embedded</em>. In interactive mode, code is searched for in
       a <em>code path</em> and loaded when first referenced. In
-      embedded mode, code is loaded at start-up according to a <em>boot script</em>. This is described in <em>System Principles</em>.</p>
+      embedded mode, code is loaded at start-up according to a
+      <em>boot script</em>. This is described in
+      <seealso marker="doc/system_principles:system_principles#code_loading">
+      System Principles </seealso>.</p>
   </section>
 
   <section>
@@ -86,16 +94,17 @@ compile:file(Module, Options)</pre>
       the system for the first time, the code becomes 'current'. If then
       a new instance of the module is loaded, the code of the previous
       instance becomes 'old' and the new instance becomes 'current'.</p>
-    <p>Both old and current code is valid, and may be evaluated
+    <p>Both old and current code is valid, and can be evaluated
       concurrently. Fully qualified function calls always refer to
-      current code. Old code may still be evaluated because of processes
+      current code. Old code can still be evaluated because of processes
       lingering in the old code.</p>
-    <p>If a third instance of the module is loaded, the code server will
-      remove (purge) the old code and any processes lingering in it will
-      be terminated. Then the third instance becomes 'current' and
+    <p>If a third instance of the module is loaded, the code server
+      removes (purges) the old code and any processes lingering in it is
+      terminated. Then the third instance becomes 'current' and
       the previously current code becomes 'old'.</p>
     <p>To change from old code to current code, a process must make a
-      fully qualified function call. Example:</p>
+      fully qualified function call.</p>
+      <p><em>Example:</em></p>
     <pre>
 -module(m).
 -export([loop/0]).
@@ -109,60 +118,62 @@ loop() ->
             loop()
     end.</pre>
     <p>To make the process change code, send the message
-      <c>code_switch</c> to it. The process then will make a fully
-      qualified call to <c>m:loop()</c> and change to current code.
-      Note that <c>m:loop/0</c> must be exported.</p>
-    <p>For code replacement of funs to work, the syntax
-      <c>fun Module:FunctionName/Arity</c> should be used.</p>
+      <c>code_switch</c> to it. The process then makes a fully
+      qualified call to <c>m:loop()</c> and changes to current code.
+      Notice that <c>m:loop/0</c> must be exported.</p>
+    <p>For code replacement of funs to work, use the syntax
+      <c>fun Module:FunctionName/Arity</c>.</p>
   </section>
 
   <section>
     <marker id="on_load"></marker>
-    <title>Running a function when a module is loaded</title>
+    <title>Running a Function When a Module is Loaded</title>
 
     <warning>
-    <p>The <c>on_load</c> feature should be considered experimental
-    as there are a number of known weak points in current semantics
-    which therefore might also change in future releases:</p>
+    <p>The <c>on_load</c> feature is to be considered experimental
+    as there are a number of known weak points in current semantics,
+    which therefore might change in future Erlang/OTP releases:</p>
     <list>
-      <item><p>Doing external call in on_load to the module itself
+      <item><p>Doing external call in <c>on_load</c> to the module itself
       leads to deadlock.</p></item>
       <item><p>At module upgrade, other processes calling the module
-      get suspended waiting for on_load to finish. This can be very bad
+      get suspended waiting for <c>on_load</c> to finish. This can be very bad
       for applications with demands on realtime characteristics.</p></item>
-      <item><p>At module upgrade, no rollback is done if the on_load function fails.
-      The system will be left in a bad limbo state without any working
+      <item><p>At module upgrade, no rollback is done if the
+      <c>on_load</c> function fails.
+      The system is left in a bad limbo state without any working
       and reachable instance of the module.</p></item>
     </list>
-    <p>The problems with module upgrade described above could be fixed in future
-    releases by changing the behaviour to not make the module reachable until
-    after the on_load function has successfully returned.</p>
+    <p>The problems with module upgrade described above can be fixed in future
+    Erlang/OTP releases by changing the behaviour to not make the module reachable until
+    after the <c>on_load</c> function has successfully returned.</p>
     </warning>
 
-    <p>The <c>-on_load()</c> directive names a function that should
-    be run automatically when a module a loaded. Its syntax is:</p>
+    <p>The <c>-on_load()</c> directive names a function that is to
+    be run automatically when a module is loaded.</p>
+    <p>Its syntax is as follows:</p>
 
 <pre>
 -on_load(Name/0).</pre>
 
-    <p>It is not necessary to export the function. It will be called in a
-    freshly spawned process (which will be terminated as soon as the function
+    <p>It is not necessary to export the function. It is called in a
+    freshly spawned process (which terminates as soon as the function
     returns). The function must return <c>ok</c> if the module is to
-    be remained loaded and become callable, or any other value if the module
-    is to be unloaded. Generating an exception will also cause the
+    remain loaded and become callable, or any other value if the module
+    is to be unloaded. Generating an exception also causes the
     module to be unloaded. If the return value is not an atom,
-    a warning error report will be sent to the error logger.</p>
+    a warning error report is sent to the error logger.</p>
 
     <p>A process that calls any function in a module whose <c>on_load</c>
-    function has not yet returned will be suspended until the <c>on_load</c>
+    function has not yet returned, is suspended until the <c>on_load</c>
     function has returned.</p>
 
-    <p>In embedded mode, all modules will be loaded first and then
-      will all on_load functions be called. The system will be
-      terminated unless all of the on_load functions return
+    <p>In embedded mode, first all modules are loaded.
+      Then all <c>on_load</c> functions are called. The system is
+      terminated unless all of the <c>on_load</c> functions return
       <c>ok</c></p>.
 
-    <p>Example:</p>
+    <p><em>Example:</em></p>
 
     <pre>
 -module(m).
@@ -174,7 +185,7 @@ load_my_nifs() ->
     erlang:load_nif(NifPath, Info).</pre>
 
     <p>If the call to <c>erlang:load_nif/2</c> fails, the module
-      will be unloaded and there will be warning report sent to
+      is unloaded and a  warning report is sent to
       the error loader.</p>
 
   </section>
diff --git a/system/doc/reference_manual/data_types.xml b/system/doc/reference_manual/data_types.xml
index ad92143179..6226fa2f31 100644
--- a/system/doc/reference_manual/data_types.xml
+++ b/system/doc/reference_manual/data_types.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2003</year><year>2013</year>
+      <year>2003</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -28,12 +28,12 @@
     <rev></rev>
     <file>data_types.xml</file>
   </header>
+    <p>Erlang provides a number of data types, which are listed in
+      this section.</p>
 
   <section>
     <title>Terms</title>
-    <p>Erlang provides a number of data types which are listed in this
-      chapter. A piece of data of any data type is called a
-      <em>term</em>.</p>
+    <p>A piece of data of any data type is called a <em>term</em>.</p>
   </section>
 
   <section>
@@ -48,13 +48,13 @@
        <em><c>char</c></em>.</item>
       <item><em><c>base</c></em><c>#</c><em><c>value</c></em>      <br></br>
 
-       Integer with the base <em><c>base</c></em>, which must be an
+       Integer with the base <em><c>base</c></em>, that must be an
        integer in the range 2..36.      <br></br>
 
        In Erlang 5.2/OTP R9B and earlier versions, the allowed range
        is 2..16.</item>
     </list>
-    <p>Examples:</p>
+    <p><em>Examples:</em></p>
     <pre>
 1> <input>42.</input>
 42
@@ -76,11 +76,11 @@
 
   <section>
     <title>Atom</title>
-    <p>An atom is a literal, a constant with name. An atom should be
+    <p>An atom is a literal, a constant with name. An atom is to be
       enclosed in single quotes (') if it does not begin with a
       lower-case letter or if it contains other characters than
       alphanumeric characters, underscore (_), or @.</p>
-    <p>Examples:</p>
+    <p><em>Examples:</em></p>
     <pre>
 hello
 phone_number
@@ -91,11 +91,11 @@ phone_number
   <section>
     <title>Bit Strings and Binaries</title>
     <p>A bit string is used to store an area of untyped memory.</p>
-    <p>Bit Strings are expressed using the
+    <p>Bit strings are expressed using the
       <seealso marker="expressions#bit_syntax">bit syntax</seealso>.</p>
-    <p>Bit Strings which consists of a number of bits which is evenly 
-      divisible by eight are called Binaries</p>
-    <p>Examples:</p>
+    <p>Bit strings that consist of a number of bits that are evenly
+      divisible by eight, are called <em>binaries</em></p>
+    <p><em>Examples:</em></p>
     <pre>
 1> <input>&lt;&lt;10,20&gt;&gt;.</input>
 &lt;&lt;10,20>>
@@ -103,12 +103,14 @@ phone_number
 &lt;&lt;"ABC">>
 1> <input>&lt;&lt;1:1,0:1&gt;&gt;.</input>
 &lt;&lt;2:2>></pre>
-    <p>More examples can be found in Programming Examples.</p>
+    <p>For more examples,
+      see <seealso marker="doc/programming_examples:bit_syntax">
+      Programming Examples</seealso>.</p>
   </section>
 
   <section>
     <title>Reference</title>
-    <p>A reference is a term which is unique in an Erlang runtime
+    <p>A reference is a term that is unique in an Erlang runtime
       system, created by calling <c>make_ref/0</c>.</p>
   </section>
 
@@ -117,34 +119,42 @@ phone_number
     <p>A fun is a functional object. Funs make it possible to create
       an anonymous function and pass the function itself -- not its
       name -- as argument to other functions.</p>
-    <p>Example:</p>
+    <p><em>Example:</em></p>
     <pre>
 1> <input>Fun1 = fun (X) -> X+1 end.</input>
 #Fun&lt;erl_eval.6.39074546&gt;
 2> <input>Fun1(2).</input>
 3</pre>
-    <p>Read more about funs in <seealso marker="expressions#funs">Fun Expressions</seealso>. More examples can be found in Programming
-      Examples.</p>
+    <p>Read more about funs in <seealso marker="expressions#funs">
+      Fun Expressions</seealso>. For more examples, see
+      <seealso marker="doc/programming_examples:funs">
+      Programming Examples</seealso>.</p>
   </section>
 
   <section>
     <title>Port Identifier</title>
-    <p>A port identifier identifies an Erlang port. <c>open_port/2</c>,
-      which is used to create ports, will return a value of this type.</p>
+    <p>A port identifier identifies an Erlang port.</p>
+    <p><c>open_port/2</c>, which is used to create ports, returns
+      a value of this data type.</p>
     <p>Read more about ports in <seealso marker="ports">Ports and Port Drivers</seealso>.</p>
   </section>
 
   <section>
     <title>Pid</title>
-    <p>A process identifier, pid, identifies a process.
-      <c>spawn/1,2,3,4</c>, <c>spawn_link/1,2,3,4</c> and
-      <c>spawn_opt/4</c>, which are used to create processes, return
-      values of this type. Example:</p>
+    <p>A process identifier, pid, identifies a process.</p>
+    <p>The following BIFs, which are used to create processes, return
+      values of this data type:</p>
+    <list type="bulleted">
+      <item><c>spawn/1,2,3,4</c></item>
+      <item><c>spawn_link/1,2,3,4</c></item>
+      <item><c>spawn_opt/4</c></item>
+    </list>
+    <p><em>Example:</em></p>
     <pre>
 1> <input>spawn(m, f, []).</input>
 &lt;0.51.0></pre>
-    <p>The BIF <c>self()</c> returns the pid of the calling process.
-      Example:</p>
+    <p>In the following example, the BIF <c>self()</c> returns
+      the pid of the calling process:</p>
     <pre>
 -module(m).
 -export([loop/0]).
@@ -167,14 +177,14 @@ who_are_you</pre>
 
   <section>
     <title>Tuple</title>
-    <p>Compound data type with a fixed number of terms:</p>
+    <p>A tuple is a compound data type with a fixed number of terms:</p>
     <pre>
 {Term1,...,TermN}</pre>
     <p>Each term <c>Term</c> in the tuple is called an
       <em>element</em>. The number of elements is said to be
       the <em>size</em> of the tuple.</p>
     <p>There exists a number of BIFs to manipulate tuples.</p>
-    <p>Examples:</p>
+    <p><em>Examples:</em></p>
     <pre>
 1> <input>P = {adam,24,{july,29}}.</input>
 {adam,24,{july,29}}
@@ -192,7 +202,8 @@ adam
 
   <section>
     <title>Map</title>
-    <p>Compound data type with a variable number of key-value associations:</p>
+    <p>A map is a compound data type with a variable number of
+      key-value associations:</p>
     <pre>
 #{Key1=>Value1,...,KeyN=>ValueN}</pre>
 	<p>Each key-value association in the map is called an
@@ -200,7 +211,7 @@ adam
 		called <em>elements</em>. The number of association pairs is said to be
       the <em>size</em> of the map.</p>
     <p>There exists a number of BIFs to manipulate maps.</p>
-    <p>Examples:</p>
+    <p><em>Examples:</em></p>
     <pre>
 1> <input>M1 = #{name=>adam,age=>24,date=>{july,29}}.</input>
 #{age => 24,date => {july,29},name => adam}
@@ -215,16 +226,18 @@ adam
 6> <input>map_size(#{}).</input>
 0</pre>
     <p>A collection of maps processing functions can be found in
-	the STDLIB module <seealso marker="stdlib:maps"><c>maps</c></seealso>.</p>
-    <p>Read more about <seealso marker="expressions#map_expressions">Maps</seealso>.</p>
+      <seealso marker="stdlib:maps"><c>maps</c></seealso> manual page
+      in STDLIB.</p>
+    <p>Read more about maps in <seealso marker="expressions#map_expressions">
+      Map Expressions</seealso>.</p>
   <note>
-	  <p>Maps are considered experimental during OTP 17.</p>
+    <p>Maps are considered to be experimental during Erlang/OTP R17.</p>
   </note>
   </section>
 
   <section>
     <title>List</title>
-    <p>Compound data type with a variable number of terms.</p>
+    <p>A list is a compound data type with a variable number of terms.</p>
     <pre>
 [Term1,...,TermN]</pre>
     <p>Each term <c>Term</c> in the list is called an
@@ -232,20 +245,21 @@ adam
       the <em>length</em> of the list.</p>
     <p>Formally, a list is either the empty list <c>[]</c> or
       consists of a <em>head</em> (first element) and a <em>tail</em>
-      (remainder of the list) which is also a list. The latter can
+      (remainder of the list).
+      The <em>tail</em> is also a list. The latter can
       be expressed as <c>[H|T]</c>. The notation
-      <c>[Term1,...,TermN]</c> above is actually shorthand for
+      <c>[Term1,...,TermN]</c> above is equivalent with
       the list <c>[Term1|[...|[TermN|[]]]]</c>.</p>
-    <p>Example:      <br></br>
-<c>[]</c> is a list, thus      <br></br>
+    <p><em>Example:</em></p>
+<p><c>[]</c> is a list, thus      <br></br>
 <c>[c|[]]</c> is a list, thus      <br></br>
 <c>[b|[c|[]]]</c> is a list, thus      <br></br>
-<c>[a|[b|[c|[]]]]</c> is a list, or in short <c>[a,b,c]</c>.</p>
-    <p></p>
+<c>[a|[b|[c|[]]]]</c> is a list, or in short <c>[a,b,c]</c></p>
+
     <p>A list where the tail is a list is sometimes called a <em>proper list</em>. It is allowed to have a list where the tail is not a
-      list, for example <c>[a|b]</c>. However, this type of list is of
+      list, for example, <c>[a|b]</c>. However, this type of list is of
       little practical use.</p>
-    <p>Examples:</p>
+    <p><em>Examples:</em></p>
     <pre>
 1> <input>L1 = [a,2,{c,4}].</input>
 [a,2,{c,4}]
@@ -262,18 +276,19 @@ a
 7> <input>length([]).</input>
 0</pre>
     <p>A collection of list processing functions can be found in
-      the STDLIB module <c>lists</c>.</p>
+      the <seealso marker="stdlib:lists">lists</seealso> manual
+      page in STDLIB.</p>
   </section>
 
   <section>
     <title>String</title>
     <p>Strings are enclosed in double quotes ("), but is not a
-      data type in Erlang. Instead a string <c>"hello"</c> is
-      shorthand for the list <c>[$h,$e,$l,$l,$o]</c>, that is
+      data type in Erlang. Instead, a string <c>"hello"</c> is
+      shorthand for the list <c>[$h,$e,$l,$l,$o]</c>, that is,
       <c>[104,101,108,108,111]</c>.</p>
     <p>Two adjacent string literals are concatenated into one. This is
-      done at compile-time and does not incur any runtime overhead.
-      Example:</p>
+      done in the compilation, thus, does not incur any runtime overhead.</p>
+      <p><em>Example:</em></p>
     <pre>
 "string" "42"</pre>
     <p>is equivalent to</p>
@@ -285,12 +300,13 @@ a
     <title>Record</title>
     <p>A record is a data structure for storing a fixed number of
       elements. It has named fields and is similar to a struct in C.
-      However, record is not a true data type. Instead record
+      However, a record is not a true data type. Instead, record
       expressions are translated to tuple expressions during
       compilation. Therefore, record expressions are not understood by
-      the shell unless special actions are taken. See <c>shell(3)</c>
-      for details.</p>
-    <p>Examples:</p>
+      the shell unless special actions are taken. For details, see the
+      <seealso marker="stdlib:shell">shell(3)</seealso> manual
+      page in STDLIB).</p>
+    <p><em>Examples:</em></p>
     <pre>
 -module(person).
 -export([new/2]).
@@ -304,14 +320,15 @@ new(Name, Age) ->
 {person,ernie,44}</pre>
     <p>Read more about records in
       <seealso marker="records">Records</seealso>. More examples can be
-      found in Programming Examples.</p>
+      found in <seealso marker="doc/programming_examples:records">
+      Programming Examples</seealso>.</p>
   </section>
 
   <section>
     <title>Boolean</title>
     <p>There is no Boolean data type in Erlang. Instead the atoms
       <c>true</c> and <c>false</c> are used to denote Boolean values.</p>
-    <p>Examples:</p>
+    <p><em>Examples:</em></p>
     <pre>
 1> <input>2 =&lt; 3</input>.
 true
@@ -330,76 +347,80 @@ true</pre>
       </row>
       <row>
         <cell align="left" valign="middle">\b</cell>
-        <cell align="left" valign="middle">backspace</cell>
+        <cell align="left" valign="middle">Backspace</cell>
       </row>
       <row>
         <cell align="left" valign="middle">\d</cell>
-        <cell align="left" valign="middle">delete</cell>
+        <cell align="left" valign="middle">Delete</cell>
       </row>
       <row>
         <cell align="left" valign="middle">\e</cell>
-        <cell align="left" valign="middle">escape</cell>
+        <cell align="left" valign="middle">Escape</cell>
       </row>
       <row>
         <cell align="left" valign="middle">\f</cell>
-        <cell align="left" valign="middle">form feed</cell>
+        <cell align="left" valign="middle">Form feed</cell>
       </row>
       <row>
         <cell align="left" valign="middle">\n</cell>
-        <cell align="left" valign="middle">newline</cell>
+        <cell align="left" valign="middle">Newline</cell>
       </row>
       <row>
         <cell align="left" valign="middle">\r</cell>
-        <cell align="left" valign="middle">carriage return</cell>
+        <cell align="left" valign="middle">Carriage return</cell>
       </row>
       <row>
         <cell align="left" valign="middle">\s</cell>
-        <cell align="left" valign="middle">space</cell>
+        <cell align="left" valign="middle">Space</cell>
       </row>
       <row>
         <cell align="left" valign="middle">\t</cell>
-        <cell align="left" valign="middle">tab</cell>
+        <cell align="left" valign="middle">Tab</cell>
       </row>
       <row>
         <cell align="left" valign="middle">\v</cell>
-        <cell align="left" valign="middle">vertical tab</cell>
+        <cell align="left" valign="middle">Vertical tab</cell>
       </row>
       <row>
         <cell align="left" valign="middle">\XYZ, \YZ, \Z</cell>
-        <cell align="left" valign="middle">character with octal representation XYZ, YZ or Z</cell>
+        <cell align="left" valign="middle">Character with octal
+        representation XYZ, YZ or Z</cell>
       </row>
       <row>
         <cell align="left" valign="middle">\xXY</cell>
-        <cell align="left" valign="middle">character with hexadecimal representation XY</cell>
+        <cell align="left" valign="middle">Character with hexadecimal
+        representation XY</cell>
       </row>
       <row>
         <cell align="left" valign="middle">\x{X...}</cell>
-        <cell align="left" valign="middle">character with hexadecimal representation; X... is one or more hexadecimal characters</cell>
+        <cell align="left" valign="middle">Character with hexadecimal
+        representation; X... is one or more hexadecimal characters</cell>
       </row>
       <row>
         <cell align="left" valign="middle">\^a...\^z        <br></br>
 \^A...\^Z</cell>
-        <cell align="left" valign="middle">control A to control Z</cell>
+        <cell align="left" valign="middle">Control A to control Z</cell>
       </row>
       <row>
         <cell align="left" valign="middle">\'</cell>
-        <cell align="left" valign="middle">single quote</cell>
+        <cell align="left" valign="middle">Single quote</cell>
       </row>
       <row>
         <cell align="left" valign="middle">\"</cell>
-        <cell align="left" valign="middle">double quote</cell>
+        <cell align="left" valign="middle">Double quote</cell>
       </row>
       <row>
         <cell align="left" valign="middle">\\</cell>
-        <cell align="left" valign="middle">backslash</cell>
+        <cell align="left" valign="middle">Backslash</cell>
       </row>
-      <tcaption>Recognized Escape Sequences.</tcaption>
+      <tcaption>Recognized Escape Sequences</tcaption>
     </table>
   </section>
 
   <section>
     <title>Type Conversions</title>
-    <p>There are a number of BIFs for type conversions. Examples:</p>
+    <p>There are a number of BIFs for type conversions.</p>
+    <p><em>Examples:</em></p>
     <pre>
 1> <input>atom_to_list(hello).</input>
 "hello"
diff --git a/system/doc/reference_manual/distributed.xml b/system/doc/reference_manual/distributed.xml
index 88f98bc106..fb83e356f9 100644
--- a/system/doc/reference_manual/distributed.xml
+++ b/system/doc/reference_manual/distributed.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2003</year><year>2013</year>
+      <year>2003</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -36,22 +36,24 @@
       runtime system is called a <em>node</em>. Message passing between
       processes at different nodes, as well as links and monitors, are
       transparent when pids are used. Registered names, however, are
-      local to each node. This means the node must be specified as well
-      when sending messages etc. using registered names.</p>
+      local to each node. This means that the node must be specified as well
+      when sending messages, and so on, using registered names.</p>
     <p>The distribution mechanism is implemented using TCP/IP sockets.
-      How to implement an alternative carrier is described in <em>ERTS User's Guide</em>.</p>
+      How to implement an alternative carrier is described in the
+      <seealso marker="erts:alt_dist">ERTS User's Guide</seealso>.</p>
   </section>
 
   <section>
     <title>Nodes</title>
-    <p>A <em>node</em> is an executing Erlang runtime system which has
-      been given a name, using the command line flag <c>-name</c>
+    <p>A <em>node</em> is an executing Erlang runtime system that has
+      been given a name, using the command-line flag <c>-name</c>
       (long names) or <c>-sname</c> (short names).</p>
-    <p>The format of the node name is an atom <c>name@host</c> where
-      <c>name</c> is the name given by the user and <c>host</c> is
+    <p>The format of the node name is an atom <c>name@host</c>.
+      <c>name</c> is the name given by the user. <c>host</c> is
       the full host name if long names are used, or the first part of
       the host name if short names are used. <c>node()</c> returns
-      the name of the node. Example:</p>
+      the name of the node.</p>
+      <p><em>Example:</em></p>
     <pre>
 % <input>erl -name dilbert</input>
 ([email protected])1> <input>node().</input>
@@ -69,16 +71,16 @@ dilbert@uab</pre>
   <section>
     <title>Node Connections</title>
     <p>The nodes in a distributed Erlang system are loosely connected.
-      The first time the name of another node is used, for example if
+      The first time the name of another node is used, for example, if
       <c>spawn(Node,M,F,A)</c> or <c>net_adm:ping(Node)</c> is called,
-      a connection attempt to that node will be made.</p>
+      a connection attempt to that node is made.</p>
     <p>Connections are by default transitive. If a node A connects to
-      node B, and node B has a connection to node C, then node A will
-      also try to connect to node C. This feature can be turned off by
-      using the command line flag <c>-connect_all false</c>, see
-      <c>erl(1)</c>.</p>
+      node B, and node B has a connection to node C, then node A
+      also tries to connect to node C. This feature can be turned off by
+      using the command-line flag <c>-connect_all false</c>, see the
+      <seealso marker="erts:erl">erl(1)</seealso> manual page in ERTS.</p>
     <p>If a node goes down, all connections to that node are removed.
-      Calling <c>erlang:disconnect_node(Node)</c> will force disconnection
+      Calling <c>erlang:disconnect_node(Node)</c> forces disconnection
       of a node.</p>
     <p>The list of (visible) nodes currently connected to is returned by
       <c>nodes()</c>.</p>
@@ -89,23 +91,24 @@ dilbert@uab</pre>
     <p>The Erlang Port Mapper Daemon <em>epmd</em> is automatically
       started at every host where an Erlang node is started. It is
       responsible for mapping the symbolic node names to machine
-      addresses. See <c>epmd(1)</c>.</p>
+      addresses. See the
+      <seealso marker="erts:epmd">epmd(1)</seealso> manual page in ERTS.</p>
   </section>
 
   <section>
     <title>Hidden Nodes</title>
     <p>In a distributed Erlang system, it is sometimes useful to
       connect to a node without also connecting to all other nodes.
-      An example could be some kind of O&amp;M functionality used to
-      inspect the status of a system without disturbing it. For this
-      purpose, a <em>hidden node</em> may be used.</p>
-    <p>A hidden node is a node started with the command line flag
+      An example is some kind of O&amp;M functionality used to
+      inspect the status of a system, without disturbing it. For this
+      purpose, a <em>hidden node</em> can be used.</p>
+    <p>A hidden node is a node started with the command-line flag
       <c>-hidden</c>. Connections between hidden nodes and other nodes
       are not transitive, they must be set up explicitly. Also, hidden
       nodes does not show up in the list of nodes returned by
       <c>nodes()</c>. Instead, <c>nodes(hidden)</c> or
       <c>nodes(connected)</c> must be used. This means, for example,
-      that the hidden node will not be added to the set of nodes that
+      that the hidden node is not added to the set of nodes that
       <c>global</c> is keeping track of.</p>
     <p>This feature was added in Erlang 5.0/OTP R7.</p>
   </section>
@@ -114,9 +117,11 @@ dilbert@uab</pre>
     <title>C Nodes</title>
     <p>A <em>C node</em> is a C program written to act as a hidden node
       in a distributed Erlang system. The library <em>Erl_Interface</em>
-      contains functions for this purpose. Refer to the documentation
-      for Erl_Interface and <em>Interoperability Tutorial</em> for more
-      information about C nodes.</p>
+      contains functions for this purpose. For more information about
+      C nodes, see the <seealso marker="erl_interface:ei_users_guide">
+      Erl_Interface</seealso> application and
+      <seealso marker="doc/tutorial:introduction#interoperability tutorial">
+      Interoperability Tutorial.</seealso>.</p>
   </section>
 
   <section>
@@ -125,7 +130,7 @@ dilbert@uab</pre>
       with each other. In a network of different Erlang nodes, it is
       built into the system at the lowest possible level. Each node has
       its own <em>magic cookie</em>, which is an Erlang atom.</p>
-    <p>When a nodes tries to connect to another node, the magic cookies
+    <p>When a node tries to connect to another node, the magic cookies
       are compared. If they do not match, the connected node rejects
       the connection.</p>
     <p>At start-up, a node has a random atom assigned as its magic
@@ -141,8 +146,8 @@ dilbert@uab</pre>
       the local node assume that all other nodes have the same cookie
       <c>Cookie</c>.</p>
     <p>Thus, groups of users with identical cookie files get Erlang
-      nodes which can communicate freely and without interference from
-      the magic cookie system. Users who want run nodes on separate
+      nodes that can communicate freely and without interference from
+      the magic cookie system. Users who want to run nodes on separate
       file systems must make certain that their cookie files are
       identical on the different file systems.</p>
     <p>For a node <c>Node1</c> with magic cookie <c>Cookie</c> to be
@@ -154,19 +159,25 @@ dilbert@uab</pre>
     <p>The default when a connection is established between two nodes,
       is to immediately connect all other visible nodes as well. This
       way, there is always a fully connected network. If there are
-      nodes with different cookies, this method might be inappropriate
-      and the command line flag <c>-connect_all false</c> must be set,
-      see <seealso marker="erts:erl">erl(1)</seealso>.</p>
+      nodes with different cookies, this method can be inappropriate
+      and the command-line flag <c>-connect_all false</c> must be set,
+      see the <seealso marker="erts:erl">erl(1)</seealso>
+      manual page in ERTS.</p>
     <p>The magic cookie of the local node is retrieved by calling
       <c>erlang:get_cookie()</c>.</p>
   </section>
 
   <section>
     <title>Distribution BIFs</title>
-    <p>Some useful BIFs for distributed programming, see
-      <c>erlang(3)</c> for more information:</p>
+    <p>Some useful BIFs for distributed programming
+      (for more information, see the <seealso marker="erts:erlang">
+      erlang(3)</seealso> manual page in ERTS:</p>
     <table>
       <row>
+        <cell align="left" valign="middle"><em>BIF</em></cell>
+        <cell align="left" valign="middle"><em>Description</em></cell>
+      </row>
+      <row>
         <cell align="left" valign="middle"><c>erlang:disconnect_node(Node)</c></cell>
         <cell align="left" valign="middle">Forces the disconnection of a node.</cell>
       </row>
@@ -180,7 +191,9 @@ dilbert@uab</pre>
       </row>
       <row>
         <cell align="left" valign="middle"><c>monitor_node(Node, true|false)</c></cell>
-        <cell align="left" valign="middle">Monitor the status of <c>Node</c>. A message<c>{nodedown, Node}</c> is received if the connection to it is lost.</cell>
+        <cell align="left" valign="middle">Monitors the status of
+        <c>Node</c>. A message<c>{nodedown, Node}</c> is received
+        if the connection to it is lost.</cell>
       </row>
       <row>
         <cell align="left" valign="middle"><c>node()</c></cell>
@@ -196,11 +209,16 @@ dilbert@uab</pre>
       </row>
       <row>
         <cell align="left" valign="middle"><c>nodes(Arg)</c></cell>
-        <cell align="left" valign="middle">Depending on <c>Arg</c>, this function  can return a list not only of visible nodes, but also hidden nodes and previously known nodes, etc.</cell>
+        <cell align="left" valign="middle">Depending on <c>Arg</c>,
+        this function can return a list not only of visible nodes,
+        but also hidden nodes and previously known nodes, and so on.</cell>
       </row>
       <row>
         <cell align="left" valign="middle"><c>erlang:set_cookie(Node, Cookie)</c></cell>
-        <cell align="left" valign="middle">Sets the magic cookie used when connecting to <c>Node</c>. If <c>Node</c> is the current node, <c>Cookie</c> will be used when connecting to all new nodes.</cell>
+        <cell align="left" valign="middle">Sets the magic cookie used
+        when connecting to <c>Node</c>. If <c>Node</c> is the
+        current node, <c>Cookie</c> is used when connecting to
+        all new nodes.</cell>
       </row>
       <row>
         <cell align="left" valign="middle"><c>spawn[_link|_opt](Node, Fun)</c></cell>
@@ -210,18 +228,24 @@ dilbert@uab</pre>
         <cell align="left" valign="middle"><c>spawn[_link|opt](Node, Module, FunctionName, Args)</c></cell>
         <cell align="left" valign="middle">Creates a process at a remote node.</cell>
       </row>
-      <tcaption>Distribution BIFs.</tcaption>
+      <tcaption>Distribution BIFs</tcaption>
     </table>
   </section>
 
   <section>
-    <title>Distribution Command Line Flags</title>
-    <p>Examples of command line flags used for distributed programming,
-      see <c>erl(1)</c> for more information:</p>
+    <title>Distribution Command-Line Flags</title>
+    <p>Examples of command-line flags used for distributed programming
+      (for more information, see the <seealso marker="erts:erl">erl(1)
+      </seealso> manual page in ERTS:</p>
     <table>
       <row>
+        <cell align="left" valign="middle"><em>Command-Line Flag</em></cell>
+        <cell align="left" valign="middle"><em>Description</em></cell>
+      </row>
+      <row>
         <cell align="left" valign="middle"><c>-connect_all false</c></cell>
-        <cell align="left" valign="middle">Only explicit connection set-ups will be used.</cell>
+        <cell align="left" valign="middle">Only explicit connection
+        set-ups are used.</cell>
       </row>
       <row>
         <cell align="left" valign="middle"><c>-hidden</c></cell>
@@ -239,16 +263,20 @@ dilbert@uab</pre>
         <cell align="left" valign="middle"><c>-sname Name</c></cell>
         <cell align="left" valign="middle">Makes a runtime system into a node, using short node names.</cell>
       </row>
-      <tcaption>Distribution Command Line Flags.</tcaption>
+      <tcaption>Distribution Command-Line Flags</tcaption>
     </table>
   </section>
 
   <section>
     <title>Distribution Modules</title>
     <p>Examples of modules useful for distributed programming:</p>
-    <p>In Kernel:</p>
+    <p>In the Kernel application:</p>
     <table>
       <row>
+        <cell align="left" valign="middle"><em>Module</em></cell>
+        <cell align="left" valign="middle"><em>Description</em></cell>
+      </row>
+      <row>
         <cell align="left" valign="middle"><c>global</c></cell>
         <cell align="left" valign="middle">A global name registration facility.</cell>
       </row>
@@ -266,9 +294,13 @@ dilbert@uab</pre>
       </row>
       <tcaption>Kernel Modules Useful For Distribution.</tcaption>
     </table>
-    <p>In STDLIB:</p>
+    <p>In the STDLIB application:</p>
     <table>
       <row>
+        <cell align="left" valign="middle"><em>Module</em></cell>
+        <cell align="left" valign="middle"><em>Description</em></cell>
+      </row>
+      <row>
         <cell align="left" valign="middle"><c>slave</c></cell>
         <cell align="left" valign="middle">Start and control of slave nodes.</cell>
       </row>
diff --git a/system/doc/reference_manual/errors.xml b/system/doc/reference_manual/errors.xml
index dde6e68f4a..66ecf6aa94 100644
--- a/system/doc/reference_manual/errors.xml
+++ b/system/doc/reference_manual/errors.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2003</year><year>2013</year>
+      <year>2003</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -38,12 +38,12 @@
       <item>Run-time errors</item>
       <item>Generated errors</item>
     </list>
-    <p>A compile-time error, for example a syntax error, should not
+    <p>A compile-time error, for example a syntax error, does not
       cause much trouble as it is caught by the compiler.</p>
     <p>A logical error is when a program does not behave as intended,
-      but does not crash. An example could be that nothing happens when
+      but does not crash. An example is that nothing happens when
       a button in a graphical user interface is clicked.</p>
-    <p>A run-time error is when a crash occurs. An example could be
+    <p>A run-time error is when a crash occurs. An example is
       when an operator is applied to arguments of the wrong type.
       The Erlang programming language has built-in features for
       handling of run-time errors.</p>
@@ -54,23 +54,23 @@
       of class <c>error</c>.
       </p>
     <p>A generated error is when the code itself calls
-      <c>exit/1</c> or <c>throw/1</c>. Note that emulated run-time
+      <c>exit/1</c> or <c>throw/1</c>. Notice that emulated run-time
       errors are not denoted as generated errors here.
       </p>
     <p>Generated errors are exceptions of classes <c>exit</c> and
       <c>throw</c>.
       </p>
     <p>When a run-time error or generated error occurs in Erlang, 
-      execution for the process which evaluated 
+      execution for the process that evaluated
       the erroneous expression is stopped.
       This is referred to as a <em>failure</em>, that execution or
       evaluation <em>fails</em>, or that the process <em>fails</em>,
-      <em>terminates</em> or <em>exits</em>. Note that a process may
+      <em>terminates</em>, or <em>exits</em>. Notice that a process can
       terminate/exit for other reasons than a failure.</p>
-    <p>A process that terminates will emit an <em>exit signal</em> with
+    <p>A process that terminates emits an <em>exit signal</em> with
       an <em>exit reason</em> that says something about which error
-      has occurred. Normally, some information about the error will
-      be printed to the terminal.</p>
+      has occurred. Normally, some information about the error is
+      printed to the terminal.</p>
   </section>
 
   <section>
@@ -78,10 +78,12 @@
     <p>Exceptions are run-time errors or generated errors and 
       are of three different classes, with different origins. The
       <seealso marker="expressions#try">try</seealso> expression 
-      (appeared in Erlang 5.4/OTP-R10B)
+      (new in Erlang 5.4/OTP R10B)
       can distinguish between the different classes, whereas the
       <seealso marker="expressions#catch">catch</seealso>
-      expression can not. They are described in the Expressions chapter.</p>
+      expression cannot. They are described in
+      <seealso marker="expressions">Expressions
+      </seealso>.</p>
     <table>
       <row>
         <cell align="left" valign="middle"><em>Class</em></cell>
@@ -89,7 +91,9 @@
       </row>
       <row>
         <cell align="left" valign="middle"><c>error</c></cell>
-        <cell align="left" valign="middle">Run-time error for example <c>1+a</c>, or the process called <c>erlang:error/1,2</c> (appeared in Erlang 5.4/OTP-R10B)</cell>
+        <cell align="left" valign="middle">Run-time error,
+        for example, <c>1+a</c>, or the process called
+        <c>erlang:error/1,2</c> (new in Erlang 5.4/OTP R10B)</cell>
       </row>
       <row>
         <cell align="left" valign="middle"><c>exit</c></cell>
@@ -102,11 +106,11 @@
       <tcaption>Exception Classes.</tcaption>
     </table>
     <p>An exception consists of its class, an exit reason
-      (the <seealso marker="#exit_reasons">Exit Reason</seealso>),
-      and a stack trace (that aids in finding the code location of
+      (see <seealso marker="#exit_reasons">Exit Reason</seealso>),
+      and a stack trace (which aids in finding the code location of
       the exception).</p>
     <p>The stack trace can be retrieved using
-      <c>erlang:get_stacktrace/0</c> (new in Erlang 5.4/OTP-R10B)
+      <c>erlang:get_stacktrace/0</c> (new in Erlang 5.4/OTP R10B)
       from within a <c>try</c> expression, and is returned for 
       exceptions of class <c>error</c> from a <c>catch</c> expression.</p>
     <p>An exception of class <c>error</c> is also known as a run-time 
@@ -114,38 +118,38 @@
   </section>
 
   <section>
-    <title>Handling of Run-Time Errors in Erlang</title>
+    <title>Handling of Run-time Errors in Erlang</title>
 
     <section>
       <title>Error Handling Within Processes</title>
       <p>It is possible to prevent run-time errors and other
         exceptions from causing
         the process to terminate by using <c>catch</c> or
-        <c>try</c>, see the Expressions chapter about 
-        <seealso marker="expressions#catch">Catch</seealso>
-        and <seealso marker="expressions#try">Try</seealso>.</p>
+        <c>try</c>, see <seealso marker="expressions">
+        Expressions</seealso> about
+        <seealso marker="expressions#catch">catch</seealso>
+        and <seealso marker="expressions#try">try</seealso>.</p>
     </section>
 
     <section>
       <title>Error Handling Between Processes</title>
       <p>Processes can monitor other processes and detect process
         terminations, see
-        the <seealso marker="processes#errors">Processes</seealso>
-        chapter.</p>
+        <seealso marker="processes#errors">Processes</seealso>.</p>
     </section>
   </section>
 
   <section>
     <marker id="exit_reasons"></marker>
     <title>Exit Reasons</title>
-    <p>When a run-time error occurs, 
-      that is an exception of class <c>error</c>, 
-      the exit reason is a tuple <c>{Reason,Stack}</c>. 
+    <p>When a run-time error occurs,
+      that is an exception of class <c>error</c>.
+      The exit reason is a tuple <c>{Reason,Stack}</c>, where
       <c>Reason</c> is a term indicating the type of error:</p>
     <table>
       <row>
         <cell align="left" valign="middle"><em>Reason</em></cell>
-        <cell align="left" valign="middle"><em>Type of error</em></cell>
+        <cell align="left" valign="middle"><em>Type of Error</em></cell>
       </row>
       <row>
         <cell align="left" valign="middle"><c>badarg</c></cell>
@@ -181,7 +185,7 @@
       </row>
       <row>
         <cell align="left" valign="middle"><c>{badfun,F}</c></cell>
-        <cell align="left" valign="middle">There is something wrong with a fun <c>F</c>.</cell>
+        <cell align="left" valign="middle">Something is wrong with a fun <c>F</c>.</cell>
       </row>
       <row>
         <cell align="left" valign="middle"><c>{badarity,F}</c></cell>
@@ -201,14 +205,17 @@
       </row>
       <row>
         <cell align="left" valign="middle"><c>system_limit</c></cell>
-        <cell align="left" valign="middle">A system limit has been reached. See Efficiency Guide for information about system limits.</cell>
+        <cell align="left" valign="middle">A system limit has been reached.
+        See <seealso marker="doc/efficiency_guide:advanced">
+        Efficiency Guide</seealso> for information about system limits.
+        </cell>
       </row>
-      <tcaption>Exit Reasons.</tcaption>
+      <tcaption>Exit Reasons</tcaption>
     </table>
     <p><c>Stack</c> is the stack of function calls being evaluated
       when the error occurred, given as a list of tuples
       <c>{Module,Name,Arity}</c> with the most recent function call
-      first. The most recent function call tuple may in some
+      first. The most recent function call tuple can in some
       cases be <c>{Module,Name,[Arg]}</c>.</p>
   </section>
 </chapter>
diff --git a/system/doc/reference_manual/expressions.xml b/system/doc/reference_manual/expressions.xml
index 62a344ad58..fd3cfabd3d 100644
--- a/system/doc/reference_manual/expressions.xml
+++ b/system/doc/reference_manual/expressions.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2003</year><year>2013</year>
+      <year>2003</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -28,13 +28,17 @@
     <rev></rev>
     <file>expressions.xml</file>
   </header>
-  <p>In this chapter, all valid Erlang expressions are listed.
+  <p>In this section, all valid Erlang expressions are listed.
     When writing Erlang programs, it is also allowed to use macro-
     and record expressions. However, these expressions are expanded
     during compilation and are in that sense not true Erlang
     expressions. Macro- and record expressions are covered in
-    separate chapters: <seealso marker="macros">Macros</seealso> and
-    <seealso marker="records">Records</seealso>.</p>
+    separate sections:
+   </p>
+  <list type="bulleted">
+    <item><p><seealso marker="macros">Preprocessor</seealso></p></item>
+    <item><p><seealso marker="records">Records</seealso></p></item>
+  </list>
 
   <section>
     <title>Expression Evaluation</title>
@@ -48,15 +52,15 @@ Expr1 + Expr2</code>
       performed.</p>
     <p>Many of the operators can only be applied to arguments of a
       certain type. For example, arithmetic operators can only be
-      applied to numbers. An argument of the wrong type will cause
-      a <c>badarg</c> run-time error.</p>
+      applied to numbers. An argument of the wrong type causes
+      a <c>badarg</c> runtime error.</p>
   </section>
 
   <section>
     <marker id="term"></marker>
     <title>Terms</title>
     <p>The simplest form of expression is a term, that is an integer,
-      float, atom, string, list, map or tuple.
+      float, atom, string, list, map, or tuple.
       The return value is the term itself.</p>
   </section>
 
@@ -65,9 +69,10 @@ Expr1 + Expr2</code>
     <p>A variable is an expression. If a variable is bound to a value,
       the return value is this value. Unbound variables are only
       allowed in patterns.</p>
-    <p>Variables start with an uppercase letter or underscore (_)
-      and may contain alphanumeric characters, underscore and @.
-      Examples:</p>
+    <p>Variables start with an uppercase letter or underscore (_).
+      Variables can contain alphanumeric characters, underscore and <c>@</c>.
+     </p>
+     <p><em>Examples:</em></p>
     <pre>
 X
 Name1
@@ -77,18 +82,20 @@ _
 _Height</pre>
     <p>Variables are bound to values using
       <seealso marker="patterns">pattern matching</seealso>. Erlang
-      uses <em>single assignment</em>, a variable can only be bound
+      uses <em>single assignment</em>, that is, a variable can only be bound
       once.</p>
     <p>The <em>anonymous variable</em> is denoted by underscore (_) and
       can be used when a variable is required but its value can be
-      ignored. Example:</p>
+      ignored.</p>
+      <p><em>Example:</em></p>
     <pre>
 [H|_] = [1,2,3]</pre>
-    <p>Variables starting with underscore (_), for example
+    <p>Variables starting with underscore (_), for example,
       <c>_Height</c>, are normal variables, not anonymous. They are
-      however ignored by the compiler in the sense that they will not
-      generate any warnings for unused variables. Example: The following
-      code</p>
+      however ignored by the compiler in the sense that they do not
+      generate any warnings for unused variables.</p>
+      <p><em>Example:</em></p>
+      <p>The following code:</p>
     <pre>
 member(_, []) ->
     [].</pre>
@@ -96,36 +103,37 @@ member(_, []) ->
     <pre>
 member(Elem, []) ->
     [].</pre>
-    <p>This will however cause a warning for an unused variable
+    <p>This causes a warning for an unused variable,
       <c>Elem</c>, if the code is compiled with the flag
       <c>warn_unused_vars</c> set. Instead, the code can be rewritten
       to:</p>
     <pre>
 member(_Elem, []) ->
     [].</pre>
-    <p>Note that since variables starting with an underscore are
-      not anonymous, this will match:</p>
+    <p>Notice that since variables starting with an underscore are
+      not anonymous, this matches:</p>
     <pre>
 {_,_} = {1,2}</pre>
-    <p>But this will fail:</p>
+    <p>But this fails:</p>
     <pre>
 {_N,_N} = {1,2}</pre>
     <p>The scope for a variable is its function clause.
       Variables bound in a branch of an <c>if</c>, <c>case</c>, 
       or <c>receive</c> expression must be bound in all branches 
-      to have a value outside the expression, otherwise they
-      will be regarded as 'unsafe' outside the expression.</p>
+      to have a value outside the expression. Otherwise they
+      are regarded as 'unsafe' outside the expression.</p>
     <p>For the <c>try</c> expression introduced in 
-      Erlang 5.4/OTP-R10B, variable scoping is limited so that 
+      Erlang 5.4/OTP R10B, variable scoping is limited so that
       variables bound in the expression are always 'unsafe' outside 
-      the expression. This will be improved.</p>
+      the expression. This is to be improved.</p>
   </section>
 
   <section>
     <marker id="pattern"></marker>
     <title>Patterns</title>
-    <p>A pattern has the same structure as a term but may contain
-      unbound variables. Example:</p>
+    <p>A pattern has the same structure as a term but can contain
+      unbound variables.</p>
+      <p><em>Example:</em></p>
     <pre>
 Name1
 [H|T]
@@ -136,13 +144,13 @@ Name1
     <section>
       <title>Match Operator = in Patterns</title>
       <p>If <c>Pattern1</c> and <c>Pattern2</c> are valid patterns,
-        then the following is also a valid pattern:</p>
+        the following is also a valid pattern:</p>
       <pre>
 Pattern1 = Pattern2</pre>
       <p>When matched against a term, both <c>Pattern1</c> and
-        <c>Pattern2</c> will be matched against the term. The idea
-        behind this feature is to avoid reconstruction of terms.
-        Example:</p>
+        <c>Pattern2</c> are  matched against the term. The idea
+        behind this feature is to avoid reconstruction of terms.</p>
+       <p><em>Example:</em></p>
       <pre>
 f({connect,From,To,Number,Options}, To) ->
     Signal = {connect,From,To,Number,Options},
@@ -163,16 +171,20 @@ f(Signal, To) ->
       <pre>
 f("prefix" ++ Str) -> ...</pre>
       <p>This is syntactic sugar for the equivalent, but harder to
-        read</p>
+        read:</p>
       <pre>
 f([$p,$r,$e,$f,$i,$x | Str]) -> ...</pre>
     </section>
 
     <section>
       <title>Expressions in Patterns</title>
-      <p>An arithmetic expression can be used within a pattern, if
-        it uses only numeric or bitwise operators, and if its value
-        can be evaluated to a constant at compile-time. Example:</p>
+      <p>An arithmetic expression can be used within a pattern if
+        it meets both of the following two conditions:</p>
+      <list type="bulleted">
+        <item>It uses only numeric or bitwise operators.</item>
+        <item>Its value can be evaluated to a constant when complied.</item>
+      </list>
+      <p><em>Example:</em></p>
       <pre>
 case {Value, Result} of
     {?THRESHOLD+1, ok} -> ...</pre>
@@ -182,21 +194,21 @@ case {Value, Result} of
 
   <section>
     <title>Match</title>
+    <p>The following matches <c>Expr1</c>, a pattern, against
+      <c>Expr2</c>:</p>
     <pre>
 Expr1 = Expr2</pre>
-    <p>Matches <c>Expr1</c>, a pattern, against <c>Expr2</c>.
-      If the matching succeeds, any unbound variable in the pattern
+    <p>If the matching succeeds, any unbound variable in the pattern
       becomes bound and the value of <c>Expr2</c> is returned.</p>
-    <p>If the matching fails, a <c>badmatch</c> run-time error will
-      occur.</p>
-    <p>Examples:</p>
+    <p>If the matching fails, a <c>badmatch</c> run-time error occurs.</p>
+    <p><em>Examples:</em></p>
     <pre>
 1> <input>{A, B} = {answer, 42}.</input>
 {answer,42}
 2> <input>A.</input>
 answer
 3> <input>{C, D} = [1, 2].</input>
-** exception error: no match of right hand side value [1,2]</pre>
+** exception error: no match of right-hand side value [1,2]</pre>
   </section>
 
   <section>
@@ -210,27 +222,28 @@ ExprM:ExprF(Expr1,...,ExprN)</pre>
       <c>ExprF</c> must be an atom or an expression that evaluates to
       an atom. The function is said to be called by using the
       <em>fully qualified function name</em>. This is often referred
-      to as a <em>remote</em> or <em>external function call</em>.
-      Example:</p>
+      to as a <em>remote</em> or <em>external function call</em>.</p>
+      <p><em>Example:</em></p>
     <code type="none">
 lists:keysearch(Name, 1, List)</code>
     <p>In the second form of function calls,
       <c>ExprF(Expr1,...,ExprN)</c>, <c>ExprF</c> must be an atom or
       evaluate to a fun.</p>
 
-    <p>If <c>ExprF</c> is an atom the function is said to be called by
+    <p>If <c>ExprF</c> is an atom, the function is said to be called by
       using the <em>implicitly qualified function name</em>.  If the
       function <c>ExprF</c> is locally defined, it is called.
-      Alternatively if <c>ExprF</c> is explicitly imported from module
-      <c>M</c>, <c>M:ExprF(Expr1,...,ExprN)</c> is called. If
+      Alternatively, if <c>ExprF</c> is explicitly imported from the
+      <c>M</c> module, <c>M:ExprF(Expr1,...,ExprN)</c> is called. If
       <c>ExprF</c> is neither declared locally nor explicitly
       imported, <c>ExprF</c> must be the name of an automatically
-      imported BIF. Examples:</p>
+      imported BIF. </p>
+      <p><em>Examples:</em></p>
 
     <code type="none">
 handle(Msg, State)
 spawn(m, init, [])</code>
-    <p>Examples where ExprF is a fun:</p>
+    <p><em>Examples</em> where <c>ExprF</c> is a fun:</p>
     <code type="none">
 Fun1 = fun(X) -> X+1 end
 Fun1(3)
@@ -239,16 +252,15 @@ Fun1(3)
 fun lists:append/2([1,2], [3,4])
 => [1,2,3,4]</code>
 
-    <p>Note that when calling a local function, there is a difference
-    between using the implicitly or fully qualified function name, as
-    the latter always refers to the latest version of the module. See
-    <seealso marker="code_loading">Compilation and Code Loading</seealso>.</p>
-
-    <p>See also the chapter about
-      <seealso marker="functions#eval">Function Evaluation</seealso>.</p>
+    <p>Notice that when calling a local function, there is a difference
+    between using the implicitly or fully qualified function name.
+    The latter always refers to the latest version of the module.
+    See <seealso marker="code_loading">Compilation and Code Loading
+    </seealso> and <seealso marker="functions#eval">
+    Function Evaluation</seealso>.</p>
 
     <section>
-      <title>Local Function Names Clashing With  Auto-imported BIFs</title>
+      <title>Local Function Names Clashing With  Auto-Imported BIFs</title>
     <p>If a local function has the same name as an auto-imported BIF,
     the semantics is that implicitly qualified function calls are
     directed to the locally defined function, not to the BIF. To avoid
@@ -260,9 +272,9 @@ fun lists:append/2([1,2], [3,4])
     <warning><p>Before OTP R14A (ERTS version 5.8), an implicitly
     qualified function call to a function having the same name as an
     auto-imported BIF always resulted in the BIF being called. In
-    newer versions of the compiler the local function is instead
-    called. The change is there to avoid that future additions to the
-    set of auto-imported BIFs does not silently change the behavior
+    newer versions of the compiler, the local function is called instead.
+    This is to avoid that future additions to the
+    set of auto-imported BIFs do not silently change the behavior
     of old code.</p>
 
     <p>However, to avoid that old (pre R14) code changed its
@@ -272,8 +284,8 @@ fun lists:append/2([1,2], [3,4])
     5.8) and have an implicitly qualified call to that function in
     your code, you either need to explicitly remove the auto-import
     using a compiler directive, or replace the call with a fully
-    qualified function call, otherwise you will get a compilation
-    error. See example below:</p> </warning>
+    qualified function call. Otherwise you get a compilation
+    error. See the following example:</p> </warning>
 
     <code type="none">
 -export([length/1,f/1]).
@@ -290,9 +302,10 @@ f(X) when erlang:length(X) > 3 -> %% Calls erlang:length/1,
     long.</code>
 
     <p>The same logic applies to explicitly imported functions from
-    other modules as to locally defined functions. To both import a
+    other modules, as to locally defined functions.
+    It is not allowed to both import a
     function from another module and have the function declared in the
-    module at the same time is not allowed.</p>
+    module at the same time:</p>
 
     <code type="none">
 -export([f/1]).
@@ -310,10 +323,10 @@ f(X) ->
     length(X).                     %% mod:length/1 is called</code>
 
 
-    <p>For auto-imported BIFs added to Erlang in release R14A and thereafter,
+    <p>For auto-imported BIFs added in Erlang/OTP R14A and thereafter,
     overriding the name with a local function or explicit import is always
     allowed. However, if the <c>-compile({no_auto_import,[F/A])</c>
-    directive is not used, the compiler will issue a warning whenever
+    directive is not used, the compiler issues a warning whenever
     the function is called in the module using the implicitly qualified
     function name.</p>
     </section>
@@ -330,15 +343,16 @@ if
         BodyN
 end</pre>
     <p>The branches of an <c>if</c>-expression are scanned sequentially
-      until a guard sequence <c>GuardSeq</c> which evaluates to true is
+      until a guard sequence <c>GuardSeq</c> that evaluates to true is
       found. Then the corresponding <c>Body</c> (sequence of expressions
       separated by ',') is evaluated.</p>
     <p>The return value of <c>Body</c> is the return value of
       the <c>if</c> expression.</p>
-    <p>If no guard sequence is true, an <c>if_clause</c> run-time error
-      will occur. If necessary, the guard expression <c>true</c> can be
+    <p>If no guard sequence is evaluated as true,
+      an <c>if_clause</c> run-time error
+      occurs. If necessary, the guard expression <c>true</c> can be
       used in the last branch, as that guard sequence is always true.</p>
-    <p>Example:</p>
+    <p><em>Example:</em></p>
     <pre>
 is_greater_than(X, Y) ->
     if
@@ -367,8 +381,8 @@ end</pre>
     <p>The return value of <c>Body</c> is the return value of
       the <c>case</c> expression.</p>
     <p>If there is no matching pattern with a true guard sequence,
-      a <c>case_clause</c> run-time error will occur.</p>
-    <p>Example:</p>
+      a <c>case_clause</c> run-time error occurs.</p>
+    <p><em>Example:</em></p>
     <pre>
 is_valid_signal(Signal) ->
     case Signal of
@@ -389,15 +403,15 @@ Expr1 ! Expr2</pre>
     <p>Sends the value of <c>Expr2</c> as a message to the process
       specified by <c>Expr1</c>. The value of <c>Expr2</c> is also
       the return value of the expression.</p>
-    <p><c>Expr1</c> must evaluate to a pid, a registered name (atom) or
-      a tuple <c>{Name,Node}</c>, where <c>Name</c> is an atom and
-      <c>Node</c> a node name, also an atom.</p>
+    <p><c>Expr1</c> must evaluate to a pid, a registered name (atom), or
+      a tuple <c>{Name,Node}</c>. <c>Name</c> is an atom and
+      <c>Node</c> is a node name, also an atom.</p>
     <list type="bulleted">
       <item>If <c>Expr1</c> evaluates to a name, but this name is not
-       registered, a <c>badarg</c> run-time error will occur.</item>
+       registered, a <c>badarg</c> run-time error occurs.</item>
       <item>Sending a message to a pid never fails, even if the pid
        identifies a non-existing process.</item>
-      <item>Distributed message sending, that is if <c>Expr1</c>
+      <item>Distributed message sending, that is, if <c>Expr1</c>
        evaluates to a tuple <c>{Name,Node}</c> (or a pid located at
        another node), also never fails.</item>
     </list>
@@ -420,14 +434,14 @@ end</pre>
       the second, and so on. If a match succeeds and the optional
       guard sequence <c>GuardSeq</c> is true, the corresponding
       <c>Body</c> is evaluated. The matching message is consumed, that
-      is removed from the mailbox, while any other messages in
+      is, removed from the mailbox, while any other messages in
       the mailbox remain unchanged.</p>
     <p>The return value of <c>Body</c> is the return value of
       the <c>receive</c> expression.</p>
-    <p><c>receive</c> never fails. Execution is suspended, possibly
-      indefinitely, until a message arrives that does match one of
+    <p><c>receive</c> never fails. The execution is suspended, possibly
+      indefinitely, until a message arrives that matches one of
       the patterns and with a true guard sequence. </p>
-    <p>Example:</p>
+    <p><em>Example:</em></p>
     <pre>
 wait_for_onhook() ->
     receive
@@ -438,7 +452,7 @@ wait_for_onhook() ->
             B ! {busy, self()},
             wait_for_onhook()
     end.</pre>
-    <p>It is possible to augment the <c>receive</c> expression with a
+    <p>The <c>receive</c> expression can be augmented with a
       timeout:</p>
     <pre>
 receive
@@ -451,14 +465,14 @@ after
     ExprT ->
         BodyT
 end</pre>
-    <p><c>ExprT</c> should evaluate to an integer. The highest allowed
-      value is 16#ffffffff, that is, the value must fit in 32 bits.
+    <p><c>ExprT</c> is to evaluate to an integer. The highest allowed
+      value is 16#FFFFFFFF, that is, the value must fit in 32 bits.
       <c>receive..after</c> works exactly as <c>receive</c>, except
       that if no matching message has arrived within <c>ExprT</c>
-      milliseconds, then <c>BodyT</c> is evaluated instead and its
-      return value becomes the return value of the <c>receive..after</c>
-      expression.</p>
-    <p>Example:</p>
+      milliseconds, then <c>BodyT</c> is evaluated instead. The
+      return value of <c>BodyT</c> then becomes the return value
+      of the <c>receive..after</c> expression.</p>
+    <p><em>Example:</em></p>
     <pre>
 wait_for_onhook() ->
     receive
@@ -481,10 +495,10 @@ after
     ExprT ->
         BodyT
 end</pre>
-    <p>This construction will not consume any messages, only suspend
-      execution in the process for <c>ExprT</c> milliseconds and can be
+    <p>This construction does not consume any messages, only suspends
+      execution in the process for <c>ExprT</c> milliseconds. This can be
       used to implement simple timers.</p>
-    <p>Example:</p>
+    <p><em>Example:</em></p>
     <pre>
 timer() ->
     spawn(m, timer, [self()]).
@@ -498,12 +512,12 @@ timer(Pid) ->
     <p>There are two special cases for the timeout value <c>ExprT</c>:</p>
     <taglist>
       <tag><c>infinity</c></tag>
-      <item>The process should wait indefinitely for a matching message
-       -- this is the same as not using a timeout. Can be
-       useful for timeout values that are calculated at run-time.</item>
+      <item>The process is to wait indefinitely for a matching message;
+       this is the same as not using a timeout. This can be
+       useful for timeout values that are calculated at runtime.</item>
       <tag>0</tag>
       <item>If there is no matching message in the mailbox, the timeout
-       will occur immediately.</item>
+       occurs immediately.</item>
     </taglist>
   </section>
 
@@ -518,39 +532,39 @@ Expr1 <input>op</input> Expr2</pre>
       </row>
       <row>
         <cell align="left" valign="middle">==</cell>
-        <cell align="left" valign="middle">equal to</cell>
+        <cell align="left" valign="middle">Equal to</cell>
       </row>
       <row>
         <cell align="left" valign="middle">/=</cell>
-        <cell align="left" valign="middle">not equal to</cell>
+        <cell align="left" valign="middle">Not equal to</cell>
       </row>
       <row>
         <cell align="left" valign="middle">=&lt;</cell>
-        <cell align="left" valign="middle">less than or equal to</cell>
+        <cell align="left" valign="middle">Less than or equal to</cell>
       </row>
       <row>
         <cell align="left" valign="middle">&lt;</cell>
-        <cell align="left" valign="middle">less than</cell>
+        <cell align="left" valign="middle">Less than</cell>
       </row>
       <row>
         <cell align="left" valign="middle">&gt;=</cell>
-        <cell align="left" valign="middle">greater than or equal to</cell>
+        <cell align="left" valign="middle">Greater than or equal to</cell>
       </row>
       <row>
         <cell align="left" valign="middle">&gt;</cell>
-        <cell align="left" valign="middle">greater than</cell>
+        <cell align="left" valign="middle">Greater than</cell>
       </row>
       <row>
         <cell align="left" valign="middle">=:=</cell>
-        <cell align="left" valign="middle">exactly equal to</cell>
+        <cell align="left" valign="middle">Exactly equal to</cell>
       </row>
       <row>
         <cell align="left" valign="middle">=/=</cell>
-        <cell align="left" valign="middle">exactly not equal to</cell>
+        <cell align="left" valign="middle">Exactly not equal to</cell>
       </row>
       <tcaption>Term Comparison Operators.</tcaption>
     </table>
-    <p>The arguments may be of different data types. The following
+    <p>The arguments can be of different data types. The following
       order is defined:</p>
     <pre>
 number &lt; atom &lt; reference &lt; fun &lt; port &lt; pid &lt; tuple &lt; list &lt; bit string</pre>
@@ -558,17 +572,18 @@ number &lt; atom &lt; reference &lt; fun &lt; port &lt; pid &lt; tuple &lt; list
       size, two tuples with the same size are compared element by
       element.</p>
       <p>When comparing an integer to a float, the term with the lesser
-      precision will be converted into the other term's type, unless the
-      operator is one of =:= or =/=. A float is more precise than
+      precision is converted into the type of the other term, unless the
+      operator is one of <c>=:=</c> or <c>=/=</c>. A float is more precise than
       an integer until all significant figures of the float are to the left of
       the decimal point. This happens when the float is larger/smaller than
       +/-9007199254740992.0. The conversion strategy is changed
       depending on the size of the float because otherwise comparison of large
       floats and integers would lose their transitivity.</p>
 
-    <p>Returns the Boolean value of the expression, <c>true</c> or
-      <c>false</c>.</p>
-    <p>Examples:</p>
+    <p>Term comparison operators return the Boolean value of the
+      expression, <c>true</c> or <c>false</c>.</p>
+
+    <p><em>Examples:</em></p>
     <pre>
 1> <input>1==1.0.</input>
 true
@@ -585,19 +600,19 @@ false</pre>
 Expr1 <input>op</input> Expr2</pre>
     <table>
       <row>
-        <cell align="left" valign="middle"><em>op</em></cell>
+        <cell align="left" valign="middle"><em>Operator</em></cell>
         <cell align="left" valign="middle"><em>Description</em></cell>
-        <cell align="left" valign="middle"><em>Argument type</em></cell>
+        <cell align="left" valign="middle"><em>Argument Type</em></cell>
       </row>
       <row>
         <cell align="left" valign="middle">+</cell>
-        <cell align="left" valign="middle">unary +</cell>
-        <cell align="left" valign="middle">number</cell>
+        <cell align="left" valign="middle">Unary +</cell>
+        <cell align="left" valign="middle">Number</cell>
       </row>
       <row>
         <cell align="left" valign="middle">-</cell>
-        <cell align="left" valign="middle">unary -</cell>
-        <cell align="left" valign="middle">number</cell>
+        <cell align="left" valign="middle">Unary -</cell>
+        <cell align="left" valign="middle">Number</cell>
       </row>
       <row>
         <cell align="left" valign="middle">+</cell>
@@ -607,62 +622,62 @@ Expr1 <input>op</input> Expr2</pre>
       <row>
         <cell align="left" valign="middle">-</cell>
         <cell align="left" valign="middle">&nbsp;</cell>
-        <cell align="left" valign="middle">number</cell>
+        <cell align="left" valign="middle">Number</cell>
       </row>
       <row>
         <cell align="left" valign="middle">*</cell>
         <cell align="left" valign="middle">&nbsp;</cell>
-        <cell align="left" valign="middle">number</cell>
+        <cell align="left" valign="middle">Number</cell>
       </row>
       <row>
         <cell align="left" valign="middle">/</cell>
-        <cell align="left" valign="middle">floating point division</cell>
-        <cell align="left" valign="middle">number</cell>
+        <cell align="left" valign="middle">Floating point division</cell>
+        <cell align="left" valign="middle">Number</cell>
       </row>
       <row>
         <cell align="left" valign="middle">bnot</cell>
-        <cell align="left" valign="middle">unary bitwise not</cell>
-        <cell align="left" valign="middle">integer</cell>
+        <cell align="left" valign="middle">Unary bitwise NOT</cell>
+        <cell align="left" valign="middle">Integer</cell>
       </row>
       <row>
         <cell align="left" valign="middle">div</cell>
-        <cell align="left" valign="middle">integer division</cell>
-        <cell align="left" valign="middle">integer</cell>
+        <cell align="left" valign="middle">Integer division</cell>
+        <cell align="left" valign="middle">Integer</cell>
       </row>
       <row>
         <cell align="left" valign="middle">rem</cell>
-        <cell align="left" valign="middle">integer remainder of X/Y</cell>
-        <cell align="left" valign="middle">integer</cell>
+        <cell align="left" valign="middle">Integer remainder of X/Y</cell>
+        <cell align="left" valign="middle">Integer</cell>
       </row>
       <row>
         <cell align="left" valign="middle">band</cell>
-        <cell align="left" valign="middle">bitwise and</cell>
-        <cell align="left" valign="middle">integer</cell>
+        <cell align="left" valign="middle">Bitwise AND</cell>
+        <cell align="left" valign="middle">Integer</cell>
       </row>
       <row>
         <cell align="left" valign="middle">bor</cell>
-        <cell align="left" valign="middle">bitwise or</cell>
-        <cell align="left" valign="middle">integer</cell>
+        <cell align="left" valign="middle">Bitwise OR</cell>
+        <cell align="left" valign="middle">Integer</cell>
       </row>
       <row>
         <cell align="left" valign="middle">bxor</cell>
-        <cell align="left" valign="middle">arithmetic bitwise xor</cell>
-        <cell align="left" valign="middle">integer</cell>
+        <cell align="left" valign="middle">Arithmetic bitwise XOR</cell>
+        <cell align="left" valign="middle">Integer</cell>
       </row>
       <row>
         <cell align="left" valign="middle">bsl</cell>
-        <cell align="left" valign="middle">arithmetic bitshift left</cell>
-        <cell align="left" valign="middle">integer</cell>
+        <cell align="left" valign="middle">Arithmetic bitshift left</cell>
+        <cell align="left" valign="middle">Integer</cell>
       </row>
       <row>
         <cell align="left" valign="middle">bsr</cell>
-        <cell align="left" valign="middle">bitshift right</cell>
-        <cell align="left" valign="middle">integer</cell>
+        <cell align="left" valign="middle">Bitshift right</cell>
+        <cell align="left" valign="middle">Integer</cell>
       </row>
       <tcaption>Arithmetic Operators.</tcaption>
     </table>
 
-    <p>Examples:</p>
+    <p><em>Examples:</em></p>
     <pre>
 1> <input>+1.</input>
 1
@@ -697,28 +712,28 @@ Expr1 <input>op</input> Expr2</pre>
 Expr1 <input>op</input> Expr2</pre>
     <table>
       <row>
-        <cell align="left" valign="middle"><em>op</em></cell>
+        <cell align="left" valign="middle"><em>Operator</em></cell>
         <cell align="left" valign="middle"><em>Description</em></cell>
       </row>
       <row>
         <cell align="left" valign="middle">not</cell>
-        <cell align="left" valign="middle">unary logical not</cell>
+        <cell align="left" valign="middle">Unary logical NOT</cell>
       </row>
       <row>
         <cell align="left" valign="middle">and</cell>
-        <cell align="left" valign="middle">logical and</cell>
+        <cell align="left" valign="middle">Logical AND</cell>
       </row>
       <row>
         <cell align="left" valign="middle">or</cell>
-        <cell align="left" valign="middle">logical or</cell>
+        <cell align="left" valign="middle">Logical OR</cell>
       </row>
       <row>
         <cell align="left" valign="middle">xor</cell>
-        <cell align="left" valign="middle">logical xor</cell>
+        <cell align="left" valign="middle">Logical XOR</cell>
       </row>
       <tcaption>Logical Operators.</tcaption>
     </table>
-    <p>Examples:</p>
+    <p><em>Examples:</em></p>
     <pre>
 1> <input>not true.</input>
 false
@@ -737,28 +752,37 @@ true
     <pre>
 Expr1 orelse Expr2
 Expr1 andalso Expr2</pre>
-    <p>Expressions where <c>Expr2</c> is evaluated only if
-      necessary. That is, <c>Expr2</c> is evaluated only if <c>Expr1</c>
-      evaluates to <c>false</c> in an <c>orelse</c> expression, or only
-      if <c>Expr1</c> evaluates to <c>true</c> in an <c>andalso</c>
-      expression. Returns either the value of <c>Expr1</c> (that is,
+    <p><c>Expr2</c> is evaluated only if
+      necessary. That is, <c>Expr2</c> is evaluated only if:</p>
+    <list type="bulleted">
+      <item><p><c>Expr1</c> evaluates to <c>false</c> in an
+      <c>orelse</c> expression.</p>
+      </item>
+    </list>
+      <p>or</p>
+    <list type="bulleted">
+      <item><p><c>Expr1</c> evaluates to <c>true</c> in an
+      <c>andalso</c> expression.</p>
+      </item>
+    </list>
+    <p>Returns either the value of <c>Expr1</c> (that is,
       <c>true</c> or <c>false</c>) or the value of <c>Expr2</c>
-      (if <c>Expr2</c> was evaluated).</p>
+      (if <c>Expr2</c> is evaluated).</p>
 
-    <p>Example 1:</p>
+    <p><em>Example 1:</em></p>
     <pre>
 case A >= -1.0 andalso math:sqrt(A+1) > B of</pre>
-    <p>This will work even if <c>A</c> is less than <c>-1.0</c>,
+    <p>This works even if <c>A</c> is less than <c>-1.0</c>,
       since in that case, <c>math:sqrt/1</c> is never evaluated.</p>
-    <p>Example 2:</p>
+    <p><em>Example 2:</em></p>
     <pre>
 OnlyOne = is_atom(L) orelse
          (is_list(L) andalso length(L) == 1),</pre>
 
-    <p>From R13A, <c>Expr2</c> is no longer required to evaluate to a
-    boolean value. As a consequence, <c>andalso</c> and <c>orelse</c>
+    <p>From Erlang/OTP R13A, <c>Expr2</c> is no longer required to evaluate to a
+    Boolean value. As a consequence, <c>andalso</c> and <c>orelse</c>
     are now tail-recursive.  For instance, the following function is
-    tail-recursive in R13A and later:</p>
+    tail-recursive in Erlang/OTP R13A and later:</p>
 
     <pre>
 all(Pred, [Hd|Tail]) ->
@@ -774,11 +798,11 @@ Expr1 ++ Expr2
 Expr1 -- Expr2</pre>
     <p>The list concatenation operator <c>++</c> appends its second
       argument to its first and returns the resulting list.</p>
-    <p>The list subtraction operator <c>--</c> produces a list which
-      is a copy of the first argument, subjected to the following
-      procedure: for each element in the second argument, the first
+    <p>The list subtraction operator <c>--</c> produces a list that
+      is a copy of the first argument. The procedure is a follows:
+      for each element in the second argument, the first
       occurrence of this element (if any) is removed.</p>
-    <p>Example:</p>
+    <p><em>Example:</em></p>
     <pre>
 1> <input>[1,2,3]++[4,5].</input>
 [1,2,3,4,5]
@@ -786,8 +810,8 @@ Expr1 -- Expr2</pre>
 [3,1,2]</pre>
 
      <warning><p>The complexity of <c>A -- B</c> is
-     proportional to <c>length(A)*length(B)</c>, meaning that it
-     will be very slow if both <c>A</c> and <c>B</c> are
+     proportional to <c>length(A)*length(B)</c>. That is, it
+     becomes very slow if both <c>A</c> and <c>B</c> are
      long lists.</p></warning>
    </section>
 
@@ -802,7 +826,7 @@ Expr1 -- Expr2</pre>
 	  </p>
 	  <code>#{ K => V }</code>
 	  <p>
-		  New maps may include multiple associations at construction by listing every
+		  New maps can include multiple associations at construction by listing every
 		  association:
 	  </p>
 	  <code>#{ K1 => V1, .., Kn => Vn }</code>
@@ -816,11 +840,11 @@ Expr1 -- Expr2</pre>
 	  </p>
 	  <p>
 		  Keys and values are separated by the <c>=></c> arrow and associations are
-		  separated by <c>,</c>.
+		  separated by a comma <c>,</c>.
 	  </p>
 
 	  <p>
-		  Examples:
+		  <em>Examples:</em>
 	  </p>
 	  <code>
 M0 = #{},                 % empty map
@@ -829,14 +853,14 @@ M2 = #{1 => 2, b => b},   % multiple associations with literals
 M3 = #{k => {A,B}},       % single association with variables
 M4 = #{{"w", 1} => f()}.  % compound key associated with an evaluated expression</code>
 	  <p>
-		  where, <c>A</c> and <c>B</c> are any expressions and <c>M0</c> through <c>M4</c>
+		  Here, <c>A</c> and <c>B</c> are any expressions and <c>M0</c> through <c>M4</c>
 		  are the resulting map terms.
 	  </p>
 	  <p>
-		  If two matching keys are declared, the latter key will take precedence.
+		  If two matching keys are declared, the latter key takes precedence.
 	  </p>
 	  <p>
-		  Example:
+		  <em>Example:</em>
 	  </p>
 
 <pre>
@@ -846,54 +870,57 @@ M4 = #{{"w", 1} => f()}.  % compound key associated with an evaluated expression
 #{1 => b, 1.0 => a}
 </pre>
 	  <p>
-		  The order in which the expressions constructing the keys and their
-		  associated values are evaluated is not defined. The syntactic order of
+		  The order in which the expressions constructing the keys (and their
+		  associated values) are evaluated is not defined. The syntactic order of
 		  the key-value pairs in the construction is of no relevance, except in
-		  the above mentioned case of two matching keys.
+		  the recently mentioned case of two matching keys.
 	  </p>
   </section>
 
   <section>
 	  <title>Updating Maps</title>
 	  <p>
-		  Updating a map has similar syntax as constructing it.
+		  Updating a map has a similar syntax as constructing it.
 	  </p>
 	  <p>
-		  An expression defining the map to be updated is put in front of the expression
-		  defining the keys to be updated and their respective values.
+		  An expression defining the map to be updated, is put in front of the expression
+		  defining the keys to be updated and their respective values:
 	  </p>
 	  <code>M#{ K => V }</code>
 	  <p>
-		  where <c>M</c> is a term of type map and <c>K</c> and <c>V</c> are any expression.
+		  Here <c>M</c> is a term of type map and <c>K</c> and <c>V</c> are any expression.
 	  </p>
 	  <p>
 		  If key <c>K</c> does not match any existing key in the map, a new association
-		  will be created from key <c>K</c> to value <c>V</c>.  If key <c>K</c> matches
-		  an existing key in map <c>M</c> its associated value will be replaced by the
-		  new value <c>V</c>. In both cases the evaluated map expression will return a new map.
+		  is created from key <c>K</c> to value <c>V</c>.
+	  </p>
+	  <p>     If key <c>K</c> matches an existing key in map <c>M</c>,
+                  its associated value
+	          is replaced by the new value <c>V</c>. In both cases, the evaluated map expression
+		  returns a new map.
 	  </p>
 	  <p>
-		  If <c>M</c> is not of type map an exception of type <c>badmap</c> is thrown.
+		  If <c>M</c> is not of type map, an exception of type <c>badmap</c> is thrown.
 	  </p>
 	  <p>
-		  To only update an existing value, the following syntax is used,
+		  To only update an existing value, the following syntax is used:
 	  </p>
 	  <code>M#{ K := V } </code>
 	  <p>
-		  where <c>M</c> is an term of type map, <c>V</c> is an expression and <c>K</c>
-		  is an expression which evaluates to an existing key in <c>M</c>.
+		  Here <c>M</c> is a term of type map, <c>V</c> is an expression and <c>K</c>
+		  is an expression that evaluates to an existing key in <c>M</c>.
 	  </p>
 	  <p>
-		  If key <c>K</c> does not match any existing keys in map <c>M</c> an exception
-		  of type <c>badarg</c> will be triggered at runtime. If a matching key <c>K</c>
-		  is present in map <c>M</c> its associated value will be replaced by the new
-		  value <c>V</c> and the evaluated map expression returns a new map.
+		  If key <c>K</c> does not match any existing keys in map <c>M</c>, an exception
+		  of type <c>badarg</c> is triggered at runtime. If a matching key <c>K</c>
+		  is present in map <c>M</c>, its associated value is replaced by the new
+		  value <c>V</c>, and the evaluated map expression returns a new map.
 	  </p>
 	  <p>
-		  If <c>M</c> is not of type map an exception of type <c>badmap</c> is thrown.
+		  If <c>M</c> is not of type map, an exception of type <c>badmap</c> is thrown.
 	  </p>
 	  <p>
-		  Examples:
+		  <em>Examples:</em>
 	  </p>
 	  <code>
 M0 = #{},
@@ -902,10 +929,10 @@ M2 = M1#{a => 1, b => 2},
 M3 = M2#{"function" => fun() -> f() end},
 M4 = M3#{a := 2, b := 3}.  % 'a' and 'b' was added in `M1` and `M2`.</code>
 	  <p>
-		  where <c>M0</c> is any map. It follows that <c>M1 .. M4</c> are maps as well.
+		  Here <c>M0</c> is any map. It follows that <c>M1 .. M4</c> are maps as well.
 	  </p>
 	  <p>
-		  More Examples:
+		  More <em>Examples:</em>
 	  </p>
 <pre>
 1> <input>M = #{1 => a}.</input>
@@ -921,83 +948,84 @@ M4 = M3#{a := 2, b := 3}.  % 'a' and 'b' was added in `M1` and `M2`.</code>
 		  As in construction, the order in which the key and value expressions
 		  are evaluated is not defined. The
 		  syntactic order of the key-value pairs in the update is of no
-		  relevance, except in the case where two keys match, in which
-		  case the latter value is used.
+		  relevance, except in the case where two keys match.
+		  In that case, the latter value is used.
 	  </p>
   </section>
 
   <section>
 	  <title>Maps in Patterns</title>
 	  <p>
-		  Matching of key-value associations from maps is done in the following way:
+		  Matching of key-value associations from maps is done as follows:
 	  </p>
 
 	  <code>#{ K := V } = M</code>
 	  <p>
-		  where <c>M</c> is any map. The key <c>K</c> has to be an expression with bound
-		  variables or a literals, and <c>V</c> can be any pattern with either bound or
+		  Here <c>M</c> is any map. The key <c>K</c> must be an expression with bound
+		  variables or literals. <c>V</c> can be any pattern with either bound or
 		  unbound variables.
 	  </p>
 	  <p>
-		  If the variable <c>V</c> is unbound, it will be bound to the value associated
-		  with the key <c>K</c>, which has to exist in the map <c>M</c>. If the variable
-		  <c>V</c> is bound, it has to match the value associated with <c>K</c> in <c>M</c>.
+		  If the variable <c>V</c> is unbound, it becomes bound to the value associated
+		  with the key <c>K</c>, which must exist in the map <c>M</c>. If the variable
+		  <c>V</c> is bound, it must match the value associated with <c>K</c> in <c>M</c>.
 	  </p>
-	  <p> Example: </p>
-<code>
+	  <p><em>Example:</em></p>
+<pre>
 1> <input>M = #{"tuple" => {1,2}}.</input>
 #{"tuple" => {1,2}}
 2> <input>#{"tuple" := {1,B}} = M.</input>
 #{"tuple" => {1,2}}
 3> <input>B.</input>
-2.</code>
+2.</pre>
 	  <p>
-		  This will bind variable <c>B</c> to integer <c>2</c>.
+		  This binds variable <c>B</c> to integer <c>2</c>.
 	  </p>
 	  <p>
-		  Similarly, multiple values from the map may be matched:
+		  Similarly, multiple values from the map can be matched:
 	  </p>
 	  <code>#{ K1 := V1, .., Kn := Vn } = M</code>
 	  <p>
-		  where keys <c>K1 .. Kn</c> are any expressions with literals or bound variables. If all
-		  keys exist in map <c>M</c> all variables in <c>V1 .. Vn</c> will be matched to the
+		  Here keys <c>K1 .. Kn</c> are any expressions with literals or bound variables. If all
+		  keys exist in map <c>M</c>, all variables in <c>V1 .. Vn</c> is  matched to the
 		  associated values of their respective keys.
 	  </p>
 	  <p>
-		  If the matching conditions are not met, the match will fail, either with
+		  If the matching conditions are not met, the match fails, either with:
 	  </p>
 	  <list>
-		  <item>
-			  a <c>badmatch</c> exception, if used in the context of the matching operator
-			  as in the example,
+		  <item><p>A <c>badmatch</c> exception.</p>
+		        <p>This is if it is used in the context of the matching operator
+			  as in the example.</p>
 		  </item>
-		  <item>
-			  or resulting in the next clause being tested in function heads and
-			  case expressions.
+		  <item><p>Or resulting in the next clause being tested in function heads and
+			  case expressions.</p>
 		  </item>
 	  </list>
 	  <p>
 		  Matching in maps only allows for <c>:=</c> as delimiters of associations.
+	  </p>
+	   <p>
 		  The order in which keys are declared in matching has no relevance.
 	  </p>
 	  <p>
-		  Duplicate keys are allowed in matching and will match each pattern associated
-		  to the keys.
+		  Duplicate keys are allowed in matching and match each pattern associated
+		  to the keys:
 	  </p>
 	  <code>#{ K := V1, K := V2 } = M</code>
 	  <p>
-		  Matching an expression against an empty map literal will match its type but
-		  no variables will be bound:
+		  Matching an expression against an empty map literal, matches its type but
+		  no variables are bound:
 	  </p>
 	  <code>#{} = Expr</code>
 	  <p>
-		  This expression will match if the expression <c>Expr</c> is of type map, otherwise
-		  it will fail with an exception <c>badmatch</c>.
+		  This expression matches if the expression <c>Expr</c> is of type map, otherwise
+		  it fails with an exception <c>badmatch</c>.
 	  </p>
 	  <section>
-		  <title>Matching syntax: Example with literals in function heads</title>
+		  <title>Matching Syntax</title>
 		  <p>
-			  Matching of literals as keys are allowed in function heads.
+			  Matching of literals as keys are allowed in function heads:
 		  </p>
 		  <code>
 %% only start if not_started
@@ -1014,17 +1042,19 @@ handle_call(change, From, #{ state := start } = S) ->
   <section>
 	  <title>Maps in Guards</title>
 	  <p>
-		  Maps are allowed in guards as long as all sub-expressions are valid guard expressions.
+		  Maps are allowed in guards as long as all subexpressions are valid guard expressions.
 	  </p>
 	  <p>
-		  Two guard BIFs handles maps:
+		  Two guard BIFs handle maps:
 	  </p>
 	  <list>
 		  <item>
 			  <seealso marker="erts:erlang#is_map/1">is_map/1</seealso>
+			   in the <c>erlang</c> module
 		  </item>
 		  <item>
 			  <seealso marker="erts:erlang#map_size/1">map_size/1</seealso>
+			   in the <c>erlang</c> module
 		  </item>
 	  </list>
 	</section>
@@ -1044,29 +1074,34 @@ Ei = Value |
      Value/TypeSpecifierList |
      Value:Size/TypeSpecifierList</pre>
     <p>Used in a bit string construction, <c>Value</c> is an expression
-    which should evaluate to an integer, float or bit string.  If the
-    expression is something else than a single literal or variable, it
-    should be enclosed in parenthesis.</p>
+    that is to evaluate to an integer, float, or bit string.  If the
+    expression is not a single literal or variable, it
+    is to be enclosed in parenthesis.</p>
 
     <p>Used in a bit string matching, <c>Value</c> must be a variable,
-    or an integer, float or string.</p>
+    or an integer, float, or string.</p>
 
-    <p>Note that, for example, using a string literal as in
+    <p>Notice that, for example, using a string literal as in
     <c><![CDATA[<<"abc">>]]></c> is syntactic sugar for
     <c><![CDATA[<<$a,$b,$c>>]]></c>.</p>
 
     <p>Used in a bit string construction, <c>Size</c> is an expression
-    which should evaluate to an integer.</p>
+    that is to evaluate to an integer.</p>
     
-    <p>Used in a bit string matching, <c>Size</c> must be an integer or a 
+    <p>Used in a bit string matching, <c>Size</c> must be an integer, or a
     variable bound to an integer.</p>
 
     <p>The value of <c>Size</c> specifies the size of the segment in
     units (see below). The default value depends on the type (see
-    below). For <c>integer</c> it is 8, for
-    <c>float</c> it is 64, for <c>binary</c> and <c>bitstring</c> it is
-    the whole binary or bit string. In matching, this default value is only
-    valid for the very last element. All other bit string or binary 
+    below):</p>
+    <list type="bulleted">
+      <item>For <c>integer</c> it is 8.</item>
+      <item>For <c>float</c> it is 64.</item>
+      <item>For <c>binary</c> and <c>bitstring</c> it is
+      the whole binary or bit string.</item>
+    </list>
+    <p>In matching, this default value is only
+    valid for the last element. All other bit string or binary
     elements in the matching must have a size specification.</p>
 
     <p>For the <c>utf8</c>, <c>utf16</c>, and <c>utf32</c> types,
@@ -1090,7 +1125,7 @@ Ei = Value |
       The default is <c>unsigned</c>.</item>
 
       <tag><c>Endianness</c>= <c>big</c> | <c>little</c> | <c>native</c></tag>
-      <item>Native-endian means that the endianness will be resolved at load
+      <item>Native-endian means that the endianness is resolved at load
        time to be either big-endian or little-endian, depending on
        what is native for the CPU that the Erlang machine is run on.
        Endianness only matters when the Type is either <c>integer</c>,
@@ -1099,7 +1134,7 @@ Ei = Value |
 
       <tag><c>Unit</c>= <c>unit:IntegerLiteral</c></tag>
       <item>The allowed range is 1..256. Defaults to 1 for <c>integer</c>,
-       <c>float</c> and <c>bitstring</c>, and to 8 for <c>binary</c>.
+       <c>float</c>, and <c>bitstring</c>, and to 8 for <c>binary</c>.
        No unit specifier must be given for the types 
        <c>utf8</c>, <c>utf16</c>, and <c>utf32</c>.
        </item>
@@ -1110,8 +1145,8 @@ Ei = Value |
 
     <note><p>When constructing binaries, if the size <c>N</c> of an integer
     segment is too small to contain the given integer, the most significant
-    bits of the integer will be silently discarded and only the <c>N</c> least
-    significant bits will be put into the binary.</p></note>
+    bits of the integer are silently discarded and only the <c>N</c> least
+    significant bits are put into the binary.</p></note>
 
     <p>The types <c>utf8</c>, <c>utf16</c>, and <c>utf32</c> specifies
     encoding/decoding of the <em>Unicode Transformation Format</em>s UTF-8, UTF-16,
@@ -1120,39 +1155,39 @@ Ei = Value |
     <p>When constructing a segment of a <c>utf</c> type, <c>Value</c>
     must be an integer in the range 0..16#D7FF or
     16#E000....16#10FFFF. Construction
-    will fail with a <c>badarg</c> exception if <c>Value</c> is
+    fails with a <c>badarg</c> exception if <c>Value</c> is
     outside the allowed ranges. The size of the resulting binary
-    segment depends on the type and/or <c>Value</c>. For <c>utf8</c>,
-    <c>Value</c> will be encoded in 1 through 4 bytes. For
-    <c>utf16</c>, <c>Value</c> will be encoded in 2 or 4
-    bytes. Finally, for <c>utf32</c>, <c>Value</c> will always be
-    encoded in 4 bytes.</p>
+    segment depends on the type or <c>Value</c>, or both:</p>
+     <list type="bulleted">
+      <item>For <c>utf8</c>, <c>Value</c> is encoded in 1-4 bytes.</item>
+      <item>For <c>utf16</c>, <c>Value</c> is encoded in 2 or 4 bytes.</item>
+      <item>For <c>utf32</c>, <c>Value</c> is always be encoded in 4 bytes.</item>
+    </list>
 
-    <p>When constructing, a literal string may be given followed
+    <p>When constructing, a literal string can be given followed
     by one of the UTF types, for example: <c><![CDATA[<<"abc"/utf8>>]]></c>
-    which is syntatic sugar for 
+    which is syntactic sugar for
     <c><![CDATA[<<$a/utf8,$b/utf8,$c/utf8>>]]></c>.</p>
 
-    <p>A successful match of a segment of a <c>utf</c> type results
+    <p>A successful match of a segment of a <c>utf</c> type, results
     in an integer in the range 0..16#D7FF or  16#E000..16#10FFFF.
-    The match will fail if returned value
-    would fall outside those ranges.</p>
+    The match fails if the returned value falls outside those ranges.</p>
 
-    <p>A segment of type <c>utf8</c> will match 1 to 4 bytes in the binary,
+    <p>A segment of type <c>utf8</c> matches 1-4 bytes in the binary,
     if the binary at the match position contains a valid UTF-8 sequence.
     (See RFC-3629 or the Unicode standard.)</p>
 
-    <p>A segment of type <c>utf16</c> may match 2 or 4 bytes in the binary.
-    The match will fail if the binary at the match position does not contain
+    <p>A segment of type <c>utf16</c> can match 2 or 4 bytes in the binary.
+    The match fails if the binary at the match position does not contain
     a legal UTF-16 encoding of a Unicode code point. (See RFC-2781 or
     the Unicode standard.)</p>
 
-    <p>A segment of type <c>utf32</c> may match 4 bytes in the binary in the
-    same way as an <c>integer</c> segment matching 32 bits.
-    The match will fail if the resulting integer is outside the legal ranges
+    <p>A segment of type <c>utf32</c> can match 4 bytes in the binary in the
+    same way as an <c>integer</c> segment matches 32 bits.
+    The match fails if the resulting integer is outside the legal ranges
     mentioned above.</p>
 
-    <p>Examples:</p>
+    <p><em>Examples:</em></p>
     <pre>
 1> <input>Bin1 = &lt;&lt;1,17,42&gt;&gt;.</input>
 &lt;&lt;1,17,42&gt;&gt;
@@ -1181,11 +1216,13 @@ Ei = Value |
 13> <input>&lt;&lt;1024/utf8&gt;&gt;.</input>
 &lt;&lt;208,128&gt;&gt;
 </pre>
-    <p>Note that bit string patterns cannot be nested.</p>
-    <p>Note also that "<c><![CDATA[B=<<1>>]]></c>" is interpreted as
+    <p>Notice that bit string patterns cannot be nested.</p>
+    <p>Notice also that "<c><![CDATA[B=<<1>>]]></c>" is interpreted as
       "<c><![CDATA[B =<<1>>]]></c>" which is a syntax error. The correct way is
       to write a space after '=': "<c><![CDATA[B= <<1>>]]></c>.</p>
-    <p>More examples can be found in <em>Programming Examples</em>.</p>
+    <p>More examples are provided in
+    <seealso marker="doc/programming_examples:bit_syntax">
+    Programming Examples</seealso>.</p>
   </section>
 
   <section>
@@ -1200,16 +1237,16 @@ fun
               BodyK
 end</pre>
     <p>A fun expression begins with the keyword <c>fun</c> and ends
-      with the keyword <c>end</c>. Between them should be a function
+      with the keyword <c>end</c>. Between them is to be a function
       declaration, similar to a
       <seealso marker="functions#syntax">regular function declaration</seealso>,
-      except that the function name is optional and should be a variable if
+      except that the function name is optional and is to be a variable, if
       any.</p>
     <p>Variables in a fun head shadow the function name and both shadow
-      variables in the function clause surrounding the fun expression, and
-      variables bound in a fun body are local to the fun body.</p>
+      variables in the function clause surrounding the fun expression.
+      Variables bound in a fun body are local to the fun body.</p>
     <p>The return value of the expression is the resulting fun.</p>
-    <p>Examples:</p>
+    <p><em>Examples:</em></p>
     <pre>
 1> <input>Fun1 = fun (X) -> X+1 end.</input>
 #Fun&lt;erl_eval.6.39074546&gt;
@@ -1232,15 +1269,17 @@ fun Module:Name/Arity</pre>
       syntactic sugar for:</p>
     <pre>
 fun (Arg1,...,ArgN) -> Name(Arg1,...,ArgN) end</pre>
-    <p>In <c>Module:Name/Arity</c>, <c>Module</c> and <c>Name</c> are atoms
-      and <c>Arity</c> is an integer. Starting from the R15 release,
-      <c>Module</c>, <c>Name</c>, and <c>Arity</c> may also be variables.
-      A fun defined in this way will refer to the function <c>Name</c>
+    <p>In <c>Module:Name/Arity</c>, <c>Module</c>, and <c>Name</c> are atoms
+      and <c>Arity</c> is an integer. Starting from Erlang/OTP R15,
+      <c>Module</c>, <c>Name</c>, and <c>Arity</c> can also be variables.
+      A fun defined in this way refers to the function <c>Name</c>
       with arity <c>Arity</c> in the <em>latest</em> version of module
-      <c>Module</c>. A fun defined in this way will not be dependent on
-      the code for module in which it is defined.
+      <c>Module</c>. A fun defined in this way is not dependent on
+      the code for the module in which it is defined.
       </p>
-    <p>More examples can be found in <em>Programming Examples</em>.</p>
+    <p>More examples are provided in
+      <seealso marker="doc/programming_examples:funs">
+      Programming Examples</seealso>.</p>
   </section>
 
   <section>
@@ -1250,23 +1289,26 @@ fun (Arg1,...,ArgN) -> Name(Arg1,...,ArgN) end</pre>
 catch Expr</code>
     <p>Returns the value of <c>Expr</c> unless an exception
       occurs during the evaluation. In that case, the exception is
-      caught. For exceptions of class <c>error</c>, 
-      that is run-time errors: <c>{'EXIT',{Reason,Stack}}</c> 
-      is returned. For exceptions of class <c>exit</c>, that is
-      the code called <c>exit(Term)</c>: <c>{'EXIT',Term}</c> is returned. 
-      For exceptions of class <c>throw</c>, that is
-      the code called <c>throw(Term)</c>: <c>Term</c> is returned.</p>
+      caught.</p>
+    <p>For exceptions of class <c>error</c>, that is,
+      run-time errors,
+      <c>{'EXIT',{Reason,Stack}}</c> is returned.</p>
+    <p>For exceptions of class <c>exit</c>, that is,
+      the code called <c>exit(Term)</c>,
+      <c>{'EXIT',Term}</c> is returned.</p>
+    <p>For exceptions of class <c>throw</c>, that is
+      the code called <c>throw(Term)</c>,
+      <c>Term</c> is returned.</p>
     <p><c>Reason</c> depends on the type of error that occurred, and
       <c>Stack</c> is the stack of recent function calls, see
-      <seealso marker="errors#exit_reasons">Errors and Error Handling</seealso>.</p>
-    <p>Examples:</p>
-    <p></p>
+      <seealso marker="errors#exit_reasons">Exit Reasons</seealso>.</p>
+    <p><em>Examples:</em></p>
     <pre>
 1> <input>catch 1+2.</input>
 3
 2> <input>catch 1+a.</input>
 {'EXIT',{badarith,[...]}}</pre>
-    <p>Note that <c>catch</c> has low precedence and catch
+    <p>Notice that <c>catch</c> has low precedence and catch
       subexpressions often needs to be enclosed in a block
       expression or in parenthesis:</p>
     <pre>
@@ -1275,13 +1317,14 @@ catch Expr</code>
 4> <input>A = (catch 1+2).</input>
 3</pre>
     <p>The BIF <c>throw(Any)</c> can be used for non-local return from
-      a function. It must be evaluated within a <c>catch</c>, which will
-      return the value <c>Any</c>. Example:</p>
+      a function. It must be evaluated within a <c>catch</c>, which
+      returns the value <c>Any</c>.</p>
+      <p><em>Example:</em></p>
     <pre>
 5> <input>catch throw(hello).</input>
 hello</pre>
     <p>If <c>throw/1</c> is not evaluated within a catch, a
-      <c>nocatch</c> run-time error will occur.</p>
+      <c>nocatch</c> run-time error occurs.</p>
   </section>
 
   <section>
@@ -1297,14 +1340,17 @@ catch
 end</code>
     <p>This is an enhancement of
       <seealso marker="#catch">catch</seealso> that appeared in
-      Erlang 5.4/OTP-R10B. It gives the possibility do distinguish
-      between different exception classes, and to choose to handle only
-      the desired ones, passing the others on to an enclosing
-      <c>try</c> or <c>catch</c> or to default error handling.</p>
-    <p>Note that although the keyword <c>catch</c> is used in
+      Erlang 5.4/OTP R10B. It gives the possibility to:</p>
+    <list type="bulleted">
+      <item>Distinguish between different exception classes.</item>
+      <item>Choose to handle only the desired ones.</item>
+      <item>Passing the others on to an enclosing
+      <c>try</c> or <c>catch</c>, or to default error handling.</item>
+    </list>
+    <p>Notice that although the keyword <c>catch</c> is used in
       the <c>try</c> expression, there is not a <c>catch</c> expression
       within the <c>try</c> expression.</p>
-    <p>Returns the value of <c>Exprs</c> (a sequence of expressions
+    <p>It returns the value of <c>Exprs</c> (a sequence of expressions
       <c>Expr1, ..., ExprN</c>) unless an exception occurs during
       the evaluation. In that case the exception is caught and
       the patterns <c>ExceptionPattern</c> with the right exception
@@ -1318,7 +1364,7 @@ end</code>
       <c>Class</c> with a true guard sequence, the exception is passed
       on as if <c>Exprs</c> had not been enclosed in a <c>try</c>
       expression.</p>
-    <p>If an exception occurs during evaluation of <c>ExceptionBody</c>
+    <p>If an exception occurs during evaluation of <c>ExceptionBody</c>,
       it is not caught.</p>
     <p>The <c>try</c> expression can have an <c>of</c>
       section:
@@ -1341,7 +1387,7 @@ end</code>
       the patterns <c>Pattern</c> are sequentially matched against
       the result in the same way as for a
       <seealso marker="#case">case</seealso> expression, except that if
-      the matching fails, a <c>try_clause</c> run-time error will occur.</p>
+      the matching fails, a <c>try_clause</c> run-time error occurs.</p>
     <p>An exception occurring during the evaluation of <c>Body</c> is
       not caught.</p>
     <p>The <c>try</c> expression can also be augmented with an
@@ -1364,7 +1410,7 @@ after
     AfterBody
 end</code>
     <p><c>AfterBody</c> is evaluated after either <c>Body</c> or
-      <c>ExceptionBody</c> no matter which one. The evaluated value of
+      <c>ExceptionBody</c>, no matter which one. The evaluated value of
       <c>AfterBody</c> is lost; the return value of the <c>try</c>
       expression is the same with an <c>after</c> section as without.</p>
     <p>Even if an exception occurs during evaluation of <c>Body</c> or
@@ -1373,13 +1419,13 @@ end</code>
       evaluated, so the exception from the <c>try</c> expression is
       the same with an <c>after</c> section as without.</p>
     <p>If an exception occurs during evaluation of <c>AfterBody</c>
-      itself it is not caught, so if <c>AfterBody</c> is evaluated after
-      an exception in <c>Exprs</c>, <c>Body</c> or <c>ExceptionBody</c>,
+      itself, it is not caught. So if <c>AfterBody</c> is evaluated after
+      an exception in <c>Exprs</c>, <c>Body</c>, or <c>ExceptionBody</c>,
       that exception is lost and masked by the exception in
       <c>AfterBody</c>.</p>
-    <p>The <c>of</c>, <c>catch</c> and <c>after</c> sections are all
+    <p>The <c>of</c>, <c>catch</c>, and <c>after</c> sections are all
       optional, as long as there is at least a <c>catch</c> or an
-      <c>after</c> section, so the following are valid <c>try</c>
+      <c>after</c> section. So the following are valid <c>try</c>
       expressions:</p>
     <code type="none">
 try Exprs of 
@@ -1398,9 +1444,9 @@ after
 end
 
 try Exprs after AfterBody end</code>
-    <p>Example of using <c>after</c>, this code will close the file
+    <p>Next is an example of using <c>after</c>. This closes the file,
       even in the event of exceptions in <c>file:read/2</c> or in
-      <c>binary_to_term/1</c>, and exceptions will be the same as
+      <c>binary_to_term/1</c>. The exceptions are the same as
       without the <c>try</c>...<c>after</c>...<c>end</c> expression:</p>
     <code type="none">
 termize_file(Name) ->
@@ -1411,7 +1457,7 @@ termize_file(Name) ->
     after
         file:close(F)
     end.</code>
-    <p>Example: Using <c>try</c> to emulate <c>catch Expr</c>.</p>
+    <p>Next is an example of using <c>try</c> to emulate <c>catch Expr</c>:</p>
     <code type="none">
 try Expr
 catch
@@ -1427,7 +1473,7 @@ end</code>
 (Expr)</pre>
     <p>Parenthesized expressions are useful to override
       <seealso marker="#prec">operator precedences</seealso>,
-      for example in arithmetic expressions:</p>
+      for example, in arithmetic expressions:</p>
     <pre>
 1> <input>1 + 2 * 3.</input>
 7
@@ -1451,7 +1497,7 @@ end</pre>
   <section>
     <marker id="lcs"></marker>
     <title>List Comprehensions</title>
-    <p>List comprehensions are a feature of many modern functional
+    <p>List comprehensions is a feature of many modern functional
       programming languages. Subject to certain rules, they provide a
       succinct notation for generating elements in a list.</p>
     <p>List comprehensions are analogous to set comprehensions in
@@ -1461,32 +1507,34 @@ end</pre>
     <p>List comprehensions are written with the following syntax:</p>
     <pre>
 [Expr || Qualifier1,...,QualifierN]</pre>
-    <p><c>Expr</c> is an arbitrary expression, and each
+    <p>Here, <c>Expr</c> is an arbitrary expression, and each
       <c>Qualifier</c> is either a generator or a filter.</p>
     <list type="bulleted">
       <item>A <em>generator</em> is written as:      <br></br>
 
        &nbsp;&nbsp;<c><![CDATA[Pattern <- ListExpr]]></c>.      <br></br>
-<c>ListExpr</c> must be an expression which evaluates to a
+<c>ListExpr</c> must be an expression, which evaluates to a
        list of terms.</item>
 <item>A <em>bit string generator</em> is written as:      <br></br>
 
        &nbsp;&nbsp;<c><![CDATA[BitstringPattern <= BitStringExpr]]></c>.      <br></br>
-<c>BitStringExpr</c> must be an expression which evaluates to a
+<c>BitStringExpr</c> must be an expression, which evaluates to a
        bitstring.</item>
-      <item>A <em>filter</em> is an expression which evaluates to
+      <item>A <em>filter</em> is an expression, which evaluates to
       <c>true</c> or <c>false</c>.</item>
     </list>
-    <p>The variables in the generator patterns shadow variables in the function
-    clause surrounding the list comprehensions.</p> <p>A list comprehension
+    <p>The variables in the generator patterns, shadow variables in the function
+    clause, surrounding the list comprehensions.</p> <p>A list comprehension
     returns a list, where the elements are the result of evaluating <c>Expr</c>
     for each combination of generator list elements and bit string generator
-    elements for which all filters are true.</p> <p></p> <p>Example:</p>
+    elements, for which all filters are true.</p>
+    <p><em>Example:</em></p>
     <pre>
 1> <input>[X*2 || X &lt;- [1,2,3]].</input>
 [2,4,6]</pre>
-    <p>More examples can be found in <em>Programming Examples</em>.</p>
-  
+    <p>More examples are provoded in
+    <seealso marker="doc/programming_examples:list_comprehensions">
+    Programming Examples.</seealso></p>
 
   </section>
 
@@ -1500,34 +1548,35 @@ end</pre>
     the following syntax:</p>
     <pre>
 &lt;&lt; BitString || Qualifier1,...,QualifierN &gt;&gt;</pre>
-    <p><c>BitString</c> is a bit string expression, and each
+    <p>Here, <c>BitString</c> is a bit string expression and each
       <c>Qualifier</c> is either a generator, a bit string generator or a filter.</p>
     <list type="bulleted">
  <item>A <em>generator</em> is written as:      <br></br>
       &nbsp;&nbsp;<c><![CDATA[Pattern <- ListExpr]]></c>.      <br></br>
-       <c>ListExpr</c> must be an expression which evaluates to a
+       <c>ListExpr</c> must be an expression that evaluates to a
        list of terms.</item>
       <item>A <em>bit string generator</em> is written as:      <br></br>
 
        &nbsp;&nbsp;<c><![CDATA[BitstringPattern <= BitStringExpr]]></c>.      <br></br>
-<c>BitStringExpr</c> must be an expression which evaluates to a
+<c>BitStringExpr</c> must be an expression that evaluates to a
        bitstring.</item>
-      <item>A <em>filter</em> is an expression which evaluates to
+      <item>A <em>filter</em> is an expression that evaluates to
       <c>true</c> or <c>false</c>.</item>
     </list>
-    <p>The variables in the generator patterns shadow variables in
-      the function clause surrounding the bit string comprehensions.</p>
+    <p>The variables in the generator patterns, shadow variables in
+      the function clause, surrounding the bit string comprehensions.</p>
     <p>A bit string comprehension returns a bit string, which is 
       created by concatenating the results of evaluating <c>BitString</c> 
-      for each combination of bit string generator elements for which all 
+      for each combination of bit string generator elements, for which all
       filters are true.</p>
-    <p></p>
-    <p>Example:</p>
+    <p><em>Example:</em></p>
     <pre>
-1> <input>&lt;&lt; &lt;&lt; (X*2) &gt;&gt; || 
+1> <input>&lt;&lt; &lt;&lt; (X*2) &gt;&gt; ||
 &lt;&lt;X&gt;&gt; &lt;= &lt;&lt; 1,2,3 &gt;&gt; &gt;&gt;.</input>
 &lt;&lt;2,4,6&gt;&gt;</pre>
-    <p>More examples can be found in <em>Programming Examples</em>.</p>
+    <p>More examples are provided in
+    <seealso marker="doc/programming_examples:bit_syntax">
+    Programming Examples.</seealso></p>
   </section>
 
   <section>
@@ -1536,27 +1585,27 @@ end</pre>
 
     <p>A <em>guard sequence</em> is a sequence of guards, separated
       by semicolon (;). The guard sequence is true if at least one of
-      the guards is true. (The remaining guards, if any, will not be
-      evaluated.)<br></br>
-<c>Guard1;...;GuardK</c></p>
+      the guards is true. (The remaining guards, if any, are not
+      evaluated.)</p>
+    <p><c>Guard1;...;GuardK</c></p>
     <p>A <em>guard</em> is a sequence of guard expressions, separated
       by comma (,). The guard is true if all guard expressions
-      evaluate to <c>true</c>.<br></br>
-<c>GuardExpr1,...,GuardExprN</c></p>
+      evaluate to <c>true</c>.</p>
+    <p><c>GuardExpr1,...,GuardExprN</c></p>
     <p>The set of valid <em>guard expressions</em> (sometimes called
       guard tests) is a subset of the set of valid Erlang expressions.
       The reason for restricting the set of valid expressions is that
       evaluation of a guard expression must be guaranteed to be free
-      of side effects. Valid guard expressions are:</p>
+      of side effects. Valid guard expressions are the following:</p>
     <list type="bulleted">
-      <item>the atom <c>true</c>,</item>
-      <item>other constants (terms and bound variables), all regarded
-       as false,</item>
-      <item>calls to the BIFs specified below,</item>
-      <item>term comparisons,</item>
-      <item>arithmetic expressions,</item>
-      <item>boolean expressions, and</item>
-      <item>short-circuit expressions (<c>andalso</c>/<c>orelse</c>).</item>
+      <item>The atom <c>true</c></item>
+      <item>Other constants (terms and bound variables), all regarded
+       as false</item>
+      <item>Calls to the BIFs specified in table <c>Type Test BIFs</c></item>
+      <item>Term comparisons</item>
+      <item>Arithmetic expressions</item>
+      <item>Boolean expressions</item>
+      <item>Short-circuit expressions (<c>andalso</c>/<c>orelse</c>)</item>
     </list>
     <table>
       <row>
@@ -1610,13 +1659,13 @@ end</pre>
       <row>
         <cell align="left" valign="middle"><c>is_tuple/1</c></cell>
       </row>
-      <tcaption>Type Test BIFs.</tcaption>
+      <tcaption>Type Test BIFs</tcaption>
     </table>
-    <p>Note that most type test BIFs have older equivalents, without
+    <p>Notice that most type test BIFs have older equivalents, without
       the <c>is_</c> prefix. These old BIFs are retained for backwards
-      compatibility only and should not be used in new code. They are
+      compatibility only and are not to be used in new code. They are
       also only allowed at top level. For example, they are not allowed
-      in boolean expressions in guards.</p>
+      in Boolean expressions in guards.</p>
     <table>
       <row>
         <cell align="left" valign="middle"><c>abs(Number)</c></cell>
@@ -1666,14 +1715,14 @@ end</pre>
       <row>
         <cell align="left" valign="middle"><c>tuple_size(Tuple)</c></cell>
       </row>
-      <tcaption>Other BIFs Allowed in Guard Expressions.</tcaption>
+      <tcaption>Other BIFs Allowed in Guard Expressions</tcaption>
     </table>
 
-    <p>If an arithmetic expression, a boolean expression, a
+    <p>If an arithmetic expression, a Boolean expression, a
     short-circuit expression, or a call to a guard BIF fails (because
     of invalid arguments), the entire guard fails. If the guard was
     part of a guard sequence, the next guard in the sequence (that is,
-    the guard following the next semicolon) will be evaluated.</p>
+    the guard following the next semicolon) is evaluated.</p>
 
   </section>
 
@@ -1726,12 +1775,13 @@ end</pre>
         <cell align="left" valign="middle">catch</cell>
         <cell align="left" valign="middle">&nbsp;</cell>
       </row>
-      <tcaption>Operator Precedence.</tcaption>
+      <tcaption>Operator Precedence</tcaption>
     </table>
     <p>When evaluating an expression, the operator with the highest
       priority is evaluated first. Operators with the same priority
-      are evaluated according to their associativity. Example:
-      The left associative arithmetic operators are evaluated left to
+      are evaluated according to their associativity.</p>
+      <p><em>Example:</em></p>
+      <p>The left associative arithmetic operators are evaluated left to
       right:</p>
     <pre>
 <input>6 + 5 * 4 - 3 / 2</input> evaluates to
diff --git a/system/doc/reference_manual/functions.xml b/system/doc/reference_manual/functions.xml
index 9498ef1402..8cf4da1b8b 100644
--- a/system/doc/reference_manual/functions.xml
+++ b/system/doc/reference_manual/functions.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2003</year><year>2013</year>
+      <year>2003</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -38,7 +38,7 @@
       clause body, separated by <c>-></c>.</p>
     <p>A clause <em>head</em> consists of the function name, an
       argument list, and an optional guard sequence
-      beginning with the keyword <c>when</c>.</p>
+      beginning with the keyword <c>when</c>:</p>
     <pre>
 Name(Pattern11,...,Pattern1N) [when GuardSeq1] ->
     Body1;
@@ -48,9 +48,9 @@ Name(PatternK1,...,PatternKN) [when GuardSeqK] ->
     <p>The function name is an atom. Each argument is a pattern.</p>
     <p>The number of arguments <c>N</c> is the <em>arity</em> of
       the function. A function is uniquely defined by the module name,
-      function name and arity. That is, two functions with the same
+      function name, and arity. That is, two functions with the same
       name and in the same module, but with different arities are two
-      completely different functions.</p>
+      different functions.</p>
     <p>A function named <c>f</c> in the module <c>m</c> and with arity
       <c>N</c> is often denoted as <c>m:f/N</c>.</p>
     <p>A clause <em>body</em> consists of a sequence of expressions
@@ -60,8 +60,8 @@ Expr1,
 ...,
 ExprN</pre>
     <p>Valid Erlang expressions and guard sequences are described in
-      <seealso marker="expressions">Erlang Expressions</seealso>.</p>
-    <p>Example:</p>
+      <seealso marker="expressions">Expressions</seealso>.</p>
+    <p><em>Example:</em></p>
     <pre>
 fact(N) when N>0 ->  % first clause head
     N * fact(N-1);   % first clause body
@@ -75,23 +75,23 @@ fact(0) ->           % second clause head
     <title>Function Evaluation</title>
     <p>When a function <c>m:f/N</c> is called, first the code for
       the function is located. If the function cannot be found, an
-      <c>undef</c> run-time error will occur. Note that the function
+      <c>undef</c> runtime error occurs. Notice that the function
       must be exported to be visible outside the module it is defined
       in.</p>
     <p>If the function is found, the function clauses are scanned
-      sequentially until a clause is found that fulfills the following
-      two conditions:</p>
+      sequentially until a clause is found that fulfills both of
+      the following two conditions:</p>
     <list type="ordered">
-      <item>the patterns in the clause head can be successfully
-       matched against the given arguments, and</item>
-      <item>the guard sequence, if any, is true.</item>
+      <item>The patterns in the clause head can be successfully
+       matched against the given arguments.</item>
+      <item>The guard sequence, if any, is true.</item>
     </list>
     <p>If such a clause cannot be found, a <c>function_clause</c>
-      run-time error will occur.</p>
+      runtime error occurs.</p>
     <p>If such a clause is found, the corresponding clause body is
       evaluated. That is, the expressions in the body are evaluated
       sequentially and the value of the last expression is returned.</p>
-    <p>Example: Consider the function <c>fact</c>:</p>
+    <p>Consider the function <c>fact</c>:</p>
     <pre>
 -module(m).
 -export([fact/1]).
@@ -100,17 +100,17 @@ fact(N) when N>0 ->
     N * fact(N-1);
 fact(0) ->
     1.</pre>
-    <p>Assume we want to calculate factorial for 1:</p>
+    <p>Assume that you want to calculate the factorial for 1:</p>
     <pre>
 1> <input>m:fact(1).</input></pre>
     <p>Evaluation starts at the first clause. The pattern <c>N</c> is
-      matched against the argument 1. The matching succeeds and
-      the guard (<c>N>0</c>) is true, thus <c>N</c> is bound to 1 and
+      matched against argument 1. The matching succeeds and
+      the guard (<c>N>0</c>) is true, thus <c>N</c> is bound to 1, and
       the corresponding body is evaluated:</p>
     <pre>
 <input>N * fact(N-1)</input> => (N is bound to 1)
 <input>1 * fact(0)</input></pre>
-    <p>Now <c>fact(0)</c> is called and the function clauses are
+    <p>Now, <c>fact(0)</c> is called, and the function clauses are
       scanned sequentially again. First, the pattern <c>N</c> is
       matched against 0. The matching succeeds, but the guard
       (<c>N>0</c>) is false. Second, the pattern 0 is matched against
@@ -121,48 +121,51 @@ fact(0) ->
 <input>1</input></pre>
     <p>Evaluation has succeed and <c>m:fact(1)</c> returns 1.</p>
     <p>If <c>m:fact/1</c> is called with a negative number as
-      argument, no clause head will match. A <c>function_clause</c>
-      run-time error will occur.</p>
+      argument, no clause head matches. A <c>function_clause</c>
+      runtime error occurs.</p>
   </section>
 
   <section>
     <title>Tail recursion</title>
     <p>If the last expression of a function body is a function call,
-      a <em>tail recursive</em> call is done so that no system
-      resources for example call stack are consumed. This means
-      that an infinite loop can be done if it uses tail recursive
+      a <em>tail recursive</em> call is done.
+      This is to ensure that no system
+      resources, for example, call stack, are consumed. This means
+      that an infinite loop can be done if it uses tail-recursive
       calls.</p>
-    <p>Example:</p>
+    <p><em>Example:</em></p>
     <pre>
 loop(N) ->
     io:format("~w~n", [N]),
     loop(N+1).</pre>
-    <p>As a counter-example see the factorial example above 
-      that is not tail recursive since a multiplication is done
+    <p>The earlier factorial example can act as a counter-example.
+      It is not tail-recursive, since a multiplication is done
       on the result of the recursive call to <c>fact(N-1)</c>.</p>
   </section>
 
   <section>
-    <title>Built-In Functions, BIFs</title>
-    <p><em>Built-in functions</em>, BIFs, are implemented in C code in
-      the runtime system and do things that are difficult or impossible
-      to implement in Erlang. Most of the built-in functions belong
-      to the module <c>erlang</c> but there are also built-in functions
+    <title>Built-In Functions (BIFs)</title>
+    <p>BIFs are implemented in C code in
+      the runtime system. BIFs do things that are difficult or impossible
+      to implement in Erlang. Most of the BIFs belong
+      to the module <c>erlang</c> but there are also BIFs
       belonging to a few other modules, for example <c>lists</c> and
       <c>ets</c>.</p>
-    <p>The most commonly used BIFs belonging to <c>erlang</c> are
-      <em>auto-imported</em>, they do not need to be prefixed with
-      the module name. Which BIFs are auto-imported is specified in
-      <c>erlang(3)</c>. For example, standard type conversion BIFs like
+    <p>The most commonly used BIFs belonging to <c>erlang(3)</c> are
+      <em>auto-imported</em>. They do not need to be prefixed with
+      the module name. Which BIFs that are auto-imported is specified in the
+      <seealso marker="erts:erlang">erlang(3)</seealso> module in ERTS.
+      For example, standard-type conversion BIFs like
       <c>atom_to_list</c> and BIFs allowed in guards can be called
-      without specifying the module name. Examples:</p>
+      without specifying the module name.</p>
+      <p><em>Examples:</em></p>
     <pre>
 1> <input>tuple_size({a,b,c}).</input>
 3
 2> <input>atom_to_list('Erlang').</input>
 "Erlang"</pre>
-    <p>Note that normally it is the set of auto-imported built-in
-      functions that is referred to when talking about 'BIFs'.</p>
+    <p>Notice that it is normally the set of auto-imported BIFs
+      that are referred to when talking about 'BIFs'.</p>
   </section>
 </chapter>
 
diff --git a/system/doc/reference_manual/introduction.xml b/system/doc/reference_manual/introduction.xml
index 36bec17825..ee8b82e60f 100644
--- a/system/doc/reference_manual/introduction.xml
+++ b/system/doc/reference_manual/introduction.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2003</year><year>2014</year>
+      <year>2003</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -28,20 +28,38 @@
     <rev></rev>
     <file>introduction.xml</file>
   </header>
+  <marker id="erlang ref manual"></marker>
+
+  <p>This section is the Erlang reference manual. It describes the
+    Erlang programming language. </p>
 
   <section>
     <title>Purpose</title>
-    <p>This reference manual describes the Erlang programming
-      language. The focus is on the language itself, not
-      the implementation. The language constructs are described in
-      text and with examples rather than formally specified, with
-      the intention to make the manual more readable.
-      The manual is not intended as a tutorial.</p>
-    <p>Information about this implementation of Erlang can be found, for
-      example, in <em>System Principles</em> (starting and stopping,
-      boot scripts, code loading, error logging, creating target
-      systems), <em>Efficiency Guide</em> (memory consumption, system
-      limits) and <em>ERTS User's Guide</em> (crash dumps, drivers).</p>
+    <p>The focus of the Erlang reference manual is on the language itself,
+      not the implementation of it. The language constructs are described in
+      text and with examples rather than formally specified. This is
+      to make the manual more readable.
+      The Erlang reference manual is not intended as a tutorial.</p>
+    <p>Information about implementation of Erlang can, for example, be found,
+      in the following:</p>
+    <list type="bulleted">
+      <item><p><seealso marker="doc/system_principles:system_principles">
+      System Principles</seealso></p>
+      <p>Starting and stopping, boot scripts, code loading,
+      <seealso marker="doc/system_principles:error_logging">
+      error logging</seealso>,
+      <seealso marker="doc/system_principles:create_target">
+      creating target systems</seealso></p>
+      </item>
+      <item><p><seealso marker="doc/efficiency_guide:advanced">
+      Efficiency Guide</seealso></p>
+      <p>Memory consumption, system limits</p>
+      </item>
+      <item><p>ERTS User's Guide</p>
+      <p><seealso marker="erts:crash_dump">Crash dumps</seealso>,
+      <seealso marker="erts:driver">drivers</seealso></p>
+      </item>
+    </list>
   </section>
 
   <section>
@@ -53,13 +71,13 @@
 
   <section>
     <title>Document Conventions</title>
-    <p>In the document, the following terminology is used:</p>
+    <p>In this section, the following terminology is used:</p>
     <list type="bulleted">
       <item>A <em>sequence</em> is one or more items. For example, a
        clause body consists of a sequence of expressions. This
        means that there must be at least one expression.</item>
       <item>A <em>list</em> is any number of items. For example,
-       an argument list can consist of zero, one or more arguments.</item>
+       an argument list can consist of zero, one, or more arguments.</item>
     </list>
     <p>If a feature has been added recently, in Erlang 5.0/OTP R7 or
       later, this is mentioned in the text.</p>
@@ -68,15 +86,16 @@
   <section>
     <title>Complete List of BIFs</title>
     <p>For a complete list of BIFs, their arguments and return values,
-      refer to <c>erlang(3)</c>.</p>
+      see <seealso marker="erts:erlang#process_flag/2">erlang(3)</seealso>
+      manual page in ERTS.</p>
   </section>
 
   <section>
     <title>Reserved Words</title>
     <p>The following are reserved words in Erlang:</p>
-    <p>after and andalso band begin bnot bor bsl bsr bxor case catch
+    <p><c>after and andalso band begin bnot bor bsl bsr bxor case catch
       cond div end fun if let not of or orelse receive rem try
-      when xor</p>
+      when xor</c></p>
   </section>
 
 </chapter>
diff --git a/system/doc/reference_manual/macros.xml b/system/doc/reference_manual/macros.xml
index 9fd0b0f287..01994aae5e 100644
--- a/system/doc/reference_manual/macros.xml
+++ b/system/doc/reference_manual/macros.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2003</year><year>2013</year>
+      <year>2003</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -21,7 +21,7 @@
 
     </legalnotice>
 
-    <title>The Preprocessor</title>
+    <title>Preprocessor</title>
     <prepared></prepared>
     <docno></docno>
     <date></date>
@@ -31,17 +31,17 @@
 
     <section>
       <title>File Inclusion</title>
-      <p>A file can be included in the following way:</p>
+      <p>A file can be included as follows:</p>
       <pre>
 -include(File).
 -include_lib(File).</pre>
-      <p><c>File</c>, a string, should point out a file. The contents of
-        this file are included as-is, at the position of the directive.</p>
+      <p><c>File</c>, a string, is to point out a file. The contents of
+        this file are included as is, at the position of the directive.</p>
       <p>Include files are typically used for record and macro
         definitions that are shared by several modules. It is
-        recommended that the file name extension <c>.hrl</c> be used
-        for include files.</p>
-      <p><c>File</c> may start with a path component <c>$VAR</c>, for
+        recommended to use the file name extension <c>.hrl</c> for
+        include files.</p>
+      <p><c>File</c> can start with a path component <c>$VAR</c>, for
         some string <c>VAR</c>. If that is the case, the value of
         the environment variable <c>VAR</c> as returned by
         <c>os:getenv(VAR)</c> is substituted for <c>$VAR</c>. If
@@ -49,21 +49,29 @@
         as is.</p>
       <p>If the filename <c>File</c> is absolute (possibly after
         variable substitution), the include file with that name is
-        included. Otherwise, the specified file is searched for in
-        the current working directory, in the same directory as
-        the module being compiled, and in the directories given by
-        the <c>include</c> option, in that order.
-        See <c>erlc(1)</c> and <c>compile(3)</c> for details.</p>
-      <p>Examples:</p>
+        included. Otherwise, the specified file is searched for
+	in the following directories, and in this order:</p>
+	<list type="ordered">
+	  <item>The current working directory</item>
+	  <item>The directory where the module is being compiled</item>
+	  <item>The directories given by the <c>include</c> option</item>
+	</list>
+	<p>For details, see the
+          <seealso marker="erts:erlc">erlc(1)</seealso> manual page
+           in ERTS and
+           <seealso marker="compiler:compile">compile(3)</seealso>
+           manual page in Compiler.</p>
+      <p><em>Examples:</em></p>
       <pre>
 -include("my_records.hrl").
 -include("incdir/my_records.hrl").
 -include("/home/user/proj/my_records.hrl").
 -include("$PROJ_ROOT/my_records.hrl").</pre>
-      <p><c>include_lib</c> is similar to <c>include</c>, but should not
+      <p><c>include_lib</c> is similar to <c>include</c>, but is not to
         point out an absolute file. Instead, the first path component
         (possibly after variable substitution) is assumed to be
-        the name of an application. Example:</p>
+        the name of an application.</p>
+	<p><em>Example:</em></p>
       <pre>
 -include_lib("kernel/include/file.hrl").</pre>
       <p>The code server uses <c>code:lib_dir(kernel)</c> to find
@@ -74,7 +82,7 @@
 
   <section>
     <title>Defining and Using Macros</title>
-    <p>A macro is defined the following way:</p>
+    <p>A macro is defined as follows:</p>
     <code type="none">
 -define(Const, Replacement).
 -define(Func(Var1,...,VarN), Replacement).</code>
@@ -83,33 +91,34 @@
       come before any usage of the macro.</p>
     <p>If a macro is used in several modules, it is recommended that
       the macro definition is placed in an include file.</p>
-    <p>A macro is used the following way:</p>
+    <p>A macro is used as follows:</p>
     <code type="none">
 ?Const
 ?Func(Arg1,...,ArgN)</code>
     <p>Macros are expanded during compilation. A simple macro
-      <c>?Const</c> will be replaced with <c>Replacement</c>.
-      Example:</p>
+      <c>?Const</c> is replaced with <c>Replacement</c>.</p>
+      <p><em>Example:</em></p>
     <code type="none">
 -define(TIMEOUT, 200).
 ...
 call(Request) ->
     server:call(refserver, Request, ?TIMEOUT).</code>
-    <p>This will be expanded to:</p>
+    <p>This is expanded to:</p>
     <code type="none">
 call(Request) ->
     server:call(refserver, Request, 200).</code>
-    <p>A macro <c>?Func(Arg1,...,ArgN)</c> will be replaced with
+    <p>A macro <c>?Func(Arg1,...,ArgN)</c> is replaced with
       <c>Replacement</c>, where all occurrences of a variable <c>Var</c>
       from the macro definition are replaced with the corresponding
-      argument <c>Arg</c>. Example:</p>
+      argument <c>Arg</c>.</p>
+      <p><em>Example:</em></p>
     <code type="none">
 -define(MACRO1(X, Y), {a, X, b, Y}).
 ...
 bar(X) ->
     ?MACRO1(a, b),
     ?MACRO1(X, 123)</code>
-    <p>This will be expanded to:</p>
+    <p>This is expanded to:</p>
     <code type="none">
 bar(X) ->
     {a,a,b,b},
@@ -154,7 +163,7 @@ bar(X) ->
 -define(F0(), c).
 -define(F1(A), A).
 -define(C, m:f).</code>
-    <p>the following will not work:</p>
+    <p>the following does not work:</p>
     <code type="none">
 f0() ->
     ?F0. % No, an empty list of arguments expected.
@@ -165,7 +174,7 @@ f1(A) ->
     <code>
 f() ->
     ?C().</code>
-    <p>will expand to</p>
+    <p>is expanded to</p>
     <code>
 f() ->
     m:f().</code>
@@ -185,7 +194,7 @@ f() ->
        defined.</item>
       <tag><c>-else.</c></tag>
       <item>Only allowed after an <c>ifdef</c> or <c>ifndef</c>
-       directive. If that condition was false, the lines following
+       directive. If that condition is false, the lines following
       <c>else</c> are evaluated instead.</item>
       <tag><c>-endif.</c></tag>
       <item>Specifies the end of an <c>ifdef</c> or <c>ifndef</c>
@@ -194,7 +203,7 @@ f() ->
     <note>
       <p>The macro directives cannot be used inside functions.</p>
     </note>
-    <p>Example:</p>
+    <p><em>Example:</em></p>
     <code type="none">
 -module(m).
 ...
@@ -206,7 +215,7 @@ f() ->
 -endif.
 
 ...</code>
-    <p>When trace output is desired, <c>debug</c> should be defined
+    <p>When trace output is desired, <c>debug</c> is to be defined
       when the module <c>m</c> is compiled:</p>
     <pre>
 % <input>erlc -Ddebug m.erl</input>
@@ -215,18 +224,18 @@ or
 
 1> <input>c(m, {d, debug}).</input>
 {ok,m}</pre>
-    <p><c>?LOG(Arg)</c> will then expand to a call to <c>io:format/2</c>
+    <p><c>?LOG(Arg)</c> is then expanded to a call to <c>io:format/2</c>
       and provide the user with some simple trace output.</p>
   </section>
 
   <section>
     <title>Stringifying Macro Arguments</title>
     <p>The construction <c>??Arg</c>, where <c>Arg</c> is a macro
-      argument, will be expanded to a string containing the tokens of
+      argument, is expanded to a string containing the tokens of
       the argument. This is similar to the <c>#arg</c> stringifying
       construction in C.</p>
     <p>The feature was added in Erlang 5.0/OTP R7.</p>
-    <p>Example:</p>
+    <p><em>Example:</em></p>
     <code type="none">
 -define(TESTCALL(Call), io:format("Call ~s: ~w~n", [??Call, Call])).
 
@@ -236,7 +245,7 @@ or
     <code type="none">
 io:format("Call ~s: ~w~n",["myfunction ( 1 , 2 )",myfunction(1,2)]),
 io:format("Call ~s: ~w~n",["you : function ( 2 , 1 )",you:function(2,1)]).</code>
-    <p>That is, a trace output with both the function called and
+    <p>That is, a trace output, with both the function called and
       the resulting value.</p>
   </section>
 </chapter>
diff --git a/system/doc/reference_manual/modules.xml b/system/doc/reference_manual/modules.xml
index f0ec7ef165..d283c33910 100644
--- a/system/doc/reference_manual/modules.xml
+++ b/system/doc/reference_manual/modules.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2003</year><year>2014</year>
+      <year>2003</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -33,7 +33,8 @@
     <title>Module Syntax</title>
     <p>Erlang code is divided into <em>modules</em>. A module consists
       of a sequence of attributes and function declarations, each
-      terminated by period (.). Example:</p>
+      terminated by period (.).</p>
+      <p><em>Example:</em></p>
     <pre>
 -module(m).          % module attribute
 -export([fact/1]).   % module attribute
@@ -42,50 +43,52 @@ fact(N) when N>0 ->  % beginning of function declaration
     N * fact(N-1);   %  |
 fact(0) ->           %  |
     1.               % end of function declaration</pre>
-    <p>See the <seealso marker="functions">Functions</seealso> chapter
-      for a description of function declarations.</p>
+    <p>For a description of function declarations, see
+    <seealso marker="functions">Function Declaration Syntax</seealso>.</p>
   </section>
 
   <section>
     <title>Module Attributes</title>
     <p>A <em>module attribute</em> defines a certain property of a
-      module. A module attribute consists of a tag and a value.</p>
+      module.</p>
+    <p>A module attribute consists of a tag and a value:</p>
     <pre>
 -Tag(Value).</pre>
     <p><c>Tag</c> must be an atom, while <c>Value</c> must be a literal
       term. As a convenience in user-defined attributes, if the literal term
       <c>Value</c> has the syntax <c>Name/Arity</c>
       (where <c>Name</c> is an atom and <c>Arity</c> a positive integer),
-	  the term <c>Name/Arity</c> will be translated to <c>{Name,Arity}</c>.</p>
+	  the term <c>Name/Arity</c> is translated to <c>{Name,Arity}</c>.</p>
 
     <p>Any module attribute can be specified. The attributes are stored
       in the compiled code and can be retrieved by calling
-      <c>Module:module_info(attributes)</c> or by using
-      <seealso marker="stdlib:beam_lib#chunks/2">beam_lib(3)</seealso>.</p>
+      <c>Module:module_info(attributes)</c>, or by using the module
+      <seealso marker="stdlib:beam_lib#chunks/2">beam_lib(3)</seealso>
+       in STDLIB.</p>
 
-    <p>There are several module attributes with predefined meanings,
-      some of which have arity two, but user-defined module
+    <p>Several module attributes have predefined meanings.
+      Some of them have arity two, but user-defined module
       attributes must have arity one.</p>
 
     <section>
       <title>Pre-Defined Module Attributes</title>
-      <p>Pre-defined module attributes should be placed before any
+      <p>Pre-defined module attributes is to be placed before any
         function declaration.</p>
       <taglist>
         <tag><c>-module(Module).</c></tag>
         <item>
           <p>Module declaration, defining the name of the module.
-            The name <c>Module</c>, an atom, should be the same as
-            the file name minus the extension <c>erl</c>. Otherwise
-            <seealso marker="code_loading#loading">code loading</seealso> will
+            The name <c>Module</c>, an atom, is to be same as
+            the file name minus the extension <c>.erl</c>. Otherwise
+            <seealso marker="code_loading#loading">code loading</seealso> does
             not work as intended.</p>
-          <p>This attribute should be specified first and is the only
-            attribute which is mandatory.</p>
+          <p>This attribute is to be specified first and is the only
+            mandatory attribute.</p>
         </item>
         <tag><c>-export(Functions).</c></tag>
         <item>
-          <p>Exported functions. Specifies which of the functions
-            defined within the module that are visible outside
+          <p>Exported functions. Specifies which of the functions,
+            defined within the module, that are visible from outside
             the module.</p>
           <p><c>Functions</c> is a list
             <c>[Name1/Arity1, ..., NameN/ArityN]</c>, where each
@@ -93,32 +96,37 @@ fact(0) ->           %  |
         </item>
         <tag><c>-import(Module,Functions).</c></tag>
         <item>
-          <p>Imported functions. Imported functions can be called
-            the same way as local functions, that is without any module
+          <p>Imported functions. Can be called
+            the same way as local functions, that is, without any module
             prefix.</p>
           <p><c>Module</c>, an atom, specifies which module to import
             functions from. <c>Functions</c> is a list similar as for
-            <c>export</c> above.</p>
+            <c>export</c>.</p>
         </item>
         <tag><c>-compile(Options).</c></tag>
         <item>
-          <p>Compiler options. <c>Options</c>, which is a single option
-            or a list of options, will be added to the option list when
-            compiling the module. See <c>compile(3)</c>.</p>
+          <p>Compiler options. <c>Options</c> is a single option
+            or a list of options.
+            This attribute is added to the option list when
+            compiling the module. See the <seealso marker="compiler:compile">
+            compile(3)</seealso> manual page in Compiler.</p>
         </item>
         <tag><c>-vsn(Vsn).</c></tag>
         <item>
           <p>Module version. <c>Vsn</c> is any literal term and can be
-            retrieved using <c>beam_lib:version/1</c>, see
-            <seealso marker="stdlib:beam_lib#version/1">beam_lib(3)</seealso>.</p>
+            retrieved using <c>beam_lib:version/1</c>, see the
+            <seealso marker="stdlib:beam_lib#version/1">beam_lib(3)</seealso>
+            manual page in STDLIB.</p>
           <p>If this attribute is not specified, the version defaults
             to the MD5 checksum of the module.</p>
         </item>
         <tag><c>-on_load(Function).</c></tag>
         <item>
-          <p>Names a function that should be run automatically when a
-            module a loaded. See <seealso marker="code_loading#on_load">
-            code loading</seealso> for more information.</p>
+          <p>This attribute names a function that is to be run
+            automatically when a
+            module is loaded. For more information, see
+	    <seealso marker="code_loading#on_load">
+            Running a Function When a Module is Loaded</seealso>.</p>
         </item>
       </taglist>
     </section>
@@ -130,9 +138,14 @@ fact(0) ->           %  |
       <pre>
 -behaviour(Behaviour).</pre>
       <p>The atom <c>Behaviour</c> gives the name of the behaviour,
-        which can be a user defined behaviour or one of the OTP
-        standard behaviours <c>gen_server</c>, <c>gen_fsm</c>,
-        <c>gen_event</c> or <c>supervisor</c>.</p>
+        which can be a user-defined behaviour or one of the following OTP
+        standard behaviours:</p>
+	<list type="bulleted">
+	  <item><c>gen_server</c></item>
+	  <item><c>gen_fsm</c></item>
+	  <item><c>gen_event</c></item>
+	  <item><c>supervisor</c></item>
+	</list>
       <p>The spelling <c>behavior</c> is also accepted.</p>
       <p>The callback functions of the module can be specified either
         directly by the exported function <c>behaviour_info/1</c>:</p>
@@ -142,7 +155,7 @@ behaviour_info(callbacks) -> Callbacks.</pre>
         function:</p>
       <pre>
 -callback Name(Arguments) -> Result.</pre>
-      <p>where <c>Arguments</c> is a list of zero or more arguments.
+      <p>Here, <c>Arguments</c> is a list of zero or more arguments.
        The <c>-callback</c> attribute is to be preferred since the
        extra type information can be used by tools to produce
        documentation or find discrepancies.</p>
@@ -153,7 +166,7 @@ behaviour_info(callbacks) -> Callbacks.</pre>
 
     <section>
       <title>Record Definitions</title>
-      <p>The same syntax as for module attributes is used by
+      <p>The same syntax as for module attributes is used
         for record definitions:</p>
       <pre>
 -record(Record,Fields).</pre>
@@ -163,7 +176,7 @@ behaviour_info(callbacks) -> Callbacks.</pre>
     </section>
 
     <section>
-      <title>The Preprocessor</title>
+      <title>Preprocessor</title>
       <p>The same syntax as for module attributes is used by
         the preprocessor, which supports file inclusion, macros,
 	and conditional compilation:</p>
@@ -171,7 +184,7 @@ behaviour_info(callbacks) -> Callbacks.</pre>
 -include("SomeFile.hrl").
 -define(Macro,Replacement).</pre>
 
-      <p>Read more in <seealso marker="macros">The Preprocessor</seealso>.</p>
+      <p>Read more in <seealso marker="macros">Preprocessor</seealso>.</p>
     </section>
 
     <section>
@@ -180,110 +193,125 @@ behaviour_info(callbacks) -> Callbacks.</pre>
         changing the pre-defined macros <c>?FILE</c> and <c>?LINE</c>:</p>
       <pre>
 -file(File, Line).</pre>
-      <p>This attribute is used by tools such as Yecc to inform the
-        compiler that the source program was generated by another tool
-        and indicates the correspondence of source files to lines of
-        the original user-written file from which the source program
-        was produced.</p>
+      <p>This attribute is used by tools, such as Yecc, to inform the
+        compiler that the source program is generated by another tool.
+        It also indicates the correspondence of source files to lines of
+        the original user-written file, from which the source program
+        is produced.</p>
     </section>
 
     <section>
         <title>Types and function specifications</title>
 	<p>A similar syntax as for module attributes is used for 
-	specifying types and function specifications.
+	specifying types and function specifications:
 	</p>
 	<pre>
 -type my_type() :: atom() | integer().
--spec my_function(integer()) -> integer().
-	</pre>
+-spec my_function(integer()) -> integer().</pre>
         <p>Read more in <seealso marker="typespec">Types and Function specifications</seealso>.
 	</p>
 	<p>
 	  The description is based on
 	    <url href="http://www.erlang.org/eeps/eep-0008.html">EEP8 -
-	    Types and function specifications</url>
-	    which will not be further updated.
+	    Types and function specifications</url>,
+	    which is not to be further updated.
 	</p>
     </section>
   </section>
 
   <section>
     <title>Comments</title>
-    <p>Comments may be placed anywhere in a module except within strings
-      and quoted atoms. The comment begins with the character "%",
+    <p>Comments can be placed anywhere in a module except within strings
+      and quoted atoms. A comment begins with the character "%",
       continues up to, but does not include the next end-of-line, and
-      has no effect. Note that the terminating end-of-line has
+      has no effect. Notice that the terminating end-of-line has
       the effect of white space.</p>
   </section>
 
   <section>
-    <title>The module_info/0 and module_info/1 functions</title>
+    <title>module_info/0 and module_info/1 functions</title>
 
     <p>The compiler automatically inserts the two special, exported
-      functions into each module: <c>Module:module_info/0</c> and
-      <c>Module:module_info/1</c>. These functions can be called to
-      retrieve information about the module.</p>
+      functions into each module:</p>
+      <list type="bulleted">
+	<item><c>Module:module_info/0</c></item>
+	<item><c>Module:module_info/1</c></item>
+      </list>
+      <p>These functions can be called to retrieve information
+        about the module.</p>
 
     <section>
       <title>module_info/0</title>
-      <p>The <c>module_info/0</c> function in each module returns
+      <p>The <c>module_info/0</c> function in each module, returns
       a list of <c>{Key,Value}</c> tuples with information about
       the module. Currently, the list contain tuples with the following
-      <c>Key</c>s: <c>attributes</c>, <c>compile</c>, 
-      <c>exports</c>, and <c>imports</c>. The order and number of tuples
+      <c>Key</c>s: <c>module</c>, <c>attributes</c>, <c>compile</c>,
+      <c>exports</c>, <c>md5</c> and <c>native</c>.
+      The order and number of tuples
       may change without prior notice.</p>
-
-      <warning><p>The <c>{imports,Value}</c> tuple may be removed in a future
-      release because <c>Value</c> is always an empty list.
-      Do not write code that depends on it being present.</p></warning>
     </section>
 
     <section>
       <title>module_info/1</title>
-      <p>The call <c>module_info(Key)</c>, where key is an atom,
+      <p>The call <c>module_info(Key)</c>, where <c>Key</c> is an atom,
        returns a single piece of information about the module.</p>
 
       <p>The following values are allowed for <c>Key</c>:</p>
 
       <taglist>
+        <tag><c>module</c></tag>
+	  <item>
+	  <p>Returns an atom representing the module name.</p>
+	  </item>
+
         <tag><c>attributes</c></tag>
 	  <item>
-	  <p>Return a list of <c>{AttributeName,ValueList}</c> tuples,
+	  <p>Returns a list of <c>{AttributeName,ValueList}</c> tuples,
 	  where <c>AttributeName</c> is the name of an attribute,
-	  and <c>ValueList</c> is a list of values. Note: a given
-	  attribute may occur more than once in the list with different
+	  and <c>ValueList</c> is a list of values. Notice that a given
+	  attribute can occur more than once in the list with different
 	  values if the attribute occurs more than once in the module.</p>
 
-	  <p>The list of attributes will be empty if
-	  the module has been stripped with
-	  <seealso marker="stdlib:beam_lib#strip/1">beam_lib(3)</seealso>.</p>
+	  <p>The list of attributes becomes empty if
+	  the module is stripped with the
+	  <seealso marker="stdlib:beam_lib#strip/1">beam_lib(3)</seealso>
+	  module (in STDLIB).</p>
 	  </item>
 
         <tag><c>compile</c></tag>
 	  <item>
-	  <p>Return a list of tuples containing information about
-	  how the module was compiled. This list will be empty if
-	  the module has been stripped with
-	  <seealso marker="stdlib:beam_lib#strip/1">beam_lib(3)</seealso>.</p>
+	  <p>Returns a list of tuples with information about
+	  how the module was compiled. This list is empty if
+	  the module has been stripped with the
+	  <seealso marker="stdlib:beam_lib#strip/1">beam_lib(3)</seealso>
+	  module (in STDLIB).</p>
 	  </item>
 
-        <tag><c>imports</c></tag>
+        <tag><c>md5</c></tag>
 	  <item>
-	  <p>Always return an empty list. The <c>imports</c> key may not
-	  be supported in future release.</p>
+	  <p>Returns a binary representing the MD5 checksum of the module.
+          If the module has native code loaded, this will be the MD5 of the
+          native code, not the BEAM bytecode.</p>
 	  </item>
 
         <tag><c>exports</c></tag>
 	  <item>
-	  <p>Return a list of <c>{Name,Arity}</c> tuples with
+	  <p>Returns a list of <c>{Name,Arity}</c> tuples with
 	  all exported functions in the module.</p>
 	  </item>
 
         <tag><c>functions</c></tag>
 	  <item>
-	  <p>Return a list of <c>{Name,Arity}</c> tuples with
+	  <p>Returns a list of <c>{Name,Arity}</c> tuples with
 	  all functions in the module.</p>
 	  </item>
+
+        <tag><c>native</c></tag>
+	  <item>
+	  <p>Return <c>true</c> if the module has native compiled code.
+          Return <c>false</c> otherwise. In a system compiled without HiPE
+          support, the result is always <c>false</c></p>
+	  </item>
       </taglist>
     </section>
   </section>
diff --git a/system/doc/reference_manual/patterns.xml b/system/doc/reference_manual/patterns.xml
index 1611002fa1..2163583636 100644
--- a/system/doc/reference_manual/patterns.xml
+++ b/system/doc/reference_manual/patterns.xml
@@ -40,7 +40,7 @@
       <seealso marker="expressions#term">term</seealso>. If
       the matching succeeds, any unbound variables in the pattern
       become bound. If the matching fails, a run-time error occurs.</p>
-    <p>Examples:</p>
+    <p><em>Examples:</em></p>
     <pre>
 1> <input>X.</input>
 ** 1: variable 'X' is unbound **
diff --git a/system/doc/reference_manual/ports.xml b/system/doc/reference_manual/ports.xml
index 621af10624..e5dc99641b 100644
--- a/system/doc/reference_manual/ports.xml
+++ b/system/doc/reference_manual/ports.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2004</year><year>2013</year>
+      <year>2004</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -28,9 +28,12 @@
     <rev></rev>
     <file>ports.xml</file>
   </header>
-  <p>Examples of how to use ports and port drivers can be found in
-    <em>Interoperability Tutorial</em>. The BIFs mentioned are as usual
-    documented in <c>erlang(3)</c>.</p>
+  <p>Examples of how to use ports and port drivers are provided in
+    <seealso marker="doc/tutorial:introduction#interoperability tutorial">
+    Interoperability Tutorial</seealso>.
+    For information about the BIFs mentioned, see the
+    <seealso marker="erts:erlang">erlang(3)</seealso> manual
+    page in ERTS.</p>
 
   <section>
     <title>Ports</title>
@@ -39,29 +42,34 @@
       provide a byte-oriented interface to an external program. When a
       port has been created, Erlang can communicate with it by sending
       and receiving lists of bytes, including binaries.</p>
-    <p>The Erlang process which creates a port is said to be
+    <p>The Erlang process creating a port is said to be
       the <em>port owner</em>, or the <em>connected process</em> of
-      the port. All communication to and from the port should go via
-      the port owner. If the port owner terminates, so will the port
+      the port. All communication to and from the port must go through
+      the port owner. If the port owner terminates, so does the port
       (and the external program, if it is written correctly).</p>
     <p>The external program resides in another OS process. By default,
-      it should read from standard input (file descriptor 0) and write
+      it reads from standard input (file descriptor 0) and writes
       to standard output (file descriptor 1). The external program
-      should terminate when the port is closed.</p>
+      is to terminate when the port is closed.</p>
   </section>
 
   <section>
     <title>Port Drivers</title>
-    <p>It is also possible to write a driver in C according to certain
+    <p>It is possible to write a driver in C according to certain
       principles and dynamically link it to the Erlang runtime system.
       The linked-in driver looks like a port from the Erlang
       programmer's point of view and is called a <em>port driver</em>.</p>
     <warning>
-      <p>An erroneous port driver will cause the entire Erlang runtime
+      <p>An erroneous port driver causes the entire Erlang runtime
         system to leak memory, hang or crash.</p>
     </warning>
-    <p>Port drivers are documented in <c>erl_driver(4)</c>,
-      <c>driver_entry(1)</c> and <c>erl_ddll(3)</c>.</p>
+    <p>For information about port drivers, see the
+      <seealso marker="erts:erl_driver">erl_driver(4)</seealso>
+      manual page in ERTS,
+      <seealso marker="erts:driver_entry">driver_entry(1)</seealso>
+      manual page in ERTS, and
+      <seealso marker="kernel:erl_ddll">erl_ddll(3)</seealso>
+      manual page in Kernel.</p>
   </section>
 
   <section>
@@ -70,53 +78,74 @@
     <table>
       <row>
         <cell align="left" valign="middle"><c>open_port(PortName, PortSettings</c></cell>
-        <cell align="left" valign="middle">Returns a port identifier <c>Port</c>as the result of opening a new Erlang port. Messages can be sent to and received from a port identifier, just like a pid. Port identifiers can also be linked to or registered under a name using <c>link/1</c>and <c>register/2</c>.</cell>
+        <cell align="left" valign="middle">Returns a port identifier
+        <c>Port</c> as the result of opening a new Erlang port.
+        Messages can be sent to, and received from, a port identifier,
+        just like a pid. Port identifiers can also be linked to
+        using <c>link/1</c>, or registered under a name using
+        <c>register/2</c>.</cell>
       </row>
-      <tcaption>Port Creation BIF.</tcaption>
+      <tcaption>Port Creation BIF</tcaption>
     </table>
     <p><c>PortName</c> is usually a tuple <c>{spawn,Command}</c>, where
       the string <c>Command</c> is the name of the external program.
-      The external program runs outside the Erlang workspace unless a
-      port driver with the name <c>Command</c> is found. If found, that
-      driver is started.</p>
+      The external program runs outside the Erlang workspace, unless a
+      port driver with the name <c>Command</c> is found. If <c>Command</c>
+      is found, that driver is started.</p>
     <p><c>PortSettings</c> is a list of settings (options) for the port.
-      The list typically contains at least a tuple <c>{packet,N}</c>
+      The list typically contains at least a tuple <c>{packet,N}</c>,
       which specifies that data sent between the port and the external
       program are preceded by an N-byte length indicator. Valid values
-      for N are 1, 2 or 4. If binaries should be used instead of lists
+      for N are 1, 2, or 4. If binaries are to be used instead of lists
       of bytes, the option <c>binary</c> must be included.</p>
     <p>The port owner <c>Pid</c> can communicate with the port
       <c>Port</c> by sending and receiving messages. (In fact, any
       process can send the messages to the port, but the port owner must
       be identified in the message).</p>
-    <p>As of OTP-R16 messages sent to ports are delivered truly
+    <p>As of Erlang/OTP R16, messages sent to ports are delivered truly
       asynchronously. The underlying implementation previously
       delivered messages to ports synchronously. Message passing has
-      however always been documented as an asynchronous operation, so
-      this should not be an issue for an Erlang program communicating
-      with ports, unless false assumptions about ports has been made.</p>
-    <p>Below, <c>Data</c> must be an I/O list. An I/O list is a binary
-      or a (possibly deep) list of binaries or integers in the range
-      0..255.</p>
+      however always been documented as an asynchronous operation. Hence,
+      this is not to be an issue for an Erlang program communicating
+      with ports, unless false assumptions about ports have been made.</p>
+    <p>In the following tables of examples, <c>Data</c> must be an I/O list.
+      An I/O list is a binary or a (possibly deep) list of binaries
+      or integers in the range 0..255:</p>
     <table>
       <row>
+        <cell align="left" valign="middle"><em>Message</em></cell>
+        <cell align="left" valign="middle"><em>Description</em></cell>
+      </row>
+      <row>
         <cell align="left" valign="middle"><c>{Pid,{command,Data}}</c></cell>
-        <cell align="left" valign="middle">Sends <c>Data</c>to the port.</cell>
+        <cell align="left" valign="middle">Sends <c>Data</c> to the port.</cell>
       </row>
       <row>
         <cell align="left" valign="middle"><c>{Pid,close}</c></cell>
-        <cell align="left" valign="middle">Closes the port. Unless the port is already closed, the port replies with <c>{Port,closed}</c>when all buffers have been flushed and the port really closes.</cell>
+        <cell align="left" valign="middle">Closes the port. Unless the
+        port is already closed, the port replies with
+        <c>{Port,closed}</c> when all buffers have been flushed
+        and the port really closes.</cell>
       </row>
       <row>
         <cell align="left" valign="middle"><c>{Pid,{connect,NewPid}}</c></cell>
-        <cell align="left" valign="middle">Sets the port owner of <c>Port</c>to <c>NewPid</c>. Unless the port is already closed, the port replies with<c>{Port,connected}</c>to the old port owner. Note that the old port owner is still linked to the port, but the new port owner is not.</cell>
+        <cell align="left" valign="middle">Sets the port owner of
+        <c>Port</c>to <c>NewPid</c>. Unless the port is already closed,
+        the port replies with<c>{Port,connected}</c> to the old
+        port owner. Note that the old port owner is still linked
+        to the port, but the new port owner is not.</cell>
       </row>
-      <tcaption>Messages Sent To a Port.</tcaption>
+      <tcaption>Messages Sent To a Port</tcaption>
     </table>
+    <p></p>
     <table>
       <row>
+        <cell align="left" valign="middle"><em>Message</em></cell>
+        <cell align="left" valign="middle"><em>Description</em></cell>
+      </row>
+      <row>
         <cell align="left" valign="middle"><c>{Port,{data,Data}}</c></cell>
-        <cell align="left" valign="middle"><c>Data</c>is received from the external program.</cell>
+        <cell align="left" valign="middle"><c>Data</c> is received from the external program.</cell>
       </row>
       <row>
         <cell align="left" valign="middle"><c>{Port,closed}</c></cell>
@@ -124,20 +153,24 @@
       </row>
       <row>
         <cell align="left" valign="middle"><c>{Port,connected}</c></cell>
-        <cell align="left" valign="middle">Reply to <c>Port ! {Pid,{connect,NewPid}}</c></cell>
+        <cell align="left" valign="middle">Reply to <c>Port ! {Pid,{connect,NewPid}}</c>.</cell>
       </row>
       <row>
         <cell align="left" valign="middle"><c>{'EXIT',Port,Reason}</c></cell>
         <cell align="left" valign="middle">If the port has terminated for some reason.</cell>
       </row>
-      <tcaption>Messages Received From a Port.</tcaption>
+      <tcaption>Messages Received From a Port</tcaption>
     </table>
     <p>Instead of sending and receiving messages, there are also a
-      number of BIFs that can be used.</p>
+      number of BIFs that can be used:</p>
     <table>
       <row>
+        <cell align="left" valign="middle"><em>Port BIF</em></cell>
+        <cell align="left" valign="middle"><em>Description</em></cell>
+      </row>
+      <row>
         <cell align="left" valign="middle"><c>port_command(Port,Data)</c></cell>
-        <cell align="left" valign="middle">Sends <c>Data</c>to the port.</cell>
+        <cell align="left" valign="middle">Sends <c>Data</c> to the port.</cell>
       </row>
       <row>
         <cell align="left" valign="middle"><c>port_close(Port)</c></cell>
@@ -145,7 +178,10 @@
       </row>
       <row>
         <cell align="left" valign="middle"><c>port_connect(Port,NewPid)</c></cell>
-        <cell align="left" valign="middle">Sets the port owner of <c>Port</c>to <c>NewPid</c>. The old port owner <c>Pid</c>stays linked to the port and have to call <c>unlink(Port)</c>if this is not desired.</cell>
+        <cell align="left" valign="middle">Sets the port owner of
+        <c>Port</c>to <c>NewPid</c>. The old port owner <c>Pid</c>
+        stays linked to the port and must call <c>unlink(Port)</c>
+        if this is not desired.</cell>
       </row>
       <row>
         <cell align="left" valign="middle"><c>erlang:port_info(Port,Item)</c></cell>
@@ -155,9 +191,9 @@
         <cell align="left" valign="middle"><c>erlang:ports()</c></cell>
         <cell align="left" valign="middle">Returns a list of all ports on the current node.</cell>
       </row>
-      <tcaption>Port BIFs.</tcaption>
+      <tcaption>Port BIFs</tcaption>
     </table>
-    <p>There are some additional BIFs that only apply to port drivers:
+    <p>Some additional BIFs that apply to port drivers:
       <c>port_control/3</c> and <c>erlang:port_call/3</c>.</p>
   </section>
 </chapter>
diff --git a/system/doc/reference_manual/processes.xml b/system/doc/reference_manual/processes.xml
index 95ae0672ec..d8474c163c 100644
--- a/system/doc/reference_manual/processes.xml
+++ b/system/doc/reference_manual/processes.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2003</year><year>2013</year>
+      <year>2003</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -32,8 +32,8 @@
   <section>
     <title>Processes</title>
     <p>Erlang is designed for massive concurrency. Erlang processes are
-      light-weight (grow and shrink dynamically) with small memory
-      footprint, fast to create and terminate and the scheduling
+      lightweight (grow and shrink dynamically) with small memory
+      footprint, fast to create and terminate, and the scheduling
       overhead is low.</p>
   </section>
 
@@ -46,10 +46,10 @@ spawn(Module, Name, Args) -> pid()
   Args = [Arg1,...,ArgN]
     ArgI = term()</pre>
     <p><c>spawn</c> creates a new process and returns the pid.</p>
-    <p>The new process will start executing in
-      <c>Module:Name(Arg1,...,ArgN)</c> where the arguments is
+    <p>The new process starts executing in
+      <c>Module:Name(Arg1,...,ArgN)</c> where the arguments are
       the elements of the (possible empty) <c>Args</c> argument list.</p>
-    <p>There exist a number of other <c>spawn</c> BIFs, for example
+    <p>There exist a number of other <c>spawn</c> BIFs, for example,
       <c>spawn/4</c> for spawning a process at another node.</p>
   </section>
 
@@ -60,18 +60,25 @@ spawn(Module, Name, Args) -> pid()
       atom and is automatically unregistered if the process terminates:</p>
     <table>
       <row>
+        <cell align="left" valign="middle"><em>BIF</em></cell>
+        <cell align="left" valign="middle"><em>Description</em></cell>
+      </row>
+      <row>
         <cell align="left" valign="middle"><c>register(Name, Pid)</c></cell>
         <cell align="left" valign="middle">Associates the name <c>Name</c>, an atom, with the process <c>Pid</c>.</cell>
       </row>
       <row>
         <cell align="left" valign="middle"><c>registered()</c></cell>
-        <cell align="left" valign="middle">Returns a list of names which have been registered using<c>register/2</c>.</cell>
+        <cell align="left" valign="middle">Returns a list of names that
+        have been registered using <c>register/2</c>.</cell>
       </row>
       <row>
         <cell align="left" valign="middle"><c>whereis(Name)</c></cell>
-        <cell align="left" valign="middle">Returns the pid registered under <c>Name</c>, or<c>undefined</c>if the name is not registered.</cell>
+        <cell align="left" valign="middle">Returns the pid registered
+        under <c>Name</c>, or <c>undefined </c>if the name is not
+        registered.</cell>
       </row>
-      <tcaption>Name Registration BIFs.</tcaption>
+      <tcaption>Name Registration BIFs</tcaption>
     </table>
   </section>
 
@@ -79,22 +86,27 @@ spawn(Module, Name, Args) -> pid()
     <marker id="term"></marker>
     <title>Process Termination</title>
     <p>When a process terminates, it always terminates with an
-      <em>exit reason</em>. The reason may be any term.</p>
+      <em>exit reason</em>. The reason can be any term.</p>
     <p>A process is said to terminate <em>normally</em>, if the exit
       reason is the atom <c>normal</c>. A process with no more code to
       execute terminates normally.</p>
-    <p>A process terminates with exit reason <c>{Reason,Stack}</c>
+    <p>A process terminates with an exit reason <c>{Reason,Stack}</c>
       when a run-time error occurs. See
-      <seealso marker="errors#exit_reasons">Error and Error Handling</seealso>.</p>
-    <p>A process can terminate itself by calling one of the BIFs
-      <c>exit(Reason)</c>, 
-      <c>erlang:error(Reason)</c>, <c>erlang:error(Reason, Args)</c>,
-      <c>erlang:fault(Reason)</c> or <c>erlang:fault(Reason, Args)</c>. 
-      The process then terminates with reason <c>Reason</c> for
+      <seealso marker="errors#exit_reasons">Exit Reasons</seealso>.</p>
+    <p>A process can terminate itself by calling one of the
+       following BIFs:</p>
+    <list type="bulleted">
+      <item><c>exit(Reason)</c></item>
+      <item><c>erlang:error(Reason)</c></item>
+      <item><c>erlang:error(Reason, Args)</c></item>
+      <item><c>erlang:fault(Reason)</c></item>
+      <item><c>erlang:fault(Reason, Args)</c></item>
+    </list>
+    <p>The process then terminates with reason <c>Reason</c> for
       <c>exit/1</c> or <c>{Reason,Stack} for the others</c>.</p>
-    <p>A process may also be terminated if it receives an exit signal
+    <p>A process can also be terminated if it receives an exit signal
       with another exit reason than <c>normal</c>, see
-      <seealso marker="#errors">Error Handling</seealso> below.</p>
+      <seealso marker="#errors">Error Handling</seealso>.</p>
   </section>
 
   <section>
@@ -113,35 +125,39 @@ spawn(Module, Name, Args) -> pid()
     <title>Links</title>
     <p>Two processes can be <em>linked</em> to each other. A link
       between two processes <c>Pid1</c> and <c>Pid2</c> is created
-      by <c>Pid1</c> calling the BIF <c>link(Pid2)</c> (or vice versa).
+      by <c>Pid1</c> calling the BIF <c>link(Pid2)</c> (or conversely).
       There also exist a number of <c>spawn_link</c> BIFs, which spawn
       and link to a process in one operation.</p>
     <p>Links are bidirectional and there can only be one link between
       two processes. Repeated calls to <c>link(Pid)</c> have no effect.</p>
     <p>A link can be removed by calling the BIF <c>unlink(Pid)</c>.</p>
     <p>Links are used to monitor the behaviour of other processes, see
-      <seealso marker="#errors">Error Handling</seealso> below.</p>
+      <seealso marker="#errors">Error Handling</seealso>.</p>
   </section>
 
   <section>
     <marker id="errors"></marker>
     <title>Error Handling</title>
     <p>Erlang has a built-in feature for error handling between
-      processes. Terminating processes will emit exit signals to all
-      linked processes, which may terminate as well or handle the exit
+      processes. Terminating processes emit exit signals to all
+      linked processes, which can terminate as well or handle the exit
       in some way. This feature can be used to build hierarchical
       program structures where some processes are supervising other
-      processes, for example restarting them if they terminate
+      processes, for example, restarting them if they terminate
       abnormally.</p>
-    <p>Refer to OTP Design Principles for more information about
-      OTP supervision trees, which uses this feature.</p>
+    <p>See <seealso marker=
+      "doc/design_principles:des_princ#otp design principles">
+      OTP Design Principles</seealso> for more information about
+      OTP supervision trees, which use this feature.</p>
 
     <section>
       <title>Emitting Exit Signals</title>
-      <p>When a process terminates, it will terminate with an <em>exit reason</em> as explained in <seealso marker="#term">Process Termination</seealso> above. This exit reason is emitted in
+      <p>When a process terminates, it terminates with an
+        <em>exit reason</em> as explained in <seealso marker="#term">
+        Process Termination</seealso>. This exit reason is emitted in
         an <em>exit signal</em> to all linked processes.</p>
       <p>A process can also call the function <c>exit(Pid,Reason)</c>.
-        This will result in an exit signal with exit reason
+        This results in an exit signal with exit reason
         <c>Reason</c> being emitted to <c>Pid</c>, but does not affect
         the calling process.</p>
     </section>
@@ -156,14 +172,14 @@ spawn(Module, Name, Args) -> pid()
       <p>A process can be set to trap exit signals by calling:</p>
       <pre>
 process_flag(trap_exit, true)</pre>
-      <p>When a process is trapping exits, it will not terminate when
+      <p>When a process is trapping exits, it does not terminate when
         an exit signal is received. Instead, the signal is transformed
-        into a message <c>{'EXIT',FromPid,Reason}</c> which is put into
-        the mailbox of the process just like a regular message.</p>
+        into a message <c>{'EXIT',FromPid,Reason}</c>, which is put into
+        the mailbox of the process, just like a regular message.</p>
       <p>An exception to the above is if the exit reason is <c>kill</c>,
-        that is if <c>exit(Pid,kill)</c> has been called. This will
-        unconditionally terminate the process, regardless of if it is
-        trapping exit signals or not.</p>
+        that is if <c>exit(Pid,kill)</c> has been called. This
+        unconditionally terminates the process, regardless of if it is
+        trapping exit signals.</p>
     </section>
   </section>
 
@@ -180,12 +196,12 @@ process_flag(trap_exit, true)</pre>
     <p>If <c>Pid2</c> does not exist, the 'DOWN' message is sent
       immediately with <c>Reason</c> set to <c>noproc</c>.</p>
     <p>Monitors are unidirectional. Repeated calls to
-      <c>erlang:monitor(process, Pid)</c> will create several,
-      independent monitors and each one will send a 'DOWN' message when
+      <c>erlang:monitor(process, Pid)</c> creates several
+      independent monitors, and each one sends a 'DOWN' message when
       <c>Pid</c> terminates.</p>
     <p>A monitor can be removed by calling
       <c>erlang:demonitor(Ref)</c>.</p>
-    <p>It is possible to create monitors for processes with registered
+    <p>Monitors can be created for processes with registered
       names, also at other nodes.</p>
   </section>
 
diff --git a/system/doc/reference_manual/records.xml b/system/doc/reference_manual/records.xml
index 04766531df..72c56b693d 100644
--- a/system/doc/reference_manual/records.xml
+++ b/system/doc/reference_manual/records.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2003</year><year>2013</year>
+      <year>2003</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -32,16 +32,19 @@
     elements. It has named fields and is similar to a struct in C.
     Record expressions are translated to tuple expressions during
     compilation. Therefore, record expressions are not understood by
-    the shell unless special actions are taken. See <c>shell(3)</c>
-    for details.</p>
-  <p>More record examples can be found in <em>Programming Examples</em>.</p>
+    the shell unless special actions are taken. For details, see the
+    <seealso marker="stdlib:shell">shell(3)</seealso>
+    manual page in STDLIB.</p>
+  <p>More examples are provided in
+    <seealso marker="doc/programming_examples:records">
+    Programming Examples</seealso>.</p>
 
   <section>
     <title>Defining Records</title>
     <p>A record definition consists of the name of the record,
       followed by the field names of the record. Record and field names
       must be atoms. Each field can be given an optional default value.
-      If no default value is supplied, <c>undefined</c> will be used.</p>
+      If no default value is supplied, <c>undefined</c> is used.</p>
     <pre>
 -record(Name, {Field1 [= Value1],
                ...
@@ -60,17 +63,18 @@
       the corresponding expression <c>ExprI</c>:</p>
     <pre>
 #Name{Field1=Expr1,...,FieldK=ExprK}</pre>
-    <p>The fields may be in any order, not necessarily the same order as
+    <p>The fields can be in any order, not necessarily the same order as
       in the record definition, and fields can be omitted. Omitted
-      fields will get their respective default value instead.</p>
-    <p>If several fields should be assigned the same value,
+      fields get their respective default value instead.</p>
+    <p>If several fields are to be assigned the same value,
       the following construction can be used:</p>
     <pre>
 #Name{Field1=Expr1,...,FieldK=ExprK, _=ExprL}</pre>
-    <p>Omitted fields will then get the value of evaluating <c>ExprL</c>
+    <p>Omitted fields then get the value of evaluating <c>ExprL</c>
       instead of their default values. This feature was added in
       Erlang 5.1/OTP R8 and is primarily intended to be used to create
-      patterns for ETS and Mnesia match functions. Example:</p>
+      patterns for ETS and Mnesia match functions.</p>
+    <p><em>Example:</em></p>
     <pre>
 -record(person, {name, phone, address}).
 
@@ -84,13 +88,13 @@ lookup(Name, Tab) ->
     <title>Accessing Record Fields</title>
     <pre>
 Expr#Name.Field</pre>
-    <p>Returns the value of the specified field. <c>Expr</c> should
+    <p>Returns the value of the specified field. <c>Expr</c> is to
       evaluate to a <c>Name</c> record.</p>
     <p>The following expression returns the position of the specified
       field in the tuple representation of the record:</p>
     <pre>
 #Name.Field</pre>
-    <p>Example:</p>
+    <p><em>Example:</em></p>
     <pre>
 -record(person, {name, phone, address}).
 
@@ -104,8 +108,8 @@ lookup(Name, List) ->
     <title>Updating Records</title>
     <pre>
 Expr#Name{Field1=Expr1,...,FieldK=ExprK}</pre>
-    <p><c>Expr</c> should evaluate to a <c>Name</c> record. Returns a
-      copy of this record, with the value of each specified field
+    <p><c>Expr</c> is to evaluate to a <c>Name</c> record. A
+      copy of this record is returned, with the value of each specified field
       <c>FieldI</c> changed to the value of evaluating the corresponding
       expression <c>ExprI</c>. All other fields retain their old
       values.</p>
@@ -116,17 +120,17 @@ Expr#Name{Field1=Expr1,...,FieldK=ExprK}</pre>
     <title>Records in Guards</title>
     <p>Since record expressions are expanded to tuple expressions,
       creating records and accessing record fields are allowed in
-      guards. However all subexpressions, for example for field
-      initiations, must of course be valid guard expressions as well.
-      Examples:</p>
+      guards. However all subexpressions, for example, for field
+      initiations, must be valid guard expressions as well.</p>
+    <p><em>Examples:</em></p>
     <code type="none">
 handle(Msg, State) when Msg==#msg{to=void, no=3} ->
     ...
 
 handle(Msg, State) when State#state.running==true ->
     ...</code>
-    <p>There is also a type test BIF <c>is_record(Term, RecordTag)</c>.
-      Example:</p>
+    <p>There is also a type test BIF <c>is_record(Term, RecordTag)</c>.</p>
+    <p><em>Example:</em></p>
     <pre>
 is_person(P) when is_record(P, person) ->
     true;
@@ -136,18 +140,18 @@ is_person(_P) ->
 
   <section>
     <title>Records in Patterns</title>
-    <p>A pattern that will match a certain record is created the same
+    <p>A pattern that matches a certain record is created in the same
       way as a record is created:</p>
     <pre>
 #Name{Field1=Expr1,...,FieldK=ExprK}</pre>
-    <p>In this case, one or more of <c>Expr1</c>...<c>ExprK</c> may be
+    <p>In this case, one or more of <c>Expr1</c>...<c>ExprK</c> can be
       unbound variables.</p>
   </section>
 
   <section>
-    <title>Nested records</title>
-    <p>Beginning with R14 parentheses when accessing or updating nested
-      records can be omitted. Assuming we have the following record
+    <title>Nested Records</title>
+    <p>Beginning with Erlang/OTP R14, parentheses when accessing or updating nested
+      records can be omitted. Assume the following record
       definitions:</p>
     <pre>
 -record(nrec0, {name = "nested0"}).
@@ -156,12 +160,12 @@ is_person(_P) ->
 
 N2 = #nrec2{},
     </pre>
-    <p>Before R14 you would have needed to use parentheses as following:</p>
+    <p>Before R14, parentheses were needed as follows:</p>
     <pre>
 "nested0" = ((N2#nrec2.nrec1)#nrec1.nrec0)#nrec0.name,
 N0n = ((N2#nrec2.nrec1)#nrec1.nrec0)#nrec0{name = "nested0a"},
     </pre>
-    <p>Since R14 you can also write:</p>
+    <p>Since R14, the following can also be written:</p>
     <pre>
 "nested0" = N2#nrec2.nrec1#nrec1.nrec0#nrec0.name,
 N0n = N2#nrec2.nrec1#nrec1.nrec0#nrec0{name = "nested0a"},</pre>
@@ -170,23 +174,23 @@ N0n = N2#nrec2.nrec1#nrec1.nrec0#nrec0{name = "nested0a"},</pre>
   <section>
     <title>Internal Representation of Records</title>
     <p>Record expressions are translated to tuple expressions during
-      compilation. A record defined as</p>
+      compilation. A record defined as:</p>
     <pre>
 -record(Name, {Field1,...,FieldN}).</pre>
-    <p>is internally represented by the tuple</p>
+    <p>is internally represented by the tuple:</p>
     <pre>
 {Name,Value1,...,ValueN}</pre>
-    <p>where each <c>ValueI</c> is the default value for <c>FieldI</c>.</p>
+    <p>Here each <c>ValueI</c> is the default value for <c>FieldI</c>.</p>
     <p>To each module using records, a pseudo function is added
       during compilation to obtain information about records:</p>
     <pre>
 record_info(fields, Record) -> [Field]
 record_info(size, Record) -> Size</pre>
-    <p><c>Size</c> is the size of the tuple representation, that is
+    <p><c>Size</c> is the size of the tuple representation, that is,
       one more than the number of fields.</p>
     <p>In addition, <c>#Record.Name</c> returns the index in the tuple
-    representation of <c>Name</c> of the record <c>Record</c>.
-    <c>Name</c> must be an atom.</p>
+      representation of <c>Name</c> of the record <c>Record</c>.</p>
+    <p><c>Name</c> must be an atom.</p>
   </section>
 </chapter>
 
diff --git a/system/doc/reference_manual/typespec.xml b/system/doc/reference_manual/typespec.xml
index e4aa2ceda6..0dca743ab3 100644
--- a/system/doc/reference_manual/typespec.xml
+++ b/system/doc/reference_manual/typespec.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2003</year><year>2014</year>
+      <year>2003</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -34,43 +34,46 @@
     <p>
       Erlang is a dynamically typed language. Still, it comes with a
       notation for declaring sets of Erlang terms to form a particular
-      type, effectively forming a specific sub-type of the set of all
+      type. This effectively forms specific subtypes of the set of all
       Erlang terms.
     </p>
     <p>
       Subsequently, these types can be used to specify types of record fields
-      and the argument and return types of functions.
-    </p>
-    <p>
-      Type information can be used to document function interfaces,
-      provide more information for bug detection tools such as <c>Dialyzer</c>,
-      and can be exploited by documentation tools such as <c>Edoc</c> for
-      generating program documentation of various forms.
-      It is expected that the type language described in this document will
-      supersede and replace the purely comment-based <c>@type</c> and
-      <c>@spec</c> declarations used by <c>Edoc</c>.
-    </p>
+      and also the argument and return types of functions.
+    </p>
+    <p>
+      Type information can be used for the following:</p>
+    <list type="bulleted">
+      <item>To document function interfaces</item>
+      <item>To provide more information for bug detection tools,
+      such as <c>Dialyzer</c></item>
+      <item>To be exploited by documentation tools, such as EDoc, for
+      generating program documentation of various forms</item>
+    </list>
+    <p>It is expected that the type language described in this section
+      supersedes and replaces the purely comment-based <c>@type</c> and
+      <c>@spec</c> declarations used by EDoc.</p>
   </section>
   <section>
     <marker id="syntax"></marker>
     <title>Types and their Syntax</title>
     <p>
       Types describe sets of Erlang terms.
-      Types consist and are built from a set of predefined types
-      (e.g. <c>integer()</c>, <c>atom()</c>, <c>pid()</c>, ...)
-      described below.
-      Predefined types represent a typically infinite set of Erlang terms which
+      Types consist of, and are built from, a set of predefined types,
+      for example, <c>integer()</c>, <c>atom()</c>, and <c>pid()</c>.
+      Predefined types represent a typically infinite set of Erlang terms that
       belong to this type.  For example, the type <c>atom()</c> stands for the
       set of all Erlang atoms.
     </p>
     <p>
-      For integers and atoms, we allow for singleton types (e.g. the integers
-      <c>-1</c> and <c>42</c> or the atoms <c>'foo'</c> and <c>'bar'</c>).
+      For integers and atoms, it is allowed for singleton types; for example,
+      the integers
+      <c>-1</c> and <c>42</c>, or the atoms <c>'foo'</c> and <c>'bar'</c>).
 
       All other types are built using unions of either predefined
       types or singleton types. In a type union between a type and one
-      of its sub-types the sub-type is absorbed by the super-type and
-      the union is subsequently treated as if the sub-type was not a
+      of its subtypes, the subtype is absorbed by the supertype. Thus,
+      the union is then treated as if the subtype was not a
       constituent of the union. For example, the type union:
     </p>
     <pre>  atom() | 'bar' | integer() | 42</pre>
@@ -79,13 +82,13 @@
     </p>
     <pre>  atom() | integer()</pre>
     <p>
-      Because of sub-type relations that exist between types, types
-      form a lattice where the topmost element, <c>any()</c>, denotes
+      Because of subtype relations that exist between types, types
+      form a lattice where the top-most element, <c>any()</c>, denotes
       the set of all Erlang terms and the bottom-most element, <c>none()</c>,
       denotes the empty set of terms.
     </p>
     <p>
-      The set of predefined types and the syntax for types is given below:
+      The set of predefined types and the syntax for types follows:
     </p>
     <pre><![CDATA[
   Type :: any()                 %% The top type, the set of all Erlang terms
@@ -103,7 +106,7 @@
         | Map
         | Tuple
         | Union
-        | UserDefined           %% described in Section 7.3
+        | UserDefined           %% described in Type Declarations of User-Defined Types
 
   Atom :: atom()
         | Erlang_Atom           %% 'foo', 'bar', ...
@@ -146,22 +149,22 @@
   <p>
     The general form of bitstrings is <c>&lt;&lt;_:M, _:_*N&gt;&gt;</c>,
     where <c>M</c> and <c>N</c> are positive integers. It denotes a
-    bitstring that is <c>M + (k*N)</c> bits long (i.e., a bitstring that
+    bitstring that is <c>M + (k*N)</c> bits long (that is, a bitstring that
     starts with <c>M</c> bits and continues with <c>k</c> segments of
     <c>N</c> bits each, where <c>k</c> is also a positive integer).
     The notations <c>&lt;&lt;_:_*N&gt;&gt;</c>, <c>&lt;&lt;_:M&gt;&gt;</c>,
     and <c>&lt;&lt;&gt;&gt;</c> are convenient shorthands for the cases
-    that <c>M</c>, <c>N</c>, or both, respectively, are zero.
+    that <c>M</c> or <c>N</c>, or both, are zero.
   </p>
   <p>
     Because lists are commonly used, they have shorthand type notations. 
     The types <c>list(T)</c> and <c>nonempty_list(T)</c> have the shorthands
     <c>[T]</c> and <c>[T,...]</c>, respectively.
-    The only difference between the two shorthands is that <c>[T]</c> may be an 
-    empty list but <c>[T,...]</c> may not.
+    The only difference between the two shorthands is that <c>[T]</c> can be an
+    empty list but <c>[T,...]</c> cannot.
   </p>
   <p>
-    Notice that the shorthand for <c>list()</c>, i.e. the list of
+    Notice that the shorthand for <c>list()</c>, that is, the list of
     elements of unknown type, is <c>[_]</c> (or <c>[any()]</c>), not <c>[]</c>. 
     The notation <c>[]</c> specifies the singleton type for the empty list.
   </p>
@@ -172,7 +175,7 @@
   </p>
   <table>
     <row>
-      <cell><b>Built-in type</b></cell><cell><b>Defined as</b></cell>
+      <cell><em>Built-in type</em></cell><cell><em>Defined as</em></cell>
     </row>
     <row>
       <cell><c>term()</c></cell><cell><c>any()</c></cell>
@@ -223,12 +226,15 @@
       <cell><c>module()</c></cell><cell><c>atom()</c></cell>
     </row>
     <row> 
-      <cell><c>mfa()</c></cell><cell><c>{atom(),atom(),arity()}</c></cell>
+      <cell><c>mfa()</c></cell><cell><c>{module(),atom(),arity()}</c></cell>
     </row>
     <row>
       <cell><c>arity()</c></cell><cell><c>0..255</c></cell>
     </row>
     <row>
+      <cell><c>identifier()</c></cell><cell><c>pid() | port() | reference()</c></cell>
+    </row>
+    <row>
       <cell><c>node()</c></cell><cell><c>atom()</c></cell>
     </row>
     <row>
@@ -237,6 +243,7 @@
     <row>
       <cell><c>no_return()</c></cell><cell><c>none()</c></cell> 
     </row>
+    <tcaption>Built-in types, predefined aliases</tcaption>
   </table>
   <p>
   In addition, the following three built-in types exist and can be
@@ -245,7 +252,8 @@
   </p>
   <table>
     <row>
-      <cell><b>Built-in type</b></cell><cell><b>Could be thought defined by the syntax</b></cell>
+      <cell><em>Built-in type</em></cell><cell><em>
+        Can be thought defined by the syntax</em></cell>
     </row>
     <row>
       <cell><c>non_neg_integer()</c></cell><cell><c>0..</c></cell>
@@ -256,6 +264,7 @@
     <row>
       <cell><c>neg_integer()</c></cell><cell><c>..-1</c></cell>
     </row>
+    <tcaption>Additional built-in types</tcaption>
   </table>
   
   <p>
@@ -264,8 +273,10 @@
     its violation results in a compilation error. 
   </p>
   <note>
-    The following built-in list types also exist, 
-    but they are expected to be rarely used. Hence, they have long names:
+    <p>
+      The following built-in list types also exist,
+      but they are expected to be rarely used. Hence, they have long names:
+    </p>
   </note>
   <pre>
   nonempty_maybe_improper_list() :: nonempty_maybe_improper_list(any(), any())
@@ -276,109 +287,118 @@
     define the set of Erlang terms one would expect.
   </p>
   <p>
-    Also for convenience, we allow for record notation to be used. 
-    Records are just shorthands for the corresponding tuples.
+    Also for convenience, record notation is allowed to be used.
+    Records are shorthands for the corresponding tuples:
   </p>
   <pre>
   Record :: #Erlang_Atom{}
           | #Erlang_Atom{Fields}</pre>
   <p>
-    Records have been extended to possibly contain type information. 
-    This is described in the sub-section <seealso marker="#typeinrecords">"Type information in record declarations"</seealso> below.
+    Records are extended to possibly contain type information.
+    This is described in <seealso marker="#typeinrecords">
+    Type Information in Record Declarations</seealso>.
   </p>
   <note>
-	  <p>Map types, both <c>map()</c> and <c>#{ ... }</c>, are considered experimental during OTP 17.</p>
-	  <p>No type information of maps pairs, only the containing map types, are used by Dialyzer in OTP 17.</p>
+    <p>Map types, both <c>map()</c> and <c>#{...}</c>,
+      are considered experimental during OTP 17.</p>
+    <p>No type information of maps pairs, only the containing map types,
+      are used by Dialyzer in OTP 17.</p>
   </note>
   </section>
-  
+
   <section>
-    <title>Type declarations of user-defined types</title>
+    <title>Type Declarations of User-Defined Types</title>
     <p>
       As seen, the basic syntax of a type is an atom followed by closed
-      parentheses. New types are declared using '-type' and '-opaque'
+      parentheses. New types are declared using <c>-type</c> and <c>-opaque</c>
       compiler attributes as in the following:
     </p>
     <pre>
   -type my_struct_type() :: Type.
   -opaque my_opaq_type() :: Type.</pre>
     <p>
-      where the type name is an atom (<c>'my_struct_type'</c> in the above)
-      followed by parentheses. Type is a type as defined in the
+      The type name is the atom <c>my_struct_type</c>,
+      followed by parentheses. <c>Type</c> is a type as defined in the
       previous section.
-      A current restriction is that Type can contain only predefined types,
-      or user-defined types which are either module-local (i.e., with a
-      definition that is present in the code of the module) or are remote
-      types (i.e., types defined in and exported by other modules; see below).
-      For module-local types, the restriction that their definition
+      A current restriction is that <c>Type</c> can contain
+      only predefined types,
+      or user-defined types which are either of the following:
+    </p>
+    <list type="bulleted">
+      <item>Module-local type, that is, with a
+      definition that is present in the code of the module</item>
+      <item>Remote type, that is, type defined in, and exported by,
+      other modules; more about this soon.</item>
+    </list>
+    <p>For module-local types, the restriction that their definition
       exists in the module is enforced by the compiler and results in a
-      compilation error. (A similar restriction currently exists for records.)
-    </p>
+      compilation error. (A similar restriction currently exists for records.)    </p>
     <p>
       Type declarations can also be parameterized by including type variables
       between the parentheses. The syntax of type variables is the same as
-      Erlang variables (starts with an upper case letter).
-      Naturally, these variables can - and should - appear on the RHS of the
-      definition. A concrete example appears below:
+      Erlang variables, that is, starts with an upper-case letter.
+      Naturally, these variables can - and is to - appear on the RHS of the
+      definition. A concrete example follows:
     </p>
     <pre>
   -type orddict(Key, Val) :: [{Key, Val}].</pre>
     <p>
-      A module can export some types in order to declare that other modules
+      A module can export some types to declare that other modules
       are allowed to refer to them as <em>remote types</em>.
-      This declaration has the following form:
+      This declaration has the following form:</p>
       <pre>
   -export_type([T1/A1, ..., Tk/Ak]).</pre>
-      where the Ti's are atoms (the name of the type) and the Ai's are their
-      arguments.  An example is given below:
+    <p>Here the Ti's are atoms (the name of the type) and the Ai's are their
+      arguments</p>
+      <p><em>Example:</em></p>
       <pre>
   -export_type([my_struct_type/0, orddict/2]).</pre>
-      Assuming that these types are exported from module <c>'mod'</c> then
-      one can refer to them from other modules using remote type expressions
-      like those below:
+    <p>Assuming that these types are exported from module <c>'mod'</c>,
+      you can refer to them from other modules using remote type expressions
+      like the following:</p>
       <pre>
   mod:my_struct_type()
   mod:orddict(atom(), term())</pre>
-      One is not allowed to refer to types which are not declared as exported.
+    <p>It is not allowed to refer to types that are not declared as exported.
     </p>
     <p>
       Types declared as <c>opaque</c> represent sets of terms whose
-      structure is not supposed to be visible in any way outside of
-      their defining module (i.e., only the module defining them is
-      allowed to depend on their term structure). Consequently, such
+      structure is not supposed to be visible from outside of
+      their defining module. That is, only the module defining them
+      is allowed to depend on their term structure. Consequently, such
       types do not make much sense as module local - module local
-      types are not accessible by other modules anyway - and should
-      always be exported.
+      types are not accessible by other modules anyway - and is
+      always to be exported.
     </p>
   </section>
-  
-  <marker id="typeinrecords"/>
+
   <section>
-    <title>Type information in record declarations</title>
+    <marker id="typeinrecords"/>
+    <title>Type Information in Record Declarations</title>
     <p>
-      The types of record fields can be specified in the declaration of the 
-      record. The syntax for this is:
+      The types of record fields can be specified in the declaration of the
+      record. The syntax for this is as follows:
     </p>
     <pre>
   -record(rec, {field1 :: Type1, field2, field3 :: Type3}).</pre>
     <p>
       For fields without type annotations, their type defaults to any(). 
-      I.e., the above is a shorthand for:
+      That is, the previous example is a shorthand for the following:
     </p>
     <pre>
   -record(rec, {field1 :: Type1, field2 :: any(), field3 :: Type3}).</pre>
     <p>
       In the presence of initial values for fields, 
-      the type must be declared after the initialization as in the following:
+      the type must be declared after the initialization, as follows:
     </p>
     <pre>
   -record(rec, {field1 = [] :: Type1, field2, field3 = 42 :: Type3}).</pre>
     <p>
-      Naturally, the initial values for fields should be compatible 
-      with (i.e. a member of) the corresponding types. 
-      This is checked by the compiler and results in a compilation error 
-      if a violation is detected. For fields without initial values, 
-      the singleton type <c>'undefined'</c> is added to all declared types. 
+      The initial values for fields are to be compatible
+      with (that is, a member of) the corresponding types.
+      This is checked by the compiler and results in a compilation error
+      if a violation is detected. For fields without initial values,
+      the singleton type <c>'undefined'</c> is added to all declared types.
       In other words, the following two record declarations have identical 
       effects:
     </p>
@@ -396,13 +416,13 @@
     </p>
     <p>
       Any record, containing type information or not, once defined, 
-      can be used as a type using the syntax:
+      can be used as a type using the following syntax:
     </p>
     <pre>  #rec{}</pre>
     <p>
       In addition, the record fields can be further specified when using 
-      a record type by adding type information about the field in
-      the following manner:
+      a record type by adding type information about the field
+      as follows:
     </p>
     <pre>  #rec{some_field :: Type}</pre>
     <p>
@@ -412,16 +432,16 @@
   </section>
 	
   <section>
-    <title>Specifications for functions</title>
+    <title>Specifications for Functions</title>
     <p>
       A specification (or contract) for a function is given using the new 
-      compiler attribute <c>'-spec'</c>. The general format is as follows:
+      compiler attribute <c>-spec</c>. The general format is as follows:
     </p>
     <pre>
   -spec Module:Function(ArgType1, ..., ArgTypeN) -> ReturnType.</pre>
     <p>
-      The arity of the function has to match the number of arguments, 
-      or else a compilation error occurs.
+      The arity of the function must match the number of arguments,
+      else a compilation error occurs.
     </p>
     <p>
       This form can also be used in header files (.hrl) to declare type 
@@ -430,7 +450,7 @@
       explicitly) import these functions.
     </p>
     <p>
-      For most uses within a given module, the following shorthand suffices:
+      Within a given module, the following shorthand suffice in most cases:
     </p>
     <pre>
   -spec Function(ArgType1, ..., ArgTypeN) -> ReturnType.</pre>
@@ -448,8 +468,8 @@
          ; (T4, T5) -> T6.</pre>
     <p>
       A current restriction, which currently results in a warning 
-      (OBS: not an error) by the compiler, is that the domains of
-      the argument types cannot be overlapping.
+      (not an error) by the compiler, is that the domains of
+      the argument types cannot overlap.
       For example, the following specification results in a warning:
     </p>
     <pre>
@@ -464,62 +484,67 @@
     <pre>
   -spec id(X) -> X.</pre>
     <p>
-      However, note that the above specification does not restrict the input 
-      and output type in any way. 
-      We can constrain these types by guard-like subtype constraints
+      Notice that the above specification does not restrict the input
+      and output type in any way.
+      These types can be constrained by guard-like subtype constraints
       and provide bounded quantification:
     </p>
     <pre>  -spec id(X) -> X when X :: tuple().</pre>
     <p>
       Currently, the <c>::</c> constraint (read as <c>is_subtype</c>) is
-      the only guard constraint which can be used in the <c>'when'</c>
+      the only guard constraint that can be used in the <c>'when'</c>
       part of a <c>'-spec'</c> attribute.
     </p>
     <note>
       <p>
-      The above function specification, using multiple occurrences of
-      the same type variable, provides more type information than the
-      function specification below where the type variables are missing:
+      The above function specification uses multiple occurrences of
+      the same type variable. That provides more type information than the
+      following function specification, where the type variables are missing:
       </p>
       <pre>  -spec id(tuple()) -> tuple().</pre>
       <p>
 	The latter specification says that the function takes some tuple
-	and returns some tuple, while the one with the <c>X</c> type
+	and returns some tuple. The specification with the <c>X</c> type
 	variable specifies that the function takes a tuple and returns
 	<em>the same</em> tuple.
       </p>
       <p>
-	However, it's up to the tools that process the specs to choose
-	whether to take this extra information into account or ignore it.
+	However, it is up to the tools that process the specificationss
+        to choose whether to take this extra information into account
+        or not.
       </p>
     </note>
     <p>
-      The scope of an <c>::</c> constraint is the 
-      <c>(...) -> RetType</c> 
-      specification after which it appears. To avoid confusion, 
-      we suggest that different variables are used in different
-      constituents of an overloaded contract as in the example below:
+      The scope of a <c>::</c> constraint is the
+      <c>(...) -> RetType</c>
+      specification after which it appears. To avoid confusion,
+      it is suggested that different variables are used in different
+      constituents of an overloaded contract, as shown in the
+      following example:
     </p>
     <pre>
   -spec foo({X, integer()}) -> X when X :: atom()
          ; ([Y]) -> Y when Y :: number().</pre>
     <note>
+      <p>
       For backwards compatibility the following form is also allowed:
+      </p>
       <pre>  -spec id(X) -> X when is_subtype(X, tuple()).</pre>
       <p>
-	but its use is discouraged. It will be taken out in a future
+	but its use is discouraged. It will be removed in a future
 	Erlang/OTP release.
       </p>
     </note>
     <p>
       Some functions in Erlang are not meant to return; 
       either because they define servers or because they are used to 
-      throw exceptions as the function below:
+      throw exceptions, as in the following function:
     </p>
     <pre>  my_error(Err) -> erlang:throw({error, Err}).</pre>
     <p>
-      For such functions we recommend the use of the special <c>no_return()</c>
-      type for their "return", via a contract of the form:
+      For such functions, it is recommended to use the special
+      <c>no_return()</c> type for their "return", through a contract
+      of the following form:
     </p>
     <pre>  -spec my_error(term()) -> no_return().</pre>
   </section>
diff --git a/system/doc/system_principles/create_target.xmlsrc b/system/doc/system_principles/create_target.xmlsrc
index a8ee2d1245..7c566229ac 100644
--- a/system/doc/system_principles/create_target.xmlsrc
+++ b/system/doc/system_principles/create_target.xmlsrc
@@ -31,55 +31,54 @@
     <rev>A</rev>
     <file>create_target.xml</file>
   </header>
+  <marker id="creating upgrading target system"></marker>
 
-  <section>
-    <title>Introduction</title>
-    <p>When creating a system using Erlang/OTP, the most simple way is
-      to install Erlang/OTP somewhere, install the application specific
+    <p>When creating a system using Erlang/OTP, the simplest way is
+      to install Erlang/OTP somewhere, install the application-specific
       code somewhere else, and then start the Erlang runtime system,
-      making sure the code path includes the application specific code.</p>
-    <p>Often it is not desirable to use an Erlang/OTP system as is. A
-      developer may create new Erlang/OTP compliant applications for a
+      making sure the code path includes the application-specific code.</p>
+    <p>It is often not desirable to use an Erlang/OTP system as is. A
+      developer can create new Erlang/OTP-compliant applications for a
       particular purpose, and several original Erlang/OTP applications
-      may be irrelevant for the purpose in question. Thus, there is a
+      can be irrelevant for the purpose in question. Thus, there is a
       need to be able to create a new system based on a given
-      Erlang/OTP system, where dispensable applications are removed,
-      and a set of new applications are included. Documentation and
+      Erlang/OTP system, where dispensable applications are removed
+      and new applications are included. Documentation and
       source code is irrelevant and is therefore not included in the
       new system.</p>
-    <p>This chapter is about creating such a system, which we call a
+    <p>This chapter is about creating such a system, which is called a
       <em>target system</em>.</p>
-    <p>In the following sections we consider creating target systems with
-      different requirements of functionality:</p>
+    <p>The following sections deal with target systems
+      with different requirements of functionality:</p>
     <list type="bulleted">
-      <item>a <em>basic target system</em> that can be started by
-       calling the ordinary <c>erl</c> script, </item>
-      <item>a <em>simple target system</em> where also code
-       replacement in run-time can be performed, and</item>
-      <item>an <em>embedded target system</em> where there is also
+      <item>A <em>basic target system</em> that can be started by
+       calling the ordinary <c>erl</c> script.</item>
+      <item>A <em>simple target system</em> where also code
+       replacement in runtime can be performed.</item>
+      <item>An <em>embedded target system</em> where there is also
        support for logging output from the system to file for later
        inspection, and where the system can be started automatically
-       at boot time. </item>
+       at boot time.</item>
     </list>
-    <p>We only consider the case when Erlang/OTP is running on a UNIX
-      system.</p>
-    <p>In the <c>sasl</c> application there is an example Erlang
-      module <c>target_system.erl</c> that contains functions for
-      creating and installing a target system.  This module is used in
-      the examples below, and the source code of the module is listed
-      at the end of this chapter.</p>
-  </section>
+    <p>Here is only considered the case when Erlang/OTP is running on a
+      UNIX system.</p>
+    <p>The <c>sasl</c> application includes the example Erlang
+      module <c>target_system.erl</c>, which contains functions for
+      creating and installing a target system. This module is used in
+      the following examples. The source code of the module is listed
+      in <seealso marker="#listing of target system">
+      Listing of target_system.erl</seealso></p>
 
   <section>
     <marker id="create"/>
     <title>Creating a Target System</title>
     <p>It is assumed that you have a working Erlang/OTP system structured
-      according to the OTP Design Principles.</p>
-    <p><em>Step 1.</em> First create a <c>.rel</c> file (see <seealso
-      marker="sasl:rel">rel(4)</seealso>) that specifies the <c>erts</c>
-      version and lists all applications that should be included in the
-      new basic target system. An example is the following
-      <c>mysystem.rel</c> file:</p>
+      according to the OTP design principles.</p>
+    <p><em>Step 1.</em> Create a <c>.rel</c> file (see the
+      <seealso marker="sasl:rel">rel(4)</seealso> manual page in
+      SASL), which specifies the ERTS version and lists
+      all applications that are to be included in the new basic target
+      system. An example is the following <c>mysystem.rel</c> file:</p>
     <code type="none">
 %% mysystem.rel
 {release,
@@ -91,23 +90,23 @@
   {pea, "1.0"}]}.</code>
     <p>The listed applications are not only original Erlang/OTP
       applications but possibly also new applications that you have
-      written yourself (here exemplified by the application
-      <c>pea</c>). </p>
-    <p><em>Step 2.</em> From the directory where the <c>mysystem.rel</c>
-      file reside, start the Erlang/OTP system:</p>
+      written (here exemplified by the application Pea (<c>pea</c>)).</p>
+    <p><em>Step 2.</em> Start Erlang/OTP from the directory where
+      the <c>mysystem.rel</c> file resides:</p>
     <pre>
 os> <input>erl -pa /home/user/target_system/myapps/pea-1.0/ebin</input></pre>
-    <p>where also the path to the <c>pea-1.0</c> ebin directory is
-      provided. </p>
-    <p><em>Step 3.</em> Now create the target system: </p>
+    <p>Here also the path to the <c>pea-1.0</c> ebin directory is
+      provided.</p>
+    <p><em>Step 3.</em> Create the target system:</p>
     <pre>
 1> <input>target_system:create("mysystem").</input></pre>
-    <p>The <c>target_system:create/1</c> function does the following:</p>
+    <p>The function <c>target_system:create/1</c> performs the
+      following:</p>
     <list type="ordered">
-      <item>Reads the <c>mysystem.rel</c> file, and creates a new file
-      <c>plain.rel</c> which is identical to former, except that it
-       only lists the <c>kernel</c> and <c>stdlib</c> applications. </item>
-      <item>From the <c>mysystem.rel</c> and <c>plain.rel</c> files
+      <item>Reads the file <c>mysystem.rel</c> and creates a new file
+      <c>plain.rel</c> that is identical to the former, except that it
+       only lists the Kernel and STDLIB applications.</item>
+      <item>From the files <c>mysystem.rel</c> and <c>plain.rel</c>
        creates the files <c>mysystem.script</c>,
       <c>mysystem.boot</c>, <c>plain.script</c>, and
       <c>plain.boot</c> through a call to
@@ -124,26 +123,26 @@ releases/mysystem.rel
 lib/kernel-2.16.4/
 lib/stdlib-1.19.4/
 lib/sasl-2.3.4/
-lib/pea-1.0/        </code>
+lib/pea-1.0/</code>
         <p>The file <c>releases/FIRST/start.boot</c> is a copy of our
           <c>mysystem.boot</c></p>
 	<p>The release resource file <c>mysystem.rel</c> is duplicated
           in the tar file. Originally, this file was only stored in
-          the <c>releases</c> directory in order to make it possible
+          the <c>releases</c> directory to make it possible
           for the <c>release_handler</c> to extract this file
           separately. After unpacking the tar
           file, <c>release_handler</c> would automatically copy the
           file to <c>releases/FIRST</c>. However, sometimes the tar
           file is unpacked without involving
-          the <c>release_handler</c> (e.g. when unpacking the first
-          target system) and therefore the file is now instead
+          the <c>release_handler</c> (for example, when unpacking the
+          first target system). The file is therefore now instead
           duplicated in the tar file so no manual copying is
-          necessary.</p>
+          needed.</p>
       </item>
-      <item>Creates the temporary directory <c>tmp</c> and extracts the tar file
-      <c>mysystem.tar.gz</c> into that directory. </item>
-      <item>Deletes the <c>erl</c> and <c>start</c> files from
-      <c>tmp/erts-5.10.4/bin</c>. These files will be created again from
+      <item>Creates the temporary directory <c>tmp</c> and extracts
+      the tar file <c>mysystem.tar.gz</c> into that directory.</item>
+      <item>Deletes the files <c>erl</c> and <c>start</c> from
+      <c>tmp/erts-5.10.4/bin</c>. These files are created again from
       source when installing the release.</item>
       <item>Creates the directory <c>tmp/bin</c>.</item>
       <item>Copies the previously created file <c>plain.boot</c> to
@@ -151,31 +150,31 @@ lib/pea-1.0/        </code>
       <item>Copies the files <c>epmd</c>, <c>run_erl</c>, and
       <c>to_erl</c> from the directory <c>tmp/erts-5.10.4/bin</c> to
        the directory <c>tmp/bin</c>.</item>
-      <item>Creates the directory <c>tmp/log</c>, which will be used
+      <item>Creates the directory <c>tmp/log</c>, which is used
        if the system is started as embedded with the <c>bin/start</c>
        script.</item>
       <item>Creates the file <c>tmp/releases/start_erl.data</c> with
        the contents "5.10.4 FIRST". This file is to be passed as data
-       file to the <c>start_erl</c> script.
-      </item>
+       file to the <c>start_erl</c> script.</item>
       <item>Recreates the file <c>mysystem.tar.gz</c> from the directories
-       in the directory <c>tmp</c>, and removes <c>tmp</c>.</item>
+       in the directory <c>tmp</c> and removes <c>tmp</c>.</item>
     </list>
   </section>
 
   <section>
     <title>Installing a Target System</title>
     <p><em>Step 4.</em> Install the created target system in a
-      suitable directory. </p>
+      suitable directory.</p>
     <pre>
 2> <input>target_system:install("mysystem", "/usr/local/erl-target").</input></pre>
-    <p>The function <c>target_system:install/2</c> does the following:
+    <p>The function <c>target_system:install/2</c> performs the following:
       </p>
     <list type="ordered">
       <item>Extracts the tar file <c>mysystem.tar.gz</c> into the target
        directory <c>/usr/local/erl-target</c>.</item>
-      <item>In the target directory reads the file <c>releases/start_erl.data</c>
-       in order to find the Erlang runtime system version ("5.10.4").</item>
+      <item>In the target directory reads the file
+      <c>releases/start_erl.data</c> to find the Erlang runtime system
+       version ("5.10.4").</item>
       <item>Substitutes <c>%FINAL_ROOTDIR%</c> and <c>%EMU%</c> for
       <c>/usr/local/erl-target</c> and <c>beam</c>, respectively, in
        the files <c>erl.src</c>, <c>start.src</c>, and
@@ -184,97 +183,102 @@ lib/pea-1.0/        </code>
       <c>start</c>, and <c>run_erl</c> in the target <c>bin</c>
        directory.</item>
       <item>Finally the target <c>releases/RELEASES</c> file is created
-       from data in the <c>releases/mysystem.rel</c> file.</item>
+       from data in the file <c>releases/mysystem.rel</c>.</item>
     </list>
   </section>
 
   <section>
     <marker id="start"/>
     <title>Starting a Target System</title>
-    <p>Now we have a target system that can be started in various ways.</p>
-    <p>We start it as a <em>basic target system</em> by invoking</p>
+    <p>Now we have a target system that can be started in various ways.
+      We start it as a <em>basic target system</em> by invoking:</p>
     <pre>
 os> <input>/usr/local/erl-target/bin/erl</input></pre>
-    <p>where only the <c>kernel</c> and <c>stdlib</c> applications are
-      started, i.e. the system is started as an ordinary development
-      system. There are only two files needed for all this to work:
-      <c>bin/erl</c> file (obtained from <c>erts-5.10.4/bin/erl.src</c>)
-      and the <c>bin/start.boot</c> file (a copy of <c>plain.boot</c>).</p>
+    <p>Here only the Kernel and STDLIB applications are
+      started, that is, the system is started as an ordinary development
+      system. Only two files are needed for all this to work:</p>
+      <list type="ordered">
+	<item><c>bin/erl</c> (obtained from
+	<c>erts-5.10.4/bin/erl.src</c>)</item>
+	<item><c>bin/start.boot</c> (a copy of
+	<c>plain.boot</c>)</item>
+      </list>
     <p>We can also start a distributed system (requires <c>bin/epmd</c>).</p>
     <p>To start all applications specified in the original
-      <c>mysystem.rel</c> file, use the <c>-boot</c> flag as follows:</p>
+      <c>mysystem.rel</c> file, use flag <c>-boot</c> as follows:</p>
     <pre>
 os> <input>/usr/local/erl-target/bin/erl -boot /usr/local/erl-target/releases/FIRST/start</input></pre>
-    <p>We start a <em>simple target system</em> as above. The only difference
-      is that also the file <c>releases/RELEASES</c> is present for
-      code replacement in run-time to work.</p>
-    <p>To start an <em>embedded target system</em> the shell script
-      <c>bin/start</c> is used. That shell script calls
+    <p>We start a <em>simple target system</em> as above. The only
+      difference is that also the file <c>releases/RELEASES</c> is
+      present for code replacement in runtime to work.</p>
+    <p>To start an <em>embedded target system</em>, the shell script
+      <c>bin/start</c> is used. The script calls
       <c>bin/run_erl</c>, which in turn calls <c>bin/start_erl</c>
       (roughly, <c>start_erl</c> is an embedded variant of
-      <c>erl</c>). </p>
+      <c>erl</c>).</p>
     <p>The shell script <c>start</c>, which is generated from
       erts-5.10.4/bin/start.src during installation, is only an
-      example. You should edit it to suite your needs. Typically it is
+      example. Edit it to suite your needs. Typically it is
       executed when the UNIX system boots.</p>
     <p><c>run_erl</c> is a wrapper that provides logging of output from
-      the run-time system to file. It also provides a simple mechanism
+      the runtime system to file. It also provides a simple mechanism
       for attaching to the Erlang shell (<c>to_erl</c>).</p>
-    <p><c>start_erl</c> requires the root directory
-      (<c>"/usr/local/erl-target"</c>), the releases directory
-      (<c>"/usr/local/erl-target/releases"</c>), and the location of
-      the <c>start_erl.data</c> file. It reads the run-time system
-      version (<c>"5.10.4"</c>) and release version (<c>"FIRST"</c>) from
-      the <c>start_erl.data</c> file, starts the run-time system of the
-      version found, and provides <c>-boot</c> flag specifying the boot
-      file of the release version found
-      (<c>"releases/FIRST/start.boot"</c>).</p>
-    <p><c>start_erl</c> also assumes that there is <c>sys.config</c> in
-      release version directory (<c>"releases/FIRST/sys.config"</c>). That
-      is the topic of the next section (see below).</p>
-    <p>The <c>start_erl</c> shell script should normally not be
+    <p><c>start_erl</c> requires:</p>
+     <list type="ordered">
+	<item>The root directory (<c>"/usr/local/erl-target"</c>)</item>
+	<item>The releases directory
+	(<c>"/usr/local/erl-target/releases"</c></item>
+	<item>The location of the file <c>start_erl.data</c></item>
+     </list>
+     <p>It performs the following:</p>
+     <list type="ordered">
+	<item>Reads the runtime system version (<c>"5.10.4"</c>) and
+	release version (<c>"FIRST"</c>) from the file
+	<c>start_erl.data</c>.</item>
+	<item>Starts the runtime system of the version found.</item>
+	<item>Provides the flag <c>-boot</c> specifying the boot
+	file of the release version found
+	(<c>"releases/FIRST/start.boot"</c>).</item>
+     </list>
+    <p><c>start_erl</c> also assumes that there is <c>sys.config</c>
+      in the release version directory (<c>"releases/FIRST/sys.config"</c>).
+      That is the topic of the next section.</p>
+    <p>The <c>start_erl</c> shell script is normally not to be
       altered by the user.</p>
   </section>
 
   <section>
     <title>System Configuration Parameters</title>
-    <p>As was pointed out above <c>start_erl</c> requires a
-      <c>sys.config</c> in the release version directory
-      (<c>"releases/FIRST/sys.config"</c>). If there is no such a
-      file, the system start will fail. Hence such a file has to
-      be added as well.</p>
-    <p></p>
-    <p>If you have system configuration data that are neither file
-      location dependent nor site dependent, it may be convenient to
-      create the <c>sys.config</c> early, so that it becomes a part of
+    <p>As was mentioned in the previous section, <c>start_erl</c>
+      requires a <c>sys.config</c> in the release version directory
+      (<c>"releases/FIRST/sys.config"</c>). If there is no such
+      file, the system start fails. Such a file must therefore
+      also be added.</p>
+    <p>If you have system configuration data that is neither
+      file-location-dependent nor site-dependent, it can be convenient
+      to create <c>sys.config</c> early, so it becomes part of
       the target system tar file created by
-      <c>target_system:create/1</c>. In fact, if you create, in the
-      current directory, not only the <c>mysystem.rel</c> file, but
-      also a <c>sys.config</c> file, that latter file will be tacitly
+      <c>target_system:create/1</c>. In fact, if you in the
+      current directory create not only the file <c>mysystem.rel</c>,
+      but also file <c>sys.config</c>, the latter file is tacitly
       put in the appropriate directory.</p>
   </section>
 
   <section>
-    <title>Differences from the Install Script</title>
-    <p>The above <c>install/2</c> procedure differs somewhat from that
+    <title>Differences From the Install Script</title>
+    <p>The previous <c>install/2</c> procedure differs somewhat from that
       of the ordinary <c>Install</c> shell script. In fact, <c>create/1</c>
       makes the release package as complete as possible, and leave to the
-      <c>install/2</c> procedure to finish by only considering location
-      dependent files.</p>
+      <c>install/2</c> procedure to finish by only considering
+      location-dependent files.</p>
   </section>
 
   <section>
     <title>Creating the Next Version</title>
-
-    <p>
-      In this example the <c>pea</c> application has been changed, and
-      so are <c>erts</c>, <c>kernel</c>, <c>stdlib</c> and
-      <c>sasl</c>.
-    </p>
-
-    <p>
-      <em>Step 1.</em> Create the <c>.rel</c> file:
-    </p>
+    <p>In this example the Pea application has been changed, and
+      so are the applications ERTS, Kernel, STDLIB
+      and SASL.</p>
+    <p><em>Step 1.</em> Create the file <c>.rel</c>:</p>
     <code type="none">
 %% mysystem2.rel
 {release,
@@ -284,65 +288,49 @@ os> <input>/usr/local/erl-target/bin/erl -boot /usr/local/erl-target/releases/FI
   {stdlib, "2.0"},
   {sasl, "2.4"},
   {pea, "2.0"}]}.</code>
-    <p>
-      <em>Step 2.</em> Create the application upgrade file (see
-      <seealso marker="sasl:appup">appup(4)</seealso>) for <c>pea</c>,
-      for example:
-    </p>
+    <p><em>Step 2.</em> Create the application upgrade file (see the
+      <seealso marker="sasl:appup">appup(4)</seealso> manual page in
+      SASL) for Pea, for example:</p>
     <code type="none">
 %% pea.appup
 {"2.0",
  [{"1.0",[{load_module,pea_lib}]}],
  [{"1.0",[{load_module,pea_lib}]}]}.</code>
-    <p>
-      <em>Step 3.</em> From the directory where the
-      <c>mysystem2.rel</c> file reside, start the Erlang/OTP system:
-    </p>
+    <p><em>Step 3.</em> From the directory where the file
+      <c>mysystem2.rel</c> resides, start the Erlang/OTP system,
+      giving the path to the new version of Pea:</p>
     <pre>
 os> <input>erl -pa /home/user/target_system/myapps/pea-2.0/ebin</input></pre>
-    <p>giving the path to the new version of <c>pea</c>. </p>
-
-    <p>
-      <em>Step 4.</em> Create the release upgrade file (see <seealso
-      marker="sasl:relup">relup(4)</seealso>):
-    </p>
+    <p><em>Step 4.</em> Create the release upgrade file (see the
+      <seealso marker="sasl:relup">relup(4)</seealso> manual page in
+      SASL):</p>
     <pre>
-1> <input>systools:make_relup("mysystem2",["mysystem"],["mysystem"],[{path,["/home/user/target_system/myapps/pea-1.0/ebin","/my/old/erlang/lib/*/ebin"]}]).</input></pre>
-    <p>
-      where <c>"mysystem"</c> is the base release and
-      <c>"mysystem2"</c> is the release to upgrade to.
-    </p>
-    <p>
-      Note that the <c>path</c> option is used for pointing out the
+1> <input>systools:make_relup("mysystem2",["mysystem"],["mysystem"],
+    [{path,["/home/user/target_system/myapps/pea-1.0/ebin",
+    "/my/old/erlang/lib/*/ebin"]}]).</input></pre>
+    <p>Here <c>"mysystem"</c> is the base release and
+      <c>"mysystem2"</c> is the release to upgrade to.</p>
+    <p>The <c>path</c> option is used for pointing out the
       old version of all applications. (The new versions are already
-      in the code path - assuming of course that the erlang node on
+      in the code path - assuming of course that the Erlang node on
       which this is executed is running the correct version of
-      Erlang/OTP.)
-    </p>
-    <p>
-      <em>Step 5.</em> Create the new release:
-    </p>
+      Erlang/OTP.)</p>
+    <p><em>Step 5.</em> Create the new release:</p>
     <pre>
 2> <input>target_system:create("mysystem2").</input></pre>
-    <p>
-      Given that the <c>relup</c> file generated in step 4 above is
-      now located in the current directory, it will automatically be
-      included in the release package.
-    </p>
+    <p>Given that the file <c>relup</c> generated in Step 4 is
+      now located in the current directory, it is automatically
+      included in the release package.</p>
   </section>
 
   <section>
     <title>Upgrading the Target System</title>
-    <p>
-      This part is done on the target node, and for this example we
+    <p>This part is done on the target node, and for this example we
       want the node to be running as an embedded system with the
-      <c>-heart</c> option, allowing automatic restart of the
-      node. See <seealso marker="#start">Starting a Target
-      System</seealso> above for more information.
-    </p>
-    <p>
-      We add <c>-heart</c> to <c>bin/start</c>:
-    </p>
+      <c>-heart</c> option, allowing automatic restart of the node.
+      For more information, see  <seealso marker="#start">
+      Starting a Target System</seealso>.</p>
+    <p>We add <c>-heart</c> to <c>bin/start</c>:</p>
     <code type="none">
 #!/bin/sh
 ROOTDIR=/usr/local/erl-target/
@@ -354,36 +342,27 @@ fi
 
 START_ERL_DATA=${1:-$RELDIR/start_erl.data}
 
-$ROOTDIR/bin/run_erl -daemon /tmp/ $ROOTDIR/log "exec $ROOTDIR/bin/start_erl $ROOTDIR $RELDIR $START_ERL_DATA -heart</code>
-    <p>
-      And we use the simplest possible <c>sys.config</c>, which we
-      store in <c>releases/FIRST</c>:
-    </p>
+$ROOTDIR/bin/run_erl -daemon /tmp/ $ROOTDIR/log "exec $ROOTDIR/bin/start_erl $ROOTDIR\
+$RELDIR $START_ERL_DATA -heart</code>
+    <p>We use the simplest possible <c>sys.config</c>, which we
+      store in <c>releases/FIRST</c>:</p>
     <code type="none">
 %% sys.config
 [].</code>
-    <p>
-      Finally, in order to prepare the upgrade, we need to put the new
+    <p>Finally, to prepare the upgrade, we must put the new
       release package in the <c>releases</c> directory of the first
-      target system:
-    </p>
+      target system:</p>
     <pre>
 os> <input>cp mysystem2.tar.gz /usr/local/erl-target/releases</input></pre>
-    <p>
-      And assuming that the node has been started like this:
-    </p>
+    <p>Assuming that the node has been started as follows:</p>
     <pre>
 os> <input>/usr/local/erl-target/bin/start</input></pre>
-    <p>
-      it can be accessed like this:
-    </p>
+    <p>It can be accessed as follows:</p>
     <pre>
 os> <input>/usr/local/erl-target/bin/to_erl /tmp/erlang.pipe.1</input></pre>
-    <p>
-      Also note that logs can be found in
+    <p>Logs can be found in
       <c>/usr/local/erl-target/log</c>. This directory is specified as
-      an argument to <c>run_erl</c>in the start script listed above.
-    </p>
+      an argument to <c>run_erl</c>in the start script listed above.</p>
     <p>
       <em>Step 1.</em> Unpack the release:
     </p>
@@ -402,18 +381,19 @@ heart: Tue Apr  1 12:15:11 2014: Executed "/usr/local/erl-target/bin/start /usr/
       The above return value and output after the call to
       <c>release_handler:install_release/1</c> means that the
       <c>release_handler</c> has restarted the node by using
-      <c>heart</c>. This will always be done when the upgrade involves
-      a change of <c>erts</c>, <c>kernel</c>, <c>stdlib</c> or
-      <c>sasl</c>. See <seealso marker="upgrade">Upgrade when
-      Erlang/OTP has Changed</seealso> for more infomation about this.
+      <c>heart</c>. This is always done when the upgrade involves
+      a change of the applications ERTS, Kernel,
+      STDLIB, or SASL. For more information, see
+      <seealso marker="upgrade">
+      Upgrade when Erlang/OTP has Changed</seealso>.
     </p>
     <p>
-      The node will be accessible via a new pipe:
+      The node is accessible through a new pipe:
     </p>
     <pre>
 os> <input>/usr/local/erl-target/bin/to_erl /tmp/erlang.pipe.2</input></pre>
     <p>
-      Let's see which releases we have in our system:
+      Check which releases there are in the system:
     </p>
     <pre>
 1> <input>release_handler:which_releases().</input>
@@ -426,7 +406,7 @@ os> <input>/usr/local/erl-target/bin/to_erl /tmp/erlang.pipe.2</input></pre>
     <p>
       Our new release, "SECOND", is now the current release, but we
       can also see that our "FIRST" release is still permanent. This
-      means that if the node would be restarted at this point, it
+      means that if the node would be restarted now, it
       would come up running the "FIRST" release again.
     </p>
     <p>
@@ -434,11 +414,9 @@ os> <input>/usr/local/erl-target/bin/to_erl /tmp/erlang.pipe.2</input></pre>
     </p>
     <pre>
 2> <input>release_handler:make_permanent("SECOND").</input></pre>
-
     <p>
-      Now look at the releases again:
+      Check the releases again:
     </p>
-
     <pre>
 3> <input>release_handler:which_releases().</input>
 <output>[{"MYSYSTEM","SECOND",
@@ -447,19 +425,16 @@ os> <input>/usr/local/erl-target/bin/to_erl /tmp/erlang.pipe.2</input></pre>
  {"MYSYSTEM","FIRST",
   ["kernel-2.16.4","stdlib-1.19.4","sasl-2.3.4","pea-1.0"],
   old}]</output></pre>
-
   <p>
-    Here we see that the new release version is <c>permanent</c>, so
-    it would be safe to restart the node.
-  </p>
-
+    We see that the new release version is <c>permanent</c>, so
+    it would be safe to restart the node.</p>
   </section>
 
   <section>
+    <marker id="listing of target system"/>
     <title>Listing of target_system.erl</title>
     <p>This module can also be found in the <c>examples</c> directory
-      of the <c>sasl</c> application.</p>
+      of the SASL application.</p>
     <codeinclude file="../../../lib/sasl/examples/src/target_system.erl" tag="%module" type="erl"></codeinclude>
-
   </section>
 </chapter>
diff --git a/system/doc/system_principles/error_logging.xml b/system/doc/system_principles/error_logging.xml
index 80d5211323..3a82f4e0e0 100644
--- a/system/doc/system_principles/error_logging.xml
+++ b/system/doc/system_principles/error_logging.xml
@@ -28,41 +28,43 @@
     <rev></rev>
     <file>error_logging.xml</file>
   </header>
+  <marker id="error logging"></marker>
 
   <section>
     <title>Error Information From the Runtime System</title>
     <p>Error information from the runtime system, that is, information
-      about a process terminating due to an uncaught error exception,
+      about a process terminating because of an uncaught error exception,
       is by default written to terminal (tty):</p>
     <code type="none"><![CDATA[
 =ERROR REPORT==== 9-Dec-2003::13:25:02 ===
 Error in process <0.27.0> with exit value: {{badmatch,[1,2,3]},[{m,f,1},{shell,eval_loop,2}]}]]></code>
     <p>The error information is handled by the <em>error logger</em>, a
       system process registered as <c>error_logger</c>. This process
-      receives all error messages from the Erlang runtime system and
-      also from the standard behaviours and different Erlang/OTP
+      receives all error messages from the Erlang runtime system as
+      well as from the standard behaviours and different Erlang/OTP
       applications.</p>
-    <p>The exit reasons (such as <c>badarg</c> above) used by
+    <p>The exit reasons (such as <c>badarg</c>) used by
       the runtime system are described in
-      <seealso marker="doc/reference_manual:errors#exit_reasons">Errors and Error Handling</seealso>
-      in the Erlang Reference Manual.</p>
-    <p>The process <c>error_logger</c> and its user interface (with
-      the same name) are described in
-      <seealso marker="kernel:error_logger">error_logger(3)</seealso>.
-      It is possible to configure the system so that error information
-      is written to file instead/as well as tty. Also, it is possible
-      for user defined applications to send and format error
-      information using <c>error_logger</c>.</p>
+      <seealso marker="doc/reference_manual:errors#exit_reasons">
+      Errors and Error Handling</seealso>.</p>
+    <p>For information about the process <c>error_logger</c> and its user
+      interface (with the same name), see the
+      <seealso marker="kernel:error_logger">error_logger(3)</seealso>
+      manual page in Kernel. The system can be configured so that
+      error information
+      is written to file or to tty, or both. In addition, user-defined
+      applications can send and format error information using
+      <c>error_logger</c>.</p>
   </section>
 
   <section>
     <title>SASL Error Logging</title>
-    <p>The standard behaviors (<c>supervisor</c>, <c>gen_server</c>,
-      etc.) sends progress and error information to <c>error_logger</c>.
-      If the SASL application is started, this information is written
-      to tty as well. See
+    <p>The standard behaviours (<c>supervisor</c>, <c>gen_server</c>,
+      and so on) send progress and error information to <c>error_logger</c>.
+      If the SASL application is started, this information is
+      written to tty as well. For more information, see
       <seealso marker="sasl:error_logging">SASL Error Logging</seealso>
-      in the SASL User's Guide for further information.</p>
+      in the SASL User's Guide.</p>
     <pre>
 % <input>erl -boot start_sasl</input>
 Erlang (BEAM) emulator version 5.4.13 [hipe] [threads:0] [kernel-poll]
diff --git a/system/doc/system_principles/system_principles.xml b/system/doc/system_principles/system_principles.xml
index 79ed86cd9f..70bb3cd441 100644
--- a/system/doc/system_principles/system_principles.xml
+++ b/system/doc/system_principles/system_principles.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>1996</year><year>2014</year>
+      <year>1996</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -28,35 +28,41 @@
     <rev></rev>
     <file>system_principles.xml</file>
   </header>
+  <marker id="system principles"></marker>
 
   <section>
     <title>Starting the System</title>
-    <p>An Erlang runtime system is started with the command <c>erl</c>:</p>
+    <p>An Erlang runtime system is started with command <c>erl</c>:</p>
     <pre>
 % <input>erl</input>
 Erlang/OTP 17 [erts-6.0] [hipe] [smp:8:8]
 
 Eshell V6.0  (abort with ^G)
 1> </pre>
-    <p><c>erl</c> understands a number of command line arguments, see
-      <c>erl(1)</c>. A number of them are also described in this chapter.</p>
-    <p>Application programs can access the values of the command line
-      arguments by calling one of the functions
-      <c>init:get_argument(Key)</c>, or <c>init:get_arguments()</c>.
-      See <c>init(3)</c>.</p>
+    <p><c>erl</c> understands a number of command-line arguments, see
+      the <seealso marker="erts:erl">erl(1)</seealso>  manual page in
+      ERTS. Some of them are also described in this chapter.</p>
+    <p>Application programs can access the values of the command-line
+      arguments by calling the function <c>init:get_argument(Key)</c>
+      or <c>init:get_arguments()</c>. See the
+      <seealso marker="erts:init">init(3)</seealso> manual page in
+      ERTS.</p>
   </section>
 
   <section>
     <title>Restarting and Stopping the System</title>
-    <p>The runtime system can be halted by calling <c>halt/0,1</c>.
-      See <c>erlang(3)</c>.</p>
-    <p>The module <c>init</c> contains function for restarting,
-      rebooting and stopping the runtime system. See <c>init(3)</c>.</p>
+    <p>The runtime system is halted by calling <c>halt/0,1</c>. For
+      details, see the <seealso marker="erts:erlang">erlang(3)</seealso>
+      manual page in ERTS.</p>
+    <p>The module <c>init</c> contains functions for restarting,
+      rebooting, and stopping the runtime system:</p>
     <pre>
 init:restart()
 init:reboot()
 init:stop()</pre>
-    <p>Also, the runtime system will terminate if the Erlang shell is
+    <p>For details, see the <seealso marker="erts:init">init(3)</seealso>
+      manual page in ERTS.</p>
+    <p>The runtime system terminates if the Erlang shell is
       terminated.</p>
   </section>
 
@@ -69,14 +75,15 @@ init:stop()</pre>
     <p>A boot script file has the extension <c>.script</c>.
       The runtime system uses a binary version of the script. This
       <em>binary boot script</em> file has the extension <c>.boot</c>.</p>
-    <p>Which boot script to use is specified by the command line flag
-      <c>-boot</c>. The extension <c>.boot</c> should be omitted.
-      Example, using the boot script <c>start_all.boot</c>:</p>
+    <p>Which boot script to use is specified by the command-line flag
+      <c>-boot</c>. The extension <c>.boot</c> is to be omitted.
+      For example, using the boot script <c>start_all.boot</c>:</p>
     <pre>
 % <input>erl -boot start_all</input></pre>
     <p>If no boot script is specified, it defaults to
-      <c>ROOT/bin/start</c>, see Default Boot Scripts below.</p>
-    <p>The command line flag <c>-init_debug</c> makes the <c>init</c>
+      <c>ROOT/bin/start</c>, see <seealso marker="#default_boot_scripts">
+      Default Boot Scripts</seealso>.</p>
+    <p>The command-line flag <c>-init_debug</c> makes the <c>init</c>
       process write some debug information while interpreting the boot
       script:</p>
     <pre>
@@ -87,59 +94,55 @@ init:stop()</pre>
 {start,heart}
 {start,error_logger}
 ...</pre>
-    <p>See <c>script(4)</c> for a detailed description of the syntax
-      and contents of the boot script.</p>
+    <p>For a detailed description of the syntax and contents of the
+    boot script, see the <c>script(4)</c> manual page in SASL.</p>
 
     <section>
+      <marker id="default_boot_scripts"></marker>
       <title>Default Boot Scripts</title>
-      <p>Erlang/OTP comes with two boot scripts:</p>
-      <taglist>
-        <tag><c>start_clean.boot</c></tag>
-        <item>
-          <p>Loads the code for and starts the applications Kernel and
-            STDLIB.</p>
-        </item>
-        <tag><c>start_sasl.boot</c></tag>
-        <item>
-          <p>Loads the code for and starts the applications Kernel,
-            STDLIB and SASL.</p>
-        </item>
-        <tag><c>no_dot_erlang.boot</c></tag>
-        <item>
-          <p>Loads the code for and starts the applications Kernel and
-          STDLIB, skips loading the <c>.erlang</c> file.
-	  Useful for scripts and other tools that should be behave the
-	  same regardless of user preferences.
-	  </p>
-        </item>
-      </taglist>
+      <p>Erlang/OTP comes with these boot scripts:</p>
+      <list type="bulleted">
+	<item><c>start_clean.boot</c> - Loads the code for and starts
+	the applications Kernel and STDLIB.</item>
+	<item><c>start_sasl.boot</c> - Loads the code for and starts
+	the applications Kernel, STDLIB, and
+	SASL).</item>
+	<item><c>no_dot_erlang.boot</c> - Loads the code for and
+	starts the applications Kernel and STDLIB.
+	Skips loading the file <c>.erlang</c>. Useful for scripts and
+	other tools that are to behave the same irrespective of user
+	preferences.</item>
+      </list>
       <p>Which of <c>start_clean</c> and <c>start_sasl</c> to use as
         default is decided by the user when installing Erlang/OTP using
         <c>Install</c>. The user is asked "Do you want to use a minimal
         system startup instead of the SASL startup". If the answer is
         yes, then <c>start_clean</c> is used, otherwise
-        <c>start_sasl</c> is used. A copy of the selected boot script
-        is made, named <c>start.boot</c> and placed in
-        the <c>ROOT/bin</c> directory.</p>
+        <c>start_sasl</c> is used. A copy of the selected boot script is
+	made, named <c>start.boot</c> and placed in directory
+        <c>ROOT/bin</c>.</p>
     </section>
 
     <section>
       <title>User-Defined Boot Scripts</title>
       <p>It is sometimes useful or necessary to create a user-defined
         boot script. This is true especially when running Erlang in
-        embedded mode, see <seealso marker="#code_loading">Code Loading Strategy</seealso>.</p>
-      <p>It is possible to write a boot script manually.
-        The recommended way to create a boot script, however, is to
-        generate the boot script from a release resource file
-        <c>Name.rel</c>, using the function
+        embedded mode, see <seealso marker="#code_loading">
+        Code Loading Strategy</seealso>.</p>
+      <p>A boot script can be written manually. However, it is
+        recommended to create a boot script by generating it from a
+        release resource file <c>Name.rel</c>, using the function
         <c>systools:make_script/1,2</c>. This requires that the source
         code is structured as applications according to the OTP design
         principles. (The program does not have to be started in terms of
-        OTP applications but can be plain Erlang).</p>
-      <p>Read more about <c>.rel</c> files in OTP Design Principles and
-        <c>rel(4)</c>.</p>
+        OTP applications, but can be plain Erlang).</p>
+      <p>For more information about <c>.rel</c> files, see
+        <seealso marker="doc/design_principles:release_handling">
+        OTP Design Principles</seealso> and the
+        <seealso marker="sasl:rel">rel(4)</seealso> manual page in
+	SASL.</p>
       <p>The binary boot script file <c>Name.boot</c> is generated from
-        the boot script file <c>Name.script</c> using the function
+        the boot script file <c>Name.script</c>, using the function
         <c>systools:script2boot(File)</c>.</p>
     </section>
   </section>
@@ -148,16 +151,17 @@ init:stop()</pre>
     <marker id="code_loading"></marker>
     <title>Code Loading Strategy</title>
     <p>The runtime system can be started in either <em>embedded</em> or
-      <em>interactive</em> mode. Which one is decided by the command
-      line flag <c>-mode</c>.</p>
+      <em>interactive</em> mode. Which one is decided by the
+      command-line flag <c>-mode</c>.</p>
     <pre>
 % <input>erl -mode embedded</input></pre>
     <p>Default mode is <c>interactive</c>.</p>
+    <p>The mode properties are as follows:</p>
     <list type="bulleted">
-      <item>In embedded mode, all code is loaded during system start-up
+      <item>In embedded mode, all code is loaded during system startup
        according to the boot script. (Code can also be loaded later
-       by explicitly ordering the code server to do so).</item>
-      <item>In interactive mode, code is dynamically loaded when first
+       by explicitly ordering the code server to do so.)</item>
+      <item>In interactive mode, the code is dynamically loaded when first
        referenced. When a call to a function in a module is made, and
        the module is not loaded, the code server searches the code path
        and loads the module into the system.</item>
@@ -165,21 +169,21 @@ init:stop()</pre>
     <p>Initially, the code path consists of the current
       working directory and all object code directories under
       <c>ROOT/lib</c>, where <c>ROOT</c> is the installation directory
-      of Erlang/OTP. Directories can be named <c>Name[-Vsn]</c> and
-      the code server, by default, chooses the directory with
+      of Erlang/OTP. Directories can be named <c>Name[-Vsn]</c>. The
+      code server, by default, chooses the directory with
       the highest version number among those which have the same
       <c>Name</c>. The <c>-Vsn</c> suffix is optional. If an
       <c>ebin</c> directory exists under the <c>Name[-Vsn]</c>
-      directory, it is this directory which is added to the code path.</p>
-    <p>The code path can be extended by using the command line flags
-      <c>-pa Directories</c> and <c>-pz Directories</c>. These will add
-      <c>Directories</c> to the head or end of the code path,
-      respectively. Example</p>
+      directory, this directory is added to the code path.</p>
+    <p>The code path can be extended by using the command-line flags
+      <c>-pa Directories</c> and <c>-pz Directories</c>. These add
+      <c>Directories</c> to the head or the end of the code path,
+      respectively. Example:</p>
     <pre>
 % <input>erl -pa /home/arne/mycode</input></pre>
     <p>The code server module <c>code</c> contains a number of
-      functions for modifying and checking the search path, see
-      <c>code(3)</c>.</p>
+      functions for modifying and checking the search path, see the
+      <c>code(3)</c> manual page in Kernel.</p>
   </section>
 
   <section>
@@ -192,49 +196,65 @@ init:stop()</pre>
         <cell align="left" valign="middle"><em>Documented in</em></cell>
       </row>
       <row>
-        <cell align="left" valign="middle">module</cell>
+        <cell align="left" valign="middle">Module</cell>
         <cell align="left" valign="middle"><c>.erl</c></cell>
-        <cell align="left" valign="middle">Erlang Reference Manual</cell>
+        <cell align="left" valign="middle">
+          <seealso marker="doc/reference_manual:modules">
+          Erlang Reference Manual</seealso></cell>
       </row>
       <row>
-        <cell align="left" valign="middle">include file</cell>
+        <cell align="left" valign="middle">Include file</cell>
         <cell align="left" valign="middle"><c>.hrl</c></cell>
-        <cell align="left" valign="middle">Erlang Reference Manual</cell>
+        <cell align="left" valign="middle">
+          <seealso marker="doc/reference_manual:modules">
+          Erlang Reference Manual</seealso></cell>
       </row>
       <row>
-        <cell align="left" valign="middle">release resource file</cell>
+        <cell align="left" valign="middle">Release resource file</cell>
         <cell align="left" valign="middle"><c>.rel</c></cell>
-        <cell align="left" valign="middle"><c>rel(4)</c></cell>
+        <cell align="left" valign="middle">
+          <seealso marker="sasl:rel">rel(4)</seealso>
+          manual page in SASL</cell>
       </row>
       <row>
-        <cell align="left" valign="middle">application resource file</cell>
+        <cell align="left" valign="middle">Application resource file</cell>
         <cell align="left" valign="middle"><c>.app</c></cell>
-        <cell align="left" valign="middle"><c>app(4)</c></cell>
+        <cell align="left" valign="middle">
+          <seealso marker="kernel:app">app(4)</seealso>
+          manual page in Kernel</cell>
       </row>
       <row>
-        <cell align="left" valign="middle">boot script</cell>
+        <cell align="left" valign="middle">Boot script</cell>
         <cell align="left" valign="middle"><c>.script</c></cell>
-        <cell align="left" valign="middle"><c>script(4)</c></cell>
+        <cell align="left" valign="middle">
+          <seealso marker="sasl:script">script(4)</seealso>
+          manual page in SASL</cell>
       </row>
       <row>
-        <cell align="left" valign="middle">binary boot script</cell>
+        <cell align="left" valign="middle">Binary boot script</cell>
         <cell align="left" valign="middle"><c>.boot</c></cell>
         <cell align="left" valign="middle">-</cell>
       </row>
       <row>
-        <cell align="left" valign="middle">configuration file</cell>
+        <cell align="left" valign="middle">Configuration file</cell>
         <cell align="left" valign="middle"><c>.config</c></cell>
-        <cell align="left" valign="middle"><c>config(4)</c></cell>
+        <cell align="left" valign="middle">
+          <seealso marker="kernel:config">config(4)</seealso>
+          manual page in Kernel</cell>
       </row>
       <row>
-        <cell align="left" valign="middle">application upgrade file</cell>
+        <cell align="left" valign="middle">Application upgrade file</cell>
         <cell align="left" valign="middle"><c>.appup</c></cell>
-        <cell align="left" valign="middle"><c>appup(4)</c></cell>
+        <cell align="left" valign="middle">
+          <seealso marker="sasl:appup">appup(4)</seealso>
+          manual page in SASL</cell>
       </row>
       <row>
-        <cell align="left" valign="middle">release upgrade file</cell>
+        <cell align="left" valign="middle">Release upgrade file</cell>
         <cell align="left" valign="middle"><c>relup</c></cell>
-        <cell align="left" valign="middle"><c>relup(4)</c></cell>
+        <cell align="left" valign="middle">
+          <seealso marker="sasl:relup">relup(4)</seealso>
+          manual page in SASL</cell>
       </row>
       <tcaption>File Types</tcaption>
     </table>
diff --git a/system/doc/system_principles/upgrade.xml b/system/doc/system_principles/upgrade.xml
index 68e48da0b8..83e8128f94 100644
--- a/system/doc/system_principles/upgrade.xml
+++ b/system/doc/system_principles/upgrade.xml
@@ -31,88 +31,72 @@
     <rev></rev>
     <file>upgrade.xml</file>
   </header>
+  <marker id="upgrade section"></marker>
 
   <section>
     <title>Introduction</title>
-    <p>
-      As of Erlang/OTP 17, most applications deliver a valid
-      application upgrade (<c>appup</c>) file. In earlier releases, a
+    <marker id="upgrade"></marker>
+    <p>As of Erlang/OTP 17, most applications deliver a valid
+      application upgrade file (<c>appup</c>). In earlier releases, a
       majority of the applications in Erlang/OTP did not support
-      upgrade at all. Many of the applications use the
+      upgrade. Many of the applications use the
       <c>restart_application</c> instruction. These are applications
       for which it is not crucial to support real soft upgrade, for
-      instance tools and library applications. The
+      example, tools and library applications. The
       <c>restart_application</c> instruction
       ensures that all modules in the application are reloaded and
-      thereby running the new code.
-    </p>
+      thereby running the new code.</p>
   </section>
 
   <section>
-    <title>Upgrade of core applications</title>
-    <p>
-      The core applications ERTS, Kernel, STDLIB
+    <title>Upgrade of Core Applications</title>
+    <p>The core applications ERTS, Kernel, STDLIB,
       and SASL never allow real soft upgrade, but require the
       Erlang emulator to be restarted. This is indicated to the
       <c>release_handler</c> by the upgrade instruction
-      <c>restart_new_emulator</c>. This instruction will always be the
-      very first instruction executed, and it will restart the
+      <c>restart_new_emulator</c>. This instruction is always the
+      very first instruction executed, and it restarts the
       emulator with the new versions of the above mentioned core
-      applications and the old versions of all other
-      applications. When the node is back up all other upgrade instructions are
+      applications and the old versions of all other applications.
+      When the node is back up, all other upgrade instructions are
       executed, making sure each application is finally running its
-      new version.
-    </p>
-
-    <p>
-      It might seem strange to do a two-step upgrade instead of
+      new version.</p>
+    <p>It might seem strange to do a two-step upgrade instead of
       just restarting the emulator with the new version of all
       applications. The reason for this design decision is to allow
-      <c>code_change</c> functions to have side effects, for example changing
-      data on disk. It also makes sure that the upgrade mechanism for
-      non-core applications does not differ depending on whether or not
-      core applications are changed at the same time.
-    </p>
-
-    <p>
-      If, however, the more brutal variant is preferred, it is
-      possible to handwrite the release upgrade file using only the
+      <c>code_change</c> functions to have side effects, for example,
+      changing data on disk. It also guarantees that the upgrade
+      mechanism for non-core applications does not differ depending
+      on whether or not core applications are changed at the same time.</p>
+    <p>If, however, the more brutal variant is preferred, the
+      the release upgrade file can be handwritten using only the
       single upgrade instruction <c>restart_emulator</c>. This
-      instruction, in contrast to <c>restart_new_emulator</c>, will
-      cause the emulator to restart with the new versions of
-      <em>all</em> applications.
-    </p>
-
-    <p>
-      <em>Note</em> that if other instructions are included before
+      instruction, in contrast to <c>restart_new_emulator</c>,
+      causes the emulator to restart with the new versions of
+      <em>all</em> applications.</p>
+    <p><em>Note:</em> If other instructions are included before
       <c>restart_emulator</c> in the handwritten <c>relup</c> file,
-      they will be executed in the old emulator. This is a big risk
+      they are executed in the old emulator. This is a big risk
       since there is no guarantee that new beam code can be loaded
       into the old emulator. Adding instructions after
       <c>restart_emulator</c> has no effect as the
-      <c>release_handler</c> will not do any attempt at executing
-      them.
-    </p>
-
-    <p>
-      See <seealso marker="sasl:relup">relup(4)</seealso> for
-      information about the release upgrade file, and <seealso
-      marker="sasl:appup">appup(4)</seealso> for further information
-      about upgrade instructions.
-    </p>
+      <c>release_handler</c> will not execute them.</p>
+    <p>For information about the release upgrade file, see the
+      <seealso marker="sasl:relup">relup(4)</seealso> manual page
+      in SASL.
+      For more information about upgrade instructions, see the
+      <seealso marker="sasl:appup">appup(4)</seealso> manual page
+      in SASL.</p>
   </section>
 
   <section>
-    <title>Applications that still do not allow code upgrade</title>
-    <p>
-      A few applications, for instance HiPE do not support
-      upgrade at all. This is indicated by an application upgrade file
-      containing only <c>{Vsn,[],[]}</c>. Any attempt at creating a release
-      upgrade file with such input will fail.
-      The only way to force an upgrade involving applications like this is to
-      handwrite the <c>relup</c> file, preferably as described above
-      with only the <c>restart_emulator</c> instruction.
-    </p>
-
+    <title>Applications that Still do Not Allow Code Upgrade</title>
+    <p>A few applications, such as HiPE, do not support upgrade.
+      This is indicated by an application upgrade file containing only
+      <c>{Vsn,[],[]}</c>. Any attempt at creating a release upgrade file
+      with such input fails. The only way to force an upgrade involving
+      applications like this is to
+      handwrite the file <c>relup</c>, preferably as described above
+      with only the <c>restart_emulator</c> instruction.</p>
   </section>
 </chapter>
diff --git a/system/doc/system_principles/versions.xml b/system/doc/system_principles/versions.xml
index ed6fd1f7fe..a0f13774ce 100644
--- a/system/doc/system_principles/versions.xml
+++ b/system/doc/system_principles/versions.xml
@@ -31,94 +31,100 @@
     <rev></rev>
     <file>versions.xml</file>
   </header>
-    <section><title>OTP Version</title>
+  <marker id="versions section"></marker>
+
+  <section>
+    <title>OTP Version</title>
     <p>As of OTP release 17, the OTP release number corresponds to
     the major part of the OTP version. The OTP version as a concept was
-    introduced in OTP 17. The <seealso marker="#version_scheme">version
-    scheme</seealso> used is described in more detail below.</p>
-
+    introduced in OTP 17. The version scheme used is described in detail in
+    <seealso marker="#version_scheme">Version Scheme</seealso>.</p>
     <p>OTP of a specific version is a set of applications of specific
     versions. The application versions identified by an OTP version
     corresponds to application versions that have been tested together
-    by the Erlang/OTP team at Ericsson AB. An OTP system can however be
+    by the Erlang/OTP team at Ericsson AB. An OTP system can, however, be
     put together with applications from different OTP versions. Such a
     combination of application versions has not been tested by the
     Erlang/OTP team. It is therefore <em>always preferred to use OTP
     applications from one single OTP version</em>.</p>
-
     <p>Release candidates have an <c>-rc&lt;N&gt;</c>
-    suffix. The suffix <c>-rc0</c> will be used during development up to
+    suffix. The suffix <c>-rc0</c> is used during development up to
     the first release candidate.</p>
 
-    <section><title>Retrieving Current OTP Version</title>
-    <p>In an OTP source code tree, the OTP version can be read from
-    the text file <c>&lt;OTP source root&gt;/OTP_VERSION</c>. The
-    absolute path to the file can be constructed by calling
-    <c>filename:join([<seealso marker="kernel:code#root_dir/0">code:root_dir()</seealso>, "OTP_VERSION"])</c>.</p>
-    <p>In an installed OTP development system, the OTP version can be read
-    from the text file <c>&lt;OTP installation root&gt;/releases/&lt;OTP release number&gt;/OTP_VERSION</c>.
-    The absolute path to the file can by constructed by calling
-    <c>filename:join([<seealso marker="kernel:code#root_dir/0">code:root_dir()</seealso>, "releases", <seealso marker="erts:erlang#system_info_otp_release">erlang:system_info(otp_release)</seealso>, "OTP_VERSION"]).</c></p>
-    <p>If the version read from the <c>OTP_VERSION</c> file in a
-    development system has a <c>**</c> suffix, the system has been
-    patched using the
-    <seealso marker="../installation_guide/OTP-PATCH-APPLY"><c>otp_patch_apply</c></seealso>
-    tool. In this case, the system consists of application
-    versions from multiple OTP versions. The version preceding the <c>**</c>
-    suffix corresponds to the OTP version of the base system that
-    has been patched. Note that if a development system is updated by
-    other means than <c>otp_patch_apply</c>, the <c>OTP_VERSION</c> file
-    may identify an incorrect OTP version.</p>
-
-    <p>No <c>OTP_VERSION</c> file will be placed in a
-    <seealso marker="create_target">target system</seealso> created
-    by OTP tools. This since one easily can create a target system
-    where it is hard to even determine the base OTP version. You may,
-    however, place such a file there yourself if you know the OTP
-    version.</p>
+    <section>
+      <title>Retrieving Current OTP Version</title>
+      <p>In an OTP source code tree, the OTP version can be read from
+      the text file <c>&lt;OTP source root&gt;/OTP_VERSION</c>. The
+      absolute path to the file can be constructed by calling
+      <c>filename:join([<seealso marker="kernel:code#root_dir/0">code:root_dir()</seealso>, "OTP_VERSION"])</c>.</p>
+      <p>In an installed OTP development system, the OTP version can be read
+      from the text file <c>&lt;OTP installation root&gt;/releases/&lt;OTP release number&gt;/OTP_VERSION</c>.
+      The absolute path to the file can by constructed by calling
+      <c>filename:join([<seealso marker="kernel:code#root_dir/0">code:root_dir()</seealso>, "releases", <seealso marker="erts:erlang#system_info_otp_release"> erlang:system_info(otp_release)</seealso>, "OTP_VERSION"]).</c></p>
+      <p>If the version read from the <c>OTP_VERSION</c> file in a
+      development system has a <c>**</c> suffix, the system has been
+      patched using the
+      <seealso marker="../installation_guide/OTP-PATCH-APPLY"><c>otp_patch_apply</c></seealso>
+      tool. In this case, the system consists of application
+      versions from multiple OTP versions. The version preceding the <c>**</c>
+      suffix corresponds to the OTP version of the base system that
+      has been patched. Notice that if a development system is updated by
+      other means than <c>otp_patch_apply</c>, the file <c>OTP_VERSION</c>
+      can identify an incorrect OTP version.</p>
+      <p>No <c>OTP_VERSION</c> file is placed in a
+      <seealso marker="create_target">target system</seealso> created
+      by OTP tools. This since one easily can create a target system
+      where it is hard to even determine the base OTP version. You can,
+      however, place such a file there if you know the OTP version.</p>
     </section>
 
-    <section><title>OTP Versions Table</title>
-    <p>The text file <c>&lt;OTP source root&gt;/otp_versions.table</c> that
-    is part of the source code contains information about all OTP versions
-    from OTP 17.0 up to current OTP version. Each line contains information
-    about application versions that are part of a specific OTP version, and
-    is on the format:</p>
-<pre>
-&lt;OtpVersion&gt; : &lt;ChangedAppVersions&gt; # &lt;UnchangedAppVersions&gt; :
-</pre>
-    <p><c>&lt;OtpVersion&gt;</c> is on the format <c>OTP-&lt;VSN&gt;</c>, i.e.,
-    the same as the git tag used to identify the source.
-    <c>&lt;ChangedAppVersions&gt;</c> and <c>&lt;UnchangedAppVersions&gt;</c>
-    are space separated lists of application versions on the
-    format <c>&lt;application&gt;-&lt;vsn&gt;</c>. 
-    <c>&lt;ChangedAppVersions&gt;</c> corresponds to changed applications
-    with new version numbers in this OTP version, and
-    <c>&lt;UnchangedAppVersions&gt;</c> corresponds to unchanged application
-    versions in this OTP version. Both of them might be empty, although
-    not at the same time. If &lt;ChangedAppVersions&gt; is empty, no changes
-    has been made that change the build result of any application. This could
-    for example be a pure bug fix of the build system. The order of lines
-    is undefined. All white space characters in this file are either space
-    (character 32) or line-break (character 10).</p>
-    <p>Using ordinary UNIX tools like <c>sed</c> and <c>grep</c> one
-    can easily find answers to various questions like:</p>
-    <taglist>
-      <tag>Which OTP versions are <c>kernel-3.0</c> part of?</tag>
-      <item><p><c> $ grep ' kernel-3\.0 ' otp_versions.table</c></p></item>
-      <tag>In which OTP version was <c>kernel-3.0</c> introduced?</tag>
-      <item><p><c> $ sed 's/#.*//;/ kernel-3\.0 /!d' otp_versions.table</c></p></item>
-    </taglist>
-    <p>The above commands give a bit more information than the exact answers,
-    but adequate information when manually searching for answers to these
-    questions.</p>
-    <warning><p>The format of the <c>otp_versions.table</c> might be subject
-    to changes during the OTP 17 release.</p></warning>
-    </section>
+    <section>
+      <title>OTP Versions Table</title>
+      <p>The text file <c>&lt;OTP source root&gt;/otp_versions.table</c>,
+      which is part of the source code, contains information about all
+      OTP versions from OTP 17.0 up to the current OTP version. Each line
+      contains information about application versions that are part of a
+      specific OTP version, and has the following format:</p>
+      <pre>
+&lt;OtpVersion&gt; : &lt;ChangedAppVersions&gt; # &lt;UnchangedAppVersions&gt; :</pre>
+      <p><c>&lt;OtpVersion&gt;</c> has the format <c>OTP-&lt;VSN&gt;</c>,
+      that is, the same as the git tag used to identify the source.</p>
+      <p><c>&lt;ChangedAppVersions&gt;</c> and
+      <c>&lt;UnchangedAppVersions&gt;</c> are space-separated lists of
+      application versions and has the format
+      <c>&lt;application&gt;-&lt;vsn&gt;</c>.</p>
+      <list type="bulleted">
+	<item><c>&lt;ChangedAppVersions&gt;</c> corresponds to changed
+	applications with new version numbers in this OTP version.</item>
+	<item><c>&lt;UnchangedAppVersions&gt;</c> corresponds to unchanged
+	application versions in this OTP version.</item>
+      </list>
+      <p>Both of them can be empty, but not at the same time.
+      If <c>&lt;ChangedAppVersions&gt;</c> is empty, no changes have
+      been made that change the build result of any application. This could,
+      for example, be a pure bug fix of the build system. The order of lines
+      is undefined. All white-space characters in this file are either space
+      (character 32) or line-break (character 10).</p>
+      <p>By using ordinary UNIX tools like <c>sed</c> and <c>grep</c> one
+      can easily find answers to various questions like:</p>
+      <list type="bulleted">
+	<item><p>Which OTP versions are <c>kernel-3.0</c> part of?</p>
+	<p><c>$ grep ' kernel-3\.0 ' otp_versions.table</c> </p></item>
+	<item><p>In which OTP version was <c>kernel-3.0</c> introduced?</p>
+	<p><c>$ sed 's/#.*//;/ kernel-3\.0 /!d' otp_versions.table</c>
+	</p></item>
+      </list>
+      <p>The above commands give a bit more information than the exact
+      answers, but adequate information when manually searching for answers
+      to these questions.</p>
+      <warning><p>The format of the <c>otp_versions.table</c> might be
+      subject to changes during the OTP 17 release.</p></warning>
     </section>
+  </section>
 
-    <section><title>Application Version</title>
-    <p>As of OTP 17.0 application versions will use the same
+  <section>
+    <title>Application Version</title>
+    <p>As of OTP 17.0 application versions use the same
     <seealso marker="#version_scheme">version scheme</seealso> as the
     OTP version. Application versions part of a release candidate will
     however not have an <c>-rc&lt;N&gt;</c> suffix as the OTP version.
@@ -126,88 +132,88 @@
     necessarily imply a major increment of the OTP version. This depends
     on whether the major change in the application is considered as a
     major change for OTP as a whole or not.</p>
-    </section>
+  </section>
 
+  <section>
+    <title>Version Scheme</title>
     <marker id="version_scheme"/>
-    <section><title>Version Scheme</title>
-    <note>Note that the version scheme was changed as of OTP 17.0. This implies
+    <note><p>The version scheme was changed as of OTP 17.0. This implies
     that application versions used prior to OTP 17.0 do not adhere to this
     version scheme. <seealso marker="#otp_17_0_app_versions">A list of
-    application versions used in OTP 17.0</seealso> can be found
-    at the end of this document.</note>
-
-    <p>In the normal case, a version will be constructed as
-    <c>&lt;Major&gt;.&lt;Minor&gt;.&lt;Patch&gt;</c> where <c>&lt;Major&gt;</c>
-    is the most significant part. However, more dot separated parts than
-    this may exist. The dot separated parts consists of non-negative integers.
-    If all parts less significant than <c>&lt;Minor&gt;</c> equals <c>0</c>,
-    they are omitted. The three normal parts
-    <c>&lt;Major&gt;.&lt;Minor&gt;.&lt;Patch&gt;</c> will be changed as
+    application versions used in OTP 17.0</seealso> is included at the
+    end of this section</p></note>
+    <p>In the normal case, a version is constructed as
+    <c>&lt;Major&gt;.&lt;Minor&gt;.&lt;Patch&gt;</c>,
+    where <c>&lt;Major&gt;</c> is the most significant part.</p>
+    <p>However, more dot-separated parts than this can exist.
+    The dot-separated parts consist of non-negative integers. If
+    all parts less significant than <c>&lt;Minor&gt;</c> equals
+    <c>0</c>, they are omitted. The three normal parts
+    <c>&lt;Major&gt;.&lt;Minor&gt;.&lt;Patch&gt;</c> are changed as
     follows:</p>
-    <taglist>
-      <tag><c>&lt;Major&gt;</c></tag><item>Increased when major changes,
-      including incompatibilities, have been made.</item>
-      <tag><c>&lt;Minor&gt;</c></tag><item>Increased when new functionality
-      has been added.</item>
-      <tag><c>&lt;Patch&gt;</c></tag><item>Increased when pure bug fixes
-      have been made.</item>
-    </taglist>
-    <p>When a part in the version number is increased, all less significant
+    <list type="bulleted">
+      <item><c>&lt;Major&gt;</c> - Increases when major changes,
+      including incompatibilities, are made.</item>
+      <item><c>&lt;Minor&gt;</c> - Increases when new
+      functionality is added.</item>
+      <item><c>&lt;Patch&gt;</c> - Increases when pure bug fixes
+      are made.</item>
+    </list>
+    <p>When a part in the version number increases, all less significant
     parts are set to <c>0</c>.</p>
-
     <p>An application version or an OTP version identifies source code
-    versions. That is, it does not imply anything about how the application
+    versions. That is, it implies nothing about how the application
     or OTP has been built.</p>
 
-    <section><title>Order of Versions</title>
-    <p>Version numbers in general are only partially ordered. However,
-    normal version numbers (with three parts) as of OTP 17.0 have a total
-    or linear order. This applies both to normal OTP versions and
-    normal application versions.</p>
-
-    <p>When comparing two version numbers that have an order, one
-    compare each part as ordinary integers from the most
-    significant part towards less significant parts. The order is
-    defined by the first parts of the same significance that
-    differ. An OTP version with a larger version include all
-    changes that that are part of a smaller OTP version. The same
-    goes for application versions.</p>
-
-    <p>In the general case, versions may have more than three parts. In
-    this case the versions are only partially ordered. Note that such
-    versions are only used in exceptional cases. When an extra
-    part (out of the normal three parts) is added to a version number,
-    a new branch of versions is made. The new branch has a linear
-    order against the base version. However, versions on different
-    branches have no order. Since they have no order, we
-    only know that they all include what is included in their
-    closest common ancestor. When branching multiple times from the
-    same base version, <c>0</c> parts are added between the base
-    version and the least significant <c>1</c> part until a unique
-    version is found. Versions that have an order can be compared
-    as described in the paragraph above.</p>
-
-    <p>An example of branched versions: The version <c>6.0.2.1</c>
-    is a branched version from the base version <c>6.0.2</c>.
-    Versions on the form <c>6.0.2.&lt;X&gt;</c> can be compared
-    with normal versions smaller than or equal to <c>6.0.2</c>,
-    and other versions on the form <c>6.0.2.&lt;X&gt;</c>. The
-    version <c>6.0.2.1</c> will include all changes in
-    <c>6.0.2</c>. However, <c>6.0.3</c> will most likely
-    <em>not</em> include all changes in <c>6.0.2.1</c> (note that
-    these versions have no order). A second branched version from the base
-    version <c>6.0.2</c> will be version <c>6.0.2.0.1</c>, and a
-    third branched version will be <c>6.0.2.0.0.1</c>.</p>
-    </section>
+    <section>
+      <title>Order of Versions</title>
+      <p>Version numbers in general are only partially ordered. However,
+      normal version numbers (with three parts) as of OTP 17.0 have a total
+      or linear order. This applies both to normal OTP versions and
+      normal application versions.</p>
+      <p>When comparing two version numbers that have an order, one
+      compare each part as ordinary integers from the most
+      significant part to less significant parts. The order is
+      defined by the first parts of the same significance that
+      differ. An OTP version with a larger version includes all
+      changes that are part of a smaller OTP version. The same
+      goes for application versions.</p>
+      <p>In general, versions can have more than three parts.
+      The versions are then only partially ordered. Such
+      versions are only used in exceptional cases. When an extra
+      part (out of the normal three parts) is added to a version number,
+      a new branch of versions is made. The new branch has a linear
+      order against the base version. However, versions on different
+      branches have no order, and therefore one can only conclude
+      that they all include what is included in their
+      closest common ancestor. When branching multiple times from the
+      same base version, <c>0</c> parts are added between the base
+      version and the least significant <c>1</c> part until a unique
+      version is found. Versions that have an order can be compared
+      as described in the previous paragraph.</p>
+      <p>An example of branched versions: The version <c>6.0.2.1</c>
+      is a branched version from the base version <c>6.0.2</c>.
+      Versions on the form <c>6.0.2.&lt;X&gt;</c> can be compared
+      with normal versions smaller than or equal to <c>6.0.2</c>,
+      and other versions on the form <c>6.0.2.&lt;X&gt;</c>. The
+      version <c>6.0.2.1</c> will include all changes in
+      <c>6.0.2</c>. However, <c>6.0.3</c> will most likely
+      <em>not</em> include all changes in <c>6.0.2.1</c> (note that
+      these versions have no order). A second branched version from the base
+      version <c>6.0.2</c> will be version <c>6.0.2.0.1</c>, and a
+      third branched version will be <c>6.0.2.0.0.1</c>.</p>
     </section>
+  </section>
 
+  <section>
+    <title>OTP 17.0 Application Versions</title>
     <marker id="otp_17_0_app_versions"/>
-    <section><title>OTP 17.0 Application Versions</title>
-    <p>The following application versions were part of OTP 17.0. If
-    the normal part of an applications version number compares
-    as smaller than the corresponding application version in this list,
+    <p>The following list details the application versions that
+    were part of OTP 17.0. If
+    the normal part of an application version number compares
+    as smaller than the corresponding application version in the list,
     the version number does not adhere to the version scheme introduced
-    in OTP 17.0 and should be considered as not having an order against
+    in OTP 17.0 and is to be considered as not having an order against
     versions used as of OTP 17.0.</p>
     <list>
       <item><c>asn1-3.0</c></item>
@@ -263,6 +269,6 @@
       <item><c>wx-1.2</c></item>
       <item><c>xmerl-1.3.7</c></item>
     </list>
-    </section>
+  </section>
 </chapter>
 
diff --git a/system/doc/tutorial/c_port.xmlsrc b/system/doc/tutorial/c_port.xmlsrc
index 8579da8520..0631293237 100644
--- a/system/doc/tutorial/c_port.xmlsrc
+++ b/system/doc/tutorial/c_port.xmlsrc
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2000</year><year>2013</year>
+      <year>2000</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -28,16 +28,34 @@
     <rev></rev>
     <file>c_port.xml</file>
   </header>
-  <p>This is an example of how to solve the <seealso marker="example">example problem</seealso> by using a port.</p>
+  <p>This section outlines an example of how to solve the example
+    problem in the <seealso marker="example">previous section</seealso>
+    by using a port.</p>
+  <p>The scenario is illustrated in the following figure:</p>
   <image file="../tutorial/port.gif">
-    <icaption>Port Communication.</icaption>
+    <icaption>Port Communication</icaption>
   </image>
 
   <section>
     <title>Erlang Program</title>
-    <p>First of all communication between Erlang and C must be established by creating the port. The Erlang process which creates a port is said to be <em>the connected process</em> of the port. All communication to and from the port should go via the connected process. If the connected process terminates, so will the port (and the external program, if it is written correctly).</p>
-    <p>The port is created using the BIF <c>open_port/2</c> with <c>{spawn,ExtPrg}</c> as the first argument. The string <c>ExtPrg</c> is the name of the external program, including any command line arguments. The second argument is a list of options, in this case only <c>{packet,2}</c>. This option says that a two byte length indicator will be used to simplify the communication between C and Erlang. Adding the length indicator will be done automatically by the Erlang port, but must be done explicitly in the external C program.</p>
-    <p>The process is also set to trap exits which makes it possible to detect if the external program fails.</p>
+    <p>All communication between Erlang and C must be established by
+      creating the port. The Erlang process that creates a port is
+      said to be <em>the connected process</em> of the port. All
+      communication to and from the port must go through the connected
+      process. If the connected process terminates, the port also
+      terminates (and the external program, if it is written
+      properly).</p>
+    <p>The port is created using the BIF <c>open_port/2</c> with
+      <c>{spawn,ExtPrg}</c> as the first argument. The string
+      <c>ExtPrg</c> is the name of the external program, including any
+      command line arguments. The second argument is a list of
+      options, in this case only <c>{packet,2}</c>. This option says
+      that a 2 byte length indicator is to be used to simplify the
+      communication between C and Erlang. The Erlang port
+      automatically adds the length indicator, but this must be done
+      explicitly in the external C program.</p>
+    <p>The process is also set to trap exits, which enables detection
+      of failure of the external program:</p>
     <pre>
 -module(complex1).
 -export([start/1, init/1]).
@@ -50,7 +68,9 @@ init(ExtPrg) ->
   process_flag(trap_exit, true),
   Port = open_port({spawn, ExtPrg}, [{packet, 2}]),
   loop(Port).</pre>
-    <p>Now it is possible to implement <c>complex1:foo/1</c> and <c>complex1:bar/1</c>. They both send a message to the <c>complex</c> process and receive the reply.</p>
+    <p>Now <c>complex1:foo/1</c> and <c>complex1:bar/1</c> can be
+      implemented. Both send a message to the <c>complex</c> process
+      and receive the following replies:</p>
     <pre>
 foo(X) ->
   call_port({foo, X}).
@@ -63,7 +83,14 @@ call_port(Msg) ->
     {complex, Result} ->
       Result
   end.</pre>
-    <p>The <c>complex</c> process encodes the message into a sequence of bytes, sends it to the port, waits for a reply, decodes the reply and sends it back to the caller.</p>
+    <p>The <c>complex</c> process does the following:</p>
+    <list type="bulleted">
+       <item>Encodes the message into a sequence of bytes.</item>
+       <item>Sends it to the port.</item>
+       <item>Waits for a reply.</item>
+       <item>Decodes the reply.</item>
+       <item>Sends it back to the caller:</item>
+     </list>
     <pre>
 loop(Port) ->
   receive
@@ -75,37 +102,52 @@ loop(Port) ->
       end,
       loop(Port)
  end.</pre>
-    <p>Assuming that both the arguments and the results from the C functions will be less than 256, a very simple encoding/decoding scheme is employed where <c>foo</c> is represented by the byte 1, <c>bar</c> is represented by 2, and the argument/result is represented by a single byte as well.</p>
+    <p>Assuming that both the arguments and the results from the C
+      functions are less than 256, a simple encoding/decoding scheme
+      is employed. In this scheme, <c>foo</c> is represented by byte
+      1, <c>bar</c> is represented by 2, and the argument/result is
+      represented by a single byte as well:</p>
     <pre>
 encode({foo, X}) -> [1, X];
 encode({bar, Y}) -> [2, Y].
-      
+
 decode([Int]) -> Int.</pre>
-    <p>The resulting Erlang program, including functionality for stopping the port and detecting port failures is shown below.
+    <p>The resulting Erlang program, including functionality for
+      stopping the port and detecting port failures, is as follows:
       </p>
       <codeinclude file="complex1.erl" type="erl"/>
   </section>
 
   <section>
     <title>C Program</title>
-    <p>On the C side, it is necessary to write functions for receiving and sending 
-      data with two byte length indicators from/to Erlang. By default, the C program
-      should read from standard input (file descriptor 0) and write to standard output
-      (file descriptor 1). Examples of such functions, <c>read_cmd/1</c> and
-      <c>write_cmd/2</c>, are shown below.</p>
+    <p>On the C side, it is necessary to write functions for receiving
+      and sending data with 2 byte length indicators from/to Erlang.
+      By default, the C program is to read from standard input (file
+      descriptor 0) and write to standard output (file descriptor 1).
+      Examples of such functions, <c>read_cmd/1</c> and
+      <c>write_cmd/2</c>, follows:</p>
       <codeinclude file="erl_comm.c" type="erl"/>
-    <p>Note that <c>stdin</c> and <c>stdout</c> are for buffered input/output and should not be used for the communication with Erlang!</p>
-    <p>In the <c>main</c> function, the C program should listen for a message from Erlang and, according to the selected encoding/decoding scheme, use the first byte to determine which function to call and the second byte as argument to the function. The result of calling the function should then be sent back to Erlang.</p>
+    <p>Notice that <c>stdin</c> and <c>stdout</c> are for buffered
+      input/output and must <em>not</em> be used for the communication
+      with Erlang.</p>
+    <p>In the <c>main</c> function, the C program is to listen for a
+      message from Erlang and, according to the selected
+      encoding/decoding scheme, use the first byte to determine which
+      function to call and the second byte as argument to the
+      function. The result of calling the function is then to be sent
+      back to Erlang:</p>
     <codeinclude file="port.c" tag="" type="none"></codeinclude>
-    <p>Note that the C program is in a <c>while</c>-loop checking for the return value of <c>read_cmd/1</c>. The reason for this is that the C program must detect when the port gets closed and terminate.</p>
+    <p>Notice that the C program is in a <c>while</c>-loop, checking
+      for the return value of <c>read_cmd/1</c>. This is because the C
+      program must detect when the port closes and terminates.</p>
   </section>
 
   <section>
     <title>Running the Example</title>
-    <p>1. Compile the C code.</p>
+    <p><em>Step 1.</em> Compile the C code:</p>
     <pre>
 unix> <input>gcc -o extprg complex.c erl_comm.c port.c</input></pre>
-    <p>2. Start Erlang and compile the Erlang code.</p>
+    <p><em>Step 2.</em> Start Erlang and compile the Erlang code:</p>
     <pre>
 unix> <input>erl</input>
 Erlang (BEAM) emulator version 4.9.1.2
@@ -113,7 +155,7 @@ Erlang (BEAM) emulator version 4.9.1.2
 Eshell V4.9.1.2 (abort with ^G)
 1> <input>c(complex1).</input>
 {ok,complex1}</pre>
-    <p>3. Run the example.</p>
+    <p><em>Step 3.</em> Run the example:</p>
     <pre>
 2> <input>complex1:start("extprg").</input>
 &lt;0.34.0>
diff --git a/system/doc/tutorial/c_portdriver.xmlsrc b/system/doc/tutorial/c_portdriver.xmlsrc
index 2fd6fb0aac..61187703a4 100644
--- a/system/doc/tutorial/c_portdriver.xmlsrc
+++ b/system/doc/tutorial/c_portdriver.xmlsrc
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2000</year><year>2013</year>
+      <year>2000</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -21,46 +21,45 @@
     
     </legalnotice>
 
-    <title>Port drivers</title>
+    <title>Port Drivers</title>
     <prepared></prepared>
     <docno></docno>
     <date></date>
     <rev></rev>
     <file>c_portdriver.xml</file>
   </header>
-  <p>This is an example of how to solve the <seealso marker="example">example problem</seealso> by using a linked in port driver.</p>
+  <p>This section outlines an example of how to solve the example problem
+    in <seealso marker="example">Problem Example</seealso>
+    by using a linked-in port driver.</p>
+  <p>A port driver is a linked-in driver that is accessible as a port
+    from an Erlang program. It is a shared library (SO in UNIX, DLL in
+    Windows), with special entry points. The Erlang runtime system
+    calls these entry points when the driver is started and when data
+    is sent to the port. The port driver can also send data to
+    Erlang.</p>
+  <p>As a port driver is dynamically linked into the emulator process,
+    this is the fastest way of calling C-code from Erlang. Calling
+    functions in the port driver requires no context switches. But it
+    is also the least safe way, because a crash in the port driver
+    brings the emulator down too.</p>
+  <p>The scenario is illustrated in the following figure:</p>
   <image file="../tutorial/port_driver.gif">
-    <icaption>Port Driver Communication.</icaption>
+    <icaption>Port Driver Communication</icaption>
   </image>
 
   <section>
-    <title>Port Drivers</title>
-    <p>A port driver is a linked in driver that is accessible as a
-      port from an Erlang program. It is a shared library (SO in Unix,
-      DLL in Windows), with special entry points. The Erlang runtime
-      calls these entry points, when the driver is started and when
-      data is sent to the port. The port driver can also send data to
-      Erlang.</p>
-    <p>Since a port driver is dynamically linked into the emulator
-      process, this is the fastest way of calling C-code from Erlang.
-      Calling functions in the port driver requires no context
-      switches. But it is also the least safe, because a crash in the
-      port driver brings the emulator down too.</p>
-  </section>
-
-  <section>
     <title>Erlang Program</title>
-    <p>Just as with a port program, the port communicates with a Erlang
+    <p>Like a port program, the port communicates with an Erlang
       process. All communication goes through one Erlang process that
       is the <em>connected process</em> of the port
       driver. Terminating this process closes the port driver.</p>
     <p>Before the port is created, the driver must be loaded. This is
       done with the function <c>erl_dll:load_driver/1</c>, with the
       name of the shared library as argument.</p>
-    <p>The port is then created using the BIF <c>open_port/2</c> with
+    <p>The port is then created using the BIF <c>open_port/2</c>, with
       the tuple <c>{spawn, DriverName}</c> as the first argument. The
       string <c>SharedLib</c> is the name of the port driver. The second
-      argument is a list of options, none in this case.</p>
+      argument is a list of options, none in this case:</p>
     <pre>
 -module(complex5).
 -export([start/1, init/1]).
@@ -77,9 +76,9 @@ init(SharedLib) ->
   register(complex, self()),
   Port = open_port({spawn, SharedLib}, []),
   loop(Port).</pre>
-    <p>Now it is possible to implement <c>complex5:foo/1</c> and
-      <c>complex5:bar/1</c>. They both send a message to the
-      <c>complex</c> process and receive the reply.</p>
+    <p>Now <c>complex5:foo/1</c> and <c>complex5:bar/1</c>
+      can be implemented. Both send a message to the
+      <c>complex</c> process and receive the following reply:</p>
     <pre>
 foo(X) ->
     call_port({foo, X}).
@@ -92,10 +91,14 @@ call_port(Msg) ->
         {complex, Result} ->
             Result
     end.</pre>
-    <p>The <c>complex</c> process encodes the message into a sequence
-      of bytes, sends it to the port, waits for a reply, decodes the
-      reply and sends it back to the caller.
-      </p>
+    <p>The <c>complex</c> process performs the following:</p>
+    <list type="bulleted">
+       <item>Encodes the message into a sequence of bytes.</item>
+       <item>Sends it to the port.</item>
+       <item>Waits for a reply.</item>
+       <item>Decodes the reply.</item>
+       <item>Sends it back to the caller:</item>
+     </list>
     <pre>
 loop(Port) ->
     receive
@@ -108,59 +111,58 @@ loop(Port) ->
             loop(Port)
     end.</pre>
     <p>Assuming that both the arguments and the results from the C
-      functions will be less than 256, a very simple encoding/decoding
-      scheme is employed where <c>foo</c> is represented by the byte
+      functions are less than 256, a simple encoding/decoding scheme
+      is employed. In this scheme, <c>foo</c> is represented by byte
       1, <c>bar</c> is represented by 2, and the argument/result is
-      represented by a single byte as well.
-      </p>
+      represented by a single byte as well:</p>
     <pre>
 encode({foo, X}) -> [1, X];
 encode({bar, Y}) -> [2, Y].
-      
+
 decode([Int]) -> Int.</pre>
-    <p>The resulting Erlang program, including functionality for
-      stopping the port and detecting port failures is shown below.</p>
+    <p>The resulting Erlang program, including functions for stopping
+      the port and detecting port failures, is as follows:</p>
       <codeinclude file="complex5.erl" type="erl"/>
   </section>
 
   <section>
     <title>C Driver</title>
     <p>The C driver is a module that is compiled and linked into a
-      shared library. It uses a driver structure, and includes the
+      shared library. It uses a driver structure and includes the
       header file <c>erl_driver.h</c>.</p>
     <p>The driver structure is filled with the driver name and function
       pointers. It is returned from the special entry point, declared
       with the macro <c><![CDATA[DRIVER_INIT(<driver_name>)]]></c>.</p>
-    <p>The functions for receiving and sending data, are combined into
+    <p>The functions for receiving and sending data are combined into
       a function, pointed out by the driver structure. The data sent
-      into the port is given as arguments, and the data the port
-      sends back is sent with the C-function <c>driver_output</c>.</p>
-    <p>Since the driver is a shared module, not a program, no main
-      function should be present. All function pointers are not used
-      in our example, and the corresponding fields in the
+      into the port is given as arguments, and the replied data is sent
+      with the C-function <c>driver_output</c>.</p>
+    <p>As the driver is a shared module, not a program, no main
+      function is present. All function pointers are not used
+      in this example, and the corresponding fields in the
       <c>driver_entry</c> structure are set to NULL.</p>
-    <p>All functions in the driver, takes a handle (returned from
-      <c>start</c>), that is just passed along by the erlang
+    <p>All functions in the driver takes a handle (returned from
+      <c>start</c>) that is just passed along by the Erlang
       process. This must in some way refer to the port driver
       instance.</p>
-    <p>The example_drv_start, is the only function that is called with
-      a handle to the port instance, so we must save this. It is
-      customary to use a allocated driver-defined structure for this
-      one, and pass a pointer back as a reference.</p>
-    <p>It is not a good idea to use a global variable; since the port
-      driver can be spawned by multiple Erlang processes, this
-      driver-structure should be instantiated multiple times.
+    <p>The <c>example_drv_start</c>, is the only function that is called with
+      a handle to the port instance, so this must be saved. It is
+      customary to use an allocated driver-defined structure for this
+      one, and to pass a pointer back as a reference.</p>
+    <p>It is not a good idea to use a global variable as the port
+      driver can be spawned by multiple Erlang processes. This
+      driver-structure is to be instantiated multiple times:
       </p>
     <codeinclude file="port_driver.c" tag="" type="none"></codeinclude>
   </section>
 
   <section>
     <title>Running the Example</title>
-    <p>1. Compile the C code.</p>
+    <p><em>Step 1.</em> Compile the C code:</p>
     <pre>
 unix> <input>gcc -o exampledrv -fpic -shared complex.c port_driver.c</input>
 windows> <input>cl -LD -MD -Fe exampledrv.dll complex.c port_driver.c</input></pre>
-    <p>2. Start Erlang and compile the Erlang code.</p>
+    <p><em>Step 2.</em> Start Erlang and compile the Erlang code:</p>
     <pre>
 > <input>erl</input>
 Erlang (BEAM) emulator version 5.1
@@ -168,7 +170,7 @@ Erlang (BEAM) emulator version 5.1
 Eshell V5.1 (abort with ^G)
 1> <input>c(complex5).</input>
 {ok,complex5}</pre>
-    <p>3. Run the example.</p>
+    <p><em>Step 3.</em> Run the example:</p>
     <pre>
 2> <input>complex5:start("example_drv").</input>
 &lt;0.34.0>
diff --git a/system/doc/tutorial/cnode.xmlsrc b/system/doc/tutorial/cnode.xmlsrc
index 293406160f..bcdd1298de 100644
--- a/system/doc/tutorial/cnode.xmlsrc
+++ b/system/doc/tutorial/cnode.xmlsrc
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2000</year><year>2013</year>
+      <year>2000</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -28,19 +28,39 @@
     <rev></rev>
     <file>cnode.xml</file>
   </header>
-  <p>This is an example of how to solve the <seealso marker="example">example problem</seealso> by using a C node. Note that a C node would not typically be used for solving a simple problem like this, a port would suffice.</p>
+  <p>This section outlines an example of how to solve the example
+    problem in <seealso marker="example">Problem Example</seealso>
+    by using a C node. Notice that a C node is not typically
+    used for solving simple problems like this, a port is
+    sufficient.</p>
 
   <section>
     <title>Erlang Program</title>
-    <p>From Erlang's point of view, the C node is treated like a normal Erlang node. Therefore, calling the functions <c>foo</c> and <c>bar</c> only involves sending a message to the C node asking for the function to be called, and receiving the result. Sending a message requires a recipient; a process which can be defined using either a pid or a tuple consisting of a registered name and a node name. In this case a tuple is the only alternative as no pid is known.</p>
+    <p>From Erlang's point of view, the C node is treated like a
+      normal Erlang node. Thus, calling the functions <c>foo</c> and
+      <c>bar</c> only involves sending a message to the C node asking
+      for the function to be called, and receiving the result. Sending
+      a message requires a recipient, that is, a process that can be
+      defined using either a pid or a tuple, consisting of a
+      registered name and a node name. In this case, a tuple is the
+      only alternative as no pid is known:</p>
     <pre>
 {RegName, Node} ! Msg</pre>
-    <p>The node name <c>Node</c> should be the name of the C node. If short node names are used, the plain name of the node will be <c>cN</c> where <c>N</c> is an integer. If long node names are used, there is no such restriction. An example of a C node name using short node names is thus <c>c1@idril</c>, an example using long node names is <c>[email protected]</c>.</p>
-    <p>The registered name <c>RegName</c> could be any atom. The name can be ignored by the C code, or it could be used for example to distinguish between different types of messages. Below is an example of what the Erlang code could look like when using short node names. 
+    <p>The node name <c>Node</c> is to be the name of the C node. If
+      short node names are used, the plain name of the node is
+      <c>cN</c>, where <c>N</c> is an integer. If long node names are
+      used, there is no such restriction. An example of a C node name
+      using short node names is thus <c>c1@idril</c>, an example using
+      long node names is <c>[email protected]</c>.</p>
+    <p>The registered name, <c>RegName</c>, can be any atom. The name
+      can be ignored by the C code, or, for example, be used to
+      distinguish between different types of messages. An example of
+      Erlang code using short node names follows:
       </p>
     <codeinclude file="complex3.erl" tag="" type="erl"></codeinclude>
     <p>
-      When using long node names the code is slightly different as shown in the following example:
+      When using long node names, the code is slightly different as
+      shown in the following example:
     </p>
     <codeinclude file="complex4.erl" tag="" type="erl"></codeinclude>
 
@@ -50,39 +70,77 @@
     <title>C Program</title>
 
     <section>
-      <title>Setting Up the Communication</title>
-      <p>Before calling any other Erl_Interface function, the memory handling must be initiated.</p>
+      <title>Setting Up Communication</title>
+      <p>Before calling any other function in Erl_Interface, the
+        memory handling must be initiated:</p>
       <pre>
 erl_init(NULL, 0);</pre>
-      <p>Now the C node can be initiated. If short node names are used, this is done by calling <c>erl_connect_init()</c>.</p>
+      <p>Now the C node can be initiated. If short node names are
+        used, this is done by calling <c>erl_connect_init()</c>:</p>
       <pre>
 erl_connect_init(1, "secretcookie", 0);</pre>
-      <p>The first argument is the integer which is used to construct the node name. In the example the plain node name will be <c>c1</c>.        <br></br>
-
-        The second argument is a string defining the magic cookie.        <br></br>
-
-        The third argument is an integer which is used to identify a particular instance of a C node.</p>
-      <p>If long node node names are used, initiation is done by calling <c>erl_connect_xinit()</c>.</p>
+      <p>Here:</p>
+      <list type="bulleted">
+       <item>The first argument is the integer used to construct the node name.
+       <p>In the example, the plain node name is <c>c1</c>.</p></item>
+       <item>The second argument is a string defining the magic cookie.</item>
+       <item>The third argument is an integer that is used to identify
+       a particular instance of a C node.</item>
+     </list>
+      <p>If long node node names are used, initiation is done by
+        calling <c>erl_connect_xinit()</c>:</p>
       <pre>
 erl_connect_xinit("idril", "cnode", "[email protected]",
                   &amp;addr, "secretcookie", 0);</pre>
-      <p>The first three arguments are the host name, the plain node name, and the full node name. The fourth argument is a pointer to an <c>in_addr</c> struct with the IP address of the host, and the fifth and sixth arguments are the magic cookie and instance number.</p>
-      <p>The C node can act as a server or a client when setting up the communication Erlang-C. If it acts as a client, it connects to an Erlang node by calling <c>erl_connect()</c>, which will return an open file descriptor at success.</p>
+       <p>Here:</p>
+      <list type="bulleted">
+       <item>The first argument is the host name.</item>
+       <item>The second argument is the plain node name.</item>
+       <item>The third argument is the full node name.</item>
+       <item>The fourth argument is a pointer to an <c>in_addr</c>
+       struct with the IP address of the host.</item>
+       <item>The fifth argument is the magic cookie.</item>
+       <item>The sixth argument is the instance number.</item>
+     </list>
+      <p>The C node can act as a server or a client when setting up
+         the Erlang-C communication. If it acts as a client, it
+         connects to an Erlang node by calling <c>erl_connect()</c>,
+         which returns an open file descriptor at success:</p>
       <pre>
 fd = erl_connect("e1@idril");</pre>
-      <p>If the C node acts as a server, it must first create a socket (call <c>bind()</c> and <c>listen()</c>) listening to a certain port number <c>port</c>. It then publishes its name and port number with <c>epmd</c> (the Erlang port mapper daemon, see the man page for <c>epmd</c>).</p>
+      <p>If the C node acts as a server, it must first create a socket
+        (call <c>bind()</c> and <c>listen()</c>) listening to a
+        certain port number <c>port</c>. It then publishes its name
+        and port number with <c>epmd</c>, the Erlang port mapper
+        daemon. For details, see the <seealso
+        marker="erts:epmd">epmd</seealso> manual page in ERTS:</p>
       <pre>
 erl_publish(port);</pre>
-      <p>Now the C node server can accept connections from Erlang nodes.</p>
+      <p>Now the C node server can accept connections from Erlang nodes:</p>
       <pre>
 fd = erl_accept(listen, &amp;conn);</pre>
-      <p>The second argument to <c>erl_accept</c> is a struct <c>ErlConnect</c> that will contain useful information when a connection has been established; for example, the name of the Erlang node.</p>
+      <p>The second argument to <c>erl_accept</c> is a struct
+        <c>ErlConnect</c> which contains useful information when a
+        connection has been established, for example, the name of the
+        Erlang node.</p>
     </section>
 
     <section>
       <title>Sending and Receiving Messages</title>
-      <p>The C node can receive a message from Erlang by calling <c>erl_receive msg()</c>. This function reads data from the open file descriptor <c>fd</c> into a buffer and puts the result in an <c>ErlMessage</c> struct <c>emsg</c>. <c>ErlMessage</c> has a field <c>type</c> defining which kind of data was received. In this case the type of interest is <c>ERL_REG_SEND</c> which indicates that Erlang sent a message to a registered process at the C node. The actual message, an <c>ETERM</c>, will be in the <c>msg</c> field.</p>
-      <p>It is also necessary to take care of the types <c>ERL_ERROR</c> (an error occurred) and <c>ERL_TICK</c> (alive check from other node, should be ignored). Other possible types indicate process events such as link/unlink and exit.</p>
+      <p>The C node can receive a message from Erlang by calling
+        <c>erl_receive msg()</c>. This function reads data from the
+        open file descriptor <c>fd</c> into a buffer and puts the
+        result in an <c>ErlMessage</c> struct <c>emsg</c>.
+        <c>ErlMessage</c> has a field <c>type</c> defining what kind
+        of data is received. In this case, the type of interest is
+        <c>ERL_REG_SEND</c> which indicates that Erlang sent a message
+        to a registered process at the C node. The actual message, an
+        <c>ETERM</c>, is in the <c>msg</c> field.</p>
+      <p>It is also necessary to take care of the types
+        <c>ERL_ERROR</c> (an error occurred) and <c>ERL_TICK</c>
+        (alive check from other node, is to be ignored). Other
+        possible types indicate process events such as link, unlink,
+        and exit:</p>
       <pre>
   while (loop) {
 
@@ -93,7 +151,16 @@ fd = erl_accept(listen, &amp;conn);</pre>
       loop = 0; /* exit while loop */
     } else {
       if (emsg.type == ERL_REG_SEND) {</pre>
-      <p>Since the message is an <c>ETERM</c> struct, Erl_Interface functions can be used to manipulate it. In this case, the message will be a 3-tuple (because that was how the Erlang code was written, see above). The second element will be the pid of the caller and the third element will be the tuple <c>{Function,Arg}</c> determining which function to call with which argument. The result of calling the function is made into an <c>ETERM</c> struct as well and sent back to Erlang using <c>erl_send()</c>, which takes the open file descriptor, a pid and a term as arguments.</p>
+      <p>As the message is an <c>ETERM</c> struct, Erl_Interface
+        functions can be used to manipulate it. In this case, the
+        message becomes a 3-tuple, because that is how the Erlang code
+        is written. The second element will be the pid of the caller
+        and the third element will be the tuple <c>{Function,Arg}</c>
+        determining which function to call, and with which argument.
+        The result of calling the function is made into an
+        <c>ETERM</c> struct as well and sent back to Erlang using
+        <c>erl_send()</c>, which takes the open file descriptor, a
+        pid, and a term as arguments:</p>
       <pre>
         fromp = erl_element(2, emsg.msg);
         tuplep = erl_element(3, emsg.msg);
@@ -108,29 +175,30 @@ fd = erl_accept(listen, &amp;conn);</pre>
 
         resp = erl_format("{cnode, ~i}", res);
         erl_send(fd, fromp, resp);</pre>
-      <p>Finally, the memory allocated by the <c>ETERM</c> creating functions (including <c>erl_receive_msg()</c> must be freed.</p>
+      <p>Finally, the memory allocated by the <c>ETERM</c> creating
+        functions (including <c>erl_receive_msg()</c> must be
+        freed:</p>
       <pre>
         erl_free_term(emsg.from); erl_free_term(emsg.msg);
         erl_free_term(fromp); erl_free_term(tuplep);
         erl_free_term(fnp); erl_free_term(argp);
         erl_free_term(resp);</pre>
-      <p>The resulting C programs can be found in looks like the following examples. First a C node server using short node names.</p>
+      <p>The following examples show the resulting C programs.
+        First a C node server using short node names:</p>
       <codeinclude file="cnode_s.c" type="c"/>
-      <p>Below follows a C node server using long node names.</p>
+      <p>A C node server using long node names:</p>
       <codeinclude file="cnode_s2.c" type="c"/>
-      <p>And finally we have the code for the C node client.</p>
+      <p>Finally, the code for the C node client:</p>
       <codeinclude file="cnode_c.c" type="c"/>
     </section>
   </section>
 
   <section>
     <title>Running the Example</title>
-    <p>1. Compile the C code, providing the paths to the Erl_Interface include files and libraries, and to the <c>socket</c> and <c>nsl</c> libraries.</p>
-    <p>In R5B and later versions of OTP, the <c>include</c> and <c>lib</c> directories are situated under <c>OTPROOT/lib/erl_interface-VSN</c>, where <c>OTPROOT</c> is the root directory of the OTP installation (<c>/usr/local/otp</c> in the example above) and <c>VSN</c> is the version of the <c>erl_interface</c> application (3.2.1 in the example above).      <br></br>
-
-      In R4B and earlier versions of OTP, <c>include</c> and <c>lib</c> are situated under <c>OTPROOT/usr</c>.</p>
+    <p><em>Step 1.</em> Compile the C code. This provides the paths to
+      the Erl_Interface include files and libraries, and to the
+      <c>socket</c> and <c>nsl</c> libraries:</p>
     <pre>
-      
 >  <input>gcc -o cserver \\ </input>
 <input>-I/usr/local/otp/lib/erl_interface-3.2.1/include \\ </input>
 <input>-L/usr/local/otp/lib/erl_interface-3.2.1/lib \\ </input>
@@ -148,11 +216,29 @@ unix> <input>gcc -o cclient \\ </input>
 <input>-L/usr/local/otp/lib/erl_interface-3.2.1/lib \\ </input>
 <input>complex.c cnode_c.c \\ </input>
 <input>-lerl_interface -lei -lsocket -lnsl</input></pre>
-    <p>2. Compile the Erlang code.</p>
+     <p>In Erlang/OTP R5B and later versions of OTP, the
+      <c>include</c> and <c>lib</c> directories are situated under
+      <c>OTPROOT/lib/erl_interface-VSN</c>, where <c>OTPROOT</c> is
+      the root directory of the OTP installation
+      (<c>/usr/local/otp</c> in the recent example) and <c>VSN</c> is
+      the version of the Erl_Interface application (3.2.1 in the
+      recent example).</p>
+    <p>In R4B and earlier versions of OTP, <c>include</c> and
+      <c>lib</c> are situated under <c>OTPROOT/usr</c>.</p>
+    <p><em>Step 2.</em> Compile the Erlang code:</p>
     <pre>
 unix> <input>erl -compile complex3 complex4</input></pre>
-    <p>3. Run the C node server example with short node names.</p>
-    <p>Start the C program <c>cserver</c> and Erlang in different windows. <c>cserver</c> takes a port number as argument and must be started before trying to call the Erlang functions. The Erlang node should be given the short name <c>e1</c> and must be set to use the same magic cookie as the C node, <c>secretcookie</c>.</p>
+    <p><em>Step 3.</em> Run the C node server example with short node names.</p>
+    <p>Do as follows:</p>
+    <list type="bulleted">
+       <item>Start the C program <c>cserver</c> and Erlang in
+       different windows.</item>
+       <item><c>cserver</c> takes a port number as argument and must
+       be started before trying to call the Erlang functions.</item>
+       <item>The Erlang node is to be given the short name <c>e1</c>
+       and must be set to use the same magic cookie as the C node,
+       <c>secretcookie</c>:</item>
+     </list>
     <pre>
 unix> <input>cserver 3456</input>
 
@@ -164,7 +250,9 @@ Eshell V4.9.1.2  (abort with ^G)
 4
 (e1@idril)2> <input>complex3:bar(5).</input>
 10</pre>
-    <p>4. Run the C node client example. Terminate <c>cserver</c> but not Erlang and start <c>cclient</c>. The Erlang node must be started before the C node client is.</p>
+    <p><em>Step 4.</em> Run the C node client example. Terminate
+      <c>cserver</c>, but not Erlang, and start <c>cclient</c>. The
+      Erlang node must be started before the C node client:</p>
     <pre>
 unix> <input>cclient</input>
 
@@ -172,7 +260,7 @@ unix> <input>cclient</input>
 4
 (e1@idril)4> <input>complex3:bar(5).</input>
 10</pre>
-    <p>5. Run the C node server, long node names, example.</p>
+    <p><em>Step 5.</em> Run the C node server example with long node names:</p>
     <pre>
 unix> <input>cserver2 3456</input>
 
diff --git a/system/doc/tutorial/distribution.xml b/system/doc/tutorial/distribution.xml
index 6a0ea759c4..ced8e4a545 100644
--- a/system/doc/tutorial/distribution.xml
+++ b/system/doc/tutorial/distribution.xml
@@ -58,7 +58,6 @@
       <item>global_group - Grouping nodes to global name registration groups.</item>
       <item>net_adm - Various net administration routines.</item>
       <item>net_kernel - Networking kernel.</item>
-      <item>pg - Distributed named process groups, experimental implementation.</item>
       <item>pg2 - Distributed named process groups.</item>
       <item>pool - Load distribution facility.</item>
       <item>slave - Functions for starting and controlling slave nodes.</item>
diff --git a/system/doc/tutorial/erl_interface.xmlsrc b/system/doc/tutorial/erl_interface.xmlsrc
index 0c4c5a99c2..5751a945d6 100644
--- a/system/doc/tutorial/erl_interface.xmlsrc
+++ b/system/doc/tutorial/erl_interface.xmlsrc
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2000</year><year>2013</year>
+      <year>2000</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -28,14 +28,29 @@
     <rev></rev>
     <file>erl_interface.xml</file>
   </header>
-  <p>This is an example of how to solve the <seealso marker="example">example problem</seealso> by using a port and <c>erl_interface</c>. It is necessary to read the <seealso marker="c_port">port example</seealso> before reading this chapter.</p>
+
+  <p>This section outlines an example of how to solve the example
+    problem in <seealso marker="example">Problem Example</seealso> by
+    using a port and Erl_Interface. It is necessary to read the port
+    example in <seealso marker="c_port">Ports</seealso> before reading
+    this section.</p>
 
   <section>
     <title>Erlang Program</title>
-    <p>The example below shows an Erlang program communicating with a C program over a plain port with home made encoding.</p>
-    <codeinclude file="complex1.erl" type="erl"/>
-    <p>Compared to the Erlang module 
-      above used for the plain port, there are two differences when using Erl_Interface on the C side: Since Erl_Interface operates on the Erlang external term format the port must be set to use binaries and, instead of inventing an encoding/decoding scheme, the BIFs <c>term_to_binary/1</c> and <c>binary_to_term/1</c> should be used. That is:</p>
+    <p>The following example shows an Erlang program communicating
+      with a C program over a plain port with home made encoding:</p>
+      <codeinclude file="complex1.erl" type="erl"/>
+    <p>There are two differences when using Erl_Interface on the C
+      side compared to the example in <seealso marker="c_port">
+      Ports</seealso>, using only the plain port:</p>
+    <list type="bulleted">
+       <item>As Erl_Interface operates on the Erlang external term format,
+       the port must be set to use binaries.</item>
+       <item>Instead of inventing an encoding/decoding scheme, the
+       <c>term_to_binary/1</c> and <c>binary_to_term/1</c> BIFs are to
+       be used.</item>
+     </list>
+    <p>That is:</p>
     <pre>
 open_port({spawn, ExtPrg}, [{packet, 2}])</pre>
     <p>is replaced with:</p>
@@ -55,69 +70,110 @@ receive
   {Port, {data, Data}} ->
     Caller ! {complex, binary_to_term(Data)}
 end</pre>
-    <p>The resulting Erlang program is shown below.</p>
+    <p>The resulting Erlang program is as follows:</p>
     <codeinclude file="complex2.erl" type="erl"/>
-    <p>Note that calling <c>complex2:foo/1</c> and <c>complex2:bar/1</c> will result in the tuple <c>{foo,X}</c> or <c>{bar,Y}</c> being sent to the <c>complex</c> process, which will code them as binaries and send them to the port. This means that the C program must be able to handle these two tuples.</p>
+    <p>Notice that calling <c>complex2:foo/1</c> and
+      <c>complex2:bar/1</c> results in the tuple <c>{foo,X}</c> or
+      <c>{bar,Y}</c> being sent to the <c>complex</c> process, which
+      codes them as binaries and sends them to the port. This means
+      that the C program must be able to handle these two tuples.</p>
   </section>
 
   <section>
     <title>C Program</title>
-    <p>The example below shows a C program communicating with an Erlang program over a plain port with home made encoding.</p>
+    <p>The following example shows a C program communicating with an
+      Erlang program over a plain port with home made encoding:</p>
     <codeinclude file="port.c" type="c"/>
-    <p>Compared to the C program above
-      used for the plain port the <c>while</c>-loop must be rewritten. Messages coming from the port will be on the Erlang external term format. They should be converted into an <c>ETERM</c> struct, a C struct similar to an Erlang term. The result of calling <c>foo()</c> or <c>bar()</c> must be converted to the Erlang external term format before being sent back to the port. But before calling any other <c>erl_interface</c> function, the memory handling must be initiated.</p>
+    <p>Compared to the C program in <seealso marker="c_port">
+      Ports</seealso>, using only the plain port, the
+      <c>while</c>-loop must be rewritten. Messages coming from the
+      port is on the Erlang external term format. They must be
+      converted into an <c>ETERM</c> struct, which is a C struct
+      similar to an Erlang term. The result of calling <c>foo()</c> or
+      <c>bar()</c> must be converted to the Erlang external term
+      format before being sent back to the port. But before calling
+      any other Erl_Interface function, the memory handling must be
+      initiated:</p>
     <pre>
 erl_init(NULL, 0);</pre>
-    <p>For reading from and writing to the port the functions <c>read_cmd()</c> and <c>write_cmd()</c> from the erl_comm.c example below 
-      can still be used.
+    <p>The following functions, <c>read_cmd()</c> and
+      <c>write_cmd()</c>, from the <c>erl_comm.c</c> example in
+      <seealso marker="c_port">Ports</seealso> can still be
+      used for reading from and writing to the port:
     </p>
     <codeinclude file="erl_comm.c" type="c"/>
-    <p>The function <c>erl_decode()</c> from <c>erl_marshal</c> will convert the binary into an <c>ETERM</c> struct.</p>
+    <p>The function <c>erl_decode()</c> from <c>erl_marshal</c>
+      converts the binary into an <c>ETERM</c> struct:</p>
     <pre>
 int main() {
   ETERM *tuplep;
 
   while (read_cmd(buf) > 0) {
     tuplep = erl_decode(buf);</pre>
-    <p>In this case <c>tuplep</c> now points to an <c>ETERM</c> struct representing a tuple with two elements; the function name (atom) and the argument (integer). By using the function <c>erl_element()</c> from <c>erl_eterm</c> it is possible to extract these elements, which also must be declared as pointers to an <c>ETERM</c> struct.</p>
+    <p>Here, <c>tuplep</c> points to an <c>ETERM</c> struct
+      representing a tuple with two elements; the function name (atom)
+      and the argument (integer). Using the function
+      <c>erl_element()</c> from <c>erl_eterm</c>, these elements can
+      be extracted, but they must also be declared as pointers to an
+      <c>ETERM</c> struct:</p>
     <pre>
     fnp = erl_element(1, tuplep);
     argp = erl_element(2, tuplep);</pre>
-    <p>The macros <c>ERL_ATOM_PTR</c> and <c>ERL_INT_VALUE</c> from <c>erl_eterm</c> can be used to obtain the actual values of the atom and the integer. The atom value is represented as a string. By comparing this value with the strings "foo" and "bar" it can be decided which function to call.</p>
+    <p>The macros <c>ERL_ATOM_PTR</c> and <c>ERL_INT_VALUE</c> from
+      <c>erl_eterm</c> can be used to obtain the actual values of the
+      atom and the integer. The atom value is represented as a string.
+      By comparing this value with the strings "foo" and "bar", it can
+      be decided which function to call:</p>
     <pre>
     if (strncmp(ERL_ATOM_PTR(fnp), "foo", 3) == 0) {
       res = foo(ERL_INT_VALUE(argp));
     } else if (strncmp(ERL_ATOM_PTR(fnp), "bar", 3) == 0) {
       res = bar(ERL_INT_VALUE(argp));
     }</pre>
-    <p>Now an <c>ETERM</c> struct representing the integer result can be constructed using the function <c>erl_mk_int()</c> from <c>erl_eterm</c>. It is also possible to use the function <c>erl_format()</c> from the module <c>erl_format</c>.</p>
+    <p>Now an <c>ETERM</c> struct that represents the integer result
+      can be constructed using the function <c>erl_mk_int()</c> from
+      <c>erl_eterm</c>. The function
+      <c>erl_format()</c> from the module <c>erl_format</c> can also
+      be used:</p>
     <pre>
     intp = erl_mk_int(res);</pre>
-    <p>The resulting <c>ETERM</c> struct is converted into the Erlang external term format using the function <c>erl_encode()</c> from <c>erl_marshal</c> and sent to Erlang using <c>write_cmd()</c>.</p>
+    <p>The resulting <c>ETERM</c> struct is converted into the Erlang
+      external term format using the function <c>erl_encode()</c> from
+      <c>erl_marshal</c> and sent to Erlang using
+      <c>write_cmd()</c>:</p>
     <pre>
     erl_encode(intp, buf);
     write_cmd(buf, erl_eterm_len(intp));</pre>
-    <p>Last, the memory allocated by the <c>ETERM</c> creating functions must be freed.</p>
+    <p>Finally, the memory allocated by the <c>ETERM</c> creating
+      functions must be freed:</p>
     <pre>
     erl_free_compound(tuplep);
     erl_free_term(fnp);
     erl_free_term(argp);
     erl_free_term(intp);</pre>
-    <p>The resulting C program is shown below:</p>
+    <p>The resulting C program is as follows:</p>
     <codeinclude file="ei.c" type="c"/>
   </section>
 
   <section>
     <title>Running the Example</title>
-    <p>1. Compile the C code, providing the paths to the include files <c>erl_interface.h</c> and <c>ei.h</c>, and to the libraries <c>erl_interface</c> and <c>ei</c>.</p>
+    <p><em>Step 1.</em> Compile the C code. This provides the paths to
+      the include files <c>erl_interface.h</c> and <c>ei.h</c>, and
+      also to the libraries <c>erl_interface</c> and <c>ei</c>:</p>
     <pre>
 unix> <input>gcc -o extprg -I/usr/local/otp/lib/erl_interface-3.2.1/include \\ </input>
 <input>      -L/usr/local/otp/lib/erl_interface-3.2.1/lib \\ </input>
 <input>      complex.c erl_comm.c ei.c -lerl_interface -lei</input></pre>
-    <p>In R5B and later versions of OTP, the <c>include</c> and <c>lib</c> directories are situated under <c>OTPROOT/lib/erl_interface-VSN</c>, where <c>OTPROOT</c> is the root directory of the OTP installation (<c>/usr/local/otp</c> in the example above) and <c>VSN</c> is the version of the <c>erl_interface</c> application (3.2.1 in the example above).      <br></br>
-
-      In R4B and earlier versions of OTP, <c>include</c> and <c>lib</c> are situated under <c>OTPROOT/usr</c>.</p>
-    <p>2. Start Erlang and compile the Erlang code.</p>
+    <p>In Erlang/OTP R5B and later versions of OTP, the <c>include</c>
+      and <c>lib</c> directories are situated under
+      <c>OTPROOT/lib/erl_interface-VSN</c>, where <c>OTPROOT</c> is
+      the root directory of the OTP installation
+      (<c>/usr/local/otp</c> in the recent example) and <c>VSN</c> is
+      the version of the Erl_interface application (3.2.1 in the
+      recent example).</p>
+    <p>In R4B and earlier versions of OTP, <c>include</c> and <c>lib</c>
+      are situated under <c>OTPROOT/usr</c>.</p>
+    <p><em>Step 2.</em> Start Erlang and compile the Erlang code:</p>
     <pre>
 unix> <input>erl</input>
 Erlang (BEAM) emulator version 4.9.1.2
@@ -125,7 +181,7 @@ Erlang (BEAM) emulator version 4.9.1.2
 Eshell V4.9.1.2 (abort with ^G)
 1> <input>c(complex2).</input>
 {ok,complex2}</pre>
-    <p>3. Run the example.</p>
+    <p><em>Step 3.</em> Run the example:</p>
     <pre>
 2> <input>complex2:start("extprg").</input>
 &lt;0.34.0>
diff --git a/system/doc/tutorial/example.xmlsrc b/system/doc/tutorial/example.xmlsrc
index f87eb217e9..e205ca189e 100644
--- a/system/doc/tutorial/example.xmlsrc
+++ b/system/doc/tutorial/example.xmlsrc
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2000</year><year>2013</year>
+      <year>2000</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -31,16 +31,25 @@
 
   <section>
     <title>Description</title>
-    <p>A common interoperability situation is when there exists a piece of code solving some complex problem, and we would like to incorporate this piece of code in our Erlang program. Suppose for example we have the following C functions that we would like to be able to call from Erlang.</p>
-    <codeinclude file="complex.c" tag="" type="none"></codeinclude>
-    <p>(For the sake of keeping the example as simple as possible, the functions are not very complicated in this case).</p>
-    <p>Preferably we would like to able to call <c>foo</c> and <c>bar</c> without having to bother about them actually being C functions.</p>
+    <p>A common interoperability situation is when you want to incorporate
+      a piece of code, solving a complex problem, in your Erlang
+      program. Suppose for example, that you have the following C
+      functions that you would like to call from Erlang:</p>
+      <codeinclude file="complex.c" tag="" type="none"></codeinclude>
+    <p>The functions are deliberately kept as simple as possible, for
+      readability reasons.</p>
+    <p>From an Erlang perspektive, it is preferable to be able to call
+      <c>foo</c> and <c>bar</c> without having to bother about that
+      they are C functions:</p>
     <pre>
 % Erlang code
 ...
 Res = complex:foo(X),
 ...</pre>
-    <p>The communication with C is hidden in the implementation of <c>complex.erl</c>. In the following chapters it is shown how this module can be implemented using the different interoperability mechanisms.</p>
+    <p>Here, the communication with C is hidden in the implementation
+      of <c>complex.erl</c>.
+      In the following sections, it is shown how this module can be
+      implemented using the different interoperability mechanisms.</p>
   </section>
 </chapter>
 
diff --git a/system/doc/tutorial/introduction.xml b/system/doc/tutorial/introduction.xml
index ed86a00f76..dcf462e311 100644
--- a/system/doc/tutorial/introduction.xml
+++ b/system/doc/tutorial/introduction.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2000</year><year>2013</year>
+      <year>2000</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -28,18 +28,34 @@
     <rev></rev>
     <file>introduction.xml</file>
   </header>
+  <marker id="interoperability tutorial"></marker>
+  <p>This section informs on interoperability, that is, information
+    exchange, between Erlang and other programming languages. The
+    included examples mainly treat interoperability between Erlang and
+    C.</p>
 
   <section>
     <title>Purpose</title>
-    <p>The purpose of this tutorial is to give the reader an orientation of the different interoperability mechanisms that can be used when integrating a program written in Erlang with a program written in another programming language, from the Erlang programmer's point of view.</p>
+    <p>The purpose of this tutorial is to describe different
+      interoperability mechanisms that can be used when integrating a
+      program written in Erlang with a program written in another
+      programming language, from the Erlang programmer's
+      perspective.</p>
   </section>
 
   <section>
     <title>Prerequisites</title>
-    <p>It is assumed that the reader is a skilled Erlang programmer, familiar with concepts such as Erlang data types, processes, messages and error handling.</p>
-    <p>To illustrate the interoperability principles C programs running in a UNIX environment have been used. It is assumed that the reader has enough knowledge to be able to apply these principles to the relevant programming languages and platforms.</p>
+    <p>It is assumed that you are a skilled Erlang programmer,
+      familiar with concepts such as Erlang data types, processes,
+      messages, and error handling.</p>
+    <p>To illustrate the interoperability principles, C programs
+      running in a UNIX environment have been used. It is assumed that
+      you have enough knowledge to apply these principles to the
+      relevant programming languages and platforms.</p>
     <note>
-      <p>For the sake of readability, the example code has been kept as simple as possible. It does not include functionality such as error handling, which might be vital in a real-life system.</p>
+      <p>For readability, the example code is kept as simple as
+        possible. For example, it does not include error handling,
+        which might be vital in a real-life system.</p>
     </note>
   </section>
 </chapter>
diff --git a/system/doc/tutorial/nif.xmlsrc b/system/doc/tutorial/nif.xmlsrc
index 8ddad60f74..c79370e8c8 100644
--- a/system/doc/tutorial/nif.xmlsrc
+++ b/system/doc/tutorial/nif.xmlsrc
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2000</year><year>2013</year>
+      <year>2000</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -28,92 +28,105 @@
     <rev></rev>
     <file>nif.xml</file>
   </header>
-  <p>This is an example of how to solve the <seealso marker="example">example problem</seealso>
-     by using NIFs. NIFs were introduced in R13B03 as an experimental
-     feature. It is a simpler and more efficient way of calling C-code
-     than using port drivers. NIFs are most suitable for synchronous functions like
-     <c>foo</c> and <c>bar</c> in the example, that does some
-     relatively short calculations without side effects and return the result.</p>
-  <section>
-    <title>NIFs</title>
-    <p>A NIF (Native Implemented Function) is a function that is
-      implemented in C instead of Erlang. NIFs appear as any other functions to
-      the callers. They belong to a module and are called like any other Erlang
-      functions. The NIFs of a module are compiled and linked into a dynamic
-      loadable shared library (SO in Unix, DLL in Windows). The NIF library must
-      be loaded in runtime by the Erlang code of the module.</p>
-    <p>Since a NIF library is dynamically linked into the emulator
-      process, this is the fastest way of calling C-code from Erlang (alongside
-      port drivers). Calling NIFs requires no context switches. But it is also
-      the least safe, because a crash in a NIF will bring the emulator down
-      too.</p>
-  </section>
+  <p>This section outlines an example of how to solve the example
+    problem in <seealso marker="example">Problem Example</seealso>
+    by using Native Implemented Functions (NIFs).</p>
+  <p>NIFs were introduced in Erlang/OTP R13B03 as an experimental
+    feature. It is a simpler and more efficient way of calling C-code
+    than using port drivers. NIFs are most suitable for synchronous
+    functions, such as <c>foo</c> and <c>bar</c> in the example, that
+    do some relatively short calculations without side effects and
+    return the result.</p>
+  <p>A NIF is a function that is implemented in C instead of Erlang.
+    NIFs appear as any other functions to the callers. They belong to
+    a module and are called like any other Erlang functions. The NIFs
+    of a module are compiled and linked into a dynamic loadable,
+    shared library (SO in UNIX, DLL in Windows). The NIF library must
+    be loaded in runtime by the Erlang code of the module.</p>
+  <p>As a NIF library is dynamically linked into the emulator process,
+    this is the fastest way of calling C-code from Erlang (alongside
+    port drivers). Calling NIFs requires no context switches. But it
+    is also the least safe, because a crash in a NIF brings the
+    emulator down too.</p>
 
   <section>
     <title>Erlang Program</title>
-    <p>Even if all functions of a module will be NIFs, you still need an Erlang
-      module for two reasons. First, the NIF library must be explicitly loaded
-      by Erlang code in the same module. Second, all NIFs of a module must have
-      an Erlang implementation as well. Normally these are minimal stub
-      implementations that throw an exception. But it can also be used as
-      fallback implementations for functions that do not have native
-      implemenations on some architectures.</p>
-    <p>NIF libraries are loaded by calling <c>erlang:load_nif/2</c>, with the
-      name of the shared library as argument. The second argument can be any
-      term that will be passed on to the library and used for
-      initialization.</p>
+    <p>Even if all functions of a module are NIFs, an Erlang
+      module is still needed for two reasons:</p>
+    <list type="bulleted">
+      <item>The NIF library must be explicitly loaded by
+      Erlang code in the same module.</item>
+      <item>All NIFs of a module must have an Erlang implementation
+      as well.</item>
+     </list>
+   <p>Normally these are minimal stub implementations that throw an
+     exception. But they can also be used as fallback implementations
+     for functions that do not have native implemenations on some
+     architectures.</p>
+   <p>NIF libraries are loaded by calling <c>erlang:load_nif/2</c>,
+     with the name of the shared library as argument. The second
+     argument can be any term that will be passed on to the library
+     and used for initialization:</p>
 
     <codeinclude file="complex6.erl" tag="" type="none"></codeinclude>
 
-    <p>We use the directive <c>on_load</c> to get function <c>init</c> to be
-      automatically called when the module is loaded. If <c>init</c>
-      returns anything other than <c>ok</c>, such when the loading of
-      the NIF library fails in this example, the module will be
-      unloaded and calls to functions within it will fail.</p>
-    <p>Loading the NIF library will override the stub implementations
+    <p>Here, the directive <c>on_load</c> is used to get function
+      <c>init</c> to be automatically called when the module is
+      loaded. If <c>init</c> returns anything other than <c>ok</c>,
+      such when the loading of the NIF library fails in this example,
+      the module is unloaded and calls to functions within it,
+      fail.</p>
+    <p>Loading the NIF library overrides the stub implementations
       and cause calls to <c>foo</c> and <c>bar</c> to be dispatched to
       the NIF implementations instead.</p>
   </section>
   <section>
-    <title>NIF library code</title>
+    <title>NIF Library Code</title>
     <p>The NIFs of the module are compiled and linked into a
       shared library. Each NIF is implemented as a normal C function. The macro
       <c>ERL_NIF_INIT</c> together with an array of structures defines the names,
-      arity and function pointers of all the NIFs in the module. The header
-      file <c>erl_nif.h</c> must be included. Since the library is a shared
-      module, not a program, no main function should be present.</p>
+      arity, and function pointers of all the NIFs in the module. The header
+      file <c>erl_nif.h</c> must be included. As the library is a shared
+      module, not a program, no main function is to be present.</p>
     <p>The function arguments passed to a NIF appears in an array <c>argv</c>,
-      with <c>argc</c> as the length of the array and thus the arity of the
+      with <c>argc</c> as the length of the array, and thus the arity of the
       function. The Nth argument of the function can be accessed as
       <c>argv[N-1]</c>. NIFs also take an environment argument that
       serves as an opaque handle that is needed to be passed on to
       most API functions. The environment contains information about
-      the calling Erlang process.</p>
+      the calling Erlang process:</p>
 
     <codeinclude file="complex6_nif.c" tag="" type="none"></codeinclude>
 
-    <p>The first argument to <c>ERL_NIF_INIT</c> must be the name of the
+    <p>Here,<c>ERL_NIF_INIT</c> has the following arguments:</p>
+    <list type="bulleted">
+      <item><p>The first argument must be the name of the
       Erlang module as a C-identifier. It will be stringified by the
-      macro. The second argument is the array of <c>ErlNifFunc</c>
-      structures containing name, arity and function pointer of
-      each NIF. The other arguments are pointers to callback functions
-      that can be used to initialize the library. We do not use them
-      in this simple example so we set them all to <c>NULL</c>.</p>
+      macro.</p>
+      </item>
+      <item>The second argument is the array of <c>ErlNifFunc</c>
+      structures containing name, arity, and function pointer of
+      each NIF.</item>
+      <item>The remaining arguments are pointers to callback functions
+      that can be used to initialize the library. They are not used
+      in this simple example, hence they are all set to <c>NULL</c>.</item>
+    </list>
     <p>Function arguments and return values are represented as values
-      of type <c>ERL_NIF_TERM</c>. We use functions like <c>enif_get_int</c> 
-      and <c>enif_make_int</c> to convert between Erlang term and C-type. 
-      If the function argument <c>argv[0]</c> is not an integer then
-      <c>enif_get_int</c> will return false, in which case we return
+      of type <c>ERL_NIF_TERM</c>. Here, functions like <c>enif_get_int</c>
+      and <c>enif_make_int</c> are used to convert between Erlang term
+      and C-type.
+      If the function argument <c>argv[0]</c> is not an integer,
+      <c>enif_get_int</c> returns false, in which case it returns
       by throwing a <c>badarg</c>-exception with <c>enif_make_badarg</c>.</p>
   </section>
 
   <section>
     <title>Running the Example</title>
-    <p>1. Compile the C code.</p>
+    <p><em>Step 1.</em> Compile the C code:</p>
     <pre>
 unix> <input>gcc -o complex6_nif.so -fpic -shared complex.c complex6_nif.c</input>
 windows> <input>cl -LD -MD -Fe complex6_nif.dll complex.c complex6_nif.c</input></pre>
-    <p>2. Start Erlang and compile the Erlang code.</p>
+    <p><em>Step 2:</em> Start Erlang and compile the Erlang code:</p>
     <pre>
 > <input>erl</input>
 Erlang R13B04 (erts-5.7.5) [64-bit] [smp:4:4] [rq:4] [async-threads:0] [kernel-poll:false]
@@ -121,7 +134,7 @@ Erlang R13B04 (erts-5.7.5) [64-bit] [smp:4:4] [rq:4] [async-threads:0] [kernel-p
 Eshell V5.7.5  (abort with ^G)
 1> <input>c(complex6).</input>
 {ok,complex6}</pre>
-    <p>3. Run the example.</p>
+    <p><em>Step 3:</em> Run the example:</p>
 <pre>
 3> <input>complex6:foo(3).</input>
 4
diff --git a/system/doc/tutorial/overview.xml b/system/doc/tutorial/overview.xml
index 1fe1aad22b..3814a135b4 100644
--- a/system/doc/tutorial/overview.xml
+++ b/system/doc/tutorial/overview.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2000</year><year>2013</year>
+      <year>2000</year><year>2015</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -31,35 +31,90 @@
 
   <section>
     <title>Built-In Mechanisms</title>
-    <p>There are two interoperability mechanisms built into the Erlang runtime system. One is <em>distributed Erlang</em> and the other one is <em>ports</em>. A variation of ports is <em>linked-in drivers</em>.</p>
+    <p>Two interoperability mechanisms are built into the Erlang
+      runtime system, <em>distributed Erlang</em> and <em>ports</em>.
+      A variation of ports is <em>linked-in drivers</em>.</p>
     <marker id="dist"></marker>
 
     <section>
       <title>Distributed Erlang</title>
-      <p>An Erlang runtime system is made into a distributed Erlang node by giving it a name. A distributed Erlang node can connect to and monitor other nodes, it is also possible to spawn processes at other nodes. Message passing and error handling between processes at different nodes are transparent. There exists a number of useful <c>stdlib</c> modules intended for use in a distributed Erlang system; for example, <c>global</c> which provides global name registration. The distribution mechanism is implemented using TCP/IP sockets.</p>
-      <p><em>When to use:</em> Distributed Erlang is primarily used for communication Erlang-Erlang. It can also be used for communication between Erlang and C, if the C program is implemented as a <seealso marker="#cnode">C node</seealso>, see below.</p>
-      <p><em>Where to read more:</em> Distributed Erlang and some distributed programming techniques are described in the Erlang book.        <br></br>
-
-        In the Erlang/OTP documentation there is a chapter about distributed Erlang in "Getting Started" (User's Guide).        <br></br>
-
-        Relevant man pages are <c>erlang</c> (describes the BIFs) and <c>global</c>, <c>net_adm</c>, <c>pg2</c>, <c>rpc</c>, <c>pool</c> and <c>slave</c>.</p>
+      <p>An Erlang runtime system is made a distributed Erlang node by
+        giving it a name. A distributed Erlang node can connect to,
+        and monitor, other nodes. It can also spawn processes at other
+        nodes. Message passing and error handling between processes at
+        different nodes are transparent. A number of useful STDLIB
+        modules are available in a distributed Erlang system. For
+        example, <c>global</c>, which provides global name
+        registration. The distribution mechanism is implemented using
+        TCP/IP sockets.</p>
+      <p><em>When to use:</em> Distributed Erlang is primarily used
+        for Erlang-Erlang communication. It can also be used for
+        communication between Erlang and C, if the C program is
+        implemented as a C node, see
+        <seealso marker="#cnode">C and Java Libraries</seealso>.</p>
+      <p><em>Where to read more:</em> Distributed Erlang and some distributed
+      programming techniques are described in the Erlang book.</p>
+      <p>For more information, see <seealso
+        marker="doc/getting_started:conc_prog#Distributed Programming">
+        Distributed Programming.</seealso></p>
+	<p>Relevant manual pages are the following:</p>
+      <list type="bulleted">
+       <item><seealso marker="erts:erlang">erlang</seealso> manual page in ERTS
+       (describes the BIFs)</item>
+       <item><seealso marker="kernel:global">global</seealso> manual page in Kernel</item>
+       <item><seealso marker="kernel:net_adm">net_adm</seealso> manual page in Kernel</item>
+       <item><seealso marker="kernel:pg2">pg2</seealso> manual page in Kernel</item>
+       <item><seealso marker="kernel:rpc">rpc</seealso> manual page in Kernel</item>
+       <item><seealso marker="stdlib:pool">pool</seealso> manual page in STDLIB</item>
+       <item><seealso marker="stdlib:slave">slave</seealso> manual page in STDLIB</item>
+      </list>
     </section>
 
     <section>
       <title>Ports and Linked-In Drivers</title>
-      <p>Ports provide the basic mechanism for communication with the external world, from Erlang's point of view. They provide a byte-oriented interface to an external program. When a port has been created, Erlang can communicate with it by sending and receiving lists of bytes (not Erlang terms). This means that the programmer may have to invent a suitable encoding and decoding scheme.</p>
-      <p>The actual implementation of the port mechanism depends on the platform. In the Unix case, pipes are used and the external program should as default read from standard input and write to standard output. Theoretically, the external program could be written in any programming language as long as it can handle the interprocess communication mechanism with which the port is implemented.</p>
-      <p>The external program resides in another OS process than the Erlang runtime system. In some cases this is not acceptable, consider for example drivers with very hard time requirements. It is therefore possible to write a program in C according to certain principles and dynamically link it to the Erlang runtime system, this is called a linked-in driver.</p>
-      <p><em>When to use:</em> Being the basic mechanism, ports can be used for all kinds of interoperability situations where the Erlang program and the other program runs on the same machine. Programming is fairly straight-forward.        <br></br>
-
-        Linked-in drivers involves writing certain call-back functions in C. Very good skills are required as the code is linked to the Erlang runtime system.</p>
+      <p>Ports provide the basic mechanism for communication with the
+        external world, from Erlang's point of view. The ports provide
+        a byte-oriented interface to an external program. When a port
+        is created, Erlang can communicate with it by sending and
+        receiving lists of bytes (not Erlang terms). This means that
+        the programmer might have to invent a suitable encoding and
+        decoding scheme.</p>
+      <p>The implementation of the port mechanism depends on the
+        platform. For UNIX, pipes are used and the external program is
+        assumed to read from standard input and write to standard
+        output. The external program can be written in any programming
+        language as long as it can handle the interprocess
+        communication mechanism with which the port is
+        implemented.</p>
+      <p>The external program resides in another OS process than the
+        Erlang runtime system. In some cases this is not acceptable.
+        Consider, for example, drivers with very hard time
+        requirements. It is therefore possible to write a program in C
+        according to certain principles, and dynamically link it to
+        the Erlang runtime system. This is called a <em>linked-in
+        driver</em>.</p>
+      <p><em>When to use:</em> Ports can be used for all kinds of
+        interoperability situations where the Erlang program and the
+        other program runs on the same machine. Programming is fairly
+        straight-forward.</p>
+      <p>Linked-in drivers involves writing certain call-back
+        functions in C. This requires very good skills as the code is
+        linked to the Erlang runtime system.</p>
       <warning>
-        <p>An erroneous linked-in driver will cause the entire Erlang runtime system to leak memory, hang or crash.</p>
+        <p>A faulty linked-in driver causes the entire Erlang runtime
+	  system to leak memory, hang, or crash.</p>
       </warning>
-      <p><em>Where to read more:</em> Ports are described in the "Miscellaneous Items" chapter of the Erlang book. Linked-in drivers are described in Appendix E.        <br></br>
-
-        The BIF <c>open_port/2</c> is documented in the man page for <c>erlang</c>. For linked-in drivers, the programmer needs to read the information in the man page for <c>erl_ddll</c>.</p>
-      <p><em>Examples:</em><seealso marker="c_port">Port example</seealso>.</p>
+      <p><em>Where to read more:</em> Ports are described in section
+        "Miscellaneous Items" of the Erlang book. Linked-in drivers
+        are described in Appendix E.</p>
+      <p>The BIF <c>open_port/2</c> is documented in the
+        <seealso marker="erts:erlang">erlang</seealso> manual page in
+	ERTS.</p>
+      <p>For linked-in drivers, the programmer needs to read the
+        <seealso marker="kernel:erl_ddll">erl_ddll</seealso> manual
+        page in Kernel.</p>
+      <p><em>Examples:</em> Port example in <seealso marker="c_port">
+        Ports</seealso>.</p>
     </section>
   </section>
 
@@ -68,64 +123,152 @@
 
     <section>
       <title>Erl_Interface</title>
-      <p>Very often the program at the other side of a port is a C program. To help the C programmer a library called Erl_Interface has been developed. It consists of five parts:</p>
+      <p>The program at the other side of a port is often a C program.
+        To help the C programmer, the Erl_Interface library
+        has been developed, including the following five parts:</p>
       <list type="bulleted">
-        <item><c>erl_marshal</c>, <c>erl_eterm</c>, <c>erl_format</c>, <c>erl_malloc</c> Handling of the Erlang external term format.</item>
-        <item><c>erl_connect</c> Communication with distributed Erlang, see <seealso marker="#cnode">C nodes</seealso> below.</item>
-        <item><c>erl_error</c> Error print routines.</item>
-        <item><c>erl_global</c> Access globally registered names.</item>
-        <item><c>Registry</c> Store and backup of key-value pairs.</item>
+        <item>
+	<c>erl_marshal</c>, <c>erl_eterm</c>, <c>erl_format</c>, and
+	<c>erl_malloc</c>: Handling of the Erlang external term format</item>
+        <item>
+	<c>erl_connect</c>:
+	Communication with distributed Erlang, see <seealso
+	marker="#cnode">C nodes</seealso> below</item>
+        <item>
+	<c>erl_error</c>:
+	Error print routines</item>
+        <item>
+	<c>erl_global</c>:
+	Access globally registered names</item>
+        <item>
+	<c>Registry</c>:
+	Store and backup of key-value pairs</item>
       </list>
-      <p>The Erlang external term format is a representation of an Erlang term as a sequence of bytes, a binary. Conversion between the two representations is done using BIFs.</p>
+      <p>The Erlang external term format is a representation of an
+        Erlang term as a sequence of bytes, that is, a binary.
+        Conversion between the two representations is done using the
+        following BIFs:</p>
       <pre>
 Binary = term_to_binary(Term)
 Term = binary_to_term(Binary)</pre>
-      <p>A port can be set to use binaries instead of lists of bytes. It is then not necessary to invent any encoding/decoding scheme. Erl_Interface functions are used for unpacking the binary and convert it into a struct similar to an Erlang term. Such a struct can be manipulated in different ways and be converted to the Erlang external format and sent to Erlang.</p>
+      <p>A port can be set to use binaries instead of lists of bytes.
+        It is then not necessary to invent any encoding/decoding
+        scheme. Erl_Interface functions are used for unpacking the
+        binary and convert it into a struct similar to an Erlang term.
+        Such a struct can be manipulated in different ways, be
+        converted to the Erlang external format, and sent to
+        Erlang.</p>
       <p><em>When to use:</em> In C code, in conjunction with Erlang binaries.</p>
-      <p><em>Where to read more:</em> Read about the Erl_Interface User's Guide; Command Reference and Library Reference. In R5B and earlier versions the information can be found under the Kernel application.</p>
-    </section>
-    <p><em>Examples:</em><seealso marker="erl_interface">erl_interface example</seealso>.</p>
+      <p><em>Where to read more:</em> See the Erlang Interface User's
+        Guide, Command Reference, and Library Reference. In Erlang/OTP
+        R5B, and earlier versions, the information is part of the
+        Kernel application.</p> </section>
+    <p><em>Examples:</em> Erl_Interface example in
+       <seealso marker="erl_interface">Erl_Interface</seealso>.</p>
     <marker id="cnode"></marker>
 
     <section>
       <title>C Nodes</title>
-      <p>A C program which uses the Erl_Interface functions for setting up a connection to and communicating with a distributed Erlang node is called a <em>C node</em>, or a <em>hidden node</em>. The main advantage with a C node is that the communication from the Erlang programmer's point of view is extremely easy, since the C program behaves as a distributed Erlang node.</p>
-      <p><em>When to use:</em> C nodes can typically be used on device processors (as opposed to control processors) where C is a better choice than Erlang due to memory limitations and/or application characteristics.</p>
-      <p><em>Where to read more:</em> In the <c>erl_connect</c> part of the Erl_Interface documentation, see above. The programmer also needs to be familiar with TCP/IP sockets, see <seealso marker="#sockets">below</seealso>, and distributed Erlang, see <seealso marker="#dist">above</seealso>.</p>
-      <p><em>Examples:</em><seealso marker="cnode">C node example</seealso>.</p>
+      <p>A C program that uses the Erl_Interface functions for setting
+        up a connection to, and communicating with, a distributed
+        Erlang node is called a <em>C node</em>, or a <em>hidden
+        node</em>. The main advantage with a C node is that the
+        communication from the Erlang programmer's perspective is
+        extremely easy, as the C program behaves as a distributed
+        Erlang node.</p>
+      <p><em>When to use:</em> C nodes can typically be used on device
+        processors (as opposed to control processors) where C is a
+        better choice than Erlang due to memory limitations or
+        application characteristics, or both.</p>
+      <p><em>Where to read more:</em> See the <c>erl_connect</c> part
+        of the Erl_Interface documentation. The programmer also needs
+        to be familiar with TCP/IP sockets, see Sockets in <seealso
+        marker="#sockets">Standard
+        Protocols</seealso> and Distributed Erlang in <seealso
+        marker="#dist">Built-In Mechanisms</seealso>.</p>
+      <p><em>Example:</em> C node example in <seealso marker="cnode">
+        C Nodes</seealso>.</p>
     </section>
 
     <section>
       <title>Jinterface</title>
-      <p>In Erlang/OTP R6B, a library similar to Erl_Interface for Java was added called <em>jinterface</em>.</p>
+      <p>In Erlang/OTP R6B, a library similar to Erl_Interface for
+        Java was added called <em>jinterface</em>. It provides a tool
+        for Java programs to communicate with Erlang nodes.</p>
     </section>
   </section>
 
   <section>
     <title>Standard Protocols</title>
-    <p>Sometimes communication between an Erlang program and another program using a standard protocol is desirable. Erlang/OTP currently supports TCP/IP and UDP <em>sockets</em>, SNMP, HTTP and IIOP (CORBA). Using one of the latter three requires good knowledge about the protocol and is not covered by this tutorial. Please refer to the documentation for the SNMP, Inets and Orber applications, respectively.</p>
+    <p>Sometimes communication between an Erlang program and another
+      program using a standard protocol is desirable. Erlang/OTP
+      currently supports TCP/IP and UDP <em>sockets</em>: as
+      follows:</p>
+    <list type="bulleted">
+       <item>SNMP</item>
+       <item>HTTP</item>
+       <item>IIOP (CORBA)</item>
+     </list>
+    <p>Using one of the latter three requires good knowledge about the
+      protocol and is not covered by this tutorial. See the SNMP,
+      Inets, and Orber applications, respectively.</p>
     <marker id="sockets"></marker>
 
     <section>
       <title>Sockets</title>
-      <p>Simply put, connection-oriented socket communication (TCP/IP) consists of an initiator socket ("server") started at a certain host with a certain port number. A connector socket ("client") aware of the initiator's host name and port number can connect to it and data can be sent between them. Connection-less socket communication (UDP) consists of an initiator socket at a certain host with a certain port number and a connector socket sending data to it. For a detailed description of the socket concept, please refer to a suitable book about network programming. A suggestion is <em>UNIX Network Programming, Volume 1: Networking APIs - Sockets and XTI</em> by W. Richard Stevens, ISBN: 013490012X.</p>
-      <p>In Erlang/OTP, access to TCP/IP and UDP sockets is provided by the 
-        Kernel modules <c>gen_tcp</c> and <c>gen_udp</c>. Both are easy to 
-        use and do not require any deeper knowledge about the socket concept.</p>
-      <p><em>When to use:</em> For programs running on the same or on another machine than the Erlang program.</p>
-      <p><em>Where to read more:</em> The man pages for <c>gen_tcp</c> and <c>gen_udp</c>.</p>
+      <p>Simply put, connection-oriented socket communication (TCP/IP)
+        consists of an initiator socket ("server") started at a
+        certain host with a certain port number. A connector socket
+        ("client"), which is aware of the initiator host name and port
+        number, can connect to it and data can be sent between
+        them.</p>
+      <p>Connection-less socket communication (UDP) consists of an
+        initiator socket at a certain host with a certain port number
+        and a connector socket sending data to it.</p>
+      <p>For a detailed description of the socket concept, refer to a
+        suitable book about network programming. A suggestion is
+        <em>UNIX Network Programming, Volume 1: Networking APIs -
+        Sockets and XTI</em> by W. Richard Stevens, ISBN:
+        013490012X.</p>
+      <p>In Erlang/OTP, access to TCP/IP and UDP sockets is provided
+        by the modules <c>gen_tcp</c> and <c>gen_udp</c> in
+        Kernel. Both are easy to use and do not require
+        detailed knowledge about the socket concept.</p>
+      <p><em>When to use:</em> For programs running on the same or on
+        another machine than the Erlang program.</p>
+      <p><em>Where to read more:</em> See the <seealso
+        marker="kernel:gen_tcp">gen_tcp</seealso> and the <seealso
+        marker="kernel:gen_udp">gen_udp</seealso> manual pages in
+        Kernel.</p>
     </section>
   </section>
 
   <section>
     <title>IC</title>
-    <p>IC (IDL Compiler) is an interface generator which given an IDL interface specification automatically generates stub code in Erlang, C or Java. Please refer to the IC User's Guide and IC Reference Manual.</p>
+    <p>IC (Erlang IDL Compiler) is an interface generator that, given
+      an IDL interface specification, automatically generates stub
+      code in Erlang, C, or Java. See the IC User's Guide and IC
+      Reference Manual.</p>
+    <p>For details, see the <seealso marker="ic:ic">ic</seealso>
+      manual page in IC.</p>
   </section>
 
   <section>
     <title>Old Applications</title>
-    <p>There are two old applications of interest when talking about interoperability: <em>IG</em> which was removed in Erlang/OTP R6B and <em>Jive</em> which was removed in Erlang/OTP R7B. Both applications have been replaced by IC and are mentioned here for reference only.</p>
-    <p>IG (Interface Generator) automatically generated code for port or socket communication between an Erlang program and a C program, given a C header file with certain keywords. Jive provided a simple interface between an Erlang program and a Java program.</p>
+    <p>Two old applications are of interest regarding
+      interoperability. Both have been replaced by IC and are
+      mentioned here for reference only:</p>
+    <list type="bulleted">
+       <item><p>IG - Removed from Erlang/OTP R6B.</p>
+       <p>IG (Interface Generator) automatically generated code for
+         port or socket communication between an Erlang program and a
+         C program, given a C header file with certain keywords.</p>
+      </item>
+       <item><p>Jive -  Removed from Erlang/OTP R7B.</p>
+       <p>Jive provided a simple interface between an Erlang program
+         and a Java program.</p>
+      </item>
+     </list>
   </section>
 </chapter>